diff --git a/media/player/videojs/amd/build/video-lazy.min.js b/media/player/videojs/amd/build/video-lazy.min.js
index d49435a7a82..72bad06d90a 100644
--- a/media/player/videojs/amd/build/video-lazy.min.js
+++ b/media/player/videojs/amd/build/video-lazy.min.js
@@ -1,6 +1,6 @@
 /**
  * @license
- * Video.js 7.20.3 <http://videojs.com/>
+ * Video.js 8.3.0 <http://videojs.com/>
  * Copyright Brightcove, Inc. <https://www.brightcove.com/>
  * Available under Apache License Version 2.0
  * <https://github.com/videojs/video.js/blob/main/LICENSE>
@@ -9,7 +9,7 @@
  * Available under Apache License Version 2.0
  * <https://github.com/mozilla/vtt.js/blob/main/LICENSE>
  */
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event.target[event.type]&&event.target[event.type](),targetData.disabled=!1)}return!event.defaultPrevented}function one(elem,type,fn){if(Array.isArray(type))return _handleMultipleEvents(one,elem,type,fn);var func=function func(){off(elem,type,func),fn.apply(this,arguments)};func.guid=fn.guid=fn.guid||newGUID(),on(elem,type,func)}function any(elem,type,fn){var func=function func(){off(elem,type,func),fn.apply(this,arguments)};func.guid=fn.guid=fn.guid||newGUID(),on(elem,type,func)}var EVENT_MAP,Events=Object.freeze({__proto__:null,fixEvent:fixEvent,on:on,off:off,trigger:trigger,one:one,any:any}),bind=function(context,fn,uid){fn.guid||(fn.guid=newGUID());var bound=fn.bind(context);return bound.guid=uid?uid+"_"+fn.guid:fn.guid,bound},throttle=function(fn,wait){var last=window.performance.now();return function(){var now=window.performance.now();now-last>=wait&&(fn.apply(void 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event&&(event={type:type}),event=fixEvent(event),this.allowedEvents_[type]&&this["on"+type]&&this["on"+type](event),trigger(this,event)},EventTarget$2.prototype.dispatchEvent=EventTarget$2.prototype.trigger,EventTarget$2.prototype.queueTrigger=function(event){var _this=this;EVENT_MAP||(EVENT_MAP=new Map);var type=event.type||event,map=EVENT_MAP.get(this);map||(map=new Map,EVENT_MAP.set(this,map));var oldTimeout=map.get(type);map.delete(type),window.clearTimeout(oldTimeout);var timeout=window.setTimeout((function(){0===map.size&&(map=null,EVENT_MAP.delete(_this)),_this.trigger(event)}),0);map.set(type,timeout)};var objName=function(obj){return"function"==typeof obj.name?obj.name():"string"==typeof obj.name?obj.name:obj.name_?obj.name_:obj.constructor&&obj.constructor.name?obj.constructor.name:typeof obj},isEvented=function(object){return object instanceof EventTarget$2||!!object.eventBusEl_&&["on","one","off","trigger"].every((function(k){return"function"==typeof object[k]}))},isValidEventType=function(type){return"string"==typeof type&&/\S/.test(type)||Array.isArray(type)&&!!type.length},validateTarget=function(target,obj,fnName){if(!target||!target.nodeName&&!isEvented(target))throw new Error("Invalid target for "+objName(obj)+"#"+fnName+"; must be a DOM node or evented object.")},validateEventType=function(type,obj,fnName){if(!isValidEventType(type))throw new Error("Invalid event type for "+objName(obj)+"#"+fnName+"; must be a non-empty string or array.")},validateListener=function(listener,obj,fnName){if("function"!=typeof listener)throw new Error("Invalid listener for "+objName(obj)+"#"+fnName+"; must be a function.")},normalizeListenArgs=function(self,args,fnName){var target,type,listener,isTargetingSelf=args.length<3||args[0]===self||args[0]===self.eventBusEl_;return isTargetingSelf?(target=self.eventBusEl_,args.length>=3&&args.shift(),type=args[0],listener=args[1]):(target=args[0],type=args[1],listener=args[2]),validateTarget(target,self,fnName),validateEventType(type,self,fnName),validateListener(listener,self,fnName),{isTargetingSelf:isTargetingSelf,target:target,type:type,listener:listener=bind(self,listener)}},listen=function(target,method,type,listener){validateTarget(target,target,method),target.nodeName?Events[method](target,type,listener):target[method](type,listener)},EventedMixin={on:function(){for(var _this=this,_len=arguments.length,args=new Array(_len),_key=0;_key<_len;_key++)args[_key]=arguments[_key];var _normalizeListenArgs=normalizeListenArgs(this,args,"on"),isTargetingSelf=_normalizeListenArgs.isTargetingSelf,target=_normalizeListenArgs.target,type=_normalizeListenArgs.type,listener=_normalizeListenArgs.listener;if(listen(target,"on",type,listener),!isTargetingSelf){var removeListenerOnDispose=function(){return _this.off(target,type,listener)};removeListenerOnDispose.guid=listener.guid;var removeRemoverOnTargetDispose=function(){return _this.off("dispose",removeListenerOnDispose)};removeRemoverOnTargetDispose.guid=listener.guid,listen(this,"on","dispose",removeListenerOnDispose),listen(target,"on","dispose",removeRemoverOnTargetDispose)}},one:function(){for(var _this2=this,_len2=arguments.length,args=new Array(_len2),_key2=0;_key2<_len2;_key2++)args[_key2]=arguments[_key2];var _normalizeListenArgs2=normalizeListenArgs(this,args,"one"),isTargetingSelf=_normalizeListenArgs2.isTargetingSelf,target=_normalizeListenArgs2.target,type=_normalizeListenArgs2.type,listener=_normalizeListenArgs2.listener;if(isTargetingSelf)listen(target,"one",type,listener);else{var wrapper=function wrapper(){_this2.off(target,type,wrapper);for(var _len3=arguments.length,largs=new Array(_len3),_key3=0;_key3<_len3;_key3++)largs[_key3]=arguments[_key3];listener.apply(null,largs)};wrapper.guid=listener.guid,listen(target,"one",type,wrapper)}},any:function(){for(var _this3=this,_len4=arguments.length,args=new Array(_len4),_key4=0;_key4<_len4;_key4++)args[_key4]=arguments[_key4];var _normalizeListenArgs3=normalizeListenArgs(this,args,"any"),isTargetingSelf=_normalizeListenArgs3.isTargetingSelf,target=_normalizeListenArgs3.target,type=_normalizeListenArgs3.type,listener=_normalizeListenArgs3.listener;if(isTargetingSelf)listen(target,"any",type,listener);else{var wrapper=function wrapper(){_this3.off(target,type,wrapper);for(var _len5=arguments.length,largs=new Array(_len5),_key5=0;_key5<_len5;_key5++)largs[_key5]=arguments[_key5];listener.apply(null,largs)};wrapper.guid=listener.guid,listen(target,"any",type,wrapper)}},off:function(targetOrType,typeOrListener,listener){if(!targetOrType||isValidEventType(targetOrType))off(this.eventBusEl_,targetOrType,typeOrListener);else{var target=targetOrType,type=typeOrListener;validateTarget(target,this,"off"),validateEventType(type,this,"off"),validateListener(listener,this,"off"),listener=bind(this,listener),this.off("dispose",listener),target.nodeName?(off(target,type,listener),off(target,"dispose",listener)):isEvented(target)&&(target.off(type,listener),target.off("dispose",listener))}},trigger:function(event,hash){validateTarget(this.eventBusEl_,this,"trigger");var type=event&&"string"!=typeof event?event.type:event;if(!isValidEventType(type)){var error="Invalid event type for "+objName(this)+"#trigger; must be a non-empty string or object with a type key that has a non-empty value.";if(!event)throw new Error(error);(this.log||log$1).error(error)}return trigger(this.eventBusEl_,event,hash)}};function evented(target,options){void 0===options&&(options={});var eventBusKey=options.eventBusKey;if(eventBusKey){if(!target[eventBusKey].nodeName)throw new Error('The eventBusKey "'+eventBusKey+'" does not refer to an element.');target.eventBusEl_=target[eventBusKey]}else target.eventBusEl_=createEl("span",{className:"vjs-event-bus"});return assign(target,EventedMixin),target.eventedCallbacks&&target.eventedCallbacks.forEach((function(callback){callback()})),target.on("dispose",(function(){target.off(),[target,target.el_,target.eventBusEl_].forEach((function(val){val&&DomData.has(val)&&DomData.delete(val)})),window.setTimeout((function(){target.eventBusEl_=null}),0)})),target}var StatefulMixin={state:{},setState:function(stateUpdates){var changes,_this=this;return"function"==typeof stateUpdates&&(stateUpdates=stateUpdates()),each(stateUpdates,(function(value,key){_this.state[key]!==value&&((changes=changes||{})[key]={from:_this.state[key],to:value}),_this.state[key]=value})),changes&&isEvented(this)&&this.trigger({changes:changes,type:"statechanged"}),changes}};function stateful(target,defaultState){return assign(target,StatefulMixin),target.state=assign({},target.state,defaultState),"function"==typeof target.handleStateChanged&&isEvented(target)&&target.on("statechanged",target.handleStateChanged),target}var toLowerCase=function(string){return"string"!=typeof string?string:string.replace(/./,(function(w){return w.toLowerCase()}))},toTitleCase$1=function(string){return"string"!=typeof string?string:string.replace(/./,(function(w){return w.toUpperCase()}))};function mergeOptions$3(){for(var result={},_len=arguments.length,sources=new Array(_len),_key=0;_key<_len;_key++)sources[_key]=arguments[_key];return sources.forEach((function(source){source&&each(source,(function(value,key){isPlain(value)?(isPlain(result[key])||(result[key]={}),result[key]=mergeOptions$3(result[key],value)):result[key]=value}))})),result}var MapSham=function(){function MapSham(){this.map_={}}var _proto=MapSham.prototype;return _proto.has=function(key){return key in this.map_},_proto.delete=function(key){var has=this.has(key);return delete this.map_[key],has},_proto.set=function(key,value){return this.map_[key]=value,this},_proto.forEach=function(callback,thisArg){for(var key in this.map_)callback.call(thisArg,this.map_[key],key,this)},MapSham}(),Map$1=window.Map?window.Map:MapSham,SetSham=function(){function SetSham(){this.set_={}}var _proto=SetSham.prototype;return _proto.has=function(key){return key in this.set_},_proto.delete=function(key){var has=this.has(key);return delete this.set_[key],has},_proto.add=function(key){return this.set_[key]=1,this},_proto.forEach=function(callback,thisArg){for(var key in this.set_)callback.call(thisArg,key,key,this)},SetSham}(),Set$1=window.Set?window.Set:SetSham,keycode=createCommonjsModule((function(module,exports){function keyCode(searchInput){if(searchInput&&"object"==typeof searchInput){var hasKeyCode=searchInput.which||searchInput.keyCode||searchInput.charCode;hasKeyCode&&(searchInput=hasKeyCode)}if("number"==typeof searchInput)return names[searchInput];var foundNamedKey,search=String(searchInput);return(foundNamedKey=codes[search.toLowerCase()])?foundNamedKey:(foundNamedKey=aliases[search.toLowerCase()])||(1===search.length?search.charCodeAt(0):void 0)}keyCode.isEventKey=function(event,nameOrCode){if(event&&"object"==typeof event){var keyCode=event.which||event.keyCode||event.charCode;if(null==keyCode)return!1;if("string"==typeof nameOrCode){var foundNamedKey;if(foundNamedKey=codes[nameOrCode.toLowerCase()])return foundNamedKey===keyCode;if(foundNamedKey=aliases[nameOrCode.toLowerCase()])return foundNamedKey===keyCode}else if("number"==typeof nameOrCode)return nameOrCode===keyCode;return!1}};var codes=(exports=module.exports=keyCode).code=exports.codes={backspace:8,tab:9,enter:13,shift:16,ctrl:17,alt:18,"pause/break":19,"caps lock":20,esc:27,space:32,"page up":33,"page down":34,end:35,home:36,left:37,up:38,right:39,down:40,insert:45,delete:46,command:91,"left command":91,"right command":93,"numpad *":106,"numpad +":107,"numpad -":109,"numpad .":110,"numpad /":111,"num lock":144,"scroll lock":145,"my computer":182,"my calculator":183,";":186,"=":187,",":188,"-":189,".":190,"/":191,"`":192,"[":219,"\\":220,"]":221,"'":222},aliases=exports.aliases={windows:91,"⇧":16,"⌥":18,"⌃":17,"⌘":91,ctl:17,control:17,option:18,pause:19,break:19,caps:20,return:13,escape:27,spc:32,spacebar:32,pgup:33,pgdn:34,ins:45,del:46,cmd:91};for(i=97;i<123;i++)codes[String.fromCharCode(i)]=i-32;for(var i=48;i<58;i++)codes[i-48]=i;for(i=1;i<13;i++)codes["f"+i]=i+111;for(i=0;i<10;i++)codes["numpad "+i]=i+96;var names=exports.names=exports.title={};for(i in codes)names[codes[i]]=i;for(var alias in aliases)codes[alias]=aliases[alias]}));keycode.code,keycode.codes,keycode.aliases,keycode.names,keycode.title;var Component$1=function(){function Component(player,options,ready){var _this=this;if(!player&&this.play?this.player_=player=this:this.player_=player,this.isDisposed_=!1,this.parentComponent_=null,this.options_=mergeOptions$3({},this.options_),options=this.options_=mergeOptions$3(this.options_,options),this.id_=options.id||options.el&&options.el.id,!this.id_){var id=player&&player.id&&player.id()||"no_player";this.id_=id+"_component_"+newGUID()}this.name_=options.name||null,options.el?this.el_=options.el:!1!==options.createEl&&(this.el_=this.createEl()),options.className&&this.el_&&options.className.split(" ").forEach((function(c){return _this.addClass(c)})),!1!==options.evented&&(evented(this,{eventBusKey:this.el_?"el_":null}),this.handleLanguagechange=this.handleLanguagechange.bind(this),this.on(this.player_,"languagechange",this.handleLanguagechange)),stateful(this,this.constructor.defaultState),this.children_=[],this.childIndex_={},this.childNameIndex_={},this.setTimeoutIds_=new Set$1,this.setIntervalIds_=new Set$1,this.rafIds_=new Set$1,this.namedRafs_=new Map$1,this.clearingTimersOnDispose_=!1,!1!==options.initChildren&&this.initChildren(),this.ready(ready),!1!==options.reportTouchActivity&&this.enableTouchActivity()}var _proto=Component.prototype;return _proto.dispose=function(options){if(void 0===options&&(options={}),!this.isDisposed_){if(this.readyQueue_&&(this.readyQueue_.length=0),this.trigger({type:"dispose",bubbles:!1}),this.isDisposed_=!0,this.children_)for(var i=this.children_.length-1;i>=0;i--)this.children_[i].dispose&&this.children_[i].dispose();this.children_=null,this.childIndex_=null,this.childNameIndex_=null,this.parentComponent_=null,this.el_&&(this.el_.parentNode&&(options.restoreEl?this.el_.parentNode.replaceChild(options.restoreEl,this.el_):this.el_.parentNode.removeChild(this.el_)),this.el_=null),this.player_=null}},_proto.isDisposed=function(){return Boolean(this.isDisposed_)},_proto.player=function(){return this.player_},_proto.options=function(obj){return obj?(this.options_=mergeOptions$3(this.options_,obj),this.options_):this.options_},_proto.el=function(){return this.el_},_proto.createEl=function(tagName,properties,attributes){return createEl(tagName,properties,attributes)},_proto.localize=function(string,tokens,defaultValue){void 0===defaultValue&&(defaultValue=string);var code=this.player_.language&&this.player_.language(),languages=this.player_.languages&&this.player_.languages(),language=languages&&languages[code],primaryCode=code&&code.split("-")[0],primaryLang=languages&&languages[primaryCode],localizedString=defaultValue;return language&&language[string]?localizedString=language[string]:primaryLang&&primaryLang[string]&&(localizedString=primaryLang[string]),tokens&&(localizedString=localizedString.replace(/\{(\d+)\}/g,(function(match,index){var value=tokens[index-1],ret=value;return void 0===value&&(ret=match),ret}))),localizedString},_proto.handleLanguagechange=function(){},_proto.contentEl=function(){return this.contentEl_||this.el_},_proto.id=function(){return this.id_},_proto.name=function(){return this.name_},_proto.children=function(){return this.children_},_proto.getChildById=function(id){return this.childIndex_[id]},_proto.getChild=function(name){if(name)return this.childNameIndex_[name]},_proto.getDescendant=function(){for(var _len=arguments.length,names=new Array(_len),_key=0;_key<_len;_key++)names[_key]=arguments[_key];names=names.reduce((function(acc,n){return acc.concat(n)}),[]);for(var currentChild=this,i=0;i<names.length;i++)if(!(currentChild=currentChild.getChild(names[i]))||!currentChild.getChild)return;return currentChild},_proto.addChild=function(child,options,index){var component,componentName;if(void 0===options&&(options={}),void 0===index&&(index=this.children_.length),"string"==typeof child){componentName=toTitleCase$1(child);var componentClassName=options.componentClass||componentName;options.name=componentName;var ComponentClass=Component.getComponent(componentClassName);if(!ComponentClass)throw new Error("Component "+componentClassName+" does not exist");if("function"!=typeof ComponentClass)return null;component=new ComponentClass(this.player_||this,options)}else component=child;if(component.parentComponent_&&component.parentComponent_.removeChild(component),this.children_.splice(index,0,component),component.parentComponent_=this,"function"==typeof component.id&&(this.childIndex_[component.id()]=component),(componentName=componentName||component.name&&toTitleCase$1(component.name()))&&(this.childNameIndex_[componentName]=component,this.childNameIndex_[toLowerCase(componentName)]=component),"function"==typeof component.el&&component.el()){var refNode=null;this.children_[index+1]&&(this.children_[index+1].el_?refNode=this.children_[index+1].el_:isEl(this.children_[index+1])&&(refNode=this.children_[index+1])),this.contentEl().insertBefore(component.el(),refNode)}return component},_proto.removeChild=function(component){if("string"==typeof component&&(component=this.getChild(component)),component&&this.children_){for(var childFound=!1,i=this.children_.length-1;i>=0;i--)if(this.children_[i]===component){childFound=!0,this.children_.splice(i,1);break}if(childFound){component.parentComponent_=null,this.childIndex_[component.id()]=null,this.childNameIndex_[toTitleCase$1(component.name())]=null,this.childNameIndex_[toLowerCase(component.name())]=null;var compEl=component.el();compEl&&compEl.parentNode===this.contentEl()&&this.contentEl().removeChild(component.el())}}},_proto.initChildren=function(){var _this2=this,children=this.options_.children;if(children){var workingChildren,parentOptions=this.options_,Tech=Component.getComponent("Tech");(workingChildren=Array.isArray(children)?children:Object.keys(children)).concat(Object.keys(this.options_).filter((function(child){return!workingChildren.some((function(wchild){return"string"==typeof wchild?child===wchild:child===wchild.name}))}))).map((function(child){var name,opts;return"string"==typeof child?opts=children[name=child]||_this2.options_[name]||{}:(name=child.name,opts=child),{name:name,opts:opts}})).filter((function(child){var c=Component.getComponent(child.opts.componentClass||toTitleCase$1(child.name));return c&&!Tech.isTech(c)})).forEach((function(child){var name=child.name,opts=child.opts;if(void 0!==parentOptions[name]&&(opts=parentOptions[name]),!1!==opts){!0===opts&&(opts={}),opts.playerOptions=_this2.options_.playerOptions;var newChild=_this2.addChild(name,opts);newChild&&(_this2[name]=newChild)}}))}},_proto.buildCSSClass=function(){return""},_proto.ready=function(fn,sync){if(void 0===sync&&(sync=!1),fn)return this.isReady_?void(sync?fn.call(this):this.setTimeout(fn,1)):(this.readyQueue_=this.readyQueue_||[],void this.readyQueue_.push(fn))},_proto.triggerReady=function(){this.isReady_=!0,this.setTimeout((function(){var readyQueue=this.readyQueue_;this.readyQueue_=[],readyQueue&&readyQueue.length>0&&readyQueue.forEach((function(fn){fn.call(this)}),this),this.trigger("ready")}),1)},_proto.$=function(selector,context){return $(selector,context||this.contentEl())},_proto.$$=function(selector,context){return $$(selector,context||this.contentEl())},_proto.hasClass=function(classToCheck){return hasClass(this.el_,classToCheck)},_proto.addClass=function(classToAdd){addClass(this.el_,classToAdd)},_proto.removeClass=function(classToRemove){removeClass(this.el_,classToRemove)},_proto.toggleClass=function(classToToggle,predicate){toggleClass(this.el_,classToToggle,predicate)},_proto.show=function(){this.removeClass("vjs-hidden")},_proto.hide=function(){this.addClass("vjs-hidden")},_proto.lockShowing=function(){this.addClass("vjs-lock-showing")},_proto.unlockShowing=function(){this.removeClass("vjs-lock-showing")},_proto.getAttribute=function(attribute){return getAttribute(this.el_,attribute)},_proto.setAttribute=function(attribute,value){setAttribute(this.el_,attribute,value)},_proto.removeAttribute=function(attribute){removeAttribute(this.el_,attribute)},_proto.width=function(num,skipListeners){return this.dimension("width",num,skipListeners)},_proto.height=function(num,skipListeners){return this.dimension("height",num,skipListeners)},_proto.dimensions=function(width,height){this.width(width,!0),this.height(height)},_proto.dimension=function(widthOrHeight,num,skipListeners){if(void 0!==num)return null!==num&&num==num||(num=0),-1!==(""+num).indexOf("%")||-1!==(""+num).indexOf("px")?this.el_.style[widthOrHeight]=num:this.el_.style[widthOrHeight]="auto"===num?"":num+"px",void(skipListeners||this.trigger("componentresize"));if(!this.el_)return 0;var val=this.el_.style[widthOrHeight],pxIndex=val.indexOf("px");return-1!==pxIndex?parseInt(val.slice(0,pxIndex),10):parseInt(this.el_["offset"+toTitleCase$1(widthOrHeight)],10)},_proto.currentDimension=function(widthOrHeight){var computedWidthOrHeight=0;if("width"!==widthOrHeight&&"height"!==widthOrHeight)throw new Error("currentDimension only accepts width or height value");if(computedWidthOrHeight=computedStyle(this.el_,widthOrHeight),0===(computedWidthOrHeight=parseFloat(computedWidthOrHeight))||isNaN(computedWidthOrHeight)){var rule="offset"+toTitleCase$1(widthOrHeight);computedWidthOrHeight=this.el_[rule]}return computedWidthOrHeight},_proto.currentDimensions=function(){return{width:this.currentDimension("width"),height:this.currentDimension("height")}},_proto.currentWidth=function(){return this.currentDimension("width")},_proto.currentHeight=function(){return this.currentDimension("height")},_proto.focus=function(){this.el_.focus()},_proto.blur=function(){this.el_.blur()},_proto.handleKeyDown=function(event){this.player_&&(keycode.isEventKey(event,"Tab")||event.stopPropagation(),this.player_.handleKeyDown(event))},_proto.handleKeyPress=function(event){this.handleKeyDown(event)},_proto.emitTapEvents=function(){var couldBeTap,touchStart=0,firstTouch=null;this.on("touchstart",(function(event){1===event.touches.length&&(firstTouch={pageX:event.touches[0].pageX,pageY:event.touches[0].pageY},touchStart=window.performance.now(),couldBeTap=!0)})),this.on("touchmove",(function(event){if(event.touches.length>1)couldBeTap=!1;else if(firstTouch){var xdiff=event.touches[0].pageX-firstTouch.pageX,ydiff=event.touches[0].pageY-firstTouch.pageY;Math.sqrt(xdiff*xdiff+ydiff*ydiff)>10&&(couldBeTap=!1)}}));var noTap=function(){couldBeTap=!1};this.on("touchleave",noTap),this.on("touchcancel",noTap),this.on("touchend",(function(event){(firstTouch=null,!0===couldBeTap)&&(window.performance.now()-touchStart<200&&(event.preventDefault(),this.trigger("tap")))}))},_proto.enableTouchActivity=function(){if(this.player()&&this.player().reportUserActivity){var touchHolding,report=bind(this.player(),this.player().reportUserActivity);this.on("touchstart",(function(){report(),this.clearInterval(touchHolding),touchHolding=this.setInterval(report,250)}));var touchEnd=function(event){report(),this.clearInterval(touchHolding)};this.on("touchmove",report),this.on("touchend",touchEnd),this.on("touchcancel",touchEnd)}},_proto.setTimeout=function(fn,timeout){var timeoutId,_this3=this;return fn=bind(this,fn),this.clearTimersOnDispose_(),timeoutId=window.setTimeout((function(){_this3.setTimeoutIds_.has(timeoutId)&&_this3.setTimeoutIds_.delete(timeoutId),fn()}),timeout),this.setTimeoutIds_.add(timeoutId),timeoutId},_proto.clearTimeout=function(timeoutId){return this.setTimeoutIds_.has(timeoutId)&&(this.setTimeoutIds_.delete(timeoutId),window.clearTimeout(timeoutId)),timeoutId},_proto.setInterval=function(fn,interval){fn=bind(this,fn),this.clearTimersOnDispose_();var intervalId=window.setInterval(fn,interval);return this.setIntervalIds_.add(intervalId),intervalId},_proto.clearInterval=function(intervalId){return this.setIntervalIds_.has(intervalId)&&(this.setIntervalIds_.delete(intervalId),window.clearInterval(intervalId)),intervalId},_proto.requestAnimationFrame=function(fn){var id,_this4=this;return this.supportsRaf_?(this.clearTimersOnDispose_(),fn=bind(this,fn),id=window.requestAnimationFrame((function(){_this4.rafIds_.has(id)&&_this4.rafIds_.delete(id),fn()})),this.rafIds_.add(id),id):this.setTimeout(fn,1e3/60)},_proto.requestNamedAnimationFrame=function(name,fn){var _this5=this;if(!this.namedRafs_.has(name)){this.clearTimersOnDispose_(),fn=bind(this,fn);var id=this.requestAnimationFrame((function(){fn(),_this5.namedRafs_.has(name)&&_this5.namedRafs_.delete(name)}));return this.namedRafs_.set(name,id),name}},_proto.cancelNamedAnimationFrame=function(name){this.namedRafs_.has(name)&&(this.cancelAnimationFrame(this.namedRafs_.get(name)),this.namedRafs_.delete(name))},_proto.cancelAnimationFrame=function(id){return this.supportsRaf_?(this.rafIds_.has(id)&&(this.rafIds_.delete(id),window.cancelAnimationFrame(id)),id):this.clearTimeout(id)},_proto.clearTimersOnDispose_=function(){var _this6=this;this.clearingTimersOnDispose_||(this.clearingTimersOnDispose_=!0,this.one("dispose",(function(){[["namedRafs_","cancelNamedAnimationFrame"],["rafIds_","cancelAnimationFrame"],["setTimeoutIds_","clearTimeout"],["setIntervalIds_","clearInterval"]].forEach((function(_ref){var idName=_ref[0],cancelName=_ref[1];_this6[idName].forEach((function(val,key){return _this6[cancelName](key)}))})),_this6.clearingTimersOnDispose_=!1})))},Component.registerComponent=function(name,ComponentToRegister){if("string"!=typeof name||!name)throw new Error('Illegal component name, "'+name+'"; must be a non-empty string.');var reason,Tech=Component.getComponent("Tech"),isTech=Tech&&Tech.isTech(ComponentToRegister),isComp=Component===ComponentToRegister||Component.prototype.isPrototypeOf(ComponentToRegister.prototype);if(isTech||!isComp)throw reason=isTech?"techs must be registered using Tech.registerTech()":"must be a Component subclass",new Error('Illegal component, "'+name+'"; '+reason+".");name=toTitleCase$1(name),Component.components_||(Component.components_={});var Player=Component.getComponent("Player");if("Player"===name&&Player&&Player.players){var players=Player.players,playerNames=Object.keys(players);if(players&&playerNames.length>0&&playerNames.map((function(pname){return players[pname]})).every(Boolean))throw new Error("Can not register Player component after player has been created.")}return Component.components_[name]=ComponentToRegister,Component.components_[toLowerCase(name)]=ComponentToRegister,ComponentToRegister},Component.getComponent=function(name){if(name&&Component.components_)return Component.components_[name]},Component}();Component$1.prototype.supportsRaf_="function"==typeof window.requestAnimationFrame&&"function"==typeof window.cancelAnimationFrame,Component$1.registerComponent("Component",Component$1);var assertThisInitialized=function(self){if(void 0===self)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return self};var inheritsLoose=function(subClass,superClass){subClass.prototype=Object.create(superClass.prototype),subClass.prototype.constructor=subClass,subClass.__proto__=superClass};function getRange(fnName,valueIndex,ranges,rangeIndex){return function(fnName,index,maxIndex){if("number"!=typeof index||index<0||index>maxIndex)throw new Error("Failed to execute '"+fnName+"' on 'TimeRanges': The index provided ("+index+") is non-numeric or out of bounds (0-"+maxIndex+").")}(fnName,rangeIndex,ranges.length-1),ranges[rangeIndex][valueIndex]}function createTimeRangesObj(ranges){var timeRangesObj;return timeRangesObj=void 0===ranges||0===ranges.length?{length:0,start:function(){throw new Error("This TimeRanges object is empty")},end:function(){throw new Error("This TimeRanges object is empty")}}:{length:ranges.length,start:getRange.bind(null,"start",0,ranges),end:getRange.bind(null,"end",1,ranges)},window.Symbol&&window.Symbol.iterator&&(timeRangesObj[window.Symbol.iterator]=function(){return(ranges||[]).values()}),timeRangesObj}function createTimeRanges(start,end){return Array.isArray(start)?createTimeRangesObj(start):void 0===start||void 0===end?createTimeRangesObj():createTimeRangesObj([[start,end]])}function bufferedPercent(buffered,duration){var start,end,bufferedDuration=0;if(!duration)return 0;buffered&&buffered.length||(buffered=createTimeRanges(0,0));for(var i=0;i<buffered.length;i++)start=buffered.start(i),(end=buffered.end(i))>duration&&(end=duration),bufferedDuration+=end-start;return bufferedDuration/duration}function MediaError(value){if(value instanceof MediaError)return value;"number"==typeof value?this.code=value:"string"==typeof value?this.message=value:isObject$1(value)&&("number"==typeof value.code&&(this.code=value.code),assign(this,value)),this.message||(this.message=MediaError.defaultMessages[this.code]||"")}MediaError.prototype.code=0,MediaError.prototype.message="",MediaError.prototype.status=null,MediaError.errorTypes=["MEDIA_ERR_CUSTOM","MEDIA_ERR_ABORTED","MEDIA_ERR_NETWORK","MEDIA_ERR_DECODE","MEDIA_ERR_SRC_NOT_SUPPORTED","MEDIA_ERR_ENCRYPTED"],MediaError.defaultMessages={1:"You aborted the media playback",2:"A network error caused the media download to fail part-way.",3:"The media playback was aborted due to a corruption problem or because the media used features your browser did not support.",4:"The media could not be loaded, either because the server or network failed or because the format is not supported.",5:"The media is encrypted and we do not have the keys to decrypt it."};for(var errNum=0;errNum<MediaError.errorTypes.length;errNum++)MediaError[MediaError.errorTypes[errNum]]=errNum,MediaError.prototype[MediaError.errorTypes[errNum]]=errNum;var tuple=function(obj,reviver){var json,error=null;try{json=JSON.parse(obj,reviver)}catch(err){error=err}return[error,json]};function isPromise(value){return null!=value&&"function"==typeof value.then}function silencePromise(value){isPromise(value)&&value.then(null,(function(e){}))}var trackToJson_=function(track){return["kind","label","language","id","inBandMetadataTrackDispatchType","mode","src"].reduce((function(acc,prop,i){return track[prop]&&(acc[prop]=track[prop]),acc}),{cues:track.cues&&Array.prototype.map.call(track.cues,(function(cue){return{startTime:cue.startTime,endTime:cue.endTime,text:cue.text,id:cue.id}}))})},textTrackConverter_textTracksToJson=function(tech){var trackEls=tech.$$("track"),trackObjs=Array.prototype.map.call(trackEls,(function(t){return t.track}));return Array.prototype.map.call(trackEls,(function(trackEl){var json=trackToJson_(trackEl.track);return trackEl.src&&(json.src=trackEl.src),json})).concat(Array.prototype.filter.call(tech.textTracks(),(function(track){return-1===trackObjs.indexOf(track)})).map(trackToJson_))},textTrackConverter_jsonToTextTracks=function(json,tech){return json.forEach((function(track){var addedTrack=tech.addRemoteTextTrack(track).track;!track.src&&track.cues&&track.cues.forEach((function(cue){return addedTrack.addCue(cue)}))})),tech.textTracks()},ModalDialog=function(_Component){function ModalDialog(player,options){var _this;return(_this=_Component.call(this,player,options)||this).handleKeyDown_=function(e){return _this.handleKeyDown(e)},_this.close_=function(e){return _this.close(e)},_this.opened_=_this.hasBeenOpened_=_this.hasBeenFilled_=!1,_this.closeable(!_this.options_.uncloseable),_this.content(_this.options_.content),_this.contentEl_=createEl("div",{className:"vjs-modal-dialog-content"},{role:"document"}),_this.descEl_=createEl("p",{className:"vjs-modal-dialog-description vjs-control-text",id:_this.el().getAttribute("aria-describedby")}),textContent(_this.descEl_,_this.description()),_this.el_.appendChild(_this.descEl_),_this.el_.appendChild(_this.contentEl_),_this}inheritsLoose(ModalDialog,_Component);var _proto=ModalDialog.prototype;return _proto.createEl=function(){return _Component.prototype.createEl.call(this,"div",{className:this.buildCSSClass(),tabIndex:-1},{"aria-describedby":this.id()+"_description","aria-hidden":"true","aria-label":this.label(),role:"dialog"})},_proto.dispose=function(){this.contentEl_=null,this.descEl_=null,this.previouslyActiveEl_=null,_Component.prototype.dispose.call(this)},_proto.buildCSSClass=function(){return"vjs-modal-dialog vjs-hidden "+_Component.prototype.buildCSSClass.call(this)},_proto.label=function(){return this.localize(this.options_.label||"Modal Window")},_proto.description=function(){var desc=this.options_.description||this.localize("This is a modal window.");return this.closeable()&&(desc+=" "+this.localize("This modal can be closed by pressing the Escape key or activating the close button.")),desc},_proto.open=function(){if(!this.opened_){var player=this.player();this.trigger("beforemodalopen"),this.opened_=!0,(this.options_.fillAlways||!this.hasBeenOpened_&&!this.hasBeenFilled_)&&this.fill(),this.wasPlaying_=!player.paused(),this.options_.pauseOnOpen&&this.wasPlaying_&&player.pause(),this.on("keydown",this.handleKeyDown_),this.hadControls_=player.controls(),player.controls(!1),this.show(),this.conditionalFocus_(),this.el().setAttribute("aria-hidden","false"),this.trigger("modalopen"),this.hasBeenOpened_=!0}},_proto.opened=function(value){return"boolean"==typeof value&&this[value?"open":"close"](),this.opened_},_proto.close=function(){if(this.opened_){var player=this.player();this.trigger("beforemodalclose"),this.opened_=!1,this.wasPlaying_&&this.options_.pauseOnOpen&&player.play(),this.off("keydown",this.handleKeyDown_),this.hadControls_&&player.controls(!0),this.hide(),this.el().setAttribute("aria-hidden","true"),this.trigger("modalclose"),this.conditionalBlur_(),this.options_.temporary&&this.dispose()}},_proto.closeable=function(value){if("boolean"==typeof value){var closeable=this.closeable_=!!value,close=this.getChild("closeButton");if(closeable&&!close){var temp=this.contentEl_;this.contentEl_=this.el_,close=this.addChild("closeButton",{controlText:"Close Modal Dialog"}),this.contentEl_=temp,this.on(close,"close",this.close_)}!closeable&&close&&(this.off(close,"close",this.close_),this.removeChild(close),close.dispose())}return this.closeable_},_proto.fill=function(){this.fillWith(this.content())},_proto.fillWith=function(content){var contentEl=this.contentEl(),parentEl=contentEl.parentNode,nextSiblingEl=contentEl.nextSibling;this.trigger("beforemodalfill"),this.hasBeenFilled_=!0,parentEl.removeChild(contentEl),this.empty(),insertContent(contentEl,content),this.trigger("modalfill"),nextSiblingEl?parentEl.insertBefore(contentEl,nextSiblingEl):parentEl.appendChild(contentEl);var closeButton=this.getChild("closeButton");closeButton&&parentEl.appendChild(closeButton.el_)},_proto.empty=function(){this.trigger("beforemodalempty"),emptyEl(this.contentEl()),this.trigger("modalempty")},_proto.content=function(value){return void 0!==value&&(this.content_=value),this.content_},_proto.conditionalFocus_=function(){var activeEl=document.activeElement,playerEl=this.player_.el_;this.previouslyActiveEl_=null,(playerEl.contains(activeEl)||playerEl===activeEl)&&(this.previouslyActiveEl_=activeEl,this.focus())},_proto.conditionalBlur_=function(){this.previouslyActiveEl_&&(this.previouslyActiveEl_.focus(),this.previouslyActiveEl_=null)},_proto.handleKeyDown=function(event){if(event.stopPropagation(),keycode.isEventKey(event,"Escape")&&this.closeable())return event.preventDefault(),void this.close();if(keycode.isEventKey(event,"Tab")){for(var focusIndex,focusableEls=this.focusableEls_(),activeEl=this.el_.querySelector(":focus"),i=0;i<focusableEls.length;i++)if(activeEl===focusableEls[i]){focusIndex=i;break}document.activeElement===this.el_&&(focusIndex=0),event.shiftKey&&0===focusIndex?(focusableEls[focusableEls.length-1].focus(),event.preventDefault()):event.shiftKey||focusIndex!==focusableEls.length-1||(focusableEls[0].focus(),event.preventDefault())}},_proto.focusableEls_=function(){var allChildren=this.el_.querySelectorAll("*");return Array.prototype.filter.call(allChildren,(function(child){return(child instanceof window.HTMLAnchorElement||child instanceof window.HTMLAreaElement)&&child.hasAttribute("href")||(child instanceof window.HTMLInputElement||child instanceof window.HTMLSelectElement||child instanceof window.HTMLTextAreaElement||child instanceof window.HTMLButtonElement)&&!child.hasAttribute("disabled")||child instanceof window.HTMLIFrameElement||child instanceof window.HTMLObjectElement||child instanceof window.HTMLEmbedElement||child.hasAttribute("tabindex")&&-1!==child.getAttribute("tabindex")||child.hasAttribute("contenteditable")}))},ModalDialog}(Component$1);ModalDialog.prototype.options_={pauseOnOpen:!0,temporary:!0},Component$1.registerComponent("ModalDialog",ModalDialog);var TrackList=function(_EventTarget){function TrackList(tracks){var _this;void 0===tracks&&(tracks=[]),(_this=_EventTarget.call(this)||this).tracks_=[],Object.defineProperty(assertThisInitialized(_this),"length",{get:function(){return this.tracks_.length}});for(var i=0;i<tracks.length;i++)_this.addTrack(tracks[i]);return _this}inheritsLoose(TrackList,_EventTarget);var _proto=TrackList.prototype;return _proto.addTrack=function(track){var _this2=this,index=this.tracks_.length;""+index in this||Object.defineProperty(this,index,{get:function(){return this.tracks_[index]}}),-1===this.tracks_.indexOf(track)&&(this.tracks_.push(track),this.trigger({track:track,type:"addtrack",target:this})),track.labelchange_=function(){_this2.trigger({track:track,type:"labelchange",target:_this2})},isEvented(track)&&track.addEventListener("labelchange",track.labelchange_)},_proto.removeTrack=function(rtrack){for(var track,i=0,l=this.length;i<l;i++)if(this[i]===rtrack){(track=this[i]).off&&track.off(),this.tracks_.splice(i,1);break}track&&this.trigger({track:track,type:"removetrack",target:this})},_proto.getTrackById=function(id){for(var result=null,i=0,l=this.length;i<l;i++){var track=this[i];if(track.id===id){result=track;break}}return result},TrackList}(EventTarget$2);for(var event in TrackList.prototype.allowedEvents_={change:"change",addtrack:"addtrack",removetrack:"removetrack",labelchange:"labelchange"},TrackList.prototype.allowedEvents_)TrackList.prototype["on"+event]=null;var disableOthers$1=function(list,track){for(var i=0;i<list.length;i++)Object.keys(list[i]).length&&track.id!==list[i].id&&(list[i].enabled=!1)},AudioTrackList=function(_TrackList){function AudioTrackList(tracks){var _this;void 0===tracks&&(tracks=[]);for(var i=tracks.length-1;i>=0;i--)if(tracks[i].enabled){disableOthers$1(tracks,tracks[i]);break}return(_this=_TrackList.call(this,tracks)||this).changing_=!1,_this}inheritsLoose(AudioTrackList,_TrackList);var _proto=AudioTrackList.prototype;return _proto.addTrack=function(track){var _this2=this;track.enabled&&disableOthers$1(this,track),_TrackList.prototype.addTrack.call(this,track),track.addEventListener&&(track.enabledChange_=function(){_this2.changing_||(_this2.changing_=!0,disableOthers$1(_this2,track),_this2.changing_=!1,_this2.trigger("change"))},track.addEventListener("enabledchange",track.enabledChange_))},_proto.removeTrack=function(rtrack){_TrackList.prototype.removeTrack.call(this,rtrack),rtrack.removeEventListener&&rtrack.enabledChange_&&(rtrack.removeEventListener("enabledchange",rtrack.enabledChange_),rtrack.enabledChange_=null)},AudioTrackList}(TrackList),disableOthers=function(list,track){for(var i=0;i<list.length;i++)Object.keys(list[i]).length&&track.id!==list[i].id&&(list[i].selected=!1)},VideoTrackList=function(_TrackList){function VideoTrackList(tracks){var _this;void 0===tracks&&(tracks=[]);for(var i=tracks.length-1;i>=0;i--)if(tracks[i].selected){disableOthers(tracks,tracks[i]);break}return(_this=_TrackList.call(this,tracks)||this).changing_=!1,Object.defineProperty(assertThisInitialized(_this),"selectedIndex",{get:function(){for(var _i=0;_i<this.length;_i++)if(this[_i].selected)return _i;return-1},set:function(){}}),_this}inheritsLoose(VideoTrackList,_TrackList);var _proto=VideoTrackList.prototype;return _proto.addTrack=function(track){var _this2=this;track.selected&&disableOthers(this,track),_TrackList.prototype.addTrack.call(this,track),track.addEventListener&&(track.selectedChange_=function(){_this2.changing_||(_this2.changing_=!0,disableOthers(_this2,track),_this2.changing_=!1,_this2.trigger("change"))},track.addEventListener("selectedchange",track.selectedChange_))},_proto.removeTrack=function(rtrack){_TrackList.prototype.removeTrack.call(this,rtrack),rtrack.removeEventListener&&rtrack.selectedChange_&&(rtrack.removeEventListener("selectedchange",rtrack.selectedChange_),rtrack.selectedChange_=null)},VideoTrackList}(TrackList),TextTrackList=function(_TrackList){function TextTrackList(){return _TrackList.apply(this,arguments)||this}inheritsLoose(TextTrackList,_TrackList);var _proto=TextTrackList.prototype;return _proto.addTrack=function(track){var _this=this;_TrackList.prototype.addTrack.call(this,track),this.queueChange_||(this.queueChange_=function(){return _this.queueTrigger("change")}),this.triggerSelectedlanguagechange||(this.triggerSelectedlanguagechange_=function(){return _this.trigger("selectedlanguagechange")}),track.addEventListener("modechange",this.queueChange_);-1===["metadata","chapters"].indexOf(track.kind)&&track.addEventListener("modechange",this.triggerSelectedlanguagechange_)},_proto.removeTrack=function(rtrack){_TrackList.prototype.removeTrack.call(this,rtrack),rtrack.removeEventListener&&(this.queueChange_&&rtrack.removeEventListener("modechange",this.queueChange_),this.selectedlanguagechange_&&rtrack.removeEventListener("modechange",this.triggerSelectedlanguagechange_))},TextTrackList}(TrackList),HtmlTrackElementList=function(){function HtmlTrackElementList(trackElements){void 0===trackElements&&(trackElements=[]),this.trackElements_=[],Object.defineProperty(this,"length",{get:function(){return this.trackElements_.length}});for(var i=0,length=trackElements.length;i<length;i++)this.addTrackElement_(trackElements[i])}var _proto=HtmlTrackElementList.prototype;return _proto.addTrackElement_=function(trackElement){var index=this.trackElements_.length;""+index in this||Object.defineProperty(this,index,{get:function(){return this.trackElements_[index]}}),-1===this.trackElements_.indexOf(trackElement)&&this.trackElements_.push(trackElement)},_proto.getTrackElementByTrack_=function(track){for(var trackElement_,i=0,length=this.trackElements_.length;i<length;i++)if(track===this.trackElements_[i].track){trackElement_=this.trackElements_[i];break}return trackElement_},_proto.removeTrackElement_=function(trackElement){for(var i=0,length=this.trackElements_.length;i<length;i++)if(trackElement===this.trackElements_[i]){this.trackElements_[i].track&&"function"==typeof this.trackElements_[i].track.off&&this.trackElements_[i].track.off(),"function"==typeof this.trackElements_[i].off&&this.trackElements_[i].off(),this.trackElements_.splice(i,1);break}},HtmlTrackElementList}(),TextTrackCueList=function(){function TextTrackCueList(cues){TextTrackCueList.prototype.setCues_.call(this,cues),Object.defineProperty(this,"length",{get:function(){return this.length_}})}var _proto=TextTrackCueList.prototype;return _proto.setCues_=function(cues){var oldLength=this.length||0,i=0,l=cues.length;this.cues_=cues,this.length_=cues.length;var defineProp=function(index){""+index in this||Object.defineProperty(this,""+index,{get:function(){return this.cues_[index]}})};if(oldLength<l)for(i=oldLength;i<l;i++)defineProp.call(this,i)},_proto.getCueById=function(id){for(var result=null,i=0,l=this.length;i<l;i++){var cue=this[i];if(cue.id===id){result=cue;break}}return result},TextTrackCueList}(),VideoTrackKind={alternative:"alternative",captions:"captions",main:"main",sign:"sign",subtitles:"subtitles",commentary:"commentary"},AudioTrackKind={alternative:"alternative",descriptions:"descriptions",main:"main","main-desc":"main-desc",translation:"translation",commentary:"commentary"},TextTrackKind={subtitles:"subtitles",captions:"captions",descriptions:"descriptions",chapters:"chapters",metadata:"metadata"},TextTrackMode={disabled:"disabled",hidden:"hidden",showing:"showing"},Track=function(_EventTarget){function Track(options){var _this;void 0===options&&(options={}),_this=_EventTarget.call(this)||this;var trackProps={id:options.id||"vjs_track_"+newGUID(),kind:options.kind||"",language:options.language||""},label=options.label||"",_loop=function(key){Object.defineProperty(assertThisInitialized(_this),key,{get:function(){return trackProps[key]},set:function(){}})};for(var key in trackProps)_loop(key);return Object.defineProperty(assertThisInitialized(_this),"label",{get:function(){return label},set:function(newLabel){newLabel!==label&&(label=newLabel,this.trigger("labelchange"))}}),_this}return inheritsLoose(Track,_EventTarget),Track}(EventTarget$2),parseUrl=function(url){var props=["protocol","hostname","port","pathname","search","hash","host"],a=document.createElement("a");a.href=url;for(var details={},i=0;i<props.length;i++)details[props[i]]=a[props[i]];return"http:"===details.protocol&&(details.host=details.host.replace(/:80$/,"")),"https:"===details.protocol&&(details.host=details.host.replace(/:443$/,"")),details.protocol||(details.protocol=window.location.protocol),details.host||(details.host=window.location.host),details},getAbsoluteURL=function(url){if(!url.match(/^https?:\/\//)){var a=document.createElement("a");a.href=url,url=a.href}return url},getFileExtension=function(path){if("string"==typeof path){var pathParts=/^(\/?)([\s\S]*?)((?:\.{1,2}|[^\/]+?)(\.([^\.\/\?]+)))(?:[\/]*|[\?].*)$/.exec(path);if(pathParts)return pathParts.pop().toLowerCase()}return""},isCrossOrigin=function(url,winLoc){void 0===winLoc&&(winLoc=window.location);var urlInfo=parseUrl(url);return(":"===urlInfo.protocol?winLoc.protocol:urlInfo.protocol)+urlInfo.host!==winLoc.protocol+winLoc.host},Url=Object.freeze({__proto__:null,parseUrl:parseUrl,getAbsoluteURL:getAbsoluteURL,getFileExtension:getFileExtension,isCrossOrigin:isCrossOrigin}),window_1="undefined"!=typeof window?window:void 0!==commonjsGlobal?commonjsGlobal:"undefined"!=typeof self?self:{},isFunction_1=function(fn){if(!fn)return!1;var string=toString.call(fn);return"[object Function]"===string||"function"==typeof fn&&"[object RegExp]"!==string||"undefined"!=typeof window&&(fn===window.setTimeout||fn===window.alert||fn===window.confirm||fn===window.prompt)},toString=Object.prototype.toString;var httpHandler=function(callback,decodeResponseBody){return void 0===decodeResponseBody&&(decodeResponseBody=!1),function(err,response,responseBody){if(err)callback(err);else if(response.statusCode>=400&&response.statusCode<=599){var cause=responseBody;if(decodeResponseBody)if(window_1.TextDecoder){var charset=function(contentTypeHeader){void 0===contentTypeHeader&&(contentTypeHeader="");return contentTypeHeader.toLowerCase().split(";").reduce((function(charset,contentType){var _contentType$split=contentType.split("="),type=_contentType$split[0],value=_contentType$split[1];return"charset"===type.trim()?value.trim():charset}),"utf-8")}(response.headers&&response.headers["content-type"]);try{cause=new TextDecoder(charset).decode(responseBody)}catch(e){}}else cause=String.fromCharCode.apply(null,new Uint8Array(responseBody));callback({cause:cause})}else callback(null,responseBody)}};createXHR.httpHandler=httpHandler;
+!function(global,factory){"object"==typeof exports&&"undefined"!=typeof module?module.exports=factory():"function"==typeof define&&define.amd?define("media_videojs/video-lazy",factory):(global="undefined"!=typeof globalThis?globalThis:global||self).videojs=factory()}(window,(function(){const hooks_={},hooks=function(type,fn){return hooks_[type]=hooks_[type]||[],fn&&(hooks_[type]=hooks_[type].concat(fn)),hooks_[type]},removeHook=function(type,fn){const 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event.target[event.type]&&event.target[event.type](),targetData.disabled=!1)}return!event.defaultPrevented}function one(elem,type,fn){if(Array.isArray(type))return _handleMultipleEvents(one,elem,type,fn);const func=function(){off(elem,type,func),fn.apply(this,arguments)};func.guid=fn.guid=fn.guid||newGUID(),on(elem,type,func)}function any(elem,type,fn){const func=function(){off(elem,type,func),fn.apply(this,arguments)};func.guid=fn.guid=fn.guid||newGUID(),on(elem,type,func)}var Events=Object.freeze({__proto__:null,fixEvent:fixEvent,on:on,off:off,trigger:trigger,one:one,any:any});const bind_=function(context,fn,uid){fn.guid||(fn.guid=newGUID());const bound=fn.bind(context);return bound.guid=uid?uid+"_"+fn.guid:fn.guid,bound},throttle=function(fn,wait){let last=window.performance.now();return function(){const now=window.performance.now();now-last>=wait&&(fn(...arguments),last=now)}},debounce=function(func,wait,immediate){let timeout,context=arguments.length>3&&void 0!==arguments[3]?arguments[3]:window;const cancel=()=>{context.clearTimeout(timeout),timeout=null},debounced=function(){const self=this,args=arguments;let later=function(){timeout=null,later=null,immediate||func.apply(self,args)};!timeout&&immediate&&func.apply(self,args),context.clearTimeout(timeout),timeout=context.setTimeout(later,wait)};return debounced.cancel=cancel,debounced};var Fn=Object.freeze({__proto__:null,UPDATE_REFRESH_INTERVAL:30,bind_:bind_,throttle:throttle,debounce:debounce});let EVENT_MAP;class EventTarget$2{on(type,fn){const ael=this.addEventListener;this.addEventListener=()=>{},on(this,type,fn),this.addEventListener=ael}off(type,fn){off(this,type,fn)}one(type,fn){const ael=this.addEventListener;this.addEventListener=()=>{},one(this,type,fn),this.addEventListener=ael}any(type,fn){const ael=this.addEventListener;this.addEventListener=()=>{},any(this,type,fn),this.addEventListener=ael}trigger(event){const type=event.type||event;"string"==typeof event&&(event={type:type}),event=fixEvent(event),this.allowedEvents_[type]&&this["on"+type]&&this["on"+type](event),trigger(this,event)}queueTrigger(event){EVENT_MAP||(EVENT_MAP=new Map);const type=event.type||event;let map=EVENT_MAP.get(this);map||(map=new Map,EVENT_MAP.set(this,map));const oldTimeout=map.get(type);map.delete(type),window.clearTimeout(oldTimeout);const timeout=window.setTimeout((()=>{map.delete(type),0===map.size&&(map=null,EVENT_MAP.delete(this)),this.trigger(event)}),0);map.set(type,timeout)}}EventTarget$2.prototype.allowedEvents_={},EventTarget$2.prototype.addEventListener=EventTarget$2.prototype.on,EventTarget$2.prototype.removeEventListener=EventTarget$2.prototype.off,EventTarget$2.prototype.dispatchEvent=EventTarget$2.prototype.trigger;const objName=obj=>"function"==typeof obj.name?obj.name():"string"==typeof obj.name?obj.name:obj.name_?obj.name_:obj.constructor&&obj.constructor.name?obj.constructor.name:typeof obj,isEvented=object=>object instanceof EventTarget$2||!!object.eventBusEl_&&["on","one","off","trigger"].every((k=>"function"==typeof object[k])),isValidEventType=type=>"string"==typeof type&&/\S/.test(type)||Array.isArray(type)&&!!type.length,validateTarget=(target,obj,fnName)=>{if(!target||!target.nodeName&&!isEvented(target))throw new Error("Invalid target for ".concat(objName(obj),"#").concat(fnName,"; must be a DOM node or evented object."))},validateEventType=(type,obj,fnName)=>{if(!isValidEventType(type))throw new Error("Invalid event type for ".concat(objName(obj),"#").concat(fnName,"; must be a non-empty string or array."))},validateListener=(listener,obj,fnName)=>{if("function"!=typeof listener)throw new Error("Invalid listener for ".concat(objName(obj),"#").concat(fnName,"; must be a function."))},normalizeListenArgs=(self,args,fnName)=>{const isTargetingSelf=args.length<3||args[0]===self||args[0]===self.eventBusEl_;let target,type,listener;return isTargetingSelf?(target=self.eventBusEl_,args.length>=3&&args.shift(),[type,listener]=args):[target,type,listener]=args,validateTarget(target,self,fnName),validateEventType(type,self,fnName),validateListener(listener,self,fnName),listener=bind_(self,listener),{isTargetingSelf:isTargetingSelf,target:target,type:type,listener:listener}},listen=(target,method,type,listener)=>{validateTarget(target,target,method),target.nodeName?Events[method](target,type,listener):target[method](type,listener)},EventedMixin={on(){for(var _len9=arguments.length,args=new Array(_len9),_key9=0;_key9<_len9;_key9++)args[_key9]=arguments[_key9];const{isTargetingSelf:isTargetingSelf,target:target,type:type,listener:listener}=normalizeListenArgs(this,args,"on");if(listen(target,"on",type,listener),!isTargetingSelf){const removeListenerOnDispose=()=>this.off(target,type,listener);removeListenerOnDispose.guid=listener.guid;const removeRemoverOnTargetDispose=()=>this.off("dispose",removeListenerOnDispose);removeRemoverOnTargetDispose.guid=listener.guid,listen(this,"on","dispose",removeListenerOnDispose),listen(target,"on","dispose",removeRemoverOnTargetDispose)}},one(){for(var _this=this,_len10=arguments.length,args=new Array(_len10),_key10=0;_key10<_len10;_key10++)args[_key10]=arguments[_key10];const{isTargetingSelf:isTargetingSelf,target:target,type:type,listener:listener}=normalizeListenArgs(this,args,"one");if(isTargetingSelf)listen(target,"one",type,listener);else{const wrapper=function(){_this.off(target,type,wrapper);for(var _len11=arguments.length,largs=new Array(_len11),_key11=0;_key11<_len11;_key11++)largs[_key11]=arguments[_key11];listener.apply(null,largs)};wrapper.guid=listener.guid,listen(target,"one",type,wrapper)}},any(){for(var _this2=this,_len12=arguments.length,args=new Array(_len12),_key12=0;_key12<_len12;_key12++)args[_key12]=arguments[_key12];const{isTargetingSelf:isTargetingSelf,target:target,type:type,listener:listener}=normalizeListenArgs(this,args,"any");if(isTargetingSelf)listen(target,"any",type,listener);else{const wrapper=function(){_this2.off(target,type,wrapper);for(var _len13=arguments.length,largs=new Array(_len13),_key13=0;_key13<_len13;_key13++)largs[_key13]=arguments[_key13];listener.apply(null,largs)};wrapper.guid=listener.guid,listen(target,"any",type,wrapper)}},off(targetOrType,typeOrListener,listener){if(!targetOrType||isValidEventType(targetOrType))off(this.eventBusEl_,targetOrType,typeOrListener);else{const target=targetOrType,type=typeOrListener;validateTarget(target,this,"off"),validateEventType(type,this,"off"),validateListener(listener,this,"off"),listener=bind_(this,listener),this.off("dispose",listener),target.nodeName?(off(target,type,listener),off(target,"dispose",listener)):isEvented(target)&&(target.off(type,listener),target.off("dispose",listener))}},trigger(event,hash){validateTarget(this.eventBusEl_,this,"trigger");const type=event&&"string"!=typeof event?event.type:event;if(!isValidEventType(type))throw new Error("Invalid event type for ".concat(objName(this),"#trigger; ")+"must be a non-empty string or object with a type key that has a non-empty value.");return trigger(this.eventBusEl_,event,hash)}};function evented(target){let options=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};const{eventBusKey:eventBusKey}=options;if(eventBusKey){if(!target[eventBusKey].nodeName)throw new Error('The eventBusKey "'.concat(eventBusKey,'" does not refer to an element.'));target.eventBusEl_=target[eventBusKey]}else target.eventBusEl_=createEl("span",{className:"vjs-event-bus"});return Object.assign(target,EventedMixin),target.eventedCallbacks&&target.eventedCallbacks.forEach((callback=>{callback()})),target.on("dispose",(()=>{target.off(),[target,target.el_,target.eventBusEl_].forEach((function(val){val&&DomData.has(val)&&DomData.delete(val)})),window.setTimeout((()=>{target.eventBusEl_=null}),0)})),target}const StatefulMixin={state:{},setState(stateUpdates){let changes;return"function"==typeof stateUpdates&&(stateUpdates=stateUpdates()),each(stateUpdates,((value,key)=>{this.state[key]!==value&&(changes=changes||{},changes[key]={from:this.state[key],to:value}),this.state[key]=value})),changes&&isEvented(this)&&this.trigger({changes:changes,type:"statechanged"}),changes}};function stateful(target,defaultState){return Object.assign(target,StatefulMixin),target.state=Object.assign({},target.state,defaultState),"function"==typeof target.handleStateChanged&&isEvented(target)&&target.on("statechanged",target.handleStateChanged),target}const toLowerCase=function(string){return"string"!=typeof string?string:string.replace(/./,(w=>w.toLowerCase()))},toTitleCase$1=function(string){return"string"!=typeof string?string:string.replace(/./,(w=>w.toUpperCase()))},titleCaseEquals=function(str1,str2){return toTitleCase$1(str1)===toTitleCase$1(str2)};var Str=Object.freeze({__proto__:null,toLowerCase:toLowerCase,toTitleCase:toTitleCase$1,titleCaseEquals:titleCaseEquals}),commonjsGlobal="undefined"!=typeof globalThis?globalThis:"undefined"!=typeof window?window:"undefined"!=typeof global?global:"undefined"!=typeof self?self:{};function createCommonjsModule(fn,module){return fn(module={exports:{}},module.exports),module.exports}var keycode=createCommonjsModule((function(module,exports){function keyCode(searchInput){if(searchInput&&"object"==typeof searchInput){var hasKeyCode=searchInput.which||searchInput.keyCode||searchInput.charCode;hasKeyCode&&(searchInput=hasKeyCode)}if("number"==typeof searchInput)return names[searchInput];var foundNamedKey,search=String(searchInput);return(foundNamedKey=codes[search.toLowerCase()])?foundNamedKey:(foundNamedKey=aliases[search.toLowerCase()])||(1===search.length?search.charCodeAt(0):void 0)}keyCode.isEventKey=function(event,nameOrCode){if(event&&"object"==typeof event){var keyCode=event.which||event.keyCode||event.charCode;if(null==keyCode)return!1;if("string"==typeof nameOrCode){var foundNamedKey;if(foundNamedKey=codes[nameOrCode.toLowerCase()])return foundNamedKey===keyCode;if(foundNamedKey=aliases[nameOrCode.toLowerCase()])return foundNamedKey===keyCode}else if("number"==typeof nameOrCode)return nameOrCode===keyCode;return!1}};var codes=(exports=module.exports=keyCode).code=exports.codes={backspace:8,tab:9,enter:13,shift:16,ctrl:17,alt:18,"pause/break":19,"caps lock":20,esc:27,space:32,"page up":33,"page down":34,end:35,home:36,left:37,up:38,right:39,down:40,insert:45,delete:46,command:91,"left command":91,"right command":93,"numpad *":106,"numpad +":107,"numpad -":109,"numpad .":110,"numpad /":111,"num lock":144,"scroll lock":145,"my computer":182,"my calculator":183,";":186,"=":187,",":188,"-":189,".":190,"/":191,"`":192,"[":219,"\\":220,"]":221,"'":222},aliases=exports.aliases={windows:91,"⇧":16,"⌥":18,"⌃":17,"⌘":91,ctl:17,control:17,option:18,pause:19,break:19,caps:20,return:13,escape:27,spc:32,spacebar:32,pgup:33,pgdn:34,ins:45,del:46,cmd:91};for(i=97;i<123;i++)codes[String.fromCharCode(i)]=i-32;for(var i=48;i<58;i++)codes[i-48]=i;for(i=1;i<13;i++)codes["f"+i]=i+111;for(i=0;i<10;i++)codes["numpad "+i]=i+96;var names=exports.names=exports.title={};for(i in codes)names[codes[i]]=i;for(var alias in aliases)codes[alias]=aliases[alias]}));keycode.code,keycode.codes,keycode.aliases,keycode.names,keycode.title;class Component$1{constructor(player,options,ready){if(!player&&this.play?this.player_=player=this:this.player_=player,this.isDisposed_=!1,this.parentComponent_=null,this.options_=merge$2({},this.options_),options=this.options_=merge$2(this.options_,options),this.id_=options.id||options.el&&options.el.id,!this.id_){const id=player&&player.id&&player.id()||"no_player";this.id_="".concat(id,"_component_").concat(newGUID())}this.name_=options.name||null,options.el?this.el_=options.el:!1!==options.createEl&&(this.el_=this.createEl()),options.className&&this.el_&&options.className.split(" ").forEach((c=>this.addClass(c))),["on","off","one","any","trigger"].forEach((fn=>{this[fn]=void 0})),!1!==options.evented&&(evented(this,{eventBusKey:this.el_?"el_":null}),this.handleLanguagechange=this.handleLanguagechange.bind(this),this.on(this.player_,"languagechange",this.handleLanguagechange)),stateful(this,this.constructor.defaultState),this.children_=[],this.childIndex_={},this.childNameIndex_={},this.setTimeoutIds_=new Set,this.setIntervalIds_=new Set,this.rafIds_=new Set,this.namedRafs_=new Map,this.clearingTimersOnDispose_=!1,!1!==options.initChildren&&this.initChildren(),this.ready(ready),!1!==options.reportTouchActivity&&this.enableTouchActivity()}on(type,fn){}off(type,fn){}one(type,fn){}any(type,fn){}trigger(event){}dispose(){let options=arguments.length>0&&void 0!==arguments[0]?arguments[0]:{};if(!this.isDisposed_){if(this.readyQueue_&&(this.readyQueue_.length=0),this.trigger({type:"dispose",bubbles:!1}),this.isDisposed_=!0,this.children_)for(let i=this.children_.length-1;i>=0;i--)this.children_[i].dispose&&this.children_[i].dispose();this.children_=null,this.childIndex_=null,this.childNameIndex_=null,this.parentComponent_=null,this.el_&&(this.el_.parentNode&&(options.restoreEl?this.el_.parentNode.replaceChild(options.restoreEl,this.el_):this.el_.parentNode.removeChild(this.el_)),this.el_=null),this.player_=null}}isDisposed(){return Boolean(this.isDisposed_)}player(){return this.player_}options(obj){return obj?(this.options_=merge$2(this.options_,obj),this.options_):this.options_}el(){return this.el_}createEl(tagName,properties,attributes){return createEl(tagName,properties,attributes)}localize(string,tokens){let defaultValue=arguments.length>2&&void 0!==arguments[2]?arguments[2]:string;const code=this.player_.language&&this.player_.language(),languages=this.player_.languages&&this.player_.languages(),language=languages&&languages[code],primaryCode=code&&code.split("-")[0],primaryLang=languages&&languages[primaryCode];let localizedString=defaultValue;return language&&language[string]?localizedString=language[string]:primaryLang&&primaryLang[string]&&(localizedString=primaryLang[string]),tokens&&(localizedString=localizedString.replace(/\{(\d+)\}/g,(function(match,index){const value=tokens[index-1];let ret=value;return void 0===value&&(ret=match),ret}))),localizedString}handleLanguagechange(){}contentEl(){return this.contentEl_||this.el_}id(){return this.id_}name(){return this.name_}children(){return this.children_}getChildById(id){return this.childIndex_[id]}getChild(name){if(name)return this.childNameIndex_[name]}getDescendant(){for(var _len14=arguments.length,names=new Array(_len14),_key14=0;_key14<_len14;_key14++)names[_key14]=arguments[_key14];names=names.reduce(((acc,n)=>acc.concat(n)),[]);let currentChild=this;for(let i=0;i<names.length;i++)if(currentChild=currentChild.getChild(names[i]),!currentChild||!currentChild.getChild)return;return currentChild}addChild(child){let component,componentName,options=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{},index=arguments.length>2&&void 0!==arguments[2]?arguments[2]:this.children_.length;if("string"==typeof child){componentName=toTitleCase$1(child);const componentClassName=options.componentClass||componentName;options.name=componentName;const ComponentClass=Component$1.getComponent(componentClassName);if(!ComponentClass)throw new Error("Component ".concat(componentClassName," does not exist"));if("function"!=typeof ComponentClass)return null;component=new ComponentClass(this.player_||this,options)}else component=child;if(component.parentComponent_&&component.parentComponent_.removeChild(component),this.children_.splice(index,0,component),component.parentComponent_=this,"function"==typeof component.id&&(this.childIndex_[component.id()]=component),componentName=componentName||component.name&&toTitleCase$1(component.name()),componentName&&(this.childNameIndex_[componentName]=component,this.childNameIndex_[toLowerCase(componentName)]=component),"function"==typeof component.el&&component.el()){let refNode=null;this.children_[index+1]&&(this.children_[index+1].el_?refNode=this.children_[index+1].el_:isEl(this.children_[index+1])&&(refNode=this.children_[index+1])),this.contentEl().insertBefore(component.el(),refNode)}return component}removeChild(component){if("string"==typeof component&&(component=this.getChild(component)),!component||!this.children_)return;let childFound=!1;for(let i=this.children_.length-1;i>=0;i--)if(this.children_[i]===component){childFound=!0,this.children_.splice(i,1);break}if(!childFound)return;component.parentComponent_=null,this.childIndex_[component.id()]=null,this.childNameIndex_[toTitleCase$1(component.name())]=null,this.childNameIndex_[toLowerCase(component.name())]=null;const compEl=component.el();compEl&&compEl.parentNode===this.contentEl()&&this.contentEl().removeChild(component.el())}initChildren(){const children=this.options_.children;if(children){const parentOptions=this.options_,handleAdd=child=>{const name=child.name;let opts=child.opts;if(void 0!==parentOptions[name]&&(opts=parentOptions[name]),!1===opts)return;!0===opts&&(opts={}),opts.playerOptions=this.options_.playerOptions;const newChild=this.addChild(name,opts);newChild&&(this[name]=newChild)};let workingChildren;const Tech=Component$1.getComponent("Tech");workingChildren=Array.isArray(children)?children:Object.keys(children),workingChildren.concat(Object.keys(this.options_).filter((function(child){return!workingChildren.some((function(wchild){return"string"==typeof wchild?child===wchild:child===wchild.name}))}))).map((child=>{let name,opts;return"string"==typeof child?(name=child,opts=children[name]||this.options_[name]||{}):(name=child.name,opts=child),{name:name,opts:opts}})).filter((child=>{const c=Component$1.getComponent(child.opts.componentClass||toTitleCase$1(child.name));return c&&!Tech.isTech(c)})).forEach(handleAdd)}}buildCSSClass(){return""}ready(fn){let sync=arguments.length>1&&void 0!==arguments[1]&&arguments[1];if(fn)return this.isReady_?void(sync?fn.call(this):this.setTimeout(fn,1)):(this.readyQueue_=this.readyQueue_||[],void this.readyQueue_.push(fn))}triggerReady(){this.isReady_=!0,this.setTimeout((function(){const readyQueue=this.readyQueue_;this.readyQueue_=[],readyQueue&&readyQueue.length>0&&readyQueue.forEach((function(fn){fn.call(this)}),this),this.trigger("ready")}),1)}$(selector,context){return $(selector,context||this.contentEl())}$$(selector,context){return $$(selector,context||this.contentEl())}hasClass(classToCheck){return hasClass(this.el_,classToCheck)}addClass(){for(var _len15=arguments.length,classesToAdd=new Array(_len15),_key15=0;_key15<_len15;_key15++)classesToAdd[_key15]=arguments[_key15];addClass(this.el_,...classesToAdd)}removeClass(){for(var _len16=arguments.length,classesToRemove=new Array(_len16),_key16=0;_key16<_len16;_key16++)classesToRemove[_key16]=arguments[_key16];removeClass(this.el_,...classesToRemove)}toggleClass(classToToggle,predicate){toggleClass(this.el_,classToToggle,predicate)}show(){this.removeClass("vjs-hidden")}hide(){this.addClass("vjs-hidden")}lockShowing(){this.addClass("vjs-lock-showing")}unlockShowing(){this.removeClass("vjs-lock-showing")}getAttribute(attribute){return getAttribute(this.el_,attribute)}setAttribute(attribute,value){setAttribute(this.el_,attribute,value)}removeAttribute(attribute){removeAttribute(this.el_,attribute)}width(num,skipListeners){return this.dimension("width",num,skipListeners)}height(num,skipListeners){return this.dimension("height",num,skipListeners)}dimensions(width,height){this.width(width,!0),this.height(height)}dimension(widthOrHeight,num,skipListeners){if(void 0!==num)return null!==num&&num==num||(num=0),-1!==(""+num).indexOf("%")||-1!==(""+num).indexOf("px")?this.el_.style[widthOrHeight]=num:this.el_.style[widthOrHeight]="auto"===num?"":num+"px",void(skipListeners||this.trigger("componentresize"));if(!this.el_)return 0;const val=this.el_.style[widthOrHeight],pxIndex=val.indexOf("px");return-1!==pxIndex?parseInt(val.slice(0,pxIndex),10):parseInt(this.el_["offset"+toTitleCase$1(widthOrHeight)],10)}currentDimension(widthOrHeight){let computedWidthOrHeight=0;if("width"!==widthOrHeight&&"height"!==widthOrHeight)throw new Error("currentDimension only accepts width or height value");if(computedWidthOrHeight=computedStyle(this.el_,widthOrHeight),computedWidthOrHeight=parseFloat(computedWidthOrHeight),0===computedWidthOrHeight||isNaN(computedWidthOrHeight)){const rule="offset".concat(toTitleCase$1(widthOrHeight));computedWidthOrHeight=this.el_[rule]}return computedWidthOrHeight}currentDimensions(){return{width:this.currentDimension("width"),height:this.currentDimension("height")}}currentWidth(){return this.currentDimension("width")}currentHeight(){return this.currentDimension("height")}focus(){this.el_.focus()}blur(){this.el_.blur()}handleKeyDown(event){this.player_&&(keycode.isEventKey(event,"Tab")||event.stopPropagation(),this.player_.handleKeyDown(event))}handleKeyPress(event){this.handleKeyDown(event)}emitTapEvents(){let touchStart=0,firstTouch=null;let couldBeTap;this.on("touchstart",(function(event){1===event.touches.length&&(firstTouch={pageX:event.touches[0].pageX,pageY:event.touches[0].pageY},touchStart=window.performance.now(),couldBeTap=!0)})),this.on("touchmove",(function(event){if(event.touches.length>1)couldBeTap=!1;else if(firstTouch){const xdiff=event.touches[0].pageX-firstTouch.pageX,ydiff=event.touches[0].pageY-firstTouch.pageY;Math.sqrt(xdiff*xdiff+ydiff*ydiff)>10&&(couldBeTap=!1)}}));const noTap=function(){couldBeTap=!1};this.on("touchleave",noTap),this.on("touchcancel",noTap),this.on("touchend",(function(event){if(firstTouch=null,!0===couldBeTap){window.performance.now()-touchStart<200&&(event.preventDefault(),this.trigger("tap"))}}))}enableTouchActivity(){if(!this.player()||!this.player().reportUserActivity)return;const report=bind_(this.player(),this.player().reportUserActivity);let touchHolding;this.on("touchstart",(function(){report(),this.clearInterval(touchHolding),touchHolding=this.setInterval(report,250)}));const touchEnd=function(event){report(),this.clearInterval(touchHolding)};this.on("touchmove",report),this.on("touchend",touchEnd),this.on("touchcancel",touchEnd)}setTimeout(fn,timeout){var timeoutId;return fn=bind_(this,fn),this.clearTimersOnDispose_(),timeoutId=window.setTimeout((()=>{this.setTimeoutIds_.has(timeoutId)&&this.setTimeoutIds_.delete(timeoutId),fn()}),timeout),this.setTimeoutIds_.add(timeoutId),timeoutId}clearTimeout(timeoutId){return this.setTimeoutIds_.has(timeoutId)&&(this.setTimeoutIds_.delete(timeoutId),window.clearTimeout(timeoutId)),timeoutId}setInterval(fn,interval){fn=bind_(this,fn),this.clearTimersOnDispose_();const intervalId=window.setInterval(fn,interval);return this.setIntervalIds_.add(intervalId),intervalId}clearInterval(intervalId){return this.setIntervalIds_.has(intervalId)&&(this.setIntervalIds_.delete(intervalId),window.clearInterval(intervalId)),intervalId}requestAnimationFrame(fn){var id;return this.clearTimersOnDispose_(),fn=bind_(this,fn),id=window.requestAnimationFrame((()=>{this.rafIds_.has(id)&&this.rafIds_.delete(id),fn()})),this.rafIds_.add(id),id}requestNamedAnimationFrame(name,fn){if(this.namedRafs_.has(name))return;this.clearTimersOnDispose_(),fn=bind_(this,fn);const id=this.requestAnimationFrame((()=>{fn(),this.namedRafs_.has(name)&&this.namedRafs_.delete(name)}));return this.namedRafs_.set(name,id),name}cancelNamedAnimationFrame(name){this.namedRafs_.has(name)&&(this.cancelAnimationFrame(this.namedRafs_.get(name)),this.namedRafs_.delete(name))}cancelAnimationFrame(id){return this.rafIds_.has(id)&&(this.rafIds_.delete(id),window.cancelAnimationFrame(id)),id}clearTimersOnDispose_(){this.clearingTimersOnDispose_||(this.clearingTimersOnDispose_=!0,this.one("dispose",(()=>{[["namedRafs_","cancelNamedAnimationFrame"],["rafIds_","cancelAnimationFrame"],["setTimeoutIds_","clearTimeout"],["setIntervalIds_","clearInterval"]].forEach((_ref4=>{let[idName,cancelName]=_ref4;this[idName].forEach(((val,key)=>this[cancelName](key)))})),this.clearingTimersOnDispose_=!1})))}static registerComponent(name,ComponentToRegister){if("string"!=typeof name||!name)throw new Error('Illegal component name, "'.concat(name,'"; must be a non-empty string.'));const Tech=Component$1.getComponent("Tech"),isTech=Tech&&Tech.isTech(ComponentToRegister),isComp=Component$1===ComponentToRegister||Component$1.prototype.isPrototypeOf(ComponentToRegister.prototype);if(isTech||!isComp){let reason;throw reason=isTech?"techs must be registered using Tech.registerTech()":"must be a Component subclass",new Error('Illegal component, "'.concat(name,'"; ').concat(reason,"."))}name=toTitleCase$1(name),Component$1.components_||(Component$1.components_={});const Player=Component$1.getComponent("Player");if("Player"===name&&Player&&Player.players){const players=Player.players,playerNames=Object.keys(players);if(players&&playerNames.length>0&&playerNames.map((pname=>players[pname])).every(Boolean))throw new Error("Can not register Player component after player has been created.")}return Component$1.components_[name]=ComponentToRegister,Component$1.components_[toLowerCase(name)]=ComponentToRegister,ComponentToRegister}static getComponent(name){if(name&&Component$1.components_)return Component$1.components_[name]}}function getRange(fnName,valueIndex,ranges,rangeIndex){return function(fnName,index,maxIndex){if("number"!=typeof index||index<0||index>maxIndex)throw new Error("Failed to execute '".concat(fnName,"' on 'TimeRanges': The index provided (").concat(index,") is non-numeric or out of bounds (0-").concat(maxIndex,")."))}(fnName,rangeIndex,ranges.length-1),ranges[rangeIndex][valueIndex]}function createTimeRangesObj(ranges){let timeRangesObj;return timeRangesObj=void 0===ranges||0===ranges.length?{length:0,start(){throw new Error("This TimeRanges object is empty")},end(){throw new Error("This TimeRanges object is empty")}}:{length:ranges.length,start:getRange.bind(null,"start",0,ranges),end:getRange.bind(null,"end",1,ranges)},window.Symbol&&window.Symbol.iterator&&(timeRangesObj[window.Symbol.iterator]=()=>(ranges||[]).values()),timeRangesObj}function createTimeRanges$1(start,end){return Array.isArray(start)?createTimeRangesObj(start):void 0===start||void 0===end?createTimeRangesObj():createTimeRangesObj([[start,end]])}Component$1.registerComponent("Component",Component$1);const defaultImplementation=function(seconds,guide){seconds=seconds<0?0:seconds;let s=Math.floor(seconds%60),m=Math.floor(seconds/60%60),h=Math.floor(seconds/3600);const gm=Math.floor(guide/60%60),gh=Math.floor(guide/3600);return(isNaN(seconds)||seconds===1/0)&&(h=m=s="-"),h=h>0||gh>0?h+":":"",m=((h||gm>=10)&&m<10?"0"+m:m)+":",s=s<10?"0"+s:s,h+m+s};let implementation=defaultImplementation;function setFormatTime(customImplementation){implementation=customImplementation}function resetFormatTime(){implementation=defaultImplementation}function formatTime(seconds){let guide=arguments.length>1&&void 0!==arguments[1]?arguments[1]:seconds;return implementation(seconds,guide)}var Time=Object.freeze({__proto__:null,createTimeRanges:createTimeRanges$1,createTimeRange:createTimeRanges$1,setFormatTime:setFormatTime,resetFormatTime:resetFormatTime,formatTime:formatTime});function bufferedPercent(buffered,duration){let start,end,bufferedDuration=0;if(!duration)return 0;buffered&&buffered.length||(buffered=createTimeRanges$1(0,0));for(let i=0;i<buffered.length;i++)start=buffered.start(i),end=buffered.end(i),end>duration&&(end=duration),bufferedDuration+=end-start;return bufferedDuration/duration}function MediaError(value){if(value instanceof MediaError)return value;"number"==typeof value?this.code=value:"string"==typeof value?this.message=value:isObject$1(value)&&("number"==typeof value.code&&(this.code=value.code),Object.assign(this,value)),this.message||(this.message=MediaError.defaultMessages[this.code]||"")}MediaError.prototype.code=0,MediaError.prototype.message="",MediaError.prototype.status=null,MediaError.errorTypes=["MEDIA_ERR_CUSTOM","MEDIA_ERR_ABORTED","MEDIA_ERR_NETWORK","MEDIA_ERR_DECODE","MEDIA_ERR_SRC_NOT_SUPPORTED","MEDIA_ERR_ENCRYPTED"],MediaError.defaultMessages={1:"You aborted the media playback",2:"A network error caused the media download to fail part-way.",3:"The media playback was aborted due to a corruption problem or because the media used features your browser did not support.",4:"The media could not be loaded, either because the server or network failed or because the format is not supported.",5:"The media is encrypted and we do not have the keys to decrypt it."};for(let errNum=0;errNum<MediaError.errorTypes.length;errNum++)MediaError[MediaError.errorTypes[errNum]]=errNum,MediaError.prototype[MediaError.errorTypes[errNum]]=errNum;var tuple=function(obj,reviver){var json,error=null;try{json=JSON.parse(obj,reviver)}catch(err){error=err}return[error,json]};function isPromise(value){return null!=value&&"function"==typeof value.then}function silencePromise(value){isPromise(value)&&value.then(null,(e=>{}))}const trackToJson_=function(track){return["kind","label","language","id","inBandMetadataTrackDispatchType","mode","src"].reduce(((acc,prop,i)=>(track[prop]&&(acc[prop]=track[prop]),acc)),{cues:track.cues&&Array.prototype.map.call(track.cues,(function(cue){return{startTime:cue.startTime,endTime:cue.endTime,text:cue.text,id:cue.id}}))})};var textTrackConverter_textTracksToJson=function(tech){const trackEls=tech.$$("track"),trackObjs=Array.prototype.map.call(trackEls,(t=>t.track));return Array.prototype.map.call(trackEls,(function(trackEl){const json=trackToJson_(trackEl.track);return trackEl.src&&(json.src=trackEl.src),json})).concat(Array.prototype.filter.call(tech.textTracks(),(function(track){return-1===trackObjs.indexOf(track)})).map(trackToJson_))},textTrackConverter_jsonToTextTracks=function(json,tech){return json.forEach((function(track){const addedTrack=tech.addRemoteTextTrack(track).track;!track.src&&track.cues&&track.cues.forEach((cue=>addedTrack.addCue(cue)))})),tech.textTracks()};class ModalDialog extends Component$1{constructor(player,options){super(player,options),this.handleKeyDown_=e=>this.handleKeyDown(e),this.close_=e=>this.close(e),this.opened_=this.hasBeenOpened_=this.hasBeenFilled_=!1,this.closeable(!this.options_.uncloseable),this.content(this.options_.content),this.contentEl_=createEl("div",{className:"".concat("vjs-modal-dialog","-content")},{role:"document"}),this.descEl_=createEl("p",{className:"".concat("vjs-modal-dialog","-description vjs-control-text"),id:this.el().getAttribute("aria-describedby")}),textContent(this.descEl_,this.description()),this.el_.appendChild(this.descEl_),this.el_.appendChild(this.contentEl_)}createEl(){return super.createEl("div",{className:this.buildCSSClass(),tabIndex:-1},{"aria-describedby":"".concat(this.id(),"_description"),"aria-hidden":"true","aria-label":this.label(),role:"dialog"})}dispose(){this.contentEl_=null,this.descEl_=null,this.previouslyActiveEl_=null,super.dispose()}buildCSSClass(){return"".concat("vjs-modal-dialog"," vjs-hidden ").concat(super.buildCSSClass())}label(){return this.localize(this.options_.label||"Modal Window")}description(){let desc=this.options_.description||this.localize("This is a modal window.");return this.closeable()&&(desc+=" "+this.localize("This modal can be closed by pressing the Escape key or activating the close button.")),desc}open(){if(!this.opened_){const player=this.player();this.trigger("beforemodalopen"),this.opened_=!0,(this.options_.fillAlways||!this.hasBeenOpened_&&!this.hasBeenFilled_)&&this.fill(),this.wasPlaying_=!player.paused(),this.options_.pauseOnOpen&&this.wasPlaying_&&player.pause(),this.on("keydown",this.handleKeyDown_),this.hadControls_=player.controls(),player.controls(!1),this.show(),this.conditionalFocus_(),this.el().setAttribute("aria-hidden","false"),this.trigger("modalopen"),this.hasBeenOpened_=!0}}opened(value){return"boolean"==typeof value&&this[value?"open":"close"](),this.opened_}close(){if(!this.opened_)return;const player=this.player();this.trigger("beforemodalclose"),this.opened_=!1,this.wasPlaying_&&this.options_.pauseOnOpen&&player.play(),this.off("keydown",this.handleKeyDown_),this.hadControls_&&player.controls(!0),this.hide(),this.el().setAttribute("aria-hidden","true"),this.trigger("modalclose"),this.conditionalBlur_(),this.options_.temporary&&this.dispose()}closeable(value){if("boolean"==typeof value){const closeable=this.closeable_=!!value;let close=this.getChild("closeButton");if(closeable&&!close){const temp=this.contentEl_;this.contentEl_=this.el_,close=this.addChild("closeButton",{controlText:"Close Modal Dialog"}),this.contentEl_=temp,this.on(close,"close",this.close_)}!closeable&&close&&(this.off(close,"close",this.close_),this.removeChild(close),close.dispose())}return this.closeable_}fill(){this.fillWith(this.content())}fillWith(content){const contentEl=this.contentEl(),parentEl=contentEl.parentNode,nextSiblingEl=contentEl.nextSibling;this.trigger("beforemodalfill"),this.hasBeenFilled_=!0,parentEl.removeChild(contentEl),this.empty(),insertContent(contentEl,content),this.trigger("modalfill"),nextSiblingEl?parentEl.insertBefore(contentEl,nextSiblingEl):parentEl.appendChild(contentEl);const closeButton=this.getChild("closeButton");closeButton&&parentEl.appendChild(closeButton.el_)}empty(){this.trigger("beforemodalempty"),emptyEl(this.contentEl()),this.trigger("modalempty")}content(value){return void 0!==value&&(this.content_=value),this.content_}conditionalFocus_(){const activeEl=document.activeElement,playerEl=this.player_.el_;this.previouslyActiveEl_=null,(playerEl.contains(activeEl)||playerEl===activeEl)&&(this.previouslyActiveEl_=activeEl,this.focus())}conditionalBlur_(){this.previouslyActiveEl_&&(this.previouslyActiveEl_.focus(),this.previouslyActiveEl_=null)}handleKeyDown(event){if(event.stopPropagation(),keycode.isEventKey(event,"Escape")&&this.closeable())return event.preventDefault(),void this.close();if(!keycode.isEventKey(event,"Tab"))return;const focusableEls=this.focusableEls_(),activeEl=this.el_.querySelector(":focus");let focusIndex;for(let i=0;i<focusableEls.length;i++)if(activeEl===focusableEls[i]){focusIndex=i;break}document.activeElement===this.el_&&(focusIndex=0),event.shiftKey&&0===focusIndex?(focusableEls[focusableEls.length-1].focus(),event.preventDefault()):event.shiftKey||focusIndex!==focusableEls.length-1||(focusableEls[0].focus(),event.preventDefault())}focusableEls_(){const allChildren=this.el_.querySelectorAll("*");return Array.prototype.filter.call(allChildren,(child=>(child instanceof window.HTMLAnchorElement||child instanceof window.HTMLAreaElement)&&child.hasAttribute("href")||(child instanceof window.HTMLInputElement||child instanceof window.HTMLSelectElement||child instanceof window.HTMLTextAreaElement||child instanceof window.HTMLButtonElement)&&!child.hasAttribute("disabled")||child instanceof window.HTMLIFrameElement||child instanceof window.HTMLObjectElement||child instanceof window.HTMLEmbedElement||child.hasAttribute("tabindex")&&-1!==child.getAttribute("tabindex")||child.hasAttribute("contenteditable")))}}ModalDialog.prototype.options_={pauseOnOpen:!0,temporary:!0},Component$1.registerComponent("ModalDialog",ModalDialog);class TrackList extends EventTarget$2{constructor(){let tracks=arguments.length>0&&void 0!==arguments[0]?arguments[0]:[];super(),this.tracks_=[],Object.defineProperty(this,"length",{get(){return this.tracks_.length}});for(let i=0;i<tracks.length;i++)this.addTrack(tracks[i])}addTrack(track){const index=this.tracks_.length;""+index in this||Object.defineProperty(this,index,{get(){return this.tracks_[index]}}),-1===this.tracks_.indexOf(track)&&(this.tracks_.push(track),this.trigger({track:track,type:"addtrack",target:this})),track.labelchange_=()=>{this.trigger({track:track,type:"labelchange",target:this})},isEvented(track)&&track.addEventListener("labelchange",track.labelchange_)}removeTrack(rtrack){let track;for(let i=0,l=this.length;i<l;i++)if(this[i]===rtrack){track=this[i],track.off&&track.off(),this.tracks_.splice(i,1);break}track&&this.trigger({track:track,type:"removetrack",target:this})}getTrackById(id){let result=null;for(let i=0,l=this.length;i<l;i++){const track=this[i];if(track.id===id){result=track;break}}return result}}TrackList.prototype.allowedEvents_={change:"change",addtrack:"addtrack",removetrack:"removetrack",labelchange:"labelchange"};for(const event in TrackList.prototype.allowedEvents_)TrackList.prototype["on"+event]=null;const disableOthers$1=function(list,track){for(let i=0;i<list.length;i++)Object.keys(list[i]).length&&track.id!==list[i].id&&(list[i].enabled=!1)};const disableOthers=function(list,track){for(let i=0;i<list.length;i++)Object.keys(list[i]).length&&track.id!==list[i].id&&(list[i].selected=!1)};class TextTrackList extends TrackList{addTrack(track){super.addTrack(track),this.queueChange_||(this.queueChange_=()=>this.queueTrigger("change")),this.triggerSelectedlanguagechange||(this.triggerSelectedlanguagechange_=()=>this.trigger("selectedlanguagechange")),track.addEventListener("modechange",this.queueChange_);-1===["metadata","chapters"].indexOf(track.kind)&&track.addEventListener("modechange",this.triggerSelectedlanguagechange_)}removeTrack(rtrack){super.removeTrack(rtrack),rtrack.removeEventListener&&(this.queueChange_&&rtrack.removeEventListener("modechange",this.queueChange_),this.selectedlanguagechange_&&rtrack.removeEventListener("modechange",this.triggerSelectedlanguagechange_))}}class TextTrackCueList{constructor(cues){TextTrackCueList.prototype.setCues_.call(this,cues),Object.defineProperty(this,"length",{get(){return this.length_}})}setCues_(cues){const oldLength=this.length||0;let i=0;const l=cues.length;this.cues_=cues,this.length_=cues.length;const defineProp=function(index){""+index in this||Object.defineProperty(this,""+index,{get(){return this.cues_[index]}})};if(oldLength<l)for(i=oldLength;i<l;i++)defineProp.call(this,i)}getCueById(id){let result=null;for(let i=0,l=this.length;i<l;i++){const cue=this[i];if(cue.id===id){result=cue;break}}return result}}const VideoTrackKind={alternative:"alternative",captions:"captions",main:"main",sign:"sign",subtitles:"subtitles",commentary:"commentary"},AudioTrackKind={alternative:"alternative",descriptions:"descriptions",main:"main","main-desc":"main-desc",translation:"translation",commentary:"commentary"},TextTrackKind={subtitles:"subtitles",captions:"captions",descriptions:"descriptions",chapters:"chapters",metadata:"metadata"},TextTrackMode={disabled:"disabled",hidden:"hidden",showing:"showing"};class Track extends EventTarget$2{constructor(){let options=arguments.length>0&&void 0!==arguments[0]?arguments[0]:{};super();const trackProps={id:options.id||"vjs_track_"+newGUID(),kind:options.kind||"",language:options.language||""};let label=options.label||"";for(const key in trackProps)Object.defineProperty(this,key,{get:()=>trackProps[key],set(){}});Object.defineProperty(this,"label",{get:()=>label,set(newLabel){newLabel!==label&&(label=newLabel,this.trigger("labelchange"))}})}}const parseUrl=function(url){const props=["protocol","hostname","port","pathname","search","hash","host"],a=document.createElement("a");a.href=url;const details={};for(let i=0;i<props.length;i++)details[props[i]]=a[props[i]];return"http:"===details.protocol&&(details.host=details.host.replace(/:80$/,"")),"https:"===details.protocol&&(details.host=details.host.replace(/:443$/,"")),details.protocol||(details.protocol=window.location.protocol),details.host||(details.host=window.location.host),details},getAbsoluteURL=function(url){if(!url.match(/^https?:\/\//)){const a=document.createElement("a");a.href=url,url=a.href}return url},getFileExtension=function(path){if("string"==typeof path){const pathParts=/^(\/?)([\s\S]*?)((?:\.{1,2}|[^\/]+?)(\.([^\.\/\?]+)))(?:[\/]*|[\?].*)$/.exec(path);if(pathParts)return pathParts.pop().toLowerCase()}return""},isCrossOrigin=function(url){let winLoc=arguments.length>1&&void 0!==arguments[1]?arguments[1]:window.location;const urlInfo=parseUrl(url),srcProtocol=":"===urlInfo.protocol?winLoc.protocol:urlInfo.protocol,crossOrigin=srcProtocol+urlInfo.host!==winLoc.protocol+winLoc.host;return crossOrigin};var x,Url=Object.freeze({__proto__:null,parseUrl:parseUrl,getAbsoluteURL:getAbsoluteURL,getFileExtension:getFileExtension,isCrossOrigin:isCrossOrigin}),window_1="undefined"!=typeof window?window:void 0!==commonjsGlobal?commonjsGlobal:"undefined"!=typeof self?self:{},_extends_1=createCommonjsModule((function(module){function _extends(){return module.exports=_extends=Object.assign?Object.assign.bind():function(target){for(var i=1;i<arguments.length;i++){var source=arguments[i];for(var key in source)Object.prototype.hasOwnProperty.call(source,key)&&(target[key]=source[key])}return target},module.exports.__esModule=!0,module.exports.default=module.exports,_extends.apply(this,arguments)}module.exports=_extends,module.exports.__esModule=!0,module.exports.default=module.exports})),_extends$1=(x=_extends_1)&&x.__esModule&&Object.prototype.hasOwnProperty.call(x,"default")?x.default:x,isFunction_1=function(fn){if(!fn)return!1;var string=toString.call(fn);return"[object Function]"===string||"function"==typeof fn&&"[object RegExp]"!==string||"undefined"!=typeof window&&(fn===window.setTimeout||fn===window.alert||fn===window.confirm||fn===window.prompt)},toString=Object.prototype.toString;var httpHandler=function(callback,decodeResponseBody){return void 0===decodeResponseBody&&(decodeResponseBody=!1),function(err,response,responseBody){if(err)callback(err);else if(response.statusCode>=400&&response.statusCode<=599){var cause=responseBody;if(decodeResponseBody)if(window_1.TextDecoder){var charset=function(contentTypeHeader){void 0===contentTypeHeader&&(contentTypeHeader="");return contentTypeHeader.toLowerCase().split(";").reduce((function(charset,contentType){var _contentType$split=contentType.split("="),type=_contentType$split[0],value=_contentType$split[1];return"charset"===type.trim()?value.trim():charset}),"utf-8")}(response.headers&&response.headers["content-type"]);try{cause=new TextDecoder(charset).decode(responseBody)}catch(e){}}else cause=String.fromCharCode.apply(null,new Uint8Array(responseBody));callback({cause:cause})}else callback(null,responseBody)}};createXHR.httpHandler=httpHandler;
 /**
    * @license
    * slighly modified parse-headers 2.0.2 <https://github.com/kesla/parse-headers/>
@@ -17,11 +17,15 @@
    * Available under the MIT license
    * <https://github.com/kesla/parse-headers/blob/master/LICENCE>
    */
-var lib=createXHR,default_1=createXHR;function initParams(uri,options,callback){var params=uri;return isFunction_1(options)?(callback=options,"string"==typeof uri&&(params={uri:uri})):params=_extends_1({},options,{uri:uri}),params.callback=callback,params}function createXHR(uri,options,callback){return _createXHR(options=initParams(uri,options,callback))}function _createXHR(options){if(void 0===options.callback)throw new Error("callback argument missing");var called=!1,callback=function(err,response,body){called||(called=!0,options.callback(err,response,body))};function getBody(){var body=void 0;if(body=xhr.response?xhr.response:xhr.responseText||function(xhr){try{if("document"===xhr.responseType)return xhr.responseXML;var firefoxBugTakenEffect=xhr.responseXML&&"parsererror"===xhr.responseXML.documentElement.nodeName;if(""===xhr.responseType&&!firefoxBugTakenEffect)return xhr.responseXML}catch(e){}return null}(xhr),isJson)try{body=JSON.parse(body)}catch(e){}return body}function errorFunc(evt){return clearTimeout(timeoutTimer),evt instanceof Error||(evt=new Error(""+(evt||"Unknown XMLHttpRequest Error"))),evt.statusCode=0,callback(evt,failureResponse)}function loadFunc(){if(!aborted){var status;clearTimeout(timeoutTimer),status=options.useXDR&&void 0===xhr.status?200:1223===xhr.status?204:xhr.status;var response=failureResponse,err=null;return 0!==status?(response={body:getBody(),statusCode:status,method:method,headers:{},url:uri,rawRequest:xhr},xhr.getAllResponseHeaders&&(response.headers=function(headers){var result={};return headers?(headers.trim().split("\n").forEach((function(row){var index=row.indexOf(":"),key=row.slice(0,index).trim().toLowerCase(),value=row.slice(index+1).trim();void 0===result[key]?result[key]=value:Array.isArray(result[key])?result[key].push(value):result[key]=[result[key],value]})),result):result}(xhr.getAllResponseHeaders()))):err=new Error("Internal XMLHttpRequest Error"),callback(err,response,response.body)}}var key,aborted,xhr=options.xhr||null;xhr||(xhr=options.cors||options.useXDR?new createXHR.XDomainRequest:new createXHR.XMLHttpRequest);var timeoutTimer,uri=xhr.url=options.uri||options.url,method=xhr.method=options.method||"GET",body=options.body||options.data,headers=xhr.headers=options.headers||{},sync=!!options.sync,isJson=!1,failureResponse={body:void 0,headers:{},statusCode:0,method:method,url:uri,rawRequest:xhr};if("json"in options&&!1!==options.json&&(isJson=!0,headers.accept||headers.Accept||(headers.Accept="application/json"),"GET"!==method&&"HEAD"!==method&&(headers["content-type"]||headers["Content-Type"]||(headers["Content-Type"]="application/json"),body=JSON.stringify(!0===options.json?body:options.json))),xhr.onreadystatechange=function(){4===xhr.readyState&&setTimeout(loadFunc,0)},xhr.onload=loadFunc,xhr.onerror=errorFunc,xhr.onprogress=function(){},xhr.onabort=function(){aborted=!0},xhr.ontimeout=errorFunc,xhr.open(method,uri,!sync,options.username,options.password),sync||(xhr.withCredentials=!!options.withCredentials),!sync&&options.timeout>0&&(timeoutTimer=setTimeout((function(){if(!aborted){aborted=!0,xhr.abort("timeout");var e=new Error("XMLHttpRequest timeout");e.code="ETIMEDOUT",errorFunc(e)}}),options.timeout)),xhr.setRequestHeader)for(key in headers)headers.hasOwnProperty(key)&&xhr.setRequestHeader(key,headers[key]);else if(options.headers&&!function(obj){for(var i in obj)if(obj.hasOwnProperty(i))return!1;return!0}(options.headers))throw new Error("Headers cannot be set on an XDomainRequest object");return"responseType"in options&&(xhr.responseType=options.responseType),"beforeSend"in options&&"function"==typeof options.beforeSend&&options.beforeSend(xhr),xhr.send(body||null),xhr}createXHR.XMLHttpRequest=window_1.XMLHttpRequest||function(){},createXHR.XDomainRequest="withCredentials"in new createXHR.XMLHttpRequest?createXHR.XMLHttpRequest:window_1.XDomainRequest,function(array,iterator){for(var i=0;i<array.length;i++)iterator(array[i])}(["get","put","post","patch","head","delete"],(function(method){createXHR["delete"===method?"del":method]=function(uri,options,callback){return(options=initParams(uri,options,callback)).method=method.toUpperCase(),_createXHR(options)}})),lib.default=default_1;var parseCues=function(srcContent,track){var parser=new window.WebVTT.Parser(window,window.vttjs,window.WebVTT.StringDecoder()),errors=[];parser.oncue=function(cue){track.addCue(cue)},parser.onparsingerror=function(error){errors.push(error)},parser.onflush=function(){track.trigger({type:"loadeddata",target:track})},parser.parse(srcContent),errors.length>0&&(window.console&&window.console.groupCollapsed&&window.console.groupCollapsed("Text Track parsing errors for "+track.src),errors.forEach((function(error){return log$1.error(error)})),window.console&&window.console.groupEnd&&window.console.groupEnd()),parser.flush()},loadTrack=function(src,track){var opts={uri:src},crossOrigin=isCrossOrigin(src);crossOrigin&&(opts.cors=crossOrigin);var withCredentials="use-credentials"===track.tech_.crossOrigin();withCredentials&&(opts.withCredentials=withCredentials),lib(opts,bind(this,(function(err,response,responseBody){if(err)return log$1.error(err,response);track.loaded_=!0,"function"!=typeof window.WebVTT?track.tech_&&track.tech_.any(["vttjsloaded","vttjserror"],(function(event){if("vttjserror"!==event.type)return parseCues(responseBody,track);log$1.error("vttjs failed to load, stopping trying to process "+track.src)})):parseCues(responseBody,track)})))},TextTrack=function(_Track){function TextTrack(options){var _this;if(void 0===options&&(options={}),!options.tech)throw new Error("A tech was not provided.");var settings=mergeOptions$3(options,{kind:TextTrackKind[options.kind]||"subtitles",language:options.language||options.srclang||""}),mode=TextTrackMode[settings.mode]||"disabled",default_=settings.default;"metadata"!==settings.kind&&"chapters"!==settings.kind||(mode="hidden"),(_this=_Track.call(this,settings)||this).tech_=settings.tech,_this.cues_=[],_this.activeCues_=[],_this.preload_=!1!==_this.tech_.preloadTextTracks;var cues=new TextTrackCueList(_this.cues_),activeCues=new TextTrackCueList(_this.activeCues_),changed=!1;_this.timeupdateHandler=bind(assertThisInitialized(_this),(function(event){void 0===event&&(event={}),this.tech_.isDisposed()||(this.tech_.isReady_?(this.activeCues=this.activeCues,changed&&(this.trigger("cuechange"),changed=!1),"timeupdate"!==event.type&&(this.rvf_=this.tech_.requestVideoFrameCallback(this.timeupdateHandler))):"timeupdate"!==event.type&&(this.rvf_=this.tech_.requestVideoFrameCallback(this.timeupdateHandler)))}));return _this.tech_.one("dispose",(function(){_this.stopTracking()})),"disabled"!==mode&&_this.startTracking(),Object.defineProperties(assertThisInitialized(_this),{default:{get:function(){return default_},set:function(){}},mode:{get:function(){return mode},set:function(newMode){TextTrackMode[newMode]&&mode!==newMode&&(mode=newMode,this.preload_||"disabled"===mode||0!==this.cues.length||loadTrack(this.src,this),this.stopTracking(),"disabled"!==mode&&this.startTracking(),this.trigger("modechange"))}},cues:{get:function(){return this.loaded_?cues:null},set:function(){}},activeCues:{get:function(){if(!this.loaded_)return null;if(0===this.cues.length)return activeCues;for(var ct=this.tech_.currentTime(),active=[],i=0,l=this.cues.length;i<l;i++){var cue=this.cues[i];(cue.startTime<=ct&&cue.endTime>=ct||cue.startTime===cue.endTime&&cue.startTime<=ct&&cue.startTime+.5>=ct)&&active.push(cue)}if(changed=!1,active.length!==this.activeCues_.length)changed=!0;else for(var _i=0;_i<active.length;_i++)-1===this.activeCues_.indexOf(active[_i])&&(changed=!0);return this.activeCues_=active,activeCues.setCues_(this.activeCues_),activeCues},set:function(){}}}),settings.src?(_this.src=settings.src,_this.preload_||(_this.loaded_=!0),(_this.preload_||"subtitles"!==settings.kind&&"captions"!==settings.kind)&&loadTrack(_this.src,assertThisInitialized(_this))):_this.loaded_=!0,_this}inheritsLoose(TextTrack,_Track);var _proto=TextTrack.prototype;return _proto.startTracking=function(){this.rvf_=this.tech_.requestVideoFrameCallback(this.timeupdateHandler),this.tech_.on("timeupdate",this.timeupdateHandler)},_proto.stopTracking=function(){this.rvf_&&(this.tech_.cancelVideoFrameCallback(this.rvf_),this.rvf_=void 0),this.tech_.off("timeupdate",this.timeupdateHandler)},_proto.addCue=function(originalCue){var cue=originalCue;if(window.vttjs&&!(originalCue instanceof window.vttjs.VTTCue)){for(var prop in cue=new window.vttjs.VTTCue(originalCue.startTime,originalCue.endTime,originalCue.text),originalCue)prop in cue||(cue[prop]=originalCue[prop]);cue.id=originalCue.id,cue.originalCue_=originalCue}for(var tracks=this.tech_.textTracks(),i=0;i<tracks.length;i++)tracks[i]!==this&&tracks[i].removeCue(cue);this.cues_.push(cue),this.cues.setCues_(this.cues_)},_proto.removeCue=function(_removeCue){for(var i=this.cues_.length;i--;){var cue=this.cues_[i];if(cue===_removeCue||cue.originalCue_&&cue.originalCue_===_removeCue){this.cues_.splice(i,1),this.cues.setCues_(this.cues_);break}}},TextTrack}(Track);TextTrack.prototype.allowedEvents_={cuechange:"cuechange"};var AudioTrack=function(_Track){function AudioTrack(options){var _this;void 0===options&&(options={});var settings=mergeOptions$3(options,{kind:AudioTrackKind[options.kind]||""});_this=_Track.call(this,settings)||this;var enabled=!1;return Object.defineProperty(assertThisInitialized(_this),"enabled",{get:function(){return enabled},set:function(newEnabled){"boolean"==typeof newEnabled&&newEnabled!==enabled&&(enabled=newEnabled,this.trigger("enabledchange"))}}),settings.enabled&&(_this.enabled=settings.enabled),_this.loaded_=!0,_this}return inheritsLoose(AudioTrack,_Track),AudioTrack}(Track),VideoTrack=function(_Track){function VideoTrack(options){var _this;void 0===options&&(options={});var settings=mergeOptions$3(options,{kind:VideoTrackKind[options.kind]||""});_this=_Track.call(this,settings)||this;var selected=!1;return Object.defineProperty(assertThisInitialized(_this),"selected",{get:function(){return selected},set:function(newSelected){"boolean"==typeof newSelected&&newSelected!==selected&&(selected=newSelected,this.trigger("selectedchange"))}}),settings.selected&&(_this.selected=settings.selected),_this}return inheritsLoose(VideoTrack,_Track),VideoTrack}(Track),HTMLTrackElement=function(_EventTarget){function HTMLTrackElement(options){var _this,readyState;void 0===options&&(options={}),_this=_EventTarget.call(this)||this;var track=new TextTrack(options);return _this.kind=track.kind,_this.src=track.src,_this.srclang=track.language,_this.label=track.label,_this.default=track.default,Object.defineProperties(assertThisInitialized(_this),{readyState:{get:function(){return readyState}},track:{get:function(){return track}}}),readyState=0,track.addEventListener("loadeddata",(function(){readyState=2,_this.trigger({type:"load",target:assertThisInitialized(_this)})})),_this}return inheritsLoose(HTMLTrackElement,_EventTarget),HTMLTrackElement}(EventTarget$2);HTMLTrackElement.prototype.allowedEvents_={load:"load"},HTMLTrackElement.NONE=0,HTMLTrackElement.LOADING=1,HTMLTrackElement.LOADED=2,HTMLTrackElement.ERROR=3;var NORMAL={audio:{ListClass:AudioTrackList,TrackClass:AudioTrack,capitalName:"Audio"},video:{ListClass:VideoTrackList,TrackClass:VideoTrack,capitalName:"Video"},text:{ListClass:TextTrackList,TrackClass:TextTrack,capitalName:"Text"}};Object.keys(NORMAL).forEach((function(type){NORMAL[type].getterName=type+"Tracks",NORMAL[type].privateName=type+"Tracks_"}));var REMOTE={remoteText:{ListClass:TextTrackList,TrackClass:TextTrack,capitalName:"RemoteText",getterName:"remoteTextTracks",privateName:"remoteTextTracks_"},remoteTextEl:{ListClass:HtmlTrackElementList,TrackClass:HTMLTrackElement,capitalName:"RemoteTextTrackEls",getterName:"remoteTextTrackEls",privateName:"remoteTextTrackEls_"}},ALL=_extends_1({},NORMAL,REMOTE);REMOTE.names=Object.keys(REMOTE),NORMAL.names=Object.keys(NORMAL),ALL.names=[].concat(REMOTE.names).concat(NORMAL.names);var doccy,topLevel=void 0!==commonjsGlobal?commonjsGlobal:"undefined"!=typeof window?window:{};"undefined"!=typeof document?doccy=document:(doccy=topLevel["__GLOBAL_DOCUMENT_CACHE@4"])||(doccy=topLevel["__GLOBAL_DOCUMENT_CACHE@4"]={});var document_1=doccy,_objCreate=Object.create||function(){function F(){}return function(o){if(1!==arguments.length)throw new Error("Object.create shim only accepts one parameter.");return F.prototype=o,new F}}();function ParsingError(errorData,message){this.name="ParsingError",this.code=errorData.code,this.message=message||errorData.message}function parseTimeStamp(input){function computeSeconds(h,m,s,f){return 3600*(0|h)+60*(0|m)+(0|s)+(0|f)/1e3}var m=input.match(/^(\d+):(\d{1,2})(:\d{1,2})?\.(\d{3})/);return m?m[3]?computeSeconds(m[1],m[2],m[3].replace(":",""),m[4]):m[1]>59?computeSeconds(m[1],m[2],0,m[4]):computeSeconds(0,m[1],m[2],m[4]):null}function Settings(){this.values=_objCreate(null)}function parseOptions(input,callback,keyValueDelim,groupDelim){var groups=groupDelim?input.split(groupDelim):[input];for(var i in groups)if("string"==typeof groups[i]){var kv=groups[i].split(keyValueDelim);if(2===kv.length)callback(kv[0].trim(),kv[1].trim())}}function parseCue(input,cue,regionList){var oInput=input;function consumeTimeStamp(){var ts=parseTimeStamp(input);if(null===ts)throw new ParsingError(ParsingError.Errors.BadTimeStamp,"Malformed timestamp: "+oInput);return input=input.replace(/^[^\sa-zA-Z-]+/,""),ts}function skipWhitespace(){input=input.replace(/^\s+/,"")}if(skipWhitespace(),cue.startTime=consumeTimeStamp(),skipWhitespace(),"--\x3e"!==input.substr(0,3))throw new ParsingError(ParsingError.Errors.BadTimeStamp,"Malformed time stamp (time stamps must be separated by '--\x3e'): "+oInput);input=input.substr(3),skipWhitespace(),cue.endTime=consumeTimeStamp(),skipWhitespace(),function(input,cue){var settings=new Settings;parseOptions(input,(function(k,v){switch(k){case"region":for(var i=regionList.length-1;i>=0;i--)if(regionList[i].id===v){settings.set(k,regionList[i].region);break}break;case"vertical":settings.alt(k,v,["rl","lr"]);break;case"line":var vals=v.split(","),vals0=vals[0];settings.integer(k,vals0),settings.percent(k,vals0)&&settings.set("snapToLines",!1),settings.alt(k,vals0,["auto"]),2===vals.length&&settings.alt("lineAlign",vals[1],["start","center","end"]);break;case"position":vals=v.split(","),settings.percent(k,vals[0]),2===vals.length&&settings.alt("positionAlign",vals[1],["start","center","end"]);break;case"size":settings.percent(k,v);break;case"align":settings.alt(k,v,["start","center","end","left","right"])}}),/:/,/\s/),cue.region=settings.get("region",null),cue.vertical=settings.get("vertical","");try{cue.line=settings.get("line","auto")}catch(e){}cue.lineAlign=settings.get("lineAlign","start"),cue.snapToLines=settings.get("snapToLines",!0),cue.size=settings.get("size",100);try{cue.align=settings.get("align","center")}catch(e){cue.align=settings.get("align","middle")}try{cue.position=settings.get("position","auto")}catch(e){cue.position=settings.get("position",{start:0,left:0,center:50,middle:50,end:100,right:100},cue.align)}cue.positionAlign=settings.get("positionAlign",{start:"start",left:"start",center:"center",middle:"center",end:"end",right:"end"},cue.align)}(input,cue)}ParsingError.prototype=_objCreate(Error.prototype),ParsingError.prototype.constructor=ParsingError,ParsingError.Errors={BadSignature:{code:0,message:"Malformed WebVTT signature."},BadTimeStamp:{code:1,message:"Malformed time stamp."}},Settings.prototype={set:function(k,v){this.get(k)||""===v||(this.values[k]=v)},get:function(k,dflt,defaultKey){return defaultKey?this.has(k)?this.values[k]:dflt[defaultKey]:this.has(k)?this.values[k]:dflt},has:function(k){return k in this.values},alt:function(k,v,a){for(var n=0;n<a.length;++n)if(v===a[n]){this.set(k,v);break}},integer:function(k,v){/^-?\d+$/.test(v)&&this.set(k,parseInt(v,10))},percent:function(k,v){return!!(v.match(/^([\d]{1,3})(\.[\d]*)?%$/)&&(v=parseFloat(v))>=0&&v<=100)&&(this.set(k,v),!0)}};var TEXTAREA_ELEMENT=document_1.createElement&&document_1.createElement("textarea"),TAG_NAME={c:"span",i:"i",b:"b",u:"u",ruby:"ruby",rt:"rt",v:"span",lang:"span"},DEFAULT_COLOR_CLASS={white:"rgba(255,255,255,1)",lime:"rgba(0,255,0,1)",cyan:"rgba(0,255,255,1)",red:"rgba(255,0,0,1)",yellow:"rgba(255,255,0,1)",magenta:"rgba(255,0,255,1)",blue:"rgba(0,0,255,1)",black:"rgba(0,0,0,1)"},TAG_ANNOTATION={v:"title",lang:"lang"},NEEDS_PARENT={rt:"ruby"};function parseContent(window,input){function nextToken(){if(!input)return null;var result,m=input.match(/^([^<]*)(<[^>]*>?)?/);return result=m[1]?m[1]:m[2],input=input.substr(result.length),result}function shouldAdd(current,element){return!NEEDS_PARENT[element.localName]||NEEDS_PARENT[element.localName]===current.localName}function createElement(type,annotation){var tagName=TAG_NAME[type];if(!tagName)return null;var element=window.document.createElement(tagName),name=TAG_ANNOTATION[type];return name&&annotation&&(element[name]=annotation.trim()),element}for(var t,s,rootDiv=window.document.createElement("div"),current=rootDiv,tagStack=[];null!==(t=nextToken());)if("<"!==t[0])current.appendChild(window.document.createTextNode((s=t,TEXTAREA_ELEMENT.innerHTML=s,s=TEXTAREA_ELEMENT.textContent,TEXTAREA_ELEMENT.textContent="",s)));else{if("/"===t[1]){tagStack.length&&tagStack[tagStack.length-1]===t.substr(2).replace(">","")&&(tagStack.pop(),current=current.parentNode);continue}var node,ts=parseTimeStamp(t.substr(1,t.length-2));if(ts){node=window.document.createProcessingInstruction("timestamp",ts),current.appendChild(node);continue}var m=t.match(/^<([^.\s/0-9>]+)(\.[^\s\\>]+)?([^>\\]+)?(\\?)>?$/);if(!m)continue;if(!(node=createElement(m[1],m[3])))continue;if(!shouldAdd(current,node))continue;if(m[2]){var classes=m[2].split(".");classes.forEach((function(cl){var bgColor=/^bg_/.test(cl),colorName=bgColor?cl.slice(3):cl;if(DEFAULT_COLOR_CLASS.hasOwnProperty(colorName)){var propName=bgColor?"background-color":"color",propValue=DEFAULT_COLOR_CLASS[colorName];node.style[propName]=propValue}})),node.className=classes.join(" ")}tagStack.push(m[1]),current.appendChild(node),current=node}return rootDiv}var strongRTLRanges=[[1470,1470],[1472,1472],[1475,1475],[1478,1478],[1488,1514],[1520,1524],[1544,1544],[1547,1547],[1549,1549],[1563,1563],[1566,1610],[1645,1647],[1649,1749],[1765,1766],[1774,1775],[1786,1805],[1807,1808],[1810,1839],[1869,1957],[1969,1969],[1984,2026],[2036,2037],[2042,2042],[2048,2069],[2074,2074],[2084,2084],[2088,2088],[2096,2110],[2112,2136],[2142,2142],[2208,2208],[2210,2220],[8207,8207],[64285,64285],[64287,64296],[64298,64310],[64312,64316],[64318,64318],[64320,64321],[64323,64324],[64326,64449],[64467,64829],[64848,64911],[64914,64967],[65008,65020],[65136,65140],[65142,65276],[67584,67589],[67592,67592],[67594,67637],[67639,67640],[67644,67644],[67647,67669],[67671,67679],[67840,67867],[67872,67897],[67903,67903],[67968,68023],[68030,68031],[68096,68096],[68112,68115],[68117,68119],[68121,68147],[68160,68167],[68176,68184],[68192,68223],[68352,68405],[68416,68437],[68440,68466],[68472,68479],[68608,68680],[126464,126467],[126469,126495],[126497,126498],[126500,126500],[126503,126503],[126505,126514],[126516,126519],[126521,126521],[126523,126523],[126530,126530],[126535,126535],[126537,126537],[126539,126539],[126541,126543],[126545,126546],[126548,126548],[126551,126551],[126553,126553],[126555,126555],[126557,126557],[126559,126559],[126561,126562],[126564,126564],[126567,126570],[126572,126578],[126580,126583],[126585,126588],[126590,126590],[126592,126601],[126603,126619],[126625,126627],[126629,126633],[126635,126651],[1114109,1114109]];function isStrongRTLChar(charCode){for(var i=0;i<strongRTLRanges.length;i++){var currentRange=strongRTLRanges[i];if(charCode>=currentRange[0]&&charCode<=currentRange[1])return!0}return!1}function determineBidi(cueDiv){var nodeStack=[],text="";if(!cueDiv||!cueDiv.childNodes)return"ltr";function pushNodes(nodeStack,node){for(var i=node.childNodes.length-1;i>=0;i--)nodeStack.push(node.childNodes[i])}function nextTextNode(nodeStack){if(!nodeStack||!nodeStack.length)return null;var node=nodeStack.pop(),text=node.textContent||node.innerText;if(text){var m=text.match(/^.*(\n|\r)/);return m?(nodeStack.length=0,m[0]):text}return"ruby"===node.tagName?nextTextNode(nodeStack):node.childNodes?(pushNodes(nodeStack,node),nextTextNode(nodeStack)):void 0}for(pushNodes(nodeStack,cueDiv);text=nextTextNode(nodeStack);)for(var i=0;i<text.length;i++)if(isStrongRTLChar(text.charCodeAt(i)))return"rtl";return"ltr"}function StyleBox(){}function CueStyleBox(window,cue,styleOptions){StyleBox.call(this),this.cue=cue,this.cueDiv=parseContent(window,cue.text);var styles={color:"rgba(255, 255, 255, 1)",backgroundColor:"rgba(0, 0, 0, 0.8)",position:"relative",left:0,right:0,top:0,bottom:0,display:"inline",writingMode:""===cue.vertical?"horizontal-tb":"lr"===cue.vertical?"vertical-lr":"vertical-rl",unicodeBidi:"plaintext"};this.applyStyles(styles,this.cueDiv),this.div=window.document.createElement("div"),styles={direction:determineBidi(this.cueDiv),writingMode:""===cue.vertical?"horizontal-tb":"lr"===cue.vertical?"vertical-lr":"vertical-rl",unicodeBidi:"plaintext",textAlign:"middle"===cue.align?"center":cue.align,font:styleOptions.font,whiteSpace:"pre-line",position:"absolute"},this.applyStyles(styles),this.div.appendChild(this.cueDiv);var textPos=0;switch(cue.positionAlign){case"start":textPos=cue.position;break;case"center":textPos=cue.position-cue.size/2;break;case"end":textPos=cue.position-cue.size}""===cue.vertical?this.applyStyles({left:this.formatStyle(textPos,"%"),width:this.formatStyle(cue.size,"%")}):this.applyStyles({top:this.formatStyle(textPos,"%"),height:this.formatStyle(cue.size,"%")}),this.move=function(box){this.applyStyles({top:this.formatStyle(box.top,"px"),bottom:this.formatStyle(box.bottom,"px"),left:this.formatStyle(box.left,"px"),right:this.formatStyle(box.right,"px"),height:this.formatStyle(box.height,"px"),width:this.formatStyle(box.width,"px")})}}function BoxPosition(obj){var lh,height,width,top;if(obj.div){height=obj.div.offsetHeight,width=obj.div.offsetWidth,top=obj.div.offsetTop;var rects=(rects=obj.div.childNodes)&&(rects=rects[0])&&rects.getClientRects&&rects.getClientRects();obj=obj.div.getBoundingClientRect(),lh=rects?Math.max(rects[0]&&rects[0].height||0,obj.height/rects.length):0}this.left=obj.left,this.right=obj.right,this.top=obj.top||top,this.height=obj.height||height,this.bottom=obj.bottom||top+(obj.height||height),this.width=obj.width||width,this.lineHeight=void 0!==lh?lh:obj.lineHeight}function moveBoxToLinePosition(window,styleBox,containerBox,boxPositions){var boxPosition=new BoxPosition(styleBox),cue=styleBox.cue,linePos=function(cue){if("number"==typeof cue.line&&(cue.snapToLines||cue.line>=0&&cue.line<=100))return cue.line;if(!cue.track||!cue.track.textTrackList||!cue.track.textTrackList.mediaElement)return-1;for(var track=cue.track,trackList=track.textTrackList,count=0,i=0;i<trackList.length&&trackList[i]!==track;i++)"showing"===trackList[i].mode&&count++;return-1*++count}(cue),axis=[];if(cue.snapToLines){var size;switch(cue.vertical){case"":axis=["+y","-y"],size="height";break;case"rl":axis=["+x","-x"],size="width";break;case"lr":axis=["-x","+x"],size="width"}var step=boxPosition.lineHeight,position=step*Math.round(linePos),maxPosition=containerBox[size]+step,initialAxis=axis[0];Math.abs(position)>maxPosition&&(position=position<0?-1:1,position*=Math.ceil(maxPosition/step)*step),linePos<0&&(position+=""===cue.vertical?containerBox.height:containerBox.width,axis=axis.reverse()),boxPosition.move(initialAxis,position)}else{var calculatedPercentage=boxPosition.lineHeight/containerBox.height*100;switch(cue.lineAlign){case"center":linePos-=calculatedPercentage/2;break;case"end":linePos-=calculatedPercentage}switch(cue.vertical){case"":styleBox.applyStyles({top:styleBox.formatStyle(linePos,"%")});break;case"rl":styleBox.applyStyles({left:styleBox.formatStyle(linePos,"%")});break;case"lr":styleBox.applyStyles({right:styleBox.formatStyle(linePos,"%")})}axis=["+y","-x","+x","-y"],boxPosition=new BoxPosition(styleBox)}var bestPosition=function(b,axis){for(var bestPosition,specifiedPosition=new BoxPosition(b),percentage=1,i=0;i<axis.length;i++){for(;b.overlapsOppositeAxis(containerBox,axis[i])||b.within(containerBox)&&b.overlapsAny(boxPositions);)b.move(axis[i]);if(b.within(containerBox))return b;var p=b.intersectPercentage(containerBox);percentage>p&&(bestPosition=new BoxPosition(b),percentage=p),b=new BoxPosition(specifiedPosition)}return bestPosition||specifiedPosition}(boxPosition,axis);styleBox.move(bestPosition.toCSSCompatValues(containerBox))}function WebVTT$1(){}StyleBox.prototype.applyStyles=function(styles,div){for(var prop in div=div||this.div,styles)styles.hasOwnProperty(prop)&&(div.style[prop]=styles[prop])},StyleBox.prototype.formatStyle=function(val,unit){return 0===val?0:val+unit},CueStyleBox.prototype=_objCreate(StyleBox.prototype),CueStyleBox.prototype.constructor=CueStyleBox,BoxPosition.prototype.move=function(axis,toMove){switch(toMove=void 0!==toMove?toMove:this.lineHeight,axis){case"+x":this.left+=toMove,this.right+=toMove;break;case"-x":this.left-=toMove,this.right-=toMove;break;case"+y":this.top+=toMove,this.bottom+=toMove;break;case"-y":this.top-=toMove,this.bottom-=toMove}},BoxPosition.prototype.overlaps=function(b2){return this.left<b2.right&&this.right>b2.left&&this.top<b2.bottom&&this.bottom>b2.top},BoxPosition.prototype.overlapsAny=function(boxes){for(var i=0;i<boxes.length;i++)if(this.overlaps(boxes[i]))return!0;return!1},BoxPosition.prototype.within=function(container){return this.top>=container.top&&this.bottom<=container.bottom&&this.left>=container.left&&this.right<=container.right},BoxPosition.prototype.overlapsOppositeAxis=function(container,axis){switch(axis){case"+x":return this.left<container.left;case"-x":return this.right>container.right;case"+y":return this.top<container.top;case"-y":return this.bottom>container.bottom}},BoxPosition.prototype.intersectPercentage=function(b2){return Math.max(0,Math.min(this.right,b2.right)-Math.max(this.left,b2.left))*Math.max(0,Math.min(this.bottom,b2.bottom)-Math.max(this.top,b2.top))/(this.height*this.width)},BoxPosition.prototype.toCSSCompatValues=function(reference){return{top:this.top-reference.top,bottom:reference.bottom-this.bottom,left:this.left-reference.left,right:reference.right-this.right,height:this.height,width:this.width}},BoxPosition.getSimpleBoxPosition=function(obj){var height=obj.div?obj.div.offsetHeight:obj.tagName?obj.offsetHeight:0,width=obj.div?obj.div.offsetWidth:obj.tagName?obj.offsetWidth:0,top=obj.div?obj.div.offsetTop:obj.tagName?obj.offsetTop:0;return{left:(obj=obj.div?obj.div.getBoundingClientRect():obj.tagName?obj.getBoundingClientRect():obj).left,right:obj.right,top:obj.top||top,height:obj.height||height,bottom:obj.bottom||top+(obj.height||height),width:obj.width||width}},WebVTT$1.StringDecoder=function(){return{decode:function(data){if(!data)return"";if("string"!=typeof data)throw new Error("Error - expected string data.");return decodeURIComponent(encodeURIComponent(data))}}},WebVTT$1.convertCueToDOMTree=function(window,cuetext){return window&&cuetext?parseContent(window,cuetext):null};WebVTT$1.processCues=function(window,cues,overlay){if(!window||!cues||!overlay)return null;for(;overlay.firstChild;)overlay.removeChild(overlay.firstChild);var paddedOverlay=window.document.createElement("div");if(paddedOverlay.style.position="absolute",paddedOverlay.style.left="0",paddedOverlay.style.right="0",paddedOverlay.style.top="0",paddedOverlay.style.bottom="0",paddedOverlay.style.margin="1.5%",overlay.appendChild(paddedOverlay),function(cues){for(var i=0;i<cues.length;i++)if(cues[i].hasBeenReset||!cues[i].displayState)return!0;return!1}(cues)){var boxPositions=[],containerBox=BoxPosition.getSimpleBoxPosition(paddedOverlay),styleOptions={font:Math.round(.05*containerBox.height*100)/100+"px sans-serif"};!function(){for(var styleBox,cue,i=0;i<cues.length;i++)cue=cues[i],styleBox=new CueStyleBox(window,cue,styleOptions),paddedOverlay.appendChild(styleBox.div),moveBoxToLinePosition(0,styleBox,containerBox,boxPositions),cue.displayState=styleBox.div,boxPositions.push(BoxPosition.getSimpleBoxPosition(styleBox))}()}else for(var i=0;i<cues.length;i++)paddedOverlay.appendChild(cues[i].displayState)},WebVTT$1.Parser=function(window,vttjs,decoder){decoder||(decoder=vttjs,vttjs={}),vttjs||(vttjs={}),this.window=window,this.vttjs=vttjs,this.state="INITIAL",this.buffer="",this.decoder=decoder||new TextDecoder("utf8"),this.regionList=[]},WebVTT$1.Parser.prototype={reportOrThrowError:function(e){if(!(e instanceof ParsingError))throw e;this.onparsingerror&&this.onparsingerror(e)},parse:function(data){var self=this;function collectNextLine(){for(var buffer=self.buffer,pos=0;pos<buffer.length&&"\r"!==buffer[pos]&&"\n"!==buffer[pos];)++pos;var line=buffer.substr(0,pos);return"\r"===buffer[pos]&&++pos,"\n"===buffer[pos]&&++pos,self.buffer=buffer.substr(pos),line}function parseHeader(input){input.match(/X-TIMESTAMP-MAP/)?parseOptions(input,(function(k,v){if("X-TIMESTAMP-MAP"===k)!function(input){var settings=new Settings;parseOptions(input,(function(k,v){switch(k){case"MPEGT":settings.integer(k+"S",v);break;case"LOCA":settings.set(k+"L",parseTimeStamp(v))}}),/[^\d]:/,/,/),self.ontimestampmap&&self.ontimestampmap({MPEGTS:settings.get("MPEGTS"),LOCAL:settings.get("LOCAL")})}(v)}),/=/):parseOptions(input,(function(k,v){if("Region"===k)!function(input){var settings=new Settings;if(parseOptions(input,(function(k,v){switch(k){case"id":settings.set(k,v);break;case"width":settings.percent(k,v);break;case"lines":settings.integer(k,v);break;case"regionanchor":case"viewportanchor":var xy=v.split(",");if(2!==xy.length)break;var anchor=new Settings;if(anchor.percent("x",xy[0]),anchor.percent("y",xy[1]),!anchor.has("x")||!anchor.has("y"))break;settings.set(k+"X",anchor.get("x")),settings.set(k+"Y",anchor.get("y"));break;case"scroll":settings.alt(k,v,["up"])}}),/=/,/\s/),settings.has("id")){var region=new(self.vttjs.VTTRegion||self.window.VTTRegion);region.width=settings.get("width",100),region.lines=settings.get("lines",3),region.regionAnchorX=settings.get("regionanchorX",0),region.regionAnchorY=settings.get("regionanchorY",100),region.viewportAnchorX=settings.get("viewportanchorX",0),region.viewportAnchorY=settings.get("viewportanchorY",100),region.scroll=settings.get("scroll",""),self.onregion&&self.onregion(region),self.regionList.push({id:settings.get("id"),region:region})}}(v)}),/:/)}data&&(self.buffer+=self.decoder.decode(data,{stream:!0}));try{var line;if("INITIAL"===self.state){if(!/\r\n|\n/.test(self.buffer))return this;var m=(line=collectNextLine()).match(/^WEBVTT([ \t].*)?$/);if(!m||!m[0])throw new ParsingError(ParsingError.Errors.BadSignature);self.state="HEADER"}for(var alreadyCollectedLine=!1;self.buffer;){if(!/\r\n|\n/.test(self.buffer))return this;switch(alreadyCollectedLine?alreadyCollectedLine=!1:line=collectNextLine(),self.state){case"HEADER":/:/.test(line)?parseHeader(line):line||(self.state="ID");continue;case"NOTE":line||(self.state="ID");continue;case"ID":if(/^NOTE($|[ \t])/.test(line)){self.state="NOTE";break}if(!line)continue;self.cue=new(self.vttjs.VTTCue||self.window.VTTCue)(0,0,"");try{self.cue.align="center"}catch(e){self.cue.align="middle"}if(self.state="CUE",-1===line.indexOf("--\x3e")){self.cue.id=line;continue}case"CUE":try{parseCue(line,self.cue,self.regionList)}catch(e){self.reportOrThrowError(e),self.cue=null,self.state="BADCUE";continue}self.state="CUETEXT";continue;case"CUETEXT":var hasSubstring=-1!==line.indexOf("--\x3e");if(!line||hasSubstring&&(alreadyCollectedLine=!0)){self.oncue&&self.oncue(self.cue),self.cue=null,self.state="ID";continue}self.cue.text&&(self.cue.text+="\n"),self.cue.text+=line.replace(/\u2028/g,"\n").replace(/u2029/g,"\n");continue;case"BADCUE":line||(self.state="ID");continue}}}catch(e){self.reportOrThrowError(e),"CUETEXT"===self.state&&self.cue&&self.oncue&&self.oncue(self.cue),self.cue=null,self.state="INITIAL"===self.state?"BADWEBVTT":"BADCUE"}return this},flush:function(){try{if(this.buffer+=this.decoder.decode(),(this.cue||"HEADER"===this.state)&&(this.buffer+="\n\n",this.parse()),"INITIAL"===this.state)throw new ParsingError(ParsingError.Errors.BadSignature)}catch(e){this.reportOrThrowError(e)}return this.onflush&&this.onflush(),this}};var vtt=WebVTT$1,directionSetting={"":1,lr:1,rl:1},alignSetting={start:1,center:1,end:1,left:1,right:1,auto:1,"line-left":1,"line-right":1};function findAlignSetting(value){return"string"==typeof value&&(!!alignSetting[value.toLowerCase()]&&value.toLowerCase())}function VTTCue(startTime,endTime,text){this.hasBeenReset=!1;var _id="",_pauseOnExit=!1,_startTime=startTime,_endTime=endTime,_text=text,_region=null,_vertical="",_snapToLines=!0,_line="auto",_lineAlign="start",_position="auto",_positionAlign="auto",_size=100,_align="center";Object.defineProperties(this,{id:{enumerable:!0,get:function(){return _id},set:function(value){_id=""+value}},pauseOnExit:{enumerable:!0,get:function(){return _pauseOnExit},set:function(value){_pauseOnExit=!!value}},startTime:{enumerable:!0,get:function(){return _startTime},set:function(value){if("number"!=typeof value)throw new TypeError("Start time must be set to a number.");_startTime=value,this.hasBeenReset=!0}},endTime:{enumerable:!0,get:function(){return _endTime},set:function(value){if("number"!=typeof value)throw new TypeError("End time must be set to a number.");_endTime=value,this.hasBeenReset=!0}},text:{enumerable:!0,get:function(){return _text},set:function(value){_text=""+value,this.hasBeenReset=!0}},region:{enumerable:!0,get:function(){return _region},set:function(value){_region=value,this.hasBeenReset=!0}},vertical:{enumerable:!0,get:function(){return _vertical},set:function(value){var setting=function(value){return"string"==typeof value&&!!directionSetting[value.toLowerCase()]&&value.toLowerCase()}(value);if(!1===setting)throw new SyntaxError("Vertical: an invalid or illegal direction string was specified.");_vertical=setting,this.hasBeenReset=!0}},snapToLines:{enumerable:!0,get:function(){return _snapToLines},set:function(value){_snapToLines=!!value,this.hasBeenReset=!0}},line:{enumerable:!0,get:function(){return _line},set:function(value){if("number"!=typeof value&&"auto"!==value)throw new SyntaxError("Line: an invalid number or illegal string was specified.");_line=value,this.hasBeenReset=!0}},lineAlign:{enumerable:!0,get:function(){return _lineAlign},set:function(value){var setting=findAlignSetting(value);setting?(_lineAlign=setting,this.hasBeenReset=!0):console.warn("lineAlign: an invalid or illegal string was specified.")}},position:{enumerable:!0,get:function(){return _position},set:function(value){if(value<0||value>100)throw new Error("Position must be between 0 and 100.");_position=value,this.hasBeenReset=!0}},positionAlign:{enumerable:!0,get:function(){return _positionAlign},set:function(value){var setting=findAlignSetting(value);setting?(_positionAlign=setting,this.hasBeenReset=!0):console.warn("positionAlign: an invalid or illegal string was specified.")}},size:{enumerable:!0,get:function(){return _size},set:function(value){if(value<0||value>100)throw new Error("Size must be between 0 and 100.");_size=value,this.hasBeenReset=!0}},align:{enumerable:!0,get:function(){return _align},set:function(value){var setting=findAlignSetting(value);if(!setting)throw new SyntaxError("align: an invalid or illegal alignment string was specified.");_align=setting,this.hasBeenReset=!0}}}),this.displayState=void 0}VTTCue.prototype.getCueAsHTML=function(){return WebVTT.convertCueToDOMTree(window,this.text)};var vttcue=VTTCue,scrollSetting={"":!0,up:!0};function isValidPercentValue(value){return"number"==typeof value&&value>=0&&value<=100}var vttregion=function(){var _width=100,_lines=3,_regionAnchorX=0,_regionAnchorY=100,_viewportAnchorX=0,_viewportAnchorY=100,_scroll="";Object.defineProperties(this,{width:{enumerable:!0,get:function(){return _width},set:function(value){if(!isValidPercentValue(value))throw new Error("Width must be between 0 and 100.");_width=value}},lines:{enumerable:!0,get:function(){return _lines},set:function(value){if("number"!=typeof value)throw new TypeError("Lines must be set to a number.");_lines=value}},regionAnchorY:{enumerable:!0,get:function(){return _regionAnchorY},set:function(value){if(!isValidPercentValue(value))throw new Error("RegionAnchorX must be between 0 and 100.");_regionAnchorY=value}},regionAnchorX:{enumerable:!0,get:function(){return _regionAnchorX},set:function(value){if(!isValidPercentValue(value))throw new Error("RegionAnchorY must be between 0 and 100.");_regionAnchorX=value}},viewportAnchorY:{enumerable:!0,get:function(){return _viewportAnchorY},set:function(value){if(!isValidPercentValue(value))throw new Error("ViewportAnchorY must be between 0 and 100.");_viewportAnchorY=value}},viewportAnchorX:{enumerable:!0,get:function(){return _viewportAnchorX},set:function(value){if(!isValidPercentValue(value))throw new Error("ViewportAnchorX must be between 0 and 100.");_viewportAnchorX=value}},scroll:{enumerable:!0,get:function(){return _scroll},set:function(value){var setting=function(value){return"string"==typeof value&&!!scrollSetting[value.toLowerCase()]&&value.toLowerCase()}(value);!1===setting?console.warn("Scroll: an invalid or illegal string was specified."):_scroll=setting}}})},browserIndex=createCommonjsModule((function(module){var vttjs=module.exports={WebVTT:vtt,VTTCue:vttcue,VTTRegion:vttregion};window_1.vttjs=vttjs,window_1.WebVTT=vttjs.WebVTT;var cueShim=vttjs.VTTCue,regionShim=vttjs.VTTRegion,nativeVTTCue=window_1.VTTCue,nativeVTTRegion=window_1.VTTRegion;vttjs.shim=function(){window_1.VTTCue=cueShim,window_1.VTTRegion=regionShim},vttjs.restore=function(){window_1.VTTCue=nativeVTTCue,window_1.VTTRegion=nativeVTTRegion},window_1.VTTCue||vttjs.shim()}));browserIndex.WebVTT,browserIndex.VTTCue,browserIndex.VTTRegion;var Tech=function(_Component){function Tech(options,ready){var _this;return void 0===options&&(options={}),void 0===ready&&(ready=function(){}),options.reportTouchActivity=!1,(_this=_Component.call(this,null,options,ready)||this).onDurationChange_=function(e){return _this.onDurationChange(e)},_this.trackProgress_=function(e){return _this.trackProgress(e)},_this.trackCurrentTime_=function(e){return _this.trackCurrentTime(e)},_this.stopTrackingCurrentTime_=function(e){return _this.stopTrackingCurrentTime(e)},_this.disposeSourceHandler_=function(e){return _this.disposeSourceHandler(e)},_this.queuedHanders_=new Set,_this.hasStarted_=!1,_this.on("playing",(function(){this.hasStarted_=!0})),_this.on("loadstart",(function(){this.hasStarted_=!1})),ALL.names.forEach((function(name){var props=ALL[name];options&&options[props.getterName]&&(_this[props.privateName]=options[props.getterName])})),_this.featuresProgressEvents||_this.manualProgressOn(),_this.featuresTimeupdateEvents||_this.manualTimeUpdatesOn(),["Text","Audio","Video"].forEach((function(track){!1===options["native"+track+"Tracks"]&&(_this["featuresNative"+track+"Tracks"]=!1)})),!1===options.nativeCaptions||!1===options.nativeTextTracks?_this.featuresNativeTextTracks=!1:!0!==options.nativeCaptions&&!0!==options.nativeTextTracks||(_this.featuresNativeTextTracks=!0),_this.featuresNativeTextTracks||_this.emulateTextTracks(),_this.preloadTextTracks=!1!==options.preloadTextTracks,_this.autoRemoteTextTracks_=new ALL.text.ListClass,_this.initTrackListeners(),options.nativeControlsForTouch||_this.emitTapEvents(),_this.constructor&&(_this.name_=_this.constructor.name||"Unknown Tech"),_this}inheritsLoose(Tech,_Component);var _proto=Tech.prototype;return _proto.triggerSourceset=function(src){var _this2=this;this.isReady_||this.one("ready",(function(){return _this2.setTimeout((function(){return _this2.triggerSourceset(src)}),1)})),this.trigger({src:src,type:"sourceset"})},_proto.manualProgressOn=function(){this.on("durationchange",this.onDurationChange_),this.manualProgress=!0,this.one("ready",this.trackProgress_)},_proto.manualProgressOff=function(){this.manualProgress=!1,this.stopTrackingProgress(),this.off("durationchange",this.onDurationChange_)},_proto.trackProgress=function(event){this.stopTrackingProgress(),this.progressInterval=this.setInterval(bind(this,(function(){var numBufferedPercent=this.bufferedPercent();this.bufferedPercent_!==numBufferedPercent&&this.trigger("progress"),this.bufferedPercent_=numBufferedPercent,1===numBufferedPercent&&this.stopTrackingProgress()})),500)},_proto.onDurationChange=function(event){this.duration_=this.duration()},_proto.buffered=function(){return createTimeRanges(0,0)},_proto.bufferedPercent=function(){return bufferedPercent(this.buffered(),this.duration_)},_proto.stopTrackingProgress=function(){this.clearInterval(this.progressInterval)},_proto.manualTimeUpdatesOn=function(){this.manualTimeUpdates=!0,this.on("play",this.trackCurrentTime_),this.on("pause",this.stopTrackingCurrentTime_)},_proto.manualTimeUpdatesOff=function(){this.manualTimeUpdates=!1,this.stopTrackingCurrentTime(),this.off("play",this.trackCurrentTime_),this.off("pause",this.stopTrackingCurrentTime_)},_proto.trackCurrentTime=function(){this.currentTimeInterval&&this.stopTrackingCurrentTime(),this.currentTimeInterval=this.setInterval((function(){this.trigger({type:"timeupdate",target:this,manuallyTriggered:!0})}),250)},_proto.stopTrackingCurrentTime=function(){this.clearInterval(this.currentTimeInterval),this.trigger({type:"timeupdate",target:this,manuallyTriggered:!0})},_proto.dispose=function(){this.clearTracks(NORMAL.names),this.manualProgress&&this.manualProgressOff(),this.manualTimeUpdates&&this.manualTimeUpdatesOff(),_Component.prototype.dispose.call(this)},_proto.clearTracks=function(types){var _this3=this;(types=[].concat(types)).forEach((function(type){for(var list=_this3[type+"Tracks"]()||[],i=list.length;i--;){var track=list[i];"text"===type&&_this3.removeRemoteTextTrack(track),list.removeTrack(track)}}))},_proto.cleanupAutoTextTracks=function(){for(var list=this.autoRemoteTextTracks_||[],i=list.length;i--;){var track=list[i];this.removeRemoteTextTrack(track)}},_proto.reset=function(){},_proto.crossOrigin=function(){},_proto.setCrossOrigin=function(){},_proto.error=function(err){return void 0!==err&&(this.error_=new MediaError(err),this.trigger("error")),this.error_},_proto.played=function(){return this.hasStarted_?createTimeRanges(0,0):createTimeRanges()},_proto.play=function(){},_proto.setScrubbing=function(){},_proto.scrubbing=function(){},_proto.setCurrentTime=function(){this.manualTimeUpdates&&this.trigger({type:"timeupdate",target:this,manuallyTriggered:!0})},_proto.initTrackListeners=function(){var _this4=this;NORMAL.names.forEach((function(name){var props=NORMAL[name],trackListChanges=function(){_this4.trigger(name+"trackchange")},tracks=_this4[props.getterName]();tracks.addEventListener("removetrack",trackListChanges),tracks.addEventListener("addtrack",trackListChanges),_this4.on("dispose",(function(){tracks.removeEventListener("removetrack",trackListChanges),tracks.removeEventListener("addtrack",trackListChanges)}))}))},_proto.addWebVttScript_=function(){var _this5=this;if(!window.WebVTT)if(document.body.contains(this.el())){if(!this.options_["vtt.js"]&&isPlain(browserIndex)&&Object.keys(browserIndex).length>0)return void this.trigger("vttjsloaded");var script=document.createElement("script");script.src=this.options_["vtt.js"]||"https://vjs.zencdn.net/vttjs/0.14.1/vtt.min.js",script.onload=function(){_this5.trigger("vttjsloaded")},script.onerror=function(){_this5.trigger("vttjserror")},this.on("dispose",(function(){script.onload=null,script.onerror=null})),window.WebVTT=!0,this.el().parentNode.appendChild(script)}else this.ready(this.addWebVttScript_)},_proto.emulateTextTracks=function(){var _this6=this,tracks=this.textTracks(),remoteTracks=this.remoteTextTracks(),handleAddTrack=function(e){return tracks.addTrack(e.track)},handleRemoveTrack=function(e){return tracks.removeTrack(e.track)};remoteTracks.on("addtrack",handleAddTrack),remoteTracks.on("removetrack",handleRemoveTrack),this.addWebVttScript_();var updateDisplay=function(){return _this6.trigger("texttrackchange")},textTracksChanges=function(){updateDisplay();for(var i=0;i<tracks.length;i++){var track=tracks[i];track.removeEventListener("cuechange",updateDisplay),"showing"===track.mode&&track.addEventListener("cuechange",updateDisplay)}};textTracksChanges(),tracks.addEventListener("change",textTracksChanges),tracks.addEventListener("addtrack",textTracksChanges),tracks.addEventListener("removetrack",textTracksChanges),this.on("dispose",(function(){remoteTracks.off("addtrack",handleAddTrack),remoteTracks.off("removetrack",handleRemoveTrack),tracks.removeEventListener("change",textTracksChanges),tracks.removeEventListener("addtrack",textTracksChanges),tracks.removeEventListener("removetrack",textTracksChanges);for(var i=0;i<tracks.length;i++){tracks[i].removeEventListener("cuechange",updateDisplay)}}))},_proto.addTextTrack=function(kind,label,language){if(!kind)throw new Error("TextTrack kind is required but was not provided");return function(self,kind,label,language,options){void 0===options&&(options={});var tracks=self.textTracks();options.kind=kind,label&&(options.label=label),language&&(options.language=language),options.tech=self;var track=new ALL.text.TrackClass(options);return tracks.addTrack(track),track}(this,kind,label,language)},_proto.createRemoteTextTrack=function(options){var track=mergeOptions$3(options,{tech:this});return new REMOTE.remoteTextEl.TrackClass(track)},_proto.addRemoteTextTrack=function(options,manualCleanup){var _this7=this;void 0===options&&(options={});var htmlTrackElement=this.createRemoteTextTrack(options);return!0!==manualCleanup&&!1!==manualCleanup&&(log$1.warn('Calling addRemoteTextTrack without explicitly setting the "manualCleanup" parameter to `true` is deprecated and default to `false` in future version of video.js'),manualCleanup=!0),this.remoteTextTrackEls().addTrackElement_(htmlTrackElement),this.remoteTextTracks().addTrack(htmlTrackElement.track),!0!==manualCleanup&&this.ready((function(){return _this7.autoRemoteTextTracks_.addTrack(htmlTrackElement.track)})),htmlTrackElement},_proto.removeRemoteTextTrack=function(track){var trackElement=this.remoteTextTrackEls().getTrackElementByTrack_(track);this.remoteTextTrackEls().removeTrackElement_(trackElement),this.remoteTextTracks().removeTrack(track),this.autoRemoteTextTracks_.removeTrack(track)},_proto.getVideoPlaybackQuality=function(){return{}},_proto.requestPictureInPicture=function(){var PromiseClass=this.options_.Promise||window.Promise;if(PromiseClass)return PromiseClass.reject()},_proto.disablePictureInPicture=function(){return!0},_proto.setDisablePictureInPicture=function(){},_proto.requestVideoFrameCallback=function(cb){var _this8=this,id=newGUID();return!this.isReady_||this.paused()?(this.queuedHanders_.add(id),this.one("playing",(function(){_this8.queuedHanders_.has(id)&&(_this8.queuedHanders_.delete(id),cb())}))):this.requestNamedAnimationFrame(id,cb),id},_proto.cancelVideoFrameCallback=function(id){this.queuedHanders_.has(id)?this.queuedHanders_.delete(id):this.cancelNamedAnimationFrame(id)},_proto.setPoster=function(){},_proto.playsinline=function(){},_proto.setPlaysinline=function(){},_proto.overrideNativeAudioTracks=function(){},_proto.overrideNativeVideoTracks=function(){},_proto.canPlayType=function(){return""},Tech.canPlayType=function(){return""},Tech.canPlaySource=function(srcObj,options){return Tech.canPlayType(srcObj.type)},Tech.isTech=function(component){return component.prototype instanceof Tech||component instanceof Tech||component===Tech},Tech.registerTech=function(name,tech){if(Tech.techs_||(Tech.techs_={}),!Tech.isTech(tech))throw new Error("Tech "+name+" must be a Tech");if(!Tech.canPlayType)throw new Error("Techs must have a static canPlayType method on them");if(!Tech.canPlaySource)throw new Error("Techs must have a static canPlaySource method on them");return name=toTitleCase$1(name),Tech.techs_[name]=tech,Tech.techs_[toLowerCase(name)]=tech,"Tech"!==name&&Tech.defaultTechOrder_.push(name),tech},Tech.getTech=function(name){if(name)return Tech.techs_&&Tech.techs_[name]?Tech.techs_[name]:(name=toTitleCase$1(name),window&&window.videojs&&window.videojs[name]?(log$1.warn("The "+name+" tech was added to the videojs object when it should be registered using videojs.registerTech(name, tech)"),window.videojs[name]):void 0)},Tech}(Component$1);ALL.names.forEach((function(name){var props=ALL[name];Tech.prototype[props.getterName]=function(){return this[props.privateName]=this[props.privateName]||new props.ListClass,this[props.privateName]}})),Tech.prototype.featuresVolumeControl=!0,Tech.prototype.featuresMuteControl=!0,Tech.prototype.featuresFullscreenResize=!1,Tech.prototype.featuresPlaybackRate=!1,Tech.prototype.featuresProgressEvents=!1,Tech.prototype.featuresSourceset=!1,Tech.prototype.featuresTimeupdateEvents=!1,Tech.prototype.featuresNativeTextTracks=!1,Tech.prototype.featuresVideoFrameCallback=!1,Tech.withSourceHandlers=function(_Tech){_Tech.registerSourceHandler=function(handler,index){var handlers=_Tech.sourceHandlers;handlers||(handlers=_Tech.sourceHandlers=[]),void 0===index&&(index=handlers.length),handlers.splice(index,0,handler)},_Tech.canPlayType=function(type){for(var can,handlers=_Tech.sourceHandlers||[],i=0;i<handlers.length;i++)if(can=handlers[i].canPlayType(type))return can;return""},_Tech.selectSourceHandler=function(source,options){for(var handlers=_Tech.sourceHandlers||[],i=0;i<handlers.length;i++)if(handlers[i].canHandleSource(source,options))return handlers[i];return null},_Tech.canPlaySource=function(srcObj,options){var sh=_Tech.selectSourceHandler(srcObj,options);return sh?sh.canHandleSource(srcObj,options):""};["seekable","seeking","duration"].forEach((function(fnName){var originalFn=this[fnName];"function"==typeof originalFn&&(this[fnName]=function(){return this.sourceHandler_&&this.sourceHandler_[fnName]?this.sourceHandler_[fnName].apply(this.sourceHandler_,arguments):originalFn.apply(this,arguments)})}),_Tech.prototype),_Tech.prototype.setSource=function(source){var sh=_Tech.selectSourceHandler(source,this.options_);sh||(_Tech.nativeSourceHandler?sh=_Tech.nativeSourceHandler:log$1.error("No source handler found for the current source.")),this.disposeSourceHandler(),this.off("dispose",this.disposeSourceHandler_),sh!==_Tech.nativeSourceHandler&&(this.currentSource_=source),this.sourceHandler_=sh.handleSource(source,this,this.options_),this.one("dispose",this.disposeSourceHandler_)},_Tech.prototype.disposeSourceHandler=function(){this.currentSource_&&(this.clearTracks(["audio","video"]),this.currentSource_=null),this.cleanupAutoTextTracks(),this.sourceHandler_&&(this.sourceHandler_.dispose&&this.sourceHandler_.dispose(),this.sourceHandler_=null)}},Component$1.registerComponent("Tech",Tech),Tech.registerTech("Tech",Tech),Tech.defaultTechOrder_=[];var middlewares={},middlewareInstances={},TERMINATOR={};function setSource(player,src,next){player.setTimeout((function(){return setSourceHelper(src,middlewares[src.type],next,player)}),1)}function mediate(middleware,tech,method,arg){void 0===arg&&(arg=null);var callMethod="call"+toTitleCase$1(method),middlewareValue=middleware.reduce(middlewareIterator(callMethod),arg),terminated=middlewareValue===TERMINATOR,returnValue=terminated?null:tech[method](middlewareValue);return function(mws,method,value,terminated){for(var i=mws.length-1;i>=0;i--){var mw=mws[i];mw[method]&&mw[method](terminated,value)}}(middleware,method,returnValue,terminated),returnValue}var allowedGetters={buffered:1,currentTime:1,duration:1,muted:1,played:1,paused:1,seekable:1,volume:1,ended:1},allowedSetters={setCurrentTime:1,setMuted:1,setVolume:1},allowedMediators={play:1,pause:1};function middlewareIterator(method){return function(value,mw){return value===TERMINATOR?TERMINATOR:mw[method]?mw[method](value):value}}function setSourceHelper(src,middleware,next,player,acc,lastRun){void 0===src&&(src={}),void 0===middleware&&(middleware=[]),void 0===acc&&(acc=[]),void 0===lastRun&&(lastRun=!1);var _middleware=middleware,mwFactory=_middleware[0],mwrest=_middleware.slice(1);if("string"==typeof mwFactory)setSourceHelper(src,middlewares[mwFactory],next,player,acc,lastRun);else if(mwFactory){var mw=function(player,mwFactory){var mws=middlewareInstances[player.id()],mw=null;if(null==mws)return mw=mwFactory(player),middlewareInstances[player.id()]=[[mwFactory,mw]],mw;for(var i=0;i<mws.length;i++){var _mws$i=mws[i],mwf=_mws$i[0],mwi=_mws$i[1];mwf===mwFactory&&(mw=mwi)}return null===mw&&(mw=mwFactory(player),mws.push([mwFactory,mw])),mw}(player,mwFactory);if(!mw.setSource)return acc.push(mw),setSourceHelper(src,mwrest,next,player,acc,lastRun);mw.setSource(assign({},src),(function(err,_src){if(err)return setSourceHelper(src,mwrest,next,player,acc,lastRun);acc.push(mw),setSourceHelper(_src,src.type===_src.type?mwrest:middlewares[_src.type],next,player,acc,lastRun)}))}else mwrest.length?setSourceHelper(src,mwrest,next,player,acc,lastRun):lastRun?next(src,acc):setSourceHelper(src,middlewares["*"],next,player,acc,!0)}var MimetypesKind={opus:"video/ogg",ogv:"video/ogg",mp4:"video/mp4",mov:"video/mp4",m4v:"video/mp4",mkv:"video/x-matroska",m4a:"audio/mp4",mp3:"audio/mpeg",aac:"audio/aac",caf:"audio/x-caf",flac:"audio/flac",oga:"audio/ogg",wav:"audio/wav",m3u8:"application/x-mpegURL",mpd:"application/dash+xml",jpg:"image/jpeg",jpeg:"image/jpeg",gif:"image/gif",png:"image/png",svg:"image/svg+xml",webp:"image/webp"},getMimetype=function(src){void 0===src&&(src="");var ext=getFileExtension(src);return MimetypesKind[ext.toLowerCase()]||""},filterSource=function filterSource(src){if(Array.isArray(src)){var newsrc=[];src.forEach((function(srcobj){srcobj=filterSource(srcobj),Array.isArray(srcobj)?newsrc=newsrc.concat(srcobj):isObject$1(srcobj)&&newsrc.push(srcobj)})),src=newsrc}else src="string"==typeof src&&src.trim()?[fixSource({src:src})]:isObject$1(src)&&"string"==typeof src.src&&src.src&&src.src.trim()?[fixSource(src)]:[];return src};function fixSource(src){if(!src.type){var mimetype=getMimetype(src.src);mimetype&&(src.type=mimetype)}return src}var MediaLoader=function(_Component){function MediaLoader(player,options,ready){var _this,options_=mergeOptions$3({createEl:!1},options);if(_this=_Component.call(this,player,options_,ready)||this,options.playerOptions.sources&&0!==options.playerOptions.sources.length)player.src(options.playerOptions.sources);else for(var i=0,j=options.playerOptions.techOrder;i<j.length;i++){var techName=toTitleCase$1(j[i]),tech=Tech.getTech(techName);if(techName||(tech=Component$1.getComponent(techName)),tech&&tech.isSupported()){player.loadTech_(techName);break}}return _this}return inheritsLoose(MediaLoader,_Component),MediaLoader}(Component$1);Component$1.registerComponent("MediaLoader",MediaLoader);var ClickableComponent=function(_Component){function ClickableComponent(player,options){var _this;return(_this=_Component.call(this,player,options)||this).options_.controlText&&_this.controlText(_this.options_.controlText),_this.handleMouseOver_=function(e){return _this.handleMouseOver(e)},_this.handleMouseOut_=function(e){return _this.handleMouseOut(e)},_this.handleClick_=function(e){return _this.handleClick(e)},_this.handleKeyDown_=function(e){return _this.handleKeyDown(e)},_this.emitTapEvents(),_this.enable(),_this}inheritsLoose(ClickableComponent,_Component);var _proto=ClickableComponent.prototype;return _proto.createEl=function(tag,props,attributes){void 0===tag&&(tag="div"),void 0===props&&(props={}),void 0===attributes&&(attributes={}),props=assign({className:this.buildCSSClass(),tabIndex:0},props),"button"===tag&&log$1.error("Creating a ClickableComponent with an HTML element of "+tag+" is not supported; use a Button instead."),attributes=assign({role:"button"},attributes),this.tabIndex_=props.tabIndex;var el=createEl(tag,props,attributes);return el.appendChild(createEl("span",{className:"vjs-icon-placeholder"},{"aria-hidden":!0})),this.createControlTextEl(el),el},_proto.dispose=function(){this.controlTextEl_=null,_Component.prototype.dispose.call(this)},_proto.createControlTextEl=function(el){return this.controlTextEl_=createEl("span",{className:"vjs-control-text"},{"aria-live":"polite"}),el&&el.appendChild(this.controlTextEl_),this.controlText(this.controlText_,el),this.controlTextEl_},_proto.controlText=function(text,el){if(void 0===el&&(el=this.el()),void 0===text)return this.controlText_||"Need Text";var localizedText=this.localize(text);this.controlText_=text,textContent(this.controlTextEl_,localizedText),this.nonIconControl||this.player_.options_.noUITitleAttributes||el.setAttribute("title",localizedText)},_proto.buildCSSClass=function(){return"vjs-control vjs-button "+_Component.prototype.buildCSSClass.call(this)},_proto.enable=function(){this.enabled_||(this.enabled_=!0,this.removeClass("vjs-disabled"),this.el_.setAttribute("aria-disabled","false"),void 0!==this.tabIndex_&&this.el_.setAttribute("tabIndex",this.tabIndex_),this.on(["tap","click"],this.handleClick_),this.on("keydown",this.handleKeyDown_))},_proto.disable=function(){this.enabled_=!1,this.addClass("vjs-disabled"),this.el_.setAttribute("aria-disabled","true"),void 0!==this.tabIndex_&&this.el_.removeAttribute("tabIndex"),this.off("mouseover",this.handleMouseOver_),this.off("mouseout",this.handleMouseOut_),this.off(["tap","click"],this.handleClick_),this.off("keydown",this.handleKeyDown_)},_proto.handleLanguagechange=function(){this.controlText(this.controlText_)},_proto.handleClick=function(event){this.options_.clickHandler&&this.options_.clickHandler.call(this,arguments)},_proto.handleKeyDown=function(event){keycode.isEventKey(event,"Space")||keycode.isEventKey(event,"Enter")?(event.preventDefault(),event.stopPropagation(),this.trigger("click")):_Component.prototype.handleKeyDown.call(this,event)},ClickableComponent}(Component$1);Component$1.registerComponent("ClickableComponent",ClickableComponent);var PosterImage=function(_ClickableComponent){function PosterImage(player,options){var _this;return(_this=_ClickableComponent.call(this,player,options)||this).update(),_this.update_=function(e){return _this.update(e)},player.on("posterchange",_this.update_),_this}inheritsLoose(PosterImage,_ClickableComponent);var _proto=PosterImage.prototype;return _proto.dispose=function(){this.player().off("posterchange",this.update_),_ClickableComponent.prototype.dispose.call(this)},_proto.createEl=function(){return createEl("div",{className:"vjs-poster",tabIndex:-1})},_proto.update=function(event){var url=this.player().poster();this.setSrc(url),url?this.show():this.hide()},_proto.setSrc=function(url){var backgroundImage="";url&&(backgroundImage='url("'+url+'")'),this.el_.style.backgroundImage=backgroundImage},_proto.handleClick=function(event){if(this.player_.controls()){var sourceIsEncrypted=this.player_.usingPlugin("eme")&&this.player_.eme.sessions&&this.player_.eme.sessions.length>0;!this.player_.tech(!0)||(IE_VERSION||IS_EDGE)&&sourceIsEncrypted||this.player_.tech(!0).focus(),this.player_.paused()?silencePromise(this.player_.play()):this.player_.pause()}},PosterImage}(ClickableComponent);Component$1.registerComponent("PosterImage",PosterImage);var fontMap={monospace:"monospace",sansSerif:"sans-serif",serif:"serif",monospaceSansSerif:'"Andale Mono", "Lucida Console", monospace',monospaceSerif:'"Courier New", monospace',proportionalSansSerif:"sans-serif",proportionalSerif:"serif",casual:'"Comic Sans MS", Impact, fantasy',script:'"Monotype Corsiva", cursive',smallcaps:'"Andale Mono", "Lucida Console", monospace, sans-serif'};function constructColor(color,opacity){var hex;if(4===color.length)hex=color[1]+color[1]+color[2]+color[2]+color[3]+color[3];else{if(7!==color.length)throw new Error("Invalid color code provided, "+color+"; must be formatted as e.g. #f0e or #f604e2.");hex=color.slice(1)}return"rgba("+parseInt(hex.slice(0,2),16)+","+parseInt(hex.slice(2,4),16)+","+parseInt(hex.slice(4,6),16)+","+opacity+")"}function tryUpdateStyle(el,style,rule){try{el.style[style]=rule}catch(e){return}}var TextTrackDisplay=function(_Component){function TextTrackDisplay(player,options,ready){var _this;_this=_Component.call(this,player,options,ready)||this;var updateDisplayHandler=function(e){return _this.updateDisplay(e)};return player.on("loadstart",(function(e){return _this.toggleDisplay(e)})),player.on("texttrackchange",updateDisplayHandler),player.on("loadedmetadata",(function(e){return _this.preselectTrack(e)})),player.ready(bind(assertThisInitialized(_this),(function(){if(player.tech_&&player.tech_.featuresNativeTextTracks)this.hide();else{player.on("fullscreenchange",updateDisplayHandler),player.on("playerresize",updateDisplayHandler),window.addEventListener("orientationchange",updateDisplayHandler),player.on("dispose",(function(){return window.removeEventListener("orientationchange",updateDisplayHandler)}));for(var tracks=this.options_.playerOptions.tracks||[],i=0;i<tracks.length;i++)this.player_.addRemoteTextTrack(tracks[i],!0);this.preselectTrack()}}))),_this}inheritsLoose(TextTrackDisplay,_Component);var _proto=TextTrackDisplay.prototype;return _proto.preselectTrack=function(){for(var firstDesc,firstCaptions,preferredTrack,modes={captions:1,subtitles:1},trackList=this.player_.textTracks(),userPref=this.player_.cache_.selectedLanguage,i=0;i<trackList.length;i++){var track=trackList[i];userPref&&userPref.enabled&&userPref.language&&userPref.language===track.language&&track.kind in modes?track.kind===userPref.kind?preferredTrack=track:preferredTrack||(preferredTrack=track):userPref&&!userPref.enabled?(preferredTrack=null,firstDesc=null,firstCaptions=null):track.default&&("descriptions"!==track.kind||firstDesc?track.kind in modes&&!firstCaptions&&(firstCaptions=track):firstDesc=track)}preferredTrack?preferredTrack.mode="showing":firstCaptions?firstCaptions.mode="showing":firstDesc&&(firstDesc.mode="showing")},_proto.toggleDisplay=function(){this.player_.tech_&&this.player_.tech_.featuresNativeTextTracks?this.hide():this.show()},_proto.createEl=function(){return _Component.prototype.createEl.call(this,"div",{className:"vjs-text-track-display"},{translate:"yes","aria-live":"off","aria-atomic":"true"})},_proto.clearDisplay=function(){"function"==typeof window.WebVTT&&window.WebVTT.processCues(window,[],this.el_)},_proto.updateDisplay=function(){var tracks=this.player_.textTracks(),allowMultipleShowingTracks=this.options_.allowMultipleShowingTracks;if(this.clearDisplay(),allowMultipleShowingTracks){for(var showingTracks=[],_i=0;_i<tracks.length;++_i){var track=tracks[_i];"showing"===track.mode&&showingTracks.push(track)}this.updateForTrack(showingTracks)}else{for(var descriptionsTrack=null,captionsSubtitlesTrack=null,i=tracks.length;i--;){var _track=tracks[i];"showing"===_track.mode&&("descriptions"===_track.kind?descriptionsTrack=_track:captionsSubtitlesTrack=_track)}captionsSubtitlesTrack?("off"!==this.getAttribute("aria-live")&&this.setAttribute("aria-live","off"),this.updateForTrack(captionsSubtitlesTrack)):descriptionsTrack&&("assertive"!==this.getAttribute("aria-live")&&this.setAttribute("aria-live","assertive"),this.updateForTrack(descriptionsTrack))}},_proto.updateDisplayState=function(track){for(var overrides=this.player_.textTrackSettings.getValues(),cues=track.activeCues,i=cues.length;i--;){var cue=cues[i];if(cue){var cueDiv=cue.displayState;if(overrides.color&&(cueDiv.firstChild.style.color=overrides.color),overrides.textOpacity&&tryUpdateStyle(cueDiv.firstChild,"color",constructColor(overrides.color||"#fff",overrides.textOpacity)),overrides.backgroundColor&&(cueDiv.firstChild.style.backgroundColor=overrides.backgroundColor),overrides.backgroundOpacity&&tryUpdateStyle(cueDiv.firstChild,"backgroundColor",constructColor(overrides.backgroundColor||"#000",overrides.backgroundOpacity)),overrides.windowColor&&(overrides.windowOpacity?tryUpdateStyle(cueDiv,"backgroundColor",constructColor(overrides.windowColor,overrides.windowOpacity)):cueDiv.style.backgroundColor=overrides.windowColor),overrides.edgeStyle&&("dropshadow"===overrides.edgeStyle?cueDiv.firstChild.style.textShadow="2px 2px 3px #222, 2px 2px 4px #222, 2px 2px 5px #222":"raised"===overrides.edgeStyle?cueDiv.firstChild.style.textShadow="1px 1px #222, 2px 2px #222, 3px 3px #222":"depressed"===overrides.edgeStyle?cueDiv.firstChild.style.textShadow="1px 1px #ccc, 0 1px #ccc, -1px -1px #222, 0 -1px #222":"uniform"===overrides.edgeStyle&&(cueDiv.firstChild.style.textShadow="0 0 4px #222, 0 0 4px #222, 0 0 4px #222, 0 0 4px #222")),overrides.fontPercent&&1!==overrides.fontPercent){var fontSize=window.parseFloat(cueDiv.style.fontSize);cueDiv.style.fontSize=fontSize*overrides.fontPercent+"px",cueDiv.style.height="auto",cueDiv.style.top="auto"}overrides.fontFamily&&"default"!==overrides.fontFamily&&("small-caps"===overrides.fontFamily?cueDiv.firstChild.style.fontVariant="small-caps":cueDiv.firstChild.style.fontFamily=fontMap[overrides.fontFamily])}}},_proto.updateForTrack=function(tracks){if(Array.isArray(tracks)||(tracks=[tracks]),"function"==typeof window.WebVTT&&!tracks.every((function(track){return!track.activeCues}))){for(var cues=[],i=0;i<tracks.length;++i)for(var track=tracks[i],j=0;j<track.activeCues.length;++j)cues.push(track.activeCues[j]);window.WebVTT.processCues(window,cues,this.el_);for(var _i2=0;_i2<tracks.length;++_i2){for(var _track2=tracks[_i2],_j=0;_j<_track2.activeCues.length;++_j){var cueEl=_track2.activeCues[_j].displayState;addClass(cueEl,"vjs-text-track-cue"),addClass(cueEl,"vjs-text-track-cue-"+(_track2.language?_track2.language:_i2)),_track2.language&&setAttribute(cueEl,"lang",_track2.language)}this.player_.textTrackSettings&&this.updateDisplayState(_track2)}}},TextTrackDisplay}(Component$1);Component$1.registerComponent("TextTrackDisplay",TextTrackDisplay);var LoadingSpinner=function(_Component){function LoadingSpinner(){return _Component.apply(this,arguments)||this}return inheritsLoose(LoadingSpinner,_Component),LoadingSpinner.prototype.createEl=function(){var isAudio=this.player_.isAudio(),playerType=this.localize(isAudio?"Audio Player":"Video Player"),controlText=createEl("span",{className:"vjs-control-text",textContent:this.localize("{1} is loading.",[playerType])}),el=_Component.prototype.createEl.call(this,"div",{className:"vjs-loading-spinner",dir:"ltr"});return el.appendChild(controlText),el},LoadingSpinner}(Component$1);Component$1.registerComponent("LoadingSpinner",LoadingSpinner);var Button=function(_ClickableComponent){function Button(){return _ClickableComponent.apply(this,arguments)||this}inheritsLoose(Button,_ClickableComponent);var _proto=Button.prototype;return _proto.createEl=function(tag,props,attributes){void 0===props&&(props={}),void 0===attributes&&(attributes={});var el=createEl("button",props=assign({className:this.buildCSSClass()},props),attributes=assign({type:"button"},attributes));return el.appendChild(createEl("span",{className:"vjs-icon-placeholder"},{"aria-hidden":!0})),this.createControlTextEl(el),el},_proto.addChild=function(child,options){void 0===options&&(options={});var className=this.constructor.name;return log$1.warn("Adding an actionable (user controllable) child to a Button ("+className+") is not supported; use a ClickableComponent instead."),Component$1.prototype.addChild.call(this,child,options)},_proto.enable=function(){_ClickableComponent.prototype.enable.call(this),this.el_.removeAttribute("disabled")},_proto.disable=function(){_ClickableComponent.prototype.disable.call(this),this.el_.setAttribute("disabled","disabled")},_proto.handleKeyDown=function(event){keycode.isEventKey(event,"Space")||keycode.isEventKey(event,"Enter")?event.stopPropagation():_ClickableComponent.prototype.handleKeyDown.call(this,event)},Button}(ClickableComponent);Component$1.registerComponent("Button",Button);var BigPlayButton=function(_Button){function BigPlayButton(player,options){var _this;return(_this=_Button.call(this,player,options)||this).mouseused_=!1,_this.on("mousedown",(function(e){return _this.handleMouseDown(e)})),_this}inheritsLoose(BigPlayButton,_Button);var _proto=BigPlayButton.prototype;return _proto.buildCSSClass=function(){return"vjs-big-play-button"},_proto.handleClick=function(event){var playPromise=this.player_.play();if(this.mouseused_&&event.clientX&&event.clientY){var sourceIsEncrypted=this.player_.usingPlugin("eme")&&this.player_.eme.sessions&&this.player_.eme.sessions.length>0;return silencePromise(playPromise),void(!this.player_.tech(!0)||(IE_VERSION||IS_EDGE)&&sourceIsEncrypted||this.player_.tech(!0).focus())}var cb=this.player_.getChild("controlBar"),playToggle=cb&&cb.getChild("playToggle");if(playToggle){var playFocus=function(){return playToggle.focus()};isPromise(playPromise)?playPromise.then(playFocus,(function(){})):this.setTimeout(playFocus,1)}else this.player_.tech(!0).focus()},_proto.handleKeyDown=function(event){this.mouseused_=!1,_Button.prototype.handleKeyDown.call(this,event)},_proto.handleMouseDown=function(event){this.mouseused_=!0},BigPlayButton}(Button);BigPlayButton.prototype.controlText_="Play Video",Component$1.registerComponent("BigPlayButton",BigPlayButton);var CloseButton=function(_Button){function CloseButton(player,options){var _this;return(_this=_Button.call(this,player,options)||this).controlText(options&&options.controlText||_this.localize("Close")),_this}inheritsLoose(CloseButton,_Button);var _proto=CloseButton.prototype;return _proto.buildCSSClass=function(){return"vjs-close-button "+_Button.prototype.buildCSSClass.call(this)},_proto.handleClick=function(event){this.trigger({type:"close",bubbles:!1})},_proto.handleKeyDown=function(event){keycode.isEventKey(event,"Esc")?(event.preventDefault(),event.stopPropagation(),this.trigger("click")):_Button.prototype.handleKeyDown.call(this,event)},CloseButton}(Button);Component$1.registerComponent("CloseButton",CloseButton);var PlayToggle=function(_Button){function PlayToggle(player,options){var _this;return void 0===options&&(options={}),_this=_Button.call(this,player,options)||this,options.replay=void 0===options.replay||options.replay,_this.on(player,"play",(function(e){return _this.handlePlay(e)})),_this.on(player,"pause",(function(e){return _this.handlePause(e)})),options.replay&&_this.on(player,"ended",(function(e){return _this.handleEnded(e)})),_this}inheritsLoose(PlayToggle,_Button);var _proto=PlayToggle.prototype;return _proto.buildCSSClass=function(){return"vjs-play-control "+_Button.prototype.buildCSSClass.call(this)},_proto.handleClick=function(event){this.player_.paused()?silencePromise(this.player_.play()):this.player_.pause()},_proto.handleSeeked=function(event){this.removeClass("vjs-ended"),this.player_.paused()?this.handlePause(event):this.handlePlay(event)},_proto.handlePlay=function(event){this.removeClass("vjs-ended"),this.removeClass("vjs-paused"),this.addClass("vjs-playing"),this.controlText("Pause")},_proto.handlePause=function(event){this.removeClass("vjs-playing"),this.addClass("vjs-paused"),this.controlText("Play")},_proto.handleEnded=function(event){var _this2=this;this.removeClass("vjs-playing"),this.addClass("vjs-ended"),this.controlText("Replay"),this.one(this.player_,"seeked",(function(e){return _this2.handleSeeked(e)}))},PlayToggle}(Button);PlayToggle.prototype.controlText_="Play",Component$1.registerComponent("PlayToggle",PlayToggle);var defaultImplementation=function(seconds,guide){seconds=seconds<0?0:seconds;var s=Math.floor(seconds%60),m=Math.floor(seconds/60%60),h=Math.floor(seconds/3600),gm=Math.floor(guide/60%60),gh=Math.floor(guide/3600);return(isNaN(seconds)||seconds===1/0)&&(h=m=s="-"),(h=h>0||gh>0?h+":":"")+(m=((h||gm>=10)&&m<10?"0"+m:m)+":")+(s=s<10?"0"+s:s)},implementation=defaultImplementation;function formatTime(seconds,guide){return void 0===guide&&(guide=seconds),implementation(seconds,guide)}var TimeDisplay=function(_Component){function TimeDisplay(player,options){var _this;return(_this=_Component.call(this,player,options)||this).on(player,["timeupdate","ended"],(function(e){return _this.updateContent(e)})),_this.updateTextNode_(),_this}inheritsLoose(TimeDisplay,_Component);var _proto=TimeDisplay.prototype;return _proto.createEl=function(){var className=this.buildCSSClass(),el=_Component.prototype.createEl.call(this,"div",{className:className+" vjs-time-control vjs-control"}),span=createEl("span",{className:"vjs-control-text",textContent:this.localize(this.labelText_)+" "},{role:"presentation"});return el.appendChild(span),this.contentEl_=createEl("span",{className:className+"-display"},{"aria-live":"off",role:"presentation"}),el.appendChild(this.contentEl_),el},_proto.dispose=function(){this.contentEl_=null,this.textNode_=null,_Component.prototype.dispose.call(this)},_proto.updateTextNode_=function(time){var _this2=this;void 0===time&&(time=0),time=formatTime(time),this.formattedTime_!==time&&(this.formattedTime_=time,this.requestNamedAnimationFrame("TimeDisplay#updateTextNode_",(function(){if(_this2.contentEl_){var oldNode=_this2.textNode_;oldNode&&_this2.contentEl_.firstChild!==oldNode&&(oldNode=null,log$1.warn("TimeDisplay#updateTextnode_: Prevented replacement of text node element since it was no longer a child of this node. Appending a new node instead.")),_this2.textNode_=document.createTextNode(_this2.formattedTime_),_this2.textNode_&&(oldNode?_this2.contentEl_.replaceChild(_this2.textNode_,oldNode):_this2.contentEl_.appendChild(_this2.textNode_))}})))},_proto.updateContent=function(event){},TimeDisplay}(Component$1);TimeDisplay.prototype.labelText_="Time",TimeDisplay.prototype.controlText_="Time",Component$1.registerComponent("TimeDisplay",TimeDisplay);var CurrentTimeDisplay=function(_TimeDisplay){function CurrentTimeDisplay(){return _TimeDisplay.apply(this,arguments)||this}inheritsLoose(CurrentTimeDisplay,_TimeDisplay);var _proto=CurrentTimeDisplay.prototype;return _proto.buildCSSClass=function(){return"vjs-current-time"},_proto.updateContent=function(event){var time;time=this.player_.ended()?this.player_.duration():this.player_.scrubbing()?this.player_.getCache().currentTime:this.player_.currentTime(),this.updateTextNode_(time)},CurrentTimeDisplay}(TimeDisplay);CurrentTimeDisplay.prototype.labelText_="Current Time",CurrentTimeDisplay.prototype.controlText_="Current Time",Component$1.registerComponent("CurrentTimeDisplay",CurrentTimeDisplay);var DurationDisplay=function(_TimeDisplay){function DurationDisplay(player,options){var _this,updateContent=function(e){return _this.updateContent(e)};return(_this=_TimeDisplay.call(this,player,options)||this).on(player,"durationchange",updateContent),_this.on(player,"loadstart",updateContent),_this.on(player,"loadedmetadata",updateContent),_this}inheritsLoose(DurationDisplay,_TimeDisplay);var _proto=DurationDisplay.prototype;return _proto.buildCSSClass=function(){return"vjs-duration"},_proto.updateContent=function(event){var duration=this.player_.duration();this.updateTextNode_(duration)},DurationDisplay}(TimeDisplay);DurationDisplay.prototype.labelText_="Duration",DurationDisplay.prototype.controlText_="Duration",Component$1.registerComponent("DurationDisplay",DurationDisplay);var TimeDivider=function(_Component){function TimeDivider(){return _Component.apply(this,arguments)||this}return inheritsLoose(TimeDivider,_Component),TimeDivider.prototype.createEl=function(){var el=_Component.prototype.createEl.call(this,"div",{className:"vjs-time-control vjs-time-divider"},{"aria-hidden":!0}),div=_Component.prototype.createEl.call(this,"div"),span=_Component.prototype.createEl.call(this,"span",{textContent:"/"});return div.appendChild(span),el.appendChild(div),el},TimeDivider}(Component$1);Component$1.registerComponent("TimeDivider",TimeDivider);var RemainingTimeDisplay=function(_TimeDisplay){function RemainingTimeDisplay(player,options){var _this;return(_this=_TimeDisplay.call(this,player,options)||this).on(player,"durationchange",(function(e){return _this.updateContent(e)})),_this}inheritsLoose(RemainingTimeDisplay,_TimeDisplay);var _proto=RemainingTimeDisplay.prototype;return _proto.buildCSSClass=function(){return"vjs-remaining-time"},_proto.createEl=function(){var el=_TimeDisplay.prototype.createEl.call(this);return!1!==this.options_.displayNegative&&el.insertBefore(createEl("span",{},{"aria-hidden":!0},"-"),this.contentEl_),el},_proto.updateContent=function(event){var time;"number"==typeof this.player_.duration()&&(time=this.player_.ended()?0:this.player_.remainingTimeDisplay?this.player_.remainingTimeDisplay():this.player_.remainingTime(),this.updateTextNode_(time))},RemainingTimeDisplay}(TimeDisplay);RemainingTimeDisplay.prototype.labelText_="Remaining Time",RemainingTimeDisplay.prototype.controlText_="Remaining Time",Component$1.registerComponent("RemainingTimeDisplay",RemainingTimeDisplay);var LiveDisplay=function(_Component){function LiveDisplay(player,options){var _this;return(_this=_Component.call(this,player,options)||this).updateShowing(),_this.on(_this.player(),"durationchange",(function(e){return _this.updateShowing(e)})),_this}inheritsLoose(LiveDisplay,_Component);var _proto=LiveDisplay.prototype;return _proto.createEl=function(){var el=_Component.prototype.createEl.call(this,"div",{className:"vjs-live-control vjs-control"});return this.contentEl_=createEl("div",{className:"vjs-live-display"},{"aria-live":"off"}),this.contentEl_.appendChild(createEl("span",{className:"vjs-control-text",textContent:this.localize("Stream Type")+" "})),this.contentEl_.appendChild(document.createTextNode(this.localize("LIVE"))),el.appendChild(this.contentEl_),el},_proto.dispose=function(){this.contentEl_=null,_Component.prototype.dispose.call(this)},_proto.updateShowing=function(event){this.player().duration()===1/0?this.show():this.hide()},LiveDisplay}(Component$1);Component$1.registerComponent("LiveDisplay",LiveDisplay);var SeekToLive=function(_Button){function SeekToLive(player,options){var _this;return(_this=_Button.call(this,player,options)||this).updateLiveEdgeStatus(),_this.player_.liveTracker&&(_this.updateLiveEdgeStatusHandler_=function(e){return _this.updateLiveEdgeStatus(e)},_this.on(_this.player_.liveTracker,"liveedgechange",_this.updateLiveEdgeStatusHandler_)),_this}inheritsLoose(SeekToLive,_Button);var _proto=SeekToLive.prototype;return _proto.createEl=function(){var el=_Button.prototype.createEl.call(this,"button",{className:"vjs-seek-to-live-control vjs-control"});return this.textEl_=createEl("span",{className:"vjs-seek-to-live-text",textContent:this.localize("LIVE")},{"aria-hidden":"true"}),el.appendChild(this.textEl_),el},_proto.updateLiveEdgeStatus=function(){!this.player_.liveTracker||this.player_.liveTracker.atLiveEdge()?(this.setAttribute("aria-disabled",!0),this.addClass("vjs-at-live-edge"),this.controlText("Seek to live, currently playing live")):(this.setAttribute("aria-disabled",!1),this.removeClass("vjs-at-live-edge"),this.controlText("Seek to live, currently behind live"))},_proto.handleClick=function(){this.player_.liveTracker.seekToLiveEdge()},_proto.dispose=function(){this.player_.liveTracker&&this.off(this.player_.liveTracker,"liveedgechange",this.updateLiveEdgeStatusHandler_),this.textEl_=null,_Button.prototype.dispose.call(this)},SeekToLive}(Button);SeekToLive.prototype.controlText_="Seek to live, currently playing live",Component$1.registerComponent("SeekToLive",SeekToLive);var clamp=function(number,min,max){return number=Number(number),Math.min(max,Math.max(min,isNaN(number)?min:number))},Slider=function(_Component){function Slider(player,options){var _this;return(_this=_Component.call(this,player,options)||this).handleMouseDown_=function(e){return _this.handleMouseDown(e)},_this.handleMouseUp_=function(e){return _this.handleMouseUp(e)},_this.handleKeyDown_=function(e){return _this.handleKeyDown(e)},_this.handleClick_=function(e){return _this.handleClick(e)},_this.handleMouseMove_=function(e){return _this.handleMouseMove(e)},_this.update_=function(e){return _this.update(e)},_this.bar=_this.getChild(_this.options_.barName),_this.vertical(!!_this.options_.vertical),_this.enable(),_this}inheritsLoose(Slider,_Component);var _proto=Slider.prototype;return _proto.enabled=function(){return this.enabled_},_proto.enable=function(){this.enabled()||(this.on("mousedown",this.handleMouseDown_),this.on("touchstart",this.handleMouseDown_),this.on("keydown",this.handleKeyDown_),this.on("click",this.handleClick_),this.on(this.player_,"controlsvisible",this.update),this.playerEvent&&this.on(this.player_,this.playerEvent,this.update),this.removeClass("disabled"),this.setAttribute("tabindex",0),this.enabled_=!0)},_proto.disable=function(){if(this.enabled()){var doc=this.bar.el_.ownerDocument;this.off("mousedown",this.handleMouseDown_),this.off("touchstart",this.handleMouseDown_),this.off("keydown",this.handleKeyDown_),this.off("click",this.handleClick_),this.off(this.player_,"controlsvisible",this.update_),this.off(doc,"mousemove",this.handleMouseMove_),this.off(doc,"mouseup",this.handleMouseUp_),this.off(doc,"touchmove",this.handleMouseMove_),this.off(doc,"touchend",this.handleMouseUp_),this.removeAttribute("tabindex"),this.addClass("disabled"),this.playerEvent&&this.off(this.player_,this.playerEvent,this.update),this.enabled_=!1}},_proto.createEl=function(type,props,attributes){return void 0===props&&(props={}),void 0===attributes&&(attributes={}),props.className=props.className+" vjs-slider",props=assign({tabIndex:0},props),attributes=assign({role:"slider","aria-valuenow":0,"aria-valuemin":0,"aria-valuemax":100,tabIndex:0},attributes),_Component.prototype.createEl.call(this,type,props,attributes)},_proto.handleMouseDown=function(event){var doc=this.bar.el_.ownerDocument;"mousedown"===event.type&&event.preventDefault(),"touchstart"!==event.type||IS_CHROME||event.preventDefault(),blockTextSelection(),this.addClass("vjs-sliding"),this.trigger("slideractive"),this.on(doc,"mousemove",this.handleMouseMove_),this.on(doc,"mouseup",this.handleMouseUp_),this.on(doc,"touchmove",this.handleMouseMove_),this.on(doc,"touchend",this.handleMouseUp_),this.handleMouseMove(event,!0)},_proto.handleMouseMove=function(event){},_proto.handleMouseUp=function(){var doc=this.bar.el_.ownerDocument;unblockTextSelection(),this.removeClass("vjs-sliding"),this.trigger("sliderinactive"),this.off(doc,"mousemove",this.handleMouseMove_),this.off(doc,"mouseup",this.handleMouseUp_),this.off(doc,"touchmove",this.handleMouseMove_),this.off(doc,"touchend",this.handleMouseUp_),this.update()},_proto.update=function(){var _this2=this;if(this.el_&&this.bar){var progress=this.getProgress();return progress===this.progress_||(this.progress_=progress,this.requestNamedAnimationFrame("Slider#update",(function(){var sizeKey=_this2.vertical()?"height":"width";_this2.bar.el().style[sizeKey]=(100*progress).toFixed(2)+"%"}))),progress}},_proto.getProgress=function(){return Number(clamp(this.getPercent(),0,1).toFixed(4))},_proto.calculateDistance=function(event){var position=getPointerPosition(this.el_,event);return this.vertical()?position.y:position.x},_proto.handleKeyDown=function(event){keycode.isEventKey(event,"Left")||keycode.isEventKey(event,"Down")?(event.preventDefault(),event.stopPropagation(),this.stepBack()):keycode.isEventKey(event,"Right")||keycode.isEventKey(event,"Up")?(event.preventDefault(),event.stopPropagation(),this.stepForward()):_Component.prototype.handleKeyDown.call(this,event)},_proto.handleClick=function(event){event.stopPropagation(),event.preventDefault()},_proto.vertical=function(bool){if(void 0===bool)return this.vertical_||!1;this.vertical_=!!bool,this.vertical_?this.addClass("vjs-slider-vertical"):this.addClass("vjs-slider-horizontal")},Slider}(Component$1);Component$1.registerComponent("Slider",Slider);var percentify=function(time,end){return clamp(time/end*100,0,100).toFixed(2)+"%"},LoadProgressBar=function(_Component){function LoadProgressBar(player,options){var _this;return(_this=_Component.call(this,player,options)||this).partEls_=[],_this.on(player,"progress",(function(e){return _this.update(e)})),_this}inheritsLoose(LoadProgressBar,_Component);var _proto=LoadProgressBar.prototype;return _proto.createEl=function(){var el=_Component.prototype.createEl.call(this,"div",{className:"vjs-load-progress"}),wrapper=createEl("span",{className:"vjs-control-text"}),loadedText=createEl("span",{textContent:this.localize("Loaded")}),separator=document.createTextNode(": ");return this.percentageEl_=createEl("span",{className:"vjs-control-text-loaded-percentage",textContent:"0%"}),el.appendChild(wrapper),wrapper.appendChild(loadedText),wrapper.appendChild(separator),wrapper.appendChild(this.percentageEl_),el},_proto.dispose=function(){this.partEls_=null,this.percentageEl_=null,_Component.prototype.dispose.call(this)},_proto.update=function(event){var _this2=this;this.requestNamedAnimationFrame("LoadProgressBar#update",(function(){var liveTracker=_this2.player_.liveTracker,buffered=_this2.player_.buffered(),duration=liveTracker&&liveTracker.isLive()?liveTracker.seekableEnd():_this2.player_.duration(),bufferedEnd=_this2.player_.bufferedEnd(),children=_this2.partEls_,percent=percentify(bufferedEnd,duration);_this2.percent_!==percent&&(_this2.el_.style.width=percent,textContent(_this2.percentageEl_,percent),_this2.percent_=percent);for(var i=0;i<buffered.length;i++){var start=buffered.start(i),end=buffered.end(i),part=children[i];part||(part=_this2.el_.appendChild(createEl()),children[i]=part),part.dataset.start===start&&part.dataset.end===end||(part.dataset.start=start,part.dataset.end=end,part.style.left=percentify(start,bufferedEnd),part.style.width=percentify(end-start,bufferedEnd))}for(var _i=children.length;_i>buffered.length;_i--)_this2.el_.removeChild(children[_i-1]);children.length=buffered.length}))},LoadProgressBar}(Component$1);Component$1.registerComponent("LoadProgressBar",LoadProgressBar);var TimeTooltip=function(_Component){function TimeTooltip(player,options){var _this;return(_this=_Component.call(this,player,options)||this).update=throttle(bind(assertThisInitialized(_this),_this.update),30),_this}inheritsLoose(TimeTooltip,_Component);var _proto=TimeTooltip.prototype;return _proto.createEl=function(){return _Component.prototype.createEl.call(this,"div",{className:"vjs-time-tooltip"},{"aria-hidden":"true"})},_proto.update=function(seekBarRect,seekBarPoint,content){var tooltipRect=findPosition(this.el_),playerRect=getBoundingClientRect(this.player_.el()),seekBarPointPx=seekBarRect.width*seekBarPoint;if(playerRect&&tooltipRect){var spaceLeftOfPoint=seekBarRect.left-playerRect.left+seekBarPointPx,spaceRightOfPoint=seekBarRect.width-seekBarPointPx+(playerRect.right-seekBarRect.right),pullTooltipBy=tooltipRect.width/2;spaceLeftOfPoint<pullTooltipBy?pullTooltipBy+=pullTooltipBy-spaceLeftOfPoint:spaceRightOfPoint<pullTooltipBy&&(pullTooltipBy=spaceRightOfPoint),pullTooltipBy<0?pullTooltipBy=0:pullTooltipBy>tooltipRect.width&&(pullTooltipBy=tooltipRect.width),pullTooltipBy=Math.round(pullTooltipBy),this.el_.style.right="-"+pullTooltipBy+"px",this.write(content)}},_proto.write=function(content){textContent(this.el_,content)},_proto.updateTime=function(seekBarRect,seekBarPoint,time,cb){var _this2=this;this.requestNamedAnimationFrame("TimeTooltip#updateTime",(function(){var content,duration=_this2.player_.duration();if(_this2.player_.liveTracker&&_this2.player_.liveTracker.isLive()){var liveWindow=_this2.player_.liveTracker.liveWindow(),secondsBehind=liveWindow-seekBarPoint*liveWindow;content=(secondsBehind<1?"":"-")+formatTime(secondsBehind,liveWindow)}else content=formatTime(time,duration);_this2.update(seekBarRect,seekBarPoint,content),cb&&cb()}))},TimeTooltip}(Component$1);Component$1.registerComponent("TimeTooltip",TimeTooltip);var PlayProgressBar=function(_Component){function PlayProgressBar(player,options){var _this;return(_this=_Component.call(this,player,options)||this).update=throttle(bind(assertThisInitialized(_this),_this.update),30),_this}inheritsLoose(PlayProgressBar,_Component);var _proto=PlayProgressBar.prototype;return _proto.createEl=function(){return _Component.prototype.createEl.call(this,"div",{className:"vjs-play-progress vjs-slider-bar"},{"aria-hidden":"true"})},_proto.update=function(seekBarRect,seekBarPoint){var timeTooltip=this.getChild("timeTooltip");if(timeTooltip){var time=this.player_.scrubbing()?this.player_.getCache().currentTime:this.player_.currentTime();timeTooltip.updateTime(seekBarRect,seekBarPoint,time)}},PlayProgressBar}(Component$1);PlayProgressBar.prototype.options_={children:[]},IS_IOS||IS_ANDROID||PlayProgressBar.prototype.options_.children.push("timeTooltip"),Component$1.registerComponent("PlayProgressBar",PlayProgressBar);var MouseTimeDisplay=function(_Component){function MouseTimeDisplay(player,options){var _this;return(_this=_Component.call(this,player,options)||this).update=throttle(bind(assertThisInitialized(_this),_this.update),30),_this}inheritsLoose(MouseTimeDisplay,_Component);var _proto=MouseTimeDisplay.prototype;return _proto.createEl=function(){return _Component.prototype.createEl.call(this,"div",{className:"vjs-mouse-display"})},_proto.update=function(seekBarRect,seekBarPoint){var _this2=this,time=seekBarPoint*this.player_.duration();this.getChild("timeTooltip").updateTime(seekBarRect,seekBarPoint,time,(function(){_this2.el_.style.left=seekBarRect.width*seekBarPoint+"px"}))},MouseTimeDisplay}(Component$1);MouseTimeDisplay.prototype.options_={children:["timeTooltip"]},Component$1.registerComponent("MouseTimeDisplay",MouseTimeDisplay);var SeekBar=function(_Slider){function SeekBar(player,options){var _this;return(_this=_Slider.call(this,player,options)||this).setEventHandlers_(),_this}inheritsLoose(SeekBar,_Slider);var _proto=SeekBar.prototype;return _proto.setEventHandlers_=function(){var _this2=this;this.update_=bind(this,this.update),this.update=throttle(this.update_,30),this.on(this.player_,["ended","durationchange","timeupdate"],this.update),this.player_.liveTracker&&this.on(this.player_.liveTracker,"liveedgechange",this.update),this.updateInterval=null,this.enableIntervalHandler_=function(e){return _this2.enableInterval_(e)},this.disableIntervalHandler_=function(e){return _this2.disableInterval_(e)},this.on(this.player_,["playing"],this.enableIntervalHandler_),this.on(this.player_,["ended","pause","waiting"],this.disableIntervalHandler_),"hidden"in document&&"visibilityState"in document&&this.on(document,"visibilitychange",this.toggleVisibility_)},_proto.toggleVisibility_=function(e){"hidden"===document.visibilityState?(this.cancelNamedAnimationFrame("SeekBar#update"),this.cancelNamedAnimationFrame("Slider#update"),this.disableInterval_(e)):(this.player_.ended()||this.player_.paused()||this.enableInterval_(),this.update())},_proto.enableInterval_=function(){this.updateInterval||(this.updateInterval=this.setInterval(this.update,30))},_proto.disableInterval_=function(e){this.player_.liveTracker&&this.player_.liveTracker.isLive()&&e&&"ended"!==e.type||this.updateInterval&&(this.clearInterval(this.updateInterval),this.updateInterval=null)},_proto.createEl=function(){return _Slider.prototype.createEl.call(this,"div",{className:"vjs-progress-holder"},{"aria-label":this.localize("Progress Bar")})},_proto.update=function(event){var _this3=this;if("hidden"!==document.visibilityState){var percent=_Slider.prototype.update.call(this);return this.requestNamedAnimationFrame("SeekBar#update",(function(){var currentTime=_this3.player_.ended()?_this3.player_.duration():_this3.getCurrentTime_(),liveTracker=_this3.player_.liveTracker,duration=_this3.player_.duration();liveTracker&&liveTracker.isLive()&&(duration=_this3.player_.liveTracker.liveCurrentTime()),_this3.percent_!==percent&&(_this3.el_.setAttribute("aria-valuenow",(100*percent).toFixed(2)),_this3.percent_=percent),_this3.currentTime_===currentTime&&_this3.duration_===duration||(_this3.el_.setAttribute("aria-valuetext",_this3.localize("progress bar timing: currentTime={1} duration={2}",[formatTime(currentTime,duration),formatTime(duration,duration)],"{1} of {2}")),_this3.currentTime_=currentTime,_this3.duration_=duration),_this3.bar&&_this3.bar.update(getBoundingClientRect(_this3.el()),_this3.getProgress())})),percent}},_proto.userSeek_=function(ct){this.player_.liveTracker&&this.player_.liveTracker.isLive()&&this.player_.liveTracker.nextSeekedFromUser(),this.player_.currentTime(ct)},_proto.getCurrentTime_=function(){return this.player_.scrubbing()?this.player_.getCache().currentTime:this.player_.currentTime()},_proto.getPercent=function(){var percent,currentTime=this.getCurrentTime_(),liveTracker=this.player_.liveTracker;return liveTracker&&liveTracker.isLive()?(percent=(currentTime-liveTracker.seekableStart())/liveTracker.liveWindow(),liveTracker.atLiveEdge()&&(percent=1)):percent=currentTime/this.player_.duration(),percent},_proto.handleMouseDown=function(event){isSingleLeftClick(event)&&(event.stopPropagation(),this.videoWasPlaying=!this.player_.paused(),this.player_.pause(),_Slider.prototype.handleMouseDown.call(this,event))},_proto.handleMouseMove=function(event,mouseDown){if(void 0===mouseDown&&(mouseDown=!1),isSingleLeftClick(event)){var newTime;mouseDown||this.player_.scrubbing()||this.player_.scrubbing(!0);var distance=this.calculateDistance(event),liveTracker=this.player_.liveTracker;if(liveTracker&&liveTracker.isLive()){if(distance>=.99)return void liveTracker.seekToLiveEdge();var seekableStart=liveTracker.seekableStart(),seekableEnd=liveTracker.liveCurrentTime();if((newTime=seekableStart+distance*liveTracker.liveWindow())>=seekableEnd&&(newTime=seekableEnd),newTime<=seekableStart&&(newTime=seekableStart+.1),newTime===1/0)return}else(newTime=distance*this.player_.duration())===this.player_.duration()&&(newTime-=.1);this.userSeek_(newTime)}},_proto.enable=function(){_Slider.prototype.enable.call(this);var mouseTimeDisplay=this.getChild("mouseTimeDisplay");mouseTimeDisplay&&mouseTimeDisplay.show()},_proto.disable=function(){_Slider.prototype.disable.call(this);var mouseTimeDisplay=this.getChild("mouseTimeDisplay");mouseTimeDisplay&&mouseTimeDisplay.hide()},_proto.handleMouseUp=function(event){_Slider.prototype.handleMouseUp.call(this,event),event&&event.stopPropagation(),this.player_.scrubbing(!1),this.player_.trigger({type:"timeupdate",target:this,manuallyTriggered:!0}),this.videoWasPlaying?silencePromise(this.player_.play()):this.update_()},_proto.stepForward=function(){this.userSeek_(this.player_.currentTime()+5)},_proto.stepBack=function(){this.userSeek_(this.player_.currentTime()-5)},_proto.handleAction=function(event){this.player_.paused()?this.player_.play():this.player_.pause()},_proto.handleKeyDown=function(event){var liveTracker=this.player_.liveTracker;if(keycode.isEventKey(event,"Space")||keycode.isEventKey(event,"Enter"))event.preventDefault(),event.stopPropagation(),this.handleAction(event);else if(keycode.isEventKey(event,"Home"))event.preventDefault(),event.stopPropagation(),this.userSeek_(0);else if(keycode.isEventKey(event,"End"))event.preventDefault(),event.stopPropagation(),liveTracker&&liveTracker.isLive()?this.userSeek_(liveTracker.liveCurrentTime()):this.userSeek_(this.player_.duration());else if(/^[0-9]$/.test(keycode(event))){event.preventDefault(),event.stopPropagation();var gotoFraction=10*(keycode.codes[keycode(event)]-keycode.codes[0])/100;liveTracker&&liveTracker.isLive()?this.userSeek_(liveTracker.seekableStart()+liveTracker.liveWindow()*gotoFraction):this.userSeek_(this.player_.duration()*gotoFraction)}else keycode.isEventKey(event,"PgDn")?(event.preventDefault(),event.stopPropagation(),this.userSeek_(this.player_.currentTime()-60)):keycode.isEventKey(event,"PgUp")?(event.preventDefault(),event.stopPropagation(),this.userSeek_(this.player_.currentTime()+60)):_Slider.prototype.handleKeyDown.call(this,event)},_proto.dispose=function(){this.disableInterval_(),this.off(this.player_,["ended","durationchange","timeupdate"],this.update),this.player_.liveTracker&&this.off(this.player_.liveTracker,"liveedgechange",this.update),this.off(this.player_,["playing"],this.enableIntervalHandler_),this.off(this.player_,["ended","pause","waiting"],this.disableIntervalHandler_),"hidden"in document&&"visibilityState"in document&&this.off(document,"visibilitychange",this.toggleVisibility_),_Slider.prototype.dispose.call(this)},SeekBar}(Slider);SeekBar.prototype.options_={children:["loadProgressBar","playProgressBar"],barName:"playProgressBar"},IS_IOS||IS_ANDROID||SeekBar.prototype.options_.children.splice(1,0,"mouseTimeDisplay"),Component$1.registerComponent("SeekBar",SeekBar);var ProgressControl=function(_Component){function ProgressControl(player,options){var _this;return(_this=_Component.call(this,player,options)||this).handleMouseMove=throttle(bind(assertThisInitialized(_this),_this.handleMouseMove),30),_this.throttledHandleMouseSeek=throttle(bind(assertThisInitialized(_this),_this.handleMouseSeek),30),_this.handleMouseUpHandler_=function(e){return _this.handleMouseUp(e)},_this.handleMouseDownHandler_=function(e){return _this.handleMouseDown(e)},_this.enable(),_this}inheritsLoose(ProgressControl,_Component);var _proto=ProgressControl.prototype;return _proto.createEl=function(){return _Component.prototype.createEl.call(this,"div",{className:"vjs-progress-control vjs-control"})},_proto.handleMouseMove=function(event){var seekBar=this.getChild("seekBar");if(seekBar){var playProgressBar=seekBar.getChild("playProgressBar"),mouseTimeDisplay=seekBar.getChild("mouseTimeDisplay");if(playProgressBar||mouseTimeDisplay){var seekBarEl=seekBar.el(),seekBarRect=findPosition(seekBarEl),seekBarPoint=getPointerPosition(seekBarEl,event).x;seekBarPoint=clamp(seekBarPoint,0,1),mouseTimeDisplay&&mouseTimeDisplay.update(seekBarRect,seekBarPoint),playProgressBar&&playProgressBar.update(seekBarRect,seekBar.getProgress())}}},_proto.handleMouseSeek=function(event){var seekBar=this.getChild("seekBar");seekBar&&seekBar.handleMouseMove(event)},_proto.enabled=function(){return this.enabled_},_proto.disable=function(){if(this.children().forEach((function(child){return child.disable&&child.disable()})),this.enabled()&&(this.off(["mousedown","touchstart"],this.handleMouseDownHandler_),this.off(this.el_,"mousemove",this.handleMouseMove),this.removeListenersAddedOnMousedownAndTouchstart(),this.addClass("disabled"),this.enabled_=!1,this.player_.scrubbing())){var seekBar=this.getChild("seekBar");this.player_.scrubbing(!1),seekBar.videoWasPlaying&&silencePromise(this.player_.play())}},_proto.enable=function(){this.children().forEach((function(child){return child.enable&&child.enable()})),this.enabled()||(this.on(["mousedown","touchstart"],this.handleMouseDownHandler_),this.on(this.el_,"mousemove",this.handleMouseMove),this.removeClass("disabled"),this.enabled_=!0)},_proto.removeListenersAddedOnMousedownAndTouchstart=function(){var doc=this.el_.ownerDocument;this.off(doc,"mousemove",this.throttledHandleMouseSeek),this.off(doc,"touchmove",this.throttledHandleMouseSeek),this.off(doc,"mouseup",this.handleMouseUpHandler_),this.off(doc,"touchend",this.handleMouseUpHandler_)},_proto.handleMouseDown=function(event){var doc=this.el_.ownerDocument,seekBar=this.getChild("seekBar");seekBar&&seekBar.handleMouseDown(event),this.on(doc,"mousemove",this.throttledHandleMouseSeek),this.on(doc,"touchmove",this.throttledHandleMouseSeek),this.on(doc,"mouseup",this.handleMouseUpHandler_),this.on(doc,"touchend",this.handleMouseUpHandler_)},_proto.handleMouseUp=function(event){var seekBar=this.getChild("seekBar");seekBar&&seekBar.handleMouseUp(event),this.removeListenersAddedOnMousedownAndTouchstart()},ProgressControl}(Component$1);ProgressControl.prototype.options_={children:["seekBar"]},Component$1.registerComponent("ProgressControl",ProgressControl);var PictureInPictureToggle=function(_Button){function PictureInPictureToggle(player,options){var _this;return(_this=_Button.call(this,player,options)||this).on(player,["enterpictureinpicture","leavepictureinpicture"],(function(e){return _this.handlePictureInPictureChange(e)})),_this.on(player,["disablepictureinpicturechanged","loadedmetadata"],(function(e){return _this.handlePictureInPictureEnabledChange(e)})),_this.on(player,["loadedmetadata","audioonlymodechange","audiopostermodechange"],(function(){"audio"===player.currentType().substring(0,5)||player.audioPosterMode()||player.audioOnlyMode()?(player.isInPictureInPicture()&&player.exitPictureInPicture(),_this.hide()):_this.show()})),_this.disable(),_this}inheritsLoose(PictureInPictureToggle,_Button);var _proto=PictureInPictureToggle.prototype;return _proto.buildCSSClass=function(){return"vjs-picture-in-picture-control "+_Button.prototype.buildCSSClass.call(this)},_proto.handlePictureInPictureEnabledChange=function(){document.pictureInPictureEnabled&&!1===this.player_.disablePictureInPicture()?this.enable():this.disable()},_proto.handlePictureInPictureChange=function(event){this.player_.isInPictureInPicture()?this.controlText("Exit Picture-in-Picture"):this.controlText("Picture-in-Picture"),this.handlePictureInPictureEnabledChange()},_proto.handleClick=function(event){this.player_.isInPictureInPicture()?this.player_.exitPictureInPicture():this.player_.requestPictureInPicture()},PictureInPictureToggle}(Button);PictureInPictureToggle.prototype.controlText_="Picture-in-Picture",Component$1.registerComponent("PictureInPictureToggle",PictureInPictureToggle);var FullscreenToggle=function(_Button){function FullscreenToggle(player,options){var _this;return(_this=_Button.call(this,player,options)||this).on(player,"fullscreenchange",(function(e){return _this.handleFullscreenChange(e)})),!1===document[player.fsApi_.fullscreenEnabled]&&_this.disable(),_this}inheritsLoose(FullscreenToggle,_Button);var _proto=FullscreenToggle.prototype;return _proto.buildCSSClass=function(){return"vjs-fullscreen-control "+_Button.prototype.buildCSSClass.call(this)},_proto.handleFullscreenChange=function(event){this.player_.isFullscreen()?this.controlText("Non-Fullscreen"):this.controlText("Fullscreen")},_proto.handleClick=function(event){this.player_.isFullscreen()?this.player_.exitFullscreen():this.player_.requestFullscreen()},FullscreenToggle}(Button);FullscreenToggle.prototype.controlText_="Fullscreen",Component$1.registerComponent("FullscreenToggle",FullscreenToggle);var VolumeLevel=function(_Component){function VolumeLevel(){return _Component.apply(this,arguments)||this}return inheritsLoose(VolumeLevel,_Component),VolumeLevel.prototype.createEl=function(){var el=_Component.prototype.createEl.call(this,"div",{className:"vjs-volume-level"});return el.appendChild(_Component.prototype.createEl.call(this,"span",{className:"vjs-control-text"})),el},VolumeLevel}(Component$1);Component$1.registerComponent("VolumeLevel",VolumeLevel);var VolumeLevelTooltip=function(_Component){function VolumeLevelTooltip(player,options){var _this;return(_this=_Component.call(this,player,options)||this).update=throttle(bind(assertThisInitialized(_this),_this.update),30),_this}inheritsLoose(VolumeLevelTooltip,_Component);var _proto=VolumeLevelTooltip.prototype;return _proto.createEl=function(){return _Component.prototype.createEl.call(this,"div",{className:"vjs-volume-tooltip"},{"aria-hidden":"true"})},_proto.update=function(rangeBarRect,rangeBarPoint,vertical,content){if(!vertical){var tooltipRect=getBoundingClientRect(this.el_),playerRect=getBoundingClientRect(this.player_.el()),volumeBarPointPx=rangeBarRect.width*rangeBarPoint;if(!playerRect||!tooltipRect)return;var spaceLeftOfPoint=rangeBarRect.left-playerRect.left+volumeBarPointPx,spaceRightOfPoint=rangeBarRect.width-volumeBarPointPx+(playerRect.right-rangeBarRect.right),pullTooltipBy=tooltipRect.width/2;spaceLeftOfPoint<pullTooltipBy?pullTooltipBy+=pullTooltipBy-spaceLeftOfPoint:spaceRightOfPoint<pullTooltipBy&&(pullTooltipBy=spaceRightOfPoint),pullTooltipBy<0?pullTooltipBy=0:pullTooltipBy>tooltipRect.width&&(pullTooltipBy=tooltipRect.width),this.el_.style.right="-"+pullTooltipBy+"px"}this.write(content+"%")},_proto.write=function(content){textContent(this.el_,content)},_proto.updateVolume=function(rangeBarRect,rangeBarPoint,vertical,volume,cb){var _this2=this;this.requestNamedAnimationFrame("VolumeLevelTooltip#updateVolume",(function(){_this2.update(rangeBarRect,rangeBarPoint,vertical,volume.toFixed(0)),cb&&cb()}))},VolumeLevelTooltip}(Component$1);Component$1.registerComponent("VolumeLevelTooltip",VolumeLevelTooltip);var MouseVolumeLevelDisplay=function(_Component){function MouseVolumeLevelDisplay(player,options){var _this;return(_this=_Component.call(this,player,options)||this).update=throttle(bind(assertThisInitialized(_this),_this.update),30),_this}inheritsLoose(MouseVolumeLevelDisplay,_Component);var _proto=MouseVolumeLevelDisplay.prototype;return _proto.createEl=function(){return _Component.prototype.createEl.call(this,"div",{className:"vjs-mouse-display"})},_proto.update=function(rangeBarRect,rangeBarPoint,vertical){var _this2=this,volume=100*rangeBarPoint;this.getChild("volumeLevelTooltip").updateVolume(rangeBarRect,rangeBarPoint,vertical,volume,(function(){vertical?_this2.el_.style.bottom=rangeBarRect.height*rangeBarPoint+"px":_this2.el_.style.left=rangeBarRect.width*rangeBarPoint+"px"}))},MouseVolumeLevelDisplay}(Component$1);MouseVolumeLevelDisplay.prototype.options_={children:["volumeLevelTooltip"]},Component$1.registerComponent("MouseVolumeLevelDisplay",MouseVolumeLevelDisplay);var VolumeBar=function(_Slider){function VolumeBar(player,options){var _this;return(_this=_Slider.call(this,player,options)||this).on("slideractive",(function(e){return _this.updateLastVolume_(e)})),_this.on(player,"volumechange",(function(e){return _this.updateARIAAttributes(e)})),player.ready((function(){return _this.updateARIAAttributes()})),_this}inheritsLoose(VolumeBar,_Slider);var _proto=VolumeBar.prototype;return _proto.createEl=function(){return _Slider.prototype.createEl.call(this,"div",{className:"vjs-volume-bar vjs-slider-bar"},{"aria-label":this.localize("Volume Level"),"aria-live":"polite"})},_proto.handleMouseDown=function(event){isSingleLeftClick(event)&&_Slider.prototype.handleMouseDown.call(this,event)},_proto.handleMouseMove=function(event){var mouseVolumeLevelDisplay=this.getChild("mouseVolumeLevelDisplay");if(mouseVolumeLevelDisplay){var volumeBarEl=this.el(),volumeBarRect=getBoundingClientRect(volumeBarEl),vertical=this.vertical(),volumeBarPoint=getPointerPosition(volumeBarEl,event);volumeBarPoint=vertical?volumeBarPoint.y:volumeBarPoint.x,volumeBarPoint=clamp(volumeBarPoint,0,1),mouseVolumeLevelDisplay.update(volumeBarRect,volumeBarPoint,vertical)}isSingleLeftClick(event)&&(this.checkMuted(),this.player_.volume(this.calculateDistance(event)))},_proto.checkMuted=function(){this.player_.muted()&&this.player_.muted(!1)},_proto.getPercent=function(){return this.player_.muted()?0:this.player_.volume()},_proto.stepForward=function(){this.checkMuted(),this.player_.volume(this.player_.volume()+.1)},_proto.stepBack=function(){this.checkMuted(),this.player_.volume(this.player_.volume()-.1)},_proto.updateARIAAttributes=function(event){var ariaValue=this.player_.muted()?0:this.volumeAsPercentage_();this.el_.setAttribute("aria-valuenow",ariaValue),this.el_.setAttribute("aria-valuetext",ariaValue+"%")},_proto.volumeAsPercentage_=function(){return Math.round(100*this.player_.volume())},_proto.updateLastVolume_=function(){var _this2=this,volumeBeforeDrag=this.player_.volume();this.one("sliderinactive",(function(){0===_this2.player_.volume()&&_this2.player_.lastVolume_(volumeBeforeDrag)}))},VolumeBar}(Slider);VolumeBar.prototype.options_={children:["volumeLevel"],barName:"volumeLevel"},IS_IOS||IS_ANDROID||VolumeBar.prototype.options_.children.splice(0,0,"mouseVolumeLevelDisplay"),VolumeBar.prototype.playerEvent="volumechange",Component$1.registerComponent("VolumeBar",VolumeBar);var VolumeControl=function(_Component){function VolumeControl(player,options){var _this;return void 0===options&&(options={}),options.vertical=options.vertical||!1,(void 0===options.volumeBar||isPlain(options.volumeBar))&&(options.volumeBar=options.volumeBar||{},options.volumeBar.vertical=options.vertical),_this=_Component.call(this,player,options)||this,function(self,player){player.tech_&&!player.tech_.featuresVolumeControl&&self.addClass("vjs-hidden"),self.on(player,"loadstart",(function(){player.tech_.featuresVolumeControl?self.removeClass("vjs-hidden"):self.addClass("vjs-hidden")}))}(assertThisInitialized(_this),player),_this.throttledHandleMouseMove=throttle(bind(assertThisInitialized(_this),_this.handleMouseMove),30),_this.handleMouseUpHandler_=function(e){return _this.handleMouseUp(e)},_this.on("mousedown",(function(e){return _this.handleMouseDown(e)})),_this.on("touchstart",(function(e){return _this.handleMouseDown(e)})),_this.on("mousemove",(function(e){return _this.handleMouseMove(e)})),_this.on(_this.volumeBar,["focus","slideractive"],(function(){_this.volumeBar.addClass("vjs-slider-active"),_this.addClass("vjs-slider-active"),_this.trigger("slideractive")})),_this.on(_this.volumeBar,["blur","sliderinactive"],(function(){_this.volumeBar.removeClass("vjs-slider-active"),_this.removeClass("vjs-slider-active"),_this.trigger("sliderinactive")})),_this}inheritsLoose(VolumeControl,_Component);var _proto=VolumeControl.prototype;return _proto.createEl=function(){var orientationClass="vjs-volume-horizontal";return this.options_.vertical&&(orientationClass="vjs-volume-vertical"),_Component.prototype.createEl.call(this,"div",{className:"vjs-volume-control vjs-control "+orientationClass})},_proto.handleMouseDown=function(event){var doc=this.el_.ownerDocument;this.on(doc,"mousemove",this.throttledHandleMouseMove),this.on(doc,"touchmove",this.throttledHandleMouseMove),this.on(doc,"mouseup",this.handleMouseUpHandler_),this.on(doc,"touchend",this.handleMouseUpHandler_)},_proto.handleMouseUp=function(event){var doc=this.el_.ownerDocument;this.off(doc,"mousemove",this.throttledHandleMouseMove),this.off(doc,"touchmove",this.throttledHandleMouseMove),this.off(doc,"mouseup",this.handleMouseUpHandler_),this.off(doc,"touchend",this.handleMouseUpHandler_)},_proto.handleMouseMove=function(event){this.volumeBar.handleMouseMove(event)},VolumeControl}(Component$1);VolumeControl.prototype.options_={children:["volumeBar"]},Component$1.registerComponent("VolumeControl",VolumeControl);var MuteToggle=function(_Button){function MuteToggle(player,options){var _this;return _this=_Button.call(this,player,options)||this,function(self,player){player.tech_&&!player.tech_.featuresMuteControl&&self.addClass("vjs-hidden"),self.on(player,"loadstart",(function(){player.tech_.featuresMuteControl?self.removeClass("vjs-hidden"):self.addClass("vjs-hidden")}))}(assertThisInitialized(_this),player),_this.on(player,["loadstart","volumechange"],(function(e){return _this.update(e)})),_this}inheritsLoose(MuteToggle,_Button);var _proto=MuteToggle.prototype;return _proto.buildCSSClass=function(){return"vjs-mute-control "+_Button.prototype.buildCSSClass.call(this)},_proto.handleClick=function(event){var vol=this.player_.volume(),lastVolume=this.player_.lastVolume_();if(0===vol){var volumeToSet=lastVolume<.1?.1:lastVolume;this.player_.volume(volumeToSet),this.player_.muted(!1)}else this.player_.muted(!this.player_.muted())},_proto.update=function(event){this.updateIcon_(),this.updateControlText_()},_proto.updateIcon_=function(){var vol=this.player_.volume(),level=3;IS_IOS&&this.player_.tech_&&this.player_.tech_.el_&&this.player_.muted(this.player_.tech_.el_.muted),0===vol||this.player_.muted()?level=0:vol<.33?level=1:vol<.67&&(level=2);for(var i=0;i<4;i++)removeClass(this.el_,"vjs-vol-"+i);addClass(this.el_,"vjs-vol-"+level)},_proto.updateControlText_=function(){var text=this.player_.muted()||0===this.player_.volume()?"Unmute":"Mute";this.controlText()!==text&&this.controlText(text)},MuteToggle}(Button);MuteToggle.prototype.controlText_="Mute",Component$1.registerComponent("MuteToggle",MuteToggle);var VolumePanel=function(_Component){function VolumePanel(player,options){var _this;return void 0===options&&(options={}),void 0!==options.inline?options.inline=options.inline:options.inline=!0,(void 0===options.volumeControl||isPlain(options.volumeControl))&&(options.volumeControl=options.volumeControl||{},options.volumeControl.vertical=!options.inline),(_this=_Component.call(this,player,options)||this).handleKeyPressHandler_=function(e){return _this.handleKeyPress(e)},_this.on(player,["loadstart"],(function(e){return _this.volumePanelState_(e)})),_this.on(_this.muteToggle,"keyup",(function(e){return _this.handleKeyPress(e)})),_this.on(_this.volumeControl,"keyup",(function(e){return _this.handleVolumeControlKeyUp(e)})),_this.on("keydown",(function(e){return _this.handleKeyPress(e)})),_this.on("mouseover",(function(e){return _this.handleMouseOver(e)})),_this.on("mouseout",(function(e){return _this.handleMouseOut(e)})),_this.on(_this.volumeControl,["slideractive"],_this.sliderActive_),_this.on(_this.volumeControl,["sliderinactive"],_this.sliderInactive_),_this}inheritsLoose(VolumePanel,_Component);var _proto=VolumePanel.prototype;return _proto.sliderActive_=function(){this.addClass("vjs-slider-active")},_proto.sliderInactive_=function(){this.removeClass("vjs-slider-active")},_proto.volumePanelState_=function(){this.volumeControl.hasClass("vjs-hidden")&&this.muteToggle.hasClass("vjs-hidden")&&this.addClass("vjs-hidden"),this.volumeControl.hasClass("vjs-hidden")&&!this.muteToggle.hasClass("vjs-hidden")&&this.addClass("vjs-mute-toggle-only")},_proto.createEl=function(){var orientationClass="vjs-volume-panel-horizontal";return this.options_.inline||(orientationClass="vjs-volume-panel-vertical"),_Component.prototype.createEl.call(this,"div",{className:"vjs-volume-panel vjs-control "+orientationClass})},_proto.dispose=function(){this.handleMouseOut(),_Component.prototype.dispose.call(this)},_proto.handleVolumeControlKeyUp=function(event){keycode.isEventKey(event,"Esc")&&this.muteToggle.focus()},_proto.handleMouseOver=function(event){this.addClass("vjs-hover"),on(document,"keyup",this.handleKeyPressHandler_)},_proto.handleMouseOut=function(event){this.removeClass("vjs-hover"),off(document,"keyup",this.handleKeyPressHandler_)},_proto.handleKeyPress=function(event){keycode.isEventKey(event,"Esc")&&this.handleMouseOut()},VolumePanel}(Component$1);VolumePanel.prototype.options_={children:["muteToggle","volumeControl"]},Component$1.registerComponent("VolumePanel",VolumePanel);var Menu=function(_Component){function Menu(player,options){var _this;return _this=_Component.call(this,player,options)||this,options&&(_this.menuButton_=options.menuButton),_this.focusedChild_=-1,_this.on("keydown",(function(e){return _this.handleKeyDown(e)})),_this.boundHandleBlur_=function(e){return _this.handleBlur(e)},_this.boundHandleTapClick_=function(e){return _this.handleTapClick(e)},_this}inheritsLoose(Menu,_Component);var _proto=Menu.prototype;return _proto.addEventListenerForItem=function(component){component instanceof Component$1&&(this.on(component,"blur",this.boundHandleBlur_),this.on(component,["tap","click"],this.boundHandleTapClick_))},_proto.removeEventListenerForItem=function(component){component instanceof Component$1&&(this.off(component,"blur",this.boundHandleBlur_),this.off(component,["tap","click"],this.boundHandleTapClick_))},_proto.removeChild=function(component){"string"==typeof component&&(component=this.getChild(component)),this.removeEventListenerForItem(component),_Component.prototype.removeChild.call(this,component)},_proto.addItem=function(component){var childComponent=this.addChild(component);childComponent&&this.addEventListenerForItem(childComponent)},_proto.createEl=function(){var contentElType=this.options_.contentElType||"ul";this.contentEl_=createEl(contentElType,{className:"vjs-menu-content"}),this.contentEl_.setAttribute("role","menu");var el=_Component.prototype.createEl.call(this,"div",{append:this.contentEl_,className:"vjs-menu"});return el.appendChild(this.contentEl_),on(el,"click",(function(event){event.preventDefault(),event.stopImmediatePropagation()})),el},_proto.dispose=function(){this.contentEl_=null,this.boundHandleBlur_=null,this.boundHandleTapClick_=null,_Component.prototype.dispose.call(this)},_proto.handleBlur=function(event){var relatedTarget=event.relatedTarget||document.activeElement;if(!this.children().some((function(element){return element.el()===relatedTarget}))){var btn=this.menuButton_;btn&&btn.buttonPressed_&&relatedTarget!==btn.el().firstChild&&btn.unpressButton()}},_proto.handleTapClick=function(event){if(this.menuButton_){this.menuButton_.unpressButton();var childComponents=this.children();if(!Array.isArray(childComponents))return;var foundComponent=childComponents.filter((function(component){return component.el()===event.target}))[0];if(!foundComponent)return;"CaptionSettingsMenuItem"!==foundComponent.name()&&this.menuButton_.focus()}},_proto.handleKeyDown=function(event){keycode.isEventKey(event,"Left")||keycode.isEventKey(event,"Down")?(event.preventDefault(),event.stopPropagation(),this.stepForward()):(keycode.isEventKey(event,"Right")||keycode.isEventKey(event,"Up"))&&(event.preventDefault(),event.stopPropagation(),this.stepBack())},_proto.stepForward=function(){var stepChild=0;void 0!==this.focusedChild_&&(stepChild=this.focusedChild_+1),this.focus(stepChild)},_proto.stepBack=function(){var stepChild=0;void 0!==this.focusedChild_&&(stepChild=this.focusedChild_-1),this.focus(stepChild)},_proto.focus=function(item){void 0===item&&(item=0);var children=this.children().slice();children.length&&children[0].hasClass("vjs-menu-title")&&children.shift(),children.length>0&&(item<0?item=0:item>=children.length&&(item=children.length-1),this.focusedChild_=item,children[item].el_.focus())},Menu}(Component$1);Component$1.registerComponent("Menu",Menu);var MenuButton=function(_Component){function MenuButton(player,options){var _this;void 0===options&&(options={}),(_this=_Component.call(this,player,options)||this).menuButton_=new Button(player,options),_this.menuButton_.controlText(_this.controlText_),_this.menuButton_.el_.setAttribute("aria-haspopup","true");var buttonClass=Button.prototype.buildCSSClass();_this.menuButton_.el_.className=_this.buildCSSClass()+" "+buttonClass,_this.menuButton_.removeClass("vjs-control"),_this.addChild(_this.menuButton_),_this.update(),_this.enabled_=!0;var handleClick=function(e){return _this.handleClick(e)};return _this.handleMenuKeyUp_=function(e){return _this.handleMenuKeyUp(e)},_this.on(_this.menuButton_,"tap",handleClick),_this.on(_this.menuButton_,"click",handleClick),_this.on(_this.menuButton_,"keydown",(function(e){return _this.handleKeyDown(e)})),_this.on(_this.menuButton_,"mouseenter",(function(){_this.addClass("vjs-hover"),_this.menu.show(),on(document,"keyup",_this.handleMenuKeyUp_)})),_this.on("mouseleave",(function(e){return _this.handleMouseLeave(e)})),_this.on("keydown",(function(e){return _this.handleSubmenuKeyDown(e)})),_this}inheritsLoose(MenuButton,_Component);var _proto=MenuButton.prototype;return _proto.update=function(){var menu=this.createMenu();this.menu&&(this.menu.dispose(),this.removeChild(this.menu)),this.menu=menu,this.addChild(menu),this.buttonPressed_=!1,this.menuButton_.el_.setAttribute("aria-expanded","false"),this.items&&this.items.length<=this.hideThreshold_?(this.hide(),this.menu.contentEl_.removeAttribute("role")):(this.show(),this.menu.contentEl_.setAttribute("role","menu"))},_proto.createMenu=function(){var menu=new Menu(this.player_,{menuButton:this});if(this.hideThreshold_=0,this.options_.title){var titleEl=createEl("li",{className:"vjs-menu-title",textContent:toTitleCase$1(this.options_.title),tabIndex:-1}),titleComponent=new Component$1(this.player_,{el:titleEl});menu.addItem(titleComponent)}if(this.items=this.createItems(),this.items)for(var i=0;i<this.items.length;i++)menu.addItem(this.items[i]);return menu},_proto.createItems=function(){},_proto.createEl=function(){return _Component.prototype.createEl.call(this,"div",{className:this.buildWrapperCSSClass()},{})},_proto.buildWrapperCSSClass=function(){var menuButtonClass="vjs-menu-button";return!0===this.options_.inline?menuButtonClass+="-inline":menuButtonClass+="-popup","vjs-menu-button "+menuButtonClass+" "+Button.prototype.buildCSSClass()+" "+_Component.prototype.buildCSSClass.call(this)},_proto.buildCSSClass=function(){var menuButtonClass="vjs-menu-button";return!0===this.options_.inline?menuButtonClass+="-inline":menuButtonClass+="-popup","vjs-menu-button "+menuButtonClass+" "+_Component.prototype.buildCSSClass.call(this)},_proto.controlText=function(text,el){return void 0===el&&(el=this.menuButton_.el()),this.menuButton_.controlText(text,el)},_proto.dispose=function(){this.handleMouseLeave(),_Component.prototype.dispose.call(this)},_proto.handleClick=function(event){this.buttonPressed_?this.unpressButton():this.pressButton()},_proto.handleMouseLeave=function(event){this.removeClass("vjs-hover"),off(document,"keyup",this.handleMenuKeyUp_)},_proto.focus=function(){this.menuButton_.focus()},_proto.blur=function(){this.menuButton_.blur()},_proto.handleKeyDown=function(event){keycode.isEventKey(event,"Esc")||keycode.isEventKey(event,"Tab")?(this.buttonPressed_&&this.unpressButton(),keycode.isEventKey(event,"Tab")||(event.preventDefault(),this.menuButton_.focus())):(keycode.isEventKey(event,"Up")||keycode.isEventKey(event,"Down"))&&(this.buttonPressed_||(event.preventDefault(),this.pressButton()))},_proto.handleMenuKeyUp=function(event){(keycode.isEventKey(event,"Esc")||keycode.isEventKey(event,"Tab"))&&this.removeClass("vjs-hover")},_proto.handleSubmenuKeyPress=function(event){this.handleSubmenuKeyDown(event)},_proto.handleSubmenuKeyDown=function(event){(keycode.isEventKey(event,"Esc")||keycode.isEventKey(event,"Tab"))&&(this.buttonPressed_&&this.unpressButton(),keycode.isEventKey(event,"Tab")||(event.preventDefault(),this.menuButton_.focus()))},_proto.pressButton=function(){if(this.enabled_){if(this.buttonPressed_=!0,this.menu.show(),this.menu.lockShowing(),this.menuButton_.el_.setAttribute("aria-expanded","true"),IS_IOS&&isInFrame())return;this.menu.focus()}},_proto.unpressButton=function(){this.enabled_&&(this.buttonPressed_=!1,this.menu.unlockShowing(),this.menu.hide(),this.menuButton_.el_.setAttribute("aria-expanded","false"))},_proto.disable=function(){this.unpressButton(),this.enabled_=!1,this.addClass("vjs-disabled"),this.menuButton_.disable()},_proto.enable=function(){this.enabled_=!0,this.removeClass("vjs-disabled"),this.menuButton_.enable()},MenuButton}(Component$1);Component$1.registerComponent("MenuButton",MenuButton);var TrackButton=function(_MenuButton){function TrackButton(player,options){var _this,tracks=options.tracks;if((_this=_MenuButton.call(this,player,options)||this).items.length<=1&&_this.hide(),!tracks)return assertThisInitialized(_this);var updateHandler=bind(assertThisInitialized(_this),_this.update);return tracks.addEventListener("removetrack",updateHandler),tracks.addEventListener("addtrack",updateHandler),tracks.addEventListener("labelchange",updateHandler),_this.player_.on("ready",updateHandler),_this.player_.on("dispose",(function(){tracks.removeEventListener("removetrack",updateHandler),tracks.removeEventListener("addtrack",updateHandler),tracks.removeEventListener("labelchange",updateHandler)})),_this}return inheritsLoose(TrackButton,_MenuButton),TrackButton}(MenuButton);Component$1.registerComponent("TrackButton",TrackButton);var MenuKeys=["Tab","Esc","Up","Down","Right","Left"],MenuItem=function(_ClickableComponent){function MenuItem(player,options){var _this;return(_this=_ClickableComponent.call(this,player,options)||this).selectable=options.selectable,_this.isSelected_=options.selected||!1,_this.multiSelectable=options.multiSelectable,_this.selected(_this.isSelected_),_this.selectable?_this.multiSelectable?_this.el_.setAttribute("role","menuitemcheckbox"):_this.el_.setAttribute("role","menuitemradio"):_this.el_.setAttribute("role","menuitem"),_this}inheritsLoose(MenuItem,_ClickableComponent);var _proto=MenuItem.prototype;return _proto.createEl=function(type,props,attrs){this.nonIconControl=!0;var el=_ClickableComponent.prototype.createEl.call(this,"li",assign({className:"vjs-menu-item",tabIndex:-1},props),attrs);return el.replaceChild(createEl("span",{className:"vjs-menu-item-text",textContent:this.localize(this.options_.label)}),el.querySelector(".vjs-icon-placeholder")),el},_proto.handleKeyDown=function(event){MenuKeys.some((function(key){return keycode.isEventKey(event,key)}))||_ClickableComponent.prototype.handleKeyDown.call(this,event)},_proto.handleClick=function(event){this.selected(!0)},_proto.selected=function(_selected){this.selectable&&(_selected?(this.addClass("vjs-selected"),this.el_.setAttribute("aria-checked","true"),this.controlText(", selected"),this.isSelected_=!0):(this.removeClass("vjs-selected"),this.el_.setAttribute("aria-checked","false"),this.controlText(""),this.isSelected_=!1))},MenuItem}(ClickableComponent);Component$1.registerComponent("MenuItem",MenuItem);var TextTrackMenuItem=function(_MenuItem){function TextTrackMenuItem(player,options){var _this,track=options.track,tracks=player.textTracks();options.label=track.label||track.language||"Unknown",options.selected="showing"===track.mode,(_this=_MenuItem.call(this,player,options)||this).track=track,_this.kinds=(options.kinds||[options.kind||_this.track.kind]).filter(Boolean);var event,changeHandler=function(){for(var _len=arguments.length,args=new Array(_len),_key=0;_key<_len;_key++)args[_key]=arguments[_key];_this.handleTracksChange.apply(assertThisInitialized(_this),args)},selectedLanguageChangeHandler=function(){for(var _len2=arguments.length,args=new Array(_len2),_key2=0;_key2<_len2;_key2++)args[_key2]=arguments[_key2];_this.handleSelectedLanguageChange.apply(assertThisInitialized(_this),args)};(player.on(["loadstart","texttrackchange"],changeHandler),tracks.addEventListener("change",changeHandler),tracks.addEventListener("selectedlanguagechange",selectedLanguageChangeHandler),_this.on("dispose",(function(){player.off(["loadstart","texttrackchange"],changeHandler),tracks.removeEventListener("change",changeHandler),tracks.removeEventListener("selectedlanguagechange",selectedLanguageChangeHandler)})),void 0===tracks.onchange)&&_this.on(["tap","click"],(function(){if("object"!=typeof window.Event)try{event=new window.Event("change")}catch(err){}event||(event=document.createEvent("Event")).initEvent("change",!0,!0),tracks.dispatchEvent(event)}));return _this.handleTracksChange(),_this}inheritsLoose(TextTrackMenuItem,_MenuItem);var _proto=TextTrackMenuItem.prototype;return _proto.handleClick=function(event){var referenceTrack=this.track,tracks=this.player_.textTracks();if(_MenuItem.prototype.handleClick.call(this,event),tracks)for(var i=0;i<tracks.length;i++){var track=tracks[i];-1!==this.kinds.indexOf(track.kind)&&(track===referenceTrack?"showing"!==track.mode&&(track.mode="showing"):"disabled"!==track.mode&&(track.mode="disabled"))}},_proto.handleTracksChange=function(event){var shouldBeSelected="showing"===this.track.mode;shouldBeSelected!==this.isSelected_&&this.selected(shouldBeSelected)},_proto.handleSelectedLanguageChange=function(event){if("showing"===this.track.mode){var selectedLanguage=this.player_.cache_.selectedLanguage;if(selectedLanguage&&selectedLanguage.enabled&&selectedLanguage.language===this.track.language&&selectedLanguage.kind!==this.track.kind)return;this.player_.cache_.selectedLanguage={enabled:!0,language:this.track.language,kind:this.track.kind}}},_proto.dispose=function(){this.track=null,_MenuItem.prototype.dispose.call(this)},TextTrackMenuItem}(MenuItem);Component$1.registerComponent("TextTrackMenuItem",TextTrackMenuItem);var OffTextTrackMenuItem=function(_TextTrackMenuItem){function OffTextTrackMenuItem(player,options){return options.track={player:player,kind:options.kind,kinds:options.kinds,default:!1,mode:"disabled"},options.kinds||(options.kinds=[options.kind]),options.label?options.track.label=options.label:options.track.label=options.kinds.join(" and ")+" off",options.selectable=!0,options.multiSelectable=!1,_TextTrackMenuItem.call(this,player,options)||this}inheritsLoose(OffTextTrackMenuItem,_TextTrackMenuItem);var _proto=OffTextTrackMenuItem.prototype;return _proto.handleTracksChange=function(event){for(var tracks=this.player().textTracks(),shouldBeSelected=!0,i=0,l=tracks.length;i<l;i++){var track=tracks[i];if(this.options_.kinds.indexOf(track.kind)>-1&&"showing"===track.mode){shouldBeSelected=!1;break}}shouldBeSelected!==this.isSelected_&&this.selected(shouldBeSelected)},_proto.handleSelectedLanguageChange=function(event){for(var tracks=this.player().textTracks(),allHidden=!0,i=0,l=tracks.length;i<l;i++){var track=tracks[i];if(["captions","descriptions","subtitles"].indexOf(track.kind)>-1&&"showing"===track.mode){allHidden=!1;break}}allHidden&&(this.player_.cache_.selectedLanguage={enabled:!1})},OffTextTrackMenuItem}(TextTrackMenuItem);Component$1.registerComponent("OffTextTrackMenuItem",OffTextTrackMenuItem);var TextTrackButton=function(_TrackButton){function TextTrackButton(player,options){return void 0===options&&(options={}),options.tracks=player.textTracks(),_TrackButton.call(this,player,options)||this}return inheritsLoose(TextTrackButton,_TrackButton),TextTrackButton.prototype.createItems=function(items,TrackMenuItem){var label;void 0===items&&(items=[]),void 0===TrackMenuItem&&(TrackMenuItem=TextTrackMenuItem),this.label_&&(label=this.label_+" off"),items.push(new OffTextTrackMenuItem(this.player_,{kinds:this.kinds_,kind:this.kind_,label:label})),this.hideThreshold_+=1;var tracks=this.player_.textTracks();Array.isArray(this.kinds_)||(this.kinds_=[this.kind_]);for(var i=0;i<tracks.length;i++){var track=tracks[i];if(this.kinds_.indexOf(track.kind)>-1){var item=new TrackMenuItem(this.player_,{track:track,kinds:this.kinds_,kind:this.kind_,selectable:!0,multiSelectable:!1});item.addClass("vjs-"+track.kind+"-menu-item"),items.push(item)}}return items},TextTrackButton}(TrackButton);Component$1.registerComponent("TextTrackButton",TextTrackButton);var ChaptersTrackMenuItem=function(_MenuItem){function ChaptersTrackMenuItem(player,options){var _this,track=options.track,cue=options.cue,currentTime=player.currentTime();return options.selectable=!0,options.multiSelectable=!1,options.label=cue.text,options.selected=cue.startTime<=currentTime&&currentTime<cue.endTime,(_this=_MenuItem.call(this,player,options)||this).track=track,_this.cue=cue,_this}return inheritsLoose(ChaptersTrackMenuItem,_MenuItem),ChaptersTrackMenuItem.prototype.handleClick=function(event){_MenuItem.prototype.handleClick.call(this),this.player_.currentTime(this.cue.startTime)},ChaptersTrackMenuItem}(MenuItem);Component$1.registerComponent("ChaptersTrackMenuItem",ChaptersTrackMenuItem);var ChaptersButton=function(_TextTrackButton){function ChaptersButton(player,options,ready){var _this;return(_this=_TextTrackButton.call(this,player,options,ready)||this).selectCurrentItem_=function(){_this.items.forEach((function(item){item.selected(_this.track_.activeCues[0]===item.cue)}))},_this}inheritsLoose(ChaptersButton,_TextTrackButton);var _proto=ChaptersButton.prototype;return _proto.buildCSSClass=function(){return"vjs-chapters-button "+_TextTrackButton.prototype.buildCSSClass.call(this)},_proto.buildWrapperCSSClass=function(){return"vjs-chapters-button "+_TextTrackButton.prototype.buildWrapperCSSClass.call(this)},_proto.update=function(event){if(!event||!event.track||"chapters"===event.track.kind){var track=this.findChaptersTrack();track!==this.track_?(this.setTrack(track),_TextTrackButton.prototype.update.call(this)):(!this.items||track&&track.cues&&track.cues.length!==this.items.length)&&_TextTrackButton.prototype.update.call(this)}},_proto.setTrack=function(track){if(this.track_!==track){if(this.updateHandler_||(this.updateHandler_=this.update.bind(this)),this.track_){var remoteTextTrackEl=this.player_.remoteTextTrackEls().getTrackElementByTrack_(this.track_);remoteTextTrackEl&&remoteTextTrackEl.removeEventListener("load",this.updateHandler_),this.track_.removeEventListener("cuechange",this.selectCurrentItem_),this.track_=null}if(this.track_=track,this.track_){this.track_.mode="hidden";var _remoteTextTrackEl=this.player_.remoteTextTrackEls().getTrackElementByTrack_(this.track_);_remoteTextTrackEl&&_remoteTextTrackEl.addEventListener("load",this.updateHandler_),this.track_.addEventListener("cuechange",this.selectCurrentItem_)}}},_proto.findChaptersTrack=function(){for(var tracks=this.player_.textTracks()||[],i=tracks.length-1;i>=0;i--){var track=tracks[i];if(track.kind===this.kind_)return track}},_proto.getMenuCaption=function(){return this.track_&&this.track_.label?this.track_.label:this.localize(toTitleCase$1(this.kind_))},_proto.createMenu=function(){return this.options_.title=this.getMenuCaption(),_TextTrackButton.prototype.createMenu.call(this)},_proto.createItems=function(){var items=[];if(!this.track_)return items;var cues=this.track_.cues;if(!cues)return items;for(var i=0,l=cues.length;i<l;i++){var cue=cues[i],mi=new ChaptersTrackMenuItem(this.player_,{track:this.track_,cue:cue});items.push(mi)}return items},ChaptersButton}(TextTrackButton);ChaptersButton.prototype.kind_="chapters",ChaptersButton.prototype.controlText_="Chapters",Component$1.registerComponent("ChaptersButton",ChaptersButton);var DescriptionsButton=function(_TextTrackButton){function DescriptionsButton(player,options,ready){var _this;_this=_TextTrackButton.call(this,player,options,ready)||this;var tracks=player.textTracks(),changeHandler=bind(assertThisInitialized(_this),_this.handleTracksChange);return tracks.addEventListener("change",changeHandler),_this.on("dispose",(function(){tracks.removeEventListener("change",changeHandler)})),_this}inheritsLoose(DescriptionsButton,_TextTrackButton);var _proto=DescriptionsButton.prototype;return _proto.handleTracksChange=function(event){for(var tracks=this.player().textTracks(),disabled=!1,i=0,l=tracks.length;i<l;i++){var track=tracks[i];if(track.kind!==this.kind_&&"showing"===track.mode){disabled=!0;break}}disabled?this.disable():this.enable()},_proto.buildCSSClass=function(){return"vjs-descriptions-button "+_TextTrackButton.prototype.buildCSSClass.call(this)},_proto.buildWrapperCSSClass=function(){return"vjs-descriptions-button "+_TextTrackButton.prototype.buildWrapperCSSClass.call(this)},DescriptionsButton}(TextTrackButton);DescriptionsButton.prototype.kind_="descriptions",DescriptionsButton.prototype.controlText_="Descriptions",Component$1.registerComponent("DescriptionsButton",DescriptionsButton);var SubtitlesButton=function(_TextTrackButton){function SubtitlesButton(player,options,ready){return _TextTrackButton.call(this,player,options,ready)||this}inheritsLoose(SubtitlesButton,_TextTrackButton);var _proto=SubtitlesButton.prototype;return _proto.buildCSSClass=function(){return"vjs-subtitles-button "+_TextTrackButton.prototype.buildCSSClass.call(this)},_proto.buildWrapperCSSClass=function(){return"vjs-subtitles-button "+_TextTrackButton.prototype.buildWrapperCSSClass.call(this)},SubtitlesButton}(TextTrackButton);SubtitlesButton.prototype.kind_="subtitles",SubtitlesButton.prototype.controlText_="Subtitles",Component$1.registerComponent("SubtitlesButton",SubtitlesButton);var CaptionSettingsMenuItem=function(_TextTrackMenuItem){function CaptionSettingsMenuItem(player,options){var _this;return options.track={player:player,kind:options.kind,label:options.kind+" settings",selectable:!1,default:!1,mode:"disabled"},options.selectable=!1,options.name="CaptionSettingsMenuItem",(_this=_TextTrackMenuItem.call(this,player,options)||this).addClass("vjs-texttrack-settings"),_this.controlText(", opens "+options.kind+" settings dialog"),_this}return inheritsLoose(CaptionSettingsMenuItem,_TextTrackMenuItem),CaptionSettingsMenuItem.prototype.handleClick=function(event){this.player().getChild("textTrackSettings").open()},CaptionSettingsMenuItem}(TextTrackMenuItem);Component$1.registerComponent("CaptionSettingsMenuItem",CaptionSettingsMenuItem);var CaptionsButton=function(_TextTrackButton){function CaptionsButton(player,options,ready){return _TextTrackButton.call(this,player,options,ready)||this}inheritsLoose(CaptionsButton,_TextTrackButton);var _proto=CaptionsButton.prototype;return _proto.buildCSSClass=function(){return"vjs-captions-button "+_TextTrackButton.prototype.buildCSSClass.call(this)},_proto.buildWrapperCSSClass=function(){return"vjs-captions-button "+_TextTrackButton.prototype.buildWrapperCSSClass.call(this)},_proto.createItems=function(){var items=[];return this.player().tech_&&this.player().tech_.featuresNativeTextTracks||!this.player().getChild("textTrackSettings")||(items.push(new CaptionSettingsMenuItem(this.player_,{kind:this.kind_})),this.hideThreshold_+=1),_TextTrackButton.prototype.createItems.call(this,items)},CaptionsButton}(TextTrackButton);CaptionsButton.prototype.kind_="captions",CaptionsButton.prototype.controlText_="Captions",Component$1.registerComponent("CaptionsButton",CaptionsButton);var SubsCapsMenuItem=function(_TextTrackMenuItem){function SubsCapsMenuItem(){return _TextTrackMenuItem.apply(this,arguments)||this}return inheritsLoose(SubsCapsMenuItem,_TextTrackMenuItem),SubsCapsMenuItem.prototype.createEl=function(type,props,attrs){var el=_TextTrackMenuItem.prototype.createEl.call(this,type,props,attrs),parentSpan=el.querySelector(".vjs-menu-item-text");return"captions"===this.options_.track.kind&&(parentSpan.appendChild(createEl("span",{className:"vjs-icon-placeholder"},{"aria-hidden":!0})),parentSpan.appendChild(createEl("span",{className:"vjs-control-text",textContent:" "+this.localize("Captions")}))),el},SubsCapsMenuItem}(TextTrackMenuItem);Component$1.registerComponent("SubsCapsMenuItem",SubsCapsMenuItem);var SubsCapsButton=function(_TextTrackButton){function SubsCapsButton(player,options){var _this;return void 0===options&&(options={}),(_this=_TextTrackButton.call(this,player,options)||this).label_="subtitles",["en","en-us","en-ca","fr-ca"].indexOf(_this.player_.language_)>-1&&(_this.label_="captions"),_this.menuButton_.controlText(toTitleCase$1(_this.label_)),_this}inheritsLoose(SubsCapsButton,_TextTrackButton);var _proto=SubsCapsButton.prototype;return _proto.buildCSSClass=function(){return"vjs-subs-caps-button "+_TextTrackButton.prototype.buildCSSClass.call(this)},_proto.buildWrapperCSSClass=function(){return"vjs-subs-caps-button "+_TextTrackButton.prototype.buildWrapperCSSClass.call(this)},_proto.createItems=function(){var items=[];return this.player().tech_&&this.player().tech_.featuresNativeTextTracks||!this.player().getChild("textTrackSettings")||(items.push(new CaptionSettingsMenuItem(this.player_,{kind:this.label_})),this.hideThreshold_+=1),items=_TextTrackButton.prototype.createItems.call(this,items,SubsCapsMenuItem)},SubsCapsButton}(TextTrackButton);SubsCapsButton.prototype.kinds_=["captions","subtitles"],SubsCapsButton.prototype.controlText_="Subtitles",Component$1.registerComponent("SubsCapsButton",SubsCapsButton);var AudioTrackMenuItem=function(_MenuItem){function AudioTrackMenuItem(player,options){var _this,track=options.track,tracks=player.audioTracks();options.label=track.label||track.language||"Unknown",options.selected=track.enabled,(_this=_MenuItem.call(this,player,options)||this).track=track,_this.addClass("vjs-"+track.kind+"-menu-item");var changeHandler=function(){for(var _len=arguments.length,args=new Array(_len),_key=0;_key<_len;_key++)args[_key]=arguments[_key];_this.handleTracksChange.apply(assertThisInitialized(_this),args)};return tracks.addEventListener("change",changeHandler),_this.on("dispose",(function(){tracks.removeEventListener("change",changeHandler)})),_this}inheritsLoose(AudioTrackMenuItem,_MenuItem);var _proto=AudioTrackMenuItem.prototype;return _proto.createEl=function(type,props,attrs){var el=_MenuItem.prototype.createEl.call(this,type,props,attrs),parentSpan=el.querySelector(".vjs-menu-item-text");return"main-desc"===this.options_.track.kind&&(parentSpan.appendChild(createEl("span",{className:"vjs-icon-placeholder"},{"aria-hidden":!0})),parentSpan.appendChild(createEl("span",{className:"vjs-control-text",textContent:" "+this.localize("Descriptions")}))),el},_proto.handleClick=function(event){if(_MenuItem.prototype.handleClick.call(this,event),this.track.enabled=!0,this.player_.tech_.featuresNativeAudioTracks)for(var tracks=this.player_.audioTracks(),i=0;i<tracks.length;i++){var track=tracks[i];track!==this.track&&(track.enabled=track===this.track)}},_proto.handleTracksChange=function(event){this.selected(this.track.enabled)},AudioTrackMenuItem}(MenuItem);Component$1.registerComponent("AudioTrackMenuItem",AudioTrackMenuItem);var AudioTrackButton=function(_TrackButton){function AudioTrackButton(player,options){return void 0===options&&(options={}),options.tracks=player.audioTracks(),_TrackButton.call(this,player,options)||this}inheritsLoose(AudioTrackButton,_TrackButton);var _proto=AudioTrackButton.prototype;return _proto.buildCSSClass=function(){return"vjs-audio-button "+_TrackButton.prototype.buildCSSClass.call(this)},_proto.buildWrapperCSSClass=function(){return"vjs-audio-button "+_TrackButton.prototype.buildWrapperCSSClass.call(this)},_proto.createItems=function(items){void 0===items&&(items=[]),this.hideThreshold_=1;for(var tracks=this.player_.audioTracks(),i=0;i<tracks.length;i++){var track=tracks[i];items.push(new AudioTrackMenuItem(this.player_,{track:track,selectable:!0,multiSelectable:!1}))}return items},AudioTrackButton}(TrackButton);AudioTrackButton.prototype.controlText_="Audio Track",Component$1.registerComponent("AudioTrackButton",AudioTrackButton);var PlaybackRateMenuItem=function(_MenuItem){function PlaybackRateMenuItem(player,options){var _this,label=options.rate,rate=parseFloat(label,10);return options.label=label,options.selected=rate===player.playbackRate(),options.selectable=!0,options.multiSelectable=!1,(_this=_MenuItem.call(this,player,options)||this).label=label,_this.rate=rate,_this.on(player,"ratechange",(function(e){return _this.update(e)})),_this}inheritsLoose(PlaybackRateMenuItem,_MenuItem);var _proto=PlaybackRateMenuItem.prototype;return _proto.handleClick=function(event){_MenuItem.prototype.handleClick.call(this),this.player().playbackRate(this.rate)},_proto.update=function(event){this.selected(this.player().playbackRate()===this.rate)},PlaybackRateMenuItem}(MenuItem);PlaybackRateMenuItem.prototype.contentElType="button",Component$1.registerComponent("PlaybackRateMenuItem",PlaybackRateMenuItem);var PlaybackRateMenuButton=function(_MenuButton){function PlaybackRateMenuButton(player,options){var _this;return(_this=_MenuButton.call(this,player,options)||this).menuButton_.el_.setAttribute("aria-describedby",_this.labelElId_),_this.updateVisibility(),_this.updateLabel(),_this.on(player,"loadstart",(function(e){return _this.updateVisibility(e)})),_this.on(player,"ratechange",(function(e){return _this.updateLabel(e)})),_this.on(player,"playbackrateschange",(function(e){return _this.handlePlaybackRateschange(e)})),_this}inheritsLoose(PlaybackRateMenuButton,_MenuButton);var _proto=PlaybackRateMenuButton.prototype;return _proto.createEl=function(){var el=_MenuButton.prototype.createEl.call(this);return this.labelElId_="vjs-playback-rate-value-label-"+this.id_,this.labelEl_=createEl("div",{className:"vjs-playback-rate-value",id:this.labelElId_,textContent:"1x"}),el.appendChild(this.labelEl_),el},_proto.dispose=function(){this.labelEl_=null,_MenuButton.prototype.dispose.call(this)},_proto.buildCSSClass=function(){return"vjs-playback-rate "+_MenuButton.prototype.buildCSSClass.call(this)},_proto.buildWrapperCSSClass=function(){return"vjs-playback-rate "+_MenuButton.prototype.buildWrapperCSSClass.call(this)},_proto.createItems=function(){for(var rates=this.playbackRates(),items=[],i=rates.length-1;i>=0;i--)items.push(new PlaybackRateMenuItem(this.player(),{rate:rates[i]+"x"}));return items},_proto.updateARIAAttributes=function(){this.el().setAttribute("aria-valuenow",this.player().playbackRate())},_proto.handleClick=function(event){var currentRate=this.player().playbackRate(),rates=this.playbackRates(),newIndex=(rates.indexOf(currentRate)+1)%rates.length;this.player().playbackRate(rates[newIndex])},_proto.handlePlaybackRateschange=function(event){this.update()},_proto.playbackRates=function(){var player=this.player();return player.playbackRates&&player.playbackRates()||[]},_proto.playbackRateSupported=function(){return this.player().tech_&&this.player().tech_.featuresPlaybackRate&&this.playbackRates()&&this.playbackRates().length>0},_proto.updateVisibility=function(event){this.playbackRateSupported()?this.removeClass("vjs-hidden"):this.addClass("vjs-hidden")},_proto.updateLabel=function(event){this.playbackRateSupported()&&(this.labelEl_.textContent=this.player().playbackRate()+"x")},PlaybackRateMenuButton}(MenuButton);PlaybackRateMenuButton.prototype.controlText_="Playback Rate",Component$1.registerComponent("PlaybackRateMenuButton",PlaybackRateMenuButton);var Spacer=function(_Component){function Spacer(){return _Component.apply(this,arguments)||this}inheritsLoose(Spacer,_Component);var _proto=Spacer.prototype;return _proto.buildCSSClass=function(){return"vjs-spacer "+_Component.prototype.buildCSSClass.call(this)},_proto.createEl=function(tag,props,attributes){return void 0===tag&&(tag="div"),void 0===props&&(props={}),void 0===attributes&&(attributes={}),props.className||(props.className=this.buildCSSClass()),_Component.prototype.createEl.call(this,tag,props,attributes)},Spacer}(Component$1);Component$1.registerComponent("Spacer",Spacer);var CustomControlSpacer=function(_Spacer){function CustomControlSpacer(){return _Spacer.apply(this,arguments)||this}inheritsLoose(CustomControlSpacer,_Spacer);var _proto=CustomControlSpacer.prototype;return _proto.buildCSSClass=function(){return"vjs-custom-control-spacer "+_Spacer.prototype.buildCSSClass.call(this)},_proto.createEl=function(){return _Spacer.prototype.createEl.call(this,"div",{className:this.buildCSSClass(),textContent:" "})},CustomControlSpacer}(Spacer);Component$1.registerComponent("CustomControlSpacer",CustomControlSpacer);var ControlBar=function(_Component){function ControlBar(){return _Component.apply(this,arguments)||this}return inheritsLoose(ControlBar,_Component),ControlBar.prototype.createEl=function(){return _Component.prototype.createEl.call(this,"div",{className:"vjs-control-bar",dir:"ltr"})},ControlBar}(Component$1);ControlBar.prototype.options_={children:["playToggle","volumePanel","currentTimeDisplay","timeDivider","durationDisplay","progressControl","liveDisplay","seekToLive","remainingTimeDisplay","customControlSpacer","playbackRateMenuButton","chaptersButton","descriptionsButton","subsCapsButton","audioTrackButton","fullscreenToggle"]},"exitPictureInPicture"in document&&ControlBar.prototype.options_.children.splice(ControlBar.prototype.options_.children.length-1,0,"pictureInPictureToggle"),Component$1.registerComponent("ControlBar",ControlBar);var ErrorDisplay=function(_ModalDialog){function ErrorDisplay(player,options){var _this;return(_this=_ModalDialog.call(this,player,options)||this).on(player,"error",(function(e){return _this.open(e)})),_this}inheritsLoose(ErrorDisplay,_ModalDialog);var _proto=ErrorDisplay.prototype;return _proto.buildCSSClass=function(){return"vjs-error-display "+_ModalDialog.prototype.buildCSSClass.call(this)},_proto.content=function(){var error=this.player().error();return error?this.localize(error.message):""},ErrorDisplay}(ModalDialog);ErrorDisplay.prototype.options_=_extends_1({},ModalDialog.prototype.options_,{pauseOnOpen:!1,fillAlways:!0,temporary:!1,uncloseable:!0}),Component$1.registerComponent("ErrorDisplay",ErrorDisplay);var COLOR_BLACK=["#000","Black"],COLOR_BLUE=["#00F","Blue"],COLOR_CYAN=["#0FF","Cyan"],COLOR_GREEN=["#0F0","Green"],COLOR_MAGENTA=["#F0F","Magenta"],COLOR_RED=["#F00","Red"],COLOR_WHITE=["#FFF","White"],COLOR_YELLOW=["#FF0","Yellow"],OPACITY_OPAQUE=["1","Opaque"],OPACITY_SEMI=["0.5","Semi-Transparent"],OPACITY_TRANS=["0","Transparent"],selectConfigs={backgroundColor:{selector:".vjs-bg-color > select",id:"captions-background-color-%s",label:"Color",options:[COLOR_BLACK,COLOR_WHITE,COLOR_RED,COLOR_GREEN,COLOR_BLUE,COLOR_YELLOW,COLOR_MAGENTA,COLOR_CYAN]},backgroundOpacity:{selector:".vjs-bg-opacity > select",id:"captions-background-opacity-%s",label:"Transparency",options:[OPACITY_OPAQUE,OPACITY_SEMI,OPACITY_TRANS]},color:{selector:".vjs-fg-color > select",id:"captions-foreground-color-%s",label:"Color",options:[COLOR_WHITE,COLOR_BLACK,COLOR_RED,COLOR_GREEN,COLOR_BLUE,COLOR_YELLOW,COLOR_MAGENTA,COLOR_CYAN]},edgeStyle:{selector:".vjs-edge-style > select",id:"%s",label:"Text Edge Style",options:[["none","None"],["raised","Raised"],["depressed","Depressed"],["uniform","Uniform"],["dropshadow","Dropshadow"]]},fontFamily:{selector:".vjs-font-family > select",id:"captions-font-family-%s",label:"Font Family",options:[["proportionalSansSerif","Proportional Sans-Serif"],["monospaceSansSerif","Monospace Sans-Serif"],["proportionalSerif","Proportional Serif"],["monospaceSerif","Monospace Serif"],["casual","Casual"],["script","Script"],["small-caps","Small Caps"]]},fontPercent:{selector:".vjs-font-percent > select",id:"captions-font-size-%s",label:"Font Size",options:[["0.50","50%"],["0.75","75%"],["1.00","100%"],["1.25","125%"],["1.50","150%"],["1.75","175%"],["2.00","200%"],["3.00","300%"],["4.00","400%"]],default:2,parser:function(v){return"1.00"===v?null:Number(v)}},textOpacity:{selector:".vjs-text-opacity > select",id:"captions-foreground-opacity-%s",label:"Transparency",options:[OPACITY_OPAQUE,OPACITY_SEMI]},windowColor:{selector:".vjs-window-color > select",id:"captions-window-color-%s",label:"Color"},windowOpacity:{selector:".vjs-window-opacity > select",id:"captions-window-opacity-%s",label:"Transparency",options:[OPACITY_TRANS,OPACITY_SEMI,OPACITY_OPAQUE]}};function parseOptionValue(value,parser){if(parser&&(value=parser(value)),value&&"none"!==value)return value}selectConfigs.windowColor.options=selectConfigs.backgroundColor.options;var TextTrackSettings=function(_ModalDialog){function TextTrackSettings(player,options){var _this;return options.temporary=!1,(_this=_ModalDialog.call(this,player,options)||this).updateDisplay=_this.updateDisplay.bind(assertThisInitialized(_this)),_this.fill(),_this.hasBeenOpened_=_this.hasBeenFilled_=!0,_this.endDialog=createEl("p",{className:"vjs-control-text",textContent:_this.localize("End of dialog window.")}),_this.el().appendChild(_this.endDialog),_this.setDefaults(),void 0===options.persistTextTrackSettings&&(_this.options_.persistTextTrackSettings=_this.options_.playerOptions.persistTextTrackSettings),_this.on(_this.$(".vjs-done-button"),"click",(function(){_this.saveSettings(),_this.close()})),_this.on(_this.$(".vjs-default-button"),"click",(function(){_this.setDefaults(),_this.updateDisplay()})),each(selectConfigs,(function(config){_this.on(_this.$(config.selector),"change",_this.updateDisplay)})),_this.options_.persistTextTrackSettings&&_this.restoreSettings(),_this}inheritsLoose(TextTrackSettings,_ModalDialog);var _proto=TextTrackSettings.prototype;return _proto.dispose=function(){this.endDialog=null,_ModalDialog.prototype.dispose.call(this)},_proto.createElSelect_=function(key,legendId,type){var _this2=this;void 0===legendId&&(legendId=""),void 0===type&&(type="label");var config=selectConfigs[key],id=config.id.replace("%s",this.id_),selectLabelledbyIds=[legendId,id].join(" ").trim();return["<"+type+' id="'+id+'" class="'+("label"===type?"vjs-label":"")+'">',this.localize(config.label),"</"+type+">",'<select aria-labelledby="'+selectLabelledbyIds+'">'].concat(config.options.map((function(o){var optionId=id+"-"+o[1].replace(/\W+/g,"");return['<option id="'+optionId+'" value="'+o[0]+'" ','aria-labelledby="'+selectLabelledbyIds+" "+optionId+'">',_this2.localize(o[1]),"</option>"].join("")}))).concat("</select>").join("")},_proto.createElFgColor_=function(){var legendId="captions-text-legend-"+this.id_;return['<fieldset class="vjs-fg-color vjs-track-setting">','<legend id="'+legendId+'">',this.localize("Text"),"</legend>",this.createElSelect_("color",legendId),'<span class="vjs-text-opacity vjs-opacity">',this.createElSelect_("textOpacity",legendId),"</span>","</fieldset>"].join("")},_proto.createElBgColor_=function(){var legendId="captions-background-"+this.id_;return['<fieldset class="vjs-bg-color vjs-track-setting">','<legend id="'+legendId+'">',this.localize("Background"),"</legend>",this.createElSelect_("backgroundColor",legendId),'<span class="vjs-bg-opacity vjs-opacity">',this.createElSelect_("backgroundOpacity",legendId),"</span>","</fieldset>"].join("")},_proto.createElWinColor_=function(){var legendId="captions-window-"+this.id_;return['<fieldset class="vjs-window-color vjs-track-setting">','<legend id="'+legendId+'">',this.localize("Window"),"</legend>",this.createElSelect_("windowColor",legendId),'<span class="vjs-window-opacity vjs-opacity">',this.createElSelect_("windowOpacity",legendId),"</span>","</fieldset>"].join("")},_proto.createElColors_=function(){return createEl("div",{className:"vjs-track-settings-colors",innerHTML:[this.createElFgColor_(),this.createElBgColor_(),this.createElWinColor_()].join("")})},_proto.createElFont_=function(){return createEl("div",{className:"vjs-track-settings-font",innerHTML:['<fieldset class="vjs-font-percent vjs-track-setting">',this.createElSelect_("fontPercent","","legend"),"</fieldset>",'<fieldset class="vjs-edge-style vjs-track-setting">',this.createElSelect_("edgeStyle","","legend"),"</fieldset>",'<fieldset class="vjs-font-family vjs-track-setting">',this.createElSelect_("fontFamily","","legend"),"</fieldset>"].join("")})},_proto.createElControls_=function(){var defaultsDescription=this.localize("restore all settings to the default values");return createEl("div",{className:"vjs-track-settings-controls",innerHTML:['<button type="button" class="vjs-default-button" title="'+defaultsDescription+'">',this.localize("Reset"),'<span class="vjs-control-text"> '+defaultsDescription+"</span>","</button>",'<button type="button" class="vjs-done-button">'+this.localize("Done")+"</button>"].join("")})},_proto.content=function(){return[this.createElColors_(),this.createElFont_(),this.createElControls_()]},_proto.label=function(){return this.localize("Caption Settings Dialog")},_proto.description=function(){return this.localize("Beginning of dialog window. Escape will cancel and close the window.")},_proto.buildCSSClass=function(){return _ModalDialog.prototype.buildCSSClass.call(this)+" vjs-text-track-settings"},_proto.getValues=function(){var object,fn,initial,_this3=this;return fn=function(accum,config,key){var el,parser,value=(el=_this3.$(config.selector),parser=config.parser,parseOptionValue(el.options[el.options.selectedIndex].value,parser));return void 0!==value&&(accum[key]=value),accum},void 0===(initial={})&&(initial=0),keys(object=selectConfigs).reduce((function(accum,key){return fn(accum,object[key],key)}),initial)},_proto.setValues=function(values){var _this4=this;each(selectConfigs,(function(config,key){!function(el,value,parser){if(value)for(var i=0;i<el.options.length;i++)if(parseOptionValue(el.options[i].value,parser)===value){el.selectedIndex=i;break}}(_this4.$(config.selector),values[key],config.parser)}))},_proto.setDefaults=function(){var _this5=this;each(selectConfigs,(function(config){var index=config.hasOwnProperty("default")?config.default:0;_this5.$(config.selector).selectedIndex=index}))},_proto.restoreSettings=function(){var values;try{values=JSON.parse(window.localStorage.getItem("vjs-text-track-settings"))}catch(err){log$1.warn(err)}values&&this.setValues(values)},_proto.saveSettings=function(){if(this.options_.persistTextTrackSettings){var values=this.getValues();try{Object.keys(values).length?window.localStorage.setItem("vjs-text-track-settings",JSON.stringify(values)):window.localStorage.removeItem("vjs-text-track-settings")}catch(err){log$1.warn(err)}}},_proto.updateDisplay=function(){var ttDisplay=this.player_.getChild("textTrackDisplay");ttDisplay&&ttDisplay.updateDisplay()},_proto.conditionalBlur_=function(){this.previouslyActiveEl_=null;var cb=this.player_.controlBar,subsCapsBtn=cb&&cb.subsCapsButton,ccBtn=cb&&cb.captionsButton;subsCapsBtn?subsCapsBtn.focus():ccBtn&&ccBtn.focus()},TextTrackSettings}(ModalDialog);Component$1.registerComponent("TextTrackSettings",TextTrackSettings);var ResizeManager=function(_Component){function ResizeManager(player,options){var _this,RESIZE_OBSERVER_AVAILABLE=options.ResizeObserver||window.ResizeObserver;null===options.ResizeObserver&&(RESIZE_OBSERVER_AVAILABLE=!1);var options_=mergeOptions$3({createEl:!RESIZE_OBSERVER_AVAILABLE,reportTouchActivity:!1},options);return(_this=_Component.call(this,player,options_)||this).ResizeObserver=options.ResizeObserver||window.ResizeObserver,_this.loadListener_=null,_this.resizeObserver_=null,_this.debouncedHandler_=function(func,wait,immediate,context){var timeout;void 0===context&&(context=window);var debounced=function(){var self=this,args=arguments,_later=function(){timeout=null,_later=null,immediate||func.apply(self,args)};!timeout&&immediate&&func.apply(self,args),context.clearTimeout(timeout),timeout=context.setTimeout(_later,wait)};return debounced.cancel=function(){context.clearTimeout(timeout),timeout=null},debounced}((function(){_this.resizeHandler()}),100,!1,assertThisInitialized(_this)),RESIZE_OBSERVER_AVAILABLE?(_this.resizeObserver_=new _this.ResizeObserver(_this.debouncedHandler_),_this.resizeObserver_.observe(player.el())):(_this.loadListener_=function(){if(_this.el_&&_this.el_.contentWindow){var debouncedHandler_=_this.debouncedHandler_,unloadListener_=_this.unloadListener_=function(){off(this,"resize",debouncedHandler_),off(this,"unload",unloadListener_),unloadListener_=null};on(_this.el_.contentWindow,"unload",unloadListener_),on(_this.el_.contentWindow,"resize",debouncedHandler_)}},_this.one("load",_this.loadListener_)),_this}inheritsLoose(ResizeManager,_Component);var _proto=ResizeManager.prototype;return _proto.createEl=function(){return _Component.prototype.createEl.call(this,"iframe",{className:"vjs-resize-manager",tabIndex:-1,title:this.localize("No content")},{"aria-hidden":"true"})},_proto.resizeHandler=function(){this.player_&&this.player_.trigger&&this.player_.trigger("playerresize")},_proto.dispose=function(){this.debouncedHandler_&&this.debouncedHandler_.cancel(),this.resizeObserver_&&(this.player_.el()&&this.resizeObserver_.unobserve(this.player_.el()),this.resizeObserver_.disconnect()),this.loadListener_&&this.off("load",this.loadListener_),this.el_&&this.el_.contentWindow&&this.unloadListener_&&this.unloadListener_.call(this.el_.contentWindow),this.ResizeObserver=null,this.resizeObserver=null,this.debouncedHandler_=null,this.loadListener_=null,_Component.prototype.dispose.call(this)},ResizeManager}(Component$1);Component$1.registerComponent("ResizeManager",ResizeManager);var defaults={trackingThreshold:20,liveTolerance:15},LiveTracker=function(_Component){function LiveTracker(player,options){var _this,options_=mergeOptions$3(defaults,options,{createEl:!1});return(_this=_Component.call(this,player,options_)||this).handleVisibilityChange_=function(e){return _this.handleVisibilityChange(e)},_this.trackLiveHandler_=function(){return _this.trackLive_()},_this.handlePlay_=function(e){return _this.handlePlay(e)},_this.handleFirstTimeupdate_=function(e){return _this.handleFirstTimeupdate(e)},_this.handleSeeked_=function(e){return _this.handleSeeked(e)},_this.seekToLiveEdge_=function(e){return _this.seekToLiveEdge(e)},_this.reset_(),_this.on(_this.player_,"durationchange",(function(e){return _this.handleDurationchange(e)})),_this.on(_this.player_,"canplay",(function(){return _this.toggleTracking()})),IE_VERSION&&"hidden"in document&&"visibilityState"in document&&_this.on(document,"visibilitychange",_this.handleVisibilityChange_),_this}inheritsLoose(LiveTracker,_Component);var _proto=LiveTracker.prototype;return _proto.handleVisibilityChange=function(){this.player_.duration()===1/0&&(document.hidden?this.stopTracking():this.startTracking())},_proto.trackLive_=function(){var seekable=this.player_.seekable();if(seekable&&seekable.length){var newTime=Number(window.performance.now().toFixed(4)),deltaTime=-1===this.lastTime_?0:(newTime-this.lastTime_)/1e3;this.lastTime_=newTime,this.pastSeekEnd_=this.pastSeekEnd()+deltaTime;var liveCurrentTime=this.liveCurrentTime(),currentTime=this.player_.currentTime(),isBehind=this.player_.paused()||this.seekedBehindLive_||Math.abs(liveCurrentTime-currentTime)>this.options_.liveTolerance;this.timeupdateSeen_&&liveCurrentTime!==1/0||(isBehind=!1),isBehind!==this.behindLiveEdge_&&(this.behindLiveEdge_=isBehind,this.trigger("liveedgechange"))}},_proto.handleDurationchange=function(){this.toggleTracking()},_proto.toggleTracking=function(){this.player_.duration()===1/0&&this.liveWindow()>=this.options_.trackingThreshold?(this.player_.options_.liveui&&this.player_.addClass("vjs-liveui"),this.startTracking()):(this.player_.removeClass("vjs-liveui"),this.stopTracking())},_proto.startTracking=function(){this.isTracking()||(this.timeupdateSeen_||(this.timeupdateSeen_=this.player_.hasStarted()),this.trackingInterval_=this.setInterval(this.trackLiveHandler_,30),this.trackLive_(),this.on(this.player_,["play","pause"],this.trackLiveHandler_),this.timeupdateSeen_?this.on(this.player_,"seeked",this.handleSeeked_):(this.one(this.player_,"play",this.handlePlay_),this.one(this.player_,"timeupdate",this.handleFirstTimeupdate_)))},_proto.handleFirstTimeupdate=function(){this.timeupdateSeen_=!0,this.on(this.player_,"seeked",this.handleSeeked_)},_proto.handleSeeked=function(){var timeDiff=Math.abs(this.liveCurrentTime()-this.player_.currentTime());this.seekedBehindLive_=this.nextSeekedFromUser_&&timeDiff>2,this.nextSeekedFromUser_=!1,this.trackLive_()},_proto.handlePlay=function(){this.one(this.player_,"timeupdate",this.seekToLiveEdge_)},_proto.reset_=function(){this.lastTime_=-1,this.pastSeekEnd_=0,this.lastSeekEnd_=-1,this.behindLiveEdge_=!0,this.timeupdateSeen_=!1,this.seekedBehindLive_=!1,this.nextSeekedFromUser_=!1,this.clearInterval(this.trackingInterval_),this.trackingInterval_=null,this.off(this.player_,["play","pause"],this.trackLiveHandler_),this.off(this.player_,"seeked",this.handleSeeked_),this.off(this.player_,"play",this.handlePlay_),this.off(this.player_,"timeupdate",this.handleFirstTimeupdate_),this.off(this.player_,"timeupdate",this.seekToLiveEdge_)},_proto.nextSeekedFromUser=function(){this.nextSeekedFromUser_=!0},_proto.stopTracking=function(){this.isTracking()&&(this.reset_(),this.trigger("liveedgechange"))},_proto.seekableEnd=function(){for(var seekable=this.player_.seekable(),seekableEnds=[],i=seekable?seekable.length:0;i--;)seekableEnds.push(seekable.end(i));return seekableEnds.length?seekableEnds.sort()[seekableEnds.length-1]:1/0},_proto.seekableStart=function(){for(var seekable=this.player_.seekable(),seekableStarts=[],i=seekable?seekable.length:0;i--;)seekableStarts.push(seekable.start(i));return seekableStarts.length?seekableStarts.sort()[0]:0},_proto.liveWindow=function(){var liveCurrentTime=this.liveCurrentTime();return liveCurrentTime===1/0?0:liveCurrentTime-this.seekableStart()},_proto.isLive=function(){return this.isTracking()},_proto.atLiveEdge=function(){return!this.behindLiveEdge()},_proto.liveCurrentTime=function(){return this.pastSeekEnd()+this.seekableEnd()},_proto.pastSeekEnd=function(){var seekableEnd=this.seekableEnd();return-1!==this.lastSeekEnd_&&seekableEnd!==this.lastSeekEnd_&&(this.pastSeekEnd_=0),this.lastSeekEnd_=seekableEnd,this.pastSeekEnd_},_proto.behindLiveEdge=function(){return this.behindLiveEdge_},_proto.isTracking=function(){return"number"==typeof this.trackingInterval_},_proto.seekToLiveEdge=function(){this.seekedBehindLive_=!1,this.atLiveEdge()||(this.nextSeekedFromUser_=!1,this.player_.currentTime(this.liveCurrentTime()))},_proto.dispose=function(){this.off(document,"visibilitychange",this.handleVisibilityChange_),this.stopTracking(),_Component.prototype.dispose.call(this)},LiveTracker}(Component$1);Component$1.registerComponent("LiveTracker",LiveTracker);var canPlayType,sourcesetLoad=function(tech){var el=tech.el();if(el.hasAttribute("src"))return tech.triggerSourceset(el.src),!0;var sources=tech.$$("source"),srcUrls=[],src="";if(!sources.length)return!1;for(var i=0;i<sources.length;i++){var url=sources[i].src;url&&-1===srcUrls.indexOf(url)&&srcUrls.push(url)}return!!srcUrls.length&&(1===srcUrls.length&&(src=srcUrls[0]),tech.triggerSourceset(src),!0)},innerHTMLDescriptorPolyfill=Object.defineProperty({},"innerHTML",{get:function(){return this.cloneNode(!0).innerHTML},set:function(v){var dummy=document.createElement(this.nodeName.toLowerCase());dummy.innerHTML=v;for(var docFrag=document.createDocumentFragment();dummy.childNodes.length;)docFrag.appendChild(dummy.childNodes[0]);return this.innerText="",window.Element.prototype.appendChild.call(this,docFrag),this.innerHTML}}),getDescriptor=function(priority,prop){for(var descriptor={},i=0;i<priority.length&&!((descriptor=Object.getOwnPropertyDescriptor(priority[i],prop))&&descriptor.set&&descriptor.get);i++);return descriptor.enumerable=!0,descriptor.configurable=!0,descriptor},firstSourceWatch=function(tech){var el=tech.el();if(!el.resetSourceWatch_){var old={},innerDescriptor=function(tech){return getDescriptor([tech.el(),window.HTMLMediaElement.prototype,window.Element.prototype,innerHTMLDescriptorPolyfill],"innerHTML")}(tech),appendWrapper=function(appendFn){return function(){for(var _len=arguments.length,args=new Array(_len),_key=0;_key<_len;_key++)args[_key]=arguments[_key];var retval=appendFn.apply(el,args);return sourcesetLoad(tech),retval}};["append","appendChild","insertAdjacentHTML"].forEach((function(k){el[k]&&(old[k]=el[k],el[k]=appendWrapper(old[k]))})),Object.defineProperty(el,"innerHTML",mergeOptions$3(innerDescriptor,{set:appendWrapper(innerDescriptor.set)})),el.resetSourceWatch_=function(){el.resetSourceWatch_=null,Object.keys(old).forEach((function(k){el[k]=old[k]})),Object.defineProperty(el,"innerHTML",innerDescriptor)},tech.one("sourceset",el.resetSourceWatch_)}},srcDescriptorPolyfill=Object.defineProperty({},"src",{get:function(){return this.hasAttribute("src")?getAbsoluteURL(window.Element.prototype.getAttribute.call(this,"src")):""},set:function(v){return window.Element.prototype.setAttribute.call(this,"src",v),v}}),setupSourceset=function(tech){if(tech.featuresSourceset){var el=tech.el();if(!el.resetSourceset_){var srcDescriptor=function(tech){return getDescriptor([tech.el(),window.HTMLMediaElement.prototype,srcDescriptorPolyfill],"src")}(tech),oldSetAttribute=el.setAttribute,oldLoad=el.load;Object.defineProperty(el,"src",mergeOptions$3(srcDescriptor,{set:function(v){var retval=srcDescriptor.set.call(el,v);return tech.triggerSourceset(el.src),retval}})),el.setAttribute=function(n,v){var retval=oldSetAttribute.call(el,n,v);return/src/i.test(n)&&tech.triggerSourceset(el.src),retval},el.load=function(){var retval=oldLoad.call(el);return sourcesetLoad(tech)||(tech.triggerSourceset(""),firstSourceWatch(tech)),retval},el.currentSrc?tech.triggerSourceset(el.currentSrc):sourcesetLoad(tech)||firstSourceWatch(tech),el.resetSourceset_=function(){el.resetSourceset_=null,el.load=oldLoad,el.setAttribute=oldSetAttribute,Object.defineProperty(el,"src",srcDescriptor),el.resetSourceWatch_&&el.resetSourceWatch_()}}}},defineLazyProperty=function(obj,key,getValue,setter){void 0===setter&&(setter=!0);var set=function(value){return Object.defineProperty(obj,key,{value:value,enumerable:!0,writable:!0})},options={configurable:!0,enumerable:!0,get:function(){var value=getValue();return set(value),value}};return setter&&(options.set=set),Object.defineProperty(obj,key,options)},Html5=function(_Tech){function Html5(options,ready){var _this;_this=_Tech.call(this,options,ready)||this;var source=options.source,crossoriginTracks=!1;if(_this.featuresVideoFrameCallback=_this.featuresVideoFrameCallback&&"VIDEO"===_this.el_.tagName,source&&(_this.el_.currentSrc!==source.src||options.tag&&3===options.tag.initNetworkState_)?_this.setSource(source):_this.handleLateInit_(_this.el_),options.enableSourceset&&_this.setupSourcesetHandling_(),_this.isScrubbing_=!1,_this.el_.hasChildNodes()){for(var nodes=_this.el_.childNodes,nodesLength=nodes.length,removeNodes=[];nodesLength--;){var node=nodes[nodesLength];"track"===node.nodeName.toLowerCase()&&(_this.featuresNativeTextTracks?(_this.remoteTextTrackEls().addTrackElement_(node),_this.remoteTextTracks().addTrack(node.track),_this.textTracks().addTrack(node.track),crossoriginTracks||_this.el_.hasAttribute("crossorigin")||!isCrossOrigin(node.src)||(crossoriginTracks=!0)):removeNodes.push(node))}for(var i=0;i<removeNodes.length;i++)_this.el_.removeChild(removeNodes[i])}return _this.proxyNativeTracks_(),_this.featuresNativeTextTracks&&crossoriginTracks&&log$1.warn("Text Tracks are being loaded from another origin but the crossorigin attribute isn't used.\nThis may prevent text tracks from loading."),_this.restoreMetadataTracksInIOSNativePlayer_(),(TOUCH_ENABLED||IS_IPHONE||IS_NATIVE_ANDROID)&&!0===options.nativeControlsForTouch&&_this.setControls(!0),_this.proxyWebkitFullscreen_(),_this.triggerReady(),_this}inheritsLoose(Html5,_Tech);var _proto=Html5.prototype;return _proto.dispose=function(){this.el_&&this.el_.resetSourceset_&&this.el_.resetSourceset_(),Html5.disposeMediaElement(this.el_),this.options_=null,_Tech.prototype.dispose.call(this)},_proto.setupSourcesetHandling_=function(){setupSourceset(this)},_proto.restoreMetadataTracksInIOSNativePlayer_=function(){var metadataTracksPreFullscreenState,textTracks=this.textTracks(),takeMetadataTrackSnapshot=function(){metadataTracksPreFullscreenState=[];for(var i=0;i<textTracks.length;i++){var track=textTracks[i];"metadata"===track.kind&&metadataTracksPreFullscreenState.push({track:track,storedMode:track.mode})}};takeMetadataTrackSnapshot(),textTracks.addEventListener("change",takeMetadataTrackSnapshot),this.on("dispose",(function(){return textTracks.removeEventListener("change",takeMetadataTrackSnapshot)}));var restoreTrackMode=function restoreTrackMode(){for(var i=0;i<metadataTracksPreFullscreenState.length;i++){var storedTrack=metadataTracksPreFullscreenState[i];"disabled"===storedTrack.track.mode&&storedTrack.track.mode!==storedTrack.storedMode&&(storedTrack.track.mode=storedTrack.storedMode)}textTracks.removeEventListener("change",restoreTrackMode)};this.on("webkitbeginfullscreen",(function(){textTracks.removeEventListener("change",takeMetadataTrackSnapshot),textTracks.removeEventListener("change",restoreTrackMode),textTracks.addEventListener("change",restoreTrackMode)})),this.on("webkitendfullscreen",(function(){textTracks.removeEventListener("change",takeMetadataTrackSnapshot),textTracks.addEventListener("change",takeMetadataTrackSnapshot),textTracks.removeEventListener("change",restoreTrackMode)}))},_proto.overrideNative_=function(type,override){var _this2=this;if(override===this["featuresNative"+type+"Tracks"]){var lowerCaseType=type.toLowerCase();this[lowerCaseType+"TracksListeners_"]&&Object.keys(this[lowerCaseType+"TracksListeners_"]).forEach((function(eventName){_this2.el()[lowerCaseType+"Tracks"].removeEventListener(eventName,_this2[lowerCaseType+"TracksListeners_"][eventName])})),this["featuresNative"+type+"Tracks"]=!override,this[lowerCaseType+"TracksListeners_"]=null,this.proxyNativeTracksForType_(lowerCaseType)}},_proto.overrideNativeAudioTracks=function(override){this.overrideNative_("Audio",override)},_proto.overrideNativeVideoTracks=function(override){this.overrideNative_("Video",override)},_proto.proxyNativeTracksForType_=function(name){var _this3=this,props=NORMAL[name],elTracks=this.el()[props.getterName],techTracks=this[props.getterName]();if(this["featuresNative"+props.capitalName+"Tracks"]&&elTracks&&elTracks.addEventListener){var listeners={change:function(e){var event={type:"change",target:techTracks,currentTarget:techTracks,srcElement:techTracks};techTracks.trigger(event),"text"===name&&_this3[REMOTE.remoteText.getterName]().trigger(event)},addtrack:function(e){techTracks.addTrack(e.track)},removetrack:function(e){techTracks.removeTrack(e.track)}},removeOldTracks=function(){for(var removeTracks=[],i=0;i<techTracks.length;i++){for(var found=!1,j=0;j<elTracks.length;j++)if(elTracks[j]===techTracks[i]){found=!0;break}found||removeTracks.push(techTracks[i])}for(;removeTracks.length;)techTracks.removeTrack(removeTracks.shift())};this[props.getterName+"Listeners_"]=listeners,Object.keys(listeners).forEach((function(eventName){var listener=listeners[eventName];elTracks.addEventListener(eventName,listener),_this3.on("dispose",(function(e){return elTracks.removeEventListener(eventName,listener)}))})),this.on("loadstart",removeOldTracks),this.on("dispose",(function(e){return _this3.off("loadstart",removeOldTracks)}))}},_proto.proxyNativeTracks_=function(){var _this4=this;NORMAL.names.forEach((function(name){_this4.proxyNativeTracksForType_(name)}))},_proto.createEl=function(){var el=this.options_.tag;if(!el||!this.options_.playerElIngest&&!this.movingMediaElementInDOM){if(el){var clone=el.cloneNode(!0);el.parentNode&&el.parentNode.insertBefore(clone,el),Html5.disposeMediaElement(el),el=clone}else{el=document.createElement("video");var attributes=mergeOptions$3({},this.options_.tag&&getAttributes(this.options_.tag));TOUCH_ENABLED&&!0===this.options_.nativeControlsForTouch||delete attributes.controls,setAttributes(el,assign(attributes,{id:this.options_.techId,class:"vjs-tech"}))}el.playerId=this.options_.playerId}void 0!==this.options_.preload&&setAttribute(el,"preload",this.options_.preload),void 0!==this.options_.disablePictureInPicture&&(el.disablePictureInPicture=this.options_.disablePictureInPicture);for(var settingsAttrs=["loop","muted","playsinline","autoplay"],i=0;i<settingsAttrs.length;i++){var attr=settingsAttrs[i],value=this.options_[attr];void 0!==value&&(value?setAttribute(el,attr,attr):removeAttribute(el,attr),el[attr]=value)}return el},_proto.handleLateInit_=function(el){if(0!==el.networkState&&3!==el.networkState){if(0===el.readyState){var loadstartFired=!1,setLoadstartFired=function(){loadstartFired=!0};this.on("loadstart",setLoadstartFired);var triggerLoadstart=function(){loadstartFired||this.trigger("loadstart")};return this.on("loadedmetadata",triggerLoadstart),void this.ready((function(){this.off("loadstart",setLoadstartFired),this.off("loadedmetadata",triggerLoadstart),loadstartFired||this.trigger("loadstart")}))}var eventsToTrigger=["loadstart"];eventsToTrigger.push("loadedmetadata"),el.readyState>=2&&eventsToTrigger.push("loadeddata"),el.readyState>=3&&eventsToTrigger.push("canplay"),el.readyState>=4&&eventsToTrigger.push("canplaythrough"),this.ready((function(){eventsToTrigger.forEach((function(type){this.trigger(type)}),this)}))}},_proto.setScrubbing=function(isScrubbing){this.isScrubbing_=isScrubbing},_proto.scrubbing=function(){return this.isScrubbing_},_proto.setCurrentTime=function(seconds){try{this.isScrubbing_&&this.el_.fastSeek&&IS_ANY_SAFARI?this.el_.fastSeek(seconds):this.el_.currentTime=seconds}catch(e){log$1(e,"Video is not ready. (Video.js)")}},_proto.duration=function(){var _this5=this;if(this.el_.duration===1/0&&IS_ANDROID&&IS_CHROME&&0===this.el_.currentTime){return this.on("timeupdate",(function checkProgress(){_this5.el_.currentTime>0&&(_this5.el_.duration===1/0&&_this5.trigger("durationchange"),_this5.off("timeupdate",checkProgress))})),NaN}return this.el_.duration||NaN},_proto.width=function(){return this.el_.offsetWidth},_proto.height=function(){return this.el_.offsetHeight},_proto.proxyWebkitFullscreen_=function(){var _this6=this;if("webkitDisplayingFullscreen"in this.el_){var endFn=function(){this.trigger("fullscreenchange",{isFullscreen:!1}),this.el_.controls&&!this.options_.nativeControlsForTouch&&this.controls()&&(this.el_.controls=!1)},beginFn=function(){"webkitPresentationMode"in this.el_&&"picture-in-picture"!==this.el_.webkitPresentationMode&&(this.one("webkitendfullscreen",endFn),this.trigger("fullscreenchange",{isFullscreen:!0,nativeIOSFullscreen:!0}))};this.on("webkitbeginfullscreen",beginFn),this.on("dispose",(function(){_this6.off("webkitbeginfullscreen",beginFn),_this6.off("webkitendfullscreen",endFn)}))}},_proto.supportsFullScreen=function(){if("function"==typeof this.el_.webkitEnterFullScreen){var userAgent=window.navigator&&window.navigator.userAgent||"";if(/Android/.test(userAgent)||!/Chrome|Mac OS X 10.5/.test(userAgent))return!0}return!1},_proto.enterFullScreen=function(){var video=this.el_;if(video.paused&&video.networkState<=video.HAVE_METADATA)silencePromise(this.el_.play()),this.setTimeout((function(){video.pause();try{video.webkitEnterFullScreen()}catch(e){this.trigger("fullscreenerror",e)}}),0);else try{video.webkitEnterFullScreen()}catch(e){this.trigger("fullscreenerror",e)}},_proto.exitFullScreen=function(){this.el_.webkitDisplayingFullscreen?this.el_.webkitExitFullScreen():this.trigger("fullscreenerror",new Error("The video is not fullscreen"))},_proto.requestPictureInPicture=function(){return this.el_.requestPictureInPicture()},_proto.requestVideoFrameCallback=function(cb){return this.featuresVideoFrameCallback&&!this.el_.webkitKeys?this.el_.requestVideoFrameCallback(cb):_Tech.prototype.requestVideoFrameCallback.call(this,cb)},_proto.cancelVideoFrameCallback=function(id){this.featuresVideoFrameCallback&&!this.el_.webkitKeys?this.el_.cancelVideoFrameCallback(id):_Tech.prototype.cancelVideoFrameCallback.call(this,id)},_proto.src=function(_src){if(void 0===_src)return this.el_.src;this.setSrc(_src)},_proto.reset=function(){Html5.resetMediaElement(this.el_)},_proto.currentSrc=function(){return this.currentSource_?this.currentSource_.src:this.el_.currentSrc},_proto.setControls=function(val){this.el_.controls=!!val},_proto.addTextTrack=function(kind,label,language){return this.featuresNativeTextTracks?this.el_.addTextTrack(kind,label,language):_Tech.prototype.addTextTrack.call(this,kind,label,language)},_proto.createRemoteTextTrack=function(options){if(!this.featuresNativeTextTracks)return _Tech.prototype.createRemoteTextTrack.call(this,options);var htmlTrackElement=document.createElement("track");return options.kind&&(htmlTrackElement.kind=options.kind),options.label&&(htmlTrackElement.label=options.label),(options.language||options.srclang)&&(htmlTrackElement.srclang=options.language||options.srclang),options.default&&(htmlTrackElement.default=options.default),options.id&&(htmlTrackElement.id=options.id),options.src&&(htmlTrackElement.src=options.src),htmlTrackElement},_proto.addRemoteTextTrack=function(options,manualCleanup){var htmlTrackElement=_Tech.prototype.addRemoteTextTrack.call(this,options,manualCleanup);return this.featuresNativeTextTracks&&this.el().appendChild(htmlTrackElement),htmlTrackElement},_proto.removeRemoteTextTrack=function(track){if(_Tech.prototype.removeRemoteTextTrack.call(this,track),this.featuresNativeTextTracks)for(var tracks=this.$$("track"),i=tracks.length;i--;)track!==tracks[i]&&track!==tracks[i].track||this.el().removeChild(tracks[i])},_proto.getVideoPlaybackQuality=function(){if("function"==typeof this.el().getVideoPlaybackQuality)return this.el().getVideoPlaybackQuality();var videoPlaybackQuality={};return void 0!==this.el().webkitDroppedFrameCount&&void 0!==this.el().webkitDecodedFrameCount&&(videoPlaybackQuality.droppedVideoFrames=this.el().webkitDroppedFrameCount,videoPlaybackQuality.totalVideoFrames=this.el().webkitDecodedFrameCount),window.performance&&"function"==typeof window.performance.now?videoPlaybackQuality.creationTime=window.performance.now():window.performance&&window.performance.timing&&"number"==typeof window.performance.timing.navigationStart&&(videoPlaybackQuality.creationTime=window.Date.now()-window.performance.timing.navigationStart),videoPlaybackQuality},Html5}(Tech);defineLazyProperty(Html5,"TEST_VID",(function(){if(isReal()){var video=document.createElement("video"),track=document.createElement("track");return track.kind="captions",track.srclang="en",track.label="English",video.appendChild(track),video}})),Html5.isSupported=function(){try{Html5.TEST_VID.volume=.5}catch(e){return!1}return!(!Html5.TEST_VID||!Html5.TEST_VID.canPlayType)},Html5.canPlayType=function(type){return Html5.TEST_VID.canPlayType(type)},Html5.canPlaySource=function(srcObj,options){return Html5.canPlayType(srcObj.type)},Html5.canControlVolume=function(){try{var volume=Html5.TEST_VID.volume;Html5.TEST_VID.volume=volume/2+.1;var canControl=volume!==Html5.TEST_VID.volume;return canControl&&IS_IOS?(window.setTimeout((function(){Html5&&Html5.prototype&&(Html5.prototype.featuresVolumeControl=volume!==Html5.TEST_VID.volume)})),!1):canControl}catch(e){return!1}},Html5.canMuteVolume=function(){try{var muted=Html5.TEST_VID.muted;return Html5.TEST_VID.muted=!muted,Html5.TEST_VID.muted?setAttribute(Html5.TEST_VID,"muted","muted"):removeAttribute(Html5.TEST_VID,"muted"),muted!==Html5.TEST_VID.muted}catch(e){return!1}},Html5.canControlPlaybackRate=function(){if(IS_ANDROID&&IS_CHROME&&CHROME_VERSION<58)return!1;try{var playbackRate=Html5.TEST_VID.playbackRate;return Html5.TEST_VID.playbackRate=playbackRate/2+.1,playbackRate!==Html5.TEST_VID.playbackRate}catch(e){return!1}},Html5.canOverrideAttributes=function(){try{var noop=function(){};Object.defineProperty(document.createElement("video"),"src",{get:noop,set:noop}),Object.defineProperty(document.createElement("audio"),"src",{get:noop,set:noop}),Object.defineProperty(document.createElement("video"),"innerHTML",{get:noop,set:noop}),Object.defineProperty(document.createElement("audio"),"innerHTML",{get:noop,set:noop})}catch(e){return!1}return!0},Html5.supportsNativeTextTracks=function(){return IS_ANY_SAFARI||IS_IOS&&IS_CHROME},Html5.supportsNativeVideoTracks=function(){return!(!Html5.TEST_VID||!Html5.TEST_VID.videoTracks)},Html5.supportsNativeAudioTracks=function(){return!(!Html5.TEST_VID||!Html5.TEST_VID.audioTracks)},Html5.Events=["loadstart","suspend","abort","error","emptied","stalled","loadedmetadata","loadeddata","canplay","canplaythrough","playing","waiting","seeking","seeked","ended","durationchange","timeupdate","progress","play","pause","ratechange","resize","volumechange"],[["featuresMuteControl","canMuteVolume"],["featuresPlaybackRate","canControlPlaybackRate"],["featuresSourceset","canOverrideAttributes"],["featuresNativeTextTracks","supportsNativeTextTracks"],["featuresNativeVideoTracks","supportsNativeVideoTracks"],["featuresNativeAudioTracks","supportsNativeAudioTracks"]].forEach((function(_ref){var key=_ref[0],fn=_ref[1];defineLazyProperty(Html5.prototype,key,(function(){return Html5[fn]()}),!0)})),Html5.prototype.featuresVolumeControl=Html5.canControlVolume(),Html5.prototype.movingMediaElementInDOM=!IS_IOS,Html5.prototype.featuresFullscreenResize=!0,Html5.prototype.featuresProgressEvents=!0,Html5.prototype.featuresTimeupdateEvents=!0,Html5.prototype.featuresVideoFrameCallback=!(!Html5.TEST_VID||!Html5.TEST_VID.requestVideoFrameCallback),Html5.patchCanPlayType=function(){ANDROID_VERSION>=4&&!IS_FIREFOX&&!IS_CHROME&&(canPlayType=Html5.TEST_VID&&Html5.TEST_VID.constructor.prototype.canPlayType,Html5.TEST_VID.constructor.prototype.canPlayType=function(type){return type&&/^application\/(?:x-|vnd\.apple\.)mpegurl/i.test(type)?"maybe":canPlayType.call(this,type)})},Html5.unpatchCanPlayType=function(){var r=Html5.TEST_VID.constructor.prototype.canPlayType;return canPlayType&&(Html5.TEST_VID.constructor.prototype.canPlayType=canPlayType),r},Html5.patchCanPlayType(),Html5.disposeMediaElement=function(el){if(el){for(el.parentNode&&el.parentNode.removeChild(el);el.hasChildNodes();)el.removeChild(el.firstChild);el.removeAttribute("src"),"function"==typeof el.load&&function(){try{el.load()}catch(e){}}()}},Html5.resetMediaElement=function(el){if(el){for(var sources=el.querySelectorAll("source"),i=sources.length;i--;)el.removeChild(sources[i]);el.removeAttribute("src"),"function"==typeof el.load&&function(){try{el.load()}catch(e){}}()}},["muted","defaultMuted","autoplay","controls","loop","playsinline"].forEach((function(prop){Html5.prototype[prop]=function(){return this.el_[prop]||this.el_.hasAttribute(prop)}})),["muted","defaultMuted","autoplay","loop","playsinline"].forEach((function(prop){Html5.prototype["set"+toTitleCase$1(prop)]=function(v){this.el_[prop]=v,v?this.el_.setAttribute(prop,prop):this.el_.removeAttribute(prop)}})),["paused","currentTime","buffered","volume","poster","preload","error","seeking","seekable","ended","playbackRate","defaultPlaybackRate","disablePictureInPicture","played","networkState","readyState","videoWidth","videoHeight","crossOrigin"].forEach((function(prop){Html5.prototype[prop]=function(){return this.el_[prop]}})),["volume","src","poster","preload","playbackRate","defaultPlaybackRate","disablePictureInPicture","crossOrigin"].forEach((function(prop){Html5.prototype["set"+toTitleCase$1(prop)]=function(v){this.el_[prop]=v}})),["pause","load","play"].forEach((function(prop){Html5.prototype[prop]=function(){return this.el_[prop]()}})),Tech.withSourceHandlers(Html5),Html5.nativeSourceHandler={},Html5.nativeSourceHandler.canPlayType=function(type){try{return Html5.TEST_VID.canPlayType(type)}catch(e){return""}},Html5.nativeSourceHandler.canHandleSource=function(source,options){if(source.type)return Html5.nativeSourceHandler.canPlayType(source.type);if(source.src){var ext=getFileExtension(source.src);return Html5.nativeSourceHandler.canPlayType("video/"+ext)}return""},Html5.nativeSourceHandler.handleSource=function(source,tech,options){tech.setSrc(source.src)},Html5.nativeSourceHandler.dispose=function(){},Html5.registerSourceHandler(Html5.nativeSourceHandler),Tech.registerTech("Html5",Html5);var TECH_EVENTS_RETRIGGER=["progress","abort","suspend","emptied","stalled","loadedmetadata","loadeddata","timeupdate","resize","volumechange","texttrackchange"],TECH_EVENTS_QUEUE={canplay:"CanPlay",canplaythrough:"CanPlayThrough",playing:"Playing",seeked:"Seeked"},BREAKPOINT_ORDER=["tiny","xsmall","small","medium","large","xlarge","huge"],BREAKPOINT_CLASSES={};BREAKPOINT_ORDER.forEach((function(k){var v="x"===k.charAt(0)?"x-"+k.substring(1):k;BREAKPOINT_CLASSES[k]="vjs-layout-"+v}));var DEFAULT_BREAKPOINTS={tiny:210,xsmall:320,small:425,medium:768,large:1440,xlarge:2560,huge:1/0},Player=function(_Component){function Player(tag,options,ready){var _this;if(tag.id=tag.id||options.id||"vjs_video_"+newGUID(),(options=assign(Player.getTagSettings(tag),options)).initChildren=!1,options.createEl=!1,options.evented=!1,options.reportTouchActivity=!1,!options.language)if("function"==typeof tag.closest){var closest=tag.closest("[lang]");closest&&closest.getAttribute&&(options.language=closest.getAttribute("lang"))}else for(var element=tag;element&&1===element.nodeType;){if(getAttributes(element).hasOwnProperty("lang")){options.language=element.getAttribute("lang");break}element=element.parentNode}if((_this=_Component.call(this,null,options,ready)||this).boundDocumentFullscreenChange_=function(e){return _this.documentFullscreenChange_(e)},_this.boundFullWindowOnEscKey_=function(e){return _this.fullWindowOnEscKey(e)},_this.boundUpdateStyleEl_=function(e){return _this.updateStyleEl_(e)},_this.boundApplyInitTime_=function(e){return _this.applyInitTime_(e)},_this.boundUpdateCurrentBreakpoint_=function(e){return _this.updateCurrentBreakpoint_(e)},_this.boundHandleTechClick_=function(e){return _this.handleTechClick_(e)},_this.boundHandleTechDoubleClick_=function(e){return _this.handleTechDoubleClick_(e)},_this.boundHandleTechTouchStart_=function(e){return _this.handleTechTouchStart_(e)},_this.boundHandleTechTouchMove_=function(e){return _this.handleTechTouchMove_(e)},_this.boundHandleTechTouchEnd_=function(e){return _this.handleTechTouchEnd_(e)},_this.boundHandleTechTap_=function(e){return _this.handleTechTap_(e)},_this.isFullscreen_=!1,_this.log=createLogger(_this.id_),_this.fsApi_=FullscreenApi,_this.isPosterFromTech_=!1,_this.queuedCallbacks_=[],_this.isReady_=!1,_this.hasStarted_=!1,_this.userActive_=!1,_this.debugEnabled_=!1,_this.audioOnlyMode_=!1,_this.audioPosterMode_=!1,_this.audioOnlyCache_={playerHeight:null,hiddenChildren:[]},!_this.options_||!_this.options_.techOrder||!_this.options_.techOrder.length)throw new Error("No techOrder specified. Did you overwrite videojs.options instead of just changing the properties you want to override?");if(_this.tag=tag,_this.tagAttributes=tag&&getAttributes(tag),_this.language(_this.options_.language),options.languages){var languagesToLower={};Object.getOwnPropertyNames(options.languages).forEach((function(name){languagesToLower[name.toLowerCase()]=options.languages[name]})),_this.languages_=languagesToLower}else _this.languages_=Player.prototype.options_.languages;_this.resetCache_(),_this.poster_=options.poster||"",_this.controls_=!!options.controls,tag.controls=!1,tag.removeAttribute("controls"),_this.changingSrc_=!1,_this.playCallbacks_=[],_this.playTerminatedQueue_=[],tag.hasAttribute("autoplay")?_this.autoplay(!0):_this.autoplay(_this.options_.autoplay),options.plugins&&Object.keys(options.plugins).forEach((function(name){if("function"!=typeof _this[name])throw new Error('plugin "'+name+'" does not exist')})),_this.scrubbing_=!1,_this.el_=_this.createEl(),evented(assertThisInitialized(_this),{eventBusKey:"el_"}),_this.fsApi_.requestFullscreen&&(on(document,_this.fsApi_.fullscreenchange,_this.boundDocumentFullscreenChange_),_this.on(_this.fsApi_.fullscreenchange,_this.boundDocumentFullscreenChange_)),_this.fluid_&&_this.on(["playerreset","resize"],_this.boundUpdateStyleEl_);var playerOptionsCopy=mergeOptions$3(_this.options_);options.plugins&&Object.keys(options.plugins).forEach((function(name){_this[name](options.plugins[name])})),options.debug&&_this.debug(!0),_this.options_.playerOptions=playerOptionsCopy,_this.middleware_=[],_this.playbackRates(options.playbackRates),_this.initChildren(),_this.isAudio("audio"===tag.nodeName.toLowerCase()),_this.controls()?_this.addClass("vjs-controls-enabled"):_this.addClass("vjs-controls-disabled"),_this.el_.setAttribute("role","region"),_this.isAudio()?_this.el_.setAttribute("aria-label",_this.localize("Audio Player")):_this.el_.setAttribute("aria-label",_this.localize("Video Player")),_this.isAudio()&&_this.addClass("vjs-audio"),_this.flexNotSupported_()&&_this.addClass("vjs-no-flex"),TOUCH_ENABLED&&_this.addClass("vjs-touch-enabled"),IS_IOS||_this.addClass("vjs-workinghover"),Player.players[_this.id_]=assertThisInitialized(_this);var majorVersion="7.20.3".split(".")[0];return _this.addClass("vjs-v"+majorVersion),_this.userActive(!0),_this.reportUserActivity(),_this.one("play",(function(e){return _this.listenForUserActivity_(e)})),_this.on("stageclick",(function(e){return _this.handleStageClick_(e)})),_this.on("keydown",(function(e){return _this.handleKeyDown(e)})),_this.on("languagechange",(function(e){return _this.handleLanguagechange(e)})),_this.breakpoints(_this.options_.breakpoints),_this.responsive(_this.options_.responsive),_this.on("ready",(function(){_this.audioPosterMode(_this.options_.audioPosterMode),_this.audioOnlyMode(_this.options_.audioOnlyMode)})),_this}inheritsLoose(Player,_Component);var _proto=Player.prototype;return _proto.dispose=function(){var _this2=this;this.trigger("dispose"),this.off("dispose"),off(document,this.fsApi_.fullscreenchange,this.boundDocumentFullscreenChange_),off(document,"keydown",this.boundFullWindowOnEscKey_),this.styleEl_&&this.styleEl_.parentNode&&(this.styleEl_.parentNode.removeChild(this.styleEl_),this.styleEl_=null),Player.players[this.id_]=null,this.tag&&this.tag.player&&(this.tag.player=null),this.el_&&this.el_.player&&(this.el_.player=null),this.tech_&&(this.tech_.dispose(),this.isPosterFromTech_=!1,this.poster_=""),this.playerElIngest_&&(this.playerElIngest_=null),this.tag&&(this.tag=null),middlewareInstances[this.id()]=null,ALL.names.forEach((function(name){var props=ALL[name],list=_this2[props.getterName]();list&&list.off&&list.off()})),_Component.prototype.dispose.call(this,{restoreEl:this.options_.restoreEl})},_proto.createEl=function(){var el,tag=this.tag,playerElIngest=this.playerElIngest_=tag.parentNode&&tag.parentNode.hasAttribute&&tag.parentNode.hasAttribute("data-vjs-player"),divEmbed="video-js"===this.tag.tagName.toLowerCase();playerElIngest?el=this.el_=tag.parentNode:divEmbed||(el=this.el_=_Component.prototype.createEl.call(this,"div"));var attrs=getAttributes(tag);if(divEmbed){for(el=this.el_=tag,tag=this.tag=document.createElement("video");el.children.length;)tag.appendChild(el.firstChild);hasClass(el,"video-js")||addClass(el,"video-js"),el.appendChild(tag),playerElIngest=this.playerElIngest_=el,Object.keys(el).forEach((function(k){try{tag[k]=el[k]}catch(e){}}))}if(tag.setAttribute("tabindex","-1"),attrs.tabindex="-1",(IE_VERSION||IS_CHROME&&IS_WINDOWS)&&(tag.setAttribute("role","application"),attrs.role="application"),tag.removeAttribute("width"),tag.removeAttribute("height"),"width"in attrs&&delete attrs.width,"height"in attrs&&delete attrs.height,Object.getOwnPropertyNames(attrs).forEach((function(attr){divEmbed&&"class"===attr||el.setAttribute(attr,attrs[attr]),divEmbed&&tag.setAttribute(attr,attrs[attr])})),tag.playerId=tag.id,tag.id+="_html5_api",tag.className="vjs-tech",tag.player=el.player=this,this.addClass("vjs-paused"),!0!==window.VIDEOJS_NO_DYNAMIC_STYLE){this.styleEl_=createStyleElement("vjs-styles-dimensions");var defaultsStyleEl=$(".vjs-styles-defaults"),head=$("head");head.insertBefore(this.styleEl_,defaultsStyleEl?defaultsStyleEl.nextSibling:head.firstChild)}this.fill_=!1,this.fluid_=!1,this.width(this.options_.width),this.height(this.options_.height),this.fill(this.options_.fill),this.fluid(this.options_.fluid),this.aspectRatio(this.options_.aspectRatio),this.crossOrigin(this.options_.crossOrigin||this.options_.crossorigin);for(var links=tag.getElementsByTagName("a"),i=0;i<links.length;i++){var linkEl=links.item(i);addClass(linkEl,"vjs-hidden"),linkEl.setAttribute("hidden","hidden")}return tag.initNetworkState_=tag.networkState,tag.parentNode&&!playerElIngest&&tag.parentNode.insertBefore(el,tag),prependTo(tag,el),this.children_.unshift(tag),this.el_.setAttribute("lang",this.language_),this.el_.setAttribute("translate","no"),this.el_=el,el},_proto.crossOrigin=function(value){if(!value)return this.techGet_("crossOrigin");"anonymous"===value||"use-credentials"===value?this.techCall_("setCrossOrigin",value):log$1.warn('crossOrigin must be "anonymous" or "use-credentials", given "'+value+'"')},_proto.width=function(value){return this.dimension("width",value)},_proto.height=function(value){return this.dimension("height",value)},_proto.dimension=function(_dimension,value){var privDimension=_dimension+"_";if(void 0===value)return this[privDimension]||0;if(""===value||"auto"===value)return this[privDimension]=void 0,void this.updateStyleEl_();var parsedVal=parseFloat(value);isNaN(parsedVal)?log$1.error('Improper value "'+value+'" supplied for for '+_dimension):(this[privDimension]=parsedVal,this.updateStyleEl_())},_proto.fluid=function(bool){var target,callback,_this3=this;if(void 0===bool)return!!this.fluid_;this.fluid_=!!bool,isEvented(this)&&this.off(["playerreset","resize"],this.boundUpdateStyleEl_),bool?(this.addClass("vjs-fluid"),this.fill(!1),callback=function(){_this3.on(["playerreset","resize"],_this3.boundUpdateStyleEl_)},isEvented(target=this)?callback():(target.eventedCallbacks||(target.eventedCallbacks=[]),target.eventedCallbacks.push(callback))):this.removeClass("vjs-fluid"),this.updateStyleEl_()},_proto.fill=function(bool){if(void 0===bool)return!!this.fill_;this.fill_=!!bool,bool?(this.addClass("vjs-fill"),this.fluid(!1)):this.removeClass("vjs-fill")},_proto.aspectRatio=function(ratio){if(void 0===ratio)return this.aspectRatio_;if(!/^\d+\:\d+$/.test(ratio))throw new Error("Improper value supplied for aspect ratio. The format should be width:height, for example 16:9.");this.aspectRatio_=ratio,this.fluid(!0),this.updateStyleEl_()},_proto.updateStyleEl_=function(){if(!0!==window.VIDEOJS_NO_DYNAMIC_STYLE){var width,height,idClass,ratioParts=(void 0!==this.aspectRatio_&&"auto"!==this.aspectRatio_?this.aspectRatio_:this.videoWidth()>0?this.videoWidth()+":"+this.videoHeight():"16:9").split(":"),ratioMultiplier=ratioParts[1]/ratioParts[0];width=void 0!==this.width_?this.width_:void 0!==this.height_?this.height_/ratioMultiplier:this.videoWidth()||300,height=void 0!==this.height_?this.height_:width*ratioMultiplier,idClass=/^[^a-zA-Z]/.test(this.id())?"dimensions-"+this.id():this.id()+"-dimensions",this.addClass(idClass),setTextContent(this.styleEl_,"\n      ."+idClass+" {\n        width: "+width+"px;\n        height: "+height+"px;\n      }\n\n      ."+idClass+".vjs-fluid:not(.vjs-audio-only-mode) {\n        padding-top: "+100*ratioMultiplier+"%;\n      }\n    ")}else{var _width="number"==typeof this.width_?this.width_:this.options_.width,_height="number"==typeof this.height_?this.height_:this.options_.height,techEl=this.tech_&&this.tech_.el();techEl&&(_width>=0&&(techEl.width=_width),_height>=0&&(techEl.height=_height))}},_proto.loadTech_=function(techName,source){var _this4=this;this.tech_&&this.unloadTech_();var titleTechName=toTitleCase$1(techName),camelTechName=techName.charAt(0).toLowerCase()+techName.slice(1);"Html5"!==titleTechName&&this.tag&&(Tech.getTech("Html5").disposeMediaElement(this.tag),this.tag.player=null,this.tag=null),this.techName_=titleTechName,this.isReady_=!1;var autoplay=this.autoplay();("string"==typeof this.autoplay()||!0===this.autoplay()&&this.options_.normalizeAutoplay)&&(autoplay=!1);var techOptions={source:source,autoplay:autoplay,nativeControlsForTouch:this.options_.nativeControlsForTouch,playerId:this.id(),techId:this.id()+"_"+camelTechName+"_api",playsinline:this.options_.playsinline,preload:this.options_.preload,loop:this.options_.loop,disablePictureInPicture:this.options_.disablePictureInPicture,muted:this.options_.muted,poster:this.poster(),language:this.language(),playerElIngest:this.playerElIngest_||!1,"vtt.js":this.options_["vtt.js"],canOverridePoster:!!this.options_.techCanOverridePoster,enableSourceset:this.options_.enableSourceset,Promise:this.options_.Promise};ALL.names.forEach((function(name){var props=ALL[name];techOptions[props.getterName]=_this4[props.privateName]})),assign(techOptions,this.options_[titleTechName]),assign(techOptions,this.options_[camelTechName]),assign(techOptions,this.options_[techName.toLowerCase()]),this.tag&&(techOptions.tag=this.tag),source&&source.src===this.cache_.src&&this.cache_.currentTime>0&&(techOptions.startTime=this.cache_.currentTime);var TechClass=Tech.getTech(techName);if(!TechClass)throw new Error("No Tech named '"+titleTechName+"' exists! '"+titleTechName+"' should be registered using videojs.registerTech()'");this.tech_=new TechClass(techOptions),this.tech_.ready(bind(this,this.handleTechReady_),!0),textTrackConverter_jsonToTextTracks(this.textTracksJson_||[],this.tech_),TECH_EVENTS_RETRIGGER.forEach((function(event){_this4.on(_this4.tech_,event,(function(e){return _this4["handleTech"+toTitleCase$1(event)+"_"](e)}))})),Object.keys(TECH_EVENTS_QUEUE).forEach((function(event){_this4.on(_this4.tech_,event,(function(eventObj){0===_this4.tech_.playbackRate()&&_this4.tech_.seeking()?_this4.queuedCallbacks_.push({callback:_this4["handleTech"+TECH_EVENTS_QUEUE[event]+"_"].bind(_this4),event:eventObj}):_this4["handleTech"+TECH_EVENTS_QUEUE[event]+"_"](eventObj)}))})),this.on(this.tech_,"loadstart",(function(e){return _this4.handleTechLoadStart_(e)})),this.on(this.tech_,"sourceset",(function(e){return _this4.handleTechSourceset_(e)})),this.on(this.tech_,"waiting",(function(e){return _this4.handleTechWaiting_(e)})),this.on(this.tech_,"ended",(function(e){return _this4.handleTechEnded_(e)})),this.on(this.tech_,"seeking",(function(e){return _this4.handleTechSeeking_(e)})),this.on(this.tech_,"play",(function(e){return _this4.handleTechPlay_(e)})),this.on(this.tech_,"firstplay",(function(e){return _this4.handleTechFirstPlay_(e)})),this.on(this.tech_,"pause",(function(e){return _this4.handleTechPause_(e)})),this.on(this.tech_,"durationchange",(function(e){return _this4.handleTechDurationChange_(e)})),this.on(this.tech_,"fullscreenchange",(function(e,data){return _this4.handleTechFullscreenChange_(e,data)})),this.on(this.tech_,"fullscreenerror",(function(e,err){return _this4.handleTechFullscreenError_(e,err)})),this.on(this.tech_,"enterpictureinpicture",(function(e){return _this4.handleTechEnterPictureInPicture_(e)})),this.on(this.tech_,"leavepictureinpicture",(function(e){return _this4.handleTechLeavePictureInPicture_(e)})),this.on(this.tech_,"error",(function(e){return _this4.handleTechError_(e)})),this.on(this.tech_,"posterchange",(function(e){return _this4.handleTechPosterChange_(e)})),this.on(this.tech_,"textdata",(function(e){return _this4.handleTechTextData_(e)})),this.on(this.tech_,"ratechange",(function(e){return _this4.handleTechRateChange_(e)})),this.on(this.tech_,"loadedmetadata",this.boundUpdateStyleEl_),this.usingNativeControls(this.techGet_("controls")),this.controls()&&!this.usingNativeControls()&&this.addTechControlsListeners_(),this.tech_.el().parentNode===this.el()||"Html5"===titleTechName&&this.tag||prependTo(this.tech_.el(),this.el()),this.tag&&(this.tag.player=null,this.tag=null)},_proto.unloadTech_=function(){var _this5=this;ALL.names.forEach((function(name){var props=ALL[name];_this5[props.privateName]=_this5[props.getterName]()})),this.textTracksJson_=textTrackConverter_textTracksToJson(this.tech_),this.isReady_=!1,this.tech_.dispose(),this.tech_=!1,this.isPosterFromTech_&&(this.poster_="",this.trigger("posterchange")),this.isPosterFromTech_=!1},_proto.tech=function(safety){return void 0===safety&&log$1.warn("Using the tech directly can be dangerous. I hope you know what you're doing.\nSee https://github.com/videojs/video.js/issues/2617 for more info.\n"),this.tech_},_proto.addTechControlsListeners_=function(){this.removeTechControlsListeners_(),this.on(this.tech_,"click",this.boundHandleTechClick_),this.on(this.tech_,"dblclick",this.boundHandleTechDoubleClick_),this.on(this.tech_,"touchstart",this.boundHandleTechTouchStart_),this.on(this.tech_,"touchmove",this.boundHandleTechTouchMove_),this.on(this.tech_,"touchend",this.boundHandleTechTouchEnd_),this.on(this.tech_,"tap",this.boundHandleTechTap_)},_proto.removeTechControlsListeners_=function(){this.off(this.tech_,"tap",this.boundHandleTechTap_),this.off(this.tech_,"touchstart",this.boundHandleTechTouchStart_),this.off(this.tech_,"touchmove",this.boundHandleTechTouchMove_),this.off(this.tech_,"touchend",this.boundHandleTechTouchEnd_),this.off(this.tech_,"click",this.boundHandleTechClick_),this.off(this.tech_,"dblclick",this.boundHandleTechDoubleClick_)},_proto.handleTechReady_=function(){this.triggerReady(),this.cache_.volume&&this.techCall_("setVolume",this.cache_.volume),this.handleTechPosterChange_(),this.handleTechDurationChange_()},_proto.handleTechLoadStart_=function(){this.removeClass("vjs-ended"),this.removeClass("vjs-seeking"),this.error(null),this.handleTechDurationChange_(),this.paused()?(this.hasStarted(!1),this.trigger("loadstart")):(this.trigger("loadstart"),this.trigger("firstplay")),this.manualAutoplay_(!0===this.autoplay()&&this.options_.normalizeAutoplay?"play":this.autoplay())},_proto.manualAutoplay_=function(type){var _this6=this;if(this.tech_&&"string"==typeof type){var promise,resolveMuted=function(){var previouslyMuted=_this6.muted();_this6.muted(!0);var restoreMuted=function(){_this6.muted(previouslyMuted)};_this6.playTerminatedQueue_.push(restoreMuted);var mutedPromise=_this6.play();if(isPromise(mutedPromise))return mutedPromise.catch((function(err){throw restoreMuted(),new Error("Rejection at manualAutoplay. Restoring muted value. "+(err||""))}))};if("any"!==type||this.muted()?promise="muted"!==type||this.muted()?this.play():resolveMuted():isPromise(promise=this.play())&&(promise=promise.catch(resolveMuted)),isPromise(promise))return promise.then((function(){_this6.trigger({type:"autoplay-success",autoplay:type})})).catch((function(){_this6.trigger({type:"autoplay-failure",autoplay:type})}))}},_proto.updateSourceCaches_=function(srcObj){void 0===srcObj&&(srcObj="");var src=srcObj,type="";"string"!=typeof src&&(src=srcObj.src,type=srcObj.type),this.cache_.source=this.cache_.source||{},this.cache_.sources=this.cache_.sources||[],src&&!type&&(type=function(player,src){if(!src)return"";if(player.cache_.source.src===src&&player.cache_.source.type)return player.cache_.source.type;var matchingSources=player.cache_.sources.filter((function(s){return s.src===src}));if(matchingSources.length)return matchingSources[0].type;for(var sources=player.$$("source"),i=0;i<sources.length;i++){var s=sources[i];if(s.type&&s.src&&s.src===src)return s.type}return getMimetype(src)}(this,src)),this.cache_.source=mergeOptions$3({},srcObj,{src:src,type:type});for(var matchingSources=this.cache_.sources.filter((function(s){return s.src&&s.src===src})),sourceElSources=[],sourceEls=this.$$("source"),matchingSourceEls=[],i=0;i<sourceEls.length;i++){var sourceObj=getAttributes(sourceEls[i]);sourceElSources.push(sourceObj),sourceObj.src&&sourceObj.src===src&&matchingSourceEls.push(sourceObj.src)}matchingSourceEls.length&&!matchingSources.length?this.cache_.sources=sourceElSources:matchingSources.length||(this.cache_.sources=[this.cache_.source]),this.cache_.src=src},_proto.handleTechSourceset_=function(event){var _this7=this;if(!this.changingSrc_){var updateSourceCaches=function(src){return _this7.updateSourceCaches_(src)},playerSrc=this.currentSource().src,eventSrc=event.src;playerSrc&&!/^blob:/.test(playerSrc)&&/^blob:/.test(eventSrc)&&(!this.lastSource_||this.lastSource_.tech!==eventSrc&&this.lastSource_.player!==playerSrc)&&(updateSourceCaches=function(){}),updateSourceCaches(eventSrc),event.src||this.tech_.any(["sourceset","loadstart"],(function(e){if("sourceset"!==e.type){var techSrc=_this7.techGet("currentSrc");_this7.lastSource_.tech=techSrc,_this7.updateSourceCaches_(techSrc)}}))}this.lastSource_={player:this.currentSource().src,tech:event.src},this.trigger({src:event.src,type:"sourceset"})},_proto.hasStarted=function(request){if(void 0===request)return this.hasStarted_;request!==this.hasStarted_&&(this.hasStarted_=request,this.hasStarted_?(this.addClass("vjs-has-started"),this.trigger("firstplay")):this.removeClass("vjs-has-started"))},_proto.handleTechPlay_=function(){this.removeClass("vjs-ended"),this.removeClass("vjs-paused"),this.addClass("vjs-playing"),this.hasStarted(!0),this.trigger("play")},_proto.handleTechRateChange_=function(){this.tech_.playbackRate()>0&&0===this.cache_.lastPlaybackRate&&(this.queuedCallbacks_.forEach((function(queued){return queued.callback(queued.event)})),this.queuedCallbacks_=[]),this.cache_.lastPlaybackRate=this.tech_.playbackRate(),this.trigger("ratechange")},_proto.handleTechWaiting_=function(){var _this8=this;this.addClass("vjs-waiting"),this.trigger("waiting");var timeWhenWaiting=this.currentTime();this.on("timeupdate",(function timeUpdateListener(){timeWhenWaiting!==_this8.currentTime()&&(_this8.removeClass("vjs-waiting"),_this8.off("timeupdate",timeUpdateListener))}))},_proto.handleTechCanPlay_=function(){this.removeClass("vjs-waiting"),this.trigger("canplay")},_proto.handleTechCanPlayThrough_=function(){this.removeClass("vjs-waiting"),this.trigger("canplaythrough")},_proto.handleTechPlaying_=function(){this.removeClass("vjs-waiting"),this.trigger("playing")},_proto.handleTechSeeking_=function(){this.addClass("vjs-seeking"),this.trigger("seeking")},_proto.handleTechSeeked_=function(){this.removeClass("vjs-seeking"),this.removeClass("vjs-ended"),this.trigger("seeked")},_proto.handleTechFirstPlay_=function(){this.options_.starttime&&(log$1.warn("Passing the `starttime` option to the player will be deprecated in 6.0"),this.currentTime(this.options_.starttime)),this.addClass("vjs-has-started"),this.trigger("firstplay")},_proto.handleTechPause_=function(){this.removeClass("vjs-playing"),this.addClass("vjs-paused"),this.trigger("pause")},_proto.handleTechEnded_=function(){this.addClass("vjs-ended"),this.removeClass("vjs-waiting"),this.options_.loop?(this.currentTime(0),this.play()):this.paused()||this.pause(),this.trigger("ended")},_proto.handleTechDurationChange_=function(){this.duration(this.techGet_("duration"))},_proto.handleTechClick_=function(event){this.controls_&&(void 0!==this.options_&&void 0!==this.options_.userActions&&void 0!==this.options_.userActions.click&&!1===this.options_.userActions.click||(void 0!==this.options_&&void 0!==this.options_.userActions&&"function"==typeof this.options_.userActions.click?this.options_.userActions.click.call(this,event):this.paused()?silencePromise(this.play()):this.pause()))},_proto.handleTechDoubleClick_=function(event){this.controls_&&(Array.prototype.some.call(this.$$(".vjs-control-bar, .vjs-modal-dialog"),(function(el){return el.contains(event.target)}))||void 0!==this.options_&&void 0!==this.options_.userActions&&void 0!==this.options_.userActions.doubleClick&&!1===this.options_.userActions.doubleClick||(void 0!==this.options_&&void 0!==this.options_.userActions&&"function"==typeof this.options_.userActions.doubleClick?this.options_.userActions.doubleClick.call(this,event):this.isFullscreen()?this.exitFullscreen():this.requestFullscreen()))},_proto.handleTechTap_=function(){this.userActive(!this.userActive())},_proto.handleTechTouchStart_=function(){this.userWasActive=this.userActive()},_proto.handleTechTouchMove_=function(){this.userWasActive&&this.reportUserActivity()},_proto.handleTechTouchEnd_=function(event){event.cancelable&&event.preventDefault()},_proto.handleStageClick_=function(){this.reportUserActivity()},_proto.toggleFullscreenClass_=function(){this.isFullscreen()?this.addClass("vjs-fullscreen"):this.removeClass("vjs-fullscreen")},_proto.documentFullscreenChange_=function(e){var targetPlayer=e.target.player;if(!targetPlayer||targetPlayer===this){var el=this.el(),isFs=document[this.fsApi_.fullscreenElement]===el;!isFs&&el.matches?isFs=el.matches(":"+this.fsApi_.fullscreen):!isFs&&el.msMatchesSelector&&(isFs=el.msMatchesSelector(":"+this.fsApi_.fullscreen)),this.isFullscreen(isFs)}},_proto.handleTechFullscreenChange_=function(event,data){var _this9=this;data&&(data.nativeIOSFullscreen&&(this.addClass("vjs-ios-native-fs"),this.tech_.one("webkitendfullscreen",(function(){_this9.removeClass("vjs-ios-native-fs")}))),this.isFullscreen(data.isFullscreen))},_proto.handleTechFullscreenError_=function(event,err){this.trigger("fullscreenerror",err)},_proto.togglePictureInPictureClass_=function(){this.isInPictureInPicture()?this.addClass("vjs-picture-in-picture"):this.removeClass("vjs-picture-in-picture")},_proto.handleTechEnterPictureInPicture_=function(event){this.isInPictureInPicture(!0)},_proto.handleTechLeavePictureInPicture_=function(event){this.isInPictureInPicture(!1)},_proto.handleTechError_=function(){var error=this.tech_.error();this.error(error)},_proto.handleTechTextData_=function(){var data=null;arguments.length>1&&(data=arguments[1]),this.trigger("textdata",data)},_proto.getCache=function(){return this.cache_},_proto.resetCache_=function(){this.cache_={currentTime:0,initTime:0,inactivityTimeout:this.options_.inactivityTimeout,duration:NaN,lastVolume:1,lastPlaybackRate:this.defaultPlaybackRate(),media:null,src:"",source:{},sources:[],playbackRates:[],volume:1}},_proto.techCall_=function(method,arg){this.ready((function(){if(method in allowedSetters)return function(middleware,tech,method,arg){return tech[method](middleware.reduce(middlewareIterator(method),arg))}(this.middleware_,this.tech_,method,arg);if(method in allowedMediators)return mediate(this.middleware_,this.tech_,method,arg);try{this.tech_&&this.tech_[method](arg)}catch(e){throw log$1(e),e}}),!0)},_proto.techGet_=function(method){if(this.tech_&&this.tech_.isReady_){if(method in allowedGetters)return function(middleware,tech,method){return middleware.reduceRight(middlewareIterator(method),tech[method]())}(this.middleware_,this.tech_,method);if(method in allowedMediators)return mediate(this.middleware_,this.tech_,method);try{return this.tech_[method]()}catch(e){if(void 0===this.tech_[method])throw log$1("Video.js: "+method+" method not defined for "+this.techName_+" playback technology.",e),e;if("TypeError"===e.name)throw log$1("Video.js: "+method+" unavailable on "+this.techName_+" playback technology element.",e),this.tech_.isReady_=!1,e;throw log$1(e),e}}},_proto.play=function(){var _this10=this,PromiseClass=this.options_.Promise||window.Promise;return PromiseClass?new PromiseClass((function(resolve){_this10.play_(resolve)})):this.play_()},_proto.play_=function(callback){var _this11=this;void 0===callback&&(callback=silencePromise),this.playCallbacks_.push(callback);var isSrcReady=Boolean(!this.changingSrc_&&(this.src()||this.currentSrc()));if(this.waitToPlay_&&(this.off(["ready","loadstart"],this.waitToPlay_),this.waitToPlay_=null),!this.isReady_||!isSrcReady)return this.waitToPlay_=function(e){_this11.play_()},this.one(["ready","loadstart"],this.waitToPlay_),void(isSrcReady||!IS_ANY_SAFARI&&!IS_IOS||this.load());var val=this.techGet_("play");null===val?this.runPlayTerminatedQueue_():this.runPlayCallbacks_(val)},_proto.runPlayTerminatedQueue_=function(){var queue=this.playTerminatedQueue_.slice(0);this.playTerminatedQueue_=[],queue.forEach((function(q){q()}))},_proto.runPlayCallbacks_=function(val){var callbacks=this.playCallbacks_.slice(0);this.playCallbacks_=[],this.playTerminatedQueue_=[],callbacks.forEach((function(cb){cb(val)}))},_proto.pause=function(){this.techCall_("pause")},_proto.paused=function(){return!1!==this.techGet_("paused")},_proto.played=function(){return this.techGet_("played")||createTimeRanges(0,0)},_proto.scrubbing=function(isScrubbing){if(void 0===isScrubbing)return this.scrubbing_;this.scrubbing_=!!isScrubbing,this.techCall_("setScrubbing",this.scrubbing_),isScrubbing?this.addClass("vjs-scrubbing"):this.removeClass("vjs-scrubbing")},_proto.currentTime=function(seconds){return void 0!==seconds?(seconds<0&&(seconds=0),this.isReady_&&!this.changingSrc_&&this.tech_&&this.tech_.isReady_?(this.techCall_("setCurrentTime",seconds),void(this.cache_.initTime=0)):(this.cache_.initTime=seconds,this.off("canplay",this.boundApplyInitTime_),void this.one("canplay",this.boundApplyInitTime_))):(this.cache_.currentTime=this.techGet_("currentTime")||0,this.cache_.currentTime)},_proto.applyInitTime_=function(){this.currentTime(this.cache_.initTime)},_proto.duration=function(seconds){if(void 0===seconds)return void 0!==this.cache_.duration?this.cache_.duration:NaN;(seconds=parseFloat(seconds))<0&&(seconds=1/0),seconds!==this.cache_.duration&&(this.cache_.duration=seconds,seconds===1/0?this.addClass("vjs-live"):this.removeClass("vjs-live"),isNaN(seconds)||this.trigger("durationchange"))},_proto.remainingTime=function(){return this.duration()-this.currentTime()},_proto.remainingTimeDisplay=function(){return Math.floor(this.duration())-Math.floor(this.currentTime())},_proto.buffered=function(){var buffered=this.techGet_("buffered");return buffered&&buffered.length||(buffered=createTimeRanges(0,0)),buffered},_proto.bufferedPercent=function(){return bufferedPercent(this.buffered(),this.duration())},_proto.bufferedEnd=function(){var buffered=this.buffered(),duration=this.duration(),end=buffered.end(buffered.length-1);return end>duration&&(end=duration),end},_proto.volume=function(percentAsDecimal){var vol;return void 0!==percentAsDecimal?(vol=Math.max(0,Math.min(1,parseFloat(percentAsDecimal))),this.cache_.volume=vol,this.techCall_("setVolume",vol),void(vol>0&&this.lastVolume_(vol))):(vol=parseFloat(this.techGet_("volume")),isNaN(vol)?1:vol)},_proto.muted=function(_muted){if(void 0===_muted)return this.techGet_("muted")||!1;this.techCall_("setMuted",_muted)},_proto.defaultMuted=function(_defaultMuted){return void 0!==_defaultMuted?this.techCall_("setDefaultMuted",_defaultMuted):this.techGet_("defaultMuted")||!1},_proto.lastVolume_=function(percentAsDecimal){if(void 0===percentAsDecimal||0===percentAsDecimal)return this.cache_.lastVolume;this.cache_.lastVolume=percentAsDecimal},_proto.supportsFullScreen=function(){return this.techGet_("supportsFullScreen")||!1},_proto.isFullscreen=function(isFS){if(void 0!==isFS){var oldValue=this.isFullscreen_;return this.isFullscreen_=Boolean(isFS),this.isFullscreen_!==oldValue&&this.fsApi_.prefixed&&this.trigger("fullscreenchange"),void this.toggleFullscreenClass_()}return this.isFullscreen_},_proto.requestFullscreen=function(fullscreenOptions){var PromiseClass=this.options_.Promise||window.Promise;if(PromiseClass){var self=this;return new PromiseClass((function(resolve,reject){function offHandler(){self.off("fullscreenerror",errorHandler),self.off("fullscreenchange",changeHandler)}function changeHandler(){offHandler(),resolve()}function errorHandler(e,err){offHandler(),reject(err)}self.one("fullscreenchange",changeHandler),self.one("fullscreenerror",errorHandler);var promise=self.requestFullscreenHelper_(fullscreenOptions);promise&&(promise.then(offHandler,offHandler),promise.then(resolve,reject))}))}return this.requestFullscreenHelper_()},_proto.requestFullscreenHelper_=function(fullscreenOptions){var fsOptions,_this12=this;if(this.fsApi_.prefixed||(fsOptions=this.options_.fullscreen&&this.options_.fullscreen.options||{},void 0!==fullscreenOptions&&(fsOptions=fullscreenOptions)),this.fsApi_.requestFullscreen){var promise=this.el_[this.fsApi_.requestFullscreen](fsOptions);return promise&&promise.then((function(){return _this12.isFullscreen(!0)}),(function(){return _this12.isFullscreen(!1)})),promise}this.tech_.supportsFullScreen()&&!0==!this.options_.preferFullWindow?this.techCall_("enterFullScreen"):this.enterFullWindow()},_proto.exitFullscreen=function(){var PromiseClass=this.options_.Promise||window.Promise;if(PromiseClass){var self=this;return new PromiseClass((function(resolve,reject){function offHandler(){self.off("fullscreenerror",errorHandler),self.off("fullscreenchange",changeHandler)}function changeHandler(){offHandler(),resolve()}function errorHandler(e,err){offHandler(),reject(err)}self.one("fullscreenchange",changeHandler),self.one("fullscreenerror",errorHandler);var promise=self.exitFullscreenHelper_();promise&&(promise.then(offHandler,offHandler),promise.then(resolve,reject))}))}return this.exitFullscreenHelper_()},_proto.exitFullscreenHelper_=function(){var _this13=this;if(this.fsApi_.requestFullscreen){var promise=document[this.fsApi_.exitFullscreen]();return promise&&silencePromise(promise.then((function(){return _this13.isFullscreen(!1)}))),promise}this.tech_.supportsFullScreen()&&!0==!this.options_.preferFullWindow?this.techCall_("exitFullScreen"):this.exitFullWindow()},_proto.enterFullWindow=function(){this.isFullscreen(!0),this.isFullWindow=!0,this.docOrigOverflow=document.documentElement.style.overflow,on(document,"keydown",this.boundFullWindowOnEscKey_),document.documentElement.style.overflow="hidden",addClass(document.body,"vjs-full-window"),this.trigger("enterFullWindow")},_proto.fullWindowOnEscKey=function(event){keycode.isEventKey(event,"Esc")&&!0===this.isFullscreen()&&(this.isFullWindow?this.exitFullWindow():this.exitFullscreen())},_proto.exitFullWindow=function(){this.isFullscreen(!1),this.isFullWindow=!1,off(document,"keydown",this.boundFullWindowOnEscKey_),document.documentElement.style.overflow=this.docOrigOverflow,removeClass(document.body,"vjs-full-window"),this.trigger("exitFullWindow")},_proto.disablePictureInPicture=function(value){if(void 0===value)return this.techGet_("disablePictureInPicture");this.techCall_("setDisablePictureInPicture",value),this.options_.disablePictureInPicture=value,this.trigger("disablepictureinpicturechanged")},_proto.isInPictureInPicture=function(isPiP){return void 0!==isPiP?(this.isInPictureInPicture_=!!isPiP,void this.togglePictureInPictureClass_()):!!this.isInPictureInPicture_},_proto.requestPictureInPicture=function(){if("pictureInPictureEnabled"in document&&!1===this.disablePictureInPicture())return this.techGet_("requestPictureInPicture")},_proto.exitPictureInPicture=function(){if("pictureInPictureEnabled"in document)return document.exitPictureInPicture()},_proto.handleKeyDown=function(event){var userActions=this.options_.userActions;if(userActions&&userActions.hotkeys){(function(el){var tagName=el.tagName.toLowerCase();if(el.isContentEditable)return!0;if("input"===tagName)return-1===["button","checkbox","hidden","radio","reset","submit"].indexOf(el.type);return-1!==["textarea"].indexOf(tagName)})(this.el_.ownerDocument.activeElement)||("function"==typeof userActions.hotkeys?userActions.hotkeys.call(this,event):this.handleHotkeys(event))}},_proto.handleHotkeys=function(event){var hotkeys=this.options_.userActions?this.options_.userActions.hotkeys:{},_hotkeys$fullscreenKe=hotkeys.fullscreenKey,fullscreenKey=void 0===_hotkeys$fullscreenKe?function(keydownEvent){return keycode.isEventKey(keydownEvent,"f")}:_hotkeys$fullscreenKe,_hotkeys$muteKey=hotkeys.muteKey,muteKey=void 0===_hotkeys$muteKey?function(keydownEvent){return keycode.isEventKey(keydownEvent,"m")}:_hotkeys$muteKey,_hotkeys$playPauseKey=hotkeys.playPauseKey,playPauseKey=void 0===_hotkeys$playPauseKey?function(keydownEvent){return keycode.isEventKey(keydownEvent,"k")||keycode.isEventKey(keydownEvent,"Space")}:_hotkeys$playPauseKey;if(fullscreenKey.call(this,event)){event.preventDefault(),event.stopPropagation();var FSToggle=Component$1.getComponent("FullscreenToggle");!1!==document[this.fsApi_.fullscreenEnabled]&&FSToggle.prototype.handleClick.call(this,event)}else if(muteKey.call(this,event)){event.preventDefault(),event.stopPropagation(),Component$1.getComponent("MuteToggle").prototype.handleClick.call(this,event)}else if(playPauseKey.call(this,event)){event.preventDefault(),event.stopPropagation(),Component$1.getComponent("PlayToggle").prototype.handleClick.call(this,event)}},_proto.canPlayType=function(type){for(var can,i=0,j=this.options_.techOrder;i<j.length;i++){var techName=j[i],tech=Tech.getTech(techName);if(tech||(tech=Component$1.getComponent(techName)),tech){if(tech.isSupported()&&(can=tech.canPlayType(type)))return can}else log$1.error('The "'+techName+'" tech is undefined. Skipped browser support check for that tech.')}return""},_proto.selectSource=function(sources){var fn,_this14=this,techs=this.options_.techOrder.map((function(techName){return[techName,Tech.getTech(techName)]})).filter((function(_ref){var techName=_ref[0],tech=_ref[1];return tech?tech.isSupported():(log$1.error('The "'+techName+'" tech is undefined. Skipped browser support check for that tech.'),!1)})),findFirstPassingTechSourcePair=function(outerArray,innerArray,tester){var found;return outerArray.some((function(outerChoice){return innerArray.some((function(innerChoice){if(found=tester(outerChoice,innerChoice))return!0}))})),found},finder=function(_ref2,source){var techName=_ref2[0];if(_ref2[1].canPlaySource(source,_this14.options_[techName.toLowerCase()]))return{source:source,tech:techName}};return(this.options_.sourceOrder?findFirstPassingTechSourcePair(sources,techs,(fn=finder,function(a,b){return fn(b,a)})):findFirstPassingTechSourcePair(techs,sources,finder))||!1},_proto.handleSrc_=function(source,isRetry){var _this15=this;if(void 0===source)return this.cache_.src||"";this.resetRetryOnError_&&this.resetRetryOnError_();var sources=filterSource(source);if(sources.length){if(this.changingSrc_=!0,isRetry||(this.cache_.sources=sources),this.updateSourceCaches_(sources[0]),setSource(this,sources[0],(function(middlewareSource,mws){var middleware,tech;if(_this15.middleware_=mws,isRetry||(_this15.cache_.sources=sources),_this15.updateSourceCaches_(middlewareSource),_this15.src_(middlewareSource))return sources.length>1?_this15.handleSrc_(sources.slice(1)):(_this15.changingSrc_=!1,_this15.setTimeout((function(){this.error({code:4,message:this.options_.notSupportedMessage})}),0),void _this15.triggerReady());middleware=mws,tech=_this15.tech_,middleware.forEach((function(mw){return mw.setTech&&mw.setTech(tech)}))})),this.options_.retryOnError&&sources.length>1){var retry=function(){_this15.error(null),_this15.handleSrc_(sources.slice(1),!0)},stopListeningForErrors=function(){_this15.off("error",retry)};this.one("error",retry),this.one("playing",stopListeningForErrors),this.resetRetryOnError_=function(){_this15.off("error",retry),_this15.off("playing",stopListeningForErrors)}}}else this.setTimeout((function(){this.error({code:4,message:this.options_.notSupportedMessage})}),0)},_proto.src=function(source){return this.handleSrc_(source,!1)},_proto.src_=function(source){var str1,str2,_this16=this,sourceTech=this.selectSource([source]);return!sourceTech||(str1=sourceTech.tech,str2=this.techName_,toTitleCase$1(str1)!==toTitleCase$1(str2)?(this.changingSrc_=!0,this.loadTech_(sourceTech.tech,sourceTech.source),this.tech_.ready((function(){_this16.changingSrc_=!1})),!1):(this.ready((function(){this.tech_.constructor.prototype.hasOwnProperty("setSource")?this.techCall_("setSource",source):this.techCall_("src",source.src),this.changingSrc_=!1}),!0),!1))},_proto.load=function(){this.techCall_("load")},_proto.reset=function(){var _this17=this,PromiseClass=this.options_.Promise||window.Promise;this.paused()||!PromiseClass?this.doReset_():silencePromise(this.play().then((function(){return _this17.doReset_()})))},_proto.doReset_=function(){this.tech_&&this.tech_.clearTracks("text"),this.resetCache_(),this.poster(""),this.loadTech_(this.options_.techOrder[0],null),this.techCall_("reset"),this.resetControlBarUI_(),isEvented(this)&&this.trigger("playerreset")},_proto.resetControlBarUI_=function(){this.resetProgressBar_(),this.resetPlaybackRate_(),this.resetVolumeBar_()},_proto.resetProgressBar_=function(){this.currentTime(0);var _ref3=this.controlBar||{},durationDisplay=_ref3.durationDisplay,remainingTimeDisplay=_ref3.remainingTimeDisplay;durationDisplay&&durationDisplay.updateContent(),remainingTimeDisplay&&remainingTimeDisplay.updateContent()},_proto.resetPlaybackRate_=function(){this.playbackRate(this.defaultPlaybackRate()),this.handleTechRateChange_()},_proto.resetVolumeBar_=function(){this.volume(1),this.trigger("volumechange")},_proto.currentSources=function(){var source=this.currentSource(),sources=[];return 0!==Object.keys(source).length&&sources.push(source),this.cache_.sources||sources},_proto.currentSource=function(){return this.cache_.source||{}},_proto.currentSrc=function(){return this.currentSource()&&this.currentSource().src||""},_proto.currentType=function(){return this.currentSource()&&this.currentSource().type||""},_proto.preload=function(value){return void 0!==value?(this.techCall_("setPreload",value),void(this.options_.preload=value)):this.techGet_("preload")},_proto.autoplay=function(value){if(void 0===value)return this.options_.autoplay||!1;var techAutoplay;"string"==typeof value&&/(any|play|muted)/.test(value)||!0===value&&this.options_.normalizeAutoplay?(this.options_.autoplay=value,this.manualAutoplay_("string"==typeof value?value:"play"),techAutoplay=!1):this.options_.autoplay=!!value,techAutoplay=void 0===techAutoplay?this.options_.autoplay:techAutoplay,this.tech_&&this.techCall_("setAutoplay",techAutoplay)},_proto.playsinline=function(value){return void 0!==value?(this.techCall_("setPlaysinline",value),this.options_.playsinline=value,this):this.techGet_("playsinline")},_proto.loop=function(value){return void 0!==value?(this.techCall_("setLoop",value),void(this.options_.loop=value)):this.techGet_("loop")},_proto.poster=function(src){if(void 0===src)return this.poster_;src||(src=""),src!==this.poster_&&(this.poster_=src,this.techCall_("setPoster",src),this.isPosterFromTech_=!1,this.trigger("posterchange"))},_proto.handleTechPosterChange_=function(){if((!this.poster_||this.options_.techCanOverridePoster)&&this.tech_&&this.tech_.poster){var newPoster=this.tech_.poster()||"";newPoster!==this.poster_&&(this.poster_=newPoster,this.isPosterFromTech_=!0,this.trigger("posterchange"))}},_proto.controls=function(bool){if(void 0===bool)return!!this.controls_;bool=!!bool,this.controls_!==bool&&(this.controls_=bool,this.usingNativeControls()&&this.techCall_("setControls",bool),this.controls_?(this.removeClass("vjs-controls-disabled"),this.addClass("vjs-controls-enabled"),this.trigger("controlsenabled"),this.usingNativeControls()||this.addTechControlsListeners_()):(this.removeClass("vjs-controls-enabled"),this.addClass("vjs-controls-disabled"),this.trigger("controlsdisabled"),this.usingNativeControls()||this.removeTechControlsListeners_()))},_proto.usingNativeControls=function(bool){if(void 0===bool)return!!this.usingNativeControls_;bool=!!bool,this.usingNativeControls_!==bool&&(this.usingNativeControls_=bool,this.usingNativeControls_?(this.addClass("vjs-using-native-controls"),this.trigger("usingnativecontrols")):(this.removeClass("vjs-using-native-controls"),this.trigger("usingcustomcontrols")))},_proto.error=function(err){var _this18=this;if(void 0===err)return this.error_||null;if(hooks("beforeerror").forEach((function(hookFunction){var newErr=hookFunction(_this18,err);isObject$1(newErr)&&!Array.isArray(newErr)||"string"==typeof newErr||"number"==typeof newErr||null===newErr?err=newErr:_this18.log.error("please return a value that MediaError expects in beforeerror hooks")})),this.options_.suppressNotSupportedError&&err&&4===err.code){var triggerSuppressedError=function(){this.error(err)};return this.options_.suppressNotSupportedError=!1,this.any(["click","touchstart"],triggerSuppressedError),void this.one("loadstart",(function(){this.off(["click","touchstart"],triggerSuppressedError)}))}if(null===err)return this.error_=err,this.removeClass("vjs-error"),void(this.errorDisplay&&this.errorDisplay.close());this.error_=new MediaError(err),this.addClass("vjs-error"),log$1.error("(CODE:"+this.error_.code+" "+MediaError.errorTypes[this.error_.code]+")",this.error_.message,this.error_),this.trigger("error"),hooks("error").forEach((function(hookFunction){return hookFunction(_this18,_this18.error_)}))},_proto.reportUserActivity=function(event){this.userActivity_=!0},_proto.userActive=function(bool){if(void 0===bool)return this.userActive_;if((bool=!!bool)!==this.userActive_){if(this.userActive_=bool,this.userActive_)return this.userActivity_=!0,this.removeClass("vjs-user-inactive"),this.addClass("vjs-user-active"),void this.trigger("useractive");this.tech_&&this.tech_.one("mousemove",(function(e){e.stopPropagation(),e.preventDefault()})),this.userActivity_=!1,this.removeClass("vjs-user-active"),this.addClass("vjs-user-inactive"),this.trigger("userinactive")}},_proto.listenForUserActivity_=function(){var mouseInProgress,lastMoveX,lastMoveY,handleActivity=bind(this,this.reportUserActivity),handleMouseUpAndMouseLeave=function(event){handleActivity(),this.clearInterval(mouseInProgress)};this.on("mousedown",(function(){handleActivity(),this.clearInterval(mouseInProgress),mouseInProgress=this.setInterval(handleActivity,250)})),this.on("mousemove",(function(e){e.screenX===lastMoveX&&e.screenY===lastMoveY||(lastMoveX=e.screenX,lastMoveY=e.screenY,handleActivity())})),this.on("mouseup",handleMouseUpAndMouseLeave),this.on("mouseleave",handleMouseUpAndMouseLeave);var inactivityTimeout,controlBar=this.getChild("controlBar");!controlBar||IS_IOS||IS_ANDROID||(controlBar.on("mouseenter",(function(event){0!==this.player().options_.inactivityTimeout&&(this.player().cache_.inactivityTimeout=this.player().options_.inactivityTimeout),this.player().options_.inactivityTimeout=0})),controlBar.on("mouseleave",(function(event){this.player().options_.inactivityTimeout=this.player().cache_.inactivityTimeout}))),this.on("keydown",handleActivity),this.on("keyup",handleActivity),this.setInterval((function(){if(this.userActivity_){this.userActivity_=!1,this.userActive(!0),this.clearTimeout(inactivityTimeout);var timeout=this.options_.inactivityTimeout;timeout<=0||(inactivityTimeout=this.setTimeout((function(){this.userActivity_||this.userActive(!1)}),timeout))}}),250)},_proto.playbackRate=function(rate){if(void 0===rate)return this.tech_&&this.tech_.featuresPlaybackRate?this.cache_.lastPlaybackRate||this.techGet_("playbackRate"):1;this.techCall_("setPlaybackRate",rate)},_proto.defaultPlaybackRate=function(rate){return void 0!==rate?this.techCall_("setDefaultPlaybackRate",rate):this.tech_&&this.tech_.featuresPlaybackRate?this.techGet_("defaultPlaybackRate"):1},_proto.isAudio=function(bool){if(void 0===bool)return!!this.isAudio_;this.isAudio_=!!bool},_proto.enableAudioOnlyUI_=function(){var _this19=this;this.addClass("vjs-audio-only-mode");var playerChildren=this.children(),controlBar=this.getChild("ControlBar"),controlBarHeight=controlBar&&controlBar.currentHeight();playerChildren.forEach((function(child){child!==controlBar&&child.el_&&!child.hasClass("vjs-hidden")&&(child.hide(),_this19.audioOnlyCache_.hiddenChildren.push(child))})),this.audioOnlyCache_.playerHeight=this.currentHeight(),this.height(controlBarHeight),this.trigger("audioonlymodechange")},_proto.disableAudioOnlyUI_=function(){this.removeClass("vjs-audio-only-mode"),this.audioOnlyCache_.hiddenChildren.forEach((function(child){return child.show()})),this.height(this.audioOnlyCache_.playerHeight),this.trigger("audioonlymodechange")},_proto.audioOnlyMode=function(value){var _this20=this;if("boolean"!=typeof value||value===this.audioOnlyMode_)return this.audioOnlyMode_;this.audioOnlyMode_=value;var PromiseClass=this.options_.Promise||window.Promise;if(PromiseClass){if(value){var exitPromises=[];return this.isInPictureInPicture()&&exitPromises.push(this.exitPictureInPicture()),this.isFullscreen()&&exitPromises.push(this.exitFullscreen()),this.audioPosterMode()&&exitPromises.push(this.audioPosterMode(!1)),PromiseClass.all(exitPromises).then((function(){return _this20.enableAudioOnlyUI_()}))}return PromiseClass.resolve().then((function(){return _this20.disableAudioOnlyUI_()}))}value?(this.isInPictureInPicture()&&this.exitPictureInPicture(),this.isFullscreen()&&this.exitFullscreen(),this.enableAudioOnlyUI_()):this.disableAudioOnlyUI_()},_proto.enablePosterModeUI_=function(){(this.tech_&&this.tech_).hide(),this.addClass("vjs-audio-poster-mode"),this.trigger("audiopostermodechange")},_proto.disablePosterModeUI_=function(){(this.tech_&&this.tech_).show(),this.removeClass("vjs-audio-poster-mode"),this.trigger("audiopostermodechange")},_proto.audioPosterMode=function(value){var _this21=this;if("boolean"!=typeof value||value===this.audioPosterMode_)return this.audioPosterMode_;this.audioPosterMode_=value;var PromiseClass=this.options_.Promise||window.Promise;return PromiseClass?value?this.audioOnlyMode()?this.audioOnlyMode(!1).then((function(){_this21.enablePosterModeUI_()})):PromiseClass.resolve().then((function(){_this21.enablePosterModeUI_()})):PromiseClass.resolve().then((function(){_this21.disablePosterModeUI_()})):value?(this.audioOnlyMode()&&this.audioOnlyMode(!1),void this.enablePosterModeUI_()):void this.disablePosterModeUI_()},_proto.addTextTrack=function(kind,label,language){if(this.tech_)return this.tech_.addTextTrack(kind,label,language)},_proto.addRemoteTextTrack=function(options,manualCleanup){if(this.tech_)return this.tech_.addRemoteTextTrack(options,manualCleanup)},_proto.removeRemoteTextTrack=function(obj){void 0===obj&&(obj={});var track=obj.track;if(track||(track=obj),this.tech_)return this.tech_.removeRemoteTextTrack(track)},_proto.getVideoPlaybackQuality=function(){return this.techGet_("getVideoPlaybackQuality")},_proto.videoWidth=function(){return this.tech_&&this.tech_.videoWidth&&this.tech_.videoWidth()||0},_proto.videoHeight=function(){return this.tech_&&this.tech_.videoHeight&&this.tech_.videoHeight()||0},_proto.language=function(code){if(void 0===code)return this.language_;this.language_!==String(code).toLowerCase()&&(this.language_=String(code).toLowerCase(),isEvented(this)&&this.trigger("languagechange"))},_proto.languages=function(){return mergeOptions$3(Player.prototype.options_.languages,this.languages_)},_proto.toJSON=function(){var options=mergeOptions$3(this.options_),tracks=options.tracks;options.tracks=[];for(var i=0;i<tracks.length;i++){var track=tracks[i];(track=mergeOptions$3(track)).player=void 0,options.tracks[i]=track}return options},_proto.createModal=function(content,options){var _this22=this;(options=options||{}).content=content||"";var modal=new ModalDialog(this,options);return this.addChild(modal),modal.on("dispose",(function(){_this22.removeChild(modal)})),modal.open(),modal},_proto.updateCurrentBreakpoint_=function(){if(this.responsive())for(var currentBreakpoint=this.currentBreakpoint(),currentWidth=this.currentWidth(),i=0;i<BREAKPOINT_ORDER.length;i++){var candidateBreakpoint=BREAKPOINT_ORDER[i];if(currentWidth<=this.breakpoints_[candidateBreakpoint]){if(currentBreakpoint===candidateBreakpoint)return;currentBreakpoint&&this.removeClass(BREAKPOINT_CLASSES[currentBreakpoint]),this.addClass(BREAKPOINT_CLASSES[candidateBreakpoint]),this.breakpoint_=candidateBreakpoint;break}}},_proto.removeCurrentBreakpoint_=function(){var className=this.currentBreakpointClass();this.breakpoint_="",className&&this.removeClass(className)},_proto.breakpoints=function(_breakpoints){return void 0===_breakpoints||(this.breakpoint_="",this.breakpoints_=assign({},DEFAULT_BREAKPOINTS,_breakpoints),this.updateCurrentBreakpoint_()),assign(this.breakpoints_)},_proto.responsive=function(value){return void 0===value?this.responsive_:(value=Boolean(value))!==this.responsive_?(this.responsive_=value,value?(this.on("playerresize",this.boundUpdateCurrentBreakpoint_),this.updateCurrentBreakpoint_()):(this.off("playerresize",this.boundUpdateCurrentBreakpoint_),this.removeCurrentBreakpoint_()),value):void 0},_proto.currentBreakpoint=function(){return this.breakpoint_},_proto.currentBreakpointClass=function(){return BREAKPOINT_CLASSES[this.breakpoint_]||""},_proto.loadMedia=function(media,ready){var _this23=this;if(media&&"object"==typeof media){this.reset(),this.cache_.media=mergeOptions$3(media);var _this$cache_$media=this.cache_.media,artwork=_this$cache_$media.artwork,poster=_this$cache_$media.poster,src=_this$cache_$media.src,textTracks=_this$cache_$media.textTracks;!artwork&&poster&&(this.cache_.media.artwork=[{src:poster,type:getMimetype(poster)}]),src&&this.src(src),poster&&this.poster(poster),Array.isArray(textTracks)&&textTracks.forEach((function(tt){return _this23.addRemoteTextTrack(tt,!1)})),this.ready(ready)}},_proto.getMedia=function(){if(!this.cache_.media){var poster=this.poster(),media={src:this.currentSources(),textTracks:Array.prototype.map.call(this.remoteTextTracks(),(function(tt){return{kind:tt.kind,label:tt.label,language:tt.language,src:tt.src}}))};return poster&&(media.poster=poster,media.artwork=[{src:media.poster,type:getMimetype(media.poster)}]),media}return mergeOptions$3(this.cache_.media)},Player.getTagSettings=function(tag){var baseOptions={sources:[],tracks:[]},tagOptions=getAttributes(tag),dataSetup=tagOptions["data-setup"];if(hasClass(tag,"vjs-fill")&&(tagOptions.fill=!0),hasClass(tag,"vjs-fluid")&&(tagOptions.fluid=!0),null!==dataSetup){var _safeParseTuple=tuple(dataSetup||"{}"),err=_safeParseTuple[0],data=_safeParseTuple[1];err&&log$1.error(err),assign(tagOptions,data)}if(assign(baseOptions,tagOptions),tag.hasChildNodes())for(var children=tag.childNodes,i=0,j=children.length;i<j;i++){var child=children[i],childName=child.nodeName.toLowerCase();"source"===childName?baseOptions.sources.push(getAttributes(child)):"track"===childName&&baseOptions.tracks.push(getAttributes(child))}return baseOptions},_proto.flexNotSupported_=function(){var elem=document.createElement("i");return!("flexBasis"in elem.style||"webkitFlexBasis"in elem.style||"mozFlexBasis"in elem.style||"msFlexBasis"in elem.style||"msFlexOrder"in elem.style)},_proto.debug=function(enabled){if(void 0===enabled)return this.debugEnabled_;enabled?(this.trigger("debugon"),this.previousLogLevel_=this.log.level,this.log.level("debug"),this.debugEnabled_=!0):(this.trigger("debugoff"),this.log.level(this.previousLogLevel_),this.previousLogLevel_=void 0,this.debugEnabled_=!1)},_proto.playbackRates=function(newRates){if(void 0===newRates)return this.cache_.playbackRates;Array.isArray(newRates)&&newRates.every((function(rate){return"number"==typeof rate}))&&(this.cache_.playbackRates=newRates,this.trigger("playbackrateschange"))},Player}(Component$1);ALL.names.forEach((function(name){var props=ALL[name];Player.prototype[props.getterName]=function(){return this.tech_?this.tech_[props.getterName]():(this[props.privateName]=this[props.privateName]||new props.ListClass,this[props.privateName])}})),Player.prototype.crossorigin=Player.prototype.crossOrigin,Player.players={};var navigator=window.navigator;Player.prototype.options_={techOrder:Tech.defaultTechOrder_,html5:{},inactivityTimeout:2e3,playbackRates:[],liveui:!1,children:["mediaLoader","posterImage","textTrackDisplay","loadingSpinner","bigPlayButton","liveTracker","controlBar","errorDisplay","textTrackSettings","resizeManager"],language:navigator&&(navigator.languages&&navigator.languages[0]||navigator.userLanguage||navigator.language)||"en",languages:{},notSupportedMessage:"No compatible source was found for this media.",normalizeAutoplay:!1,fullscreen:{options:{navigationUI:"hide"}},breakpoints:{},responsive:!1,audioOnlyMode:!1,audioPosterMode:!1},["ended","seeking","seekable","networkState","readyState"].forEach((function(fn){Player.prototype[fn]=function(){return this.techGet_(fn)}})),TECH_EVENTS_RETRIGGER.forEach((function(event){Player.prototype["handleTech"+toTitleCase$1(event)+"_"]=function(){return this.trigger(event)}})),Component$1.registerComponent("Player",Player);var setPrototypeOf=createCommonjsModule((function(module){function _setPrototypeOf(o,p){return module.exports=_setPrototypeOf=Object.setPrototypeOf||function(o,p){return o.__proto__=p,o},_setPrototypeOf(o,p)}module.exports=_setPrototypeOf}));var isNativeReflectConstruct=function(){if("undefined"==typeof Reflect||!Reflect.construct)return!1;if(Reflect.construct.sham)return!1;if("function"==typeof Proxy)return!0;try{return Date.prototype.toString.call(Reflect.construct(Date,[],(function(){}))),!0}catch(e){return!1}},construct=createCommonjsModule((function(module){function _construct(Parent,args,Class){return isNativeReflectConstruct()?module.exports=_construct=Reflect.construct:module.exports=_construct=function(Parent,args,Class){var a=[null];a.push.apply(a,args);var instance=new(Function.bind.apply(Parent,a));return Class&&setPrototypeOf(instance,Class.prototype),instance},_construct.apply(null,arguments)}module.exports=_construct})),pluginStorage={},pluginExists=function(name){return pluginStorage.hasOwnProperty(name)},getPlugin=function(name){return pluginExists(name)?pluginStorage[name]:void 0},markPluginAsActive=function(player,name){player.activePlugins_=player.activePlugins_||{},player.activePlugins_[name]=!0},triggerSetupEvent=function(player,hash,before){var eventName=(before?"before":"")+"pluginsetup";player.trigger(eventName,hash),player.trigger(eventName+":"+hash.name,hash)},createPluginFactory=function(name,PluginSubClass){return PluginSubClass.prototype.name=name,function(){triggerSetupEvent(this,{name:name,plugin:PluginSubClass,instance:null},!0);for(var _len=arguments.length,args=new Array(_len),_key=0;_key<_len;_key++)args[_key]=arguments[_key];var instance=construct(PluginSubClass,[this].concat(args));return this[name]=function(){return instance},triggerSetupEvent(this,instance.getEventHash()),instance}},Plugin=function(){function Plugin(player){if(this.constructor===Plugin)throw new Error("Plugin must be sub-classed; not directly instantiated.");this.player=player,this.log||(this.log=this.player.log.createLogger(this.name)),evented(this),delete this.trigger,stateful(this,this.constructor.defaultState),markPluginAsActive(player,this.name),this.dispose=this.dispose.bind(this),player.on("dispose",this.dispose)}var _proto=Plugin.prototype;return _proto.version=function(){return this.constructor.VERSION},_proto.getEventHash=function(hash){return void 0===hash&&(hash={}),hash.name=this.name,hash.plugin=this.constructor,hash.instance=this,hash},_proto.trigger=function(event,hash){return void 0===hash&&(hash={}),trigger(this.eventBusEl_,event,this.getEventHash(hash))},_proto.handleStateChanged=function(e){},_proto.dispose=function(){var name=this.name,player=this.player;this.trigger("dispose"),this.off(),player.off("dispose",this.dispose),player.activePlugins_[name]=!1,this.player=this.state=null,player[name]=createPluginFactory(name,pluginStorage[name])},Plugin.isBasic=function(plugin){var p="string"==typeof plugin?getPlugin(plugin):plugin;return"function"==typeof p&&!Plugin.prototype.isPrototypeOf(p.prototype)},Plugin.registerPlugin=function(name,plugin){if("string"!=typeof name)throw new Error('Illegal plugin name, "'+name+'", must be a string, was '+typeof name+".");if(pluginExists(name))log$1.warn('A plugin named "'+name+'" already exists. You may want to avoid re-registering plugins!');else if(Player.prototype.hasOwnProperty(name))throw new Error('Illegal plugin name, "'+name+'", cannot share a name with an existing player method!');if("function"!=typeof plugin)throw new Error('Illegal plugin for "'+name+'", must be a function, was '+typeof plugin+".");return pluginStorage[name]=plugin,"plugin"!==name&&(Plugin.isBasic(plugin)?Player.prototype[name]=function(name,plugin){var basicPluginWrapper=function(){triggerSetupEvent(this,{name:name,plugin:plugin,instance:null},!0);var instance=plugin.apply(this,arguments);return markPluginAsActive(this,name),triggerSetupEvent(this,{name:name,plugin:plugin,instance:instance}),instance};return Object.keys(plugin).forEach((function(prop){basicPluginWrapper[prop]=plugin[prop]})),basicPluginWrapper}(name,plugin):Player.prototype[name]=createPluginFactory(name,plugin)),plugin},Plugin.deregisterPlugin=function(name){if("plugin"===name)throw new Error("Cannot de-register base plugin.");pluginExists(name)&&(delete pluginStorage[name],delete Player.prototype[name])},Plugin.getPlugins=function(names){var result;return void 0===names&&(names=Object.keys(pluginStorage)),names.forEach((function(name){var plugin=getPlugin(name);plugin&&((result=result||{})[name]=plugin)})),result},Plugin.getPluginVersion=function(name){var plugin=getPlugin(name);return plugin&&plugin.VERSION||""},Plugin}();Plugin.getPlugin=getPlugin,Plugin.BASE_PLUGIN_NAME="plugin",Plugin.registerPlugin("plugin",Plugin),Player.prototype.usingPlugin=function(name){return!!this.activePlugins_&&!0===this.activePlugins_[name]},Player.prototype.hasPlugin=function(name){return!!pluginExists(name)};var inherits=function(subClass,superClass){if("function"!=typeof superClass&&null!==superClass)throw new TypeError("Super expression must either be null or a function");subClass.prototype=Object.create(superClass&&superClass.prototype,{constructor:{value:subClass,writable:!0,configurable:!0}}),superClass&&setPrototypeOf(subClass,superClass)},normalizeId=function(id){return 0===id.indexOf("#")?id.slice(1):id};function videojs(id,options,ready){var player=videojs.getPlayer(id);if(player)return options&&log$1.warn('Player "'+id+'" is already initialised. Options will not be applied.'),ready&&player.ready(ready),player;var el="string"==typeof id?$("#"+normalizeId(id)):id;if(!isEl(el))throw new TypeError("The element or ID supplied is not valid. (videojs)");el.ownerDocument.defaultView&&el.ownerDocument.body.contains(el)||log$1.warn("The element supplied is not included in the DOM"),!0===(options=options||{}).restoreEl&&(options.restoreEl=(el.parentNode&&el.parentNode.hasAttribute("data-vjs-player")?el.parentNode:el).cloneNode(!0)),hooks("beforesetup").forEach((function(hookFunction){var opts=hookFunction(el,mergeOptions$3(options));isObject$1(opts)&&!Array.isArray(opts)?options=mergeOptions$3(options,opts):log$1.error("please return an object in beforesetup hooks")}));var PlayerComponent=Component$1.getComponent("Player");return player=new PlayerComponent(el,options,ready),hooks("setup").forEach((function(hookFunction){return hookFunction(player)})),player}if(videojs.hooks_=hooks_,videojs.hooks=hooks,videojs.hook=function(type,fn){hooks(type,fn)},videojs.hookOnce=function(type,fn){hooks(type,[].concat(fn).map((function(original){return function wrapper(){return removeHook(type,wrapper),original.apply(void 0,arguments)}})))},videojs.removeHook=removeHook,!0!==window.VIDEOJS_NO_DYNAMIC_STYLE&&isReal()){var style=$(".vjs-styles-defaults");if(!style){style=createStyleElement("vjs-styles-defaults");var head=$("head");head&&head.insertBefore(style,head.firstChild),setTextContent(style,"\n      .video-js {\n        width: 300px;\n        height: 150px;\n      }\n\n      .vjs-fluid:not(.vjs-audio-only-mode) {\n        padding-top: 56.25%\n      }\n    ")}}autoSetupTimeout(1,videojs),videojs.VERSION="7.20.3",videojs.options=Player.prototype.options_,videojs.getPlayers=function(){return Player.players},videojs.getPlayer=function(id){var tag,players=Player.players;if("string"==typeof id){var nId=normalizeId(id),player=players[nId];if(player)return player;tag=$("#"+nId)}else tag=id;if(isEl(tag)){var _tag=tag,_player=_tag.player,playerId=_tag.playerId;if(_player||players[playerId])return _player||players[playerId]}},videojs.getAllPlayers=function(){return Object.keys(Player.players).map((function(k){return Player.players[k]})).filter(Boolean)},videojs.players=Player.players,videojs.getComponent=Component$1.getComponent,videojs.registerComponent=function(name,comp){Tech.isTech(comp)&&log$1.warn("The "+name+" tech was registered as a component. It should instead be registered using videojs.registerTech(name, tech)"),Component$1.registerComponent.call(Component$1,name,comp)},videojs.getTech=Tech.getTech,videojs.registerTech=Tech.registerTech,videojs.use=function(type,middleware){middlewares[type]=middlewares[type]||[],middlewares[type].push(middleware)},Object.defineProperty(videojs,"middleware",{value:{},writeable:!1,enumerable:!0}),Object.defineProperty(videojs.middleware,"TERMINATOR",{value:TERMINATOR,writeable:!1,enumerable:!0}),videojs.browser=browser,videojs.TOUCH_ENABLED=TOUCH_ENABLED,videojs.extend=function(superClass,subClassMethods){void 0===subClassMethods&&(subClassMethods={});var subClass=function(){superClass.apply(this,arguments)},methods={};for(var name in"object"==typeof subClassMethods?(subClassMethods.constructor!==Object.prototype.constructor&&(subClass=subClassMethods.constructor),methods=subClassMethods):"function"==typeof subClassMethods&&(subClass=subClassMethods),inherits(subClass,superClass),superClass&&(subClass.super_=superClass),methods)methods.hasOwnProperty(name)&&(subClass.prototype[name]=methods[name]);return subClass},videojs.mergeOptions=mergeOptions$3,videojs.bind=bind,videojs.registerPlugin=Plugin.registerPlugin,videojs.deregisterPlugin=Plugin.deregisterPlugin,videojs.plugin=function(name,plugin){return log$1.warn("videojs.plugin() is deprecated; use videojs.registerPlugin() instead"),Plugin.registerPlugin(name,plugin)},videojs.getPlugins=Plugin.getPlugins,videojs.getPlugin=Plugin.getPlugin,videojs.getPluginVersion=Plugin.getPluginVersion,videojs.addLanguage=function(code,data){var _mergeOptions;return code=(""+code).toLowerCase(),videojs.options.languages=mergeOptions$3(videojs.options.languages,((_mergeOptions={})[code]=data,_mergeOptions)),videojs.options.languages[code]},videojs.log=log$1,videojs.createLogger=createLogger,videojs.createTimeRange=videojs.createTimeRanges=createTimeRanges,videojs.formatTime=formatTime,videojs.setFormatTime=function(customImplementation){implementation=customImplementation},videojs.resetFormatTime=function(){implementation=defaultImplementation},videojs.parseUrl=parseUrl,videojs.isCrossOrigin=isCrossOrigin,videojs.EventTarget=EventTarget$2,videojs.on=on,videojs.one=one,videojs.off=off,videojs.trigger=trigger,videojs.xhr=lib,videojs.TextTrack=TextTrack,videojs.AudioTrack=AudioTrack,videojs.VideoTrack=VideoTrack,["isEl","isTextNode","createEl","hasClass","addClass","removeClass","toggleClass","setAttributes","getAttributes","emptyEl","appendContent","insertContent"].forEach((function(k){videojs[k]=function(){return log$1.warn("videojs."+k+"() is deprecated; use videojs.dom."+k+"() instead"),Dom[k].apply(null,arguments)}})),videojs.computedStyle=computedStyle,videojs.dom=Dom,videojs.url=Url,videojs.defineLazyProperty=defineLazyProperty,videojs.addLanguage("en",{"Non-Fullscreen":"Exit Fullscreen"});var urlToolkit=createCommonjsModule((function(module,exports){var URL_REGEX,FIRST_SEGMENT_REGEX,SLASH_DOT_REGEX,SLASH_DOT_DOT_REGEX,URLToolkit;URL_REGEX=/^((?:[a-zA-Z0-9+\-.]+:)?)(\/\/[^\/?#]*)?((?:[^\/?#]*\/)*[^;?#]*)?(;[^?#]*)?(\?[^#]*)?(#[^]*)?$/,FIRST_SEGMENT_REGEX=/^([^\/?#]*)([^]*)$/,SLASH_DOT_REGEX=/(?:\/|^)\.(?=\/)/g,SLASH_DOT_DOT_REGEX=/(?:\/|^)\.\.\/(?!\.\.\/)[^\/]*(?=\/)/g,URLToolkit={buildAbsoluteURL:function(baseURL,relativeURL,opts){if(opts=opts||{},baseURL=baseURL.trim(),!(relativeURL=relativeURL.trim())){if(!opts.alwaysNormalize)return baseURL;var basePartsForNormalise=URLToolkit.parseURL(baseURL);if(!basePartsForNormalise)throw new Error("Error trying to parse base URL.");return basePartsForNormalise.path=URLToolkit.normalizePath(basePartsForNormalise.path),URLToolkit.buildURLFromParts(basePartsForNormalise)}var relativeParts=URLToolkit.parseURL(relativeURL);if(!relativeParts)throw new Error("Error trying to parse relative URL.");if(relativeParts.scheme)return opts.alwaysNormalize?(relativeParts.path=URLToolkit.normalizePath(relativeParts.path),URLToolkit.buildURLFromParts(relativeParts)):relativeURL;var baseParts=URLToolkit.parseURL(baseURL);if(!baseParts)throw new Error("Error trying to parse base URL.");if(!baseParts.netLoc&&baseParts.path&&"/"!==baseParts.path[0]){var pathParts=FIRST_SEGMENT_REGEX.exec(baseParts.path);baseParts.netLoc=pathParts[1],baseParts.path=pathParts[2]}baseParts.netLoc&&!baseParts.path&&(baseParts.path="/");var builtParts={scheme:baseParts.scheme,netLoc:relativeParts.netLoc,path:null,params:relativeParts.params,query:relativeParts.query,fragment:relativeParts.fragment};if(!relativeParts.netLoc&&(builtParts.netLoc=baseParts.netLoc,"/"!==relativeParts.path[0]))if(relativeParts.path){var baseURLPath=baseParts.path,newPath=baseURLPath.substring(0,baseURLPath.lastIndexOf("/")+1)+relativeParts.path;builtParts.path=URLToolkit.normalizePath(newPath)}else builtParts.path=baseParts.path,relativeParts.params||(builtParts.params=baseParts.params,relativeParts.query||(builtParts.query=baseParts.query));return null===builtParts.path&&(builtParts.path=opts.alwaysNormalize?URLToolkit.normalizePath(relativeParts.path):relativeParts.path),URLToolkit.buildURLFromParts(builtParts)},parseURL:function(url){var parts=URL_REGEX.exec(url);return parts?{scheme:parts[1]||"",netLoc:parts[2]||"",path:parts[3]||"",params:parts[4]||"",query:parts[5]||"",fragment:parts[6]||""}:null},normalizePath:function(path){for(path=path.split("").reverse().join("").replace(SLASH_DOT_REGEX,"");path.length!==(path=path.replace(SLASH_DOT_DOT_REGEX,"")).length;);return path.split("").reverse().join("")},buildURLFromParts:function(parts){return parts.scheme+parts.netLoc+parts.path+parts.params+parts.query+parts.fragment}},module.exports=URLToolkit})),Stream=function(){function Stream(){this.listeners={}}var _proto=Stream.prototype;return _proto.on=function(type,listener){this.listeners[type]||(this.listeners[type]=[]),this.listeners[type].push(listener)},_proto.off=function(type,listener){if(!this.listeners[type])return!1;var index=this.listeners[type].indexOf(listener);return this.listeners[type]=this.listeners[type].slice(0),this.listeners[type].splice(index,1),index>-1},_proto.trigger=function(type){var callbacks=this.listeners[type];if(callbacks)if(2===arguments.length)for(var length=callbacks.length,i=0;i<length;++i)callbacks[i].call(this,arguments[1]);else for(var args=Array.prototype.slice.call(arguments,1),_length=callbacks.length,_i=0;_i<_length;++_i)callbacks[_i].apply(this,args)},_proto.dispose=function(){this.listeners={}},_proto.pipe=function(destination){this.on("data",(function(data){destination.push(data)}))},Stream}();function decodeB64ToUint8Array$1(b64Text){for(var s,decodedString=(s=b64Text,window.atob?window.atob(s):Buffer.from(s,"base64").toString("binary")),array=new Uint8Array(decodedString.length),i=0;i<decodedString.length;i++)array[i]=decodedString.charCodeAt(i);return array}
-/*! @name m3u8-parser @version 4.7.1 @license Apache-2.0 */var LineStream=function(_Stream){function LineStream(){var _this;return(_this=_Stream.call(this)||this).buffer="",_this}return inheritsLoose(LineStream,_Stream),LineStream.prototype.push=function(data){var nextNewline;for(this.buffer+=data,nextNewline=this.buffer.indexOf("\n");nextNewline>-1;nextNewline=this.buffer.indexOf("\n"))this.trigger("data",this.buffer.substring(0,nextNewline)),this.buffer=this.buffer.substring(nextNewline+1)},LineStream}(Stream),TAB=String.fromCharCode(9),parseByterange=function(byterangeString){var match=/([0-9.]*)?@?([0-9.]*)?/.exec(byterangeString||""),result={};return match[1]&&(result.length=parseInt(match[1],10)),match[2]&&(result.offset=parseInt(match[2],10)),result},parseAttributes$1=function(attributes){for(var attr,attrs=attributes.split(new RegExp('(?:^|,)((?:[^=]*)=(?:"[^"]*"|[^,]*))')),result={},i=attrs.length;i--;)""!==attrs[i]&&((attr=/([^=]*)=(.*)/.exec(attrs[i]).slice(1))[0]=attr[0].replace(/^\s+|\s+$/g,""),attr[1]=attr[1].replace(/^\s+|\s+$/g,""),attr[1]=attr[1].replace(/^['"](.*)['"]$/g,"$1"),result[attr[0]]=attr[1]);return result},ParseStream=function(_Stream){function ParseStream(){var _this;return(_this=_Stream.call(this)||this).customParsers=[],_this.tagMappers=[],_this}inheritsLoose(ParseStream,_Stream);var _proto=ParseStream.prototype;return _proto.push=function(line){var match,event,_this2=this;0!==(line=line.trim()).length&&("#"===line[0]?this.tagMappers.reduce((function(acc,mapper){var mappedLine=mapper(line);return mappedLine===line?acc:acc.concat([mappedLine])}),[line]).forEach((function(newLine){for(var 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_this2.trigger("data",event);if(match=/^#EXT-X-ENDLIST/.exec(newLine))_this2.trigger("data",{type:"tag",tagType:"endlist"});else if(match=/^#EXT-X-DISCONTINUITY/.exec(newLine))_this2.trigger("data",{type:"tag",tagType:"discontinuity"});else{if(match=/^#EXT-X-PROGRAM-DATE-TIME:?(.*)$/.exec(newLine))return event={type:"tag",tagType:"program-date-time"},match[1]&&(event.dateTimeString=match[1],event.dateTimeObject=new Date(match[1])),void _this2.trigger("data",event);if(match=/^#EXT-X-KEY:?(.*)$/.exec(newLine))return 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_this2.trigger("data",event);if((match=/^#EXT-X-PART:(.*)$/.exec(newLine))&&match[1])return(event={type:"tag",tagType:"part"}).attributes=parseAttributes$1(match[1]),["DURATION"].forEach((function(key){event.attributes.hasOwnProperty(key)&&(event.attributes[key]=parseFloat(event.attributes[key]))})),["INDEPENDENT","GAP"].forEach((function(key){event.attributes.hasOwnProperty(key)&&(event.attributes[key]=/YES/.test(event.attributes[key]))})),event.attributes.hasOwnProperty("BYTERANGE")&&(event.attributes.byterange=parseByterange(event.attributes.BYTERANGE)),void _this2.trigger("data",event);if((match=/^#EXT-X-SERVER-CONTROL:(.*)$/.exec(newLine))&&match[1])return(event={type:"tag",tagType:"server-control"}).attributes=parseAttributes$1(match[1]),["CAN-SKIP-UNTIL","PART-HOLD-BACK","HOLD-BACK"].forEach((function(key){event.attributes.hasOwnProperty(key)&&(event.attributes[key]=parseFloat(event.attributes[key]))})),["CAN-SKIP-DATERANGES","CAN-BLOCK-RELOAD"].forEach((function(key){event.attributes.hasOwnProperty(key)&&(event.attributes[key]=/YES/.test(event.attributes[key]))})),void _this2.trigger("data",event);if((match=/^#EXT-X-PART-INF:(.*)$/.exec(newLine))&&match[1])return(event={type:"tag",tagType:"part-inf"}).attributes=parseAttributes$1(match[1]),["PART-TARGET"].forEach((function(key){event.attributes.hasOwnProperty(key)&&(event.attributes[key]=parseFloat(event.attributes[key]))})),void _this2.trigger("data",event);if((match=/^#EXT-X-PRELOAD-HINT:(.*)$/.exec(newLine))&&match[1])return(event={type:"tag",tagType:"preload-hint"}).attributes=parseAttributes$1(match[1]),["BYTERANGE-START","BYTERANGE-LENGTH"].forEach((function(key){if(event.attributes.hasOwnProperty(key)){event.attributes[key]=parseInt(event.attributes[key],10);var subkey="BYTERANGE-LENGTH"===key?"length":"offset";event.attributes.byterange=event.attributes.byterange||{},event.attributes.byterange[subkey]=event.attributes[key],delete event.attributes[key]}})),void _this2.trigger("data",event);if((match=/^#EXT-X-RENDITION-REPORT:(.*)$/.exec(newLine))&&match[1])return(event={type:"tag",tagType:"rendition-report"}).attributes=parseAttributes$1(match[1]),["LAST-MSN","LAST-PART"].forEach((function(key){event.attributes.hasOwnProperty(key)&&(event.attributes[key]=parseInt(event.attributes[key],10))})),void _this2.trigger("data",event);_this2.trigger("data",{type:"tag",data:newLine.slice(4)})}}}else _this2.trigger("data",{type:"comment",text:newLine.slice(1)})})):this.trigger("data",{type:"uri",uri:line}))},_proto.addParser=function(_ref){var _this3=this,expression=_ref.expression,customType=_ref.customType,dataParser=_ref.dataParser,segment=_ref.segment;"function"!=typeof dataParser&&(dataParser=function(line){return line}),this.customParsers.push((function(line){if(expression.exec(line))return _this3.trigger("data",{type:"custom",data:dataParser(line),customType:customType,segment:segment}),!0}))},_proto.addTagMapper=function(_ref2){var expression=_ref2.expression,map=_ref2.map;this.tagMappers.push((function(line){return expression.test(line)?map(line):line}))},ParseStream}(Stream),camelCaseKeys=function(attributes){var result={};return Object.keys(attributes).forEach((function(key){var str;result[(str=key,str.toLowerCase().replace(/-(\w)/g,(function(a){return a[1].toUpperCase()})))]=attributes[key]})),result},setHoldBack=function(manifest){var serverControl=manifest.serverControl,targetDuration=manifest.targetDuration,partTargetDuration=manifest.partTargetDuration;if(serverControl){var tag="#EXT-X-SERVER-CONTROL",hb="holdBack",phb="partHoldBack",minTargetDuration=targetDuration&&3*targetDuration,minPartDuration=partTargetDuration&&2*partTargetDuration;targetDuration&&!serverControl.hasOwnProperty(hb)&&(serverControl[hb]=minTargetDuration,this.trigger("info",{message:tag+" defaulting HOLD-BACK to targetDuration * 3 ("+minTargetDuration+")."})),minTargetDuration&&serverControl[hb]<minTargetDuration&&(this.trigger("warn",{message:tag+" clamping HOLD-BACK ("+serverControl[hb]+") to targetDuration * 3 ("+minTargetDuration+")"}),serverControl[hb]=minTargetDuration),partTargetDuration&&!serverControl.hasOwnProperty(phb)&&(serverControl[phb]=3*partTargetDuration,this.trigger("info",{message:tag+" defaulting PART-HOLD-BACK to partTargetDuration * 3 ("+serverControl[phb]+")."})),partTargetDuration&&serverControl[phb]<minPartDuration&&(this.trigger("warn",{message:tag+" clamping PART-HOLD-BACK ("+serverControl[phb]+") to partTargetDuration * 2 ("+minPartDuration+")."}),serverControl[phb]=minPartDuration)}},Parser=function(_Stream){function Parser(){var _this;(_this=_Stream.call(this)||this).lineStream=new LineStream,_this.parseStream=new ParseStream,_this.lineStream.pipe(_this.parseStream);var currentMap,_key,self=assertThisInitialized(_this),uris=[],currentUri={},hasParts=!1,noop=function(){},defaultMediaGroups={AUDIO:{},VIDEO:{},"CLOSED-CAPTIONS":{},SUBTITLES:{}},currentTimeline=0;_this.manifest={allowCache:!0,discontinuityStarts:[],segments:[]};var lastByterangeEnd=0,lastPartByterangeEnd=0;return _this.on("end",(function(){currentUri.uri||!currentUri.parts&&!currentUri.preloadHints||(!currentUri.map&&currentMap&&(currentUri.map=currentMap),!currentUri.key&&_key&&(currentUri.key=_key),currentUri.timeline||"number"!=typeof currentTimeline||(currentUri.timeline=currentTimeline),_this.manifest.preloadSegment=currentUri)})),_this.parseStream.on("data",(function(entry){var mediaGroup,rendition;({tag:function(){({version:function(){entry.version&&(this.manifest.version=entry.version)},"allow-cache":function(){this.manifest.allowCache=entry.allowed,"allowed"in entry||(this.trigger("info",{message:"defaulting allowCache to YES"}),this.manifest.allowCache=!0)},byterange:function(){var byterange={};"length"in entry&&(currentUri.byterange=byterange,byterange.length=entry.length,"offset"in entry||(entry.offset=lastByterangeEnd)),"offset"in entry&&(currentUri.byterange=byterange,byterange.offset=entry.offset),lastByterangeEnd=byterange.offset+byterange.length},endlist:function(){this.manifest.endList=!0},inf:function(){"mediaSequence"in this.manifest||(this.manifest.mediaSequence=0,this.trigger("info",{message:"defaulting media sequence to zero"})),"discontinuitySequence"in this.manifest||(this.manifest.discontinuitySequence=0,this.trigger("info",{message:"defaulting discontinuity sequence to zero"})),entry.duration>0&&(currentUri.duration=entry.duration),0===entry.duration&&(currentUri.duration=.01,this.trigger("info",{message:"updating zero segment duration to a small value"})),this.manifest.segments=uris},key:function(){if(entry.attributes)if("NONE"!==entry.attributes.METHOD)if(entry.attributes.URI){if("com.apple.streamingkeydelivery"===entry.attributes.KEYFORMAT)return this.manifest.contentProtection=this.manifest.contentProtection||{},void(this.manifest.contentProtection["com.apple.fps.1_0"]={attributes:entry.attributes});if("com.microsoft.playready"===entry.attributes.KEYFORMAT)return this.manifest.contentProtection=this.manifest.contentProtection||{},void(this.manifest.contentProtection["com.microsoft.playready"]={uri:entry.attributes.URI});if("urn:uuid:edef8ba9-79d6-4ace-a3c8-27dcd51d21ed"===entry.attributes.KEYFORMAT){return-1===["SAMPLE-AES","SAMPLE-AES-CTR","SAMPLE-AES-CENC"].indexOf(entry.attributes.METHOD)?void this.trigger("warn",{message:"invalid key method provided for Widevine"}):("SAMPLE-AES-CENC"===entry.attributes.METHOD&&this.trigger("warn",{message:"SAMPLE-AES-CENC is deprecated, please use SAMPLE-AES-CTR instead"}),"data:text/plain;base64,"!==entry.attributes.URI.substring(0,23)?void this.trigger("warn",{message:"invalid key URI provided for Widevine"}):entry.attributes.KEYID&&"0x"===entry.attributes.KEYID.substring(0,2)?(this.manifest.contentProtection=this.manifest.contentProtection||{},void(this.manifest.contentProtection["com.widevine.alpha"]={attributes:{schemeIdUri:entry.attributes.KEYFORMAT,keyId:entry.attributes.KEYID.substring(2)},pssh:decodeB64ToUint8Array$1(entry.attributes.URI.split(",")[1])})):void this.trigger("warn",{message:"invalid key ID provided for Widevine"}))}entry.attributes.METHOD||this.trigger("warn",{message:"defaulting key method to AES-128"}),_key={method:entry.attributes.METHOD||"AES-128",uri:entry.attributes.URI},void 0!==entry.attributes.IV&&(_key.iv=entry.attributes.IV)}else this.trigger("warn",{message:"ignoring key declaration without URI"});else _key=null;else this.trigger("warn",{message:"ignoring key declaration without attribute list"})},"media-sequence":function(){isFinite(entry.number)?this.manifest.mediaSequence=entry.number:this.trigger("warn",{message:"ignoring invalid media sequence: "+entry.number})},"discontinuity-sequence":function(){isFinite(entry.number)?(this.manifest.discontinuitySequence=entry.number,currentTimeline=entry.number):this.trigger("warn",{message:"ignoring invalid discontinuity sequence: "+entry.number})},"playlist-type":function(){/VOD|EVENT/.test(entry.playlistType)?this.manifest.playlistType=entry.playlistType:this.trigger("warn",{message:"ignoring unknown playlist type: "+entry.playlist})},map:function(){currentMap={},entry.uri&&(currentMap.uri=entry.uri),entry.byterange&&(currentMap.byterange=entry.byterange),_key&&(currentMap.key=_key)},"stream-inf":function(){this.manifest.playlists=uris,this.manifest.mediaGroups=this.manifest.mediaGroups||defaultMediaGroups,entry.attributes?(currentUri.attributes||(currentUri.attributes={}),_extends_1(currentUri.attributes,entry.attributes)):this.trigger("warn",{message:"ignoring empty stream-inf attributes"})},media:function(){if(this.manifest.mediaGroups=this.manifest.mediaGroups||defaultMediaGroups,entry.attributes&&entry.attributes.TYPE&&entry.attributes["GROUP-ID"]&&entry.attributes.NAME){var mediaGroupType=this.manifest.mediaGroups[entry.attributes.TYPE];mediaGroupType[entry.attributes["GROUP-ID"]]=mediaGroupType[entry.attributes["GROUP-ID"]]||{},mediaGroup=mediaGroupType[entry.attributes["GROUP-ID"]],(rendition={default:/yes/i.test(entry.attributes.DEFAULT)}).default?rendition.autoselect=!0:rendition.autoselect=/yes/i.test(entry.attributes.AUTOSELECT),entry.attributes.LANGUAGE&&(rendition.language=entry.attributes.LANGUAGE),entry.attributes.URI&&(rendition.uri=entry.attributes.URI),entry.attributes["INSTREAM-ID"]&&(rendition.instreamId=entry.attributes["INSTREAM-ID"]),entry.attributes.CHARACTERISTICS&&(rendition.characteristics=entry.attributes.CHARACTERISTICS),entry.attributes.FORCED&&(rendition.forced=/yes/i.test(entry.attributes.FORCED)),mediaGroup[entry.attributes.NAME]=rendition}else this.trigger("warn",{message:"ignoring incomplete or missing media group"})},discontinuity:function(){currentTimeline+=1,currentUri.discontinuity=!0,this.manifest.discontinuityStarts.push(uris.length)},"program-date-time":function(){void 0===this.manifest.dateTimeString&&(this.manifest.dateTimeString=entry.dateTimeString,this.manifest.dateTimeObject=entry.dateTimeObject),currentUri.dateTimeString=entry.dateTimeString,currentUri.dateTimeObject=entry.dateTimeObject},targetduration:function(){!isFinite(entry.duration)||entry.duration<0?this.trigger("warn",{message:"ignoring invalid target duration: "+entry.duration}):(this.manifest.targetDuration=entry.duration,setHoldBack.call(this,this.manifest))},start:function(){entry.attributes&&!isNaN(entry.attributes["TIME-OFFSET"])?this.manifest.start={timeOffset:entry.attributes["TIME-OFFSET"],precise:entry.attributes.PRECISE}:this.trigger("warn",{message:"ignoring start declaration without appropriate attribute list"})},"cue-out":function(){currentUri.cueOut=entry.data},"cue-out-cont":function(){currentUri.cueOutCont=entry.data},"cue-in":function(){currentUri.cueIn=entry.data},skip:function(){this.manifest.skip=camelCaseKeys(entry.attributes),this.warnOnMissingAttributes_("#EXT-X-SKIP",entry.attributes,["SKIPPED-SEGMENTS"])},part:function(){var _this2=this;hasParts=!0;var segmentIndex=this.manifest.segments.length,part=camelCaseKeys(entry.attributes);currentUri.parts=currentUri.parts||[],currentUri.parts.push(part),part.byterange&&(part.byterange.hasOwnProperty("offset")||(part.byterange.offset=lastPartByterangeEnd),lastPartByterangeEnd=part.byterange.offset+part.byterange.length);var partIndex=currentUri.parts.length-1;this.warnOnMissingAttributes_("#EXT-X-PART #"+partIndex+" for segment #"+segmentIndex,entry.attributes,["URI","DURATION"]),this.manifest.renditionReports&&this.manifest.renditionReports.forEach((function(r,i){r.hasOwnProperty("lastPart")||_this2.trigger("warn",{message:"#EXT-X-RENDITION-REPORT #"+i+" lacks required attribute(s): LAST-PART"})}))},"server-control":function(){var attrs=this.manifest.serverControl=camelCaseKeys(entry.attributes);attrs.hasOwnProperty("canBlockReload")||(attrs.canBlockReload=!1,this.trigger("info",{message:"#EXT-X-SERVER-CONTROL defaulting CAN-BLOCK-RELOAD to false"})),setHoldBack.call(this,this.manifest),attrs.canSkipDateranges&&!attrs.hasOwnProperty("canSkipUntil")&&this.trigger("warn",{message:"#EXT-X-SERVER-CONTROL lacks required attribute CAN-SKIP-UNTIL which is required when CAN-SKIP-DATERANGES is set"})},"preload-hint":function(){var segmentIndex=this.manifest.segments.length,hint=camelCaseKeys(entry.attributes),isPart=hint.type&&"PART"===hint.type;currentUri.preloadHints=currentUri.preloadHints||[],currentUri.preloadHints.push(hint),hint.byterange&&(hint.byterange.hasOwnProperty("offset")||(hint.byterange.offset=isPart?lastPartByterangeEnd:0,isPart&&(lastPartByterangeEnd=hint.byterange.offset+hint.byterange.length)));var index=currentUri.preloadHints.length-1;if(this.warnOnMissingAttributes_("#EXT-X-PRELOAD-HINT #"+index+" for segment #"+segmentIndex,entry.attributes,["TYPE","URI"]),hint.type)for(var i=0;i<currentUri.preloadHints.length-1;i++){var otherHint=currentUri.preloadHints[i];otherHint.type&&(otherHint.type===hint.type&&this.trigger("warn",{message:"#EXT-X-PRELOAD-HINT #"+index+" for segment #"+segmentIndex+" has the same TYPE "+hint.type+" as preload hint #"+i}))}},"rendition-report":function(){var report=camelCaseKeys(entry.attributes);this.manifest.renditionReports=this.manifest.renditionReports||[],this.manifest.renditionReports.push(report);var index=this.manifest.renditionReports.length-1,required=["LAST-MSN","URI"];hasParts&&required.push("LAST-PART"),this.warnOnMissingAttributes_("#EXT-X-RENDITION-REPORT #"+index,entry.attributes,required)},"part-inf":function(){this.manifest.partInf=camelCaseKeys(entry.attributes),this.warnOnMissingAttributes_("#EXT-X-PART-INF",entry.attributes,["PART-TARGET"]),this.manifest.partInf.partTarget&&(this.manifest.partTargetDuration=this.manifest.partInf.partTarget),setHoldBack.call(this,this.manifest)}}[entry.tagType]||noop).call(self)},uri:function(){currentUri.uri=entry.uri,uris.push(currentUri),this.manifest.targetDuration&&!("duration"in currentUri)&&(this.trigger("warn",{message:"defaulting segment duration to the target duration"}),currentUri.duration=this.manifest.targetDuration),_key&&(currentUri.key=_key),currentUri.timeline=currentTimeline,currentMap&&(currentUri.map=currentMap),lastPartByterangeEnd=0,currentUri={}},comment:function(){},custom:function(){entry.segment?(currentUri.custom=currentUri.custom||{},currentUri.custom[entry.customType]=entry.data):(this.manifest.custom=this.manifest.custom||{},this.manifest.custom[entry.customType]=entry.data)}})[entry.type].call(self)})),_this}inheritsLoose(Parser,_Stream);var _proto=Parser.prototype;return _proto.warnOnMissingAttributes_=function(identifier,attributes,required){var missing=[];required.forEach((function(key){attributes.hasOwnProperty(key)||missing.push(key)})),missing.length&&this.trigger("warn",{message:identifier+" lacks required attribute(s): "+missing.join(", ")})},_proto.push=function(chunk){this.lineStream.push(chunk)},_proto.end=function(){this.lineStream.push("\n"),this.trigger("end")},_proto.addParser=function(options){this.parseStream.addParser(options)},_proto.addTagMapper=function(options){this.parseStream.addTagMapper(options)},Parser}(Stream),regexs={mp4:/^(av0?1|avc0?[1234]|vp0?9|flac|opus|mp3|mp4a|mp4v|stpp.ttml.im1t)/,webm:/^(vp0?[89]|av0?1|opus|vorbis)/,ogg:/^(vp0?[89]|theora|flac|opus|vorbis)/,video:/^(av0?1|avc0?[1234]|vp0?[89]|hvc1|hev1|theora|mp4v)/,audio:/^(mp4a|flac|vorbis|opus|ac-[34]|ec-3|alac|mp3|speex|aac)/,text:/^(stpp.ttml.im1t)/,muxerVideo:/^(avc0?1)/,muxerAudio:/^(mp4a)/,muxerText:/a^/},mediaTypes=["video","audio","text"],upperMediaTypes=["Video","Audio","Text"],translateLegacyCodec=function(codec){return codec?codec.replace(/avc1\.(\d+)\.(\d+)/i,(function(orig,profile,avcLevel){return"avc1."+("00"+Number(profile).toString(16)).slice(-2)+"00"+("00"+Number(avcLevel).toString(16)).slice(-2)})):codec},parseCodecs=function(codecString){void 0===codecString&&(codecString="");var codecs=codecString.split(","),result=[];return codecs.forEach((function(codec){var codecType;codec=codec.trim(),mediaTypes.forEach((function(name){var match=regexs[name].exec(codec.toLowerCase());if(match&&!(match.length<=1)){codecType=name;var type=codec.substring(0,match[1].length),details=codec.replace(type,"");result.push({type:type,details:details,mediaType:name})}})),codecType||result.push({type:codec,details:"",mediaType:"unknown"})})),result},isAudioCodec=function(codec){return void 0===codec&&(codec=""),regexs.audio.test(codec.trim().toLowerCase())},getMimeForCodec=function(codecString){if(codecString&&"string"==typeof codecString){var codec,codecs=codecString.toLowerCase().split(",").map((function(c){return translateLegacyCodec(c.trim())})),type="video";1===codecs.length&&isAudioCodec(codecs[0])?type="audio":1===codecs.length&&(void 0===(codec=codecs[0])&&(codec=""),regexs.text.test(codec.trim().toLowerCase()))&&(type="application");var container="mp4";return codecs.every((function(c){return regexs.mp4.test(c)}))?container="mp4":codecs.every((function(c){return regexs.webm.test(c)}))?container="webm":codecs.every((function(c){return regexs.ogg.test(c)}))&&(container="ogg"),type+"/"+container+';codecs="'+codecString+'"'}},browserSupportsCodec=function(codecString){return void 0===codecString&&(codecString=""),window.MediaSource&&window.MediaSource.isTypeSupported&&window.MediaSource.isTypeSupported(getMimeForCodec(codecString))||!1},muxerSupportsCodec=function(codecString){return void 0===codecString&&(codecString=""),codecString.toLowerCase().split(",").every((function(codec){codec=codec.trim();for(var i=0;i<upperMediaTypes.length;i++){if(regexs["muxer"+upperMediaTypes[i]].test(codec))return!0}return!1}))},MPEGURL_REGEX=/^(audio|video|application)\/(x-|vnd\.apple\.)?mpegurl/i,DASH_REGEX=/^application\/dash\+xml/i,simpleTypeFromSourceType=function(type){return MPEGURL_REGEX.test(type)?"hls":DASH_REGEX.test(type)?"dash":"application/vnd.videojs.vhs+json"===type?"vhs-json":null},isArrayBufferView=function(obj){return"function"===ArrayBuffer.isView?ArrayBuffer.isView(obj):obj&&obj.buffer instanceof ArrayBuffer},toUint8=function(bytes){return bytes instanceof Uint8Array?bytes:(Array.isArray(bytes)||isArrayBufferView(bytes)||bytes instanceof ArrayBuffer||(bytes="number"!=typeof bytes||"number"==typeof bytes&&bytes!=bytes?0:[bytes]),new Uint8Array(bytes&&bytes.buffer||bytes,bytes&&bytes.byteOffset||0,bytes&&bytes.byteLength||0))},BigInt=window.BigInt||Number,BYTE_TABLE=[BigInt("0x1"),BigInt("0x100"),BigInt("0x10000"),BigInt("0x1000000"),BigInt("0x100000000"),BigInt("0x10000000000"),BigInt("0x1000000000000"),BigInt("0x100000000000000"),BigInt("0x10000000000000000")],bytesToNumber=function(bytes,_temp){var _ref=void 0===_temp?{}:_temp,_ref$signed=_ref.signed,signed=void 0!==_ref$signed&&_ref$signed,_ref$le=_ref.le,le=void 0!==_ref$le&&_ref$le;bytes=toUint8(bytes);var fn=le?"reduce":"reduceRight",number=(bytes[fn]?bytes[fn]:Array.prototype[fn]).call(bytes,(function(total,_byte,i){var exponent=le?i:Math.abs(i+1-bytes.length);return total+BigInt(_byte)*BYTE_TABLE[exponent]}),BigInt(0));if(signed){var max=BYTE_TABLE[bytes.length]/BigInt(2)-BigInt(1);(number=BigInt(number))>max&&(number-=max,number-=max,number-=BigInt(2))}return Number(number)},numberToBytes=function(number,_temp2){var _ref2$le=(void 0===_temp2?{}:_temp2).le,le=void 0!==_ref2$le&&_ref2$le;("bigint"!=typeof number&&"number"!=typeof number||"number"==typeof number&&number!=number)&&(number=0),number=BigInt(number);for(var x,byteCount=(x=number,Math.ceil(function(x){return x.toString(2).length}(x)/8)),bytes=new Uint8Array(new ArrayBuffer(byteCount)),i=0;i<byteCount;i++){var byteIndex=le?i:Math.abs(i+1-bytes.length);bytes[byteIndex]=Number(number/BYTE_TABLE[i]&BigInt(255)),number<0&&(bytes[byteIndex]=Math.abs(~bytes[byteIndex]),bytes[byteIndex]-=0===i?1:2)}return bytes},stringToBytes=function(string,stringIsBytes){if("string"!=typeof string&&string&&"function"==typeof string.toString&&(string=string.toString()),"string"!=typeof string)return new Uint8Array;stringIsBytes||(string=unescape(encodeURIComponent(string)));for(var view=new Uint8Array(string.length),i=0;i<string.length;i++)view[i]=string.charCodeAt(i);return view},bytesMatch=function(a,b,_temp3){var _ref3=void 0===_temp3?{}:_temp3,_ref3$offset=_ref3.offset,offset=void 0===_ref3$offset?0:_ref3$offset,_ref3$mask=_ref3.mask,mask=void 0===_ref3$mask?[]:_ref3$mask;a=toUint8(a);var fn=(b=toUint8(b)).every?b.every:Array.prototype.every;return b.length&&a.length-offset>=b.length&&fn.call(b,(function(bByte,i){return bByte===(mask[i]?mask[i]&a[offset+i]:a[offset+i])}))},resolveUrl$1=function(baseUrl,relativeUrl){if(/^[a-z]+:/i.test(relativeUrl))return relativeUrl;/^data:/.test(baseUrl)&&(baseUrl=window.location&&window.location.href||"");var nativeURL="function"==typeof window.URL,protocolLess=/^\/\//.test(baseUrl),removeLocation=!window.location&&!/\/\//i.test(baseUrl);if(nativeURL?baseUrl=new window.URL(baseUrl,window.location||"http://example.com"):/\/\//i.test(baseUrl)||(baseUrl=urlToolkit.buildAbsoluteURL(window.location&&window.location.href||"",baseUrl)),nativeURL){var newUrl=new URL(relativeUrl,baseUrl);return removeLocation?newUrl.href.slice("http://example.com".length):protocolLess?newUrl.href.slice(newUrl.protocol.length):newUrl.href}return urlToolkit.buildAbsoluteURL(baseUrl,relativeUrl)};function decodeB64ToUint8Array(b64Text){for(var s,decodedString=(s=b64Text,window.atob?window.atob(s):Buffer.from(s,"base64").toString("binary")),array=new Uint8Array(decodedString.length),i=0;i<decodedString.length;i++)array[i]=decodedString.charCodeAt(i);return array}function freeze(object,oc){return void 0===oc&&(oc=Object),oc&&"function"==typeof oc.freeze?oc.freeze(object):object}var MIME_TYPE=freeze({HTML:"text/html",isHTML:function(value){return value===MIME_TYPE.HTML},XML_APPLICATION:"application/xml",XML_TEXT:"text/xml",XML_XHTML_APPLICATION:"application/xhtml+xml",XML_SVG_IMAGE:"image/svg+xml"}),NAMESPACE$3=freeze({HTML:"http://www.w3.org/1999/xhtml",isHTML:function(uri){return uri===NAMESPACE$3.HTML},SVG:"http://www.w3.org/2000/svg",XML:"http://www.w3.org/XML/1998/namespace",XMLNS:"http://www.w3.org/2000/xmlns/"}),conventions={freeze:freeze,MIME_TYPE:MIME_TYPE,NAMESPACE:NAMESPACE$3},NAMESPACE$2=conventions.NAMESPACE;function notEmptyString(input){return""!==input}function orderedSetReducer(current,element){return current.hasOwnProperty(element)||(current[element]=!0),current}function toOrderedSet(input){if(!input)return[];var list=function(input){return input?input.split(/[\t\n\f\r ]+/).filter(notEmptyString):[]}(input);return Object.keys(list.reduce(orderedSetReducer,{}))}function copy(src,dest){for(var p in src)dest[p]=src[p]}function _extends(Class,Super){var pt=Class.prototype;if(!(pt instanceof Super)){var t=function(){};t.prototype=Super.prototype,copy(pt,t=new t),Class.prototype=pt=t}pt.constructor!=Class&&("function"!=typeof Class&&console.error("unknown Class:"+Class),pt.constructor=Class)}var NodeType={},ELEMENT_NODE=NodeType.ELEMENT_NODE=1,ATTRIBUTE_NODE=NodeType.ATTRIBUTE_NODE=2,TEXT_NODE=NodeType.TEXT_NODE=3,CDATA_SECTION_NODE=NodeType.CDATA_SECTION_NODE=4,ENTITY_REFERENCE_NODE=NodeType.ENTITY_REFERENCE_NODE=5,ENTITY_NODE=NodeType.ENTITY_NODE=6,PROCESSING_INSTRUCTION_NODE=NodeType.PROCESSING_INSTRUCTION_NODE=7,COMMENT_NODE=NodeType.COMMENT_NODE=8,DOCUMENT_NODE=NodeType.DOCUMENT_NODE=9,DOCUMENT_TYPE_NODE=NodeType.DOCUMENT_TYPE_NODE=10,DOCUMENT_FRAGMENT_NODE=NodeType.DOCUMENT_FRAGMENT_NODE=11,NOTATION_NODE=NodeType.NOTATION_NODE=12,ExceptionCode={},ExceptionMessage={};ExceptionCode.INDEX_SIZE_ERR=(ExceptionMessage[1]="Index size error",1),ExceptionCode.DOMSTRING_SIZE_ERR=(ExceptionMessage[2]="DOMString size error",2);var HIERARCHY_REQUEST_ERR=ExceptionCode.HIERARCHY_REQUEST_ERR=(ExceptionMessage[3]="Hierarchy request error",3);ExceptionCode.WRONG_DOCUMENT_ERR=(ExceptionMessage[4]="Wrong document",4),ExceptionCode.INVALID_CHARACTER_ERR=(ExceptionMessage[5]="Invalid character",5),ExceptionCode.NO_DATA_ALLOWED_ERR=(ExceptionMessage[6]="No data allowed",6),ExceptionCode.NO_MODIFICATION_ALLOWED_ERR=(ExceptionMessage[7]="No modification allowed",7);var NOT_FOUND_ERR=ExceptionCode.NOT_FOUND_ERR=(ExceptionMessage[8]="Not found",8);ExceptionCode.NOT_SUPPORTED_ERR=(ExceptionMessage[9]="Not supported",9);var INUSE_ATTRIBUTE_ERR=ExceptionCode.INUSE_ATTRIBUTE_ERR=(ExceptionMessage[10]="Attribute in use",10);function DOMException(code,message){if(message instanceof Error)var error=message;else error=this,Error.call(this,ExceptionMessage[code]),this.message=ExceptionMessage[code],Error.captureStackTrace&&Error.captureStackTrace(this,DOMException);return error.code=code,message&&(this.message=this.message+": "+message),error}function NodeList(){}function LiveNodeList(node,refresh){this._node=node,this._refresh=refresh,_updateLiveList(this)}function _updateLiveList(list){var inc=list._node._inc||list._node.ownerDocument._inc;if(list._inc!=inc){var ls=list._refresh(list._node);__set__(list,"length",ls.length),copy(ls,list),list._inc=inc}}function NamedNodeMap(){}function _findNodeIndex(list,node){for(var i=list.length;i--;)if(list[i]===node)return i}function _addNamedNode(el,list,newAttr,oldAttr){if(oldAttr?list[_findNodeIndex(list,oldAttr)]=newAttr:list[list.length++]=newAttr,el){newAttr.ownerElement=el;var doc=el.ownerDocument;doc&&(oldAttr&&_onRemoveAttribute(doc,el,oldAttr),function(doc,el,newAttr){doc&&doc._inc++,newAttr.namespaceURI===NAMESPACE$2.XMLNS&&(el._nsMap[newAttr.prefix?newAttr.localName:""]=newAttr.value)}(doc,el,newAttr))}}function _removeNamedNode(el,list,attr){var i=_findNodeIndex(list,attr);if(!(i>=0))throw DOMException(NOT_FOUND_ERR,new Error(el.tagName+"@"+attr));for(var lastIndex=list.length-1;i<lastIndex;)list[i]=list[++i];if(list.length=lastIndex,el){var doc=el.ownerDocument;doc&&(_onRemoveAttribute(doc,el,attr),attr.ownerElement=null)}}function DOMImplementation$1(){}function Node(){}function 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_insertBefore(parentNode,newChild,nextChild){var cp=newChild.parentNode;if(cp&&cp.removeChild(newChild),newChild.nodeType===DOCUMENT_FRAGMENT_NODE){var newFirst=newChild.firstChild;if(null==newFirst)return newChild;var newLast=newChild.lastChild}else newFirst=newLast=newChild;var pre=nextChild?nextChild.previousSibling:parentNode.lastChild;newFirst.previousSibling=pre,newLast.nextSibling=nextChild,pre?pre.nextSibling=newFirst:parentNode.firstChild=newFirst,null==nextChild?parentNode.lastChild=newLast:nextChild.previousSibling=newLast;do{newFirst.parentNode=parentNode}while(newFirst!==newLast&&(newFirst=newFirst.nextSibling));return _onUpdateChild(parentNode.ownerDocument||parentNode,parentNode),newChild.nodeType==DOCUMENT_FRAGMENT_NODE&&(newChild.firstChild=newChild.lastChild=null),newChild}function Element(){this._nsMap={}}function Attr(){}function CharacterData(){}function Text(){}function Comment(){}function CDATASection(){}function DocumentType(){}function Notation(){}function Entity(){}function EntityReference(){}function DocumentFragment(){}function ProcessingInstruction(){}function XMLSerializer$1(){}function nodeSerializeToString(isHtml,nodeFilter){var buf=[],refNode=9==this.nodeType&&this.documentElement||this,prefix=refNode.prefix,uri=refNode.namespaceURI;if(uri&&null==prefix&&null==(prefix=refNode.lookupPrefix(uri)))var visibleNamespaces=[{namespace:uri,prefix:null}];return serializeToString(this,buf,isHtml,nodeFilter,visibleNamespaces),buf.join("")}function needNamespaceDefine(node,isHTML,visibleNamespaces){var prefix=node.prefix||"",uri=node.namespaceURI;if(!uri)return!1;if("xml"===prefix&&uri===NAMESPACE$2.XML||uri===NAMESPACE$2.XMLNS)return!1;for(var i=visibleNamespaces.length;i--;){var ns=visibleNamespaces[i];if(ns.prefix===prefix)return ns.namespace!==uri}return!0}function addSerializedAttribute(buf,qualifiedName,value){buf.push(" ",qualifiedName,'="',value.replace(/[<&"]/g,_xmlEncoder),'"')}function serializeToString(node,buf,isHTML,nodeFilter,visibleNamespaces){if(visibleNamespaces||(visibleNamespaces=[]),nodeFilter){if(!(node=nodeFilter(node)))return;if("string"==typeof node)return void buf.push(node)}switch(node.nodeType){case ELEMENT_NODE:var attrs=node.attributes,len=attrs.length,child=node.firstChild,nodeName=node.tagName,prefixedNodeName=nodeName;if(!(isHTML=NAMESPACE$2.isHTML(node.namespaceURI)||isHTML)&&!node.prefix&&node.namespaceURI){for(var defaultNS,ai=0;ai<attrs.length;ai++)if("xmlns"===attrs.item(ai).name){defaultNS=attrs.item(ai).value;break}if(!defaultNS)for(var nsi=visibleNamespaces.length-1;nsi>=0;nsi--){if(""===(namespace=visibleNamespaces[nsi]).prefix&&namespace.namespace===node.namespaceURI){defaultNS=namespace.namespace;break}}if(defaultNS!==node.namespaceURI)for(nsi=visibleNamespaces.length-1;nsi>=0;nsi--){var namespace;if((namespace=visibleNamespaces[nsi]).namespace===node.namespaceURI){namespace.prefix&&(prefixedNodeName=namespace.prefix+":"+nodeName);break}}}buf.push("<",prefixedNodeName);for(var i=0;i<len;i++){"xmlns"==(attr=attrs.item(i)).prefix?visibleNamespaces.push({prefix:attr.localName,namespace:attr.value}):"xmlns"==attr.nodeName&&visibleNamespaces.push({prefix:"",namespace:attr.value})}for(i=0;i<len;i++){var attr,prefix,uri;if(needNamespaceDefine(attr=attrs.item(i),0,visibleNamespaces))addSerializedAttribute(buf,(prefix=attr.prefix||"")?"xmlns:"+prefix:"xmlns",uri=attr.namespaceURI),visibleNamespaces.push({prefix:prefix,namespace:uri});serializeToString(attr,buf,isHTML,nodeFilter,visibleNamespaces)}if(nodeName===prefixedNodeName&&needNamespaceDefine(node,0,visibleNamespaces))addSerializedAttribute(buf,(prefix=node.prefix||"")?"xmlns:"+prefix:"xmlns",uri=node.namespaceURI),visibleNamespaces.push({prefix:prefix,namespace:uri});if(child||isHTML&&!/^(?:meta|link|img|br|hr|input)$/i.test(nodeName)){if(buf.push(">"),isHTML&&/^script$/i.test(nodeName))for(;child;)child.data?buf.push(child.data):serializeToString(child,buf,isHTML,nodeFilter,visibleNamespaces.slice()),child=child.nextSibling;else for(;child;)serializeToString(child,buf,isHTML,nodeFilter,visibleNamespaces.slice()),child=child.nextSibling;buf.push("</",prefixedNodeName,">")}else buf.push("/>");return;case DOCUMENT_NODE:case DOCUMENT_FRAGMENT_NODE:for(child=node.firstChild;child;)serializeToString(child,buf,isHTML,nodeFilter,visibleNamespaces.slice()),child=child.nextSibling;return;case ATTRIBUTE_NODE:return addSerializedAttribute(buf,node.name,node.value);case TEXT_NODE:return buf.push(node.data.replace(/[<&]/g,_xmlEncoder).replace(/]]>/g,"]]&gt;"));case CDATA_SECTION_NODE:return buf.push("<![CDATA[",node.data,"]]>");case COMMENT_NODE:return buf.push("\x3c!--",node.data,"--\x3e");case DOCUMENT_TYPE_NODE:var pubid=node.publicId,sysid=node.systemId;if(buf.push("<!DOCTYPE ",node.name),pubid)buf.push(" PUBLIC ",pubid),sysid&&"."!=sysid&&buf.push(" ",sysid),buf.push(">");else if(sysid&&"."!=sysid)buf.push(" SYSTEM ",sysid,">");else{var sub=node.internalSubset;sub&&buf.push(" [",sub,"]"),buf.push(">")}return;case PROCESSING_INSTRUCTION_NODE:return buf.push("<?",node.target," ",node.data,"?>");case ENTITY_REFERENCE_NODE:return buf.push("&",node.nodeName,";");default:buf.push("??",node.nodeName)}}function _importNode(doc,node,deep){var node2;switch(node.nodeType){case ELEMENT_NODE:(node2=node.cloneNode(!1)).ownerDocument=doc;case DOCUMENT_FRAGMENT_NODE:break;case ATTRIBUTE_NODE:deep=!0}if(node2||(node2=node.cloneNode(!1)),node2.ownerDocument=doc,node2.parentNode=null,deep)for(var child=node.firstChild;child;)node2.appendChild(_importNode(doc,child,deep)),child=child.nextSibling;return node2}function _cloneNode(doc,node,deep){var node2=new node.constructor;for(var n in node){var v=node[n];"object"!=typeof v&&v!=node2[n]&&(node2[n]=v)}switch(node.childNodes&&(node2.childNodes=new NodeList),node2.ownerDocument=doc,node2.nodeType){case ELEMENT_NODE:var attrs=node.attributes,attrs2=node2.attributes=new NamedNodeMap,len=attrs.length;attrs2._ownerElement=node2;for(var i=0;i<len;i++)node2.setAttributeNode(_cloneNode(doc,attrs.item(i),!0));break;case ATTRIBUTE_NODE:deep=!0}if(deep)for(var child=node.firstChild;child;)node2.appendChild(_cloneNode(doc,child,deep)),child=child.nextSibling;return node2}function __set__(object,key,value){object[key]=value}ExceptionCode.INVALID_STATE_ERR=(ExceptionMessage[11]="Invalid state",11),ExceptionCode.SYNTAX_ERR=(ExceptionMessage[12]="Syntax error",12),ExceptionCode.INVALID_MODIFICATION_ERR=(ExceptionMessage[13]="Invalid modification",13),ExceptionCode.NAMESPACE_ERR=(ExceptionMessage[14]="Invalid namespace",14),ExceptionCode.INVALID_ACCESS_ERR=(ExceptionMessage[15]="Invalid access",15),DOMException.prototype=Error.prototype,copy(ExceptionCode,DOMException),NodeList.prototype={length:0,item:function(index){return this[index]||null},toString:function(isHTML,nodeFilter){for(var buf=[],i=0;i<this.length;i++)serializeToString(this[i],buf,isHTML,nodeFilter);return buf.join("")}},LiveNodeList.prototype.item=function(i){return _updateLiveList(this),this[i]},_extends(LiveNodeList,NodeList),NamedNodeMap.prototype={length:0,item:NodeList.prototype.item,getNamedItem:function(key){for(var i=this.length;i--;){var attr=this[i];if(attr.nodeName==key)return attr}},setNamedItem:function(attr){var el=attr.ownerElement;if(el&&el!=this._ownerElement)throw new DOMException(INUSE_ATTRIBUTE_ERR);var oldAttr=this.getNamedItem(attr.nodeName);return _addNamedNode(this._ownerElement,this,attr,oldAttr),oldAttr},setNamedItemNS:function(attr){var oldAttr,el=attr.ownerElement;if(el&&el!=this._ownerElement)throw new DOMException(INUSE_ATTRIBUTE_ERR);return oldAttr=this.getNamedItemNS(attr.namespaceURI,attr.localName),_addNamedNode(this._ownerElement,this,attr,oldAttr),oldAttr},removeNamedItem:function(key){var attr=this.getNamedItem(key);return _removeNamedNode(this._ownerElement,this,attr),attr},removeNamedItemNS:function(namespaceURI,localName){var attr=this.getNamedItemNS(namespaceURI,localName);return _removeNamedNode(this._ownerElement,this,attr),attr},getNamedItemNS:function(namespaceURI,localName){for(var i=this.length;i--;){var node=this[i];if(node.localName==localName&&node.namespaceURI==namespaceURI)return node}return null}},DOMImplementation$1.prototype={hasFeature:function(feature,version){return!0},createDocument:function(namespaceURI,qualifiedName,doctype){var doc=new Document;if(doc.implementation=this,doc.childNodes=new NodeList,doc.doctype=doctype||null,doctype&&doc.appendChild(doctype),qualifiedName){var root=doc.createElementNS(namespaceURI,qualifiedName);doc.appendChild(root)}return doc},createDocumentType:function(qualifiedName,publicId,systemId){var node=new DocumentType;return node.name=qualifiedName,node.nodeName=qualifiedName,node.publicId=publicId||"",node.systemId=systemId||"",node}},Node.prototype={firstChild:null,lastChild:null,previousSibling:null,nextSibling:null,attributes:null,parentNode:null,childNodes:null,ownerDocument:null,nodeValue:null,namespaceURI:null,prefix:null,localName:null,insertBefore:function(newChild,refChild){return _insertBefore(this,newChild,refChild)},replaceChild:function(newChild,oldChild){this.insertBefore(newChild,oldChild),oldChild&&this.removeChild(oldChild)},removeChild:function(oldChild){return _removeChild(this,oldChild)},appendChild:function(newChild){return this.insertBefore(newChild,null)},hasChildNodes:function(){return null!=this.firstChild},cloneNode:function(deep){return _cloneNode(this.ownerDocument||this,this,deep)},normalize:function(){for(var child=this.firstChild;child;){var next=child.nextSibling;next&&next.nodeType==TEXT_NODE&&child.nodeType==TEXT_NODE?(this.removeChild(next),child.appendData(next.data)):(child.normalize(),child=next)}},isSupported:function(feature,version){return this.ownerDocument.implementation.hasFeature(feature,version)},hasAttributes:function(){return this.attributes.length>0},lookupPrefix:function(namespaceURI){for(var el=this;el;){var map=el._nsMap;if(map)for(var n in map)if(map[n]==namespaceURI)return n;el=el.nodeType==ATTRIBUTE_NODE?el.ownerDocument:el.parentNode}return null},lookupNamespaceURI:function(prefix){for(var el=this;el;){var map=el._nsMap;if(map&&prefix in map)return map[prefix];el=el.nodeType==ATTRIBUTE_NODE?el.ownerDocument:el.parentNode}return null},isDefaultNamespace:function(namespaceURI){return null==this.lookupPrefix(namespaceURI)}},copy(NodeType,Node),copy(NodeType,Node.prototype),Document.prototype={nodeName:"#document",nodeType:DOCUMENT_NODE,doctype:null,documentElement:null,_inc:1,insertBefore:function(newChild,refChild){if(newChild.nodeType==DOCUMENT_FRAGMENT_NODE){for(var child=newChild.firstChild;child;){var next=child.nextSibling;this.insertBefore(child,refChild),child=next}return newChild}return null==this.documentElement&&newChild.nodeType==ELEMENT_NODE&&(this.documentElement=newChild),_insertBefore(this,newChild,refChild),newChild.ownerDocument=this,newChild},removeChild:function(oldChild){return this.documentElement==oldChild&&(this.documentElement=null),_removeChild(this,oldChild)},importNode:function(importedNode,deep){return _importNode(this,importedNode,deep)},getElementById:function(id){var rtv=null;return _visitNode(this.documentElement,(function(node){if(node.nodeType==ELEMENT_NODE&&node.getAttribute("id")==id)return rtv=node,!0})),rtv},getElementsByClassName:function(classNames){var classNamesSet=toOrderedSet(classNames);return new LiveNodeList(this,(function(base){var ls=[];return classNamesSet.length>0&&_visitNode(base.documentElement,(function(node){if(node!==base&&node.nodeType===ELEMENT_NODE){var nodeClassNames=node.getAttribute("class");if(nodeClassNames){var matches=classNames===nodeClassNames;if(!matches){var nodeClassNamesSet=toOrderedSet(nodeClassNames);matches=classNamesSet.every((list=nodeClassNamesSet,function(element){return list&&-1!==list.indexOf(element)}))}matches&&ls.push(node)}}var list})),ls}))},createElement:function(tagName){var node=new Element;return node.ownerDocument=this,node.nodeName=tagName,node.tagName=tagName,node.localName=tagName,node.childNodes=new NodeList,(node.attributes=new NamedNodeMap)._ownerElement=node,node},createDocumentFragment:function(){var node=new DocumentFragment;return node.ownerDocument=this,node.childNodes=new NodeList,node},createTextNode:function(data){var node=new Text;return node.ownerDocument=this,node.appendData(data),node},createComment:function(data){var node=new Comment;return node.ownerDocument=this,node.appendData(data),node},createCDATASection:function(data){var node=new CDATASection;return node.ownerDocument=this,node.appendData(data),node},createProcessingInstruction:function(target,data){var node=new ProcessingInstruction;return node.ownerDocument=this,node.tagName=node.target=target,node.nodeValue=node.data=data,node},createAttribute:function(name){var node=new Attr;return node.ownerDocument=this,node.name=name,node.nodeName=name,node.localName=name,node.specified=!0,node},createEntityReference:function(name){var node=new EntityReference;return node.ownerDocument=this,node.nodeName=name,node},createElementNS:function(namespaceURI,qualifiedName){var node=new Element,pl=qualifiedName.split(":"),attrs=node.attributes=new NamedNodeMap;return node.childNodes=new NodeList,node.ownerDocument=this,node.nodeName=qualifiedName,node.tagName=qualifiedName,node.namespaceURI=namespaceURI,2==pl.length?(node.prefix=pl[0],node.localName=pl[1]):node.localName=qualifiedName,attrs._ownerElement=node,node},createAttributeNS:function(namespaceURI,qualifiedName){var node=new Attr,pl=qualifiedName.split(":");return node.ownerDocument=this,node.nodeName=qualifiedName,node.name=qualifiedName,node.namespaceURI=namespaceURI,node.specified=!0,2==pl.length?(node.prefix=pl[0],node.localName=pl[1]):node.localName=qualifiedName,node}},_extends(Document,Node),Element.prototype={nodeType:ELEMENT_NODE,hasAttribute:function(name){return null!=this.getAttributeNode(name)},getAttribute:function(name){var attr=this.getAttributeNode(name);return attr&&attr.value||""},getAttributeNode:function(name){return this.attributes.getNamedItem(name)},setAttribute:function(name,value){var attr=this.ownerDocument.createAttribute(name);attr.value=attr.nodeValue=""+value,this.setAttributeNode(attr)},removeAttribute:function(name){var attr=this.getAttributeNode(name);attr&&this.removeAttributeNode(attr)},appendChild:function(newChild){return newChild.nodeType===DOCUMENT_FRAGMENT_NODE?this.insertBefore(newChild,null):function(parentNode,newChild){var cp=newChild.parentNode;if(cp){var pre=parentNode.lastChild;cp.removeChild(newChild),pre=parentNode.lastChild}return pre=parentNode.lastChild,newChild.parentNode=parentNode,newChild.previousSibling=pre,newChild.nextSibling=null,pre?pre.nextSibling=newChild:parentNode.firstChild=newChild,parentNode.lastChild=newChild,_onUpdateChild(parentNode.ownerDocument,parentNode,newChild),newChild}(this,newChild)},setAttributeNode:function(newAttr){return this.attributes.setNamedItem(newAttr)},setAttributeNodeNS:function(newAttr){return this.attributes.setNamedItemNS(newAttr)},removeAttributeNode:function(oldAttr){return this.attributes.removeNamedItem(oldAttr.nodeName)},removeAttributeNS:function(namespaceURI,localName){var old=this.getAttributeNodeNS(namespaceURI,localName);old&&this.removeAttributeNode(old)},hasAttributeNS:function(namespaceURI,localName){return null!=this.getAttributeNodeNS(namespaceURI,localName)},getAttributeNS:function(namespaceURI,localName){var attr=this.getAttributeNodeNS(namespaceURI,localName);return attr&&attr.value||""},setAttributeNS:function(namespaceURI,qualifiedName,value){var attr=this.ownerDocument.createAttributeNS(namespaceURI,qualifiedName);attr.value=attr.nodeValue=""+value,this.setAttributeNode(attr)},getAttributeNodeNS:function(namespaceURI,localName){return this.attributes.getNamedItemNS(namespaceURI,localName)},getElementsByTagName:function(tagName){return new LiveNodeList(this,(function(base){var ls=[];return _visitNode(base,(function(node){node===base||node.nodeType!=ELEMENT_NODE||"*"!==tagName&&node.tagName!=tagName||ls.push(node)})),ls}))},getElementsByTagNameNS:function(namespaceURI,localName){return new LiveNodeList(this,(function(base){var ls=[];return _visitNode(base,(function(node){node===base||node.nodeType!==ELEMENT_NODE||"*"!==namespaceURI&&node.namespaceURI!==namespaceURI||"*"!==localName&&node.localName!=localName||ls.push(node)})),ls}))}},Document.prototype.getElementsByTagName=Element.prototype.getElementsByTagName,Document.prototype.getElementsByTagNameNS=Element.prototype.getElementsByTagNameNS,_extends(Element,Node),Attr.prototype.nodeType=ATTRIBUTE_NODE,_extends(Attr,Node),CharacterData.prototype={data:"",substringData:function(offset,count){return this.data.substring(offset,offset+count)},appendData:function(text){text=this.data+text,this.nodeValue=this.data=text,this.length=text.length},insertData:function(offset,text){this.replaceData(offset,0,text)},appendChild:function(newChild){throw new Error(ExceptionMessage[HIERARCHY_REQUEST_ERR])},deleteData:function(offset,count){this.replaceData(offset,count,"")},replaceData:function(offset,count,text){text=this.data.substring(0,offset)+text+this.data.substring(offset+count),this.nodeValue=this.data=text,this.length=text.length}},_extends(CharacterData,Node),Text.prototype={nodeName:"#text",nodeType:TEXT_NODE,splitText:function(offset){var text=this.data,newText=text.substring(offset);text=text.substring(0,offset),this.data=this.nodeValue=text,this.length=text.length;var newNode=this.ownerDocument.createTextNode(newText);return this.parentNode&&this.parentNode.insertBefore(newNode,this.nextSibling),newNode}},_extends(Text,CharacterData),Comment.prototype={nodeName:"#comment",nodeType:COMMENT_NODE},_extends(Comment,CharacterData),CDATASection.prototype={nodeName:"#cdata-section",nodeType:CDATA_SECTION_NODE},_extends(CDATASection,CharacterData),DocumentType.prototype.nodeType=DOCUMENT_TYPE_NODE,_extends(DocumentType,Node),Notation.prototype.nodeType=NOTATION_NODE,_extends(Notation,Node),Entity.prototype.nodeType=ENTITY_NODE,_extends(Entity,Node),EntityReference.prototype.nodeType=ENTITY_REFERENCE_NODE,_extends(EntityReference,Node),DocumentFragment.prototype.nodeName="#document-fragment",DocumentFragment.prototype.nodeType=DOCUMENT_FRAGMENT_NODE,_extends(DocumentFragment,Node),ProcessingInstruction.prototype.nodeType=PROCESSING_INSTRUCTION_NODE,_extends(ProcessingInstruction,Node),XMLSerializer$1.prototype.serializeToString=function(node,isHtml,nodeFilter){return nodeSerializeToString.call(node,isHtml,nodeFilter)},Node.prototype.toString=nodeSerializeToString;try{if(Object.defineProperty){var getTextContent=function getTextContent(node){switch(node.nodeType){case ELEMENT_NODE:case DOCUMENT_FRAGMENT_NODE:var buf=[];for(node=node.firstChild;node;)7!==node.nodeType&&8!==node.nodeType&&buf.push(getTextContent(node)),node=node.nextSibling;return buf.join("");default:return node.nodeValue}};Object.defineProperty(LiveNodeList.prototype,"length",{get:function(){return _updateLiveList(this),this.$$length}}),Object.defineProperty(Node.prototype,"textContent",{get:function(){return getTextContent(this)},set:function(data){switch(this.nodeType){case ELEMENT_NODE:case DOCUMENT_FRAGMENT_NODE:for(;this.firstChild;)this.removeChild(this.firstChild);(data||String(data))&&this.appendChild(this.ownerDocument.createTextNode(data));break;default:this.data=data,this.value=data,this.nodeValue=data}}}),__set__=function(object,key,value){object["$$"+key]=value}}}catch(e){}var dom={DocumentType:DocumentType,DOMException:DOMException,DOMImplementation:DOMImplementation$1,Element:Element,Node:Node,NodeList:NodeList,XMLSerializer:XMLSerializer$1},entities=createCommonjsModule((function(module,exports){var freeze=conventions.freeze;exports.XML_ENTITIES=freeze({amp:"&",apos:"'",gt:">",lt:"<",quot:'"'}),exports.HTML_ENTITIES=freeze({lt:"<",gt:">",amp:"&",quot:'"',apos:"'",Agrave:"À",Aacute:"Á",Acirc:"Â",Atilde:"Ã",Auml:"Ä",Aring:"Å",AElig:"Æ",Ccedil:"Ç",Egrave:"È",Eacute:"É",Ecirc:"Ê",Euml:"Ë",Igrave:"Ì",Iacute:"Í",Icirc:"Î",Iuml:"Ï",ETH:"Ð",Ntilde:"Ñ",Ograve:"Ò",Oacute:"Ó",Ocirc:"Ô",Otilde:"Õ",Ouml:"Ö",Oslash:"Ø",Ugrave:"Ù",Uacute:"Ú",Ucirc:"Û",Uuml:"Ü",Yacute:"Ý",THORN:"Þ",szlig:"ß",agrave:"à",aacute:"á",acirc:"â",atilde:"ã",auml:"ä",aring:"å",aelig:"æ",ccedil:"ç",egrave:"è",eacute:"é",ecirc:"ê",euml:"ë",igrave:"ì",iacute:"í",icirc:"î",iuml:"ï",eth:"ð",ntilde:"ñ",ograve:"ò",oacute:"ó",ocirc:"ô",otilde:"õ",ouml:"ö",oslash:"ø",ugrave:"ù",uacute:"ú",ucirc:"û",uuml:"ü",yacute:"ý",thorn:"þ",yuml:"ÿ",nbsp:" ",iexcl:"¡",cent:"¢",pound:"£",curren:"¤",yen:"¥",brvbar:"¦",sect:"§",uml:"¨",copy:"©",ordf:"ª",laquo:"«",not:"¬",shy:"­­",reg:"®",macr:"¯",deg:"°",plusmn:"±",sup2:"²",sup3:"³",acute:"´",micro:"µ",para:"¶",middot:"·",cedil:"¸",sup1:"¹",ordm:"º",raquo:"»",frac14:"¼",frac12:"½",frac34:"¾",iquest:"¿",times:"×",divide:"÷",forall:"∀",part:"∂",exist:"∃",empty:"∅",nabla:"∇",isin:"∈",notin:"∉",ni:"∋",prod:"∏",sum:"∑",minus:"−",lowast:"∗",radic:"√",prop:"∝",infin:"∞",ang:"∠",and:"∧",or:"∨",cap:"∩",cup:"∪",int:"∫",there4:"∴",sim:"∼",cong:"≅",asymp:"≈",ne:"≠",equiv:"≡",le:"≤",ge:"≥",sub:"⊂",sup:"⊃",nsub:"⊄",sube:"⊆",supe:"⊇",oplus:"⊕",otimes:"⊗",perp:"⊥",sdot:"⋅",Alpha:"Α",Beta:"Β",Gamma:"Γ",Delta:"Δ",Epsilon:"Ε",Zeta:"Ζ",Eta:"Η",Theta:"Θ",Iota:"Ι",Kappa:"Κ",Lambda:"Λ",Mu:"Μ",Nu:"Ν",Xi:"Ξ",Omicron:"Ο",Pi:"Π",Rho:"Ρ",Sigma:"Σ",Tau:"Τ",Upsilon:"Υ",Phi:"Φ",Chi:"Χ",Psi:"Ψ",Omega:"Ω",alpha:"α",beta:"β",gamma:"γ",delta:"δ",epsilon:"ε",zeta:"ζ",eta:"η",theta:"θ",iota:"ι",kappa:"κ",lambda:"λ",mu:"μ",nu:"ν",xi:"ξ",omicron:"ο",pi:"π",rho:"ρ",sigmaf:"ς",sigma:"σ",tau:"τ",upsilon:"υ",phi:"φ",chi:"χ",psi:"ψ",omega:"ω",thetasym:"ϑ",upsih:"ϒ",piv:"ϖ",OElig:"Œ",oelig:"œ",Scaron:"Š",scaron:"š",Yuml:"Ÿ",fnof:"ƒ",circ:"ˆ",tilde:"˜",ensp:" ",emsp:" ",thinsp:" ",zwnj:"‌",zwj:"‍",lrm:"‎",rlm:"‏",ndash:"–",mdash:"—",lsquo:"‘",rsquo:"’",sbquo:"‚",ldquo:"“",rdquo:"”",bdquo:"„",dagger:"†",Dagger:"‡",bull:"•",hellip:"…",permil:"‰",prime:"′",Prime:"″",lsaquo:"‹",rsaquo:"›",oline:"‾",euro:"€",trade:"™",larr:"←",uarr:"↑",rarr:"→",darr:"↓",harr:"↔",crarr:"↵",lceil:"⌈",rceil:"⌉",lfloor:"⌊",rfloor:"⌋",loz:"◊",spades:"♠",clubs:"♣",hearts:"♥",diams:"♦"}),exports.entityMap=exports.HTML_ENTITIES}));entities.XML_ENTITIES,entities.HTML_ENTITIES,entities.entityMap;var NAMESPACE$1=conventions.NAMESPACE,nameStartChar=/[A-Z_a-z\xC0-\xD6\xD8-\xF6\u00F8-\u02FF\u0370-\u037D\u037F-\u1FFF\u200C-\u200D\u2070-\u218F\u2C00-\u2FEF\u3001-\uD7FF\uF900-\uFDCF\uFDF0-\uFFFD]/,nameChar=new RegExp("[\\-\\.0-9"+nameStartChar.source.slice(1,-1)+"\\u00B7\\u0300-\\u036F\\u203F-\\u2040]"),tagNamePattern=new RegExp("^"+nameStartChar.source+nameChar.source+"*(?::"+nameStartChar.source+nameChar.source+"*)?$");function ParseError$1(message,locator){this.message=message,this.locator=locator,Error.captureStackTrace&&Error.captureStackTrace(this,ParseError$1)}function XMLReader$1(){}function copyLocator(f,t){return t.lineNumber=f.lineNumber,t.columnNumber=f.columnNumber,t}function parseElementStartPart(source,start,el,currentNSMap,entityReplacer,errorHandler){function addAttribute(qname,value,startIndex){el.attributeNames.hasOwnProperty(qname)&&errorHandler.fatalError("Attribute "+qname+" redefined"),el.addValue(qname,value,startIndex)}for(var attrName,p=++start,s=0;;){var c=source.charAt(p);switch(c){case"=":if(1===s)attrName=source.slice(start,p),s=3;else{if(2!==s)throw new Error("attribute equal must after attrName");s=3}break;case"'":case'"':if(3===s||1===s){if(1===s&&(errorHandler.warning('attribute value must after "="'),attrName=source.slice(start,p)),start=p+1,!((p=source.indexOf(c,start))>0))throw new Error("attribute value no end '"+c+"' match");addAttribute(attrName,value=source.slice(start,p).replace(/&#?\w+;/g,entityReplacer),start-1),s=5}else{if(4!=s)throw new Error('attribute value must after "="');addAttribute(attrName,value=source.slice(start,p).replace(/&#?\w+;/g,entityReplacer),start),errorHandler.warning('attribute "'+attrName+'" missed start quot('+c+")!!"),start=p+1,s=5}break;case"/":switch(s){case 0:el.setTagName(source.slice(start,p));case 5:case 6:case 7:s=7,el.closed=!0;case 4:case 1:case 2:break;default:throw new Error("attribute invalid close char('/')")}break;case"":return errorHandler.error("unexpected end of input"),0==s&&el.setTagName(source.slice(start,p)),p;case">":switch(s){case 0:el.setTagName(source.slice(start,p));case 5:case 6:case 7:break;case 4:case 1:"/"===(value=source.slice(start,p)).slice(-1)&&(el.closed=!0,value=value.slice(0,-1));case 2:2===s&&(value=attrName),4==s?(errorHandler.warning('attribute "'+value+'" missed quot(")!'),addAttribute(attrName,value.replace(/&#?\w+;/g,entityReplacer),start)):(NAMESPACE$1.isHTML(currentNSMap[""])&&value.match(/^(?:disabled|checked|selected)$/i)||errorHandler.warning('attribute "'+value+'" missed value!! "'+value+'" instead!!'),addAttribute(value,value,start));break;case 3:throw new Error("attribute value missed!!")}return p;case"€":c=" ";default:if(c<=" ")switch(s){case 0:el.setTagName(source.slice(start,p)),s=6;break;case 1:attrName=source.slice(start,p),s=2;break;case 4:var value=source.slice(start,p).replace(/&#?\w+;/g,entityReplacer);errorHandler.warning('attribute "'+value+'" missed quot(")!!'),addAttribute(attrName,value,start);case 5:s=6}else switch(s){case 2:el.tagName,NAMESPACE$1.isHTML(currentNSMap[""])&&attrName.match(/^(?:disabled|checked|selected)$/i)||errorHandler.warning('attribute "'+attrName+'" missed value!! "'+attrName+'" instead2!!'),addAttribute(attrName,attrName,start),start=p,s=1;break;case 5:errorHandler.warning('attribute space is required"'+attrName+'"!!');case 6:s=1,start=p;break;case 3:s=4,start=p;break;case 7:throw new Error("elements closed character '/' and '>' must be connected to")}}p++}}function appendElement$1(el,domBuilder,currentNSMap){for(var tagName=el.tagName,localNSMap=null,i=el.length;i--;){var a=el[i],qName=a.qName,value=a.value;if((nsp=qName.indexOf(":"))>0)var prefix=a.prefix=qName.slice(0,nsp),localName=qName.slice(nsp+1),nsPrefix="xmlns"===prefix&&localName;else localName=qName,prefix=null,nsPrefix="xmlns"===qName&&"";a.localName=localName,!1!==nsPrefix&&(null==localNSMap&&(localNSMap={},_copy(currentNSMap,currentNSMap={})),currentNSMap[nsPrefix]=localNSMap[nsPrefix]=value,a.uri=NAMESPACE$1.XMLNS,domBuilder.startPrefixMapping(nsPrefix,value))}for(i=el.length;i--;){(prefix=(a=el[i]).prefix)&&("xml"===prefix&&(a.uri=NAMESPACE$1.XML),"xmlns"!==prefix&&(a.uri=currentNSMap[prefix||""]))}var nsp;(nsp=tagName.indexOf(":"))>0?(prefix=el.prefix=tagName.slice(0,nsp),localName=el.localName=tagName.slice(nsp+1)):(prefix=null,localName=el.localName=tagName);var ns=el.uri=currentNSMap[prefix||""];if(domBuilder.startElement(ns,localName,tagName,el),!el.closed)return el.currentNSMap=currentNSMap,el.localNSMap=localNSMap,!0;if(domBuilder.endElement(ns,localName,tagName),localNSMap)for(prefix in localNSMap)domBuilder.endPrefixMapping(prefix)}function parseHtmlSpecialContent(source,elStartEnd,tagName,entityReplacer,domBuilder){if(/^(?:script|textarea)$/i.test(tagName)){var elEndStart=source.indexOf("</"+tagName+">",elStartEnd),text=source.substring(elStartEnd+1,elEndStart);if(/[&<]/.test(text))return/^script$/i.test(tagName)?(domBuilder.characters(text,0,text.length),elEndStart):(text=text.replace(/&#?\w+;/g,entityReplacer),domBuilder.characters(text,0,text.length),elEndStart)}return elStartEnd+1}function fixSelfClosed(source,elStartEnd,tagName,closeMap){var pos=closeMap[tagName];return null==pos&&((pos=source.lastIndexOf("</"+tagName+">"))<elStartEnd&&(pos=source.lastIndexOf("</"+tagName)),closeMap[tagName]=pos),pos<elStartEnd}function _copy(source,target){for(var n in source)target[n]=source[n]}function parseDCC(source,start,domBuilder,errorHandler){if("-"===source.charAt(start+2))return"-"===source.charAt(start+3)?(end=source.indexOf("--\x3e",start+4))>start?(domBuilder.comment(source,start+4,end-start-4),end+3):(errorHandler.error("Unclosed comment"),-1):-1;if("CDATA["==source.substr(start+3,6)){var end=source.indexOf("]]>",start+9);return domBuilder.startCDATA(),domBuilder.characters(source,start+9,end-start-9),domBuilder.endCDATA(),end+3}var matchs=function(source,start){var match,buf=[],reg=/'[^']+'|"[^"]+"|[^\s<>\/=]+=?|(\/?\s*>|<)/g;reg.lastIndex=start,reg.exec(source);for(;match=reg.exec(source);)if(buf.push(match),match[1])return buf}(source,start),len=matchs.length;if(len>1&&/!doctype/i.test(matchs[0][0])){var name=matchs[1][0],pubid=!1,sysid=!1;len>3&&(/^public$/i.test(matchs[2][0])?(pubid=matchs[3][0],sysid=len>4&&matchs[4][0]):/^system$/i.test(matchs[2][0])&&(sysid=matchs[3][0]));var lastMatch=matchs[len-1];return domBuilder.startDTD(name,pubid,sysid),domBuilder.endDTD(),lastMatch.index+lastMatch[0].length}return-1}function parseInstruction(source,start,domBuilder){var end=source.indexOf("?>",start);if(end){var match=source.substring(start,end).match(/^<\?(\S*)\s*([\s\S]*?)\s*$/);return match?(match[0].length,domBuilder.processingInstruction(match[1],match[2]),end+2):-1}return-1}function ElementAttributes(){this.attributeNames={}}ParseError$1.prototype=new Error,ParseError$1.prototype.name=ParseError$1.name,XMLReader$1.prototype={parse:function(source,defaultNSMap,entityMap){var domBuilder=this.domBuilder;domBuilder.startDocument(),_copy(defaultNSMap,defaultNSMap={}),function(source,defaultNSMapCopy,entityMap,domBuilder,errorHandler){function fixedFromCharCode(code){if(code>65535){var surrogate1=55296+((code-=65536)>>10),surrogate2=56320+(1023&code);return String.fromCharCode(surrogate1,surrogate2)}return String.fromCharCode(code)}function entityReplacer(a){var k=a.slice(1,-1);return k in entityMap?entityMap[k]:"#"===k.charAt(0)?fixedFromCharCode(parseInt(k.substr(1).replace("x","0x"))):(errorHandler.error("entity not found:"+a),a)}function appendText(end){if(end>start){var xt=source.substring(start,end).replace(/&#?\w+;/g,entityReplacer);locator&&position(start),domBuilder.characters(xt,0,end-start),start=end}}function position(p,m){for(;p>=lineEnd&&(m=linePattern.exec(source));)lineStart=m.index,lineEnd=lineStart+m[0].length,locator.lineNumber++;locator.columnNumber=p-lineStart+1}var lineStart=0,lineEnd=0,linePattern=/.*(?:\r\n?|\n)|.*$/g,locator=domBuilder.locator,parseStack=[{currentNSMap:defaultNSMapCopy}],closeMap={},start=0;for(;;){try{var tagStart=source.indexOf("<",start);if(tagStart<0){if(!source.substr(start).match(/^\s*$/)){var doc=domBuilder.doc,text=doc.createTextNode(source.substr(start));doc.appendChild(text),domBuilder.currentElement=text}return}switch(tagStart>start&&appendText(tagStart),source.charAt(tagStart+1)){case"/":var end=source.indexOf(">",tagStart+3),tagName=source.substring(tagStart+2,end).replace(/[ \t\n\r]+$/g,""),config=parseStack.pop();end<0?(tagName=source.substring(tagStart+2).replace(/[\s<].*/,""),errorHandler.error("end tag name: "+tagName+" is not complete:"+config.tagName),end=tagStart+1+tagName.length):tagName.match(/\s</)&&(tagName=tagName.replace(/[\s<].*/,""),errorHandler.error("end tag name: "+tagName+" maybe not complete"),end=tagStart+1+tagName.length);var localNSMap=config.localNSMap,endMatch=config.tagName==tagName;if(endMatch||config.tagName&&config.tagName.toLowerCase()==tagName.toLowerCase()){if(domBuilder.endElement(config.uri,config.localName,tagName),localNSMap)for(var prefix in localNSMap)domBuilder.endPrefixMapping(prefix);endMatch||errorHandler.fatalError("end tag name: "+tagName+" is not match the current start tagName:"+config.tagName)}else parseStack.push(config);end++;break;case"?":locator&&position(tagStart),end=parseInstruction(source,tagStart,domBuilder);break;case"!":locator&&position(tagStart),end=parseDCC(source,tagStart,domBuilder,errorHandler);break;default:locator&&position(tagStart);var el=new ElementAttributes,currentNSMap=parseStack[parseStack.length-1].currentNSMap,len=(end=parseElementStartPart(source,tagStart,el,currentNSMap,entityReplacer,errorHandler),el.length);if(!el.closed&&fixSelfClosed(source,end,el.tagName,closeMap)&&(el.closed=!0,entityMap.nbsp||errorHandler.warning("unclosed xml attribute")),locator&&len){for(var locator2=copyLocator(locator,{}),i=0;i<len;i++){var a=el[i];position(a.offset),a.locator=copyLocator(locator,{})}domBuilder.locator=locator2,appendElement$1(el,domBuilder,currentNSMap)&&parseStack.push(el),domBuilder.locator=locator}else appendElement$1(el,domBuilder,currentNSMap)&&parseStack.push(el);NAMESPACE$1.isHTML(el.uri)&&!el.closed?end=parseHtmlSpecialContent(source,end,el.tagName,entityReplacer,domBuilder):end++}}catch(e){if(e instanceof ParseError$1)throw e;errorHandler.error("element parse error: "+e),end=-1}end>start?start=end:appendText(Math.max(tagStart,start)+1)}}(source,defaultNSMap,entityMap,domBuilder,this.errorHandler),domBuilder.endDocument()}},ElementAttributes.prototype={setTagName:function(tagName){if(!tagNamePattern.test(tagName))throw new Error("invalid tagName:"+tagName);this.tagName=tagName},addValue:function(qName,value,offset){if(!tagNamePattern.test(qName))throw new Error("invalid attribute:"+qName);this.attributeNames[qName]=this.length,this[this.length++]={qName:qName,value:value,offset:offset}},length:0,getLocalName:function(i){return this[i].localName},getLocator:function(i){return this[i].locator},getQName:function(i){return this[i].qName},getURI:function(i){return this[i].uri},getValue:function(i){return this[i].value}};var sax={XMLReader:XMLReader$1,ParseError:ParseError$1},DOMImplementation=dom.DOMImplementation,NAMESPACE=conventions.NAMESPACE,ParseError=sax.ParseError,XMLReader=sax.XMLReader;function DOMParser$1(options){this.options=options||{locator:{}}}function DOMHandler(){this.cdata=!1}function position(locator,node){node.lineNumber=locator.lineNumber,node.columnNumber=locator.columnNumber}function _locator(l){if(l)return"\n@"+(l.systemId||"")+"#[line:"+l.lineNumber+",col:"+l.columnNumber+"]"}function _toString(chars,start,length){return"string"==typeof chars?chars.substr(start,length):chars.length>=start+length||start?new java.lang.String(chars,start,length)+"":chars}function appendElement(hander,node){hander.currentElement?hander.currentElement.appendChild(node):hander.doc.appendChild(node)}DOMParser$1.prototype.parseFromString=function(source,mimeType){var options=this.options,sax=new XMLReader,domBuilder=options.domBuilder||new DOMHandler,errorHandler=options.errorHandler,locator=options.locator,defaultNSMap=options.xmlns||{},isHTML=/\/x?html?$/.test(mimeType),entityMap=isHTML?entities.HTML_ENTITIES:entities.XML_ENTITIES;return locator&&domBuilder.setDocumentLocator(locator),sax.errorHandler=function(errorImpl,domBuilder,locator){if(!errorImpl){if(domBuilder instanceof DOMHandler)return domBuilder;errorImpl=domBuilder}var errorHandler={},isCallback=errorImpl instanceof Function;function build(key){var fn=errorImpl[key];!fn&&isCallback&&(fn=2==errorImpl.length?function(msg){errorImpl(key,msg)}:errorImpl),errorHandler[key]=fn&&function(msg){fn("[xmldom "+key+"]\t"+msg+_locator(locator))}||function(){}}return locator=locator||{},build("warning"),build("error"),build("fatalError"),errorHandler}(errorHandler,domBuilder,locator),sax.domBuilder=options.domBuilder||domBuilder,isHTML&&(defaultNSMap[""]=NAMESPACE.HTML),defaultNSMap.xml=defaultNSMap.xml||NAMESPACE.XML,source&&"string"==typeof source?sax.parse(source,defaultNSMap,entityMap):sax.errorHandler.error("invalid doc source"),domBuilder.doc},DOMHandler.prototype={startDocument:function(){this.doc=(new DOMImplementation).createDocument(null,null,null),this.locator&&(this.doc.documentURI=this.locator.systemId)},startElement:function(namespaceURI,localName,qName,attrs){var doc=this.doc,el=doc.createElementNS(namespaceURI,qName||localName),len=attrs.length;appendElement(this,el),this.currentElement=el,this.locator&&position(this.locator,el);for(var i=0;i<len;i++){namespaceURI=attrs.getURI(i);var value=attrs.getValue(i),attr=(qName=attrs.getQName(i),doc.createAttributeNS(namespaceURI,qName));this.locator&&position(attrs.getLocator(i),attr),attr.value=attr.nodeValue=value,el.setAttributeNode(attr)}},endElement:function(namespaceURI,localName,qName){var current=this.currentElement;current.tagName,this.currentElement=current.parentNode},startPrefixMapping:function(prefix,uri){},endPrefixMapping:function(prefix){},processingInstruction:function(target,data){var ins=this.doc.createProcessingInstruction(target,data);this.locator&&position(this.locator,ins),appendElement(this,ins)},ignorableWhitespace:function(ch,start,length){},characters:function(chars,start,length){if(chars=_toString.apply(this,arguments)){if(this.cdata)var charNode=this.doc.createCDATASection(chars);else charNode=this.doc.createTextNode(chars);this.currentElement?this.currentElement.appendChild(charNode):/^\s*$/.test(chars)&&this.doc.appendChild(charNode),this.locator&&position(this.locator,charNode)}},skippedEntity:function(name){},endDocument:function(){this.doc.normalize()},setDocumentLocator:function(locator){(this.locator=locator)&&(locator.lineNumber=0)},comment:function(chars,start,length){chars=_toString.apply(this,arguments);var comm=this.doc.createComment(chars);this.locator&&position(this.locator,comm),appendElement(this,comm)},startCDATA:function(){this.cdata=!0},endCDATA:function(){this.cdata=!1},startDTD:function(name,publicId,systemId){var impl=this.doc.implementation;if(impl&&impl.createDocumentType){var dt=impl.createDocumentType(name,publicId,systemId);this.locator&&position(this.locator,dt),appendElement(this,dt),this.doc.doctype=dt}},warning:function(error){console.warn("[xmldom warning]\t"+error,_locator(this.locator))},error:function(_error){console.error("[xmldom error]\t"+_error,_locator(this.locator))},fatalError:function(error){throw new ParseError(error,this.locator)}},"endDTD,startEntity,endEntity,attributeDecl,elementDecl,externalEntityDecl,internalEntityDecl,resolveEntity,getExternalSubset,notationDecl,unparsedEntityDecl".replace(/\w+/g,(function(key){DOMHandler.prototype[key]=function(){return null}}));var DOMParser={__DOMHandler:DOMHandler,DOMParser:DOMParser$1,DOMImplementation:dom.DOMImplementation,XMLSerializer:dom.XMLSerializer}.DOMParser,isObject=function(obj){return!!obj&&"object"==typeof obj},merge=function merge(){for(var _len=arguments.length,objects=new Array(_len),_key=0;_key<_len;_key++)objects[_key]=arguments[_key];return objects.reduce((function(result,source){return"object"!=typeof source||Object.keys(source).forEach((function(key){Array.isArray(result[key])&&Array.isArray(source[key])?result[key]=result[key].concat(source[key]):isObject(result[key])&&isObject(source[key])?result[key]=merge(result[key],source[key]):result[key]=source[key]})),result}),{})},values=function(o){return Object.keys(o).map((function(k){return o[k]}))},flatten=function(lists){return lists.reduce((function(x,y){return x.concat(y)}),[])},from=function(list){if(!list.length)return[];for(var result=[],i=0;i<list.length;i++)result.push(list[i]);return result},findIndex=function(list,matchingFunction){for(var i=0;i<list.length;i++)if(matchingFunction(list[i]))return i;return-1},errors_INVALID_NUMBER_OF_PERIOD="INVALID_NUMBER_OF_PERIOD",errors_DASH_EMPTY_MANIFEST="DASH_EMPTY_MANIFEST",errors_DASH_INVALID_XML="DASH_INVALID_XML",errors_NO_BASE_URL="NO_BASE_URL",errors_SEGMENT_TIME_UNSPECIFIED="SEGMENT_TIME_UNSPECIFIED",errors_UNSUPPORTED_UTC_TIMING_SCHEME="UNSUPPORTED_UTC_TIMING_SCHEME",urlTypeToSegment=function(_ref){var _ref$baseUrl=_ref.baseUrl,baseUrl=void 0===_ref$baseUrl?"":_ref$baseUrl,_ref$source=_ref.source,source=void 0===_ref$source?"":_ref$source,_ref$range=_ref.range,range=void 0===_ref$range?"":_ref$range,_ref$indexRange=_ref.indexRange,indexRange=void 0===_ref$indexRange?"":_ref$indexRange,segment={uri:source,resolvedUri:resolveUrl$1(baseUrl||"",source)};if(range||indexRange){var length,ranges=(range||indexRange).split("-"),startRange=window.BigInt?window.BigInt(ranges[0]):parseInt(ranges[0],10),endRange=window.BigInt?window.BigInt(ranges[1]):parseInt(ranges[1],10);startRange<Number.MAX_SAFE_INTEGER&&"bigint"==typeof startRange&&(startRange=Number(startRange)),endRange<Number.MAX_SAFE_INTEGER&&"bigint"==typeof endRange&&(endRange=Number(endRange)),"bigint"==typeof(length="bigint"==typeof endRange||"bigint"==typeof startRange?window.BigInt(endRange)-window.BigInt(startRange)+window.BigInt(1):endRange-startRange+1)&&length<Number.MAX_SAFE_INTEGER&&(length=Number(length)),segment.byterange={length:length,offset:startRange}}return segment},parseEndNumber=function(endNumber){return endNumber&&"number"!=typeof endNumber&&(endNumber=parseInt(endNumber,10)),isNaN(endNumber)?null:endNumber},segmentRange={static:function(attributes){var duration=attributes.duration,_attributes$timescale=attributes.timescale,timescale=void 0===_attributes$timescale?1:_attributes$timescale,sourceDuration=attributes.sourceDuration,periodDuration=attributes.periodDuration,endNumber=parseEndNumber(attributes.endNumber),segmentDuration=duration/timescale;return"number"==typeof endNumber?{start:0,end:endNumber}:"number"==typeof periodDuration?{start:0,end:periodDuration/segmentDuration}:{start:0,end:sourceDuration/segmentDuration}},dynamic:function(attributes){var NOW=attributes.NOW,clientOffset=attributes.clientOffset,availabilityStartTime=attributes.availabilityStartTime,_attributes$timescale2=attributes.timescale,timescale=void 0===_attributes$timescale2?1:_attributes$timescale2,duration=attributes.duration,_attributes$periodSta=attributes.periodStart,periodStart=void 0===_attributes$periodSta?0:_attributes$periodSta,_attributes$minimumUp=attributes.minimumUpdatePeriod,minimumUpdatePeriod=void 0===_attributes$minimumUp?0:_attributes$minimumUp,_attributes$timeShift=attributes.timeShiftBufferDepth,timeShiftBufferDepth=void 0===_attributes$timeShift?1/0:_attributes$timeShift,endNumber=parseEndNumber(attributes.endNumber),now=(NOW+clientOffset)/1e3,periodStartWC=availabilityStartTime+periodStart,periodDuration=now+minimumUpdatePeriod-periodStartWC,segmentCount=Math.ceil(periodDuration*timescale/duration),availableStart=Math.floor((now-periodStartWC-timeShiftBufferDepth)*timescale/duration),availableEnd=Math.floor((now-periodStartWC)*timescale/duration);return{start:Math.max(0,availableStart),end:"number"==typeof endNumber?endNumber:Math.min(segmentCount,availableEnd)}}},parseByDuration=function(attributes){var type=attributes.type,duration=attributes.duration,_attributes$timescale4=attributes.timescale,timescale=void 0===_attributes$timescale4?1:_attributes$timescale4,periodDuration=attributes.periodDuration,sourceDuration=attributes.sourceDuration,_segmentRange$type=segmentRange[type](attributes),segments=function(start,end){for(var result=[],i=start;i<end;i++)result.push(i);return result}(_segmentRange$type.start,_segmentRange$type.end).map(function(attributes){return function(number){var duration=attributes.duration,_attributes$timescale3=attributes.timescale,timescale=void 0===_attributes$timescale3?1:_attributes$timescale3,periodStart=attributes.periodStart,_attributes$startNumb=attributes.startNumber;return{number:(void 0===_attributes$startNumb?1:_attributes$startNumb)+number,duration:duration/timescale,timeline:periodStart,time:number*duration}}}(attributes));if("static"===type){var index=segments.length-1,sectionDuration="number"==typeof periodDuration?periodDuration:sourceDuration;segments[index].duration=sectionDuration-duration/timescale*index}return segments},segmentsFromBase=function(attributes){var baseUrl=attributes.baseUrl,_attributes$initializ=attributes.initialization,initialization=void 0===_attributes$initializ?{}:_attributes$initializ,sourceDuration=attributes.sourceDuration,_attributes$indexRang=attributes.indexRange,indexRange=void 0===_attributes$indexRang?"":_attributes$indexRang,periodStart=attributes.periodStart,presentationTime=attributes.presentationTime,_attributes$number=attributes.number,number=void 0===_attributes$number?0:_attributes$number,duration=attributes.duration;if(!baseUrl)throw new Error(errors_NO_BASE_URL);var initSegment=urlTypeToSegment({baseUrl:baseUrl,source:initialization.sourceURL,range:initialization.range}),segment=urlTypeToSegment({baseUrl:baseUrl,source:baseUrl,indexRange:indexRange});if(segment.map=initSegment,duration){var segmentTimeInfo=parseByDuration(attributes);segmentTimeInfo.length&&(segment.duration=segmentTimeInfo[0].duration,segment.timeline=segmentTimeInfo[0].timeline)}else sourceDuration&&(segment.duration=sourceDuration,segment.timeline=periodStart);return segment.presentationTime=presentationTime||periodStart,segment.number=number,[segment]},addSidxSegmentsToPlaylist$1=function(playlist,sidx,baseUrl){var startIndex,initSegment=playlist.sidx.map?playlist.sidx.map:null,sourceDuration=playlist.sidx.duration,timeline=playlist.timeline||0,sidxByteRange=playlist.sidx.byterange,sidxEnd=sidxByteRange.offset+sidxByteRange.length,timescale=sidx.timescale,mediaReferences=sidx.references.filter((function(r){return 1!==r.referenceType})),segments=[],type=playlist.endList?"static":"dynamic",periodStart=playlist.sidx.timeline,presentationTime=periodStart,number=playlist.mediaSequence||0;startIndex="bigint"==typeof sidx.firstOffset?window.BigInt(sidxEnd)+sidx.firstOffset:sidxEnd+sidx.firstOffset;for(var i=0;i<mediaReferences.length;i++){var reference=sidx.references[i],size=reference.referencedSize,duration=reference.subsegmentDuration,endIndex=void 0;endIndex="bigint"==typeof startIndex?startIndex+window.BigInt(size)-window.BigInt(1):startIndex+size-1;var segment=segmentsFromBase({baseUrl:baseUrl,timescale:timescale,timeline:timeline,periodStart:periodStart,presentationTime:presentationTime,number:number,duration:duration,sourceDuration:sourceDuration,indexRange:startIndex+"-"+endIndex,type:type})[0];initSegment&&(segment.map=initSegment),segments.push(segment),startIndex+="bigint"==typeof startIndex?window.BigInt(size):size,presentationTime+=duration/timescale,number++}return playlist.segments=segments,playlist},SUPPORTED_MEDIA_TYPES=["AUDIO","SUBTITLES"],getUniqueTimelineStarts=function(timelineStarts){return(lists=timelineStarts,keyFunction=function(_ref){return _ref.timeline},values(lists.reduce((function(acc,list){return list.forEach((function(el){acc[keyFunction(el)]=el})),acc}),{}))).sort((function(a,b){return a.timeline>b.timeline?1:-1}));var lists,keyFunction},getMediaGroupPlaylists=function(manifest){var master,callback,mediaGroupPlaylists=[];return master=manifest,callback=function(properties,type,group,label){mediaGroupPlaylists=mediaGroupPlaylists.concat(properties.playlists||[])},SUPPORTED_MEDIA_TYPES.forEach((function(mediaType){for(var groupKey in master.mediaGroups[mediaType])for(var labelKey in master.mediaGroups[mediaType][groupKey]){var mediaProperties=master.mediaGroups[mediaType][groupKey][labelKey];callback(mediaProperties,mediaType,groupKey,labelKey)}})),mediaGroupPlaylists},updateMediaSequenceForPlaylist=function(_ref2){var playlist=_ref2.playlist,mediaSequence=_ref2.mediaSequence;playlist.mediaSequence=mediaSequence,playlist.segments.forEach((function(segment,index){segment.number=playlist.mediaSequence+index}))},positionManifestOnTimeline=function(_ref5){var oldManifest=_ref5.oldManifest,newManifest=_ref5.newManifest,oldPlaylists=oldManifest.playlists.concat(getMediaGroupPlaylists(oldManifest)),newPlaylists=newManifest.playlists.concat(getMediaGroupPlaylists(newManifest));return newManifest.timelineStarts=getUniqueTimelineStarts([oldManifest.timelineStarts,newManifest.timelineStarts]),function(_ref3){var oldPlaylists=_ref3.oldPlaylists,newPlaylists=_ref3.newPlaylists,timelineStarts=_ref3.timelineStarts;newPlaylists.forEach((function(playlist){playlist.discontinuitySequence=findIndex(timelineStarts,(function(_ref4){return _ref4.timeline===playlist.timeline}));var oldPlaylist=function(playlists,name){for(var i=0;i<playlists.length;i++)if(playlists[i].attributes.NAME===name)return playlists[i];return null}(oldPlaylists,playlist.attributes.NAME);if(oldPlaylist&&!playlist.sidx){var firstNewSegment=playlist.segments[0],oldMatchingSegmentIndex=findIndex(oldPlaylist.segments,(function(oldSegment){return Math.abs(oldSegment.presentationTime-firstNewSegment.presentationTime)<.016666666666666666}));if(-1===oldMatchingSegmentIndex)return updateMediaSequenceForPlaylist({playlist:playlist,mediaSequence:oldPlaylist.mediaSequence+oldPlaylist.segments.length}),playlist.segments[0].discontinuity=!0,playlist.discontinuityStarts.unshift(0),void((!oldPlaylist.segments.length&&playlist.timeline>oldPlaylist.timeline||oldPlaylist.segments.length&&playlist.timeline>oldPlaylist.segments[oldPlaylist.segments.length-1].timeline)&&playlist.discontinuitySequence--);oldPlaylist.segments[oldMatchingSegmentIndex].discontinuity&&!firstNewSegment.discontinuity&&(firstNewSegment.discontinuity=!0,playlist.discontinuityStarts.unshift(0),playlist.discontinuitySequence--),updateMediaSequenceForPlaylist({playlist:playlist,mediaSequence:oldPlaylist.segments[oldMatchingSegmentIndex].number})}}))}({oldPlaylists:oldPlaylists,newPlaylists:newPlaylists,timelineStarts:newManifest.timelineStarts}),newManifest},generateSidxKey=function(sidx){return sidx&&sidx.uri+"-"+(byterange=sidx.byterange,endRange="bigint"==typeof byterange.offset||"bigint"==typeof byterange.length?window.BigInt(byterange.offset)+window.BigInt(byterange.length)-window.BigInt(1):byterange.offset+byterange.length-1,byterange.offset+"-"+endRange);var byterange,endRange},mergeDiscontiguousPlaylists=function(playlists){return values(playlists.reduce((function(acc,playlist){var name=playlist.attributes.id+(playlist.attributes.lang||"");if(acc[name]){var _acc$name$segments;if(playlist.segments)playlist.segments[0]&&(playlist.segments[0].discontinuity=!0),(_acc$name$segments=acc[name].segments).push.apply(_acc$name$segments,playlist.segments);playlist.attributes.contentProtection&&(acc[name].attributes.contentProtection=playlist.attributes.contentProtection)}else acc[name]=playlist,acc[name].attributes.timelineStarts=[];return acc[name].attributes.timelineStarts.push({start:playlist.attributes.periodStart,timeline:playlist.attributes.periodStart}),acc}),{})).map((function(playlist){var l,key;return playlist.discontinuityStarts=(l=playlist.segments||[],key="discontinuity",l.reduce((function(a,e,i){return e[key]&&a.push(i),a}),[])),playlist}))},addSidxSegmentsToPlaylist=function(playlist,sidxMapping){var sidxKey=generateSidxKey(playlist.sidx),sidxMatch=sidxKey&&sidxMapping[sidxKey]&&sidxMapping[sidxKey].sidx;return sidxMatch&&addSidxSegmentsToPlaylist$1(playlist,sidxMatch,playlist.sidx.resolvedUri),playlist},addSidxSegmentsToPlaylists=function(playlists,sidxMapping){if(void 0===sidxMapping&&(sidxMapping={}),!Object.keys(sidxMapping).length)return playlists;for(var i in playlists)playlists[i]=addSidxSegmentsToPlaylist(playlists[i],sidxMapping);return playlists},formatVideoPlaylist=function(_ref3){var _attributes2,attributes=_ref3.attributes,segments=_ref3.segments,sidx=_ref3.sidx,discontinuityStarts=_ref3.discontinuityStarts,playlist={attributes:(_attributes2={NAME:attributes.id,AUDIO:"audio",SUBTITLES:"subs",RESOLUTION:{width:attributes.width,height:attributes.height},CODECS:attributes.codecs,BANDWIDTH:attributes.bandwidth},_attributes2["PROGRAM-ID"]=1,_attributes2),uri:"",endList:"static"===attributes.type,timeline:attributes.periodStart,resolvedUri:"",targetDuration:attributes.duration,discontinuityStarts:discontinuityStarts,timelineStarts:attributes.timelineStarts,segments:segments};return attributes.contentProtection&&(playlist.contentProtection=attributes.contentProtection),sidx&&(playlist.sidx=sidx),playlist},videoOnly=function(_ref4){var attributes=_ref4.attributes;return"video/mp4"===attributes.mimeType||"video/webm"===attributes.mimeType||"video"===attributes.contentType},audioOnly=function(_ref5){var attributes=_ref5.attributes;return"audio/mp4"===attributes.mimeType||"audio/webm"===attributes.mimeType||"audio"===attributes.contentType},vttOnly=function(_ref6){var attributes=_ref6.attributes;return"text/vtt"===attributes.mimeType||"text"===attributes.contentType},flattenMediaGroupPlaylists=function(mediaGroupObject){return mediaGroupObject?Object.keys(mediaGroupObject).reduce((function(acc,label){var labelContents=mediaGroupObject[label];return acc.concat(labelContents.playlists)}),[]):[]},toM3u8=function(_ref8){var _mediaGroups,dashPlaylists=_ref8.dashPlaylists,locations=_ref8.locations,_ref8$sidxMapping=_ref8.sidxMapping,sidxMapping=void 0===_ref8$sidxMapping?{}:_ref8$sidxMapping,previousManifest=_ref8.previousManifest;if(!dashPlaylists.length)return{};var _dashPlaylists$0$attr=dashPlaylists[0].attributes,duration=_dashPlaylists$0$attr.sourceDuration,type=_dashPlaylists$0$attr.type,suggestedPresentationDelay=_dashPlaylists$0$attr.suggestedPresentationDelay,minimumUpdatePeriod=_dashPlaylists$0$attr.minimumUpdatePeriod,videoPlaylists=mergeDiscontiguousPlaylists(dashPlaylists.filter(videoOnly)).map(formatVideoPlaylist),audioPlaylists=mergeDiscontiguousPlaylists(dashPlaylists.filter(audioOnly)),vttPlaylists=mergeDiscontiguousPlaylists(dashPlaylists.filter(vttOnly)),captions=dashPlaylists.map((function(playlist){return playlist.attributes.captionServices})).filter(Boolean),manifest={allowCache:!0,discontinuityStarts:[],segments:[],endList:!0,mediaGroups:(_mediaGroups={AUDIO:{},VIDEO:{}},_mediaGroups["CLOSED-CAPTIONS"]={},_mediaGroups.SUBTITLES={},_mediaGroups),uri:"",duration:duration,playlists:addSidxSegmentsToPlaylists(videoPlaylists,sidxMapping)};minimumUpdatePeriod>=0&&(manifest.minimumUpdatePeriod=1e3*minimumUpdatePeriod),locations&&(manifest.locations=locations),"dynamic"===type&&(manifest.suggestedPresentationDelay=suggestedPresentationDelay);var playlists,timelineStarts,isAudioOnly=0===manifest.playlists.length,organizedAudioGroup=audioPlaylists.length?function(playlists,sidxMapping,isAudioOnly){var mainPlaylist;void 0===sidxMapping&&(sidxMapping={}),void 0===isAudioOnly&&(isAudioOnly=!1);var formattedPlaylists=playlists.reduce((function(a,playlist){var role=playlist.attributes.role&&playlist.attributes.role.value||"",language=playlist.attributes.lang||"",label=playlist.attributes.label||"main";if(language&&!playlist.attributes.label){var roleLabel=role?" ("+role+")":"";label=""+playlist.attributes.lang+roleLabel}a[label]||(a[label]={language:language,autoselect:!0,default:"main"===role,playlists:[],uri:""});var formatted=addSidxSegmentsToPlaylist(function(_ref,isAudioOnly){var _attributes,attributes=_ref.attributes,segments=_ref.segments,sidx=_ref.sidx,mediaSequence=_ref.mediaSequence,discontinuitySequence=_ref.discontinuitySequence,discontinuityStarts=_ref.discontinuityStarts,playlist={attributes:(_attributes={NAME:attributes.id,BANDWIDTH:attributes.bandwidth,CODECS:attributes.codecs},_attributes["PROGRAM-ID"]=1,_attributes),uri:"",endList:"static"===attributes.type,timeline:attributes.periodStart,resolvedUri:"",targetDuration:attributes.duration,discontinuitySequence:discontinuitySequence,discontinuityStarts:discontinuityStarts,timelineStarts:attributes.timelineStarts,mediaSequence:mediaSequence,segments:segments};return attributes.contentProtection&&(playlist.contentProtection=attributes.contentProtection),sidx&&(playlist.sidx=sidx),isAudioOnly&&(playlist.attributes.AUDIO="audio",playlist.attributes.SUBTITLES="subs"),playlist}(playlist,isAudioOnly),sidxMapping);return a[label].playlists.push(formatted),void 0===mainPlaylist&&"main"===role&&((mainPlaylist=playlist).default=!0),a}),{});return mainPlaylist||(formattedPlaylists[Object.keys(formattedPlaylists)[0]].default=!0),formattedPlaylists}(audioPlaylists,sidxMapping,isAudioOnly):null,organizedVttGroup=vttPlaylists.length?function(playlists,sidxMapping){return void 0===sidxMapping&&(sidxMapping={}),playlists.reduce((function(a,playlist){var label=playlist.attributes.lang||"text";return a[label]||(a[label]={language:label,default:!1,autoselect:!1,playlists:[],uri:""}),a[label].playlists.push(addSidxSegmentsToPlaylist(function(_ref2){var _m3u8Attributes,attributes=_ref2.attributes,segments=_ref2.segments,mediaSequence=_ref2.mediaSequence,discontinuityStarts=_ref2.discontinuityStarts,discontinuitySequence=_ref2.discontinuitySequence;void 0===segments&&(segments=[{uri:attributes.baseUrl,timeline:attributes.periodStart,resolvedUri:attributes.baseUrl||"",duration:attributes.sourceDuration,number:0}],attributes.duration=attributes.sourceDuration);var m3u8Attributes=((_m3u8Attributes={NAME:attributes.id,BANDWIDTH:attributes.bandwidth})["PROGRAM-ID"]=1,_m3u8Attributes);return attributes.codecs&&(m3u8Attributes.CODECS=attributes.codecs),{attributes:m3u8Attributes,uri:"",endList:"static"===attributes.type,timeline:attributes.periodStart,resolvedUri:attributes.baseUrl||"",targetDuration:attributes.duration,timelineStarts:attributes.timelineStarts,discontinuityStarts:discontinuityStarts,discontinuitySequence:discontinuitySequence,mediaSequence:mediaSequence,segments:segments}}(playlist),sidxMapping)),a}),{})}(vttPlaylists,sidxMapping):null,formattedPlaylists=videoPlaylists.concat(flattenMediaGroupPlaylists(organizedAudioGroup),flattenMediaGroupPlaylists(organizedVttGroup)),playlistTimelineStarts=formattedPlaylists.map((function(_ref9){return _ref9.timelineStarts}));return manifest.timelineStarts=getUniqueTimelineStarts(playlistTimelineStarts),playlists=formattedPlaylists,timelineStarts=manifest.timelineStarts,playlists.forEach((function(playlist){playlist.mediaSequence=0,playlist.discontinuitySequence=findIndex(timelineStarts,(function(_ref7){return _ref7.timeline===playlist.timeline})),playlist.segments&&playlist.segments.forEach((function(segment,index){segment.number=index}))})),organizedAudioGroup&&(manifest.mediaGroups.AUDIO.audio=organizedAudioGroup),organizedVttGroup&&(manifest.mediaGroups.SUBTITLES.subs=organizedVttGroup),captions.length&&(manifest.mediaGroups["CLOSED-CAPTIONS"].cc=captions.reduce((function(svcObj,svc){return svc?(svc.forEach((function(service){var channel=service.channel,language=service.language;svcObj[language]={autoselect:!1,default:!1,instreamId:channel,language:language},service.hasOwnProperty("aspectRatio")&&(svcObj[language].aspectRatio=service.aspectRatio),service.hasOwnProperty("easyReader")&&(svcObj[language].easyReader=service.easyReader),service.hasOwnProperty("3D")&&(svcObj[language]["3D"]=service["3D"])})),svcObj):svcObj}),{})),previousManifest?positionManifestOnTimeline({oldManifest:previousManifest,newManifest:manifest}):manifest},getLiveRValue=function(attributes,time,duration){var NOW=attributes.NOW,clientOffset=attributes.clientOffset,availabilityStartTime=attributes.availabilityStartTime,_attributes$timescale=attributes.timescale,timescale=void 0===_attributes$timescale?1:_attributes$timescale,_attributes$periodSta=attributes.periodStart,periodStart=void 0===_attributes$periodSta?0:_attributes$periodSta,_attributes$minimumUp=attributes.minimumUpdatePeriod,periodDuration=(NOW+clientOffset)/1e3+(void 0===_attributes$minimumUp?0:_attributes$minimumUp)-(availabilityStartTime+periodStart);return Math.ceil((periodDuration*timescale-time)/duration)},parseByTimeline=function(attributes,segmentTimeline){for(var type=attributes.type,_attributes$minimumUp2=attributes.minimumUpdatePeriod,minimumUpdatePeriod=void 0===_attributes$minimumUp2?0:_attributes$minimumUp2,_attributes$media=attributes.media,media=void 0===_attributes$media?"":_attributes$media,sourceDuration=attributes.sourceDuration,_attributes$timescale2=attributes.timescale,timescale=void 0===_attributes$timescale2?1:_attributes$timescale2,_attributes$startNumb=attributes.startNumber,startNumber=void 0===_attributes$startNumb?1:_attributes$startNumb,timeline=attributes.periodStart,segments=[],time=-1,sIndex=0;sIndex<segmentTimeline.length;sIndex++){var S=segmentTimeline[sIndex],duration=S.d,repeat=S.r||0,segmentTime=S.t||0;time<0&&(time=segmentTime),segmentTime&&segmentTime>time&&(time=segmentTime);var count=void 0;if(repeat<0){var nextS=sIndex+1;count=nextS===segmentTimeline.length?"dynamic"===type&&minimumUpdatePeriod>0&&media.indexOf("$Number$")>0?getLiveRValue(attributes,time,duration):(sourceDuration*timescale-time)/duration:(segmentTimeline[nextS].t-time)/duration}else count=repeat+1;for(var end=startNumber+segments.length+count,number=startNumber+segments.length;number<end;)segments.push({number:number,duration:duration/timescale,time:time,timeline:timeline}),time+=duration,number++}return segments},identifierPattern=/\$([A-z]*)(?:(%0)([0-9]+)d)?\$/g,constructTemplateUrl=function(url,values){return url.replace(identifierPattern,function(values){return function(match,identifier,format,width){if("$$"===match)return"$";if(void 0===values[identifier])return match;var value=""+values[identifier];return"RepresentationID"===identifier?value:(width=format?parseInt(width,10):1,value.length>=width?value:""+new Array(width-value.length+1).join("0")+value)}}(values))},segmentsFromTemplate=function(attributes,segmentTimeline){var templateValues={RepresentationID:attributes.id,Bandwidth:attributes.bandwidth||0},_attributes$initializ=attributes.initialization,initialization=void 0===_attributes$initializ?{sourceURL:"",range:""}:_attributes$initializ,mapSegment=urlTypeToSegment({baseUrl:attributes.baseUrl,source:constructTemplateUrl(initialization.sourceURL,templateValues),range:initialization.range}),segments=function(attributes,segmentTimeline){return attributes.duration||segmentTimeline?attributes.duration?parseByDuration(attributes):parseByTimeline(attributes,segmentTimeline):[{number:attributes.startNumber||1,duration:attributes.sourceDuration,time:0,timeline:attributes.periodStart}]}(attributes,segmentTimeline);return segments.map((function(segment){templateValues.Number=segment.number,templateValues.Time=segment.time;var uri=constructTemplateUrl(attributes.media||"",templateValues),timescale=attributes.timescale||1,presentationTimeOffset=attributes.presentationTimeOffset||0,presentationTime=attributes.periodStart+(segment.time-presentationTimeOffset)/timescale;return{uri:uri,timeline:segment.timeline,duration:segment.duration,resolvedUri:resolveUrl$1(attributes.baseUrl||"",uri),map:mapSegment,number:segment.number,presentationTime:presentationTime}}))},segmentsFromList=function(attributes,segmentTimeline){var duration=attributes.duration,_attributes$segmentUr=attributes.segmentUrls,segmentUrls=void 0===_attributes$segmentUr?[]:_attributes$segmentUr,periodStart=attributes.periodStart;if(!duration&&!segmentTimeline||duration&&segmentTimeline)throw new Error(errors_SEGMENT_TIME_UNSPECIFIED);var segmentTimeInfo,segmentUrlMap=segmentUrls.map((function(segmentUrlObject){return function(attributes,segmentUrl){var baseUrl=attributes.baseUrl,_attributes$initializ=attributes.initialization,initialization=void 0===_attributes$initializ?{}:_attributes$initializ,initSegment=urlTypeToSegment({baseUrl:baseUrl,source:initialization.sourceURL,range:initialization.range}),segment=urlTypeToSegment({baseUrl:baseUrl,source:segmentUrl.media,range:segmentUrl.mediaRange});return segment.map=initSegment,segment}(attributes,segmentUrlObject)}));return duration&&(segmentTimeInfo=parseByDuration(attributes)),segmentTimeline&&(segmentTimeInfo=parseByTimeline(attributes,segmentTimeline)),segmentTimeInfo.map((function(segmentTime,index){if(segmentUrlMap[index]){var segment=segmentUrlMap[index],timescale=attributes.timescale||1,presentationTimeOffset=attributes.presentationTimeOffset||0;return segment.timeline=segmentTime.timeline,segment.duration=segmentTime.duration,segment.number=segmentTime.number,segment.presentationTime=periodStart+(segmentTime.time-presentationTimeOffset)/timescale,segment}})).filter((function(segment){return segment}))},generateSegments=function(_ref){var segmentAttributes,segmentsFn,attributes=_ref.attributes,segmentInfo=_ref.segmentInfo;segmentInfo.template?(segmentsFn=segmentsFromTemplate,segmentAttributes=merge(attributes,segmentInfo.template)):segmentInfo.base?(segmentsFn=segmentsFromBase,segmentAttributes=merge(attributes,segmentInfo.base)):segmentInfo.list&&(segmentsFn=segmentsFromList,segmentAttributes=merge(attributes,segmentInfo.list));var segmentsInfo={attributes:attributes};if(!segmentsFn)return segmentsInfo;var segments=segmentsFn(segmentAttributes,segmentInfo.segmentTimeline);if(segmentAttributes.duration){var _segmentAttributes=segmentAttributes,duration=_segmentAttributes.duration,_segmentAttributes$ti=_segmentAttributes.timescale,timescale=void 0===_segmentAttributes$ti?1:_segmentAttributes$ti;segmentAttributes.duration=duration/timescale}else segments.length?segmentAttributes.duration=segments.reduce((function(max,segment){return Math.max(max,Math.ceil(segment.duration))}),0):segmentAttributes.duration=0;return segmentsInfo.attributes=segmentAttributes,segmentsInfo.segments=segments,segmentInfo.base&&segmentAttributes.indexRange&&(segmentsInfo.sidx=segments[0],segmentsInfo.segments=[]),segmentsInfo},findChildren=function(element,name){return from(element.childNodes).filter((function(_ref){return _ref.tagName===name}))},getContent=function(element){return element.textContent.trim()},parseDuration=function(str){var match=/P(?:(\d*)Y)?(?:(\d*)M)?(?:(\d*)D)?(?:T(?:(\d*)H)?(?:(\d*)M)?(?:([\d.]*)S)?)?/.exec(str);if(!match)return 0;var _match$slice=match.slice(1),year=_match$slice[0],month=_match$slice[1],day=_match$slice[2],hour=_match$slice[3],minute=_match$slice[4],second=_match$slice[5];return 31536e3*parseFloat(year||0)+2592e3*parseFloat(month||0)+86400*parseFloat(day||0)+3600*parseFloat(hour||0)+60*parseFloat(minute||0)+parseFloat(second||0)},parsers={mediaPresentationDuration:function(value){return parseDuration(value)},availabilityStartTime:function(value){return/^\d+-\d+-\d+T\d+:\d+:\d+(\.\d+)?$/.test(str=value)&&(str+="Z"),Date.parse(str)/1e3;var str},minimumUpdatePeriod:function(value){return parseDuration(value)},suggestedPresentationDelay:function(value){return parseDuration(value)},type:function(value){return value},timeShiftBufferDepth:function(value){return parseDuration(value)},start:function(value){return parseDuration(value)},width:function(value){return parseInt(value,10)},height:function(value){return parseInt(value,10)},bandwidth:function(value){return parseInt(value,10)},startNumber:function(value){return parseInt(value,10)},timescale:function(value){return parseInt(value,10)},presentationTimeOffset:function(value){return parseInt(value,10)},duration:function(value){var parsedValue=parseInt(value,10);return isNaN(parsedValue)?parseDuration(value):parsedValue},d:function(value){return parseInt(value,10)},t:function(value){return parseInt(value,10)},r:function(value){return parseInt(value,10)},DEFAULT:function(value){return value}},parseAttributes=function(el){return el&&el.attributes?from(el.attributes).reduce((function(a,e){var parseFn=parsers[e.name]||parsers.DEFAULT;return a[e.name]=parseFn(e.value),a}),{}):{}},keySystemsMap={"urn:uuid:1077efec-c0b2-4d02-ace3-3c1e52e2fb4b":"org.w3.clearkey","urn:uuid:edef8ba9-79d6-4ace-a3c8-27dcd51d21ed":"com.widevine.alpha","urn:uuid:9a04f079-9840-4286-ab92-e65be0885f95":"com.microsoft.playready","urn:uuid:f239e769-efa3-4850-9c16-a903c6932efb":"com.adobe.primetime"},buildBaseUrls=function(referenceUrls,baseUrlElements){return baseUrlElements.length?flatten(referenceUrls.map((function(reference){return baseUrlElements.map((function(baseUrlElement){return resolveUrl$1(reference,getContent(baseUrlElement))}))}))):referenceUrls},getSegmentInformation=function(adaptationSet){var segmentTemplate=findChildren(adaptationSet,"SegmentTemplate")[0],segmentList=findChildren(adaptationSet,"SegmentList")[0],segmentUrls=segmentList&&findChildren(segmentList,"SegmentURL").map((function(s){return merge({tag:"SegmentURL"},parseAttributes(s))})),segmentBase=findChildren(adaptationSet,"SegmentBase")[0],segmentTimelineParentNode=segmentList||segmentTemplate,segmentTimeline=segmentTimelineParentNode&&findChildren(segmentTimelineParentNode,"SegmentTimeline")[0],segmentInitializationParentNode=segmentList||segmentBase||segmentTemplate,segmentInitialization=segmentInitializationParentNode&&findChildren(segmentInitializationParentNode,"Initialization")[0],template=segmentTemplate&&parseAttributes(segmentTemplate);template&&segmentInitialization?template.initialization=segmentInitialization&&parseAttributes(segmentInitialization):template&&template.initialization&&(template.initialization={sourceURL:template.initialization});var segmentInfo={template:template,segmentTimeline:segmentTimeline&&findChildren(segmentTimeline,"S").map((function(s){return parseAttributes(s)})),list:segmentList&&merge(parseAttributes(segmentList),{segmentUrls:segmentUrls,initialization:parseAttributes(segmentInitialization)}),base:segmentBase&&merge(parseAttributes(segmentBase),{initialization:parseAttributes(segmentInitialization)})};return Object.keys(segmentInfo).forEach((function(key){segmentInfo[key]||delete segmentInfo[key]})),segmentInfo},toRepresentations=function(periodAttributes,periodBaseUrls,periodSegmentInfo){return function(adaptationSet){var service,adaptationSetAttributes=parseAttributes(adaptationSet),adaptationSetBaseUrls=buildBaseUrls(periodBaseUrls,findChildren(adaptationSet,"BaseURL")),role=findChildren(adaptationSet,"Role")[0],roleAttributes={role:parseAttributes(role)},attrs=merge(periodAttributes,adaptationSetAttributes,roleAttributes),accessibility=findChildren(adaptationSet,"Accessibility")[0],captionServices="urn:scte:dash:cc:cea-608:2015"===(service=parseAttributes(accessibility)).schemeIdUri?("string"!=typeof service.value?[]:service.value.split(";")).map((function(value){var channel,language;if(language=value,/^CC\d=/.test(value)){var _value$split=value.split("=");channel=_value$split[0],language=_value$split[1]}else/^CC\d$/.test(value)&&(channel=value);return{channel:channel,language:language}})):"urn:scte:dash:cc:cea-708:2015"===service.schemeIdUri?("string"!=typeof service.value?[]:service.value.split(";")).map((function(value){var flags={channel:void 0,language:void 0,aspectRatio:1,easyReader:0,"3D":0};if(/=/.test(value)){var _value$split2=value.split("="),channel=_value$split2[0],_value$split2$=_value$split2[1],opts=void 0===_value$split2$?"":_value$split2$;flags.channel=channel,flags.language=value,opts.split(",").forEach((function(opt){var _opt$split=opt.split(":"),name=_opt$split[0],val=_opt$split[1];"lang"===name?flags.language=val:"er"===name?flags.easyReader=Number(val):"war"===name?flags.aspectRatio=Number(val):"3D"===name&&(flags["3D"]=Number(val))}))}else flags.language=value;return flags.channel&&(flags.channel="SERVICE"+flags.channel),flags})):void 0;captionServices&&(attrs=merge(attrs,{captionServices:captionServices}));var label=findChildren(adaptationSet,"Label")[0];if(label&&label.childNodes.length){var labelVal=label.childNodes[0].nodeValue.trim();attrs=merge(attrs,{label:labelVal})}var contentProtection=findChildren(adaptationSet,"ContentProtection").reduce((function(acc,node){var attributes=parseAttributes(node);attributes.schemeIdUri&&(attributes.schemeIdUri=attributes.schemeIdUri.toLowerCase());var keySystem=keySystemsMap[attributes.schemeIdUri];if(keySystem){acc[keySystem]={attributes:attributes};var psshNode=findChildren(node,"cenc:pssh")[0];if(psshNode){var pssh=getContent(psshNode);acc[keySystem].pssh=pssh&&decodeB64ToUint8Array(pssh)}}return acc}),{});Object.keys(contentProtection).length&&(attrs=merge(attrs,{contentProtection:contentProtection}));var segmentInfo=getSegmentInformation(adaptationSet),representations=findChildren(adaptationSet,"Representation"),adaptationSetSegmentInfo=merge(periodSegmentInfo,segmentInfo);return flatten(representations.map(function(adaptationSetAttributes,adaptationSetBaseUrls,adaptationSetSegmentInfo){return function(representation){var repBaseUrlElements=findChildren(representation,"BaseURL"),repBaseUrls=buildBaseUrls(adaptationSetBaseUrls,repBaseUrlElements),attributes=merge(adaptationSetAttributes,parseAttributes(representation)),representationSegmentInfo=getSegmentInformation(representation);return repBaseUrls.map((function(baseUrl){return{segmentInfo:merge(adaptationSetSegmentInfo,representationSegmentInfo),attributes:merge(attributes,{baseUrl:baseUrl})}}))}}(attrs,adaptationSetBaseUrls,adaptationSetSegmentInfo)))}},toAdaptationSets=function(mpdAttributes,mpdBaseUrls){return function(period,index){var periodBaseUrls=buildBaseUrls(mpdBaseUrls,findChildren(period.node,"BaseURL")),periodAttributes=merge(mpdAttributes,{periodStart:period.attributes.start});"number"==typeof period.attributes.duration&&(periodAttributes.periodDuration=period.attributes.duration);var adaptationSets=findChildren(period.node,"AdaptationSet"),periodSegmentInfo=getSegmentInformation(period.node);return flatten(adaptationSets.map(toRepresentations(periodAttributes,periodBaseUrls,periodSegmentInfo)))}},stringToMpdXml=function(manifestString){if(""===manifestString)throw new Error(errors_DASH_EMPTY_MANIFEST);var xml,mpd,parser=new DOMParser;try{mpd=(xml=parser.parseFromString(manifestString,"application/xml"))&&"MPD"===xml.documentElement.tagName?xml.documentElement:null}catch(e){}if(!mpd||mpd&&mpd.getElementsByTagName("parsererror").length>0)throw new Error(errors_DASH_INVALID_XML);return mpd},parse=function(manifestString,options){void 0===options&&(options={});var parsedManifestInfo=function(mpd,options){void 0===options&&(options={});var _options=options,_options$manifestUri=_options.manifestUri,manifestUri=void 0===_options$manifestUri?"":_options$manifestUri,_options$NOW=_options.NOW,NOW=void 0===_options$NOW?Date.now():_options$NOW,_options$clientOffset=_options.clientOffset,clientOffset=void 0===_options$clientOffset?0:_options$clientOffset,periodNodes=findChildren(mpd,"Period");if(!periodNodes.length)throw new Error(errors_INVALID_NUMBER_OF_PERIOD);var locations=findChildren(mpd,"Location"),mpdAttributes=parseAttributes(mpd),mpdBaseUrls=buildBaseUrls([manifestUri],findChildren(mpd,"BaseURL"));mpdAttributes.type=mpdAttributes.type||"static",mpdAttributes.sourceDuration=mpdAttributes.mediaPresentationDuration||0,mpdAttributes.NOW=NOW,mpdAttributes.clientOffset=clientOffset,locations.length&&(mpdAttributes.locations=locations.map(getContent));var periods=[];return periodNodes.forEach((function(node,index){var attributes=parseAttributes(node),priorPeriod=periods[index-1];attributes.start=function(_ref){var attributes=_ref.attributes,priorPeriodAttributes=_ref.priorPeriodAttributes,mpdType=_ref.mpdType;return"number"==typeof attributes.start?attributes.start:priorPeriodAttributes&&"number"==typeof priorPeriodAttributes.start&&"number"==typeof priorPeriodAttributes.duration?priorPeriodAttributes.start+priorPeriodAttributes.duration:priorPeriodAttributes||"static"!==mpdType?null:0}({attributes:attributes,priorPeriodAttributes:priorPeriod?priorPeriod.attributes:null,mpdType:mpdAttributes.type}),periods.push({node:node,attributes:attributes})})),{locations:mpdAttributes.locations,representationInfo:flatten(periods.map(toAdaptationSets(mpdAttributes,mpdBaseUrls)))}}(stringToMpdXml(manifestString),options),playlists=parsedManifestInfo.representationInfo.map(generateSegments);return toM3u8({dashPlaylists:playlists,locations:parsedManifestInfo.locations,sidxMapping:options.sidxMapping,previousManifest:options.previousManifest})},parseUTCTiming=function(manifestString){return function(mpd){var UTCTimingNode=findChildren(mpd,"UTCTiming")[0];if(!UTCTimingNode)return null;var attributes=parseAttributes(UTCTimingNode);switch(attributes.schemeIdUri){case"urn:mpeg:dash:utc:http-head:2014":case"urn:mpeg:dash:utc:http-head:2012":attributes.method="HEAD";break;case"urn:mpeg:dash:utc:http-xsdate:2014":case"urn:mpeg:dash:utc:http-iso:2014":case"urn:mpeg:dash:utc:http-xsdate:2012":case"urn:mpeg:dash:utc:http-iso:2012":attributes.method="GET";break;case"urn:mpeg:dash:utc:direct:2014":case"urn:mpeg:dash:utc:direct:2012":attributes.method="DIRECT",attributes.value=Date.parse(attributes.value);break;default:throw new Error(errors_UNSUPPORTED_UTC_TIMING_SCHEME)}return attributes}(stringToMpdXml(manifestString))},MAX_UINT32=Math.pow(2,32),getUint64=function(uint8){var value,dv=new DataView(uint8.buffer,uint8.byteOffset,uint8.byteLength);return dv.getBigUint64?(value=dv.getBigUint64(0))<Number.MAX_SAFE_INTEGER?Number(value):value:dv.getUint32(0)*MAX_UINT32+dv.getUint32(4)},parseSidx_1=function(data){var view=new DataView(data.buffer,data.byteOffset,data.byteLength),result={version:data[0],flags:new Uint8Array(data.subarray(1,4)),references:[],referenceId:view.getUint32(4),timescale:view.getUint32(8)},i=12;0===result.version?(result.earliestPresentationTime=view.getUint32(i),result.firstOffset=view.getUint32(i+4),i+=8):(result.earliestPresentationTime=getUint64(data.subarray(i)),result.firstOffset=getUint64(data.subarray(i+8)),i+=16),i+=2;var referenceCount=view.getUint16(i);for(i+=2;referenceCount>0;i+=12,referenceCount--)result.references.push({referenceType:(128&data[i])>>>7,referencedSize:2147483647&view.getUint32(i),subsegmentDuration:view.getUint32(i+4),startsWithSap:!!(128&data[i+8]),sapType:(112&data[i+8])>>>4,sapDeltaTime:268435455&view.getUint32(i+8)});return result},ID3=toUint8([73,68,51]),getId3Offset=function getId3Offset(bytes,offset){return void 0===offset&&(offset=0),(bytes=toUint8(bytes)).length-offset<10||!bytesMatch(bytes,ID3,{offset:offset})?offset:(offset+=function(bytes,offset){void 0===offset&&(offset=0);var flags=(bytes=toUint8(bytes))[offset+5],returnSize=bytes[offset+6]<<21|bytes[offset+7]<<14|bytes[offset+8]<<7|bytes[offset+9];return(16&flags)>>4?returnSize+20:returnSize+10}(bytes,offset),getId3Offset(bytes,offset))},normalizePath$1=function(path){return"string"==typeof path?stringToBytes(path):path},findBox=function findBox(bytes,paths,complete){void 0===complete&&(complete=!1),paths=function(paths){return Array.isArray(paths)?paths.map((function(p){return normalizePath$1(p)})):[normalizePath$1(paths)]}(paths),bytes=toUint8(bytes);var results=[];if(!paths.length)return results;for(var i=0;i<bytes.length;){var size=(bytes[i]<<24|bytes[i+1]<<16|bytes[i+2]<<8|bytes[i+3])>>>0,type=bytes.subarray(i+4,i+8);if(0===size)break;var end=i+size;if(end>bytes.length){if(complete)break;end=bytes.length}var data=bytes.subarray(i+8,end);bytesMatch(type,paths[0])&&(1===paths.length?results.push(data):results.push.apply(results,findBox(data,paths.slice(1),complete))),i=end}return results},EBML_TAGS={EBML:toUint8([26,69,223,163]),DocType:toUint8([66,130]),Segment:toUint8([24,83,128,103]),SegmentInfo:toUint8([21,73,169,102]),Tracks:toUint8([22,84,174,107]),Track:toUint8([174]),TrackNumber:toUint8([215]),DefaultDuration:toUint8([35,227,131]),TrackEntry:toUint8([174]),TrackType:toUint8([131]),FlagDefault:toUint8([136]),CodecID:toUint8([134]),CodecPrivate:toUint8([99,162]),VideoTrack:toUint8([224]),AudioTrack:toUint8([225]),Cluster:toUint8([31,67,182,117]),Timestamp:toUint8([231]),TimestampScale:toUint8([42,215,177]),BlockGroup:toUint8([160]),BlockDuration:toUint8([155]),Block:toUint8([161]),SimpleBlock:toUint8([163])},LENGTH_TABLE=[128,64,32,16,8,4,2,1],getvint=function(bytes,offset,removeLength,signed){void 0===removeLength&&(removeLength=!0),void 0===signed&&(signed=!1);var length=function(_byte){for(var len=1,i=0;i<LENGTH_TABLE.length&&!(_byte&LENGTH_TABLE[i]);i++)len++;return len}(bytes[offset]),valueBytes=bytes.subarray(offset,offset+length);return removeLength&&((valueBytes=Array.prototype.slice.call(bytes,offset,offset+length))[0]^=LENGTH_TABLE[length-1]),{length:length,value:bytesToNumber(valueBytes,{signed:signed}),bytes:valueBytes}},normalizePath=function normalizePath(path){return"string"==typeof path?path.match(/.{1,2}/g).map((function(p){return normalizePath(p)})):"number"==typeof path?numberToBytes(path):path},getInfinityDataSize=function getInfinityDataSize(id,bytes,offset){if(offset>=bytes.length)return bytes.length;var innerid=getvint(bytes,offset,!1);if(bytesMatch(id.bytes,innerid.bytes))return offset;var dataHeader=getvint(bytes,offset+innerid.length);return getInfinityDataSize(id,bytes,offset+dataHeader.length+dataHeader.value+innerid.length)},findEbml=function findEbml(bytes,paths){paths=function(paths){return Array.isArray(paths)?paths.map((function(p){return normalizePath(p)})):[normalizePath(paths)]}(paths),bytes=toUint8(bytes);var results=[];if(!paths.length)return results;for(var i=0;i<bytes.length;){var id=getvint(bytes,i,!1),dataHeader=getvint(bytes,i+id.length),dataStart=i+id.length+dataHeader.length;127===dataHeader.value&&(dataHeader.value=getInfinityDataSize(id,bytes,dataStart),dataHeader.value!==bytes.length&&(dataHeader.value-=dataStart));var dataEnd=dataStart+dataHeader.value>bytes.length?bytes.length:dataStart+dataHeader.value,data=bytes.subarray(dataStart,dataEnd);bytesMatch(paths[0],id.bytes)&&(1===paths.length?results.push(data):results=results.concat(findEbml(data,paths.slice(1)))),i+=id.length+dataHeader.length+data.length}return results},NAL_TYPE_ONE=toUint8([0,0,0,1]),NAL_TYPE_TWO=toUint8([0,0,1]),EMULATION_PREVENTION=toUint8([0,0,3]),discardEmulationPreventionBytes=function(bytes){for(var positions=[],i=1;i<bytes.length-2;)bytesMatch(bytes.subarray(i,i+3),EMULATION_PREVENTION)&&(positions.push(i+2),i++),i++;if(0===positions.length)return bytes;var newLength=bytes.length-positions.length,newData=new Uint8Array(newLength),sourceIndex=0;for(i=0;i<newLength;sourceIndex++,i++)sourceIndex===positions[0]&&(sourceIndex++,positions.shift()),newData[i]=bytes[sourceIndex];return newData},findNal=function(bytes,dataType,types,nalLimit){void 0===nalLimit&&(nalLimit=1/0),bytes=toUint8(bytes),types=[].concat(types);for(var nalStart,i=0,nalsFound=0;i<bytes.length&&(nalsFound<nalLimit||nalStart);){var nalOffset=void 0;if(bytesMatch(bytes.subarray(i),NAL_TYPE_ONE)?nalOffset=4:bytesMatch(bytes.subarray(i),NAL_TYPE_TWO)&&(nalOffset=3),nalOffset){if(nalsFound++,nalStart)return discardEmulationPreventionBytes(bytes.subarray(nalStart,i));var nalType=void 0;"h264"===dataType?nalType=31&bytes[i+nalOffset]:"h265"===dataType&&(nalType=bytes[i+nalOffset]>>1&63),-1!==types.indexOf(nalType)&&(nalStart=i+nalOffset),i+=nalOffset+("h264"===dataType?1:2)}else i++}return bytes.subarray(0,0)},CONSTANTS={webm:toUint8([119,101,98,109]),matroska:toUint8([109,97,116,114,111,115,107,97]),flac:toUint8([102,76,97,67]),ogg:toUint8([79,103,103,83]),ac3:toUint8([11,119]),riff:toUint8([82,73,70,70]),avi:toUint8([65,86,73]),wav:toUint8([87,65,86,69]),"3gp":toUint8([102,116,121,112,51,103]),mp4:toUint8([102,116,121,112]),fmp4:toUint8([115,116,121,112]),mov:toUint8([102,116,121,112,113,116]),moov:toUint8([109,111,111,118]),moof:toUint8([109,111,111,102])},_isLikely={aac:function(bytes){var offset=getId3Offset(bytes);return bytesMatch(bytes,[255,16],{offset:offset,mask:[255,22]})},mp3:function(bytes){var offset=getId3Offset(bytes);return bytesMatch(bytes,[255,2],{offset:offset,mask:[255,6]})},webm:function(bytes){var docType=findEbml(bytes,[EBML_TAGS.EBML,EBML_TAGS.DocType])[0];return bytesMatch(docType,CONSTANTS.webm)},mkv:function(bytes){var docType=findEbml(bytes,[EBML_TAGS.EBML,EBML_TAGS.DocType])[0];return bytesMatch(docType,CONSTANTS.matroska)},mp4:function(bytes){return!_isLikely["3gp"](bytes)&&!_isLikely.mov(bytes)&&(!(!bytesMatch(bytes,CONSTANTS.mp4,{offset:4})&&!bytesMatch(bytes,CONSTANTS.fmp4,{offset:4}))||(!(!bytesMatch(bytes,CONSTANTS.moof,{offset:4})&&!bytesMatch(bytes,CONSTANTS.moov,{offset:4}))||void 0))},mov:function(bytes){return bytesMatch(bytes,CONSTANTS.mov,{offset:4})},"3gp":function(bytes){return bytesMatch(bytes,CONSTANTS["3gp"],{offset:4})},ac3:function(bytes){var offset=getId3Offset(bytes);return bytesMatch(bytes,CONSTANTS.ac3,{offset:offset})},ts:function(bytes){if(bytes.length<189&&bytes.length>=1)return 71===bytes[0];for(var i=0;i+188<bytes.length&&i<188;){if(71===bytes[i]&&71===bytes[i+188])return!0;i+=1}return!1},flac:function(bytes){var offset=getId3Offset(bytes);return bytesMatch(bytes,CONSTANTS.flac,{offset:offset})},ogg:function(bytes){return bytesMatch(bytes,CONSTANTS.ogg)},avi:function(bytes){return bytesMatch(bytes,CONSTANTS.riff)&&bytesMatch(bytes,CONSTANTS.avi,{offset:8})},wav:function(bytes){return bytesMatch(bytes,CONSTANTS.riff)&&bytesMatch(bytes,CONSTANTS.wav,{offset:8})},h264:function(bytes){return function(bytes,type,nalLimit){return findNal(bytes,"h264",type,nalLimit)}(bytes,7,3).length},h265:function(bytes){return function(bytes,type,nalLimit){return findNal(bytes,"h265",type,nalLimit)}(bytes,[32,33],3).length}},isLikelyTypes=Object.keys(_isLikely).filter((function(t){return"ts"!==t&&"h264"!==t&&"h265"!==t})).concat(["ts","h264","h265"]);isLikelyTypes.forEach((function(type){var isLikelyFn=_isLikely[type];_isLikely[type]=function(bytes){return isLikelyFn(toUint8(bytes))}}));var secondsToVideoTs,secondsToAudioTs,videoTsToSeconds,audioTsToSeconds,isLikely=_isLikely,detectContainerForBytes=function(bytes){bytes=toUint8(bytes);for(var i=0;i<isLikelyTypes.length;i++){var type=isLikelyTypes[i];if(isLikely[type](bytes))return type}return""};secondsToVideoTs=function(seconds){return 9e4*seconds},secondsToAudioTs=function(seconds,sampleRate){return seconds*sampleRate},videoTsToSeconds=function(timestamp){return timestamp/9e4},audioTsToSeconds=function(timestamp,sampleRate){return timestamp/sampleRate};var clock_1=9e4,resolveUrl=function(baseUrl,relativeUrl){if(/^[a-z]+:/i.test(relativeUrl))return relativeUrl;/^data:/.test(baseUrl)&&(baseUrl=window.location&&window.location.href||"");var nativeURL="function"==typeof window.URL,protocolLess=/^\/\//.test(baseUrl),removeLocation=!window.location&&!/\/\//i.test(baseUrl);if(nativeURL?baseUrl=new window.URL(baseUrl,window.location||"http://example.com"):/\/\//i.test(baseUrl)||(baseUrl=urlToolkit.buildAbsoluteURL(window.location&&window.location.href||"",baseUrl)),nativeURL){var newUrl=new URL(relativeUrl,baseUrl);return removeLocation?newUrl.href.slice("http://example.com".length):protocolLess?newUrl.href.slice(newUrl.protocol.length):newUrl.href}return urlToolkit.buildAbsoluteURL(baseUrl,relativeUrl)},resolveManifestRedirect=function(handleManifestRedirect,url,req){return handleManifestRedirect&&req&&req.responseURL&&url!==req.responseURL?req.responseURL:url},logger=function(source){return videojs.log.debug?videojs.log.debug.bind(videojs,"VHS:",source+" >"):function(){}},filterRanges=function(timeRanges,predicate){var i,results=[];if(timeRanges&&timeRanges.length)for(i=0;i<timeRanges.length;i++)predicate(timeRanges.start(i),timeRanges.end(i))&&results.push([timeRanges.start(i),timeRanges.end(i)]);return videojs.createTimeRanges(results)},findRange=function(buffered,time){return filterRanges(buffered,(function(start,end){return start-.1<=time&&end+.1>=time}))},findNextRange=function(timeRanges,time){return filterRanges(timeRanges,(function(start){return start-.03333333333333333>=time}))},printableRange=function(range){var strArr=[];if(!range||!range.length)return"";for(var i=0;i<range.length;i++)strArr.push(range.start(i)+" => "+range.end(i));return strArr.join(", ")},timeRangesToArray=function(timeRanges){for(var timeRangesList=[],i=0;i<timeRanges.length;i++)timeRangesList.push({start:timeRanges.start(i),end:timeRanges.end(i)});return timeRangesList},lastBufferedEnd=function(a){if(a&&a.length&&a.end)return a.end(a.length-1)},timeAheadOf=function(range,startTime){var time=0;if(!range||!range.length)return time;for(var i=0;i<range.length;i++){var start=range.start(i),end=range.end(i);startTime>end||(time+=startTime>start&&startTime<=end?end-startTime:end-start)}return time},createTimeRange=videojs.createTimeRange,segmentDurationWithParts=function(playlist,segment){if(!segment.preload)return segment.duration;var result=0;return(segment.parts||[]).forEach((function(p){result+=p.duration})),(segment.preloadHints||[]).forEach((function(p){"PART"===p.type&&(result+=playlist.partTargetDuration)})),result},getPartsAndSegments=function(playlist){return(playlist.segments||[]).reduce((function(acc,segment,si){return segment.parts?segment.parts.forEach((function(part,pi){acc.push({duration:part.duration,segmentIndex:si,partIndex:pi,part:part,segment:segment})})):acc.push({duration:segment.duration,segmentIndex:si,partIndex:null,segment:segment,part:null}),acc}),[])},getLastParts=function(media){var lastSegment=media.segments&&media.segments.length&&media.segments[media.segments.length-1];return lastSegment&&lastSegment.parts||[]},getKnownPartCount=function(_ref){var preloadSegment=_ref.preloadSegment;if(preloadSegment){var parts=preloadSegment.parts,partCount=(preloadSegment.preloadHints||[]).reduce((function(count,hint){return count+("PART"===hint.type?1:0)}),0);return partCount+=parts&&parts.length?parts.length:0}},liveEdgeDelay=function(master,media){if(media.endList)return 0;if(master&&master.suggestedPresentationDelay)return master.suggestedPresentationDelay;var hasParts=getLastParts(media).length>0;return hasParts&&media.serverControl&&media.serverControl.partHoldBack?media.serverControl.partHoldBack:hasParts&&media.partTargetDuration?3*media.partTargetDuration:media.serverControl&&media.serverControl.holdBack?media.serverControl.holdBack:media.targetDuration?3*media.targetDuration:0},intervalDuration=function(playlist,endSequence,expired){if(void 0===endSequence&&(endSequence=playlist.mediaSequence+playlist.segments.length),endSequence<playlist.mediaSequence)return 0;var backward=function(playlist,endSequence){var result=0,i=endSequence-playlist.mediaSequence,segment=playlist.segments[i];if(segment){if(void 0!==segment.start)return{result:segment.start,precise:!0};if(void 0!==segment.end)return{result:segment.end-segment.duration,precise:!0}}for(;i--;){if(void 0!==(segment=playlist.segments[i]).end)return{result:result+segment.end,precise:!0};if(result+=segmentDurationWithParts(playlist,segment),void 0!==segment.start)return{result:result+segment.start,precise:!0}}return{result:result,precise:!1}}(playlist,endSequence);if(backward.precise)return backward.result;var forward=function(playlist,endSequence){for(var segment,result=0,i=endSequence-playlist.mediaSequence;i<playlist.segments.length;i++){if(void 0!==(segment=playlist.segments[i]).start)return{result:segment.start-result,precise:!0};if(result+=segmentDurationWithParts(playlist,segment),void 0!==segment.end)return{result:segment.end-result,precise:!0}}return{result:-1,precise:!1}}(playlist,endSequence);return forward.precise?forward.result:backward.result+expired},duration=function(playlist,endSequence,expired){if(!playlist)return 0;if("number"!=typeof expired&&(expired=0),void 0===endSequence){if(playlist.totalDuration)return playlist.totalDuration;if(!playlist.endList)return window.Infinity}return intervalDuration(playlist,endSequence,expired)},sumDurations=function(_ref2){var defaultDuration=_ref2.defaultDuration,durationList=_ref2.durationList,startIndex=_ref2.startIndex,endIndex=_ref2.endIndex,durations=0;if(startIndex>endIndex){var _ref3=[endIndex,startIndex];startIndex=_ref3[0],endIndex=_ref3[1]}if(startIndex<0){for(var i=startIndex;i<Math.min(0,endIndex);i++)durations+=defaultDuration;startIndex=0}for(var _i=startIndex;_i<endIndex;_i++)durations+=durationList[_i].duration;return durations},playlistEnd=function(playlist,expired,useSafeLiveEnd,liveEdgePadding){if(!playlist||!playlist.segments)return null;if(playlist.endList)return duration(playlist);if(null===expired)return null;expired=expired||0;var lastSegmentEndTime=intervalDuration(playlist,playlist.mediaSequence+playlist.segments.length,expired);return useSafeLiveEnd&&(lastSegmentEndTime-=liveEdgePadding="number"==typeof liveEdgePadding?liveEdgePadding:liveEdgeDelay(null,playlist)),Math.max(0,lastSegmentEndTime)},isBlacklisted=function(playlist){return playlist.excludeUntil&&playlist.excludeUntil>Date.now()},isIncompatible=function(playlist){return playlist.excludeUntil&&playlist.excludeUntil===1/0},isEnabled=function(playlist){var blacklisted=isBlacklisted(playlist);return!playlist.disabled&&!blacklisted},hasAttribute=function(attr,playlist){return playlist.attributes&&playlist.attributes[attr]},isLowestEnabledRendition=function(master,media){if(1===master.playlists.length)return!0;var currentBandwidth=media.attributes.BANDWIDTH||Number.MAX_VALUE;return 0===master.playlists.filter((function(playlist){return!!isEnabled(playlist)&&(playlist.attributes.BANDWIDTH||0)<currentBandwidth})).length},playlistMatch=function(a,b){return!(!a&&!b||!a&&b||a&&!b)&&(a===b||(!(!a.id||!b.id||a.id!==b.id)||(!(!a.resolvedUri||!b.resolvedUri||a.resolvedUri!==b.resolvedUri)||!(!a.uri||!b.uri||a.uri!==b.uri))))},someAudioVariant=function(master,callback){var AUDIO=master&&master.mediaGroups&&master.mediaGroups.AUDIO||{},found=!1;for(var groupName in AUDIO){for(var label in AUDIO[groupName])if(found=callback(AUDIO[groupName][label]))break;if(found)break}return!!found},isAudioOnly=function(master){if(!master||!master.playlists||!master.playlists.length)return someAudioVariant(master,(function(variant){return variant.playlists&&variant.playlists.length||variant.uri}));for(var _loop=function(i){var playlist=master.playlists[i],CODECS=playlist.attributes&&playlist.attributes.CODECS;return CODECS&&CODECS.split(",").every((function(c){return isAudioCodec(c)}))||someAudioVariant(master,(function(variant){return playlistMatch(playlist,variant)}))?"continue":{v:!1}},i=0;i<master.playlists.length;i++){var _ret=_loop(i);if("continue"!==_ret&&"object"==typeof _ret)return _ret.v}return!0},Playlist={liveEdgeDelay:liveEdgeDelay,duration:duration,seekable:function(playlist,expired,liveEdgePadding){var seekableStart=expired||0,seekableEnd=playlistEnd(playlist,expired,!0,liveEdgePadding);return null===seekableEnd?createTimeRange():createTimeRange(seekableStart,seekableEnd)},getMediaInfoForTime:function(_ref4){for(var playlist=_ref4.playlist,currentTime=_ref4.currentTime,startingSegmentIndex=_ref4.startingSegmentIndex,startingPartIndex=_ref4.startingPartIndex,startTime=_ref4.startTime,experimentalExactManifestTimings=_ref4.experimentalExactManifestTimings,time=currentTime-startTime,partsAndSegments=getPartsAndSegments(playlist),startIndex=0,i=0;i<partsAndSegments.length;i++){var partAndSegment=partsAndSegments[i];if(startingSegmentIndex===partAndSegment.segmentIndex&&("number"!=typeof startingPartIndex||"number"!=typeof partAndSegment.partIndex||startingPartIndex===partAndSegment.partIndex)){startIndex=i;break}}if(time<0){if(startIndex>0)for(var _i2=startIndex-1;_i2>=0;_i2--){var _partAndSegment=partsAndSegments[_i2];if(time+=_partAndSegment.duration,experimentalExactManifestTimings){if(time<0)continue}else if(time+.03333333333333333<=0)continue;return{partIndex:_partAndSegment.partIndex,segmentIndex:_partAndSegment.segmentIndex,startTime:startTime-sumDurations({defaultDuration:playlist.targetDuration,durationList:partsAndSegments,startIndex:startIndex,endIndex:_i2})}}return{partIndex:partsAndSegments[0]&&partsAndSegments[0].partIndex||null,segmentIndex:partsAndSegments[0]&&partsAndSegments[0].segmentIndex||0,startTime:currentTime}}if(startIndex<0){for(var _i3=startIndex;_i3<0;_i3++)if((time-=playlist.targetDuration)<0)return{partIndex:partsAndSegments[0]&&partsAndSegments[0].partIndex||null,segmentIndex:partsAndSegments[0]&&partsAndSegments[0].segmentIndex||0,startTime:currentTime};startIndex=0}for(var _i4=startIndex;_i4<partsAndSegments.length;_i4++){var _partAndSegment2=partsAndSegments[_i4];if(time-=_partAndSegment2.duration,experimentalExactManifestTimings){if(time>0)continue}else if(time-.03333333333333333>=0)continue;return{partIndex:_partAndSegment2.partIndex,segmentIndex:_partAndSegment2.segmentIndex,startTime:startTime+sumDurations({defaultDuration:playlist.targetDuration,durationList:partsAndSegments,startIndex:startIndex,endIndex:_i4})}}return{segmentIndex:partsAndSegments[partsAndSegments.length-1].segmentIndex,partIndex:partsAndSegments[partsAndSegments.length-1].partIndex,startTime:currentTime}},isEnabled:isEnabled,isDisabled:function(playlist){return playlist.disabled},isBlacklisted:isBlacklisted,isIncompatible:isIncompatible,playlistEnd:playlistEnd,isAes:function(media){for(var i=0;i<media.segments.length;i++)if(media.segments[i].key)return!0;return!1},hasAttribute:hasAttribute,estimateSegmentRequestTime:function(segmentDuration,bandwidth,playlist,bytesReceived){return void 0===bytesReceived&&(bytesReceived=0),hasAttribute("BANDWIDTH",playlist)?(segmentDuration*playlist.attributes.BANDWIDTH-8*bytesReceived)/bandwidth:NaN},isLowestEnabledRendition:isLowestEnabledRendition,isAudioOnly:isAudioOnly,playlistMatch:playlistMatch,segmentDurationWithParts:segmentDurationWithParts},log=videojs.log,createPlaylistID=function(index,uri){return index+"-"+uri},forEachMediaGroup=function(master,callback){master.mediaGroups&&["AUDIO","SUBTITLES"].forEach((function(mediaType){if(master.mediaGroups[mediaType])for(var groupKey in master.mediaGroups[mediaType])for(var labelKey in master.mediaGroups[mediaType][groupKey]){var mediaProperties=master.mediaGroups[mediaType][groupKey][labelKey];callback(mediaProperties,mediaType,groupKey,labelKey)}}))},setupMediaPlaylist=function(_ref2){var playlist=_ref2.playlist,uri=_ref2.uri,id=_ref2.id;playlist.id=id,playlist.playlistErrors_=0,uri&&(playlist.uri=uri),playlist.attributes=playlist.attributes||{}},addPropertiesToMaster=function(master,uri){master.uri=uri;for(var i=0;i<master.playlists.length;i++)if(!master.playlists[i].uri){var phonyUri="placeholder-uri-"+i;master.playlists[i].uri=phonyUri}var audioOnlyMaster=isAudioOnly(master);forEachMediaGroup(master,(function(properties,mediaType,groupKey,labelKey){var groupId="placeholder-uri-"+mediaType+"-"+groupKey+"-"+labelKey;if(!properties.playlists||!properties.playlists.length){if(audioOnlyMaster&&"AUDIO"===mediaType&&!properties.uri)for(var _i=0;_i<master.playlists.length;_i++){var p=master.playlists[_i];if(p.attributes&&p.attributes.AUDIO&&p.attributes.AUDIO===groupKey)return}properties.playlists=[_extends_1({},properties)]}properties.playlists.forEach((function(p,i){var id=createPlaylistID(i,groupId);p.uri?p.resolvedUri=p.resolvedUri||resolveUrl(master.uri,p.uri):(p.uri=0===i?groupId:id,p.resolvedUri=p.uri),p.id=p.id||id,p.attributes=p.attributes||{},master.playlists[p.id]=p,master.playlists[p.uri]=p}))})),function(master){for(var i=master.playlists.length;i--;){var playlist=master.playlists[i];setupMediaPlaylist({playlist:playlist,id:createPlaylistID(i,playlist.uri)}),playlist.resolvedUri=resolveUrl(master.uri,playlist.uri),master.playlists[playlist.id]=playlist,master.playlists[playlist.uri]=playlist,playlist.attributes.BANDWIDTH||log.warn("Invalid playlist STREAM-INF detected. Missing BANDWIDTH attribute.")}}(master),function(master){forEachMediaGroup(master,(function(properties){properties.uri&&(properties.resolvedUri=resolveUrl(master.uri,properties.uri))}))}(master)},mergeOptions$2=videojs.mergeOptions,EventTarget$1=videojs.EventTarget,updateSegment=function(a,b){if(!a)return b;var result=mergeOptions$2(a,b);if(a.preloadHints&&!b.preloadHints&&delete result.preloadHints,a.parts&&!b.parts)delete result.parts;else if(a.parts&&b.parts)for(var i=0;i<b.parts.length;i++)a.parts&&a.parts[i]&&(result.parts[i]=mergeOptions$2(a.parts[i],b.parts[i]));return!a.skipped&&b.skipped&&(result.skipped=!1),a.preload&&!b.preload&&(result.preload=!1),result},resolveSegmentUris=function(segment,baseUri){!segment.resolvedUri&&segment.uri&&(segment.resolvedUri=resolveUrl(baseUri,segment.uri)),segment.key&&!segment.key.resolvedUri&&(segment.key.resolvedUri=resolveUrl(baseUri,segment.key.uri)),segment.map&&!segment.map.resolvedUri&&(segment.map.resolvedUri=resolveUrl(baseUri,segment.map.uri)),segment.map&&segment.map.key&&!segment.map.key.resolvedUri&&(segment.map.key.resolvedUri=resolveUrl(baseUri,segment.map.key.uri)),segment.parts&&segment.parts.length&&segment.parts.forEach((function(p){p.resolvedUri||(p.resolvedUri=resolveUrl(baseUri,p.uri))})),segment.preloadHints&&segment.preloadHints.length&&segment.preloadHints.forEach((function(p){p.resolvedUri||(p.resolvedUri=resolveUrl(baseUri,p.uri))}))},getAllSegments=function(media){var segments=media.segments||[],preloadSegment=media.preloadSegment;if(preloadSegment&&preloadSegment.parts&&preloadSegment.parts.length){if(preloadSegment.preloadHints)for(var i=0;i<preloadSegment.preloadHints.length;i++)if("MAP"===preloadSegment.preloadHints[i].type)return segments;preloadSegment.duration=media.targetDuration,preloadSegment.preload=!0,segments.push(preloadSegment)}return segments},isPlaylistUnchanged=function(a,b){return a===b||a.segments&&b.segments&&a.segments.length===b.segments.length&&a.endList===b.endList&&a.mediaSequence===b.mediaSequence&&a.preloadSegment===b.preloadSegment},updateMaster$1=function(master,newMedia,unchangedCheck){void 0===unchangedCheck&&(unchangedCheck=isPlaylistUnchanged);var result=mergeOptions$2(master,{}),oldMedia=result.playlists[newMedia.id];if(!oldMedia)return null;if(unchangedCheck(oldMedia,newMedia))return null;newMedia.segments=getAllSegments(newMedia);var mergedPlaylist=mergeOptions$2(oldMedia,newMedia);if(mergedPlaylist.preloadSegment&&!newMedia.preloadSegment&&delete mergedPlaylist.preloadSegment,oldMedia.segments){if(newMedia.skip){newMedia.segments=newMedia.segments||[];for(var i=0;i<newMedia.skip.skippedSegments;i++)newMedia.segments.unshift({skipped:!0})}mergedPlaylist.segments=function(original,update,offset){var oldSegments=original.slice(),newSegments=update.slice();offset=offset||0;for(var currentMap,result=[],newIndex=0;newIndex<newSegments.length;newIndex++){var oldSegment=oldSegments[newIndex+offset],newSegment=newSegments[newIndex];oldSegment?(currentMap=oldSegment.map||currentMap,result.push(updateSegment(oldSegment,newSegment))):(currentMap&&!newSegment.map&&(newSegment.map=currentMap),result.push(newSegment))}return result}(oldMedia.segments,newMedia.segments,newMedia.mediaSequence-oldMedia.mediaSequence)}mergedPlaylist.segments.forEach((function(segment){resolveSegmentUris(segment,mergedPlaylist.resolvedUri)}));for(var _i=0;_i<result.playlists.length;_i++)result.playlists[_i].id===newMedia.id&&(result.playlists[_i]=mergedPlaylist);return result.playlists[newMedia.id]=mergedPlaylist,result.playlists[newMedia.uri]=mergedPlaylist,forEachMediaGroup(master,(function(properties,mediaType,groupKey,labelKey){if(properties.playlists)for(var _i2=0;_i2<properties.playlists.length;_i2++)newMedia.id===properties.playlists[_i2].id&&(properties.playlists[_i2]=mergedPlaylist)})),result},refreshDelay=function(media,update){var segments=media.segments||[],lastSegment=segments[segments.length-1],lastPart=lastSegment&&lastSegment.parts&&lastSegment.parts[lastSegment.parts.length-1],lastDuration=lastPart&&lastPart.duration||lastSegment&&lastSegment.duration;return update&&lastDuration?1e3*lastDuration:500*(media.partTargetDuration||media.targetDuration||10)},PlaylistLoader=function(_EventTarget){function PlaylistLoader(src,vhs,options){var _this;if(void 0===options&&(options={}),_this=_EventTarget.call(this)||this,!src)throw new Error("A non-empty playlist URL or object is required");_this.logger_=logger("PlaylistLoader");var _options=options,_options$withCredenti=_options.withCredentials,withCredentials=void 0!==_options$withCredenti&&_options$withCredenti,_options$handleManife=_options.handleManifestRedirects,handleManifestRedirects=void 0!==_options$handleManife&&_options$handleManife;_this.src=src,_this.vhs_=vhs,_this.withCredentials=withCredentials,_this.handleManifestRedirects=handleManifestRedirects;var vhsOptions=vhs.options_;return _this.customTagParsers=vhsOptions&&vhsOptions.customTagParsers||[],_this.customTagMappers=vhsOptions&&vhsOptions.customTagMappers||[],_this.experimentalLLHLS=vhsOptions&&vhsOptions.experimentalLLHLS||!1,videojs.browser.IE_VERSION&&(_this.experimentalLLHLS=!1),_this.state="HAVE_NOTHING",_this.handleMediaupdatetimeout_=_this.handleMediaupdatetimeout_.bind(assertThisInitialized(_this)),_this.on("mediaupdatetimeout",_this.handleMediaupdatetimeout_),_this}inheritsLoose(PlaylistLoader,_EventTarget);var _proto=PlaylistLoader.prototype;return _proto.handleMediaupdatetimeout_=function(){var _this2=this;if("HAVE_METADATA"===this.state){var media=this.media(),uri=resolveUrl(this.master.uri,media.uri);this.experimentalLLHLS&&(uri=function(uri,media){if(media.endList||!media.serverControl)return uri;var parameters={};if(media.serverControl.canBlockReload){var preloadSegment=media.preloadSegment,nextMSN=media.mediaSequence+media.segments.length;if(preloadSegment){var parts=preloadSegment.parts||[],nextPart=getKnownPartCount(media)-1;nextPart>-1&&nextPart!==parts.length-1&&(parameters._HLS_part=nextPart),(nextPart>-1||parts.length)&&nextMSN--}parameters._HLS_msn=nextMSN}if(media.serverControl&&media.serverControl.canSkipUntil&&(parameters._HLS_skip=media.serverControl.canSkipDateranges?"v2":"YES"),Object.keys(parameters).length){var parsedUri=new window.URL(uri);["_HLS_skip","_HLS_msn","_HLS_part"].forEach((function(name){parameters.hasOwnProperty(name)&&parsedUri.searchParams.set(name,parameters[name])})),uri=parsedUri.toString()}return uri}(uri,media)),this.state="HAVE_CURRENT_METADATA",this.request=this.vhs_.xhr({uri:uri,withCredentials:this.withCredentials},(function(error,req){if(_this2.request)return error?_this2.playlistRequestError(_this2.request,_this2.media(),"HAVE_METADATA"):void _this2.haveMetadata({playlistString:_this2.request.responseText,url:_this2.media().uri,id:_this2.media().id})}))}},_proto.playlistRequestError=function(xhr,playlist,startingState){var uri=playlist.uri,id=playlist.id;this.request=null,startingState&&(this.state=startingState),this.error={playlist:this.master.playlists[id],status:xhr.status,message:"HLS playlist request error at URL: "+uri+".",responseText:xhr.responseText,code:xhr.status>=500?4:2},this.trigger("error")},_proto.parseManifest_=function(_ref){var _this3=this,url=_ref.url;return function(_ref){var onwarn=_ref.onwarn,oninfo=_ref.oninfo,manifestString=_ref.manifestString,_ref$customTagParsers=_ref.customTagParsers,customTagParsers=void 0===_ref$customTagParsers?[]:_ref$customTagParsers,_ref$customTagMappers=_ref.customTagMappers,customTagMappers=void 0===_ref$customTagMappers?[]:_ref$customTagMappers,experimentalLLHLS=_ref.experimentalLLHLS,parser=new Parser;onwarn&&parser.on("warn",onwarn),oninfo&&parser.on("info",oninfo),customTagParsers.forEach((function(customParser){return parser.addParser(customParser)})),customTagMappers.forEach((function(mapper){return parser.addTagMapper(mapper)})),parser.push(manifestString),parser.end();var manifest=parser.manifest;if(experimentalLLHLS||(["preloadSegment","skip","serverControl","renditionReports","partInf","partTargetDuration"].forEach((function(k){manifest.hasOwnProperty(k)&&delete manifest[k]})),manifest.segments&&manifest.segments.forEach((function(segment){["parts","preloadHints"].forEach((function(k){segment.hasOwnProperty(k)&&delete segment[k]}))}))),!manifest.targetDuration){var targetDuration=10;manifest.segments&&manifest.segments.length&&(targetDuration=manifest.segments.reduce((function(acc,s){return Math.max(acc,s.duration)}),0)),onwarn&&onwarn("manifest has no targetDuration defaulting to "+targetDuration),manifest.targetDuration=targetDuration}var parts=getLastParts(manifest);if(parts.length&&!manifest.partTargetDuration){var partTargetDuration=parts.reduce((function(acc,p){return Math.max(acc,p.duration)}),0);onwarn&&(onwarn("manifest has no partTargetDuration defaulting to "+partTargetDuration),log.error("LL-HLS manifest has parts but lacks required #EXT-X-PART-INF:PART-TARGET value. See https://datatracker.ietf.org/doc/html/draft-pantos-hls-rfc8216bis-09#section-4.4.3.7. Playback is not guaranteed.")),manifest.partTargetDuration=partTargetDuration}return manifest}({onwarn:function(_ref2){var message=_ref2.message;return _this3.logger_("m3u8-parser warn for "+url+": "+message)},oninfo:function(_ref3){var message=_ref3.message;return _this3.logger_("m3u8-parser info for "+url+": "+message)},manifestString:_ref.manifestString,customTagParsers:this.customTagParsers,customTagMappers:this.customTagMappers,experimentalLLHLS:this.experimentalLLHLS})},_proto.haveMetadata=function(_ref4){var playlistString=_ref4.playlistString,playlistObject=_ref4.playlistObject,url=_ref4.url,id=_ref4.id;this.request=null,this.state="HAVE_METADATA";var playlist=playlistObject||this.parseManifest_({url:url,manifestString:playlistString});playlist.lastRequest=Date.now(),setupMediaPlaylist({playlist:playlist,uri:url,id:id});var update=updateMaster$1(this.master,playlist);this.targetDuration=playlist.partTargetDuration||playlist.targetDuration,this.pendingMedia_=null,update?(this.master=update,this.media_=this.master.playlists[id]):this.trigger("playlistunchanged"),this.updateMediaUpdateTimeout_(refreshDelay(this.media(),!!update)),this.trigger("loadedplaylist")},_proto.dispose=function(){this.trigger("dispose"),this.stopRequest(),window.clearTimeout(this.mediaUpdateTimeout),window.clearTimeout(this.finalRenditionTimeout),this.off()},_proto.stopRequest=function(){if(this.request){var oldRequest=this.request;this.request=null,oldRequest.onreadystatechange=null,oldRequest.abort()}},_proto.media=function(playlist,shouldDelay){var _this4=this;if(!playlist)return this.media_;if("HAVE_NOTHING"===this.state)throw new Error("Cannot switch media playlist from "+this.state);if("string"==typeof playlist){if(!this.master.playlists[playlist])throw new Error("Unknown playlist URI: "+playlist);playlist=this.master.playlists[playlist]}if(window.clearTimeout(this.finalRenditionTimeout),shouldDelay){var delay=(playlist.partTargetDuration||playlist.targetDuration)/2*1e3||5e3;this.finalRenditionTimeout=window.setTimeout(this.media.bind(this,playlist,!1),delay)}else{var startingState=this.state,mediaChange=!this.media_||playlist.id!==this.media_.id,masterPlaylistRef=this.master.playlists[playlist.id];if(masterPlaylistRef&&masterPlaylistRef.endList||playlist.endList&&playlist.segments.length)return this.request&&(this.request.onreadystatechange=null,this.request.abort(),this.request=null),this.state="HAVE_METADATA",this.media_=playlist,void(mediaChange&&(this.trigger("mediachanging"),"HAVE_MASTER"===startingState?this.trigger("loadedmetadata"):this.trigger("mediachange")));if(this.updateMediaUpdateTimeout_(refreshDelay(playlist,!0)),mediaChange){if(this.state="SWITCHING_MEDIA",this.request){if(playlist.resolvedUri===this.request.url)return;this.request.onreadystatechange=null,this.request.abort(),this.request=null}this.media_&&this.trigger("mediachanging"),this.pendingMedia_=playlist,this.request=this.vhs_.xhr({uri:playlist.resolvedUri,withCredentials:this.withCredentials},(function(error,req){if(_this4.request){if(playlist.lastRequest=Date.now(),playlist.resolvedUri=resolveManifestRedirect(_this4.handleManifestRedirects,playlist.resolvedUri,req),error)return _this4.playlistRequestError(_this4.request,playlist,startingState);_this4.haveMetadata({playlistString:req.responseText,url:playlist.uri,id:playlist.id}),"HAVE_MASTER"===startingState?_this4.trigger("loadedmetadata"):_this4.trigger("mediachange")}}))}}},_proto.pause=function(){this.mediaUpdateTimeout&&(window.clearTimeout(this.mediaUpdateTimeout),this.mediaUpdateTimeout=null),this.stopRequest(),"HAVE_NOTHING"===this.state&&(this.started=!1),"SWITCHING_MEDIA"===this.state?this.media_?this.state="HAVE_METADATA":this.state="HAVE_MASTER":"HAVE_CURRENT_METADATA"===this.state&&(this.state="HAVE_METADATA")},_proto.load=function(shouldDelay){var _this5=this;this.mediaUpdateTimeout&&(window.clearTimeout(this.mediaUpdateTimeout),this.mediaUpdateTimeout=null);var media=this.media();if(shouldDelay){var delay=media?(media.partTargetDuration||media.targetDuration)/2*1e3:5e3;this.mediaUpdateTimeout=window.setTimeout((function(){_this5.mediaUpdateTimeout=null,_this5.load()}),delay)}else this.started?media&&!media.endList?this.trigger("mediaupdatetimeout"):this.trigger("loadedplaylist"):this.start()},_proto.updateMediaUpdateTimeout_=function(delay){var _this6=this;this.mediaUpdateTimeout&&(window.clearTimeout(this.mediaUpdateTimeout),this.mediaUpdateTimeout=null),this.media()&&!this.media().endList&&(this.mediaUpdateTimeout=window.setTimeout((function(){_this6.mediaUpdateTimeout=null,_this6.trigger("mediaupdatetimeout"),_this6.updateMediaUpdateTimeout_(delay)}),delay))},_proto.start=function(){var _this7=this;if(this.started=!0,"object"==typeof this.src)return this.src.uri||(this.src.uri=window.location.href),this.src.resolvedUri=this.src.uri,void setTimeout((function(){_this7.setupInitialPlaylist(_this7.src)}),0);this.request=this.vhs_.xhr({uri:this.src,withCredentials:this.withCredentials},(function(error,req){if(_this7.request){if(_this7.request=null,error)return _this7.error={status:req.status,message:"HLS playlist request error at URL: "+_this7.src+".",responseText:req.responseText,code:2},"HAVE_NOTHING"===_this7.state&&(_this7.started=!1),_this7.trigger("error");_this7.src=resolveManifestRedirect(_this7.handleManifestRedirects,_this7.src,req);var manifest=_this7.parseManifest_({manifestString:req.responseText,url:_this7.src});_this7.setupInitialPlaylist(manifest)}}))},_proto.srcUri=function(){return"string"==typeof this.src?this.src:this.src.uri},_proto.setupInitialPlaylist=function(manifest){if(this.state="HAVE_MASTER",manifest.playlists)return this.master=manifest,addPropertiesToMaster(this.master,this.srcUri()),manifest.playlists.forEach((function(playlist){playlist.segments=getAllSegments(playlist),playlist.segments.forEach((function(segment){resolveSegmentUris(segment,playlist.resolvedUri)}))})),this.trigger("loadedplaylist"),void(this.request||this.media(this.master.playlists[0]));var uri=this.srcUri()||window.location.href;this.master=function(media,uri){var id=createPlaylistID(0,uri),master={mediaGroups:{AUDIO:{},VIDEO:{},"CLOSED-CAPTIONS":{},SUBTITLES:{}},uri:window.location.href,resolvedUri:window.location.href,playlists:[{uri:uri,id:id,resolvedUri:uri,attributes:{}}]};return master.playlists[id]=master.playlists[0],master.playlists[uri]=master.playlists[0],master}(0,uri),this.haveMetadata({playlistObject:manifest,url:uri,id:this.master.playlists[0].id}),this.trigger("loadedmetadata")},PlaylistLoader}(EventTarget$1),videojsXHR=videojs.xhr,mergeOptions$1=videojs.mergeOptions,callbackWrapper=function(request,error,response,callback){var reqResponse="arraybuffer"===request.responseType?request.response:request.responseText;!error&&reqResponse&&(request.responseTime=Date.now(),request.roundTripTime=request.responseTime-request.requestTime,request.bytesReceived=reqResponse.byteLength||reqResponse.length,request.bandwidth||(request.bandwidth=Math.floor(request.bytesReceived/request.roundTripTime*8*1e3))),response.headers&&(request.responseHeaders=response.headers),error&&"ETIMEDOUT"===error.code&&(request.timedout=!0),error||request.aborted||200===response.statusCode||206===response.statusCode||0===response.statusCode||(error=new Error("XHR Failed with a response of: "+(request&&(reqResponse||request.responseText)))),callback(error,request)},xhrFactory=function(){var xhr=function XhrFunction(options,callback){options=mergeOptions$1({timeout:45e3},options);var beforeRequest=XhrFunction.beforeRequest||videojs.Vhs.xhr.beforeRequest;if(beforeRequest&&"function"==typeof beforeRequest){var newOptions=beforeRequest(options);newOptions&&(options=newOptions)}var request=(!0===videojs.Vhs.xhr.original?videojsXHR:videojs.Vhs.xhr)(options,(function(error,response){return callbackWrapper(request,error,response,callback)})),originalAbort=request.abort;return request.abort=function(){return request.aborted=!0,originalAbort.apply(request,arguments)},request.uri=options.uri,request.requestTime=Date.now(),request};return xhr.original=!0,xhr},segmentXhrHeaders=function(segment){var byterange,headers={};return segment.byterange&&(headers.Range="bytes="+(byterange=segment.byterange).offset+"-"+("bigint"==typeof byterange.offset||"bigint"==typeof byterange.length?window.BigInt(byterange.offset)+window.BigInt(byterange.length)-window.BigInt(1):byterange.offset+byterange.length-1)),headers},textRange=function(range,i){return range.start(i)+"-"+range.end(i)},formatHexString=function(e,i){var value=e.toString(16);return"00".substring(0,2-value.length)+value+(i%2?" ":"")},formatAsciiString=function(e){return e>=32&&e<126?String.fromCharCode(e):"."},createTransferableMessage=function(message){var transferable={};return Object.keys(message).forEach((function(key){var value=message[key];isArrayBufferView(value)?transferable[key]={bytes:value.buffer,byteOffset:value.byteOffset,byteLength:value.byteLength}:transferable[key]=value})),transferable},initSegmentId=function(initSegment){var byterange=initSegment.byterange||{length:1/0,offset:0};return[byterange.length,byterange.offset,initSegment.resolvedUri].join(",")},segmentKeyId=function(key){return key.resolvedUri},hexDump=function(data){for(var bytes=Array.prototype.slice.call(data),result="",j=0;j<bytes.length/16;j++)result+=bytes.slice(16*j,16*j+16).map(formatHexString).join("")+" "+bytes.slice(16*j,16*j+16).map(formatAsciiString).join("")+"\n";return result},utils=Object.freeze({__proto__:null,createTransferableMessage:createTransferableMessage,initSegmentId:initSegmentId,segmentKeyId:segmentKeyId,hexDump:hexDump,tagDump:function(_ref){var bytes=_ref.bytes;return hexDump(bytes)},textRanges:function(ranges){var i,result="";for(i=0;i<ranges.length;i++)result+=textRange(ranges,i)+" ";return result}}),getProgramTime=function(_ref){var playlist=_ref.playlist,_ref$time=_ref.time,time=void 0===_ref$time?void 0:_ref$time,callback=_ref.callback;if(!callback)throw new Error("getProgramTime: callback must be provided");if(!playlist||void 0===time)return callback({message:"getProgramTime: playlist and time must be provided"});var matchedSegment=function(time,playlist){if(!playlist||!playlist.segments||0===playlist.segments.length)return null;for(var segment,segmentEnd=0,i=0;i<playlist.segments.length&&!(time<=(segmentEnd=(segment=playlist.segments[i]).videoTimingInfo?segment.videoTimingInfo.transmuxedPresentationEnd:segmentEnd+segment.duration));i++);var lastSegment=playlist.segments[playlist.segments.length-1];if(lastSegment.videoTimingInfo&&lastSegment.videoTimingInfo.transmuxedPresentationEnd<time)return null;if(time>segmentEnd){if(time>segmentEnd+.25*lastSegment.duration)return null;segment=lastSegment}return{segment:segment,estimatedStart:segment.videoTimingInfo?segment.videoTimingInfo.transmuxedPresentationStart:segmentEnd-segment.duration,type:segment.videoTimingInfo?"accurate":"estimate"}}(time,playlist);if(!matchedSegment)return callback({message:"valid programTime was not found"});if("estimate"===matchedSegment.type)return callback({message:"Accurate programTime could not be determined. Please seek to e.seekTime and try again",seekTime:matchedSegment.estimatedStart});var programTimeObject={mediaSeconds:time},programTime=function(playerTime,segment){if(!segment.dateTimeObject)return null;var transmuxerPrependedSeconds=segment.videoTimingInfo.transmuxerPrependedSeconds,offsetFromSegmentStart=playerTime-(segment.videoTimingInfo.transmuxedPresentationStart+transmuxerPrependedSeconds);return new Date(segment.dateTimeObject.getTime()+1e3*offsetFromSegmentStart)}(time,matchedSegment.segment);return programTime&&(programTimeObject.programDateTime=programTime.toISOString()),callback(null,programTimeObject)},seekToProgramTime=function seekToProgramTime(_ref2){var programTime=_ref2.programTime,playlist=_ref2.playlist,_ref2$retryCount=_ref2.retryCount,retryCount=void 0===_ref2$retryCount?2:_ref2$retryCount,seekTo=_ref2.seekTo,_ref2$pauseAfterSeek=_ref2.pauseAfterSeek,pauseAfterSeek=void 0===_ref2$pauseAfterSeek||_ref2$pauseAfterSeek,tech=_ref2.tech,callback=_ref2.callback;if(!callback)throw new Error("seekToProgramTime: callback must be provided");if(void 0===programTime||!playlist||!seekTo)return callback({message:"seekToProgramTime: programTime, seekTo and playlist must be provided"});if(!playlist.endList&&!tech.hasStarted_)return callback({message:"player must be playing a live stream to start buffering"});if(!function(playlist){if(!playlist.segments||0===playlist.segments.length)return!1;for(var i=0;i<playlist.segments.length;i++)if(!playlist.segments[i].dateTimeObject)return!1;return!0}(playlist))return callback({message:"programDateTime tags must be provided in the manifest "+playlist.resolvedUri});var matchedSegment=function(programTime,playlist){var dateTimeObject;try{dateTimeObject=new Date(programTime)}catch(e){return null}if(!playlist||!playlist.segments||0===playlist.segments.length)return null;var segment=playlist.segments[0];if(dateTimeObject<segment.dateTimeObject)return null;for(var i=0;i<playlist.segments.length-1&&(segment=playlist.segments[i],!(dateTimeObject<playlist.segments[i+1].dateTimeObject));i++);var videoTimingInfo,lastSegment=playlist.segments[playlist.segments.length-1],lastSegmentStart=lastSegment.dateTimeObject,lastSegmentDuration=lastSegment.videoTimingInfo?(videoTimingInfo=lastSegment.videoTimingInfo).transmuxedPresentationEnd-videoTimingInfo.transmuxedPresentationStart-videoTimingInfo.transmuxerPrependedSeconds:lastSegment.duration+.25*lastSegment.duration;return dateTimeObject>new Date(lastSegmentStart.getTime()+1e3*lastSegmentDuration)?null:(dateTimeObject>lastSegmentStart&&(segment=lastSegment),{segment:segment,estimatedStart:segment.videoTimingInfo?segment.videoTimingInfo.transmuxedPresentationStart:Playlist.duration(playlist,playlist.mediaSequence+playlist.segments.indexOf(segment)),type:segment.videoTimingInfo?"accurate":"estimate"})}(programTime,playlist);if(!matchedSegment)return callback({message:programTime+" was not found in the stream"});var segment=matchedSegment.segment,mediaOffset=function(comparisonTimeStamp,programTime){var segmentDateTime,programDateTime;try{segmentDateTime=new Date(comparisonTimeStamp),programDateTime=new Date(programTime)}catch(e){}var segmentTimeEpoch=segmentDateTime.getTime();return(programDateTime.getTime()-segmentTimeEpoch)/1e3}(segment.dateTimeObject,programTime);if("estimate"===matchedSegment.type)return 0===retryCount?callback({message:programTime+" is not buffered yet. Try again"}):(seekTo(matchedSegment.estimatedStart+mediaOffset),void tech.one("seeked",(function(){seekToProgramTime({programTime:programTime,playlist:playlist,retryCount:retryCount-1,seekTo:seekTo,pauseAfterSeek:pauseAfterSeek,tech:tech,callback:callback})})));var seekToTime=segment.start+mediaOffset;tech.one("seeked",(function(){return callback(null,tech.currentTime())})),pauseAfterSeek&&tech.pause(),seekTo(seekToTime)},callbackOnCompleted=function(request,cb){if(4===request.readyState)return cb()},containerRequest=function(uri,xhr,cb){var id3Offset,bytes=[],finished=!1,endRequestAndCallback=function(err,req,type,_bytes){return req.abort(),finished=!0,cb(err,req,type,_bytes)},progressListener=function(error,request){if(!finished){if(error)return endRequestAndCallback(error,request,"",bytes);var newPart=request.responseText.substring(bytes&&bytes.byteLength||0,request.responseText.length);if(bytes=function(){for(var _len=arguments.length,buffers=new Array(_len),_key=0;_key<_len;_key++)buffers[_key]=arguments[_key];if((buffers=buffers.filter((function(b){return b&&(b.byteLength||b.length)&&"string"!=typeof b}))).length<=1)return toUint8(buffers[0]);var totalLen=buffers.reduce((function(total,buf,i){return total+(buf.byteLength||buf.length)}),0),tempBuffer=new Uint8Array(totalLen),offset=0;return buffers.forEach((function(buf){buf=toUint8(buf),tempBuffer.set(buf,offset),offset+=buf.byteLength})),tempBuffer}(bytes,stringToBytes(newPart,!0)),id3Offset=id3Offset||getId3Offset(bytes),bytes.length<10||id3Offset&&bytes.length<id3Offset+2)return callbackOnCompleted(request,(function(){return endRequestAndCallback(error,request,"",bytes)}));var type=detectContainerForBytes(bytes);return"ts"===type&&bytes.length<188||!type&&bytes.length<376?callbackOnCompleted(request,(function(){return endRequestAndCallback(error,request,"",bytes)})):endRequestAndCallback(null,request,type,bytes)}},options={uri:uri,beforeSend:function(request){request.overrideMimeType("text/plain; charset=x-user-defined"),request.addEventListener("progress",(function(_ref){return _ref.total,_ref.loaded,callbackWrapper(request,null,{statusCode:request.status},progressListener)}))}},request=xhr(options,(function(error,response){return callbackWrapper(request,error,response,progressListener)}));return request},EventTarget=videojs.EventTarget,mergeOptions=videojs.mergeOptions,dashPlaylistUnchanged=function(a,b){if(!isPlaylistUnchanged(a,b))return!1;if(a.sidx&&b.sidx&&(a.sidx.offset!==b.sidx.offset||a.sidx.length!==b.sidx.length))return!1;if(!a.sidx&&b.sidx||a.sidx&&!b.sidx)return!1;if(a.segments&&!b.segments||!a.segments&&b.segments)return!1;if(!a.segments&&!b.segments)return!0;for(var i=0;i<a.segments.length;i++){var aSegment=a.segments[i],bSegment=b.segments[i];if(aSegment.uri!==bSegment.uri)return!1;if(aSegment.byterange||bSegment.byterange){var aByterange=aSegment.byterange,bByterange=bSegment.byterange;if(aByterange&&!bByterange||!aByterange&&bByterange)return!1;if(aByterange.offset!==bByterange.offset||aByterange.length!==bByterange.length)return!1}}return!0},compareSidxEntry=function(playlists,oldSidxMapping){var a,b,newSidxMapping={};for(var id in playlists){var currentSidxInfo=playlists[id].sidx;if(currentSidxInfo){var key=generateSidxKey(currentSidxInfo);if(!oldSidxMapping[key])break;var savedSidxInfo=oldSidxMapping[key].sidxInfo;a=savedSidxInfo,b=currentSidxInfo,(Boolean(!a.map&&!b.map)||Boolean(a.map&&b.map&&a.map.byterange.offset===b.map.byterange.offset&&a.map.byterange.length===b.map.byterange.length))&&a.uri===b.uri&&a.byterange.offset===b.byterange.offset&&a.byterange.length===b.byterange.length&&(newSidxMapping[key]=oldSidxMapping[key])}}return newSidxMapping},DashPlaylistLoader=function(_EventTarget){function DashPlaylistLoader(srcUrlOrPlaylist,vhs,options,masterPlaylistLoader){var _this;void 0===options&&(options={}),(_this=_EventTarget.call(this)||this).masterPlaylistLoader_=masterPlaylistLoader||assertThisInitialized(_this),masterPlaylistLoader||(_this.isMaster_=!0);var _options=options,_options$withCredenti=_options.withCredentials,withCredentials=void 0!==_options$withCredenti&&_options$withCredenti,_options$handleManife=_options.handleManifestRedirects,handleManifestRedirects=void 0!==_options$handleManife&&_options$handleManife;if(_this.vhs_=vhs,_this.withCredentials=withCredentials,_this.handleManifestRedirects=handleManifestRedirects,!srcUrlOrPlaylist)throw new Error("A non-empty playlist URL or object is required");return _this.on("minimumUpdatePeriod",(function(){_this.refreshXml_()})),_this.on("mediaupdatetimeout",(function(){_this.refreshMedia_(_this.media().id)})),_this.state="HAVE_NOTHING",_this.loadedPlaylists_={},_this.logger_=logger("DashPlaylistLoader"),_this.isMaster_?(_this.masterPlaylistLoader_.srcUrl=srcUrlOrPlaylist,_this.masterPlaylistLoader_.sidxMapping_={}):_this.childPlaylist_=srcUrlOrPlaylist,_this}inheritsLoose(DashPlaylistLoader,_EventTarget);var _proto=DashPlaylistLoader.prototype;return _proto.requestErrored_=function(err,request,startingState){return!this.request||(this.request=null,err?(this.error="object"!=typeof err||err instanceof Error?{status:request.status,message:"DASH request error at URL: "+request.uri,response:request.response,code:2}:err,startingState&&(this.state=startingState),this.trigger("error"),!0):void 0)},_proto.addSidxSegments_=function(playlist,startingState,cb){var _this2=this,sidxKey=playlist.sidx&&generateSidxKey(playlist.sidx);if(playlist.sidx&&sidxKey&&!this.masterPlaylistLoader_.sidxMapping_[sidxKey]){var uri=resolveManifestRedirect(this.handleManifestRedirects,playlist.sidx.resolvedUri),fin=function(err,request){if(!_this2.requestErrored_(err,request,startingState)){var sidx,sidxMapping=_this2.masterPlaylistLoader_.sidxMapping_;try{sidx=parseSidx_1(toUint8(request.response).subarray(8))}catch(e){return void _this2.requestErrored_(e,request,startingState)}return sidxMapping[sidxKey]={sidxInfo:playlist.sidx,sidx:sidx},addSidxSegmentsToPlaylist$1(playlist,sidx,playlist.sidx.resolvedUri),cb(!0)}};this.request=containerRequest(uri,this.vhs_.xhr,(function(err,request,container,bytes){if(err)return fin(err,request);if(!container||"mp4"!==container)return fin({status:request.status,message:"Unsupported "+(container||"unknown")+" container type for sidx segment at URL: "+uri,response:"",playlist:playlist,internal:!0,blacklistDuration:1/0,code:2},request);var _playlist$sidx$bytera=playlist.sidx.byterange,offset=_playlist$sidx$bytera.offset,length=_playlist$sidx$bytera.length;if(bytes.length>=length+offset)return fin(err,{response:bytes.subarray(offset,offset+length),status:request.status,uri:request.uri});_this2.request=_this2.vhs_.xhr({uri:uri,responseType:"arraybuffer",headers:segmentXhrHeaders({byterange:playlist.sidx.byterange})},fin)}))}else this.mediaRequest_=window.setTimeout((function(){return cb(!1)}),0)},_proto.dispose=function(){this.trigger("dispose"),this.stopRequest(),this.loadedPlaylists_={},window.clearTimeout(this.minimumUpdatePeriodTimeout_),window.clearTimeout(this.mediaRequest_),window.clearTimeout(this.mediaUpdateTimeout),this.mediaUpdateTimeout=null,this.mediaRequest_=null,this.minimumUpdatePeriodTimeout_=null,this.masterPlaylistLoader_.createMupOnMedia_&&(this.off("loadedmetadata",this.masterPlaylistLoader_.createMupOnMedia_),this.masterPlaylistLoader_.createMupOnMedia_=null),this.off()},_proto.hasPendingRequest=function(){return this.request||this.mediaRequest_},_proto.stopRequest=function(){if(this.request){var oldRequest=this.request;this.request=null,oldRequest.onreadystatechange=null,oldRequest.abort()}},_proto.media=function(playlist){var _this3=this;if(!playlist)return this.media_;if("HAVE_NOTHING"===this.state)throw new Error("Cannot switch media playlist from "+this.state);var startingState=this.state;if("string"==typeof playlist){if(!this.masterPlaylistLoader_.master.playlists[playlist])throw new Error("Unknown playlist URI: "+playlist);playlist=this.masterPlaylistLoader_.master.playlists[playlist]}var mediaChange=!this.media_||playlist.id!==this.media_.id;if(mediaChange&&this.loadedPlaylists_[playlist.id]&&this.loadedPlaylists_[playlist.id].endList)return this.state="HAVE_METADATA",this.media_=playlist,void(mediaChange&&(this.trigger("mediachanging"),this.trigger("mediachange")));mediaChange&&(this.media_&&this.trigger("mediachanging"),this.addSidxSegments_(playlist,startingState,(function(sidxChanged){_this3.haveMetadata({startingState:startingState,playlist:playlist})})))},_proto.haveMetadata=function(_ref2){var startingState=_ref2.startingState,playlist=_ref2.playlist;this.state="HAVE_METADATA",this.loadedPlaylists_[playlist.id]=playlist,this.mediaRequest_=null,this.refreshMedia_(playlist.id),"HAVE_MASTER"===startingState?this.trigger("loadedmetadata"):this.trigger("mediachange")},_proto.pause=function(){this.masterPlaylistLoader_.createMupOnMedia_&&(this.off("loadedmetadata",this.masterPlaylistLoader_.createMupOnMedia_),this.masterPlaylistLoader_.createMupOnMedia_=null),this.stopRequest(),window.clearTimeout(this.mediaUpdateTimeout),this.mediaUpdateTimeout=null,this.isMaster_&&(window.clearTimeout(this.masterPlaylistLoader_.minimumUpdatePeriodTimeout_),this.masterPlaylistLoader_.minimumUpdatePeriodTimeout_=null),"HAVE_NOTHING"===this.state&&(this.started=!1)},_proto.load=function(isFinalRendition){var _this4=this;window.clearTimeout(this.mediaUpdateTimeout),this.mediaUpdateTimeout=null;var media=this.media();if(isFinalRendition){var delay=media?media.targetDuration/2*1e3:5e3;this.mediaUpdateTimeout=window.setTimeout((function(){return _this4.load()}),delay)}else this.started?media&&!media.endList?(this.isMaster_&&!this.minimumUpdatePeriodTimeout_&&(this.trigger("minimumUpdatePeriod"),this.updateMinimumUpdatePeriodTimeout_()),this.trigger("mediaupdatetimeout")):this.trigger("loadedplaylist"):this.start()},_proto.start=function(){var _this5=this;this.started=!0,this.isMaster_?this.requestMaster_((function(req,masterChanged){_this5.haveMaster_(),_this5.hasPendingRequest()||_this5.media_||_this5.media(_this5.masterPlaylistLoader_.master.playlists[0])})):this.mediaRequest_=window.setTimeout((function(){return _this5.haveMaster_()}),0)},_proto.requestMaster_=function(cb){var _this6=this;this.request=this.vhs_.xhr({uri:this.masterPlaylistLoader_.srcUrl,withCredentials:this.withCredentials},(function(error,req){if(!_this6.requestErrored_(error,req)){var masterChanged=req.responseText!==_this6.masterPlaylistLoader_.masterXml_;return _this6.masterPlaylistLoader_.masterXml_=req.responseText,req.responseHeaders&&req.responseHeaders.date?_this6.masterLoaded_=Date.parse(req.responseHeaders.date):_this6.masterLoaded_=Date.now(),_this6.masterPlaylistLoader_.srcUrl=resolveManifestRedirect(_this6.handleManifestRedirects,_this6.masterPlaylistLoader_.srcUrl,req),masterChanged?(_this6.handleMaster_(),void _this6.syncClientServerClock_((function(){return cb(req,masterChanged)}))):cb(req,masterChanged)}"HAVE_NOTHING"===_this6.state&&(_this6.started=!1)}))},_proto.syncClientServerClock_=function(done){var _this7=this,utcTiming=parseUTCTiming(this.masterPlaylistLoader_.masterXml_);return null===utcTiming?(this.masterPlaylistLoader_.clientOffset_=this.masterLoaded_-Date.now(),done()):"DIRECT"===utcTiming.method?(this.masterPlaylistLoader_.clientOffset_=utcTiming.value-Date.now(),done()):void(this.request=this.vhs_.xhr({uri:resolveUrl(this.masterPlaylistLoader_.srcUrl,utcTiming.value),method:utcTiming.method,withCredentials:this.withCredentials},(function(error,req){if(_this7.request){if(error)return _this7.masterPlaylistLoader_.clientOffset_=_this7.masterLoaded_-Date.now(),done();var serverTime;serverTime="HEAD"===utcTiming.method?req.responseHeaders&&req.responseHeaders.date?Date.parse(req.responseHeaders.date):_this7.masterLoaded_:Date.parse(req.responseText),_this7.masterPlaylistLoader_.clientOffset_=serverTime-Date.now(),done()}})))},_proto.haveMaster_=function(){this.state="HAVE_MASTER",this.isMaster_?this.trigger("loadedplaylist"):this.media_||this.media(this.childPlaylist_)},_proto.handleMaster_=function(){this.mediaRequest_=null;var _ref,masterXml,srcUrl,clientOffset,sidxMapping,previousManifest,manifest,oldMaster=this.masterPlaylistLoader_.master,newMaster=(_ref={masterXml:this.masterPlaylistLoader_.masterXml_,srcUrl:this.masterPlaylistLoader_.srcUrl,clientOffset:this.masterPlaylistLoader_.clientOffset_,sidxMapping:this.masterPlaylistLoader_.sidxMapping_,previousManifest:oldMaster},masterXml=_ref.masterXml,srcUrl=_ref.srcUrl,clientOffset=_ref.clientOffset,sidxMapping=_ref.sidxMapping,previousManifest=_ref.previousManifest,manifest=parse(masterXml,{manifestUri:srcUrl,clientOffset:clientOffset,sidxMapping:sidxMapping,previousManifest:previousManifest}),addPropertiesToMaster(manifest,srcUrl),manifest);oldMaster&&(newMaster=function(oldMaster,newMaster,sidxMapping){for(var noChanges=!0,update=mergeOptions(oldMaster,{duration:newMaster.duration,minimumUpdatePeriod:newMaster.minimumUpdatePeriod,timelineStarts:newMaster.timelineStarts}),i=0;i<newMaster.playlists.length;i++){var playlist=newMaster.playlists[i];if(playlist.sidx){var sidxKey=generateSidxKey(playlist.sidx);sidxMapping&&sidxMapping[sidxKey]&&sidxMapping[sidxKey].sidx&&addSidxSegmentsToPlaylist$1(playlist,sidxMapping[sidxKey].sidx,playlist.sidx.resolvedUri)}var playlistUpdate=updateMaster$1(update,playlist,dashPlaylistUnchanged);playlistUpdate&&(update=playlistUpdate,noChanges=!1)}return forEachMediaGroup(newMaster,(function(properties,type,group,label){if(properties.playlists&&properties.playlists.length){var id=properties.playlists[0].id,_playlistUpdate=updateMaster$1(update,properties.playlists[0],dashPlaylistUnchanged);_playlistUpdate&&((update=_playlistUpdate).mediaGroups[type][group][label].playlists[0]=update.playlists[id],noChanges=!1)}})),newMaster.minimumUpdatePeriod!==oldMaster.minimumUpdatePeriod&&(noChanges=!1),noChanges?null:update}(oldMaster,newMaster,this.masterPlaylistLoader_.sidxMapping_)),this.masterPlaylistLoader_.master=newMaster||oldMaster;var location=this.masterPlaylistLoader_.master.locations&&this.masterPlaylistLoader_.master.locations[0];return location&&location!==this.masterPlaylistLoader_.srcUrl&&(this.masterPlaylistLoader_.srcUrl=location),(!oldMaster||newMaster&&newMaster.minimumUpdatePeriod!==oldMaster.minimumUpdatePeriod)&&this.updateMinimumUpdatePeriodTimeout_(),Boolean(newMaster)},_proto.updateMinimumUpdatePeriodTimeout_=function(){var mpl=this.masterPlaylistLoader_;mpl.createMupOnMedia_&&(mpl.off("loadedmetadata",mpl.createMupOnMedia_),mpl.createMupOnMedia_=null),mpl.minimumUpdatePeriodTimeout_&&(window.clearTimeout(mpl.minimumUpdatePeriodTimeout_),mpl.minimumUpdatePeriodTimeout_=null);var mup=mpl.master&&mpl.master.minimumUpdatePeriod;0===mup&&(mpl.media()?mup=1e3*mpl.media().targetDuration:(mpl.createMupOnMedia_=mpl.updateMinimumUpdatePeriodTimeout_,mpl.one("loadedmetadata",mpl.createMupOnMedia_))),"number"!=typeof mup||mup<=0?mup<0&&this.logger_("found invalid minimumUpdatePeriod of "+mup+", not setting a timeout"):this.createMUPTimeout_(mup)},_proto.createMUPTimeout_=function(mup){var mpl=this.masterPlaylistLoader_;mpl.minimumUpdatePeriodTimeout_=window.setTimeout((function(){mpl.minimumUpdatePeriodTimeout_=null,mpl.trigger("minimumUpdatePeriod"),mpl.createMUPTimeout_(mup)}),mup)},_proto.refreshXml_=function(){var _this8=this;this.requestMaster_((function(req,masterChanged){var master,oldSidxMapping,mediaGroupSidx;masterChanged&&(_this8.media_&&(_this8.media_=_this8.masterPlaylistLoader_.master.playlists[_this8.media_.id]),_this8.masterPlaylistLoader_.sidxMapping_=(master=_this8.masterPlaylistLoader_.master,oldSidxMapping=_this8.masterPlaylistLoader_.sidxMapping_,mediaGroupSidx=compareSidxEntry(master.playlists,oldSidxMapping),forEachMediaGroup(master,(function(properties,mediaType,groupKey,labelKey){if(properties.playlists&&properties.playlists.length){var playlists=properties.playlists;mediaGroupSidx=mergeOptions(mediaGroupSidx,compareSidxEntry(playlists,oldSidxMapping))}})),mediaGroupSidx),_this8.addSidxSegments_(_this8.media(),_this8.state,(function(sidxChanged){_this8.refreshMedia_(_this8.media().id)})))}))},_proto.refreshMedia_=function(mediaID){var _this9=this;if(!mediaID)throw new Error("refreshMedia_ must take a media id");this.media_&&this.isMaster_&&this.handleMaster_();var playlists=this.masterPlaylistLoader_.master.playlists,mediaChanged=!this.media_||this.media_!==playlists[mediaID];if(mediaChanged?this.media_=playlists[mediaID]:this.trigger("playlistunchanged"),!this.mediaUpdateTimeout){!function createMediaUpdateTimeout(){_this9.media().endList||(_this9.mediaUpdateTimeout=window.setTimeout((function(){_this9.trigger("mediaupdatetimeout"),createMediaUpdateTimeout()}),refreshDelay(_this9.media(),Boolean(mediaChanged))))}()}this.trigger("loadedplaylist")},DashPlaylistLoader}(EventTarget),Config={GOAL_BUFFER_LENGTH:30,MAX_GOAL_BUFFER_LENGTH:60,BACK_BUFFER_LENGTH:30,GOAL_BUFFER_LENGTH_RATE:1,INITIAL_BANDWIDTH:4194304,BANDWIDTH_VARIANCE:1.2,BUFFER_LOW_WATER_LINE:0,MAX_BUFFER_LOW_WATER_LINE:30,EXPERIMENTAL_MAX_BUFFER_LOW_WATER_LINE:16,BUFFER_LOW_WATER_LINE_RATE:1,BUFFER_HIGH_WATER_LINE:30},browserWorkerPolyFill=function(workerObj){return workerObj.on=workerObj.addEventListener,workerObj.off=workerObj.removeEventListener,workerObj},factory=function(code){return function(){var objectUrl=function(str){try{return URL.createObjectURL(new Blob([str],{type:"application/javascript"}))}catch(e){var blob=new BlobBuilder;return blob.append(str),URL.createObjectURL(blob.getBlob())}}(code),worker=browserWorkerPolyFill(new Worker(objectUrl));worker.objURL=objectUrl;var terminate=worker.terminate;return worker.on=worker.addEventListener,worker.off=worker.removeEventListener,worker.terminate=function(){return URL.revokeObjectURL(objectUrl),terminate.call(this)},worker}},transform=function(code){return"var browserWorkerPolyFill = "+browserWorkerPolyFill.toString()+";\nbrowserWorkerPolyFill(self);\n"+code},getWorkerString=function(fn){return fn.toString().replace(/^function.+?{/,"").slice(0,-1)},workerCode$1=transform(getWorkerString((function(){var Stream=function(){this.init=function(){var listeners={};this.on=function(type,listener){listeners[type]||(listeners[type]=[]),listeners[type]=listeners[type].concat(listener)},this.off=function(type,listener){var index;return!!listeners[type]&&(index=listeners[type].indexOf(listener),listeners[type]=listeners[type].slice(),listeners[type].splice(index,1),index>-1)},this.trigger=function(type){var callbacks,i,length,args;if(callbacks=listeners[type])if(2===arguments.length)for(length=callbacks.length,i=0;i<length;++i)callbacks[i].call(this,arguments[1]);else{for(args=[],i=arguments.length,i=1;i<arguments.length;++i)args.push(arguments[i]);for(length=callbacks.length,i=0;i<length;++i)callbacks[i].apply(this,args)}},this.dispose=function(){listeners={}}}};Stream.prototype.pipe=function(destination){return this.on("data",(function(data){destination.push(data)})),this.on("done",(function(flushSource){destination.flush(flushSource)})),this.on("partialdone",(function(flushSource){destination.partialFlush(flushSource)})),this.on("endedtimeline",(function(flushSource){destination.endTimeline(flushSource)})),this.on("reset",(function(flushSource){destination.reset(flushSource)})),destination},Stream.prototype.push=function(data){this.trigger("data",data)},Stream.prototype.flush=function(flushSource){this.trigger("done",flushSource)},Stream.prototype.partialFlush=function(flushSource){this.trigger("partialdone",flushSource)},Stream.prototype.endTimeline=function(flushSource){this.trigger("endedtimeline",flushSource)},Stream.prototype.reset=function(flushSource){this.trigger("reset",flushSource)};var box,dinf,esds,ftyp,mfhd,minf,moof,moov,mvex,mvhd,trak,tkhd,mdia,mdhd,hdlr,sdtp,stbl,stsd,traf,trex,trun$1,types,MAJOR_BRAND,MINOR_VERSION,AVC1_BRAND,VIDEO_HDLR,AUDIO_HDLR,HDLR_TYPES,VMHD,SMHD,DREF,STCO,STSC,STSZ,STTS,videoSample,audioSample,audioTrun,videoTrun,trunHeader,stream=Stream,MAX_UINT32$1=Math.pow(2,32),numbers={getUint64:function(uint8){var value,dv=new DataView(uint8.buffer,uint8.byteOffset,uint8.byteLength);return dv.getBigUint64?(value=dv.getBigUint64(0))<Number.MAX_SAFE_INTEGER?Number(value):value:dv.getUint32(0)*MAX_UINT32$1+dv.getUint32(4)},MAX_UINT32:MAX_UINT32$1},MAX_UINT32=numbers.MAX_UINT32;!function(){var i;if(types={avc1:[],avcC:[],btrt:[],dinf:[],dref:[],esds:[],ftyp:[],hdlr:[],mdat:[],mdhd:[],mdia:[],mfhd:[],minf:[],moof:[],moov:[],mp4a:[],mvex:[],mvhd:[],pasp:[],sdtp:[],smhd:[],stbl:[],stco:[],stsc:[],stsd:[],stsz:[],stts:[],styp:[],tfdt:[],tfhd:[],traf:[],trak:[],trun:[],trex:[],tkhd:[],vmhd:[]},"undefined"!=typeof Uint8Array){for(i in types)types.hasOwnProperty(i)&&(types[i]=[i.charCodeAt(0),i.charCodeAt(1),i.charCodeAt(2),i.charCodeAt(3)]);MAJOR_BRAND=new Uint8Array(["i".charCodeAt(0),"s".charCodeAt(0),"o".charCodeAt(0),"m".charCodeAt(0)]),AVC1_BRAND=new Uint8Array(["a".charCodeAt(0),"v".charCodeAt(0),"c".charCodeAt(0),"1".charCodeAt(0)]),MINOR_VERSION=new Uint8Array([0,0,0,1]),VIDEO_HDLR=new Uint8Array([0,0,0,0,0,0,0,0,118,105,100,101,0,0,0,0,0,0,0,0,0,0,0,0,86,105,100,101,111,72,97,110,100,108,101,114,0]),AUDIO_HDLR=new Uint8Array([0,0,0,0,0,0,0,0,115,111,117,110,0,0,0,0,0,0,0,0,0,0,0,0,83,111,117,110,100,72,97,110,100,108,101,114,0]),HDLR_TYPES={video:VIDEO_HDLR,audio:AUDIO_HDLR},DREF=new Uint8Array([0,0,0,0,0,0,0,1,0,0,0,12,117,114,108,32,0,0,0,1]),SMHD=new Uint8Array([0,0,0,0,0,0,0,0]),STCO=new Uint8Array([0,0,0,0,0,0,0,0]),STSC=STCO,STSZ=new Uint8Array([0,0,0,0,0,0,0,0,0,0,0,0]),STTS=STCO,VMHD=new Uint8Array([0,0,0,1,0,0,0,0,0,0,0,0])}}(),box=function(type){var i,result,payload=[],size=0;for(i=1;i<arguments.length;i++)payload.push(arguments[i]);for(i=payload.length;i--;)size+=payload[i].byteLength;for(result=new Uint8Array(size+8),new DataView(result.buffer,result.byteOffset,result.byteLength).setUint32(0,result.byteLength),result.set(type,4),i=0,size=8;i<payload.length;i++)result.set(payload[i],size),size+=payload[i].byteLength;return result},dinf=function(){return box(types.dinf,box(types.dref,DREF))},esds=function(track){return box(types.esds,new Uint8Array([0,0,0,0,3,25,0,0,0,4,17,64,21,0,6,0,0,0,218,192,0,0,218,192,5,2,track.audioobjecttype<<3|track.samplingfrequencyindex>>>1,track.samplingfrequencyindex<<7|track.channelcount<<3,6,1,2]))},hdlr=function(type){return box(types.hdlr,HDLR_TYPES[type])},mdhd=function(track){var result=new Uint8Array([0,0,0,0,0,0,0,2,0,0,0,3,0,1,95,144,track.duration>>>24&255,track.duration>>>16&255,track.duration>>>8&255,255&track.duration,85,196,0,0]);return track.samplerate&&(result[12]=track.samplerate>>>24&255,result[13]=track.samplerate>>>16&255,result[14]=track.samplerate>>>8&255,result[15]=255&track.samplerate),box(types.mdhd,result)},mdia=function(track){return box(types.mdia,mdhd(track),hdlr(track.type),minf(track))},mfhd=function(sequenceNumber){return box(types.mfhd,new Uint8Array([0,0,0,0,(4278190080&sequenceNumber)>>24,(16711680&sequenceNumber)>>16,(65280&sequenceNumber)>>8,255&sequenceNumber]))},minf=function(track){return box(types.minf,"video"===track.type?box(types.vmhd,VMHD):box(types.smhd,SMHD),dinf(),stbl(track))},moof=function(sequenceNumber,tracks){for(var trackFragments=[],i=tracks.length;i--;)trackFragments[i]=traf(tracks[i]);return box.apply(null,[types.moof,mfhd(sequenceNumber)].concat(trackFragments))},moov=function(tracks){for(var i=tracks.length,boxes=[];i--;)boxes[i]=trak(tracks[i]);return box.apply(null,[types.moov,mvhd(4294967295)].concat(boxes).concat(mvex(tracks)))},mvex=function(tracks){for(var i=tracks.length,boxes=[];i--;)boxes[i]=trex(tracks[i]);return box.apply(null,[types.mvex].concat(boxes))},mvhd=function(duration){var bytes=new Uint8Array([0,0,0,0,0,0,0,1,0,0,0,2,0,1,95,144,(4278190080&duration)>>24,(16711680&duration)>>16,(65280&duration)>>8,255&duration,0,1,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,64,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,255,255,255,255]);return box(types.mvhd,bytes)},sdtp=function(track){var flags,i,samples=track.samples||[],bytes=new Uint8Array(4+samples.length);for(i=0;i<samples.length;i++)flags=samples[i].flags,bytes[i+4]=flags.dependsOn<<4|flags.isDependedOn<<2|flags.hasRedundancy;return box(types.sdtp,bytes)},stbl=function(track){return box(types.stbl,stsd(track),box(types.stts,STTS),box(types.stsc,STSC),box(types.stsz,STSZ),box(types.stco,STCO))},stsd=function(track){return box(types.stsd,new Uint8Array([0,0,0,0,0,0,0,1]),"video"===track.type?videoSample(track):audioSample(track))},videoSample=function(track){var i,avc1Box,sps=track.sps||[],pps=track.pps||[],sequenceParameterSets=[],pictureParameterSets=[];for(i=0;i<sps.length;i++)sequenceParameterSets.push((65280&sps[i].byteLength)>>>8),sequenceParameterSets.push(255&sps[i].byteLength),sequenceParameterSets=sequenceParameterSets.concat(Array.prototype.slice.call(sps[i]));for(i=0;i<pps.length;i++)pictureParameterSets.push((65280&pps[i].byteLength)>>>8),pictureParameterSets.push(255&pps[i].byteLength),pictureParameterSets=pictureParameterSets.concat(Array.prototype.slice.call(pps[i]));if(avc1Box=[types.avc1,new Uint8Array([0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,(65280&track.width)>>8,255&track.width,(65280&track.height)>>8,255&track.height,0,72,0,0,0,72,0,0,0,0,0,0,0,1,19,118,105,100,101,111,106,115,45,99,111,110,116,114,105,98,45,104,108,115,0,0,0,0,0,0,0,0,0,0,0,0,0,24,17,17]),box(types.avcC,new Uint8Array([1,track.profileIdc,track.profileCompatibility,track.levelIdc,255].concat([sps.length],sequenceParameterSets,[pps.length],pictureParameterSets))),box(types.btrt,new Uint8Array([0,28,156,128,0,45,198,192,0,45,198,192]))],track.sarRatio){var hSpacing=track.sarRatio[0],vSpacing=track.sarRatio[1];avc1Box.push(box(types.pasp,new Uint8Array([(4278190080&hSpacing)>>24,(16711680&hSpacing)>>16,(65280&hSpacing)>>8,255&hSpacing,(4278190080&vSpacing)>>24,(16711680&vSpacing)>>16,(65280&vSpacing)>>8,255&vSpacing])))}return box.apply(null,avc1Box)},audioSample=function(track){return box(types.mp4a,new Uint8Array([0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,(65280&track.channelcount)>>8,255&track.channelcount,(65280&track.samplesize)>>8,255&track.samplesize,0,0,0,0,(65280&track.samplerate)>>8,255&track.samplerate,0,0]),esds(track))},tkhd=function(track){var result=new Uint8Array([0,0,0,7,0,0,0,0,0,0,0,0,(4278190080&track.id)>>24,(16711680&track.id)>>16,(65280&track.id)>>8,255&track.id,0,0,0,0,(4278190080&track.duration)>>24,(16711680&track.duration)>>16,(65280&track.duration)>>8,255&track.duration,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,64,0,0,0,(65280&track.width)>>8,255&track.width,0,0,(65280&track.height)>>8,255&track.height,0,0]);return box(types.tkhd,result)},traf=function(track){var trackFragmentHeader,trackFragmentDecodeTime,trackFragmentRun,sampleDependencyTable,upperWordBaseMediaDecodeTime,lowerWordBaseMediaDecodeTime;return trackFragmentHeader=box(types.tfhd,new Uint8Array([0,0,0,58,(4278190080&track.id)>>24,(16711680&track.id)>>16,(65280&track.id)>>8,255&track.id,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0])),upperWordBaseMediaDecodeTime=Math.floor(track.baseMediaDecodeTime/MAX_UINT32),lowerWordBaseMediaDecodeTime=Math.floor(track.baseMediaDecodeTime%MAX_UINT32),trackFragmentDecodeTime=box(types.tfdt,new Uint8Array([1,0,0,0,upperWordBaseMediaDecodeTime>>>24&255,upperWordBaseMediaDecodeTime>>>16&255,upperWordBaseMediaDecodeTime>>>8&255,255&upperWordBaseMediaDecodeTime,lowerWordBaseMediaDecodeTime>>>24&255,lowerWordBaseMediaDecodeTime>>>16&255,lowerWordBaseMediaDecodeTime>>>8&255,255&lowerWordBaseMediaDecodeTime])),92,"audio"===track.type?(trackFragmentRun=trun$1(track,92),box(types.traf,trackFragmentHeader,trackFragmentDecodeTime,trackFragmentRun)):(sampleDependencyTable=sdtp(track),trackFragmentRun=trun$1(track,sampleDependencyTable.length+92),box(types.traf,trackFragmentHeader,trackFragmentDecodeTime,trackFragmentRun,sampleDependencyTable))},trak=function(track){return track.duration=track.duration||4294967295,box(types.trak,tkhd(track),mdia(track))},trex=function(track){var result=new Uint8Array([0,0,0,0,(4278190080&track.id)>>24,(16711680&track.id)>>16,(65280&track.id)>>8,255&track.id,0,0,0,1,0,0,0,0,0,0,0,0,0,1,0,1]);return"video"!==track.type&&(result[result.length-1]=0),box(types.trex,result)},trunHeader=function(samples,offset){var durationPresent=0,sizePresent=0,flagsPresent=0,compositionTimeOffset=0;return samples.length&&(void 0!==samples[0].duration&&(durationPresent=1),void 0!==samples[0].size&&(sizePresent=2),void 0!==samples[0].flags&&(flagsPresent=4),void 0!==samples[0].compositionTimeOffset&&(compositionTimeOffset=8)),[0,0,durationPresent|sizePresent|flagsPresent|compositionTimeOffset,1,(4278190080&samples.length)>>>24,(16711680&samples.length)>>>16,(65280&samples.length)>>>8,255&samples.length,(4278190080&offset)>>>24,(16711680&offset)>>>16,(65280&offset)>>>8,255&offset]},videoTrun=function(track,offset){var bytesOffest,bytes,header,samples,sample,i;for(offset+=20+16*(samples=track.samples||[]).length,header=trunHeader(samples,offset),(bytes=new Uint8Array(header.length+16*samples.length)).set(header),bytesOffest=header.length,i=0;i<samples.length;i++)sample=samples[i],bytes[bytesOffest++]=(4278190080&sample.duration)>>>24,bytes[bytesOffest++]=(16711680&sample.duration)>>>16,bytes[bytesOffest++]=(65280&sample.duration)>>>8,bytes[bytesOffest++]=255&sample.duration,bytes[bytesOffest++]=(4278190080&sample.size)>>>24,bytes[bytesOffest++]=(16711680&sample.size)>>>16,bytes[bytesOffest++]=(65280&sample.size)>>>8,bytes[bytesOffest++]=255&sample.size,bytes[bytesOffest++]=sample.flags.isLeading<<2|sample.flags.dependsOn,bytes[bytesOffest++]=sample.flags.isDependedOn<<6|sample.flags.hasRedundancy<<4|sample.flags.paddingValue<<1|sample.flags.isNonSyncSample,bytes[bytesOffest++]=61440&sample.flags.degradationPriority,bytes[bytesOffest++]=15&sample.flags.degradationPriority,bytes[bytesOffest++]=(4278190080&sample.compositionTimeOffset)>>>24,bytes[bytesOffest++]=(16711680&sample.compositionTimeOffset)>>>16,bytes[bytesOffest++]=(65280&sample.compositionTimeOffset)>>>8,bytes[bytesOffest++]=255&sample.compositionTimeOffset;return box(types.trun,bytes)},audioTrun=function(track,offset){var bytes,bytesOffest,header,samples,sample,i;for(offset+=20+8*(samples=track.samples||[]).length,header=trunHeader(samples,offset),(bytes=new Uint8Array(header.length+8*samples.length)).set(header),bytesOffest=header.length,i=0;i<samples.length;i++)sample=samples[i],bytes[bytesOffest++]=(4278190080&sample.duration)>>>24,bytes[bytesOffest++]=(16711680&sample.duration)>>>16,bytes[bytesOffest++]=(65280&sample.duration)>>>8,bytes[bytesOffest++]=255&sample.duration,bytes[bytesOffest++]=(4278190080&sample.size)>>>24,bytes[bytesOffest++]=(16711680&sample.size)>>>16,bytes[bytesOffest++]=(65280&sample.size)>>>8,bytes[bytesOffest++]=255&sample.size;return box(types.trun,bytes)},trun$1=function(track,offset){return"audio"===track.type?audioTrun(track,offset):videoTrun(track,offset)};ftyp=function(){return box(types.ftyp,MAJOR_BRAND,MINOR_VERSION,MAJOR_BRAND,AVC1_BRAND)};var silence,secondsToVideoTs,secondsToAudioTs,videoTsToSeconds,audioTsToSeconds,audioTsToVideoTs,videoTsToAudioTs,metadataTsToSeconds,mp4Generator_mdat=function(data){return box(types.mdat,data)},mp4Generator_moof=moof,mp4Generator_initSegment=function(tracks){var result,fileType=ftyp(),movie=moov(tracks);return(result=new Uint8Array(fileType.byteLength+movie.byteLength)).set(fileType),result.set(movie,fileType.byteLength),result},sampleForFrame=function(frame,dataOffset){var sample={size:0,flags:{isLeading:0,dependsOn:1,isDependedOn:0,hasRedundancy:0,degradationPriority:0,isNonSyncSample:1}};return sample.dataOffset=dataOffset,sample.compositionTimeOffset=frame.pts-frame.dts,sample.duration=frame.duration,sample.size=4*frame.length,sample.size+=frame.byteLength,frame.keyFrame&&(sample.flags.dependsOn=2,sample.flags.isNonSyncSample=0),sample},frameUtils_groupNalsIntoFrames=function(nalUnits){var i,currentNal,currentFrame=[],frames=[];for(frames.byteLength=0,frames.nalCount=0,frames.duration=0,currentFrame.byteLength=0,i=0;i<nalUnits.length;i++)"access_unit_delimiter_rbsp"===(currentNal=nalUnits[i]).nalUnitType?(currentFrame.length&&(currentFrame.duration=currentNal.dts-currentFrame.dts,frames.byteLength+=currentFrame.byteLength,frames.nalCount+=currentFrame.length,frames.duration+=currentFrame.duration,frames.push(currentFrame)),(currentFrame=[currentNal]).byteLength=currentNal.data.byteLength,currentFrame.pts=currentNal.pts,currentFrame.dts=currentNal.dts):("slice_layer_without_partitioning_rbsp_idr"===currentNal.nalUnitType&&(currentFrame.keyFrame=!0),currentFrame.duration=currentNal.dts-currentFrame.dts,currentFrame.byteLength+=currentNal.data.byteLength,currentFrame.push(currentNal));return frames.length&&(!currentFrame.duration||currentFrame.duration<=0)&&(currentFrame.duration=frames[frames.length-1].duration),frames.byteLength+=currentFrame.byteLength,frames.nalCount+=currentFrame.length,frames.duration+=currentFrame.duration,frames.push(currentFrame),frames},frameUtils_groupFramesIntoGops=function(frames){var i,currentFrame,currentGop=[],gops=[];for(currentGop.byteLength=0,currentGop.nalCount=0,currentGop.duration=0,currentGop.pts=frames[0].pts,currentGop.dts=frames[0].dts,gops.byteLength=0,gops.nalCount=0,gops.duration=0,gops.pts=frames[0].pts,gops.dts=frames[0].dts,i=0;i<frames.length;i++)(currentFrame=frames[i]).keyFrame?(currentGop.length&&(gops.push(currentGop),gops.byteLength+=currentGop.byteLength,gops.nalCount+=currentGop.nalCount,gops.duration+=currentGop.duration),(currentGop=[currentFrame]).nalCount=currentFrame.length,currentGop.byteLength=currentFrame.byteLength,currentGop.pts=currentFrame.pts,currentGop.dts=currentFrame.dts,currentGop.duration=currentFrame.duration):(currentGop.duration+=currentFrame.duration,currentGop.nalCount+=currentFrame.length,currentGop.byteLength+=currentFrame.byteLength,currentGop.push(currentFrame));return gops.length&&currentGop.duration<=0&&(currentGop.duration=gops[gops.length-1].duration),gops.byteLength+=currentGop.byteLength,gops.nalCount+=currentGop.nalCount,gops.duration+=currentGop.duration,gops.push(currentGop),gops},frameUtils_extendFirstKeyFrame=function(gops){var currentGop;return!gops[0][0].keyFrame&&gops.length>1&&(currentGop=gops.shift(),gops.byteLength-=currentGop.byteLength,gops.nalCount-=currentGop.nalCount,gops[0][0].dts=currentGop.dts,gops[0][0].pts=currentGop.pts,gops[0][0].duration+=currentGop.duration),gops},frameUtils_generateSampleTable=function(gops,baseDataOffset){var h,i,sample,currentGop,currentFrame,dataOffset=baseDataOffset||0,samples=[];for(h=0;h<gops.length;h++)for(currentGop=gops[h],i=0;i<currentGop.length;i++)currentFrame=currentGop[i],dataOffset+=(sample=sampleForFrame(currentFrame,dataOffset)).size,samples.push(sample);return samples},frameUtils_concatenateNalData=function(gops){var h,i,j,currentGop,currentFrame,currentNal,dataOffset=0,nalsByteLength=gops.byteLength,numberOfNals=gops.nalCount,data=new Uint8Array(nalsByteLength+4*numberOfNals),view=new DataView(data.buffer);for(h=0;h<gops.length;h++)for(currentGop=gops[h],i=0;i<currentGop.length;i++)for(currentFrame=currentGop[i],j=0;j<currentFrame.length;j++)currentNal=currentFrame[j],view.setUint32(dataOffset,currentNal.data.byteLength),dataOffset+=4,data.set(currentNal.data,dataOffset),dataOffset+=currentNal.data.byteLength;return data},highPrefix=[33,16,5,32,164,27],lowPrefix=[33,65,108,84,1,2,4,8,168,2,4,8,17,191,252],zeroFill=function(count){for(var a=[];count--;)a.push(0);return a},silence_1=function(){if(!silence){var coneOfSilence={96e3:[highPrefix,[227,64],zeroFill(154),[56]],88200:[highPrefix,[231],zeroFill(170),[56]],64e3:[highPrefix,[248,192],zeroFill(240),[56]],48e3:[highPrefix,[255,192],zeroFill(268),[55,148,128],zeroFill(54),[112]],44100:[highPrefix,[255,192],zeroFill(268),[55,163,128],zeroFill(84),[112]],32e3:[highPrefix,[255,192],zeroFill(268),[55,234],zeroFill(226),[112]],24e3:[highPrefix,[255,192],zeroFill(268),[55,255,128],zeroFill(268),[111,112],zeroFill(126),[224]],16e3:[highPrefix,[255,192],zeroFill(268),[55,255,128],zeroFill(268),[111,255],zeroFill(269),[223,108],zeroFill(195),[1,192]],12e3:[lowPrefix,zeroFill(268),[3,127,248],zeroFill(268),[6,255,240],zeroFill(268),[13,255,224],zeroFill(268),[27,253,128],zeroFill(259),[56]],11025:[lowPrefix,zeroFill(268),[3,127,248],zeroFill(268),[6,255,240],zeroFill(268),[13,255,224],zeroFill(268),[27,255,192],zeroFill(268),[55,175,128],zeroFill(108),[112]],8e3:[lowPrefix,zeroFill(268),[3,121,16],zeroFill(47),[7]]};metaTable=coneOfSilence,silence=Object.keys(metaTable).reduce((function(obj,key){return obj[key]=new Uint8Array(metaTable[key].reduce((function(arr,part){return arr.concat(part)}),[])),obj}),{})}var metaTable;return silence};audioTsToVideoTs=function(timestamp,sampleRate){return secondsToVideoTs(audioTsToSeconds(timestamp,sampleRate))},videoTsToAudioTs=function(timestamp,sampleRate){return secondsToAudioTs(videoTsToSeconds(timestamp),sampleRate)},metadataTsToSeconds=function(timestamp,timelineStartPts,keepOriginalTimestamps){return videoTsToSeconds(keepOriginalTimestamps?timestamp:timestamp-timelineStartPts)};var clock_ONE_SECOND_IN_TS$0=9e4,clock_secondsToVideoTs$0=secondsToVideoTs=function(seconds){return 9e4*seconds},clock_videoTsToSeconds$0=(secondsToAudioTs=function(seconds,sampleRate){return seconds*sampleRate},videoTsToSeconds=function(timestamp){return timestamp/9e4}),clock_audioTsToVideoTs$0=(audioTsToSeconds=function(timestamp,sampleRate){return timestamp/sampleRate},audioTsToVideoTs),clock_videoTsToAudioTs$0=videoTsToAudioTs,clock_metadataTsToSeconds$0=metadataTsToSeconds,audioFrameUtils_prefixWithSilence=function(track,frames,audioAppendStartTs,videoBaseMediaDecodeTime){var baseMediaDecodeTimeTs,frameDuration,silentFrame,i,firstFrame,audioGapDuration=0,audioFillFrameCount=0,audioFillDuration=0;if(frames.length&&(baseMediaDecodeTimeTs=clock_audioTsToVideoTs$0(track.baseMediaDecodeTime,track.samplerate),frameDuration=Math.ceil(clock_ONE_SECOND_IN_TS$0/(track.samplerate/1024)),audioAppendStartTs&&videoBaseMediaDecodeTime&&(audioGapDuration=baseMediaDecodeTimeTs-Math.max(audioAppendStartTs,videoBaseMediaDecodeTime),audioFillDuration=(audioFillFrameCount=Math.floor(audioGapDuration/frameDuration))*frameDuration),!(audioFillFrameCount<1||audioFillDuration>clock_ONE_SECOND_IN_TS$0/2))){for((silentFrame=silence_1()[track.samplerate])||(silentFrame=frames[0].data),i=0;i<audioFillFrameCount;i++)firstFrame=frames[0],frames.splice(0,0,{data:silentFrame,dts:firstFrame.dts-frameDuration,pts:firstFrame.pts-frameDuration});return track.baseMediaDecodeTime-=Math.floor(clock_videoTsToAudioTs$0(audioFillDuration,track.samplerate)),audioFillDuration}},audioFrameUtils_trimAdtsFramesByEarliestDts=function(adtsFrames,track,earliestAllowedDts){return track.minSegmentDts>=earliestAllowedDts?adtsFrames:(track.minSegmentDts=1/0,adtsFrames.filter((function(currentFrame){return currentFrame.dts>=earliestAllowedDts&&(track.minSegmentDts=Math.min(track.minSegmentDts,currentFrame.dts),track.minSegmentPts=track.minSegmentDts,!0)})))},audioFrameUtils_generateSampleTable=function(frames){var i,currentFrame,samples=[];for(i=0;i<frames.length;i++)currentFrame=frames[i],samples.push({size:currentFrame.data.byteLength,duration:1024});return samples},audioFrameUtils_concatenateFrameData=function(frames){var i,currentFrame,dataOffset=0,data=new Uint8Array(function(array){var i,sum=0;for(i=0;i<array.length;i++)sum+=array[i].data.byteLength;return sum}(frames));for(i=0;i<frames.length;i++)currentFrame=frames[i],data.set(currentFrame.data,dataOffset),dataOffset+=currentFrame.data.byteLength;return data},ONE_SECOND_IN_TS$3=clock_ONE_SECOND_IN_TS$0,trackDecodeInfo_clearDtsInfo=function(track){delete track.minSegmentDts,delete track.maxSegmentDts,delete track.minSegmentPts,delete track.maxSegmentPts},trackDecodeInfo_calculateTrackBaseMediaDecodeTime=function(track,keepOriginalTimestamps){var baseMediaDecodeTime,minSegmentDts=track.minSegmentDts;return keepOriginalTimestamps||(minSegmentDts-=track.timelineStartInfo.dts),baseMediaDecodeTime=track.timelineStartInfo.baseMediaDecodeTime,baseMediaDecodeTime+=minSegmentDts,baseMediaDecodeTime=Math.max(0,baseMediaDecodeTime),"audio"===track.type&&(baseMediaDecodeTime*=track.samplerate/ONE_SECOND_IN_TS$3,baseMediaDecodeTime=Math.floor(baseMediaDecodeTime)),baseMediaDecodeTime},trackDecodeInfo_collectDtsInfo=function(track,data){"number"==typeof data.pts&&(void 0===track.timelineStartInfo.pts&&(track.timelineStartInfo.pts=data.pts),void 0===track.minSegmentPts?track.minSegmentPts=data.pts:track.minSegmentPts=Math.min(track.minSegmentPts,data.pts),void 0===track.maxSegmentPts?track.maxSegmentPts=data.pts:track.maxSegmentPts=Math.max(track.maxSegmentPts,data.pts)),"number"==typeof data.dts&&(void 0===track.timelineStartInfo.dts&&(track.timelineStartInfo.dts=data.dts),void 0===track.minSegmentDts?track.minSegmentDts=data.dts:track.minSegmentDts=Math.min(track.minSegmentDts,data.dts),void 0===track.maxSegmentDts?track.maxSegmentDts=data.dts:track.maxSegmentDts=Math.max(track.maxSegmentDts,data.dts))},captionPacketParser_parseSei=function(bytes){for(var i=0,result={payloadType:-1,payloadSize:0},payloadType=0,payloadSize=0;i<bytes.byteLength&&128!==bytes[i];){for(;255===bytes[i];)payloadType+=255,i++;for(payloadType+=bytes[i++];255===bytes[i];)payloadSize+=255,i++;if(payloadSize+=bytes[i++],!result.payload&&4===payloadType){if("GA94"===String.fromCharCode(bytes[i+3],bytes[i+4],bytes[i+5],bytes[i+6])){result.payloadType=payloadType,result.payloadSize=payloadSize,result.payload=bytes.subarray(i,i+payloadSize);break}result.payload=void 0}i+=payloadSize,payloadType=0,payloadSize=0}return result},captionPacketParser_parseUserData=function(sei){return 181!==sei.payload[0]||49!=(sei.payload[1]<<8|sei.payload[2])||"GA94"!==String.fromCharCode(sei.payload[3],sei.payload[4],sei.payload[5],sei.payload[6])||3!==sei.payload[7]?null:sei.payload.subarray(8,sei.payload.length-1)},captionPacketParser_parseCaptionPackets=function(pts,userData){var i,count,offset,data,results=[];if(!(64&userData[0]))return results;for(count=31&userData[0],i=0;i<count;i++)data={type:3&userData[(offset=3*i)+2],pts:pts},4&userData[offset+2]&&(data.ccData=userData[offset+3]<<8|userData[offset+4],results.push(data));return results},captionPacketParser_discardEmulationPreventionBytes=function(data){for(var newLength,newData,length=data.byteLength,emulationPreventionBytesPositions=[],i=1;i<length-2;)0===data[i]&&0===data[i+1]&&3===data[i+2]?(emulationPreventionBytesPositions.push(i+2),i+=2):i++;if(0===emulationPreventionBytesPositions.length)return data;newLength=length-emulationPreventionBytesPositions.length,newData=new Uint8Array(newLength);var sourceIndex=0;for(i=0;i<newLength;sourceIndex++,i++)sourceIndex===emulationPreventionBytesPositions[0]&&(sourceIndex++,emulationPreventionBytesPositions.shift()),newData[i]=data[sourceIndex];return newData},captionPacketParser_USER_DATA_REGISTERED_ITU_T_T35=4,CaptionStream$1=function CaptionStream(options){options=options||{},CaptionStream.prototype.init.call(this),this.parse708captions_="boolean"!=typeof options.parse708captions||options.parse708captions,this.captionPackets_=[],this.ccStreams_=[new Cea608Stream(0,0),new Cea608Stream(0,1),new Cea608Stream(1,0),new Cea608Stream(1,1)],this.parse708captions_&&(this.cc708Stream_=new Cea708Stream({captionServices:options.captionServices})),this.reset(),this.ccStreams_.forEach((function(cc){cc.on("data",this.trigger.bind(this,"data")),cc.on("partialdone",this.trigger.bind(this,"partialdone")),cc.on("done",this.trigger.bind(this,"done"))}),this),this.parse708captions_&&(this.cc708Stream_.on("data",this.trigger.bind(this,"data")),this.cc708Stream_.on("partialdone",this.trigger.bind(this,"partialdone")),this.cc708Stream_.on("done",this.trigger.bind(this,"done")))};(CaptionStream$1.prototype=new stream).push=function(event){var sei,userData,newCaptionPackets;if("sei_rbsp"===event.nalUnitType&&(sei=captionPacketParser_parseSei(event.escapedRBSP)).payload&&sei.payloadType===captionPacketParser_USER_DATA_REGISTERED_ITU_T_T35&&(userData=captionPacketParser_parseUserData(sei)))if(event.dts<this.latestDts_)this.ignoreNextEqualDts_=!0;else{if(event.dts===this.latestDts_&&this.ignoreNextEqualDts_)return this.numSameDts_--,void(this.numSameDts_||(this.ignoreNextEqualDts_=!1));newCaptionPackets=captionPacketParser_parseCaptionPackets(event.pts,userData),this.captionPackets_=this.captionPackets_.concat(newCaptionPackets),this.latestDts_!==event.dts&&(this.numSameDts_=0),this.numSameDts_++,this.latestDts_=event.dts}},CaptionStream$1.prototype.flushCCStreams=function(flushType){this.ccStreams_.forEach((function(cc){return"flush"===flushType?cc.flush():cc.partialFlush()}),this)},CaptionStream$1.prototype.flushStream=function(flushType){this.captionPackets_.length?(this.captionPackets_.forEach((function(elem,idx){elem.presortIndex=idx})),this.captionPackets_.sort((function(a,b){return a.pts===b.pts?a.presortIndex-b.presortIndex:a.pts-b.pts})),this.captionPackets_.forEach((function(packet){packet.type<2?this.dispatchCea608Packet(packet):this.dispatchCea708Packet(packet)}),this),this.captionPackets_.length=0,this.flushCCStreams(flushType)):this.flushCCStreams(flushType)},CaptionStream$1.prototype.flush=function(){return this.flushStream("flush")},CaptionStream$1.prototype.partialFlush=function(){return this.flushStream("partialFlush")},CaptionStream$1.prototype.reset=function(){this.latestDts_=null,this.ignoreNextEqualDts_=!1,this.numSameDts_=0,this.activeCea608Channel_=[null,null],this.ccStreams_.forEach((function(ccStream){ccStream.reset()}))},CaptionStream$1.prototype.dispatchCea608Packet=function(packet){this.setsTextOrXDSActive(packet)?this.activeCea608Channel_[packet.type]=null:this.setsChannel1Active(packet)?this.activeCea608Channel_[packet.type]=0:this.setsChannel2Active(packet)&&(this.activeCea608Channel_[packet.type]=1),null!==this.activeCea608Channel_[packet.type]&&this.ccStreams_[(packet.type<<1)+this.activeCea608Channel_[packet.type]].push(packet)},CaptionStream$1.prototype.setsChannel1Active=function(packet){return 4096==(30720&packet.ccData)},CaptionStream$1.prototype.setsChannel2Active=function(packet){return 6144==(30720&packet.ccData)},CaptionStream$1.prototype.setsTextOrXDSActive=function(packet){return 256==(28928&packet.ccData)||4138==(30974&packet.ccData)||6186==(30974&packet.ccData)},CaptionStream$1.prototype.dispatchCea708Packet=function(packet){this.parse708captions_&&this.cc708Stream_.push(packet)};var CHARACTER_TRANSLATION_708={127:9834,4128:32,4129:160,4133:8230,4138:352,4140:338,4144:9608,4145:8216,4146:8217,4147:8220,4148:8221,4149:8226,4153:8482,4154:353,4156:339,4157:8480,4159:376,4214:8539,4215:8540,4216:8541,4217:8542,4218:9168,4219:9124,4220:9123,4221:9135,4222:9126,4223:9121,4256:12600},within708TextBlock=function(b){return 32<=b&&b<=127||160<=b&&b<=255},Cea708Window=function(windowNum){this.windowNum=windowNum,this.reset()};Cea708Window.prototype.reset=function(){this.clearText(),this.pendingNewLine=!1,this.winAttr={},this.penAttr={},this.penLoc={},this.penColor={},this.visible=0,this.rowLock=0,this.columnLock=0,this.priority=0,this.relativePositioning=0,this.anchorVertical=0,this.anchorHorizontal=0,this.anchorPoint=0,this.rowCount=1,this.virtualRowCount=this.rowCount+1,this.columnCount=41,this.windowStyle=0,this.penStyle=0},Cea708Window.prototype.getText=function(){return this.rows.join("\n")},Cea708Window.prototype.clearText=function(){this.rows=[""],this.rowIdx=0},Cea708Window.prototype.newLine=function(pts){for(this.rows.length>=this.virtualRowCount&&"function"==typeof this.beforeRowOverflow&&this.beforeRowOverflow(pts),this.rows.length>0&&(this.rows.push(""),this.rowIdx++);this.rows.length>this.virtualRowCount;)this.rows.shift(),this.rowIdx--},Cea708Window.prototype.isEmpty=function(){return 0===this.rows.length||1===this.rows.length&&""===this.rows[0]},Cea708Window.prototype.addText=function(text){this.rows[this.rowIdx]+=text},Cea708Window.prototype.backspace=function(){if(!this.isEmpty()){var row=this.rows[this.rowIdx];this.rows[this.rowIdx]=row.substr(0,row.length-1)}};var Cea708Service=function(serviceNum,encoding,stream){this.serviceNum=serviceNum,this.text="",this.currentWindow=new Cea708Window(-1),this.windows=[],this.stream=stream,"string"==typeof encoding&&this.createTextDecoder(encoding)};Cea708Service.prototype.init=function(pts,beforeRowOverflow){this.startPts=pts;for(var win=0;win<8;win++)this.windows[win]=new Cea708Window(win),"function"==typeof beforeRowOverflow&&(this.windows[win].beforeRowOverflow=beforeRowOverflow)},Cea708Service.prototype.setCurrentWindow=function(windowNum){this.currentWindow=this.windows[windowNum]},Cea708Service.prototype.createTextDecoder=function(encoding){if("undefined"==typeof TextDecoder)this.stream.trigger("log",{level:"warn",message:"The `encoding` option is unsupported without TextDecoder support"});else try{this.textDecoder_=new TextDecoder(encoding)}catch(error){this.stream.trigger("log",{level:"warn",message:"TextDecoder could not be created with "+encoding+" encoding. "+error})}};var Cea708Stream=function Cea708Stream(options){options=options||{},Cea708Stream.prototype.init.call(this);var serviceProps,self=this,captionServices=options.captionServices||{},captionServiceEncodings={};Object.keys(captionServices).forEach((function(serviceName){serviceProps=captionServices[serviceName],/^SERVICE/.test(serviceName)&&(captionServiceEncodings[serviceName]=serviceProps.encoding)})),this.serviceEncodings=captionServiceEncodings,this.current708Packet=null,this.services={},this.push=function(packet){3===packet.type?(self.new708Packet(),self.add708Bytes(packet)):(null===self.current708Packet&&self.new708Packet(),self.add708Bytes(packet))}};Cea708Stream.prototype=new stream,Cea708Stream.prototype.new708Packet=function(){null!==this.current708Packet&&this.push708Packet(),this.current708Packet={data:[],ptsVals:[]}},Cea708Stream.prototype.add708Bytes=function(packet){var data=packet.ccData,byte0=data>>>8,byte1=255&data;this.current708Packet.ptsVals.push(packet.pts),this.current708Packet.data.push(byte0),this.current708Packet.data.push(byte1)},Cea708Stream.prototype.push708Packet=function(){var packet708=this.current708Packet,packetData=packet708.data,serviceNum=null,blockSize=null,i=0,b=packetData[i++];for(packet708.seq=b>>6,packet708.sizeCode=63&b;i<packetData.length;i++)blockSize=31&(b=packetData[i++]),7===(serviceNum=b>>5)&&blockSize>0&&(serviceNum=b=packetData[i++]),this.pushServiceBlock(serviceNum,i,blockSize),blockSize>0&&(i+=blockSize-1)},Cea708Stream.prototype.pushServiceBlock=function(serviceNum,start,size){var b,i=start,packetData=this.current708Packet.data,service=this.services[serviceNum];for(service||(service=this.initService(serviceNum,i));i<start+size&&i<packetData.length;i++)b=packetData[i],within708TextBlock(b)?i=this.handleText(i,service):24===b?i=this.multiByteCharacter(i,service):16===b?i=this.extendedCommands(i,service):128<=b&&b<=135?i=this.setCurrentWindow(i,service):152<=b&&b<=159?i=this.defineWindow(i,service):136===b?i=this.clearWindows(i,service):140===b?i=this.deleteWindows(i,service):137===b?i=this.displayWindows(i,service):138===b?i=this.hideWindows(i,service):139===b?i=this.toggleWindows(i,service):151===b?i=this.setWindowAttributes(i,service):144===b?i=this.setPenAttributes(i,service):145===b?i=this.setPenColor(i,service):146===b?i=this.setPenLocation(i,service):143===b?service=this.reset(i,service):8===b?service.currentWindow.backspace():12===b?service.currentWindow.clearText():13===b?service.currentWindow.pendingNewLine=!0:14===b?service.currentWindow.clearText():141===b&&i++},Cea708Stream.prototype.extendedCommands=function(i,service){var b=this.current708Packet.data[++i];return within708TextBlock(b)&&(i=this.handleText(i,service,{isExtended:!0})),i},Cea708Stream.prototype.getPts=function(byteIndex){return this.current708Packet.ptsVals[Math.floor(byteIndex/2)]},Cea708Stream.prototype.initService=function(serviceNum,i){var serviceName,encoding,self=this;return(serviceName="SERVICE"+serviceNum)in this.serviceEncodings&&(encoding=this.serviceEncodings[serviceName]),this.services[serviceNum]=new Cea708Service(serviceNum,encoding,self),this.services[serviceNum].init(this.getPts(i),(function(pts){self.flushDisplayed(pts,self.services[serviceNum])})),this.services[serviceNum]},Cea708Stream.prototype.handleText=function(i,service,options){var _char,charCodeArray,code,newCode,isExtended=options&&options.isExtended,isMultiByte=options&&options.isMultiByte,packetData=this.current708Packet.data,extended=isExtended?4096:0,currentByte=packetData[i],nextByte=packetData[i+1],win=service.currentWindow;return service.textDecoder_&&!isExtended?(isMultiByte?(charCodeArray=[currentByte,nextByte],i++):charCodeArray=[currentByte],_char=service.textDecoder_.decode(new Uint8Array(charCodeArray))):(newCode=CHARACTER_TRANSLATION_708[code=extended|currentByte]||code,_char=4096&code&&code===newCode?"":String.fromCharCode(newCode)),win.pendingNewLine&&!win.isEmpty()&&win.newLine(this.getPts(i)),win.pendingNewLine=!1,win.addText(_char),i},Cea708Stream.prototype.multiByteCharacter=function(i,service){var packetData=this.current708Packet.data,firstByte=packetData[i+1],secondByte=packetData[i+2];return within708TextBlock(firstByte)&&within708TextBlock(secondByte)&&(i=this.handleText(++i,service,{isMultiByte:!0})),i},Cea708Stream.prototype.setCurrentWindow=function(i,service){var windowNum=7&this.current708Packet.data[i];return service.setCurrentWindow(windowNum),i},Cea708Stream.prototype.defineWindow=function(i,service){var packetData=this.current708Packet.data,b=packetData[i],windowNum=7&b;service.setCurrentWindow(windowNum);var win=service.currentWindow;return b=packetData[++i],win.visible=(32&b)>>5,win.rowLock=(16&b)>>4,win.columnLock=(8&b)>>3,win.priority=7&b,b=packetData[++i],win.relativePositioning=(128&b)>>7,win.anchorVertical=127&b,b=packetData[++i],win.anchorHorizontal=b,b=packetData[++i],win.anchorPoint=(240&b)>>4,win.rowCount=15&b,b=packetData[++i],win.columnCount=63&b,b=packetData[++i],win.windowStyle=(56&b)>>3,win.penStyle=7&b,win.virtualRowCount=win.rowCount+1,i},Cea708Stream.prototype.setWindowAttributes=function(i,service){var packetData=this.current708Packet.data,b=packetData[i],winAttr=service.currentWindow.winAttr;return b=packetData[++i],winAttr.fillOpacity=(192&b)>>6,winAttr.fillRed=(48&b)>>4,winAttr.fillGreen=(12&b)>>2,winAttr.fillBlue=3&b,b=packetData[++i],winAttr.borderType=(192&b)>>6,winAttr.borderRed=(48&b)>>4,winAttr.borderGreen=(12&b)>>2,winAttr.borderBlue=3&b,b=packetData[++i],winAttr.borderType+=(128&b)>>5,winAttr.wordWrap=(64&b)>>6,winAttr.printDirection=(48&b)>>4,winAttr.scrollDirection=(12&b)>>2,winAttr.justify=3&b,b=packetData[++i],winAttr.effectSpeed=(240&b)>>4,winAttr.effectDirection=(12&b)>>2,winAttr.displayEffect=3&b,i},Cea708Stream.prototype.flushDisplayed=function(pts,service){for(var displayedText=[],winId=0;winId<8;winId++)service.windows[winId].visible&&!service.windows[winId].isEmpty()&&displayedText.push(service.windows[winId].getText());service.endPts=pts,service.text=displayedText.join("\n\n"),this.pushCaption(service),service.startPts=pts},Cea708Stream.prototype.pushCaption=function(service){""!==service.text&&(this.trigger("data",{startPts:service.startPts,endPts:service.endPts,text:service.text,stream:"cc708_"+service.serviceNum}),service.text="",service.startPts=service.endPts)},Cea708Stream.prototype.displayWindows=function(i,service){var b=this.current708Packet.data[++i],pts=this.getPts(i);this.flushDisplayed(pts,service);for(var winId=0;winId<8;winId++)b&1<<winId&&(service.windows[winId].visible=1);return i},Cea708Stream.prototype.hideWindows=function(i,service){var b=this.current708Packet.data[++i],pts=this.getPts(i);this.flushDisplayed(pts,service);for(var winId=0;winId<8;winId++)b&1<<winId&&(service.windows[winId].visible=0);return i},Cea708Stream.prototype.toggleWindows=function(i,service){var b=this.current708Packet.data[++i],pts=this.getPts(i);this.flushDisplayed(pts,service);for(var winId=0;winId<8;winId++)b&1<<winId&&(service.windows[winId].visible^=1);return i},Cea708Stream.prototype.clearWindows=function(i,service){var b=this.current708Packet.data[++i],pts=this.getPts(i);this.flushDisplayed(pts,service);for(var winId=0;winId<8;winId++)b&1<<winId&&service.windows[winId].clearText();return i},Cea708Stream.prototype.deleteWindows=function(i,service){var b=this.current708Packet.data[++i],pts=this.getPts(i);this.flushDisplayed(pts,service);for(var winId=0;winId<8;winId++)b&1<<winId&&service.windows[winId].reset();return i},Cea708Stream.prototype.setPenAttributes=function(i,service){var packetData=this.current708Packet.data,b=packetData[i],penAttr=service.currentWindow.penAttr;return b=packetData[++i],penAttr.textTag=(240&b)>>4,penAttr.offset=(12&b)>>2,penAttr.penSize=3&b,b=packetData[++i],penAttr.italics=(128&b)>>7,penAttr.underline=(64&b)>>6,penAttr.edgeType=(56&b)>>3,penAttr.fontStyle=7&b,i},Cea708Stream.prototype.setPenColor=function(i,service){var packetData=this.current708Packet.data,b=packetData[i],penColor=service.currentWindow.penColor;return b=packetData[++i],penColor.fgOpacity=(192&b)>>6,penColor.fgRed=(48&b)>>4,penColor.fgGreen=(12&b)>>2,penColor.fgBlue=3&b,b=packetData[++i],penColor.bgOpacity=(192&b)>>6,penColor.bgRed=(48&b)>>4,penColor.bgGreen=(12&b)>>2,penColor.bgBlue=3&b,b=packetData[++i],penColor.edgeRed=(48&b)>>4,penColor.edgeGreen=(12&b)>>2,penColor.edgeBlue=3&b,i},Cea708Stream.prototype.setPenLocation=function(i,service){var packetData=this.current708Packet.data,b=packetData[i],penLoc=service.currentWindow.penLoc;return service.currentWindow.pendingNewLine=!0,b=packetData[++i],penLoc.row=15&b,b=packetData[++i],penLoc.column=63&b,i},Cea708Stream.prototype.reset=function(i,service){var pts=this.getPts(i);return this.flushDisplayed(pts,service),this.initService(service.serviceNum,i)};var CHARACTER_TRANSLATION={42:225,92:233,94:237,95:243,96:250,123:231,124:247,125:209,126:241,127:9608,304:174,305:176,306:189,307:191,308:8482,309:162,310:163,311:9834,312:224,313:160,314:232,315:226,316:234,317:238,318:244,319:251,544:193,545:201,546:211,547:218,548:220,549:252,550:8216,551:161,552:42,553:39,554:8212,555:169,556:8480,557:8226,558:8220,559:8221,560:192,561:194,562:199,563:200,564:202,565:203,566:235,567:206,568:207,569:239,570:212,571:217,572:249,573:219,574:171,575:187,800:195,801:227,802:205,803:204,804:236,805:210,806:242,807:213,808:245,809:123,810:125,811:92,812:94,813:95,814:124,815:126,816:196,817:228,818:214,819:246,820:223,821:165,822:164,823:9474,824:197,825:229,826:216,827:248,828:9484,829:9488,830:9492,831:9496},getCharFromCode=function(code){return null===code?"":(code=CHARACTER_TRANSLATION[code]||code,String.fromCharCode(code))},ROWS=[4352,4384,4608,4640,5376,5408,5632,5664,5888,5920,4096,4864,4896,5120,5152],createDisplayBuffer=function(){for(var result=[],i=15;i--;)result.push("");return result},Cea608Stream=function Cea608Stream(field,dataChannel){Cea608Stream.prototype.init.call(this),this.field_=field||0,this.dataChannel_=dataChannel||0,this.name_="CC"+(1+(this.field_<<1|this.dataChannel_)),this.setConstants(),this.reset(),this.push=function(packet){var data,swap,char0,char1,text;if((data=32639&packet.ccData)!==this.lastControlCode_){if(4096==(61440&data)?this.lastControlCode_=data:data!==this.PADDING_&&(this.lastControlCode_=null),char0=data>>>8,char1=255&data,data!==this.PADDING_)if(data===this.RESUME_CAPTION_LOADING_)this.mode_="popOn";else if(data===this.END_OF_CAPTION_)this.mode_="popOn",this.clearFormatting(packet.pts),this.flushDisplayed(packet.pts),swap=this.displayed_,this.displayed_=this.nonDisplayed_,this.nonDisplayed_=swap,this.startPts_=packet.pts;else if(data===this.ROLL_UP_2_ROWS_)this.rollUpRows_=2,this.setRollUp(packet.pts);else if(data===this.ROLL_UP_3_ROWS_)this.rollUpRows_=3,this.setRollUp(packet.pts);else if(data===this.ROLL_UP_4_ROWS_)this.rollUpRows_=4,this.setRollUp(packet.pts);else if(data===this.CARRIAGE_RETURN_)this.clearFormatting(packet.pts),this.flushDisplayed(packet.pts),this.shiftRowsUp_(),this.startPts_=packet.pts;else if(data===this.BACKSPACE_)"popOn"===this.mode_?this.nonDisplayed_[this.row_]=this.nonDisplayed_[this.row_].slice(0,-1):this.displayed_[this.row_]=this.displayed_[this.row_].slice(0,-1);else if(data===this.ERASE_DISPLAYED_MEMORY_)this.flushDisplayed(packet.pts),this.displayed_=createDisplayBuffer();else if(data===this.ERASE_NON_DISPLAYED_MEMORY_)this.nonDisplayed_=createDisplayBuffer();else if(data===this.RESUME_DIRECT_CAPTIONING_)"paintOn"!==this.mode_&&(this.flushDisplayed(packet.pts),this.displayed_=createDisplayBuffer()),this.mode_="paintOn",this.startPts_=packet.pts;else if(this.isSpecialCharacter(char0,char1))text=getCharFromCode((char0=(3&char0)<<8)|char1),this[this.mode_](packet.pts,text),this.column_++;else if(this.isExtCharacter(char0,char1))"popOn"===this.mode_?this.nonDisplayed_[this.row_]=this.nonDisplayed_[this.row_].slice(0,-1):this.displayed_[this.row_]=this.displayed_[this.row_].slice(0,-1),text=getCharFromCode((char0=(3&char0)<<8)|char1),this[this.mode_](packet.pts,text),this.column_++;else if(this.isMidRowCode(char0,char1))this.clearFormatting(packet.pts),this[this.mode_](packet.pts," "),this.column_++,14==(14&char1)&&this.addFormatting(packet.pts,["i"]),1==(1&char1)&&this.addFormatting(packet.pts,["u"]);else if(this.isOffsetControlCode(char0,char1))this.column_+=3&char1;else if(this.isPAC(char0,char1)){var row=ROWS.indexOf(7968&data);"rollUp"===this.mode_&&(row-this.rollUpRows_+1<0&&(row=this.rollUpRows_-1),this.setRollUp(packet.pts,row)),row!==this.row_&&(this.clearFormatting(packet.pts),this.row_=row),1&char1&&-1===this.formatting_.indexOf("u")&&this.addFormatting(packet.pts,["u"]),16==(16&data)&&(this.column_=4*((14&data)>>1)),this.isColorPAC(char1)&&14==(14&char1)&&this.addFormatting(packet.pts,["i"])}else this.isNormalChar(char0)&&(0===char1&&(char1=null),text=getCharFromCode(char0),text+=getCharFromCode(char1),this[this.mode_](packet.pts,text),this.column_+=text.length)}else this.lastControlCode_=null}};Cea608Stream.prototype=new stream,Cea608Stream.prototype.flushDisplayed=function(pts){var content=this.displayed_.map((function(row,index){try{return row.trim()}catch(e){return this.trigger("log",{level:"warn",message:"Skipping a malformed 608 caption at index "+index+"."}),""}}),this).join("\n").replace(/^\n+|\n+$/g,"");content.length&&this.trigger("data",{startPts:this.startPts_,endPts:pts,text:content,stream:this.name_})},Cea608Stream.prototype.reset=function(){this.mode_="popOn",this.topRow_=0,this.startPts_=0,this.displayed_=createDisplayBuffer(),this.nonDisplayed_=createDisplayBuffer(),this.lastControlCode_=null,this.column_=0,this.row_=14,this.rollUpRows_=2,this.formatting_=[]},Cea608Stream.prototype.setConstants=function(){0===this.dataChannel_?(this.BASE_=16,this.EXT_=17,this.CONTROL_=(20|this.field_)<<8,this.OFFSET_=23):1===this.dataChannel_&&(this.BASE_=24,this.EXT_=25,this.CONTROL_=(28|this.field_)<<8,this.OFFSET_=31),this.PADDING_=0,this.RESUME_CAPTION_LOADING_=32|this.CONTROL_,this.END_OF_CAPTION_=47|this.CONTROL_,this.ROLL_UP_2_ROWS_=37|this.CONTROL_,this.ROLL_UP_3_ROWS_=38|this.CONTROL_,this.ROLL_UP_4_ROWS_=39|this.CONTROL_,this.CARRIAGE_RETURN_=45|this.CONTROL_,this.RESUME_DIRECT_CAPTIONING_=41|this.CONTROL_,this.BACKSPACE_=33|this.CONTROL_,this.ERASE_DISPLAYED_MEMORY_=44|this.CONTROL_,this.ERASE_NON_DISPLAYED_MEMORY_=46|this.CONTROL_},Cea608Stream.prototype.isSpecialCharacter=function(char0,char1){return char0===this.EXT_&&char1>=48&&char1<=63},Cea608Stream.prototype.isExtCharacter=function(char0,char1){return(char0===this.EXT_+1||char0===this.EXT_+2)&&char1>=32&&char1<=63},Cea608Stream.prototype.isMidRowCode=function(char0,char1){return char0===this.EXT_&&char1>=32&&char1<=47},Cea608Stream.prototype.isOffsetControlCode=function(char0,char1){return char0===this.OFFSET_&&char1>=33&&char1<=35},Cea608Stream.prototype.isPAC=function(char0,char1){return char0>=this.BASE_&&char0<this.BASE_+8&&char1>=64&&char1<=127},Cea608Stream.prototype.isColorPAC=function(char1){return char1>=64&&char1<=79||char1>=96&&char1<=127},Cea608Stream.prototype.isNormalChar=function(_char2){return _char2>=32&&_char2<=127},Cea608Stream.prototype.setRollUp=function(pts,newBaseRow){if("rollUp"!==this.mode_&&(this.row_=14,this.mode_="rollUp",this.flushDisplayed(pts),this.nonDisplayed_=createDisplayBuffer(),this.displayed_=createDisplayBuffer()),void 0!==newBaseRow&&newBaseRow!==this.row_)for(var i=0;i<this.rollUpRows_;i++)this.displayed_[newBaseRow-i]=this.displayed_[this.row_-i],this.displayed_[this.row_-i]="";void 0===newBaseRow&&(newBaseRow=this.row_),this.topRow_=newBaseRow-this.rollUpRows_+1},Cea608Stream.prototype.addFormatting=function(pts,format){this.formatting_=this.formatting_.concat(format);var text=format.reduce((function(text,format){return text+"<"+format+">"}),"");this[this.mode_](pts,text)},Cea608Stream.prototype.clearFormatting=function(pts){if(this.formatting_.length){var text=this.formatting_.reverse().reduce((function(text,format){return text+"</"+format+">"}),"");this.formatting_=[],this[this.mode_](pts,text)}},Cea608Stream.prototype.popOn=function(pts,text){var baseRow=this.nonDisplayed_[this.row_];baseRow+=text,this.nonDisplayed_[this.row_]=baseRow},Cea608Stream.prototype.rollUp=function(pts,text){var baseRow=this.displayed_[this.row_];baseRow+=text,this.displayed_[this.row_]=baseRow},Cea608Stream.prototype.shiftRowsUp_=function(){var i;for(i=0;i<this.topRow_;i++)this.displayed_[i]="";for(i=this.row_+1;i<15;i++)this.displayed_[i]="";for(i=this.topRow_;i<this.row_;i++)this.displayed_[i]=this.displayed_[i+1];this.displayed_[this.row_]=""},Cea608Stream.prototype.paintOn=function(pts,text){var baseRow=this.displayed_[this.row_];baseRow+=text,this.displayed_[this.row_]=baseRow};var captionStream={CaptionStream:CaptionStream$1,Cea608Stream:Cea608Stream,Cea708Stream:Cea708Stream},streamTypes={H264_STREAM_TYPE:27,ADTS_STREAM_TYPE:15,METADATA_STREAM_TYPE:21},handleRollover$1=function(value,reference){var direction=1;for(value>reference&&(direction=-1);Math.abs(reference-value)>4294967296;)value+=8589934592*direction;return value},TimestampRolloverStream$1=function TimestampRolloverStream(type){var lastDTS,referenceDTS;TimestampRolloverStream.prototype.init.call(this),this.type_=type||"shared",this.push=function(data){"shared"!==this.type_&&data.type!==this.type_||(void 0===referenceDTS&&(referenceDTS=data.dts),data.dts=handleRollover$1(data.dts,referenceDTS),data.pts=handleRollover$1(data.pts,referenceDTS),lastDTS=data.dts,this.trigger("data",data))},this.flush=function(){referenceDTS=lastDTS,this.trigger("done")},this.endTimeline=function(){this.flush(),this.trigger("endedtimeline")},this.discontinuity=function(){referenceDTS=void 0,lastDTS=void 0},this.reset=function(){this.discontinuity(),this.trigger("reset")}};TimestampRolloverStream$1.prototype=new stream;var _MetadataStream,timestampRolloverStream_TimestampRolloverStream=TimestampRolloverStream$1,timestampRolloverStream_handleRollover=handleRollover$1,percentEncode$1=function(bytes,start,end){var i,result="";for(i=start;i<end;i++)result+="%"+("00"+bytes[i].toString(16)).slice(-2);return result},parseUtf8=function(bytes,start,end){return decodeURIComponent(percentEncode$1(bytes,start,end))},parseSyncSafeInteger$1=function(data){return data[0]<<21|data[1]<<14|data[2]<<7|data[3]},tagParsers={TXXX:function(tag){var i;if(3===tag.data[0]){for(i=1;i<tag.data.length;i++)if(0===tag.data[i]){tag.description=parseUtf8(tag.data,1,i),tag.value=parseUtf8(tag.data,i+1,tag.data.length).replace(/\0*$/,"");break}tag.data=tag.value}},WXXX:function(tag){var i;if(3===tag.data[0])for(i=1;i<tag.data.length;i++)if(0===tag.data[i]){tag.description=parseUtf8(tag.data,1,i),tag.url=parseUtf8(tag.data,i+1,tag.data.length);break}},PRIV:function(tag){var i,bytes;for(i=0;i<tag.data.length;i++)if(0===tag.data[i]){tag.owner=(bytes=tag.data,unescape(percentEncode$1(bytes,0,i)));break}tag.privateData=tag.data.subarray(i+1),tag.data=tag.privateData}};_MetadataStream=function(options){var i,settings={descriptor:options&&options.descriptor},tagSize=0,buffer=[],bufferSize=0;if(_MetadataStream.prototype.init.call(this),this.dispatchType=streamTypes.METADATA_STREAM_TYPE.toString(16),settings.descriptor)for(i=0;i<settings.descriptor.length;i++)this.dispatchType+=("00"+settings.descriptor[i].toString(16)).slice(-2);this.push=function(chunk){var tag,frameStart,frameSize,frame,i;if("timed-metadata"===chunk.type)if(chunk.dataAlignmentIndicator&&(bufferSize=0,buffer.length=0),0===buffer.length&&(chunk.data.length<10||chunk.data[0]!=="I".charCodeAt(0)||chunk.data[1]!=="D".charCodeAt(0)||chunk.data[2]!=="3".charCodeAt(0)))this.trigger("log",{level:"warn",message:"Skipping unrecognized metadata packet"});else if(buffer.push(chunk),bufferSize+=chunk.data.byteLength,1===buffer.length&&(tagSize=parseSyncSafeInteger$1(chunk.data.subarray(6,10)),tagSize+=10),!(bufferSize<tagSize)){for(tag={data:new Uint8Array(tagSize),frames:[],pts:buffer[0].pts,dts:buffer[0].dts},i=0;i<tagSize;)tag.data.set(buffer[0].data.subarray(0,tagSize-i),i),i+=buffer[0].data.byteLength,bufferSize-=buffer[0].data.byteLength,buffer.shift();frameStart=10,64&tag.data[5]&&(frameStart+=4,frameStart+=parseSyncSafeInteger$1(tag.data.subarray(10,14)),tagSize-=parseSyncSafeInteger$1(tag.data.subarray(16,20)));do{if((frameSize=parseSyncSafeInteger$1(tag.data.subarray(frameStart+4,frameStart+8)))<1)return void this.trigger("log",{level:"warn",message:"Malformed ID3 frame encountered. Skipping metadata parsing."});if((frame={id:String.fromCharCode(tag.data[frameStart],tag.data[frameStart+1],tag.data[frameStart+2],tag.data[frameStart+3]),data:tag.data.subarray(frameStart+10,frameStart+frameSize+10)}).key=frame.id,tagParsers[frame.id]&&(tagParsers[frame.id](frame),"com.apple.streaming.transportStreamTimestamp"===frame.owner)){var d=frame.data,size=(1&d[3])<<30|d[4]<<22|d[5]<<14|d[6]<<6|d[7]>>>2;size*=4,size+=3&d[7],frame.timeStamp=size,void 0===tag.pts&&void 0===tag.dts&&(tag.pts=frame.timeStamp,tag.dts=frame.timeStamp),this.trigger("timestamp",frame)}tag.frames.push(frame),frameStart+=10,frameStart+=frameSize}while(frameStart<tagSize);this.trigger("data",tag)}}},_MetadataStream.prototype=new stream;var _TransportPacketStream,_TransportParseStream,_ElementaryStream,metadataStream=_MetadataStream,TimestampRolloverStream=timestampRolloverStream_TimestampRolloverStream;(_TransportPacketStream=function(){var buffer=new Uint8Array(188),bytesInBuffer=0;_TransportPacketStream.prototype.init.call(this),this.push=function(bytes){var everything,startIndex=0,endIndex=188;for(bytesInBuffer?((everything=new Uint8Array(bytes.byteLength+bytesInBuffer)).set(buffer.subarray(0,bytesInBuffer)),everything.set(bytes,bytesInBuffer),bytesInBuffer=0):everything=bytes;endIndex<everything.byteLength;)71!==everything[startIndex]||71!==everything[endIndex]?(startIndex++,endIndex++):(this.trigger("data",everything.subarray(startIndex,endIndex)),startIndex+=188,endIndex+=188);startIndex<everything.byteLength&&(buffer.set(everything.subarray(startIndex),0),bytesInBuffer=everything.byteLength-startIndex)},this.flush=function(){188===bytesInBuffer&&71===buffer[0]&&(this.trigger("data",buffer),bytesInBuffer=0),this.trigger("done")},this.endTimeline=function(){this.flush(),this.trigger("endedtimeline")},this.reset=function(){bytesInBuffer=0,this.trigger("reset")}}).prototype=new stream,_TransportParseStream=function(){var parsePsi,parsePat,parsePmt,self;_TransportParseStream.prototype.init.call(this),self=this,this.packetsWaitingForPmt=[],this.programMapTable=void 0,parsePsi=function(payload,psi){var offset=0;psi.payloadUnitStartIndicator&&(offset+=payload[offset]+1),"pat"===psi.type?parsePat(payload.subarray(offset),psi):parsePmt(payload.subarray(offset),psi)},parsePat=function(payload,pat){pat.section_number=payload[7],pat.last_section_number=payload[8],self.pmtPid=(31&payload[10])<<8|payload[11],pat.pmtPid=self.pmtPid},parsePmt=function(payload,pmt){var tableEnd,offset;if(1&payload[5]){for(self.programMapTable={video:null,audio:null,"timed-metadata":{}},tableEnd=3+((15&payload[1])<<8|payload[2])-4,offset=12+((15&payload[10])<<8|payload[11]);offset<tableEnd;){var streamType=payload[offset],pid=(31&payload[offset+1])<<8|payload[offset+2];streamType===streamTypes.H264_STREAM_TYPE&&null===self.programMapTable.video?self.programMapTable.video=pid:streamType===streamTypes.ADTS_STREAM_TYPE&&null===self.programMapTable.audio?self.programMapTable.audio=pid:streamType===streamTypes.METADATA_STREAM_TYPE&&(self.programMapTable["timed-metadata"][pid]=streamType),offset+=5+((15&payload[offset+3])<<8|payload[offset+4])}pmt.programMapTable=self.programMapTable}},this.push=function(packet){var result={},offset=4;if(result.payloadUnitStartIndicator=!!(64&packet[1]),result.pid=31&packet[1],result.pid<<=8,result.pid|=packet[2],(48&packet[3])>>>4>1&&(offset+=packet[offset]+1),0===result.pid)result.type="pat",parsePsi(packet.subarray(offset),result),this.trigger("data",result);else if(result.pid===this.pmtPid)for(result.type="pmt",parsePsi(packet.subarray(offset),result),this.trigger("data",result);this.packetsWaitingForPmt.length;)this.processPes_.apply(this,this.packetsWaitingForPmt.shift());else void 0===this.programMapTable?this.packetsWaitingForPmt.push([packet,offset,result]):this.processPes_(packet,offset,result)},this.processPes_=function(packet,offset,result){result.pid===this.programMapTable.video?result.streamType=streamTypes.H264_STREAM_TYPE:result.pid===this.programMapTable.audio?result.streamType=streamTypes.ADTS_STREAM_TYPE:result.streamType=this.programMapTable["timed-metadata"][result.pid],result.type="pes",result.data=packet.subarray(offset),this.trigger("data",result)}},_TransportParseStream.prototype=new stream,_TransportParseStream.STREAM_TYPES={h264:27,adts:15},_ElementaryStream=function(){var programMapTable,self=this,segmentHadPmt=!1,video={data:[],size:0},audio={data:[],size:0},timedMetadata={data:[],size:0},flushStream=function(stream,type,forceFlush){var packetFlushable,fragment,packetData=new Uint8Array(stream.size),event={type:type},i=0,offset=0;if(stream.data.length&&!(stream.size<9)){for(event.trackId=stream.data[0].pid,i=0;i<stream.data.length;i++)fragment=stream.data[i],packetData.set(fragment.data,offset),offset+=fragment.data.byteLength;var payload,pes,ptsDtsFlags,startPrefix;pes=event,startPrefix=(payload=packetData)[0]<<16|payload[1]<<8|payload[2],pes.data=new Uint8Array,1===startPrefix&&(pes.packetLength=6+(payload[4]<<8|payload[5]),pes.dataAlignmentIndicator=0!=(4&payload[6]),192&(ptsDtsFlags=payload[7])&&(pes.pts=(14&payload[9])<<27|(255&payload[10])<<20|(254&payload[11])<<12|(255&payload[12])<<5|(254&payload[13])>>>3,pes.pts*=4,pes.pts+=(6&payload[13])>>>1,pes.dts=pes.pts,64&ptsDtsFlags&&(pes.dts=(14&payload[14])<<27|(255&payload[15])<<20|(254&payload[16])<<12|(255&payload[17])<<5|(254&payload[18])>>>3,pes.dts*=4,pes.dts+=(6&payload[18])>>>1)),pes.data=payload.subarray(9+payload[8])),packetFlushable="video"===type||event.packetLength<=stream.size,(forceFlush||packetFlushable)&&(stream.size=0,stream.data.length=0),packetFlushable&&self.trigger("data",event)}};_ElementaryStream.prototype.init.call(this),this.push=function(data){({pat:function(){},pes:function(){var stream,streamType;switch(data.streamType){case streamTypes.H264_STREAM_TYPE:stream=video,streamType="video";break;case streamTypes.ADTS_STREAM_TYPE:stream=audio,streamType="audio";break;case streamTypes.METADATA_STREAM_TYPE:stream=timedMetadata,streamType="timed-metadata";break;default:return}data.payloadUnitStartIndicator&&flushStream(stream,streamType,!0),stream.data.push(data),stream.size+=data.data.byteLength},pmt:function(){var event={type:"metadata",tracks:[]};null!==(programMapTable=data.programMapTable).video&&event.tracks.push({timelineStartInfo:{baseMediaDecodeTime:0},id:+programMapTable.video,codec:"avc",type:"video"}),null!==programMapTable.audio&&event.tracks.push({timelineStartInfo:{baseMediaDecodeTime:0},id:+programMapTable.audio,codec:"adts",type:"audio"}),segmentHadPmt=!0,self.trigger("data",event)}})[data.type]()},this.reset=function(){video.size=0,video.data.length=0,audio.size=0,audio.data.length=0,this.trigger("reset")},this.flushStreams_=function(){flushStream(video,"video"),flushStream(audio,"audio"),flushStream(timedMetadata,"timed-metadata")},this.flush=function(){if(!segmentHadPmt&&programMapTable){var pmt={type:"metadata",tracks:[]};null!==programMapTable.video&&pmt.tracks.push({timelineStartInfo:{baseMediaDecodeTime:0},id:+programMapTable.video,codec:"avc",type:"video"}),null!==programMapTable.audio&&pmt.tracks.push({timelineStartInfo:{baseMediaDecodeTime:0},id:+programMapTable.audio,codec:"adts",type:"audio"}),self.trigger("data",pmt)}segmentHadPmt=!1,this.flushStreams_(),this.trigger("done")}},_ElementaryStream.prototype=new stream;var m2ts={PAT_PID:0,MP2T_PACKET_LENGTH:188,TransportPacketStream:_TransportPacketStream,TransportParseStream:_TransportParseStream,ElementaryStream:_ElementaryStream,TimestampRolloverStream:TimestampRolloverStream,CaptionStream:captionStream.CaptionStream,Cea608Stream:captionStream.Cea608Stream,Cea708Stream:captionStream.Cea708Stream,MetadataStream:metadataStream};for(var type in streamTypes)streamTypes.hasOwnProperty(type)&&(m2ts[type]=streamTypes[type]);var _AdtsStream,m2ts_1=m2ts,ONE_SECOND_IN_TS$2=clock_ONE_SECOND_IN_TS$0,ADTS_SAMPLING_FREQUENCIES$1=[96e3,88200,64e3,48e3,44100,32e3,24e3,22050,16e3,12e3,11025,8e3,7350];_AdtsStream=function(handlePartialSegments){var buffer,frameNum=0;_AdtsStream.prototype.init.call(this),this.skipWarn_=function(start,end){this.trigger("log",{level:"warn",message:"adts skiping bytes "+start+" to "+end+" in frame "+frameNum+" outside syncword"})},this.push=function(packet){var frameLength,protectionSkipBytes,oldBuffer,sampleCount,adtsFrameDuration,i=0;if(handlePartialSegments||(frameNum=0),"audio"===packet.type){var skip;for(buffer&&buffer.length?(oldBuffer=buffer,(buffer=new Uint8Array(oldBuffer.byteLength+packet.data.byteLength)).set(oldBuffer),buffer.set(packet.data,oldBuffer.byteLength)):buffer=packet.data;i+7<buffer.length;)if(255===buffer[i]&&240==(246&buffer[i+1])){if("number"==typeof skip&&(this.skipWarn_(skip,i),skip=null),protectionSkipBytes=2*(1&~buffer[i+1]),frameLength=(3&buffer[i+3])<<11|buffer[i+4]<<3|(224&buffer[i+5])>>5,adtsFrameDuration=(sampleCount=1024*(1+(3&buffer[i+6])))*ONE_SECOND_IN_TS$2/ADTS_SAMPLING_FREQUENCIES$1[(60&buffer[i+2])>>>2],buffer.byteLength-i<frameLength)break;this.trigger("data",{pts:packet.pts+frameNum*adtsFrameDuration,dts:packet.dts+frameNum*adtsFrameDuration,sampleCount:sampleCount,audioobjecttype:1+(buffer[i+2]>>>6&3),channelcount:(1&buffer[i+2])<<2|(192&buffer[i+3])>>>6,samplerate:ADTS_SAMPLING_FREQUENCIES$1[(60&buffer[i+2])>>>2],samplingfrequencyindex:(60&buffer[i+2])>>>2,samplesize:16,data:buffer.subarray(i+7+protectionSkipBytes,i+frameLength)}),frameNum++,i+=frameLength}else"number"!=typeof skip&&(skip=i),i++;"number"==typeof skip&&(this.skipWarn_(skip,i),skip=null),buffer=buffer.subarray(i)}},this.flush=function(){frameNum=0,this.trigger("done")},this.reset=function(){buffer=void 0,this.trigger("reset")},this.endTimeline=function(){buffer=void 0,this.trigger("endedtimeline")}},_AdtsStream.prototype=new stream;var ExpGolomb,adts=_AdtsStream;ExpGolomb=function(workingData){var workingBytesAvailable=workingData.byteLength,workingWord=0,workingBitsAvailable=0;this.length=function(){return 8*workingBytesAvailable},this.bitsAvailable=function(){return 8*workingBytesAvailable+workingBitsAvailable},this.loadWord=function(){var position=workingData.byteLength-workingBytesAvailable,workingBytes=new Uint8Array(4),availableBytes=Math.min(4,workingBytesAvailable);if(0===availableBytes)throw new Error("no bytes available");workingBytes.set(workingData.subarray(position,position+availableBytes)),workingWord=new DataView(workingBytes.buffer).getUint32(0),workingBitsAvailable=8*availableBytes,workingBytesAvailable-=availableBytes},this.skipBits=function(count){var skipBytes;workingBitsAvailable>count?(workingWord<<=count,workingBitsAvailable-=count):(count-=workingBitsAvailable,count-=8*(skipBytes=Math.floor(count/8)),workingBytesAvailable-=skipBytes,this.loadWord(),workingWord<<=count,workingBitsAvailable-=count)},this.readBits=function(size){var bits=Math.min(workingBitsAvailable,size),valu=workingWord>>>32-bits;return(workingBitsAvailable-=bits)>0?workingWord<<=bits:workingBytesAvailable>0&&this.loadWord(),(bits=size-bits)>0?valu<<bits|this.readBits(bits):valu},this.skipLeadingZeros=function(){var leadingZeroCount;for(leadingZeroCount=0;leadingZeroCount<workingBitsAvailable;++leadingZeroCount)if(0!=(workingWord&2147483648>>>leadingZeroCount))return workingWord<<=leadingZeroCount,workingBitsAvailable-=leadingZeroCount,leadingZeroCount;return this.loadWord(),leadingZeroCount+this.skipLeadingZeros()},this.skipUnsignedExpGolomb=function(){this.skipBits(1+this.skipLeadingZeros())},this.skipExpGolomb=function(){this.skipBits(1+this.skipLeadingZeros())},this.readUnsignedExpGolomb=function(){var clz=this.skipLeadingZeros();return this.readBits(clz+1)-1},this.readExpGolomb=function(){var valu=this.readUnsignedExpGolomb();return 1&valu?1+valu>>>1:-1*(valu>>>1)},this.readBoolean=function(){return 1===this.readBits(1)},this.readUnsignedByte=function(){return this.readBits(8)},this.loadWord()};var _H264Stream,_NalByteStream,PROFILES_WITH_OPTIONAL_SPS_DATA,expGolomb=ExpGolomb;_NalByteStream=function(){var i,buffer,syncPoint=0;_NalByteStream.prototype.init.call(this),this.push=function(data){var swapBuffer;buffer?((swapBuffer=new Uint8Array(buffer.byteLength+data.data.byteLength)).set(buffer),swapBuffer.set(data.data,buffer.byteLength),buffer=swapBuffer):buffer=data.data;for(var len=buffer.byteLength;syncPoint<len-3;syncPoint++)if(1===buffer[syncPoint+2]){i=syncPoint+5;break}for(;i<len;)switch(buffer[i]){case 0:if(0!==buffer[i-1]){i+=2;break}if(0!==buffer[i-2]){i++;break}syncPoint+3!==i-2&&this.trigger("data",buffer.subarray(syncPoint+3,i-2));do{i++}while(1!==buffer[i]&&i<len);syncPoint=i-2,i+=3;break;case 1:if(0!==buffer[i-1]||0!==buffer[i-2]){i+=3;break}this.trigger("data",buffer.subarray(syncPoint+3,i-2)),syncPoint=i-2,i+=3;break;default:i+=3}buffer=buffer.subarray(syncPoint),i-=syncPoint,syncPoint=0},this.reset=function(){buffer=null,syncPoint=0,this.trigger("reset")},this.flush=function(){buffer&&buffer.byteLength>3&&this.trigger("data",buffer.subarray(syncPoint+3)),buffer=null,syncPoint=0,this.trigger("done")},this.endTimeline=function(){this.flush(),this.trigger("endedtimeline")}},_NalByteStream.prototype=new stream,PROFILES_WITH_OPTIONAL_SPS_DATA={100:!0,110:!0,122:!0,244:!0,44:!0,83:!0,86:!0,118:!0,128:!0,138:!0,139:!0,134:!0},_H264Stream=function(){var self,trackId,currentPts,currentDts,discardEmulationPreventionBytes,readSequenceParameterSet,skipScalingList,nalByteStream=new _NalByteStream;_H264Stream.prototype.init.call(this),self=this,this.push=function(packet){"video"===packet.type&&(trackId=packet.trackId,currentPts=packet.pts,currentDts=packet.dts,nalByteStream.push(packet))},nalByteStream.on("data",(function(data){var event={trackId:trackId,pts:currentPts,dts:currentDts,data:data,nalUnitTypeCode:31&data[0]};switch(event.nalUnitTypeCode){case 5:event.nalUnitType="slice_layer_without_partitioning_rbsp_idr";break;case 6:event.nalUnitType="sei_rbsp",event.escapedRBSP=discardEmulationPreventionBytes(data.subarray(1));break;case 7:event.nalUnitType="seq_parameter_set_rbsp",event.escapedRBSP=discardEmulationPreventionBytes(data.subarray(1)),event.config=readSequenceParameterSet(event.escapedRBSP);break;case 8:event.nalUnitType="pic_parameter_set_rbsp";break;case 9:event.nalUnitType="access_unit_delimiter_rbsp"}self.trigger("data",event)})),nalByteStream.on("done",(function(){self.trigger("done")})),nalByteStream.on("partialdone",(function(){self.trigger("partialdone")})),nalByteStream.on("reset",(function(){self.trigger("reset")})),nalByteStream.on("endedtimeline",(function(){self.trigger("endedtimeline")})),this.flush=function(){nalByteStream.flush()},this.partialFlush=function(){nalByteStream.partialFlush()},this.reset=function(){nalByteStream.reset()},this.endTimeline=function(){nalByteStream.endTimeline()},skipScalingList=function(count,expGolombDecoder){var j,lastScale=8,nextScale=8;for(j=0;j<count;j++)0!==nextScale&&(nextScale=(lastScale+expGolombDecoder.readExpGolomb()+256)%256),lastScale=0===nextScale?lastScale:nextScale},discardEmulationPreventionBytes=function(data){for(var newLength,newData,length=data.byteLength,emulationPreventionBytesPositions=[],i=1;i<length-2;)0===data[i]&&0===data[i+1]&&3===data[i+2]?(emulationPreventionBytesPositions.push(i+2),i+=2):i++;if(0===emulationPreventionBytesPositions.length)return data;newLength=length-emulationPreventionBytesPositions.length,newData=new Uint8Array(newLength);var sourceIndex=0;for(i=0;i<newLength;sourceIndex++,i++)sourceIndex===emulationPreventionBytesPositions[0]&&(sourceIndex++,emulationPreventionBytesPositions.shift()),newData[i]=data[sourceIndex];return newData},readSequenceParameterSet=function(data){var expGolombDecoder,profileIdc,levelIdc,profileCompatibility,chromaFormatIdc,picOrderCntType,numRefFramesInPicOrderCntCycle,picWidthInMbsMinus1,picHeightInMapUnitsMinus1,frameMbsOnlyFlag,scalingListCount,i,frameCropLeftOffset=0,frameCropRightOffset=0,frameCropTopOffset=0,frameCropBottomOffset=0,sarRatio=[1,1];if(profileIdc=(expGolombDecoder=new expGolomb(data)).readUnsignedByte(),profileCompatibility=expGolombDecoder.readUnsignedByte(),levelIdc=expGolombDecoder.readUnsignedByte(),expGolombDecoder.skipUnsignedExpGolomb(),PROFILES_WITH_OPTIONAL_SPS_DATA[profileIdc]&&(3===(chromaFormatIdc=expGolombDecoder.readUnsignedExpGolomb())&&expGolombDecoder.skipBits(1),expGolombDecoder.skipUnsignedExpGolomb(),expGolombDecoder.skipUnsignedExpGolomb(),expGolombDecoder.skipBits(1),expGolombDecoder.readBoolean()))for(scalingListCount=3!==chromaFormatIdc?8:12,i=0;i<scalingListCount;i++)expGolombDecoder.readBoolean()&&skipScalingList(i<6?16:64,expGolombDecoder);if(expGolombDecoder.skipUnsignedExpGolomb(),0===(picOrderCntType=expGolombDecoder.readUnsignedExpGolomb()))expGolombDecoder.readUnsignedExpGolomb();else if(1===picOrderCntType)for(expGolombDecoder.skipBits(1),expGolombDecoder.skipExpGolomb(),expGolombDecoder.skipExpGolomb(),numRefFramesInPicOrderCntCycle=expGolombDecoder.readUnsignedExpGolomb(),i=0;i<numRefFramesInPicOrderCntCycle;i++)expGolombDecoder.skipExpGolomb();if(expGolombDecoder.skipUnsignedExpGolomb(),expGolombDecoder.skipBits(1),picWidthInMbsMinus1=expGolombDecoder.readUnsignedExpGolomb(),picHeightInMapUnitsMinus1=expGolombDecoder.readUnsignedExpGolomb(),0===(frameMbsOnlyFlag=expGolombDecoder.readBits(1))&&expGolombDecoder.skipBits(1),expGolombDecoder.skipBits(1),expGolombDecoder.readBoolean()&&(frameCropLeftOffset=expGolombDecoder.readUnsignedExpGolomb(),frameCropRightOffset=expGolombDecoder.readUnsignedExpGolomb(),frameCropTopOffset=expGolombDecoder.readUnsignedExpGolomb(),frameCropBottomOffset=expGolombDecoder.readUnsignedExpGolomb()),expGolombDecoder.readBoolean()&&expGolombDecoder.readBoolean()){switch(expGolombDecoder.readUnsignedByte()){case 1:sarRatio=[1,1];break;case 2:sarRatio=[12,11];break;case 3:sarRatio=[10,11];break;case 4:sarRatio=[16,11];break;case 5:sarRatio=[40,33];break;case 6:sarRatio=[24,11];break;case 7:sarRatio=[20,11];break;case 8:sarRatio=[32,11];break;case 9:sarRatio=[80,33];break;case 10:sarRatio=[18,11];break;case 11:sarRatio=[15,11];break;case 12:sarRatio=[64,33];break;case 13:sarRatio=[160,99];break;case 14:sarRatio=[4,3];break;case 15:sarRatio=[3,2];break;case 16:sarRatio=[2,1];break;case 255:sarRatio=[expGolombDecoder.readUnsignedByte()<<8|expGolombDecoder.readUnsignedByte(),expGolombDecoder.readUnsignedByte()<<8|expGolombDecoder.readUnsignedByte()]}sarRatio&&(sarRatio[0],sarRatio[1])}return{profileIdc:profileIdc,levelIdc:levelIdc,profileCompatibility:profileCompatibility,width:16*(picWidthInMbsMinus1+1)-2*frameCropLeftOffset-2*frameCropRightOffset,height:(2-frameMbsOnlyFlag)*(picHeightInMapUnitsMinus1+1)*16-2*frameCropTopOffset-2*frameCropBottomOffset,sarRatio:sarRatio}}},_H264Stream.prototype=new stream;var _AacStream,h264={H264Stream:_H264Stream,NalByteStream:_NalByteStream},ADTS_SAMPLING_FREQUENCIES=[96e3,88200,64e3,48e3,44100,32e3,24e3,22050,16e3,12e3,11025,8e3,7350],parseId3TagSize=function(header,byteIndex){var returnSize=header[byteIndex+6]<<21|header[byteIndex+7]<<14|header[byteIndex+8]<<7|header[byteIndex+9];return returnSize=returnSize>=0?returnSize:0,(16&header[byteIndex+5])>>4?returnSize+20:returnSize+10},getId3Offset=function getId3Offset(data,offset){return data.length-offset<10||data[offset]!=="I".charCodeAt(0)||data[offset+1]!=="D".charCodeAt(0)||data[offset+2]!=="3".charCodeAt(0)?offset:getId3Offset(data,offset+=parseId3TagSize(data,offset))},parseSyncSafeInteger=function(data){return data[0]<<21|data[1]<<14|data[2]<<7|data[3]},utils={isLikelyAacData:function(data){var offset=getId3Offset(data,0);return data.length>=offset+2&&255==(255&data[offset])&&240==(240&data[offset+1])&&16==(22&data[offset+1])},parseId3TagSize:parseId3TagSize,parseAdtsSize:function(header,byteIndex){var lowThree=(224&header[byteIndex+5])>>5,middle=header[byteIndex+4]<<3;return 6144&header[byteIndex+3]|middle|lowThree},parseType:function(header,byteIndex){return header[byteIndex]==="I".charCodeAt(0)&&header[byteIndex+1]==="D".charCodeAt(0)&&header[byteIndex+2]==="3".charCodeAt(0)?"timed-metadata":!0&header[byteIndex]&&240==(240&header[byteIndex+1])?"audio":null},parseSampleRate:function(packet){for(var i=0;i+5<packet.length;){if(255===packet[i]&&240==(246&packet[i+1]))return ADTS_SAMPLING_FREQUENCIES[(60&packet[i+2])>>>2];i++}return null},parseAacTimestamp:function(packet){var frameStart,frameSize,frame;frameStart=10,64&packet[5]&&(frameStart+=4,frameStart+=parseSyncSafeInteger(packet.subarray(10,14)));do{if((frameSize=parseSyncSafeInteger(packet.subarray(frameStart+4,frameStart+8)))<1)return null;if("PRIV"===String.fromCharCode(packet[frameStart],packet[frameStart+1],packet[frameStart+2],packet[frameStart+3])){frame=packet.subarray(frameStart+10,frameStart+frameSize+10);for(var i=0;i<frame.byteLength;i++)if(0===frame[i]){var owner=unescape(function(bytes,start,end){var i,result="";for(i=start;i<end;i++)result+="%"+("00"+bytes[i].toString(16)).slice(-2);return result}(frame,0,i));if("com.apple.streaming.transportStreamTimestamp"===owner){var d=frame.subarray(i+1),size=(1&d[3])<<30|d[4]<<22|d[5]<<14|d[6]<<6|d[7]>>>2;return size*=4,size+=3&d[7]}break}}frameStart+=10,frameStart+=frameSize}while(frameStart<packet.byteLength);return null}};(_AacStream=function(){var everything=new Uint8Array,timeStamp=0;_AacStream.prototype.init.call(this),this.setTimestamp=function(timestamp){timeStamp=timestamp},this.push=function(bytes){var bytesLeft,chunk,packet,tempLength,frameSize=0,byteIndex=0;for(everything.length?(tempLength=everything.length,(everything=new Uint8Array(bytes.byteLength+tempLength)).set(everything.subarray(0,tempLength)),everything.set(bytes,tempLength)):everything=bytes;everything.length-byteIndex>=3;)if(everything[byteIndex]!=="I".charCodeAt(0)||everything[byteIndex+1]!=="D".charCodeAt(0)||everything[byteIndex+2]!=="3".charCodeAt(0))if(255!=(255&everything[byteIndex])||240!=(240&everything[byteIndex+1]))byteIndex++;else{if(everything.length-byteIndex<7)break;if(byteIndex+(frameSize=utils.parseAdtsSize(everything,byteIndex))>everything.length)break;packet={type:"audio",data:everything.subarray(byteIndex,byteIndex+frameSize),pts:timeStamp,dts:timeStamp},this.trigger("data",packet),byteIndex+=frameSize}else{if(everything.length-byteIndex<10)break;if(byteIndex+(frameSize=utils.parseId3TagSize(everything,byteIndex))>everything.length)break;chunk={type:"timed-metadata",data:everything.subarray(byteIndex,byteIndex+frameSize)},this.trigger("data",chunk),byteIndex+=frameSize}bytesLeft=everything.length-byteIndex,everything=bytesLeft>0?everything.subarray(byteIndex):new Uint8Array},this.reset=function(){everything=new Uint8Array,this.trigger("reset")},this.endTimeline=function(){everything=new Uint8Array,this.trigger("endedtimeline")}}).prototype=new stream;var _VideoSegmentStream,_AudioSegmentStream,_Transmuxer,_CoalesceStream,aac=_AacStream,audioProperties=["audioobjecttype","channelcount","samplerate","samplingfrequencyindex","samplesize"],videoProperties=["width","height","profileIdc","levelIdc","profileCompatibility","sarRatio"],H264Stream=h264.H264Stream,isLikelyAacData=utils.isLikelyAacData,ONE_SECOND_IN_TS$1=clock_ONE_SECOND_IN_TS$0,retriggerForStream=function(key,event){event.stream=key,this.trigger("log",event)},addPipelineLogRetriggers=function(transmuxer,pipeline){for(var keys=Object.keys(pipeline),i=0;i<keys.length;i++){var key=keys[i];"headOfPipeline"!==key&&pipeline[key].on&&pipeline[key].on("log",retriggerForStream.bind(transmuxer,key))}},arrayEquals=function(a,b){var i;if(a.length!==b.length)return!1;for(i=0;i<a.length;i++)if(a[i]!==b[i])return!1;return!0},generateSegmentTimingInfo=function(baseMediaDecodeTime,startDts,startPts,endDts,endPts,prependedContentDuration){return{start:{dts:baseMediaDecodeTime,pts:baseMediaDecodeTime+(startPts-startDts)},end:{dts:baseMediaDecodeTime+(endDts-startDts),pts:baseMediaDecodeTime+(endPts-startPts)},prependedContentDuration:prependedContentDuration,baseMediaDecodeTime:baseMediaDecodeTime}};_AudioSegmentStream=function(track,options){var sequenceNumber,adtsFrames=[],earliestAllowedDts=0,audioAppendStartTs=0,videoBaseMediaDecodeTime=1/0;sequenceNumber=(options=options||{}).firstSequenceNumber||0,_AudioSegmentStream.prototype.init.call(this),this.push=function(data){trackDecodeInfo_collectDtsInfo(track,data),track&&audioProperties.forEach((function(prop){track[prop]=data[prop]})),adtsFrames.push(data)},this.setEarliestDts=function(earliestDts){earliestAllowedDts=earliestDts},this.setVideoBaseMediaDecodeTime=function(baseMediaDecodeTime){videoBaseMediaDecodeTime=baseMediaDecodeTime},this.setAudioAppendStart=function(timestamp){audioAppendStartTs=timestamp},this.flush=function(){var frames,moof,mdat,boxes,frameDuration,segmentDuration,videoClockCyclesOfSilencePrefixed;0!==adtsFrames.length?(frames=audioFrameUtils_trimAdtsFramesByEarliestDts(adtsFrames,track,earliestAllowedDts),track.baseMediaDecodeTime=trackDecodeInfo_calculateTrackBaseMediaDecodeTime(track,options.keepOriginalTimestamps),videoClockCyclesOfSilencePrefixed=audioFrameUtils_prefixWithSilence(track,frames,audioAppendStartTs,videoBaseMediaDecodeTime),track.samples=audioFrameUtils_generateSampleTable(frames),mdat=mp4Generator_mdat(audioFrameUtils_concatenateFrameData(frames)),adtsFrames=[],moof=mp4Generator_moof(sequenceNumber,[track]),boxes=new Uint8Array(moof.byteLength+mdat.byteLength),sequenceNumber++,boxes.set(moof),boxes.set(mdat,moof.byteLength),trackDecodeInfo_clearDtsInfo(track),frameDuration=Math.ceil(1024*ONE_SECOND_IN_TS$1/track.samplerate),frames.length&&(segmentDuration=frames.length*frameDuration,this.trigger("segmentTimingInfo",generateSegmentTimingInfo(clock_audioTsToVideoTs$0(track.baseMediaDecodeTime,track.samplerate),frames[0].dts,frames[0].pts,frames[0].dts+segmentDuration,frames[0].pts+segmentDuration,videoClockCyclesOfSilencePrefixed||0)),this.trigger("timingInfo",{start:frames[0].pts,end:frames[0].pts+segmentDuration})),this.trigger("data",{track:track,boxes:boxes}),this.trigger("done","AudioSegmentStream")):this.trigger("done","AudioSegmentStream")},this.reset=function(){trackDecodeInfo_clearDtsInfo(track),adtsFrames=[],this.trigger("reset")}},_AudioSegmentStream.prototype=new stream,_VideoSegmentStream=function(track,options){var sequenceNumber,config,pps,nalUnits=[],gopsToAlignWith=[];sequenceNumber=(options=options||{}).firstSequenceNumber||0,_VideoSegmentStream.prototype.init.call(this),delete track.minPTS,this.gopCache_=[],this.push=function(nalUnit){trackDecodeInfo_collectDtsInfo(track,nalUnit),"seq_parameter_set_rbsp"!==nalUnit.nalUnitType||config||(config=nalUnit.config,track.sps=[nalUnit.data],videoProperties.forEach((function(prop){track[prop]=config[prop]}),this)),"pic_parameter_set_rbsp"!==nalUnit.nalUnitType||pps||(pps=nalUnit.data,track.pps=[nalUnit.data]),nalUnits.push(nalUnit)},this.flush=function(){for(var frames,gopForFusion,gops,moof,mdat,boxes,firstGop,lastGop,prependedContentDuration=0;nalUnits.length&&"access_unit_delimiter_rbsp"!==nalUnits[0].nalUnitType;)nalUnits.shift();if(0===nalUnits.length)return this.resetStream_(),void this.trigger("done","VideoSegmentStream");if(frames=frameUtils_groupNalsIntoFrames(nalUnits),(gops=frameUtils_groupFramesIntoGops(frames))[0][0].keyFrame||((gopForFusion=this.getGopForFusion_(nalUnits[0],track))?(prependedContentDuration=gopForFusion.duration,gops.unshift(gopForFusion),gops.byteLength+=gopForFusion.byteLength,gops.nalCount+=gopForFusion.nalCount,gops.pts=gopForFusion.pts,gops.dts=gopForFusion.dts,gops.duration+=gopForFusion.duration):gops=frameUtils_extendFirstKeyFrame(gops)),gopsToAlignWith.length){var alignedGops;if(!(alignedGops=options.alignGopsAtEnd?this.alignGopsAtEnd_(gops):this.alignGopsAtStart_(gops)))return this.gopCache_.unshift({gop:gops.pop(),pps:track.pps,sps:track.sps}),this.gopCache_.length=Math.min(6,this.gopCache_.length),nalUnits=[],this.resetStream_(),void this.trigger("done","VideoSegmentStream");trackDecodeInfo_clearDtsInfo(track),gops=alignedGops}trackDecodeInfo_collectDtsInfo(track,gops),track.samples=frameUtils_generateSampleTable(gops),mdat=mp4Generator_mdat(frameUtils_concatenateNalData(gops)),track.baseMediaDecodeTime=trackDecodeInfo_calculateTrackBaseMediaDecodeTime(track,options.keepOriginalTimestamps),this.trigger("processedGopsInfo",gops.map((function(gop){return{pts:gop.pts,dts:gop.dts,byteLength:gop.byteLength}}))),firstGop=gops[0],lastGop=gops[gops.length-1],this.trigger("segmentTimingInfo",generateSegmentTimingInfo(track.baseMediaDecodeTime,firstGop.dts,firstGop.pts,lastGop.dts+lastGop.duration,lastGop.pts+lastGop.duration,prependedContentDuration)),this.trigger("timingInfo",{start:gops[0].pts,end:gops[gops.length-1].pts+gops[gops.length-1].duration}),this.gopCache_.unshift({gop:gops.pop(),pps:track.pps,sps:track.sps}),this.gopCache_.length=Math.min(6,this.gopCache_.length),nalUnits=[],this.trigger("baseMediaDecodeTime",track.baseMediaDecodeTime),this.trigger("timelineStartInfo",track.timelineStartInfo),moof=mp4Generator_moof(sequenceNumber,[track]),boxes=new Uint8Array(moof.byteLength+mdat.byteLength),sequenceNumber++,boxes.set(moof),boxes.set(mdat,moof.byteLength),this.trigger("data",{track:track,boxes:boxes}),this.resetStream_(),this.trigger("done","VideoSegmentStream")},this.reset=function(){this.resetStream_(),nalUnits=[],this.gopCache_.length=0,gopsToAlignWith.length=0,this.trigger("reset")},this.resetStream_=function(){trackDecodeInfo_clearDtsInfo(track),config=void 0,pps=void 0},this.getGopForFusion_=function(nalUnit){var dtsDistance,nearestGopObj,currentGop,currentGopObj,i,nearestDistance=1/0;for(i=0;i<this.gopCache_.length;i++)currentGop=(currentGopObj=this.gopCache_[i]).gop,track.pps&&arrayEquals(track.pps[0],currentGopObj.pps[0])&&track.sps&&arrayEquals(track.sps[0],currentGopObj.sps[0])&&(currentGop.dts<track.timelineStartInfo.dts||(dtsDistance=nalUnit.dts-currentGop.dts-currentGop.duration)>=-1e4&&dtsDistance<=45e3&&(!nearestGopObj||nearestDistance>dtsDistance)&&(nearestGopObj=currentGopObj,nearestDistance=dtsDistance));return nearestGopObj?nearestGopObj.gop:null},this.alignGopsAtStart_=function(gops){var alignIndex,gopIndex,align,gop,byteLength,nalCount,duration,alignedGops;for(byteLength=gops.byteLength,nalCount=gops.nalCount,duration=gops.duration,alignIndex=gopIndex=0;alignIndex<gopsToAlignWith.length&&gopIndex<gops.length&&(align=gopsToAlignWith[alignIndex],gop=gops[gopIndex],align.pts!==gop.pts);)gop.pts>align.pts?alignIndex++:(gopIndex++,byteLength-=gop.byteLength,nalCount-=gop.nalCount,duration-=gop.duration);return 0===gopIndex?gops:gopIndex===gops.length?null:((alignedGops=gops.slice(gopIndex)).byteLength=byteLength,alignedGops.duration=duration,alignedGops.nalCount=nalCount,alignedGops.pts=alignedGops[0].pts,alignedGops.dts=alignedGops[0].dts,alignedGops)},this.alignGopsAtEnd_=function(gops){var alignIndex,gopIndex,align,gop,alignEndIndex,matchFound,trimIndex;for(alignIndex=gopsToAlignWith.length-1,gopIndex=gops.length-1,alignEndIndex=null,matchFound=!1;alignIndex>=0&&gopIndex>=0;){if(align=gopsToAlignWith[alignIndex],gop=gops[gopIndex],align.pts===gop.pts){matchFound=!0;break}align.pts>gop.pts?alignIndex--:(alignIndex===gopsToAlignWith.length-1&&(alignEndIndex=gopIndex),gopIndex--)}if(!matchFound&&null===alignEndIndex)return null;if(0===(trimIndex=matchFound?gopIndex:alignEndIndex))return gops;var alignedGops=gops.slice(trimIndex),metadata=alignedGops.reduce((function(total,gop){return total.byteLength+=gop.byteLength,total.duration+=gop.duration,total.nalCount+=gop.nalCount,total}),{byteLength:0,duration:0,nalCount:0});return alignedGops.byteLength=metadata.byteLength,alignedGops.duration=metadata.duration,alignedGops.nalCount=metadata.nalCount,alignedGops.pts=alignedGops[0].pts,alignedGops.dts=alignedGops[0].dts,alignedGops},this.alignGopsWith=function(newGopsToAlignWith){gopsToAlignWith=newGopsToAlignWith}},_VideoSegmentStream.prototype=new stream,_CoalesceStream=function(options,metadataStream){this.numberOfTracks=0,this.metadataStream=metadataStream,void 0!==(options=options||{}).remux?this.remuxTracks=!!options.remux:this.remuxTracks=!0,"boolean"==typeof options.keepOriginalTimestamps?this.keepOriginalTimestamps=options.keepOriginalTimestamps:this.keepOriginalTimestamps=!1,this.pendingTracks=[],this.videoTrack=null,this.pendingBoxes=[],this.pendingCaptions=[],this.pendingMetadata=[],this.pendingBytes=0,this.emittedTracks=0,_CoalesceStream.prototype.init.call(this),this.push=function(output){return output.text?this.pendingCaptions.push(output):output.frames?this.pendingMetadata.push(output):(this.pendingTracks.push(output.track),this.pendingBytes+=output.boxes.byteLength,"video"===output.track.type&&(this.videoTrack=output.track,this.pendingBoxes.push(output.boxes)),void("audio"===output.track.type&&(this.audioTrack=output.track,this.pendingBoxes.unshift(output.boxes))))}},_CoalesceStream.prototype=new stream,_CoalesceStream.prototype.flush=function(flushSource){var caption,id3,initSegment,i,offset=0,event={captions:[],captionStreams:{},metadata:[],info:{}},timelineStartPts=0;if(this.pendingTracks.length<this.numberOfTracks){if("VideoSegmentStream"!==flushSource&&"AudioSegmentStream"!==flushSource)return;if(this.remuxTracks)return;if(0===this.pendingTracks.length)return this.emittedTracks++,void(this.emittedTracks>=this.numberOfTracks&&(this.trigger("done"),this.emittedTracks=0))}if(this.videoTrack?(timelineStartPts=this.videoTrack.timelineStartInfo.pts,videoProperties.forEach((function(prop){event.info[prop]=this.videoTrack[prop]}),this)):this.audioTrack&&(timelineStartPts=this.audioTrack.timelineStartInfo.pts,audioProperties.forEach((function(prop){event.info[prop]=this.audioTrack[prop]}),this)),this.videoTrack||this.audioTrack){for(1===this.pendingTracks.length?event.type=this.pendingTracks[0].type:event.type="combined",this.emittedTracks+=this.pendingTracks.length,initSegment=mp4Generator_initSegment(this.pendingTracks),event.initSegment=new Uint8Array(initSegment.byteLength),event.initSegment.set(initSegment),event.data=new Uint8Array(this.pendingBytes),i=0;i<this.pendingBoxes.length;i++)event.data.set(this.pendingBoxes[i],offset),offset+=this.pendingBoxes[i].byteLength;for(i=0;i<this.pendingCaptions.length;i++)(caption=this.pendingCaptions[i]).startTime=clock_metadataTsToSeconds$0(caption.startPts,timelineStartPts,this.keepOriginalTimestamps),caption.endTime=clock_metadataTsToSeconds$0(caption.endPts,timelineStartPts,this.keepOriginalTimestamps),event.captionStreams[caption.stream]=!0,event.captions.push(caption);for(i=0;i<this.pendingMetadata.length;i++)(id3=this.pendingMetadata[i]).cueTime=clock_metadataTsToSeconds$0(id3.pts,timelineStartPts,this.keepOriginalTimestamps),event.metadata.push(id3);for(event.metadata.dispatchType=this.metadataStream.dispatchType,this.pendingTracks.length=0,this.videoTrack=null,this.pendingBoxes.length=0,this.pendingCaptions.length=0,this.pendingBytes=0,this.pendingMetadata.length=0,this.trigger("data",event),i=0;i<event.captions.length;i++)caption=event.captions[i],this.trigger("caption",caption);for(i=0;i<event.metadata.length;i++)id3=event.metadata[i],this.trigger("id3Frame",id3)}this.emittedTracks>=this.numberOfTracks&&(this.trigger("done"),this.emittedTracks=0)},_CoalesceStream.prototype.setRemux=function(val){this.remuxTracks=val},_Transmuxer=function(options){var videoTrack,audioTrack,self=this,hasFlushed=!0;_Transmuxer.prototype.init.call(this),options=options||{},this.baseMediaDecodeTime=options.baseMediaDecodeTime||0,this.transmuxPipeline_={},this.setupAacPipeline=function(){var pipeline={};this.transmuxPipeline_=pipeline,pipeline.type="aac",pipeline.metadataStream=new m2ts_1.MetadataStream,pipeline.aacStream=new aac,pipeline.audioTimestampRolloverStream=new m2ts_1.TimestampRolloverStream("audio"),pipeline.timedMetadataTimestampRolloverStream=new m2ts_1.TimestampRolloverStream("timed-metadata"),pipeline.adtsStream=new adts,pipeline.coalesceStream=new _CoalesceStream(options,pipeline.metadataStream),pipeline.headOfPipeline=pipeline.aacStream,pipeline.aacStream.pipe(pipeline.audioTimestampRolloverStream).pipe(pipeline.adtsStream),pipeline.aacStream.pipe(pipeline.timedMetadataTimestampRolloverStream).pipe(pipeline.metadataStream).pipe(pipeline.coalesceStream),pipeline.metadataStream.on("timestamp",(function(frame){pipeline.aacStream.setTimestamp(frame.timeStamp)})),pipeline.aacStream.on("data",(function(data){"timed-metadata"!==data.type&&"audio"!==data.type||pipeline.audioSegmentStream||(audioTrack=audioTrack||{timelineStartInfo:{baseMediaDecodeTime:self.baseMediaDecodeTime},codec:"adts",type:"audio"},pipeline.coalesceStream.numberOfTracks++,pipeline.audioSegmentStream=new _AudioSegmentStream(audioTrack,options),pipeline.audioSegmentStream.on("log",self.getLogTrigger_("audioSegmentStream")),pipeline.audioSegmentStream.on("timingInfo",self.trigger.bind(self,"audioTimingInfo")),pipeline.adtsStream.pipe(pipeline.audioSegmentStream).pipe(pipeline.coalesceStream),self.trigger("trackinfo",{hasAudio:!!audioTrack,hasVideo:!!videoTrack}))})),pipeline.coalesceStream.on("data",this.trigger.bind(this,"data")),pipeline.coalesceStream.on("done",this.trigger.bind(this,"done")),addPipelineLogRetriggers(this,pipeline)},this.setupTsPipeline=function(){var pipeline={};this.transmuxPipeline_=pipeline,pipeline.type="ts",pipeline.metadataStream=new m2ts_1.MetadataStream,pipeline.packetStream=new m2ts_1.TransportPacketStream,pipeline.parseStream=new m2ts_1.TransportParseStream,pipeline.elementaryStream=new m2ts_1.ElementaryStream,pipeline.timestampRolloverStream=new m2ts_1.TimestampRolloverStream,pipeline.adtsStream=new adts,pipeline.h264Stream=new H264Stream,pipeline.captionStream=new m2ts_1.CaptionStream(options),pipeline.coalesceStream=new _CoalesceStream(options,pipeline.metadataStream),pipeline.headOfPipeline=pipeline.packetStream,pipeline.packetStream.pipe(pipeline.parseStream).pipe(pipeline.elementaryStream).pipe(pipeline.timestampRolloverStream),pipeline.timestampRolloverStream.pipe(pipeline.h264Stream),pipeline.timestampRolloverStream.pipe(pipeline.adtsStream),pipeline.timestampRolloverStream.pipe(pipeline.metadataStream).pipe(pipeline.coalesceStream),pipeline.h264Stream.pipe(pipeline.captionStream).pipe(pipeline.coalesceStream),pipeline.elementaryStream.on("data",(function(data){var i;if("metadata"===data.type){for(i=data.tracks.length;i--;)videoTrack||"video"!==data.tracks[i].type?audioTrack||"audio"!==data.tracks[i].type||((audioTrack=data.tracks[i]).timelineStartInfo.baseMediaDecodeTime=self.baseMediaDecodeTime):(videoTrack=data.tracks[i]).timelineStartInfo.baseMediaDecodeTime=self.baseMediaDecodeTime;videoTrack&&!pipeline.videoSegmentStream&&(pipeline.coalesceStream.numberOfTracks++,pipeline.videoSegmentStream=new _VideoSegmentStream(videoTrack,options),pipeline.videoSegmentStream.on("log",self.getLogTrigger_("videoSegmentStream")),pipeline.videoSegmentStream.on("timelineStartInfo",(function(timelineStartInfo){audioTrack&&!options.keepOriginalTimestamps&&(audioTrack.timelineStartInfo=timelineStartInfo,pipeline.audioSegmentStream.setEarliestDts(timelineStartInfo.dts-self.baseMediaDecodeTime))})),pipeline.videoSegmentStream.on("processedGopsInfo",self.trigger.bind(self,"gopInfo")),pipeline.videoSegmentStream.on("segmentTimingInfo",self.trigger.bind(self,"videoSegmentTimingInfo")),pipeline.videoSegmentStream.on("baseMediaDecodeTime",(function(baseMediaDecodeTime){audioTrack&&pipeline.audioSegmentStream.setVideoBaseMediaDecodeTime(baseMediaDecodeTime)})),pipeline.videoSegmentStream.on("timingInfo",self.trigger.bind(self,"videoTimingInfo")),pipeline.h264Stream.pipe(pipeline.videoSegmentStream).pipe(pipeline.coalesceStream)),audioTrack&&!pipeline.audioSegmentStream&&(pipeline.coalesceStream.numberOfTracks++,pipeline.audioSegmentStream=new _AudioSegmentStream(audioTrack,options),pipeline.audioSegmentStream.on("log",self.getLogTrigger_("audioSegmentStream")),pipeline.audioSegmentStream.on("timingInfo",self.trigger.bind(self,"audioTimingInfo")),pipeline.audioSegmentStream.on("segmentTimingInfo",self.trigger.bind(self,"audioSegmentTimingInfo")),pipeline.adtsStream.pipe(pipeline.audioSegmentStream).pipe(pipeline.coalesceStream)),self.trigger("trackinfo",{hasAudio:!!audioTrack,hasVideo:!!videoTrack})}})),pipeline.coalesceStream.on("data",this.trigger.bind(this,"data")),pipeline.coalesceStream.on("id3Frame",(function(id3Frame){id3Frame.dispatchType=pipeline.metadataStream.dispatchType,self.trigger("id3Frame",id3Frame)})),pipeline.coalesceStream.on("caption",this.trigger.bind(this,"caption")),pipeline.coalesceStream.on("done",this.trigger.bind(this,"done")),addPipelineLogRetriggers(this,pipeline)},this.setBaseMediaDecodeTime=function(baseMediaDecodeTime){var pipeline=this.transmuxPipeline_;options.keepOriginalTimestamps||(this.baseMediaDecodeTime=baseMediaDecodeTime),audioTrack&&(audioTrack.timelineStartInfo.dts=void 0,audioTrack.timelineStartInfo.pts=void 0,trackDecodeInfo_clearDtsInfo(audioTrack),pipeline.audioTimestampRolloverStream&&pipeline.audioTimestampRolloverStream.discontinuity()),videoTrack&&(pipeline.videoSegmentStream&&(pipeline.videoSegmentStream.gopCache_=[]),videoTrack.timelineStartInfo.dts=void 0,videoTrack.timelineStartInfo.pts=void 0,trackDecodeInfo_clearDtsInfo(videoTrack),pipeline.captionStream.reset()),pipeline.timestampRolloverStream&&pipeline.timestampRolloverStream.discontinuity()},this.setAudioAppendStart=function(timestamp){audioTrack&&this.transmuxPipeline_.audioSegmentStream.setAudioAppendStart(timestamp)},this.setRemux=function(val){var pipeline=this.transmuxPipeline_;options.remux=val,pipeline&&pipeline.coalesceStream&&pipeline.coalesceStream.setRemux(val)},this.alignGopsWith=function(gopsToAlignWith){videoTrack&&this.transmuxPipeline_.videoSegmentStream&&this.transmuxPipeline_.videoSegmentStream.alignGopsWith(gopsToAlignWith)},this.getLogTrigger_=function(key){var self=this;return function(event){event.stream=key,self.trigger("log",event)}},this.push=function(data){if(hasFlushed){var isAac=isLikelyAacData(data);isAac&&"aac"!==this.transmuxPipeline_.type?this.setupAacPipeline():isAac||"ts"===this.transmuxPipeline_.type||this.setupTsPipeline(),hasFlushed=!1}this.transmuxPipeline_.headOfPipeline.push(data)},this.flush=function(){hasFlushed=!0,this.transmuxPipeline_.headOfPipeline.flush()},this.endTimeline=function(){this.transmuxPipeline_.headOfPipeline.endTimeline()},this.reset=function(){this.transmuxPipeline_.headOfPipeline&&this.transmuxPipeline_.headOfPipeline.reset()},this.resetCaptions=function(){this.transmuxPipeline_.captionStream&&this.transmuxPipeline_.captionStream.reset()}},_Transmuxer.prototype=new stream;var startTime,getTracks,getTimescaleFromMediaHeader,transmuxer={Transmuxer:_Transmuxer,VideoSegmentStream:_VideoSegmentStream,AudioSegmentStream:_AudioSegmentStream,AUDIO_PROPERTIES:audioProperties,VIDEO_PROPERTIES:videoProperties,generateSegmentTimingInfo:generateSegmentTimingInfo},bin_toUnsigned=function(value){return value>>>0},parseType_1=function(buffer){var result="";return result+=String.fromCharCode(buffer[0]),result+=String.fromCharCode(buffer[1]),result+=String.fromCharCode(buffer[2]),result+=String.fromCharCode(buffer[3])},toUnsigned$2=bin_toUnsigned,findBox_1=function findBox(data,path){var i,size,type,end,subresults,results=[];if(!path.length)return null;for(i=0;i<data.byteLength;)size=toUnsigned$2(data[i]<<24|data[i+1]<<16|data[i+2]<<8|data[i+3]),type=parseType_1(data.subarray(i+4,i+8)),end=size>1?i+size:data.byteLength,type===path[0]&&(1===path.length?results.push(data.subarray(i+8,end)):(subresults=findBox(data.subarray(i+8,end),path.slice(1))).length&&(results=results.concat(subresults))),i=end;return results},toUnsigned$1=bin_toUnsigned,getUint64$1=numbers.getUint64,parseTfdt=function(data){var result={version:data[0],flags:new Uint8Array(data.subarray(1,4))};return 1===result.version?result.baseMediaDecodeTime=getUint64$1(data.subarray(4)):result.baseMediaDecodeTime=toUnsigned$1(data[4]<<24|data[5]<<16|data[6]<<8|data[7]),result},parseSampleFlags_1=function(flags){return{isLeading:(12&flags[0])>>>2,dependsOn:3&flags[0],isDependedOn:(192&flags[1])>>>6,hasRedundancy:(48&flags[1])>>>4,paddingValue:(14&flags[1])>>>1,isNonSyncSample:1&flags[1],degradationPriority:flags[2]<<8|flags[3]}},parseTrun=function(data){var sample,result={version:data[0],flags:new Uint8Array(data.subarray(1,4)),samples:[]},view=new DataView(data.buffer,data.byteOffset,data.byteLength),dataOffsetPresent=1&result.flags[2],firstSampleFlagsPresent=4&result.flags[2],sampleDurationPresent=1&result.flags[1],sampleSizePresent=2&result.flags[1],sampleFlagsPresent=4&result.flags[1],sampleCompositionTimeOffsetPresent=8&result.flags[1],sampleCount=view.getUint32(4),offset=8;for(dataOffsetPresent&&(result.dataOffset=view.getInt32(offset),offset+=4),firstSampleFlagsPresent&&sampleCount&&(sample={flags:parseSampleFlags_1(data.subarray(offset,offset+4))},offset+=4,sampleDurationPresent&&(sample.duration=view.getUint32(offset),offset+=4),sampleSizePresent&&(sample.size=view.getUint32(offset),offset+=4),sampleCompositionTimeOffsetPresent&&(1===result.version?sample.compositionTimeOffset=view.getInt32(offset):sample.compositionTimeOffset=view.getUint32(offset),offset+=4),result.samples.push(sample),sampleCount--);sampleCount--;)sample={},sampleDurationPresent&&(sample.duration=view.getUint32(offset),offset+=4),sampleSizePresent&&(sample.size=view.getUint32(offset),offset+=4),sampleFlagsPresent&&(sample.flags=parseSampleFlags_1(data.subarray(offset,offset+4)),offset+=4),sampleCompositionTimeOffsetPresent&&(1===result.version?sample.compositionTimeOffset=view.getInt32(offset):sample.compositionTimeOffset=view.getUint32(offset),offset+=4),result.samples.push(sample);return result},parseTfhd=function(data){var i,view=new DataView(data.buffer,data.byteOffset,data.byteLength),result={version:data[0],flags:new Uint8Array(data.subarray(1,4)),trackId:view.getUint32(4)},baseDataOffsetPresent=1&result.flags[2],sampleDescriptionIndexPresent=2&result.flags[2],defaultSampleDurationPresent=8&result.flags[2],defaultSampleSizePresent=16&result.flags[2],defaultSampleFlagsPresent=32&result.flags[2],durationIsEmpty=65536&result.flags[0],defaultBaseIsMoof=131072&result.flags[0];return i=8,baseDataOffsetPresent&&(i+=4,result.baseDataOffset=view.getUint32(12),i+=4),sampleDescriptionIndexPresent&&(result.sampleDescriptionIndex=view.getUint32(i),i+=4),defaultSampleDurationPresent&&(result.defaultSampleDuration=view.getUint32(i),i+=4),defaultSampleSizePresent&&(result.defaultSampleSize=view.getUint32(i),i+=4),defaultSampleFlagsPresent&&(result.defaultSampleFlags=view.getUint32(i)),durationIsEmpty&&(result.durationIsEmpty=!0),!baseDataOffsetPresent&&defaultBaseIsMoof&&(result.baseDataOffsetIsMoof=!0),result},commonjsGlobal="undefined"!=typeof globalThis?globalThis:"undefined"!=typeof window?window:"undefined"!=typeof global?global:"undefined"!=typeof self?self:{},window_1="undefined"!=typeof window?window:void 0!==commonjsGlobal?commonjsGlobal:"undefined"!=typeof self?self:{},discardEmulationPreventionBytes=captionPacketParser_discardEmulationPreventionBytes,CaptionStream=captionStream.CaptionStream,mapToSample=function(offset,samples){for(var approximateOffset=offset,i=0;i<samples.length;i++){var sample=samples[i];if(approximateOffset<sample.size)return sample;approximateOffset-=sample.size}return null},parseCaptionNals=function(segment,videoTrackId){var trafs=findBox_1(segment,["moof","traf"]),mdats=findBox_1(segment,["mdat"]),captionNals={},mdatTrafPairs=[];return mdats.forEach((function(mdat,index){var matchingTraf=trafs[index];mdatTrafPairs.push({mdat:mdat,traf:matchingTraf})})),mdatTrafPairs.forEach((function(pair){var samples,result,mdat=pair.mdat,traf=pair.traf,tfhd=findBox_1(traf,["tfhd"]),headerInfo=parseTfhd(tfhd[0]),trackId=headerInfo.trackId,tfdt=findBox_1(traf,["tfdt"]),baseMediaDecodeTime=tfdt.length>0?parseTfdt(tfdt[0]).baseMediaDecodeTime:0,truns=findBox_1(traf,["trun"]);videoTrackId===trackId&&truns.length>0&&(samples=function(truns,baseMediaDecodeTime,tfhd){var currentDts=baseMediaDecodeTime,defaultSampleDuration=tfhd.defaultSampleDuration||0,defaultSampleSize=tfhd.defaultSampleSize||0,trackId=tfhd.trackId,allSamples=[];return truns.forEach((function(trun){var samples=parseTrun(trun).samples;samples.forEach((function(sample){void 0===sample.duration&&(sample.duration=defaultSampleDuration),void 0===sample.size&&(sample.size=defaultSampleSize),sample.trackId=trackId,sample.dts=currentDts,void 0===sample.compositionTimeOffset&&(sample.compositionTimeOffset=0),"bigint"==typeof currentDts?(sample.pts=currentDts+window_1.BigInt(sample.compositionTimeOffset),currentDts+=window_1.BigInt(sample.duration)):(sample.pts=currentDts+sample.compositionTimeOffset,currentDts+=sample.duration)})),allSamples=allSamples.concat(samples)})),allSamples}(truns,baseMediaDecodeTime,headerInfo),result=function(avcStream,samples,trackId){var seiNal,i,length,lastMatchedSample,avcView=new DataView(avcStream.buffer,avcStream.byteOffset,avcStream.byteLength),result={logs:[],seiNals:[]};for(i=0;i+4<avcStream.length;i+=length)if(length=avcView.getUint32(i),i+=4,!(length<=0))switch(31&avcStream[i]){case 6:var data=avcStream.subarray(i+1,i+1+length),matchingSample=mapToSample(i,samples);if(seiNal={nalUnitType:"sei_rbsp",size:length,data:data,escapedRBSP:discardEmulationPreventionBytes(data),trackId:trackId},matchingSample)seiNal.pts=matchingSample.pts,seiNal.dts=matchingSample.dts,lastMatchedSample=matchingSample;else{if(!lastMatchedSample){result.logs.push({level:"warn",message:"We've encountered a nal unit without data at "+i+" for trackId "+trackId+". See mux.js#223."});break}seiNal.pts=lastMatchedSample.pts,seiNal.dts=lastMatchedSample.dts}result.seiNals.push(seiNal)}return result}(mdat,samples,trackId),captionNals[trackId]||(captionNals[trackId]={seiNals:[],logs:[]}),captionNals[trackId].seiNals=captionNals[trackId].seiNals.concat(result.seiNals),captionNals[trackId].logs=captionNals[trackId].logs.concat(result.logs))})),captionNals},captionParser=function(){var captionStream,segmentCache,trackId,timescale,parsedCaptions,parsingPartial,isInitialized=!1;this.isInitialized=function(){return isInitialized},this.init=function(options){captionStream=new CaptionStream,isInitialized=!0,parsingPartial=!!options&&options.isPartial,captionStream.on("data",(function(event){event.startTime=event.startPts/timescale,event.endTime=event.endPts/timescale,parsedCaptions.captions.push(event),parsedCaptions.captionStreams[event.stream]=!0})),captionStream.on("log",(function(log){parsedCaptions.logs.push(log)}))},this.isNewInit=function(videoTrackIds,timescales){return!(videoTrackIds&&0===videoTrackIds.length||timescales&&"object"==typeof timescales&&0===Object.keys(timescales).length)&&(trackId!==videoTrackIds[0]||timescale!==timescales[trackId])},this.parse=function(segment,videoTrackIds,timescales){var parsedData;if(!this.isInitialized())return null;if(!videoTrackIds||!timescales)return null;if(this.isNewInit(videoTrackIds,timescales))trackId=videoTrackIds[0],timescale=timescales[trackId];else if(null===trackId||!timescale)return segmentCache.push(segment),null;for(;segmentCache.length>0;){var cachedSegment=segmentCache.shift();this.parse(cachedSegment,videoTrackIds,timescales)}return parsedData=function(segment,trackId,timescale){if(null===trackId)return null;var trackNals=parseCaptionNals(segment,trackId)[trackId]||{};return{seiNals:trackNals.seiNals,logs:trackNals.logs,timescale:timescale}}(segment,trackId,timescale),parsedData&&parsedData.logs&&(parsedCaptions.logs=parsedCaptions.logs.concat(parsedData.logs)),null!==parsedData&&parsedData.seiNals?(this.pushNals(parsedData.seiNals),this.flushStream(),parsedCaptions):parsedCaptions.logs.length?{logs:parsedCaptions.logs,captions:[],captionStreams:[]}:null},this.pushNals=function(nals){if(!this.isInitialized()||!nals||0===nals.length)return null;nals.forEach((function(nal){captionStream.push(nal)}))},this.flushStream=function(){if(!this.isInitialized())return null;parsingPartial?captionStream.partialFlush():captionStream.flush()},this.clearParsedCaptions=function(){parsedCaptions.captions=[],parsedCaptions.captionStreams={},parsedCaptions.logs=[]},this.resetCaptionStream=function(){if(!this.isInitialized())return null;captionStream.reset()},this.clearAllCaptions=function(){this.clearParsedCaptions(),this.resetCaptionStream()},this.reset=function(){segmentCache=[],trackId=null,timescale=null,parsedCaptions?this.clearParsedCaptions():parsedCaptions={captions:[],captionStreams:{},logs:[]},this.resetCaptionStream()},this.reset()},toUnsigned=bin_toUnsigned,toHexString=function(value){return("00"+value.toString(16)).slice(-2)},getUint64=numbers.getUint64;startTime=function(timescale,fragment){var lowestTime=findBox_1(fragment,["moof","traf"]).reduce((function(acc,traf){var baseTime,seconds,tfhd=findBox_1(traf,["tfhd"])[0],id=toUnsigned(tfhd[4]<<24|tfhd[5]<<16|tfhd[6]<<8|tfhd[7]),scale=timescale[id]||9e4,tfdt=findBox_1(traf,["tfdt"])[0],dv=new DataView(tfdt.buffer,tfdt.byteOffset,tfdt.byteLength);return"bigint"==typeof(baseTime=1===tfdt[0]?getUint64(tfdt.subarray(4,12)):dv.getUint32(4))?seconds=baseTime/window_1.BigInt(scale):"number"!=typeof baseTime||isNaN(baseTime)||(seconds=baseTime/scale),seconds<Number.MAX_SAFE_INTEGER&&(seconds=Number(seconds)),seconds<acc&&(acc=seconds),acc}),1/0);return"bigint"==typeof lowestTime||isFinite(lowestTime)?lowestTime:0},getTimescaleFromMediaHeader=function(mdhd){var index=0===mdhd[0]?12:20;return toUnsigned(mdhd[index]<<24|mdhd[index+1]<<16|mdhd[index+2]<<8|mdhd[index+3])},getTracks=function(init){var traks=findBox_1(init,["moov","trak"]),tracks=[];return traks.forEach((function(trak){var view,tkhdVersion,track={},tkhd=findBox_1(trak,["tkhd"])[0];tkhd&&(tkhdVersion=(view=new DataView(tkhd.buffer,tkhd.byteOffset,tkhd.byteLength)).getUint8(0),track.id=0===tkhdVersion?view.getUint32(12):view.getUint32(20));var hdlr=findBox_1(trak,["mdia","hdlr"])[0];if(hdlr){var type=parseType_1(hdlr.subarray(8,12));track.type="vide"===type?"video":"soun"===type?"audio":type}var stsd=findBox_1(trak,["mdia","minf","stbl","stsd"])[0];if(stsd){var sampleDescriptions=stsd.subarray(8);track.codec=parseType_1(sampleDescriptions.subarray(4,8));var codecConfig,codecBox=findBox_1(sampleDescriptions,[track.codec])[0];codecBox&&(/^[asm]vc[1-9]$/i.test(track.codec)?(codecConfig=codecBox.subarray(78),"avcC"===parseType_1(codecConfig.subarray(4,8))&&codecConfig.length>11?(track.codec+=".",track.codec+=toHexString(codecConfig[9]),track.codec+=toHexString(codecConfig[10]),track.codec+=toHexString(codecConfig[11])):track.codec="avc1.4d400d"):/^mp4[a,v]$/i.test(track.codec)?(codecConfig=codecBox.subarray(28),"esds"===parseType_1(codecConfig.subarray(4,8))&&codecConfig.length>20&&0!==codecConfig[19]?(track.codec+="."+toHexString(codecConfig[19]),track.codec+="."+toHexString(codecConfig[20]>>>2&63).replace(/^0/,"")):track.codec="mp4a.40.2"):track.codec=track.codec.toLowerCase())}var mdhd=findBox_1(trak,["mdia","mdhd"])[0];mdhd&&(track.timescale=getTimescaleFromMediaHeader(mdhd)),tracks.push(track)})),tracks};var probe$2_startTime=startTime,probe$2_tracks=getTracks,parsePid=function(packet){var pid=31&packet[1];return pid<<=8,pid|=packet[2]},parsePayloadUnitStartIndicator=function(packet){return!!(64&packet[1])},parseAdaptionField=function(packet){var offset=0;return(48&packet[3])>>>4>1&&(offset+=packet[4]+1),offset},parseNalUnitType=function(type){switch(type){case 5:return"slice_layer_without_partitioning_rbsp_idr";case 6:return"sei_rbsp";case 7:return"seq_parameter_set_rbsp";case 8:return"pic_parameter_set_rbsp";case 9:return"access_unit_delimiter_rbsp";default:return null}},probe$1={parseType:function(packet,pmtPid){var pid=parsePid(packet);return 0===pid?"pat":pid===pmtPid?"pmt":pmtPid?"pes":null},parsePat:function(packet){var pusi=parsePayloadUnitStartIndicator(packet),offset=4+parseAdaptionField(packet);return pusi&&(offset+=packet[offset]+1),(31&packet[offset+10])<<8|packet[offset+11]},parsePmt:function(packet){var programMapTable={},pusi=parsePayloadUnitStartIndicator(packet),payloadOffset=4+parseAdaptionField(packet);if(pusi&&(payloadOffset+=packet[payloadOffset]+1),1&packet[payloadOffset+5]){var tableEnd;tableEnd=3+((15&packet[payloadOffset+1])<<8|packet[payloadOffset+2])-4;for(var offset=12+((15&packet[payloadOffset+10])<<8|packet[payloadOffset+11]);offset<tableEnd;){var i=payloadOffset+offset;programMapTable[(31&packet[i+1])<<8|packet[i+2]]=packet[i],offset+=5+((15&packet[i+3])<<8|packet[i+4])}return programMapTable}},parsePayloadUnitStartIndicator:parsePayloadUnitStartIndicator,parsePesType:function(packet,programMapTable){switch(programMapTable[parsePid(packet)]){case streamTypes.H264_STREAM_TYPE:return"video";case streamTypes.ADTS_STREAM_TYPE:return"audio";case streamTypes.METADATA_STREAM_TYPE:return"timed-metadata";default:return null}},parsePesTime:function(packet){if(!parsePayloadUnitStartIndicator(packet))return null;var offset=4+parseAdaptionField(packet);if(offset>=packet.byteLength)return null;var ptsDtsFlags,pes=null;return 192&(ptsDtsFlags=packet[offset+7])&&((pes={}).pts=(14&packet[offset+9])<<27|(255&packet[offset+10])<<20|(254&packet[offset+11])<<12|(255&packet[offset+12])<<5|(254&packet[offset+13])>>>3,pes.pts*=4,pes.pts+=(6&packet[offset+13])>>>1,pes.dts=pes.pts,64&ptsDtsFlags&&(pes.dts=(14&packet[offset+14])<<27|(255&packet[offset+15])<<20|(254&packet[offset+16])<<12|(255&packet[offset+17])<<5|(254&packet[offset+18])>>>3,pes.dts*=4,pes.dts+=(6&packet[offset+18])>>>1)),pes},videoPacketContainsKeyFrame:function(packet){for(var offset=4+parseAdaptionField(packet),frameBuffer=packet.subarray(offset),frameI=0,frameSyncPoint=0,foundKeyFrame=!1;frameSyncPoint<frameBuffer.byteLength-3;frameSyncPoint++)if(1===frameBuffer[frameSyncPoint+2]){frameI=frameSyncPoint+5;break}for(;frameI<frameBuffer.byteLength;)switch(frameBuffer[frameI]){case 0:if(0!==frameBuffer[frameI-1]){frameI+=2;break}if(0!==frameBuffer[frameI-2]){frameI++;break}frameSyncPoint+3!==frameI-2&&"slice_layer_without_partitioning_rbsp_idr"===parseNalUnitType(31&frameBuffer[frameSyncPoint+3])&&(foundKeyFrame=!0);do{frameI++}while(1!==frameBuffer[frameI]&&frameI<frameBuffer.length);frameSyncPoint=frameI-2,frameI+=3;break;case 1:if(0!==frameBuffer[frameI-1]||0!==frameBuffer[frameI-2]){frameI+=3;break}"slice_layer_without_partitioning_rbsp_idr"===parseNalUnitType(31&frameBuffer[frameSyncPoint+3])&&(foundKeyFrame=!0),frameSyncPoint=frameI-2,frameI+=3;break;default:frameI+=3}return frameBuffer=frameBuffer.subarray(frameSyncPoint),frameI-=frameSyncPoint,frameSyncPoint=0,frameBuffer&&frameBuffer.byteLength>3&&"slice_layer_without_partitioning_rbsp_idr"===parseNalUnitType(31&frameBuffer[frameSyncPoint+3])&&(foundKeyFrame=!0),foundKeyFrame}},handleRollover=timestampRolloverStream_handleRollover,probe={};probe.ts=probe$1,probe.aac=utils;var ONE_SECOND_IN_TS=clock_ONE_SECOND_IN_TS$0,parseAudioPes_=function(bytes,pmt,result){for(var packet,pesType,pusi,parsed,startIndex=0,endIndex=188,endLoop=!1;endIndex<=bytes.byteLength;)if(71!==bytes[startIndex]||71!==bytes[endIndex]&&endIndex!==bytes.byteLength)startIndex++,endIndex++;else{if(packet=bytes.subarray(startIndex,endIndex),"pes"===probe.ts.parseType(packet,pmt.pid))pesType=probe.ts.parsePesType(packet,pmt.table),pusi=probe.ts.parsePayloadUnitStartIndicator(packet),"audio"===pesType&&pusi&&(parsed=probe.ts.parsePesTime(packet))&&(parsed.type="audio",result.audio.push(parsed),endLoop=!0);if(endLoop)break;startIndex+=188,endIndex+=188}for(startIndex=(endIndex=bytes.byteLength)-188,endLoop=!1;startIndex>=0;)if(71!==bytes[startIndex]||71!==bytes[endIndex]&&endIndex!==bytes.byteLength)startIndex--,endIndex--;else{if(packet=bytes.subarray(startIndex,endIndex),"pes"===probe.ts.parseType(packet,pmt.pid))pesType=probe.ts.parsePesType(packet,pmt.table),pusi=probe.ts.parsePayloadUnitStartIndicator(packet),"audio"===pesType&&pusi&&(parsed=probe.ts.parsePesTime(packet))&&(parsed.type="audio",result.audio.push(parsed),endLoop=!0);if(endLoop)break;startIndex-=188,endIndex-=188}},parseVideoPes_=function(bytes,pmt,result){for(var packet,pesType,pusi,parsed,frame,i,pes,startIndex=0,endIndex=188,endLoop=!1,currentFrame={data:[],size:0};endIndex<bytes.byteLength;)if(71!==bytes[startIndex]||71!==bytes[endIndex])startIndex++,endIndex++;else{if(packet=bytes.subarray(startIndex,endIndex),"pes"===probe.ts.parseType(packet,pmt.pid))if(pesType=probe.ts.parsePesType(packet,pmt.table),pusi=probe.ts.parsePayloadUnitStartIndicator(packet),"video"===pesType&&(pusi&&!endLoop&&(parsed=probe.ts.parsePesTime(packet))&&(parsed.type="video",result.video.push(parsed),endLoop=!0),!result.firstKeyFrame)){if(pusi&&0!==currentFrame.size){for(frame=new Uint8Array(currentFrame.size),i=0;currentFrame.data.length;)pes=currentFrame.data.shift(),frame.set(pes,i),i+=pes.byteLength;if(probe.ts.videoPacketContainsKeyFrame(frame)){var firstKeyFrame=probe.ts.parsePesTime(frame);firstKeyFrame?(result.firstKeyFrame=firstKeyFrame,result.firstKeyFrame.type="video"):console.warn("Failed to extract PTS/DTS from PES at first keyframe. This could be an unusual TS segment, or else mux.js did not parse your TS segment correctly. If you know your TS segments do contain PTS/DTS on keyframes please file a bug report! You can try ffprobe to double check for yourself.")}currentFrame.size=0}currentFrame.data.push(packet),currentFrame.size+=packet.byteLength}if(endLoop&&result.firstKeyFrame)break;startIndex+=188,endIndex+=188}for(startIndex=(endIndex=bytes.byteLength)-188,endLoop=!1;startIndex>=0;)if(71!==bytes[startIndex]||71!==bytes[endIndex])startIndex--,endIndex--;else{if(packet=bytes.subarray(startIndex,endIndex),"pes"===probe.ts.parseType(packet,pmt.pid))pesType=probe.ts.parsePesType(packet,pmt.table),pusi=probe.ts.parsePayloadUnitStartIndicator(packet),"video"===pesType&&pusi&&(parsed=probe.ts.parsePesTime(packet))&&(parsed.type="video",result.video.push(parsed),endLoop=!0);if(endLoop)break;startIndex-=188,endIndex-=188}},inspectTs_=function(bytes){var pmt={pid:null,table:null},result={};for(var pid in function(bytes,pmt){for(var packet,startIndex=0,endIndex=188;endIndex<bytes.byteLength;)if(71!==bytes[startIndex]||71!==bytes[endIndex])startIndex++,endIndex++;else{switch(packet=bytes.subarray(startIndex,endIndex),probe.ts.parseType(packet,pmt.pid)){case"pat":pmt.pid=probe.ts.parsePat(packet);break;case"pmt":var table=probe.ts.parsePmt(packet);pmt.table=pmt.table||{},Object.keys(table).forEach((function(key){pmt.table[key]=table[key]}))}startIndex+=188,endIndex+=188}}(bytes,pmt),pmt.table){if(pmt.table.hasOwnProperty(pid))switch(pmt.table[pid]){case streamTypes.H264_STREAM_TYPE:result.video=[],parseVideoPes_(bytes,pmt,result),0===result.video.length&&delete result.video;break;case streamTypes.ADTS_STREAM_TYPE:result.audio=[],parseAudioPes_(bytes,pmt,result),0===result.audio.length&&delete result.audio}}return result},tsInspector_inspect=function(bytes,baseTimestamp){var result;return result=probe.aac.isLikelyAacData(bytes)?function(bytes){for(var packet,endLoop=!1,audioCount=0,sampleRate=null,timestamp=null,frameSize=0,byteIndex=0;bytes.length-byteIndex>=3;){switch(probe.aac.parseType(bytes,byteIndex)){case"timed-metadata":if(bytes.length-byteIndex<10){endLoop=!0;break}if((frameSize=probe.aac.parseId3TagSize(bytes,byteIndex))>bytes.length){endLoop=!0;break}null===timestamp&&(packet=bytes.subarray(byteIndex,byteIndex+frameSize),timestamp=probe.aac.parseAacTimestamp(packet)),byteIndex+=frameSize;break;case"audio":if(bytes.length-byteIndex<7){endLoop=!0;break}if((frameSize=probe.aac.parseAdtsSize(bytes,byteIndex))>bytes.length){endLoop=!0;break}null===sampleRate&&(packet=bytes.subarray(byteIndex,byteIndex+frameSize),sampleRate=probe.aac.parseSampleRate(packet)),audioCount++,byteIndex+=frameSize;break;default:byteIndex++}if(endLoop)return null}if(null===sampleRate||null===timestamp)return null;var audioTimescale=ONE_SECOND_IN_TS/sampleRate;return{audio:[{type:"audio",dts:timestamp,pts:timestamp},{type:"audio",dts:timestamp+1024*audioCount*audioTimescale,pts:timestamp+1024*audioCount*audioTimescale}]}}(bytes):inspectTs_(bytes),result&&(result.audio||result.video)?(function(segmentInfo,baseTimestamp){if(segmentInfo.audio&&segmentInfo.audio.length){var audioBaseTimestamp=baseTimestamp;(void 0===audioBaseTimestamp||isNaN(audioBaseTimestamp))&&(audioBaseTimestamp=segmentInfo.audio[0].dts),segmentInfo.audio.forEach((function(info){info.dts=handleRollover(info.dts,audioBaseTimestamp),info.pts=handleRollover(info.pts,audioBaseTimestamp),info.dtsTime=info.dts/ONE_SECOND_IN_TS,info.ptsTime=info.pts/ONE_SECOND_IN_TS}))}if(segmentInfo.video&&segmentInfo.video.length){var videoBaseTimestamp=baseTimestamp;if((void 0===videoBaseTimestamp||isNaN(videoBaseTimestamp))&&(videoBaseTimestamp=segmentInfo.video[0].dts),segmentInfo.video.forEach((function(info){info.dts=handleRollover(info.dts,videoBaseTimestamp),info.pts=handleRollover(info.pts,videoBaseTimestamp),info.dtsTime=info.dts/ONE_SECOND_IN_TS,info.ptsTime=info.pts/ONE_SECOND_IN_TS})),segmentInfo.firstKeyFrame){var frame=segmentInfo.firstKeyFrame;frame.dts=handleRollover(frame.dts,videoBaseTimestamp),frame.pts=handleRollover(frame.pts,videoBaseTimestamp),frame.dtsTime=frame.dts/ONE_SECOND_IN_TS,frame.ptsTime=frame.pts/ONE_SECOND_IN_TS}}}(result,baseTimestamp),result):null},MessageHandlers=function(){function MessageHandlers(self,options){this.options=options||{},this.self=self,this.init()}var _proto=MessageHandlers.prototype;return _proto.init=function(){this.transmuxer&&this.transmuxer.dispose(),this.transmuxer=new transmuxer.Transmuxer(this.options),function(self,transmuxer){transmuxer.on("data",(function(segment){var initArray=segment.initSegment;segment.initSegment={data:initArray.buffer,byteOffset:initArray.byteOffset,byteLength:initArray.byteLength};var typedArray=segment.data;segment.data=typedArray.buffer,self.postMessage({action:"data",segment:segment,byteOffset:typedArray.byteOffset,byteLength:typedArray.byteLength},[segment.data])})),transmuxer.on("done",(function(data){self.postMessage({action:"done"})})),transmuxer.on("gopInfo",(function(gopInfo){self.postMessage({action:"gopInfo",gopInfo:gopInfo})})),transmuxer.on("videoSegmentTimingInfo",(function(timingInfo){var videoSegmentTimingInfo={start:{decode:clock_videoTsToSeconds$0(timingInfo.start.dts),presentation:clock_videoTsToSeconds$0(timingInfo.start.pts)},end:{decode:clock_videoTsToSeconds$0(timingInfo.end.dts),presentation:clock_videoTsToSeconds$0(timingInfo.end.pts)},baseMediaDecodeTime:clock_videoTsToSeconds$0(timingInfo.baseMediaDecodeTime)};timingInfo.prependedContentDuration&&(videoSegmentTimingInfo.prependedContentDuration=clock_videoTsToSeconds$0(timingInfo.prependedContentDuration)),self.postMessage({action:"videoSegmentTimingInfo",videoSegmentTimingInfo:videoSegmentTimingInfo})})),transmuxer.on("audioSegmentTimingInfo",(function(timingInfo){var audioSegmentTimingInfo={start:{decode:clock_videoTsToSeconds$0(timingInfo.start.dts),presentation:clock_videoTsToSeconds$0(timingInfo.start.pts)},end:{decode:clock_videoTsToSeconds$0(timingInfo.end.dts),presentation:clock_videoTsToSeconds$0(timingInfo.end.pts)},baseMediaDecodeTime:clock_videoTsToSeconds$0(timingInfo.baseMediaDecodeTime)};timingInfo.prependedContentDuration&&(audioSegmentTimingInfo.prependedContentDuration=clock_videoTsToSeconds$0(timingInfo.prependedContentDuration)),self.postMessage({action:"audioSegmentTimingInfo",audioSegmentTimingInfo:audioSegmentTimingInfo})})),transmuxer.on("id3Frame",(function(id3Frame){self.postMessage({action:"id3Frame",id3Frame:id3Frame})})),transmuxer.on("caption",(function(caption){self.postMessage({action:"caption",caption:caption})})),transmuxer.on("trackinfo",(function(trackInfo){self.postMessage({action:"trackinfo",trackInfo:trackInfo})})),transmuxer.on("audioTimingInfo",(function(audioTimingInfo){self.postMessage({action:"audioTimingInfo",audioTimingInfo:{start:clock_videoTsToSeconds$0(audioTimingInfo.start),end:clock_videoTsToSeconds$0(audioTimingInfo.end)}})})),transmuxer.on("videoTimingInfo",(function(videoTimingInfo){self.postMessage({action:"videoTimingInfo",videoTimingInfo:{start:clock_videoTsToSeconds$0(videoTimingInfo.start),end:clock_videoTsToSeconds$0(videoTimingInfo.end)}})})),transmuxer.on("log",(function(log){self.postMessage({action:"log",log:log})}))}(this.self,this.transmuxer)},_proto.pushMp4Captions=function(data){this.captionParser||(this.captionParser=new captionParser,this.captionParser.init());var segment=new Uint8Array(data.data,data.byteOffset,data.byteLength),parsed=this.captionParser.parse(segment,data.trackIds,data.timescales);this.self.postMessage({action:"mp4Captions",captions:parsed&&parsed.captions||[],logs:parsed&&parsed.logs||[],data:segment.buffer},[segment.buffer])},_proto.probeMp4StartTime=function(_ref){var timescales=_ref.timescales,data=_ref.data,startTime=probe$2_startTime(timescales,data);this.self.postMessage({action:"probeMp4StartTime",startTime:startTime,data:data},[data.buffer])},_proto.probeMp4Tracks=function(_ref2){var data=_ref2.data,tracks=probe$2_tracks(data);this.self.postMessage({action:"probeMp4Tracks",tracks:tracks,data:data},[data.buffer])},_proto.probeTs=function(_ref3){var data=_ref3.data,baseStartTime=_ref3.baseStartTime,tsStartTime="number"!=typeof baseStartTime||isNaN(baseStartTime)?void 0:baseStartTime*clock_ONE_SECOND_IN_TS$0,timeInfo=tsInspector_inspect(data,tsStartTime),result=null;timeInfo&&((result={hasVideo:timeInfo.video&&2===timeInfo.video.length||!1,hasAudio:timeInfo.audio&&2===timeInfo.audio.length||!1}).hasVideo&&(result.videoStart=timeInfo.video[0].ptsTime),result.hasAudio&&(result.audioStart=timeInfo.audio[0].ptsTime)),this.self.postMessage({action:"probeTs",result:result,data:data},[data.buffer])},_proto.clearAllMp4Captions=function(){this.captionParser&&this.captionParser.clearAllCaptions()},_proto.clearParsedMp4Captions=function(){this.captionParser&&this.captionParser.clearParsedCaptions()},_proto.push=function(data){var segment=new Uint8Array(data.data,data.byteOffset,data.byteLength);this.transmuxer.push(segment)},_proto.reset=function(){this.transmuxer.reset()},_proto.setTimestampOffset=function(data){var timestampOffset=data.timestampOffset||0;this.transmuxer.setBaseMediaDecodeTime(Math.round(clock_secondsToVideoTs$0(timestampOffset)))},_proto.setAudioAppendStart=function(data){this.transmuxer.setAudioAppendStart(Math.ceil(clock_secondsToVideoTs$0(data.appendStart)))},_proto.setRemux=function(data){this.transmuxer.setRemux(data.remux)},_proto.flush=function(data){this.transmuxer.flush(),self.postMessage({action:"done",type:"transmuxed"})},_proto.endTimeline=function(){this.transmuxer.endTimeline(),self.postMessage({action:"endedtimeline",type:"transmuxed"})},_proto.alignGopsWith=function(data){this.transmuxer.alignGopsWith(data.gopsToAlignWith.slice())},MessageHandlers}();self.onmessage=function(event){"init"===event.data.action&&event.data.options?this.messageHandlers=new MessageHandlers(self,event.data.options):(this.messageHandlers||(this.messageHandlers=new MessageHandlers(self)),event.data&&event.data.action&&"init"!==event.data.action&&this.messageHandlers[event.data.action]&&this.messageHandlers[event.data.action](event.data))}}))),TransmuxWorker=factory(workerCode$1),processTransmux=function(options){var transmuxer=options.transmuxer,bytes=options.bytes,audioAppendStart=options.audioAppendStart,gopsToAlignWith=options.gopsToAlignWith,remux=options.remux,onData=options.onData,onTrackInfo=options.onTrackInfo,onAudioTimingInfo=options.onAudioTimingInfo,onVideoTimingInfo=options.onVideoTimingInfo,onVideoSegmentTimingInfo=options.onVideoSegmentTimingInfo,onAudioSegmentTimingInfo=options.onAudioSegmentTimingInfo,onId3=options.onId3,onCaptions=options.onCaptions,onDone=options.onDone,onEndedTimeline=options.onEndedTimeline,onTransmuxerLog=options.onTransmuxerLog,isEndOfTimeline=options.isEndOfTimeline,transmuxedData={buffer:[]},waitForEndedTimelineEvent=isEndOfTimeline;if(transmuxer.onmessage=function(event){transmuxer.currentTransmux===options&&("data"===event.data.action&&function(event,transmuxedData,callback){var _event$data$segment=event.data.segment,type=_event$data$segment.type,initSegment=_event$data$segment.initSegment,captions=_event$data$segment.captions,captionStreams=_event$data$segment.captionStreams,metadata=_event$data$segment.metadata,videoFrameDtsTime=_event$data$segment.videoFrameDtsTime,videoFramePtsTime=_event$data$segment.videoFramePtsTime;transmuxedData.buffer.push({captions:captions,captionStreams:captionStreams,metadata:metadata});var boxes=event.data.segment.boxes||{data:event.data.segment.data},result={type:type,data:new Uint8Array(boxes.data,boxes.data.byteOffset,boxes.data.byteLength),initSegment:new Uint8Array(initSegment.data,initSegment.byteOffset,initSegment.byteLength)};void 0!==videoFrameDtsTime&&(result.videoFrameDtsTime=videoFrameDtsTime),void 0!==videoFramePtsTime&&(result.videoFramePtsTime=videoFramePtsTime),callback(result)}(event,transmuxedData,onData),"trackinfo"===event.data.action&&onTrackInfo(event.data.trackInfo),"gopInfo"===event.data.action&&function(event,transmuxedData){transmuxedData.gopInfo=event.data.gopInfo}(event,transmuxedData),"audioTimingInfo"===event.data.action&&onAudioTimingInfo(event.data.audioTimingInfo),"videoTimingInfo"===event.data.action&&onVideoTimingInfo(event.data.videoTimingInfo),"videoSegmentTimingInfo"===event.data.action&&onVideoSegmentTimingInfo(event.data.videoSegmentTimingInfo),"audioSegmentTimingInfo"===event.data.action&&onAudioSegmentTimingInfo(event.data.audioSegmentTimingInfo),"id3Frame"===event.data.action&&onId3([event.data.id3Frame],event.data.id3Frame.dispatchType),"caption"===event.data.action&&onCaptions(event.data.caption),"endedtimeline"===event.data.action&&(waitForEndedTimelineEvent=!1,onEndedTimeline()),"log"===event.data.action&&onTransmuxerLog(event.data.log),"transmuxed"===event.data.type&&(waitForEndedTimelineEvent||(transmuxer.onmessage=null,function(_ref){var transmuxedData=_ref.transmuxedData,callback=_ref.callback;transmuxedData.buffer=[],callback(transmuxedData)}({transmuxedData:transmuxedData,callback:onDone}),dequeue(transmuxer))))},audioAppendStart&&transmuxer.postMessage({action:"setAudioAppendStart",appendStart:audioAppendStart}),Array.isArray(gopsToAlignWith)&&transmuxer.postMessage({action:"alignGopsWith",gopsToAlignWith:gopsToAlignWith}),void 0!==remux&&transmuxer.postMessage({action:"setRemux",remux:remux}),bytes.byteLength){var buffer=bytes instanceof ArrayBuffer?bytes:bytes.buffer,byteOffset=bytes instanceof ArrayBuffer?0:bytes.byteOffset;transmuxer.postMessage({action:"push",data:buffer,byteOffset:byteOffset,byteLength:bytes.byteLength},[buffer])}isEndOfTimeline&&transmuxer.postMessage({action:"endTimeline"}),transmuxer.postMessage({action:"flush"})},dequeue=function(transmuxer){transmuxer.currentTransmux=null,transmuxer.transmuxQueue.length&&(transmuxer.currentTransmux=transmuxer.transmuxQueue.shift(),"function"==typeof transmuxer.currentTransmux?transmuxer.currentTransmux():processTransmux(transmuxer.currentTransmux))},processAction=function(transmuxer,action){transmuxer.postMessage({action:action}),dequeue(transmuxer)},enqueueAction=function(action,transmuxer){if(!transmuxer.currentTransmux)return transmuxer.currentTransmux=action,void processAction(transmuxer,action);transmuxer.transmuxQueue.push(processAction.bind(null,transmuxer,action))},transmux=function(options){if(!options.transmuxer.currentTransmux)return options.transmuxer.currentTransmux=options,void processTransmux(options);options.transmuxer.transmuxQueue.push(options)},segmentTransmuxer_reset=function(transmuxer){enqueueAction("reset",transmuxer)},segmentTransmuxer_createTransmuxer=function(options){var transmuxer=new TransmuxWorker;transmuxer.currentTransmux=null,transmuxer.transmuxQueue=[];var term=transmuxer.terminate;return transmuxer.terminate=function(){return transmuxer.currentTransmux=null,transmuxer.transmuxQueue.length=0,term.call(transmuxer)},transmuxer.postMessage({action:"init",options:options}),transmuxer},workerCallback=function(options){var transmuxer=options.transmuxer,endAction=options.endAction||options.action,callback=options.callback,message=_extends_1({},options,{endAction:null,transmuxer:null,callback:null});if(transmuxer.addEventListener("message",(function listenForEndEvent(event){event.data.action===endAction&&(transmuxer.removeEventListener("message",listenForEndEvent),event.data.data&&(event.data.data=new Uint8Array(event.data.data,options.byteOffset||0,options.byteLength||event.data.data.byteLength),options.data&&(options.data=event.data.data)),callback(event.data))})),options.data){var isArrayBuffer=options.data instanceof ArrayBuffer;message.byteOffset=isArrayBuffer?0:options.data.byteOffset,message.byteLength=options.data.byteLength;var transfers=[isArrayBuffer?options.data:options.data.buffer];transmuxer.postMessage(message,transfers)}else transmuxer.postMessage(message)},REQUEST_ERRORS_FAILURE=2,REQUEST_ERRORS_TIMEOUT=-101,REQUEST_ERRORS_ABORTED=-102,abortAll=function(activeXhrs){activeXhrs.forEach((function(xhr){xhr.abort()}))},handleErrors=function(error,request){return request.timedout?{status:request.status,message:"HLS request timed-out at URL: "+request.uri,code:REQUEST_ERRORS_TIMEOUT,xhr:request}:request.aborted?{status:request.status,message:"HLS request aborted at URL: "+request.uri,code:REQUEST_ERRORS_ABORTED,xhr:request}:error?{status:request.status,message:"HLS request errored at URL: "+request.uri,code:REQUEST_ERRORS_FAILURE,xhr:request}:"arraybuffer"===request.responseType&&0===request.response.byteLength?{status:request.status,message:"Empty HLS response at URL: "+request.uri,code:REQUEST_ERRORS_FAILURE,xhr:request}:null},handleKeyResponse=function(segment,objects,finishProcessingFn){return function(error,request){var response=request.response,errorObj=handleErrors(error,request);if(errorObj)return finishProcessingFn(errorObj,segment);if(16!==response.byteLength)return finishProcessingFn({status:request.status,message:"Invalid HLS key at URL: "+request.uri,code:REQUEST_ERRORS_FAILURE,xhr:request},segment);for(var view=new DataView(response),bytes=new Uint32Array([view.getUint32(0),view.getUint32(4),view.getUint32(8),view.getUint32(12)]),i=0;i<objects.length;i++)objects[i].bytes=bytes;return finishProcessingFn(null,segment)}},parseInitSegment=function(segment,_callback){var type=detectContainerForBytes(segment.map.bytes);if("mp4"!==type){var uri=segment.map.resolvedUri||segment.map.uri;return _callback({internal:!0,message:"Found unsupported "+(type||"unknown")+" container for initialization segment at URL: "+uri,code:REQUEST_ERRORS_FAILURE})}workerCallback({action:"probeMp4Tracks",data:segment.map.bytes,transmuxer:segment.transmuxer,callback:function(_ref){var tracks=_ref.tracks,data=_ref.data;return segment.map.bytes=data,tracks.forEach((function(track){segment.map.tracks=segment.map.tracks||{},segment.map.tracks[track.type]||(segment.map.tracks[track.type]=track,"number"==typeof track.id&&track.timescale&&(segment.map.timescales=segment.map.timescales||{},segment.map.timescales[track.id]=track.timescale))})),_callback(null)}})},handleSegmentResponse=function(_ref3){var segment=_ref3.segment,finishProcessingFn=_ref3.finishProcessingFn,responseType=_ref3.responseType;return function(error,request){var errorObj=handleErrors(error,request);if(errorObj)return finishProcessingFn(errorObj,segment);var newBytes="arraybuffer"!==responseType&&request.responseText?function(string){for(var view=new Uint8Array(new ArrayBuffer(string.length)),i=0;i<string.length;i++)view[i]=string.charCodeAt(i);return view.buffer}(request.responseText.substring(segment.lastReachedChar||0)):request.response;return segment.stats=function(request){return{bandwidth:request.bandwidth,bytesReceived:request.bytesReceived||0,roundTripTime:request.roundTripTime||0}}(request),segment.key?segment.encryptedBytes=new Uint8Array(newBytes):segment.bytes=new Uint8Array(newBytes),finishProcessingFn(null,segment)}},transmuxAndNotify=function(_ref4){var segment=_ref4.segment,bytes=_ref4.bytes,trackInfoFn=_ref4.trackInfoFn,timingInfoFn=_ref4.timingInfoFn,videoSegmentTimingInfoFn=_ref4.videoSegmentTimingInfoFn,audioSegmentTimingInfoFn=_ref4.audioSegmentTimingInfoFn,id3Fn=_ref4.id3Fn,captionsFn=_ref4.captionsFn,isEndOfTimeline=_ref4.isEndOfTimeline,endedTimelineFn=_ref4.endedTimelineFn,dataFn=_ref4.dataFn,doneFn=_ref4.doneFn,onTransmuxerLog=_ref4.onTransmuxerLog,fmp4Tracks=segment.map&&segment.map.tracks||{},isMuxed=Boolean(fmp4Tracks.audio&&fmp4Tracks.video),audioStartFn=timingInfoFn.bind(null,segment,"audio","start"),audioEndFn=timingInfoFn.bind(null,segment,"audio","end"),videoStartFn=timingInfoFn.bind(null,segment,"video","start"),videoEndFn=timingInfoFn.bind(null,segment,"video","end");workerCallback({action:"probeTs",transmuxer:segment.transmuxer,data:bytes,baseStartTime:segment.baseStartTime,callback:function(data){segment.bytes=bytes=data.data;var probeResult=data.result;probeResult&&(trackInfoFn(segment,{hasAudio:probeResult.hasAudio,hasVideo:probeResult.hasVideo,isMuxed:isMuxed}),trackInfoFn=null,probeResult.hasAudio&&!isMuxed&&audioStartFn(probeResult.audioStart),probeResult.hasVideo&&videoStartFn(probeResult.videoStart),audioStartFn=null,videoStartFn=null),transmux({bytes:bytes,transmuxer:segment.transmuxer,audioAppendStart:segment.audioAppendStart,gopsToAlignWith:segment.gopsToAlignWith,remux:isMuxed,onData:function(result){result.type="combined"===result.type?"video":result.type,dataFn(segment,result)},onTrackInfo:function(trackInfo){trackInfoFn&&(isMuxed&&(trackInfo.isMuxed=!0),trackInfoFn(segment,trackInfo))},onAudioTimingInfo:function(audioTimingInfo){audioStartFn&&void 0!==audioTimingInfo.start&&(audioStartFn(audioTimingInfo.start),audioStartFn=null),audioEndFn&&void 0!==audioTimingInfo.end&&audioEndFn(audioTimingInfo.end)},onVideoTimingInfo:function(videoTimingInfo){videoStartFn&&void 0!==videoTimingInfo.start&&(videoStartFn(videoTimingInfo.start),videoStartFn=null),videoEndFn&&void 0!==videoTimingInfo.end&&videoEndFn(videoTimingInfo.end)},onVideoSegmentTimingInfo:function(videoSegmentTimingInfo){videoSegmentTimingInfoFn(videoSegmentTimingInfo)},onAudioSegmentTimingInfo:function(audioSegmentTimingInfo){audioSegmentTimingInfoFn(audioSegmentTimingInfo)},onId3:function(id3Frames,dispatchType){id3Fn(segment,id3Frames,dispatchType)},onCaptions:function(captions){captionsFn(segment,[captions])},isEndOfTimeline:isEndOfTimeline,onEndedTimeline:function(){endedTimelineFn()},onTransmuxerLog:onTransmuxerLog,onDone:function(result){doneFn&&(result.type="combined"===result.type?"video":result.type,doneFn(null,segment,result))}})}})},handleSegmentBytes=function(_ref5){var segment=_ref5.segment,bytes=_ref5.bytes,trackInfoFn=_ref5.trackInfoFn,timingInfoFn=_ref5.timingInfoFn,videoSegmentTimingInfoFn=_ref5.videoSegmentTimingInfoFn,audioSegmentTimingInfoFn=_ref5.audioSegmentTimingInfoFn,id3Fn=_ref5.id3Fn,captionsFn=_ref5.captionsFn,isEndOfTimeline=_ref5.isEndOfTimeline,endedTimelineFn=_ref5.endedTimelineFn,dataFn=_ref5.dataFn,doneFn=_ref5.doneFn,onTransmuxerLog=_ref5.onTransmuxerLog,bytesAsUint8Array=new Uint8Array(bytes);if(function(bytes){return findBox(bytes,["moof"]).length>0}(bytesAsUint8Array)){segment.isFmp4=!0;var tracks=segment.map.tracks,trackInfo={isFmp4:!0,hasVideo:!!tracks.video,hasAudio:!!tracks.audio};tracks.audio&&tracks.audio.codec&&"enca"!==tracks.audio.codec&&(trackInfo.audioCodec=tracks.audio.codec),tracks.video&&tracks.video.codec&&"encv"!==tracks.video.codec&&(trackInfo.videoCodec=tracks.video.codec),tracks.video&&tracks.audio&&(trackInfo.isMuxed=!0),trackInfoFn(segment,trackInfo);var finishLoading=function(captions){dataFn(segment,{data:bytesAsUint8Array,type:trackInfo.hasAudio&&!trackInfo.isMuxed?"audio":"video"}),captions&&captions.length&&captionsFn(segment,captions),doneFn(null,segment,{})};workerCallback({action:"probeMp4StartTime",timescales:segment.map.timescales,data:bytesAsUint8Array,transmuxer:segment.transmuxer,callback:function(_ref6){var data=_ref6.data,startTime=_ref6.startTime;bytes=data.buffer,segment.bytes=bytesAsUint8Array=data,trackInfo.hasAudio&&!trackInfo.isMuxed&&timingInfoFn(segment,"audio","start",startTime),trackInfo.hasVideo&&timingInfoFn(segment,"video","start",startTime),tracks.video&&data.byteLength&&segment.transmuxer?workerCallback({action:"pushMp4Captions",endAction:"mp4Captions",transmuxer:segment.transmuxer,data:bytesAsUint8Array,timescales:segment.map.timescales,trackIds:[tracks.video.id],callback:function(message){bytes=message.data.buffer,segment.bytes=bytesAsUint8Array=message.data,message.logs.forEach((function(log){onTransmuxerLog(videojs.mergeOptions(log,{stream:"mp4CaptionParser"}))})),finishLoading(message.captions)}}):finishLoading()}})}else if(segment.transmuxer){if(void 0===segment.container&&(segment.container=detectContainerForBytes(bytesAsUint8Array)),"ts"!==segment.container&&"aac"!==segment.container)return trackInfoFn(segment,{hasAudio:!1,hasVideo:!1}),void doneFn(null,segment,{});transmuxAndNotify({segment:segment,bytes:bytes,trackInfoFn:trackInfoFn,timingInfoFn:timingInfoFn,videoSegmentTimingInfoFn:videoSegmentTimingInfoFn,audioSegmentTimingInfoFn:audioSegmentTimingInfoFn,id3Fn:id3Fn,captionsFn:captionsFn,isEndOfTimeline:isEndOfTimeline,endedTimelineFn:endedTimelineFn,dataFn:dataFn,doneFn:doneFn,onTransmuxerLog:onTransmuxerLog})}else doneFn(null,segment,{})},decrypt=function(_ref7,callback){var keyBytes,id=_ref7.id,key=_ref7.key,encryptedBytes=_ref7.encryptedBytes,decryptionWorker=_ref7.decryptionWorker;decryptionWorker.addEventListener("message",(function decryptionHandler(event){if(event.data.source===id){decryptionWorker.removeEventListener("message",decryptionHandler);var decrypted=event.data.decrypted;callback(new Uint8Array(decrypted.bytes,decrypted.byteOffset,decrypted.byteLength))}})),keyBytes=key.bytes.slice?key.bytes.slice():new Uint32Array(Array.prototype.slice.call(key.bytes)),decryptionWorker.postMessage(createTransferableMessage({source:id,encrypted:encryptedBytes,key:keyBytes,iv:key.iv}),[encryptedBytes.buffer,keyBytes.buffer])},waitForCompletion=function(_ref9){var activeXhrs=_ref9.activeXhrs,decryptionWorker=_ref9.decryptionWorker,trackInfoFn=_ref9.trackInfoFn,timingInfoFn=_ref9.timingInfoFn,videoSegmentTimingInfoFn=_ref9.videoSegmentTimingInfoFn,audioSegmentTimingInfoFn=_ref9.audioSegmentTimingInfoFn,id3Fn=_ref9.id3Fn,captionsFn=_ref9.captionsFn,isEndOfTimeline=_ref9.isEndOfTimeline,endedTimelineFn=_ref9.endedTimelineFn,dataFn=_ref9.dataFn,doneFn=_ref9.doneFn,onTransmuxerLog=_ref9.onTransmuxerLog,count=0,didError=!1;return function(error,segment){if(!didError){if(error)return didError=!0,abortAll(activeXhrs),doneFn(error,segment);if((count+=1)===activeXhrs.length){var segmentFinish=function(){if(segment.encryptedBytes)return function(_ref8){var decryptionWorker=_ref8.decryptionWorker,segment=_ref8.segment,trackInfoFn=_ref8.trackInfoFn,timingInfoFn=_ref8.timingInfoFn,videoSegmentTimingInfoFn=_ref8.videoSegmentTimingInfoFn,audioSegmentTimingInfoFn=_ref8.audioSegmentTimingInfoFn,id3Fn=_ref8.id3Fn,captionsFn=_ref8.captionsFn,isEndOfTimeline=_ref8.isEndOfTimeline,endedTimelineFn=_ref8.endedTimelineFn,dataFn=_ref8.dataFn,doneFn=_ref8.doneFn,onTransmuxerLog=_ref8.onTransmuxerLog;decrypt({id:segment.requestId,key:segment.key,encryptedBytes:segment.encryptedBytes,decryptionWorker:decryptionWorker},(function(decryptedBytes){segment.bytes=decryptedBytes,handleSegmentBytes({segment:segment,bytes:segment.bytes,trackInfoFn:trackInfoFn,timingInfoFn:timingInfoFn,videoSegmentTimingInfoFn:videoSegmentTimingInfoFn,audioSegmentTimingInfoFn:audioSegmentTimingInfoFn,id3Fn:id3Fn,captionsFn:captionsFn,isEndOfTimeline:isEndOfTimeline,endedTimelineFn:endedTimelineFn,dataFn:dataFn,doneFn:doneFn,onTransmuxerLog:onTransmuxerLog})}))}({decryptionWorker:decryptionWorker,segment:segment,trackInfoFn:trackInfoFn,timingInfoFn:timingInfoFn,videoSegmentTimingInfoFn:videoSegmentTimingInfoFn,audioSegmentTimingInfoFn:audioSegmentTimingInfoFn,id3Fn:id3Fn,captionsFn:captionsFn,isEndOfTimeline:isEndOfTimeline,endedTimelineFn:endedTimelineFn,dataFn:dataFn,doneFn:doneFn,onTransmuxerLog:onTransmuxerLog});handleSegmentBytes({segment:segment,bytes:segment.bytes,trackInfoFn:trackInfoFn,timingInfoFn:timingInfoFn,videoSegmentTimingInfoFn:videoSegmentTimingInfoFn,audioSegmentTimingInfoFn:audioSegmentTimingInfoFn,id3Fn:id3Fn,captionsFn:captionsFn,isEndOfTimeline:isEndOfTimeline,endedTimelineFn:endedTimelineFn,dataFn:dataFn,doneFn:doneFn,onTransmuxerLog:onTransmuxerLog})};if(segment.endOfAllRequests=Date.now(),segment.map&&segment.map.encryptedBytes&&!segment.map.bytes)return decrypt({decryptionWorker:decryptionWorker,id:segment.requestId+"-init",encryptedBytes:segment.map.encryptedBytes,key:segment.map.key},(function(decryptedBytes){segment.map.bytes=decryptedBytes,parseInitSegment(segment,(function(parseError){if(parseError)return abortAll(activeXhrs),doneFn(parseError,segment);segmentFinish()}))}));segmentFinish()}}}},handleProgress=function(_ref11){var segment=_ref11.segment,progressFn=_ref11.progressFn;return _ref11.trackInfoFn,_ref11.timingInfoFn,_ref11.videoSegmentTimingInfoFn,_ref11.audioSegmentTimingInfoFn,_ref11.id3Fn,_ref11.captionsFn,_ref11.isEndOfTimeline,_ref11.endedTimelineFn,_ref11.dataFn,function(event){if(!event.target.aborted)return segment.stats=videojs.mergeOptions(segment.stats,function(progressEvent){var request=progressEvent.target,stats={bandwidth:1/0,bytesReceived:0,roundTripTime:Date.now()-request.requestTime||0};return stats.bytesReceived=progressEvent.loaded,stats.bandwidth=Math.floor(stats.bytesReceived/stats.roundTripTime*8*1e3),stats}(event)),!segment.stats.firstBytesReceivedAt&&segment.stats.bytesReceived&&(segment.stats.firstBytesReceivedAt=Date.now()),progressFn(event,segment)}},mediaSegmentRequest=function(_ref12){var xhr=_ref12.xhr,xhrOptions=_ref12.xhrOptions,decryptionWorker=_ref12.decryptionWorker,segment=_ref12.segment,abortFn=_ref12.abortFn,progressFn=_ref12.progressFn,trackInfoFn=_ref12.trackInfoFn,timingInfoFn=_ref12.timingInfoFn,videoSegmentTimingInfoFn=_ref12.videoSegmentTimingInfoFn,audioSegmentTimingInfoFn=_ref12.audioSegmentTimingInfoFn,id3Fn=_ref12.id3Fn,captionsFn=_ref12.captionsFn,isEndOfTimeline=_ref12.isEndOfTimeline,endedTimelineFn=_ref12.endedTimelineFn,dataFn=_ref12.dataFn,doneFn=_ref12.doneFn,onTransmuxerLog=_ref12.onTransmuxerLog,activeXhrs=[],finishProcessingFn=waitForCompletion({activeXhrs:activeXhrs,decryptionWorker:decryptionWorker,trackInfoFn:trackInfoFn,timingInfoFn:timingInfoFn,videoSegmentTimingInfoFn:videoSegmentTimingInfoFn,audioSegmentTimingInfoFn:audioSegmentTimingInfoFn,id3Fn:id3Fn,captionsFn:captionsFn,isEndOfTimeline:isEndOfTimeline,endedTimelineFn:endedTimelineFn,dataFn:dataFn,doneFn:doneFn,onTransmuxerLog:onTransmuxerLog});if(segment.key&&!segment.key.bytes){var objects=[segment.key];segment.map&&!segment.map.bytes&&segment.map.key&&segment.map.key.resolvedUri===segment.key.resolvedUri&&objects.push(segment.map.key);var keyXhr=xhr(videojs.mergeOptions(xhrOptions,{uri:segment.key.resolvedUri,responseType:"arraybuffer"}),handleKeyResponse(segment,objects,finishProcessingFn));activeXhrs.push(keyXhr)}if(segment.map&&!segment.map.bytes){if(segment.map.key&&(!segment.key||segment.key.resolvedUri!==segment.map.key.resolvedUri)){var mapKeyXhr=xhr(videojs.mergeOptions(xhrOptions,{uri:segment.map.key.resolvedUri,responseType:"arraybuffer"}),handleKeyResponse(segment,[segment.map.key],finishProcessingFn));activeXhrs.push(mapKeyXhr)}var initSegmentOptions=videojs.mergeOptions(xhrOptions,{uri:segment.map.resolvedUri,responseType:"arraybuffer",headers:segmentXhrHeaders(segment.map)}),initSegmentRequestCallback=function(_ref2){var segment=_ref2.segment,finishProcessingFn=_ref2.finishProcessingFn;return function(error,request){var errorObj=handleErrors(error,request);if(errorObj)return finishProcessingFn(errorObj,segment);var bytes=new Uint8Array(request.response);if(segment.map.key)return segment.map.encryptedBytes=bytes,finishProcessingFn(null,segment);segment.map.bytes=bytes,parseInitSegment(segment,(function(parseError){if(parseError)return parseError.xhr=request,parseError.status=request.status,finishProcessingFn(parseError,segment);finishProcessingFn(null,segment)}))}}({segment:segment,finishProcessingFn:finishProcessingFn}),initSegmentXhr=xhr(initSegmentOptions,initSegmentRequestCallback);activeXhrs.push(initSegmentXhr)}var segmentRequestOptions=videojs.mergeOptions(xhrOptions,{uri:segment.part&&segment.part.resolvedUri||segment.resolvedUri,responseType:"arraybuffer",headers:segmentXhrHeaders(segment)}),segmentXhr=xhr(segmentRequestOptions,handleSegmentResponse({segment:segment,finishProcessingFn:finishProcessingFn,responseType:segmentRequestOptions.responseType}));segmentXhr.addEventListener("progress",handleProgress({segment:segment,progressFn:progressFn,trackInfoFn:trackInfoFn,timingInfoFn:timingInfoFn,videoSegmentTimingInfoFn:videoSegmentTimingInfoFn,audioSegmentTimingInfoFn:audioSegmentTimingInfoFn,id3Fn:id3Fn,captionsFn:captionsFn,isEndOfTimeline:isEndOfTimeline,endedTimelineFn:endedTimelineFn,dataFn:dataFn})),activeXhrs.push(segmentXhr);var loadendState={};return activeXhrs.forEach((function(activeXhr){activeXhr.addEventListener("loadend",function(_ref10){var loadendState=_ref10.loadendState,abortFn=_ref10.abortFn;return function(event){event.target.aborted&&abortFn&&!loadendState.calledAbortFn&&(abortFn(),loadendState.calledAbortFn=!0)}}({loadendState:loadendState,abortFn:abortFn}))})),function(){return abortAll(activeXhrs)}},logFn$1=logger("CodecUtils"),isMaat=function(master,media){var mediaAttributes=media.attributes||{};return master&&master.mediaGroups&&master.mediaGroups.AUDIO&&mediaAttributes.AUDIO&&master.mediaGroups.AUDIO[mediaAttributes.AUDIO]},unwrapCodecList=function(codecList){var codecs={};return codecList.forEach((function(_ref){var mediaType=_ref.mediaType,type=_ref.type,details=_ref.details;codecs[mediaType]=codecs[mediaType]||[],codecs[mediaType].push(translateLegacyCodec(""+type+details))})),Object.keys(codecs).forEach((function(mediaType){if(codecs[mediaType].length>1)return logFn$1("multiple "+mediaType+" codecs found as attributes: "+codecs[mediaType].join(", ")+". Setting playlist codecs to null so that we wait for mux.js to probe segments for real codecs."),void(codecs[mediaType]=null);codecs[mediaType]=codecs[mediaType][0]})),codecs},codecCount=function(codecObj){var count=0;return codecObj.audio&&count++,codecObj.video&&count++,count},codecsForPlaylist=function(master,media){var mediaAttributes=media.attributes||{},codecInfo=unwrapCodecList(function(media){var mediaAttributes=media.attributes||{};if(mediaAttributes.CODECS)return parseCodecs(mediaAttributes.CODECS)}(media)||[]);if(isMaat(master,media)&&!codecInfo.audio&&!function(master,media){if(!isMaat(master,media))return!0;var mediaAttributes=media.attributes||{},audioGroup=master.mediaGroups.AUDIO[mediaAttributes.AUDIO];for(var groupId in audioGroup)if(!audioGroup[groupId].uri&&!audioGroup[groupId].playlists)return!0;return!1}(master,media)){var defaultCodecs=unwrapCodecList(function(master,audioGroupId){if(!master.mediaGroups.AUDIO||!audioGroupId)return null;var audioGroup=master.mediaGroups.AUDIO[audioGroupId];if(!audioGroup)return null;for(var name in audioGroup){var audioType=audioGroup[name];if(audioType.default&&audioType.playlists)return parseCodecs(audioType.playlists[0].attributes.CODECS)}return null}(master,mediaAttributes.AUDIO)||[]);defaultCodecs.audio&&(codecInfo.audio=defaultCodecs.audio)}return codecInfo},logFn=logger("PlaylistSelector"),representationToString=function(representation){if(representation&&representation.playlist){var playlist=representation.playlist;return JSON.stringify({id:playlist.id,bandwidth:representation.bandwidth,width:representation.width,height:representation.height,codecs:playlist.attributes&&playlist.attributes.CODECS||""})}},safeGetComputedStyle=function(el,property){if(!el)return"";var result=window.getComputedStyle(el);return result?result[property]:""},stableSort=function(array,sortFn){var newArray=array.slice();array.sort((function(left,right){var cmp=sortFn(left,right);return 0===cmp?newArray.indexOf(left)-newArray.indexOf(right):cmp}))},comparePlaylistBandwidth=function(left,right){var leftBandwidth,rightBandwidth;return left.attributes.BANDWIDTH&&(leftBandwidth=left.attributes.BANDWIDTH),leftBandwidth=leftBandwidth||window.Number.MAX_VALUE,right.attributes.BANDWIDTH&&(rightBandwidth=right.attributes.BANDWIDTH),leftBandwidth-(rightBandwidth=rightBandwidth||window.Number.MAX_VALUE)},simpleSelector=function(master,playerBandwidth,playerWidth,playerHeight,limitRenditionByPlayerDimensions,masterPlaylistController){if(master){var options={bandwidth:playerBandwidth,width:playerWidth,height:playerHeight,limitRenditionByPlayerDimensions:limitRenditionByPlayerDimensions},playlists=master.playlists;Playlist.isAudioOnly(master)&&(playlists=masterPlaylistController.getAudioTrackPlaylists_(),options.audioOnly=!0);var sortedPlaylistReps=playlists.map((function(playlist){var width=playlist.attributes&&playlist.attributes.RESOLUTION&&playlist.attributes.RESOLUTION.width,height=playlist.attributes&&playlist.attributes.RESOLUTION&&playlist.attributes.RESOLUTION.height;return{bandwidth:playlist.attributes&&playlist.attributes.BANDWIDTH||window.Number.MAX_VALUE,width:width,height:height,playlist:playlist}}));stableSort(sortedPlaylistReps,(function(left,right){return left.bandwidth-right.bandwidth}));var enabledPlaylistReps=(sortedPlaylistReps=sortedPlaylistReps.filter((function(rep){return!Playlist.isIncompatible(rep.playlist)}))).filter((function(rep){return Playlist.isEnabled(rep.playlist)}));enabledPlaylistReps.length||(enabledPlaylistReps=sortedPlaylistReps.filter((function(rep){return!Playlist.isDisabled(rep.playlist)})));var bandwidthPlaylistReps=enabledPlaylistReps.filter((function(rep){return rep.bandwidth*Config.BANDWIDTH_VARIANCE<playerBandwidth})),highestRemainingBandwidthRep=bandwidthPlaylistReps[bandwidthPlaylistReps.length-1],bandwidthBestRep=bandwidthPlaylistReps.filter((function(rep){return rep.bandwidth===highestRemainingBandwidthRep.bandwidth}))[0];if(!1===limitRenditionByPlayerDimensions){var _chosenRep=bandwidthBestRep||enabledPlaylistReps[0]||sortedPlaylistReps[0];if(_chosenRep&&_chosenRep.playlist){var type="sortedPlaylistReps";return bandwidthBestRep&&(type="bandwidthBestRep"),enabledPlaylistReps[0]&&(type="enabledPlaylistReps"),logFn("choosing "+representationToString(_chosenRep)+" using "+type+" with options",options),_chosenRep.playlist}return logFn("could not choose a playlist with options",options),null}var haveResolution=bandwidthPlaylistReps.filter((function(rep){return rep.width&&rep.height}));stableSort(haveResolution,(function(left,right){return left.width-right.width}));var resolutionBestRepList=haveResolution.filter((function(rep){return rep.width===playerWidth&&rep.height===playerHeight}));highestRemainingBandwidthRep=resolutionBestRepList[resolutionBestRepList.length-1];var resolutionPlusOneList,resolutionPlusOneSmallest,resolutionPlusOneRep,leastPixelDiffRep,resolutionBestRep=resolutionBestRepList.filter((function(rep){return rep.bandwidth===highestRemainingBandwidthRep.bandwidth}))[0];if(resolutionBestRep||(resolutionPlusOneSmallest=(resolutionPlusOneList=haveResolution.filter((function(rep){return rep.width>playerWidth||rep.height>playerHeight}))).filter((function(rep){return rep.width===resolutionPlusOneList[0].width&&rep.height===resolutionPlusOneList[0].height})),highestRemainingBandwidthRep=resolutionPlusOneSmallest[resolutionPlusOneSmallest.length-1],resolutionPlusOneRep=resolutionPlusOneSmallest.filter((function(rep){return rep.bandwidth===highestRemainingBandwidthRep.bandwidth}))[0]),masterPlaylistController.experimentalLeastPixelDiffSelector){var leastPixelDiffList=haveResolution.map((function(rep){return rep.pixelDiff=Math.abs(rep.width-playerWidth)+Math.abs(rep.height-playerHeight),rep}));stableSort(leastPixelDiffList,(function(left,right){return left.pixelDiff===right.pixelDiff?right.bandwidth-left.bandwidth:left.pixelDiff-right.pixelDiff})),leastPixelDiffRep=leastPixelDiffList[0]}var chosenRep=leastPixelDiffRep||resolutionPlusOneRep||resolutionBestRep||bandwidthBestRep||enabledPlaylistReps[0]||sortedPlaylistReps[0];if(chosenRep&&chosenRep.playlist){var _type="sortedPlaylistReps";return leastPixelDiffRep?_type="leastPixelDiffRep":resolutionPlusOneRep?_type="resolutionPlusOneRep":resolutionBestRep?_type="resolutionBestRep":bandwidthBestRep?_type="bandwidthBestRep":enabledPlaylistReps[0]&&(_type="enabledPlaylistReps"),logFn("choosing "+representationToString(chosenRep)+" using "+_type+" with options",options),chosenRep.playlist}return logFn("could not choose a playlist with options",options),null}},lastBandwidthSelector=function(){var pixelRatio=this.useDevicePixelRatio&&window.devicePixelRatio||1;return simpleSelector(this.playlists.master,this.systemBandwidth,parseInt(safeGetComputedStyle(this.tech_.el(),"width"),10)*pixelRatio,parseInt(safeGetComputedStyle(this.tech_.el(),"height"),10)*pixelRatio,this.limitRenditionByPlayerDimensions,this.masterPlaylistController_)},addMetadata=function(_ref2){var inbandTextTracks=_ref2.inbandTextTracks,metadataArray=_ref2.metadataArray,timestampOffset=_ref2.timestampOffset,videoDuration=_ref2.videoDuration;if(metadataArray){var Cue=window.WebKitDataCue||window.VTTCue,metadataTrack=inbandTextTracks.metadataTrack_;if(metadataTrack&&(metadataArray.forEach((function(metadata){var time=metadata.cueTime+timestampOffset;!("number"!=typeof time||window.isNaN(time)||time<0)&&time<1/0&&metadata.frames.forEach((function(frame){var cue=new Cue(time,time,frame.value||frame.url||frame.data||"");cue.frame=frame,cue.value=frame,function(cue){Object.defineProperties(cue.frame,{id:{get:function(){return videojs.log.warn("cue.frame.id is deprecated. Use cue.value.key instead."),cue.value.key}},value:{get:function(){return videojs.log.warn("cue.frame.value is deprecated. Use cue.value.data instead."),cue.value.data}},privateData:{get:function(){return videojs.log.warn("cue.frame.privateData is deprecated. Use cue.value.data instead."),cue.value.data}}})}(cue),metadataTrack.addCue(cue)}))})),metadataTrack.cues&&metadataTrack.cues.length)){for(var cues=metadataTrack.cues,cuesArray=[],i=0;i<cues.length;i++)cues[i]&&cuesArray.push(cues[i]);var cuesGroupedByStartTime=cuesArray.reduce((function(obj,cue){var timeSlot=obj[cue.startTime]||[];return timeSlot.push(cue),obj[cue.startTime]=timeSlot,obj}),{}),sortedStartTimes=Object.keys(cuesGroupedByStartTime).sort((function(a,b){return Number(a)-Number(b)}));sortedStartTimes.forEach((function(startTime,idx){var cueGroup=cuesGroupedByStartTime[startTime],nextTime=Number(sortedStartTimes[idx+1])||videoDuration;cueGroup.forEach((function(cue){cue.endTime=nextTime}))}))}}},removeCuesFromTrack=function(start,end,track){var i,cue;if(track&&track.cues)for(i=track.cues.length;i--;)(cue=track.cues[i]).startTime>=start&&cue.endTime<=end&&track.removeCue(cue)},finite=function(num){return"number"==typeof num&&isFinite(num)},segmentInfoString=function(segmentInfo){var startOfSegment=segmentInfo.startOfSegment,duration=segmentInfo.duration,segment=segmentInfo.segment,part=segmentInfo.part,_segmentInfo$playlist=segmentInfo.playlist,seq=_segmentInfo$playlist.mediaSequence,id=_segmentInfo$playlist.id,_segmentInfo$playlist2=_segmentInfo$playlist.segments,segments=void 0===_segmentInfo$playlist2?[]:_segmentInfo$playlist2,index=segmentInfo.mediaIndex,partIndex=segmentInfo.partIndex,timeline=segmentInfo.timeline,segmentLen=segments.length-1,selection="mediaIndex/partIndex increment";segmentInfo.getMediaInfoForTime?selection="getMediaInfoForTime ("+segmentInfo.getMediaInfoForTime+")":segmentInfo.isSyncRequest&&(selection="getSyncSegmentCandidate (isSyncRequest)"),segmentInfo.independent&&(selection+=" with independent "+segmentInfo.independent);var hasPartIndex="number"==typeof partIndex,name=segmentInfo.segment.uri?"segment":"pre-segment",zeroBasedPartCount=hasPartIndex?getKnownPartCount({preloadSegment:segment})-1:0;return name+" ["+(seq+index)+"/"+(seq+segmentLen)+"]"+(hasPartIndex?" part ["+partIndex+"/"+zeroBasedPartCount+"]":"")+" segment start/end ["+segment.start+" => "+segment.end+"]"+(hasPartIndex?" part start/end ["+part.start+" => "+part.end+"]":"")+" startOfSegment ["+startOfSegment+"] duration ["+duration+"] timeline ["+timeline+"] selected by ["+selection+"] playlist ["+id+"]"},timingInfoPropertyForMedia=function(mediaType){return mediaType+"TimingInfo"},shouldWaitForTimelineChange=function(_ref2){var timelineChangeController=_ref2.timelineChangeController,currentTimeline=_ref2.currentTimeline,segmentTimeline=_ref2.segmentTimeline,loaderType=_ref2.loaderType,audioDisabled=_ref2.audioDisabled;if(currentTimeline===segmentTimeline)return!1;if("audio"===loaderType){var lastMainTimelineChange=timelineChangeController.lastTimelineChange({type:"main"});return!lastMainTimelineChange||lastMainTimelineChange.to!==segmentTimeline}if("main"===loaderType&&audioDisabled){var pendingAudioTimelineChange=timelineChangeController.pendingTimelineChange({type:"audio"});return!pendingAudioTimelineChange||pendingAudioTimelineChange.to!==segmentTimeline}return!1},segmentTooLong=function(_ref3){var segmentDuration=_ref3.segmentDuration,maxDuration=_ref3.maxDuration;return!!segmentDuration&&Math.round(segmentDuration)>maxDuration+.03333333333333333},getTroublesomeSegmentDurationMessage=function(segmentInfo,sourceType){if("hls"!==sourceType)return null;var timingInfos,maxDuration,segmentDuration=(timingInfos={audioTimingInfo:segmentInfo.audioTimingInfo,videoTimingInfo:segmentInfo.videoTimingInfo},maxDuration=0,["video","audio"].forEach((function(type){var typeTimingInfo=timingInfos[type+"TimingInfo"];if(typeTimingInfo){var duration,start=typeTimingInfo.start,end=typeTimingInfo.end;"bigint"==typeof start||"bigint"==typeof end?duration=window.BigInt(end)-window.BigInt(start):"number"==typeof start&&"number"==typeof end&&(duration=end-start),void 0!==duration&&duration>maxDuration&&(maxDuration=duration)}})),"bigint"==typeof maxDuration&&maxDuration<Number.MAX_SAFE_INTEGER&&(maxDuration=Number(maxDuration)),maxDuration);if(!segmentDuration)return null;var targetDuration=segmentInfo.playlist.targetDuration,isSegmentWayTooLong=segmentTooLong({segmentDuration:segmentDuration,maxDuration:2*targetDuration}),isSegmentSlightlyTooLong=segmentTooLong({segmentDuration:segmentDuration,maxDuration:targetDuration}),segmentTooLongMessage="Segment with index "+segmentInfo.mediaIndex+" from playlist "+segmentInfo.playlist.id+" has a duration of "+segmentDuration+" when the reported duration is "+segmentInfo.duration+" and the target duration is "+targetDuration+". For HLS content, a duration in excess of the target duration may result in playback issues. See the HLS specification section on EXT-X-TARGETDURATION for more details: https://tools.ietf.org/html/draft-pantos-http-live-streaming-23#section-4.3.3.1";return isSegmentWayTooLong||isSegmentSlightlyTooLong?{severity:isSegmentWayTooLong?"warn":"info",message:segmentTooLongMessage}:null},SegmentLoader=function(_videojs$EventTarget){function SegmentLoader(settings,options){var _this;if(_this=_videojs$EventTarget.call(this)||this,!settings)throw new TypeError("Initialization settings are required");if("function"!=typeof settings.currentTime)throw new TypeError("No currentTime getter specified");if(!settings.mediaSource)throw new TypeError("No MediaSource specified");return _this.bandwidth=settings.bandwidth,_this.throughput={rate:0,count:0},_this.roundTrip=NaN,_this.resetStats_(),_this.mediaIndex=null,_this.partIndex=null,_this.hasPlayed_=settings.hasPlayed,_this.currentTime_=settings.currentTime,_this.seekable_=settings.seekable,_this.seeking_=settings.seeking,_this.duration_=settings.duration,_this.mediaSource_=settings.mediaSource,_this.vhs_=settings.vhs,_this.loaderType_=settings.loaderType,_this.currentMediaInfo_=void 0,_this.startingMediaInfo_=void 0,_this.segmentMetadataTrack_=settings.segmentMetadataTrack,_this.goalBufferLength_=settings.goalBufferLength,_this.sourceType_=settings.sourceType,_this.sourceUpdater_=settings.sourceUpdater,_this.inbandTextTracks_=settings.inbandTextTracks,_this.state_="INIT",_this.timelineChangeController_=settings.timelineChangeController,_this.shouldSaveSegmentTimingInfo_=!0,_this.parse708captions_=settings.parse708captions,_this.useDtsForTimestampOffset_=settings.useDtsForTimestampOffset,_this.captionServices_=settings.captionServices,_this.experimentalExactManifestTimings=settings.experimentalExactManifestTimings,_this.checkBufferTimeout_=null,_this.error_=void 0,_this.currentTimeline_=-1,_this.pendingSegment_=null,_this.xhrOptions_=null,_this.pendingSegments_=[],_this.audioDisabled_=!1,_this.isPendingTimestampOffset_=!1,_this.gopBuffer_=[],_this.timeMapping_=0,_this.safeAppend_=videojs.browser.IE_VERSION>=11,_this.appendInitSegment_={audio:!0,video:!0},_this.playlistOfLastInitSegment_={audio:null,video:null},_this.callQueue_=[],_this.loadQueue_=[],_this.metadataQueue_={id3:[],caption:[]},_this.waitingOnRemove_=!1,_this.quotaExceededErrorRetryTimeout_=null,_this.activeInitSegmentId_=null,_this.initSegments_={},_this.cacheEncryptionKeys_=settings.cacheEncryptionKeys,_this.keyCache_={},_this.decrypter_=settings.decrypter,_this.syncController_=settings.syncController,_this.syncPoint_={segmentIndex:0,time:0},_this.transmuxer_=_this.createTransmuxer_(),_this.triggerSyncInfoUpdate_=function(){return _this.trigger("syncinfoupdate")},_this.syncController_.on("syncinfoupdate",_this.triggerSyncInfoUpdate_),_this.mediaSource_.addEventListener("sourceopen",(function(){_this.isEndOfStream_()||(_this.ended_=!1)})),_this.fetchAtBuffer_=!1,_this.logger_=logger("SegmentLoader["+_this.loaderType_+"]"),Object.defineProperty(assertThisInitialized(_this),"state",{get:function(){return this.state_},set:function(newState){newState!==this.state_&&(this.logger_(this.state_+" -> "+newState),this.state_=newState,this.trigger("statechange"))}}),_this.sourceUpdater_.on("ready",(function(){_this.hasEnoughInfoToAppend_()&&_this.processCallQueue_()})),"main"===_this.loaderType_&&_this.timelineChangeController_.on("pendingtimelinechange",(function(){_this.hasEnoughInfoToAppend_()&&_this.processCallQueue_()})),"audio"===_this.loaderType_&&_this.timelineChangeController_.on("timelinechange",(function(){_this.hasEnoughInfoToLoad_()&&_this.processLoadQueue_(),_this.hasEnoughInfoToAppend_()&&_this.processCallQueue_()})),_this}inheritsLoose(SegmentLoader,_videojs$EventTarget);var _proto=SegmentLoader.prototype;return _proto.createTransmuxer_=function(){return segmentTransmuxer_createTransmuxer({remux:!1,alignGopsAtEnd:this.safeAppend_,keepOriginalTimestamps:!0,parse708captions:this.parse708captions_,captionServices:this.captionServices_})},_proto.resetStats_=function(){this.mediaBytesTransferred=0,this.mediaRequests=0,this.mediaRequestsAborted=0,this.mediaRequestsTimedout=0,this.mediaRequestsErrored=0,this.mediaTransferDuration=0,this.mediaSecondsLoaded=0,this.mediaAppends=0},_proto.dispose=function(){this.trigger("dispose"),this.state="DISPOSED",this.pause(),this.abort_(),this.transmuxer_&&this.transmuxer_.terminate(),this.resetStats_(),this.checkBufferTimeout_&&window.clearTimeout(this.checkBufferTimeout_),this.syncController_&&this.triggerSyncInfoUpdate_&&this.syncController_.off("syncinfoupdate",this.triggerSyncInfoUpdate_),this.off()},_proto.setAudio=function(enable){this.audioDisabled_=!enable,enable?this.appendInitSegment_.audio=!0:this.sourceUpdater_.removeAudio(0,this.duration_())},_proto.abort=function(){"WAITING"===this.state?(this.abort_(),this.state="READY",this.paused()||this.monitorBuffer_()):this.pendingSegment_&&(this.pendingSegment_=null)},_proto.abort_=function(){this.pendingSegment_&&this.pendingSegment_.abortRequests&&this.pendingSegment_.abortRequests(),this.pendingSegment_=null,this.callQueue_=[],this.loadQueue_=[],this.metadataQueue_.id3=[],this.metadataQueue_.caption=[],this.timelineChangeController_.clearPendingTimelineChange(this.loaderType_),this.waitingOnRemove_=!1,window.clearTimeout(this.quotaExceededErrorRetryTimeout_),this.quotaExceededErrorRetryTimeout_=null},_proto.checkForAbort_=function(requestId){return"APPENDING"!==this.state||this.pendingSegment_?!this.pendingSegment_||this.pendingSegment_.requestId!==requestId:(this.state="READY",!0)},_proto.error=function(_error){return void 0!==_error&&(this.logger_("error occurred:",_error),this.error_=_error),this.pendingSegment_=null,this.error_},_proto.endOfStream=function(){this.ended_=!0,this.transmuxer_&&segmentTransmuxer_reset(this.transmuxer_),this.gopBuffer_.length=0,this.pause(),this.trigger("ended")},_proto.buffered_=function(){var trackInfo=this.getMediaInfo_();if(!this.sourceUpdater_||!trackInfo)return videojs.createTimeRanges();if("main"===this.loaderType_){var hasAudio=trackInfo.hasAudio,hasVideo=trackInfo.hasVideo,isMuxed=trackInfo.isMuxed;if(hasVideo&&hasAudio&&!this.audioDisabled_&&!isMuxed)return this.sourceUpdater_.buffered();if(hasVideo)return this.sourceUpdater_.videoBuffered()}return this.sourceUpdater_.audioBuffered()},_proto.initSegmentForMap=function(map,set){if(void 0===set&&(set=!1),!map)return null;var id=initSegmentId(map),storedMap=this.initSegments_[id];return set&&!storedMap&&map.bytes&&(this.initSegments_[id]=storedMap={resolvedUri:map.resolvedUri,byterange:map.byterange,bytes:map.bytes,tracks:map.tracks,timescales:map.timescales}),storedMap||map},_proto.segmentKey=function(key,set){if(void 0===set&&(set=!1),!key)return null;var id=segmentKeyId(key),storedKey=this.keyCache_[id];this.cacheEncryptionKeys_&&set&&!storedKey&&key.bytes&&(this.keyCache_[id]=storedKey={resolvedUri:key.resolvedUri,bytes:key.bytes});var result={resolvedUri:(storedKey||key).resolvedUri};return storedKey&&(result.bytes=storedKey.bytes),result},_proto.couldBeginLoading_=function(){return this.playlist_&&!this.paused()},_proto.load=function(){if(this.monitorBuffer_(),this.playlist_)return"INIT"===this.state&&this.couldBeginLoading_()?this.init_():void(!this.couldBeginLoading_()||"READY"!==this.state&&"INIT"!==this.state||(this.state="READY"))},_proto.init_=function(){return this.state="READY",this.resetEverything(),this.monitorBuffer_()},_proto.playlist=function(newPlaylist,options){if(void 0===options&&(options={}),newPlaylist){var oldPlaylist=this.playlist_,segmentInfo=this.pendingSegment_;this.playlist_=newPlaylist,this.xhrOptions_=options,"INIT"===this.state&&(newPlaylist.syncInfo={mediaSequence:newPlaylist.mediaSequence,time:0},"main"===this.loaderType_&&this.syncController_.setDateTimeMappingForStart(newPlaylist));var oldId=null;if(oldPlaylist&&(oldPlaylist.id?oldId=oldPlaylist.id:oldPlaylist.uri&&(oldId=oldPlaylist.uri)),this.logger_("playlist update ["+oldId+" => "+(newPlaylist.id||newPlaylist.uri)+"]"),this.trigger("syncinfoupdate"),"INIT"===this.state&&this.couldBeginLoading_())return this.init_();if(!oldPlaylist||oldPlaylist.uri!==newPlaylist.uri)return null!==this.mediaIndex&&(newPlaylist.endList?this.resyncLoader():this.resetLoader()),this.currentMediaInfo_=void 0,void this.trigger("playlistupdate");var mediaSequenceDiff=newPlaylist.mediaSequence-oldPlaylist.mediaSequence;if(this.logger_("live window shift ["+mediaSequenceDiff+"]"),null!==this.mediaIndex)if(this.mediaIndex-=mediaSequenceDiff,this.mediaIndex<0)this.mediaIndex=null,this.partIndex=null;else{var segment=this.playlist_.segments[this.mediaIndex];if(this.partIndex&&(!segment.parts||!segment.parts.length||!segment.parts[this.partIndex])){var mediaIndex=this.mediaIndex;this.logger_("currently processing part (index "+this.partIndex+") no longer exists."),this.resetLoader(),this.mediaIndex=mediaIndex}}segmentInfo&&(segmentInfo.mediaIndex-=mediaSequenceDiff,segmentInfo.mediaIndex<0?(segmentInfo.mediaIndex=null,segmentInfo.partIndex=null):(segmentInfo.mediaIndex>=0&&(segmentInfo.segment=newPlaylist.segments[segmentInfo.mediaIndex]),segmentInfo.partIndex>=0&&segmentInfo.segment.parts&&(segmentInfo.part=segmentInfo.segment.parts[segmentInfo.partIndex]))),this.syncController_.saveExpiredSegmentInfo(oldPlaylist,newPlaylist)}},_proto.pause=function(){this.checkBufferTimeout_&&(window.clearTimeout(this.checkBufferTimeout_),this.checkBufferTimeout_=null)},_proto.paused=function(){return null===this.checkBufferTimeout_},_proto.resetEverything=function(done){this.ended_=!1,this.appendInitSegment_={audio:!0,video:!0},this.resetLoader(),this.remove(0,1/0,done),this.transmuxer_&&(this.transmuxer_.postMessage({action:"clearAllMp4Captions"}),this.transmuxer_.postMessage({action:"reset"}))},_proto.resetLoader=function(){this.fetchAtBuffer_=!1,this.resyncLoader()},_proto.resyncLoader=function(){this.transmuxer_&&segmentTransmuxer_reset(this.transmuxer_),this.mediaIndex=null,this.partIndex=null,this.syncPoint_=null,this.isPendingTimestampOffset_=!1,this.callQueue_=[],this.loadQueue_=[],this.metadataQueue_.id3=[],this.metadataQueue_.caption=[],this.abort(),this.transmuxer_&&this.transmuxer_.postMessage({action:"clearParsedMp4Captions"})},_proto.remove=function(start,end,done,force){if(void 0===done&&(done=function(){}),void 0===force&&(force=!1),end===1/0&&(end=this.duration_()),end<=start)this.logger_("skipping remove because end ${end} is <= start ${start}");else if(this.sourceUpdater_&&this.getMediaInfo_()){var removesRemaining=1,removeFinished=function(){0===--removesRemaining&&done()};for(var track in!force&&this.audioDisabled_||(removesRemaining++,this.sourceUpdater_.removeAudio(start,end,removeFinished)),(force||"main"===this.loaderType_)&&(this.gopBuffer_=function(buffer,start,end,mapping){for(var startPts=Math.ceil((start-mapping)*clock_1),endPts=Math.ceil((end-mapping)*clock_1),updatedBuffer=buffer.slice(),i=buffer.length;i--&&!(buffer[i].pts<=endPts););if(-1===i)return updatedBuffer;for(var j=i+1;j--&&!(buffer[j].pts<=startPts););return j=Math.max(j,0),updatedBuffer.splice(j,i-j+1),updatedBuffer}(this.gopBuffer_,start,end,this.timeMapping_),removesRemaining++,this.sourceUpdater_.removeVideo(start,end,removeFinished)),this.inbandTextTracks_)removeCuesFromTrack(start,end,this.inbandTextTracks_[track]);removeCuesFromTrack(start,end,this.segmentMetadataTrack_),removeFinished()}else this.logger_("skipping remove because no source updater or starting media info")},_proto.monitorBuffer_=function(){this.checkBufferTimeout_&&window.clearTimeout(this.checkBufferTimeout_),this.checkBufferTimeout_=window.setTimeout(this.monitorBufferTick_.bind(this),1)},_proto.monitorBufferTick_=function(){"READY"===this.state&&this.fillBuffer_(),this.checkBufferTimeout_&&window.clearTimeout(this.checkBufferTimeout_),this.checkBufferTimeout_=window.setTimeout(this.monitorBufferTick_.bind(this),500)},_proto.fillBuffer_=function(){if(!this.sourceUpdater_.updating()){var segmentInfo=this.chooseNextRequest_();segmentInfo&&("number"==typeof segmentInfo.timestampOffset&&(this.isPendingTimestampOffset_=!1,this.timelineChangeController_.pendingTimelineChange({type:this.loaderType_,from:this.currentTimeline_,to:segmentInfo.timeline})),this.loadSegment_(segmentInfo))}},_proto.isEndOfStream_=function(mediaIndex,playlist,partIndex){if(void 0===mediaIndex&&(mediaIndex=this.mediaIndex),void 0===playlist&&(playlist=this.playlist_),void 0===partIndex&&(partIndex=this.partIndex),!playlist||!this.mediaSource_)return!1;var segment="number"==typeof mediaIndex&&playlist.segments[mediaIndex],appendedLastSegment=mediaIndex+1===playlist.segments.length,appendedLastPart=!segment||!segment.parts||partIndex+1===segment.parts.length;return playlist.endList&&"open"===this.mediaSource_.readyState&&appendedLastSegment&&appendedLastPart},_proto.chooseNextRequest_=function(){var buffered=this.buffered_(),bufferedEnd=lastBufferedEnd(buffered)||0,bufferedTime=timeAheadOf(buffered,this.currentTime_()),preloaded=!this.hasPlayed_()&&bufferedTime>=1,haveEnoughBuffer=bufferedTime>=this.goalBufferLength_(),segments=this.playlist_.segments;if(!segments.length||preloaded||haveEnoughBuffer)return null;this.syncPoint_=this.syncPoint_||this.syncController_.getSyncPoint(this.playlist_,this.duration_(),this.currentTimeline_,this.currentTime_());var next={partIndex:null,mediaIndex:null,startOfSegment:null,playlist:this.playlist_,isSyncRequest:Boolean(!this.syncPoint_)};if(next.isSyncRequest)next.mediaIndex=function(currentTimeline,segments,targetTime){segments=segments||[];for(var timelineSegments=[],time=0,i=0;i<segments.length;i++){var segment=segments[i];if(currentTimeline===segment.timeline&&(timelineSegments.push(i),(time+=segment.duration)>targetTime))return i}return 0===timelineSegments.length?0:timelineSegments[timelineSegments.length-1]}(this.currentTimeline_,segments,bufferedEnd);else if(null!==this.mediaIndex){var segment=segments[this.mediaIndex],partIndex="number"==typeof this.partIndex?this.partIndex:-1;next.startOfSegment=segment.end?segment.end:bufferedEnd,segment.parts&&segment.parts[partIndex+1]?(next.mediaIndex=this.mediaIndex,next.partIndex=partIndex+1):next.mediaIndex=this.mediaIndex+1}else{var _Playlist$getMediaInf=Playlist.getMediaInfoForTime({experimentalExactManifestTimings:this.experimentalExactManifestTimings,playlist:this.playlist_,currentTime:this.fetchAtBuffer_?bufferedEnd:this.currentTime_(),startingPartIndex:this.syncPoint_.partIndex,startingSegmentIndex:this.syncPoint_.segmentIndex,startTime:this.syncPoint_.time}),segmentIndex=_Playlist$getMediaInf.segmentIndex,startTime=_Playlist$getMediaInf.startTime,_partIndex=_Playlist$getMediaInf.partIndex;next.getMediaInfoForTime=this.fetchAtBuffer_?"bufferedEnd "+bufferedEnd:"currentTime "+this.currentTime_(),next.mediaIndex=segmentIndex,next.startOfSegment=startTime,next.partIndex=_partIndex}var nextSegment=segments[next.mediaIndex],nextPart=nextSegment&&"number"==typeof next.partIndex&&nextSegment.parts&&nextSegment.parts[next.partIndex];if(!nextSegment||"number"==typeof next.partIndex&&!nextPart)return null;if("number"!=typeof next.partIndex&&nextSegment.parts&&(next.partIndex=0,nextPart=nextSegment.parts[0]),!bufferedTime&&nextPart&&!nextPart.independent)if(0===next.partIndex){var lastSegment=segments[next.mediaIndex-1],lastSegmentLastPart=lastSegment.parts&&lastSegment.parts.length&&lastSegment.parts[lastSegment.parts.length-1];lastSegmentLastPart&&lastSegmentLastPart.independent&&(next.mediaIndex-=1,next.partIndex=lastSegment.parts.length-1,next.independent="previous segment")}else nextSegment.parts[next.partIndex-1].independent&&(next.partIndex-=1,next.independent="previous part");var ended=this.mediaSource_&&"ended"===this.mediaSource_.readyState;return next.mediaIndex>=segments.length-1&&ended&&!this.seeking_()?null:this.generateSegmentInfo_(next)},_proto.generateSegmentInfo_=function(options){var independent=options.independent,playlist=options.playlist,mediaIndex=options.mediaIndex,startOfSegment=options.startOfSegment,isSyncRequest=options.isSyncRequest,partIndex=options.partIndex,forceTimestampOffset=options.forceTimestampOffset,getMediaInfoForTime=options.getMediaInfoForTime,segment=playlist.segments[mediaIndex],part="number"==typeof partIndex&&segment.parts[partIndex],segmentInfo={requestId:"segment-loader-"+Math.random(),uri:part&&part.resolvedUri||segment.resolvedUri,mediaIndex:mediaIndex,partIndex:part?partIndex:null,isSyncRequest:isSyncRequest,startOfSegment:startOfSegment,playlist:playlist,bytes:null,encryptedBytes:null,timestampOffset:null,timeline:segment.timeline,duration:part&&part.duration||segment.duration,segment:segment,part:part,byteLength:0,transmuxer:this.transmuxer_,getMediaInfoForTime:getMediaInfoForTime,independent:independent},overrideCheck=void 0!==forceTimestampOffset?forceTimestampOffset:this.isPendingTimestampOffset_;segmentInfo.timestampOffset=this.timestampOffsetForSegment_({segmentTimeline:segment.timeline,currentTimeline:this.currentTimeline_,startOfSegment:startOfSegment,buffered:this.buffered_(),overrideCheck:overrideCheck});var audioBufferedEnd=lastBufferedEnd(this.sourceUpdater_.audioBuffered());return"number"==typeof audioBufferedEnd&&(segmentInfo.audioAppendStart=audioBufferedEnd-this.sourceUpdater_.audioTimestampOffset()),this.sourceUpdater_.videoBuffered().length&&(segmentInfo.gopsToAlignWith=function(buffer,currentTime,mapping){if(null==currentTime||!buffer.length)return[];var i,currentTimePts=Math.ceil((currentTime-mapping+3)*clock_1);for(i=0;i<buffer.length&&!(buffer[i].pts>currentTimePts);i++);return buffer.slice(i)}(this.gopBuffer_,this.currentTime_()-this.sourceUpdater_.videoTimestampOffset(),this.timeMapping_)),segmentInfo},_proto.timestampOffsetForSegment_=function(options){return segmentTimeline=(_ref=options).segmentTimeline,currentTimeline=_ref.currentTimeline,startOfSegment=_ref.startOfSegment,buffered=_ref.buffered,_ref.overrideCheck||segmentTimeline!==currentTimeline?segmentTimeline<currentTimeline?startOfSegment:buffered.length?buffered.end(buffered.length-1):startOfSegment:null;var _ref,segmentTimeline,currentTimeline,startOfSegment,buffered},_proto.earlyAbortWhenNeeded_=function(stats){if(!this.vhs_.tech_.paused()&&this.xhrOptions_.timeout&&this.playlist_.attributes.BANDWIDTH&&!(Date.now()-(stats.firstBytesReceivedAt||Date.now())<1e3)){var currentTime=this.currentTime_(),measuredBandwidth=stats.bandwidth,segmentDuration=this.pendingSegment_.duration,requestTimeRemaining=Playlist.estimateSegmentRequestTime(segmentDuration,measuredBandwidth,this.playlist_,stats.bytesReceived),timeUntilRebuffer$1=function(buffered,currentTime,playbackRate){return void 0===playbackRate&&(playbackRate=1),((buffered.length?buffered.end(buffered.length-1):0)-currentTime)/playbackRate}(this.buffered_(),currentTime,this.vhs_.tech_.playbackRate())-1;if(!(requestTimeRemaining<=timeUntilRebuffer$1)){var switchCandidate=function(settings){var master=settings.master,currentTime=settings.currentTime,bandwidth=settings.bandwidth,duration=settings.duration,segmentDuration=settings.segmentDuration,timeUntilRebuffer=settings.timeUntilRebuffer,currentTimeline=settings.currentTimeline,syncController=settings.syncController,compatiblePlaylists=master.playlists.filter((function(playlist){return!Playlist.isIncompatible(playlist)})),enabledPlaylists=compatiblePlaylists.filter(Playlist.isEnabled);enabledPlaylists.length||(enabledPlaylists=compatiblePlaylists.filter((function(playlist){return!Playlist.isDisabled(playlist)})));var rebufferingEstimates=enabledPlaylists.filter(Playlist.hasAttribute.bind(null,"BANDWIDTH")).map((function(playlist){var numRequests=syncController.getSyncPoint(playlist,duration,currentTimeline,currentTime)?1:2;return{playlist:playlist,rebufferingImpact:Playlist.estimateSegmentRequestTime(segmentDuration,bandwidth,playlist)*numRequests-timeUntilRebuffer}})),noRebufferingPlaylists=rebufferingEstimates.filter((function(estimate){return estimate.rebufferingImpact<=0}));return stableSort(noRebufferingPlaylists,(function(a,b){return comparePlaylistBandwidth(b.playlist,a.playlist)})),noRebufferingPlaylists.length?noRebufferingPlaylists[0]:(stableSort(rebufferingEstimates,(function(a,b){return a.rebufferingImpact-b.rebufferingImpact})),rebufferingEstimates[0]||null)}({master:this.vhs_.playlists.master,currentTime:currentTime,bandwidth:measuredBandwidth,duration:this.duration_(),segmentDuration:segmentDuration,timeUntilRebuffer:timeUntilRebuffer$1,currentTimeline:this.currentTimeline_,syncController:this.syncController_});if(switchCandidate){var timeSavedBySwitching=requestTimeRemaining-timeUntilRebuffer$1-switchCandidate.rebufferingImpact,minimumTimeSaving=.5;timeUntilRebuffer$1<=.03333333333333333&&(minimumTimeSaving=1),!switchCandidate.playlist||switchCandidate.playlist.uri===this.playlist_.uri||timeSavedBySwitching<minimumTimeSaving||(this.bandwidth=switchCandidate.playlist.attributes.BANDWIDTH*Config.BANDWIDTH_VARIANCE+1,this.trigger("earlyabort"))}}}},_proto.handleAbort_=function(segmentInfo){this.logger_("Aborting "+segmentInfoString(segmentInfo)),this.mediaRequestsAborted+=1},_proto.handleProgress_=function(event,simpleSegment){this.earlyAbortWhenNeeded_(simpleSegment.stats),this.checkForAbort_(simpleSegment.requestId)||this.trigger("progress")},_proto.handleTrackInfo_=function(simpleSegment,trackInfo){this.earlyAbortWhenNeeded_(simpleSegment.stats),this.checkForAbort_(simpleSegment.requestId)||this.checkForIllegalMediaSwitch(trackInfo)||(trackInfo=trackInfo||{},function(a,b){if(!a&&!b||!a&&b||a&&!b)return!1;if(a===b)return!0;var akeys=Object.keys(a).sort(),bkeys=Object.keys(b).sort();if(akeys.length!==bkeys.length)return!1;for(var i=0;i<akeys.length;i++){var key=akeys[i];if(key!==bkeys[i])return!1;if(a[key]!==b[key])return!1}return!0}(this.currentMediaInfo_,trackInfo)||(this.appendInitSegment_={audio:!0,video:!0},this.startingMediaInfo_=trackInfo,this.currentMediaInfo_=trackInfo,this.logger_("trackinfo update",trackInfo),this.trigger("trackinfo")),this.checkForAbort_(simpleSegment.requestId)||(this.pendingSegment_.trackInfo=trackInfo,this.hasEnoughInfoToAppend_()&&this.processCallQueue_()))},_proto.handleTimingInfo_=function(simpleSegment,mediaType,timeType,time){if(this.earlyAbortWhenNeeded_(simpleSegment.stats),!this.checkForAbort_(simpleSegment.requestId)){var segmentInfo=this.pendingSegment_,timingInfoProperty=timingInfoPropertyForMedia(mediaType);segmentInfo[timingInfoProperty]=segmentInfo[timingInfoProperty]||{},segmentInfo[timingInfoProperty][timeType]=time,this.logger_("timinginfo: "+mediaType+" - "+timeType+" - "+time),this.hasEnoughInfoToAppend_()&&this.processCallQueue_()}},_proto.handleCaptions_=function(simpleSegment,captionData){var _this2=this;if(this.earlyAbortWhenNeeded_(simpleSegment.stats),!this.checkForAbort_(simpleSegment.requestId))if(0!==captionData.length)if(this.pendingSegment_.hasAppendedData_){var timestampOffset=null===this.sourceUpdater_.videoTimestampOffset()?this.sourceUpdater_.audioTimestampOffset():this.sourceUpdater_.videoTimestampOffset(),captionTracks={};captionData.forEach((function(caption){captionTracks[caption.stream]=captionTracks[caption.stream]||{startTime:1/0,captions:[],endTime:0};var captionTrack=captionTracks[caption.stream];captionTrack.startTime=Math.min(captionTrack.startTime,caption.startTime+timestampOffset),captionTrack.endTime=Math.max(captionTrack.endTime,caption.endTime+timestampOffset),captionTrack.captions.push(caption)})),Object.keys(captionTracks).forEach((function(trackName){var _captionTracks$trackN=captionTracks[trackName],startTime=_captionTracks$trackN.startTime,endTime=_captionTracks$trackN.endTime,captions=_captionTracks$trackN.captions,inbandTextTracks=_this2.inbandTextTracks_;_this2.logger_("adding cues from "+startTime+" -> "+endTime+" for "+trackName),function(inbandTextTracks,tech,captionStream){if(!inbandTextTracks[captionStream]){tech.trigger({type:"usage",name:"vhs-608"}),tech.trigger({type:"usage",name:"hls-608"});var instreamId=captionStream;/^cc708_/.test(captionStream)&&(instreamId="SERVICE"+captionStream.split("_")[1]);var track=tech.textTracks().getTrackById(instreamId);if(track)inbandTextTracks[captionStream]=track;else{var label=captionStream,language=captionStream,def=!1,captionService=(tech.options_.vhs&&tech.options_.vhs.captionServices||{})[instreamId];captionService&&(label=captionService.label,language=captionService.language,def=captionService.default),inbandTextTracks[captionStream]=tech.addRemoteTextTrack({kind:"captions",id:instreamId,default:def,label:label,language:language},!1).track}}}(inbandTextTracks,_this2.vhs_.tech_,trackName),removeCuesFromTrack(startTime,endTime,inbandTextTracks[trackName]),function(_ref){var inbandTextTracks=_ref.inbandTextTracks,captionArray=_ref.captionArray,timestampOffset=_ref.timestampOffset;if(captionArray){var Cue=window.WebKitDataCue||window.VTTCue;captionArray.forEach((function(caption){var track=caption.stream;inbandTextTracks[track].addCue(new Cue(caption.startTime+timestampOffset,caption.endTime+timestampOffset,caption.text))}))}}({captionArray:captions,inbandTextTracks:inbandTextTracks,timestampOffset:timestampOffset})})),this.transmuxer_&&this.transmuxer_.postMessage({action:"clearParsedMp4Captions"})}else this.metadataQueue_.caption.push(this.handleCaptions_.bind(this,simpleSegment,captionData));else this.logger_("SegmentLoader received no captions from a caption event")},_proto.handleId3_=function(simpleSegment,id3Frames,dispatchType){if(this.earlyAbortWhenNeeded_(simpleSegment.stats),!this.checkForAbort_(simpleSegment.requestId))if(this.pendingSegment_.hasAppendedData_){var timestampOffset=null===this.sourceUpdater_.videoTimestampOffset()?this.sourceUpdater_.audioTimestampOffset():this.sourceUpdater_.videoTimestampOffset();!function(inbandTextTracks,dispatchType,tech){inbandTextTracks.metadataTrack_||(inbandTextTracks.metadataTrack_=tech.addRemoteTextTrack({kind:"metadata",label:"Timed Metadata"},!1).track,inbandTextTracks.metadataTrack_.inBandMetadataTrackDispatchType=dispatchType)}(this.inbandTextTracks_,dispatchType,this.vhs_.tech_),addMetadata({inbandTextTracks:this.inbandTextTracks_,metadataArray:id3Frames,timestampOffset:timestampOffset,videoDuration:this.duration_()})}else this.metadataQueue_.id3.push(this.handleId3_.bind(this,simpleSegment,id3Frames,dispatchType))},_proto.processMetadataQueue_=function(){this.metadataQueue_.id3.forEach((function(fn){return fn()})),this.metadataQueue_.caption.forEach((function(fn){return fn()})),this.metadataQueue_.id3=[],this.metadataQueue_.caption=[]},_proto.processCallQueue_=function(){var callQueue=this.callQueue_;this.callQueue_=[],callQueue.forEach((function(fun){return fun()}))},_proto.processLoadQueue_=function(){var loadQueue=this.loadQueue_;this.loadQueue_=[],loadQueue.forEach((function(fun){return fun()}))},_proto.hasEnoughInfoToLoad_=function(){if("audio"!==this.loaderType_)return!0;var segmentInfo=this.pendingSegment_;return!!segmentInfo&&(!this.getCurrentMediaInfo_()||!shouldWaitForTimelineChange({timelineChangeController:this.timelineChangeController_,currentTimeline:this.currentTimeline_,segmentTimeline:segmentInfo.timeline,loaderType:this.loaderType_,audioDisabled:this.audioDisabled_}))},_proto.getCurrentMediaInfo_=function(segmentInfo){return void 0===segmentInfo&&(segmentInfo=this.pendingSegment_),segmentInfo&&segmentInfo.trackInfo||this.currentMediaInfo_},_proto.getMediaInfo_=function(segmentInfo){return void 0===segmentInfo&&(segmentInfo=this.pendingSegment_),this.getCurrentMediaInfo_(segmentInfo)||this.startingMediaInfo_},_proto.hasEnoughInfoToAppend_=function(){if(!this.sourceUpdater_.ready())return!1;if(this.waitingOnRemove_||this.quotaExceededErrorRetryTimeout_)return!1;var segmentInfo=this.pendingSegment_,trackInfo=this.getCurrentMediaInfo_();if(!segmentInfo||!trackInfo)return!1;var hasAudio=trackInfo.hasAudio,hasVideo=trackInfo.hasVideo,isMuxed=trackInfo.isMuxed;return!(hasVideo&&!segmentInfo.videoTimingInfo)&&(!(hasAudio&&!this.audioDisabled_&&!isMuxed&&!segmentInfo.audioTimingInfo)&&!shouldWaitForTimelineChange({timelineChangeController:this.timelineChangeController_,currentTimeline:this.currentTimeline_,segmentTimeline:segmentInfo.timeline,loaderType:this.loaderType_,audioDisabled:this.audioDisabled_}))},_proto.handleData_=function(simpleSegment,result){if(this.earlyAbortWhenNeeded_(simpleSegment.stats),!this.checkForAbort_(simpleSegment.requestId))if(!this.callQueue_.length&&this.hasEnoughInfoToAppend_()){var segmentInfo=this.pendingSegment_;if(this.setTimeMapping_(segmentInfo.timeline),this.updateMediaSecondsLoaded_(segmentInfo.part||segmentInfo.segment),"closed"!==this.mediaSource_.readyState){if(simpleSegment.map&&(simpleSegment.map=this.initSegmentForMap(simpleSegment.map,!0),segmentInfo.segment.map=simpleSegment.map),simpleSegment.key&&this.segmentKey(simpleSegment.key,!0),segmentInfo.isFmp4=simpleSegment.isFmp4,segmentInfo.timingInfo=segmentInfo.timingInfo||{},segmentInfo.isFmp4)this.trigger("fmp4"),segmentInfo.timingInfo.start=segmentInfo[timingInfoPropertyForMedia(result.type)].start;else{var firstVideoFrameTimeForData,trackInfo=this.getCurrentMediaInfo_(),useVideoTimingInfo="main"===this.loaderType_&&trackInfo&&trackInfo.hasVideo;useVideoTimingInfo&&(firstVideoFrameTimeForData=segmentInfo.videoTimingInfo.start),segmentInfo.timingInfo.start=this.trueSegmentStart_({currentStart:segmentInfo.timingInfo.start,playlist:segmentInfo.playlist,mediaIndex:segmentInfo.mediaIndex,currentVideoTimestampOffset:this.sourceUpdater_.videoTimestampOffset(),useVideoTimingInfo:useVideoTimingInfo,firstVideoFrameTimeForData:firstVideoFrameTimeForData,videoTimingInfo:segmentInfo.videoTimingInfo,audioTimingInfo:segmentInfo.audioTimingInfo})}if(this.updateAppendInitSegmentStatus(segmentInfo,result.type),this.updateSourceBufferTimestampOffset_(segmentInfo),segmentInfo.isSyncRequest){this.updateTimingInfoEnd_(segmentInfo),this.syncController_.saveSegmentTimingInfo({segmentInfo:segmentInfo,shouldSaveTimelineMapping:"main"===this.loaderType_});var next=this.chooseNextRequest_();if(next.mediaIndex!==segmentInfo.mediaIndex||next.partIndex!==segmentInfo.partIndex)return void this.logger_("sync segment was incorrect, not appending");this.logger_("sync segment was correct, appending")}segmentInfo.hasAppendedData_=!0,this.processMetadataQueue_(),this.appendData_(segmentInfo,result)}}else this.callQueue_.push(this.handleData_.bind(this,simpleSegment,result))},_proto.updateAppendInitSegmentStatus=function(segmentInfo,type){"main"!==this.loaderType_||"number"!=typeof segmentInfo.timestampOffset||segmentInfo.changedTimestampOffset||(this.appendInitSegment_={audio:!0,video:!0}),this.playlistOfLastInitSegment_[type]!==segmentInfo.playlist&&(this.appendInitSegment_[type]=!0)},_proto.getInitSegmentAndUpdateState_=function(_ref4){var type=_ref4.type,initSegment=_ref4.initSegment,map=_ref4.map,playlist=_ref4.playlist;if(map){var id=initSegmentId(map);if(this.activeInitSegmentId_===id)return null;initSegment=this.initSegmentForMap(map,!0).bytes,this.activeInitSegmentId_=id}return initSegment&&this.appendInitSegment_[type]?(this.playlistOfLastInitSegment_[type]=playlist,this.appendInitSegment_[type]=!1,this.activeInitSegmentId_=null,initSegment):null},_proto.handleQuotaExceededError_=function(_ref5,error){var _this3=this,segmentInfo=_ref5.segmentInfo,type=_ref5.type,bytes=_ref5.bytes,audioBuffered=this.sourceUpdater_.audioBuffered(),videoBuffered=this.sourceUpdater_.videoBuffered();audioBuffered.length>1&&this.logger_("On QUOTA_EXCEEDED_ERR, found gaps in the audio buffer: "+timeRangesToArray(audioBuffered).join(", ")),videoBuffered.length>1&&this.logger_("On QUOTA_EXCEEDED_ERR, found gaps in the video buffer: "+timeRangesToArray(videoBuffered).join(", "));var audioBufferStart=audioBuffered.length?audioBuffered.start(0):0,audioBufferEnd=audioBuffered.length?audioBuffered.end(audioBuffered.length-1):0,videoBufferStart=videoBuffered.length?videoBuffered.start(0):0,videoBufferEnd=videoBuffered.length?videoBuffered.end(videoBuffered.length-1):0;if(audioBufferEnd-audioBufferStart<=1&&videoBufferEnd-videoBufferStart<=1)return this.logger_("On QUOTA_EXCEEDED_ERR, single segment too large to append to buffer, triggering an error. Appended byte length: "+bytes.byteLength+", audio buffer: "+timeRangesToArray(audioBuffered).join(", ")+", video buffer: "+timeRangesToArray(videoBuffered).join(", ")+", "),this.error({message:"Quota exceeded error with append of a single segment of content",excludeUntil:1/0}),void this.trigger("error");this.waitingOnRemove_=!0,this.callQueue_.push(this.appendToSourceBuffer_.bind(this,{segmentInfo:segmentInfo,type:type,bytes:bytes}));var timeToRemoveUntil=this.currentTime_()-1;this.logger_("On QUOTA_EXCEEDED_ERR, removing audio/video from 0 to "+timeToRemoveUntil),this.remove(0,timeToRemoveUntil,(function(){_this3.logger_("On QUOTA_EXCEEDED_ERR, retrying append in 1s"),_this3.waitingOnRemove_=!1,_this3.quotaExceededErrorRetryTimeout_=window.setTimeout((function(){_this3.logger_("On QUOTA_EXCEEDED_ERR, re-processing call queue"),_this3.quotaExceededErrorRetryTimeout_=null,_this3.processCallQueue_()}),1e3)}),!0)},_proto.handleAppendError_=function(_ref6,error){var segmentInfo=_ref6.segmentInfo,type=_ref6.type,bytes=_ref6.bytes;error&&(22!==error.code?(this.logger_("Received non QUOTA_EXCEEDED_ERR on append",error),this.error(type+" append of "+bytes.length+"b failed for segment #"+segmentInfo.mediaIndex+" in playlist "+segmentInfo.playlist.id),this.trigger("appenderror")):this.handleQuotaExceededError_({segmentInfo:segmentInfo,type:type,bytes:bytes}))},_proto.appendToSourceBuffer_=function(_ref7){var segmentObj,tempBuffer,offset,segmentInfo=_ref7.segmentInfo,type=_ref7.type,initSegment=_ref7.initSegment,data=_ref7.data,bytes=_ref7.bytes;if(!bytes){var segments=[data],byteLength=data.byteLength;initSegment&&(segments.unshift(initSegment),byteLength+=initSegment.byteLength),offset=0,(segmentObj={bytes:byteLength,segments:segments}).bytes&&(tempBuffer=new Uint8Array(segmentObj.bytes),segmentObj.segments.forEach((function(segment){tempBuffer.set(segment,offset),offset+=segment.byteLength}))),bytes=tempBuffer}this.sourceUpdater_.appendBuffer({segmentInfo:segmentInfo,type:type,bytes:bytes},this.handleAppendError_.bind(this,{segmentInfo:segmentInfo,type:type,bytes:bytes}))},_proto.handleSegmentTimingInfo_=function(type,requestId,segmentTimingInfo){if(this.pendingSegment_&&requestId===this.pendingSegment_.requestId){var segment=this.pendingSegment_.segment,timingInfoProperty=type+"TimingInfo";segment[timingInfoProperty]||(segment[timingInfoProperty]={}),segment[timingInfoProperty].transmuxerPrependedSeconds=segmentTimingInfo.prependedContentDuration||0,segment[timingInfoProperty].transmuxedPresentationStart=segmentTimingInfo.start.presentation,segment[timingInfoProperty].transmuxedDecodeStart=segmentTimingInfo.start.decode,segment[timingInfoProperty].transmuxedPresentationEnd=segmentTimingInfo.end.presentation,segment[timingInfoProperty].transmuxedDecodeEnd=segmentTimingInfo.end.decode,segment[timingInfoProperty].baseMediaDecodeTime=segmentTimingInfo.baseMediaDecodeTime}},_proto.appendData_=function(segmentInfo,result){var type=result.type,data=result.data;if(data&&data.byteLength&&("audio"!==type||!this.audioDisabled_)){var initSegment=this.getInitSegmentAndUpdateState_({type:type,initSegment:result.initSegment,playlist:segmentInfo.playlist,map:segmentInfo.isFmp4?segmentInfo.segment.map:null});this.appendToSourceBuffer_({segmentInfo:segmentInfo,type:type,initSegment:initSegment,data:data})}},_proto.loadSegment_=function(segmentInfo){var _this4=this;this.state="WAITING",this.pendingSegment_=segmentInfo,this.trimBackBuffer_(segmentInfo),"number"==typeof segmentInfo.timestampOffset&&this.transmuxer_&&this.transmuxer_.postMessage({action:"clearAllMp4Captions"}),this.hasEnoughInfoToLoad_()?this.updateTransmuxerAndRequestSegment_(segmentInfo):this.loadQueue_.push((function(){var options=_extends_1({},segmentInfo,{forceTimestampOffset:!0});_extends_1(segmentInfo,_this4.generateSegmentInfo_(options)),_this4.isPendingTimestampOffset_=!1,_this4.updateTransmuxerAndRequestSegment_(segmentInfo)}))},_proto.updateTransmuxerAndRequestSegment_=function(segmentInfo){var _this5=this;this.shouldUpdateTransmuxerTimestampOffset_(segmentInfo.timestampOffset)&&(this.gopBuffer_.length=0,segmentInfo.gopsToAlignWith=[],this.timeMapping_=0,this.transmuxer_.postMessage({action:"reset"}),this.transmuxer_.postMessage({action:"setTimestampOffset",timestampOffset:segmentInfo.timestampOffset}));var simpleSegment=this.createSimplifiedSegmentObj_(segmentInfo),isEndOfStream=this.isEndOfStream_(segmentInfo.mediaIndex,segmentInfo.playlist,segmentInfo.partIndex),isWalkingForward=null!==this.mediaIndex,isDiscontinuity=segmentInfo.timeline!==this.currentTimeline_&&segmentInfo.timeline>0,isEndOfTimeline=isEndOfStream||isWalkingForward&&isDiscontinuity;this.logger_("Requesting "+segmentInfoString(segmentInfo)),simpleSegment.map&&!simpleSegment.map.bytes&&(this.logger_("going to request init segment."),this.appendInitSegment_={video:!0,audio:!0}),segmentInfo.abortRequests=mediaSegmentRequest({xhr:this.vhs_.xhr,xhrOptions:this.xhrOptions_,decryptionWorker:this.decrypter_,segment:simpleSegment,abortFn:this.handleAbort_.bind(this,segmentInfo),progressFn:this.handleProgress_.bind(this),trackInfoFn:this.handleTrackInfo_.bind(this),timingInfoFn:this.handleTimingInfo_.bind(this),videoSegmentTimingInfoFn:this.handleSegmentTimingInfo_.bind(this,"video",segmentInfo.requestId),audioSegmentTimingInfoFn:this.handleSegmentTimingInfo_.bind(this,"audio",segmentInfo.requestId),captionsFn:this.handleCaptions_.bind(this),isEndOfTimeline:isEndOfTimeline,endedTimelineFn:function(){_this5.logger_("received endedtimeline callback")},id3Fn:this.handleId3_.bind(this),dataFn:this.handleData_.bind(this),doneFn:this.segmentRequestFinished_.bind(this),onTransmuxerLog:function(_ref8){var message=_ref8.message,level=_ref8.level,stream=_ref8.stream;_this5.logger_(segmentInfoString(segmentInfo)+" logged from transmuxer stream "+stream+" as a "+level+": "+message)}})},_proto.trimBackBuffer_=function(segmentInfo){var removeToTime=function(seekable,currentTime,targetDuration){var trimTime=currentTime-Config.BACK_BUFFER_LENGTH;seekable.length&&(trimTime=Math.max(trimTime,seekable.start(0)));var maxTrimTime=currentTime-targetDuration;return Math.min(maxTrimTime,trimTime)}(this.seekable_(),this.currentTime_(),this.playlist_.targetDuration||10);removeToTime>0&&this.remove(0,removeToTime)},_proto.createSimplifiedSegmentObj_=function(segmentInfo){var segment=segmentInfo.segment,part=segmentInfo.part,simpleSegment={resolvedUri:part?part.resolvedUri:segment.resolvedUri,byterange:part?part.byterange:segment.byterange,requestId:segmentInfo.requestId,transmuxer:segmentInfo.transmuxer,audioAppendStart:segmentInfo.audioAppendStart,gopsToAlignWith:segmentInfo.gopsToAlignWith,part:segmentInfo.part},previousSegment=segmentInfo.playlist.segments[segmentInfo.mediaIndex-1];if(previousSegment&&previousSegment.timeline===segment.timeline&&(previousSegment.videoTimingInfo?simpleSegment.baseStartTime=previousSegment.videoTimingInfo.transmuxedDecodeEnd:previousSegment.audioTimingInfo&&(simpleSegment.baseStartTime=previousSegment.audioTimingInfo.transmuxedDecodeEnd)),segment.key){var iv=segment.key.iv||new Uint32Array([0,0,0,segmentInfo.mediaIndex+segmentInfo.playlist.mediaSequence]);simpleSegment.key=this.segmentKey(segment.key),simpleSegment.key.iv=iv}return segment.map&&(simpleSegment.map=this.initSegmentForMap(segment.map)),simpleSegment},_proto.saveTransferStats_=function(stats){this.mediaRequests+=1,stats&&(this.mediaBytesTransferred+=stats.bytesReceived,this.mediaTransferDuration+=stats.roundTripTime)},_proto.saveBandwidthRelatedStats_=function(duration,stats){this.pendingSegment_.byteLength=stats.bytesReceived,duration<.016666666666666666?this.logger_("Ignoring segment's bandwidth because its duration of "+duration+" is less than the min to record 0.016666666666666666"):(this.bandwidth=stats.bandwidth,this.roundTrip=stats.roundTripTime)},_proto.handleTimeout_=function(){this.mediaRequestsTimedout+=1,this.bandwidth=1,this.roundTrip=NaN,this.trigger("bandwidthupdate")},_proto.segmentRequestFinished_=function(error,simpleSegment,result){if(this.callQueue_.length)this.callQueue_.push(this.segmentRequestFinished_.bind(this,error,simpleSegment,result));else if(this.saveTransferStats_(simpleSegment.stats),this.pendingSegment_&&simpleSegment.requestId===this.pendingSegment_.requestId){if(error){if(this.pendingSegment_=null,this.state="READY",error.code===REQUEST_ERRORS_ABORTED)return;return this.pause(),error.code===REQUEST_ERRORS_TIMEOUT?void this.handleTimeout_():(this.mediaRequestsErrored+=1,this.error(error),void this.trigger("error"))}var segmentInfo=this.pendingSegment_;this.saveBandwidthRelatedStats_(segmentInfo.duration,simpleSegment.stats),segmentInfo.endOfAllRequests=simpleSegment.endOfAllRequests,result.gopInfo&&(this.gopBuffer_=function(buffer,gops,replace){if(!gops.length)return buffer;if(replace)return gops.slice();for(var start=gops[0].pts,i=0;i<buffer.length&&!(buffer[i].pts>=start);i++);return buffer.slice(0,i).concat(gops)}(this.gopBuffer_,result.gopInfo,this.safeAppend_)),this.state="APPENDING",this.trigger("appending"),this.waitForAppendsToComplete_(segmentInfo)}},_proto.setTimeMapping_=function(timeline){var timelineMapping=this.syncController_.mappingForTimeline(timeline);null!==timelineMapping&&(this.timeMapping_=timelineMapping)},_proto.updateMediaSecondsLoaded_=function(segment){"number"==typeof segment.start&&"number"==typeof segment.end?this.mediaSecondsLoaded+=segment.end-segment.start:this.mediaSecondsLoaded+=segment.duration},_proto.shouldUpdateTransmuxerTimestampOffset_=function(timestampOffset){return null!==timestampOffset&&("main"===this.loaderType_&&timestampOffset!==this.sourceUpdater_.videoTimestampOffset()||!this.audioDisabled_&&timestampOffset!==this.sourceUpdater_.audioTimestampOffset())},_proto.trueSegmentStart_=function(_ref9){var currentStart=_ref9.currentStart,playlist=_ref9.playlist,mediaIndex=_ref9.mediaIndex,firstVideoFrameTimeForData=_ref9.firstVideoFrameTimeForData,currentVideoTimestampOffset=_ref9.currentVideoTimestampOffset,useVideoTimingInfo=_ref9.useVideoTimingInfo,videoTimingInfo=_ref9.videoTimingInfo,audioTimingInfo=_ref9.audioTimingInfo;if(void 0!==currentStart)return currentStart;if(!useVideoTimingInfo)return audioTimingInfo.start;var previousSegment=playlist.segments[mediaIndex-1];return 0!==mediaIndex&&previousSegment&&void 0!==previousSegment.start&&previousSegment.end===firstVideoFrameTimeForData+currentVideoTimestampOffset?videoTimingInfo.start:firstVideoFrameTimeForData},_proto.waitForAppendsToComplete_=function(segmentInfo){var trackInfo=this.getCurrentMediaInfo_(segmentInfo);if(!trackInfo)return this.error({message:"No starting media returned, likely due to an unsupported media format.",blacklistDuration:1/0}),void this.trigger("error");var hasAudio=trackInfo.hasAudio,hasVideo=trackInfo.hasVideo,isMuxed=trackInfo.isMuxed,waitForVideo="main"===this.loaderType_&&hasVideo,waitForAudio=!this.audioDisabled_&&hasAudio&&!isMuxed;if(segmentInfo.waitingOnAppends=0,!segmentInfo.hasAppendedData_)return segmentInfo.timingInfo||"number"!=typeof segmentInfo.timestampOffset||(this.isPendingTimestampOffset_=!0),segmentInfo.timingInfo={start:0},segmentInfo.waitingOnAppends++,this.isPendingTimestampOffset_||(this.updateSourceBufferTimestampOffset_(segmentInfo),this.processMetadataQueue_()),void this.checkAppendsDone_(segmentInfo);waitForVideo&&segmentInfo.waitingOnAppends++,waitForAudio&&segmentInfo.waitingOnAppends++,waitForVideo&&this.sourceUpdater_.videoQueueCallback(this.checkAppendsDone_.bind(this,segmentInfo)),waitForAudio&&this.sourceUpdater_.audioQueueCallback(this.checkAppendsDone_.bind(this,segmentInfo))},_proto.checkAppendsDone_=function(segmentInfo){this.checkForAbort_(segmentInfo.requestId)||(segmentInfo.waitingOnAppends--,0===segmentInfo.waitingOnAppends&&this.handleAppendsDone_())},_proto.checkForIllegalMediaSwitch=function(trackInfo){var illegalMediaSwitchError=function(loaderType,startingMedia,trackInfo){return"main"===loaderType&&startingMedia&&trackInfo?trackInfo.hasAudio||trackInfo.hasVideo?startingMedia.hasVideo&&!trackInfo.hasVideo?"Only audio found in segment when we expected video. We can't switch to audio only from a stream that had video. To get rid of this message, please add codec information to the manifest.":!startingMedia.hasVideo&&trackInfo.hasVideo?"Video found in segment when we expected only audio. We can't switch to a stream with video from an audio only stream. To get rid of this message, please add codec information to the manifest.":null:"Neither audio nor video found in segment.":null}(this.loaderType_,this.getCurrentMediaInfo_(),trackInfo);return!!illegalMediaSwitchError&&(this.error({message:illegalMediaSwitchError,blacklistDuration:1/0}),this.trigger("error"),!0)},_proto.updateSourceBufferTimestampOffset_=function(segmentInfo){if(null!==segmentInfo.timestampOffset&&"number"==typeof segmentInfo.timingInfo.start&&!segmentInfo.changedTimestampOffset&&"main"===this.loaderType_){var didChange=!1;segmentInfo.timestampOffset-=this.getSegmentStartTimeForTimestampOffsetCalculation_({videoTimingInfo:segmentInfo.segment.videoTimingInfo,audioTimingInfo:segmentInfo.segment.audioTimingInfo,timingInfo:segmentInfo.timingInfo}),segmentInfo.changedTimestampOffset=!0,segmentInfo.timestampOffset!==this.sourceUpdater_.videoTimestampOffset()&&(this.sourceUpdater_.videoTimestampOffset(segmentInfo.timestampOffset),didChange=!0),segmentInfo.timestampOffset!==this.sourceUpdater_.audioTimestampOffset()&&(this.sourceUpdater_.audioTimestampOffset(segmentInfo.timestampOffset),didChange=!0),didChange&&this.trigger("timestampoffset")}},_proto.getSegmentStartTimeForTimestampOffsetCalculation_=function(_ref10){var videoTimingInfo=_ref10.videoTimingInfo,audioTimingInfo=_ref10.audioTimingInfo,timingInfo=_ref10.timingInfo;return this.useDtsForTimestampOffset_?videoTimingInfo&&"number"==typeof videoTimingInfo.transmuxedDecodeStart?videoTimingInfo.transmuxedDecodeStart:audioTimingInfo&&"number"==typeof audioTimingInfo.transmuxedDecodeStart?audioTimingInfo.transmuxedDecodeStart:timingInfo.start:timingInfo.start},_proto.updateTimingInfoEnd_=function(segmentInfo){segmentInfo.timingInfo=segmentInfo.timingInfo||{};var trackInfo=this.getMediaInfo_(),prioritizedTimingInfo="main"===this.loaderType_&&trackInfo&&trackInfo.hasVideo&&segmentInfo.videoTimingInfo?segmentInfo.videoTimingInfo:segmentInfo.audioTimingInfo;prioritizedTimingInfo&&(segmentInfo.timingInfo.end="number"==typeof prioritizedTimingInfo.end?prioritizedTimingInfo.end:prioritizedTimingInfo.start+segmentInfo.duration)},_proto.handleAppendsDone_=function(){if(this.pendingSegment_&&this.trigger("appendsdone"),!this.pendingSegment_)return this.state="READY",void(this.paused()||this.monitorBuffer_());var segmentInfo=this.pendingSegment_;this.updateTimingInfoEnd_(segmentInfo),this.shouldSaveSegmentTimingInfo_&&this.syncController_.saveSegmentTimingInfo({segmentInfo:segmentInfo,shouldSaveTimelineMapping:"main"===this.loaderType_});var segmentDurationMessage=getTroublesomeSegmentDurationMessage(segmentInfo,this.sourceType_);if(segmentDurationMessage&&("warn"===segmentDurationMessage.severity?videojs.log.warn(segmentDurationMessage.message):this.logger_(segmentDurationMessage.message)),this.recordThroughput_(segmentInfo),this.pendingSegment_=null,this.state="READY",!segmentInfo.isSyncRequest||(this.trigger("syncinfoupdate"),segmentInfo.hasAppendedData_)){this.logger_("Appended "+segmentInfoString(segmentInfo)),this.addSegmentMetadataCue_(segmentInfo),this.fetchAtBuffer_=!0,this.currentTimeline_!==segmentInfo.timeline&&(this.timelineChangeController_.lastTimelineChange({type:this.loaderType_,from:this.currentTimeline_,to:segmentInfo.timeline}),"main"!==this.loaderType_||this.audioDisabled_||this.timelineChangeController_.lastTimelineChange({type:"audio",from:this.currentTimeline_,to:segmentInfo.timeline})),this.currentTimeline_=segmentInfo.timeline,this.trigger("syncinfoupdate");var segment=segmentInfo.segment,part=segmentInfo.part,badSegmentGuess=segment.end&&this.currentTime_()-segment.end>3*segmentInfo.playlist.targetDuration,badPartGuess=part&&part.end&&this.currentTime_()-part.end>3*segmentInfo.playlist.partTargetDuration;if(badSegmentGuess||badPartGuess)return this.logger_("bad "+(badSegmentGuess?"segment":"part")+" "+segmentInfoString(segmentInfo)),void this.resetEverything();null!==this.mediaIndex&&this.trigger("bandwidthupdate"),this.trigger("progress"),this.mediaIndex=segmentInfo.mediaIndex,this.partIndex=segmentInfo.partIndex,this.isEndOfStream_(segmentInfo.mediaIndex,segmentInfo.playlist,segmentInfo.partIndex)&&this.endOfStream(),this.trigger("appended"),segmentInfo.hasAppendedData_&&this.mediaAppends++,this.paused()||this.monitorBuffer_()}else this.logger_("Throwing away un-appended sync request "+segmentInfoString(segmentInfo))},_proto.recordThroughput_=function(segmentInfo){if(segmentInfo.duration<.016666666666666666)this.logger_("Ignoring segment's throughput because its duration of "+segmentInfo.duration+" is less than the min to record 0.016666666666666666");else{var rate=this.throughput.rate,segmentProcessingTime=Date.now()-segmentInfo.endOfAllRequests+1,segmentProcessingThroughput=Math.floor(segmentInfo.byteLength/segmentProcessingTime*8*1e3);this.throughput.rate+=(segmentProcessingThroughput-rate)/++this.throughput.count}},_proto.addSegmentMetadataCue_=function(segmentInfo){if(this.segmentMetadataTrack_){var segment=segmentInfo.segment,start=segment.start,end=segment.end;if(finite(start)&&finite(end)){removeCuesFromTrack(start,end,this.segmentMetadataTrack_);var Cue=window.WebKitDataCue||window.VTTCue,value={custom:segment.custom,dateTimeObject:segment.dateTimeObject,dateTimeString:segment.dateTimeString,bandwidth:segmentInfo.playlist.attributes.BANDWIDTH,resolution:segmentInfo.playlist.attributes.RESOLUTION,codecs:segmentInfo.playlist.attributes.CODECS,byteLength:segmentInfo.byteLength,uri:segmentInfo.uri,timeline:segmentInfo.timeline,playlist:segmentInfo.playlist.id,start:start,end:end},cue=new Cue(start,end,JSON.stringify(value));cue.value=value,this.segmentMetadataTrack_.addCue(cue)}}},SegmentLoader}(videojs.EventTarget);function noop(){}var Vhs$1,toTitleCase=function(string){return"string"!=typeof string?string:string.replace(/./,(function(w){return w.toUpperCase()}))},bufferTypes=["video","audio"],_updating=function(type,sourceUpdater){var sourceBuffer=sourceUpdater[type+"Buffer"];return sourceBuffer&&sourceBuffer.updating||sourceUpdater.queuePending[type]},shiftQueue=function shiftQueue(type,sourceUpdater){if(0!==sourceUpdater.queue.length){var queueIndex=0,queueEntry=sourceUpdater.queue[queueIndex];if("mediaSource"!==queueEntry.type){if("mediaSource"!==type&&sourceUpdater.ready()&&"closed"!==sourceUpdater.mediaSource.readyState&&!_updating(type,sourceUpdater)){if(queueEntry.type!==type){if(queueIndex=function(type,queue){for(var i=0;i<queue.length;i++){var queueEntry=queue[i];if("mediaSource"===queueEntry.type)return null;if(queueEntry.type===type)return i}return null}(type,sourceUpdater.queue),null===queueIndex)return;queueEntry=sourceUpdater.queue[queueIndex]}return sourceUpdater.queue.splice(queueIndex,1),sourceUpdater.queuePending[type]=queueEntry,queueEntry.action(type,sourceUpdater),queueEntry.doneFn?void 0:(sourceUpdater.queuePending[type]=null,void shiftQueue(type,sourceUpdater))}}else sourceUpdater.updating()||"closed"===sourceUpdater.mediaSource.readyState||(sourceUpdater.queue.shift(),queueEntry.action(sourceUpdater),queueEntry.doneFn&&queueEntry.doneFn(),shiftQueue("audio",sourceUpdater),shiftQueue("video",sourceUpdater))}},cleanupBuffer=function(type,sourceUpdater){var buffer=sourceUpdater[type+"Buffer"],titleType=toTitleCase(type);buffer&&(buffer.removeEventListener("updateend",sourceUpdater["on"+titleType+"UpdateEnd_"]),buffer.removeEventListener("error",sourceUpdater["on"+titleType+"Error_"]),sourceUpdater.codecs[type]=null,sourceUpdater[type+"Buffer"]=null)},inSourceBuffers=function(mediaSource,sourceBuffer){return mediaSource&&sourceBuffer&&-1!==Array.prototype.indexOf.call(mediaSource.sourceBuffers,sourceBuffer)},actions_appendBuffer=function(bytes,segmentInfo,onError){return function(type,sourceUpdater){var sourceBuffer=sourceUpdater[type+"Buffer"];if(inSourceBuffers(sourceUpdater.mediaSource,sourceBuffer)){sourceUpdater.logger_("Appending segment "+segmentInfo.mediaIndex+"'s "+bytes.length+" bytes to "+type+"Buffer");try{sourceBuffer.appendBuffer(bytes)}catch(e){sourceUpdater.logger_("Error with code "+e.code+" "+(22===e.code?"(QUOTA_EXCEEDED_ERR) ":"")+"when appending segment "+segmentInfo.mediaIndex+" to "+type+"Buffer"),sourceUpdater.queuePending[type]=null,onError(e)}}}},actions_remove=function(start,end){return function(type,sourceUpdater){var sourceBuffer=sourceUpdater[type+"Buffer"];if(inSourceBuffers(sourceUpdater.mediaSource,sourceBuffer)){sourceUpdater.logger_("Removing "+start+" to "+end+" from "+type+"Buffer");try{sourceBuffer.remove(start,end)}catch(e){sourceUpdater.logger_("Remove "+start+" to "+end+" from "+type+"Buffer failed")}}}},actions_timestampOffset=function(offset){return function(type,sourceUpdater){var sourceBuffer=sourceUpdater[type+"Buffer"];inSourceBuffers(sourceUpdater.mediaSource,sourceBuffer)&&(sourceUpdater.logger_("Setting "+type+"timestampOffset to "+offset),sourceBuffer.timestampOffset=offset)}},actions_callback=function(_callback){return function(type,sourceUpdater){_callback()}},actions_endOfStream=function(error){return function(sourceUpdater){if("open"===sourceUpdater.mediaSource.readyState){sourceUpdater.logger_("Calling mediaSource endOfStream("+(error||"")+")");try{sourceUpdater.mediaSource.endOfStream(error)}catch(e){videojs.log.warn("Failed to call media source endOfStream",e)}}}},actions_duration=function(_duration){return function(sourceUpdater){sourceUpdater.logger_("Setting mediaSource duration to "+_duration);try{sourceUpdater.mediaSource.duration=_duration}catch(e){videojs.log.warn("Failed to set media source duration",e)}}},actions_abort=function(){return function(type,sourceUpdater){if("open"===sourceUpdater.mediaSource.readyState){var sourceBuffer=sourceUpdater[type+"Buffer"];if(inSourceBuffers(sourceUpdater.mediaSource,sourceBuffer)){sourceUpdater.logger_("calling abort on "+type+"Buffer");try{sourceBuffer.abort()}catch(e){videojs.log.warn("Failed to abort on "+type+"Buffer",e)}}}}},actions_addSourceBuffer=function(type,codec){return function(sourceUpdater){var titleType=toTitleCase(type),mime=getMimeForCodec(codec);sourceUpdater.logger_("Adding "+type+"Buffer with codec "+codec+" to mediaSource");var sourceBuffer=sourceUpdater.mediaSource.addSourceBuffer(mime);sourceBuffer.addEventListener("updateend",sourceUpdater["on"+titleType+"UpdateEnd_"]),sourceBuffer.addEventListener("error",sourceUpdater["on"+titleType+"Error_"]),sourceUpdater.codecs[type]=codec,sourceUpdater[type+"Buffer"]=sourceBuffer}},actions_removeSourceBuffer=function(type){return function(sourceUpdater){var sourceBuffer=sourceUpdater[type+"Buffer"];if(cleanupBuffer(type,sourceUpdater),inSourceBuffers(sourceUpdater.mediaSource,sourceBuffer)){sourceUpdater.logger_("Removing "+type+"Buffer with codec "+sourceUpdater.codecs[type]+" from mediaSource");try{sourceUpdater.mediaSource.removeSourceBuffer(sourceBuffer)}catch(e){videojs.log.warn("Failed to removeSourceBuffer "+type+"Buffer",e)}}}},actions_changeType=function(codec){return function(type,sourceUpdater){var sourceBuffer=sourceUpdater[type+"Buffer"],mime=getMimeForCodec(codec);inSourceBuffers(sourceUpdater.mediaSource,sourceBuffer)&&sourceUpdater.codecs[type]!==codec&&(sourceUpdater.logger_("changing "+type+"Buffer codec from "+sourceUpdater.codecs[type]+" to "+codec),sourceBuffer.changeType(mime),sourceUpdater.codecs[type]=codec)}},pushQueue=function(_ref){var type=_ref.type,sourceUpdater=_ref.sourceUpdater,action=_ref.action,doneFn=_ref.doneFn,name=_ref.name;sourceUpdater.queue.push({type:type,action:action,doneFn:doneFn,name:name}),shiftQueue(type,sourceUpdater)},onUpdateend=function(type,sourceUpdater){return function(e){if(sourceUpdater.queuePending[type]){var doneFn=sourceUpdater.queuePending[type].doneFn;sourceUpdater.queuePending[type]=null,doneFn&&doneFn(sourceUpdater[type+"Error_"])}shiftQueue(type,sourceUpdater)}},SourceUpdater=function(_videojs$EventTarget){function SourceUpdater(mediaSource){var _this;return(_this=_videojs$EventTarget.call(this)||this).mediaSource=mediaSource,_this.sourceopenListener_=function(){return shiftQueue("mediaSource",assertThisInitialized(_this))},_this.mediaSource.addEventListener("sourceopen",_this.sourceopenListener_),_this.logger_=logger("SourceUpdater"),_this.audioTimestampOffset_=0,_this.videoTimestampOffset_=0,_this.queue=[],_this.queuePending={audio:null,video:null},_this.delayedAudioAppendQueue_=[],_this.videoAppendQueued_=!1,_this.codecs={},_this.onVideoUpdateEnd_=onUpdateend("video",assertThisInitialized(_this)),_this.onAudioUpdateEnd_=onUpdateend("audio",assertThisInitialized(_this)),_this.onVideoError_=function(e){_this.videoError_=e},_this.onAudioError_=function(e){_this.audioError_=e},_this.createdSourceBuffers_=!1,_this.initializedEme_=!1,_this.triggeredReady_=!1,_this}inheritsLoose(SourceUpdater,_videojs$EventTarget);var _proto=SourceUpdater.prototype;return _proto.initializedEme=function(){this.initializedEme_=!0,this.triggerReady()},_proto.hasCreatedSourceBuffers=function(){return this.createdSourceBuffers_},_proto.hasInitializedAnyEme=function(){return this.initializedEme_},_proto.ready=function(){return this.hasCreatedSourceBuffers()&&this.hasInitializedAnyEme()},_proto.createSourceBuffers=function(codecs){this.hasCreatedSourceBuffers()||(this.addOrChangeSourceBuffers(codecs),this.createdSourceBuffers_=!0,this.trigger("createdsourcebuffers"),this.triggerReady())},_proto.triggerReady=function(){this.ready()&&!this.triggeredReady_&&(this.triggeredReady_=!0,this.trigger("ready"))},_proto.addSourceBuffer=function(type,codec){pushQueue({type:"mediaSource",sourceUpdater:this,action:actions_addSourceBuffer(type,codec),name:"addSourceBuffer"})},_proto.abort=function(type){pushQueue({type:type,sourceUpdater:this,action:actions_abort(type),name:"abort"})},_proto.removeSourceBuffer=function(type){this.canRemoveSourceBuffer()?pushQueue({type:"mediaSource",sourceUpdater:this,action:actions_removeSourceBuffer(type),name:"removeSourceBuffer"}):videojs.log.error("removeSourceBuffer is not supported!")},_proto.canRemoveSourceBuffer=function(){return!videojs.browser.IE_VERSION&&!videojs.browser.IS_FIREFOX&&window.MediaSource&&window.MediaSource.prototype&&"function"==typeof window.MediaSource.prototype.removeSourceBuffer},SourceUpdater.canChangeType=function(){return window.SourceBuffer&&window.SourceBuffer.prototype&&"function"==typeof window.SourceBuffer.prototype.changeType},_proto.canChangeType=function(){return this.constructor.canChangeType()},_proto.changeType=function(type,codec){this.canChangeType()?pushQueue({type:type,sourceUpdater:this,action:actions_changeType(codec),name:"changeType"}):videojs.log.error("changeType is not supported!")},_proto.addOrChangeSourceBuffers=function(codecs){var _this2=this;if(!codecs||"object"!=typeof codecs||0===Object.keys(codecs).length)throw new Error("Cannot addOrChangeSourceBuffers to undefined codecs");Object.keys(codecs).forEach((function(type){var codec=codecs[type];if(!_this2.hasCreatedSourceBuffers())return _this2.addSourceBuffer(type,codec);_this2.canChangeType()&&_this2.changeType(type,codec)}))},_proto.appendBuffer=function(options,doneFn){var _this3=this,segmentInfo=options.segmentInfo,type=options.type,bytes=options.bytes;if(this.processedAppend_=!0,"audio"===type&&this.videoBuffer&&!this.videoAppendQueued_)return this.delayedAudioAppendQueue_.push([options,doneFn]),void this.logger_("delayed audio append of "+bytes.length+" until video append");if(pushQueue({type:type,sourceUpdater:this,action:actions_appendBuffer(bytes,segmentInfo||{mediaIndex:-1},doneFn),doneFn:doneFn,name:"appendBuffer"}),"video"===type){if(this.videoAppendQueued_=!0,!this.delayedAudioAppendQueue_.length)return;var queue=this.delayedAudioAppendQueue_.slice();this.logger_("queuing delayed audio "+queue.length+" appendBuffers"),this.delayedAudioAppendQueue_.length=0,queue.forEach((function(que){_this3.appendBuffer.apply(_this3,que)}))}},_proto.audioBuffered=function(){return inSourceBuffers(this.mediaSource,this.audioBuffer)&&this.audioBuffer.buffered?this.audioBuffer.buffered:videojs.createTimeRange()},_proto.videoBuffered=function(){return inSourceBuffers(this.mediaSource,this.videoBuffer)&&this.videoBuffer.buffered?this.videoBuffer.buffered:videojs.createTimeRange()},_proto.buffered=function(){var video=inSourceBuffers(this.mediaSource,this.videoBuffer)?this.videoBuffer:null,audio=inSourceBuffers(this.mediaSource,this.audioBuffer)?this.audioBuffer:null;return audio&&!video?this.audioBuffered():video&&!audio?this.videoBuffered():function(bufferA,bufferB){var start=null,end=null,arity=0,extents=[],ranges=[];if(!(bufferA&&bufferA.length&&bufferB&&bufferB.length))return videojs.createTimeRange();for(var count=bufferA.length;count--;)extents.push({time:bufferA.start(count),type:"start"}),extents.push({time:bufferA.end(count),type:"end"});for(count=bufferB.length;count--;)extents.push({time:bufferB.start(count),type:"start"}),extents.push({time:bufferB.end(count),type:"end"});for(extents.sort((function(a,b){return a.time-b.time})),count=0;count<extents.length;count++)"start"===extents[count].type?2==++arity&&(start=extents[count].time):"end"===extents[count].type&&1==--arity&&(end=extents[count].time),null!==start&&null!==end&&(ranges.push([start,end]),start=null,end=null);return videojs.createTimeRanges(ranges)}(this.audioBuffered(),this.videoBuffered())},_proto.setDuration=function(duration,doneFn){void 0===doneFn&&(doneFn=noop),pushQueue({type:"mediaSource",sourceUpdater:this,action:actions_duration(duration),name:"duration",doneFn:doneFn})},_proto.endOfStream=function(error,doneFn){void 0===error&&(error=null),void 0===doneFn&&(doneFn=noop),"string"!=typeof error&&(error=void 0),pushQueue({type:"mediaSource",sourceUpdater:this,action:actions_endOfStream(error),name:"endOfStream",doneFn:doneFn})},_proto.removeAudio=function(start,end,done){void 0===done&&(done=noop),this.audioBuffered().length&&0!==this.audioBuffered().end(0)?pushQueue({type:"audio",sourceUpdater:this,action:actions_remove(start,end),doneFn:done,name:"remove"}):done()},_proto.removeVideo=function(start,end,done){void 0===done&&(done=noop),this.videoBuffered().length&&0!==this.videoBuffered().end(0)?pushQueue({type:"video",sourceUpdater:this,action:actions_remove(start,end),doneFn:done,name:"remove"}):done()},_proto.updating=function(){return!(!_updating("audio",this)&&!_updating("video",this))},_proto.audioTimestampOffset=function(offset){return void 0!==offset&&this.audioBuffer&&this.audioTimestampOffset_!==offset&&(pushQueue({type:"audio",sourceUpdater:this,action:actions_timestampOffset(offset),name:"timestampOffset"}),this.audioTimestampOffset_=offset),this.audioTimestampOffset_},_proto.videoTimestampOffset=function(offset){return void 0!==offset&&this.videoBuffer&&this.videoTimestampOffset!==offset&&(pushQueue({type:"video",sourceUpdater:this,action:actions_timestampOffset(offset),name:"timestampOffset"}),this.videoTimestampOffset_=offset),this.videoTimestampOffset_},_proto.audioQueueCallback=function(callback){this.audioBuffer&&pushQueue({type:"audio",sourceUpdater:this,action:actions_callback(callback),name:"callback"})},_proto.videoQueueCallback=function(callback){this.videoBuffer&&pushQueue({type:"video",sourceUpdater:this,action:actions_callback(callback),name:"callback"})},_proto.dispose=function(){var _this4=this;this.trigger("dispose"),bufferTypes.forEach((function(type){_this4.abort(type),_this4.canRemoveSourceBuffer()?_this4.removeSourceBuffer(type):_this4[type+"QueueCallback"]((function(){return cleanupBuffer(type,_this4)}))})),this.videoAppendQueued_=!1,this.delayedAudioAppendQueue_.length=0,this.sourceopenListener_&&this.mediaSource.removeEventListener("sourceopen",this.sourceopenListener_),this.off()},SourceUpdater}(videojs.EventTarget),uint8ToUtf8=function(uintArray){return decodeURIComponent(escape(String.fromCharCode.apply(null,uintArray)))},VTT_LINE_TERMINATORS=new Uint8Array("\n\n".split("").map((function(_char3){return _char3.charCodeAt(0)}))),VTTSegmentLoader=function(_SegmentLoader){function VTTSegmentLoader(settings,options){var _this;return void 0===options&&(options={}),(_this=_SegmentLoader.call(this,settings,options)||this).mediaSource_=null,_this.subtitlesTrack_=null,_this.loaderType_="subtitle",_this.featuresNativeTextTracks_=settings.featuresNativeTextTracks,_this.shouldSaveSegmentTimingInfo_=!1,_this}inheritsLoose(VTTSegmentLoader,_SegmentLoader);var _proto=VTTSegmentLoader.prototype;return _proto.createTransmuxer_=function(){return null},_proto.buffered_=function(){if(!this.subtitlesTrack_||!this.subtitlesTrack_.cues||!this.subtitlesTrack_.cues.length)return videojs.createTimeRanges();var cues=this.subtitlesTrack_.cues,start=cues[0].startTime,end=cues[cues.length-1].startTime;return videojs.createTimeRanges([[start,end]])},_proto.initSegmentForMap=function(map,set){if(void 0===set&&(set=!1),!map)return null;var id=initSegmentId(map),storedMap=this.initSegments_[id];if(set&&!storedMap&&map.bytes){var combinedByteLength=VTT_LINE_TERMINATORS.byteLength+map.bytes.byteLength,combinedSegment=new Uint8Array(combinedByteLength);combinedSegment.set(map.bytes),combinedSegment.set(VTT_LINE_TERMINATORS,map.bytes.byteLength),this.initSegments_[id]=storedMap={resolvedUri:map.resolvedUri,byterange:map.byterange,bytes:combinedSegment}}return storedMap||map},_proto.couldBeginLoading_=function(){return this.playlist_&&this.subtitlesTrack_&&!this.paused()},_proto.init_=function(){return this.state="READY",this.resetEverything(),this.monitorBuffer_()},_proto.track=function(_track){return void 0===_track||(this.subtitlesTrack_=_track,"INIT"===this.state&&this.couldBeginLoading_()&&this.init_()),this.subtitlesTrack_},_proto.remove=function(start,end){removeCuesFromTrack(start,end,this.subtitlesTrack_)},_proto.fillBuffer_=function(){var _this2=this,segmentInfo=this.chooseNextRequest_();if(segmentInfo){if(null===this.syncController_.timestampOffsetForTimeline(segmentInfo.timeline)){return this.syncController_.one("timestampoffset",(function(){_this2.state="READY",_this2.paused()||_this2.monitorBuffer_()})),void(this.state="WAITING_ON_TIMELINE")}this.loadSegment_(segmentInfo)}},_proto.timestampOffsetForSegment_=function(){return null},_proto.chooseNextRequest_=function(){return this.skipEmptySegments_(_SegmentLoader.prototype.chooseNextRequest_.call(this))},_proto.skipEmptySegments_=function(segmentInfo){for(;segmentInfo&&segmentInfo.segment.empty;){if(segmentInfo.mediaIndex+1>=segmentInfo.playlist.segments.length){segmentInfo=null;break}segmentInfo=this.generateSegmentInfo_({playlist:segmentInfo.playlist,mediaIndex:segmentInfo.mediaIndex+1,startOfSegment:segmentInfo.startOfSegment+segmentInfo.duration,isSyncRequest:segmentInfo.isSyncRequest})}return segmentInfo},_proto.stopForError=function(error){this.error(error),this.state="READY",this.pause(),this.trigger("error")},_proto.segmentRequestFinished_=function(error,simpleSegment,result){var _this3=this;if(this.subtitlesTrack_){if(this.saveTransferStats_(simpleSegment.stats),!this.pendingSegment_)return this.state="READY",void(this.mediaRequestsAborted+=1);if(error)return error.code===REQUEST_ERRORS_TIMEOUT&&this.handleTimeout_(),error.code===REQUEST_ERRORS_ABORTED?this.mediaRequestsAborted+=1:this.mediaRequestsErrored+=1,void this.stopForError(error);var segmentInfo=this.pendingSegment_;this.saveBandwidthRelatedStats_(segmentInfo.duration,simpleSegment.stats),simpleSegment.key&&this.segmentKey(simpleSegment.key,!0),this.state="APPENDING",this.trigger("appending");var segment=segmentInfo.segment;if(segment.map&&(segment.map.bytes=simpleSegment.map.bytes),segmentInfo.bytes=simpleSegment.bytes,"function"!=typeof window.WebVTT&&this.subtitlesTrack_&&this.subtitlesTrack_.tech_){var loadHandler,errorHandler=function(){_this3.subtitlesTrack_.tech_.off("vttjsloaded",loadHandler),_this3.stopForError({message:"Error loading vtt.js"})};return loadHandler=function(){_this3.subtitlesTrack_.tech_.off("vttjserror",errorHandler),_this3.segmentRequestFinished_(error,simpleSegment,result)},this.state="WAITING_ON_VTTJS",this.subtitlesTrack_.tech_.one("vttjsloaded",loadHandler),void this.subtitlesTrack_.tech_.one("vttjserror",errorHandler)}segment.requested=!0;try{this.parseVTTCues_(segmentInfo)}catch(e){return void this.stopForError({message:e.message})}if(this.updateTimeMapping_(segmentInfo,this.syncController_.timelines[segmentInfo.timeline],this.playlist_),segmentInfo.cues.length?segmentInfo.timingInfo={start:segmentInfo.cues[0].startTime,end:segmentInfo.cues[segmentInfo.cues.length-1].endTime}:segmentInfo.timingInfo={start:segmentInfo.startOfSegment,end:segmentInfo.startOfSegment+segmentInfo.duration},segmentInfo.isSyncRequest)return this.trigger("syncinfoupdate"),this.pendingSegment_=null,void(this.state="READY");segmentInfo.byteLength=segmentInfo.bytes.byteLength,this.mediaSecondsLoaded+=segment.duration,segmentInfo.cues.forEach((function(cue){_this3.subtitlesTrack_.addCue(_this3.featuresNativeTextTracks_?new window.VTTCue(cue.startTime,cue.endTime,cue.text):cue)})),function(track){var cues=track.cues;if(cues)for(var i=0;i<cues.length;i++){for(var duplicates=[],occurrences=0,j=0;j<cues.length;j++)cues[i].startTime===cues[j].startTime&&cues[i].endTime===cues[j].endTime&&cues[i].text===cues[j].text&&++occurrences>1&&duplicates.push(cues[j]);duplicates.length&&duplicates.forEach((function(dupe){return track.removeCue(dupe)}))}}(this.subtitlesTrack_),this.handleAppendsDone_()}else this.state="READY"},_proto.handleData_=function(){},_proto.updateTimingInfoEnd_=function(){},_proto.parseVTTCues_=function(segmentInfo){var decoder,decodeBytesToString=!1;"function"==typeof window.TextDecoder?decoder=new window.TextDecoder("utf8"):(decoder=window.WebVTT.StringDecoder(),decodeBytesToString=!0);var parser=new window.WebVTT.Parser(window,window.vttjs,decoder);if(segmentInfo.cues=[],segmentInfo.timestampmap={MPEGTS:0,LOCAL:0},parser.oncue=segmentInfo.cues.push.bind(segmentInfo.cues),parser.ontimestampmap=function(map){segmentInfo.timestampmap=map},parser.onparsingerror=function(error){videojs.log.warn("Error encountered when parsing cues: "+error.message)},segmentInfo.segment.map){var mapData=segmentInfo.segment.map.bytes;decodeBytesToString&&(mapData=uint8ToUtf8(mapData)),parser.parse(mapData)}var segmentData=segmentInfo.bytes;decodeBytesToString&&(segmentData=uint8ToUtf8(segmentData)),parser.parse(segmentData),parser.flush()},_proto.updateTimeMapping_=function(segmentInfo,mappingObj,playlist){var segment=segmentInfo.segment;if(mappingObj)if(segmentInfo.cues.length){var timestampmap=segmentInfo.timestampmap,diff=timestampmap.MPEGTS/clock_1-timestampmap.LOCAL+mappingObj.mapping;if(segmentInfo.cues.forEach((function(cue){cue.startTime+=diff,cue.endTime+=diff})),!playlist.syncInfo){var firstStart=segmentInfo.cues[0].startTime,lastStart=segmentInfo.cues[segmentInfo.cues.length-1].startTime;playlist.syncInfo={mediaSequence:playlist.mediaSequence+segmentInfo.mediaIndex,time:Math.min(firstStart,lastStart-segment.duration)}}}else segment.empty=!0},VTTSegmentLoader}(SegmentLoader),findAdCue=function(track,mediaTime){for(var cues=track.cues,i=0;i<cues.length;i++){var cue=cues[i];if(mediaTime>=cue.adStartTime&&mediaTime<=cue.adEndTime)return cue}return null},syncPointStrategies=[{name:"VOD",run:function(syncController,playlist,duration,currentTimeline,currentTime){if(duration!==1/0){return{time:0,segmentIndex:0,partIndex:null}}return null}},{name:"ProgramDateTime",run:function(syncController,playlist,duration,currentTimeline,currentTime){if(!Object.keys(syncController.timelineToDatetimeMappings).length)return null;var syncPoint=null,lastDistance=null,partsAndSegments=getPartsAndSegments(playlist);currentTime=currentTime||0;for(var i=0;i<partsAndSegments.length;i++){var partAndSegment=partsAndSegments[playlist.endList||0===currentTime?i:partsAndSegments.length-(i+1)],segment=partAndSegment.segment,datetimeMapping=syncController.timelineToDatetimeMappings[segment.timeline];if(datetimeMapping&&segment.dateTimeObject){var start=segment.dateTimeObject.getTime()/1e3+datetimeMapping;if(segment.parts&&"number"==typeof partAndSegment.partIndex)for(var z=0;z<partAndSegment.partIndex;z++)start+=segment.parts[z].duration;var distance=Math.abs(currentTime-start);if(null!==lastDistance&&(0===distance||lastDistance<distance))break;lastDistance=distance,syncPoint={time:start,segmentIndex:partAndSegment.segmentIndex,partIndex:partAndSegment.partIndex}}}return syncPoint}},{name:"Segment",run:function(syncController,playlist,duration,currentTimeline,currentTime){var syncPoint=null,lastDistance=null;currentTime=currentTime||0;for(var partsAndSegments=getPartsAndSegments(playlist),i=0;i<partsAndSegments.length;i++){var partAndSegment=partsAndSegments[playlist.endList||0===currentTime?i:partsAndSegments.length-(i+1)],segment=partAndSegment.segment,start=partAndSegment.part&&partAndSegment.part.start||segment&&segment.start;if(segment.timeline===currentTimeline&&void 0!==start){var distance=Math.abs(currentTime-start);if(null!==lastDistance&&lastDistance<distance)break;(!syncPoint||null===lastDistance||lastDistance>=distance)&&(lastDistance=distance,syncPoint={time:start,segmentIndex:partAndSegment.segmentIndex,partIndex:partAndSegment.partIndex})}}return syncPoint}},{name:"Discontinuity",run:function(syncController,playlist,duration,currentTimeline,currentTime){var syncPoint=null;if(currentTime=currentTime||0,playlist.discontinuityStarts&&playlist.discontinuityStarts.length)for(var lastDistance=null,i=0;i<playlist.discontinuityStarts.length;i++){var segmentIndex=playlist.discontinuityStarts[i],discontinuity=playlist.discontinuitySequence+i+1,discontinuitySync=syncController.discontinuities[discontinuity];if(discontinuitySync){var distance=Math.abs(currentTime-discontinuitySync.time);if(null!==lastDistance&&lastDistance<distance)break;(!syncPoint||null===lastDistance||lastDistance>=distance)&&(lastDistance=distance,syncPoint={time:discontinuitySync.time,segmentIndex:segmentIndex,partIndex:null})}}return syncPoint}},{name:"Playlist",run:function(syncController,playlist,duration,currentTimeline,currentTime){return playlist.syncInfo?{time:playlist.syncInfo.time,segmentIndex:playlist.syncInfo.mediaSequence-playlist.mediaSequence,partIndex:null}:null}}],SyncController=function(_videojs$EventTarget){function SyncController(options){var _this;return(_this=_videojs$EventTarget.call(this)||this).timelines=[],_this.discontinuities=[],_this.timelineToDatetimeMappings={},_this.logger_=logger("SyncController"),_this}inheritsLoose(SyncController,_videojs$EventTarget);var _proto=SyncController.prototype;return _proto.getSyncPoint=function(playlist,duration,currentTimeline,currentTime){var syncPoints=this.runStrategies_(playlist,duration,currentTimeline,currentTime);return syncPoints.length?this.selectSyncPoint_(syncPoints,{key:"time",value:currentTime}):null},_proto.getExpiredTime=function(playlist,duration){if(!playlist||!playlist.segments)return null;var syncPoints=this.runStrategies_(playlist,duration,playlist.discontinuitySequence,0);if(!syncPoints.length)return null;var syncPoint=this.selectSyncPoint_(syncPoints,{key:"segmentIndex",value:0});return syncPoint.segmentIndex>0&&(syncPoint.time*=-1),Math.abs(syncPoint.time+sumDurations({defaultDuration:playlist.targetDuration,durationList:playlist.segments,startIndex:syncPoint.segmentIndex,endIndex:0}))},_proto.runStrategies_=function(playlist,duration,currentTimeline,currentTime){for(var syncPoints=[],i=0;i<syncPointStrategies.length;i++){var strategy=syncPointStrategies[i],syncPoint=strategy.run(this,playlist,duration,currentTimeline,currentTime);syncPoint&&(syncPoint.strategy=strategy.name,syncPoints.push({strategy:strategy.name,syncPoint:syncPoint}))}return syncPoints},_proto.selectSyncPoint_=function(syncPoints,target){for(var bestSyncPoint=syncPoints[0].syncPoint,bestDistance=Math.abs(syncPoints[0].syncPoint[target.key]-target.value),bestStrategy=syncPoints[0].strategy,i=1;i<syncPoints.length;i++){var newDistance=Math.abs(syncPoints[i].syncPoint[target.key]-target.value);newDistance<bestDistance&&(bestDistance=newDistance,bestSyncPoint=syncPoints[i].syncPoint,bestStrategy=syncPoints[i].strategy)}return this.logger_("syncPoint for ["+target.key+": "+target.value+"] chosen with strategy ["+bestStrategy+"]: [time:"+bestSyncPoint.time+", segmentIndex:"+bestSyncPoint.segmentIndex+("number"==typeof bestSyncPoint.partIndex?",partIndex:"+bestSyncPoint.partIndex:"")+"]"),bestSyncPoint},_proto.saveExpiredSegmentInfo=function(oldPlaylist,newPlaylist){var mediaSequenceDiff=newPlaylist.mediaSequence-oldPlaylist.mediaSequence;if(mediaSequenceDiff>86400)videojs.log.warn("Not saving expired segment info. Media sequence gap "+mediaSequenceDiff+" is too large.");else for(var i=mediaSequenceDiff-1;i>=0;i--){var lastRemovedSegment=oldPlaylist.segments[i];if(lastRemovedSegment&&void 0!==lastRemovedSegment.start){newPlaylist.syncInfo={mediaSequence:oldPlaylist.mediaSequence+i,time:lastRemovedSegment.start},this.logger_("playlist refresh sync: [time:"+newPlaylist.syncInfo.time+", mediaSequence: "+newPlaylist.syncInfo.mediaSequence+"]"),this.trigger("syncinfoupdate");break}}},_proto.setDateTimeMappingForStart=function(playlist){if(this.timelineToDatetimeMappings={},playlist.segments&&playlist.segments.length&&playlist.segments[0].dateTimeObject){var firstSegment=playlist.segments[0],playlistTimestamp=firstSegment.dateTimeObject.getTime()/1e3;this.timelineToDatetimeMappings[firstSegment.timeline]=-playlistTimestamp}},_proto.saveSegmentTimingInfo=function(_ref){var segmentInfo=_ref.segmentInfo,shouldSaveTimelineMapping=_ref.shouldSaveTimelineMapping,didCalculateSegmentTimeMapping=this.calculateSegmentTimeMapping_(segmentInfo,segmentInfo.timingInfo,shouldSaveTimelineMapping),segment=segmentInfo.segment;didCalculateSegmentTimeMapping&&(this.saveDiscontinuitySyncInfo_(segmentInfo),segmentInfo.playlist.syncInfo||(segmentInfo.playlist.syncInfo={mediaSequence:segmentInfo.playlist.mediaSequence+segmentInfo.mediaIndex,time:segment.start}));var dateTime=segment.dateTimeObject;segment.discontinuity&&shouldSaveTimelineMapping&&dateTime&&(this.timelineToDatetimeMappings[segment.timeline]=-dateTime.getTime()/1e3)},_proto.timestampOffsetForTimeline=function(timeline){return void 0===this.timelines[timeline]?null:this.timelines[timeline].time},_proto.mappingForTimeline=function(timeline){return void 0===this.timelines[timeline]?null:this.timelines[timeline].mapping},_proto.calculateSegmentTimeMapping_=function(segmentInfo,timingInfo,shouldSaveTimelineMapping){var start,end,segment=segmentInfo.segment,part=segmentInfo.part,mappingObj=this.timelines[segmentInfo.timeline];if("number"==typeof segmentInfo.timestampOffset)mappingObj={time:segmentInfo.startOfSegment,mapping:segmentInfo.startOfSegment-timingInfo.start},shouldSaveTimelineMapping&&(this.timelines[segmentInfo.timeline]=mappingObj,this.trigger("timestampoffset"),this.logger_("time mapping for timeline "+segmentInfo.timeline+": [time: "+mappingObj.time+"] [mapping: "+mappingObj.mapping+"]")),start=segmentInfo.startOfSegment,end=timingInfo.end+mappingObj.mapping;else{if(!mappingObj)return!1;start=timingInfo.start+mappingObj.mapping,end=timingInfo.end+mappingObj.mapping}return part&&(part.start=start,part.end=end),(!segment.start||start<segment.start)&&(segment.start=start),segment.end=end,!0},_proto.saveDiscontinuitySyncInfo_=function(segmentInfo){var playlist=segmentInfo.playlist,segment=segmentInfo.segment;if(segment.discontinuity)this.discontinuities[segment.timeline]={time:segment.start,accuracy:0};else if(playlist.discontinuityStarts&&playlist.discontinuityStarts.length)for(var i=0;i<playlist.discontinuityStarts.length;i++){var segmentIndex=playlist.discontinuityStarts[i],discontinuity=playlist.discontinuitySequence+i+1,mediaIndexDiff=segmentIndex-segmentInfo.mediaIndex,accuracy=Math.abs(mediaIndexDiff);if(!this.discontinuities[discontinuity]||this.discontinuities[discontinuity].accuracy>accuracy){var time=void 0;time=mediaIndexDiff<0?segment.start-sumDurations({defaultDuration:playlist.targetDuration,durationList:playlist.segments,startIndex:segmentInfo.mediaIndex,endIndex:segmentIndex}):segment.end+sumDurations({defaultDuration:playlist.targetDuration,durationList:playlist.segments,startIndex:segmentInfo.mediaIndex+1,endIndex:segmentIndex}),this.discontinuities[discontinuity]={time:time,accuracy:accuracy}}}},_proto.dispose=function(){this.trigger("dispose"),this.off()},SyncController}(videojs.EventTarget),TimelineChangeController=function(_videojs$EventTarget){function TimelineChangeController(){var _this;return(_this=_videojs$EventTarget.call(this)||this).pendingTimelineChanges_={},_this.lastTimelineChanges_={},_this}inheritsLoose(TimelineChangeController,_videojs$EventTarget);var _proto=TimelineChangeController.prototype;return _proto.clearPendingTimelineChange=function(type){this.pendingTimelineChanges_[type]=null,this.trigger("pendingtimelinechange")},_proto.pendingTimelineChange=function(_ref){var type=_ref.type,from=_ref.from,to=_ref.to;return"number"==typeof from&&"number"==typeof to&&(this.pendingTimelineChanges_[type]={type:type,from:from,to:to},this.trigger("pendingtimelinechange")),this.pendingTimelineChanges_[type]},_proto.lastTimelineChange=function(_ref2){var type=_ref2.type,from=_ref2.from,to=_ref2.to;return"number"==typeof from&&"number"==typeof to&&(this.lastTimelineChanges_[type]={type:type,from:from,to:to},delete this.pendingTimelineChanges_[type],this.trigger("timelinechange")),this.lastTimelineChanges_[type]},_proto.dispose=function(){this.trigger("dispose"),this.pendingTimelineChanges_={},this.lastTimelineChanges_={},this.off()},TimelineChangeController}(videojs.EventTarget),workerCode=transform(getWorkerString((function(){var commonjsGlobal="undefined"!=typeof globalThis?globalThis:"undefined"!=typeof window?window:"undefined"!=typeof global?global:"undefined"!=typeof self?self:{};function createCommonjsModule(fn,basedir,module){return fn(module={path:basedir,exports:{},require:function(path,base){return function(){throw new Error("Dynamic requires are not currently supported by @rollup/plugin-commonjs")}(null==base&&module.path)}},module.exports),module.exports}var createClass=createCommonjsModule((function(module){function _defineProperties(target,props){for(var i=0;i<props.length;i++){var descriptor=props[i];descriptor.enumerable=descriptor.enumerable||!1,descriptor.configurable=!0,"value"in descriptor&&(descriptor.writable=!0),Object.defineProperty(target,descriptor.key,descriptor)}}module.exports=function(Constructor,protoProps,staticProps){return protoProps&&_defineProperties(Constructor.prototype,protoProps),staticProps&&_defineProperties(Constructor,staticProps),Constructor},module.exports.default=module.exports,module.exports.__esModule=!0})),setPrototypeOf=createCommonjsModule((function(module){function _setPrototypeOf(o,p){return module.exports=_setPrototypeOf=Object.setPrototypeOf||function(o,p){return o.__proto__=p,o},module.exports.default=module.exports,module.exports.__esModule=!0,_setPrototypeOf(o,p)}module.exports=_setPrototypeOf,module.exports.default=module.exports,module.exports.__esModule=!0})),inheritsLoose=createCommonjsModule((function(module){module.exports=function(subClass,superClass){subClass.prototype=Object.create(superClass.prototype),subClass.prototype.constructor=subClass,setPrototypeOf(subClass,superClass)},module.exports.default=module.exports,module.exports.__esModule=!0})),Stream=function(){function Stream(){this.listeners={}}var _proto=Stream.prototype;return _proto.on=function(type,listener){this.listeners[type]||(this.listeners[type]=[]),this.listeners[type].push(listener)},_proto.off=function(type,listener){if(!this.listeners[type])return!1;var index=this.listeners[type].indexOf(listener);return this.listeners[type]=this.listeners[type].slice(0),this.listeners[type].splice(index,1),index>-1},_proto.trigger=function(type){var callbacks=this.listeners[type];if(callbacks)if(2===arguments.length)for(var length=callbacks.length,i=0;i<length;++i)callbacks[i].call(this,arguments[1]);else for(var args=Array.prototype.slice.call(arguments,1),_length=callbacks.length,_i=0;_i<_length;++_i)callbacks[_i].apply(this,args)},_proto.dispose=function(){this.listeners={}},_proto.pipe=function(destination){this.on("data",(function(data){destination.push(data)}))},Stream}();
-/*! @name aes-decrypter @version 3.1.3 @license Apache-2.0 */
-var win,aesTables=null,AES=function(){function AES(key){var i,j,tmp;aesTables||(aesTables=function(){var i,x,xInv,x2,x4,s,tEnc,tDec,tables=[[[],[],[],[],[]],[[],[],[],[],[]]],encTable=tables[0],decTable=tables[1],sbox=encTable[4],sboxInv=decTable[4],d=[],th=[];for(i=0;i<256;i++)th[(d[i]=i<<1^283*(i>>7))^i]=i;for(x=xInv=0;!sbox[x];x^=x2||1,xInv=th[xInv]||1)for(s=(s=xInv^xInv<<1^xInv<<2^xInv<<3^xInv<<4)>>8^255&s^99,sbox[x]=s,sboxInv[s]=x,tDec=16843009*d[x4=d[x2=d[x]]]^65537*x4^257*x2^16843008*x,tEnc=257*d[s]^16843008*s,i=0;i<4;i++)encTable[i][x]=tEnc=tEnc<<24^tEnc>>>8,decTable[i][s]=tDec=tDec<<24^tDec>>>8;for(i=0;i<5;i++)encTable[i]=encTable[i].slice(0),decTable[i]=decTable[i].slice(0);return tables}()),this._tables=[[aesTables[0][0].slice(),aesTables[0][1].slice(),aesTables[0][2].slice(),aesTables[0][3].slice(),aesTables[0][4].slice()],[aesTables[1][0].slice(),aesTables[1][1].slice(),aesTables[1][2].slice(),aesTables[1][3].slice(),aesTables[1][4].slice()]];var sbox=this._tables[0][4],decTable=this._tables[1],keyLen=key.length,rcon=1;if(4!==keyLen&&6!==keyLen&&8!==keyLen)throw new Error("Invalid aes key size");var encKey=key.slice(0),decKey=[];for(this._key=[encKey,decKey],i=keyLen;i<4*keyLen+28;i++)tmp=encKey[i-1],(i%keyLen==0||8===keyLen&&i%keyLen==4)&&(tmp=sbox[tmp>>>24]<<24^sbox[tmp>>16&255]<<16^sbox[tmp>>8&255]<<8^sbox[255&tmp],i%keyLen==0&&(tmp=tmp<<8^tmp>>>24^rcon<<24,rcon=rcon<<1^283*(rcon>>7))),encKey[i]=encKey[i-keyLen]^tmp;for(j=0;i;j++,i--)tmp=encKey[3&j?i:i-4],decKey[j]=i<=4||j<4?tmp:decTable[0][sbox[tmp>>>24]]^decTable[1][sbox[tmp>>16&255]]^decTable[2][sbox[tmp>>8&255]]^decTable[3][sbox[255&tmp]]}return AES.prototype.decrypt=function(encrypted0,encrypted1,encrypted2,encrypted3,out,offset){var a2,b2,c2,i,key=this._key[1],a=encrypted0^key[0],b=encrypted3^key[1],c=encrypted2^key[2],d=encrypted1^key[3],nInnerRounds=key.length/4-2,kIndex=4,table=this._tables[1],table0=table[0],table1=table[1],table2=table[2],table3=table[3],sbox=table[4];for(i=0;i<nInnerRounds;i++)a2=table0[a>>>24]^table1[b>>16&255]^table2[c>>8&255]^table3[255&d]^key[kIndex],b2=table0[b>>>24]^table1[c>>16&255]^table2[d>>8&255]^table3[255&a]^key[kIndex+1],c2=table0[c>>>24]^table1[d>>16&255]^table2[a>>8&255]^table3[255&b]^key[kIndex+2],d=table0[d>>>24]^table1[a>>16&255]^table2[b>>8&255]^table3[255&c]^key[kIndex+3],kIndex+=4,a=a2,b=b2,c=c2;for(i=0;i<4;i++)out[(3&-i)+offset]=sbox[a>>>24]<<24^sbox[b>>16&255]<<16^sbox[c>>8&255]<<8^sbox[255&d]^key[kIndex++],a2=a,a=b,b=c,c=d,d=a2},AES}(),AsyncStream=function(_Stream){function AsyncStream(){var _this;return(_this=_Stream.call(this,Stream)||this).jobs=[],_this.delay=1,_this.timeout_=null,_this}inheritsLoose(AsyncStream,_Stream);var _proto=AsyncStream.prototype;return _proto.processJob_=function(){this.jobs.shift()(),this.jobs.length?this.timeout_=setTimeout(this.processJob_.bind(this),this.delay):this.timeout_=null},_proto.push=function(job){this.jobs.push(job),this.timeout_||(this.timeout_=setTimeout(this.processJob_.bind(this),this.delay))},AsyncStream}(Stream),ntoh=function(word){return word<<24|(65280&word)<<8|(16711680&word)>>8|word>>>24},Decrypter=function(){function Decrypter(encrypted,key,initVector,done){var step=Decrypter.STEP,encrypted32=new Int32Array(encrypted.buffer),decrypted=new Uint8Array(encrypted.byteLength),i=0;for(this.asyncStream_=new AsyncStream,this.asyncStream_.push(this.decryptChunk_(encrypted32.subarray(i,i+step),key,initVector,decrypted)),i=step;i<encrypted32.length;i+=step)initVector=new Uint32Array([ntoh(encrypted32[i-4]),ntoh(encrypted32[i-3]),ntoh(encrypted32[i-2]),ntoh(encrypted32[i-1])]),this.asyncStream_.push(this.decryptChunk_(encrypted32.subarray(i,i+step),key,initVector,decrypted));this.asyncStream_.push((function(){
-/*! @name pkcs7 @version 1.0.4 @license Apache-2.0 */
-var padded;done(null,(padded=decrypted).subarray(0,padded.byteLength-padded[padded.byteLength-1]))}))}return Decrypter.prototype.decryptChunk_=function(encrypted,key,initVector,decrypted){return function(){var bytes=function(encrypted,key,initVector){var init0,init1,init2,init3,encrypted0,encrypted1,encrypted2,encrypted3,wordIx,encrypted32=new Int32Array(encrypted.buffer,encrypted.byteOffset,encrypted.byteLength>>2),decipher=new AES(Array.prototype.slice.call(key)),decrypted=new Uint8Array(encrypted.byteLength),decrypted32=new Int32Array(decrypted.buffer);for(init0=initVector[0],init1=initVector[1],init2=initVector[2],init3=initVector[3],wordIx=0;wordIx<encrypted32.length;wordIx+=4)encrypted0=ntoh(encrypted32[wordIx]),encrypted1=ntoh(encrypted32[wordIx+1]),encrypted2=ntoh(encrypted32[wordIx+2]),encrypted3=ntoh(encrypted32[wordIx+3]),decipher.decrypt(encrypted0,encrypted1,encrypted2,encrypted3,decrypted32,wordIx),decrypted32[wordIx]=ntoh(decrypted32[wordIx]^init0),decrypted32[wordIx+1]=ntoh(decrypted32[wordIx+1]^init1),decrypted32[wordIx+2]=ntoh(decrypted32[wordIx+2]^init2),decrypted32[wordIx+3]=ntoh(decrypted32[wordIx+3]^init3),init0=encrypted0,init1=encrypted1,init2=encrypted2,init3=encrypted3;return decrypted}(encrypted,key,initVector);decrypted.set(bytes,encrypted.byteOffset)}},createClass(Decrypter,null,[{key:"STEP",get:function(){return 32e3}}]),Decrypter}();win="undefined"!=typeof window?window:void 0!==commonjsGlobal?commonjsGlobal:"undefined"!=typeof self?self:{};var BigInt=win.BigInt||Number;BigInt("0x1"),BigInt("0x100"),BigInt("0x10000"),BigInt("0x1000000"),BigInt("0x100000000"),BigInt("0x10000000000"),BigInt("0x1000000000000"),BigInt("0x100000000000000"),BigInt("0x10000000000000000");var createTransferableMessage=function(message){var transferable={};return Object.keys(message).forEach((function(key){var obj,value=message[key];obj=value,("function"===ArrayBuffer.isView?ArrayBuffer.isView(obj):obj&&obj.buffer instanceof ArrayBuffer)?transferable[key]={bytes:value.buffer,byteOffset:value.byteOffset,byteLength:value.byteLength}:transferable[key]=value})),transferable};self.onmessage=function(event){var data=event.data,encrypted=new Uint8Array(data.encrypted.bytes,data.encrypted.byteOffset,data.encrypted.byteLength),key=new Uint32Array(data.key.bytes,data.key.byteOffset,data.key.byteLength/4),iv=new Uint32Array(data.iv.bytes,data.iv.byteOffset,data.iv.byteLength/4);new Decrypter(encrypted,key,iv,(function(err,bytes){self.postMessage(createTransferableMessage({source:data.source,decrypted:bytes}),[bytes.buffer])}))}}))),Decrypter=factory(workerCode),audioTrackKind_=function(properties){var kind=properties.default?"main":"alternative";return properties.characteristics&&properties.characteristics.indexOf("public.accessibility.describes-video")>=0&&(kind="main-desc"),kind},stopLoaders=function(segmentLoader,mediaType){segmentLoader.abort(),segmentLoader.pause(),mediaType&&mediaType.activePlaylistLoader&&(mediaType.activePlaylistLoader.pause(),mediaType.activePlaylistLoader=null)},startLoaders=function(playlistLoader,mediaType){mediaType.activePlaylistLoader=playlistLoader,playlistLoader.load()},onError={AUDIO:function(type,settings){return function(){var segmentLoader=settings.segmentLoaders[type],mediaType=settings.mediaTypes[type],blacklistCurrentPlaylist=settings.blacklistCurrentPlaylist;stopLoaders(segmentLoader,mediaType);var activeTrack=mediaType.activeTrack(),activeGroup=mediaType.activeGroup(),id=(activeGroup.filter((function(group){return group.default}))[0]||activeGroup[0]).id,defaultTrack=mediaType.tracks[id];if(activeTrack!==defaultTrack){for(var trackId in videojs.log.warn("Problem encountered loading the alternate audio track.Switching back to default."),mediaType.tracks)mediaType.tracks[trackId].enabled=mediaType.tracks[trackId]===defaultTrack;mediaType.onTrackChanged()}else blacklistCurrentPlaylist({message:"Problem encountered loading the default audio track."})}},SUBTITLES:function(type,settings){return function(){var segmentLoader=settings.segmentLoaders[type],mediaType=settings.mediaTypes[type];videojs.log.warn("Problem encountered loading the subtitle track.Disabling subtitle track."),stopLoaders(segmentLoader,mediaType);var track=mediaType.activeTrack();track&&(track.mode="disabled"),mediaType.onTrackChanged()}}},setupListeners={AUDIO:function(type,playlistLoader,settings){if(playlistLoader){var tech=settings.tech,requestOptions=settings.requestOptions,segmentLoader=settings.segmentLoaders[type];playlistLoader.on("loadedmetadata",(function(){var media=playlistLoader.media();segmentLoader.playlist(media,requestOptions),(!tech.paused()||media.endList&&"none"!==tech.preload())&&segmentLoader.load()})),playlistLoader.on("loadedplaylist",(function(){segmentLoader.playlist(playlistLoader.media(),requestOptions),tech.paused()||segmentLoader.load()})),playlistLoader.on("error",onError[type](type,settings))}},SUBTITLES:function(type,playlistLoader,settings){var tech=settings.tech,requestOptions=settings.requestOptions,segmentLoader=settings.segmentLoaders[type],mediaType=settings.mediaTypes[type];playlistLoader.on("loadedmetadata",(function(){var media=playlistLoader.media();segmentLoader.playlist(media,requestOptions),segmentLoader.track(mediaType.activeTrack()),(!tech.paused()||media.endList&&"none"!==tech.preload())&&segmentLoader.load()})),playlistLoader.on("loadedplaylist",(function(){segmentLoader.playlist(playlistLoader.media(),requestOptions),tech.paused()||segmentLoader.load()})),playlistLoader.on("error",onError[type](type,settings))}},initialize={AUDIO:function(type,settings){var vhs=settings.vhs,sourceType=settings.sourceType,segmentLoader=settings.segmentLoaders[type],requestOptions=settings.requestOptions,mediaGroups=settings.master.mediaGroups,_settings$mediaTypes$=settings.mediaTypes[type],groups=_settings$mediaTypes$.groups,tracks=_settings$mediaTypes$.tracks,logger_=_settings$mediaTypes$.logger_,masterPlaylistLoader=settings.masterPlaylistLoader,audioOnlyMaster=isAudioOnly(masterPlaylistLoader.master);for(var groupId in mediaGroups[type]&&0!==Object.keys(mediaGroups[type]).length||(mediaGroups[type]={main:{default:{default:!0}}},audioOnlyMaster&&(mediaGroups[type].main.default.playlists=masterPlaylistLoader.master.playlists)),mediaGroups[type])for(var variantLabel in groups[groupId]||(groups[groupId]=[]),mediaGroups[type][groupId]){var properties=mediaGroups[type][groupId][variantLabel],playlistLoader=void 0;if(audioOnlyMaster?(logger_("AUDIO group '"+groupId+"' label '"+variantLabel+"' is a master playlist"),properties.isMasterPlaylist=!0,playlistLoader=null):playlistLoader="vhs-json"===sourceType&&properties.playlists?new PlaylistLoader(properties.playlists[0],vhs,requestOptions):properties.resolvedUri?new PlaylistLoader(properties.resolvedUri,vhs,requestOptions):properties.playlists&&"dash"===sourceType?new DashPlaylistLoader(properties.playlists[0],vhs,requestOptions,masterPlaylistLoader):null,properties=videojs.mergeOptions({id:variantLabel,playlistLoader:playlistLoader},properties),setupListeners[type](type,properties.playlistLoader,settings),groups[groupId].push(properties),void 0===tracks[variantLabel]){var track=new videojs.AudioTrack({id:variantLabel,kind:audioTrackKind_(properties),enabled:!1,language:properties.language,default:properties.default,label:variantLabel});tracks[variantLabel]=track}}segmentLoader.on("error",onError[type](type,settings))},SUBTITLES:function(type,settings){var tech=settings.tech,vhs=settings.vhs,sourceType=settings.sourceType,segmentLoader=settings.segmentLoaders[type],requestOptions=settings.requestOptions,mediaGroups=settings.master.mediaGroups,_settings$mediaTypes$2=settings.mediaTypes[type],groups=_settings$mediaTypes$2.groups,tracks=_settings$mediaTypes$2.tracks,masterPlaylistLoader=settings.masterPlaylistLoader;for(var groupId in mediaGroups[type])for(var variantLabel in groups[groupId]||(groups[groupId]=[]),mediaGroups[type][groupId])if(!mediaGroups[type][groupId][variantLabel].forced){var properties=mediaGroups[type][groupId][variantLabel],playlistLoader=void 0;if("hls"===sourceType)playlistLoader=new PlaylistLoader(properties.resolvedUri,vhs,requestOptions);else if("dash"===sourceType){if(!properties.playlists.filter((function(p){return p.excludeUntil!==1/0})).length)return;playlistLoader=new DashPlaylistLoader(properties.playlists[0],vhs,requestOptions,masterPlaylistLoader)}else"vhs-json"===sourceType&&(playlistLoader=new PlaylistLoader(properties.playlists?properties.playlists[0]:properties.resolvedUri,vhs,requestOptions));if(properties=videojs.mergeOptions({id:variantLabel,playlistLoader:playlistLoader},properties),setupListeners[type](type,properties.playlistLoader,settings),groups[groupId].push(properties),void 0===tracks[variantLabel]){var track=tech.addRemoteTextTrack({id:variantLabel,kind:"subtitles",default:properties.default&&properties.autoselect,language:properties.language,label:variantLabel},!1).track;tracks[variantLabel]=track}}segmentLoader.on("error",onError[type](type,settings))},"CLOSED-CAPTIONS":function(type,settings){var tech=settings.tech,mediaGroups=settings.master.mediaGroups,_settings$mediaTypes$3=settings.mediaTypes[type],groups=_settings$mediaTypes$3.groups,tracks=_settings$mediaTypes$3.tracks;for(var groupId in mediaGroups[type])for(var variantLabel in groups[groupId]||(groups[groupId]=[]),mediaGroups[type][groupId]){var properties=mediaGroups[type][groupId][variantLabel];if(/^(?:CC|SERVICE)/.test(properties.instreamId)){var captionServices=tech.options_.vhs&&tech.options_.vhs.captionServices||{},newProps={label:variantLabel,language:properties.language,instreamId:properties.instreamId,default:properties.default&&properties.autoselect};if(captionServices[newProps.instreamId]&&(newProps=videojs.mergeOptions(newProps,captionServices[newProps.instreamId])),void 0===newProps.default&&delete newProps.default,groups[groupId].push(videojs.mergeOptions({id:variantLabel},properties)),void 0===tracks[variantLabel]){var track=tech.addRemoteTextTrack({id:newProps.instreamId,kind:"captions",default:newProps.default,language:newProps.language,label:newProps.label},!1).track;tracks[variantLabel]=track}}}}},groupMatch=function groupMatch(list,media){for(var i=0;i<list.length;i++){if(playlistMatch(media,list[i]))return!0;if(list[i].playlists&&groupMatch(list[i].playlists,media))return!0}return!1},activeTrack={AUDIO:function(type,settings){return function(){var tracks=settings.mediaTypes[type].tracks;for(var id in tracks)if(tracks[id].enabled)return tracks[id];return null}},SUBTITLES:function(type,settings){return function(){var tracks=settings.mediaTypes[type].tracks;for(var id in tracks)if("showing"===tracks[id].mode||"hidden"===tracks[id].mode)return tracks[id];return null}}},setupMediaGroups=function(settings){["AUDIO","SUBTITLES","CLOSED-CAPTIONS"].forEach((function(type){initialize[type](type,settings)}));var mediaTypes=settings.mediaTypes,masterPlaylistLoader=settings.masterPlaylistLoader,tech=settings.tech,vhs=settings.vhs,_settings$segmentLoad3=settings.segmentLoaders,audioSegmentLoader=_settings$segmentLoad3.AUDIO,mainSegmentLoader=_settings$segmentLoad3.main;["AUDIO","SUBTITLES"].forEach((function(type){mediaTypes[type].activeGroup=function(type,settings){return function(track){var masterPlaylistLoader=settings.masterPlaylistLoader,groups=settings.mediaTypes[type].groups,media=masterPlaylistLoader.media();if(!media)return null;var variants=null;media.attributes[type]&&(variants=groups[media.attributes[type]]);var groupKeys=Object.keys(groups);if(!variants)if("AUDIO"===type&&groupKeys.length>1&&isAudioOnly(settings.master))for(var i=0;i<groupKeys.length;i++){var groupPropertyList=groups[groupKeys[i]];if(groupMatch(groupPropertyList,media)){variants=groupPropertyList;break}}else groups.main?variants=groups.main:1===groupKeys.length&&(variants=groups[groupKeys[0]]);return void 0===track?variants:null!==track&&variants&&variants.filter((function(props){return props.id===track.id}))[0]||null}}(type,settings),mediaTypes[type].activeTrack=activeTrack[type](type,settings),mediaTypes[type].onGroupChanged=function(type,settings){return function(){var _settings$segmentLoad=settings.segmentLoaders,segmentLoader=_settings$segmentLoad[type],mainSegmentLoader=_settings$segmentLoad.main,mediaType=settings.mediaTypes[type],activeTrack=mediaType.activeTrack(),activeGroup=mediaType.getActiveGroup(),previousActiveLoader=mediaType.activePlaylistLoader,lastGroup=mediaType.lastGroup_;activeGroup&&lastGroup&&activeGroup.id===lastGroup.id||(mediaType.lastGroup_=activeGroup,mediaType.lastTrack_=activeTrack,stopLoaders(segmentLoader,mediaType),activeGroup&&!activeGroup.isMasterPlaylist&&(activeGroup.playlistLoader?(segmentLoader.resyncLoader(),startLoaders(activeGroup.playlistLoader,mediaType)):previousActiveLoader&&mainSegmentLoader.resetEverything()))}}(type,settings),mediaTypes[type].onGroupChanging=function(type,settings){return function(){var segmentLoader=settings.segmentLoaders[type];settings.mediaTypes[type].lastGroup_=null,segmentLoader.abort(),segmentLoader.pause()}}(type,settings),mediaTypes[type].onTrackChanged=function(type,settings){return function(){var masterPlaylistLoader=settings.masterPlaylistLoader,_settings$segmentLoad2=settings.segmentLoaders,segmentLoader=_settings$segmentLoad2[type],mainSegmentLoader=_settings$segmentLoad2.main,mediaType=settings.mediaTypes[type],activeTrack=mediaType.activeTrack(),activeGroup=mediaType.getActiveGroup(),previousActiveLoader=mediaType.activePlaylistLoader,lastTrack=mediaType.lastTrack_;if((!lastTrack||!activeTrack||lastTrack.id!==activeTrack.id)&&(mediaType.lastGroup_=activeGroup,mediaType.lastTrack_=activeTrack,stopLoaders(segmentLoader,mediaType),activeGroup)){if(activeGroup.isMasterPlaylist){if(!activeTrack||!lastTrack||activeTrack.id===lastTrack.id)return;var mpc=settings.vhs.masterPlaylistController_,newPlaylist=mpc.selectPlaylist();if(mpc.media()===newPlaylist)return;return mediaType.logger_("track change. Switching master audio from "+lastTrack.id+" to "+activeTrack.id),masterPlaylistLoader.pause(),mainSegmentLoader.resetEverything(),void mpc.fastQualityChange_(newPlaylist)}if("AUDIO"===type){if(!activeGroup.playlistLoader)return mainSegmentLoader.setAudio(!0),void mainSegmentLoader.resetEverything();segmentLoader.setAudio(!0),mainSegmentLoader.setAudio(!1)}previousActiveLoader!==activeGroup.playlistLoader?(segmentLoader.track&&segmentLoader.track(activeTrack),segmentLoader.resetEverything(),startLoaders(activeGroup.playlistLoader,mediaType)):startLoaders(activeGroup.playlistLoader,mediaType)}}}(type,settings),mediaTypes[type].getActiveGroup=function(type,_ref){var mediaTypes=_ref.mediaTypes;return function(){var activeTrack_=mediaTypes[type].activeTrack();return activeTrack_?mediaTypes[type].activeGroup(activeTrack_):null}}(type,settings)}));var audioGroup=mediaTypes.AUDIO.activeGroup();if(audioGroup){var groupId=(audioGroup.filter((function(group){return group.default}))[0]||audioGroup[0]).id;mediaTypes.AUDIO.tracks[groupId].enabled=!0,mediaTypes.AUDIO.onGroupChanged(),mediaTypes.AUDIO.onTrackChanged(),mediaTypes.AUDIO.getActiveGroup().playlistLoader?(mainSegmentLoader.setAudio(!1),audioSegmentLoader.setAudio(!0)):mainSegmentLoader.setAudio(!0)}masterPlaylistLoader.on("mediachange",(function(){["AUDIO","SUBTITLES"].forEach((function(type){return mediaTypes[type].onGroupChanged()}))})),masterPlaylistLoader.on("mediachanging",(function(){["AUDIO","SUBTITLES"].forEach((function(type){return mediaTypes[type].onGroupChanging()}))}));var onAudioTrackChanged=function(){mediaTypes.AUDIO.onTrackChanged(),tech.trigger({type:"usage",name:"vhs-audio-change"}),tech.trigger({type:"usage",name:"hls-audio-change"})};for(var id in tech.audioTracks().addEventListener("change",onAudioTrackChanged),tech.remoteTextTracks().addEventListener("change",mediaTypes.SUBTITLES.onTrackChanged),vhs.on("dispose",(function(){tech.audioTracks().removeEventListener("change",onAudioTrackChanged),tech.remoteTextTracks().removeEventListener("change",mediaTypes.SUBTITLES.onTrackChanged)})),tech.clearTracks("audio"),mediaTypes.AUDIO.tracks)tech.audioTracks().addTrack(mediaTypes.AUDIO.tracks[id])},loaderStats=["mediaRequests","mediaRequestsAborted","mediaRequestsTimedout","mediaRequestsErrored","mediaTransferDuration","mediaBytesTransferred","mediaAppends"],sumLoaderStat=function(stat){return this.audioSegmentLoader_[stat]+this.mainSegmentLoader_[stat]},MasterPlaylistController=function(_videojs$EventTarget){function MasterPlaylistController(options){var _this;_this=_videojs$EventTarget.call(this)||this;var src=options.src,handleManifestRedirects=options.handleManifestRedirects,withCredentials=options.withCredentials,tech=options.tech,bandwidth=options.bandwidth,externVhs=options.externVhs,useCueTags=options.useCueTags,blacklistDuration=options.blacklistDuration,enableLowInitialPlaylist=options.enableLowInitialPlaylist,sourceType=options.sourceType,cacheEncryptionKeys=options.cacheEncryptionKeys,experimentalBufferBasedABR=options.experimentalBufferBasedABR,experimentalLeastPixelDiffSelector=options.experimentalLeastPixelDiffSelector,captionServices=options.captionServices;if(!src)throw new Error("A non-empty playlist URL or JSON manifest string is required");var maxPlaylistRetries=options.maxPlaylistRetries;null==maxPlaylistRetries&&(maxPlaylistRetries=1/0),Vhs$1=externVhs,_this.experimentalBufferBasedABR=Boolean(experimentalBufferBasedABR),_this.experimentalLeastPixelDiffSelector=Boolean(experimentalLeastPixelDiffSelector),_this.withCredentials=withCredentials,_this.tech_=tech,_this.vhs_=tech.vhs,_this.sourceType_=sourceType,_this.useCueTags_=useCueTags,_this.blacklistDuration=blacklistDuration,_this.maxPlaylistRetries=maxPlaylistRetries,_this.enableLowInitialPlaylist=enableLowInitialPlaylist,_this.useCueTags_&&(_this.cueTagsTrack_=_this.tech_.addTextTrack("metadata","ad-cues"),_this.cueTagsTrack_.inBandMetadataTrackDispatchType=""),_this.requestOptions_={withCredentials:withCredentials,handleManifestRedirects:handleManifestRedirects,maxPlaylistRetries:maxPlaylistRetries,timeout:null},_this.on("error",_this.pauseLoading),_this.mediaTypes_=function(){var mediaTypes={};return["AUDIO","SUBTITLES","CLOSED-CAPTIONS"].forEach((function(type){mediaTypes[type]={groups:{},tracks:{},activePlaylistLoader:null,activeGroup:noop,activeTrack:noop,getActiveGroup:noop,onGroupChanged:noop,onTrackChanged:noop,lastTrack_:null,logger_:logger("MediaGroups["+type+"]")}})),mediaTypes}(),_this.mediaSource=new window.MediaSource,_this.handleDurationChange_=_this.handleDurationChange_.bind(assertThisInitialized(_this)),_this.handleSourceOpen_=_this.handleSourceOpen_.bind(assertThisInitialized(_this)),_this.handleSourceEnded_=_this.handleSourceEnded_.bind(assertThisInitialized(_this)),_this.mediaSource.addEventListener("durationchange",_this.handleDurationChange_),_this.mediaSource.addEventListener("sourceopen",_this.handleSourceOpen_),_this.mediaSource.addEventListener("sourceended",_this.handleSourceEnded_),_this.seekable_=videojs.createTimeRanges(),_this.hasPlayed_=!1,_this.syncController_=new SyncController(options),_this.segmentMetadataTrack_=tech.addRemoteTextTrack({kind:"metadata",label:"segment-metadata"},!1).track,_this.decrypter_=new Decrypter,_this.sourceUpdater_=new SourceUpdater(_this.mediaSource),_this.inbandTextTracks_={},_this.timelineChangeController_=new TimelineChangeController;var segmentLoaderSettings={vhs:_this.vhs_,parse708captions:options.parse708captions,useDtsForTimestampOffset:options.useDtsForTimestampOffset,captionServices:captionServices,mediaSource:_this.mediaSource,currentTime:_this.tech_.currentTime.bind(_this.tech_),seekable:function(){return _this.seekable()},seeking:function(){return _this.tech_.seeking()},duration:function(){return _this.duration()},hasPlayed:function(){return _this.hasPlayed_},goalBufferLength:function(){return _this.goalBufferLength()},bandwidth:bandwidth,syncController:_this.syncController_,decrypter:_this.decrypter_,sourceType:_this.sourceType_,inbandTextTracks:_this.inbandTextTracks_,cacheEncryptionKeys:cacheEncryptionKeys,sourceUpdater:_this.sourceUpdater_,timelineChangeController:_this.timelineChangeController_,experimentalExactManifestTimings:options.experimentalExactManifestTimings};_this.masterPlaylistLoader_="dash"===_this.sourceType_?new DashPlaylistLoader(src,_this.vhs_,_this.requestOptions_):new PlaylistLoader(src,_this.vhs_,_this.requestOptions_),_this.setupMasterPlaylistLoaderListeners_(),_this.mainSegmentLoader_=new SegmentLoader(videojs.mergeOptions(segmentLoaderSettings,{segmentMetadataTrack:_this.segmentMetadataTrack_,loaderType:"main"}),options),_this.audioSegmentLoader_=new SegmentLoader(videojs.mergeOptions(segmentLoaderSettings,{loaderType:"audio"}),options),_this.subtitleSegmentLoader_=new VTTSegmentLoader(videojs.mergeOptions(segmentLoaderSettings,{loaderType:"vtt",featuresNativeTextTracks:_this.tech_.featuresNativeTextTracks}),options),_this.setupSegmentLoaderListeners_(),_this.experimentalBufferBasedABR&&(_this.masterPlaylistLoader_.one("loadedplaylist",(function(){return _this.startABRTimer_()})),_this.tech_.on("pause",(function(){return _this.stopABRTimer_()})),_this.tech_.on("play",(function(){return _this.startABRTimer_()}))),loaderStats.forEach((function(stat){_this[stat+"_"]=sumLoaderStat.bind(assertThisInitialized(_this),stat)})),_this.logger_=logger("MPC"),_this.triggeredFmp4Usage=!1,"none"===_this.tech_.preload()?(_this.loadOnPlay_=function(){_this.loadOnPlay_=null,_this.masterPlaylistLoader_.load()},_this.tech_.one("play",_this.loadOnPlay_)):_this.masterPlaylistLoader_.load(),_this.timeToLoadedData__=-1,_this.mainAppendsToLoadedData__=-1,_this.audioAppendsToLoadedData__=-1;var event="none"===_this.tech_.preload()?"play":"loadstart";return _this.tech_.one(event,(function(){var timeToLoadedDataStart=Date.now();_this.tech_.one("loadeddata",(function(){_this.timeToLoadedData__=Date.now()-timeToLoadedDataStart,_this.mainAppendsToLoadedData__=_this.mainSegmentLoader_.mediaAppends,_this.audioAppendsToLoadedData__=_this.audioSegmentLoader_.mediaAppends}))})),_this}inheritsLoose(MasterPlaylistController,_videojs$EventTarget);var _proto=MasterPlaylistController.prototype;return _proto.mainAppendsToLoadedData_=function(){return this.mainAppendsToLoadedData__},_proto.audioAppendsToLoadedData_=function(){return this.audioAppendsToLoadedData__},_proto.appendsToLoadedData_=function(){var main=this.mainAppendsToLoadedData_(),audio=this.audioAppendsToLoadedData_();return-1===main||-1===audio?-1:main+audio},_proto.timeToLoadedData_=function(){return this.timeToLoadedData__},_proto.checkABR_=function(){var nextPlaylist=this.selectPlaylist();nextPlaylist&&this.shouldSwitchToMedia_(nextPlaylist)&&this.switchMedia_(nextPlaylist,"abr")},_proto.switchMedia_=function(playlist,cause,delay){var oldMedia=this.media(),oldId=oldMedia&&(oldMedia.id||oldMedia.uri),newId=playlist.id||playlist.uri;oldId&&oldId!==newId&&(this.logger_("switch media "+oldId+" -> "+newId+" from "+cause),this.tech_.trigger({type:"usage",name:"vhs-rendition-change-"+cause})),this.masterPlaylistLoader_.media(playlist,delay)},_proto.startABRTimer_=function(){var _this2=this;this.stopABRTimer_(),this.abrTimer_=window.setInterval((function(){return _this2.checkABR_()}),250)},_proto.stopABRTimer_=function(){this.tech_.scrubbing&&this.tech_.scrubbing()||(window.clearInterval(this.abrTimer_),this.abrTimer_=null)},_proto.getAudioTrackPlaylists_=function(){var master=this.master(),defaultPlaylists=master&&master.playlists||[];if(!master||!master.mediaGroups||!master.mediaGroups.AUDIO)return defaultPlaylists;var track,AUDIO=master.mediaGroups.AUDIO,groupKeys=Object.keys(AUDIO);if(Object.keys(this.mediaTypes_.AUDIO.groups).length)track=this.mediaTypes_.AUDIO.activeTrack();else{var defaultGroup=AUDIO.main||groupKeys.length&&AUDIO[groupKeys[0]];for(var label in defaultGroup)if(defaultGroup[label].default){track={label:label};break}}if(!track)return defaultPlaylists;var playlists=[];for(var group in AUDIO)if(AUDIO[group][track.label]){var properties=AUDIO[group][track.label];if(properties.playlists&&properties.playlists.length)playlists.push.apply(playlists,properties.playlists);else if(properties.uri)playlists.push(properties);else if(master.playlists.length)for(var i=0;i<master.playlists.length;i++){var playlist=master.playlists[i];playlist.attributes&&playlist.attributes.AUDIO&&playlist.attributes.AUDIO===group&&playlists.push(playlist)}}return playlists.length?playlists:defaultPlaylists},_proto.setupMasterPlaylistLoaderListeners_=function(){var _this3=this;this.masterPlaylistLoader_.on("loadedmetadata",(function(){var media=_this3.masterPlaylistLoader_.media(),requestTimeout=1.5*media.targetDuration*1e3;isLowestEnabledRendition(_this3.masterPlaylistLoader_.master,_this3.masterPlaylistLoader_.media())?_this3.requestOptions_.timeout=0:_this3.requestOptions_.timeout=requestTimeout,media.endList&&"none"!==_this3.tech_.preload()&&(_this3.mainSegmentLoader_.playlist(media,_this3.requestOptions_),_this3.mainSegmentLoader_.load()),setupMediaGroups({sourceType:_this3.sourceType_,segmentLoaders:{AUDIO:_this3.audioSegmentLoader_,SUBTITLES:_this3.subtitleSegmentLoader_,main:_this3.mainSegmentLoader_},tech:_this3.tech_,requestOptions:_this3.requestOptions_,masterPlaylistLoader:_this3.masterPlaylistLoader_,vhs:_this3.vhs_,master:_this3.master(),mediaTypes:_this3.mediaTypes_,blacklistCurrentPlaylist:_this3.blacklistCurrentPlaylist.bind(_this3)}),_this3.triggerPresenceUsage_(_this3.master(),media),_this3.setupFirstPlay(),!_this3.mediaTypes_.AUDIO.activePlaylistLoader||_this3.mediaTypes_.AUDIO.activePlaylistLoader.media()?_this3.trigger("selectedinitialmedia"):_this3.mediaTypes_.AUDIO.activePlaylistLoader.one("loadedmetadata",(function(){_this3.trigger("selectedinitialmedia")}))})),this.masterPlaylistLoader_.on("loadedplaylist",(function(){_this3.loadOnPlay_&&_this3.tech_.off("play",_this3.loadOnPlay_);var updatedPlaylist=_this3.masterPlaylistLoader_.media();if(!updatedPlaylist){var selectedMedia;if(_this3.excludeUnsupportedVariants_(),_this3.enableLowInitialPlaylist&&(selectedMedia=_this3.selectInitialPlaylist()),selectedMedia||(selectedMedia=_this3.selectPlaylist()),!selectedMedia||!_this3.shouldSwitchToMedia_(selectedMedia))return;if(_this3.initialMedia_=selectedMedia,_this3.switchMedia_(_this3.initialMedia_,"initial"),!("vhs-json"===_this3.sourceType_&&_this3.initialMedia_.segments))return;updatedPlaylist=_this3.initialMedia_}_this3.handleUpdatedMediaPlaylist(updatedPlaylist)})),this.masterPlaylistLoader_.on("error",(function(){_this3.blacklistCurrentPlaylist(_this3.masterPlaylistLoader_.error)})),this.masterPlaylistLoader_.on("mediachanging",(function(){_this3.mainSegmentLoader_.abort(),_this3.mainSegmentLoader_.pause()})),this.masterPlaylistLoader_.on("mediachange",(function(){var media=_this3.masterPlaylistLoader_.media(),requestTimeout=1.5*media.targetDuration*1e3;isLowestEnabledRendition(_this3.masterPlaylistLoader_.master,_this3.masterPlaylistLoader_.media())?_this3.requestOptions_.timeout=0:_this3.requestOptions_.timeout=requestTimeout,_this3.mainSegmentLoader_.playlist(media,_this3.requestOptions_),_this3.mainSegmentLoader_.load(),_this3.tech_.trigger({type:"mediachange",bubbles:!0})})),this.masterPlaylistLoader_.on("playlistunchanged",(function(){var updatedPlaylist=_this3.masterPlaylistLoader_.media();"playlist-unchanged"!==updatedPlaylist.lastExcludeReason_&&(_this3.stuckAtPlaylistEnd_(updatedPlaylist)&&(_this3.blacklistCurrentPlaylist({message:"Playlist no longer updating.",reason:"playlist-unchanged"}),_this3.tech_.trigger("playliststuck")))})),this.masterPlaylistLoader_.on("renditiondisabled",(function(){_this3.tech_.trigger({type:"usage",name:"vhs-rendition-disabled"}),_this3.tech_.trigger({type:"usage",name:"hls-rendition-disabled"})})),this.masterPlaylistLoader_.on("renditionenabled",(function(){_this3.tech_.trigger({type:"usage",name:"vhs-rendition-enabled"}),_this3.tech_.trigger({type:"usage",name:"hls-rendition-enabled"})}))},_proto.handleUpdatedMediaPlaylist=function(updatedPlaylist){this.useCueTags_&&this.updateAdCues_(updatedPlaylist),this.mainSegmentLoader_.playlist(updatedPlaylist,this.requestOptions_),this.updateDuration(!updatedPlaylist.endList),this.tech_.paused()||(this.mainSegmentLoader_.load(),this.audioSegmentLoader_&&this.audioSegmentLoader_.load())},_proto.triggerPresenceUsage_=function(master,media){var mediaGroups=master.mediaGroups||{},defaultDemuxed=!0,audioGroupKeys=Object.keys(mediaGroups.AUDIO);for(var mediaGroup in mediaGroups.AUDIO)for(var label in mediaGroups.AUDIO[mediaGroup]){mediaGroups.AUDIO[mediaGroup][label].uri||(defaultDemuxed=!1)}defaultDemuxed&&(this.tech_.trigger({type:"usage",name:"vhs-demuxed"}),this.tech_.trigger({type:"usage",name:"hls-demuxed"})),Object.keys(mediaGroups.SUBTITLES).length&&(this.tech_.trigger({type:"usage",name:"vhs-webvtt"}),this.tech_.trigger({type:"usage",name:"hls-webvtt"})),Vhs$1.Playlist.isAes(media)&&(this.tech_.trigger({type:"usage",name:"vhs-aes"}),this.tech_.trigger({type:"usage",name:"hls-aes"})),audioGroupKeys.length&&Object.keys(mediaGroups.AUDIO[audioGroupKeys[0]]).length>1&&(this.tech_.trigger({type:"usage",name:"vhs-alternate-audio"}),this.tech_.trigger({type:"usage",name:"hls-alternate-audio"})),this.useCueTags_&&(this.tech_.trigger({type:"usage",name:"vhs-playlist-cue-tags"}),this.tech_.trigger({type:"usage",name:"hls-playlist-cue-tags"}))},_proto.shouldSwitchToMedia_=function(nextPlaylist){var currentPlaylist=this.masterPlaylistLoader_.media()||this.masterPlaylistLoader_.pendingMedia_,currentTime=this.tech_.currentTime(),bufferLowWaterLine=this.bufferLowWaterLine(),bufferHighWaterLine=this.bufferHighWaterLine();return function(_ref){var currentPlaylist=_ref.currentPlaylist,buffered=_ref.buffered,currentTime=_ref.currentTime,nextPlaylist=_ref.nextPlaylist,bufferLowWaterLine=_ref.bufferLowWaterLine,bufferHighWaterLine=_ref.bufferHighWaterLine,duration=_ref.duration,experimentalBufferBasedABR=_ref.experimentalBufferBasedABR,log=_ref.log;if(!nextPlaylist)return videojs.log.warn("We received no playlist to switch to. Please check your stream."),!1;var sharedLogLine="allowing switch "+(currentPlaylist&&currentPlaylist.id||"null")+" -> "+nextPlaylist.id;if(!currentPlaylist)return log(sharedLogLine+" as current playlist is not set"),!0;if(nextPlaylist.id===currentPlaylist.id)return!1;var isBuffered=Boolean(findRange(buffered,currentTime).length);if(!currentPlaylist.endList)return isBuffered||"number"!=typeof currentPlaylist.partTargetDuration?(log(sharedLogLine+" as current playlist is live"),!0):(log("not "+sharedLogLine+" as current playlist is live llhls, but currentTime isn't in buffered."),!1);var forwardBuffer=timeAheadOf(buffered,currentTime),maxBufferLowWaterLine=experimentalBufferBasedABR?Config.EXPERIMENTAL_MAX_BUFFER_LOW_WATER_LINE:Config.MAX_BUFFER_LOW_WATER_LINE;if(duration<maxBufferLowWaterLine)return log(sharedLogLine+" as duration < max low water line ("+duration+" < "+maxBufferLowWaterLine+")"),!0;var nextBandwidth=nextPlaylist.attributes.BANDWIDTH,currBandwidth=currentPlaylist.attributes.BANDWIDTH;if(nextBandwidth<currBandwidth&&(!experimentalBufferBasedABR||forwardBuffer<bufferHighWaterLine)){var logLine=sharedLogLine+" as next bandwidth < current bandwidth ("+nextBandwidth+" < "+currBandwidth+")";return experimentalBufferBasedABR&&(logLine+=" and forwardBuffer < bufferHighWaterLine ("+forwardBuffer+" < "+bufferHighWaterLine+")"),log(logLine),!0}if((!experimentalBufferBasedABR||nextBandwidth>currBandwidth)&&forwardBuffer>=bufferLowWaterLine){var _logLine=sharedLogLine+" as forwardBuffer >= bufferLowWaterLine ("+forwardBuffer+" >= "+bufferLowWaterLine+")";return experimentalBufferBasedABR&&(_logLine+=" and next bandwidth > current bandwidth ("+nextBandwidth+" > "+currBandwidth+")"),log(_logLine),!0}return log("not "+sharedLogLine+" as no switching criteria met"),!1}({buffered:this.tech_.buffered(),currentTime:currentTime,currentPlaylist:currentPlaylist,nextPlaylist:nextPlaylist,bufferLowWaterLine:bufferLowWaterLine,bufferHighWaterLine:bufferHighWaterLine,duration:this.duration(),experimentalBufferBasedABR:this.experimentalBufferBasedABR,log:this.logger_})},_proto.setupSegmentLoaderListeners_=function(){var _this4=this;this.experimentalBufferBasedABR||(this.mainSegmentLoader_.on("bandwidthupdate",(function(){var nextPlaylist=_this4.selectPlaylist();_this4.shouldSwitchToMedia_(nextPlaylist)&&_this4.switchMedia_(nextPlaylist,"bandwidthupdate"),_this4.tech_.trigger("bandwidthupdate")})),this.mainSegmentLoader_.on("progress",(function(){_this4.trigger("progress")}))),this.mainSegmentLoader_.on("error",(function(){_this4.blacklistCurrentPlaylist(_this4.mainSegmentLoader_.error())})),this.mainSegmentLoader_.on("appenderror",(function(){_this4.error=_this4.mainSegmentLoader_.error_,_this4.trigger("error")})),this.mainSegmentLoader_.on("syncinfoupdate",(function(){_this4.onSyncInfoUpdate_()})),this.mainSegmentLoader_.on("timestampoffset",(function(){_this4.tech_.trigger({type:"usage",name:"vhs-timestamp-offset"}),_this4.tech_.trigger({type:"usage",name:"hls-timestamp-offset"})})),this.audioSegmentLoader_.on("syncinfoupdate",(function(){_this4.onSyncInfoUpdate_()})),this.audioSegmentLoader_.on("appenderror",(function(){_this4.error=_this4.audioSegmentLoader_.error_,_this4.trigger("error")})),this.mainSegmentLoader_.on("ended",(function(){_this4.logger_("main segment loader ended"),_this4.onEndOfStream()})),this.mainSegmentLoader_.on("earlyabort",(function(event){_this4.experimentalBufferBasedABR||(_this4.delegateLoaders_("all",["abort"]),_this4.blacklistCurrentPlaylist({message:"Aborted early because there isn't enough bandwidth to complete the request without rebuffering."},120))}));var updateCodecs=function(){if(!_this4.sourceUpdater_.hasCreatedSourceBuffers())return _this4.tryToCreateSourceBuffers_();var codecs=_this4.getCodecsOrExclude_();codecs&&_this4.sourceUpdater_.addOrChangeSourceBuffers(codecs)};this.mainSegmentLoader_.on("trackinfo",updateCodecs),this.audioSegmentLoader_.on("trackinfo",updateCodecs),this.mainSegmentLoader_.on("fmp4",(function(){_this4.triggeredFmp4Usage||(_this4.tech_.trigger({type:"usage",name:"vhs-fmp4"}),_this4.tech_.trigger({type:"usage",name:"hls-fmp4"}),_this4.triggeredFmp4Usage=!0)})),this.audioSegmentLoader_.on("fmp4",(function(){_this4.triggeredFmp4Usage||(_this4.tech_.trigger({type:"usage",name:"vhs-fmp4"}),_this4.tech_.trigger({type:"usage",name:"hls-fmp4"}),_this4.triggeredFmp4Usage=!0)})),this.audioSegmentLoader_.on("ended",(function(){_this4.logger_("audioSegmentLoader ended"),_this4.onEndOfStream()}))},_proto.mediaSecondsLoaded_=function(){return Math.max(this.audioSegmentLoader_.mediaSecondsLoaded+this.mainSegmentLoader_.mediaSecondsLoaded)},_proto.load=function(){this.mainSegmentLoader_.load(),this.mediaTypes_.AUDIO.activePlaylistLoader&&this.audioSegmentLoader_.load(),this.mediaTypes_.SUBTITLES.activePlaylistLoader&&this.subtitleSegmentLoader_.load()},_proto.smoothQualityChange_=function(media){void 0===media&&(media=this.selectPlaylist()),this.fastQualityChange_(media)},_proto.fastQualityChange_=function(media){var _this5=this;void 0===media&&(media=this.selectPlaylist()),media!==this.masterPlaylistLoader_.media()?(this.switchMedia_(media,"fast-quality"),this.mainSegmentLoader_.resetEverything((function(){videojs.browser.IE_VERSION||videojs.browser.IS_EDGE?_this5.tech_.setCurrentTime(_this5.tech_.currentTime()+.04):_this5.tech_.setCurrentTime(_this5.tech_.currentTime())}))):this.logger_("skipping fastQualityChange because new media is same as old")},_proto.play=function(){if(!this.setupFirstPlay()){this.tech_.ended()&&this.tech_.setCurrentTime(0),this.hasPlayed_&&this.load();var seekable=this.tech_.seekable();return this.tech_.duration()===1/0&&this.tech_.currentTime()<seekable.start(0)?this.tech_.setCurrentTime(seekable.end(seekable.length-1)):void 0}},_proto.setupFirstPlay=function(){var _this6=this,media=this.masterPlaylistLoader_.media();if(!media||this.tech_.paused()||this.hasPlayed_)return!1;if(!media.endList){var seekable=this.seekable();if(!seekable.length)return!1;if(videojs.browser.IE_VERSION&&0===this.tech_.readyState())return this.tech_.one("loadedmetadata",(function(){_this6.trigger("firstplay"),_this6.tech_.setCurrentTime(seekable.end(0)),_this6.hasPlayed_=!0})),!1;this.trigger("firstplay"),this.tech_.setCurrentTime(seekable.end(0))}return this.hasPlayed_=!0,this.load(),!0},_proto.handleSourceOpen_=function(){if(this.tryToCreateSourceBuffers_(),this.tech_.autoplay()){var playPromise=this.tech_.play();void 0!==playPromise&&"function"==typeof playPromise.then&&playPromise.then(null,(function(e){}))}this.trigger("sourceopen")},_proto.handleSourceEnded_=function(){if(this.inbandTextTracks_.metadataTrack_){var cues=this.inbandTextTracks_.metadataTrack_.cues;if(cues&&cues.length){var duration=this.duration();cues[cues.length-1].endTime=isNaN(duration)||Math.abs(duration)===1/0?Number.MAX_VALUE:duration}}},_proto.handleDurationChange_=function(){this.tech_.trigger("durationchange")},_proto.onEndOfStream=function(){var isEndOfStream=this.mainSegmentLoader_.ended_;if(this.mediaTypes_.AUDIO.activePlaylistLoader){var mainMediaInfo=this.mainSegmentLoader_.getCurrentMediaInfo_();isEndOfStream=!mainMediaInfo||mainMediaInfo.hasVideo?isEndOfStream&&this.audioSegmentLoader_.ended_:this.audioSegmentLoader_.ended_}isEndOfStream&&(this.stopABRTimer_(),this.sourceUpdater_.endOfStream())},_proto.stuckAtPlaylistEnd_=function(playlist){if(!this.seekable().length)return!1;var expired=this.syncController_.getExpiredTime(playlist,this.duration());if(null===expired)return!1;var absolutePlaylistEnd=Vhs$1.Playlist.playlistEnd(playlist,expired),currentTime=this.tech_.currentTime(),buffered=this.tech_.buffered();if(!buffered.length)return absolutePlaylistEnd-currentTime<=.1;var bufferedEnd=buffered.end(buffered.length-1);return bufferedEnd-currentTime<=.1&&absolutePlaylistEnd-bufferedEnd<=.1},_proto.blacklistCurrentPlaylist=function(error,blacklistDuration){void 0===error&&(error={});var currentPlaylist=error.playlist||this.masterPlaylistLoader_.media();if(blacklistDuration=blacklistDuration||error.blacklistDuration||this.blacklistDuration,!currentPlaylist)return this.error=error,void("open"!==this.mediaSource.readyState?this.trigger("error"):this.sourceUpdater_.endOfStream("network"));currentPlaylist.playlistErrors_++;var excludeUntil,playlists=this.masterPlaylistLoader_.master.playlists,enabledPlaylists=playlists.filter(isEnabled),isFinalRendition=1===enabledPlaylists.length&&enabledPlaylists[0]===currentPlaylist;if(1===playlists.length&&blacklistDuration!==1/0)return videojs.log.warn("Problem encountered with playlist "+currentPlaylist.id+". Trying again since it is the only playlist."),this.tech_.trigger("retryplaylist"),this.masterPlaylistLoader_.load(isFinalRendition);if(isFinalRendition){var reincluded=!1;playlists.forEach((function(playlist){if(playlist!==currentPlaylist){var excludeUntil=playlist.excludeUntil;void 0!==excludeUntil&&excludeUntil!==1/0&&(reincluded=!0,delete playlist.excludeUntil)}})),reincluded&&(videojs.log.warn("Removing other playlists from the exclusion list because the last rendition is about to be excluded."),this.tech_.trigger("retryplaylist"))}excludeUntil=currentPlaylist.playlistErrors_>this.maxPlaylistRetries?1/0:Date.now()+1e3*blacklistDuration,currentPlaylist.excludeUntil=excludeUntil,error.reason&&(currentPlaylist.lastExcludeReason_=error.reason),this.tech_.trigger("blacklistplaylist"),this.tech_.trigger({type:"usage",name:"vhs-rendition-blacklisted"}),this.tech_.trigger({type:"usage",name:"hls-rendition-blacklisted"});var nextPlaylist=this.selectPlaylist();if(!nextPlaylist)return this.error="Playback cannot continue. No available working or supported playlists.",void this.trigger("error");var logFn=error.internal?this.logger_:videojs.log.warn,errorMessage=error.message?" "+error.message:"";logFn((error.internal?"Internal problem":"Problem")+" encountered with playlist "+currentPlaylist.id+"."+errorMessage+" Switching to playlist "+nextPlaylist.id+"."),nextPlaylist.attributes.AUDIO!==currentPlaylist.attributes.AUDIO&&this.delegateLoaders_("audio",["abort","pause"]),nextPlaylist.attributes.SUBTITLES!==currentPlaylist.attributes.SUBTITLES&&this.delegateLoaders_("subtitle",["abort","pause"]),this.delegateLoaders_("main",["abort","pause"]);var delayDuration=nextPlaylist.targetDuration/2*1e3||5e3,shouldDelay="number"==typeof nextPlaylist.lastRequest&&Date.now()-nextPlaylist.lastRequest<=delayDuration;return this.switchMedia_(nextPlaylist,"exclude",isFinalRendition||shouldDelay)},_proto.pauseLoading=function(){this.delegateLoaders_("all",["abort","pause"]),this.stopABRTimer_()},_proto.delegateLoaders_=function(filter,fnNames){var _this7=this,loaders=[],dontFilterPlaylist="all"===filter;(dontFilterPlaylist||"main"===filter)&&loaders.push(this.masterPlaylistLoader_);var mediaTypes=[];(dontFilterPlaylist||"audio"===filter)&&mediaTypes.push("AUDIO"),(dontFilterPlaylist||"subtitle"===filter)&&(mediaTypes.push("CLOSED-CAPTIONS"),mediaTypes.push("SUBTITLES")),mediaTypes.forEach((function(mediaType){var loader=_this7.mediaTypes_[mediaType]&&_this7.mediaTypes_[mediaType].activePlaylistLoader;loader&&loaders.push(loader)})),["main","audio","subtitle"].forEach((function(name){var loader=_this7[name+"SegmentLoader_"];!loader||filter!==name&&"all"!==filter||loaders.push(loader)})),loaders.forEach((function(loader){return fnNames.forEach((function(fnName){"function"==typeof loader[fnName]&&loader[fnName]()}))}))},_proto.setCurrentTime=function(currentTime){var buffered=findRange(this.tech_.buffered(),currentTime);return this.masterPlaylistLoader_&&this.masterPlaylistLoader_.media()&&this.masterPlaylistLoader_.media().segments?buffered&&buffered.length?currentTime:(this.mainSegmentLoader_.resetEverything(),this.mainSegmentLoader_.abort(),this.mediaTypes_.AUDIO.activePlaylistLoader&&(this.audioSegmentLoader_.resetEverything(),this.audioSegmentLoader_.abort()),this.mediaTypes_.SUBTITLES.activePlaylistLoader&&(this.subtitleSegmentLoader_.resetEverything(),this.subtitleSegmentLoader_.abort()),void this.load()):0},_proto.duration=function(){if(!this.masterPlaylistLoader_)return 0;var media=this.masterPlaylistLoader_.media();return media?media.endList?this.mediaSource?this.mediaSource.duration:Vhs$1.Playlist.duration(media):1/0:0},_proto.seekable=function(){return this.seekable_},_proto.onSyncInfoUpdate_=function(){var audioSeekable;if(this.masterPlaylistLoader_){var media=this.masterPlaylistLoader_.media();if(media){var expired=this.syncController_.getExpiredTime(media,this.duration());if(null!==expired){var master=this.masterPlaylistLoader_.master,mainSeekable=Vhs$1.Playlist.seekable(media,expired,Vhs$1.Playlist.liveEdgeDelay(master,media));if(0!==mainSeekable.length){if(this.mediaTypes_.AUDIO.activePlaylistLoader){if(media=this.mediaTypes_.AUDIO.activePlaylistLoader.media(),null===(expired=this.syncController_.getExpiredTime(media,this.duration())))return;if(0===(audioSeekable=Vhs$1.Playlist.seekable(media,expired,Vhs$1.Playlist.liveEdgeDelay(master,media))).length)return}var oldEnd,oldStart;this.seekable_&&this.seekable_.length&&(oldEnd=this.seekable_.end(0),oldStart=this.seekable_.start(0)),audioSeekable?audioSeekable.start(0)>mainSeekable.end(0)||mainSeekable.start(0)>audioSeekable.end(0)?this.seekable_=mainSeekable:this.seekable_=videojs.createTimeRanges([[audioSeekable.start(0)>mainSeekable.start(0)?audioSeekable.start(0):mainSeekable.start(0),audioSeekable.end(0)<mainSeekable.end(0)?audioSeekable.end(0):mainSeekable.end(0)]]):this.seekable_=mainSeekable,this.seekable_&&this.seekable_.length&&this.seekable_.end(0)===oldEnd&&this.seekable_.start(0)===oldStart||(this.logger_("seekable updated ["+printableRange(this.seekable_)+"]"),this.tech_.trigger("seekablechanged"))}}}}},_proto.updateDuration=function(isLive){if(this.updateDuration_&&(this.mediaSource.removeEventListener("sourceopen",this.updateDuration_),this.updateDuration_=null),"open"!==this.mediaSource.readyState)return this.updateDuration_=this.updateDuration.bind(this,isLive),void this.mediaSource.addEventListener("sourceopen",this.updateDuration_);if(isLive){var seekable=this.seekable();if(!seekable.length)return;(isNaN(this.mediaSource.duration)||this.mediaSource.duration<seekable.end(seekable.length-1))&&this.sourceUpdater_.setDuration(seekable.end(seekable.length-1))}else{var buffered=this.tech_.buffered(),duration=Vhs$1.Playlist.duration(this.masterPlaylistLoader_.media());buffered.length>0&&(duration=Math.max(duration,buffered.end(buffered.length-1))),this.mediaSource.duration!==duration&&this.sourceUpdater_.setDuration(duration)}},_proto.dispose=function(){var _this8=this;this.trigger("dispose"),this.decrypter_.terminate(),this.masterPlaylistLoader_.dispose(),this.mainSegmentLoader_.dispose(),this.loadOnPlay_&&this.tech_.off("play",this.loadOnPlay_),["AUDIO","SUBTITLES"].forEach((function(type){var groups=_this8.mediaTypes_[type].groups;for(var id in groups)groups[id].forEach((function(group){group.playlistLoader&&group.playlistLoader.dispose()}))})),this.audioSegmentLoader_.dispose(),this.subtitleSegmentLoader_.dispose(),this.sourceUpdater_.dispose(),this.timelineChangeController_.dispose(),this.stopABRTimer_(),this.updateDuration_&&this.mediaSource.removeEventListener("sourceopen",this.updateDuration_),this.mediaSource.removeEventListener("durationchange",this.handleDurationChange_),this.mediaSource.removeEventListener("sourceopen",this.handleSourceOpen_),this.mediaSource.removeEventListener("sourceended",this.handleSourceEnded_),this.off()},_proto.master=function(){return this.masterPlaylistLoader_.master},_proto.media=function(){return this.masterPlaylistLoader_.media()||this.initialMedia_},_proto.areMediaTypesKnown_=function(){var usingAudioLoader=!!this.mediaTypes_.AUDIO.activePlaylistLoader,hasMainMediaInfo=!!this.mainSegmentLoader_.getCurrentMediaInfo_(),hasAudioMediaInfo=!usingAudioLoader||!!this.audioSegmentLoader_.getCurrentMediaInfo_();return!(!hasMainMediaInfo||!hasAudioMediaInfo)},_proto.getCodecsOrExclude_=function(){var _this9=this,media={main:this.mainSegmentLoader_.getCurrentMediaInfo_()||{},audio:this.audioSegmentLoader_.getCurrentMediaInfo_()||{}};media.video=media.main;var playlistCodecs=codecsForPlaylist(this.master(),this.media()),codecs={},usingAudioLoader=!!this.mediaTypes_.AUDIO.activePlaylistLoader;if(media.main.hasVideo&&(codecs.video=playlistCodecs.video||media.main.videoCodec||"avc1.4d400d"),media.main.isMuxed&&(codecs.video+=","+(playlistCodecs.audio||media.main.audioCodec||"mp4a.40.2")),(media.main.hasAudio&&!media.main.isMuxed||media.audio.hasAudio||usingAudioLoader)&&(codecs.audio=playlistCodecs.audio||media.main.audioCodec||media.audio.audioCodec||"mp4a.40.2",media.audio.isFmp4=media.main.hasAudio&&!media.main.isMuxed?media.main.isFmp4:media.audio.isFmp4),codecs.audio||codecs.video){var unsupportedAudio,unsupportedCodecs={};if(["video","audio"].forEach((function(type){if(codecs.hasOwnProperty(type)&&(isFmp4=media[type].isFmp4,codec=codecs[type],!(isFmp4?browserSupportsCodec(codec):muxerSupportsCodec(codec)))){var supporter=media[type].isFmp4?"browser":"muxer";unsupportedCodecs[supporter]=unsupportedCodecs[supporter]||[],unsupportedCodecs[supporter].push(codecs[type]),"audio"===type&&(unsupportedAudio=supporter)}var isFmp4,codec})),usingAudioLoader&&unsupportedAudio&&this.media().attributes.AUDIO){var audioGroup=this.media().attributes.AUDIO;this.master().playlists.forEach((function(variant){(variant.attributes&&variant.attributes.AUDIO)===audioGroup&&variant!==_this9.media()&&(variant.excludeUntil=1/0)})),this.logger_("excluding audio group "+audioGroup+" as "+unsupportedAudio+' does not support codec(s): "'+codecs.audio+'"')}if(!Object.keys(unsupportedCodecs).length){if(this.sourceUpdater_.hasCreatedSourceBuffers()&&!this.sourceUpdater_.canChangeType()){var switchMessages=[];if(["video","audio"].forEach((function(type){var newCodec=(parseCodecs(_this9.sourceUpdater_.codecs[type]||"")[0]||{}).type,oldCodec=(parseCodecs(codecs[type]||"")[0]||{}).type;newCodec&&oldCodec&&newCodec.toLowerCase()!==oldCodec.toLowerCase()&&switchMessages.push('"'+_this9.sourceUpdater_.codecs[type]+'" -> "'+codecs[type]+'"')})),switchMessages.length)return void this.blacklistCurrentPlaylist({playlist:this.media(),message:"Codec switching not supported: "+switchMessages.join(", ")+".",blacklistDuration:1/0,internal:!0})}return codecs}var message=Object.keys(unsupportedCodecs).reduce((function(acc,supporter){return acc&&(acc+=", "),acc+=supporter+' does not support codec(s): "'+unsupportedCodecs[supporter].join(",")+'"'}),"")+".";this.blacklistCurrentPlaylist({playlist:this.media(),internal:!0,message:message,blacklistDuration:1/0})}else this.blacklistCurrentPlaylist({playlist:this.media(),message:"Could not determine codecs for playlist.",blacklistDuration:1/0})},_proto.tryToCreateSourceBuffers_=function(){if("open"===this.mediaSource.readyState&&!this.sourceUpdater_.hasCreatedSourceBuffers()&&this.areMediaTypesKnown_()){var codecs=this.getCodecsOrExclude_();if(codecs){this.sourceUpdater_.createSourceBuffers(codecs);var codecString=[codecs.video,codecs.audio].filter(Boolean).join(",");this.excludeIncompatibleVariants_(codecString)}}},_proto.excludeUnsupportedVariants_=function(){var _this10=this,playlists=this.master().playlists,ids=[];Object.keys(playlists).forEach((function(key){var variant=playlists[key];if(-1===ids.indexOf(variant.id)){ids.push(variant.id);var codecs=codecsForPlaylist(_this10.master,variant),unsupported=[];!codecs.audio||muxerSupportsCodec(codecs.audio)||browserSupportsCodec(codecs.audio)||unsupported.push("audio codec "+codecs.audio),!codecs.video||muxerSupportsCodec(codecs.video)||browserSupportsCodec(codecs.video)||unsupported.push("video codec "+codecs.video),codecs.text&&"stpp.ttml.im1t"===codecs.text&&unsupported.push("text codec "+codecs.text),unsupported.length&&(variant.excludeUntil=1/0,_this10.logger_("excluding "+variant.id+" for unsupported: "+unsupported.join(", ")))}}))},_proto.excludeIncompatibleVariants_=function(codecString){var _this11=this,ids=[],playlists=this.master().playlists,codecs=unwrapCodecList(parseCodecs(codecString)),codecCount_=codecCount(codecs),videoDetails=codecs.video&&parseCodecs(codecs.video)[0]||null,audioDetails=codecs.audio&&parseCodecs(codecs.audio)[0]||null;Object.keys(playlists).forEach((function(key){var variant=playlists[key];if(-1===ids.indexOf(variant.id)&&variant.excludeUntil!==1/0){ids.push(variant.id);var blacklistReasons=[],variantCodecs=codecsForPlaylist(_this11.masterPlaylistLoader_.master,variant),variantCodecCount=codecCount(variantCodecs);if(variantCodecs.audio||variantCodecs.video){if(variantCodecCount!==codecCount_&&blacklistReasons.push('codec count "'+variantCodecCount+'" !== "'+codecCount_+'"'),!_this11.sourceUpdater_.canChangeType()){var variantVideoDetails=variantCodecs.video&&parseCodecs(variantCodecs.video)[0]||null,variantAudioDetails=variantCodecs.audio&&parseCodecs(variantCodecs.audio)[0]||null;variantVideoDetails&&videoDetails&&variantVideoDetails.type.toLowerCase()!==videoDetails.type.toLowerCase()&&blacklistReasons.push('video codec "'+variantVideoDetails.type+'" !== "'+videoDetails.type+'"'),variantAudioDetails&&audioDetails&&variantAudioDetails.type.toLowerCase()!==audioDetails.type.toLowerCase()&&blacklistReasons.push('audio codec "'+variantAudioDetails.type+'" !== "'+audioDetails.type+'"')}blacklistReasons.length&&(variant.excludeUntil=1/0,_this11.logger_("blacklisting "+variant.id+": "+blacklistReasons.join(" && ")))}}}))},_proto.updateAdCues_=function(media){var offset=0,seekable=this.seekable();seekable.length&&(offset=seekable.start(0)),function(media,track,offset){if(void 0===offset&&(offset=0),media.segments)for(var cue,mediaTime=offset,i=0;i<media.segments.length;i++){var segment=media.segments[i];if(cue||(cue=findAdCue(track,mediaTime+segment.duration/2)),cue){if("cueIn"in segment){cue.endTime=mediaTime,cue.adEndTime=mediaTime,mediaTime+=segment.duration,cue=null;continue}if(mediaTime<cue.endTime){mediaTime+=segment.duration;continue}cue.endTime+=segment.duration}else if("cueOut"in segment&&((cue=new window.VTTCue(mediaTime,mediaTime+segment.duration,segment.cueOut)).adStartTime=mediaTime,cue.adEndTime=mediaTime+parseFloat(segment.cueOut),track.addCue(cue)),"cueOutCont"in segment){var _segment$cueOutCont$s=segment.cueOutCont.split("/").map(parseFloat),adOffset=_segment$cueOutCont$s[0],adTotal=_segment$cueOutCont$s[1];(cue=new window.VTTCue(mediaTime,mediaTime+segment.duration,"")).adStartTime=mediaTime-adOffset,cue.adEndTime=cue.adStartTime+adTotal,track.addCue(cue)}mediaTime+=segment.duration}}(media,this.cueTagsTrack_,offset)},_proto.goalBufferLength=function(){var currentTime=this.tech_.currentTime(),initial=Config.GOAL_BUFFER_LENGTH,rate=Config.GOAL_BUFFER_LENGTH_RATE,max=Math.max(initial,Config.MAX_GOAL_BUFFER_LENGTH);return Math.min(initial+currentTime*rate,max)},_proto.bufferLowWaterLine=function(){var currentTime=this.tech_.currentTime(),initial=Config.BUFFER_LOW_WATER_LINE,rate=Config.BUFFER_LOW_WATER_LINE_RATE,max=Math.max(initial,Config.MAX_BUFFER_LOW_WATER_LINE),newMax=Math.max(initial,Config.EXPERIMENTAL_MAX_BUFFER_LOW_WATER_LINE);return Math.min(initial+currentTime*rate,this.experimentalBufferBasedABR?newMax:max)},_proto.bufferHighWaterLine=function(){return Config.BUFFER_HIGH_WATER_LINE},MasterPlaylistController}(videojs.EventTarget),Representation=function(vhsHandler,playlist,id){var loader,playlistID,changePlaylistFn,mpc=vhsHandler.masterPlaylistController_,qualityChangeFunction=mpc[(vhsHandler.options_.smoothQualityChange?"smooth":"fast")+"QualityChange_"].bind(mpc);if(playlist.attributes){var resolution=playlist.attributes.RESOLUTION;this.width=resolution&&resolution.width,this.height=resolution&&resolution.height,this.bandwidth=playlist.attributes.BANDWIDTH}this.codecs=codecsForPlaylist(mpc.master(),playlist),this.playlist=playlist,this.id=id,this.enabled=(loader=vhsHandler.playlists,playlistID=playlist.id,changePlaylistFn=qualityChangeFunction,function(enable){var playlist=loader.master.playlists[playlistID],incompatible=isIncompatible(playlist),currentlyEnabled=isEnabled(playlist);return void 0===enable?currentlyEnabled:(enable?delete playlist.disabled:playlist.disabled=!0,enable===currentlyEnabled||incompatible||(changePlaylistFn(),enable?loader.trigger("renditionenabled"):loader.trigger("renditiondisabled")),enable)})},timerCancelEvents=["seeking","seeked","pause","playing","error"],PlaybackWatcher=function(){function PlaybackWatcher(options){var _this=this;this.masterPlaylistController_=options.masterPlaylistController,this.tech_=options.tech,this.seekable=options.seekable,this.allowSeeksWithinUnsafeLiveWindow=options.allowSeeksWithinUnsafeLiveWindow,this.liveRangeSafeTimeDelta=options.liveRangeSafeTimeDelta,this.media=options.media,this.consecutiveUpdates=0,this.lastRecordedTime=null,this.timer_=null,this.checkCurrentTimeTimeout_=null,this.logger_=logger("PlaybackWatcher"),this.logger_("initialize");var playHandler=function(){return _this.monitorCurrentTime_()},canPlayHandler=function(){return _this.monitorCurrentTime_()},waitingHandler=function(){return _this.techWaiting_()},cancelTimerHandler=function(){return _this.cancelTimer_()},mpc=this.masterPlaylistController_,loaderTypes=["main","subtitle","audio"],loaderChecks={};loaderTypes.forEach((function(type){loaderChecks[type]={reset:function(){return _this.resetSegmentDownloads_(type)},updateend:function(){return _this.checkSegmentDownloads_(type)}},mpc[type+"SegmentLoader_"].on("appendsdone",loaderChecks[type].updateend),mpc[type+"SegmentLoader_"].on("playlistupdate",loaderChecks[type].reset),_this.tech_.on(["seeked","seeking"],loaderChecks[type].reset)}));var setSeekingHandlers=function(fn){["main","audio"].forEach((function(type){mpc[type+"SegmentLoader_"][fn]("appended",_this.seekingAppendCheck_)}))};this.seekingAppendCheck_=function(){_this.fixesBadSeeks_()&&(_this.consecutiveUpdates=0,_this.lastRecordedTime=_this.tech_.currentTime(),setSeekingHandlers("off"))},this.clearSeekingAppendCheck_=function(){return setSeekingHandlers("off")},this.watchForBadSeeking_=function(){_this.clearSeekingAppendCheck_(),setSeekingHandlers("on")},this.tech_.on("seeked",this.clearSeekingAppendCheck_),this.tech_.on("seeking",this.watchForBadSeeking_),this.tech_.on("waiting",waitingHandler),this.tech_.on(timerCancelEvents,cancelTimerHandler),this.tech_.on("canplay",canPlayHandler),this.tech_.one("play",playHandler),this.dispose=function(){_this.clearSeekingAppendCheck_(),_this.logger_("dispose"),_this.tech_.off("waiting",waitingHandler),_this.tech_.off(timerCancelEvents,cancelTimerHandler),_this.tech_.off("canplay",canPlayHandler),_this.tech_.off("play",playHandler),_this.tech_.off("seeking",_this.watchForBadSeeking_),_this.tech_.off("seeked",_this.clearSeekingAppendCheck_),loaderTypes.forEach((function(type){mpc[type+"SegmentLoader_"].off("appendsdone",loaderChecks[type].updateend),mpc[type+"SegmentLoader_"].off("playlistupdate",loaderChecks[type].reset),_this.tech_.off(["seeked","seeking"],loaderChecks[type].reset)})),_this.checkCurrentTimeTimeout_&&window.clearTimeout(_this.checkCurrentTimeTimeout_),_this.cancelTimer_()}}var _proto=PlaybackWatcher.prototype;return _proto.monitorCurrentTime_=function(){this.checkCurrentTime_(),this.checkCurrentTimeTimeout_&&window.clearTimeout(this.checkCurrentTimeTimeout_),this.checkCurrentTimeTimeout_=window.setTimeout(this.monitorCurrentTime_.bind(this),250)},_proto.resetSegmentDownloads_=function(type){var loader=this.masterPlaylistController_[type+"SegmentLoader_"];this[type+"StalledDownloads_"]>0&&this.logger_("resetting possible stalled download count for "+type+" loader"),this[type+"StalledDownloads_"]=0,this[type+"Buffered_"]=loader.buffered_()},_proto.checkSegmentDownloads_=function(type){var mpc=this.masterPlaylistController_,loader=mpc[type+"SegmentLoader_"],buffered=loader.buffered_(),isBufferedDifferent=function(a,b){if(a===b)return!1;if(!a&&b||!b&&a)return!0;if(a.length!==b.length)return!0;for(var i=0;i<a.length;i++)if(a.start(i)!==b.start(i)||a.end(i)!==b.end(i))return!0;return!1}(this[type+"Buffered_"],buffered);this[type+"Buffered_"]=buffered,isBufferedDifferent?this.resetSegmentDownloads_(type):(this[type+"StalledDownloads_"]++,this.logger_("found #"+this[type+"StalledDownloads_"]+" "+type+" appends that did not increase buffer (possible stalled download)",{playlistId:loader.playlist_&&loader.playlist_.id,buffered:timeRangesToArray(buffered)}),this[type+"StalledDownloads_"]<10||(this.logger_(type+" loader stalled download exclusion"),this.resetSegmentDownloads_(type),this.tech_.trigger({type:"usage",name:"vhs-"+type+"-download-exclusion"}),"subtitle"!==type&&mpc.blacklistCurrentPlaylist({message:"Excessive "+type+" segment downloading detected."},1/0)))},_proto.checkCurrentTime_=function(){if(!this.tech_.paused()&&!this.tech_.seeking()){var currentTime=this.tech_.currentTime(),buffered=this.tech_.buffered();if(this.lastRecordedTime===currentTime&&(!buffered.length||currentTime+.1>=buffered.end(buffered.length-1)))return this.techWaiting_();this.consecutiveUpdates>=5&&currentTime===this.lastRecordedTime?(this.consecutiveUpdates++,this.waiting_()):currentTime===this.lastRecordedTime?this.consecutiveUpdates++:(this.consecutiveUpdates=0,this.lastRecordedTime=currentTime)}},_proto.cancelTimer_=function(){this.consecutiveUpdates=0,this.timer_&&(this.logger_("cancelTimer_"),clearTimeout(this.timer_)),this.timer_=null},_proto.fixesBadSeeks_=function(){if(!this.tech_.seeking())return!1;var seekTo,seekable=this.seekable(),currentTime=this.tech_.currentTime();this.afterSeekableWindow_(seekable,currentTime,this.media(),this.allowSeeksWithinUnsafeLiveWindow)&&(seekTo=seekable.end(seekable.length-1));if(this.beforeSeekableWindow_(seekable,currentTime)){var seekableStart=seekable.start(0);seekTo=seekableStart+(seekableStart===seekable.end(0)?0:.1)}if(void 0!==seekTo)return this.logger_("Trying to seek outside of seekable at time "+currentTime+" with seekable range "+printableRange(seekable)+". Seeking to "+seekTo+"."),this.tech_.setCurrentTime(seekTo),!0;for(var sourceUpdater=this.masterPlaylistController_.sourceUpdater_,buffered=this.tech_.buffered(),audioBuffered=sourceUpdater.audioBuffer?sourceUpdater.audioBuffered():null,videoBuffered=sourceUpdater.videoBuffer?sourceUpdater.videoBuffered():null,media=this.media(),minAppendedDuration=media.partTargetDuration?media.partTargetDuration:2*(media.targetDuration-.03333333333333333),bufferedToCheck=[audioBuffered,videoBuffered],i=0;i<bufferedToCheck.length;i++){if(bufferedToCheck[i])if(timeAheadOf(bufferedToCheck[i],currentTime)<minAppendedDuration)return!1}var nextRange=findNextRange(buffered,currentTime);return 0!==nextRange.length&&(seekTo=nextRange.start(0)+.1,this.logger_("Buffered region starts ("+nextRange.start(0)+")  just beyond seek point ("+currentTime+"). Seeking to "+seekTo+"."),this.tech_.setCurrentTime(seekTo),!0)},_proto.waiting_=function(){if(!this.techWaiting_()){var currentTime=this.tech_.currentTime(),buffered=this.tech_.buffered(),currentRange=findRange(buffered,currentTime);return currentRange.length&&currentTime+3<=currentRange.end(0)?(this.cancelTimer_(),this.tech_.setCurrentTime(currentTime),this.logger_("Stopped at "+currentTime+" while inside a buffered region ["+currentRange.start(0)+" -> "+currentRange.end(0)+"]. Attempting to resume playback by seeking to the current time."),this.tech_.trigger({type:"usage",name:"vhs-unknown-waiting"}),void this.tech_.trigger({type:"usage",name:"hls-unknown-waiting"})):void 0}},_proto.techWaiting_=function(){var seekable=this.seekable(),currentTime=this.tech_.currentTime();if(this.tech_.seeking()||null!==this.timer_)return!0;if(this.beforeSeekableWindow_(seekable,currentTime)){var livePoint=seekable.end(seekable.length-1);return this.logger_("Fell out of live window at time "+currentTime+". Seeking to live point (seekable end) "+livePoint),this.cancelTimer_(),this.tech_.setCurrentTime(livePoint),this.tech_.trigger({type:"usage",name:"vhs-live-resync"}),this.tech_.trigger({type:"usage",name:"hls-live-resync"}),!0}var sourceUpdater=this.tech_.vhs.masterPlaylistController_.sourceUpdater_,buffered=this.tech_.buffered();if(this.videoUnderflow_({audioBuffered:sourceUpdater.audioBuffered(),videoBuffered:sourceUpdater.videoBuffered(),currentTime:currentTime}))return this.cancelTimer_(),this.tech_.setCurrentTime(currentTime),this.tech_.trigger({type:"usage",name:"vhs-video-underflow"}),this.tech_.trigger({type:"usage",name:"hls-video-underflow"}),!0;var nextRange=findNextRange(buffered,currentTime);if(nextRange.length>0){var difference=nextRange.start(0)-currentTime;return this.logger_("Stopped at "+currentTime+", setting timer for "+difference+", seeking to "+nextRange.start(0)),this.cancelTimer_(),this.timer_=setTimeout(this.skipTheGap_.bind(this),1e3*difference,currentTime),!0}return!1},_proto.afterSeekableWindow_=function(seekable,currentTime,playlist,allowSeeksWithinUnsafeLiveWindow){if(void 0===allowSeeksWithinUnsafeLiveWindow&&(allowSeeksWithinUnsafeLiveWindow=!1),!seekable.length)return!1;var allowedEnd=seekable.end(seekable.length-1)+.1;return!playlist.endList&&allowSeeksWithinUnsafeLiveWindow&&(allowedEnd=seekable.end(seekable.length-1)+3*playlist.targetDuration),currentTime>allowedEnd},_proto.beforeSeekableWindow_=function(seekable,currentTime){return!!(seekable.length&&seekable.start(0)>0&&currentTime<seekable.start(0)-this.liveRangeSafeTimeDelta)},_proto.videoUnderflow_=function(_ref){var videoBuffered=_ref.videoBuffered,audioBuffered=_ref.audioBuffered,currentTime=_ref.currentTime;if(videoBuffered){var gap;if(videoBuffered.length&&audioBuffered.length){var lastVideoRange=findRange(videoBuffered,currentTime-3),videoRange=findRange(videoBuffered,currentTime),audioRange=findRange(audioBuffered,currentTime);audioRange.length&&!videoRange.length&&lastVideoRange.length&&(gap={start:lastVideoRange.end(0),end:audioRange.end(0)})}else{findNextRange(videoBuffered,currentTime).length||(gap=this.gapFromVideoUnderflow_(videoBuffered,currentTime))}return!!gap&&(this.logger_("Encountered a gap in video from "+gap.start+" to "+gap.end+". Seeking to current time "+currentTime),!0)}},_proto.skipTheGap_=function(scheduledCurrentTime){var buffered=this.tech_.buffered(),currentTime=this.tech_.currentTime(),nextRange=findNextRange(buffered,currentTime);this.cancelTimer_(),0!==nextRange.length&&currentTime===scheduledCurrentTime&&(this.logger_("skipTheGap_:","currentTime:",currentTime,"scheduled currentTime:",scheduledCurrentTime,"nextRange start:",nextRange.start(0)),this.tech_.setCurrentTime(nextRange.start(0)+.03333333333333333),this.tech_.trigger({type:"usage",name:"vhs-gap-skip"}),this.tech_.trigger({type:"usage",name:"hls-gap-skip"}))},_proto.gapFromVideoUnderflow_=function(buffered,currentTime){for(var gaps=function(buffered){if(buffered.length<2)return videojs.createTimeRanges();for(var ranges=[],i=1;i<buffered.length;i++){var start=buffered.end(i-1),end=buffered.start(i);ranges.push([start,end])}return videojs.createTimeRanges(ranges)}(buffered),i=0;i<gaps.length;i++){var start=gaps.start(i),end=gaps.end(i);if(currentTime-start<4&&currentTime-start>2)return{start:start,end:end}}return null},PlaybackWatcher}(),defaultOptions={errorInterval:30,getSource:function(next){return next(this.tech({IWillNotUseThisInPlugins:!0}).currentSource_||this.currentSource())}},initPlugin=function initPlugin(player,options){var lastCalled=0,seekTo=0,localOptions=videojs.mergeOptions(defaultOptions,options);player.ready((function(){player.trigger({type:"usage",name:"vhs-error-reload-initialized"}),player.trigger({type:"usage",name:"hls-error-reload-initialized"})}));var loadedMetadataHandler=function(){seekTo&&player.currentTime(seekTo)},setSource=function(sourceObj){null!=sourceObj&&(seekTo=player.duration()!==1/0&&player.currentTime()||0,player.one("loadedmetadata",loadedMetadataHandler),player.src(sourceObj),player.trigger({type:"usage",name:"vhs-error-reload"}),player.trigger({type:"usage",name:"hls-error-reload"}),player.play())},errorHandler=function(){return Date.now()-lastCalled<1e3*localOptions.errorInterval?(player.trigger({type:"usage",name:"vhs-error-reload-canceled"}),void player.trigger({type:"usage",name:"hls-error-reload-canceled"})):localOptions.getSource&&"function"==typeof localOptions.getSource?(lastCalled=Date.now(),localOptions.getSource.call(player,setSource)):void videojs.log.error("ERROR: reloadSourceOnError - The option getSource must be a function!")},cleanupEvents=function cleanupEvents(){player.off("loadedmetadata",loadedMetadataHandler),player.off("error",errorHandler),player.off("dispose",cleanupEvents)};player.on("error",errorHandler),player.on("dispose",cleanupEvents),player.reloadSourceOnError=function(newOptions){cleanupEvents(),initPlugin(player,newOptions)}},Vhs={PlaylistLoader:PlaylistLoader,Playlist:Playlist,utils:utils,STANDARD_PLAYLIST_SELECTOR:lastBandwidthSelector,INITIAL_PLAYLIST_SELECTOR:function(){var _this=this,playlists=this.playlists.master.playlists.filter(Playlist.isEnabled);return stableSort(playlists,(function(a,b){return comparePlaylistBandwidth(a,b)})),playlists.filter((function(playlist){return!!codecsForPlaylist(_this.playlists.master,playlist).video}))[0]||null},lastBandwidthSelector:lastBandwidthSelector,movingAverageBandwidthSelector:function(decay){var average=-1,lastSystemBandwidth=-1;if(decay<0||decay>1)throw new Error("Moving average bandwidth decay must be between 0 and 1.");return function(){var pixelRatio=this.useDevicePixelRatio&&window.devicePixelRatio||1;return average<0&&(average=this.systemBandwidth,lastSystemBandwidth=this.systemBandwidth),this.systemBandwidth>0&&this.systemBandwidth!==lastSystemBandwidth&&(average=decay*this.systemBandwidth+(1-decay)*average,lastSystemBandwidth=this.systemBandwidth),simpleSelector(this.playlists.master,average,parseInt(safeGetComputedStyle(this.tech_.el(),"width"),10)*pixelRatio,parseInt(safeGetComputedStyle(this.tech_.el(),"height"),10)*pixelRatio,this.limitRenditionByPlayerDimensions,this.masterPlaylistController_)}},comparePlaylistBandwidth:comparePlaylistBandwidth,comparePlaylistResolution:function(left,right){var leftWidth,rightWidth;return left.attributes.RESOLUTION&&left.attributes.RESOLUTION.width&&(leftWidth=left.attributes.RESOLUTION.width),leftWidth=leftWidth||window.Number.MAX_VALUE,right.attributes.RESOLUTION&&right.attributes.RESOLUTION.width&&(rightWidth=right.attributes.RESOLUTION.width),leftWidth===(rightWidth=rightWidth||window.Number.MAX_VALUE)&&left.attributes.BANDWIDTH&&right.attributes.BANDWIDTH?left.attributes.BANDWIDTH-right.attributes.BANDWIDTH:leftWidth-rightWidth},xhr:xhrFactory()};Object.keys(Config).forEach((function(prop){Object.defineProperty(Vhs,prop,{get:function(){return videojs.log.warn("using Vhs."+prop+" is UNSAFE be sure you know what you are doing"),Config[prop]},set:function(value){videojs.log.warn("using Vhs."+prop+" is UNSAFE be sure you know what you are doing"),"number"!=typeof value||value<0?videojs.log.warn("value of Vhs."+prop+" must be greater than or equal to 0"):Config[prop]=value}})}));var handleVhsMediaChange=function(qualityLevels,playlistLoader){for(var newPlaylist=playlistLoader.media(),selectedIndex=-1,i=0;i<qualityLevels.length;i++)if(qualityLevels[i].id===newPlaylist.id){selectedIndex=i;break}qualityLevels.selectedIndex_=selectedIndex,qualityLevels.trigger({selectedIndex:selectedIndex,type:"change"})};Vhs.canPlaySource=function(){return videojs.log.warn("HLS is no longer a tech. Please remove it from your player's techOrder.")};var waitForKeySessionCreation=function(_ref){var player=_ref.player,sourceKeySystems=_ref.sourceKeySystems,audioMedia=_ref.audioMedia,mainPlaylists=_ref.mainPlaylists;if(!player.eme.initializeMediaKeys)return Promise.resolve();var keySystemsOptionsArr=function(playlists,keySystems){return playlists.reduce((function(keySystemsArr,playlist){if(!playlist.contentProtection)return keySystemsArr;var keySystemsOptions=keySystems.reduce((function(keySystemsObj,keySystem){var keySystemOptions=playlist.contentProtection[keySystem];return keySystemOptions&&keySystemOptions.pssh&&(keySystemsObj[keySystem]={pssh:keySystemOptions.pssh}),keySystemsObj}),{});return Object.keys(keySystemsOptions).length&&keySystemsArr.push(keySystemsOptions),keySystemsArr}),[])}(audioMedia?mainPlaylists.concat([audioMedia]):mainPlaylists,Object.keys(sourceKeySystems)),initializationFinishedPromises=[],keySessionCreatedPromises=[];return keySystemsOptionsArr.forEach((function(keySystemsOptions){keySessionCreatedPromises.push(new Promise((function(resolve,reject){player.tech_.one("keysessioncreated",resolve)}))),initializationFinishedPromises.push(new Promise((function(resolve,reject){player.eme.initializeMediaKeys({keySystems:keySystemsOptions},(function(err){err?reject(err):resolve()}))})))})),Promise.race([Promise.all(initializationFinishedPromises),Promise.race(keySessionCreatedPromises)])},setupEmeOptions=function(_ref2){var player=_ref2.player,sourceOptions=function(keySystemOptions,mainPlaylist,audioPlaylist){if(!keySystemOptions)return keySystemOptions;var codecs={};mainPlaylist&&mainPlaylist.attributes&&mainPlaylist.attributes.CODECS&&(codecs=unwrapCodecList(parseCodecs(mainPlaylist.attributes.CODECS))),audioPlaylist&&audioPlaylist.attributes&&audioPlaylist.attributes.CODECS&&(codecs.audio=audioPlaylist.attributes.CODECS);var videoContentType=getMimeForCodec(codecs.video),audioContentType=getMimeForCodec(codecs.audio),keySystemContentTypes={};for(var keySystem in keySystemOptions)keySystemContentTypes[keySystem]={},audioContentType&&(keySystemContentTypes[keySystem].audioContentType=audioContentType),videoContentType&&(keySystemContentTypes[keySystem].videoContentType=videoContentType),mainPlaylist.contentProtection&&mainPlaylist.contentProtection[keySystem]&&mainPlaylist.contentProtection[keySystem].pssh&&(keySystemContentTypes[keySystem].pssh=mainPlaylist.contentProtection[keySystem].pssh),"string"==typeof keySystemOptions[keySystem]&&(keySystemContentTypes[keySystem].url=keySystemOptions[keySystem]);return videojs.mergeOptions(keySystemOptions,keySystemContentTypes)}(_ref2.sourceKeySystems,_ref2.media,_ref2.audioMedia);return!!sourceOptions&&(player.currentSource().keySystems=sourceOptions,!(sourceOptions&&!player.eme)||(videojs.log.warn("DRM encrypted source cannot be decrypted without a DRM plugin"),!1))},getVhsLocalStorage=function(){if(!window.localStorage)return null;var storedObject=window.localStorage.getItem("videojs-vhs");if(!storedObject)return null;try{return JSON.parse(storedObject)}catch(e){return null}};Vhs.supportsNativeHls=function(){if(!document||!document.createElement)return!1;var video=document.createElement("video");if(!videojs.getTech("Html5").isSupported())return!1;return["application/vnd.apple.mpegurl","audio/mpegurl","audio/x-mpegurl","application/x-mpegurl","video/x-mpegurl","video/mpegurl","application/mpegurl"].some((function(canItPlay){return/maybe|probably/i.test(video.canPlayType(canItPlay))}))}(),Vhs.supportsNativeDash=!!(document&&document.createElement&&videojs.getTech("Html5").isSupported())&&/maybe|probably/i.test(document.createElement("video").canPlayType("application/dash+xml")),Vhs.supportsTypeNatively=function(type){return"hls"===type?Vhs.supportsNativeHls:"dash"===type&&Vhs.supportsNativeDash},Vhs.isSupported=function(){return videojs.log.warn("HLS is no longer a tech. Please remove it from your player's techOrder.")};var VhsHandler=function(_Component){function VhsHandler(source,tech,options){var _this;if(_this=_Component.call(this,tech,videojs.mergeOptions(options.hls,options.vhs))||this,options.hls&&Object.keys(options.hls).length&&videojs.log.warn("Using hls options is deprecated. Please rename `hls` to `vhs` in your options object."),"number"==typeof options.initialBandwidth&&(_this.options_.bandwidth=options.initialBandwidth),_this.logger_=logger("VhsHandler"),tech.options_&&tech.options_.playerId){var _player=videojs(tech.options_.playerId);_player.hasOwnProperty("hls")||Object.defineProperty(_player,"hls",{get:function(){return videojs.log.warn("player.hls is deprecated. Use player.tech().vhs instead."),tech.trigger({type:"usage",name:"hls-player-access"}),assertThisInitialized(_this)},configurable:!0}),_player.hasOwnProperty("vhs")||Object.defineProperty(_player,"vhs",{get:function(){return videojs.log.warn("player.vhs is deprecated. Use player.tech().vhs instead."),tech.trigger({type:"usage",name:"vhs-player-access"}),assertThisInitialized(_this)},configurable:!0}),_player.hasOwnProperty("dash")||Object.defineProperty(_player,"dash",{get:function(){return videojs.log.warn("player.dash is deprecated. Use player.tech().vhs instead."),assertThisInitialized(_this)},configurable:!0}),_this.player_=_player}if(_this.tech_=tech,_this.source_=source,_this.stats={},_this.ignoreNextSeekingEvent_=!1,_this.setOptions_(),_this.options_.overrideNative&&tech.overrideNativeAudioTracks&&tech.overrideNativeVideoTracks)tech.overrideNativeAudioTracks(!0),tech.overrideNativeVideoTracks(!0);else if(_this.options_.overrideNative&&(tech.featuresNativeVideoTracks||tech.featuresNativeAudioTracks))throw new Error("Overriding native HLS requires emulated tracks. See https://git.io/vMpjB");return _this.on(document,["fullscreenchange","webkitfullscreenchange","mozfullscreenchange","MSFullscreenChange"],(function(event){var fullscreenElement=document.fullscreenElement||document.webkitFullscreenElement||document.mozFullScreenElement||document.msFullscreenElement;fullscreenElement&&fullscreenElement.contains(_this.tech_.el())?_this.masterPlaylistController_.fastQualityChange_():_this.masterPlaylistController_.checkABR_()})),_this.on(_this.tech_,"seeking",(function(){this.ignoreNextSeekingEvent_?this.ignoreNextSeekingEvent_=!1:this.setCurrentTime(this.tech_.currentTime())})),_this.on(_this.tech_,"error",(function(){this.tech_.error()&&this.masterPlaylistController_&&this.masterPlaylistController_.pauseLoading()})),_this.on(_this.tech_,"play",_this.play),_this}inheritsLoose(VhsHandler,_Component);var _proto=VhsHandler.prototype;return _proto.setOptions_=function(){var _this2=this;if(this.options_.withCredentials=this.options_.withCredentials||!1,this.options_.handleManifestRedirects=!1!==this.options_.handleManifestRedirects,this.options_.limitRenditionByPlayerDimensions=!1!==this.options_.limitRenditionByPlayerDimensions,this.options_.useDevicePixelRatio=this.options_.useDevicePixelRatio||!1,this.options_.smoothQualityChange=this.options_.smoothQualityChange||!1,this.options_.useBandwidthFromLocalStorage=void 0!==this.source_.useBandwidthFromLocalStorage?this.source_.useBandwidthFromLocalStorage:this.options_.useBandwidthFromLocalStorage||!1,this.options_.useNetworkInformationApi=this.options_.useNetworkInformationApi||!1,this.options_.useDtsForTimestampOffset=this.options_.useDtsForTimestampOffset||!1,this.options_.customTagParsers=this.options_.customTagParsers||[],this.options_.customTagMappers=this.options_.customTagMappers||[],this.options_.cacheEncryptionKeys=this.options_.cacheEncryptionKeys||!1,"number"!=typeof this.options_.blacklistDuration&&(this.options_.blacklistDuration=300),"number"!=typeof this.options_.bandwidth&&this.options_.useBandwidthFromLocalStorage){var storedObject=getVhsLocalStorage();storedObject&&storedObject.bandwidth&&(this.options_.bandwidth=storedObject.bandwidth,this.tech_.trigger({type:"usage",name:"vhs-bandwidth-from-local-storage"}),this.tech_.trigger({type:"usage",name:"hls-bandwidth-from-local-storage"})),storedObject&&storedObject.throughput&&(this.options_.throughput=storedObject.throughput,this.tech_.trigger({type:"usage",name:"vhs-throughput-from-local-storage"}),this.tech_.trigger({type:"usage",name:"hls-throughput-from-local-storage"}))}"number"!=typeof this.options_.bandwidth&&(this.options_.bandwidth=Config.INITIAL_BANDWIDTH),this.options_.enableLowInitialPlaylist=this.options_.enableLowInitialPlaylist&&this.options_.bandwidth===Config.INITIAL_BANDWIDTH,["withCredentials","useDevicePixelRatio","limitRenditionByPlayerDimensions","bandwidth","smoothQualityChange","customTagParsers","customTagMappers","handleManifestRedirects","cacheEncryptionKeys","playlistSelector","initialPlaylistSelector","experimentalBufferBasedABR","liveRangeSafeTimeDelta","experimentalLLHLS","useNetworkInformationApi","useDtsForTimestampOffset","experimentalExactManifestTimings","experimentalLeastPixelDiffSelector"].forEach((function(option){void 0!==_this2.source_[option]&&(_this2.options_[option]=_this2.source_[option])})),this.limitRenditionByPlayerDimensions=this.options_.limitRenditionByPlayerDimensions,this.useDevicePixelRatio=this.options_.useDevicePixelRatio},_proto.src=function(_src,type){var _this3=this;if(_src){var dataUri;this.setOptions_(),this.options_.src=0===(dataUri=this.source_.src).toLowerCase().indexOf("data:application/vnd.videojs.vhs+json,")?JSON.parse(dataUri.substring(dataUri.indexOf(",")+1)):dataUri,this.options_.tech=this.tech_,this.options_.externVhs=Vhs,this.options_.sourceType=simpleTypeFromSourceType(type),this.options_.seekTo=function(time){_this3.tech_.setCurrentTime(time)},this.options_.smoothQualityChange&&videojs.log.warn("smoothQualityChange is deprecated and will be removed in the next major version"),this.masterPlaylistController_=new MasterPlaylistController(this.options_);var playbackWatcherOptions=videojs.mergeOptions({liveRangeSafeTimeDelta:.1},this.options_,{seekable:function(){return _this3.seekable()},media:function(){return _this3.masterPlaylistController_.media()},masterPlaylistController:this.masterPlaylistController_});this.playbackWatcher_=new PlaybackWatcher(playbackWatcherOptions),this.masterPlaylistController_.on("error",(function(){var player=videojs.players[_this3.tech_.options_.playerId],error=_this3.masterPlaylistController_.error;"object"!=typeof error||error.code?"string"==typeof error&&(error={message:error,code:3}):error.code=3,player.error(error)}));var defaultSelector=this.options_.experimentalBufferBasedABR?Vhs.movingAverageBandwidthSelector(.55):Vhs.STANDARD_PLAYLIST_SELECTOR;this.masterPlaylistController_.selectPlaylist=this.selectPlaylist?this.selectPlaylist.bind(this):defaultSelector.bind(this),this.masterPlaylistController_.selectInitialPlaylist=Vhs.INITIAL_PLAYLIST_SELECTOR.bind(this),this.playlists=this.masterPlaylistController_.masterPlaylistLoader_,this.mediaSource=this.masterPlaylistController_.mediaSource,Object.defineProperties(this,{selectPlaylist:{get:function(){return this.masterPlaylistController_.selectPlaylist},set:function(selectPlaylist){this.masterPlaylistController_.selectPlaylist=selectPlaylist.bind(this)}},throughput:{get:function(){return this.masterPlaylistController_.mainSegmentLoader_.throughput.rate},set:function(throughput){this.masterPlaylistController_.mainSegmentLoader_.throughput.rate=throughput,this.masterPlaylistController_.mainSegmentLoader_.throughput.count=1}},bandwidth:{get:function(){var playerBandwidthEst=this.masterPlaylistController_.mainSegmentLoader_.bandwidth,networkInformation=window.navigator.connection||window.navigator.mozConnection||window.navigator.webkitConnection;if(this.options_.useNetworkInformationApi&&networkInformation){var networkInfoBandwidthEstBitsPerSec=1e3*networkInformation.downlink*1e3;playerBandwidthEst=networkInfoBandwidthEstBitsPerSec>=1e7&&playerBandwidthEst>=1e7?Math.max(playerBandwidthEst,networkInfoBandwidthEstBitsPerSec):networkInfoBandwidthEstBitsPerSec}return playerBandwidthEst},set:function(bandwidth){this.masterPlaylistController_.mainSegmentLoader_.bandwidth=bandwidth,this.masterPlaylistController_.mainSegmentLoader_.throughput={rate:0,count:0}}},systemBandwidth:{get:function(){var invThroughput,invBandwidth=1/(this.bandwidth||1);return invThroughput=this.throughput>0?1/this.throughput:0,Math.floor(1/(invBandwidth+invThroughput))},set:function(){videojs.log.error('The "systemBandwidth" property is read-only')}}}),this.options_.bandwidth&&(this.bandwidth=this.options_.bandwidth),this.options_.throughput&&(this.throughput=this.options_.throughput),Object.defineProperties(this.stats,{bandwidth:{get:function(){return _this3.bandwidth||0},enumerable:!0},mediaRequests:{get:function(){return _this3.masterPlaylistController_.mediaRequests_()||0},enumerable:!0},mediaRequestsAborted:{get:function(){return _this3.masterPlaylistController_.mediaRequestsAborted_()||0},enumerable:!0},mediaRequestsTimedout:{get:function(){return _this3.masterPlaylistController_.mediaRequestsTimedout_()||0},enumerable:!0},mediaRequestsErrored:{get:function(){return _this3.masterPlaylistController_.mediaRequestsErrored_()||0},enumerable:!0},mediaTransferDuration:{get:function(){return _this3.masterPlaylistController_.mediaTransferDuration_()||0},enumerable:!0},mediaBytesTransferred:{get:function(){return _this3.masterPlaylistController_.mediaBytesTransferred_()||0},enumerable:!0},mediaSecondsLoaded:{get:function(){return _this3.masterPlaylistController_.mediaSecondsLoaded_()||0},enumerable:!0},mediaAppends:{get:function(){return _this3.masterPlaylistController_.mediaAppends_()||0},enumerable:!0},mainAppendsToLoadedData:{get:function(){return _this3.masterPlaylistController_.mainAppendsToLoadedData_()||0},enumerable:!0},audioAppendsToLoadedData:{get:function(){return _this3.masterPlaylistController_.audioAppendsToLoadedData_()||0},enumerable:!0},appendsToLoadedData:{get:function(){return _this3.masterPlaylistController_.appendsToLoadedData_()||0},enumerable:!0},timeToLoadedData:{get:function(){return _this3.masterPlaylistController_.timeToLoadedData_()||0},enumerable:!0},buffered:{get:function(){return timeRangesToArray(_this3.tech_.buffered())},enumerable:!0},currentTime:{get:function(){return _this3.tech_.currentTime()},enumerable:!0},currentSource:{get:function(){return _this3.tech_.currentSource_},enumerable:!0},currentTech:{get:function(){return _this3.tech_.name_},enumerable:!0},duration:{get:function(){return _this3.tech_.duration()},enumerable:!0},master:{get:function(){return _this3.playlists.master},enumerable:!0},playerDimensions:{get:function(){return _this3.tech_.currentDimensions()},enumerable:!0},seekable:{get:function(){return timeRangesToArray(_this3.tech_.seekable())},enumerable:!0},timestamp:{get:function(){return Date.now()},enumerable:!0},videoPlaybackQuality:{get:function(){return _this3.tech_.getVideoPlaybackQuality()},enumerable:!0}}),this.tech_.one("canplay",this.masterPlaylistController_.setupFirstPlay.bind(this.masterPlaylistController_)),this.tech_.on("bandwidthupdate",(function(){_this3.options_.useBandwidthFromLocalStorage&&function(options){if(!window.localStorage)return!1;var objectToStore=getVhsLocalStorage();objectToStore=objectToStore?videojs.mergeOptions(objectToStore,options):options;try{window.localStorage.setItem("videojs-vhs",JSON.stringify(objectToStore))}catch(e){return!1}}({bandwidth:_this3.bandwidth,throughput:Math.round(_this3.throughput)})})),this.masterPlaylistController_.on("selectedinitialmedia",(function(){var vhsHandler;(vhsHandler=_this3).representations=function(){var master=vhsHandler.masterPlaylistController_.master(),playlists=isAudioOnly(master)?vhsHandler.masterPlaylistController_.getAudioTrackPlaylists_():master.playlists;return playlists?playlists.filter((function(media){return!isIncompatible(media)})).map((function(e,i){return new Representation(vhsHandler,e,e.id)})):[]}})),this.masterPlaylistController_.sourceUpdater_.on("createdsourcebuffers",(function(){_this3.setupEme_()})),this.on(this.masterPlaylistController_,"progress",(function(){this.tech_.trigger("progress")})),this.on(this.masterPlaylistController_,"firstplay",(function(){this.ignoreNextSeekingEvent_=!0})),this.setupQualityLevels_(),this.tech_.el()&&(this.mediaSourceUrl_=window.URL.createObjectURL(this.masterPlaylistController_.mediaSource),this.tech_.src(this.mediaSourceUrl_))}},_proto.createKeySessions_=function(){var _this4=this,audioPlaylistLoader=this.masterPlaylistController_.mediaTypes_.AUDIO.activePlaylistLoader;this.logger_("waiting for EME key session creation"),waitForKeySessionCreation({player:this.player_,sourceKeySystems:this.source_.keySystems,audioMedia:audioPlaylistLoader&&audioPlaylistLoader.media(),mainPlaylists:this.playlists.master.playlists}).then((function(){_this4.logger_("created EME key session"),_this4.masterPlaylistController_.sourceUpdater_.initializedEme()})).catch((function(err){_this4.logger_("error while creating EME key session",err),_this4.player_.error({message:"Failed to initialize media keys for EME",code:3})}))},_proto.handleWaitingForKey_=function(){this.logger_("waitingforkey fired, attempting to create any new key sessions"),this.createKeySessions_()},_proto.setupEme_=function(){var _this5=this,audioPlaylistLoader=this.masterPlaylistController_.mediaTypes_.AUDIO.activePlaylistLoader,didSetupEmeOptions=setupEmeOptions({player:this.player_,sourceKeySystems:this.source_.keySystems,media:this.playlists.media(),audioMedia:audioPlaylistLoader&&audioPlaylistLoader.media()});this.player_.tech_.on("keystatuschange",(function(e){if("output-restricted"===e.status){var masterPlaylist=_this5.masterPlaylistController_.master();if(masterPlaylist&&masterPlaylist.playlists){var _videojs$log,excludedHDPlaylists=[];if(masterPlaylist.playlists.forEach((function(playlist){playlist&&playlist.attributes&&playlist.attributes.RESOLUTION&&playlist.attributes.RESOLUTION.height>=720&&(!playlist.excludeUntil||playlist.excludeUntil<1/0)&&(playlist.excludeUntil=1/0,excludedHDPlaylists.push(playlist))})),excludedHDPlaylists.length)(_videojs$log=videojs.log).warn.apply(_videojs$log,['DRM keystatus changed to "output-restricted." Removing the following HD playlists that will most likely fail to play and clearing the buffer. This may be due to HDCP restrictions on the stream and the capabilities of the current device.'].concat(excludedHDPlaylists)),_this5.masterPlaylistController_.fastQualityChange_()}}})),this.handleWaitingForKey_=this.handleWaitingForKey_.bind(this),this.player_.tech_.on("waitingforkey",this.handleWaitingForKey_),11!==videojs.browser.IE_VERSION&&didSetupEmeOptions?this.createKeySessions_():this.masterPlaylistController_.sourceUpdater_.initializedEme()},_proto.setupQualityLevels_=function(){var _this6=this,player=videojs.players[this.tech_.options_.playerId];player&&player.qualityLevels&&!this.qualityLevels_&&(this.qualityLevels_=player.qualityLevels(),this.masterPlaylistController_.on("selectedinitialmedia",(function(){var qualityLevels,vhs;qualityLevels=_this6.qualityLevels_,(vhs=_this6).representations().forEach((function(rep){qualityLevels.addQualityLevel(rep)})),handleVhsMediaChange(qualityLevels,vhs.playlists)})),this.playlists.on("mediachange",(function(){handleVhsMediaChange(_this6.qualityLevels_,_this6.playlists)})))},VhsHandler.version=function(){return{"@videojs/http-streaming":"2.14.3","mux.js":"6.0.1","mpd-parser":"0.21.1","m3u8-parser":"4.7.1","aes-decrypter":"3.1.3"}},_proto.version=function(){return this.constructor.version()},_proto.canChangeType=function(){return SourceUpdater.canChangeType()},_proto.play=function(){this.masterPlaylistController_.play()},_proto.setCurrentTime=function(currentTime){this.masterPlaylistController_.setCurrentTime(currentTime)},_proto.duration=function(){return this.masterPlaylistController_.duration()},_proto.seekable=function(){return this.masterPlaylistController_.seekable()},_proto.dispose=function(){this.playbackWatcher_&&this.playbackWatcher_.dispose(),this.masterPlaylistController_&&this.masterPlaylistController_.dispose(),this.qualityLevels_&&this.qualityLevels_.dispose(),this.player_&&(delete this.player_.vhs,delete this.player_.dash,delete this.player_.hls),this.tech_&&this.tech_.vhs&&delete this.tech_.vhs,this.tech_&&delete this.tech_.hls,this.mediaSourceUrl_&&window.URL.revokeObjectURL&&(window.URL.revokeObjectURL(this.mediaSourceUrl_),this.mediaSourceUrl_=null),this.tech_&&this.tech_.off("waitingforkey",this.handleWaitingForKey_),_Component.prototype.dispose.call(this)},_proto.convertToProgramTime=function(time,callback){return getProgramTime({playlist:this.masterPlaylistController_.media(),time:time,callback:callback})},_proto.seekToProgramTime=function(programTime,callback,pauseAfterSeek,retryCount){return void 0===pauseAfterSeek&&(pauseAfterSeek=!0),void 0===retryCount&&(retryCount=2),seekToProgramTime({programTime:programTime,playlist:this.masterPlaylistController_.media(),retryCount:retryCount,pauseAfterSeek:pauseAfterSeek,seekTo:this.options_.seekTo,tech:this.options_.tech,callback:callback})},VhsHandler}(videojs.getComponent("Component")),VhsSourceHandler={name:"videojs-http-streaming",VERSION:"2.14.3",canHandleSource:function(srcObj,options){void 0===options&&(options={});var localOptions=videojs.mergeOptions(videojs.options,options);return VhsSourceHandler.canPlayType(srcObj.type,localOptions)},handleSource:function(source,tech,options){void 0===options&&(options={});var localOptions=videojs.mergeOptions(videojs.options,options);return tech.vhs=new VhsHandler(source,tech,localOptions),videojs.hasOwnProperty("hls")||Object.defineProperty(tech,"hls",{get:function(){return videojs.log.warn("player.tech().hls is deprecated. Use player.tech().vhs instead."),tech.vhs},configurable:!0}),tech.vhs.xhr=xhrFactory(),tech.vhs.src(source.src,source.type),tech.vhs},canPlayType:function(type,options){void 0===options&&(options={});var _videojs$mergeOptions=videojs.mergeOptions(videojs.options,options),_videojs$mergeOptions2=_videojs$mergeOptions.vhs,_videojs$mergeOptions3=(_videojs$mergeOptions2=void 0===_videojs$mergeOptions2?{}:_videojs$mergeOptions2).overrideNative,overrideNative=void 0===_videojs$mergeOptions3?!videojs.browser.IS_ANY_SAFARI:_videojs$mergeOptions3,_videojs$mergeOptions4=_videojs$mergeOptions.hls,_videojs$mergeOptions5=(_videojs$mergeOptions4=void 0===_videojs$mergeOptions4?{}:_videojs$mergeOptions4).overrideNative,legacyOverrideNative=void 0!==_videojs$mergeOptions5&&_videojs$mergeOptions5,supportedType=simpleTypeFromSourceType(type);return supportedType&&(!Vhs.supportsTypeNatively(supportedType)||legacyOverrideNative||overrideNative)?"maybe":""}};(browserSupportsCodec("avc1.4d400d,mp4a.40.2")&&videojs.getTech("Html5").registerSourceHandler(VhsSourceHandler,0),videojs.VhsHandler=VhsHandler,Object.defineProperty(videojs,"HlsHandler",{get:function(){return videojs.log.warn("videojs.HlsHandler is deprecated. Use videojs.VhsHandler instead."),VhsHandler},configurable:!0}),videojs.VhsSourceHandler=VhsSourceHandler,Object.defineProperty(videojs,"HlsSourceHandler",{get:function(){return videojs.log.warn("videojs.HlsSourceHandler is deprecated. Use videojs.VhsSourceHandler instead."),VhsSourceHandler},configurable:!0}),videojs.Vhs=Vhs,Object.defineProperty(videojs,"Hls",{get:function(){return videojs.log.warn("videojs.Hls is deprecated. Use videojs.Vhs instead."),Vhs},configurable:!0}),videojs.use||(videojs.registerComponent("Hls",Vhs),videojs.registerComponent("Vhs",Vhs)),videojs.options.vhs=videojs.options.vhs||{},videojs.options.hls=videojs.options.hls||{},videojs.getPlugin&&videojs.getPlugin("reloadSourceOnError"))||(videojs.registerPlugin||videojs.plugin)("reloadSourceOnError",(function(options){initPlugin(this,options)}));return videojs}));
+var lib=createXHR,default_1=createXHR;function initParams(uri,options,callback){var params=uri;return isFunction_1(options)?(callback=options,"string"==typeof uri&&(params={uri:uri})):params=_extends_1({},options,{uri:uri}),params.callback=callback,params}function createXHR(uri,options,callback){return _createXHR(options=initParams(uri,options,callback))}function _createXHR(options){if(void 0===options.callback)throw new Error("callback argument missing");var called=!1,callback=function(err,response,body){called||(called=!0,options.callback(err,response,body))};function getBody(){var body=void 0;if(body=xhr.response?xhr.response:xhr.responseText||function(xhr){try{if("document"===xhr.responseType)return xhr.responseXML;var firefoxBugTakenEffect=xhr.responseXML&&"parsererror"===xhr.responseXML.documentElement.nodeName;if(""===xhr.responseType&&!firefoxBugTakenEffect)return xhr.responseXML}catch(e){}return null}(xhr),isJson)try{body=JSON.parse(body)}catch(e){}return body}function errorFunc(evt){return clearTimeout(timeoutTimer),evt instanceof Error||(evt=new Error(""+(evt||"Unknown XMLHttpRequest Error"))),evt.statusCode=0,callback(evt,failureResponse)}function loadFunc(){if(!aborted){var status;clearTimeout(timeoutTimer),status=options.useXDR&&void 0===xhr.status?200:1223===xhr.status?204:xhr.status;var response=failureResponse,err=null;return 0!==status?(response={body:getBody(),statusCode:status,method:method,headers:{},url:uri,rawRequest:xhr},xhr.getAllResponseHeaders&&(response.headers=function(headers){var result={};return headers?(headers.trim().split("\n").forEach((function(row){var index=row.indexOf(":"),key=row.slice(0,index).trim().toLowerCase(),value=row.slice(index+1).trim();void 0===result[key]?result[key]=value:Array.isArray(result[key])?result[key].push(value):result[key]=[result[key],value]})),result):result}(xhr.getAllResponseHeaders()))):err=new Error("Internal XMLHttpRequest Error"),callback(err,response,response.body)}}var key,aborted,xhr=options.xhr||null;xhr||(xhr=options.cors||options.useXDR?new createXHR.XDomainRequest:new createXHR.XMLHttpRequest);var timeoutTimer,uri=xhr.url=options.uri||options.url,method=xhr.method=options.method||"GET",body=options.body||options.data,headers=xhr.headers=options.headers||{},sync=!!options.sync,isJson=!1,failureResponse={body:void 0,headers:{},statusCode:0,method:method,url:uri,rawRequest:xhr};if("json"in options&&!1!==options.json&&(isJson=!0,headers.accept||headers.Accept||(headers.Accept="application/json"),"GET"!==method&&"HEAD"!==method&&(headers["content-type"]||headers["Content-Type"]||(headers["Content-Type"]="application/json"),body=JSON.stringify(!0===options.json?body:options.json))),xhr.onreadystatechange=function(){4===xhr.readyState&&setTimeout(loadFunc,0)},xhr.onload=loadFunc,xhr.onerror=errorFunc,xhr.onprogress=function(){},xhr.onabort=function(){aborted=!0},xhr.ontimeout=errorFunc,xhr.open(method,uri,!sync,options.username,options.password),sync||(xhr.withCredentials=!!options.withCredentials),!sync&&options.timeout>0&&(timeoutTimer=setTimeout((function(){if(!aborted){aborted=!0,xhr.abort("timeout");var e=new Error("XMLHttpRequest timeout");e.code="ETIMEDOUT",errorFunc(e)}}),options.timeout)),xhr.setRequestHeader)for(key in headers)headers.hasOwnProperty(key)&&xhr.setRequestHeader(key,headers[key]);else if(options.headers&&!function(obj){for(var i in obj)if(obj.hasOwnProperty(i))return!1;return!0}(options.headers))throw new Error("Headers cannot be set on an XDomainRequest object");return"responseType"in options&&(xhr.responseType=options.responseType),"beforeSend"in options&&"function"==typeof options.beforeSend&&options.beforeSend(xhr),xhr.send(body||null),xhr}createXHR.XMLHttpRequest=window_1.XMLHttpRequest||function(){},createXHR.XDomainRequest="withCredentials"in new createXHR.XMLHttpRequest?createXHR.XMLHttpRequest:window_1.XDomainRequest,function(array,iterator){for(var i=0;i<array.length;i++)iterator(array[i])}(["get","put","post","patch","head","delete"],(function(method){createXHR["delete"===method?"del":method]=function(uri,options,callback){return(options=initParams(uri,options,callback)).method=method.toUpperCase(),_createXHR(options)}})),lib.default=default_1;const parseCues=function(srcContent,track){const parser=new window.WebVTT.Parser(window,window.vttjs,window.WebVTT.StringDecoder()),errors=[];parser.oncue=function(cue){track.addCue(cue)},parser.onparsingerror=function(error){errors.push(error)},parser.onflush=function(){track.trigger({type:"loadeddata",target:track})},parser.parse(srcContent),errors.length>0&&(window.console&&window.console.groupCollapsed&&window.console.groupCollapsed("Text Track parsing errors for ".concat(track.src)),errors.forEach((error=>log$1.error(error))),window.console&&window.console.groupEnd&&window.console.groupEnd()),parser.flush()},loadTrack=function(src,track){const opts={uri:src},crossOrigin=isCrossOrigin(src);crossOrigin&&(opts.cors=crossOrigin);const withCredentials="use-credentials"===track.tech_.crossOrigin();withCredentials&&(opts.withCredentials=withCredentials),lib(opts,bind_(this,(function(err,response,responseBody){if(err)return log$1.error(err,response);track.loaded_=!0,"function"!=typeof window.WebVTT?track.tech_&&track.tech_.any(["vttjsloaded","vttjserror"],(event=>{if("vttjserror"!==event.type)return parseCues(responseBody,track);log$1.error("vttjs failed to load, stopping trying to process ".concat(track.src))})):parseCues(responseBody,track)})))};class TextTrack extends Track{constructor(){let options=arguments.length>0&&void 0!==arguments[0]?arguments[0]:{};if(!options.tech)throw new Error("A tech was not provided.");const settings=merge$2(options,{kind:TextTrackKind[options.kind]||"subtitles",language:options.language||options.srclang||""});let mode=TextTrackMode[settings.mode]||"disabled";const default_=settings.default;"metadata"!==settings.kind&&"chapters"!==settings.kind||(mode="hidden"),super(settings),this.tech_=settings.tech,this.cues_=[],this.activeCues_=[],this.preload_=!1!==this.tech_.preloadTextTracks;const cues=new TextTrackCueList(this.cues_),activeCues=new TextTrackCueList(this.activeCues_);let changed=!1;this.timeupdateHandler=bind_(this,(function(){let event=arguments.length>0&&void 0!==arguments[0]?arguments[0]:{};this.tech_.isDisposed()||(this.tech_.isReady_?(this.activeCues=this.activeCues,changed&&(this.trigger("cuechange"),changed=!1),"timeupdate"!==event.type&&(this.rvf_=this.tech_.requestVideoFrameCallback(this.timeupdateHandler))):"timeupdate"!==event.type&&(this.rvf_=this.tech_.requestVideoFrameCallback(this.timeupdateHandler)))}));this.tech_.one("dispose",(()=>{this.stopTracking()})),"disabled"!==mode&&this.startTracking(),Object.defineProperties(this,{default:{get:()=>default_,set(){}},mode:{get:()=>mode,set(newMode){TextTrackMode[newMode]&&mode!==newMode&&(mode=newMode,this.preload_||"disabled"===mode||0!==this.cues.length||loadTrack(this.src,this),this.stopTracking(),"disabled"!==mode&&this.startTracking(),this.trigger("modechange"))}},cues:{get(){return this.loaded_?cues:null},set(){}},activeCues:{get(){if(!this.loaded_)return null;if(0===this.cues.length)return activeCues;const ct=this.tech_.currentTime(),active=[];for(let i=0,l=this.cues.length;i<l;i++){const cue=this.cues[i];cue.startTime<=ct&&cue.endTime>=ct&&active.push(cue)}if(changed=!1,active.length!==this.activeCues_.length)changed=!0;else for(let i=0;i<active.length;i++)-1===this.activeCues_.indexOf(active[i])&&(changed=!0);return this.activeCues_=active,activeCues.setCues_(this.activeCues_),activeCues},set(){}}}),settings.src?(this.src=settings.src,this.preload_||(this.loaded_=!0),(this.preload_||"subtitles"!==settings.kind&&"captions"!==settings.kind)&&loadTrack(this.src,this)):this.loaded_=!0}startTracking(){this.rvf_=this.tech_.requestVideoFrameCallback(this.timeupdateHandler),this.tech_.on("timeupdate",this.timeupdateHandler)}stopTracking(){this.rvf_&&(this.tech_.cancelVideoFrameCallback(this.rvf_),this.rvf_=void 0),this.tech_.off("timeupdate",this.timeupdateHandler)}addCue(originalCue){let cue=originalCue;if(window.vttjs&&!(originalCue instanceof window.vttjs.VTTCue)){cue=new window.vttjs.VTTCue(originalCue.startTime,originalCue.endTime,originalCue.text);for(const prop in originalCue)prop in cue||(cue[prop]=originalCue[prop]);cue.id=originalCue.id,cue.originalCue_=originalCue}const tracks=this.tech_.textTracks();for(let i=0;i<tracks.length;i++)tracks[i]!==this&&tracks[i].removeCue(cue);this.cues_.push(cue),this.cues.setCues_(this.cues_)}removeCue(removeCue){let i=this.cues_.length;for(;i--;){const cue=this.cues_[i];if(cue===removeCue||cue.originalCue_&&cue.originalCue_===removeCue){this.cues_.splice(i,1),this.cues.setCues_(this.cues_);break}}}}TextTrack.prototype.allowedEvents_={cuechange:"cuechange"};class AudioTrack extends Track{constructor(){let options=arguments.length>0&&void 0!==arguments[0]?arguments[0]:{};const settings=merge$2(options,{kind:AudioTrackKind[options.kind]||""});super(settings);let enabled=!1;Object.defineProperty(this,"enabled",{get:()=>enabled,set(newEnabled){"boolean"==typeof newEnabled&&newEnabled!==enabled&&(enabled=newEnabled,this.trigger("enabledchange"))}}),settings.enabled&&(this.enabled=settings.enabled),this.loaded_=!0}}class VideoTrack extends Track{constructor(){let options=arguments.length>0&&void 0!==arguments[0]?arguments[0]:{};const settings=merge$2(options,{kind:VideoTrackKind[options.kind]||""});super(settings);let selected=!1;Object.defineProperty(this,"selected",{get:()=>selected,set(newSelected){"boolean"==typeof newSelected&&newSelected!==selected&&(selected=newSelected,this.trigger("selectedchange"))}}),settings.selected&&(this.selected=settings.selected)}}class HTMLTrackElement extends EventTarget$2{constructor(){let readyState,options=arguments.length>0&&void 0!==arguments[0]?arguments[0]:{};super();const track=new TextTrack(options);this.kind=track.kind,this.src=track.src,this.srclang=track.language,this.label=track.label,this.default=track.default,Object.defineProperties(this,{readyState:{get:()=>readyState},track:{get:()=>track}}),readyState=HTMLTrackElement.NONE,track.addEventListener("loadeddata",(()=>{readyState=HTMLTrackElement.LOADED,this.trigger({type:"load",target:this})}))}}HTMLTrackElement.prototype.allowedEvents_={load:"load"},HTMLTrackElement.NONE=0,HTMLTrackElement.LOADING=1,HTMLTrackElement.LOADED=2,HTMLTrackElement.ERROR=3;const NORMAL={audio:{ListClass:class extends TrackList{constructor(){let tracks=arguments.length>0&&void 0!==arguments[0]?arguments[0]:[];for(let i=tracks.length-1;i>=0;i--)if(tracks[i].enabled){disableOthers$1(tracks,tracks[i]);break}super(tracks),this.changing_=!1}addTrack(track){track.enabled&&disableOthers$1(this,track),super.addTrack(track),track.addEventListener&&(track.enabledChange_=()=>{this.changing_||(this.changing_=!0,disableOthers$1(this,track),this.changing_=!1,this.trigger("change"))},track.addEventListener("enabledchange",track.enabledChange_))}removeTrack(rtrack){super.removeTrack(rtrack),rtrack.removeEventListener&&rtrack.enabledChange_&&(rtrack.removeEventListener("enabledchange",rtrack.enabledChange_),rtrack.enabledChange_=null)}},TrackClass:AudioTrack,capitalName:"Audio"},video:{ListClass:class extends TrackList{constructor(){let tracks=arguments.length>0&&void 0!==arguments[0]?arguments[0]:[];for(let i=tracks.length-1;i>=0;i--)if(tracks[i].selected){disableOthers(tracks,tracks[i]);break}super(tracks),this.changing_=!1,Object.defineProperty(this,"selectedIndex",{get(){for(let i=0;i<this.length;i++)if(this[i].selected)return i;return-1},set(){}})}addTrack(track){track.selected&&disableOthers(this,track),super.addTrack(track),track.addEventListener&&(track.selectedChange_=()=>{this.changing_||(this.changing_=!0,disableOthers(this,track),this.changing_=!1,this.trigger("change"))},track.addEventListener("selectedchange",track.selectedChange_))}removeTrack(rtrack){super.removeTrack(rtrack),rtrack.removeEventListener&&rtrack.selectedChange_&&(rtrack.removeEventListener("selectedchange",rtrack.selectedChange_),rtrack.selectedChange_=null)}},TrackClass:VideoTrack,capitalName:"Video"},text:{ListClass:TextTrackList,TrackClass:TextTrack,capitalName:"Text"}};Object.keys(NORMAL).forEach((function(type){NORMAL[type].getterName="".concat(type,"Tracks"),NORMAL[type].privateName="".concat(type,"Tracks_")}));const REMOTE={remoteText:{ListClass:TextTrackList,TrackClass:TextTrack,capitalName:"RemoteText",getterName:"remoteTextTracks",privateName:"remoteTextTracks_"},remoteTextEl:{ListClass:class{constructor(){let trackElements=arguments.length>0&&void 0!==arguments[0]?arguments[0]:[];this.trackElements_=[],Object.defineProperty(this,"length",{get(){return this.trackElements_.length}});for(let i=0,length=trackElements.length;i<length;i++)this.addTrackElement_(trackElements[i])}addTrackElement_(trackElement){const index=this.trackElements_.length;""+index in this||Object.defineProperty(this,index,{get(){return this.trackElements_[index]}}),-1===this.trackElements_.indexOf(trackElement)&&this.trackElements_.push(trackElement)}getTrackElementByTrack_(track){let trackElement_;for(let i=0,length=this.trackElements_.length;i<length;i++)if(track===this.trackElements_[i].track){trackElement_=this.trackElements_[i];break}return trackElement_}removeTrackElement_(trackElement){for(let i=0,length=this.trackElements_.length;i<length;i++)if(trackElement===this.trackElements_[i]){this.trackElements_[i].track&&"function"==typeof this.trackElements_[i].track.off&&this.trackElements_[i].track.off(),"function"==typeof this.trackElements_[i].off&&this.trackElements_[i].off(),this.trackElements_.splice(i,1);break}}},TrackClass:HTMLTrackElement,capitalName:"RemoteTextTrackEls",getterName:"remoteTextTrackEls",privateName:"remoteTextTrackEls_"}},ALL=Object.assign({},NORMAL,REMOTE);REMOTE.names=Object.keys(REMOTE),NORMAL.names=Object.keys(NORMAL),ALL.names=[].concat(REMOTE.names).concat(NORMAL.names);var doccy,topLevel=void 0!==commonjsGlobal?commonjsGlobal:"undefined"!=typeof window?window:{};"undefined"!=typeof document?doccy=document:(doccy=topLevel["__GLOBAL_DOCUMENT_CACHE@4"])||(doccy=topLevel["__GLOBAL_DOCUMENT_CACHE@4"]={});var document_1=doccy,_objCreate=Object.create||function(){function F(){}return function(o){if(1!==arguments.length)throw new Error("Object.create shim only accepts one parameter.");return F.prototype=o,new F}}();function ParsingError(errorData,message){this.name="ParsingError",this.code=errorData.code,this.message=message||errorData.message}function parseTimeStamp(input){function computeSeconds(h,m,s,f){return 3600*(0|h)+60*(0|m)+(0|s)+(0|f)/1e3}var m=input.match(/^(\d+):(\d{1,2})(:\d{1,2})?\.(\d{3})/);return m?m[3]?computeSeconds(m[1],m[2],m[3].replace(":",""),m[4]):m[1]>59?computeSeconds(m[1],m[2],0,m[4]):computeSeconds(0,m[1],m[2],m[4]):null}function Settings(){this.values=_objCreate(null)}function parseOptions(input,callback,keyValueDelim,groupDelim){var groups=groupDelim?input.split(groupDelim):[input];for(var i in groups)if("string"==typeof groups[i]){var kv=groups[i].split(keyValueDelim);if(2===kv.length)callback(kv[0].trim(),kv[1].trim())}}function parseCue(input,cue,regionList){var oInput=input;function consumeTimeStamp(){var ts=parseTimeStamp(input);if(null===ts)throw new ParsingError(ParsingError.Errors.BadTimeStamp,"Malformed timestamp: "+oInput);return input=input.replace(/^[^\sa-zA-Z-]+/,""),ts}function skipWhitespace(){input=input.replace(/^\s+/,"")}if(skipWhitespace(),cue.startTime=consumeTimeStamp(),skipWhitespace(),"--\x3e"!==input.substr(0,3))throw new ParsingError(ParsingError.Errors.BadTimeStamp,"Malformed time stamp (time stamps must be separated by '--\x3e'): "+oInput);input=input.substr(3),skipWhitespace(),cue.endTime=consumeTimeStamp(),skipWhitespace(),function(input,cue){var settings=new Settings;parseOptions(input,(function(k,v){switch(k){case"region":for(var i=regionList.length-1;i>=0;i--)if(regionList[i].id===v){settings.set(k,regionList[i].region);break}break;case"vertical":settings.alt(k,v,["rl","lr"]);break;case"line":var vals=v.split(","),vals0=vals[0];settings.integer(k,vals0),settings.percent(k,vals0)&&settings.set("snapToLines",!1),settings.alt(k,vals0,["auto"]),2===vals.length&&settings.alt("lineAlign",vals[1],["start","center","end"]);break;case"position":vals=v.split(","),settings.percent(k,vals[0]),2===vals.length&&settings.alt("positionAlign",vals[1],["start","center","end"]);break;case"size":settings.percent(k,v);break;case"align":settings.alt(k,v,["start","center","end","left","right"])}}),/:/,/\s/),cue.region=settings.get("region",null),cue.vertical=settings.get("vertical","");try{cue.line=settings.get("line","auto")}catch(e){}cue.lineAlign=settings.get("lineAlign","start"),cue.snapToLines=settings.get("snapToLines",!0),cue.size=settings.get("size",100);try{cue.align=settings.get("align","center")}catch(e){cue.align=settings.get("align","middle")}try{cue.position=settings.get("position","auto")}catch(e){cue.position=settings.get("position",{start:0,left:0,center:50,middle:50,end:100,right:100},cue.align)}cue.positionAlign=settings.get("positionAlign",{start:"start",left:"start",center:"center",middle:"center",end:"end",right:"end"},cue.align)}(input,cue)}ParsingError.prototype=_objCreate(Error.prototype),ParsingError.prototype.constructor=ParsingError,ParsingError.Errors={BadSignature:{code:0,message:"Malformed WebVTT signature."},BadTimeStamp:{code:1,message:"Malformed time stamp."}},Settings.prototype={set:function(k,v){this.get(k)||""===v||(this.values[k]=v)},get:function(k,dflt,defaultKey){return defaultKey?this.has(k)?this.values[k]:dflt[defaultKey]:this.has(k)?this.values[k]:dflt},has:function(k){return k in this.values},alt:function(k,v,a){for(var n=0;n<a.length;++n)if(v===a[n]){this.set(k,v);break}},integer:function(k,v){/^-?\d+$/.test(v)&&this.set(k,parseInt(v,10))},percent:function(k,v){return!!(v.match(/^([\d]{1,3})(\.[\d]*)?%$/)&&(v=parseFloat(v))>=0&&v<=100)&&(this.set(k,v),!0)}};var TEXTAREA_ELEMENT=document_1.createElement&&document_1.createElement("textarea"),TAG_NAME={c:"span",i:"i",b:"b",u:"u",ruby:"ruby",rt:"rt",v:"span",lang:"span"},DEFAULT_COLOR_CLASS={white:"rgba(255,255,255,1)",lime:"rgba(0,255,0,1)",cyan:"rgba(0,255,255,1)",red:"rgba(255,0,0,1)",yellow:"rgba(255,255,0,1)",magenta:"rgba(255,0,255,1)",blue:"rgba(0,0,255,1)",black:"rgba(0,0,0,1)"},TAG_ANNOTATION={v:"title",lang:"lang"},NEEDS_PARENT={rt:"ruby"};function parseContent(window,input){function nextToken(){if(!input)return null;var result,m=input.match(/^([^<]*)(<[^>]*>?)?/);return result=m[1]?m[1]:m[2],input=input.substr(result.length),result}function shouldAdd(current,element){return!NEEDS_PARENT[element.localName]||NEEDS_PARENT[element.localName]===current.localName}function createElement(type,annotation){var tagName=TAG_NAME[type];if(!tagName)return null;var element=window.document.createElement(tagName),name=TAG_ANNOTATION[type];return name&&annotation&&(element[name]=annotation.trim()),element}for(var t,s,rootDiv=window.document.createElement("div"),current=rootDiv,tagStack=[];null!==(t=nextToken());)if("<"!==t[0])current.appendChild(window.document.createTextNode((s=t,TEXTAREA_ELEMENT.innerHTML=s,s=TEXTAREA_ELEMENT.textContent,TEXTAREA_ELEMENT.textContent="",s)));else{if("/"===t[1]){tagStack.length&&tagStack[tagStack.length-1]===t.substr(2).replace(">","")&&(tagStack.pop(),current=current.parentNode);continue}var node,ts=parseTimeStamp(t.substr(1,t.length-2));if(ts){node=window.document.createProcessingInstruction("timestamp",ts),current.appendChild(node);continue}var m=t.match(/^<([^.\s/0-9>]+)(\.[^\s\\>]+)?([^>\\]+)?(\\?)>?$/);if(!m)continue;if(!(node=createElement(m[1],m[3])))continue;if(!shouldAdd(current,node))continue;if(m[2]){var classes=m[2].split(".");classes.forEach((function(cl){var bgColor=/^bg_/.test(cl),colorName=bgColor?cl.slice(3):cl;if(DEFAULT_COLOR_CLASS.hasOwnProperty(colorName)){var propName=bgColor?"background-color":"color",propValue=DEFAULT_COLOR_CLASS[colorName];node.style[propName]=propValue}})),node.className=classes.join(" ")}tagStack.push(m[1]),current.appendChild(node),current=node}return rootDiv}var strongRTLRanges=[[1470,1470],[1472,1472],[1475,1475],[1478,1478],[1488,1514],[1520,1524],[1544,1544],[1547,1547],[1549,1549],[1563,1563],[1566,1610],[1645,1647],[1649,1749],[1765,1766],[1774,1775],[1786,1805],[1807,1808],[1810,1839],[1869,1957],[1969,1969],[1984,2026],[2036,2037],[2042,2042],[2048,2069],[2074,2074],[2084,2084],[2088,2088],[2096,2110],[2112,2136],[2142,2142],[2208,2208],[2210,2220],[8207,8207],[64285,64285],[64287,64296],[64298,64310],[64312,64316],[64318,64318],[64320,64321],[64323,64324],[64326,64449],[64467,64829],[64848,64911],[64914,64967],[65008,65020],[65136,65140],[65142,65276],[67584,67589],[67592,67592],[67594,67637],[67639,67640],[67644,67644],[67647,67669],[67671,67679],[67840,67867],[67872,67897],[67903,67903],[67968,68023],[68030,68031],[68096,68096],[68112,68115],[68117,68119],[68121,68147],[68160,68167],[68176,68184],[68192,68223],[68352,68405],[68416,68437],[68440,68466],[68472,68479],[68608,68680],[126464,126467],[126469,126495],[126497,126498],[126500,126500],[126503,126503],[126505,126514],[126516,126519],[126521,126521],[126523,126523],[126530,126530],[126535,126535],[126537,126537],[126539,126539],[126541,126543],[126545,126546],[126548,126548],[126551,126551],[126553,126553],[126555,126555],[126557,126557],[126559,126559],[126561,126562],[126564,126564],[126567,126570],[126572,126578],[126580,126583],[126585,126588],[126590,126590],[126592,126601],[126603,126619],[126625,126627],[126629,126633],[126635,126651],[1114109,1114109]];function isStrongRTLChar(charCode){for(var i=0;i<strongRTLRanges.length;i++){var currentRange=strongRTLRanges[i];if(charCode>=currentRange[0]&&charCode<=currentRange[1])return!0}return!1}function determineBidi(cueDiv){var nodeStack=[],text="";if(!cueDiv||!cueDiv.childNodes)return"ltr";function pushNodes(nodeStack,node){for(var i=node.childNodes.length-1;i>=0;i--)nodeStack.push(node.childNodes[i])}function nextTextNode(nodeStack){if(!nodeStack||!nodeStack.length)return null;var node=nodeStack.pop(),text=node.textContent||node.innerText;if(text){var m=text.match(/^.*(\n|\r)/);return m?(nodeStack.length=0,m[0]):text}return"ruby"===node.tagName?nextTextNode(nodeStack):node.childNodes?(pushNodes(nodeStack,node),nextTextNode(nodeStack)):void 0}for(pushNodes(nodeStack,cueDiv);text=nextTextNode(nodeStack);)for(var i=0;i<text.length;i++)if(isStrongRTLChar(text.charCodeAt(i)))return"rtl";return"ltr"}function StyleBox(){}function CueStyleBox(window,cue,styleOptions){StyleBox.call(this),this.cue=cue,this.cueDiv=parseContent(window,cue.text);var styles={color:"rgba(255, 255, 255, 1)",backgroundColor:"rgba(0, 0, 0, 0.8)",position:"relative",left:0,right:0,top:0,bottom:0,display:"inline",writingMode:""===cue.vertical?"horizontal-tb":"lr"===cue.vertical?"vertical-lr":"vertical-rl",unicodeBidi:"plaintext"};this.applyStyles(styles,this.cueDiv),this.div=window.document.createElement("div"),styles={direction:determineBidi(this.cueDiv),writingMode:""===cue.vertical?"horizontal-tb":"lr"===cue.vertical?"vertical-lr":"vertical-rl",unicodeBidi:"plaintext",textAlign:"middle"===cue.align?"center":cue.align,font:styleOptions.font,whiteSpace:"pre-line",position:"absolute"},this.applyStyles(styles),this.div.appendChild(this.cueDiv);var textPos=0;switch(cue.positionAlign){case"start":textPos=cue.position;break;case"center":textPos=cue.position-cue.size/2;break;case"end":textPos=cue.position-cue.size}""===cue.vertical?this.applyStyles({left:this.formatStyle(textPos,"%"),width:this.formatStyle(cue.size,"%")}):this.applyStyles({top:this.formatStyle(textPos,"%"),height:this.formatStyle(cue.size,"%")}),this.move=function(box){this.applyStyles({top:this.formatStyle(box.top,"px"),bottom:this.formatStyle(box.bottom,"px"),left:this.formatStyle(box.left,"px"),right:this.formatStyle(box.right,"px"),height:this.formatStyle(box.height,"px"),width:this.formatStyle(box.width,"px")})}}function BoxPosition(obj){var lh,height,width,top;if(obj.div){height=obj.div.offsetHeight,width=obj.div.offsetWidth,top=obj.div.offsetTop;var rects=(rects=obj.div.childNodes)&&(rects=rects[0])&&rects.getClientRects&&rects.getClientRects();obj=obj.div.getBoundingClientRect(),lh=rects?Math.max(rects[0]&&rects[0].height||0,obj.height/rects.length):0}this.left=obj.left,this.right=obj.right,this.top=obj.top||top,this.height=obj.height||height,this.bottom=obj.bottom||top+(obj.height||height),this.width=obj.width||width,this.lineHeight=void 0!==lh?lh:obj.lineHeight}function moveBoxToLinePosition(window,styleBox,containerBox,boxPositions){var boxPosition=new BoxPosition(styleBox),cue=styleBox.cue,linePos=function(cue){if("number"==typeof cue.line&&(cue.snapToLines||cue.line>=0&&cue.line<=100))return cue.line;if(!cue.track||!cue.track.textTrackList||!cue.track.textTrackList.mediaElement)return-1;for(var track=cue.track,trackList=track.textTrackList,count=0,i=0;i<trackList.length&&trackList[i]!==track;i++)"showing"===trackList[i].mode&&count++;return-1*++count}(cue),axis=[];if(cue.snapToLines){var size;switch(cue.vertical){case"":axis=["+y","-y"],size="height";break;case"rl":axis=["+x","-x"],size="width";break;case"lr":axis=["-x","+x"],size="width"}var step=boxPosition.lineHeight,position=step*Math.round(linePos),maxPosition=containerBox[size]+step,initialAxis=axis[0];Math.abs(position)>maxPosition&&(position=position<0?-1:1,position*=Math.ceil(maxPosition/step)*step),linePos<0&&(position+=""===cue.vertical?containerBox.height:containerBox.width,axis=axis.reverse()),boxPosition.move(initialAxis,position)}else{var calculatedPercentage=boxPosition.lineHeight/containerBox.height*100;switch(cue.lineAlign){case"center":linePos-=calculatedPercentage/2;break;case"end":linePos-=calculatedPercentage}switch(cue.vertical){case"":styleBox.applyStyles({top:styleBox.formatStyle(linePos,"%")});break;case"rl":styleBox.applyStyles({left:styleBox.formatStyle(linePos,"%")});break;case"lr":styleBox.applyStyles({right:styleBox.formatStyle(linePos,"%")})}axis=["+y","-x","+x","-y"],boxPosition=new BoxPosition(styleBox)}var bestPosition=function(b,axis){for(var bestPosition,specifiedPosition=new BoxPosition(b),percentage=1,i=0;i<axis.length;i++){for(;b.overlapsOppositeAxis(containerBox,axis[i])||b.within(containerBox)&&b.overlapsAny(boxPositions);)b.move(axis[i]);if(b.within(containerBox))return b;var p=b.intersectPercentage(containerBox);percentage>p&&(bestPosition=new BoxPosition(b),percentage=p),b=new BoxPosition(specifiedPosition)}return bestPosition||specifiedPosition}(boxPosition,axis);styleBox.move(bestPosition.toCSSCompatValues(containerBox))}function WebVTT$1(){}StyleBox.prototype.applyStyles=function(styles,div){for(var prop in div=div||this.div,styles)styles.hasOwnProperty(prop)&&(div.style[prop]=styles[prop])},StyleBox.prototype.formatStyle=function(val,unit){return 0===val?0:val+unit},CueStyleBox.prototype=_objCreate(StyleBox.prototype),CueStyleBox.prototype.constructor=CueStyleBox,BoxPosition.prototype.move=function(axis,toMove){switch(toMove=void 0!==toMove?toMove:this.lineHeight,axis){case"+x":this.left+=toMove,this.right+=toMove;break;case"-x":this.left-=toMove,this.right-=toMove;break;case"+y":this.top+=toMove,this.bottom+=toMove;break;case"-y":this.top-=toMove,this.bottom-=toMove}},BoxPosition.prototype.overlaps=function(b2){return this.left<b2.right&&this.right>b2.left&&this.top<b2.bottom&&this.bottom>b2.top},BoxPosition.prototype.overlapsAny=function(boxes){for(var i=0;i<boxes.length;i++)if(this.overlaps(boxes[i]))return!0;return!1},BoxPosition.prototype.within=function(container){return this.top>=container.top&&this.bottom<=container.bottom&&this.left>=container.left&&this.right<=container.right},BoxPosition.prototype.overlapsOppositeAxis=function(container,axis){switch(axis){case"+x":return this.left<container.left;case"-x":return this.right>container.right;case"+y":return this.top<container.top;case"-y":return this.bottom>container.bottom}},BoxPosition.prototype.intersectPercentage=function(b2){return Math.max(0,Math.min(this.right,b2.right)-Math.max(this.left,b2.left))*Math.max(0,Math.min(this.bottom,b2.bottom)-Math.max(this.top,b2.top))/(this.height*this.width)},BoxPosition.prototype.toCSSCompatValues=function(reference){return{top:this.top-reference.top,bottom:reference.bottom-this.bottom,left:this.left-reference.left,right:reference.right-this.right,height:this.height,width:this.width}},BoxPosition.getSimpleBoxPosition=function(obj){var height=obj.div?obj.div.offsetHeight:obj.tagName?obj.offsetHeight:0,width=obj.div?obj.div.offsetWidth:obj.tagName?obj.offsetWidth:0,top=obj.div?obj.div.offsetTop:obj.tagName?obj.offsetTop:0;return{left:(obj=obj.div?obj.div.getBoundingClientRect():obj.tagName?obj.getBoundingClientRect():obj).left,right:obj.right,top:obj.top||top,height:obj.height||height,bottom:obj.bottom||top+(obj.height||height),width:obj.width||width}},WebVTT$1.StringDecoder=function(){return{decode:function(data){if(!data)return"";if("string"!=typeof data)throw new Error("Error - expected string data.");return decodeURIComponent(encodeURIComponent(data))}}},WebVTT$1.convertCueToDOMTree=function(window,cuetext){return window&&cuetext?parseContent(window,cuetext):null};WebVTT$1.processCues=function(window,cues,overlay){if(!window||!cues||!overlay)return null;for(;overlay.firstChild;)overlay.removeChild(overlay.firstChild);var paddedOverlay=window.document.createElement("div");if(paddedOverlay.style.position="absolute",paddedOverlay.style.left="0",paddedOverlay.style.right="0",paddedOverlay.style.top="0",paddedOverlay.style.bottom="0",paddedOverlay.style.margin="1.5%",overlay.appendChild(paddedOverlay),function(cues){for(var i=0;i<cues.length;i++)if(cues[i].hasBeenReset||!cues[i].displayState)return!0;return!1}(cues)){var boxPositions=[],containerBox=BoxPosition.getSimpleBoxPosition(paddedOverlay),styleOptions={font:Math.round(.05*containerBox.height*100)/100+"px sans-serif"};!function(){for(var styleBox,cue,i=0;i<cues.length;i++)cue=cues[i],styleBox=new CueStyleBox(window,cue,styleOptions),paddedOverlay.appendChild(styleBox.div),moveBoxToLinePosition(0,styleBox,containerBox,boxPositions),cue.displayState=styleBox.div,boxPositions.push(BoxPosition.getSimpleBoxPosition(styleBox))}()}else for(var i=0;i<cues.length;i++)paddedOverlay.appendChild(cues[i].displayState)},WebVTT$1.Parser=function(window,vttjs,decoder){decoder||(decoder=vttjs,vttjs={}),vttjs||(vttjs={}),this.window=window,this.vttjs=vttjs,this.state="INITIAL",this.buffer="",this.decoder=decoder||new TextDecoder("utf8"),this.regionList=[]},WebVTT$1.Parser.prototype={reportOrThrowError:function(e){if(!(e instanceof ParsingError))throw e;this.onparsingerror&&this.onparsingerror(e)},parse:function(data){var self=this;function collectNextLine(){for(var buffer=self.buffer,pos=0;pos<buffer.length&&"\r"!==buffer[pos]&&"\n"!==buffer[pos];)++pos;var line=buffer.substr(0,pos);return"\r"===buffer[pos]&&++pos,"\n"===buffer[pos]&&++pos,self.buffer=buffer.substr(pos),line}function parseHeader(input){input.match(/X-TIMESTAMP-MAP/)?parseOptions(input,(function(k,v){if("X-TIMESTAMP-MAP"===k)!function(input){var settings=new Settings;parseOptions(input,(function(k,v){switch(k){case"MPEGT":settings.integer(k+"S",v);break;case"LOCA":settings.set(k+"L",parseTimeStamp(v))}}),/[^\d]:/,/,/),self.ontimestampmap&&self.ontimestampmap({MPEGTS:settings.get("MPEGTS"),LOCAL:settings.get("LOCAL")})}(v)}),/=/):parseOptions(input,(function(k,v){if("Region"===k)!function(input){var settings=new Settings;if(parseOptions(input,(function(k,v){switch(k){case"id":settings.set(k,v);break;case"width":settings.percent(k,v);break;case"lines":settings.integer(k,v);break;case"regionanchor":case"viewportanchor":var xy=v.split(",");if(2!==xy.length)break;var anchor=new Settings;if(anchor.percent("x",xy[0]),anchor.percent("y",xy[1]),!anchor.has("x")||!anchor.has("y"))break;settings.set(k+"X",anchor.get("x")),settings.set(k+"Y",anchor.get("y"));break;case"scroll":settings.alt(k,v,["up"])}}),/=/,/\s/),settings.has("id")){var region=new(self.vttjs.VTTRegion||self.window.VTTRegion);region.width=settings.get("width",100),region.lines=settings.get("lines",3),region.regionAnchorX=settings.get("regionanchorX",0),region.regionAnchorY=settings.get("regionanchorY",100),region.viewportAnchorX=settings.get("viewportanchorX",0),region.viewportAnchorY=settings.get("viewportanchorY",100),region.scroll=settings.get("scroll",""),self.onregion&&self.onregion(region),self.regionList.push({id:settings.get("id"),region:region})}}(v)}),/:/)}data&&(self.buffer+=self.decoder.decode(data,{stream:!0}));try{var line;if("INITIAL"===self.state){if(!/\r\n|\n/.test(self.buffer))return this;var m=(line=collectNextLine()).match(/^WEBVTT([ \t].*)?$/);if(!m||!m[0])throw new ParsingError(ParsingError.Errors.BadSignature);self.state="HEADER"}for(var alreadyCollectedLine=!1;self.buffer;){if(!/\r\n|\n/.test(self.buffer))return this;switch(alreadyCollectedLine?alreadyCollectedLine=!1:line=collectNextLine(),self.state){case"HEADER":/:/.test(line)?parseHeader(line):line||(self.state="ID");continue;case"NOTE":line||(self.state="ID");continue;case"ID":if(/^NOTE($|[ \t])/.test(line)){self.state="NOTE";break}if(!line)continue;self.cue=new(self.vttjs.VTTCue||self.window.VTTCue)(0,0,"");try{self.cue.align="center"}catch(e){self.cue.align="middle"}if(self.state="CUE",-1===line.indexOf("--\x3e")){self.cue.id=line;continue}case"CUE":try{parseCue(line,self.cue,self.regionList)}catch(e){self.reportOrThrowError(e),self.cue=null,self.state="BADCUE";continue}self.state="CUETEXT";continue;case"CUETEXT":var hasSubstring=-1!==line.indexOf("--\x3e");if(!line||hasSubstring&&(alreadyCollectedLine=!0)){self.oncue&&self.oncue(self.cue),self.cue=null,self.state="ID";continue}self.cue.text&&(self.cue.text+="\n"),self.cue.text+=line.replace(/\u2028/g,"\n").replace(/u2029/g,"\n");continue;case"BADCUE":line||(self.state="ID");continue}}}catch(e){self.reportOrThrowError(e),"CUETEXT"===self.state&&self.cue&&self.oncue&&self.oncue(self.cue),self.cue=null,self.state="INITIAL"===self.state?"BADWEBVTT":"BADCUE"}return this},flush:function(){try{if(this.buffer+=this.decoder.decode(),(this.cue||"HEADER"===this.state)&&(this.buffer+="\n\n",this.parse()),"INITIAL"===this.state)throw new ParsingError(ParsingError.Errors.BadSignature)}catch(e){this.reportOrThrowError(e)}return this.onflush&&this.onflush(),this}};var vtt=WebVTT$1,directionSetting={"":1,lr:1,rl:1},alignSetting={start:1,center:1,end:1,left:1,right:1,auto:1,"line-left":1,"line-right":1};function findAlignSetting(value){return"string"==typeof value&&(!!alignSetting[value.toLowerCase()]&&value.toLowerCase())}function VTTCue(startTime,endTime,text){this.hasBeenReset=!1;var _id="",_pauseOnExit=!1,_startTime=startTime,_endTime=endTime,_text=text,_region=null,_vertical="",_snapToLines=!0,_line="auto",_lineAlign="start",_position="auto",_positionAlign="auto",_size=100,_align="center";Object.defineProperties(this,{id:{enumerable:!0,get:function(){return _id},set:function(value){_id=""+value}},pauseOnExit:{enumerable:!0,get:function(){return _pauseOnExit},set:function(value){_pauseOnExit=!!value}},startTime:{enumerable:!0,get:function(){return _startTime},set:function(value){if("number"!=typeof value)throw new TypeError("Start time must be set to a number.");_startTime=value,this.hasBeenReset=!0}},endTime:{enumerable:!0,get:function(){return _endTime},set:function(value){if("number"!=typeof value)throw new TypeError("End time must be set to a number.");_endTime=value,this.hasBeenReset=!0}},text:{enumerable:!0,get:function(){return _text},set:function(value){_text=""+value,this.hasBeenReset=!0}},region:{enumerable:!0,get:function(){return _region},set:function(value){_region=value,this.hasBeenReset=!0}},vertical:{enumerable:!0,get:function(){return _vertical},set:function(value){var setting=function(value){return"string"==typeof value&&!!directionSetting[value.toLowerCase()]&&value.toLowerCase()}(value);if(!1===setting)throw new SyntaxError("Vertical: an invalid or illegal direction string was specified.");_vertical=setting,this.hasBeenReset=!0}},snapToLines:{enumerable:!0,get:function(){return _snapToLines},set:function(value){_snapToLines=!!value,this.hasBeenReset=!0}},line:{enumerable:!0,get:function(){return _line},set:function(value){if("number"!=typeof value&&"auto"!==value)throw new SyntaxError("Line: an invalid number or illegal string was specified.");_line=value,this.hasBeenReset=!0}},lineAlign:{enumerable:!0,get:function(){return _lineAlign},set:function(value){var setting=findAlignSetting(value);setting?(_lineAlign=setting,this.hasBeenReset=!0):console.warn("lineAlign: an invalid or illegal string was specified.")}},position:{enumerable:!0,get:function(){return _position},set:function(value){if(value<0||value>100)throw new Error("Position must be between 0 and 100.");_position=value,this.hasBeenReset=!0}},positionAlign:{enumerable:!0,get:function(){return _positionAlign},set:function(value){var setting=findAlignSetting(value);setting?(_positionAlign=setting,this.hasBeenReset=!0):console.warn("positionAlign: an invalid or illegal string was specified.")}},size:{enumerable:!0,get:function(){return _size},set:function(value){if(value<0||value>100)throw new Error("Size must be between 0 and 100.");_size=value,this.hasBeenReset=!0}},align:{enumerable:!0,get:function(){return _align},set:function(value){var setting=findAlignSetting(value);if(!setting)throw new SyntaxError("align: an invalid or illegal alignment string was specified.");_align=setting,this.hasBeenReset=!0}}}),this.displayState=void 0}VTTCue.prototype.getCueAsHTML=function(){return WebVTT.convertCueToDOMTree(window,this.text)};var vttcue=VTTCue,scrollSetting={"":!0,up:!0};function isValidPercentValue(value){return"number"==typeof value&&value>=0&&value<=100}var vttregion=function(){var _width=100,_lines=3,_regionAnchorX=0,_regionAnchorY=100,_viewportAnchorX=0,_viewportAnchorY=100,_scroll="";Object.defineProperties(this,{width:{enumerable:!0,get:function(){return _width},set:function(value){if(!isValidPercentValue(value))throw new Error("Width must be between 0 and 100.");_width=value}},lines:{enumerable:!0,get:function(){return _lines},set:function(value){if("number"!=typeof value)throw new TypeError("Lines must be set to a number.");_lines=value}},regionAnchorY:{enumerable:!0,get:function(){return _regionAnchorY},set:function(value){if(!isValidPercentValue(value))throw new Error("RegionAnchorX must be between 0 and 100.");_regionAnchorY=value}},regionAnchorX:{enumerable:!0,get:function(){return _regionAnchorX},set:function(value){if(!isValidPercentValue(value))throw new Error("RegionAnchorY must be between 0 and 100.");_regionAnchorX=value}},viewportAnchorY:{enumerable:!0,get:function(){return _viewportAnchorY},set:function(value){if(!isValidPercentValue(value))throw new Error("ViewportAnchorY must be between 0 and 100.");_viewportAnchorY=value}},viewportAnchorX:{enumerable:!0,get:function(){return _viewportAnchorX},set:function(value){if(!isValidPercentValue(value))throw new Error("ViewportAnchorX must be between 0 and 100.");_viewportAnchorX=value}},scroll:{enumerable:!0,get:function(){return _scroll},set:function(value){var setting=function(value){return"string"==typeof value&&!!scrollSetting[value.toLowerCase()]&&value.toLowerCase()}(value);!1===setting?console.warn("Scroll: an invalid or illegal string was specified."):_scroll=setting}}})},browserIndex=createCommonjsModule((function(module){var vttjs=module.exports={WebVTT:vtt,VTTCue:vttcue,VTTRegion:vttregion};window_1.vttjs=vttjs,window_1.WebVTT=vttjs.WebVTT;var cueShim=vttjs.VTTCue,regionShim=vttjs.VTTRegion,nativeVTTCue=window_1.VTTCue,nativeVTTRegion=window_1.VTTRegion;vttjs.shim=function(){window_1.VTTCue=cueShim,window_1.VTTRegion=regionShim},vttjs.restore=function(){window_1.VTTCue=nativeVTTCue,window_1.VTTRegion=nativeVTTRegion},window_1.VTTCue||vttjs.shim()}));browserIndex.WebVTT,browserIndex.VTTCue,browserIndex.VTTRegion;class Tech extends Component$1{constructor(){let options=arguments.length>0&&void 0!==arguments[0]?arguments[0]:{},ready=arguments.length>1&&void 0!==arguments[1]?arguments[1]:function(){};options.reportTouchActivity=!1,super(null,options,ready),this.onDurationChange_=e=>this.onDurationChange(e),this.trackProgress_=e=>this.trackProgress(e),this.trackCurrentTime_=e=>this.trackCurrentTime(e),this.stopTrackingCurrentTime_=e=>this.stopTrackingCurrentTime(e),this.disposeSourceHandler_=e=>this.disposeSourceHandler(e),this.queuedHanders_=new Set,this.hasStarted_=!1,this.on("playing",(function(){this.hasStarted_=!0})),this.on("loadstart",(function(){this.hasStarted_=!1})),ALL.names.forEach((name=>{const props=ALL[name];options&&options[props.getterName]&&(this[props.privateName]=options[props.getterName])})),this.featuresProgressEvents||this.manualProgressOn(),this.featuresTimeupdateEvents||this.manualTimeUpdatesOn(),["Text","Audio","Video"].forEach((track=>{!1===options["native".concat(track,"Tracks")]&&(this["featuresNative".concat(track,"Tracks")]=!1)})),!1===options.nativeCaptions||!1===options.nativeTextTracks?this.featuresNativeTextTracks=!1:!0!==options.nativeCaptions&&!0!==options.nativeTextTracks||(this.featuresNativeTextTracks=!0),this.featuresNativeTextTracks||this.emulateTextTracks(),this.preloadTextTracks=!1!==options.preloadTextTracks,this.autoRemoteTextTracks_=new ALL.text.ListClass,this.initTrackListeners(),options.nativeControlsForTouch||this.emitTapEvents(),this.constructor&&(this.name_=this.constructor.name||"Unknown Tech")}triggerSourceset(src){this.isReady_||this.one("ready",(()=>this.setTimeout((()=>this.triggerSourceset(src)),1))),this.trigger({src:src,type:"sourceset"})}manualProgressOn(){this.on("durationchange",this.onDurationChange_),this.manualProgress=!0,this.one("ready",this.trackProgress_)}manualProgressOff(){this.manualProgress=!1,this.stopTrackingProgress(),this.off("durationchange",this.onDurationChange_)}trackProgress(event){this.stopTrackingProgress(),this.progressInterval=this.setInterval(bind_(this,(function(){const numBufferedPercent=this.bufferedPercent();this.bufferedPercent_!==numBufferedPercent&&this.trigger("progress"),this.bufferedPercent_=numBufferedPercent,1===numBufferedPercent&&this.stopTrackingProgress()})),500)}onDurationChange(event){this.duration_=this.duration()}buffered(){return createTimeRanges$1(0,0)}bufferedPercent(){return bufferedPercent(this.buffered(),this.duration_)}stopTrackingProgress(){this.clearInterval(this.progressInterval)}manualTimeUpdatesOn(){this.manualTimeUpdates=!0,this.on("play",this.trackCurrentTime_),this.on("pause",this.stopTrackingCurrentTime_)}manualTimeUpdatesOff(){this.manualTimeUpdates=!1,this.stopTrackingCurrentTime(),this.off("play",this.trackCurrentTime_),this.off("pause",this.stopTrackingCurrentTime_)}trackCurrentTime(){this.currentTimeInterval&&this.stopTrackingCurrentTime(),this.currentTimeInterval=this.setInterval((function(){this.trigger({type:"timeupdate",target:this,manuallyTriggered:!0})}),250)}stopTrackingCurrentTime(){this.clearInterval(this.currentTimeInterval),this.trigger({type:"timeupdate",target:this,manuallyTriggered:!0})}dispose(){this.clearTracks(NORMAL.names),this.manualProgress&&this.manualProgressOff(),this.manualTimeUpdates&&this.manualTimeUpdatesOff(),super.dispose()}clearTracks(types){(types=[].concat(types)).forEach((type=>{const list=this["".concat(type,"Tracks")]()||[];let i=list.length;for(;i--;){const track=list[i];"text"===type&&this.removeRemoteTextTrack(track),list.removeTrack(track)}}))}cleanupAutoTextTracks(){const list=this.autoRemoteTextTracks_||[];let i=list.length;for(;i--;){const track=list[i];this.removeRemoteTextTrack(track)}}reset(){}crossOrigin(){}setCrossOrigin(){}error(err){return void 0!==err&&(this.error_=new MediaError(err),this.trigger("error")),this.error_}played(){return this.hasStarted_?createTimeRanges$1(0,0):createTimeRanges$1()}play(){}setScrubbing(_isScrubbing){}scrubbing(){}setCurrentTime(_seconds){this.manualTimeUpdates&&this.trigger({type:"timeupdate",target:this,manuallyTriggered:!0})}initTrackListeners(){NORMAL.names.forEach((name=>{const props=NORMAL[name],trackListChanges=()=>{this.trigger("".concat(name,"trackchange"))},tracks=this[props.getterName]();tracks.addEventListener("removetrack",trackListChanges),tracks.addEventListener("addtrack",trackListChanges),this.on("dispose",(()=>{tracks.removeEventListener("removetrack",trackListChanges),tracks.removeEventListener("addtrack",trackListChanges)}))}))}addWebVttScript_(){if(!window.WebVTT)if(document.body.contains(this.el())){if(!this.options_["vtt.js"]&&isPlain(browserIndex)&&Object.keys(browserIndex).length>0)return void this.trigger("vttjsloaded");const script=document.createElement("script");script.src=this.options_["vtt.js"]||"https://vjs.zencdn.net/vttjs/0.14.1/vtt.min.js",script.onload=()=>{this.trigger("vttjsloaded")},script.onerror=()=>{this.trigger("vttjserror")},this.on("dispose",(()=>{script.onload=null,script.onerror=null})),window.WebVTT=!0,this.el().parentNode.appendChild(script)}else this.ready(this.addWebVttScript_)}emulateTextTracks(){const tracks=this.textTracks(),remoteTracks=this.remoteTextTracks(),handleAddTrack=e=>tracks.addTrack(e.track),handleRemoveTrack=e=>tracks.removeTrack(e.track);remoteTracks.on("addtrack",handleAddTrack),remoteTracks.on("removetrack",handleRemoveTrack),this.addWebVttScript_();const updateDisplay=()=>this.trigger("texttrackchange"),textTracksChanges=()=>{updateDisplay();for(let i=0;i<tracks.length;i++){const track=tracks[i];track.removeEventListener("cuechange",updateDisplay),"showing"===track.mode&&track.addEventListener("cuechange",updateDisplay)}};textTracksChanges(),tracks.addEventListener("change",textTracksChanges),tracks.addEventListener("addtrack",textTracksChanges),tracks.addEventListener("removetrack",textTracksChanges),this.on("dispose",(function(){remoteTracks.off("addtrack",handleAddTrack),remoteTracks.off("removetrack",handleRemoveTrack),tracks.removeEventListener("change",textTracksChanges),tracks.removeEventListener("addtrack",textTracksChanges),tracks.removeEventListener("removetrack",textTracksChanges);for(let i=0;i<tracks.length;i++){tracks[i].removeEventListener("cuechange",updateDisplay)}}))}addTextTrack(kind,label,language){if(!kind)throw new Error("TextTrack kind is required but was not provided");return function(self,kind,label,language){let options=arguments.length>4&&void 0!==arguments[4]?arguments[4]:{};const tracks=self.textTracks();options.kind=kind,label&&(options.label=label),language&&(options.language=language),options.tech=self;const track=new ALL.text.TrackClass(options);return tracks.addTrack(track),track}(this,kind,label,language)}createRemoteTextTrack(options){const track=merge$2(options,{tech:this});return new REMOTE.remoteTextEl.TrackClass(track)}addRemoteTextTrack(){let options=arguments.length>0&&void 0!==arguments[0]?arguments[0]:{},manualCleanup=arguments.length>1?arguments[1]:void 0;const htmlTrackElement=this.createRemoteTextTrack(options);return"boolean"!=typeof manualCleanup&&(manualCleanup=!1),this.remoteTextTrackEls().addTrackElement_(htmlTrackElement),this.remoteTextTracks().addTrack(htmlTrackElement.track),!1===manualCleanup&&this.ready((()=>this.autoRemoteTextTracks_.addTrack(htmlTrackElement.track))),htmlTrackElement}removeRemoteTextTrack(track){const trackElement=this.remoteTextTrackEls().getTrackElementByTrack_(track);this.remoteTextTrackEls().removeTrackElement_(trackElement),this.remoteTextTracks().removeTrack(track),this.autoRemoteTextTracks_.removeTrack(track)}getVideoPlaybackQuality(){return{}}requestPictureInPicture(){return Promise.reject()}disablePictureInPicture(){return!0}setDisablePictureInPicture(){}requestVideoFrameCallback(cb){const id=newGUID();return!this.isReady_||this.paused()?(this.queuedHanders_.add(id),this.one("playing",(()=>{this.queuedHanders_.has(id)&&(this.queuedHanders_.delete(id),cb())}))):this.requestNamedAnimationFrame(id,cb),id}cancelVideoFrameCallback(id){this.queuedHanders_.has(id)?this.queuedHanders_.delete(id):this.cancelNamedAnimationFrame(id)}setPoster(){}playsinline(){}setPlaysinline(){}overrideNativeAudioTracks(override){}overrideNativeVideoTracks(override){}canPlayType(_type){return""}static canPlayType(_type){return""}static canPlaySource(srcObj,options){return Tech.canPlayType(srcObj.type)}static isTech(component){return component.prototype instanceof Tech||component instanceof Tech||component===Tech}static registerTech(name,tech){if(Tech.techs_||(Tech.techs_={}),!Tech.isTech(tech))throw new Error("Tech ".concat(name," must be a Tech"));if(!Tech.canPlayType)throw new Error("Techs must have a static canPlayType method on them");if(!Tech.canPlaySource)throw new Error("Techs must have a static canPlaySource method on them");return name=toTitleCase$1(name),Tech.techs_[name]=tech,Tech.techs_[toLowerCase(name)]=tech,"Tech"!==name&&Tech.defaultTechOrder_.push(name),tech}static getTech(name){if(name)return Tech.techs_&&Tech.techs_[name]?Tech.techs_[name]:(name=toTitleCase$1(name),window&&window.videojs&&window.videojs[name]?(log$1.warn("The ".concat(name," tech was added to the videojs object when it should be registered using videojs.registerTech(name, tech)")),window.videojs[name]):void 0)}}ALL.names.forEach((function(name){const props=ALL[name];Tech.prototype[props.getterName]=function(){return this[props.privateName]=this[props.privateName]||new props.ListClass,this[props.privateName]}})),Tech.prototype.featuresVolumeControl=!0,Tech.prototype.featuresMuteControl=!0,Tech.prototype.featuresFullscreenResize=!1,Tech.prototype.featuresPlaybackRate=!1,Tech.prototype.featuresProgressEvents=!1,Tech.prototype.featuresSourceset=!1,Tech.prototype.featuresTimeupdateEvents=!1,Tech.prototype.featuresNativeTextTracks=!1,Tech.prototype.featuresVideoFrameCallback=!1,Tech.withSourceHandlers=function(_Tech){_Tech.registerSourceHandler=function(handler,index){let handlers=_Tech.sourceHandlers;handlers||(handlers=_Tech.sourceHandlers=[]),void 0===index&&(index=handlers.length),handlers.splice(index,0,handler)},_Tech.canPlayType=function(type){const handlers=_Tech.sourceHandlers||[];let can;for(let i=0;i<handlers.length;i++)if(can=handlers[i].canPlayType(type),can)return can;return""},_Tech.selectSourceHandler=function(source,options){const handlers=_Tech.sourceHandlers||[];let can;for(let i=0;i<handlers.length;i++)if(can=handlers[i].canHandleSource(source,options),can)return handlers[i];return null},_Tech.canPlaySource=function(srcObj,options){const sh=_Tech.selectSourceHandler(srcObj,options);return sh?sh.canHandleSource(srcObj,options):""};["seekable","seeking","duration"].forEach((function(fnName){const originalFn=this[fnName];"function"==typeof originalFn&&(this[fnName]=function(){return this.sourceHandler_&&this.sourceHandler_[fnName]?this.sourceHandler_[fnName].apply(this.sourceHandler_,arguments):originalFn.apply(this,arguments)})}),_Tech.prototype),_Tech.prototype.setSource=function(source){let sh=_Tech.selectSourceHandler(source,this.options_);sh||(_Tech.nativeSourceHandler?sh=_Tech.nativeSourceHandler:log$1.error("No source handler found for the current source.")),this.disposeSourceHandler(),this.off("dispose",this.disposeSourceHandler_),sh!==_Tech.nativeSourceHandler&&(this.currentSource_=source),this.sourceHandler_=sh.handleSource(source,this,this.options_),this.one("dispose",this.disposeSourceHandler_)},_Tech.prototype.disposeSourceHandler=function(){this.currentSource_&&(this.clearTracks(["audio","video"]),this.currentSource_=null),this.cleanupAutoTextTracks(),this.sourceHandler_&&(this.sourceHandler_.dispose&&this.sourceHandler_.dispose(),this.sourceHandler_=null)}},Component$1.registerComponent("Tech",Tech),Tech.registerTech("Tech",Tech),Tech.defaultTechOrder_=[];const middlewares={},middlewareInstances={},TERMINATOR={};function setSource(player,src,next){player.setTimeout((()=>setSourceHelper(src,middlewares[src.type],next,player)),1)}function mediate(middleware,tech,method){let arg=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null;const callMethod="call"+toTitleCase$1(method),middlewareValue=middleware.reduce(middlewareIterator(callMethod),arg),terminated=middlewareValue===TERMINATOR,returnValue=terminated?null:tech[method](middlewareValue);return executeRight(middleware,method,returnValue,terminated),returnValue}const allowedGetters={buffered:1,currentTime:1,duration:1,muted:1,played:1,paused:1,seekable:1,volume:1,ended:1},allowedSetters={setCurrentTime:1,setMuted:1,setVolume:1},allowedMediators={play:1,pause:1};function middlewareIterator(method){return(value,mw)=>value===TERMINATOR?TERMINATOR:mw[method]?mw[method](value):value}function executeRight(mws,method,value,terminated){for(let i=mws.length-1;i>=0;i--){const mw=mws[i];mw[method]&&mw[method](terminated,value)}}function getOrCreateFactory(player,mwFactory){const mws=middlewareInstances[player.id()];let mw=null;if(null==mws)return mw=mwFactory(player),middlewareInstances[player.id()]=[[mwFactory,mw]],mw;for(let i=0;i<mws.length;i++){const[mwf,mwi]=mws[i];mwf===mwFactory&&(mw=mwi)}return null===mw&&(mw=mwFactory(player),mws.push([mwFactory,mw])),mw}function setSourceHelper(){let src=arguments.length>0&&void 0!==arguments[0]?arguments[0]:{},middleware=arguments.length>1&&void 0!==arguments[1]?arguments[1]:[],next=arguments.length>2?arguments[2]:void 0,player=arguments.length>3?arguments[3]:void 0,acc=arguments.length>4&&void 0!==arguments[4]?arguments[4]:[],lastRun=arguments.length>5&&void 0!==arguments[5]&&arguments[5];const[mwFactory,...mwrest]=middleware;if("string"==typeof mwFactory)setSourceHelper(src,middlewares[mwFactory],next,player,acc,lastRun);else if(mwFactory){const mw=getOrCreateFactory(player,mwFactory);if(!mw.setSource)return acc.push(mw),setSourceHelper(src,mwrest,next,player,acc,lastRun);mw.setSource(Object.assign({},src),(function(err,_src){if(err)return setSourceHelper(src,mwrest,next,player,acc,lastRun);acc.push(mw),setSourceHelper(_src,src.type===_src.type?mwrest:middlewares[_src.type],next,player,acc,lastRun)}))}else mwrest.length?setSourceHelper(src,mwrest,next,player,acc,lastRun):lastRun?next(src,acc):setSourceHelper(src,middlewares["*"],next,player,acc,!0)}const MimetypesKind={opus:"video/ogg",ogv:"video/ogg",mp4:"video/mp4",mov:"video/mp4",m4v:"video/mp4",mkv:"video/x-matroska",m4a:"audio/mp4",mp3:"audio/mpeg",aac:"audio/aac",caf:"audio/x-caf",flac:"audio/flac",oga:"audio/ogg",wav:"audio/wav",m3u8:"application/x-mpegURL",mpd:"application/dash+xml",jpg:"image/jpeg",jpeg:"image/jpeg",gif:"image/gif",png:"image/png",svg:"image/svg+xml",webp:"image/webp"},getMimetype=function(){let src=arguments.length>0&&void 0!==arguments[0]?arguments[0]:"";const ext=getFileExtension(src),mimetype=MimetypesKind[ext.toLowerCase()];return mimetype||""},filterSource=function(src){if(Array.isArray(src)){let newsrc=[];src.forEach((function(srcobj){srcobj=filterSource(srcobj),Array.isArray(srcobj)?newsrc=newsrc.concat(srcobj):isObject$1(srcobj)&&newsrc.push(srcobj)})),src=newsrc}else src="string"==typeof src&&src.trim()?[fixSource({src:src})]:isObject$1(src)&&"string"==typeof src.src&&src.src&&src.src.trim()?[fixSource(src)]:[];return src};function fixSource(src){if(!src.type){const mimetype=getMimetype(src.src);mimetype&&(src.type=mimetype)}return src}Component$1.registerComponent("MediaLoader",class extends Component$1{constructor(player,options,ready){if(super(player,merge$2({createEl:!1},options),ready),options.playerOptions.sources&&0!==options.playerOptions.sources.length)player.src(options.playerOptions.sources);else for(let i=0,j=options.playerOptions.techOrder;i<j.length;i++){const techName=toTitleCase$1(j[i]);let tech=Tech.getTech(techName);if(techName||(tech=Component$1.getComponent(techName)),tech&&tech.isSupported()){player.loadTech_(techName);break}}}});class ClickableComponent extends Component$1{constructor(player,options){super(player,options),this.options_.controlText&&this.controlText(this.options_.controlText),this.handleMouseOver_=e=>this.handleMouseOver(e),this.handleMouseOut_=e=>this.handleMouseOut(e),this.handleClick_=e=>this.handleClick(e),this.handleKeyDown_=e=>this.handleKeyDown(e),this.emitTapEvents(),this.enable()}createEl(){let tag=arguments.length>0&&void 0!==arguments[0]?arguments[0]:"div",props=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{},attributes=arguments.length>2&&void 0!==arguments[2]?arguments[2]:{};props=Object.assign({className:this.buildCSSClass(),tabIndex:0},props),"button"===tag&&log$1.error("Creating a ClickableComponent with an HTML element of ".concat(tag," is not supported; use a Button instead.")),attributes=Object.assign({role:"button"},attributes),this.tabIndex_=props.tabIndex;const el=createEl(tag,props,attributes);return el.appendChild(createEl("span",{className:"vjs-icon-placeholder"},{"aria-hidden":!0})),this.createControlTextEl(el),el}dispose(){this.controlTextEl_=null,super.dispose()}createControlTextEl(el){return this.controlTextEl_=createEl("span",{className:"vjs-control-text"},{"aria-live":"polite"}),el&&el.appendChild(this.controlTextEl_),this.controlText(this.controlText_,el),this.controlTextEl_}controlText(text){let el=arguments.length>1&&void 0!==arguments[1]?arguments[1]:this.el();if(void 0===text)return this.controlText_||"Need Text";const localizedText=this.localize(text);this.controlText_=text,textContent(this.controlTextEl_,localizedText),this.nonIconControl||this.player_.options_.noUITitleAttributes||el.setAttribute("title",localizedText)}buildCSSClass(){return"vjs-control vjs-button ".concat(super.buildCSSClass())}enable(){this.enabled_||(this.enabled_=!0,this.removeClass("vjs-disabled"),this.el_.setAttribute("aria-disabled","false"),void 0!==this.tabIndex_&&this.el_.setAttribute("tabIndex",this.tabIndex_),this.on(["tap","click"],this.handleClick_),this.on("keydown",this.handleKeyDown_))}disable(){this.enabled_=!1,this.addClass("vjs-disabled"),this.el_.setAttribute("aria-disabled","true"),void 0!==this.tabIndex_&&this.el_.removeAttribute("tabIndex"),this.off("mouseover",this.handleMouseOver_),this.off("mouseout",this.handleMouseOut_),this.off(["tap","click"],this.handleClick_),this.off("keydown",this.handleKeyDown_)}handleLanguagechange(){this.controlText(this.controlText_)}handleClick(event){this.options_.clickHandler&&this.options_.clickHandler.call(this,arguments)}handleKeyDown(event){keycode.isEventKey(event,"Space")||keycode.isEventKey(event,"Enter")?(event.preventDefault(),event.stopPropagation(),this.trigger("click")):super.handleKeyDown(event)}}Component$1.registerComponent("ClickableComponent",ClickableComponent);class PosterImage extends ClickableComponent{constructor(player,options){super(player,options),this.update(),this.update_=e=>this.update(e),player.on("posterchange",this.update_)}dispose(){this.player().off("posterchange",this.update_),super.dispose()}createEl(){return createEl("div",{className:"vjs-poster"})}crossOrigin(value){if(void 0===value)return this.$("img")?this.$("img").crossOrigin:this.player_.tech_&&this.player_.tech_.isReady_?this.player_.crossOrigin():this.player_.options_.crossOrigin||this.player_.options_.crossorigin||null;null===value||"anonymous"===value||"use-credentials"===value?this.$("img")&&(this.$("img").crossOrigin=value):this.player_.log.warn('crossOrigin must be null,  "anonymous" or "use-credentials", given "'.concat(value,'"'))}update(event){const url=this.player().poster();this.setSrc(url),url?this.show():this.hide()}setSrc(url){url?(this.$("img")||this.el_.appendChild(createEl("picture",{className:"vjs-poster",tabIndex:-1},{},createEl("img",{loading:"lazy",crossOrigin:this.crossOrigin()},{alt:""}))),this.$("img").src=url):this.el_.textContent=""}handleClick(event){this.player_.controls()&&(this.player_.tech(!0)&&this.player_.tech(!0).focus(),this.player_.paused()?silencePromise(this.player_.play()):this.player_.pause())}}PosterImage.prototype.crossorigin=PosterImage.prototype.crossOrigin,Component$1.registerComponent("PosterImage",PosterImage);const fontMap={monospace:"monospace",sansSerif:"sans-serif",serif:"serif",monospaceSansSerif:'"Andale Mono", "Lucida Console", monospace',monospaceSerif:'"Courier New", monospace',proportionalSansSerif:"sans-serif",proportionalSerif:"serif",casual:'"Comic Sans MS", Impact, fantasy',script:'"Monotype Corsiva", cursive',smallcaps:'"Andale Mono", "Lucida Console", monospace, sans-serif'};function constructColor(color,opacity){let hex;if(4===color.length)hex=color[1]+color[1]+color[2]+color[2]+color[3]+color[3];else{if(7!==color.length)throw new Error("Invalid color code provided, "+color+"; must be formatted as e.g. #f0e or #f604e2.");hex=color.slice(1)}return"rgba("+parseInt(hex.slice(0,2),16)+","+parseInt(hex.slice(2,4),16)+","+parseInt(hex.slice(4,6),16)+","+opacity+")"}function tryUpdateStyle(el,style,rule){try{el.style[style]=rule}catch(e){return}}Component$1.registerComponent("TextTrackDisplay",class extends Component$1{constructor(player,options,ready){super(player,options,ready);const updateDisplayHandler=e=>this.updateDisplay(e);player.on("loadstart",(e=>this.toggleDisplay(e))),player.on("texttrackchange",updateDisplayHandler),player.on("loadedmetadata",(e=>this.preselectTrack(e))),player.ready(bind_(this,(function(){if(player.tech_&&player.tech_.featuresNativeTextTracks)return void this.hide();player.on("fullscreenchange",updateDisplayHandler),player.on("playerresize",updateDisplayHandler);const screenOrientation=window.screen.orientation||window,changeOrientationEvent=window.screen.orientation?"change":"orientationchange";screenOrientation.addEventListener(changeOrientationEvent,updateDisplayHandler),player.on("dispose",(()=>screenOrientation.removeEventListener(changeOrientationEvent,updateDisplayHandler)));const tracks=this.options_.playerOptions.tracks||[];for(let i=0;i<tracks.length;i++)this.player_.addRemoteTextTrack(tracks[i],!0);this.preselectTrack()})))}preselectTrack(){const modes={captions:1,subtitles:1},trackList=this.player_.textTracks(),userPref=this.player_.cache_.selectedLanguage;let firstDesc,firstCaptions,preferredTrack;for(let i=0;i<trackList.length;i++){const track=trackList[i];userPref&&userPref.enabled&&userPref.language&&userPref.language===track.language&&track.kind in modes?track.kind===userPref.kind?preferredTrack=track:preferredTrack||(preferredTrack=track):userPref&&!userPref.enabled?(preferredTrack=null,firstDesc=null,firstCaptions=null):track.default&&("descriptions"!==track.kind||firstDesc?track.kind in modes&&!firstCaptions&&(firstCaptions=track):firstDesc=track)}preferredTrack?preferredTrack.mode="showing":firstCaptions?firstCaptions.mode="showing":firstDesc&&(firstDesc.mode="showing")}toggleDisplay(){this.player_.tech_&&this.player_.tech_.featuresNativeTextTracks?this.hide():this.show()}createEl(){return super.createEl("div",{className:"vjs-text-track-display"},{translate:"yes","aria-live":"off","aria-atomic":"true"})}clearDisplay(){"function"==typeof window.WebVTT&&window.WebVTT.processCues(window,[],this.el_)}updateDisplay(){const tracks=this.player_.textTracks(),allowMultipleShowingTracks=this.options_.allowMultipleShowingTracks;if(this.clearDisplay(),allowMultipleShowingTracks){const showingTracks=[];for(let i=0;i<tracks.length;++i){const track=tracks[i];"showing"===track.mode&&showingTracks.push(track)}return void this.updateForTrack(showingTracks)}let descriptionsTrack=null,captionsSubtitlesTrack=null,i=tracks.length;for(;i--;){const track=tracks[i];"showing"===track.mode&&("descriptions"===track.kind?descriptionsTrack=track:captionsSubtitlesTrack=track)}captionsSubtitlesTrack?("off"!==this.getAttribute("aria-live")&&this.setAttribute("aria-live","off"),this.updateForTrack(captionsSubtitlesTrack)):descriptionsTrack&&("assertive"!==this.getAttribute("aria-live")&&this.setAttribute("aria-live","assertive"),this.updateForTrack(descriptionsTrack))}updateDisplayState(track){const overrides=this.player_.textTrackSettings.getValues(),cues=track.activeCues;let i=cues.length;for(;i--;){const cue=cues[i];if(!cue)continue;const cueDiv=cue.displayState;if(overrides.color&&(cueDiv.firstChild.style.color=overrides.color),overrides.textOpacity&&tryUpdateStyle(cueDiv.firstChild,"color",constructColor(overrides.color||"#fff",overrides.textOpacity)),overrides.backgroundColor&&(cueDiv.firstChild.style.backgroundColor=overrides.backgroundColor),overrides.backgroundOpacity&&tryUpdateStyle(cueDiv.firstChild,"backgroundColor",constructColor(overrides.backgroundColor||"#000",overrides.backgroundOpacity)),overrides.windowColor&&(overrides.windowOpacity?tryUpdateStyle(cueDiv,"backgroundColor",constructColor(overrides.windowColor,overrides.windowOpacity)):cueDiv.style.backgroundColor=overrides.windowColor),overrides.edgeStyle&&("dropshadow"===overrides.edgeStyle?cueDiv.firstChild.style.textShadow="2px 2px 3px ".concat("#222",", 2px 2px 4px ").concat("#222",", 2px 2px 5px ").concat("#222"):"raised"===overrides.edgeStyle?cueDiv.firstChild.style.textShadow="1px 1px ".concat("#222",", 2px 2px ").concat("#222",", 3px 3px ").concat("#222"):"depressed"===overrides.edgeStyle?cueDiv.firstChild.style.textShadow="1px 1px ".concat("#ccc",", 0 1px ").concat("#ccc",", -1px -1px ").concat("#222",", 0 -1px ").concat("#222"):"uniform"===overrides.edgeStyle&&(cueDiv.firstChild.style.textShadow="0 0 4px ".concat("#222",", 0 0 4px ").concat("#222",", 0 0 4px ").concat("#222",", 0 0 4px ").concat("#222"))),overrides.fontPercent&&1!==overrides.fontPercent){const fontSize=window.parseFloat(cueDiv.style.fontSize);cueDiv.style.fontSize=fontSize*overrides.fontPercent+"px",cueDiv.style.height="auto",cueDiv.style.top="auto"}overrides.fontFamily&&"default"!==overrides.fontFamily&&("small-caps"===overrides.fontFamily?cueDiv.firstChild.style.fontVariant="small-caps":cueDiv.firstChild.style.fontFamily=fontMap[overrides.fontFamily])}}updateForTrack(tracks){if(Array.isArray(tracks)||(tracks=[tracks]),"function"!=typeof window.WebVTT||tracks.every((track=>!track.activeCues)))return;const cues=[];for(let i=0;i<tracks.length;++i){const track=tracks[i];for(let j=0;j<track.activeCues.length;++j)cues.push(track.activeCues[j])}window.WebVTT.processCues(window,cues,this.el_);for(let i=0;i<tracks.length;++i){const track=tracks[i];for(let j=0;j<track.activeCues.length;++j){const cueEl=track.activeCues[j].displayState;addClass(cueEl,"vjs-text-track-cue","vjs-text-track-cue-"+(track.language?track.language:i)),track.language&&setAttribute(cueEl,"lang",track.language)}this.player_.textTrackSettings&&this.updateDisplayState(track)}}});Component$1.registerComponent("LoadingSpinner",class extends Component$1{createEl(){const isAudio=this.player_.isAudio(),playerType=this.localize(isAudio?"Audio Player":"Video Player"),controlText=createEl("span",{className:"vjs-control-text",textContent:this.localize("{1} is loading.",[playerType])}),el=super.createEl("div",{className:"vjs-loading-spinner",dir:"ltr"});return el.appendChild(controlText),el}handleLanguagechange(){this.$(".vjs-control-text").textContent=this.localize("{1} is loading.",[this.player_.isAudio()?"Audio Player":"Video Player"])}});class Button extends ClickableComponent{createEl(tag){let props=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{},attributes=arguments.length>2&&void 0!==arguments[2]?arguments[2]:{};tag="button",props=Object.assign({className:this.buildCSSClass()},props),attributes=Object.assign({type:"button"},attributes);const el=createEl("button",props,attributes);return el.appendChild(createEl("span",{className:"vjs-icon-placeholder"},{"aria-hidden":!0})),this.createControlTextEl(el),el}addChild(child){let options=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};const className=this.constructor.name;return log$1.warn("Adding an actionable (user controllable) child to a Button (".concat(className,") is not supported; use a ClickableComponent instead.")),Component$1.prototype.addChild.call(this,child,options)}enable(){super.enable(),this.el_.removeAttribute("disabled")}disable(){super.disable(),this.el_.setAttribute("disabled","disabled")}handleKeyDown(event){keycode.isEventKey(event,"Space")||keycode.isEventKey(event,"Enter")?event.stopPropagation():super.handleKeyDown(event)}}Component$1.registerComponent("Button",Button);class BigPlayButton extends Button{constructor(player,options){super(player,options),this.mouseused_=!1,this.on("mousedown",(e=>this.handleMouseDown(e)))}buildCSSClass(){return"vjs-big-play-button"}handleClick(event){const playPromise=this.player_.play();if(this.mouseused_&&event.clientX&&event.clientY)return silencePromise(playPromise),void(this.player_.tech(!0)&&this.player_.tech(!0).focus());const cb=this.player_.getChild("controlBar"),playToggle=cb&&cb.getChild("playToggle");if(!playToggle)return void this.player_.tech(!0).focus();const playFocus=()=>playToggle.focus();isPromise(playPromise)?playPromise.then(playFocus,(()=>{})):this.setTimeout(playFocus,1)}handleKeyDown(event){this.mouseused_=!1,super.handleKeyDown(event)}handleMouseDown(event){this.mouseused_=!0}}BigPlayButton.prototype.controlText_="Play Video",Component$1.registerComponent("BigPlayButton",BigPlayButton);Component$1.registerComponent("CloseButton",class extends Button{constructor(player,options){super(player,options),this.controlText(options&&options.controlText||this.localize("Close"))}buildCSSClass(){return"vjs-close-button ".concat(super.buildCSSClass())}handleClick(event){this.trigger({type:"close",bubbles:!1})}handleKeyDown(event){keycode.isEventKey(event,"Esc")?(event.preventDefault(),event.stopPropagation(),this.trigger("click")):super.handleKeyDown(event)}});class PlayToggle extends Button{constructor(player){let options=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};super(player,options),options.replay=void 0===options.replay||options.replay,this.on(player,"play",(e=>this.handlePlay(e))),this.on(player,"pause",(e=>this.handlePause(e))),options.replay&&this.on(player,"ended",(e=>this.handleEnded(e)))}buildCSSClass(){return"vjs-play-control ".concat(super.buildCSSClass())}handleClick(event){this.player_.paused()?silencePromise(this.player_.play()):this.player_.pause()}handleSeeked(event){this.removeClass("vjs-ended"),this.player_.paused()?this.handlePause(event):this.handlePlay(event)}handlePlay(event){this.removeClass("vjs-ended","vjs-paused"),this.addClass("vjs-playing"),this.controlText("Pause")}handlePause(event){this.removeClass("vjs-playing"),this.addClass("vjs-paused"),this.controlText("Play")}handleEnded(event){this.removeClass("vjs-playing"),this.addClass("vjs-ended"),this.controlText("Replay"),this.one(this.player_,"seeked",(e=>this.handleSeeked(e)))}}PlayToggle.prototype.controlText_="Play",Component$1.registerComponent("PlayToggle",PlayToggle);class TimeDisplay extends Component$1{constructor(player,options){super(player,options),this.on(player,["timeupdate","ended"],(e=>this.updateContent(e))),this.updateTextNode_()}createEl(){const className=this.buildCSSClass(),el=super.createEl("div",{className:"".concat(className," vjs-time-control vjs-control")}),span=createEl("span",{className:"vjs-control-text",textContent:"".concat(this.localize(this.labelText_)," ")},{role:"presentation"});return el.appendChild(span),this.contentEl_=createEl("span",{className:"".concat(className,"-display")},{role:"presentation"}),el.appendChild(this.contentEl_),el}dispose(){this.contentEl_=null,this.textNode_=null,super.dispose()}updateTextNode_(){let time=arguments.length>0&&void 0!==arguments[0]?arguments[0]:0;time=formatTime(time),this.formattedTime_!==time&&(this.formattedTime_=time,this.requestNamedAnimationFrame("TimeDisplay#updateTextNode_",(()=>{if(!this.contentEl_)return;let oldNode=this.textNode_;oldNode&&this.contentEl_.firstChild!==oldNode&&(oldNode=null,log$1.warn("TimeDisplay#updateTextnode_: Prevented replacement of text node element since it was no longer a child of this node. Appending a new node instead.")),this.textNode_=document.createTextNode(this.formattedTime_),this.textNode_&&(oldNode?this.contentEl_.replaceChild(this.textNode_,oldNode):this.contentEl_.appendChild(this.textNode_))})))}updateContent(event){}}TimeDisplay.prototype.labelText_="Time",TimeDisplay.prototype.controlText_="Time",Component$1.registerComponent("TimeDisplay",TimeDisplay);class CurrentTimeDisplay extends TimeDisplay{buildCSSClass(){return"vjs-current-time"}updateContent(event){let time;time=this.player_.ended()?this.player_.duration():this.player_.scrubbing()?this.player_.getCache().currentTime:this.player_.currentTime(),this.updateTextNode_(time)}}CurrentTimeDisplay.prototype.labelText_="Current Time",CurrentTimeDisplay.prototype.controlText_="Current Time",Component$1.registerComponent("CurrentTimeDisplay",CurrentTimeDisplay);class DurationDisplay extends TimeDisplay{constructor(player,options){super(player,options);const updateContent=e=>this.updateContent(e);this.on(player,"durationchange",updateContent),this.on(player,"loadstart",updateContent),this.on(player,"loadedmetadata",updateContent)}buildCSSClass(){return"vjs-duration"}updateContent(event){const duration=this.player_.duration();this.updateTextNode_(duration)}}DurationDisplay.prototype.labelText_="Duration",DurationDisplay.prototype.controlText_="Duration",Component$1.registerComponent("DurationDisplay",DurationDisplay);Component$1.registerComponent("TimeDivider",class extends Component$1{createEl(){const el=super.createEl("div",{className:"vjs-time-control vjs-time-divider"},{"aria-hidden":!0}),div=super.createEl("div"),span=super.createEl("span",{textContent:"/"});return div.appendChild(span),el.appendChild(div),el}});class RemainingTimeDisplay extends TimeDisplay{constructor(player,options){super(player,options),this.on(player,"durationchange",(e=>this.updateContent(e)))}buildCSSClass(){return"vjs-remaining-time"}createEl(){const el=super.createEl();return!1!==this.options_.displayNegative&&el.insertBefore(createEl("span",{},{"aria-hidden":!0},"-"),this.contentEl_),el}updateContent(event){if("number"!=typeof this.player_.duration())return;let time;time=this.player_.ended()?0:this.player_.remainingTimeDisplay?this.player_.remainingTimeDisplay():this.player_.remainingTime(),this.updateTextNode_(time)}}RemainingTimeDisplay.prototype.labelText_="Remaining Time",RemainingTimeDisplay.prototype.controlText_="Remaining Time",Component$1.registerComponent("RemainingTimeDisplay",RemainingTimeDisplay);Component$1.registerComponent("LiveDisplay",class extends Component$1{constructor(player,options){super(player,options),this.updateShowing(),this.on(this.player(),"durationchange",(e=>this.updateShowing(e)))}createEl(){const el=super.createEl("div",{className:"vjs-live-control vjs-control"});return this.contentEl_=createEl("div",{className:"vjs-live-display"},{"aria-live":"off"}),this.contentEl_.appendChild(createEl("span",{className:"vjs-control-text",textContent:"".concat(this.localize("Stream Type")," ")})),this.contentEl_.appendChild(document.createTextNode(this.localize("LIVE"))),el.appendChild(this.contentEl_),el}dispose(){this.contentEl_=null,super.dispose()}updateShowing(event){this.player().duration()===1/0?this.show():this.hide()}});class SeekToLive extends Button{constructor(player,options){super(player,options),this.updateLiveEdgeStatus(),this.player_.liveTracker&&(this.updateLiveEdgeStatusHandler_=e=>this.updateLiveEdgeStatus(e),this.on(this.player_.liveTracker,"liveedgechange",this.updateLiveEdgeStatusHandler_))}createEl(){const el=super.createEl("button",{className:"vjs-seek-to-live-control vjs-control"});return this.textEl_=createEl("span",{className:"vjs-seek-to-live-text",textContent:this.localize("LIVE")},{"aria-hidden":"true"}),el.appendChild(this.textEl_),el}updateLiveEdgeStatus(){!this.player_.liveTracker||this.player_.liveTracker.atLiveEdge()?(this.setAttribute("aria-disabled",!0),this.addClass("vjs-at-live-edge"),this.controlText("Seek to live, currently playing live")):(this.setAttribute("aria-disabled",!1),this.removeClass("vjs-at-live-edge"),this.controlText("Seek to live, currently behind live"))}handleClick(){this.player_.liveTracker.seekToLiveEdge()}dispose(){this.player_.liveTracker&&this.off(this.player_.liveTracker,"liveedgechange",this.updateLiveEdgeStatusHandler_),this.textEl_=null,super.dispose()}}function clamp(number,min,max){return number=Number(number),Math.min(max,Math.max(min,isNaN(number)?min:number))}SeekToLive.prototype.controlText_="Seek to live, currently playing live",Component$1.registerComponent("SeekToLive",SeekToLive);var Num=Object.freeze({__proto__:null,clamp:clamp});class Slider extends Component$1{constructor(player,options){super(player,options),this.handleMouseDown_=e=>this.handleMouseDown(e),this.handleMouseUp_=e=>this.handleMouseUp(e),this.handleKeyDown_=e=>this.handleKeyDown(e),this.handleClick_=e=>this.handleClick(e),this.handleMouseMove_=e=>this.handleMouseMove(e),this.update_=e=>this.update(e),this.bar=this.getChild(this.options_.barName),this.vertical(!!this.options_.vertical),this.enable()}enabled(){return this.enabled_}enable(){this.enabled()||(this.on("mousedown",this.handleMouseDown_),this.on("touchstart",this.handleMouseDown_),this.on("keydown",this.handleKeyDown_),this.on("click",this.handleClick_),this.on(this.player_,"controlsvisible",this.update),this.playerEvent&&this.on(this.player_,this.playerEvent,this.update),this.removeClass("disabled"),this.setAttribute("tabindex",0),this.enabled_=!0)}disable(){if(!this.enabled())return;const doc=this.bar.el_.ownerDocument;this.off("mousedown",this.handleMouseDown_),this.off("touchstart",this.handleMouseDown_),this.off("keydown",this.handleKeyDown_),this.off("click",this.handleClick_),this.off(this.player_,"controlsvisible",this.update_),this.off(doc,"mousemove",this.handleMouseMove_),this.off(doc,"mouseup",this.handleMouseUp_),this.off(doc,"touchmove",this.handleMouseMove_),this.off(doc,"touchend",this.handleMouseUp_),this.removeAttribute("tabindex"),this.addClass("disabled"),this.playerEvent&&this.off(this.player_,this.playerEvent,this.update),this.enabled_=!1}createEl(type){let props=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{},attributes=arguments.length>2&&void 0!==arguments[2]?arguments[2]:{};return props.className=props.className+" vjs-slider",props=Object.assign({tabIndex:0},props),attributes=Object.assign({role:"slider","aria-valuenow":0,"aria-valuemin":0,"aria-valuemax":100},attributes),super.createEl(type,props,attributes)}handleMouseDown(event){const doc=this.bar.el_.ownerDocument;"mousedown"===event.type&&event.preventDefault(),"touchstart"!==event.type||IS_CHROME||event.preventDefault(),blockTextSelection(),this.addClass("vjs-sliding"),this.trigger("slideractive"),this.on(doc,"mousemove",this.handleMouseMove_),this.on(doc,"mouseup",this.handleMouseUp_),this.on(doc,"touchmove",this.handleMouseMove_),this.on(doc,"touchend",this.handleMouseUp_),this.handleMouseMove(event,!0)}handleMouseMove(event){}handleMouseUp(event){const doc=this.bar.el_.ownerDocument;unblockTextSelection(),this.removeClass("vjs-sliding"),this.trigger("sliderinactive"),this.off(doc,"mousemove",this.handleMouseMove_),this.off(doc,"mouseup",this.handleMouseUp_),this.off(doc,"touchmove",this.handleMouseMove_),this.off(doc,"touchend",this.handleMouseUp_),this.update()}update(){if(!this.el_||!this.bar)return;const progress=this.getProgress();return progress===this.progress_||(this.progress_=progress,this.requestNamedAnimationFrame("Slider#update",(()=>{const sizeKey=this.vertical()?"height":"width";this.bar.el().style[sizeKey]=(100*progress).toFixed(2)+"%"}))),progress}getProgress(){return Number(clamp(this.getPercent(),0,1).toFixed(4))}calculateDistance(event){const position=getPointerPosition(this.el_,event);return this.vertical()?position.y:position.x}handleKeyDown(event){keycode.isEventKey(event,"Left")||keycode.isEventKey(event,"Down")?(event.preventDefault(),event.stopPropagation(),this.stepBack()):keycode.isEventKey(event,"Right")||keycode.isEventKey(event,"Up")?(event.preventDefault(),event.stopPropagation(),this.stepForward()):super.handleKeyDown(event)}handleClick(event){event.stopPropagation(),event.preventDefault()}vertical(bool){if(void 0===bool)return this.vertical_||!1;this.vertical_=!!bool,this.vertical_?this.addClass("vjs-slider-vertical"):this.addClass("vjs-slider-horizontal")}}Component$1.registerComponent("Slider",Slider);const percentify=(time,end)=>clamp(time/end*100,0,100).toFixed(2)+"%";Component$1.registerComponent("LoadProgressBar",class extends Component$1{constructor(player,options){super(player,options),this.partEls_=[],this.on(player,"progress",(e=>this.update(e)))}createEl(){const el=super.createEl("div",{className:"vjs-load-progress"}),wrapper=createEl("span",{className:"vjs-control-text"}),loadedText=createEl("span",{textContent:this.localize("Loaded")}),separator=document.createTextNode(": ");return this.percentageEl_=createEl("span",{className:"vjs-control-text-loaded-percentage",textContent:"0%"}),el.appendChild(wrapper),wrapper.appendChild(loadedText),wrapper.appendChild(separator),wrapper.appendChild(this.percentageEl_),el}dispose(){this.partEls_=null,this.percentageEl_=null,super.dispose()}update(event){this.requestNamedAnimationFrame("LoadProgressBar#update",(()=>{const liveTracker=this.player_.liveTracker,buffered=this.player_.buffered(),duration=liveTracker&&liveTracker.isLive()?liveTracker.seekableEnd():this.player_.duration(),bufferedEnd=this.player_.bufferedEnd(),children=this.partEls_,percent=percentify(bufferedEnd,duration);this.percent_!==percent&&(this.el_.style.width=percent,textContent(this.percentageEl_,percent),this.percent_=percent);for(let i=0;i<buffered.length;i++){const start=buffered.start(i),end=buffered.end(i);let part=children[i];part||(part=this.el_.appendChild(createEl()),children[i]=part),part.dataset.start===start&&part.dataset.end===end||(part.dataset.start=start,part.dataset.end=end,part.style.left=percentify(start,bufferedEnd),part.style.width=percentify(end-start,bufferedEnd))}for(let i=children.length;i>buffered.length;i--)this.el_.removeChild(children[i-1]);children.length=buffered.length}))}});Component$1.registerComponent("TimeTooltip",class extends Component$1{constructor(player,options){super(player,options),this.update=throttle(bind_(this,this.update),30)}createEl(){return super.createEl("div",{className:"vjs-time-tooltip"},{"aria-hidden":"true"})}update(seekBarRect,seekBarPoint,content){const tooltipRect=findPosition(this.el_),playerRect=getBoundingClientRect(this.player_.el()),seekBarPointPx=seekBarRect.width*seekBarPoint;if(!playerRect||!tooltipRect)return;const spaceLeftOfPoint=seekBarRect.left-playerRect.left+seekBarPointPx,spaceRightOfPoint=seekBarRect.width-seekBarPointPx+(playerRect.right-seekBarRect.right);let pullTooltipBy=tooltipRect.width/2;spaceLeftOfPoint<pullTooltipBy?pullTooltipBy+=pullTooltipBy-spaceLeftOfPoint:spaceRightOfPoint<pullTooltipBy&&(pullTooltipBy=spaceRightOfPoint),pullTooltipBy<0?pullTooltipBy=0:pullTooltipBy>tooltipRect.width&&(pullTooltipBy=tooltipRect.width),pullTooltipBy=Math.round(pullTooltipBy),this.el_.style.right="-".concat(pullTooltipBy,"px"),this.write(content)}write(content){textContent(this.el_,content)}updateTime(seekBarRect,seekBarPoint,time,cb){this.requestNamedAnimationFrame("TimeTooltip#updateTime",(()=>{let content;const duration=this.player_.duration();if(this.player_.liveTracker&&this.player_.liveTracker.isLive()){const liveWindow=this.player_.liveTracker.liveWindow(),secondsBehind=liveWindow-seekBarPoint*liveWindow;content=(secondsBehind<1?"":"-")+formatTime(secondsBehind,liveWindow)}else content=formatTime(time,duration);this.update(seekBarRect,seekBarPoint,content),cb&&cb()}))}});class PlayProgressBar extends Component$1{constructor(player,options){super(player,options),this.update=throttle(bind_(this,this.update),30)}createEl(){return super.createEl("div",{className:"vjs-play-progress vjs-slider-bar"},{"aria-hidden":"true"})}update(seekBarRect,seekBarPoint){const timeTooltip=this.getChild("timeTooltip");if(!timeTooltip)return;const time=this.player_.scrubbing()?this.player_.getCache().currentTime:this.player_.currentTime();timeTooltip.updateTime(seekBarRect,seekBarPoint,time)}}PlayProgressBar.prototype.options_={children:[]},IS_IOS||IS_ANDROID||PlayProgressBar.prototype.options_.children.push("timeTooltip"),Component$1.registerComponent("PlayProgressBar",PlayProgressBar);class MouseTimeDisplay extends Component$1{constructor(player,options){super(player,options),this.update=throttle(bind_(this,this.update),30)}createEl(){return super.createEl("div",{className:"vjs-mouse-display"})}update(seekBarRect,seekBarPoint){const time=seekBarPoint*this.player_.duration();this.getChild("timeTooltip").updateTime(seekBarRect,seekBarPoint,time,(()=>{this.el_.style.left="".concat(seekBarRect.width*seekBarPoint,"px")}))}}MouseTimeDisplay.prototype.options_={children:["timeTooltip"]},Component$1.registerComponent("MouseTimeDisplay",MouseTimeDisplay);class SeekBar extends Slider{constructor(player,options){super(player,options),this.setEventHandlers_()}setEventHandlers_(){this.update_=bind_(this,this.update),this.update=throttle(this.update_,30),this.on(this.player_,["ended","durationchange","timeupdate"],this.update),this.player_.liveTracker&&this.on(this.player_.liveTracker,"liveedgechange",this.update),this.updateInterval=null,this.enableIntervalHandler_=e=>this.enableInterval_(e),this.disableIntervalHandler_=e=>this.disableInterval_(e),this.on(this.player_,["playing"],this.enableIntervalHandler_),this.on(this.player_,["ended","pause","waiting"],this.disableIntervalHandler_),"hidden"in document&&"visibilityState"in document&&this.on(document,"visibilitychange",this.toggleVisibility_)}toggleVisibility_(e){"hidden"===document.visibilityState?(this.cancelNamedAnimationFrame("SeekBar#update"),this.cancelNamedAnimationFrame("Slider#update"),this.disableInterval_(e)):(this.player_.ended()||this.player_.paused()||this.enableInterval_(),this.update())}enableInterval_(){this.updateInterval||(this.updateInterval=this.setInterval(this.update,30))}disableInterval_(e){this.player_.liveTracker&&this.player_.liveTracker.isLive()&&e&&"ended"!==e.type||this.updateInterval&&(this.clearInterval(this.updateInterval),this.updateInterval=null)}createEl(){return super.createEl("div",{className:"vjs-progress-holder"},{"aria-label":this.localize("Progress Bar")})}update(event){if("hidden"===document.visibilityState)return;const percent=super.update();return this.requestNamedAnimationFrame("SeekBar#update",(()=>{const currentTime=this.player_.ended()?this.player_.duration():this.getCurrentTime_(),liveTracker=this.player_.liveTracker;let duration=this.player_.duration();liveTracker&&liveTracker.isLive()&&(duration=this.player_.liveTracker.liveCurrentTime()),this.percent_!==percent&&(this.el_.setAttribute("aria-valuenow",(100*percent).toFixed(2)),this.percent_=percent),this.currentTime_===currentTime&&this.duration_===duration||(this.el_.setAttribute("aria-valuetext",this.localize("progress bar timing: currentTime={1} duration={2}",[formatTime(currentTime,duration),formatTime(duration,duration)],"{1} of {2}")),this.currentTime_=currentTime,this.duration_=duration),this.bar&&this.bar.update(getBoundingClientRect(this.el()),this.getProgress())})),percent}userSeek_(ct){this.player_.liveTracker&&this.player_.liveTracker.isLive()&&this.player_.liveTracker.nextSeekedFromUser(),this.player_.currentTime(ct)}getCurrentTime_(){return this.player_.scrubbing()?this.player_.getCache().currentTime:this.player_.currentTime()}getPercent(){const currentTime=this.getCurrentTime_();let percent;const liveTracker=this.player_.liveTracker;return liveTracker&&liveTracker.isLive()?(percent=(currentTime-liveTracker.seekableStart())/liveTracker.liveWindow(),liveTracker.atLiveEdge()&&(percent=1)):percent=currentTime/this.player_.duration(),percent}handleMouseDown(event){isSingleLeftClick(event)&&(event.stopPropagation(),this.videoWasPlaying=!this.player_.paused(),this.player_.pause(),super.handleMouseDown(event))}handleMouseMove(event){let newTime,mouseDown=arguments.length>1&&void 0!==arguments[1]&&arguments[1];if(!isSingleLeftClick(event))return;mouseDown||this.player_.scrubbing()||this.player_.scrubbing(!0);const distance=this.calculateDistance(event),liveTracker=this.player_.liveTracker;if(liveTracker&&liveTracker.isLive()){if(distance>=.99)return void liveTracker.seekToLiveEdge();const seekableStart=liveTracker.seekableStart(),seekableEnd=liveTracker.liveCurrentTime();if(newTime=seekableStart+distance*liveTracker.liveWindow(),newTime>=seekableEnd&&(newTime=seekableEnd),newTime<=seekableStart&&(newTime=seekableStart+.1),newTime===1/0)return}else newTime=distance*this.player_.duration(),newTime===this.player_.duration()&&(newTime-=.1);this.userSeek_(newTime)}enable(){super.enable();const mouseTimeDisplay=this.getChild("mouseTimeDisplay");mouseTimeDisplay&&mouseTimeDisplay.show()}disable(){super.disable();const mouseTimeDisplay=this.getChild("mouseTimeDisplay");mouseTimeDisplay&&mouseTimeDisplay.hide()}handleMouseUp(event){super.handleMouseUp(event),event&&event.stopPropagation(),this.player_.scrubbing(!1),this.player_.trigger({type:"timeupdate",target:this,manuallyTriggered:!0}),this.videoWasPlaying?silencePromise(this.player_.play()):this.update_()}stepForward(){this.userSeek_(this.player_.currentTime()+5)}stepBack(){this.userSeek_(this.player_.currentTime()-5)}handleAction(event){this.player_.paused()?this.player_.play():this.player_.pause()}handleKeyDown(event){const liveTracker=this.player_.liveTracker;if(keycode.isEventKey(event,"Space")||keycode.isEventKey(event,"Enter"))event.preventDefault(),event.stopPropagation(),this.handleAction(event);else if(keycode.isEventKey(event,"Home"))event.preventDefault(),event.stopPropagation(),this.userSeek_(0);else if(keycode.isEventKey(event,"End"))event.preventDefault(),event.stopPropagation(),liveTracker&&liveTracker.isLive()?this.userSeek_(liveTracker.liveCurrentTime()):this.userSeek_(this.player_.duration());else if(/^[0-9]$/.test(keycode(event))){event.preventDefault(),event.stopPropagation();const gotoFraction=10*(keycode.codes[keycode(event)]-keycode.codes[0])/100;liveTracker&&liveTracker.isLive()?this.userSeek_(liveTracker.seekableStart()+liveTracker.liveWindow()*gotoFraction):this.userSeek_(this.player_.duration()*gotoFraction)}else keycode.isEventKey(event,"PgDn")?(event.preventDefault(),event.stopPropagation(),this.userSeek_(this.player_.currentTime()-60)):keycode.isEventKey(event,"PgUp")?(event.preventDefault(),event.stopPropagation(),this.userSeek_(this.player_.currentTime()+60)):super.handleKeyDown(event)}dispose(){this.disableInterval_(),this.off(this.player_,["ended","durationchange","timeupdate"],this.update),this.player_.liveTracker&&this.off(this.player_.liveTracker,"liveedgechange",this.update),this.off(this.player_,["playing"],this.enableIntervalHandler_),this.off(this.player_,["ended","pause","waiting"],this.disableIntervalHandler_),"hidden"in document&&"visibilityState"in document&&this.off(document,"visibilitychange",this.toggleVisibility_),super.dispose()}}SeekBar.prototype.options_={children:["loadProgressBar","playProgressBar"],barName:"playProgressBar"},IS_IOS||IS_ANDROID||SeekBar.prototype.options_.children.splice(1,0,"mouseTimeDisplay"),Component$1.registerComponent("SeekBar",SeekBar);class ProgressControl extends Component$1{constructor(player,options){super(player,options),this.handleMouseMove=throttle(bind_(this,this.handleMouseMove),30),this.throttledHandleMouseSeek=throttle(bind_(this,this.handleMouseSeek),30),this.handleMouseUpHandler_=e=>this.handleMouseUp(e),this.handleMouseDownHandler_=e=>this.handleMouseDown(e),this.enable()}createEl(){return super.createEl("div",{className:"vjs-progress-control vjs-control"})}handleMouseMove(event){const seekBar=this.getChild("seekBar");if(!seekBar)return;const playProgressBar=seekBar.getChild("playProgressBar"),mouseTimeDisplay=seekBar.getChild("mouseTimeDisplay");if(!playProgressBar&&!mouseTimeDisplay)return;const seekBarEl=seekBar.el(),seekBarRect=findPosition(seekBarEl);let seekBarPoint=getPointerPosition(seekBarEl,event).x;seekBarPoint=clamp(seekBarPoint,0,1),mouseTimeDisplay&&mouseTimeDisplay.update(seekBarRect,seekBarPoint),playProgressBar&&playProgressBar.update(seekBarRect,seekBar.getProgress())}handleMouseSeek(event){const seekBar=this.getChild("seekBar");seekBar&&seekBar.handleMouseMove(event)}enabled(){return this.enabled_}disable(){if(this.children().forEach((child=>child.disable&&child.disable())),this.enabled()&&(this.off(["mousedown","touchstart"],this.handleMouseDownHandler_),this.off(this.el_,"mousemove",this.handleMouseMove),this.removeListenersAddedOnMousedownAndTouchstart(),this.addClass("disabled"),this.enabled_=!1,this.player_.scrubbing())){const seekBar=this.getChild("seekBar");this.player_.scrubbing(!1),seekBar.videoWasPlaying&&silencePromise(this.player_.play())}}enable(){this.children().forEach((child=>child.enable&&child.enable())),this.enabled()||(this.on(["mousedown","touchstart"],this.handleMouseDownHandler_),this.on(this.el_,"mousemove",this.handleMouseMove),this.removeClass("disabled"),this.enabled_=!0)}removeListenersAddedOnMousedownAndTouchstart(){const doc=this.el_.ownerDocument;this.off(doc,"mousemove",this.throttledHandleMouseSeek),this.off(doc,"touchmove",this.throttledHandleMouseSeek),this.off(doc,"mouseup",this.handleMouseUpHandler_),this.off(doc,"touchend",this.handleMouseUpHandler_)}handleMouseDown(event){const doc=this.el_.ownerDocument,seekBar=this.getChild("seekBar");seekBar&&seekBar.handleMouseDown(event),this.on(doc,"mousemove",this.throttledHandleMouseSeek),this.on(doc,"touchmove",this.throttledHandleMouseSeek),this.on(doc,"mouseup",this.handleMouseUpHandler_),this.on(doc,"touchend",this.handleMouseUpHandler_)}handleMouseUp(event){const seekBar=this.getChild("seekBar");seekBar&&seekBar.handleMouseUp(event),this.removeListenersAddedOnMousedownAndTouchstart()}}ProgressControl.prototype.options_={children:["seekBar"]},Component$1.registerComponent("ProgressControl",ProgressControl);class PictureInPictureToggle extends Button{constructor(player,options){super(player,options),this.on(player,["enterpictureinpicture","leavepictureinpicture"],(e=>this.handlePictureInPictureChange(e))),this.on(player,["disablepictureinpicturechanged","loadedmetadata"],(e=>this.handlePictureInPictureEnabledChange(e))),this.on(player,["loadedmetadata","audioonlymodechange","audiopostermodechange"],(()=>{"audio"===player.currentType().substring(0,5)||player.audioPosterMode()||player.audioOnlyMode()?(player.isInPictureInPicture()&&player.exitPictureInPicture(),this.hide()):this.show()})),this.disable()}buildCSSClass(){return"vjs-picture-in-picture-control ".concat(super.buildCSSClass())}handlePictureInPictureEnabledChange(){document.pictureInPictureEnabled&&!1===this.player_.disablePictureInPicture()||this.player_.options_.enableDocumentPictureInPicture&&"documentPictureInPicture"in window?this.enable():this.disable()}handlePictureInPictureChange(event){this.player_.isInPictureInPicture()?this.controlText("Exit Picture-in-Picture"):this.controlText("Picture-in-Picture"),this.handlePictureInPictureEnabledChange()}handleClick(event){this.player_.isInPictureInPicture()?this.player_.exitPictureInPicture():this.player_.requestPictureInPicture()}}PictureInPictureToggle.prototype.controlText_="Picture-in-Picture",Component$1.registerComponent("PictureInPictureToggle",PictureInPictureToggle);class FullscreenToggle extends Button{constructor(player,options){super(player,options),this.on(player,"fullscreenchange",(e=>this.handleFullscreenChange(e))),!1===document[player.fsApi_.fullscreenEnabled]&&this.disable()}buildCSSClass(){return"vjs-fullscreen-control ".concat(super.buildCSSClass())}handleFullscreenChange(event){this.player_.isFullscreen()?this.controlText("Exit Fullscreen"):this.controlText("Fullscreen")}handleClick(event){this.player_.isFullscreen()?this.player_.exitFullscreen():this.player_.requestFullscreen()}}FullscreenToggle.prototype.controlText_="Fullscreen",Component$1.registerComponent("FullscreenToggle",FullscreenToggle);Component$1.registerComponent("VolumeLevel",class extends Component$1{createEl(){const el=super.createEl("div",{className:"vjs-volume-level"});return el.appendChild(super.createEl("span",{className:"vjs-control-text"})),el}});Component$1.registerComponent("VolumeLevelTooltip",class extends Component$1{constructor(player,options){super(player,options),this.update=throttle(bind_(this,this.update),30)}createEl(){return super.createEl("div",{className:"vjs-volume-tooltip"},{"aria-hidden":"true"})}update(rangeBarRect,rangeBarPoint,vertical,content){if(!vertical){const tooltipRect=getBoundingClientRect(this.el_),playerRect=getBoundingClientRect(this.player_.el()),volumeBarPointPx=rangeBarRect.width*rangeBarPoint;if(!playerRect||!tooltipRect)return;const spaceLeftOfPoint=rangeBarRect.left-playerRect.left+volumeBarPointPx,spaceRightOfPoint=rangeBarRect.width-volumeBarPointPx+(playerRect.right-rangeBarRect.right);let pullTooltipBy=tooltipRect.width/2;spaceLeftOfPoint<pullTooltipBy?pullTooltipBy+=pullTooltipBy-spaceLeftOfPoint:spaceRightOfPoint<pullTooltipBy&&(pullTooltipBy=spaceRightOfPoint),pullTooltipBy<0?pullTooltipBy=0:pullTooltipBy>tooltipRect.width&&(pullTooltipBy=tooltipRect.width),this.el_.style.right="-".concat(pullTooltipBy,"px")}this.write("".concat(content,"%"))}write(content){textContent(this.el_,content)}updateVolume(rangeBarRect,rangeBarPoint,vertical,volume,cb){this.requestNamedAnimationFrame("VolumeLevelTooltip#updateVolume",(()=>{this.update(rangeBarRect,rangeBarPoint,vertical,volume.toFixed(0)),cb&&cb()}))}});class MouseVolumeLevelDisplay extends Component$1{constructor(player,options){super(player,options),this.update=throttle(bind_(this,this.update),30)}createEl(){return super.createEl("div",{className:"vjs-mouse-display"})}update(rangeBarRect,rangeBarPoint,vertical){const volume=100*rangeBarPoint;this.getChild("volumeLevelTooltip").updateVolume(rangeBarRect,rangeBarPoint,vertical,volume,(()=>{vertical?this.el_.style.bottom="".concat(rangeBarRect.height*rangeBarPoint,"px"):this.el_.style.left="".concat(rangeBarRect.width*rangeBarPoint,"px")}))}}MouseVolumeLevelDisplay.prototype.options_={children:["volumeLevelTooltip"]},Component$1.registerComponent("MouseVolumeLevelDisplay",MouseVolumeLevelDisplay);class VolumeBar extends Slider{constructor(player,options){super(player,options),this.on("slideractive",(e=>this.updateLastVolume_(e))),this.on(player,"volumechange",(e=>this.updateARIAAttributes(e))),player.ready((()=>this.updateARIAAttributes()))}createEl(){return super.createEl("div",{className:"vjs-volume-bar vjs-slider-bar"},{"aria-label":this.localize("Volume Level"),"aria-live":"polite"})}handleMouseDown(event){isSingleLeftClick(event)&&super.handleMouseDown(event)}handleMouseMove(event){const mouseVolumeLevelDisplay=this.getChild("mouseVolumeLevelDisplay");if(mouseVolumeLevelDisplay){const volumeBarEl=this.el(),volumeBarRect=getBoundingClientRect(volumeBarEl),vertical=this.vertical();let volumeBarPoint=getPointerPosition(volumeBarEl,event);volumeBarPoint=vertical?volumeBarPoint.y:volumeBarPoint.x,volumeBarPoint=clamp(volumeBarPoint,0,1),mouseVolumeLevelDisplay.update(volumeBarRect,volumeBarPoint,vertical)}isSingleLeftClick(event)&&(this.checkMuted(),this.player_.volume(this.calculateDistance(event)))}checkMuted(){this.player_.muted()&&this.player_.muted(!1)}getPercent(){return this.player_.muted()?0:this.player_.volume()}stepForward(){this.checkMuted(),this.player_.volume(this.player_.volume()+.1)}stepBack(){this.checkMuted(),this.player_.volume(this.player_.volume()-.1)}updateARIAAttributes(event){const ariaValue=this.player_.muted()?0:this.volumeAsPercentage_();this.el_.setAttribute("aria-valuenow",ariaValue),this.el_.setAttribute("aria-valuetext",ariaValue+"%")}volumeAsPercentage_(){return Math.round(100*this.player_.volume())}updateLastVolume_(){const volumeBeforeDrag=this.player_.volume();this.one("sliderinactive",(()=>{0===this.player_.volume()&&this.player_.lastVolume_(volumeBeforeDrag)}))}}VolumeBar.prototype.options_={children:["volumeLevel"],barName:"volumeLevel"},IS_IOS||IS_ANDROID||VolumeBar.prototype.options_.children.splice(0,0,"mouseVolumeLevelDisplay"),VolumeBar.prototype.playerEvent="volumechange",Component$1.registerComponent("VolumeBar",VolumeBar);class VolumeControl extends Component$1{constructor(player){let options=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};options.vertical=options.vertical||!1,(void 0===options.volumeBar||isPlain(options.volumeBar))&&(options.volumeBar=options.volumeBar||{},options.volumeBar.vertical=options.vertical),super(player,options),function(self,player){player.tech_&&!player.tech_.featuresVolumeControl&&self.addClass("vjs-hidden"),self.on(player,"loadstart",(function(){player.tech_.featuresVolumeControl?self.removeClass("vjs-hidden"):self.addClass("vjs-hidden")}))}(this,player),this.throttledHandleMouseMove=throttle(bind_(this,this.handleMouseMove),30),this.handleMouseUpHandler_=e=>this.handleMouseUp(e),this.on("mousedown",(e=>this.handleMouseDown(e))),this.on("touchstart",(e=>this.handleMouseDown(e))),this.on("mousemove",(e=>this.handleMouseMove(e))),this.on(this.volumeBar,["focus","slideractive"],(()=>{this.volumeBar.addClass("vjs-slider-active"),this.addClass("vjs-slider-active"),this.trigger("slideractive")})),this.on(this.volumeBar,["blur","sliderinactive"],(()=>{this.volumeBar.removeClass("vjs-slider-active"),this.removeClass("vjs-slider-active"),this.trigger("sliderinactive")}))}createEl(){let orientationClass="vjs-volume-horizontal";return this.options_.vertical&&(orientationClass="vjs-volume-vertical"),super.createEl("div",{className:"vjs-volume-control vjs-control ".concat(orientationClass)})}handleMouseDown(event){const doc=this.el_.ownerDocument;this.on(doc,"mousemove",this.throttledHandleMouseMove),this.on(doc,"touchmove",this.throttledHandleMouseMove),this.on(doc,"mouseup",this.handleMouseUpHandler_),this.on(doc,"touchend",this.handleMouseUpHandler_)}handleMouseUp(event){const doc=this.el_.ownerDocument;this.off(doc,"mousemove",this.throttledHandleMouseMove),this.off(doc,"touchmove",this.throttledHandleMouseMove),this.off(doc,"mouseup",this.handleMouseUpHandler_),this.off(doc,"touchend",this.handleMouseUpHandler_)}handleMouseMove(event){this.volumeBar.handleMouseMove(event)}}VolumeControl.prototype.options_={children:["volumeBar"]},Component$1.registerComponent("VolumeControl",VolumeControl);class MuteToggle extends Button{constructor(player,options){super(player,options),function(self,player){player.tech_&&!player.tech_.featuresMuteControl&&self.addClass("vjs-hidden"),self.on(player,"loadstart",(function(){player.tech_.featuresMuteControl?self.removeClass("vjs-hidden"):self.addClass("vjs-hidden")}))}(this,player),this.on(player,["loadstart","volumechange"],(e=>this.update(e)))}buildCSSClass(){return"vjs-mute-control ".concat(super.buildCSSClass())}handleClick(event){const vol=this.player_.volume(),lastVolume=this.player_.lastVolume_();if(0===vol){const volumeToSet=lastVolume<.1?.1:lastVolume;this.player_.volume(volumeToSet),this.player_.muted(!1)}else this.player_.muted(!this.player_.muted())}update(event){this.updateIcon_(),this.updateControlText_()}updateIcon_(){const vol=this.player_.volume();let level=3;IS_IOS&&this.player_.tech_&&this.player_.tech_.el_&&this.player_.muted(this.player_.tech_.el_.muted),0===vol||this.player_.muted()?level=0:vol<.33?level=1:vol<.67&&(level=2),removeClass(this.el_,[0,1,2,3].reduce(((str,i)=>str+"".concat(i?" ":"","vjs-vol-").concat(i)),"")),addClass(this.el_,"vjs-vol-".concat(level))}updateControlText_(){const text=this.player_.muted()||0===this.player_.volume()?"Unmute":"Mute";this.controlText()!==text&&this.controlText(text)}}MuteToggle.prototype.controlText_="Mute",Component$1.registerComponent("MuteToggle",MuteToggle);class VolumePanel extends Component$1{constructor(player){let options=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};void 0!==options.inline?options.inline=options.inline:options.inline=!0,(void 0===options.volumeControl||isPlain(options.volumeControl))&&(options.volumeControl=options.volumeControl||{},options.volumeControl.vertical=!options.inline),super(player,options),this.handleKeyPressHandler_=e=>this.handleKeyPress(e),this.on(player,["loadstart"],(e=>this.volumePanelState_(e))),this.on(this.muteToggle,"keyup",(e=>this.handleKeyPress(e))),this.on(this.volumeControl,"keyup",(e=>this.handleVolumeControlKeyUp(e))),this.on("keydown",(e=>this.handleKeyPress(e))),this.on("mouseover",(e=>this.handleMouseOver(e))),this.on("mouseout",(e=>this.handleMouseOut(e))),this.on(this.volumeControl,["slideractive"],this.sliderActive_),this.on(this.volumeControl,["sliderinactive"],this.sliderInactive_)}sliderActive_(){this.addClass("vjs-slider-active")}sliderInactive_(){this.removeClass("vjs-slider-active")}volumePanelState_(){this.volumeControl.hasClass("vjs-hidden")&&this.muteToggle.hasClass("vjs-hidden")&&this.addClass("vjs-hidden"),this.volumeControl.hasClass("vjs-hidden")&&!this.muteToggle.hasClass("vjs-hidden")&&this.addClass("vjs-mute-toggle-only")}createEl(){let orientationClass="vjs-volume-panel-horizontal";return this.options_.inline||(orientationClass="vjs-volume-panel-vertical"),super.createEl("div",{className:"vjs-volume-panel vjs-control ".concat(orientationClass)})}dispose(){this.handleMouseOut(),super.dispose()}handleVolumeControlKeyUp(event){keycode.isEventKey(event,"Esc")&&this.muteToggle.focus()}handleMouseOver(event){this.addClass("vjs-hover"),on(document,"keyup",this.handleKeyPressHandler_)}handleMouseOut(event){this.removeClass("vjs-hover"),off(document,"keyup",this.handleKeyPressHandler_)}handleKeyPress(event){keycode.isEventKey(event,"Esc")&&this.handleMouseOut()}}VolumePanel.prototype.options_={children:["muteToggle","volumeControl"]},Component$1.registerComponent("VolumePanel",VolumePanel);Component$1.registerComponent("SkipForward",class extends Button{constructor(player,options){super(player,options),this.validOptions=[5,10,30],this.skipTime=this.getSkipForwardTime(),this.skipTime&&this.validOptions.includes(this.skipTime)?(this.controlText(this.localize("Skip forward {1} seconds",[this.skipTime])),this.show()):this.hide()}getSkipForwardTime(){const playerOptions=this.options_.playerOptions;return playerOptions.controlBar&&playerOptions.controlBar.skipButtons&&playerOptions.controlBar.skipButtons.forward}buildCSSClass(){return"vjs-skip-forward-".concat(this.getSkipForwardTime()," ").concat(super.buildCSSClass())}handleClick(event){const currentVideoTime=this.player_.currentTime(),liveTracker=this.player_.liveTracker,duration=liveTracker&&liveTracker.isLive()?liveTracker.seekableEnd():this.player_.duration();let newTime;newTime=currentVideoTime+this.skipTime<=duration?currentVideoTime+this.skipTime:duration,this.player_.currentTime(newTime)}handleLanguagechange(){this.controlText(this.localize("Skip forward {1} seconds",[this.skipTime]))}});class SkipBackward extends Button{constructor(player,options){super(player,options),this.validOptions=[5,10,30],this.skipTime=this.getSkipBackwardTime(),this.skipTime&&this.validOptions.includes(this.skipTime)?(this.controlText(this.localize("Skip backward {1} seconds",[this.skipTime])),this.show()):this.hide()}getSkipBackwardTime(){const playerOptions=this.options_.playerOptions;return playerOptions.controlBar&&playerOptions.controlBar.skipButtons&&playerOptions.controlBar.skipButtons.backward}buildCSSClass(){return"vjs-skip-backward-".concat(this.getSkipBackwardTime()," ").concat(super.buildCSSClass())}handleClick(event){const currentVideoTime=this.player_.currentTime(),liveTracker=this.player_.liveTracker,seekableStart=liveTracker&&liveTracker.isLive()&&liveTracker.seekableStart();let newTime;newTime=seekableStart&&currentVideoTime-this.skipTime<=seekableStart?seekableStart:currentVideoTime>=this.skipTime?currentVideoTime-this.skipTime:0,this.player_.currentTime(newTime)}handleLanguagechange(){this.controlText(this.localize("Skip backward {1} seconds",[this.skipTime]))}}SkipBackward.prototype.controlText_="Skip Backward",Component$1.registerComponent("SkipBackward",SkipBackward);class Menu extends Component$1{constructor(player,options){super(player,options),options&&(this.menuButton_=options.menuButton),this.focusedChild_=-1,this.on("keydown",(e=>this.handleKeyDown(e))),this.boundHandleBlur_=e=>this.handleBlur(e),this.boundHandleTapClick_=e=>this.handleTapClick(e)}addEventListenerForItem(component){component instanceof Component$1&&(this.on(component,"blur",this.boundHandleBlur_),this.on(component,["tap","click"],this.boundHandleTapClick_))}removeEventListenerForItem(component){component instanceof Component$1&&(this.off(component,"blur",this.boundHandleBlur_),this.off(component,["tap","click"],this.boundHandleTapClick_))}removeChild(component){"string"==typeof component&&(component=this.getChild(component)),this.removeEventListenerForItem(component),super.removeChild(component)}addItem(component){const childComponent=this.addChild(component);childComponent&&this.addEventListenerForItem(childComponent)}createEl(){const contentElType=this.options_.contentElType||"ul";this.contentEl_=createEl(contentElType,{className:"vjs-menu-content"}),this.contentEl_.setAttribute("role","menu");const el=super.createEl("div",{append:this.contentEl_,className:"vjs-menu"});return el.appendChild(this.contentEl_),on(el,"click",(function(event){event.preventDefault(),event.stopImmediatePropagation()})),el}dispose(){this.contentEl_=null,this.boundHandleBlur_=null,this.boundHandleTapClick_=null,super.dispose()}handleBlur(event){const relatedTarget=event.relatedTarget||document.activeElement;if(!this.children().some((element=>element.el()===relatedTarget))){const btn=this.menuButton_;btn&&btn.buttonPressed_&&relatedTarget!==btn.el().firstChild&&btn.unpressButton()}}handleTapClick(event){if(this.menuButton_){this.menuButton_.unpressButton();const childComponents=this.children();if(!Array.isArray(childComponents))return;const foundComponent=childComponents.filter((component=>component.el()===event.target))[0];if(!foundComponent)return;"CaptionSettingsMenuItem"!==foundComponent.name()&&this.menuButton_.focus()}}handleKeyDown(event){keycode.isEventKey(event,"Left")||keycode.isEventKey(event,"Down")?(event.preventDefault(),event.stopPropagation(),this.stepForward()):(keycode.isEventKey(event,"Right")||keycode.isEventKey(event,"Up"))&&(event.preventDefault(),event.stopPropagation(),this.stepBack())}stepForward(){let stepChild=0;void 0!==this.focusedChild_&&(stepChild=this.focusedChild_+1),this.focus(stepChild)}stepBack(){let stepChild=0;void 0!==this.focusedChild_&&(stepChild=this.focusedChild_-1),this.focus(stepChild)}focus(){let item=arguments.length>0&&void 0!==arguments[0]?arguments[0]:0;const children=this.children().slice();children.length&&children[0].hasClass("vjs-menu-title")&&children.shift(),children.length>0&&(item<0?item=0:item>=children.length&&(item=children.length-1),this.focusedChild_=item,children[item].el_.focus())}}Component$1.registerComponent("Menu",Menu);class MenuButton extends Component$1{constructor(player){let options=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};super(player,options),this.menuButton_=new Button(player,options),this.menuButton_.controlText(this.controlText_),this.menuButton_.el_.setAttribute("aria-haspopup","true");const buttonClass=Button.prototype.buildCSSClass();this.menuButton_.el_.className=this.buildCSSClass()+" "+buttonClass,this.menuButton_.removeClass("vjs-control"),this.addChild(this.menuButton_),this.update(),this.enabled_=!0;const handleClick=e=>this.handleClick(e);this.handleMenuKeyUp_=e=>this.handleMenuKeyUp(e),this.on(this.menuButton_,"tap",handleClick),this.on(this.menuButton_,"click",handleClick),this.on(this.menuButton_,"keydown",(e=>this.handleKeyDown(e))),this.on(this.menuButton_,"mouseenter",(()=>{this.addClass("vjs-hover"),this.menu.show(),on(document,"keyup",this.handleMenuKeyUp_)})),this.on("mouseleave",(e=>this.handleMouseLeave(e))),this.on("keydown",(e=>this.handleSubmenuKeyDown(e)))}update(){const menu=this.createMenu();this.menu&&(this.menu.dispose(),this.removeChild(this.menu)),this.menu=menu,this.addChild(menu),this.buttonPressed_=!1,this.menuButton_.el_.setAttribute("aria-expanded","false"),this.items&&this.items.length<=this.hideThreshold_?(this.hide(),this.menu.contentEl_.removeAttribute("role")):(this.show(),this.menu.contentEl_.setAttribute("role","menu"))}createMenu(){const menu=new Menu(this.player_,{menuButton:this});if(this.hideThreshold_=0,this.options_.title){const titleEl=createEl("li",{className:"vjs-menu-title",textContent:toTitleCase$1(this.options_.title),tabIndex:-1}),titleComponent=new Component$1(this.player_,{el:titleEl});menu.addItem(titleComponent)}if(this.items=this.createItems(),this.items)for(let i=0;i<this.items.length;i++)menu.addItem(this.items[i]);return menu}createItems(){}createEl(){return super.createEl("div",{className:this.buildWrapperCSSClass()},{})}buildWrapperCSSClass(){let menuButtonClass="vjs-menu-button";!0===this.options_.inline?menuButtonClass+="-inline":menuButtonClass+="-popup";const buttonClass=Button.prototype.buildCSSClass();return"vjs-menu-button ".concat(menuButtonClass," ").concat(buttonClass," ").concat(super.buildCSSClass())}buildCSSClass(){let menuButtonClass="vjs-menu-button";return!0===this.options_.inline?menuButtonClass+="-inline":menuButtonClass+="-popup","vjs-menu-button ".concat(menuButtonClass," ").concat(super.buildCSSClass())}controlText(text){let el=arguments.length>1&&void 0!==arguments[1]?arguments[1]:this.menuButton_.el();return this.menuButton_.controlText(text,el)}dispose(){this.handleMouseLeave(),super.dispose()}handleClick(event){this.buttonPressed_?this.unpressButton():this.pressButton()}handleMouseLeave(event){this.removeClass("vjs-hover"),off(document,"keyup",this.handleMenuKeyUp_)}focus(){this.menuButton_.focus()}blur(){this.menuButton_.blur()}handleKeyDown(event){keycode.isEventKey(event,"Esc")||keycode.isEventKey(event,"Tab")?(this.buttonPressed_&&this.unpressButton(),keycode.isEventKey(event,"Tab")||(event.preventDefault(),this.menuButton_.focus())):(keycode.isEventKey(event,"Up")||keycode.isEventKey(event,"Down"))&&(this.buttonPressed_||(event.preventDefault(),this.pressButton()))}handleMenuKeyUp(event){(keycode.isEventKey(event,"Esc")||keycode.isEventKey(event,"Tab"))&&this.removeClass("vjs-hover")}handleSubmenuKeyPress(event){this.handleSubmenuKeyDown(event)}handleSubmenuKeyDown(event){(keycode.isEventKey(event,"Esc")||keycode.isEventKey(event,"Tab"))&&(this.buttonPressed_&&this.unpressButton(),keycode.isEventKey(event,"Tab")||(event.preventDefault(),this.menuButton_.focus()))}pressButton(){if(this.enabled_){if(this.buttonPressed_=!0,this.menu.show(),this.menu.lockShowing(),this.menuButton_.el_.setAttribute("aria-expanded","true"),IS_IOS&&isInFrame())return;this.menu.focus()}}unpressButton(){this.enabled_&&(this.buttonPressed_=!1,this.menu.unlockShowing(),this.menu.hide(),this.menuButton_.el_.setAttribute("aria-expanded","false"))}disable(){this.unpressButton(),this.enabled_=!1,this.addClass("vjs-disabled"),this.menuButton_.disable()}enable(){this.enabled_=!0,this.removeClass("vjs-disabled"),this.menuButton_.enable()}}Component$1.registerComponent("MenuButton",MenuButton);class TrackButton extends MenuButton{constructor(player,options){const tracks=options.tracks;if(super(player,options),this.items.length<=1&&this.hide(),!tracks)return;const updateHandler=bind_(this,this.update);tracks.addEventListener("removetrack",updateHandler),tracks.addEventListener("addtrack",updateHandler),tracks.addEventListener("labelchange",updateHandler),this.player_.on("ready",updateHandler),this.player_.on("dispose",(function(){tracks.removeEventListener("removetrack",updateHandler),tracks.removeEventListener("addtrack",updateHandler),tracks.removeEventListener("labelchange",updateHandler)}))}}Component$1.registerComponent("TrackButton",TrackButton);const MenuKeys=["Tab","Esc","Up","Down","Right","Left"];class MenuItem extends ClickableComponent{constructor(player,options){super(player,options),this.selectable=options.selectable,this.isSelected_=options.selected||!1,this.multiSelectable=options.multiSelectable,this.selected(this.isSelected_),this.selectable?this.multiSelectable?this.el_.setAttribute("role","menuitemcheckbox"):this.el_.setAttribute("role","menuitemradio"):this.el_.setAttribute("role","menuitem")}createEl(type,props,attrs){this.nonIconControl=!0;const el=super.createEl("li",Object.assign({className:"vjs-menu-item",tabIndex:-1},props),attrs);return el.replaceChild(createEl("span",{className:"vjs-menu-item-text",textContent:this.localize(this.options_.label)}),el.querySelector(".vjs-icon-placeholder")),el}handleKeyDown(event){MenuKeys.some((key=>keycode.isEventKey(event,key)))||super.handleKeyDown(event)}handleClick(event){this.selected(!0)}selected(selected){this.selectable&&(selected?(this.addClass("vjs-selected"),this.el_.setAttribute("aria-checked","true"),this.controlText(", selected"),this.isSelected_=!0):(this.removeClass("vjs-selected"),this.el_.setAttribute("aria-checked","false"),this.controlText(""),this.isSelected_=!1))}}Component$1.registerComponent("MenuItem",MenuItem);class TextTrackMenuItem extends MenuItem{constructor(player,options){var _this3;const track=options.track,tracks=player.textTracks();options.label=track.label||track.language||"Unknown",options.selected="showing"===track.mode,super(player,options),_this3=this,this.track=track,this.kinds=(options.kinds||[options.kind||this.track.kind]).filter(Boolean);const changeHandler=function(){for(var _len17=arguments.length,args=new Array(_len17),_key17=0;_key17<_len17;_key17++)args[_key17]=arguments[_key17];_this3.handleTracksChange.apply(_this3,args)},selectedLanguageChangeHandler=function(){for(var _len18=arguments.length,args=new Array(_len18),_key18=0;_key18<_len18;_key18++)args[_key18]=arguments[_key18];_this3.handleSelectedLanguageChange.apply(_this3,args)};if(player.on(["loadstart","texttrackchange"],changeHandler),tracks.addEventListener("change",changeHandler),tracks.addEventListener("selectedlanguagechange",selectedLanguageChangeHandler),this.on("dispose",(function(){player.off(["loadstart","texttrackchange"],changeHandler),tracks.removeEventListener("change",changeHandler),tracks.removeEventListener("selectedlanguagechange",selectedLanguageChangeHandler)})),void 0===tracks.onchange){let event;this.on(["tap","click"],(function(){if("object"!=typeof window.Event)try{event=new window.Event("change")}catch(err){}event||(event=document.createEvent("Event"),event.initEvent("change",!0,!0)),tracks.dispatchEvent(event)}))}this.handleTracksChange()}handleClick(event){const referenceTrack=this.track,tracks=this.player_.textTracks();if(super.handleClick(event),tracks)for(let i=0;i<tracks.length;i++){const track=tracks[i];-1!==this.kinds.indexOf(track.kind)&&(track===referenceTrack?"showing"!==track.mode&&(track.mode="showing"):"disabled"!==track.mode&&(track.mode="disabled"))}}handleTracksChange(event){const shouldBeSelected="showing"===this.track.mode;shouldBeSelected!==this.isSelected_&&this.selected(shouldBeSelected)}handleSelectedLanguageChange(event){if("showing"===this.track.mode){const selectedLanguage=this.player_.cache_.selectedLanguage;if(selectedLanguage&&selectedLanguage.enabled&&selectedLanguage.language===this.track.language&&selectedLanguage.kind!==this.track.kind)return;this.player_.cache_.selectedLanguage={enabled:!0,language:this.track.language,kind:this.track.kind}}}dispose(){this.track=null,super.dispose()}}Component$1.registerComponent("TextTrackMenuItem",TextTrackMenuItem);class OffTextTrackMenuItem extends TextTrackMenuItem{constructor(player,options){options.track={player:player,kind:options.kind,kinds:options.kinds,default:!1,mode:"disabled"},options.kinds||(options.kinds=[options.kind]),options.label?options.track.label=options.label:options.track.label=options.kinds.join(" and ")+" off",options.selectable=!0,options.multiSelectable=!1,super(player,options)}handleTracksChange(event){const tracks=this.player().textTracks();let shouldBeSelected=!0;for(let i=0,l=tracks.length;i<l;i++){const track=tracks[i];if(this.options_.kinds.indexOf(track.kind)>-1&&"showing"===track.mode){shouldBeSelected=!1;break}}shouldBeSelected!==this.isSelected_&&this.selected(shouldBeSelected)}handleSelectedLanguageChange(event){const tracks=this.player().textTracks();let allHidden=!0;for(let i=0,l=tracks.length;i<l;i++){const track=tracks[i];if(["captions","descriptions","subtitles"].indexOf(track.kind)>-1&&"showing"===track.mode){allHidden=!1;break}}allHidden&&(this.player_.cache_.selectedLanguage={enabled:!1})}handleLanguagechange(){this.$(".vjs-menu-item-text").textContent=this.player_.localize(this.options_.label),super.handleLanguagechange()}}Component$1.registerComponent("OffTextTrackMenuItem",OffTextTrackMenuItem);class TextTrackButton extends TrackButton{constructor(player){let options=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};options.tracks=player.textTracks(),super(player,options)}createItems(){let label,items=arguments.length>0&&void 0!==arguments[0]?arguments[0]:[],TrackMenuItem=arguments.length>1&&void 0!==arguments[1]?arguments[1]:TextTrackMenuItem;this.label_&&(label="".concat(this.label_," off")),items.push(new OffTextTrackMenuItem(this.player_,{kinds:this.kinds_,kind:this.kind_,label:label})),this.hideThreshold_+=1;const tracks=this.player_.textTracks();Array.isArray(this.kinds_)||(this.kinds_=[this.kind_]);for(let i=0;i<tracks.length;i++){const track=tracks[i];if(this.kinds_.indexOf(track.kind)>-1){const item=new TrackMenuItem(this.player_,{track:track,kinds:this.kinds_,kind:this.kind_,selectable:!0,multiSelectable:!1});item.addClass("vjs-".concat(track.kind,"-menu-item")),items.push(item)}}return items}}Component$1.registerComponent("TextTrackButton",TextTrackButton);class ChaptersTrackMenuItem extends MenuItem{constructor(player,options){const track=options.track,cue=options.cue,currentTime=player.currentTime();options.selectable=!0,options.multiSelectable=!1,options.label=cue.text,options.selected=cue.startTime<=currentTime&&currentTime<cue.endTime,super(player,options),this.track=track,this.cue=cue}handleClick(event){super.handleClick(),this.player_.currentTime(this.cue.startTime)}}Component$1.registerComponent("ChaptersTrackMenuItem",ChaptersTrackMenuItem);class ChaptersButton extends TextTrackButton{constructor(player,options,ready){super(player,options,ready),this.selectCurrentItem_=()=>{this.items.forEach((item=>{item.selected(this.track_.activeCues[0]===item.cue)}))}}buildCSSClass(){return"vjs-chapters-button ".concat(super.buildCSSClass())}buildWrapperCSSClass(){return"vjs-chapters-button ".concat(super.buildWrapperCSSClass())}update(event){if(event&&event.track&&"chapters"!==event.track.kind)return;const track=this.findChaptersTrack();track!==this.track_?(this.setTrack(track),super.update()):(!this.items||track&&track.cues&&track.cues.length!==this.items.length)&&super.update()}setTrack(track){if(this.track_!==track){if(this.updateHandler_||(this.updateHandler_=this.update.bind(this)),this.track_){const remoteTextTrackEl=this.player_.remoteTextTrackEls().getTrackElementByTrack_(this.track_);remoteTextTrackEl&&remoteTextTrackEl.removeEventListener("load",this.updateHandler_),this.track_.removeEventListener("cuechange",this.selectCurrentItem_),this.track_=null}if(this.track_=track,this.track_){this.track_.mode="hidden";const remoteTextTrackEl=this.player_.remoteTextTrackEls().getTrackElementByTrack_(this.track_);remoteTextTrackEl&&remoteTextTrackEl.addEventListener("load",this.updateHandler_),this.track_.addEventListener("cuechange",this.selectCurrentItem_)}}}findChaptersTrack(){const tracks=this.player_.textTracks()||[];for(let i=tracks.length-1;i>=0;i--){const track=tracks[i];if(track.kind===this.kind_)return track}}getMenuCaption(){return this.track_&&this.track_.label?this.track_.label:this.localize(toTitleCase$1(this.kind_))}createMenu(){return this.options_.title=this.getMenuCaption(),super.createMenu()}createItems(){const items=[];if(!this.track_)return items;const cues=this.track_.cues;if(!cues)return items;for(let i=0,l=cues.length;i<l;i++){const cue=cues[i],mi=new ChaptersTrackMenuItem(this.player_,{track:this.track_,cue:cue});items.push(mi)}return items}}ChaptersButton.prototype.kind_="chapters",ChaptersButton.prototype.controlText_="Chapters",Component$1.registerComponent("ChaptersButton",ChaptersButton);class DescriptionsButton extends TextTrackButton{constructor(player,options,ready){super(player,options,ready);const tracks=player.textTracks(),changeHandler=bind_(this,this.handleTracksChange);tracks.addEventListener("change",changeHandler),this.on("dispose",(function(){tracks.removeEventListener("change",changeHandler)}))}handleTracksChange(event){const tracks=this.player().textTracks();let disabled=!1;for(let i=0,l=tracks.length;i<l;i++){const track=tracks[i];if(track.kind!==this.kind_&&"showing"===track.mode){disabled=!0;break}}disabled?this.disable():this.enable()}buildCSSClass(){return"vjs-descriptions-button ".concat(super.buildCSSClass())}buildWrapperCSSClass(){return"vjs-descriptions-button ".concat(super.buildWrapperCSSClass())}}DescriptionsButton.prototype.kind_="descriptions",DescriptionsButton.prototype.controlText_="Descriptions",Component$1.registerComponent("DescriptionsButton",DescriptionsButton);class SubtitlesButton extends TextTrackButton{constructor(player,options,ready){super(player,options,ready)}buildCSSClass(){return"vjs-subtitles-button ".concat(super.buildCSSClass())}buildWrapperCSSClass(){return"vjs-subtitles-button ".concat(super.buildWrapperCSSClass())}}SubtitlesButton.prototype.kind_="subtitles",SubtitlesButton.prototype.controlText_="Subtitles",Component$1.registerComponent("SubtitlesButton",SubtitlesButton);class CaptionSettingsMenuItem extends TextTrackMenuItem{constructor(player,options){options.track={player:player,kind:options.kind,label:options.kind+" settings",selectable:!1,default:!1,mode:"disabled"},options.selectable=!1,options.name="CaptionSettingsMenuItem",super(player,options),this.addClass("vjs-texttrack-settings"),this.controlText(", opens "+options.kind+" settings dialog")}handleClick(event){this.player().getChild("textTrackSettings").open()}handleLanguagechange(){this.$(".vjs-menu-item-text").textContent=this.player_.localize(this.options_.kind+" settings"),super.handleLanguagechange()}}Component$1.registerComponent("CaptionSettingsMenuItem",CaptionSettingsMenuItem);class CaptionsButton extends TextTrackButton{constructor(player,options,ready){super(player,options,ready)}buildCSSClass(){return"vjs-captions-button ".concat(super.buildCSSClass())}buildWrapperCSSClass(){return"vjs-captions-button ".concat(super.buildWrapperCSSClass())}createItems(){const items=[];return this.player().tech_&&this.player().tech_.featuresNativeTextTracks||!this.player().getChild("textTrackSettings")||(items.push(new CaptionSettingsMenuItem(this.player_,{kind:this.kind_})),this.hideThreshold_+=1),super.createItems(items)}}CaptionsButton.prototype.kind_="captions",CaptionsButton.prototype.controlText_="Captions",Component$1.registerComponent("CaptionsButton",CaptionsButton);class SubsCapsMenuItem extends TextTrackMenuItem{createEl(type,props,attrs){const el=super.createEl(type,props,attrs),parentSpan=el.querySelector(".vjs-menu-item-text");return"captions"===this.options_.track.kind&&(parentSpan.appendChild(createEl("span",{className:"vjs-icon-placeholder"},{"aria-hidden":!0})),parentSpan.appendChild(createEl("span",{className:"vjs-control-text",textContent:" ".concat(this.localize("Captions"))}))),el}}Component$1.registerComponent("SubsCapsMenuItem",SubsCapsMenuItem);class SubsCapsButton extends TextTrackButton{constructor(player){super(player,arguments.length>1&&void 0!==arguments[1]?arguments[1]:{}),this.label_="subtitles",["en","en-us","en-ca","fr-ca"].indexOf(this.player_.language_)>-1&&(this.label_="captions"),this.menuButton_.controlText(toTitleCase$1(this.label_))}buildCSSClass(){return"vjs-subs-caps-button ".concat(super.buildCSSClass())}buildWrapperCSSClass(){return"vjs-subs-caps-button ".concat(super.buildWrapperCSSClass())}createItems(){let items=[];return this.player().tech_&&this.player().tech_.featuresNativeTextTracks||!this.player().getChild("textTrackSettings")||(items.push(new CaptionSettingsMenuItem(this.player_,{kind:this.label_})),this.hideThreshold_+=1),items=super.createItems(items,SubsCapsMenuItem),items}}SubsCapsButton.prototype.kinds_=["captions","subtitles"],SubsCapsButton.prototype.controlText_="Subtitles",Component$1.registerComponent("SubsCapsButton",SubsCapsButton);class AudioTrackMenuItem extends MenuItem{constructor(player,options){var _this4;const track=options.track,tracks=player.audioTracks();options.label=track.label||track.language||"Unknown",options.selected=track.enabled,super(player,options),_this4=this,this.track=track,this.addClass("vjs-".concat(track.kind,"-menu-item"));const changeHandler=function(){for(var _len19=arguments.length,args=new Array(_len19),_key19=0;_key19<_len19;_key19++)args[_key19]=arguments[_key19];_this4.handleTracksChange.apply(_this4,args)};tracks.addEventListener("change",changeHandler),this.on("dispose",(()=>{tracks.removeEventListener("change",changeHandler)}))}createEl(type,props,attrs){const el=super.createEl(type,props,attrs),parentSpan=el.querySelector(".vjs-menu-item-text");return"main-desc"===this.options_.track.kind&&(parentSpan.appendChild(createEl("span",{className:"vjs-icon-placeholder"},{"aria-hidden":!0})),parentSpan.appendChild(createEl("span",{className:"vjs-control-text",textContent:" "+this.localize("Descriptions")}))),el}handleClick(event){if(super.handleClick(event),this.track.enabled=!0,this.player_.tech_.featuresNativeAudioTracks){const tracks=this.player_.audioTracks();for(let i=0;i<tracks.length;i++){const track=tracks[i];track!==this.track&&(track.enabled=track===this.track)}}}handleTracksChange(event){this.selected(this.track.enabled)}}Component$1.registerComponent("AudioTrackMenuItem",AudioTrackMenuItem);class AudioTrackButton extends TrackButton{constructor(player){let options=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};options.tracks=player.audioTracks(),super(player,options)}buildCSSClass(){return"vjs-audio-button ".concat(super.buildCSSClass())}buildWrapperCSSClass(){return"vjs-audio-button ".concat(super.buildWrapperCSSClass())}createItems(){let items=arguments.length>0&&void 0!==arguments[0]?arguments[0]:[];this.hideThreshold_=1;const tracks=this.player_.audioTracks();for(let i=0;i<tracks.length;i++){const track=tracks[i];items.push(new AudioTrackMenuItem(this.player_,{track:track,selectable:!0,multiSelectable:!1}))}return items}}AudioTrackButton.prototype.controlText_="Audio Track",Component$1.registerComponent("AudioTrackButton",AudioTrackButton);class PlaybackRateMenuItem extends MenuItem{constructor(player,options){const label=options.rate,rate=parseFloat(label,10);options.label=label,options.selected=rate===player.playbackRate(),options.selectable=!0,options.multiSelectable=!1,super(player,options),this.label=label,this.rate=rate,this.on(player,"ratechange",(e=>this.update(e)))}handleClick(event){super.handleClick(),this.player().playbackRate(this.rate)}update(event){this.selected(this.player().playbackRate()===this.rate)}}PlaybackRateMenuItem.prototype.contentElType="button",Component$1.registerComponent("PlaybackRateMenuItem",PlaybackRateMenuItem);class PlaybackRateMenuButton extends MenuButton{constructor(player,options){super(player,options),this.menuButton_.el_.setAttribute("aria-describedby",this.labelElId_),this.updateVisibility(),this.updateLabel(),this.on(player,"loadstart",(e=>this.updateVisibility(e))),this.on(player,"ratechange",(e=>this.updateLabel(e))),this.on(player,"playbackrateschange",(e=>this.handlePlaybackRateschange(e)))}createEl(){const el=super.createEl();return this.labelElId_="vjs-playback-rate-value-label-"+this.id_,this.labelEl_=createEl("div",{className:"vjs-playback-rate-value",id:this.labelElId_,textContent:"1x"}),el.appendChild(this.labelEl_),el}dispose(){this.labelEl_=null,super.dispose()}buildCSSClass(){return"vjs-playback-rate ".concat(super.buildCSSClass())}buildWrapperCSSClass(){return"vjs-playback-rate ".concat(super.buildWrapperCSSClass())}createItems(){const rates=this.playbackRates(),items=[];for(let i=rates.length-1;i>=0;i--)items.push(new PlaybackRateMenuItem(this.player(),{rate:rates[i]+"x"}));return items}handlePlaybackRateschange(event){this.update()}playbackRates(){const player=this.player();return player.playbackRates&&player.playbackRates()||[]}playbackRateSupported(){return this.player().tech_&&this.player().tech_.featuresPlaybackRate&&this.playbackRates()&&this.playbackRates().length>0}updateVisibility(event){this.playbackRateSupported()?this.removeClass("vjs-hidden"):this.addClass("vjs-hidden")}updateLabel(event){this.playbackRateSupported()&&(this.labelEl_.textContent=this.player().playbackRate()+"x")}}PlaybackRateMenuButton.prototype.controlText_="Playback Rate",Component$1.registerComponent("PlaybackRateMenuButton",PlaybackRateMenuButton);class Spacer extends Component$1{buildCSSClass(){return"vjs-spacer ".concat(super.buildCSSClass())}createEl(){let tag=arguments.length>0&&void 0!==arguments[0]?arguments[0]:"div",props=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{},attributes=arguments.length>2&&void 0!==arguments[2]?arguments[2]:{};return props.className||(props.className=this.buildCSSClass()),super.createEl(tag,props,attributes)}}Component$1.registerComponent("Spacer",Spacer);Component$1.registerComponent("CustomControlSpacer",class extends Spacer{buildCSSClass(){return"vjs-custom-control-spacer ".concat(super.buildCSSClass())}createEl(){return super.createEl("div",{className:this.buildCSSClass(),textContent:" "})}});class ControlBar extends Component$1{createEl(){return super.createEl("div",{className:"vjs-control-bar",dir:"ltr"})}}ControlBar.prototype.options_={children:["playToggle","skipBackward","skipForward","volumePanel","currentTimeDisplay","timeDivider","durationDisplay","progressControl","liveDisplay","seekToLive","remainingTimeDisplay","customControlSpacer","playbackRateMenuButton","chaptersButton","descriptionsButton","subsCapsButton","audioTrackButton","fullscreenToggle"]},"exitPictureInPicture"in document&&ControlBar.prototype.options_.children.splice(ControlBar.prototype.options_.children.length-1,0,"pictureInPictureToggle"),Component$1.registerComponent("ControlBar",ControlBar);class ErrorDisplay extends ModalDialog{constructor(player,options){super(player,options),this.on(player,"error",(e=>this.open(e)))}buildCSSClass(){return"vjs-error-display ".concat(super.buildCSSClass())}content(){const error=this.player().error();return error?this.localize(error.message):""}}ErrorDisplay.prototype.options_=Object.assign({},ModalDialog.prototype.options_,{pauseOnOpen:!1,fillAlways:!0,temporary:!1,uncloseable:!0}),Component$1.registerComponent("ErrorDisplay",ErrorDisplay);const COLOR_BLACK=["#000","Black"],COLOR_BLUE=["#00F","Blue"],COLOR_CYAN=["#0FF","Cyan"],COLOR_GREEN=["#0F0","Green"],COLOR_MAGENTA=["#F0F","Magenta"],COLOR_RED=["#F00","Red"],COLOR_WHITE=["#FFF","White"],COLOR_YELLOW=["#FF0","Yellow"],OPACITY_OPAQUE=["1","Opaque"],OPACITY_SEMI=["0.5","Semi-Transparent"],OPACITY_TRANS=["0","Transparent"],selectConfigs={backgroundColor:{selector:".vjs-bg-color > select",id:"captions-background-color-%s",label:"Color",options:[COLOR_BLACK,COLOR_WHITE,COLOR_RED,COLOR_GREEN,COLOR_BLUE,COLOR_YELLOW,COLOR_MAGENTA,COLOR_CYAN]},backgroundOpacity:{selector:".vjs-bg-opacity > select",id:"captions-background-opacity-%s",label:"Opacity",options:[OPACITY_OPAQUE,OPACITY_SEMI,OPACITY_TRANS]},color:{selector:".vjs-text-color > select",id:"captions-foreground-color-%s",label:"Color",options:[COLOR_WHITE,COLOR_BLACK,COLOR_RED,COLOR_GREEN,COLOR_BLUE,COLOR_YELLOW,COLOR_MAGENTA,COLOR_CYAN]},edgeStyle:{selector:".vjs-edge-style > select",id:"%s",label:"Text Edge Style",options:[["none","None"],["raised","Raised"],["depressed","Depressed"],["uniform","Uniform"],["dropshadow","Dropshadow"]]},fontFamily:{selector:".vjs-font-family > select",id:"captions-font-family-%s",label:"Font Family",options:[["proportionalSansSerif","Proportional Sans-Serif"],["monospaceSansSerif","Monospace Sans-Serif"],["proportionalSerif","Proportional Serif"],["monospaceSerif","Monospace Serif"],["casual","Casual"],["script","Script"],["small-caps","Small Caps"]]},fontPercent:{selector:".vjs-font-percent > select",id:"captions-font-size-%s",label:"Font Size",options:[["0.50","50%"],["0.75","75%"],["1.00","100%"],["1.25","125%"],["1.50","150%"],["1.75","175%"],["2.00","200%"],["3.00","300%"],["4.00","400%"]],default:2,parser:v=>"1.00"===v?null:Number(v)},textOpacity:{selector:".vjs-text-opacity > select",id:"captions-foreground-opacity-%s",label:"Opacity",options:[OPACITY_OPAQUE,OPACITY_SEMI]},windowColor:{selector:".vjs-window-color > select",id:"captions-window-color-%s",label:"Color"},windowOpacity:{selector:".vjs-window-opacity > select",id:"captions-window-opacity-%s",label:"Opacity",options:[OPACITY_TRANS,OPACITY_SEMI,OPACITY_OPAQUE]}};function parseOptionValue(value,parser){if(parser&&(value=parser(value)),value&&"none"!==value)return value}selectConfigs.windowColor.options=selectConfigs.backgroundColor.options;Component$1.registerComponent("TextTrackSettings",class extends ModalDialog{constructor(player,options){options.temporary=!1,super(player,options),this.updateDisplay=this.updateDisplay.bind(this),this.fill(),this.hasBeenOpened_=this.hasBeenFilled_=!0,this.endDialog=createEl("p",{className:"vjs-control-text",textContent:this.localize("End of dialog window.")}),this.el().appendChild(this.endDialog),this.setDefaults(),void 0===options.persistTextTrackSettings&&(this.options_.persistTextTrackSettings=this.options_.playerOptions.persistTextTrackSettings),this.on(this.$(".vjs-done-button"),"click",(()=>{this.saveSettings(),this.close()})),this.on(this.$(".vjs-default-button"),"click",(()=>{this.setDefaults(),this.updateDisplay()})),each(selectConfigs,(config=>{this.on(this.$(config.selector),"change",this.updateDisplay)})),this.options_.persistTextTrackSettings&&this.restoreSettings()}dispose(){this.endDialog=null,super.dispose()}createElSelect_(key){let legendId=arguments.length>1&&void 0!==arguments[1]?arguments[1]:"",type=arguments.length>2&&void 0!==arguments[2]?arguments[2]:"label";const config=selectConfigs[key],id=config.id.replace("%s",this.id_),selectLabelledbyIds=[legendId,id].join(" ").trim();return["<".concat(type,' id="').concat(id,'" class="').concat("label"===type?"vjs-label":"",'">'),this.localize(config.label),"</".concat(type,">"),'<select aria-labelledby="'.concat(selectLabelledbyIds,'">')].concat(config.options.map((o=>{const optionId=id+"-"+o[1].replace(/\W+/g,"");return['<option id="'.concat(optionId,'" value="').concat(o[0],'" '),'aria-labelledby="'.concat(selectLabelledbyIds," ").concat(optionId,'">'),this.localize(o[1]),"</option>"].join("")}))).concat("</select>").join("")}createElFgColor_(){const legendId="captions-text-legend-".concat(this.id_);return['<fieldset class="vjs-fg vjs-track-setting">','<legend id="'.concat(legendId,'">'),this.localize("Text"),"</legend>",'<span class="vjs-text-color">',this.createElSelect_("color",legendId),"</span>",'<span class="vjs-text-opacity vjs-opacity">',this.createElSelect_("textOpacity",legendId),"</span>","</fieldset>"].join("")}createElBgColor_(){const legendId="captions-background-".concat(this.id_);return['<fieldset class="vjs-bg vjs-track-setting">','<legend id="'.concat(legendId,'">'),this.localize("Text Background"),"</legend>",'<span class="vjs-bg-color">',this.createElSelect_("backgroundColor",legendId),"</span>",'<span class="vjs-bg-opacity vjs-opacity">',this.createElSelect_("backgroundOpacity",legendId),"</span>","</fieldset>"].join("")}createElWinColor_(){const legendId="captions-window-".concat(this.id_);return['<fieldset class="vjs-window vjs-track-setting">','<legend id="'.concat(legendId,'">'),this.localize("Caption Area Background"),"</legend>",'<span class="vjs-window-color">',this.createElSelect_("windowColor",legendId),"</span>",'<span class="vjs-window-opacity vjs-opacity">',this.createElSelect_("windowOpacity",legendId),"</span>","</fieldset>"].join("")}createElColors_(){return createEl("div",{className:"vjs-track-settings-colors",innerHTML:[this.createElFgColor_(),this.createElBgColor_(),this.createElWinColor_()].join("")})}createElFont_(){return createEl("div",{className:"vjs-track-settings-font",innerHTML:['<fieldset class="vjs-font-percent vjs-track-setting">',this.createElSelect_("fontPercent","","legend"),"</fieldset>",'<fieldset class="vjs-edge-style vjs-track-setting">',this.createElSelect_("edgeStyle","","legend"),"</fieldset>",'<fieldset class="vjs-font-family vjs-track-setting">',this.createElSelect_("fontFamily","","legend"),"</fieldset>"].join("")})}createElControls_(){const defaultsDescription=this.localize("restore all settings to the default values");return createEl("div",{className:"vjs-track-settings-controls",innerHTML:['<button type="button" class="vjs-default-button" title="'.concat(defaultsDescription,'">'),this.localize("Reset"),'<span class="vjs-control-text"> '.concat(defaultsDescription,"</span>"),"</button>",'<button type="button" class="vjs-done-button">'.concat(this.localize("Done"),"</button>")].join("")})}content(){return[this.createElColors_(),this.createElFont_(),this.createElControls_()]}label(){return this.localize("Caption Settings Dialog")}description(){return this.localize("Beginning of dialog window. Escape will cancel and close the window.")}buildCSSClass(){return super.buildCSSClass()+" vjs-text-track-settings"}getValues(){return reduce(selectConfigs,((accum,config,key)=>{const value=(el=this.$(config.selector),parser=config.parser,parseOptionValue(el.options[el.options.selectedIndex].value,parser));var el,parser;return void 0!==value&&(accum[key]=value),accum}),{})}setValues(values){each(selectConfigs,((config,key)=>{!function(el,value,parser){if(value)for(let i=0;i<el.options.length;i++)if(parseOptionValue(el.options[i].value,parser)===value){el.selectedIndex=i;break}}(this.$(config.selector),values[key],config.parser)}))}setDefaults(){each(selectConfigs,(config=>{const index=config.hasOwnProperty("default")?config.default:0;this.$(config.selector).selectedIndex=index}))}restoreSettings(){let values;try{values=JSON.parse(window.localStorage.getItem("vjs-text-track-settings"))}catch(err){log$1.warn(err)}values&&this.setValues(values)}saveSettings(){if(!this.options_.persistTextTrackSettings)return;const values=this.getValues();try{Object.keys(values).length?window.localStorage.setItem("vjs-text-track-settings",JSON.stringify(values)):window.localStorage.removeItem("vjs-text-track-settings")}catch(err){log$1.warn(err)}}updateDisplay(){const ttDisplay=this.player_.getChild("textTrackDisplay");ttDisplay&&ttDisplay.updateDisplay()}conditionalBlur_(){this.previouslyActiveEl_=null;const cb=this.player_.controlBar,subsCapsBtn=cb&&cb.subsCapsButton,ccBtn=cb&&cb.captionsButton;subsCapsBtn?subsCapsBtn.focus():ccBtn&&ccBtn.focus()}handleLanguagechange(){this.fill()}});Component$1.registerComponent("ResizeManager",class extends Component$1{constructor(player,options){let RESIZE_OBSERVER_AVAILABLE=options.ResizeObserver||window.ResizeObserver;null===options.ResizeObserver&&(RESIZE_OBSERVER_AVAILABLE=!1);super(player,merge$2({createEl:!RESIZE_OBSERVER_AVAILABLE,reportTouchActivity:!1},options)),this.ResizeObserver=options.ResizeObserver||window.ResizeObserver,this.loadListener_=null,this.resizeObserver_=null,this.debouncedHandler_=debounce((()=>{this.resizeHandler()}),100,!1,this),RESIZE_OBSERVER_AVAILABLE?(this.resizeObserver_=new this.ResizeObserver(this.debouncedHandler_),this.resizeObserver_.observe(player.el())):(this.loadListener_=()=>{if(!this.el_||!this.el_.contentWindow)return;const debouncedHandler_=this.debouncedHandler_;let unloadListener_=this.unloadListener_=function(){off(this,"resize",debouncedHandler_),off(this,"unload",unloadListener_),unloadListener_=null};on(this.el_.contentWindow,"unload",unloadListener_),on(this.el_.contentWindow,"resize",debouncedHandler_)},this.one("load",this.loadListener_))}createEl(){return super.createEl("iframe",{className:"vjs-resize-manager",tabIndex:-1,title:this.localize("No content")},{"aria-hidden":"true"})}resizeHandler(){this.player_&&this.player_.trigger&&this.player_.trigger("playerresize")}dispose(){this.debouncedHandler_&&this.debouncedHandler_.cancel(),this.resizeObserver_&&(this.player_.el()&&this.resizeObserver_.unobserve(this.player_.el()),this.resizeObserver_.disconnect()),this.loadListener_&&this.off("load",this.loadListener_),this.el_&&this.el_.contentWindow&&this.unloadListener_&&this.unloadListener_.call(this.el_.contentWindow),this.ResizeObserver=null,this.resizeObserver=null,this.debouncedHandler_=null,this.loadListener_=null,super.dispose()}});const defaults={trackingThreshold:20,liveTolerance:15};Component$1.registerComponent("LiveTracker",class extends Component$1{constructor(player,options){super(player,merge$2(defaults,options,{createEl:!1})),this.trackLiveHandler_=()=>this.trackLive_(),this.handlePlay_=e=>this.handlePlay(e),this.handleFirstTimeupdate_=e=>this.handleFirstTimeupdate(e),this.handleSeeked_=e=>this.handleSeeked(e),this.seekToLiveEdge_=e=>this.seekToLiveEdge(e),this.reset_(),this.on(this.player_,"durationchange",(e=>this.handleDurationchange(e))),this.on(this.player_,"canplay",(()=>this.toggleTracking()))}trackLive_(){const seekable=this.player_.seekable();if(!seekable||!seekable.length)return;const newTime=Number(window.performance.now().toFixed(4)),deltaTime=-1===this.lastTime_?0:(newTime-this.lastTime_)/1e3;this.lastTime_=newTime,this.pastSeekEnd_=this.pastSeekEnd()+deltaTime;const liveCurrentTime=this.liveCurrentTime(),currentTime=this.player_.currentTime();let isBehind=this.player_.paused()||this.seekedBehindLive_||Math.abs(liveCurrentTime-currentTime)>this.options_.liveTolerance;this.timeupdateSeen_&&liveCurrentTime!==1/0||(isBehind=!1),isBehind!==this.behindLiveEdge_&&(this.behindLiveEdge_=isBehind,this.trigger("liveedgechange"))}handleDurationchange(){this.toggleTracking()}toggleTracking(){this.player_.duration()===1/0&&this.liveWindow()>=this.options_.trackingThreshold?(this.player_.options_.liveui&&this.player_.addClass("vjs-liveui"),this.startTracking()):(this.player_.removeClass("vjs-liveui"),this.stopTracking())}startTracking(){this.isTracking()||(this.timeupdateSeen_||(this.timeupdateSeen_=this.player_.hasStarted()),this.trackingInterval_=this.setInterval(this.trackLiveHandler_,30),this.trackLive_(),this.on(this.player_,["play","pause"],this.trackLiveHandler_),this.timeupdateSeen_?this.on(this.player_,"seeked",this.handleSeeked_):(this.one(this.player_,"play",this.handlePlay_),this.one(this.player_,"timeupdate",this.handleFirstTimeupdate_)))}handleFirstTimeupdate(){this.timeupdateSeen_=!0,this.on(this.player_,"seeked",this.handleSeeked_)}handleSeeked(){const timeDiff=Math.abs(this.liveCurrentTime()-this.player_.currentTime());this.seekedBehindLive_=this.nextSeekedFromUser_&&timeDiff>2,this.nextSeekedFromUser_=!1,this.trackLive_()}handlePlay(){this.one(this.player_,"timeupdate",this.seekToLiveEdge_)}reset_(){this.lastTime_=-1,this.pastSeekEnd_=0,this.lastSeekEnd_=-1,this.behindLiveEdge_=!0,this.timeupdateSeen_=!1,this.seekedBehindLive_=!1,this.nextSeekedFromUser_=!1,this.clearInterval(this.trackingInterval_),this.trackingInterval_=null,this.off(this.player_,["play","pause"],this.trackLiveHandler_),this.off(this.player_,"seeked",this.handleSeeked_),this.off(this.player_,"play",this.handlePlay_),this.off(this.player_,"timeupdate",this.handleFirstTimeupdate_),this.off(this.player_,"timeupdate",this.seekToLiveEdge_)}nextSeekedFromUser(){this.nextSeekedFromUser_=!0}stopTracking(){this.isTracking()&&(this.reset_(),this.trigger("liveedgechange"))}seekableEnd(){const seekable=this.player_.seekable(),seekableEnds=[];let i=seekable?seekable.length:0;for(;i--;)seekableEnds.push(seekable.end(i));return seekableEnds.length?seekableEnds.sort()[seekableEnds.length-1]:1/0}seekableStart(){const seekable=this.player_.seekable(),seekableStarts=[];let i=seekable?seekable.length:0;for(;i--;)seekableStarts.push(seekable.start(i));return seekableStarts.length?seekableStarts.sort()[0]:0}liveWindow(){const liveCurrentTime=this.liveCurrentTime();return liveCurrentTime===1/0?0:liveCurrentTime-this.seekableStart()}isLive(){return this.isTracking()}atLiveEdge(){return!this.behindLiveEdge()}liveCurrentTime(){return this.pastSeekEnd()+this.seekableEnd()}pastSeekEnd(){const seekableEnd=this.seekableEnd();return-1!==this.lastSeekEnd_&&seekableEnd!==this.lastSeekEnd_&&(this.pastSeekEnd_=0),this.lastSeekEnd_=seekableEnd,this.pastSeekEnd_}behindLiveEdge(){return this.behindLiveEdge_}isTracking(){return"number"==typeof this.trackingInterval_}seekToLiveEdge(){this.seekedBehindLive_=!1,this.atLiveEdge()||(this.nextSeekedFromUser_=!1,this.player_.currentTime(this.liveCurrentTime()))}dispose(){this.stopTracking(),super.dispose()}});Component$1.registerComponent("TitleBar",class extends Component$1{constructor(player,options){super(player,options),this.on("statechanged",(e=>this.updateDom_())),this.updateDom_()}createEl(){return this.els={title:createEl("div",{className:"vjs-title-bar-title",id:"vjs-title-bar-title-".concat(newGUID())}),description:createEl("div",{className:"vjs-title-bar-description",id:"vjs-title-bar-description-".concat(newGUID())})},createEl("div",{className:"vjs-title-bar"},{},Object.values(this.els))}updateDom_(){const tech=this.player_.tech_,techEl=tech&&tech.el_,techAriaAttrs={title:"aria-labelledby",description:"aria-describedby"};["title","description"].forEach((k=>{const value=this.state[k],el=this.els[k],techAriaAttr=techAriaAttrs[k];emptyEl(el),value&&textContent(el,value),techEl&&(techEl.removeAttribute(techAriaAttr),value&&techEl.setAttribute(techAriaAttr,el.id))})),this.state.title||this.state.description?this.show():this.hide()}update(options){this.setState(options)}dispose(){const tech=this.player_.tech_,techEl=tech&&tech.el_;techEl&&(techEl.removeAttribute("aria-labelledby"),techEl.removeAttribute("aria-describedby")),super.dispose(),this.els=null}});const sourcesetLoad=tech=>{const el=tech.el();if(el.hasAttribute("src"))return tech.triggerSourceset(el.src),!0;const sources=tech.$$("source"),srcUrls=[];let src="";if(!sources.length)return!1;for(let i=0;i<sources.length;i++){const url=sources[i].src;url&&-1===srcUrls.indexOf(url)&&srcUrls.push(url)}return!!srcUrls.length&&(1===srcUrls.length&&(src=srcUrls[0]),tech.triggerSourceset(src),!0)},innerHTMLDescriptorPolyfill=Object.defineProperty({},"innerHTML",{get(){return this.cloneNode(!0).innerHTML},set(v){const dummy=document.createElement(this.nodeName.toLowerCase());dummy.innerHTML=v;const docFrag=document.createDocumentFragment();for(;dummy.childNodes.length;)docFrag.appendChild(dummy.childNodes[0]);return this.innerText="",window.Element.prototype.appendChild.call(this,docFrag),this.innerHTML}}),getDescriptor=(priority,prop)=>{let descriptor={};for(let i=0;i<priority.length&&(descriptor=Object.getOwnPropertyDescriptor(priority[i],prop),!(descriptor&&descriptor.set&&descriptor.get));i++);return descriptor.enumerable=!0,descriptor.configurable=!0,descriptor},firstSourceWatch=function(tech){const el=tech.el();if(el.resetSourceWatch_)return;const old={},innerDescriptor=(tech=>getDescriptor([tech.el(),window.HTMLMediaElement.prototype,window.Element.prototype,innerHTMLDescriptorPolyfill],"innerHTML"))(tech),appendWrapper=appendFn=>function(){for(var _len20=arguments.length,args=new Array(_len20),_key20=0;_key20<_len20;_key20++)args[_key20]=arguments[_key20];const retval=appendFn.apply(el,args);return sourcesetLoad(tech),retval};["append","appendChild","insertAdjacentHTML"].forEach((k=>{el[k]&&(old[k]=el[k],el[k]=appendWrapper(old[k]))})),Object.defineProperty(el,"innerHTML",merge$2(innerDescriptor,{set:appendWrapper(innerDescriptor.set)})),el.resetSourceWatch_=()=>{el.resetSourceWatch_=null,Object.keys(old).forEach((k=>{el[k]=old[k]})),Object.defineProperty(el,"innerHTML",innerDescriptor)},tech.one("sourceset",el.resetSourceWatch_)},srcDescriptorPolyfill=Object.defineProperty({},"src",{get(){return this.hasAttribute("src")?getAbsoluteURL(window.Element.prototype.getAttribute.call(this,"src")):""},set(v){return window.Element.prototype.setAttribute.call(this,"src",v),v}}),setupSourceset=function(tech){if(!tech.featuresSourceset)return;const el=tech.el();if(el.resetSourceset_)return;const srcDescriptor=(tech=>getDescriptor([tech.el(),window.HTMLMediaElement.prototype,srcDescriptorPolyfill],"src"))(tech),oldSetAttribute=el.setAttribute,oldLoad=el.load;Object.defineProperty(el,"src",merge$2(srcDescriptor,{set:v=>{const retval=srcDescriptor.set.call(el,v);return tech.triggerSourceset(el.src),retval}})),el.setAttribute=(n,v)=>{const retval=oldSetAttribute.call(el,n,v);return/src/i.test(n)&&tech.triggerSourceset(el.src),retval},el.load=()=>{const retval=oldLoad.call(el);return sourcesetLoad(tech)||(tech.triggerSourceset(""),firstSourceWatch(tech)),retval},el.currentSrc?tech.triggerSourceset(el.currentSrc):sourcesetLoad(tech)||firstSourceWatch(tech),el.resetSourceset_=()=>{el.resetSourceset_=null,el.load=oldLoad,el.setAttribute=oldSetAttribute,Object.defineProperty(el,"src",srcDescriptor),el.resetSourceWatch_&&el.resetSourceWatch_()}};class Html5 extends Tech{constructor(options,ready){super(options,ready);const source=options.source;let crossoriginTracks=!1;if(this.featuresVideoFrameCallback=this.featuresVideoFrameCallback&&"VIDEO"===this.el_.tagName,source&&(this.el_.currentSrc!==source.src||options.tag&&3===options.tag.initNetworkState_)?this.setSource(source):this.handleLateInit_(this.el_),options.enableSourceset&&this.setupSourcesetHandling_(),this.isScrubbing_=!1,this.el_.hasChildNodes()){const nodes=this.el_.childNodes;let nodesLength=nodes.length;const removeNodes=[];for(;nodesLength--;){const node=nodes[nodesLength];"track"===node.nodeName.toLowerCase()&&(this.featuresNativeTextTracks?(this.remoteTextTrackEls().addTrackElement_(node),this.remoteTextTracks().addTrack(node.track),this.textTracks().addTrack(node.track),crossoriginTracks||this.el_.hasAttribute("crossorigin")||!isCrossOrigin(node.src)||(crossoriginTracks=!0)):removeNodes.push(node))}for(let i=0;i<removeNodes.length;i++)this.el_.removeChild(removeNodes[i])}this.proxyNativeTracks_(),this.featuresNativeTextTracks&&crossoriginTracks&&log$1.warn("Text Tracks are being loaded from another origin but the crossorigin attribute isn't used.\nThis may prevent text tracks from loading."),this.restoreMetadataTracksInIOSNativePlayer_(),(TOUCH_ENABLED||IS_IPHONE)&&!0===options.nativeControlsForTouch&&this.setControls(!0),this.proxyWebkitFullscreen_(),this.triggerReady()}dispose(){this.el_&&this.el_.resetSourceset_&&this.el_.resetSourceset_(),Html5.disposeMediaElement(this.el_),this.options_=null,super.dispose()}setupSourcesetHandling_(){setupSourceset(this)}restoreMetadataTracksInIOSNativePlayer_(){const textTracks=this.textTracks();let metadataTracksPreFullscreenState;const takeMetadataTrackSnapshot=()=>{metadataTracksPreFullscreenState=[];for(let i=0;i<textTracks.length;i++){const track=textTracks[i];"metadata"===track.kind&&metadataTracksPreFullscreenState.push({track:track,storedMode:track.mode})}};takeMetadataTrackSnapshot(),textTracks.addEventListener("change",takeMetadataTrackSnapshot),this.on("dispose",(()=>textTracks.removeEventListener("change",takeMetadataTrackSnapshot)));const restoreTrackMode=()=>{for(let i=0;i<metadataTracksPreFullscreenState.length;i++){const storedTrack=metadataTracksPreFullscreenState[i];"disabled"===storedTrack.track.mode&&storedTrack.track.mode!==storedTrack.storedMode&&(storedTrack.track.mode=storedTrack.storedMode)}textTracks.removeEventListener("change",restoreTrackMode)};this.on("webkitbeginfullscreen",(()=>{textTracks.removeEventListener("change",takeMetadataTrackSnapshot),textTracks.removeEventListener("change",restoreTrackMode),textTracks.addEventListener("change",restoreTrackMode)})),this.on("webkitendfullscreen",(()=>{textTracks.removeEventListener("change",takeMetadataTrackSnapshot),textTracks.addEventListener("change",takeMetadataTrackSnapshot),textTracks.removeEventListener("change",restoreTrackMode)}))}overrideNative_(type,override){if(override!==this["featuresNative".concat(type,"Tracks")])return;const lowerCaseType=type.toLowerCase();this["".concat(lowerCaseType,"TracksListeners_")]&&Object.keys(this["".concat(lowerCaseType,"TracksListeners_")]).forEach((eventName=>{this.el()["".concat(lowerCaseType,"Tracks")].removeEventListener(eventName,this["".concat(lowerCaseType,"TracksListeners_")][eventName])})),this["featuresNative".concat(type,"Tracks")]=!override,this["".concat(lowerCaseType,"TracksListeners_")]=null,this.proxyNativeTracksForType_(lowerCaseType)}overrideNativeAudioTracks(override){this.overrideNative_("Audio",override)}overrideNativeVideoTracks(override){this.overrideNative_("Video",override)}proxyNativeTracksForType_(name){const props=NORMAL[name],elTracks=this.el()[props.getterName],techTracks=this[props.getterName]();if(!this["featuresNative".concat(props.capitalName,"Tracks")]||!elTracks||!elTracks.addEventListener)return;const listeners={change:e=>{const event={type:"change",target:techTracks,currentTarget:techTracks,srcElement:techTracks};techTracks.trigger(event),"text"===name&&this[REMOTE.remoteText.getterName]().trigger(event)},addtrack(e){techTracks.addTrack(e.track)},removetrack(e){techTracks.removeTrack(e.track)}},removeOldTracks=function(){const removeTracks=[];for(let i=0;i<techTracks.length;i++){let found=!1;for(let j=0;j<elTracks.length;j++)if(elTracks[j]===techTracks[i]){found=!0;break}found||removeTracks.push(techTracks[i])}for(;removeTracks.length;)techTracks.removeTrack(removeTracks.shift())};this[props.getterName+"Listeners_"]=listeners,Object.keys(listeners).forEach((eventName=>{const listener=listeners[eventName];elTracks.addEventListener(eventName,listener),this.on("dispose",(e=>elTracks.removeEventListener(eventName,listener)))})),this.on("loadstart",removeOldTracks),this.on("dispose",(e=>this.off("loadstart",removeOldTracks)))}proxyNativeTracks_(){NORMAL.names.forEach((name=>{this.proxyNativeTracksForType_(name)}))}createEl(){let el=this.options_.tag;if(!el||!this.options_.playerElIngest&&!this.movingMediaElementInDOM){if(el){const clone=el.cloneNode(!0);el.parentNode&&el.parentNode.insertBefore(clone,el),Html5.disposeMediaElement(el),el=clone}else{el=document.createElement("video");const attributes=merge$2({},this.options_.tag&&getAttributes(this.options_.tag));TOUCH_ENABLED&&!0===this.options_.nativeControlsForTouch||delete attributes.controls,setAttributes(el,Object.assign(attributes,{id:this.options_.techId,class:"vjs-tech"}))}el.playerId=this.options_.playerId}void 0!==this.options_.preload&&setAttribute(el,"preload",this.options_.preload),void 0!==this.options_.disablePictureInPicture&&(el.disablePictureInPicture=this.options_.disablePictureInPicture);const settingsAttrs=["loop","muted","playsinline","autoplay"];for(let i=0;i<settingsAttrs.length;i++){const attr=settingsAttrs[i],value=this.options_[attr];void 0!==value&&(value?setAttribute(el,attr,attr):removeAttribute(el,attr),el[attr]=value)}return el}handleLateInit_(el){if(0===el.networkState||3===el.networkState)return;if(0===el.readyState){let loadstartFired=!1;const setLoadstartFired=function(){loadstartFired=!0};this.on("loadstart",setLoadstartFired);const triggerLoadstart=function(){loadstartFired||this.trigger("loadstart")};return this.on("loadedmetadata",triggerLoadstart),void this.ready((function(){this.off("loadstart",setLoadstartFired),this.off("loadedmetadata",triggerLoadstart),loadstartFired||this.trigger("loadstart")}))}const eventsToTrigger=["loadstart"];eventsToTrigger.push("loadedmetadata"),el.readyState>=2&&eventsToTrigger.push("loadeddata"),el.readyState>=3&&eventsToTrigger.push("canplay"),el.readyState>=4&&eventsToTrigger.push("canplaythrough"),this.ready((function(){eventsToTrigger.forEach((function(type){this.trigger(type)}),this)}))}setScrubbing(isScrubbing){this.isScrubbing_=isScrubbing}scrubbing(){return this.isScrubbing_}setCurrentTime(seconds){try{this.isScrubbing_&&this.el_.fastSeek&&IS_ANY_SAFARI?this.el_.fastSeek(seconds):this.el_.currentTime=seconds}catch(e){log$1(e,"Video is not ready. (Video.js)")}}duration(){if(this.el_.duration===1/0&&IS_ANDROID&&IS_CHROME&&0===this.el_.currentTime){const checkProgress=()=>{this.el_.currentTime>0&&(this.el_.duration===1/0&&this.trigger("durationchange"),this.off("timeupdate",checkProgress))};return this.on("timeupdate",checkProgress),NaN}return this.el_.duration||NaN}width(){return this.el_.offsetWidth}height(){return this.el_.offsetHeight}proxyWebkitFullscreen_(){if(!("webkitDisplayingFullscreen"in this.el_))return;const endFn=function(){this.trigger("fullscreenchange",{isFullscreen:!1}),this.el_.controls&&!this.options_.nativeControlsForTouch&&this.controls()&&(this.el_.controls=!1)},beginFn=function(){"webkitPresentationMode"in this.el_&&"picture-in-picture"!==this.el_.webkitPresentationMode&&(this.one("webkitendfullscreen",endFn),this.trigger("fullscreenchange",{isFullscreen:!0,nativeIOSFullscreen:!0}))};this.on("webkitbeginfullscreen",beginFn),this.on("dispose",(()=>{this.off("webkitbeginfullscreen",beginFn),this.off("webkitendfullscreen",endFn)}))}supportsFullScreen(){return"function"==typeof this.el_.webkitEnterFullScreen}enterFullScreen(){const video=this.el_;if(video.paused&&video.networkState<=video.HAVE_METADATA)silencePromise(this.el_.play()),this.setTimeout((function(){video.pause();try{video.webkitEnterFullScreen()}catch(e){this.trigger("fullscreenerror",e)}}),0);else try{video.webkitEnterFullScreen()}catch(e){this.trigger("fullscreenerror",e)}}exitFullScreen(){this.el_.webkitDisplayingFullscreen?this.el_.webkitExitFullScreen():this.trigger("fullscreenerror",new Error("The video is not fullscreen"))}requestPictureInPicture(){return this.el_.requestPictureInPicture()}requestVideoFrameCallback(cb){return this.featuresVideoFrameCallback&&!this.el_.webkitKeys?this.el_.requestVideoFrameCallback(cb):super.requestVideoFrameCallback(cb)}cancelVideoFrameCallback(id){this.featuresVideoFrameCallback&&!this.el_.webkitKeys?this.el_.cancelVideoFrameCallback(id):super.cancelVideoFrameCallback(id)}src(src){if(void 0===src)return this.el_.src;this.setSrc(src)}reset(){Html5.resetMediaElement(this.el_)}currentSrc(){return this.currentSource_?this.currentSource_.src:this.el_.currentSrc}setControls(val){this.el_.controls=!!val}addTextTrack(kind,label,language){return this.featuresNativeTextTracks?this.el_.addTextTrack(kind,label,language):super.addTextTrack(kind,label,language)}createRemoteTextTrack(options){if(!this.featuresNativeTextTracks)return super.createRemoteTextTrack(options);const htmlTrackElement=document.createElement("track");return options.kind&&(htmlTrackElement.kind=options.kind),options.label&&(htmlTrackElement.label=options.label),(options.language||options.srclang)&&(htmlTrackElement.srclang=options.language||options.srclang),options.default&&(htmlTrackElement.default=options.default),options.id&&(htmlTrackElement.id=options.id),options.src&&(htmlTrackElement.src=options.src),htmlTrackElement}addRemoteTextTrack(options,manualCleanup){const htmlTrackElement=super.addRemoteTextTrack(options,manualCleanup);return this.featuresNativeTextTracks&&this.el().appendChild(htmlTrackElement),htmlTrackElement}removeRemoteTextTrack(track){if(super.removeRemoteTextTrack(track),this.featuresNativeTextTracks){const tracks=this.$$("track");let i=tracks.length;for(;i--;)track!==tracks[i]&&track!==tracks[i].track||this.el().removeChild(tracks[i])}}getVideoPlaybackQuality(){if("function"==typeof this.el().getVideoPlaybackQuality)return this.el().getVideoPlaybackQuality();const videoPlaybackQuality={};return void 0!==this.el().webkitDroppedFrameCount&&void 0!==this.el().webkitDecodedFrameCount&&(videoPlaybackQuality.droppedVideoFrames=this.el().webkitDroppedFrameCount,videoPlaybackQuality.totalVideoFrames=this.el().webkitDecodedFrameCount),window.performance&&(videoPlaybackQuality.creationTime=window.performance.now()),videoPlaybackQuality}}defineLazyProperty(Html5,"TEST_VID",(function(){if(!isReal())return;const video=document.createElement("video"),track=document.createElement("track");return track.kind="captions",track.srclang="en",track.label="English",video.appendChild(track),video})),Html5.isSupported=function(){try{Html5.TEST_VID.volume=.5}catch(e){return!1}return!(!Html5.TEST_VID||!Html5.TEST_VID.canPlayType)},Html5.canPlayType=function(type){return Html5.TEST_VID.canPlayType(type)},Html5.canPlaySource=function(srcObj,options){return Html5.canPlayType(srcObj.type)},Html5.canControlVolume=function(){try{const volume=Html5.TEST_VID.volume;Html5.TEST_VID.volume=volume/2+.1;const canControl=volume!==Html5.TEST_VID.volume;return canControl&&IS_IOS?(window.setTimeout((()=>{Html5&&Html5.prototype&&(Html5.prototype.featuresVolumeControl=volume!==Html5.TEST_VID.volume)})),!1):canControl}catch(e){return!1}},Html5.canMuteVolume=function(){try{const muted=Html5.TEST_VID.muted;return Html5.TEST_VID.muted=!muted,Html5.TEST_VID.muted?setAttribute(Html5.TEST_VID,"muted","muted"):removeAttribute(Html5.TEST_VID,"muted"),muted!==Html5.TEST_VID.muted}catch(e){return!1}},Html5.canControlPlaybackRate=function(){if(IS_ANDROID&&IS_CHROME&&CHROME_VERSION<58)return!1;try{const playbackRate=Html5.TEST_VID.playbackRate;return Html5.TEST_VID.playbackRate=playbackRate/2+.1,playbackRate!==Html5.TEST_VID.playbackRate}catch(e){return!1}},Html5.canOverrideAttributes=function(){try{const noop=()=>{};Object.defineProperty(document.createElement("video"),"src",{get:noop,set:noop}),Object.defineProperty(document.createElement("audio"),"src",{get:noop,set:noop}),Object.defineProperty(document.createElement("video"),"innerHTML",{get:noop,set:noop}),Object.defineProperty(document.createElement("audio"),"innerHTML",{get:noop,set:noop})}catch(e){return!1}return!0},Html5.supportsNativeTextTracks=function(){return IS_ANY_SAFARI||IS_IOS&&IS_CHROME},Html5.supportsNativeVideoTracks=function(){return!(!Html5.TEST_VID||!Html5.TEST_VID.videoTracks)},Html5.supportsNativeAudioTracks=function(){return!(!Html5.TEST_VID||!Html5.TEST_VID.audioTracks)},Html5.Events=["loadstart","suspend","abort","error","emptied","stalled","loadedmetadata","loadeddata","canplay","canplaythrough","playing","waiting","seeking","seeked","ended","durationchange","timeupdate","progress","play","pause","ratechange","resize","volumechange"],[["featuresMuteControl","canMuteVolume"],["featuresPlaybackRate","canControlPlaybackRate"],["featuresSourceset","canOverrideAttributes"],["featuresNativeTextTracks","supportsNativeTextTracks"],["featuresNativeVideoTracks","supportsNativeVideoTracks"],["featuresNativeAudioTracks","supportsNativeAudioTracks"]].forEach((function(_ref5){let[key,fn]=_ref5;defineLazyProperty(Html5.prototype,key,(()=>Html5[fn]()),!0)})),Html5.prototype.featuresVolumeControl=Html5.canControlVolume(),Html5.prototype.movingMediaElementInDOM=!IS_IOS,Html5.prototype.featuresFullscreenResize=!0,Html5.prototype.featuresProgressEvents=!0,Html5.prototype.featuresTimeupdateEvents=!0,Html5.prototype.featuresVideoFrameCallback=!(!Html5.TEST_VID||!Html5.TEST_VID.requestVideoFrameCallback),Html5.disposeMediaElement=function(el){if(el){for(el.parentNode&&el.parentNode.removeChild(el);el.hasChildNodes();)el.removeChild(el.firstChild);el.removeAttribute("src"),"function"==typeof el.load&&function(){try{el.load()}catch(e){}}()}},Html5.resetMediaElement=function(el){if(!el)return;const sources=el.querySelectorAll("source");let i=sources.length;for(;i--;)el.removeChild(sources[i]);el.removeAttribute("src"),"function"==typeof el.load&&function(){try{el.load()}catch(e){}}()},["muted","defaultMuted","autoplay","controls","loop","playsinline"].forEach((function(prop){Html5.prototype[prop]=function(){return this.el_[prop]||this.el_.hasAttribute(prop)}})),["muted","defaultMuted","autoplay","loop","playsinline"].forEach((function(prop){Html5.prototype["set"+toTitleCase$1(prop)]=function(v){this.el_[prop]=v,v?this.el_.setAttribute(prop,prop):this.el_.removeAttribute(prop)}})),["paused","currentTime","buffered","volume","poster","preload","error","seeking","seekable","ended","playbackRate","defaultPlaybackRate","disablePictureInPicture","played","networkState","readyState","videoWidth","videoHeight","crossOrigin"].forEach((function(prop){Html5.prototype[prop]=function(){return this.el_[prop]}})),["volume","src","poster","preload","playbackRate","defaultPlaybackRate","disablePictureInPicture","crossOrigin"].forEach((function(prop){Html5.prototype["set"+toTitleCase$1(prop)]=function(v){this.el_[prop]=v}})),["pause","load","play"].forEach((function(prop){Html5.prototype[prop]=function(){return this.el_[prop]()}})),Tech.withSourceHandlers(Html5),Html5.nativeSourceHandler={},Html5.nativeSourceHandler.canPlayType=function(type){try{return Html5.TEST_VID.canPlayType(type)}catch(e){return""}},Html5.nativeSourceHandler.canHandleSource=function(source,options){if(source.type)return Html5.nativeSourceHandler.canPlayType(source.type);if(source.src){const ext=getFileExtension(source.src);return Html5.nativeSourceHandler.canPlayType("video/".concat(ext))}return""},Html5.nativeSourceHandler.handleSource=function(source,tech,options){tech.setSrc(source.src)},Html5.nativeSourceHandler.dispose=function(){},Html5.registerSourceHandler(Html5.nativeSourceHandler),Tech.registerTech("Html5",Html5);const TECH_EVENTS_RETRIGGER=["progress","abort","suspend","emptied","stalled","loadedmetadata","loadeddata","timeupdate","resize","volumechange","texttrackchange"],TECH_EVENTS_QUEUE={canplay:"CanPlay",canplaythrough:"CanPlayThrough",playing:"Playing",seeked:"Seeked"},BREAKPOINT_ORDER=["tiny","xsmall","small","medium","large","xlarge","huge"],BREAKPOINT_CLASSES={};BREAKPOINT_ORDER.forEach((k=>{const v="x"===k.charAt(0)?"x-".concat(k.substring(1)):k;BREAKPOINT_CLASSES[k]="vjs-layout-".concat(v)}));const DEFAULT_BREAKPOINTS={tiny:210,xsmall:320,small:425,medium:768,large:1440,xlarge:2560,huge:1/0};class Player extends Component$1{constructor(tag,options,ready){if(tag.id=tag.id||options.id||"vjs_video_".concat(newGUID()),(options=Object.assign(Player.getTagSettings(tag),options)).initChildren=!1,options.createEl=!1,options.evented=!1,options.reportTouchActivity=!1,!options.language){const closest=tag.closest("[lang]");closest&&(options.language=closest.getAttribute("lang"))}if(super(null,options,ready),this.boundDocumentFullscreenChange_=e=>this.documentFullscreenChange_(e),this.boundFullWindowOnEscKey_=e=>this.fullWindowOnEscKey(e),this.boundUpdateStyleEl_=e=>this.updateStyleEl_(e),this.boundApplyInitTime_=e=>this.applyInitTime_(e),this.boundUpdateCurrentBreakpoint_=e=>this.updateCurrentBreakpoint_(e),this.boundHandleTechClick_=e=>this.handleTechClick_(e),this.boundHandleTechDoubleClick_=e=>this.handleTechDoubleClick_(e),this.boundHandleTechTouchStart_=e=>this.handleTechTouchStart_(e),this.boundHandleTechTouchMove_=e=>this.handleTechTouchMove_(e),this.boundHandleTechTouchEnd_=e=>this.handleTechTouchEnd_(e),this.boundHandleTechTap_=e=>this.handleTechTap_(e),this.isFullscreen_=!1,this.log=createLogger(this.id_),this.fsApi_=FullscreenApi,this.isPosterFromTech_=!1,this.queuedCallbacks_=[],this.isReady_=!1,this.hasStarted_=!1,this.userActive_=!1,this.debugEnabled_=!1,this.audioOnlyMode_=!1,this.audioPosterMode_=!1,this.audioOnlyCache_={playerHeight:null,hiddenChildren:[]},!this.options_||!this.options_.techOrder||!this.options_.techOrder.length)throw new Error("No techOrder specified. Did you overwrite videojs.options instead of just changing the properties you want to override?");if(this.tag=tag,this.tagAttributes=tag&&getAttributes(tag),this.language(this.options_.language),options.languages){const languagesToLower={};Object.getOwnPropertyNames(options.languages).forEach((function(name){languagesToLower[name.toLowerCase()]=options.languages[name]})),this.languages_=languagesToLower}else this.languages_=Player.prototype.options_.languages;this.resetCache_(),this.poster_=options.poster||"",this.controls_=!!options.controls,tag.controls=!1,tag.removeAttribute("controls"),this.changingSrc_=!1,this.playCallbacks_=[],this.playTerminatedQueue_=[],tag.hasAttribute("autoplay")?this.autoplay(!0):this.autoplay(this.options_.autoplay),options.plugins&&Object.keys(options.plugins).forEach((name=>{if("function"!=typeof this[name])throw new Error('plugin "'.concat(name,'" does not exist'))})),this.scrubbing_=!1,this.el_=this.createEl(),evented(this,{eventBusKey:"el_"}),this.fsApi_.requestFullscreen&&(on(document,this.fsApi_.fullscreenchange,this.boundDocumentFullscreenChange_),this.on(this.fsApi_.fullscreenchange,this.boundDocumentFullscreenChange_)),this.fluid_&&this.on(["playerreset","resize"],this.boundUpdateStyleEl_);const playerOptionsCopy=merge$2(this.options_);options.plugins&&Object.keys(options.plugins).forEach((name=>{this[name](options.plugins[name])})),options.debug&&this.debug(!0),this.options_.playerOptions=playerOptionsCopy,this.middleware_=[],this.playbackRates(options.playbackRates),this.initChildren(),this.isAudio("audio"===tag.nodeName.toLowerCase()),this.controls()?this.addClass("vjs-controls-enabled"):this.addClass("vjs-controls-disabled"),this.el_.setAttribute("role","region"),this.isAudio()?this.el_.setAttribute("aria-label",this.localize("Audio Player")):this.el_.setAttribute("aria-label",this.localize("Video Player")),this.isAudio()&&this.addClass("vjs-audio"),TOUCH_ENABLED&&this.addClass("vjs-touch-enabled"),IS_IOS||this.addClass("vjs-workinghover"),Player.players[this.id_]=this;const majorVersion="8.3.0".split(".")[0];this.addClass("vjs-v".concat(majorVersion)),this.userActive(!0),this.reportUserActivity(),this.one("play",(e=>this.listenForUserActivity_(e))),this.on("keydown",(e=>this.handleKeyDown(e))),this.on("languagechange",(e=>this.handleLanguagechange(e))),this.breakpoints(this.options_.breakpoints),this.responsive(this.options_.responsive),this.on("ready",(()=>{this.audioPosterMode(this.options_.audioPosterMode),this.audioOnlyMode(this.options_.audioOnlyMode)}))}dispose(){this.trigger("dispose"),this.off("dispose"),off(document,this.fsApi_.fullscreenchange,this.boundDocumentFullscreenChange_),off(document,"keydown",this.boundFullWindowOnEscKey_),this.styleEl_&&this.styleEl_.parentNode&&(this.styleEl_.parentNode.removeChild(this.styleEl_),this.styleEl_=null),Player.players[this.id_]=null,this.tag&&this.tag.player&&(this.tag.player=null),this.el_&&this.el_.player&&(this.el_.player=null),this.tech_&&(this.tech_.dispose(),this.isPosterFromTech_=!1,this.poster_=""),this.playerElIngest_&&(this.playerElIngest_=null),this.tag&&(this.tag=null),middlewareInstances[this.id()]=null,ALL.names.forEach((name=>{const list=this[ALL[name].getterName]();list&&list.off&&list.off()})),super.dispose({restoreEl:this.options_.restoreEl})}createEl(){let el,tag=this.tag,playerElIngest=this.playerElIngest_=tag.parentNode&&tag.parentNode.hasAttribute&&tag.parentNode.hasAttribute("data-vjs-player");const divEmbed="video-js"===this.tag.tagName.toLowerCase();playerElIngest?el=this.el_=tag.parentNode:divEmbed||(el=this.el_=super.createEl("div"));const attrs=getAttributes(tag);if(divEmbed){for(el=this.el_=tag,tag=this.tag=document.createElement("video");el.children.length;)tag.appendChild(el.firstChild);hasClass(el,"video-js")||addClass(el,"video-js"),el.appendChild(tag),playerElIngest=this.playerElIngest_=el,Object.keys(el).forEach((k=>{try{tag[k]=el[k]}catch(e){}}))}if(tag.setAttribute("tabindex","-1"),attrs.tabindex="-1",IS_CHROME&&IS_WINDOWS&&(tag.setAttribute("role","application"),attrs.role="application"),tag.removeAttribute("width"),tag.removeAttribute("height"),"width"in attrs&&delete attrs.width,"height"in attrs&&delete attrs.height,Object.getOwnPropertyNames(attrs).forEach((function(attr){divEmbed&&"class"===attr||el.setAttribute(attr,attrs[attr]),divEmbed&&tag.setAttribute(attr,attrs[attr])})),tag.playerId=tag.id,tag.id+="_html5_api",tag.className="vjs-tech",tag.player=el.player=this,this.addClass("vjs-paused"),!0!==window.VIDEOJS_NO_DYNAMIC_STYLE){this.styleEl_=createStyleElement("vjs-styles-dimensions");const defaultsStyleEl=$(".vjs-styles-defaults"),head=$("head");head.insertBefore(this.styleEl_,defaultsStyleEl?defaultsStyleEl.nextSibling:head.firstChild)}this.fill_=!1,this.fluid_=!1,this.width(this.options_.width),this.height(this.options_.height),this.fill(this.options_.fill),this.fluid(this.options_.fluid),this.aspectRatio(this.options_.aspectRatio),this.crossOrigin(this.options_.crossOrigin||this.options_.crossorigin);const links=tag.getElementsByTagName("a");for(let i=0;i<links.length;i++){const linkEl=links.item(i);addClass(linkEl,"vjs-hidden"),linkEl.setAttribute("hidden","hidden")}return tag.initNetworkState_=tag.networkState,tag.parentNode&&!playerElIngest&&tag.parentNode.insertBefore(el,tag),prependTo(tag,el),this.children_.unshift(tag),this.el_.setAttribute("lang",this.language_),this.el_.setAttribute("translate","no"),this.el_=el,el}crossOrigin(value){if(void 0===value)return this.techGet_("crossOrigin");null===value||"anonymous"===value||"use-credentials"===value?(this.techCall_("setCrossOrigin",value),this.posterImage&&this.posterImage.crossOrigin(value)):log$1.warn('crossOrigin must be null,  "anonymous" or "use-credentials", given "'.concat(value,'"'))}width(value){return this.dimension("width",value)}height(value){return this.dimension("height",value)}dimension(dimension,value){const privDimension=dimension+"_";if(void 0===value)return this[privDimension]||0;if(""===value||"auto"===value)return this[privDimension]=void 0,void this.updateStyleEl_();const parsedVal=parseFloat(value);isNaN(parsedVal)?log$1.error('Improper value "'.concat(value,'" supplied for for ').concat(dimension)):(this[privDimension]=parsedVal,this.updateStyleEl_())}fluid(bool){if(void 0===bool)return!!this.fluid_;var target,callback;this.fluid_=!!bool,isEvented(this)&&this.off(["playerreset","resize"],this.boundUpdateStyleEl_),bool?(this.addClass("vjs-fluid"),this.fill(!1),callback=()=>{this.on(["playerreset","resize"],this.boundUpdateStyleEl_)},isEvented(target=this)?callback():(target.eventedCallbacks||(target.eventedCallbacks=[]),target.eventedCallbacks.push(callback))):this.removeClass("vjs-fluid"),this.updateStyleEl_()}fill(bool){if(void 0===bool)return!!this.fill_;this.fill_=!!bool,bool?(this.addClass("vjs-fill"),this.fluid(!1)):this.removeClass("vjs-fill")}aspectRatio(ratio){if(void 0===ratio)return this.aspectRatio_;if(!/^\d+\:\d+$/.test(ratio))throw new Error("Improper value supplied for aspect ratio. The format should be width:height, for example 16:9.");this.aspectRatio_=ratio,this.fluid(!0),this.updateStyleEl_()}updateStyleEl_(){if(!0===window.VIDEOJS_NO_DYNAMIC_STYLE){const width="number"==typeof this.width_?this.width_:this.options_.width,height="number"==typeof this.height_?this.height_:this.options_.height,techEl=this.tech_&&this.tech_.el();return void(techEl&&(width>=0&&(techEl.width=width),height>=0&&(techEl.height=height)))}let width,height,aspectRatio,idClass;aspectRatio=void 0!==this.aspectRatio_&&"auto"!==this.aspectRatio_?this.aspectRatio_:this.videoWidth()>0?this.videoWidth()+":"+this.videoHeight():"16:9";const ratioParts=aspectRatio.split(":"),ratioMultiplier=ratioParts[1]/ratioParts[0];width=void 0!==this.width_?this.width_:void 0!==this.height_?this.height_/ratioMultiplier:this.videoWidth()||300,height=void 0!==this.height_?this.height_:width*ratioMultiplier,idClass=/^[^a-zA-Z]/.test(this.id())?"dimensions-"+this.id():this.id()+"-dimensions",this.addClass(idClass),setTextContent(this.styleEl_,"\n      .".concat(idClass," {\n        width: ").concat(width,"px;\n        height: ").concat(height,"px;\n      }\n\n      .").concat(idClass,".vjs-fluid:not(.vjs-audio-only-mode) {\n        padding-top: ").concat(100*ratioMultiplier,"%;\n      }\n    "))}loadTech_(techName,source){this.tech_&&this.unloadTech_();const titleTechName=toTitleCase$1(techName),camelTechName=techName.charAt(0).toLowerCase()+techName.slice(1);"Html5"!==titleTechName&&this.tag&&(Tech.getTech("Html5").disposeMediaElement(this.tag),this.tag.player=null,this.tag=null),this.techName_=titleTechName,this.isReady_=!1;let autoplay=this.autoplay();("string"==typeof this.autoplay()||!0===this.autoplay()&&this.options_.normalizeAutoplay)&&(autoplay=!1);const techOptions={source:source,autoplay:autoplay,nativeControlsForTouch:this.options_.nativeControlsForTouch,playerId:this.id(),techId:"".concat(this.id(),"_").concat(camelTechName,"_api"),playsinline:this.options_.playsinline,preload:this.options_.preload,loop:this.options_.loop,disablePictureInPicture:this.options_.disablePictureInPicture,muted:this.options_.muted,poster:this.poster(),language:this.language(),playerElIngest:this.playerElIngest_||!1,"vtt.js":this.options_["vtt.js"],canOverridePoster:!!this.options_.techCanOverridePoster,enableSourceset:this.options_.enableSourceset};ALL.names.forEach((name=>{const props=ALL[name];techOptions[props.getterName]=this[props.privateName]})),Object.assign(techOptions,this.options_[titleTechName]),Object.assign(techOptions,this.options_[camelTechName]),Object.assign(techOptions,this.options_[techName.toLowerCase()]),this.tag&&(techOptions.tag=this.tag),source&&source.src===this.cache_.src&&this.cache_.currentTime>0&&(techOptions.startTime=this.cache_.currentTime);const TechClass=Tech.getTech(techName);if(!TechClass)throw new Error("No Tech named '".concat(titleTechName,"' exists! '").concat(titleTechName,"' should be registered using videojs.registerTech()'"));this.tech_=new TechClass(techOptions),this.tech_.ready(bind_(this,this.handleTechReady_),!0),textTrackConverter_jsonToTextTracks(this.textTracksJson_||[],this.tech_),TECH_EVENTS_RETRIGGER.forEach((event=>{this.on(this.tech_,event,(e=>this["handleTech".concat(toTitleCase$1(event),"_")](e)))})),Object.keys(TECH_EVENTS_QUEUE).forEach((event=>{this.on(this.tech_,event,(eventObj=>{0===this.tech_.playbackRate()&&this.tech_.seeking()?this.queuedCallbacks_.push({callback:this["handleTech".concat(TECH_EVENTS_QUEUE[event],"_")].bind(this),event:eventObj}):this["handleTech".concat(TECH_EVENTS_QUEUE[event],"_")](eventObj)}))})),this.on(this.tech_,"loadstart",(e=>this.handleTechLoadStart_(e))),this.on(this.tech_,"sourceset",(e=>this.handleTechSourceset_(e))),this.on(this.tech_,"waiting",(e=>this.handleTechWaiting_(e))),this.on(this.tech_,"ended",(e=>this.handleTechEnded_(e))),this.on(this.tech_,"seeking",(e=>this.handleTechSeeking_(e))),this.on(this.tech_,"play",(e=>this.handleTechPlay_(e))),this.on(this.tech_,"pause",(e=>this.handleTechPause_(e))),this.on(this.tech_,"durationchange",(e=>this.handleTechDurationChange_(e))),this.on(this.tech_,"fullscreenchange",((e,data)=>this.handleTechFullscreenChange_(e,data))),this.on(this.tech_,"fullscreenerror",((e,err)=>this.handleTechFullscreenError_(e,err))),this.on(this.tech_,"enterpictureinpicture",(e=>this.handleTechEnterPictureInPicture_(e))),this.on(this.tech_,"leavepictureinpicture",(e=>this.handleTechLeavePictureInPicture_(e))),this.on(this.tech_,"error",(e=>this.handleTechError_(e))),this.on(this.tech_,"posterchange",(e=>this.handleTechPosterChange_(e))),this.on(this.tech_,"textdata",(e=>this.handleTechTextData_(e))),this.on(this.tech_,"ratechange",(e=>this.handleTechRateChange_(e))),this.on(this.tech_,"loadedmetadata",this.boundUpdateStyleEl_),this.usingNativeControls(this.techGet_("controls")),this.controls()&&!this.usingNativeControls()&&this.addTechControlsListeners_(),this.tech_.el().parentNode===this.el()||"Html5"===titleTechName&&this.tag||prependTo(this.tech_.el(),this.el()),this.tag&&(this.tag.player=null,this.tag=null)}unloadTech_(){ALL.names.forEach((name=>{const props=ALL[name];this[props.privateName]=this[props.getterName]()})),this.textTracksJson_=textTrackConverter_textTracksToJson(this.tech_),this.isReady_=!1,this.tech_.dispose(),this.tech_=!1,this.isPosterFromTech_&&(this.poster_="",this.trigger("posterchange")),this.isPosterFromTech_=!1}tech(safety){return void 0===safety&&log$1.warn("Using the tech directly can be dangerous. I hope you know what you're doing.\nSee https://github.com/videojs/video.js/issues/2617 for more info.\n"),this.tech_}addTechControlsListeners_(){this.removeTechControlsListeners_(),this.on(this.tech_,"click",this.boundHandleTechClick_),this.on(this.tech_,"dblclick",this.boundHandleTechDoubleClick_),this.on(this.tech_,"touchstart",this.boundHandleTechTouchStart_),this.on(this.tech_,"touchmove",this.boundHandleTechTouchMove_),this.on(this.tech_,"touchend",this.boundHandleTechTouchEnd_),this.on(this.tech_,"tap",this.boundHandleTechTap_)}removeTechControlsListeners_(){this.off(this.tech_,"tap",this.boundHandleTechTap_),this.off(this.tech_,"touchstart",this.boundHandleTechTouchStart_),this.off(this.tech_,"touchmove",this.boundHandleTechTouchMove_),this.off(this.tech_,"touchend",this.boundHandleTechTouchEnd_),this.off(this.tech_,"click",this.boundHandleTechClick_),this.off(this.tech_,"dblclick",this.boundHandleTechDoubleClick_)}handleTechReady_(){this.triggerReady(),this.cache_.volume&&this.techCall_("setVolume",this.cache_.volume),this.handleTechPosterChange_(),this.handleTechDurationChange_()}handleTechLoadStart_(){this.removeClass("vjs-ended","vjs-seeking"),this.error(null),this.handleTechDurationChange_(),this.paused()?(this.hasStarted(!1),this.trigger("loadstart")):this.trigger("loadstart"),this.manualAutoplay_(!0===this.autoplay()&&this.options_.normalizeAutoplay?"play":this.autoplay())}manualAutoplay_(type){if(!this.tech_||"string"!=typeof type)return;const resolveMuted=()=>{const previouslyMuted=this.muted();this.muted(!0);const restoreMuted=()=>{this.muted(previouslyMuted)};this.playTerminatedQueue_.push(restoreMuted);const mutedPromise=this.play();if(isPromise(mutedPromise))return mutedPromise.catch((err=>{throw restoreMuted(),new Error("Rejection at manualAutoplay. Restoring muted value. ".concat(err||""))}))};let promise;return"any"!==type||this.muted()?promise="muted"!==type||this.muted()?this.play():resolveMuted():(promise=this.play(),isPromise(promise)&&(promise=promise.catch(resolveMuted))),isPromise(promise)?promise.then((()=>{this.trigger({type:"autoplay-success",autoplay:type})})).catch((()=>{this.trigger({type:"autoplay-failure",autoplay:type})})):void 0}updateSourceCaches_(){let srcObj=arguments.length>0&&void 0!==arguments[0]?arguments[0]:"",src=srcObj,type="";"string"!=typeof src&&(src=srcObj.src,type=srcObj.type),this.cache_.source=this.cache_.source||{},this.cache_.sources=this.cache_.sources||[],src&&!type&&(type=((player,src)=>{if(!src)return"";if(player.cache_.source.src===src&&player.cache_.source.type)return player.cache_.source.type;const matchingSources=player.cache_.sources.filter((s=>s.src===src));if(matchingSources.length)return matchingSources[0].type;const sources=player.$$("source");for(let i=0;i<sources.length;i++){const s=sources[i];if(s.type&&s.src&&s.src===src)return s.type}return getMimetype(src)})(this,src)),this.cache_.source=merge$2({},srcObj,{src:src,type:type});const matchingSources=this.cache_.sources.filter((s=>s.src&&s.src===src)),sourceElSources=[],sourceEls=this.$$("source"),matchingSourceEls=[];for(let i=0;i<sourceEls.length;i++){const sourceObj=getAttributes(sourceEls[i]);sourceElSources.push(sourceObj),sourceObj.src&&sourceObj.src===src&&matchingSourceEls.push(sourceObj.src)}matchingSourceEls.length&&!matchingSources.length?this.cache_.sources=sourceElSources:matchingSources.length||(this.cache_.sources=[this.cache_.source]),this.cache_.src=src}handleTechSourceset_(event){if(!this.changingSrc_){let updateSourceCaches=src=>this.updateSourceCaches_(src);const playerSrc=this.currentSource().src,eventSrc=event.src;playerSrc&&!/^blob:/.test(playerSrc)&&/^blob:/.test(eventSrc)&&(!this.lastSource_||this.lastSource_.tech!==eventSrc&&this.lastSource_.player!==playerSrc)&&(updateSourceCaches=()=>{}),updateSourceCaches(eventSrc),event.src||this.tech_.any(["sourceset","loadstart"],(e=>{if("sourceset"===e.type)return;const techSrc=this.techGet("currentSrc");this.lastSource_.tech=techSrc,this.updateSourceCaches_(techSrc)}))}this.lastSource_={player:this.currentSource().src,tech:event.src},this.trigger({src:event.src,type:"sourceset"})}hasStarted(request){if(void 0===request)return this.hasStarted_;request!==this.hasStarted_&&(this.hasStarted_=request,this.hasStarted_?this.addClass("vjs-has-started"):this.removeClass("vjs-has-started"))}handleTechPlay_(){this.removeClass("vjs-ended","vjs-paused"),this.addClass("vjs-playing"),this.hasStarted(!0),this.trigger("play")}handleTechRateChange_(){this.tech_.playbackRate()>0&&0===this.cache_.lastPlaybackRate&&(this.queuedCallbacks_.forEach((queued=>queued.callback(queued.event))),this.queuedCallbacks_=[]),this.cache_.lastPlaybackRate=this.tech_.playbackRate(),this.trigger("ratechange")}handleTechWaiting_(){this.addClass("vjs-waiting"),this.trigger("waiting");const timeWhenWaiting=this.currentTime(),timeUpdateListener=()=>{timeWhenWaiting!==this.currentTime()&&(this.removeClass("vjs-waiting"),this.off("timeupdate",timeUpdateListener))};this.on("timeupdate",timeUpdateListener)}handleTechCanPlay_(){this.removeClass("vjs-waiting"),this.trigger("canplay")}handleTechCanPlayThrough_(){this.removeClass("vjs-waiting"),this.trigger("canplaythrough")}handleTechPlaying_(){this.removeClass("vjs-waiting"),this.trigger("playing")}handleTechSeeking_(){this.addClass("vjs-seeking"),this.trigger("seeking")}handleTechSeeked_(){this.removeClass("vjs-seeking","vjs-ended"),this.trigger("seeked")}handleTechPause_(){this.removeClass("vjs-playing"),this.addClass("vjs-paused"),this.trigger("pause")}handleTechEnded_(){this.addClass("vjs-ended"),this.removeClass("vjs-waiting"),this.options_.loop?(this.currentTime(0),this.play()):this.paused()||this.pause(),this.trigger("ended")}handleTechDurationChange_(){this.duration(this.techGet_("duration"))}handleTechClick_(event){this.controls_&&(void 0!==this.options_&&void 0!==this.options_.userActions&&void 0!==this.options_.userActions.click&&!1===this.options_.userActions.click||(void 0!==this.options_&&void 0!==this.options_.userActions&&"function"==typeof this.options_.userActions.click?this.options_.userActions.click.call(this,event):this.paused()?silencePromise(this.play()):this.pause()))}handleTechDoubleClick_(event){if(!this.controls_)return;Array.prototype.some.call(this.$$(".vjs-control-bar, .vjs-modal-dialog"),(el=>el.contains(event.target)))||void 0!==this.options_&&void 0!==this.options_.userActions&&void 0!==this.options_.userActions.doubleClick&&!1===this.options_.userActions.doubleClick||(void 0!==this.options_&&void 0!==this.options_.userActions&&"function"==typeof this.options_.userActions.doubleClick?this.options_.userActions.doubleClick.call(this,event):this.isFullscreen()?this.exitFullscreen():this.requestFullscreen())}handleTechTap_(){this.userActive(!this.userActive())}handleTechTouchStart_(){this.userWasActive=this.userActive()}handleTechTouchMove_(){this.userWasActive&&this.reportUserActivity()}handleTechTouchEnd_(event){event.cancelable&&event.preventDefault()}toggleFullscreenClass_(){this.isFullscreen()?this.addClass("vjs-fullscreen"):this.removeClass("vjs-fullscreen")}documentFullscreenChange_(e){const targetPlayer=e.target.player;if(targetPlayer&&targetPlayer!==this)return;const el=this.el();let isFs=document[this.fsApi_.fullscreenElement]===el;!isFs&&el.matches?isFs=el.matches(":"+this.fsApi_.fullscreen):!isFs&&el.msMatchesSelector&&(isFs=el.msMatchesSelector(":"+this.fsApi_.fullscreen)),this.isFullscreen(isFs)}handleTechFullscreenChange_(event,data){data&&(data.nativeIOSFullscreen&&(this.addClass("vjs-ios-native-fs"),this.tech_.one("webkitendfullscreen",(()=>{this.removeClass("vjs-ios-native-fs")}))),this.isFullscreen(data.isFullscreen))}handleTechFullscreenError_(event,err){this.trigger("fullscreenerror",err)}togglePictureInPictureClass_(){this.isInPictureInPicture()?this.addClass("vjs-picture-in-picture"):this.removeClass("vjs-picture-in-picture")}handleTechEnterPictureInPicture_(event){this.isInPictureInPicture(!0)}handleTechLeavePictureInPicture_(event){this.isInPictureInPicture(!1)}handleTechError_(){const error=this.tech_.error();this.error(error)}handleTechTextData_(){let data=null;arguments.length>1&&(data=arguments[1]),this.trigger("textdata",data)}getCache(){return this.cache_}resetCache_(){this.cache_={currentTime:0,initTime:0,inactivityTimeout:this.options_.inactivityTimeout,duration:NaN,lastVolume:1,lastPlaybackRate:this.defaultPlaybackRate(),media:null,src:"",source:{},sources:[],playbackRates:[],volume:1}}techCall_(method,arg){this.ready((function(){if(method in allowedSetters)return function(middleware,tech,method,arg){return tech[method](middleware.reduce(middlewareIterator(method),arg))}(this.middleware_,this.tech_,method,arg);if(method in allowedMediators)return mediate(this.middleware_,this.tech_,method,arg);try{this.tech_&&this.tech_[method](arg)}catch(e){throw log$1(e),e}}),!0)}techGet_(method){if(this.tech_&&this.tech_.isReady_){if(method in allowedGetters)return function(middleware,tech,method){return middleware.reduceRight(middlewareIterator(method),tech[method]())}(this.middleware_,this.tech_,method);if(method in allowedMediators)return mediate(this.middleware_,this.tech_,method);try{return this.tech_[method]()}catch(e){if(void 0===this.tech_[method])throw log$1("Video.js: ".concat(method," method not defined for ").concat(this.techName_," playback technology."),e),e;if("TypeError"===e.name)throw log$1("Video.js: ".concat(method," unavailable on ").concat(this.techName_," playback technology element."),e),this.tech_.isReady_=!1,e;throw log$1(e),e}}}play(){return new Promise((resolve=>{this.play_(resolve)}))}play_(){let callback=arguments.length>0&&void 0!==arguments[0]?arguments[0]:silencePromise;this.playCallbacks_.push(callback);const isSrcReady=Boolean(!this.changingSrc_&&(this.src()||this.currentSrc())),isSafariOrIOS=Boolean(IS_ANY_SAFARI||IS_IOS);if(this.waitToPlay_&&(this.off(["ready","loadstart"],this.waitToPlay_),this.waitToPlay_=null),!this.isReady_||!isSrcReady)return this.waitToPlay_=e=>{this.play_()},this.one(["ready","loadstart"],this.waitToPlay_),void(!isSrcReady&&isSafariOrIOS&&this.load());const val=this.techGet_("play");isSafariOrIOS&&this.hasClass("vjs-ended")&&this.resetProgressBar_(),null===val?this.runPlayTerminatedQueue_():this.runPlayCallbacks_(val)}runPlayTerminatedQueue_(){const queue=this.playTerminatedQueue_.slice(0);this.playTerminatedQueue_=[],queue.forEach((function(q){q()}))}runPlayCallbacks_(val){const callbacks=this.playCallbacks_.slice(0);this.playCallbacks_=[],this.playTerminatedQueue_=[],callbacks.forEach((function(cb){cb(val)}))}pause(){this.techCall_("pause")}paused(){return!1!==this.techGet_("paused")}played(){return this.techGet_("played")||createTimeRanges$1(0,0)}scrubbing(isScrubbing){if(void 0===isScrubbing)return this.scrubbing_;this.scrubbing_=!!isScrubbing,this.techCall_("setScrubbing",this.scrubbing_),isScrubbing?this.addClass("vjs-scrubbing"):this.removeClass("vjs-scrubbing")}currentTime(seconds){return void 0!==seconds?(seconds<0&&(seconds=0),this.isReady_&&!this.changingSrc_&&this.tech_&&this.tech_.isReady_?(this.techCall_("setCurrentTime",seconds),void(this.cache_.initTime=0)):(this.cache_.initTime=seconds,this.off("canplay",this.boundApplyInitTime_),void this.one("canplay",this.boundApplyInitTime_))):(this.cache_.currentTime=this.techGet_("currentTime")||0,this.cache_.currentTime)}applyInitTime_(){this.currentTime(this.cache_.initTime)}duration(seconds){if(void 0===seconds)return void 0!==this.cache_.duration?this.cache_.duration:NaN;(seconds=parseFloat(seconds))<0&&(seconds=1/0),seconds!==this.cache_.duration&&(this.cache_.duration=seconds,seconds===1/0?this.addClass("vjs-live"):this.removeClass("vjs-live"),isNaN(seconds)||this.trigger("durationchange"))}remainingTime(){return this.duration()-this.currentTime()}remainingTimeDisplay(){return Math.floor(this.duration())-Math.floor(this.currentTime())}buffered(){let buffered=this.techGet_("buffered");return buffered&&buffered.length||(buffered=createTimeRanges$1(0,0)),buffered}bufferedPercent(){return bufferedPercent(this.buffered(),this.duration())}bufferedEnd(){const buffered=this.buffered(),duration=this.duration();let end=buffered.end(buffered.length-1);return end>duration&&(end=duration),end}volume(percentAsDecimal){let vol;return void 0!==percentAsDecimal?(vol=Math.max(0,Math.min(1,parseFloat(percentAsDecimal))),this.cache_.volume=vol,this.techCall_("setVolume",vol),void(vol>0&&this.lastVolume_(vol))):(vol=parseFloat(this.techGet_("volume")),isNaN(vol)?1:vol)}muted(muted){if(void 0===muted)return this.techGet_("muted")||!1;this.techCall_("setMuted",muted)}defaultMuted(defaultMuted){return void 0!==defaultMuted?this.techCall_("setDefaultMuted",defaultMuted):this.techGet_("defaultMuted")||!1}lastVolume_(percentAsDecimal){if(void 0===percentAsDecimal||0===percentAsDecimal)return this.cache_.lastVolume;this.cache_.lastVolume=percentAsDecimal}supportsFullScreen(){return this.techGet_("supportsFullScreen")||!1}isFullscreen(isFS){if(void 0!==isFS){const oldValue=this.isFullscreen_;return this.isFullscreen_=Boolean(isFS),this.isFullscreen_!==oldValue&&this.fsApi_.prefixed&&this.trigger("fullscreenchange"),void this.toggleFullscreenClass_()}return this.isFullscreen_}requestFullscreen(fullscreenOptions){this.isInPictureInPicture()&&this.exitPictureInPicture();const self=this;return new Promise(((resolve,reject)=>{function offHandler(){self.off("fullscreenerror",errorHandler),self.off("fullscreenchange",changeHandler)}function changeHandler(){offHandler(),resolve()}function errorHandler(e,err){offHandler(),reject(err)}self.one("fullscreenchange",changeHandler),self.one("fullscreenerror",errorHandler);const promise=self.requestFullscreenHelper_(fullscreenOptions);promise&&(promise.then(offHandler,offHandler),promise.then(resolve,reject))}))}requestFullscreenHelper_(fullscreenOptions){let fsOptions;if(this.fsApi_.prefixed||(fsOptions=this.options_.fullscreen&&this.options_.fullscreen.options||{},void 0!==fullscreenOptions&&(fsOptions=fullscreenOptions)),this.fsApi_.requestFullscreen){const promise=this.el_[this.fsApi_.requestFullscreen](fsOptions);return promise&&promise.then((()=>this.isFullscreen(!0)),(()=>this.isFullscreen(!1))),promise}this.tech_.supportsFullScreen()&&!0==!this.options_.preferFullWindow?this.techCall_("enterFullScreen"):this.enterFullWindow()}exitFullscreen(){const self=this;return new Promise(((resolve,reject)=>{function offHandler(){self.off("fullscreenerror",errorHandler),self.off("fullscreenchange",changeHandler)}function changeHandler(){offHandler(),resolve()}function errorHandler(e,err){offHandler(),reject(err)}self.one("fullscreenchange",changeHandler),self.one("fullscreenerror",errorHandler);const promise=self.exitFullscreenHelper_();promise&&(promise.then(offHandler,offHandler),promise.then(resolve,reject))}))}exitFullscreenHelper_(){if(this.fsApi_.requestFullscreen){const promise=document[this.fsApi_.exitFullscreen]();return promise&&silencePromise(promise.then((()=>this.isFullscreen(!1)))),promise}this.tech_.supportsFullScreen()&&!0==!this.options_.preferFullWindow?this.techCall_("exitFullScreen"):this.exitFullWindow()}enterFullWindow(){this.isFullscreen(!0),this.isFullWindow=!0,this.docOrigOverflow=document.documentElement.style.overflow,on(document,"keydown",this.boundFullWindowOnEscKey_),document.documentElement.style.overflow="hidden",addClass(document.body,"vjs-full-window"),this.trigger("enterFullWindow")}fullWindowOnEscKey(event){keycode.isEventKey(event,"Esc")&&!0===this.isFullscreen()&&(this.isFullWindow?this.exitFullWindow():this.exitFullscreen())}exitFullWindow(){this.isFullscreen(!1),this.isFullWindow=!1,off(document,"keydown",this.boundFullWindowOnEscKey_),document.documentElement.style.overflow=this.docOrigOverflow,removeClass(document.body,"vjs-full-window"),this.trigger("exitFullWindow")}disablePictureInPicture(value){if(void 0===value)return this.techGet_("disablePictureInPicture");this.techCall_("setDisablePictureInPicture",value),this.options_.disablePictureInPicture=value,this.trigger("disablepictureinpicturechanged")}isInPictureInPicture(isPiP){return void 0!==isPiP?(this.isInPictureInPicture_=!!isPiP,void this.togglePictureInPictureClass_()):!!this.isInPictureInPicture_}requestPictureInPicture(){if(this.options_.enableDocumentPictureInPicture&&window.documentPictureInPicture){const pipContainer=document.createElement(this.el().tagName);return pipContainer.classList=this.el().classList,pipContainer.classList.add("vjs-pip-container"),this.posterImage&&pipContainer.appendChild(this.posterImage.el().cloneNode(!0)),this.titleBar&&pipContainer.appendChild(this.titleBar.el().cloneNode(!0)),pipContainer.appendChild(createEl("p",{className:"vjs-pip-text"},{},this.localize("Playing in picture-in-picture"))),window.documentPictureInPicture.requestWindow({initialAspectRatio:this.videoWidth()/this.videoHeight(),copyStyleSheets:!0}).then((pipWindow=>(this.el_.parentNode.insertBefore(pipContainer,this.el_),pipWindow.document.body.append(this.el_),pipWindow.document.body.classList.add("vjs-pip-window"),this.player_.isInPictureInPicture(!0),this.player_.trigger("enterpictureinpicture"),pipWindow.addEventListener("unload",(event=>{const pipVideo=event.target.querySelector(".video-js");pipContainer.replaceWith(pipVideo),this.player_.isInPictureInPicture(!1),this.player_.trigger("leavepictureinpicture")})),pipWindow)))}return"pictureInPictureEnabled"in document&&!1===this.disablePictureInPicture()?this.techGet_("requestPictureInPicture"):Promise.reject("No PiP mode is available")}exitPictureInPicture(){return window.documentPictureInPicture&&window.documentPictureInPicture.window?(window.documentPictureInPicture.window.close(),Promise.resolve()):"pictureInPictureEnabled"in document?document.exitPictureInPicture():void 0}handleKeyDown(event){const{userActions:userActions}=this.options_;if(!userActions||!userActions.hotkeys)return;(el=>{const tagName=el.tagName.toLowerCase();if(el.isContentEditable)return!0;if("input"===tagName)return-1===["button","checkbox","hidden","radio","reset","submit"].indexOf(el.type);return-1!==["textarea"].indexOf(tagName)})(this.el_.ownerDocument.activeElement)||("function"==typeof userActions.hotkeys?userActions.hotkeys.call(this,event):this.handleHotkeys(event))}handleHotkeys(event){const hotkeys=this.options_.userActions?this.options_.userActions.hotkeys:{},{fullscreenKey:fullscreenKey=(keydownEvent=>keycode.isEventKey(keydownEvent,"f")),muteKey:muteKey=(keydownEvent=>keycode.isEventKey(keydownEvent,"m")),playPauseKey:playPauseKey=(keydownEvent=>keycode.isEventKey(keydownEvent,"k")||keycode.isEventKey(keydownEvent,"Space"))}=hotkeys;if(fullscreenKey.call(this,event)){event.preventDefault(),event.stopPropagation();const FSToggle=Component$1.getComponent("FullscreenToggle");!1!==document[this.fsApi_.fullscreenEnabled]&&FSToggle.prototype.handleClick.call(this,event)}else if(muteKey.call(this,event)){event.preventDefault(),event.stopPropagation();Component$1.getComponent("MuteToggle").prototype.handleClick.call(this,event)}else if(playPauseKey.call(this,event)){event.preventDefault(),event.stopPropagation();Component$1.getComponent("PlayToggle").prototype.handleClick.call(this,event)}}canPlayType(type){let can;for(let i=0,j=this.options_.techOrder;i<j.length;i++){const techName=j[i];let tech=Tech.getTech(techName);if(tech||(tech=Component$1.getComponent(techName)),tech){if(tech.isSupported()&&(can=tech.canPlayType(type),can))return can}else log$1.error('The "'.concat(techName,'" tech is undefined. Skipped browser support check for that tech.'))}return""}selectSource(sources){const techs=this.options_.techOrder.map((techName=>[techName,Tech.getTech(techName)])).filter((_ref6=>{let[techName,tech]=_ref6;return tech?tech.isSupported():(log$1.error('The "'.concat(techName,'" tech is undefined. Skipped browser support check for that tech.')),!1)})),findFirstPassingTechSourcePair=function(outerArray,innerArray,tester){let found;return outerArray.some((outerChoice=>innerArray.some((innerChoice=>{if(found=tester(outerChoice,innerChoice),found)return!0})))),found};let foundSourceAndTech;const finder=(_ref7,source)=>{let[techName,tech]=_ref7;if(tech.canPlaySource(source,this.options_[techName.toLowerCase()]))return{source:source,tech:techName}};var fn;return foundSourceAndTech=this.options_.sourceOrder?findFirstPassingTechSourcePair(sources,techs,(fn=finder,(a,b)=>fn(b,a))):findFirstPassingTechSourcePair(techs,sources,finder),foundSourceAndTech||!1}handleSrc_(source,isRetry){if(void 0===source)return this.cache_.src||"";this.resetRetryOnError_&&this.resetRetryOnError_();const sources=filterSource(source);if(sources.length){if(this.changingSrc_=!0,isRetry||(this.cache_.sources=sources),this.updateSourceCaches_(sources[0]),setSource(this,sources[0],((middlewareSource,mws)=>{this.middleware_=mws,isRetry||(this.cache_.sources=sources),this.updateSourceCaches_(middlewareSource);if(this.src_(middlewareSource))return sources.length>1?this.handleSrc_(sources.slice(1)):(this.changingSrc_=!1,this.setTimeout((function(){this.error({code:4,message:this.options_.notSupportedMessage})}),0),void this.triggerReady());var middleware,tech;middleware=mws,tech=this.tech_,middleware.forEach((mw=>mw.setTech&&mw.setTech(tech)))})),sources.length>1){const retry=()=>{this.error(null),this.handleSrc_(sources.slice(1),!0)},stopListeningForErrors=()=>{this.off("error",retry)};this.one("error",retry),this.one("playing",stopListeningForErrors),this.resetRetryOnError_=()=>{this.off("error",retry),this.off("playing",stopListeningForErrors)}}}else this.setTimeout((function(){this.error({code:4,message:this.options_.notSupportedMessage})}),0)}src(source){return this.handleSrc_(source,!1)}src_(source){const sourceTech=this.selectSource([source]);return!sourceTech||(titleCaseEquals(sourceTech.tech,this.techName_)?(this.ready((function(){this.tech_.constructor.prototype.hasOwnProperty("setSource")?this.techCall_("setSource",source):this.techCall_("src",source.src),this.changingSrc_=!1}),!0),!1):(this.changingSrc_=!0,this.loadTech_(sourceTech.tech,sourceTech.source),this.tech_.ready((()=>{this.changingSrc_=!1})),!1))}load(){this.techCall_("load")}reset(){if(this.paused())this.doReset_();else{silencePromise(this.play().then((()=>this.doReset_())))}}doReset_(){this.tech_&&this.tech_.clearTracks("text"),this.resetCache_(),this.poster(""),this.loadTech_(this.options_.techOrder[0],null),this.techCall_("reset"),this.resetControlBarUI_(),isEvented(this)&&this.trigger("playerreset")}resetControlBarUI_(){this.resetProgressBar_(),this.resetPlaybackRate_(),this.resetVolumeBar_()}resetProgressBar_(){this.currentTime(0);const{currentTimeDisplay:currentTimeDisplay,durationDisplay:durationDisplay,progressControl:progressControl,remainingTimeDisplay:remainingTimeDisplay}=this.controlBar||{},{seekBar:seekBar}=progressControl||{};currentTimeDisplay&&currentTimeDisplay.updateContent(),durationDisplay&&durationDisplay.updateContent(),remainingTimeDisplay&&remainingTimeDisplay.updateContent(),seekBar&&(seekBar.update(),seekBar.loadProgressBar&&seekBar.loadProgressBar.update())}resetPlaybackRate_(){this.playbackRate(this.defaultPlaybackRate()),this.handleTechRateChange_()}resetVolumeBar_(){this.volume(1),this.trigger("volumechange")}currentSources(){const source=this.currentSource(),sources=[];return 0!==Object.keys(source).length&&sources.push(source),this.cache_.sources||sources}currentSource(){return this.cache_.source||{}}currentSrc(){return this.currentSource()&&this.currentSource().src||""}currentType(){return this.currentSource()&&this.currentSource().type||""}preload(value){return void 0!==value?(this.techCall_("setPreload",value),void(this.options_.preload=value)):this.techGet_("preload")}autoplay(value){if(void 0===value)return this.options_.autoplay||!1;let techAutoplay;"string"==typeof value&&/(any|play|muted)/.test(value)||!0===value&&this.options_.normalizeAutoplay?(this.options_.autoplay=value,this.manualAutoplay_("string"==typeof value?value:"play"),techAutoplay=!1):this.options_.autoplay=!!value,techAutoplay=void 0===techAutoplay?this.options_.autoplay:techAutoplay,this.tech_&&this.techCall_("setAutoplay",techAutoplay)}playsinline(value){return void 0!==value?(this.techCall_("setPlaysinline",value),this.options_.playsinline=value,this):this.techGet_("playsinline")}loop(value){return void 0!==value?(this.techCall_("setLoop",value),void(this.options_.loop=value)):this.techGet_("loop")}poster(src){if(void 0===src)return this.poster_;src||(src=""),src!==this.poster_&&(this.poster_=src,this.techCall_("setPoster",src),this.isPosterFromTech_=!1,this.trigger("posterchange"))}handleTechPosterChange_(){if((!this.poster_||this.options_.techCanOverridePoster)&&this.tech_&&this.tech_.poster){const newPoster=this.tech_.poster()||"";newPoster!==this.poster_&&(this.poster_=newPoster,this.isPosterFromTech_=!0,this.trigger("posterchange"))}}controls(bool){if(void 0===bool)return!!this.controls_;bool=!!bool,this.controls_!==bool&&(this.controls_=bool,this.usingNativeControls()&&this.techCall_("setControls",bool),this.controls_?(this.removeClass("vjs-controls-disabled"),this.addClass("vjs-controls-enabled"),this.trigger("controlsenabled"),this.usingNativeControls()||this.addTechControlsListeners_()):(this.removeClass("vjs-controls-enabled"),this.addClass("vjs-controls-disabled"),this.trigger("controlsdisabled"),this.usingNativeControls()||this.removeTechControlsListeners_()))}usingNativeControls(bool){if(void 0===bool)return!!this.usingNativeControls_;bool=!!bool,this.usingNativeControls_!==bool&&(this.usingNativeControls_=bool,this.usingNativeControls_?(this.addClass("vjs-using-native-controls"),this.trigger("usingnativecontrols")):(this.removeClass("vjs-using-native-controls"),this.trigger("usingcustomcontrols")))}error(err){if(void 0===err)return this.error_||null;if(hooks("beforeerror").forEach((hookFunction=>{const newErr=hookFunction(this,err);isObject$1(newErr)&&!Array.isArray(newErr)||"string"==typeof newErr||"number"==typeof newErr||null===newErr?err=newErr:this.log.error("please return a value that MediaError expects in beforeerror hooks")})),this.options_.suppressNotSupportedError&&err&&4===err.code){const triggerSuppressedError=function(){this.error(err)};return this.options_.suppressNotSupportedError=!1,this.any(["click","touchstart"],triggerSuppressedError),void this.one("loadstart",(function(){this.off(["click","touchstart"],triggerSuppressedError)}))}if(null===err)return this.error_=err,this.removeClass("vjs-error"),void(this.errorDisplay&&this.errorDisplay.close());this.error_=new MediaError(err),this.addClass("vjs-error"),log$1.error("(CODE:".concat(this.error_.code," ").concat(MediaError.errorTypes[this.error_.code],")"),this.error_.message,this.error_),this.trigger("error"),hooks("error").forEach((hookFunction=>hookFunction(this,this.error_)))}reportUserActivity(event){this.userActivity_=!0}userActive(bool){if(void 0===bool)return this.userActive_;if((bool=!!bool)!==this.userActive_){if(this.userActive_=bool,this.userActive_)return this.userActivity_=!0,this.removeClass("vjs-user-inactive"),this.addClass("vjs-user-active"),void this.trigger("useractive");this.tech_&&this.tech_.one("mousemove",(function(e){e.stopPropagation(),e.preventDefault()})),this.userActivity_=!1,this.removeClass("vjs-user-active"),this.addClass("vjs-user-inactive"),this.trigger("userinactive")}}listenForUserActivity_(){let mouseInProgress,lastMoveX,lastMoveY;const handleActivity=bind_(this,this.reportUserActivity),handleMouseUpAndMouseLeave=function(event){handleActivity(),this.clearInterval(mouseInProgress)};this.on("mousedown",(function(){handleActivity(),this.clearInterval(mouseInProgress),mouseInProgress=this.setInterval(handleActivity,250)})),this.on("mousemove",(function(e){e.screenX===lastMoveX&&e.screenY===lastMoveY||(lastMoveX=e.screenX,lastMoveY=e.screenY,handleActivity())})),this.on("mouseup",handleMouseUpAndMouseLeave),this.on("mouseleave",handleMouseUpAndMouseLeave);const controlBar=this.getChild("controlBar");let inactivityTimeout;!controlBar||IS_IOS||IS_ANDROID||(controlBar.on("mouseenter",(function(event){0!==this.player().options_.inactivityTimeout&&(this.player().cache_.inactivityTimeout=this.player().options_.inactivityTimeout),this.player().options_.inactivityTimeout=0})),controlBar.on("mouseleave",(function(event){this.player().options_.inactivityTimeout=this.player().cache_.inactivityTimeout}))),this.on("keydown",handleActivity),this.on("keyup",handleActivity),this.setInterval((function(){if(!this.userActivity_)return;this.userActivity_=!1,this.userActive(!0),this.clearTimeout(inactivityTimeout);const timeout=this.options_.inactivityTimeout;timeout<=0||(inactivityTimeout=this.setTimeout((function(){this.userActivity_||this.userActive(!1)}),timeout))}),250)}playbackRate(rate){if(void 0===rate)return this.tech_&&this.tech_.featuresPlaybackRate?this.cache_.lastPlaybackRate||this.techGet_("playbackRate"):1;this.techCall_("setPlaybackRate",rate)}defaultPlaybackRate(rate){return void 0!==rate?this.techCall_("setDefaultPlaybackRate",rate):this.tech_&&this.tech_.featuresPlaybackRate?this.techGet_("defaultPlaybackRate"):1}isAudio(bool){if(void 0===bool)return!!this.isAudio_;this.isAudio_=!!bool}enableAudioOnlyUI_(){this.addClass("vjs-audio-only-mode");const playerChildren=this.children(),controlBar=this.getChild("ControlBar"),controlBarHeight=controlBar&&controlBar.currentHeight();playerChildren.forEach((child=>{child!==controlBar&&child.el_&&!child.hasClass("vjs-hidden")&&(child.hide(),this.audioOnlyCache_.hiddenChildren.push(child))})),this.audioOnlyCache_.playerHeight=this.currentHeight(),this.height(controlBarHeight),this.trigger("audioonlymodechange")}disableAudioOnlyUI_(){this.removeClass("vjs-audio-only-mode"),this.audioOnlyCache_.hiddenChildren.forEach((child=>child.show())),this.height(this.audioOnlyCache_.playerHeight),this.trigger("audioonlymodechange")}audioOnlyMode(value){if("boolean"!=typeof value||value===this.audioOnlyMode_)return this.audioOnlyMode_;if(this.audioOnlyMode_=value,value){const exitPromises=[];return this.isInPictureInPicture()&&exitPromises.push(this.exitPictureInPicture()),this.isFullscreen()&&exitPromises.push(this.exitFullscreen()),this.audioPosterMode()&&exitPromises.push(this.audioPosterMode(!1)),Promise.all(exitPromises).then((()=>this.enableAudioOnlyUI_()))}return Promise.resolve().then((()=>this.disableAudioOnlyUI_()))}enablePosterModeUI_(){(this.tech_&&this.tech_).hide(),this.addClass("vjs-audio-poster-mode"),this.trigger("audiopostermodechange")}disablePosterModeUI_(){(this.tech_&&this.tech_).show(),this.removeClass("vjs-audio-poster-mode"),this.trigger("audiopostermodechange")}audioPosterMode(value){if("boolean"!=typeof value||value===this.audioPosterMode_)return this.audioPosterMode_;if(this.audioPosterMode_=value,value){if(this.audioOnlyMode()){return this.audioOnlyMode(!1).then((()=>{this.enablePosterModeUI_()}))}return Promise.resolve().then((()=>{this.enablePosterModeUI_()}))}return Promise.resolve().then((()=>{this.disablePosterModeUI_()}))}addTextTrack(kind,label,language){if(this.tech_)return this.tech_.addTextTrack(kind,label,language)}addRemoteTextTrack(options,manualCleanup){if(this.tech_)return this.tech_.addRemoteTextTrack(options,manualCleanup)}removeRemoteTextTrack(){let obj=arguments.length>0&&void 0!==arguments[0]?arguments[0]:{},{track:track}=obj;if(track||(track=obj),this.tech_)return this.tech_.removeRemoteTextTrack(track)}getVideoPlaybackQuality(){return this.techGet_("getVideoPlaybackQuality")}videoWidth(){return this.tech_&&this.tech_.videoWidth&&this.tech_.videoWidth()||0}videoHeight(){return this.tech_&&this.tech_.videoHeight&&this.tech_.videoHeight()||0}language(code){if(void 0===code)return this.language_;this.language_!==String(code).toLowerCase()&&(this.language_=String(code).toLowerCase(),isEvented(this)&&this.trigger("languagechange"))}languages(){return merge$2(Player.prototype.options_.languages,this.languages_)}toJSON(){const options=merge$2(this.options_),tracks=options.tracks;options.tracks=[];for(let i=0;i<tracks.length;i++){let track=tracks[i];track=merge$2(track),track.player=void 0,options.tracks[i]=track}return options}createModal(content,options){(options=options||{}).content=content||"";const modal=new ModalDialog(this,options);return this.addChild(modal),modal.on("dispose",(()=>{this.removeChild(modal)})),modal.open(),modal}updateCurrentBreakpoint_(){if(!this.responsive())return;const currentBreakpoint=this.currentBreakpoint(),currentWidth=this.currentWidth();for(let i=0;i<BREAKPOINT_ORDER.length;i++){const candidateBreakpoint=BREAKPOINT_ORDER[i];if(currentWidth<=this.breakpoints_[candidateBreakpoint]){if(currentBreakpoint===candidateBreakpoint)return;currentBreakpoint&&this.removeClass(BREAKPOINT_CLASSES[currentBreakpoint]),this.addClass(BREAKPOINT_CLASSES[candidateBreakpoint]),this.breakpoint_=candidateBreakpoint;break}}}removeCurrentBreakpoint_(){const className=this.currentBreakpointClass();this.breakpoint_="",className&&this.removeClass(className)}breakpoints(breakpoints){return void 0===breakpoints||(this.breakpoint_="",this.breakpoints_=Object.assign({},DEFAULT_BREAKPOINTS,breakpoints),this.updateCurrentBreakpoint_()),Object.assign(this.breakpoints_)}responsive(value){if(void 0===value)return this.responsive_;return(value=Boolean(value))!==this.responsive_?(this.responsive_=value,value?(this.on("playerresize",this.boundUpdateCurrentBreakpoint_),this.updateCurrentBreakpoint_()):(this.off("playerresize",this.boundUpdateCurrentBreakpoint_),this.removeCurrentBreakpoint_()),value):void 0}currentBreakpoint(){return this.breakpoint_}currentBreakpointClass(){return BREAKPOINT_CLASSES[this.breakpoint_]||""}loadMedia(media,ready){if(!media||"object"!=typeof media)return;this.reset(),this.cache_.media=merge$2(media);const{artist:artist,artwork:artwork,description:description,poster:poster,src:src,textTracks:textTracks,title:title}=this.cache_.media;!artwork&&poster&&(this.cache_.media.artwork=[{src:poster,type:getMimetype(poster)}]),src&&this.src(src),poster&&this.poster(poster),Array.isArray(textTracks)&&textTracks.forEach((tt=>this.addRemoteTextTrack(tt,!1))),this.titleBar&&this.titleBar.update({title:title,description:description||artist||""}),this.ready(ready)}getMedia(){if(!this.cache_.media){const poster=this.poster(),media={src:this.currentSources(),textTracks:Array.prototype.map.call(this.remoteTextTracks(),(tt=>({kind:tt.kind,label:tt.label,language:tt.language,src:tt.src})))};return poster&&(media.poster=poster,media.artwork=[{src:media.poster,type:getMimetype(media.poster)}]),media}return merge$2(this.cache_.media)}static getTagSettings(tag){const baseOptions={sources:[],tracks:[]},tagOptions=getAttributes(tag),dataSetup=tagOptions["data-setup"];if(hasClass(tag,"vjs-fill")&&(tagOptions.fill=!0),hasClass(tag,"vjs-fluid")&&(tagOptions.fluid=!0),null!==dataSetup){const[err,data]=tuple(dataSetup||"{}");err&&log$1.error(err),Object.assign(tagOptions,data)}if(Object.assign(baseOptions,tagOptions),tag.hasChildNodes()){const children=tag.childNodes;for(let i=0,j=children.length;i<j;i++){const child=children[i],childName=child.nodeName.toLowerCase();"source"===childName?baseOptions.sources.push(getAttributes(child)):"track"===childName&&baseOptions.tracks.push(getAttributes(child))}}return baseOptions}debug(enabled){if(void 0===enabled)return this.debugEnabled_;enabled?(this.trigger("debugon"),this.previousLogLevel_=this.log.level,this.log.level("debug"),this.debugEnabled_=!0):(this.trigger("debugoff"),this.log.level(this.previousLogLevel_),this.previousLogLevel_=void 0,this.debugEnabled_=!1)}playbackRates(newRates){if(void 0===newRates)return this.cache_.playbackRates;Array.isArray(newRates)&&newRates.every((rate=>"number"==typeof rate))&&(this.cache_.playbackRates=newRates,this.trigger("playbackrateschange"))}}ALL.names.forEach((function(name){const props=ALL[name];Player.prototype[props.getterName]=function(){return this.tech_?this.tech_[props.getterName]():(this[props.privateName]=this[props.privateName]||new props.ListClass,this[props.privateName])}})),Player.prototype.crossorigin=Player.prototype.crossOrigin,Player.players={};const navigator=window.navigator;Player.prototype.options_={techOrder:Tech.defaultTechOrder_,html5:{},enableSourceset:!0,inactivityTimeout:2e3,playbackRates:[],liveui:!1,children:["mediaLoader","posterImage","titleBar","textTrackDisplay","loadingSpinner","bigPlayButton","liveTracker","controlBar","errorDisplay","textTrackSettings","resizeManager"],language:navigator&&(navigator.languages&&navigator.languages[0]||navigator.userLanguage||navigator.language)||"en",languages:{},notSupportedMessage:"No compatible source was found for this media.",normalizeAutoplay:!1,fullscreen:{options:{navigationUI:"hide"}},breakpoints:{},responsive:!1,audioOnlyMode:!1,audioPosterMode:!1},["ended","seeking","seekable","networkState","readyState"].forEach((function(fn){Player.prototype[fn]=function(){return this.techGet_(fn)}})),TECH_EVENTS_RETRIGGER.forEach((function(event){Player.prototype["handleTech".concat(toTitleCase$1(event),"_")]=function(){return this.trigger(event)}})),Component$1.registerComponent("Player",Player);const pluginStorage={},pluginExists=name=>pluginStorage.hasOwnProperty(name),getPlugin=name=>pluginExists(name)?pluginStorage[name]:void 0,markPluginAsActive=(player,name)=>{player.activePlugins_=player.activePlugins_||{},player.activePlugins_[name]=!0},triggerSetupEvent=(player,hash,before)=>{const eventName=(before?"before":"")+"pluginsetup";player.trigger(eventName,hash),player.trigger(eventName+":"+hash.name,hash)},createPluginFactory=(name,PluginSubClass)=>(PluginSubClass.prototype.name=name,function(){triggerSetupEvent(this,{name:name,plugin:PluginSubClass,instance:null},!0);for(var _len21=arguments.length,args=new Array(_len21),_key21=0;_key21<_len21;_key21++)args[_key21]=arguments[_key21];const instance=new PluginSubClass(...[this,...args]);return this[name]=()=>instance,triggerSetupEvent(this,instance.getEventHash()),instance});class Plugin{constructor(player){if(this.constructor===Plugin)throw new Error("Plugin must be sub-classed; not directly instantiated.");this.player=player,this.log||(this.log=this.player.log.createLogger(this.name)),evented(this),delete this.trigger,stateful(this,this.constructor.defaultState),markPluginAsActive(player,this.name),this.dispose=this.dispose.bind(this),player.on("dispose",this.dispose)}version(){return this.constructor.VERSION}getEventHash(){let hash=arguments.length>0&&void 0!==arguments[0]?arguments[0]:{};return hash.name=this.name,hash.plugin=this.constructor,hash.instance=this,hash}trigger(event){let hash=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};return trigger(this.eventBusEl_,event,this.getEventHash(hash))}handleStateChanged(e){}dispose(){const{name:name,player:player}=this;this.trigger("dispose"),this.off(),player.off("dispose",this.dispose),player.activePlugins_[name]=!1,this.player=this.state=null,player[name]=createPluginFactory(name,pluginStorage[name])}static isBasic(plugin){const p="string"==typeof plugin?getPlugin(plugin):plugin;return"function"==typeof p&&!Plugin.prototype.isPrototypeOf(p.prototype)}static registerPlugin(name,plugin){if("string"!=typeof name)throw new Error('Illegal plugin name, "'.concat(name,'", must be a string, was ').concat(typeof name,"."));if(pluginExists(name))log$1.warn('A plugin named "'.concat(name,'" already exists. You may want to avoid re-registering plugins!'));else if(Player.prototype.hasOwnProperty(name))throw new Error('Illegal plugin name, "'.concat(name,'", cannot share a name with an existing player method!'));if("function"!=typeof plugin)throw new Error('Illegal plugin for "'.concat(name,'", must be a function, was ').concat(typeof plugin,"."));return pluginStorage[name]=plugin,"plugin"!==name&&(Plugin.isBasic(plugin)?Player.prototype[name]=function(name,plugin){const basicPluginWrapper=function(){triggerSetupEvent(this,{name:name,plugin:plugin,instance:null},!0);const instance=plugin.apply(this,arguments);return markPluginAsActive(this,name),triggerSetupEvent(this,{name:name,plugin:plugin,instance:instance}),instance};return Object.keys(plugin).forEach((function(prop){basicPluginWrapper[prop]=plugin[prop]})),basicPluginWrapper}(name,plugin):Player.prototype[name]=createPluginFactory(name,plugin)),plugin}static deregisterPlugin(name){if("plugin"===name)throw new Error("Cannot de-register base plugin.");pluginExists(name)&&(delete pluginStorage[name],delete Player.prototype[name])}static getPlugins(){let result;return(arguments.length>0&&void 0!==arguments[0]?arguments[0]:Object.keys(pluginStorage)).forEach((name=>{const plugin=getPlugin(name);plugin&&(result=result||{},result[name]=plugin)})),result}static getPluginVersion(name){const plugin=getPlugin(name);return plugin&&plugin.VERSION||""}}function deprecateForMajor(major,oldName,newName,fn){return function(message,fn){let warned=!1;return function(){warned||log$1.warn(message),warned=!0;for(var _len22=arguments.length,args=new Array(_len22),_key22=0;_key22<_len22;_key22++)args[_key22]=arguments[_key22];return fn.apply(this,args)}}("".concat(oldName," is deprecated and will be removed in ").concat(major,".0; please use ").concat(newName," instead."),fn)}Plugin.getPlugin=getPlugin,Plugin.BASE_PLUGIN_NAME="plugin",Plugin.registerPlugin("plugin",Plugin),Player.prototype.usingPlugin=function(name){return!!this.activePlugins_&&!0===this.activePlugins_[name]},Player.prototype.hasPlugin=function(name){return!!pluginExists(name)};const normalizeId=id=>0===id.indexOf("#")?id.slice(1):id;function videojs(id,options,ready){let player=videojs.getPlayer(id);if(player)return options&&log$1.warn('Player "'.concat(id,'" is already initialised. Options will not be applied.')),ready&&player.ready(ready),player;const el="string"==typeof id?$("#"+normalizeId(id)):id;if(!isEl(el))throw new TypeError("The element or ID supplied is not valid. (videojs)");el.ownerDocument.defaultView&&el.ownerDocument.body.contains(el)||log$1.warn("The element supplied is not included in the DOM"),!0===(options=options||{}).restoreEl&&(options.restoreEl=(el.parentNode&&el.parentNode.hasAttribute("data-vjs-player")?el.parentNode:el).cloneNode(!0)),hooks("beforesetup").forEach((hookFunction=>{const opts=hookFunction(el,merge$2(options));isObject$1(opts)&&!Array.isArray(opts)?options=merge$2(options,opts):log$1.error("please return an object in beforesetup hooks")}));const PlayerComponent=Component$1.getComponent("Player");return player=new PlayerComponent(el,options,ready),hooks("setup").forEach((hookFunction=>hookFunction(player))),player}if(videojs.hooks_=hooks_,videojs.hooks=hooks,videojs.hook=function(type,fn){hooks(type,fn)},videojs.hookOnce=function(type,fn){hooks(type,[].concat(fn).map((original=>{const wrapper=function(){return removeHook(type,wrapper),original(...arguments)};return wrapper})))},videojs.removeHook=removeHook,!0!==window.VIDEOJS_NO_DYNAMIC_STYLE&&isReal()){let style=$(".vjs-styles-defaults");if(!style){style=createStyleElement("vjs-styles-defaults");const head=$("head");head&&head.insertBefore(style,head.firstChild),setTextContent(style,"\n      .video-js {\n        width: 300px;\n        height: 150px;\n      }\n\n      .vjs-fluid:not(.vjs-audio-only-mode) {\n        padding-top: 56.25%\n      }\n    ")}}autoSetupTimeout(1,videojs),videojs.VERSION="8.3.0",videojs.options=Player.prototype.options_,videojs.getPlayers=()=>Player.players,videojs.getPlayer=id=>{const players=Player.players;let tag;if("string"==typeof id){const nId=normalizeId(id),player=players[nId];if(player)return player;tag=$("#"+nId)}else tag=id;if(isEl(tag)){const{player:player,playerId:playerId}=tag;if(player||players[playerId])return player||players[playerId]}},videojs.getAllPlayers=()=>Object.keys(Player.players).map((k=>Player.players[k])).filter(Boolean),videojs.players=Player.players,videojs.getComponent=Component$1.getComponent,videojs.registerComponent=(name,comp)=>{Tech.isTech(comp)&&log$1.warn("The ".concat(name," tech was registered as a component. It should instead be registered using videojs.registerTech(name, tech)")),Component$1.registerComponent.call(Component$1,name,comp)},videojs.getTech=Tech.getTech,videojs.registerTech=Tech.registerTech,videojs.use=function(type,middleware){middlewares[type]=middlewares[type]||[],middlewares[type].push(middleware)},Object.defineProperty(videojs,"middleware",{value:{},writeable:!1,enumerable:!0}),Object.defineProperty(videojs.middleware,"TERMINATOR",{value:TERMINATOR,writeable:!1,enumerable:!0}),videojs.browser=browser,videojs.obj=Obj,videojs.mergeOptions=deprecateForMajor(9,"videojs.mergeOptions","videojs.obj.merge",merge$2),videojs.defineLazyProperty=deprecateForMajor(9,"videojs.defineLazyProperty","videojs.obj.defineLazyProperty",defineLazyProperty),videojs.bind=deprecateForMajor(9,"videojs.bind","native Function.prototype.bind",bind_),videojs.registerPlugin=Plugin.registerPlugin,videojs.deregisterPlugin=Plugin.deregisterPlugin,videojs.plugin=(name,plugin)=>(log$1.warn("videojs.plugin() is deprecated; use videojs.registerPlugin() instead"),Plugin.registerPlugin(name,plugin)),videojs.getPlugins=Plugin.getPlugins,videojs.getPlugin=Plugin.getPlugin,videojs.getPluginVersion=Plugin.getPluginVersion,videojs.addLanguage=function(code,data){return code=(""+code).toLowerCase(),videojs.options.languages=merge$2(videojs.options.languages,{[code]:data}),videojs.options.languages[code]},videojs.log=log$1,videojs.createLogger=createLogger,videojs.time=Time,videojs.createTimeRange=deprecateForMajor(9,"videojs.createTimeRange","videojs.time.createTimeRanges",createTimeRanges$1),videojs.createTimeRanges=deprecateForMajor(9,"videojs.createTimeRanges","videojs.time.createTimeRanges",createTimeRanges$1),videojs.formatTime=deprecateForMajor(9,"videojs.formatTime","videojs.time.formatTime",formatTime),videojs.setFormatTime=deprecateForMajor(9,"videojs.setFormatTime","videojs.time.setFormatTime",setFormatTime),videojs.resetFormatTime=deprecateForMajor(9,"videojs.resetFormatTime","videojs.time.resetFormatTime",resetFormatTime),videojs.parseUrl=deprecateForMajor(9,"videojs.parseUrl","videojs.url.parseUrl",parseUrl),videojs.isCrossOrigin=deprecateForMajor(9,"videojs.isCrossOrigin","videojs.url.isCrossOrigin",isCrossOrigin),videojs.EventTarget=EventTarget$2,videojs.any=any,videojs.on=on,videojs.one=one,videojs.off=off,videojs.trigger=trigger,videojs.xhr=lib,videojs.TextTrack=TextTrack,videojs.AudioTrack=AudioTrack,videojs.VideoTrack=VideoTrack,["isEl","isTextNode","createEl","hasClass","addClass","removeClass","toggleClass","setAttributes","getAttributes","emptyEl","appendContent","insertContent"].forEach((k=>{videojs[k]=function(){return log$1.warn("videojs.".concat(k,"() is deprecated; use videojs.dom.").concat(k,"() instead")),Dom[k].apply(null,arguments)}})),videojs.computedStyle=deprecateForMajor(9,"videojs.computedStyle","videojs.dom.computedStyle",computedStyle),videojs.dom=Dom,videojs.fn=Fn,videojs.num=Num,videojs.str=Str,videojs.url=Url,createCommonjsModule((function(module,exports){
+/*! @name videojs-contrib-quality-levels @version 3.0.0 @license Apache-2.0 */
+module.exports=function(videojs){function _interopDefaultLegacy(e){return e&&"object"==typeof e&&"default"in e?e:{default:e}}var videojs__default=_interopDefaultLegacy(videojs);class QualityLevel{constructor(representation){let level=this;return level.id=representation.id,level.label=level.id,level.width=representation.width,level.height=representation.height,level.bitrate=representation.bandwidth,level.frameRate=representation.frameRate,level.enabled_=representation.enabled,Object.defineProperty(level,"enabled",{get:()=>level.enabled_(),set(enable){level.enabled_(enable)}}),level}}class QualityLevelList extends videojs__default.default.EventTarget{constructor(){super();let list=this;return list.levels_=[],list.selectedIndex_=-1,Object.defineProperty(list,"selectedIndex",{get:()=>list.selectedIndex_}),Object.defineProperty(list,"length",{get:()=>list.levels_.length}),list}addQualityLevel(representation){let qualityLevel=this.getQualityLevelById(representation.id);if(qualityLevel)return qualityLevel;const index=this.levels_.length;return qualityLevel=new QualityLevel(representation),""+index in this||Object.defineProperty(this,index,{get(){return this.levels_[index]}}),this.levels_.push(qualityLevel),this.trigger({qualityLevel:qualityLevel,type:"addqualitylevel"}),qualityLevel}removeQualityLevel(qualityLevel){let removed=null;for(let i=0,l=this.length;i<l;i++)if(this[i]===qualityLevel){removed=this.levels_.splice(i,1)[0],this.selectedIndex_===i?this.selectedIndex_=-1:this.selectedIndex_>i&&this.selectedIndex_--;break}return removed&&this.trigger({qualityLevel:qualityLevel,type:"removequalitylevel"}),removed}getQualityLevelById(id){for(let i=0,l=this.length;i<l;i++){const level=this[i];if(level.id===id)return level}return null}dispose(){this.selectedIndex_=-1,this.levels_.length=0}}QualityLevelList.prototype.allowedEvents_={change:"change",addqualitylevel:"addqualitylevel",removequalitylevel:"removequalitylevel"};for(const event in QualityLevelList.prototype.allowedEvents_)QualityLevelList.prototype["on"+event]=null;var version="3.0.0";const registerPlugin=videojs__default.default.registerPlugin||videojs__default.default.plugin,initPlugin=function(player,options){const originalPluginFn=player.qualityLevels,qualityLevelList=new QualityLevelList,disposeHandler=function(){qualityLevelList.dispose(),player.qualityLevels=originalPluginFn,player.off("dispose",disposeHandler)};return player.on("dispose",disposeHandler),player.qualityLevels=()=>qualityLevelList,player.qualityLevels.VERSION=version,qualityLevelList},qualityLevels=function(options){return initPlugin(this,videojs__default.default.mergeOptions({},options))};return registerPlugin("qualityLevels",qualityLevels),qualityLevels.VERSION=version,qualityLevels}(videojs)}));var urlToolkit=createCommonjsModule((function(module,exports){var URL_REGEX,FIRST_SEGMENT_REGEX,SLASH_DOT_REGEX,SLASH_DOT_DOT_REGEX,URLToolkit;URL_REGEX=/^(?=((?:[a-zA-Z0-9+\-.]+:)?))\1(?=((?:\/\/[^\/?#]*)?))\2(?=((?:(?:[^?#\/]*\/)*[^;?#\/]*)?))\3((?:;[^?#]*)?)(\?[^#]*)?(#[^]*)?$/,FIRST_SEGMENT_REGEX=/^(?=([^\/?#]*))\1([^]*)$/,SLASH_DOT_REGEX=/(?:\/|^)\.(?=\/)/g,SLASH_DOT_DOT_REGEX=/(?:\/|^)\.\.\/(?!\.\.\/)[^\/]*(?=\/)/g,URLToolkit={buildAbsoluteURL:function(baseURL,relativeURL,opts){if(opts=opts||{},baseURL=baseURL.trim(),!(relativeURL=relativeURL.trim())){if(!opts.alwaysNormalize)return baseURL;var basePartsForNormalise=URLToolkit.parseURL(baseURL);if(!basePartsForNormalise)throw new Error("Error trying to parse base URL.");return basePartsForNormalise.path=URLToolkit.normalizePath(basePartsForNormalise.path),URLToolkit.buildURLFromParts(basePartsForNormalise)}var relativeParts=URLToolkit.parseURL(relativeURL);if(!relativeParts)throw new Error("Error trying to parse relative URL.");if(relativeParts.scheme)return opts.alwaysNormalize?(relativeParts.path=URLToolkit.normalizePath(relativeParts.path),URLToolkit.buildURLFromParts(relativeParts)):relativeURL;var baseParts=URLToolkit.parseURL(baseURL);if(!baseParts)throw new Error("Error trying to parse base URL.");if(!baseParts.netLoc&&baseParts.path&&"/"!==baseParts.path[0]){var pathParts=FIRST_SEGMENT_REGEX.exec(baseParts.path);baseParts.netLoc=pathParts[1],baseParts.path=pathParts[2]}baseParts.netLoc&&!baseParts.path&&(baseParts.path="/");var builtParts={scheme:baseParts.scheme,netLoc:relativeParts.netLoc,path:null,params:relativeParts.params,query:relativeParts.query,fragment:relativeParts.fragment};if(!relativeParts.netLoc&&(builtParts.netLoc=baseParts.netLoc,"/"!==relativeParts.path[0]))if(relativeParts.path){var baseURLPath=baseParts.path,newPath=baseURLPath.substring(0,baseURLPath.lastIndexOf("/")+1)+relativeParts.path;builtParts.path=URLToolkit.normalizePath(newPath)}else builtParts.path=baseParts.path,relativeParts.params||(builtParts.params=baseParts.params,relativeParts.query||(builtParts.query=baseParts.query));return null===builtParts.path&&(builtParts.path=opts.alwaysNormalize?URLToolkit.normalizePath(relativeParts.path):relativeParts.path),URLToolkit.buildURLFromParts(builtParts)},parseURL:function(url){var parts=URL_REGEX.exec(url);return parts?{scheme:parts[1]||"",netLoc:parts[2]||"",path:parts[3]||"",params:parts[4]||"",query:parts[5]||"",fragment:parts[6]||""}:null},normalizePath:function(path){for(path=path.split("").reverse().join("").replace(SLASH_DOT_REGEX,"");path.length!==(path=path.replace(SLASH_DOT_DOT_REGEX,"")).length;);return path.split("").reverse().join("")},buildURLFromParts:function(parts){return parts.scheme+parts.netLoc+parts.path+parts.params+parts.query+parts.fragment}},module.exports=URLToolkit})),Stream=function(){function Stream(){this.listeners={}}var _proto=Stream.prototype;return _proto.on=function(type,listener){this.listeners[type]||(this.listeners[type]=[]),this.listeners[type].push(listener)},_proto.off=function(type,listener){if(!this.listeners[type])return!1;var index=this.listeners[type].indexOf(listener);return this.listeners[type]=this.listeners[type].slice(0),this.listeners[type].splice(index,1),index>-1},_proto.trigger=function(type){var callbacks=this.listeners[type];if(callbacks)if(2===arguments.length)for(var length=callbacks.length,i=0;i<length;++i)callbacks[i].call(this,arguments[1]);else for(var args=Array.prototype.slice.call(arguments,1),_length=callbacks.length,_i=0;_i<_length;++_i)callbacks[_i].apply(this,args)},_proto.dispose=function(){this.listeners={}},_proto.pipe=function(destination){this.on("data",(function(data){destination.push(data)}))},Stream}();function decodeB64ToUint8Array$1(b64Text){for(var s,decodedString=(s=b64Text,window.atob?window.atob(s):Buffer.from(s,"base64").toString("binary")),array=new Uint8Array(decodedString.length),i=0;i<decodedString.length;i++)array[i]=decodedString.charCodeAt(i);return array}
+/*! @name m3u8-parser @version 6.0.0 @license Apache-2.0 */class LineStream extends Stream{constructor(){super(),this.buffer=""}push(data){let nextNewline;for(this.buffer+=data,nextNewline=this.buffer.indexOf("\n");nextNewline>-1;nextNewline=this.buffer.indexOf("\n"))this.trigger("data",this.buffer.substring(0,nextNewline)),this.buffer=this.buffer.substring(nextNewline+1)}}const TAB=String.fromCharCode(9),parseByterange=function(byterangeString){const match=/([0-9.]*)?@?([0-9.]*)?/.exec(byterangeString||""),result={};return match[1]&&(result.length=parseInt(match[1],10)),match[2]&&(result.offset=parseInt(match[2],10)),result},parseAttributes$1=function(attributes){const result={};if(!attributes)return result;const attrs=attributes.split(new RegExp('(?:^|,)((?:[^=]*)=(?:"[^"]*"|[^,]*))'));let attr,i=attrs.length;for(;i--;)""!==attrs[i]&&(attr=/([^=]*)=(.*)/.exec(attrs[i]).slice(1),attr[0]=attr[0].replace(/^\s+|\s+$/g,""),attr[1]=attr[1].replace(/^\s+|\s+$/g,""),attr[1]=attr[1].replace(/^['"](.*)['"]$/g,"$1"),result[attr[0]]=attr[1]);return result};class ParseStream extends Stream{constructor(){super(),this.customParsers=[],this.tagMappers=[]}push(line){let match,event;if(0===(line=line.trim()).length)return;if("#"!==line[0])return void this.trigger("data",{type:"uri",uri:line});this.tagMappers.reduce(((acc,mapper)=>{const mappedLine=mapper(line);return mappedLine===line?acc:acc.concat([mappedLine])}),[line]).forEach((newLine=>{for(let i=0;i<this.customParsers.length;i++)if(this.customParsers[i].call(this,newLine))return;if(0===newLine.indexOf("#EXT"))if(newLine=newLine.replace("\r",""),match=/^#EXTM3U/.exec(newLine),match)this.trigger("data",{type:"tag",tagType:"m3u"});else{if(match=/^#EXTINF:([0-9\.]*)?,?(.*)?$/.exec(newLine),match)return event={type:"tag",tagType:"inf"},match[1]&&(event.duration=parseFloat(match[1])),match[2]&&(event.title=match[2]),void this.trigger("data",event);if(match=/^#EXT-X-TARGETDURATION:([0-9.]*)?/.exec(newLine),match)return event={type:"tag",tagType:"targetduration"},match[1]&&(event.duration=parseInt(match[1],10)),void this.trigger("data",event);if(match=/^#EXT-X-VERSION:([0-9.]*)?/.exec(newLine),match)return event={type:"tag",tagType:"version"},match[1]&&(event.version=parseInt(match[1],10)),void this.trigger("data",event);if(match=/^#EXT-X-MEDIA-SEQUENCE:(\-?[0-9.]*)?/.exec(newLine),match)return event={type:"tag",tagType:"media-sequence"},match[1]&&(event.number=parseInt(match[1],10)),void this.trigger("data",event);if(match=/^#EXT-X-DISCONTINUITY-SEQUENCE:(\-?[0-9.]*)?/.exec(newLine),match)return event={type:"tag",tagType:"discontinuity-sequence"},match[1]&&(event.number=parseInt(match[1],10)),void this.trigger("data",event);if(match=/^#EXT-X-PLAYLIST-TYPE:(.*)?$/.exec(newLine),match)return event={type:"tag",tagType:"playlist-type"},match[1]&&(event.playlistType=match[1]),void this.trigger("data",event);if(match=/^#EXT-X-BYTERANGE:(.*)?$/.exec(newLine),match)return event=_extends$1(parseByterange(match[1]),{type:"tag",tagType:"byterange"}),void this.trigger("data",event);if(match=/^#EXT-X-ALLOW-CACHE:(YES|NO)?/.exec(newLine),match)return event={type:"tag",tagType:"allow-cache"},match[1]&&(event.allowed=!/NO/.test(match[1])),void this.trigger("data",event);if(match=/^#EXT-X-MAP:(.*)$/.exec(newLine),match){if(event={type:"tag",tagType:"map"},match[1]){const attributes=parseAttributes$1(match[1]);attributes.URI&&(event.uri=attributes.URI),attributes.BYTERANGE&&(event.byterange=parseByterange(attributes.BYTERANGE))}this.trigger("data",event)}else if(match=/^#EXT-X-STREAM-INF:(.*)$/.exec(newLine),match){if(event={type:"tag",tagType:"stream-inf"},match[1]){if(event.attributes=parseAttributes$1(match[1]),event.attributes.RESOLUTION){const split=event.attributes.RESOLUTION.split("x"),resolution={};split[0]&&(resolution.width=parseInt(split[0],10)),split[1]&&(resolution.height=parseInt(split[1],10)),event.attributes.RESOLUTION=resolution}event.attributes.BANDWIDTH&&(event.attributes.BANDWIDTH=parseInt(event.attributes.BANDWIDTH,10)),event.attributes["FRAME-RATE"]&&(event.attributes["FRAME-RATE"]=parseFloat(event.attributes["FRAME-RATE"])),event.attributes["PROGRAM-ID"]&&(event.attributes["PROGRAM-ID"]=parseInt(event.attributes["PROGRAM-ID"],10))}this.trigger("data",event)}else{if(match=/^#EXT-X-MEDIA:(.*)$/.exec(newLine),match)return event={type:"tag",tagType:"media"},match[1]&&(event.attributes=parseAttributes$1(match[1])),void this.trigger("data",event);if(match=/^#EXT-X-ENDLIST/.exec(newLine),match)this.trigger("data",{type:"tag",tagType:"endlist"});else if(match=/^#EXT-X-DISCONTINUITY/.exec(newLine),match)this.trigger("data",{type:"tag",tagType:"discontinuity"});else{if(match=/^#EXT-X-PROGRAM-DATE-TIME:(.*)$/.exec(newLine),match)return event={type:"tag",tagType:"program-date-time"},match[1]&&(event.dateTimeString=match[1],event.dateTimeObject=new Date(match[1])),void this.trigger("data",event);if(match=/^#EXT-X-KEY:(.*)$/.exec(newLine),match)return event={type:"tag",tagType:"key"},match[1]&&(event.attributes=parseAttributes$1(match[1]),event.attributes.IV&&("0x"===event.attributes.IV.substring(0,2).toLowerCase()&&(event.attributes.IV=event.attributes.IV.substring(2)),event.attributes.IV=event.attributes.IV.match(/.{8}/g),event.attributes.IV[0]=parseInt(event.attributes.IV[0],16),event.attributes.IV[1]=parseInt(event.attributes.IV[1],16),event.attributes.IV[2]=parseInt(event.attributes.IV[2],16),event.attributes.IV[3]=parseInt(event.attributes.IV[3],16),event.attributes.IV=new Uint32Array(event.attributes.IV))),void this.trigger("data",event);if(match=/^#EXT-X-START:(.*)$/.exec(newLine),match)return event={type:"tag",tagType:"start"},match[1]&&(event.attributes=parseAttributes$1(match[1]),event.attributes["TIME-OFFSET"]=parseFloat(event.attributes["TIME-OFFSET"]),event.attributes.PRECISE=/YES/.test(event.attributes.PRECISE)),void this.trigger("data",event);if(match=/^#EXT-X-CUE-OUT-CONT:(.*)?$/.exec(newLine),match)return event={type:"tag",tagType:"cue-out-cont"},match[1]?event.data=match[1]:event.data="",void this.trigger("data",event);if(match=/^#EXT-X-CUE-OUT:(.*)?$/.exec(newLine),match)return event={type:"tag",tagType:"cue-out"},match[1]?event.data=match[1]:event.data="",void this.trigger("data",event);if(match=/^#EXT-X-CUE-IN:(.*)?$/.exec(newLine),match)return event={type:"tag",tagType:"cue-in"},match[1]?event.data=match[1]:event.data="",void this.trigger("data",event);if(match=/^#EXT-X-SKIP:(.*)$/.exec(newLine),match&&match[1])return event={type:"tag",tagType:"skip"},event.attributes=parseAttributes$1(match[1]),event.attributes.hasOwnProperty("SKIPPED-SEGMENTS")&&(event.attributes["SKIPPED-SEGMENTS"]=parseInt(event.attributes["SKIPPED-SEGMENTS"],10)),event.attributes.hasOwnProperty("RECENTLY-REMOVED-DATERANGES")&&(event.attributes["RECENTLY-REMOVED-DATERANGES"]=event.attributes["RECENTLY-REMOVED-DATERANGES"].split(TAB)),void this.trigger("data",event);if(match=/^#EXT-X-PART:(.*)$/.exec(newLine),match&&match[1])return event={type:"tag",tagType:"part"},event.attributes=parseAttributes$1(match[1]),["DURATION"].forEach((function(key){event.attributes.hasOwnProperty(key)&&(event.attributes[key]=parseFloat(event.attributes[key]))})),["INDEPENDENT","GAP"].forEach((function(key){event.attributes.hasOwnProperty(key)&&(event.attributes[key]=/YES/.test(event.attributes[key]))})),event.attributes.hasOwnProperty("BYTERANGE")&&(event.attributes.byterange=parseByterange(event.attributes.BYTERANGE)),void this.trigger("data",event);if(match=/^#EXT-X-SERVER-CONTROL:(.*)$/.exec(newLine),match&&match[1])return event={type:"tag",tagType:"server-control"},event.attributes=parseAttributes$1(match[1]),["CAN-SKIP-UNTIL","PART-HOLD-BACK","HOLD-BACK"].forEach((function(key){event.attributes.hasOwnProperty(key)&&(event.attributes[key]=parseFloat(event.attributes[key]))})),["CAN-SKIP-DATERANGES","CAN-BLOCK-RELOAD"].forEach((function(key){event.attributes.hasOwnProperty(key)&&(event.attributes[key]=/YES/.test(event.attributes[key]))})),void this.trigger("data",event);if(match=/^#EXT-X-PART-INF:(.*)$/.exec(newLine),match&&match[1])return event={type:"tag",tagType:"part-inf"},event.attributes=parseAttributes$1(match[1]),["PART-TARGET"].forEach((function(key){event.attributes.hasOwnProperty(key)&&(event.attributes[key]=parseFloat(event.attributes[key]))})),void this.trigger("data",event);if(match=/^#EXT-X-PRELOAD-HINT:(.*)$/.exec(newLine),match&&match[1])return event={type:"tag",tagType:"preload-hint"},event.attributes=parseAttributes$1(match[1]),["BYTERANGE-START","BYTERANGE-LENGTH"].forEach((function(key){if(event.attributes.hasOwnProperty(key)){event.attributes[key]=parseInt(event.attributes[key],10);const subkey="BYTERANGE-LENGTH"===key?"length":"offset";event.attributes.byterange=event.attributes.byterange||{},event.attributes.byterange[subkey]=event.attributes[key],delete event.attributes[key]}})),void this.trigger("data",event);if(match=/^#EXT-X-RENDITION-REPORT:(.*)$/.exec(newLine),match&&match[1])return event={type:"tag",tagType:"rendition-report"},event.attributes=parseAttributes$1(match[1]),["LAST-MSN","LAST-PART"].forEach((function(key){event.attributes.hasOwnProperty(key)&&(event.attributes[key]=parseInt(event.attributes[key],10))})),void this.trigger("data",event);this.trigger("data",{type:"tag",data:newLine.slice(4)})}}}else this.trigger("data",{type:"comment",text:newLine.slice(1)})}))}addParser(_ref8){let{expression:expression,customType:customType,dataParser:dataParser,segment:segment}=_ref8;"function"!=typeof dataParser&&(dataParser=line=>line),this.customParsers.push((line=>{if(expression.exec(line))return this.trigger("data",{type:"custom",data:dataParser(line),customType:customType,segment:segment}),!0}))}addTagMapper(_ref9){let{expression:expression,map:map}=_ref9;this.tagMappers.push((line=>expression.test(line)?map(line):line))}}const camelCaseKeys=function(attributes){const result={};return Object.keys(attributes).forEach((function(key){var str;result[(str=key,str.toLowerCase().replace(/-(\w)/g,(a=>a[1].toUpperCase())))]=attributes[key]})),result},setHoldBack=function(manifest){const{serverControl:serverControl,targetDuration:targetDuration,partTargetDuration:partTargetDuration}=manifest;if(!serverControl)return;const tag="#EXT-X-SERVER-CONTROL",hb="holdBack",phb="partHoldBack",minTargetDuration=targetDuration&&3*targetDuration,minPartDuration=partTargetDuration&&2*partTargetDuration;targetDuration&&!serverControl.hasOwnProperty(hb)&&(serverControl[hb]=minTargetDuration,this.trigger("info",{message:"".concat(tag," defaulting HOLD-BACK to targetDuration * 3 (").concat(minTargetDuration,").")})),minTargetDuration&&serverControl[hb]<minTargetDuration&&(this.trigger("warn",{message:"".concat(tag," clamping HOLD-BACK (").concat(serverControl[hb],") to targetDuration * 3 (").concat(minTargetDuration,")")}),serverControl[hb]=minTargetDuration),partTargetDuration&&!serverControl.hasOwnProperty(phb)&&(serverControl[phb]=3*partTargetDuration,this.trigger("info",{message:"".concat(tag," defaulting PART-HOLD-BACK to partTargetDuration * 3 (").concat(serverControl[phb],").")})),partTargetDuration&&serverControl[phb]<minPartDuration&&(this.trigger("warn",{message:"".concat(tag," clamping PART-HOLD-BACK (").concat(serverControl[phb],") to partTargetDuration * 2 (").concat(minPartDuration,").")}),serverControl[phb]=minPartDuration)};class Parser extends Stream{constructor(){super(),this.lineStream=new LineStream,this.parseStream=new ParseStream,this.lineStream.pipe(this.parseStream);const self=this,uris=[];let currentMap,key,currentUri={},hasParts=!1;const noop=function(){},defaultMediaGroups={AUDIO:{},VIDEO:{},"CLOSED-CAPTIONS":{},SUBTITLES:{}};let currentTimeline=0;this.manifest={allowCache:!0,discontinuityStarts:[],segments:[]};let lastByterangeEnd=0,lastPartByterangeEnd=0;this.on("end",(()=>{currentUri.uri||!currentUri.parts&&!currentUri.preloadHints||(!currentUri.map&&currentMap&&(currentUri.map=currentMap),!currentUri.key&&key&&(currentUri.key=key),currentUri.timeline||"number"!=typeof currentTimeline||(currentUri.timeline=currentTimeline),this.manifest.preloadSegment=currentUri)})),this.parseStream.on("data",(function(entry){let mediaGroup,rendition;({tag(){({version(){entry.version&&(this.manifest.version=entry.version)},"allow-cache"(){this.manifest.allowCache=entry.allowed,"allowed"in entry||(this.trigger("info",{message:"defaulting allowCache to YES"}),this.manifest.allowCache=!0)},byterange(){const byterange={};"length"in entry&&(currentUri.byterange=byterange,byterange.length=entry.length,"offset"in entry||(entry.offset=lastByterangeEnd)),"offset"in entry&&(currentUri.byterange=byterange,byterange.offset=entry.offset),lastByterangeEnd=byterange.offset+byterange.length},endlist(){this.manifest.endList=!0},inf(){"mediaSequence"in this.manifest||(this.manifest.mediaSequence=0,this.trigger("info",{message:"defaulting media sequence to zero"})),"discontinuitySequence"in this.manifest||(this.manifest.discontinuitySequence=0,this.trigger("info",{message:"defaulting discontinuity sequence to zero"})),entry.duration>0&&(currentUri.duration=entry.duration),0===entry.duration&&(currentUri.duration=.01,this.trigger("info",{message:"updating zero segment duration to a small value"})),this.manifest.segments=uris},key(){if(entry.attributes)if("NONE"!==entry.attributes.METHOD)if(entry.attributes.URI){if("com.apple.streamingkeydelivery"===entry.attributes.KEYFORMAT)return this.manifest.contentProtection=this.manifest.contentProtection||{},void(this.manifest.contentProtection["com.apple.fps.1_0"]={attributes:entry.attributes});if("com.microsoft.playready"===entry.attributes.KEYFORMAT)return this.manifest.contentProtection=this.manifest.contentProtection||{},void(this.manifest.contentProtection["com.microsoft.playready"]={uri:entry.attributes.URI});if("urn:uuid:edef8ba9-79d6-4ace-a3c8-27dcd51d21ed"===entry.attributes.KEYFORMAT){return-1===["SAMPLE-AES","SAMPLE-AES-CTR","SAMPLE-AES-CENC"].indexOf(entry.attributes.METHOD)?void this.trigger("warn",{message:"invalid key method provided for Widevine"}):("SAMPLE-AES-CENC"===entry.attributes.METHOD&&this.trigger("warn",{message:"SAMPLE-AES-CENC is deprecated, please use SAMPLE-AES-CTR instead"}),"data:text/plain;base64,"!==entry.attributes.URI.substring(0,23)?void this.trigger("warn",{message:"invalid key URI provided for Widevine"}):entry.attributes.KEYID&&"0x"===entry.attributes.KEYID.substring(0,2)?(this.manifest.contentProtection=this.manifest.contentProtection||{},void(this.manifest.contentProtection["com.widevine.alpha"]={attributes:{schemeIdUri:entry.attributes.KEYFORMAT,keyId:entry.attributes.KEYID.substring(2)},pssh:decodeB64ToUint8Array$1(entry.attributes.URI.split(",")[1])})):void this.trigger("warn",{message:"invalid key ID provided for Widevine"}))}entry.attributes.METHOD||this.trigger("warn",{message:"defaulting key method to AES-128"}),key={method:entry.attributes.METHOD||"AES-128",uri:entry.attributes.URI},void 0!==entry.attributes.IV&&(key.iv=entry.attributes.IV)}else this.trigger("warn",{message:"ignoring key declaration without URI"});else key=null;else this.trigger("warn",{message:"ignoring key declaration without attribute list"})},"media-sequence"(){isFinite(entry.number)?this.manifest.mediaSequence=entry.number:this.trigger("warn",{message:"ignoring invalid media sequence: "+entry.number})},"discontinuity-sequence"(){isFinite(entry.number)?(this.manifest.discontinuitySequence=entry.number,currentTimeline=entry.number):this.trigger("warn",{message:"ignoring invalid discontinuity sequence: "+entry.number})},"playlist-type"(){/VOD|EVENT/.test(entry.playlistType)?this.manifest.playlistType=entry.playlistType:this.trigger("warn",{message:"ignoring unknown playlist type: "+entry.playlist})},map(){currentMap={},entry.uri&&(currentMap.uri=entry.uri),entry.byterange&&(currentMap.byterange=entry.byterange),key&&(currentMap.key=key)},"stream-inf"(){this.manifest.playlists=uris,this.manifest.mediaGroups=this.manifest.mediaGroups||defaultMediaGroups,entry.attributes?(currentUri.attributes||(currentUri.attributes={}),_extends$1(currentUri.attributes,entry.attributes)):this.trigger("warn",{message:"ignoring empty stream-inf attributes"})},media(){if(this.manifest.mediaGroups=this.manifest.mediaGroups||defaultMediaGroups,!(entry.attributes&&entry.attributes.TYPE&&entry.attributes["GROUP-ID"]&&entry.attributes.NAME))return void this.trigger("warn",{message:"ignoring incomplete or missing media group"});const mediaGroupType=this.manifest.mediaGroups[entry.attributes.TYPE];mediaGroupType[entry.attributes["GROUP-ID"]]=mediaGroupType[entry.attributes["GROUP-ID"]]||{},mediaGroup=mediaGroupType[entry.attributes["GROUP-ID"]],rendition={default:/yes/i.test(entry.attributes.DEFAULT)},rendition.default?rendition.autoselect=!0:rendition.autoselect=/yes/i.test(entry.attributes.AUTOSELECT),entry.attributes.LANGUAGE&&(rendition.language=entry.attributes.LANGUAGE),entry.attributes.URI&&(rendition.uri=entry.attributes.URI),entry.attributes["INSTREAM-ID"]&&(rendition.instreamId=entry.attributes["INSTREAM-ID"]),entry.attributes.CHARACTERISTICS&&(rendition.characteristics=entry.attributes.CHARACTERISTICS),entry.attributes.FORCED&&(rendition.forced=/yes/i.test(entry.attributes.FORCED)),mediaGroup[entry.attributes.NAME]=rendition},discontinuity(){currentTimeline+=1,currentUri.discontinuity=!0,this.manifest.discontinuityStarts.push(uris.length)},"program-date-time"(){void 0===this.manifest.dateTimeString&&(this.manifest.dateTimeString=entry.dateTimeString,this.manifest.dateTimeObject=entry.dateTimeObject),currentUri.dateTimeString=entry.dateTimeString,currentUri.dateTimeObject=entry.dateTimeObject},targetduration(){!isFinite(entry.duration)||entry.duration<0?this.trigger("warn",{message:"ignoring invalid target duration: "+entry.duration}):(this.manifest.targetDuration=entry.duration,setHoldBack.call(this,this.manifest))},start(){entry.attributes&&!isNaN(entry.attributes["TIME-OFFSET"])?this.manifest.start={timeOffset:entry.attributes["TIME-OFFSET"],precise:entry.attributes.PRECISE}:this.trigger("warn",{message:"ignoring start declaration without appropriate attribute list"})},"cue-out"(){currentUri.cueOut=entry.data},"cue-out-cont"(){currentUri.cueOutCont=entry.data},"cue-in"(){currentUri.cueIn=entry.data},skip(){this.manifest.skip=camelCaseKeys(entry.attributes),this.warnOnMissingAttributes_("#EXT-X-SKIP",entry.attributes,["SKIPPED-SEGMENTS"])},part(){hasParts=!0;const segmentIndex=this.manifest.segments.length,part=camelCaseKeys(entry.attributes);currentUri.parts=currentUri.parts||[],currentUri.parts.push(part),part.byterange&&(part.byterange.hasOwnProperty("offset")||(part.byterange.offset=lastPartByterangeEnd),lastPartByterangeEnd=part.byterange.offset+part.byterange.length);const partIndex=currentUri.parts.length-1;this.warnOnMissingAttributes_("#EXT-X-PART #".concat(partIndex," for segment #").concat(segmentIndex),entry.attributes,["URI","DURATION"]),this.manifest.renditionReports&&this.manifest.renditionReports.forEach(((r,i)=>{r.hasOwnProperty("lastPart")||this.trigger("warn",{message:"#EXT-X-RENDITION-REPORT #".concat(i," lacks required attribute(s): LAST-PART")})}))},"server-control"(){const attrs=this.manifest.serverControl=camelCaseKeys(entry.attributes);attrs.hasOwnProperty("canBlockReload")||(attrs.canBlockReload=!1,this.trigger("info",{message:"#EXT-X-SERVER-CONTROL defaulting CAN-BLOCK-RELOAD to false"})),setHoldBack.call(this,this.manifest),attrs.canSkipDateranges&&!attrs.hasOwnProperty("canSkipUntil")&&this.trigger("warn",{message:"#EXT-X-SERVER-CONTROL lacks required attribute CAN-SKIP-UNTIL which is required when CAN-SKIP-DATERANGES is set"})},"preload-hint"(){const segmentIndex=this.manifest.segments.length,hint=camelCaseKeys(entry.attributes),isPart=hint.type&&"PART"===hint.type;currentUri.preloadHints=currentUri.preloadHints||[],currentUri.preloadHints.push(hint),hint.byterange&&(hint.byterange.hasOwnProperty("offset")||(hint.byterange.offset=isPart?lastPartByterangeEnd:0,isPart&&(lastPartByterangeEnd=hint.byterange.offset+hint.byterange.length)));const index=currentUri.preloadHints.length-1;if(this.warnOnMissingAttributes_("#EXT-X-PRELOAD-HINT #".concat(index," for segment #").concat(segmentIndex),entry.attributes,["TYPE","URI"]),hint.type)for(let i=0;i<currentUri.preloadHints.length-1;i++){const otherHint=currentUri.preloadHints[i];otherHint.type&&(otherHint.type===hint.type&&this.trigger("warn",{message:"#EXT-X-PRELOAD-HINT #".concat(index," for segment #").concat(segmentIndex," has the same TYPE ").concat(hint.type," as preload hint #").concat(i)}))}},"rendition-report"(){const report=camelCaseKeys(entry.attributes);this.manifest.renditionReports=this.manifest.renditionReports||[],this.manifest.renditionReports.push(report);const index=this.manifest.renditionReports.length-1,required=["LAST-MSN","URI"];hasParts&&required.push("LAST-PART"),this.warnOnMissingAttributes_("#EXT-X-RENDITION-REPORT #".concat(index),entry.attributes,required)},"part-inf"(){this.manifest.partInf=camelCaseKeys(entry.attributes),this.warnOnMissingAttributes_("#EXT-X-PART-INF",entry.attributes,["PART-TARGET"]),this.manifest.partInf.partTarget&&(this.manifest.partTargetDuration=this.manifest.partInf.partTarget),setHoldBack.call(this,this.manifest)}}[entry.tagType]||noop).call(self)},uri(){currentUri.uri=entry.uri,uris.push(currentUri),this.manifest.targetDuration&&!("duration"in currentUri)&&(this.trigger("warn",{message:"defaulting segment duration to the target duration"}),currentUri.duration=this.manifest.targetDuration),key&&(currentUri.key=key),currentUri.timeline=currentTimeline,currentMap&&(currentUri.map=currentMap),lastPartByterangeEnd=0,currentUri={}},comment(){},custom(){entry.segment?(currentUri.custom=currentUri.custom||{},currentUri.custom[entry.customType]=entry.data):(this.manifest.custom=this.manifest.custom||{},this.manifest.custom[entry.customType]=entry.data)}})[entry.type].call(self)}))}warnOnMissingAttributes_(identifier,attributes,required){const missing=[];required.forEach((function(key){attributes.hasOwnProperty(key)||missing.push(key)})),missing.length&&this.trigger("warn",{message:"".concat(identifier," lacks required attribute(s): ").concat(missing.join(", "))})}push(chunk){this.lineStream.push(chunk)}end(){this.lineStream.push("\n"),this.trigger("end")}addParser(options){this.parseStream.addParser(options)}addTagMapper(options){this.parseStream.addTagMapper(options)}}var a,b,regexs={mp4:/^(av0?1|avc0?[1234]|vp0?9|flac|opus|mp3|mp4a|mp4v|stpp.ttml.im1t)/,webm:/^(vp0?[89]|av0?1|opus|vorbis)/,ogg:/^(vp0?[89]|theora|flac|opus|vorbis)/,video:/^(av0?1|avc0?[1234]|vp0?[89]|hvc1|hev1|theora|mp4v)/,audio:/^(mp4a|flac|vorbis|opus|ac-[34]|ec-3|alac|mp3|speex|aac)/,text:/^(stpp.ttml.im1t)/,muxerVideo:/^(avc0?1)/,muxerAudio:/^(mp4a)/,muxerText:/a^/},mediaTypes=["video","audio","text"],upperMediaTypes=["Video","Audio","Text"],translateLegacyCodec=function(codec){return codec?codec.replace(/avc1\.(\d+)\.(\d+)/i,(function(orig,profile,avcLevel){return"avc1."+("00"+Number(profile).toString(16)).slice(-2)+"00"+("00"+Number(avcLevel).toString(16)).slice(-2)})):codec},parseCodecs=function(codecString){void 0===codecString&&(codecString="");var codecs=codecString.split(","),result=[];return codecs.forEach((function(codec){var codecType;codec=codec.trim(),mediaTypes.forEach((function(name){var match=regexs[name].exec(codec.toLowerCase());if(match&&!(match.length<=1)){codecType=name;var type=codec.substring(0,match[1].length),details=codec.replace(type,"");result.push({type:type,details:details,mediaType:name})}})),codecType||result.push({type:codec,details:"",mediaType:"unknown"})})),result},isAudioCodec=function(codec){return void 0===codec&&(codec=""),regexs.audio.test(codec.trim().toLowerCase())},getMimeForCodec=function(codecString){if(codecString&&"string"==typeof codecString){var codec,codecs=codecString.toLowerCase().split(",").map((function(c){return translateLegacyCodec(c.trim())})),type="video";1===codecs.length&&isAudioCodec(codecs[0])?type="audio":1===codecs.length&&(void 0===(codec=codecs[0])&&(codec=""),regexs.text.test(codec.trim().toLowerCase()))&&(type="application");var container="mp4";return codecs.every((function(c){return regexs.mp4.test(c)}))?container="mp4":codecs.every((function(c){return regexs.webm.test(c)}))?container="webm":codecs.every((function(c){return regexs.ogg.test(c)}))&&(container="ogg"),type+"/"+container+';codecs="'+codecString+'"'}},browserSupportsCodec=function(codecString){return void 0===codecString&&(codecString=""),window.MediaSource&&window.MediaSource.isTypeSupported&&window.MediaSource.isTypeSupported(getMimeForCodec(codecString))||!1},muxerSupportsCodec=function(codecString){return void 0===codecString&&(codecString=""),codecString.toLowerCase().split(",").every((function(codec){codec=codec.trim();for(var i=0;i<upperMediaTypes.length;i++){if(regexs["muxer"+upperMediaTypes[i]].test(codec))return!0}return!1}))},MPEGURL_REGEX=/^(audio|video|application)\/(x-|vnd\.apple\.)?mpegurl/i,DASH_REGEX=/^application\/dash\+xml/i,simpleTypeFromSourceType=function(type){return MPEGURL_REGEX.test(type)?"hls":DASH_REGEX.test(type)?"dash":"application/vnd.videojs.vhs+json"===type?"vhs-json":null},isArrayBufferView=function(obj){return"function"===ArrayBuffer.isView?ArrayBuffer.isView(obj):obj&&obj.buffer instanceof ArrayBuffer},toUint8=function(bytes){return bytes instanceof Uint8Array?bytes:(Array.isArray(bytes)||isArrayBufferView(bytes)||bytes instanceof ArrayBuffer||(bytes="number"!=typeof bytes||"number"==typeof bytes&&bytes!=bytes?0:[bytes]),new Uint8Array(bytes&&bytes.buffer||bytes,bytes&&bytes.byteOffset||0,bytes&&bytes.byteLength||0))},BigInt=window.BigInt||Number,BYTE_TABLE=[BigInt("0x1"),BigInt("0x100"),BigInt("0x10000"),BigInt("0x1000000"),BigInt("0x100000000"),BigInt("0x10000000000"),BigInt("0x1000000000000"),BigInt("0x100000000000000"),BigInt("0x10000000000000000")];a=new Uint16Array([65484]),255===(b=new Uint8Array(a.buffer,a.byteOffset,a.byteLength))[0]||b[0];var bytesToNumber=function(bytes,_temp){var _ref=void 0===_temp?{}:_temp,_ref$signed=_ref.signed,signed=void 0!==_ref$signed&&_ref$signed,_ref$le=_ref.le,le=void 0!==_ref$le&&_ref$le;bytes=toUint8(bytes);var fn=le?"reduce":"reduceRight",number=(bytes[fn]?bytes[fn]:Array.prototype[fn]).call(bytes,(function(total,byte,i){var exponent=le?i:Math.abs(i+1-bytes.length);return total+BigInt(byte)*BYTE_TABLE[exponent]}),BigInt(0));if(signed){var max=BYTE_TABLE[bytes.length]/BigInt(2)-BigInt(1);(number=BigInt(number))>max&&(number-=max,number-=max,number-=BigInt(2))}return Number(number)},numberToBytes=function(number,_temp2){var _ref2$le=(void 0===_temp2?{}:_temp2).le,le=void 0!==_ref2$le&&_ref2$le;("bigint"!=typeof number&&"number"!=typeof number||"number"==typeof number&&number!=number)&&(number=0);for(var byteCount=function(x){return Math.ceil(function(x){return x.toString(2).length}(x)/8)}(number=BigInt(number)),bytes=new Uint8Array(new ArrayBuffer(byteCount)),i=0;i<byteCount;i++){var byteIndex=le?i:Math.abs(i+1-bytes.length);bytes[byteIndex]=Number(number/BYTE_TABLE[i]&BigInt(255)),number<0&&(bytes[byteIndex]=Math.abs(~bytes[byteIndex]),bytes[byteIndex]-=0===i?1:2)}return bytes},stringToBytes=function(string,stringIsBytes){if("string"!=typeof string&&string&&"function"==typeof string.toString&&(string=string.toString()),"string"!=typeof string)return new Uint8Array;stringIsBytes||(string=unescape(encodeURIComponent(string)));for(var view=new Uint8Array(string.length),i=0;i<string.length;i++)view[i]=string.charCodeAt(i);return view},bytesMatch=function(a,b,_temp3){var _ref3=void 0===_temp3?{}:_temp3,_ref3$offset=_ref3.offset,offset=void 0===_ref3$offset?0:_ref3$offset,_ref3$mask=_ref3.mask,mask=void 0===_ref3$mask?[]:_ref3$mask;a=toUint8(a);var fn=(b=toUint8(b)).every?b.every:Array.prototype.every;return b.length&&a.length-offset>=b.length&&fn.call(b,(function(bByte,i){return bByte===(mask[i]?mask[i]&a[offset+i]:a[offset+i])}))},resolveUrl$1=function(baseUrl,relativeUrl){if(/^[a-z]+:/i.test(relativeUrl))return relativeUrl;/^data:/.test(baseUrl)&&(baseUrl=window.location&&window.location.href||"");var nativeURL="function"==typeof window.URL,protocolLess=/^\/\//.test(baseUrl),removeLocation=!window.location&&!/\/\//i.test(baseUrl);if(nativeURL?baseUrl=new window.URL(baseUrl,window.location||"http://example.com"):/\/\//i.test(baseUrl)||(baseUrl=urlToolkit.buildAbsoluteURL(window.location&&window.location.href||"",baseUrl)),nativeURL){var newUrl=new URL(relativeUrl,baseUrl);return removeLocation?newUrl.href.slice("http://example.com".length):protocolLess?newUrl.href.slice(newUrl.protocol.length):newUrl.href}return urlToolkit.buildAbsoluteURL(baseUrl,relativeUrl)};function decodeB64ToUint8Array(b64Text){for(var s,decodedString=(s=b64Text,window.atob?window.atob(s):Buffer.from(s,"base64").toString("binary")),array=new Uint8Array(decodedString.length),i=0;i<decodedString.length;i++)array[i]=decodedString.charCodeAt(i);return array}function freeze(object,oc){return void 0===oc&&(oc=Object),oc&&"function"==typeof oc.freeze?oc.freeze(object):object}var MIME_TYPE=freeze({HTML:"text/html",isHTML:function(value){return value===MIME_TYPE.HTML},XML_APPLICATION:"application/xml",XML_TEXT:"text/xml",XML_XHTML_APPLICATION:"application/xhtml+xml",XML_SVG_IMAGE:"image/svg+xml"}),NAMESPACE$3=freeze({HTML:"http://www.w3.org/1999/xhtml",isHTML:function(uri){return uri===NAMESPACE$3.HTML},SVG:"http://www.w3.org/2000/svg",XML:"http://www.w3.org/XML/1998/namespace",XMLNS:"http://www.w3.org/2000/xmlns/"}),conventions={assign:function(target,source){if(null===target||"object"!=typeof target)throw new TypeError("target is not an object");for(var key in source)Object.prototype.hasOwnProperty.call(source,key)&&(target[key]=source[key]);return target},find:function(list,predicate,ac){if(void 0===ac&&(ac=Array.prototype),list&&"function"==typeof ac.find)return ac.find.call(list,predicate);for(var i=0;i<list.length;i++)if(Object.prototype.hasOwnProperty.call(list,i)){var item=list[i];if(predicate.call(void 0,item,i,list))return item}},freeze:freeze,MIME_TYPE:MIME_TYPE,NAMESPACE:NAMESPACE$3},find=conventions.find,NAMESPACE$2=conventions.NAMESPACE;function notEmptyString(input){return""!==input}function orderedSetReducer(current,element){return current.hasOwnProperty(element)||(current[element]=!0),current}function toOrderedSet(input){if(!input)return[];var list=function(input){return input?input.split(/[\t\n\f\r ]+/).filter(notEmptyString):[]}(input);return Object.keys(list.reduce(orderedSetReducer,{}))}function copy(src,dest){for(var p in src)Object.prototype.hasOwnProperty.call(src,p)&&(dest[p]=src[p])}function _extends(Class,Super){var pt=Class.prototype;if(!(pt instanceof Super)){function t(){}t.prototype=Super.prototype,copy(pt,t=new t),Class.prototype=pt=t}pt.constructor!=Class&&("function"!=typeof Class&&console.error("unknown Class:"+Class),pt.constructor=Class)}var NodeType={},ELEMENT_NODE=NodeType.ELEMENT_NODE=1,ATTRIBUTE_NODE=NodeType.ATTRIBUTE_NODE=2,TEXT_NODE=NodeType.TEXT_NODE=3,CDATA_SECTION_NODE=NodeType.CDATA_SECTION_NODE=4,ENTITY_REFERENCE_NODE=NodeType.ENTITY_REFERENCE_NODE=5,ENTITY_NODE=NodeType.ENTITY_NODE=6,PROCESSING_INSTRUCTION_NODE=NodeType.PROCESSING_INSTRUCTION_NODE=7,COMMENT_NODE=NodeType.COMMENT_NODE=8,DOCUMENT_NODE=NodeType.DOCUMENT_NODE=9,DOCUMENT_TYPE_NODE=NodeType.DOCUMENT_TYPE_NODE=10,DOCUMENT_FRAGMENT_NODE=NodeType.DOCUMENT_FRAGMENT_NODE=11,NOTATION_NODE=NodeType.NOTATION_NODE=12,ExceptionCode={},ExceptionMessage={};ExceptionCode.INDEX_SIZE_ERR=(ExceptionMessage[1]="Index size error",1),ExceptionCode.DOMSTRING_SIZE_ERR=(ExceptionMessage[2]="DOMString size error",2);var HIERARCHY_REQUEST_ERR=ExceptionCode.HIERARCHY_REQUEST_ERR=(ExceptionMessage[3]="Hierarchy request error",3);ExceptionCode.WRONG_DOCUMENT_ERR=(ExceptionMessage[4]="Wrong document",4),ExceptionCode.INVALID_CHARACTER_ERR=(ExceptionMessage[5]="Invalid character",5),ExceptionCode.NO_DATA_ALLOWED_ERR=(ExceptionMessage[6]="No data allowed",6),ExceptionCode.NO_MODIFICATION_ALLOWED_ERR=(ExceptionMessage[7]="No modification allowed",7);var NOT_FOUND_ERR=ExceptionCode.NOT_FOUND_ERR=(ExceptionMessage[8]="Not found",8);ExceptionCode.NOT_SUPPORTED_ERR=(ExceptionMessage[9]="Not supported",9);var INUSE_ATTRIBUTE_ERR=ExceptionCode.INUSE_ATTRIBUTE_ERR=(ExceptionMessage[10]="Attribute in use",10);function DOMException(code,message){if(message instanceof Error)var error=message;else error=this,Error.call(this,ExceptionMessage[code]),this.message=ExceptionMessage[code],Error.captureStackTrace&&Error.captureStackTrace(this,DOMException);return error.code=code,message&&(this.message=this.message+": "+message),error}function NodeList(){}function LiveNodeList(node,refresh){this._node=node,this._refresh=refresh,_updateLiveList(this)}function _updateLiveList(list){var inc=list._node._inc||list._node.ownerDocument._inc;if(list._inc!=inc){var ls=list._refresh(list._node);__set__(list,"length",ls.length),copy(ls,list),list._inc=inc}}function NamedNodeMap(){}function _findNodeIndex(list,node){for(var i=list.length;i--;)if(list[i]===node)return i}function _addNamedNode(el,list,newAttr,oldAttr){if(oldAttr?list[_findNodeIndex(list,oldAttr)]=newAttr:list[list.length++]=newAttr,el){newAttr.ownerElement=el;var doc=el.ownerDocument;doc&&(oldAttr&&_onRemoveAttribute(doc,el,oldAttr),function(doc,el,newAttr){doc&&doc._inc++,newAttr.namespaceURI===NAMESPACE$2.XMLNS&&(el._nsMap[newAttr.prefix?newAttr.localName:""]=newAttr.value)}(doc,el,newAttr))}}function _removeNamedNode(el,list,attr){var i=_findNodeIndex(list,attr);if(!(i>=0))throw new DOMException(NOT_FOUND_ERR,new Error(el.tagName+"@"+attr));for(var lastIndex=list.length-1;i<lastIndex;)list[i]=list[++i];if(list.length=lastIndex,el){var doc=el.ownerDocument;doc&&(_onRemoveAttribute(doc,el,attr),attr.ownerElement=null)}}function DOMImplementation$1(){}function Node(){}function _xmlEncoder(c){return("<"==c?"&lt;":">"==c&&"&gt;")||"&"==c&&"&amp;"||'"'==c&&"&quot;"||"&#"+c.charCodeAt()+";"}function _visitNode(node,callback){if(callback(node))return!0;if(node=node.firstChild)do{if(_visitNode(node,callback))return!0}while(node=node.nextSibling)}function Document(){this.ownerDocument=this}function _onRemoveAttribute(doc,el,newAttr,remove){doc&&doc._inc++,newAttr.namespaceURI===NAMESPACE$2.XMLNS&&delete el._nsMap[newAttr.prefix?newAttr.localName:""]}function _onUpdateChild(doc,el,newChild){if(doc&&doc._inc){doc._inc++;var cs=el.childNodes;if(newChild)cs[cs.length++]=newChild;else{for(var child=el.firstChild,i=0;child;)cs[i++]=child,child=child.nextSibling;cs.length=i,delete cs[cs.length]}}}function _removeChild(parentNode,child){var previous=child.previousSibling,next=child.nextSibling;return previous?previous.nextSibling=next:parentNode.firstChild=next,next?next.previousSibling=previous:parentNode.lastChild=previous,child.parentNode=null,child.previousSibling=null,child.nextSibling=null,_onUpdateChild(parentNode.ownerDocument,parentNode),child}function isDocTypeNode(node){return node&&node.nodeType===Node.DOCUMENT_TYPE_NODE}function isElementNode(node){return node&&node.nodeType===Node.ELEMENT_NODE}function isTextNode(node){return node&&node.nodeType===Node.TEXT_NODE}function isElementInsertionPossible(doc,child){var parentChildNodes=doc.childNodes||[];if(find(parentChildNodes,isElementNode)||isDocTypeNode(child))return!1;var docTypeNode=find(parentChildNodes,isDocTypeNode);return!(child&&docTypeNode&&parentChildNodes.indexOf(docTypeNode)>parentChildNodes.indexOf(child))}function isElementReplacementPossible(doc,child){var parentChildNodes=doc.childNodes||[];if(find(parentChildNodes,(function(node){return isElementNode(node)&&node!==child})))return!1;var docTypeNode=find(parentChildNodes,isDocTypeNode);return!(child&&docTypeNode&&parentChildNodes.indexOf(docTypeNode)>parentChildNodes.indexOf(child))}function assertPreInsertionValidity1to5(parent,node,child){if(!function(node){return node&&(node.nodeType===Node.DOCUMENT_NODE||node.nodeType===Node.DOCUMENT_FRAGMENT_NODE||node.nodeType===Node.ELEMENT_NODE)}(parent))throw new DOMException(HIERARCHY_REQUEST_ERR,"Unexpected parent node type "+parent.nodeType);if(child&&child.parentNode!==parent)throw new DOMException(NOT_FOUND_ERR,"child not in parent");if(!function(node){return node&&(isElementNode(node)||isTextNode(node)||isDocTypeNode(node)||node.nodeType===Node.DOCUMENT_FRAGMENT_NODE||node.nodeType===Node.COMMENT_NODE||node.nodeType===Node.PROCESSING_INSTRUCTION_NODE)}(node)||isDocTypeNode(node)&&parent.nodeType!==Node.DOCUMENT_NODE)throw new DOMException(HIERARCHY_REQUEST_ERR,"Unexpected node type "+node.nodeType+" for parent node type "+parent.nodeType)}function assertPreInsertionValidityInDocument(parent,node,child){var parentChildNodes=parent.childNodes||[],nodeChildNodes=node.childNodes||[];if(node.nodeType===Node.DOCUMENT_FRAGMENT_NODE){var nodeChildElements=nodeChildNodes.filter(isElementNode);if(nodeChildElements.length>1||find(nodeChildNodes,isTextNode))throw new DOMException(HIERARCHY_REQUEST_ERR,"More than one element or text in fragment");if(1===nodeChildElements.length&&!isElementInsertionPossible(parent,child))throw new DOMException(HIERARCHY_REQUEST_ERR,"Element in fragment can not be inserted before doctype")}if(isElementNode(node)&&!isElementInsertionPossible(parent,child))throw new DOMException(HIERARCHY_REQUEST_ERR,"Only one element can be added and only after doctype");if(isDocTypeNode(node)){if(find(parentChildNodes,isDocTypeNode))throw new DOMException(HIERARCHY_REQUEST_ERR,"Only one doctype is allowed");var parentElementChild=find(parentChildNodes,isElementNode);if(child&&parentChildNodes.indexOf(parentElementChild)<parentChildNodes.indexOf(child))throw new DOMException(HIERARCHY_REQUEST_ERR,"Doctype can only be inserted before an element");if(!child&&parentElementChild)throw new DOMException(HIERARCHY_REQUEST_ERR,"Doctype can not be appended since element is present")}}function assertPreReplacementValidityInDocument(parent,node,child){var parentChildNodes=parent.childNodes||[],nodeChildNodes=node.childNodes||[];if(node.nodeType===Node.DOCUMENT_FRAGMENT_NODE){var nodeChildElements=nodeChildNodes.filter(isElementNode);if(nodeChildElements.length>1||find(nodeChildNodes,isTextNode))throw new DOMException(HIERARCHY_REQUEST_ERR,"More than one element or text in fragment");if(1===nodeChildElements.length&&!isElementReplacementPossible(parent,child))throw new DOMException(HIERARCHY_REQUEST_ERR,"Element in fragment can not be inserted before doctype")}if(isElementNode(node)&&!isElementReplacementPossible(parent,child))throw new DOMException(HIERARCHY_REQUEST_ERR,"Only one element can be added and only after doctype");if(isDocTypeNode(node)){function hasDoctypeChildThatIsNotChild(node){return isDocTypeNode(node)&&node!==child}if(find(parentChildNodes,hasDoctypeChildThatIsNotChild))throw new DOMException(HIERARCHY_REQUEST_ERR,"Only one doctype is allowed");var parentElementChild=find(parentChildNodes,isElementNode);if(child&&parentChildNodes.indexOf(parentElementChild)<parentChildNodes.indexOf(child))throw new DOMException(HIERARCHY_REQUEST_ERR,"Doctype can only be inserted before an element")}}function _insertBefore(parent,node,child,_inDocumentAssertion){assertPreInsertionValidity1to5(parent,node,child),parent.nodeType===Node.DOCUMENT_NODE&&(_inDocumentAssertion||assertPreInsertionValidityInDocument)(parent,node,child);var cp=node.parentNode;if(cp&&cp.removeChild(node),node.nodeType===DOCUMENT_FRAGMENT_NODE){var newFirst=node.firstChild;if(null==newFirst)return node;var newLast=node.lastChild}else newFirst=newLast=node;var pre=child?child.previousSibling:parent.lastChild;newFirst.previousSibling=pre,newLast.nextSibling=child,pre?pre.nextSibling=newFirst:parent.firstChild=newFirst,null==child?parent.lastChild=newLast:child.previousSibling=newLast;do{newFirst.parentNode=parent}while(newFirst!==newLast&&(newFirst=newFirst.nextSibling));return _onUpdateChild(parent.ownerDocument||parent,parent),node.nodeType==DOCUMENT_FRAGMENT_NODE&&(node.firstChild=node.lastChild=null),node}function Element(){this._nsMap={}}function Attr(){}function CharacterData(){}function Text(){}function Comment(){}function CDATASection(){}function DocumentType(){}function Notation(){}function Entity(){}function EntityReference(){}function DocumentFragment(){}function ProcessingInstruction(){}function XMLSerializer(){}function nodeSerializeToString(isHtml,nodeFilter){var buf=[],refNode=9==this.nodeType&&this.documentElement||this,prefix=refNode.prefix,uri=refNode.namespaceURI;if(uri&&null==prefix&&null==(prefix=refNode.lookupPrefix(uri)))var visibleNamespaces=[{namespace:uri,prefix:null}];return serializeToString(this,buf,isHtml,nodeFilter,visibleNamespaces),buf.join("")}function needNamespaceDefine(node,isHTML,visibleNamespaces){var prefix=node.prefix||"",uri=node.namespaceURI;if(!uri)return!1;if("xml"===prefix&&uri===NAMESPACE$2.XML||uri===NAMESPACE$2.XMLNS)return!1;for(var i=visibleNamespaces.length;i--;){var ns=visibleNamespaces[i];if(ns.prefix===prefix)return ns.namespace!==uri}return!0}function addSerializedAttribute(buf,qualifiedName,value){buf.push(" ",qualifiedName,'="',value.replace(/[<>&"\t\n\r]/g,_xmlEncoder),'"')}function serializeToString(node,buf,isHTML,nodeFilter,visibleNamespaces){if(visibleNamespaces||(visibleNamespaces=[]),nodeFilter){if(!(node=nodeFilter(node)))return;if("string"==typeof node)return void buf.push(node)}switch(node.nodeType){case ELEMENT_NODE:var attrs=node.attributes,len=attrs.length,child=node.firstChild,nodeName=node.tagName,prefixedNodeName=nodeName;if(!(isHTML=NAMESPACE$2.isHTML(node.namespaceURI)||isHTML)&&!node.prefix&&node.namespaceURI){for(var defaultNS,ai=0;ai<attrs.length;ai++)if("xmlns"===attrs.item(ai).name){defaultNS=attrs.item(ai).value;break}if(!defaultNS)for(var nsi=visibleNamespaces.length-1;nsi>=0;nsi--){if(""===(namespace=visibleNamespaces[nsi]).prefix&&namespace.namespace===node.namespaceURI){defaultNS=namespace.namespace;break}}if(defaultNS!==node.namespaceURI)for(nsi=visibleNamespaces.length-1;nsi>=0;nsi--){var namespace;if((namespace=visibleNamespaces[nsi]).namespace===node.namespaceURI){namespace.prefix&&(prefixedNodeName=namespace.prefix+":"+nodeName);break}}}buf.push("<",prefixedNodeName);for(var i=0;i<len;i++){"xmlns"==(attr=attrs.item(i)).prefix?visibleNamespaces.push({prefix:attr.localName,namespace:attr.value}):"xmlns"==attr.nodeName&&visibleNamespaces.push({prefix:"",namespace:attr.value})}for(i=0;i<len;i++){var attr,prefix,uri;if(needNamespaceDefine(attr=attrs.item(i),0,visibleNamespaces))addSerializedAttribute(buf,(prefix=attr.prefix||"")?"xmlns:"+prefix:"xmlns",uri=attr.namespaceURI),visibleNamespaces.push({prefix:prefix,namespace:uri});serializeToString(attr,buf,isHTML,nodeFilter,visibleNamespaces)}if(nodeName===prefixedNodeName&&needNamespaceDefine(node,0,visibleNamespaces))addSerializedAttribute(buf,(prefix=node.prefix||"")?"xmlns:"+prefix:"xmlns",uri=node.namespaceURI),visibleNamespaces.push({prefix:prefix,namespace:uri});if(child||isHTML&&!/^(?:meta|link|img|br|hr|input)$/i.test(nodeName)){if(buf.push(">"),isHTML&&/^script$/i.test(nodeName))for(;child;)child.data?buf.push(child.data):serializeToString(child,buf,isHTML,nodeFilter,visibleNamespaces.slice()),child=child.nextSibling;else for(;child;)serializeToString(child,buf,isHTML,nodeFilter,visibleNamespaces.slice()),child=child.nextSibling;buf.push("</",prefixedNodeName,">")}else buf.push("/>");return;case DOCUMENT_NODE:case DOCUMENT_FRAGMENT_NODE:for(child=node.firstChild;child;)serializeToString(child,buf,isHTML,nodeFilter,visibleNamespaces.slice()),child=child.nextSibling;return;case ATTRIBUTE_NODE:return addSerializedAttribute(buf,node.name,node.value);case TEXT_NODE:return buf.push(node.data.replace(/[<&>]/g,_xmlEncoder));case CDATA_SECTION_NODE:return buf.push("<![CDATA[",node.data,"]]>");case COMMENT_NODE:return buf.push("\x3c!--",node.data,"--\x3e");case DOCUMENT_TYPE_NODE:var pubid=node.publicId,sysid=node.systemId;if(buf.push("<!DOCTYPE ",node.name),pubid)buf.push(" PUBLIC ",pubid),sysid&&"."!=sysid&&buf.push(" ",sysid),buf.push(">");else if(sysid&&"."!=sysid)buf.push(" SYSTEM ",sysid,">");else{var sub=node.internalSubset;sub&&buf.push(" [",sub,"]"),buf.push(">")}return;case PROCESSING_INSTRUCTION_NODE:return buf.push("<?",node.target," ",node.data,"?>");case ENTITY_REFERENCE_NODE:return buf.push("&",node.nodeName,";");default:buf.push("??",node.nodeName)}}function importNode(doc,node,deep){var node2;switch(node.nodeType){case ELEMENT_NODE:(node2=node.cloneNode(!1)).ownerDocument=doc;case DOCUMENT_FRAGMENT_NODE:break;case ATTRIBUTE_NODE:deep=!0}if(node2||(node2=node.cloneNode(!1)),node2.ownerDocument=doc,node2.parentNode=null,deep)for(var child=node.firstChild;child;)node2.appendChild(importNode(doc,child,deep)),child=child.nextSibling;return node2}function cloneNode(doc,node,deep){var node2=new node.constructor;for(var n in node)if(Object.prototype.hasOwnProperty.call(node,n)){var v=node[n];"object"!=typeof v&&v!=node2[n]&&(node2[n]=v)}switch(node.childNodes&&(node2.childNodes=new NodeList),node2.ownerDocument=doc,node2.nodeType){case ELEMENT_NODE:var attrs=node.attributes,attrs2=node2.attributes=new NamedNodeMap,len=attrs.length;attrs2._ownerElement=node2;for(var i=0;i<len;i++)node2.setAttributeNode(cloneNode(doc,attrs.item(i),!0));break;case ATTRIBUTE_NODE:deep=!0}if(deep)for(var child=node.firstChild;child;)node2.appendChild(cloneNode(doc,child,deep)),child=child.nextSibling;return node2}function __set__(object,key,value){object[key]=value}ExceptionCode.INVALID_STATE_ERR=(ExceptionMessage[11]="Invalid state",11),ExceptionCode.SYNTAX_ERR=(ExceptionMessage[12]="Syntax error",12),ExceptionCode.INVALID_MODIFICATION_ERR=(ExceptionMessage[13]="Invalid modification",13),ExceptionCode.NAMESPACE_ERR=(ExceptionMessage[14]="Invalid namespace",14),ExceptionCode.INVALID_ACCESS_ERR=(ExceptionMessage[15]="Invalid access",15),DOMException.prototype=Error.prototype,copy(ExceptionCode,DOMException),NodeList.prototype={length:0,item:function(index){return this[index]||null},toString:function(isHTML,nodeFilter){for(var buf=[],i=0;i<this.length;i++)serializeToString(this[i],buf,isHTML,nodeFilter);return buf.join("")},filter:function(predicate){return Array.prototype.filter.call(this,predicate)},indexOf:function(item){return Array.prototype.indexOf.call(this,item)}},LiveNodeList.prototype.item=function(i){return _updateLiveList(this),this[i]},_extends(LiveNodeList,NodeList),NamedNodeMap.prototype={length:0,item:NodeList.prototype.item,getNamedItem:function(key){for(var i=this.length;i--;){var attr=this[i];if(attr.nodeName==key)return attr}},setNamedItem:function(attr){var el=attr.ownerElement;if(el&&el!=this._ownerElement)throw new DOMException(INUSE_ATTRIBUTE_ERR);var oldAttr=this.getNamedItem(attr.nodeName);return _addNamedNode(this._ownerElement,this,attr,oldAttr),oldAttr},setNamedItemNS:function(attr){var oldAttr,el=attr.ownerElement;if(el&&el!=this._ownerElement)throw new DOMException(INUSE_ATTRIBUTE_ERR);return oldAttr=this.getNamedItemNS(attr.namespaceURI,attr.localName),_addNamedNode(this._ownerElement,this,attr,oldAttr),oldAttr},removeNamedItem:function(key){var attr=this.getNamedItem(key);return _removeNamedNode(this._ownerElement,this,attr),attr},removeNamedItemNS:function(namespaceURI,localName){var attr=this.getNamedItemNS(namespaceURI,localName);return _removeNamedNode(this._ownerElement,this,attr),attr},getNamedItemNS:function(namespaceURI,localName){for(var i=this.length;i--;){var node=this[i];if(node.localName==localName&&node.namespaceURI==namespaceURI)return node}return null}},DOMImplementation$1.prototype={hasFeature:function(feature,version){return!0},createDocument:function(namespaceURI,qualifiedName,doctype){var doc=new Document;if(doc.implementation=this,doc.childNodes=new NodeList,doc.doctype=doctype||null,doctype&&doc.appendChild(doctype),qualifiedName){var root=doc.createElementNS(namespaceURI,qualifiedName);doc.appendChild(root)}return doc},createDocumentType:function(qualifiedName,publicId,systemId){var node=new DocumentType;return node.name=qualifiedName,node.nodeName=qualifiedName,node.publicId=publicId||"",node.systemId=systemId||"",node}},Node.prototype={firstChild:null,lastChild:null,previousSibling:null,nextSibling:null,attributes:null,parentNode:null,childNodes:null,ownerDocument:null,nodeValue:null,namespaceURI:null,prefix:null,localName:null,insertBefore:function(newChild,refChild){return _insertBefore(this,newChild,refChild)},replaceChild:function(newChild,oldChild){_insertBefore(this,newChild,oldChild,assertPreReplacementValidityInDocument),oldChild&&this.removeChild(oldChild)},removeChild:function(oldChild){return _removeChild(this,oldChild)},appendChild:function(newChild){return this.insertBefore(newChild,null)},hasChildNodes:function(){return null!=this.firstChild},cloneNode:function(deep){return cloneNode(this.ownerDocument||this,this,deep)},normalize:function(){for(var child=this.firstChild;child;){var next=child.nextSibling;next&&next.nodeType==TEXT_NODE&&child.nodeType==TEXT_NODE?(this.removeChild(next),child.appendData(next.data)):(child.normalize(),child=next)}},isSupported:function(feature,version){return this.ownerDocument.implementation.hasFeature(feature,version)},hasAttributes:function(){return this.attributes.length>0},lookupPrefix:function(namespaceURI){for(var el=this;el;){var map=el._nsMap;if(map)for(var n in map)if(Object.prototype.hasOwnProperty.call(map,n)&&map[n]===namespaceURI)return n;el=el.nodeType==ATTRIBUTE_NODE?el.ownerDocument:el.parentNode}return null},lookupNamespaceURI:function(prefix){for(var el=this;el;){var map=el._nsMap;if(map&&Object.prototype.hasOwnProperty.call(map,prefix))return map[prefix];el=el.nodeType==ATTRIBUTE_NODE?el.ownerDocument:el.parentNode}return null},isDefaultNamespace:function(namespaceURI){return null==this.lookupPrefix(namespaceURI)}},copy(NodeType,Node),copy(NodeType,Node.prototype),Document.prototype={nodeName:"#document",nodeType:DOCUMENT_NODE,doctype:null,documentElement:null,_inc:1,insertBefore:function(newChild,refChild){if(newChild.nodeType==DOCUMENT_FRAGMENT_NODE){for(var child=newChild.firstChild;child;){var next=child.nextSibling;this.insertBefore(child,refChild),child=next}return newChild}return _insertBefore(this,newChild,refChild),newChild.ownerDocument=this,null===this.documentElement&&newChild.nodeType===ELEMENT_NODE&&(this.documentElement=newChild),newChild},removeChild:function(oldChild){return this.documentElement==oldChild&&(this.documentElement=null),_removeChild(this,oldChild)},replaceChild:function(newChild,oldChild){_insertBefore(this,newChild,oldChild,assertPreReplacementValidityInDocument),newChild.ownerDocument=this,oldChild&&this.removeChild(oldChild),isElementNode(newChild)&&(this.documentElement=newChild)},importNode:function(importedNode,deep){return importNode(this,importedNode,deep)},getElementById:function(id){var rtv=null;return _visitNode(this.documentElement,(function(node){if(node.nodeType==ELEMENT_NODE&&node.getAttribute("id")==id)return rtv=node,!0})),rtv},getElementsByClassName:function(classNames){var classNamesSet=toOrderedSet(classNames);return new LiveNodeList(this,(function(base){var ls=[];return classNamesSet.length>0&&_visitNode(base.documentElement,(function(node){if(node!==base&&node.nodeType===ELEMENT_NODE){var nodeClassNames=node.getAttribute("class");if(nodeClassNames){var matches=classNames===nodeClassNames;if(!matches){var nodeClassNamesSet=toOrderedSet(nodeClassNames);matches=classNamesSet.every((list=nodeClassNamesSet,function(element){return list&&-1!==list.indexOf(element)}))}matches&&ls.push(node)}}var list})),ls}))},createElement:function(tagName){var node=new Element;return node.ownerDocument=this,node.nodeName=tagName,node.tagName=tagName,node.localName=tagName,node.childNodes=new NodeList,(node.attributes=new NamedNodeMap)._ownerElement=node,node},createDocumentFragment:function(){var node=new DocumentFragment;return node.ownerDocument=this,node.childNodes=new NodeList,node},createTextNode:function(data){var node=new Text;return node.ownerDocument=this,node.appendData(data),node},createComment:function(data){var node=new Comment;return node.ownerDocument=this,node.appendData(data),node},createCDATASection:function(data){var node=new CDATASection;return node.ownerDocument=this,node.appendData(data),node},createProcessingInstruction:function(target,data){var node=new ProcessingInstruction;return node.ownerDocument=this,node.tagName=node.target=target,node.nodeValue=node.data=data,node},createAttribute:function(name){var node=new Attr;return node.ownerDocument=this,node.name=name,node.nodeName=name,node.localName=name,node.specified=!0,node},createEntityReference:function(name){var node=new EntityReference;return node.ownerDocument=this,node.nodeName=name,node},createElementNS:function(namespaceURI,qualifiedName){var node=new Element,pl=qualifiedName.split(":"),attrs=node.attributes=new NamedNodeMap;return node.childNodes=new NodeList,node.ownerDocument=this,node.nodeName=qualifiedName,node.tagName=qualifiedName,node.namespaceURI=namespaceURI,2==pl.length?(node.prefix=pl[0],node.localName=pl[1]):node.localName=qualifiedName,attrs._ownerElement=node,node},createAttributeNS:function(namespaceURI,qualifiedName){var node=new Attr,pl=qualifiedName.split(":");return node.ownerDocument=this,node.nodeName=qualifiedName,node.name=qualifiedName,node.namespaceURI=namespaceURI,node.specified=!0,2==pl.length?(node.prefix=pl[0],node.localName=pl[1]):node.localName=qualifiedName,node}},_extends(Document,Node),Element.prototype={nodeType:ELEMENT_NODE,hasAttribute:function(name){return null!=this.getAttributeNode(name)},getAttribute:function(name){var attr=this.getAttributeNode(name);return attr&&attr.value||""},getAttributeNode:function(name){return this.attributes.getNamedItem(name)},setAttribute:function(name,value){var attr=this.ownerDocument.createAttribute(name);attr.value=attr.nodeValue=""+value,this.setAttributeNode(attr)},removeAttribute:function(name){var attr=this.getAttributeNode(name);attr&&this.removeAttributeNode(attr)},appendChild:function(newChild){return newChild.nodeType===DOCUMENT_FRAGMENT_NODE?this.insertBefore(newChild,null):function(parentNode,newChild){return newChild.parentNode&&newChild.parentNode.removeChild(newChild),newChild.parentNode=parentNode,newChild.previousSibling=parentNode.lastChild,newChild.nextSibling=null,newChild.previousSibling?newChild.previousSibling.nextSibling=newChild:parentNode.firstChild=newChild,parentNode.lastChild=newChild,_onUpdateChild(parentNode.ownerDocument,parentNode,newChild),newChild}(this,newChild)},setAttributeNode:function(newAttr){return this.attributes.setNamedItem(newAttr)},setAttributeNodeNS:function(newAttr){return this.attributes.setNamedItemNS(newAttr)},removeAttributeNode:function(oldAttr){return this.attributes.removeNamedItem(oldAttr.nodeName)},removeAttributeNS:function(namespaceURI,localName){var old=this.getAttributeNodeNS(namespaceURI,localName);old&&this.removeAttributeNode(old)},hasAttributeNS:function(namespaceURI,localName){return null!=this.getAttributeNodeNS(namespaceURI,localName)},getAttributeNS:function(namespaceURI,localName){var attr=this.getAttributeNodeNS(namespaceURI,localName);return attr&&attr.value||""},setAttributeNS:function(namespaceURI,qualifiedName,value){var attr=this.ownerDocument.createAttributeNS(namespaceURI,qualifiedName);attr.value=attr.nodeValue=""+value,this.setAttributeNode(attr)},getAttributeNodeNS:function(namespaceURI,localName){return this.attributes.getNamedItemNS(namespaceURI,localName)},getElementsByTagName:function(tagName){return new LiveNodeList(this,(function(base){var ls=[];return _visitNode(base,(function(node){node===base||node.nodeType!=ELEMENT_NODE||"*"!==tagName&&node.tagName!=tagName||ls.push(node)})),ls}))},getElementsByTagNameNS:function(namespaceURI,localName){return new LiveNodeList(this,(function(base){var ls=[];return _visitNode(base,(function(node){node===base||node.nodeType!==ELEMENT_NODE||"*"!==namespaceURI&&node.namespaceURI!==namespaceURI||"*"!==localName&&node.localName!=localName||ls.push(node)})),ls}))}},Document.prototype.getElementsByTagName=Element.prototype.getElementsByTagName,Document.prototype.getElementsByTagNameNS=Element.prototype.getElementsByTagNameNS,_extends(Element,Node),Attr.prototype.nodeType=ATTRIBUTE_NODE,_extends(Attr,Node),CharacterData.prototype={data:"",substringData:function(offset,count){return this.data.substring(offset,offset+count)},appendData:function(text){text=this.data+text,this.nodeValue=this.data=text,this.length=text.length},insertData:function(offset,text){this.replaceData(offset,0,text)},appendChild:function(newChild){throw new Error(ExceptionMessage[HIERARCHY_REQUEST_ERR])},deleteData:function(offset,count){this.replaceData(offset,count,"")},replaceData:function(offset,count,text){text=this.data.substring(0,offset)+text+this.data.substring(offset+count),this.nodeValue=this.data=text,this.length=text.length}},_extends(CharacterData,Node),Text.prototype={nodeName:"#text",nodeType:TEXT_NODE,splitText:function(offset){var text=this.data,newText=text.substring(offset);text=text.substring(0,offset),this.data=this.nodeValue=text,this.length=text.length;var newNode=this.ownerDocument.createTextNode(newText);return this.parentNode&&this.parentNode.insertBefore(newNode,this.nextSibling),newNode}},_extends(Text,CharacterData),Comment.prototype={nodeName:"#comment",nodeType:COMMENT_NODE},_extends(Comment,CharacterData),CDATASection.prototype={nodeName:"#cdata-section",nodeType:CDATA_SECTION_NODE},_extends(CDATASection,CharacterData),DocumentType.prototype.nodeType=DOCUMENT_TYPE_NODE,_extends(DocumentType,Node),Notation.prototype.nodeType=NOTATION_NODE,_extends(Notation,Node),Entity.prototype.nodeType=ENTITY_NODE,_extends(Entity,Node),EntityReference.prototype.nodeType=ENTITY_REFERENCE_NODE,_extends(EntityReference,Node),DocumentFragment.prototype.nodeName="#document-fragment",DocumentFragment.prototype.nodeType=DOCUMENT_FRAGMENT_NODE,_extends(DocumentFragment,Node),ProcessingInstruction.prototype.nodeType=PROCESSING_INSTRUCTION_NODE,_extends(ProcessingInstruction,Node),XMLSerializer.prototype.serializeToString=function(node,isHtml,nodeFilter){return nodeSerializeToString.call(node,isHtml,nodeFilter)},Node.prototype.toString=nodeSerializeToString;try{if(Object.defineProperty){function getTextContent(node){switch(node.nodeType){case ELEMENT_NODE:case DOCUMENT_FRAGMENT_NODE:var buf=[];for(node=node.firstChild;node;)7!==node.nodeType&&8!==node.nodeType&&buf.push(getTextContent(node)),node=node.nextSibling;return buf.join("");default:return node.nodeValue}}Object.defineProperty(LiveNodeList.prototype,"length",{get:function(){return _updateLiveList(this),this.$$length}}),Object.defineProperty(Node.prototype,"textContent",{get:function(){return getTextContent(this)},set:function(data){switch(this.nodeType){case ELEMENT_NODE:case DOCUMENT_FRAGMENT_NODE:for(;this.firstChild;)this.removeChild(this.firstChild);(data||String(data))&&this.appendChild(this.ownerDocument.createTextNode(data));break;default:this.data=data,this.value=data,this.nodeValue=data}}}),__set__=function(object,key,value){object["$$"+key]=value}}}catch(e){}var dom={DocumentType:DocumentType,DOMException:DOMException,DOMImplementation:DOMImplementation$1,Element:Element,Node:Node,NodeList:NodeList,XMLSerializer:XMLSerializer},entities=createCommonjsModule((function(module,exports){var freeze=conventions.freeze;exports.XML_ENTITIES=freeze({amp:"&",apos:"'",gt:">",lt:"<",quot:'"'}),exports.HTML_ENTITIES=freeze({lt:"<",gt:">",amp:"&",quot:'"',apos:"'",Agrave:"À",Aacute:"Á",Acirc:"Â",Atilde:"Ã",Auml:"Ä",Aring:"Å",AElig:"Æ",Ccedil:"Ç",Egrave:"È",Eacute:"É",Ecirc:"Ê",Euml:"Ë",Igrave:"Ì",Iacute:"Í",Icirc:"Î",Iuml:"Ï",ETH:"Ð",Ntilde:"Ñ",Ograve:"Ò",Oacute:"Ó",Ocirc:"Ô",Otilde:"Õ",Ouml:"Ö",Oslash:"Ø",Ugrave:"Ù",Uacute:"Ú",Ucirc:"Û",Uuml:"Ü",Yacute:"Ý",THORN:"Þ",szlig:"ß",agrave:"à",aacute:"á",acirc:"â",atilde:"ã",auml:"ä",aring:"å",aelig:"æ",ccedil:"ç",egrave:"è",eacute:"é",ecirc:"ê",euml:"ë",igrave:"ì",iacute:"í",icirc:"î",iuml:"ï",eth:"ð",ntilde:"ñ",ograve:"ò",oacute:"ó",ocirc:"ô",otilde:"õ",ouml:"ö",oslash:"ø",ugrave:"ù",uacute:"ú",ucirc:"û",uuml:"ü",yacute:"ý",thorn:"þ",yuml:"ÿ",nbsp:" ",iexcl:"¡",cent:"¢",pound:"£",curren:"¤",yen:"¥",brvbar:"¦",sect:"§",uml:"¨",copy:"©",ordf:"ª",laquo:"«",not:"¬",shy:"­­",reg:"®",macr:"¯",deg:"°",plusmn:"±",sup2:"²",sup3:"³",acute:"´",micro:"µ",para:"¶",middot:"·",cedil:"¸",sup1:"¹",ordm:"º",raquo:"»",frac14:"¼",frac12:"½",frac34:"¾",iquest:"¿",times:"×",divide:"÷",forall:"∀",part:"∂",exist:"∃",empty:"∅",nabla:"∇",isin:"∈",notin:"∉",ni:"∋",prod:"∏",sum:"∑",minus:"−",lowast:"∗",radic:"√",prop:"∝",infin:"∞",ang:"∠",and:"∧",or:"∨",cap:"∩",cup:"∪",int:"∫",there4:"∴",sim:"∼",cong:"≅",asymp:"≈",ne:"≠",equiv:"≡",le:"≤",ge:"≥",sub:"⊂",sup:"⊃",nsub:"⊄",sube:"⊆",supe:"⊇",oplus:"⊕",otimes:"⊗",perp:"⊥",sdot:"⋅",Alpha:"Α",Beta:"Β",Gamma:"Γ",Delta:"Δ",Epsilon:"Ε",Zeta:"Ζ",Eta:"Η",Theta:"Θ",Iota:"Ι",Kappa:"Κ",Lambda:"Λ",Mu:"Μ",Nu:"Ν",Xi:"Ξ",Omicron:"Ο",Pi:"Π",Rho:"Ρ",Sigma:"Σ",Tau:"Τ",Upsilon:"Υ",Phi:"Φ",Chi:"Χ",Psi:"Ψ",Omega:"Ω",alpha:"α",beta:"β",gamma:"γ",delta:"δ",epsilon:"ε",zeta:"ζ",eta:"η",theta:"θ",iota:"ι",kappa:"κ",lambda:"λ",mu:"μ",nu:"ν",xi:"ξ",omicron:"ο",pi:"π",rho:"ρ",sigmaf:"ς",sigma:"σ",tau:"τ",upsilon:"υ",phi:"φ",chi:"χ",psi:"ψ",omega:"ω",thetasym:"ϑ",upsih:"ϒ",piv:"ϖ",OElig:"Œ",oelig:"œ",Scaron:"Š",scaron:"š",Yuml:"Ÿ",fnof:"ƒ",circ:"ˆ",tilde:"˜",ensp:" ",emsp:" ",thinsp:" ",zwnj:"‌",zwj:"‍",lrm:"‎",rlm:"‏",ndash:"–",mdash:"—",lsquo:"‘",rsquo:"’",sbquo:"‚",ldquo:"“",rdquo:"”",bdquo:"„",dagger:"†",Dagger:"‡",bull:"•",hellip:"…",permil:"‰",prime:"′",Prime:"″",lsaquo:"‹",rsaquo:"›",oline:"‾",euro:"€",trade:"™",larr:"←",uarr:"↑",rarr:"→",darr:"↓",harr:"↔",crarr:"↵",lceil:"⌈",rceil:"⌉",lfloor:"⌊",rfloor:"⌋",loz:"◊",spades:"♠",clubs:"♣",hearts:"♥",diams:"♦"}),exports.entityMap=exports.HTML_ENTITIES}));entities.XML_ENTITIES,entities.HTML_ENTITIES,entities.entityMap;var NAMESPACE$1=conventions.NAMESPACE,nameStartChar=/[A-Z_a-z\xC0-\xD6\xD8-\xF6\u00F8-\u02FF\u0370-\u037D\u037F-\u1FFF\u200C-\u200D\u2070-\u218F\u2C00-\u2FEF\u3001-\uD7FF\uF900-\uFDCF\uFDF0-\uFFFD]/,nameChar=new RegExp("[\\-\\.0-9"+nameStartChar.source.slice(1,-1)+"\\u00B7\\u0300-\\u036F\\u203F-\\u2040]"),tagNamePattern=new RegExp("^"+nameStartChar.source+nameChar.source+"*(?::"+nameStartChar.source+nameChar.source+"*)?$");function ParseError$1(message,locator){this.message=message,this.locator=locator,Error.captureStackTrace&&Error.captureStackTrace(this,ParseError$1)}function XMLReader$1(){}function copyLocator(f,t){return t.lineNumber=f.lineNumber,t.columnNumber=f.columnNumber,t}function parseElementStartPart(source,start,el,currentNSMap,entityReplacer,errorHandler){function addAttribute(qname,value,startIndex){el.attributeNames.hasOwnProperty(qname)&&errorHandler.fatalError("Attribute "+qname+" redefined"),el.addValue(qname,value.replace(/[\t\n\r]/g," ").replace(/&#?\w+;/g,entityReplacer),startIndex)}for(var attrName,p=++start,s=0;;){var c=source.charAt(p);switch(c){case"=":if(1===s)attrName=source.slice(start,p),s=3;else{if(2!==s)throw new Error("attribute equal must after attrName");s=3}break;case"'":case'"':if(3===s||1===s){if(1===s&&(errorHandler.warning('attribute value must after "="'),attrName=source.slice(start,p)),start=p+1,!((p=source.indexOf(c,start))>0))throw new Error("attribute value no end '"+c+"' match");addAttribute(attrName,value=source.slice(start,p),start-1),s=5}else{if(4!=s)throw new Error('attribute value must after "="');addAttribute(attrName,value=source.slice(start,p),start),errorHandler.warning('attribute "'+attrName+'" missed start quot('+c+")!!"),start=p+1,s=5}break;case"/":switch(s){case 0:el.setTagName(source.slice(start,p));case 5:case 6:case 7:s=7,el.closed=!0;case 4:case 1:case 2:break;default:throw new Error("attribute invalid close char('/')")}break;case"":return errorHandler.error("unexpected end of input"),0==s&&el.setTagName(source.slice(start,p)),p;case">":switch(s){case 0:el.setTagName(source.slice(start,p));case 5:case 6:case 7:break;case 4:case 1:"/"===(value=source.slice(start,p)).slice(-1)&&(el.closed=!0,value=value.slice(0,-1));case 2:2===s&&(value=attrName),4==s?(errorHandler.warning('attribute "'+value+'" missed quot(")!'),addAttribute(attrName,value,start)):(NAMESPACE$1.isHTML(currentNSMap[""])&&value.match(/^(?:disabled|checked|selected)$/i)||errorHandler.warning('attribute "'+value+'" missed value!! "'+value+'" instead!!'),addAttribute(value,value,start));break;case 3:throw new Error("attribute value missed!!")}return p;case"€":c=" ";default:if(c<=" ")switch(s){case 0:el.setTagName(source.slice(start,p)),s=6;break;case 1:attrName=source.slice(start,p),s=2;break;case 4:var value=source.slice(start,p);errorHandler.warning('attribute "'+value+'" missed quot(")!!'),addAttribute(attrName,value,start);case 5:s=6}else switch(s){case 2:el.tagName,NAMESPACE$1.isHTML(currentNSMap[""])&&attrName.match(/^(?:disabled|checked|selected)$/i)||errorHandler.warning('attribute "'+attrName+'" missed value!! "'+attrName+'" instead2!!'),addAttribute(attrName,attrName,start),start=p,s=1;break;case 5:errorHandler.warning('attribute space is required"'+attrName+'"!!');case 6:s=1,start=p;break;case 3:s=4,start=p;break;case 7:throw new Error("elements closed character '/' and '>' must be connected to")}}p++}}function appendElement$1(el,domBuilder,currentNSMap){for(var tagName=el.tagName,localNSMap=null,i=el.length;i--;){var a=el[i],qName=a.qName,value=a.value;if((nsp=qName.indexOf(":"))>0)var prefix=a.prefix=qName.slice(0,nsp),localName=qName.slice(nsp+1),nsPrefix="xmlns"===prefix&&localName;else localName=qName,prefix=null,nsPrefix="xmlns"===qName&&"";a.localName=localName,!1!==nsPrefix&&(null==localNSMap&&(localNSMap={},_copy(currentNSMap,currentNSMap={})),currentNSMap[nsPrefix]=localNSMap[nsPrefix]=value,a.uri=NAMESPACE$1.XMLNS,domBuilder.startPrefixMapping(nsPrefix,value))}for(i=el.length;i--;){(prefix=(a=el[i]).prefix)&&("xml"===prefix&&(a.uri=NAMESPACE$1.XML),"xmlns"!==prefix&&(a.uri=currentNSMap[prefix||""]))}var nsp;(nsp=tagName.indexOf(":"))>0?(prefix=el.prefix=tagName.slice(0,nsp),localName=el.localName=tagName.slice(nsp+1)):(prefix=null,localName=el.localName=tagName);var ns=el.uri=currentNSMap[prefix||""];if(domBuilder.startElement(ns,localName,tagName,el),!el.closed)return el.currentNSMap=currentNSMap,el.localNSMap=localNSMap,!0;if(domBuilder.endElement(ns,localName,tagName),localNSMap)for(prefix in localNSMap)Object.prototype.hasOwnProperty.call(localNSMap,prefix)&&domBuilder.endPrefixMapping(prefix)}function parseHtmlSpecialContent(source,elStartEnd,tagName,entityReplacer,domBuilder){if(/^(?:script|textarea)$/i.test(tagName)){var elEndStart=source.indexOf("</"+tagName+">",elStartEnd),text=source.substring(elStartEnd+1,elEndStart);if(/[&<]/.test(text))return/^script$/i.test(tagName)?(domBuilder.characters(text,0,text.length),elEndStart):(text=text.replace(/&#?\w+;/g,entityReplacer),domBuilder.characters(text,0,text.length),elEndStart)}return elStartEnd+1}function fixSelfClosed(source,elStartEnd,tagName,closeMap){var pos=closeMap[tagName];return null==pos&&((pos=source.lastIndexOf("</"+tagName+">"))<elStartEnd&&(pos=source.lastIndexOf("</"+tagName)),closeMap[tagName]=pos),pos<elStartEnd}function _copy(source,target){for(var n in source)Object.prototype.hasOwnProperty.call(source,n)&&(target[n]=source[n])}function parseDCC(source,start,domBuilder,errorHandler){if("-"===source.charAt(start+2))return"-"===source.charAt(start+3)?(end=source.indexOf("--\x3e",start+4))>start?(domBuilder.comment(source,start+4,end-start-4),end+3):(errorHandler.error("Unclosed comment"),-1):-1;if("CDATA["==source.substr(start+3,6)){var end=source.indexOf("]]>",start+9);return domBuilder.startCDATA(),domBuilder.characters(source,start+9,end-start-9),domBuilder.endCDATA(),end+3}var matchs=function(source,start){var match,buf=[],reg=/'[^']+'|"[^"]+"|[^\s<>\/=]+=?|(\/?\s*>|<)/g;reg.lastIndex=start,reg.exec(source);for(;match=reg.exec(source);)if(buf.push(match),match[1])return buf}(source,start),len=matchs.length;if(len>1&&/!doctype/i.test(matchs[0][0])){var name=matchs[1][0],pubid=!1,sysid=!1;len>3&&(/^public$/i.test(matchs[2][0])?(pubid=matchs[3][0],sysid=len>4&&matchs[4][0]):/^system$/i.test(matchs[2][0])&&(sysid=matchs[3][0]));var lastMatch=matchs[len-1];return domBuilder.startDTD(name,pubid,sysid),domBuilder.endDTD(),lastMatch.index+lastMatch[0].length}return-1}function parseInstruction(source,start,domBuilder){var end=source.indexOf("?>",start);if(end){var match=source.substring(start,end).match(/^<\?(\S*)\s*([\s\S]*?)\s*$/);return match?(match[0].length,domBuilder.processingInstruction(match[1],match[2]),end+2):-1}return-1}function ElementAttributes(){this.attributeNames={}}ParseError$1.prototype=new Error,ParseError$1.prototype.name=ParseError$1.name,XMLReader$1.prototype={parse:function(source,defaultNSMap,entityMap){var domBuilder=this.domBuilder;domBuilder.startDocument(),_copy(defaultNSMap,defaultNSMap={}),function(source,defaultNSMapCopy,entityMap,domBuilder,errorHandler){function fixedFromCharCode(code){if(code>65535){var surrogate1=55296+((code-=65536)>>10),surrogate2=56320+(1023&code);return String.fromCharCode(surrogate1,surrogate2)}return String.fromCharCode(code)}function entityReplacer(a){var k=a.slice(1,-1);return Object.hasOwnProperty.call(entityMap,k)?entityMap[k]:"#"===k.charAt(0)?fixedFromCharCode(parseInt(k.substr(1).replace("x","0x"))):(errorHandler.error("entity not found:"+a),a)}function appendText(end){if(end>start){var xt=source.substring(start,end).replace(/&#?\w+;/g,entityReplacer);locator&&position(start),domBuilder.characters(xt,0,end-start),start=end}}function position(p,m){for(;p>=lineEnd&&(m=linePattern.exec(source));)lineStart=m.index,lineEnd=lineStart+m[0].length,locator.lineNumber++;locator.columnNumber=p-lineStart+1}var lineStart=0,lineEnd=0,linePattern=/.*(?:\r\n?|\n)|.*$/g,locator=domBuilder.locator,parseStack=[{currentNSMap:defaultNSMapCopy}],closeMap={},start=0;for(;;){try{var tagStart=source.indexOf("<",start);if(tagStart<0){if(!source.substr(start).match(/^\s*$/)){var doc=domBuilder.doc,text=doc.createTextNode(source.substr(start));doc.appendChild(text),domBuilder.currentElement=text}return}switch(tagStart>start&&appendText(tagStart),source.charAt(tagStart+1)){case"/":var end=source.indexOf(">",tagStart+3),tagName=source.substring(tagStart+2,end).replace(/[ \t\n\r]+$/g,""),config=parseStack.pop();end<0?(tagName=source.substring(tagStart+2).replace(/[\s<].*/,""),errorHandler.error("end tag name: "+tagName+" is not complete:"+config.tagName),end=tagStart+1+tagName.length):tagName.match(/\s</)&&(tagName=tagName.replace(/[\s<].*/,""),errorHandler.error("end tag name: "+tagName+" maybe not complete"),end=tagStart+1+tagName.length);var localNSMap=config.localNSMap,endMatch=config.tagName==tagName;if(endMatch||config.tagName&&config.tagName.toLowerCase()==tagName.toLowerCase()){if(domBuilder.endElement(config.uri,config.localName,tagName),localNSMap)for(var prefix in localNSMap)Object.prototype.hasOwnProperty.call(localNSMap,prefix)&&domBuilder.endPrefixMapping(prefix);endMatch||errorHandler.fatalError("end tag name: "+tagName+" is not match the current start tagName:"+config.tagName)}else parseStack.push(config);end++;break;case"?":locator&&position(tagStart),end=parseInstruction(source,tagStart,domBuilder);break;case"!":locator&&position(tagStart),end=parseDCC(source,tagStart,domBuilder,errorHandler);break;default:locator&&position(tagStart);var el=new ElementAttributes,currentNSMap=parseStack[parseStack.length-1].currentNSMap,len=(end=parseElementStartPart(source,tagStart,el,currentNSMap,entityReplacer,errorHandler),el.length);if(!el.closed&&fixSelfClosed(source,end,el.tagName,closeMap)&&(el.closed=!0,entityMap.nbsp||errorHandler.warning("unclosed xml attribute")),locator&&len){for(var locator2=copyLocator(locator,{}),i=0;i<len;i++){var a=el[i];position(a.offset),a.locator=copyLocator(locator,{})}domBuilder.locator=locator2,appendElement$1(el,domBuilder,currentNSMap)&&parseStack.push(el),domBuilder.locator=locator}else appendElement$1(el,domBuilder,currentNSMap)&&parseStack.push(el);NAMESPACE$1.isHTML(el.uri)&&!el.closed?end=parseHtmlSpecialContent(source,end,el.tagName,entityReplacer,domBuilder):end++}}catch(e){if(e instanceof ParseError$1)throw e;errorHandler.error("element parse error: "+e),end=-1}end>start?start=end:appendText(Math.max(tagStart,start)+1)}}(source,defaultNSMap,entityMap,domBuilder,this.errorHandler),domBuilder.endDocument()}},ElementAttributes.prototype={setTagName:function(tagName){if(!tagNamePattern.test(tagName))throw new Error("invalid tagName:"+tagName);this.tagName=tagName},addValue:function(qName,value,offset){if(!tagNamePattern.test(qName))throw new Error("invalid attribute:"+qName);this.attributeNames[qName]=this.length,this[this.length++]={qName:qName,value:value,offset:offset}},length:0,getLocalName:function(i){return this[i].localName},getLocator:function(i){return this[i].locator},getQName:function(i){return this[i].qName},getURI:function(i){return this[i].uri},getValue:function(i){return this[i].value}};var sax={XMLReader:XMLReader$1,ParseError:ParseError$1},DOMImplementation=dom.DOMImplementation,NAMESPACE=conventions.NAMESPACE,ParseError=sax.ParseError,XMLReader=sax.XMLReader;function normalizeLineEndings(input){return input.replace(/\r[\n\u0085]/g,"\n").replace(/[\r\u0085\u2028]/g,"\n")}function DOMParser$1(options){this.options=options||{locator:{}}}function DOMHandler(){this.cdata=!1}function position(locator,node){node.lineNumber=locator.lineNumber,node.columnNumber=locator.columnNumber}function _locator(l){if(l)return"\n@"+(l.systemId||"")+"#[line:"+l.lineNumber+",col:"+l.columnNumber+"]"}function _toString(chars,start,length){return"string"==typeof chars?chars.substr(start,length):chars.length>=start+length||start?new java.lang.String(chars,start,length)+"":chars}function appendElement(hander,node){hander.currentElement?hander.currentElement.appendChild(node):hander.doc.appendChild(node)}DOMParser$1.prototype.parseFromString=function(source,mimeType){var options=this.options,sax=new XMLReader,domBuilder=options.domBuilder||new DOMHandler,errorHandler=options.errorHandler,locator=options.locator,defaultNSMap=options.xmlns||{},isHTML=/\/x?html?$/.test(mimeType),entityMap=isHTML?entities.HTML_ENTITIES:entities.XML_ENTITIES;locator&&domBuilder.setDocumentLocator(locator),sax.errorHandler=function(errorImpl,domBuilder,locator){if(!errorImpl){if(domBuilder instanceof DOMHandler)return domBuilder;errorImpl=domBuilder}var errorHandler={},isCallback=errorImpl instanceof Function;function build(key){var fn=errorImpl[key];!fn&&isCallback&&(fn=2==errorImpl.length?function(msg){errorImpl(key,msg)}:errorImpl),errorHandler[key]=fn&&function(msg){fn("[xmldom "+key+"]\t"+msg+_locator(locator))}||function(){}}return locator=locator||{},build("warning"),build("error"),build("fatalError"),errorHandler}(errorHandler,domBuilder,locator),sax.domBuilder=options.domBuilder||domBuilder,isHTML&&(defaultNSMap[""]=NAMESPACE.HTML),defaultNSMap.xml=defaultNSMap.xml||NAMESPACE.XML;var normalize=options.normalizeLineEndings||normalizeLineEndings;return source&&"string"==typeof source?sax.parse(normalize(source),defaultNSMap,entityMap):sax.errorHandler.error("invalid doc source"),domBuilder.doc},DOMHandler.prototype={startDocument:function(){this.doc=(new DOMImplementation).createDocument(null,null,null),this.locator&&(this.doc.documentURI=this.locator.systemId)},startElement:function(namespaceURI,localName,qName,attrs){var doc=this.doc,el=doc.createElementNS(namespaceURI,qName||localName),len=attrs.length;appendElement(this,el),this.currentElement=el,this.locator&&position(this.locator,el);for(var i=0;i<len;i++){namespaceURI=attrs.getURI(i);var value=attrs.getValue(i),attr=(qName=attrs.getQName(i),doc.createAttributeNS(namespaceURI,qName));this.locator&&position(attrs.getLocator(i),attr),attr.value=attr.nodeValue=value,el.setAttributeNode(attr)}},endElement:function(namespaceURI,localName,qName){var current=this.currentElement;current.tagName,this.currentElement=current.parentNode},startPrefixMapping:function(prefix,uri){},endPrefixMapping:function(prefix){},processingInstruction:function(target,data){var ins=this.doc.createProcessingInstruction(target,data);this.locator&&position(this.locator,ins),appendElement(this,ins)},ignorableWhitespace:function(ch,start,length){},characters:function(chars,start,length){if(chars=_toString.apply(this,arguments)){if(this.cdata)var charNode=this.doc.createCDATASection(chars);else charNode=this.doc.createTextNode(chars);this.currentElement?this.currentElement.appendChild(charNode):/^\s*$/.test(chars)&&this.doc.appendChild(charNode),this.locator&&position(this.locator,charNode)}},skippedEntity:function(name){},endDocument:function(){this.doc.normalize()},setDocumentLocator:function(locator){(this.locator=locator)&&(locator.lineNumber=0)},comment:function(chars,start,length){chars=_toString.apply(this,arguments);var comm=this.doc.createComment(chars);this.locator&&position(this.locator,comm),appendElement(this,comm)},startCDATA:function(){this.cdata=!0},endCDATA:function(){this.cdata=!1},startDTD:function(name,publicId,systemId){var impl=this.doc.implementation;if(impl&&impl.createDocumentType){var dt=impl.createDocumentType(name,publicId,systemId);this.locator&&position(this.locator,dt),appendElement(this,dt),this.doc.doctype=dt}},warning:function(error){console.warn("[xmldom warning]\t"+error,_locator(this.locator))},error:function(error){console.error("[xmldom error]\t"+error,_locator(this.locator))},fatalError:function(error){throw new ParseError(error,this.locator)}},"endDTD,startEntity,endEntity,attributeDecl,elementDecl,externalEntityDecl,internalEntityDecl,resolveEntity,getExternalSubset,notationDecl,unparsedEntityDecl".replace(/\w+/g,(function(key){DOMHandler.prototype[key]=function(){return null}}));var DOMParser={__DOMHandler:DOMHandler,normalizeLineEndings:normalizeLineEndings,DOMParser:DOMParser$1}.DOMParser;
+/*! @name mpd-parser @version 1.0.1 @license Apache-2.0 */
+const isObject=obj=>!!obj&&"object"==typeof obj,merge$1=function(){for(var _len23=arguments.length,objects=new Array(_len23),_key23=0;_key23<_len23;_key23++)objects[_key23]=arguments[_key23];return objects.reduce(((result,source)=>("object"!=typeof source||Object.keys(source).forEach((key=>{Array.isArray(result[key])&&Array.isArray(source[key])?result[key]=result[key].concat(source[key]):isObject(result[key])&&isObject(source[key])?result[key]=merge$1(result[key],source[key]):result[key]=source[key]})),result)),{})},values=o=>Object.keys(o).map((k=>o[k])),flatten=lists=>lists.reduce(((x,y)=>x.concat(y)),[]),from=list=>{if(!list.length)return[];const result=[];for(let i=0;i<list.length;i++)result.push(list[i]);return result};var errors_INVALID_NUMBER_OF_PERIOD="INVALID_NUMBER_OF_PERIOD",errors_DASH_EMPTY_MANIFEST="DASH_EMPTY_MANIFEST",errors_DASH_INVALID_XML="DASH_INVALID_XML",errors_NO_BASE_URL="NO_BASE_URL",errors_SEGMENT_TIME_UNSPECIFIED="SEGMENT_TIME_UNSPECIFIED",errors_UNSUPPORTED_UTC_TIMING_SCHEME="UNSUPPORTED_UTC_TIMING_SCHEME";const urlTypeToSegment=_ref10=>{let{baseUrl:baseUrl="",source:source="",range:range="",indexRange:indexRange=""}=_ref10;const segment={uri:source,resolvedUri:resolveUrl$1(baseUrl||"",source)};if(range||indexRange){const ranges=(range||indexRange).split("-");let length,startRange=window.BigInt?window.BigInt(ranges[0]):parseInt(ranges[0],10),endRange=window.BigInt?window.BigInt(ranges[1]):parseInt(ranges[1],10);startRange<Number.MAX_SAFE_INTEGER&&"bigint"==typeof startRange&&(startRange=Number(startRange)),endRange<Number.MAX_SAFE_INTEGER&&"bigint"==typeof endRange&&(endRange=Number(endRange)),length="bigint"==typeof endRange||"bigint"==typeof startRange?window.BigInt(endRange)-window.BigInt(startRange)+window.BigInt(1):endRange-startRange+1,"bigint"==typeof length&&length<Number.MAX_SAFE_INTEGER&&(length=Number(length)),segment.byterange={length:length,offset:startRange}}return segment},parseEndNumber=endNumber=>(endNumber&&"number"!=typeof endNumber&&(endNumber=parseInt(endNumber,10)),isNaN(endNumber)?null:endNumber),segmentRange={static(attributes){const{duration:duration,timescale:timescale=1,sourceDuration:sourceDuration,periodDuration:periodDuration}=attributes,endNumber=parseEndNumber(attributes.endNumber),segmentDuration=duration/timescale;return"number"==typeof endNumber?{start:0,end:endNumber}:"number"==typeof periodDuration?{start:0,end:periodDuration/segmentDuration}:{start:0,end:sourceDuration/segmentDuration}},dynamic(attributes){const{NOW:NOW,clientOffset:clientOffset,availabilityStartTime:availabilityStartTime,timescale:timescale=1,duration:duration,periodStart:periodStart=0,minimumUpdatePeriod:minimumUpdatePeriod=0,timeShiftBufferDepth:timeShiftBufferDepth=1/0}=attributes,endNumber=parseEndNumber(attributes.endNumber),now=(NOW+clientOffset)/1e3,periodStartWC=availabilityStartTime+periodStart,periodDuration=now+minimumUpdatePeriod-periodStartWC,segmentCount=Math.ceil(periodDuration*timescale/duration),availableStart=Math.floor((now-periodStartWC-timeShiftBufferDepth)*timescale/duration),availableEnd=Math.floor((now-periodStartWC)*timescale/duration);return{start:Math.max(0,availableStart),end:"number"==typeof endNumber?endNumber:Math.min(segmentCount,availableEnd)}}},parseByDuration=attributes=>{const{type:type,duration:duration,timescale:timescale=1,periodDuration:periodDuration,sourceDuration:sourceDuration}=attributes,{start:start,end:end}=segmentRange[type](attributes),segments=((start,end)=>{const result=[];for(let i=start;i<end;i++)result.push(i);return result})(start,end).map((attributes=>number=>{const{duration:duration,timescale:timescale=1,periodStart:periodStart,startNumber:startNumber=1}=attributes;return{number:startNumber+number,duration:duration/timescale,timeline:periodStart,time:number*duration}})(attributes));if("static"===type){const index=segments.length-1,sectionDuration="number"==typeof periodDuration?periodDuration:sourceDuration;segments[index].duration=sectionDuration-duration/timescale*index}return segments},segmentsFromBase=attributes=>{const{baseUrl:baseUrl,initialization:initialization={},sourceDuration:sourceDuration,indexRange:indexRange="",periodStart:periodStart,presentationTime:presentationTime,number:number=0,duration:duration}=attributes;if(!baseUrl)throw new Error(errors_NO_BASE_URL);const initSegment=urlTypeToSegment({baseUrl:baseUrl,source:initialization.sourceURL,range:initialization.range}),segment=urlTypeToSegment({baseUrl:baseUrl,source:baseUrl,indexRange:indexRange});if(segment.map=initSegment,duration){const segmentTimeInfo=parseByDuration(attributes);segmentTimeInfo.length&&(segment.duration=segmentTimeInfo[0].duration,segment.timeline=segmentTimeInfo[0].timeline)}else sourceDuration&&(segment.duration=sourceDuration,segment.timeline=periodStart);return segment.presentationTime=presentationTime||periodStart,segment.number=number,[segment]},addSidxSegmentsToPlaylist$1=(playlist,sidx,baseUrl)=>{const initSegment=playlist.sidx.map?playlist.sidx.map:null,sourceDuration=playlist.sidx.duration,timeline=playlist.timeline||0,sidxByteRange=playlist.sidx.byterange,sidxEnd=sidxByteRange.offset+sidxByteRange.length,timescale=sidx.timescale,mediaReferences=sidx.references.filter((r=>1!==r.referenceType)),segments=[],type=playlist.endList?"static":"dynamic",periodStart=playlist.sidx.timeline;let startIndex,presentationTime=periodStart,number=playlist.mediaSequence||0;startIndex="bigint"==typeof sidx.firstOffset?window.BigInt(sidxEnd)+sidx.firstOffset:sidxEnd+sidx.firstOffset;for(let i=0;i<mediaReferences.length;i++){const reference=sidx.references[i],size=reference.referencedSize,duration=reference.subsegmentDuration;let endIndex;endIndex="bigint"==typeof startIndex?startIndex+window.BigInt(size)-window.BigInt(1):startIndex+size-1;const indexRange="".concat(startIndex,"-").concat(endIndex),segment=segmentsFromBase({baseUrl:baseUrl,timescale:timescale,timeline:timeline,periodStart:periodStart,presentationTime:presentationTime,number:number,duration:duration,sourceDuration:sourceDuration,indexRange:indexRange,type:type})[0];initSegment&&(segment.map=initSegment),segments.push(segment),startIndex+="bigint"==typeof startIndex?window.BigInt(size):size,presentationTime+=duration/timescale,number++}return playlist.segments=segments,playlist},SUPPORTED_MEDIA_TYPES=["AUDIO","SUBTITLES"],getUniqueTimelineStarts=timelineStarts=>{return(lists=timelineStarts,keyFunction=_ref11=>{let{timeline:timeline}=_ref11;return timeline},values(lists.reduce(((acc,list)=>(list.forEach((el=>{acc[keyFunction(el)]=el})),acc)),{}))).sort(((a,b)=>a.timeline>b.timeline?1:-1));var lists,keyFunction},getMediaGroupPlaylists=manifest=>{let mediaGroupPlaylists=[];var master,callback;return master=manifest,callback=(properties,type,group,label)=>{mediaGroupPlaylists=mediaGroupPlaylists.concat(properties.playlists||[])},SUPPORTED_MEDIA_TYPES.forEach((function(mediaType){for(var groupKey in master.mediaGroups[mediaType])for(var labelKey in master.mediaGroups[mediaType][groupKey]){var mediaProperties=master.mediaGroups[mediaType][groupKey][labelKey];callback(mediaProperties,mediaType,groupKey,labelKey)}})),mediaGroupPlaylists},updateMediaSequenceForPlaylist=_ref12=>{let{playlist:playlist,mediaSequence:mediaSequence}=_ref12;playlist.mediaSequence=mediaSequence,playlist.segments.forEach(((segment,index)=>{segment.number=playlist.mediaSequence+index}))},positionManifestOnTimeline=_ref15=>{let{oldManifest:oldManifest,newManifest:newManifest}=_ref15;const oldPlaylists=oldManifest.playlists.concat(getMediaGroupPlaylists(oldManifest)),newPlaylists=newManifest.playlists.concat(getMediaGroupPlaylists(newManifest));return newManifest.timelineStarts=getUniqueTimelineStarts([oldManifest.timelineStarts,newManifest.timelineStarts]),(_ref13=>{let{oldPlaylists:oldPlaylists,newPlaylists:newPlaylists,timelineStarts:timelineStarts}=_ref13;newPlaylists.forEach((playlist=>{playlist.discontinuitySequence=timelineStarts.findIndex((function(_ref14){let{timeline:timeline}=_ref14;return timeline===playlist.timeline}));const oldPlaylist=((playlists,name)=>{for(let i=0;i<playlists.length;i++)if(playlists[i].attributes.NAME===name)return playlists[i];return null})(oldPlaylists,playlist.attributes.NAME);if(!oldPlaylist)return;if(playlist.sidx)return;const firstNewSegment=playlist.segments[0],oldMatchingSegmentIndex=oldPlaylist.segments.findIndex((function(oldSegment){return Math.abs(oldSegment.presentationTime-firstNewSegment.presentationTime)<.016666666666666666}));if(-1===oldMatchingSegmentIndex)return updateMediaSequenceForPlaylist({playlist:playlist,mediaSequence:oldPlaylist.mediaSequence+oldPlaylist.segments.length}),playlist.segments[0].discontinuity=!0,playlist.discontinuityStarts.unshift(0),void((!oldPlaylist.segments.length&&playlist.timeline>oldPlaylist.timeline||oldPlaylist.segments.length&&playlist.timeline>oldPlaylist.segments[oldPlaylist.segments.length-1].timeline)&&playlist.discontinuitySequence--);oldPlaylist.segments[oldMatchingSegmentIndex].discontinuity&&!firstNewSegment.discontinuity&&(firstNewSegment.discontinuity=!0,playlist.discontinuityStarts.unshift(0),playlist.discontinuitySequence--),updateMediaSequenceForPlaylist({playlist:playlist,mediaSequence:oldPlaylist.segments[oldMatchingSegmentIndex].number})}))})({oldPlaylists:oldPlaylists,newPlaylists:newPlaylists,timelineStarts:newManifest.timelineStarts}),newManifest},generateSidxKey=sidx=>sidx&&sidx.uri+"-"+(byterange=>{let endRange;return endRange="bigint"==typeof byterange.offset||"bigint"==typeof byterange.length?window.BigInt(byterange.offset)+window.BigInt(byterange.length)-window.BigInt(1):byterange.offset+byterange.length-1,"".concat(byterange.offset,"-").concat(endRange)})(sidx.byterange),mergeDiscontiguousPlaylists=playlists=>values(playlists.reduce(((acc,playlist)=>{const name=playlist.attributes.id+(playlist.attributes.lang||"");return acc[name]?(playlist.segments&&(playlist.segments[0]&&(playlist.segments[0].discontinuity=!0),acc[name].segments.push(...playlist.segments)),playlist.attributes.contentProtection&&(acc[name].attributes.contentProtection=playlist.attributes.contentProtection)):(acc[name]=playlist,acc[name].attributes.timelineStarts=[]),acc[name].attributes.timelineStarts.push({start:playlist.attributes.periodStart,timeline:playlist.attributes.periodStart}),acc}),{})).map((playlist=>{var l,key;return playlist.discontinuityStarts=(l=playlist.segments||[],key="discontinuity",l.reduce(((a,e,i)=>(e[key]&&a.push(i),a)),[])),playlist})),addSidxSegmentsToPlaylist=(playlist,sidxMapping)=>{const sidxKey=generateSidxKey(playlist.sidx),sidxMatch=sidxKey&&sidxMapping[sidxKey]&&sidxMapping[sidxKey].sidx;return sidxMatch&&addSidxSegmentsToPlaylist$1(playlist,sidxMatch,playlist.sidx.resolvedUri),playlist},addSidxSegmentsToPlaylists=function(playlists){let sidxMapping=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};if(!Object.keys(sidxMapping).length)return playlists;for(const i in playlists)playlists[i]=addSidxSegmentsToPlaylist(playlists[i],sidxMapping);return playlists},formatAudioPlaylist=(_ref16,isAudioOnly)=>{let{attributes:attributes,segments:segments,sidx:sidx,mediaSequence:mediaSequence,discontinuitySequence:discontinuitySequence,discontinuityStarts:discontinuityStarts}=_ref16;const playlist={attributes:{NAME:attributes.id,BANDWIDTH:attributes.bandwidth,CODECS:attributes.codecs,"PROGRAM-ID":1},uri:"",endList:"static"===attributes.type,timeline:attributes.periodStart,resolvedUri:"",targetDuration:attributes.duration,discontinuitySequence:discontinuitySequence,discontinuityStarts:discontinuityStarts,timelineStarts:attributes.timelineStarts,mediaSequence:mediaSequence,segments:segments};return attributes.contentProtection&&(playlist.contentProtection=attributes.contentProtection),sidx&&(playlist.sidx=sidx),isAudioOnly&&(playlist.attributes.AUDIO="audio",playlist.attributes.SUBTITLES="subs"),playlist},formatVttPlaylist=_ref17=>{let{attributes:attributes,segments:segments,mediaSequence:mediaSequence,discontinuityStarts:discontinuityStarts,discontinuitySequence:discontinuitySequence}=_ref17;void 0===segments&&(segments=[{uri:attributes.baseUrl,timeline:attributes.periodStart,resolvedUri:attributes.baseUrl||"",duration:attributes.sourceDuration,number:0}],attributes.duration=attributes.sourceDuration);const m3u8Attributes={NAME:attributes.id,BANDWIDTH:attributes.bandwidth,"PROGRAM-ID":1};return attributes.codecs&&(m3u8Attributes.CODECS=attributes.codecs),{attributes:m3u8Attributes,uri:"",endList:"static"===attributes.type,timeline:attributes.periodStart,resolvedUri:attributes.baseUrl||"",targetDuration:attributes.duration,timelineStarts:attributes.timelineStarts,discontinuityStarts:discontinuityStarts,discontinuitySequence:discontinuitySequence,mediaSequence:mediaSequence,segments:segments}},formatVideoPlaylist=_ref18=>{let{attributes:attributes,segments:segments,sidx:sidx,discontinuityStarts:discontinuityStarts}=_ref18;const playlist={attributes:{NAME:attributes.id,AUDIO:"audio",SUBTITLES:"subs",RESOLUTION:{width:attributes.width,height:attributes.height},CODECS:attributes.codecs,BANDWIDTH:attributes.bandwidth,"PROGRAM-ID":1},uri:"",endList:"static"===attributes.type,timeline:attributes.periodStart,resolvedUri:"",targetDuration:attributes.duration,discontinuityStarts:discontinuityStarts,timelineStarts:attributes.timelineStarts,segments:segments};return attributes.frameRate&&(playlist.attributes["FRAME-RATE"]=attributes.frameRate),attributes.contentProtection&&(playlist.contentProtection=attributes.contentProtection),sidx&&(playlist.sidx=sidx),playlist},videoOnly=_ref19=>{let{attributes:attributes}=_ref19;return"video/mp4"===attributes.mimeType||"video/webm"===attributes.mimeType||"video"===attributes.contentType},audioOnly=_ref20=>{let{attributes:attributes}=_ref20;return"audio/mp4"===attributes.mimeType||"audio/webm"===attributes.mimeType||"audio"===attributes.contentType},vttOnly=_ref21=>{let{attributes:attributes}=_ref21;return"text/vtt"===attributes.mimeType||"text"===attributes.contentType},flattenMediaGroupPlaylists=mediaGroupObject=>mediaGroupObject?Object.keys(mediaGroupObject).reduce(((acc,label)=>{const labelContents=mediaGroupObject[label];return acc.concat(labelContents.playlists)}),[]):[],toM3u8=_ref23=>{let{dashPlaylists:dashPlaylists,locations:locations,sidxMapping:sidxMapping={},previousManifest:previousManifest}=_ref23;if(!dashPlaylists.length)return{};const{sourceDuration:duration,type:type,suggestedPresentationDelay:suggestedPresentationDelay,minimumUpdatePeriod:minimumUpdatePeriod}=dashPlaylists[0].attributes,videoPlaylists=mergeDiscontiguousPlaylists(dashPlaylists.filter(videoOnly)).map(formatVideoPlaylist),audioPlaylists=mergeDiscontiguousPlaylists(dashPlaylists.filter(audioOnly)),vttPlaylists=mergeDiscontiguousPlaylists(dashPlaylists.filter(vttOnly)),captions=dashPlaylists.map((playlist=>playlist.attributes.captionServices)).filter(Boolean),manifest={allowCache:!0,discontinuityStarts:[],segments:[],endList:!0,mediaGroups:{AUDIO:{},VIDEO:{},"CLOSED-CAPTIONS":{},SUBTITLES:{}},uri:"",duration:duration,playlists:addSidxSegmentsToPlaylists(videoPlaylists,sidxMapping)};minimumUpdatePeriod>=0&&(manifest.minimumUpdatePeriod=1e3*minimumUpdatePeriod),locations&&(manifest.locations=locations),"dynamic"===type&&(manifest.suggestedPresentationDelay=suggestedPresentationDelay);const isAudioOnly=0===manifest.playlists.length,organizedAudioGroup=audioPlaylists.length?function(playlists){let mainPlaylist,sidxMapping=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{},isAudioOnly=arguments.length>2&&void 0!==arguments[2]&&arguments[2];const formattedPlaylists=playlists.reduce(((a,playlist)=>{const role=playlist.attributes.role&&playlist.attributes.role.value||"",language=playlist.attributes.lang||"";let label=playlist.attributes.label||"main";if(language&&!playlist.attributes.label){const roleLabel=role?" (".concat(role,")"):"";label="".concat(playlist.attributes.lang).concat(roleLabel)}a[label]||(a[label]={language:language,autoselect:!0,default:"main"===role,playlists:[],uri:""});const formatted=addSidxSegmentsToPlaylist(formatAudioPlaylist(playlist,isAudioOnly),sidxMapping);return a[label].playlists.push(formatted),void 0===mainPlaylist&&"main"===role&&(mainPlaylist=playlist,mainPlaylist.default=!0),a}),{});mainPlaylist||(formattedPlaylists[Object.keys(formattedPlaylists)[0]].default=!0);return formattedPlaylists}(audioPlaylists,sidxMapping,isAudioOnly):null,organizedVttGroup=vttPlaylists.length?function(playlists){let sidxMapping=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};return playlists.reduce(((a,playlist)=>{const label=playlist.attributes.lang||"text";return a[label]||(a[label]={language:label,default:!1,autoselect:!1,playlists:[],uri:""}),a[label].playlists.push(addSidxSegmentsToPlaylist(formatVttPlaylist(playlist),sidxMapping)),a}),{})}(vttPlaylists,sidxMapping):null,formattedPlaylists=videoPlaylists.concat(flattenMediaGroupPlaylists(organizedAudioGroup),flattenMediaGroupPlaylists(organizedVttGroup)),playlistTimelineStarts=formattedPlaylists.map((_ref24=>{let{timelineStarts:timelineStarts}=_ref24;return timelineStarts}));var playlists,timelineStarts;return manifest.timelineStarts=getUniqueTimelineStarts(playlistTimelineStarts),playlists=formattedPlaylists,timelineStarts=manifest.timelineStarts,playlists.forEach((playlist=>{playlist.mediaSequence=0,playlist.discontinuitySequence=timelineStarts.findIndex((function(_ref22){let{timeline:timeline}=_ref22;return timeline===playlist.timeline})),playlist.segments&&playlist.segments.forEach(((segment,index)=>{segment.number=index}))})),organizedAudioGroup&&(manifest.mediaGroups.AUDIO.audio=organizedAudioGroup),organizedVttGroup&&(manifest.mediaGroups.SUBTITLES.subs=organizedVttGroup),captions.length&&(manifest.mediaGroups["CLOSED-CAPTIONS"].cc=captions.reduce(((svcObj,svc)=>svc?(svc.forEach((service=>{const{channel:channel,language:language}=service;svcObj[language]={autoselect:!1,default:!1,instreamId:channel,language:language},service.hasOwnProperty("aspectRatio")&&(svcObj[language].aspectRatio=service.aspectRatio),service.hasOwnProperty("easyReader")&&(svcObj[language].easyReader=service.easyReader),service.hasOwnProperty("3D")&&(svcObj[language]["3D"]=service["3D"])})),svcObj):svcObj),{})),previousManifest?positionManifestOnTimeline({oldManifest:previousManifest,newManifest:manifest}):manifest},getLiveRValue=(attributes,time,duration)=>{const{NOW:NOW,clientOffset:clientOffset,availabilityStartTime:availabilityStartTime,timescale:timescale=1,periodStart:periodStart=0,minimumUpdatePeriod:minimumUpdatePeriod=0}=attributes,periodDuration=(NOW+clientOffset)/1e3+minimumUpdatePeriod-(availabilityStartTime+periodStart);return Math.ceil((periodDuration*timescale-time)/duration)},parseByTimeline=(attributes,segmentTimeline)=>{const{type:type,minimumUpdatePeriod:minimumUpdatePeriod=0,media:media="",sourceDuration:sourceDuration,timescale:timescale=1,startNumber:startNumber=1,periodStart:timeline}=attributes,segments=[];let time=-1;for(let sIndex=0;sIndex<segmentTimeline.length;sIndex++){const S=segmentTimeline[sIndex],duration=S.d,repeat=S.r||0,segmentTime=S.t||0;let count;if(time<0&&(time=segmentTime),segmentTime&&segmentTime>time&&(time=segmentTime),repeat<0){const nextS=sIndex+1;count=nextS===segmentTimeline.length?"dynamic"===type&&minimumUpdatePeriod>0&&media.indexOf("$Number$")>0?getLiveRValue(attributes,time,duration):(sourceDuration*timescale-time)/duration:(segmentTimeline[nextS].t-time)/duration}else count=repeat+1;const end=startNumber+segments.length+count;let number=startNumber+segments.length;for(;number<end;)segments.push({number:number,duration:duration/timescale,time:time,timeline:timeline}),time+=duration,number++}return segments},identifierPattern=/\$([A-z]*)(?:(%0)([0-9]+)d)?\$/g,constructTemplateUrl=(url,values)=>url.replace(identifierPattern,(values=>(match,identifier,format,width)=>{if("$$"===match)return"$";if(void 0===values[identifier])return match;const value=""+values[identifier];return"RepresentationID"===identifier?value:(width=format?parseInt(width,10):1,value.length>=width?value:"".concat(new Array(width-value.length+1).join("0")).concat(value))})(values)),segmentsFromTemplate=(attributes,segmentTimeline)=>{const templateValues={RepresentationID:attributes.id,Bandwidth:attributes.bandwidth||0},{initialization:initialization={sourceURL:"",range:""}}=attributes,mapSegment=urlTypeToSegment({baseUrl:attributes.baseUrl,source:constructTemplateUrl(initialization.sourceURL,templateValues),range:initialization.range}),segments=((attributes,segmentTimeline)=>attributes.duration||segmentTimeline?attributes.duration?parseByDuration(attributes):parseByTimeline(attributes,segmentTimeline):[{number:attributes.startNumber||1,duration:attributes.sourceDuration,time:0,timeline:attributes.periodStart}])(attributes,segmentTimeline);return segments.map((segment=>{templateValues.Number=segment.number,templateValues.Time=segment.time;const uri=constructTemplateUrl(attributes.media||"",templateValues),timescale=attributes.timescale||1,presentationTimeOffset=attributes.presentationTimeOffset||0,presentationTime=attributes.periodStart+(segment.time-presentationTimeOffset)/timescale;return{uri:uri,timeline:segment.timeline,duration:segment.duration,resolvedUri:resolveUrl$1(attributes.baseUrl||"",uri),map:mapSegment,number:segment.number,presentationTime:presentationTime}}))},segmentsFromList=(attributes,segmentTimeline)=>{const{duration:duration,segmentUrls:segmentUrls=[],periodStart:periodStart}=attributes;if(!duration&&!segmentTimeline||duration&&segmentTimeline)throw new Error(errors_SEGMENT_TIME_UNSPECIFIED);const segmentUrlMap=segmentUrls.map((segmentUrlObject=>((attributes,segmentUrl)=>{const{baseUrl:baseUrl,initialization:initialization={}}=attributes,initSegment=urlTypeToSegment({baseUrl:baseUrl,source:initialization.sourceURL,range:initialization.range}),segment=urlTypeToSegment({baseUrl:baseUrl,source:segmentUrl.media,range:segmentUrl.mediaRange});return segment.map=initSegment,segment})(attributes,segmentUrlObject)));let segmentTimeInfo;duration&&(segmentTimeInfo=parseByDuration(attributes)),segmentTimeline&&(segmentTimeInfo=parseByTimeline(attributes,segmentTimeline));return segmentTimeInfo.map(((segmentTime,index)=>{if(segmentUrlMap[index]){const segment=segmentUrlMap[index],timescale=attributes.timescale||1,presentationTimeOffset=attributes.presentationTimeOffset||0;return segment.timeline=segmentTime.timeline,segment.duration=segmentTime.duration,segment.number=segmentTime.number,segment.presentationTime=periodStart+(segmentTime.time-presentationTimeOffset)/timescale,segment}})).filter((segment=>segment))},generateSegments=_ref25=>{let segmentAttributes,segmentsFn,{attributes:attributes,segmentInfo:segmentInfo}=_ref25;segmentInfo.template?(segmentsFn=segmentsFromTemplate,segmentAttributes=merge$1(attributes,segmentInfo.template)):segmentInfo.base?(segmentsFn=segmentsFromBase,segmentAttributes=merge$1(attributes,segmentInfo.base)):segmentInfo.list&&(segmentsFn=segmentsFromList,segmentAttributes=merge$1(attributes,segmentInfo.list));const segmentsInfo={attributes:attributes};if(!segmentsFn)return segmentsInfo;const segments=segmentsFn(segmentAttributes,segmentInfo.segmentTimeline);if(segmentAttributes.duration){const{duration:duration,timescale:timescale=1}=segmentAttributes;segmentAttributes.duration=duration/timescale}else segments.length?segmentAttributes.duration=segments.reduce(((max,segment)=>Math.max(max,Math.ceil(segment.duration))),0):segmentAttributes.duration=0;return segmentsInfo.attributes=segmentAttributes,segmentsInfo.segments=segments,segmentInfo.base&&segmentAttributes.indexRange&&(segmentsInfo.sidx=segments[0],segmentsInfo.segments=[]),segmentsInfo},toPlaylists=representations=>representations.map(generateSegments),findChildren=(element,name)=>from(element.childNodes).filter((_ref26=>{let{tagName:tagName}=_ref26;return tagName===name})),getContent=element=>element.textContent.trim(),parseDuration=str=>{const match=/P(?:(\d*)Y)?(?:(\d*)M)?(?:(\d*)D)?(?:T(?:(\d*)H)?(?:(\d*)M)?(?:([\d.]*)S)?)?/.exec(str);if(!match)return 0;const[year,month,day,hour,minute,second]=match.slice(1);return 31536e3*parseFloat(year||0)+2592e3*parseFloat(month||0)+86400*parseFloat(day||0)+3600*parseFloat(hour||0)+60*parseFloat(minute||0)+parseFloat(second||0)},parsers={mediaPresentationDuration:value=>parseDuration(value),availabilityStartTime(value){return/^\d+-\d+-\d+T\d+:\d+:\d+(\.\d+)?$/.test(str=value)&&(str+="Z"),Date.parse(str)/1e3;var str},minimumUpdatePeriod:value=>parseDuration(value),suggestedPresentationDelay:value=>parseDuration(value),type:value=>value,timeShiftBufferDepth:value=>parseDuration(value),start:value=>parseDuration(value),width:value=>parseInt(value,10),height:value=>parseInt(value,10),bandwidth:value=>parseInt(value,10),frameRate:value=>(value=>parseFloat(value.split("/").reduce(((prev,current)=>prev/current))))(value),startNumber:value=>parseInt(value,10),timescale:value=>parseInt(value,10),presentationTimeOffset:value=>parseInt(value,10),duration(value){const parsedValue=parseInt(value,10);return isNaN(parsedValue)?parseDuration(value):parsedValue},d:value=>parseInt(value,10),t:value=>parseInt(value,10),r:value=>parseInt(value,10),DEFAULT:value=>value},parseAttributes=el=>el&&el.attributes?from(el.attributes).reduce(((a,e)=>{const parseFn=parsers[e.name]||parsers.DEFAULT;return a[e.name]=parseFn(e.value),a}),{}):{},keySystemsMap={"urn:uuid:1077efec-c0b2-4d02-ace3-3c1e52e2fb4b":"org.w3.clearkey","urn:uuid:edef8ba9-79d6-4ace-a3c8-27dcd51d21ed":"com.widevine.alpha","urn:uuid:9a04f079-9840-4286-ab92-e65be0885f95":"com.microsoft.playready","urn:uuid:f239e769-efa3-4850-9c16-a903c6932efb":"com.adobe.primetime"},buildBaseUrls=(referenceUrls,baseUrlElements)=>baseUrlElements.length?flatten(referenceUrls.map((function(reference){return baseUrlElements.map((function(baseUrlElement){return resolveUrl$1(reference,getContent(baseUrlElement))}))}))):referenceUrls,getSegmentInformation=adaptationSet=>{const segmentTemplate=findChildren(adaptationSet,"SegmentTemplate")[0],segmentList=findChildren(adaptationSet,"SegmentList")[0],segmentUrls=segmentList&&findChildren(segmentList,"SegmentURL").map((s=>merge$1({tag:"SegmentURL"},parseAttributes(s)))),segmentBase=findChildren(adaptationSet,"SegmentBase")[0],segmentTimelineParentNode=segmentList||segmentTemplate,segmentTimeline=segmentTimelineParentNode&&findChildren(segmentTimelineParentNode,"SegmentTimeline")[0],segmentInitializationParentNode=segmentList||segmentBase||segmentTemplate,segmentInitialization=segmentInitializationParentNode&&findChildren(segmentInitializationParentNode,"Initialization")[0],template=segmentTemplate&&parseAttributes(segmentTemplate);template&&segmentInitialization?template.initialization=segmentInitialization&&parseAttributes(segmentInitialization):template&&template.initialization&&(template.initialization={sourceURL:template.initialization});const segmentInfo={template:template,segmentTimeline:segmentTimeline&&findChildren(segmentTimeline,"S").map((s=>parseAttributes(s))),list:segmentList&&merge$1(parseAttributes(segmentList),{segmentUrls:segmentUrls,initialization:parseAttributes(segmentInitialization)}),base:segmentBase&&merge$1(parseAttributes(segmentBase),{initialization:parseAttributes(segmentInitialization)})};return Object.keys(segmentInfo).forEach((key=>{segmentInfo[key]||delete segmentInfo[key]})),segmentInfo},toRepresentations=(periodAttributes,periodBaseUrls,periodSegmentInfo)=>adaptationSet=>{const adaptationSetAttributes=parseAttributes(adaptationSet),adaptationSetBaseUrls=buildBaseUrls(periodBaseUrls,findChildren(adaptationSet,"BaseURL")),role=findChildren(adaptationSet,"Role")[0],roleAttributes={role:parseAttributes(role)};let attrs=merge$1(periodAttributes,adaptationSetAttributes,roleAttributes);const accessibility=findChildren(adaptationSet,"Accessibility")[0],captionServices=(service=>{if("urn:scte:dash:cc:cea-608:2015"===service.schemeIdUri)return("string"!=typeof service.value?[]:service.value.split(";")).map((value=>{let channel,language;return language=value,/^CC\d=/.test(value)?[channel,language]=value.split("="):/^CC\d$/.test(value)&&(channel=value),{channel:channel,language:language}}));if("urn:scte:dash:cc:cea-708:2015"===service.schemeIdUri)return("string"!=typeof service.value?[]:service.value.split(";")).map((value=>{const flags={channel:void 0,language:void 0,aspectRatio:1,easyReader:0,"3D":0};if(/=/.test(value)){const[channel,opts=""]=value.split("=");flags.channel=channel,flags.language=value,opts.split(",").forEach((opt=>{const[name,val]=opt.split(":");"lang"===name?flags.language=val:"er"===name?flags.easyReader=Number(val):"war"===name?flags.aspectRatio=Number(val):"3D"===name&&(flags["3D"]=Number(val))}))}else flags.language=value;return flags.channel&&(flags.channel="SERVICE"+flags.channel),flags}))})(parseAttributes(accessibility));captionServices&&(attrs=merge$1(attrs,{captionServices:captionServices}));const label=findChildren(adaptationSet,"Label")[0];if(label&&label.childNodes.length){const labelVal=label.childNodes[0].nodeValue.trim();attrs=merge$1(attrs,{label:labelVal})}const contentProtection=findChildren(adaptationSet,"ContentProtection").reduce(((acc,node)=>{const attributes=parseAttributes(node);attributes.schemeIdUri&&(attributes.schemeIdUri=attributes.schemeIdUri.toLowerCase());const keySystem=keySystemsMap[attributes.schemeIdUri];if(keySystem){acc[keySystem]={attributes:attributes};const psshNode=findChildren(node,"cenc:pssh")[0];if(psshNode){const pssh=getContent(psshNode);acc[keySystem].pssh=pssh&&decodeB64ToUint8Array(pssh)}}return acc}),{});Object.keys(contentProtection).length&&(attrs=merge$1(attrs,{contentProtection:contentProtection}));const segmentInfo=getSegmentInformation(adaptationSet),representations=findChildren(adaptationSet,"Representation"),adaptationSetSegmentInfo=merge$1(periodSegmentInfo,segmentInfo);return flatten(representations.map(((adaptationSetAttributes,adaptationSetBaseUrls,adaptationSetSegmentInfo)=>representation=>{const repBaseUrlElements=findChildren(representation,"BaseURL"),repBaseUrls=buildBaseUrls(adaptationSetBaseUrls,repBaseUrlElements),attributes=merge$1(adaptationSetAttributes,parseAttributes(representation)),representationSegmentInfo=getSegmentInformation(representation);return repBaseUrls.map((baseUrl=>({segmentInfo:merge$1(adaptationSetSegmentInfo,representationSegmentInfo),attributes:merge$1(attributes,{baseUrl:baseUrl})})))})(attrs,adaptationSetBaseUrls,adaptationSetSegmentInfo)))},toAdaptationSets=(mpdAttributes,mpdBaseUrls)=>(period,index)=>{const periodBaseUrls=buildBaseUrls(mpdBaseUrls,findChildren(period.node,"BaseURL")),periodAttributes=merge$1(mpdAttributes,{periodStart:period.attributes.start});"number"==typeof period.attributes.duration&&(periodAttributes.periodDuration=period.attributes.duration);const adaptationSets=findChildren(period.node,"AdaptationSet"),periodSegmentInfo=getSegmentInformation(period.node);return flatten(adaptationSets.map(toRepresentations(periodAttributes,periodBaseUrls,periodSegmentInfo)))},getPeriodStart=_ref27=>{let{attributes:attributes,priorPeriodAttributes:priorPeriodAttributes,mpdType:mpdType}=_ref27;return"number"==typeof attributes.start?attributes.start:priorPeriodAttributes&&"number"==typeof priorPeriodAttributes.start&&"number"==typeof priorPeriodAttributes.duration?priorPeriodAttributes.start+priorPeriodAttributes.duration:priorPeriodAttributes||"static"!==mpdType?null:0},inheritAttributes=function(mpd){let options=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};const{manifestUri:manifestUri="",NOW:NOW=Date.now(),clientOffset:clientOffset=0}=options,periodNodes=findChildren(mpd,"Period");if(!periodNodes.length)throw new Error(errors_INVALID_NUMBER_OF_PERIOD);const locations=findChildren(mpd,"Location"),mpdAttributes=parseAttributes(mpd),mpdBaseUrls=buildBaseUrls([manifestUri],findChildren(mpd,"BaseURL"));mpdAttributes.type=mpdAttributes.type||"static",mpdAttributes.sourceDuration=mpdAttributes.mediaPresentationDuration||0,mpdAttributes.NOW=NOW,mpdAttributes.clientOffset=clientOffset,locations.length&&(mpdAttributes.locations=locations.map(getContent));const periods=[];return periodNodes.forEach(((node,index)=>{const attributes=parseAttributes(node),priorPeriod=periods[index-1];attributes.start=getPeriodStart({attributes:attributes,priorPeriodAttributes:priorPeriod?priorPeriod.attributes:null,mpdType:mpdAttributes.type}),periods.push({node:node,attributes:attributes})})),{locations:mpdAttributes.locations,representationInfo:flatten(periods.map(toAdaptationSets(mpdAttributes,mpdBaseUrls)))}},stringToMpdXml=manifestString=>{if(""===manifestString)throw new Error(errors_DASH_EMPTY_MANIFEST);const parser=new DOMParser;let xml,mpd;try{xml=parser.parseFromString(manifestString,"application/xml"),mpd=xml&&"MPD"===xml.documentElement.tagName?xml.documentElement:null}catch(e){}if(!mpd||mpd&&mpd.getElementsByTagName("parsererror").length>0)throw new Error(errors_DASH_INVALID_XML);return mpd},parseUTCTiming=manifestString=>(mpd=>{const UTCTimingNode=findChildren(mpd,"UTCTiming")[0];if(!UTCTimingNode)return null;const attributes=parseAttributes(UTCTimingNode);switch(attributes.schemeIdUri){case"urn:mpeg:dash:utc:http-head:2014":case"urn:mpeg:dash:utc:http-head:2012":attributes.method="HEAD";break;case"urn:mpeg:dash:utc:http-xsdate:2014":case"urn:mpeg:dash:utc:http-iso:2014":case"urn:mpeg:dash:utc:http-xsdate:2012":case"urn:mpeg:dash:utc:http-iso:2012":attributes.method="GET";break;case"urn:mpeg:dash:utc:direct:2014":case"urn:mpeg:dash:utc:direct:2012":attributes.method="DIRECT",attributes.value=Date.parse(attributes.value);break;default:throw new Error(errors_UNSUPPORTED_UTC_TIMING_SCHEME)}return attributes})(stringToMpdXml(manifestString));var MAX_UINT32=Math.pow(2,32),getUint64=function(uint8){var value,dv=new DataView(uint8.buffer,uint8.byteOffset,uint8.byteLength);return dv.getBigUint64?(value=dv.getBigUint64(0))<Number.MAX_SAFE_INTEGER?Number(value):value:dv.getUint32(0)*MAX_UINT32+dv.getUint32(4)},parseSidx_1=function(data){var view=new DataView(data.buffer,data.byteOffset,data.byteLength),result={version:data[0],flags:new Uint8Array(data.subarray(1,4)),references:[],referenceId:view.getUint32(4),timescale:view.getUint32(8)},i=12;0===result.version?(result.earliestPresentationTime=view.getUint32(i),result.firstOffset=view.getUint32(i+4),i+=8):(result.earliestPresentationTime=getUint64(data.subarray(i)),result.firstOffset=getUint64(data.subarray(i+8)),i+=16),i+=2;var referenceCount=view.getUint16(i);for(i+=2;referenceCount>0;i+=12,referenceCount--)result.references.push({referenceType:(128&data[i])>>>7,referencedSize:2147483647&view.getUint32(i),subsegmentDuration:view.getUint32(i+4),startsWithSap:!!(128&data[i+8]),sapType:(112&data[i+8])>>>4,sapDeltaTime:268435455&view.getUint32(i+8)});return result},ID3=toUint8([73,68,51]),getId3Offset=function getId3Offset(bytes,offset){return void 0===offset&&(offset=0),(bytes=toUint8(bytes)).length-offset<10||!bytesMatch(bytes,ID3,{offset:offset})?offset:(offset+=function(bytes,offset){void 0===offset&&(offset=0);var flags=(bytes=toUint8(bytes))[offset+5],returnSize=bytes[offset+6]<<21|bytes[offset+7]<<14|bytes[offset+8]<<7|bytes[offset+9];return(16&flags)>>4?returnSize+20:returnSize+10}(bytes,offset),getId3Offset(bytes,offset))},normalizePath$1=function(path){return"string"==typeof path?stringToBytes(path):path},findBox=function findBox(bytes,paths,complete){void 0===complete&&(complete=!1),paths=function(paths){return Array.isArray(paths)?paths.map((function(p){return normalizePath$1(p)})):[normalizePath$1(paths)]}(paths),bytes=toUint8(bytes);var results=[];if(!paths.length)return results;for(var i=0;i<bytes.length;){var size=(bytes[i]<<24|bytes[i+1]<<16|bytes[i+2]<<8|bytes[i+3])>>>0,type=bytes.subarray(i+4,i+8);if(0===size)break;var end=i+size;if(end>bytes.length){if(complete)break;end=bytes.length}var data=bytes.subarray(i+8,end);bytesMatch(type,paths[0])&&(1===paths.length?results.push(data):results.push.apply(results,findBox(data,paths.slice(1),complete))),i=end}return results},EBML_TAGS={EBML:toUint8([26,69,223,163]),DocType:toUint8([66,130]),Segment:toUint8([24,83,128,103]),SegmentInfo:toUint8([21,73,169,102]),Tracks:toUint8([22,84,174,107]),Track:toUint8([174]),TrackNumber:toUint8([215]),DefaultDuration:toUint8([35,227,131]),TrackEntry:toUint8([174]),TrackType:toUint8([131]),FlagDefault:toUint8([136]),CodecID:toUint8([134]),CodecPrivate:toUint8([99,162]),VideoTrack:toUint8([224]),AudioTrack:toUint8([225]),Cluster:toUint8([31,67,182,117]),Timestamp:toUint8([231]),TimestampScale:toUint8([42,215,177]),BlockGroup:toUint8([160]),BlockDuration:toUint8([155]),Block:toUint8([161]),SimpleBlock:toUint8([163])},LENGTH_TABLE=[128,64,32,16,8,4,2,1],getvint=function(bytes,offset,removeLength,signed){void 0===removeLength&&(removeLength=!0),void 0===signed&&(signed=!1);var length=function(byte){for(var len=1,i=0;i<LENGTH_TABLE.length&&!(byte&LENGTH_TABLE[i]);i++)len++;return len}(bytes[offset]),valueBytes=bytes.subarray(offset,offset+length);return removeLength&&((valueBytes=Array.prototype.slice.call(bytes,offset,offset+length))[0]^=LENGTH_TABLE[length-1]),{length:length,value:bytesToNumber(valueBytes,{signed:signed}),bytes:valueBytes}},normalizePath=function normalizePath(path){return"string"==typeof path?path.match(/.{1,2}/g).map((function(p){return normalizePath(p)})):"number"==typeof path?numberToBytes(path):path},getInfinityDataSize=function getInfinityDataSize(id,bytes,offset){if(offset>=bytes.length)return bytes.length;var innerid=getvint(bytes,offset,!1);if(bytesMatch(id.bytes,innerid.bytes))return offset;var dataHeader=getvint(bytes,offset+innerid.length);return getInfinityDataSize(id,bytes,offset+dataHeader.length+dataHeader.value+innerid.length)},findEbml=function findEbml(bytes,paths){paths=function(paths){return Array.isArray(paths)?paths.map((function(p){return normalizePath(p)})):[normalizePath(paths)]}(paths),bytes=toUint8(bytes);var results=[];if(!paths.length)return results;for(var i=0;i<bytes.length;){var id=getvint(bytes,i,!1),dataHeader=getvint(bytes,i+id.length),dataStart=i+id.length+dataHeader.length;127===dataHeader.value&&(dataHeader.value=getInfinityDataSize(id,bytes,dataStart),dataHeader.value!==bytes.length&&(dataHeader.value-=dataStart));var dataEnd=dataStart+dataHeader.value>bytes.length?bytes.length:dataStart+dataHeader.value,data=bytes.subarray(dataStart,dataEnd);bytesMatch(paths[0],id.bytes)&&(1===paths.length?results.push(data):results=results.concat(findEbml(data,paths.slice(1)))),i+=id.length+dataHeader.length+data.length}return results},NAL_TYPE_ONE=toUint8([0,0,0,1]),NAL_TYPE_TWO=toUint8([0,0,1]),EMULATION_PREVENTION=toUint8([0,0,3]),discardEmulationPreventionBytes=function(bytes){for(var positions=[],i=1;i<bytes.length-2;)bytesMatch(bytes.subarray(i,i+3),EMULATION_PREVENTION)&&(positions.push(i+2),i++),i++;if(0===positions.length)return bytes;var newLength=bytes.length-positions.length,newData=new Uint8Array(newLength),sourceIndex=0;for(i=0;i<newLength;sourceIndex++,i++)sourceIndex===positions[0]&&(sourceIndex++,positions.shift()),newData[i]=bytes[sourceIndex];return newData},findNal=function(bytes,dataType,types,nalLimit){void 0===nalLimit&&(nalLimit=1/0),bytes=toUint8(bytes),types=[].concat(types);for(var nalStart,i=0,nalsFound=0;i<bytes.length&&(nalsFound<nalLimit||nalStart);){var nalOffset=void 0;if(bytesMatch(bytes.subarray(i),NAL_TYPE_ONE)?nalOffset=4:bytesMatch(bytes.subarray(i),NAL_TYPE_TWO)&&(nalOffset=3),nalOffset){if(nalsFound++,nalStart)return discardEmulationPreventionBytes(bytes.subarray(nalStart,i));var nalType=void 0;"h264"===dataType?nalType=31&bytes[i+nalOffset]:"h265"===dataType&&(nalType=bytes[i+nalOffset]>>1&63),-1!==types.indexOf(nalType)&&(nalStart=i+nalOffset),i+=nalOffset+("h264"===dataType?1:2)}else i++}return bytes.subarray(0,0)},CONSTANTS={webm:toUint8([119,101,98,109]),matroska:toUint8([109,97,116,114,111,115,107,97]),flac:toUint8([102,76,97,67]),ogg:toUint8([79,103,103,83]),ac3:toUint8([11,119]),riff:toUint8([82,73,70,70]),avi:toUint8([65,86,73]),wav:toUint8([87,65,86,69]),"3gp":toUint8([102,116,121,112,51,103]),mp4:toUint8([102,116,121,112]),fmp4:toUint8([115,116,121,112]),mov:toUint8([102,116,121,112,113,116]),moov:toUint8([109,111,111,118]),moof:toUint8([109,111,111,102])},_isLikely={aac:function(bytes){var offset=getId3Offset(bytes);return bytesMatch(bytes,[255,16],{offset:offset,mask:[255,22]})},mp3:function(bytes){var offset=getId3Offset(bytes);return bytesMatch(bytes,[255,2],{offset:offset,mask:[255,6]})},webm:function(bytes){var docType=findEbml(bytes,[EBML_TAGS.EBML,EBML_TAGS.DocType])[0];return bytesMatch(docType,CONSTANTS.webm)},mkv:function(bytes){var docType=findEbml(bytes,[EBML_TAGS.EBML,EBML_TAGS.DocType])[0];return bytesMatch(docType,CONSTANTS.matroska)},mp4:function(bytes){return!_isLikely["3gp"](bytes)&&!_isLikely.mov(bytes)&&(!(!bytesMatch(bytes,CONSTANTS.mp4,{offset:4})&&!bytesMatch(bytes,CONSTANTS.fmp4,{offset:4}))||(!(!bytesMatch(bytes,CONSTANTS.moof,{offset:4})&&!bytesMatch(bytes,CONSTANTS.moov,{offset:4}))||void 0))},mov:function(bytes){return bytesMatch(bytes,CONSTANTS.mov,{offset:4})},"3gp":function(bytes){return bytesMatch(bytes,CONSTANTS["3gp"],{offset:4})},ac3:function(bytes){var offset=getId3Offset(bytes);return bytesMatch(bytes,CONSTANTS.ac3,{offset:offset})},ts:function(bytes){if(bytes.length<189&&bytes.length>=1)return 71===bytes[0];for(var i=0;i+188<bytes.length&&i<188;){if(71===bytes[i]&&71===bytes[i+188])return!0;i+=1}return!1},flac:function(bytes){var offset=getId3Offset(bytes);return bytesMatch(bytes,CONSTANTS.flac,{offset:offset})},ogg:function(bytes){return bytesMatch(bytes,CONSTANTS.ogg)},avi:function(bytes){return bytesMatch(bytes,CONSTANTS.riff)&&bytesMatch(bytes,CONSTANTS.avi,{offset:8})},wav:function(bytes){return bytesMatch(bytes,CONSTANTS.riff)&&bytesMatch(bytes,CONSTANTS.wav,{offset:8})},h264:function(bytes){return function(bytes,type,nalLimit){return findNal(bytes,"h264",type,nalLimit)}(bytes,7,3).length},h265:function(bytes){return function(bytes,type,nalLimit){return findNal(bytes,"h265",type,nalLimit)}(bytes,[32,33],3).length}},isLikelyTypes=Object.keys(_isLikely).filter((function(t){return"ts"!==t&&"h264"!==t&&"h265"!==t})).concat(["ts","h264","h265"]);isLikelyTypes.forEach((function(type){var isLikelyFn=_isLikely[type];_isLikely[type]=function(bytes){return isLikelyFn(toUint8(bytes))}}));var secondsToVideoTs,secondsToAudioTs,videoTsToSeconds,audioTsToSeconds,isLikely=_isLikely,detectContainerForBytes=function(bytes){bytes=toUint8(bytes);for(var i=0;i<isLikelyTypes.length;i++){var type=isLikelyTypes[i];if(isLikely[type](bytes))return type}return""};secondsToVideoTs=function(seconds){return 9e4*seconds},secondsToAudioTs=function(seconds,sampleRate){return seconds*sampleRate},videoTsToSeconds=function(timestamp){return timestamp/9e4},audioTsToSeconds=function(timestamp,sampleRate){return timestamp/sampleRate};var clock_1=9e4;
+/*! @name @videojs/http-streaming @version 3.0.2 @license Apache-2.0 */
+const resolveUrl=function(baseUrl,relativeUrl){if(/^[a-z]+:/i.test(relativeUrl))return relativeUrl;/^data:/.test(baseUrl)&&(baseUrl=window.location&&window.location.href||"");var nativeURL="function"==typeof window.URL,protocolLess=/^\/\//.test(baseUrl),removeLocation=!window.location&&!/\/\//i.test(baseUrl);if(nativeURL?baseUrl=new window.URL(baseUrl,window.location||"http://example.com"):/\/\//i.test(baseUrl)||(baseUrl=urlToolkit.buildAbsoluteURL(window.location&&window.location.href||"",baseUrl)),nativeURL){var newUrl=new URL(relativeUrl,baseUrl);return removeLocation?newUrl.href.slice("http://example.com".length):protocolLess?newUrl.href.slice(newUrl.protocol.length):newUrl.href}return urlToolkit.buildAbsoluteURL(baseUrl,relativeUrl)},resolveManifestRedirect=(url,req)=>req&&req.responseURL&&url!==req.responseURL?req.responseURL:url,logger=source=>videojs.log.debug?videojs.log.debug.bind(videojs,"VHS:","".concat(source," >")):function(){};function merge(){const context=videojs.obj||videojs,fn=context.merge||context.mergeOptions;for(var _len24=arguments.length,args=new Array(_len24),_key24=0;_key24<_len24;_key24++)args[_key24]=arguments[_key24];return fn.apply(context,args)}function createTimeRanges(){const context=videojs.time||videojs,fn=context.createTimeRanges||context.createTimeRanges;for(var _len25=arguments.length,args=new Array(_len25),_key25=0;_key25<_len25;_key25++)args[_key25]=arguments[_key25];return fn.apply(context,args)}const filterRanges=function(timeRanges,predicate){const results=[];let i;if(timeRanges&&timeRanges.length)for(i=0;i<timeRanges.length;i++)predicate(timeRanges.start(i),timeRanges.end(i))&&results.push([timeRanges.start(i),timeRanges.end(i)]);return createTimeRanges(results)},findRange=function(buffered,time){return filterRanges(buffered,(function(start,end){return start-.1<=time&&end+.1>=time}))},findNextRange=function(timeRanges,time){return filterRanges(timeRanges,(function(start){return start-.03333333333333333>=time}))},printableRange=range=>{const strArr=[];if(!range||!range.length)return"";for(let i=0;i<range.length;i++)strArr.push(range.start(i)+" => "+range.end(i));return strArr.join(", ")},timeRangesToArray=timeRanges=>{const timeRangesList=[];for(let i=0;i<timeRanges.length;i++)timeRangesList.push({start:timeRanges.start(i),end:timeRanges.end(i)});return timeRangesList},lastBufferedEnd=function(a){if(a&&a.length&&a.end)return a.end(a.length-1)},timeAheadOf=function(range,startTime){let time=0;if(!range||!range.length)return time;for(let i=0;i<range.length;i++){const start=range.start(i),end=range.end(i);startTime>end||(time+=startTime>start&&startTime<=end?end-startTime:end-start)}return time},segmentDurationWithParts=(playlist,segment)=>{if(!segment.preload)return segment.duration;let result=0;return(segment.parts||[]).forEach((function(p){result+=p.duration})),(segment.preloadHints||[]).forEach((function(p){"PART"===p.type&&(result+=playlist.partTargetDuration)})),result},getPartsAndSegments=playlist=>(playlist.segments||[]).reduce(((acc,segment,si)=>(segment.parts?segment.parts.forEach((function(part,pi){acc.push({duration:part.duration,segmentIndex:si,partIndex:pi,part:part,segment:segment})})):acc.push({duration:segment.duration,segmentIndex:si,partIndex:null,segment:segment,part:null}),acc)),[]),getLastParts=media=>{const lastSegment=media.segments&&media.segments.length&&media.segments[media.segments.length-1];return lastSegment&&lastSegment.parts||[]},getKnownPartCount=_ref28=>{let{preloadSegment:preloadSegment}=_ref28;if(!preloadSegment)return;const{parts:parts,preloadHints:preloadHints}=preloadSegment;let partCount=(preloadHints||[]).reduce(((count,hint)=>count+("PART"===hint.type?1:0)),0);return partCount+=parts&&parts.length?parts.length:0,partCount},liveEdgeDelay=(main,media)=>{if(media.endList)return 0;if(main&&main.suggestedPresentationDelay)return main.suggestedPresentationDelay;const hasParts=getLastParts(media).length>0;return hasParts&&media.serverControl&&media.serverControl.partHoldBack?media.serverControl.partHoldBack:hasParts&&media.partTargetDuration?3*media.partTargetDuration:media.serverControl&&media.serverControl.holdBack?media.serverControl.holdBack:media.targetDuration?3*media.targetDuration:0},intervalDuration=function(playlist,endSequence,expired){if(void 0===endSequence&&(endSequence=playlist.mediaSequence+playlist.segments.length),endSequence<playlist.mediaSequence)return 0;const backward=function(playlist,endSequence){let result=0,i=endSequence-playlist.mediaSequence,segment=playlist.segments[i];if(segment){if(void 0!==segment.start)return{result:segment.start,precise:!0};if(void 0!==segment.end)return{result:segment.end-segment.duration,precise:!0}}for(;i--;){if(segment=playlist.segments[i],void 0!==segment.end)return{result:result+segment.end,precise:!0};if(result+=segmentDurationWithParts(playlist,segment),void 0!==segment.start)return{result:result+segment.start,precise:!0}}return{result:result,precise:!1}}(playlist,endSequence);if(backward.precise)return backward.result;const forward=function(playlist,endSequence){let segment,result=0,i=endSequence-playlist.mediaSequence;for(;i<playlist.segments.length;i++){if(segment=playlist.segments[i],void 0!==segment.start)return{result:segment.start-result,precise:!0};if(result+=segmentDurationWithParts(playlist,segment),void 0!==segment.end)return{result:segment.end-result,precise:!0}}return{result:-1,precise:!1}}(playlist,endSequence);return forward.precise?forward.result:backward.result+expired},duration=function(playlist,endSequence,expired){if(!playlist)return 0;if("number"!=typeof expired&&(expired=0),void 0===endSequence){if(playlist.totalDuration)return playlist.totalDuration;if(!playlist.endList)return window.Infinity}return intervalDuration(playlist,endSequence,expired)},sumDurations=function(_ref29){let{defaultDuration:defaultDuration,durationList:durationList,startIndex:startIndex,endIndex:endIndex}=_ref29,durations=0;if(startIndex>endIndex&&([startIndex,endIndex]=[endIndex,startIndex]),startIndex<0){for(let i=startIndex;i<Math.min(0,endIndex);i++)durations+=defaultDuration;startIndex=0}for(let i=startIndex;i<endIndex;i++)durations+=durationList[i].duration;return durations},playlistEnd=function(playlist,expired,useSafeLiveEnd,liveEdgePadding){if(!playlist||!playlist.segments)return null;if(playlist.endList)return duration(playlist);if(null===expired)return null;expired=expired||0;let lastSegmentEndTime=intervalDuration(playlist,playlist.mediaSequence+playlist.segments.length,expired);return useSafeLiveEnd&&(lastSegmentEndTime-=liveEdgePadding="number"==typeof liveEdgePadding?liveEdgePadding:liveEdgeDelay(null,playlist)),Math.max(0,lastSegmentEndTime)},isExcluded=function(playlist){return playlist.excludeUntil&&playlist.excludeUntil>Date.now()},isIncompatible=function(playlist){return playlist.excludeUntil&&playlist.excludeUntil===1/0},isEnabled=function(playlist){const excluded=isExcluded(playlist);return!playlist.disabled&&!excluded},hasAttribute=function(attr,playlist){return playlist.attributes&&playlist.attributes[attr]},isLowestEnabledRendition=(main,media)=>{if(1===main.playlists.length)return!0;const currentBandwidth=media.attributes.BANDWIDTH||Number.MAX_VALUE;return 0===main.playlists.filter((playlist=>!!isEnabled(playlist)&&(playlist.attributes.BANDWIDTH||0)<currentBandwidth)).length},playlistMatch=(a,b)=>!(!a&&!b||!a&&b||a&&!b)&&(a===b||(!(!a.id||!b.id||a.id!==b.id)||(!(!a.resolvedUri||!b.resolvedUri||a.resolvedUri!==b.resolvedUri)||!(!a.uri||!b.uri||a.uri!==b.uri)))),someAudioVariant=function(main,callback){const AUDIO=main&&main.mediaGroups&&main.mediaGroups.AUDIO||{};let found=!1;for(const groupName in AUDIO){for(const label in AUDIO[groupName])if(found=callback(AUDIO[groupName][label]),found)break;if(found)break}return!!found},isAudioOnly=main=>{if(!main||!main.playlists||!main.playlists.length){return someAudioVariant(main,(variant=>variant.playlists&&variant.playlists.length||variant.uri))}for(let i=0;i<main.playlists.length;i++){const playlist=main.playlists[i],CODECS=playlist.attributes&&playlist.attributes.CODECS;if(CODECS&&CODECS.split(",").every((c=>isAudioCodec(c))))continue;if(!someAudioVariant(main,(variant=>playlistMatch(playlist,variant))))return!1}return!0};var Playlist={liveEdgeDelay:liveEdgeDelay,duration:duration,seekable:function(playlist,expired,liveEdgePadding){const seekableStart=expired||0,seekableEnd=playlistEnd(playlist,expired,!0,liveEdgePadding);return null===seekableEnd?createTimeRanges():createTimeRanges(seekableStart,seekableEnd)},getMediaInfoForTime:function(_ref30){let{playlist:playlist,currentTime:currentTime,startingSegmentIndex:startingSegmentIndex,startingPartIndex:startingPartIndex,startTime:startTime,exactManifestTimings:exactManifestTimings}=_ref30,time=currentTime-startTime;const partsAndSegments=getPartsAndSegments(playlist);let startIndex=0;for(let i=0;i<partsAndSegments.length;i++){const partAndSegment=partsAndSegments[i];if(startingSegmentIndex===partAndSegment.segmentIndex&&("number"!=typeof startingPartIndex||"number"!=typeof partAndSegment.partIndex||startingPartIndex===partAndSegment.partIndex)){startIndex=i;break}}if(time<0){if(startIndex>0)for(let i=startIndex-1;i>=0;i--){const partAndSegment=partsAndSegments[i];if(time+=partAndSegment.duration,exactManifestTimings){if(time<0)continue}else if(time+.03333333333333333<=0)continue;return{partIndex:partAndSegment.partIndex,segmentIndex:partAndSegment.segmentIndex,startTime:startTime-sumDurations({defaultDuration:playlist.targetDuration,durationList:partsAndSegments,startIndex:startIndex,endIndex:i})}}return{partIndex:partsAndSegments[0]&&partsAndSegments[0].partIndex||null,segmentIndex:partsAndSegments[0]&&partsAndSegments[0].segmentIndex||0,startTime:currentTime}}if(startIndex<0){for(let i=startIndex;i<0;i++)if(time-=playlist.targetDuration,time<0)return{partIndex:partsAndSegments[0]&&partsAndSegments[0].partIndex||null,segmentIndex:partsAndSegments[0]&&partsAndSegments[0].segmentIndex||0,startTime:currentTime};startIndex=0}for(let i=startIndex;i<partsAndSegments.length;i++){const partAndSegment=partsAndSegments[i];if(time-=partAndSegment.duration,exactManifestTimings){if(time>0)continue}else if(time-.03333333333333333>=0)continue;return{partIndex:partAndSegment.partIndex,segmentIndex:partAndSegment.segmentIndex,startTime:startTime+sumDurations({defaultDuration:playlist.targetDuration,durationList:partsAndSegments,startIndex:startIndex,endIndex:i})}}return{segmentIndex:partsAndSegments[partsAndSegments.length-1].segmentIndex,partIndex:partsAndSegments[partsAndSegments.length-1].partIndex,startTime:currentTime}},isEnabled:isEnabled,isDisabled:function(playlist){return playlist.disabled},isExcluded:isExcluded,isIncompatible:isIncompatible,playlistEnd:playlistEnd,isAes:function(media){for(let i=0;i<media.segments.length;i++)if(media.segments[i].key)return!0;return!1},hasAttribute:hasAttribute,estimateSegmentRequestTime:function(segmentDuration,bandwidth,playlist){let bytesReceived=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0;if(!hasAttribute("BANDWIDTH",playlist))return NaN;const size=segmentDuration*playlist.attributes.BANDWIDTH;return(size-8*bytesReceived)/bandwidth},isLowestEnabledRendition:isLowestEnabledRendition,isAudioOnly:isAudioOnly,playlistMatch:playlistMatch,segmentDurationWithParts:segmentDurationWithParts};const{log:log}=videojs,createPlaylistID=(index,uri)=>"".concat(index,"-").concat(uri),groupID=(type,group,label)=>"placeholder-uri-".concat(type,"-").concat(group,"-").concat(label),forEachMediaGroup=(main,callback)=>{main.mediaGroups&&["AUDIO","SUBTITLES"].forEach((mediaType=>{if(main.mediaGroups[mediaType])for(const groupKey in main.mediaGroups[mediaType])for(const labelKey in main.mediaGroups[mediaType][groupKey]){const mediaProperties=main.mediaGroups[mediaType][groupKey][labelKey];callback(mediaProperties,mediaType,groupKey,labelKey)}}))},setupMediaPlaylist=_ref32=>{let{playlist:playlist,uri:uri,id:id}=_ref32;playlist.id=id,playlist.playlistErrors_=0,uri&&(playlist.uri=uri),playlist.attributes=playlist.attributes||{}},setupMediaPlaylists=main=>{let i=main.playlists.length;for(;i--;){const playlist=main.playlists[i];setupMediaPlaylist({playlist:playlist,id:createPlaylistID(i,playlist.uri)}),playlist.resolvedUri=resolveUrl(main.uri,playlist.uri),main.playlists[playlist.id]=playlist,main.playlists[playlist.uri]=playlist,playlist.attributes.BANDWIDTH||log.warn("Invalid playlist STREAM-INF detected. Missing BANDWIDTH attribute.")}},resolveMediaGroupUris=main=>{forEachMediaGroup(main,(properties=>{properties.uri&&(properties.resolvedUri=resolveUrl(main.uri,properties.uri))}))},addPropertiesToMain=function(main,uri){let createGroupID=arguments.length>2&&void 0!==arguments[2]?arguments[2]:groupID;main.uri=uri;for(let i=0;i<main.playlists.length;i++)if(!main.playlists[i].uri){const phonyUri="placeholder-uri-".concat(i);main.playlists[i].uri=phonyUri}const audioOnlyMain=isAudioOnly(main);forEachMediaGroup(main,((properties,mediaType,groupKey,labelKey)=>{if(!properties.playlists||!properties.playlists.length){if(audioOnlyMain&&"AUDIO"===mediaType&&!properties.uri)for(let i=0;i<main.playlists.length;i++){const p=main.playlists[i];if(p.attributes&&p.attributes.AUDIO&&p.attributes.AUDIO===groupKey)return}properties.playlists=[_extends$1({},properties)]}properties.playlists.forEach((function(p,i){const groupId=createGroupID(mediaType,groupKey,labelKey,p),id=createPlaylistID(i,groupId);p.uri?p.resolvedUri=p.resolvedUri||resolveUrl(main.uri,p.uri):(p.uri=0===i?groupId:id,p.resolvedUri=p.uri),p.id=p.id||id,p.attributes=p.attributes||{},main.playlists[p.id]=p,main.playlists[p.uri]=p}))})),setupMediaPlaylists(main),resolveMediaGroupUris(main)},{EventTarget:EventTarget$1}=videojs,updateSegment=(a,b)=>{if(!a)return b;const result=merge(a,b);if(a.preloadHints&&!b.preloadHints&&delete result.preloadHints,a.parts&&!b.parts)delete result.parts;else if(a.parts&&b.parts)for(let i=0;i<b.parts.length;i++)a.parts&&a.parts[i]&&(result.parts[i]=merge(a.parts[i],b.parts[i]));return!a.skipped&&b.skipped&&(result.skipped=!1),a.preload&&!b.preload&&(result.preload=!1),result},updateSegments=(original,update,offset)=>{const oldSegments=original.slice(),newSegments=update.slice();offset=offset||0;const result=[];let currentMap;for(let newIndex=0;newIndex<newSegments.length;newIndex++){const oldSegment=oldSegments[newIndex+offset],newSegment=newSegments[newIndex];oldSegment?(currentMap=oldSegment.map||currentMap,result.push(updateSegment(oldSegment,newSegment))):(currentMap&&!newSegment.map&&(newSegment.map=currentMap),result.push(newSegment))}return result},resolveSegmentUris=(segment,baseUri)=>{!segment.resolvedUri&&segment.uri&&(segment.resolvedUri=resolveUrl(baseUri,segment.uri)),segment.key&&!segment.key.resolvedUri&&(segment.key.resolvedUri=resolveUrl(baseUri,segment.key.uri)),segment.map&&!segment.map.resolvedUri&&(segment.map.resolvedUri=resolveUrl(baseUri,segment.map.uri)),segment.map&&segment.map.key&&!segment.map.key.resolvedUri&&(segment.map.key.resolvedUri=resolveUrl(baseUri,segment.map.key.uri)),segment.parts&&segment.parts.length&&segment.parts.forEach((p=>{p.resolvedUri||(p.resolvedUri=resolveUrl(baseUri,p.uri))})),segment.preloadHints&&segment.preloadHints.length&&segment.preloadHints.forEach((p=>{p.resolvedUri||(p.resolvedUri=resolveUrl(baseUri,p.uri))}))},getAllSegments=function(media){const segments=media.segments||[],preloadSegment=media.preloadSegment;if(preloadSegment&&preloadSegment.parts&&preloadSegment.parts.length){if(preloadSegment.preloadHints)for(let i=0;i<preloadSegment.preloadHints.length;i++)if("MAP"===preloadSegment.preloadHints[i].type)return segments;preloadSegment.duration=media.targetDuration,preloadSegment.preload=!0,segments.push(preloadSegment)}return segments},isPlaylistUnchanged=(a,b)=>a===b||a.segments&&b.segments&&a.segments.length===b.segments.length&&a.endList===b.endList&&a.mediaSequence===b.mediaSequence&&a.preloadSegment===b.preloadSegment,updateMain$1=function(main,newMedia){let unchangedCheck=arguments.length>2&&void 0!==arguments[2]?arguments[2]:isPlaylistUnchanged;const result=merge(main,{}),oldMedia=result.playlists[newMedia.id];if(!oldMedia)return null;if(unchangedCheck(oldMedia,newMedia))return null;newMedia.segments=getAllSegments(newMedia);const mergedPlaylist=merge(oldMedia,newMedia);if(mergedPlaylist.preloadSegment&&!newMedia.preloadSegment&&delete mergedPlaylist.preloadSegment,oldMedia.segments){if(newMedia.skip){newMedia.segments=newMedia.segments||[];for(let i=0;i<newMedia.skip.skippedSegments;i++)newMedia.segments.unshift({skipped:!0})}mergedPlaylist.segments=updateSegments(oldMedia.segments,newMedia.segments,newMedia.mediaSequence-oldMedia.mediaSequence)}mergedPlaylist.segments.forEach((segment=>{resolveSegmentUris(segment,mergedPlaylist.resolvedUri)}));for(let i=0;i<result.playlists.length;i++)result.playlists[i].id===newMedia.id&&(result.playlists[i]=mergedPlaylist);return result.playlists[newMedia.id]=mergedPlaylist,result.playlists[newMedia.uri]=mergedPlaylist,forEachMediaGroup(main,((properties,mediaType,groupKey,labelKey)=>{if(properties.playlists)for(let i=0;i<properties.playlists.length;i++)newMedia.id===properties.playlists[i].id&&(properties.playlists[i]=mergedPlaylist)})),result},refreshDelay=(media,update)=>{const segments=media.segments||[],lastSegment=segments[segments.length-1],lastPart=lastSegment&&lastSegment.parts&&lastSegment.parts[lastSegment.parts.length-1],lastDuration=lastPart&&lastPart.duration||lastSegment&&lastSegment.duration;return update&&lastDuration?1e3*lastDuration:500*(media.partTargetDuration||media.targetDuration||10)};class PlaylistLoader extends EventTarget$1{constructor(src,vhs){let options=arguments.length>2&&void 0!==arguments[2]?arguments[2]:{};if(super(),!src)throw new Error("A non-empty playlist URL or object is required");this.logger_=logger("PlaylistLoader");const{withCredentials:withCredentials=!1}=options;this.src=src,this.vhs_=vhs,this.withCredentials=withCredentials;const vhsOptions=vhs.options_;this.customTagParsers=vhsOptions&&vhsOptions.customTagParsers||[],this.customTagMappers=vhsOptions&&vhsOptions.customTagMappers||[],this.llhls=vhsOptions&&vhsOptions.llhls,this.state="HAVE_NOTHING",this.handleMediaupdatetimeout_=this.handleMediaupdatetimeout_.bind(this),this.on("mediaupdatetimeout",this.handleMediaupdatetimeout_)}handleMediaupdatetimeout_(){if("HAVE_METADATA"!==this.state)return;const media=this.media();let uri=resolveUrl(this.main.uri,media.uri);this.llhls&&(uri=((uri,media)=>{if(media.endList||!media.serverControl)return uri;const parameters={};if(media.serverControl.canBlockReload){const{preloadSegment:preloadSegment}=media;let nextMSN=media.mediaSequence+media.segments.length;if(preloadSegment){const parts=preloadSegment.parts||[],nextPart=getKnownPartCount(media)-1;nextPart>-1&&nextPart!==parts.length-1&&(parameters._HLS_part=nextPart),(nextPart>-1||parts.length)&&nextMSN--}parameters._HLS_msn=nextMSN}if(media.serverControl&&media.serverControl.canSkipUntil&&(parameters._HLS_skip=media.serverControl.canSkipDateranges?"v2":"YES"),Object.keys(parameters).length){const parsedUri=new window.URL(uri);["_HLS_skip","_HLS_msn","_HLS_part"].forEach((function(name){parameters.hasOwnProperty(name)&&parsedUri.searchParams.set(name,parameters[name])})),uri=parsedUri.toString()}return uri})(uri,media)),this.state="HAVE_CURRENT_METADATA",this.request=this.vhs_.xhr({uri:uri,withCredentials:this.withCredentials},((error,req)=>{if(this.request)return error?this.playlistRequestError(this.request,this.media(),"HAVE_METADATA"):void this.haveMetadata({playlistString:this.request.responseText,url:this.media().uri,id:this.media().id})}))}playlistRequestError(xhr,playlist,startingState){const{uri:uri,id:id}=playlist;this.request=null,startingState&&(this.state=startingState),this.error={playlist:this.main.playlists[id],status:xhr.status,message:"HLS playlist request error at URL: ".concat(uri,"."),responseText:xhr.responseText,code:xhr.status>=500?4:2},this.trigger("error")}parseManifest_(_ref33){let{url:url,manifestString:manifestString}=_ref33;return(_ref31=>{let{onwarn:onwarn,oninfo:oninfo,manifestString:manifestString,customTagParsers:customTagParsers=[],customTagMappers:customTagMappers=[],llhls:llhls}=_ref31;const parser=new Parser;onwarn&&parser.on("warn",onwarn),oninfo&&parser.on("info",oninfo),customTagParsers.forEach((customParser=>parser.addParser(customParser))),customTagMappers.forEach((mapper=>parser.addTagMapper(mapper))),parser.push(manifestString),parser.end();const manifest=parser.manifest;if(llhls||(["preloadSegment","skip","serverControl","renditionReports","partInf","partTargetDuration"].forEach((function(k){manifest.hasOwnProperty(k)&&delete manifest[k]})),manifest.segments&&manifest.segments.forEach((function(segment){["parts","preloadHints"].forEach((function(k){segment.hasOwnProperty(k)&&delete segment[k]}))}))),!manifest.targetDuration){let targetDuration=10;manifest.segments&&manifest.segments.length&&(targetDuration=manifest.segments.reduce(((acc,s)=>Math.max(acc,s.duration)),0)),onwarn&&onwarn("manifest has no targetDuration defaulting to ".concat(targetDuration)),manifest.targetDuration=targetDuration}const parts=getLastParts(manifest);if(parts.length&&!manifest.partTargetDuration){const partTargetDuration=parts.reduce(((acc,p)=>Math.max(acc,p.duration)),0);onwarn&&(onwarn("manifest has no partTargetDuration defaulting to ".concat(partTargetDuration)),log.error("LL-HLS manifest has parts but lacks required #EXT-X-PART-INF:PART-TARGET value. See https://datatracker.ietf.org/doc/html/draft-pantos-hls-rfc8216bis-09#section-4.4.3.7. Playback is not guaranteed.")),manifest.partTargetDuration=partTargetDuration}return manifest})({onwarn:_ref34=>{let{message:message}=_ref34;return this.logger_("m3u8-parser warn for ".concat(url,": ").concat(message))},oninfo:_ref35=>{let{message:message}=_ref35;return this.logger_("m3u8-parser info for ".concat(url,": ").concat(message))},manifestString:manifestString,customTagParsers:this.customTagParsers,customTagMappers:this.customTagMappers,llhls:this.llhls})}haveMetadata(_ref36){let{playlistString:playlistString,playlistObject:playlistObject,url:url,id:id}=_ref36;this.request=null,this.state="HAVE_METADATA";const playlist=playlistObject||this.parseManifest_({url:url,manifestString:playlistString});playlist.lastRequest=Date.now(),setupMediaPlaylist({playlist:playlist,uri:url,id:id});const update=updateMain$1(this.main,playlist);this.targetDuration=playlist.partTargetDuration||playlist.targetDuration,this.pendingMedia_=null,update?(this.main=update,this.media_=this.main.playlists[id]):this.trigger("playlistunchanged"),this.updateMediaUpdateTimeout_(refreshDelay(this.media(),!!update)),this.trigger("loadedplaylist")}dispose(){this.trigger("dispose"),this.stopRequest(),window.clearTimeout(this.mediaUpdateTimeout),window.clearTimeout(this.finalRenditionTimeout),this.off()}stopRequest(){if(this.request){const oldRequest=this.request;this.request=null,oldRequest.onreadystatechange=null,oldRequest.abort()}}media(playlist,shouldDelay){if(!playlist)return this.media_;if("HAVE_NOTHING"===this.state)throw new Error("Cannot switch media playlist from "+this.state);if("string"==typeof playlist){if(!this.main.playlists[playlist])throw new Error("Unknown playlist URI: "+playlist);playlist=this.main.playlists[playlist]}if(window.clearTimeout(this.finalRenditionTimeout),shouldDelay){const delay=(playlist.partTargetDuration||playlist.targetDuration)/2*1e3||5e3;return void(this.finalRenditionTimeout=window.setTimeout(this.media.bind(this,playlist,!1),delay))}const startingState=this.state,mediaChange=!this.media_||playlist.id!==this.media_.id,mainPlaylistRef=this.main.playlists[playlist.id];if(mainPlaylistRef&&mainPlaylistRef.endList||playlist.endList&&playlist.segments.length)return this.request&&(this.request.onreadystatechange=null,this.request.abort(),this.request=null),this.state="HAVE_METADATA",this.media_=playlist,void(mediaChange&&(this.trigger("mediachanging"),"HAVE_MAIN_MANIFEST"===startingState?this.trigger("loadedmetadata"):this.trigger("mediachange")));if(this.updateMediaUpdateTimeout_(refreshDelay(playlist,!0)),mediaChange){if(this.state="SWITCHING_MEDIA",this.request){if(playlist.resolvedUri===this.request.url)return;this.request.onreadystatechange=null,this.request.abort(),this.request=null}this.media_&&this.trigger("mediachanging"),this.pendingMedia_=playlist,this.request=this.vhs_.xhr({uri:playlist.resolvedUri,withCredentials:this.withCredentials},((error,req)=>{if(this.request){if(playlist.lastRequest=Date.now(),playlist.resolvedUri=resolveManifestRedirect(playlist.resolvedUri,req),error)return this.playlistRequestError(this.request,playlist,startingState);this.haveMetadata({playlistString:req.responseText,url:playlist.uri,id:playlist.id}),"HAVE_MAIN_MANIFEST"===startingState?this.trigger("loadedmetadata"):this.trigger("mediachange")}}))}}pause(){this.mediaUpdateTimeout&&(window.clearTimeout(this.mediaUpdateTimeout),this.mediaUpdateTimeout=null),this.stopRequest(),"HAVE_NOTHING"===this.state&&(this.started=!1),"SWITCHING_MEDIA"===this.state?this.media_?this.state="HAVE_METADATA":this.state="HAVE_MAIN_MANIFEST":"HAVE_CURRENT_METADATA"===this.state&&(this.state="HAVE_METADATA")}load(shouldDelay){this.mediaUpdateTimeout&&(window.clearTimeout(this.mediaUpdateTimeout),this.mediaUpdateTimeout=null);const media=this.media();if(shouldDelay){const delay=media?(media.partTargetDuration||media.targetDuration)/2*1e3:5e3;this.mediaUpdateTimeout=window.setTimeout((()=>{this.mediaUpdateTimeout=null,this.load()}),delay)}else this.started?media&&!media.endList?this.trigger("mediaupdatetimeout"):this.trigger("loadedplaylist"):this.start()}updateMediaUpdateTimeout_(delay){this.mediaUpdateTimeout&&(window.clearTimeout(this.mediaUpdateTimeout),this.mediaUpdateTimeout=null),this.media()&&!this.media().endList&&(this.mediaUpdateTimeout=window.setTimeout((()=>{this.mediaUpdateTimeout=null,this.trigger("mediaupdatetimeout"),this.updateMediaUpdateTimeout_(delay)}),delay))}start(){if(this.started=!0,"object"==typeof this.src)return this.src.uri||(this.src.uri=window.location.href),this.src.resolvedUri=this.src.uri,void setTimeout((()=>{this.setupInitialPlaylist(this.src)}),0);this.request=this.vhs_.xhr({uri:this.src,withCredentials:this.withCredentials},((error,req)=>{if(!this.request)return;if(this.request=null,error)return this.error={status:req.status,message:"HLS playlist request error at URL: ".concat(this.src,"."),responseText:req.responseText,code:2},"HAVE_NOTHING"===this.state&&(this.started=!1),this.trigger("error");this.src=resolveManifestRedirect(this.src,req);const manifest=this.parseManifest_({manifestString:req.responseText,url:this.src});this.setupInitialPlaylist(manifest)}))}srcUri(){return"string"==typeof this.src?this.src:this.src.uri}setupInitialPlaylist(manifest){if(this.state="HAVE_MAIN_MANIFEST",manifest.playlists)return this.main=manifest,addPropertiesToMain(this.main,this.srcUri()),manifest.playlists.forEach((playlist=>{playlist.segments=getAllSegments(playlist),playlist.segments.forEach((segment=>{resolveSegmentUris(segment,playlist.resolvedUri)}))})),this.trigger("loadedplaylist"),void(this.request||this.media(this.main.playlists[0]));const uri=this.srcUri()||window.location.href;this.main=((media,uri)=>{const id=createPlaylistID(0,uri),main={mediaGroups:{AUDIO:{},VIDEO:{},"CLOSED-CAPTIONS":{},SUBTITLES:{}},uri:window.location.href,resolvedUri:window.location.href,playlists:[{uri:uri,id:id,resolvedUri:uri,attributes:{}}]};return main.playlists[id]=main.playlists[0],main.playlists[uri]=main.playlists[0],main})(0,uri),this.haveMetadata({playlistObject:manifest,url:uri,id:this.main.playlists[0].id}),this.trigger("loadedmetadata")}}const{xhr:videojsXHR}=videojs,callbackWrapper=function(request,error,response,callback){const reqResponse="arraybuffer"===request.responseType?request.response:request.responseText;!error&&reqResponse&&(request.responseTime=Date.now(),request.roundTripTime=request.responseTime-request.requestTime,request.bytesReceived=reqResponse.byteLength||reqResponse.length,request.bandwidth||(request.bandwidth=Math.floor(request.bytesReceived/request.roundTripTime*8*1e3))),response.headers&&(request.responseHeaders=response.headers),error&&"ETIMEDOUT"===error.code&&(request.timedout=!0),error||request.aborted||200===response.statusCode||206===response.statusCode||0===response.statusCode||(error=new Error("XHR Failed with a response of: "+(request&&(reqResponse||request.responseText)))),callback(error,request)},xhrFactory=function(){const xhr=function XhrFunction(options,callback){options=merge({timeout:45e3},options);const beforeRequest=XhrFunction.beforeRequest||videojs.Vhs.xhr.beforeRequest;if(beforeRequest&&"function"==typeof beforeRequest){const newOptions=beforeRequest(options);newOptions&&(options=newOptions)}const request=(!0===videojs.Vhs.xhr.original?videojsXHR:videojs.Vhs.xhr)(options,(function(error,response){return callbackWrapper(request,error,response,callback)})),originalAbort=request.abort;return request.abort=function(){return request.aborted=!0,originalAbort.apply(request,arguments)},request.uri=options.uri,request.requestTime=Date.now(),request};return xhr.original=!0,xhr},segmentXhrHeaders=function(segment){const headers={};return segment.byterange&&(headers.Range=function(byterange){let byterangeEnd;const byterangeStart=byterange.offset;return byterangeEnd="bigint"==typeof byterange.offset||"bigint"==typeof byterange.length?window.BigInt(byterange.offset)+window.BigInt(byterange.length)-window.BigInt(1):byterange.offset+byterange.length-1,"bytes="+byterangeStart+"-"+byterangeEnd}(segment.byterange)),headers},textRange=function(range,i){return range.start(i)+"-"+range.end(i)},formatHexString=function(e,i){const value=e.toString(16);return"00".substring(0,2-value.length)+value+(i%2?" ":"")},formatAsciiString=function(e){return e>=32&&e<126?String.fromCharCode(e):"."},createTransferableMessage=function(message){const transferable={};return Object.keys(message).forEach((key=>{const value=message[key];isArrayBufferView(value)?transferable[key]={bytes:value.buffer,byteOffset:value.byteOffset,byteLength:value.byteLength}:transferable[key]=value})),transferable},initSegmentId=function(initSegment){const byterange=initSegment.byterange||{length:1/0,offset:0};return[byterange.length,byterange.offset,initSegment.resolvedUri].join(",")},segmentKeyId=function(key){return key.resolvedUri},hexDump=data=>{const bytes=Array.prototype.slice.call(data);let hex,ascii,result="";for(let j=0;j<bytes.length/16;j++)hex=bytes.slice(16*j,16*j+16).map(formatHexString).join(""),ascii=bytes.slice(16*j,16*j+16).map(formatAsciiString).join(""),result+=hex+" "+ascii+"\n";return result};var utils=Object.freeze({__proto__:null,createTransferableMessage:createTransferableMessage,initSegmentId:initSegmentId,segmentKeyId:segmentKeyId,hexDump:hexDump,tagDump:_ref37=>{let{bytes:bytes}=_ref37;return hexDump(bytes)},textRanges:ranges=>{let i,result="";for(i=0;i<ranges.length;i++)result+=textRange(ranges,i)+" ";return result}});const getProgramTime=_ref38=>{let{playlist:playlist,time:time,callback:callback}=_ref38;if(!callback)throw new Error("getProgramTime: callback must be provided");if(!playlist||void 0===time)return callback({message:"getProgramTime: playlist and time must be provided"});const matchedSegment=((time,playlist)=>{if(!playlist||!playlist.segments||0===playlist.segments.length)return null;let segment,segmentEnd=0;for(let i=0;i<playlist.segments.length&&(segment=playlist.segments[i],segmentEnd=segment.videoTimingInfo?segment.videoTimingInfo.transmuxedPresentationEnd:segmentEnd+segment.duration,!(time<=segmentEnd));i++);const lastSegment=playlist.segments[playlist.segments.length-1];if(lastSegment.videoTimingInfo&&lastSegment.videoTimingInfo.transmuxedPresentationEnd<time)return null;if(time>segmentEnd){if(time>segmentEnd+.25*lastSegment.duration)return null;segment=lastSegment}return{segment:segment,estimatedStart:segment.videoTimingInfo?segment.videoTimingInfo.transmuxedPresentationStart:segmentEnd-segment.duration,type:segment.videoTimingInfo?"accurate":"estimate"}})(time,playlist);if(!matchedSegment)return callback({message:"valid programTime was not found"});if("estimate"===matchedSegment.type)return callback({message:"Accurate programTime could not be determined. Please seek to e.seekTime and try again",seekTime:matchedSegment.estimatedStart});const programTimeObject={mediaSeconds:time},programTime=((playerTime,segment)=>{if(!segment.dateTimeObject)return null;const transmuxerPrependedSeconds=segment.videoTimingInfo.transmuxerPrependedSeconds,offsetFromSegmentStart=playerTime-(segment.videoTimingInfo.transmuxedPresentationStart+transmuxerPrependedSeconds);return new Date(segment.dateTimeObject.getTime()+1e3*offsetFromSegmentStart)})(time,matchedSegment.segment);return programTime&&(programTimeObject.programDateTime=programTime.toISOString()),callback(null,programTimeObject)},seekToProgramTime=_ref39=>{let{programTime:programTime,playlist:playlist,retryCount:retryCount=2,seekTo:seekTo,pauseAfterSeek:pauseAfterSeek=!0,tech:tech,callback:callback}=_ref39;if(!callback)throw new Error("seekToProgramTime: callback must be provided");if(void 0===programTime||!playlist||!seekTo)return callback({message:"seekToProgramTime: programTime, seekTo and playlist must be provided"});if(!playlist.endList&&!tech.hasStarted_)return callback({message:"player must be playing a live stream to start buffering"});if(!(playlist=>{if(!playlist.segments||0===playlist.segments.length)return!1;for(let i=0;i<playlist.segments.length;i++)if(!playlist.segments[i].dateTimeObject)return!1;return!0})(playlist))return callback({message:"programDateTime tags must be provided in the manifest "+playlist.resolvedUri});const matchedSegment=((programTime,playlist)=>{let dateTimeObject;try{dateTimeObject=new Date(programTime)}catch(e){return null}if(!playlist||!playlist.segments||0===playlist.segments.length)return null;let segment=playlist.segments[0];if(dateTimeObject<segment.dateTimeObject)return null;for(let i=0;i<playlist.segments.length-1&&(segment=playlist.segments[i],!(dateTimeObject<playlist.segments[i+1].dateTimeObject));i++);const lastSegment=playlist.segments[playlist.segments.length-1],lastSegmentStart=lastSegment.dateTimeObject,lastSegmentDuration=lastSegment.videoTimingInfo?(videoTimingInfo=lastSegment.videoTimingInfo).transmuxedPresentationEnd-videoTimingInfo.transmuxedPresentationStart-videoTimingInfo.transmuxerPrependedSeconds:lastSegment.duration+.25*lastSegment.duration;var videoTimingInfo;return dateTimeObject>new Date(lastSegmentStart.getTime()+1e3*lastSegmentDuration)?null:(dateTimeObject>lastSegmentStart&&(segment=lastSegment),{segment:segment,estimatedStart:segment.videoTimingInfo?segment.videoTimingInfo.transmuxedPresentationStart:Playlist.duration(playlist,playlist.mediaSequence+playlist.segments.indexOf(segment)),type:segment.videoTimingInfo?"accurate":"estimate"})})(programTime,playlist);if(!matchedSegment)return callback({message:"".concat(programTime," was not found in the stream")});const segment=matchedSegment.segment,mediaOffset=((comparisonTimeStamp,programTime)=>{let segmentDateTime,programDateTime;try{segmentDateTime=new Date(comparisonTimeStamp),programDateTime=new Date(programTime)}catch(e){}const segmentTimeEpoch=segmentDateTime.getTime();return(programDateTime.getTime()-segmentTimeEpoch)/1e3})(segment.dateTimeObject,programTime);if("estimate"===matchedSegment.type)return 0===retryCount?callback({message:"".concat(programTime," is not buffered yet. Try again")}):(seekTo(matchedSegment.estimatedStart+mediaOffset),void tech.one("seeked",(()=>{seekToProgramTime({programTime:programTime,playlist:playlist,retryCount:retryCount-1,seekTo:seekTo,pauseAfterSeek:pauseAfterSeek,tech:tech,callback:callback})})));const seekToTime=segment.start+mediaOffset;tech.one("seeked",(()=>callback(null,tech.currentTime()))),pauseAfterSeek&&tech.pause(),seekTo(seekToTime)},callbackOnCompleted=(request,cb)=>{if(4===request.readyState)return cb()},containerRequest=(uri,xhr,cb)=>{let id3Offset,bytes=[],finished=!1;const endRequestAndCallback=function(err,req,type,_bytes){return req.abort(),finished=!0,cb(err,req,type,_bytes)},progressListener=function(error,request){if(finished)return;if(error)return endRequestAndCallback(error,request,"",bytes);const newPart=request.responseText.substring(bytes&&bytes.byteLength||0,request.responseText.length);if(bytes=function(){for(var _len=arguments.length,buffers=new Array(_len),_key=0;_key<_len;_key++)buffers[_key]=arguments[_key];if(buffers=buffers.filter((function(b){return b&&(b.byteLength||b.length)&&"string"!=typeof b})),buffers.length<=1)return toUint8(buffers[0]);var totalLen=buffers.reduce((function(total,buf,i){return total+(buf.byteLength||buf.length)}),0),tempBuffer=new Uint8Array(totalLen),offset=0;return buffers.forEach((function(buf){buf=toUint8(buf),tempBuffer.set(buf,offset),offset+=buf.byteLength})),tempBuffer}(bytes,stringToBytes(newPart,!0)),id3Offset=id3Offset||getId3Offset(bytes),bytes.length<10||id3Offset&&bytes.length<id3Offset+2)return callbackOnCompleted(request,(()=>endRequestAndCallback(error,request,"",bytes)));const type=detectContainerForBytes(bytes);return"ts"===type&&bytes.length<188||!type&&bytes.length<376?callbackOnCompleted(request,(()=>endRequestAndCallback(error,request,"",bytes))):endRequestAndCallback(null,request,type,bytes)},options={uri:uri,beforeSend(request){request.overrideMimeType("text/plain; charset=x-user-defined"),request.addEventListener("progress",(function(_ref40){let{total:total,loaded:loaded}=_ref40;return callbackWrapper(request,null,{statusCode:request.status},progressListener)}))}},request=xhr(options,(function(error,response){return callbackWrapper(request,error,response,progressListener)}));return request},{EventTarget:EventTarget}=videojs,dashPlaylistUnchanged=function(a,b){if(!isPlaylistUnchanged(a,b))return!1;if(a.sidx&&b.sidx&&(a.sidx.offset!==b.sidx.offset||a.sidx.length!==b.sidx.length))return!1;if(!a.sidx&&b.sidx||a.sidx&&!b.sidx)return!1;if(a.segments&&!b.segments||!a.segments&&b.segments)return!1;if(!a.segments&&!b.segments)return!0;for(let i=0;i<a.segments.length;i++){const aSegment=a.segments[i],bSegment=b.segments[i];if(aSegment.uri!==bSegment.uri)return!1;if(!aSegment.byterange&&!bSegment.byterange)continue;const aByterange=aSegment.byterange,bByterange=bSegment.byterange;if(aByterange&&!bByterange||!aByterange&&bByterange)return!1;if(aByterange.offset!==bByterange.offset||aByterange.length!==bByterange.length)return!1}return!0},dashGroupId=(type,group,label,playlist)=>{const playlistId=playlist.attributes.NAME||label;return"placeholder-uri-".concat(type,"-").concat(group,"-").concat(playlistId)},parseMainXml=_ref41=>{let{mainXml:mainXml,srcUrl:srcUrl,clientOffset:clientOffset,sidxMapping:sidxMapping,previousManifest:previousManifest}=_ref41;const manifest=function(manifestString){let options=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};const parsedManifestInfo=inheritAttributes(stringToMpdXml(manifestString),options),playlists=toPlaylists(parsedManifestInfo.representationInfo);return toM3u8({dashPlaylists:playlists,locations:parsedManifestInfo.locations,sidxMapping:options.sidxMapping,previousManifest:options.previousManifest})}(mainXml,{manifestUri:srcUrl,clientOffset:clientOffset,sidxMapping:sidxMapping,previousManifest:previousManifest});return addPropertiesToMain(manifest,srcUrl,dashGroupId),manifest},updateMain=(oldMain,newMain,sidxMapping)=>{let noChanges=!0,update=merge(oldMain,{duration:newMain.duration,minimumUpdatePeriod:newMain.minimumUpdatePeriod,timelineStarts:newMain.timelineStarts});for(let i=0;i<newMain.playlists.length;i++){const playlist=newMain.playlists[i];if(playlist.sidx){const sidxKey=generateSidxKey(playlist.sidx);sidxMapping&&sidxMapping[sidxKey]&&sidxMapping[sidxKey].sidx&&addSidxSegmentsToPlaylist$1(playlist,sidxMapping[sidxKey].sidx,playlist.sidx.resolvedUri)}const playlistUpdate=updateMain$1(update,playlist,dashPlaylistUnchanged);playlistUpdate&&(update=playlistUpdate,noChanges=!1)}return forEachMediaGroup(newMain,((properties,type,group,label)=>{if(properties.playlists&&properties.playlists.length){const id=properties.playlists[0].id,playlistUpdate=updateMain$1(update,properties.playlists[0],dashPlaylistUnchanged);playlistUpdate&&(update=playlistUpdate,label in update.mediaGroups[type][group]||(update.mediaGroups[type][group][label]=properties),update.mediaGroups[type][group][label].playlists[0]=update.playlists[id],noChanges=!1)}})),((update,newMain)=>{forEachMediaGroup(update,((properties,type,group,label)=>{label in newMain.mediaGroups[type][group]||delete update.mediaGroups[type][group][label]}))})(update,newMain),newMain.minimumUpdatePeriod!==oldMain.minimumUpdatePeriod&&(noChanges=!1),noChanges?null:update},equivalentSidx=(a,b)=>(Boolean(!a.map&&!b.map)||Boolean(a.map&&b.map&&a.map.byterange.offset===b.map.byterange.offset&&a.map.byterange.length===b.map.byterange.length))&&a.uri===b.uri&&a.byterange.offset===b.byterange.offset&&a.byterange.length===b.byterange.length,compareSidxEntry=(playlists,oldSidxMapping)=>{const newSidxMapping={};for(const id in playlists){const currentSidxInfo=playlists[id].sidx;if(currentSidxInfo){const key=generateSidxKey(currentSidxInfo);if(!oldSidxMapping[key])break;const savedSidxInfo=oldSidxMapping[key].sidxInfo;equivalentSidx(savedSidxInfo,currentSidxInfo)&&(newSidxMapping[key]=oldSidxMapping[key])}}return newSidxMapping};class DashPlaylistLoader extends EventTarget{constructor(srcUrlOrPlaylist,vhs){let options=arguments.length>2&&void 0!==arguments[2]?arguments[2]:{},mainPlaylistLoader=arguments.length>3?arguments[3]:void 0;super(),this.mainPlaylistLoader_=mainPlaylistLoader||this,mainPlaylistLoader||(this.isMain_=!0);const{withCredentials:withCredentials=!1}=options;if(this.vhs_=vhs,this.withCredentials=withCredentials,!srcUrlOrPlaylist)throw new Error("A non-empty playlist URL or object is required");this.on("minimumUpdatePeriod",(()=>{this.refreshXml_()})),this.on("mediaupdatetimeout",(()=>{this.refreshMedia_(this.media().id)})),this.state="HAVE_NOTHING",this.loadedPlaylists_={},this.logger_=logger("DashPlaylistLoader"),this.isMain_?(this.mainPlaylistLoader_.srcUrl=srcUrlOrPlaylist,this.mainPlaylistLoader_.sidxMapping_={}):this.childPlaylist_=srcUrlOrPlaylist}requestErrored_(err,request,startingState){return!this.request||(this.request=null,err?(this.error="object"!=typeof err||err instanceof Error?{status:request.status,message:"DASH request error at URL: "+request.uri,response:request.response,code:2}:err,startingState&&(this.state=startingState),this.trigger("error"),!0):void 0)}addSidxSegments_(playlist,startingState,cb){const sidxKey=playlist.sidx&&generateSidxKey(playlist.sidx);if(!playlist.sidx||!sidxKey||this.mainPlaylistLoader_.sidxMapping_[sidxKey])return void(this.mediaRequest_=window.setTimeout((()=>cb(!1)),0));const uri=resolveManifestRedirect(playlist.sidx.resolvedUri),fin=(err,request)=>{if(this.requestErrored_(err,request,startingState))return;const sidxMapping=this.mainPlaylistLoader_.sidxMapping_;let sidx;try{sidx=parseSidx_1(toUint8(request.response).subarray(8))}catch(e){return void this.requestErrored_(e,request,startingState)}return sidxMapping[sidxKey]={sidxInfo:playlist.sidx,sidx:sidx},addSidxSegmentsToPlaylist$1(playlist,sidx,playlist.sidx.resolvedUri),cb(!0)};this.request=containerRequest(uri,this.vhs_.xhr,((err,request,container,bytes)=>{if(err)return fin(err,request);if(!container||"mp4"!==container)return fin({status:request.status,message:"Unsupported ".concat(container||"unknown"," container type for sidx segment at URL: ").concat(uri),response:"",playlist:playlist,internal:!0,playlistExclusionDuration:1/0,code:2},request);const{offset:offset,length:length}=playlist.sidx.byterange;if(bytes.length>=length+offset)return fin(err,{response:bytes.subarray(offset,offset+length),status:request.status,uri:request.uri});this.request=this.vhs_.xhr({uri:uri,responseType:"arraybuffer",headers:segmentXhrHeaders({byterange:playlist.sidx.byterange})},fin)}))}dispose(){this.trigger("dispose"),this.stopRequest(),this.loadedPlaylists_={},window.clearTimeout(this.minimumUpdatePeriodTimeout_),window.clearTimeout(this.mediaRequest_),window.clearTimeout(this.mediaUpdateTimeout),this.mediaUpdateTimeout=null,this.mediaRequest_=null,this.minimumUpdatePeriodTimeout_=null,this.mainPlaylistLoader_.createMupOnMedia_&&(this.off("loadedmetadata",this.mainPlaylistLoader_.createMupOnMedia_),this.mainPlaylistLoader_.createMupOnMedia_=null),this.off()}hasPendingRequest(){return this.request||this.mediaRequest_}stopRequest(){if(this.request){const oldRequest=this.request;this.request=null,oldRequest.onreadystatechange=null,oldRequest.abort()}}media(playlist){if(!playlist)return this.media_;if("HAVE_NOTHING"===this.state)throw new Error("Cannot switch media playlist from "+this.state);const startingState=this.state;if("string"==typeof playlist){if(!this.mainPlaylistLoader_.main.playlists[playlist])throw new Error("Unknown playlist URI: "+playlist);playlist=this.mainPlaylistLoader_.main.playlists[playlist]}const mediaChange=!this.media_||playlist.id!==this.media_.id;if(mediaChange&&this.loadedPlaylists_[playlist.id]&&this.loadedPlaylists_[playlist.id].endList)return this.state="HAVE_METADATA",this.media_=playlist,void(mediaChange&&(this.trigger("mediachanging"),this.trigger("mediachange")));mediaChange&&(this.media_&&this.trigger("mediachanging"),this.addSidxSegments_(playlist,startingState,(sidxChanged=>{this.haveMetadata({startingState:startingState,playlist:playlist})})))}haveMetadata(_ref42){let{startingState:startingState,playlist:playlist}=_ref42;this.state="HAVE_METADATA",this.loadedPlaylists_[playlist.id]=playlist,this.mediaRequest_=null,this.refreshMedia_(playlist.id),"HAVE_MAIN_MANIFEST"===startingState?this.trigger("loadedmetadata"):this.trigger("mediachange")}pause(){this.mainPlaylistLoader_.createMupOnMedia_&&(this.off("loadedmetadata",this.mainPlaylistLoader_.createMupOnMedia_),this.mainPlaylistLoader_.createMupOnMedia_=null),this.stopRequest(),window.clearTimeout(this.mediaUpdateTimeout),this.mediaUpdateTimeout=null,this.isMain_&&(window.clearTimeout(this.mainPlaylistLoader_.minimumUpdatePeriodTimeout_),this.mainPlaylistLoader_.minimumUpdatePeriodTimeout_=null),"HAVE_NOTHING"===this.state&&(this.started=!1)}load(isFinalRendition){window.clearTimeout(this.mediaUpdateTimeout),this.mediaUpdateTimeout=null;const media=this.media();if(isFinalRendition){const delay=media?media.targetDuration/2*1e3:5e3;this.mediaUpdateTimeout=window.setTimeout((()=>this.load()),delay)}else this.started?media&&!media.endList?(this.isMain_&&!this.minimumUpdatePeriodTimeout_&&(this.trigger("minimumUpdatePeriod"),this.updateMinimumUpdatePeriodTimeout_()),this.trigger("mediaupdatetimeout")):this.trigger("loadedplaylist"):this.start()}start(){this.started=!0,this.isMain_?this.requestMain_(((req,mainChanged)=>{this.haveMain_(),this.hasPendingRequest()||this.media_||this.media(this.mainPlaylistLoader_.main.playlists[0])})):this.mediaRequest_=window.setTimeout((()=>this.haveMain_()),0)}requestMain_(cb){this.request=this.vhs_.xhr({uri:this.mainPlaylistLoader_.srcUrl,withCredentials:this.withCredentials},((error,req)=>{if(this.requestErrored_(error,req))return void("HAVE_NOTHING"===this.state&&(this.started=!1));const mainChanged=req.responseText!==this.mainPlaylistLoader_.mainXml_;return this.mainPlaylistLoader_.mainXml_=req.responseText,req.responseHeaders&&req.responseHeaders.date?this.mainLoaded_=Date.parse(req.responseHeaders.date):this.mainLoaded_=Date.now(),this.mainPlaylistLoader_.srcUrl=resolveManifestRedirect(this.mainPlaylistLoader_.srcUrl,req),mainChanged?(this.handleMain_(),void this.syncClientServerClock_((()=>cb(req,mainChanged)))):cb(req,mainChanged)}))}syncClientServerClock_(done){const utcTiming=parseUTCTiming(this.mainPlaylistLoader_.mainXml_);return null===utcTiming?(this.mainPlaylistLoader_.clientOffset_=this.mainLoaded_-Date.now(),done()):"DIRECT"===utcTiming.method?(this.mainPlaylistLoader_.clientOffset_=utcTiming.value-Date.now(),done()):void(this.request=this.vhs_.xhr({uri:resolveUrl(this.mainPlaylistLoader_.srcUrl,utcTiming.value),method:utcTiming.method,withCredentials:this.withCredentials},((error,req)=>{if(!this.request)return;if(error)return this.mainPlaylistLoader_.clientOffset_=this.mainLoaded_-Date.now(),done();let serverTime;serverTime="HEAD"===utcTiming.method?req.responseHeaders&&req.responseHeaders.date?Date.parse(req.responseHeaders.date):this.mainLoaded_:Date.parse(req.responseText),this.mainPlaylistLoader_.clientOffset_=serverTime-Date.now(),done()})))}haveMain_(){this.state="HAVE_MAIN_MANIFEST",this.isMain_?this.trigger("loadedplaylist"):this.media_||this.media(this.childPlaylist_)}handleMain_(){this.mediaRequest_=null;const oldMain=this.mainPlaylistLoader_.main;let newMain=parseMainXml({mainXml:this.mainPlaylistLoader_.mainXml_,srcUrl:this.mainPlaylistLoader_.srcUrl,clientOffset:this.mainPlaylistLoader_.clientOffset_,sidxMapping:this.mainPlaylistLoader_.sidxMapping_,previousManifest:oldMain});oldMain&&(newMain=updateMain(oldMain,newMain,this.mainPlaylistLoader_.sidxMapping_)),this.mainPlaylistLoader_.main=newMain||oldMain;const location=this.mainPlaylistLoader_.main.locations&&this.mainPlaylistLoader_.main.locations[0];return location&&location!==this.mainPlaylistLoader_.srcUrl&&(this.mainPlaylistLoader_.srcUrl=location),(!oldMain||newMain&&newMain.minimumUpdatePeriod!==oldMain.minimumUpdatePeriod)&&this.updateMinimumUpdatePeriodTimeout_(),Boolean(newMain)}updateMinimumUpdatePeriodTimeout_(){const mpl=this.mainPlaylistLoader_;mpl.createMupOnMedia_&&(mpl.off("loadedmetadata",mpl.createMupOnMedia_),mpl.createMupOnMedia_=null),mpl.minimumUpdatePeriodTimeout_&&(window.clearTimeout(mpl.minimumUpdatePeriodTimeout_),mpl.minimumUpdatePeriodTimeout_=null);let mup=mpl.main&&mpl.main.minimumUpdatePeriod;0===mup&&(mpl.media()?mup=1e3*mpl.media().targetDuration:(mpl.createMupOnMedia_=mpl.updateMinimumUpdatePeriodTimeout_,mpl.one("loadedmetadata",mpl.createMupOnMedia_))),"number"!=typeof mup||mup<=0?mup<0&&this.logger_("found invalid minimumUpdatePeriod of ".concat(mup,", not setting a timeout")):this.createMUPTimeout_(mup)}createMUPTimeout_(mup){const mpl=this.mainPlaylistLoader_;mpl.minimumUpdatePeriodTimeout_=window.setTimeout((()=>{mpl.minimumUpdatePeriodTimeout_=null,mpl.trigger("minimumUpdatePeriod"),mpl.createMUPTimeout_(mup)}),mup)}refreshXml_(){this.requestMain_(((req,mainChanged)=>{mainChanged&&(this.media_&&(this.media_=this.mainPlaylistLoader_.main.playlists[this.media_.id]),this.mainPlaylistLoader_.sidxMapping_=((main,oldSidxMapping)=>{let mediaGroupSidx=compareSidxEntry(main.playlists,oldSidxMapping);return forEachMediaGroup(main,((properties,mediaType,groupKey,labelKey)=>{if(properties.playlists&&properties.playlists.length){const playlists=properties.playlists;mediaGroupSidx=merge(mediaGroupSidx,compareSidxEntry(playlists,oldSidxMapping))}})),mediaGroupSidx})(this.mainPlaylistLoader_.main,this.mainPlaylistLoader_.sidxMapping_),this.addSidxSegments_(this.media(),this.state,(sidxChanged=>{this.refreshMedia_(this.media().id)})))}))}refreshMedia_(mediaID){if(!mediaID)throw new Error("refreshMedia_ must take a media id");this.media_&&this.isMain_&&this.handleMain_();const playlists=this.mainPlaylistLoader_.main.playlists,mediaChanged=!this.media_||this.media_!==playlists[mediaID];if(mediaChanged?this.media_=playlists[mediaID]:this.trigger("playlistunchanged"),!this.mediaUpdateTimeout){const createMediaUpdateTimeout=()=>{this.media().endList||(this.mediaUpdateTimeout=window.setTimeout((()=>{this.trigger("mediaupdatetimeout"),createMediaUpdateTimeout()}),refreshDelay(this.media(),Boolean(mediaChanged))))};createMediaUpdateTimeout()}this.trigger("loadedplaylist")}}var Config={GOAL_BUFFER_LENGTH:30,MAX_GOAL_BUFFER_LENGTH:60,BACK_BUFFER_LENGTH:30,GOAL_BUFFER_LENGTH_RATE:1,INITIAL_BANDWIDTH:4194304,BANDWIDTH_VARIANCE:1.2,BUFFER_LOW_WATER_LINE:0,MAX_BUFFER_LOW_WATER_LINE:30,EXPERIMENTAL_MAX_BUFFER_LOW_WATER_LINE:16,BUFFER_LOW_WATER_LINE_RATE:1,BUFFER_HIGH_WATER_LINE:30};const browserWorkerPolyFill=function(workerObj){return workerObj.on=workerObj.addEventListener,workerObj.off=workerObj.removeEventListener,workerObj},factory=function(code){return function(){const objectUrl=function(str){try{return URL.createObjectURL(new Blob([str],{type:"application/javascript"}))}catch(e){const blob=new BlobBuilder;return blob.append(str),URL.createObjectURL(blob.getBlob())}}(code),worker=browserWorkerPolyFill(new Worker(objectUrl));worker.objURL=objectUrl;const terminate=worker.terminate;return worker.on=worker.addEventListener,worker.off=worker.removeEventListener,worker.terminate=function(){return URL.revokeObjectURL(objectUrl),terminate.call(this)},worker}},transform=function(code){return"var browserWorkerPolyFill = ".concat(browserWorkerPolyFill.toString(),";\n")+"browserWorkerPolyFill(self);\n"+code},getWorkerString=function(fn){return fn.toString().replace(/^function.+?{/,"").slice(0,-1)},workerCode$1=transform(getWorkerString((function(){var commonjsGlobal="undefined"!=typeof globalThis?globalThis:"undefined"!=typeof window?window:"undefined"!=typeof global?global:"undefined"!=typeof self?self:{},Stream$8=function(){this.init=function(){var listeners={};this.on=function(type,listener){listeners[type]||(listeners[type]=[]),listeners[type]=listeners[type].concat(listener)},this.off=function(type,listener){var index;return!!listeners[type]&&(index=listeners[type].indexOf(listener),listeners[type]=listeners[type].slice(),listeners[type].splice(index,1),index>-1)},this.trigger=function(type){var callbacks,i,length,args;if(callbacks=listeners[type])if(2===arguments.length)for(length=callbacks.length,i=0;i<length;++i)callbacks[i].call(this,arguments[1]);else{for(args=[],i=arguments.length,i=1;i<arguments.length;++i)args.push(arguments[i]);for(length=callbacks.length,i=0;i<length;++i)callbacks[i].apply(this,args)}},this.dispose=function(){listeners={}}}};Stream$8.prototype.pipe=function(destination){return this.on("data",(function(data){destination.push(data)})),this.on("done",(function(flushSource){destination.flush(flushSource)})),this.on("partialdone",(function(flushSource){destination.partialFlush(flushSource)})),this.on("endedtimeline",(function(flushSource){destination.endTimeline(flushSource)})),this.on("reset",(function(flushSource){destination.reset(flushSource)})),destination},Stream$8.prototype.push=function(data){this.trigger("data",data)},Stream$8.prototype.flush=function(flushSource){this.trigger("done",flushSource)},Stream$8.prototype.partialFlush=function(flushSource){this.trigger("partialdone",flushSource)},Stream$8.prototype.endTimeline=function(flushSource){this.trigger("endedtimeline",flushSource)},Stream$8.prototype.reset=function(flushSource){this.trigger("reset",flushSource)};var box,dinf,esds,ftyp,mfhd,minf,moof,moov,mvex,mvhd,trak,tkhd,mdia,mdhd,hdlr,sdtp,stbl,stsd,traf,trex,trun$1,types,MAJOR_BRAND,MINOR_VERSION,AVC1_BRAND,VIDEO_HDLR,AUDIO_HDLR,HDLR_TYPES,VMHD,SMHD,DREF,STCO,STSC,STSZ,STTS,videoSample,audioSample,audioTrun,videoTrun,trunHeader,stream=Stream$8,MAX_UINT32$1=Math.pow(2,32),numbers={getUint64:function(uint8){var value,dv=new DataView(uint8.buffer,uint8.byteOffset,uint8.byteLength);return dv.getBigUint64?(value=dv.getBigUint64(0))<Number.MAX_SAFE_INTEGER?Number(value):value:dv.getUint32(0)*MAX_UINT32$1+dv.getUint32(4)},MAX_UINT32:MAX_UINT32$1},MAX_UINT32=numbers.MAX_UINT32;!function(){var i;if(types={avc1:[],avcC:[],btrt:[],dinf:[],dref:[],esds:[],ftyp:[],hdlr:[],mdat:[],mdhd:[],mdia:[],mfhd:[],minf:[],moof:[],moov:[],mp4a:[],mvex:[],mvhd:[],pasp:[],sdtp:[],smhd:[],stbl:[],stco:[],stsc:[],stsd:[],stsz:[],stts:[],styp:[],tfdt:[],tfhd:[],traf:[],trak:[],trun:[],trex:[],tkhd:[],vmhd:[]},"undefined"!=typeof Uint8Array){for(i in types)types.hasOwnProperty(i)&&(types[i]=[i.charCodeAt(0),i.charCodeAt(1),i.charCodeAt(2),i.charCodeAt(3)]);MAJOR_BRAND=new Uint8Array(["i".charCodeAt(0),"s".charCodeAt(0),"o".charCodeAt(0),"m".charCodeAt(0)]),AVC1_BRAND=new Uint8Array(["a".charCodeAt(0),"v".charCodeAt(0),"c".charCodeAt(0),"1".charCodeAt(0)]),MINOR_VERSION=new Uint8Array([0,0,0,1]),VIDEO_HDLR=new Uint8Array([0,0,0,0,0,0,0,0,118,105,100,101,0,0,0,0,0,0,0,0,0,0,0,0,86,105,100,101,111,72,97,110,100,108,101,114,0]),AUDIO_HDLR=new Uint8Array([0,0,0,0,0,0,0,0,115,111,117,110,0,0,0,0,0,0,0,0,0,0,0,0,83,111,117,110,100,72,97,110,100,108,101,114,0]),HDLR_TYPES={video:VIDEO_HDLR,audio:AUDIO_HDLR},DREF=new Uint8Array([0,0,0,0,0,0,0,1,0,0,0,12,117,114,108,32,0,0,0,1]),SMHD=new Uint8Array([0,0,0,0,0,0,0,0]),STCO=new Uint8Array([0,0,0,0,0,0,0,0]),STSC=STCO,STSZ=new Uint8Array([0,0,0,0,0,0,0,0,0,0,0,0]),STTS=STCO,VMHD=new Uint8Array([0,0,0,1,0,0,0,0,0,0,0,0])}}(),box=function(type){var i,result,payload=[],size=0;for(i=1;i<arguments.length;i++)payload.push(arguments[i]);for(i=payload.length;i--;)size+=payload[i].byteLength;for(result=new Uint8Array(size+8),new DataView(result.buffer,result.byteOffset,result.byteLength).setUint32(0,result.byteLength),result.set(type,4),i=0,size=8;i<payload.length;i++)result.set(payload[i],size),size+=payload[i].byteLength;return result},dinf=function(){return box(types.dinf,box(types.dref,DREF))},esds=function(track){return box(types.esds,new Uint8Array([0,0,0,0,3,25,0,0,0,4,17,64,21,0,6,0,0,0,218,192,0,0,218,192,5,2,track.audioobjecttype<<3|track.samplingfrequencyindex>>>1,track.samplingfrequencyindex<<7|track.channelcount<<3,6,1,2]))},hdlr=function(type){return box(types.hdlr,HDLR_TYPES[type])},mdhd=function(track){var result=new Uint8Array([0,0,0,0,0,0,0,2,0,0,0,3,0,1,95,144,track.duration>>>24&255,track.duration>>>16&255,track.duration>>>8&255,255&track.duration,85,196,0,0]);return track.samplerate&&(result[12]=track.samplerate>>>24&255,result[13]=track.samplerate>>>16&255,result[14]=track.samplerate>>>8&255,result[15]=255&track.samplerate),box(types.mdhd,result)},mdia=function(track){return box(types.mdia,mdhd(track),hdlr(track.type),minf(track))},mfhd=function(sequenceNumber){return box(types.mfhd,new Uint8Array([0,0,0,0,(4278190080&sequenceNumber)>>24,(16711680&sequenceNumber)>>16,(65280&sequenceNumber)>>8,255&sequenceNumber]))},minf=function(track){return box(types.minf,"video"===track.type?box(types.vmhd,VMHD):box(types.smhd,SMHD),dinf(),stbl(track))},moof=function(sequenceNumber,tracks){for(var trackFragments=[],i=tracks.length;i--;)trackFragments[i]=traf(tracks[i]);return box.apply(null,[types.moof,mfhd(sequenceNumber)].concat(trackFragments))},moov=function(tracks){for(var i=tracks.length,boxes=[];i--;)boxes[i]=trak(tracks[i]);return box.apply(null,[types.moov,mvhd(4294967295)].concat(boxes).concat(mvex(tracks)))},mvex=function(tracks){for(var i=tracks.length,boxes=[];i--;)boxes[i]=trex(tracks[i]);return box.apply(null,[types.mvex].concat(boxes))},mvhd=function(duration){var bytes=new Uint8Array([0,0,0,0,0,0,0,1,0,0,0,2,0,1,95,144,(4278190080&duration)>>24,(16711680&duration)>>16,(65280&duration)>>8,255&duration,0,1,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,64,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,255,255,255,255]);return box(types.mvhd,bytes)},sdtp=function(track){var flags,i,samples=track.samples||[],bytes=new Uint8Array(4+samples.length);for(i=0;i<samples.length;i++)flags=samples[i].flags,bytes[i+4]=flags.dependsOn<<4|flags.isDependedOn<<2|flags.hasRedundancy;return box(types.sdtp,bytes)},stbl=function(track){return box(types.stbl,stsd(track),box(types.stts,STTS),box(types.stsc,STSC),box(types.stsz,STSZ),box(types.stco,STCO))},stsd=function(track){return box(types.stsd,new Uint8Array([0,0,0,0,0,0,0,1]),"video"===track.type?videoSample(track):audioSample(track))},videoSample=function(track){var i,avc1Box,sps=track.sps||[],pps=track.pps||[],sequenceParameterSets=[],pictureParameterSets=[];for(i=0;i<sps.length;i++)sequenceParameterSets.push((65280&sps[i].byteLength)>>>8),sequenceParameterSets.push(255&sps[i].byteLength),sequenceParameterSets=sequenceParameterSets.concat(Array.prototype.slice.call(sps[i]));for(i=0;i<pps.length;i++)pictureParameterSets.push((65280&pps[i].byteLength)>>>8),pictureParameterSets.push(255&pps[i].byteLength),pictureParameterSets=pictureParameterSets.concat(Array.prototype.slice.call(pps[i]));if(avc1Box=[types.avc1,new Uint8Array([0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,(65280&track.width)>>8,255&track.width,(65280&track.height)>>8,255&track.height,0,72,0,0,0,72,0,0,0,0,0,0,0,1,19,118,105,100,101,111,106,115,45,99,111,110,116,114,105,98,45,104,108,115,0,0,0,0,0,0,0,0,0,0,0,0,0,24,17,17]),box(types.avcC,new Uint8Array([1,track.profileIdc,track.profileCompatibility,track.levelIdc,255].concat([sps.length],sequenceParameterSets,[pps.length],pictureParameterSets))),box(types.btrt,new Uint8Array([0,28,156,128,0,45,198,192,0,45,198,192]))],track.sarRatio){var hSpacing=track.sarRatio[0],vSpacing=track.sarRatio[1];avc1Box.push(box(types.pasp,new Uint8Array([(4278190080&hSpacing)>>24,(16711680&hSpacing)>>16,(65280&hSpacing)>>8,255&hSpacing,(4278190080&vSpacing)>>24,(16711680&vSpacing)>>16,(65280&vSpacing)>>8,255&vSpacing])))}return box.apply(null,avc1Box)},audioSample=function(track){return box(types.mp4a,new Uint8Array([0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,(65280&track.channelcount)>>8,255&track.channelcount,(65280&track.samplesize)>>8,255&track.samplesize,0,0,0,0,(65280&track.samplerate)>>8,255&track.samplerate,0,0]),esds(track))},tkhd=function(track){var result=new Uint8Array([0,0,0,7,0,0,0,0,0,0,0,0,(4278190080&track.id)>>24,(16711680&track.id)>>16,(65280&track.id)>>8,255&track.id,0,0,0,0,(4278190080&track.duration)>>24,(16711680&track.duration)>>16,(65280&track.duration)>>8,255&track.duration,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,64,0,0,0,(65280&track.width)>>8,255&track.width,0,0,(65280&track.height)>>8,255&track.height,0,0]);return box(types.tkhd,result)},traf=function(track){var trackFragmentHeader,trackFragmentDecodeTime,trackFragmentRun,sampleDependencyTable,upperWordBaseMediaDecodeTime,lowerWordBaseMediaDecodeTime;return trackFragmentHeader=box(types.tfhd,new Uint8Array([0,0,0,58,(4278190080&track.id)>>24,(16711680&track.id)>>16,(65280&track.id)>>8,255&track.id,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0])),upperWordBaseMediaDecodeTime=Math.floor(track.baseMediaDecodeTime/MAX_UINT32),lowerWordBaseMediaDecodeTime=Math.floor(track.baseMediaDecodeTime%MAX_UINT32),trackFragmentDecodeTime=box(types.tfdt,new Uint8Array([1,0,0,0,upperWordBaseMediaDecodeTime>>>24&255,upperWordBaseMediaDecodeTime>>>16&255,upperWordBaseMediaDecodeTime>>>8&255,255&upperWordBaseMediaDecodeTime,lowerWordBaseMediaDecodeTime>>>24&255,lowerWordBaseMediaDecodeTime>>>16&255,lowerWordBaseMediaDecodeTime>>>8&255,255&lowerWordBaseMediaDecodeTime])),92,"audio"===track.type?(trackFragmentRun=trun$1(track,92),box(types.traf,trackFragmentHeader,trackFragmentDecodeTime,trackFragmentRun)):(sampleDependencyTable=sdtp(track),trackFragmentRun=trun$1(track,sampleDependencyTable.length+92),box(types.traf,trackFragmentHeader,trackFragmentDecodeTime,trackFragmentRun,sampleDependencyTable))},trak=function(track){return track.duration=track.duration||4294967295,box(types.trak,tkhd(track),mdia(track))},trex=function(track){var result=new Uint8Array([0,0,0,0,(4278190080&track.id)>>24,(16711680&track.id)>>16,(65280&track.id)>>8,255&track.id,0,0,0,1,0,0,0,0,0,0,0,0,0,1,0,1]);return"video"!==track.type&&(result[result.length-1]=0),box(types.trex,result)},trunHeader=function(samples,offset){var durationPresent=0,sizePresent=0,flagsPresent=0,compositionTimeOffset=0;return samples.length&&(void 0!==samples[0].duration&&(durationPresent=1),void 0!==samples[0].size&&(sizePresent=2),void 0!==samples[0].flags&&(flagsPresent=4),void 0!==samples[0].compositionTimeOffset&&(compositionTimeOffset=8)),[0,0,durationPresent|sizePresent|flagsPresent|compositionTimeOffset,1,(4278190080&samples.length)>>>24,(16711680&samples.length)>>>16,(65280&samples.length)>>>8,255&samples.length,(4278190080&offset)>>>24,(16711680&offset)>>>16,(65280&offset)>>>8,255&offset]},videoTrun=function(track,offset){var bytesOffest,bytes,header,samples,sample,i;for(offset+=20+16*(samples=track.samples||[]).length,header=trunHeader(samples,offset),(bytes=new Uint8Array(header.length+16*samples.length)).set(header),bytesOffest=header.length,i=0;i<samples.length;i++)sample=samples[i],bytes[bytesOffest++]=(4278190080&sample.duration)>>>24,bytes[bytesOffest++]=(16711680&sample.duration)>>>16,bytes[bytesOffest++]=(65280&sample.duration)>>>8,bytes[bytesOffest++]=255&sample.duration,bytes[bytesOffest++]=(4278190080&sample.size)>>>24,bytes[bytesOffest++]=(16711680&sample.size)>>>16,bytes[bytesOffest++]=(65280&sample.size)>>>8,bytes[bytesOffest++]=255&sample.size,bytes[bytesOffest++]=sample.flags.isLeading<<2|sample.flags.dependsOn,bytes[bytesOffest++]=sample.flags.isDependedOn<<6|sample.flags.hasRedundancy<<4|sample.flags.paddingValue<<1|sample.flags.isNonSyncSample,bytes[bytesOffest++]=61440&sample.flags.degradationPriority,bytes[bytesOffest++]=15&sample.flags.degradationPriority,bytes[bytesOffest++]=(4278190080&sample.compositionTimeOffset)>>>24,bytes[bytesOffest++]=(16711680&sample.compositionTimeOffset)>>>16,bytes[bytesOffest++]=(65280&sample.compositionTimeOffset)>>>8,bytes[bytesOffest++]=255&sample.compositionTimeOffset;return box(types.trun,bytes)},audioTrun=function(track,offset){var bytes,bytesOffest,header,samples,sample,i;for(offset+=20+8*(samples=track.samples||[]).length,header=trunHeader(samples,offset),(bytes=new Uint8Array(header.length+8*samples.length)).set(header),bytesOffest=header.length,i=0;i<samples.length;i++)sample=samples[i],bytes[bytesOffest++]=(4278190080&sample.duration)>>>24,bytes[bytesOffest++]=(16711680&sample.duration)>>>16,bytes[bytesOffest++]=(65280&sample.duration)>>>8,bytes[bytesOffest++]=255&sample.duration,bytes[bytesOffest++]=(4278190080&sample.size)>>>24,bytes[bytesOffest++]=(16711680&sample.size)>>>16,bytes[bytesOffest++]=(65280&sample.size)>>>8,bytes[bytesOffest++]=255&sample.size;return box(types.trun,bytes)},trun$1=function(track,offset){return"audio"===track.type?audioTrun(track,offset):videoTrun(track,offset)};var silence,secondsToVideoTs,secondsToAudioTs,videoTsToSeconds,audioTsToSeconds,audioTsToVideoTs,videoTsToAudioTs,metadataTsToSeconds,mp4Generator={ftyp:ftyp=function(){return box(types.ftyp,MAJOR_BRAND,MINOR_VERSION,MAJOR_BRAND,AVC1_BRAND)},mdat:function(data){return box(types.mdat,data)},moof:moof,moov:moov,initSegment:function(tracks){var result,fileType=ftyp(),movie=moov(tracks);return(result=new Uint8Array(fileType.byteLength+movie.byteLength)).set(fileType),result.set(movie,fileType.byteLength),result}},sampleForFrame=function(frame,dataOffset){var sample={size:0,flags:{isLeading:0,dependsOn:1,isDependedOn:0,hasRedundancy:0,degradationPriority:0,isNonSyncSample:1}};return sample.dataOffset=dataOffset,sample.compositionTimeOffset=frame.pts-frame.dts,sample.duration=frame.duration,sample.size=4*frame.length,sample.size+=frame.byteLength,frame.keyFrame&&(sample.flags.dependsOn=2,sample.flags.isNonSyncSample=0),sample},frameUtils$1={groupNalsIntoFrames:function(nalUnits){var i,currentNal,currentFrame=[],frames=[];for(frames.byteLength=0,frames.nalCount=0,frames.duration=0,currentFrame.byteLength=0,i=0;i<nalUnits.length;i++)"access_unit_delimiter_rbsp"===(currentNal=nalUnits[i]).nalUnitType?(currentFrame.length&&(currentFrame.duration=currentNal.dts-currentFrame.dts,frames.byteLength+=currentFrame.byteLength,frames.nalCount+=currentFrame.length,frames.duration+=currentFrame.duration,frames.push(currentFrame)),(currentFrame=[currentNal]).byteLength=currentNal.data.byteLength,currentFrame.pts=currentNal.pts,currentFrame.dts=currentNal.dts):("slice_layer_without_partitioning_rbsp_idr"===currentNal.nalUnitType&&(currentFrame.keyFrame=!0),currentFrame.duration=currentNal.dts-currentFrame.dts,currentFrame.byteLength+=currentNal.data.byteLength,currentFrame.push(currentNal));return frames.length&&(!currentFrame.duration||currentFrame.duration<=0)&&(currentFrame.duration=frames[frames.length-1].duration),frames.byteLength+=currentFrame.byteLength,frames.nalCount+=currentFrame.length,frames.duration+=currentFrame.duration,frames.push(currentFrame),frames},groupFramesIntoGops:function(frames){var i,currentFrame,currentGop=[],gops=[];for(currentGop.byteLength=0,currentGop.nalCount=0,currentGop.duration=0,currentGop.pts=frames[0].pts,currentGop.dts=frames[0].dts,gops.byteLength=0,gops.nalCount=0,gops.duration=0,gops.pts=frames[0].pts,gops.dts=frames[0].dts,i=0;i<frames.length;i++)(currentFrame=frames[i]).keyFrame?(currentGop.length&&(gops.push(currentGop),gops.byteLength+=currentGop.byteLength,gops.nalCount+=currentGop.nalCount,gops.duration+=currentGop.duration),(currentGop=[currentFrame]).nalCount=currentFrame.length,currentGop.byteLength=currentFrame.byteLength,currentGop.pts=currentFrame.pts,currentGop.dts=currentFrame.dts,currentGop.duration=currentFrame.duration):(currentGop.duration+=currentFrame.duration,currentGop.nalCount+=currentFrame.length,currentGop.byteLength+=currentFrame.byteLength,currentGop.push(currentFrame));return gops.length&&currentGop.duration<=0&&(currentGop.duration=gops[gops.length-1].duration),gops.byteLength+=currentGop.byteLength,gops.nalCount+=currentGop.nalCount,gops.duration+=currentGop.duration,gops.push(currentGop),gops},extendFirstKeyFrame:function(gops){var currentGop;return!gops[0][0].keyFrame&&gops.length>1&&(currentGop=gops.shift(),gops.byteLength-=currentGop.byteLength,gops.nalCount-=currentGop.nalCount,gops[0][0].dts=currentGop.dts,gops[0][0].pts=currentGop.pts,gops[0][0].duration+=currentGop.duration),gops},generateSampleTable:function(gops,baseDataOffset){var h,i,sample,currentGop,currentFrame,dataOffset=baseDataOffset||0,samples=[];for(h=0;h<gops.length;h++)for(currentGop=gops[h],i=0;i<currentGop.length;i++)currentFrame=currentGop[i],dataOffset+=(sample=sampleForFrame(currentFrame,dataOffset)).size,samples.push(sample);return samples},concatenateNalData:function(gops){var h,i,j,currentGop,currentFrame,currentNal,dataOffset=0,nalsByteLength=gops.byteLength,numberOfNals=gops.nalCount,data=new Uint8Array(nalsByteLength+4*numberOfNals),view=new DataView(data.buffer);for(h=0;h<gops.length;h++)for(currentGop=gops[h],i=0;i<currentGop.length;i++)for(currentFrame=currentGop[i],j=0;j<currentFrame.length;j++)currentNal=currentFrame[j],view.setUint32(dataOffset,currentNal.data.byteLength),dataOffset+=4,data.set(currentNal.data,dataOffset),dataOffset+=currentNal.data.byteLength;return data},generateSampleTableForFrame:function(frame,baseDataOffset){var sample,samples=[];return sample=sampleForFrame(frame,baseDataOffset||0),samples.push(sample),samples},concatenateNalDataForFrame:function(frame){var i,currentNal,dataOffset=0,nalsByteLength=frame.byteLength,numberOfNals=frame.length,data=new Uint8Array(nalsByteLength+4*numberOfNals),view=new DataView(data.buffer);for(i=0;i<frame.length;i++)currentNal=frame[i],view.setUint32(dataOffset,currentNal.data.byteLength),dataOffset+=4,data.set(currentNal.data,dataOffset),dataOffset+=currentNal.data.byteLength;return data}},highPrefix=[33,16,5,32,164,27],lowPrefix=[33,65,108,84,1,2,4,8,168,2,4,8,17,191,252],zeroFill=function(count){for(var a=[];count--;)a.push(0);return a};audioTsToVideoTs=function(timestamp,sampleRate){return secondsToVideoTs(audioTsToSeconds(timestamp,sampleRate))},videoTsToAudioTs=function(timestamp,sampleRate){return secondsToAudioTs(videoTsToSeconds(timestamp),sampleRate)},metadataTsToSeconds=function(timestamp,timelineStartPts,keepOriginalTimestamps){return videoTsToSeconds(keepOriginalTimestamps?timestamp:timestamp-timelineStartPts)};var clock$2={ONE_SECOND_IN_TS:9e4,secondsToVideoTs:secondsToVideoTs=function(seconds){return 9e4*seconds},secondsToAudioTs:secondsToAudioTs=function(seconds,sampleRate){return seconds*sampleRate},videoTsToSeconds:videoTsToSeconds=function(timestamp){return timestamp/9e4},audioTsToSeconds:audioTsToSeconds=function(timestamp,sampleRate){return timestamp/sampleRate},audioTsToVideoTs:audioTsToVideoTs,videoTsToAudioTs:videoTsToAudioTs,metadataTsToSeconds:metadataTsToSeconds},coneOfSilence=function(){if(!silence){var coneOfSilence={96e3:[highPrefix,[227,64],zeroFill(154),[56]],88200:[highPrefix,[231],zeroFill(170),[56]],64e3:[highPrefix,[248,192],zeroFill(240),[56]],48e3:[highPrefix,[255,192],zeroFill(268),[55,148,128],zeroFill(54),[112]],44100:[highPrefix,[255,192],zeroFill(268),[55,163,128],zeroFill(84),[112]],32e3:[highPrefix,[255,192],zeroFill(268),[55,234],zeroFill(226),[112]],24e3:[highPrefix,[255,192],zeroFill(268),[55,255,128],zeroFill(268),[111,112],zeroFill(126),[224]],16e3:[highPrefix,[255,192],zeroFill(268),[55,255,128],zeroFill(268),[111,255],zeroFill(269),[223,108],zeroFill(195),[1,192]],12e3:[lowPrefix,zeroFill(268),[3,127,248],zeroFill(268),[6,255,240],zeroFill(268),[13,255,224],zeroFill(268),[27,253,128],zeroFill(259),[56]],11025:[lowPrefix,zeroFill(268),[3,127,248],zeroFill(268),[6,255,240],zeroFill(268),[13,255,224],zeroFill(268),[27,255,192],zeroFill(268),[55,175,128],zeroFill(108),[112]],8e3:[lowPrefix,zeroFill(268),[3,121,16],zeroFill(47),[7]]};metaTable=coneOfSilence,silence=Object.keys(metaTable).reduce((function(obj,key){return obj[key]=new Uint8Array(metaTable[key].reduce((function(arr,part){return arr.concat(part)}),[])),obj}),{})}var metaTable;return silence},clock$1=clock$2,audioFrameUtils$1={prefixWithSilence:function(track,frames,audioAppendStartTs,videoBaseMediaDecodeTime){var baseMediaDecodeTimeTs,frameDuration,silentFrame,i,firstFrame,audioGapDuration=0,audioFillFrameCount=0,audioFillDuration=0;if(frames.length&&(baseMediaDecodeTimeTs=clock$1.audioTsToVideoTs(track.baseMediaDecodeTime,track.samplerate),frameDuration=Math.ceil(clock$1.ONE_SECOND_IN_TS/(track.samplerate/1024)),audioAppendStartTs&&videoBaseMediaDecodeTime&&(audioGapDuration=baseMediaDecodeTimeTs-Math.max(audioAppendStartTs,videoBaseMediaDecodeTime),audioFillDuration=(audioFillFrameCount=Math.floor(audioGapDuration/frameDuration))*frameDuration),!(audioFillFrameCount<1||audioFillDuration>clock$1.ONE_SECOND_IN_TS/2))){for((silentFrame=coneOfSilence()[track.samplerate])||(silentFrame=frames[0].data),i=0;i<audioFillFrameCount;i++)firstFrame=frames[0],frames.splice(0,0,{data:silentFrame,dts:firstFrame.dts-frameDuration,pts:firstFrame.pts-frameDuration});return track.baseMediaDecodeTime-=Math.floor(clock$1.videoTsToAudioTs(audioFillDuration,track.samplerate)),audioFillDuration}},trimAdtsFramesByEarliestDts:function(adtsFrames,track,earliestAllowedDts){return track.minSegmentDts>=earliestAllowedDts?adtsFrames:(track.minSegmentDts=1/0,adtsFrames.filter((function(currentFrame){return currentFrame.dts>=earliestAllowedDts&&(track.minSegmentDts=Math.min(track.minSegmentDts,currentFrame.dts),track.minSegmentPts=track.minSegmentDts,!0)})))},generateSampleTable:function(frames){var i,currentFrame,samples=[];for(i=0;i<frames.length;i++)currentFrame=frames[i],samples.push({size:currentFrame.data.byteLength,duration:1024});return samples},concatenateFrameData:function(frames){var i,currentFrame,dataOffset=0,data=new Uint8Array(function(array){var i,sum=0;for(i=0;i<array.length;i++)sum+=array[i].data.byteLength;return sum}(frames));for(i=0;i<frames.length;i++)currentFrame=frames[i],data.set(currentFrame.data,dataOffset),dataOffset+=currentFrame.data.byteLength;return data}},ONE_SECOND_IN_TS$3=clock$2.ONE_SECOND_IN_TS,trackDecodeInfo$1={clearDtsInfo:function(track){delete track.minSegmentDts,delete track.maxSegmentDts,delete track.minSegmentPts,delete track.maxSegmentPts},calculateTrackBaseMediaDecodeTime:function(track,keepOriginalTimestamps){var baseMediaDecodeTime,minSegmentDts=track.minSegmentDts;return keepOriginalTimestamps||(minSegmentDts-=track.timelineStartInfo.dts),baseMediaDecodeTime=track.timelineStartInfo.baseMediaDecodeTime,baseMediaDecodeTime+=minSegmentDts,baseMediaDecodeTime=Math.max(0,baseMediaDecodeTime),"audio"===track.type&&(baseMediaDecodeTime*=track.samplerate/ONE_SECOND_IN_TS$3,baseMediaDecodeTime=Math.floor(baseMediaDecodeTime)),baseMediaDecodeTime},collectDtsInfo:function(track,data){"number"==typeof data.pts&&(void 0===track.timelineStartInfo.pts&&(track.timelineStartInfo.pts=data.pts),void 0===track.minSegmentPts?track.minSegmentPts=data.pts:track.minSegmentPts=Math.min(track.minSegmentPts,data.pts),void 0===track.maxSegmentPts?track.maxSegmentPts=data.pts:track.maxSegmentPts=Math.max(track.maxSegmentPts,data.pts)),"number"==typeof data.dts&&(void 0===track.timelineStartInfo.dts&&(track.timelineStartInfo.dts=data.dts),void 0===track.minSegmentDts?track.minSegmentDts=data.dts:track.minSegmentDts=Math.min(track.minSegmentDts,data.dts),void 0===track.maxSegmentDts?track.maxSegmentDts=data.dts:track.maxSegmentDts=Math.max(track.maxSegmentDts,data.dts))}},captionPacketParser={parseSei:function(bytes){for(var i=0,result={payloadType:-1,payloadSize:0},payloadType=0,payloadSize=0;i<bytes.byteLength&&128!==bytes[i];){for(;255===bytes[i];)payloadType+=255,i++;for(payloadType+=bytes[i++];255===bytes[i];)payloadSize+=255,i++;if(payloadSize+=bytes[i++],!result.payload&&4===payloadType){if("GA94"===String.fromCharCode(bytes[i+3],bytes[i+4],bytes[i+5],bytes[i+6])){result.payloadType=payloadType,result.payloadSize=payloadSize,result.payload=bytes.subarray(i,i+payloadSize);break}result.payload=void 0}i+=payloadSize,payloadType=0,payloadSize=0}return result},parseUserData:function(sei){return 181!==sei.payload[0]||49!=(sei.payload[1]<<8|sei.payload[2])||"GA94"!==String.fromCharCode(sei.payload[3],sei.payload[4],sei.payload[5],sei.payload[6])||3!==sei.payload[7]?null:sei.payload.subarray(8,sei.payload.length-1)},parseCaptionPackets:function(pts,userData){var i,count,offset,data,results=[];if(!(64&userData[0]))return results;for(count=31&userData[0],i=0;i<count;i++)data={type:3&userData[(offset=3*i)+2],pts:pts},4&userData[offset+2]&&(data.ccData=userData[offset+3]<<8|userData[offset+4],results.push(data));return results},discardEmulationPreventionBytes:function(data){for(var newLength,newData,length=data.byteLength,emulationPreventionBytesPositions=[],i=1;i<length-2;)0===data[i]&&0===data[i+1]&&3===data[i+2]?(emulationPreventionBytesPositions.push(i+2),i+=2):i++;if(0===emulationPreventionBytesPositions.length)return data;newLength=length-emulationPreventionBytesPositions.length,newData=new Uint8Array(newLength);var sourceIndex=0;for(i=0;i<newLength;sourceIndex++,i++)sourceIndex===emulationPreventionBytesPositions[0]&&(sourceIndex++,emulationPreventionBytesPositions.shift()),newData[i]=data[sourceIndex];return newData},USER_DATA_REGISTERED_ITU_T_T35:4},Stream$7=stream,cea708Parser=captionPacketParser,CaptionStream$2=function(options){options=options||{},CaptionStream$2.prototype.init.call(this),this.parse708captions_="boolean"!=typeof options.parse708captions||options.parse708captions,this.captionPackets_=[],this.ccStreams_=[new Cea608Stream(0,0),new Cea608Stream(0,1),new Cea608Stream(1,0),new Cea608Stream(1,1)],this.parse708captions_&&(this.cc708Stream_=new Cea708Stream({captionServices:options.captionServices})),this.reset(),this.ccStreams_.forEach((function(cc){cc.on("data",this.trigger.bind(this,"data")),cc.on("partialdone",this.trigger.bind(this,"partialdone")),cc.on("done",this.trigger.bind(this,"done"))}),this),this.parse708captions_&&(this.cc708Stream_.on("data",this.trigger.bind(this,"data")),this.cc708Stream_.on("partialdone",this.trigger.bind(this,"partialdone")),this.cc708Stream_.on("done",this.trigger.bind(this,"done")))};CaptionStream$2.prototype=new Stream$7,CaptionStream$2.prototype.push=function(event){var sei,userData,newCaptionPackets;if("sei_rbsp"===event.nalUnitType&&(sei=cea708Parser.parseSei(event.escapedRBSP)).payload&&sei.payloadType===cea708Parser.USER_DATA_REGISTERED_ITU_T_T35&&(userData=cea708Parser.parseUserData(sei)))if(event.dts<this.latestDts_)this.ignoreNextEqualDts_=!0;else{if(event.dts===this.latestDts_&&this.ignoreNextEqualDts_)return this.numSameDts_--,void(this.numSameDts_||(this.ignoreNextEqualDts_=!1));newCaptionPackets=cea708Parser.parseCaptionPackets(event.pts,userData),this.captionPackets_=this.captionPackets_.concat(newCaptionPackets),this.latestDts_!==event.dts&&(this.numSameDts_=0),this.numSameDts_++,this.latestDts_=event.dts}},CaptionStream$2.prototype.flushCCStreams=function(flushType){this.ccStreams_.forEach((function(cc){return"flush"===flushType?cc.flush():cc.partialFlush()}),this)},CaptionStream$2.prototype.flushStream=function(flushType){this.captionPackets_.length?(this.captionPackets_.forEach((function(elem,idx){elem.presortIndex=idx})),this.captionPackets_.sort((function(a,b){return a.pts===b.pts?a.presortIndex-b.presortIndex:a.pts-b.pts})),this.captionPackets_.forEach((function(packet){packet.type<2?this.dispatchCea608Packet(packet):this.dispatchCea708Packet(packet)}),this),this.captionPackets_.length=0,this.flushCCStreams(flushType)):this.flushCCStreams(flushType)},CaptionStream$2.prototype.flush=function(){return this.flushStream("flush")},CaptionStream$2.prototype.partialFlush=function(){return this.flushStream("partialFlush")},CaptionStream$2.prototype.reset=function(){this.latestDts_=null,this.ignoreNextEqualDts_=!1,this.numSameDts_=0,this.activeCea608Channel_=[null,null],this.ccStreams_.forEach((function(ccStream){ccStream.reset()}))},CaptionStream$2.prototype.dispatchCea608Packet=function(packet){this.setsTextOrXDSActive(packet)?this.activeCea608Channel_[packet.type]=null:this.setsChannel1Active(packet)?this.activeCea608Channel_[packet.type]=0:this.setsChannel2Active(packet)&&(this.activeCea608Channel_[packet.type]=1),null!==this.activeCea608Channel_[packet.type]&&this.ccStreams_[(packet.type<<1)+this.activeCea608Channel_[packet.type]].push(packet)},CaptionStream$2.prototype.setsChannel1Active=function(packet){return 4096==(30720&packet.ccData)},CaptionStream$2.prototype.setsChannel2Active=function(packet){return 6144==(30720&packet.ccData)},CaptionStream$2.prototype.setsTextOrXDSActive=function(packet){return 256==(28928&packet.ccData)||4138==(30974&packet.ccData)||6186==(30974&packet.ccData)},CaptionStream$2.prototype.dispatchCea708Packet=function(packet){this.parse708captions_&&this.cc708Stream_.push(packet)};var CHARACTER_TRANSLATION_708={127:9834,4128:32,4129:160,4133:8230,4138:352,4140:338,4144:9608,4145:8216,4146:8217,4147:8220,4148:8221,4149:8226,4153:8482,4154:353,4156:339,4157:8480,4159:376,4214:8539,4215:8540,4216:8541,4217:8542,4218:9168,4219:9124,4220:9123,4221:9135,4222:9126,4223:9121,4256:12600},within708TextBlock=function(b){return 32<=b&&b<=127||160<=b&&b<=255},Cea708Window=function(windowNum){this.windowNum=windowNum,this.reset()};Cea708Window.prototype.reset=function(){this.clearText(),this.pendingNewLine=!1,this.winAttr={},this.penAttr={},this.penLoc={},this.penColor={},this.visible=0,this.rowLock=0,this.columnLock=0,this.priority=0,this.relativePositioning=0,this.anchorVertical=0,this.anchorHorizontal=0,this.anchorPoint=0,this.rowCount=1,this.virtualRowCount=this.rowCount+1,this.columnCount=41,this.windowStyle=0,this.penStyle=0},Cea708Window.prototype.getText=function(){return this.rows.join("\n")},Cea708Window.prototype.clearText=function(){this.rows=[""],this.rowIdx=0},Cea708Window.prototype.newLine=function(pts){for(this.rows.length>=this.virtualRowCount&&"function"==typeof this.beforeRowOverflow&&this.beforeRowOverflow(pts),this.rows.length>0&&(this.rows.push(""),this.rowIdx++);this.rows.length>this.virtualRowCount;)this.rows.shift(),this.rowIdx--},Cea708Window.prototype.isEmpty=function(){return 0===this.rows.length||1===this.rows.length&&""===this.rows[0]},Cea708Window.prototype.addText=function(text){this.rows[this.rowIdx]+=text},Cea708Window.prototype.backspace=function(){if(!this.isEmpty()){var row=this.rows[this.rowIdx];this.rows[this.rowIdx]=row.substr(0,row.length-1)}};var Cea708Service=function(serviceNum,encoding,stream){this.serviceNum=serviceNum,this.text="",this.currentWindow=new Cea708Window(-1),this.windows=[],this.stream=stream,"string"==typeof encoding&&this.createTextDecoder(encoding)};Cea708Service.prototype.init=function(pts,beforeRowOverflow){this.startPts=pts;for(var win=0;win<8;win++)this.windows[win]=new Cea708Window(win),"function"==typeof beforeRowOverflow&&(this.windows[win].beforeRowOverflow=beforeRowOverflow)},Cea708Service.prototype.setCurrentWindow=function(windowNum){this.currentWindow=this.windows[windowNum]},Cea708Service.prototype.createTextDecoder=function(encoding){if("undefined"==typeof TextDecoder)this.stream.trigger("log",{level:"warn",message:"The `encoding` option is unsupported without TextDecoder support"});else try{this.textDecoder_=new TextDecoder(encoding)}catch(error){this.stream.trigger("log",{level:"warn",message:"TextDecoder could not be created with "+encoding+" encoding. "+error})}};var Cea708Stream=function(options){options=options||{},Cea708Stream.prototype.init.call(this);var serviceProps,self=this,captionServices=options.captionServices||{},captionServiceEncodings={};Object.keys(captionServices).forEach((serviceName=>{serviceProps=captionServices[serviceName],/^SERVICE/.test(serviceName)&&(captionServiceEncodings[serviceName]=serviceProps.encoding)})),this.serviceEncodings=captionServiceEncodings,this.current708Packet=null,this.services={},this.push=function(packet){3===packet.type?(self.new708Packet(),self.add708Bytes(packet)):(null===self.current708Packet&&self.new708Packet(),self.add708Bytes(packet))}};Cea708Stream.prototype=new Stream$7,Cea708Stream.prototype.new708Packet=function(){null!==this.current708Packet&&this.push708Packet(),this.current708Packet={data:[],ptsVals:[]}},Cea708Stream.prototype.add708Bytes=function(packet){var data=packet.ccData,byte0=data>>>8,byte1=255&data;this.current708Packet.ptsVals.push(packet.pts),this.current708Packet.data.push(byte0),this.current708Packet.data.push(byte1)},Cea708Stream.prototype.push708Packet=function(){var packet708=this.current708Packet,packetData=packet708.data,serviceNum=null,blockSize=null,i=0,b=packetData[i++];for(packet708.seq=b>>6,packet708.sizeCode=63&b;i<packetData.length;i++)blockSize=31&(b=packetData[i++]),7===(serviceNum=b>>5)&&blockSize>0&&(serviceNum=b=packetData[i++]),this.pushServiceBlock(serviceNum,i,blockSize),blockSize>0&&(i+=blockSize-1)},Cea708Stream.prototype.pushServiceBlock=function(serviceNum,start,size){var b,i=start,packetData=this.current708Packet.data,service=this.services[serviceNum];for(service||(service=this.initService(serviceNum,i));i<start+size&&i<packetData.length;i++)b=packetData[i],within708TextBlock(b)?i=this.handleText(i,service):24===b?i=this.multiByteCharacter(i,service):16===b?i=this.extendedCommands(i,service):128<=b&&b<=135?i=this.setCurrentWindow(i,service):152<=b&&b<=159?i=this.defineWindow(i,service):136===b?i=this.clearWindows(i,service):140===b?i=this.deleteWindows(i,service):137===b?i=this.displayWindows(i,service):138===b?i=this.hideWindows(i,service):139===b?i=this.toggleWindows(i,service):151===b?i=this.setWindowAttributes(i,service):144===b?i=this.setPenAttributes(i,service):145===b?i=this.setPenColor(i,service):146===b?i=this.setPenLocation(i,service):143===b?service=this.reset(i,service):8===b?service.currentWindow.backspace():12===b?service.currentWindow.clearText():13===b?service.currentWindow.pendingNewLine=!0:14===b?service.currentWindow.clearText():141===b&&i++},Cea708Stream.prototype.extendedCommands=function(i,service){var b=this.current708Packet.data[++i];return within708TextBlock(b)&&(i=this.handleText(i,service,{isExtended:!0})),i},Cea708Stream.prototype.getPts=function(byteIndex){return this.current708Packet.ptsVals[Math.floor(byteIndex/2)]},Cea708Stream.prototype.initService=function(serviceNum,i){var serviceName,encoding,self=this;return(serviceName="SERVICE"+serviceNum)in this.serviceEncodings&&(encoding=this.serviceEncodings[serviceName]),this.services[serviceNum]=new Cea708Service(serviceNum,encoding,self),this.services[serviceNum].init(this.getPts(i),(function(pts){self.flushDisplayed(pts,self.services[serviceNum])})),this.services[serviceNum]},Cea708Stream.prototype.handleText=function(i,service,options){var char,charCodeArray,code,newCode,isExtended=options&&options.isExtended,isMultiByte=options&&options.isMultiByte,packetData=this.current708Packet.data,extended=isExtended?4096:0,currentByte=packetData[i],nextByte=packetData[i+1],win=service.currentWindow;return service.textDecoder_&&!isExtended?(isMultiByte?(charCodeArray=[currentByte,nextByte],i++):charCodeArray=[currentByte],char=service.textDecoder_.decode(new Uint8Array(charCodeArray))):(newCode=CHARACTER_TRANSLATION_708[code=extended|currentByte]||code,char=4096&code&&code===newCode?"":String.fromCharCode(newCode)),win.pendingNewLine&&!win.isEmpty()&&win.newLine(this.getPts(i)),win.pendingNewLine=!1,win.addText(char),i},Cea708Stream.prototype.multiByteCharacter=function(i,service){var packetData=this.current708Packet.data,firstByte=packetData[i+1],secondByte=packetData[i+2];return within708TextBlock(firstByte)&&within708TextBlock(secondByte)&&(i=this.handleText(++i,service,{isMultiByte:!0})),i},Cea708Stream.prototype.setCurrentWindow=function(i,service){var windowNum=7&this.current708Packet.data[i];return service.setCurrentWindow(windowNum),i},Cea708Stream.prototype.defineWindow=function(i,service){var packetData=this.current708Packet.data,b=packetData[i],windowNum=7&b;service.setCurrentWindow(windowNum);var win=service.currentWindow;return b=packetData[++i],win.visible=(32&b)>>5,win.rowLock=(16&b)>>4,win.columnLock=(8&b)>>3,win.priority=7&b,b=packetData[++i],win.relativePositioning=(128&b)>>7,win.anchorVertical=127&b,b=packetData[++i],win.anchorHorizontal=b,b=packetData[++i],win.anchorPoint=(240&b)>>4,win.rowCount=15&b,b=packetData[++i],win.columnCount=63&b,b=packetData[++i],win.windowStyle=(56&b)>>3,win.penStyle=7&b,win.virtualRowCount=win.rowCount+1,i},Cea708Stream.prototype.setWindowAttributes=function(i,service){var packetData=this.current708Packet.data,b=packetData[i],winAttr=service.currentWindow.winAttr;return b=packetData[++i],winAttr.fillOpacity=(192&b)>>6,winAttr.fillRed=(48&b)>>4,winAttr.fillGreen=(12&b)>>2,winAttr.fillBlue=3&b,b=packetData[++i],winAttr.borderType=(192&b)>>6,winAttr.borderRed=(48&b)>>4,winAttr.borderGreen=(12&b)>>2,winAttr.borderBlue=3&b,b=packetData[++i],winAttr.borderType+=(128&b)>>5,winAttr.wordWrap=(64&b)>>6,winAttr.printDirection=(48&b)>>4,winAttr.scrollDirection=(12&b)>>2,winAttr.justify=3&b,b=packetData[++i],winAttr.effectSpeed=(240&b)>>4,winAttr.effectDirection=(12&b)>>2,winAttr.displayEffect=3&b,i},Cea708Stream.prototype.flushDisplayed=function(pts,service){for(var displayedText=[],winId=0;winId<8;winId++)service.windows[winId].visible&&!service.windows[winId].isEmpty()&&displayedText.push(service.windows[winId].getText());service.endPts=pts,service.text=displayedText.join("\n\n"),this.pushCaption(service),service.startPts=pts},Cea708Stream.prototype.pushCaption=function(service){""!==service.text&&(this.trigger("data",{startPts:service.startPts,endPts:service.endPts,text:service.text,stream:"cc708_"+service.serviceNum}),service.text="",service.startPts=service.endPts)},Cea708Stream.prototype.displayWindows=function(i,service){var b=this.current708Packet.data[++i],pts=this.getPts(i);this.flushDisplayed(pts,service);for(var winId=0;winId<8;winId++)b&1<<winId&&(service.windows[winId].visible=1);return i},Cea708Stream.prototype.hideWindows=function(i,service){var b=this.current708Packet.data[++i],pts=this.getPts(i);this.flushDisplayed(pts,service);for(var winId=0;winId<8;winId++)b&1<<winId&&(service.windows[winId].visible=0);return i},Cea708Stream.prototype.toggleWindows=function(i,service){var b=this.current708Packet.data[++i],pts=this.getPts(i);this.flushDisplayed(pts,service);for(var winId=0;winId<8;winId++)b&1<<winId&&(service.windows[winId].visible^=1);return i},Cea708Stream.prototype.clearWindows=function(i,service){var b=this.current708Packet.data[++i],pts=this.getPts(i);this.flushDisplayed(pts,service);for(var winId=0;winId<8;winId++)b&1<<winId&&service.windows[winId].clearText();return i},Cea708Stream.prototype.deleteWindows=function(i,service){var b=this.current708Packet.data[++i],pts=this.getPts(i);this.flushDisplayed(pts,service);for(var winId=0;winId<8;winId++)b&1<<winId&&service.windows[winId].reset();return i},Cea708Stream.prototype.setPenAttributes=function(i,service){var packetData=this.current708Packet.data,b=packetData[i],penAttr=service.currentWindow.penAttr;return b=packetData[++i],penAttr.textTag=(240&b)>>4,penAttr.offset=(12&b)>>2,penAttr.penSize=3&b,b=packetData[++i],penAttr.italics=(128&b)>>7,penAttr.underline=(64&b)>>6,penAttr.edgeType=(56&b)>>3,penAttr.fontStyle=7&b,i},Cea708Stream.prototype.setPenColor=function(i,service){var packetData=this.current708Packet.data,b=packetData[i],penColor=service.currentWindow.penColor;return b=packetData[++i],penColor.fgOpacity=(192&b)>>6,penColor.fgRed=(48&b)>>4,penColor.fgGreen=(12&b)>>2,penColor.fgBlue=3&b,b=packetData[++i],penColor.bgOpacity=(192&b)>>6,penColor.bgRed=(48&b)>>4,penColor.bgGreen=(12&b)>>2,penColor.bgBlue=3&b,b=packetData[++i],penColor.edgeRed=(48&b)>>4,penColor.edgeGreen=(12&b)>>2,penColor.edgeBlue=3&b,i},Cea708Stream.prototype.setPenLocation=function(i,service){var packetData=this.current708Packet.data,b=packetData[i],penLoc=service.currentWindow.penLoc;return service.currentWindow.pendingNewLine=!0,b=packetData[++i],penLoc.row=15&b,b=packetData[++i],penLoc.column=63&b,i},Cea708Stream.prototype.reset=function(i,service){var pts=this.getPts(i);return this.flushDisplayed(pts,service),this.initService(service.serviceNum,i)};var CHARACTER_TRANSLATION={42:225,92:233,94:237,95:243,96:250,123:231,124:247,125:209,126:241,127:9608,304:174,305:176,306:189,307:191,308:8482,309:162,310:163,311:9834,312:224,313:160,314:232,315:226,316:234,317:238,318:244,319:251,544:193,545:201,546:211,547:218,548:220,549:252,550:8216,551:161,552:42,553:39,554:8212,555:169,556:8480,557:8226,558:8220,559:8221,560:192,561:194,562:199,563:200,564:202,565:203,566:235,567:206,568:207,569:239,570:212,571:217,572:249,573:219,574:171,575:187,800:195,801:227,802:205,803:204,804:236,805:210,806:242,807:213,808:245,809:123,810:125,811:92,812:94,813:95,814:124,815:126,816:196,817:228,818:214,819:246,820:223,821:165,822:164,823:9474,824:197,825:229,826:216,827:248,828:9484,829:9488,830:9492,831:9496},getCharFromCode=function(code){return null===code?"":(code=CHARACTER_TRANSLATION[code]||code,String.fromCharCode(code))},ROWS=[4352,4384,4608,4640,5376,5408,5632,5664,5888,5920,4096,4864,4896,5120,5152],createDisplayBuffer=function(){for(var result=[],i=15;i--;)result.push("");return result},Cea608Stream=function(field,dataChannel){Cea608Stream.prototype.init.call(this),this.field_=field||0,this.dataChannel_=dataChannel||0,this.name_="CC"+(1+(this.field_<<1|this.dataChannel_)),this.setConstants(),this.reset(),this.push=function(packet){var data,swap,char0,char1,text;if((data=32639&packet.ccData)!==this.lastControlCode_){if(4096==(61440&data)?this.lastControlCode_=data:data!==this.PADDING_&&(this.lastControlCode_=null),char0=data>>>8,char1=255&data,data!==this.PADDING_)if(data===this.RESUME_CAPTION_LOADING_)this.mode_="popOn";else if(data===this.END_OF_CAPTION_)this.mode_="popOn",this.clearFormatting(packet.pts),this.flushDisplayed(packet.pts),swap=this.displayed_,this.displayed_=this.nonDisplayed_,this.nonDisplayed_=swap,this.startPts_=packet.pts;else if(data===this.ROLL_UP_2_ROWS_)this.rollUpRows_=2,this.setRollUp(packet.pts);else if(data===this.ROLL_UP_3_ROWS_)this.rollUpRows_=3,this.setRollUp(packet.pts);else if(data===this.ROLL_UP_4_ROWS_)this.rollUpRows_=4,this.setRollUp(packet.pts);else if(data===this.CARRIAGE_RETURN_)this.clearFormatting(packet.pts),this.flushDisplayed(packet.pts),this.shiftRowsUp_(),this.startPts_=packet.pts;else if(data===this.BACKSPACE_)"popOn"===this.mode_?this.nonDisplayed_[this.row_]=this.nonDisplayed_[this.row_].slice(0,-1):this.displayed_[this.row_]=this.displayed_[this.row_].slice(0,-1);else if(data===this.ERASE_DISPLAYED_MEMORY_)this.flushDisplayed(packet.pts),this.displayed_=createDisplayBuffer();else if(data===this.ERASE_NON_DISPLAYED_MEMORY_)this.nonDisplayed_=createDisplayBuffer();else if(data===this.RESUME_DIRECT_CAPTIONING_)"paintOn"!==this.mode_&&(this.flushDisplayed(packet.pts),this.displayed_=createDisplayBuffer()),this.mode_="paintOn",this.startPts_=packet.pts;else if(this.isSpecialCharacter(char0,char1))text=getCharFromCode((char0=(3&char0)<<8)|char1),this[this.mode_](packet.pts,text),this.column_++;else if(this.isExtCharacter(char0,char1))"popOn"===this.mode_?this.nonDisplayed_[this.row_]=this.nonDisplayed_[this.row_].slice(0,-1):this.displayed_[this.row_]=this.displayed_[this.row_].slice(0,-1),text=getCharFromCode((char0=(3&char0)<<8)|char1),this[this.mode_](packet.pts,text),this.column_++;else if(this.isMidRowCode(char0,char1))this.clearFormatting(packet.pts),this[this.mode_](packet.pts," "),this.column_++,14==(14&char1)&&this.addFormatting(packet.pts,["i"]),1==(1&char1)&&this.addFormatting(packet.pts,["u"]);else if(this.isOffsetControlCode(char0,char1))this.column_+=3&char1;else if(this.isPAC(char0,char1)){var row=ROWS.indexOf(7968&data);"rollUp"===this.mode_&&(row-this.rollUpRows_+1<0&&(row=this.rollUpRows_-1),this.setRollUp(packet.pts,row)),row!==this.row_&&(this.clearFormatting(packet.pts),this.row_=row),1&char1&&-1===this.formatting_.indexOf("u")&&this.addFormatting(packet.pts,["u"]),16==(16&data)&&(this.column_=4*((14&data)>>1)),this.isColorPAC(char1)&&14==(14&char1)&&this.addFormatting(packet.pts,["i"])}else this.isNormalChar(char0)&&(0===char1&&(char1=null),text=getCharFromCode(char0),text+=getCharFromCode(char1),this[this.mode_](packet.pts,text),this.column_+=text.length)}else this.lastControlCode_=null}};Cea608Stream.prototype=new Stream$7,Cea608Stream.prototype.flushDisplayed=function(pts){var content=this.displayed_.map((function(row,index){try{return row.trim()}catch(e){return this.trigger("log",{level:"warn",message:"Skipping a malformed 608 caption at index "+index+"."}),""}}),this).join("\n").replace(/^\n+|\n+$/g,"");content.length&&this.trigger("data",{startPts:this.startPts_,endPts:pts,text:content,stream:this.name_})},Cea608Stream.prototype.reset=function(){this.mode_="popOn",this.topRow_=0,this.startPts_=0,this.displayed_=createDisplayBuffer(),this.nonDisplayed_=createDisplayBuffer(),this.lastControlCode_=null,this.column_=0,this.row_=14,this.rollUpRows_=2,this.formatting_=[]},Cea608Stream.prototype.setConstants=function(){0===this.dataChannel_?(this.BASE_=16,this.EXT_=17,this.CONTROL_=(20|this.field_)<<8,this.OFFSET_=23):1===this.dataChannel_&&(this.BASE_=24,this.EXT_=25,this.CONTROL_=(28|this.field_)<<8,this.OFFSET_=31),this.PADDING_=0,this.RESUME_CAPTION_LOADING_=32|this.CONTROL_,this.END_OF_CAPTION_=47|this.CONTROL_,this.ROLL_UP_2_ROWS_=37|this.CONTROL_,this.ROLL_UP_3_ROWS_=38|this.CONTROL_,this.ROLL_UP_4_ROWS_=39|this.CONTROL_,this.CARRIAGE_RETURN_=45|this.CONTROL_,this.RESUME_DIRECT_CAPTIONING_=41|this.CONTROL_,this.BACKSPACE_=33|this.CONTROL_,this.ERASE_DISPLAYED_MEMORY_=44|this.CONTROL_,this.ERASE_NON_DISPLAYED_MEMORY_=46|this.CONTROL_},Cea608Stream.prototype.isSpecialCharacter=function(char0,char1){return char0===this.EXT_&&char1>=48&&char1<=63},Cea608Stream.prototype.isExtCharacter=function(char0,char1){return(char0===this.EXT_+1||char0===this.EXT_+2)&&char1>=32&&char1<=63},Cea608Stream.prototype.isMidRowCode=function(char0,char1){return char0===this.EXT_&&char1>=32&&char1<=47},Cea608Stream.prototype.isOffsetControlCode=function(char0,char1){return char0===this.OFFSET_&&char1>=33&&char1<=35},Cea608Stream.prototype.isPAC=function(char0,char1){return char0>=this.BASE_&&char0<this.BASE_+8&&char1>=64&&char1<=127},Cea608Stream.prototype.isColorPAC=function(char1){return char1>=64&&char1<=79||char1>=96&&char1<=127},Cea608Stream.prototype.isNormalChar=function(char){return char>=32&&char<=127},Cea608Stream.prototype.setRollUp=function(pts,newBaseRow){if("rollUp"!==this.mode_&&(this.row_=14,this.mode_="rollUp",this.flushDisplayed(pts),this.nonDisplayed_=createDisplayBuffer(),this.displayed_=createDisplayBuffer()),void 0!==newBaseRow&&newBaseRow!==this.row_)for(var i=0;i<this.rollUpRows_;i++)this.displayed_[newBaseRow-i]=this.displayed_[this.row_-i],this.displayed_[this.row_-i]="";void 0===newBaseRow&&(newBaseRow=this.row_),this.topRow_=newBaseRow-this.rollUpRows_+1},Cea608Stream.prototype.addFormatting=function(pts,format){this.formatting_=this.formatting_.concat(format);var text=format.reduce((function(text,format){return text+"<"+format+">"}),"");this[this.mode_](pts,text)},Cea608Stream.prototype.clearFormatting=function(pts){if(this.formatting_.length){var text=this.formatting_.reverse().reduce((function(text,format){return text+"</"+format+">"}),"");this.formatting_=[],this[this.mode_](pts,text)}},Cea608Stream.prototype.popOn=function(pts,text){var baseRow=this.nonDisplayed_[this.row_];baseRow+=text,this.nonDisplayed_[this.row_]=baseRow},Cea608Stream.prototype.rollUp=function(pts,text){var baseRow=this.displayed_[this.row_];baseRow+=text,this.displayed_[this.row_]=baseRow},Cea608Stream.prototype.shiftRowsUp_=function(){var i;for(i=0;i<this.topRow_;i++)this.displayed_[i]="";for(i=this.row_+1;i<15;i++)this.displayed_[i]="";for(i=this.topRow_;i<this.row_;i++)this.displayed_[i]=this.displayed_[i+1];this.displayed_[this.row_]=""},Cea608Stream.prototype.paintOn=function(pts,text){var baseRow=this.displayed_[this.row_];baseRow+=text,this.displayed_[this.row_]=baseRow};var captionStream={CaptionStream:CaptionStream$2,Cea608Stream:Cea608Stream,Cea708Stream:Cea708Stream},streamTypes={H264_STREAM_TYPE:27,ADTS_STREAM_TYPE:15,METADATA_STREAM_TYPE:21},Stream$6=stream,handleRollover$1=function(value,reference){var direction=1;for(value>reference&&(direction=-1);Math.abs(reference-value)>4294967296;)value+=8589934592*direction;return value},TimestampRolloverStream$1=function(type){var lastDTS,referenceDTS;TimestampRolloverStream$1.prototype.init.call(this),this.type_=type||"shared",this.push=function(data){"shared"!==this.type_&&data.type!==this.type_||(void 0===referenceDTS&&(referenceDTS=data.dts),data.dts=handleRollover$1(data.dts,referenceDTS),data.pts=handleRollover$1(data.pts,referenceDTS),lastDTS=data.dts,this.trigger("data",data))},this.flush=function(){referenceDTS=lastDTS,this.trigger("done")},this.endTimeline=function(){this.flush(),this.trigger("endedtimeline")},this.discontinuity=function(){referenceDTS=void 0,lastDTS=void 0},this.reset=function(){this.discontinuity(),this.trigger("reset")}};TimestampRolloverStream$1.prototype=new Stream$6;var MetadataStream,timestampRolloverStream={TimestampRolloverStream:TimestampRolloverStream$1,handleRollover:handleRollover$1},typedArray_typedArrayIndexOf=(typedArray,element,fromIndex)=>{if(!typedArray)return-1;for(var currentIndex=fromIndex;currentIndex<typedArray.length;currentIndex++)if(typedArray[currentIndex]===element)return currentIndex;return-1},typedArrayIndexOf=typedArray_typedArrayIndexOf,textEncodingDescriptionByte_Utf8=3,percentEncode$1=function(bytes,start,end){var i,result="";for(i=start;i<end;i++)result+="%"+("00"+bytes[i].toString(16)).slice(-2);return result},parseUtf8=function(bytes,start,end){return decodeURIComponent(percentEncode$1(bytes,start,end))},parseIso88591$1=function(bytes,start,end){return unescape(percentEncode$1(bytes,start,end))},parseSyncSafeInteger$1=function(data){return data[0]<<21|data[1]<<14|data[2]<<7|data[3]},frameParsers={APIC:function(frame){var mimeTypeEndIndex,descriptionEndIndex,i=1;frame.data[0]===textEncodingDescriptionByte_Utf8&&((mimeTypeEndIndex=typedArrayIndexOf(frame.data,0,i))<0||(frame.mimeType=parseIso88591$1(frame.data,i,mimeTypeEndIndex),i=mimeTypeEndIndex+1,frame.pictureType=frame.data[i],i++,(descriptionEndIndex=typedArrayIndexOf(frame.data,0,i))<0||(frame.description=parseUtf8(frame.data,i,descriptionEndIndex),i=descriptionEndIndex+1,"--\x3e"===frame.mimeType?frame.url=parseIso88591$1(frame.data,i,frame.data.length):frame.pictureData=frame.data.subarray(i,frame.data.length))))},"T*":function(frame){frame.data[0]===textEncodingDescriptionByte_Utf8&&(frame.value=parseUtf8(frame.data,1,frame.data.length).replace(/\0*$/,""),frame.values=frame.value.split("\0"))},TXXX:function(frame){var descriptionEndIndex;frame.data[0]===textEncodingDescriptionByte_Utf8&&-1!==(descriptionEndIndex=typedArrayIndexOf(frame.data,0,1))&&(frame.description=parseUtf8(frame.data,1,descriptionEndIndex),frame.value=parseUtf8(frame.data,descriptionEndIndex+1,frame.data.length).replace(/\0*$/,""),frame.data=frame.value)},"W*":function(frame){frame.url=parseIso88591$1(frame.data,0,frame.data.length).replace(/\0.*$/,"")},WXXX:function(frame){var descriptionEndIndex;frame.data[0]===textEncodingDescriptionByte_Utf8&&-1!==(descriptionEndIndex=typedArrayIndexOf(frame.data,0,1))&&(frame.description=parseUtf8(frame.data,1,descriptionEndIndex),frame.url=parseIso88591$1(frame.data,descriptionEndIndex+1,frame.data.length).replace(/\0.*$/,""))},PRIV:function(frame){var i;for(i=0;i<frame.data.length;i++)if(0===frame.data[i]){frame.owner=parseIso88591$1(frame.data,0,i);break}frame.privateData=frame.data.subarray(i+1),frame.data=frame.privateData}},parseId3={parseId3Frames:function(data){var frameSize,frameStart=10,tagSize=0,frames=[];if(!(data.length<10||data[0]!=="I".charCodeAt(0)||data[1]!=="D".charCodeAt(0)||data[2]!=="3".charCodeAt(0))){tagSize=parseSyncSafeInteger$1(data.subarray(6,10)),tagSize+=10,64&data[5]&&(frameStart+=4,frameStart+=parseSyncSafeInteger$1(data.subarray(10,14)),tagSize-=parseSyncSafeInteger$1(data.subarray(16,20)));do{if((frameSize=parseSyncSafeInteger$1(data.subarray(frameStart+4,frameStart+8)))<1)break;var frame={id:String.fromCharCode(data[frameStart],data[frameStart+1],data[frameStart+2],data[frameStart+3]),data:data.subarray(frameStart+10,frameStart+frameSize+10)};frame.key=frame.id,frameParsers[frame.id]?frameParsers[frame.id](frame):"T"===frame.id[0]?frameParsers["T*"](frame):"W"===frame.id[0]&&frameParsers["W*"](frame),frames.push(frame),frameStart+=10,frameStart+=frameSize}while(frameStart<tagSize);return frames}},parseSyncSafeInteger:parseSyncSafeInteger$1,frameParsers:frameParsers},StreamTypes$3=streamTypes,id3=parseId3;(MetadataStream=function(options){var i,settings={descriptor:options&&options.descriptor},tagSize=0,buffer=[],bufferSize=0;if(MetadataStream.prototype.init.call(this),this.dispatchType=StreamTypes$3.METADATA_STREAM_TYPE.toString(16),settings.descriptor)for(i=0;i<settings.descriptor.length;i++)this.dispatchType+=("00"+settings.descriptor[i].toString(16)).slice(-2);this.push=function(chunk){var tag,frameStart,frameSize,frame,i;if("timed-metadata"===chunk.type)if(chunk.dataAlignmentIndicator&&(bufferSize=0,buffer.length=0),0===buffer.length&&(chunk.data.length<10||chunk.data[0]!=="I".charCodeAt(0)||chunk.data[1]!=="D".charCodeAt(0)||chunk.data[2]!=="3".charCodeAt(0)))this.trigger("log",{level:"warn",message:"Skipping unrecognized metadata packet"});else if(buffer.push(chunk),bufferSize+=chunk.data.byteLength,1===buffer.length&&(tagSize=id3.parseSyncSafeInteger(chunk.data.subarray(6,10)),tagSize+=10),!(bufferSize<tagSize)){for(tag={data:new Uint8Array(tagSize),frames:[],pts:buffer[0].pts,dts:buffer[0].dts},i=0;i<tagSize;)tag.data.set(buffer[0].data.subarray(0,tagSize-i),i),i+=buffer[0].data.byteLength,bufferSize-=buffer[0].data.byteLength,buffer.shift();frameStart=10,64&tag.data[5]&&(frameStart+=4,frameStart+=id3.parseSyncSafeInteger(tag.data.subarray(10,14)),tagSize-=id3.parseSyncSafeInteger(tag.data.subarray(16,20)));do{if((frameSize=id3.parseSyncSafeInteger(tag.data.subarray(frameStart+4,frameStart+8)))<1){this.trigger("log",{level:"warn",message:"Malformed ID3 frame encountered. Skipping remaining metadata parsing."});break}if((frame={id:String.fromCharCode(tag.data[frameStart],tag.data[frameStart+1],tag.data[frameStart+2],tag.data[frameStart+3]),data:tag.data.subarray(frameStart+10,frameStart+frameSize+10)}).key=frame.id,id3.frameParsers[frame.id]?id3.frameParsers[frame.id](frame):"T"===frame.id[0]?id3.frameParsers["T*"](frame):"W"===frame.id[0]&&id3.frameParsers["W*"](frame),"com.apple.streaming.transportStreamTimestamp"===frame.owner){var d=frame.data,size=(1&d[3])<<30|d[4]<<22|d[5]<<14|d[6]<<6|d[7]>>>2;size*=4,size+=3&d[7],frame.timeStamp=size,void 0===tag.pts&&void 0===tag.dts&&(tag.pts=frame.timeStamp,tag.dts=frame.timeStamp),this.trigger("timestamp",frame)}tag.frames.push(frame),frameStart+=10,frameStart+=frameSize}while(frameStart<tagSize);this.trigger("data",tag)}}}).prototype=new stream;var TransportPacketStream,TransportParseStream,ElementaryStream,metadataStream=MetadataStream,Stream$4=stream,CaptionStream$1=captionStream,StreamTypes$2=streamTypes,TimestampRolloverStream=timestampRolloverStream.TimestampRolloverStream;(TransportPacketStream=function(){var buffer=new Uint8Array(188),bytesInBuffer=0;TransportPacketStream.prototype.init.call(this),this.push=function(bytes){var everything,startIndex=0,endIndex=188;for(bytesInBuffer?((everything=new Uint8Array(bytes.byteLength+bytesInBuffer)).set(buffer.subarray(0,bytesInBuffer)),everything.set(bytes,bytesInBuffer),bytesInBuffer=0):everything=bytes;endIndex<everything.byteLength;)71!==everything[startIndex]||71!==everything[endIndex]?(startIndex++,endIndex++):(this.trigger("data",everything.subarray(startIndex,endIndex)),startIndex+=188,endIndex+=188);startIndex<everything.byteLength&&(buffer.set(everything.subarray(startIndex),0),bytesInBuffer=everything.byteLength-startIndex)},this.flush=function(){188===bytesInBuffer&&71===buffer[0]&&(this.trigger("data",buffer),bytesInBuffer=0),this.trigger("done")},this.endTimeline=function(){this.flush(),this.trigger("endedtimeline")},this.reset=function(){bytesInBuffer=0,this.trigger("reset")}}).prototype=new Stream$4,TransportParseStream=function(){var parsePsi,parsePat,parsePmt,self;TransportParseStream.prototype.init.call(this),self=this,this.packetsWaitingForPmt=[],this.programMapTable=void 0,parsePsi=function(payload,psi){var offset=0;psi.payloadUnitStartIndicator&&(offset+=payload[offset]+1),"pat"===psi.type?parsePat(payload.subarray(offset),psi):parsePmt(payload.subarray(offset),psi)},parsePat=function(payload,pat){pat.section_number=payload[7],pat.last_section_number=payload[8],self.pmtPid=(31&payload[10])<<8|payload[11],pat.pmtPid=self.pmtPid},parsePmt=function(payload,pmt){var tableEnd,offset;if(1&payload[5]){for(self.programMapTable={video:null,audio:null,"timed-metadata":{}},tableEnd=3+((15&payload[1])<<8|payload[2])-4,offset=12+((15&payload[10])<<8|payload[11]);offset<tableEnd;){var streamType=payload[offset],pid=(31&payload[offset+1])<<8|payload[offset+2];streamType===StreamTypes$2.H264_STREAM_TYPE&&null===self.programMapTable.video?self.programMapTable.video=pid:streamType===StreamTypes$2.ADTS_STREAM_TYPE&&null===self.programMapTable.audio?self.programMapTable.audio=pid:streamType===StreamTypes$2.METADATA_STREAM_TYPE&&(self.programMapTable["timed-metadata"][pid]=streamType),offset+=5+((15&payload[offset+3])<<8|payload[offset+4])}pmt.programMapTable=self.programMapTable}},this.push=function(packet){var result={},offset=4;if(result.payloadUnitStartIndicator=!!(64&packet[1]),result.pid=31&packet[1],result.pid<<=8,result.pid|=packet[2],(48&packet[3])>>>4>1&&(offset+=packet[offset]+1),0===result.pid)result.type="pat",parsePsi(packet.subarray(offset),result),this.trigger("data",result);else if(result.pid===this.pmtPid)for(result.type="pmt",parsePsi(packet.subarray(offset),result),this.trigger("data",result);this.packetsWaitingForPmt.length;)this.processPes_.apply(this,this.packetsWaitingForPmt.shift());else void 0===this.programMapTable?this.packetsWaitingForPmt.push([packet,offset,result]):this.processPes_(packet,offset,result)},this.processPes_=function(packet,offset,result){result.pid===this.programMapTable.video?result.streamType=StreamTypes$2.H264_STREAM_TYPE:result.pid===this.programMapTable.audio?result.streamType=StreamTypes$2.ADTS_STREAM_TYPE:result.streamType=this.programMapTable["timed-metadata"][result.pid],result.type="pes",result.data=packet.subarray(offset),this.trigger("data",result)}},TransportParseStream.prototype=new Stream$4,TransportParseStream.STREAM_TYPES={h264:27,adts:15},ElementaryStream=function(){var programMapTable,self=this,segmentHadPmt=!1,video={data:[],size:0},audio={data:[],size:0},timedMetadata={data:[],size:0},flushStream=function(stream,type,forceFlush){var packetFlushable,fragment,packetData=new Uint8Array(stream.size),event={type:type},i=0,offset=0;if(stream.data.length&&!(stream.size<9)){for(event.trackId=stream.data[0].pid,i=0;i<stream.data.length;i++)fragment=stream.data[i],packetData.set(fragment.data,offset),offset+=fragment.data.byteLength;!function(payload,pes){var ptsDtsFlags;const startPrefix=payload[0]<<16|payload[1]<<8|payload[2];pes.data=new Uint8Array,1===startPrefix&&(pes.packetLength=6+(payload[4]<<8|payload[5]),pes.dataAlignmentIndicator=0!=(4&payload[6]),192&(ptsDtsFlags=payload[7])&&(pes.pts=(14&payload[9])<<27|(255&payload[10])<<20|(254&payload[11])<<12|(255&payload[12])<<5|(254&payload[13])>>>3,pes.pts*=4,pes.pts+=(6&payload[13])>>>1,pes.dts=pes.pts,64&ptsDtsFlags&&(pes.dts=(14&payload[14])<<27|(255&payload[15])<<20|(254&payload[16])<<12|(255&payload[17])<<5|(254&payload[18])>>>3,pes.dts*=4,pes.dts+=(6&payload[18])>>>1)),pes.data=payload.subarray(9+payload[8]))}(packetData,event),packetFlushable="video"===type||event.packetLength<=stream.size,(forceFlush||packetFlushable)&&(stream.size=0,stream.data.length=0),packetFlushable&&self.trigger("data",event)}};ElementaryStream.prototype.init.call(this),this.push=function(data){({pat:function(){},pes:function(){var stream,streamType;switch(data.streamType){case StreamTypes$2.H264_STREAM_TYPE:stream=video,streamType="video";break;case StreamTypes$2.ADTS_STREAM_TYPE:stream=audio,streamType="audio";break;case StreamTypes$2.METADATA_STREAM_TYPE:stream=timedMetadata,streamType="timed-metadata";break;default:return}data.payloadUnitStartIndicator&&flushStream(stream,streamType,!0),stream.data.push(data),stream.size+=data.data.byteLength},pmt:function(){var event={type:"metadata",tracks:[]};null!==(programMapTable=data.programMapTable).video&&event.tracks.push({timelineStartInfo:{baseMediaDecodeTime:0},id:+programMapTable.video,codec:"avc",type:"video"}),null!==programMapTable.audio&&event.tracks.push({timelineStartInfo:{baseMediaDecodeTime:0},id:+programMapTable.audio,codec:"adts",type:"audio"}),segmentHadPmt=!0,self.trigger("data",event)}})[data.type]()},this.reset=function(){video.size=0,video.data.length=0,audio.size=0,audio.data.length=0,this.trigger("reset")},this.flushStreams_=function(){flushStream(video,"video"),flushStream(audio,"audio"),flushStream(timedMetadata,"timed-metadata")},this.flush=function(){if(!segmentHadPmt&&programMapTable){var pmt={type:"metadata",tracks:[]};null!==programMapTable.video&&pmt.tracks.push({timelineStartInfo:{baseMediaDecodeTime:0},id:+programMapTable.video,codec:"avc",type:"video"}),null!==programMapTable.audio&&pmt.tracks.push({timelineStartInfo:{baseMediaDecodeTime:0},id:+programMapTable.audio,codec:"adts",type:"audio"}),self.trigger("data",pmt)}segmentHadPmt=!1,this.flushStreams_(),this.trigger("done")}},ElementaryStream.prototype=new Stream$4;var m2ts$1={PAT_PID:0,MP2T_PACKET_LENGTH:188,TransportPacketStream:TransportPacketStream,TransportParseStream:TransportParseStream,ElementaryStream:ElementaryStream,TimestampRolloverStream:TimestampRolloverStream,CaptionStream:CaptionStream$1.CaptionStream,Cea608Stream:CaptionStream$1.Cea608Stream,Cea708Stream:CaptionStream$1.Cea708Stream,MetadataStream:metadataStream};for(var type in StreamTypes$2)StreamTypes$2.hasOwnProperty(type)&&(m2ts$1[type]=StreamTypes$2[type]);var AdtsStream$1,m2ts_1=m2ts$1,ONE_SECOND_IN_TS$2=clock$2.ONE_SECOND_IN_TS,ADTS_SAMPLING_FREQUENCIES$1=[96e3,88200,64e3,48e3,44100,32e3,24e3,22050,16e3,12e3,11025,8e3,7350];(AdtsStream$1=function(handlePartialSegments){var buffer,frameNum=0;AdtsStream$1.prototype.init.call(this),this.skipWarn_=function(start,end){this.trigger("log",{level:"warn",message:"adts skiping bytes ".concat(start," to ").concat(end," in frame ").concat(frameNum," outside syncword")})},this.push=function(packet){var frameLength,protectionSkipBytes,oldBuffer,sampleCount,adtsFrameDuration,i=0;if(handlePartialSegments||(frameNum=0),"audio"===packet.type){var skip;for(buffer&&buffer.length?(oldBuffer=buffer,(buffer=new Uint8Array(oldBuffer.byteLength+packet.data.byteLength)).set(oldBuffer),buffer.set(packet.data,oldBuffer.byteLength)):buffer=packet.data;i+7<buffer.length;)if(255===buffer[i]&&240==(246&buffer[i+1])){if("number"==typeof skip&&(this.skipWarn_(skip,i),skip=null),protectionSkipBytes=2*(1&~buffer[i+1]),frameLength=(3&buffer[i+3])<<11|buffer[i+4]<<3|(224&buffer[i+5])>>5,adtsFrameDuration=(sampleCount=1024*(1+(3&buffer[i+6])))*ONE_SECOND_IN_TS$2/ADTS_SAMPLING_FREQUENCIES$1[(60&buffer[i+2])>>>2],buffer.byteLength-i<frameLength)break;this.trigger("data",{pts:packet.pts+frameNum*adtsFrameDuration,dts:packet.dts+frameNum*adtsFrameDuration,sampleCount:sampleCount,audioobjecttype:1+(buffer[i+2]>>>6&3),channelcount:(1&buffer[i+2])<<2|(192&buffer[i+3])>>>6,samplerate:ADTS_SAMPLING_FREQUENCIES$1[(60&buffer[i+2])>>>2],samplingfrequencyindex:(60&buffer[i+2])>>>2,samplesize:16,data:buffer.subarray(i+7+protectionSkipBytes,i+frameLength)}),frameNum++,i+=frameLength}else"number"!=typeof skip&&(skip=i),i++;"number"==typeof skip&&(this.skipWarn_(skip,i),skip=null),buffer=buffer.subarray(i)}},this.flush=function(){frameNum=0,this.trigger("done")},this.reset=function(){buffer=void 0,this.trigger("reset")},this.endTimeline=function(){buffer=void 0,this.trigger("endedtimeline")}}).prototype=new stream;var ExpGolomb$1,adts=AdtsStream$1;ExpGolomb$1=function(workingData){var workingBytesAvailable=workingData.byteLength,workingWord=0,workingBitsAvailable=0;this.length=function(){return 8*workingBytesAvailable},this.bitsAvailable=function(){return 8*workingBytesAvailable+workingBitsAvailable},this.loadWord=function(){var position=workingData.byteLength-workingBytesAvailable,workingBytes=new Uint8Array(4),availableBytes=Math.min(4,workingBytesAvailable);if(0===availableBytes)throw new Error("no bytes available");workingBytes.set(workingData.subarray(position,position+availableBytes)),workingWord=new DataView(workingBytes.buffer).getUint32(0),workingBitsAvailable=8*availableBytes,workingBytesAvailable-=availableBytes},this.skipBits=function(count){var skipBytes;workingBitsAvailable>count?(workingWord<<=count,workingBitsAvailable-=count):(count-=workingBitsAvailable,count-=8*(skipBytes=Math.floor(count/8)),workingBytesAvailable-=skipBytes,this.loadWord(),workingWord<<=count,workingBitsAvailable-=count)},this.readBits=function(size){var bits=Math.min(workingBitsAvailable,size),valu=workingWord>>>32-bits;return(workingBitsAvailable-=bits)>0?workingWord<<=bits:workingBytesAvailable>0&&this.loadWord(),(bits=size-bits)>0?valu<<bits|this.readBits(bits):valu},this.skipLeadingZeros=function(){var leadingZeroCount;for(leadingZeroCount=0;leadingZeroCount<workingBitsAvailable;++leadingZeroCount)if(0!=(workingWord&2147483648>>>leadingZeroCount))return workingWord<<=leadingZeroCount,workingBitsAvailable-=leadingZeroCount,leadingZeroCount;return this.loadWord(),leadingZeroCount+this.skipLeadingZeros()},this.skipUnsignedExpGolomb=function(){this.skipBits(1+this.skipLeadingZeros())},this.skipExpGolomb=function(){this.skipBits(1+this.skipLeadingZeros())},this.readUnsignedExpGolomb=function(){var clz=this.skipLeadingZeros();return this.readBits(clz+1)-1},this.readExpGolomb=function(){var valu=this.readUnsignedExpGolomb();return 1&valu?1+valu>>>1:-1*(valu>>>1)},this.readBoolean=function(){return 1===this.readBits(1)},this.readUnsignedByte=function(){return this.readBits(8)},this.loadWord()};var H264Stream$1,NalByteStream,PROFILES_WITH_OPTIONAL_SPS_DATA,Stream$2=stream,ExpGolomb=ExpGolomb$1;(NalByteStream=function(){var i,buffer,syncPoint=0;NalByteStream.prototype.init.call(this),this.push=function(data){var swapBuffer;buffer?((swapBuffer=new Uint8Array(buffer.byteLength+data.data.byteLength)).set(buffer),swapBuffer.set(data.data,buffer.byteLength),buffer=swapBuffer):buffer=data.data;for(var len=buffer.byteLength;syncPoint<len-3;syncPoint++)if(1===buffer[syncPoint+2]){i=syncPoint+5;break}for(;i<len;)switch(buffer[i]){case 0:if(0!==buffer[i-1]){i+=2;break}if(0!==buffer[i-2]){i++;break}syncPoint+3!==i-2&&this.trigger("data",buffer.subarray(syncPoint+3,i-2));do{i++}while(1!==buffer[i]&&i<len);syncPoint=i-2,i+=3;break;case 1:if(0!==buffer[i-1]||0!==buffer[i-2]){i+=3;break}this.trigger("data",buffer.subarray(syncPoint+3,i-2)),syncPoint=i-2,i+=3;break;default:i+=3}buffer=buffer.subarray(syncPoint),i-=syncPoint,syncPoint=0},this.reset=function(){buffer=null,syncPoint=0,this.trigger("reset")},this.flush=function(){buffer&&buffer.byteLength>3&&this.trigger("data",buffer.subarray(syncPoint+3)),buffer=null,syncPoint=0,this.trigger("done")},this.endTimeline=function(){this.flush(),this.trigger("endedtimeline")}}).prototype=new Stream$2,PROFILES_WITH_OPTIONAL_SPS_DATA={100:!0,110:!0,122:!0,244:!0,44:!0,83:!0,86:!0,118:!0,128:!0,138:!0,139:!0,134:!0},H264Stream$1=function(){var self,trackId,currentPts,currentDts,discardEmulationPreventionBytes,readSequenceParameterSet,skipScalingList,nalByteStream=new NalByteStream;H264Stream$1.prototype.init.call(this),self=this,this.push=function(packet){"video"===packet.type&&(trackId=packet.trackId,currentPts=packet.pts,currentDts=packet.dts,nalByteStream.push(packet))},nalByteStream.on("data",(function(data){var event={trackId:trackId,pts:currentPts,dts:currentDts,data:data,nalUnitTypeCode:31&data[0]};switch(event.nalUnitTypeCode){case 5:event.nalUnitType="slice_layer_without_partitioning_rbsp_idr";break;case 6:event.nalUnitType="sei_rbsp",event.escapedRBSP=discardEmulationPreventionBytes(data.subarray(1));break;case 7:event.nalUnitType="seq_parameter_set_rbsp",event.escapedRBSP=discardEmulationPreventionBytes(data.subarray(1)),event.config=readSequenceParameterSet(event.escapedRBSP);break;case 8:event.nalUnitType="pic_parameter_set_rbsp";break;case 9:event.nalUnitType="access_unit_delimiter_rbsp"}self.trigger("data",event)})),nalByteStream.on("done",(function(){self.trigger("done")})),nalByteStream.on("partialdone",(function(){self.trigger("partialdone")})),nalByteStream.on("reset",(function(){self.trigger("reset")})),nalByteStream.on("endedtimeline",(function(){self.trigger("endedtimeline")})),this.flush=function(){nalByteStream.flush()},this.partialFlush=function(){nalByteStream.partialFlush()},this.reset=function(){nalByteStream.reset()},this.endTimeline=function(){nalByteStream.endTimeline()},skipScalingList=function(count,expGolombDecoder){var j,lastScale=8,nextScale=8;for(j=0;j<count;j++)0!==nextScale&&(nextScale=(lastScale+expGolombDecoder.readExpGolomb()+256)%256),lastScale=0===nextScale?lastScale:nextScale},discardEmulationPreventionBytes=function(data){for(var newLength,newData,length=data.byteLength,emulationPreventionBytesPositions=[],i=1;i<length-2;)0===data[i]&&0===data[i+1]&&3===data[i+2]?(emulationPreventionBytesPositions.push(i+2),i+=2):i++;if(0===emulationPreventionBytesPositions.length)return data;newLength=length-emulationPreventionBytesPositions.length,newData=new Uint8Array(newLength);var sourceIndex=0;for(i=0;i<newLength;sourceIndex++,i++)sourceIndex===emulationPreventionBytesPositions[0]&&(sourceIndex++,emulationPreventionBytesPositions.shift()),newData[i]=data[sourceIndex];return newData},readSequenceParameterSet=function(data){var expGolombDecoder,profileIdc,levelIdc,profileCompatibility,chromaFormatIdc,picOrderCntType,numRefFramesInPicOrderCntCycle,picWidthInMbsMinus1,picHeightInMapUnitsMinus1,frameMbsOnlyFlag,scalingListCount,i,frameCropLeftOffset=0,frameCropRightOffset=0,frameCropTopOffset=0,frameCropBottomOffset=0,sarRatio=[1,1];if(profileIdc=(expGolombDecoder=new ExpGolomb(data)).readUnsignedByte(),profileCompatibility=expGolombDecoder.readUnsignedByte(),levelIdc=expGolombDecoder.readUnsignedByte(),expGolombDecoder.skipUnsignedExpGolomb(),PROFILES_WITH_OPTIONAL_SPS_DATA[profileIdc]&&(3===(chromaFormatIdc=expGolombDecoder.readUnsignedExpGolomb())&&expGolombDecoder.skipBits(1),expGolombDecoder.skipUnsignedExpGolomb(),expGolombDecoder.skipUnsignedExpGolomb(),expGolombDecoder.skipBits(1),expGolombDecoder.readBoolean()))for(scalingListCount=3!==chromaFormatIdc?8:12,i=0;i<scalingListCount;i++)expGolombDecoder.readBoolean()&&skipScalingList(i<6?16:64,expGolombDecoder);if(expGolombDecoder.skipUnsignedExpGolomb(),0===(picOrderCntType=expGolombDecoder.readUnsignedExpGolomb()))expGolombDecoder.readUnsignedExpGolomb();else if(1===picOrderCntType)for(expGolombDecoder.skipBits(1),expGolombDecoder.skipExpGolomb(),expGolombDecoder.skipExpGolomb(),numRefFramesInPicOrderCntCycle=expGolombDecoder.readUnsignedExpGolomb(),i=0;i<numRefFramesInPicOrderCntCycle;i++)expGolombDecoder.skipExpGolomb();if(expGolombDecoder.skipUnsignedExpGolomb(),expGolombDecoder.skipBits(1),picWidthInMbsMinus1=expGolombDecoder.readUnsignedExpGolomb(),picHeightInMapUnitsMinus1=expGolombDecoder.readUnsignedExpGolomb(),0===(frameMbsOnlyFlag=expGolombDecoder.readBits(1))&&expGolombDecoder.skipBits(1),expGolombDecoder.skipBits(1),expGolombDecoder.readBoolean()&&(frameCropLeftOffset=expGolombDecoder.readUnsignedExpGolomb(),frameCropRightOffset=expGolombDecoder.readUnsignedExpGolomb(),frameCropTopOffset=expGolombDecoder.readUnsignedExpGolomb(),frameCropBottomOffset=expGolombDecoder.readUnsignedExpGolomb()),expGolombDecoder.readBoolean()&&expGolombDecoder.readBoolean()){switch(expGolombDecoder.readUnsignedByte()){case 1:sarRatio=[1,1];break;case 2:sarRatio=[12,11];break;case 3:sarRatio=[10,11];break;case 4:sarRatio=[16,11];break;case 5:sarRatio=[40,33];break;case 6:sarRatio=[24,11];break;case 7:sarRatio=[20,11];break;case 8:sarRatio=[32,11];break;case 9:sarRatio=[80,33];break;case 10:sarRatio=[18,11];break;case 11:sarRatio=[15,11];break;case 12:sarRatio=[64,33];break;case 13:sarRatio=[160,99];break;case 14:sarRatio=[4,3];break;case 15:sarRatio=[3,2];break;case 16:sarRatio=[2,1];break;case 255:sarRatio=[expGolombDecoder.readUnsignedByte()<<8|expGolombDecoder.readUnsignedByte(),expGolombDecoder.readUnsignedByte()<<8|expGolombDecoder.readUnsignedByte()]}sarRatio&&(sarRatio[0],sarRatio[1])}return{profileIdc:profileIdc,levelIdc:levelIdc,profileCompatibility:profileCompatibility,width:16*(picWidthInMbsMinus1+1)-2*frameCropLeftOffset-2*frameCropRightOffset,height:(2-frameMbsOnlyFlag)*(picHeightInMapUnitsMinus1+1)*16-2*frameCropTopOffset-2*frameCropBottomOffset,sarRatio:sarRatio}}},H264Stream$1.prototype=new Stream$2;var AacStream$1,h264={H264Stream:H264Stream$1,NalByteStream:NalByteStream},ADTS_SAMPLING_FREQUENCIES=[96e3,88200,64e3,48e3,44100,32e3,24e3,22050,16e3,12e3,11025,8e3,7350],parseId3TagSize=function(header,byteIndex){var returnSize=header[byteIndex+6]<<21|header[byteIndex+7]<<14|header[byteIndex+8]<<7|header[byteIndex+9];return returnSize=returnSize>=0?returnSize:0,(16&header[byteIndex+5])>>4?returnSize+20:returnSize+10},getId3Offset=function(data,offset){return data.length-offset<10||data[offset]!=="I".charCodeAt(0)||data[offset+1]!=="D".charCodeAt(0)||data[offset+2]!=="3".charCodeAt(0)?offset:(offset+=parseId3TagSize(data,offset),getId3Offset(data,offset))},parseSyncSafeInteger=function(data){return data[0]<<21|data[1]<<14|data[2]<<7|data[3]},utils={isLikelyAacData:function(data){var offset=getId3Offset(data,0);return data.length>=offset+2&&255==(255&data[offset])&&240==(240&data[offset+1])&&16==(22&data[offset+1])},parseId3TagSize:parseId3TagSize,parseAdtsSize:function(header,byteIndex){var lowThree=(224&header[byteIndex+5])>>5,middle=header[byteIndex+4]<<3;return 6144&header[byteIndex+3]|middle|lowThree},parseType:function(header,byteIndex){return header[byteIndex]==="I".charCodeAt(0)&&header[byteIndex+1]==="D".charCodeAt(0)&&header[byteIndex+2]==="3".charCodeAt(0)?"timed-metadata":!0&header[byteIndex]&&240==(240&header[byteIndex+1])?"audio":null},parseSampleRate:function(packet){for(var i=0;i+5<packet.length;){if(255===packet[i]&&240==(246&packet[i+1]))return ADTS_SAMPLING_FREQUENCIES[(60&packet[i+2])>>>2];i++}return null},parseAacTimestamp:function(packet){var frameStart,frameSize,frame;frameStart=10,64&packet[5]&&(frameStart+=4,frameStart+=parseSyncSafeInteger(packet.subarray(10,14)));do{if((frameSize=parseSyncSafeInteger(packet.subarray(frameStart+4,frameStart+8)))<1)return null;if("PRIV"===String.fromCharCode(packet[frameStart],packet[frameStart+1],packet[frameStart+2],packet[frameStart+3])){frame=packet.subarray(frameStart+10,frameStart+frameSize+10);for(var i=0;i<frame.byteLength;i++)if(0===frame[i]){var owner=unescape(function(bytes,start,end){var i,result="";for(i=start;i<end;i++)result+="%"+("00"+bytes[i].toString(16)).slice(-2);return result}(frame,0,i));if("com.apple.streaming.transportStreamTimestamp"===owner){var d=frame.subarray(i+1),size=(1&d[3])<<30|d[4]<<22|d[5]<<14|d[6]<<6|d[7]>>>2;return size*=4,size+=3&d[7]}break}}frameStart+=10,frameStart+=frameSize}while(frameStart<packet.byteLength);return null}},aacUtils=utils;(AacStream$1=function(){var everything=new Uint8Array,timeStamp=0;AacStream$1.prototype.init.call(this),this.setTimestamp=function(timestamp){timeStamp=timestamp},this.push=function(bytes){var bytesLeft,chunk,packet,tempLength,frameSize=0,byteIndex=0;for(everything.length?(tempLength=everything.length,(everything=new Uint8Array(bytes.byteLength+tempLength)).set(everything.subarray(0,tempLength)),everything.set(bytes,tempLength)):everything=bytes;everything.length-byteIndex>=3;)if(everything[byteIndex]!=="I".charCodeAt(0)||everything[byteIndex+1]!=="D".charCodeAt(0)||everything[byteIndex+2]!=="3".charCodeAt(0))if(255!=(255&everything[byteIndex])||240!=(240&everything[byteIndex+1]))byteIndex++;else{if(everything.length-byteIndex<7)break;if(byteIndex+(frameSize=aacUtils.parseAdtsSize(everything,byteIndex))>everything.length)break;packet={type:"audio",data:everything.subarray(byteIndex,byteIndex+frameSize),pts:timeStamp,dts:timeStamp},this.trigger("data",packet),byteIndex+=frameSize}else{if(everything.length-byteIndex<10)break;if(byteIndex+(frameSize=aacUtils.parseId3TagSize(everything,byteIndex))>everything.length)break;chunk={type:"timed-metadata",data:everything.subarray(byteIndex,byteIndex+frameSize)},this.trigger("data",chunk),byteIndex+=frameSize}bytesLeft=everything.length-byteIndex,everything=bytesLeft>0?everything.subarray(byteIndex):new Uint8Array},this.reset=function(){everything=new Uint8Array,this.trigger("reset")},this.endTimeline=function(){everything=new Uint8Array,this.trigger("endedtimeline")}}).prototype=new stream;var VideoSegmentStream,AudioSegmentStream,Transmuxer,CoalesceStream,Stream=stream,mp4=mp4Generator,frameUtils=frameUtils$1,audioFrameUtils=audioFrameUtils$1,trackDecodeInfo=trackDecodeInfo$1,m2ts=m2ts_1,clock=clock$2,AdtsStream=adts,H264Stream=h264.H264Stream,AacStream=AacStream$1,isLikelyAacData=utils.isLikelyAacData,ONE_SECOND_IN_TS$1=clock$2.ONE_SECOND_IN_TS,AUDIO_PROPERTIES=["audioobjecttype","channelcount","samplerate","samplingfrequencyindex","samplesize"],VIDEO_PROPERTIES=["width","height","profileIdc","levelIdc","profileCompatibility","sarRatio"],retriggerForStream=function(key,event){event.stream=key,this.trigger("log",event)},addPipelineLogRetriggers=function(transmuxer,pipeline){for(var keys=Object.keys(pipeline),i=0;i<keys.length;i++){var key=keys[i];"headOfPipeline"!==key&&pipeline[key].on&&pipeline[key].on("log",retriggerForStream.bind(transmuxer,key))}},arrayEquals=function(a,b){var i;if(a.length!==b.length)return!1;for(i=0;i<a.length;i++)if(a[i]!==b[i])return!1;return!0},generateSegmentTimingInfo=function(baseMediaDecodeTime,startDts,startPts,endDts,endPts,prependedContentDuration){return{start:{dts:baseMediaDecodeTime,pts:baseMediaDecodeTime+(startPts-startDts)},end:{dts:baseMediaDecodeTime+(endDts-startDts),pts:baseMediaDecodeTime+(endPts-startPts)},prependedContentDuration:prependedContentDuration,baseMediaDecodeTime:baseMediaDecodeTime}};AudioSegmentStream=function(track,options){var sequenceNumber,adtsFrames=[],earliestAllowedDts=0,audioAppendStartTs=0,videoBaseMediaDecodeTime=1/0;sequenceNumber=(options=options||{}).firstSequenceNumber||0,AudioSegmentStream.prototype.init.call(this),this.push=function(data){trackDecodeInfo.collectDtsInfo(track,data),track&&AUDIO_PROPERTIES.forEach((function(prop){track[prop]=data[prop]})),adtsFrames.push(data)},this.setEarliestDts=function(earliestDts){earliestAllowedDts=earliestDts},this.setVideoBaseMediaDecodeTime=function(baseMediaDecodeTime){videoBaseMediaDecodeTime=baseMediaDecodeTime},this.setAudioAppendStart=function(timestamp){audioAppendStartTs=timestamp},this.flush=function(){var frames,moof,mdat,boxes,frameDuration,segmentDuration,videoClockCyclesOfSilencePrefixed;0!==adtsFrames.length?(frames=audioFrameUtils.trimAdtsFramesByEarliestDts(adtsFrames,track,earliestAllowedDts),track.baseMediaDecodeTime=trackDecodeInfo.calculateTrackBaseMediaDecodeTime(track,options.keepOriginalTimestamps),videoClockCyclesOfSilencePrefixed=audioFrameUtils.prefixWithSilence(track,frames,audioAppendStartTs,videoBaseMediaDecodeTime),track.samples=audioFrameUtils.generateSampleTable(frames),mdat=mp4.mdat(audioFrameUtils.concatenateFrameData(frames)),adtsFrames=[],moof=mp4.moof(sequenceNumber,[track]),boxes=new Uint8Array(moof.byteLength+mdat.byteLength),sequenceNumber++,boxes.set(moof),boxes.set(mdat,moof.byteLength),trackDecodeInfo.clearDtsInfo(track),frameDuration=Math.ceil(1024*ONE_SECOND_IN_TS$1/track.samplerate),frames.length&&(segmentDuration=frames.length*frameDuration,this.trigger("segmentTimingInfo",generateSegmentTimingInfo(clock.audioTsToVideoTs(track.baseMediaDecodeTime,track.samplerate),frames[0].dts,frames[0].pts,frames[0].dts+segmentDuration,frames[0].pts+segmentDuration,videoClockCyclesOfSilencePrefixed||0)),this.trigger("timingInfo",{start:frames[0].pts,end:frames[0].pts+segmentDuration})),this.trigger("data",{track:track,boxes:boxes}),this.trigger("done","AudioSegmentStream")):this.trigger("done","AudioSegmentStream")},this.reset=function(){trackDecodeInfo.clearDtsInfo(track),adtsFrames=[],this.trigger("reset")}},AudioSegmentStream.prototype=new Stream,VideoSegmentStream=function(track,options){var sequenceNumber,config,pps,nalUnits=[],gopsToAlignWith=[];sequenceNumber=(options=options||{}).firstSequenceNumber||0,VideoSegmentStream.prototype.init.call(this),delete track.minPTS,this.gopCache_=[],this.push=function(nalUnit){trackDecodeInfo.collectDtsInfo(track,nalUnit),"seq_parameter_set_rbsp"!==nalUnit.nalUnitType||config||(config=nalUnit.config,track.sps=[nalUnit.data],VIDEO_PROPERTIES.forEach((function(prop){track[prop]=config[prop]}),this)),"pic_parameter_set_rbsp"!==nalUnit.nalUnitType||pps||(pps=nalUnit.data,track.pps=[nalUnit.data]),nalUnits.push(nalUnit)},this.flush=function(){for(var frames,gopForFusion,gops,moof,mdat,boxes,firstGop,lastGop,prependedContentDuration=0;nalUnits.length&&"access_unit_delimiter_rbsp"!==nalUnits[0].nalUnitType;)nalUnits.shift();if(0===nalUnits.length)return this.resetStream_(),void this.trigger("done","VideoSegmentStream");if(frames=frameUtils.groupNalsIntoFrames(nalUnits),(gops=frameUtils.groupFramesIntoGops(frames))[0][0].keyFrame||((gopForFusion=this.getGopForFusion_(nalUnits[0],track))?(prependedContentDuration=gopForFusion.duration,gops.unshift(gopForFusion),gops.byteLength+=gopForFusion.byteLength,gops.nalCount+=gopForFusion.nalCount,gops.pts=gopForFusion.pts,gops.dts=gopForFusion.dts,gops.duration+=gopForFusion.duration):gops=frameUtils.extendFirstKeyFrame(gops)),gopsToAlignWith.length){var alignedGops;if(!(alignedGops=options.alignGopsAtEnd?this.alignGopsAtEnd_(gops):this.alignGopsAtStart_(gops)))return this.gopCache_.unshift({gop:gops.pop(),pps:track.pps,sps:track.sps}),this.gopCache_.length=Math.min(6,this.gopCache_.length),nalUnits=[],this.resetStream_(),void this.trigger("done","VideoSegmentStream");trackDecodeInfo.clearDtsInfo(track),gops=alignedGops}trackDecodeInfo.collectDtsInfo(track,gops),track.samples=frameUtils.generateSampleTable(gops),mdat=mp4.mdat(frameUtils.concatenateNalData(gops)),track.baseMediaDecodeTime=trackDecodeInfo.calculateTrackBaseMediaDecodeTime(track,options.keepOriginalTimestamps),this.trigger("processedGopsInfo",gops.map((function(gop){return{pts:gop.pts,dts:gop.dts,byteLength:gop.byteLength}}))),firstGop=gops[0],lastGop=gops[gops.length-1],this.trigger("segmentTimingInfo",generateSegmentTimingInfo(track.baseMediaDecodeTime,firstGop.dts,firstGop.pts,lastGop.dts+lastGop.duration,lastGop.pts+lastGop.duration,prependedContentDuration)),this.trigger("timingInfo",{start:gops[0].pts,end:gops[gops.length-1].pts+gops[gops.length-1].duration}),this.gopCache_.unshift({gop:gops.pop(),pps:track.pps,sps:track.sps}),this.gopCache_.length=Math.min(6,this.gopCache_.length),nalUnits=[],this.trigger("baseMediaDecodeTime",track.baseMediaDecodeTime),this.trigger("timelineStartInfo",track.timelineStartInfo),moof=mp4.moof(sequenceNumber,[track]),boxes=new Uint8Array(moof.byteLength+mdat.byteLength),sequenceNumber++,boxes.set(moof),boxes.set(mdat,moof.byteLength),this.trigger("data",{track:track,boxes:boxes}),this.resetStream_(),this.trigger("done","VideoSegmentStream")},this.reset=function(){this.resetStream_(),nalUnits=[],this.gopCache_.length=0,gopsToAlignWith.length=0,this.trigger("reset")},this.resetStream_=function(){trackDecodeInfo.clearDtsInfo(track),config=void 0,pps=void 0},this.getGopForFusion_=function(nalUnit){var dtsDistance,nearestGopObj,currentGop,currentGopObj,i,nearestDistance=1/0;for(i=0;i<this.gopCache_.length;i++)currentGop=(currentGopObj=this.gopCache_[i]).gop,track.pps&&arrayEquals(track.pps[0],currentGopObj.pps[0])&&track.sps&&arrayEquals(track.sps[0],currentGopObj.sps[0])&&(currentGop.dts<track.timelineStartInfo.dts||(dtsDistance=nalUnit.dts-currentGop.dts-currentGop.duration)>=-1e4&&dtsDistance<=45e3&&(!nearestGopObj||nearestDistance>dtsDistance)&&(nearestGopObj=currentGopObj,nearestDistance=dtsDistance));return nearestGopObj?nearestGopObj.gop:null},this.alignGopsAtStart_=function(gops){var alignIndex,gopIndex,align,gop,byteLength,nalCount,duration,alignedGops;for(byteLength=gops.byteLength,nalCount=gops.nalCount,duration=gops.duration,alignIndex=gopIndex=0;alignIndex<gopsToAlignWith.length&&gopIndex<gops.length&&(align=gopsToAlignWith[alignIndex],gop=gops[gopIndex],align.pts!==gop.pts);)gop.pts>align.pts?alignIndex++:(gopIndex++,byteLength-=gop.byteLength,nalCount-=gop.nalCount,duration-=gop.duration);return 0===gopIndex?gops:gopIndex===gops.length?null:((alignedGops=gops.slice(gopIndex)).byteLength=byteLength,alignedGops.duration=duration,alignedGops.nalCount=nalCount,alignedGops.pts=alignedGops[0].pts,alignedGops.dts=alignedGops[0].dts,alignedGops)},this.alignGopsAtEnd_=function(gops){var alignIndex,gopIndex,align,gop,alignEndIndex,matchFound,trimIndex;for(alignIndex=gopsToAlignWith.length-1,gopIndex=gops.length-1,alignEndIndex=null,matchFound=!1;alignIndex>=0&&gopIndex>=0;){if(align=gopsToAlignWith[alignIndex],gop=gops[gopIndex],align.pts===gop.pts){matchFound=!0;break}align.pts>gop.pts?alignIndex--:(alignIndex===gopsToAlignWith.length-1&&(alignEndIndex=gopIndex),gopIndex--)}if(!matchFound&&null===alignEndIndex)return null;if(0===(trimIndex=matchFound?gopIndex:alignEndIndex))return gops;var alignedGops=gops.slice(trimIndex),metadata=alignedGops.reduce((function(total,gop){return total.byteLength+=gop.byteLength,total.duration+=gop.duration,total.nalCount+=gop.nalCount,total}),{byteLength:0,duration:0,nalCount:0});return alignedGops.byteLength=metadata.byteLength,alignedGops.duration=metadata.duration,alignedGops.nalCount=metadata.nalCount,alignedGops.pts=alignedGops[0].pts,alignedGops.dts=alignedGops[0].dts,alignedGops},this.alignGopsWith=function(newGopsToAlignWith){gopsToAlignWith=newGopsToAlignWith}},VideoSegmentStream.prototype=new Stream,CoalesceStream=function(options,metadataStream){this.numberOfTracks=0,this.metadataStream=metadataStream,void 0!==(options=options||{}).remux?this.remuxTracks=!!options.remux:this.remuxTracks=!0,"boolean"==typeof options.keepOriginalTimestamps?this.keepOriginalTimestamps=options.keepOriginalTimestamps:this.keepOriginalTimestamps=!1,this.pendingTracks=[],this.videoTrack=null,this.pendingBoxes=[],this.pendingCaptions=[],this.pendingMetadata=[],this.pendingBytes=0,this.emittedTracks=0,CoalesceStream.prototype.init.call(this),this.push=function(output){return output.text?this.pendingCaptions.push(output):output.frames?this.pendingMetadata.push(output):(this.pendingTracks.push(output.track),this.pendingBytes+=output.boxes.byteLength,"video"===output.track.type&&(this.videoTrack=output.track,this.pendingBoxes.push(output.boxes)),void("audio"===output.track.type&&(this.audioTrack=output.track,this.pendingBoxes.unshift(output.boxes))))}},CoalesceStream.prototype=new Stream,CoalesceStream.prototype.flush=function(flushSource){var caption,id3,initSegment,i,offset=0,event={captions:[],captionStreams:{},metadata:[],info:{}},timelineStartPts=0;if(this.pendingTracks.length<this.numberOfTracks){if("VideoSegmentStream"!==flushSource&&"AudioSegmentStream"!==flushSource)return;if(this.remuxTracks)return;if(0===this.pendingTracks.length)return this.emittedTracks++,void(this.emittedTracks>=this.numberOfTracks&&(this.trigger("done"),this.emittedTracks=0))}if(this.videoTrack?(timelineStartPts=this.videoTrack.timelineStartInfo.pts,VIDEO_PROPERTIES.forEach((function(prop){event.info[prop]=this.videoTrack[prop]}),this)):this.audioTrack&&(timelineStartPts=this.audioTrack.timelineStartInfo.pts,AUDIO_PROPERTIES.forEach((function(prop){event.info[prop]=this.audioTrack[prop]}),this)),this.videoTrack||this.audioTrack){for(1===this.pendingTracks.length?event.type=this.pendingTracks[0].type:event.type="combined",this.emittedTracks+=this.pendingTracks.length,initSegment=mp4.initSegment(this.pendingTracks),event.initSegment=new Uint8Array(initSegment.byteLength),event.initSegment.set(initSegment),event.data=new Uint8Array(this.pendingBytes),i=0;i<this.pendingBoxes.length;i++)event.data.set(this.pendingBoxes[i],offset),offset+=this.pendingBoxes[i].byteLength;for(i=0;i<this.pendingCaptions.length;i++)(caption=this.pendingCaptions[i]).startTime=clock.metadataTsToSeconds(caption.startPts,timelineStartPts,this.keepOriginalTimestamps),caption.endTime=clock.metadataTsToSeconds(caption.endPts,timelineStartPts,this.keepOriginalTimestamps),event.captionStreams[caption.stream]=!0,event.captions.push(caption);for(i=0;i<this.pendingMetadata.length;i++)(id3=this.pendingMetadata[i]).cueTime=clock.metadataTsToSeconds(id3.pts,timelineStartPts,this.keepOriginalTimestamps),event.metadata.push(id3);for(event.metadata.dispatchType=this.metadataStream.dispatchType,this.pendingTracks.length=0,this.videoTrack=null,this.pendingBoxes.length=0,this.pendingCaptions.length=0,this.pendingBytes=0,this.pendingMetadata.length=0,this.trigger("data",event),i=0;i<event.captions.length;i++)caption=event.captions[i],this.trigger("caption",caption);for(i=0;i<event.metadata.length;i++)id3=event.metadata[i],this.trigger("id3Frame",id3)}this.emittedTracks>=this.numberOfTracks&&(this.trigger("done"),this.emittedTracks=0)},CoalesceStream.prototype.setRemux=function(val){this.remuxTracks=val},(Transmuxer=function(options){var videoTrack,audioTrack,self=this,hasFlushed=!0;Transmuxer.prototype.init.call(this),options=options||{},this.baseMediaDecodeTime=options.baseMediaDecodeTime||0,this.transmuxPipeline_={},this.setupAacPipeline=function(){var pipeline={};this.transmuxPipeline_=pipeline,pipeline.type="aac",pipeline.metadataStream=new m2ts.MetadataStream,pipeline.aacStream=new AacStream,pipeline.audioTimestampRolloverStream=new m2ts.TimestampRolloverStream("audio"),pipeline.timedMetadataTimestampRolloverStream=new m2ts.TimestampRolloverStream("timed-metadata"),pipeline.adtsStream=new AdtsStream,pipeline.coalesceStream=new CoalesceStream(options,pipeline.metadataStream),pipeline.headOfPipeline=pipeline.aacStream,pipeline.aacStream.pipe(pipeline.audioTimestampRolloverStream).pipe(pipeline.adtsStream),pipeline.aacStream.pipe(pipeline.timedMetadataTimestampRolloverStream).pipe(pipeline.metadataStream).pipe(pipeline.coalesceStream),pipeline.metadataStream.on("timestamp",(function(frame){pipeline.aacStream.setTimestamp(frame.timeStamp)})),pipeline.aacStream.on("data",(function(data){"timed-metadata"!==data.type&&"audio"!==data.type||pipeline.audioSegmentStream||(audioTrack=audioTrack||{timelineStartInfo:{baseMediaDecodeTime:self.baseMediaDecodeTime},codec:"adts",type:"audio"},pipeline.coalesceStream.numberOfTracks++,pipeline.audioSegmentStream=new AudioSegmentStream(audioTrack,options),pipeline.audioSegmentStream.on("log",self.getLogTrigger_("audioSegmentStream")),pipeline.audioSegmentStream.on("timingInfo",self.trigger.bind(self,"audioTimingInfo")),pipeline.adtsStream.pipe(pipeline.audioSegmentStream).pipe(pipeline.coalesceStream),self.trigger("trackinfo",{hasAudio:!!audioTrack,hasVideo:!!videoTrack}))})),pipeline.coalesceStream.on("data",this.trigger.bind(this,"data")),pipeline.coalesceStream.on("done",this.trigger.bind(this,"done")),addPipelineLogRetriggers(this,pipeline)},this.setupTsPipeline=function(){var pipeline={};this.transmuxPipeline_=pipeline,pipeline.type="ts",pipeline.metadataStream=new m2ts.MetadataStream,pipeline.packetStream=new m2ts.TransportPacketStream,pipeline.parseStream=new m2ts.TransportParseStream,pipeline.elementaryStream=new m2ts.ElementaryStream,pipeline.timestampRolloverStream=new m2ts.TimestampRolloverStream,pipeline.adtsStream=new AdtsStream,pipeline.h264Stream=new H264Stream,pipeline.captionStream=new m2ts.CaptionStream(options),pipeline.coalesceStream=new CoalesceStream(options,pipeline.metadataStream),pipeline.headOfPipeline=pipeline.packetStream,pipeline.packetStream.pipe(pipeline.parseStream).pipe(pipeline.elementaryStream).pipe(pipeline.timestampRolloverStream),pipeline.timestampRolloverStream.pipe(pipeline.h264Stream),pipeline.timestampRolloverStream.pipe(pipeline.adtsStream),pipeline.timestampRolloverStream.pipe(pipeline.metadataStream).pipe(pipeline.coalesceStream),pipeline.h264Stream.pipe(pipeline.captionStream).pipe(pipeline.coalesceStream),pipeline.elementaryStream.on("data",(function(data){var i;if("metadata"===data.type){for(i=data.tracks.length;i--;)videoTrack||"video"!==data.tracks[i].type?audioTrack||"audio"!==data.tracks[i].type||((audioTrack=data.tracks[i]).timelineStartInfo.baseMediaDecodeTime=self.baseMediaDecodeTime):(videoTrack=data.tracks[i]).timelineStartInfo.baseMediaDecodeTime=self.baseMediaDecodeTime;videoTrack&&!pipeline.videoSegmentStream&&(pipeline.coalesceStream.numberOfTracks++,pipeline.videoSegmentStream=new VideoSegmentStream(videoTrack,options),pipeline.videoSegmentStream.on("log",self.getLogTrigger_("videoSegmentStream")),pipeline.videoSegmentStream.on("timelineStartInfo",(function(timelineStartInfo){audioTrack&&!options.keepOriginalTimestamps&&(audioTrack.timelineStartInfo=timelineStartInfo,pipeline.audioSegmentStream.setEarliestDts(timelineStartInfo.dts-self.baseMediaDecodeTime))})),pipeline.videoSegmentStream.on("processedGopsInfo",self.trigger.bind(self,"gopInfo")),pipeline.videoSegmentStream.on("segmentTimingInfo",self.trigger.bind(self,"videoSegmentTimingInfo")),pipeline.videoSegmentStream.on("baseMediaDecodeTime",(function(baseMediaDecodeTime){audioTrack&&pipeline.audioSegmentStream.setVideoBaseMediaDecodeTime(baseMediaDecodeTime)})),pipeline.videoSegmentStream.on("timingInfo",self.trigger.bind(self,"videoTimingInfo")),pipeline.h264Stream.pipe(pipeline.videoSegmentStream).pipe(pipeline.coalesceStream)),audioTrack&&!pipeline.audioSegmentStream&&(pipeline.coalesceStream.numberOfTracks++,pipeline.audioSegmentStream=new AudioSegmentStream(audioTrack,options),pipeline.audioSegmentStream.on("log",self.getLogTrigger_("audioSegmentStream")),pipeline.audioSegmentStream.on("timingInfo",self.trigger.bind(self,"audioTimingInfo")),pipeline.audioSegmentStream.on("segmentTimingInfo",self.trigger.bind(self,"audioSegmentTimingInfo")),pipeline.adtsStream.pipe(pipeline.audioSegmentStream).pipe(pipeline.coalesceStream)),self.trigger("trackinfo",{hasAudio:!!audioTrack,hasVideo:!!videoTrack})}})),pipeline.coalesceStream.on("data",this.trigger.bind(this,"data")),pipeline.coalesceStream.on("id3Frame",(function(id3Frame){id3Frame.dispatchType=pipeline.metadataStream.dispatchType,self.trigger("id3Frame",id3Frame)})),pipeline.coalesceStream.on("caption",this.trigger.bind(this,"caption")),pipeline.coalesceStream.on("done",this.trigger.bind(this,"done")),addPipelineLogRetriggers(this,pipeline)},this.setBaseMediaDecodeTime=function(baseMediaDecodeTime){var pipeline=this.transmuxPipeline_;options.keepOriginalTimestamps||(this.baseMediaDecodeTime=baseMediaDecodeTime),audioTrack&&(audioTrack.timelineStartInfo.dts=void 0,audioTrack.timelineStartInfo.pts=void 0,trackDecodeInfo.clearDtsInfo(audioTrack),pipeline.audioTimestampRolloverStream&&pipeline.audioTimestampRolloverStream.discontinuity()),videoTrack&&(pipeline.videoSegmentStream&&(pipeline.videoSegmentStream.gopCache_=[]),videoTrack.timelineStartInfo.dts=void 0,videoTrack.timelineStartInfo.pts=void 0,trackDecodeInfo.clearDtsInfo(videoTrack),pipeline.captionStream.reset()),pipeline.timestampRolloverStream&&pipeline.timestampRolloverStream.discontinuity()},this.setAudioAppendStart=function(timestamp){audioTrack&&this.transmuxPipeline_.audioSegmentStream.setAudioAppendStart(timestamp)},this.setRemux=function(val){var pipeline=this.transmuxPipeline_;options.remux=val,pipeline&&pipeline.coalesceStream&&pipeline.coalesceStream.setRemux(val)},this.alignGopsWith=function(gopsToAlignWith){videoTrack&&this.transmuxPipeline_.videoSegmentStream&&this.transmuxPipeline_.videoSegmentStream.alignGopsWith(gopsToAlignWith)},this.getLogTrigger_=function(key){var self=this;return function(event){event.stream=key,self.trigger("log",event)}},this.push=function(data){if(hasFlushed){var isAac=isLikelyAacData(data);isAac&&"aac"!==this.transmuxPipeline_.type?this.setupAacPipeline():isAac||"ts"===this.transmuxPipeline_.type||this.setupTsPipeline(),hasFlushed=!1}this.transmuxPipeline_.headOfPipeline.push(data)},this.flush=function(){hasFlushed=!0,this.transmuxPipeline_.headOfPipeline.flush()},this.endTimeline=function(){this.transmuxPipeline_.headOfPipeline.endTimeline()},this.reset=function(){this.transmuxPipeline_.headOfPipeline&&this.transmuxPipeline_.headOfPipeline.reset()},this.resetCaptions=function(){this.transmuxPipeline_.captionStream&&this.transmuxPipeline_.captionStream.reset()}}).prototype=new Stream;var win,startTime,getTracks,getTimescaleFromMediaHeader,transmuxer={Transmuxer:Transmuxer,VideoSegmentStream:VideoSegmentStream,AudioSegmentStream:AudioSegmentStream,AUDIO_PROPERTIES:AUDIO_PROPERTIES,VIDEO_PROPERTIES:VIDEO_PROPERTIES,generateSegmentTimingInfo:generateSegmentTimingInfo},bin_toUnsigned=function(value){return value>>>0},parseType_1=function(buffer){var result="";return result+=String.fromCharCode(buffer[0]),result+=String.fromCharCode(buffer[1]),result+=String.fromCharCode(buffer[2]),result+=String.fromCharCode(buffer[3])},toUnsigned$2=bin_toUnsigned,parseType$2=parseType_1,findBox$2=function(data,path){var i,size,type,end,subresults,results=[];if(!path.length)return null;for(i=0;i<data.byteLength;)size=toUnsigned$2(data[i]<<24|data[i+1]<<16|data[i+2]<<8|data[i+3]),type=parseType$2(data.subarray(i+4,i+8)),end=size>1?i+size:data.byteLength,type===path[0]&&(1===path.length?results.push(data.subarray(i+8,end)):(subresults=findBox$2(data.subarray(i+8,end),path.slice(1))).length&&(results=results.concat(subresults))),i=end;return results},toUnsigned$1=bin_toUnsigned,getUint64$2=numbers.getUint64,parseTfdt$2=function(data){var result={version:data[0],flags:new Uint8Array(data.subarray(1,4))};return 1===result.version?result.baseMediaDecodeTime=getUint64$2(data.subarray(4)):result.baseMediaDecodeTime=toUnsigned$1(data[4]<<24|data[5]<<16|data[6]<<8|data[7]),result},parseSampleFlags=function(flags){return{isLeading:(12&flags[0])>>>2,dependsOn:3&flags[0],isDependedOn:(192&flags[1])>>>6,hasRedundancy:(48&flags[1])>>>4,paddingValue:(14&flags[1])>>>1,isNonSyncSample:1&flags[1],degradationPriority:flags[2]<<8|flags[3]}},parseTrun$2=function(data){var sample,result={version:data[0],flags:new Uint8Array(data.subarray(1,4)),samples:[]},view=new DataView(data.buffer,data.byteOffset,data.byteLength),dataOffsetPresent=1&result.flags[2],firstSampleFlagsPresent=4&result.flags[2],sampleDurationPresent=1&result.flags[1],sampleSizePresent=2&result.flags[1],sampleFlagsPresent=4&result.flags[1],sampleCompositionTimeOffsetPresent=8&result.flags[1],sampleCount=view.getUint32(4),offset=8;for(dataOffsetPresent&&(result.dataOffset=view.getInt32(offset),offset+=4),firstSampleFlagsPresent&&sampleCount&&(sample={flags:parseSampleFlags(data.subarray(offset,offset+4))},offset+=4,sampleDurationPresent&&(sample.duration=view.getUint32(offset),offset+=4),sampleSizePresent&&(sample.size=view.getUint32(offset),offset+=4),sampleCompositionTimeOffsetPresent&&(1===result.version?sample.compositionTimeOffset=view.getInt32(offset):sample.compositionTimeOffset=view.getUint32(offset),offset+=4),result.samples.push(sample),sampleCount--);sampleCount--;)sample={},sampleDurationPresent&&(sample.duration=view.getUint32(offset),offset+=4),sampleSizePresent&&(sample.size=view.getUint32(offset),offset+=4),sampleFlagsPresent&&(sample.flags=parseSampleFlags(data.subarray(offset,offset+4)),offset+=4),sampleCompositionTimeOffsetPresent&&(1===result.version?sample.compositionTimeOffset=view.getInt32(offset):sample.compositionTimeOffset=view.getUint32(offset),offset+=4),result.samples.push(sample);return result},parseTfhd$2=function(data){var i,view=new DataView(data.buffer,data.byteOffset,data.byteLength),result={version:data[0],flags:new Uint8Array(data.subarray(1,4)),trackId:view.getUint32(4)},baseDataOffsetPresent=1&result.flags[2],sampleDescriptionIndexPresent=2&result.flags[2],defaultSampleDurationPresent=8&result.flags[2],defaultSampleSizePresent=16&result.flags[2],defaultSampleFlagsPresent=32&result.flags[2],durationIsEmpty=65536&result.flags[0],defaultBaseIsMoof=131072&result.flags[0];return i=8,baseDataOffsetPresent&&(i+=4,result.baseDataOffset=view.getUint32(12),i+=4),sampleDescriptionIndexPresent&&(result.sampleDescriptionIndex=view.getUint32(i),i+=4),defaultSampleDurationPresent&&(result.defaultSampleDuration=view.getUint32(i),i+=4),defaultSampleSizePresent&&(result.defaultSampleSize=view.getUint32(i),i+=4),defaultSampleFlagsPresent&&(result.defaultSampleFlags=view.getUint32(i)),durationIsEmpty&&(result.durationIsEmpty=!0),!baseDataOffsetPresent&&defaultBaseIsMoof&&(result.baseDataOffsetIsMoof=!0),result},discardEmulationPreventionBytes=(win="undefined"!=typeof window?window:void 0!==commonjsGlobal?commonjsGlobal:"undefined"!=typeof self?self:{},captionPacketParser.discardEmulationPreventionBytes),CaptionStream=captionStream.CaptionStream,findBox$1=findBox$2,parseTfdt$1=parseTfdt$2,parseTrun$1=parseTrun$2,parseTfhd$1=parseTfhd$2,window$2=win,mapToSample=function(offset,samples){for(var approximateOffset=offset,i=0;i<samples.length;i++){var sample=samples[i];if(approximateOffset<sample.size)return sample;approximateOffset-=sample.size}return null},parseCaptionNals=function(segment,videoTrackId){var trafs=findBox$1(segment,["moof","traf"]),mdats=findBox$1(segment,["mdat"]),captionNals={},mdatTrafPairs=[];return mdats.forEach((function(mdat,index){var matchingTraf=trafs[index];mdatTrafPairs.push({mdat:mdat,traf:matchingTraf})})),mdatTrafPairs.forEach((function(pair){var samples,result,mdat=pair.mdat,traf=pair.traf,tfhd=findBox$1(traf,["tfhd"]),headerInfo=parseTfhd$1(tfhd[0]),trackId=headerInfo.trackId,tfdt=findBox$1(traf,["tfdt"]),baseMediaDecodeTime=tfdt.length>0?parseTfdt$1(tfdt[0]).baseMediaDecodeTime:0,truns=findBox$1(traf,["trun"]);videoTrackId===trackId&&truns.length>0&&(samples=function(truns,baseMediaDecodeTime,tfhd){var currentDts=baseMediaDecodeTime,defaultSampleDuration=tfhd.defaultSampleDuration||0,defaultSampleSize=tfhd.defaultSampleSize||0,trackId=tfhd.trackId,allSamples=[];return truns.forEach((function(trun){var samples=parseTrun$1(trun).samples;samples.forEach((function(sample){void 0===sample.duration&&(sample.duration=defaultSampleDuration),void 0===sample.size&&(sample.size=defaultSampleSize),sample.trackId=trackId,sample.dts=currentDts,void 0===sample.compositionTimeOffset&&(sample.compositionTimeOffset=0),"bigint"==typeof currentDts?(sample.pts=currentDts+window$2.BigInt(sample.compositionTimeOffset),currentDts+=window$2.BigInt(sample.duration)):(sample.pts=currentDts+sample.compositionTimeOffset,currentDts+=sample.duration)})),allSamples=allSamples.concat(samples)})),allSamples}(truns,baseMediaDecodeTime,headerInfo),result=function(avcStream,samples,trackId){var seiNal,i,length,lastMatchedSample,avcView=new DataView(avcStream.buffer,avcStream.byteOffset,avcStream.byteLength),result={logs:[],seiNals:[]};for(i=0;i+4<avcStream.length;i+=length)if(length=avcView.getUint32(i),i+=4,!(length<=0))switch(31&avcStream[i]){case 6:var data=avcStream.subarray(i+1,i+1+length),matchingSample=mapToSample(i,samples);if(seiNal={nalUnitType:"sei_rbsp",size:length,data:data,escapedRBSP:discardEmulationPreventionBytes(data),trackId:trackId},matchingSample)seiNal.pts=matchingSample.pts,seiNal.dts=matchingSample.dts,lastMatchedSample=matchingSample;else{if(!lastMatchedSample){result.logs.push({level:"warn",message:"We've encountered a nal unit without data at "+i+" for trackId "+trackId+". See mux.js#223."});break}seiNal.pts=lastMatchedSample.pts,seiNal.dts=lastMatchedSample.dts}result.seiNals.push(seiNal)}return result}(mdat,samples,trackId),captionNals[trackId]||(captionNals[trackId]={seiNals:[],logs:[]}),captionNals[trackId].seiNals=captionNals[trackId].seiNals.concat(result.seiNals),captionNals[trackId].logs=captionNals[trackId].logs.concat(result.logs))})),captionNals},captionParser=function(){var captionStream,segmentCache,trackId,timescale,parsedCaptions,parsingPartial,isInitialized=!1;this.isInitialized=function(){return isInitialized},this.init=function(options){captionStream=new CaptionStream,isInitialized=!0,parsingPartial=!!options&&options.isPartial,captionStream.on("data",(function(event){event.startTime=event.startPts/timescale,event.endTime=event.endPts/timescale,parsedCaptions.captions.push(event),parsedCaptions.captionStreams[event.stream]=!0})),captionStream.on("log",(function(log){parsedCaptions.logs.push(log)}))},this.isNewInit=function(videoTrackIds,timescales){return!(videoTrackIds&&0===videoTrackIds.length||timescales&&"object"==typeof timescales&&0===Object.keys(timescales).length)&&(trackId!==videoTrackIds[0]||timescale!==timescales[trackId])},this.parse=function(segment,videoTrackIds,timescales){var parsedData;if(!this.isInitialized())return null;if(!videoTrackIds||!timescales)return null;if(this.isNewInit(videoTrackIds,timescales))trackId=videoTrackIds[0],timescale=timescales[trackId];else if(null===trackId||!timescale)return segmentCache.push(segment),null;for(;segmentCache.length>0;){var cachedSegment=segmentCache.shift();this.parse(cachedSegment,videoTrackIds,timescales)}return parsedData=function(segment,trackId,timescale){if(null===trackId)return null;var trackNals=parseCaptionNals(segment,trackId)[trackId]||{};return{seiNals:trackNals.seiNals,logs:trackNals.logs,timescale:timescale}}(segment,trackId,timescale),parsedData&&parsedData.logs&&(parsedCaptions.logs=parsedCaptions.logs.concat(parsedData.logs)),null!==parsedData&&parsedData.seiNals?(this.pushNals(parsedData.seiNals),this.flushStream(),parsedCaptions):parsedCaptions.logs.length?{logs:parsedCaptions.logs,captions:[],captionStreams:[]}:null},this.pushNals=function(nals){if(!this.isInitialized()||!nals||0===nals.length)return null;nals.forEach((function(nal){captionStream.push(nal)}))},this.flushStream=function(){if(!this.isInitialized())return null;parsingPartial?captionStream.partialFlush():captionStream.flush()},this.clearParsedCaptions=function(){parsedCaptions.captions=[],parsedCaptions.captionStreams={},parsedCaptions.logs=[]},this.resetCaptionStream=function(){if(!this.isInitialized())return null;captionStream.reset()},this.clearAllCaptions=function(){this.clearParsedCaptions(),this.resetCaptionStream()},this.reset=function(){segmentCache=[],trackId=null,timescale=null,parsedCaptions?this.clearParsedCaptions():parsedCaptions={captions:[],captionStreams:{},logs:[]},this.resetCaptionStream()},this.reset()},uint8ToCString=function(data){for(var index=0,curChar=String.fromCharCode(data[index]),retString="";"\0"!==curChar;)retString+=curChar,index++,curChar=String.fromCharCode(data[index]);return retString+=curChar},getUint64$1=numbers.getUint64,isValidEmsgBox=function(version,emsg){var hasScheme="\0"!==emsg.scheme_id_uri,isValidV0Box=0===version&&isDefined(emsg.presentation_time_delta)&&hasScheme,isValidV1Box=1===version&&isDefined(emsg.presentation_time)&&hasScheme;return!(version>1)&&isValidV0Box||isValidV1Box},isDefined=function(data){return void 0!==data||null!==data},emsg$1={parseEmsgBox:function(boxData){var scheme_id_uri,value,timescale,presentation_time,presentation_time_delta,event_duration,id,offset=4,version=boxData[0];if(0===version)offset+=(scheme_id_uri=uint8ToCString(boxData.subarray(offset))).length,offset+=(value=uint8ToCString(boxData.subarray(offset))).length,timescale=(dv=new DataView(boxData.buffer)).getUint32(offset),offset+=4,presentation_time_delta=dv.getUint32(offset),offset+=4,event_duration=dv.getUint32(offset),offset+=4,id=dv.getUint32(offset),offset+=4;else if(1===version){var dv;timescale=(dv=new DataView(boxData.buffer)).getUint32(offset),offset+=4,presentation_time=getUint64$1(boxData.subarray(offset)),offset+=8,event_duration=dv.getUint32(offset),offset+=4,id=dv.getUint32(offset),offset+=4,offset+=(scheme_id_uri=uint8ToCString(boxData.subarray(offset))).length,offset+=(value=uint8ToCString(boxData.subarray(offset))).length}var emsgBox={scheme_id_uri:scheme_id_uri,value:value,timescale:timescale||1,presentation_time:presentation_time,presentation_time_delta:presentation_time_delta,event_duration:event_duration,id:id,message_data:new Uint8Array(boxData.subarray(offset,boxData.byteLength))};return isValidEmsgBox(version,emsgBox)?emsgBox:void 0},scaleTime:function(presentationTime,timescale,timeDelta,offset){return presentationTime||0===presentationTime?presentationTime/timescale:offset+timeDelta/timescale}},toUnsigned=bin_toUnsigned,toHexString=function(value){return("00"+value.toString(16)).slice(-2)},findBox=findBox$2,parseType$1=parseType_1,emsg=emsg$1,parseTfhd=parseTfhd$2,parseTrun=parseTrun$2,parseTfdt=parseTfdt$2,getUint64=numbers.getUint64,window$1=win,parseId3Frames=parseId3.parseId3Frames;startTime=function(timescale,fragment){var lowestTime=findBox(fragment,["moof","traf"]).reduce((function(acc,traf){var baseTime,tfhd=findBox(traf,["tfhd"])[0],id=toUnsigned(tfhd[4]<<24|tfhd[5]<<16|tfhd[6]<<8|tfhd[7]),scale=timescale[id]||9e4,tfdt=findBox(traf,["tfdt"])[0],dv=new DataView(tfdt.buffer,tfdt.byteOffset,tfdt.byteLength);let seconds;return"bigint"==typeof(baseTime=1===tfdt[0]?getUint64(tfdt.subarray(4,12)):dv.getUint32(4))?seconds=baseTime/window$1.BigInt(scale):"number"!=typeof baseTime||isNaN(baseTime)||(seconds=baseTime/scale),seconds<Number.MAX_SAFE_INTEGER&&(seconds=Number(seconds)),seconds<acc&&(acc=seconds),acc}),1/0);return"bigint"==typeof lowestTime||isFinite(lowestTime)?lowestTime:0},getTimescaleFromMediaHeader=function(mdhd){var index=0===mdhd[0]?12:20;return toUnsigned(mdhd[index]<<24|mdhd[index+1]<<16|mdhd[index+2]<<8|mdhd[index+3])},getTracks=function(init){var traks=findBox(init,["moov","trak"]),tracks=[];return traks.forEach((function(trak){var view,tkhdVersion,track={},tkhd=findBox(trak,["tkhd"])[0];tkhd&&(tkhdVersion=(view=new DataView(tkhd.buffer,tkhd.byteOffset,tkhd.byteLength)).getUint8(0),track.id=0===tkhdVersion?view.getUint32(12):view.getUint32(20));var hdlr=findBox(trak,["mdia","hdlr"])[0];if(hdlr){var type=parseType$1(hdlr.subarray(8,12));track.type="vide"===type?"video":"soun"===type?"audio":type}var stsd=findBox(trak,["mdia","minf","stbl","stsd"])[0];if(stsd){var sampleDescriptions=stsd.subarray(8);track.codec=parseType$1(sampleDescriptions.subarray(4,8));var codecConfig,codecBox=findBox(sampleDescriptions,[track.codec])[0];codecBox&&(/^[asm]vc[1-9]$/i.test(track.codec)?(codecConfig=codecBox.subarray(78),"avcC"===parseType$1(codecConfig.subarray(4,8))&&codecConfig.length>11?(track.codec+=".",track.codec+=toHexString(codecConfig[9]),track.codec+=toHexString(codecConfig[10]),track.codec+=toHexString(codecConfig[11])):track.codec="avc1.4d400d"):/^mp4[a,v]$/i.test(track.codec)?(codecConfig=codecBox.subarray(28),"esds"===parseType$1(codecConfig.subarray(4,8))&&codecConfig.length>20&&0!==codecConfig[19]?(track.codec+="."+toHexString(codecConfig[19]),track.codec+="."+toHexString(codecConfig[20]>>>2&63).replace(/^0/,"")):track.codec="mp4a.40.2"):track.codec=track.codec.toLowerCase())}var mdhd=findBox(trak,["mdia","mdhd"])[0];mdhd&&(track.timescale=getTimescaleFromMediaHeader(mdhd)),tracks.push(track)})),tracks};var probe$2_startTime=startTime,probe$2_tracks=getTracks,StreamTypes$1=streamTypes,parsePid=function(packet){var pid=31&packet[1];return pid<<=8,pid|=packet[2]},parsePayloadUnitStartIndicator=function(packet){return!!(64&packet[1])},parseAdaptionField=function(packet){var offset=0;return(48&packet[3])>>>4>1&&(offset+=packet[4]+1),offset},parseNalUnitType=function(type){switch(type){case 5:return"slice_layer_without_partitioning_rbsp_idr";case 6:return"sei_rbsp";case 7:return"seq_parameter_set_rbsp";case 8:return"pic_parameter_set_rbsp";case 9:return"access_unit_delimiter_rbsp";default:return null}},probe$1={parseType:function(packet,pmtPid){var pid=parsePid(packet);return 0===pid?"pat":pid===pmtPid?"pmt":pmtPid?"pes":null},parsePat:function(packet){var pusi=parsePayloadUnitStartIndicator(packet),offset=4+parseAdaptionField(packet);return pusi&&(offset+=packet[offset]+1),(31&packet[offset+10])<<8|packet[offset+11]},parsePmt:function(packet){var programMapTable={},pusi=parsePayloadUnitStartIndicator(packet),payloadOffset=4+parseAdaptionField(packet);if(pusi&&(payloadOffset+=packet[payloadOffset]+1),1&packet[payloadOffset+5]){var tableEnd;tableEnd=3+((15&packet[payloadOffset+1])<<8|packet[payloadOffset+2])-4;for(var offset=12+((15&packet[payloadOffset+10])<<8|packet[payloadOffset+11]);offset<tableEnd;){var i=payloadOffset+offset;programMapTable[(31&packet[i+1])<<8|packet[i+2]]=packet[i],offset+=5+((15&packet[i+3])<<8|packet[i+4])}return programMapTable}},parsePayloadUnitStartIndicator:parsePayloadUnitStartIndicator,parsePesType:function(packet,programMapTable){switch(programMapTable[parsePid(packet)]){case StreamTypes$1.H264_STREAM_TYPE:return"video";case StreamTypes$1.ADTS_STREAM_TYPE:return"audio";case StreamTypes$1.METADATA_STREAM_TYPE:return"timed-metadata";default:return null}},parsePesTime:function(packet){if(!parsePayloadUnitStartIndicator(packet))return null;var offset=4+parseAdaptionField(packet);if(offset>=packet.byteLength)return null;var ptsDtsFlags,pes=null;return 192&(ptsDtsFlags=packet[offset+7])&&((pes={}).pts=(14&packet[offset+9])<<27|(255&packet[offset+10])<<20|(254&packet[offset+11])<<12|(255&packet[offset+12])<<5|(254&packet[offset+13])>>>3,pes.pts*=4,pes.pts+=(6&packet[offset+13])>>>1,pes.dts=pes.pts,64&ptsDtsFlags&&(pes.dts=(14&packet[offset+14])<<27|(255&packet[offset+15])<<20|(254&packet[offset+16])<<12|(255&packet[offset+17])<<5|(254&packet[offset+18])>>>3,pes.dts*=4,pes.dts+=(6&packet[offset+18])>>>1)),pes},videoPacketContainsKeyFrame:function(packet){for(var offset=4+parseAdaptionField(packet),frameBuffer=packet.subarray(offset),frameI=0,frameSyncPoint=0,foundKeyFrame=!1;frameSyncPoint<frameBuffer.byteLength-3;frameSyncPoint++)if(1===frameBuffer[frameSyncPoint+2]){frameI=frameSyncPoint+5;break}for(;frameI<frameBuffer.byteLength;)switch(frameBuffer[frameI]){case 0:if(0!==frameBuffer[frameI-1]){frameI+=2;break}if(0!==frameBuffer[frameI-2]){frameI++;break}frameSyncPoint+3!==frameI-2&&"slice_layer_without_partitioning_rbsp_idr"===parseNalUnitType(31&frameBuffer[frameSyncPoint+3])&&(foundKeyFrame=!0);do{frameI++}while(1!==frameBuffer[frameI]&&frameI<frameBuffer.length);frameSyncPoint=frameI-2,frameI+=3;break;case 1:if(0!==frameBuffer[frameI-1]||0!==frameBuffer[frameI-2]){frameI+=3;break}"slice_layer_without_partitioning_rbsp_idr"===parseNalUnitType(31&frameBuffer[frameSyncPoint+3])&&(foundKeyFrame=!0),frameSyncPoint=frameI-2,frameI+=3;break;default:frameI+=3}return frameBuffer=frameBuffer.subarray(frameSyncPoint),frameI-=frameSyncPoint,frameSyncPoint=0,frameBuffer&&frameBuffer.byteLength>3&&"slice_layer_without_partitioning_rbsp_idr"===parseNalUnitType(31&frameBuffer[frameSyncPoint+3])&&(foundKeyFrame=!0),foundKeyFrame}},StreamTypes=streamTypes,handleRollover=timestampRolloverStream.handleRollover,probe={};probe.ts=probe$1,probe.aac=utils;var ONE_SECOND_IN_TS=clock$2.ONE_SECOND_IN_TS,parseAudioPes_=function(bytes,pmt,result){for(var packet,pesType,pusi,parsed,startIndex=0,endIndex=188,endLoop=!1;endIndex<=bytes.byteLength;)if(71!==bytes[startIndex]||71!==bytes[endIndex]&&endIndex!==bytes.byteLength)startIndex++,endIndex++;else{if(packet=bytes.subarray(startIndex,endIndex),"pes"===probe.ts.parseType(packet,pmt.pid))pesType=probe.ts.parsePesType(packet,pmt.table),pusi=probe.ts.parsePayloadUnitStartIndicator(packet),"audio"===pesType&&pusi&&(parsed=probe.ts.parsePesTime(packet))&&(parsed.type="audio",result.audio.push(parsed),endLoop=!0);if(endLoop)break;startIndex+=188,endIndex+=188}for(startIndex=(endIndex=bytes.byteLength)-188,endLoop=!1;startIndex>=0;)if(71!==bytes[startIndex]||71!==bytes[endIndex]&&endIndex!==bytes.byteLength)startIndex--,endIndex--;else{if(packet=bytes.subarray(startIndex,endIndex),"pes"===probe.ts.parseType(packet,pmt.pid))pesType=probe.ts.parsePesType(packet,pmt.table),pusi=probe.ts.parsePayloadUnitStartIndicator(packet),"audio"===pesType&&pusi&&(parsed=probe.ts.parsePesTime(packet))&&(parsed.type="audio",result.audio.push(parsed),endLoop=!0);if(endLoop)break;startIndex-=188,endIndex-=188}},parseVideoPes_=function(bytes,pmt,result){for(var packet,pesType,pusi,parsed,frame,i,pes,startIndex=0,endIndex=188,endLoop=!1,currentFrame={data:[],size:0};endIndex<bytes.byteLength;)if(71!==bytes[startIndex]||71!==bytes[endIndex])startIndex++,endIndex++;else{if(packet=bytes.subarray(startIndex,endIndex),"pes"===probe.ts.parseType(packet,pmt.pid))if(pesType=probe.ts.parsePesType(packet,pmt.table),pusi=probe.ts.parsePayloadUnitStartIndicator(packet),"video"===pesType&&(pusi&&!endLoop&&(parsed=probe.ts.parsePesTime(packet))&&(parsed.type="video",result.video.push(parsed),endLoop=!0),!result.firstKeyFrame)){if(pusi&&0!==currentFrame.size){for(frame=new Uint8Array(currentFrame.size),i=0;currentFrame.data.length;)pes=currentFrame.data.shift(),frame.set(pes,i),i+=pes.byteLength;if(probe.ts.videoPacketContainsKeyFrame(frame)){var firstKeyFrame=probe.ts.parsePesTime(frame);firstKeyFrame?(result.firstKeyFrame=firstKeyFrame,result.firstKeyFrame.type="video"):console.warn("Failed to extract PTS/DTS from PES at first keyframe. This could be an unusual TS segment, or else mux.js did not parse your TS segment correctly. If you know your TS segments do contain PTS/DTS on keyframes please file a bug report! You can try ffprobe to double check for yourself.")}currentFrame.size=0}currentFrame.data.push(packet),currentFrame.size+=packet.byteLength}if(endLoop&&result.firstKeyFrame)break;startIndex+=188,endIndex+=188}for(startIndex=(endIndex=bytes.byteLength)-188,endLoop=!1;startIndex>=0;)if(71!==bytes[startIndex]||71!==bytes[endIndex])startIndex--,endIndex--;else{if(packet=bytes.subarray(startIndex,endIndex),"pes"===probe.ts.parseType(packet,pmt.pid))pesType=probe.ts.parsePesType(packet,pmt.table),pusi=probe.ts.parsePayloadUnitStartIndicator(packet),"video"===pesType&&pusi&&(parsed=probe.ts.parsePesTime(packet))&&(parsed.type="video",result.video.push(parsed),endLoop=!0);if(endLoop)break;startIndex-=188,endIndex-=188}},inspectTs_=function(bytes){var pmt={pid:null,table:null},result={};for(var pid in function(bytes,pmt){for(var packet,startIndex=0,endIndex=188;endIndex<bytes.byteLength;)if(71!==bytes[startIndex]||71!==bytes[endIndex])startIndex++,endIndex++;else{switch(packet=bytes.subarray(startIndex,endIndex),probe.ts.parseType(packet,pmt.pid)){case"pat":pmt.pid=probe.ts.parsePat(packet);break;case"pmt":var table=probe.ts.parsePmt(packet);pmt.table=pmt.table||{},Object.keys(table).forEach((function(key){pmt.table[key]=table[key]}))}startIndex+=188,endIndex+=188}}(bytes,pmt),pmt.table){if(pmt.table.hasOwnProperty(pid))switch(pmt.table[pid]){case StreamTypes.H264_STREAM_TYPE:result.video=[],parseVideoPes_(bytes,pmt,result),0===result.video.length&&delete result.video;break;case StreamTypes.ADTS_STREAM_TYPE:result.audio=[],parseAudioPes_(bytes,pmt,result),0===result.audio.length&&delete result.audio}}return result},tsInspector_inspect=function(bytes,baseTimestamp){var result;return result=probe.aac.isLikelyAacData(bytes)?function(bytes){for(var packet,endLoop=!1,audioCount=0,sampleRate=null,timestamp=null,frameSize=0,byteIndex=0;bytes.length-byteIndex>=3;){switch(probe.aac.parseType(bytes,byteIndex)){case"timed-metadata":if(bytes.length-byteIndex<10){endLoop=!0;break}if((frameSize=probe.aac.parseId3TagSize(bytes,byteIndex))>bytes.length){endLoop=!0;break}null===timestamp&&(packet=bytes.subarray(byteIndex,byteIndex+frameSize),timestamp=probe.aac.parseAacTimestamp(packet)),byteIndex+=frameSize;break;case"audio":if(bytes.length-byteIndex<7){endLoop=!0;break}if((frameSize=probe.aac.parseAdtsSize(bytes,byteIndex))>bytes.length){endLoop=!0;break}null===sampleRate&&(packet=bytes.subarray(byteIndex,byteIndex+frameSize),sampleRate=probe.aac.parseSampleRate(packet)),audioCount++,byteIndex+=frameSize;break;default:byteIndex++}if(endLoop)return null}if(null===sampleRate||null===timestamp)return null;var audioTimescale=ONE_SECOND_IN_TS/sampleRate;return{audio:[{type:"audio",dts:timestamp,pts:timestamp},{type:"audio",dts:timestamp+1024*audioCount*audioTimescale,pts:timestamp+1024*audioCount*audioTimescale}]}}(bytes):inspectTs_(bytes),result&&(result.audio||result.video)?(function(segmentInfo,baseTimestamp){if(segmentInfo.audio&&segmentInfo.audio.length){var audioBaseTimestamp=baseTimestamp;(void 0===audioBaseTimestamp||isNaN(audioBaseTimestamp))&&(audioBaseTimestamp=segmentInfo.audio[0].dts),segmentInfo.audio.forEach((function(info){info.dts=handleRollover(info.dts,audioBaseTimestamp),info.pts=handleRollover(info.pts,audioBaseTimestamp),info.dtsTime=info.dts/ONE_SECOND_IN_TS,info.ptsTime=info.pts/ONE_SECOND_IN_TS}))}if(segmentInfo.video&&segmentInfo.video.length){var videoBaseTimestamp=baseTimestamp;if((void 0===videoBaseTimestamp||isNaN(videoBaseTimestamp))&&(videoBaseTimestamp=segmentInfo.video[0].dts),segmentInfo.video.forEach((function(info){info.dts=handleRollover(info.dts,videoBaseTimestamp),info.pts=handleRollover(info.pts,videoBaseTimestamp),info.dtsTime=info.dts/ONE_SECOND_IN_TS,info.ptsTime=info.pts/ONE_SECOND_IN_TS})),segmentInfo.firstKeyFrame){var frame=segmentInfo.firstKeyFrame;frame.dts=handleRollover(frame.dts,videoBaseTimestamp),frame.pts=handleRollover(frame.pts,videoBaseTimestamp),frame.dtsTime=frame.dts/ONE_SECOND_IN_TS,frame.ptsTime=frame.pts/ONE_SECOND_IN_TS}}}(result,baseTimestamp),result):null};class MessageHandlers{constructor(self,options){this.options=options||{},this.self=self,this.init()}init(){this.transmuxer&&this.transmuxer.dispose(),this.transmuxer=new transmuxer.Transmuxer(this.options),function(self,transmuxer){transmuxer.on("data",(function(segment){const initArray=segment.initSegment;segment.initSegment={data:initArray.buffer,byteOffset:initArray.byteOffset,byteLength:initArray.byteLength};const typedArray=segment.data;segment.data=typedArray.buffer,self.postMessage({action:"data",segment:segment,byteOffset:typedArray.byteOffset,byteLength:typedArray.byteLength},[segment.data])})),transmuxer.on("done",(function(data){self.postMessage({action:"done"})})),transmuxer.on("gopInfo",(function(gopInfo){self.postMessage({action:"gopInfo",gopInfo:gopInfo})})),transmuxer.on("videoSegmentTimingInfo",(function(timingInfo){const videoSegmentTimingInfo={start:{decode:clock$2.videoTsToSeconds(timingInfo.start.dts),presentation:clock$2.videoTsToSeconds(timingInfo.start.pts)},end:{decode:clock$2.videoTsToSeconds(timingInfo.end.dts),presentation:clock$2.videoTsToSeconds(timingInfo.end.pts)},baseMediaDecodeTime:clock$2.videoTsToSeconds(timingInfo.baseMediaDecodeTime)};timingInfo.prependedContentDuration&&(videoSegmentTimingInfo.prependedContentDuration=clock$2.videoTsToSeconds(timingInfo.prependedContentDuration)),self.postMessage({action:"videoSegmentTimingInfo",videoSegmentTimingInfo:videoSegmentTimingInfo})})),transmuxer.on("audioSegmentTimingInfo",(function(timingInfo){const audioSegmentTimingInfo={start:{decode:clock$2.videoTsToSeconds(timingInfo.start.dts),presentation:clock$2.videoTsToSeconds(timingInfo.start.pts)},end:{decode:clock$2.videoTsToSeconds(timingInfo.end.dts),presentation:clock$2.videoTsToSeconds(timingInfo.end.pts)},baseMediaDecodeTime:clock$2.videoTsToSeconds(timingInfo.baseMediaDecodeTime)};timingInfo.prependedContentDuration&&(audioSegmentTimingInfo.prependedContentDuration=clock$2.videoTsToSeconds(timingInfo.prependedContentDuration)),self.postMessage({action:"audioSegmentTimingInfo",audioSegmentTimingInfo:audioSegmentTimingInfo})})),transmuxer.on("id3Frame",(function(id3Frame){self.postMessage({action:"id3Frame",id3Frame:id3Frame})})),transmuxer.on("caption",(function(caption){self.postMessage({action:"caption",caption:caption})})),transmuxer.on("trackinfo",(function(trackInfo){self.postMessage({action:"trackinfo",trackInfo:trackInfo})})),transmuxer.on("audioTimingInfo",(function(audioTimingInfo){self.postMessage({action:"audioTimingInfo",audioTimingInfo:{start:clock$2.videoTsToSeconds(audioTimingInfo.start),end:clock$2.videoTsToSeconds(audioTimingInfo.end)}})})),transmuxer.on("videoTimingInfo",(function(videoTimingInfo){self.postMessage({action:"videoTimingInfo",videoTimingInfo:{start:clock$2.videoTsToSeconds(videoTimingInfo.start),end:clock$2.videoTsToSeconds(videoTimingInfo.end)}})})),transmuxer.on("log",(function(log){self.postMessage({action:"log",log:log})}))}(this.self,this.transmuxer)}pushMp4Captions(data){this.captionParser||(this.captionParser=new captionParser,this.captionParser.init());const segment=new Uint8Array(data.data,data.byteOffset,data.byteLength),parsed=this.captionParser.parse(segment,data.trackIds,data.timescales);this.self.postMessage({action:"mp4Captions",captions:parsed&&parsed.captions||[],logs:parsed&&parsed.logs||[],data:segment.buffer},[segment.buffer])}probeMp4StartTime(_ref43){let{timescales:timescales,data:data}=_ref43;const startTime=probe$2_startTime(timescales,data);this.self.postMessage({action:"probeMp4StartTime",startTime:startTime,data:data},[data.buffer])}probeMp4Tracks(_ref44){let{data:data}=_ref44;const tracks=probe$2_tracks(data);this.self.postMessage({action:"probeMp4Tracks",tracks:tracks,data:data},[data.buffer])}probeTs(_ref45){let{data:data,baseStartTime:baseStartTime}=_ref45;const tsStartTime="number"!=typeof baseStartTime||isNaN(baseStartTime)?void 0:baseStartTime*clock$2.ONE_SECOND_IN_TS,timeInfo=tsInspector_inspect(data,tsStartTime);let result=null;timeInfo&&(result={hasVideo:timeInfo.video&&2===timeInfo.video.length||!1,hasAudio:timeInfo.audio&&2===timeInfo.audio.length||!1},result.hasVideo&&(result.videoStart=timeInfo.video[0].ptsTime),result.hasAudio&&(result.audioStart=timeInfo.audio[0].ptsTime)),this.self.postMessage({action:"probeTs",result:result,data:data},[data.buffer])}clearAllMp4Captions(){this.captionParser&&this.captionParser.clearAllCaptions()}clearParsedMp4Captions(){this.captionParser&&this.captionParser.clearParsedCaptions()}push(data){const segment=new Uint8Array(data.data,data.byteOffset,data.byteLength);this.transmuxer.push(segment)}reset(){this.transmuxer.reset()}setTimestampOffset(data){const timestampOffset=data.timestampOffset||0;this.transmuxer.setBaseMediaDecodeTime(Math.round(clock$2.secondsToVideoTs(timestampOffset)))}setAudioAppendStart(data){this.transmuxer.setAudioAppendStart(Math.ceil(clock$2.secondsToVideoTs(data.appendStart)))}setRemux(data){this.transmuxer.setRemux(data.remux)}flush(data){this.transmuxer.flush(),self.postMessage({action:"done",type:"transmuxed"})}endTimeline(){this.transmuxer.endTimeline(),self.postMessage({action:"endedtimeline",type:"transmuxed"})}alignGopsWith(data){this.transmuxer.alignGopsWith(data.gopsToAlignWith.slice())}}self.onmessage=function(event){"init"===event.data.action&&event.data.options?this.messageHandlers=new MessageHandlers(self,event.data.options):(this.messageHandlers||(this.messageHandlers=new MessageHandlers(self)),event.data&&event.data.action&&"init"!==event.data.action&&this.messageHandlers[event.data.action]&&this.messageHandlers[event.data.action](event.data))}})));var TransmuxWorker=factory(workerCode$1);const processTransmux=options=>{const{transmuxer:transmuxer,bytes:bytes,audioAppendStart:audioAppendStart,gopsToAlignWith:gopsToAlignWith,remux:remux,onData:onData,onTrackInfo:onTrackInfo,onAudioTimingInfo:onAudioTimingInfo,onVideoTimingInfo:onVideoTimingInfo,onVideoSegmentTimingInfo:onVideoSegmentTimingInfo,onAudioSegmentTimingInfo:onAudioSegmentTimingInfo,onId3:onId3,onCaptions:onCaptions,onDone:onDone,onEndedTimeline:onEndedTimeline,onTransmuxerLog:onTransmuxerLog,isEndOfTimeline:isEndOfTimeline}=options,transmuxedData={buffer:[]};let waitForEndedTimelineEvent=isEndOfTimeline;if(transmuxer.onmessage=event=>{transmuxer.currentTransmux===options&&("data"===event.data.action&&((event,transmuxedData,callback)=>{const{type:type,initSegment:initSegment,captions:captions,captionStreams:captionStreams,metadata:metadata,videoFrameDtsTime:videoFrameDtsTime,videoFramePtsTime:videoFramePtsTime}=event.data.segment;transmuxedData.buffer.push({captions:captions,captionStreams:captionStreams,metadata:metadata});const boxes=event.data.segment.boxes||{data:event.data.segment.data},result={type:type,data:new Uint8Array(boxes.data,boxes.data.byteOffset,boxes.data.byteLength),initSegment:new Uint8Array(initSegment.data,initSegment.byteOffset,initSegment.byteLength)};void 0!==videoFrameDtsTime&&(result.videoFrameDtsTime=videoFrameDtsTime),void 0!==videoFramePtsTime&&(result.videoFramePtsTime=videoFramePtsTime),callback(result)})(event,transmuxedData,onData),"trackinfo"===event.data.action&&onTrackInfo(event.data.trackInfo),"gopInfo"===event.data.action&&((event,transmuxedData)=>{transmuxedData.gopInfo=event.data.gopInfo})(event,transmuxedData),"audioTimingInfo"===event.data.action&&onAudioTimingInfo(event.data.audioTimingInfo),"videoTimingInfo"===event.data.action&&onVideoTimingInfo(event.data.videoTimingInfo),"videoSegmentTimingInfo"===event.data.action&&onVideoSegmentTimingInfo(event.data.videoSegmentTimingInfo),"audioSegmentTimingInfo"===event.data.action&&onAudioSegmentTimingInfo(event.data.audioSegmentTimingInfo),"id3Frame"===event.data.action&&onId3([event.data.id3Frame],event.data.id3Frame.dispatchType),"caption"===event.data.action&&onCaptions(event.data.caption),"endedtimeline"===event.data.action&&(waitForEndedTimelineEvent=!1,onEndedTimeline()),"log"===event.data.action&&onTransmuxerLog(event.data.log),"transmuxed"===event.data.type&&(waitForEndedTimelineEvent||(transmuxer.onmessage=null,(_ref46=>{let{transmuxedData:transmuxedData,callback:callback}=_ref46;transmuxedData.buffer=[],callback(transmuxedData)})({transmuxedData:transmuxedData,callback:onDone}),dequeue(transmuxer))))},audioAppendStart&&transmuxer.postMessage({action:"setAudioAppendStart",appendStart:audioAppendStart}),Array.isArray(gopsToAlignWith)&&transmuxer.postMessage({action:"alignGopsWith",gopsToAlignWith:gopsToAlignWith}),void 0!==remux&&transmuxer.postMessage({action:"setRemux",remux:remux}),bytes.byteLength){const buffer=bytes instanceof ArrayBuffer?bytes:bytes.buffer,byteOffset=bytes instanceof ArrayBuffer?0:bytes.byteOffset;transmuxer.postMessage({action:"push",data:buffer,byteOffset:byteOffset,byteLength:bytes.byteLength},[buffer])}isEndOfTimeline&&transmuxer.postMessage({action:"endTimeline"}),transmuxer.postMessage({action:"flush"})},dequeue=transmuxer=>{transmuxer.currentTransmux=null,transmuxer.transmuxQueue.length&&(transmuxer.currentTransmux=transmuxer.transmuxQueue.shift(),"function"==typeof transmuxer.currentTransmux?transmuxer.currentTransmux():processTransmux(transmuxer.currentTransmux))},processAction=(transmuxer,action)=>{transmuxer.postMessage({action:action}),dequeue(transmuxer)},enqueueAction=(action,transmuxer)=>{if(!transmuxer.currentTransmux)return transmuxer.currentTransmux=action,void processAction(transmuxer,action);transmuxer.transmuxQueue.push(processAction.bind(null,transmuxer,action))},transmux=options=>{if(!options.transmuxer.currentTransmux)return options.transmuxer.currentTransmux=options,void processTransmux(options);options.transmuxer.transmuxQueue.push(options)};var segmentTransmuxer_reset=transmuxer=>{enqueueAction("reset",transmuxer)},segmentTransmuxer_createTransmuxer=options=>{const transmuxer=new TransmuxWorker;transmuxer.currentTransmux=null,transmuxer.transmuxQueue=[];const term=transmuxer.terminate;return transmuxer.terminate=()=>(transmuxer.currentTransmux=null,transmuxer.transmuxQueue.length=0,term.call(transmuxer)),transmuxer.postMessage({action:"init",options:options}),transmuxer};const workerCallback=function(options){const transmuxer=options.transmuxer,endAction=options.endAction||options.action,callback=options.callback,message=_extends$1({},options,{endAction:null,transmuxer:null,callback:null}),listenForEndEvent=event=>{event.data.action===endAction&&(transmuxer.removeEventListener("message",listenForEndEvent),event.data.data&&(event.data.data=new Uint8Array(event.data.data,options.byteOffset||0,options.byteLength||event.data.data.byteLength),options.data&&(options.data=event.data.data)),callback(event.data))};if(transmuxer.addEventListener("message",listenForEndEvent),options.data){const isArrayBuffer=options.data instanceof ArrayBuffer;message.byteOffset=isArrayBuffer?0:options.data.byteOffset,message.byteLength=options.data.byteLength;const transfers=[isArrayBuffer?options.data:options.data.buffer];transmuxer.postMessage(message,transfers)}else transmuxer.postMessage(message)},REQUEST_ERRORS_FAILURE=2,REQUEST_ERRORS_TIMEOUT=-101,REQUEST_ERRORS_ABORTED=-102,abortAll=activeXhrs=>{activeXhrs.forEach((xhr=>{xhr.abort()}))},handleErrors=(error,request)=>request.timedout?{status:request.status,message:"HLS request timed-out at URL: "+request.uri,code:REQUEST_ERRORS_TIMEOUT,xhr:request}:request.aborted?{status:request.status,message:"HLS request aborted at URL: "+request.uri,code:REQUEST_ERRORS_ABORTED,xhr:request}:error?{status:request.status,message:"HLS request errored at URL: "+request.uri,code:REQUEST_ERRORS_FAILURE,xhr:request}:"arraybuffer"===request.responseType&&0===request.response.byteLength?{status:request.status,message:"Empty HLS response at URL: "+request.uri,code:REQUEST_ERRORS_FAILURE,xhr:request}:null,handleKeyResponse=(segment,objects,finishProcessingFn)=>(error,request)=>{const response=request.response,errorObj=handleErrors(error,request);if(errorObj)return finishProcessingFn(errorObj,segment);if(16!==response.byteLength)return finishProcessingFn({status:request.status,message:"Invalid HLS key at URL: "+request.uri,code:REQUEST_ERRORS_FAILURE,xhr:request},segment);const view=new DataView(response),bytes=new Uint32Array([view.getUint32(0),view.getUint32(4),view.getUint32(8),view.getUint32(12)]);for(let i=0;i<objects.length;i++)objects[i].bytes=bytes;return finishProcessingFn(null,segment)},parseInitSegment=(segment,callback)=>{const type=detectContainerForBytes(segment.map.bytes);if("mp4"!==type){const uri=segment.map.resolvedUri||segment.map.uri;return callback({internal:!0,message:"Found unsupported ".concat(type||"unknown"," container for initialization segment at URL: ").concat(uri),code:REQUEST_ERRORS_FAILURE})}workerCallback({action:"probeMp4Tracks",data:segment.map.bytes,transmuxer:segment.transmuxer,callback:_ref47=>{let{tracks:tracks,data:data}=_ref47;return segment.map.bytes=data,tracks.forEach((function(track){segment.map.tracks=segment.map.tracks||{},segment.map.tracks[track.type]||(segment.map.tracks[track.type]=track,"number"==typeof track.id&&track.timescale&&(segment.map.timescales=segment.map.timescales||{},segment.map.timescales[track.id]=track.timescale))})),callback(null)}})},handleSegmentResponse=_ref49=>{let{segment:segment,finishProcessingFn:finishProcessingFn,responseType:responseType}=_ref49;return(error,request)=>{const errorObj=handleErrors(error,request);if(errorObj)return finishProcessingFn(errorObj,segment);const newBytes="arraybuffer"!==responseType&&request.responseText?(string=>{const view=new Uint8Array(new ArrayBuffer(string.length));for(let i=0;i<string.length;i++)view[i]=string.charCodeAt(i);return view.buffer})(request.responseText.substring(segment.lastReachedChar||0)):request.response;return segment.stats=(request=>({bandwidth:request.bandwidth,bytesReceived:request.bytesReceived||0,roundTripTime:request.roundTripTime||0}))(request),segment.key?segment.encryptedBytes=new Uint8Array(newBytes):segment.bytes=new Uint8Array(newBytes),finishProcessingFn(null,segment)}},transmuxAndNotify=_ref50=>{let{segment:segment,bytes:bytes,trackInfoFn:trackInfoFn,timingInfoFn:timingInfoFn,videoSegmentTimingInfoFn:videoSegmentTimingInfoFn,audioSegmentTimingInfoFn:audioSegmentTimingInfoFn,id3Fn:id3Fn,captionsFn:captionsFn,isEndOfTimeline:isEndOfTimeline,endedTimelineFn:endedTimelineFn,dataFn:dataFn,doneFn:doneFn,onTransmuxerLog:onTransmuxerLog}=_ref50;const fmp4Tracks=segment.map&&segment.map.tracks||{},isMuxed=Boolean(fmp4Tracks.audio&&fmp4Tracks.video);let audioStartFn=timingInfoFn.bind(null,segment,"audio","start");const audioEndFn=timingInfoFn.bind(null,segment,"audio","end");let videoStartFn=timingInfoFn.bind(null,segment,"video","start");const videoEndFn=timingInfoFn.bind(null,segment,"video","end");workerCallback({action:"probeTs",transmuxer:segment.transmuxer,data:bytes,baseStartTime:segment.baseStartTime,callback:data=>{segment.bytes=bytes=data.data;const probeResult=data.result;probeResult&&(trackInfoFn(segment,{hasAudio:probeResult.hasAudio,hasVideo:probeResult.hasVideo,isMuxed:isMuxed}),trackInfoFn=null,probeResult.hasAudio&&!isMuxed&&audioStartFn(probeResult.audioStart),probeResult.hasVideo&&videoStartFn(probeResult.videoStart),audioStartFn=null,videoStartFn=null),transmux({bytes:bytes,transmuxer:segment.transmuxer,audioAppendStart:segment.audioAppendStart,gopsToAlignWith:segment.gopsToAlignWith,remux:isMuxed,onData:result=>{result.type="combined"===result.type?"video":result.type,dataFn(segment,result)},onTrackInfo:trackInfo=>{trackInfoFn&&(isMuxed&&(trackInfo.isMuxed=!0),trackInfoFn(segment,trackInfo))},onAudioTimingInfo:audioTimingInfo=>{audioStartFn&&void 0!==audioTimingInfo.start&&(audioStartFn(audioTimingInfo.start),audioStartFn=null),audioEndFn&&void 0!==audioTimingInfo.end&&audioEndFn(audioTimingInfo.end)},onVideoTimingInfo:videoTimingInfo=>{videoStartFn&&void 0!==videoTimingInfo.start&&(videoStartFn(videoTimingInfo.start),videoStartFn=null),videoEndFn&&void 0!==videoTimingInfo.end&&videoEndFn(videoTimingInfo.end)},onVideoSegmentTimingInfo:videoSegmentTimingInfo=>{videoSegmentTimingInfoFn(videoSegmentTimingInfo)},onAudioSegmentTimingInfo:audioSegmentTimingInfo=>{audioSegmentTimingInfoFn(audioSegmentTimingInfo)},onId3:(id3Frames,dispatchType)=>{id3Fn(segment,id3Frames,dispatchType)},onCaptions:captions=>{captionsFn(segment,[captions])},isEndOfTimeline:isEndOfTimeline,onEndedTimeline:()=>{endedTimelineFn()},onTransmuxerLog:onTransmuxerLog,onDone:result=>{doneFn&&(result.type="combined"===result.type?"video":result.type,doneFn(null,segment,result))}})}})},handleSegmentBytes=_ref51=>{let{segment:segment,bytes:bytes,trackInfoFn:trackInfoFn,timingInfoFn:timingInfoFn,videoSegmentTimingInfoFn:videoSegmentTimingInfoFn,audioSegmentTimingInfoFn:audioSegmentTimingInfoFn,id3Fn:id3Fn,captionsFn:captionsFn,isEndOfTimeline:isEndOfTimeline,endedTimelineFn:endedTimelineFn,dataFn:dataFn,doneFn:doneFn,onTransmuxerLog:onTransmuxerLog}=_ref51,bytesAsUint8Array=new Uint8Array(bytes);if(function(bytes){return findBox(bytes,["moof"]).length>0}(bytesAsUint8Array)){segment.isFmp4=!0;const{tracks:tracks}=segment.map,trackInfo={isFmp4:!0,hasVideo:!!tracks.video,hasAudio:!!tracks.audio};tracks.audio&&tracks.audio.codec&&"enca"!==tracks.audio.codec&&(trackInfo.audioCodec=tracks.audio.codec),tracks.video&&tracks.video.codec&&"encv"!==tracks.video.codec&&(trackInfo.videoCodec=tracks.video.codec),tracks.video&&tracks.audio&&(trackInfo.isMuxed=!0),trackInfoFn(segment,trackInfo);const finishLoading=captions=>{dataFn(segment,{data:bytesAsUint8Array,type:trackInfo.hasAudio&&!trackInfo.isMuxed?"audio":"video"}),captions&&captions.length&&captionsFn(segment,captions),doneFn(null,segment,{})};workerCallback({action:"probeMp4StartTime",timescales:segment.map.timescales,data:bytesAsUint8Array,transmuxer:segment.transmuxer,callback:_ref52=>{let{data:data,startTime:startTime}=_ref52;bytes=data.buffer,segment.bytes=bytesAsUint8Array=data,trackInfo.hasAudio&&!trackInfo.isMuxed&&timingInfoFn(segment,"audio","start",startTime),trackInfo.hasVideo&&timingInfoFn(segment,"video","start",startTime),tracks.video&&data.byteLength&&segment.transmuxer?workerCallback({action:"pushMp4Captions",endAction:"mp4Captions",transmuxer:segment.transmuxer,data:bytesAsUint8Array,timescales:segment.map.timescales,trackIds:[tracks.video.id],callback:message=>{bytes=message.data.buffer,segment.bytes=bytesAsUint8Array=message.data,message.logs.forEach((function(log){onTransmuxerLog(merge(log,{stream:"mp4CaptionParser"}))})),finishLoading(message.captions)}}):finishLoading()}})}else if(segment.transmuxer){if(void 0===segment.container&&(segment.container=detectContainerForBytes(bytesAsUint8Array)),"ts"!==segment.container&&"aac"!==segment.container)return trackInfoFn(segment,{hasAudio:!1,hasVideo:!1}),void doneFn(null,segment,{});transmuxAndNotify({segment:segment,bytes:bytes,trackInfoFn:trackInfoFn,timingInfoFn:timingInfoFn,videoSegmentTimingInfoFn:videoSegmentTimingInfoFn,audioSegmentTimingInfoFn:audioSegmentTimingInfoFn,id3Fn:id3Fn,captionsFn:captionsFn,isEndOfTimeline:isEndOfTimeline,endedTimelineFn:endedTimelineFn,dataFn:dataFn,doneFn:doneFn,onTransmuxerLog:onTransmuxerLog})}else doneFn(null,segment,{})},decrypt=function(_ref53,callback){let{id:id,key:key,encryptedBytes:encryptedBytes,decryptionWorker:decryptionWorker}=_ref53;const decryptionHandler=event=>{if(event.data.source===id){decryptionWorker.removeEventListener("message",decryptionHandler);const decrypted=event.data.decrypted;callback(new Uint8Array(decrypted.bytes,decrypted.byteOffset,decrypted.byteLength))}};let keyBytes;decryptionWorker.addEventListener("message",decryptionHandler),keyBytes=key.bytes.slice?key.bytes.slice():new Uint32Array(Array.prototype.slice.call(key.bytes)),decryptionWorker.postMessage(createTransferableMessage({source:id,encrypted:encryptedBytes,key:keyBytes,iv:key.iv}),[encryptedBytes.buffer,keyBytes.buffer])},waitForCompletion=_ref55=>{let{activeXhrs:activeXhrs,decryptionWorker:decryptionWorker,trackInfoFn:trackInfoFn,timingInfoFn:timingInfoFn,videoSegmentTimingInfoFn:videoSegmentTimingInfoFn,audioSegmentTimingInfoFn:audioSegmentTimingInfoFn,id3Fn:id3Fn,captionsFn:captionsFn,isEndOfTimeline:isEndOfTimeline,endedTimelineFn:endedTimelineFn,dataFn:dataFn,doneFn:doneFn,onTransmuxerLog:onTransmuxerLog}=_ref55,count=0,didError=!1;return(error,segment)=>{if(!didError){if(error)return didError=!0,abortAll(activeXhrs),doneFn(error,segment);if(count+=1,count===activeXhrs.length){const segmentFinish=function(){if(segment.encryptedBytes)return(_ref54=>{let{decryptionWorker:decryptionWorker,segment:segment,trackInfoFn:trackInfoFn,timingInfoFn:timingInfoFn,videoSegmentTimingInfoFn:videoSegmentTimingInfoFn,audioSegmentTimingInfoFn:audioSegmentTimingInfoFn,id3Fn:id3Fn,captionsFn:captionsFn,isEndOfTimeline:isEndOfTimeline,endedTimelineFn:endedTimelineFn,dataFn:dataFn,doneFn:doneFn,onTransmuxerLog:onTransmuxerLog}=_ref54;decrypt({id:segment.requestId,key:segment.key,encryptedBytes:segment.encryptedBytes,decryptionWorker:decryptionWorker},(decryptedBytes=>{segment.bytes=decryptedBytes,handleSegmentBytes({segment:segment,bytes:segment.bytes,trackInfoFn:trackInfoFn,timingInfoFn:timingInfoFn,videoSegmentTimingInfoFn:videoSegmentTimingInfoFn,audioSegmentTimingInfoFn:audioSegmentTimingInfoFn,id3Fn:id3Fn,captionsFn:captionsFn,isEndOfTimeline:isEndOfTimeline,endedTimelineFn:endedTimelineFn,dataFn:dataFn,doneFn:doneFn,onTransmuxerLog:onTransmuxerLog})}))})({decryptionWorker:decryptionWorker,segment:segment,trackInfoFn:trackInfoFn,timingInfoFn:timingInfoFn,videoSegmentTimingInfoFn:videoSegmentTimingInfoFn,audioSegmentTimingInfoFn:audioSegmentTimingInfoFn,id3Fn:id3Fn,captionsFn:captionsFn,isEndOfTimeline:isEndOfTimeline,endedTimelineFn:endedTimelineFn,dataFn:dataFn,doneFn:doneFn,onTransmuxerLog:onTransmuxerLog});handleSegmentBytes({segment:segment,bytes:segment.bytes,trackInfoFn:trackInfoFn,timingInfoFn:timingInfoFn,videoSegmentTimingInfoFn:videoSegmentTimingInfoFn,audioSegmentTimingInfoFn:audioSegmentTimingInfoFn,id3Fn:id3Fn,captionsFn:captionsFn,isEndOfTimeline:isEndOfTimeline,endedTimelineFn:endedTimelineFn,dataFn:dataFn,doneFn:doneFn,onTransmuxerLog:onTransmuxerLog})};if(segment.endOfAllRequests=Date.now(),segment.map&&segment.map.encryptedBytes&&!segment.map.bytes)return decrypt({decryptionWorker:decryptionWorker,id:segment.requestId+"-init",encryptedBytes:segment.map.encryptedBytes,key:segment.map.key},(decryptedBytes=>{segment.map.bytes=decryptedBytes,parseInitSegment(segment,(parseError=>{if(parseError)return abortAll(activeXhrs),doneFn(parseError,segment);segmentFinish()}))}));segmentFinish()}}}},handleProgress=_ref57=>{let{segment:segment,progressFn:progressFn,trackInfoFn:trackInfoFn,timingInfoFn:timingInfoFn,videoSegmentTimingInfoFn:videoSegmentTimingInfoFn,audioSegmentTimingInfoFn:audioSegmentTimingInfoFn,id3Fn:id3Fn,captionsFn:captionsFn,isEndOfTimeline:isEndOfTimeline,endedTimelineFn:endedTimelineFn,dataFn:dataFn}=_ref57;return event=>{if(!event.target.aborted)return segment.stats=merge(segment.stats,(progressEvent=>{const request=progressEvent.target,stats={bandwidth:1/0,bytesReceived:0,roundTripTime:Date.now()-request.requestTime||0};return stats.bytesReceived=progressEvent.loaded,stats.bandwidth=Math.floor(stats.bytesReceived/stats.roundTripTime*8*1e3),stats})(event)),!segment.stats.firstBytesReceivedAt&&segment.stats.bytesReceived&&(segment.stats.firstBytesReceivedAt=Date.now()),progressFn(event,segment)}},mediaSegmentRequest=_ref58=>{let{xhr:xhr,xhrOptions:xhrOptions,decryptionWorker:decryptionWorker,segment:segment,abortFn:abortFn,progressFn:progressFn,trackInfoFn:trackInfoFn,timingInfoFn:timingInfoFn,videoSegmentTimingInfoFn:videoSegmentTimingInfoFn,audioSegmentTimingInfoFn:audioSegmentTimingInfoFn,id3Fn:id3Fn,captionsFn:captionsFn,isEndOfTimeline:isEndOfTimeline,endedTimelineFn:endedTimelineFn,dataFn:dataFn,doneFn:doneFn,onTransmuxerLog:onTransmuxerLog}=_ref58;const activeXhrs=[],finishProcessingFn=waitForCompletion({activeXhrs:activeXhrs,decryptionWorker:decryptionWorker,trackInfoFn:trackInfoFn,timingInfoFn:timingInfoFn,videoSegmentTimingInfoFn:videoSegmentTimingInfoFn,audioSegmentTimingInfoFn:audioSegmentTimingInfoFn,id3Fn:id3Fn,captionsFn:captionsFn,isEndOfTimeline:isEndOfTimeline,endedTimelineFn:endedTimelineFn,dataFn:dataFn,doneFn:doneFn,onTransmuxerLog:onTransmuxerLog});if(segment.key&&!segment.key.bytes){const objects=[segment.key];segment.map&&!segment.map.bytes&&segment.map.key&&segment.map.key.resolvedUri===segment.key.resolvedUri&&objects.push(segment.map.key);const keyXhr=xhr(merge(xhrOptions,{uri:segment.key.resolvedUri,responseType:"arraybuffer"}),handleKeyResponse(segment,objects,finishProcessingFn));activeXhrs.push(keyXhr)}if(segment.map&&!segment.map.bytes){if(segment.map.key&&(!segment.key||segment.key.resolvedUri!==segment.map.key.resolvedUri)){const mapKeyXhr=xhr(merge(xhrOptions,{uri:segment.map.key.resolvedUri,responseType:"arraybuffer"}),handleKeyResponse(segment,[segment.map.key],finishProcessingFn));activeXhrs.push(mapKeyXhr)}const initSegmentOptions=merge(xhrOptions,{uri:segment.map.resolvedUri,responseType:"arraybuffer",headers:segmentXhrHeaders(segment.map)}),initSegmentRequestCallback=(_ref48=>{let{segment:segment,finishProcessingFn:finishProcessingFn}=_ref48;return(error,request)=>{const errorObj=handleErrors(error,request);if(errorObj)return finishProcessingFn(errorObj,segment);const bytes=new Uint8Array(request.response);if(segment.map.key)return segment.map.encryptedBytes=bytes,finishProcessingFn(null,segment);segment.map.bytes=bytes,parseInitSegment(segment,(function(parseError){if(parseError)return parseError.xhr=request,parseError.status=request.status,finishProcessingFn(parseError,segment);finishProcessingFn(null,segment)}))}})({segment:segment,finishProcessingFn:finishProcessingFn}),initSegmentXhr=xhr(initSegmentOptions,initSegmentRequestCallback);activeXhrs.push(initSegmentXhr)}const segmentRequestOptions=merge(xhrOptions,{uri:segment.part&&segment.part.resolvedUri||segment.resolvedUri,responseType:"arraybuffer",headers:segmentXhrHeaders(segment)}),segmentXhr=xhr(segmentRequestOptions,handleSegmentResponse({segment:segment,finishProcessingFn:finishProcessingFn,responseType:segmentRequestOptions.responseType}));segmentXhr.addEventListener("progress",handleProgress({segment:segment,progressFn:progressFn,trackInfoFn:trackInfoFn,timingInfoFn:timingInfoFn,videoSegmentTimingInfoFn:videoSegmentTimingInfoFn,audioSegmentTimingInfoFn:audioSegmentTimingInfoFn,id3Fn:id3Fn,captionsFn:captionsFn,isEndOfTimeline:isEndOfTimeline,endedTimelineFn:endedTimelineFn,dataFn:dataFn})),activeXhrs.push(segmentXhr);const loadendState={};return activeXhrs.forEach((activeXhr=>{activeXhr.addEventListener("loadend",(_ref56=>{let{loadendState:loadendState,abortFn:abortFn}=_ref56;return event=>{event.target.aborted&&abortFn&&!loadendState.calledAbortFn&&(abortFn(),loadendState.calledAbortFn=!0)}})({loadendState:loadendState,abortFn:abortFn}))})),()=>abortAll(activeXhrs)},logFn$1=logger("CodecUtils"),isMaat=(main,media)=>{const mediaAttributes=media.attributes||{};return main&&main.mediaGroups&&main.mediaGroups.AUDIO&&mediaAttributes.AUDIO&&main.mediaGroups.AUDIO[mediaAttributes.AUDIO]},unwrapCodecList=function(codecList){const codecs={};return codecList.forEach((_ref59=>{let{mediaType:mediaType,type:type,details:details}=_ref59;codecs[mediaType]=codecs[mediaType]||[],codecs[mediaType].push(translateLegacyCodec("".concat(type).concat(details)))})),Object.keys(codecs).forEach((function(mediaType){if(codecs[mediaType].length>1)return logFn$1("multiple ".concat(mediaType," codecs found as attributes: ").concat(codecs[mediaType].join(", "),". Setting playlist codecs to null so that we wait for mux.js to probe segments for real codecs.")),void(codecs[mediaType]=null);codecs[mediaType]=codecs[mediaType][0]})),codecs},codecCount=function(codecObj){let count=0;return codecObj.audio&&count++,codecObj.video&&count++,count},codecsForPlaylist=function(main,media){const mediaAttributes=media.attributes||{},codecInfo=unwrapCodecList(function(media){const mediaAttributes=media.attributes||{};if(mediaAttributes.CODECS)return parseCodecs(mediaAttributes.CODECS)}(media)||[]);if(isMaat(main,media)&&!codecInfo.audio&&!((main,media)=>{if(!isMaat(main,media))return!0;const mediaAttributes=media.attributes||{},audioGroup=main.mediaGroups.AUDIO[mediaAttributes.AUDIO];for(const groupId in audioGroup)if(!audioGroup[groupId].uri&&!audioGroup[groupId].playlists)return!0;return!1})(main,media)){const defaultCodecs=unwrapCodecList(function(master,audioGroupId){if(!master.mediaGroups.AUDIO||!audioGroupId)return null;var audioGroup=master.mediaGroups.AUDIO[audioGroupId];if(!audioGroup)return null;for(var name in audioGroup){var audioType=audioGroup[name];if(audioType.default&&audioType.playlists)return parseCodecs(audioType.playlists[0].attributes.CODECS)}return null}(main,mediaAttributes.AUDIO)||[]);defaultCodecs.audio&&(codecInfo.audio=defaultCodecs.audio)}return codecInfo},logFn=logger("PlaylistSelector"),representationToString=function(representation){if(!representation||!representation.playlist)return;const playlist=representation.playlist;return JSON.stringify({id:playlist.id,bandwidth:representation.bandwidth,width:representation.width,height:representation.height,codecs:playlist.attributes&&playlist.attributes.CODECS||""})},safeGetComputedStyle=function(el,property){if(!el)return"";const result=window.getComputedStyle(el);return result?result[property]:""},stableSort=function(array,sortFn){const newArray=array.slice();array.sort((function(left,right){const cmp=sortFn(left,right);return 0===cmp?newArray.indexOf(left)-newArray.indexOf(right):cmp}))},comparePlaylistBandwidth=function(left,right){let leftBandwidth,rightBandwidth;return left.attributes.BANDWIDTH&&(leftBandwidth=left.attributes.BANDWIDTH),leftBandwidth=leftBandwidth||window.Number.MAX_VALUE,right.attributes.BANDWIDTH&&(rightBandwidth=right.attributes.BANDWIDTH),rightBandwidth=rightBandwidth||window.Number.MAX_VALUE,leftBandwidth-rightBandwidth};let simpleSelector=function(main,playerBandwidth,playerWidth,playerHeight,limitRenditionByPlayerDimensions,playlistController){if(!main)return;const options={bandwidth:playerBandwidth,width:playerWidth,height:playerHeight,limitRenditionByPlayerDimensions:limitRenditionByPlayerDimensions};let playlists=main.playlists;Playlist.isAudioOnly(main)&&(playlists=playlistController.getAudioTrackPlaylists_(),options.audioOnly=!0);let sortedPlaylistReps=playlists.map((playlist=>{let bandwidth;const width=playlist.attributes&&playlist.attributes.RESOLUTION&&playlist.attributes.RESOLUTION.width,height=playlist.attributes&&playlist.attributes.RESOLUTION&&playlist.attributes.RESOLUTION.height;return bandwidth=playlist.attributes&&playlist.attributes.BANDWIDTH,bandwidth=bandwidth||window.Number.MAX_VALUE,{bandwidth:bandwidth,width:width,height:height,playlist:playlist}}));stableSort(sortedPlaylistReps,((left,right)=>left.bandwidth-right.bandwidth)),sortedPlaylistReps=sortedPlaylistReps.filter((rep=>!Playlist.isIncompatible(rep.playlist)));let enabledPlaylistReps=sortedPlaylistReps.filter((rep=>Playlist.isEnabled(rep.playlist)));enabledPlaylistReps.length||(enabledPlaylistReps=sortedPlaylistReps.filter((rep=>!Playlist.isDisabled(rep.playlist))));const bandwidthPlaylistReps=enabledPlaylistReps.filter((rep=>rep.bandwidth*Config.BANDWIDTH_VARIANCE<playerBandwidth));let highestRemainingBandwidthRep=bandwidthPlaylistReps[bandwidthPlaylistReps.length-1];const bandwidthBestRep=bandwidthPlaylistReps.filter((rep=>rep.bandwidth===highestRemainingBandwidthRep.bandwidth))[0];if(!1===limitRenditionByPlayerDimensions){const chosenRep=bandwidthBestRep||enabledPlaylistReps[0]||sortedPlaylistReps[0];if(chosenRep&&chosenRep.playlist){let type="sortedPlaylistReps";return bandwidthBestRep&&(type="bandwidthBestRep"),enabledPlaylistReps[0]&&(type="enabledPlaylistReps"),logFn("choosing ".concat(representationToString(chosenRep)," using ").concat(type," with options"),options),chosenRep.playlist}return logFn("could not choose a playlist with options",options),null}const haveResolution=bandwidthPlaylistReps.filter((rep=>rep.width&&rep.height));stableSort(haveResolution,((left,right)=>left.width-right.width));const resolutionBestRepList=haveResolution.filter((rep=>rep.width===playerWidth&&rep.height===playerHeight));highestRemainingBandwidthRep=resolutionBestRepList[resolutionBestRepList.length-1];const resolutionBestRep=resolutionBestRepList.filter((rep=>rep.bandwidth===highestRemainingBandwidthRep.bandwidth))[0];let resolutionPlusOneList,resolutionPlusOneSmallest,resolutionPlusOneRep,leastPixelDiffRep;if(resolutionBestRep||(resolutionPlusOneList=haveResolution.filter((rep=>rep.width>playerWidth||rep.height>playerHeight)),resolutionPlusOneSmallest=resolutionPlusOneList.filter((rep=>rep.width===resolutionPlusOneList[0].width&&rep.height===resolutionPlusOneList[0].height)),highestRemainingBandwidthRep=resolutionPlusOneSmallest[resolutionPlusOneSmallest.length-1],resolutionPlusOneRep=resolutionPlusOneSmallest.filter((rep=>rep.bandwidth===highestRemainingBandwidthRep.bandwidth))[0]),playlistController.leastPixelDiffSelector){const leastPixelDiffList=haveResolution.map((rep=>(rep.pixelDiff=Math.abs(rep.width-playerWidth)+Math.abs(rep.height-playerHeight),rep)));stableSort(leastPixelDiffList,((left,right)=>left.pixelDiff===right.pixelDiff?right.bandwidth-left.bandwidth:left.pixelDiff-right.pixelDiff)),leastPixelDiffRep=leastPixelDiffList[0]}const chosenRep=leastPixelDiffRep||resolutionPlusOneRep||resolutionBestRep||bandwidthBestRep||enabledPlaylistReps[0]||sortedPlaylistReps[0];if(chosenRep&&chosenRep.playlist){let type="sortedPlaylistReps";return leastPixelDiffRep?type="leastPixelDiffRep":resolutionPlusOneRep?type="resolutionPlusOneRep":resolutionBestRep?type="resolutionBestRep":bandwidthBestRep?type="bandwidthBestRep":enabledPlaylistReps[0]&&(type="enabledPlaylistReps"),logFn("choosing ".concat(representationToString(chosenRep)," using ").concat(type," with options"),options),chosenRep.playlist}return logFn("could not choose a playlist with options",options),null};const lastBandwidthSelector=function(){const pixelRatio=this.useDevicePixelRatio&&window.devicePixelRatio||1;return simpleSelector(this.playlists.main,this.systemBandwidth,parseInt(safeGetComputedStyle(this.tech_.el(),"width"),10)*pixelRatio,parseInt(safeGetComputedStyle(this.tech_.el(),"height"),10)*pixelRatio,this.limitRenditionByPlayerDimensions,this.playlistController_)},addMetadata=_ref61=>{let{inbandTextTracks:inbandTextTracks,metadataArray:metadataArray,timestampOffset:timestampOffset,videoDuration:videoDuration}=_ref61;if(!metadataArray)return;const Cue=window.WebKitDataCue||window.VTTCue,metadataTrack=inbandTextTracks.metadataTrack_;if(!metadataTrack)return;if(metadataArray.forEach((metadata=>{const time=metadata.cueTime+timestampOffset;!("number"!=typeof time||window.isNaN(time)||time<0)&&time<1/0&&metadata.frames.forEach((frame=>{const cue=new Cue(time,time,frame.value||frame.url||frame.data||"");cue.frame=frame,cue.value=frame,function(cue){Object.defineProperties(cue.frame,{id:{get:()=>(videojs.log.warn("cue.frame.id is deprecated. Use cue.value.key instead."),cue.value.key)},value:{get:()=>(videojs.log.warn("cue.frame.value is deprecated. Use cue.value.data instead."),cue.value.data)},privateData:{get:()=>(videojs.log.warn("cue.frame.privateData is deprecated. Use cue.value.data instead."),cue.value.data)}})}(cue),metadataTrack.addCue(cue)}))})),!metadataTrack.cues||!metadataTrack.cues.length)return;const cues=metadataTrack.cues,cuesArray=[];for(let i=0;i<cues.length;i++)cues[i]&&cuesArray.push(cues[i]);const cuesGroupedByStartTime=cuesArray.reduce(((obj,cue)=>{const timeSlot=obj[cue.startTime]||[];return timeSlot.push(cue),obj[cue.startTime]=timeSlot,obj}),{}),sortedStartTimes=Object.keys(cuesGroupedByStartTime).sort(((a,b)=>Number(a)-Number(b)));sortedStartTimes.forEach(((startTime,idx)=>{const cueGroup=cuesGroupedByStartTime[startTime],nextTime=Number(sortedStartTimes[idx+1])||videoDuration;cueGroup.forEach((cue=>{cue.endTime=nextTime}))}))},removeCuesFromTrack=function(start,end,track){let i,cue;if(track&&track.cues)for(i=track.cues.length;i--;)cue=track.cues[i],cue.startTime>=start&&cue.endTime<=end&&track.removeCue(cue)},finite=num=>"number"==typeof num&&isFinite(num),segmentInfoString=segmentInfo=>{const{startOfSegment:startOfSegment,duration:duration,segment:segment,part:part,playlist:{mediaSequence:seq,id:id,segments:segments=[]},mediaIndex:index,partIndex:partIndex,timeline:timeline}=segmentInfo,segmentLen=segments.length-1;let selection="mediaIndex/partIndex increment";segmentInfo.getMediaInfoForTime?selection="getMediaInfoForTime (".concat(segmentInfo.getMediaInfoForTime,")"):segmentInfo.isSyncRequest&&(selection="getSyncSegmentCandidate (isSyncRequest)"),segmentInfo.independent&&(selection+=" with independent ".concat(segmentInfo.independent));const hasPartIndex="number"==typeof partIndex,name=segmentInfo.segment.uri?"segment":"pre-segment",zeroBasedPartCount=hasPartIndex?getKnownPartCount({preloadSegment:segment})-1:0;return"".concat(name," [").concat(seq+index,"/").concat(seq+segmentLen,"]")+(hasPartIndex?" part [".concat(partIndex,"/").concat(zeroBasedPartCount,"]"):"")+" segment start/end [".concat(segment.start," => ").concat(segment.end,"]")+(hasPartIndex?" part start/end [".concat(part.start," => ").concat(part.end,"]"):"")+" startOfSegment [".concat(startOfSegment,"]")+" duration [".concat(duration,"]")+" timeline [".concat(timeline,"]")+" selected by [".concat(selection,"]")+" playlist [".concat(id,"]")},timingInfoPropertyForMedia=mediaType=>"".concat(mediaType,"TimingInfo"),shouldWaitForTimelineChange=_ref63=>{let{timelineChangeController:timelineChangeController,currentTimeline:currentTimeline,segmentTimeline:segmentTimeline,loaderType:loaderType,audioDisabled:audioDisabled}=_ref63;if(currentTimeline===segmentTimeline)return!1;if("audio"===loaderType){const lastMainTimelineChange=timelineChangeController.lastTimelineChange({type:"main"});return!lastMainTimelineChange||lastMainTimelineChange.to!==segmentTimeline}if("main"===loaderType&&audioDisabled){const pendingAudioTimelineChange=timelineChangeController.pendingTimelineChange({type:"audio"});return!pendingAudioTimelineChange||pendingAudioTimelineChange.to!==segmentTimeline}return!1},segmentTooLong=_ref64=>{let{segmentDuration:segmentDuration,maxDuration:maxDuration}=_ref64;return!!segmentDuration&&Math.round(segmentDuration)>maxDuration+.03333333333333333},getTroublesomeSegmentDurationMessage=(segmentInfo,sourceType)=>{if("hls"!==sourceType)return null;const segmentDuration=(timingInfos=>{let maxDuration=0;return["video","audio"].forEach((function(type){const typeTimingInfo=timingInfos["".concat(type,"TimingInfo")];if(!typeTimingInfo)return;const{start:start,end:end}=typeTimingInfo;let duration;"bigint"==typeof start||"bigint"==typeof end?duration=window.BigInt(end)-window.BigInt(start):"number"==typeof start&&"number"==typeof end&&(duration=end-start),void 0!==duration&&duration>maxDuration&&(maxDuration=duration)})),"bigint"==typeof maxDuration&&maxDuration<Number.MAX_SAFE_INTEGER&&(maxDuration=Number(maxDuration)),maxDuration})({audioTimingInfo:segmentInfo.audioTimingInfo,videoTimingInfo:segmentInfo.videoTimingInfo});if(!segmentDuration)return null;const targetDuration=segmentInfo.playlist.targetDuration,isSegmentWayTooLong=segmentTooLong({segmentDuration:segmentDuration,maxDuration:2*targetDuration}),isSegmentSlightlyTooLong=segmentTooLong({segmentDuration:segmentDuration,maxDuration:targetDuration}),segmentTooLongMessage="Segment with index ".concat(segmentInfo.mediaIndex," ")+"from playlist ".concat(segmentInfo.playlist.id," ")+"has a duration of ".concat(segmentDuration," ")+"when the reported duration is ".concat(segmentInfo.duration," ")+"and the target duration is ".concat(targetDuration,". ")+"For HLS content, a duration in excess of the target duration may result in playback issues. See the HLS specification section on EXT-X-TARGETDURATION for more details: https://tools.ietf.org/html/draft-pantos-http-live-streaming-23#section-4.3.3.1";return isSegmentWayTooLong||isSegmentSlightlyTooLong?{severity:isSegmentWayTooLong?"warn":"info",message:segmentTooLongMessage}:null};class SegmentLoader extends videojs.EventTarget{constructor(settings){if(super(),!settings)throw new TypeError("Initialization settings are required");if("function"!=typeof settings.currentTime)throw new TypeError("No currentTime getter specified");if(!settings.mediaSource)throw new TypeError("No MediaSource specified");this.bandwidth=settings.bandwidth,this.throughput={rate:0,count:0},this.roundTrip=NaN,this.resetStats_(),this.mediaIndex=null,this.partIndex=null,this.hasPlayed_=settings.hasPlayed,this.currentTime_=settings.currentTime,this.seekable_=settings.seekable,this.seeking_=settings.seeking,this.duration_=settings.duration,this.mediaSource_=settings.mediaSource,this.vhs_=settings.vhs,this.loaderType_=settings.loaderType,this.currentMediaInfo_=void 0,this.startingMediaInfo_=void 0,this.segmentMetadataTrack_=settings.segmentMetadataTrack,this.goalBufferLength_=settings.goalBufferLength,this.sourceType_=settings.sourceType,this.sourceUpdater_=settings.sourceUpdater,this.inbandTextTracks_=settings.inbandTextTracks,this.state_="INIT",this.timelineChangeController_=settings.timelineChangeController,this.shouldSaveSegmentTimingInfo_=!0,this.parse708captions_=settings.parse708captions,this.useDtsForTimestampOffset_=settings.useDtsForTimestampOffset,this.captionServices_=settings.captionServices,this.exactManifestTimings=settings.exactManifestTimings,this.checkBufferTimeout_=null,this.error_=void 0,this.currentTimeline_=-1,this.pendingSegment_=null,this.xhrOptions_=null,this.pendingSegments_=[],this.audioDisabled_=!1,this.isPendingTimestampOffset_=!1,this.gopBuffer_=[],this.timeMapping_=0,this.safeAppend_=videojs.browser.IE_VERSION>=11,this.appendInitSegment_={audio:!0,video:!0},this.playlistOfLastInitSegment_={audio:null,video:null},this.callQueue_=[],this.loadQueue_=[],this.metadataQueue_={id3:[],caption:[]},this.waitingOnRemove_=!1,this.quotaExceededErrorRetryTimeout_=null,this.activeInitSegmentId_=null,this.initSegments_={},this.cacheEncryptionKeys_=settings.cacheEncryptionKeys,this.keyCache_={},this.decrypter_=settings.decrypter,this.syncController_=settings.syncController,this.syncPoint_={segmentIndex:0,time:0},this.transmuxer_=this.createTransmuxer_(),this.triggerSyncInfoUpdate_=()=>this.trigger("syncinfoupdate"),this.syncController_.on("syncinfoupdate",this.triggerSyncInfoUpdate_),this.mediaSource_.addEventListener("sourceopen",(()=>{this.isEndOfStream_()||(this.ended_=!1)})),this.fetchAtBuffer_=!1,this.logger_=logger("SegmentLoader[".concat(this.loaderType_,"]")),Object.defineProperty(this,"state",{get(){return this.state_},set(newState){newState!==this.state_&&(this.logger_("".concat(this.state_," -> ").concat(newState)),this.state_=newState,this.trigger("statechange"))}}),this.sourceUpdater_.on("ready",(()=>{this.hasEnoughInfoToAppend_()&&this.processCallQueue_()})),"main"===this.loaderType_&&this.timelineChangeController_.on("pendingtimelinechange",(()=>{this.hasEnoughInfoToAppend_()&&this.processCallQueue_()})),"audio"===this.loaderType_&&this.timelineChangeController_.on("timelinechange",(()=>{this.hasEnoughInfoToLoad_()&&this.processLoadQueue_(),this.hasEnoughInfoToAppend_()&&this.processCallQueue_()}))}createTransmuxer_(){return segmentTransmuxer_createTransmuxer({remux:!1,alignGopsAtEnd:this.safeAppend_,keepOriginalTimestamps:!0,parse708captions:this.parse708captions_,captionServices:this.captionServices_})}resetStats_(){this.mediaBytesTransferred=0,this.mediaRequests=0,this.mediaRequestsAborted=0,this.mediaRequestsTimedout=0,this.mediaRequestsErrored=0,this.mediaTransferDuration=0,this.mediaSecondsLoaded=0,this.mediaAppends=0}dispose(){this.trigger("dispose"),this.state="DISPOSED",this.pause(),this.abort_(),this.transmuxer_&&this.transmuxer_.terminate(),this.resetStats_(),this.checkBufferTimeout_&&window.clearTimeout(this.checkBufferTimeout_),this.syncController_&&this.triggerSyncInfoUpdate_&&this.syncController_.off("syncinfoupdate",this.triggerSyncInfoUpdate_),this.off()}setAudio(enable){this.audioDisabled_=!enable,enable?this.appendInitSegment_.audio=!0:this.sourceUpdater_.removeAudio(0,this.duration_())}abort(){"WAITING"===this.state?(this.abort_(),this.state="READY",this.paused()||this.monitorBuffer_()):this.pendingSegment_&&(this.pendingSegment_=null)}abort_(){this.pendingSegment_&&this.pendingSegment_.abortRequests&&this.pendingSegment_.abortRequests(),this.pendingSegment_=null,this.callQueue_=[],this.loadQueue_=[],this.metadataQueue_.id3=[],this.metadataQueue_.caption=[],this.timelineChangeController_.clearPendingTimelineChange(this.loaderType_),this.waitingOnRemove_=!1,window.clearTimeout(this.quotaExceededErrorRetryTimeout_),this.quotaExceededErrorRetryTimeout_=null}checkForAbort_(requestId){return"APPENDING"!==this.state||this.pendingSegment_?!this.pendingSegment_||this.pendingSegment_.requestId!==requestId:(this.state="READY",!0)}error(error){return void 0!==error&&(this.logger_("error occurred:",error),this.error_=error),this.pendingSegment_=null,this.error_}endOfStream(){this.ended_=!0,this.transmuxer_&&segmentTransmuxer_reset(this.transmuxer_),this.gopBuffer_.length=0,this.pause(),this.trigger("ended")}buffered_(){const trackInfo=this.getMediaInfo_();if(!this.sourceUpdater_||!trackInfo)return createTimeRanges();if("main"===this.loaderType_){const{hasAudio:hasAudio,hasVideo:hasVideo,isMuxed:isMuxed}=trackInfo;if(hasVideo&&hasAudio&&!this.audioDisabled_&&!isMuxed)return this.sourceUpdater_.buffered();if(hasVideo)return this.sourceUpdater_.videoBuffered()}return this.sourceUpdater_.audioBuffered()}initSegmentForMap(map){let set=arguments.length>1&&void 0!==arguments[1]&&arguments[1];if(!map)return null;const id=initSegmentId(map);let storedMap=this.initSegments_[id];return set&&!storedMap&&map.bytes&&(this.initSegments_[id]=storedMap={resolvedUri:map.resolvedUri,byterange:map.byterange,bytes:map.bytes,tracks:map.tracks,timescales:map.timescales}),storedMap||map}segmentKey(key){let set=arguments.length>1&&void 0!==arguments[1]&&arguments[1];if(!key)return null;const id=segmentKeyId(key);let storedKey=this.keyCache_[id];this.cacheEncryptionKeys_&&set&&!storedKey&&key.bytes&&(this.keyCache_[id]=storedKey={resolvedUri:key.resolvedUri,bytes:key.bytes});const result={resolvedUri:(storedKey||key).resolvedUri};return storedKey&&(result.bytes=storedKey.bytes),result}couldBeginLoading_(){return this.playlist_&&!this.paused()}load(){if(this.monitorBuffer_(),this.playlist_)return"INIT"===this.state&&this.couldBeginLoading_()?this.init_():void(!this.couldBeginLoading_()||"READY"!==this.state&&"INIT"!==this.state||(this.state="READY"))}init_(){return this.state="READY",this.resetEverything(),this.monitorBuffer_()}playlist(newPlaylist){let options=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};if(!newPlaylist)return;const oldPlaylist=this.playlist_,segmentInfo=this.pendingSegment_;this.playlist_=newPlaylist,this.xhrOptions_=options,"INIT"===this.state&&(newPlaylist.syncInfo={mediaSequence:newPlaylist.mediaSequence,time:0},"main"===this.loaderType_&&this.syncController_.setDateTimeMappingForStart(newPlaylist));let oldId=null;if(oldPlaylist&&(oldPlaylist.id?oldId=oldPlaylist.id:oldPlaylist.uri&&(oldId=oldPlaylist.uri)),this.logger_("playlist update [".concat(oldId," => ").concat(newPlaylist.id||newPlaylist.uri,"]")),this.trigger("syncinfoupdate"),"INIT"===this.state&&this.couldBeginLoading_())return this.init_();if(!oldPlaylist||oldPlaylist.uri!==newPlaylist.uri)return null!==this.mediaIndex&&(newPlaylist.endList?this.resyncLoader():this.resetLoader()),this.currentMediaInfo_=void 0,void this.trigger("playlistupdate");const mediaSequenceDiff=newPlaylist.mediaSequence-oldPlaylist.mediaSequence;if(this.logger_("live window shift [".concat(mediaSequenceDiff,"]")),null!==this.mediaIndex)if(this.mediaIndex-=mediaSequenceDiff,this.mediaIndex<0)this.mediaIndex=null,this.partIndex=null;else{const segment=this.playlist_.segments[this.mediaIndex];if(this.partIndex&&(!segment.parts||!segment.parts.length||!segment.parts[this.partIndex])){const mediaIndex=this.mediaIndex;this.logger_("currently processing part (index ".concat(this.partIndex,") no longer exists.")),this.resetLoader(),this.mediaIndex=mediaIndex}}segmentInfo&&(segmentInfo.mediaIndex-=mediaSequenceDiff,segmentInfo.mediaIndex<0?(segmentInfo.mediaIndex=null,segmentInfo.partIndex=null):(segmentInfo.mediaIndex>=0&&(segmentInfo.segment=newPlaylist.segments[segmentInfo.mediaIndex]),segmentInfo.partIndex>=0&&segmentInfo.segment.parts&&(segmentInfo.part=segmentInfo.segment.parts[segmentInfo.partIndex]))),this.syncController_.saveExpiredSegmentInfo(oldPlaylist,newPlaylist)}pause(){this.checkBufferTimeout_&&(window.clearTimeout(this.checkBufferTimeout_),this.checkBufferTimeout_=null)}paused(){return null===this.checkBufferTimeout_}resetEverything(done){this.ended_=!1,this.activeInitSegmentId_=null,this.appendInitSegment_={audio:!0,video:!0},this.resetLoader(),this.remove(0,1/0,done),this.transmuxer_&&(this.transmuxer_.postMessage({action:"clearAllMp4Captions"}),this.transmuxer_.postMessage({action:"reset"}))}resetLoader(){this.fetchAtBuffer_=!1,this.resyncLoader()}resyncLoader(){this.transmuxer_&&segmentTransmuxer_reset(this.transmuxer_),this.mediaIndex=null,this.partIndex=null,this.syncPoint_=null,this.isPendingTimestampOffset_=!1,this.callQueue_=[],this.loadQueue_=[],this.metadataQueue_.id3=[],this.metadataQueue_.caption=[],this.abort(),this.transmuxer_&&this.transmuxer_.postMessage({action:"clearParsedMp4Captions"})}remove(start,end){let done=arguments.length>2&&void 0!==arguments[2]?arguments[2]:()=>{},force=arguments.length>3&&void 0!==arguments[3]&&arguments[3];if(end===1/0&&(end=this.duration_()),end<=start)return void this.logger_("skipping remove because end ${end} is <= start ${start}");if(!this.sourceUpdater_||!this.getMediaInfo_())return void this.logger_("skipping remove because no source updater or starting media info");let removesRemaining=1;const removeFinished=()=>{removesRemaining--,0===removesRemaining&&done()};!force&&this.audioDisabled_||(removesRemaining++,this.sourceUpdater_.removeAudio(start,end,removeFinished)),(force||"main"===this.loaderType_)&&(this.gopBuffer_=((buffer,start,end,mapping)=>{const startPts=Math.ceil((start-mapping)*clock_1),endPts=Math.ceil((end-mapping)*clock_1),updatedBuffer=buffer.slice();let i=buffer.length;for(;i--&&!(buffer[i].pts<=endPts););if(-1===i)return updatedBuffer;let j=i+1;for(;j--&&!(buffer[j].pts<=startPts););return j=Math.max(j,0),updatedBuffer.splice(j,i-j+1),updatedBuffer})(this.gopBuffer_,start,end,this.timeMapping_),removesRemaining++,this.sourceUpdater_.removeVideo(start,end,removeFinished));for(const track in this.inbandTextTracks_)removeCuesFromTrack(start,end,this.inbandTextTracks_[track]);removeCuesFromTrack(start,end,this.segmentMetadataTrack_),removeFinished()}monitorBuffer_(){this.checkBufferTimeout_&&window.clearTimeout(this.checkBufferTimeout_),this.checkBufferTimeout_=window.setTimeout(this.monitorBufferTick_.bind(this),1)}monitorBufferTick_(){"READY"===this.state&&this.fillBuffer_(),this.checkBufferTimeout_&&window.clearTimeout(this.checkBufferTimeout_),this.checkBufferTimeout_=window.setTimeout(this.monitorBufferTick_.bind(this),500)}fillBuffer_(){if(this.sourceUpdater_.updating())return;const segmentInfo=this.chooseNextRequest_();segmentInfo&&("number"==typeof segmentInfo.timestampOffset&&(this.isPendingTimestampOffset_=!1,this.timelineChangeController_.pendingTimelineChange({type:this.loaderType_,from:this.currentTimeline_,to:segmentInfo.timeline})),this.loadSegment_(segmentInfo))}isEndOfStream_(){let mediaIndex=arguments.length>0&&void 0!==arguments[0]?arguments[0]:this.mediaIndex,playlist=arguments.length>1&&void 0!==arguments[1]?arguments[1]:this.playlist_,partIndex=arguments.length>2&&void 0!==arguments[2]?arguments[2]:this.partIndex;if(!playlist||!this.mediaSource_)return!1;const segment="number"==typeof mediaIndex&&playlist.segments[mediaIndex],appendedLastSegment=mediaIndex+1===playlist.segments.length,appendedLastPart=!segment||!segment.parts||partIndex+1===segment.parts.length;return playlist.endList&&"open"===this.mediaSource_.readyState&&appendedLastSegment&&appendedLastPart}chooseNextRequest_(){const buffered=this.buffered_(),bufferedEnd=lastBufferedEnd(buffered)||0,bufferedTime=timeAheadOf(buffered,this.currentTime_()),preloaded=!this.hasPlayed_()&&bufferedTime>=1,haveEnoughBuffer=bufferedTime>=this.goalBufferLength_(),segments=this.playlist_.segments;if(!segments.length||preloaded||haveEnoughBuffer)return null;this.syncPoint_=this.syncPoint_||this.syncController_.getSyncPoint(this.playlist_,this.duration_(),this.currentTimeline_,this.currentTime_());const next={partIndex:null,mediaIndex:null,startOfSegment:null,playlist:this.playlist_,isSyncRequest:Boolean(!this.syncPoint_)};if(next.isSyncRequest)next.mediaIndex=function(currentTimeline,segments,targetTime){segments=segments||[];const timelineSegments=[];let time=0;for(let i=0;i<segments.length;i++){const segment=segments[i];if(currentTimeline===segment.timeline&&(timelineSegments.push(i),time+=segment.duration,time>targetTime))return i}return 0===timelineSegments.length?0:timelineSegments[timelineSegments.length-1]}(this.currentTimeline_,segments,bufferedEnd);else if(null!==this.mediaIndex){const segment=segments[this.mediaIndex],partIndex="number"==typeof this.partIndex?this.partIndex:-1;next.startOfSegment=segment.end?segment.end:bufferedEnd,segment.parts&&segment.parts[partIndex+1]?(next.mediaIndex=this.mediaIndex,next.partIndex=partIndex+1):next.mediaIndex=this.mediaIndex+1}else{const{segmentIndex:segmentIndex,startTime:startTime,partIndex:partIndex}=Playlist.getMediaInfoForTime({exactManifestTimings:this.exactManifestTimings,playlist:this.playlist_,currentTime:this.fetchAtBuffer_?bufferedEnd:this.currentTime_(),startingPartIndex:this.syncPoint_.partIndex,startingSegmentIndex:this.syncPoint_.segmentIndex,startTime:this.syncPoint_.time});next.getMediaInfoForTime=this.fetchAtBuffer_?"bufferedEnd ".concat(bufferedEnd):"currentTime ".concat(this.currentTime_()),next.mediaIndex=segmentIndex,next.startOfSegment=startTime,next.partIndex=partIndex}const nextSegment=segments[next.mediaIndex];let nextPart=nextSegment&&"number"==typeof next.partIndex&&nextSegment.parts&&nextSegment.parts[next.partIndex];if(!nextSegment||"number"==typeof next.partIndex&&!nextPart)return null;if("number"!=typeof next.partIndex&&nextSegment.parts&&(next.partIndex=0,nextPart=nextSegment.parts[0]),!bufferedTime&&nextPart&&!nextPart.independent)if(0===next.partIndex){const lastSegment=segments[next.mediaIndex-1],lastSegmentLastPart=lastSegment.parts&&lastSegment.parts.length&&lastSegment.parts[lastSegment.parts.length-1];lastSegmentLastPart&&lastSegmentLastPart.independent&&(next.mediaIndex-=1,next.partIndex=lastSegment.parts.length-1,next.independent="previous segment")}else nextSegment.parts[next.partIndex-1].independent&&(next.partIndex-=1,next.independent="previous part");const ended=this.mediaSource_&&"ended"===this.mediaSource_.readyState;return next.mediaIndex>=segments.length-1&&ended&&!this.seeking_()?null:this.generateSegmentInfo_(next)}generateSegmentInfo_(options){const{independent:independent,playlist:playlist,mediaIndex:mediaIndex,startOfSegment:startOfSegment,isSyncRequest:isSyncRequest,partIndex:partIndex,forceTimestampOffset:forceTimestampOffset,getMediaInfoForTime:getMediaInfoForTime}=options,segment=playlist.segments[mediaIndex],part="number"==typeof partIndex&&segment.parts[partIndex],segmentInfo={requestId:"segment-loader-"+Math.random(),uri:part&&part.resolvedUri||segment.resolvedUri,mediaIndex:mediaIndex,partIndex:part?partIndex:null,isSyncRequest:isSyncRequest,startOfSegment:startOfSegment,playlist:playlist,bytes:null,encryptedBytes:null,timestampOffset:null,timeline:segment.timeline,duration:part&&part.duration||segment.duration,segment:segment,part:part,byteLength:0,transmuxer:this.transmuxer_,getMediaInfoForTime:getMediaInfoForTime,independent:independent},overrideCheck=void 0!==forceTimestampOffset?forceTimestampOffset:this.isPendingTimestampOffset_;segmentInfo.timestampOffset=this.timestampOffsetForSegment_({segmentTimeline:segment.timeline,currentTimeline:this.currentTimeline_,startOfSegment:startOfSegment,buffered:this.buffered_(),overrideCheck:overrideCheck});const audioBufferedEnd=lastBufferedEnd(this.sourceUpdater_.audioBuffered());return"number"==typeof audioBufferedEnd&&(segmentInfo.audioAppendStart=audioBufferedEnd-this.sourceUpdater_.audioTimestampOffset()),this.sourceUpdater_.videoBuffered().length&&(segmentInfo.gopsToAlignWith=((buffer,currentTime,mapping)=>{if(null==currentTime||!buffer.length)return[];const currentTimePts=Math.ceil((currentTime-mapping+3)*clock_1);let i;for(i=0;i<buffer.length&&!(buffer[i].pts>currentTimePts);i++);return buffer.slice(i)})(this.gopBuffer_,this.currentTime_()-this.sourceUpdater_.videoTimestampOffset(),this.timeMapping_)),segmentInfo}timestampOffsetForSegment_(options){return(_ref62=>{let{segmentTimeline:segmentTimeline,currentTimeline:currentTimeline,startOfSegment:startOfSegment,buffered:buffered,overrideCheck:overrideCheck}=_ref62;return overrideCheck||segmentTimeline!==currentTimeline?segmentTimeline<currentTimeline?startOfSegment:buffered.length?buffered.end(buffered.length-1):startOfSegment:null})(options)}earlyAbortWhenNeeded_(stats){if(this.vhs_.tech_.paused()||!this.xhrOptions_.timeout||!this.playlist_.attributes.BANDWIDTH)return;if(Date.now()-(stats.firstBytesReceivedAt||Date.now())<1e3)return;const currentTime=this.currentTime_(),measuredBandwidth=stats.bandwidth,segmentDuration=this.pendingSegment_.duration,requestTimeRemaining=Playlist.estimateSegmentRequestTime(segmentDuration,measuredBandwidth,this.playlist_,stats.bytesReceived),timeUntilRebuffer$1=function(buffered,currentTime){let playbackRate=arguments.length>2&&void 0!==arguments[2]?arguments[2]:1;return((buffered.length?buffered.end(buffered.length-1):0)-currentTime)/playbackRate}(this.buffered_(),currentTime,this.vhs_.tech_.playbackRate())-1;if(requestTimeRemaining<=timeUntilRebuffer$1)return;const switchCandidate=function(settings){const{main:main,currentTime:currentTime,bandwidth:bandwidth,duration:duration,segmentDuration:segmentDuration,timeUntilRebuffer:timeUntilRebuffer,currentTimeline:currentTimeline,syncController:syncController}=settings,compatiblePlaylists=main.playlists.filter((playlist=>!Playlist.isIncompatible(playlist)));let enabledPlaylists=compatiblePlaylists.filter(Playlist.isEnabled);enabledPlaylists.length||(enabledPlaylists=compatiblePlaylists.filter((playlist=>!Playlist.isDisabled(playlist))));const rebufferingEstimates=enabledPlaylists.filter(Playlist.hasAttribute.bind(null,"BANDWIDTH")).map((playlist=>{const numRequests=syncController.getSyncPoint(playlist,duration,currentTimeline,currentTime)?1:2;return{playlist:playlist,rebufferingImpact:Playlist.estimateSegmentRequestTime(segmentDuration,bandwidth,playlist)*numRequests-timeUntilRebuffer}})),noRebufferingPlaylists=rebufferingEstimates.filter((estimate=>estimate.rebufferingImpact<=0));return stableSort(noRebufferingPlaylists,((a,b)=>comparePlaylistBandwidth(b.playlist,a.playlist))),noRebufferingPlaylists.length?noRebufferingPlaylists[0]:(stableSort(rebufferingEstimates,((a,b)=>a.rebufferingImpact-b.rebufferingImpact)),rebufferingEstimates[0]||null)}({main:this.vhs_.playlists.main,currentTime:currentTime,bandwidth:measuredBandwidth,duration:this.duration_(),segmentDuration:segmentDuration,timeUntilRebuffer:timeUntilRebuffer$1,currentTimeline:this.currentTimeline_,syncController:this.syncController_});if(!switchCandidate)return;const timeSavedBySwitching=requestTimeRemaining-timeUntilRebuffer$1-switchCandidate.rebufferingImpact;let minimumTimeSaving=.5;timeUntilRebuffer$1<=.03333333333333333&&(minimumTimeSaving=1),!switchCandidate.playlist||switchCandidate.playlist.uri===this.playlist_.uri||timeSavedBySwitching<minimumTimeSaving||(this.bandwidth=switchCandidate.playlist.attributes.BANDWIDTH*Config.BANDWIDTH_VARIANCE+1,this.trigger("earlyabort"))}handleAbort_(segmentInfo){this.logger_("Aborting ".concat(segmentInfoString(segmentInfo))),this.mediaRequestsAborted+=1}handleProgress_(event,simpleSegment){this.earlyAbortWhenNeeded_(simpleSegment.stats),this.checkForAbort_(simpleSegment.requestId)||this.trigger("progress")}handleTrackInfo_(simpleSegment,trackInfo){this.earlyAbortWhenNeeded_(simpleSegment.stats),this.checkForAbort_(simpleSegment.requestId)||this.checkForIllegalMediaSwitch(trackInfo)||(trackInfo=trackInfo||{},function(a,b){if(!a&&!b||!a&&b||a&&!b)return!1;if(a===b)return!0;const akeys=Object.keys(a).sort(),bkeys=Object.keys(b).sort();if(akeys.length!==bkeys.length)return!1;for(let i=0;i<akeys.length;i++){const key=akeys[i];if(key!==bkeys[i])return!1;if(a[key]!==b[key])return!1}return!0}(this.currentMediaInfo_,trackInfo)||(this.appendInitSegment_={audio:!0,video:!0},this.startingMediaInfo_=trackInfo,this.currentMediaInfo_=trackInfo,this.logger_("trackinfo update",trackInfo),this.trigger("trackinfo")),this.checkForAbort_(simpleSegment.requestId)||(this.pendingSegment_.trackInfo=trackInfo,this.hasEnoughInfoToAppend_()&&this.processCallQueue_()))}handleTimingInfo_(simpleSegment,mediaType,timeType,time){if(this.earlyAbortWhenNeeded_(simpleSegment.stats),this.checkForAbort_(simpleSegment.requestId))return;const segmentInfo=this.pendingSegment_,timingInfoProperty=timingInfoPropertyForMedia(mediaType);segmentInfo[timingInfoProperty]=segmentInfo[timingInfoProperty]||{},segmentInfo[timingInfoProperty][timeType]=time,this.logger_("timinginfo: ".concat(mediaType," - ").concat(timeType," - ").concat(time)),this.hasEnoughInfoToAppend_()&&this.processCallQueue_()}handleCaptions_(simpleSegment,captionData){if(this.earlyAbortWhenNeeded_(simpleSegment.stats),this.checkForAbort_(simpleSegment.requestId))return;if(0===captionData.length)return void this.logger_("SegmentLoader received no captions from a caption event");if(!this.pendingSegment_.hasAppendedData_)return void this.metadataQueue_.caption.push(this.handleCaptions_.bind(this,simpleSegment,captionData));const timestampOffset=null===this.sourceUpdater_.videoTimestampOffset()?this.sourceUpdater_.audioTimestampOffset():this.sourceUpdater_.videoTimestampOffset(),captionTracks={};captionData.forEach((caption=>{captionTracks[caption.stream]=captionTracks[caption.stream]||{startTime:1/0,captions:[],endTime:0};const captionTrack=captionTracks[caption.stream];captionTrack.startTime=Math.min(captionTrack.startTime,caption.startTime+timestampOffset),captionTrack.endTime=Math.max(captionTrack.endTime,caption.endTime+timestampOffset),captionTrack.captions.push(caption)})),Object.keys(captionTracks).forEach((trackName=>{const{startTime:startTime,endTime:endTime,captions:captions}=captionTracks[trackName],inbandTextTracks=this.inbandTextTracks_;this.logger_("adding cues from ".concat(startTime," -> ").concat(endTime," for ").concat(trackName)),function(inbandTextTracks,tech,captionStream){if(!inbandTextTracks[captionStream]){tech.trigger({type:"usage",name:"vhs-608"});let instreamId=captionStream;/^cc708_/.test(captionStream)&&(instreamId="SERVICE"+captionStream.split("_")[1]);const track=tech.textTracks().getTrackById(instreamId);if(track)inbandTextTracks[captionStream]=track;else{let label=captionStream,language=captionStream,def=!1;const captionService=(tech.options_.vhs&&tech.options_.vhs.captionServices||{})[instreamId];captionService&&(label=captionService.label,language=captionService.language,def=captionService.default),inbandTextTracks[captionStream]=tech.addRemoteTextTrack({kind:"captions",id:instreamId,default:def,label:label,language:language},!1).track}}}(inbandTextTracks,this.vhs_.tech_,trackName),removeCuesFromTrack(startTime,endTime,inbandTextTracks[trackName]),function(_ref60){let{inbandTextTracks:inbandTextTracks,captionArray:captionArray,timestampOffset:timestampOffset}=_ref60;if(!captionArray)return;const Cue=window.WebKitDataCue||window.VTTCue;captionArray.forEach((caption=>{const track=caption.stream;inbandTextTracks[track].addCue(new Cue(caption.startTime+timestampOffset,caption.endTime+timestampOffset,caption.text))}))}({captionArray:captions,inbandTextTracks:inbandTextTracks,timestampOffset:timestampOffset})})),this.transmuxer_&&this.transmuxer_.postMessage({action:"clearParsedMp4Captions"})}handleId3_(simpleSegment,id3Frames,dispatchType){if(this.earlyAbortWhenNeeded_(simpleSegment.stats),this.checkForAbort_(simpleSegment.requestId))return;if(!this.pendingSegment_.hasAppendedData_)return void this.metadataQueue_.id3.push(this.handleId3_.bind(this,simpleSegment,id3Frames,dispatchType));const timestampOffset=null===this.sourceUpdater_.videoTimestampOffset()?this.sourceUpdater_.audioTimestampOffset():this.sourceUpdater_.videoTimestampOffset();((inbandTextTracks,dispatchType,tech)=>{inbandTextTracks.metadataTrack_||(inbandTextTracks.metadataTrack_=tech.addRemoteTextTrack({kind:"metadata",label:"Timed Metadata"},!1).track,inbandTextTracks.metadataTrack_.inBandMetadataTrackDispatchType=dispatchType)})(this.inbandTextTracks_,dispatchType,this.vhs_.tech_),addMetadata({inbandTextTracks:this.inbandTextTracks_,metadataArray:id3Frames,timestampOffset:timestampOffset,videoDuration:this.duration_()})}processMetadataQueue_(){this.metadataQueue_.id3.forEach((fn=>fn())),this.metadataQueue_.caption.forEach((fn=>fn())),this.metadataQueue_.id3=[],this.metadataQueue_.caption=[]}processCallQueue_(){const callQueue=this.callQueue_;this.callQueue_=[],callQueue.forEach((fun=>fun()))}processLoadQueue_(){const loadQueue=this.loadQueue_;this.loadQueue_=[],loadQueue.forEach((fun=>fun()))}hasEnoughInfoToLoad_(){if("audio"!==this.loaderType_)return!0;const segmentInfo=this.pendingSegment_;return!!segmentInfo&&(!this.getCurrentMediaInfo_()||!shouldWaitForTimelineChange({timelineChangeController:this.timelineChangeController_,currentTimeline:this.currentTimeline_,segmentTimeline:segmentInfo.timeline,loaderType:this.loaderType_,audioDisabled:this.audioDisabled_}))}getCurrentMediaInfo_(){let segmentInfo=arguments.length>0&&void 0!==arguments[0]?arguments[0]:this.pendingSegment_;return segmentInfo&&segmentInfo.trackInfo||this.currentMediaInfo_}getMediaInfo_(){let segmentInfo=arguments.length>0&&void 0!==arguments[0]?arguments[0]:this.pendingSegment_;return this.getCurrentMediaInfo_(segmentInfo)||this.startingMediaInfo_}getPendingSegmentPlaylist(){return this.pendingSegment_?this.pendingSegment_.playlist:null}hasEnoughInfoToAppend_(){if(!this.sourceUpdater_.ready())return!1;if(this.waitingOnRemove_||this.quotaExceededErrorRetryTimeout_)return!1;const segmentInfo=this.pendingSegment_,trackInfo=this.getCurrentMediaInfo_();if(!segmentInfo||!trackInfo)return!1;const{hasAudio:hasAudio,hasVideo:hasVideo,isMuxed:isMuxed}=trackInfo;return!(hasVideo&&!segmentInfo.videoTimingInfo)&&(!(hasAudio&&!this.audioDisabled_&&!isMuxed&&!segmentInfo.audioTimingInfo)&&!shouldWaitForTimelineChange({timelineChangeController:this.timelineChangeController_,currentTimeline:this.currentTimeline_,segmentTimeline:segmentInfo.timeline,loaderType:this.loaderType_,audioDisabled:this.audioDisabled_}))}handleData_(simpleSegment,result){if(this.earlyAbortWhenNeeded_(simpleSegment.stats),this.checkForAbort_(simpleSegment.requestId))return;if(this.callQueue_.length||!this.hasEnoughInfoToAppend_())return void this.callQueue_.push(this.handleData_.bind(this,simpleSegment,result));const segmentInfo=this.pendingSegment_;if(this.setTimeMapping_(segmentInfo.timeline),this.updateMediaSecondsLoaded_(segmentInfo.part||segmentInfo.segment),"closed"!==this.mediaSource_.readyState){if(simpleSegment.map&&(simpleSegment.map=this.initSegmentForMap(simpleSegment.map,!0),segmentInfo.segment.map=simpleSegment.map),simpleSegment.key&&this.segmentKey(simpleSegment.key,!0),segmentInfo.isFmp4=simpleSegment.isFmp4,segmentInfo.timingInfo=segmentInfo.timingInfo||{},segmentInfo.isFmp4)this.trigger("fmp4"),segmentInfo.timingInfo.start=segmentInfo[timingInfoPropertyForMedia(result.type)].start;else{const trackInfo=this.getCurrentMediaInfo_(),useVideoTimingInfo="main"===this.loaderType_&&trackInfo&&trackInfo.hasVideo;let firstVideoFrameTimeForData;useVideoTimingInfo&&(firstVideoFrameTimeForData=segmentInfo.videoTimingInfo.start),segmentInfo.timingInfo.start=this.trueSegmentStart_({currentStart:segmentInfo.timingInfo.start,playlist:segmentInfo.playlist,mediaIndex:segmentInfo.mediaIndex,currentVideoTimestampOffset:this.sourceUpdater_.videoTimestampOffset(),useVideoTimingInfo:useVideoTimingInfo,firstVideoFrameTimeForData:firstVideoFrameTimeForData,videoTimingInfo:segmentInfo.videoTimingInfo,audioTimingInfo:segmentInfo.audioTimingInfo})}if(this.updateAppendInitSegmentStatus(segmentInfo,result.type),this.updateSourceBufferTimestampOffset_(segmentInfo),segmentInfo.isSyncRequest){this.updateTimingInfoEnd_(segmentInfo),this.syncController_.saveSegmentTimingInfo({segmentInfo:segmentInfo,shouldSaveTimelineMapping:"main"===this.loaderType_});const next=this.chooseNextRequest_();if(next.mediaIndex!==segmentInfo.mediaIndex||next.partIndex!==segmentInfo.partIndex)return void this.logger_("sync segment was incorrect, not appending");this.logger_("sync segment was correct, appending")}segmentInfo.hasAppendedData_=!0,this.processMetadataQueue_(),this.appendData_(segmentInfo,result)}}updateAppendInitSegmentStatus(segmentInfo,type){"main"!==this.loaderType_||"number"!=typeof segmentInfo.timestampOffset||segmentInfo.changedTimestampOffset||(this.appendInitSegment_={audio:!0,video:!0}),this.playlistOfLastInitSegment_[type]!==segmentInfo.playlist&&(this.appendInitSegment_[type]=!0)}getInitSegmentAndUpdateState_(_ref65){let{type:type,initSegment:initSegment,map:map,playlist:playlist}=_ref65;if(map){const id=initSegmentId(map);if(this.activeInitSegmentId_===id)return null;initSegment=this.initSegmentForMap(map,!0).bytes,this.activeInitSegmentId_=id}return initSegment&&this.appendInitSegment_[type]?(this.playlistOfLastInitSegment_[type]=playlist,this.appendInitSegment_[type]=!1,this.activeInitSegmentId_=null,initSegment):null}handleQuotaExceededError_(_ref66,error){let{segmentInfo:segmentInfo,type:type,bytes:bytes}=_ref66;const audioBuffered=this.sourceUpdater_.audioBuffered(),videoBuffered=this.sourceUpdater_.videoBuffered();audioBuffered.length>1&&this.logger_("On QUOTA_EXCEEDED_ERR, found gaps in the audio buffer: "+timeRangesToArray(audioBuffered).join(", ")),videoBuffered.length>1&&this.logger_("On QUOTA_EXCEEDED_ERR, found gaps in the video buffer: "+timeRangesToArray(videoBuffered).join(", "));const audioBufferStart=audioBuffered.length?audioBuffered.start(0):0,audioBufferEnd=audioBuffered.length?audioBuffered.end(audioBuffered.length-1):0,videoBufferStart=videoBuffered.length?videoBuffered.start(0):0,videoBufferEnd=videoBuffered.length?videoBuffered.end(videoBuffered.length-1):0;if(audioBufferEnd-audioBufferStart<=1&&videoBufferEnd-videoBufferStart<=1)return this.logger_("On QUOTA_EXCEEDED_ERR, single segment too large to append to buffer, triggering an error. "+"Appended byte length: ".concat(bytes.byteLength,", ")+"audio buffer: ".concat(timeRangesToArray(audioBuffered).join(", "),", ")+"video buffer: ".concat(timeRangesToArray(videoBuffered).join(", "),", ")),this.error({message:"Quota exceeded error with append of a single segment of content",excludeUntil:1/0}),void this.trigger("error");this.waitingOnRemove_=!0,this.callQueue_.push(this.appendToSourceBuffer_.bind(this,{segmentInfo:segmentInfo,type:type,bytes:bytes}));const timeToRemoveUntil=this.currentTime_()-1;this.logger_("On QUOTA_EXCEEDED_ERR, removing audio/video from 0 to ".concat(timeToRemoveUntil)),this.remove(0,timeToRemoveUntil,(()=>{this.logger_("On QUOTA_EXCEEDED_ERR, retrying append in ".concat(1,"s")),this.waitingOnRemove_=!1,this.quotaExceededErrorRetryTimeout_=window.setTimeout((()=>{this.logger_("On QUOTA_EXCEEDED_ERR, re-processing call queue"),this.quotaExceededErrorRetryTimeout_=null,this.processCallQueue_()}),1e3)}),!0)}handleAppendError_(_ref67,error){let{segmentInfo:segmentInfo,type:type,bytes:bytes}=_ref67;error&&(22!==error.code?(this.logger_("Received non QUOTA_EXCEEDED_ERR on append",error),this.error("".concat(type," append of ").concat(bytes.length,"b failed for segment ")+"#".concat(segmentInfo.mediaIndex," in playlist ").concat(segmentInfo.playlist.id)),this.trigger("appenderror")):this.handleQuotaExceededError_({segmentInfo:segmentInfo,type:type,bytes:bytes}))}appendToSourceBuffer_(_ref68){let{segmentInfo:segmentInfo,type:type,initSegment:initSegment,data:data,bytes:bytes}=_ref68;if(!bytes){const segments=[data];let byteLength=data.byteLength;initSegment&&(segments.unshift(initSegment),byteLength+=initSegment.byteLength),bytes=(segmentObj=>{let tempBuffer,offset=0;return segmentObj.bytes&&(tempBuffer=new Uint8Array(segmentObj.bytes),segmentObj.segments.forEach((segment=>{tempBuffer.set(segment,offset),offset+=segment.byteLength}))),tempBuffer})({bytes:byteLength,segments:segments})}this.sourceUpdater_.appendBuffer({segmentInfo:segmentInfo,type:type,bytes:bytes},this.handleAppendError_.bind(this,{segmentInfo:segmentInfo,type:type,bytes:bytes}))}handleSegmentTimingInfo_(type,requestId,segmentTimingInfo){if(!this.pendingSegment_||requestId!==this.pendingSegment_.requestId)return;const segment=this.pendingSegment_.segment,timingInfoProperty="".concat(type,"TimingInfo");segment[timingInfoProperty]||(segment[timingInfoProperty]={}),segment[timingInfoProperty].transmuxerPrependedSeconds=segmentTimingInfo.prependedContentDuration||0,segment[timingInfoProperty].transmuxedPresentationStart=segmentTimingInfo.start.presentation,segment[timingInfoProperty].transmuxedDecodeStart=segmentTimingInfo.start.decode,segment[timingInfoProperty].transmuxedPresentationEnd=segmentTimingInfo.end.presentation,segment[timingInfoProperty].transmuxedDecodeEnd=segmentTimingInfo.end.decode,segment[timingInfoProperty].baseMediaDecodeTime=segmentTimingInfo.baseMediaDecodeTime}appendData_(segmentInfo,result){const{type:type,data:data}=result;if(!data||!data.byteLength)return;if("audio"===type&&this.audioDisabled_)return;const initSegment=this.getInitSegmentAndUpdateState_({type:type,initSegment:result.initSegment,playlist:segmentInfo.playlist,map:segmentInfo.isFmp4?segmentInfo.segment.map:null});this.appendToSourceBuffer_({segmentInfo:segmentInfo,type:type,initSegment:initSegment,data:data})}loadSegment_(segmentInfo){this.state="WAITING",this.pendingSegment_=segmentInfo,this.trimBackBuffer_(segmentInfo),"number"==typeof segmentInfo.timestampOffset&&this.transmuxer_&&this.transmuxer_.postMessage({action:"clearAllMp4Captions"}),this.hasEnoughInfoToLoad_()?this.updateTransmuxerAndRequestSegment_(segmentInfo):this.loadQueue_.push((()=>{const options=_extends$1({},segmentInfo,{forceTimestampOffset:!0});_extends$1(segmentInfo,this.generateSegmentInfo_(options)),this.isPendingTimestampOffset_=!1,this.updateTransmuxerAndRequestSegment_(segmentInfo)}))}updateTransmuxerAndRequestSegment_(segmentInfo){this.shouldUpdateTransmuxerTimestampOffset_(segmentInfo.timestampOffset)&&(this.gopBuffer_.length=0,segmentInfo.gopsToAlignWith=[],this.timeMapping_=0,this.transmuxer_.postMessage({action:"reset"}),this.transmuxer_.postMessage({action:"setTimestampOffset",timestampOffset:segmentInfo.timestampOffset}));const simpleSegment=this.createSimplifiedSegmentObj_(segmentInfo),isEndOfStream=this.isEndOfStream_(segmentInfo.mediaIndex,segmentInfo.playlist,segmentInfo.partIndex),isWalkingForward=null!==this.mediaIndex,isDiscontinuity=segmentInfo.timeline!==this.currentTimeline_&&segmentInfo.timeline>0,isEndOfTimeline=isEndOfStream||isWalkingForward&&isDiscontinuity;this.logger_("Requesting ".concat(segmentInfoString(segmentInfo))),simpleSegment.map&&!simpleSegment.map.bytes&&(this.logger_("going to request init segment."),this.appendInitSegment_={video:!0,audio:!0}),segmentInfo.abortRequests=mediaSegmentRequest({xhr:this.vhs_.xhr,xhrOptions:this.xhrOptions_,decryptionWorker:this.decrypter_,segment:simpleSegment,abortFn:this.handleAbort_.bind(this,segmentInfo),progressFn:this.handleProgress_.bind(this),trackInfoFn:this.handleTrackInfo_.bind(this),timingInfoFn:this.handleTimingInfo_.bind(this),videoSegmentTimingInfoFn:this.handleSegmentTimingInfo_.bind(this,"video",segmentInfo.requestId),audioSegmentTimingInfoFn:this.handleSegmentTimingInfo_.bind(this,"audio",segmentInfo.requestId),captionsFn:this.handleCaptions_.bind(this),isEndOfTimeline:isEndOfTimeline,endedTimelineFn:()=>{this.logger_("received endedtimeline callback")},id3Fn:this.handleId3_.bind(this),dataFn:this.handleData_.bind(this),doneFn:this.segmentRequestFinished_.bind(this),onTransmuxerLog:_ref69=>{let{message:message,level:level,stream:stream}=_ref69;this.logger_("".concat(segmentInfoString(segmentInfo)," logged from transmuxer stream ").concat(stream," as a ").concat(level,": ").concat(message))}})}trimBackBuffer_(segmentInfo){const removeToTime=((seekable,currentTime,targetDuration)=>{let trimTime=currentTime-Config.BACK_BUFFER_LENGTH;seekable.length&&(trimTime=Math.max(trimTime,seekable.start(0)));const maxTrimTime=currentTime-targetDuration;return Math.min(maxTrimTime,trimTime)})(this.seekable_(),this.currentTime_(),this.playlist_.targetDuration||10);removeToTime>0&&this.remove(0,removeToTime)}createSimplifiedSegmentObj_(segmentInfo){const segment=segmentInfo.segment,part=segmentInfo.part,simpleSegment={resolvedUri:part?part.resolvedUri:segment.resolvedUri,byterange:part?part.byterange:segment.byterange,requestId:segmentInfo.requestId,transmuxer:segmentInfo.transmuxer,audioAppendStart:segmentInfo.audioAppendStart,gopsToAlignWith:segmentInfo.gopsToAlignWith,part:segmentInfo.part},previousSegment=segmentInfo.playlist.segments[segmentInfo.mediaIndex-1];if(previousSegment&&previousSegment.timeline===segment.timeline&&(previousSegment.videoTimingInfo?simpleSegment.baseStartTime=previousSegment.videoTimingInfo.transmuxedDecodeEnd:previousSegment.audioTimingInfo&&(simpleSegment.baseStartTime=previousSegment.audioTimingInfo.transmuxedDecodeEnd)),segment.key){const iv=segment.key.iv||new Uint32Array([0,0,0,segmentInfo.mediaIndex+segmentInfo.playlist.mediaSequence]);simpleSegment.key=this.segmentKey(segment.key),simpleSegment.key.iv=iv}return segment.map&&(simpleSegment.map=this.initSegmentForMap(segment.map)),simpleSegment}saveTransferStats_(stats){this.mediaRequests+=1,stats&&(this.mediaBytesTransferred+=stats.bytesReceived,this.mediaTransferDuration+=stats.roundTripTime)}saveBandwidthRelatedStats_(duration,stats){this.pendingSegment_.byteLength=stats.bytesReceived,duration<.016666666666666666?this.logger_("Ignoring segment's bandwidth because its duration of ".concat(duration)+" is less than the min to record ".concat(.016666666666666666)):(this.bandwidth=stats.bandwidth,this.roundTrip=stats.roundTripTime)}handleTimeout_(){this.mediaRequestsTimedout+=1,this.bandwidth=1,this.roundTrip=NaN,this.trigger("bandwidthupdate"),this.trigger("timeout")}segmentRequestFinished_(error,simpleSegment,result){if(this.callQueue_.length)return void this.callQueue_.push(this.segmentRequestFinished_.bind(this,error,simpleSegment,result));if(this.saveTransferStats_(simpleSegment.stats),!this.pendingSegment_)return;if(simpleSegment.requestId!==this.pendingSegment_.requestId)return;if(error){if(this.pendingSegment_=null,this.state="READY",error.code===REQUEST_ERRORS_ABORTED)return;return this.pause(),error.code===REQUEST_ERRORS_TIMEOUT?void this.handleTimeout_():(this.mediaRequestsErrored+=1,this.error(error),void this.trigger("error"))}const segmentInfo=this.pendingSegment_;this.saveBandwidthRelatedStats_(segmentInfo.duration,simpleSegment.stats),segmentInfo.endOfAllRequests=simpleSegment.endOfAllRequests,result.gopInfo&&(this.gopBuffer_=((buffer,gops,replace)=>{if(!gops.length)return buffer;if(replace)return gops.slice();const start=gops[0].pts;let i=0;for(;i<buffer.length&&!(buffer[i].pts>=start);i++);return buffer.slice(0,i).concat(gops)})(this.gopBuffer_,result.gopInfo,this.safeAppend_)),this.state="APPENDING",this.trigger("appending"),this.waitForAppendsToComplete_(segmentInfo)}setTimeMapping_(timeline){const timelineMapping=this.syncController_.mappingForTimeline(timeline);null!==timelineMapping&&(this.timeMapping_=timelineMapping)}updateMediaSecondsLoaded_(segment){"number"==typeof segment.start&&"number"==typeof segment.end?this.mediaSecondsLoaded+=segment.end-segment.start:this.mediaSecondsLoaded+=segment.duration}shouldUpdateTransmuxerTimestampOffset_(timestampOffset){return null!==timestampOffset&&("main"===this.loaderType_&&timestampOffset!==this.sourceUpdater_.videoTimestampOffset()||!this.audioDisabled_&&timestampOffset!==this.sourceUpdater_.audioTimestampOffset())}trueSegmentStart_(_ref70){let{currentStart:currentStart,playlist:playlist,mediaIndex:mediaIndex,firstVideoFrameTimeForData:firstVideoFrameTimeForData,currentVideoTimestampOffset:currentVideoTimestampOffset,useVideoTimingInfo:useVideoTimingInfo,videoTimingInfo:videoTimingInfo,audioTimingInfo:audioTimingInfo}=_ref70;if(void 0!==currentStart)return currentStart;if(!useVideoTimingInfo)return audioTimingInfo.start;const previousSegment=playlist.segments[mediaIndex-1];return 0!==mediaIndex&&previousSegment&&void 0!==previousSegment.start&&previousSegment.end===firstVideoFrameTimeForData+currentVideoTimestampOffset?videoTimingInfo.start:firstVideoFrameTimeForData}waitForAppendsToComplete_(segmentInfo){const trackInfo=this.getCurrentMediaInfo_(segmentInfo);if(!trackInfo)return this.error({message:"No starting media returned, likely due to an unsupported media format.",playlistExclusionDuration:1/0}),void this.trigger("error");const{hasAudio:hasAudio,hasVideo:hasVideo,isMuxed:isMuxed}=trackInfo,waitForVideo="main"===this.loaderType_&&hasVideo,waitForAudio=!this.audioDisabled_&&hasAudio&&!isMuxed;if(segmentInfo.waitingOnAppends=0,!segmentInfo.hasAppendedData_)return segmentInfo.timingInfo||"number"!=typeof segmentInfo.timestampOffset||(this.isPendingTimestampOffset_=!0),segmentInfo.timingInfo={start:0},segmentInfo.waitingOnAppends++,this.isPendingTimestampOffset_||(this.updateSourceBufferTimestampOffset_(segmentInfo),this.processMetadataQueue_()),void this.checkAppendsDone_(segmentInfo);waitForVideo&&segmentInfo.waitingOnAppends++,waitForAudio&&segmentInfo.waitingOnAppends++,waitForVideo&&this.sourceUpdater_.videoQueueCallback(this.checkAppendsDone_.bind(this,segmentInfo)),waitForAudio&&this.sourceUpdater_.audioQueueCallback(this.checkAppendsDone_.bind(this,segmentInfo))}checkAppendsDone_(segmentInfo){this.checkForAbort_(segmentInfo.requestId)||(segmentInfo.waitingOnAppends--,0===segmentInfo.waitingOnAppends&&this.handleAppendsDone_())}checkForIllegalMediaSwitch(trackInfo){const illegalMediaSwitchError=((loaderType,startingMedia,trackInfo)=>"main"===loaderType&&startingMedia&&trackInfo?trackInfo.hasAudio||trackInfo.hasVideo?startingMedia.hasVideo&&!trackInfo.hasVideo?"Only audio found in segment when we expected video. We can't switch to audio only from a stream that had video. To get rid of this message, please add codec information to the manifest.":!startingMedia.hasVideo&&trackInfo.hasVideo?"Video found in segment when we expected only audio. We can't switch to a stream with video from an audio only stream. To get rid of this message, please add codec information to the manifest.":null:"Neither audio nor video found in segment.":null)(this.loaderType_,this.getCurrentMediaInfo_(),trackInfo);return!!illegalMediaSwitchError&&(this.error({message:illegalMediaSwitchError,playlistExclusionDuration:1/0}),this.trigger("error"),!0)}updateSourceBufferTimestampOffset_(segmentInfo){if(null===segmentInfo.timestampOffset||"number"!=typeof segmentInfo.timingInfo.start||segmentInfo.changedTimestampOffset||"main"!==this.loaderType_)return;let didChange=!1;segmentInfo.timestampOffset-=this.getSegmentStartTimeForTimestampOffsetCalculation_({videoTimingInfo:segmentInfo.segment.videoTimingInfo,audioTimingInfo:segmentInfo.segment.audioTimingInfo,timingInfo:segmentInfo.timingInfo}),segmentInfo.changedTimestampOffset=!0,segmentInfo.timestampOffset!==this.sourceUpdater_.videoTimestampOffset()&&(this.sourceUpdater_.videoTimestampOffset(segmentInfo.timestampOffset),didChange=!0),segmentInfo.timestampOffset!==this.sourceUpdater_.audioTimestampOffset()&&(this.sourceUpdater_.audioTimestampOffset(segmentInfo.timestampOffset),didChange=!0),didChange&&this.trigger("timestampoffset")}getSegmentStartTimeForTimestampOffsetCalculation_(_ref71){let{videoTimingInfo:videoTimingInfo,audioTimingInfo:audioTimingInfo,timingInfo:timingInfo}=_ref71;return this.useDtsForTimestampOffset_?videoTimingInfo&&"number"==typeof videoTimingInfo.transmuxedDecodeStart?videoTimingInfo.transmuxedDecodeStart:audioTimingInfo&&"number"==typeof audioTimingInfo.transmuxedDecodeStart?audioTimingInfo.transmuxedDecodeStart:timingInfo.start:timingInfo.start}updateTimingInfoEnd_(segmentInfo){segmentInfo.timingInfo=segmentInfo.timingInfo||{};const trackInfo=this.getMediaInfo_(),prioritizedTimingInfo="main"===this.loaderType_&&trackInfo&&trackInfo.hasVideo&&segmentInfo.videoTimingInfo?segmentInfo.videoTimingInfo:segmentInfo.audioTimingInfo;prioritizedTimingInfo&&(segmentInfo.timingInfo.end="number"==typeof prioritizedTimingInfo.end?prioritizedTimingInfo.end:prioritizedTimingInfo.start+segmentInfo.duration)}handleAppendsDone_(){if(this.pendingSegment_&&this.trigger("appendsdone"),!this.pendingSegment_)return this.state="READY",void(this.paused()||this.monitorBuffer_());const segmentInfo=this.pendingSegment_;this.updateTimingInfoEnd_(segmentInfo),this.shouldSaveSegmentTimingInfo_&&this.syncController_.saveSegmentTimingInfo({segmentInfo:segmentInfo,shouldSaveTimelineMapping:"main"===this.loaderType_});const segmentDurationMessage=getTroublesomeSegmentDurationMessage(segmentInfo,this.sourceType_);if(segmentDurationMessage&&("warn"===segmentDurationMessage.severity?videojs.log.warn(segmentDurationMessage.message):this.logger_(segmentDurationMessage.message)),this.recordThroughput_(segmentInfo),this.pendingSegment_=null,this.state="READY",segmentInfo.isSyncRequest&&(this.trigger("syncinfoupdate"),!segmentInfo.hasAppendedData_))return void this.logger_("Throwing away un-appended sync request ".concat(segmentInfoString(segmentInfo)));this.logger_("Appended ".concat(segmentInfoString(segmentInfo))),this.addSegmentMetadataCue_(segmentInfo),this.fetchAtBuffer_=!0,this.currentTimeline_!==segmentInfo.timeline&&(this.timelineChangeController_.lastTimelineChange({type:this.loaderType_,from:this.currentTimeline_,to:segmentInfo.timeline}),"main"!==this.loaderType_||this.audioDisabled_||this.timelineChangeController_.lastTimelineChange({type:"audio",from:this.currentTimeline_,to:segmentInfo.timeline})),this.currentTimeline_=segmentInfo.timeline,this.trigger("syncinfoupdate");const segment=segmentInfo.segment,part=segmentInfo.part,badSegmentGuess=segment.end&&this.currentTime_()-segment.end>3*segmentInfo.playlist.targetDuration,badPartGuess=part&&part.end&&this.currentTime_()-part.end>3*segmentInfo.playlist.partTargetDuration;if(badSegmentGuess||badPartGuess)return this.logger_("bad ".concat(badSegmentGuess?"segment":"part"," ").concat(segmentInfoString(segmentInfo))),void this.resetEverything();null!==this.mediaIndex&&this.trigger("bandwidthupdate"),this.trigger("progress"),this.mediaIndex=segmentInfo.mediaIndex,this.partIndex=segmentInfo.partIndex,this.isEndOfStream_(segmentInfo.mediaIndex,segmentInfo.playlist,segmentInfo.partIndex)&&this.endOfStream(),this.trigger("appended"),segmentInfo.hasAppendedData_&&this.mediaAppends++,this.paused()||this.monitorBuffer_()}recordThroughput_(segmentInfo){if(segmentInfo.duration<.016666666666666666)return void this.logger_("Ignoring segment's throughput because its duration of ".concat(segmentInfo.duration)+" is less than the min to record ".concat(.016666666666666666));const rate=this.throughput.rate,segmentProcessingTime=Date.now()-segmentInfo.endOfAllRequests+1,segmentProcessingThroughput=Math.floor(segmentInfo.byteLength/segmentProcessingTime*8*1e3);this.throughput.rate+=(segmentProcessingThroughput-rate)/++this.throughput.count}addSegmentMetadataCue_(segmentInfo){if(!this.segmentMetadataTrack_)return;const segment=segmentInfo.segment,start=segment.start,end=segment.end;if(!finite(start)||!finite(end))return;removeCuesFromTrack(start,end,this.segmentMetadataTrack_);const Cue=window.WebKitDataCue||window.VTTCue,value={custom:segment.custom,dateTimeObject:segment.dateTimeObject,dateTimeString:segment.dateTimeString,bandwidth:segmentInfo.playlist.attributes.BANDWIDTH,resolution:segmentInfo.playlist.attributes.RESOLUTION,codecs:segmentInfo.playlist.attributes.CODECS,byteLength:segmentInfo.byteLength,uri:segmentInfo.uri,timeline:segmentInfo.timeline,playlist:segmentInfo.playlist.id,start:start,end:end},cue=new Cue(start,end,JSON.stringify(value));cue.value=value,this.segmentMetadataTrack_.addCue(cue)}}function noop(){}const toTitleCase=function(string){return"string"!=typeof string?string:string.replace(/./,(w=>w.toUpperCase()))},bufferTypes=["video","audio"],updating=(type,sourceUpdater)=>{const sourceBuffer=sourceUpdater["".concat(type,"Buffer")];return sourceBuffer&&sourceBuffer.updating||sourceUpdater.queuePending[type]},shiftQueue=(type,sourceUpdater)=>{if(0===sourceUpdater.queue.length)return;let queueIndex=0,queueEntry=sourceUpdater.queue[queueIndex];if("mediaSource"!==queueEntry.type){if("mediaSource"!==type&&sourceUpdater.ready()&&"closed"!==sourceUpdater.mediaSource.readyState&&!updating(type,sourceUpdater)){if(queueEntry.type!==type){if(queueIndex=((type,queue)=>{for(let i=0;i<queue.length;i++){const queueEntry=queue[i];if("mediaSource"===queueEntry.type)return null;if(queueEntry.type===type)return i}return null})(type,sourceUpdater.queue),null===queueIndex)return;queueEntry=sourceUpdater.queue[queueIndex]}return sourceUpdater.queue.splice(queueIndex,1),sourceUpdater.queuePending[type]=queueEntry,queueEntry.action(type,sourceUpdater),queueEntry.doneFn?void 0:(sourceUpdater.queuePending[type]=null,void shiftQueue(type,sourceUpdater))}}else sourceUpdater.updating()||"closed"===sourceUpdater.mediaSource.readyState||(sourceUpdater.queue.shift(),queueEntry.action(sourceUpdater),queueEntry.doneFn&&queueEntry.doneFn(),shiftQueue("audio",sourceUpdater),shiftQueue("video",sourceUpdater))},cleanupBuffer=(type,sourceUpdater)=>{const buffer=sourceUpdater["".concat(type,"Buffer")],titleType=toTitleCase(type);buffer&&(buffer.removeEventListener("updateend",sourceUpdater["on".concat(titleType,"UpdateEnd_")]),buffer.removeEventListener("error",sourceUpdater["on".concat(titleType,"Error_")]),sourceUpdater.codecs[type]=null,sourceUpdater["".concat(type,"Buffer")]=null)},inSourceBuffers=(mediaSource,sourceBuffer)=>mediaSource&&sourceBuffer&&-1!==Array.prototype.indexOf.call(mediaSource.sourceBuffers,sourceBuffer),actions_appendBuffer=(bytes,segmentInfo,onError)=>(type,sourceUpdater)=>{const sourceBuffer=sourceUpdater["".concat(type,"Buffer")];if(inSourceBuffers(sourceUpdater.mediaSource,sourceBuffer)){sourceUpdater.logger_("Appending segment ".concat(segmentInfo.mediaIndex,"'s ").concat(bytes.length," bytes to ").concat(type,"Buffer"));try{sourceBuffer.appendBuffer(bytes)}catch(e){sourceUpdater.logger_("Error with code ".concat(e.code," ")+(22===e.code?"(QUOTA_EXCEEDED_ERR) ":"")+"when appending segment ".concat(segmentInfo.mediaIndex," to ").concat(type,"Buffer")),sourceUpdater.queuePending[type]=null,onError(e)}}},actions_remove=(start,end)=>(type,sourceUpdater)=>{const sourceBuffer=sourceUpdater["".concat(type,"Buffer")];if(inSourceBuffers(sourceUpdater.mediaSource,sourceBuffer)){sourceUpdater.logger_("Removing ".concat(start," to ").concat(end," from ").concat(type,"Buffer"));try{sourceBuffer.remove(start,end)}catch(e){sourceUpdater.logger_("Remove ".concat(start," to ").concat(end," from ").concat(type,"Buffer failed"))}}},actions_timestampOffset=offset=>(type,sourceUpdater)=>{const sourceBuffer=sourceUpdater["".concat(type,"Buffer")];inSourceBuffers(sourceUpdater.mediaSource,sourceBuffer)&&(sourceUpdater.logger_("Setting ".concat(type,"timestampOffset to ").concat(offset)),sourceBuffer.timestampOffset=offset)},actions_callback=callback=>(type,sourceUpdater)=>{callback()},actions_endOfStream=error=>sourceUpdater=>{if("open"===sourceUpdater.mediaSource.readyState){sourceUpdater.logger_("Calling mediaSource endOfStream(".concat(error||"",")"));try{sourceUpdater.mediaSource.endOfStream(error)}catch(e){videojs.log.warn("Failed to call media source endOfStream",e)}}},actions_duration=duration=>sourceUpdater=>{sourceUpdater.logger_("Setting mediaSource duration to ".concat(duration));try{sourceUpdater.mediaSource.duration=duration}catch(e){videojs.log.warn("Failed to set media source duration",e)}},actions_abort=()=>(type,sourceUpdater)=>{if("open"!==sourceUpdater.mediaSource.readyState)return;const sourceBuffer=sourceUpdater["".concat(type,"Buffer")];if(inSourceBuffers(sourceUpdater.mediaSource,sourceBuffer)){sourceUpdater.logger_("calling abort on ".concat(type,"Buffer"));try{sourceBuffer.abort()}catch(e){videojs.log.warn("Failed to abort on ".concat(type,"Buffer"),e)}}},actions_addSourceBuffer=(type,codec)=>sourceUpdater=>{const titleType=toTitleCase(type),mime=getMimeForCodec(codec);sourceUpdater.logger_("Adding ".concat(type,"Buffer with codec ").concat(codec," to mediaSource"));const sourceBuffer=sourceUpdater.mediaSource.addSourceBuffer(mime);sourceBuffer.addEventListener("updateend",sourceUpdater["on".concat(titleType,"UpdateEnd_")]),sourceBuffer.addEventListener("error",sourceUpdater["on".concat(titleType,"Error_")]),sourceUpdater.codecs[type]=codec,sourceUpdater["".concat(type,"Buffer")]=sourceBuffer},actions_removeSourceBuffer=type=>sourceUpdater=>{const sourceBuffer=sourceUpdater["".concat(type,"Buffer")];if(cleanupBuffer(type,sourceUpdater),inSourceBuffers(sourceUpdater.mediaSource,sourceBuffer)){sourceUpdater.logger_("Removing ".concat(type,"Buffer with codec ").concat(sourceUpdater.codecs[type]," from mediaSource"));try{sourceUpdater.mediaSource.removeSourceBuffer(sourceBuffer)}catch(e){videojs.log.warn("Failed to removeSourceBuffer ".concat(type,"Buffer"),e)}}},actions_changeType=codec=>(type,sourceUpdater)=>{const sourceBuffer=sourceUpdater["".concat(type,"Buffer")],mime=getMimeForCodec(codec);inSourceBuffers(sourceUpdater.mediaSource,sourceBuffer)&&sourceUpdater.codecs[type]!==codec&&(sourceUpdater.logger_("changing ".concat(type,"Buffer codec from ").concat(sourceUpdater.codecs[type]," to ").concat(codec)),sourceBuffer.changeType(mime),sourceUpdater.codecs[type]=codec)},pushQueue=_ref72=>{let{type:type,sourceUpdater:sourceUpdater,action:action,doneFn:doneFn,name:name}=_ref72;sourceUpdater.queue.push({type:type,action:action,doneFn:doneFn,name:name}),shiftQueue(type,sourceUpdater)},onUpdateend=(type,sourceUpdater)=>e=>{if(sourceUpdater.queuePending[type]){const doneFn=sourceUpdater.queuePending[type].doneFn;sourceUpdater.queuePending[type]=null,doneFn&&doneFn(sourceUpdater["".concat(type,"Error_")])}shiftQueue(type,sourceUpdater)};class SourceUpdater extends videojs.EventTarget{constructor(mediaSource){super(),this.mediaSource=mediaSource,this.sourceopenListener_=()=>shiftQueue("mediaSource",this),this.mediaSource.addEventListener("sourceopen",this.sourceopenListener_),this.logger_=logger("SourceUpdater"),this.audioTimestampOffset_=0,this.videoTimestampOffset_=0,this.queue=[],this.queuePending={audio:null,video:null},this.delayedAudioAppendQueue_=[],this.videoAppendQueued_=!1,this.codecs={},this.onVideoUpdateEnd_=onUpdateend("video",this),this.onAudioUpdateEnd_=onUpdateend("audio",this),this.onVideoError_=e=>{this.videoError_=e},this.onAudioError_=e=>{this.audioError_=e},this.createdSourceBuffers_=!1,this.initializedEme_=!1,this.triggeredReady_=!1}initializedEme(){this.initializedEme_=!0,this.triggerReady()}hasCreatedSourceBuffers(){return this.createdSourceBuffers_}hasInitializedAnyEme(){return this.initializedEme_}ready(){return this.hasCreatedSourceBuffers()&&this.hasInitializedAnyEme()}createSourceBuffers(codecs){this.hasCreatedSourceBuffers()||(this.addOrChangeSourceBuffers(codecs),this.createdSourceBuffers_=!0,this.trigger("createdsourcebuffers"),this.triggerReady())}triggerReady(){this.ready()&&!this.triggeredReady_&&(this.triggeredReady_=!0,this.trigger("ready"))}addSourceBuffer(type,codec){pushQueue({type:"mediaSource",sourceUpdater:this,action:actions_addSourceBuffer(type,codec),name:"addSourceBuffer"})}abort(type){pushQueue({type:type,sourceUpdater:this,action:actions_abort(type),name:"abort"})}removeSourceBuffer(type){this.canRemoveSourceBuffer()?pushQueue({type:"mediaSource",sourceUpdater:this,action:actions_removeSourceBuffer(type),name:"removeSourceBuffer"}):videojs.log.error("removeSourceBuffer is not supported!")}canRemoveSourceBuffer(){return!videojs.browser.IE_VERSION&&!videojs.browser.IS_FIREFOX&&window.MediaSource&&window.MediaSource.prototype&&"function"==typeof window.MediaSource.prototype.removeSourceBuffer}static canChangeType(){return window.SourceBuffer&&window.SourceBuffer.prototype&&"function"==typeof window.SourceBuffer.prototype.changeType}canChangeType(){return this.constructor.canChangeType()}changeType(type,codec){this.canChangeType()?pushQueue({type:type,sourceUpdater:this,action:actions_changeType(codec),name:"changeType"}):videojs.log.error("changeType is not supported!")}addOrChangeSourceBuffers(codecs){if(!codecs||"object"!=typeof codecs||0===Object.keys(codecs).length)throw new Error("Cannot addOrChangeSourceBuffers to undefined codecs");Object.keys(codecs).forEach((type=>{const codec=codecs[type];if(!this.hasCreatedSourceBuffers())return this.addSourceBuffer(type,codec);this.canChangeType()&&this.changeType(type,codec)}))}appendBuffer(options,doneFn){const{segmentInfo:segmentInfo,type:type,bytes:bytes}=options;if(this.processedAppend_=!0,"audio"===type&&this.videoBuffer&&!this.videoAppendQueued_)return this.delayedAudioAppendQueue_.push([options,doneFn]),void this.logger_("delayed audio append of ".concat(bytes.length," until video append"));if(pushQueue({type:type,sourceUpdater:this,action:actions_appendBuffer(bytes,segmentInfo||{mediaIndex:-1},doneFn),doneFn:doneFn,name:"appendBuffer"}),"video"===type){if(this.videoAppendQueued_=!0,!this.delayedAudioAppendQueue_.length)return;const queue=this.delayedAudioAppendQueue_.slice();this.logger_("queuing delayed audio ".concat(queue.length," appendBuffers")),this.delayedAudioAppendQueue_.length=0,queue.forEach((que=>{this.appendBuffer.apply(this,que)}))}}audioBuffered(){return inSourceBuffers(this.mediaSource,this.audioBuffer)&&this.audioBuffer.buffered?this.audioBuffer.buffered:createTimeRanges()}videoBuffered(){return inSourceBuffers(this.mediaSource,this.videoBuffer)&&this.videoBuffer.buffered?this.videoBuffer.buffered:createTimeRanges()}buffered(){const video=inSourceBuffers(this.mediaSource,this.videoBuffer)?this.videoBuffer:null,audio=inSourceBuffers(this.mediaSource,this.audioBuffer)?this.audioBuffer:null;return audio&&!video?this.audioBuffered():video&&!audio?this.videoBuffered():function(bufferA,bufferB){let start=null,end=null,arity=0;const extents=[],ranges=[];if(!(bufferA&&bufferA.length&&bufferB&&bufferB.length))return createTimeRanges();let count=bufferA.length;for(;count--;)extents.push({time:bufferA.start(count),type:"start"}),extents.push({time:bufferA.end(count),type:"end"});for(count=bufferB.length;count--;)extents.push({time:bufferB.start(count),type:"start"}),extents.push({time:bufferB.end(count),type:"end"});for(extents.sort((function(a,b){return a.time-b.time})),count=0;count<extents.length;count++)"start"===extents[count].type?(arity++,2===arity&&(start=extents[count].time)):"end"===extents[count].type&&(arity--,1===arity&&(end=extents[count].time)),null!==start&&null!==end&&(ranges.push([start,end]),start=null,end=null);return createTimeRanges(ranges)}(this.audioBuffered(),this.videoBuffered())}setDuration(duration){let doneFn=arguments.length>1&&void 0!==arguments[1]?arguments[1]:noop;pushQueue({type:"mediaSource",sourceUpdater:this,action:actions_duration(duration),name:"duration",doneFn:doneFn})}endOfStream(){let error=arguments.length>0&&void 0!==arguments[0]?arguments[0]:null,doneFn=arguments.length>1&&void 0!==arguments[1]?arguments[1]:noop;"string"!=typeof error&&(error=void 0),pushQueue({type:"mediaSource",sourceUpdater:this,action:actions_endOfStream(error),name:"endOfStream",doneFn:doneFn})}removeAudio(start,end){let done=arguments.length>2&&void 0!==arguments[2]?arguments[2]:noop;this.audioBuffered().length&&0!==this.audioBuffered().end(0)?pushQueue({type:"audio",sourceUpdater:this,action:actions_remove(start,end),doneFn:done,name:"remove"}):done()}removeVideo(start,end){let done=arguments.length>2&&void 0!==arguments[2]?arguments[2]:noop;this.videoBuffered().length&&0!==this.videoBuffered().end(0)?pushQueue({type:"video",sourceUpdater:this,action:actions_remove(start,end),doneFn:done,name:"remove"}):done()}updating(){return!(!updating("audio",this)&&!updating("video",this))}audioTimestampOffset(offset){return void 0!==offset&&this.audioBuffer&&this.audioTimestampOffset_!==offset&&(pushQueue({type:"audio",sourceUpdater:this,action:actions_timestampOffset(offset),name:"timestampOffset"}),this.audioTimestampOffset_=offset),this.audioTimestampOffset_}videoTimestampOffset(offset){return void 0!==offset&&this.videoBuffer&&this.videoTimestampOffset!==offset&&(pushQueue({type:"video",sourceUpdater:this,action:actions_timestampOffset(offset),name:"timestampOffset"}),this.videoTimestampOffset_=offset),this.videoTimestampOffset_}audioQueueCallback(callback){this.audioBuffer&&pushQueue({type:"audio",sourceUpdater:this,action:actions_callback(callback),name:"callback"})}videoQueueCallback(callback){this.videoBuffer&&pushQueue({type:"video",sourceUpdater:this,action:actions_callback(callback),name:"callback"})}dispose(){this.trigger("dispose"),bufferTypes.forEach((type=>{this.abort(type),this.canRemoveSourceBuffer()?this.removeSourceBuffer(type):this["".concat(type,"QueueCallback")]((()=>cleanupBuffer(type,this)))})),this.videoAppendQueued_=!1,this.delayedAudioAppendQueue_.length=0,this.sourceopenListener_&&this.mediaSource.removeEventListener("sourceopen",this.sourceopenListener_),this.off()}}const uint8ToUtf8=uintArray=>decodeURIComponent(escape(String.fromCharCode.apply(null,uintArray))),VTT_LINE_TERMINATORS=new Uint8Array("\n\n".split("").map((char=>char.charCodeAt(0))));class NoVttJsError extends Error{constructor(){super("Trying to parse received VTT cues, but there is no WebVTT. Make sure vtt.js is loaded.")}}class VTTSegmentLoader extends SegmentLoader{constructor(settings){super(settings,arguments.length>1&&void 0!==arguments[1]?arguments[1]:{}),this.mediaSource_=null,this.subtitlesTrack_=null,this.loaderType_="subtitle",this.featuresNativeTextTracks_=settings.featuresNativeTextTracks,this.loadVttJs=settings.loadVttJs,this.shouldSaveSegmentTimingInfo_=!1}createTransmuxer_(){return null}buffered_(){if(!this.subtitlesTrack_||!this.subtitlesTrack_.cues||!this.subtitlesTrack_.cues.length)return createTimeRanges();const cues=this.subtitlesTrack_.cues;return createTimeRanges([[cues[0].startTime,cues[cues.length-1].startTime]])}initSegmentForMap(map){let set=arguments.length>1&&void 0!==arguments[1]&&arguments[1];if(!map)return null;const id=initSegmentId(map);let storedMap=this.initSegments_[id];if(set&&!storedMap&&map.bytes){const combinedByteLength=VTT_LINE_TERMINATORS.byteLength+map.bytes.byteLength,combinedSegment=new Uint8Array(combinedByteLength);combinedSegment.set(map.bytes),combinedSegment.set(VTT_LINE_TERMINATORS,map.bytes.byteLength),this.initSegments_[id]=storedMap={resolvedUri:map.resolvedUri,byterange:map.byterange,bytes:combinedSegment}}return storedMap||map}couldBeginLoading_(){return this.playlist_&&this.subtitlesTrack_&&!this.paused()}init_(){return this.state="READY",this.resetEverything(),this.monitorBuffer_()}track(track){return void 0===track||(this.subtitlesTrack_=track,"INIT"===this.state&&this.couldBeginLoading_()&&this.init_()),this.subtitlesTrack_}remove(start,end){removeCuesFromTrack(start,end,this.subtitlesTrack_)}fillBuffer_(){const segmentInfo=this.chooseNextRequest_();if(segmentInfo){if(null===this.syncController_.timestampOffsetForTimeline(segmentInfo.timeline)){const checkTimestampOffset=()=>{this.state="READY",this.paused()||this.monitorBuffer_()};return this.syncController_.one("timestampoffset",checkTimestampOffset),void(this.state="WAITING_ON_TIMELINE")}this.loadSegment_(segmentInfo)}}timestampOffsetForSegment_(){return null}chooseNextRequest_(){return this.skipEmptySegments_(super.chooseNextRequest_())}skipEmptySegments_(segmentInfo){for(;segmentInfo&&segmentInfo.segment.empty;){if(segmentInfo.mediaIndex+1>=segmentInfo.playlist.segments.length){segmentInfo=null;break}segmentInfo=this.generateSegmentInfo_({playlist:segmentInfo.playlist,mediaIndex:segmentInfo.mediaIndex+1,startOfSegment:segmentInfo.startOfSegment+segmentInfo.duration,isSyncRequest:segmentInfo.isSyncRequest})}return segmentInfo}stopForError(error){this.error(error),this.state="READY",this.pause(),this.trigger("error")}segmentRequestFinished_(error,simpleSegment,result){if(!this.subtitlesTrack_)return void(this.state="READY");if(this.saveTransferStats_(simpleSegment.stats),!this.pendingSegment_)return this.state="READY",void(this.mediaRequestsAborted+=1);if(error)return error.code===REQUEST_ERRORS_TIMEOUT&&this.handleTimeout_(),error.code===REQUEST_ERRORS_ABORTED?this.mediaRequestsAborted+=1:this.mediaRequestsErrored+=1,void this.stopForError(error);const segmentInfo=this.pendingSegment_;this.saveBandwidthRelatedStats_(segmentInfo.duration,simpleSegment.stats),simpleSegment.key&&this.segmentKey(simpleSegment.key,!0),this.state="APPENDING",this.trigger("appending");const segment=segmentInfo.segment;if(segment.map&&(segment.map.bytes=simpleSegment.map.bytes),segmentInfo.bytes=simpleSegment.bytes,"function"!=typeof window.WebVTT&&"function"==typeof this.loadVttJs)return this.state="WAITING_ON_VTTJS",void this.loadVttJs().then((()=>this.segmentRequestFinished_(error,simpleSegment,result)),(()=>this.stopForError({message:"Error loading vtt.js"})));segment.requested=!0;try{this.parseVTTCues_(segmentInfo)}catch(e){return void this.stopForError({message:e.message})}if(this.updateTimeMapping_(segmentInfo,this.syncController_.timelines[segmentInfo.timeline],this.playlist_),segmentInfo.cues.length?segmentInfo.timingInfo={start:segmentInfo.cues[0].startTime,end:segmentInfo.cues[segmentInfo.cues.length-1].endTime}:segmentInfo.timingInfo={start:segmentInfo.startOfSegment,end:segmentInfo.startOfSegment+segmentInfo.duration},segmentInfo.isSyncRequest)return this.trigger("syncinfoupdate"),this.pendingSegment_=null,void(this.state="READY");segmentInfo.byteLength=segmentInfo.bytes.byteLength,this.mediaSecondsLoaded+=segment.duration,segmentInfo.cues.forEach((cue=>{this.subtitlesTrack_.addCue(this.featuresNativeTextTracks_?new window.VTTCue(cue.startTime,cue.endTime,cue.text):cue)})),function(track){const cues=track.cues;if(cues)for(let i=0;i<cues.length;i++){const duplicates=[];let occurrences=0;for(let j=0;j<cues.length;j++)cues[i].startTime===cues[j].startTime&&cues[i].endTime===cues[j].endTime&&cues[i].text===cues[j].text&&(occurrences++,occurrences>1&&duplicates.push(cues[j]));duplicates.length&&duplicates.forEach((dupe=>track.removeCue(dupe)))}}(this.subtitlesTrack_),this.handleAppendsDone_()}handleData_(){}updateTimingInfoEnd_(){}parseVTTCues_(segmentInfo){let decoder,decodeBytesToString=!1;if("function"!=typeof window.WebVTT)throw new NoVttJsError;"function"==typeof window.TextDecoder?decoder=new window.TextDecoder("utf8"):(decoder=window.WebVTT.StringDecoder(),decodeBytesToString=!0);const parser=new window.WebVTT.Parser(window,window.vttjs,decoder);if(segmentInfo.cues=[],segmentInfo.timestampmap={MPEGTS:0,LOCAL:0},parser.oncue=segmentInfo.cues.push.bind(segmentInfo.cues),parser.ontimestampmap=map=>{segmentInfo.timestampmap=map},parser.onparsingerror=error=>{videojs.log.warn("Error encountered when parsing cues: "+error.message)},segmentInfo.segment.map){let mapData=segmentInfo.segment.map.bytes;decodeBytesToString&&(mapData=uint8ToUtf8(mapData)),parser.parse(mapData)}let segmentData=segmentInfo.bytes;decodeBytesToString&&(segmentData=uint8ToUtf8(segmentData)),parser.parse(segmentData),parser.flush()}updateTimeMapping_(segmentInfo,mappingObj,playlist){const segment=segmentInfo.segment;if(!mappingObj)return;if(!segmentInfo.cues.length)return void(segment.empty=!0);const timestampmap=segmentInfo.timestampmap,diff=timestampmap.MPEGTS/clock_1-timestampmap.LOCAL+mappingObj.mapping;if(segmentInfo.cues.forEach((cue=>{cue.startTime+=diff,cue.endTime+=diff})),!playlist.syncInfo){const firstStart=segmentInfo.cues[0].startTime,lastStart=segmentInfo.cues[segmentInfo.cues.length-1].startTime;playlist.syncInfo={mediaSequence:playlist.mediaSequence+segmentInfo.mediaIndex,time:Math.min(firstStart,lastStart-segment.duration)}}}}const findAdCue=function(track,mediaTime){const cues=track.cues;for(let i=0;i<cues.length;i++){const cue=cues[i];if(mediaTime>=cue.adStartTime&&mediaTime<=cue.adEndTime)return cue}return null},syncPointStrategies=[{name:"VOD",run:(syncController,playlist,duration,currentTimeline,currentTime)=>{if(duration!==1/0){return{time:0,segmentIndex:0,partIndex:null}}return null}},{name:"ProgramDateTime",run:(syncController,playlist,duration,currentTimeline,currentTime)=>{if(!Object.keys(syncController.timelineToDatetimeMappings).length)return null;let syncPoint=null,lastDistance=null;const partsAndSegments=getPartsAndSegments(playlist);currentTime=currentTime||0;for(let i=0;i<partsAndSegments.length;i++){const partAndSegment=partsAndSegments[playlist.endList||0===currentTime?i:partsAndSegments.length-(i+1)],segment=partAndSegment.segment,datetimeMapping=syncController.timelineToDatetimeMappings[segment.timeline];if(!datetimeMapping||!segment.dateTimeObject)continue;let start=segment.dateTimeObject.getTime()/1e3+datetimeMapping;if(segment.parts&&"number"==typeof partAndSegment.partIndex)for(let z=0;z<partAndSegment.partIndex;z++)start+=segment.parts[z].duration;const distance=Math.abs(currentTime-start);if(null!==lastDistance&&(0===distance||lastDistance<distance))break;lastDistance=distance,syncPoint={time:start,segmentIndex:partAndSegment.segmentIndex,partIndex:partAndSegment.partIndex}}return syncPoint}},{name:"Segment",run:(syncController,playlist,duration,currentTimeline,currentTime)=>{let syncPoint=null,lastDistance=null;currentTime=currentTime||0;const partsAndSegments=getPartsAndSegments(playlist);for(let i=0;i<partsAndSegments.length;i++){const partAndSegment=partsAndSegments[playlist.endList||0===currentTime?i:partsAndSegments.length-(i+1)],segment=partAndSegment.segment,start=partAndSegment.part&&partAndSegment.part.start||segment&&segment.start;if(segment.timeline===currentTimeline&&void 0!==start){const distance=Math.abs(currentTime-start);if(null!==lastDistance&&lastDistance<distance)break;(!syncPoint||null===lastDistance||lastDistance>=distance)&&(lastDistance=distance,syncPoint={time:start,segmentIndex:partAndSegment.segmentIndex,partIndex:partAndSegment.partIndex})}}return syncPoint}},{name:"Discontinuity",run:(syncController,playlist,duration,currentTimeline,currentTime)=>{let syncPoint=null;if(currentTime=currentTime||0,playlist.discontinuityStarts&&playlist.discontinuityStarts.length){let lastDistance=null;for(let i=0;i<playlist.discontinuityStarts.length;i++){const segmentIndex=playlist.discontinuityStarts[i],discontinuity=playlist.discontinuitySequence+i+1,discontinuitySync=syncController.discontinuities[discontinuity];if(discontinuitySync){const distance=Math.abs(currentTime-discontinuitySync.time);if(null!==lastDistance&&lastDistance<distance)break;(!syncPoint||null===lastDistance||lastDistance>=distance)&&(lastDistance=distance,syncPoint={time:discontinuitySync.time,segmentIndex:segmentIndex,partIndex:null})}}}return syncPoint}},{name:"Playlist",run:(syncController,playlist,duration,currentTimeline,currentTime)=>{if(playlist.syncInfo){return{time:playlist.syncInfo.time,segmentIndex:playlist.syncInfo.mediaSequence-playlist.mediaSequence,partIndex:null}}return null}}];class SyncController extends videojs.EventTarget{constructor(){super(),this.timelines=[],this.discontinuities=[],this.timelineToDatetimeMappings={},this.logger_=logger("SyncController")}getSyncPoint(playlist,duration,currentTimeline,currentTime){const syncPoints=this.runStrategies_(playlist,duration,currentTimeline,currentTime);return syncPoints.length?this.selectSyncPoint_(syncPoints,{key:"time",value:currentTime}):null}getExpiredTime(playlist,duration){if(!playlist||!playlist.segments)return null;const syncPoints=this.runStrategies_(playlist,duration,playlist.discontinuitySequence,0);if(!syncPoints.length)return null;const syncPoint=this.selectSyncPoint_(syncPoints,{key:"segmentIndex",value:0});return syncPoint.segmentIndex>0&&(syncPoint.time*=-1),Math.abs(syncPoint.time+sumDurations({defaultDuration:playlist.targetDuration,durationList:playlist.segments,startIndex:syncPoint.segmentIndex,endIndex:0}))}runStrategies_(playlist,duration,currentTimeline,currentTime){const syncPoints=[];for(let i=0;i<syncPointStrategies.length;i++){const strategy=syncPointStrategies[i],syncPoint=strategy.run(this,playlist,duration,currentTimeline,currentTime);syncPoint&&(syncPoint.strategy=strategy.name,syncPoints.push({strategy:strategy.name,syncPoint:syncPoint}))}return syncPoints}selectSyncPoint_(syncPoints,target){let bestSyncPoint=syncPoints[0].syncPoint,bestDistance=Math.abs(syncPoints[0].syncPoint[target.key]-target.value),bestStrategy=syncPoints[0].strategy;for(let i=1;i<syncPoints.length;i++){const newDistance=Math.abs(syncPoints[i].syncPoint[target.key]-target.value);newDistance<bestDistance&&(bestDistance=newDistance,bestSyncPoint=syncPoints[i].syncPoint,bestStrategy=syncPoints[i].strategy)}return this.logger_("syncPoint for [".concat(target.key,": ").concat(target.value,"] chosen with strategy")+" [".concat(bestStrategy,"]: [time:").concat(bestSyncPoint.time,",")+" segmentIndex:".concat(bestSyncPoint.segmentIndex)+("number"==typeof bestSyncPoint.partIndex?",partIndex:".concat(bestSyncPoint.partIndex):"")+"]"),bestSyncPoint}saveExpiredSegmentInfo(oldPlaylist,newPlaylist){const mediaSequenceDiff=newPlaylist.mediaSequence-oldPlaylist.mediaSequence;if(mediaSequenceDiff>86400)videojs.log.warn("Not saving expired segment info. Media sequence gap ".concat(mediaSequenceDiff," is too large."));else for(let i=mediaSequenceDiff-1;i>=0;i--){const lastRemovedSegment=oldPlaylist.segments[i];if(lastRemovedSegment&&void 0!==lastRemovedSegment.start){newPlaylist.syncInfo={mediaSequence:oldPlaylist.mediaSequence+i,time:lastRemovedSegment.start},this.logger_("playlist refresh sync: [time:".concat(newPlaylist.syncInfo.time,",")+" mediaSequence: ".concat(newPlaylist.syncInfo.mediaSequence,"]")),this.trigger("syncinfoupdate");break}}}setDateTimeMappingForStart(playlist){if(this.timelineToDatetimeMappings={},playlist.segments&&playlist.segments.length&&playlist.segments[0].dateTimeObject){const firstSegment=playlist.segments[0],playlistTimestamp=firstSegment.dateTimeObject.getTime()/1e3;this.timelineToDatetimeMappings[firstSegment.timeline]=-playlistTimestamp}}saveSegmentTimingInfo(_ref73){let{segmentInfo:segmentInfo,shouldSaveTimelineMapping:shouldSaveTimelineMapping}=_ref73;const didCalculateSegmentTimeMapping=this.calculateSegmentTimeMapping_(segmentInfo,segmentInfo.timingInfo,shouldSaveTimelineMapping),segment=segmentInfo.segment;didCalculateSegmentTimeMapping&&(this.saveDiscontinuitySyncInfo_(segmentInfo),segmentInfo.playlist.syncInfo||(segmentInfo.playlist.syncInfo={mediaSequence:segmentInfo.playlist.mediaSequence+segmentInfo.mediaIndex,time:segment.start}));const dateTime=segment.dateTimeObject;segment.discontinuity&&shouldSaveTimelineMapping&&dateTime&&(this.timelineToDatetimeMappings[segment.timeline]=-dateTime.getTime()/1e3)}timestampOffsetForTimeline(timeline){return void 0===this.timelines[timeline]?null:this.timelines[timeline].time}mappingForTimeline(timeline){return void 0===this.timelines[timeline]?null:this.timelines[timeline].mapping}calculateSegmentTimeMapping_(segmentInfo,timingInfo,shouldSaveTimelineMapping){const segment=segmentInfo.segment,part=segmentInfo.part;let start,end,mappingObj=this.timelines[segmentInfo.timeline];if("number"==typeof segmentInfo.timestampOffset)mappingObj={time:segmentInfo.startOfSegment,mapping:segmentInfo.startOfSegment-timingInfo.start},shouldSaveTimelineMapping&&(this.timelines[segmentInfo.timeline]=mappingObj,this.trigger("timestampoffset"),this.logger_("time mapping for timeline ".concat(segmentInfo.timeline,": ")+"[time: ".concat(mappingObj.time,"] [mapping: ").concat(mappingObj.mapping,"]"))),start=segmentInfo.startOfSegment,end=timingInfo.end+mappingObj.mapping;else{if(!mappingObj)return!1;start=timingInfo.start+mappingObj.mapping,end=timingInfo.end+mappingObj.mapping}return part&&(part.start=start,part.end=end),(!segment.start||start<segment.start)&&(segment.start=start),segment.end=end,!0}saveDiscontinuitySyncInfo_(segmentInfo){const playlist=segmentInfo.playlist,segment=segmentInfo.segment;if(segment.discontinuity)this.discontinuities[segment.timeline]={time:segment.start,accuracy:0};else if(playlist.discontinuityStarts&&playlist.discontinuityStarts.length)for(let i=0;i<playlist.discontinuityStarts.length;i++){const segmentIndex=playlist.discontinuityStarts[i],discontinuity=playlist.discontinuitySequence+i+1,mediaIndexDiff=segmentIndex-segmentInfo.mediaIndex,accuracy=Math.abs(mediaIndexDiff);if(!this.discontinuities[discontinuity]||this.discontinuities[discontinuity].accuracy>accuracy){let time;time=mediaIndexDiff<0?segment.start-sumDurations({defaultDuration:playlist.targetDuration,durationList:playlist.segments,startIndex:segmentInfo.mediaIndex,endIndex:segmentIndex}):segment.end+sumDurations({defaultDuration:playlist.targetDuration,durationList:playlist.segments,startIndex:segmentInfo.mediaIndex+1,endIndex:segmentIndex}),this.discontinuities[discontinuity]={time:time,accuracy:accuracy}}}}dispose(){this.trigger("dispose"),this.off()}}class TimelineChangeController extends videojs.EventTarget{constructor(){super(),this.pendingTimelineChanges_={},this.lastTimelineChanges_={}}clearPendingTimelineChange(type){this.pendingTimelineChanges_[type]=null,this.trigger("pendingtimelinechange")}pendingTimelineChange(_ref74){let{type:type,from:from,to:to}=_ref74;return"number"==typeof from&&"number"==typeof to&&(this.pendingTimelineChanges_[type]={type:type,from:from,to:to},this.trigger("pendingtimelinechange")),this.pendingTimelineChanges_[type]}lastTimelineChange(_ref75){let{type:type,from:from,to:to}=_ref75;return"number"==typeof from&&"number"==typeof to&&(this.lastTimelineChanges_[type]={type:type,from:from,to:to},delete this.pendingTimelineChanges_[type],this.trigger("timelinechange")),this.lastTimelineChanges_[type]}dispose(){this.trigger("dispose"),this.pendingTimelineChanges_={},this.lastTimelineChanges_={},this.off()}}const workerCode=transform(getWorkerString((function(){var Stream=function(){function Stream(){this.listeners={}}var _proto=Stream.prototype;return _proto.on=function(type,listener){this.listeners[type]||(this.listeners[type]=[]),this.listeners[type].push(listener)},_proto.off=function(type,listener){if(!this.listeners[type])return!1;var index=this.listeners[type].indexOf(listener);return this.listeners[type]=this.listeners[type].slice(0),this.listeners[type].splice(index,1),index>-1},_proto.trigger=function(type){var callbacks=this.listeners[type];if(callbacks)if(2===arguments.length)for(var length=callbacks.length,i=0;i<length;++i)callbacks[i].call(this,arguments[1]);else for(var args=Array.prototype.slice.call(arguments,1),_length=callbacks.length,_i=0;_i<_length;++_i)callbacks[_i].apply(this,args)},_proto.dispose=function(){this.listeners={}},_proto.pipe=function(destination){this.on("data",(function(data){destination.push(data)}))},Stream}();
+/*! @name pkcs7 @version 1.0.4 @license Apache-2.0 */let aesTables=null;class AES{constructor(key){let i,j,tmp;aesTables||(aesTables=function(){const tables=[[[],[],[],[],[]],[[],[],[],[],[]]],encTable=tables[0],decTable=tables[1],sbox=encTable[4],sboxInv=decTable[4];let i,x,xInv;const d=[],th=[];let x2,x4,x8,s,tEnc,tDec;for(i=0;i<256;i++)th[(d[i]=i<<1^283*(i>>7))^i]=i;for(x=xInv=0;!sbox[x];x^=x2||1,xInv=th[xInv]||1)for(s=xInv^xInv<<1^xInv<<2^xInv<<3^xInv<<4,s=s>>8^255&s^99,sbox[x]=s,sboxInv[s]=x,x8=d[x4=d[x2=d[x]]],tDec=16843009*x8^65537*x4^257*x2^16843008*x,tEnc=257*d[s]^16843008*s,i=0;i<4;i++)encTable[i][x]=tEnc=tEnc<<24^tEnc>>>8,decTable[i][s]=tDec=tDec<<24^tDec>>>8;for(i=0;i<5;i++)encTable[i]=encTable[i].slice(0),decTable[i]=decTable[i].slice(0);return tables}()),this._tables=[[aesTables[0][0].slice(),aesTables[0][1].slice(),aesTables[0][2].slice(),aesTables[0][3].slice(),aesTables[0][4].slice()],[aesTables[1][0].slice(),aesTables[1][1].slice(),aesTables[1][2].slice(),aesTables[1][3].slice(),aesTables[1][4].slice()]];const sbox=this._tables[0][4],decTable=this._tables[1],keyLen=key.length;let rcon=1;if(4!==keyLen&&6!==keyLen&&8!==keyLen)throw new Error("Invalid aes key size");const encKey=key.slice(0),decKey=[];for(this._key=[encKey,decKey],i=keyLen;i<4*keyLen+28;i++)tmp=encKey[i-1],(i%keyLen==0||8===keyLen&&i%keyLen==4)&&(tmp=sbox[tmp>>>24]<<24^sbox[tmp>>16&255]<<16^sbox[tmp>>8&255]<<8^sbox[255&tmp],i%keyLen==0&&(tmp=tmp<<8^tmp>>>24^rcon<<24,rcon=rcon<<1^283*(rcon>>7))),encKey[i]=encKey[i-keyLen]^tmp;for(j=0;i;j++,i--)tmp=encKey[3&j?i:i-4],decKey[j]=i<=4||j<4?tmp:decTable[0][sbox[tmp>>>24]]^decTable[1][sbox[tmp>>16&255]]^decTable[2][sbox[tmp>>8&255]]^decTable[3][sbox[255&tmp]]}decrypt(encrypted0,encrypted1,encrypted2,encrypted3,out,offset){const key=this._key[1];let a2,b2,c2,a=encrypted0^key[0],b=encrypted3^key[1],c=encrypted2^key[2],d=encrypted1^key[3];const nInnerRounds=key.length/4-2;let i,kIndex=4;const table=this._tables[1],table0=table[0],table1=table[1],table2=table[2],table3=table[3],sbox=table[4];for(i=0;i<nInnerRounds;i++)a2=table0[a>>>24]^table1[b>>16&255]^table2[c>>8&255]^table3[255&d]^key[kIndex],b2=table0[b>>>24]^table1[c>>16&255]^table2[d>>8&255]^table3[255&a]^key[kIndex+1],c2=table0[c>>>24]^table1[d>>16&255]^table2[a>>8&255]^table3[255&b]^key[kIndex+2],d=table0[d>>>24]^table1[a>>16&255]^table2[b>>8&255]^table3[255&c]^key[kIndex+3],kIndex+=4,a=a2,b=b2,c=c2;for(i=0;i<4;i++)out[(3&-i)+offset]=sbox[a>>>24]<<24^sbox[b>>16&255]<<16^sbox[c>>8&255]<<8^sbox[255&d]^key[kIndex++],a2=a,a=b,b=c,c=d,d=a2}}class AsyncStream extends Stream{constructor(){super(Stream),this.jobs=[],this.delay=1,this.timeout_=null}processJob_(){this.jobs.shift()(),this.jobs.length?this.timeout_=setTimeout(this.processJob_.bind(this),this.delay):this.timeout_=null}push(job){this.jobs.push(job),this.timeout_||(this.timeout_=setTimeout(this.processJob_.bind(this),this.delay))}}const ntoh=function(word){return word<<24|(65280&word)<<8|(16711680&word)>>8|word>>>24};class Decrypter{constructor(encrypted,key,initVector,done){const step=Decrypter.STEP,encrypted32=new Int32Array(encrypted.buffer),decrypted=new Uint8Array(encrypted.byteLength);let i=0;for(this.asyncStream_=new AsyncStream,this.asyncStream_.push(this.decryptChunk_(encrypted32.subarray(i,i+step),key,initVector,decrypted)),i=step;i<encrypted32.length;i+=step)initVector=new Uint32Array([ntoh(encrypted32[i-4]),ntoh(encrypted32[i-3]),ntoh(encrypted32[i-2]),ntoh(encrypted32[i-1])]),this.asyncStream_.push(this.decryptChunk_(encrypted32.subarray(i,i+step),key,initVector,decrypted));this.asyncStream_.push((function(){var padded;
+/*! @name aes-decrypter @version 4.0.1 @license Apache-2.0 */done(null,(padded=decrypted).subarray(0,padded.byteLength-padded[padded.byteLength-1]))}))}static get STEP(){return 32e3}decryptChunk_(encrypted,key,initVector,decrypted){return function(){const bytes=function(encrypted,key,initVector){const encrypted32=new Int32Array(encrypted.buffer,encrypted.byteOffset,encrypted.byteLength>>2),decipher=new AES(Array.prototype.slice.call(key)),decrypted=new Uint8Array(encrypted.byteLength),decrypted32=new Int32Array(decrypted.buffer);let init0,init1,init2,init3,encrypted0,encrypted1,encrypted2,encrypted3,wordIx;for(init0=initVector[0],init1=initVector[1],init2=initVector[2],init3=initVector[3],wordIx=0;wordIx<encrypted32.length;wordIx+=4)encrypted0=ntoh(encrypted32[wordIx]),encrypted1=ntoh(encrypted32[wordIx+1]),encrypted2=ntoh(encrypted32[wordIx+2]),encrypted3=ntoh(encrypted32[wordIx+3]),decipher.decrypt(encrypted0,encrypted1,encrypted2,encrypted3,decrypted32,wordIx),decrypted32[wordIx]=ntoh(decrypted32[wordIx]^init0),decrypted32[wordIx+1]=ntoh(decrypted32[wordIx+1]^init1),decrypted32[wordIx+2]=ntoh(decrypted32[wordIx+2]^init2),decrypted32[wordIx+3]=ntoh(decrypted32[wordIx+3]^init3),init0=encrypted0,init1=encrypted1,init2=encrypted2,init3=encrypted3;return decrypted}(encrypted,key,initVector);decrypted.set(bytes,encrypted.byteOffset)}}}var win,commonjsGlobal="undefined"!=typeof globalThis?globalThis:"undefined"!=typeof window?window:"undefined"!=typeof global?global:"undefined"!=typeof self?self:{};win="undefined"!=typeof window?window:void 0!==commonjsGlobal?commonjsGlobal:"undefined"!=typeof self?self:{};var BigInt=win.BigInt||Number;BigInt("0x1"),BigInt("0x100"),BigInt("0x10000"),BigInt("0x1000000"),BigInt("0x100000000"),BigInt("0x10000000000"),BigInt("0x1000000000000"),BigInt("0x100000000000000"),BigInt("0x10000000000000000"),function(){var a=new Uint16Array([65484]),b=new Uint8Array(a.buffer,a.byteOffset,a.byteLength);255===b[0]||b[0]}();const createTransferableMessage=function(message){const transferable={};return Object.keys(message).forEach((key=>{const value=message[key];var obj;obj=value,("function"===ArrayBuffer.isView?ArrayBuffer.isView(obj):obj&&obj.buffer instanceof ArrayBuffer)?transferable[key]={bytes:value.buffer,byteOffset:value.byteOffset,byteLength:value.byteLength}:transferable[key]=value})),transferable};self.onmessage=function(event){const data=event.data,encrypted=new Uint8Array(data.encrypted.bytes,data.encrypted.byteOffset,data.encrypted.byteLength),key=new Uint32Array(data.key.bytes,data.key.byteOffset,data.key.byteLength/4),iv=new Uint32Array(data.iv.bytes,data.iv.byteOffset,data.iv.byteLength/4);new Decrypter(encrypted,key,iv,(function(err,bytes){self.postMessage(createTransferableMessage({source:data.source,decrypted:bytes}),[bytes.buffer])}))}})));var Decrypter=factory(workerCode);const audioTrackKind_=properties=>{let kind=properties.default?"main":"alternative";return properties.characteristics&&properties.characteristics.indexOf("public.accessibility.describes-video")>=0&&(kind="main-desc"),kind},stopLoaders=(segmentLoader,mediaType)=>{segmentLoader.abort(),segmentLoader.pause(),mediaType&&mediaType.activePlaylistLoader&&(mediaType.activePlaylistLoader.pause(),mediaType.activePlaylistLoader=null)},startLoaders=(playlistLoader,mediaType)=>{mediaType.activePlaylistLoader=playlistLoader,playlistLoader.load()},onError={AUDIO:(type,settings)=>()=>{const{segmentLoaders:{[type]:segmentLoader},mediaTypes:{[type]:mediaType},excludePlaylist:excludePlaylist}=settings;stopLoaders(segmentLoader,mediaType);const activeTrack=mediaType.activeTrack(),activeGroup=mediaType.activeGroup(),id=(activeGroup.filter((group=>group.default))[0]||activeGroup[0]).id,defaultTrack=mediaType.tracks[id];if(activeTrack!==defaultTrack){videojs.log.warn("Problem encountered loading the alternate audio track.Switching back to default.");for(const trackId in mediaType.tracks)mediaType.tracks[trackId].enabled=mediaType.tracks[trackId]===defaultTrack;mediaType.onTrackChanged()}else excludePlaylist({error:{message:"Problem encountered loading the default audio track."}})},SUBTITLES:(type,settings)=>()=>{const{segmentLoaders:{[type]:segmentLoader},mediaTypes:{[type]:mediaType}}=settings;videojs.log.warn("Problem encountered loading the subtitle track.Disabling subtitle track."),stopLoaders(segmentLoader,mediaType);const track=mediaType.activeTrack();track&&(track.mode="disabled"),mediaType.onTrackChanged()}},setupListeners={AUDIO:(type,playlistLoader,settings)=>{if(!playlistLoader)return;const{tech:tech,requestOptions:requestOptions,segmentLoaders:{[type]:segmentLoader}}=settings;playlistLoader.on("loadedmetadata",(()=>{const media=playlistLoader.media();segmentLoader.playlist(media,requestOptions),(!tech.paused()||media.endList&&"none"!==tech.preload())&&segmentLoader.load()})),playlistLoader.on("loadedplaylist",(()=>{segmentLoader.playlist(playlistLoader.media(),requestOptions),tech.paused()||segmentLoader.load()})),playlistLoader.on("error",onError[type](type,settings))},SUBTITLES:(type,playlistLoader,settings)=>{const{tech:tech,requestOptions:requestOptions,segmentLoaders:{[type]:segmentLoader},mediaTypes:{[type]:mediaType}}=settings;playlistLoader.on("loadedmetadata",(()=>{const media=playlistLoader.media();segmentLoader.playlist(media,requestOptions),segmentLoader.track(mediaType.activeTrack()),(!tech.paused()||media.endList&&"none"!==tech.preload())&&segmentLoader.load()})),playlistLoader.on("loadedplaylist",(()=>{segmentLoader.playlist(playlistLoader.media(),requestOptions),tech.paused()||segmentLoader.load()})),playlistLoader.on("error",onError[type](type,settings))}},initialize={AUDIO:(type,settings)=>{const{vhs:vhs,sourceType:sourceType,segmentLoaders:{[type]:segmentLoader},requestOptions:requestOptions,main:{mediaGroups:mediaGroups},mediaTypes:{[type]:{groups:groups,tracks:tracks,logger_:logger_}},mainPlaylistLoader:mainPlaylistLoader}=settings,audioOnlyMain=isAudioOnly(mainPlaylistLoader.main);mediaGroups[type]&&0!==Object.keys(mediaGroups[type]).length||(mediaGroups[type]={main:{default:{default:!0}}},audioOnlyMain&&(mediaGroups[type].main.default.playlists=mainPlaylistLoader.main.playlists));for(const groupId in mediaGroups[type]){groups[groupId]||(groups[groupId]=[]);for(const variantLabel in mediaGroups[type][groupId]){let playlistLoader,properties=mediaGroups[type][groupId][variantLabel];if(audioOnlyMain?(logger_("AUDIO group '".concat(groupId,"' label '").concat(variantLabel,"' is a main playlist")),properties.isMainPlaylist=!0,playlistLoader=null):playlistLoader="vhs-json"===sourceType&&properties.playlists?new PlaylistLoader(properties.playlists[0],vhs,requestOptions):properties.resolvedUri?new PlaylistLoader(properties.resolvedUri,vhs,requestOptions):properties.playlists&&"dash"===sourceType?new DashPlaylistLoader(properties.playlists[0],vhs,requestOptions,mainPlaylistLoader):null,properties=merge({id:variantLabel,playlistLoader:playlistLoader},properties),setupListeners[type](type,properties.playlistLoader,settings),groups[groupId].push(properties),void 0===tracks[variantLabel]){const track=new videojs.AudioTrack({id:variantLabel,kind:audioTrackKind_(properties),enabled:!1,language:properties.language,default:properties.default,label:variantLabel});tracks[variantLabel]=track}}}segmentLoader.on("error",onError[type](type,settings))},SUBTITLES:(type,settings)=>{const{tech:tech,vhs:vhs,sourceType:sourceType,segmentLoaders:{[type]:segmentLoader},requestOptions:requestOptions,main:{mediaGroups:mediaGroups},mediaTypes:{[type]:{groups:groups,tracks:tracks}},mainPlaylistLoader:mainPlaylistLoader}=settings;for(const groupId in mediaGroups[type]){groups[groupId]||(groups[groupId]=[]);for(const variantLabel in mediaGroups[type][groupId]){if(mediaGroups[type][groupId][variantLabel].forced)continue;let playlistLoader,properties=mediaGroups[type][groupId][variantLabel];if("hls"===sourceType)playlistLoader=new PlaylistLoader(properties.resolvedUri,vhs,requestOptions);else if("dash"===sourceType){if(!properties.playlists.filter((p=>p.excludeUntil!==1/0)).length)return;playlistLoader=new DashPlaylistLoader(properties.playlists[0],vhs,requestOptions,mainPlaylistLoader)}else"vhs-json"===sourceType&&(playlistLoader=new PlaylistLoader(properties.playlists?properties.playlists[0]:properties.resolvedUri,vhs,requestOptions));if(properties=merge({id:variantLabel,playlistLoader:playlistLoader},properties),setupListeners[type](type,properties.playlistLoader,settings),groups[groupId].push(properties),void 0===tracks[variantLabel]){const track=tech.addRemoteTextTrack({id:variantLabel,kind:"subtitles",default:properties.default&&properties.autoselect,language:properties.language,label:variantLabel},!1).track;tracks[variantLabel]=track}}}segmentLoader.on("error",onError[type](type,settings))},"CLOSED-CAPTIONS":(type,settings)=>{const{tech:tech,main:{mediaGroups:mediaGroups},mediaTypes:{[type]:{groups:groups,tracks:tracks}}}=settings;for(const groupId in mediaGroups[type]){groups[groupId]||(groups[groupId]=[]);for(const variantLabel in mediaGroups[type][groupId]){const properties=mediaGroups[type][groupId][variantLabel];if(!/^(?:CC|SERVICE)/.test(properties.instreamId))continue;const captionServices=tech.options_.vhs&&tech.options_.vhs.captionServices||{};let newProps={label:variantLabel,language:properties.language,instreamId:properties.instreamId,default:properties.default&&properties.autoselect};if(captionServices[newProps.instreamId]&&(newProps=merge(newProps,captionServices[newProps.instreamId])),void 0===newProps.default&&delete newProps.default,groups[groupId].push(merge({id:variantLabel},properties)),void 0===tracks[variantLabel]){const track=tech.addRemoteTextTrack({id:newProps.instreamId,kind:"captions",default:newProps.default,language:newProps.language,label:newProps.label},!1).track;tracks[variantLabel]=track}}}}},groupMatch=(list,media)=>{for(let i=0;i<list.length;i++){if(playlistMatch(media,list[i]))return!0;if(list[i].playlists&&groupMatch(list[i].playlists,media))return!0}return!1},activeTrack={AUDIO:(type,settings)=>()=>{const{mediaTypes:{[type]:{tracks:tracks}}}=settings;for(const id in tracks)if(tracks[id].enabled)return tracks[id];return null},SUBTITLES:(type,settings)=>()=>{const{mediaTypes:{[type]:{tracks:tracks}}}=settings;for(const id in tracks)if("showing"===tracks[id].mode||"hidden"===tracks[id].mode)return tracks[id];return null}},setupMediaGroups=settings=>{["AUDIO","SUBTITLES","CLOSED-CAPTIONS"].forEach((type=>{initialize[type](type,settings)}));const{mediaTypes:mediaTypes,mainPlaylistLoader:mainPlaylistLoader,tech:tech,vhs:vhs,segmentLoaders:{AUDIO:audioSegmentLoader,main:mainSegmentLoader}}=settings;["AUDIO","SUBTITLES"].forEach((type=>{mediaTypes[type].activeGroup=((type,settings)=>track=>{const{mainPlaylistLoader:mainPlaylistLoader,mediaTypes:{[type]:{groups:groups}}}=settings,media=mainPlaylistLoader.media();if(!media)return null;let variants=null;media.attributes[type]&&(variants=groups[media.attributes[type]]);const groupKeys=Object.keys(groups);if(!variants)if("AUDIO"===type&&groupKeys.length>1&&isAudioOnly(settings.main))for(let i=0;i<groupKeys.length;i++){const groupPropertyList=groups[groupKeys[i]];if(groupMatch(groupPropertyList,media)){variants=groupPropertyList;break}}else groups.main?variants=groups.main:1===groupKeys.length&&(variants=groups[groupKeys[0]]);return void 0===track?variants:null!==track&&variants&&variants.filter((props=>props.id===track.id))[0]||null})(type,settings),mediaTypes[type].activeTrack=activeTrack[type](type,settings),mediaTypes[type].onGroupChanged=((type,settings)=>()=>{const{segmentLoaders:{[type]:segmentLoader,main:mainSegmentLoader},mediaTypes:{[type]:mediaType}}=settings,activeTrack=mediaType.activeTrack(),activeGroup=mediaType.getActiveGroup(),previousActiveLoader=mediaType.activePlaylistLoader,lastGroup=mediaType.lastGroup_;activeGroup&&lastGroup&&activeGroup.id===lastGroup.id||(mediaType.lastGroup_=activeGroup,mediaType.lastTrack_=activeTrack,stopLoaders(segmentLoader,mediaType),activeGroup&&!activeGroup.isMainPlaylist&&(activeGroup.playlistLoader?(segmentLoader.resyncLoader(),startLoaders(activeGroup.playlistLoader,mediaType)):previousActiveLoader&&mainSegmentLoader.resetEverything()))})(type,settings),mediaTypes[type].onGroupChanging=((type,settings)=>()=>{const{segmentLoaders:{[type]:segmentLoader},mediaTypes:{[type]:mediaType}}=settings;mediaType.lastGroup_=null,segmentLoader.abort(),segmentLoader.pause()})(type,settings),mediaTypes[type].onTrackChanged=((type,settings)=>()=>{const{mainPlaylistLoader:mainPlaylistLoader,segmentLoaders:{[type]:segmentLoader,main:mainSegmentLoader},mediaTypes:{[type]:mediaType}}=settings,activeTrack=mediaType.activeTrack(),activeGroup=mediaType.getActiveGroup(),previousActiveLoader=mediaType.activePlaylistLoader,lastTrack=mediaType.lastTrack_;if((!lastTrack||!activeTrack||lastTrack.id!==activeTrack.id)&&(mediaType.lastGroup_=activeGroup,mediaType.lastTrack_=activeTrack,stopLoaders(segmentLoader,mediaType),activeGroup)){if(activeGroup.isMainPlaylist){if(!activeTrack||!lastTrack||activeTrack.id===lastTrack.id)return;const pc=settings.vhs.playlistController_,newPlaylist=pc.selectPlaylist();if(pc.media()===newPlaylist)return;return mediaType.logger_("track change. Switching main audio from ".concat(lastTrack.id," to ").concat(activeTrack.id)),mainPlaylistLoader.pause(),mainSegmentLoader.resetEverything(),void pc.fastQualityChange_(newPlaylist)}if("AUDIO"===type){if(!activeGroup.playlistLoader)return mainSegmentLoader.setAudio(!0),void mainSegmentLoader.resetEverything();segmentLoader.setAudio(!0),mainSegmentLoader.setAudio(!1)}previousActiveLoader!==activeGroup.playlistLoader?(segmentLoader.track&&segmentLoader.track(activeTrack),segmentLoader.resetEverything(),startLoaders(activeGroup.playlistLoader,mediaType)):startLoaders(activeGroup.playlistLoader,mediaType)}})(type,settings),mediaTypes[type].getActiveGroup=((type,_ref76)=>{let{mediaTypes:mediaTypes}=_ref76;return()=>{const activeTrack_=mediaTypes[type].activeTrack();return activeTrack_?mediaTypes[type].activeGroup(activeTrack_):null}})(type,settings)}));const audioGroup=mediaTypes.AUDIO.activeGroup();if(audioGroup){const groupId=(audioGroup.filter((group=>group.default))[0]||audioGroup[0]).id;mediaTypes.AUDIO.tracks[groupId].enabled=!0,mediaTypes.AUDIO.onGroupChanged(),mediaTypes.AUDIO.onTrackChanged();mediaTypes.AUDIO.getActiveGroup().playlistLoader?(mainSegmentLoader.setAudio(!1),audioSegmentLoader.setAudio(!0)):mainSegmentLoader.setAudio(!0)}mainPlaylistLoader.on("mediachange",(()=>{["AUDIO","SUBTITLES"].forEach((type=>mediaTypes[type].onGroupChanged()))})),mainPlaylistLoader.on("mediachanging",(()=>{["AUDIO","SUBTITLES"].forEach((type=>mediaTypes[type].onGroupChanging()))}));const onAudioTrackChanged=()=>{mediaTypes.AUDIO.onTrackChanged(),tech.trigger({type:"usage",name:"vhs-audio-change"})};tech.audioTracks().addEventListener("change",onAudioTrackChanged),tech.remoteTextTracks().addEventListener("change",mediaTypes.SUBTITLES.onTrackChanged),vhs.on("dispose",(()=>{tech.audioTracks().removeEventListener("change",onAudioTrackChanged),tech.remoteTextTracks().removeEventListener("change",mediaTypes.SUBTITLES.onTrackChanged)})),tech.clearTracks("audio");for(const id in mediaTypes.AUDIO.tracks)tech.audioTracks().addTrack(mediaTypes.AUDIO.tracks[id])};let Vhs$1;const loaderStats=["mediaRequests","mediaRequestsAborted","mediaRequestsTimedout","mediaRequestsErrored","mediaTransferDuration","mediaBytesTransferred","mediaAppends"],sumLoaderStat=function(stat){return this.audioSegmentLoader_[stat]+this.mainSegmentLoader_[stat]};class PlaylistController extends videojs.EventTarget{constructor(options){super();const{src:src,withCredentials:withCredentials,tech:tech,bandwidth:bandwidth,externVhs:externVhs,useCueTags:useCueTags,playlistExclusionDuration:playlistExclusionDuration,enableLowInitialPlaylist:enableLowInitialPlaylist,sourceType:sourceType,cacheEncryptionKeys:cacheEncryptionKeys,bufferBasedABR:bufferBasedABR,leastPixelDiffSelector:leastPixelDiffSelector,captionServices:captionServices}=options;if(!src)throw new Error("A non-empty playlist URL or JSON manifest string is required");let{maxPlaylistRetries:maxPlaylistRetries}=options;null==maxPlaylistRetries&&(maxPlaylistRetries=1/0),Vhs$1=externVhs,this.bufferBasedABR=Boolean(bufferBasedABR),this.leastPixelDiffSelector=Boolean(leastPixelDiffSelector),this.withCredentials=withCredentials,this.tech_=tech,this.vhs_=tech.vhs,this.sourceType_=sourceType,this.useCueTags_=useCueTags,this.playlistExclusionDuration=playlistExclusionDuration,this.maxPlaylistRetries=maxPlaylistRetries,this.enableLowInitialPlaylist=enableLowInitialPlaylist,this.useCueTags_&&(this.cueTagsTrack_=this.tech_.addTextTrack("metadata","ad-cues"),this.cueTagsTrack_.inBandMetadataTrackDispatchType=""),this.requestOptions_={withCredentials:withCredentials,maxPlaylistRetries:maxPlaylistRetries,timeout:null},this.on("error",this.pauseLoading),this.mediaTypes_=(()=>{const mediaTypes={};return["AUDIO","SUBTITLES","CLOSED-CAPTIONS"].forEach((type=>{mediaTypes[type]={groups:{},tracks:{},activePlaylistLoader:null,activeGroup:noop,activeTrack:noop,getActiveGroup:noop,onGroupChanged:noop,onTrackChanged:noop,lastTrack_:null,logger_:logger("MediaGroups[".concat(type,"]"))}})),mediaTypes})(),this.mediaSource=new window.MediaSource,this.handleDurationChange_=this.handleDurationChange_.bind(this),this.handleSourceOpen_=this.handleSourceOpen_.bind(this),this.handleSourceEnded_=this.handleSourceEnded_.bind(this),this.mediaSource.addEventListener("durationchange",this.handleDurationChange_),this.mediaSource.addEventListener("sourceopen",this.handleSourceOpen_),this.mediaSource.addEventListener("sourceended",this.handleSourceEnded_),this.seekable_=createTimeRanges(),this.hasPlayed_=!1,this.syncController_=new SyncController(options),this.segmentMetadataTrack_=tech.addRemoteTextTrack({kind:"metadata",label:"segment-metadata"},!1).track,this.decrypter_=new Decrypter,this.sourceUpdater_=new SourceUpdater(this.mediaSource),this.inbandTextTracks_={},this.timelineChangeController_=new TimelineChangeController;const segmentLoaderSettings={vhs:this.vhs_,parse708captions:options.parse708captions,useDtsForTimestampOffset:options.useDtsForTimestampOffset,captionServices:captionServices,mediaSource:this.mediaSource,currentTime:this.tech_.currentTime.bind(this.tech_),seekable:()=>this.seekable(),seeking:()=>this.tech_.seeking(),duration:()=>this.duration(),hasPlayed:()=>this.hasPlayed_,goalBufferLength:()=>this.goalBufferLength(),bandwidth:bandwidth,syncController:this.syncController_,decrypter:this.decrypter_,sourceType:this.sourceType_,inbandTextTracks:this.inbandTextTracks_,cacheEncryptionKeys:cacheEncryptionKeys,sourceUpdater:this.sourceUpdater_,timelineChangeController:this.timelineChangeController_,exactManifestTimings:options.exactManifestTimings};this.mainPlaylistLoader_="dash"===this.sourceType_?new DashPlaylistLoader(src,this.vhs_,this.requestOptions_):new PlaylistLoader(src,this.vhs_,this.requestOptions_),this.setupMainPlaylistLoaderListeners_(),this.mainSegmentLoader_=new SegmentLoader(merge(segmentLoaderSettings,{segmentMetadataTrack:this.segmentMetadataTrack_,loaderType:"main"}),options),this.audioSegmentLoader_=new SegmentLoader(merge(segmentLoaderSettings,{loaderType:"audio"}),options),this.subtitleSegmentLoader_=new VTTSegmentLoader(merge(segmentLoaderSettings,{loaderType:"vtt",featuresNativeTextTracks:this.tech_.featuresNativeTextTracks,loadVttJs:()=>new Promise(((resolve,reject)=>{function onLoad(){tech.off("vttjserror",onError),resolve()}function onError(){tech.off("vttjsloaded",onLoad),reject()}tech.one("vttjsloaded",onLoad),tech.one("vttjserror",onError),tech.addWebVttScript_()}))}),options),this.setupSegmentLoaderListeners_(),this.bufferBasedABR&&(this.mainPlaylistLoader_.one("loadedplaylist",(()=>this.startABRTimer_())),this.tech_.on("pause",(()=>this.stopABRTimer_())),this.tech_.on("play",(()=>this.startABRTimer_()))),loaderStats.forEach((stat=>{this[stat+"_"]=sumLoaderStat.bind(this,stat)})),this.logger_=logger("pc"),this.triggeredFmp4Usage=!1,"none"===this.tech_.preload()?(this.loadOnPlay_=()=>{this.loadOnPlay_=null,this.mainPlaylistLoader_.load()},this.tech_.one("play",this.loadOnPlay_)):this.mainPlaylistLoader_.load(),this.timeToLoadedData__=-1,this.mainAppendsToLoadedData__=-1,this.audioAppendsToLoadedData__=-1;const event="none"===this.tech_.preload()?"play":"loadstart";this.tech_.one(event,(()=>{const timeToLoadedDataStart=Date.now();this.tech_.one("loadeddata",(()=>{this.timeToLoadedData__=Date.now()-timeToLoadedDataStart,this.mainAppendsToLoadedData__=this.mainSegmentLoader_.mediaAppends,this.audioAppendsToLoadedData__=this.audioSegmentLoader_.mediaAppends}))}))}mainAppendsToLoadedData_(){return this.mainAppendsToLoadedData__}audioAppendsToLoadedData_(){return this.audioAppendsToLoadedData__}appendsToLoadedData_(){const main=this.mainAppendsToLoadedData_(),audio=this.audioAppendsToLoadedData_();return-1===main||-1===audio?-1:main+audio}timeToLoadedData_(){return this.timeToLoadedData__}checkABR_(){let reason=arguments.length>0&&void 0!==arguments[0]?arguments[0]:"abr";const nextPlaylist=this.selectPlaylist();nextPlaylist&&this.shouldSwitchToMedia_(nextPlaylist)&&this.switchMedia_(nextPlaylist,reason)}switchMedia_(playlist,cause,delay){const oldMedia=this.media(),oldId=oldMedia&&(oldMedia.id||oldMedia.uri),newId=playlist.id||playlist.uri;oldId&&oldId!==newId&&(this.logger_("switch media ".concat(oldId," -> ").concat(newId," from ").concat(cause)),this.tech_.trigger({type:"usage",name:"vhs-rendition-change-".concat(cause)})),this.mainPlaylistLoader_.media(playlist,delay)}startABRTimer_(){this.stopABRTimer_(),this.abrTimer_=window.setInterval((()=>this.checkABR_()),250)}stopABRTimer_(){this.tech_.scrubbing&&this.tech_.scrubbing()||(window.clearInterval(this.abrTimer_),this.abrTimer_=null)}getAudioTrackPlaylists_(){const main=this.main(),defaultPlaylists=main&&main.playlists||[];if(!main||!main.mediaGroups||!main.mediaGroups.AUDIO)return defaultPlaylists;const AUDIO=main.mediaGroups.AUDIO,groupKeys=Object.keys(AUDIO);let track;if(Object.keys(this.mediaTypes_.AUDIO.groups).length)track=this.mediaTypes_.AUDIO.activeTrack();else{const defaultGroup=AUDIO.main||groupKeys.length&&AUDIO[groupKeys[0]];for(const label in defaultGroup)if(defaultGroup[label].default){track={label:label};break}}if(!track)return defaultPlaylists;const playlists=[];for(const group in AUDIO)if(AUDIO[group][track.label]){const properties=AUDIO[group][track.label];if(properties.playlists&&properties.playlists.length)playlists.push.apply(playlists,properties.playlists);else if(properties.uri)playlists.push(properties);else if(main.playlists.length)for(let i=0;i<main.playlists.length;i++){const playlist=main.playlists[i];playlist.attributes&&playlist.attributes.AUDIO&&playlist.attributes.AUDIO===group&&playlists.push(playlist)}}return playlists.length?playlists:defaultPlaylists}setupMainPlaylistLoaderListeners_(){this.mainPlaylistLoader_.on("loadedmetadata",(()=>{const media=this.mainPlaylistLoader_.media(),requestTimeout=1.5*media.targetDuration*1e3;isLowestEnabledRendition(this.mainPlaylistLoader_.main,this.mainPlaylistLoader_.media())?this.requestOptions_.timeout=0:this.requestOptions_.timeout=requestTimeout,media.endList&&"none"!==this.tech_.preload()&&(this.mainSegmentLoader_.playlist(media,this.requestOptions_),this.mainSegmentLoader_.load()),setupMediaGroups({sourceType:this.sourceType_,segmentLoaders:{AUDIO:this.audioSegmentLoader_,SUBTITLES:this.subtitleSegmentLoader_,main:this.mainSegmentLoader_},tech:this.tech_,requestOptions:this.requestOptions_,mainPlaylistLoader:this.mainPlaylistLoader_,vhs:this.vhs_,main:this.main(),mediaTypes:this.mediaTypes_,excludePlaylist:this.excludePlaylist.bind(this)}),this.triggerPresenceUsage_(this.main(),media),this.setupFirstPlay(),!this.mediaTypes_.AUDIO.activePlaylistLoader||this.mediaTypes_.AUDIO.activePlaylistLoader.media()?this.trigger("selectedinitialmedia"):this.mediaTypes_.AUDIO.activePlaylistLoader.one("loadedmetadata",(()=>{this.trigger("selectedinitialmedia")}))})),this.mainPlaylistLoader_.on("loadedplaylist",(()=>{this.loadOnPlay_&&this.tech_.off("play",this.loadOnPlay_);let updatedPlaylist=this.mainPlaylistLoader_.media();if(!updatedPlaylist){let selectedMedia;if(this.excludeUnsupportedVariants_(),this.enableLowInitialPlaylist&&(selectedMedia=this.selectInitialPlaylist()),selectedMedia||(selectedMedia=this.selectPlaylist()),!selectedMedia||!this.shouldSwitchToMedia_(selectedMedia))return;this.initialMedia_=selectedMedia,this.switchMedia_(this.initialMedia_,"initial");if(!("vhs-json"===this.sourceType_&&this.initialMedia_.segments))return;updatedPlaylist=this.initialMedia_}this.handleUpdatedMediaPlaylist(updatedPlaylist)})),this.mainPlaylistLoader_.on("error",(()=>{const error=this.mainPlaylistLoader_.error;this.excludePlaylist({playlistToExclude:error.playlist,error:error})})),this.mainPlaylistLoader_.on("mediachanging",(()=>{this.mainSegmentLoader_.abort(),this.mainSegmentLoader_.pause()})),this.mainPlaylistLoader_.on("mediachange",(()=>{const media=this.mainPlaylistLoader_.media(),requestTimeout=1.5*media.targetDuration*1e3;isLowestEnabledRendition(this.mainPlaylistLoader_.main,this.mainPlaylistLoader_.media())?this.requestOptions_.timeout=0:this.requestOptions_.timeout=requestTimeout,this.mainPlaylistLoader_.load(),this.mainSegmentLoader_.playlist(media,this.requestOptions_),this.mainSegmentLoader_.load(),this.tech_.trigger({type:"mediachange",bubbles:!0})})),this.mainPlaylistLoader_.on("playlistunchanged",(()=>{const updatedPlaylist=this.mainPlaylistLoader_.media();if("playlist-unchanged"===updatedPlaylist.lastExcludeReason_)return;this.stuckAtPlaylistEnd_(updatedPlaylist)&&(this.excludePlaylist({error:{message:"Playlist no longer updating.",reason:"playlist-unchanged"}}),this.tech_.trigger("playliststuck"))})),this.mainPlaylistLoader_.on("renditiondisabled",(()=>{this.tech_.trigger({type:"usage",name:"vhs-rendition-disabled"})})),this.mainPlaylistLoader_.on("renditionenabled",(()=>{this.tech_.trigger({type:"usage",name:"vhs-rendition-enabled"})}))}handleUpdatedMediaPlaylist(updatedPlaylist){this.useCueTags_&&this.updateAdCues_(updatedPlaylist),this.mainSegmentLoader_.playlist(updatedPlaylist,this.requestOptions_),this.updateDuration(!updatedPlaylist.endList),this.tech_.paused()||(this.mainSegmentLoader_.load(),this.audioSegmentLoader_&&this.audioSegmentLoader_.load())}triggerPresenceUsage_(main,media){const mediaGroups=main.mediaGroups||{};let defaultDemuxed=!0;const audioGroupKeys=Object.keys(mediaGroups.AUDIO);for(const mediaGroup in mediaGroups.AUDIO)for(const label in mediaGroups.AUDIO[mediaGroup]){mediaGroups.AUDIO[mediaGroup][label].uri||(defaultDemuxed=!1)}defaultDemuxed&&this.tech_.trigger({type:"usage",name:"vhs-demuxed"}),Object.keys(mediaGroups.SUBTITLES).length&&this.tech_.trigger({type:"usage",name:"vhs-webvtt"}),Vhs$1.Playlist.isAes(media)&&this.tech_.trigger({type:"usage",name:"vhs-aes"}),audioGroupKeys.length&&Object.keys(mediaGroups.AUDIO[audioGroupKeys[0]]).length>1&&this.tech_.trigger({type:"usage",name:"vhs-alternate-audio"}),this.useCueTags_&&this.tech_.trigger({type:"usage",name:"vhs-playlist-cue-tags"})}shouldSwitchToMedia_(nextPlaylist){const currentPlaylist=this.mainPlaylistLoader_.media()||this.mainPlaylistLoader_.pendingMedia_,currentTime=this.tech_.currentTime(),bufferLowWaterLine=this.bufferLowWaterLine(),bufferHighWaterLine=this.bufferHighWaterLine();return function(_ref77){let{currentPlaylist:currentPlaylist,buffered:buffered,currentTime:currentTime,nextPlaylist:nextPlaylist,bufferLowWaterLine:bufferLowWaterLine,bufferHighWaterLine:bufferHighWaterLine,duration:duration,bufferBasedABR:bufferBasedABR,log:log}=_ref77;if(!nextPlaylist)return videojs.log.warn("We received no playlist to switch to. Please check your stream."),!1;const sharedLogLine="allowing switch ".concat(currentPlaylist&&currentPlaylist.id||"null"," -> ").concat(nextPlaylist.id);if(!currentPlaylist)return log("".concat(sharedLogLine," as current playlist is not set")),!0;if(nextPlaylist.id===currentPlaylist.id)return!1;const isBuffered=Boolean(findRange(buffered,currentTime).length);if(!currentPlaylist.endList)return isBuffered||"number"!=typeof currentPlaylist.partTargetDuration?(log("".concat(sharedLogLine," as current playlist is live")),!0):(log("not ".concat(sharedLogLine," as current playlist is live llhls, but currentTime isn't in buffered.")),!1);const forwardBuffer=timeAheadOf(buffered,currentTime),maxBufferLowWaterLine=bufferBasedABR?Config.EXPERIMENTAL_MAX_BUFFER_LOW_WATER_LINE:Config.MAX_BUFFER_LOW_WATER_LINE;if(duration<maxBufferLowWaterLine)return log("".concat(sharedLogLine," as duration < max low water line (").concat(duration," < ").concat(maxBufferLowWaterLine,")")),!0;const nextBandwidth=nextPlaylist.attributes.BANDWIDTH,currBandwidth=currentPlaylist.attributes.BANDWIDTH;if(nextBandwidth<currBandwidth&&(!bufferBasedABR||forwardBuffer<bufferHighWaterLine)){let logLine="".concat(sharedLogLine," as next bandwidth < current bandwidth (").concat(nextBandwidth," < ").concat(currBandwidth,")");return bufferBasedABR&&(logLine+=" and forwardBuffer < bufferHighWaterLine (".concat(forwardBuffer," < ").concat(bufferHighWaterLine,")")),log(logLine),!0}if((!bufferBasedABR||nextBandwidth>currBandwidth)&&forwardBuffer>=bufferLowWaterLine){let logLine="".concat(sharedLogLine," as forwardBuffer >= bufferLowWaterLine (").concat(forwardBuffer," >= ").concat(bufferLowWaterLine,")");return bufferBasedABR&&(logLine+=" and next bandwidth > current bandwidth (".concat(nextBandwidth," > ").concat(currBandwidth,")")),log(logLine),!0}return log("not ".concat(sharedLogLine," as no switching criteria met")),!1}({buffered:this.tech_.buffered(),currentTime:currentTime,currentPlaylist:currentPlaylist,nextPlaylist:nextPlaylist,bufferLowWaterLine:bufferLowWaterLine,bufferHighWaterLine:bufferHighWaterLine,duration:this.duration(),bufferBasedABR:this.bufferBasedABR,log:this.logger_})}setupSegmentLoaderListeners_(){this.mainSegmentLoader_.on("bandwidthupdate",(()=>{this.checkABR_("bandwidthupdate"),this.tech_.trigger("bandwidthupdate")})),this.mainSegmentLoader_.on("timeout",(()=>{this.bufferBasedABR&&this.mainSegmentLoader_.load()})),this.bufferBasedABR||this.mainSegmentLoader_.on("progress",(()=>{this.trigger("progress")})),this.mainSegmentLoader_.on("error",(()=>{const error=this.mainSegmentLoader_.error();this.excludePlaylist({playlistToExclude:error.playlist,error:error})})),this.mainSegmentLoader_.on("appenderror",(()=>{this.error=this.mainSegmentLoader_.error_,this.trigger("error")})),this.mainSegmentLoader_.on("syncinfoupdate",(()=>{this.onSyncInfoUpdate_()})),this.mainSegmentLoader_.on("timestampoffset",(()=>{this.tech_.trigger({type:"usage",name:"vhs-timestamp-offset"})})),this.audioSegmentLoader_.on("syncinfoupdate",(()=>{this.onSyncInfoUpdate_()})),this.audioSegmentLoader_.on("appenderror",(()=>{this.error=this.audioSegmentLoader_.error_,this.trigger("error")})),this.mainSegmentLoader_.on("ended",(()=>{this.logger_("main segment loader ended"),this.onEndOfStream()})),this.mainSegmentLoader_.on("earlyabort",(event=>{this.bufferBasedABR||(this.delegateLoaders_("all",["abort"]),this.excludePlaylist({error:{message:"Aborted early because there isn't enough bandwidth to complete the request without rebuffering."},playlistExclusionDuration:120}))}));const updateCodecs=()=>{if(!this.sourceUpdater_.hasCreatedSourceBuffers())return this.tryToCreateSourceBuffers_();const codecs=this.getCodecsOrExclude_();codecs&&this.sourceUpdater_.addOrChangeSourceBuffers(codecs)};this.mainSegmentLoader_.on("trackinfo",updateCodecs),this.audioSegmentLoader_.on("trackinfo",updateCodecs),this.mainSegmentLoader_.on("fmp4",(()=>{this.triggeredFmp4Usage||(this.tech_.trigger({type:"usage",name:"vhs-fmp4"}),this.triggeredFmp4Usage=!0)})),this.audioSegmentLoader_.on("fmp4",(()=>{this.triggeredFmp4Usage||(this.tech_.trigger({type:"usage",name:"vhs-fmp4"}),this.triggeredFmp4Usage=!0)})),this.audioSegmentLoader_.on("ended",(()=>{this.logger_("audioSegmentLoader ended"),this.onEndOfStream()}))}mediaSecondsLoaded_(){return Math.max(this.audioSegmentLoader_.mediaSecondsLoaded+this.mainSegmentLoader_.mediaSecondsLoaded)}load(){this.mainSegmentLoader_.load(),this.mediaTypes_.AUDIO.activePlaylistLoader&&this.audioSegmentLoader_.load(),this.mediaTypes_.SUBTITLES.activePlaylistLoader&&this.subtitleSegmentLoader_.load()}fastQualityChange_(){let media=arguments.length>0&&void 0!==arguments[0]?arguments[0]:this.selectPlaylist();media!==this.mainPlaylistLoader_.media()?(this.switchMedia_(media,"fast-quality"),this.mainSegmentLoader_.resetEverything((()=>{videojs.browser.IE_VERSION||videojs.browser.IS_EDGE?this.tech_.setCurrentTime(this.tech_.currentTime()+.04):this.tech_.setCurrentTime(this.tech_.currentTime())}))):this.logger_("skipping fastQualityChange because new media is same as old")}play(){if(this.setupFirstPlay())return;this.tech_.ended()&&this.tech_.setCurrentTime(0),this.hasPlayed_&&this.load();const seekable=this.tech_.seekable();return this.tech_.duration()===1/0&&this.tech_.currentTime()<seekable.start(0)?this.tech_.setCurrentTime(seekable.end(seekable.length-1)):void 0}setupFirstPlay(){const media=this.mainPlaylistLoader_.media();if(!media||this.tech_.paused()||this.hasPlayed_)return!1;if(!media.endList){const seekable=this.seekable();if(!seekable.length)return!1;if(videojs.browser.IE_VERSION&&0===this.tech_.readyState())return this.tech_.one("loadedmetadata",(()=>{this.trigger("firstplay"),this.tech_.setCurrentTime(seekable.end(0)),this.hasPlayed_=!0})),!1;this.trigger("firstplay"),this.tech_.setCurrentTime(seekable.end(0))}return this.hasPlayed_=!0,this.load(),!0}handleSourceOpen_(){if(this.tryToCreateSourceBuffers_(),this.tech_.autoplay()){const playPromise=this.tech_.play();void 0!==playPromise&&"function"==typeof playPromise.then&&playPromise.then(null,(e=>{}))}this.trigger("sourceopen")}handleSourceEnded_(){if(!this.inbandTextTracks_.metadataTrack_)return;const cues=this.inbandTextTracks_.metadataTrack_.cues;if(!cues||!cues.length)return;const duration=this.duration();cues[cues.length-1].endTime=isNaN(duration)||Math.abs(duration)===1/0?Number.MAX_VALUE:duration}handleDurationChange_(){this.tech_.trigger("durationchange")}onEndOfStream(){let isEndOfStream=this.mainSegmentLoader_.ended_;if(this.mediaTypes_.AUDIO.activePlaylistLoader){const mainMediaInfo=this.mainSegmentLoader_.getCurrentMediaInfo_();isEndOfStream=!mainMediaInfo||mainMediaInfo.hasVideo?isEndOfStream&&this.audioSegmentLoader_.ended_:this.audioSegmentLoader_.ended_}isEndOfStream&&(this.stopABRTimer_(),this.sourceUpdater_.endOfStream())}stuckAtPlaylistEnd_(playlist){if(!this.seekable().length)return!1;const expired=this.syncController_.getExpiredTime(playlist,this.duration());if(null===expired)return!1;const absolutePlaylistEnd=Vhs$1.Playlist.playlistEnd(playlist,expired),currentTime=this.tech_.currentTime(),buffered=this.tech_.buffered();if(!buffered.length)return absolutePlaylistEnd-currentTime<=.1;const bufferedEnd=buffered.end(buffered.length-1);return bufferedEnd-currentTime<=.1&&absolutePlaylistEnd-bufferedEnd<=.1}excludePlaylist(_ref78){let{playlistToExclude:playlistToExclude=this.mainPlaylistLoader_.media(),error:error={},playlistExclusionDuration:playlistExclusionDuration}=_ref78;if(playlistToExclude=playlistToExclude||this.mainPlaylistLoader_.media(),playlistExclusionDuration=playlistExclusionDuration||error.playlistExclusionDuration||this.playlistExclusionDuration,!playlistToExclude)return this.error=error,void("open"!==this.mediaSource.readyState?this.trigger("error"):this.sourceUpdater_.endOfStream("network"));playlistToExclude.playlistErrors_++;const playlists=this.mainPlaylistLoader_.main.playlists,enabledPlaylists=playlists.filter(isEnabled),isFinalRendition=1===enabledPlaylists.length&&enabledPlaylists[0]===playlistToExclude;if(1===playlists.length&&playlistExclusionDuration!==1/0)return videojs.log.warn("Problem encountered with playlist ".concat(playlistToExclude.id,". ")+"Trying again since it is the only playlist."),this.tech_.trigger("retryplaylist"),this.mainPlaylistLoader_.load(isFinalRendition);if(isFinalRendition){let reincluded=!1;playlists.forEach((playlist=>{if(playlist===playlistToExclude)return;const excludeUntil=playlist.excludeUntil;void 0!==excludeUntil&&excludeUntil!==1/0&&(reincluded=!0,delete playlist.excludeUntil)})),reincluded&&(videojs.log.warn("Removing other playlists from the exclusion list because the last rendition is about to be excluded."),this.tech_.trigger("retryplaylist"))}let excludeUntil;excludeUntil=playlistToExclude.playlistErrors_>this.maxPlaylistRetries?1/0:Date.now()+1e3*playlistExclusionDuration,playlistToExclude.excludeUntil=excludeUntil,error.reason&&(playlistToExclude.lastExcludeReason_=error.reason),this.tech_.trigger("excludeplaylist"),this.tech_.trigger({type:"usage",name:"vhs-rendition-excluded"});const nextPlaylist=this.selectPlaylist();if(!nextPlaylist)return this.error="Playback cannot continue. No available working or supported playlists.",void this.trigger("error");const logFn=error.internal?this.logger_:videojs.log.warn,errorMessage=error.message?" "+error.message:"";logFn("".concat(error.internal?"Internal problem":"Problem"," encountered with playlist ").concat(playlistToExclude.id,".")+"".concat(errorMessage," Switching to playlist ").concat(nextPlaylist.id,".")),nextPlaylist.attributes.AUDIO!==playlistToExclude.attributes.AUDIO&&this.delegateLoaders_("audio",["abort","pause"]),nextPlaylist.attributes.SUBTITLES!==playlistToExclude.attributes.SUBTITLES&&this.delegateLoaders_("subtitle",["abort","pause"]),this.delegateLoaders_("main",["abort","pause"]);const delayDuration=nextPlaylist.targetDuration/2*1e3||5e3,shouldDelay="number"==typeof nextPlaylist.lastRequest&&Date.now()-nextPlaylist.lastRequest<=delayDuration;return this.switchMedia_(nextPlaylist,"exclude",isFinalRendition||shouldDelay)}pauseLoading(){this.delegateLoaders_("all",["abort","pause"]),this.stopABRTimer_()}delegateLoaders_(filter,fnNames){const loaders=[],dontFilterPlaylist="all"===filter;(dontFilterPlaylist||"main"===filter)&&loaders.push(this.mainPlaylistLoader_);const mediaTypes=[];(dontFilterPlaylist||"audio"===filter)&&mediaTypes.push("AUDIO"),(dontFilterPlaylist||"subtitle"===filter)&&(mediaTypes.push("CLOSED-CAPTIONS"),mediaTypes.push("SUBTITLES")),mediaTypes.forEach((mediaType=>{const loader=this.mediaTypes_[mediaType]&&this.mediaTypes_[mediaType].activePlaylistLoader;loader&&loaders.push(loader)})),["main","audio","subtitle"].forEach((name=>{const loader=this["".concat(name,"SegmentLoader_")];!loader||filter!==name&&"all"!==filter||loaders.push(loader)})),loaders.forEach((loader=>fnNames.forEach((fnName=>{"function"==typeof loader[fnName]&&loader[fnName]()}))))}setCurrentTime(currentTime){const buffered=findRange(this.tech_.buffered(),currentTime);return this.mainPlaylistLoader_&&this.mainPlaylistLoader_.media()&&this.mainPlaylistLoader_.media().segments?buffered&&buffered.length?currentTime:(this.mainSegmentLoader_.resetEverything(),this.mainSegmentLoader_.abort(),this.mediaTypes_.AUDIO.activePlaylistLoader&&(this.audioSegmentLoader_.resetEverything(),this.audioSegmentLoader_.abort()),this.mediaTypes_.SUBTITLES.activePlaylistLoader&&(this.subtitleSegmentLoader_.resetEverything(),this.subtitleSegmentLoader_.abort()),void this.load()):0}duration(){if(!this.mainPlaylistLoader_)return 0;const media=this.mainPlaylistLoader_.media();return media?media.endList?this.mediaSource?this.mediaSource.duration:Vhs$1.Playlist.duration(media):1/0:0}seekable(){return this.seekable_}onSyncInfoUpdate_(){let audioSeekable;if(!this.mainPlaylistLoader_)return;let media=this.mainPlaylistLoader_.media();if(!media)return;let expired=this.syncController_.getExpiredTime(media,this.duration());if(null===expired)return;const main=this.mainPlaylistLoader_.main,mainSeekable=Vhs$1.Playlist.seekable(media,expired,Vhs$1.Playlist.liveEdgeDelay(main,media));if(0===mainSeekable.length)return;if(this.mediaTypes_.AUDIO.activePlaylistLoader){if(media=this.mediaTypes_.AUDIO.activePlaylistLoader.media(),expired=this.syncController_.getExpiredTime(media,this.duration()),null===expired)return;if(audioSeekable=Vhs$1.Playlist.seekable(media,expired,Vhs$1.Playlist.liveEdgeDelay(main,media)),0===audioSeekable.length)return}let oldEnd,oldStart;this.seekable_&&this.seekable_.length&&(oldEnd=this.seekable_.end(0),oldStart=this.seekable_.start(0)),audioSeekable?audioSeekable.start(0)>mainSeekable.end(0)||mainSeekable.start(0)>audioSeekable.end(0)?this.seekable_=mainSeekable:this.seekable_=createTimeRanges([[audioSeekable.start(0)>mainSeekable.start(0)?audioSeekable.start(0):mainSeekable.start(0),audioSeekable.end(0)<mainSeekable.end(0)?audioSeekable.end(0):mainSeekable.end(0)]]):this.seekable_=mainSeekable,this.seekable_&&this.seekable_.length&&this.seekable_.end(0)===oldEnd&&this.seekable_.start(0)===oldStart||(this.logger_("seekable updated [".concat(printableRange(this.seekable_),"]")),this.tech_.trigger("seekablechanged"))}updateDuration(isLive){if(this.updateDuration_&&(this.mediaSource.removeEventListener("sourceopen",this.updateDuration_),this.updateDuration_=null),"open"!==this.mediaSource.readyState)return this.updateDuration_=this.updateDuration.bind(this,isLive),void this.mediaSource.addEventListener("sourceopen",this.updateDuration_);if(isLive){const seekable=this.seekable();if(!seekable.length)return;return void((isNaN(this.mediaSource.duration)||this.mediaSource.duration<seekable.end(seekable.length-1))&&this.sourceUpdater_.setDuration(seekable.end(seekable.length-1)))}const buffered=this.tech_.buffered();let duration=Vhs$1.Playlist.duration(this.mainPlaylistLoader_.media());buffered.length>0&&(duration=Math.max(duration,buffered.end(buffered.length-1))),this.mediaSource.duration!==duration&&this.sourceUpdater_.setDuration(duration)}dispose(){this.trigger("dispose"),this.decrypter_.terminate(),this.mainPlaylistLoader_.dispose(),this.mainSegmentLoader_.dispose(),this.loadOnPlay_&&this.tech_.off("play",this.loadOnPlay_),["AUDIO","SUBTITLES"].forEach((type=>{const groups=this.mediaTypes_[type].groups;for(const id in groups)groups[id].forEach((group=>{group.playlistLoader&&group.playlistLoader.dispose()}))})),this.audioSegmentLoader_.dispose(),this.subtitleSegmentLoader_.dispose(),this.sourceUpdater_.dispose(),this.timelineChangeController_.dispose(),this.stopABRTimer_(),this.updateDuration_&&this.mediaSource.removeEventListener("sourceopen",this.updateDuration_),this.mediaSource.removeEventListener("durationchange",this.handleDurationChange_),this.mediaSource.removeEventListener("sourceopen",this.handleSourceOpen_),this.mediaSource.removeEventListener("sourceended",this.handleSourceEnded_),this.off()}main(){return this.mainPlaylistLoader_.main}media(){return this.mainPlaylistLoader_.media()||this.initialMedia_}areMediaTypesKnown_(){const usingAudioLoader=!!this.mediaTypes_.AUDIO.activePlaylistLoader,hasMainMediaInfo=!!this.mainSegmentLoader_.getCurrentMediaInfo_(),hasAudioMediaInfo=!usingAudioLoader||!!this.audioSegmentLoader_.getCurrentMediaInfo_();return!(!hasMainMediaInfo||!hasAudioMediaInfo)}getCodecsOrExclude_(){const media={main:this.mainSegmentLoader_.getCurrentMediaInfo_()||{},audio:this.audioSegmentLoader_.getCurrentMediaInfo_()||{}},playlist=this.mainSegmentLoader_.getPendingSegmentPlaylist()||this.media();media.video=media.main;const playlistCodecs=codecsForPlaylist(this.main(),playlist),codecs={},usingAudioLoader=!!this.mediaTypes_.AUDIO.activePlaylistLoader;if(media.main.hasVideo&&(codecs.video=playlistCodecs.video||media.main.videoCodec||"avc1.4d400d"),media.main.isMuxed&&(codecs.video+=",".concat(playlistCodecs.audio||media.main.audioCodec||"mp4a.40.2")),(media.main.hasAudio&&!media.main.isMuxed||media.audio.hasAudio||usingAudioLoader)&&(codecs.audio=playlistCodecs.audio||media.main.audioCodec||media.audio.audioCodec||"mp4a.40.2",media.audio.isFmp4=media.main.hasAudio&&!media.main.isMuxed?media.main.isFmp4:media.audio.isFmp4),!codecs.audio&&!codecs.video)return void this.excludePlaylist({playlistToExclude:playlist,error:{message:"Could not determine codecs for playlist."},playlistExclusionDuration:1/0});const unsupportedCodecs={};let unsupportedAudio;if(["video","audio"].forEach((function(type){if(codecs.hasOwnProperty(type)&&(isFmp4=media[type].isFmp4,codec=codecs[type],!(isFmp4?browserSupportsCodec(codec):muxerSupportsCodec(codec)))){const supporter=media[type].isFmp4?"browser":"muxer";unsupportedCodecs[supporter]=unsupportedCodecs[supporter]||[],unsupportedCodecs[supporter].push(codecs[type]),"audio"===type&&(unsupportedAudio=supporter)}var isFmp4,codec})),usingAudioLoader&&unsupportedAudio&&playlist.attributes.AUDIO){const audioGroup=playlist.attributes.AUDIO;this.main().playlists.forEach((variant=>{(variant.attributes&&variant.attributes.AUDIO)===audioGroup&&variant!==playlist&&(variant.excludeUntil=1/0)})),this.logger_("excluding audio group ".concat(audioGroup," as ").concat(unsupportedAudio,' does not support codec(s): "').concat(codecs.audio,'"'))}if(!Object.keys(unsupportedCodecs).length){if(this.sourceUpdater_.hasCreatedSourceBuffers()&&!this.sourceUpdater_.canChangeType()){const switchMessages=[];if(["video","audio"].forEach((type=>{const newCodec=(parseCodecs(this.sourceUpdater_.codecs[type]||"")[0]||{}).type,oldCodec=(parseCodecs(codecs[type]||"")[0]||{}).type;newCodec&&oldCodec&&newCodec.toLowerCase()!==oldCodec.toLowerCase()&&switchMessages.push('"'.concat(this.sourceUpdater_.codecs[type],'" -> "').concat(codecs[type],'"'))})),switchMessages.length)return void this.excludePlaylist({playlistToExclude:playlist,error:{message:"Codec switching not supported: ".concat(switchMessages.join(", "),"."),internal:!0},playlistExclusionDuration:1/0})}return codecs}{const message=Object.keys(unsupportedCodecs).reduce(((acc,supporter)=>(acc&&(acc+=", "),acc+="".concat(supporter,' does not support codec(s): "').concat(unsupportedCodecs[supporter].join(","),'"'))),"")+".";this.excludePlaylist({playlistToExclude:playlist,error:{internal:!0,message:message},playlistExclusionDuration:1/0})}}tryToCreateSourceBuffers_(){if("open"!==this.mediaSource.readyState||this.sourceUpdater_.hasCreatedSourceBuffers())return;if(!this.areMediaTypesKnown_())return;const codecs=this.getCodecsOrExclude_();if(!codecs)return;this.sourceUpdater_.createSourceBuffers(codecs);const codecString=[codecs.video,codecs.audio].filter(Boolean).join(",");this.excludeIncompatibleVariants_(codecString)}excludeUnsupportedVariants_(){const playlists=this.main().playlists,ids=[];Object.keys(playlists).forEach((key=>{const variant=playlists[key];if(-1!==ids.indexOf(variant.id))return;ids.push(variant.id);const codecs=codecsForPlaylist(this.main,variant),unsupported=[];!codecs.audio||muxerSupportsCodec(codecs.audio)||browserSupportsCodec(codecs.audio)||unsupported.push("audio codec ".concat(codecs.audio)),!codecs.video||muxerSupportsCodec(codecs.video)||browserSupportsCodec(codecs.video)||unsupported.push("video codec ".concat(codecs.video)),codecs.text&&"stpp.ttml.im1t"===codecs.text&&unsupported.push("text codec ".concat(codecs.text)),unsupported.length&&(variant.excludeUntil=1/0,this.logger_("excluding ".concat(variant.id," for unsupported: ").concat(unsupported.join(", "))))}))}excludeIncompatibleVariants_(codecString){const ids=[],playlists=this.main().playlists,codecs=unwrapCodecList(parseCodecs(codecString)),codecCount_=codecCount(codecs),videoDetails=codecs.video&&parseCodecs(codecs.video)[0]||null,audioDetails=codecs.audio&&parseCodecs(codecs.audio)[0]||null;Object.keys(playlists).forEach((key=>{const variant=playlists[key];if(-1!==ids.indexOf(variant.id)||variant.excludeUntil===1/0)return;ids.push(variant.id);const exclusionReasons=[],variantCodecs=codecsForPlaylist(this.mainPlaylistLoader_.main,variant),variantCodecCount=codecCount(variantCodecs);if(variantCodecs.audio||variantCodecs.video){if(variantCodecCount!==codecCount_&&exclusionReasons.push('codec count "'.concat(variantCodecCount,'" !== "').concat(codecCount_,'"')),!this.sourceUpdater_.canChangeType()){const variantVideoDetails=variantCodecs.video&&parseCodecs(variantCodecs.video)[0]||null,variantAudioDetails=variantCodecs.audio&&parseCodecs(variantCodecs.audio)[0]||null;variantVideoDetails&&videoDetails&&variantVideoDetails.type.toLowerCase()!==videoDetails.type.toLowerCase()&&exclusionReasons.push('video codec "'.concat(variantVideoDetails.type,'" !== "').concat(videoDetails.type,'"')),variantAudioDetails&&audioDetails&&variantAudioDetails.type.toLowerCase()!==audioDetails.type.toLowerCase()&&exclusionReasons.push('audio codec "'.concat(variantAudioDetails.type,'" !== "').concat(audioDetails.type,'"'))}exclusionReasons.length&&(variant.excludeUntil=1/0,this.logger_("excluding ".concat(variant.id,": ").concat(exclusionReasons.join(" && "))))}}))}updateAdCues_(media){let offset=0;const seekable=this.seekable();seekable.length&&(offset=seekable.start(0)),function(media,track){let offset=arguments.length>2&&void 0!==arguments[2]?arguments[2]:0;if(!media.segments)return;let cue,mediaTime=offset;for(let i=0;i<media.segments.length;i++){const segment=media.segments[i];if(cue||(cue=findAdCue(track,mediaTime+segment.duration/2)),cue){if("cueIn"in segment){cue.endTime=mediaTime,cue.adEndTime=mediaTime,mediaTime+=segment.duration,cue=null;continue}if(mediaTime<cue.endTime){mediaTime+=segment.duration;continue}cue.endTime+=segment.duration}else if("cueOut"in segment&&(cue=new window.VTTCue(mediaTime,mediaTime+segment.duration,segment.cueOut),cue.adStartTime=mediaTime,cue.adEndTime=mediaTime+parseFloat(segment.cueOut),track.addCue(cue)),"cueOutCont"in segment){const[adOffset,adTotal]=segment.cueOutCont.split("/").map(parseFloat);cue=new window.VTTCue(mediaTime,mediaTime+segment.duration,""),cue.adStartTime=mediaTime-adOffset,cue.adEndTime=cue.adStartTime+adTotal,track.addCue(cue)}mediaTime+=segment.duration}}(media,this.cueTagsTrack_,offset)}goalBufferLength(){const currentTime=this.tech_.currentTime(),initial=Config.GOAL_BUFFER_LENGTH,rate=Config.GOAL_BUFFER_LENGTH_RATE,max=Math.max(initial,Config.MAX_GOAL_BUFFER_LENGTH);return Math.min(initial+currentTime*rate,max)}bufferLowWaterLine(){const currentTime=this.tech_.currentTime(),initial=Config.BUFFER_LOW_WATER_LINE,rate=Config.BUFFER_LOW_WATER_LINE_RATE,max=Math.max(initial,Config.MAX_BUFFER_LOW_WATER_LINE),newMax=Math.max(initial,Config.EXPERIMENTAL_MAX_BUFFER_LOW_WATER_LINE);return Math.min(initial+currentTime*rate,this.bufferBasedABR?newMax:max)}bufferHighWaterLine(){return Config.BUFFER_HIGH_WATER_LINE}}class Representation{constructor(vhsHandler,playlist,id){const{playlistController_:pc}=vhsHandler,qualityChangeFunction=pc.fastQualityChange_.bind(pc);if(playlist.attributes){const resolution=playlist.attributes.RESOLUTION;this.width=resolution&&resolution.width,this.height=resolution&&resolution.height,this.bandwidth=playlist.attributes.BANDWIDTH,this.frameRate=playlist.attributes["FRAME-RATE"]}var loader,playlistID,changePlaylistFn;this.codecs=codecsForPlaylist(pc.main(),playlist),this.playlist=playlist,this.id=id,this.enabled=(loader=vhsHandler.playlists,playlistID=playlist.id,changePlaylistFn=qualityChangeFunction,enable=>{const playlist=loader.main.playlists[playlistID],incompatible=isIncompatible(playlist),currentlyEnabled=isEnabled(playlist);return void 0===enable?currentlyEnabled:(enable?delete playlist.disabled:playlist.disabled=!0,enable===currentlyEnabled||incompatible||(changePlaylistFn(),enable?loader.trigger("renditionenabled"):loader.trigger("renditiondisabled")),enable)})}}const timerCancelEvents=["seeking","seeked","pause","playing","error"];class PlaybackWatcher{constructor(options){this.playlistController_=options.playlistController,this.tech_=options.tech,this.seekable=options.seekable,this.allowSeeksWithinUnsafeLiveWindow=options.allowSeeksWithinUnsafeLiveWindow,this.liveRangeSafeTimeDelta=options.liveRangeSafeTimeDelta,this.media=options.media,this.consecutiveUpdates=0,this.lastRecordedTime=null,this.checkCurrentTimeTimeout_=null,this.logger_=logger("PlaybackWatcher"),this.logger_("initialize");const playHandler=()=>this.monitorCurrentTime_(),canPlayHandler=()=>this.monitorCurrentTime_(),waitingHandler=()=>this.techWaiting_(),cancelTimerHandler=()=>this.resetTimeUpdate_(),pc=this.playlistController_,loaderTypes=["main","subtitle","audio"],loaderChecks={};loaderTypes.forEach((type=>{loaderChecks[type]={reset:()=>this.resetSegmentDownloads_(type),updateend:()=>this.checkSegmentDownloads_(type)},pc["".concat(type,"SegmentLoader_")].on("appendsdone",loaderChecks[type].updateend),pc["".concat(type,"SegmentLoader_")].on("playlistupdate",loaderChecks[type].reset),this.tech_.on(["seeked","seeking"],loaderChecks[type].reset)}));const setSeekingHandlers=fn=>{["main","audio"].forEach((type=>{pc["".concat(type,"SegmentLoader_")][fn]("appended",this.seekingAppendCheck_)}))};this.seekingAppendCheck_=()=>{this.fixesBadSeeks_()&&(this.consecutiveUpdates=0,this.lastRecordedTime=this.tech_.currentTime(),setSeekingHandlers("off"))},this.clearSeekingAppendCheck_=()=>setSeekingHandlers("off"),this.watchForBadSeeking_=()=>{this.clearSeekingAppendCheck_(),setSeekingHandlers("on")},this.tech_.on("seeked",this.clearSeekingAppendCheck_),this.tech_.on("seeking",this.watchForBadSeeking_),this.tech_.on("waiting",waitingHandler),this.tech_.on(timerCancelEvents,cancelTimerHandler),this.tech_.on("canplay",canPlayHandler),this.tech_.one("play",playHandler),this.dispose=()=>{this.clearSeekingAppendCheck_(),this.logger_("dispose"),this.tech_.off("waiting",waitingHandler),this.tech_.off(timerCancelEvents,cancelTimerHandler),this.tech_.off("canplay",canPlayHandler),this.tech_.off("play",playHandler),this.tech_.off("seeking",this.watchForBadSeeking_),this.tech_.off("seeked",this.clearSeekingAppendCheck_),loaderTypes.forEach((type=>{pc["".concat(type,"SegmentLoader_")].off("appendsdone",loaderChecks[type].updateend),pc["".concat(type,"SegmentLoader_")].off("playlistupdate",loaderChecks[type].reset),this.tech_.off(["seeked","seeking"],loaderChecks[type].reset)})),this.checkCurrentTimeTimeout_&&window.clearTimeout(this.checkCurrentTimeTimeout_),this.resetTimeUpdate_()}}monitorCurrentTime_(){this.checkCurrentTime_(),this.checkCurrentTimeTimeout_&&window.clearTimeout(this.checkCurrentTimeTimeout_),this.checkCurrentTimeTimeout_=window.setTimeout(this.monitorCurrentTime_.bind(this),250)}resetSegmentDownloads_(type){const loader=this.playlistController_["".concat(type,"SegmentLoader_")];this["".concat(type,"StalledDownloads_")]>0&&this.logger_("resetting possible stalled download count for ".concat(type," loader")),this["".concat(type,"StalledDownloads_")]=0,this["".concat(type,"Buffered_")]=loader.buffered_()}checkSegmentDownloads_(type){const pc=this.playlistController_,loader=pc["".concat(type,"SegmentLoader_")],buffered=loader.buffered_(),isBufferedDifferent=function(a,b){if(a===b)return!1;if(!a&&b||!b&&a)return!0;if(a.length!==b.length)return!0;for(let i=0;i<a.length;i++)if(a.start(i)!==b.start(i)||a.end(i)!==b.end(i))return!0;return!1}(this["".concat(type,"Buffered_")],buffered);this["".concat(type,"Buffered_")]=buffered,isBufferedDifferent?this.resetSegmentDownloads_(type):(this["".concat(type,"StalledDownloads_")]++,this.logger_("found #".concat(this["".concat(type,"StalledDownloads_")]," ").concat(type," appends that did not increase buffer (possible stalled download)"),{playlistId:loader.playlist_&&loader.playlist_.id,buffered:timeRangesToArray(buffered)}),this["".concat(type,"StalledDownloads_")]<10||(this.logger_("".concat(type," loader stalled download exclusion")),this.resetSegmentDownloads_(type),this.tech_.trigger({type:"usage",name:"vhs-".concat(type,"-download-exclusion")}),"subtitle"!==type&&pc.excludePlaylist({error:{message:"Excessive ".concat(type," segment downloading detected.")},playlistExclusionDuration:1/0})))}checkCurrentTime_(){if(this.tech_.paused()||this.tech_.seeking())return;const currentTime=this.tech_.currentTime(),buffered=this.tech_.buffered();if(this.lastRecordedTime===currentTime&&(!buffered.length||currentTime+.1>=buffered.end(buffered.length-1)))return this.techWaiting_();this.consecutiveUpdates>=5&&currentTime===this.lastRecordedTime?(this.consecutiveUpdates++,this.waiting_()):currentTime===this.lastRecordedTime?this.consecutiveUpdates++:(this.consecutiveUpdates=0,this.lastRecordedTime=currentTime)}resetTimeUpdate_(){this.consecutiveUpdates=0}fixesBadSeeks_(){if(!this.tech_.seeking())return!1;const seekable=this.seekable(),currentTime=this.tech_.currentTime();let seekTo;if(this.afterSeekableWindow_(seekable,currentTime,this.media(),this.allowSeeksWithinUnsafeLiveWindow)){seekTo=seekable.end(seekable.length-1)}if(this.beforeSeekableWindow_(seekable,currentTime)){const seekableStart=seekable.start(0);seekTo=seekableStart+(seekableStart===seekable.end(0)?0:.1)}if(void 0!==seekTo)return this.logger_("Trying to seek outside of seekable at time ".concat(currentTime," with ")+"seekable range ".concat(printableRange(seekable),". Seeking to ")+"".concat(seekTo,".")),this.tech_.setCurrentTime(seekTo),!0;const sourceUpdater=this.playlistController_.sourceUpdater_,buffered=this.tech_.buffered(),audioBuffered=sourceUpdater.audioBuffer?sourceUpdater.audioBuffered():null,videoBuffered=sourceUpdater.videoBuffer?sourceUpdater.videoBuffered():null,media=this.media(),minAppendedDuration=media.partTargetDuration?media.partTargetDuration:2*(media.targetDuration-.03333333333333333),bufferedToCheck=[audioBuffered,videoBuffered];for(let i=0;i<bufferedToCheck.length;i++){if(!bufferedToCheck[i])continue;if(timeAheadOf(bufferedToCheck[i],currentTime)<minAppendedDuration)return!1}const nextRange=findNextRange(buffered,currentTime);return 0!==nextRange.length&&(seekTo=nextRange.start(0)+.1,this.logger_("Buffered region starts (".concat(nextRange.start(0),") ")+" just beyond seek point (".concat(currentTime,"). Seeking to ").concat(seekTo,".")),this.tech_.setCurrentTime(seekTo),!0)}waiting_(){if(this.techWaiting_())return;const currentTime=this.tech_.currentTime(),buffered=this.tech_.buffered(),currentRange=findRange(buffered,currentTime);return currentRange.length&&currentTime+3<=currentRange.end(0)?(this.resetTimeUpdate_(),this.tech_.setCurrentTime(currentTime),this.logger_("Stopped at ".concat(currentTime," while inside a buffered region ")+"[".concat(currentRange.start(0)," -> ").concat(currentRange.end(0),"]. Attempting to resume ")+"playback by seeking to the current time."),void this.tech_.trigger({type:"usage",name:"vhs-unknown-waiting"})):void 0}techWaiting_(){const seekable=this.seekable(),currentTime=this.tech_.currentTime();if(this.tech_.seeking())return!0;if(this.beforeSeekableWindow_(seekable,currentTime)){const livePoint=seekable.end(seekable.length-1);return this.logger_("Fell out of live window at time ".concat(currentTime,". Seeking to ")+"live point (seekable end) ".concat(livePoint)),this.resetTimeUpdate_(),this.tech_.setCurrentTime(livePoint),this.tech_.trigger({type:"usage",name:"vhs-live-resync"}),!0}const sourceUpdater=this.tech_.vhs.playlistController_.sourceUpdater_,buffered=this.tech_.buffered();if(this.videoUnderflow_({audioBuffered:sourceUpdater.audioBuffered(),videoBuffered:sourceUpdater.videoBuffered(),currentTime:currentTime}))return this.resetTimeUpdate_(),this.tech_.setCurrentTime(currentTime),this.tech_.trigger({type:"usage",name:"vhs-video-underflow"}),!0;const nextRange=findNextRange(buffered,currentTime);return nextRange.length>0&&(this.logger_("Stopped at ".concat(currentTime," and seeking to ").concat(nextRange.start(0))),this.resetTimeUpdate_(),this.skipTheGap_(currentTime),!0)}afterSeekableWindow_(seekable,currentTime,playlist){let allowSeeksWithinUnsafeLiveWindow=arguments.length>3&&void 0!==arguments[3]&&arguments[3];if(!seekable.length)return!1;let allowedEnd=seekable.end(seekable.length-1)+.1;return!playlist.endList&&allowSeeksWithinUnsafeLiveWindow&&(allowedEnd=seekable.end(seekable.length-1)+3*playlist.targetDuration),currentTime>allowedEnd}beforeSeekableWindow_(seekable,currentTime){return!!(seekable.length&&seekable.start(0)>0&&currentTime<seekable.start(0)-this.liveRangeSafeTimeDelta)}videoUnderflow_(_ref79){let gap,{videoBuffered:videoBuffered,audioBuffered:audioBuffered,currentTime:currentTime}=_ref79;if(videoBuffered){if(videoBuffered.length&&audioBuffered.length){const lastVideoRange=findRange(videoBuffered,currentTime-3),videoRange=findRange(videoBuffered,currentTime),audioRange=findRange(audioBuffered,currentTime);audioRange.length&&!videoRange.length&&lastVideoRange.length&&(gap={start:lastVideoRange.end(0),end:audioRange.end(0)})}else{findNextRange(videoBuffered,currentTime).length||(gap=this.gapFromVideoUnderflow_(videoBuffered,currentTime))}return!!gap&&(this.logger_("Encountered a gap in video from ".concat(gap.start," to ").concat(gap.end,". ")+"Seeking to current time ".concat(currentTime)),!0)}}skipTheGap_(scheduledCurrentTime){const buffered=this.tech_.buffered(),currentTime=this.tech_.currentTime(),nextRange=findNextRange(buffered,currentTime);this.resetTimeUpdate_(),0!==nextRange.length&&currentTime===scheduledCurrentTime&&(this.logger_("skipTheGap_:","currentTime:",currentTime,"scheduled currentTime:",scheduledCurrentTime,"nextRange start:",nextRange.start(0)),this.tech_.setCurrentTime(nextRange.start(0)+.03333333333333333),this.tech_.trigger({type:"usage",name:"vhs-gap-skip"}))}gapFromVideoUnderflow_(buffered,currentTime){const gaps=function(buffered){if(buffered.length<2)return createTimeRanges();const ranges=[];for(let i=1;i<buffered.length;i++){const start=buffered.end(i-1),end=buffered.start(i);ranges.push([start,end])}return createTimeRanges(ranges)}(buffered);for(let i=0;i<gaps.length;i++){const start=gaps.start(i),end=gaps.end(i);if(currentTime-start<4&&currentTime-start>2)return{start:start,end:end}}return null}}const defaultOptions={errorInterval:30,getSource(next){return next(this.tech({IWillNotUseThisInPlugins:!0}).currentSource_||this.currentSource())}},initPlugin=function(player,options){let lastCalled=0,seekTo=0;const localOptions=merge(defaultOptions,options);player.ready((()=>{player.trigger({type:"usage",name:"vhs-error-reload-initialized"})}));const loadedMetadataHandler=function(){seekTo&&player.currentTime(seekTo)},setSource=function(sourceObj){null!=sourceObj&&(seekTo=player.duration()!==1/0&&player.currentTime()||0,player.one("loadedmetadata",loadedMetadataHandler),player.src(sourceObj),player.trigger({type:"usage",name:"vhs-error-reload"}),player.play())},errorHandler=function(){if(Date.now()-lastCalled<1e3*localOptions.errorInterval)player.trigger({type:"usage",name:"vhs-error-reload-canceled"});else{if(localOptions.getSource&&"function"==typeof localOptions.getSource)return lastCalled=Date.now(),localOptions.getSource.call(player,setSource);videojs.log.error("ERROR: reloadSourceOnError - The option getSource must be a function!")}},cleanupEvents=function(){player.off("loadedmetadata",loadedMetadataHandler),player.off("error",errorHandler),player.off("dispose",cleanupEvents)};player.on("error",errorHandler),player.on("dispose",cleanupEvents),player.reloadSourceOnError=function(newOptions){cleanupEvents(),initPlugin(player,newOptions)}},reloadSourceOnError=function(options){initPlugin(this,options)};const Vhs={PlaylistLoader:PlaylistLoader,Playlist:Playlist,utils:utils,STANDARD_PLAYLIST_SELECTOR:lastBandwidthSelector,INITIAL_PLAYLIST_SELECTOR:function(){const playlists=this.playlists.main.playlists.filter(Playlist.isEnabled);stableSort(playlists,((a,b)=>comparePlaylistBandwidth(a,b)));return playlists.filter((playlist=>!!codecsForPlaylist(this.playlists.main,playlist).video))[0]||null},lastBandwidthSelector:lastBandwidthSelector,movingAverageBandwidthSelector:function(decay){let average=-1,lastSystemBandwidth=-1;if(decay<0||decay>1)throw new Error("Moving average bandwidth decay must be between 0 and 1.");return function(){const pixelRatio=this.useDevicePixelRatio&&window.devicePixelRatio||1;return average<0&&(average=this.systemBandwidth,lastSystemBandwidth=this.systemBandwidth),this.systemBandwidth>0&&this.systemBandwidth!==lastSystemBandwidth&&(average=decay*this.systemBandwidth+(1-decay)*average,lastSystemBandwidth=this.systemBandwidth),simpleSelector(this.playlists.main,average,parseInt(safeGetComputedStyle(this.tech_.el(),"width"),10)*pixelRatio,parseInt(safeGetComputedStyle(this.tech_.el(),"height"),10)*pixelRatio,this.limitRenditionByPlayerDimensions,this.playlistController_)}},comparePlaylistBandwidth:comparePlaylistBandwidth,comparePlaylistResolution:function(left,right){let leftWidth,rightWidth;return left.attributes.RESOLUTION&&left.attributes.RESOLUTION.width&&(leftWidth=left.attributes.RESOLUTION.width),leftWidth=leftWidth||window.Number.MAX_VALUE,right.attributes.RESOLUTION&&right.attributes.RESOLUTION.width&&(rightWidth=right.attributes.RESOLUTION.width),rightWidth=rightWidth||window.Number.MAX_VALUE,leftWidth===rightWidth&&left.attributes.BANDWIDTH&&right.attributes.BANDWIDTH?left.attributes.BANDWIDTH-right.attributes.BANDWIDTH:leftWidth-rightWidth},xhr:xhrFactory()};Object.keys(Config).forEach((prop=>{Object.defineProperty(Vhs,prop,{get:()=>(videojs.log.warn("using Vhs.".concat(prop," is UNSAFE be sure you know what you are doing")),Config[prop]),set(value){videojs.log.warn("using Vhs.".concat(prop," is UNSAFE be sure you know what you are doing")),"number"!=typeof value||value<0?videojs.log.warn("value of Vhs.".concat(prop," must be greater than or equal to 0")):Config[prop]=value}})}));const handleVhsMediaChange=function(qualityLevels,playlistLoader){const newPlaylist=playlistLoader.media();let selectedIndex=-1;for(let i=0;i<qualityLevels.length;i++)if(qualityLevels[i].id===newPlaylist.id){selectedIndex=i;break}qualityLevels.selectedIndex_=selectedIndex,qualityLevels.trigger({selectedIndex:selectedIndex,type:"change"})};Vhs.canPlaySource=function(){return videojs.log.warn("VHS is no longer a tech. Please remove it from your player's techOrder.")};const waitForKeySessionCreation=_ref80=>{let{player:player,sourceKeySystems:sourceKeySystems,audioMedia:audioMedia,mainPlaylists:mainPlaylists}=_ref80;if(!player.eme.initializeMediaKeys)return Promise.resolve();const keySystemsOptionsArr=((playlists,keySystems)=>playlists.reduce(((keySystemsArr,playlist)=>{if(!playlist.contentProtection)return keySystemsArr;const keySystemsOptions=keySystems.reduce(((keySystemsObj,keySystem)=>{const keySystemOptions=playlist.contentProtection[keySystem];return keySystemOptions&&keySystemOptions.pssh&&(keySystemsObj[keySystem]={pssh:keySystemOptions.pssh}),keySystemsObj}),{});return Object.keys(keySystemsOptions).length&&keySystemsArr.push(keySystemsOptions),keySystemsArr}),[]))(audioMedia?mainPlaylists.concat([audioMedia]):mainPlaylists,Object.keys(sourceKeySystems)),initializationFinishedPromises=[],keySessionCreatedPromises=[];return keySystemsOptionsArr.forEach((keySystemsOptions=>{keySessionCreatedPromises.push(new Promise(((resolve,reject)=>{player.tech_.one("keysessioncreated",resolve)}))),initializationFinishedPromises.push(new Promise(((resolve,reject)=>{player.eme.initializeMediaKeys({keySystems:keySystemsOptions},(err=>{err?reject(err):resolve()}))})))})),Promise.race([Promise.all(initializationFinishedPromises),Promise.race(keySessionCreatedPromises)])},setupEmeOptions=_ref81=>{let{player:player,sourceKeySystems:sourceKeySystems,media:media,audioMedia:audioMedia}=_ref81;const sourceOptions=((keySystemOptions,mainPlaylist,audioPlaylist)=>{if(!keySystemOptions)return keySystemOptions;let codecs={};mainPlaylist&&mainPlaylist.attributes&&mainPlaylist.attributes.CODECS&&(codecs=unwrapCodecList(parseCodecs(mainPlaylist.attributes.CODECS))),audioPlaylist&&audioPlaylist.attributes&&audioPlaylist.attributes.CODECS&&(codecs.audio=audioPlaylist.attributes.CODECS);const videoContentType=getMimeForCodec(codecs.video),audioContentType=getMimeForCodec(codecs.audio),keySystemContentTypes={};for(const keySystem in keySystemOptions)keySystemContentTypes[keySystem]={},audioContentType&&(keySystemContentTypes[keySystem].audioContentType=audioContentType),videoContentType&&(keySystemContentTypes[keySystem].videoContentType=videoContentType),mainPlaylist.contentProtection&&mainPlaylist.contentProtection[keySystem]&&mainPlaylist.contentProtection[keySystem].pssh&&(keySystemContentTypes[keySystem].pssh=mainPlaylist.contentProtection[keySystem].pssh),"string"==typeof keySystemOptions[keySystem]&&(keySystemContentTypes[keySystem].url=keySystemOptions[keySystem]);return merge(keySystemOptions,keySystemContentTypes)})(sourceKeySystems,media,audioMedia);return!!sourceOptions&&(player.currentSource().keySystems=sourceOptions,!(sourceOptions&&!player.eme)||(videojs.log.warn("DRM encrypted source cannot be decrypted without a DRM plugin"),!1))},getVhsLocalStorage=()=>{if(!window.localStorage)return null;const storedObject=window.localStorage.getItem("videojs-vhs");if(!storedObject)return null;try{return JSON.parse(storedObject)}catch(e){return null}};Vhs.supportsNativeHls=function(){if(!document||!document.createElement)return!1;const video=document.createElement("video");if(!videojs.getTech("Html5").isSupported())return!1;return["application/vnd.apple.mpegurl","audio/mpegurl","audio/x-mpegurl","application/x-mpegurl","video/x-mpegurl","video/mpegurl","application/mpegurl"].some((function(canItPlay){return/maybe|probably/i.test(video.canPlayType(canItPlay))}))}(),Vhs.supportsNativeDash=!!(document&&document.createElement&&videojs.getTech("Html5").isSupported())&&/maybe|probably/i.test(document.createElement("video").canPlayType("application/dash+xml")),Vhs.supportsTypeNatively=type=>"hls"===type?Vhs.supportsNativeHls:"dash"===type&&Vhs.supportsNativeDash,Vhs.isSupported=function(){return videojs.log.warn("VHS is no longer a tech. Please remove it from your player's techOrder.")};const Component=videojs.getComponent("Component");class VhsHandler extends Component{constructor(source,tech,options){if(super(tech,options.vhs),"number"==typeof options.initialBandwidth&&(this.options_.bandwidth=options.initialBandwidth),this.logger_=logger("VhsHandler"),tech.options_&&tech.options_.playerId){const _player=videojs.getPlayer(tech.options_.playerId);this.player_=_player}if(this.tech_=tech,this.source_=source,this.stats={},this.ignoreNextSeekingEvent_=!1,this.setOptions_(),this.options_.overrideNative&&tech.overrideNativeAudioTracks&&tech.overrideNativeVideoTracks)tech.overrideNativeAudioTracks(!0),tech.overrideNativeVideoTracks(!0);else if(this.options_.overrideNative&&(tech.featuresNativeVideoTracks||tech.featuresNativeAudioTracks))throw new Error("Overriding native VHS requires emulated tracks. See https://git.io/vMpjB");this.on(document,["fullscreenchange","webkitfullscreenchange","mozfullscreenchange","MSFullscreenChange"],(event=>{const fullscreenElement=document.fullscreenElement||document.webkitFullscreenElement||document.mozFullScreenElement||document.msFullscreenElement;fullscreenElement&&fullscreenElement.contains(this.tech_.el())?this.playlistController_.fastQualityChange_():this.playlistController_.checkABR_()})),this.on(this.tech_,"seeking",(function(){this.ignoreNextSeekingEvent_?this.ignoreNextSeekingEvent_=!1:this.setCurrentTime(this.tech_.currentTime())})),this.on(this.tech_,"error",(function(){this.tech_.error()&&this.playlistController_&&this.playlistController_.pauseLoading()})),this.on(this.tech_,"play",this.play)}setOptions_(){if(this.options_.withCredentials=this.options_.withCredentials||!1,this.options_.limitRenditionByPlayerDimensions=!1!==this.options_.limitRenditionByPlayerDimensions,this.options_.useDevicePixelRatio=this.options_.useDevicePixelRatio||!1,this.options_.useBandwidthFromLocalStorage=void 0!==this.source_.useBandwidthFromLocalStorage?this.source_.useBandwidthFromLocalStorage:this.options_.useBandwidthFromLocalStorage||!1,this.options_.useNetworkInformationApi=this.options_.useNetworkInformationApi||!1,this.options_.useDtsForTimestampOffset=this.options_.useDtsForTimestampOffset||!1,this.options_.customTagParsers=this.options_.customTagParsers||[],this.options_.customTagMappers=this.options_.customTagMappers||[],this.options_.cacheEncryptionKeys=this.options_.cacheEncryptionKeys||!1,this.options_.llhls=!1!==this.options_.llhls,this.options_.bufferBasedABR=this.options_.bufferBasedABR||!1,"number"!=typeof this.options_.playlistExclusionDuration&&(this.options_.playlistExclusionDuration=300),"number"!=typeof this.options_.bandwidth&&this.options_.useBandwidthFromLocalStorage){const storedObject=getVhsLocalStorage();storedObject&&storedObject.bandwidth&&(this.options_.bandwidth=storedObject.bandwidth,this.tech_.trigger({type:"usage",name:"vhs-bandwidth-from-local-storage"})),storedObject&&storedObject.throughput&&(this.options_.throughput=storedObject.throughput,this.tech_.trigger({type:"usage",name:"vhs-throughput-from-local-storage"}))}"number"!=typeof this.options_.bandwidth&&(this.options_.bandwidth=Config.INITIAL_BANDWIDTH),this.options_.enableLowInitialPlaylist=this.options_.enableLowInitialPlaylist&&this.options_.bandwidth===Config.INITIAL_BANDWIDTH,["withCredentials","useDevicePixelRatio","limitRenditionByPlayerDimensions","bandwidth","customTagParsers","customTagMappers","cacheEncryptionKeys","playlistSelector","initialPlaylistSelector","bufferBasedABR","liveRangeSafeTimeDelta","llhls","useNetworkInformationApi","useDtsForTimestampOffset","exactManifestTimings","leastPixelDiffSelector"].forEach((option=>{void 0!==this.source_[option]&&(this.options_[option]=this.source_[option])})),this.limitRenditionByPlayerDimensions=this.options_.limitRenditionByPlayerDimensions,this.useDevicePixelRatio=this.options_.useDevicePixelRatio}src(src,type){if(!src)return;var dataUri;this.setOptions_(),this.options_.src=0===(dataUri=this.source_.src).toLowerCase().indexOf("data:application/vnd.videojs.vhs+json,")?JSON.parse(dataUri.substring(dataUri.indexOf(",")+1)):dataUri,this.options_.tech=this.tech_,this.options_.externVhs=Vhs,this.options_.sourceType=simpleTypeFromSourceType(type),this.options_.seekTo=time=>{this.tech_.setCurrentTime(time)},this.playlistController_=new PlaylistController(this.options_);const playbackWatcherOptions=merge({liveRangeSafeTimeDelta:.1},this.options_,{seekable:()=>this.seekable(),media:()=>this.playlistController_.media(),playlistController:this.playlistController_});this.playbackWatcher_=new PlaybackWatcher(playbackWatcherOptions),this.playlistController_.on("error",(()=>{const player=videojs.players[this.tech_.options_.playerId];let error=this.playlistController_.error;"object"!=typeof error||error.code?"string"==typeof error&&(error={message:error,code:3}):error.code=3,player.error(error)}));const defaultSelector=this.options_.bufferBasedABR?Vhs.movingAverageBandwidthSelector(.55):Vhs.STANDARD_PLAYLIST_SELECTOR;this.playlistController_.selectPlaylist=this.selectPlaylist?this.selectPlaylist.bind(this):defaultSelector.bind(this),this.playlistController_.selectInitialPlaylist=Vhs.INITIAL_PLAYLIST_SELECTOR.bind(this),this.playlists=this.playlistController_.mainPlaylistLoader_,this.mediaSource=this.playlistController_.mediaSource,Object.defineProperties(this,{selectPlaylist:{get(){return this.playlistController_.selectPlaylist},set(selectPlaylist){this.playlistController_.selectPlaylist=selectPlaylist.bind(this)}},throughput:{get(){return this.playlistController_.mainSegmentLoader_.throughput.rate},set(throughput){this.playlistController_.mainSegmentLoader_.throughput.rate=throughput,this.playlistController_.mainSegmentLoader_.throughput.count=1}},bandwidth:{get(){let playerBandwidthEst=this.playlistController_.mainSegmentLoader_.bandwidth;const networkInformation=window.navigator.connection||window.navigator.mozConnection||window.navigator.webkitConnection;if(this.options_.useNetworkInformationApi&&networkInformation){const networkInfoBandwidthEstBitsPerSec=1e3*networkInformation.downlink*1e3;playerBandwidthEst=networkInfoBandwidthEstBitsPerSec>=1e7&&playerBandwidthEst>=1e7?Math.max(playerBandwidthEst,networkInfoBandwidthEstBitsPerSec):networkInfoBandwidthEstBitsPerSec}return playerBandwidthEst},set(bandwidth){this.playlistController_.mainSegmentLoader_.bandwidth=bandwidth,this.playlistController_.mainSegmentLoader_.throughput={rate:0,count:0}}},systemBandwidth:{get(){const invBandwidth=1/(this.bandwidth||1);let invThroughput;invThroughput=this.throughput>0?1/this.throughput:0;return Math.floor(1/(invBandwidth+invThroughput))},set(){videojs.log.error('The "systemBandwidth" property is read-only')}}}),this.options_.bandwidth&&(this.bandwidth=this.options_.bandwidth),this.options_.throughput&&(this.throughput=this.options_.throughput),Object.defineProperties(this.stats,{bandwidth:{get:()=>this.bandwidth||0,enumerable:!0},mediaRequests:{get:()=>this.playlistController_.mediaRequests_()||0,enumerable:!0},mediaRequestsAborted:{get:()=>this.playlistController_.mediaRequestsAborted_()||0,enumerable:!0},mediaRequestsTimedout:{get:()=>this.playlistController_.mediaRequestsTimedout_()||0,enumerable:!0},mediaRequestsErrored:{get:()=>this.playlistController_.mediaRequestsErrored_()||0,enumerable:!0},mediaTransferDuration:{get:()=>this.playlistController_.mediaTransferDuration_()||0,enumerable:!0},mediaBytesTransferred:{get:()=>this.playlistController_.mediaBytesTransferred_()||0,enumerable:!0},mediaSecondsLoaded:{get:()=>this.playlistController_.mediaSecondsLoaded_()||0,enumerable:!0},mediaAppends:{get:()=>this.playlistController_.mediaAppends_()||0,enumerable:!0},mainAppendsToLoadedData:{get:()=>this.playlistController_.mainAppendsToLoadedData_()||0,enumerable:!0},audioAppendsToLoadedData:{get:()=>this.playlistController_.audioAppendsToLoadedData_()||0,enumerable:!0},appendsToLoadedData:{get:()=>this.playlistController_.appendsToLoadedData_()||0,enumerable:!0},timeToLoadedData:{get:()=>this.playlistController_.timeToLoadedData_()||0,enumerable:!0},buffered:{get:()=>timeRangesToArray(this.tech_.buffered()),enumerable:!0},currentTime:{get:()=>this.tech_.currentTime(),enumerable:!0},currentSource:{get:()=>this.tech_.currentSource_,enumerable:!0},currentTech:{get:()=>this.tech_.name_,enumerable:!0},duration:{get:()=>this.tech_.duration(),enumerable:!0},main:{get:()=>this.playlists.main,enumerable:!0},playerDimensions:{get:()=>this.tech_.currentDimensions(),enumerable:!0},seekable:{get:()=>timeRangesToArray(this.tech_.seekable()),enumerable:!0},timestamp:{get:()=>Date.now(),enumerable:!0},videoPlaybackQuality:{get:()=>this.tech_.getVideoPlaybackQuality(),enumerable:!0}}),this.tech_.one("canplay",this.playlistController_.setupFirstPlay.bind(this.playlistController_)),this.tech_.on("bandwidthupdate",(()=>{this.options_.useBandwidthFromLocalStorage&&(options=>{if(!window.localStorage)return!1;let objectToStore=getVhsLocalStorage();objectToStore=objectToStore?merge(objectToStore,options):options;try{window.localStorage.setItem("videojs-vhs",JSON.stringify(objectToStore))}catch(e){return!1}})({bandwidth:this.bandwidth,throughput:Math.round(this.throughput)})})),this.playlistController_.on("selectedinitialmedia",(()=>{var vhsHandler;(vhsHandler=this).representations=()=>{const main=vhsHandler.playlistController_.main(),playlists=isAudioOnly(main)?vhsHandler.playlistController_.getAudioTrackPlaylists_():main.playlists;return playlists?playlists.filter((media=>!isIncompatible(media))).map(((e,i)=>new Representation(vhsHandler,e,e.id))):[]}})),this.playlistController_.sourceUpdater_.on("createdsourcebuffers",(()=>{this.setupEme_()})),this.on(this.playlistController_,"progress",(function(){this.tech_.trigger("progress")})),this.on(this.playlistController_,"firstplay",(function(){this.ignoreNextSeekingEvent_=!0})),this.setupQualityLevels_(),this.tech_.el()&&(this.mediaSourceUrl_=window.URL.createObjectURL(this.playlistController_.mediaSource),this.tech_.src(this.mediaSourceUrl_))}createKeySessions_(){const audioPlaylistLoader=this.playlistController_.mediaTypes_.AUDIO.activePlaylistLoader;this.logger_("waiting for EME key session creation"),waitForKeySessionCreation({player:this.player_,sourceKeySystems:this.source_.keySystems,audioMedia:audioPlaylistLoader&&audioPlaylistLoader.media(),mainPlaylists:this.playlists.main.playlists}).then((()=>{this.logger_("created EME key session"),this.playlistController_.sourceUpdater_.initializedEme()})).catch((err=>{this.logger_("error while creating EME key session",err),this.player_.error({message:"Failed to initialize media keys for EME",code:3})}))}handleWaitingForKey_(){this.logger_("waitingforkey fired, attempting to create any new key sessions"),this.createKeySessions_()}setupEme_(){const audioPlaylistLoader=this.playlistController_.mediaTypes_.AUDIO.activePlaylistLoader,didSetupEmeOptions=setupEmeOptions({player:this.player_,sourceKeySystems:this.source_.keySystems,media:this.playlists.media(),audioMedia:audioPlaylistLoader&&audioPlaylistLoader.media()});this.player_.tech_.on("keystatuschange",(e=>{if("output-restricted"!==e.status)return;const mainPlaylist=this.playlistController_.main();if(!mainPlaylist||!mainPlaylist.playlists)return;const excludedHDPlaylists=[];mainPlaylist.playlists.forEach((playlist=>{playlist&&playlist.attributes&&playlist.attributes.RESOLUTION&&playlist.attributes.RESOLUTION.height>=720&&(!playlist.excludeUntil||playlist.excludeUntil<1/0)&&(playlist.excludeUntil=1/0,excludedHDPlaylists.push(playlist))})),excludedHDPlaylists.length&&(videojs.log.warn('DRM keystatus changed to "output-restricted." Removing the following HD playlists that will most likely fail to play and clearing the buffer. This may be due to HDCP restrictions on the stream and the capabilities of the current device.',...excludedHDPlaylists),this.playlistController_.fastQualityChange_())})),this.handleWaitingForKey_=this.handleWaitingForKey_.bind(this),this.player_.tech_.on("waitingforkey",this.handleWaitingForKey_),11!==videojs.browser.IE_VERSION&&didSetupEmeOptions?this.createKeySessions_():this.playlistController_.sourceUpdater_.initializedEme()}setupQualityLevels_(){const player=videojs.players[this.tech_.options_.playerId];player&&player.qualityLevels&&!this.qualityLevels_&&(this.qualityLevels_=player.qualityLevels(),this.playlistController_.on("selectedinitialmedia",(()=>{var qualityLevels,vhs;qualityLevels=this.qualityLevels_,(vhs=this).representations().forEach((rep=>{qualityLevels.addQualityLevel(rep)})),handleVhsMediaChange(qualityLevels,vhs.playlists)})),this.playlists.on("mediachange",(()=>{handleVhsMediaChange(this.qualityLevels_,this.playlists)})))}static version(){return{"@videojs/http-streaming":"3.0.2","mux.js":"6.3.0","mpd-parser":"1.0.1","m3u8-parser":"6.0.0","aes-decrypter":"4.0.1"}}version(){return this.constructor.version()}canChangeType(){return SourceUpdater.canChangeType()}play(){this.playlistController_.play()}setCurrentTime(currentTime){this.playlistController_.setCurrentTime(currentTime)}duration(){return this.playlistController_.duration()}seekable(){return this.playlistController_.seekable()}dispose(){this.playbackWatcher_&&this.playbackWatcher_.dispose(),this.playlistController_&&this.playlistController_.dispose(),this.qualityLevels_&&this.qualityLevels_.dispose(),this.tech_&&this.tech_.vhs&&delete this.tech_.vhs,this.mediaSourceUrl_&&window.URL.revokeObjectURL&&(window.URL.revokeObjectURL(this.mediaSourceUrl_),this.mediaSourceUrl_=null),this.tech_&&this.tech_.off("waitingforkey",this.handleWaitingForKey_),super.dispose()}convertToProgramTime(time,callback){return getProgramTime({playlist:this.playlistController_.media(),time:time,callback:callback})}seekToProgramTime(programTime,callback){let pauseAfterSeek=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],retryCount=arguments.length>3&&void 0!==arguments[3]?arguments[3]:2;return seekToProgramTime({programTime:programTime,playlist:this.playlistController_.media(),retryCount:retryCount,pauseAfterSeek:pauseAfterSeek,seekTo:this.options_.seekTo,tech:this.options_.tech,callback:callback})}}const VhsSourceHandler={name:"videojs-http-streaming",VERSION:"3.0.2",canHandleSource(srcObj){let options=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};const localOptions=merge(videojs.options,options);return VhsSourceHandler.canPlayType(srcObj.type,localOptions)},handleSource(source,tech){let options=arguments.length>2&&void 0!==arguments[2]?arguments[2]:{};const localOptions=merge(videojs.options,options);return tech.vhs=new VhsHandler(source,tech,localOptions),tech.vhs.xhr=xhrFactory(),tech.vhs.src(source.src,source.type),tech.vhs},canPlayType(type,options){const simpleType=simpleTypeFromSourceType(type);if(!simpleType)return"";const overrideNative=VhsSourceHandler.getOverrideNative(options);return!Vhs.supportsTypeNatively(simpleType)||overrideNative?"maybe":""},getOverrideNative(){let options=arguments.length>0&&void 0!==arguments[0]?arguments[0]:{};const{vhs:vhs={}}=options,defaultOverrideNative=!(videojs.browser.IS_ANY_SAFARI||videojs.browser.IS_IOS),{overrideNative:overrideNative=defaultOverrideNative}=vhs;return overrideNative}};return browserSupportsCodec("avc1.4d400d,mp4a.40.2")&&videojs.getTech("Html5").registerSourceHandler(VhsSourceHandler,0),videojs.VhsHandler=VhsHandler,videojs.VhsSourceHandler=VhsSourceHandler,videojs.Vhs=Vhs,videojs.use||videojs.registerComponent("Vhs",Vhs),videojs.options.vhs=videojs.options.vhs||{},videojs.getPlugin&&videojs.getPlugin("reloadSourceOnError")||videojs.registerPlugin("reloadSourceOnError",reloadSourceOnError),videojs}));
 
 //# sourceMappingURL=video-lazy.min.js.map
\ No newline at end of file
diff --git a/media/player/videojs/amd/build/video-lazy.min.js.map b/media/player/videojs/amd/build/video-lazy.min.js.map
index 39f20eb5e36..edb51eaf093 100644
--- a/media/player/videojs/amd/build/video-lazy.min.js.map
+++ b/media/player/videojs/amd/build/video-lazy.min.js.map
@@ -1 +1 @@
-{"version":3,"file":"video-lazy.min.js","sources":["../src/video-lazy.js"],"sourcesContent":["/**\n * @license\n * Video.js 7.20.3 <http://videojs.com/>\n * Copyright Brightcove, Inc. <https://www.brightcove.com/>\n * Available under Apache License Version 2.0\n * <https://github.com/videojs/video.js/blob/main/LICENSE>\n *\n * Includes vtt.js <https://github.com/mozilla/vtt.js>\n * Available under Apache License Version 2.0\n * <https://github.com/mozilla/vtt.js/blob/main/LICENSE>\n */\n\n (function (global, factory) {\n  typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :\n  typeof define === 'function' && define.amd ? define(factory) :\n  (global = typeof globalThis !== 'undefined' ? globalThis : global || self, global.videojs = factory());\n}(this, (function () { 'use strict';\n\n  var version$5 = \"7.20.3\";\n\n  /**\n   * An Object that contains lifecycle hooks as keys which point to an array\n   * of functions that are run when a lifecycle is triggered\n   *\n   * @private\n   */\n  var hooks_ = {};\n  /**\n   * Get a list of hooks for a specific lifecycle\n   *\n   * @param  {string} type\n   *         the lifecyle to get hooks from\n   *\n   * @param  {Function|Function[]} [fn]\n   *         Optionally add a hook (or hooks) to the lifecycle that your are getting.\n   *\n   * @return {Array}\n   *         an array of hooks, or an empty array if there are none.\n   */\n\n  var hooks = function hooks(type, fn) {\n    hooks_[type] = hooks_[type] || [];\n\n    if (fn) {\n      hooks_[type] = hooks_[type].concat(fn);\n    }\n\n    return hooks_[type];\n  };\n  /**\n   * Add a function hook to a specific videojs lifecycle.\n   *\n   * @param {string} type\n   *        the lifecycle to hook the function to.\n   *\n   * @param {Function|Function[]}\n   *        The function or array of functions to attach.\n   */\n\n\n  var hook = function hook(type, fn) {\n    hooks(type, fn);\n  };\n  /**\n   * Remove a hook from a specific videojs lifecycle.\n   *\n   * @param  {string} type\n   *         the lifecycle that the function hooked to\n   *\n   * @param  {Function} fn\n   *         The hooked function to remove\n   *\n   * @return {boolean}\n   *         The function that was removed or undef\n   */\n\n\n  var removeHook = function removeHook(type, fn) {\n    var index = hooks(type).indexOf(fn);\n\n    if (index <= -1) {\n      return false;\n    }\n\n    hooks_[type] = hooks_[type].slice();\n    hooks_[type].splice(index, 1);\n    return true;\n  };\n  /**\n   * Add a function hook that will only run once to a specific videojs lifecycle.\n   *\n   * @param {string} type\n   *        the lifecycle to hook the function to.\n   *\n   * @param {Function|Function[]}\n   *        The function or array of functions to attach.\n   */\n\n\n  var hookOnce = function hookOnce(type, fn) {\n    hooks(type, [].concat(fn).map(function (original) {\n      var wrapper = function wrapper() {\n        removeHook(type, wrapper);\n        return original.apply(void 0, arguments);\n      };\n\n      return wrapper;\n    }));\n  };\n\n  /**\n   * @file fullscreen-api.js\n   * @module fullscreen-api\n   * @private\n   */\n\n  /**\n   * Store the browser-specific methods for the fullscreen API.\n   *\n   * @type {Object}\n   * @see [Specification]{@link https://fullscreen.spec.whatwg.org}\n   * @see [Map Approach From Screenfull.js]{@link https://github.com/sindresorhus/screenfull.js}\n   */\n  var FullscreenApi = {\n    prefixed: true\n  }; // browser API methods\n\n  var apiMap = [['requestFullscreen', 'exitFullscreen', 'fullscreenElement', 'fullscreenEnabled', 'fullscreenchange', 'fullscreenerror', 'fullscreen'], // WebKit\n  ['webkitRequestFullscreen', 'webkitExitFullscreen', 'webkitFullscreenElement', 'webkitFullscreenEnabled', 'webkitfullscreenchange', 'webkitfullscreenerror', '-webkit-full-screen'], // Mozilla\n  ['mozRequestFullScreen', 'mozCancelFullScreen', 'mozFullScreenElement', 'mozFullScreenEnabled', 'mozfullscreenchange', 'mozfullscreenerror', '-moz-full-screen'], // Microsoft\n  ['msRequestFullscreen', 'msExitFullscreen', 'msFullscreenElement', 'msFullscreenEnabled', 'MSFullscreenChange', 'MSFullscreenError', '-ms-fullscreen']];\n  var specApi = apiMap[0];\n  var browserApi; // determine the supported set of functions\n\n  for (var i = 0; i < apiMap.length; i++) {\n    // check for exitFullscreen function\n    if (apiMap[i][1] in document) {\n      browserApi = apiMap[i];\n      break;\n    }\n  } // map the browser API names to the spec API names\n\n\n  if (browserApi) {\n    for (var _i = 0; _i < browserApi.length; _i++) {\n      FullscreenApi[specApi[_i]] = browserApi[_i];\n    }\n\n    FullscreenApi.prefixed = browserApi[0] !== specApi[0];\n  }\n\n  /**\n   * @file create-logger.js\n   * @module create-logger\n   */\n  // This is the private tracking variable for the logging history.\n  var history = [];\n  /**\n   * Log messages to the console and history based on the type of message\n   *\n   * @private\n   * @param  {string} type\n   *         The name of the console method to use.\n   *\n   * @param  {Array} args\n   *         The arguments to be passed to the matching console method.\n   */\n\n  var LogByTypeFactory = function LogByTypeFactory(name, log) {\n    return function (type, level, args) {\n      var lvl = log.levels[level];\n      var lvlRegExp = new RegExp(\"^(\" + lvl + \")$\");\n\n      if (type !== 'log') {\n        // Add the type to the front of the message when it's not \"log\".\n        args.unshift(type.toUpperCase() + ':');\n      } // Add console prefix after adding to history.\n\n\n      args.unshift(name + ':'); // Add a clone of the args at this point to history.\n\n      if (history) {\n        history.push([].concat(args)); // only store 1000 history entries\n\n        var splice = history.length - 1000;\n        history.splice(0, splice > 0 ? splice : 0);\n      } // If there's no console then don't try to output messages, but they will\n      // still be stored in history.\n\n\n      if (!window.console) {\n        return;\n      } // Was setting these once outside of this function, but containing them\n      // in the function makes it easier to test cases where console doesn't exist\n      // when the module is executed.\n\n\n      var fn = window.console[type];\n\n      if (!fn && type === 'debug') {\n        // Certain browsers don't have support for console.debug. For those, we\n        // should default to the closest comparable log.\n        fn = window.console.info || window.console.log;\n      } // Bail out if there's no console or if this type is not allowed by the\n      // current logging level.\n\n\n      if (!fn || !lvl || !lvlRegExp.test(type)) {\n        return;\n      }\n\n      fn[Array.isArray(args) ? 'apply' : 'call'](window.console, args);\n    };\n  };\n\n  function createLogger$1(name) {\n    // This is the private tracking variable for logging level.\n    var level = 'info'; // the curried logByType bound to the specific log and history\n\n    var logByType;\n    /**\n     * Logs plain debug messages. Similar to `console.log`.\n     *\n     * Due to [limitations](https://github.com/jsdoc3/jsdoc/issues/955#issuecomment-313829149)\n     * of our JSDoc template, we cannot properly document this as both a function\n     * and a namespace, so its function signature is documented here.\n     *\n     * #### Arguments\n     * ##### *args\n     * Mixed[]\n     *\n     * Any combination of values that could be passed to `console.log()`.\n     *\n     * #### Return Value\n     *\n     * `undefined`\n     *\n     * @namespace\n     * @param    {Mixed[]} args\n     *           One or more messages or objects that should be logged.\n     */\n\n    var log = function log() {\n      for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {\n        args[_key] = arguments[_key];\n      }\n\n      logByType('log', level, args);\n    }; // This is the logByType helper that the logging methods below use\n\n\n    logByType = LogByTypeFactory(name, log);\n    /**\n     * Create a new sublogger which chains the old name to the new name.\n     *\n     * For example, doing `videojs.log.createLogger('player')` and then using that logger will log the following:\n     * ```js\n     *  mylogger('foo');\n     *  // > VIDEOJS: player: foo\n     * ```\n     *\n     * @param {string} name\n     *        The name to add call the new logger\n     * @return {Object}\n     */\n\n    log.createLogger = function (subname) {\n      return createLogger$1(name + ': ' + subname);\n    };\n    /**\n     * Enumeration of available logging levels, where the keys are the level names\n     * and the values are `|`-separated strings containing logging methods allowed\n     * in that logging level. These strings are used to create a regular expression\n     * matching the function name being called.\n     *\n     * Levels provided by Video.js are:\n     *\n     * - `off`: Matches no calls. Any value that can be cast to `false` will have\n     *   this effect. The most restrictive.\n     * - `all`: Matches only Video.js-provided functions (`debug`, `log`,\n     *   `log.warn`, and `log.error`).\n     * - `debug`: Matches `log.debug`, `log`, `log.warn`, and `log.error` calls.\n     * - `info` (default): Matches `log`, `log.warn`, and `log.error` calls.\n     * - `warn`: Matches `log.warn` and `log.error` calls.\n     * - `error`: Matches only `log.error` calls.\n     *\n     * @type {Object}\n     */\n\n\n    log.levels = {\n      all: 'debug|log|warn|error',\n      off: '',\n      debug: 'debug|log|warn|error',\n      info: 'log|warn|error',\n      warn: 'warn|error',\n      error: 'error',\n      DEFAULT: level\n    };\n    /**\n     * Get or set the current logging level.\n     *\n     * If a string matching a key from {@link module:log.levels} is provided, acts\n     * as a setter.\n     *\n     * @param  {string} [lvl]\n     *         Pass a valid level to set a new logging level.\n     *\n     * @return {string}\n     *         The current logging level.\n     */\n\n    log.level = function (lvl) {\n      if (typeof lvl === 'string') {\n        if (!log.levels.hasOwnProperty(lvl)) {\n          throw new Error(\"\\\"\" + lvl + \"\\\" in not a valid log level\");\n        }\n\n        level = lvl;\n      }\n\n      return level;\n    };\n    /**\n     * Returns an array containing everything that has been logged to the history.\n     *\n     * This array is a shallow clone of the internal history record. However, its\n     * contents are _not_ cloned; so, mutating objects inside this array will\n     * mutate them in history.\n     *\n     * @return {Array}\n     */\n\n\n    log.history = function () {\n      return history ? [].concat(history) : [];\n    };\n    /**\n     * Allows you to filter the history by the given logger name\n     *\n     * @param {string} fname\n     *        The name to filter by\n     *\n     * @return {Array}\n     *         The filtered list to return\n     */\n\n\n    log.history.filter = function (fname) {\n      return (history || []).filter(function (historyItem) {\n        // if the first item in each historyItem includes `fname`, then it's a match\n        return new RegExp(\".*\" + fname + \".*\").test(historyItem[0]);\n      });\n    };\n    /**\n     * Clears the internal history tracking, but does not prevent further history\n     * tracking.\n     */\n\n\n    log.history.clear = function () {\n      if (history) {\n        history.length = 0;\n      }\n    };\n    /**\n     * Disable history tracking if it is currently enabled.\n     */\n\n\n    log.history.disable = function () {\n      if (history !== null) {\n        history.length = 0;\n        history = null;\n      }\n    };\n    /**\n     * Enable history tracking if it is currently disabled.\n     */\n\n\n    log.history.enable = function () {\n      if (history === null) {\n        history = [];\n      }\n    };\n    /**\n     * Logs error messages. Similar to `console.error`.\n     *\n     * @param {Mixed[]} args\n     *        One or more messages or objects that should be logged as an error\n     */\n\n\n    log.error = function () {\n      for (var _len2 = arguments.length, args = new Array(_len2), _key2 = 0; _key2 < _len2; _key2++) {\n        args[_key2] = arguments[_key2];\n      }\n\n      return logByType('error', level, args);\n    };\n    /**\n     * Logs warning messages. Similar to `console.warn`.\n     *\n     * @param {Mixed[]} args\n     *        One or more messages or objects that should be logged as a warning.\n     */\n\n\n    log.warn = function () {\n      for (var _len3 = arguments.length, args = new Array(_len3), _key3 = 0; _key3 < _len3; _key3++) {\n        args[_key3] = arguments[_key3];\n      }\n\n      return logByType('warn', level, args);\n    };\n    /**\n     * Logs debug messages. Similar to `console.debug`, but may also act as a comparable\n     * log if `console.debug` is not available\n     *\n     * @param {Mixed[]} args\n     *        One or more messages or objects that should be logged as debug.\n     */\n\n\n    log.debug = function () {\n      for (var _len4 = arguments.length, args = new Array(_len4), _key4 = 0; _key4 < _len4; _key4++) {\n        args[_key4] = arguments[_key4];\n      }\n\n      return logByType('debug', level, args);\n    };\n\n    return log;\n  }\n\n  /**\n   * @file log.js\n   * @module log\n   */\n  var log$1 = createLogger$1('VIDEOJS');\n  var createLogger = log$1.createLogger;\n\n  var commonjsGlobal = typeof globalThis !== 'undefined' ? globalThis : typeof window !== 'undefined' ? window : typeof global !== 'undefined' ? global : typeof self !== 'undefined' ? self : {};\n\n  function createCommonjsModule(fn, module) {\n  \treturn module = { exports: {} }, fn(module, module.exports), module.exports;\n  }\n\n  var _extends_1 = createCommonjsModule(function (module) {\n    function _extends() {\n      module.exports = _extends = Object.assign || function (target) {\n        for (var i = 1; i < arguments.length; i++) {\n          var source = arguments[i];\n\n          for (var key in source) {\n            if (Object.prototype.hasOwnProperty.call(source, key)) {\n              target[key] = source[key];\n            }\n          }\n        }\n\n        return target;\n      };\n\n      return _extends.apply(this, arguments);\n    }\n\n    module.exports = _extends;\n  });\n\n  /**\n   * @file obj.js\n   * @module obj\n   */\n\n  /**\n   * @callback obj:EachCallback\n   *\n   * @param {Mixed} value\n   *        The current key for the object that is being iterated over.\n   *\n   * @param {string} key\n   *        The current key-value for object that is being iterated over\n   */\n\n  /**\n   * @callback obj:ReduceCallback\n   *\n   * @param {Mixed} accum\n   *        The value that is accumulating over the reduce loop.\n   *\n   * @param {Mixed} value\n   *        The current key for the object that is being iterated over.\n   *\n   * @param {string} key\n   *        The current key-value for object that is being iterated over\n   *\n   * @return {Mixed}\n   *         The new accumulated value.\n   */\n  var toString$1 = Object.prototype.toString;\n  /**\n   * Get the keys of an Object\n   *\n   * @param {Object}\n   *        The Object to get the keys from\n   *\n   * @return {string[]}\n   *         An array of the keys from the object. Returns an empty array if the\n   *         object passed in was invalid or had no keys.\n   *\n   * @private\n   */\n\n  var keys = function keys(object) {\n    return isObject$1(object) ? Object.keys(object) : [];\n  };\n  /**\n   * Array-like iteration for objects.\n   *\n   * @param {Object} object\n   *        The object to iterate over\n   *\n   * @param {obj:EachCallback} fn\n   *        The callback function which is called for each key in the object.\n   */\n\n\n  function each(object, fn) {\n    keys(object).forEach(function (key) {\n      return fn(object[key], key);\n    });\n  }\n  /**\n   * Array-like reduce for objects.\n   *\n   * @param {Object} object\n   *        The Object that you want to reduce.\n   *\n   * @param {Function} fn\n   *         A callback function which is called for each key in the object. It\n   *         receives the accumulated value and the per-iteration value and key\n   *         as arguments.\n   *\n   * @param {Mixed} [initial = 0]\n   *        Starting value\n   *\n   * @return {Mixed}\n   *         The final accumulated value.\n   */\n\n  function reduce(object, fn, initial) {\n    if (initial === void 0) {\n      initial = 0;\n    }\n\n    return keys(object).reduce(function (accum, key) {\n      return fn(accum, object[key], key);\n    }, initial);\n  }\n  /**\n   * Object.assign-style object shallow merge/extend.\n   *\n   * @param  {Object} target\n   * @param  {Object} ...sources\n   * @return {Object}\n   */\n\n  function assign(target) {\n    for (var _len = arguments.length, sources = new Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {\n      sources[_key - 1] = arguments[_key];\n    }\n\n    if (Object.assign) {\n      return _extends_1.apply(void 0, [target].concat(sources));\n    }\n\n    sources.forEach(function (source) {\n      if (!source) {\n        return;\n      }\n\n      each(source, function (value, key) {\n        target[key] = value;\n      });\n    });\n    return target;\n  }\n  /**\n   * Returns whether a value is an object of any kind - including DOM nodes,\n   * arrays, regular expressions, etc. Not functions, though.\n   *\n   * This avoids the gotcha where using `typeof` on a `null` value\n   * results in `'object'`.\n   *\n   * @param  {Object} value\n   * @return {boolean}\n   */\n\n  function isObject$1(value) {\n    return !!value && typeof value === 'object';\n  }\n  /**\n   * Returns whether an object appears to be a \"plain\" object - that is, a\n   * direct instance of `Object`.\n   *\n   * @param  {Object} value\n   * @return {boolean}\n   */\n\n  function isPlain(value) {\n    return isObject$1(value) && toString$1.call(value) === '[object Object]' && value.constructor === Object;\n  }\n\n  /**\n   * @file computed-style.js\n   * @module computed-style\n   */\n\n  /**\n   * A safe getComputedStyle.\n   *\n   * This is needed because in Firefox, if the player is loaded in an iframe with\n   * `display:none`, then `getComputedStyle` returns `null`, so, we do a\n   * null-check to make sure that the player doesn't break in these cases.\n   *\n   * @function\n   * @param    {Element} el\n   *           The element you want the computed style of\n   *\n   * @param    {string} prop\n   *           The property name you want\n   *\n   * @see      https://bugzilla.mozilla.org/show_bug.cgi?id=548397\n   */\n  function computedStyle(el, prop) {\n    if (!el || !prop) {\n      return '';\n    }\n\n    if (typeof window.getComputedStyle === 'function') {\n      var computedStyleValue;\n\n      try {\n        computedStyleValue = window.getComputedStyle(el);\n      } catch (e) {\n        return '';\n      }\n\n      return computedStyleValue ? computedStyleValue.getPropertyValue(prop) || computedStyleValue[prop] : '';\n    }\n\n    return '';\n  }\n\n  /**\n   * @file browser.js\n   * @module browser\n   */\n  var USER_AGENT = window.navigator && window.navigator.userAgent || '';\n  var webkitVersionMap = /AppleWebKit\\/([\\d.]+)/i.exec(USER_AGENT);\n  var appleWebkitVersion = webkitVersionMap ? parseFloat(webkitVersionMap.pop()) : null;\n  /**\n   * Whether or not this device is an iPod.\n   *\n   * @static\n   * @const\n   * @type {Boolean}\n   */\n\n  var IS_IPOD = /iPod/i.test(USER_AGENT);\n  /**\n   * The detected iOS version - or `null`.\n   *\n   * @static\n   * @const\n   * @type {string|null}\n   */\n\n  var IOS_VERSION = function () {\n    var match = USER_AGENT.match(/OS (\\d+)_/i);\n\n    if (match && match[1]) {\n      return match[1];\n    }\n\n    return null;\n  }();\n  /**\n   * Whether or not this is an Android device.\n   *\n   * @static\n   * @const\n   * @type {Boolean}\n   */\n\n  var IS_ANDROID = /Android/i.test(USER_AGENT);\n  /**\n   * The detected Android version - or `null`.\n   *\n   * @static\n   * @const\n   * @type {number|string|null}\n   */\n\n  var ANDROID_VERSION = function () {\n    // This matches Android Major.Minor.Patch versions\n    // ANDROID_VERSION is Major.Minor as a Number, if Minor isn't available, then only Major is returned\n    var match = USER_AGENT.match(/Android (\\d+)(?:\\.(\\d+))?(?:\\.(\\d+))*/i);\n\n    if (!match) {\n      return null;\n    }\n\n    var major = match[1] && parseFloat(match[1]);\n    var minor = match[2] && parseFloat(match[2]);\n\n    if (major && minor) {\n      return parseFloat(match[1] + '.' + match[2]);\n    } else if (major) {\n      return major;\n    }\n\n    return null;\n  }();\n  /**\n   * Whether or not this is a native Android browser.\n   *\n   * @static\n   * @const\n   * @type {Boolean}\n   */\n\n  var IS_NATIVE_ANDROID = IS_ANDROID && ANDROID_VERSION < 5 && appleWebkitVersion < 537;\n  /**\n   * Whether or not this is Mozilla Firefox.\n   *\n   * @static\n   * @const\n   * @type {Boolean}\n   */\n\n  var IS_FIREFOX = /Firefox/i.test(USER_AGENT);\n  /**\n   * Whether or not this is Microsoft Edge.\n   *\n   * @static\n   * @const\n   * @type {Boolean}\n   */\n\n  var IS_EDGE = /Edg/i.test(USER_AGENT);\n  /**\n   * Whether or not this is Google Chrome.\n   *\n   * This will also be `true` for Chrome on iOS, which will have different support\n   * as it is actually Safari under the hood.\n   *\n   * @static\n   * @const\n   * @type {Boolean}\n   */\n\n  var IS_CHROME = !IS_EDGE && (/Chrome/i.test(USER_AGENT) || /CriOS/i.test(USER_AGENT));\n  /**\n   * The detected Google Chrome version - or `null`.\n   *\n   * @static\n   * @const\n   * @type {number|null}\n   */\n\n  var CHROME_VERSION = function () {\n    var match = USER_AGENT.match(/(Chrome|CriOS)\\/(\\d+)/);\n\n    if (match && match[2]) {\n      return parseFloat(match[2]);\n    }\n\n    return null;\n  }();\n  /**\n   * The detected Internet Explorer version - or `null`.\n   *\n   * @static\n   * @const\n   * @type {number|null}\n   */\n\n  var IE_VERSION = function () {\n    var result = /MSIE\\s(\\d+)\\.\\d/.exec(USER_AGENT);\n    var version = result && parseFloat(result[1]);\n\n    if (!version && /Trident\\/7.0/i.test(USER_AGENT) && /rv:11.0/.test(USER_AGENT)) {\n      // IE 11 has a different user agent string than other IE versions\n      version = 11.0;\n    }\n\n    return version;\n  }();\n  /**\n   * Whether or not this is desktop Safari.\n   *\n   * @static\n   * @const\n   * @type {Boolean}\n   */\n\n  var IS_SAFARI = /Safari/i.test(USER_AGENT) && !IS_CHROME && !IS_ANDROID && !IS_EDGE;\n  /**\n   * Whether or not this is a Windows machine.\n   *\n   * @static\n   * @const\n   * @type {Boolean}\n   */\n\n  var IS_WINDOWS = /Windows/i.test(USER_AGENT);\n  /**\n   * Whether or not this device is touch-enabled.\n   *\n   * @static\n   * @const\n   * @type {Boolean}\n   */\n\n  var TOUCH_ENABLED = Boolean(isReal() && ('ontouchstart' in window || window.navigator.maxTouchPoints || window.DocumentTouch && window.document instanceof window.DocumentTouch));\n  /**\n   * Whether or not this device is an iPad.\n   *\n   * @static\n   * @const\n   * @type {Boolean}\n   */\n\n  var IS_IPAD = /iPad/i.test(USER_AGENT) || IS_SAFARI && TOUCH_ENABLED && !/iPhone/i.test(USER_AGENT);\n  /**\n   * Whether or not this device is an iPhone.\n   *\n   * @static\n   * @const\n   * @type {Boolean}\n   */\n  // The Facebook app's UIWebView identifies as both an iPhone and iPad, so\n  // to identify iPhones, we need to exclude iPads.\n  // http://artsy.github.io/blog/2012/10/18/the-perils-of-ios-user-agent-sniffing/\n\n  var IS_IPHONE = /iPhone/i.test(USER_AGENT) && !IS_IPAD;\n  /**\n   * Whether or not this is an iOS device.\n   *\n   * @static\n   * @const\n   * @type {Boolean}\n   */\n\n  var IS_IOS = IS_IPHONE || IS_IPAD || IS_IPOD;\n  /**\n   * Whether or not this is any flavor of Safari - including iOS.\n   *\n   * @static\n   * @const\n   * @type {Boolean}\n   */\n\n  var IS_ANY_SAFARI = (IS_SAFARI || IS_IOS) && !IS_CHROME;\n\n  var browser = /*#__PURE__*/Object.freeze({\n    __proto__: null,\n    IS_IPOD: IS_IPOD,\n    IOS_VERSION: IOS_VERSION,\n    IS_ANDROID: IS_ANDROID,\n    ANDROID_VERSION: ANDROID_VERSION,\n    IS_NATIVE_ANDROID: IS_NATIVE_ANDROID,\n    IS_FIREFOX: IS_FIREFOX,\n    IS_EDGE: IS_EDGE,\n    IS_CHROME: IS_CHROME,\n    CHROME_VERSION: CHROME_VERSION,\n    IE_VERSION: IE_VERSION,\n    IS_SAFARI: IS_SAFARI,\n    IS_WINDOWS: IS_WINDOWS,\n    TOUCH_ENABLED: TOUCH_ENABLED,\n    IS_IPAD: IS_IPAD,\n    IS_IPHONE: IS_IPHONE,\n    IS_IOS: IS_IOS,\n    IS_ANY_SAFARI: IS_ANY_SAFARI\n  });\n\n  /**\n   * @file dom.js\n   * @module dom\n   */\n  /**\n   * Detect if a value is a string with any non-whitespace characters.\n   *\n   * @private\n   * @param  {string} str\n   *         The string to check\n   *\n   * @return {boolean}\n   *         Will be `true` if the string is non-blank, `false` otherwise.\n   *\n   */\n\n  function isNonBlankString(str) {\n    // we use str.trim as it will trim any whitespace characters\n    // from the front or back of non-whitespace characters. aka\n    // Any string that contains non-whitespace characters will\n    // still contain them after `trim` but whitespace only strings\n    // will have a length of 0, failing this check.\n    return typeof str === 'string' && Boolean(str.trim());\n  }\n  /**\n   * Throws an error if the passed string has whitespace. This is used by\n   * class methods to be relatively consistent with the classList API.\n   *\n   * @private\n   * @param  {string} str\n   *         The string to check for whitespace.\n   *\n   * @throws {Error}\n   *         Throws an error if there is whitespace in the string.\n   */\n\n\n  function throwIfWhitespace(str) {\n    // str.indexOf instead of regex because str.indexOf is faster performance wise.\n    if (str.indexOf(' ') >= 0) {\n      throw new Error('class has illegal whitespace characters');\n    }\n  }\n  /**\n   * Produce a regular expression for matching a className within an elements className.\n   *\n   * @private\n   * @param  {string} className\n   *         The className to generate the RegExp for.\n   *\n   * @return {RegExp}\n   *         The RegExp that will check for a specific `className` in an elements\n   *         className.\n   */\n\n\n  function classRegExp(className) {\n    return new RegExp('(^|\\\\s)' + className + '($|\\\\s)');\n  }\n  /**\n   * Whether the current DOM interface appears to be real (i.e. not simulated).\n   *\n   * @return {boolean}\n   *         Will be `true` if the DOM appears to be real, `false` otherwise.\n   */\n\n\n  function isReal() {\n    // Both document and window will never be undefined thanks to `global`.\n    return document === window.document;\n  }\n  /**\n   * Determines, via duck typing, whether or not a value is a DOM element.\n   *\n   * @param  {Mixed} value\n   *         The value to check.\n   *\n   * @return {boolean}\n   *         Will be `true` if the value is a DOM element, `false` otherwise.\n   */\n\n  function isEl(value) {\n    return isObject$1(value) && value.nodeType === 1;\n  }\n  /**\n   * Determines if the current DOM is embedded in an iframe.\n   *\n   * @return {boolean}\n   *         Will be `true` if the DOM is embedded in an iframe, `false`\n   *         otherwise.\n   */\n\n  function isInFrame() {\n    // We need a try/catch here because Safari will throw errors when attempting\n    // to get either `parent` or `self`\n    try {\n      return window.parent !== window.self;\n    } catch (x) {\n      return true;\n    }\n  }\n  /**\n   * Creates functions to query the DOM using a given method.\n   *\n   * @private\n   * @param   {string} method\n   *          The method to create the query with.\n   *\n   * @return  {Function}\n   *          The query method\n   */\n\n  function createQuerier(method) {\n    return function (selector, context) {\n      if (!isNonBlankString(selector)) {\n        return document[method](null);\n      }\n\n      if (isNonBlankString(context)) {\n        context = document.querySelector(context);\n      }\n\n      var ctx = isEl(context) ? context : document;\n      return ctx[method] && ctx[method](selector);\n    };\n  }\n  /**\n   * Creates an element and applies properties, attributes, and inserts content.\n   *\n   * @param  {string} [tagName='div']\n   *         Name of tag to be created.\n   *\n   * @param  {Object} [properties={}]\n   *         Element properties to be applied.\n   *\n   * @param  {Object} [attributes={}]\n   *         Element attributes to be applied.\n   *\n   * @param {module:dom~ContentDescriptor} content\n   *        A content descriptor object.\n   *\n   * @return {Element}\n   *         The element that was created.\n   */\n\n\n  function createEl(tagName, properties, attributes, content) {\n    if (tagName === void 0) {\n      tagName = 'div';\n    }\n\n    if (properties === void 0) {\n      properties = {};\n    }\n\n    if (attributes === void 0) {\n      attributes = {};\n    }\n\n    var el = document.createElement(tagName);\n    Object.getOwnPropertyNames(properties).forEach(function (propName) {\n      var val = properties[propName]; // See #2176\n      // We originally were accepting both properties and attributes in the\n      // same object, but that doesn't work so well.\n\n      if (propName.indexOf('aria-') !== -1 || propName === 'role' || propName === 'type') {\n        log$1.warn('Setting attributes in the second argument of createEl()\\n' + 'has been deprecated. Use the third argument instead.\\n' + (\"createEl(type, properties, attributes). Attempting to set \" + propName + \" to \" + val + \".\"));\n        el.setAttribute(propName, val); // Handle textContent since it's not supported everywhere and we have a\n        // method for it.\n      } else if (propName === 'textContent') {\n        textContent(el, val);\n      } else if (el[propName] !== val || propName === 'tabIndex') {\n        el[propName] = val;\n      }\n    });\n    Object.getOwnPropertyNames(attributes).forEach(function (attrName) {\n      el.setAttribute(attrName, attributes[attrName]);\n    });\n\n    if (content) {\n      appendContent(el, content);\n    }\n\n    return el;\n  }\n  /**\n   * Injects text into an element, replacing any existing contents entirely.\n   *\n   * @param  {Element} el\n   *         The element to add text content into\n   *\n   * @param  {string} text\n   *         The text content to add.\n   *\n   * @return {Element}\n   *         The element with added text content.\n   */\n\n  function textContent(el, text) {\n    if (typeof el.textContent === 'undefined') {\n      el.innerText = text;\n    } else {\n      el.textContent = text;\n    }\n\n    return el;\n  }\n  /**\n   * Insert an element as the first child node of another\n   *\n   * @param {Element} child\n   *        Element to insert\n   *\n   * @param {Element} parent\n   *        Element to insert child into\n   */\n\n  function prependTo(child, parent) {\n    if (parent.firstChild) {\n      parent.insertBefore(child, parent.firstChild);\n    } else {\n      parent.appendChild(child);\n    }\n  }\n  /**\n   * Check if an element has a class name.\n   *\n   * @param  {Element} element\n   *         Element to check\n   *\n   * @param  {string} classToCheck\n   *         Class name to check for\n   *\n   * @return {boolean}\n   *         Will be `true` if the element has a class, `false` otherwise.\n   *\n   * @throws {Error}\n   *         Throws an error if `classToCheck` has white space.\n   */\n\n  function hasClass(element, classToCheck) {\n    throwIfWhitespace(classToCheck);\n\n    if (element.classList) {\n      return element.classList.contains(classToCheck);\n    }\n\n    return classRegExp(classToCheck).test(element.className);\n  }\n  /**\n   * Add a class name to an element.\n   *\n   * @param  {Element} element\n   *         Element to add class name to.\n   *\n   * @param  {string} classToAdd\n   *         Class name to add.\n   *\n   * @return {Element}\n   *         The DOM element with the added class name.\n   */\n\n  function addClass(element, classToAdd) {\n    if (element.classList) {\n      element.classList.add(classToAdd); // Don't need to `throwIfWhitespace` here because `hasElClass` will do it\n      // in the case of classList not being supported.\n    } else if (!hasClass(element, classToAdd)) {\n      element.className = (element.className + ' ' + classToAdd).trim();\n    }\n\n    return element;\n  }\n  /**\n   * Remove a class name from an element.\n   *\n   * @param  {Element} element\n   *         Element to remove a class name from.\n   *\n   * @param  {string} classToRemove\n   *         Class name to remove\n   *\n   * @return {Element}\n   *         The DOM element with class name removed.\n   */\n\n  function removeClass(element, classToRemove) {\n    // Protect in case the player gets disposed\n    if (!element) {\n      log$1.warn(\"removeClass was called with an element that doesn't exist\");\n      return null;\n    }\n\n    if (element.classList) {\n      element.classList.remove(classToRemove);\n    } else {\n      throwIfWhitespace(classToRemove);\n      element.className = element.className.split(/\\s+/).filter(function (c) {\n        return c !== classToRemove;\n      }).join(' ');\n    }\n\n    return element;\n  }\n  /**\n   * The callback definition for toggleClass.\n   *\n   * @callback module:dom~PredicateCallback\n   * @param    {Element} element\n   *           The DOM element of the Component.\n   *\n   * @param    {string} classToToggle\n   *           The `className` that wants to be toggled\n   *\n   * @return   {boolean|undefined}\n   *           If `true` is returned, the `classToToggle` will be added to the\n   *           `element`. If `false`, the `classToToggle` will be removed from\n   *           the `element`. If `undefined`, the callback will be ignored.\n   */\n\n  /**\n   * Adds or removes a class name to/from an element depending on an optional\n   * condition or the presence/absence of the class name.\n   *\n   * @param  {Element} element\n   *         The element to toggle a class name on.\n   *\n   * @param  {string} classToToggle\n   *         The class that should be toggled.\n   *\n   * @param  {boolean|module:dom~PredicateCallback} [predicate]\n   *         See the return value for {@link module:dom~PredicateCallback}\n   *\n   * @return {Element}\n   *         The element with a class that has been toggled.\n   */\n\n  function toggleClass(element, classToToggle, predicate) {\n    // This CANNOT use `classList` internally because IE11 does not support the\n    // second parameter to the `classList.toggle()` method! Which is fine because\n    // `classList` will be used by the add/remove functions.\n    var has = hasClass(element, classToToggle);\n\n    if (typeof predicate === 'function') {\n      predicate = predicate(element, classToToggle);\n    }\n\n    if (typeof predicate !== 'boolean') {\n      predicate = !has;\n    } // If the necessary class operation matches the current state of the\n    // element, no action is required.\n\n\n    if (predicate === has) {\n      return;\n    }\n\n    if (predicate) {\n      addClass(element, classToToggle);\n    } else {\n      removeClass(element, classToToggle);\n    }\n\n    return element;\n  }\n  /**\n   * Apply attributes to an HTML element.\n   *\n   * @param {Element} el\n   *        Element to add attributes to.\n   *\n   * @param {Object} [attributes]\n   *        Attributes to be applied.\n   */\n\n  function setAttributes(el, attributes) {\n    Object.getOwnPropertyNames(attributes).forEach(function (attrName) {\n      var attrValue = attributes[attrName];\n\n      if (attrValue === null || typeof attrValue === 'undefined' || attrValue === false) {\n        el.removeAttribute(attrName);\n      } else {\n        el.setAttribute(attrName, attrValue === true ? '' : attrValue);\n      }\n    });\n  }\n  /**\n   * Get an element's attribute values, as defined on the HTML tag.\n   *\n   * Attributes are not the same as properties. They're defined on the tag\n   * or with setAttribute.\n   *\n   * @param  {Element} tag\n   *         Element from which to get tag attributes.\n   *\n   * @return {Object}\n   *         All attributes of the element. Boolean attributes will be `true` or\n   *         `false`, others will be strings.\n   */\n\n  function getAttributes(tag) {\n    var obj = {}; // known boolean attributes\n    // we can check for matching boolean properties, but not all browsers\n    // and not all tags know about these attributes, so, we still want to check them manually\n\n    var knownBooleans = ',' + 'autoplay,controls,playsinline,loop,muted,default,defaultMuted' + ',';\n\n    if (tag && tag.attributes && tag.attributes.length > 0) {\n      var attrs = tag.attributes;\n\n      for (var i = attrs.length - 1; i >= 0; i--) {\n        var attrName = attrs[i].name;\n        var attrVal = attrs[i].value; // check for known booleans\n        // the matching element property will return a value for typeof\n\n        if (typeof tag[attrName] === 'boolean' || knownBooleans.indexOf(',' + attrName + ',') !== -1) {\n          // the value of an included boolean attribute is typically an empty\n          // string ('') which would equal false if we just check for a false value.\n          // we also don't want support bad code like autoplay='false'\n          attrVal = attrVal !== null ? true : false;\n        }\n\n        obj[attrName] = attrVal;\n      }\n    }\n\n    return obj;\n  }\n  /**\n   * Get the value of an element's attribute.\n   *\n   * @param {Element} el\n   *        A DOM element.\n   *\n   * @param {string} attribute\n   *        Attribute to get the value of.\n   *\n   * @return {string}\n   *         The value of the attribute.\n   */\n\n  function getAttribute(el, attribute) {\n    return el.getAttribute(attribute);\n  }\n  /**\n   * Set the value of an element's attribute.\n   *\n   * @param {Element} el\n   *        A DOM element.\n   *\n   * @param {string} attribute\n   *        Attribute to set.\n   *\n   * @param {string} value\n   *        Value to set the attribute to.\n   */\n\n  function setAttribute(el, attribute, value) {\n    el.setAttribute(attribute, value);\n  }\n  /**\n   * Remove an element's attribute.\n   *\n   * @param {Element} el\n   *        A DOM element.\n   *\n   * @param {string} attribute\n   *        Attribute to remove.\n   */\n\n  function removeAttribute(el, attribute) {\n    el.removeAttribute(attribute);\n  }\n  /**\n   * Attempt to block the ability to select text.\n   */\n\n  function blockTextSelection() {\n    document.body.focus();\n\n    document.onselectstart = function () {\n      return false;\n    };\n  }\n  /**\n   * Turn off text selection blocking.\n   */\n\n  function unblockTextSelection() {\n    document.onselectstart = function () {\n      return true;\n    };\n  }\n  /**\n   * Identical to the native `getBoundingClientRect` function, but ensures that\n   * the method is supported at all (it is in all browsers we claim to support)\n   * and that the element is in the DOM before continuing.\n   *\n   * This wrapper function also shims properties which are not provided by some\n   * older browsers (namely, IE8).\n   *\n   * Additionally, some browsers do not support adding properties to a\n   * `ClientRect`/`DOMRect` object; so, we shallow-copy it with the standard\n   * properties (except `x` and `y` which are not widely supported). This helps\n   * avoid implementations where keys are non-enumerable.\n   *\n   * @param  {Element} el\n   *         Element whose `ClientRect` we want to calculate.\n   *\n   * @return {Object|undefined}\n   *         Always returns a plain object - or `undefined` if it cannot.\n   */\n\n  function getBoundingClientRect(el) {\n    if (el && el.getBoundingClientRect && el.parentNode) {\n      var rect = el.getBoundingClientRect();\n      var result = {};\n      ['bottom', 'height', 'left', 'right', 'top', 'width'].forEach(function (k) {\n        if (rect[k] !== undefined) {\n          result[k] = rect[k];\n        }\n      });\n\n      if (!result.height) {\n        result.height = parseFloat(computedStyle(el, 'height'));\n      }\n\n      if (!result.width) {\n        result.width = parseFloat(computedStyle(el, 'width'));\n      }\n\n      return result;\n    }\n  }\n  /**\n   * Represents the position of a DOM element on the page.\n   *\n   * @typedef  {Object} module:dom~Position\n   *\n   * @property {number} left\n   *           Pixels to the left.\n   *\n   * @property {number} top\n   *           Pixels from the top.\n   */\n\n  /**\n   * Get the position of an element in the DOM.\n   *\n   * Uses `getBoundingClientRect` technique from John Resig.\n   *\n   * @see http://ejohn.org/blog/getboundingclientrect-is-awesome/\n   *\n   * @param  {Element} el\n   *         Element from which to get offset.\n   *\n   * @return {module:dom~Position}\n   *         The position of the element that was passed in.\n   */\n\n  function findPosition(el) {\n    if (!el || el && !el.offsetParent) {\n      return {\n        left: 0,\n        top: 0,\n        width: 0,\n        height: 0\n      };\n    }\n\n    var width = el.offsetWidth;\n    var height = el.offsetHeight;\n    var left = 0;\n    var top = 0;\n\n    while (el.offsetParent && el !== document[FullscreenApi.fullscreenElement]) {\n      left += el.offsetLeft;\n      top += el.offsetTop;\n      el = el.offsetParent;\n    }\n\n    return {\n      left: left,\n      top: top,\n      width: width,\n      height: height\n    };\n  }\n  /**\n   * Represents x and y coordinates for a DOM element or mouse pointer.\n   *\n   * @typedef  {Object} module:dom~Coordinates\n   *\n   * @property {number} x\n   *           x coordinate in pixels\n   *\n   * @property {number} y\n   *           y coordinate in pixels\n   */\n\n  /**\n   * Get the pointer position within an element.\n   *\n   * The base on the coordinates are the bottom left of the element.\n   *\n   * @param  {Element} el\n   *         Element on which to get the pointer position on.\n   *\n   * @param  {EventTarget~Event} event\n   *         Event object.\n   *\n   * @return {module:dom~Coordinates}\n   *         A coordinates object corresponding to the mouse position.\n   *\n   */\n\n  function getPointerPosition(el, event) {\n    var translated = {\n      x: 0,\n      y: 0\n    };\n\n    if (IS_IOS) {\n      var item = el;\n\n      while (item && item.nodeName.toLowerCase() !== 'html') {\n        var transform = computedStyle(item, 'transform');\n\n        if (/^matrix/.test(transform)) {\n          var values = transform.slice(7, -1).split(/,\\s/).map(Number);\n          translated.x += values[4];\n          translated.y += values[5];\n        } else if (/^matrix3d/.test(transform)) {\n          var _values = transform.slice(9, -1).split(/,\\s/).map(Number);\n\n          translated.x += _values[12];\n          translated.y += _values[13];\n        }\n\n        item = item.parentNode;\n      }\n    }\n\n    var position = {};\n    var boxTarget = findPosition(event.target);\n    var box = findPosition(el);\n    var boxW = box.width;\n    var boxH = box.height;\n    var offsetY = event.offsetY - (box.top - boxTarget.top);\n    var offsetX = event.offsetX - (box.left - boxTarget.left);\n\n    if (event.changedTouches) {\n      offsetX = event.changedTouches[0].pageX - box.left;\n      offsetY = event.changedTouches[0].pageY + box.top;\n\n      if (IS_IOS) {\n        offsetX -= translated.x;\n        offsetY -= translated.y;\n      }\n    }\n\n    position.y = 1 - Math.max(0, Math.min(1, offsetY / boxH));\n    position.x = Math.max(0, Math.min(1, offsetX / boxW));\n    return position;\n  }\n  /**\n   * Determines, via duck typing, whether or not a value is a text node.\n   *\n   * @param  {Mixed} value\n   *         Check if this value is a text node.\n   *\n   * @return {boolean}\n   *         Will be `true` if the value is a text node, `false` otherwise.\n   */\n\n  function isTextNode(value) {\n    return isObject$1(value) && value.nodeType === 3;\n  }\n  /**\n   * Empties the contents of an element.\n   *\n   * @param  {Element} el\n   *         The element to empty children from\n   *\n   * @return {Element}\n   *         The element with no children\n   */\n\n  function emptyEl(el) {\n    while (el.firstChild) {\n      el.removeChild(el.firstChild);\n    }\n\n    return el;\n  }\n  /**\n   * This is a mixed value that describes content to be injected into the DOM\n   * via some method. It can be of the following types:\n   *\n   * Type       | Description\n   * -----------|-------------\n   * `string`   | The value will be normalized into a text node.\n   * `Element`  | The value will be accepted as-is.\n   * `TextNode` | The value will be accepted as-is.\n   * `Array`    | A one-dimensional array of strings, elements, text nodes, or functions. These functions should return a string, element, or text node (any other return value, like an array, will be ignored).\n   * `Function` | A function, which is expected to return a string, element, text node, or array - any of the other possible values described above. This means that a content descriptor could be a function that returns an array of functions, but those second-level functions must return strings, elements, or text nodes.\n   *\n   * @typedef {string|Element|TextNode|Array|Function} module:dom~ContentDescriptor\n   */\n\n  /**\n   * Normalizes content for eventual insertion into the DOM.\n   *\n   * This allows a wide range of content definition methods, but helps protect\n   * from falling into the trap of simply writing to `innerHTML`, which could\n   * be an XSS concern.\n   *\n   * The content for an element can be passed in multiple types and\n   * combinations, whose behavior is as follows:\n   *\n   * @param {module:dom~ContentDescriptor} content\n   *        A content descriptor value.\n   *\n   * @return {Array}\n   *         All of the content that was passed in, normalized to an array of\n   *         elements or text nodes.\n   */\n\n  function normalizeContent(content) {\n    // First, invoke content if it is a function. If it produces an array,\n    // that needs to happen before normalization.\n    if (typeof content === 'function') {\n      content = content();\n    } // Next up, normalize to an array, so one or many items can be normalized,\n    // filtered, and returned.\n\n\n    return (Array.isArray(content) ? content : [content]).map(function (value) {\n      // First, invoke value if it is a function to produce a new value,\n      // which will be subsequently normalized to a Node of some kind.\n      if (typeof value === 'function') {\n        value = value();\n      }\n\n      if (isEl(value) || isTextNode(value)) {\n        return value;\n      }\n\n      if (typeof value === 'string' && /\\S/.test(value)) {\n        return document.createTextNode(value);\n      }\n    }).filter(function (value) {\n      return value;\n    });\n  }\n  /**\n   * Normalizes and appends content to an element.\n   *\n   * @param  {Element} el\n   *         Element to append normalized content to.\n   *\n   * @param {module:dom~ContentDescriptor} content\n   *        A content descriptor value.\n   *\n   * @return {Element}\n   *         The element with appended normalized content.\n   */\n\n  function appendContent(el, content) {\n    normalizeContent(content).forEach(function (node) {\n      return el.appendChild(node);\n    });\n    return el;\n  }\n  /**\n   * Normalizes and inserts content into an element; this is identical to\n   * `appendContent()`, except it empties the element first.\n   *\n   * @param {Element} el\n   *        Element to insert normalized content into.\n   *\n   * @param {module:dom~ContentDescriptor} content\n   *        A content descriptor value.\n   *\n   * @return {Element}\n   *         The element with inserted normalized content.\n   */\n\n  function insertContent(el, content) {\n    return appendContent(emptyEl(el), content);\n  }\n  /**\n   * Check if an event was a single left click.\n   *\n   * @param  {EventTarget~Event} event\n   *         Event object.\n   *\n   * @return {boolean}\n   *         Will be `true` if a single left click, `false` otherwise.\n   */\n\n  function isSingleLeftClick(event) {\n    // Note: if you create something draggable, be sure to\n    // call it on both `mousedown` and `mousemove` event,\n    // otherwise `mousedown` should be enough for a button\n    if (event.button === undefined && event.buttons === undefined) {\n      // Why do we need `buttons` ?\n      // Because, middle mouse sometimes have this:\n      // e.button === 0 and e.buttons === 4\n      // Furthermore, we want to prevent combination click, something like\n      // HOLD middlemouse then left click, that would be\n      // e.button === 0, e.buttons === 5\n      // just `button` is not gonna work\n      // Alright, then what this block does ?\n      // this is for chrome `simulate mobile devices`\n      // I want to support this as well\n      return true;\n    }\n\n    if (event.button === 0 && event.buttons === undefined) {\n      // Touch screen, sometimes on some specific device, `buttons`\n      // doesn't have anything (safari on ios, blackberry...)\n      return true;\n    } // `mouseup` event on a single left click has\n    // `button` and `buttons` equal to 0\n\n\n    if (event.type === 'mouseup' && event.button === 0 && event.buttons === 0) {\n      return true;\n    }\n\n    if (event.button !== 0 || event.buttons !== 1) {\n      // This is the reason we have those if else block above\n      // if any special case we can catch and let it slide\n      // we do it above, when get to here, this definitely\n      // is-not-left-click\n      return false;\n    }\n\n    return true;\n  }\n  /**\n   * Finds a single DOM element matching `selector` within the optional\n   * `context` of another DOM element (defaulting to `document`).\n   *\n   * @param  {string} selector\n   *         A valid CSS selector, which will be passed to `querySelector`.\n   *\n   * @param  {Element|String} [context=document]\n   *         A DOM element within which to query. Can also be a selector\n   *         string in which case the first matching element will be used\n   *         as context. If missing (or no element matches selector), falls\n   *         back to `document`.\n   *\n   * @return {Element|null}\n   *         The element that was found or null.\n   */\n\n  var $ = createQuerier('querySelector');\n  /**\n   * Finds a all DOM elements matching `selector` within the optional\n   * `context` of another DOM element (defaulting to `document`).\n   *\n   * @param  {string} selector\n   *         A valid CSS selector, which will be passed to `querySelectorAll`.\n   *\n   * @param  {Element|String} [context=document]\n   *         A DOM element within which to query. Can also be a selector\n   *         string in which case the first matching element will be used\n   *         as context. If missing (or no element matches selector), falls\n   *         back to `document`.\n   *\n   * @return {NodeList}\n   *         A element list of elements that were found. Will be empty if none\n   *         were found.\n   *\n   */\n\n  var $$ = createQuerier('querySelectorAll');\n\n  var Dom = /*#__PURE__*/Object.freeze({\n    __proto__: null,\n    isReal: isReal,\n    isEl: isEl,\n    isInFrame: isInFrame,\n    createEl: createEl,\n    textContent: textContent,\n    prependTo: prependTo,\n    hasClass: hasClass,\n    addClass: addClass,\n    removeClass: removeClass,\n    toggleClass: toggleClass,\n    setAttributes: setAttributes,\n    getAttributes: getAttributes,\n    getAttribute: getAttribute,\n    setAttribute: setAttribute,\n    removeAttribute: removeAttribute,\n    blockTextSelection: blockTextSelection,\n    unblockTextSelection: unblockTextSelection,\n    getBoundingClientRect: getBoundingClientRect,\n    findPosition: findPosition,\n    getPointerPosition: getPointerPosition,\n    isTextNode: isTextNode,\n    emptyEl: emptyEl,\n    normalizeContent: normalizeContent,\n    appendContent: appendContent,\n    insertContent: insertContent,\n    isSingleLeftClick: isSingleLeftClick,\n    $: $,\n    $$: $$\n  });\n\n  /**\n   * @file setup.js - Functions for setting up a player without\n   * user interaction based on the data-setup `attribute` of the video tag.\n   *\n   * @module setup\n   */\n  var _windowLoaded = false;\n  var videojs$1;\n  /**\n   * Set up any tags that have a data-setup `attribute` when the player is started.\n   */\n\n  var autoSetup = function autoSetup() {\n    if (videojs$1.options.autoSetup === false) {\n      return;\n    }\n\n    var vids = Array.prototype.slice.call(document.getElementsByTagName('video'));\n    var audios = Array.prototype.slice.call(document.getElementsByTagName('audio'));\n    var divs = Array.prototype.slice.call(document.getElementsByTagName('video-js'));\n    var mediaEls = vids.concat(audios, divs); // Check if any media elements exist\n\n    if (mediaEls && mediaEls.length > 0) {\n      for (var i = 0, e = mediaEls.length; i < e; i++) {\n        var mediaEl = mediaEls[i]; // Check if element exists, has getAttribute func.\n\n        if (mediaEl && mediaEl.getAttribute) {\n          // Make sure this player hasn't already been set up.\n          if (mediaEl.player === undefined) {\n            var options = mediaEl.getAttribute('data-setup'); // Check if data-setup attr exists.\n            // We only auto-setup if they've added the data-setup attr.\n\n            if (options !== null) {\n              // Create new video.js instance.\n              videojs$1(mediaEl);\n            }\n          } // If getAttribute isn't defined, we need to wait for the DOM.\n\n        } else {\n          autoSetupTimeout(1);\n          break;\n        }\n      } // No videos were found, so keep looping unless page is finished loading.\n\n    } else if (!_windowLoaded) {\n      autoSetupTimeout(1);\n    }\n  };\n  /**\n   * Wait until the page is loaded before running autoSetup. This will be called in\n   * autoSetup if `hasLoaded` returns false.\n   *\n   * @param {number} wait\n   *        How long to wait in ms\n   *\n   * @param {module:videojs} [vjs]\n   *        The videojs library function\n   */\n\n\n  function autoSetupTimeout(wait, vjs) {\n    // Protect against breakage in non-browser environments\n    if (!isReal()) {\n      return;\n    }\n\n    if (vjs) {\n      videojs$1 = vjs;\n    }\n\n    window.setTimeout(autoSetup, wait);\n  }\n  /**\n   * Used to set the internal tracking of window loaded state to true.\n   *\n   * @private\n   */\n\n\n  function setWindowLoaded() {\n    _windowLoaded = true;\n    window.removeEventListener('load', setWindowLoaded);\n  }\n\n  if (isReal()) {\n    if (document.readyState === 'complete') {\n      setWindowLoaded();\n    } else {\n      /**\n       * Listen for the load event on window, and set _windowLoaded to true.\n       *\n       * We use a standard event listener here to avoid incrementing the GUID\n       * before any players are created.\n       *\n       * @listens load\n       */\n      window.addEventListener('load', setWindowLoaded);\n    }\n  }\n\n  /**\n   * @file stylesheet.js\n   * @module stylesheet\n   */\n\n  /**\n   * Create a DOM syle element given a className for it.\n   *\n   * @param {string} className\n   *        The className to add to the created style element.\n   *\n   * @return {Element}\n   *         The element that was created.\n   */\n  var createStyleElement = function createStyleElement(className) {\n    var style = document.createElement('style');\n    style.className = className;\n    return style;\n  };\n  /**\n   * Add text to a DOM element.\n   *\n   * @param {Element} el\n   *        The Element to add text content to.\n   *\n   * @param {string} content\n   *        The text to add to the element.\n   */\n\n  var setTextContent = function setTextContent(el, content) {\n    if (el.styleSheet) {\n      el.styleSheet.cssText = content;\n    } else {\n      el.textContent = content;\n    }\n  };\n\n  /**\n   * @file guid.js\n   * @module guid\n   */\n  // Default value for GUIDs. This allows us to reset the GUID counter in tests.\n  //\n  // The initial GUID is 3 because some users have come to rely on the first\n  // default player ID ending up as `vjs_video_3`.\n  //\n  // See: https://github.com/videojs/video.js/pull/6216\n  var _initialGuid = 3;\n  /**\n   * Unique ID for an element or function\n   *\n   * @type {Number}\n   */\n\n  var _guid = _initialGuid;\n  /**\n   * Get a unique auto-incrementing ID by number that has not been returned before.\n   *\n   * @return {number}\n   *         A new unique ID.\n   */\n\n  function newGUID() {\n    return _guid++;\n  }\n\n  /**\n   * @file dom-data.js\n   * @module dom-data\n   */\n  var FakeWeakMap;\n\n  if (!window.WeakMap) {\n    FakeWeakMap = /*#__PURE__*/function () {\n      function FakeWeakMap() {\n        this.vdata = 'vdata' + Math.floor(window.performance && window.performance.now() || Date.now());\n        this.data = {};\n      }\n\n      var _proto = FakeWeakMap.prototype;\n\n      _proto.set = function set(key, value) {\n        var access = key[this.vdata] || newGUID();\n\n        if (!key[this.vdata]) {\n          key[this.vdata] = access;\n        }\n\n        this.data[access] = value;\n        return this;\n      };\n\n      _proto.get = function get(key) {\n        var access = key[this.vdata]; // we have data, return it\n\n        if (access) {\n          return this.data[access];\n        } // we don't have data, return nothing.\n        // return undefined explicitly as that's the contract for this method\n\n\n        log$1('We have no data for this element', key);\n        return undefined;\n      };\n\n      _proto.has = function has(key) {\n        var access = key[this.vdata];\n        return access in this.data;\n      };\n\n      _proto[\"delete\"] = function _delete(key) {\n        var access = key[this.vdata];\n\n        if (access) {\n          delete this.data[access];\n          delete key[this.vdata];\n        }\n      };\n\n      return FakeWeakMap;\n    }();\n  }\n  /**\n   * Element Data Store.\n   *\n   * Allows for binding data to an element without putting it directly on the\n   * element. Ex. Event listeners are stored here.\n   * (also from jsninja.com, slightly modified and updated for closure compiler)\n   *\n   * @type {Object}\n   * @private\n   */\n\n\n  var DomData = window.WeakMap ? new WeakMap() : new FakeWeakMap();\n\n  /**\n   * @file events.js. An Event System (John Resig - Secrets of a JS Ninja http://jsninja.com/)\n   * (Original book version wasn't completely usable, so fixed some things and made Closure Compiler compatible)\n   * This should work very similarly to jQuery's events, however it's based off the book version which isn't as\n   * robust as jquery's, so there's probably some differences.\n   *\n   * @file events.js\n   * @module events\n   */\n  /**\n   * Clean up the listener cache and dispatchers\n   *\n   * @param {Element|Object} elem\n   *        Element to clean up\n   *\n   * @param {string} type\n   *        Type of event to clean up\n   */\n\n  function _cleanUpEvents(elem, type) {\n    if (!DomData.has(elem)) {\n      return;\n    }\n\n    var data = DomData.get(elem); // Remove the events of a particular type if there are none left\n\n    if (data.handlers[type].length === 0) {\n      delete data.handlers[type]; // data.handlers[type] = null;\n      // Setting to null was causing an error with data.handlers\n      // Remove the meta-handler from the element\n\n      if (elem.removeEventListener) {\n        elem.removeEventListener(type, data.dispatcher, false);\n      } else if (elem.detachEvent) {\n        elem.detachEvent('on' + type, data.dispatcher);\n      }\n    } // Remove the events object if there are no types left\n\n\n    if (Object.getOwnPropertyNames(data.handlers).length <= 0) {\n      delete data.handlers;\n      delete data.dispatcher;\n      delete data.disabled;\n    } // Finally remove the element data if there is no data left\n\n\n    if (Object.getOwnPropertyNames(data).length === 0) {\n      DomData[\"delete\"](elem);\n    }\n  }\n  /**\n   * Loops through an array of event types and calls the requested method for each type.\n   *\n   * @param {Function} fn\n   *        The event method we want to use.\n   *\n   * @param {Element|Object} elem\n   *        Element or object to bind listeners to\n   *\n   * @param {string} type\n   *        Type of event to bind to.\n   *\n   * @param {EventTarget~EventListener} callback\n   *        Event listener.\n   */\n\n\n  function _handleMultipleEvents(fn, elem, types, callback) {\n    types.forEach(function (type) {\n      // Call the event method for each one of the types\n      fn(elem, type, callback);\n    });\n  }\n  /**\n   * Fix a native event to have standard property values\n   *\n   * @param {Object} event\n   *        Event object to fix.\n   *\n   * @return {Object}\n   *         Fixed event object.\n   */\n\n\n  function fixEvent(event) {\n    if (event.fixed_) {\n      return event;\n    }\n\n    function returnTrue() {\n      return true;\n    }\n\n    function returnFalse() {\n      return false;\n    } // Test if fixing up is needed\n    // Used to check if !event.stopPropagation instead of isPropagationStopped\n    // But native events return true for stopPropagation, but don't have\n    // other expected methods like isPropagationStopped. Seems to be a problem\n    // with the Javascript Ninja code. So we're just overriding all events now.\n\n\n    if (!event || !event.isPropagationStopped || !event.isImmediatePropagationStopped) {\n      var old = event || window.event;\n      event = {}; // Clone the old object so that we can modify the values event = {};\n      // IE8 Doesn't like when you mess with native event properties\n      // Firefox returns false for event.hasOwnProperty('type') and other props\n      //  which makes copying more difficult.\n      // TODO: Probably best to create a whitelist of event props\n\n      for (var key in old) {\n        // Safari 6.0.3 warns you if you try to copy deprecated layerX/Y\n        // Chrome warns you if you try to copy deprecated keyboardEvent.keyLocation\n        // and webkitMovementX/Y\n        // Lighthouse complains if Event.path is copied\n        if (key !== 'layerX' && key !== 'layerY' && key !== 'keyLocation' && key !== 'webkitMovementX' && key !== 'webkitMovementY' && key !== 'path') {\n          // Chrome 32+ warns if you try to copy deprecated returnValue, but\n          // we still want to if preventDefault isn't supported (IE8).\n          if (!(key === 'returnValue' && old.preventDefault)) {\n            event[key] = old[key];\n          }\n        }\n      } // The event occurred on this element\n\n\n      if (!event.target) {\n        event.target = event.srcElement || document;\n      } // Handle which other element the event is related to\n\n\n      if (!event.relatedTarget) {\n        event.relatedTarget = event.fromElement === event.target ? event.toElement : event.fromElement;\n      } // Stop the default browser action\n\n\n      event.preventDefault = function () {\n        if (old.preventDefault) {\n          old.preventDefault();\n        }\n\n        event.returnValue = false;\n        old.returnValue = false;\n        event.defaultPrevented = true;\n      };\n\n      event.defaultPrevented = false; // Stop the event from bubbling\n\n      event.stopPropagation = function () {\n        if (old.stopPropagation) {\n          old.stopPropagation();\n        }\n\n        event.cancelBubble = true;\n        old.cancelBubble = true;\n        event.isPropagationStopped = returnTrue;\n      };\n\n      event.isPropagationStopped = returnFalse; // Stop the event from bubbling and executing other handlers\n\n      event.stopImmediatePropagation = function () {\n        if (old.stopImmediatePropagation) {\n          old.stopImmediatePropagation();\n        }\n\n        event.isImmediatePropagationStopped = returnTrue;\n        event.stopPropagation();\n      };\n\n      event.isImmediatePropagationStopped = returnFalse; // Handle mouse position\n\n      if (event.clientX !== null && event.clientX !== undefined) {\n        var doc = document.documentElement;\n        var body = document.body;\n        event.pageX = event.clientX + (doc && doc.scrollLeft || body && body.scrollLeft || 0) - (doc && doc.clientLeft || body && body.clientLeft || 0);\n        event.pageY = event.clientY + (doc && doc.scrollTop || body && body.scrollTop || 0) - (doc && doc.clientTop || body && body.clientTop || 0);\n      } // Handle key presses\n\n\n      event.which = event.charCode || event.keyCode; // Fix button for mouse clicks:\n      // 0 == left; 1 == middle; 2 == right\n\n      if (event.button !== null && event.button !== undefined) {\n        // The following is disabled because it does not pass videojs-standard\n        // and... yikes.\n\n        /* eslint-disable */\n        event.button = event.button & 1 ? 0 : event.button & 4 ? 1 : event.button & 2 ? 2 : 0;\n        /* eslint-enable */\n      }\n    }\n\n    event.fixed_ = true; // Returns fixed-up instance\n\n    return event;\n  }\n  /**\n   * Whether passive event listeners are supported\n   */\n\n  var _supportsPassive;\n\n  var supportsPassive = function supportsPassive() {\n    if (typeof _supportsPassive !== 'boolean') {\n      _supportsPassive = false;\n\n      try {\n        var opts = Object.defineProperty({}, 'passive', {\n          get: function get() {\n            _supportsPassive = true;\n          }\n        });\n        window.addEventListener('test', null, opts);\n        window.removeEventListener('test', null, opts);\n      } catch (e) {// disregard\n      }\n    }\n\n    return _supportsPassive;\n  };\n  /**\n   * Touch events Chrome expects to be passive\n   */\n\n\n  var passiveEvents = ['touchstart', 'touchmove'];\n  /**\n   * Add an event listener to element\n   * It stores the handler function in a separate cache object\n   * and adds a generic handler to the element's event,\n   * along with a unique id (guid) to the element.\n   *\n   * @param {Element|Object} elem\n   *        Element or object to bind listeners to\n   *\n   * @param {string|string[]} type\n   *        Type of event to bind to.\n   *\n   * @param {EventTarget~EventListener} fn\n   *        Event listener.\n   */\n\n  function on(elem, type, fn) {\n    if (Array.isArray(type)) {\n      return _handleMultipleEvents(on, elem, type, fn);\n    }\n\n    if (!DomData.has(elem)) {\n      DomData.set(elem, {});\n    }\n\n    var data = DomData.get(elem); // We need a place to store all our handler data\n\n    if (!data.handlers) {\n      data.handlers = {};\n    }\n\n    if (!data.handlers[type]) {\n      data.handlers[type] = [];\n    }\n\n    if (!fn.guid) {\n      fn.guid = newGUID();\n    }\n\n    data.handlers[type].push(fn);\n\n    if (!data.dispatcher) {\n      data.disabled = false;\n\n      data.dispatcher = function (event, hash) {\n        if (data.disabled) {\n          return;\n        }\n\n        event = fixEvent(event);\n        var handlers = data.handlers[event.type];\n\n        if (handlers) {\n          // Copy handlers so if handlers are added/removed during the process it doesn't throw everything off.\n          var handlersCopy = handlers.slice(0);\n\n          for (var m = 0, n = handlersCopy.length; m < n; m++) {\n            if (event.isImmediatePropagationStopped()) {\n              break;\n            } else {\n              try {\n                handlersCopy[m].call(elem, event, hash);\n              } catch (e) {\n                log$1.error(e);\n              }\n            }\n          }\n        }\n      };\n    }\n\n    if (data.handlers[type].length === 1) {\n      if (elem.addEventListener) {\n        var options = false;\n\n        if (supportsPassive() && passiveEvents.indexOf(type) > -1) {\n          options = {\n            passive: true\n          };\n        }\n\n        elem.addEventListener(type, data.dispatcher, options);\n      } else if (elem.attachEvent) {\n        elem.attachEvent('on' + type, data.dispatcher);\n      }\n    }\n  }\n  /**\n   * Removes event listeners from an element\n   *\n   * @param {Element|Object} elem\n   *        Object to remove listeners from.\n   *\n   * @param {string|string[]} [type]\n   *        Type of listener to remove. Don't include to remove all events from element.\n   *\n   * @param {EventTarget~EventListener} [fn]\n   *        Specific listener to remove. Don't include to remove listeners for an event\n   *        type.\n   */\n\n  function off(elem, type, fn) {\n    // Don't want to add a cache object through getElData if not needed\n    if (!DomData.has(elem)) {\n      return;\n    }\n\n    var data = DomData.get(elem); // If no events exist, nothing to unbind\n\n    if (!data.handlers) {\n      return;\n    }\n\n    if (Array.isArray(type)) {\n      return _handleMultipleEvents(off, elem, type, fn);\n    } // Utility function\n\n\n    var removeType = function removeType(el, t) {\n      data.handlers[t] = [];\n\n      _cleanUpEvents(el, t);\n    }; // Are we removing all bound events?\n\n\n    if (type === undefined) {\n      for (var t in data.handlers) {\n        if (Object.prototype.hasOwnProperty.call(data.handlers || {}, t)) {\n          removeType(elem, t);\n        }\n      }\n\n      return;\n    }\n\n    var handlers = data.handlers[type]; // If no handlers exist, nothing to unbind\n\n    if (!handlers) {\n      return;\n    } // If no listener was provided, remove all listeners for type\n\n\n    if (!fn) {\n      removeType(elem, type);\n      return;\n    } // We're only removing a single handler\n\n\n    if (fn.guid) {\n      for (var n = 0; n < handlers.length; n++) {\n        if (handlers[n].guid === fn.guid) {\n          handlers.splice(n--, 1);\n        }\n      }\n    }\n\n    _cleanUpEvents(elem, type);\n  }\n  /**\n   * Trigger an event for an element\n   *\n   * @param {Element|Object} elem\n   *        Element to trigger an event on\n   *\n   * @param {EventTarget~Event|string} event\n   *        A string (the type) or an event object with a type attribute\n   *\n   * @param {Object} [hash]\n   *        data hash to pass along with the event\n   *\n   * @return {boolean|undefined}\n   *         Returns the opposite of `defaultPrevented` if default was\n   *         prevented. Otherwise, returns `undefined`\n   */\n\n  function trigger(elem, event, hash) {\n    // Fetches element data and a reference to the parent (for bubbling).\n    // Don't want to add a data object to cache for every parent,\n    // so checking hasElData first.\n    var elemData = DomData.has(elem) ? DomData.get(elem) : {};\n    var parent = elem.parentNode || elem.ownerDocument; // type = event.type || event,\n    // handler;\n    // If an event name was passed as a string, creates an event out of it\n\n    if (typeof event === 'string') {\n      event = {\n        type: event,\n        target: elem\n      };\n    } else if (!event.target) {\n      event.target = elem;\n    } // Normalizes the event properties.\n\n\n    event = fixEvent(event); // If the passed element has a dispatcher, executes the established handlers.\n\n    if (elemData.dispatcher) {\n      elemData.dispatcher.call(elem, event, hash);\n    } // Unless explicitly stopped or the event does not bubble (e.g. media events)\n    // recursively calls this function to bubble the event up the DOM.\n\n\n    if (parent && !event.isPropagationStopped() && event.bubbles === true) {\n      trigger.call(null, parent, event, hash); // If at the top of the DOM, triggers the default action unless disabled.\n    } else if (!parent && !event.defaultPrevented && event.target && event.target[event.type]) {\n      if (!DomData.has(event.target)) {\n        DomData.set(event.target, {});\n      }\n\n      var targetData = DomData.get(event.target); // Checks if the target has a default action for this event.\n\n      if (event.target[event.type]) {\n        // Temporarily disables event dispatching on the target as we have already executed the handler.\n        targetData.disabled = true; // Executes the default action.\n\n        if (typeof event.target[event.type] === 'function') {\n          event.target[event.type]();\n        } // Re-enables event dispatching.\n\n\n        targetData.disabled = false;\n      }\n    } // Inform the triggerer if the default was prevented by returning false\n\n\n    return !event.defaultPrevented;\n  }\n  /**\n   * Trigger a listener only once for an event.\n   *\n   * @param {Element|Object} elem\n   *        Element or object to bind to.\n   *\n   * @param {string|string[]} type\n   *        Name/type of event\n   *\n   * @param {Event~EventListener} fn\n   *        Event listener function\n   */\n\n  function one(elem, type, fn) {\n    if (Array.isArray(type)) {\n      return _handleMultipleEvents(one, elem, type, fn);\n    }\n\n    var func = function func() {\n      off(elem, type, func);\n      fn.apply(this, arguments);\n    }; // copy the guid to the new function so it can removed using the original function's ID\n\n\n    func.guid = fn.guid = fn.guid || newGUID();\n    on(elem, type, func);\n  }\n  /**\n   * Trigger a listener only once and then turn if off for all\n   * configured events\n   *\n   * @param {Element|Object} elem\n   *        Element or object to bind to.\n   *\n   * @param {string|string[]} type\n   *        Name/type of event\n   *\n   * @param {Event~EventListener} fn\n   *        Event listener function\n   */\n\n  function any(elem, type, fn) {\n    var func = function func() {\n      off(elem, type, func);\n      fn.apply(this, arguments);\n    }; // copy the guid to the new function so it can removed using the original function's ID\n\n\n    func.guid = fn.guid = fn.guid || newGUID(); // multiple ons, but one off for everything\n\n    on(elem, type, func);\n  }\n\n  var Events = /*#__PURE__*/Object.freeze({\n    __proto__: null,\n    fixEvent: fixEvent,\n    on: on,\n    off: off,\n    trigger: trigger,\n    one: one,\n    any: any\n  });\n\n  /**\n   * @file fn.js\n   * @module fn\n   */\n  var UPDATE_REFRESH_INTERVAL = 30;\n  /**\n   * Bind (a.k.a proxy or context). A simple method for changing the context of\n   * a function.\n   *\n   * It also stores a unique id on the function so it can be easily removed from\n   * events.\n   *\n   * @function\n   * @param    {Mixed} context\n   *           The object to bind as scope.\n   *\n   * @param    {Function} fn\n   *           The function to be bound to a scope.\n   *\n   * @param    {number} [uid]\n   *           An optional unique ID for the function to be set\n   *\n   * @return   {Function}\n   *           The new function that will be bound into the context given\n   */\n\n  var bind = function bind(context, fn, uid) {\n    // Make sure the function has a unique ID\n    if (!fn.guid) {\n      fn.guid = newGUID();\n    } // Create the new function that changes the context\n\n\n    var bound = fn.bind(context); // Allow for the ability to individualize this function\n    // Needed in the case where multiple objects might share the same prototype\n    // IF both items add an event listener with the same function, then you try to remove just one\n    // it will remove both because they both have the same guid.\n    // when using this, you need to use the bind method when you remove the listener as well.\n    // currently used in text tracks\n\n    bound.guid = uid ? uid + '_' + fn.guid : fn.guid;\n    return bound;\n  };\n  /**\n   * Wraps the given function, `fn`, with a new function that only invokes `fn`\n   * at most once per every `wait` milliseconds.\n   *\n   * @function\n   * @param    {Function} fn\n   *           The function to be throttled.\n   *\n   * @param    {number}   wait\n   *           The number of milliseconds by which to throttle.\n   *\n   * @return   {Function}\n   */\n\n  var throttle = function throttle(fn, wait) {\n    var last = window.performance.now();\n\n    var throttled = function throttled() {\n      var now = window.performance.now();\n\n      if (now - last >= wait) {\n        fn.apply(void 0, arguments);\n        last = now;\n      }\n    };\n\n    return throttled;\n  };\n  /**\n   * Creates a debounced function that delays invoking `func` until after `wait`\n   * milliseconds have elapsed since the last time the debounced function was\n   * invoked.\n   *\n   * Inspired by lodash and underscore implementations.\n   *\n   * @function\n   * @param    {Function} func\n   *           The function to wrap with debounce behavior.\n   *\n   * @param    {number} wait\n   *           The number of milliseconds to wait after the last invocation.\n   *\n   * @param    {boolean} [immediate]\n   *           Whether or not to invoke the function immediately upon creation.\n   *\n   * @param    {Object} [context=window]\n   *           The \"context\" in which the debounced function should debounce. For\n   *           example, if this function should be tied to a Video.js player,\n   *           the player can be passed here. Alternatively, defaults to the\n   *           global `window` object.\n   *\n   * @return   {Function}\n   *           A debounced function.\n   */\n\n  var debounce = function debounce(func, wait, immediate, context) {\n    if (context === void 0) {\n      context = window;\n    }\n\n    var timeout;\n\n    var cancel = function cancel() {\n      context.clearTimeout(timeout);\n      timeout = null;\n    };\n    /* eslint-disable consistent-this */\n\n\n    var debounced = function debounced() {\n      var self = this;\n      var args = arguments;\n\n      var _later = function later() {\n        timeout = null;\n        _later = null;\n\n        if (!immediate) {\n          func.apply(self, args);\n        }\n      };\n\n      if (!timeout && immediate) {\n        func.apply(self, args);\n      }\n\n      context.clearTimeout(timeout);\n      timeout = context.setTimeout(_later, wait);\n    };\n    /* eslint-enable consistent-this */\n\n\n    debounced.cancel = cancel;\n    return debounced;\n  };\n\n  /**\n   * @file src/js/event-target.js\n   */\n  /**\n   * `EventTarget` is a class that can have the same API as the DOM `EventTarget`. It\n   * adds shorthand functions that wrap around lengthy functions. For example:\n   * the `on` function is a wrapper around `addEventListener`.\n   *\n   * @see [EventTarget Spec]{@link https://www.w3.org/TR/DOM-Level-2-Events/events.html#Events-EventTarget}\n   * @class EventTarget\n   */\n\n  var EventTarget$2 = function EventTarget() {};\n  /**\n   * A Custom DOM event.\n   *\n   * @typedef {Object} EventTarget~Event\n   * @see [Properties]{@link https://developer.mozilla.org/en-US/docs/Web/API/CustomEvent}\n   */\n\n  /**\n   * All event listeners should follow the following format.\n   *\n   * @callback EventTarget~EventListener\n   * @this {EventTarget}\n   *\n   * @param {EventTarget~Event} event\n   *        the event that triggered this function\n   *\n   * @param {Object} [hash]\n   *        hash of data sent during the event\n   */\n\n  /**\n   * An object containing event names as keys and booleans as values.\n   *\n   * > NOTE: If an event name is set to a true value here {@link EventTarget#trigger}\n   *         will have extra functionality. See that function for more information.\n   *\n   * @property EventTarget.prototype.allowedEvents_\n   * @private\n   */\n\n\n  EventTarget$2.prototype.allowedEvents_ = {};\n  /**\n   * Adds an `event listener` to an instance of an `EventTarget`. An `event listener` is a\n   * function that will get called when an event with a certain name gets triggered.\n   *\n   * @param {string|string[]} type\n   *        An event name or an array of event names.\n   *\n   * @param {EventTarget~EventListener} fn\n   *        The function to call with `EventTarget`s\n   */\n\n  EventTarget$2.prototype.on = function (type, fn) {\n    // Remove the addEventListener alias before calling Events.on\n    // so we don't get into an infinite type loop\n    var ael = this.addEventListener;\n\n    this.addEventListener = function () {};\n\n    on(this, type, fn);\n    this.addEventListener = ael;\n  };\n  /**\n   * An alias of {@link EventTarget#on}. Allows `EventTarget` to mimic\n   * the standard DOM API.\n   *\n   * @function\n   * @see {@link EventTarget#on}\n   */\n\n\n  EventTarget$2.prototype.addEventListener = EventTarget$2.prototype.on;\n  /**\n   * Removes an `event listener` for a specific event from an instance of `EventTarget`.\n   * This makes it so that the `event listener` will no longer get called when the\n   * named event happens.\n   *\n   * @param {string|string[]} type\n   *        An event name or an array of event names.\n   *\n   * @param {EventTarget~EventListener} fn\n   *        The function to remove.\n   */\n\n  EventTarget$2.prototype.off = function (type, fn) {\n    off(this, type, fn);\n  };\n  /**\n   * An alias of {@link EventTarget#off}. Allows `EventTarget` to mimic\n   * the standard DOM API.\n   *\n   * @function\n   * @see {@link EventTarget#off}\n   */\n\n\n  EventTarget$2.prototype.removeEventListener = EventTarget$2.prototype.off;\n  /**\n   * This function will add an `event listener` that gets triggered only once. After the\n   * first trigger it will get removed. This is like adding an `event listener`\n   * with {@link EventTarget#on} that calls {@link EventTarget#off} on itself.\n   *\n   * @param {string|string[]} type\n   *        An event name or an array of event names.\n   *\n   * @param {EventTarget~EventListener} fn\n   *        The function to be called once for each event name.\n   */\n\n  EventTarget$2.prototype.one = function (type, fn) {\n    // Remove the addEventListener aliasing Events.on\n    // so we don't get into an infinite type loop\n    var ael = this.addEventListener;\n\n    this.addEventListener = function () {};\n\n    one(this, type, fn);\n    this.addEventListener = ael;\n  };\n\n  EventTarget$2.prototype.any = function (type, fn) {\n    // Remove the addEventListener aliasing Events.on\n    // so we don't get into an infinite type loop\n    var ael = this.addEventListener;\n\n    this.addEventListener = function () {};\n\n    any(this, type, fn);\n    this.addEventListener = ael;\n  };\n  /**\n   * This function causes an event to happen. This will then cause any `event listeners`\n   * that are waiting for that event, to get called. If there are no `event listeners`\n   * for an event then nothing will happen.\n   *\n   * If the name of the `Event` that is being triggered is in `EventTarget.allowedEvents_`.\n   * Trigger will also call the `on` + `uppercaseEventName` function.\n   *\n   * Example:\n   * 'click' is in `EventTarget.allowedEvents_`, so, trigger will attempt to call\n   * `onClick` if it exists.\n   *\n   * @param {string|EventTarget~Event|Object} event\n   *        The name of the event, an `Event`, or an object with a key of type set to\n   *        an event name.\n   */\n\n\n  EventTarget$2.prototype.trigger = function (event) {\n    var type = event.type || event; // deprecation\n    // In a future version we should default target to `this`\n    // similar to how we default the target to `elem` in\n    // `Events.trigger`. Right now the default `target` will be\n    // `document` due to the `Event.fixEvent` call.\n\n    if (typeof event === 'string') {\n      event = {\n        type: type\n      };\n    }\n\n    event = fixEvent(event);\n\n    if (this.allowedEvents_[type] && this['on' + type]) {\n      this['on' + type](event);\n    }\n\n    trigger(this, event);\n  };\n  /**\n   * An alias of {@link EventTarget#trigger}. Allows `EventTarget` to mimic\n   * the standard DOM API.\n   *\n   * @function\n   * @see {@link EventTarget#trigger}\n   */\n\n\n  EventTarget$2.prototype.dispatchEvent = EventTarget$2.prototype.trigger;\n  var EVENT_MAP;\n\n  EventTarget$2.prototype.queueTrigger = function (event) {\n    var _this = this;\n\n    // only set up EVENT_MAP if it'll be used\n    if (!EVENT_MAP) {\n      EVENT_MAP = new Map();\n    }\n\n    var type = event.type || event;\n    var map = EVENT_MAP.get(this);\n\n    if (!map) {\n      map = new Map();\n      EVENT_MAP.set(this, map);\n    }\n\n    var oldTimeout = map.get(type);\n    map[\"delete\"](type);\n    window.clearTimeout(oldTimeout);\n    var timeout = window.setTimeout(function () {\n      // if we cleared out all timeouts for the current target, delete its map\n      if (map.size === 0) {\n        map = null;\n        EVENT_MAP[\"delete\"](_this);\n      }\n\n      _this.trigger(event);\n    }, 0);\n    map.set(type, timeout);\n  };\n\n  /**\n   * @file mixins/evented.js\n   * @module evented\n   */\n\n  var objName = function objName(obj) {\n    if (typeof obj.name === 'function') {\n      return obj.name();\n    }\n\n    if (typeof obj.name === 'string') {\n      return obj.name;\n    }\n\n    if (obj.name_) {\n      return obj.name_;\n    }\n\n    if (obj.constructor && obj.constructor.name) {\n      return obj.constructor.name;\n    }\n\n    return typeof obj;\n  };\n  /**\n   * Returns whether or not an object has had the evented mixin applied.\n   *\n   * @param  {Object} object\n   *         An object to test.\n   *\n   * @return {boolean}\n   *         Whether or not the object appears to be evented.\n   */\n\n\n  var isEvented = function isEvented(object) {\n    return object instanceof EventTarget$2 || !!object.eventBusEl_ && ['on', 'one', 'off', 'trigger'].every(function (k) {\n      return typeof object[k] === 'function';\n    });\n  };\n  /**\n   * Adds a callback to run after the evented mixin applied.\n   *\n   * @param  {Object} object\n   *         An object to Add\n   * @param  {Function} callback\n   *         The callback to run.\n   */\n\n\n  var addEventedCallback = function addEventedCallback(target, callback) {\n    if (isEvented(target)) {\n      callback();\n    } else {\n      if (!target.eventedCallbacks) {\n        target.eventedCallbacks = [];\n      }\n\n      target.eventedCallbacks.push(callback);\n    }\n  };\n  /**\n   * Whether a value is a valid event type - non-empty string or array.\n   *\n   * @private\n   * @param  {string|Array} type\n   *         The type value to test.\n   *\n   * @return {boolean}\n   *         Whether or not the type is a valid event type.\n   */\n\n\n  var isValidEventType = function isValidEventType(type) {\n    return (// The regex here verifies that the `type` contains at least one non-\n      // whitespace character.\n      typeof type === 'string' && /\\S/.test(type) || Array.isArray(type) && !!type.length\n    );\n  };\n  /**\n   * Validates a value to determine if it is a valid event target. Throws if not.\n   *\n   * @private\n   * @throws {Error}\n   *         If the target does not appear to be a valid event target.\n   *\n   * @param  {Object} target\n   *         The object to test.\n   *\n   * @param  {Object} obj\n   *         The evented object we are validating for\n   *\n   * @param  {string} fnName\n   *         The name of the evented mixin function that called this.\n   */\n\n\n  var validateTarget = function validateTarget(target, obj, fnName) {\n    if (!target || !target.nodeName && !isEvented(target)) {\n      throw new Error(\"Invalid target for \" + objName(obj) + \"#\" + fnName + \"; must be a DOM node or evented object.\");\n    }\n  };\n  /**\n   * Validates a value to determine if it is a valid event target. Throws if not.\n   *\n   * @private\n   * @throws {Error}\n   *         If the type does not appear to be a valid event type.\n   *\n   * @param  {string|Array} type\n   *         The type to test.\n   *\n   * @param  {Object} obj\n  *         The evented object we are validating for\n   *\n   * @param  {string} fnName\n   *         The name of the evented mixin function that called this.\n   */\n\n\n  var validateEventType = function validateEventType(type, obj, fnName) {\n    if (!isValidEventType(type)) {\n      throw new Error(\"Invalid event type for \" + objName(obj) + \"#\" + fnName + \"; must be a non-empty string or array.\");\n    }\n  };\n  /**\n   * Validates a value to determine if it is a valid listener. Throws if not.\n   *\n   * @private\n   * @throws {Error}\n   *         If the listener is not a function.\n   *\n   * @param  {Function} listener\n   *         The listener to test.\n   *\n   * @param  {Object} obj\n   *         The evented object we are validating for\n   *\n   * @param  {string} fnName\n   *         The name of the evented mixin function that called this.\n   */\n\n\n  var validateListener = function validateListener(listener, obj, fnName) {\n    if (typeof listener !== 'function') {\n      throw new Error(\"Invalid listener for \" + objName(obj) + \"#\" + fnName + \"; must be a function.\");\n    }\n  };\n  /**\n   * Takes an array of arguments given to `on()` or `one()`, validates them, and\n   * normalizes them into an object.\n   *\n   * @private\n   * @param  {Object} self\n   *         The evented object on which `on()` or `one()` was called. This\n   *         object will be bound as the `this` value for the listener.\n   *\n   * @param  {Array} args\n   *         An array of arguments passed to `on()` or `one()`.\n   *\n   * @param  {string} fnName\n   *         The name of the evented mixin function that called this.\n   *\n   * @return {Object}\n   *         An object containing useful values for `on()` or `one()` calls.\n   */\n\n\n  var normalizeListenArgs = function normalizeListenArgs(self, args, fnName) {\n    // If the number of arguments is less than 3, the target is always the\n    // evented object itself.\n    var isTargetingSelf = args.length < 3 || args[0] === self || args[0] === self.eventBusEl_;\n    var target;\n    var type;\n    var listener;\n\n    if (isTargetingSelf) {\n      target = self.eventBusEl_; // Deal with cases where we got 3 arguments, but we are still listening to\n      // the evented object itself.\n\n      if (args.length >= 3) {\n        args.shift();\n      }\n\n      type = args[0];\n      listener = args[1];\n    } else {\n      target = args[0];\n      type = args[1];\n      listener = args[2];\n    }\n\n    validateTarget(target, self, fnName);\n    validateEventType(type, self, fnName);\n    validateListener(listener, self, fnName);\n    listener = bind(self, listener);\n    return {\n      isTargetingSelf: isTargetingSelf,\n      target: target,\n      type: type,\n      listener: listener\n    };\n  };\n  /**\n   * Adds the listener to the event type(s) on the target, normalizing for\n   * the type of target.\n   *\n   * @private\n   * @param  {Element|Object} target\n   *         A DOM node or evented object.\n   *\n   * @param  {string} method\n   *         The event binding method to use (\"on\" or \"one\").\n   *\n   * @param  {string|Array} type\n   *         One or more event type(s).\n   *\n   * @param  {Function} listener\n   *         A listener function.\n   */\n\n\n  var listen = function listen(target, method, type, listener) {\n    validateTarget(target, target, method);\n\n    if (target.nodeName) {\n      Events[method](target, type, listener);\n    } else {\n      target[method](type, listener);\n    }\n  };\n  /**\n   * Contains methods that provide event capabilities to an object which is passed\n   * to {@link module:evented|evented}.\n   *\n   * @mixin EventedMixin\n   */\n\n\n  var EventedMixin = {\n    /**\n     * Add a listener to an event (or events) on this object or another evented\n     * object.\n     *\n     * @param  {string|Array|Element|Object} targetOrType\n     *         If this is a string or array, it represents the event type(s)\n     *         that will trigger the listener.\n     *\n     *         Another evented object can be passed here instead, which will\n     *         cause the listener to listen for events on _that_ object.\n     *\n     *         In either case, the listener's `this` value will be bound to\n     *         this object.\n     *\n     * @param  {string|Array|Function} typeOrListener\n     *         If the first argument was a string or array, this should be the\n     *         listener function. Otherwise, this is a string or array of event\n     *         type(s).\n     *\n     * @param  {Function} [listener]\n     *         If the first argument was another evented object, this will be\n     *         the listener function.\n     */\n    on: function on() {\n      var _this = this;\n\n      for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {\n        args[_key] = arguments[_key];\n      }\n\n      var _normalizeListenArgs = normalizeListenArgs(this, args, 'on'),\n          isTargetingSelf = _normalizeListenArgs.isTargetingSelf,\n          target = _normalizeListenArgs.target,\n          type = _normalizeListenArgs.type,\n          listener = _normalizeListenArgs.listener;\n\n      listen(target, 'on', type, listener); // If this object is listening to another evented object.\n\n      if (!isTargetingSelf) {\n        // If this object is disposed, remove the listener.\n        var removeListenerOnDispose = function removeListenerOnDispose() {\n          return _this.off(target, type, listener);\n        }; // Use the same function ID as the listener so we can remove it later it\n        // using the ID of the original listener.\n\n\n        removeListenerOnDispose.guid = listener.guid; // Add a listener to the target's dispose event as well. This ensures\n        // that if the target is disposed BEFORE this object, we remove the\n        // removal listener that was just added. Otherwise, we create a memory leak.\n\n        var removeRemoverOnTargetDispose = function removeRemoverOnTargetDispose() {\n          return _this.off('dispose', removeListenerOnDispose);\n        }; // Use the same function ID as the listener so we can remove it later\n        // it using the ID of the original listener.\n\n\n        removeRemoverOnTargetDispose.guid = listener.guid;\n        listen(this, 'on', 'dispose', removeListenerOnDispose);\n        listen(target, 'on', 'dispose', removeRemoverOnTargetDispose);\n      }\n    },\n\n    /**\n     * Add a listener to an event (or events) on this object or another evented\n     * object. The listener will be called once per event and then removed.\n     *\n     * @param  {string|Array|Element|Object} targetOrType\n     *         If this is a string or array, it represents the event type(s)\n     *         that will trigger the listener.\n     *\n     *         Another evented object can be passed here instead, which will\n     *         cause the listener to listen for events on _that_ object.\n     *\n     *         In either case, the listener's `this` value will be bound to\n     *         this object.\n     *\n     * @param  {string|Array|Function} typeOrListener\n     *         If the first argument was a string or array, this should be the\n     *         listener function. Otherwise, this is a string or array of event\n     *         type(s).\n     *\n     * @param  {Function} [listener]\n     *         If the first argument was another evented object, this will be\n     *         the listener function.\n     */\n    one: function one() {\n      var _this2 = this;\n\n      for (var _len2 = arguments.length, args = new Array(_len2), _key2 = 0; _key2 < _len2; _key2++) {\n        args[_key2] = arguments[_key2];\n      }\n\n      var _normalizeListenArgs2 = normalizeListenArgs(this, args, 'one'),\n          isTargetingSelf = _normalizeListenArgs2.isTargetingSelf,\n          target = _normalizeListenArgs2.target,\n          type = _normalizeListenArgs2.type,\n          listener = _normalizeListenArgs2.listener; // Targeting this evented object.\n\n\n      if (isTargetingSelf) {\n        listen(target, 'one', type, listener); // Targeting another evented object.\n      } else {\n        // TODO: This wrapper is incorrect! It should only\n        //       remove the wrapper for the event type that called it.\n        //       Instead all listners are removed on the first trigger!\n        //       see https://github.com/videojs/video.js/issues/5962\n        var wrapper = function wrapper() {\n          _this2.off(target, type, wrapper);\n\n          for (var _len3 = arguments.length, largs = new Array(_len3), _key3 = 0; _key3 < _len3; _key3++) {\n            largs[_key3] = arguments[_key3];\n          }\n\n          listener.apply(null, largs);\n        }; // Use the same function ID as the listener so we can remove it later\n        // it using the ID of the original listener.\n\n\n        wrapper.guid = listener.guid;\n        listen(target, 'one', type, wrapper);\n      }\n    },\n\n    /**\n     * Add a listener to an event (or events) on this object or another evented\n     * object. The listener will only be called once for the first event that is triggered\n     * then removed.\n     *\n     * @param  {string|Array|Element|Object} targetOrType\n     *         If this is a string or array, it represents the event type(s)\n     *         that will trigger the listener.\n     *\n     *         Another evented object can be passed here instead, which will\n     *         cause the listener to listen for events on _that_ object.\n     *\n     *         In either case, the listener's `this` value will be bound to\n     *         this object.\n     *\n     * @param  {string|Array|Function} typeOrListener\n     *         If the first argument was a string or array, this should be the\n     *         listener function. Otherwise, this is a string or array of event\n     *         type(s).\n     *\n     * @param  {Function} [listener]\n     *         If the first argument was another evented object, this will be\n     *         the listener function.\n     */\n    any: function any() {\n      var _this3 = this;\n\n      for (var _len4 = arguments.length, args = new Array(_len4), _key4 = 0; _key4 < _len4; _key4++) {\n        args[_key4] = arguments[_key4];\n      }\n\n      var _normalizeListenArgs3 = normalizeListenArgs(this, args, 'any'),\n          isTargetingSelf = _normalizeListenArgs3.isTargetingSelf,\n          target = _normalizeListenArgs3.target,\n          type = _normalizeListenArgs3.type,\n          listener = _normalizeListenArgs3.listener; // Targeting this evented object.\n\n\n      if (isTargetingSelf) {\n        listen(target, 'any', type, listener); // Targeting another evented object.\n      } else {\n        var wrapper = function wrapper() {\n          _this3.off(target, type, wrapper);\n\n          for (var _len5 = arguments.length, largs = new Array(_len5), _key5 = 0; _key5 < _len5; _key5++) {\n            largs[_key5] = arguments[_key5];\n          }\n\n          listener.apply(null, largs);\n        }; // Use the same function ID as the listener so we can remove it later\n        // it using the ID of the original listener.\n\n\n        wrapper.guid = listener.guid;\n        listen(target, 'any', type, wrapper);\n      }\n    },\n\n    /**\n     * Removes listener(s) from event(s) on an evented object.\n     *\n     * @param  {string|Array|Element|Object} [targetOrType]\n     *         If this is a string or array, it represents the event type(s).\n     *\n     *         Another evented object can be passed here instead, in which case\n     *         ALL 3 arguments are _required_.\n     *\n     * @param  {string|Array|Function} [typeOrListener]\n     *         If the first argument was a string or array, this may be the\n     *         listener function. Otherwise, this is a string or array of event\n     *         type(s).\n     *\n     * @param  {Function} [listener]\n     *         If the first argument was another evented object, this will be\n     *         the listener function; otherwise, _all_ listeners bound to the\n     *         event type(s) will be removed.\n     */\n    off: function off$1(targetOrType, typeOrListener, listener) {\n      // Targeting this evented object.\n      if (!targetOrType || isValidEventType(targetOrType)) {\n        off(this.eventBusEl_, targetOrType, typeOrListener); // Targeting another evented object.\n      } else {\n        var target = targetOrType;\n        var type = typeOrListener; // Fail fast and in a meaningful way!\n\n        validateTarget(target, this, 'off');\n        validateEventType(type, this, 'off');\n        validateListener(listener, this, 'off'); // Ensure there's at least a guid, even if the function hasn't been used\n\n        listener = bind(this, listener); // Remove the dispose listener on this evented object, which was given\n        // the same guid as the event listener in on().\n\n        this.off('dispose', listener);\n\n        if (target.nodeName) {\n          off(target, type, listener);\n          off(target, 'dispose', listener);\n        } else if (isEvented(target)) {\n          target.off(type, listener);\n          target.off('dispose', listener);\n        }\n      }\n    },\n\n    /**\n     * Fire an event on this evented object, causing its listeners to be called.\n     *\n     * @param   {string|Object} event\n     *          An event type or an object with a type property.\n     *\n     * @param   {Object} [hash]\n     *          An additional object to pass along to listeners.\n     *\n     * @return {boolean}\n     *          Whether or not the default behavior was prevented.\n     */\n    trigger: function trigger$1(event, hash) {\n      validateTarget(this.eventBusEl_, this, 'trigger');\n      var type = event && typeof event !== 'string' ? event.type : event;\n\n      if (!isValidEventType(type)) {\n        var error = \"Invalid event type for \" + objName(this) + \"#trigger; \" + 'must be a non-empty string or object with a type key that has a non-empty value.';\n\n        if (event) {\n          (this.log || log$1).error(error);\n        } else {\n          throw new Error(error);\n        }\n      }\n\n      return trigger(this.eventBusEl_, event, hash);\n    }\n  };\n  /**\n   * Applies {@link module:evented~EventedMixin|EventedMixin} to a target object.\n   *\n   * @param  {Object} target\n   *         The object to which to add event methods.\n   *\n   * @param  {Object} [options={}]\n   *         Options for customizing the mixin behavior.\n   *\n   * @param  {string} [options.eventBusKey]\n   *         By default, adds a `eventBusEl_` DOM element to the target object,\n   *         which is used as an event bus. If the target object already has a\n   *         DOM element that should be used, pass its key here.\n   *\n   * @return {Object}\n   *         The target object.\n   */\n\n  function evented(target, options) {\n    if (options === void 0) {\n      options = {};\n    }\n\n    var _options = options,\n        eventBusKey = _options.eventBusKey; // Set or create the eventBusEl_.\n\n    if (eventBusKey) {\n      if (!target[eventBusKey].nodeName) {\n        throw new Error(\"The eventBusKey \\\"\" + eventBusKey + \"\\\" does not refer to an element.\");\n      }\n\n      target.eventBusEl_ = target[eventBusKey];\n    } else {\n      target.eventBusEl_ = createEl('span', {\n        className: 'vjs-event-bus'\n      });\n    }\n\n    assign(target, EventedMixin);\n\n    if (target.eventedCallbacks) {\n      target.eventedCallbacks.forEach(function (callback) {\n        callback();\n      });\n    } // When any evented object is disposed, it removes all its listeners.\n\n\n    target.on('dispose', function () {\n      target.off();\n      [target, target.el_, target.eventBusEl_].forEach(function (val) {\n        if (val && DomData.has(val)) {\n          DomData[\"delete\"](val);\n        }\n      });\n      window.setTimeout(function () {\n        target.eventBusEl_ = null;\n      }, 0);\n    });\n    return target;\n  }\n\n  /**\n   * @file mixins/stateful.js\n   * @module stateful\n   */\n  /**\n   * Contains methods that provide statefulness to an object which is passed\n   * to {@link module:stateful}.\n   *\n   * @mixin StatefulMixin\n   */\n\n  var StatefulMixin = {\n    /**\n     * A hash containing arbitrary keys and values representing the state of\n     * the object.\n     *\n     * @type {Object}\n     */\n    state: {},\n\n    /**\n     * Set the state of an object by mutating its\n     * {@link module:stateful~StatefulMixin.state|state} object in place.\n     *\n     * @fires   module:stateful~StatefulMixin#statechanged\n     * @param   {Object|Function} stateUpdates\n     *          A new set of properties to shallow-merge into the plugin state.\n     *          Can be a plain object or a function returning a plain object.\n     *\n     * @return {Object|undefined}\n     *          An object containing changes that occurred. If no changes\n     *          occurred, returns `undefined`.\n     */\n    setState: function setState(stateUpdates) {\n      var _this = this;\n\n      // Support providing the `stateUpdates` state as a function.\n      if (typeof stateUpdates === 'function') {\n        stateUpdates = stateUpdates();\n      }\n\n      var changes;\n      each(stateUpdates, function (value, key) {\n        // Record the change if the value is different from what's in the\n        // current state.\n        if (_this.state[key] !== value) {\n          changes = changes || {};\n          changes[key] = {\n            from: _this.state[key],\n            to: value\n          };\n        }\n\n        _this.state[key] = value;\n      }); // Only trigger \"statechange\" if there were changes AND we have a trigger\n      // function. This allows us to not require that the target object be an\n      // evented object.\n\n      if (changes && isEvented(this)) {\n        /**\n         * An event triggered on an object that is both\n         * {@link module:stateful|stateful} and {@link module:evented|evented}\n         * indicating that its state has changed.\n         *\n         * @event    module:stateful~StatefulMixin#statechanged\n         * @type     {Object}\n         * @property {Object} changes\n         *           A hash containing the properties that were changed and\n         *           the values they were changed `from` and `to`.\n         */\n        this.trigger({\n          changes: changes,\n          type: 'statechanged'\n        });\n      }\n\n      return changes;\n    }\n  };\n  /**\n   * Applies {@link module:stateful~StatefulMixin|StatefulMixin} to a target\n   * object.\n   *\n   * If the target object is {@link module:evented|evented} and has a\n   * `handleStateChanged` method, that method will be automatically bound to the\n   * `statechanged` event on itself.\n   *\n   * @param   {Object} target\n   *          The object to be made stateful.\n   *\n   * @param   {Object} [defaultState]\n   *          A default set of properties to populate the newly-stateful object's\n   *          `state` property.\n   *\n   * @return {Object}\n   *          Returns the `target`.\n   */\n\n  function stateful(target, defaultState) {\n    assign(target, StatefulMixin); // This happens after the mixing-in because we need to replace the `state`\n    // added in that step.\n\n    target.state = assign({}, target.state, defaultState); // Auto-bind the `handleStateChanged` method of the target object if it exists.\n\n    if (typeof target.handleStateChanged === 'function' && isEvented(target)) {\n      target.on('statechanged', target.handleStateChanged);\n    }\n\n    return target;\n  }\n\n  /**\n   * @file string-cases.js\n   * @module to-lower-case\n   */\n\n  /**\n   * Lowercase the first letter of a string.\n   *\n   * @param {string} string\n   *        String to be lowercased\n   *\n   * @return {string}\n   *         The string with a lowercased first letter\n   */\n  var toLowerCase = function toLowerCase(string) {\n    if (typeof string !== 'string') {\n      return string;\n    }\n\n    return string.replace(/./, function (w) {\n      return w.toLowerCase();\n    });\n  };\n  /**\n   * Uppercase the first letter of a string.\n   *\n   * @param {string} string\n   *        String to be uppercased\n   *\n   * @return {string}\n   *         The string with an uppercased first letter\n   */\n\n  var toTitleCase$1 = function toTitleCase(string) {\n    if (typeof string !== 'string') {\n      return string;\n    }\n\n    return string.replace(/./, function (w) {\n      return w.toUpperCase();\n    });\n  };\n  /**\n   * Compares the TitleCase versions of the two strings for equality.\n   *\n   * @param {string} str1\n   *        The first string to compare\n   *\n   * @param {string} str2\n   *        The second string to compare\n   *\n   * @return {boolean}\n   *         Whether the TitleCase versions of the strings are equal\n   */\n\n  var titleCaseEquals = function titleCaseEquals(str1, str2) {\n    return toTitleCase$1(str1) === toTitleCase$1(str2);\n  };\n\n  /**\n   * @file merge-options.js\n   * @module merge-options\n   */\n  /**\n   * Merge two objects recursively.\n   *\n   * Performs a deep merge like\n   * {@link https://lodash.com/docs/4.17.10#merge|lodash.merge}, but only merges\n   * plain objects (not arrays, elements, or anything else).\n   *\n   * Non-plain object values will be copied directly from the right-most\n   * argument.\n   *\n   * @static\n   * @param   {Object[]} sources\n   *          One or more objects to merge into a new object.\n   *\n   * @return {Object}\n   *          A new object that is the merged result of all sources.\n   */\n\n  function mergeOptions$3() {\n    var result = {};\n\n    for (var _len = arguments.length, sources = new Array(_len), _key = 0; _key < _len; _key++) {\n      sources[_key] = arguments[_key];\n    }\n\n    sources.forEach(function (source) {\n      if (!source) {\n        return;\n      }\n\n      each(source, function (value, key) {\n        if (!isPlain(value)) {\n          result[key] = value;\n          return;\n        }\n\n        if (!isPlain(result[key])) {\n          result[key] = {};\n        }\n\n        result[key] = mergeOptions$3(result[key], value);\n      });\n    });\n    return result;\n  }\n\n  var MapSham = /*#__PURE__*/function () {\n    function MapSham() {\n      this.map_ = {};\n    }\n\n    var _proto = MapSham.prototype;\n\n    _proto.has = function has(key) {\n      return key in this.map_;\n    };\n\n    _proto[\"delete\"] = function _delete(key) {\n      var has = this.has(key);\n      delete this.map_[key];\n      return has;\n    };\n\n    _proto.set = function set(key, value) {\n      this.map_[key] = value;\n      return this;\n    };\n\n    _proto.forEach = function forEach(callback, thisArg) {\n      for (var key in this.map_) {\n        callback.call(thisArg, this.map_[key], key, this);\n      }\n    };\n\n    return MapSham;\n  }();\n\n  var Map$1 = window.Map ? window.Map : MapSham;\n\n  var SetSham = /*#__PURE__*/function () {\n    function SetSham() {\n      this.set_ = {};\n    }\n\n    var _proto = SetSham.prototype;\n\n    _proto.has = function has(key) {\n      return key in this.set_;\n    };\n\n    _proto[\"delete\"] = function _delete(key) {\n      var has = this.has(key);\n      delete this.set_[key];\n      return has;\n    };\n\n    _proto.add = function add(key) {\n      this.set_[key] = 1;\n      return this;\n    };\n\n    _proto.forEach = function forEach(callback, thisArg) {\n      for (var key in this.set_) {\n        callback.call(thisArg, key, key, this);\n      }\n    };\n\n    return SetSham;\n  }();\n\n  var Set$1 = window.Set ? window.Set : SetSham;\n\n  var keycode = createCommonjsModule(function (module, exports) {\n    // Source: http://jsfiddle.net/vWx8V/\n    // http://stackoverflow.com/questions/5603195/full-list-of-javascript-keycodes\n\n    /**\n     * Conenience method returns corresponding value for given keyName or keyCode.\n     *\n     * @param {Mixed} keyCode {Number} or keyName {String}\n     * @return {Mixed}\n     * @api public\n     */\n    function keyCode(searchInput) {\n      // Keyboard Events\n      if (searchInput && 'object' === typeof searchInput) {\n        var hasKeyCode = searchInput.which || searchInput.keyCode || searchInput.charCode;\n        if (hasKeyCode) searchInput = hasKeyCode;\n      } // Numbers\n\n\n      if ('number' === typeof searchInput) return names[searchInput]; // Everything else (cast to string)\n\n      var search = String(searchInput); // check codes\n\n      var foundNamedKey = codes[search.toLowerCase()];\n      if (foundNamedKey) return foundNamedKey; // check aliases\n\n      var foundNamedKey = aliases[search.toLowerCase()];\n      if (foundNamedKey) return foundNamedKey; // weird character?\n\n      if (search.length === 1) return search.charCodeAt(0);\n      return undefined;\n    }\n    /**\n     * Compares a keyboard event with a given keyCode or keyName.\n     *\n     * @param {Event} event Keyboard event that should be tested\n     * @param {Mixed} keyCode {Number} or keyName {String}\n     * @return {Boolean}\n     * @api public\n     */\n\n\n    keyCode.isEventKey = function isEventKey(event, nameOrCode) {\n      if (event && 'object' === typeof event) {\n        var keyCode = event.which || event.keyCode || event.charCode;\n\n        if (keyCode === null || keyCode === undefined) {\n          return false;\n        }\n\n        if (typeof nameOrCode === 'string') {\n          // check codes\n          var foundNamedKey = codes[nameOrCode.toLowerCase()];\n\n          if (foundNamedKey) {\n            return foundNamedKey === keyCode;\n          } // check aliases\n\n\n          var foundNamedKey = aliases[nameOrCode.toLowerCase()];\n\n          if (foundNamedKey) {\n            return foundNamedKey === keyCode;\n          }\n        } else if (typeof nameOrCode === 'number') {\n          return nameOrCode === keyCode;\n        }\n\n        return false;\n      }\n    };\n\n    exports = module.exports = keyCode;\n    /**\n     * Get by name\n     *\n     *   exports.code['enter'] // => 13\n     */\n\n    var codes = exports.code = exports.codes = {\n      'backspace': 8,\n      'tab': 9,\n      'enter': 13,\n      'shift': 16,\n      'ctrl': 17,\n      'alt': 18,\n      'pause/break': 19,\n      'caps lock': 20,\n      'esc': 27,\n      'space': 32,\n      'page up': 33,\n      'page down': 34,\n      'end': 35,\n      'home': 36,\n      'left': 37,\n      'up': 38,\n      'right': 39,\n      'down': 40,\n      'insert': 45,\n      'delete': 46,\n      'command': 91,\n      'left command': 91,\n      'right command': 93,\n      'numpad *': 106,\n      'numpad +': 107,\n      'numpad -': 109,\n      'numpad .': 110,\n      'numpad /': 111,\n      'num lock': 144,\n      'scroll lock': 145,\n      'my computer': 182,\n      'my calculator': 183,\n      ';': 186,\n      '=': 187,\n      ',': 188,\n      '-': 189,\n      '.': 190,\n      '/': 191,\n      '`': 192,\n      '[': 219,\n      '\\\\': 220,\n      ']': 221,\n      \"'\": 222\n    }; // Helper aliases\n\n    var aliases = exports.aliases = {\n      'windows': 91,\n      '⇧': 16,\n      '⌥': 18,\n      '⌃': 17,\n      '⌘': 91,\n      'ctl': 17,\n      'control': 17,\n      'option': 18,\n      'pause': 19,\n      'break': 19,\n      'caps': 20,\n      'return': 13,\n      'escape': 27,\n      'spc': 32,\n      'spacebar': 32,\n      'pgup': 33,\n      'pgdn': 34,\n      'ins': 45,\n      'del': 46,\n      'cmd': 91\n    };\n    /*!\n     * Programatically add the following\n     */\n    // lower case chars\n\n    for (i = 97; i < 123; i++) {\n      codes[String.fromCharCode(i)] = i - 32;\n    } // numbers\n\n\n    for (var i = 48; i < 58; i++) {\n      codes[i - 48] = i;\n    } // function keys\n\n\n    for (i = 1; i < 13; i++) {\n      codes['f' + i] = i + 111;\n    } // numpad keys\n\n\n    for (i = 0; i < 10; i++) {\n      codes['numpad ' + i] = i + 96;\n    }\n    /**\n     * Get by code\n     *\n     *   exports.name[13] // => 'Enter'\n     */\n\n\n    var names = exports.names = exports.title = {}; // title for backward compat\n    // Create reverse mapping\n\n    for (i in codes) {\n      names[codes[i]] = i;\n    } // Add aliases\n\n\n    for (var alias in aliases) {\n      codes[alias] = aliases[alias];\n    }\n  });\n  keycode.code;\n  keycode.codes;\n  keycode.aliases;\n  keycode.names;\n  keycode.title;\n\n  /**\n   * Player Component - Base class for all UI objects\n   *\n   * @file component.js\n   */\n  /**\n   * Base class for all UI Components.\n   * Components are UI objects which represent both a javascript object and an element\n   * in the DOM. They can be children of other components, and can have\n   * children themselves.\n   *\n   * Components can also use methods from {@link EventTarget}\n   */\n\n  var Component$1 = /*#__PURE__*/function () {\n    /**\n     * A callback that is called when a component is ready. Does not have any\n     * paramters and any callback value will be ignored.\n     *\n     * @callback Component~ReadyCallback\n     * @this Component\n     */\n\n    /**\n     * Creates an instance of this class.\n     *\n     * @param {Player} player\n     *        The `Player` that this class should be attached to.\n     *\n     * @param {Object} [options]\n     *        The key/value store of component options.\n     *\n     * @param {Object[]} [options.children]\n     *        An array of children objects to intialize this component with. Children objects have\n     *        a name property that will be used if more than one component of the same type needs to be\n     *        added.\n     *\n     * @param  {string} [options.className]\n     *         A class or space separated list of classes to add the component\n     *\n     * @param {Component~ReadyCallback} [ready]\n     *        Function that gets called when the `Component` is ready.\n     */\n    function Component(player, options, ready) {\n      var _this = this;\n\n      // The component might be the player itself and we can't pass `this` to super\n      if (!player && this.play) {\n        this.player_ = player = this; // eslint-disable-line\n      } else {\n        this.player_ = player;\n      }\n\n      this.isDisposed_ = false; // Hold the reference to the parent component via `addChild` method\n\n      this.parentComponent_ = null; // Make a copy of prototype.options_ to protect against overriding defaults\n\n      this.options_ = mergeOptions$3({}, this.options_); // Updated options with supplied options\n\n      options = this.options_ = mergeOptions$3(this.options_, options); // Get ID from options or options element if one is supplied\n\n      this.id_ = options.id || options.el && options.el.id; // If there was no ID from the options, generate one\n\n      if (!this.id_) {\n        // Don't require the player ID function in the case of mock players\n        var id = player && player.id && player.id() || 'no_player';\n        this.id_ = id + \"_component_\" + newGUID();\n      }\n\n      this.name_ = options.name || null; // Create element if one wasn't provided in options\n\n      if (options.el) {\n        this.el_ = options.el;\n      } else if (options.createEl !== false) {\n        this.el_ = this.createEl();\n      }\n\n      if (options.className && this.el_) {\n        options.className.split(' ').forEach(function (c) {\n          return _this.addClass(c);\n        });\n      } // if evented is anything except false, we want to mixin in evented\n\n\n      if (options.evented !== false) {\n        // Make this an evented object and use `el_`, if available, as its event bus\n        evented(this, {\n          eventBusKey: this.el_ ? 'el_' : null\n        });\n        this.handleLanguagechange = this.handleLanguagechange.bind(this);\n        this.on(this.player_, 'languagechange', this.handleLanguagechange);\n      }\n\n      stateful(this, this.constructor.defaultState);\n      this.children_ = [];\n      this.childIndex_ = {};\n      this.childNameIndex_ = {};\n      this.setTimeoutIds_ = new Set$1();\n      this.setIntervalIds_ = new Set$1();\n      this.rafIds_ = new Set$1();\n      this.namedRafs_ = new Map$1();\n      this.clearingTimersOnDispose_ = false; // Add any child components in options\n\n      if (options.initChildren !== false) {\n        this.initChildren();\n      } // Don't want to trigger ready here or it will go before init is actually\n      // finished for all children that run this constructor\n\n\n      this.ready(ready);\n\n      if (options.reportTouchActivity !== false) {\n        this.enableTouchActivity();\n      }\n    }\n    /**\n     * Dispose of the `Component` and all child components.\n     *\n     * @fires Component#dispose\n     *\n     * @param {Object} options\n     * @param {Element} options.originalEl element with which to replace player element\n     */\n\n\n    var _proto = Component.prototype;\n\n    _proto.dispose = function dispose(options) {\n      if (options === void 0) {\n        options = {};\n      }\n\n      // Bail out if the component has already been disposed.\n      if (this.isDisposed_) {\n        return;\n      }\n\n      if (this.readyQueue_) {\n        this.readyQueue_.length = 0;\n      }\n      /**\n       * Triggered when a `Component` is disposed.\n       *\n       * @event Component#dispose\n       * @type {EventTarget~Event}\n       *\n       * @property {boolean} [bubbles=false]\n       *           set to false so that the dispose event does not\n       *           bubble up\n       */\n\n\n      this.trigger({\n        type: 'dispose',\n        bubbles: false\n      });\n      this.isDisposed_ = true; // Dispose all children.\n\n      if (this.children_) {\n        for (var i = this.children_.length - 1; i >= 0; i--) {\n          if (this.children_[i].dispose) {\n            this.children_[i].dispose();\n          }\n        }\n      } // Delete child references\n\n\n      this.children_ = null;\n      this.childIndex_ = null;\n      this.childNameIndex_ = null;\n      this.parentComponent_ = null;\n\n      if (this.el_) {\n        // Remove element from DOM\n        if (this.el_.parentNode) {\n          if (options.restoreEl) {\n            this.el_.parentNode.replaceChild(options.restoreEl, this.el_);\n          } else {\n            this.el_.parentNode.removeChild(this.el_);\n          }\n        }\n\n        this.el_ = null;\n      } // remove reference to the player after disposing of the element\n\n\n      this.player_ = null;\n    }\n    /**\n     * Determine whether or not this component has been disposed.\n     *\n     * @return {boolean}\n     *         If the component has been disposed, will be `true`. Otherwise, `false`.\n     */\n    ;\n\n    _proto.isDisposed = function isDisposed() {\n      return Boolean(this.isDisposed_);\n    }\n    /**\n     * Return the {@link Player} that the `Component` has attached to.\n     *\n     * @return {Player}\n     *         The player that this `Component` has attached to.\n     */\n    ;\n\n    _proto.player = function player() {\n      return this.player_;\n    }\n    /**\n     * Deep merge of options objects with new options.\n     * > Note: When both `obj` and `options` contain properties whose values are objects.\n     *         The two properties get merged using {@link module:mergeOptions}\n     *\n     * @param {Object} obj\n     *        The object that contains new options.\n     *\n     * @return {Object}\n     *         A new object of `this.options_` and `obj` merged together.\n     */\n    ;\n\n    _proto.options = function options(obj) {\n      if (!obj) {\n        return this.options_;\n      }\n\n      this.options_ = mergeOptions$3(this.options_, obj);\n      return this.options_;\n    }\n    /**\n     * Get the `Component`s DOM element\n     *\n     * @return {Element}\n     *         The DOM element for this `Component`.\n     */\n    ;\n\n    _proto.el = function el() {\n      return this.el_;\n    }\n    /**\n     * Create the `Component`s DOM element.\n     *\n     * @param {string} [tagName]\n     *        Element's DOM node type. e.g. 'div'\n     *\n     * @param {Object} [properties]\n     *        An object of properties that should be set.\n     *\n     * @param {Object} [attributes]\n     *        An object of attributes that should be set.\n     *\n     * @return {Element}\n     *         The element that gets created.\n     */\n    ;\n\n    _proto.createEl = function createEl$1(tagName, properties, attributes) {\n      return createEl(tagName, properties, attributes);\n    }\n    /**\n     * Localize a string given the string in english.\n     *\n     * If tokens are provided, it'll try and run a simple token replacement on the provided string.\n     * The tokens it looks for look like `{1}` with the index being 1-indexed into the tokens array.\n     *\n     * If a `defaultValue` is provided, it'll use that over `string`,\n     * if a value isn't found in provided language files.\n     * This is useful if you want to have a descriptive key for token replacement\n     * but have a succinct localized string and not require `en.json` to be included.\n     *\n     * Currently, it is used for the progress bar timing.\n     * ```js\n     * {\n     *   \"progress bar timing: currentTime={1} duration={2}\": \"{1} of {2}\"\n     * }\n     * ```\n     * It is then used like so:\n     * ```js\n     * this.localize('progress bar timing: currentTime={1} duration{2}',\n     *               [this.player_.currentTime(), this.player_.duration()],\n     *               '{1} of {2}');\n     * ```\n     *\n     * Which outputs something like: `01:23 of 24:56`.\n     *\n     *\n     * @param {string} string\n     *        The string to localize and the key to lookup in the language files.\n     * @param {string[]} [tokens]\n     *        If the current item has token replacements, provide the tokens here.\n     * @param {string} [defaultValue]\n     *        Defaults to `string`. Can be a default value to use for token replacement\n     *        if the lookup key is needed to be separate.\n     *\n     * @return {string}\n     *         The localized string or if no localization exists the english string.\n     */\n    ;\n\n    _proto.localize = function localize(string, tokens, defaultValue) {\n      if (defaultValue === void 0) {\n        defaultValue = string;\n      }\n\n      var code = this.player_.language && this.player_.language();\n      var languages = this.player_.languages && this.player_.languages();\n      var language = languages && languages[code];\n      var primaryCode = code && code.split('-')[0];\n      var primaryLang = languages && languages[primaryCode];\n      var localizedString = defaultValue;\n\n      if (language && language[string]) {\n        localizedString = language[string];\n      } else if (primaryLang && primaryLang[string]) {\n        localizedString = primaryLang[string];\n      }\n\n      if (tokens) {\n        localizedString = localizedString.replace(/\\{(\\d+)\\}/g, function (match, index) {\n          var value = tokens[index - 1];\n          var ret = value;\n\n          if (typeof value === 'undefined') {\n            ret = match;\n          }\n\n          return ret;\n        });\n      }\n\n      return localizedString;\n    }\n    /**\n     * Handles language change for the player in components. Should be overriden by sub-components.\n     *\n     * @abstract\n     */\n    ;\n\n    _proto.handleLanguagechange = function handleLanguagechange() {}\n    /**\n     * Return the `Component`s DOM element. This is where children get inserted.\n     * This will usually be the the same as the element returned in {@link Component#el}.\n     *\n     * @return {Element}\n     *         The content element for this `Component`.\n     */\n    ;\n\n    _proto.contentEl = function contentEl() {\n      return this.contentEl_ || this.el_;\n    }\n    /**\n     * Get this `Component`s ID\n     *\n     * @return {string}\n     *         The id of this `Component`\n     */\n    ;\n\n    _proto.id = function id() {\n      return this.id_;\n    }\n    /**\n     * Get the `Component`s name. The name gets used to reference the `Component`\n     * and is set during registration.\n     *\n     * @return {string}\n     *         The name of this `Component`.\n     */\n    ;\n\n    _proto.name = function name() {\n      return this.name_;\n    }\n    /**\n     * Get an array of all child components\n     *\n     * @return {Array}\n     *         The children\n     */\n    ;\n\n    _proto.children = function children() {\n      return this.children_;\n    }\n    /**\n     * Returns the child `Component` with the given `id`.\n     *\n     * @param {string} id\n     *        The id of the child `Component` to get.\n     *\n     * @return {Component|undefined}\n     *         The child `Component` with the given `id` or undefined.\n     */\n    ;\n\n    _proto.getChildById = function getChildById(id) {\n      return this.childIndex_[id];\n    }\n    /**\n     * Returns the child `Component` with the given `name`.\n     *\n     * @param {string} name\n     *        The name of the child `Component` to get.\n     *\n     * @return {Component|undefined}\n     *         The child `Component` with the given `name` or undefined.\n     */\n    ;\n\n    _proto.getChild = function getChild(name) {\n      if (!name) {\n        return;\n      }\n\n      return this.childNameIndex_[name];\n    }\n    /**\n     * Returns the descendant `Component` following the givent\n     * descendant `names`. For instance ['foo', 'bar', 'baz'] would\n     * try to get 'foo' on the current component, 'bar' on the 'foo'\n     * component and 'baz' on the 'bar' component and return undefined\n     * if any of those don't exist.\n     *\n     * @param {...string[]|...string} names\n     *        The name of the child `Component` to get.\n     *\n     * @return {Component|undefined}\n     *         The descendant `Component` following the given descendant\n     *         `names` or undefined.\n     */\n    ;\n\n    _proto.getDescendant = function getDescendant() {\n      for (var _len = arguments.length, names = new Array(_len), _key = 0; _key < _len; _key++) {\n        names[_key] = arguments[_key];\n      }\n\n      // flatten array argument into the main array\n      names = names.reduce(function (acc, n) {\n        return acc.concat(n);\n      }, []);\n      var currentChild = this;\n\n      for (var i = 0; i < names.length; i++) {\n        currentChild = currentChild.getChild(names[i]);\n\n        if (!currentChild || !currentChild.getChild) {\n          return;\n        }\n      }\n\n      return currentChild;\n    }\n    /**\n     * Add a child `Component` inside the current `Component`.\n     *\n     *\n     * @param {string|Component} child\n     *        The name or instance of a child to add.\n     *\n     * @param {Object} [options={}]\n     *        The key/value store of options that will get passed to children of\n     *        the child.\n     *\n     * @param {number} [index=this.children_.length]\n     *        The index to attempt to add a child into.\n     *\n     * @return {Component}\n     *         The `Component` that gets added as a child. When using a string the\n     *         `Component` will get created by this process.\n     */\n    ;\n\n    _proto.addChild = function addChild(child, options, index) {\n      if (options === void 0) {\n        options = {};\n      }\n\n      if (index === void 0) {\n        index = this.children_.length;\n      }\n\n      var component;\n      var componentName; // If child is a string, create component with options\n\n      if (typeof child === 'string') {\n        componentName = toTitleCase$1(child);\n        var componentClassName = options.componentClass || componentName; // Set name through options\n\n        options.name = componentName; // Create a new object & element for this controls set\n        // If there's no .player_, this is a player\n\n        var ComponentClass = Component.getComponent(componentClassName);\n\n        if (!ComponentClass) {\n          throw new Error(\"Component \" + componentClassName + \" does not exist\");\n        } // data stored directly on the videojs object may be\n        // misidentified as a component to retain\n        // backwards-compatibility with 4.x. check to make sure the\n        // component class can be instantiated.\n\n\n        if (typeof ComponentClass !== 'function') {\n          return null;\n        }\n\n        component = new ComponentClass(this.player_ || this, options); // child is a component instance\n      } else {\n        component = child;\n      }\n\n      if (component.parentComponent_) {\n        component.parentComponent_.removeChild(component);\n      }\n\n      this.children_.splice(index, 0, component);\n      component.parentComponent_ = this;\n\n      if (typeof component.id === 'function') {\n        this.childIndex_[component.id()] = component;\n      } // If a name wasn't used to create the component, check if we can use the\n      // name function of the component\n\n\n      componentName = componentName || component.name && toTitleCase$1(component.name());\n\n      if (componentName) {\n        this.childNameIndex_[componentName] = component;\n        this.childNameIndex_[toLowerCase(componentName)] = component;\n      } // Add the UI object's element to the container div (box)\n      // Having an element is not required\n\n\n      if (typeof component.el === 'function' && component.el()) {\n        // If inserting before a component, insert before that component's element\n        var refNode = null;\n\n        if (this.children_[index + 1]) {\n          // Most children are components, but the video tech is an HTML element\n          if (this.children_[index + 1].el_) {\n            refNode = this.children_[index + 1].el_;\n          } else if (isEl(this.children_[index + 1])) {\n            refNode = this.children_[index + 1];\n          }\n        }\n\n        this.contentEl().insertBefore(component.el(), refNode);\n      } // Return so it can stored on parent object if desired.\n\n\n      return component;\n    }\n    /**\n     * Remove a child `Component` from this `Component`s list of children. Also removes\n     * the child `Component`s element from this `Component`s element.\n     *\n     * @param {Component} component\n     *        The child `Component` to remove.\n     */\n    ;\n\n    _proto.removeChild = function removeChild(component) {\n      if (typeof component === 'string') {\n        component = this.getChild(component);\n      }\n\n      if (!component || !this.children_) {\n        return;\n      }\n\n      var childFound = false;\n\n      for (var i = this.children_.length - 1; i >= 0; i--) {\n        if (this.children_[i] === component) {\n          childFound = true;\n          this.children_.splice(i, 1);\n          break;\n        }\n      }\n\n      if (!childFound) {\n        return;\n      }\n\n      component.parentComponent_ = null;\n      this.childIndex_[component.id()] = null;\n      this.childNameIndex_[toTitleCase$1(component.name())] = null;\n      this.childNameIndex_[toLowerCase(component.name())] = null;\n      var compEl = component.el();\n\n      if (compEl && compEl.parentNode === this.contentEl()) {\n        this.contentEl().removeChild(component.el());\n      }\n    }\n    /**\n     * Add and initialize default child `Component`s based upon options.\n     */\n    ;\n\n    _proto.initChildren = function initChildren() {\n      var _this2 = this;\n\n      var children = this.options_.children;\n\n      if (children) {\n        // `this` is `parent`\n        var parentOptions = this.options_;\n\n        var handleAdd = function handleAdd(child) {\n          var name = child.name;\n          var opts = child.opts; // Allow options for children to be set at the parent options\n          // e.g. videojs(id, { controlBar: false });\n          // instead of videojs(id, { children: { controlBar: false });\n\n          if (parentOptions[name] !== undefined) {\n            opts = parentOptions[name];\n          } // Allow for disabling default components\n          // e.g. options['children']['posterImage'] = false\n\n\n          if (opts === false) {\n            return;\n          } // Allow options to be passed as a simple boolean if no configuration\n          // is necessary.\n\n\n          if (opts === true) {\n            opts = {};\n          } // We also want to pass the original player options\n          // to each component as well so they don't need to\n          // reach back into the player for options later.\n\n\n          opts.playerOptions = _this2.options_.playerOptions; // Create and add the child component.\n          // Add a direct reference to the child by name on the parent instance.\n          // If two of the same component are used, different names should be supplied\n          // for each\n\n          var newChild = _this2.addChild(name, opts);\n\n          if (newChild) {\n            _this2[name] = newChild;\n          }\n        }; // Allow for an array of children details to passed in the options\n\n\n        var workingChildren;\n        var Tech = Component.getComponent('Tech');\n\n        if (Array.isArray(children)) {\n          workingChildren = children;\n        } else {\n          workingChildren = Object.keys(children);\n        }\n\n        workingChildren // children that are in this.options_ but also in workingChildren  would\n        // give us extra children we do not want. So, we want to filter them out.\n        .concat(Object.keys(this.options_).filter(function (child) {\n          return !workingChildren.some(function (wchild) {\n            if (typeof wchild === 'string') {\n              return child === wchild;\n            }\n\n            return child === wchild.name;\n          });\n        })).map(function (child) {\n          var name;\n          var opts;\n\n          if (typeof child === 'string') {\n            name = child;\n            opts = children[name] || _this2.options_[name] || {};\n          } else {\n            name = child.name;\n            opts = child;\n          }\n\n          return {\n            name: name,\n            opts: opts\n          };\n        }).filter(function (child) {\n          // we have to make sure that child.name isn't in the techOrder since\n          // techs are registerd as Components but can't aren't compatible\n          // See https://github.com/videojs/video.js/issues/2772\n          var c = Component.getComponent(child.opts.componentClass || toTitleCase$1(child.name));\n          return c && !Tech.isTech(c);\n        }).forEach(handleAdd);\n      }\n    }\n    /**\n     * Builds the default DOM class name. Should be overriden by sub-components.\n     *\n     * @return {string}\n     *         The DOM class name for this object.\n     *\n     * @abstract\n     */\n    ;\n\n    _proto.buildCSSClass = function buildCSSClass() {\n      // Child classes can include a function that does:\n      // return 'CLASS NAME' + this._super();\n      return '';\n    }\n    /**\n     * Bind a listener to the component's ready state.\n     * Different from event listeners in that if the ready event has already happened\n     * it will trigger the function immediately.\n     *\n     * @return {Component}\n     *         Returns itself; method can be chained.\n     */\n    ;\n\n    _proto.ready = function ready(fn, sync) {\n      if (sync === void 0) {\n        sync = false;\n      }\n\n      if (!fn) {\n        return;\n      }\n\n      if (!this.isReady_) {\n        this.readyQueue_ = this.readyQueue_ || [];\n        this.readyQueue_.push(fn);\n        return;\n      }\n\n      if (sync) {\n        fn.call(this);\n      } else {\n        // Call the function asynchronously by default for consistency\n        this.setTimeout(fn, 1);\n      }\n    }\n    /**\n     * Trigger all the ready listeners for this `Component`.\n     *\n     * @fires Component#ready\n     */\n    ;\n\n    _proto.triggerReady = function triggerReady() {\n      this.isReady_ = true; // Ensure ready is triggered asynchronously\n\n      this.setTimeout(function () {\n        var readyQueue = this.readyQueue_; // Reset Ready Queue\n\n        this.readyQueue_ = [];\n\n        if (readyQueue && readyQueue.length > 0) {\n          readyQueue.forEach(function (fn) {\n            fn.call(this);\n          }, this);\n        } // Allow for using event listeners also\n\n        /**\n         * Triggered when a `Component` is ready.\n         *\n         * @event Component#ready\n         * @type {EventTarget~Event}\n         */\n\n\n        this.trigger('ready');\n      }, 1);\n    }\n    /**\n     * Find a single DOM element matching a `selector`. This can be within the `Component`s\n     * `contentEl()` or another custom context.\n     *\n     * @param {string} selector\n     *        A valid CSS selector, which will be passed to `querySelector`.\n     *\n     * @param {Element|string} [context=this.contentEl()]\n     *        A DOM element within which to query. Can also be a selector string in\n     *        which case the first matching element will get used as context. If\n     *        missing `this.contentEl()` gets used. If  `this.contentEl()` returns\n     *        nothing it falls back to `document`.\n     *\n     * @return {Element|null}\n     *         the dom element that was found, or null\n     *\n     * @see [Information on CSS Selectors](https://developer.mozilla.org/en-US/docs/Web/Guide/CSS/Getting_Started/Selectors)\n     */\n    ;\n\n    _proto.$ = function $$1(selector, context) {\n      return $(selector, context || this.contentEl());\n    }\n    /**\n     * Finds all DOM element matching a `selector`. This can be within the `Component`s\n     * `contentEl()` or another custom context.\n     *\n     * @param {string} selector\n     *        A valid CSS selector, which will be passed to `querySelectorAll`.\n     *\n     * @param {Element|string} [context=this.contentEl()]\n     *        A DOM element within which to query. Can also be a selector string in\n     *        which case the first matching element will get used as context. If\n     *        missing `this.contentEl()` gets used. If  `this.contentEl()` returns\n     *        nothing it falls back to `document`.\n     *\n     * @return {NodeList}\n     *         a list of dom elements that were found\n     *\n     * @see [Information on CSS Selectors](https://developer.mozilla.org/en-US/docs/Web/Guide/CSS/Getting_Started/Selectors)\n     */\n    ;\n\n    _proto.$$ = function $$$1(selector, context) {\n      return $$(selector, context || this.contentEl());\n    }\n    /**\n     * Check if a component's element has a CSS class name.\n     *\n     * @param {string} classToCheck\n     *        CSS class name to check.\n     *\n     * @return {boolean}\n     *         - True if the `Component` has the class.\n     *         - False if the `Component` does not have the class`\n     */\n    ;\n\n    _proto.hasClass = function hasClass$1(classToCheck) {\n      return hasClass(this.el_, classToCheck);\n    }\n    /**\n     * Add a CSS class name to the `Component`s element.\n     *\n     * @param {string} classToAdd\n     *        CSS class name to add\n     */\n    ;\n\n    _proto.addClass = function addClass$1(classToAdd) {\n      addClass(this.el_, classToAdd);\n    }\n    /**\n     * Remove a CSS class name from the `Component`s element.\n     *\n     * @param {string} classToRemove\n     *        CSS class name to remove\n     */\n    ;\n\n    _proto.removeClass = function removeClass$1(classToRemove) {\n      removeClass(this.el_, classToRemove);\n    }\n    /**\n     * Add or remove a CSS class name from the component's element.\n     * - `classToToggle` gets added when {@link Component#hasClass} would return false.\n     * - `classToToggle` gets removed when {@link Component#hasClass} would return true.\n     *\n     * @param  {string} classToToggle\n     *         The class to add or remove based on (@link Component#hasClass}\n     *\n     * @param  {boolean|Dom~predicate} [predicate]\n     *         An {@link Dom~predicate} function or a boolean\n     */\n    ;\n\n    _proto.toggleClass = function toggleClass$1(classToToggle, predicate) {\n      toggleClass(this.el_, classToToggle, predicate);\n    }\n    /**\n     * Show the `Component`s element if it is hidden by removing the\n     * 'vjs-hidden' class name from it.\n     */\n    ;\n\n    _proto.show = function show() {\n      this.removeClass('vjs-hidden');\n    }\n    /**\n     * Hide the `Component`s element if it is currently showing by adding the\n     * 'vjs-hidden` class name to it.\n     */\n    ;\n\n    _proto.hide = function hide() {\n      this.addClass('vjs-hidden');\n    }\n    /**\n     * Lock a `Component`s element in its visible state by adding the 'vjs-lock-showing'\n     * class name to it. Used during fadeIn/fadeOut.\n     *\n     * @private\n     */\n    ;\n\n    _proto.lockShowing = function lockShowing() {\n      this.addClass('vjs-lock-showing');\n    }\n    /**\n     * Unlock a `Component`s element from its visible state by removing the 'vjs-lock-showing'\n     * class name from it. Used during fadeIn/fadeOut.\n     *\n     * @private\n     */\n    ;\n\n    _proto.unlockShowing = function unlockShowing() {\n      this.removeClass('vjs-lock-showing');\n    }\n    /**\n     * Get the value of an attribute on the `Component`s element.\n     *\n     * @param {string} attribute\n     *        Name of the attribute to get the value from.\n     *\n     * @return {string|null}\n     *         - The value of the attribute that was asked for.\n     *         - Can be an empty string on some browsers if the attribute does not exist\n     *           or has no value\n     *         - Most browsers will return null if the attibute does not exist or has\n     *           no value.\n     *\n     * @see [DOM API]{@link https://developer.mozilla.org/en-US/docs/Web/API/Element/getAttribute}\n     */\n    ;\n\n    _proto.getAttribute = function getAttribute$1(attribute) {\n      return getAttribute(this.el_, attribute);\n    }\n    /**\n     * Set the value of an attribute on the `Component`'s element\n     *\n     * @param {string} attribute\n     *        Name of the attribute to set.\n     *\n     * @param {string} value\n     *        Value to set the attribute to.\n     *\n     * @see [DOM API]{@link https://developer.mozilla.org/en-US/docs/Web/API/Element/setAttribute}\n     */\n    ;\n\n    _proto.setAttribute = function setAttribute$1(attribute, value) {\n      setAttribute(this.el_, attribute, value);\n    }\n    /**\n     * Remove an attribute from the `Component`s element.\n     *\n     * @param {string} attribute\n     *        Name of the attribute to remove.\n     *\n     * @see [DOM API]{@link https://developer.mozilla.org/en-US/docs/Web/API/Element/removeAttribute}\n     */\n    ;\n\n    _proto.removeAttribute = function removeAttribute$1(attribute) {\n      removeAttribute(this.el_, attribute);\n    }\n    /**\n     * Get or set the width of the component based upon the CSS styles.\n     * See {@link Component#dimension} for more detailed information.\n     *\n     * @param {number|string} [num]\n     *        The width that you want to set postfixed with '%', 'px' or nothing.\n     *\n     * @param {boolean} [skipListeners]\n     *        Skip the componentresize event trigger\n     *\n     * @return {number|string}\n     *         The width when getting, zero if there is no width. Can be a string\n     *           postpixed with '%' or 'px'.\n     */\n    ;\n\n    _proto.width = function width(num, skipListeners) {\n      return this.dimension('width', num, skipListeners);\n    }\n    /**\n     * Get or set the height of the component based upon the CSS styles.\n     * See {@link Component#dimension} for more detailed information.\n     *\n     * @param {number|string} [num]\n     *        The height that you want to set postfixed with '%', 'px' or nothing.\n     *\n     * @param {boolean} [skipListeners]\n     *        Skip the componentresize event trigger\n     *\n     * @return {number|string}\n     *         The width when getting, zero if there is no width. Can be a string\n     *         postpixed with '%' or 'px'.\n     */\n    ;\n\n    _proto.height = function height(num, skipListeners) {\n      return this.dimension('height', num, skipListeners);\n    }\n    /**\n     * Set both the width and height of the `Component` element at the same time.\n     *\n     * @param  {number|string} width\n     *         Width to set the `Component`s element to.\n     *\n     * @param  {number|string} height\n     *         Height to set the `Component`s element to.\n     */\n    ;\n\n    _proto.dimensions = function dimensions(width, height) {\n      // Skip componentresize listeners on width for optimization\n      this.width(width, true);\n      this.height(height);\n    }\n    /**\n     * Get or set width or height of the `Component` element. This is the shared code\n     * for the {@link Component#width} and {@link Component#height}.\n     *\n     * Things to know:\n     * - If the width or height in an number this will return the number postfixed with 'px'.\n     * - If the width/height is a percent this will return the percent postfixed with '%'\n     * - Hidden elements have a width of 0 with `window.getComputedStyle`. This function\n     *   defaults to the `Component`s `style.width` and falls back to `window.getComputedStyle`.\n     *   See [this]{@link http://www.foliotek.com/devblog/getting-the-width-of-a-hidden-element-with-jquery-using-width/}\n     *   for more information\n     * - If you want the computed style of the component, use {@link Component#currentWidth}\n     *   and {@link {Component#currentHeight}\n     *\n     * @fires Component#componentresize\n     *\n     * @param {string} widthOrHeight\n     8        'width' or 'height'\n     *\n     * @param  {number|string} [num]\n     8         New dimension\n     *\n     * @param  {boolean} [skipListeners]\n     *         Skip componentresize event trigger\n     *\n     * @return {number}\n     *         The dimension when getting or 0 if unset\n     */\n    ;\n\n    _proto.dimension = function dimension(widthOrHeight, num, skipListeners) {\n      if (num !== undefined) {\n        // Set to zero if null or literally NaN (NaN !== NaN)\n        if (num === null || num !== num) {\n          num = 0;\n        } // Check if using css width/height (% or px) and adjust\n\n\n        if (('' + num).indexOf('%') !== -1 || ('' + num).indexOf('px') !== -1) {\n          this.el_.style[widthOrHeight] = num;\n        } else if (num === 'auto') {\n          this.el_.style[widthOrHeight] = '';\n        } else {\n          this.el_.style[widthOrHeight] = num + 'px';\n        } // skipListeners allows us to avoid triggering the resize event when setting both width and height\n\n\n        if (!skipListeners) {\n          /**\n           * Triggered when a component is resized.\n           *\n           * @event Component#componentresize\n           * @type {EventTarget~Event}\n           */\n          this.trigger('componentresize');\n        }\n\n        return;\n      } // Not setting a value, so getting it\n      // Make sure element exists\n\n\n      if (!this.el_) {\n        return 0;\n      } // Get dimension value from style\n\n\n      var val = this.el_.style[widthOrHeight];\n      var pxIndex = val.indexOf('px');\n\n      if (pxIndex !== -1) {\n        // Return the pixel value with no 'px'\n        return parseInt(val.slice(0, pxIndex), 10);\n      } // No px so using % or no style was set, so falling back to offsetWidth/height\n      // If component has display:none, offset will return 0\n      // TODO: handle display:none and no dimension style using px\n\n\n      return parseInt(this.el_['offset' + toTitleCase$1(widthOrHeight)], 10);\n    }\n    /**\n     * Get the computed width or the height of the component's element.\n     *\n     * Uses `window.getComputedStyle`.\n     *\n     * @param {string} widthOrHeight\n     *        A string containing 'width' or 'height'. Whichever one you want to get.\n     *\n     * @return {number}\n     *         The dimension that gets asked for or 0 if nothing was set\n     *         for that dimension.\n     */\n    ;\n\n    _proto.currentDimension = function currentDimension(widthOrHeight) {\n      var computedWidthOrHeight = 0;\n\n      if (widthOrHeight !== 'width' && widthOrHeight !== 'height') {\n        throw new Error('currentDimension only accepts width or height value');\n      }\n\n      computedWidthOrHeight = computedStyle(this.el_, widthOrHeight); // remove 'px' from variable and parse as integer\n\n      computedWidthOrHeight = parseFloat(computedWidthOrHeight); // if the computed value is still 0, it's possible that the browser is lying\n      // and we want to check the offset values.\n      // This code also runs wherever getComputedStyle doesn't exist.\n\n      if (computedWidthOrHeight === 0 || isNaN(computedWidthOrHeight)) {\n        var rule = \"offset\" + toTitleCase$1(widthOrHeight);\n        computedWidthOrHeight = this.el_[rule];\n      }\n\n      return computedWidthOrHeight;\n    }\n    /**\n     * An object that contains width and height values of the `Component`s\n     * computed style. Uses `window.getComputedStyle`.\n     *\n     * @typedef {Object} Component~DimensionObject\n     *\n     * @property {number} width\n     *           The width of the `Component`s computed style.\n     *\n     * @property {number} height\n     *           The height of the `Component`s computed style.\n     */\n\n    /**\n     * Get an object that contains computed width and height values of the\n     * component's element.\n     *\n     * Uses `window.getComputedStyle`.\n     *\n     * @return {Component~DimensionObject}\n     *         The computed dimensions of the component's element.\n     */\n    ;\n\n    _proto.currentDimensions = function currentDimensions() {\n      return {\n        width: this.currentDimension('width'),\n        height: this.currentDimension('height')\n      };\n    }\n    /**\n     * Get the computed width of the component's element.\n     *\n     * Uses `window.getComputedStyle`.\n     *\n     * @return {number}\n     *         The computed width of the component's element.\n     */\n    ;\n\n    _proto.currentWidth = function currentWidth() {\n      return this.currentDimension('width');\n    }\n    /**\n     * Get the computed height of the component's element.\n     *\n     * Uses `window.getComputedStyle`.\n     *\n     * @return {number}\n     *         The computed height of the component's element.\n     */\n    ;\n\n    _proto.currentHeight = function currentHeight() {\n      return this.currentDimension('height');\n    }\n    /**\n     * Set the focus to this component\n     */\n    ;\n\n    _proto.focus = function focus() {\n      this.el_.focus();\n    }\n    /**\n     * Remove the focus from this component\n     */\n    ;\n\n    _proto.blur = function blur() {\n      this.el_.blur();\n    }\n    /**\n     * When this Component receives a `keydown` event which it does not process,\n     *  it passes the event to the Player for handling.\n     *\n     * @param {EventTarget~Event} event\n     *        The `keydown` event that caused this function to be called.\n     */\n    ;\n\n    _proto.handleKeyDown = function handleKeyDown(event) {\n      if (this.player_) {\n        // We only stop propagation here because we want unhandled events to fall\n        // back to the browser. Exclude Tab for focus trapping.\n        if (!keycode.isEventKey(event, 'Tab')) {\n          event.stopPropagation();\n        }\n\n        this.player_.handleKeyDown(event);\n      }\n    }\n    /**\n     * Many components used to have a `handleKeyPress` method, which was poorly\n     * named because it listened to a `keydown` event. This method name now\n     * delegates to `handleKeyDown`. This means anyone calling `handleKeyPress`\n     * will not see their method calls stop working.\n     *\n     * @param {EventTarget~Event} event\n     *        The event that caused this function to be called.\n     */\n    ;\n\n    _proto.handleKeyPress = function handleKeyPress(event) {\n      this.handleKeyDown(event);\n    }\n    /**\n     * Emit a 'tap' events when touch event support gets detected. This gets used to\n     * support toggling the controls through a tap on the video. They get enabled\n     * because every sub-component would have extra overhead otherwise.\n     *\n     * @private\n     * @fires Component#tap\n     * @listens Component#touchstart\n     * @listens Component#touchmove\n     * @listens Component#touchleave\n     * @listens Component#touchcancel\n     * @listens Component#touchend\n      */\n    ;\n\n    _proto.emitTapEvents = function emitTapEvents() {\n      // Track the start time so we can determine how long the touch lasted\n      var touchStart = 0;\n      var firstTouch = null; // Maximum movement allowed during a touch event to still be considered a tap\n      // Other popular libs use anywhere from 2 (hammer.js) to 15,\n      // so 10 seems like a nice, round number.\n\n      var tapMovementThreshold = 10; // The maximum length a touch can be while still being considered a tap\n\n      var touchTimeThreshold = 200;\n      var couldBeTap;\n      this.on('touchstart', function (event) {\n        // If more than one finger, don't consider treating this as a click\n        if (event.touches.length === 1) {\n          // Copy pageX/pageY from the object\n          firstTouch = {\n            pageX: event.touches[0].pageX,\n            pageY: event.touches[0].pageY\n          }; // Record start time so we can detect a tap vs. \"touch and hold\"\n\n          touchStart = window.performance.now(); // Reset couldBeTap tracking\n\n          couldBeTap = true;\n        }\n      });\n      this.on('touchmove', function (event) {\n        // If more than one finger, don't consider treating this as a click\n        if (event.touches.length > 1) {\n          couldBeTap = false;\n        } else if (firstTouch) {\n          // Some devices will throw touchmoves for all but the slightest of taps.\n          // So, if we moved only a small distance, this could still be a tap\n          var xdiff = event.touches[0].pageX - firstTouch.pageX;\n          var ydiff = event.touches[0].pageY - firstTouch.pageY;\n          var touchDistance = Math.sqrt(xdiff * xdiff + ydiff * ydiff);\n\n          if (touchDistance > tapMovementThreshold) {\n            couldBeTap = false;\n          }\n        }\n      });\n\n      var noTap = function noTap() {\n        couldBeTap = false;\n      }; // TODO: Listen to the original target. http://youtu.be/DujfpXOKUp8?t=13m8s\n\n\n      this.on('touchleave', noTap);\n      this.on('touchcancel', noTap); // When the touch ends, measure how long it took and trigger the appropriate\n      // event\n\n      this.on('touchend', function (event) {\n        firstTouch = null; // Proceed only if the touchmove/leave/cancel event didn't happen\n\n        if (couldBeTap === true) {\n          // Measure how long the touch lasted\n          var touchTime = window.performance.now() - touchStart; // Make sure the touch was less than the threshold to be considered a tap\n\n          if (touchTime < touchTimeThreshold) {\n            // Don't let browser turn this into a click\n            event.preventDefault();\n            /**\n             * Triggered when a `Component` is tapped.\n             *\n             * @event Component#tap\n             * @type {EventTarget~Event}\n             */\n\n            this.trigger('tap'); // It may be good to copy the touchend event object and change the\n            // type to tap, if the other event properties aren't exact after\n            // Events.fixEvent runs (e.g. event.target)\n          }\n        }\n      });\n    }\n    /**\n     * This function reports user activity whenever touch events happen. This can get\n     * turned off by any sub-components that wants touch events to act another way.\n     *\n     * Report user touch activity when touch events occur. User activity gets used to\n     * determine when controls should show/hide. It is simple when it comes to mouse\n     * events, because any mouse event should show the controls. So we capture mouse\n     * events that bubble up to the player and report activity when that happens.\n     * With touch events it isn't as easy as `touchstart` and `touchend` toggle player\n     * controls. So touch events can't help us at the player level either.\n     *\n     * User activity gets checked asynchronously. So what could happen is a tap event\n     * on the video turns the controls off. Then the `touchend` event bubbles up to\n     * the player. Which, if it reported user activity, would turn the controls right\n     * back on. We also don't want to completely block touch events from bubbling up.\n     * Furthermore a `touchmove` event and anything other than a tap, should not turn\n     * controls back on.\n     *\n     * @listens Component#touchstart\n     * @listens Component#touchmove\n     * @listens Component#touchend\n     * @listens Component#touchcancel\n     */\n    ;\n\n    _proto.enableTouchActivity = function enableTouchActivity() {\n      // Don't continue if the root player doesn't support reporting user activity\n      if (!this.player() || !this.player().reportUserActivity) {\n        return;\n      } // listener for reporting that the user is active\n\n\n      var report = bind(this.player(), this.player().reportUserActivity);\n      var touchHolding;\n      this.on('touchstart', function () {\n        report(); // For as long as the they are touching the device or have their mouse down,\n        // we consider them active even if they're not moving their finger or mouse.\n        // So we want to continue to update that they are active\n\n        this.clearInterval(touchHolding); // report at the same interval as activityCheck\n\n        touchHolding = this.setInterval(report, 250);\n      });\n\n      var touchEnd = function touchEnd(event) {\n        report(); // stop the interval that maintains activity if the touch is holding\n\n        this.clearInterval(touchHolding);\n      };\n\n      this.on('touchmove', report);\n      this.on('touchend', touchEnd);\n      this.on('touchcancel', touchEnd);\n    }\n    /**\n     * A callback that has no parameters and is bound into `Component`s context.\n     *\n     * @callback Component~GenericCallback\n     * @this Component\n     */\n\n    /**\n     * Creates a function that runs after an `x` millisecond timeout. This function is a\n     * wrapper around `window.setTimeout`. There are a few reasons to use this one\n     * instead though:\n     * 1. It gets cleared via  {@link Component#clearTimeout} when\n     *    {@link Component#dispose} gets called.\n     * 2. The function callback will gets turned into a {@link Component~GenericCallback}\n     *\n     * > Note: You can't use `window.clearTimeout` on the id returned by this function. This\n     *         will cause its dispose listener not to get cleaned up! Please use\n     *         {@link Component#clearTimeout} or {@link Component#dispose} instead.\n     *\n     * @param {Component~GenericCallback} fn\n     *        The function that will be run after `timeout`.\n     *\n     * @param {number} timeout\n     *        Timeout in milliseconds to delay before executing the specified function.\n     *\n     * @return {number}\n     *         Returns a timeout ID that gets used to identify the timeout. It can also\n     *         get used in {@link Component#clearTimeout} to clear the timeout that\n     *         was set.\n     *\n     * @listens Component#dispose\n     * @see [Similar to]{@link https://developer.mozilla.org/en-US/docs/Web/API/WindowTimers/setTimeout}\n     */\n    ;\n\n    _proto.setTimeout = function setTimeout(fn, timeout) {\n      var _this3 = this;\n\n      // declare as variables so they are properly available in timeout function\n      // eslint-disable-next-line\n      var timeoutId;\n      fn = bind(this, fn);\n      this.clearTimersOnDispose_();\n      timeoutId = window.setTimeout(function () {\n        if (_this3.setTimeoutIds_.has(timeoutId)) {\n          _this3.setTimeoutIds_[\"delete\"](timeoutId);\n        }\n\n        fn();\n      }, timeout);\n      this.setTimeoutIds_.add(timeoutId);\n      return timeoutId;\n    }\n    /**\n     * Clears a timeout that gets created via `window.setTimeout` or\n     * {@link Component#setTimeout}. If you set a timeout via {@link Component#setTimeout}\n     * use this function instead of `window.clearTimout`. If you don't your dispose\n     * listener will not get cleaned up until {@link Component#dispose}!\n     *\n     * @param {number} timeoutId\n     *        The id of the timeout to clear. The return value of\n     *        {@link Component#setTimeout} or `window.setTimeout`.\n     *\n     * @return {number}\n     *         Returns the timeout id that was cleared.\n     *\n     * @see [Similar to]{@link https://developer.mozilla.org/en-US/docs/Web/API/WindowTimers/clearTimeout}\n     */\n    ;\n\n    _proto.clearTimeout = function clearTimeout(timeoutId) {\n      if (this.setTimeoutIds_.has(timeoutId)) {\n        this.setTimeoutIds_[\"delete\"](timeoutId);\n        window.clearTimeout(timeoutId);\n      }\n\n      return timeoutId;\n    }\n    /**\n     * Creates a function that gets run every `x` milliseconds. This function is a wrapper\n     * around `window.setInterval`. There are a few reasons to use this one instead though.\n     * 1. It gets cleared via  {@link Component#clearInterval} when\n     *    {@link Component#dispose} gets called.\n     * 2. The function callback will be a {@link Component~GenericCallback}\n     *\n     * @param {Component~GenericCallback} fn\n     *        The function to run every `x` seconds.\n     *\n     * @param {number} interval\n     *        Execute the specified function every `x` milliseconds.\n     *\n     * @return {number}\n     *         Returns an id that can be used to identify the interval. It can also be be used in\n     *         {@link Component#clearInterval} to clear the interval.\n     *\n     * @listens Component#dispose\n     * @see [Similar to]{@link https://developer.mozilla.org/en-US/docs/Web/API/WindowTimers/setInterval}\n     */\n    ;\n\n    _proto.setInterval = function setInterval(fn, interval) {\n      fn = bind(this, fn);\n      this.clearTimersOnDispose_();\n      var intervalId = window.setInterval(fn, interval);\n      this.setIntervalIds_.add(intervalId);\n      return intervalId;\n    }\n    /**\n     * Clears an interval that gets created via `window.setInterval` or\n     * {@link Component#setInterval}. If you set an inteval via {@link Component#setInterval}\n     * use this function instead of `window.clearInterval`. If you don't your dispose\n     * listener will not get cleaned up until {@link Component#dispose}!\n     *\n     * @param {number} intervalId\n     *        The id of the interval to clear. The return value of\n     *        {@link Component#setInterval} or `window.setInterval`.\n     *\n     * @return {number}\n     *         Returns the interval id that was cleared.\n     *\n     * @see [Similar to]{@link https://developer.mozilla.org/en-US/docs/Web/API/WindowTimers/clearInterval}\n     */\n    ;\n\n    _proto.clearInterval = function clearInterval(intervalId) {\n      if (this.setIntervalIds_.has(intervalId)) {\n        this.setIntervalIds_[\"delete\"](intervalId);\n        window.clearInterval(intervalId);\n      }\n\n      return intervalId;\n    }\n    /**\n     * Queues up a callback to be passed to requestAnimationFrame (rAF), but\n     * with a few extra bonuses:\n     *\n     * - Supports browsers that do not support rAF by falling back to\n     *   {@link Component#setTimeout}.\n     *\n     * - The callback is turned into a {@link Component~GenericCallback} (i.e.\n     *   bound to the component).\n     *\n     * - Automatic cancellation of the rAF callback is handled if the component\n     *   is disposed before it is called.\n     *\n     * @param  {Component~GenericCallback} fn\n     *         A function that will be bound to this component and executed just\n     *         before the browser's next repaint.\n     *\n     * @return {number}\n     *         Returns an rAF ID that gets used to identify the timeout. It can\n     *         also be used in {@link Component#cancelAnimationFrame} to cancel\n     *         the animation frame callback.\n     *\n     * @listens Component#dispose\n     * @see [Similar to]{@link https://developer.mozilla.org/en-US/docs/Web/API/window/requestAnimationFrame}\n     */\n    ;\n\n    _proto.requestAnimationFrame = function requestAnimationFrame(fn) {\n      var _this4 = this;\n\n      // Fall back to using a timer.\n      if (!this.supportsRaf_) {\n        return this.setTimeout(fn, 1000 / 60);\n      }\n\n      this.clearTimersOnDispose_(); // declare as variables so they are properly available in rAF function\n      // eslint-disable-next-line\n\n      var id;\n      fn = bind(this, fn);\n      id = window.requestAnimationFrame(function () {\n        if (_this4.rafIds_.has(id)) {\n          _this4.rafIds_[\"delete\"](id);\n        }\n\n        fn();\n      });\n      this.rafIds_.add(id);\n      return id;\n    }\n    /**\n     * Request an animation frame, but only one named animation\n     * frame will be queued. Another will never be added until\n     * the previous one finishes.\n     *\n     * @param {string} name\n     *        The name to give this requestAnimationFrame\n     *\n     * @param  {Component~GenericCallback} fn\n     *         A function that will be bound to this component and executed just\n     *         before the browser's next repaint.\n     */\n    ;\n\n    _proto.requestNamedAnimationFrame = function requestNamedAnimationFrame(name, fn) {\n      var _this5 = this;\n\n      if (this.namedRafs_.has(name)) {\n        return;\n      }\n\n      this.clearTimersOnDispose_();\n      fn = bind(this, fn);\n      var id = this.requestAnimationFrame(function () {\n        fn();\n\n        if (_this5.namedRafs_.has(name)) {\n          _this5.namedRafs_[\"delete\"](name);\n        }\n      });\n      this.namedRafs_.set(name, id);\n      return name;\n    }\n    /**\n     * Cancels a current named animation frame if it exists.\n     *\n     * @param {string} name\n     *        The name of the requestAnimationFrame to cancel.\n     */\n    ;\n\n    _proto.cancelNamedAnimationFrame = function cancelNamedAnimationFrame(name) {\n      if (!this.namedRafs_.has(name)) {\n        return;\n      }\n\n      this.cancelAnimationFrame(this.namedRafs_.get(name));\n      this.namedRafs_[\"delete\"](name);\n    }\n    /**\n     * Cancels a queued callback passed to {@link Component#requestAnimationFrame}\n     * (rAF).\n     *\n     * If you queue an rAF callback via {@link Component#requestAnimationFrame},\n     * use this function instead of `window.cancelAnimationFrame`. If you don't,\n     * your dispose listener will not get cleaned up until {@link Component#dispose}!\n     *\n     * @param {number} id\n     *        The rAF ID to clear. The return value of {@link Component#requestAnimationFrame}.\n     *\n     * @return {number}\n     *         Returns the rAF ID that was cleared.\n     *\n     * @see [Similar to]{@link https://developer.mozilla.org/en-US/docs/Web/API/window/cancelAnimationFrame}\n     */\n    ;\n\n    _proto.cancelAnimationFrame = function cancelAnimationFrame(id) {\n      // Fall back to using a timer.\n      if (!this.supportsRaf_) {\n        return this.clearTimeout(id);\n      }\n\n      if (this.rafIds_.has(id)) {\n        this.rafIds_[\"delete\"](id);\n        window.cancelAnimationFrame(id);\n      }\n\n      return id;\n    }\n    /**\n     * A function to setup `requestAnimationFrame`, `setTimeout`,\n     * and `setInterval`, clearing on dispose.\n     *\n     * > Previously each timer added and removed dispose listeners on it's own.\n     * For better performance it was decided to batch them all, and use `Set`s\n     * to track outstanding timer ids.\n     *\n     * @private\n     */\n    ;\n\n    _proto.clearTimersOnDispose_ = function clearTimersOnDispose_() {\n      var _this6 = this;\n\n      if (this.clearingTimersOnDispose_) {\n        return;\n      }\n\n      this.clearingTimersOnDispose_ = true;\n      this.one('dispose', function () {\n        [['namedRafs_', 'cancelNamedAnimationFrame'], ['rafIds_', 'cancelAnimationFrame'], ['setTimeoutIds_', 'clearTimeout'], ['setIntervalIds_', 'clearInterval']].forEach(function (_ref) {\n          var idName = _ref[0],\n              cancelName = _ref[1];\n\n          // for a `Set` key will actually be the value again\n          // so forEach((val, val) =>` but for maps we want to use\n          // the key.\n          _this6[idName].forEach(function (val, key) {\n            return _this6[cancelName](key);\n          });\n        });\n        _this6.clearingTimersOnDispose_ = false;\n      });\n    }\n    /**\n     * Register a `Component` with `videojs` given the name and the component.\n     *\n     * > NOTE: {@link Tech}s should not be registered as a `Component`. {@link Tech}s\n     *         should be registered using {@link Tech.registerTech} or\n     *         {@link videojs:videojs.registerTech}.\n     *\n     * > NOTE: This function can also be seen on videojs as\n     *         {@link videojs:videojs.registerComponent}.\n     *\n     * @param {string} name\n     *        The name of the `Component` to register.\n     *\n     * @param {Component} ComponentToRegister\n     *        The `Component` class to register.\n     *\n     * @return {Component}\n     *         The `Component` that was registered.\n     */\n    ;\n\n    Component.registerComponent = function registerComponent(name, ComponentToRegister) {\n      if (typeof name !== 'string' || !name) {\n        throw new Error(\"Illegal component name, \\\"\" + name + \"\\\"; must be a non-empty string.\");\n      }\n\n      var Tech = Component.getComponent('Tech'); // We need to make sure this check is only done if Tech has been registered.\n\n      var isTech = Tech && Tech.isTech(ComponentToRegister);\n      var isComp = Component === ComponentToRegister || Component.prototype.isPrototypeOf(ComponentToRegister.prototype);\n\n      if (isTech || !isComp) {\n        var reason;\n\n        if (isTech) {\n          reason = 'techs must be registered using Tech.registerTech()';\n        } else {\n          reason = 'must be a Component subclass';\n        }\n\n        throw new Error(\"Illegal component, \\\"\" + name + \"\\\"; \" + reason + \".\");\n      }\n\n      name = toTitleCase$1(name);\n\n      if (!Component.components_) {\n        Component.components_ = {};\n      }\n\n      var Player = Component.getComponent('Player');\n\n      if (name === 'Player' && Player && Player.players) {\n        var players = Player.players;\n        var playerNames = Object.keys(players); // If we have players that were disposed, then their name will still be\n        // in Players.players. So, we must loop through and verify that the value\n        // for each item is not null. This allows registration of the Player component\n        // after all players have been disposed or before any were created.\n\n        if (players && playerNames.length > 0 && playerNames.map(function (pname) {\n          return players[pname];\n        }).every(Boolean)) {\n          throw new Error('Can not register Player component after player has been created.');\n        }\n      }\n\n      Component.components_[name] = ComponentToRegister;\n      Component.components_[toLowerCase(name)] = ComponentToRegister;\n      return ComponentToRegister;\n    }\n    /**\n     * Get a `Component` based on the name it was registered with.\n     *\n     * @param {string} name\n     *        The Name of the component to get.\n     *\n     * @return {Component}\n     *         The `Component` that got registered under the given name.\n     */\n    ;\n\n    Component.getComponent = function getComponent(name) {\n      if (!name || !Component.components_) {\n        return;\n      }\n\n      return Component.components_[name];\n    };\n\n    return Component;\n  }();\n  /**\n   * Whether or not this component supports `requestAnimationFrame`.\n   *\n   * This is exposed primarily for testing purposes.\n   *\n   * @private\n   * @type {Boolean}\n   */\n\n\n  Component$1.prototype.supportsRaf_ = typeof window.requestAnimationFrame === 'function' && typeof window.cancelAnimationFrame === 'function';\n  Component$1.registerComponent('Component', Component$1);\n\n  function _assertThisInitialized(self) {\n    if (self === void 0) {\n      throw new ReferenceError(\"this hasn't been initialised - super() hasn't been called\");\n    }\n\n    return self;\n  }\n\n  var assertThisInitialized = _assertThisInitialized;\n\n  function _inheritsLoose(subClass, superClass) {\n    subClass.prototype = Object.create(superClass.prototype);\n    subClass.prototype.constructor = subClass;\n    subClass.__proto__ = superClass;\n  }\n\n  var inheritsLoose = _inheritsLoose;\n\n  /**\n   * @file time-ranges.js\n   * @module time-ranges\n   */\n\n  /**\n   * Returns the time for the specified index at the start or end\n   * of a TimeRange object.\n   *\n   * @typedef    {Function} TimeRangeIndex\n   *\n   * @param      {number} [index=0]\n   *             The range number to return the time for.\n   *\n   * @return     {number}\n   *             The time offset at the specified index.\n   *\n   * @deprecated The index argument must be provided.\n   *             In the future, leaving it out will throw an error.\n   */\n\n  /**\n   * An object that contains ranges of time.\n   *\n   * @typedef  {Object} TimeRange\n   *\n   * @property {number} length\n   *           The number of time ranges represented by this object.\n   *\n   * @property {module:time-ranges~TimeRangeIndex} start\n   *           Returns the time offset at which a specified time range begins.\n   *\n   * @property {module:time-ranges~TimeRangeIndex} end\n   *           Returns the time offset at which a specified time range ends.\n   *\n   * @see https://developer.mozilla.org/en-US/docs/Web/API/TimeRanges\n   */\n\n  /**\n   * Check if any of the time ranges are over the maximum index.\n   *\n   * @private\n   * @param   {string} fnName\n   *          The function name to use for logging\n   *\n   * @param   {number} index\n   *          The index to check\n   *\n   * @param   {number} maxIndex\n   *          The maximum possible index\n   *\n   * @throws  {Error} if the timeRanges provided are over the maxIndex\n   */\n  function rangeCheck(fnName, index, maxIndex) {\n    if (typeof index !== 'number' || index < 0 || index > maxIndex) {\n      throw new Error(\"Failed to execute '\" + fnName + \"' on 'TimeRanges': The index provided (\" + index + \") is non-numeric or out of bounds (0-\" + maxIndex + \").\");\n    }\n  }\n  /**\n   * Get the time for the specified index at the start or end\n   * of a TimeRange object.\n   *\n   * @private\n   * @param      {string} fnName\n   *             The function name to use for logging\n   *\n   * @param      {string} valueIndex\n   *             The property that should be used to get the time. should be\n   *             'start' or 'end'\n   *\n   * @param      {Array} ranges\n   *             An array of time ranges\n   *\n   * @param      {Array} [rangeIndex=0]\n   *             The index to start the search at\n   *\n   * @return     {number}\n   *             The time that offset at the specified index.\n   *\n   * @deprecated rangeIndex must be set to a value, in the future this will throw an error.\n   * @throws     {Error} if rangeIndex is more than the length of ranges\n   */\n\n\n  function getRange(fnName, valueIndex, ranges, rangeIndex) {\n    rangeCheck(fnName, rangeIndex, ranges.length - 1);\n    return ranges[rangeIndex][valueIndex];\n  }\n  /**\n   * Create a time range object given ranges of time.\n   *\n   * @private\n   * @param   {Array} [ranges]\n   *          An array of time ranges.\n   */\n\n\n  function createTimeRangesObj(ranges) {\n    var timeRangesObj;\n\n    if (ranges === undefined || ranges.length === 0) {\n      timeRangesObj = {\n        length: 0,\n        start: function start() {\n          throw new Error('This TimeRanges object is empty');\n        },\n        end: function end() {\n          throw new Error('This TimeRanges object is empty');\n        }\n      };\n    } else {\n      timeRangesObj = {\n        length: ranges.length,\n        start: getRange.bind(null, 'start', 0, ranges),\n        end: getRange.bind(null, 'end', 1, ranges)\n      };\n    }\n\n    if (window.Symbol && window.Symbol.iterator) {\n      timeRangesObj[window.Symbol.iterator] = function () {\n        return (ranges || []).values();\n      };\n    }\n\n    return timeRangesObj;\n  }\n  /**\n   * Create a `TimeRange` object which mimics an\n   * {@link https://developer.mozilla.org/en-US/docs/Web/API/TimeRanges|HTML5 TimeRanges instance}.\n   *\n   * @param {number|Array[]} start\n   *        The start of a single range (a number) or an array of ranges (an\n   *        array of arrays of two numbers each).\n   *\n   * @param {number} end\n   *        The end of a single range. Cannot be used with the array form of\n   *        the `start` argument.\n   */\n\n\n  function createTimeRanges(start, end) {\n    if (Array.isArray(start)) {\n      return createTimeRangesObj(start);\n    } else if (start === undefined || end === undefined) {\n      return createTimeRangesObj();\n    }\n\n    return createTimeRangesObj([[start, end]]);\n  }\n\n  /**\n   * @file buffer.js\n   * @module buffer\n   */\n  /**\n   * Compute the percentage of the media that has been buffered.\n   *\n   * @param {TimeRange} buffered\n   *        The current `TimeRange` object representing buffered time ranges\n   *\n   * @param {number} duration\n   *        Total duration of the media\n   *\n   * @return {number}\n   *         Percent buffered of the total duration in decimal form.\n   */\n\n  function bufferedPercent(buffered, duration) {\n    var bufferedDuration = 0;\n    var start;\n    var end;\n\n    if (!duration) {\n      return 0;\n    }\n\n    if (!buffered || !buffered.length) {\n      buffered = createTimeRanges(0, 0);\n    }\n\n    for (var i = 0; i < buffered.length; i++) {\n      start = buffered.start(i);\n      end = buffered.end(i); // buffered end can be bigger than duration by a very small fraction\n\n      if (end > duration) {\n        end = duration;\n      }\n\n      bufferedDuration += end - start;\n    }\n\n    return bufferedDuration / duration;\n  }\n\n  /**\n   * @file media-error.js\n   */\n  /**\n   * A Custom `MediaError` class which mimics the standard HTML5 `MediaError` class.\n   *\n   * @param {number|string|Object|MediaError} value\n   *        This can be of multiple types:\n   *        - number: should be a standard error code\n   *        - string: an error message (the code will be 0)\n   *        - Object: arbitrary properties\n   *        - `MediaError` (native): used to populate a video.js `MediaError` object\n   *        - `MediaError` (video.js): will return itself if it's already a\n   *          video.js `MediaError` object.\n   *\n   * @see [MediaError Spec]{@link https://dev.w3.org/html5/spec-author-view/video.html#mediaerror}\n   * @see [Encrypted MediaError Spec]{@link https://www.w3.org/TR/2013/WD-encrypted-media-20130510/#error-codes}\n   *\n   * @class MediaError\n   */\n\n  function MediaError(value) {\n    // Allow redundant calls to this constructor to avoid having `instanceof`\n    // checks peppered around the code.\n    if (value instanceof MediaError) {\n      return value;\n    }\n\n    if (typeof value === 'number') {\n      this.code = value;\n    } else if (typeof value === 'string') {\n      // default code is zero, so this is a custom error\n      this.message = value;\n    } else if (isObject$1(value)) {\n      // We assign the `code` property manually because native `MediaError` objects\n      // do not expose it as an own/enumerable property of the object.\n      if (typeof value.code === 'number') {\n        this.code = value.code;\n      }\n\n      assign(this, value);\n    }\n\n    if (!this.message) {\n      this.message = MediaError.defaultMessages[this.code] || '';\n    }\n  }\n  /**\n   * The error code that refers two one of the defined `MediaError` types\n   *\n   * @type {Number}\n   */\n\n\n  MediaError.prototype.code = 0;\n  /**\n   * An optional message that to show with the error. Message is not part of the HTML5\n   * video spec but allows for more informative custom errors.\n   *\n   * @type {String}\n   */\n\n  MediaError.prototype.message = '';\n  /**\n   * An optional status code that can be set by plugins to allow even more detail about\n   * the error. For example a plugin might provide a specific HTTP status code and an\n   * error message for that code. Then when the plugin gets that error this class will\n   * know how to display an error message for it. This allows a custom message to show\n   * up on the `Player` error overlay.\n   *\n   * @type {Array}\n   */\n\n  MediaError.prototype.status = null;\n  /**\n   * Errors indexed by the W3C standard. The order **CANNOT CHANGE**! See the\n   * specification listed under {@link MediaError} for more information.\n   *\n   * @enum {array}\n   * @readonly\n   * @property {string} 0 - MEDIA_ERR_CUSTOM\n   * @property {string} 1 - MEDIA_ERR_ABORTED\n   * @property {string} 2 - MEDIA_ERR_NETWORK\n   * @property {string} 3 - MEDIA_ERR_DECODE\n   * @property {string} 4 - MEDIA_ERR_SRC_NOT_SUPPORTED\n   * @property {string} 5 - MEDIA_ERR_ENCRYPTED\n   */\n\n  MediaError.errorTypes = ['MEDIA_ERR_CUSTOM', 'MEDIA_ERR_ABORTED', 'MEDIA_ERR_NETWORK', 'MEDIA_ERR_DECODE', 'MEDIA_ERR_SRC_NOT_SUPPORTED', 'MEDIA_ERR_ENCRYPTED'];\n  /**\n   * The default `MediaError` messages based on the {@link MediaError.errorTypes}.\n   *\n   * @type {Array}\n   * @constant\n   */\n\n  MediaError.defaultMessages = {\n    1: 'You aborted the media playback',\n    2: 'A network error caused the media download to fail part-way.',\n    3: 'The media playback was aborted due to a corruption problem or because the media used features your browser did not support.',\n    4: 'The media could not be loaded, either because the server or network failed or because the format is not supported.',\n    5: 'The media is encrypted and we do not have the keys to decrypt it.'\n  }; // Add types as properties on MediaError\n  // e.g. MediaError.MEDIA_ERR_SRC_NOT_SUPPORTED = 4;\n\n  for (var errNum = 0; errNum < MediaError.errorTypes.length; errNum++) {\n    MediaError[MediaError.errorTypes[errNum]] = errNum; // values should be accessible on both the class and instance\n\n    MediaError.prototype[MediaError.errorTypes[errNum]] = errNum;\n  } // jsdocs for instance/static members added above\n\n  var tuple = SafeParseTuple;\n\n  function SafeParseTuple(obj, reviver) {\n    var json;\n    var error = null;\n\n    try {\n      json = JSON.parse(obj, reviver);\n    } catch (err) {\n      error = err;\n    }\n\n    return [error, json];\n  }\n\n  /**\n   * Returns whether an object is `Promise`-like (i.e. has a `then` method).\n   *\n   * @param  {Object}  value\n   *         An object that may or may not be `Promise`-like.\n   *\n   * @return {boolean}\n   *         Whether or not the object is `Promise`-like.\n   */\n  function isPromise(value) {\n    return value !== undefined && value !== null && typeof value.then === 'function';\n  }\n  /**\n   * Silence a Promise-like object.\n   *\n   * This is useful for avoiding non-harmful, but potentially confusing \"uncaught\n   * play promise\" rejection error messages.\n   *\n   * @param  {Object} value\n   *         An object that may or may not be `Promise`-like.\n   */\n\n  function silencePromise(value) {\n    if (isPromise(value)) {\n      value.then(null, function (e) {});\n    }\n  }\n\n  /**\n   * @file text-track-list-converter.js Utilities for capturing text track state and\n   * re-creating tracks based on a capture.\n   *\n   * @module text-track-list-converter\n   */\n\n  /**\n   * Examine a single {@link TextTrack} and return a JSON-compatible javascript object that\n   * represents the {@link TextTrack}'s state.\n   *\n   * @param {TextTrack} track\n   *        The text track to query.\n   *\n   * @return {Object}\n   *         A serializable javascript representation of the TextTrack.\n   * @private\n   */\n  var trackToJson_ = function trackToJson_(track) {\n    var ret = ['kind', 'label', 'language', 'id', 'inBandMetadataTrackDispatchType', 'mode', 'src'].reduce(function (acc, prop, i) {\n      if (track[prop]) {\n        acc[prop] = track[prop];\n      }\n\n      return acc;\n    }, {\n      cues: track.cues && Array.prototype.map.call(track.cues, function (cue) {\n        return {\n          startTime: cue.startTime,\n          endTime: cue.endTime,\n          text: cue.text,\n          id: cue.id\n        };\n      })\n    });\n    return ret;\n  };\n  /**\n   * Examine a {@link Tech} and return a JSON-compatible javascript array that represents the\n   * state of all {@link TextTrack}s currently configured. The return array is compatible with\n   * {@link text-track-list-converter:jsonToTextTracks}.\n   *\n   * @param {Tech} tech\n   *        The tech object to query\n   *\n   * @return {Array}\n   *         A serializable javascript representation of the {@link Tech}s\n   *         {@link TextTrackList}.\n   */\n\n\n  var textTracksToJson = function textTracksToJson(tech) {\n    var trackEls = tech.$$('track');\n    var trackObjs = Array.prototype.map.call(trackEls, function (t) {\n      return t.track;\n    });\n    var tracks = Array.prototype.map.call(trackEls, function (trackEl) {\n      var json = trackToJson_(trackEl.track);\n\n      if (trackEl.src) {\n        json.src = trackEl.src;\n      }\n\n      return json;\n    });\n    return tracks.concat(Array.prototype.filter.call(tech.textTracks(), function (track) {\n      return trackObjs.indexOf(track) === -1;\n    }).map(trackToJson_));\n  };\n  /**\n   * Create a set of remote {@link TextTrack}s on a {@link Tech} based on an array of javascript\n   * object {@link TextTrack} representations.\n   *\n   * @param {Array} json\n   *        An array of `TextTrack` representation objects, like those that would be\n   *        produced by `textTracksToJson`.\n   *\n   * @param {Tech} tech\n   *        The `Tech` to create the `TextTrack`s on.\n   */\n\n\n  var jsonToTextTracks = function jsonToTextTracks(json, tech) {\n    json.forEach(function (track) {\n      var addedTrack = tech.addRemoteTextTrack(track).track;\n\n      if (!track.src && track.cues) {\n        track.cues.forEach(function (cue) {\n          return addedTrack.addCue(cue);\n        });\n      }\n    });\n    return tech.textTracks();\n  };\n\n  var textTrackConverter = {\n    textTracksToJson: textTracksToJson,\n    jsonToTextTracks: jsonToTextTracks,\n    trackToJson_: trackToJson_\n  };\n\n  var MODAL_CLASS_NAME = 'vjs-modal-dialog';\n  /**\n   * The `ModalDialog` displays over the video and its controls, which blocks\n   * interaction with the player until it is closed.\n   *\n   * Modal dialogs include a \"Close\" button and will close when that button\n   * is activated - or when ESC is pressed anywhere.\n   *\n   * @extends Component\n   */\n\n  var ModalDialog = /*#__PURE__*/function (_Component) {\n    inheritsLoose(ModalDialog, _Component);\n\n    /**\n     * Create an instance of this class.\n     *\n     * @param {Player} player\n     *        The `Player` that this class should be attached to.\n     *\n     * @param {Object} [options]\n     *        The key/value store of player options.\n     *\n     * @param {Mixed} [options.content=undefined]\n     *        Provide customized content for this modal.\n     *\n     * @param {string} [options.description]\n     *        A text description for the modal, primarily for accessibility.\n     *\n     * @param {boolean} [options.fillAlways=false]\n     *        Normally, modals are automatically filled only the first time\n     *        they open. This tells the modal to refresh its content\n     *        every time it opens.\n     *\n     * @param {string} [options.label]\n     *        A text label for the modal, primarily for accessibility.\n     *\n     * @param {boolean} [options.pauseOnOpen=true]\n     *        If `true`, playback will will be paused if playing when\n     *        the modal opens, and resumed when it closes.\n     *\n     * @param {boolean} [options.temporary=true]\n     *        If `true`, the modal can only be opened once; it will be\n     *        disposed as soon as it's closed.\n     *\n     * @param {boolean} [options.uncloseable=false]\n     *        If `true`, the user will not be able to close the modal\n     *        through the UI in the normal ways. Programmatic closing is\n     *        still possible.\n     */\n    function ModalDialog(player, options) {\n      var _this;\n\n      _this = _Component.call(this, player, options) || this;\n\n      _this.handleKeyDown_ = function (e) {\n        return _this.handleKeyDown(e);\n      };\n\n      _this.close_ = function (e) {\n        return _this.close(e);\n      };\n\n      _this.opened_ = _this.hasBeenOpened_ = _this.hasBeenFilled_ = false;\n\n      _this.closeable(!_this.options_.uncloseable);\n\n      _this.content(_this.options_.content); // Make sure the contentEl is defined AFTER any children are initialized\n      // because we only want the contents of the modal in the contentEl\n      // (not the UI elements like the close button).\n\n\n      _this.contentEl_ = createEl('div', {\n        className: MODAL_CLASS_NAME + \"-content\"\n      }, {\n        role: 'document'\n      });\n      _this.descEl_ = createEl('p', {\n        className: MODAL_CLASS_NAME + \"-description vjs-control-text\",\n        id: _this.el().getAttribute('aria-describedby')\n      });\n      textContent(_this.descEl_, _this.description());\n\n      _this.el_.appendChild(_this.descEl_);\n\n      _this.el_.appendChild(_this.contentEl_);\n\n      return _this;\n    }\n    /**\n     * Create the `ModalDialog`'s DOM element\n     *\n     * @return {Element}\n     *         The DOM element that gets created.\n     */\n\n\n    var _proto = ModalDialog.prototype;\n\n    _proto.createEl = function createEl() {\n      return _Component.prototype.createEl.call(this, 'div', {\n        className: this.buildCSSClass(),\n        tabIndex: -1\n      }, {\n        'aria-describedby': this.id() + \"_description\",\n        'aria-hidden': 'true',\n        'aria-label': this.label(),\n        'role': 'dialog'\n      });\n    };\n\n    _proto.dispose = function dispose() {\n      this.contentEl_ = null;\n      this.descEl_ = null;\n      this.previouslyActiveEl_ = null;\n\n      _Component.prototype.dispose.call(this);\n    }\n    /**\n     * Builds the default DOM `className`.\n     *\n     * @return {string}\n     *         The DOM `className` for this object.\n     */\n    ;\n\n    _proto.buildCSSClass = function buildCSSClass() {\n      return MODAL_CLASS_NAME + \" vjs-hidden \" + _Component.prototype.buildCSSClass.call(this);\n    }\n    /**\n     * Returns the label string for this modal. Primarily used for accessibility.\n     *\n     * @return {string}\n     *         the localized or raw label of this modal.\n     */\n    ;\n\n    _proto.label = function label() {\n      return this.localize(this.options_.label || 'Modal Window');\n    }\n    /**\n     * Returns the description string for this modal. Primarily used for\n     * accessibility.\n     *\n     * @return {string}\n     *         The localized or raw description of this modal.\n     */\n    ;\n\n    _proto.description = function description() {\n      var desc = this.options_.description || this.localize('This is a modal window.'); // Append a universal closeability message if the modal is closeable.\n\n      if (this.closeable()) {\n        desc += ' ' + this.localize('This modal can be closed by pressing the Escape key or activating the close button.');\n      }\n\n      return desc;\n    }\n    /**\n     * Opens the modal.\n     *\n     * @fires ModalDialog#beforemodalopen\n     * @fires ModalDialog#modalopen\n     */\n    ;\n\n    _proto.open = function open() {\n      if (!this.opened_) {\n        var player = this.player();\n        /**\n          * Fired just before a `ModalDialog` is opened.\n          *\n          * @event ModalDialog#beforemodalopen\n          * @type {EventTarget~Event}\n          */\n\n        this.trigger('beforemodalopen');\n        this.opened_ = true; // Fill content if the modal has never opened before and\n        // never been filled.\n\n        if (this.options_.fillAlways || !this.hasBeenOpened_ && !this.hasBeenFilled_) {\n          this.fill();\n        } // If the player was playing, pause it and take note of its previously\n        // playing state.\n\n\n        this.wasPlaying_ = !player.paused();\n\n        if (this.options_.pauseOnOpen && this.wasPlaying_) {\n          player.pause();\n        }\n\n        this.on('keydown', this.handleKeyDown_); // Hide controls and note if they were enabled.\n\n        this.hadControls_ = player.controls();\n        player.controls(false);\n        this.show();\n        this.conditionalFocus_();\n        this.el().setAttribute('aria-hidden', 'false');\n        /**\n          * Fired just after a `ModalDialog` is opened.\n          *\n          * @event ModalDialog#modalopen\n          * @type {EventTarget~Event}\n          */\n\n        this.trigger('modalopen');\n        this.hasBeenOpened_ = true;\n      }\n    }\n    /**\n     * If the `ModalDialog` is currently open or closed.\n     *\n     * @param  {boolean} [value]\n     *         If given, it will open (`true`) or close (`false`) the modal.\n     *\n     * @return {boolean}\n     *         the current open state of the modaldialog\n     */\n    ;\n\n    _proto.opened = function opened(value) {\n      if (typeof value === 'boolean') {\n        this[value ? 'open' : 'close']();\n      }\n\n      return this.opened_;\n    }\n    /**\n     * Closes the modal, does nothing if the `ModalDialog` is\n     * not open.\n     *\n     * @fires ModalDialog#beforemodalclose\n     * @fires ModalDialog#modalclose\n     */\n    ;\n\n    _proto.close = function close() {\n      if (!this.opened_) {\n        return;\n      }\n\n      var player = this.player();\n      /**\n        * Fired just before a `ModalDialog` is closed.\n        *\n        * @event ModalDialog#beforemodalclose\n        * @type {EventTarget~Event}\n        */\n\n      this.trigger('beforemodalclose');\n      this.opened_ = false;\n\n      if (this.wasPlaying_ && this.options_.pauseOnOpen) {\n        player.play();\n      }\n\n      this.off('keydown', this.handleKeyDown_);\n\n      if (this.hadControls_) {\n        player.controls(true);\n      }\n\n      this.hide();\n      this.el().setAttribute('aria-hidden', 'true');\n      /**\n        * Fired just after a `ModalDialog` is closed.\n        *\n        * @event ModalDialog#modalclose\n        * @type {EventTarget~Event}\n        */\n\n      this.trigger('modalclose');\n      this.conditionalBlur_();\n\n      if (this.options_.temporary) {\n        this.dispose();\n      }\n    }\n    /**\n     * Check to see if the `ModalDialog` is closeable via the UI.\n     *\n     * @param  {boolean} [value]\n     *         If given as a boolean, it will set the `closeable` option.\n     *\n     * @return {boolean}\n     *         Returns the final value of the closable option.\n     */\n    ;\n\n    _proto.closeable = function closeable(value) {\n      if (typeof value === 'boolean') {\n        var closeable = this.closeable_ = !!value;\n        var close = this.getChild('closeButton'); // If this is being made closeable and has no close button, add one.\n\n        if (closeable && !close) {\n          // The close button should be a child of the modal - not its\n          // content element, so temporarily change the content element.\n          var temp = this.contentEl_;\n          this.contentEl_ = this.el_;\n          close = this.addChild('closeButton', {\n            controlText: 'Close Modal Dialog'\n          });\n          this.contentEl_ = temp;\n          this.on(close, 'close', this.close_);\n        } // If this is being made uncloseable and has a close button, remove it.\n\n\n        if (!closeable && close) {\n          this.off(close, 'close', this.close_);\n          this.removeChild(close);\n          close.dispose();\n        }\n      }\n\n      return this.closeable_;\n    }\n    /**\n     * Fill the modal's content element with the modal's \"content\" option.\n     * The content element will be emptied before this change takes place.\n     */\n    ;\n\n    _proto.fill = function fill() {\n      this.fillWith(this.content());\n    }\n    /**\n     * Fill the modal's content element with arbitrary content.\n     * The content element will be emptied before this change takes place.\n     *\n     * @fires ModalDialog#beforemodalfill\n     * @fires ModalDialog#modalfill\n     *\n     * @param {Mixed} [content]\n     *        The same rules apply to this as apply to the `content` option.\n     */\n    ;\n\n    _proto.fillWith = function fillWith(content) {\n      var contentEl = this.contentEl();\n      var parentEl = contentEl.parentNode;\n      var nextSiblingEl = contentEl.nextSibling;\n      /**\n        * Fired just before a `ModalDialog` is filled with content.\n        *\n        * @event ModalDialog#beforemodalfill\n        * @type {EventTarget~Event}\n        */\n\n      this.trigger('beforemodalfill');\n      this.hasBeenFilled_ = true; // Detach the content element from the DOM before performing\n      // manipulation to avoid modifying the live DOM multiple times.\n\n      parentEl.removeChild(contentEl);\n      this.empty();\n      insertContent(contentEl, content);\n      /**\n       * Fired just after a `ModalDialog` is filled with content.\n       *\n       * @event ModalDialog#modalfill\n       * @type {EventTarget~Event}\n       */\n\n      this.trigger('modalfill'); // Re-inject the re-filled content element.\n\n      if (nextSiblingEl) {\n        parentEl.insertBefore(contentEl, nextSiblingEl);\n      } else {\n        parentEl.appendChild(contentEl);\n      } // make sure that the close button is last in the dialog DOM\n\n\n      var closeButton = this.getChild('closeButton');\n\n      if (closeButton) {\n        parentEl.appendChild(closeButton.el_);\n      }\n    }\n    /**\n     * Empties the content element. This happens anytime the modal is filled.\n     *\n     * @fires ModalDialog#beforemodalempty\n     * @fires ModalDialog#modalempty\n     */\n    ;\n\n    _proto.empty = function empty() {\n      /**\n      * Fired just before a `ModalDialog` is emptied.\n      *\n      * @event ModalDialog#beforemodalempty\n      * @type {EventTarget~Event}\n      */\n      this.trigger('beforemodalempty');\n      emptyEl(this.contentEl());\n      /**\n      * Fired just after a `ModalDialog` is emptied.\n      *\n      * @event ModalDialog#modalempty\n      * @type {EventTarget~Event}\n      */\n\n      this.trigger('modalempty');\n    }\n    /**\n     * Gets or sets the modal content, which gets normalized before being\n     * rendered into the DOM.\n     *\n     * This does not update the DOM or fill the modal, but it is called during\n     * that process.\n     *\n     * @param  {Mixed} [value]\n     *         If defined, sets the internal content value to be used on the\n     *         next call(s) to `fill`. This value is normalized before being\n     *         inserted. To \"clear\" the internal content value, pass `null`.\n     *\n     * @return {Mixed}\n     *         The current content of the modal dialog\n     */\n    ;\n\n    _proto.content = function content(value) {\n      if (typeof value !== 'undefined') {\n        this.content_ = value;\n      }\n\n      return this.content_;\n    }\n    /**\n     * conditionally focus the modal dialog if focus was previously on the player.\n     *\n     * @private\n     */\n    ;\n\n    _proto.conditionalFocus_ = function conditionalFocus_() {\n      var activeEl = document.activeElement;\n      var playerEl = this.player_.el_;\n      this.previouslyActiveEl_ = null;\n\n      if (playerEl.contains(activeEl) || playerEl === activeEl) {\n        this.previouslyActiveEl_ = activeEl;\n        this.focus();\n      }\n    }\n    /**\n     * conditionally blur the element and refocus the last focused element\n     *\n     * @private\n     */\n    ;\n\n    _proto.conditionalBlur_ = function conditionalBlur_() {\n      if (this.previouslyActiveEl_) {\n        this.previouslyActiveEl_.focus();\n        this.previouslyActiveEl_ = null;\n      }\n    }\n    /**\n     * Keydown handler. Attached when modal is focused.\n     *\n     * @listens keydown\n     */\n    ;\n\n    _proto.handleKeyDown = function handleKeyDown(event) {\n      // Do not allow keydowns to reach out of the modal dialog.\n      event.stopPropagation();\n\n      if (keycode.isEventKey(event, 'Escape') && this.closeable()) {\n        event.preventDefault();\n        this.close();\n        return;\n      } // exit early if it isn't a tab key\n\n\n      if (!keycode.isEventKey(event, 'Tab')) {\n        return;\n      }\n\n      var focusableEls = this.focusableEls_();\n      var activeEl = this.el_.querySelector(':focus');\n      var focusIndex;\n\n      for (var i = 0; i < focusableEls.length; i++) {\n        if (activeEl === focusableEls[i]) {\n          focusIndex = i;\n          break;\n        }\n      }\n\n      if (document.activeElement === this.el_) {\n        focusIndex = 0;\n      }\n\n      if (event.shiftKey && focusIndex === 0) {\n        focusableEls[focusableEls.length - 1].focus();\n        event.preventDefault();\n      } else if (!event.shiftKey && focusIndex === focusableEls.length - 1) {\n        focusableEls[0].focus();\n        event.preventDefault();\n      }\n    }\n    /**\n     * get all focusable elements\n     *\n     * @private\n     */\n    ;\n\n    _proto.focusableEls_ = function focusableEls_() {\n      var allChildren = this.el_.querySelectorAll('*');\n      return Array.prototype.filter.call(allChildren, function (child) {\n        return (child instanceof window.HTMLAnchorElement || child instanceof window.HTMLAreaElement) && child.hasAttribute('href') || (child instanceof window.HTMLInputElement || child instanceof window.HTMLSelectElement || child instanceof window.HTMLTextAreaElement || child instanceof window.HTMLButtonElement) && !child.hasAttribute('disabled') || child instanceof window.HTMLIFrameElement || child instanceof window.HTMLObjectElement || child instanceof window.HTMLEmbedElement || child.hasAttribute('tabindex') && child.getAttribute('tabindex') !== -1 || child.hasAttribute('contenteditable');\n      });\n    };\n\n    return ModalDialog;\n  }(Component$1);\n  /**\n   * Default options for `ModalDialog` default options.\n   *\n   * @type {Object}\n   * @private\n   */\n\n\n  ModalDialog.prototype.options_ = {\n    pauseOnOpen: true,\n    temporary: true\n  };\n  Component$1.registerComponent('ModalDialog', ModalDialog);\n\n  /**\n   * Common functionaliy between {@link TextTrackList}, {@link AudioTrackList}, and\n   * {@link VideoTrackList}\n   *\n   * @extends EventTarget\n   */\n\n  var TrackList = /*#__PURE__*/function (_EventTarget) {\n    inheritsLoose(TrackList, _EventTarget);\n\n    /**\n     * Create an instance of this class\n     *\n     * @param {Track[]} tracks\n     *        A list of tracks to initialize the list with.\n     *\n     * @abstract\n     */\n    function TrackList(tracks) {\n      var _this;\n\n      if (tracks === void 0) {\n        tracks = [];\n      }\n\n      _this = _EventTarget.call(this) || this;\n      _this.tracks_ = [];\n      /**\n       * @memberof TrackList\n       * @member {number} length\n       *         The current number of `Track`s in the this Trackist.\n       * @instance\n       */\n\n      Object.defineProperty(assertThisInitialized(_this), 'length', {\n        get: function get() {\n          return this.tracks_.length;\n        }\n      });\n\n      for (var i = 0; i < tracks.length; i++) {\n        _this.addTrack(tracks[i]);\n      }\n\n      return _this;\n    }\n    /**\n     * Add a {@link Track} to the `TrackList`\n     *\n     * @param {Track} track\n     *        The audio, video, or text track to add to the list.\n     *\n     * @fires TrackList#addtrack\n     */\n\n\n    var _proto = TrackList.prototype;\n\n    _proto.addTrack = function addTrack(track) {\n      var _this2 = this;\n\n      var index = this.tracks_.length;\n\n      if (!('' + index in this)) {\n        Object.defineProperty(this, index, {\n          get: function get() {\n            return this.tracks_[index];\n          }\n        });\n      } // Do not add duplicate tracks\n\n\n      if (this.tracks_.indexOf(track) === -1) {\n        this.tracks_.push(track);\n        /**\n         * Triggered when a track is added to a track list.\n         *\n         * @event TrackList#addtrack\n         * @type {EventTarget~Event}\n         * @property {Track} track\n         *           A reference to track that was added.\n         */\n\n        this.trigger({\n          track: track,\n          type: 'addtrack',\n          target: this\n        });\n      }\n      /**\n       * Triggered when a track label is changed.\n       *\n       * @event TrackList#addtrack\n       * @type {EventTarget~Event}\n       * @property {Track} track\n       *           A reference to track that was added.\n       */\n\n\n      track.labelchange_ = function () {\n        _this2.trigger({\n          track: track,\n          type: 'labelchange',\n          target: _this2\n        });\n      };\n\n      if (isEvented(track)) {\n        track.addEventListener('labelchange', track.labelchange_);\n      }\n    }\n    /**\n     * Remove a {@link Track} from the `TrackList`\n     *\n     * @param {Track} rtrack\n     *        The audio, video, or text track to remove from the list.\n     *\n     * @fires TrackList#removetrack\n     */\n    ;\n\n    _proto.removeTrack = function removeTrack(rtrack) {\n      var track;\n\n      for (var i = 0, l = this.length; i < l; i++) {\n        if (this[i] === rtrack) {\n          track = this[i];\n\n          if (track.off) {\n            track.off();\n          }\n\n          this.tracks_.splice(i, 1);\n          break;\n        }\n      }\n\n      if (!track) {\n        return;\n      }\n      /**\n       * Triggered when a track is removed from track list.\n       *\n       * @event TrackList#removetrack\n       * @type {EventTarget~Event}\n       * @property {Track} track\n       *           A reference to track that was removed.\n       */\n\n\n      this.trigger({\n        track: track,\n        type: 'removetrack',\n        target: this\n      });\n    }\n    /**\n     * Get a Track from the TrackList by a tracks id\n     *\n     * @param {string} id - the id of the track to get\n     * @method getTrackById\n     * @return {Track}\n     * @private\n     */\n    ;\n\n    _proto.getTrackById = function getTrackById(id) {\n      var result = null;\n\n      for (var i = 0, l = this.length; i < l; i++) {\n        var track = this[i];\n\n        if (track.id === id) {\n          result = track;\n          break;\n        }\n      }\n\n      return result;\n    };\n\n    return TrackList;\n  }(EventTarget$2);\n  /**\n   * Triggered when a different track is selected/enabled.\n   *\n   * @event TrackList#change\n   * @type {EventTarget~Event}\n   */\n\n  /**\n   * Events that can be called with on + eventName. See {@link EventHandler}.\n   *\n   * @property {Object} TrackList#allowedEvents_\n   * @private\n   */\n\n\n  TrackList.prototype.allowedEvents_ = {\n    change: 'change',\n    addtrack: 'addtrack',\n    removetrack: 'removetrack',\n    labelchange: 'labelchange'\n  }; // emulate attribute EventHandler support to allow for feature detection\n\n  for (var event in TrackList.prototype.allowedEvents_) {\n    TrackList.prototype['on' + event] = null;\n  }\n\n  /**\n   * Anywhere we call this function we diverge from the spec\n   * as we only support one enabled audiotrack at a time\n   *\n   * @param {AudioTrackList} list\n   *        list to work on\n   *\n   * @param {AudioTrack} track\n   *        The track to skip\n   *\n   * @private\n   */\n\n  var disableOthers$1 = function disableOthers(list, track) {\n    for (var i = 0; i < list.length; i++) {\n      if (!Object.keys(list[i]).length || track.id === list[i].id) {\n        continue;\n      } // another audio track is enabled, disable it\n\n\n      list[i].enabled = false;\n    }\n  };\n  /**\n   * The current list of {@link AudioTrack} for a media file.\n   *\n   * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#audiotracklist}\n   * @extends TrackList\n   */\n\n\n  var AudioTrackList = /*#__PURE__*/function (_TrackList) {\n    inheritsLoose(AudioTrackList, _TrackList);\n\n    /**\n     * Create an instance of this class.\n     *\n     * @param {AudioTrack[]} [tracks=[]]\n     *        A list of `AudioTrack` to instantiate the list with.\n     */\n    function AudioTrackList(tracks) {\n      var _this;\n\n      if (tracks === void 0) {\n        tracks = [];\n      }\n\n      // make sure only 1 track is enabled\n      // sorted from last index to first index\n      for (var i = tracks.length - 1; i >= 0; i--) {\n        if (tracks[i].enabled) {\n          disableOthers$1(tracks, tracks[i]);\n          break;\n        }\n      }\n\n      _this = _TrackList.call(this, tracks) || this;\n      _this.changing_ = false;\n      return _this;\n    }\n    /**\n     * Add an {@link AudioTrack} to the `AudioTrackList`.\n     *\n     * @param {AudioTrack} track\n     *        The AudioTrack to add to the list\n     *\n     * @fires TrackList#addtrack\n     */\n\n\n    var _proto = AudioTrackList.prototype;\n\n    _proto.addTrack = function addTrack(track) {\n      var _this2 = this;\n\n      if (track.enabled) {\n        disableOthers$1(this, track);\n      }\n\n      _TrackList.prototype.addTrack.call(this, track); // native tracks don't have this\n\n\n      if (!track.addEventListener) {\n        return;\n      }\n\n      track.enabledChange_ = function () {\n        // when we are disabling other tracks (since we don't support\n        // more than one track at a time) we will set changing_\n        // to true so that we don't trigger additional change events\n        if (_this2.changing_) {\n          return;\n        }\n\n        _this2.changing_ = true;\n        disableOthers$1(_this2, track);\n        _this2.changing_ = false;\n\n        _this2.trigger('change');\n      };\n      /**\n       * @listens AudioTrack#enabledchange\n       * @fires TrackList#change\n       */\n\n\n      track.addEventListener('enabledchange', track.enabledChange_);\n    };\n\n    _proto.removeTrack = function removeTrack(rtrack) {\n      _TrackList.prototype.removeTrack.call(this, rtrack);\n\n      if (rtrack.removeEventListener && rtrack.enabledChange_) {\n        rtrack.removeEventListener('enabledchange', rtrack.enabledChange_);\n        rtrack.enabledChange_ = null;\n      }\n    };\n\n    return AudioTrackList;\n  }(TrackList);\n\n  /**\n   * Un-select all other {@link VideoTrack}s that are selected.\n   *\n   * @param {VideoTrackList} list\n   *        list to work on\n   *\n   * @param {VideoTrack} track\n   *        The track to skip\n   *\n   * @private\n   */\n\n  var disableOthers = function disableOthers(list, track) {\n    for (var i = 0; i < list.length; i++) {\n      if (!Object.keys(list[i]).length || track.id === list[i].id) {\n        continue;\n      } // another video track is enabled, disable it\n\n\n      list[i].selected = false;\n    }\n  };\n  /**\n   * The current list of {@link VideoTrack} for a video.\n   *\n   * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#videotracklist}\n   * @extends TrackList\n   */\n\n\n  var VideoTrackList = /*#__PURE__*/function (_TrackList) {\n    inheritsLoose(VideoTrackList, _TrackList);\n\n    /**\n     * Create an instance of this class.\n     *\n     * @param {VideoTrack[]} [tracks=[]]\n     *        A list of `VideoTrack` to instantiate the list with.\n     */\n    function VideoTrackList(tracks) {\n      var _this;\n\n      if (tracks === void 0) {\n        tracks = [];\n      }\n\n      // make sure only 1 track is enabled\n      // sorted from last index to first index\n      for (var i = tracks.length - 1; i >= 0; i--) {\n        if (tracks[i].selected) {\n          disableOthers(tracks, tracks[i]);\n          break;\n        }\n      }\n\n      _this = _TrackList.call(this, tracks) || this;\n      _this.changing_ = false;\n      /**\n       * @member {number} VideoTrackList#selectedIndex\n       *         The current index of the selected {@link VideoTrack`}.\n       */\n\n      Object.defineProperty(assertThisInitialized(_this), 'selectedIndex', {\n        get: function get() {\n          for (var _i = 0; _i < this.length; _i++) {\n            if (this[_i].selected) {\n              return _i;\n            }\n          }\n\n          return -1;\n        },\n        set: function set() {}\n      });\n      return _this;\n    }\n    /**\n     * Add a {@link VideoTrack} to the `VideoTrackList`.\n     *\n     * @param {VideoTrack} track\n     *        The VideoTrack to add to the list\n     *\n     * @fires TrackList#addtrack\n     */\n\n\n    var _proto = VideoTrackList.prototype;\n\n    _proto.addTrack = function addTrack(track) {\n      var _this2 = this;\n\n      if (track.selected) {\n        disableOthers(this, track);\n      }\n\n      _TrackList.prototype.addTrack.call(this, track); // native tracks don't have this\n\n\n      if (!track.addEventListener) {\n        return;\n      }\n\n      track.selectedChange_ = function () {\n        if (_this2.changing_) {\n          return;\n        }\n\n        _this2.changing_ = true;\n        disableOthers(_this2, track);\n        _this2.changing_ = false;\n\n        _this2.trigger('change');\n      };\n      /**\n       * @listens VideoTrack#selectedchange\n       * @fires TrackList#change\n       */\n\n\n      track.addEventListener('selectedchange', track.selectedChange_);\n    };\n\n    _proto.removeTrack = function removeTrack(rtrack) {\n      _TrackList.prototype.removeTrack.call(this, rtrack);\n\n      if (rtrack.removeEventListener && rtrack.selectedChange_) {\n        rtrack.removeEventListener('selectedchange', rtrack.selectedChange_);\n        rtrack.selectedChange_ = null;\n      }\n    };\n\n    return VideoTrackList;\n  }(TrackList);\n\n  /**\n   * The current list of {@link TextTrack} for a media file.\n   *\n   * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#texttracklist}\n   * @extends TrackList\n   */\n\n  var TextTrackList = /*#__PURE__*/function (_TrackList) {\n    inheritsLoose(TextTrackList, _TrackList);\n\n    function TextTrackList() {\n      return _TrackList.apply(this, arguments) || this;\n    }\n\n    var _proto = TextTrackList.prototype;\n\n    /**\n     * Add a {@link TextTrack} to the `TextTrackList`\n     *\n     * @param {TextTrack} track\n     *        The text track to add to the list.\n     *\n     * @fires TrackList#addtrack\n     */\n    _proto.addTrack = function addTrack(track) {\n      var _this = this;\n\n      _TrackList.prototype.addTrack.call(this, track);\n\n      if (!this.queueChange_) {\n        this.queueChange_ = function () {\n          return _this.queueTrigger('change');\n        };\n      }\n\n      if (!this.triggerSelectedlanguagechange) {\n        this.triggerSelectedlanguagechange_ = function () {\n          return _this.trigger('selectedlanguagechange');\n        };\n      }\n      /**\n       * @listens TextTrack#modechange\n       * @fires TrackList#change\n       */\n\n\n      track.addEventListener('modechange', this.queueChange_);\n      var nonLanguageTextTrackKind = ['metadata', 'chapters'];\n\n      if (nonLanguageTextTrackKind.indexOf(track.kind) === -1) {\n        track.addEventListener('modechange', this.triggerSelectedlanguagechange_);\n      }\n    };\n\n    _proto.removeTrack = function removeTrack(rtrack) {\n      _TrackList.prototype.removeTrack.call(this, rtrack); // manually remove the event handlers we added\n\n\n      if (rtrack.removeEventListener) {\n        if (this.queueChange_) {\n          rtrack.removeEventListener('modechange', this.queueChange_);\n        }\n\n        if (this.selectedlanguagechange_) {\n          rtrack.removeEventListener('modechange', this.triggerSelectedlanguagechange_);\n        }\n      }\n    };\n\n    return TextTrackList;\n  }(TrackList);\n\n  /**\n   * @file html-track-element-list.js\n   */\n\n  /**\n   * The current list of {@link HtmlTrackElement}s.\n   */\n  var HtmlTrackElementList = /*#__PURE__*/function () {\n    /**\n     * Create an instance of this class.\n     *\n     * @param {HtmlTrackElement[]} [tracks=[]]\n     *        A list of `HtmlTrackElement` to instantiate the list with.\n     */\n    function HtmlTrackElementList(trackElements) {\n      if (trackElements === void 0) {\n        trackElements = [];\n      }\n\n      this.trackElements_ = [];\n      /**\n       * @memberof HtmlTrackElementList\n       * @member {number} length\n       *         The current number of `Track`s in the this Trackist.\n       * @instance\n       */\n\n      Object.defineProperty(this, 'length', {\n        get: function get() {\n          return this.trackElements_.length;\n        }\n      });\n\n      for (var i = 0, length = trackElements.length; i < length; i++) {\n        this.addTrackElement_(trackElements[i]);\n      }\n    }\n    /**\n     * Add an {@link HtmlTrackElement} to the `HtmlTrackElementList`\n     *\n     * @param {HtmlTrackElement} trackElement\n     *        The track element to add to the list.\n     *\n     * @private\n     */\n\n\n    var _proto = HtmlTrackElementList.prototype;\n\n    _proto.addTrackElement_ = function addTrackElement_(trackElement) {\n      var index = this.trackElements_.length;\n\n      if (!('' + index in this)) {\n        Object.defineProperty(this, index, {\n          get: function get() {\n            return this.trackElements_[index];\n          }\n        });\n      } // Do not add duplicate elements\n\n\n      if (this.trackElements_.indexOf(trackElement) === -1) {\n        this.trackElements_.push(trackElement);\n      }\n    }\n    /**\n     * Get an {@link HtmlTrackElement} from the `HtmlTrackElementList` given an\n     * {@link TextTrack}.\n     *\n     * @param {TextTrack} track\n     *        The track associated with a track element.\n     *\n     * @return {HtmlTrackElement|undefined}\n     *         The track element that was found or undefined.\n     *\n     * @private\n     */\n    ;\n\n    _proto.getTrackElementByTrack_ = function getTrackElementByTrack_(track) {\n      var trackElement_;\n\n      for (var i = 0, length = this.trackElements_.length; i < length; i++) {\n        if (track === this.trackElements_[i].track) {\n          trackElement_ = this.trackElements_[i];\n          break;\n        }\n      }\n\n      return trackElement_;\n    }\n    /**\n     * Remove a {@link HtmlTrackElement} from the `HtmlTrackElementList`\n     *\n     * @param {HtmlTrackElement} trackElement\n     *        The track element to remove from the list.\n     *\n     * @private\n     */\n    ;\n\n    _proto.removeTrackElement_ = function removeTrackElement_(trackElement) {\n      for (var i = 0, length = this.trackElements_.length; i < length; i++) {\n        if (trackElement === this.trackElements_[i]) {\n          if (this.trackElements_[i].track && typeof this.trackElements_[i].track.off === 'function') {\n            this.trackElements_[i].track.off();\n          }\n\n          if (typeof this.trackElements_[i].off === 'function') {\n            this.trackElements_[i].off();\n          }\n\n          this.trackElements_.splice(i, 1);\n          break;\n        }\n      }\n    };\n\n    return HtmlTrackElementList;\n  }();\n\n  /**\n   * @file text-track-cue-list.js\n   */\n\n  /**\n   * @typedef {Object} TextTrackCueList~TextTrackCue\n   *\n   * @property {string} id\n   *           The unique id for this text track cue\n   *\n   * @property {number} startTime\n   *           The start time for this text track cue\n   *\n   * @property {number} endTime\n   *           The end time for this text track cue\n   *\n   * @property {boolean} pauseOnExit\n   *           Pause when the end time is reached if true.\n   *\n   * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#texttrackcue}\n   */\n\n  /**\n   * A List of TextTrackCues.\n   *\n   * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#texttrackcuelist}\n   */\n  var TextTrackCueList = /*#__PURE__*/function () {\n    /**\n     * Create an instance of this class..\n     *\n     * @param {Array} cues\n     *        A list of cues to be initialized with\n     */\n    function TextTrackCueList(cues) {\n      TextTrackCueList.prototype.setCues_.call(this, cues);\n      /**\n       * @memberof TextTrackCueList\n       * @member {number} length\n       *         The current number of `TextTrackCue`s in the TextTrackCueList.\n       * @instance\n       */\n\n      Object.defineProperty(this, 'length', {\n        get: function get() {\n          return this.length_;\n        }\n      });\n    }\n    /**\n     * A setter for cues in this list. Creates getters\n     * an an index for the cues.\n     *\n     * @param {Array} cues\n     *        An array of cues to set\n     *\n     * @private\n     */\n\n\n    var _proto = TextTrackCueList.prototype;\n\n    _proto.setCues_ = function setCues_(cues) {\n      var oldLength = this.length || 0;\n      var i = 0;\n      var l = cues.length;\n      this.cues_ = cues;\n      this.length_ = cues.length;\n\n      var defineProp = function defineProp(index) {\n        if (!('' + index in this)) {\n          Object.defineProperty(this, '' + index, {\n            get: function get() {\n              return this.cues_[index];\n            }\n          });\n        }\n      };\n\n      if (oldLength < l) {\n        i = oldLength;\n\n        for (; i < l; i++) {\n          defineProp.call(this, i);\n        }\n      }\n    }\n    /**\n     * Get a `TextTrackCue` that is currently in the `TextTrackCueList` by id.\n     *\n     * @param {string} id\n     *        The id of the cue that should be searched for.\n     *\n     * @return {TextTrackCueList~TextTrackCue|null}\n     *         A single cue or null if none was found.\n     */\n    ;\n\n    _proto.getCueById = function getCueById(id) {\n      var result = null;\n\n      for (var i = 0, l = this.length; i < l; i++) {\n        var cue = this[i];\n\n        if (cue.id === id) {\n          result = cue;\n          break;\n        }\n      }\n\n      return result;\n    };\n\n    return TextTrackCueList;\n  }();\n\n  /**\n   * @file track-kinds.js\n   */\n\n  /**\n   * All possible `VideoTrackKind`s\n   *\n   * @see https://html.spec.whatwg.org/multipage/embedded-content.html#dom-videotrack-kind\n   * @typedef VideoTrack~Kind\n   * @enum\n   */\n  var VideoTrackKind = {\n    alternative: 'alternative',\n    captions: 'captions',\n    main: 'main',\n    sign: 'sign',\n    subtitles: 'subtitles',\n    commentary: 'commentary'\n  };\n  /**\n   * All possible `AudioTrackKind`s\n   *\n   * @see https://html.spec.whatwg.org/multipage/embedded-content.html#dom-audiotrack-kind\n   * @typedef AudioTrack~Kind\n   * @enum\n   */\n\n  var AudioTrackKind = {\n    'alternative': 'alternative',\n    'descriptions': 'descriptions',\n    'main': 'main',\n    'main-desc': 'main-desc',\n    'translation': 'translation',\n    'commentary': 'commentary'\n  };\n  /**\n   * All possible `TextTrackKind`s\n   *\n   * @see https://html.spec.whatwg.org/multipage/embedded-content.html#dom-texttrack-kind\n   * @typedef TextTrack~Kind\n   * @enum\n   */\n\n  var TextTrackKind = {\n    subtitles: 'subtitles',\n    captions: 'captions',\n    descriptions: 'descriptions',\n    chapters: 'chapters',\n    metadata: 'metadata'\n  };\n  /**\n   * All possible `TextTrackMode`s\n   *\n   * @see https://html.spec.whatwg.org/multipage/embedded-content.html#texttrackmode\n   * @typedef TextTrack~Mode\n   * @enum\n   */\n\n  var TextTrackMode = {\n    disabled: 'disabled',\n    hidden: 'hidden',\n    showing: 'showing'\n  };\n\n  /**\n   * A Track class that contains all of the common functionality for {@link AudioTrack},\n   * {@link VideoTrack}, and {@link TextTrack}.\n   *\n   * > Note: This class should not be used directly\n   *\n   * @see {@link https://html.spec.whatwg.org/multipage/embedded-content.html}\n   * @extends EventTarget\n   * @abstract\n   */\n\n  var Track = /*#__PURE__*/function (_EventTarget) {\n    inheritsLoose(Track, _EventTarget);\n\n    /**\n     * Create an instance of this class.\n     *\n     * @param {Object} [options={}]\n     *        Object of option names and values\n     *\n     * @param {string} [options.kind='']\n     *        A valid kind for the track type you are creating.\n     *\n     * @param {string} [options.id='vjs_track_' + Guid.newGUID()]\n     *        A unique id for this AudioTrack.\n     *\n     * @param {string} [options.label='']\n     *        The menu label for this track.\n     *\n     * @param {string} [options.language='']\n     *        A valid two character language code.\n     *\n     * @abstract\n     */\n    function Track(options) {\n      var _this;\n\n      if (options === void 0) {\n        options = {};\n      }\n\n      _this = _EventTarget.call(this) || this;\n      var trackProps = {\n        id: options.id || 'vjs_track_' + newGUID(),\n        kind: options.kind || '',\n        language: options.language || ''\n      };\n      var label = options.label || '';\n      /**\n       * @memberof Track\n       * @member {string} id\n       *         The id of this track. Cannot be changed after creation.\n       * @instance\n       *\n       * @readonly\n       */\n\n      /**\n       * @memberof Track\n       * @member {string} kind\n       *         The kind of track that this is. Cannot be changed after creation.\n       * @instance\n       *\n       * @readonly\n       */\n\n      /**\n       * @memberof Track\n       * @member {string} language\n       *         The two letter language code for this track. Cannot be changed after\n       *         creation.\n       * @instance\n       *\n       * @readonly\n       */\n\n      var _loop = function _loop(key) {\n        Object.defineProperty(assertThisInitialized(_this), key, {\n          get: function get() {\n            return trackProps[key];\n          },\n          set: function set() {}\n        });\n      };\n\n      for (var key in trackProps) {\n        _loop(key);\n      }\n      /**\n       * @memberof Track\n       * @member {string} label\n       *         The label of this track. Cannot be changed after creation.\n       * @instance\n       *\n       * @fires Track#labelchange\n       */\n\n\n      Object.defineProperty(assertThisInitialized(_this), 'label', {\n        get: function get() {\n          return label;\n        },\n        set: function set(newLabel) {\n          if (newLabel !== label) {\n            label = newLabel;\n            /**\n             * An event that fires when label changes on this track.\n             *\n             * > Note: This is not part of the spec!\n             *\n             * @event Track#labelchange\n             * @type {EventTarget~Event}\n             */\n\n            this.trigger('labelchange');\n          }\n        }\n      });\n      return _this;\n    }\n\n    return Track;\n  }(EventTarget$2);\n\n  /**\n   * @file url.js\n   * @module url\n   */\n\n  /**\n   * @typedef {Object} url:URLObject\n   *\n   * @property {string} protocol\n   *           The protocol of the url that was parsed.\n   *\n   * @property {string} hostname\n   *           The hostname of the url that was parsed.\n   *\n   * @property {string} port\n   *           The port of the url that was parsed.\n   *\n   * @property {string} pathname\n   *           The pathname of the url that was parsed.\n   *\n   * @property {string} search\n   *           The search query of the url that was parsed.\n   *\n   * @property {string} hash\n   *           The hash of the url that was parsed.\n   *\n   * @property {string} host\n   *           The host of the url that was parsed.\n   */\n\n  /**\n   * Resolve and parse the elements of a URL.\n   *\n   * @function\n   * @param    {String} url\n   *           The url to parse\n   *\n   * @return   {url:URLObject}\n   *           An object of url details\n   */\n  var parseUrl = function parseUrl(url) {\n    // This entire method can be replace with URL once we are able to drop IE11\n    var props = ['protocol', 'hostname', 'port', 'pathname', 'search', 'hash', 'host']; // add the url to an anchor and let the browser parse the URL\n\n    var a = document.createElement('a');\n    a.href = url; // Copy the specific URL properties to a new object\n    // This is also needed for IE because the anchor loses its\n    // properties when it's removed from the dom\n\n    var details = {};\n\n    for (var i = 0; i < props.length; i++) {\n      details[props[i]] = a[props[i]];\n    } // IE adds the port to the host property unlike everyone else. If\n    // a port identifier is added for standard ports, strip it.\n\n\n    if (details.protocol === 'http:') {\n      details.host = details.host.replace(/:80$/, '');\n    }\n\n    if (details.protocol === 'https:') {\n      details.host = details.host.replace(/:443$/, '');\n    }\n\n    if (!details.protocol) {\n      details.protocol = window.location.protocol;\n    }\n    /* istanbul ignore if */\n\n\n    if (!details.host) {\n      details.host = window.location.host;\n    }\n\n    return details;\n  };\n  /**\n   * Get absolute version of relative URL. Used to tell Flash the correct URL.\n   *\n   * @function\n   * @param    {string} url\n   *           URL to make absolute\n   *\n   * @return   {string}\n   *           Absolute URL\n   *\n   * @see      http://stackoverflow.com/questions/470832/getting-an-absolute-url-from-a-relative-one-ie6-issue\n   */\n\n  var getAbsoluteURL = function getAbsoluteURL(url) {\n    // Check if absolute URL\n    if (!url.match(/^https?:\\/\\//)) {\n      // Convert to absolute URL. Flash hosted off-site needs an absolute URL.\n      // add the url to an anchor and let the browser parse the URL\n      var a = document.createElement('a');\n      a.href = url;\n      url = a.href;\n    }\n\n    return url;\n  };\n  /**\n   * Returns the extension of the passed file name. It will return an empty string\n   * if passed an invalid path.\n   *\n   * @function\n   * @param    {string} path\n   *           The fileName path like '/path/to/file.mp4'\n   *\n   * @return  {string}\n   *           The extension in lower case or an empty string if no\n   *           extension could be found.\n   */\n\n  var getFileExtension = function getFileExtension(path) {\n    if (typeof path === 'string') {\n      var splitPathRe = /^(\\/?)([\\s\\S]*?)((?:\\.{1,2}|[^\\/]+?)(\\.([^\\.\\/\\?]+)))(?:[\\/]*|[\\?].*)$/;\n      var pathParts = splitPathRe.exec(path);\n\n      if (pathParts) {\n        return pathParts.pop().toLowerCase();\n      }\n    }\n\n    return '';\n  };\n  /**\n   * Returns whether the url passed is a cross domain request or not.\n   *\n   * @function\n   * @param    {string} url\n   *           The url to check.\n   *\n   * @param    {Object} [winLoc]\n   *           the domain to check the url against, defaults to window.location\n   *\n   * @param    {string} [winLoc.protocol]\n   *           The window location protocol defaults to window.location.protocol\n   *\n   * @param    {string} [winLoc.host]\n   *           The window location host defaults to window.location.host\n   *\n   * @return   {boolean}\n   *           Whether it is a cross domain request or not.\n   */\n\n  var isCrossOrigin = function isCrossOrigin(url, winLoc) {\n    if (winLoc === void 0) {\n      winLoc = window.location;\n    }\n\n    var urlInfo = parseUrl(url); // IE8 protocol relative urls will return ':' for protocol\n\n    var srcProtocol = urlInfo.protocol === ':' ? winLoc.protocol : urlInfo.protocol; // Check if url is for another domain/origin\n    // IE8 doesn't know location.origin, so we won't rely on it here\n\n    var crossOrigin = srcProtocol + urlInfo.host !== winLoc.protocol + winLoc.host;\n    return crossOrigin;\n  };\n\n  var Url = /*#__PURE__*/Object.freeze({\n    __proto__: null,\n    parseUrl: parseUrl,\n    getAbsoluteURL: getAbsoluteURL,\n    getFileExtension: getFileExtension,\n    isCrossOrigin: isCrossOrigin\n  });\n\n  var win;\n\n  if (typeof window !== \"undefined\") {\n    win = window;\n  } else if (typeof commonjsGlobal !== \"undefined\") {\n    win = commonjsGlobal;\n  } else if (typeof self !== \"undefined\") {\n    win = self;\n  } else {\n    win = {};\n  }\n\n  var window_1 = win;\n\n  var isFunction_1 = isFunction;\n  var toString = Object.prototype.toString;\n\n  function isFunction(fn) {\n    if (!fn) {\n      return false;\n    }\n\n    var string = toString.call(fn);\n    return string === '[object Function]' || typeof fn === 'function' && string !== '[object RegExp]' || typeof window !== 'undefined' && ( // IE8 and below\n    fn === window.setTimeout || fn === window.alert || fn === window.confirm || fn === window.prompt);\n  }\n\n  var httpResponseHandler = function httpResponseHandler(callback, decodeResponseBody) {\n    if (decodeResponseBody === void 0) {\n      decodeResponseBody = false;\n    }\n\n    return function (err, response, responseBody) {\n      // if the XHR failed, return that error\n      if (err) {\n        callback(err);\n        return;\n      } // if the HTTP status code is 4xx or 5xx, the request also failed\n\n\n      if (response.statusCode >= 400 && response.statusCode <= 599) {\n        var cause = responseBody;\n\n        if (decodeResponseBody) {\n          if (window_1.TextDecoder) {\n            var charset = getCharset(response.headers && response.headers['content-type']);\n\n            try {\n              cause = new TextDecoder(charset).decode(responseBody);\n            } catch (e) {}\n          } else {\n            cause = String.fromCharCode.apply(null, new Uint8Array(responseBody));\n          }\n        }\n\n        callback({\n          cause: cause\n        });\n        return;\n      } // otherwise, request succeeded\n\n\n      callback(null, responseBody);\n    };\n  };\n\n  function getCharset(contentTypeHeader) {\n    if (contentTypeHeader === void 0) {\n      contentTypeHeader = '';\n    }\n\n    return contentTypeHeader.toLowerCase().split(';').reduce(function (charset, contentType) {\n      var _contentType$split = contentType.split('='),\n          type = _contentType$split[0],\n          value = _contentType$split[1];\n\n      if (type.trim() === 'charset') {\n        return value.trim();\n      }\n\n      return charset;\n    }, 'utf-8');\n  }\n\n  var httpHandler = httpResponseHandler;\n\n  createXHR.httpHandler = httpHandler;\n  /**\n   * @license\n   * slighly modified parse-headers 2.0.2 <https://github.com/kesla/parse-headers/>\n   * Copyright (c) 2014 David Björklund\n   * Available under the MIT license\n   * <https://github.com/kesla/parse-headers/blob/master/LICENCE>\n   */\n\n  var parseHeaders = function parseHeaders(headers) {\n    var result = {};\n\n    if (!headers) {\n      return result;\n    }\n\n    headers.trim().split('\\n').forEach(function (row) {\n      var index = row.indexOf(':');\n      var key = row.slice(0, index).trim().toLowerCase();\n      var value = row.slice(index + 1).trim();\n\n      if (typeof result[key] === 'undefined') {\n        result[key] = value;\n      } else if (Array.isArray(result[key])) {\n        result[key].push(value);\n      } else {\n        result[key] = [result[key], value];\n      }\n    });\n    return result;\n  };\n\n  var lib = createXHR; // Allow use of default import syntax in TypeScript\n\n  var default_1 = createXHR;\n  createXHR.XMLHttpRequest = window_1.XMLHttpRequest || noop$1;\n  createXHR.XDomainRequest = \"withCredentials\" in new createXHR.XMLHttpRequest() ? createXHR.XMLHttpRequest : window_1.XDomainRequest;\n  forEachArray([\"get\", \"put\", \"post\", \"patch\", \"head\", \"delete\"], function (method) {\n    createXHR[method === \"delete\" ? \"del\" : method] = function (uri, options, callback) {\n      options = initParams(uri, options, callback);\n      options.method = method.toUpperCase();\n      return _createXHR(options);\n    };\n  });\n\n  function forEachArray(array, iterator) {\n    for (var i = 0; i < array.length; i++) {\n      iterator(array[i]);\n    }\n  }\n\n  function isEmpty(obj) {\n    for (var i in obj) {\n      if (obj.hasOwnProperty(i)) return false;\n    }\n\n    return true;\n  }\n\n  function initParams(uri, options, callback) {\n    var params = uri;\n\n    if (isFunction_1(options)) {\n      callback = options;\n\n      if (typeof uri === \"string\") {\n        params = {\n          uri: uri\n        };\n      }\n    } else {\n      params = _extends_1({}, options, {\n        uri: uri\n      });\n    }\n\n    params.callback = callback;\n    return params;\n  }\n\n  function createXHR(uri, options, callback) {\n    options = initParams(uri, options, callback);\n    return _createXHR(options);\n  }\n\n  function _createXHR(options) {\n    if (typeof options.callback === \"undefined\") {\n      throw new Error(\"callback argument missing\");\n    }\n\n    var called = false;\n\n    var callback = function cbOnce(err, response, body) {\n      if (!called) {\n        called = true;\n        options.callback(err, response, body);\n      }\n    };\n\n    function readystatechange() {\n      if (xhr.readyState === 4) {\n        setTimeout(loadFunc, 0);\n      }\n    }\n\n    function getBody() {\n      // Chrome with requestType=blob throws errors arround when even testing access to responseText\n      var body = undefined;\n\n      if (xhr.response) {\n        body = xhr.response;\n      } else {\n        body = xhr.responseText || getXml(xhr);\n      }\n\n      if (isJson) {\n        try {\n          body = JSON.parse(body);\n        } catch (e) {}\n      }\n\n      return body;\n    }\n\n    function errorFunc(evt) {\n      clearTimeout(timeoutTimer);\n\n      if (!(evt instanceof Error)) {\n        evt = new Error(\"\" + (evt || \"Unknown XMLHttpRequest Error\"));\n      }\n\n      evt.statusCode = 0;\n      return callback(evt, failureResponse);\n    } // will load the data & process the response in a special response object\n\n\n    function loadFunc() {\n      if (aborted) return;\n      var status;\n      clearTimeout(timeoutTimer);\n\n      if (options.useXDR && xhr.status === undefined) {\n        //IE8 CORS GET successful response doesn't have a status field, but body is fine\n        status = 200;\n      } else {\n        status = xhr.status === 1223 ? 204 : xhr.status;\n      }\n\n      var response = failureResponse;\n      var err = null;\n\n      if (status !== 0) {\n        response = {\n          body: getBody(),\n          statusCode: status,\n          method: method,\n          headers: {},\n          url: uri,\n          rawRequest: xhr\n        };\n\n        if (xhr.getAllResponseHeaders) {\n          //remember xhr can in fact be XDR for CORS in IE\n          response.headers = parseHeaders(xhr.getAllResponseHeaders());\n        }\n      } else {\n        err = new Error(\"Internal XMLHttpRequest Error\");\n      }\n\n      return callback(err, response, response.body);\n    }\n\n    var xhr = options.xhr || null;\n\n    if (!xhr) {\n      if (options.cors || options.useXDR) {\n        xhr = new createXHR.XDomainRequest();\n      } else {\n        xhr = new createXHR.XMLHttpRequest();\n      }\n    }\n\n    var key;\n    var aborted;\n    var uri = xhr.url = options.uri || options.url;\n    var method = xhr.method = options.method || \"GET\";\n    var body = options.body || options.data;\n    var headers = xhr.headers = options.headers || {};\n    var sync = !!options.sync;\n    var isJson = false;\n    var timeoutTimer;\n    var failureResponse = {\n      body: undefined,\n      headers: {},\n      statusCode: 0,\n      method: method,\n      url: uri,\n      rawRequest: xhr\n    };\n\n    if (\"json\" in options && options.json !== false) {\n      isJson = true;\n      headers[\"accept\"] || headers[\"Accept\"] || (headers[\"Accept\"] = \"application/json\"); //Don't override existing accept header declared by user\n\n      if (method !== \"GET\" && method !== \"HEAD\") {\n        headers[\"content-type\"] || headers[\"Content-Type\"] || (headers[\"Content-Type\"] = \"application/json\"); //Don't override existing accept header declared by user\n\n        body = JSON.stringify(options.json === true ? body : options.json);\n      }\n    }\n\n    xhr.onreadystatechange = readystatechange;\n    xhr.onload = loadFunc;\n    xhr.onerror = errorFunc; // IE9 must have onprogress be set to a unique function.\n\n    xhr.onprogress = function () {// IE must die\n    };\n\n    xhr.onabort = function () {\n      aborted = true;\n    };\n\n    xhr.ontimeout = errorFunc;\n    xhr.open(method, uri, !sync, options.username, options.password); //has to be after open\n\n    if (!sync) {\n      xhr.withCredentials = !!options.withCredentials;\n    } // Cannot set timeout with sync request\n    // not setting timeout on the xhr object, because of old webkits etc. not handling that correctly\n    // both npm's request and jquery 1.x use this kind of timeout, so this is being consistent\n\n\n    if (!sync && options.timeout > 0) {\n      timeoutTimer = setTimeout(function () {\n        if (aborted) return;\n        aborted = true; //IE9 may still call readystatechange\n\n        xhr.abort(\"timeout\");\n        var e = new Error(\"XMLHttpRequest timeout\");\n        e.code = \"ETIMEDOUT\";\n        errorFunc(e);\n      }, options.timeout);\n    }\n\n    if (xhr.setRequestHeader) {\n      for (key in headers) {\n        if (headers.hasOwnProperty(key)) {\n          xhr.setRequestHeader(key, headers[key]);\n        }\n      }\n    } else if (options.headers && !isEmpty(options.headers)) {\n      throw new Error(\"Headers cannot be set on an XDomainRequest object\");\n    }\n\n    if (\"responseType\" in options) {\n      xhr.responseType = options.responseType;\n    }\n\n    if (\"beforeSend\" in options && typeof options.beforeSend === \"function\") {\n      options.beforeSend(xhr);\n    } // Microsoft Edge browser sends \"undefined\" when send is called with undefined value.\n    // XMLHttpRequest spec says to pass null as body to indicate no body\n    // See https://github.com/naugtur/xhr/issues/100.\n\n\n    xhr.send(body || null);\n    return xhr;\n  }\n\n  function getXml(xhr) {\n    // xhr.responseXML will throw Exception \"InvalidStateError\" or \"DOMException\"\n    // See https://developer.mozilla.org/en-US/docs/Web/API/XMLHttpRequest/responseXML.\n    try {\n      if (xhr.responseType === \"document\") {\n        return xhr.responseXML;\n      }\n\n      var firefoxBugTakenEffect = xhr.responseXML && xhr.responseXML.documentElement.nodeName === \"parsererror\";\n\n      if (xhr.responseType === \"\" && !firefoxBugTakenEffect) {\n        return xhr.responseXML;\n      }\n    } catch (e) {}\n\n    return null;\n  }\n\n  function noop$1() {}\n  lib[\"default\"] = default_1;\n\n  /**\n   * Takes a webvtt file contents and parses it into cues\n   *\n   * @param {string} srcContent\n   *        webVTT file contents\n   *\n   * @param {TextTrack} track\n   *        TextTrack to add cues to. Cues come from the srcContent.\n   *\n   * @private\n   */\n\n  var parseCues = function parseCues(srcContent, track) {\n    var parser = new window.WebVTT.Parser(window, window.vttjs, window.WebVTT.StringDecoder());\n    var errors = [];\n\n    parser.oncue = function (cue) {\n      track.addCue(cue);\n    };\n\n    parser.onparsingerror = function (error) {\n      errors.push(error);\n    };\n\n    parser.onflush = function () {\n      track.trigger({\n        type: 'loadeddata',\n        target: track\n      });\n    };\n\n    parser.parse(srcContent);\n\n    if (errors.length > 0) {\n      if (window.console && window.console.groupCollapsed) {\n        window.console.groupCollapsed(\"Text Track parsing errors for \" + track.src);\n      }\n\n      errors.forEach(function (error) {\n        return log$1.error(error);\n      });\n\n      if (window.console && window.console.groupEnd) {\n        window.console.groupEnd();\n      }\n    }\n\n    parser.flush();\n  };\n  /**\n   * Load a `TextTrack` from a specified url.\n   *\n   * @param {string} src\n   *        Url to load track from.\n   *\n   * @param {TextTrack} track\n   *        Track to add cues to. Comes from the content at the end of `url`.\n   *\n   * @private\n   */\n\n\n  var loadTrack = function loadTrack(src, track) {\n    var opts = {\n      uri: src\n    };\n    var crossOrigin = isCrossOrigin(src);\n\n    if (crossOrigin) {\n      opts.cors = crossOrigin;\n    }\n\n    var withCredentials = track.tech_.crossOrigin() === 'use-credentials';\n\n    if (withCredentials) {\n      opts.withCredentials = withCredentials;\n    }\n\n    lib(opts, bind(this, function (err, response, responseBody) {\n      if (err) {\n        return log$1.error(err, response);\n      }\n\n      track.loaded_ = true; // Make sure that vttjs has loaded, otherwise, wait till it finished loading\n      // NOTE: this is only used for the alt/video.novtt.js build\n\n      if (typeof window.WebVTT !== 'function') {\n        if (track.tech_) {\n          // to prevent use before define eslint error, we define loadHandler\n          // as a let here\n          track.tech_.any(['vttjsloaded', 'vttjserror'], function (event) {\n            if (event.type === 'vttjserror') {\n              log$1.error(\"vttjs failed to load, stopping trying to process \" + track.src);\n              return;\n            }\n\n            return parseCues(responseBody, track);\n          });\n        }\n      } else {\n        parseCues(responseBody, track);\n      }\n    }));\n  };\n  /**\n   * A representation of a single `TextTrack`.\n   *\n   * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#texttrack}\n   * @extends Track\n   */\n\n\n  var TextTrack = /*#__PURE__*/function (_Track) {\n    inheritsLoose(TextTrack, _Track);\n\n    /**\n     * Create an instance of this class.\n     *\n     * @param {Object} options={}\n     *        Object of option names and values\n     *\n     * @param {Tech} options.tech\n     *        A reference to the tech that owns this TextTrack.\n     *\n     * @param {TextTrack~Kind} [options.kind='subtitles']\n     *        A valid text track kind.\n     *\n     * @param {TextTrack~Mode} [options.mode='disabled']\n     *        A valid text track mode.\n     *\n     * @param {string} [options.id='vjs_track_' + Guid.newGUID()]\n     *        A unique id for this TextTrack.\n     *\n     * @param {string} [options.label='']\n     *        The menu label for this track.\n     *\n     * @param {string} [options.language='']\n     *        A valid two character language code.\n     *\n     * @param {string} [options.srclang='']\n     *        A valid two character language code. An alternative, but deprioritized\n     *        version of `options.language`\n     *\n     * @param {string} [options.src]\n     *        A url to TextTrack cues.\n     *\n     * @param {boolean} [options.default]\n     *        If this track should default to on or off.\n     */\n    function TextTrack(options) {\n      var _this;\n\n      if (options === void 0) {\n        options = {};\n      }\n\n      if (!options.tech) {\n        throw new Error('A tech was not provided.');\n      }\n\n      var settings = mergeOptions$3(options, {\n        kind: TextTrackKind[options.kind] || 'subtitles',\n        language: options.language || options.srclang || ''\n      });\n      var mode = TextTrackMode[settings.mode] || 'disabled';\n      var default_ = settings[\"default\"];\n\n      if (settings.kind === 'metadata' || settings.kind === 'chapters') {\n        mode = 'hidden';\n      }\n\n      _this = _Track.call(this, settings) || this;\n      _this.tech_ = settings.tech;\n      _this.cues_ = [];\n      _this.activeCues_ = [];\n      _this.preload_ = _this.tech_.preloadTextTracks !== false;\n      var cues = new TextTrackCueList(_this.cues_);\n      var activeCues = new TextTrackCueList(_this.activeCues_);\n      var changed = false;\n      _this.timeupdateHandler = bind(assertThisInitialized(_this), function (event) {\n        if (event === void 0) {\n          event = {};\n        }\n\n        if (this.tech_.isDisposed()) {\n          return;\n        }\n\n        if (!this.tech_.isReady_) {\n          if (event.type !== 'timeupdate') {\n            this.rvf_ = this.tech_.requestVideoFrameCallback(this.timeupdateHandler);\n          }\n\n          return;\n        } // Accessing this.activeCues for the side-effects of updating itself\n        // due to its nature as a getter function. Do not remove or cues will\n        // stop updating!\n        // Use the setter to prevent deletion from uglify (pure_getters rule)\n\n\n        this.activeCues = this.activeCues;\n\n        if (changed) {\n          this.trigger('cuechange');\n          changed = false;\n        }\n\n        if (event.type !== 'timeupdate') {\n          this.rvf_ = this.tech_.requestVideoFrameCallback(this.timeupdateHandler);\n        }\n      });\n\n      var disposeHandler = function disposeHandler() {\n        _this.stopTracking();\n      };\n\n      _this.tech_.one('dispose', disposeHandler);\n\n      if (mode !== 'disabled') {\n        _this.startTracking();\n      }\n\n      Object.defineProperties(assertThisInitialized(_this), {\n        /**\n         * @memberof TextTrack\n         * @member {boolean} default\n         *         If this track was set to be on or off by default. Cannot be changed after\n         *         creation.\n         * @instance\n         *\n         * @readonly\n         */\n        \"default\": {\n          get: function get() {\n            return default_;\n          },\n          set: function set() {}\n        },\n\n        /**\n         * @memberof TextTrack\n         * @member {string} mode\n         *         Set the mode of this TextTrack to a valid {@link TextTrack~Mode}. Will\n         *         not be set if setting to an invalid mode.\n         * @instance\n         *\n         * @fires TextTrack#modechange\n         */\n        mode: {\n          get: function get() {\n            return mode;\n          },\n          set: function set(newMode) {\n            if (!TextTrackMode[newMode]) {\n              return;\n            }\n\n            if (mode === newMode) {\n              return;\n            }\n\n            mode = newMode;\n\n            if (!this.preload_ && mode !== 'disabled' && this.cues.length === 0) {\n              // On-demand load.\n              loadTrack(this.src, this);\n            }\n\n            this.stopTracking();\n\n            if (mode !== 'disabled') {\n              this.startTracking();\n            }\n            /**\n             * An event that fires when mode changes on this track. This allows\n             * the TextTrackList that holds this track to act accordingly.\n             *\n             * > Note: This is not part of the spec!\n             *\n             * @event TextTrack#modechange\n             * @type {EventTarget~Event}\n             */\n\n\n            this.trigger('modechange');\n          }\n        },\n\n        /**\n         * @memberof TextTrack\n         * @member {TextTrackCueList} cues\n         *         The text track cue list for this TextTrack.\n         * @instance\n         */\n        cues: {\n          get: function get() {\n            if (!this.loaded_) {\n              return null;\n            }\n\n            return cues;\n          },\n          set: function set() {}\n        },\n\n        /**\n         * @memberof TextTrack\n         * @member {TextTrackCueList} activeCues\n         *         The list text track cues that are currently active for this TextTrack.\n         * @instance\n         */\n        activeCues: {\n          get: function get() {\n            if (!this.loaded_) {\n              return null;\n            } // nothing to do\n\n\n            if (this.cues.length === 0) {\n              return activeCues;\n            }\n\n            var ct = this.tech_.currentTime();\n            var active = [];\n\n            for (var i = 0, l = this.cues.length; i < l; i++) {\n              var cue = this.cues[i];\n\n              if (cue.startTime <= ct && cue.endTime >= ct) {\n                active.push(cue);\n              } else if (cue.startTime === cue.endTime && cue.startTime <= ct && cue.startTime + 0.5 >= ct) {\n                active.push(cue);\n              }\n            }\n\n            changed = false;\n\n            if (active.length !== this.activeCues_.length) {\n              changed = true;\n            } else {\n              for (var _i = 0; _i < active.length; _i++) {\n                if (this.activeCues_.indexOf(active[_i]) === -1) {\n                  changed = true;\n                }\n              }\n            }\n\n            this.activeCues_ = active;\n            activeCues.setCues_(this.activeCues_);\n            return activeCues;\n          },\n          // /!\\ Keep this setter empty (see the timeupdate handler above)\n          set: function set() {}\n        }\n      });\n\n      if (settings.src) {\n        _this.src = settings.src;\n\n        if (!_this.preload_) {\n          // Tracks will load on-demand.\n          // Act like we're loaded for other purposes.\n          _this.loaded_ = true;\n        }\n\n        if (_this.preload_ || settings.kind !== 'subtitles' && settings.kind !== 'captions') {\n          loadTrack(_this.src, assertThisInitialized(_this));\n        }\n      } else {\n        _this.loaded_ = true;\n      }\n\n      return _this;\n    }\n\n    var _proto = TextTrack.prototype;\n\n    _proto.startTracking = function startTracking() {\n      // More precise cues based on requestVideoFrameCallback with a requestAnimationFram fallback\n      this.rvf_ = this.tech_.requestVideoFrameCallback(this.timeupdateHandler); // Also listen to timeupdate in case rVFC/rAF stops (window in background, audio in video el)\n\n      this.tech_.on('timeupdate', this.timeupdateHandler);\n    };\n\n    _proto.stopTracking = function stopTracking() {\n      if (this.rvf_) {\n        this.tech_.cancelVideoFrameCallback(this.rvf_);\n        this.rvf_ = undefined;\n      }\n\n      this.tech_.off('timeupdate', this.timeupdateHandler);\n    }\n    /**\n     * Add a cue to the internal list of cues.\n     *\n     * @param {TextTrack~Cue} cue\n     *        The cue to add to our internal list\n     */\n    ;\n\n    _proto.addCue = function addCue(originalCue) {\n      var cue = originalCue;\n\n      if (window.vttjs && !(originalCue instanceof window.vttjs.VTTCue)) {\n        cue = new window.vttjs.VTTCue(originalCue.startTime, originalCue.endTime, originalCue.text);\n\n        for (var prop in originalCue) {\n          if (!(prop in cue)) {\n            cue[prop] = originalCue[prop];\n          }\n        } // make sure that `id` is copied over\n\n\n        cue.id = originalCue.id;\n        cue.originalCue_ = originalCue;\n      }\n\n      var tracks = this.tech_.textTracks();\n\n      for (var i = 0; i < tracks.length; i++) {\n        if (tracks[i] !== this) {\n          tracks[i].removeCue(cue);\n        }\n      }\n\n      this.cues_.push(cue);\n      this.cues.setCues_(this.cues_);\n    }\n    /**\n     * Remove a cue from our internal list\n     *\n     * @param {TextTrack~Cue} removeCue\n     *        The cue to remove from our internal list\n     */\n    ;\n\n    _proto.removeCue = function removeCue(_removeCue) {\n      var i = this.cues_.length;\n\n      while (i--) {\n        var cue = this.cues_[i];\n\n        if (cue === _removeCue || cue.originalCue_ && cue.originalCue_ === _removeCue) {\n          this.cues_.splice(i, 1);\n          this.cues.setCues_(this.cues_);\n          break;\n        }\n      }\n    };\n\n    return TextTrack;\n  }(Track);\n  /**\n   * cuechange - One or more cues in the track have become active or stopped being active.\n   */\n\n\n  TextTrack.prototype.allowedEvents_ = {\n    cuechange: 'cuechange'\n  };\n\n  /**\n   * A representation of a single `AudioTrack`. If it is part of an {@link AudioTrackList}\n   * only one `AudioTrack` in the list will be enabled at a time.\n   *\n   * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#audiotrack}\n   * @extends Track\n   */\n\n  var AudioTrack = /*#__PURE__*/function (_Track) {\n    inheritsLoose(AudioTrack, _Track);\n\n    /**\n     * Create an instance of this class.\n     *\n     * @param {Object} [options={}]\n     *        Object of option names and values\n     *\n     * @param {AudioTrack~Kind} [options.kind='']\n     *        A valid audio track kind\n     *\n     * @param {string} [options.id='vjs_track_' + Guid.newGUID()]\n     *        A unique id for this AudioTrack.\n     *\n     * @param {string} [options.label='']\n     *        The menu label for this track.\n     *\n     * @param {string} [options.language='']\n     *        A valid two character language code.\n     *\n     * @param {boolean} [options.enabled]\n     *        If this track is the one that is currently playing. If this track is part of\n     *        an {@link AudioTrackList}, only one {@link AudioTrack} will be enabled.\n     */\n    function AudioTrack(options) {\n      var _this;\n\n      if (options === void 0) {\n        options = {};\n      }\n\n      var settings = mergeOptions$3(options, {\n        kind: AudioTrackKind[options.kind] || ''\n      });\n      _this = _Track.call(this, settings) || this;\n      var enabled = false;\n      /**\n       * @memberof AudioTrack\n       * @member {boolean} enabled\n       *         If this `AudioTrack` is enabled or not. When setting this will\n       *         fire {@link AudioTrack#enabledchange} if the state of enabled is changed.\n       * @instance\n       *\n       * @fires VideoTrack#selectedchange\n       */\n\n      Object.defineProperty(assertThisInitialized(_this), 'enabled', {\n        get: function get() {\n          return enabled;\n        },\n        set: function set(newEnabled) {\n          // an invalid or unchanged value\n          if (typeof newEnabled !== 'boolean' || newEnabled === enabled) {\n            return;\n          }\n\n          enabled = newEnabled;\n          /**\n           * An event that fires when enabled changes on this track. This allows\n           * the AudioTrackList that holds this track to act accordingly.\n           *\n           * > Note: This is not part of the spec! Native tracks will do\n           *         this internally without an event.\n           *\n           * @event AudioTrack#enabledchange\n           * @type {EventTarget~Event}\n           */\n\n          this.trigger('enabledchange');\n        }\n      }); // if the user sets this track to selected then\n      // set selected to that true value otherwise\n      // we keep it false\n\n      if (settings.enabled) {\n        _this.enabled = settings.enabled;\n      }\n\n      _this.loaded_ = true;\n      return _this;\n    }\n\n    return AudioTrack;\n  }(Track);\n\n  /**\n   * A representation of a single `VideoTrack`.\n   *\n   * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#videotrack}\n   * @extends Track\n   */\n\n  var VideoTrack = /*#__PURE__*/function (_Track) {\n    inheritsLoose(VideoTrack, _Track);\n\n    /**\n     * Create an instance of this class.\n     *\n     * @param {Object} [options={}]\n     *        Object of option names and values\n     *\n     * @param {string} [options.kind='']\n     *        A valid {@link VideoTrack~Kind}\n     *\n     * @param {string} [options.id='vjs_track_' + Guid.newGUID()]\n     *        A unique id for this AudioTrack.\n     *\n     * @param {string} [options.label='']\n     *        The menu label for this track.\n     *\n     * @param {string} [options.language='']\n     *        A valid two character language code.\n     *\n     * @param {boolean} [options.selected]\n     *        If this track is the one that is currently playing.\n     */\n    function VideoTrack(options) {\n      var _this;\n\n      if (options === void 0) {\n        options = {};\n      }\n\n      var settings = mergeOptions$3(options, {\n        kind: VideoTrackKind[options.kind] || ''\n      });\n      _this = _Track.call(this, settings) || this;\n      var selected = false;\n      /**\n       * @memberof VideoTrack\n       * @member {boolean} selected\n       *         If this `VideoTrack` is selected or not. When setting this will\n       *         fire {@link VideoTrack#selectedchange} if the state of selected changed.\n       * @instance\n       *\n       * @fires VideoTrack#selectedchange\n       */\n\n      Object.defineProperty(assertThisInitialized(_this), 'selected', {\n        get: function get() {\n          return selected;\n        },\n        set: function set(newSelected) {\n          // an invalid or unchanged value\n          if (typeof newSelected !== 'boolean' || newSelected === selected) {\n            return;\n          }\n\n          selected = newSelected;\n          /**\n           * An event that fires when selected changes on this track. This allows\n           * the VideoTrackList that holds this track to act accordingly.\n           *\n           * > Note: This is not part of the spec! Native tracks will do\n           *         this internally without an event.\n           *\n           * @event VideoTrack#selectedchange\n           * @type {EventTarget~Event}\n           */\n\n          this.trigger('selectedchange');\n        }\n      }); // if the user sets this track to selected then\n      // set selected to that true value otherwise\n      // we keep it false\n\n      if (settings.selected) {\n        _this.selected = settings.selected;\n      }\n\n      return _this;\n    }\n\n    return VideoTrack;\n  }(Track);\n\n  /**\n   * @memberof HTMLTrackElement\n   * @typedef {HTMLTrackElement~ReadyState}\n   * @enum {number}\n   */\n\n  var NONE = 0;\n  var LOADING = 1;\n  var LOADED = 2;\n  var ERROR = 3;\n  /**\n   * A single track represented in the DOM.\n   *\n   * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#htmltrackelement}\n   * @extends EventTarget\n   */\n\n  var HTMLTrackElement = /*#__PURE__*/function (_EventTarget) {\n    inheritsLoose(HTMLTrackElement, _EventTarget);\n\n    /**\n     * Create an instance of this class.\n     *\n     * @param {Object} options={}\n     *        Object of option names and values\n     *\n     * @param {Tech} options.tech\n     *        A reference to the tech that owns this HTMLTrackElement.\n     *\n     * @param {TextTrack~Kind} [options.kind='subtitles']\n     *        A valid text track kind.\n     *\n     * @param {TextTrack~Mode} [options.mode='disabled']\n     *        A valid text track mode.\n     *\n     * @param {string} [options.id='vjs_track_' + Guid.newGUID()]\n     *        A unique id for this TextTrack.\n     *\n     * @param {string} [options.label='']\n     *        The menu label for this track.\n     *\n     * @param {string} [options.language='']\n     *        A valid two character language code.\n     *\n     * @param {string} [options.srclang='']\n     *        A valid two character language code. An alternative, but deprioritized\n     *        version of `options.language`\n     *\n     * @param {string} [options.src]\n     *        A url to TextTrack cues.\n     *\n     * @param {boolean} [options.default]\n     *        If this track should default to on or off.\n     */\n    function HTMLTrackElement(options) {\n      var _this;\n\n      if (options === void 0) {\n        options = {};\n      }\n\n      _this = _EventTarget.call(this) || this;\n      var readyState;\n      var track = new TextTrack(options);\n      _this.kind = track.kind;\n      _this.src = track.src;\n      _this.srclang = track.language;\n      _this.label = track.label;\n      _this[\"default\"] = track[\"default\"];\n      Object.defineProperties(assertThisInitialized(_this), {\n        /**\n         * @memberof HTMLTrackElement\n         * @member {HTMLTrackElement~ReadyState} readyState\n         *         The current ready state of the track element.\n         * @instance\n         */\n        readyState: {\n          get: function get() {\n            return readyState;\n          }\n        },\n\n        /**\n         * @memberof HTMLTrackElement\n         * @member {TextTrack} track\n         *         The underlying TextTrack object.\n         * @instance\n         *\n         */\n        track: {\n          get: function get() {\n            return track;\n          }\n        }\n      });\n      readyState = NONE;\n      /**\n       * @listens TextTrack#loadeddata\n       * @fires HTMLTrackElement#load\n       */\n\n      track.addEventListener('loadeddata', function () {\n        readyState = LOADED;\n\n        _this.trigger({\n          type: 'load',\n          target: assertThisInitialized(_this)\n        });\n      });\n      return _this;\n    }\n\n    return HTMLTrackElement;\n  }(EventTarget$2);\n\n  HTMLTrackElement.prototype.allowedEvents_ = {\n    load: 'load'\n  };\n  HTMLTrackElement.NONE = NONE;\n  HTMLTrackElement.LOADING = LOADING;\n  HTMLTrackElement.LOADED = LOADED;\n  HTMLTrackElement.ERROR = ERROR;\n\n  /*\n   * This file contains all track properties that are used in\n   * player.js, tech.js, html5.js and possibly other techs in the future.\n   */\n\n  var NORMAL = {\n    audio: {\n      ListClass: AudioTrackList,\n      TrackClass: AudioTrack,\n      capitalName: 'Audio'\n    },\n    video: {\n      ListClass: VideoTrackList,\n      TrackClass: VideoTrack,\n      capitalName: 'Video'\n    },\n    text: {\n      ListClass: TextTrackList,\n      TrackClass: TextTrack,\n      capitalName: 'Text'\n    }\n  };\n  Object.keys(NORMAL).forEach(function (type) {\n    NORMAL[type].getterName = type + \"Tracks\";\n    NORMAL[type].privateName = type + \"Tracks_\";\n  });\n  var REMOTE = {\n    remoteText: {\n      ListClass: TextTrackList,\n      TrackClass: TextTrack,\n      capitalName: 'RemoteText',\n      getterName: 'remoteTextTracks',\n      privateName: 'remoteTextTracks_'\n    },\n    remoteTextEl: {\n      ListClass: HtmlTrackElementList,\n      TrackClass: HTMLTrackElement,\n      capitalName: 'RemoteTextTrackEls',\n      getterName: 'remoteTextTrackEls',\n      privateName: 'remoteTextTrackEls_'\n    }\n  };\n\n  var ALL = _extends_1({}, NORMAL, REMOTE);\n\n  REMOTE.names = Object.keys(REMOTE);\n  NORMAL.names = Object.keys(NORMAL);\n  ALL.names = [].concat(REMOTE.names).concat(NORMAL.names);\n\n  var minDoc = {};\n\n  var topLevel = typeof commonjsGlobal !== 'undefined' ? commonjsGlobal : typeof window !== 'undefined' ? window : {};\n  var doccy;\n\n  if (typeof document !== 'undefined') {\n    doccy = document;\n  } else {\n    doccy = topLevel['__GLOBAL_DOCUMENT_CACHE@4'];\n\n    if (!doccy) {\n      doccy = topLevel['__GLOBAL_DOCUMENT_CACHE@4'] = minDoc;\n    }\n  }\n\n  var document_1 = doccy;\n\n  /**\n   * Copyright 2013 vtt.js Contributors\n   *\n   * Licensed under the Apache License, Version 2.0 (the \"License\");\n   * you may not use this file except in compliance with the License.\n   * You may obtain a copy of the License at\n   *\n   *   http://www.apache.org/licenses/LICENSE-2.0\n   *\n   * Unless required by applicable law or agreed to in writing, software\n   * distributed under the License is distributed on an \"AS IS\" BASIS,\n   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n   * See the License for the specific language governing permissions and\n   * limitations under the License.\n   */\n\n  /* -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */\n\n  /* vim: set shiftwidth=2 tabstop=2 autoindent cindent expandtab: */\n\n  var _objCreate = Object.create || function () {\n    function F() {}\n\n    return function (o) {\n      if (arguments.length !== 1) {\n        throw new Error('Object.create shim only accepts one parameter.');\n      }\n\n      F.prototype = o;\n      return new F();\n    };\n  }(); // Creates a new ParserError object from an errorData object. The errorData\n  // object should have default code and message properties. The default message\n  // property can be overriden by passing in a message parameter.\n  // See ParsingError.Errors below for acceptable errors.\n\n\n  function ParsingError(errorData, message) {\n    this.name = \"ParsingError\";\n    this.code = errorData.code;\n    this.message = message || errorData.message;\n  }\n\n  ParsingError.prototype = _objCreate(Error.prototype);\n  ParsingError.prototype.constructor = ParsingError; // ParsingError metadata for acceptable ParsingErrors.\n\n  ParsingError.Errors = {\n    BadSignature: {\n      code: 0,\n      message: \"Malformed WebVTT signature.\"\n    },\n    BadTimeStamp: {\n      code: 1,\n      message: \"Malformed time stamp.\"\n    }\n  }; // Try to parse input as a time stamp.\n\n  function parseTimeStamp(input) {\n    function computeSeconds(h, m, s, f) {\n      return (h | 0) * 3600 + (m | 0) * 60 + (s | 0) + (f | 0) / 1000;\n    }\n\n    var m = input.match(/^(\\d+):(\\d{1,2})(:\\d{1,2})?\\.(\\d{3})/);\n\n    if (!m) {\n      return null;\n    }\n\n    if (m[3]) {\n      // Timestamp takes the form of [hours]:[minutes]:[seconds].[milliseconds]\n      return computeSeconds(m[1], m[2], m[3].replace(\":\", \"\"), m[4]);\n    } else if (m[1] > 59) {\n      // Timestamp takes the form of [hours]:[minutes].[milliseconds]\n      // First position is hours as it's over 59.\n      return computeSeconds(m[1], m[2], 0, m[4]);\n    } else {\n      // Timestamp takes the form of [minutes]:[seconds].[milliseconds]\n      return computeSeconds(0, m[1], m[2], m[4]);\n    }\n  } // A settings object holds key/value pairs and will ignore anything but the first\n  // assignment to a specific key.\n\n\n  function Settings() {\n    this.values = _objCreate(null);\n  }\n\n  Settings.prototype = {\n    // Only accept the first assignment to any key.\n    set: function set(k, v) {\n      if (!this.get(k) && v !== \"\") {\n        this.values[k] = v;\n      }\n    },\n    // Return the value for a key, or a default value.\n    // If 'defaultKey' is passed then 'dflt' is assumed to be an object with\n    // a number of possible default values as properties where 'defaultKey' is\n    // the key of the property that will be chosen; otherwise it's assumed to be\n    // a single value.\n    get: function get(k, dflt, defaultKey) {\n      if (defaultKey) {\n        return this.has(k) ? this.values[k] : dflt[defaultKey];\n      }\n\n      return this.has(k) ? this.values[k] : dflt;\n    },\n    // Check whether we have a value for a key.\n    has: function has(k) {\n      return k in this.values;\n    },\n    // Accept a setting if its one of the given alternatives.\n    alt: function alt(k, v, a) {\n      for (var n = 0; n < a.length; ++n) {\n        if (v === a[n]) {\n          this.set(k, v);\n          break;\n        }\n      }\n    },\n    // Accept a setting if its a valid (signed) integer.\n    integer: function integer(k, v) {\n      if (/^-?\\d+$/.test(v)) {\n        // integer\n        this.set(k, parseInt(v, 10));\n      }\n    },\n    // Accept a setting if its a valid percentage.\n    percent: function percent(k, v) {\n\n      if (v.match(/^([\\d]{1,3})(\\.[\\d]*)?%$/)) {\n        v = parseFloat(v);\n\n        if (v >= 0 && v <= 100) {\n          this.set(k, v);\n          return true;\n        }\n      }\n\n      return false;\n    }\n  }; // Helper function to parse input into groups separated by 'groupDelim', and\n  // interprete each group as a key/value pair separated by 'keyValueDelim'.\n\n  function parseOptions(input, callback, keyValueDelim, groupDelim) {\n    var groups = groupDelim ? input.split(groupDelim) : [input];\n\n    for (var i in groups) {\n      if (typeof groups[i] !== \"string\") {\n        continue;\n      }\n\n      var kv = groups[i].split(keyValueDelim);\n\n      if (kv.length !== 2) {\n        continue;\n      }\n\n      var k = kv[0].trim();\n      var v = kv[1].trim();\n      callback(k, v);\n    }\n  }\n\n  function parseCue(input, cue, regionList) {\n    // Remember the original input if we need to throw an error.\n    var oInput = input; // 4.1 WebVTT timestamp\n\n    function consumeTimeStamp() {\n      var ts = parseTimeStamp(input);\n\n      if (ts === null) {\n        throw new ParsingError(ParsingError.Errors.BadTimeStamp, \"Malformed timestamp: \" + oInput);\n      } // Remove time stamp from input.\n\n\n      input = input.replace(/^[^\\sa-zA-Z-]+/, \"\");\n      return ts;\n    } // 4.4.2 WebVTT cue settings\n\n\n    function consumeCueSettings(input, cue) {\n      var settings = new Settings();\n      parseOptions(input, function (k, v) {\n        switch (k) {\n          case \"region\":\n            // Find the last region we parsed with the same region id.\n            for (var i = regionList.length - 1; i >= 0; i--) {\n              if (regionList[i].id === v) {\n                settings.set(k, regionList[i].region);\n                break;\n              }\n            }\n\n            break;\n\n          case \"vertical\":\n            settings.alt(k, v, [\"rl\", \"lr\"]);\n            break;\n\n          case \"line\":\n            var vals = v.split(\",\"),\n                vals0 = vals[0];\n            settings.integer(k, vals0);\n            settings.percent(k, vals0) ? settings.set(\"snapToLines\", false) : null;\n            settings.alt(k, vals0, [\"auto\"]);\n\n            if (vals.length === 2) {\n              settings.alt(\"lineAlign\", vals[1], [\"start\", \"center\", \"end\"]);\n            }\n\n            break;\n\n          case \"position\":\n            vals = v.split(\",\");\n            settings.percent(k, vals[0]);\n\n            if (vals.length === 2) {\n              settings.alt(\"positionAlign\", vals[1], [\"start\", \"center\", \"end\"]);\n            }\n\n            break;\n\n          case \"size\":\n            settings.percent(k, v);\n            break;\n\n          case \"align\":\n            settings.alt(k, v, [\"start\", \"center\", \"end\", \"left\", \"right\"]);\n            break;\n        }\n      }, /:/, /\\s/); // Apply default values for any missing fields.\n\n      cue.region = settings.get(\"region\", null);\n      cue.vertical = settings.get(\"vertical\", \"\");\n\n      try {\n        cue.line = settings.get(\"line\", \"auto\");\n      } catch (e) {}\n\n      cue.lineAlign = settings.get(\"lineAlign\", \"start\");\n      cue.snapToLines = settings.get(\"snapToLines\", true);\n      cue.size = settings.get(\"size\", 100); // Safari still uses the old middle value and won't accept center\n\n      try {\n        cue.align = settings.get(\"align\", \"center\");\n      } catch (e) {\n        cue.align = settings.get(\"align\", \"middle\");\n      }\n\n      try {\n        cue.position = settings.get(\"position\", \"auto\");\n      } catch (e) {\n        cue.position = settings.get(\"position\", {\n          start: 0,\n          left: 0,\n          center: 50,\n          middle: 50,\n          end: 100,\n          right: 100\n        }, cue.align);\n      }\n\n      cue.positionAlign = settings.get(\"positionAlign\", {\n        start: \"start\",\n        left: \"start\",\n        center: \"center\",\n        middle: \"center\",\n        end: \"end\",\n        right: \"end\"\n      }, cue.align);\n    }\n\n    function skipWhitespace() {\n      input = input.replace(/^\\s+/, \"\");\n    } // 4.1 WebVTT cue timings.\n\n\n    skipWhitespace();\n    cue.startTime = consumeTimeStamp(); // (1) collect cue start time\n\n    skipWhitespace();\n\n    if (input.substr(0, 3) !== \"-->\") {\n      // (3) next characters must match \"-->\"\n      throw new ParsingError(ParsingError.Errors.BadTimeStamp, \"Malformed time stamp (time stamps must be separated by '-->'): \" + oInput);\n    }\n\n    input = input.substr(3);\n    skipWhitespace();\n    cue.endTime = consumeTimeStamp(); // (5) collect cue end time\n    // 4.1 WebVTT cue settings list.\n\n    skipWhitespace();\n    consumeCueSettings(input, cue);\n  } // When evaluating this file as part of a Webpack bundle for server\n  // side rendering, `document` is an empty object.\n\n\n  var TEXTAREA_ELEMENT = document_1.createElement && document_1.createElement(\"textarea\");\n  var TAG_NAME = {\n    c: \"span\",\n    i: \"i\",\n    b: \"b\",\n    u: \"u\",\n    ruby: \"ruby\",\n    rt: \"rt\",\n    v: \"span\",\n    lang: \"span\"\n  }; // 5.1 default text color\n  // 5.2 default text background color is equivalent to text color with bg_ prefix\n\n  var DEFAULT_COLOR_CLASS = {\n    white: 'rgba(255,255,255,1)',\n    lime: 'rgba(0,255,0,1)',\n    cyan: 'rgba(0,255,255,1)',\n    red: 'rgba(255,0,0,1)',\n    yellow: 'rgba(255,255,0,1)',\n    magenta: 'rgba(255,0,255,1)',\n    blue: 'rgba(0,0,255,1)',\n    black: 'rgba(0,0,0,1)'\n  };\n  var TAG_ANNOTATION = {\n    v: \"title\",\n    lang: \"lang\"\n  };\n  var NEEDS_PARENT = {\n    rt: \"ruby\"\n  }; // Parse content into a document fragment.\n\n  function parseContent(window, input) {\n    function nextToken() {\n      // Check for end-of-string.\n      if (!input) {\n        return null;\n      } // Consume 'n' characters from the input.\n\n\n      function consume(result) {\n        input = input.substr(result.length);\n        return result;\n      }\n\n      var m = input.match(/^([^<]*)(<[^>]*>?)?/); // If there is some text before the next tag, return it, otherwise return\n      // the tag.\n\n      return consume(m[1] ? m[1] : m[2]);\n    }\n\n    function unescape(s) {\n      TEXTAREA_ELEMENT.innerHTML = s;\n      s = TEXTAREA_ELEMENT.textContent;\n      TEXTAREA_ELEMENT.textContent = \"\";\n      return s;\n    }\n\n    function shouldAdd(current, element) {\n      return !NEEDS_PARENT[element.localName] || NEEDS_PARENT[element.localName] === current.localName;\n    } // Create an element for this tag.\n\n\n    function createElement(type, annotation) {\n      var tagName = TAG_NAME[type];\n\n      if (!tagName) {\n        return null;\n      }\n\n      var element = window.document.createElement(tagName);\n      var name = TAG_ANNOTATION[type];\n\n      if (name && annotation) {\n        element[name] = annotation.trim();\n      }\n\n      return element;\n    }\n\n    var rootDiv = window.document.createElement(\"div\"),\n        current = rootDiv,\n        t,\n        tagStack = [];\n\n    while ((t = nextToken()) !== null) {\n      if (t[0] === '<') {\n        if (t[1] === \"/\") {\n          // If the closing tag matches, move back up to the parent node.\n          if (tagStack.length && tagStack[tagStack.length - 1] === t.substr(2).replace(\">\", \"\")) {\n            tagStack.pop();\n            current = current.parentNode;\n          } // Otherwise just ignore the end tag.\n\n\n          continue;\n        }\n\n        var ts = parseTimeStamp(t.substr(1, t.length - 2));\n        var node;\n\n        if (ts) {\n          // Timestamps are lead nodes as well.\n          node = window.document.createProcessingInstruction(\"timestamp\", ts);\n          current.appendChild(node);\n          continue;\n        }\n\n        var m = t.match(/^<([^.\\s/0-9>]+)(\\.[^\\s\\\\>]+)?([^>\\\\]+)?(\\\\?)>?$/); // If we can't parse the tag, skip to the next tag.\n\n        if (!m) {\n          continue;\n        } // Try to construct an element, and ignore the tag if we couldn't.\n\n\n        node = createElement(m[1], m[3]);\n\n        if (!node) {\n          continue;\n        } // Determine if the tag should be added based on the context of where it\n        // is placed in the cuetext.\n\n\n        if (!shouldAdd(current, node)) {\n          continue;\n        } // Set the class list (as a list of classes, separated by space).\n\n\n        if (m[2]) {\n          var classes = m[2].split('.');\n          classes.forEach(function (cl) {\n            var bgColor = /^bg_/.test(cl); // slice out `bg_` if it's a background color\n\n            var colorName = bgColor ? cl.slice(3) : cl;\n\n            if (DEFAULT_COLOR_CLASS.hasOwnProperty(colorName)) {\n              var propName = bgColor ? 'background-color' : 'color';\n              var propValue = DEFAULT_COLOR_CLASS[colorName];\n              node.style[propName] = propValue;\n            }\n          });\n          node.className = classes.join(' ');\n        } // Append the node to the current node, and enter the scope of the new\n        // node.\n\n\n        tagStack.push(m[1]);\n        current.appendChild(node);\n        current = node;\n        continue;\n      } // Text nodes are leaf nodes.\n\n\n      current.appendChild(window.document.createTextNode(unescape(t)));\n    }\n\n    return rootDiv;\n  } // This is a list of all the Unicode characters that have a strong\n  // right-to-left category. What this means is that these characters are\n  // written right-to-left for sure. It was generated by pulling all the strong\n  // right-to-left characters out of the Unicode data table. That table can\n  // found at: http://www.unicode.org/Public/UNIDATA/UnicodeData.txt\n\n\n  var strongRTLRanges = [[0x5be, 0x5be], [0x5c0, 0x5c0], [0x5c3, 0x5c3], [0x5c6, 0x5c6], [0x5d0, 0x5ea], [0x5f0, 0x5f4], [0x608, 0x608], [0x60b, 0x60b], [0x60d, 0x60d], [0x61b, 0x61b], [0x61e, 0x64a], [0x66d, 0x66f], [0x671, 0x6d5], [0x6e5, 0x6e6], [0x6ee, 0x6ef], [0x6fa, 0x70d], [0x70f, 0x710], [0x712, 0x72f], [0x74d, 0x7a5], [0x7b1, 0x7b1], [0x7c0, 0x7ea], [0x7f4, 0x7f5], [0x7fa, 0x7fa], [0x800, 0x815], [0x81a, 0x81a], [0x824, 0x824], [0x828, 0x828], [0x830, 0x83e], [0x840, 0x858], [0x85e, 0x85e], [0x8a0, 0x8a0], [0x8a2, 0x8ac], [0x200f, 0x200f], [0xfb1d, 0xfb1d], [0xfb1f, 0xfb28], [0xfb2a, 0xfb36], [0xfb38, 0xfb3c], [0xfb3e, 0xfb3e], [0xfb40, 0xfb41], [0xfb43, 0xfb44], [0xfb46, 0xfbc1], [0xfbd3, 0xfd3d], [0xfd50, 0xfd8f], [0xfd92, 0xfdc7], [0xfdf0, 0xfdfc], [0xfe70, 0xfe74], [0xfe76, 0xfefc], [0x10800, 0x10805], [0x10808, 0x10808], [0x1080a, 0x10835], [0x10837, 0x10838], [0x1083c, 0x1083c], [0x1083f, 0x10855], [0x10857, 0x1085f], [0x10900, 0x1091b], [0x10920, 0x10939], [0x1093f, 0x1093f], [0x10980, 0x109b7], [0x109be, 0x109bf], [0x10a00, 0x10a00], [0x10a10, 0x10a13], [0x10a15, 0x10a17], [0x10a19, 0x10a33], [0x10a40, 0x10a47], [0x10a50, 0x10a58], [0x10a60, 0x10a7f], [0x10b00, 0x10b35], [0x10b40, 0x10b55], [0x10b58, 0x10b72], [0x10b78, 0x10b7f], [0x10c00, 0x10c48], [0x1ee00, 0x1ee03], [0x1ee05, 0x1ee1f], [0x1ee21, 0x1ee22], [0x1ee24, 0x1ee24], [0x1ee27, 0x1ee27], [0x1ee29, 0x1ee32], [0x1ee34, 0x1ee37], [0x1ee39, 0x1ee39], [0x1ee3b, 0x1ee3b], [0x1ee42, 0x1ee42], [0x1ee47, 0x1ee47], [0x1ee49, 0x1ee49], [0x1ee4b, 0x1ee4b], [0x1ee4d, 0x1ee4f], [0x1ee51, 0x1ee52], [0x1ee54, 0x1ee54], [0x1ee57, 0x1ee57], [0x1ee59, 0x1ee59], [0x1ee5b, 0x1ee5b], [0x1ee5d, 0x1ee5d], [0x1ee5f, 0x1ee5f], [0x1ee61, 0x1ee62], [0x1ee64, 0x1ee64], [0x1ee67, 0x1ee6a], [0x1ee6c, 0x1ee72], [0x1ee74, 0x1ee77], [0x1ee79, 0x1ee7c], [0x1ee7e, 0x1ee7e], [0x1ee80, 0x1ee89], [0x1ee8b, 0x1ee9b], [0x1eea1, 0x1eea3], [0x1eea5, 0x1eea9], [0x1eeab, 0x1eebb], [0x10fffd, 0x10fffd]];\n\n  function isStrongRTLChar(charCode) {\n    for (var i = 0; i < strongRTLRanges.length; i++) {\n      var currentRange = strongRTLRanges[i];\n\n      if (charCode >= currentRange[0] && charCode <= currentRange[1]) {\n        return true;\n      }\n    }\n\n    return false;\n  }\n\n  function determineBidi(cueDiv) {\n    var nodeStack = [],\n        text = \"\",\n        charCode;\n\n    if (!cueDiv || !cueDiv.childNodes) {\n      return \"ltr\";\n    }\n\n    function pushNodes(nodeStack, node) {\n      for (var i = node.childNodes.length - 1; i >= 0; i--) {\n        nodeStack.push(node.childNodes[i]);\n      }\n    }\n\n    function nextTextNode(nodeStack) {\n      if (!nodeStack || !nodeStack.length) {\n        return null;\n      }\n\n      var node = nodeStack.pop(),\n          text = node.textContent || node.innerText;\n\n      if (text) {\n        // TODO: This should match all unicode type B characters (paragraph\n        // separator characters). See issue #115.\n        var m = text.match(/^.*(\\n|\\r)/);\n\n        if (m) {\n          nodeStack.length = 0;\n          return m[0];\n        }\n\n        return text;\n      }\n\n      if (node.tagName === \"ruby\") {\n        return nextTextNode(nodeStack);\n      }\n\n      if (node.childNodes) {\n        pushNodes(nodeStack, node);\n        return nextTextNode(nodeStack);\n      }\n    }\n\n    pushNodes(nodeStack, cueDiv);\n\n    while (text = nextTextNode(nodeStack)) {\n      for (var i = 0; i < text.length; i++) {\n        charCode = text.charCodeAt(i);\n\n        if (isStrongRTLChar(charCode)) {\n          return \"rtl\";\n        }\n      }\n    }\n\n    return \"ltr\";\n  }\n\n  function computeLinePos(cue) {\n    if (typeof cue.line === \"number\" && (cue.snapToLines || cue.line >= 0 && cue.line <= 100)) {\n      return cue.line;\n    }\n\n    if (!cue.track || !cue.track.textTrackList || !cue.track.textTrackList.mediaElement) {\n      return -1;\n    }\n\n    var track = cue.track,\n        trackList = track.textTrackList,\n        count = 0;\n\n    for (var i = 0; i < trackList.length && trackList[i] !== track; i++) {\n      if (trackList[i].mode === \"showing\") {\n        count++;\n      }\n    }\n\n    return ++count * -1;\n  }\n\n  function StyleBox() {} // Apply styles to a div. If there is no div passed then it defaults to the\n  // div on 'this'.\n\n\n  StyleBox.prototype.applyStyles = function (styles, div) {\n    div = div || this.div;\n\n    for (var prop in styles) {\n      if (styles.hasOwnProperty(prop)) {\n        div.style[prop] = styles[prop];\n      }\n    }\n  };\n\n  StyleBox.prototype.formatStyle = function (val, unit) {\n    return val === 0 ? 0 : val + unit;\n  }; // Constructs the computed display state of the cue (a div). Places the div\n  // into the overlay which should be a block level element (usually a div).\n\n\n  function CueStyleBox(window, cue, styleOptions) {\n    StyleBox.call(this);\n    this.cue = cue; // Parse our cue's text into a DOM tree rooted at 'cueDiv'. This div will\n    // have inline positioning and will function as the cue background box.\n\n    this.cueDiv = parseContent(window, cue.text);\n    var styles = {\n      color: \"rgba(255, 255, 255, 1)\",\n      backgroundColor: \"rgba(0, 0, 0, 0.8)\",\n      position: \"relative\",\n      left: 0,\n      right: 0,\n      top: 0,\n      bottom: 0,\n      display: \"inline\",\n      writingMode: cue.vertical === \"\" ? \"horizontal-tb\" : cue.vertical === \"lr\" ? \"vertical-lr\" : \"vertical-rl\",\n      unicodeBidi: \"plaintext\"\n    };\n    this.applyStyles(styles, this.cueDiv); // Create an absolutely positioned div that will be used to position the cue\n    // div. Note, all WebVTT cue-setting alignments are equivalent to the CSS\n    // mirrors of them except middle instead of center on Safari.\n\n    this.div = window.document.createElement(\"div\");\n    styles = {\n      direction: determineBidi(this.cueDiv),\n      writingMode: cue.vertical === \"\" ? \"horizontal-tb\" : cue.vertical === \"lr\" ? \"vertical-lr\" : \"vertical-rl\",\n      unicodeBidi: \"plaintext\",\n      textAlign: cue.align === \"middle\" ? \"center\" : cue.align,\n      font: styleOptions.font,\n      whiteSpace: \"pre-line\",\n      position: \"absolute\"\n    };\n    this.applyStyles(styles);\n    this.div.appendChild(this.cueDiv); // Calculate the distance from the reference edge of the viewport to the text\n    // position of the cue box. The reference edge will be resolved later when\n    // the box orientation styles are applied.\n\n    var textPos = 0;\n\n    switch (cue.positionAlign) {\n      case \"start\":\n        textPos = cue.position;\n        break;\n\n      case \"center\":\n        textPos = cue.position - cue.size / 2;\n        break;\n\n      case \"end\":\n        textPos = cue.position - cue.size;\n        break;\n    } // Horizontal box orientation; textPos is the distance from the left edge of the\n    // area to the left edge of the box and cue.size is the distance extending to\n    // the right from there.\n\n\n    if (cue.vertical === \"\") {\n      this.applyStyles({\n        left: this.formatStyle(textPos, \"%\"),\n        width: this.formatStyle(cue.size, \"%\")\n      }); // Vertical box orientation; textPos is the distance from the top edge of the\n      // area to the top edge of the box and cue.size is the height extending\n      // downwards from there.\n    } else {\n      this.applyStyles({\n        top: this.formatStyle(textPos, \"%\"),\n        height: this.formatStyle(cue.size, \"%\")\n      });\n    }\n\n    this.move = function (box) {\n      this.applyStyles({\n        top: this.formatStyle(box.top, \"px\"),\n        bottom: this.formatStyle(box.bottom, \"px\"),\n        left: this.formatStyle(box.left, \"px\"),\n        right: this.formatStyle(box.right, \"px\"),\n        height: this.formatStyle(box.height, \"px\"),\n        width: this.formatStyle(box.width, \"px\")\n      });\n    };\n  }\n\n  CueStyleBox.prototype = _objCreate(StyleBox.prototype);\n  CueStyleBox.prototype.constructor = CueStyleBox; // Represents the co-ordinates of an Element in a way that we can easily\n  // compute things with such as if it overlaps or intersects with another Element.\n  // Can initialize it with either a StyleBox or another BoxPosition.\n\n  function BoxPosition(obj) {\n    // Either a BoxPosition was passed in and we need to copy it, or a StyleBox\n    // was passed in and we need to copy the results of 'getBoundingClientRect'\n    // as the object returned is readonly. All co-ordinate values are in reference\n    // to the viewport origin (top left).\n    var lh, height, width, top;\n\n    if (obj.div) {\n      height = obj.div.offsetHeight;\n      width = obj.div.offsetWidth;\n      top = obj.div.offsetTop;\n      var rects = (rects = obj.div.childNodes) && (rects = rects[0]) && rects.getClientRects && rects.getClientRects();\n      obj = obj.div.getBoundingClientRect(); // In certain cases the outter div will be slightly larger then the sum of\n      // the inner div's lines. This could be due to bold text, etc, on some platforms.\n      // In this case we should get the average line height and use that. This will\n      // result in the desired behaviour.\n\n      lh = rects ? Math.max(rects[0] && rects[0].height || 0, obj.height / rects.length) : 0;\n    }\n\n    this.left = obj.left;\n    this.right = obj.right;\n    this.top = obj.top || top;\n    this.height = obj.height || height;\n    this.bottom = obj.bottom || top + (obj.height || height);\n    this.width = obj.width || width;\n    this.lineHeight = lh !== undefined ? lh : obj.lineHeight;\n  } // Move the box along a particular axis. Optionally pass in an amount to move\n  // the box. If no amount is passed then the default is the line height of the\n  // box.\n\n\n  BoxPosition.prototype.move = function (axis, toMove) {\n    toMove = toMove !== undefined ? toMove : this.lineHeight;\n\n    switch (axis) {\n      case \"+x\":\n        this.left += toMove;\n        this.right += toMove;\n        break;\n\n      case \"-x\":\n        this.left -= toMove;\n        this.right -= toMove;\n        break;\n\n      case \"+y\":\n        this.top += toMove;\n        this.bottom += toMove;\n        break;\n\n      case \"-y\":\n        this.top -= toMove;\n        this.bottom -= toMove;\n        break;\n    }\n  }; // Check if this box overlaps another box, b2.\n\n\n  BoxPosition.prototype.overlaps = function (b2) {\n    return this.left < b2.right && this.right > b2.left && this.top < b2.bottom && this.bottom > b2.top;\n  }; // Check if this box overlaps any other boxes in boxes.\n\n\n  BoxPosition.prototype.overlapsAny = function (boxes) {\n    for (var i = 0; i < boxes.length; i++) {\n      if (this.overlaps(boxes[i])) {\n        return true;\n      }\n    }\n\n    return false;\n  }; // Check if this box is within another box.\n\n\n  BoxPosition.prototype.within = function (container) {\n    return this.top >= container.top && this.bottom <= container.bottom && this.left >= container.left && this.right <= container.right;\n  }; // Check if this box is entirely within the container or it is overlapping\n  // on the edge opposite of the axis direction passed. For example, if \"+x\" is\n  // passed and the box is overlapping on the left edge of the container, then\n  // return true.\n\n\n  BoxPosition.prototype.overlapsOppositeAxis = function (container, axis) {\n    switch (axis) {\n      case \"+x\":\n        return this.left < container.left;\n\n      case \"-x\":\n        return this.right > container.right;\n\n      case \"+y\":\n        return this.top < container.top;\n\n      case \"-y\":\n        return this.bottom > container.bottom;\n    }\n  }; // Find the percentage of the area that this box is overlapping with another\n  // box.\n\n\n  BoxPosition.prototype.intersectPercentage = function (b2) {\n    var x = Math.max(0, Math.min(this.right, b2.right) - Math.max(this.left, b2.left)),\n        y = Math.max(0, Math.min(this.bottom, b2.bottom) - Math.max(this.top, b2.top)),\n        intersectArea = x * y;\n    return intersectArea / (this.height * this.width);\n  }; // Convert the positions from this box to CSS compatible positions using\n  // the reference container's positions. This has to be done because this\n  // box's positions are in reference to the viewport origin, whereas, CSS\n  // values are in referecne to their respective edges.\n\n\n  BoxPosition.prototype.toCSSCompatValues = function (reference) {\n    return {\n      top: this.top - reference.top,\n      bottom: reference.bottom - this.bottom,\n      left: this.left - reference.left,\n      right: reference.right - this.right,\n      height: this.height,\n      width: this.width\n    };\n  }; // Get an object that represents the box's position without anything extra.\n  // Can pass a StyleBox, HTMLElement, or another BoxPositon.\n\n\n  BoxPosition.getSimpleBoxPosition = function (obj) {\n    var height = obj.div ? obj.div.offsetHeight : obj.tagName ? obj.offsetHeight : 0;\n    var width = obj.div ? obj.div.offsetWidth : obj.tagName ? obj.offsetWidth : 0;\n    var top = obj.div ? obj.div.offsetTop : obj.tagName ? obj.offsetTop : 0;\n    obj = obj.div ? obj.div.getBoundingClientRect() : obj.tagName ? obj.getBoundingClientRect() : obj;\n    var ret = {\n      left: obj.left,\n      right: obj.right,\n      top: obj.top || top,\n      height: obj.height || height,\n      bottom: obj.bottom || top + (obj.height || height),\n      width: obj.width || width\n    };\n    return ret;\n  }; // Move a StyleBox to its specified, or next best, position. The containerBox\n  // is the box that contains the StyleBox, such as a div. boxPositions are\n  // a list of other boxes that the styleBox can't overlap with.\n\n\n  function moveBoxToLinePosition(window, styleBox, containerBox, boxPositions) {\n    // Find the best position for a cue box, b, on the video. The axis parameter\n    // is a list of axis, the order of which, it will move the box along. For example:\n    // Passing [\"+x\", \"-x\"] will move the box first along the x axis in the positive\n    // direction. If it doesn't find a good position for it there it will then move\n    // it along the x axis in the negative direction.\n    function findBestPosition(b, axis) {\n      var bestPosition,\n          specifiedPosition = new BoxPosition(b),\n          percentage = 1; // Highest possible so the first thing we get is better.\n\n      for (var i = 0; i < axis.length; i++) {\n        while (b.overlapsOppositeAxis(containerBox, axis[i]) || b.within(containerBox) && b.overlapsAny(boxPositions)) {\n          b.move(axis[i]);\n        } // We found a spot where we aren't overlapping anything. This is our\n        // best position.\n\n\n        if (b.within(containerBox)) {\n          return b;\n        }\n\n        var p = b.intersectPercentage(containerBox); // If we're outside the container box less then we were on our last try\n        // then remember this position as the best position.\n\n        if (percentage > p) {\n          bestPosition = new BoxPosition(b);\n          percentage = p;\n        } // Reset the box position to the specified position.\n\n\n        b = new BoxPosition(specifiedPosition);\n      }\n\n      return bestPosition || specifiedPosition;\n    }\n\n    var boxPosition = new BoxPosition(styleBox),\n        cue = styleBox.cue,\n        linePos = computeLinePos(cue),\n        axis = []; // If we have a line number to align the cue to.\n\n    if (cue.snapToLines) {\n      var size;\n\n      switch (cue.vertical) {\n        case \"\":\n          axis = [\"+y\", \"-y\"];\n          size = \"height\";\n          break;\n\n        case \"rl\":\n          axis = [\"+x\", \"-x\"];\n          size = \"width\";\n          break;\n\n        case \"lr\":\n          axis = [\"-x\", \"+x\"];\n          size = \"width\";\n          break;\n      }\n\n      var step = boxPosition.lineHeight,\n          position = step * Math.round(linePos),\n          maxPosition = containerBox[size] + step,\n          initialAxis = axis[0]; // If the specified intial position is greater then the max position then\n      // clamp the box to the amount of steps it would take for the box to\n      // reach the max position.\n\n      if (Math.abs(position) > maxPosition) {\n        position = position < 0 ? -1 : 1;\n        position *= Math.ceil(maxPosition / step) * step;\n      } // If computed line position returns negative then line numbers are\n      // relative to the bottom of the video instead of the top. Therefore, we\n      // need to increase our initial position by the length or width of the\n      // video, depending on the writing direction, and reverse our axis directions.\n\n\n      if (linePos < 0) {\n        position += cue.vertical === \"\" ? containerBox.height : containerBox.width;\n        axis = axis.reverse();\n      } // Move the box to the specified position. This may not be its best\n      // position.\n\n\n      boxPosition.move(initialAxis, position);\n    } else {\n      // If we have a percentage line value for the cue.\n      var calculatedPercentage = boxPosition.lineHeight / containerBox.height * 100;\n\n      switch (cue.lineAlign) {\n        case \"center\":\n          linePos -= calculatedPercentage / 2;\n          break;\n\n        case \"end\":\n          linePos -= calculatedPercentage;\n          break;\n      } // Apply initial line position to the cue box.\n\n\n      switch (cue.vertical) {\n        case \"\":\n          styleBox.applyStyles({\n            top: styleBox.formatStyle(linePos, \"%\")\n          });\n          break;\n\n        case \"rl\":\n          styleBox.applyStyles({\n            left: styleBox.formatStyle(linePos, \"%\")\n          });\n          break;\n\n        case \"lr\":\n          styleBox.applyStyles({\n            right: styleBox.formatStyle(linePos, \"%\")\n          });\n          break;\n      }\n\n      axis = [\"+y\", \"-x\", \"+x\", \"-y\"]; // Get the box position again after we've applied the specified positioning\n      // to it.\n\n      boxPosition = new BoxPosition(styleBox);\n    }\n\n    var bestPosition = findBestPosition(boxPosition, axis);\n    styleBox.move(bestPosition.toCSSCompatValues(containerBox));\n  }\n\n  function WebVTT$1() {// Nothing\n  } // Helper to allow strings to be decoded instead of the default binary utf8 data.\n\n\n  WebVTT$1.StringDecoder = function () {\n    return {\n      decode: function decode(data) {\n        if (!data) {\n          return \"\";\n        }\n\n        if (typeof data !== \"string\") {\n          throw new Error(\"Error - expected string data.\");\n        }\n\n        return decodeURIComponent(encodeURIComponent(data));\n      }\n    };\n  };\n\n  WebVTT$1.convertCueToDOMTree = function (window, cuetext) {\n    if (!window || !cuetext) {\n      return null;\n    }\n\n    return parseContent(window, cuetext);\n  };\n\n  var FONT_SIZE_PERCENT = 0.05;\n  var FONT_STYLE = \"sans-serif\";\n  var CUE_BACKGROUND_PADDING = \"1.5%\"; // Runs the processing model over the cues and regions passed to it.\n  // @param overlay A block level element (usually a div) that the computed cues\n  //                and regions will be placed into.\n\n  WebVTT$1.processCues = function (window, cues, overlay) {\n    if (!window || !cues || !overlay) {\n      return null;\n    } // Remove all previous children.\n\n\n    while (overlay.firstChild) {\n      overlay.removeChild(overlay.firstChild);\n    }\n\n    var paddedOverlay = window.document.createElement(\"div\");\n    paddedOverlay.style.position = \"absolute\";\n    paddedOverlay.style.left = \"0\";\n    paddedOverlay.style.right = \"0\";\n    paddedOverlay.style.top = \"0\";\n    paddedOverlay.style.bottom = \"0\";\n    paddedOverlay.style.margin = CUE_BACKGROUND_PADDING;\n    overlay.appendChild(paddedOverlay); // Determine if we need to compute the display states of the cues. This could\n    // be the case if a cue's state has been changed since the last computation or\n    // if it has not been computed yet.\n\n    function shouldCompute(cues) {\n      for (var i = 0; i < cues.length; i++) {\n        if (cues[i].hasBeenReset || !cues[i].displayState) {\n          return true;\n        }\n      }\n\n      return false;\n    } // We don't need to recompute the cues' display states. Just reuse them.\n\n\n    if (!shouldCompute(cues)) {\n      for (var i = 0; i < cues.length; i++) {\n        paddedOverlay.appendChild(cues[i].displayState);\n      }\n\n      return;\n    }\n\n    var boxPositions = [],\n        containerBox = BoxPosition.getSimpleBoxPosition(paddedOverlay),\n        fontSize = Math.round(containerBox.height * FONT_SIZE_PERCENT * 100) / 100;\n    var styleOptions = {\n      font: fontSize + \"px \" + FONT_STYLE\n    };\n\n    (function () {\n      var styleBox, cue;\n\n      for (var i = 0; i < cues.length; i++) {\n        cue = cues[i]; // Compute the intial position and styles of the cue div.\n\n        styleBox = new CueStyleBox(window, cue, styleOptions);\n        paddedOverlay.appendChild(styleBox.div); // Move the cue div to it's correct line position.\n\n        moveBoxToLinePosition(window, styleBox, containerBox, boxPositions); // Remember the computed div so that we don't have to recompute it later\n        // if we don't have too.\n\n        cue.displayState = styleBox.div;\n        boxPositions.push(BoxPosition.getSimpleBoxPosition(styleBox));\n      }\n    })();\n  };\n\n  WebVTT$1.Parser = function (window, vttjs, decoder) {\n    if (!decoder) {\n      decoder = vttjs;\n      vttjs = {};\n    }\n\n    if (!vttjs) {\n      vttjs = {};\n    }\n\n    this.window = window;\n    this.vttjs = vttjs;\n    this.state = \"INITIAL\";\n    this.buffer = \"\";\n    this.decoder = decoder || new TextDecoder(\"utf8\");\n    this.regionList = [];\n  };\n\n  WebVTT$1.Parser.prototype = {\n    // If the error is a ParsingError then report it to the consumer if\n    // possible. If it's not a ParsingError then throw it like normal.\n    reportOrThrowError: function reportOrThrowError(e) {\n      if (e instanceof ParsingError) {\n        this.onparsingerror && this.onparsingerror(e);\n      } else {\n        throw e;\n      }\n    },\n    parse: function parse(data) {\n      var self = this; // If there is no data then we won't decode it, but will just try to parse\n      // whatever is in buffer already. This may occur in circumstances, for\n      // example when flush() is called.\n\n      if (data) {\n        // Try to decode the data that we received.\n        self.buffer += self.decoder.decode(data, {\n          stream: true\n        });\n      }\n\n      function collectNextLine() {\n        var buffer = self.buffer;\n        var pos = 0;\n\n        while (pos < buffer.length && buffer[pos] !== '\\r' && buffer[pos] !== '\\n') {\n          ++pos;\n        }\n\n        var line = buffer.substr(0, pos); // Advance the buffer early in case we fail below.\n\n        if (buffer[pos] === '\\r') {\n          ++pos;\n        }\n\n        if (buffer[pos] === '\\n') {\n          ++pos;\n        }\n\n        self.buffer = buffer.substr(pos);\n        return line;\n      } // 3.4 WebVTT region and WebVTT region settings syntax\n\n\n      function parseRegion(input) {\n        var settings = new Settings();\n        parseOptions(input, function (k, v) {\n          switch (k) {\n            case \"id\":\n              settings.set(k, v);\n              break;\n\n            case \"width\":\n              settings.percent(k, v);\n              break;\n\n            case \"lines\":\n              settings.integer(k, v);\n              break;\n\n            case \"regionanchor\":\n            case \"viewportanchor\":\n              var xy = v.split(',');\n\n              if (xy.length !== 2) {\n                break;\n              } // We have to make sure both x and y parse, so use a temporary\n              // settings object here.\n\n\n              var anchor = new Settings();\n              anchor.percent(\"x\", xy[0]);\n              anchor.percent(\"y\", xy[1]);\n\n              if (!anchor.has(\"x\") || !anchor.has(\"y\")) {\n                break;\n              }\n\n              settings.set(k + \"X\", anchor.get(\"x\"));\n              settings.set(k + \"Y\", anchor.get(\"y\"));\n              break;\n\n            case \"scroll\":\n              settings.alt(k, v, [\"up\"]);\n              break;\n          }\n        }, /=/, /\\s/); // Create the region, using default values for any values that were not\n        // specified.\n\n        if (settings.has(\"id\")) {\n          var region = new (self.vttjs.VTTRegion || self.window.VTTRegion)();\n          region.width = settings.get(\"width\", 100);\n          region.lines = settings.get(\"lines\", 3);\n          region.regionAnchorX = settings.get(\"regionanchorX\", 0);\n          region.regionAnchorY = settings.get(\"regionanchorY\", 100);\n          region.viewportAnchorX = settings.get(\"viewportanchorX\", 0);\n          region.viewportAnchorY = settings.get(\"viewportanchorY\", 100);\n          region.scroll = settings.get(\"scroll\", \"\"); // Register the region.\n\n          self.onregion && self.onregion(region); // Remember the VTTRegion for later in case we parse any VTTCues that\n          // reference it.\n\n          self.regionList.push({\n            id: settings.get(\"id\"),\n            region: region\n          });\n        }\n      } // draft-pantos-http-live-streaming-20\n      // https://tools.ietf.org/html/draft-pantos-http-live-streaming-20#section-3.5\n      // 3.5 WebVTT\n\n\n      function parseTimestampMap(input) {\n        var settings = new Settings();\n        parseOptions(input, function (k, v) {\n          switch (k) {\n            case \"MPEGT\":\n              settings.integer(k + 'S', v);\n              break;\n\n            case \"LOCA\":\n              settings.set(k + 'L', parseTimeStamp(v));\n              break;\n          }\n        }, /[^\\d]:/, /,/);\n        self.ontimestampmap && self.ontimestampmap({\n          \"MPEGTS\": settings.get(\"MPEGTS\"),\n          \"LOCAL\": settings.get(\"LOCAL\")\n        });\n      } // 3.2 WebVTT metadata header syntax\n\n\n      function parseHeader(input) {\n        if (input.match(/X-TIMESTAMP-MAP/)) {\n          // This line contains HLS X-TIMESTAMP-MAP metadata\n          parseOptions(input, function (k, v) {\n            switch (k) {\n              case \"X-TIMESTAMP-MAP\":\n                parseTimestampMap(v);\n                break;\n            }\n          }, /=/);\n        } else {\n          parseOptions(input, function (k, v) {\n            switch (k) {\n              case \"Region\":\n                // 3.3 WebVTT region metadata header syntax\n                parseRegion(v);\n                break;\n            }\n          }, /:/);\n        }\n      } // 5.1 WebVTT file parsing.\n\n\n      try {\n        var line;\n\n        if (self.state === \"INITIAL\") {\n          // We can't start parsing until we have the first line.\n          if (!/\\r\\n|\\n/.test(self.buffer)) {\n            return this;\n          }\n\n          line = collectNextLine();\n          var m = line.match(/^WEBVTT([ \\t].*)?$/);\n\n          if (!m || !m[0]) {\n            throw new ParsingError(ParsingError.Errors.BadSignature);\n          }\n\n          self.state = \"HEADER\";\n        }\n\n        var alreadyCollectedLine = false;\n\n        while (self.buffer) {\n          // We can't parse a line until we have the full line.\n          if (!/\\r\\n|\\n/.test(self.buffer)) {\n            return this;\n          }\n\n          if (!alreadyCollectedLine) {\n            line = collectNextLine();\n          } else {\n            alreadyCollectedLine = false;\n          }\n\n          switch (self.state) {\n            case \"HEADER\":\n              // 13-18 - Allow a header (metadata) under the WEBVTT line.\n              if (/:/.test(line)) {\n                parseHeader(line);\n              } else if (!line) {\n                // An empty line terminates the header and starts the body (cues).\n                self.state = \"ID\";\n              }\n\n              continue;\n\n            case \"NOTE\":\n              // Ignore NOTE blocks.\n              if (!line) {\n                self.state = \"ID\";\n              }\n\n              continue;\n\n            case \"ID\":\n              // Check for the start of NOTE blocks.\n              if (/^NOTE($|[ \\t])/.test(line)) {\n                self.state = \"NOTE\";\n                break;\n              } // 19-29 - Allow any number of line terminators, then initialize new cue values.\n\n\n              if (!line) {\n                continue;\n              }\n\n              self.cue = new (self.vttjs.VTTCue || self.window.VTTCue)(0, 0, \"\"); // Safari still uses the old middle value and won't accept center\n\n              try {\n                self.cue.align = \"center\";\n              } catch (e) {\n                self.cue.align = \"middle\";\n              }\n\n              self.state = \"CUE\"; // 30-39 - Check if self line contains an optional identifier or timing data.\n\n              if (line.indexOf(\"-->\") === -1) {\n                self.cue.id = line;\n                continue;\n              }\n\n            // Process line as start of a cue.\n\n            /*falls through*/\n\n            case \"CUE\":\n              // 40 - Collect cue timings and settings.\n              try {\n                parseCue(line, self.cue, self.regionList);\n              } catch (e) {\n                self.reportOrThrowError(e); // In case of an error ignore rest of the cue.\n\n                self.cue = null;\n                self.state = \"BADCUE\";\n                continue;\n              }\n\n              self.state = \"CUETEXT\";\n              continue;\n\n            case \"CUETEXT\":\n              var hasSubstring = line.indexOf(\"-->\") !== -1; // 34 - If we have an empty line then report the cue.\n              // 35 - If we have the special substring '-->' then report the cue,\n              // but do not collect the line as we need to process the current\n              // one as a new cue.\n\n              if (!line || hasSubstring && (alreadyCollectedLine = true)) {\n                // We are done parsing self cue.\n                self.oncue && self.oncue(self.cue);\n                self.cue = null;\n                self.state = \"ID\";\n                continue;\n              }\n\n              if (self.cue.text) {\n                self.cue.text += \"\\n\";\n              }\n\n              self.cue.text += line.replace(/\\u2028/g, '\\n').replace(/u2029/g, '\\n');\n              continue;\n\n            case \"BADCUE\":\n              // BADCUE\n              // 54-62 - Collect and discard the remaining cue.\n              if (!line) {\n                self.state = \"ID\";\n              }\n\n              continue;\n          }\n        }\n      } catch (e) {\n        self.reportOrThrowError(e); // If we are currently parsing a cue, report what we have.\n\n        if (self.state === \"CUETEXT\" && self.cue && self.oncue) {\n          self.oncue(self.cue);\n        }\n\n        self.cue = null; // Enter BADWEBVTT state if header was not parsed correctly otherwise\n        // another exception occurred so enter BADCUE state.\n\n        self.state = self.state === \"INITIAL\" ? \"BADWEBVTT\" : \"BADCUE\";\n      }\n\n      return this;\n    },\n    flush: function flush() {\n      var self = this;\n\n      try {\n        // Finish decoding the stream.\n        self.buffer += self.decoder.decode(); // Synthesize the end of the current cue or region.\n\n        if (self.cue || self.state === \"HEADER\") {\n          self.buffer += \"\\n\\n\";\n          self.parse();\n        } // If we've flushed, parsed, and we're still on the INITIAL state then\n        // that means we don't have enough of the stream to parse the first\n        // line.\n\n\n        if (self.state === \"INITIAL\") {\n          throw new ParsingError(ParsingError.Errors.BadSignature);\n        }\n      } catch (e) {\n        self.reportOrThrowError(e);\n      }\n\n      self.onflush && self.onflush();\n      return this;\n    }\n  };\n  var vtt = WebVTT$1;\n\n  /**\n   * Copyright 2013 vtt.js Contributors\n   *\n   * Licensed under the Apache License, Version 2.0 (the \"License\");\n   * you may not use this file except in compliance with the License.\n   * You may obtain a copy of the License at\n   *\n   *   http://www.apache.org/licenses/LICENSE-2.0\n   *\n   * Unless required by applicable law or agreed to in writing, software\n   * distributed under the License is distributed on an \"AS IS\" BASIS,\n   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n   * See the License for the specific language governing permissions and\n   * limitations under the License.\n   */\n  var autoKeyword = \"auto\";\n  var directionSetting = {\n    \"\": 1,\n    \"lr\": 1,\n    \"rl\": 1\n  };\n  var alignSetting = {\n    \"start\": 1,\n    \"center\": 1,\n    \"end\": 1,\n    \"left\": 1,\n    \"right\": 1,\n    \"auto\": 1,\n    \"line-left\": 1,\n    \"line-right\": 1\n  };\n\n  function findDirectionSetting(value) {\n    if (typeof value !== \"string\") {\n      return false;\n    }\n\n    var dir = directionSetting[value.toLowerCase()];\n    return dir ? value.toLowerCase() : false;\n  }\n\n  function findAlignSetting(value) {\n    if (typeof value !== \"string\") {\n      return false;\n    }\n\n    var align = alignSetting[value.toLowerCase()];\n    return align ? value.toLowerCase() : false;\n  }\n\n  function VTTCue(startTime, endTime, text) {\n    /**\n     * Shim implementation specific properties. These properties are not in\n     * the spec.\n     */\n    // Lets us know when the VTTCue's data has changed in such a way that we need\n    // to recompute its display state. This lets us compute its display state\n    // lazily.\n    this.hasBeenReset = false;\n    /**\n     * VTTCue and TextTrackCue properties\n     * http://dev.w3.org/html5/webvtt/#vttcue-interface\n     */\n\n    var _id = \"\";\n    var _pauseOnExit = false;\n    var _startTime = startTime;\n    var _endTime = endTime;\n    var _text = text;\n    var _region = null;\n    var _vertical = \"\";\n    var _snapToLines = true;\n    var _line = \"auto\";\n    var _lineAlign = \"start\";\n    var _position = \"auto\";\n    var _positionAlign = \"auto\";\n    var _size = 100;\n    var _align = \"center\";\n    Object.defineProperties(this, {\n      \"id\": {\n        enumerable: true,\n        get: function get() {\n          return _id;\n        },\n        set: function set(value) {\n          _id = \"\" + value;\n        }\n      },\n      \"pauseOnExit\": {\n        enumerable: true,\n        get: function get() {\n          return _pauseOnExit;\n        },\n        set: function set(value) {\n          _pauseOnExit = !!value;\n        }\n      },\n      \"startTime\": {\n        enumerable: true,\n        get: function get() {\n          return _startTime;\n        },\n        set: function set(value) {\n          if (typeof value !== \"number\") {\n            throw new TypeError(\"Start time must be set to a number.\");\n          }\n\n          _startTime = value;\n          this.hasBeenReset = true;\n        }\n      },\n      \"endTime\": {\n        enumerable: true,\n        get: function get() {\n          return _endTime;\n        },\n        set: function set(value) {\n          if (typeof value !== \"number\") {\n            throw new TypeError(\"End time must be set to a number.\");\n          }\n\n          _endTime = value;\n          this.hasBeenReset = true;\n        }\n      },\n      \"text\": {\n        enumerable: true,\n        get: function get() {\n          return _text;\n        },\n        set: function set(value) {\n          _text = \"\" + value;\n          this.hasBeenReset = true;\n        }\n      },\n      \"region\": {\n        enumerable: true,\n        get: function get() {\n          return _region;\n        },\n        set: function set(value) {\n          _region = value;\n          this.hasBeenReset = true;\n        }\n      },\n      \"vertical\": {\n        enumerable: true,\n        get: function get() {\n          return _vertical;\n        },\n        set: function set(value) {\n          var setting = findDirectionSetting(value); // Have to check for false because the setting an be an empty string.\n\n          if (setting === false) {\n            throw new SyntaxError(\"Vertical: an invalid or illegal direction string was specified.\");\n          }\n\n          _vertical = setting;\n          this.hasBeenReset = true;\n        }\n      },\n      \"snapToLines\": {\n        enumerable: true,\n        get: function get() {\n          return _snapToLines;\n        },\n        set: function set(value) {\n          _snapToLines = !!value;\n          this.hasBeenReset = true;\n        }\n      },\n      \"line\": {\n        enumerable: true,\n        get: function get() {\n          return _line;\n        },\n        set: function set(value) {\n          if (typeof value !== \"number\" && value !== autoKeyword) {\n            throw new SyntaxError(\"Line: an invalid number or illegal string was specified.\");\n          }\n\n          _line = value;\n          this.hasBeenReset = true;\n        }\n      },\n      \"lineAlign\": {\n        enumerable: true,\n        get: function get() {\n          return _lineAlign;\n        },\n        set: function set(value) {\n          var setting = findAlignSetting(value);\n\n          if (!setting) {\n            console.warn(\"lineAlign: an invalid or illegal string was specified.\");\n          } else {\n            _lineAlign = setting;\n            this.hasBeenReset = true;\n          }\n        }\n      },\n      \"position\": {\n        enumerable: true,\n        get: function get() {\n          return _position;\n        },\n        set: function set(value) {\n          if (value < 0 || value > 100) {\n            throw new Error(\"Position must be between 0 and 100.\");\n          }\n\n          _position = value;\n          this.hasBeenReset = true;\n        }\n      },\n      \"positionAlign\": {\n        enumerable: true,\n        get: function get() {\n          return _positionAlign;\n        },\n        set: function set(value) {\n          var setting = findAlignSetting(value);\n\n          if (!setting) {\n            console.warn(\"positionAlign: an invalid or illegal string was specified.\");\n          } else {\n            _positionAlign = setting;\n            this.hasBeenReset = true;\n          }\n        }\n      },\n      \"size\": {\n        enumerable: true,\n        get: function get() {\n          return _size;\n        },\n        set: function set(value) {\n          if (value < 0 || value > 100) {\n            throw new Error(\"Size must be between 0 and 100.\");\n          }\n\n          _size = value;\n          this.hasBeenReset = true;\n        }\n      },\n      \"align\": {\n        enumerable: true,\n        get: function get() {\n          return _align;\n        },\n        set: function set(value) {\n          var setting = findAlignSetting(value);\n\n          if (!setting) {\n            throw new SyntaxError(\"align: an invalid or illegal alignment string was specified.\");\n          }\n\n          _align = setting;\n          this.hasBeenReset = true;\n        }\n      }\n    });\n    /**\n     * Other <track> spec defined properties\n     */\n    // http://www.whatwg.org/specs/web-apps/current-work/multipage/the-video-element.html#text-track-cue-display-state\n\n    this.displayState = undefined;\n  }\n  /**\n   * VTTCue methods\n   */\n\n\n  VTTCue.prototype.getCueAsHTML = function () {\n    // Assume WebVTT.convertCueToDOMTree is on the global.\n    return WebVTT.convertCueToDOMTree(window, this.text);\n  };\n\n  var vttcue = VTTCue;\n\n  /**\n   * Copyright 2013 vtt.js Contributors\n   *\n   * Licensed under the Apache License, Version 2.0 (the \"License\");\n   * you may not use this file except in compliance with the License.\n   * You may obtain a copy of the License at\n   *\n   *   http://www.apache.org/licenses/LICENSE-2.0\n   *\n   * Unless required by applicable law or agreed to in writing, software\n   * distributed under the License is distributed on an \"AS IS\" BASIS,\n   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n   * See the License for the specific language governing permissions and\n   * limitations under the License.\n   */\n  var scrollSetting = {\n    \"\": true,\n    \"up\": true\n  };\n\n  function findScrollSetting(value) {\n    if (typeof value !== \"string\") {\n      return false;\n    }\n\n    var scroll = scrollSetting[value.toLowerCase()];\n    return scroll ? value.toLowerCase() : false;\n  }\n\n  function isValidPercentValue(value) {\n    return typeof value === \"number\" && value >= 0 && value <= 100;\n  } // VTTRegion shim http://dev.w3.org/html5/webvtt/#vttregion-interface\n\n\n  function VTTRegion() {\n    var _width = 100;\n    var _lines = 3;\n    var _regionAnchorX = 0;\n    var _regionAnchorY = 100;\n    var _viewportAnchorX = 0;\n    var _viewportAnchorY = 100;\n    var _scroll = \"\";\n    Object.defineProperties(this, {\n      \"width\": {\n        enumerable: true,\n        get: function get() {\n          return _width;\n        },\n        set: function set(value) {\n          if (!isValidPercentValue(value)) {\n            throw new Error(\"Width must be between 0 and 100.\");\n          }\n\n          _width = value;\n        }\n      },\n      \"lines\": {\n        enumerable: true,\n        get: function get() {\n          return _lines;\n        },\n        set: function set(value) {\n          if (typeof value !== \"number\") {\n            throw new TypeError(\"Lines must be set to a number.\");\n          }\n\n          _lines = value;\n        }\n      },\n      \"regionAnchorY\": {\n        enumerable: true,\n        get: function get() {\n          return _regionAnchorY;\n        },\n        set: function set(value) {\n          if (!isValidPercentValue(value)) {\n            throw new Error(\"RegionAnchorX must be between 0 and 100.\");\n          }\n\n          _regionAnchorY = value;\n        }\n      },\n      \"regionAnchorX\": {\n        enumerable: true,\n        get: function get() {\n          return _regionAnchorX;\n        },\n        set: function set(value) {\n          if (!isValidPercentValue(value)) {\n            throw new Error(\"RegionAnchorY must be between 0 and 100.\");\n          }\n\n          _regionAnchorX = value;\n        }\n      },\n      \"viewportAnchorY\": {\n        enumerable: true,\n        get: function get() {\n          return _viewportAnchorY;\n        },\n        set: function set(value) {\n          if (!isValidPercentValue(value)) {\n            throw new Error(\"ViewportAnchorY must be between 0 and 100.\");\n          }\n\n          _viewportAnchorY = value;\n        }\n      },\n      \"viewportAnchorX\": {\n        enumerable: true,\n        get: function get() {\n          return _viewportAnchorX;\n        },\n        set: function set(value) {\n          if (!isValidPercentValue(value)) {\n            throw new Error(\"ViewportAnchorX must be between 0 and 100.\");\n          }\n\n          _viewportAnchorX = value;\n        }\n      },\n      \"scroll\": {\n        enumerable: true,\n        get: function get() {\n          return _scroll;\n        },\n        set: function set(value) {\n          var setting = findScrollSetting(value); // Have to check for false as an empty string is a legal value.\n\n          if (setting === false) {\n            console.warn(\"Scroll: an invalid or illegal string was specified.\");\n          } else {\n            _scroll = setting;\n          }\n        }\n      }\n    });\n  }\n\n  var vttregion = VTTRegion;\n\n  var browserIndex = createCommonjsModule(function (module) {\n    /**\n     * Copyright 2013 vtt.js Contributors\n     *\n     * Licensed under the Apache License, Version 2.0 (the \"License\");\n     * you may not use this file except in compliance with the License.\n     * You may obtain a copy of the License at\n     *\n     *   http://www.apache.org/licenses/LICENSE-2.0\n     *\n     * Unless required by applicable law or agreed to in writing, software\n     * distributed under the License is distributed on an \"AS IS\" BASIS,\n     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n     * See the License for the specific language governing permissions and\n     * limitations under the License.\n     */\n    // Default exports for Node. Export the extended versions of VTTCue and\n    // VTTRegion in Node since we likely want the capability to convert back and\n    // forth between JSON. If we don't then it's not that big of a deal since we're\n    // off browser.\n    var vttjs = module.exports = {\n      WebVTT: vtt,\n      VTTCue: vttcue,\n      VTTRegion: vttregion\n    };\n    window_1.vttjs = vttjs;\n    window_1.WebVTT = vttjs.WebVTT;\n    var cueShim = vttjs.VTTCue;\n    var regionShim = vttjs.VTTRegion;\n    var nativeVTTCue = window_1.VTTCue;\n    var nativeVTTRegion = window_1.VTTRegion;\n\n    vttjs.shim = function () {\n      window_1.VTTCue = cueShim;\n      window_1.VTTRegion = regionShim;\n    };\n\n    vttjs.restore = function () {\n      window_1.VTTCue = nativeVTTCue;\n      window_1.VTTRegion = nativeVTTRegion;\n    };\n\n    if (!window_1.VTTCue) {\n      vttjs.shim();\n    }\n  });\n  browserIndex.WebVTT;\n  browserIndex.VTTCue;\n  browserIndex.VTTRegion;\n\n  /**\n   * An Object containing a structure like: `{src: 'url', type: 'mimetype'}` or string\n   * that just contains the src url alone.\n   * * `var SourceObject = {src: 'http://ex.com/video.mp4', type: 'video/mp4'};`\n     * `var SourceString = 'http://example.com/some-video.mp4';`\n   *\n   * @typedef {Object|string} Tech~SourceObject\n   *\n   * @property {string} src\n   *           The url to the source\n   *\n   * @property {string} type\n   *           The mime type of the source\n   */\n\n  /**\n   * A function used by {@link Tech} to create a new {@link TextTrack}.\n   *\n   * @private\n   *\n   * @param {Tech} self\n   *        An instance of the Tech class.\n   *\n   * @param {string} kind\n   *        `TextTrack` kind (subtitles, captions, descriptions, chapters, or metadata)\n   *\n   * @param {string} [label]\n   *        Label to identify the text track\n   *\n   * @param {string} [language]\n   *        Two letter language abbreviation\n   *\n   * @param {Object} [options={}]\n   *        An object with additional text track options\n   *\n   * @return {TextTrack}\n   *          The text track that was created.\n   */\n\n  function createTrackHelper(self, kind, label, language, options) {\n    if (options === void 0) {\n      options = {};\n    }\n\n    var tracks = self.textTracks();\n    options.kind = kind;\n\n    if (label) {\n      options.label = label;\n    }\n\n    if (language) {\n      options.language = language;\n    }\n\n    options.tech = self;\n    var track = new ALL.text.TrackClass(options);\n    tracks.addTrack(track);\n    return track;\n  }\n  /**\n   * This is the base class for media playback technology controllers, such as\n   * {@link HTML5}\n   *\n   * @extends Component\n   */\n\n\n  var Tech = /*#__PURE__*/function (_Component) {\n    inheritsLoose(Tech, _Component);\n\n    /**\n    * Create an instance of this Tech.\n    *\n    * @param {Object} [options]\n    *        The key/value store of player options.\n    *\n    * @param {Component~ReadyCallback} ready\n    *        Callback function to call when the `HTML5` Tech is ready.\n    */\n    function Tech(options, ready) {\n      var _this;\n\n      if (options === void 0) {\n        options = {};\n      }\n\n      if (ready === void 0) {\n        ready = function ready() {};\n      }\n\n      // we don't want the tech to report user activity automatically.\n      // This is done manually in addControlsListeners\n      options.reportTouchActivity = false;\n      _this = _Component.call(this, null, options, ready) || this;\n\n      _this.onDurationChange_ = function (e) {\n        return _this.onDurationChange(e);\n      };\n\n      _this.trackProgress_ = function (e) {\n        return _this.trackProgress(e);\n      };\n\n      _this.trackCurrentTime_ = function (e) {\n        return _this.trackCurrentTime(e);\n      };\n\n      _this.stopTrackingCurrentTime_ = function (e) {\n        return _this.stopTrackingCurrentTime(e);\n      };\n\n      _this.disposeSourceHandler_ = function (e) {\n        return _this.disposeSourceHandler(e);\n      };\n\n      _this.queuedHanders_ = new Set(); // keep track of whether the current source has played at all to\n      // implement a very limited played()\n\n      _this.hasStarted_ = false;\n\n      _this.on('playing', function () {\n        this.hasStarted_ = true;\n      });\n\n      _this.on('loadstart', function () {\n        this.hasStarted_ = false;\n      });\n\n      ALL.names.forEach(function (name) {\n        var props = ALL[name];\n\n        if (options && options[props.getterName]) {\n          _this[props.privateName] = options[props.getterName];\n        }\n      }); // Manually track progress in cases where the browser/tech doesn't report it.\n\n      if (!_this.featuresProgressEvents) {\n        _this.manualProgressOn();\n      } // Manually track timeupdates in cases where the browser/tech doesn't report it.\n\n\n      if (!_this.featuresTimeupdateEvents) {\n        _this.manualTimeUpdatesOn();\n      }\n\n      ['Text', 'Audio', 'Video'].forEach(function (track) {\n        if (options[\"native\" + track + \"Tracks\"] === false) {\n          _this[\"featuresNative\" + track + \"Tracks\"] = false;\n        }\n      });\n\n      if (options.nativeCaptions === false || options.nativeTextTracks === false) {\n        _this.featuresNativeTextTracks = false;\n      } else if (options.nativeCaptions === true || options.nativeTextTracks === true) {\n        _this.featuresNativeTextTracks = true;\n      }\n\n      if (!_this.featuresNativeTextTracks) {\n        _this.emulateTextTracks();\n      }\n\n      _this.preloadTextTracks = options.preloadTextTracks !== false;\n      _this.autoRemoteTextTracks_ = new ALL.text.ListClass();\n\n      _this.initTrackListeners(); // Turn on component tap events only if not using native controls\n\n\n      if (!options.nativeControlsForTouch) {\n        _this.emitTapEvents();\n      }\n\n      if (_this.constructor) {\n        _this.name_ = _this.constructor.name || 'Unknown Tech';\n      }\n\n      return _this;\n    }\n    /**\n     * A special function to trigger source set in a way that will allow player\n     * to re-trigger if the player or tech are not ready yet.\n     *\n     * @fires Tech#sourceset\n     * @param {string} src The source string at the time of the source changing.\n     */\n\n\n    var _proto = Tech.prototype;\n\n    _proto.triggerSourceset = function triggerSourceset(src) {\n      var _this2 = this;\n\n      if (!this.isReady_) {\n        // on initial ready we have to trigger source set\n        // 1ms after ready so that player can watch for it.\n        this.one('ready', function () {\n          return _this2.setTimeout(function () {\n            return _this2.triggerSourceset(src);\n          }, 1);\n        });\n      }\n      /**\n       * Fired when the source is set on the tech causing the media element\n       * to reload.\n       *\n       * @see {@link Player#event:sourceset}\n       * @event Tech#sourceset\n       * @type {EventTarget~Event}\n       */\n\n\n      this.trigger({\n        src: src,\n        type: 'sourceset'\n      });\n    }\n    /* Fallbacks for unsupported event types\n    ================================================================================ */\n\n    /**\n     * Polyfill the `progress` event for browsers that don't support it natively.\n     *\n     * @see {@link Tech#trackProgress}\n     */\n    ;\n\n    _proto.manualProgressOn = function manualProgressOn() {\n      this.on('durationchange', this.onDurationChange_);\n      this.manualProgress = true; // Trigger progress watching when a source begins loading\n\n      this.one('ready', this.trackProgress_);\n    }\n    /**\n     * Turn off the polyfill for `progress` events that was created in\n     * {@link Tech#manualProgressOn}\n     */\n    ;\n\n    _proto.manualProgressOff = function manualProgressOff() {\n      this.manualProgress = false;\n      this.stopTrackingProgress();\n      this.off('durationchange', this.onDurationChange_);\n    }\n    /**\n     * This is used to trigger a `progress` event when the buffered percent changes. It\n     * sets an interval function that will be called every 500 milliseconds to check if the\n     * buffer end percent has changed.\n     *\n     * > This function is called by {@link Tech#manualProgressOn}\n     *\n     * @param {EventTarget~Event} event\n     *        The `ready` event that caused this to run.\n     *\n     * @listens Tech#ready\n     * @fires Tech#progress\n     */\n    ;\n\n    _proto.trackProgress = function trackProgress(event) {\n      this.stopTrackingProgress();\n      this.progressInterval = this.setInterval(bind(this, function () {\n        // Don't trigger unless buffered amount is greater than last time\n        var numBufferedPercent = this.bufferedPercent();\n\n        if (this.bufferedPercent_ !== numBufferedPercent) {\n          /**\n           * See {@link Player#progress}\n           *\n           * @event Tech#progress\n           * @type {EventTarget~Event}\n           */\n          this.trigger('progress');\n        }\n\n        this.bufferedPercent_ = numBufferedPercent;\n\n        if (numBufferedPercent === 1) {\n          this.stopTrackingProgress();\n        }\n      }), 500);\n    }\n    /**\n     * Update our internal duration on a `durationchange` event by calling\n     * {@link Tech#duration}.\n     *\n     * @param {EventTarget~Event} event\n     *        The `durationchange` event that caused this to run.\n     *\n     * @listens Tech#durationchange\n     */\n    ;\n\n    _proto.onDurationChange = function onDurationChange(event) {\n      this.duration_ = this.duration();\n    }\n    /**\n     * Get and create a `TimeRange` object for buffering.\n     *\n     * @return {TimeRange}\n     *         The time range object that was created.\n     */\n    ;\n\n    _proto.buffered = function buffered() {\n      return createTimeRanges(0, 0);\n    }\n    /**\n     * Get the percentage of the current video that is currently buffered.\n     *\n     * @return {number}\n     *         A number from 0 to 1 that represents the decimal percentage of the\n     *         video that is buffered.\n     *\n     */\n    ;\n\n    _proto.bufferedPercent = function bufferedPercent$1() {\n      return bufferedPercent(this.buffered(), this.duration_);\n    }\n    /**\n     * Turn off the polyfill for `progress` events that was created in\n     * {@link Tech#manualProgressOn}\n     * Stop manually tracking progress events by clearing the interval that was set in\n     * {@link Tech#trackProgress}.\n     */\n    ;\n\n    _proto.stopTrackingProgress = function stopTrackingProgress() {\n      this.clearInterval(this.progressInterval);\n    }\n    /**\n     * Polyfill the `timeupdate` event for browsers that don't support it.\n     *\n     * @see {@link Tech#trackCurrentTime}\n     */\n    ;\n\n    _proto.manualTimeUpdatesOn = function manualTimeUpdatesOn() {\n      this.manualTimeUpdates = true;\n      this.on('play', this.trackCurrentTime_);\n      this.on('pause', this.stopTrackingCurrentTime_);\n    }\n    /**\n     * Turn off the polyfill for `timeupdate` events that was created in\n     * {@link Tech#manualTimeUpdatesOn}\n     */\n    ;\n\n    _proto.manualTimeUpdatesOff = function manualTimeUpdatesOff() {\n      this.manualTimeUpdates = false;\n      this.stopTrackingCurrentTime();\n      this.off('play', this.trackCurrentTime_);\n      this.off('pause', this.stopTrackingCurrentTime_);\n    }\n    /**\n     * Sets up an interval function to track current time and trigger `timeupdate` every\n     * 250 milliseconds.\n     *\n     * @listens Tech#play\n     * @triggers Tech#timeupdate\n     */\n    ;\n\n    _proto.trackCurrentTime = function trackCurrentTime() {\n      if (this.currentTimeInterval) {\n        this.stopTrackingCurrentTime();\n      }\n\n      this.currentTimeInterval = this.setInterval(function () {\n        /**\n         * Triggered at an interval of 250ms to indicated that time is passing in the video.\n         *\n         * @event Tech#timeupdate\n         * @type {EventTarget~Event}\n         */\n        this.trigger({\n          type: 'timeupdate',\n          target: this,\n          manuallyTriggered: true\n        }); // 42 = 24 fps // 250 is what Webkit uses // FF uses 15\n      }, 250);\n    }\n    /**\n     * Stop the interval function created in {@link Tech#trackCurrentTime} so that the\n     * `timeupdate` event is no longer triggered.\n     *\n     * @listens {Tech#pause}\n     */\n    ;\n\n    _proto.stopTrackingCurrentTime = function stopTrackingCurrentTime() {\n      this.clearInterval(this.currentTimeInterval); // #1002 - if the video ends right before the next timeupdate would happen,\n      // the progress bar won't make it all the way to the end\n\n      this.trigger({\n        type: 'timeupdate',\n        target: this,\n        manuallyTriggered: true\n      });\n    }\n    /**\n     * Turn off all event polyfills, clear the `Tech`s {@link AudioTrackList},\n     * {@link VideoTrackList}, and {@link TextTrackList}, and dispose of this Tech.\n     *\n     * @fires Component#dispose\n     */\n    ;\n\n    _proto.dispose = function dispose() {\n      // clear out all tracks because we can't reuse them between techs\n      this.clearTracks(NORMAL.names); // Turn off any manual progress or timeupdate tracking\n\n      if (this.manualProgress) {\n        this.manualProgressOff();\n      }\n\n      if (this.manualTimeUpdates) {\n        this.manualTimeUpdatesOff();\n      }\n\n      _Component.prototype.dispose.call(this);\n    }\n    /**\n     * Clear out a single `TrackList` or an array of `TrackLists` given their names.\n     *\n     * > Note: Techs without source handlers should call this between sources for `video`\n     *         & `audio` tracks. You don't want to use them between tracks!\n     *\n     * @param {string[]|string} types\n     *        TrackList names to clear, valid names are `video`, `audio`, and\n     *        `text`.\n     */\n    ;\n\n    _proto.clearTracks = function clearTracks(types) {\n      var _this3 = this;\n\n      types = [].concat(types); // clear out all tracks because we can't reuse them between techs\n\n      types.forEach(function (type) {\n        var list = _this3[type + \"Tracks\"]() || [];\n        var i = list.length;\n\n        while (i--) {\n          var track = list[i];\n\n          if (type === 'text') {\n            _this3.removeRemoteTextTrack(track);\n          }\n\n          list.removeTrack(track);\n        }\n      });\n    }\n    /**\n     * Remove any TextTracks added via addRemoteTextTrack that are\n     * flagged for automatic garbage collection\n     */\n    ;\n\n    _proto.cleanupAutoTextTracks = function cleanupAutoTextTracks() {\n      var list = this.autoRemoteTextTracks_ || [];\n      var i = list.length;\n\n      while (i--) {\n        var track = list[i];\n        this.removeRemoteTextTrack(track);\n      }\n    }\n    /**\n     * Reset the tech, which will removes all sources and reset the internal readyState.\n     *\n     * @abstract\n     */\n    ;\n\n    _proto.reset = function reset() {}\n    /**\n     * Get the value of `crossOrigin` from the tech.\n     *\n     * @abstract\n     *\n     * @see {Html5#crossOrigin}\n     */\n    ;\n\n    _proto.crossOrigin = function crossOrigin() {}\n    /**\n     * Set the value of `crossOrigin` on the tech.\n     *\n     * @abstract\n     *\n     * @param {string} crossOrigin the crossOrigin value\n     * @see {Html5#setCrossOrigin}\n     */\n    ;\n\n    _proto.setCrossOrigin = function setCrossOrigin() {}\n    /**\n     * Get or set an error on the Tech.\n     *\n     * @param {MediaError} [err]\n     *        Error to set on the Tech\n     *\n     * @return {MediaError|null}\n     *         The current error object on the tech, or null if there isn't one.\n     */\n    ;\n\n    _proto.error = function error(err) {\n      if (err !== undefined) {\n        this.error_ = new MediaError(err);\n        this.trigger('error');\n      }\n\n      return this.error_;\n    }\n    /**\n     * Returns the `TimeRange`s that have been played through for the current source.\n     *\n     * > NOTE: This implementation is incomplete. It does not track the played `TimeRange`.\n     *         It only checks whether the source has played at all or not.\n     *\n     * @return {TimeRange}\n     *         - A single time range if this video has played\n     *         - An empty set of ranges if not.\n     */\n    ;\n\n    _proto.played = function played() {\n      if (this.hasStarted_) {\n        return createTimeRanges(0, 0);\n      }\n\n      return createTimeRanges();\n    }\n    /**\n     * Start playback\n     *\n     * @abstract\n     *\n     * @see {Html5#play}\n     */\n    ;\n\n    _proto.play = function play() {}\n    /**\n     * Set whether we are scrubbing or not\n     *\n     * @abstract\n     *\n     * @see {Html5#setScrubbing}\n     */\n    ;\n\n    _proto.setScrubbing = function setScrubbing() {}\n    /**\n     * Get whether we are scrubbing or not\n     *\n     * @abstract\n     *\n     * @see {Html5#scrubbing}\n     */\n    ;\n\n    _proto.scrubbing = function scrubbing() {}\n    /**\n     * Causes a manual time update to occur if {@link Tech#manualTimeUpdatesOn} was\n     * previously called.\n     *\n     * @fires Tech#timeupdate\n     */\n    ;\n\n    _proto.setCurrentTime = function setCurrentTime() {\n      // improve the accuracy of manual timeupdates\n      if (this.manualTimeUpdates) {\n        /**\n         * A manual `timeupdate` event.\n         *\n         * @event Tech#timeupdate\n         * @type {EventTarget~Event}\n         */\n        this.trigger({\n          type: 'timeupdate',\n          target: this,\n          manuallyTriggered: true\n        });\n      }\n    }\n    /**\n     * Turn on listeners for {@link VideoTrackList}, {@link {AudioTrackList}, and\n     * {@link TextTrackList} events.\n     *\n     * This adds {@link EventTarget~EventListeners} for `addtrack`, and  `removetrack`.\n     *\n     * @fires Tech#audiotrackchange\n     * @fires Tech#videotrackchange\n     * @fires Tech#texttrackchange\n     */\n    ;\n\n    _proto.initTrackListeners = function initTrackListeners() {\n      var _this4 = this;\n\n      /**\n        * Triggered when tracks are added or removed on the Tech {@link AudioTrackList}\n        *\n        * @event Tech#audiotrackchange\n        * @type {EventTarget~Event}\n        */\n\n      /**\n        * Triggered when tracks are added or removed on the Tech {@link VideoTrackList}\n        *\n        * @event Tech#videotrackchange\n        * @type {EventTarget~Event}\n        */\n\n      /**\n        * Triggered when tracks are added or removed on the Tech {@link TextTrackList}\n        *\n        * @event Tech#texttrackchange\n        * @type {EventTarget~Event}\n        */\n      NORMAL.names.forEach(function (name) {\n        var props = NORMAL[name];\n\n        var trackListChanges = function trackListChanges() {\n          _this4.trigger(name + \"trackchange\");\n        };\n\n        var tracks = _this4[props.getterName]();\n\n        tracks.addEventListener('removetrack', trackListChanges);\n        tracks.addEventListener('addtrack', trackListChanges);\n\n        _this4.on('dispose', function () {\n          tracks.removeEventListener('removetrack', trackListChanges);\n          tracks.removeEventListener('addtrack', trackListChanges);\n        });\n      });\n    }\n    /**\n     * Emulate TextTracks using vtt.js if necessary\n     *\n     * @fires Tech#vttjsloaded\n     * @fires Tech#vttjserror\n     */\n    ;\n\n    _proto.addWebVttScript_ = function addWebVttScript_() {\n      var _this5 = this;\n\n      if (window.WebVTT) {\n        return;\n      } // Initially, Tech.el_ is a child of a dummy-div wait until the Component system\n      // signals that the Tech is ready at which point Tech.el_ is part of the DOM\n      // before inserting the WebVTT script\n\n\n      if (document.body.contains(this.el())) {\n        // load via require if available and vtt.js script location was not passed in\n        // as an option. novtt builds will turn the above require call into an empty object\n        // which will cause this if check to always fail.\n        if (!this.options_['vtt.js'] && isPlain(browserIndex) && Object.keys(browserIndex).length > 0) {\n          this.trigger('vttjsloaded');\n          return;\n        } // load vtt.js via the script location option or the cdn of no location was\n        // passed in\n\n\n        var script = document.createElement('script');\n        script.src = this.options_['vtt.js'] || 'https://vjs.zencdn.net/vttjs/0.14.1/vtt.min.js';\n\n        script.onload = function () {\n          /**\n           * Fired when vtt.js is loaded.\n           *\n           * @event Tech#vttjsloaded\n           * @type {EventTarget~Event}\n           */\n          _this5.trigger('vttjsloaded');\n        };\n\n        script.onerror = function () {\n          /**\n           * Fired when vtt.js was not loaded due to an error\n           *\n           * @event Tech#vttjsloaded\n           * @type {EventTarget~Event}\n           */\n          _this5.trigger('vttjserror');\n        };\n\n        this.on('dispose', function () {\n          script.onload = null;\n          script.onerror = null;\n        }); // but have not loaded yet and we set it to true before the inject so that\n        // we don't overwrite the injected window.WebVTT if it loads right away\n\n        window.WebVTT = true;\n        this.el().parentNode.appendChild(script);\n      } else {\n        this.ready(this.addWebVttScript_);\n      }\n    }\n    /**\n     * Emulate texttracks\n     *\n     */\n    ;\n\n    _proto.emulateTextTracks = function emulateTextTracks() {\n      var _this6 = this;\n\n      var tracks = this.textTracks();\n      var remoteTracks = this.remoteTextTracks();\n\n      var handleAddTrack = function handleAddTrack(e) {\n        return tracks.addTrack(e.track);\n      };\n\n      var handleRemoveTrack = function handleRemoveTrack(e) {\n        return tracks.removeTrack(e.track);\n      };\n\n      remoteTracks.on('addtrack', handleAddTrack);\n      remoteTracks.on('removetrack', handleRemoveTrack);\n      this.addWebVttScript_();\n\n      var updateDisplay = function updateDisplay() {\n        return _this6.trigger('texttrackchange');\n      };\n\n      var textTracksChanges = function textTracksChanges() {\n        updateDisplay();\n\n        for (var i = 0; i < tracks.length; i++) {\n          var track = tracks[i];\n          track.removeEventListener('cuechange', updateDisplay);\n\n          if (track.mode === 'showing') {\n            track.addEventListener('cuechange', updateDisplay);\n          }\n        }\n      };\n\n      textTracksChanges();\n      tracks.addEventListener('change', textTracksChanges);\n      tracks.addEventListener('addtrack', textTracksChanges);\n      tracks.addEventListener('removetrack', textTracksChanges);\n      this.on('dispose', function () {\n        remoteTracks.off('addtrack', handleAddTrack);\n        remoteTracks.off('removetrack', handleRemoveTrack);\n        tracks.removeEventListener('change', textTracksChanges);\n        tracks.removeEventListener('addtrack', textTracksChanges);\n        tracks.removeEventListener('removetrack', textTracksChanges);\n\n        for (var i = 0; i < tracks.length; i++) {\n          var track = tracks[i];\n          track.removeEventListener('cuechange', updateDisplay);\n        }\n      });\n    }\n    /**\n     * Create and returns a remote {@link TextTrack} object.\n     *\n     * @param {string} kind\n     *        `TextTrack` kind (subtitles, captions, descriptions, chapters, or metadata)\n     *\n     * @param {string} [label]\n     *        Label to identify the text track\n     *\n     * @param {string} [language]\n     *        Two letter language abbreviation\n     *\n     * @return {TextTrack}\n     *         The TextTrack that gets created.\n     */\n    ;\n\n    _proto.addTextTrack = function addTextTrack(kind, label, language) {\n      if (!kind) {\n        throw new Error('TextTrack kind is required but was not provided');\n      }\n\n      return createTrackHelper(this, kind, label, language);\n    }\n    /**\n     * Create an emulated TextTrack for use by addRemoteTextTrack\n     *\n     * This is intended to be overridden by classes that inherit from\n     * Tech in order to create native or custom TextTracks.\n     *\n     * @param {Object} options\n     *        The object should contain the options to initialize the TextTrack with.\n     *\n     * @param {string} [options.kind]\n     *        `TextTrack` kind (subtitles, captions, descriptions, chapters, or metadata).\n     *\n     * @param {string} [options.label].\n     *        Label to identify the text track\n     *\n     * @param {string} [options.language]\n     *        Two letter language abbreviation.\n     *\n     * @return {HTMLTrackElement}\n     *         The track element that gets created.\n     */\n    ;\n\n    _proto.createRemoteTextTrack = function createRemoteTextTrack(options) {\n      var track = mergeOptions$3(options, {\n        tech: this\n      });\n      return new REMOTE.remoteTextEl.TrackClass(track);\n    }\n    /**\n     * Creates a remote text track object and returns an html track element.\n     *\n     * > Note: This can be an emulated {@link HTMLTrackElement} or a native one.\n     *\n     * @param {Object} options\n     *        See {@link Tech#createRemoteTextTrack} for more detailed properties.\n     *\n     * @param {boolean} [manualCleanup=true]\n     *        - When false: the TextTrack will be automatically removed from the video\n     *          element whenever the source changes\n     *        - When True: The TextTrack will have to be cleaned up manually\n     *\n     * @return {HTMLTrackElement}\n     *         An Html Track Element.\n     *\n     * @deprecated The default functionality for this function will be equivalent\n     *             to \"manualCleanup=false\" in the future. The manualCleanup parameter will\n     *             also be removed.\n     */\n    ;\n\n    _proto.addRemoteTextTrack = function addRemoteTextTrack(options, manualCleanup) {\n      var _this7 = this;\n\n      if (options === void 0) {\n        options = {};\n      }\n\n      var htmlTrackElement = this.createRemoteTextTrack(options);\n\n      if (manualCleanup !== true && manualCleanup !== false) {\n        // deprecation warning\n        log$1.warn('Calling addRemoteTextTrack without explicitly setting the \"manualCleanup\" parameter to `true` is deprecated and default to `false` in future version of video.js');\n        manualCleanup = true;\n      } // store HTMLTrackElement and TextTrack to remote list\n\n\n      this.remoteTextTrackEls().addTrackElement_(htmlTrackElement);\n      this.remoteTextTracks().addTrack(htmlTrackElement.track);\n\n      if (manualCleanup !== true) {\n        // create the TextTrackList if it doesn't exist\n        this.ready(function () {\n          return _this7.autoRemoteTextTracks_.addTrack(htmlTrackElement.track);\n        });\n      }\n\n      return htmlTrackElement;\n    }\n    /**\n     * Remove a remote text track from the remote `TextTrackList`.\n     *\n     * @param {TextTrack} track\n     *        `TextTrack` to remove from the `TextTrackList`\n     */\n    ;\n\n    _proto.removeRemoteTextTrack = function removeRemoteTextTrack(track) {\n      var trackElement = this.remoteTextTrackEls().getTrackElementByTrack_(track); // remove HTMLTrackElement and TextTrack from remote list\n\n      this.remoteTextTrackEls().removeTrackElement_(trackElement);\n      this.remoteTextTracks().removeTrack(track);\n      this.autoRemoteTextTracks_.removeTrack(track);\n    }\n    /**\n     * Gets available media playback quality metrics as specified by the W3C's Media\n     * Playback Quality API.\n     *\n     * @see [Spec]{@link https://wicg.github.io/media-playback-quality}\n     *\n     * @return {Object}\n     *         An object with supported media playback quality metrics\n     *\n     * @abstract\n     */\n    ;\n\n    _proto.getVideoPlaybackQuality = function getVideoPlaybackQuality() {\n      return {};\n    }\n    /**\n     * Attempt to create a floating video window always on top of other windows\n     * so that users may continue consuming media while they interact with other\n     * content sites, or applications on their device.\n     *\n     * @see [Spec]{@link https://wicg.github.io/picture-in-picture}\n     *\n     * @return {Promise|undefined}\n     *         A promise with a Picture-in-Picture window if the browser supports\n     *         Promises (or one was passed in as an option). It returns undefined\n     *         otherwise.\n     *\n     * @abstract\n     */\n    ;\n\n    _proto.requestPictureInPicture = function requestPictureInPicture() {\n      var PromiseClass = this.options_.Promise || window.Promise;\n\n      if (PromiseClass) {\n        return PromiseClass.reject();\n      }\n    }\n    /**\n     * A method to check for the value of the 'disablePictureInPicture' <video> property.\n     * Defaults to true, as it should be considered disabled if the tech does not support pip\n     *\n     * @abstract\n     */\n    ;\n\n    _proto.disablePictureInPicture = function disablePictureInPicture() {\n      return true;\n    }\n    /**\n     * A method to set or unset the 'disablePictureInPicture' <video> property.\n     *\n     * @abstract\n     */\n    ;\n\n    _proto.setDisablePictureInPicture = function setDisablePictureInPicture() {}\n    /**\n     * A fallback implementation of requestVideoFrameCallback using requestAnimationFrame\n     *\n     * @param {function} cb\n     * @return {number} request id\n     */\n    ;\n\n    _proto.requestVideoFrameCallback = function requestVideoFrameCallback(cb) {\n      var _this8 = this;\n\n      var id = newGUID();\n\n      if (!this.isReady_ || this.paused()) {\n        this.queuedHanders_.add(id);\n        this.one('playing', function () {\n          if (_this8.queuedHanders_.has(id)) {\n            _this8.queuedHanders_[\"delete\"](id);\n\n            cb();\n          }\n        });\n      } else {\n        this.requestNamedAnimationFrame(id, cb);\n      }\n\n      return id;\n    }\n    /**\n     * A fallback implementation of cancelVideoFrameCallback\n     *\n     * @param {number} id id of callback to be cancelled\n     */\n    ;\n\n    _proto.cancelVideoFrameCallback = function cancelVideoFrameCallback(id) {\n      if (this.queuedHanders_.has(id)) {\n        this.queuedHanders_[\"delete\"](id);\n      } else {\n        this.cancelNamedAnimationFrame(id);\n      }\n    }\n    /**\n     * A method to set a poster from a `Tech`.\n     *\n     * @abstract\n     */\n    ;\n\n    _proto.setPoster = function setPoster() {}\n    /**\n     * A method to check for the presence of the 'playsinline' <video> attribute.\n     *\n     * @abstract\n     */\n    ;\n\n    _proto.playsinline = function playsinline() {}\n    /**\n     * A method to set or unset the 'playsinline' <video> attribute.\n     *\n     * @abstract\n     */\n    ;\n\n    _proto.setPlaysinline = function setPlaysinline() {}\n    /**\n     * Attempt to force override of native audio tracks.\n     *\n     * @param {boolean} override - If set to true native audio will be overridden,\n     * otherwise native audio will potentially be used.\n     *\n     * @abstract\n     */\n    ;\n\n    _proto.overrideNativeAudioTracks = function overrideNativeAudioTracks() {}\n    /**\n     * Attempt to force override of native video tracks.\n     *\n     * @param {boolean} override - If set to true native video will be overridden,\n     * otherwise native video will potentially be used.\n     *\n     * @abstract\n     */\n    ;\n\n    _proto.overrideNativeVideoTracks = function overrideNativeVideoTracks() {}\n    /*\n     * Check if the tech can support the given mime-type.\n     *\n     * The base tech does not support any type, but source handlers might\n     * overwrite this.\n     *\n     * @param  {string} type\n     *         The mimetype to check for support\n     *\n     * @return {string}\n     *         'probably', 'maybe', or empty string\n     *\n     * @see [Spec]{@link https://developer.mozilla.org/en-US/docs/Web/API/HTMLMediaElement/canPlayType}\n     *\n     * @abstract\n     */\n    ;\n\n    _proto.canPlayType = function canPlayType() {\n      return '';\n    }\n    /**\n     * Check if the type is supported by this tech.\n     *\n     * The base tech does not support any type, but source handlers might\n     * overwrite this.\n     *\n     * @param {string} type\n     *        The media type to check\n     * @return {string} Returns the native video element's response\n     */\n    ;\n\n    Tech.canPlayType = function canPlayType() {\n      return '';\n    }\n    /**\n     * Check if the tech can support the given source\n     *\n     * @param {Object} srcObj\n     *        The source object\n     * @param {Object} options\n     *        The options passed to the tech\n     * @return {string} 'probably', 'maybe', or '' (empty string)\n     */\n    ;\n\n    Tech.canPlaySource = function canPlaySource(srcObj, options) {\n      return Tech.canPlayType(srcObj.type);\n    }\n    /*\n     * Return whether the argument is a Tech or not.\n     * Can be passed either a Class like `Html5` or a instance like `player.tech_`\n     *\n     * @param {Object} component\n     *        The item to check\n     *\n     * @return {boolean}\n     *         Whether it is a tech or not\n     *         - True if it is a tech\n     *         - False if it is not\n     */\n    ;\n\n    Tech.isTech = function isTech(component) {\n      return component.prototype instanceof Tech || component instanceof Tech || component === Tech;\n    }\n    /**\n     * Registers a `Tech` into a shared list for videojs.\n     *\n     * @param {string} name\n     *        Name of the `Tech` to register.\n     *\n     * @param {Object} tech\n     *        The `Tech` class to register.\n     */\n    ;\n\n    Tech.registerTech = function registerTech(name, tech) {\n      if (!Tech.techs_) {\n        Tech.techs_ = {};\n      }\n\n      if (!Tech.isTech(tech)) {\n        throw new Error(\"Tech \" + name + \" must be a Tech\");\n      }\n\n      if (!Tech.canPlayType) {\n        throw new Error('Techs must have a static canPlayType method on them');\n      }\n\n      if (!Tech.canPlaySource) {\n        throw new Error('Techs must have a static canPlaySource method on them');\n      }\n\n      name = toTitleCase$1(name);\n      Tech.techs_[name] = tech;\n      Tech.techs_[toLowerCase(name)] = tech;\n\n      if (name !== 'Tech') {\n        // camel case the techName for use in techOrder\n        Tech.defaultTechOrder_.push(name);\n      }\n\n      return tech;\n    }\n    /**\n     * Get a `Tech` from the shared list by name.\n     *\n     * @param {string} name\n     *        `camelCase` or `TitleCase` name of the Tech to get\n     *\n     * @return {Tech|undefined}\n     *         The `Tech` or undefined if there was no tech with the name requested.\n     */\n    ;\n\n    Tech.getTech = function getTech(name) {\n      if (!name) {\n        return;\n      }\n\n      if (Tech.techs_ && Tech.techs_[name]) {\n        return Tech.techs_[name];\n      }\n\n      name = toTitleCase$1(name);\n\n      if (window && window.videojs && window.videojs[name]) {\n        log$1.warn(\"The \" + name + \" tech was added to the videojs object when it should be registered using videojs.registerTech(name, tech)\");\n        return window.videojs[name];\n      }\n    };\n\n    return Tech;\n  }(Component$1);\n  /**\n   * Get the {@link VideoTrackList}\n   *\n   * @returns {VideoTrackList}\n   * @method Tech.prototype.videoTracks\n   */\n\n  /**\n   * Get the {@link AudioTrackList}\n   *\n   * @returns {AudioTrackList}\n   * @method Tech.prototype.audioTracks\n   */\n\n  /**\n   * Get the {@link TextTrackList}\n   *\n   * @returns {TextTrackList}\n   * @method Tech.prototype.textTracks\n   */\n\n  /**\n   * Get the remote element {@link TextTrackList}\n   *\n   * @returns {TextTrackList}\n   * @method Tech.prototype.remoteTextTracks\n   */\n\n  /**\n   * Get the remote element {@link HtmlTrackElementList}\n   *\n   * @returns {HtmlTrackElementList}\n   * @method Tech.prototype.remoteTextTrackEls\n   */\n\n\n  ALL.names.forEach(function (name) {\n    var props = ALL[name];\n\n    Tech.prototype[props.getterName] = function () {\n      this[props.privateName] = this[props.privateName] || new props.ListClass();\n      return this[props.privateName];\n    };\n  });\n  /**\n   * List of associated text tracks\n   *\n   * @type {TextTrackList}\n   * @private\n   * @property Tech#textTracks_\n   */\n\n  /**\n   * List of associated audio tracks.\n   *\n   * @type {AudioTrackList}\n   * @private\n   * @property Tech#audioTracks_\n   */\n\n  /**\n   * List of associated video tracks.\n   *\n   * @type {VideoTrackList}\n   * @private\n   * @property Tech#videoTracks_\n   */\n\n  /**\n   * Boolean indicating whether the `Tech` supports volume control.\n   *\n   * @type {boolean}\n   * @default\n   */\n\n  Tech.prototype.featuresVolumeControl = true;\n  /**\n   * Boolean indicating whether the `Tech` supports muting volume.\n   *\n   * @type {bolean}\n   * @default\n   */\n\n  Tech.prototype.featuresMuteControl = true;\n  /**\n   * Boolean indicating whether the `Tech` supports fullscreen resize control.\n   * Resizing plugins using request fullscreen reloads the plugin\n   *\n   * @type {boolean}\n   * @default\n   */\n\n  Tech.prototype.featuresFullscreenResize = false;\n  /**\n   * Boolean indicating whether the `Tech` supports changing the speed at which the video\n   * plays. Examples:\n   *   - Set player to play 2x (twice) as fast\n   *   - Set player to play 0.5x (half) as fast\n   *\n   * @type {boolean}\n   * @default\n   */\n\n  Tech.prototype.featuresPlaybackRate = false;\n  /**\n   * Boolean indicating whether the `Tech` supports the `progress` event. This is currently\n   * not triggered by video-js-swf. This will be used to determine if\n   * {@link Tech#manualProgressOn} should be called.\n   *\n   * @type {boolean}\n   * @default\n   */\n\n  Tech.prototype.featuresProgressEvents = false;\n  /**\n   * Boolean indicating whether the `Tech` supports the `sourceset` event.\n   *\n   * A tech should set this to `true` and then use {@link Tech#triggerSourceset}\n   * to trigger a {@link Tech#event:sourceset} at the earliest time after getting\n   * a new source.\n   *\n   * @type {boolean}\n   * @default\n   */\n\n  Tech.prototype.featuresSourceset = false;\n  /**\n   * Boolean indicating whether the `Tech` supports the `timeupdate` event. This is currently\n   * not triggered by video-js-swf. This will be used to determine if\n   * {@link Tech#manualTimeUpdates} should be called.\n   *\n   * @type {boolean}\n   * @default\n   */\n\n  Tech.prototype.featuresTimeupdateEvents = false;\n  /**\n   * Boolean indicating whether the `Tech` supports the native `TextTrack`s.\n   * This will help us integrate with native `TextTrack`s if the browser supports them.\n   *\n   * @type {boolean}\n   * @default\n   */\n\n  Tech.prototype.featuresNativeTextTracks = false;\n  /**\n   * Boolean indicating whether the `Tech` supports `requestVideoFrameCallback`.\n   *\n   * @type {boolean}\n   * @default\n   */\n\n  Tech.prototype.featuresVideoFrameCallback = false;\n  /**\n   * A functional mixin for techs that want to use the Source Handler pattern.\n   * Source handlers are scripts for handling specific formats.\n   * The source handler pattern is used for adaptive formats (HLS, DASH) that\n   * manually load video data and feed it into a Source Buffer (Media Source Extensions)\n   * Example: `Tech.withSourceHandlers.call(MyTech);`\n   *\n   * @param {Tech} _Tech\n   *        The tech to add source handler functions to.\n   *\n   * @mixes Tech~SourceHandlerAdditions\n   */\n\n  Tech.withSourceHandlers = function (_Tech) {\n    /**\n     * Register a source handler\n     *\n     * @param {Function} handler\n     *        The source handler class\n     *\n     * @param {number} [index]\n     *        Register it at the following index\n     */\n    _Tech.registerSourceHandler = function (handler, index) {\n      var handlers = _Tech.sourceHandlers;\n\n      if (!handlers) {\n        handlers = _Tech.sourceHandlers = [];\n      }\n\n      if (index === undefined) {\n        // add to the end of the list\n        index = handlers.length;\n      }\n\n      handlers.splice(index, 0, handler);\n    };\n    /**\n     * Check if the tech can support the given type. Also checks the\n     * Techs sourceHandlers.\n     *\n     * @param {string} type\n     *         The mimetype to check.\n     *\n     * @return {string}\n     *         'probably', 'maybe', or '' (empty string)\n     */\n\n\n    _Tech.canPlayType = function (type) {\n      var handlers = _Tech.sourceHandlers || [];\n      var can;\n\n      for (var i = 0; i < handlers.length; i++) {\n        can = handlers[i].canPlayType(type);\n\n        if (can) {\n          return can;\n        }\n      }\n\n      return '';\n    };\n    /**\n     * Returns the first source handler that supports the source.\n     *\n     * TODO: Answer question: should 'probably' be prioritized over 'maybe'\n     *\n     * @param {Tech~SourceObject} source\n     *        The source object\n     *\n     * @param {Object} options\n     *        The options passed to the tech\n     *\n     * @return {SourceHandler|null}\n     *          The first source handler that supports the source or null if\n     *          no SourceHandler supports the source\n     */\n\n\n    _Tech.selectSourceHandler = function (source, options) {\n      var handlers = _Tech.sourceHandlers || [];\n      var can;\n\n      for (var i = 0; i < handlers.length; i++) {\n        can = handlers[i].canHandleSource(source, options);\n\n        if (can) {\n          return handlers[i];\n        }\n      }\n\n      return null;\n    };\n    /**\n     * Check if the tech can support the given source.\n     *\n     * @param {Tech~SourceObject} srcObj\n     *        The source object\n     *\n     * @param {Object} options\n     *        The options passed to the tech\n     *\n     * @return {string}\n     *         'probably', 'maybe', or '' (empty string)\n     */\n\n\n    _Tech.canPlaySource = function (srcObj, options) {\n      var sh = _Tech.selectSourceHandler(srcObj, options);\n\n      if (sh) {\n        return sh.canHandleSource(srcObj, options);\n      }\n\n      return '';\n    };\n    /**\n     * When using a source handler, prefer its implementation of\n     * any function normally provided by the tech.\n     */\n\n\n    var deferrable = ['seekable', 'seeking', 'duration'];\n    /**\n     * A wrapper around {@link Tech#seekable} that will call a `SourceHandler`s seekable\n     * function if it exists, with a fallback to the Techs seekable function.\n     *\n     * @method _Tech.seekable\n     */\n\n    /**\n     * A wrapper around {@link Tech#duration} that will call a `SourceHandler`s duration\n     * function if it exists, otherwise it will fallback to the techs duration function.\n     *\n     * @method _Tech.duration\n     */\n\n    deferrable.forEach(function (fnName) {\n      var originalFn = this[fnName];\n\n      if (typeof originalFn !== 'function') {\n        return;\n      }\n\n      this[fnName] = function () {\n        if (this.sourceHandler_ && this.sourceHandler_[fnName]) {\n          return this.sourceHandler_[fnName].apply(this.sourceHandler_, arguments);\n        }\n\n        return originalFn.apply(this, arguments);\n      };\n    }, _Tech.prototype);\n    /**\n     * Create a function for setting the source using a source object\n     * and source handlers.\n     * Should never be called unless a source handler was found.\n     *\n     * @param {Tech~SourceObject} source\n     *        A source object with src and type keys\n     */\n\n    _Tech.prototype.setSource = function (source) {\n      var sh = _Tech.selectSourceHandler(source, this.options_);\n\n      if (!sh) {\n        // Fall back to a native source hander when unsupported sources are\n        // deliberately set\n        if (_Tech.nativeSourceHandler) {\n          sh = _Tech.nativeSourceHandler;\n        } else {\n          log$1.error('No source handler found for the current source.');\n        }\n      } // Dispose any existing source handler\n\n\n      this.disposeSourceHandler();\n      this.off('dispose', this.disposeSourceHandler_);\n\n      if (sh !== _Tech.nativeSourceHandler) {\n        this.currentSource_ = source;\n      }\n\n      this.sourceHandler_ = sh.handleSource(source, this, this.options_);\n      this.one('dispose', this.disposeSourceHandler_);\n    };\n    /**\n     * Clean up any existing SourceHandlers and listeners when the Tech is disposed.\n     *\n     * @listens Tech#dispose\n     */\n\n\n    _Tech.prototype.disposeSourceHandler = function () {\n      // if we have a source and get another one\n      // then we are loading something new\n      // than clear all of our current tracks\n      if (this.currentSource_) {\n        this.clearTracks(['audio', 'video']);\n        this.currentSource_ = null;\n      } // always clean up auto-text tracks\n\n\n      this.cleanupAutoTextTracks();\n\n      if (this.sourceHandler_) {\n        if (this.sourceHandler_.dispose) {\n          this.sourceHandler_.dispose();\n        }\n\n        this.sourceHandler_ = null;\n      }\n    };\n  }; // The base Tech class needs to be registered as a Component. It is the only\n  // Tech that can be registered as a Component.\n\n\n  Component$1.registerComponent('Tech', Tech);\n  Tech.registerTech('Tech', Tech);\n  /**\n   * A list of techs that should be added to techOrder on Players\n   *\n   * @private\n   */\n\n  Tech.defaultTechOrder_ = [];\n\n  /**\n   * @file middleware.js\n   * @module middleware\n   */\n  var middlewares = {};\n  var middlewareInstances = {};\n  var TERMINATOR = {};\n  /**\n   * A middleware object is a plain JavaScript object that has methods that\n   * match the {@link Tech} methods found in the lists of allowed\n   * {@link module:middleware.allowedGetters|getters},\n   * {@link module:middleware.allowedSetters|setters}, and\n   * {@link module:middleware.allowedMediators|mediators}.\n   *\n   * @typedef {Object} MiddlewareObject\n   */\n\n  /**\n   * A middleware factory function that should return a\n   * {@link module:middleware~MiddlewareObject|MiddlewareObject}.\n   *\n   * This factory will be called for each player when needed, with the player\n   * passed in as an argument.\n   *\n   * @callback MiddlewareFactory\n   * @param {Player} player\n   *        A Video.js player.\n   */\n\n  /**\n   * Define a middleware that the player should use by way of a factory function\n   * that returns a middleware object.\n   *\n   * @param  {string} type\n   *         The MIME type to match or `\"*\"` for all MIME types.\n   *\n   * @param  {MiddlewareFactory} middleware\n   *         A middleware factory function that will be executed for\n   *         matching types.\n   */\n\n  function use(type, middleware) {\n    middlewares[type] = middlewares[type] || [];\n    middlewares[type].push(middleware);\n  }\n  /**\n   * Asynchronously sets a source using middleware by recursing through any\n   * matching middlewares and calling `setSource` on each, passing along the\n   * previous returned value each time.\n   *\n   * @param  {Player} player\n   *         A {@link Player} instance.\n   *\n   * @param  {Tech~SourceObject} src\n   *         A source object.\n   *\n   * @param  {Function}\n   *         The next middleware to run.\n   */\n\n  function setSource(player, src, next) {\n    player.setTimeout(function () {\n      return setSourceHelper(src, middlewares[src.type], next, player);\n    }, 1);\n  }\n  /**\n   * When the tech is set, passes the tech to each middleware's `setTech` method.\n   *\n   * @param {Object[]} middleware\n   *        An array of middleware instances.\n   *\n   * @param {Tech} tech\n   *        A Video.js tech.\n   */\n\n  function setTech(middleware, tech) {\n    middleware.forEach(function (mw) {\n      return mw.setTech && mw.setTech(tech);\n    });\n  }\n  /**\n   * Calls a getter on the tech first, through each middleware\n   * from right to left to the player.\n   *\n   * @param  {Object[]} middleware\n   *         An array of middleware instances.\n   *\n   * @param  {Tech} tech\n   *         The current tech.\n   *\n   * @param  {string} method\n   *         A method name.\n   *\n   * @return {Mixed}\n   *         The final value from the tech after middleware has intercepted it.\n   */\n\n  function get(middleware, tech, method) {\n    return middleware.reduceRight(middlewareIterator(method), tech[method]());\n  }\n  /**\n   * Takes the argument given to the player and calls the setter method on each\n   * middleware from left to right to the tech.\n   *\n   * @param  {Object[]} middleware\n   *         An array of middleware instances.\n   *\n   * @param  {Tech} tech\n   *         The current tech.\n   *\n   * @param  {string} method\n   *         A method name.\n   *\n   * @param  {Mixed} arg\n   *         The value to set on the tech.\n   *\n   * @return {Mixed}\n   *         The return value of the `method` of the `tech`.\n   */\n\n  function set(middleware, tech, method, arg) {\n    return tech[method](middleware.reduce(middlewareIterator(method), arg));\n  }\n  /**\n   * Takes the argument given to the player and calls the `call` version of the\n   * method on each middleware from left to right.\n   *\n   * Then, call the passed in method on the tech and return the result unchanged\n   * back to the player, through middleware, this time from right to left.\n   *\n   * @param  {Object[]} middleware\n   *         An array of middleware instances.\n   *\n   * @param  {Tech} tech\n   *         The current tech.\n   *\n   * @param  {string} method\n   *         A method name.\n   *\n   * @param  {Mixed} arg\n   *         The value to set on the tech.\n   *\n   * @return {Mixed}\n   *         The return value of the `method` of the `tech`, regardless of the\n   *         return values of middlewares.\n   */\n\n  function mediate(middleware, tech, method, arg) {\n    if (arg === void 0) {\n      arg = null;\n    }\n\n    var callMethod = 'call' + toTitleCase$1(method);\n    var middlewareValue = middleware.reduce(middlewareIterator(callMethod), arg);\n    var terminated = middlewareValue === TERMINATOR; // deprecated. The `null` return value should instead return TERMINATOR to\n    // prevent confusion if a techs method actually returns null.\n\n    var returnValue = terminated ? null : tech[method](middlewareValue);\n    executeRight(middleware, method, returnValue, terminated);\n    return returnValue;\n  }\n  /**\n   * Enumeration of allowed getters where the keys are method names.\n   *\n   * @type {Object}\n   */\n\n  var allowedGetters = {\n    buffered: 1,\n    currentTime: 1,\n    duration: 1,\n    muted: 1,\n    played: 1,\n    paused: 1,\n    seekable: 1,\n    volume: 1,\n    ended: 1\n  };\n  /**\n   * Enumeration of allowed setters where the keys are method names.\n   *\n   * @type {Object}\n   */\n\n  var allowedSetters = {\n    setCurrentTime: 1,\n    setMuted: 1,\n    setVolume: 1\n  };\n  /**\n   * Enumeration of allowed mediators where the keys are method names.\n   *\n   * @type {Object}\n   */\n\n  var allowedMediators = {\n    play: 1,\n    pause: 1\n  };\n\n  function middlewareIterator(method) {\n    return function (value, mw) {\n      // if the previous middleware terminated, pass along the termination\n      if (value === TERMINATOR) {\n        return TERMINATOR;\n      }\n\n      if (mw[method]) {\n        return mw[method](value);\n      }\n\n      return value;\n    };\n  }\n\n  function executeRight(mws, method, value, terminated) {\n    for (var i = mws.length - 1; i >= 0; i--) {\n      var mw = mws[i];\n\n      if (mw[method]) {\n        mw[method](terminated, value);\n      }\n    }\n  }\n  /**\n   * Clear the middleware cache for a player.\n   *\n   * @param  {Player} player\n   *         A {@link Player} instance.\n   */\n\n\n  function clearCacheForPlayer(player) {\n    middlewareInstances[player.id()] = null;\n  }\n  /**\n   * {\n   *  [playerId]: [[mwFactory, mwInstance], ...]\n   * }\n   *\n   * @private\n   */\n\n  function getOrCreateFactory(player, mwFactory) {\n    var mws = middlewareInstances[player.id()];\n    var mw = null;\n\n    if (mws === undefined || mws === null) {\n      mw = mwFactory(player);\n      middlewareInstances[player.id()] = [[mwFactory, mw]];\n      return mw;\n    }\n\n    for (var i = 0; i < mws.length; i++) {\n      var _mws$i = mws[i],\n          mwf = _mws$i[0],\n          mwi = _mws$i[1];\n\n      if (mwf !== mwFactory) {\n        continue;\n      }\n\n      mw = mwi;\n    }\n\n    if (mw === null) {\n      mw = mwFactory(player);\n      mws.push([mwFactory, mw]);\n    }\n\n    return mw;\n  }\n\n  function setSourceHelper(src, middleware, next, player, acc, lastRun) {\n    if (src === void 0) {\n      src = {};\n    }\n\n    if (middleware === void 0) {\n      middleware = [];\n    }\n\n    if (acc === void 0) {\n      acc = [];\n    }\n\n    if (lastRun === void 0) {\n      lastRun = false;\n    }\n\n    var _middleware = middleware,\n        mwFactory = _middleware[0],\n        mwrest = _middleware.slice(1); // if mwFactory is a string, then we're at a fork in the road\n\n\n    if (typeof mwFactory === 'string') {\n      setSourceHelper(src, middlewares[mwFactory], next, player, acc, lastRun); // if we have an mwFactory, call it with the player to get the mw,\n      // then call the mw's setSource method\n    } else if (mwFactory) {\n      var mw = getOrCreateFactory(player, mwFactory); // if setSource isn't present, implicitly select this middleware\n\n      if (!mw.setSource) {\n        acc.push(mw);\n        return setSourceHelper(src, mwrest, next, player, acc, lastRun);\n      }\n\n      mw.setSource(assign({}, src), function (err, _src) {\n        // something happened, try the next middleware on the current level\n        // make sure to use the old src\n        if (err) {\n          return setSourceHelper(src, mwrest, next, player, acc, lastRun);\n        } // we've succeeded, now we need to go deeper\n\n\n        acc.push(mw); // if it's the same type, continue down the current chain\n        // otherwise, we want to go down the new chain\n\n        setSourceHelper(_src, src.type === _src.type ? mwrest : middlewares[_src.type], next, player, acc, lastRun);\n      });\n    } else if (mwrest.length) {\n      setSourceHelper(src, mwrest, next, player, acc, lastRun);\n    } else if (lastRun) {\n      next(src, acc);\n    } else {\n      setSourceHelper(src, middlewares['*'], next, player, acc, true);\n    }\n  }\n\n  /**\n   * Mimetypes\n   *\n   * @see https://www.iana.org/assignments/media-types/media-types.xhtml\n   * @typedef Mimetypes~Kind\n   * @enum\n   */\n\n  var MimetypesKind = {\n    opus: 'video/ogg',\n    ogv: 'video/ogg',\n    mp4: 'video/mp4',\n    mov: 'video/mp4',\n    m4v: 'video/mp4',\n    mkv: 'video/x-matroska',\n    m4a: 'audio/mp4',\n    mp3: 'audio/mpeg',\n    aac: 'audio/aac',\n    caf: 'audio/x-caf',\n    flac: 'audio/flac',\n    oga: 'audio/ogg',\n    wav: 'audio/wav',\n    m3u8: 'application/x-mpegURL',\n    mpd: 'application/dash+xml',\n    jpg: 'image/jpeg',\n    jpeg: 'image/jpeg',\n    gif: 'image/gif',\n    png: 'image/png',\n    svg: 'image/svg+xml',\n    webp: 'image/webp'\n  };\n  /**\n   * Get the mimetype of a given src url if possible\n   *\n   * @param {string} src\n   *        The url to the src\n   *\n   * @return {string}\n   *         return the mimetype if it was known or empty string otherwise\n   */\n\n  var getMimetype = function getMimetype(src) {\n    if (src === void 0) {\n      src = '';\n    }\n\n    var ext = getFileExtension(src);\n    var mimetype = MimetypesKind[ext.toLowerCase()];\n    return mimetype || '';\n  };\n  /**\n   * Find the mime type of a given source string if possible. Uses the player\n   * source cache.\n   *\n   * @param {Player} player\n   *        The player object\n   *\n   * @param {string} src\n   *        The source string\n   *\n   * @return {string}\n   *         The type that was found\n   */\n\n  var findMimetype = function findMimetype(player, src) {\n    if (!src) {\n      return '';\n    } // 1. check for the type in the `source` cache\n\n\n    if (player.cache_.source.src === src && player.cache_.source.type) {\n      return player.cache_.source.type;\n    } // 2. see if we have this source in our `currentSources` cache\n\n\n    var matchingSources = player.cache_.sources.filter(function (s) {\n      return s.src === src;\n    });\n\n    if (matchingSources.length) {\n      return matchingSources[0].type;\n    } // 3. look for the src url in source elements and use the type there\n\n\n    var sources = player.$$('source');\n\n    for (var i = 0; i < sources.length; i++) {\n      var s = sources[i];\n\n      if (s.type && s.src && s.src === src) {\n        return s.type;\n      }\n    } // 4. finally fallback to our list of mime types based on src url extension\n\n\n    return getMimetype(src);\n  };\n\n  /**\n   * @module filter-source\n   */\n  /**\n   * Filter out single bad source objects or multiple source objects in an\n   * array. Also flattens nested source object arrays into a 1 dimensional\n   * array of source objects.\n   *\n   * @param {Tech~SourceObject|Tech~SourceObject[]} src\n   *        The src object to filter\n   *\n   * @return {Tech~SourceObject[]}\n   *         An array of sourceobjects containing only valid sources\n   *\n   * @private\n   */\n\n  var filterSource = function filterSource(src) {\n    // traverse array\n    if (Array.isArray(src)) {\n      var newsrc = [];\n      src.forEach(function (srcobj) {\n        srcobj = filterSource(srcobj);\n\n        if (Array.isArray(srcobj)) {\n          newsrc = newsrc.concat(srcobj);\n        } else if (isObject$1(srcobj)) {\n          newsrc.push(srcobj);\n        }\n      });\n      src = newsrc;\n    } else if (typeof src === 'string' && src.trim()) {\n      // convert string into object\n      src = [fixSource({\n        src: src\n      })];\n    } else if (isObject$1(src) && typeof src.src === 'string' && src.src && src.src.trim()) {\n      // src is already valid\n      src = [fixSource(src)];\n    } else {\n      // invalid source, turn it into an empty array\n      src = [];\n    }\n\n    return src;\n  };\n  /**\n   * Checks src mimetype, adding it when possible\n   *\n   * @param {Tech~SourceObject} src\n   *        The src object to check\n   * @return {Tech~SourceObject}\n   *        src Object with known type\n   */\n\n\n  function fixSource(src) {\n    if (!src.type) {\n      var mimetype = getMimetype(src.src);\n\n      if (mimetype) {\n        src.type = mimetype;\n      }\n    }\n\n    return src;\n  }\n\n  /**\n   * The `MediaLoader` is the `Component` that decides which playback technology to load\n   * when a player is initialized.\n   *\n   * @extends Component\n   */\n\n  var MediaLoader = /*#__PURE__*/function (_Component) {\n    inheritsLoose(MediaLoader, _Component);\n\n    /**\n     * Create an instance of this class.\n     *\n     * @param {Player} player\n     *        The `Player` that this class should attach to.\n     *\n     * @param {Object} [options]\n     *        The key/value store of player options.\n     *\n     * @param {Component~ReadyCallback} [ready]\n     *        The function that is run when this component is ready.\n     */\n    function MediaLoader(player, options, ready) {\n      var _this;\n\n      // MediaLoader has no element\n      var options_ = mergeOptions$3({\n        createEl: false\n      }, options);\n      _this = _Component.call(this, player, options_, ready) || this; // If there are no sources when the player is initialized,\n      // load the first supported playback technology.\n\n      if (!options.playerOptions.sources || options.playerOptions.sources.length === 0) {\n        for (var i = 0, j = options.playerOptions.techOrder; i < j.length; i++) {\n          var techName = toTitleCase$1(j[i]);\n          var tech = Tech.getTech(techName); // Support old behavior of techs being registered as components.\n          // Remove once that deprecated behavior is removed.\n\n          if (!techName) {\n            tech = Component$1.getComponent(techName);\n          } // Check if the browser supports this technology\n\n\n          if (tech && tech.isSupported()) {\n            player.loadTech_(techName);\n            break;\n          }\n        }\n      } else {\n        // Loop through playback technologies (e.g. HTML5) and check for support.\n        // Then load the best source.\n        // A few assumptions here:\n        //   All playback technologies respect preload false.\n        player.src(options.playerOptions.sources);\n      }\n\n      return _this;\n    }\n\n    return MediaLoader;\n  }(Component$1);\n\n  Component$1.registerComponent('MediaLoader', MediaLoader);\n\n  /**\n   * Component which is clickable or keyboard actionable, but is not a\n   * native HTML button.\n   *\n   * @extends Component\n   */\n\n  var ClickableComponent = /*#__PURE__*/function (_Component) {\n    inheritsLoose(ClickableComponent, _Component);\n\n    /**\n     * Creates an instance of this class.\n     *\n     * @param  {Player} player\n     *         The `Player` that this class should be attached to.\n     *\n     * @param  {Object} [options]\n     *         The key/value store of component options.\n     *\n     * @param  {function} [options.clickHandler]\n     *         The function to call when the button is clicked / activated\n     *\n     * @param  {string} [options.controlText]\n     *         The text to set on the button\n     *\n     * @param  {string} [options.className]\n     *         A class or space separated list of classes to add the component\n     *\n     */\n    function ClickableComponent(player, options) {\n      var _this;\n\n      _this = _Component.call(this, player, options) || this;\n\n      if (_this.options_.controlText) {\n        _this.controlText(_this.options_.controlText);\n      }\n\n      _this.handleMouseOver_ = function (e) {\n        return _this.handleMouseOver(e);\n      };\n\n      _this.handleMouseOut_ = function (e) {\n        return _this.handleMouseOut(e);\n      };\n\n      _this.handleClick_ = function (e) {\n        return _this.handleClick(e);\n      };\n\n      _this.handleKeyDown_ = function (e) {\n        return _this.handleKeyDown(e);\n      };\n\n      _this.emitTapEvents();\n\n      _this.enable();\n\n      return _this;\n    }\n    /**\n     * Create the `ClickableComponent`s DOM element.\n     *\n     * @param {string} [tag=div]\n     *        The element's node type.\n     *\n     * @param {Object} [props={}]\n     *        An object of properties that should be set on the element.\n     *\n     * @param {Object} [attributes={}]\n     *        An object of attributes that should be set on the element.\n     *\n     * @return {Element}\n     *         The element that gets created.\n     */\n\n\n    var _proto = ClickableComponent.prototype;\n\n    _proto.createEl = function createEl$1(tag, props, attributes) {\n      if (tag === void 0) {\n        tag = 'div';\n      }\n\n      if (props === void 0) {\n        props = {};\n      }\n\n      if (attributes === void 0) {\n        attributes = {};\n      }\n\n      props = assign({\n        className: this.buildCSSClass(),\n        tabIndex: 0\n      }, props);\n\n      if (tag === 'button') {\n        log$1.error(\"Creating a ClickableComponent with an HTML element of \" + tag + \" is not supported; use a Button instead.\");\n      } // Add ARIA attributes for clickable element which is not a native HTML button\n\n\n      attributes = assign({\n        role: 'button'\n      }, attributes);\n      this.tabIndex_ = props.tabIndex;\n      var el = createEl(tag, props, attributes);\n      el.appendChild(createEl('span', {\n        className: 'vjs-icon-placeholder'\n      }, {\n        'aria-hidden': true\n      }));\n      this.createControlTextEl(el);\n      return el;\n    };\n\n    _proto.dispose = function dispose() {\n      // remove controlTextEl_ on dispose\n      this.controlTextEl_ = null;\n\n      _Component.prototype.dispose.call(this);\n    }\n    /**\n     * Create a control text element on this `ClickableComponent`\n     *\n     * @param {Element} [el]\n     *        Parent element for the control text.\n     *\n     * @return {Element}\n     *         The control text element that gets created.\n     */\n    ;\n\n    _proto.createControlTextEl = function createControlTextEl(el) {\n      this.controlTextEl_ = createEl('span', {\n        className: 'vjs-control-text'\n      }, {\n        // let the screen reader user know that the text of the element may change\n        'aria-live': 'polite'\n      });\n\n      if (el) {\n        el.appendChild(this.controlTextEl_);\n      }\n\n      this.controlText(this.controlText_, el);\n      return this.controlTextEl_;\n    }\n    /**\n     * Get or set the localize text to use for the controls on the `ClickableComponent`.\n     *\n     * @param {string} [text]\n     *        Control text for element.\n     *\n     * @param {Element} [el=this.el()]\n     *        Element to set the title on.\n     *\n     * @return {string}\n     *         - The control text when getting\n     */\n    ;\n\n    _proto.controlText = function controlText(text, el) {\n      if (el === void 0) {\n        el = this.el();\n      }\n\n      if (text === undefined) {\n        return this.controlText_ || 'Need Text';\n      }\n\n      var localizedText = this.localize(text);\n      this.controlText_ = text;\n      textContent(this.controlTextEl_, localizedText);\n\n      if (!this.nonIconControl && !this.player_.options_.noUITitleAttributes) {\n        // Set title attribute if only an icon is shown\n        el.setAttribute('title', localizedText);\n      }\n    }\n    /**\n     * Builds the default DOM `className`.\n     *\n     * @return {string}\n     *         The DOM `className` for this object.\n     */\n    ;\n\n    _proto.buildCSSClass = function buildCSSClass() {\n      return \"vjs-control vjs-button \" + _Component.prototype.buildCSSClass.call(this);\n    }\n    /**\n     * Enable this `ClickableComponent`\n     */\n    ;\n\n    _proto.enable = function enable() {\n      if (!this.enabled_) {\n        this.enabled_ = true;\n        this.removeClass('vjs-disabled');\n        this.el_.setAttribute('aria-disabled', 'false');\n\n        if (typeof this.tabIndex_ !== 'undefined') {\n          this.el_.setAttribute('tabIndex', this.tabIndex_);\n        }\n\n        this.on(['tap', 'click'], this.handleClick_);\n        this.on('keydown', this.handleKeyDown_);\n      }\n    }\n    /**\n     * Disable this `ClickableComponent`\n     */\n    ;\n\n    _proto.disable = function disable() {\n      this.enabled_ = false;\n      this.addClass('vjs-disabled');\n      this.el_.setAttribute('aria-disabled', 'true');\n\n      if (typeof this.tabIndex_ !== 'undefined') {\n        this.el_.removeAttribute('tabIndex');\n      }\n\n      this.off('mouseover', this.handleMouseOver_);\n      this.off('mouseout', this.handleMouseOut_);\n      this.off(['tap', 'click'], this.handleClick_);\n      this.off('keydown', this.handleKeyDown_);\n    }\n    /**\n     * Handles language change in ClickableComponent for the player in components\n     *\n     *\n     */\n    ;\n\n    _proto.handleLanguagechange = function handleLanguagechange() {\n      this.controlText(this.controlText_);\n    }\n    /**\n     * Event handler that is called when a `ClickableComponent` receives a\n     * `click` or `tap` event.\n     *\n     * @param {EventTarget~Event} event\n     *        The `tap` or `click` event that caused this function to be called.\n     *\n     * @listens tap\n     * @listens click\n     * @abstract\n     */\n    ;\n\n    _proto.handleClick = function handleClick(event) {\n      if (this.options_.clickHandler) {\n        this.options_.clickHandler.call(this, arguments);\n      }\n    }\n    /**\n     * Event handler that is called when a `ClickableComponent` receives a\n     * `keydown` event.\n     *\n     * By default, if the key is Space or Enter, it will trigger a `click` event.\n     *\n     * @param {EventTarget~Event} event\n     *        The `keydown` event that caused this function to be called.\n     *\n     * @listens keydown\n     */\n    ;\n\n    _proto.handleKeyDown = function handleKeyDown(event) {\n      // Support Space or Enter key operation to fire a click event. Also,\n      // prevent the event from propagating through the DOM and triggering\n      // Player hotkeys.\n      if (keycode.isEventKey(event, 'Space') || keycode.isEventKey(event, 'Enter')) {\n        event.preventDefault();\n        event.stopPropagation();\n        this.trigger('click');\n      } else {\n        // Pass keypress handling up for unsupported keys\n        _Component.prototype.handleKeyDown.call(this, event);\n      }\n    };\n\n    return ClickableComponent;\n  }(Component$1);\n\n  Component$1.registerComponent('ClickableComponent', ClickableComponent);\n\n  /**\n   * A `ClickableComponent` that handles showing the poster image for the player.\n   *\n   * @extends ClickableComponent\n   */\n\n  var PosterImage = /*#__PURE__*/function (_ClickableComponent) {\n    inheritsLoose(PosterImage, _ClickableComponent);\n\n    /**\n     * Create an instance of this class.\n     *\n     * @param {Player} player\n     *        The `Player` that this class should attach to.\n     *\n     * @param {Object} [options]\n     *        The key/value store of player options.\n     */\n    function PosterImage(player, options) {\n      var _this;\n\n      _this = _ClickableComponent.call(this, player, options) || this;\n\n      _this.update();\n\n      _this.update_ = function (e) {\n        return _this.update(e);\n      };\n\n      player.on('posterchange', _this.update_);\n      return _this;\n    }\n    /**\n     * Clean up and dispose of the `PosterImage`.\n     */\n\n\n    var _proto = PosterImage.prototype;\n\n    _proto.dispose = function dispose() {\n      this.player().off('posterchange', this.update_);\n\n      _ClickableComponent.prototype.dispose.call(this);\n    }\n    /**\n     * Create the `PosterImage`s DOM element.\n     *\n     * @return {Element}\n     *         The element that gets created.\n     */\n    ;\n\n    _proto.createEl = function createEl$1() {\n      var el = createEl('div', {\n        className: 'vjs-poster',\n        // Don't want poster to be tabbable.\n        tabIndex: -1\n      });\n      return el;\n    }\n    /**\n     * An {@link EventTarget~EventListener} for {@link Player#posterchange} events.\n     *\n     * @listens Player#posterchange\n     *\n     * @param {EventTarget~Event} [event]\n     *        The `Player#posterchange` event that triggered this function.\n     */\n    ;\n\n    _proto.update = function update(event) {\n      var url = this.player().poster();\n      this.setSrc(url); // If there's no poster source we should display:none on this component\n      // so it's not still clickable or right-clickable\n\n      if (url) {\n        this.show();\n      } else {\n        this.hide();\n      }\n    }\n    /**\n     * Set the source of the `PosterImage` depending on the display method.\n     *\n     * @param {string} url\n     *        The URL to the source for the `PosterImage`.\n     */\n    ;\n\n    _proto.setSrc = function setSrc(url) {\n      var backgroundImage = ''; // Any falsy value should stay as an empty string, otherwise\n      // this will throw an extra error\n\n      if (url) {\n        backgroundImage = \"url(\\\"\" + url + \"\\\")\";\n      }\n\n      this.el_.style.backgroundImage = backgroundImage;\n    }\n    /**\n     * An {@link EventTarget~EventListener} for clicks on the `PosterImage`. See\n     * {@link ClickableComponent#handleClick} for instances where this will be triggered.\n     *\n     * @listens tap\n     * @listens click\n     * @listens keydown\n     *\n     * @param {EventTarget~Event} event\n     +        The `click`, `tap` or `keydown` event that caused this function to be called.\n     */\n    ;\n\n    _proto.handleClick = function handleClick(event) {\n      // We don't want a click to trigger playback when controls are disabled\n      if (!this.player_.controls()) {\n        return;\n      }\n\n      var sourceIsEncrypted = this.player_.usingPlugin('eme') && this.player_.eme.sessions && this.player_.eme.sessions.length > 0;\n\n      if (this.player_.tech(true) && // We've observed a bug in IE and Edge when playing back DRM content where\n      // calling .focus() on the video element causes the video to go black,\n      // so we avoid it in that specific case\n      !((IE_VERSION || IS_EDGE) && sourceIsEncrypted)) {\n        this.player_.tech(true).focus();\n      }\n\n      if (this.player_.paused()) {\n        silencePromise(this.player_.play());\n      } else {\n        this.player_.pause();\n      }\n    };\n\n    return PosterImage;\n  }(ClickableComponent);\n\n  Component$1.registerComponent('PosterImage', PosterImage);\n\n  var darkGray = '#222';\n  var lightGray = '#ccc';\n  var fontMap = {\n    monospace: 'monospace',\n    sansSerif: 'sans-serif',\n    serif: 'serif',\n    monospaceSansSerif: '\"Andale Mono\", \"Lucida Console\", monospace',\n    monospaceSerif: '\"Courier New\", monospace',\n    proportionalSansSerif: 'sans-serif',\n    proportionalSerif: 'serif',\n    casual: '\"Comic Sans MS\", Impact, fantasy',\n    script: '\"Monotype Corsiva\", cursive',\n    smallcaps: '\"Andale Mono\", \"Lucida Console\", monospace, sans-serif'\n  };\n  /**\n   * Construct an rgba color from a given hex color code.\n   *\n   * @param {number} color\n   *        Hex number for color, like #f0e or #f604e2.\n   *\n   * @param {number} opacity\n   *        Value for opacity, 0.0 - 1.0.\n   *\n   * @return {string}\n   *         The rgba color that was created, like 'rgba(255, 0, 0, 0.3)'.\n   */\n\n  function constructColor(color, opacity) {\n    var hex;\n\n    if (color.length === 4) {\n      // color looks like \"#f0e\"\n      hex = color[1] + color[1] + color[2] + color[2] + color[3] + color[3];\n    } else if (color.length === 7) {\n      // color looks like \"#f604e2\"\n      hex = color.slice(1);\n    } else {\n      throw new Error('Invalid color code provided, ' + color + '; must be formatted as e.g. #f0e or #f604e2.');\n    }\n\n    return 'rgba(' + parseInt(hex.slice(0, 2), 16) + ',' + parseInt(hex.slice(2, 4), 16) + ',' + parseInt(hex.slice(4, 6), 16) + ',' + opacity + ')';\n  }\n  /**\n   * Try to update the style of a DOM element. Some style changes will throw an error,\n   * particularly in IE8. Those should be noops.\n   *\n   * @param {Element} el\n   *        The DOM element to be styled.\n   *\n   * @param {string} style\n   *        The CSS property on the element that should be styled.\n   *\n   * @param {string} rule\n   *        The style rule that should be applied to the property.\n   *\n   * @private\n   */\n\n  function tryUpdateStyle(el, style, rule) {\n    try {\n      el.style[style] = rule;\n    } catch (e) {\n      // Satisfies linter.\n      return;\n    }\n  }\n  /**\n   * The component for displaying text track cues.\n   *\n   * @extends Component\n   */\n\n\n  var TextTrackDisplay = /*#__PURE__*/function (_Component) {\n    inheritsLoose(TextTrackDisplay, _Component);\n\n    /**\n     * Creates an instance of this class.\n     *\n     * @param {Player} player\n     *        The `Player` that this class should be attached to.\n     *\n     * @param {Object} [options]\n     *        The key/value store of player options.\n     *\n     * @param {Component~ReadyCallback} [ready]\n     *        The function to call when `TextTrackDisplay` is ready.\n     */\n    function TextTrackDisplay(player, options, ready) {\n      var _this;\n\n      _this = _Component.call(this, player, options, ready) || this;\n\n      var updateDisplayHandler = function updateDisplayHandler(e) {\n        return _this.updateDisplay(e);\n      };\n\n      player.on('loadstart', function (e) {\n        return _this.toggleDisplay(e);\n      });\n      player.on('texttrackchange', updateDisplayHandler);\n      player.on('loadedmetadata', function (e) {\n        return _this.preselectTrack(e);\n      }); // This used to be called during player init, but was causing an error\n      // if a track should show by default and the display hadn't loaded yet.\n      // Should probably be moved to an external track loader when we support\n      // tracks that don't need a display.\n\n      player.ready(bind(assertThisInitialized(_this), function () {\n        if (player.tech_ && player.tech_.featuresNativeTextTracks) {\n          this.hide();\n          return;\n        }\n\n        player.on('fullscreenchange', updateDisplayHandler);\n        player.on('playerresize', updateDisplayHandler);\n        window.addEventListener('orientationchange', updateDisplayHandler);\n        player.on('dispose', function () {\n          return window.removeEventListener('orientationchange', updateDisplayHandler);\n        });\n        var tracks = this.options_.playerOptions.tracks || [];\n\n        for (var i = 0; i < tracks.length; i++) {\n          this.player_.addRemoteTextTrack(tracks[i], true);\n        }\n\n        this.preselectTrack();\n      }));\n      return _this;\n    }\n    /**\n    * Preselect a track following this precedence:\n    * - matches the previously selected {@link TextTrack}'s language and kind\n    * - matches the previously selected {@link TextTrack}'s language only\n    * - is the first default captions track\n    * - is the first default descriptions track\n    *\n    * @listens Player#loadstart\n    */\n\n\n    var _proto = TextTrackDisplay.prototype;\n\n    _proto.preselectTrack = function preselectTrack() {\n      var modes = {\n        captions: 1,\n        subtitles: 1\n      };\n      var trackList = this.player_.textTracks();\n      var userPref = this.player_.cache_.selectedLanguage;\n      var firstDesc;\n      var firstCaptions;\n      var preferredTrack;\n\n      for (var i = 0; i < trackList.length; i++) {\n        var track = trackList[i];\n\n        if (userPref && userPref.enabled && userPref.language && userPref.language === track.language && track.kind in modes) {\n          // Always choose the track that matches both language and kind\n          if (track.kind === userPref.kind) {\n            preferredTrack = track; // or choose the first track that matches language\n          } else if (!preferredTrack) {\n            preferredTrack = track;\n          } // clear everything if offTextTrackMenuItem was clicked\n\n        } else if (userPref && !userPref.enabled) {\n          preferredTrack = null;\n          firstDesc = null;\n          firstCaptions = null;\n        } else if (track[\"default\"]) {\n          if (track.kind === 'descriptions' && !firstDesc) {\n            firstDesc = track;\n          } else if (track.kind in modes && !firstCaptions) {\n            firstCaptions = track;\n          }\n        }\n      } // The preferredTrack matches the user preference and takes\n      // precedence over all the other tracks.\n      // So, display the preferredTrack before the first default track\n      // and the subtitles/captions track before the descriptions track\n\n\n      if (preferredTrack) {\n        preferredTrack.mode = 'showing';\n      } else if (firstCaptions) {\n        firstCaptions.mode = 'showing';\n      } else if (firstDesc) {\n        firstDesc.mode = 'showing';\n      }\n    }\n    /**\n     * Turn display of {@link TextTrack}'s from the current state into the other state.\n     * There are only two states:\n     * - 'shown'\n     * - 'hidden'\n     *\n     * @listens Player#loadstart\n     */\n    ;\n\n    _proto.toggleDisplay = function toggleDisplay() {\n      if (this.player_.tech_ && this.player_.tech_.featuresNativeTextTracks) {\n        this.hide();\n      } else {\n        this.show();\n      }\n    }\n    /**\n     * Create the {@link Component}'s DOM element.\n     *\n     * @return {Element}\n     *         The element that was created.\n     */\n    ;\n\n    _proto.createEl = function createEl() {\n      return _Component.prototype.createEl.call(this, 'div', {\n        className: 'vjs-text-track-display'\n      }, {\n        'translate': 'yes',\n        'aria-live': 'off',\n        'aria-atomic': 'true'\n      });\n    }\n    /**\n     * Clear all displayed {@link TextTrack}s.\n     */\n    ;\n\n    _proto.clearDisplay = function clearDisplay() {\n      if (typeof window.WebVTT === 'function') {\n        window.WebVTT.processCues(window, [], this.el_);\n      }\n    }\n    /**\n     * Update the displayed TextTrack when a either a {@link Player#texttrackchange} or\n     * a {@link Player#fullscreenchange} is fired.\n     *\n     * @listens Player#texttrackchange\n     * @listens Player#fullscreenchange\n     */\n    ;\n\n    _proto.updateDisplay = function updateDisplay() {\n      var tracks = this.player_.textTracks();\n      var allowMultipleShowingTracks = this.options_.allowMultipleShowingTracks;\n      this.clearDisplay();\n\n      if (allowMultipleShowingTracks) {\n        var showingTracks = [];\n\n        for (var _i = 0; _i < tracks.length; ++_i) {\n          var track = tracks[_i];\n\n          if (track.mode !== 'showing') {\n            continue;\n          }\n\n          showingTracks.push(track);\n        }\n\n        this.updateForTrack(showingTracks);\n        return;\n      } //  Track display prioritization model: if multiple tracks are 'showing',\n      //  display the first 'subtitles' or 'captions' track which is 'showing',\n      //  otherwise display the first 'descriptions' track which is 'showing'\n\n\n      var descriptionsTrack = null;\n      var captionsSubtitlesTrack = null;\n      var i = tracks.length;\n\n      while (i--) {\n        var _track = tracks[i];\n\n        if (_track.mode === 'showing') {\n          if (_track.kind === 'descriptions') {\n            descriptionsTrack = _track;\n          } else {\n            captionsSubtitlesTrack = _track;\n          }\n        }\n      }\n\n      if (captionsSubtitlesTrack) {\n        if (this.getAttribute('aria-live') !== 'off') {\n          this.setAttribute('aria-live', 'off');\n        }\n\n        this.updateForTrack(captionsSubtitlesTrack);\n      } else if (descriptionsTrack) {\n        if (this.getAttribute('aria-live') !== 'assertive') {\n          this.setAttribute('aria-live', 'assertive');\n        }\n\n        this.updateForTrack(descriptionsTrack);\n      }\n    }\n    /**\n     * Style {@Link TextTrack} activeCues according to {@Link TextTrackSettings}.\n     *\n     * @param {TextTrack} track\n     *        Text track object containing active cues to style.\n     */\n    ;\n\n    _proto.updateDisplayState = function updateDisplayState(track) {\n      var overrides = this.player_.textTrackSettings.getValues();\n      var cues = track.activeCues;\n      var i = cues.length;\n\n      while (i--) {\n        var cue = cues[i];\n\n        if (!cue) {\n          continue;\n        }\n\n        var cueDiv = cue.displayState;\n\n        if (overrides.color) {\n          cueDiv.firstChild.style.color = overrides.color;\n        }\n\n        if (overrides.textOpacity) {\n          tryUpdateStyle(cueDiv.firstChild, 'color', constructColor(overrides.color || '#fff', overrides.textOpacity));\n        }\n\n        if (overrides.backgroundColor) {\n          cueDiv.firstChild.style.backgroundColor = overrides.backgroundColor;\n        }\n\n        if (overrides.backgroundOpacity) {\n          tryUpdateStyle(cueDiv.firstChild, 'backgroundColor', constructColor(overrides.backgroundColor || '#000', overrides.backgroundOpacity));\n        }\n\n        if (overrides.windowColor) {\n          if (overrides.windowOpacity) {\n            tryUpdateStyle(cueDiv, 'backgroundColor', constructColor(overrides.windowColor, overrides.windowOpacity));\n          } else {\n            cueDiv.style.backgroundColor = overrides.windowColor;\n          }\n        }\n\n        if (overrides.edgeStyle) {\n          if (overrides.edgeStyle === 'dropshadow') {\n            cueDiv.firstChild.style.textShadow = \"2px 2px 3px \" + darkGray + \", 2px 2px 4px \" + darkGray + \", 2px 2px 5px \" + darkGray;\n          } else if (overrides.edgeStyle === 'raised') {\n            cueDiv.firstChild.style.textShadow = \"1px 1px \" + darkGray + \", 2px 2px \" + darkGray + \", 3px 3px \" + darkGray;\n          } else if (overrides.edgeStyle === 'depressed') {\n            cueDiv.firstChild.style.textShadow = \"1px 1px \" + lightGray + \", 0 1px \" + lightGray + \", -1px -1px \" + darkGray + \", 0 -1px \" + darkGray;\n          } else if (overrides.edgeStyle === 'uniform') {\n            cueDiv.firstChild.style.textShadow = \"0 0 4px \" + darkGray + \", 0 0 4px \" + darkGray + \", 0 0 4px \" + darkGray + \", 0 0 4px \" + darkGray;\n          }\n        }\n\n        if (overrides.fontPercent && overrides.fontPercent !== 1) {\n          var fontSize = window.parseFloat(cueDiv.style.fontSize);\n          cueDiv.style.fontSize = fontSize * overrides.fontPercent + 'px';\n          cueDiv.style.height = 'auto';\n          cueDiv.style.top = 'auto';\n        }\n\n        if (overrides.fontFamily && overrides.fontFamily !== 'default') {\n          if (overrides.fontFamily === 'small-caps') {\n            cueDiv.firstChild.style.fontVariant = 'small-caps';\n          } else {\n            cueDiv.firstChild.style.fontFamily = fontMap[overrides.fontFamily];\n          }\n        }\n      }\n    }\n    /**\n     * Add an {@link TextTrack} to to the {@link Tech}s {@link TextTrackList}.\n     *\n     * @param {TextTrack|TextTrack[]} tracks\n     *        Text track object or text track array to be added to the list.\n     */\n    ;\n\n    _proto.updateForTrack = function updateForTrack(tracks) {\n      if (!Array.isArray(tracks)) {\n        tracks = [tracks];\n      }\n\n      if (typeof window.WebVTT !== 'function' || tracks.every(function (track) {\n        return !track.activeCues;\n      })) {\n        return;\n      }\n\n      var cues = []; // push all active track cues\n\n      for (var i = 0; i < tracks.length; ++i) {\n        var track = tracks[i];\n\n        for (var j = 0; j < track.activeCues.length; ++j) {\n          cues.push(track.activeCues[j]);\n        }\n      } // removes all cues before it processes new ones\n\n\n      window.WebVTT.processCues(window, cues, this.el_); // add unique class to each language text track & add settings styling if necessary\n\n      for (var _i2 = 0; _i2 < tracks.length; ++_i2) {\n        var _track2 = tracks[_i2];\n\n        for (var _j = 0; _j < _track2.activeCues.length; ++_j) {\n          var cueEl = _track2.activeCues[_j].displayState;\n          addClass(cueEl, 'vjs-text-track-cue');\n          addClass(cueEl, 'vjs-text-track-cue-' + (_track2.language ? _track2.language : _i2));\n\n          if (_track2.language) {\n            setAttribute(cueEl, 'lang', _track2.language);\n          }\n        }\n\n        if (this.player_.textTrackSettings) {\n          this.updateDisplayState(_track2);\n        }\n      }\n    };\n\n    return TextTrackDisplay;\n  }(Component$1);\n\n  Component$1.registerComponent('TextTrackDisplay', TextTrackDisplay);\n\n  /**\n   * A loading spinner for use during waiting/loading events.\n   *\n   * @extends Component\n   */\n\n  var LoadingSpinner = /*#__PURE__*/function (_Component) {\n    inheritsLoose(LoadingSpinner, _Component);\n\n    function LoadingSpinner() {\n      return _Component.apply(this, arguments) || this;\n    }\n\n    var _proto = LoadingSpinner.prototype;\n\n    /**\n     * Create the `LoadingSpinner`s DOM element.\n     *\n     * @return {Element}\n     *         The dom element that gets created.\n     */\n    _proto.createEl = function createEl$1() {\n      var isAudio = this.player_.isAudio();\n      var playerType = this.localize(isAudio ? 'Audio Player' : 'Video Player');\n      var controlText = createEl('span', {\n        className: 'vjs-control-text',\n        textContent: this.localize('{1} is loading.', [playerType])\n      });\n\n      var el = _Component.prototype.createEl.call(this, 'div', {\n        className: 'vjs-loading-spinner',\n        dir: 'ltr'\n      });\n\n      el.appendChild(controlText);\n      return el;\n    };\n\n    return LoadingSpinner;\n  }(Component$1);\n\n  Component$1.registerComponent('LoadingSpinner', LoadingSpinner);\n\n  /**\n   * Base class for all buttons.\n   *\n   * @extends ClickableComponent\n   */\n\n  var Button = /*#__PURE__*/function (_ClickableComponent) {\n    inheritsLoose(Button, _ClickableComponent);\n\n    function Button() {\n      return _ClickableComponent.apply(this, arguments) || this;\n    }\n\n    var _proto = Button.prototype;\n\n    /**\n     * Create the `Button`s DOM element.\n     *\n     * @param {string} [tag=\"button\"]\n     *        The element's node type. This argument is IGNORED: no matter what\n     *        is passed, it will always create a `button` element.\n     *\n     * @param {Object} [props={}]\n     *        An object of properties that should be set on the element.\n     *\n     * @param {Object} [attributes={}]\n     *        An object of attributes that should be set on the element.\n     *\n     * @return {Element}\n     *         The element that gets created.\n     */\n    _proto.createEl = function createEl$1(tag, props, attributes) {\n      if (props === void 0) {\n        props = {};\n      }\n\n      if (attributes === void 0) {\n        attributes = {};\n      }\n\n      tag = 'button';\n      props = assign({\n        className: this.buildCSSClass()\n      }, props); // Add attributes for button element\n\n      attributes = assign({\n        // Necessary since the default button type is \"submit\"\n        type: 'button'\n      }, attributes);\n\n      var el = createEl(tag, props, attributes);\n\n      el.appendChild(createEl('span', {\n        className: 'vjs-icon-placeholder'\n      }, {\n        'aria-hidden': true\n      }));\n      this.createControlTextEl(el);\n      return el;\n    }\n    /**\n     * Add a child `Component` inside of this `Button`.\n     *\n     * @param {string|Component} child\n     *        The name or instance of a child to add.\n     *\n     * @param {Object} [options={}]\n     *        The key/value store of options that will get passed to children of\n     *        the child.\n     *\n     * @return {Component}\n     *         The `Component` that gets added as a child. When using a string the\n     *         `Component` will get created by this process.\n     *\n     * @deprecated since version 5\n     */\n    ;\n\n    _proto.addChild = function addChild(child, options) {\n      if (options === void 0) {\n        options = {};\n      }\n\n      var className = this.constructor.name;\n      log$1.warn(\"Adding an actionable (user controllable) child to a Button (\" + className + \") is not supported; use a ClickableComponent instead.\"); // Avoid the error message generated by ClickableComponent's addChild method\n\n      return Component$1.prototype.addChild.call(this, child, options);\n    }\n    /**\n     * Enable the `Button` element so that it can be activated or clicked. Use this with\n     * {@link Button#disable}.\n     */\n    ;\n\n    _proto.enable = function enable() {\n      _ClickableComponent.prototype.enable.call(this);\n\n      this.el_.removeAttribute('disabled');\n    }\n    /**\n     * Disable the `Button` element so that it cannot be activated or clicked. Use this with\n     * {@link Button#enable}.\n     */\n    ;\n\n    _proto.disable = function disable() {\n      _ClickableComponent.prototype.disable.call(this);\n\n      this.el_.setAttribute('disabled', 'disabled');\n    }\n    /**\n     * This gets called when a `Button` has focus and `keydown` is triggered via a key\n     * press.\n     *\n     * @param {EventTarget~Event} event\n     *        The event that caused this function to get called.\n     *\n     * @listens keydown\n     */\n    ;\n\n    _proto.handleKeyDown = function handleKeyDown(event) {\n      // Ignore Space or Enter key operation, which is handled by the browser for\n      // a button - though not for its super class, ClickableComponent. Also,\n      // prevent the event from propagating through the DOM and triggering Player\n      // hotkeys. We do not preventDefault here because we _want_ the browser to\n      // handle it.\n      if (keycode.isEventKey(event, 'Space') || keycode.isEventKey(event, 'Enter')) {\n        event.stopPropagation();\n        return;\n      } // Pass keypress handling up for unsupported keys\n\n\n      _ClickableComponent.prototype.handleKeyDown.call(this, event);\n    };\n\n    return Button;\n  }(ClickableComponent);\n\n  Component$1.registerComponent('Button', Button);\n\n  /**\n   * The initial play button that shows before the video has played. The hiding of the\n   * `BigPlayButton` get done via CSS and `Player` states.\n   *\n   * @extends Button\n   */\n\n  var BigPlayButton = /*#__PURE__*/function (_Button) {\n    inheritsLoose(BigPlayButton, _Button);\n\n    function BigPlayButton(player, options) {\n      var _this;\n\n      _this = _Button.call(this, player, options) || this;\n      _this.mouseused_ = false;\n\n      _this.on('mousedown', function (e) {\n        return _this.handleMouseDown(e);\n      });\n\n      return _this;\n    }\n    /**\n     * Builds the default DOM `className`.\n     *\n     * @return {string}\n     *         The DOM `className` for this object. Always returns 'vjs-big-play-button'.\n     */\n\n\n    var _proto = BigPlayButton.prototype;\n\n    _proto.buildCSSClass = function buildCSSClass() {\n      return 'vjs-big-play-button';\n    }\n    /**\n     * This gets called when a `BigPlayButton` \"clicked\". See {@link ClickableComponent}\n     * for more detailed information on what a click can be.\n     *\n     * @param {EventTarget~Event} event\n     *        The `keydown`, `tap`, or `click` event that caused this function to be\n     *        called.\n     *\n     * @listens tap\n     * @listens click\n     */\n    ;\n\n    _proto.handleClick = function handleClick(event) {\n      var playPromise = this.player_.play(); // exit early if clicked via the mouse\n\n      if (this.mouseused_ && event.clientX && event.clientY) {\n        var sourceIsEncrypted = this.player_.usingPlugin('eme') && this.player_.eme.sessions && this.player_.eme.sessions.length > 0;\n        silencePromise(playPromise);\n\n        if (this.player_.tech(true) && // We've observed a bug in IE and Edge when playing back DRM content where\n        // calling .focus() on the video element causes the video to go black,\n        // so we avoid it in that specific case\n        !((IE_VERSION || IS_EDGE) && sourceIsEncrypted)) {\n          this.player_.tech(true).focus();\n        }\n\n        return;\n      }\n\n      var cb = this.player_.getChild('controlBar');\n      var playToggle = cb && cb.getChild('playToggle');\n\n      if (!playToggle) {\n        this.player_.tech(true).focus();\n        return;\n      }\n\n      var playFocus = function playFocus() {\n        return playToggle.focus();\n      };\n\n      if (isPromise(playPromise)) {\n        playPromise.then(playFocus, function () {});\n      } else {\n        this.setTimeout(playFocus, 1);\n      }\n    };\n\n    _proto.handleKeyDown = function handleKeyDown(event) {\n      this.mouseused_ = false;\n\n      _Button.prototype.handleKeyDown.call(this, event);\n    };\n\n    _proto.handleMouseDown = function handleMouseDown(event) {\n      this.mouseused_ = true;\n    };\n\n    return BigPlayButton;\n  }(Button);\n  /**\n   * The text that should display over the `BigPlayButton`s controls. Added to for localization.\n   *\n   * @type {string}\n   * @private\n   */\n\n\n  BigPlayButton.prototype.controlText_ = 'Play Video';\n  Component$1.registerComponent('BigPlayButton', BigPlayButton);\n\n  /**\n   * The `CloseButton` is a `{@link Button}` that fires a `close` event when\n   * it gets clicked.\n   *\n   * @extends Button\n   */\n\n  var CloseButton = /*#__PURE__*/function (_Button) {\n    inheritsLoose(CloseButton, _Button);\n\n    /**\n    * Creates an instance of the this class.\n    *\n    * @param  {Player} player\n    *         The `Player` that this class should be attached to.\n    *\n    * @param  {Object} [options]\n    *         The key/value store of player options.\n    */\n    function CloseButton(player, options) {\n      var _this;\n\n      _this = _Button.call(this, player, options) || this;\n\n      _this.controlText(options && options.controlText || _this.localize('Close'));\n\n      return _this;\n    }\n    /**\n    * Builds the default DOM `className`.\n    *\n    * @return {string}\n    *         The DOM `className` for this object.\n    */\n\n\n    var _proto = CloseButton.prototype;\n\n    _proto.buildCSSClass = function buildCSSClass() {\n      return \"vjs-close-button \" + _Button.prototype.buildCSSClass.call(this);\n    }\n    /**\n     * This gets called when a `CloseButton` gets clicked. See\n     * {@link ClickableComponent#handleClick} for more information on when\n     * this will be triggered\n     *\n     * @param {EventTarget~Event} event\n     *        The `keydown`, `tap`, or `click` event that caused this function to be\n     *        called.\n     *\n     * @listens tap\n     * @listens click\n     * @fires CloseButton#close\n     */\n    ;\n\n    _proto.handleClick = function handleClick(event) {\n      /**\n       * Triggered when the a `CloseButton` is clicked.\n       *\n       * @event CloseButton#close\n       * @type {EventTarget~Event}\n       *\n       * @property {boolean} [bubbles=false]\n       *           set to false so that the close event does not\n       *           bubble up to parents if there is no listener\n       */\n      this.trigger({\n        type: 'close',\n        bubbles: false\n      });\n    }\n    /**\n     * Event handler that is called when a `CloseButton` receives a\n     * `keydown` event.\n     *\n     * By default, if the key is Esc, it will trigger a `click` event.\n     *\n     * @param {EventTarget~Event} event\n     *        The `keydown` event that caused this function to be called.\n     *\n     * @listens keydown\n     */\n    ;\n\n    _proto.handleKeyDown = function handleKeyDown(event) {\n      // Esc button will trigger `click` event\n      if (keycode.isEventKey(event, 'Esc')) {\n        event.preventDefault();\n        event.stopPropagation();\n        this.trigger('click');\n      } else {\n        // Pass keypress handling up for unsupported keys\n        _Button.prototype.handleKeyDown.call(this, event);\n      }\n    };\n\n    return CloseButton;\n  }(Button);\n\n  Component$1.registerComponent('CloseButton', CloseButton);\n\n  /**\n   * Button to toggle between play and pause.\n   *\n   * @extends Button\n   */\n\n  var PlayToggle = /*#__PURE__*/function (_Button) {\n    inheritsLoose(PlayToggle, _Button);\n\n    /**\n     * Creates an instance of this class.\n     *\n     * @param {Player} player\n     *        The `Player` that this class should be attached to.\n     *\n     * @param {Object} [options={}]\n     *        The key/value store of player options.\n     */\n    function PlayToggle(player, options) {\n      var _this;\n\n      if (options === void 0) {\n        options = {};\n      }\n\n      _this = _Button.call(this, player, options) || this; // show or hide replay icon\n\n      options.replay = options.replay === undefined || options.replay;\n\n      _this.on(player, 'play', function (e) {\n        return _this.handlePlay(e);\n      });\n\n      _this.on(player, 'pause', function (e) {\n        return _this.handlePause(e);\n      });\n\n      if (options.replay) {\n        _this.on(player, 'ended', function (e) {\n          return _this.handleEnded(e);\n        });\n      }\n\n      return _this;\n    }\n    /**\n     * Builds the default DOM `className`.\n     *\n     * @return {string}\n     *         The DOM `className` for this object.\n     */\n\n\n    var _proto = PlayToggle.prototype;\n\n    _proto.buildCSSClass = function buildCSSClass() {\n      return \"vjs-play-control \" + _Button.prototype.buildCSSClass.call(this);\n    }\n    /**\n     * This gets called when an `PlayToggle` is \"clicked\". See\n     * {@link ClickableComponent} for more detailed information on what a click can be.\n     *\n     * @param {EventTarget~Event} [event]\n     *        The `keydown`, `tap`, or `click` event that caused this function to be\n     *        called.\n     *\n     * @listens tap\n     * @listens click\n     */\n    ;\n\n    _proto.handleClick = function handleClick(event) {\n      if (this.player_.paused()) {\n        silencePromise(this.player_.play());\n      } else {\n        this.player_.pause();\n      }\n    }\n    /**\n     * This gets called once after the video has ended and the user seeks so that\n     * we can change the replay button back to a play button.\n     *\n     * @param {EventTarget~Event} [event]\n     *        The event that caused this function to run.\n     *\n     * @listens Player#seeked\n     */\n    ;\n\n    _proto.handleSeeked = function handleSeeked(event) {\n      this.removeClass('vjs-ended');\n\n      if (this.player_.paused()) {\n        this.handlePause(event);\n      } else {\n        this.handlePlay(event);\n      }\n    }\n    /**\n     * Add the vjs-playing class to the element so it can change appearance.\n     *\n     * @param {EventTarget~Event} [event]\n     *        The event that caused this function to run.\n     *\n     * @listens Player#play\n     */\n    ;\n\n    _proto.handlePlay = function handlePlay(event) {\n      this.removeClass('vjs-ended');\n      this.removeClass('vjs-paused');\n      this.addClass('vjs-playing'); // change the button text to \"Pause\"\n\n      this.controlText('Pause');\n    }\n    /**\n     * Add the vjs-paused class to the element so it can change appearance.\n     *\n     * @param {EventTarget~Event} [event]\n     *        The event that caused this function to run.\n     *\n     * @listens Player#pause\n     */\n    ;\n\n    _proto.handlePause = function handlePause(event) {\n      this.removeClass('vjs-playing');\n      this.addClass('vjs-paused'); // change the button text to \"Play\"\n\n      this.controlText('Play');\n    }\n    /**\n     * Add the vjs-ended class to the element so it can change appearance\n     *\n     * @param {EventTarget~Event} [event]\n     *        The event that caused this function to run.\n     *\n     * @listens Player#ended\n     */\n    ;\n\n    _proto.handleEnded = function handleEnded(event) {\n      var _this2 = this;\n\n      this.removeClass('vjs-playing');\n      this.addClass('vjs-ended'); // change the button text to \"Replay\"\n\n      this.controlText('Replay'); // on the next seek remove the replay button\n\n      this.one(this.player_, 'seeked', function (e) {\n        return _this2.handleSeeked(e);\n      });\n    };\n\n    return PlayToggle;\n  }(Button);\n  /**\n   * The text that should display over the `PlayToggle`s controls. Added for localization.\n   *\n   * @type {string}\n   * @private\n   */\n\n\n  PlayToggle.prototype.controlText_ = 'Play';\n  Component$1.registerComponent('PlayToggle', PlayToggle);\n\n  /**\n   * @file format-time.js\n   * @module format-time\n   */\n\n  /**\n   * Format seconds as a time string, H:MM:SS or M:SS. Supplying a guide (in\n   * seconds) will force a number of leading zeros to cover the length of the\n   * guide.\n   *\n   * @private\n   * @param  {number} seconds\n   *         Number of seconds to be turned into a string\n   *\n   * @param  {number} guide\n   *         Number (in seconds) to model the string after\n   *\n   * @return {string}\n   *         Time formatted as H:MM:SS or M:SS\n   */\n  var defaultImplementation = function defaultImplementation(seconds, guide) {\n    seconds = seconds < 0 ? 0 : seconds;\n    var s = Math.floor(seconds % 60);\n    var m = Math.floor(seconds / 60 % 60);\n    var h = Math.floor(seconds / 3600);\n    var gm = Math.floor(guide / 60 % 60);\n    var gh = Math.floor(guide / 3600); // handle invalid times\n\n    if (isNaN(seconds) || seconds === Infinity) {\n      // '-' is false for all relational operators (e.g. <, >=) so this setting\n      // will add the minimum number of fields specified by the guide\n      h = m = s = '-';\n    } // Check if we need to show hours\n\n\n    h = h > 0 || gh > 0 ? h + ':' : ''; // If hours are showing, we may need to add a leading zero.\n    // Always show at least one digit of minutes.\n\n    m = ((h || gm >= 10) && m < 10 ? '0' + m : m) + ':'; // Check if leading zero is need for seconds\n\n    s = s < 10 ? '0' + s : s;\n    return h + m + s;\n  }; // Internal pointer to the current implementation.\n\n\n  var implementation = defaultImplementation;\n  /**\n   * Replaces the default formatTime implementation with a custom implementation.\n   *\n   * @param {Function} customImplementation\n   *        A function which will be used in place of the default formatTime\n   *        implementation. Will receive the current time in seconds and the\n   *        guide (in seconds) as arguments.\n   */\n\n  function setFormatTime(customImplementation) {\n    implementation = customImplementation;\n  }\n  /**\n   * Resets formatTime to the default implementation.\n   */\n\n  function resetFormatTime() {\n    implementation = defaultImplementation;\n  }\n  /**\n   * Delegates to either the default time formatting function or a custom\n   * function supplied via `setFormatTime`.\n   *\n   * Formats seconds as a time string (H:MM:SS or M:SS). Supplying a\n   * guide (in seconds) will force a number of leading zeros to cover the\n   * length of the guide.\n   *\n   * @static\n   * @example  formatTime(125, 600) === \"02:05\"\n   * @param    {number} seconds\n   *           Number of seconds to be turned into a string\n   *\n   * @param    {number} guide\n   *           Number (in seconds) to model the string after\n   *\n   * @return   {string}\n   *           Time formatted as H:MM:SS or M:SS\n   */\n\n  function formatTime(seconds, guide) {\n    if (guide === void 0) {\n      guide = seconds;\n    }\n\n    return implementation(seconds, guide);\n  }\n\n  /**\n   * Displays time information about the video\n   *\n   * @extends Component\n   */\n\n  var TimeDisplay = /*#__PURE__*/function (_Component) {\n    inheritsLoose(TimeDisplay, _Component);\n\n    /**\n     * Creates an instance of this class.\n     *\n     * @param {Player} player\n     *        The `Player` that this class should be attached to.\n     *\n     * @param {Object} [options]\n     *        The key/value store of player options.\n     */\n    function TimeDisplay(player, options) {\n      var _this;\n\n      _this = _Component.call(this, player, options) || this;\n\n      _this.on(player, ['timeupdate', 'ended'], function (e) {\n        return _this.updateContent(e);\n      });\n\n      _this.updateTextNode_();\n\n      return _this;\n    }\n    /**\n     * Create the `Component`'s DOM element\n     *\n     * @return {Element}\n     *         The element that was created.\n     */\n\n\n    var _proto = TimeDisplay.prototype;\n\n    _proto.createEl = function createEl$1() {\n      var className = this.buildCSSClass();\n\n      var el = _Component.prototype.createEl.call(this, 'div', {\n        className: className + \" vjs-time-control vjs-control\"\n      });\n\n      var span = createEl('span', {\n        className: 'vjs-control-text',\n        textContent: this.localize(this.labelText_) + \"\\xA0\"\n      }, {\n        role: 'presentation'\n      });\n      el.appendChild(span);\n      this.contentEl_ = createEl('span', {\n        className: className + \"-display\"\n      }, {\n        // tell screen readers not to automatically read the time as it changes\n        'aria-live': 'off',\n        // span elements have no implicit role, but some screen readers (notably VoiceOver)\n        // treat them as a break between items in the DOM when using arrow keys\n        // (or left-to-right swipes on iOS) to read contents of a page. Using\n        // role='presentation' causes VoiceOver to NOT treat this span as a break.\n        'role': 'presentation'\n      });\n      el.appendChild(this.contentEl_);\n      return el;\n    };\n\n    _proto.dispose = function dispose() {\n      this.contentEl_ = null;\n      this.textNode_ = null;\n\n      _Component.prototype.dispose.call(this);\n    }\n    /**\n     * Updates the time display text node with a new time\n     *\n     * @param {number} [time=0] the time to update to\n     *\n     * @private\n     */\n    ;\n\n    _proto.updateTextNode_ = function updateTextNode_(time) {\n      var _this2 = this;\n\n      if (time === void 0) {\n        time = 0;\n      }\n\n      time = formatTime(time);\n\n      if (this.formattedTime_ === time) {\n        return;\n      }\n\n      this.formattedTime_ = time;\n      this.requestNamedAnimationFrame('TimeDisplay#updateTextNode_', function () {\n        if (!_this2.contentEl_) {\n          return;\n        }\n\n        var oldNode = _this2.textNode_;\n\n        if (oldNode && _this2.contentEl_.firstChild !== oldNode) {\n          oldNode = null;\n          log$1.warn('TimeDisplay#updateTextnode_: Prevented replacement of text node element since it was no longer a child of this node. Appending a new node instead.');\n        }\n\n        _this2.textNode_ = document.createTextNode(_this2.formattedTime_);\n\n        if (!_this2.textNode_) {\n          return;\n        }\n\n        if (oldNode) {\n          _this2.contentEl_.replaceChild(_this2.textNode_, oldNode);\n        } else {\n          _this2.contentEl_.appendChild(_this2.textNode_);\n        }\n      });\n    }\n    /**\n     * To be filled out in the child class, should update the displayed time\n     * in accordance with the fact that the current time has changed.\n     *\n     * @param {EventTarget~Event} [event]\n     *        The `timeupdate`  event that caused this to run.\n     *\n     * @listens Player#timeupdate\n     */\n    ;\n\n    _proto.updateContent = function updateContent(event) {};\n\n    return TimeDisplay;\n  }(Component$1);\n  /**\n   * The text that is added to the `TimeDisplay` for screen reader users.\n   *\n   * @type {string}\n   * @private\n   */\n\n\n  TimeDisplay.prototype.labelText_ = 'Time';\n  /**\n   * The text that should display over the `TimeDisplay`s controls. Added to for localization.\n   *\n   * @type {string}\n   * @private\n   *\n   * @deprecated in v7; controlText_ is not used in non-active display Components\n   */\n\n  TimeDisplay.prototype.controlText_ = 'Time';\n  Component$1.registerComponent('TimeDisplay', TimeDisplay);\n\n  /**\n   * Displays the current time\n   *\n   * @extends Component\n   */\n\n  var CurrentTimeDisplay = /*#__PURE__*/function (_TimeDisplay) {\n    inheritsLoose(CurrentTimeDisplay, _TimeDisplay);\n\n    function CurrentTimeDisplay() {\n      return _TimeDisplay.apply(this, arguments) || this;\n    }\n\n    var _proto = CurrentTimeDisplay.prototype;\n\n    /**\n     * Builds the default DOM `className`.\n     *\n     * @return {string}\n     *         The DOM `className` for this object.\n     */\n    _proto.buildCSSClass = function buildCSSClass() {\n      return 'vjs-current-time';\n    }\n    /**\n     * Update current time display\n     *\n     * @param {EventTarget~Event} [event]\n     *        The `timeupdate` event that caused this function to run.\n     *\n     * @listens Player#timeupdate\n     */\n    ;\n\n    _proto.updateContent = function updateContent(event) {\n      // Allows for smooth scrubbing, when player can't keep up.\n      var time;\n\n      if (this.player_.ended()) {\n        time = this.player_.duration();\n      } else {\n        time = this.player_.scrubbing() ? this.player_.getCache().currentTime : this.player_.currentTime();\n      }\n\n      this.updateTextNode_(time);\n    };\n\n    return CurrentTimeDisplay;\n  }(TimeDisplay);\n  /**\n   * The text that is added to the `CurrentTimeDisplay` for screen reader users.\n   *\n   * @type {string}\n   * @private\n   */\n\n\n  CurrentTimeDisplay.prototype.labelText_ = 'Current Time';\n  /**\n   * The text that should display over the `CurrentTimeDisplay`s controls. Added to for localization.\n   *\n   * @type {string}\n   * @private\n   *\n   * @deprecated in v7; controlText_ is not used in non-active display Components\n   */\n\n  CurrentTimeDisplay.prototype.controlText_ = 'Current Time';\n  Component$1.registerComponent('CurrentTimeDisplay', CurrentTimeDisplay);\n\n  /**\n   * Displays the duration\n   *\n   * @extends Component\n   */\n\n  var DurationDisplay = /*#__PURE__*/function (_TimeDisplay) {\n    inheritsLoose(DurationDisplay, _TimeDisplay);\n\n    /**\n     * Creates an instance of this class.\n     *\n     * @param {Player} player\n     *        The `Player` that this class should be attached to.\n     *\n     * @param {Object} [options]\n     *        The key/value store of player options.\n     */\n    function DurationDisplay(player, options) {\n      var _this;\n\n      _this = _TimeDisplay.call(this, player, options) || this;\n\n      var updateContent = function updateContent(e) {\n        return _this.updateContent(e);\n      }; // we do not want to/need to throttle duration changes,\n      // as they should always display the changed duration as\n      // it has changed\n\n\n      _this.on(player, 'durationchange', updateContent); // Listen to loadstart because the player duration is reset when a new media element is loaded,\n      // but the durationchange on the user agent will not fire.\n      // @see [Spec]{@link https://www.w3.org/TR/2011/WD-html5-20110113/video.html#media-element-load-algorithm}\n\n\n      _this.on(player, 'loadstart', updateContent); // Also listen for timeupdate (in the parent) and loadedmetadata because removing those\n      // listeners could have broken dependent applications/libraries. These\n      // can likely be removed for 7.0.\n\n\n      _this.on(player, 'loadedmetadata', updateContent);\n\n      return _this;\n    }\n    /**\n     * Builds the default DOM `className`.\n     *\n     * @return {string}\n     *         The DOM `className` for this object.\n     */\n\n\n    var _proto = DurationDisplay.prototype;\n\n    _proto.buildCSSClass = function buildCSSClass() {\n      return 'vjs-duration';\n    }\n    /**\n     * Update duration time display.\n     *\n     * @param {EventTarget~Event} [event]\n     *        The `durationchange`, `timeupdate`, or `loadedmetadata` event that caused\n     *        this function to be called.\n     *\n     * @listens Player#durationchange\n     * @listens Player#timeupdate\n     * @listens Player#loadedmetadata\n     */\n    ;\n\n    _proto.updateContent = function updateContent(event) {\n      var duration = this.player_.duration();\n      this.updateTextNode_(duration);\n    };\n\n    return DurationDisplay;\n  }(TimeDisplay);\n  /**\n   * The text that is added to the `DurationDisplay` for screen reader users.\n   *\n   * @type {string}\n   * @private\n   */\n\n\n  DurationDisplay.prototype.labelText_ = 'Duration';\n  /**\n   * The text that should display over the `DurationDisplay`s controls. Added to for localization.\n   *\n   * @type {string}\n   * @private\n   *\n   * @deprecated in v7; controlText_ is not used in non-active display Components\n   */\n\n  DurationDisplay.prototype.controlText_ = 'Duration';\n  Component$1.registerComponent('DurationDisplay', DurationDisplay);\n\n  /**\n   * The separator between the current time and duration.\n   * Can be hidden if it's not needed in the design.\n   *\n   * @extends Component\n   */\n\n  var TimeDivider = /*#__PURE__*/function (_Component) {\n    inheritsLoose(TimeDivider, _Component);\n\n    function TimeDivider() {\n      return _Component.apply(this, arguments) || this;\n    }\n\n    var _proto = TimeDivider.prototype;\n\n    /**\n     * Create the component's DOM element\n     *\n     * @return {Element}\n     *         The element that was created.\n     */\n    _proto.createEl = function createEl() {\n      var el = _Component.prototype.createEl.call(this, 'div', {\n        className: 'vjs-time-control vjs-time-divider'\n      }, {\n        // this element and its contents can be hidden from assistive techs since\n        // it is made extraneous by the announcement of the control text\n        // for the current time and duration displays\n        'aria-hidden': true\n      });\n\n      var div = _Component.prototype.createEl.call(this, 'div');\n\n      var span = _Component.prototype.createEl.call(this, 'span', {\n        textContent: '/'\n      });\n\n      div.appendChild(span);\n      el.appendChild(div);\n      return el;\n    };\n\n    return TimeDivider;\n  }(Component$1);\n\n  Component$1.registerComponent('TimeDivider', TimeDivider);\n\n  /**\n   * Displays the time left in the video\n   *\n   * @extends Component\n   */\n\n  var RemainingTimeDisplay = /*#__PURE__*/function (_TimeDisplay) {\n    inheritsLoose(RemainingTimeDisplay, _TimeDisplay);\n\n    /**\n     * Creates an instance of this class.\n     *\n     * @param {Player} player\n     *        The `Player` that this class should be attached to.\n     *\n     * @param {Object} [options]\n     *        The key/value store of player options.\n     */\n    function RemainingTimeDisplay(player, options) {\n      var _this;\n\n      _this = _TimeDisplay.call(this, player, options) || this;\n\n      _this.on(player, 'durationchange', function (e) {\n        return _this.updateContent(e);\n      });\n\n      return _this;\n    }\n    /**\n     * Builds the default DOM `className`.\n     *\n     * @return {string}\n     *         The DOM `className` for this object.\n     */\n\n\n    var _proto = RemainingTimeDisplay.prototype;\n\n    _proto.buildCSSClass = function buildCSSClass() {\n      return 'vjs-remaining-time';\n    }\n    /**\n     * Create the `Component`'s DOM element with the \"minus\" characted prepend to the time\n     *\n     * @return {Element}\n     *         The element that was created.\n     */\n    ;\n\n    _proto.createEl = function createEl$1() {\n      var el = _TimeDisplay.prototype.createEl.call(this);\n\n      if (this.options_.displayNegative !== false) {\n        el.insertBefore(createEl('span', {}, {\n          'aria-hidden': true\n        }, '-'), this.contentEl_);\n      }\n\n      return el;\n    }\n    /**\n     * Update remaining time display.\n     *\n     * @param {EventTarget~Event} [event]\n     *        The `timeupdate` or `durationchange` event that caused this to run.\n     *\n     * @listens Player#timeupdate\n     * @listens Player#durationchange\n     */\n    ;\n\n    _proto.updateContent = function updateContent(event) {\n      if (typeof this.player_.duration() !== 'number') {\n        return;\n      }\n\n      var time; // @deprecated We should only use remainingTimeDisplay\n      // as of video.js 7\n\n      if (this.player_.ended()) {\n        time = 0;\n      } else if (this.player_.remainingTimeDisplay) {\n        time = this.player_.remainingTimeDisplay();\n      } else {\n        time = this.player_.remainingTime();\n      }\n\n      this.updateTextNode_(time);\n    };\n\n    return RemainingTimeDisplay;\n  }(TimeDisplay);\n  /**\n   * The text that is added to the `RemainingTimeDisplay` for screen reader users.\n   *\n   * @type {string}\n   * @private\n   */\n\n\n  RemainingTimeDisplay.prototype.labelText_ = 'Remaining Time';\n  /**\n   * The text that should display over the `RemainingTimeDisplay`s controls. Added to for localization.\n   *\n   * @type {string}\n   * @private\n   *\n   * @deprecated in v7; controlText_ is not used in non-active display Components\n   */\n\n  RemainingTimeDisplay.prototype.controlText_ = 'Remaining Time';\n  Component$1.registerComponent('RemainingTimeDisplay', RemainingTimeDisplay);\n\n  /**\n   * Displays the live indicator when duration is Infinity.\n   *\n   * @extends Component\n   */\n\n  var LiveDisplay = /*#__PURE__*/function (_Component) {\n    inheritsLoose(LiveDisplay, _Component);\n\n    /**\n     * Creates an instance of this class.\n     *\n     * @param {Player} player\n     *        The `Player` that this class should be attached to.\n     *\n     * @param {Object} [options]\n     *        The key/value store of player options.\n     */\n    function LiveDisplay(player, options) {\n      var _this;\n\n      _this = _Component.call(this, player, options) || this;\n\n      _this.updateShowing();\n\n      _this.on(_this.player(), 'durationchange', function (e) {\n        return _this.updateShowing(e);\n      });\n\n      return _this;\n    }\n    /**\n     * Create the `Component`'s DOM element\n     *\n     * @return {Element}\n     *         The element that was created.\n     */\n\n\n    var _proto = LiveDisplay.prototype;\n\n    _proto.createEl = function createEl$1() {\n      var el = _Component.prototype.createEl.call(this, 'div', {\n        className: 'vjs-live-control vjs-control'\n      });\n\n      this.contentEl_ = createEl('div', {\n        className: 'vjs-live-display'\n      }, {\n        'aria-live': 'off'\n      });\n      this.contentEl_.appendChild(createEl('span', {\n        className: 'vjs-control-text',\n        textContent: this.localize('Stream Type') + \"\\xA0\"\n      }));\n      this.contentEl_.appendChild(document.createTextNode(this.localize('LIVE')));\n      el.appendChild(this.contentEl_);\n      return el;\n    };\n\n    _proto.dispose = function dispose() {\n      this.contentEl_ = null;\n\n      _Component.prototype.dispose.call(this);\n    }\n    /**\n     * Check the duration to see if the LiveDisplay should be showing or not. Then show/hide\n     * it accordingly\n     *\n     * @param {EventTarget~Event} [event]\n     *        The {@link Player#durationchange} event that caused this function to run.\n     *\n     * @listens Player#durationchange\n     */\n    ;\n\n    _proto.updateShowing = function updateShowing(event) {\n      if (this.player().duration() === Infinity) {\n        this.show();\n      } else {\n        this.hide();\n      }\n    };\n\n    return LiveDisplay;\n  }(Component$1);\n\n  Component$1.registerComponent('LiveDisplay', LiveDisplay);\n\n  /**\n   * Displays the live indicator when duration is Infinity.\n   *\n   * @extends Component\n   */\n\n  var SeekToLive = /*#__PURE__*/function (_Button) {\n    inheritsLoose(SeekToLive, _Button);\n\n    /**\n     * Creates an instance of this class.\n     *\n     * @param {Player} player\n     *        The `Player` that this class should be attached to.\n     *\n     * @param {Object} [options]\n     *        The key/value store of player options.\n     */\n    function SeekToLive(player, options) {\n      var _this;\n\n      _this = _Button.call(this, player, options) || this;\n\n      _this.updateLiveEdgeStatus();\n\n      if (_this.player_.liveTracker) {\n        _this.updateLiveEdgeStatusHandler_ = function (e) {\n          return _this.updateLiveEdgeStatus(e);\n        };\n\n        _this.on(_this.player_.liveTracker, 'liveedgechange', _this.updateLiveEdgeStatusHandler_);\n      }\n\n      return _this;\n    }\n    /**\n     * Create the `Component`'s DOM element\n     *\n     * @return {Element}\n     *         The element that was created.\n     */\n\n\n    var _proto = SeekToLive.prototype;\n\n    _proto.createEl = function createEl$1() {\n      var el = _Button.prototype.createEl.call(this, 'button', {\n        className: 'vjs-seek-to-live-control vjs-control'\n      });\n\n      this.textEl_ = createEl('span', {\n        className: 'vjs-seek-to-live-text',\n        textContent: this.localize('LIVE')\n      }, {\n        'aria-hidden': 'true'\n      });\n      el.appendChild(this.textEl_);\n      return el;\n    }\n    /**\n     * Update the state of this button if we are at the live edge\n     * or not\n     */\n    ;\n\n    _proto.updateLiveEdgeStatus = function updateLiveEdgeStatus() {\n      // default to live edge\n      if (!this.player_.liveTracker || this.player_.liveTracker.atLiveEdge()) {\n        this.setAttribute('aria-disabled', true);\n        this.addClass('vjs-at-live-edge');\n        this.controlText('Seek to live, currently playing live');\n      } else {\n        this.setAttribute('aria-disabled', false);\n        this.removeClass('vjs-at-live-edge');\n        this.controlText('Seek to live, currently behind live');\n      }\n    }\n    /**\n     * On click bring us as near to the live point as possible.\n     * This requires that we wait for the next `live-seekable-change`\n     * event which will happen every segment length seconds.\n     */\n    ;\n\n    _proto.handleClick = function handleClick() {\n      this.player_.liveTracker.seekToLiveEdge();\n    }\n    /**\n     * Dispose of the element and stop tracking\n     */\n    ;\n\n    _proto.dispose = function dispose() {\n      if (this.player_.liveTracker) {\n        this.off(this.player_.liveTracker, 'liveedgechange', this.updateLiveEdgeStatusHandler_);\n      }\n\n      this.textEl_ = null;\n\n      _Button.prototype.dispose.call(this);\n    };\n\n    return SeekToLive;\n  }(Button);\n\n  SeekToLive.prototype.controlText_ = 'Seek to live, currently playing live';\n  Component$1.registerComponent('SeekToLive', SeekToLive);\n\n  /**\n   * Keep a number between a min and a max value\n   *\n   * @param {number} number\n   *        The number to clamp\n   *\n   * @param {number} min\n   *        The minimum value\n   * @param {number} max\n   *        The maximum value\n   *\n   * @return {number}\n   *         the clamped number\n   */\n  var clamp = function clamp(number, min, max) {\n    number = Number(number);\n    return Math.min(max, Math.max(min, isNaN(number) ? min : number));\n  };\n\n  /**\n   * The base functionality for a slider. Can be vertical or horizontal.\n   * For instance the volume bar or the seek bar on a video is a slider.\n   *\n   * @extends Component\n   */\n\n  var Slider = /*#__PURE__*/function (_Component) {\n    inheritsLoose(Slider, _Component);\n\n    /**\n    * Create an instance of this class\n    *\n    * @param {Player} player\n    *        The `Player` that this class should be attached to.\n    *\n    * @param {Object} [options]\n    *        The key/value store of player options.\n    */\n    function Slider(player, options) {\n      var _this;\n\n      _this = _Component.call(this, player, options) || this;\n\n      _this.handleMouseDown_ = function (e) {\n        return _this.handleMouseDown(e);\n      };\n\n      _this.handleMouseUp_ = function (e) {\n        return _this.handleMouseUp(e);\n      };\n\n      _this.handleKeyDown_ = function (e) {\n        return _this.handleKeyDown(e);\n      };\n\n      _this.handleClick_ = function (e) {\n        return _this.handleClick(e);\n      };\n\n      _this.handleMouseMove_ = function (e) {\n        return _this.handleMouseMove(e);\n      };\n\n      _this.update_ = function (e) {\n        return _this.update(e);\n      }; // Set property names to bar to match with the child Slider class is looking for\n\n\n      _this.bar = _this.getChild(_this.options_.barName); // Set a horizontal or vertical class on the slider depending on the slider type\n\n      _this.vertical(!!_this.options_.vertical);\n\n      _this.enable();\n\n      return _this;\n    }\n    /**\n     * Are controls are currently enabled for this slider or not.\n     *\n     * @return {boolean}\n     *         true if controls are enabled, false otherwise\n     */\n\n\n    var _proto = Slider.prototype;\n\n    _proto.enabled = function enabled() {\n      return this.enabled_;\n    }\n    /**\n     * Enable controls for this slider if they are disabled\n     */\n    ;\n\n    _proto.enable = function enable() {\n      if (this.enabled()) {\n        return;\n      }\n\n      this.on('mousedown', this.handleMouseDown_);\n      this.on('touchstart', this.handleMouseDown_);\n      this.on('keydown', this.handleKeyDown_);\n      this.on('click', this.handleClick_); // TODO: deprecated, controlsvisible does not seem to be fired\n\n      this.on(this.player_, 'controlsvisible', this.update);\n\n      if (this.playerEvent) {\n        this.on(this.player_, this.playerEvent, this.update);\n      }\n\n      this.removeClass('disabled');\n      this.setAttribute('tabindex', 0);\n      this.enabled_ = true;\n    }\n    /**\n     * Disable controls for this slider if they are enabled\n     */\n    ;\n\n    _proto.disable = function disable() {\n      if (!this.enabled()) {\n        return;\n      }\n\n      var doc = this.bar.el_.ownerDocument;\n      this.off('mousedown', this.handleMouseDown_);\n      this.off('touchstart', this.handleMouseDown_);\n      this.off('keydown', this.handleKeyDown_);\n      this.off('click', this.handleClick_);\n      this.off(this.player_, 'controlsvisible', this.update_);\n      this.off(doc, 'mousemove', this.handleMouseMove_);\n      this.off(doc, 'mouseup', this.handleMouseUp_);\n      this.off(doc, 'touchmove', this.handleMouseMove_);\n      this.off(doc, 'touchend', this.handleMouseUp_);\n      this.removeAttribute('tabindex');\n      this.addClass('disabled');\n\n      if (this.playerEvent) {\n        this.off(this.player_, this.playerEvent, this.update);\n      }\n\n      this.enabled_ = false;\n    }\n    /**\n     * Create the `Slider`s DOM element.\n     *\n     * @param {string} type\n     *        Type of element to create.\n     *\n     * @param {Object} [props={}]\n     *        List of properties in Object form.\n     *\n     * @param {Object} [attributes={}]\n     *        list of attributes in Object form.\n     *\n     * @return {Element}\n     *         The element that gets created.\n     */\n    ;\n\n    _proto.createEl = function createEl(type, props, attributes) {\n      if (props === void 0) {\n        props = {};\n      }\n\n      if (attributes === void 0) {\n        attributes = {};\n      }\n\n      // Add the slider element class to all sub classes\n      props.className = props.className + ' vjs-slider';\n      props = assign({\n        tabIndex: 0\n      }, props);\n      attributes = assign({\n        'role': 'slider',\n        'aria-valuenow': 0,\n        'aria-valuemin': 0,\n        'aria-valuemax': 100,\n        'tabIndex': 0\n      }, attributes);\n      return _Component.prototype.createEl.call(this, type, props, attributes);\n    }\n    /**\n     * Handle `mousedown` or `touchstart` events on the `Slider`.\n     *\n     * @param {EventTarget~Event} event\n     *        `mousedown` or `touchstart` event that triggered this function\n     *\n     * @listens mousedown\n     * @listens touchstart\n     * @fires Slider#slideractive\n     */\n    ;\n\n    _proto.handleMouseDown = function handleMouseDown(event) {\n      var doc = this.bar.el_.ownerDocument;\n\n      if (event.type === 'mousedown') {\n        event.preventDefault();\n      } // Do not call preventDefault() on touchstart in Chrome\n      // to avoid console warnings. Use a 'touch-action: none' style\n      // instead to prevent unintented scrolling.\n      // https://developers.google.com/web/updates/2017/01/scrolling-intervention\n\n\n      if (event.type === 'touchstart' && !IS_CHROME) {\n        event.preventDefault();\n      }\n\n      blockTextSelection();\n      this.addClass('vjs-sliding');\n      /**\n       * Triggered when the slider is in an active state\n       *\n       * @event Slider#slideractive\n       * @type {EventTarget~Event}\n       */\n\n      this.trigger('slideractive');\n      this.on(doc, 'mousemove', this.handleMouseMove_);\n      this.on(doc, 'mouseup', this.handleMouseUp_);\n      this.on(doc, 'touchmove', this.handleMouseMove_);\n      this.on(doc, 'touchend', this.handleMouseUp_);\n      this.handleMouseMove(event, true);\n    }\n    /**\n     * Handle the `mousemove`, `touchmove`, and `mousedown` events on this `Slider`.\n     * The `mousemove` and `touchmove` events will only only trigger this function during\n     * `mousedown` and `touchstart`. This is due to {@link Slider#handleMouseDown} and\n     * {@link Slider#handleMouseUp}.\n     *\n     * @param {EventTarget~Event} event\n     *        `mousedown`, `mousemove`, `touchstart`, or `touchmove` event that triggered\n     *        this function\n     * @param {boolean} mouseDown this is a flag that should be set to true if `handleMouseMove` is called directly. It allows us to skip things that should not happen if coming from mouse down but should happen on regular mouse move handler. Defaults to false.\n     *\n     * @listens mousemove\n     * @listens touchmove\n     */\n    ;\n\n    _proto.handleMouseMove = function handleMouseMove(event) {}\n    /**\n     * Handle `mouseup` or `touchend` events on the `Slider`.\n     *\n     * @param {EventTarget~Event} event\n     *        `mouseup` or `touchend` event that triggered this function.\n     *\n     * @listens touchend\n     * @listens mouseup\n     * @fires Slider#sliderinactive\n     */\n    ;\n\n    _proto.handleMouseUp = function handleMouseUp() {\n      var doc = this.bar.el_.ownerDocument;\n      unblockTextSelection();\n      this.removeClass('vjs-sliding');\n      /**\n       * Triggered when the slider is no longer in an active state.\n       *\n       * @event Slider#sliderinactive\n       * @type {EventTarget~Event}\n       */\n\n      this.trigger('sliderinactive');\n      this.off(doc, 'mousemove', this.handleMouseMove_);\n      this.off(doc, 'mouseup', this.handleMouseUp_);\n      this.off(doc, 'touchmove', this.handleMouseMove_);\n      this.off(doc, 'touchend', this.handleMouseUp_);\n      this.update();\n    }\n    /**\n     * Update the progress bar of the `Slider`.\n     *\n     * @return {number}\n     *          The percentage of progress the progress bar represents as a\n     *          number from 0 to 1.\n     */\n    ;\n\n    _proto.update = function update() {\n      var _this2 = this;\n\n      // In VolumeBar init we have a setTimeout for update that pops and update\n      // to the end of the execution stack. The player is destroyed before then\n      // update will cause an error\n      // If there's no bar...\n      if (!this.el_ || !this.bar) {\n        return;\n      } // clamp progress between 0 and 1\n      // and only round to four decimal places, as we round to two below\n\n\n      var progress = this.getProgress();\n\n      if (progress === this.progress_) {\n        return progress;\n      }\n\n      this.progress_ = progress;\n      this.requestNamedAnimationFrame('Slider#update', function () {\n        // Set the new bar width or height\n        var sizeKey = _this2.vertical() ? 'height' : 'width'; // Convert to a percentage for css value\n\n        _this2.bar.el().style[sizeKey] = (progress * 100).toFixed(2) + '%';\n      });\n      return progress;\n    }\n    /**\n     * Get the percentage of the bar that should be filled\n     * but clamped and rounded.\n     *\n     * @return {number}\n     *         percentage filled that the slider is\n     */\n    ;\n\n    _proto.getProgress = function getProgress() {\n      return Number(clamp(this.getPercent(), 0, 1).toFixed(4));\n    }\n    /**\n     * Calculate distance for slider\n     *\n     * @param {EventTarget~Event} event\n     *        The event that caused this function to run.\n     *\n     * @return {number}\n     *         The current position of the Slider.\n     *         - position.x for vertical `Slider`s\n     *         - position.y for horizontal `Slider`s\n     */\n    ;\n\n    _proto.calculateDistance = function calculateDistance(event) {\n      var position = getPointerPosition(this.el_, event);\n\n      if (this.vertical()) {\n        return position.y;\n      }\n\n      return position.x;\n    }\n    /**\n     * Handle a `keydown` event on the `Slider`. Watches for left, rigth, up, and down\n     * arrow keys. This function will only be called when the slider has focus. See\n     * {@link Slider#handleFocus} and {@link Slider#handleBlur}.\n     *\n     * @param {EventTarget~Event} event\n     *        the `keydown` event that caused this function to run.\n     *\n     * @listens keydown\n     */\n    ;\n\n    _proto.handleKeyDown = function handleKeyDown(event) {\n      // Left and Down Arrows\n      if (keycode.isEventKey(event, 'Left') || keycode.isEventKey(event, 'Down')) {\n        event.preventDefault();\n        event.stopPropagation();\n        this.stepBack(); // Up and Right Arrows\n      } else if (keycode.isEventKey(event, 'Right') || keycode.isEventKey(event, 'Up')) {\n        event.preventDefault();\n        event.stopPropagation();\n        this.stepForward();\n      } else {\n        // Pass keydown handling up for unsupported keys\n        _Component.prototype.handleKeyDown.call(this, event);\n      }\n    }\n    /**\n     * Listener for click events on slider, used to prevent clicks\n     *   from bubbling up to parent elements like button menus.\n     *\n     * @param {Object} event\n     *        Event that caused this object to run\n     */\n    ;\n\n    _proto.handleClick = function handleClick(event) {\n      event.stopPropagation();\n      event.preventDefault();\n    }\n    /**\n     * Get/set if slider is horizontal for vertical\n     *\n     * @param {boolean} [bool]\n     *        - true if slider is vertical,\n     *        - false is horizontal\n     *\n     * @return {boolean}\n     *         - true if slider is vertical, and getting\n     *         - false if the slider is horizontal, and getting\n     */\n    ;\n\n    _proto.vertical = function vertical(bool) {\n      if (bool === undefined) {\n        return this.vertical_ || false;\n      }\n\n      this.vertical_ = !!bool;\n\n      if (this.vertical_) {\n        this.addClass('vjs-slider-vertical');\n      } else {\n        this.addClass('vjs-slider-horizontal');\n      }\n    };\n\n    return Slider;\n  }(Component$1);\n\n  Component$1.registerComponent('Slider', Slider);\n\n  var percentify = function percentify(time, end) {\n    return clamp(time / end * 100, 0, 100).toFixed(2) + '%';\n  };\n  /**\n   * Shows loading progress\n   *\n   * @extends Component\n   */\n\n\n  var LoadProgressBar = /*#__PURE__*/function (_Component) {\n    inheritsLoose(LoadProgressBar, _Component);\n\n    /**\n     * Creates an instance of this class.\n     *\n     * @param {Player} player\n     *        The `Player` that this class should be attached to.\n     *\n     * @param {Object} [options]\n     *        The key/value store of player options.\n     */\n    function LoadProgressBar(player, options) {\n      var _this;\n\n      _this = _Component.call(this, player, options) || this;\n      _this.partEls_ = [];\n\n      _this.on(player, 'progress', function (e) {\n        return _this.update(e);\n      });\n\n      return _this;\n    }\n    /**\n     * Create the `Component`'s DOM element\n     *\n     * @return {Element}\n     *         The element that was created.\n     */\n\n\n    var _proto = LoadProgressBar.prototype;\n\n    _proto.createEl = function createEl$1() {\n      var el = _Component.prototype.createEl.call(this, 'div', {\n        className: 'vjs-load-progress'\n      });\n\n      var wrapper = createEl('span', {\n        className: 'vjs-control-text'\n      });\n      var loadedText = createEl('span', {\n        textContent: this.localize('Loaded')\n      });\n      var separator = document.createTextNode(': ');\n      this.percentageEl_ = createEl('span', {\n        className: 'vjs-control-text-loaded-percentage',\n        textContent: '0%'\n      });\n      el.appendChild(wrapper);\n      wrapper.appendChild(loadedText);\n      wrapper.appendChild(separator);\n      wrapper.appendChild(this.percentageEl_);\n      return el;\n    };\n\n    _proto.dispose = function dispose() {\n      this.partEls_ = null;\n      this.percentageEl_ = null;\n\n      _Component.prototype.dispose.call(this);\n    }\n    /**\n     * Update progress bar\n     *\n     * @param {EventTarget~Event} [event]\n     *        The `progress` event that caused this function to run.\n     *\n     * @listens Player#progress\n     */\n    ;\n\n    _proto.update = function update(event) {\n      var _this2 = this;\n\n      this.requestNamedAnimationFrame('LoadProgressBar#update', function () {\n        var liveTracker = _this2.player_.liveTracker;\n\n        var buffered = _this2.player_.buffered();\n\n        var duration = liveTracker && liveTracker.isLive() ? liveTracker.seekableEnd() : _this2.player_.duration();\n\n        var bufferedEnd = _this2.player_.bufferedEnd();\n\n        var children = _this2.partEls_;\n        var percent = percentify(bufferedEnd, duration);\n\n        if (_this2.percent_ !== percent) {\n          // update the width of the progress bar\n          _this2.el_.style.width = percent; // update the control-text\n\n          textContent(_this2.percentageEl_, percent);\n          _this2.percent_ = percent;\n        } // add child elements to represent the individual buffered time ranges\n\n\n        for (var i = 0; i < buffered.length; i++) {\n          var start = buffered.start(i);\n          var end = buffered.end(i);\n          var part = children[i];\n\n          if (!part) {\n            part = _this2.el_.appendChild(createEl());\n            children[i] = part;\n          } //  only update if changed\n\n\n          if (part.dataset.start === start && part.dataset.end === end) {\n            continue;\n          }\n\n          part.dataset.start = start;\n          part.dataset.end = end; // set the percent based on the width of the progress bar (bufferedEnd)\n\n          part.style.left = percentify(start, bufferedEnd);\n          part.style.width = percentify(end - start, bufferedEnd);\n        } // remove unused buffered range elements\n\n\n        for (var _i = children.length; _i > buffered.length; _i--) {\n          _this2.el_.removeChild(children[_i - 1]);\n        }\n\n        children.length = buffered.length;\n      });\n    };\n\n    return LoadProgressBar;\n  }(Component$1);\n\n  Component$1.registerComponent('LoadProgressBar', LoadProgressBar);\n\n  /**\n   * Time tooltips display a time above the progress bar.\n   *\n   * @extends Component\n   */\n\n  var TimeTooltip = /*#__PURE__*/function (_Component) {\n    inheritsLoose(TimeTooltip, _Component);\n\n    /**\n     * Creates an instance of this class.\n     *\n     * @param {Player} player\n     *        The {@link Player} that this class should be attached to.\n     *\n     * @param {Object} [options]\n     *        The key/value store of player options.\n     */\n    function TimeTooltip(player, options) {\n      var _this;\n\n      _this = _Component.call(this, player, options) || this;\n      _this.update = throttle(bind(assertThisInitialized(_this), _this.update), UPDATE_REFRESH_INTERVAL);\n      return _this;\n    }\n    /**\n     * Create the time tooltip DOM element\n     *\n     * @return {Element}\n     *         The element that was created.\n     */\n\n\n    var _proto = TimeTooltip.prototype;\n\n    _proto.createEl = function createEl() {\n      return _Component.prototype.createEl.call(this, 'div', {\n        className: 'vjs-time-tooltip'\n      }, {\n        'aria-hidden': 'true'\n      });\n    }\n    /**\n     * Updates the position of the time tooltip relative to the `SeekBar`.\n     *\n     * @param {Object} seekBarRect\n     *        The `ClientRect` for the {@link SeekBar} element.\n     *\n     * @param {number} seekBarPoint\n     *        A number from 0 to 1, representing a horizontal reference point\n     *        from the left edge of the {@link SeekBar}\n     */\n    ;\n\n    _proto.update = function update(seekBarRect, seekBarPoint, content) {\n      var tooltipRect = findPosition(this.el_);\n      var playerRect = getBoundingClientRect(this.player_.el());\n      var seekBarPointPx = seekBarRect.width * seekBarPoint; // do nothing if either rect isn't available\n      // for example, if the player isn't in the DOM for testing\n\n      if (!playerRect || !tooltipRect) {\n        return;\n      } // This is the space left of the `seekBarPoint` available within the bounds\n      // of the player. We calculate any gap between the left edge of the player\n      // and the left edge of the `SeekBar` and add the number of pixels in the\n      // `SeekBar` before hitting the `seekBarPoint`\n\n\n      var spaceLeftOfPoint = seekBarRect.left - playerRect.left + seekBarPointPx; // This is the space right of the `seekBarPoint` available within the bounds\n      // of the player. We calculate the number of pixels from the `seekBarPoint`\n      // to the right edge of the `SeekBar` and add to that any gap between the\n      // right edge of the `SeekBar` and the player.\n\n      var spaceRightOfPoint = seekBarRect.width - seekBarPointPx + (playerRect.right - seekBarRect.right); // This is the number of pixels by which the tooltip will need to be pulled\n      // further to the right to center it over the `seekBarPoint`.\n\n      var pullTooltipBy = tooltipRect.width / 2; // Adjust the `pullTooltipBy` distance to the left or right depending on\n      // the results of the space calculations above.\n\n      if (spaceLeftOfPoint < pullTooltipBy) {\n        pullTooltipBy += pullTooltipBy - spaceLeftOfPoint;\n      } else if (spaceRightOfPoint < pullTooltipBy) {\n        pullTooltipBy = spaceRightOfPoint;\n      } // Due to the imprecision of decimal/ratio based calculations and varying\n      // rounding behaviors, there are cases where the spacing adjustment is off\n      // by a pixel or two. This adds insurance to these calculations.\n\n\n      if (pullTooltipBy < 0) {\n        pullTooltipBy = 0;\n      } else if (pullTooltipBy > tooltipRect.width) {\n        pullTooltipBy = tooltipRect.width;\n      } // prevent small width fluctuations within 0.4px from\n      // changing the value below.\n      // This really helps for live to prevent the play\n      // progress time tooltip from jittering\n\n\n      pullTooltipBy = Math.round(pullTooltipBy);\n      this.el_.style.right = \"-\" + pullTooltipBy + \"px\";\n      this.write(content);\n    }\n    /**\n     * Write the time to the tooltip DOM element.\n     *\n     * @param {string} content\n     *        The formatted time for the tooltip.\n     */\n    ;\n\n    _proto.write = function write(content) {\n      textContent(this.el_, content);\n    }\n    /**\n     * Updates the position of the time tooltip relative to the `SeekBar`.\n     *\n     * @param {Object} seekBarRect\n     *        The `ClientRect` for the {@link SeekBar} element.\n     *\n     * @param {number} seekBarPoint\n     *        A number from 0 to 1, representing a horizontal reference point\n     *        from the left edge of the {@link SeekBar}\n     *\n     * @param {number} time\n     *        The time to update the tooltip to, not used during live playback\n     *\n     * @param {Function} cb\n     *        A function that will be called during the request animation frame\n     *        for tooltips that need to do additional animations from the default\n     */\n    ;\n\n    _proto.updateTime = function updateTime(seekBarRect, seekBarPoint, time, cb) {\n      var _this2 = this;\n\n      this.requestNamedAnimationFrame('TimeTooltip#updateTime', function () {\n        var content;\n\n        var duration = _this2.player_.duration();\n\n        if (_this2.player_.liveTracker && _this2.player_.liveTracker.isLive()) {\n          var liveWindow = _this2.player_.liveTracker.liveWindow();\n\n          var secondsBehind = liveWindow - seekBarPoint * liveWindow;\n          content = (secondsBehind < 1 ? '' : '-') + formatTime(secondsBehind, liveWindow);\n        } else {\n          content = formatTime(time, duration);\n        }\n\n        _this2.update(seekBarRect, seekBarPoint, content);\n\n        if (cb) {\n          cb();\n        }\n      });\n    };\n\n    return TimeTooltip;\n  }(Component$1);\n\n  Component$1.registerComponent('TimeTooltip', TimeTooltip);\n\n  /**\n   * Used by {@link SeekBar} to display media playback progress as part of the\n   * {@link ProgressControl}.\n   *\n   * @extends Component\n   */\n\n  var PlayProgressBar = /*#__PURE__*/function (_Component) {\n    inheritsLoose(PlayProgressBar, _Component);\n\n    /**\n     * Creates an instance of this class.\n     *\n     * @param {Player} player\n     *        The {@link Player} that this class should be attached to.\n     *\n     * @param {Object} [options]\n     *        The key/value store of player options.\n     */\n    function PlayProgressBar(player, options) {\n      var _this;\n\n      _this = _Component.call(this, player, options) || this;\n      _this.update = throttle(bind(assertThisInitialized(_this), _this.update), UPDATE_REFRESH_INTERVAL);\n      return _this;\n    }\n    /**\n     * Create the the DOM element for this class.\n     *\n     * @return {Element}\n     *         The element that was created.\n     */\n\n\n    var _proto = PlayProgressBar.prototype;\n\n    _proto.createEl = function createEl() {\n      return _Component.prototype.createEl.call(this, 'div', {\n        className: 'vjs-play-progress vjs-slider-bar'\n      }, {\n        'aria-hidden': 'true'\n      });\n    }\n    /**\n     * Enqueues updates to its own DOM as well as the DOM of its\n     * {@link TimeTooltip} child.\n     *\n     * @param {Object} seekBarRect\n     *        The `ClientRect` for the {@link SeekBar} element.\n     *\n     * @param {number} seekBarPoint\n     *        A number from 0 to 1, representing a horizontal reference point\n     *        from the left edge of the {@link SeekBar}\n     */\n    ;\n\n    _proto.update = function update(seekBarRect, seekBarPoint) {\n      var timeTooltip = this.getChild('timeTooltip');\n\n      if (!timeTooltip) {\n        return;\n      }\n\n      var time = this.player_.scrubbing() ? this.player_.getCache().currentTime : this.player_.currentTime();\n      timeTooltip.updateTime(seekBarRect, seekBarPoint, time);\n    };\n\n    return PlayProgressBar;\n  }(Component$1);\n  /**\n   * Default options for {@link PlayProgressBar}.\n   *\n   * @type {Object}\n   * @private\n   */\n\n\n  PlayProgressBar.prototype.options_ = {\n    children: []\n  }; // Time tooltips should not be added to a player on mobile devices\n\n  if (!IS_IOS && !IS_ANDROID) {\n    PlayProgressBar.prototype.options_.children.push('timeTooltip');\n  }\n\n  Component$1.registerComponent('PlayProgressBar', PlayProgressBar);\n\n  /**\n   * The {@link MouseTimeDisplay} component tracks mouse movement over the\n   * {@link ProgressControl}. It displays an indicator and a {@link TimeTooltip}\n   * indicating the time which is represented by a given point in the\n   * {@link ProgressControl}.\n   *\n   * @extends Component\n   */\n\n  var MouseTimeDisplay = /*#__PURE__*/function (_Component) {\n    inheritsLoose(MouseTimeDisplay, _Component);\n\n    /**\n     * Creates an instance of this class.\n     *\n     * @param {Player} player\n     *        The {@link Player} that this class should be attached to.\n     *\n     * @param {Object} [options]\n     *        The key/value store of player options.\n     */\n    function MouseTimeDisplay(player, options) {\n      var _this;\n\n      _this = _Component.call(this, player, options) || this;\n      _this.update = throttle(bind(assertThisInitialized(_this), _this.update), UPDATE_REFRESH_INTERVAL);\n      return _this;\n    }\n    /**\n     * Create the DOM element for this class.\n     *\n     * @return {Element}\n     *         The element that was created.\n     */\n\n\n    var _proto = MouseTimeDisplay.prototype;\n\n    _proto.createEl = function createEl() {\n      return _Component.prototype.createEl.call(this, 'div', {\n        className: 'vjs-mouse-display'\n      });\n    }\n    /**\n     * Enqueues updates to its own DOM as well as the DOM of its\n     * {@link TimeTooltip} child.\n     *\n     * @param {Object} seekBarRect\n     *        The `ClientRect` for the {@link SeekBar} element.\n     *\n     * @param {number} seekBarPoint\n     *        A number from 0 to 1, representing a horizontal reference point\n     *        from the left edge of the {@link SeekBar}\n     */\n    ;\n\n    _proto.update = function update(seekBarRect, seekBarPoint) {\n      var _this2 = this;\n\n      var time = seekBarPoint * this.player_.duration();\n      this.getChild('timeTooltip').updateTime(seekBarRect, seekBarPoint, time, function () {\n        _this2.el_.style.left = seekBarRect.width * seekBarPoint + \"px\";\n      });\n    };\n\n    return MouseTimeDisplay;\n  }(Component$1);\n  /**\n   * Default options for `MouseTimeDisplay`\n   *\n   * @type {Object}\n   * @private\n   */\n\n\n  MouseTimeDisplay.prototype.options_ = {\n    children: ['timeTooltip']\n  };\n  Component$1.registerComponent('MouseTimeDisplay', MouseTimeDisplay);\n\n  var STEP_SECONDS = 5; // The multiplier of STEP_SECONDS that PgUp/PgDown move the timeline.\n\n  var PAGE_KEY_MULTIPLIER = 12;\n  /**\n   * Seek bar and container for the progress bars. Uses {@link PlayProgressBar}\n   * as its `bar`.\n   *\n   * @extends Slider\n   */\n\n  var SeekBar = /*#__PURE__*/function (_Slider) {\n    inheritsLoose(SeekBar, _Slider);\n\n    /**\n     * Creates an instance of this class.\n     *\n     * @param {Player} player\n     *        The `Player` that this class should be attached to.\n     *\n     * @param {Object} [options]\n     *        The key/value store of player options.\n     */\n    function SeekBar(player, options) {\n      var _this;\n\n      _this = _Slider.call(this, player, options) || this;\n\n      _this.setEventHandlers_();\n\n      return _this;\n    }\n    /**\n     * Sets the event handlers\n     *\n     * @private\n     */\n\n\n    var _proto = SeekBar.prototype;\n\n    _proto.setEventHandlers_ = function setEventHandlers_() {\n      var _this2 = this;\n\n      this.update_ = bind(this, this.update);\n      this.update = throttle(this.update_, UPDATE_REFRESH_INTERVAL);\n      this.on(this.player_, ['ended', 'durationchange', 'timeupdate'], this.update);\n\n      if (this.player_.liveTracker) {\n        this.on(this.player_.liveTracker, 'liveedgechange', this.update);\n      } // when playing, let's ensure we smoothly update the play progress bar\n      // via an interval\n\n\n      this.updateInterval = null;\n\n      this.enableIntervalHandler_ = function (e) {\n        return _this2.enableInterval_(e);\n      };\n\n      this.disableIntervalHandler_ = function (e) {\n        return _this2.disableInterval_(e);\n      };\n\n      this.on(this.player_, ['playing'], this.enableIntervalHandler_);\n      this.on(this.player_, ['ended', 'pause', 'waiting'], this.disableIntervalHandler_); // we don't need to update the play progress if the document is hidden,\n      // also, this causes the CPU to spike and eventually crash the page on IE11.\n\n      if ('hidden' in document && 'visibilityState' in document) {\n        this.on(document, 'visibilitychange', this.toggleVisibility_);\n      }\n    };\n\n    _proto.toggleVisibility_ = function toggleVisibility_(e) {\n      if (document.visibilityState === 'hidden') {\n        this.cancelNamedAnimationFrame('SeekBar#update');\n        this.cancelNamedAnimationFrame('Slider#update');\n        this.disableInterval_(e);\n      } else {\n        if (!this.player_.ended() && !this.player_.paused()) {\n          this.enableInterval_();\n        } // we just switched back to the page and someone may be looking, so, update ASAP\n\n\n        this.update();\n      }\n    };\n\n    _proto.enableInterval_ = function enableInterval_() {\n      if (this.updateInterval) {\n        return;\n      }\n\n      this.updateInterval = this.setInterval(this.update, UPDATE_REFRESH_INTERVAL);\n    };\n\n    _proto.disableInterval_ = function disableInterval_(e) {\n      if (this.player_.liveTracker && this.player_.liveTracker.isLive() && e && e.type !== 'ended') {\n        return;\n      }\n\n      if (!this.updateInterval) {\n        return;\n      }\n\n      this.clearInterval(this.updateInterval);\n      this.updateInterval = null;\n    }\n    /**\n     * Create the `Component`'s DOM element\n     *\n     * @return {Element}\n     *         The element that was created.\n     */\n    ;\n\n    _proto.createEl = function createEl() {\n      return _Slider.prototype.createEl.call(this, 'div', {\n        className: 'vjs-progress-holder'\n      }, {\n        'aria-label': this.localize('Progress Bar')\n      });\n    }\n    /**\n     * This function updates the play progress bar and accessibility\n     * attributes to whatever is passed in.\n     *\n     * @param {EventTarget~Event} [event]\n     *        The `timeupdate` or `ended` event that caused this to run.\n     *\n     * @listens Player#timeupdate\n     *\n     * @return {number}\n     *          The current percent at a number from 0-1\n     */\n    ;\n\n    _proto.update = function update(event) {\n      var _this3 = this;\n\n      // ignore updates while the tab is hidden\n      if (document.visibilityState === 'hidden') {\n        return;\n      }\n\n      var percent = _Slider.prototype.update.call(this);\n\n      this.requestNamedAnimationFrame('SeekBar#update', function () {\n        var currentTime = _this3.player_.ended() ? _this3.player_.duration() : _this3.getCurrentTime_();\n        var liveTracker = _this3.player_.liveTracker;\n\n        var duration = _this3.player_.duration();\n\n        if (liveTracker && liveTracker.isLive()) {\n          duration = _this3.player_.liveTracker.liveCurrentTime();\n        }\n\n        if (_this3.percent_ !== percent) {\n          // machine readable value of progress bar (percentage complete)\n          _this3.el_.setAttribute('aria-valuenow', (percent * 100).toFixed(2));\n\n          _this3.percent_ = percent;\n        }\n\n        if (_this3.currentTime_ !== currentTime || _this3.duration_ !== duration) {\n          // human readable value of progress bar (time complete)\n          _this3.el_.setAttribute('aria-valuetext', _this3.localize('progress bar timing: currentTime={1} duration={2}', [formatTime(currentTime, duration), formatTime(duration, duration)], '{1} of {2}'));\n\n          _this3.currentTime_ = currentTime;\n          _this3.duration_ = duration;\n        } // update the progress bar time tooltip with the current time\n\n\n        if (_this3.bar) {\n          _this3.bar.update(getBoundingClientRect(_this3.el()), _this3.getProgress());\n        }\n      });\n      return percent;\n    }\n    /**\n     * Prevent liveThreshold from causing seeks to seem like they\n     * are not happening from a user perspective.\n     *\n     * @param {number} ct\n     *        current time to seek to\n     */\n    ;\n\n    _proto.userSeek_ = function userSeek_(ct) {\n      if (this.player_.liveTracker && this.player_.liveTracker.isLive()) {\n        this.player_.liveTracker.nextSeekedFromUser();\n      }\n\n      this.player_.currentTime(ct);\n    }\n    /**\n     * Get the value of current time but allows for smooth scrubbing,\n     * when player can't keep up.\n     *\n     * @return {number}\n     *         The current time value to display\n     *\n     * @private\n     */\n    ;\n\n    _proto.getCurrentTime_ = function getCurrentTime_() {\n      return this.player_.scrubbing() ? this.player_.getCache().currentTime : this.player_.currentTime();\n    }\n    /**\n     * Get the percentage of media played so far.\n     *\n     * @return {number}\n     *         The percentage of media played so far (0 to 1).\n     */\n    ;\n\n    _proto.getPercent = function getPercent() {\n      var currentTime = this.getCurrentTime_();\n      var percent;\n      var liveTracker = this.player_.liveTracker;\n\n      if (liveTracker && liveTracker.isLive()) {\n        percent = (currentTime - liveTracker.seekableStart()) / liveTracker.liveWindow(); // prevent the percent from changing at the live edge\n\n        if (liveTracker.atLiveEdge()) {\n          percent = 1;\n        }\n      } else {\n        percent = currentTime / this.player_.duration();\n      }\n\n      return percent;\n    }\n    /**\n     * Handle mouse down on seek bar\n     *\n     * @param {EventTarget~Event} event\n     *        The `mousedown` event that caused this to run.\n     *\n     * @listens mousedown\n     */\n    ;\n\n    _proto.handleMouseDown = function handleMouseDown(event) {\n      if (!isSingleLeftClick(event)) {\n        return;\n      } // Stop event propagation to prevent double fire in progress-control.js\n\n\n      event.stopPropagation();\n      this.videoWasPlaying = !this.player_.paused();\n      this.player_.pause();\n\n      _Slider.prototype.handleMouseDown.call(this, event);\n    }\n    /**\n     * Handle mouse move on seek bar\n     *\n     * @param {EventTarget~Event} event\n     *        The `mousemove` event that caused this to run.\n     * @param {boolean} mouseDown this is a flag that should be set to true if `handleMouseMove` is called directly. It allows us to skip things that should not happen if coming from mouse down but should happen on regular mouse move handler. Defaults to false\n     *\n     * @listens mousemove\n     */\n    ;\n\n    _proto.handleMouseMove = function handleMouseMove(event, mouseDown) {\n      if (mouseDown === void 0) {\n        mouseDown = false;\n      }\n\n      if (!isSingleLeftClick(event)) {\n        return;\n      }\n\n      if (!mouseDown && !this.player_.scrubbing()) {\n        this.player_.scrubbing(true);\n      }\n\n      var newTime;\n      var distance = this.calculateDistance(event);\n      var liveTracker = this.player_.liveTracker;\n\n      if (!liveTracker || !liveTracker.isLive()) {\n        newTime = distance * this.player_.duration(); // Don't let video end while scrubbing.\n\n        if (newTime === this.player_.duration()) {\n          newTime = newTime - 0.1;\n        }\n      } else {\n        if (distance >= 0.99) {\n          liveTracker.seekToLiveEdge();\n          return;\n        }\n\n        var seekableStart = liveTracker.seekableStart();\n        var seekableEnd = liveTracker.liveCurrentTime();\n        newTime = seekableStart + distance * liveTracker.liveWindow(); // Don't let video end while scrubbing.\n\n        if (newTime >= seekableEnd) {\n          newTime = seekableEnd;\n        } // Compensate for precision differences so that currentTime is not less\n        // than seekable start\n\n\n        if (newTime <= seekableStart) {\n          newTime = seekableStart + 0.1;\n        } // On android seekableEnd can be Infinity sometimes,\n        // this will cause newTime to be Infinity, which is\n        // not a valid currentTime.\n\n\n        if (newTime === Infinity) {\n          return;\n        }\n      } // Set new time (tell player to seek to new time)\n\n\n      this.userSeek_(newTime);\n    };\n\n    _proto.enable = function enable() {\n      _Slider.prototype.enable.call(this);\n\n      var mouseTimeDisplay = this.getChild('mouseTimeDisplay');\n\n      if (!mouseTimeDisplay) {\n        return;\n      }\n\n      mouseTimeDisplay.show();\n    };\n\n    _proto.disable = function disable() {\n      _Slider.prototype.disable.call(this);\n\n      var mouseTimeDisplay = this.getChild('mouseTimeDisplay');\n\n      if (!mouseTimeDisplay) {\n        return;\n      }\n\n      mouseTimeDisplay.hide();\n    }\n    /**\n     * Handle mouse up on seek bar\n     *\n     * @param {EventTarget~Event} event\n     *        The `mouseup` event that caused this to run.\n     *\n     * @listens mouseup\n     */\n    ;\n\n    _proto.handleMouseUp = function handleMouseUp(event) {\n      _Slider.prototype.handleMouseUp.call(this, event); // Stop event propagation to prevent double fire in progress-control.js\n\n\n      if (event) {\n        event.stopPropagation();\n      }\n\n      this.player_.scrubbing(false);\n      /**\n       * Trigger timeupdate because we're done seeking and the time has changed.\n       * This is particularly useful for if the player is paused to time the time displays.\n       *\n       * @event Tech#timeupdate\n       * @type {EventTarget~Event}\n       */\n\n      this.player_.trigger({\n        type: 'timeupdate',\n        target: this,\n        manuallyTriggered: true\n      });\n\n      if (this.videoWasPlaying) {\n        silencePromise(this.player_.play());\n      } else {\n        // We're done seeking and the time has changed.\n        // If the player is paused, make sure we display the correct time on the seek bar.\n        this.update_();\n      }\n    }\n    /**\n     * Move more quickly fast forward for keyboard-only users\n     */\n    ;\n\n    _proto.stepForward = function stepForward() {\n      this.userSeek_(this.player_.currentTime() + STEP_SECONDS);\n    }\n    /**\n     * Move more quickly rewind for keyboard-only users\n     */\n    ;\n\n    _proto.stepBack = function stepBack() {\n      this.userSeek_(this.player_.currentTime() - STEP_SECONDS);\n    }\n    /**\n     * Toggles the playback state of the player\n     * This gets called when enter or space is used on the seekbar\n     *\n     * @param {EventTarget~Event} event\n     *        The `keydown` event that caused this function to be called\n     *\n     */\n    ;\n\n    _proto.handleAction = function handleAction(event) {\n      if (this.player_.paused()) {\n        this.player_.play();\n      } else {\n        this.player_.pause();\n      }\n    }\n    /**\n     * Called when this SeekBar has focus and a key gets pressed down.\n     * Supports the following keys:\n     *\n     *   Space or Enter key fire a click event\n     *   Home key moves to start of the timeline\n     *   End key moves to end of the timeline\n     *   Digit \"0\" through \"9\" keys move to 0%, 10% ... 80%, 90% of the timeline\n     *   PageDown key moves back a larger step than ArrowDown\n     *   PageUp key moves forward a large step\n     *\n     * @param {EventTarget~Event} event\n     *        The `keydown` event that caused this function to be called.\n     *\n     * @listens keydown\n     */\n    ;\n\n    _proto.handleKeyDown = function handleKeyDown(event) {\n      var liveTracker = this.player_.liveTracker;\n\n      if (keycode.isEventKey(event, 'Space') || keycode.isEventKey(event, 'Enter')) {\n        event.preventDefault();\n        event.stopPropagation();\n        this.handleAction(event);\n      } else if (keycode.isEventKey(event, 'Home')) {\n        event.preventDefault();\n        event.stopPropagation();\n        this.userSeek_(0);\n      } else if (keycode.isEventKey(event, 'End')) {\n        event.preventDefault();\n        event.stopPropagation();\n\n        if (liveTracker && liveTracker.isLive()) {\n          this.userSeek_(liveTracker.liveCurrentTime());\n        } else {\n          this.userSeek_(this.player_.duration());\n        }\n      } else if (/^[0-9]$/.test(keycode(event))) {\n        event.preventDefault();\n        event.stopPropagation();\n        var gotoFraction = (keycode.codes[keycode(event)] - keycode.codes['0']) * 10.0 / 100.0;\n\n        if (liveTracker && liveTracker.isLive()) {\n          this.userSeek_(liveTracker.seekableStart() + liveTracker.liveWindow() * gotoFraction);\n        } else {\n          this.userSeek_(this.player_.duration() * gotoFraction);\n        }\n      } else if (keycode.isEventKey(event, 'PgDn')) {\n        event.preventDefault();\n        event.stopPropagation();\n        this.userSeek_(this.player_.currentTime() - STEP_SECONDS * PAGE_KEY_MULTIPLIER);\n      } else if (keycode.isEventKey(event, 'PgUp')) {\n        event.preventDefault();\n        event.stopPropagation();\n        this.userSeek_(this.player_.currentTime() + STEP_SECONDS * PAGE_KEY_MULTIPLIER);\n      } else {\n        // Pass keydown handling up for unsupported keys\n        _Slider.prototype.handleKeyDown.call(this, event);\n      }\n    };\n\n    _proto.dispose = function dispose() {\n      this.disableInterval_();\n      this.off(this.player_, ['ended', 'durationchange', 'timeupdate'], this.update);\n\n      if (this.player_.liveTracker) {\n        this.off(this.player_.liveTracker, 'liveedgechange', this.update);\n      }\n\n      this.off(this.player_, ['playing'], this.enableIntervalHandler_);\n      this.off(this.player_, ['ended', 'pause', 'waiting'], this.disableIntervalHandler_); // we don't need to update the play progress if the document is hidden,\n      // also, this causes the CPU to spike and eventually crash the page on IE11.\n\n      if ('hidden' in document && 'visibilityState' in document) {\n        this.off(document, 'visibilitychange', this.toggleVisibility_);\n      }\n\n      _Slider.prototype.dispose.call(this);\n    };\n\n    return SeekBar;\n  }(Slider);\n  /**\n   * Default options for the `SeekBar`\n   *\n   * @type {Object}\n   * @private\n   */\n\n\n  SeekBar.prototype.options_ = {\n    children: ['loadProgressBar', 'playProgressBar'],\n    barName: 'playProgressBar'\n  }; // MouseTimeDisplay tooltips should not be added to a player on mobile devices\n\n  if (!IS_IOS && !IS_ANDROID) {\n    SeekBar.prototype.options_.children.splice(1, 0, 'mouseTimeDisplay');\n  }\n\n  Component$1.registerComponent('SeekBar', SeekBar);\n\n  /**\n   * The Progress Control component contains the seek bar, load progress,\n   * and play progress.\n   *\n   * @extends Component\n   */\n\n  var ProgressControl = /*#__PURE__*/function (_Component) {\n    inheritsLoose(ProgressControl, _Component);\n\n    /**\n     * Creates an instance of this class.\n     *\n     * @param {Player} player\n     *        The `Player` that this class should be attached to.\n     *\n     * @param {Object} [options]\n     *        The key/value store of player options.\n     */\n    function ProgressControl(player, options) {\n      var _this;\n\n      _this = _Component.call(this, player, options) || this;\n      _this.handleMouseMove = throttle(bind(assertThisInitialized(_this), _this.handleMouseMove), UPDATE_REFRESH_INTERVAL);\n      _this.throttledHandleMouseSeek = throttle(bind(assertThisInitialized(_this), _this.handleMouseSeek), UPDATE_REFRESH_INTERVAL);\n\n      _this.handleMouseUpHandler_ = function (e) {\n        return _this.handleMouseUp(e);\n      };\n\n      _this.handleMouseDownHandler_ = function (e) {\n        return _this.handleMouseDown(e);\n      };\n\n      _this.enable();\n\n      return _this;\n    }\n    /**\n     * Create the `Component`'s DOM element\n     *\n     * @return {Element}\n     *         The element that was created.\n     */\n\n\n    var _proto = ProgressControl.prototype;\n\n    _proto.createEl = function createEl() {\n      return _Component.prototype.createEl.call(this, 'div', {\n        className: 'vjs-progress-control vjs-control'\n      });\n    }\n    /**\n     * When the mouse moves over the `ProgressControl`, the pointer position\n     * gets passed down to the `MouseTimeDisplay` component.\n     *\n     * @param {EventTarget~Event} event\n     *        The `mousemove` event that caused this function to run.\n     *\n     * @listen mousemove\n     */\n    ;\n\n    _proto.handleMouseMove = function handleMouseMove(event) {\n      var seekBar = this.getChild('seekBar');\n\n      if (!seekBar) {\n        return;\n      }\n\n      var playProgressBar = seekBar.getChild('playProgressBar');\n      var mouseTimeDisplay = seekBar.getChild('mouseTimeDisplay');\n\n      if (!playProgressBar && !mouseTimeDisplay) {\n        return;\n      }\n\n      var seekBarEl = seekBar.el();\n      var seekBarRect = findPosition(seekBarEl);\n      var seekBarPoint = getPointerPosition(seekBarEl, event).x; // The default skin has a gap on either side of the `SeekBar`. This means\n      // that it's possible to trigger this behavior outside the boundaries of\n      // the `SeekBar`. This ensures we stay within it at all times.\n\n      seekBarPoint = clamp(seekBarPoint, 0, 1);\n\n      if (mouseTimeDisplay) {\n        mouseTimeDisplay.update(seekBarRect, seekBarPoint);\n      }\n\n      if (playProgressBar) {\n        playProgressBar.update(seekBarRect, seekBar.getProgress());\n      }\n    }\n    /**\n     * A throttled version of the {@link ProgressControl#handleMouseSeek} listener.\n     *\n     * @method ProgressControl#throttledHandleMouseSeek\n     * @param {EventTarget~Event} event\n     *        The `mousemove` event that caused this function to run.\n     *\n     * @listen mousemove\n     * @listen touchmove\n     */\n\n    /**\n     * Handle `mousemove` or `touchmove` events on the `ProgressControl`.\n     *\n     * @param {EventTarget~Event} event\n     *        `mousedown` or `touchstart` event that triggered this function\n     *\n     * @listens mousemove\n     * @listens touchmove\n     */\n    ;\n\n    _proto.handleMouseSeek = function handleMouseSeek(event) {\n      var seekBar = this.getChild('seekBar');\n\n      if (seekBar) {\n        seekBar.handleMouseMove(event);\n      }\n    }\n    /**\n     * Are controls are currently enabled for this progress control.\n     *\n     * @return {boolean}\n     *         true if controls are enabled, false otherwise\n     */\n    ;\n\n    _proto.enabled = function enabled() {\n      return this.enabled_;\n    }\n    /**\n     * Disable all controls on the progress control and its children\n     */\n    ;\n\n    _proto.disable = function disable() {\n      this.children().forEach(function (child) {\n        return child.disable && child.disable();\n      });\n\n      if (!this.enabled()) {\n        return;\n      }\n\n      this.off(['mousedown', 'touchstart'], this.handleMouseDownHandler_);\n      this.off(this.el_, 'mousemove', this.handleMouseMove);\n      this.removeListenersAddedOnMousedownAndTouchstart();\n      this.addClass('disabled');\n      this.enabled_ = false; // Restore normal playback state if controls are disabled while scrubbing\n\n      if (this.player_.scrubbing()) {\n        var seekBar = this.getChild('seekBar');\n        this.player_.scrubbing(false);\n\n        if (seekBar.videoWasPlaying) {\n          silencePromise(this.player_.play());\n        }\n      }\n    }\n    /**\n     * Enable all controls on the progress control and its children\n     */\n    ;\n\n    _proto.enable = function enable() {\n      this.children().forEach(function (child) {\n        return child.enable && child.enable();\n      });\n\n      if (this.enabled()) {\n        return;\n      }\n\n      this.on(['mousedown', 'touchstart'], this.handleMouseDownHandler_);\n      this.on(this.el_, 'mousemove', this.handleMouseMove);\n      this.removeClass('disabled');\n      this.enabled_ = true;\n    }\n    /**\n     * Cleanup listeners after the user finishes interacting with the progress controls\n     */\n    ;\n\n    _proto.removeListenersAddedOnMousedownAndTouchstart = function removeListenersAddedOnMousedownAndTouchstart() {\n      var doc = this.el_.ownerDocument;\n      this.off(doc, 'mousemove', this.throttledHandleMouseSeek);\n      this.off(doc, 'touchmove', this.throttledHandleMouseSeek);\n      this.off(doc, 'mouseup', this.handleMouseUpHandler_);\n      this.off(doc, 'touchend', this.handleMouseUpHandler_);\n    }\n    /**\n     * Handle `mousedown` or `touchstart` events on the `ProgressControl`.\n     *\n     * @param {EventTarget~Event} event\n     *        `mousedown` or `touchstart` event that triggered this function\n     *\n     * @listens mousedown\n     * @listens touchstart\n     */\n    ;\n\n    _proto.handleMouseDown = function handleMouseDown(event) {\n      var doc = this.el_.ownerDocument;\n      var seekBar = this.getChild('seekBar');\n\n      if (seekBar) {\n        seekBar.handleMouseDown(event);\n      }\n\n      this.on(doc, 'mousemove', this.throttledHandleMouseSeek);\n      this.on(doc, 'touchmove', this.throttledHandleMouseSeek);\n      this.on(doc, 'mouseup', this.handleMouseUpHandler_);\n      this.on(doc, 'touchend', this.handleMouseUpHandler_);\n    }\n    /**\n     * Handle `mouseup` or `touchend` events on the `ProgressControl`.\n     *\n     * @param {EventTarget~Event} event\n     *        `mouseup` or `touchend` event that triggered this function.\n     *\n     * @listens touchend\n     * @listens mouseup\n     */\n    ;\n\n    _proto.handleMouseUp = function handleMouseUp(event) {\n      var seekBar = this.getChild('seekBar');\n\n      if (seekBar) {\n        seekBar.handleMouseUp(event);\n      }\n\n      this.removeListenersAddedOnMousedownAndTouchstart();\n    };\n\n    return ProgressControl;\n  }(Component$1);\n  /**\n   * Default options for `ProgressControl`\n   *\n   * @type {Object}\n   * @private\n   */\n\n\n  ProgressControl.prototype.options_ = {\n    children: ['seekBar']\n  };\n  Component$1.registerComponent('ProgressControl', ProgressControl);\n\n  /**\n   * Toggle Picture-in-Picture mode\n   *\n   * @extends Button\n   */\n\n  var PictureInPictureToggle = /*#__PURE__*/function (_Button) {\n    inheritsLoose(PictureInPictureToggle, _Button);\n\n    /**\n     * Creates an instance of this class.\n     *\n     * @param {Player} player\n     *        The `Player` that this class should be attached to.\n     *\n     * @param {Object} [options]\n     *        The key/value store of player options.\n     *\n     * @listens Player#enterpictureinpicture\n     * @listens Player#leavepictureinpicture\n     */\n    function PictureInPictureToggle(player, options) {\n      var _this;\n\n      _this = _Button.call(this, player, options) || this;\n\n      _this.on(player, ['enterpictureinpicture', 'leavepictureinpicture'], function (e) {\n        return _this.handlePictureInPictureChange(e);\n      });\n\n      _this.on(player, ['disablepictureinpicturechanged', 'loadedmetadata'], function (e) {\n        return _this.handlePictureInPictureEnabledChange(e);\n      });\n\n      _this.on(player, ['loadedmetadata', 'audioonlymodechange', 'audiopostermodechange'], function () {\n        // This audio detection will not detect HLS or DASH audio-only streams because there was no reliable way to detect them at the time\n        var isSourceAudio = player.currentType().substring(0, 5) === 'audio';\n\n        if (isSourceAudio || player.audioPosterMode() || player.audioOnlyMode()) {\n          if (player.isInPictureInPicture()) {\n            player.exitPictureInPicture();\n          }\n\n          _this.hide();\n        } else {\n          _this.show();\n        }\n      }); // TODO: Deactivate button on player emptied event.\n\n\n      _this.disable();\n\n      return _this;\n    }\n    /**\n     * Builds the default DOM `className`.\n     *\n     * @return {string}\n     *         The DOM `className` for this object.\n     */\n\n\n    var _proto = PictureInPictureToggle.prototype;\n\n    _proto.buildCSSClass = function buildCSSClass() {\n      return \"vjs-picture-in-picture-control \" + _Button.prototype.buildCSSClass.call(this);\n    }\n    /**\n     * Enables or disables button based on document.pictureInPictureEnabled property value\n     * or on value returned by player.disablePictureInPicture() method.\n     */\n    ;\n\n    _proto.handlePictureInPictureEnabledChange = function handlePictureInPictureEnabledChange() {\n      if (document.pictureInPictureEnabled && this.player_.disablePictureInPicture() === false) {\n        this.enable();\n      } else {\n        this.disable();\n      }\n    }\n    /**\n     * Handles enterpictureinpicture and leavepictureinpicture on the player and change control text accordingly.\n     *\n     * @param {EventTarget~Event} [event]\n     *        The {@link Player#enterpictureinpicture} or {@link Player#leavepictureinpicture} event that caused this function to be\n     *        called.\n     *\n     * @listens Player#enterpictureinpicture\n     * @listens Player#leavepictureinpicture\n     */\n    ;\n\n    _proto.handlePictureInPictureChange = function handlePictureInPictureChange(event) {\n      if (this.player_.isInPictureInPicture()) {\n        this.controlText('Exit Picture-in-Picture');\n      } else {\n        this.controlText('Picture-in-Picture');\n      }\n\n      this.handlePictureInPictureEnabledChange();\n    }\n    /**\n     * This gets called when an `PictureInPictureToggle` is \"clicked\". See\n     * {@link ClickableComponent} for more detailed information on what a click can be.\n     *\n     * @param {EventTarget~Event} [event]\n     *        The `keydown`, `tap`, or `click` event that caused this function to be\n     *        called.\n     *\n     * @listens tap\n     * @listens click\n     */\n    ;\n\n    _proto.handleClick = function handleClick(event) {\n      if (!this.player_.isInPictureInPicture()) {\n        this.player_.requestPictureInPicture();\n      } else {\n        this.player_.exitPictureInPicture();\n      }\n    };\n\n    return PictureInPictureToggle;\n  }(Button);\n  /**\n   * The text that should display over the `PictureInPictureToggle`s controls. Added for localization.\n   *\n   * @type {string}\n   * @private\n   */\n\n\n  PictureInPictureToggle.prototype.controlText_ = 'Picture-in-Picture';\n  Component$1.registerComponent('PictureInPictureToggle', PictureInPictureToggle);\n\n  /**\n   * Toggle fullscreen video\n   *\n   * @extends Button\n   */\n\n  var FullscreenToggle = /*#__PURE__*/function (_Button) {\n    inheritsLoose(FullscreenToggle, _Button);\n\n    /**\n     * Creates an instance of this class.\n     *\n     * @param {Player} player\n     *        The `Player` that this class should be attached to.\n     *\n     * @param {Object} [options]\n     *        The key/value store of player options.\n     */\n    function FullscreenToggle(player, options) {\n      var _this;\n\n      _this = _Button.call(this, player, options) || this;\n\n      _this.on(player, 'fullscreenchange', function (e) {\n        return _this.handleFullscreenChange(e);\n      });\n\n      if (document[player.fsApi_.fullscreenEnabled] === false) {\n        _this.disable();\n      }\n\n      return _this;\n    }\n    /**\n     * Builds the default DOM `className`.\n     *\n     * @return {string}\n     *         The DOM `className` for this object.\n     */\n\n\n    var _proto = FullscreenToggle.prototype;\n\n    _proto.buildCSSClass = function buildCSSClass() {\n      return \"vjs-fullscreen-control \" + _Button.prototype.buildCSSClass.call(this);\n    }\n    /**\n     * Handles fullscreenchange on the player and change control text accordingly.\n     *\n     * @param {EventTarget~Event} [event]\n     *        The {@link Player#fullscreenchange} event that caused this function to be\n     *        called.\n     *\n     * @listens Player#fullscreenchange\n     */\n    ;\n\n    _proto.handleFullscreenChange = function handleFullscreenChange(event) {\n      if (this.player_.isFullscreen()) {\n        this.controlText('Non-Fullscreen');\n      } else {\n        this.controlText('Fullscreen');\n      }\n    }\n    /**\n     * This gets called when an `FullscreenToggle` is \"clicked\". See\n     * {@link ClickableComponent} for more detailed information on what a click can be.\n     *\n     * @param {EventTarget~Event} [event]\n     *        The `keydown`, `tap`, or `click` event that caused this function to be\n     *        called.\n     *\n     * @listens tap\n     * @listens click\n     */\n    ;\n\n    _proto.handleClick = function handleClick(event) {\n      if (!this.player_.isFullscreen()) {\n        this.player_.requestFullscreen();\n      } else {\n        this.player_.exitFullscreen();\n      }\n    };\n\n    return FullscreenToggle;\n  }(Button);\n  /**\n   * The text that should display over the `FullscreenToggle`s controls. Added for localization.\n   *\n   * @type {string}\n   * @private\n   */\n\n\n  FullscreenToggle.prototype.controlText_ = 'Fullscreen';\n  Component$1.registerComponent('FullscreenToggle', FullscreenToggle);\n\n  /**\n   * Check if volume control is supported and if it isn't hide the\n   * `Component` that was passed  using the `vjs-hidden` class.\n   *\n   * @param {Component} self\n   *        The component that should be hidden if volume is unsupported\n   *\n   * @param {Player} player\n   *        A reference to the player\n   *\n   * @private\n   */\n  var checkVolumeSupport = function checkVolumeSupport(self, player) {\n    // hide volume controls when they're not supported by the current tech\n    if (player.tech_ && !player.tech_.featuresVolumeControl) {\n      self.addClass('vjs-hidden');\n    }\n\n    self.on(player, 'loadstart', function () {\n      if (!player.tech_.featuresVolumeControl) {\n        self.addClass('vjs-hidden');\n      } else {\n        self.removeClass('vjs-hidden');\n      }\n    });\n  };\n\n  /**\n   * Shows volume level\n   *\n   * @extends Component\n   */\n\n  var VolumeLevel = /*#__PURE__*/function (_Component) {\n    inheritsLoose(VolumeLevel, _Component);\n\n    function VolumeLevel() {\n      return _Component.apply(this, arguments) || this;\n    }\n\n    var _proto = VolumeLevel.prototype;\n\n    /**\n     * Create the `Component`'s DOM element\n     *\n     * @return {Element}\n     *         The element that was created.\n     */\n    _proto.createEl = function createEl() {\n      var el = _Component.prototype.createEl.call(this, 'div', {\n        className: 'vjs-volume-level'\n      });\n\n      el.appendChild(_Component.prototype.createEl.call(this, 'span', {\n        className: 'vjs-control-text'\n      }));\n      return el;\n    };\n\n    return VolumeLevel;\n  }(Component$1);\n\n  Component$1.registerComponent('VolumeLevel', VolumeLevel);\n\n  /**\n   * Volume level tooltips display a volume above or side by side the volume bar.\n   *\n   * @extends Component\n   */\n\n  var VolumeLevelTooltip = /*#__PURE__*/function (_Component) {\n    inheritsLoose(VolumeLevelTooltip, _Component);\n\n    /**\n     * Creates an instance of this class.\n     *\n     * @param {Player} player\n     *        The {@link Player} that this class should be attached to.\n     *\n     * @param {Object} [options]\n     *        The key/value store of player options.\n     */\n    function VolumeLevelTooltip(player, options) {\n      var _this;\n\n      _this = _Component.call(this, player, options) || this;\n      _this.update = throttle(bind(assertThisInitialized(_this), _this.update), UPDATE_REFRESH_INTERVAL);\n      return _this;\n    }\n    /**\n     * Create the volume tooltip DOM element\n     *\n     * @return {Element}\n     *         The element that was created.\n     */\n\n\n    var _proto = VolumeLevelTooltip.prototype;\n\n    _proto.createEl = function createEl() {\n      return _Component.prototype.createEl.call(this, 'div', {\n        className: 'vjs-volume-tooltip'\n      }, {\n        'aria-hidden': 'true'\n      });\n    }\n    /**\n     * Updates the position of the tooltip relative to the `VolumeBar` and\n     * its content text.\n     *\n     * @param {Object} rangeBarRect\n     *        The `ClientRect` for the {@link VolumeBar} element.\n     *\n     * @param {number} rangeBarPoint\n     *        A number from 0 to 1, representing a horizontal/vertical reference point\n     *        from the left edge of the {@link VolumeBar}\n     *\n     * @param {boolean} vertical\n     *        Referees to the Volume control position\n     *        in the control bar{@link VolumeControl}\n     *\n     */\n    ;\n\n    _proto.update = function update(rangeBarRect, rangeBarPoint, vertical, content) {\n      if (!vertical) {\n        var tooltipRect = getBoundingClientRect(this.el_);\n        var playerRect = getBoundingClientRect(this.player_.el());\n        var volumeBarPointPx = rangeBarRect.width * rangeBarPoint;\n\n        if (!playerRect || !tooltipRect) {\n          return;\n        }\n\n        var spaceLeftOfPoint = rangeBarRect.left - playerRect.left + volumeBarPointPx;\n        var spaceRightOfPoint = rangeBarRect.width - volumeBarPointPx + (playerRect.right - rangeBarRect.right);\n        var pullTooltipBy = tooltipRect.width / 2;\n\n        if (spaceLeftOfPoint < pullTooltipBy) {\n          pullTooltipBy += pullTooltipBy - spaceLeftOfPoint;\n        } else if (spaceRightOfPoint < pullTooltipBy) {\n          pullTooltipBy = spaceRightOfPoint;\n        }\n\n        if (pullTooltipBy < 0) {\n          pullTooltipBy = 0;\n        } else if (pullTooltipBy > tooltipRect.width) {\n          pullTooltipBy = tooltipRect.width;\n        }\n\n        this.el_.style.right = \"-\" + pullTooltipBy + \"px\";\n      }\n\n      this.write(content + \"%\");\n    }\n    /**\n     * Write the volume to the tooltip DOM element.\n     *\n     * @param {string} content\n     *        The formatted volume for the tooltip.\n     */\n    ;\n\n    _proto.write = function write(content) {\n      textContent(this.el_, content);\n    }\n    /**\n     * Updates the position of the volume tooltip relative to the `VolumeBar`.\n     *\n     * @param {Object} rangeBarRect\n     *        The `ClientRect` for the {@link VolumeBar} element.\n     *\n     * @param {number} rangeBarPoint\n     *        A number from 0 to 1, representing a horizontal/vertical reference point\n     *        from the left edge of the {@link VolumeBar}\n     *\n     * @param {boolean} vertical\n     *        Referees to the Volume control position\n     *        in the control bar{@link VolumeControl}\n     *\n     * @param {number} volume\n     *        The volume level to update the tooltip to\n     *\n     * @param {Function} cb\n     *        A function that will be called during the request animation frame\n     *        for tooltips that need to do additional animations from the default\n     */\n    ;\n\n    _proto.updateVolume = function updateVolume(rangeBarRect, rangeBarPoint, vertical, volume, cb) {\n      var _this2 = this;\n\n      this.requestNamedAnimationFrame('VolumeLevelTooltip#updateVolume', function () {\n        _this2.update(rangeBarRect, rangeBarPoint, vertical, volume.toFixed(0));\n\n        if (cb) {\n          cb();\n        }\n      });\n    };\n\n    return VolumeLevelTooltip;\n  }(Component$1);\n\n  Component$1.registerComponent('VolumeLevelTooltip', VolumeLevelTooltip);\n\n  /**\n   * The {@link MouseVolumeLevelDisplay} component tracks mouse movement over the\n   * {@link VolumeControl}. It displays an indicator and a {@link VolumeLevelTooltip}\n   * indicating the volume level which is represented by a given point in the\n   * {@link VolumeBar}.\n   *\n   * @extends Component\n   */\n\n  var MouseVolumeLevelDisplay = /*#__PURE__*/function (_Component) {\n    inheritsLoose(MouseVolumeLevelDisplay, _Component);\n\n    /**\n     * Creates an instance of this class.\n     *\n     * @param {Player} player\n     *        The {@link Player} that this class should be attached to.\n     *\n     * @param {Object} [options]\n     *        The key/value store of player options.\n     */\n    function MouseVolumeLevelDisplay(player, options) {\n      var _this;\n\n      _this = _Component.call(this, player, options) || this;\n      _this.update = throttle(bind(assertThisInitialized(_this), _this.update), UPDATE_REFRESH_INTERVAL);\n      return _this;\n    }\n    /**\n     * Create the DOM element for this class.\n     *\n     * @return {Element}\n     *         The element that was created.\n     */\n\n\n    var _proto = MouseVolumeLevelDisplay.prototype;\n\n    _proto.createEl = function createEl() {\n      return _Component.prototype.createEl.call(this, 'div', {\n        className: 'vjs-mouse-display'\n      });\n    }\n    /**\n     * Enquires updates to its own DOM as well as the DOM of its\n     * {@link VolumeLevelTooltip} child.\n     *\n     * @param {Object} rangeBarRect\n     *        The `ClientRect` for the {@link VolumeBar} element.\n     *\n     * @param {number} rangeBarPoint\n     *        A number from 0 to 1, representing a horizontal/vertical reference point\n     *        from the left edge of the {@link VolumeBar}\n     *\n     * @param {boolean} vertical\n     *        Referees to the Volume control position\n     *        in the control bar{@link VolumeControl}\n     *\n     */\n    ;\n\n    _proto.update = function update(rangeBarRect, rangeBarPoint, vertical) {\n      var _this2 = this;\n\n      var volume = 100 * rangeBarPoint;\n      this.getChild('volumeLevelTooltip').updateVolume(rangeBarRect, rangeBarPoint, vertical, volume, function () {\n        if (vertical) {\n          _this2.el_.style.bottom = rangeBarRect.height * rangeBarPoint + \"px\";\n        } else {\n          _this2.el_.style.left = rangeBarRect.width * rangeBarPoint + \"px\";\n        }\n      });\n    };\n\n    return MouseVolumeLevelDisplay;\n  }(Component$1);\n  /**\n   * Default options for `MouseVolumeLevelDisplay`\n   *\n   * @type {Object}\n   * @private\n   */\n\n\n  MouseVolumeLevelDisplay.prototype.options_ = {\n    children: ['volumeLevelTooltip']\n  };\n  Component$1.registerComponent('MouseVolumeLevelDisplay', MouseVolumeLevelDisplay);\n\n  /**\n   * The bar that contains the volume level and can be clicked on to adjust the level\n   *\n   * @extends Slider\n   */\n\n  var VolumeBar = /*#__PURE__*/function (_Slider) {\n    inheritsLoose(VolumeBar, _Slider);\n\n    /**\n     * Creates an instance of this class.\n     *\n     * @param {Player} player\n     *        The `Player` that this class should be attached to.\n     *\n     * @param {Object} [options]\n     *        The key/value store of player options.\n     */\n    function VolumeBar(player, options) {\n      var _this;\n\n      _this = _Slider.call(this, player, options) || this;\n\n      _this.on('slideractive', function (e) {\n        return _this.updateLastVolume_(e);\n      });\n\n      _this.on(player, 'volumechange', function (e) {\n        return _this.updateARIAAttributes(e);\n      });\n\n      player.ready(function () {\n        return _this.updateARIAAttributes();\n      });\n      return _this;\n    }\n    /**\n     * Create the `Component`'s DOM element\n     *\n     * @return {Element}\n     *         The element that was created.\n     */\n\n\n    var _proto = VolumeBar.prototype;\n\n    _proto.createEl = function createEl() {\n      return _Slider.prototype.createEl.call(this, 'div', {\n        className: 'vjs-volume-bar vjs-slider-bar'\n      }, {\n        'aria-label': this.localize('Volume Level'),\n        'aria-live': 'polite'\n      });\n    }\n    /**\n     * Handle mouse down on volume bar\n     *\n     * @param {EventTarget~Event} event\n     *        The `mousedown` event that caused this to run.\n     *\n     * @listens mousedown\n     */\n    ;\n\n    _proto.handleMouseDown = function handleMouseDown(event) {\n      if (!isSingleLeftClick(event)) {\n        return;\n      }\n\n      _Slider.prototype.handleMouseDown.call(this, event);\n    }\n    /**\n     * Handle movement events on the {@link VolumeMenuButton}.\n     *\n     * @param {EventTarget~Event} event\n     *        The event that caused this function to run.\n     *\n     * @listens mousemove\n     */\n    ;\n\n    _proto.handleMouseMove = function handleMouseMove(event) {\n      var mouseVolumeLevelDisplay = this.getChild('mouseVolumeLevelDisplay');\n\n      if (mouseVolumeLevelDisplay) {\n        var volumeBarEl = this.el();\n        var volumeBarRect = getBoundingClientRect(volumeBarEl);\n        var vertical = this.vertical();\n        var volumeBarPoint = getPointerPosition(volumeBarEl, event);\n        volumeBarPoint = vertical ? volumeBarPoint.y : volumeBarPoint.x; // The default skin has a gap on either side of the `VolumeBar`. This means\n        // that it's possible to trigger this behavior outside the boundaries of\n        // the `VolumeBar`. This ensures we stay within it at all times.\n\n        volumeBarPoint = clamp(volumeBarPoint, 0, 1);\n        mouseVolumeLevelDisplay.update(volumeBarRect, volumeBarPoint, vertical);\n      }\n\n      if (!isSingleLeftClick(event)) {\n        return;\n      }\n\n      this.checkMuted();\n      this.player_.volume(this.calculateDistance(event));\n    }\n    /**\n     * If the player is muted unmute it.\n     */\n    ;\n\n    _proto.checkMuted = function checkMuted() {\n      if (this.player_.muted()) {\n        this.player_.muted(false);\n      }\n    }\n    /**\n     * Get percent of volume level\n     *\n     * @return {number}\n     *         Volume level percent as a decimal number.\n     */\n    ;\n\n    _proto.getPercent = function getPercent() {\n      if (this.player_.muted()) {\n        return 0;\n      }\n\n      return this.player_.volume();\n    }\n    /**\n     * Increase volume level for keyboard users\n     */\n    ;\n\n    _proto.stepForward = function stepForward() {\n      this.checkMuted();\n      this.player_.volume(this.player_.volume() + 0.1);\n    }\n    /**\n     * Decrease volume level for keyboard users\n     */\n    ;\n\n    _proto.stepBack = function stepBack() {\n      this.checkMuted();\n      this.player_.volume(this.player_.volume() - 0.1);\n    }\n    /**\n     * Update ARIA accessibility attributes\n     *\n     * @param {EventTarget~Event} [event]\n     *        The `volumechange` event that caused this function to run.\n     *\n     * @listens Player#volumechange\n     */\n    ;\n\n    _proto.updateARIAAttributes = function updateARIAAttributes(event) {\n      var ariaValue = this.player_.muted() ? 0 : this.volumeAsPercentage_();\n      this.el_.setAttribute('aria-valuenow', ariaValue);\n      this.el_.setAttribute('aria-valuetext', ariaValue + '%');\n    }\n    /**\n     * Returns the current value of the player volume as a percentage\n     *\n     * @private\n     */\n    ;\n\n    _proto.volumeAsPercentage_ = function volumeAsPercentage_() {\n      return Math.round(this.player_.volume() * 100);\n    }\n    /**\n     * When user starts dragging the VolumeBar, store the volume and listen for\n     * the end of the drag. When the drag ends, if the volume was set to zero,\n     * set lastVolume to the stored volume.\n     *\n     * @listens slideractive\n     * @private\n     */\n    ;\n\n    _proto.updateLastVolume_ = function updateLastVolume_() {\n      var _this2 = this;\n\n      var volumeBeforeDrag = this.player_.volume();\n      this.one('sliderinactive', function () {\n        if (_this2.player_.volume() === 0) {\n          _this2.player_.lastVolume_(volumeBeforeDrag);\n        }\n      });\n    };\n\n    return VolumeBar;\n  }(Slider);\n  /**\n   * Default options for the `VolumeBar`\n   *\n   * @type {Object}\n   * @private\n   */\n\n\n  VolumeBar.prototype.options_ = {\n    children: ['volumeLevel'],\n    barName: 'volumeLevel'\n  }; // MouseVolumeLevelDisplay tooltip should not be added to a player on mobile devices\n\n  if (!IS_IOS && !IS_ANDROID) {\n    VolumeBar.prototype.options_.children.splice(0, 0, 'mouseVolumeLevelDisplay');\n  }\n  /**\n   * Call the update event for this Slider when this event happens on the player.\n   *\n   * @type {string}\n   */\n\n\n  VolumeBar.prototype.playerEvent = 'volumechange';\n  Component$1.registerComponent('VolumeBar', VolumeBar);\n\n  /**\n   * The component for controlling the volume level\n   *\n   * @extends Component\n   */\n\n  var VolumeControl = /*#__PURE__*/function (_Component) {\n    inheritsLoose(VolumeControl, _Component);\n\n    /**\n     * Creates an instance of this class.\n     *\n     * @param {Player} player\n     *        The `Player` that this class should be attached to.\n     *\n     * @param {Object} [options={}]\n     *        The key/value store of player options.\n     */\n    function VolumeControl(player, options) {\n      var _this;\n\n      if (options === void 0) {\n        options = {};\n      }\n\n      options.vertical = options.vertical || false; // Pass the vertical option down to the VolumeBar if\n      // the VolumeBar is turned on.\n\n      if (typeof options.volumeBar === 'undefined' || isPlain(options.volumeBar)) {\n        options.volumeBar = options.volumeBar || {};\n        options.volumeBar.vertical = options.vertical;\n      }\n\n      _this = _Component.call(this, player, options) || this; // hide this control if volume support is missing\n\n      checkVolumeSupport(assertThisInitialized(_this), player);\n      _this.throttledHandleMouseMove = throttle(bind(assertThisInitialized(_this), _this.handleMouseMove), UPDATE_REFRESH_INTERVAL);\n\n      _this.handleMouseUpHandler_ = function (e) {\n        return _this.handleMouseUp(e);\n      };\n\n      _this.on('mousedown', function (e) {\n        return _this.handleMouseDown(e);\n      });\n\n      _this.on('touchstart', function (e) {\n        return _this.handleMouseDown(e);\n      });\n\n      _this.on('mousemove', function (e) {\n        return _this.handleMouseMove(e);\n      }); // while the slider is active (the mouse has been pressed down and\n      // is dragging) or in focus we do not want to hide the VolumeBar\n\n\n      _this.on(_this.volumeBar, ['focus', 'slideractive'], function () {\n        _this.volumeBar.addClass('vjs-slider-active');\n\n        _this.addClass('vjs-slider-active');\n\n        _this.trigger('slideractive');\n      });\n\n      _this.on(_this.volumeBar, ['blur', 'sliderinactive'], function () {\n        _this.volumeBar.removeClass('vjs-slider-active');\n\n        _this.removeClass('vjs-slider-active');\n\n        _this.trigger('sliderinactive');\n      });\n\n      return _this;\n    }\n    /**\n     * Create the `Component`'s DOM element\n     *\n     * @return {Element}\n     *         The element that was created.\n     */\n\n\n    var _proto = VolumeControl.prototype;\n\n    _proto.createEl = function createEl() {\n      var orientationClass = 'vjs-volume-horizontal';\n\n      if (this.options_.vertical) {\n        orientationClass = 'vjs-volume-vertical';\n      }\n\n      return _Component.prototype.createEl.call(this, 'div', {\n        className: \"vjs-volume-control vjs-control \" + orientationClass\n      });\n    }\n    /**\n     * Handle `mousedown` or `touchstart` events on the `VolumeControl`.\n     *\n     * @param {EventTarget~Event} event\n     *        `mousedown` or `touchstart` event that triggered this function\n     *\n     * @listens mousedown\n     * @listens touchstart\n     */\n    ;\n\n    _proto.handleMouseDown = function handleMouseDown(event) {\n      var doc = this.el_.ownerDocument;\n      this.on(doc, 'mousemove', this.throttledHandleMouseMove);\n      this.on(doc, 'touchmove', this.throttledHandleMouseMove);\n      this.on(doc, 'mouseup', this.handleMouseUpHandler_);\n      this.on(doc, 'touchend', this.handleMouseUpHandler_);\n    }\n    /**\n     * Handle `mouseup` or `touchend` events on the `VolumeControl`.\n     *\n     * @param {EventTarget~Event} event\n     *        `mouseup` or `touchend` event that triggered this function.\n     *\n     * @listens touchend\n     * @listens mouseup\n     */\n    ;\n\n    _proto.handleMouseUp = function handleMouseUp(event) {\n      var doc = this.el_.ownerDocument;\n      this.off(doc, 'mousemove', this.throttledHandleMouseMove);\n      this.off(doc, 'touchmove', this.throttledHandleMouseMove);\n      this.off(doc, 'mouseup', this.handleMouseUpHandler_);\n      this.off(doc, 'touchend', this.handleMouseUpHandler_);\n    }\n    /**\n     * Handle `mousedown` or `touchstart` events on the `VolumeControl`.\n     *\n     * @param {EventTarget~Event} event\n     *        `mousedown` or `touchstart` event that triggered this function\n     *\n     * @listens mousedown\n     * @listens touchstart\n     */\n    ;\n\n    _proto.handleMouseMove = function handleMouseMove(event) {\n      this.volumeBar.handleMouseMove(event);\n    };\n\n    return VolumeControl;\n  }(Component$1);\n  /**\n   * Default options for the `VolumeControl`\n   *\n   * @type {Object}\n   * @private\n   */\n\n\n  VolumeControl.prototype.options_ = {\n    children: ['volumeBar']\n  };\n  Component$1.registerComponent('VolumeControl', VolumeControl);\n\n  /**\n   * Check if muting volume is supported and if it isn't hide the mute toggle\n   * button.\n   *\n   * @param {Component} self\n   *        A reference to the mute toggle button\n   *\n   * @param {Player} player\n   *        A reference to the player\n   *\n   * @private\n   */\n  var checkMuteSupport = function checkMuteSupport(self, player) {\n    // hide mute toggle button if it's not supported by the current tech\n    if (player.tech_ && !player.tech_.featuresMuteControl) {\n      self.addClass('vjs-hidden');\n    }\n\n    self.on(player, 'loadstart', function () {\n      if (!player.tech_.featuresMuteControl) {\n        self.addClass('vjs-hidden');\n      } else {\n        self.removeClass('vjs-hidden');\n      }\n    });\n  };\n\n  /**\n   * A button component for muting the audio.\n   *\n   * @extends Button\n   */\n\n  var MuteToggle = /*#__PURE__*/function (_Button) {\n    inheritsLoose(MuteToggle, _Button);\n\n    /**\n     * Creates an instance of this class.\n     *\n     * @param {Player} player\n     *        The `Player` that this class should be attached to.\n     *\n     * @param {Object} [options]\n     *        The key/value store of player options.\n     */\n    function MuteToggle(player, options) {\n      var _this;\n\n      _this = _Button.call(this, player, options) || this; // hide this control if volume support is missing\n\n      checkMuteSupport(assertThisInitialized(_this), player);\n\n      _this.on(player, ['loadstart', 'volumechange'], function (e) {\n        return _this.update(e);\n      });\n\n      return _this;\n    }\n    /**\n     * Builds the default DOM `className`.\n     *\n     * @return {string}\n     *         The DOM `className` for this object.\n     */\n\n\n    var _proto = MuteToggle.prototype;\n\n    _proto.buildCSSClass = function buildCSSClass() {\n      return \"vjs-mute-control \" + _Button.prototype.buildCSSClass.call(this);\n    }\n    /**\n     * This gets called when an `MuteToggle` is \"clicked\". See\n     * {@link ClickableComponent} for more detailed information on what a click can be.\n     *\n     * @param {EventTarget~Event} [event]\n     *        The `keydown`, `tap`, or `click` event that caused this function to be\n     *        called.\n     *\n     * @listens tap\n     * @listens click\n     */\n    ;\n\n    _proto.handleClick = function handleClick(event) {\n      var vol = this.player_.volume();\n      var lastVolume = this.player_.lastVolume_();\n\n      if (vol === 0) {\n        var volumeToSet = lastVolume < 0.1 ? 0.1 : lastVolume;\n        this.player_.volume(volumeToSet);\n        this.player_.muted(false);\n      } else {\n        this.player_.muted(this.player_.muted() ? false : true);\n      }\n    }\n    /**\n     * Update the `MuteToggle` button based on the state of `volume` and `muted`\n     * on the player.\n     *\n     * @param {EventTarget~Event} [event]\n     *        The {@link Player#loadstart} event if this function was called\n     *        through an event.\n     *\n     * @listens Player#loadstart\n     * @listens Player#volumechange\n     */\n    ;\n\n    _proto.update = function update(event) {\n      this.updateIcon_();\n      this.updateControlText_();\n    }\n    /**\n     * Update the appearance of the `MuteToggle` icon.\n     *\n     * Possible states (given `level` variable below):\n     * - 0: crossed out\n     * - 1: zero bars of volume\n     * - 2: one bar of volume\n     * - 3: two bars of volume\n     *\n     * @private\n     */\n    ;\n\n    _proto.updateIcon_ = function updateIcon_() {\n      var vol = this.player_.volume();\n      var level = 3; // in iOS when a player is loaded with muted attribute\n      // and volume is changed with a native mute button\n      // we want to make sure muted state is updated\n\n      if (IS_IOS && this.player_.tech_ && this.player_.tech_.el_) {\n        this.player_.muted(this.player_.tech_.el_.muted);\n      }\n\n      if (vol === 0 || this.player_.muted()) {\n        level = 0;\n      } else if (vol < 0.33) {\n        level = 1;\n      } else if (vol < 0.67) {\n        level = 2;\n      } // TODO improve muted icon classes\n\n\n      for (var i = 0; i < 4; i++) {\n        removeClass(this.el_, \"vjs-vol-\" + i);\n      }\n\n      addClass(this.el_, \"vjs-vol-\" + level);\n    }\n    /**\n     * If `muted` has changed on the player, update the control text\n     * (`title` attribute on `vjs-mute-control` element and content of\n     * `vjs-control-text` element).\n     *\n     * @private\n     */\n    ;\n\n    _proto.updateControlText_ = function updateControlText_() {\n      var soundOff = this.player_.muted() || this.player_.volume() === 0;\n      var text = soundOff ? 'Unmute' : 'Mute';\n\n      if (this.controlText() !== text) {\n        this.controlText(text);\n      }\n    };\n\n    return MuteToggle;\n  }(Button);\n  /**\n   * The text that should display over the `MuteToggle`s controls. Added for localization.\n   *\n   * @type {string}\n   * @private\n   */\n\n\n  MuteToggle.prototype.controlText_ = 'Mute';\n  Component$1.registerComponent('MuteToggle', MuteToggle);\n\n  /**\n   * A Component to contain the MuteToggle and VolumeControl so that\n   * they can work together.\n   *\n   * @extends Component\n   */\n\n  var VolumePanel = /*#__PURE__*/function (_Component) {\n    inheritsLoose(VolumePanel, _Component);\n\n    /**\n     * Creates an instance of this class.\n     *\n     * @param {Player} player\n     *        The `Player` that this class should be attached to.\n     *\n     * @param {Object} [options={}]\n     *        The key/value store of player options.\n     */\n    function VolumePanel(player, options) {\n      var _this;\n\n      if (options === void 0) {\n        options = {};\n      }\n\n      if (typeof options.inline !== 'undefined') {\n        options.inline = options.inline;\n      } else {\n        options.inline = true;\n      } // pass the inline option down to the VolumeControl as vertical if\n      // the VolumeControl is on.\n\n\n      if (typeof options.volumeControl === 'undefined' || isPlain(options.volumeControl)) {\n        options.volumeControl = options.volumeControl || {};\n        options.volumeControl.vertical = !options.inline;\n      }\n\n      _this = _Component.call(this, player, options) || this; // this handler is used by mouse handler methods below\n\n      _this.handleKeyPressHandler_ = function (e) {\n        return _this.handleKeyPress(e);\n      };\n\n      _this.on(player, ['loadstart'], function (e) {\n        return _this.volumePanelState_(e);\n      });\n\n      _this.on(_this.muteToggle, 'keyup', function (e) {\n        return _this.handleKeyPress(e);\n      });\n\n      _this.on(_this.volumeControl, 'keyup', function (e) {\n        return _this.handleVolumeControlKeyUp(e);\n      });\n\n      _this.on('keydown', function (e) {\n        return _this.handleKeyPress(e);\n      });\n\n      _this.on('mouseover', function (e) {\n        return _this.handleMouseOver(e);\n      });\n\n      _this.on('mouseout', function (e) {\n        return _this.handleMouseOut(e);\n      }); // while the slider is active (the mouse has been pressed down and\n      // is dragging) we do not want to hide the VolumeBar\n\n\n      _this.on(_this.volumeControl, ['slideractive'], _this.sliderActive_);\n\n      _this.on(_this.volumeControl, ['sliderinactive'], _this.sliderInactive_);\n\n      return _this;\n    }\n    /**\n     * Add vjs-slider-active class to the VolumePanel\n     *\n     * @listens VolumeControl#slideractive\n     * @private\n     */\n\n\n    var _proto = VolumePanel.prototype;\n\n    _proto.sliderActive_ = function sliderActive_() {\n      this.addClass('vjs-slider-active');\n    }\n    /**\n     * Removes vjs-slider-active class to the VolumePanel\n     *\n     * @listens VolumeControl#sliderinactive\n     * @private\n     */\n    ;\n\n    _proto.sliderInactive_ = function sliderInactive_() {\n      this.removeClass('vjs-slider-active');\n    }\n    /**\n     * Adds vjs-hidden or vjs-mute-toggle-only to the VolumePanel\n     * depending on MuteToggle and VolumeControl state\n     *\n     * @listens Player#loadstart\n     * @private\n     */\n    ;\n\n    _proto.volumePanelState_ = function volumePanelState_() {\n      // hide volume panel if neither volume control or mute toggle\n      // are displayed\n      if (this.volumeControl.hasClass('vjs-hidden') && this.muteToggle.hasClass('vjs-hidden')) {\n        this.addClass('vjs-hidden');\n      } // if only mute toggle is visible we don't want\n      // volume panel expanding when hovered or active\n\n\n      if (this.volumeControl.hasClass('vjs-hidden') && !this.muteToggle.hasClass('vjs-hidden')) {\n        this.addClass('vjs-mute-toggle-only');\n      }\n    }\n    /**\n     * Create the `Component`'s DOM element\n     *\n     * @return {Element}\n     *         The element that was created.\n     */\n    ;\n\n    _proto.createEl = function createEl() {\n      var orientationClass = 'vjs-volume-panel-horizontal';\n\n      if (!this.options_.inline) {\n        orientationClass = 'vjs-volume-panel-vertical';\n      }\n\n      return _Component.prototype.createEl.call(this, 'div', {\n        className: \"vjs-volume-panel vjs-control \" + orientationClass\n      });\n    }\n    /**\n     * Dispose of the `volume-panel` and all child components.\n     */\n    ;\n\n    _proto.dispose = function dispose() {\n      this.handleMouseOut();\n\n      _Component.prototype.dispose.call(this);\n    }\n    /**\n     * Handles `keyup` events on the `VolumeControl`, looking for ESC, which closes\n     * the volume panel and sets focus on `MuteToggle`.\n     *\n     * @param {EventTarget~Event} event\n     *        The `keyup` event that caused this function to be called.\n     *\n     * @listens keyup\n     */\n    ;\n\n    _proto.handleVolumeControlKeyUp = function handleVolumeControlKeyUp(event) {\n      if (keycode.isEventKey(event, 'Esc')) {\n        this.muteToggle.focus();\n      }\n    }\n    /**\n     * This gets called when a `VolumePanel` gains hover via a `mouseover` event.\n     * Turns on listening for `mouseover` event. When they happen it\n     * calls `this.handleMouseOver`.\n     *\n     * @param {EventTarget~Event} event\n     *        The `mouseover` event that caused this function to be called.\n     *\n     * @listens mouseover\n     */\n    ;\n\n    _proto.handleMouseOver = function handleMouseOver(event) {\n      this.addClass('vjs-hover');\n      on(document, 'keyup', this.handleKeyPressHandler_);\n    }\n    /**\n     * This gets called when a `VolumePanel` gains hover via a `mouseout` event.\n     * Turns on listening for `mouseout` event. When they happen it\n     * calls `this.handleMouseOut`.\n     *\n     * @param {EventTarget~Event} event\n     *        The `mouseout` event that caused this function to be called.\n     *\n     * @listens mouseout\n     */\n    ;\n\n    _proto.handleMouseOut = function handleMouseOut(event) {\n      this.removeClass('vjs-hover');\n      off(document, 'keyup', this.handleKeyPressHandler_);\n    }\n    /**\n     * Handles `keyup` event on the document or `keydown` event on the `VolumePanel`,\n     * looking for ESC, which hides the `VolumeControl`.\n     *\n     * @param {EventTarget~Event} event\n     *        The keypress that triggered this event.\n     *\n     * @listens keydown | keyup\n     */\n    ;\n\n    _proto.handleKeyPress = function handleKeyPress(event) {\n      if (keycode.isEventKey(event, 'Esc')) {\n        this.handleMouseOut();\n      }\n    };\n\n    return VolumePanel;\n  }(Component$1);\n  /**\n   * Default options for the `VolumeControl`\n   *\n   * @type {Object}\n   * @private\n   */\n\n\n  VolumePanel.prototype.options_ = {\n    children: ['muteToggle', 'volumeControl']\n  };\n  Component$1.registerComponent('VolumePanel', VolumePanel);\n\n  /**\n   * The Menu component is used to build popup menus, including subtitle and\n   * captions selection menus.\n   *\n   * @extends Component\n   */\n\n  var Menu = /*#__PURE__*/function (_Component) {\n    inheritsLoose(Menu, _Component);\n\n    /**\n     * Create an instance of this class.\n     *\n     * @param {Player} player\n     *        the player that this component should attach to\n     *\n     * @param {Object} [options]\n     *        Object of option names and values\n     *\n     */\n    function Menu(player, options) {\n      var _this;\n\n      _this = _Component.call(this, player, options) || this;\n\n      if (options) {\n        _this.menuButton_ = options.menuButton;\n      }\n\n      _this.focusedChild_ = -1;\n\n      _this.on('keydown', function (e) {\n        return _this.handleKeyDown(e);\n      }); // All the menu item instances share the same blur handler provided by the menu container.\n\n\n      _this.boundHandleBlur_ = function (e) {\n        return _this.handleBlur(e);\n      };\n\n      _this.boundHandleTapClick_ = function (e) {\n        return _this.handleTapClick(e);\n      };\n\n      return _this;\n    }\n    /**\n     * Add event listeners to the {@link MenuItem}.\n     *\n     * @param {Object} component\n     *        The instance of the `MenuItem` to add listeners to.\n     *\n     */\n\n\n    var _proto = Menu.prototype;\n\n    _proto.addEventListenerForItem = function addEventListenerForItem(component) {\n      if (!(component instanceof Component$1)) {\n        return;\n      }\n\n      this.on(component, 'blur', this.boundHandleBlur_);\n      this.on(component, ['tap', 'click'], this.boundHandleTapClick_);\n    }\n    /**\n     * Remove event listeners from the {@link MenuItem}.\n     *\n     * @param {Object} component\n     *        The instance of the `MenuItem` to remove listeners.\n     *\n     */\n    ;\n\n    _proto.removeEventListenerForItem = function removeEventListenerForItem(component) {\n      if (!(component instanceof Component$1)) {\n        return;\n      }\n\n      this.off(component, 'blur', this.boundHandleBlur_);\n      this.off(component, ['tap', 'click'], this.boundHandleTapClick_);\n    }\n    /**\n     * This method will be called indirectly when the component has been added\n     * before the component adds to the new menu instance by `addItem`.\n     * In this case, the original menu instance will remove the component\n     * by calling `removeChild`.\n     *\n     * @param {Object} component\n     *        The instance of the `MenuItem`\n     */\n    ;\n\n    _proto.removeChild = function removeChild(component) {\n      if (typeof component === 'string') {\n        component = this.getChild(component);\n      }\n\n      this.removeEventListenerForItem(component);\n\n      _Component.prototype.removeChild.call(this, component);\n    }\n    /**\n     * Add a {@link MenuItem} to the menu.\n     *\n     * @param {Object|string} component\n     *        The name or instance of the `MenuItem` to add.\n     *\n     */\n    ;\n\n    _proto.addItem = function addItem(component) {\n      var childComponent = this.addChild(component);\n\n      if (childComponent) {\n        this.addEventListenerForItem(childComponent);\n      }\n    }\n    /**\n     * Create the `Menu`s DOM element.\n     *\n     * @return {Element}\n     *         the element that was created\n     */\n    ;\n\n    _proto.createEl = function createEl$1() {\n      var contentElType = this.options_.contentElType || 'ul';\n      this.contentEl_ = createEl(contentElType, {\n        className: 'vjs-menu-content'\n      });\n      this.contentEl_.setAttribute('role', 'menu');\n\n      var el = _Component.prototype.createEl.call(this, 'div', {\n        append: this.contentEl_,\n        className: 'vjs-menu'\n      });\n\n      el.appendChild(this.contentEl_); // Prevent clicks from bubbling up. Needed for Menu Buttons,\n      // where a click on the parent is significant\n\n      on(el, 'click', function (event) {\n        event.preventDefault();\n        event.stopImmediatePropagation();\n      });\n      return el;\n    };\n\n    _proto.dispose = function dispose() {\n      this.contentEl_ = null;\n      this.boundHandleBlur_ = null;\n      this.boundHandleTapClick_ = null;\n\n      _Component.prototype.dispose.call(this);\n    }\n    /**\n     * Called when a `MenuItem` loses focus.\n     *\n     * @param {EventTarget~Event} event\n     *        The `blur` event that caused this function to be called.\n     *\n     * @listens blur\n     */\n    ;\n\n    _proto.handleBlur = function handleBlur(event) {\n      var relatedTarget = event.relatedTarget || document.activeElement; // Close menu popup when a user clicks outside the menu\n\n      if (!this.children().some(function (element) {\n        return element.el() === relatedTarget;\n      })) {\n        var btn = this.menuButton_;\n\n        if (btn && btn.buttonPressed_ && relatedTarget !== btn.el().firstChild) {\n          btn.unpressButton();\n        }\n      }\n    }\n    /**\n     * Called when a `MenuItem` gets clicked or tapped.\n     *\n     * @param {EventTarget~Event} event\n     *        The `click` or `tap` event that caused this function to be called.\n     *\n     * @listens click,tap\n     */\n    ;\n\n    _proto.handleTapClick = function handleTapClick(event) {\n      // Unpress the associated MenuButton, and move focus back to it\n      if (this.menuButton_) {\n        this.menuButton_.unpressButton();\n        var childComponents = this.children();\n\n        if (!Array.isArray(childComponents)) {\n          return;\n        }\n\n        var foundComponent = childComponents.filter(function (component) {\n          return component.el() === event.target;\n        })[0];\n\n        if (!foundComponent) {\n          return;\n        } // don't focus menu button if item is a caption settings item\n        // because focus will move elsewhere\n\n\n        if (foundComponent.name() !== 'CaptionSettingsMenuItem') {\n          this.menuButton_.focus();\n        }\n      }\n    }\n    /**\n     * Handle a `keydown` event on this menu. This listener is added in the constructor.\n     *\n     * @param {EventTarget~Event} event\n     *        A `keydown` event that happened on the menu.\n     *\n     * @listens keydown\n     */\n    ;\n\n    _proto.handleKeyDown = function handleKeyDown(event) {\n      // Left and Down Arrows\n      if (keycode.isEventKey(event, 'Left') || keycode.isEventKey(event, 'Down')) {\n        event.preventDefault();\n        event.stopPropagation();\n        this.stepForward(); // Up and Right Arrows\n      } else if (keycode.isEventKey(event, 'Right') || keycode.isEventKey(event, 'Up')) {\n        event.preventDefault();\n        event.stopPropagation();\n        this.stepBack();\n      }\n    }\n    /**\n     * Move to next (lower) menu item for keyboard users.\n     */\n    ;\n\n    _proto.stepForward = function stepForward() {\n      var stepChild = 0;\n\n      if (this.focusedChild_ !== undefined) {\n        stepChild = this.focusedChild_ + 1;\n      }\n\n      this.focus(stepChild);\n    }\n    /**\n     * Move to previous (higher) menu item for keyboard users.\n     */\n    ;\n\n    _proto.stepBack = function stepBack() {\n      var stepChild = 0;\n\n      if (this.focusedChild_ !== undefined) {\n        stepChild = this.focusedChild_ - 1;\n      }\n\n      this.focus(stepChild);\n    }\n    /**\n     * Set focus on a {@link MenuItem} in the `Menu`.\n     *\n     * @param {Object|string} [item=0]\n     *        Index of child item set focus on.\n     */\n    ;\n\n    _proto.focus = function focus(item) {\n      if (item === void 0) {\n        item = 0;\n      }\n\n      var children = this.children().slice();\n      var haveTitle = children.length && children[0].hasClass('vjs-menu-title');\n\n      if (haveTitle) {\n        children.shift();\n      }\n\n      if (children.length > 0) {\n        if (item < 0) {\n          item = 0;\n        } else if (item >= children.length) {\n          item = children.length - 1;\n        }\n\n        this.focusedChild_ = item;\n        children[item].el_.focus();\n      }\n    };\n\n    return Menu;\n  }(Component$1);\n\n  Component$1.registerComponent('Menu', Menu);\n\n  /**\n   * A `MenuButton` class for any popup {@link Menu}.\n   *\n   * @extends Component\n   */\n\n  var MenuButton = /*#__PURE__*/function (_Component) {\n    inheritsLoose(MenuButton, _Component);\n\n    /**\n     * Creates an instance of this class.\n     *\n     * @param {Player} player\n     *        The `Player` that this class should be attached to.\n     *\n     * @param {Object} [options={}]\n     *        The key/value store of player options.\n     */\n    function MenuButton(player, options) {\n      var _this;\n\n      if (options === void 0) {\n        options = {};\n      }\n\n      _this = _Component.call(this, player, options) || this;\n      _this.menuButton_ = new Button(player, options);\n\n      _this.menuButton_.controlText(_this.controlText_);\n\n      _this.menuButton_.el_.setAttribute('aria-haspopup', 'true'); // Add buildCSSClass values to the button, not the wrapper\n\n\n      var buttonClass = Button.prototype.buildCSSClass();\n      _this.menuButton_.el_.className = _this.buildCSSClass() + ' ' + buttonClass;\n\n      _this.menuButton_.removeClass('vjs-control');\n\n      _this.addChild(_this.menuButton_);\n\n      _this.update();\n\n      _this.enabled_ = true;\n\n      var handleClick = function handleClick(e) {\n        return _this.handleClick(e);\n      };\n\n      _this.handleMenuKeyUp_ = function (e) {\n        return _this.handleMenuKeyUp(e);\n      };\n\n      _this.on(_this.menuButton_, 'tap', handleClick);\n\n      _this.on(_this.menuButton_, 'click', handleClick);\n\n      _this.on(_this.menuButton_, 'keydown', function (e) {\n        return _this.handleKeyDown(e);\n      });\n\n      _this.on(_this.menuButton_, 'mouseenter', function () {\n        _this.addClass('vjs-hover');\n\n        _this.menu.show();\n\n        on(document, 'keyup', _this.handleMenuKeyUp_);\n      });\n\n      _this.on('mouseleave', function (e) {\n        return _this.handleMouseLeave(e);\n      });\n\n      _this.on('keydown', function (e) {\n        return _this.handleSubmenuKeyDown(e);\n      });\n\n      return _this;\n    }\n    /**\n     * Update the menu based on the current state of its items.\n     */\n\n\n    var _proto = MenuButton.prototype;\n\n    _proto.update = function update() {\n      var menu = this.createMenu();\n\n      if (this.menu) {\n        this.menu.dispose();\n        this.removeChild(this.menu);\n      }\n\n      this.menu = menu;\n      this.addChild(menu);\n      /**\n       * Track the state of the menu button\n       *\n       * @type {Boolean}\n       * @private\n       */\n\n      this.buttonPressed_ = false;\n      this.menuButton_.el_.setAttribute('aria-expanded', 'false');\n\n      if (this.items && this.items.length <= this.hideThreshold_) {\n        this.hide();\n        this.menu.contentEl_.removeAttribute('role');\n      } else {\n        this.show();\n        this.menu.contentEl_.setAttribute('role', 'menu');\n      }\n    }\n    /**\n     * Create the menu and add all items to it.\n     *\n     * @return {Menu}\n     *         The constructed menu\n     */\n    ;\n\n    _proto.createMenu = function createMenu() {\n      var menu = new Menu(this.player_, {\n        menuButton: this\n      });\n      /**\n       * Hide the menu if the number of items is less than or equal to this threshold. This defaults\n       * to 0 and whenever we add items which can be hidden to the menu we'll increment it. We list\n       * it here because every time we run `createMenu` we need to reset the value.\n       *\n       * @protected\n       * @type {Number}\n       */\n\n      this.hideThreshold_ = 0; // Add a title list item to the top\n\n      if (this.options_.title) {\n        var titleEl = createEl('li', {\n          className: 'vjs-menu-title',\n          textContent: toTitleCase$1(this.options_.title),\n          tabIndex: -1\n        });\n        var titleComponent = new Component$1(this.player_, {\n          el: titleEl\n        });\n        menu.addItem(titleComponent);\n      }\n\n      this.items = this.createItems();\n\n      if (this.items) {\n        // Add menu items to the menu\n        for (var i = 0; i < this.items.length; i++) {\n          menu.addItem(this.items[i]);\n        }\n      }\n\n      return menu;\n    }\n    /**\n     * Create the list of menu items. Specific to each subclass.\n     *\n     * @abstract\n     */\n    ;\n\n    _proto.createItems = function createItems() {}\n    /**\n     * Create the `MenuButtons`s DOM element.\n     *\n     * @return {Element}\n     *         The element that gets created.\n     */\n    ;\n\n    _proto.createEl = function createEl() {\n      return _Component.prototype.createEl.call(this, 'div', {\n        className: this.buildWrapperCSSClass()\n      }, {});\n    }\n    /**\n     * Allow sub components to stack CSS class names for the wrapper element\n     *\n     * @return {string}\n     *         The constructed wrapper DOM `className`\n     */\n    ;\n\n    _proto.buildWrapperCSSClass = function buildWrapperCSSClass() {\n      var menuButtonClass = 'vjs-menu-button'; // If the inline option is passed, we want to use different styles altogether.\n\n      if (this.options_.inline === true) {\n        menuButtonClass += '-inline';\n      } else {\n        menuButtonClass += '-popup';\n      } // TODO: Fix the CSS so that this isn't necessary\n\n\n      var buttonClass = Button.prototype.buildCSSClass();\n      return \"vjs-menu-button \" + menuButtonClass + \" \" + buttonClass + \" \" + _Component.prototype.buildCSSClass.call(this);\n    }\n    /**\n     * Builds the default DOM `className`.\n     *\n     * @return {string}\n     *         The DOM `className` for this object.\n     */\n    ;\n\n    _proto.buildCSSClass = function buildCSSClass() {\n      var menuButtonClass = 'vjs-menu-button'; // If the inline option is passed, we want to use different styles altogether.\n\n      if (this.options_.inline === true) {\n        menuButtonClass += '-inline';\n      } else {\n        menuButtonClass += '-popup';\n      }\n\n      return \"vjs-menu-button \" + menuButtonClass + \" \" + _Component.prototype.buildCSSClass.call(this);\n    }\n    /**\n     * Get or set the localized control text that will be used for accessibility.\n     *\n     * > NOTE: This will come from the internal `menuButton_` element.\n     *\n     * @param {string} [text]\n     *        Control text for element.\n     *\n     * @param {Element} [el=this.menuButton_.el()]\n     *        Element to set the title on.\n     *\n     * @return {string}\n     *         - The control text when getting\n     */\n    ;\n\n    _proto.controlText = function controlText(text, el) {\n      if (el === void 0) {\n        el = this.menuButton_.el();\n      }\n\n      return this.menuButton_.controlText(text, el);\n    }\n    /**\n     * Dispose of the `menu-button` and all child components.\n     */\n    ;\n\n    _proto.dispose = function dispose() {\n      this.handleMouseLeave();\n\n      _Component.prototype.dispose.call(this);\n    }\n    /**\n     * Handle a click on a `MenuButton`.\n     * See {@link ClickableComponent#handleClick} for instances where this is called.\n     *\n     * @param {EventTarget~Event} event\n     *        The `keydown`, `tap`, or `click` event that caused this function to be\n     *        called.\n     *\n     * @listens tap\n     * @listens click\n     */\n    ;\n\n    _proto.handleClick = function handleClick(event) {\n      if (this.buttonPressed_) {\n        this.unpressButton();\n      } else {\n        this.pressButton();\n      }\n    }\n    /**\n     * Handle `mouseleave` for `MenuButton`.\n     *\n     * @param {EventTarget~Event} event\n     *        The `mouseleave` event that caused this function to be called.\n     *\n     * @listens mouseleave\n     */\n    ;\n\n    _proto.handleMouseLeave = function handleMouseLeave(event) {\n      this.removeClass('vjs-hover');\n      off(document, 'keyup', this.handleMenuKeyUp_);\n    }\n    /**\n     * Set the focus to the actual button, not to this element\n     */\n    ;\n\n    _proto.focus = function focus() {\n      this.menuButton_.focus();\n    }\n    /**\n     * Remove the focus from the actual button, not this element\n     */\n    ;\n\n    _proto.blur = function blur() {\n      this.menuButton_.blur();\n    }\n    /**\n     * Handle tab, escape, down arrow, and up arrow keys for `MenuButton`. See\n     * {@link ClickableComponent#handleKeyDown} for instances where this is called.\n     *\n     * @param {EventTarget~Event} event\n     *        The `keydown` event that caused this function to be called.\n     *\n     * @listens keydown\n     */\n    ;\n\n    _proto.handleKeyDown = function handleKeyDown(event) {\n      // Escape or Tab unpress the 'button'\n      if (keycode.isEventKey(event, 'Esc') || keycode.isEventKey(event, 'Tab')) {\n        if (this.buttonPressed_) {\n          this.unpressButton();\n        } // Don't preventDefault for Tab key - we still want to lose focus\n\n\n        if (!keycode.isEventKey(event, 'Tab')) {\n          event.preventDefault(); // Set focus back to the menu button's button\n\n          this.menuButton_.focus();\n        } // Up Arrow or Down Arrow also 'press' the button to open the menu\n\n      } else if (keycode.isEventKey(event, 'Up') || keycode.isEventKey(event, 'Down')) {\n        if (!this.buttonPressed_) {\n          event.preventDefault();\n          this.pressButton();\n        }\n      }\n    }\n    /**\n     * Handle a `keyup` event on a `MenuButton`. The listener for this is added in\n     * the constructor.\n     *\n     * @param {EventTarget~Event} event\n     *        Key press event\n     *\n     * @listens keyup\n     */\n    ;\n\n    _proto.handleMenuKeyUp = function handleMenuKeyUp(event) {\n      // Escape hides popup menu\n      if (keycode.isEventKey(event, 'Esc') || keycode.isEventKey(event, 'Tab')) {\n        this.removeClass('vjs-hover');\n      }\n    }\n    /**\n     * This method name now delegates to `handleSubmenuKeyDown`. This means\n     * anyone calling `handleSubmenuKeyPress` will not see their method calls\n     * stop working.\n     *\n     * @param {EventTarget~Event} event\n     *        The event that caused this function to be called.\n     */\n    ;\n\n    _proto.handleSubmenuKeyPress = function handleSubmenuKeyPress(event) {\n      this.handleSubmenuKeyDown(event);\n    }\n    /**\n     * Handle a `keydown` event on a sub-menu. The listener for this is added in\n     * the constructor.\n     *\n     * @param {EventTarget~Event} event\n     *        Key press event\n     *\n     * @listens keydown\n     */\n    ;\n\n    _proto.handleSubmenuKeyDown = function handleSubmenuKeyDown(event) {\n      // Escape or Tab unpress the 'button'\n      if (keycode.isEventKey(event, 'Esc') || keycode.isEventKey(event, 'Tab')) {\n        if (this.buttonPressed_) {\n          this.unpressButton();\n        } // Don't preventDefault for Tab key - we still want to lose focus\n\n\n        if (!keycode.isEventKey(event, 'Tab')) {\n          event.preventDefault(); // Set focus back to the menu button's button\n\n          this.menuButton_.focus();\n        }\n      }\n    }\n    /**\n     * Put the current `MenuButton` into a pressed state.\n     */\n    ;\n\n    _proto.pressButton = function pressButton() {\n      if (this.enabled_) {\n        this.buttonPressed_ = true;\n        this.menu.show();\n        this.menu.lockShowing();\n        this.menuButton_.el_.setAttribute('aria-expanded', 'true'); // set the focus into the submenu, except on iOS where it is resulting in\n        // undesired scrolling behavior when the player is in an iframe\n\n        if (IS_IOS && isInFrame()) {\n          // Return early so that the menu isn't focused\n          return;\n        }\n\n        this.menu.focus();\n      }\n    }\n    /**\n     * Take the current `MenuButton` out of a pressed state.\n     */\n    ;\n\n    _proto.unpressButton = function unpressButton() {\n      if (this.enabled_) {\n        this.buttonPressed_ = false;\n        this.menu.unlockShowing();\n        this.menu.hide();\n        this.menuButton_.el_.setAttribute('aria-expanded', 'false');\n      }\n    }\n    /**\n     * Disable the `MenuButton`. Don't allow it to be clicked.\n     */\n    ;\n\n    _proto.disable = function disable() {\n      this.unpressButton();\n      this.enabled_ = false;\n      this.addClass('vjs-disabled');\n      this.menuButton_.disable();\n    }\n    /**\n     * Enable the `MenuButton`. Allow it to be clicked.\n     */\n    ;\n\n    _proto.enable = function enable() {\n      this.enabled_ = true;\n      this.removeClass('vjs-disabled');\n      this.menuButton_.enable();\n    };\n\n    return MenuButton;\n  }(Component$1);\n\n  Component$1.registerComponent('MenuButton', MenuButton);\n\n  /**\n   * The base class for buttons that toggle specific  track types (e.g. subtitles).\n   *\n   * @extends MenuButton\n   */\n\n  var TrackButton = /*#__PURE__*/function (_MenuButton) {\n    inheritsLoose(TrackButton, _MenuButton);\n\n    /**\n     * Creates an instance of this class.\n     *\n     * @param {Player} player\n     *        The `Player` that this class should be attached to.\n     *\n     * @param {Object} [options]\n     *        The key/value store of player options.\n     */\n    function TrackButton(player, options) {\n      var _this;\n\n      var tracks = options.tracks;\n      _this = _MenuButton.call(this, player, options) || this;\n\n      if (_this.items.length <= 1) {\n        _this.hide();\n      }\n\n      if (!tracks) {\n        return assertThisInitialized(_this);\n      }\n\n      var updateHandler = bind(assertThisInitialized(_this), _this.update);\n      tracks.addEventListener('removetrack', updateHandler);\n      tracks.addEventListener('addtrack', updateHandler);\n      tracks.addEventListener('labelchange', updateHandler);\n\n      _this.player_.on('ready', updateHandler);\n\n      _this.player_.on('dispose', function () {\n        tracks.removeEventListener('removetrack', updateHandler);\n        tracks.removeEventListener('addtrack', updateHandler);\n        tracks.removeEventListener('labelchange', updateHandler);\n      });\n\n      return _this;\n    }\n\n    return TrackButton;\n  }(MenuButton);\n\n  Component$1.registerComponent('TrackButton', TrackButton);\n\n  /**\n   * @file menu-keys.js\n   */\n\n  /**\n    * All keys used for operation of a menu (`MenuButton`, `Menu`, and `MenuItem`)\n    * Note that 'Enter' and 'Space' are not included here (otherwise they would\n    * prevent the `MenuButton` and `MenuItem` from being keyboard-clickable)\n    * @typedef MenuKeys\n    * @array\n    */\n  var MenuKeys = ['Tab', 'Esc', 'Up', 'Down', 'Right', 'Left'];\n\n  /**\n   * The component for a menu item. `<li>`\n   *\n   * @extends ClickableComponent\n   */\n\n  var MenuItem = /*#__PURE__*/function (_ClickableComponent) {\n    inheritsLoose(MenuItem, _ClickableComponent);\n\n    /**\n     * Creates an instance of the this class.\n     *\n     * @param {Player} player\n     *        The `Player` that this class should be attached to.\n     *\n     * @param {Object} [options={}]\n     *        The key/value store of player options.\n     *\n     */\n    function MenuItem(player, options) {\n      var _this;\n\n      _this = _ClickableComponent.call(this, player, options) || this;\n      _this.selectable = options.selectable;\n      _this.isSelected_ = options.selected || false;\n      _this.multiSelectable = options.multiSelectable;\n\n      _this.selected(_this.isSelected_);\n\n      if (_this.selectable) {\n        if (_this.multiSelectable) {\n          _this.el_.setAttribute('role', 'menuitemcheckbox');\n        } else {\n          _this.el_.setAttribute('role', 'menuitemradio');\n        }\n      } else {\n        _this.el_.setAttribute('role', 'menuitem');\n      }\n\n      return _this;\n    }\n    /**\n     * Create the `MenuItem's DOM element\n     *\n     * @param {string} [type=li]\n     *        Element's node type, not actually used, always set to `li`.\n     *\n     * @param {Object} [props={}]\n     *        An object of properties that should be set on the element\n     *\n     * @param {Object} [attrs={}]\n     *        An object of attributes that should be set on the element\n     *\n     * @return {Element}\n     *         The element that gets created.\n     */\n\n\n    var _proto = MenuItem.prototype;\n\n    _proto.createEl = function createEl$1(type, props, attrs) {\n      // The control is textual, not just an icon\n      this.nonIconControl = true;\n\n      var el = _ClickableComponent.prototype.createEl.call(this, 'li', assign({\n        className: 'vjs-menu-item',\n        tabIndex: -1\n      }, props), attrs); // swap icon with menu item text.\n\n\n      el.replaceChild(createEl('span', {\n        className: 'vjs-menu-item-text',\n        textContent: this.localize(this.options_.label)\n      }), el.querySelector('.vjs-icon-placeholder'));\n      return el;\n    }\n    /**\n     * Ignore keys which are used by the menu, but pass any other ones up. See\n     * {@link ClickableComponent#handleKeyDown} for instances where this is called.\n     *\n     * @param {EventTarget~Event} event\n     *        The `keydown` event that caused this function to be called.\n     *\n     * @listens keydown\n     */\n    ;\n\n    _proto.handleKeyDown = function handleKeyDown(event) {\n      if (!MenuKeys.some(function (key) {\n        return keycode.isEventKey(event, key);\n      })) {\n        // Pass keydown handling up for unused keys\n        _ClickableComponent.prototype.handleKeyDown.call(this, event);\n      }\n    }\n    /**\n     * Any click on a `MenuItem` puts it into the selected state.\n     * See {@link ClickableComponent#handleClick} for instances where this is called.\n     *\n     * @param {EventTarget~Event} event\n     *        The `keydown`, `tap`, or `click` event that caused this function to be\n     *        called.\n     *\n     * @listens tap\n     * @listens click\n     */\n    ;\n\n    _proto.handleClick = function handleClick(event) {\n      this.selected(true);\n    }\n    /**\n     * Set the state for this menu item as selected or not.\n     *\n     * @param {boolean} selected\n     *        if the menu item is selected or not\n     */\n    ;\n\n    _proto.selected = function selected(_selected) {\n      if (this.selectable) {\n        if (_selected) {\n          this.addClass('vjs-selected');\n          this.el_.setAttribute('aria-checked', 'true'); // aria-checked isn't fully supported by browsers/screen readers,\n          // so indicate selected state to screen reader in the control text.\n\n          this.controlText(', selected');\n          this.isSelected_ = true;\n        } else {\n          this.removeClass('vjs-selected');\n          this.el_.setAttribute('aria-checked', 'false'); // Indicate un-selected state to screen reader\n\n          this.controlText('');\n          this.isSelected_ = false;\n        }\n      }\n    };\n\n    return MenuItem;\n  }(ClickableComponent);\n\n  Component$1.registerComponent('MenuItem', MenuItem);\n\n  /**\n   * The specific menu item type for selecting a language within a text track kind\n   *\n   * @extends MenuItem\n   */\n\n  var TextTrackMenuItem = /*#__PURE__*/function (_MenuItem) {\n    inheritsLoose(TextTrackMenuItem, _MenuItem);\n\n    /**\n     * Creates an instance of this class.\n     *\n     * @param {Player} player\n     *        The `Player` that this class should be attached to.\n     *\n     * @param {Object} [options]\n     *        The key/value store of player options.\n     */\n    function TextTrackMenuItem(player, options) {\n      var _this;\n\n      var track = options.track;\n      var tracks = player.textTracks(); // Modify options for parent MenuItem class's init.\n\n      options.label = track.label || track.language || 'Unknown';\n      options.selected = track.mode === 'showing';\n      _this = _MenuItem.call(this, player, options) || this;\n      _this.track = track; // Determine the relevant kind(s) of tracks for this component and filter\n      // out empty kinds.\n\n      _this.kinds = (options.kinds || [options.kind || _this.track.kind]).filter(Boolean);\n\n      var changeHandler = function changeHandler() {\n        for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {\n          args[_key] = arguments[_key];\n        }\n\n        _this.handleTracksChange.apply(assertThisInitialized(_this), args);\n      };\n\n      var selectedLanguageChangeHandler = function selectedLanguageChangeHandler() {\n        for (var _len2 = arguments.length, args = new Array(_len2), _key2 = 0; _key2 < _len2; _key2++) {\n          args[_key2] = arguments[_key2];\n        }\n\n        _this.handleSelectedLanguageChange.apply(assertThisInitialized(_this), args);\n      };\n\n      player.on(['loadstart', 'texttrackchange'], changeHandler);\n      tracks.addEventListener('change', changeHandler);\n      tracks.addEventListener('selectedlanguagechange', selectedLanguageChangeHandler);\n\n      _this.on('dispose', function () {\n        player.off(['loadstart', 'texttrackchange'], changeHandler);\n        tracks.removeEventListener('change', changeHandler);\n        tracks.removeEventListener('selectedlanguagechange', selectedLanguageChangeHandler);\n      }); // iOS7 doesn't dispatch change events to TextTrackLists when an\n      // associated track's mode changes. Without something like\n      // Object.observe() (also not present on iOS7), it's not\n      // possible to detect changes to the mode attribute and polyfill\n      // the change event. As a poor substitute, we manually dispatch\n      // change events whenever the controls modify the mode.\n\n\n      if (tracks.onchange === undefined) {\n        var event;\n\n        _this.on(['tap', 'click'], function () {\n          if (typeof window.Event !== 'object') {\n            // Android 2.3 throws an Illegal Constructor error for window.Event\n            try {\n              event = new window.Event('change');\n            } catch (err) {// continue regardless of error\n            }\n          }\n\n          if (!event) {\n            event = document.createEvent('Event');\n            event.initEvent('change', true, true);\n          }\n\n          tracks.dispatchEvent(event);\n        });\n      } // set the default state based on current tracks\n\n\n      _this.handleTracksChange();\n\n      return _this;\n    }\n    /**\n     * This gets called when an `TextTrackMenuItem` is \"clicked\". See\n     * {@link ClickableComponent} for more detailed information on what a click can be.\n     *\n     * @param {EventTarget~Event} event\n     *        The `keydown`, `tap`, or `click` event that caused this function to be\n     *        called.\n     *\n     * @listens tap\n     * @listens click\n     */\n\n\n    var _proto = TextTrackMenuItem.prototype;\n\n    _proto.handleClick = function handleClick(event) {\n      var referenceTrack = this.track;\n      var tracks = this.player_.textTracks();\n\n      _MenuItem.prototype.handleClick.call(this, event);\n\n      if (!tracks) {\n        return;\n      }\n\n      for (var i = 0; i < tracks.length; i++) {\n        var track = tracks[i]; // If the track from the text tracks list is not of the right kind,\n        // skip it. We do not want to affect tracks of incompatible kind(s).\n\n        if (this.kinds.indexOf(track.kind) === -1) {\n          continue;\n        } // If this text track is the component's track and it is not showing,\n        // set it to showing.\n\n\n        if (track === referenceTrack) {\n          if (track.mode !== 'showing') {\n            track.mode = 'showing';\n          } // If this text track is not the component's track and it is not\n          // disabled, set it to disabled.\n\n        } else if (track.mode !== 'disabled') {\n          track.mode = 'disabled';\n        }\n      }\n    }\n    /**\n     * Handle text track list change\n     *\n     * @param {EventTarget~Event} event\n     *        The `change` event that caused this function to be called.\n     *\n     * @listens TextTrackList#change\n     */\n    ;\n\n    _proto.handleTracksChange = function handleTracksChange(event) {\n      var shouldBeSelected = this.track.mode === 'showing'; // Prevent redundant selected() calls because they may cause\n      // screen readers to read the appended control text unnecessarily\n\n      if (shouldBeSelected !== this.isSelected_) {\n        this.selected(shouldBeSelected);\n      }\n    };\n\n    _proto.handleSelectedLanguageChange = function handleSelectedLanguageChange(event) {\n      if (this.track.mode === 'showing') {\n        var selectedLanguage = this.player_.cache_.selectedLanguage; // Don't replace the kind of track across the same language\n\n        if (selectedLanguage && selectedLanguage.enabled && selectedLanguage.language === this.track.language && selectedLanguage.kind !== this.track.kind) {\n          return;\n        }\n\n        this.player_.cache_.selectedLanguage = {\n          enabled: true,\n          language: this.track.language,\n          kind: this.track.kind\n        };\n      }\n    };\n\n    _proto.dispose = function dispose() {\n      // remove reference to track object on dispose\n      this.track = null;\n\n      _MenuItem.prototype.dispose.call(this);\n    };\n\n    return TextTrackMenuItem;\n  }(MenuItem);\n\n  Component$1.registerComponent('TextTrackMenuItem', TextTrackMenuItem);\n\n  /**\n   * A special menu item for turning of a specific type of text track\n   *\n   * @extends TextTrackMenuItem\n   */\n\n  var OffTextTrackMenuItem = /*#__PURE__*/function (_TextTrackMenuItem) {\n    inheritsLoose(OffTextTrackMenuItem, _TextTrackMenuItem);\n\n    /**\n     * Creates an instance of this class.\n     *\n     * @param {Player} player\n     *        The `Player` that this class should be attached to.\n     *\n     * @param {Object} [options]\n     *        The key/value store of player options.\n     */\n    function OffTextTrackMenuItem(player, options) {\n      // Create pseudo track info\n      // Requires options['kind']\n      options.track = {\n        player: player,\n        // it is no longer necessary to store `kind` or `kinds` on the track itself\n        // since they are now stored in the `kinds` property of all instances of\n        // TextTrackMenuItem, but this will remain for backwards compatibility\n        kind: options.kind,\n        kinds: options.kinds,\n        \"default\": false,\n        mode: 'disabled'\n      };\n\n      if (!options.kinds) {\n        options.kinds = [options.kind];\n      }\n\n      if (options.label) {\n        options.track.label = options.label;\n      } else {\n        options.track.label = options.kinds.join(' and ') + ' off';\n      } // MenuItem is selectable\n\n\n      options.selectable = true; // MenuItem is NOT multiSelectable (i.e. only one can be marked \"selected\" at a time)\n\n      options.multiSelectable = false;\n      return _TextTrackMenuItem.call(this, player, options) || this;\n    }\n    /**\n     * Handle text track change\n     *\n     * @param {EventTarget~Event} event\n     *        The event that caused this function to run\n     */\n\n\n    var _proto = OffTextTrackMenuItem.prototype;\n\n    _proto.handleTracksChange = function handleTracksChange(event) {\n      var tracks = this.player().textTracks();\n      var shouldBeSelected = true;\n\n      for (var i = 0, l = tracks.length; i < l; i++) {\n        var track = tracks[i];\n\n        if (this.options_.kinds.indexOf(track.kind) > -1 && track.mode === 'showing') {\n          shouldBeSelected = false;\n          break;\n        }\n      } // Prevent redundant selected() calls because they may cause\n      // screen readers to read the appended control text unnecessarily\n\n\n      if (shouldBeSelected !== this.isSelected_) {\n        this.selected(shouldBeSelected);\n      }\n    };\n\n    _proto.handleSelectedLanguageChange = function handleSelectedLanguageChange(event) {\n      var tracks = this.player().textTracks();\n      var allHidden = true;\n\n      for (var i = 0, l = tracks.length; i < l; i++) {\n        var track = tracks[i];\n\n        if (['captions', 'descriptions', 'subtitles'].indexOf(track.kind) > -1 && track.mode === 'showing') {\n          allHidden = false;\n          break;\n        }\n      }\n\n      if (allHidden) {\n        this.player_.cache_.selectedLanguage = {\n          enabled: false\n        };\n      }\n    };\n\n    return OffTextTrackMenuItem;\n  }(TextTrackMenuItem);\n\n  Component$1.registerComponent('OffTextTrackMenuItem', OffTextTrackMenuItem);\n\n  /**\n   * The base class for buttons that toggle specific text track types (e.g. subtitles)\n   *\n   * @extends MenuButton\n   */\n\n  var TextTrackButton = /*#__PURE__*/function (_TrackButton) {\n    inheritsLoose(TextTrackButton, _TrackButton);\n\n    /**\n     * Creates an instance of this class.\n     *\n     * @param {Player} player\n     *        The `Player` that this class should be attached to.\n     *\n     * @param {Object} [options={}]\n     *        The key/value store of player options.\n     */\n    function TextTrackButton(player, options) {\n      if (options === void 0) {\n        options = {};\n      }\n\n      options.tracks = player.textTracks();\n      return _TrackButton.call(this, player, options) || this;\n    }\n    /**\n     * Create a menu item for each text track\n     *\n     * @param {TextTrackMenuItem[]} [items=[]]\n     *        Existing array of items to use during creation\n     *\n     * @return {TextTrackMenuItem[]}\n     *         Array of menu items that were created\n     */\n\n\n    var _proto = TextTrackButton.prototype;\n\n    _proto.createItems = function createItems(items, TrackMenuItem) {\n      if (items === void 0) {\n        items = [];\n      }\n\n      if (TrackMenuItem === void 0) {\n        TrackMenuItem = TextTrackMenuItem;\n      }\n\n      // Label is an override for the [track] off label\n      // USed to localise captions/subtitles\n      var label;\n\n      if (this.label_) {\n        label = this.label_ + \" off\";\n      } // Add an OFF menu item to turn all tracks off\n\n\n      items.push(new OffTextTrackMenuItem(this.player_, {\n        kinds: this.kinds_,\n        kind: this.kind_,\n        label: label\n      }));\n      this.hideThreshold_ += 1;\n      var tracks = this.player_.textTracks();\n\n      if (!Array.isArray(this.kinds_)) {\n        this.kinds_ = [this.kind_];\n      }\n\n      for (var i = 0; i < tracks.length; i++) {\n        var track = tracks[i]; // only add tracks that are of an appropriate kind and have a label\n\n        if (this.kinds_.indexOf(track.kind) > -1) {\n          var item = new TrackMenuItem(this.player_, {\n            track: track,\n            kinds: this.kinds_,\n            kind: this.kind_,\n            // MenuItem is selectable\n            selectable: true,\n            // MenuItem is NOT multiSelectable (i.e. only one can be marked \"selected\" at a time)\n            multiSelectable: false\n          });\n          item.addClass(\"vjs-\" + track.kind + \"-menu-item\");\n          items.push(item);\n        }\n      }\n\n      return items;\n    };\n\n    return TextTrackButton;\n  }(TrackButton);\n\n  Component$1.registerComponent('TextTrackButton', TextTrackButton);\n\n  /**\n   * The chapter track menu item\n   *\n   * @extends MenuItem\n   */\n\n  var ChaptersTrackMenuItem = /*#__PURE__*/function (_MenuItem) {\n    inheritsLoose(ChaptersTrackMenuItem, _MenuItem);\n\n    /**\n     * Creates an instance of this class.\n     *\n     * @param {Player} player\n     *        The `Player` that this class should be attached to.\n     *\n     * @param {Object} [options]\n     *        The key/value store of player options.\n     */\n    function ChaptersTrackMenuItem(player, options) {\n      var _this;\n\n      var track = options.track;\n      var cue = options.cue;\n      var currentTime = player.currentTime(); // Modify options for parent MenuItem class's init.\n\n      options.selectable = true;\n      options.multiSelectable = false;\n      options.label = cue.text;\n      options.selected = cue.startTime <= currentTime && currentTime < cue.endTime;\n      _this = _MenuItem.call(this, player, options) || this;\n      _this.track = track;\n      _this.cue = cue;\n      return _this;\n    }\n    /**\n     * This gets called when an `ChaptersTrackMenuItem` is \"clicked\". See\n     * {@link ClickableComponent} for more detailed information on what a click can be.\n     *\n     * @param {EventTarget~Event} [event]\n     *        The `keydown`, `tap`, or `click` event that caused this function to be\n     *        called.\n     *\n     * @listens tap\n     * @listens click\n     */\n\n\n    var _proto = ChaptersTrackMenuItem.prototype;\n\n    _proto.handleClick = function handleClick(event) {\n      _MenuItem.prototype.handleClick.call(this);\n\n      this.player_.currentTime(this.cue.startTime);\n    };\n\n    return ChaptersTrackMenuItem;\n  }(MenuItem);\n\n  Component$1.registerComponent('ChaptersTrackMenuItem', ChaptersTrackMenuItem);\n\n  /**\n   * The button component for toggling and selecting chapters\n   * Chapters act much differently than other text tracks\n   * Cues are navigation vs. other tracks of alternative languages\n   *\n   * @extends TextTrackButton\n   */\n\n  var ChaptersButton = /*#__PURE__*/function (_TextTrackButton) {\n    inheritsLoose(ChaptersButton, _TextTrackButton);\n\n    /**\n     * Creates an instance of this class.\n     *\n     * @param {Player} player\n     *        The `Player` that this class should be attached to.\n     *\n     * @param {Object} [options]\n     *        The key/value store of player options.\n     *\n     * @param {Component~ReadyCallback} [ready]\n     *        The function to call when this function is ready.\n     */\n    function ChaptersButton(player, options, ready) {\n      var _this;\n\n      _this = _TextTrackButton.call(this, player, options, ready) || this;\n\n      _this.selectCurrentItem_ = function () {\n        _this.items.forEach(function (item) {\n          item.selected(_this.track_.activeCues[0] === item.cue);\n        });\n      };\n\n      return _this;\n    }\n    /**\n     * Builds the default DOM `className`.\n     *\n     * @return {string}\n     *         The DOM `className` for this object.\n     */\n\n\n    var _proto = ChaptersButton.prototype;\n\n    _proto.buildCSSClass = function buildCSSClass() {\n      return \"vjs-chapters-button \" + _TextTrackButton.prototype.buildCSSClass.call(this);\n    };\n\n    _proto.buildWrapperCSSClass = function buildWrapperCSSClass() {\n      return \"vjs-chapters-button \" + _TextTrackButton.prototype.buildWrapperCSSClass.call(this);\n    }\n    /**\n     * Update the menu based on the current state of its items.\n     *\n     * @param {EventTarget~Event} [event]\n     *        An event that triggered this function to run.\n     *\n     * @listens TextTrackList#addtrack\n     * @listens TextTrackList#removetrack\n     * @listens TextTrackList#change\n     */\n    ;\n\n    _proto.update = function update(event) {\n      if (event && event.track && event.track.kind !== 'chapters') {\n        return;\n      }\n\n      var track = this.findChaptersTrack();\n\n      if (track !== this.track_) {\n        this.setTrack(track);\n\n        _TextTrackButton.prototype.update.call(this);\n      } else if (!this.items || track && track.cues && track.cues.length !== this.items.length) {\n        // Update the menu initially or if the number of cues has changed since set\n        _TextTrackButton.prototype.update.call(this);\n      }\n    }\n    /**\n     * Set the currently selected track for the chapters button.\n     *\n     * @param {TextTrack} track\n     *        The new track to select. Nothing will change if this is the currently selected\n     *        track.\n     */\n    ;\n\n    _proto.setTrack = function setTrack(track) {\n      if (this.track_ === track) {\n        return;\n      }\n\n      if (!this.updateHandler_) {\n        this.updateHandler_ = this.update.bind(this);\n      } // here this.track_ refers to the old track instance\n\n\n      if (this.track_) {\n        var remoteTextTrackEl = this.player_.remoteTextTrackEls().getTrackElementByTrack_(this.track_);\n\n        if (remoteTextTrackEl) {\n          remoteTextTrackEl.removeEventListener('load', this.updateHandler_);\n        }\n\n        this.track_.removeEventListener('cuechange', this.selectCurrentItem_);\n        this.track_ = null;\n      }\n\n      this.track_ = track; // here this.track_ refers to the new track instance\n\n      if (this.track_) {\n        this.track_.mode = 'hidden';\n\n        var _remoteTextTrackEl = this.player_.remoteTextTrackEls().getTrackElementByTrack_(this.track_);\n\n        if (_remoteTextTrackEl) {\n          _remoteTextTrackEl.addEventListener('load', this.updateHandler_);\n        }\n\n        this.track_.addEventListener('cuechange', this.selectCurrentItem_);\n      }\n    }\n    /**\n     * Find the track object that is currently in use by this ChaptersButton\n     *\n     * @return {TextTrack|undefined}\n     *         The current track or undefined if none was found.\n     */\n    ;\n\n    _proto.findChaptersTrack = function findChaptersTrack() {\n      var tracks = this.player_.textTracks() || [];\n\n      for (var i = tracks.length - 1; i >= 0; i--) {\n        // We will always choose the last track as our chaptersTrack\n        var track = tracks[i];\n\n        if (track.kind === this.kind_) {\n          return track;\n        }\n      }\n    }\n    /**\n     * Get the caption for the ChaptersButton based on the track label. This will also\n     * use the current tracks localized kind as a fallback if a label does not exist.\n     *\n     * @return {string}\n     *         The tracks current label or the localized track kind.\n     */\n    ;\n\n    _proto.getMenuCaption = function getMenuCaption() {\n      if (this.track_ && this.track_.label) {\n        return this.track_.label;\n      }\n\n      return this.localize(toTitleCase$1(this.kind_));\n    }\n    /**\n     * Create menu from chapter track\n     *\n     * @return {Menu}\n     *         New menu for the chapter buttons\n     */\n    ;\n\n    _proto.createMenu = function createMenu() {\n      this.options_.title = this.getMenuCaption();\n      return _TextTrackButton.prototype.createMenu.call(this);\n    }\n    /**\n     * Create a menu item for each text track\n     *\n     * @return {TextTrackMenuItem[]}\n     *         Array of menu items\n     */\n    ;\n\n    _proto.createItems = function createItems() {\n      var items = [];\n\n      if (!this.track_) {\n        return items;\n      }\n\n      var cues = this.track_.cues;\n\n      if (!cues) {\n        return items;\n      }\n\n      for (var i = 0, l = cues.length; i < l; i++) {\n        var cue = cues[i];\n        var mi = new ChaptersTrackMenuItem(this.player_, {\n          track: this.track_,\n          cue: cue\n        });\n        items.push(mi);\n      }\n\n      return items;\n    };\n\n    return ChaptersButton;\n  }(TextTrackButton);\n  /**\n   * `kind` of TextTrack to look for to associate it with this menu.\n   *\n   * @type {string}\n   * @private\n   */\n\n\n  ChaptersButton.prototype.kind_ = 'chapters';\n  /**\n   * The text that should display over the `ChaptersButton`s controls. Added for localization.\n   *\n   * @type {string}\n   * @private\n   */\n\n  ChaptersButton.prototype.controlText_ = 'Chapters';\n  Component$1.registerComponent('ChaptersButton', ChaptersButton);\n\n  /**\n   * The button component for toggling and selecting descriptions\n   *\n   * @extends TextTrackButton\n   */\n\n  var DescriptionsButton = /*#__PURE__*/function (_TextTrackButton) {\n    inheritsLoose(DescriptionsButton, _TextTrackButton);\n\n    /**\n     * Creates an instance of this class.\n     *\n     * @param {Player} player\n     *        The `Player` that this class should be attached to.\n     *\n     * @param {Object} [options]\n     *        The key/value store of player options.\n     *\n     * @param {Component~ReadyCallback} [ready]\n     *        The function to call when this component is ready.\n     */\n    function DescriptionsButton(player, options, ready) {\n      var _this;\n\n      _this = _TextTrackButton.call(this, player, options, ready) || this;\n      var tracks = player.textTracks();\n      var changeHandler = bind(assertThisInitialized(_this), _this.handleTracksChange);\n      tracks.addEventListener('change', changeHandler);\n\n      _this.on('dispose', function () {\n        tracks.removeEventListener('change', changeHandler);\n      });\n\n      return _this;\n    }\n    /**\n     * Handle text track change\n     *\n     * @param {EventTarget~Event} event\n     *        The event that caused this function to run\n     *\n     * @listens TextTrackList#change\n     */\n\n\n    var _proto = DescriptionsButton.prototype;\n\n    _proto.handleTracksChange = function handleTracksChange(event) {\n      var tracks = this.player().textTracks();\n      var disabled = false; // Check whether a track of a different kind is showing\n\n      for (var i = 0, l = tracks.length; i < l; i++) {\n        var track = tracks[i];\n\n        if (track.kind !== this.kind_ && track.mode === 'showing') {\n          disabled = true;\n          break;\n        }\n      } // If another track is showing, disable this menu button\n\n\n      if (disabled) {\n        this.disable();\n      } else {\n        this.enable();\n      }\n    }\n    /**\n     * Builds the default DOM `className`.\n     *\n     * @return {string}\n     *         The DOM `className` for this object.\n     */\n    ;\n\n    _proto.buildCSSClass = function buildCSSClass() {\n      return \"vjs-descriptions-button \" + _TextTrackButton.prototype.buildCSSClass.call(this);\n    };\n\n    _proto.buildWrapperCSSClass = function buildWrapperCSSClass() {\n      return \"vjs-descriptions-button \" + _TextTrackButton.prototype.buildWrapperCSSClass.call(this);\n    };\n\n    return DescriptionsButton;\n  }(TextTrackButton);\n  /**\n   * `kind` of TextTrack to look for to associate it with this menu.\n   *\n   * @type {string}\n   * @private\n   */\n\n\n  DescriptionsButton.prototype.kind_ = 'descriptions';\n  /**\n   * The text that should display over the `DescriptionsButton`s controls. Added for localization.\n   *\n   * @type {string}\n   * @private\n   */\n\n  DescriptionsButton.prototype.controlText_ = 'Descriptions';\n  Component$1.registerComponent('DescriptionsButton', DescriptionsButton);\n\n  /**\n   * The button component for toggling and selecting subtitles\n   *\n   * @extends TextTrackButton\n   */\n\n  var SubtitlesButton = /*#__PURE__*/function (_TextTrackButton) {\n    inheritsLoose(SubtitlesButton, _TextTrackButton);\n\n    /**\n     * Creates an instance of this class.\n     *\n     * @param {Player} player\n     *        The `Player` that this class should be attached to.\n     *\n     * @param {Object} [options]\n     *        The key/value store of player options.\n     *\n     * @param {Component~ReadyCallback} [ready]\n     *        The function to call when this component is ready.\n     */\n    function SubtitlesButton(player, options, ready) {\n      return _TextTrackButton.call(this, player, options, ready) || this;\n    }\n    /**\n     * Builds the default DOM `className`.\n     *\n     * @return {string}\n     *         The DOM `className` for this object.\n     */\n\n\n    var _proto = SubtitlesButton.prototype;\n\n    _proto.buildCSSClass = function buildCSSClass() {\n      return \"vjs-subtitles-button \" + _TextTrackButton.prototype.buildCSSClass.call(this);\n    };\n\n    _proto.buildWrapperCSSClass = function buildWrapperCSSClass() {\n      return \"vjs-subtitles-button \" + _TextTrackButton.prototype.buildWrapperCSSClass.call(this);\n    };\n\n    return SubtitlesButton;\n  }(TextTrackButton);\n  /**\n   * `kind` of TextTrack to look for to associate it with this menu.\n   *\n   * @type {string}\n   * @private\n   */\n\n\n  SubtitlesButton.prototype.kind_ = 'subtitles';\n  /**\n   * The text that should display over the `SubtitlesButton`s controls. Added for localization.\n   *\n   * @type {string}\n   * @private\n   */\n\n  SubtitlesButton.prototype.controlText_ = 'Subtitles';\n  Component$1.registerComponent('SubtitlesButton', SubtitlesButton);\n\n  /**\n   * The menu item for caption track settings menu\n   *\n   * @extends TextTrackMenuItem\n   */\n\n  var CaptionSettingsMenuItem = /*#__PURE__*/function (_TextTrackMenuItem) {\n    inheritsLoose(CaptionSettingsMenuItem, _TextTrackMenuItem);\n\n    /**\n     * Creates an instance of this class.\n     *\n     * @param {Player} player\n     *        The `Player` that this class should be attached to.\n     *\n     * @param {Object} [options]\n     *        The key/value store of player options.\n     */\n    function CaptionSettingsMenuItem(player, options) {\n      var _this;\n\n      options.track = {\n        player: player,\n        kind: options.kind,\n        label: options.kind + ' settings',\n        selectable: false,\n        \"default\": false,\n        mode: 'disabled'\n      }; // CaptionSettingsMenuItem has no concept of 'selected'\n\n      options.selectable = false;\n      options.name = 'CaptionSettingsMenuItem';\n      _this = _TextTrackMenuItem.call(this, player, options) || this;\n\n      _this.addClass('vjs-texttrack-settings');\n\n      _this.controlText(', opens ' + options.kind + ' settings dialog');\n\n      return _this;\n    }\n    /**\n     * This gets called when an `CaptionSettingsMenuItem` is \"clicked\". See\n     * {@link ClickableComponent} for more detailed information on what a click can be.\n     *\n     * @param {EventTarget~Event} [event]\n     *        The `keydown`, `tap`, or `click` event that caused this function to be\n     *        called.\n     *\n     * @listens tap\n     * @listens click\n     */\n\n\n    var _proto = CaptionSettingsMenuItem.prototype;\n\n    _proto.handleClick = function handleClick(event) {\n      this.player().getChild('textTrackSettings').open();\n    };\n\n    return CaptionSettingsMenuItem;\n  }(TextTrackMenuItem);\n\n  Component$1.registerComponent('CaptionSettingsMenuItem', CaptionSettingsMenuItem);\n\n  /**\n   * The button component for toggling and selecting captions\n   *\n   * @extends TextTrackButton\n   */\n\n  var CaptionsButton = /*#__PURE__*/function (_TextTrackButton) {\n    inheritsLoose(CaptionsButton, _TextTrackButton);\n\n    /**\n     * Creates an instance of this class.\n     *\n     * @param {Player} player\n     *        The `Player` that this class should be attached to.\n     *\n     * @param {Object} [options]\n     *        The key/value store of player options.\n     *\n     * @param {Component~ReadyCallback} [ready]\n     *        The function to call when this component is ready.\n     */\n    function CaptionsButton(player, options, ready) {\n      return _TextTrackButton.call(this, player, options, ready) || this;\n    }\n    /**\n     * Builds the default DOM `className`.\n     *\n     * @return {string}\n     *         The DOM `className` for this object.\n     */\n\n\n    var _proto = CaptionsButton.prototype;\n\n    _proto.buildCSSClass = function buildCSSClass() {\n      return \"vjs-captions-button \" + _TextTrackButton.prototype.buildCSSClass.call(this);\n    };\n\n    _proto.buildWrapperCSSClass = function buildWrapperCSSClass() {\n      return \"vjs-captions-button \" + _TextTrackButton.prototype.buildWrapperCSSClass.call(this);\n    }\n    /**\n     * Create caption menu items\n     *\n     * @return {CaptionSettingsMenuItem[]}\n     *         The array of current menu items.\n     */\n    ;\n\n    _proto.createItems = function createItems() {\n      var items = [];\n\n      if (!(this.player().tech_ && this.player().tech_.featuresNativeTextTracks) && this.player().getChild('textTrackSettings')) {\n        items.push(new CaptionSettingsMenuItem(this.player_, {\n          kind: this.kind_\n        }));\n        this.hideThreshold_ += 1;\n      }\n\n      return _TextTrackButton.prototype.createItems.call(this, items);\n    };\n\n    return CaptionsButton;\n  }(TextTrackButton);\n  /**\n   * `kind` of TextTrack to look for to associate it with this menu.\n   *\n   * @type {string}\n   * @private\n   */\n\n\n  CaptionsButton.prototype.kind_ = 'captions';\n  /**\n   * The text that should display over the `CaptionsButton`s controls. Added for localization.\n   *\n   * @type {string}\n   * @private\n   */\n\n  CaptionsButton.prototype.controlText_ = 'Captions';\n  Component$1.registerComponent('CaptionsButton', CaptionsButton);\n\n  /**\n   * SubsCapsMenuItem has an [cc] icon to distinguish captions from subtitles\n   * in the SubsCapsMenu.\n   *\n   * @extends TextTrackMenuItem\n   */\n\n  var SubsCapsMenuItem = /*#__PURE__*/function (_TextTrackMenuItem) {\n    inheritsLoose(SubsCapsMenuItem, _TextTrackMenuItem);\n\n    function SubsCapsMenuItem() {\n      return _TextTrackMenuItem.apply(this, arguments) || this;\n    }\n\n    var _proto = SubsCapsMenuItem.prototype;\n\n    _proto.createEl = function createEl$1(type, props, attrs) {\n      var el = _TextTrackMenuItem.prototype.createEl.call(this, type, props, attrs);\n\n      var parentSpan = el.querySelector('.vjs-menu-item-text');\n\n      if (this.options_.track.kind === 'captions') {\n        parentSpan.appendChild(createEl('span', {\n          className: 'vjs-icon-placeholder'\n        }, {\n          'aria-hidden': true\n        }));\n        parentSpan.appendChild(createEl('span', {\n          className: 'vjs-control-text',\n          // space added as the text will visually flow with the\n          // label\n          textContent: \" \" + this.localize('Captions')\n        }));\n      }\n\n      return el;\n    };\n\n    return SubsCapsMenuItem;\n  }(TextTrackMenuItem);\n\n  Component$1.registerComponent('SubsCapsMenuItem', SubsCapsMenuItem);\n\n  /**\n   * The button component for toggling and selecting captions and/or subtitles\n   *\n   * @extends TextTrackButton\n   */\n\n  var SubsCapsButton = /*#__PURE__*/function (_TextTrackButton) {\n    inheritsLoose(SubsCapsButton, _TextTrackButton);\n\n    function SubsCapsButton(player, options) {\n      var _this;\n\n      if (options === void 0) {\n        options = {};\n      }\n\n      _this = _TextTrackButton.call(this, player, options) || this; // Although North America uses \"captions\" in most cases for\n      // \"captions and subtitles\" other locales use \"subtitles\"\n\n      _this.label_ = 'subtitles';\n\n      if (['en', 'en-us', 'en-ca', 'fr-ca'].indexOf(_this.player_.language_) > -1) {\n        _this.label_ = 'captions';\n      }\n\n      _this.menuButton_.controlText(toTitleCase$1(_this.label_));\n\n      return _this;\n    }\n    /**\n     * Builds the default DOM `className`.\n     *\n     * @return {string}\n     *         The DOM `className` for this object.\n     */\n\n\n    var _proto = SubsCapsButton.prototype;\n\n    _proto.buildCSSClass = function buildCSSClass() {\n      return \"vjs-subs-caps-button \" + _TextTrackButton.prototype.buildCSSClass.call(this);\n    };\n\n    _proto.buildWrapperCSSClass = function buildWrapperCSSClass() {\n      return \"vjs-subs-caps-button \" + _TextTrackButton.prototype.buildWrapperCSSClass.call(this);\n    }\n    /**\n     * Create caption/subtitles menu items\n     *\n     * @return {CaptionSettingsMenuItem[]}\n     *         The array of current menu items.\n     */\n    ;\n\n    _proto.createItems = function createItems() {\n      var items = [];\n\n      if (!(this.player().tech_ && this.player().tech_.featuresNativeTextTracks) && this.player().getChild('textTrackSettings')) {\n        items.push(new CaptionSettingsMenuItem(this.player_, {\n          kind: this.label_\n        }));\n        this.hideThreshold_ += 1;\n      }\n\n      items = _TextTrackButton.prototype.createItems.call(this, items, SubsCapsMenuItem);\n      return items;\n    };\n\n    return SubsCapsButton;\n  }(TextTrackButton);\n  /**\n   * `kind`s of TextTrack to look for to associate it with this menu.\n   *\n   * @type {array}\n   * @private\n   */\n\n\n  SubsCapsButton.prototype.kinds_ = ['captions', 'subtitles'];\n  /**\n   * The text that should display over the `SubsCapsButton`s controls.\n   *\n   *\n   * @type {string}\n   * @private\n   */\n\n  SubsCapsButton.prototype.controlText_ = 'Subtitles';\n  Component$1.registerComponent('SubsCapsButton', SubsCapsButton);\n\n  /**\n   * An {@link AudioTrack} {@link MenuItem}\n   *\n   * @extends MenuItem\n   */\n\n  var AudioTrackMenuItem = /*#__PURE__*/function (_MenuItem) {\n    inheritsLoose(AudioTrackMenuItem, _MenuItem);\n\n    /**\n     * Creates an instance of this class.\n     *\n     * @param {Player} player\n     *        The `Player` that this class should be attached to.\n     *\n     * @param {Object} [options]\n     *        The key/value store of player options.\n     */\n    function AudioTrackMenuItem(player, options) {\n      var _this;\n\n      var track = options.track;\n      var tracks = player.audioTracks(); // Modify options for parent MenuItem class's init.\n\n      options.label = track.label || track.language || 'Unknown';\n      options.selected = track.enabled;\n      _this = _MenuItem.call(this, player, options) || this;\n      _this.track = track;\n\n      _this.addClass(\"vjs-\" + track.kind + \"-menu-item\");\n\n      var changeHandler = function changeHandler() {\n        for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {\n          args[_key] = arguments[_key];\n        }\n\n        _this.handleTracksChange.apply(assertThisInitialized(_this), args);\n      };\n\n      tracks.addEventListener('change', changeHandler);\n\n      _this.on('dispose', function () {\n        tracks.removeEventListener('change', changeHandler);\n      });\n\n      return _this;\n    }\n\n    var _proto = AudioTrackMenuItem.prototype;\n\n    _proto.createEl = function createEl$1(type, props, attrs) {\n      var el = _MenuItem.prototype.createEl.call(this, type, props, attrs);\n\n      var parentSpan = el.querySelector('.vjs-menu-item-text');\n\n      if (this.options_.track.kind === 'main-desc') {\n        parentSpan.appendChild(createEl('span', {\n          className: 'vjs-icon-placeholder'\n        }, {\n          'aria-hidden': true\n        }));\n        parentSpan.appendChild(createEl('span', {\n          className: 'vjs-control-text',\n          textContent: ' ' + this.localize('Descriptions')\n        }));\n      }\n\n      return el;\n    }\n    /**\n     * This gets called when an `AudioTrackMenuItem is \"clicked\". See {@link ClickableComponent}\n     * for more detailed information on what a click can be.\n     *\n     * @param {EventTarget~Event} [event]\n     *        The `keydown`, `tap`, or `click` event that caused this function to be\n     *        called.\n     *\n     * @listens tap\n     * @listens click\n     */\n    ;\n\n    _proto.handleClick = function handleClick(event) {\n      _MenuItem.prototype.handleClick.call(this, event); // the audio track list will automatically toggle other tracks\n      // off for us.\n\n\n      this.track.enabled = true; // when native audio tracks are used, we want to make sure that other tracks are turned off\n\n      if (this.player_.tech_.featuresNativeAudioTracks) {\n        var tracks = this.player_.audioTracks();\n\n        for (var i = 0; i < tracks.length; i++) {\n          var track = tracks[i]; // skip the current track since we enabled it above\n\n          if (track === this.track) {\n            continue;\n          }\n\n          track.enabled = track === this.track;\n        }\n      }\n    }\n    /**\n     * Handle any {@link AudioTrack} change.\n     *\n     * @param {EventTarget~Event} [event]\n     *        The {@link AudioTrackList#change} event that caused this to run.\n     *\n     * @listens AudioTrackList#change\n     */\n    ;\n\n    _proto.handleTracksChange = function handleTracksChange(event) {\n      this.selected(this.track.enabled);\n    };\n\n    return AudioTrackMenuItem;\n  }(MenuItem);\n\n  Component$1.registerComponent('AudioTrackMenuItem', AudioTrackMenuItem);\n\n  /**\n   * The base class for buttons that toggle specific {@link AudioTrack} types.\n   *\n   * @extends TrackButton\n   */\n\n  var AudioTrackButton = /*#__PURE__*/function (_TrackButton) {\n    inheritsLoose(AudioTrackButton, _TrackButton);\n\n    /**\n     * Creates an instance of this class.\n     *\n     * @param {Player} player\n     *        The `Player` that this class should be attached to.\n     *\n     * @param {Object} [options={}]\n     *        The key/value store of player options.\n     */\n    function AudioTrackButton(player, options) {\n      if (options === void 0) {\n        options = {};\n      }\n\n      options.tracks = player.audioTracks();\n      return _TrackButton.call(this, player, options) || this;\n    }\n    /**\n     * Builds the default DOM `className`.\n     *\n     * @return {string}\n     *         The DOM `className` for this object.\n     */\n\n\n    var _proto = AudioTrackButton.prototype;\n\n    _proto.buildCSSClass = function buildCSSClass() {\n      return \"vjs-audio-button \" + _TrackButton.prototype.buildCSSClass.call(this);\n    };\n\n    _proto.buildWrapperCSSClass = function buildWrapperCSSClass() {\n      return \"vjs-audio-button \" + _TrackButton.prototype.buildWrapperCSSClass.call(this);\n    }\n    /**\n     * Create a menu item for each audio track\n     *\n     * @param {AudioTrackMenuItem[]} [items=[]]\n     *        An array of existing menu items to use.\n     *\n     * @return {AudioTrackMenuItem[]}\n     *         An array of menu items\n     */\n    ;\n\n    _proto.createItems = function createItems(items) {\n      if (items === void 0) {\n        items = [];\n      }\n\n      // if there's only one audio track, there no point in showing it\n      this.hideThreshold_ = 1;\n      var tracks = this.player_.audioTracks();\n\n      for (var i = 0; i < tracks.length; i++) {\n        var track = tracks[i];\n        items.push(new AudioTrackMenuItem(this.player_, {\n          track: track,\n          // MenuItem is selectable\n          selectable: true,\n          // MenuItem is NOT multiSelectable (i.e. only one can be marked \"selected\" at a time)\n          multiSelectable: false\n        }));\n      }\n\n      return items;\n    };\n\n    return AudioTrackButton;\n  }(TrackButton);\n  /**\n   * The text that should display over the `AudioTrackButton`s controls. Added for localization.\n   *\n   * @type {string}\n   * @private\n   */\n\n\n  AudioTrackButton.prototype.controlText_ = 'Audio Track';\n  Component$1.registerComponent('AudioTrackButton', AudioTrackButton);\n\n  /**\n   * The specific menu item type for selecting a playback rate.\n   *\n   * @extends MenuItem\n   */\n\n  var PlaybackRateMenuItem = /*#__PURE__*/function (_MenuItem) {\n    inheritsLoose(PlaybackRateMenuItem, _MenuItem);\n\n    /**\n     * Creates an instance of this class.\n     *\n     * @param {Player} player\n     *        The `Player` that this class should be attached to.\n     *\n     * @param {Object} [options]\n     *        The key/value store of player options.\n     */\n    function PlaybackRateMenuItem(player, options) {\n      var _this;\n\n      var label = options.rate;\n      var rate = parseFloat(label, 10); // Modify options for parent MenuItem class's init.\n\n      options.label = label;\n      options.selected = rate === player.playbackRate();\n      options.selectable = true;\n      options.multiSelectable = false;\n      _this = _MenuItem.call(this, player, options) || this;\n      _this.label = label;\n      _this.rate = rate;\n\n      _this.on(player, 'ratechange', function (e) {\n        return _this.update(e);\n      });\n\n      return _this;\n    }\n    /**\n     * This gets called when an `PlaybackRateMenuItem` is \"clicked\". See\n     * {@link ClickableComponent} for more detailed information on what a click can be.\n     *\n     * @param {EventTarget~Event} [event]\n     *        The `keydown`, `tap`, or `click` event that caused this function to be\n     *        called.\n     *\n     * @listens tap\n     * @listens click\n     */\n\n\n    var _proto = PlaybackRateMenuItem.prototype;\n\n    _proto.handleClick = function handleClick(event) {\n      _MenuItem.prototype.handleClick.call(this);\n\n      this.player().playbackRate(this.rate);\n    }\n    /**\n     * Update the PlaybackRateMenuItem when the playbackrate changes.\n     *\n     * @param {EventTarget~Event} [event]\n     *        The `ratechange` event that caused this function to run.\n     *\n     * @listens Player#ratechange\n     */\n    ;\n\n    _proto.update = function update(event) {\n      this.selected(this.player().playbackRate() === this.rate);\n    };\n\n    return PlaybackRateMenuItem;\n  }(MenuItem);\n  /**\n   * The text that should display over the `PlaybackRateMenuItem`s controls. Added for localization.\n   *\n   * @type {string}\n   * @private\n   */\n\n\n  PlaybackRateMenuItem.prototype.contentElType = 'button';\n  Component$1.registerComponent('PlaybackRateMenuItem', PlaybackRateMenuItem);\n\n  /**\n   * The component for controlling the playback rate.\n   *\n   * @extends MenuButton\n   */\n\n  var PlaybackRateMenuButton = /*#__PURE__*/function (_MenuButton) {\n    inheritsLoose(PlaybackRateMenuButton, _MenuButton);\n\n    /**\n     * Creates an instance of this class.\n     *\n     * @param {Player} player\n     *        The `Player` that this class should be attached to.\n     *\n     * @param {Object} [options]\n     *        The key/value store of player options.\n     */\n    function PlaybackRateMenuButton(player, options) {\n      var _this;\n\n      _this = _MenuButton.call(this, player, options) || this;\n\n      _this.menuButton_.el_.setAttribute('aria-describedby', _this.labelElId_);\n\n      _this.updateVisibility();\n\n      _this.updateLabel();\n\n      _this.on(player, 'loadstart', function (e) {\n        return _this.updateVisibility(e);\n      });\n\n      _this.on(player, 'ratechange', function (e) {\n        return _this.updateLabel(e);\n      });\n\n      _this.on(player, 'playbackrateschange', function (e) {\n        return _this.handlePlaybackRateschange(e);\n      });\n\n      return _this;\n    }\n    /**\n     * Create the `Component`'s DOM element\n     *\n     * @return {Element}\n     *         The element that was created.\n     */\n\n\n    var _proto = PlaybackRateMenuButton.prototype;\n\n    _proto.createEl = function createEl$1() {\n      var el = _MenuButton.prototype.createEl.call(this);\n\n      this.labelElId_ = 'vjs-playback-rate-value-label-' + this.id_;\n      this.labelEl_ = createEl('div', {\n        className: 'vjs-playback-rate-value',\n        id: this.labelElId_,\n        textContent: '1x'\n      });\n      el.appendChild(this.labelEl_);\n      return el;\n    };\n\n    _proto.dispose = function dispose() {\n      this.labelEl_ = null;\n\n      _MenuButton.prototype.dispose.call(this);\n    }\n    /**\n     * Builds the default DOM `className`.\n     *\n     * @return {string}\n     *         The DOM `className` for this object.\n     */\n    ;\n\n    _proto.buildCSSClass = function buildCSSClass() {\n      return \"vjs-playback-rate \" + _MenuButton.prototype.buildCSSClass.call(this);\n    };\n\n    _proto.buildWrapperCSSClass = function buildWrapperCSSClass() {\n      return \"vjs-playback-rate \" + _MenuButton.prototype.buildWrapperCSSClass.call(this);\n    }\n    /**\n     * Create the list of menu items. Specific to each subclass.\n     *\n     */\n    ;\n\n    _proto.createItems = function createItems() {\n      var rates = this.playbackRates();\n      var items = [];\n\n      for (var i = rates.length - 1; i >= 0; i--) {\n        items.push(new PlaybackRateMenuItem(this.player(), {\n          rate: rates[i] + 'x'\n        }));\n      }\n\n      return items;\n    }\n    /**\n     * Updates ARIA accessibility attributes\n     */\n    ;\n\n    _proto.updateARIAAttributes = function updateARIAAttributes() {\n      // Current playback rate\n      this.el().setAttribute('aria-valuenow', this.player().playbackRate());\n    }\n    /**\n     * This gets called when an `PlaybackRateMenuButton` is \"clicked\". See\n     * {@link ClickableComponent} for more detailed information on what a click can be.\n     *\n     * @param {EventTarget~Event} [event]\n     *        The `keydown`, `tap`, or `click` event that caused this function to be\n     *        called.\n     *\n     * @listens tap\n     * @listens click\n     */\n    ;\n\n    _proto.handleClick = function handleClick(event) {\n      // select next rate option\n      var currentRate = this.player().playbackRate();\n      var rates = this.playbackRates();\n      var currentIndex = rates.indexOf(currentRate); // this get the next rate and it will select first one if the last one currently selected\n\n      var newIndex = (currentIndex + 1) % rates.length;\n      this.player().playbackRate(rates[newIndex]);\n    }\n    /**\n     * On playbackrateschange, update the menu to account for the new items.\n     *\n     * @listens Player#playbackrateschange\n     */\n    ;\n\n    _proto.handlePlaybackRateschange = function handlePlaybackRateschange(event) {\n      this.update();\n    }\n    /**\n     * Get possible playback rates\n     *\n     * @return {Array}\n     *         All possible playback rates\n     */\n    ;\n\n    _proto.playbackRates = function playbackRates() {\n      var player = this.player();\n      return player.playbackRates && player.playbackRates() || [];\n    }\n    /**\n     * Get whether playback rates is supported by the tech\n     * and an array of playback rates exists\n     *\n     * @return {boolean}\n     *         Whether changing playback rate is supported\n     */\n    ;\n\n    _proto.playbackRateSupported = function playbackRateSupported() {\n      return this.player().tech_ && this.player().tech_.featuresPlaybackRate && this.playbackRates() && this.playbackRates().length > 0;\n    }\n    /**\n     * Hide playback rate controls when they're no playback rate options to select\n     *\n     * @param {EventTarget~Event} [event]\n     *        The event that caused this function to run.\n     *\n     * @listens Player#loadstart\n     */\n    ;\n\n    _proto.updateVisibility = function updateVisibility(event) {\n      if (this.playbackRateSupported()) {\n        this.removeClass('vjs-hidden');\n      } else {\n        this.addClass('vjs-hidden');\n      }\n    }\n    /**\n     * Update button label when rate changed\n     *\n     * @param {EventTarget~Event} [event]\n     *        The event that caused this function to run.\n     *\n     * @listens Player#ratechange\n     */\n    ;\n\n    _proto.updateLabel = function updateLabel(event) {\n      if (this.playbackRateSupported()) {\n        this.labelEl_.textContent = this.player().playbackRate() + 'x';\n      }\n    };\n\n    return PlaybackRateMenuButton;\n  }(MenuButton);\n  /**\n   * The text that should display over the `FullscreenToggle`s controls. Added for localization.\n   *\n   * @type {string}\n   * @private\n   */\n\n\n  PlaybackRateMenuButton.prototype.controlText_ = 'Playback Rate';\n  Component$1.registerComponent('PlaybackRateMenuButton', PlaybackRateMenuButton);\n\n  /**\n   * Just an empty spacer element that can be used as an append point for plugins, etc.\n   * Also can be used to create space between elements when necessary.\n   *\n   * @extends Component\n   */\n\n  var Spacer = /*#__PURE__*/function (_Component) {\n    inheritsLoose(Spacer, _Component);\n\n    function Spacer() {\n      return _Component.apply(this, arguments) || this;\n    }\n\n    var _proto = Spacer.prototype;\n\n    /**\n    * Builds the default DOM `className`.\n    *\n    * @return {string}\n    *         The DOM `className` for this object.\n    */\n    _proto.buildCSSClass = function buildCSSClass() {\n      return \"vjs-spacer \" + _Component.prototype.buildCSSClass.call(this);\n    }\n    /**\n     * Create the `Component`'s DOM element\n     *\n     * @return {Element}\n     *         The element that was created.\n     */\n    ;\n\n    _proto.createEl = function createEl(tag, props, attributes) {\n      if (tag === void 0) {\n        tag = 'div';\n      }\n\n      if (props === void 0) {\n        props = {};\n      }\n\n      if (attributes === void 0) {\n        attributes = {};\n      }\n\n      if (!props.className) {\n        props.className = this.buildCSSClass();\n      }\n\n      return _Component.prototype.createEl.call(this, tag, props, attributes);\n    };\n\n    return Spacer;\n  }(Component$1);\n\n  Component$1.registerComponent('Spacer', Spacer);\n\n  /**\n   * Spacer specifically meant to be used as an insertion point for new plugins, etc.\n   *\n   * @extends Spacer\n   */\n\n  var CustomControlSpacer = /*#__PURE__*/function (_Spacer) {\n    inheritsLoose(CustomControlSpacer, _Spacer);\n\n    function CustomControlSpacer() {\n      return _Spacer.apply(this, arguments) || this;\n    }\n\n    var _proto = CustomControlSpacer.prototype;\n\n    /**\n     * Builds the default DOM `className`.\n     *\n     * @return {string}\n     *         The DOM `className` for this object.\n     */\n    _proto.buildCSSClass = function buildCSSClass() {\n      return \"vjs-custom-control-spacer \" + _Spacer.prototype.buildCSSClass.call(this);\n    }\n    /**\n     * Create the `Component`'s DOM element\n     *\n     * @return {Element}\n     *         The element that was created.\n     */\n    ;\n\n    _proto.createEl = function createEl() {\n      return _Spacer.prototype.createEl.call(this, 'div', {\n        className: this.buildCSSClass(),\n        // No-flex/table-cell mode requires there be some content\n        // in the cell to fill the remaining space of the table.\n        textContent: \"\\xA0\"\n      });\n    };\n\n    return CustomControlSpacer;\n  }(Spacer);\n\n  Component$1.registerComponent('CustomControlSpacer', CustomControlSpacer);\n\n  /**\n   * Container of main controls.\n   *\n   * @extends Component\n   */\n\n  var ControlBar = /*#__PURE__*/function (_Component) {\n    inheritsLoose(ControlBar, _Component);\n\n    function ControlBar() {\n      return _Component.apply(this, arguments) || this;\n    }\n\n    var _proto = ControlBar.prototype;\n\n    /**\n     * Create the `Component`'s DOM element\n     *\n     * @return {Element}\n     *         The element that was created.\n     */\n    _proto.createEl = function createEl() {\n      return _Component.prototype.createEl.call(this, 'div', {\n        className: 'vjs-control-bar',\n        dir: 'ltr'\n      });\n    };\n\n    return ControlBar;\n  }(Component$1);\n  /**\n   * Default options for `ControlBar`\n   *\n   * @type {Object}\n   * @private\n   */\n\n\n  ControlBar.prototype.options_ = {\n    children: ['playToggle', 'volumePanel', 'currentTimeDisplay', 'timeDivider', 'durationDisplay', 'progressControl', 'liveDisplay', 'seekToLive', 'remainingTimeDisplay', 'customControlSpacer', 'playbackRateMenuButton', 'chaptersButton', 'descriptionsButton', 'subsCapsButton', 'audioTrackButton', 'fullscreenToggle']\n  };\n\n  if ('exitPictureInPicture' in document) {\n    ControlBar.prototype.options_.children.splice(ControlBar.prototype.options_.children.length - 1, 0, 'pictureInPictureToggle');\n  }\n\n  Component$1.registerComponent('ControlBar', ControlBar);\n\n  /**\n   * A display that indicates an error has occurred. This means that the video\n   * is unplayable.\n   *\n   * @extends ModalDialog\n   */\n\n  var ErrorDisplay = /*#__PURE__*/function (_ModalDialog) {\n    inheritsLoose(ErrorDisplay, _ModalDialog);\n\n    /**\n     * Creates an instance of this class.\n     *\n     * @param  {Player} player\n     *         The `Player` that this class should be attached to.\n     *\n     * @param  {Object} [options]\n     *         The key/value store of player options.\n     */\n    function ErrorDisplay(player, options) {\n      var _this;\n\n      _this = _ModalDialog.call(this, player, options) || this;\n\n      _this.on(player, 'error', function (e) {\n        return _this.open(e);\n      });\n\n      return _this;\n    }\n    /**\n     * Builds the default DOM `className`.\n     *\n     * @return {string}\n     *         The DOM `className` for this object.\n     *\n     * @deprecated Since version 5.\n     */\n\n\n    var _proto = ErrorDisplay.prototype;\n\n    _proto.buildCSSClass = function buildCSSClass() {\n      return \"vjs-error-display \" + _ModalDialog.prototype.buildCSSClass.call(this);\n    }\n    /**\n     * Gets the localized error message based on the `Player`s error.\n     *\n     * @return {string}\n     *         The `Player`s error message localized or an empty string.\n     */\n    ;\n\n    _proto.content = function content() {\n      var error = this.player().error();\n      return error ? this.localize(error.message) : '';\n    };\n\n    return ErrorDisplay;\n  }(ModalDialog);\n  /**\n   * The default options for an `ErrorDisplay`.\n   *\n   * @private\n   */\n\n\n  ErrorDisplay.prototype.options_ = _extends_1({}, ModalDialog.prototype.options_, {\n    pauseOnOpen: false,\n    fillAlways: true,\n    temporary: false,\n    uncloseable: true\n  });\n  Component$1.registerComponent('ErrorDisplay', ErrorDisplay);\n\n  var LOCAL_STORAGE_KEY$1 = 'vjs-text-track-settings';\n  var COLOR_BLACK = ['#000', 'Black'];\n  var COLOR_BLUE = ['#00F', 'Blue'];\n  var COLOR_CYAN = ['#0FF', 'Cyan'];\n  var COLOR_GREEN = ['#0F0', 'Green'];\n  var COLOR_MAGENTA = ['#F0F', 'Magenta'];\n  var COLOR_RED = ['#F00', 'Red'];\n  var COLOR_WHITE = ['#FFF', 'White'];\n  var COLOR_YELLOW = ['#FF0', 'Yellow'];\n  var OPACITY_OPAQUE = ['1', 'Opaque'];\n  var OPACITY_SEMI = ['0.5', 'Semi-Transparent'];\n  var OPACITY_TRANS = ['0', 'Transparent']; // Configuration for the various <select> elements in the DOM of this component.\n  //\n  // Possible keys include:\n  //\n  // `default`:\n  //   The default option index. Only needs to be provided if not zero.\n  // `parser`:\n  //   A function which is used to parse the value from the selected option in\n  //   a customized way.\n  // `selector`:\n  //   The selector used to find the associated <select> element.\n\n  var selectConfigs = {\n    backgroundColor: {\n      selector: '.vjs-bg-color > select',\n      id: 'captions-background-color-%s',\n      label: 'Color',\n      options: [COLOR_BLACK, COLOR_WHITE, COLOR_RED, COLOR_GREEN, COLOR_BLUE, COLOR_YELLOW, COLOR_MAGENTA, COLOR_CYAN]\n    },\n    backgroundOpacity: {\n      selector: '.vjs-bg-opacity > select',\n      id: 'captions-background-opacity-%s',\n      label: 'Transparency',\n      options: [OPACITY_OPAQUE, OPACITY_SEMI, OPACITY_TRANS]\n    },\n    color: {\n      selector: '.vjs-fg-color > select',\n      id: 'captions-foreground-color-%s',\n      label: 'Color',\n      options: [COLOR_WHITE, COLOR_BLACK, COLOR_RED, COLOR_GREEN, COLOR_BLUE, COLOR_YELLOW, COLOR_MAGENTA, COLOR_CYAN]\n    },\n    edgeStyle: {\n      selector: '.vjs-edge-style > select',\n      id: '%s',\n      label: 'Text Edge Style',\n      options: [['none', 'None'], ['raised', 'Raised'], ['depressed', 'Depressed'], ['uniform', 'Uniform'], ['dropshadow', 'Dropshadow']]\n    },\n    fontFamily: {\n      selector: '.vjs-font-family > select',\n      id: 'captions-font-family-%s',\n      label: 'Font Family',\n      options: [['proportionalSansSerif', 'Proportional Sans-Serif'], ['monospaceSansSerif', 'Monospace Sans-Serif'], ['proportionalSerif', 'Proportional Serif'], ['monospaceSerif', 'Monospace Serif'], ['casual', 'Casual'], ['script', 'Script'], ['small-caps', 'Small Caps']]\n    },\n    fontPercent: {\n      selector: '.vjs-font-percent > select',\n      id: 'captions-font-size-%s',\n      label: 'Font Size',\n      options: [['0.50', '50%'], ['0.75', '75%'], ['1.00', '100%'], ['1.25', '125%'], ['1.50', '150%'], ['1.75', '175%'], ['2.00', '200%'], ['3.00', '300%'], ['4.00', '400%']],\n      \"default\": 2,\n      parser: function parser(v) {\n        return v === '1.00' ? null : Number(v);\n      }\n    },\n    textOpacity: {\n      selector: '.vjs-text-opacity > select',\n      id: 'captions-foreground-opacity-%s',\n      label: 'Transparency',\n      options: [OPACITY_OPAQUE, OPACITY_SEMI]\n    },\n    // Options for this object are defined below.\n    windowColor: {\n      selector: '.vjs-window-color > select',\n      id: 'captions-window-color-%s',\n      label: 'Color'\n    },\n    // Options for this object are defined below.\n    windowOpacity: {\n      selector: '.vjs-window-opacity > select',\n      id: 'captions-window-opacity-%s',\n      label: 'Transparency',\n      options: [OPACITY_TRANS, OPACITY_SEMI, OPACITY_OPAQUE]\n    }\n  };\n  selectConfigs.windowColor.options = selectConfigs.backgroundColor.options;\n  /**\n   * Get the actual value of an option.\n   *\n   * @param  {string} value\n   *         The value to get\n   *\n   * @param  {Function} [parser]\n   *         Optional function to adjust the value.\n   *\n   * @return {Mixed}\n   *         - Will be `undefined` if no value exists\n   *         - Will be `undefined` if the given value is \"none\".\n   *         - Will be the actual value otherwise.\n   *\n   * @private\n   */\n\n  function parseOptionValue(value, parser) {\n    if (parser) {\n      value = parser(value);\n    }\n\n    if (value && value !== 'none') {\n      return value;\n    }\n  }\n  /**\n   * Gets the value of the selected <option> element within a <select> element.\n   *\n   * @param  {Element} el\n   *         the element to look in\n   *\n   * @param  {Function} [parser]\n   *         Optional function to adjust the value.\n   *\n   * @return {Mixed}\n   *         - Will be `undefined` if no value exists\n   *         - Will be `undefined` if the given value is \"none\".\n   *         - Will be the actual value otherwise.\n   *\n   * @private\n   */\n\n\n  function getSelectedOptionValue(el, parser) {\n    var value = el.options[el.options.selectedIndex].value;\n    return parseOptionValue(value, parser);\n  }\n  /**\n   * Sets the selected <option> element within a <select> element based on a\n   * given value.\n   *\n   * @param {Element} el\n   *        The element to look in.\n   *\n   * @param {string} value\n   *        the property to look on.\n   *\n   * @param {Function} [parser]\n   *        Optional function to adjust the value before comparing.\n   *\n   * @private\n   */\n\n\n  function setSelectedOption(el, value, parser) {\n    if (!value) {\n      return;\n    }\n\n    for (var i = 0; i < el.options.length; i++) {\n      if (parseOptionValue(el.options[i].value, parser) === value) {\n        el.selectedIndex = i;\n        break;\n      }\n    }\n  }\n  /**\n   * Manipulate Text Tracks settings.\n   *\n   * @extends ModalDialog\n   */\n\n\n  var TextTrackSettings = /*#__PURE__*/function (_ModalDialog) {\n    inheritsLoose(TextTrackSettings, _ModalDialog);\n\n    /**\n     * Creates an instance of this class.\n     *\n     * @param {Player} player\n     *         The `Player` that this class should be attached to.\n     *\n     * @param {Object} [options]\n     *         The key/value store of player options.\n     */\n    function TextTrackSettings(player, options) {\n      var _this;\n\n      options.temporary = false;\n      _this = _ModalDialog.call(this, player, options) || this;\n      _this.updateDisplay = _this.updateDisplay.bind(assertThisInitialized(_this)); // fill the modal and pretend we have opened it\n\n      _this.fill();\n\n      _this.hasBeenOpened_ = _this.hasBeenFilled_ = true;\n      _this.endDialog = createEl('p', {\n        className: 'vjs-control-text',\n        textContent: _this.localize('End of dialog window.')\n      });\n\n      _this.el().appendChild(_this.endDialog);\n\n      _this.setDefaults(); // Grab `persistTextTrackSettings` from the player options if not passed in child options\n\n\n      if (options.persistTextTrackSettings === undefined) {\n        _this.options_.persistTextTrackSettings = _this.options_.playerOptions.persistTextTrackSettings;\n      }\n\n      _this.on(_this.$('.vjs-done-button'), 'click', function () {\n        _this.saveSettings();\n\n        _this.close();\n      });\n\n      _this.on(_this.$('.vjs-default-button'), 'click', function () {\n        _this.setDefaults();\n\n        _this.updateDisplay();\n      });\n\n      each(selectConfigs, function (config) {\n        _this.on(_this.$(config.selector), 'change', _this.updateDisplay);\n      });\n\n      if (_this.options_.persistTextTrackSettings) {\n        _this.restoreSettings();\n      }\n\n      return _this;\n    }\n\n    var _proto = TextTrackSettings.prototype;\n\n    _proto.dispose = function dispose() {\n      this.endDialog = null;\n\n      _ModalDialog.prototype.dispose.call(this);\n    }\n    /**\n     * Create a <select> element with configured options.\n     *\n     * @param {string} key\n     *        Configuration key to use during creation.\n     *\n     * @return {string}\n     *         An HTML string.\n     *\n     * @private\n     */\n    ;\n\n    _proto.createElSelect_ = function createElSelect_(key, legendId, type) {\n      var _this2 = this;\n\n      if (legendId === void 0) {\n        legendId = '';\n      }\n\n      if (type === void 0) {\n        type = 'label';\n      }\n\n      var config = selectConfigs[key];\n      var id = config.id.replace('%s', this.id_);\n      var selectLabelledbyIds = [legendId, id].join(' ').trim();\n      return [\"<\" + type + \" id=\\\"\" + id + \"\\\" class=\\\"\" + (type === 'label' ? 'vjs-label' : '') + \"\\\">\", this.localize(config.label), \"</\" + type + \">\", \"<select aria-labelledby=\\\"\" + selectLabelledbyIds + \"\\\">\"].concat(config.options.map(function (o) {\n        var optionId = id + '-' + o[1].replace(/\\W+/g, '');\n        return [\"<option id=\\\"\" + optionId + \"\\\" value=\\\"\" + o[0] + \"\\\" \", \"aria-labelledby=\\\"\" + selectLabelledbyIds + \" \" + optionId + \"\\\">\", _this2.localize(o[1]), '</option>'].join('');\n      })).concat('</select>').join('');\n    }\n    /**\n     * Create foreground color element for the component\n     *\n     * @return {string}\n     *         An HTML string.\n     *\n     * @private\n     */\n    ;\n\n    _proto.createElFgColor_ = function createElFgColor_() {\n      var legendId = \"captions-text-legend-\" + this.id_;\n      return ['<fieldset class=\"vjs-fg-color vjs-track-setting\">', \"<legend id=\\\"\" + legendId + \"\\\">\", this.localize('Text'), '</legend>', this.createElSelect_('color', legendId), '<span class=\"vjs-text-opacity vjs-opacity\">', this.createElSelect_('textOpacity', legendId), '</span>', '</fieldset>'].join('');\n    }\n    /**\n     * Create background color element for the component\n     *\n     * @return {string}\n     *         An HTML string.\n     *\n     * @private\n     */\n    ;\n\n    _proto.createElBgColor_ = function createElBgColor_() {\n      var legendId = \"captions-background-\" + this.id_;\n      return ['<fieldset class=\"vjs-bg-color vjs-track-setting\">', \"<legend id=\\\"\" + legendId + \"\\\">\", this.localize('Background'), '</legend>', this.createElSelect_('backgroundColor', legendId), '<span class=\"vjs-bg-opacity vjs-opacity\">', this.createElSelect_('backgroundOpacity', legendId), '</span>', '</fieldset>'].join('');\n    }\n    /**\n     * Create window color element for the component\n     *\n     * @return {string}\n     *         An HTML string.\n     *\n     * @private\n     */\n    ;\n\n    _proto.createElWinColor_ = function createElWinColor_() {\n      var legendId = \"captions-window-\" + this.id_;\n      return ['<fieldset class=\"vjs-window-color vjs-track-setting\">', \"<legend id=\\\"\" + legendId + \"\\\">\", this.localize('Window'), '</legend>', this.createElSelect_('windowColor', legendId), '<span class=\"vjs-window-opacity vjs-opacity\">', this.createElSelect_('windowOpacity', legendId), '</span>', '</fieldset>'].join('');\n    }\n    /**\n     * Create color elements for the component\n     *\n     * @return {Element}\n     *         The element that was created\n     *\n     * @private\n     */\n    ;\n\n    _proto.createElColors_ = function createElColors_() {\n      return createEl('div', {\n        className: 'vjs-track-settings-colors',\n        innerHTML: [this.createElFgColor_(), this.createElBgColor_(), this.createElWinColor_()].join('')\n      });\n    }\n    /**\n     * Create font elements for the component\n     *\n     * @return {Element}\n     *         The element that was created.\n     *\n     * @private\n     */\n    ;\n\n    _proto.createElFont_ = function createElFont_() {\n      return createEl('div', {\n        className: 'vjs-track-settings-font',\n        innerHTML: ['<fieldset class=\"vjs-font-percent vjs-track-setting\">', this.createElSelect_('fontPercent', '', 'legend'), '</fieldset>', '<fieldset class=\"vjs-edge-style vjs-track-setting\">', this.createElSelect_('edgeStyle', '', 'legend'), '</fieldset>', '<fieldset class=\"vjs-font-family vjs-track-setting\">', this.createElSelect_('fontFamily', '', 'legend'), '</fieldset>'].join('')\n      });\n    }\n    /**\n     * Create controls for the component\n     *\n     * @return {Element}\n     *         The element that was created.\n     *\n     * @private\n     */\n    ;\n\n    _proto.createElControls_ = function createElControls_() {\n      var defaultsDescription = this.localize('restore all settings to the default values');\n      return createEl('div', {\n        className: 'vjs-track-settings-controls',\n        innerHTML: [\"<button type=\\\"button\\\" class=\\\"vjs-default-button\\\" title=\\\"\" + defaultsDescription + \"\\\">\", this.localize('Reset'), \"<span class=\\\"vjs-control-text\\\"> \" + defaultsDescription + \"</span>\", '</button>', \"<button type=\\\"button\\\" class=\\\"vjs-done-button\\\">\" + this.localize('Done') + \"</button>\"].join('')\n      });\n    };\n\n    _proto.content = function content() {\n      return [this.createElColors_(), this.createElFont_(), this.createElControls_()];\n    };\n\n    _proto.label = function label() {\n      return this.localize('Caption Settings Dialog');\n    };\n\n    _proto.description = function description() {\n      return this.localize('Beginning of dialog window. Escape will cancel and close the window.');\n    };\n\n    _proto.buildCSSClass = function buildCSSClass() {\n      return _ModalDialog.prototype.buildCSSClass.call(this) + ' vjs-text-track-settings';\n    }\n    /**\n     * Gets an object of text track settings (or null).\n     *\n     * @return {Object}\n     *         An object with config values parsed from the DOM or localStorage.\n     */\n    ;\n\n    _proto.getValues = function getValues() {\n      var _this3 = this;\n\n      return reduce(selectConfigs, function (accum, config, key) {\n        var value = getSelectedOptionValue(_this3.$(config.selector), config.parser);\n\n        if (value !== undefined) {\n          accum[key] = value;\n        }\n\n        return accum;\n      }, {});\n    }\n    /**\n     * Sets text track settings from an object of values.\n     *\n     * @param {Object} values\n     *        An object with config values parsed from the DOM or localStorage.\n     */\n    ;\n\n    _proto.setValues = function setValues(values) {\n      var _this4 = this;\n\n      each(selectConfigs, function (config, key) {\n        setSelectedOption(_this4.$(config.selector), values[key], config.parser);\n      });\n    }\n    /**\n     * Sets all `<select>` elements to their default values.\n     */\n    ;\n\n    _proto.setDefaults = function setDefaults() {\n      var _this5 = this;\n\n      each(selectConfigs, function (config) {\n        var index = config.hasOwnProperty('default') ? config[\"default\"] : 0;\n        _this5.$(config.selector).selectedIndex = index;\n      });\n    }\n    /**\n     * Restore texttrack settings from localStorage\n     */\n    ;\n\n    _proto.restoreSettings = function restoreSettings() {\n      var values;\n\n      try {\n        values = JSON.parse(window.localStorage.getItem(LOCAL_STORAGE_KEY$1));\n      } catch (err) {\n        log$1.warn(err);\n      }\n\n      if (values) {\n        this.setValues(values);\n      }\n    }\n    /**\n     * Save text track settings to localStorage\n     */\n    ;\n\n    _proto.saveSettings = function saveSettings() {\n      if (!this.options_.persistTextTrackSettings) {\n        return;\n      }\n\n      var values = this.getValues();\n\n      try {\n        if (Object.keys(values).length) {\n          window.localStorage.setItem(LOCAL_STORAGE_KEY$1, JSON.stringify(values));\n        } else {\n          window.localStorage.removeItem(LOCAL_STORAGE_KEY$1);\n        }\n      } catch (err) {\n        log$1.warn(err);\n      }\n    }\n    /**\n     * Update display of text track settings\n     */\n    ;\n\n    _proto.updateDisplay = function updateDisplay() {\n      var ttDisplay = this.player_.getChild('textTrackDisplay');\n\n      if (ttDisplay) {\n        ttDisplay.updateDisplay();\n      }\n    }\n    /**\n     * conditionally blur the element and refocus the captions button\n     *\n     * @private\n     */\n    ;\n\n    _proto.conditionalBlur_ = function conditionalBlur_() {\n      this.previouslyActiveEl_ = null;\n      var cb = this.player_.controlBar;\n      var subsCapsBtn = cb && cb.subsCapsButton;\n      var ccBtn = cb && cb.captionsButton;\n\n      if (subsCapsBtn) {\n        subsCapsBtn.focus();\n      } else if (ccBtn) {\n        ccBtn.focus();\n      }\n    };\n\n    return TextTrackSettings;\n  }(ModalDialog);\n\n  Component$1.registerComponent('TextTrackSettings', TextTrackSettings);\n\n  /**\n   * A Resize Manager. It is in charge of triggering `playerresize` on the player in the right conditions.\n   *\n   * It'll either create an iframe and use a debounced resize handler on it or use the new {@link https://wicg.github.io/ResizeObserver/|ResizeObserver}.\n   *\n   * If the ResizeObserver is available natively, it will be used. A polyfill can be passed in as an option.\n   * If a `playerresize` event is not needed, the ResizeManager component can be removed from the player, see the example below.\n   * @example <caption>How to disable the resize manager</caption>\n   * const player = videojs('#vid', {\n   *   resizeManager: false\n   * });\n   *\n   * @see {@link https://wicg.github.io/ResizeObserver/|ResizeObserver specification}\n   *\n   * @extends Component\n   */\n\n  var ResizeManager = /*#__PURE__*/function (_Component) {\n    inheritsLoose(ResizeManager, _Component);\n\n    /**\n     * Create the ResizeManager.\n     *\n     * @param {Object} player\n     *        The `Player` that this class should be attached to.\n     *\n     * @param {Object} [options]\n     *        The key/value store of ResizeManager options.\n     *\n     * @param {Object} [options.ResizeObserver]\n     *        A polyfill for ResizeObserver can be passed in here.\n     *        If this is set to null it will ignore the native ResizeObserver and fall back to the iframe fallback.\n     */\n    function ResizeManager(player, options) {\n      var _this;\n\n      var RESIZE_OBSERVER_AVAILABLE = options.ResizeObserver || window.ResizeObserver; // if `null` was passed, we want to disable the ResizeObserver\n\n      if (options.ResizeObserver === null) {\n        RESIZE_OBSERVER_AVAILABLE = false;\n      } // Only create an element when ResizeObserver isn't available\n\n\n      var options_ = mergeOptions$3({\n        createEl: !RESIZE_OBSERVER_AVAILABLE,\n        reportTouchActivity: false\n      }, options);\n      _this = _Component.call(this, player, options_) || this;\n      _this.ResizeObserver = options.ResizeObserver || window.ResizeObserver;\n      _this.loadListener_ = null;\n      _this.resizeObserver_ = null;\n      _this.debouncedHandler_ = debounce(function () {\n        _this.resizeHandler();\n      }, 100, false, assertThisInitialized(_this));\n\n      if (RESIZE_OBSERVER_AVAILABLE) {\n        _this.resizeObserver_ = new _this.ResizeObserver(_this.debouncedHandler_);\n\n        _this.resizeObserver_.observe(player.el());\n      } else {\n        _this.loadListener_ = function () {\n          if (!_this.el_ || !_this.el_.contentWindow) {\n            return;\n          }\n\n          var debouncedHandler_ = _this.debouncedHandler_;\n\n          var unloadListener_ = _this.unloadListener_ = function () {\n            off(this, 'resize', debouncedHandler_);\n            off(this, 'unload', unloadListener_);\n            unloadListener_ = null;\n          }; // safari and edge can unload the iframe before resizemanager dispose\n          // we have to dispose of event handlers correctly before that happens\n\n\n          on(_this.el_.contentWindow, 'unload', unloadListener_);\n          on(_this.el_.contentWindow, 'resize', debouncedHandler_);\n        };\n\n        _this.one('load', _this.loadListener_);\n      }\n\n      return _this;\n    }\n\n    var _proto = ResizeManager.prototype;\n\n    _proto.createEl = function createEl() {\n      return _Component.prototype.createEl.call(this, 'iframe', {\n        className: 'vjs-resize-manager',\n        tabIndex: -1,\n        title: this.localize('No content')\n      }, {\n        'aria-hidden': 'true'\n      });\n    }\n    /**\n     * Called when a resize is triggered on the iframe or a resize is observed via the ResizeObserver\n     *\n     * @fires Player#playerresize\n     */\n    ;\n\n    _proto.resizeHandler = function resizeHandler() {\n      /**\n       * Called when the player size has changed\n       *\n       * @event Player#playerresize\n       * @type {EventTarget~Event}\n       */\n      // make sure player is still around to trigger\n      // prevents this from causing an error after dispose\n      if (!this.player_ || !this.player_.trigger) {\n        return;\n      }\n\n      this.player_.trigger('playerresize');\n    };\n\n    _proto.dispose = function dispose() {\n      if (this.debouncedHandler_) {\n        this.debouncedHandler_.cancel();\n      }\n\n      if (this.resizeObserver_) {\n        if (this.player_.el()) {\n          this.resizeObserver_.unobserve(this.player_.el());\n        }\n\n        this.resizeObserver_.disconnect();\n      }\n\n      if (this.loadListener_) {\n        this.off('load', this.loadListener_);\n      }\n\n      if (this.el_ && this.el_.contentWindow && this.unloadListener_) {\n        this.unloadListener_.call(this.el_.contentWindow);\n      }\n\n      this.ResizeObserver = null;\n      this.resizeObserver = null;\n      this.debouncedHandler_ = null;\n      this.loadListener_ = null;\n\n      _Component.prototype.dispose.call(this);\n    };\n\n    return ResizeManager;\n  }(Component$1);\n\n  Component$1.registerComponent('ResizeManager', ResizeManager);\n\n  var defaults = {\n    trackingThreshold: 20,\n    liveTolerance: 15\n  };\n  /*\n    track when we are at the live edge, and other helpers for live playback */\n\n  /**\n   * A class for checking live current time and determining when the player\n   * is at or behind the live edge.\n   */\n\n  var LiveTracker = /*#__PURE__*/function (_Component) {\n    inheritsLoose(LiveTracker, _Component);\n\n    /**\n     * Creates an instance of this class.\n     *\n     * @param {Player} player\n     *        The `Player` that this class should be attached to.\n     *\n     * @param {Object} [options]\n     *        The key/value store of player options.\n     *\n     * @param {number} [options.trackingThreshold=20]\n     *        Number of seconds of live window (seekableEnd - seekableStart) that\n     *        media needs to have before the liveui will be shown.\n     *\n     * @param {number} [options.liveTolerance=15]\n     *        Number of seconds behind live that we have to be\n     *        before we will be considered non-live. Note that this will only\n     *        be used when playing at the live edge. This allows large seekable end\n     *        changes to not effect wether we are live or not.\n     */\n    function LiveTracker(player, options) {\n      var _this;\n\n      // LiveTracker does not need an element\n      var options_ = mergeOptions$3(defaults, options, {\n        createEl: false\n      });\n      _this = _Component.call(this, player, options_) || this;\n\n      _this.handleVisibilityChange_ = function (e) {\n        return _this.handleVisibilityChange(e);\n      };\n\n      _this.trackLiveHandler_ = function () {\n        return _this.trackLive_();\n      };\n\n      _this.handlePlay_ = function (e) {\n        return _this.handlePlay(e);\n      };\n\n      _this.handleFirstTimeupdate_ = function (e) {\n        return _this.handleFirstTimeupdate(e);\n      };\n\n      _this.handleSeeked_ = function (e) {\n        return _this.handleSeeked(e);\n      };\n\n      _this.seekToLiveEdge_ = function (e) {\n        return _this.seekToLiveEdge(e);\n      };\n\n      _this.reset_();\n\n      _this.on(_this.player_, 'durationchange', function (e) {\n        return _this.handleDurationchange(e);\n      }); // we should try to toggle tracking on canplay as native playback engines, like Safari\n      // may not have the proper values for things like seekableEnd until then\n\n\n      _this.on(_this.player_, 'canplay', function () {\n        return _this.toggleTracking();\n      }); // we don't need to track live playback if the document is hidden,\n      // also, tracking when the document is hidden can\n      // cause the CPU to spike and eventually crash the page on IE11.\n\n\n      if (IE_VERSION && 'hidden' in document && 'visibilityState' in document) {\n        _this.on(document, 'visibilitychange', _this.handleVisibilityChange_);\n      }\n\n      return _this;\n    }\n    /**\n     * toggle tracking based on document visiblility\n     */\n\n\n    var _proto = LiveTracker.prototype;\n\n    _proto.handleVisibilityChange = function handleVisibilityChange() {\n      if (this.player_.duration() !== Infinity) {\n        return;\n      }\n\n      if (document.hidden) {\n        this.stopTracking();\n      } else {\n        this.startTracking();\n      }\n    }\n    /**\n     * all the functionality for tracking when seek end changes\n     * and for tracking how far past seek end we should be\n     */\n    ;\n\n    _proto.trackLive_ = function trackLive_() {\n      var seekable = this.player_.seekable(); // skip undefined seekable\n\n      if (!seekable || !seekable.length) {\n        return;\n      }\n\n      var newTime = Number(window.performance.now().toFixed(4));\n      var deltaTime = this.lastTime_ === -1 ? 0 : (newTime - this.lastTime_) / 1000;\n      this.lastTime_ = newTime;\n      this.pastSeekEnd_ = this.pastSeekEnd() + deltaTime;\n      var liveCurrentTime = this.liveCurrentTime();\n      var currentTime = this.player_.currentTime(); // we are behind live if any are true\n      // 1. the player is paused\n      // 2. the user seeked to a location 2 seconds away from live\n      // 3. the difference between live and current time is greater\n      //    liveTolerance which defaults to 15s\n\n      var isBehind = this.player_.paused() || this.seekedBehindLive_ || Math.abs(liveCurrentTime - currentTime) > this.options_.liveTolerance; // we cannot be behind if\n      // 1. until we have not seen a timeupdate yet\n      // 2. liveCurrentTime is Infinity, which happens on Android and Native Safari\n\n      if (!this.timeupdateSeen_ || liveCurrentTime === Infinity) {\n        isBehind = false;\n      }\n\n      if (isBehind !== this.behindLiveEdge_) {\n        this.behindLiveEdge_ = isBehind;\n        this.trigger('liveedgechange');\n      }\n    }\n    /**\n     * handle a durationchange event on the player\n     * and start/stop tracking accordingly.\n     */\n    ;\n\n    _proto.handleDurationchange = function handleDurationchange() {\n      this.toggleTracking();\n    }\n    /**\n     * start/stop tracking\n     */\n    ;\n\n    _proto.toggleTracking = function toggleTracking() {\n      if (this.player_.duration() === Infinity && this.liveWindow() >= this.options_.trackingThreshold) {\n        if (this.player_.options_.liveui) {\n          this.player_.addClass('vjs-liveui');\n        }\n\n        this.startTracking();\n      } else {\n        this.player_.removeClass('vjs-liveui');\n        this.stopTracking();\n      }\n    }\n    /**\n     * start tracking live playback\n     */\n    ;\n\n    _proto.startTracking = function startTracking() {\n      if (this.isTracking()) {\n        return;\n      } // If we haven't seen a timeupdate, we need to check whether playback\n      // began before this component started tracking. This can happen commonly\n      // when using autoplay.\n\n\n      if (!this.timeupdateSeen_) {\n        this.timeupdateSeen_ = this.player_.hasStarted();\n      }\n\n      this.trackingInterval_ = this.setInterval(this.trackLiveHandler_, UPDATE_REFRESH_INTERVAL);\n      this.trackLive_();\n      this.on(this.player_, ['play', 'pause'], this.trackLiveHandler_);\n\n      if (!this.timeupdateSeen_) {\n        this.one(this.player_, 'play', this.handlePlay_);\n        this.one(this.player_, 'timeupdate', this.handleFirstTimeupdate_);\n      } else {\n        this.on(this.player_, 'seeked', this.handleSeeked_);\n      }\n    }\n    /**\n     * handle the first timeupdate on the player if it wasn't already playing\n     * when live tracker started tracking.\n     */\n    ;\n\n    _proto.handleFirstTimeupdate = function handleFirstTimeupdate() {\n      this.timeupdateSeen_ = true;\n      this.on(this.player_, 'seeked', this.handleSeeked_);\n    }\n    /**\n     * Keep track of what time a seek starts, and listen for seeked\n     * to find where a seek ends.\n     */\n    ;\n\n    _proto.handleSeeked = function handleSeeked() {\n      var timeDiff = Math.abs(this.liveCurrentTime() - this.player_.currentTime());\n      this.seekedBehindLive_ = this.nextSeekedFromUser_ && timeDiff > 2;\n      this.nextSeekedFromUser_ = false;\n      this.trackLive_();\n    }\n    /**\n     * handle the first play on the player, and make sure that we seek\n     * right to the live edge.\n     */\n    ;\n\n    _proto.handlePlay = function handlePlay() {\n      this.one(this.player_, 'timeupdate', this.seekToLiveEdge_);\n    }\n    /**\n     * Stop tracking, and set all internal variables to\n     * their initial value.\n     */\n    ;\n\n    _proto.reset_ = function reset_() {\n      this.lastTime_ = -1;\n      this.pastSeekEnd_ = 0;\n      this.lastSeekEnd_ = -1;\n      this.behindLiveEdge_ = true;\n      this.timeupdateSeen_ = false;\n      this.seekedBehindLive_ = false;\n      this.nextSeekedFromUser_ = false;\n      this.clearInterval(this.trackingInterval_);\n      this.trackingInterval_ = null;\n      this.off(this.player_, ['play', 'pause'], this.trackLiveHandler_);\n      this.off(this.player_, 'seeked', this.handleSeeked_);\n      this.off(this.player_, 'play', this.handlePlay_);\n      this.off(this.player_, 'timeupdate', this.handleFirstTimeupdate_);\n      this.off(this.player_, 'timeupdate', this.seekToLiveEdge_);\n    }\n    /**\n     * The next seeked event is from the user. Meaning that any seek\n     * > 2s behind live will be considered behind live for real and\n     * liveTolerance will be ignored.\n     */\n    ;\n\n    _proto.nextSeekedFromUser = function nextSeekedFromUser() {\n      this.nextSeekedFromUser_ = true;\n    }\n    /**\n     * stop tracking live playback\n     */\n    ;\n\n    _proto.stopTracking = function stopTracking() {\n      if (!this.isTracking()) {\n        return;\n      }\n\n      this.reset_();\n      this.trigger('liveedgechange');\n    }\n    /**\n     * A helper to get the player seekable end\n     * so that we don't have to null check everywhere\n     *\n     * @return {number}\n     *         The furthest seekable end or Infinity.\n     */\n    ;\n\n    _proto.seekableEnd = function seekableEnd() {\n      var seekable = this.player_.seekable();\n      var seekableEnds = [];\n      var i = seekable ? seekable.length : 0;\n\n      while (i--) {\n        seekableEnds.push(seekable.end(i));\n      } // grab the furthest seekable end after sorting, or if there are none\n      // default to Infinity\n\n\n      return seekableEnds.length ? seekableEnds.sort()[seekableEnds.length - 1] : Infinity;\n    }\n    /**\n     * A helper to get the player seekable start\n     * so that we don't have to null check everywhere\n     *\n     * @return {number}\n     *         The earliest seekable start or 0.\n     */\n    ;\n\n    _proto.seekableStart = function seekableStart() {\n      var seekable = this.player_.seekable();\n      var seekableStarts = [];\n      var i = seekable ? seekable.length : 0;\n\n      while (i--) {\n        seekableStarts.push(seekable.start(i));\n      } // grab the first seekable start after sorting, or if there are none\n      // default to 0\n\n\n      return seekableStarts.length ? seekableStarts.sort()[0] : 0;\n    }\n    /**\n     * Get the live time window aka\n     * the amount of time between seekable start and\n     * live current time.\n     *\n     * @return {number}\n     *         The amount of seconds that are seekable in\n     *         the live video.\n     */\n    ;\n\n    _proto.liveWindow = function liveWindow() {\n      var liveCurrentTime = this.liveCurrentTime(); // if liveCurrenTime is Infinity then we don't have a liveWindow at all\n\n      if (liveCurrentTime === Infinity) {\n        return 0;\n      }\n\n      return liveCurrentTime - this.seekableStart();\n    }\n    /**\n     * Determines if the player is live, only checks if this component\n     * is tracking live playback or not\n     *\n     * @return {boolean}\n     *         Wether liveTracker is tracking\n     */\n    ;\n\n    _proto.isLive = function isLive() {\n      return this.isTracking();\n    }\n    /**\n     * Determines if currentTime is at the live edge and won't fall behind\n     * on each seekableendchange\n     *\n     * @return {boolean}\n     *         Wether playback is at the live edge\n     */\n    ;\n\n    _proto.atLiveEdge = function atLiveEdge() {\n      return !this.behindLiveEdge();\n    }\n    /**\n     * get what we expect the live current time to be\n     *\n     * @return {number}\n     *         The expected live current time\n     */\n    ;\n\n    _proto.liveCurrentTime = function liveCurrentTime() {\n      return this.pastSeekEnd() + this.seekableEnd();\n    }\n    /**\n     * The number of seconds that have occured after seekable end\n     * changed. This will be reset to 0 once seekable end changes.\n     *\n     * @return {number}\n     *         Seconds past the current seekable end\n     */\n    ;\n\n    _proto.pastSeekEnd = function pastSeekEnd() {\n      var seekableEnd = this.seekableEnd();\n\n      if (this.lastSeekEnd_ !== -1 && seekableEnd !== this.lastSeekEnd_) {\n        this.pastSeekEnd_ = 0;\n      }\n\n      this.lastSeekEnd_ = seekableEnd;\n      return this.pastSeekEnd_;\n    }\n    /**\n     * If we are currently behind the live edge, aka currentTime will be\n     * behind on a seekableendchange\n     *\n     * @return {boolean}\n     *         If we are behind the live edge\n     */\n    ;\n\n    _proto.behindLiveEdge = function behindLiveEdge() {\n      return this.behindLiveEdge_;\n    }\n    /**\n     * Wether live tracker is currently tracking or not.\n     */\n    ;\n\n    _proto.isTracking = function isTracking() {\n      return typeof this.trackingInterval_ === 'number';\n    }\n    /**\n     * Seek to the live edge if we are behind the live edge\n     */\n    ;\n\n    _proto.seekToLiveEdge = function seekToLiveEdge() {\n      this.seekedBehindLive_ = false;\n\n      if (this.atLiveEdge()) {\n        return;\n      }\n\n      this.nextSeekedFromUser_ = false;\n      this.player_.currentTime(this.liveCurrentTime());\n    }\n    /**\n     * Dispose of liveTracker\n     */\n    ;\n\n    _proto.dispose = function dispose() {\n      this.off(document, 'visibilitychange', this.handleVisibilityChange_);\n      this.stopTracking();\n\n      _Component.prototype.dispose.call(this);\n    };\n\n    return LiveTracker;\n  }(Component$1);\n\n  Component$1.registerComponent('LiveTracker', LiveTracker);\n\n  /**\n   * This function is used to fire a sourceset when there is something\n   * similar to `mediaEl.load()` being called. It will try to find the source via\n   * the `src` attribute and then the `<source>` elements. It will then fire `sourceset`\n   * with the source that was found or empty string if we cannot know. If it cannot\n   * find a source then `sourceset` will not be fired.\n   *\n   * @param {Html5} tech\n   *        The tech object that sourceset was setup on\n   *\n   * @return {boolean}\n   *         returns false if the sourceset was not fired and true otherwise.\n   */\n\n  var sourcesetLoad = function sourcesetLoad(tech) {\n    var el = tech.el(); // if `el.src` is set, that source will be loaded.\n\n    if (el.hasAttribute('src')) {\n      tech.triggerSourceset(el.src);\n      return true;\n    }\n    /**\n     * Since there isn't a src property on the media element, source elements will be used for\n     * implementing the source selection algorithm. This happens asynchronously and\n     * for most cases were there is more than one source we cannot tell what source will\n     * be loaded, without re-implementing the source selection algorithm. At this time we are not\n     * going to do that. There are three special cases that we do handle here though:\n     *\n     * 1. If there are no sources, do not fire `sourceset`.\n     * 2. If there is only one `<source>` with a `src` property/attribute that is our `src`\n     * 3. If there is more than one `<source>` but all of them have the same `src` url.\n     *    That will be our src.\n     */\n\n\n    var sources = tech.$$('source');\n    var srcUrls = [];\n    var src = ''; // if there are no sources, do not fire sourceset\n\n    if (!sources.length) {\n      return false;\n    } // only count valid/non-duplicate source elements\n\n\n    for (var i = 0; i < sources.length; i++) {\n      var url = sources[i].src;\n\n      if (url && srcUrls.indexOf(url) === -1) {\n        srcUrls.push(url);\n      }\n    } // there were no valid sources\n\n\n    if (!srcUrls.length) {\n      return false;\n    } // there is only one valid source element url\n    // use that\n\n\n    if (srcUrls.length === 1) {\n      src = srcUrls[0];\n    }\n\n    tech.triggerSourceset(src);\n    return true;\n  };\n  /**\n   * our implementation of an `innerHTML` descriptor for browsers\n   * that do not have one.\n   */\n\n\n  var innerHTMLDescriptorPolyfill = Object.defineProperty({}, 'innerHTML', {\n    get: function get() {\n      return this.cloneNode(true).innerHTML;\n    },\n    set: function set(v) {\n      // make a dummy node to use innerHTML on\n      var dummy = document.createElement(this.nodeName.toLowerCase()); // set innerHTML to the value provided\n\n      dummy.innerHTML = v; // make a document fragment to hold the nodes from dummy\n\n      var docFrag = document.createDocumentFragment(); // copy all of the nodes created by the innerHTML on dummy\n      // to the document fragment\n\n      while (dummy.childNodes.length) {\n        docFrag.appendChild(dummy.childNodes[0]);\n      } // remove content\n\n\n      this.innerText = ''; // now we add all of that html in one by appending the\n      // document fragment. This is how innerHTML does it.\n\n      window.Element.prototype.appendChild.call(this, docFrag); // then return the result that innerHTML's setter would\n\n      return this.innerHTML;\n    }\n  });\n  /**\n   * Get a property descriptor given a list of priorities and the\n   * property to get.\n   */\n\n  var getDescriptor = function getDescriptor(priority, prop) {\n    var descriptor = {};\n\n    for (var i = 0; i < priority.length; i++) {\n      descriptor = Object.getOwnPropertyDescriptor(priority[i], prop);\n\n      if (descriptor && descriptor.set && descriptor.get) {\n        break;\n      }\n    }\n\n    descriptor.enumerable = true;\n    descriptor.configurable = true;\n    return descriptor;\n  };\n\n  var getInnerHTMLDescriptor = function getInnerHTMLDescriptor(tech) {\n    return getDescriptor([tech.el(), window.HTMLMediaElement.prototype, window.Element.prototype, innerHTMLDescriptorPolyfill], 'innerHTML');\n  };\n  /**\n   * Patches browser internal functions so that we can tell synchronously\n   * if a `<source>` was appended to the media element. For some reason this\n   * causes a `sourceset` if the the media element is ready and has no source.\n   * This happens when:\n   * - The page has just loaded and the media element does not have a source.\n   * - The media element was emptied of all sources, then `load()` was called.\n   *\n   * It does this by patching the following functions/properties when they are supported:\n   *\n   * - `append()` - can be used to add a `<source>` element to the media element\n   * - `appendChild()` - can be used to add a `<source>` element to the media element\n   * - `insertAdjacentHTML()` -  can be used to add a `<source>` element to the media element\n   * - `innerHTML` -  can be used to add a `<source>` element to the media element\n   *\n   * @param {Html5} tech\n   *        The tech object that sourceset is being setup on.\n   */\n\n\n  var firstSourceWatch = function firstSourceWatch(tech) {\n    var el = tech.el(); // make sure firstSourceWatch isn't setup twice.\n\n    if (el.resetSourceWatch_) {\n      return;\n    }\n\n    var old = {};\n    var innerDescriptor = getInnerHTMLDescriptor(tech);\n\n    var appendWrapper = function appendWrapper(appendFn) {\n      return function () {\n        for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {\n          args[_key] = arguments[_key];\n        }\n\n        var retval = appendFn.apply(el, args);\n        sourcesetLoad(tech);\n        return retval;\n      };\n    };\n\n    ['append', 'appendChild', 'insertAdjacentHTML'].forEach(function (k) {\n      if (!el[k]) {\n        return;\n      } // store the old function\n\n\n      old[k] = el[k]; // call the old function with a sourceset if a source\n      // was loaded\n\n      el[k] = appendWrapper(old[k]);\n    });\n    Object.defineProperty(el, 'innerHTML', mergeOptions$3(innerDescriptor, {\n      set: appendWrapper(innerDescriptor.set)\n    }));\n\n    el.resetSourceWatch_ = function () {\n      el.resetSourceWatch_ = null;\n      Object.keys(old).forEach(function (k) {\n        el[k] = old[k];\n      });\n      Object.defineProperty(el, 'innerHTML', innerDescriptor);\n    }; // on the first sourceset, we need to revert our changes\n\n\n    tech.one('sourceset', el.resetSourceWatch_);\n  };\n  /**\n   * our implementation of a `src` descriptor for browsers\n   * that do not have one.\n   */\n\n\n  var srcDescriptorPolyfill = Object.defineProperty({}, 'src', {\n    get: function get() {\n      if (this.hasAttribute('src')) {\n        return getAbsoluteURL(window.Element.prototype.getAttribute.call(this, 'src'));\n      }\n\n      return '';\n    },\n    set: function set(v) {\n      window.Element.prototype.setAttribute.call(this, 'src', v);\n      return v;\n    }\n  });\n\n  var getSrcDescriptor = function getSrcDescriptor(tech) {\n    return getDescriptor([tech.el(), window.HTMLMediaElement.prototype, srcDescriptorPolyfill], 'src');\n  };\n  /**\n   * setup `sourceset` handling on the `Html5` tech. This function\n   * patches the following element properties/functions:\n   *\n   * - `src` - to determine when `src` is set\n   * - `setAttribute()` - to determine when `src` is set\n   * - `load()` - this re-triggers the source selection algorithm, and can\n   *              cause a sourceset.\n   *\n   * If there is no source when we are adding `sourceset` support or during a `load()`\n   * we also patch the functions listed in `firstSourceWatch`.\n   *\n   * @param {Html5} tech\n   *        The tech to patch\n   */\n\n\n  var setupSourceset = function setupSourceset(tech) {\n    if (!tech.featuresSourceset) {\n      return;\n    }\n\n    var el = tech.el(); // make sure sourceset isn't setup twice.\n\n    if (el.resetSourceset_) {\n      return;\n    }\n\n    var srcDescriptor = getSrcDescriptor(tech);\n    var oldSetAttribute = el.setAttribute;\n    var oldLoad = el.load;\n    Object.defineProperty(el, 'src', mergeOptions$3(srcDescriptor, {\n      set: function set(v) {\n        var retval = srcDescriptor.set.call(el, v); // we use the getter here to get the actual value set on src\n\n        tech.triggerSourceset(el.src);\n        return retval;\n      }\n    }));\n\n    el.setAttribute = function (n, v) {\n      var retval = oldSetAttribute.call(el, n, v);\n\n      if (/src/i.test(n)) {\n        tech.triggerSourceset(el.src);\n      }\n\n      return retval;\n    };\n\n    el.load = function () {\n      var retval = oldLoad.call(el); // if load was called, but there was no source to fire\n      // sourceset on. We have to watch for a source append\n      // as that can trigger a `sourceset` when the media element\n      // has no source\n\n      if (!sourcesetLoad(tech)) {\n        tech.triggerSourceset('');\n        firstSourceWatch(tech);\n      }\n\n      return retval;\n    };\n\n    if (el.currentSrc) {\n      tech.triggerSourceset(el.currentSrc);\n    } else if (!sourcesetLoad(tech)) {\n      firstSourceWatch(tech);\n    }\n\n    el.resetSourceset_ = function () {\n      el.resetSourceset_ = null;\n      el.load = oldLoad;\n      el.setAttribute = oldSetAttribute;\n      Object.defineProperty(el, 'src', srcDescriptor);\n\n      if (el.resetSourceWatch_) {\n        el.resetSourceWatch_();\n      }\n    };\n  };\n\n  /**\n   * Object.defineProperty but \"lazy\", which means that the value is only set after\n   * it retrieved the first time, rather than being set right away.\n   *\n   * @param {Object} obj the object to set the property on\n   * @param {string} key the key for the property to set\n   * @param {Function} getValue the function used to get the value when it is needed.\n   * @param {boolean} setter wether a setter shoould be allowed or not\n   */\n  var defineLazyProperty = function defineLazyProperty(obj, key, getValue, setter) {\n    if (setter === void 0) {\n      setter = true;\n    }\n\n    var set = function set(value) {\n      return Object.defineProperty(obj, key, {\n        value: value,\n        enumerable: true,\n        writable: true\n      });\n    };\n\n    var options = {\n      configurable: true,\n      enumerable: true,\n      get: function get() {\n        var value = getValue();\n        set(value);\n        return value;\n      }\n    };\n\n    if (setter) {\n      options.set = set;\n    }\n\n    return Object.defineProperty(obj, key, options);\n  };\n\n  /**\n   * HTML5 Media Controller - Wrapper for HTML5 Media API\n   *\n   * @mixes Tech~SourceHandlerAdditions\n   * @extends Tech\n   */\n\n  var Html5 = /*#__PURE__*/function (_Tech) {\n    inheritsLoose(Html5, _Tech);\n\n    /**\n    * Create an instance of this Tech.\n    *\n    * @param {Object} [options]\n    *        The key/value store of player options.\n    *\n    * @param {Component~ReadyCallback} ready\n    *        Callback function to call when the `HTML5` Tech is ready.\n    */\n    function Html5(options, ready) {\n      var _this;\n\n      _this = _Tech.call(this, options, ready) || this;\n      var source = options.source;\n      var crossoriginTracks = false;\n      _this.featuresVideoFrameCallback = _this.featuresVideoFrameCallback && _this.el_.tagName === 'VIDEO'; // Set the source if one is provided\n      // 1) Check if the source is new (if not, we want to keep the original so playback isn't interrupted)\n      // 2) Check to see if the network state of the tag was failed at init, and if so, reset the source\n      // anyway so the error gets fired.\n\n      if (source && (_this.el_.currentSrc !== source.src || options.tag && options.tag.initNetworkState_ === 3)) {\n        _this.setSource(source);\n      } else {\n        _this.handleLateInit_(_this.el_);\n      } // setup sourceset after late sourceset/init\n\n\n      if (options.enableSourceset) {\n        _this.setupSourcesetHandling_();\n      }\n\n      _this.isScrubbing_ = false;\n\n      if (_this.el_.hasChildNodes()) {\n        var nodes = _this.el_.childNodes;\n        var nodesLength = nodes.length;\n        var removeNodes = [];\n\n        while (nodesLength--) {\n          var node = nodes[nodesLength];\n          var nodeName = node.nodeName.toLowerCase();\n\n          if (nodeName === 'track') {\n            if (!_this.featuresNativeTextTracks) {\n              // Empty video tag tracks so the built-in player doesn't use them also.\n              // This may not be fast enough to stop HTML5 browsers from reading the tags\n              // so we'll need to turn off any default tracks if we're manually doing\n              // captions and subtitles. videoElement.textTracks\n              removeNodes.push(node);\n            } else {\n              // store HTMLTrackElement and TextTrack to remote list\n              _this.remoteTextTrackEls().addTrackElement_(node);\n\n              _this.remoteTextTracks().addTrack(node.track);\n\n              _this.textTracks().addTrack(node.track);\n\n              if (!crossoriginTracks && !_this.el_.hasAttribute('crossorigin') && isCrossOrigin(node.src)) {\n                crossoriginTracks = true;\n              }\n            }\n          }\n        }\n\n        for (var i = 0; i < removeNodes.length; i++) {\n          _this.el_.removeChild(removeNodes[i]);\n        }\n      }\n\n      _this.proxyNativeTracks_();\n\n      if (_this.featuresNativeTextTracks && crossoriginTracks) {\n        log$1.warn('Text Tracks are being loaded from another origin but the crossorigin attribute isn\\'t used.\\n' + 'This may prevent text tracks from loading.');\n      } // prevent iOS Safari from disabling metadata text tracks during native playback\n\n\n      _this.restoreMetadataTracksInIOSNativePlayer_(); // Determine if native controls should be used\n      // Our goal should be to get the custom controls on mobile solid everywhere\n      // so we can remove this all together. Right now this will block custom\n      // controls on touch enabled laptops like the Chrome Pixel\n\n\n      if ((TOUCH_ENABLED || IS_IPHONE || IS_NATIVE_ANDROID) && options.nativeControlsForTouch === true) {\n        _this.setControls(true);\n      } // on iOS, we want to proxy `webkitbeginfullscreen` and `webkitendfullscreen`\n      // into a `fullscreenchange` event\n\n\n      _this.proxyWebkitFullscreen_();\n\n      _this.triggerReady();\n\n      return _this;\n    }\n    /**\n     * Dispose of `HTML5` media element and remove all tracks.\n     */\n\n\n    var _proto = Html5.prototype;\n\n    _proto.dispose = function dispose() {\n      if (this.el_ && this.el_.resetSourceset_) {\n        this.el_.resetSourceset_();\n      }\n\n      Html5.disposeMediaElement(this.el_);\n      this.options_ = null; // tech will handle clearing of the emulated track list\n\n      _Tech.prototype.dispose.call(this);\n    }\n    /**\n     * Modify the media element so that we can detect when\n     * the source is changed. Fires `sourceset` just after the source has changed\n     */\n    ;\n\n    _proto.setupSourcesetHandling_ = function setupSourcesetHandling_() {\n      setupSourceset(this);\n    }\n    /**\n     * When a captions track is enabled in the iOS Safari native player, all other\n     * tracks are disabled (including metadata tracks), which nulls all of their\n     * associated cue points. This will restore metadata tracks to their pre-fullscreen\n     * state in those cases so that cue points are not needlessly lost.\n     *\n     * @private\n     */\n    ;\n\n    _proto.restoreMetadataTracksInIOSNativePlayer_ = function restoreMetadataTracksInIOSNativePlayer_() {\n      var textTracks = this.textTracks();\n      var metadataTracksPreFullscreenState; // captures a snapshot of every metadata track's current state\n\n      var takeMetadataTrackSnapshot = function takeMetadataTrackSnapshot() {\n        metadataTracksPreFullscreenState = [];\n\n        for (var i = 0; i < textTracks.length; i++) {\n          var track = textTracks[i];\n\n          if (track.kind === 'metadata') {\n            metadataTracksPreFullscreenState.push({\n              track: track,\n              storedMode: track.mode\n            });\n          }\n        }\n      }; // snapshot each metadata track's initial state, and update the snapshot\n      // each time there is a track 'change' event\n\n\n      takeMetadataTrackSnapshot();\n      textTracks.addEventListener('change', takeMetadataTrackSnapshot);\n      this.on('dispose', function () {\n        return textTracks.removeEventListener('change', takeMetadataTrackSnapshot);\n      });\n\n      var restoreTrackMode = function restoreTrackMode() {\n        for (var i = 0; i < metadataTracksPreFullscreenState.length; i++) {\n          var storedTrack = metadataTracksPreFullscreenState[i];\n\n          if (storedTrack.track.mode === 'disabled' && storedTrack.track.mode !== storedTrack.storedMode) {\n            storedTrack.track.mode = storedTrack.storedMode;\n          }\n        } // we only want this handler to be executed on the first 'change' event\n\n\n        textTracks.removeEventListener('change', restoreTrackMode);\n      }; // when we enter fullscreen playback, stop updating the snapshot and\n      // restore all track modes to their pre-fullscreen state\n\n\n      this.on('webkitbeginfullscreen', function () {\n        textTracks.removeEventListener('change', takeMetadataTrackSnapshot); // remove the listener before adding it just in case it wasn't previously removed\n\n        textTracks.removeEventListener('change', restoreTrackMode);\n        textTracks.addEventListener('change', restoreTrackMode);\n      }); // start updating the snapshot again after leaving fullscreen\n\n      this.on('webkitendfullscreen', function () {\n        // remove the listener before adding it just in case it wasn't previously removed\n        textTracks.removeEventListener('change', takeMetadataTrackSnapshot);\n        textTracks.addEventListener('change', takeMetadataTrackSnapshot); // remove the restoreTrackMode handler in case it wasn't triggered during fullscreen playback\n\n        textTracks.removeEventListener('change', restoreTrackMode);\n      });\n    }\n    /**\n     * Attempt to force override of tracks for the given type\n     *\n     * @param {string} type - Track type to override, possible values include 'Audio',\n     * 'Video', and 'Text'.\n     * @param {boolean} override - If set to true native audio/video will be overridden,\n     * otherwise native audio/video will potentially be used.\n     * @private\n     */\n    ;\n\n    _proto.overrideNative_ = function overrideNative_(type, override) {\n      var _this2 = this;\n\n      // If there is no behavioral change don't add/remove listeners\n      if (override !== this[\"featuresNative\" + type + \"Tracks\"]) {\n        return;\n      }\n\n      var lowerCaseType = type.toLowerCase();\n\n      if (this[lowerCaseType + \"TracksListeners_\"]) {\n        Object.keys(this[lowerCaseType + \"TracksListeners_\"]).forEach(function (eventName) {\n          var elTracks = _this2.el()[lowerCaseType + \"Tracks\"];\n\n          elTracks.removeEventListener(eventName, _this2[lowerCaseType + \"TracksListeners_\"][eventName]);\n        });\n      }\n\n      this[\"featuresNative\" + type + \"Tracks\"] = !override;\n      this[lowerCaseType + \"TracksListeners_\"] = null;\n      this.proxyNativeTracksForType_(lowerCaseType);\n    }\n    /**\n     * Attempt to force override of native audio tracks.\n     *\n     * @param {boolean} override - If set to true native audio will be overridden,\n     * otherwise native audio will potentially be used.\n     */\n    ;\n\n    _proto.overrideNativeAudioTracks = function overrideNativeAudioTracks(override) {\n      this.overrideNative_('Audio', override);\n    }\n    /**\n     * Attempt to force override of native video tracks.\n     *\n     * @param {boolean} override - If set to true native video will be overridden,\n     * otherwise native video will potentially be used.\n     */\n    ;\n\n    _proto.overrideNativeVideoTracks = function overrideNativeVideoTracks(override) {\n      this.overrideNative_('Video', override);\n    }\n    /**\n     * Proxy native track list events for the given type to our track\n     * lists if the browser we are playing in supports that type of track list.\n     *\n     * @param {string} name - Track type; values include 'audio', 'video', and 'text'\n     * @private\n     */\n    ;\n\n    _proto.proxyNativeTracksForType_ = function proxyNativeTracksForType_(name) {\n      var _this3 = this;\n\n      var props = NORMAL[name];\n      var elTracks = this.el()[props.getterName];\n      var techTracks = this[props.getterName]();\n\n      if (!this[\"featuresNative\" + props.capitalName + \"Tracks\"] || !elTracks || !elTracks.addEventListener) {\n        return;\n      }\n\n      var listeners = {\n        change: function change(e) {\n          var event = {\n            type: 'change',\n            target: techTracks,\n            currentTarget: techTracks,\n            srcElement: techTracks\n          };\n          techTracks.trigger(event); // if we are a text track change event, we should also notify the\n          // remote text track list. This can potentially cause a false positive\n          // if we were to get a change event on a non-remote track and\n          // we triggered the event on the remote text track list which doesn't\n          // contain that track. However, best practices mean looping through the\n          // list of tracks and searching for the appropriate mode value, so,\n          // this shouldn't pose an issue\n\n          if (name === 'text') {\n            _this3[REMOTE.remoteText.getterName]().trigger(event);\n          }\n        },\n        addtrack: function addtrack(e) {\n          techTracks.addTrack(e.track);\n        },\n        removetrack: function removetrack(e) {\n          techTracks.removeTrack(e.track);\n        }\n      };\n\n      var removeOldTracks = function removeOldTracks() {\n        var removeTracks = [];\n\n        for (var i = 0; i < techTracks.length; i++) {\n          var found = false;\n\n          for (var j = 0; j < elTracks.length; j++) {\n            if (elTracks[j] === techTracks[i]) {\n              found = true;\n              break;\n            }\n          }\n\n          if (!found) {\n            removeTracks.push(techTracks[i]);\n          }\n        }\n\n        while (removeTracks.length) {\n          techTracks.removeTrack(removeTracks.shift());\n        }\n      };\n\n      this[props.getterName + 'Listeners_'] = listeners;\n      Object.keys(listeners).forEach(function (eventName) {\n        var listener = listeners[eventName];\n        elTracks.addEventListener(eventName, listener);\n\n        _this3.on('dispose', function (e) {\n          return elTracks.removeEventListener(eventName, listener);\n        });\n      }); // Remove (native) tracks that are not used anymore\n\n      this.on('loadstart', removeOldTracks);\n      this.on('dispose', function (e) {\n        return _this3.off('loadstart', removeOldTracks);\n      });\n    }\n    /**\n     * Proxy all native track list events to our track lists if the browser we are playing\n     * in supports that type of track list.\n     *\n     * @private\n     */\n    ;\n\n    _proto.proxyNativeTracks_ = function proxyNativeTracks_() {\n      var _this4 = this;\n\n      NORMAL.names.forEach(function (name) {\n        _this4.proxyNativeTracksForType_(name);\n      });\n    }\n    /**\n     * Create the `Html5` Tech's DOM element.\n     *\n     * @return {Element}\n     *         The element that gets created.\n     */\n    ;\n\n    _proto.createEl = function createEl() {\n      var el = this.options_.tag; // Check if this browser supports moving the element into the box.\n      // On the iPhone video will break if you move the element,\n      // So we have to create a brand new element.\n      // If we ingested the player div, we do not need to move the media element.\n\n      if (!el || !(this.options_.playerElIngest || this.movingMediaElementInDOM)) {\n        // If the original tag is still there, clone and remove it.\n        if (el) {\n          var clone = el.cloneNode(true);\n\n          if (el.parentNode) {\n            el.parentNode.insertBefore(clone, el);\n          }\n\n          Html5.disposeMediaElement(el);\n          el = clone;\n        } else {\n          el = document.createElement('video'); // determine if native controls should be used\n\n          var tagAttributes = this.options_.tag && getAttributes(this.options_.tag);\n          var attributes = mergeOptions$3({}, tagAttributes);\n\n          if (!TOUCH_ENABLED || this.options_.nativeControlsForTouch !== true) {\n            delete attributes.controls;\n          }\n\n          setAttributes(el, assign(attributes, {\n            id: this.options_.techId,\n            \"class\": 'vjs-tech'\n          }));\n        }\n\n        el.playerId = this.options_.playerId;\n      }\n\n      if (typeof this.options_.preload !== 'undefined') {\n        setAttribute(el, 'preload', this.options_.preload);\n      }\n\n      if (this.options_.disablePictureInPicture !== undefined) {\n        el.disablePictureInPicture = this.options_.disablePictureInPicture;\n      } // Update specific tag settings, in case they were overridden\n      // `autoplay` has to be *last* so that `muted` and `playsinline` are present\n      // when iOS/Safari or other browsers attempt to autoplay.\n\n\n      var settingsAttrs = ['loop', 'muted', 'playsinline', 'autoplay'];\n\n      for (var i = 0; i < settingsAttrs.length; i++) {\n        var attr = settingsAttrs[i];\n        var value = this.options_[attr];\n\n        if (typeof value !== 'undefined') {\n          if (value) {\n            setAttribute(el, attr, attr);\n          } else {\n            removeAttribute(el, attr);\n          }\n\n          el[attr] = value;\n        }\n      }\n\n      return el;\n    }\n    /**\n     * This will be triggered if the loadstart event has already fired, before videojs was\n     * ready. Two known examples of when this can happen are:\n     * 1. If we're loading the playback object after it has started loading\n     * 2. The media is already playing the (often with autoplay on) then\n     *\n     * This function will fire another loadstart so that videojs can catchup.\n     *\n     * @fires Tech#loadstart\n     *\n     * @return {undefined}\n     *         returns nothing.\n     */\n    ;\n\n    _proto.handleLateInit_ = function handleLateInit_(el) {\n      if (el.networkState === 0 || el.networkState === 3) {\n        // The video element hasn't started loading the source yet\n        // or didn't find a source\n        return;\n      }\n\n      if (el.readyState === 0) {\n        // NetworkState is set synchronously BUT loadstart is fired at the\n        // end of the current stack, usually before setInterval(fn, 0).\n        // So at this point we know loadstart may have already fired or is\n        // about to fire, and either way the player hasn't seen it yet.\n        // We don't want to fire loadstart prematurely here and cause a\n        // double loadstart so we'll wait and see if it happens between now\n        // and the next loop, and fire it if not.\n        // HOWEVER, we also want to make sure it fires before loadedmetadata\n        // which could also happen between now and the next loop, so we'll\n        // watch for that also.\n        var loadstartFired = false;\n\n        var setLoadstartFired = function setLoadstartFired() {\n          loadstartFired = true;\n        };\n\n        this.on('loadstart', setLoadstartFired);\n\n        var triggerLoadstart = function triggerLoadstart() {\n          // We did miss the original loadstart. Make sure the player\n          // sees loadstart before loadedmetadata\n          if (!loadstartFired) {\n            this.trigger('loadstart');\n          }\n        };\n\n        this.on('loadedmetadata', triggerLoadstart);\n        this.ready(function () {\n          this.off('loadstart', setLoadstartFired);\n          this.off('loadedmetadata', triggerLoadstart);\n\n          if (!loadstartFired) {\n            // We did miss the original native loadstart. Fire it now.\n            this.trigger('loadstart');\n          }\n        });\n        return;\n      } // From here on we know that loadstart already fired and we missed it.\n      // The other readyState events aren't as much of a problem if we double\n      // them, so not going to go to as much trouble as loadstart to prevent\n      // that unless we find reason to.\n\n\n      var eventsToTrigger = ['loadstart']; // loadedmetadata: newly equal to HAVE_METADATA (1) or greater\n\n      eventsToTrigger.push('loadedmetadata'); // loadeddata: newly increased to HAVE_CURRENT_DATA (2) or greater\n\n      if (el.readyState >= 2) {\n        eventsToTrigger.push('loadeddata');\n      } // canplay: newly increased to HAVE_FUTURE_DATA (3) or greater\n\n\n      if (el.readyState >= 3) {\n        eventsToTrigger.push('canplay');\n      } // canplaythrough: newly equal to HAVE_ENOUGH_DATA (4)\n\n\n      if (el.readyState >= 4) {\n        eventsToTrigger.push('canplaythrough');\n      } // We still need to give the player time to add event listeners\n\n\n      this.ready(function () {\n        eventsToTrigger.forEach(function (type) {\n          this.trigger(type);\n        }, this);\n      });\n    }\n    /**\n     * Set whether we are scrubbing or not.\n     * This is used to decide whether we should use `fastSeek` or not.\n     * `fastSeek` is used to provide trick play on Safari browsers.\n     *\n     * @param {boolean} isScrubbing\n     *                  - true for we are currently scrubbing\n     *                  - false for we are no longer scrubbing\n     */\n    ;\n\n    _proto.setScrubbing = function setScrubbing(isScrubbing) {\n      this.isScrubbing_ = isScrubbing;\n    }\n    /**\n     * Get whether we are scrubbing or not.\n     *\n     * @return {boolean} isScrubbing\n     *                  - true for we are currently scrubbing\n     *                  - false for we are no longer scrubbing\n     */\n    ;\n\n    _proto.scrubbing = function scrubbing() {\n      return this.isScrubbing_;\n    }\n    /**\n     * Set current time for the `HTML5` tech.\n     *\n     * @param {number} seconds\n     *        Set the current time of the media to this.\n     */\n    ;\n\n    _proto.setCurrentTime = function setCurrentTime(seconds) {\n      try {\n        if (this.isScrubbing_ && this.el_.fastSeek && IS_ANY_SAFARI) {\n          this.el_.fastSeek(seconds);\n        } else {\n          this.el_.currentTime = seconds;\n        }\n      } catch (e) {\n        log$1(e, 'Video is not ready. (Video.js)'); // this.warning(VideoJS.warnings.videoNotReady);\n      }\n    }\n    /**\n     * Get the current duration of the HTML5 media element.\n     *\n     * @return {number}\n     *         The duration of the media or 0 if there is no duration.\n     */\n    ;\n\n    _proto.duration = function duration() {\n      var _this5 = this;\n\n      // Android Chrome will report duration as Infinity for VOD HLS until after\n      // playback has started, which triggers the live display erroneously.\n      // Return NaN if playback has not started and trigger a durationupdate once\n      // the duration can be reliably known.\n      if (this.el_.duration === Infinity && IS_ANDROID && IS_CHROME && this.el_.currentTime === 0) {\n        // Wait for the first `timeupdate` with currentTime > 0 - there may be\n        // several with 0\n        var checkProgress = function checkProgress() {\n          if (_this5.el_.currentTime > 0) {\n            // Trigger durationchange for genuinely live video\n            if (_this5.el_.duration === Infinity) {\n              _this5.trigger('durationchange');\n            }\n\n            _this5.off('timeupdate', checkProgress);\n          }\n        };\n\n        this.on('timeupdate', checkProgress);\n        return NaN;\n      }\n\n      return this.el_.duration || NaN;\n    }\n    /**\n     * Get the current width of the HTML5 media element.\n     *\n     * @return {number}\n     *         The width of the HTML5 media element.\n     */\n    ;\n\n    _proto.width = function width() {\n      return this.el_.offsetWidth;\n    }\n    /**\n     * Get the current height of the HTML5 media element.\n     *\n     * @return {number}\n     *         The height of the HTML5 media element.\n     */\n    ;\n\n    _proto.height = function height() {\n      return this.el_.offsetHeight;\n    }\n    /**\n     * Proxy iOS `webkitbeginfullscreen` and `webkitendfullscreen` into\n     * `fullscreenchange` event.\n     *\n     * @private\n     * @fires fullscreenchange\n     * @listens webkitendfullscreen\n     * @listens webkitbeginfullscreen\n     * @listens webkitbeginfullscreen\n     */\n    ;\n\n    _proto.proxyWebkitFullscreen_ = function proxyWebkitFullscreen_() {\n      var _this6 = this;\n\n      if (!('webkitDisplayingFullscreen' in this.el_)) {\n        return;\n      }\n\n      var endFn = function endFn() {\n        this.trigger('fullscreenchange', {\n          isFullscreen: false\n        }); // Safari will sometimes set contols on the videoelement when existing fullscreen.\n\n        if (this.el_.controls && !this.options_.nativeControlsForTouch && this.controls()) {\n          this.el_.controls = false;\n        }\n      };\n\n      var beginFn = function beginFn() {\n        if ('webkitPresentationMode' in this.el_ && this.el_.webkitPresentationMode !== 'picture-in-picture') {\n          this.one('webkitendfullscreen', endFn);\n          this.trigger('fullscreenchange', {\n            isFullscreen: true,\n            // set a flag in case another tech triggers fullscreenchange\n            nativeIOSFullscreen: true\n          });\n        }\n      };\n\n      this.on('webkitbeginfullscreen', beginFn);\n      this.on('dispose', function () {\n        _this6.off('webkitbeginfullscreen', beginFn);\n\n        _this6.off('webkitendfullscreen', endFn);\n      });\n    }\n    /**\n     * Check if fullscreen is supported on the current playback device.\n     *\n     * @return {boolean}\n     *         - True if fullscreen is supported.\n     *         - False if fullscreen is not supported.\n     */\n    ;\n\n    _proto.supportsFullScreen = function supportsFullScreen() {\n      if (typeof this.el_.webkitEnterFullScreen === 'function') {\n        var userAgent = window.navigator && window.navigator.userAgent || ''; // Seems to be broken in Chromium/Chrome && Safari in Leopard\n\n        if (/Android/.test(userAgent) || !/Chrome|Mac OS X 10.5/.test(userAgent)) {\n          return true;\n        }\n      }\n\n      return false;\n    }\n    /**\n     * Request that the `HTML5` Tech enter fullscreen.\n     */\n    ;\n\n    _proto.enterFullScreen = function enterFullScreen() {\n      var video = this.el_;\n\n      if (video.paused && video.networkState <= video.HAVE_METADATA) {\n        // attempt to prime the video element for programmatic access\n        // this isn't necessary on the desktop but shouldn't hurt\n        silencePromise(this.el_.play()); // playing and pausing synchronously during the transition to fullscreen\n        // can get iOS ~6.1 devices into a play/pause loop\n\n        this.setTimeout(function () {\n          video.pause();\n\n          try {\n            video.webkitEnterFullScreen();\n          } catch (e) {\n            this.trigger('fullscreenerror', e);\n          }\n        }, 0);\n      } else {\n        try {\n          video.webkitEnterFullScreen();\n        } catch (e) {\n          this.trigger('fullscreenerror', e);\n        }\n      }\n    }\n    /**\n     * Request that the `HTML5` Tech exit fullscreen.\n     */\n    ;\n\n    _proto.exitFullScreen = function exitFullScreen() {\n      if (!this.el_.webkitDisplayingFullscreen) {\n        this.trigger('fullscreenerror', new Error('The video is not fullscreen'));\n        return;\n      }\n\n      this.el_.webkitExitFullScreen();\n    }\n    /**\n     * Create a floating video window always on top of other windows so that users may\n     * continue consuming media while they interact with other content sites, or\n     * applications on their device.\n     *\n     * @see [Spec]{@link https://wicg.github.io/picture-in-picture}\n     *\n     * @return {Promise}\n     *         A promise with a Picture-in-Picture window.\n     */\n    ;\n\n    _proto.requestPictureInPicture = function requestPictureInPicture() {\n      return this.el_.requestPictureInPicture();\n    }\n    /**\n     * Native requestVideoFrameCallback if supported by browser/tech, or fallback\n     * Don't use rVCF on Safari when DRM is playing, as it doesn't fire\n     * Needs to be checked later than the constructor\n     * This will be a false positive for clear sources loaded after a Fairplay source\n     *\n     * @param {function} cb function to call\n     * @return {number} id of request\n     */\n    ;\n\n    _proto.requestVideoFrameCallback = function requestVideoFrameCallback(cb) {\n      if (this.featuresVideoFrameCallback && !this.el_.webkitKeys) {\n        return this.el_.requestVideoFrameCallback(cb);\n      }\n\n      return _Tech.prototype.requestVideoFrameCallback.call(this, cb);\n    }\n    /**\n     * Native or fallback requestVideoFrameCallback\n     *\n     * @param {number} id request id to cancel\n     */\n    ;\n\n    _proto.cancelVideoFrameCallback = function cancelVideoFrameCallback(id) {\n      if (this.featuresVideoFrameCallback && !this.el_.webkitKeys) {\n        this.el_.cancelVideoFrameCallback(id);\n      } else {\n        _Tech.prototype.cancelVideoFrameCallback.call(this, id);\n      }\n    }\n    /**\n     * A getter/setter for the `Html5` Tech's source object.\n     * > Note: Please use {@link Html5#setSource}\n     *\n     * @param {Tech~SourceObject} [src]\n     *        The source object you want to set on the `HTML5` techs element.\n     *\n     * @return {Tech~SourceObject|undefined}\n     *         - The current source object when a source is not passed in.\n     *         - undefined when setting\n     *\n     * @deprecated Since version 5.\n     */\n    ;\n\n    _proto.src = function src(_src) {\n      if (_src === undefined) {\n        return this.el_.src;\n      } // Setting src through `src` instead of `setSrc` will be deprecated\n\n\n      this.setSrc(_src);\n    }\n    /**\n     * Reset the tech by removing all sources and then calling\n     * {@link Html5.resetMediaElement}.\n     */\n    ;\n\n    _proto.reset = function reset() {\n      Html5.resetMediaElement(this.el_);\n    }\n    /**\n     * Get the current source on the `HTML5` Tech. Falls back to returning the source from\n     * the HTML5 media element.\n     *\n     * @return {Tech~SourceObject}\n     *         The current source object from the HTML5 tech. With a fallback to the\n     *         elements source.\n     */\n    ;\n\n    _proto.currentSrc = function currentSrc() {\n      if (this.currentSource_) {\n        return this.currentSource_.src;\n      }\n\n      return this.el_.currentSrc;\n    }\n    /**\n     * Set controls attribute for the HTML5 media Element.\n     *\n     * @param {string} val\n     *        Value to set the controls attribute to\n     */\n    ;\n\n    _proto.setControls = function setControls(val) {\n      this.el_.controls = !!val;\n    }\n    /**\n     * Create and returns a remote {@link TextTrack} object.\n     *\n     * @param {string} kind\n     *        `TextTrack` kind (subtitles, captions, descriptions, chapters, or metadata)\n     *\n     * @param {string} [label]\n     *        Label to identify the text track\n     *\n     * @param {string} [language]\n     *        Two letter language abbreviation\n     *\n     * @return {TextTrack}\n     *         The TextTrack that gets created.\n     */\n    ;\n\n    _proto.addTextTrack = function addTextTrack(kind, label, language) {\n      if (!this.featuresNativeTextTracks) {\n        return _Tech.prototype.addTextTrack.call(this, kind, label, language);\n      }\n\n      return this.el_.addTextTrack(kind, label, language);\n    }\n    /**\n     * Creates either native TextTrack or an emulated TextTrack depending\n     * on the value of `featuresNativeTextTracks`\n     *\n     * @param {Object} options\n     *        The object should contain the options to initialize the TextTrack with.\n     *\n     * @param {string} [options.kind]\n     *        `TextTrack` kind (subtitles, captions, descriptions, chapters, or metadata).\n     *\n     * @param {string} [options.label]\n     *        Label to identify the text track\n     *\n     * @param {string} [options.language]\n     *        Two letter language abbreviation.\n     *\n     * @param {boolean} [options.default]\n     *        Default this track to on.\n     *\n     * @param {string} [options.id]\n     *        The internal id to assign this track.\n     *\n     * @param {string} [options.src]\n     *        A source url for the track.\n     *\n     * @return {HTMLTrackElement}\n     *         The track element that gets created.\n     */\n    ;\n\n    _proto.createRemoteTextTrack = function createRemoteTextTrack(options) {\n      if (!this.featuresNativeTextTracks) {\n        return _Tech.prototype.createRemoteTextTrack.call(this, options);\n      }\n\n      var htmlTrackElement = document.createElement('track');\n\n      if (options.kind) {\n        htmlTrackElement.kind = options.kind;\n      }\n\n      if (options.label) {\n        htmlTrackElement.label = options.label;\n      }\n\n      if (options.language || options.srclang) {\n        htmlTrackElement.srclang = options.language || options.srclang;\n      }\n\n      if (options[\"default\"]) {\n        htmlTrackElement[\"default\"] = options[\"default\"];\n      }\n\n      if (options.id) {\n        htmlTrackElement.id = options.id;\n      }\n\n      if (options.src) {\n        htmlTrackElement.src = options.src;\n      }\n\n      return htmlTrackElement;\n    }\n    /**\n     * Creates a remote text track object and returns an html track element.\n     *\n     * @param {Object} options The object should contain values for\n     * kind, language, label, and src (location of the WebVTT file)\n     * @param {boolean} [manualCleanup=true] if set to false, the TextTrack will be\n     * automatically removed from the video element whenever the source changes\n     * @return {HTMLTrackElement} An Html Track Element.\n     * This can be an emulated {@link HTMLTrackElement} or a native one.\n     * @deprecated The default value of the \"manualCleanup\" parameter will default\n     * to \"false\" in upcoming versions of Video.js\n     */\n    ;\n\n    _proto.addRemoteTextTrack = function addRemoteTextTrack(options, manualCleanup) {\n      var htmlTrackElement = _Tech.prototype.addRemoteTextTrack.call(this, options, manualCleanup);\n\n      if (this.featuresNativeTextTracks) {\n        this.el().appendChild(htmlTrackElement);\n      }\n\n      return htmlTrackElement;\n    }\n    /**\n     * Remove remote `TextTrack` from `TextTrackList` object\n     *\n     * @param {TextTrack} track\n     *        `TextTrack` object to remove\n     */\n    ;\n\n    _proto.removeRemoteTextTrack = function removeRemoteTextTrack(track) {\n      _Tech.prototype.removeRemoteTextTrack.call(this, track);\n\n      if (this.featuresNativeTextTracks) {\n        var tracks = this.$$('track');\n        var i = tracks.length;\n\n        while (i--) {\n          if (track === tracks[i] || track === tracks[i].track) {\n            this.el().removeChild(tracks[i]);\n          }\n        }\n      }\n    }\n    /**\n     * Gets available media playback quality metrics as specified by the W3C's Media\n     * Playback Quality API.\n     *\n     * @see [Spec]{@link https://wicg.github.io/media-playback-quality}\n     *\n     * @return {Object}\n     *         An object with supported media playback quality metrics\n     */\n    ;\n\n    _proto.getVideoPlaybackQuality = function getVideoPlaybackQuality() {\n      if (typeof this.el().getVideoPlaybackQuality === 'function') {\n        return this.el().getVideoPlaybackQuality();\n      }\n\n      var videoPlaybackQuality = {};\n\n      if (typeof this.el().webkitDroppedFrameCount !== 'undefined' && typeof this.el().webkitDecodedFrameCount !== 'undefined') {\n        videoPlaybackQuality.droppedVideoFrames = this.el().webkitDroppedFrameCount;\n        videoPlaybackQuality.totalVideoFrames = this.el().webkitDecodedFrameCount;\n      }\n\n      if (window.performance && typeof window.performance.now === 'function') {\n        videoPlaybackQuality.creationTime = window.performance.now();\n      } else if (window.performance && window.performance.timing && typeof window.performance.timing.navigationStart === 'number') {\n        videoPlaybackQuality.creationTime = window.Date.now() - window.performance.timing.navigationStart;\n      }\n\n      return videoPlaybackQuality;\n    };\n\n    return Html5;\n  }(Tech);\n  /* HTML5 Support Testing ---------------------------------------------------- */\n\n  /**\n   * Element for testing browser HTML5 media capabilities\n   *\n   * @type {Element}\n   * @constant\n   * @private\n   */\n\n\n  defineLazyProperty(Html5, 'TEST_VID', function () {\n    if (!isReal()) {\n      return;\n    }\n\n    var video = document.createElement('video');\n    var track = document.createElement('track');\n    track.kind = 'captions';\n    track.srclang = 'en';\n    track.label = 'English';\n    video.appendChild(track);\n    return video;\n  });\n  /**\n   * Check if HTML5 media is supported by this browser/device.\n   *\n   * @return {boolean}\n   *         - True if HTML5 media is supported.\n   *         - False if HTML5 media is not supported.\n   */\n\n  Html5.isSupported = function () {\n    // IE with no Media Player is a LIAR! (#984)\n    try {\n      Html5.TEST_VID.volume = 0.5;\n    } catch (e) {\n      return false;\n    }\n\n    return !!(Html5.TEST_VID && Html5.TEST_VID.canPlayType);\n  };\n  /**\n   * Check if the tech can support the given type\n   *\n   * @param {string} type\n   *        The mimetype to check\n   * @return {string} 'probably', 'maybe', or '' (empty string)\n   */\n\n\n  Html5.canPlayType = function (type) {\n    return Html5.TEST_VID.canPlayType(type);\n  };\n  /**\n   * Check if the tech can support the given source\n   *\n   * @param {Object} srcObj\n   *        The source object\n   * @param {Object} options\n   *        The options passed to the tech\n   * @return {string} 'probably', 'maybe', or '' (empty string)\n   */\n\n\n  Html5.canPlaySource = function (srcObj, options) {\n    return Html5.canPlayType(srcObj.type);\n  };\n  /**\n   * Check if the volume can be changed in this browser/device.\n   * Volume cannot be changed in a lot of mobile devices.\n   * Specifically, it can't be changed from 1 on iOS.\n   *\n   * @return {boolean}\n   *         - True if volume can be controlled\n   *         - False otherwise\n   */\n\n\n  Html5.canControlVolume = function () {\n    // IE will error if Windows Media Player not installed #3315\n    try {\n      var volume = Html5.TEST_VID.volume;\n      Html5.TEST_VID.volume = volume / 2 + 0.1;\n      var canControl = volume !== Html5.TEST_VID.volume; // With the introduction of iOS 15, there are cases where the volume is read as\n      // changed but reverts back to its original state at the start of the next tick.\n      // To determine whether volume can be controlled on iOS,\n      // a timeout is set and the volume is checked asynchronously.\n      // Since `features` doesn't currently work asynchronously, the value is manually set.\n\n      if (canControl && IS_IOS) {\n        window.setTimeout(function () {\n          if (Html5 && Html5.prototype) {\n            Html5.prototype.featuresVolumeControl = volume !== Html5.TEST_VID.volume;\n          }\n        }); // default iOS to false, which will be updated in the timeout above.\n\n        return false;\n      }\n\n      return canControl;\n    } catch (e) {\n      return false;\n    }\n  };\n  /**\n   * Check if the volume can be muted in this browser/device.\n   * Some devices, e.g. iOS, don't allow changing volume\n   * but permits muting/unmuting.\n   *\n   * @return {bolean}\n   *      - True if volume can be muted\n   *      - False otherwise\n   */\n\n\n  Html5.canMuteVolume = function () {\n    try {\n      var muted = Html5.TEST_VID.muted; // in some versions of iOS muted property doesn't always\n      // work, so we want to set both property and attribute\n\n      Html5.TEST_VID.muted = !muted;\n\n      if (Html5.TEST_VID.muted) {\n        setAttribute(Html5.TEST_VID, 'muted', 'muted');\n      } else {\n        removeAttribute(Html5.TEST_VID, 'muted', 'muted');\n      }\n\n      return muted !== Html5.TEST_VID.muted;\n    } catch (e) {\n      return false;\n    }\n  };\n  /**\n   * Check if the playback rate can be changed in this browser/device.\n   *\n   * @return {boolean}\n   *         - True if playback rate can be controlled\n   *         - False otherwise\n   */\n\n\n  Html5.canControlPlaybackRate = function () {\n    // Playback rate API is implemented in Android Chrome, but doesn't do anything\n    // https://github.com/videojs/video.js/issues/3180\n    if (IS_ANDROID && IS_CHROME && CHROME_VERSION < 58) {\n      return false;\n    } // IE will error if Windows Media Player not installed #3315\n\n\n    try {\n      var playbackRate = Html5.TEST_VID.playbackRate;\n      Html5.TEST_VID.playbackRate = playbackRate / 2 + 0.1;\n      return playbackRate !== Html5.TEST_VID.playbackRate;\n    } catch (e) {\n      return false;\n    }\n  };\n  /**\n   * Check if we can override a video/audio elements attributes, with\n   * Object.defineProperty.\n   *\n   * @return {boolean}\n   *         - True if builtin attributes can be overridden\n   *         - False otherwise\n   */\n\n\n  Html5.canOverrideAttributes = function () {\n    // if we cannot overwrite the src/innerHTML property, there is no support\n    // iOS 7 safari for instance cannot do this.\n    try {\n      var noop = function noop() {};\n\n      Object.defineProperty(document.createElement('video'), 'src', {\n        get: noop,\n        set: noop\n      });\n      Object.defineProperty(document.createElement('audio'), 'src', {\n        get: noop,\n        set: noop\n      });\n      Object.defineProperty(document.createElement('video'), 'innerHTML', {\n        get: noop,\n        set: noop\n      });\n      Object.defineProperty(document.createElement('audio'), 'innerHTML', {\n        get: noop,\n        set: noop\n      });\n    } catch (e) {\n      return false;\n    }\n\n    return true;\n  };\n  /**\n   * Check to see if native `TextTrack`s are supported by this browser/device.\n   *\n   * @return {boolean}\n   *         - True if native `TextTrack`s are supported.\n   *         - False otherwise\n   */\n\n\n  Html5.supportsNativeTextTracks = function () {\n    return IS_ANY_SAFARI || IS_IOS && IS_CHROME;\n  };\n  /**\n   * Check to see if native `VideoTrack`s are supported by this browser/device\n   *\n   * @return {boolean}\n   *        - True if native `VideoTrack`s are supported.\n   *        - False otherwise\n   */\n\n\n  Html5.supportsNativeVideoTracks = function () {\n    return !!(Html5.TEST_VID && Html5.TEST_VID.videoTracks);\n  };\n  /**\n   * Check to see if native `AudioTrack`s are supported by this browser/device\n   *\n   * @return {boolean}\n   *        - True if native `AudioTrack`s are supported.\n   *        - False otherwise\n   */\n\n\n  Html5.supportsNativeAudioTracks = function () {\n    return !!(Html5.TEST_VID && Html5.TEST_VID.audioTracks);\n  };\n  /**\n   * An array of events available on the Html5 tech.\n   *\n   * @private\n   * @type {Array}\n   */\n\n\n  Html5.Events = ['loadstart', 'suspend', 'abort', 'error', 'emptied', 'stalled', 'loadedmetadata', 'loadeddata', 'canplay', 'canplaythrough', 'playing', 'waiting', 'seeking', 'seeked', 'ended', 'durationchange', 'timeupdate', 'progress', 'play', 'pause', 'ratechange', 'resize', 'volumechange'];\n  /**\n   * Boolean indicating whether the `Tech` supports volume control.\n   *\n   * @type {boolean}\n   * @default {@link Html5.canControlVolume}\n   */\n\n  /**\n   * Boolean indicating whether the `Tech` supports muting volume.\n   *\n   * @type {bolean}\n   * @default {@link Html5.canMuteVolume}\n   */\n\n  /**\n   * Boolean indicating whether the `Tech` supports changing the speed at which the media\n   * plays. Examples:\n   *   - Set player to play 2x (twice) as fast\n   *   - Set player to play 0.5x (half) as fast\n   *\n   * @type {boolean}\n   * @default {@link Html5.canControlPlaybackRate}\n   */\n\n  /**\n   * Boolean indicating whether the `Tech` supports the `sourceset` event.\n   *\n   * @type {boolean}\n   * @default\n   */\n\n  /**\n   * Boolean indicating whether the `HTML5` tech currently supports native `TextTrack`s.\n   *\n   * @type {boolean}\n   * @default {@link Html5.supportsNativeTextTracks}\n   */\n\n  /**\n   * Boolean indicating whether the `HTML5` tech currently supports native `VideoTrack`s.\n   *\n   * @type {boolean}\n   * @default {@link Html5.supportsNativeVideoTracks}\n   */\n\n  /**\n   * Boolean indicating whether the `HTML5` tech currently supports native `AudioTrack`s.\n   *\n   * @type {boolean}\n   * @default {@link Html5.supportsNativeAudioTracks}\n   */\n\n  [['featuresMuteControl', 'canMuteVolume'], ['featuresPlaybackRate', 'canControlPlaybackRate'], ['featuresSourceset', 'canOverrideAttributes'], ['featuresNativeTextTracks', 'supportsNativeTextTracks'], ['featuresNativeVideoTracks', 'supportsNativeVideoTracks'], ['featuresNativeAudioTracks', 'supportsNativeAudioTracks']].forEach(function (_ref) {\n    var key = _ref[0],\n        fn = _ref[1];\n    defineLazyProperty(Html5.prototype, key, function () {\n      return Html5[fn]();\n    }, true);\n  });\n  Html5.prototype.featuresVolumeControl = Html5.canControlVolume();\n  /**\n   * Boolean indicating whether the `HTML5` tech currently supports the media element\n   * moving in the DOM. iOS breaks if you move the media element, so this is set this to\n   * false there. Everywhere else this should be true.\n   *\n   * @type {boolean}\n   * @default\n   */\n\n  Html5.prototype.movingMediaElementInDOM = !IS_IOS; // TODO: Previous comment: No longer appears to be used. Can probably be removed.\n  //       Is this true?\n\n  /**\n   * Boolean indicating whether the `HTML5` tech currently supports automatic media resize\n   * when going into fullscreen.\n   *\n   * @type {boolean}\n   * @default\n   */\n\n  Html5.prototype.featuresFullscreenResize = true;\n  /**\n   * Boolean indicating whether the `HTML5` tech currently supports the progress event.\n   * If this is false, manual `progress` events will be triggered instead.\n   *\n   * @type {boolean}\n   * @default\n   */\n\n  Html5.prototype.featuresProgressEvents = true;\n  /**\n   * Boolean indicating whether the `HTML5` tech currently supports the timeupdate event.\n   * If this is false, manual `timeupdate` events will be triggered instead.\n   *\n   * @default\n   */\n\n  Html5.prototype.featuresTimeupdateEvents = true;\n  /**\n   * Whether the HTML5 el supports `requestVideoFrameCallback`\n   *\n   * @type {boolean}\n   */\n\n  Html5.prototype.featuresVideoFrameCallback = !!(Html5.TEST_VID && Html5.TEST_VID.requestVideoFrameCallback); // HTML5 Feature detection and Device Fixes --------------------------------- //\n\n  var canPlayType;\n\n  Html5.patchCanPlayType = function () {\n    // Android 4.0 and above can play HLS to some extent but it reports being unable to do so\n    // Firefox and Chrome report correctly\n    if (ANDROID_VERSION >= 4.0 && !IS_FIREFOX && !IS_CHROME) {\n      canPlayType = Html5.TEST_VID && Html5.TEST_VID.constructor.prototype.canPlayType;\n\n      Html5.TEST_VID.constructor.prototype.canPlayType = function (type) {\n        var mpegurlRE = /^application\\/(?:x-|vnd\\.apple\\.)mpegurl/i;\n\n        if (type && mpegurlRE.test(type)) {\n          return 'maybe';\n        }\n\n        return canPlayType.call(this, type);\n      };\n    }\n  };\n\n  Html5.unpatchCanPlayType = function () {\n    var r = Html5.TEST_VID.constructor.prototype.canPlayType;\n\n    if (canPlayType) {\n      Html5.TEST_VID.constructor.prototype.canPlayType = canPlayType;\n    }\n\n    return r;\n  }; // by default, patch the media element\n\n\n  Html5.patchCanPlayType();\n\n  Html5.disposeMediaElement = function (el) {\n    if (!el) {\n      return;\n    }\n\n    if (el.parentNode) {\n      el.parentNode.removeChild(el);\n    } // remove any child track or source nodes to prevent their loading\n\n\n    while (el.hasChildNodes()) {\n      el.removeChild(el.firstChild);\n    } // remove any src reference. not setting `src=''` because that causes a warning\n    // in firefox\n\n\n    el.removeAttribute('src'); // force the media element to update its loading state by calling load()\n    // however IE on Windows 7N has a bug that throws an error so need a try/catch (#793)\n\n    if (typeof el.load === 'function') {\n      // wrapping in an iife so it's not deoptimized (#1060#discussion_r10324473)\n      (function () {\n        try {\n          el.load();\n        } catch (e) {// not supported\n        }\n      })();\n    }\n  };\n\n  Html5.resetMediaElement = function (el) {\n    if (!el) {\n      return;\n    }\n\n    var sources = el.querySelectorAll('source');\n    var i = sources.length;\n\n    while (i--) {\n      el.removeChild(sources[i]);\n    } // remove any src reference.\n    // not setting `src=''` because that throws an error\n\n\n    el.removeAttribute('src');\n\n    if (typeof el.load === 'function') {\n      // wrapping in an iife so it's not deoptimized (#1060#discussion_r10324473)\n      (function () {\n        try {\n          el.load();\n        } catch (e) {// satisfy linter\n        }\n      })();\n    }\n  };\n  /* Native HTML5 element property wrapping ----------------------------------- */\n  // Wrap native boolean attributes with getters that check both property and attribute\n  // The list is as followed:\n  // muted, defaultMuted, autoplay, controls, loop, playsinline\n\n\n  [\n  /**\n   * Get the value of `muted` from the media element. `muted` indicates\n   * that the volume for the media should be set to silent. This does not actually change\n   * the `volume` attribute.\n   *\n   * @method Html5#muted\n   * @return {boolean}\n   *         - True if the value of `volume` should be ignored and the audio set to silent.\n   *         - False if the value of `volume` should be used.\n   *\n   * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-muted}\n   */\n  'muted',\n  /**\n   * Get the value of `defaultMuted` from the media element. `defaultMuted` indicates\n   * whether the media should start muted or not. Only changes the default state of the\n   * media. `muted` and `defaultMuted` can have different values. {@link Html5#muted} indicates the\n   * current state.\n   *\n   * @method Html5#defaultMuted\n   * @return {boolean}\n   *         - The value of `defaultMuted` from the media element.\n   *         - True indicates that the media should start muted.\n   *         - False indicates that the media should not start muted\n   *\n   * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-defaultmuted}\n   */\n  'defaultMuted',\n  /**\n   * Get the value of `autoplay` from the media element. `autoplay` indicates\n   * that the media should start to play as soon as the page is ready.\n   *\n   * @method Html5#autoplay\n   * @return {boolean}\n   *         - The value of `autoplay` from the media element.\n   *         - True indicates that the media should start as soon as the page loads.\n   *         - False indicates that the media should not start as soon as the page loads.\n   *\n   * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-media-autoplay}\n   */\n  'autoplay',\n  /**\n   * Get the value of `controls` from the media element. `controls` indicates\n   * whether the native media controls should be shown or hidden.\n   *\n   * @method Html5#controls\n   * @return {boolean}\n   *         - The value of `controls` from the media element.\n   *         - True indicates that native controls should be showing.\n   *         - False indicates that native controls should be hidden.\n   *\n   * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-media-controls}\n   */\n  'controls',\n  /**\n   * Get the value of `loop` from the media element. `loop` indicates\n   * that the media should return to the start of the media and continue playing once\n   * it reaches the end.\n   *\n   * @method Html5#loop\n   * @return {boolean}\n   *         - The value of `loop` from the media element.\n   *         - True indicates that playback should seek back to start once\n   *           the end of a media is reached.\n   *         - False indicates that playback should not loop back to the start when the\n   *           end of the media is reached.\n   *\n   * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-media-loop}\n   */\n  'loop',\n  /**\n   * Get the value of `playsinline` from the media element. `playsinline` indicates\n   * to the browser that non-fullscreen playback is preferred when fullscreen\n   * playback is the native default, such as in iOS Safari.\n   *\n   * @method Html5#playsinline\n   * @return {boolean}\n   *         - The value of `playsinline` from the media element.\n   *         - True indicates that the media should play inline.\n   *         - False indicates that the media should not play inline.\n   *\n   * @see [Spec]{@link https://html.spec.whatwg.org/#attr-video-playsinline}\n   */\n  'playsinline'].forEach(function (prop) {\n    Html5.prototype[prop] = function () {\n      return this.el_[prop] || this.el_.hasAttribute(prop);\n    };\n  }); // Wrap native boolean attributes with setters that set both property and attribute\n  // The list is as followed:\n  // setMuted, setDefaultMuted, setAutoplay, setLoop, setPlaysinline\n  // setControls is special-cased above\n\n  [\n  /**\n   * Set the value of `muted` on the media element. `muted` indicates that the current\n   * audio level should be silent.\n   *\n   * @method Html5#setMuted\n   * @param {boolean} muted\n   *        - True if the audio should be set to silent\n   *        - False otherwise\n   *\n   * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-muted}\n   */\n  'muted',\n  /**\n   * Set the value of `defaultMuted` on the media element. `defaultMuted` indicates that the current\n   * audio level should be silent, but will only effect the muted level on initial playback..\n   *\n   * @method Html5.prototype.setDefaultMuted\n   * @param {boolean} defaultMuted\n   *        - True if the audio should be set to silent\n   *        - False otherwise\n   *\n   * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-defaultmuted}\n   */\n  'defaultMuted',\n  /**\n   * Set the value of `autoplay` on the media element. `autoplay` indicates\n   * that the media should start to play as soon as the page is ready.\n   *\n   * @method Html5#setAutoplay\n   * @param {boolean} autoplay\n   *         - True indicates that the media should start as soon as the page loads.\n   *         - False indicates that the media should not start as soon as the page loads.\n   *\n   * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-media-autoplay}\n   */\n  'autoplay',\n  /**\n   * Set the value of `loop` on the media element. `loop` indicates\n   * that the media should return to the start of the media and continue playing once\n   * it reaches the end.\n   *\n   * @method Html5#setLoop\n   * @param {boolean} loop\n   *         - True indicates that playback should seek back to start once\n   *           the end of a media is reached.\n   *         - False indicates that playback should not loop back to the start when the\n   *           end of the media is reached.\n   *\n   * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-media-loop}\n   */\n  'loop',\n  /**\n   * Set the value of `playsinline` from the media element. `playsinline` indicates\n   * to the browser that non-fullscreen playback is preferred when fullscreen\n   * playback is the native default, such as in iOS Safari.\n   *\n   * @method Html5#setPlaysinline\n   * @param {boolean} playsinline\n   *         - True indicates that the media should play inline.\n   *         - False indicates that the media should not play inline.\n   *\n   * @see [Spec]{@link https://html.spec.whatwg.org/#attr-video-playsinline}\n   */\n  'playsinline'].forEach(function (prop) {\n    Html5.prototype['set' + toTitleCase$1(prop)] = function (v) {\n      this.el_[prop] = v;\n\n      if (v) {\n        this.el_.setAttribute(prop, prop);\n      } else {\n        this.el_.removeAttribute(prop);\n      }\n    };\n  }); // Wrap native properties with a getter\n  // The list is as followed\n  // paused, currentTime, buffered, volume, poster, preload, error, seeking\n  // seekable, ended, playbackRate, defaultPlaybackRate, disablePictureInPicture\n  // played, networkState, readyState, videoWidth, videoHeight, crossOrigin\n\n  [\n  /**\n   * Get the value of `paused` from the media element. `paused` indicates whether the media element\n   * is currently paused or not.\n   *\n   * @method Html5#paused\n   * @return {boolean}\n   *         The value of `paused` from the media element.\n   *\n   * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-paused}\n   */\n  'paused',\n  /**\n   * Get the value of `currentTime` from the media element. `currentTime` indicates\n   * the current second that the media is at in playback.\n   *\n   * @method Html5#currentTime\n   * @return {number}\n   *         The value of `currentTime` from the media element.\n   *\n   * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-currenttime}\n   */\n  'currentTime',\n  /**\n   * Get the value of `buffered` from the media element. `buffered` is a `TimeRange`\n   * object that represents the parts of the media that are already downloaded and\n   * available for playback.\n   *\n   * @method Html5#buffered\n   * @return {TimeRange}\n   *         The value of `buffered` from the media element.\n   *\n   * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-buffered}\n   */\n  'buffered',\n  /**\n   * Get the value of `volume` from the media element. `volume` indicates\n   * the current playback volume of audio for a media. `volume` will be a value from 0\n   * (silent) to 1 (loudest and default).\n   *\n   * @method Html5#volume\n   * @return {number}\n   *         The value of `volume` from the media element. Value will be between 0-1.\n   *\n   * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-a-volume}\n   */\n  'volume',\n  /**\n   * Get the value of `poster` from the media element. `poster` indicates\n   * that the url of an image file that can/will be shown when no media data is available.\n   *\n   * @method Html5#poster\n   * @return {string}\n   *         The value of `poster` from the media element. Value will be a url to an\n   *         image.\n   *\n   * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-video-poster}\n   */\n  'poster',\n  /**\n   * Get the value of `preload` from the media element. `preload` indicates\n   * what should download before the media is interacted with. It can have the following\n   * values:\n   * - none: nothing should be downloaded\n   * - metadata: poster and the first few frames of the media may be downloaded to get\n   *   media dimensions and other metadata\n   * - auto: allow the media and metadata for the media to be downloaded before\n   *    interaction\n   *\n   * @method Html5#preload\n   * @return {string}\n   *         The value of `preload` from the media element. Will be 'none', 'metadata',\n   *         or 'auto'.\n   *\n   * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-media-preload}\n   */\n  'preload',\n  /**\n   * Get the value of the `error` from the media element. `error` indicates any\n   * MediaError that may have occurred during playback. If error returns null there is no\n   * current error.\n   *\n   * @method Html5#error\n   * @return {MediaError|null}\n   *         The value of `error` from the media element. Will be `MediaError` if there\n   *         is a current error and null otherwise.\n   *\n   * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-error}\n   */\n  'error',\n  /**\n   * Get the value of `seeking` from the media element. `seeking` indicates whether the\n   * media is currently seeking to a new position or not.\n   *\n   * @method Html5#seeking\n   * @return {boolean}\n   *         - The value of `seeking` from the media element.\n   *         - True indicates that the media is currently seeking to a new position.\n   *         - False indicates that the media is not seeking to a new position at this time.\n   *\n   * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-seeking}\n   */\n  'seeking',\n  /**\n   * Get the value of `seekable` from the media element. `seekable` returns a\n   * `TimeRange` object indicating ranges of time that can currently be `seeked` to.\n   *\n   * @method Html5#seekable\n   * @return {TimeRange}\n   *         The value of `seekable` from the media element. A `TimeRange` object\n   *         indicating the current ranges of time that can be seeked to.\n   *\n   * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-seekable}\n   */\n  'seekable',\n  /**\n   * Get the value of `ended` from the media element. `ended` indicates whether\n   * the media has reached the end or not.\n   *\n   * @method Html5#ended\n   * @return {boolean}\n   *         - The value of `ended` from the media element.\n   *         - True indicates that the media has ended.\n   *         - False indicates that the media has not ended.\n   *\n   * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-ended}\n   */\n  'ended',\n  /**\n   * Get the value of `playbackRate` from the media element. `playbackRate` indicates\n   * the rate at which the media is currently playing back. Examples:\n   *   - if playbackRate is set to 2, media will play twice as fast.\n   *   - if playbackRate is set to 0.5, media will play half as fast.\n   *\n   * @method Html5#playbackRate\n   * @return {number}\n   *         The value of `playbackRate` from the media element. A number indicating\n   *         the current playback speed of the media, where 1 is normal speed.\n   *\n   * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-playbackrate}\n   */\n  'playbackRate',\n  /**\n   * Get the value of `defaultPlaybackRate` from the media element. `defaultPlaybackRate` indicates\n   * the rate at which the media is currently playing back. This value will not indicate the current\n   * `playbackRate` after playback has started, use {@link Html5#playbackRate} for that.\n   *\n   * Examples:\n   *   - if defaultPlaybackRate is set to 2, media will play twice as fast.\n   *   - if defaultPlaybackRate is set to 0.5, media will play half as fast.\n   *\n   * @method Html5.prototype.defaultPlaybackRate\n   * @return {number}\n   *         The value of `defaultPlaybackRate` from the media element. A number indicating\n   *         the current playback speed of the media, where 1 is normal speed.\n   *\n   * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-playbackrate}\n   */\n  'defaultPlaybackRate',\n  /**\n   * Get the value of 'disablePictureInPicture' from the video element.\n   *\n   * @method Html5#disablePictureInPicture\n   * @return {boolean} value\n   *         - The value of `disablePictureInPicture` from the video element.\n   *         - True indicates that the video can't be played in Picture-In-Picture mode\n   *         - False indicates that the video can be played in Picture-In-Picture mode\n   *\n   * @see [Spec]{@link https://w3c.github.io/picture-in-picture/#disable-pip}\n   */\n  'disablePictureInPicture',\n  /**\n   * Get the value of `played` from the media element. `played` returns a `TimeRange`\n   * object representing points in the media timeline that have been played.\n   *\n   * @method Html5#played\n   * @return {TimeRange}\n   *         The value of `played` from the media element. A `TimeRange` object indicating\n   *         the ranges of time that have been played.\n   *\n   * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-played}\n   */\n  'played',\n  /**\n   * Get the value of `networkState` from the media element. `networkState` indicates\n   * the current network state. It returns an enumeration from the following list:\n   * - 0: NETWORK_EMPTY\n   * - 1: NETWORK_IDLE\n   * - 2: NETWORK_LOADING\n   * - 3: NETWORK_NO_SOURCE\n   *\n   * @method Html5#networkState\n   * @return {number}\n   *         The value of `networkState` from the media element. This will be a number\n   *         from the list in the description.\n   *\n   * @see [Spec] {@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-networkstate}\n   */\n  'networkState',\n  /**\n   * Get the value of `readyState` from the media element. `readyState` indicates\n   * the current state of the media element. It returns an enumeration from the\n   * following list:\n   * - 0: HAVE_NOTHING\n   * - 1: HAVE_METADATA\n   * - 2: HAVE_CURRENT_DATA\n   * - 3: HAVE_FUTURE_DATA\n   * - 4: HAVE_ENOUGH_DATA\n   *\n   * @method Html5#readyState\n   * @return {number}\n   *         The value of `readyState` from the media element. This will be a number\n   *         from the list in the description.\n   *\n   * @see [Spec] {@link https://www.w3.org/TR/html5/embedded-content-0.html#ready-states}\n   */\n  'readyState',\n  /**\n   * Get the value of `videoWidth` from the video element. `videoWidth` indicates\n   * the current width of the video in css pixels.\n   *\n   * @method Html5#videoWidth\n   * @return {number}\n   *         The value of `videoWidth` from the video element. This will be a number\n   *         in css pixels.\n   *\n   * @see [Spec] {@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-video-videowidth}\n   */\n  'videoWidth',\n  /**\n   * Get the value of `videoHeight` from the video element. `videoHeight` indicates\n   * the current height of the video in css pixels.\n   *\n   * @method Html5#videoHeight\n   * @return {number}\n   *         The value of `videoHeight` from the video element. This will be a number\n   *         in css pixels.\n   *\n   * @see [Spec] {@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-video-videowidth}\n   */\n  'videoHeight',\n  /**\n   * Get the value of `crossOrigin` from the media element. `crossOrigin` indicates\n   * to the browser that should sent the cookies along with the requests for the\n   * different assets/playlists\n   *\n   * @method Html5#crossOrigin\n   * @return {string}\n   *         - anonymous indicates that the media should not sent cookies.\n   *         - use-credentials indicates that the media should sent cookies along the requests.\n   *\n   * @see [Spec]{@link https://html.spec.whatwg.org/#attr-media-crossorigin}\n   */\n  'crossOrigin'].forEach(function (prop) {\n    Html5.prototype[prop] = function () {\n      return this.el_[prop];\n    };\n  }); // Wrap native properties with a setter in this format:\n  // set + toTitleCase(name)\n  // The list is as follows:\n  // setVolume, setSrc, setPoster, setPreload, setPlaybackRate, setDefaultPlaybackRate,\n  // setDisablePictureInPicture, setCrossOrigin\n\n  [\n  /**\n   * Set the value of `volume` on the media element. `volume` indicates the current\n   * audio level as a percentage in decimal form. This means that 1 is 100%, 0.5 is 50%, and\n   * so on.\n   *\n   * @method Html5#setVolume\n   * @param {number} percentAsDecimal\n   *        The volume percent as a decimal. Valid range is from 0-1.\n   *\n   * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-a-volume}\n   */\n  'volume',\n  /**\n   * Set the value of `src` on the media element. `src` indicates the current\n   * {@link Tech~SourceObject} for the media.\n   *\n   * @method Html5#setSrc\n   * @param {Tech~SourceObject} src\n   *        The source object to set as the current source.\n   *\n   * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-src}\n   */\n  'src',\n  /**\n   * Set the value of `poster` on the media element. `poster` is the url to\n   * an image file that can/will be shown when no media data is available.\n   *\n   * @method Html5#setPoster\n   * @param {string} poster\n   *        The url to an image that should be used as the `poster` for the media\n   *        element.\n   *\n   * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-media-poster}\n   */\n  'poster',\n  /**\n   * Set the value of `preload` on the media element. `preload` indicates\n   * what should download before the media is interacted with. It can have the following\n   * values:\n   * - none: nothing should be downloaded\n   * - metadata: poster and the first few frames of the media may be downloaded to get\n   *   media dimensions and other metadata\n   * - auto: allow the media and metadata for the media to be downloaded before\n   *    interaction\n   *\n   * @method Html5#setPreload\n   * @param {string} preload\n   *         The value of `preload` to set on the media element. Must be 'none', 'metadata',\n   *         or 'auto'.\n   *\n   * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-media-preload}\n   */\n  'preload',\n  /**\n   * Set the value of `playbackRate` on the media element. `playbackRate` indicates\n   * the rate at which the media should play back. Examples:\n   *   - if playbackRate is set to 2, media will play twice as fast.\n   *   - if playbackRate is set to 0.5, media will play half as fast.\n   *\n   * @method Html5#setPlaybackRate\n   * @return {number}\n   *         The value of `playbackRate` from the media element. A number indicating\n   *         the current playback speed of the media, where 1 is normal speed.\n   *\n   * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-playbackrate}\n   */\n  'playbackRate',\n  /**\n   * Set the value of `defaultPlaybackRate` on the media element. `defaultPlaybackRate` indicates\n   * the rate at which the media should play back upon initial startup. Changing this value\n   * after a video has started will do nothing. Instead you should used {@link Html5#setPlaybackRate}.\n   *\n   * Example Values:\n   *   - if playbackRate is set to 2, media will play twice as fast.\n   *   - if playbackRate is set to 0.5, media will play half as fast.\n   *\n   * @method Html5.prototype.setDefaultPlaybackRate\n   * @return {number}\n   *         The value of `defaultPlaybackRate` from the media element. A number indicating\n   *         the current playback speed of the media, where 1 is normal speed.\n   *\n   * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-defaultplaybackrate}\n   */\n  'defaultPlaybackRate',\n  /**\n   * Prevents the browser from suggesting a Picture-in-Picture context menu\n   * or to request Picture-in-Picture automatically in some cases.\n   *\n   * @method Html5#setDisablePictureInPicture\n   * @param {boolean} value\n   *         The true value will disable Picture-in-Picture mode.\n   *\n   * @see [Spec]{@link https://w3c.github.io/picture-in-picture/#disable-pip}\n   */\n  'disablePictureInPicture',\n  /**\n   * Set the value of `crossOrigin` from the media element. `crossOrigin` indicates\n   * to the browser that should sent the cookies along with the requests for the\n   * different assets/playlists\n   *\n   * @method Html5#setCrossOrigin\n   * @param {string} crossOrigin\n   *         - anonymous indicates that the media should not sent cookies.\n   *         - use-credentials indicates that the media should sent cookies along the requests.\n   *\n   * @see [Spec]{@link https://html.spec.whatwg.org/#attr-media-crossorigin}\n   */\n  'crossOrigin'].forEach(function (prop) {\n    Html5.prototype['set' + toTitleCase$1(prop)] = function (v) {\n      this.el_[prop] = v;\n    };\n  }); // wrap native functions with a function\n  // The list is as follows:\n  // pause, load, play\n\n  [\n  /**\n   * A wrapper around the media elements `pause` function. This will call the `HTML5`\n   * media elements `pause` function.\n   *\n   * @method Html5#pause\n   * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-pause}\n   */\n  'pause',\n  /**\n   * A wrapper around the media elements `load` function. This will call the `HTML5`s\n   * media element `load` function.\n   *\n   * @method Html5#load\n   * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-load}\n   */\n  'load',\n  /**\n   * A wrapper around the media elements `play` function. This will call the `HTML5`s\n   * media element `play` function.\n   *\n   * @method Html5#play\n   * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-play}\n   */\n  'play'].forEach(function (prop) {\n    Html5.prototype[prop] = function () {\n      return this.el_[prop]();\n    };\n  });\n  Tech.withSourceHandlers(Html5);\n  /**\n   * Native source handler for Html5, simply passes the source to the media element.\n   *\n   * @property {Tech~SourceObject} source\n   *        The source object\n   *\n   * @property {Html5} tech\n   *        The instance of the HTML5 tech.\n   */\n\n  Html5.nativeSourceHandler = {};\n  /**\n   * Check if the media element can play the given mime type.\n   *\n   * @param {string} type\n   *        The mimetype to check\n   *\n   * @return {string}\n   *         'probably', 'maybe', or '' (empty string)\n   */\n\n  Html5.nativeSourceHandler.canPlayType = function (type) {\n    // IE without MediaPlayer throws an error (#519)\n    try {\n      return Html5.TEST_VID.canPlayType(type);\n    } catch (e) {\n      return '';\n    }\n  };\n  /**\n   * Check if the media element can handle a source natively.\n   *\n   * @param {Tech~SourceObject} source\n   *         The source object\n   *\n   * @param {Object} [options]\n   *         Options to be passed to the tech.\n   *\n   * @return {string}\n   *         'probably', 'maybe', or '' (empty string).\n   */\n\n\n  Html5.nativeSourceHandler.canHandleSource = function (source, options) {\n    // If a type was provided we should rely on that\n    if (source.type) {\n      return Html5.nativeSourceHandler.canPlayType(source.type); // If no type, fall back to checking 'video/[EXTENSION]'\n    } else if (source.src) {\n      var ext = getFileExtension(source.src);\n      return Html5.nativeSourceHandler.canPlayType(\"video/\" + ext);\n    }\n\n    return '';\n  };\n  /**\n   * Pass the source to the native media element.\n   *\n   * @param {Tech~SourceObject} source\n   *        The source object\n   *\n   * @param {Html5} tech\n   *        The instance of the Html5 tech\n   *\n   * @param {Object} [options]\n   *        The options to pass to the source\n   */\n\n\n  Html5.nativeSourceHandler.handleSource = function (source, tech, options) {\n    tech.setSrc(source.src);\n  };\n  /**\n   * A noop for the native dispose function, as cleanup is not needed.\n   */\n\n\n  Html5.nativeSourceHandler.dispose = function () {}; // Register the native source handler\n\n\n  Html5.registerSourceHandler(Html5.nativeSourceHandler);\n  Tech.registerTech('Html5', Html5);\n\n  // on the player when they happen\n\n  var TECH_EVENTS_RETRIGGER = [\n  /**\n   * Fired while the user agent is downloading media data.\n   *\n   * @event Player#progress\n   * @type {EventTarget~Event}\n   */\n\n  /**\n   * Retrigger the `progress` event that was triggered by the {@link Tech}.\n   *\n   * @private\n   * @method Player#handleTechProgress_\n   * @fires Player#progress\n   * @listens Tech#progress\n   */\n  'progress',\n  /**\n   * Fires when the loading of an audio/video is aborted.\n   *\n   * @event Player#abort\n   * @type {EventTarget~Event}\n   */\n\n  /**\n   * Retrigger the `abort` event that was triggered by the {@link Tech}.\n   *\n   * @private\n   * @method Player#handleTechAbort_\n   * @fires Player#abort\n   * @listens Tech#abort\n   */\n  'abort',\n  /**\n   * Fires when the browser is intentionally not getting media data.\n   *\n   * @event Player#suspend\n   * @type {EventTarget~Event}\n   */\n\n  /**\n   * Retrigger the `suspend` event that was triggered by the {@link Tech}.\n   *\n   * @private\n   * @method Player#handleTechSuspend_\n   * @fires Player#suspend\n   * @listens Tech#suspend\n   */\n  'suspend',\n  /**\n   * Fires when the current playlist is empty.\n   *\n   * @event Player#emptied\n   * @type {EventTarget~Event}\n   */\n\n  /**\n   * Retrigger the `emptied` event that was triggered by the {@link Tech}.\n   *\n   * @private\n   * @method Player#handleTechEmptied_\n   * @fires Player#emptied\n   * @listens Tech#emptied\n   */\n  'emptied',\n  /**\n   * Fires when the browser is trying to get media data, but data is not available.\n   *\n   * @event Player#stalled\n   * @type {EventTarget~Event}\n   */\n\n  /**\n   * Retrigger the `stalled` event that was triggered by the {@link Tech}.\n   *\n   * @private\n   * @method Player#handleTechStalled_\n   * @fires Player#stalled\n   * @listens Tech#stalled\n   */\n  'stalled',\n  /**\n   * Fires when the browser has loaded meta data for the audio/video.\n   *\n   * @event Player#loadedmetadata\n   * @type {EventTarget~Event}\n   */\n\n  /**\n   * Retrigger the `loadedmetadata` event that was triggered by the {@link Tech}.\n   *\n   * @private\n   * @method Player#handleTechLoadedmetadata_\n   * @fires Player#loadedmetadata\n   * @listens Tech#loadedmetadata\n   */\n  'loadedmetadata',\n  /**\n   * Fires when the browser has loaded the current frame of the audio/video.\n   *\n   * @event Player#loadeddata\n   * @type {event}\n   */\n\n  /**\n   * Retrigger the `loadeddata` event that was triggered by the {@link Tech}.\n   *\n   * @private\n   * @method Player#handleTechLoaddeddata_\n   * @fires Player#loadeddata\n   * @listens Tech#loadeddata\n   */\n  'loadeddata',\n  /**\n   * Fires when the current playback position has changed.\n   *\n   * @event Player#timeupdate\n   * @type {event}\n   */\n\n  /**\n   * Retrigger the `timeupdate` event that was triggered by the {@link Tech}.\n   *\n   * @private\n   * @method Player#handleTechTimeUpdate_\n   * @fires Player#timeupdate\n   * @listens Tech#timeupdate\n   */\n  'timeupdate',\n  /**\n   * Fires when the video's intrinsic dimensions change\n   *\n   * @event Player#resize\n   * @type {event}\n   */\n\n  /**\n   * Retrigger the `resize` event that was triggered by the {@link Tech}.\n   *\n   * @private\n   * @method Player#handleTechResize_\n   * @fires Player#resize\n   * @listens Tech#resize\n   */\n  'resize',\n  /**\n   * Fires when the volume has been changed\n   *\n   * @event Player#volumechange\n   * @type {event}\n   */\n\n  /**\n   * Retrigger the `volumechange` event that was triggered by the {@link Tech}.\n   *\n   * @private\n   * @method Player#handleTechVolumechange_\n   * @fires Player#volumechange\n   * @listens Tech#volumechange\n   */\n  'volumechange',\n  /**\n   * Fires when the text track has been changed\n   *\n   * @event Player#texttrackchange\n   * @type {event}\n   */\n\n  /**\n   * Retrigger the `texttrackchange` event that was triggered by the {@link Tech}.\n   *\n   * @private\n   * @method Player#handleTechTexttrackchange_\n   * @fires Player#texttrackchange\n   * @listens Tech#texttrackchange\n   */\n  'texttrackchange']; // events to queue when playback rate is zero\n  // this is a hash for the sole purpose of mapping non-camel-cased event names\n  // to camel-cased function names\n\n  var TECH_EVENTS_QUEUE = {\n    canplay: 'CanPlay',\n    canplaythrough: 'CanPlayThrough',\n    playing: 'Playing',\n    seeked: 'Seeked'\n  };\n  var BREAKPOINT_ORDER = ['tiny', 'xsmall', 'small', 'medium', 'large', 'xlarge', 'huge'];\n  var BREAKPOINT_CLASSES = {}; // grep: vjs-layout-tiny\n  // grep: vjs-layout-x-small\n  // grep: vjs-layout-small\n  // grep: vjs-layout-medium\n  // grep: vjs-layout-large\n  // grep: vjs-layout-x-large\n  // grep: vjs-layout-huge\n\n  BREAKPOINT_ORDER.forEach(function (k) {\n    var v = k.charAt(0) === 'x' ? \"x-\" + k.substring(1) : k;\n    BREAKPOINT_CLASSES[k] = \"vjs-layout-\" + v;\n  });\n  var DEFAULT_BREAKPOINTS = {\n    tiny: 210,\n    xsmall: 320,\n    small: 425,\n    medium: 768,\n    large: 1440,\n    xlarge: 2560,\n    huge: Infinity\n  };\n  /**\n   * An instance of the `Player` class is created when any of the Video.js setup methods\n   * are used to initialize a video.\n   *\n   * After an instance has been created it can be accessed globally in two ways:\n   * 1. By calling `videojs('example_video_1');`\n   * 2. By using it directly via  `videojs.players.example_video_1;`\n   *\n   * @extends Component\n   */\n\n  var Player = /*#__PURE__*/function (_Component) {\n    inheritsLoose(Player, _Component);\n\n    /**\n     * Create an instance of this class.\n     *\n     * @param {Element} tag\n     *        The original video DOM element used for configuring options.\n     *\n     * @param {Object} [options]\n     *        Object of option names and values.\n     *\n     * @param {Component~ReadyCallback} [ready]\n     *        Ready callback function.\n     */\n    function Player(tag, options, ready) {\n      var _this;\n\n      // Make sure tag ID exists\n      tag.id = tag.id || options.id || \"vjs_video_\" + newGUID(); // Set Options\n      // The options argument overrides options set in the video tag\n      // which overrides globally set options.\n      // This latter part coincides with the load order\n      // (tag must exist before Player)\n\n      options = assign(Player.getTagSettings(tag), options); // Delay the initialization of children because we need to set up\n      // player properties first, and can't use `this` before `super()`\n\n      options.initChildren = false; // Same with creating the element\n\n      options.createEl = false; // don't auto mixin the evented mixin\n\n      options.evented = false; // we don't want the player to report touch activity on itself\n      // see enableTouchActivity in Component\n\n      options.reportTouchActivity = false; // If language is not set, get the closest lang attribute\n\n      if (!options.language) {\n        if (typeof tag.closest === 'function') {\n          var closest = tag.closest('[lang]');\n\n          if (closest && closest.getAttribute) {\n            options.language = closest.getAttribute('lang');\n          }\n        } else {\n          var element = tag;\n\n          while (element && element.nodeType === 1) {\n            if (getAttributes(element).hasOwnProperty('lang')) {\n              options.language = element.getAttribute('lang');\n              break;\n            }\n\n            element = element.parentNode;\n          }\n        }\n      } // Run base component initializing with new options\n\n\n      _this = _Component.call(this, null, options, ready) || this; // Create bound methods for document listeners.\n\n      _this.boundDocumentFullscreenChange_ = function (e) {\n        return _this.documentFullscreenChange_(e);\n      };\n\n      _this.boundFullWindowOnEscKey_ = function (e) {\n        return _this.fullWindowOnEscKey(e);\n      };\n\n      _this.boundUpdateStyleEl_ = function (e) {\n        return _this.updateStyleEl_(e);\n      };\n\n      _this.boundApplyInitTime_ = function (e) {\n        return _this.applyInitTime_(e);\n      };\n\n      _this.boundUpdateCurrentBreakpoint_ = function (e) {\n        return _this.updateCurrentBreakpoint_(e);\n      };\n\n      _this.boundHandleTechClick_ = function (e) {\n        return _this.handleTechClick_(e);\n      };\n\n      _this.boundHandleTechDoubleClick_ = function (e) {\n        return _this.handleTechDoubleClick_(e);\n      };\n\n      _this.boundHandleTechTouchStart_ = function (e) {\n        return _this.handleTechTouchStart_(e);\n      };\n\n      _this.boundHandleTechTouchMove_ = function (e) {\n        return _this.handleTechTouchMove_(e);\n      };\n\n      _this.boundHandleTechTouchEnd_ = function (e) {\n        return _this.handleTechTouchEnd_(e);\n      };\n\n      _this.boundHandleTechTap_ = function (e) {\n        return _this.handleTechTap_(e);\n      }; // default isFullscreen_ to false\n\n\n      _this.isFullscreen_ = false; // create logger\n\n      _this.log = createLogger(_this.id_); // Hold our own reference to fullscreen api so it can be mocked in tests\n\n      _this.fsApi_ = FullscreenApi; // Tracks when a tech changes the poster\n\n      _this.isPosterFromTech_ = false; // Holds callback info that gets queued when playback rate is zero\n      // and a seek is happening\n\n      _this.queuedCallbacks_ = []; // Turn off API access because we're loading a new tech that might load asynchronously\n\n      _this.isReady_ = false; // Init state hasStarted_\n\n      _this.hasStarted_ = false; // Init state userActive_\n\n      _this.userActive_ = false; // Init debugEnabled_\n\n      _this.debugEnabled_ = false; // Init state audioOnlyMode_\n\n      _this.audioOnlyMode_ = false; // Init state audioPosterMode_\n\n      _this.audioPosterMode_ = false; // Init state audioOnlyCache_\n\n      _this.audioOnlyCache_ = {\n        playerHeight: null,\n        hiddenChildren: []\n      }; // if the global option object was accidentally blown away by\n      // someone, bail early with an informative error\n\n      if (!_this.options_ || !_this.options_.techOrder || !_this.options_.techOrder.length) {\n        throw new Error('No techOrder specified. Did you overwrite ' + 'videojs.options instead of just changing the ' + 'properties you want to override?');\n      } // Store the original tag used to set options\n\n\n      _this.tag = tag; // Store the tag attributes used to restore html5 element\n\n      _this.tagAttributes = tag && getAttributes(tag); // Update current language\n\n      _this.language(_this.options_.language); // Update Supported Languages\n\n\n      if (options.languages) {\n        // Normalise player option languages to lowercase\n        var languagesToLower = {};\n        Object.getOwnPropertyNames(options.languages).forEach(function (name) {\n          languagesToLower[name.toLowerCase()] = options.languages[name];\n        });\n        _this.languages_ = languagesToLower;\n      } else {\n        _this.languages_ = Player.prototype.options_.languages;\n      }\n\n      _this.resetCache_(); // Set poster\n\n\n      _this.poster_ = options.poster || ''; // Set controls\n\n      _this.controls_ = !!options.controls; // Original tag settings stored in options\n      // now remove immediately so native controls don't flash.\n      // May be turned back on by HTML5 tech if nativeControlsForTouch is true\n\n      tag.controls = false;\n      tag.removeAttribute('controls');\n      _this.changingSrc_ = false;\n      _this.playCallbacks_ = [];\n      _this.playTerminatedQueue_ = []; // the attribute overrides the option\n\n      if (tag.hasAttribute('autoplay')) {\n        _this.autoplay(true);\n      } else {\n        // otherwise use the setter to validate and\n        // set the correct value.\n        _this.autoplay(_this.options_.autoplay);\n      } // check plugins\n\n\n      if (options.plugins) {\n        Object.keys(options.plugins).forEach(function (name) {\n          if (typeof _this[name] !== 'function') {\n            throw new Error(\"plugin \\\"\" + name + \"\\\" does not exist\");\n          }\n        });\n      }\n      /*\n       * Store the internal state of scrubbing\n       *\n       * @private\n       * @return {Boolean} True if the user is scrubbing\n       */\n\n\n      _this.scrubbing_ = false;\n      _this.el_ = _this.createEl(); // Make this an evented object and use `el_` as its event bus.\n\n      evented(assertThisInitialized(_this), {\n        eventBusKey: 'el_'\n      }); // listen to document and player fullscreenchange handlers so we receive those events\n      // before a user can receive them so we can update isFullscreen appropriately.\n      // make sure that we listen to fullscreenchange events before everything else to make sure that\n      // our isFullscreen method is updated properly for internal components as well as external.\n\n      if (_this.fsApi_.requestFullscreen) {\n        on(document, _this.fsApi_.fullscreenchange, _this.boundDocumentFullscreenChange_);\n\n        _this.on(_this.fsApi_.fullscreenchange, _this.boundDocumentFullscreenChange_);\n      }\n\n      if (_this.fluid_) {\n        _this.on(['playerreset', 'resize'], _this.boundUpdateStyleEl_);\n      } // We also want to pass the original player options to each component and plugin\n      // as well so they don't need to reach back into the player for options later.\n      // We also need to do another copy of this.options_ so we don't end up with\n      // an infinite loop.\n\n\n      var playerOptionsCopy = mergeOptions$3(_this.options_); // Load plugins\n\n      if (options.plugins) {\n        Object.keys(options.plugins).forEach(function (name) {\n          _this[name](options.plugins[name]);\n        });\n      } // Enable debug mode to fire debugon event for all plugins.\n\n\n      if (options.debug) {\n        _this.debug(true);\n      }\n\n      _this.options_.playerOptions = playerOptionsCopy;\n      _this.middleware_ = [];\n\n      _this.playbackRates(options.playbackRates);\n\n      _this.initChildren(); // Set isAudio based on whether or not an audio tag was used\n\n\n      _this.isAudio(tag.nodeName.toLowerCase() === 'audio'); // Update controls className. Can't do this when the controls are initially\n      // set because the element doesn't exist yet.\n\n\n      if (_this.controls()) {\n        _this.addClass('vjs-controls-enabled');\n      } else {\n        _this.addClass('vjs-controls-disabled');\n      } // Set ARIA label and region role depending on player type\n\n\n      _this.el_.setAttribute('role', 'region');\n\n      if (_this.isAudio()) {\n        _this.el_.setAttribute('aria-label', _this.localize('Audio Player'));\n      } else {\n        _this.el_.setAttribute('aria-label', _this.localize('Video Player'));\n      }\n\n      if (_this.isAudio()) {\n        _this.addClass('vjs-audio');\n      }\n\n      if (_this.flexNotSupported_()) {\n        _this.addClass('vjs-no-flex');\n      } // TODO: Make this smarter. Toggle user state between touching/mousing\n      // using events, since devices can have both touch and mouse events.\n      // TODO: Make this check be performed again when the window switches between monitors\n      // (See https://github.com/videojs/video.js/issues/5683)\n\n\n      if (TOUCH_ENABLED) {\n        _this.addClass('vjs-touch-enabled');\n      } // iOS Safari has broken hover handling\n\n\n      if (!IS_IOS) {\n        _this.addClass('vjs-workinghover');\n      } // Make player easily findable by ID\n\n\n      Player.players[_this.id_] = assertThisInitialized(_this); // Add a major version class to aid css in plugins\n\n      var majorVersion = version$5.split('.')[0];\n\n      _this.addClass(\"vjs-v\" + majorVersion); // When the player is first initialized, trigger activity so components\n      // like the control bar show themselves if needed\n\n\n      _this.userActive(true);\n\n      _this.reportUserActivity();\n\n      _this.one('play', function (e) {\n        return _this.listenForUserActivity_(e);\n      });\n\n      _this.on('stageclick', function (e) {\n        return _this.handleStageClick_(e);\n      });\n\n      _this.on('keydown', function (e) {\n        return _this.handleKeyDown(e);\n      });\n\n      _this.on('languagechange', function (e) {\n        return _this.handleLanguagechange(e);\n      });\n\n      _this.breakpoints(_this.options_.breakpoints);\n\n      _this.responsive(_this.options_.responsive); // Calling both the audio mode methods after the player is fully\n      // setup to be able to listen to the events triggered by them\n\n\n      _this.on('ready', function () {\n        // Calling the audioPosterMode method first so that\n        // the audioOnlyMode can take precedence when both options are set to true\n        _this.audioPosterMode(_this.options_.audioPosterMode);\n\n        _this.audioOnlyMode(_this.options_.audioOnlyMode);\n      });\n\n      return _this;\n    }\n    /**\n     * Destroys the video player and does any necessary cleanup.\n     *\n     * This is especially helpful if you are dynamically adding and removing videos\n     * to/from the DOM.\n     *\n     * @fires Player#dispose\n     */\n\n\n    var _proto = Player.prototype;\n\n    _proto.dispose = function dispose() {\n      var _this2 = this;\n\n      /**\n       * Called when the player is being disposed of.\n       *\n       * @event Player#dispose\n       * @type {EventTarget~Event}\n       */\n      this.trigger('dispose'); // prevent dispose from being called twice\n\n      this.off('dispose'); // Make sure all player-specific document listeners are unbound. This is\n\n      off(document, this.fsApi_.fullscreenchange, this.boundDocumentFullscreenChange_);\n      off(document, 'keydown', this.boundFullWindowOnEscKey_);\n\n      if (this.styleEl_ && this.styleEl_.parentNode) {\n        this.styleEl_.parentNode.removeChild(this.styleEl_);\n        this.styleEl_ = null;\n      } // Kill reference to this player\n\n\n      Player.players[this.id_] = null;\n\n      if (this.tag && this.tag.player) {\n        this.tag.player = null;\n      }\n\n      if (this.el_ && this.el_.player) {\n        this.el_.player = null;\n      }\n\n      if (this.tech_) {\n        this.tech_.dispose();\n        this.isPosterFromTech_ = false;\n        this.poster_ = '';\n      }\n\n      if (this.playerElIngest_) {\n        this.playerElIngest_ = null;\n      }\n\n      if (this.tag) {\n        this.tag = null;\n      }\n\n      clearCacheForPlayer(this); // remove all event handlers for track lists\n      // all tracks and track listeners are removed on\n      // tech dispose\n\n      ALL.names.forEach(function (name) {\n        var props = ALL[name];\n\n        var list = _this2[props.getterName](); // if it is not a native list\n        // we have to manually remove event listeners\n\n\n        if (list && list.off) {\n          list.off();\n        }\n      }); // the actual .el_ is removed here, or replaced if\n\n      _Component.prototype.dispose.call(this, {\n        restoreEl: this.options_.restoreEl\n      });\n    }\n    /**\n     * Create the `Player`'s DOM element.\n     *\n     * @return {Element}\n     *         The DOM element that gets created.\n     */\n    ;\n\n    _proto.createEl = function createEl() {\n      var tag = this.tag;\n      var el;\n      var playerElIngest = this.playerElIngest_ = tag.parentNode && tag.parentNode.hasAttribute && tag.parentNode.hasAttribute('data-vjs-player');\n      var divEmbed = this.tag.tagName.toLowerCase() === 'video-js';\n\n      if (playerElIngest) {\n        el = this.el_ = tag.parentNode;\n      } else if (!divEmbed) {\n        el = this.el_ = _Component.prototype.createEl.call(this, 'div');\n      } // Copy over all the attributes from the tag, including ID and class\n      // ID will now reference player box, not the video tag\n\n\n      var attrs = getAttributes(tag);\n\n      if (divEmbed) {\n        el = this.el_ = tag;\n        tag = this.tag = document.createElement('video');\n\n        while (el.children.length) {\n          tag.appendChild(el.firstChild);\n        }\n\n        if (!hasClass(el, 'video-js')) {\n          addClass(el, 'video-js');\n        }\n\n        el.appendChild(tag);\n        playerElIngest = this.playerElIngest_ = el; // move properties over from our custom `video-js` element\n        // to our new `video` element. This will move things like\n        // `src` or `controls` that were set via js before the player\n        // was initialized.\n\n        Object.keys(el).forEach(function (k) {\n          try {\n            tag[k] = el[k];\n          } catch (e) {// we got a a property like outerHTML which we can't actually copy, ignore it\n          }\n        });\n      } // set tabindex to -1 to remove the video element from the focus order\n\n\n      tag.setAttribute('tabindex', '-1');\n      attrs.tabindex = '-1'; // Workaround for #4583 (JAWS+IE doesn't announce BPB or play button), and\n      // for the same issue with Chrome (on Windows) with JAWS.\n      // See https://github.com/FreedomScientific/VFO-standards-support/issues/78\n      // Note that we can't detect if JAWS is being used, but this ARIA attribute\n      //  doesn't change behavior of IE11 or Chrome if JAWS is not being used\n\n      if (IE_VERSION || IS_CHROME && IS_WINDOWS) {\n        tag.setAttribute('role', 'application');\n        attrs.role = 'application';\n      } // Remove width/height attrs from tag so CSS can make it 100% width/height\n\n\n      tag.removeAttribute('width');\n      tag.removeAttribute('height');\n\n      if ('width' in attrs) {\n        delete attrs.width;\n      }\n\n      if ('height' in attrs) {\n        delete attrs.height;\n      }\n\n      Object.getOwnPropertyNames(attrs).forEach(function (attr) {\n        // don't copy over the class attribute to the player element when we're in a div embed\n        // the class is already set up properly in the divEmbed case\n        // and we want to make sure that the `video-js` class doesn't get lost\n        if (!(divEmbed && attr === 'class')) {\n          el.setAttribute(attr, attrs[attr]);\n        }\n\n        if (divEmbed) {\n          tag.setAttribute(attr, attrs[attr]);\n        }\n      }); // Update tag id/class for use as HTML5 playback tech\n      // Might think we should do this after embedding in container so .vjs-tech class\n      // doesn't flash 100% width/height, but class only applies with .video-js parent\n\n      tag.playerId = tag.id;\n      tag.id += '_html5_api';\n      tag.className = 'vjs-tech'; // Make player findable on elements\n\n      tag.player = el.player = this; // Default state of video is paused\n\n      this.addClass('vjs-paused'); // Add a style element in the player that we'll use to set the width/height\n      // of the player in a way that's still overrideable by CSS, just like the\n      // video element\n\n      if (window.VIDEOJS_NO_DYNAMIC_STYLE !== true) {\n        this.styleEl_ = createStyleElement('vjs-styles-dimensions');\n        var defaultsStyleEl = $('.vjs-styles-defaults');\n        var head = $('head');\n        head.insertBefore(this.styleEl_, defaultsStyleEl ? defaultsStyleEl.nextSibling : head.firstChild);\n      }\n\n      this.fill_ = false;\n      this.fluid_ = false; // Pass in the width/height/aspectRatio options which will update the style el\n\n      this.width(this.options_.width);\n      this.height(this.options_.height);\n      this.fill(this.options_.fill);\n      this.fluid(this.options_.fluid);\n      this.aspectRatio(this.options_.aspectRatio); // support both crossOrigin and crossorigin to reduce confusion and issues around the name\n\n      this.crossOrigin(this.options_.crossOrigin || this.options_.crossorigin); // Hide any links within the video/audio tag,\n      // because IE doesn't hide them completely from screen readers.\n\n      var links = tag.getElementsByTagName('a');\n\n      for (var i = 0; i < links.length; i++) {\n        var linkEl = links.item(i);\n        addClass(linkEl, 'vjs-hidden');\n        linkEl.setAttribute('hidden', 'hidden');\n      } // insertElFirst seems to cause the networkState to flicker from 3 to 2, so\n      // keep track of the original for later so we can know if the source originally failed\n\n\n      tag.initNetworkState_ = tag.networkState; // Wrap video tag in div (el/box) container\n\n      if (tag.parentNode && !playerElIngest) {\n        tag.parentNode.insertBefore(el, tag);\n      } // insert the tag as the first child of the player element\n      // then manually add it to the children array so that this.addChild\n      // will work properly for other components\n      //\n      // Breaks iPhone, fixed in HTML5 setup.\n\n\n      prependTo(tag, el);\n      this.children_.unshift(tag); // Set lang attr on player to ensure CSS :lang() in consistent with player\n      // if it's been set to something different to the doc\n\n      this.el_.setAttribute('lang', this.language_);\n      this.el_.setAttribute('translate', 'no');\n      this.el_ = el;\n      return el;\n    }\n    /**\n     * Get or set the `Player`'s crossOrigin option. For the HTML5 player, this\n     * sets the `crossOrigin` property on the `<video>` tag to control the CORS\n     * behavior.\n     *\n     * @see [Video Element Attributes]{@link https://developer.mozilla.org/en-US/docs/Web/HTML/Element/video#attr-crossorigin}\n     *\n     * @param {string} [value]\n     *        The value to set the `Player`'s crossOrigin to. If an argument is\n     *        given, must be one of `anonymous` or `use-credentials`.\n     *\n     * @return {string|undefined}\n     *         - The current crossOrigin value of the `Player` when getting.\n     *         - undefined when setting\n     */\n    ;\n\n    _proto.crossOrigin = function crossOrigin(value) {\n      if (!value) {\n        return this.techGet_('crossOrigin');\n      }\n\n      if (value !== 'anonymous' && value !== 'use-credentials') {\n        log$1.warn(\"crossOrigin must be \\\"anonymous\\\" or \\\"use-credentials\\\", given \\\"\" + value + \"\\\"\");\n        return;\n      }\n\n      this.techCall_('setCrossOrigin', value);\n      return;\n    }\n    /**\n     * A getter/setter for the `Player`'s width. Returns the player's configured value.\n     * To get the current width use `currentWidth()`.\n     *\n     * @param {number} [value]\n     *        The value to set the `Player`'s width to.\n     *\n     * @return {number}\n     *         The current width of the `Player` when getting.\n     */\n    ;\n\n    _proto.width = function width(value) {\n      return this.dimension('width', value);\n    }\n    /**\n     * A getter/setter for the `Player`'s height. Returns the player's configured value.\n     * To get the current height use `currentheight()`.\n     *\n     * @param {number} [value]\n     *        The value to set the `Player`'s heigth to.\n     *\n     * @return {number}\n     *         The current height of the `Player` when getting.\n     */\n    ;\n\n    _proto.height = function height(value) {\n      return this.dimension('height', value);\n    }\n    /**\n     * A getter/setter for the `Player`'s width & height.\n     *\n     * @param {string} dimension\n     *        This string can be:\n     *        - 'width'\n     *        - 'height'\n     *\n     * @param {number} [value]\n     *        Value for dimension specified in the first argument.\n     *\n     * @return {number}\n     *         The dimension arguments value when getting (width/height).\n     */\n    ;\n\n    _proto.dimension = function dimension(_dimension, value) {\n      var privDimension = _dimension + '_';\n\n      if (value === undefined) {\n        return this[privDimension] || 0;\n      }\n\n      if (value === '' || value === 'auto') {\n        // If an empty string is given, reset the dimension to be automatic\n        this[privDimension] = undefined;\n        this.updateStyleEl_();\n        return;\n      }\n\n      var parsedVal = parseFloat(value);\n\n      if (isNaN(parsedVal)) {\n        log$1.error(\"Improper value \\\"\" + value + \"\\\" supplied for for \" + _dimension);\n        return;\n      }\n\n      this[privDimension] = parsedVal;\n      this.updateStyleEl_();\n    }\n    /**\n     * A getter/setter/toggler for the vjs-fluid `className` on the `Player`.\n     *\n     * Turning this on will turn off fill mode.\n     *\n     * @param {boolean} [bool]\n     *        - A value of true adds the class.\n     *        - A value of false removes the class.\n     *        - No value will be a getter.\n     *\n     * @return {boolean|undefined}\n     *         - The value of fluid when getting.\n     *         - `undefined` when setting.\n     */\n    ;\n\n    _proto.fluid = function fluid(bool) {\n      var _this3 = this;\n\n      if (bool === undefined) {\n        return !!this.fluid_;\n      }\n\n      this.fluid_ = !!bool;\n\n      if (isEvented(this)) {\n        this.off(['playerreset', 'resize'], this.boundUpdateStyleEl_);\n      }\n\n      if (bool) {\n        this.addClass('vjs-fluid');\n        this.fill(false);\n        addEventedCallback(this, function () {\n          _this3.on(['playerreset', 'resize'], _this3.boundUpdateStyleEl_);\n        });\n      } else {\n        this.removeClass('vjs-fluid');\n      }\n\n      this.updateStyleEl_();\n    }\n    /**\n     * A getter/setter/toggler for the vjs-fill `className` on the `Player`.\n     *\n     * Turning this on will turn off fluid mode.\n     *\n     * @param {boolean} [bool]\n     *        - A value of true adds the class.\n     *        - A value of false removes the class.\n     *        - No value will be a getter.\n     *\n     * @return {boolean|undefined}\n     *         - The value of fluid when getting.\n     *         - `undefined` when setting.\n     */\n    ;\n\n    _proto.fill = function fill(bool) {\n      if (bool === undefined) {\n        return !!this.fill_;\n      }\n\n      this.fill_ = !!bool;\n\n      if (bool) {\n        this.addClass('vjs-fill');\n        this.fluid(false);\n      } else {\n        this.removeClass('vjs-fill');\n      }\n    }\n    /**\n     * Get/Set the aspect ratio\n     *\n     * @param {string} [ratio]\n     *        Aspect ratio for player\n     *\n     * @return {string|undefined}\n     *         returns the current aspect ratio when getting\n     */\n\n    /**\n     * A getter/setter for the `Player`'s aspect ratio.\n     *\n     * @param {string} [ratio]\n     *        The value to set the `Player`'s aspect ratio to.\n     *\n     * @return {string|undefined}\n     *         - The current aspect ratio of the `Player` when getting.\n     *         - undefined when setting\n     */\n    ;\n\n    _proto.aspectRatio = function aspectRatio(ratio) {\n      if (ratio === undefined) {\n        return this.aspectRatio_;\n      } // Check for width:height format\n\n\n      if (!/^\\d+\\:\\d+$/.test(ratio)) {\n        throw new Error('Improper value supplied for aspect ratio. The format should be width:height, for example 16:9.');\n      }\n\n      this.aspectRatio_ = ratio; // We're assuming if you set an aspect ratio you want fluid mode,\n      // because in fixed mode you could calculate width and height yourself.\n\n      this.fluid(true);\n      this.updateStyleEl_();\n    }\n    /**\n     * Update styles of the `Player` element (height, width and aspect ratio).\n     *\n     * @private\n     * @listens Tech#loadedmetadata\n     */\n    ;\n\n    _proto.updateStyleEl_ = function updateStyleEl_() {\n      if (window.VIDEOJS_NO_DYNAMIC_STYLE === true) {\n        var _width = typeof this.width_ === 'number' ? this.width_ : this.options_.width;\n\n        var _height = typeof this.height_ === 'number' ? this.height_ : this.options_.height;\n\n        var techEl = this.tech_ && this.tech_.el();\n\n        if (techEl) {\n          if (_width >= 0) {\n            techEl.width = _width;\n          }\n\n          if (_height >= 0) {\n            techEl.height = _height;\n          }\n        }\n\n        return;\n      }\n\n      var width;\n      var height;\n      var aspectRatio;\n      var idClass; // The aspect ratio is either used directly or to calculate width and height.\n\n      if (this.aspectRatio_ !== undefined && this.aspectRatio_ !== 'auto') {\n        // Use any aspectRatio that's been specifically set\n        aspectRatio = this.aspectRatio_;\n      } else if (this.videoWidth() > 0) {\n        // Otherwise try to get the aspect ratio from the video metadata\n        aspectRatio = this.videoWidth() + ':' + this.videoHeight();\n      } else {\n        // Or use a default. The video element's is 2:1, but 16:9 is more common.\n        aspectRatio = '16:9';\n      } // Get the ratio as a decimal we can use to calculate dimensions\n\n\n      var ratioParts = aspectRatio.split(':');\n      var ratioMultiplier = ratioParts[1] / ratioParts[0];\n\n      if (this.width_ !== undefined) {\n        // Use any width that's been specifically set\n        width = this.width_;\n      } else if (this.height_ !== undefined) {\n        // Or calulate the width from the aspect ratio if a height has been set\n        width = this.height_ / ratioMultiplier;\n      } else {\n        // Or use the video's metadata, or use the video el's default of 300\n        width = this.videoWidth() || 300;\n      }\n\n      if (this.height_ !== undefined) {\n        // Use any height that's been specifically set\n        height = this.height_;\n      } else {\n        // Otherwise calculate the height from the ratio and the width\n        height = width * ratioMultiplier;\n      } // Ensure the CSS class is valid by starting with an alpha character\n\n\n      if (/^[^a-zA-Z]/.test(this.id())) {\n        idClass = 'dimensions-' + this.id();\n      } else {\n        idClass = this.id() + '-dimensions';\n      } // Ensure the right class is still on the player for the style element\n\n\n      this.addClass(idClass);\n      setTextContent(this.styleEl_, \"\\n      .\" + idClass + \" {\\n        width: \" + width + \"px;\\n        height: \" + height + \"px;\\n      }\\n\\n      .\" + idClass + \".vjs-fluid:not(.vjs-audio-only-mode) {\\n        padding-top: \" + ratioMultiplier * 100 + \"%;\\n      }\\n    \");\n    }\n    /**\n     * Load/Create an instance of playback {@link Tech} including element\n     * and API methods. Then append the `Tech` element in `Player` as a child.\n     *\n     * @param {string} techName\n     *        name of the playback technology\n     *\n     * @param {string} source\n     *        video source\n     *\n     * @private\n     */\n    ;\n\n    _proto.loadTech_ = function loadTech_(techName, source) {\n      var _this4 = this;\n\n      // Pause and remove current playback technology\n      if (this.tech_) {\n        this.unloadTech_();\n      }\n\n      var titleTechName = toTitleCase$1(techName);\n      var camelTechName = techName.charAt(0).toLowerCase() + techName.slice(1); // get rid of the HTML5 video tag as soon as we are using another tech\n\n      if (titleTechName !== 'Html5' && this.tag) {\n        Tech.getTech('Html5').disposeMediaElement(this.tag);\n        this.tag.player = null;\n        this.tag = null;\n      }\n\n      this.techName_ = titleTechName; // Turn off API access because we're loading a new tech that might load asynchronously\n\n      this.isReady_ = false;\n      var autoplay = this.autoplay(); // if autoplay is a string (or `true` with normalizeAutoplay: true) we pass false to the tech\n      // because the player is going to handle autoplay on `loadstart`\n\n      if (typeof this.autoplay() === 'string' || this.autoplay() === true && this.options_.normalizeAutoplay) {\n        autoplay = false;\n      } // Grab tech-specific options from player options and add source and parent element to use.\n\n\n      var techOptions = {\n        source: source,\n        autoplay: autoplay,\n        'nativeControlsForTouch': this.options_.nativeControlsForTouch,\n        'playerId': this.id(),\n        'techId': this.id() + \"_\" + camelTechName + \"_api\",\n        'playsinline': this.options_.playsinline,\n        'preload': this.options_.preload,\n        'loop': this.options_.loop,\n        'disablePictureInPicture': this.options_.disablePictureInPicture,\n        'muted': this.options_.muted,\n        'poster': this.poster(),\n        'language': this.language(),\n        'playerElIngest': this.playerElIngest_ || false,\n        'vtt.js': this.options_['vtt.js'],\n        'canOverridePoster': !!this.options_.techCanOverridePoster,\n        'enableSourceset': this.options_.enableSourceset,\n        'Promise': this.options_.Promise\n      };\n      ALL.names.forEach(function (name) {\n        var props = ALL[name];\n        techOptions[props.getterName] = _this4[props.privateName];\n      });\n      assign(techOptions, this.options_[titleTechName]);\n      assign(techOptions, this.options_[camelTechName]);\n      assign(techOptions, this.options_[techName.toLowerCase()]);\n\n      if (this.tag) {\n        techOptions.tag = this.tag;\n      }\n\n      if (source && source.src === this.cache_.src && this.cache_.currentTime > 0) {\n        techOptions.startTime = this.cache_.currentTime;\n      } // Initialize tech instance\n\n\n      var TechClass = Tech.getTech(techName);\n\n      if (!TechClass) {\n        throw new Error(\"No Tech named '\" + titleTechName + \"' exists! '\" + titleTechName + \"' should be registered using videojs.registerTech()'\");\n      }\n\n      this.tech_ = new TechClass(techOptions); // player.triggerReady is always async, so don't need this to be async\n\n      this.tech_.ready(bind(this, this.handleTechReady_), true);\n      textTrackConverter.jsonToTextTracks(this.textTracksJson_ || [], this.tech_); // Listen to all HTML5-defined events and trigger them on the player\n\n      TECH_EVENTS_RETRIGGER.forEach(function (event) {\n        _this4.on(_this4.tech_, event, function (e) {\n          return _this4[\"handleTech\" + toTitleCase$1(event) + \"_\"](e);\n        });\n      });\n      Object.keys(TECH_EVENTS_QUEUE).forEach(function (event) {\n        _this4.on(_this4.tech_, event, function (eventObj) {\n          if (_this4.tech_.playbackRate() === 0 && _this4.tech_.seeking()) {\n            _this4.queuedCallbacks_.push({\n              callback: _this4[\"handleTech\" + TECH_EVENTS_QUEUE[event] + \"_\"].bind(_this4),\n              event: eventObj\n            });\n\n            return;\n          }\n\n          _this4[\"handleTech\" + TECH_EVENTS_QUEUE[event] + \"_\"](eventObj);\n        });\n      });\n      this.on(this.tech_, 'loadstart', function (e) {\n        return _this4.handleTechLoadStart_(e);\n      });\n      this.on(this.tech_, 'sourceset', function (e) {\n        return _this4.handleTechSourceset_(e);\n      });\n      this.on(this.tech_, 'waiting', function (e) {\n        return _this4.handleTechWaiting_(e);\n      });\n      this.on(this.tech_, 'ended', function (e) {\n        return _this4.handleTechEnded_(e);\n      });\n      this.on(this.tech_, 'seeking', function (e) {\n        return _this4.handleTechSeeking_(e);\n      });\n      this.on(this.tech_, 'play', function (e) {\n        return _this4.handleTechPlay_(e);\n      });\n      this.on(this.tech_, 'firstplay', function (e) {\n        return _this4.handleTechFirstPlay_(e);\n      });\n      this.on(this.tech_, 'pause', function (e) {\n        return _this4.handleTechPause_(e);\n      });\n      this.on(this.tech_, 'durationchange', function (e) {\n        return _this4.handleTechDurationChange_(e);\n      });\n      this.on(this.tech_, 'fullscreenchange', function (e, data) {\n        return _this4.handleTechFullscreenChange_(e, data);\n      });\n      this.on(this.tech_, 'fullscreenerror', function (e, err) {\n        return _this4.handleTechFullscreenError_(e, err);\n      });\n      this.on(this.tech_, 'enterpictureinpicture', function (e) {\n        return _this4.handleTechEnterPictureInPicture_(e);\n      });\n      this.on(this.tech_, 'leavepictureinpicture', function (e) {\n        return _this4.handleTechLeavePictureInPicture_(e);\n      });\n      this.on(this.tech_, 'error', function (e) {\n        return _this4.handleTechError_(e);\n      });\n      this.on(this.tech_, 'posterchange', function (e) {\n        return _this4.handleTechPosterChange_(e);\n      });\n      this.on(this.tech_, 'textdata', function (e) {\n        return _this4.handleTechTextData_(e);\n      });\n      this.on(this.tech_, 'ratechange', function (e) {\n        return _this4.handleTechRateChange_(e);\n      });\n      this.on(this.tech_, 'loadedmetadata', this.boundUpdateStyleEl_);\n      this.usingNativeControls(this.techGet_('controls'));\n\n      if (this.controls() && !this.usingNativeControls()) {\n        this.addTechControlsListeners_();\n      } // Add the tech element in the DOM if it was not already there\n      // Make sure to not insert the original video element if using Html5\n\n\n      if (this.tech_.el().parentNode !== this.el() && (titleTechName !== 'Html5' || !this.tag)) {\n        prependTo(this.tech_.el(), this.el());\n      } // Get rid of the original video tag reference after the first tech is loaded\n\n\n      if (this.tag) {\n        this.tag.player = null;\n        this.tag = null;\n      }\n    }\n    /**\n     * Unload and dispose of the current playback {@link Tech}.\n     *\n     * @private\n     */\n    ;\n\n    _proto.unloadTech_ = function unloadTech_() {\n      var _this5 = this;\n\n      // Save the current text tracks so that we can reuse the same text tracks with the next tech\n      ALL.names.forEach(function (name) {\n        var props = ALL[name];\n        _this5[props.privateName] = _this5[props.getterName]();\n      });\n      this.textTracksJson_ = textTrackConverter.textTracksToJson(this.tech_);\n      this.isReady_ = false;\n      this.tech_.dispose();\n      this.tech_ = false;\n\n      if (this.isPosterFromTech_) {\n        this.poster_ = '';\n        this.trigger('posterchange');\n      }\n\n      this.isPosterFromTech_ = false;\n    }\n    /**\n     * Return a reference to the current {@link Tech}.\n     * It will print a warning by default about the danger of using the tech directly\n     * but any argument that is passed in will silence the warning.\n     *\n     * @param {*} [safety]\n     *        Anything passed in to silence the warning\n     *\n     * @return {Tech}\n     *         The Tech\n     */\n    ;\n\n    _proto.tech = function tech(safety) {\n      if (safety === undefined) {\n        log$1.warn('Using the tech directly can be dangerous. I hope you know what you\\'re doing.\\n' + 'See https://github.com/videojs/video.js/issues/2617 for more info.\\n');\n      }\n\n      return this.tech_;\n    }\n    /**\n     * Set up click and touch listeners for the playback element\n     *\n     * - On desktops: a click on the video itself will toggle playback\n     * - On mobile devices: a click on the video toggles controls\n     *   which is done by toggling the user state between active and\n     *   inactive\n     * - A tap can signal that a user has become active or has become inactive\n     *   e.g. a quick tap on an iPhone movie should reveal the controls. Another\n     *   quick tap should hide them again (signaling the user is in an inactive\n     *   viewing state)\n     * - In addition to this, we still want the user to be considered inactive after\n     *   a few seconds of inactivity.\n     *\n     * > Note: the only part of iOS interaction we can't mimic with this setup\n     * is a touch and hold on the video element counting as activity in order to\n     * keep the controls showing, but that shouldn't be an issue. A touch and hold\n     * on any controls will still keep the user active\n     *\n     * @private\n     */\n    ;\n\n    _proto.addTechControlsListeners_ = function addTechControlsListeners_() {\n      // Make sure to remove all the previous listeners in case we are called multiple times.\n      this.removeTechControlsListeners_();\n      this.on(this.tech_, 'click', this.boundHandleTechClick_);\n      this.on(this.tech_, 'dblclick', this.boundHandleTechDoubleClick_); // If the controls were hidden we don't want that to change without a tap event\n      // so we'll check if the controls were already showing before reporting user\n      // activity\n\n      this.on(this.tech_, 'touchstart', this.boundHandleTechTouchStart_);\n      this.on(this.tech_, 'touchmove', this.boundHandleTechTouchMove_);\n      this.on(this.tech_, 'touchend', this.boundHandleTechTouchEnd_); // The tap listener needs to come after the touchend listener because the tap\n      // listener cancels out any reportedUserActivity when setting userActive(false)\n\n      this.on(this.tech_, 'tap', this.boundHandleTechTap_);\n    }\n    /**\n     * Remove the listeners used for click and tap controls. This is needed for\n     * toggling to controls disabled, where a tap/touch should do nothing.\n     *\n     * @private\n     */\n    ;\n\n    _proto.removeTechControlsListeners_ = function removeTechControlsListeners_() {\n      // We don't want to just use `this.off()` because there might be other needed\n      // listeners added by techs that extend this.\n      this.off(this.tech_, 'tap', this.boundHandleTechTap_);\n      this.off(this.tech_, 'touchstart', this.boundHandleTechTouchStart_);\n      this.off(this.tech_, 'touchmove', this.boundHandleTechTouchMove_);\n      this.off(this.tech_, 'touchend', this.boundHandleTechTouchEnd_);\n      this.off(this.tech_, 'click', this.boundHandleTechClick_);\n      this.off(this.tech_, 'dblclick', this.boundHandleTechDoubleClick_);\n    }\n    /**\n     * Player waits for the tech to be ready\n     *\n     * @private\n     */\n    ;\n\n    _proto.handleTechReady_ = function handleTechReady_() {\n      this.triggerReady(); // Keep the same volume as before\n\n      if (this.cache_.volume) {\n        this.techCall_('setVolume', this.cache_.volume);\n      } // Look if the tech found a higher resolution poster while loading\n\n\n      this.handleTechPosterChange_(); // Update the duration if available\n\n      this.handleTechDurationChange_();\n    }\n    /**\n     * Retrigger the `loadstart` event that was triggered by the {@link Tech}. This\n     * function will also trigger {@link Player#firstplay} if it is the first loadstart\n     * for a video.\n     *\n     * @fires Player#loadstart\n     * @fires Player#firstplay\n     * @listens Tech#loadstart\n     * @private\n     */\n    ;\n\n    _proto.handleTechLoadStart_ = function handleTechLoadStart_() {\n      // TODO: Update to use `emptied` event instead. See #1277.\n      this.removeClass('vjs-ended');\n      this.removeClass('vjs-seeking'); // reset the error state\n\n      this.error(null); // Update the duration\n\n      this.handleTechDurationChange_(); // If it's already playing we want to trigger a firstplay event now.\n      // The firstplay event relies on both the play and loadstart events\n      // which can happen in any order for a new source\n\n      if (!this.paused()) {\n        /**\n         * Fired when the user agent begins looking for media data\n         *\n         * @event Player#loadstart\n         * @type {EventTarget~Event}\n         */\n        this.trigger('loadstart');\n        this.trigger('firstplay');\n      } else {\n        // reset the hasStarted state\n        this.hasStarted(false);\n        this.trigger('loadstart');\n      } // autoplay happens after loadstart for the browser,\n      // so we mimic that behavior\n\n\n      this.manualAutoplay_(this.autoplay() === true && this.options_.normalizeAutoplay ? 'play' : this.autoplay());\n    }\n    /**\n     * Handle autoplay string values, rather than the typical boolean\n     * values that should be handled by the tech. Note that this is not\n     * part of any specification. Valid values and what they do can be\n     * found on the autoplay getter at Player#autoplay()\n     */\n    ;\n\n    _proto.manualAutoplay_ = function manualAutoplay_(type) {\n      var _this6 = this;\n\n      if (!this.tech_ || typeof type !== 'string') {\n        return;\n      } // Save original muted() value, set muted to true, and attempt to play().\n      // On promise rejection, restore muted from saved value\n\n\n      var resolveMuted = function resolveMuted() {\n        var previouslyMuted = _this6.muted();\n\n        _this6.muted(true);\n\n        var restoreMuted = function restoreMuted() {\n          _this6.muted(previouslyMuted);\n        }; // restore muted on play terminatation\n\n\n        _this6.playTerminatedQueue_.push(restoreMuted);\n\n        var mutedPromise = _this6.play();\n\n        if (!isPromise(mutedPromise)) {\n          return;\n        }\n\n        return mutedPromise[\"catch\"](function (err) {\n          restoreMuted();\n          throw new Error(\"Rejection at manualAutoplay. Restoring muted value. \" + (err ? err : ''));\n        });\n      };\n\n      var promise; // if muted defaults to true\n      // the only thing we can do is call play\n\n      if (type === 'any' && !this.muted()) {\n        promise = this.play();\n\n        if (isPromise(promise)) {\n          promise = promise[\"catch\"](resolveMuted);\n        }\n      } else if (type === 'muted' && !this.muted()) {\n        promise = resolveMuted();\n      } else {\n        promise = this.play();\n      }\n\n      if (!isPromise(promise)) {\n        return;\n      }\n\n      return promise.then(function () {\n        _this6.trigger({\n          type: 'autoplay-success',\n          autoplay: type\n        });\n      })[\"catch\"](function () {\n        _this6.trigger({\n          type: 'autoplay-failure',\n          autoplay: type\n        });\n      });\n    }\n    /**\n     * Update the internal source caches so that we return the correct source from\n     * `src()`, `currentSource()`, and `currentSources()`.\n     *\n     * > Note: `currentSources` will not be updated if the source that is passed in exists\n     *         in the current `currentSources` cache.\n     *\n     *\n     * @param {Tech~SourceObject} srcObj\n     *        A string or object source to update our caches to.\n     */\n    ;\n\n    _proto.updateSourceCaches_ = function updateSourceCaches_(srcObj) {\n      if (srcObj === void 0) {\n        srcObj = '';\n      }\n\n      var src = srcObj;\n      var type = '';\n\n      if (typeof src !== 'string') {\n        src = srcObj.src;\n        type = srcObj.type;\n      } // make sure all the caches are set to default values\n      // to prevent null checking\n\n\n      this.cache_.source = this.cache_.source || {};\n      this.cache_.sources = this.cache_.sources || []; // try to get the type of the src that was passed in\n\n      if (src && !type) {\n        type = findMimetype(this, src);\n      } // update `currentSource` cache always\n\n\n      this.cache_.source = mergeOptions$3({}, srcObj, {\n        src: src,\n        type: type\n      });\n      var matchingSources = this.cache_.sources.filter(function (s) {\n        return s.src && s.src === src;\n      });\n      var sourceElSources = [];\n      var sourceEls = this.$$('source');\n      var matchingSourceEls = [];\n\n      for (var i = 0; i < sourceEls.length; i++) {\n        var sourceObj = getAttributes(sourceEls[i]);\n        sourceElSources.push(sourceObj);\n\n        if (sourceObj.src && sourceObj.src === src) {\n          matchingSourceEls.push(sourceObj.src);\n        }\n      } // if we have matching source els but not matching sources\n      // the current source cache is not up to date\n\n\n      if (matchingSourceEls.length && !matchingSources.length) {\n        this.cache_.sources = sourceElSources; // if we don't have matching source or source els set the\n        // sources cache to the `currentSource` cache\n      } else if (!matchingSources.length) {\n        this.cache_.sources = [this.cache_.source];\n      } // update the tech `src` cache\n\n\n      this.cache_.src = src;\n    }\n    /**\n     * *EXPERIMENTAL* Fired when the source is set or changed on the {@link Tech}\n     * causing the media element to reload.\n     *\n     * It will fire for the initial source and each subsequent source.\n     * This event is a custom event from Video.js and is triggered by the {@link Tech}.\n     *\n     * The event object for this event contains a `src` property that will contain the source\n     * that was available when the event was triggered. This is generally only necessary if Video.js\n     * is switching techs while the source was being changed.\n     *\n     * It is also fired when `load` is called on the player (or media element)\n     * because the {@link https://html.spec.whatwg.org/multipage/media.html#dom-media-load|specification for `load`}\n     * says that the resource selection algorithm needs to be aborted and restarted.\n     * In this case, it is very likely that the `src` property will be set to the\n     * empty string `\"\"` to indicate we do not know what the source will be but\n     * that it is changing.\n     *\n     * *This event is currently still experimental and may change in minor releases.*\n     * __To use this, pass `enableSourceset` option to the player.__\n     *\n     * @event Player#sourceset\n     * @type {EventTarget~Event}\n     * @prop {string} src\n     *                The source url available when the `sourceset` was triggered.\n     *                It will be an empty string if we cannot know what the source is\n     *                but know that the source will change.\n     */\n\n    /**\n     * Retrigger the `sourceset` event that was triggered by the {@link Tech}.\n     *\n     * @fires Player#sourceset\n     * @listens Tech#sourceset\n     * @private\n     */\n    ;\n\n    _proto.handleTechSourceset_ = function handleTechSourceset_(event) {\n      var _this7 = this;\n\n      // only update the source cache when the source\n      // was not updated using the player api\n      if (!this.changingSrc_) {\n        var updateSourceCaches = function updateSourceCaches(src) {\n          return _this7.updateSourceCaches_(src);\n        };\n\n        var playerSrc = this.currentSource().src;\n        var eventSrc = event.src; // if we have a playerSrc that is not a blob, and a tech src that is a blob\n\n        if (playerSrc && !/^blob:/.test(playerSrc) && /^blob:/.test(eventSrc)) {\n          // if both the tech source and the player source were updated we assume\n          // something like @videojs/http-streaming did the sourceset and skip updating the source cache.\n          if (!this.lastSource_ || this.lastSource_.tech !== eventSrc && this.lastSource_.player !== playerSrc) {\n            updateSourceCaches = function updateSourceCaches() {};\n          }\n        } // update the source to the initial source right away\n        // in some cases this will be empty string\n\n\n        updateSourceCaches(eventSrc); // if the `sourceset` `src` was an empty string\n        // wait for a `loadstart` to update the cache to `currentSrc`.\n        // If a sourceset happens before a `loadstart`, we reset the state\n\n        if (!event.src) {\n          this.tech_.any(['sourceset', 'loadstart'], function (e) {\n            // if a sourceset happens before a `loadstart` there\n            // is nothing to do as this `handleTechSourceset_`\n            // will be called again and this will be handled there.\n            if (e.type === 'sourceset') {\n              return;\n            }\n\n            var techSrc = _this7.techGet('currentSrc');\n\n            _this7.lastSource_.tech = techSrc;\n\n            _this7.updateSourceCaches_(techSrc);\n          });\n        }\n      }\n\n      this.lastSource_ = {\n        player: this.currentSource().src,\n        tech: event.src\n      };\n      this.trigger({\n        src: event.src,\n        type: 'sourceset'\n      });\n    }\n    /**\n     * Add/remove the vjs-has-started class\n     *\n     * @fires Player#firstplay\n     *\n     * @param {boolean} request\n     *        - true: adds the class\n     *        - false: remove the class\n     *\n     * @return {boolean}\n     *         the boolean value of hasStarted_\n     */\n    ;\n\n    _proto.hasStarted = function hasStarted(request) {\n      if (request === undefined) {\n        // act as getter, if we have no request to change\n        return this.hasStarted_;\n      }\n\n      if (request === this.hasStarted_) {\n        return;\n      }\n\n      this.hasStarted_ = request;\n\n      if (this.hasStarted_) {\n        this.addClass('vjs-has-started');\n        this.trigger('firstplay');\n      } else {\n        this.removeClass('vjs-has-started');\n      }\n    }\n    /**\n     * Fired whenever the media begins or resumes playback\n     *\n     * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#dom-media-play}\n     * @fires Player#play\n     * @listens Tech#play\n     * @private\n     */\n    ;\n\n    _proto.handleTechPlay_ = function handleTechPlay_() {\n      this.removeClass('vjs-ended');\n      this.removeClass('vjs-paused');\n      this.addClass('vjs-playing'); // hide the poster when the user hits play\n\n      this.hasStarted(true);\n      /**\n       * Triggered whenever an {@link Tech#play} event happens. Indicates that\n       * playback has started or resumed.\n       *\n       * @event Player#play\n       * @type {EventTarget~Event}\n       */\n\n      this.trigger('play');\n    }\n    /**\n     * Retrigger the `ratechange` event that was triggered by the {@link Tech}.\n     *\n     * If there were any events queued while the playback rate was zero, fire\n     * those events now.\n     *\n     * @private\n     * @method Player#handleTechRateChange_\n     * @fires Player#ratechange\n     * @listens Tech#ratechange\n     */\n    ;\n\n    _proto.handleTechRateChange_ = function handleTechRateChange_() {\n      if (this.tech_.playbackRate() > 0 && this.cache_.lastPlaybackRate === 0) {\n        this.queuedCallbacks_.forEach(function (queued) {\n          return queued.callback(queued.event);\n        });\n        this.queuedCallbacks_ = [];\n      }\n\n      this.cache_.lastPlaybackRate = this.tech_.playbackRate();\n      /**\n       * Fires when the playing speed of the audio/video is changed\n       *\n       * @event Player#ratechange\n       * @type {event}\n       */\n\n      this.trigger('ratechange');\n    }\n    /**\n     * Retrigger the `waiting` event that was triggered by the {@link Tech}.\n     *\n     * @fires Player#waiting\n     * @listens Tech#waiting\n     * @private\n     */\n    ;\n\n    _proto.handleTechWaiting_ = function handleTechWaiting_() {\n      var _this8 = this;\n\n      this.addClass('vjs-waiting');\n      /**\n       * A readyState change on the DOM element has caused playback to stop.\n       *\n       * @event Player#waiting\n       * @type {EventTarget~Event}\n       */\n\n      this.trigger('waiting'); // Browsers may emit a timeupdate event after a waiting event. In order to prevent\n      // premature removal of the waiting class, wait for the time to change.\n\n      var timeWhenWaiting = this.currentTime();\n\n      var timeUpdateListener = function timeUpdateListener() {\n        if (timeWhenWaiting !== _this8.currentTime()) {\n          _this8.removeClass('vjs-waiting');\n\n          _this8.off('timeupdate', timeUpdateListener);\n        }\n      };\n\n      this.on('timeupdate', timeUpdateListener);\n    }\n    /**\n     * Retrigger the `canplay` event that was triggered by the {@link Tech}.\n     * > Note: This is not consistent between browsers. See #1351\n     *\n     * @fires Player#canplay\n     * @listens Tech#canplay\n     * @private\n     */\n    ;\n\n    _proto.handleTechCanPlay_ = function handleTechCanPlay_() {\n      this.removeClass('vjs-waiting');\n      /**\n       * The media has a readyState of HAVE_FUTURE_DATA or greater.\n       *\n       * @event Player#canplay\n       * @type {EventTarget~Event}\n       */\n\n      this.trigger('canplay');\n    }\n    /**\n     * Retrigger the `canplaythrough` event that was triggered by the {@link Tech}.\n     *\n     * @fires Player#canplaythrough\n     * @listens Tech#canplaythrough\n     * @private\n     */\n    ;\n\n    _proto.handleTechCanPlayThrough_ = function handleTechCanPlayThrough_() {\n      this.removeClass('vjs-waiting');\n      /**\n       * The media has a readyState of HAVE_ENOUGH_DATA or greater. This means that the\n       * entire media file can be played without buffering.\n       *\n       * @event Player#canplaythrough\n       * @type {EventTarget~Event}\n       */\n\n      this.trigger('canplaythrough');\n    }\n    /**\n     * Retrigger the `playing` event that was triggered by the {@link Tech}.\n     *\n     * @fires Player#playing\n     * @listens Tech#playing\n     * @private\n     */\n    ;\n\n    _proto.handleTechPlaying_ = function handleTechPlaying_() {\n      this.removeClass('vjs-waiting');\n      /**\n       * The media is no longer blocked from playback, and has started playing.\n       *\n       * @event Player#playing\n       * @type {EventTarget~Event}\n       */\n\n      this.trigger('playing');\n    }\n    /**\n     * Retrigger the `seeking` event that was triggered by the {@link Tech}.\n     *\n     * @fires Player#seeking\n     * @listens Tech#seeking\n     * @private\n     */\n    ;\n\n    _proto.handleTechSeeking_ = function handleTechSeeking_() {\n      this.addClass('vjs-seeking');\n      /**\n       * Fired whenever the player is jumping to a new time\n       *\n       * @event Player#seeking\n       * @type {EventTarget~Event}\n       */\n\n      this.trigger('seeking');\n    }\n    /**\n     * Retrigger the `seeked` event that was triggered by the {@link Tech}.\n     *\n     * @fires Player#seeked\n     * @listens Tech#seeked\n     * @private\n     */\n    ;\n\n    _proto.handleTechSeeked_ = function handleTechSeeked_() {\n      this.removeClass('vjs-seeking');\n      this.removeClass('vjs-ended');\n      /**\n       * Fired when the player has finished jumping to a new time\n       *\n       * @event Player#seeked\n       * @type {EventTarget~Event}\n       */\n\n      this.trigger('seeked');\n    }\n    /**\n     * Retrigger the `firstplay` event that was triggered by the {@link Tech}.\n     *\n     * @fires Player#firstplay\n     * @listens Tech#firstplay\n     * @deprecated As of 6.0 firstplay event is deprecated.\n     *             As of 6.0 passing the `starttime` option to the player and the firstplay event are deprecated.\n     * @private\n     */\n    ;\n\n    _proto.handleTechFirstPlay_ = function handleTechFirstPlay_() {\n      // If the first starttime attribute is specified\n      // then we will start at the given offset in seconds\n      if (this.options_.starttime) {\n        log$1.warn('Passing the `starttime` option to the player will be deprecated in 6.0');\n        this.currentTime(this.options_.starttime);\n      }\n\n      this.addClass('vjs-has-started');\n      /**\n       * Fired the first time a video is played. Not part of the HLS spec, and this is\n       * probably not the best implementation yet, so use sparingly. If you don't have a\n       * reason to prevent playback, use `myPlayer.one('play');` instead.\n       *\n       * @event Player#firstplay\n       * @deprecated As of 6.0 firstplay event is deprecated.\n       * @type {EventTarget~Event}\n       */\n\n      this.trigger('firstplay');\n    }\n    /**\n     * Retrigger the `pause` event that was triggered by the {@link Tech}.\n     *\n     * @fires Player#pause\n     * @listens Tech#pause\n     * @private\n     */\n    ;\n\n    _proto.handleTechPause_ = function handleTechPause_() {\n      this.removeClass('vjs-playing');\n      this.addClass('vjs-paused');\n      /**\n       * Fired whenever the media has been paused\n       *\n       * @event Player#pause\n       * @type {EventTarget~Event}\n       */\n\n      this.trigger('pause');\n    }\n    /**\n     * Retrigger the `ended` event that was triggered by the {@link Tech}.\n     *\n     * @fires Player#ended\n     * @listens Tech#ended\n     * @private\n     */\n    ;\n\n    _proto.handleTechEnded_ = function handleTechEnded_() {\n      this.addClass('vjs-ended');\n      this.removeClass('vjs-waiting');\n\n      if (this.options_.loop) {\n        this.currentTime(0);\n        this.play();\n      } else if (!this.paused()) {\n        this.pause();\n      }\n      /**\n       * Fired when the end of the media resource is reached (currentTime == duration)\n       *\n       * @event Player#ended\n       * @type {EventTarget~Event}\n       */\n\n\n      this.trigger('ended');\n    }\n    /**\n     * Fired when the duration of the media resource is first known or changed\n     *\n     * @listens Tech#durationchange\n     * @private\n     */\n    ;\n\n    _proto.handleTechDurationChange_ = function handleTechDurationChange_() {\n      this.duration(this.techGet_('duration'));\n    }\n    /**\n     * Handle a click on the media element to play/pause\n     *\n     * @param {EventTarget~Event} event\n     *        the event that caused this function to trigger\n     *\n     * @listens Tech#click\n     * @private\n     */\n    ;\n\n    _proto.handleTechClick_ = function handleTechClick_(event) {\n      // When controls are disabled a click should not toggle playback because\n      // the click is considered a control\n      if (!this.controls_) {\n        return;\n      }\n\n      if (this.options_ === undefined || this.options_.userActions === undefined || this.options_.userActions.click === undefined || this.options_.userActions.click !== false) {\n        if (this.options_ !== undefined && this.options_.userActions !== undefined && typeof this.options_.userActions.click === 'function') {\n          this.options_.userActions.click.call(this, event);\n        } else if (this.paused()) {\n          silencePromise(this.play());\n        } else {\n          this.pause();\n        }\n      }\n    }\n    /**\n     * Handle a double-click on the media element to enter/exit fullscreen\n     *\n     * @param {EventTarget~Event} event\n     *        the event that caused this function to trigger\n     *\n     * @listens Tech#dblclick\n     * @private\n     */\n    ;\n\n    _proto.handleTechDoubleClick_ = function handleTechDoubleClick_(event) {\n      if (!this.controls_) {\n        return;\n      } // we do not want to toggle fullscreen state\n      // when double-clicking inside a control bar or a modal\n\n\n      var inAllowedEls = Array.prototype.some.call(this.$$('.vjs-control-bar, .vjs-modal-dialog'), function (el) {\n        return el.contains(event.target);\n      });\n\n      if (!inAllowedEls) {\n        /*\n         * options.userActions.doubleClick\n         *\n         * If `undefined` or `true`, double-click toggles fullscreen if controls are present\n         * Set to `false` to disable double-click handling\n         * Set to a function to substitute an external double-click handler\n         */\n        if (this.options_ === undefined || this.options_.userActions === undefined || this.options_.userActions.doubleClick === undefined || this.options_.userActions.doubleClick !== false) {\n          if (this.options_ !== undefined && this.options_.userActions !== undefined && typeof this.options_.userActions.doubleClick === 'function') {\n            this.options_.userActions.doubleClick.call(this, event);\n          } else if (this.isFullscreen()) {\n            this.exitFullscreen();\n          } else {\n            this.requestFullscreen();\n          }\n        }\n      }\n    }\n    /**\n     * Handle a tap on the media element. It will toggle the user\n     * activity state, which hides and shows the controls.\n     *\n     * @listens Tech#tap\n     * @private\n     */\n    ;\n\n    _proto.handleTechTap_ = function handleTechTap_() {\n      this.userActive(!this.userActive());\n    }\n    /**\n     * Handle touch to start\n     *\n     * @listens Tech#touchstart\n     * @private\n     */\n    ;\n\n    _proto.handleTechTouchStart_ = function handleTechTouchStart_() {\n      this.userWasActive = this.userActive();\n    }\n    /**\n     * Handle touch to move\n     *\n     * @listens Tech#touchmove\n     * @private\n     */\n    ;\n\n    _proto.handleTechTouchMove_ = function handleTechTouchMove_() {\n      if (this.userWasActive) {\n        this.reportUserActivity();\n      }\n    }\n    /**\n     * Handle touch to end\n     *\n     * @param {EventTarget~Event} event\n     *        the touchend event that triggered\n     *        this function\n     *\n     * @listens Tech#touchend\n     * @private\n     */\n    ;\n\n    _proto.handleTechTouchEnd_ = function handleTechTouchEnd_(event) {\n      // Stop the mouse events from also happening\n      if (event.cancelable) {\n        event.preventDefault();\n      }\n    }\n    /**\n     * native click events on the SWF aren't triggered on IE11, Win8.1RT\n     * use stageclick events triggered from inside the SWF instead\n     *\n     * @private\n     * @listens stageclick\n     */\n    ;\n\n    _proto.handleStageClick_ = function handleStageClick_() {\n      this.reportUserActivity();\n    }\n    /**\n     * @private\n     */\n    ;\n\n    _proto.toggleFullscreenClass_ = function toggleFullscreenClass_() {\n      if (this.isFullscreen()) {\n        this.addClass('vjs-fullscreen');\n      } else {\n        this.removeClass('vjs-fullscreen');\n      }\n    }\n    /**\n     * when the document fschange event triggers it calls this\n     */\n    ;\n\n    _proto.documentFullscreenChange_ = function documentFullscreenChange_(e) {\n      var targetPlayer = e.target.player; // if another player was fullscreen\n      // do a null check for targetPlayer because older firefox's would put document as e.target\n\n      if (targetPlayer && targetPlayer !== this) {\n        return;\n      }\n\n      var el = this.el();\n      var isFs = document[this.fsApi_.fullscreenElement] === el;\n\n      if (!isFs && el.matches) {\n        isFs = el.matches(':' + this.fsApi_.fullscreen);\n      } else if (!isFs && el.msMatchesSelector) {\n        isFs = el.msMatchesSelector(':' + this.fsApi_.fullscreen);\n      }\n\n      this.isFullscreen(isFs);\n    }\n    /**\n     * Handle Tech Fullscreen Change\n     *\n     * @param {EventTarget~Event} event\n     *        the fullscreenchange event that triggered this function\n     *\n     * @param {Object} data\n     *        the data that was sent with the event\n     *\n     * @private\n     * @listens Tech#fullscreenchange\n     * @fires Player#fullscreenchange\n     */\n    ;\n\n    _proto.handleTechFullscreenChange_ = function handleTechFullscreenChange_(event, data) {\n      var _this9 = this;\n\n      if (data) {\n        if (data.nativeIOSFullscreen) {\n          this.addClass('vjs-ios-native-fs');\n          this.tech_.one('webkitendfullscreen', function () {\n            _this9.removeClass('vjs-ios-native-fs');\n          });\n        }\n\n        this.isFullscreen(data.isFullscreen);\n      }\n    };\n\n    _proto.handleTechFullscreenError_ = function handleTechFullscreenError_(event, err) {\n      this.trigger('fullscreenerror', err);\n    }\n    /**\n     * @private\n     */\n    ;\n\n    _proto.togglePictureInPictureClass_ = function togglePictureInPictureClass_() {\n      if (this.isInPictureInPicture()) {\n        this.addClass('vjs-picture-in-picture');\n      } else {\n        this.removeClass('vjs-picture-in-picture');\n      }\n    }\n    /**\n     * Handle Tech Enter Picture-in-Picture.\n     *\n     * @param {EventTarget~Event} event\n     *        the enterpictureinpicture event that triggered this function\n     *\n     * @private\n     * @listens Tech#enterpictureinpicture\n     */\n    ;\n\n    _proto.handleTechEnterPictureInPicture_ = function handleTechEnterPictureInPicture_(event) {\n      this.isInPictureInPicture(true);\n    }\n    /**\n     * Handle Tech Leave Picture-in-Picture.\n     *\n     * @param {EventTarget~Event} event\n     *        the leavepictureinpicture event that triggered this function\n     *\n     * @private\n     * @listens Tech#leavepictureinpicture\n     */\n    ;\n\n    _proto.handleTechLeavePictureInPicture_ = function handleTechLeavePictureInPicture_(event) {\n      this.isInPictureInPicture(false);\n    }\n    /**\n     * Fires when an error occurred during the loading of an audio/video.\n     *\n     * @private\n     * @listens Tech#error\n     */\n    ;\n\n    _proto.handleTechError_ = function handleTechError_() {\n      var error = this.tech_.error();\n      this.error(error);\n    }\n    /**\n     * Retrigger the `textdata` event that was triggered by the {@link Tech}.\n     *\n     * @fires Player#textdata\n     * @listens Tech#textdata\n     * @private\n     */\n    ;\n\n    _proto.handleTechTextData_ = function handleTechTextData_() {\n      var data = null;\n\n      if (arguments.length > 1) {\n        data = arguments[1];\n      }\n      /**\n       * Fires when we get a textdata event from tech\n       *\n       * @event Player#textdata\n       * @type {EventTarget~Event}\n       */\n\n\n      this.trigger('textdata', data);\n    }\n    /**\n     * Get object for cached values.\n     *\n     * @return {Object}\n     *         get the current object cache\n     */\n    ;\n\n    _proto.getCache = function getCache() {\n      return this.cache_;\n    }\n    /**\n     * Resets the internal cache object.\n     *\n     * Using this function outside the player constructor or reset method may\n     * have unintended side-effects.\n     *\n     * @private\n     */\n    ;\n\n    _proto.resetCache_ = function resetCache_() {\n      this.cache_ = {\n        // Right now, the currentTime is not _really_ cached because it is always\n        // retrieved from the tech (see: currentTime). However, for completeness,\n        // we set it to zero here to ensure that if we do start actually caching\n        // it, we reset it along with everything else.\n        currentTime: 0,\n        initTime: 0,\n        inactivityTimeout: this.options_.inactivityTimeout,\n        duration: NaN,\n        lastVolume: 1,\n        lastPlaybackRate: this.defaultPlaybackRate(),\n        media: null,\n        src: '',\n        source: {},\n        sources: [],\n        playbackRates: [],\n        volume: 1\n      };\n    }\n    /**\n     * Pass values to the playback tech\n     *\n     * @param {string} [method]\n     *        the method to call\n     *\n     * @param {Object} arg\n     *        the argument to pass\n     *\n     * @private\n     */\n    ;\n\n    _proto.techCall_ = function techCall_(method, arg) {\n      // If it's not ready yet, call method when it is\n      this.ready(function () {\n        if (method in allowedSetters) {\n          return set(this.middleware_, this.tech_, method, arg);\n        } else if (method in allowedMediators) {\n          return mediate(this.middleware_, this.tech_, method, arg);\n        }\n\n        try {\n          if (this.tech_) {\n            this.tech_[method](arg);\n          }\n        } catch (e) {\n          log$1(e);\n          throw e;\n        }\n      }, true);\n    }\n    /**\n     * Get calls can't wait for the tech, and sometimes don't need to.\n     *\n     * @param {string} method\n     *        Tech method\n     *\n     * @return {Function|undefined}\n     *         the method or undefined\n     *\n     * @private\n     */\n    ;\n\n    _proto.techGet_ = function techGet_(method) {\n      if (!this.tech_ || !this.tech_.isReady_) {\n        return;\n      }\n\n      if (method in allowedGetters) {\n        return get(this.middleware_, this.tech_, method);\n      } else if (method in allowedMediators) {\n        return mediate(this.middleware_, this.tech_, method);\n      } // Flash likes to die and reload when you hide or reposition it.\n      // In these cases the object methods go away and we get errors.\n      // TODO: Is this needed for techs other than Flash?\n      // When that happens we'll catch the errors and inform tech that it's not ready any more.\n\n\n      try {\n        return this.tech_[method]();\n      } catch (e) {\n        // When building additional tech libs, an expected method may not be defined yet\n        if (this.tech_[method] === undefined) {\n          log$1(\"Video.js: \" + method + \" method not defined for \" + this.techName_ + \" playback technology.\", e);\n          throw e;\n        } // When a method isn't available on the object it throws a TypeError\n\n\n        if (e.name === 'TypeError') {\n          log$1(\"Video.js: \" + method + \" unavailable on \" + this.techName_ + \" playback technology element.\", e);\n          this.tech_.isReady_ = false;\n          throw e;\n        } // If error unknown, just log and throw\n\n\n        log$1(e);\n        throw e;\n      }\n    }\n    /**\n     * Attempt to begin playback at the first opportunity.\n     *\n     * @return {Promise|undefined}\n     *         Returns a promise if the browser supports Promises (or one\n     *         was passed in as an option). This promise will be resolved on\n     *         the return value of play. If this is undefined it will fulfill the\n     *         promise chain otherwise the promise chain will be fulfilled when\n     *         the promise from play is fulfilled.\n     */\n    ;\n\n    _proto.play = function play() {\n      var _this10 = this;\n\n      var PromiseClass = this.options_.Promise || window.Promise;\n\n      if (PromiseClass) {\n        return new PromiseClass(function (resolve) {\n          _this10.play_(resolve);\n        });\n      }\n\n      return this.play_();\n    }\n    /**\n     * The actual logic for play, takes a callback that will be resolved on the\n     * return value of play. This allows us to resolve to the play promise if there\n     * is one on modern browsers.\n     *\n     * @private\n     * @param {Function} [callback]\n     *        The callback that should be called when the techs play is actually called\n     */\n    ;\n\n    _proto.play_ = function play_(callback) {\n      var _this11 = this;\n\n      if (callback === void 0) {\n        callback = silencePromise;\n      }\n\n      this.playCallbacks_.push(callback);\n      var isSrcReady = Boolean(!this.changingSrc_ && (this.src() || this.currentSrc())); // treat calls to play_ somewhat like the `one` event function\n\n      if (this.waitToPlay_) {\n        this.off(['ready', 'loadstart'], this.waitToPlay_);\n        this.waitToPlay_ = null;\n      } // if the player/tech is not ready or the src itself is not ready\n      // queue up a call to play on `ready` or `loadstart`\n\n\n      if (!this.isReady_ || !isSrcReady) {\n        this.waitToPlay_ = function (e) {\n          _this11.play_();\n        };\n\n        this.one(['ready', 'loadstart'], this.waitToPlay_); // if we are in Safari, there is a high chance that loadstart will trigger after the gesture timeperiod\n        // in that case, we need to prime the video element by calling load so it'll be ready in time\n\n        if (!isSrcReady && (IS_ANY_SAFARI || IS_IOS)) {\n          this.load();\n        }\n\n        return;\n      } // If the player/tech is ready and we have a source, we can attempt playback.\n\n\n      var val = this.techGet_('play'); // play was terminated if the returned value is null\n\n      if (val === null) {\n        this.runPlayTerminatedQueue_();\n      } else {\n        this.runPlayCallbacks_(val);\n      }\n    }\n    /**\n     * These functions will be run when if play is terminated. If play\n     * runPlayCallbacks_ is run these function will not be run. This allows us\n     * to differenciate between a terminated play and an actual call to play.\n     */\n    ;\n\n    _proto.runPlayTerminatedQueue_ = function runPlayTerminatedQueue_() {\n      var queue = this.playTerminatedQueue_.slice(0);\n      this.playTerminatedQueue_ = [];\n      queue.forEach(function (q) {\n        q();\n      });\n    }\n    /**\n     * When a callback to play is delayed we have to run these\n     * callbacks when play is actually called on the tech. This function\n     * runs the callbacks that were delayed and accepts the return value\n     * from the tech.\n     *\n     * @param {undefined|Promise} val\n     *        The return value from the tech.\n     */\n    ;\n\n    _proto.runPlayCallbacks_ = function runPlayCallbacks_(val) {\n      var callbacks = this.playCallbacks_.slice(0);\n      this.playCallbacks_ = []; // clear play terminatedQueue since we finished a real play\n\n      this.playTerminatedQueue_ = [];\n      callbacks.forEach(function (cb) {\n        cb(val);\n      });\n    }\n    /**\n     * Pause the video playback\n     *\n     * @return {Player}\n     *         A reference to the player object this function was called on\n     */\n    ;\n\n    _proto.pause = function pause() {\n      this.techCall_('pause');\n    }\n    /**\n     * Check if the player is paused or has yet to play\n     *\n     * @return {boolean}\n     *         - false: if the media is currently playing\n     *         - true: if media is not currently playing\n     */\n    ;\n\n    _proto.paused = function paused() {\n      // The initial state of paused should be true (in Safari it's actually false)\n      return this.techGet_('paused') === false ? false : true;\n    }\n    /**\n     * Get a TimeRange object representing the current ranges of time that the user\n     * has played.\n     *\n     * @return {TimeRange}\n     *         A time range object that represents all the increments of time that have\n     *         been played.\n     */\n    ;\n\n    _proto.played = function played() {\n      return this.techGet_('played') || createTimeRanges(0, 0);\n    }\n    /**\n     * Returns whether or not the user is \"scrubbing\". Scrubbing is\n     * when the user has clicked the progress bar handle and is\n     * dragging it along the progress bar.\n     *\n     * @param {boolean} [isScrubbing]\n     *        whether the user is or is not scrubbing\n     *\n     * @return {boolean}\n     *         The value of scrubbing when getting\n     */\n    ;\n\n    _proto.scrubbing = function scrubbing(isScrubbing) {\n      if (typeof isScrubbing === 'undefined') {\n        return this.scrubbing_;\n      }\n\n      this.scrubbing_ = !!isScrubbing;\n      this.techCall_('setScrubbing', this.scrubbing_);\n\n      if (isScrubbing) {\n        this.addClass('vjs-scrubbing');\n      } else {\n        this.removeClass('vjs-scrubbing');\n      }\n    }\n    /**\n     * Get or set the current time (in seconds)\n     *\n     * @param {number|string} [seconds]\n     *        The time to seek to in seconds\n     *\n     * @return {number}\n     *         - the current time in seconds when getting\n     */\n    ;\n\n    _proto.currentTime = function currentTime(seconds) {\n      if (typeof seconds !== 'undefined') {\n        if (seconds < 0) {\n          seconds = 0;\n        }\n\n        if (!this.isReady_ || this.changingSrc_ || !this.tech_ || !this.tech_.isReady_) {\n          this.cache_.initTime = seconds;\n          this.off('canplay', this.boundApplyInitTime_);\n          this.one('canplay', this.boundApplyInitTime_);\n          return;\n        }\n\n        this.techCall_('setCurrentTime', seconds);\n        this.cache_.initTime = 0;\n        return;\n      } // cache last currentTime and return. default to 0 seconds\n      //\n      // Caching the currentTime is meant to prevent a massive amount of reads on the tech's\n      // currentTime when scrubbing, but may not provide much performance benefit afterall.\n      // Should be tested. Also something has to read the actual current time or the cache will\n      // never get updated.\n\n\n      this.cache_.currentTime = this.techGet_('currentTime') || 0;\n      return this.cache_.currentTime;\n    }\n    /**\n     * Apply the value of initTime stored in cache as currentTime.\n     *\n     * @private\n     */\n    ;\n\n    _proto.applyInitTime_ = function applyInitTime_() {\n      this.currentTime(this.cache_.initTime);\n    }\n    /**\n     * Normally gets the length in time of the video in seconds;\n     * in all but the rarest use cases an argument will NOT be passed to the method\n     *\n     * > **NOTE**: The video must have started loading before the duration can be\n     * known, and depending on preload behaviour may not be known until the video starts\n     * playing.\n     *\n     * @fires Player#durationchange\n     *\n     * @param {number} [seconds]\n     *        The duration of the video to set in seconds\n     *\n     * @return {number}\n     *         - The duration of the video in seconds when getting\n     */\n    ;\n\n    _proto.duration = function duration(seconds) {\n      if (seconds === undefined) {\n        // return NaN if the duration is not known\n        return this.cache_.duration !== undefined ? this.cache_.duration : NaN;\n      }\n\n      seconds = parseFloat(seconds); // Standardize on Infinity for signaling video is live\n\n      if (seconds < 0) {\n        seconds = Infinity;\n      }\n\n      if (seconds !== this.cache_.duration) {\n        // Cache the last set value for optimized scrubbing (esp. Flash)\n        // TODO: Required for techs other than Flash?\n        this.cache_.duration = seconds;\n\n        if (seconds === Infinity) {\n          this.addClass('vjs-live');\n        } else {\n          this.removeClass('vjs-live');\n        }\n\n        if (!isNaN(seconds)) {\n          // Do not fire durationchange unless the duration value is known.\n          // @see [Spec]{@link https://www.w3.org/TR/2011/WD-html5-20110113/video.html#media-element-load-algorithm}\n\n          /**\n           * @event Player#durationchange\n           * @type {EventTarget~Event}\n           */\n          this.trigger('durationchange');\n        }\n      }\n    }\n    /**\n     * Calculates how much time is left in the video. Not part\n     * of the native video API.\n     *\n     * @return {number}\n     *         The time remaining in seconds\n     */\n    ;\n\n    _proto.remainingTime = function remainingTime() {\n      return this.duration() - this.currentTime();\n    }\n    /**\n     * A remaining time function that is intented to be used when\n     * the time is to be displayed directly to the user.\n     *\n     * @return {number}\n     *         The rounded time remaining in seconds\n     */\n    ;\n\n    _proto.remainingTimeDisplay = function remainingTimeDisplay() {\n      return Math.floor(this.duration()) - Math.floor(this.currentTime());\n    } //\n    // Kind of like an array of portions of the video that have been downloaded.\n\n    /**\n     * Get a TimeRange object with an array of the times of the video\n     * that have been downloaded. If you just want the percent of the\n     * video that's been downloaded, use bufferedPercent.\n     *\n     * @see [Buffered Spec]{@link http://dev.w3.org/html5/spec/video.html#dom-media-buffered}\n     *\n     * @return {TimeRange}\n     *         A mock TimeRange object (following HTML spec)\n     */\n    ;\n\n    _proto.buffered = function buffered() {\n      var buffered = this.techGet_('buffered');\n\n      if (!buffered || !buffered.length) {\n        buffered = createTimeRanges(0, 0);\n      }\n\n      return buffered;\n    }\n    /**\n     * Get the percent (as a decimal) of the video that's been downloaded.\n     * This method is not a part of the native HTML video API.\n     *\n     * @return {number}\n     *         A decimal between 0 and 1 representing the percent\n     *         that is buffered 0 being 0% and 1 being 100%\n     */\n    ;\n\n    _proto.bufferedPercent = function bufferedPercent$1() {\n      return bufferedPercent(this.buffered(), this.duration());\n    }\n    /**\n     * Get the ending time of the last buffered time range\n     * This is used in the progress bar to encapsulate all time ranges.\n     *\n     * @return {number}\n     *         The end of the last buffered time range\n     */\n    ;\n\n    _proto.bufferedEnd = function bufferedEnd() {\n      var buffered = this.buffered();\n      var duration = this.duration();\n      var end = buffered.end(buffered.length - 1);\n\n      if (end > duration) {\n        end = duration;\n      }\n\n      return end;\n    }\n    /**\n     * Get or set the current volume of the media\n     *\n     * @param  {number} [percentAsDecimal]\n     *         The new volume as a decimal percent:\n     *         - 0 is muted/0%/off\n     *         - 1.0 is 100%/full\n     *         - 0.5 is half volume or 50%\n     *\n     * @return {number}\n     *         The current volume as a percent when getting\n     */\n    ;\n\n    _proto.volume = function volume(percentAsDecimal) {\n      var vol;\n\n      if (percentAsDecimal !== undefined) {\n        // Force value to between 0 and 1\n        vol = Math.max(0, Math.min(1, parseFloat(percentAsDecimal)));\n        this.cache_.volume = vol;\n        this.techCall_('setVolume', vol);\n\n        if (vol > 0) {\n          this.lastVolume_(vol);\n        }\n\n        return;\n      } // Default to 1 when returning current volume.\n\n\n      vol = parseFloat(this.techGet_('volume'));\n      return isNaN(vol) ? 1 : vol;\n    }\n    /**\n     * Get the current muted state, or turn mute on or off\n     *\n     * @param {boolean} [muted]\n     *        - true to mute\n     *        - false to unmute\n     *\n     * @return {boolean}\n     *         - true if mute is on and getting\n     *         - false if mute is off and getting\n     */\n    ;\n\n    _proto.muted = function muted(_muted) {\n      if (_muted !== undefined) {\n        this.techCall_('setMuted', _muted);\n        return;\n      }\n\n      return this.techGet_('muted') || false;\n    }\n    /**\n     * Get the current defaultMuted state, or turn defaultMuted on or off. defaultMuted\n     * indicates the state of muted on initial playback.\n     *\n     * ```js\n     *   var myPlayer = videojs('some-player-id');\n     *\n     *   myPlayer.src(\"http://www.example.com/path/to/video.mp4\");\n     *\n     *   // get, should be false\n     *   console.log(myPlayer.defaultMuted());\n     *   // set to true\n     *   myPlayer.defaultMuted(true);\n     *   // get should be true\n     *   console.log(myPlayer.defaultMuted());\n     * ```\n     *\n     * @param {boolean} [defaultMuted]\n     *        - true to mute\n     *        - false to unmute\n     *\n     * @return {boolean|Player}\n     *         - true if defaultMuted is on and getting\n     *         - false if defaultMuted is off and getting\n     *         - A reference to the current player when setting\n     */\n    ;\n\n    _proto.defaultMuted = function defaultMuted(_defaultMuted) {\n      if (_defaultMuted !== undefined) {\n        return this.techCall_('setDefaultMuted', _defaultMuted);\n      }\n\n      return this.techGet_('defaultMuted') || false;\n    }\n    /**\n     * Get the last volume, or set it\n     *\n     * @param  {number} [percentAsDecimal]\n     *         The new last volume as a decimal percent:\n     *         - 0 is muted/0%/off\n     *         - 1.0 is 100%/full\n     *         - 0.5 is half volume or 50%\n     *\n     * @return {number}\n     *         the current value of lastVolume as a percent when getting\n     *\n     * @private\n     */\n    ;\n\n    _proto.lastVolume_ = function lastVolume_(percentAsDecimal) {\n      if (percentAsDecimal !== undefined && percentAsDecimal !== 0) {\n        this.cache_.lastVolume = percentAsDecimal;\n        return;\n      }\n\n      return this.cache_.lastVolume;\n    }\n    /**\n     * Check if current tech can support native fullscreen\n     * (e.g. with built in controls like iOS)\n     *\n     * @return {boolean}\n     *         if native fullscreen is supported\n     */\n    ;\n\n    _proto.supportsFullScreen = function supportsFullScreen() {\n      return this.techGet_('supportsFullScreen') || false;\n    }\n    /**\n     * Check if the player is in fullscreen mode or tell the player that it\n     * is or is not in fullscreen mode.\n     *\n     * > NOTE: As of the latest HTML5 spec, isFullscreen is no longer an official\n     * property and instead document.fullscreenElement is used. But isFullscreen is\n     * still a valuable property for internal player workings.\n     *\n     * @param  {boolean} [isFS]\n     *         Set the players current fullscreen state\n     *\n     * @return {boolean}\n     *         - true if fullscreen is on and getting\n     *         - false if fullscreen is off and getting\n     */\n    ;\n\n    _proto.isFullscreen = function isFullscreen(isFS) {\n      if (isFS !== undefined) {\n        var oldValue = this.isFullscreen_;\n        this.isFullscreen_ = Boolean(isFS); // if we changed fullscreen state and we're in prefixed mode, trigger fullscreenchange\n        // this is the only place where we trigger fullscreenchange events for older browsers\n        // fullWindow mode is treated as a prefixed event and will get a fullscreenchange event as well\n\n        if (this.isFullscreen_ !== oldValue && this.fsApi_.prefixed) {\n          /**\n             * @event Player#fullscreenchange\n             * @type {EventTarget~Event}\n             */\n          this.trigger('fullscreenchange');\n        }\n\n        this.toggleFullscreenClass_();\n        return;\n      }\n\n      return this.isFullscreen_;\n    }\n    /**\n     * Increase the size of the video to full screen\n     * In some browsers, full screen is not supported natively, so it enters\n     * \"full window mode\", where the video fills the browser window.\n     * In browsers and devices that support native full screen, sometimes the\n     * browser's default controls will be shown, and not the Video.js custom skin.\n     * This includes most mobile devices (iOS, Android) and older versions of\n     * Safari.\n     *\n     * @param  {Object} [fullscreenOptions]\n     *         Override the player fullscreen options\n     *\n     * @fires Player#fullscreenchange\n     */\n    ;\n\n    _proto.requestFullscreen = function requestFullscreen(fullscreenOptions) {\n      var PromiseClass = this.options_.Promise || window.Promise;\n\n      if (PromiseClass) {\n        var self = this;\n        return new PromiseClass(function (resolve, reject) {\n          function offHandler() {\n            self.off('fullscreenerror', errorHandler);\n            self.off('fullscreenchange', changeHandler);\n          }\n\n          function changeHandler() {\n            offHandler();\n            resolve();\n          }\n\n          function errorHandler(e, err) {\n            offHandler();\n            reject(err);\n          }\n\n          self.one('fullscreenchange', changeHandler);\n          self.one('fullscreenerror', errorHandler);\n          var promise = self.requestFullscreenHelper_(fullscreenOptions);\n\n          if (promise) {\n            promise.then(offHandler, offHandler);\n            promise.then(resolve, reject);\n          }\n        });\n      }\n\n      return this.requestFullscreenHelper_();\n    };\n\n    _proto.requestFullscreenHelper_ = function requestFullscreenHelper_(fullscreenOptions) {\n      var _this12 = this;\n\n      var fsOptions; // Only pass fullscreen options to requestFullscreen in spec-compliant browsers.\n      // Use defaults or player configured option unless passed directly to this method.\n\n      if (!this.fsApi_.prefixed) {\n        fsOptions = this.options_.fullscreen && this.options_.fullscreen.options || {};\n\n        if (fullscreenOptions !== undefined) {\n          fsOptions = fullscreenOptions;\n        }\n      } // This method works as follows:\n      // 1. if a fullscreen api is available, use it\n      //   1. call requestFullscreen with potential options\n      //   2. if we got a promise from above, use it to update isFullscreen()\n      // 2. otherwise, if the tech supports fullscreen, call `enterFullScreen` on it.\n      //   This is particularly used for iPhone, older iPads, and non-safari browser on iOS.\n      // 3. otherwise, use \"fullWindow\" mode\n\n\n      if (this.fsApi_.requestFullscreen) {\n        var promise = this.el_[this.fsApi_.requestFullscreen](fsOptions);\n\n        if (promise) {\n          promise.then(function () {\n            return _this12.isFullscreen(true);\n          }, function () {\n            return _this12.isFullscreen(false);\n          });\n        }\n\n        return promise;\n      } else if (this.tech_.supportsFullScreen() && !this.options_.preferFullWindow === true) {\n        // we can't take the video.js controls fullscreen but we can go fullscreen\n        // with native controls\n        this.techCall_('enterFullScreen');\n      } else {\n        // fullscreen isn't supported so we'll just stretch the video element to\n        // fill the viewport\n        this.enterFullWindow();\n      }\n    }\n    /**\n     * Return the video to its normal size after having been in full screen mode\n     *\n     * @fires Player#fullscreenchange\n     */\n    ;\n\n    _proto.exitFullscreen = function exitFullscreen() {\n      var PromiseClass = this.options_.Promise || window.Promise;\n\n      if (PromiseClass) {\n        var self = this;\n        return new PromiseClass(function (resolve, reject) {\n          function offHandler() {\n            self.off('fullscreenerror', errorHandler);\n            self.off('fullscreenchange', changeHandler);\n          }\n\n          function changeHandler() {\n            offHandler();\n            resolve();\n          }\n\n          function errorHandler(e, err) {\n            offHandler();\n            reject(err);\n          }\n\n          self.one('fullscreenchange', changeHandler);\n          self.one('fullscreenerror', errorHandler);\n          var promise = self.exitFullscreenHelper_();\n\n          if (promise) {\n            promise.then(offHandler, offHandler); // map the promise to our resolve/reject methods\n\n            promise.then(resolve, reject);\n          }\n        });\n      }\n\n      return this.exitFullscreenHelper_();\n    };\n\n    _proto.exitFullscreenHelper_ = function exitFullscreenHelper_() {\n      var _this13 = this;\n\n      if (this.fsApi_.requestFullscreen) {\n        var promise = document[this.fsApi_.exitFullscreen]();\n\n        if (promise) {\n          // we're splitting the promise here, so, we want to catch the\n          // potential error so that this chain doesn't have unhandled errors\n          silencePromise(promise.then(function () {\n            return _this13.isFullscreen(false);\n          }));\n        }\n\n        return promise;\n      } else if (this.tech_.supportsFullScreen() && !this.options_.preferFullWindow === true) {\n        this.techCall_('exitFullScreen');\n      } else {\n        this.exitFullWindow();\n      }\n    }\n    /**\n     * When fullscreen isn't supported we can stretch the\n     * video container to as wide as the browser will let us.\n     *\n     * @fires Player#enterFullWindow\n     */\n    ;\n\n    _proto.enterFullWindow = function enterFullWindow() {\n      this.isFullscreen(true);\n      this.isFullWindow = true; // Storing original doc overflow value to return to when fullscreen is off\n\n      this.docOrigOverflow = document.documentElement.style.overflow; // Add listener for esc key to exit fullscreen\n\n      on(document, 'keydown', this.boundFullWindowOnEscKey_); // Hide any scroll bars\n\n      document.documentElement.style.overflow = 'hidden'; // Apply fullscreen styles\n\n      addClass(document.body, 'vjs-full-window');\n      /**\n       * @event Player#enterFullWindow\n       * @type {EventTarget~Event}\n       */\n\n      this.trigger('enterFullWindow');\n    }\n    /**\n     * Check for call to either exit full window or\n     * full screen on ESC key\n     *\n     * @param {string} event\n     *        Event to check for key press\n     */\n    ;\n\n    _proto.fullWindowOnEscKey = function fullWindowOnEscKey(event) {\n      if (keycode.isEventKey(event, 'Esc')) {\n        if (this.isFullscreen() === true) {\n          if (!this.isFullWindow) {\n            this.exitFullscreen();\n          } else {\n            this.exitFullWindow();\n          }\n        }\n      }\n    }\n    /**\n     * Exit full window\n     *\n     * @fires Player#exitFullWindow\n     */\n    ;\n\n    _proto.exitFullWindow = function exitFullWindow() {\n      this.isFullscreen(false);\n      this.isFullWindow = false;\n      off(document, 'keydown', this.boundFullWindowOnEscKey_); // Unhide scroll bars.\n\n      document.documentElement.style.overflow = this.docOrigOverflow; // Remove fullscreen styles\n\n      removeClass(document.body, 'vjs-full-window'); // Resize the box, controller, and poster to original sizes\n      // this.positionAll();\n\n      /**\n       * @event Player#exitFullWindow\n       * @type {EventTarget~Event}\n       */\n\n      this.trigger('exitFullWindow');\n    }\n    /**\n     * Disable Picture-in-Picture mode.\n     *\n     * @param {boolean} value\n     *                  - true will disable Picture-in-Picture mode\n     *                  - false will enable Picture-in-Picture mode\n     */\n    ;\n\n    _proto.disablePictureInPicture = function disablePictureInPicture(value) {\n      if (value === undefined) {\n        return this.techGet_('disablePictureInPicture');\n      }\n\n      this.techCall_('setDisablePictureInPicture', value);\n      this.options_.disablePictureInPicture = value;\n      this.trigger('disablepictureinpicturechanged');\n    }\n    /**\n     * Check if the player is in Picture-in-Picture mode or tell the player that it\n     * is or is not in Picture-in-Picture mode.\n     *\n     * @param  {boolean} [isPiP]\n     *         Set the players current Picture-in-Picture state\n     *\n     * @return {boolean}\n     *         - true if Picture-in-Picture is on and getting\n     *         - false if Picture-in-Picture is off and getting\n     */\n    ;\n\n    _proto.isInPictureInPicture = function isInPictureInPicture(isPiP) {\n      if (isPiP !== undefined) {\n        this.isInPictureInPicture_ = !!isPiP;\n        this.togglePictureInPictureClass_();\n        return;\n      }\n\n      return !!this.isInPictureInPicture_;\n    }\n    /**\n     * Create a floating video window always on top of other windows so that users may\n     * continue consuming media while they interact with other content sites, or\n     * applications on their device.\n     *\n     * @see [Spec]{@link https://wicg.github.io/picture-in-picture}\n     *\n     * @fires Player#enterpictureinpicture\n     *\n     * @return {Promise}\n     *         A promise with a Picture-in-Picture window.\n     */\n    ;\n\n    _proto.requestPictureInPicture = function requestPictureInPicture() {\n      if ('pictureInPictureEnabled' in document && this.disablePictureInPicture() === false) {\n        /**\n         * This event fires when the player enters picture in picture mode\n         *\n         * @event Player#enterpictureinpicture\n         * @type {EventTarget~Event}\n         */\n        return this.techGet_('requestPictureInPicture');\n      }\n    }\n    /**\n     * Exit Picture-in-Picture mode.\n     *\n     * @see [Spec]{@link https://wicg.github.io/picture-in-picture}\n     *\n     * @fires Player#leavepictureinpicture\n     *\n     * @return {Promise}\n     *         A promise.\n     */\n    ;\n\n    _proto.exitPictureInPicture = function exitPictureInPicture() {\n      if ('pictureInPictureEnabled' in document) {\n        /**\n         * This event fires when the player leaves picture in picture mode\n         *\n         * @event Player#leavepictureinpicture\n         * @type {EventTarget~Event}\n         */\n        return document.exitPictureInPicture();\n      }\n    }\n    /**\n     * Called when this Player has focus and a key gets pressed down, or when\n     * any Component of this player receives a key press that it doesn't handle.\n     * This allows player-wide hotkeys (either as defined below, or optionally\n     * by an external function).\n     *\n     * @param {EventTarget~Event} event\n     *        The `keydown` event that caused this function to be called.\n     *\n     * @listens keydown\n     */\n    ;\n\n    _proto.handleKeyDown = function handleKeyDown(event) {\n      var userActions = this.options_.userActions; // Bail out if hotkeys are not configured.\n\n      if (!userActions || !userActions.hotkeys) {\n        return;\n      } // Function that determines whether or not to exclude an element from\n      // hotkeys handling.\n\n\n      var excludeElement = function excludeElement(el) {\n        var tagName = el.tagName.toLowerCase(); // The first and easiest test is for `contenteditable` elements.\n\n        if (el.isContentEditable) {\n          return true;\n        } // Inputs matching these types will still trigger hotkey handling as\n        // they are not text inputs.\n\n\n        var allowedInputTypes = ['button', 'checkbox', 'hidden', 'radio', 'reset', 'submit'];\n\n        if (tagName === 'input') {\n          return allowedInputTypes.indexOf(el.type) === -1;\n        } // The final test is by tag name. These tags will be excluded entirely.\n\n\n        var excludedTags = ['textarea'];\n        return excludedTags.indexOf(tagName) !== -1;\n      }; // Bail out if the user is focused on an interactive form element.\n\n\n      if (excludeElement(this.el_.ownerDocument.activeElement)) {\n        return;\n      }\n\n      if (typeof userActions.hotkeys === 'function') {\n        userActions.hotkeys.call(this, event);\n      } else {\n        this.handleHotkeys(event);\n      }\n    }\n    /**\n     * Called when this Player receives a hotkey keydown event.\n     * Supported player-wide hotkeys are:\n     *\n     *   f          - toggle fullscreen\n     *   m          - toggle mute\n     *   k or Space - toggle play/pause\n     *\n     * @param {EventTarget~Event} event\n     *        The `keydown` event that caused this function to be called.\n     */\n    ;\n\n    _proto.handleHotkeys = function handleHotkeys(event) {\n      var hotkeys = this.options_.userActions ? this.options_.userActions.hotkeys : {}; // set fullscreenKey, muteKey, playPauseKey from `hotkeys`, use defaults if not set\n\n      var _hotkeys$fullscreenKe = hotkeys.fullscreenKey,\n          fullscreenKey = _hotkeys$fullscreenKe === void 0 ? function (keydownEvent) {\n        return keycode.isEventKey(keydownEvent, 'f');\n      } : _hotkeys$fullscreenKe,\n          _hotkeys$muteKey = hotkeys.muteKey,\n          muteKey = _hotkeys$muteKey === void 0 ? function (keydownEvent) {\n        return keycode.isEventKey(keydownEvent, 'm');\n      } : _hotkeys$muteKey,\n          _hotkeys$playPauseKey = hotkeys.playPauseKey,\n          playPauseKey = _hotkeys$playPauseKey === void 0 ? function (keydownEvent) {\n        return keycode.isEventKey(keydownEvent, 'k') || keycode.isEventKey(keydownEvent, 'Space');\n      } : _hotkeys$playPauseKey;\n\n      if (fullscreenKey.call(this, event)) {\n        event.preventDefault();\n        event.stopPropagation();\n        var FSToggle = Component$1.getComponent('FullscreenToggle');\n\n        if (document[this.fsApi_.fullscreenEnabled] !== false) {\n          FSToggle.prototype.handleClick.call(this, event);\n        }\n      } else if (muteKey.call(this, event)) {\n        event.preventDefault();\n        event.stopPropagation();\n        var MuteToggle = Component$1.getComponent('MuteToggle');\n        MuteToggle.prototype.handleClick.call(this, event);\n      } else if (playPauseKey.call(this, event)) {\n        event.preventDefault();\n        event.stopPropagation();\n        var PlayToggle = Component$1.getComponent('PlayToggle');\n        PlayToggle.prototype.handleClick.call(this, event);\n      }\n    }\n    /**\n     * Check whether the player can play a given mimetype\n     *\n     * @see https://www.w3.org/TR/2011/WD-html5-20110113/video.html#dom-navigator-canplaytype\n     *\n     * @param {string} type\n     *        The mimetype to check\n     *\n     * @return {string}\n     *         'probably', 'maybe', or '' (empty string)\n     */\n    ;\n\n    _proto.canPlayType = function canPlayType(type) {\n      var can; // Loop through each playback technology in the options order\n\n      for (var i = 0, j = this.options_.techOrder; i < j.length; i++) {\n        var techName = j[i];\n        var tech = Tech.getTech(techName); // Support old behavior of techs being registered as components.\n        // Remove once that deprecated behavior is removed.\n\n        if (!tech) {\n          tech = Component$1.getComponent(techName);\n        } // Check if the current tech is defined before continuing\n\n\n        if (!tech) {\n          log$1.error(\"The \\\"\" + techName + \"\\\" tech is undefined. Skipped browser support check for that tech.\");\n          continue;\n        } // Check if the browser supports this technology\n\n\n        if (tech.isSupported()) {\n          can = tech.canPlayType(type);\n\n          if (can) {\n            return can;\n          }\n        }\n      }\n\n      return '';\n    }\n    /**\n     * Select source based on tech-order or source-order\n     * Uses source-order selection if `options.sourceOrder` is truthy. Otherwise,\n     * defaults to tech-order selection\n     *\n     * @param {Array} sources\n     *        The sources for a media asset\n     *\n     * @return {Object|boolean}\n     *         Object of source and tech order or false\n     */\n    ;\n\n    _proto.selectSource = function selectSource(sources) {\n      var _this14 = this;\n\n      // Get only the techs specified in `techOrder` that exist and are supported by the\n      // current platform\n      var techs = this.options_.techOrder.map(function (techName) {\n        return [techName, Tech.getTech(techName)];\n      }).filter(function (_ref) {\n        var techName = _ref[0],\n            tech = _ref[1];\n\n        // Check if the current tech is defined before continuing\n        if (tech) {\n          // Check if the browser supports this technology\n          return tech.isSupported();\n        }\n\n        log$1.error(\"The \\\"\" + techName + \"\\\" tech is undefined. Skipped browser support check for that tech.\");\n        return false;\n      }); // Iterate over each `innerArray` element once per `outerArray` element and execute\n      // `tester` with both. If `tester` returns a non-falsy value, exit early and return\n      // that value.\n\n      var findFirstPassingTechSourcePair = function findFirstPassingTechSourcePair(outerArray, innerArray, tester) {\n        var found;\n        outerArray.some(function (outerChoice) {\n          return innerArray.some(function (innerChoice) {\n            found = tester(outerChoice, innerChoice);\n\n            if (found) {\n              return true;\n            }\n          });\n        });\n        return found;\n      };\n\n      var foundSourceAndTech;\n\n      var flip = function flip(fn) {\n        return function (a, b) {\n          return fn(b, a);\n        };\n      };\n\n      var finder = function finder(_ref2, source) {\n        var techName = _ref2[0],\n            tech = _ref2[1];\n\n        if (tech.canPlaySource(source, _this14.options_[techName.toLowerCase()])) {\n          return {\n            source: source,\n            tech: techName\n          };\n        }\n      }; // Depending on the truthiness of `options.sourceOrder`, we swap the order of techs and sources\n      // to select from them based on their priority.\n\n\n      if (this.options_.sourceOrder) {\n        // Source-first ordering\n        foundSourceAndTech = findFirstPassingTechSourcePair(sources, techs, flip(finder));\n      } else {\n        // Tech-first ordering\n        foundSourceAndTech = findFirstPassingTechSourcePair(techs, sources, finder);\n      }\n\n      return foundSourceAndTech || false;\n    }\n    /**\n     * Executes source setting and getting logic\n     *\n     * @param {Tech~SourceObject|Tech~SourceObject[]|string} [source]\n     *        A SourceObject, an array of SourceObjects, or a string referencing\n     *        a URL to a media source. It is _highly recommended_ that an object\n     *        or array of objects is used here, so that source selection\n     *        algorithms can take the `type` into account.\n     *\n     *        If not provided, this method acts as a getter.\n     * @param {boolean} isRetry\n     *        Indicates whether this is being called internally as a result of a retry\n     *\n     * @return {string|undefined}\n     *         If the `source` argument is missing, returns the current source\n     *         URL. Otherwise, returns nothing/undefined.\n     */\n    ;\n\n    _proto.handleSrc_ = function handleSrc_(source, isRetry) {\n      var _this15 = this;\n\n      // getter usage\n      if (typeof source === 'undefined') {\n        return this.cache_.src || '';\n      } // Reset retry behavior for new source\n\n\n      if (this.resetRetryOnError_) {\n        this.resetRetryOnError_();\n      } // filter out invalid sources and turn our source into\n      // an array of source objects\n\n\n      var sources = filterSource(source); // if a source was passed in then it is invalid because\n      // it was filtered to a zero length Array. So we have to\n      // show an error\n\n      if (!sources.length) {\n        this.setTimeout(function () {\n          this.error({\n            code: 4,\n            message: this.options_.notSupportedMessage\n          });\n        }, 0);\n        return;\n      } // initial sources\n\n\n      this.changingSrc_ = true; // Only update the cached source list if we are not retrying a new source after error,\n      // since in that case we want to include the failed source(s) in the cache\n\n      if (!isRetry) {\n        this.cache_.sources = sources;\n      }\n\n      this.updateSourceCaches_(sources[0]); // middlewareSource is the source after it has been changed by middleware\n\n      setSource(this, sources[0], function (middlewareSource, mws) {\n        _this15.middleware_ = mws; // since sourceSet is async we have to update the cache again after we select a source since\n        // the source that is selected could be out of order from the cache update above this callback.\n\n        if (!isRetry) {\n          _this15.cache_.sources = sources;\n        }\n\n        _this15.updateSourceCaches_(middlewareSource);\n\n        var err = _this15.src_(middlewareSource);\n\n        if (err) {\n          if (sources.length > 1) {\n            return _this15.handleSrc_(sources.slice(1));\n          }\n\n          _this15.changingSrc_ = false; // We need to wrap this in a timeout to give folks a chance to add error event handlers\n\n          _this15.setTimeout(function () {\n            this.error({\n              code: 4,\n              message: this.options_.notSupportedMessage\n            });\n          }, 0); // we could not find an appropriate tech, but let's still notify the delegate that this is it\n          // this needs a better comment about why this is needed\n\n\n          _this15.triggerReady();\n\n          return;\n        }\n\n        setTech(mws, _this15.tech_);\n      }); // Try another available source if this one fails before playback.\n\n      if (this.options_.retryOnError && sources.length > 1) {\n        var retry = function retry() {\n          // Remove the error modal\n          _this15.error(null);\n\n          _this15.handleSrc_(sources.slice(1), true);\n        };\n\n        var stopListeningForErrors = function stopListeningForErrors() {\n          _this15.off('error', retry);\n        };\n\n        this.one('error', retry);\n        this.one('playing', stopListeningForErrors);\n\n        this.resetRetryOnError_ = function () {\n          _this15.off('error', retry);\n\n          _this15.off('playing', stopListeningForErrors);\n        };\n      }\n    }\n    /**\n     * Get or set the video source.\n     *\n     * @param {Tech~SourceObject|Tech~SourceObject[]|string} [source]\n     *        A SourceObject, an array of SourceObjects, or a string referencing\n     *        a URL to a media source. It is _highly recommended_ that an object\n     *        or array of objects is used here, so that source selection\n     *        algorithms can take the `type` into account.\n     *\n     *        If not provided, this method acts as a getter.\n     *\n     * @return {string|undefined}\n     *         If the `source` argument is missing, returns the current source\n     *         URL. Otherwise, returns nothing/undefined.\n     */\n    ;\n\n    _proto.src = function src(source) {\n      return this.handleSrc_(source, false);\n    }\n    /**\n     * Set the source object on the tech, returns a boolean that indicates whether\n     * there is a tech that can play the source or not\n     *\n     * @param {Tech~SourceObject} source\n     *        The source object to set on the Tech\n     *\n     * @return {boolean}\n     *         - True if there is no Tech to playback this source\n     *         - False otherwise\n     *\n     * @private\n     */\n    ;\n\n    _proto.src_ = function src_(source) {\n      var _this16 = this;\n\n      var sourceTech = this.selectSource([source]);\n\n      if (!sourceTech) {\n        return true;\n      }\n\n      if (!titleCaseEquals(sourceTech.tech, this.techName_)) {\n        this.changingSrc_ = true; // load this technology with the chosen source\n\n        this.loadTech_(sourceTech.tech, sourceTech.source);\n        this.tech_.ready(function () {\n          _this16.changingSrc_ = false;\n        });\n        return false;\n      } // wait until the tech is ready to set the source\n      // and set it synchronously if possible (#2326)\n\n\n      this.ready(function () {\n        // The setSource tech method was added with source handlers\n        // so older techs won't support it\n        // We need to check the direct prototype for the case where subclasses\n        // of the tech do not support source handlers\n        if (this.tech_.constructor.prototype.hasOwnProperty('setSource')) {\n          this.techCall_('setSource', source);\n        } else {\n          this.techCall_('src', source.src);\n        }\n\n        this.changingSrc_ = false;\n      }, true);\n      return false;\n    }\n    /**\n     * Begin loading the src data.\n     */\n    ;\n\n    _proto.load = function load() {\n      this.techCall_('load');\n    }\n    /**\n     * Reset the player. Loads the first tech in the techOrder,\n     * removes all the text tracks in the existing `tech`,\n     * and calls `reset` on the `tech`.\n     */\n    ;\n\n    _proto.reset = function reset() {\n      var _this17 = this;\n\n      var PromiseClass = this.options_.Promise || window.Promise;\n\n      if (this.paused() || !PromiseClass) {\n        this.doReset_();\n      } else {\n        var playPromise = this.play();\n        silencePromise(playPromise.then(function () {\n          return _this17.doReset_();\n        }));\n      }\n    };\n\n    _proto.doReset_ = function doReset_() {\n      if (this.tech_) {\n        this.tech_.clearTracks('text');\n      }\n\n      this.resetCache_();\n      this.poster('');\n      this.loadTech_(this.options_.techOrder[0], null);\n      this.techCall_('reset');\n      this.resetControlBarUI_();\n\n      if (isEvented(this)) {\n        this.trigger('playerreset');\n      }\n    }\n    /**\n     * Reset Control Bar's UI by calling sub-methods that reset\n     * all of Control Bar's components\n     */\n    ;\n\n    _proto.resetControlBarUI_ = function resetControlBarUI_() {\n      this.resetProgressBar_();\n      this.resetPlaybackRate_();\n      this.resetVolumeBar_();\n    }\n    /**\n     * Reset tech's progress so progress bar is reset in the UI\n     */\n    ;\n\n    _proto.resetProgressBar_ = function resetProgressBar_() {\n      this.currentTime(0);\n\n      var _ref3 = this.controlBar || {},\n          durationDisplay = _ref3.durationDisplay,\n          remainingTimeDisplay = _ref3.remainingTimeDisplay;\n\n      if (durationDisplay) {\n        durationDisplay.updateContent();\n      }\n\n      if (remainingTimeDisplay) {\n        remainingTimeDisplay.updateContent();\n      }\n    }\n    /**\n     * Reset Playback ratio\n     */\n    ;\n\n    _proto.resetPlaybackRate_ = function resetPlaybackRate_() {\n      this.playbackRate(this.defaultPlaybackRate());\n      this.handleTechRateChange_();\n    }\n    /**\n     * Reset Volume bar\n     */\n    ;\n\n    _proto.resetVolumeBar_ = function resetVolumeBar_() {\n      this.volume(1.0);\n      this.trigger('volumechange');\n    }\n    /**\n     * Returns all of the current source objects.\n     *\n     * @return {Tech~SourceObject[]}\n     *         The current source objects\n     */\n    ;\n\n    _proto.currentSources = function currentSources() {\n      var source = this.currentSource();\n      var sources = []; // assume `{}` or `{ src }`\n\n      if (Object.keys(source).length !== 0) {\n        sources.push(source);\n      }\n\n      return this.cache_.sources || sources;\n    }\n    /**\n     * Returns the current source object.\n     *\n     * @return {Tech~SourceObject}\n     *         The current source object\n     */\n    ;\n\n    _proto.currentSource = function currentSource() {\n      return this.cache_.source || {};\n    }\n    /**\n     * Returns the fully qualified URL of the current source value e.g. http://mysite.com/video.mp4\n     * Can be used in conjunction with `currentType` to assist in rebuilding the current source object.\n     *\n     * @return {string}\n     *         The current source\n     */\n    ;\n\n    _proto.currentSrc = function currentSrc() {\n      return this.currentSource() && this.currentSource().src || '';\n    }\n    /**\n     * Get the current source type e.g. video/mp4\n     * This can allow you rebuild the current source object so that you could load the same\n     * source and tech later\n     *\n     * @return {string}\n     *         The source MIME type\n     */\n    ;\n\n    _proto.currentType = function currentType() {\n      return this.currentSource() && this.currentSource().type || '';\n    }\n    /**\n     * Get or set the preload attribute\n     *\n     * @param {boolean} [value]\n     *        - true means that we should preload\n     *        - false means that we should not preload\n     *\n     * @return {string}\n     *         The preload attribute value when getting\n     */\n    ;\n\n    _proto.preload = function preload(value) {\n      if (value !== undefined) {\n        this.techCall_('setPreload', value);\n        this.options_.preload = value;\n        return;\n      }\n\n      return this.techGet_('preload');\n    }\n    /**\n     * Get or set the autoplay option. When this is a boolean it will\n     * modify the attribute on the tech. When this is a string the attribute on\n     * the tech will be removed and `Player` will handle autoplay on loadstarts.\n     *\n     * @param {boolean|string} [value]\n     *        - true: autoplay using the browser behavior\n     *        - false: do not autoplay\n     *        - 'play': call play() on every loadstart\n     *        - 'muted': call muted() then play() on every loadstart\n     *        - 'any': call play() on every loadstart. if that fails call muted() then play().\n     *        - *: values other than those listed here will be set `autoplay` to true\n     *\n     * @return {boolean|string}\n     *         The current value of autoplay when getting\n     */\n    ;\n\n    _proto.autoplay = function autoplay(value) {\n      // getter usage\n      if (value === undefined) {\n        return this.options_.autoplay || false;\n      }\n\n      var techAutoplay; // if the value is a valid string set it to that, or normalize `true` to 'play', if need be\n\n      if (typeof value === 'string' && /(any|play|muted)/.test(value) || value === true && this.options_.normalizeAutoplay) {\n        this.options_.autoplay = value;\n        this.manualAutoplay_(typeof value === 'string' ? value : 'play');\n        techAutoplay = false; // any falsy value sets autoplay to false in the browser,\n        // lets do the same\n      } else if (!value) {\n        this.options_.autoplay = false; // any other value (ie truthy) sets autoplay to true\n      } else {\n        this.options_.autoplay = true;\n      }\n\n      techAutoplay = typeof techAutoplay === 'undefined' ? this.options_.autoplay : techAutoplay; // if we don't have a tech then we do not queue up\n      // a setAutoplay call on tech ready. We do this because the\n      // autoplay option will be passed in the constructor and we\n      // do not need to set it twice\n\n      if (this.tech_) {\n        this.techCall_('setAutoplay', techAutoplay);\n      }\n    }\n    /**\n     * Set or unset the playsinline attribute.\n     * Playsinline tells the browser that non-fullscreen playback is preferred.\n     *\n     * @param {boolean} [value]\n     *        - true means that we should try to play inline by default\n     *        - false means that we should use the browser's default playback mode,\n     *          which in most cases is inline. iOS Safari is a notable exception\n     *          and plays fullscreen by default.\n     *\n     * @return {string|Player}\n     *         - the current value of playsinline\n     *         - the player when setting\n     *\n     * @see [Spec]{@link https://html.spec.whatwg.org/#attr-video-playsinline}\n     */\n    ;\n\n    _proto.playsinline = function playsinline(value) {\n      if (value !== undefined) {\n        this.techCall_('setPlaysinline', value);\n        this.options_.playsinline = value;\n        return this;\n      }\n\n      return this.techGet_('playsinline');\n    }\n    /**\n     * Get or set the loop attribute on the video element.\n     *\n     * @param {boolean} [value]\n     *        - true means that we should loop the video\n     *        - false means that we should not loop the video\n     *\n     * @return {boolean}\n     *         The current value of loop when getting\n     */\n    ;\n\n    _proto.loop = function loop(value) {\n      if (value !== undefined) {\n        this.techCall_('setLoop', value);\n        this.options_.loop = value;\n        return;\n      }\n\n      return this.techGet_('loop');\n    }\n    /**\n     * Get or set the poster image source url\n     *\n     * @fires Player#posterchange\n     *\n     * @param {string} [src]\n     *        Poster image source URL\n     *\n     * @return {string}\n     *         The current value of poster when getting\n     */\n    ;\n\n    _proto.poster = function poster(src) {\n      if (src === undefined) {\n        return this.poster_;\n      } // The correct way to remove a poster is to set as an empty string\n      // other falsey values will throw errors\n\n\n      if (!src) {\n        src = '';\n      }\n\n      if (src === this.poster_) {\n        return;\n      } // update the internal poster variable\n\n\n      this.poster_ = src; // update the tech's poster\n\n      this.techCall_('setPoster', src);\n      this.isPosterFromTech_ = false; // alert components that the poster has been set\n\n      /**\n       * This event fires when the poster image is changed on the player.\n       *\n       * @event Player#posterchange\n       * @type {EventTarget~Event}\n       */\n\n      this.trigger('posterchange');\n    }\n    /**\n     * Some techs (e.g. YouTube) can provide a poster source in an\n     * asynchronous way. We want the poster component to use this\n     * poster source so that it covers up the tech's controls.\n     * (YouTube's play button). However we only want to use this\n     * source if the player user hasn't set a poster through\n     * the normal APIs.\n     *\n     * @fires Player#posterchange\n     * @listens Tech#posterchange\n     * @private\n     */\n    ;\n\n    _proto.handleTechPosterChange_ = function handleTechPosterChange_() {\n      if ((!this.poster_ || this.options_.techCanOverridePoster) && this.tech_ && this.tech_.poster) {\n        var newPoster = this.tech_.poster() || '';\n\n        if (newPoster !== this.poster_) {\n          this.poster_ = newPoster;\n          this.isPosterFromTech_ = true; // Let components know the poster has changed\n\n          this.trigger('posterchange');\n        }\n      }\n    }\n    /**\n     * Get or set whether or not the controls are showing.\n     *\n     * @fires Player#controlsenabled\n     *\n     * @param {boolean} [bool]\n     *        - true to turn controls on\n     *        - false to turn controls off\n     *\n     * @return {boolean}\n     *         The current value of controls when getting\n     */\n    ;\n\n    _proto.controls = function controls(bool) {\n      if (bool === undefined) {\n        return !!this.controls_;\n      }\n\n      bool = !!bool; // Don't trigger a change event unless it actually changed\n\n      if (this.controls_ === bool) {\n        return;\n      }\n\n      this.controls_ = bool;\n\n      if (this.usingNativeControls()) {\n        this.techCall_('setControls', bool);\n      }\n\n      if (this.controls_) {\n        this.removeClass('vjs-controls-disabled');\n        this.addClass('vjs-controls-enabled');\n        /**\n         * @event Player#controlsenabled\n         * @type {EventTarget~Event}\n         */\n\n        this.trigger('controlsenabled');\n\n        if (!this.usingNativeControls()) {\n          this.addTechControlsListeners_();\n        }\n      } else {\n        this.removeClass('vjs-controls-enabled');\n        this.addClass('vjs-controls-disabled');\n        /**\n         * @event Player#controlsdisabled\n         * @type {EventTarget~Event}\n         */\n\n        this.trigger('controlsdisabled');\n\n        if (!this.usingNativeControls()) {\n          this.removeTechControlsListeners_();\n        }\n      }\n    }\n    /**\n     * Toggle native controls on/off. Native controls are the controls built into\n     * devices (e.g. default iPhone controls) or other techs\n     * (e.g. Vimeo Controls)\n     * **This should only be set by the current tech, because only the tech knows\n     * if it can support native controls**\n     *\n     * @fires Player#usingnativecontrols\n     * @fires Player#usingcustomcontrols\n     *\n     * @param {boolean} [bool]\n     *        - true to turn native controls on\n     *        - false to turn native controls off\n     *\n     * @return {boolean}\n     *         The current value of native controls when getting\n     */\n    ;\n\n    _proto.usingNativeControls = function usingNativeControls(bool) {\n      if (bool === undefined) {\n        return !!this.usingNativeControls_;\n      }\n\n      bool = !!bool; // Don't trigger a change event unless it actually changed\n\n      if (this.usingNativeControls_ === bool) {\n        return;\n      }\n\n      this.usingNativeControls_ = bool;\n\n      if (this.usingNativeControls_) {\n        this.addClass('vjs-using-native-controls');\n        /**\n         * player is using the native device controls\n         *\n         * @event Player#usingnativecontrols\n         * @type {EventTarget~Event}\n         */\n\n        this.trigger('usingnativecontrols');\n      } else {\n        this.removeClass('vjs-using-native-controls');\n        /**\n         * player is using the custom HTML controls\n         *\n         * @event Player#usingcustomcontrols\n         * @type {EventTarget~Event}\n         */\n\n        this.trigger('usingcustomcontrols');\n      }\n    }\n    /**\n     * Set or get the current MediaError\n     *\n     * @fires Player#error\n     *\n     * @param  {MediaError|string|number} [err]\n     *         A MediaError or a string/number to be turned\n     *         into a MediaError\n     *\n     * @return {MediaError|null}\n     *         The current MediaError when getting (or null)\n     */\n    ;\n\n    _proto.error = function error(err) {\n      var _this18 = this;\n\n      if (err === undefined) {\n        return this.error_ || null;\n      } // allow hooks to modify error object\n\n\n      hooks('beforeerror').forEach(function (hookFunction) {\n        var newErr = hookFunction(_this18, err);\n\n        if (!(isObject$1(newErr) && !Array.isArray(newErr) || typeof newErr === 'string' || typeof newErr === 'number' || newErr === null)) {\n          _this18.log.error('please return a value that MediaError expects in beforeerror hooks');\n\n          return;\n        }\n\n        err = newErr;\n      }); // Suppress the first error message for no compatible source until\n      // user interaction\n\n      if (this.options_.suppressNotSupportedError && err && err.code === 4) {\n        var triggerSuppressedError = function triggerSuppressedError() {\n          this.error(err);\n        };\n\n        this.options_.suppressNotSupportedError = false;\n        this.any(['click', 'touchstart'], triggerSuppressedError);\n        this.one('loadstart', function () {\n          this.off(['click', 'touchstart'], triggerSuppressedError);\n        });\n        return;\n      } // restoring to default\n\n\n      if (err === null) {\n        this.error_ = err;\n        this.removeClass('vjs-error');\n\n        if (this.errorDisplay) {\n          this.errorDisplay.close();\n        }\n\n        return;\n      }\n\n      this.error_ = new MediaError(err); // add the vjs-error classname to the player\n\n      this.addClass('vjs-error'); // log the name of the error type and any message\n      // IE11 logs \"[object object]\" and required you to expand message to see error object\n\n      log$1.error(\"(CODE:\" + this.error_.code + \" \" + MediaError.errorTypes[this.error_.code] + \")\", this.error_.message, this.error_);\n      /**\n       * @event Player#error\n       * @type {EventTarget~Event}\n       */\n\n      this.trigger('error'); // notify hooks of the per player error\n\n      hooks('error').forEach(function (hookFunction) {\n        return hookFunction(_this18, _this18.error_);\n      });\n      return;\n    }\n    /**\n     * Report user activity\n     *\n     * @param {Object} event\n     *        Event object\n     */\n    ;\n\n    _proto.reportUserActivity = function reportUserActivity(event) {\n      this.userActivity_ = true;\n    }\n    /**\n     * Get/set if user is active\n     *\n     * @fires Player#useractive\n     * @fires Player#userinactive\n     *\n     * @param {boolean} [bool]\n     *        - true if the user is active\n     *        - false if the user is inactive\n     *\n     * @return {boolean}\n     *         The current value of userActive when getting\n     */\n    ;\n\n    _proto.userActive = function userActive(bool) {\n      if (bool === undefined) {\n        return this.userActive_;\n      }\n\n      bool = !!bool;\n\n      if (bool === this.userActive_) {\n        return;\n      }\n\n      this.userActive_ = bool;\n\n      if (this.userActive_) {\n        this.userActivity_ = true;\n        this.removeClass('vjs-user-inactive');\n        this.addClass('vjs-user-active');\n        /**\n         * @event Player#useractive\n         * @type {EventTarget~Event}\n         */\n\n        this.trigger('useractive');\n        return;\n      } // Chrome/Safari/IE have bugs where when you change the cursor it can\n      // trigger a mousemove event. This causes an issue when you're hiding\n      // the cursor when the user is inactive, and a mousemove signals user\n      // activity. Making it impossible to go into inactive mode. Specifically\n      // this happens in fullscreen when we really need to hide the cursor.\n      //\n      // When this gets resolved in ALL browsers it can be removed\n      // https://code.google.com/p/chromium/issues/detail?id=103041\n\n\n      if (this.tech_) {\n        this.tech_.one('mousemove', function (e) {\n          e.stopPropagation();\n          e.preventDefault();\n        });\n      }\n\n      this.userActivity_ = false;\n      this.removeClass('vjs-user-active');\n      this.addClass('vjs-user-inactive');\n      /**\n       * @event Player#userinactive\n       * @type {EventTarget~Event}\n       */\n\n      this.trigger('userinactive');\n    }\n    /**\n     * Listen for user activity based on timeout value\n     *\n     * @private\n     */\n    ;\n\n    _proto.listenForUserActivity_ = function listenForUserActivity_() {\n      var mouseInProgress;\n      var lastMoveX;\n      var lastMoveY;\n      var handleActivity = bind(this, this.reportUserActivity);\n\n      var handleMouseMove = function handleMouseMove(e) {\n        // #1068 - Prevent mousemove spamming\n        // Chrome Bug: https://code.google.com/p/chromium/issues/detail?id=366970\n        if (e.screenX !== lastMoveX || e.screenY !== lastMoveY) {\n          lastMoveX = e.screenX;\n          lastMoveY = e.screenY;\n          handleActivity();\n        }\n      };\n\n      var handleMouseDown = function handleMouseDown() {\n        handleActivity(); // For as long as the they are touching the device or have their mouse down,\n        // we consider them active even if they're not moving their finger or mouse.\n        // So we want to continue to update that they are active\n\n        this.clearInterval(mouseInProgress); // Setting userActivity=true now and setting the interval to the same time\n        // as the activityCheck interval (250) should ensure we never miss the\n        // next activityCheck\n\n        mouseInProgress = this.setInterval(handleActivity, 250);\n      };\n\n      var handleMouseUpAndMouseLeave = function handleMouseUpAndMouseLeave(event) {\n        handleActivity(); // Stop the interval that maintains activity if the mouse/touch is down\n\n        this.clearInterval(mouseInProgress);\n      }; // Any mouse movement will be considered user activity\n\n\n      this.on('mousedown', handleMouseDown);\n      this.on('mousemove', handleMouseMove);\n      this.on('mouseup', handleMouseUpAndMouseLeave);\n      this.on('mouseleave', handleMouseUpAndMouseLeave);\n      var controlBar = this.getChild('controlBar'); // Fixes bug on Android & iOS where when tapping progressBar (when control bar is displayed)\n      // controlBar would no longer be hidden by default timeout.\n\n      if (controlBar && !IS_IOS && !IS_ANDROID) {\n        controlBar.on('mouseenter', function (event) {\n          if (this.player().options_.inactivityTimeout !== 0) {\n            this.player().cache_.inactivityTimeout = this.player().options_.inactivityTimeout;\n          }\n\n          this.player().options_.inactivityTimeout = 0;\n        });\n        controlBar.on('mouseleave', function (event) {\n          this.player().options_.inactivityTimeout = this.player().cache_.inactivityTimeout;\n        });\n      } // Listen for keyboard navigation\n      // Shouldn't need to use inProgress interval because of key repeat\n\n\n      this.on('keydown', handleActivity);\n      this.on('keyup', handleActivity); // Run an interval every 250 milliseconds instead of stuffing everything into\n      // the mousemove/touchmove function itself, to prevent performance degradation.\n      // `this.reportUserActivity` simply sets this.userActivity_ to true, which\n      // then gets picked up by this loop\n      // http://ejohn.org/blog/learning-from-twitter/\n\n      var inactivityTimeout;\n      this.setInterval(function () {\n        // Check to see if mouse/touch activity has happened\n        if (!this.userActivity_) {\n          return;\n        } // Reset the activity tracker\n\n\n        this.userActivity_ = false; // If the user state was inactive, set the state to active\n\n        this.userActive(true); // Clear any existing inactivity timeout to start the timer over\n\n        this.clearTimeout(inactivityTimeout);\n        var timeout = this.options_.inactivityTimeout;\n\n        if (timeout <= 0) {\n          return;\n        } // In <timeout> milliseconds, if no more activity has occurred the\n        // user will be considered inactive\n\n\n        inactivityTimeout = this.setTimeout(function () {\n          // Protect against the case where the inactivityTimeout can trigger just\n          // before the next user activity is picked up by the activity check loop\n          // causing a flicker\n          if (!this.userActivity_) {\n            this.userActive(false);\n          }\n        }, timeout);\n      }, 250);\n    }\n    /**\n     * Gets or sets the current playback rate. A playback rate of\n     * 1.0 represents normal speed and 0.5 would indicate half-speed\n     * playback, for instance.\n     *\n     * @see https://html.spec.whatwg.org/multipage/embedded-content.html#dom-media-playbackrate\n     *\n     * @param {number} [rate]\n     *       New playback rate to set.\n     *\n     * @return {number}\n     *         The current playback rate when getting or 1.0\n     */\n    ;\n\n    _proto.playbackRate = function playbackRate(rate) {\n      if (rate !== undefined) {\n        // NOTE: this.cache_.lastPlaybackRate is set from the tech handler\n        // that is registered above\n        this.techCall_('setPlaybackRate', rate);\n        return;\n      }\n\n      if (this.tech_ && this.tech_.featuresPlaybackRate) {\n        return this.cache_.lastPlaybackRate || this.techGet_('playbackRate');\n      }\n\n      return 1.0;\n    }\n    /**\n     * Gets or sets the current default playback rate. A default playback rate of\n     * 1.0 represents normal speed and 0.5 would indicate half-speed playback, for instance.\n     * defaultPlaybackRate will only represent what the initial playbackRate of a video was, not\n     * not the current playbackRate.\n     *\n     * @see https://html.spec.whatwg.org/multipage/embedded-content.html#dom-media-defaultplaybackrate\n     *\n     * @param {number} [rate]\n     *       New default playback rate to set.\n     *\n     * @return {number|Player}\n     *         - The default playback rate when getting or 1.0\n     *         - the player when setting\n     */\n    ;\n\n    _proto.defaultPlaybackRate = function defaultPlaybackRate(rate) {\n      if (rate !== undefined) {\n        return this.techCall_('setDefaultPlaybackRate', rate);\n      }\n\n      if (this.tech_ && this.tech_.featuresPlaybackRate) {\n        return this.techGet_('defaultPlaybackRate');\n      }\n\n      return 1.0;\n    }\n    /**\n     * Gets or sets the audio flag\n     *\n     * @param {boolean} bool\n     *        - true signals that this is an audio player\n     *        - false signals that this is not an audio player\n     *\n     * @return {boolean}\n     *         The current value of isAudio when getting\n     */\n    ;\n\n    _proto.isAudio = function isAudio(bool) {\n      if (bool !== undefined) {\n        this.isAudio_ = !!bool;\n        return;\n      }\n\n      return !!this.isAudio_;\n    };\n\n    _proto.enableAudioOnlyUI_ = function enableAudioOnlyUI_() {\n      var _this19 = this;\n\n      // Update styling immediately to show the control bar so we can get its height\n      this.addClass('vjs-audio-only-mode');\n      var playerChildren = this.children();\n      var controlBar = this.getChild('ControlBar');\n      var controlBarHeight = controlBar && controlBar.currentHeight(); // Hide all player components except the control bar. Control bar components\n      // needed only for video are hidden with CSS\n\n      playerChildren.forEach(function (child) {\n        if (child === controlBar) {\n          return;\n        }\n\n        if (child.el_ && !child.hasClass('vjs-hidden')) {\n          child.hide();\n\n          _this19.audioOnlyCache_.hiddenChildren.push(child);\n        }\n      });\n      this.audioOnlyCache_.playerHeight = this.currentHeight(); // Set the player height the same as the control bar\n\n      this.height(controlBarHeight);\n      this.trigger('audioonlymodechange');\n    };\n\n    _proto.disableAudioOnlyUI_ = function disableAudioOnlyUI_() {\n      this.removeClass('vjs-audio-only-mode'); // Show player components that were previously hidden\n\n      this.audioOnlyCache_.hiddenChildren.forEach(function (child) {\n        return child.show();\n      }); // Reset player height\n\n      this.height(this.audioOnlyCache_.playerHeight);\n      this.trigger('audioonlymodechange');\n    }\n    /**\n     * Get the current audioOnlyMode state or set audioOnlyMode to true or false.\n     *\n     * Setting this to `true` will hide all player components except the control bar,\n     * as well as control bar components needed only for video.\n     *\n     * @param {boolean} [value]\n     *         The value to set audioOnlyMode to.\n     *\n     * @return {Promise|boolean}\n     *        A Promise is returned when setting the state, and a boolean when getting\n     *        the present state\n     */\n    ;\n\n    _proto.audioOnlyMode = function audioOnlyMode(value) {\n      var _this20 = this;\n\n      if (typeof value !== 'boolean' || value === this.audioOnlyMode_) {\n        return this.audioOnlyMode_;\n      }\n\n      this.audioOnlyMode_ = value;\n      var PromiseClass = this.options_.Promise || window.Promise;\n\n      if (PromiseClass) {\n        // Enable Audio Only Mode\n        if (value) {\n          var exitPromises = []; // Fullscreen and PiP are not supported in audioOnlyMode, so exit if we need to.\n\n          if (this.isInPictureInPicture()) {\n            exitPromises.push(this.exitPictureInPicture());\n          }\n\n          if (this.isFullscreen()) {\n            exitPromises.push(this.exitFullscreen());\n          }\n\n          if (this.audioPosterMode()) {\n            exitPromises.push(this.audioPosterMode(false));\n          }\n\n          return PromiseClass.all(exitPromises).then(function () {\n            return _this20.enableAudioOnlyUI_();\n          });\n        } // Disable Audio Only Mode\n\n\n        return PromiseClass.resolve().then(function () {\n          return _this20.disableAudioOnlyUI_();\n        });\n      }\n\n      if (value) {\n        if (this.isInPictureInPicture()) {\n          this.exitPictureInPicture();\n        }\n\n        if (this.isFullscreen()) {\n          this.exitFullscreen();\n        }\n\n        this.enableAudioOnlyUI_();\n      } else {\n        this.disableAudioOnlyUI_();\n      }\n    };\n\n    _proto.enablePosterModeUI_ = function enablePosterModeUI_() {\n      // Hide the video element and show the poster image to enable posterModeUI\n      var tech = this.tech_ && this.tech_;\n      tech.hide();\n      this.addClass('vjs-audio-poster-mode');\n      this.trigger('audiopostermodechange');\n    };\n\n    _proto.disablePosterModeUI_ = function disablePosterModeUI_() {\n      // Show the video element and hide the poster image to disable posterModeUI\n      var tech = this.tech_ && this.tech_;\n      tech.show();\n      this.removeClass('vjs-audio-poster-mode');\n      this.trigger('audiopostermodechange');\n    }\n    /**\n     * Get the current audioPosterMode state or set audioPosterMode to true or false\n     *\n     * @param {boolean} [value]\n     *         The value to set audioPosterMode to.\n     *\n     * @return {Promise|boolean}\n     *         A Promise is returned when setting the state, and a boolean when getting\n     *        the present state\n     */\n    ;\n\n    _proto.audioPosterMode = function audioPosterMode(value) {\n      var _this21 = this;\n\n      if (typeof value !== 'boolean' || value === this.audioPosterMode_) {\n        return this.audioPosterMode_;\n      }\n\n      this.audioPosterMode_ = value;\n      var PromiseClass = this.options_.Promise || window.Promise;\n\n      if (PromiseClass) {\n        if (value) {\n          if (this.audioOnlyMode()) {\n            var audioOnlyModePromise = this.audioOnlyMode(false);\n            return audioOnlyModePromise.then(function () {\n              // enable audio poster mode after audio only mode is disabled\n              _this21.enablePosterModeUI_();\n            });\n          }\n\n          return PromiseClass.resolve().then(function () {\n            // enable audio poster mode\n            _this21.enablePosterModeUI_();\n          });\n        }\n\n        return PromiseClass.resolve().then(function () {\n          // disable audio poster mode\n          _this21.disablePosterModeUI_();\n        });\n      }\n\n      if (value) {\n        if (this.audioOnlyMode()) {\n          this.audioOnlyMode(false);\n        }\n\n        this.enablePosterModeUI_();\n        return;\n      }\n\n      this.disablePosterModeUI_();\n    }\n    /**\n     * A helper method for adding a {@link TextTrack} to our\n     * {@link TextTrackList}.\n     *\n     * In addition to the W3C settings we allow adding additional info through options.\n     *\n     * @see http://www.w3.org/html/wg/drafts/html/master/embedded-content-0.html#dom-media-addtexttrack\n     *\n     * @param {string} [kind]\n     *        the kind of TextTrack you are adding\n     *\n     * @param {string} [label]\n     *        the label to give the TextTrack label\n     *\n     * @param {string} [language]\n     *        the language to set on the TextTrack\n     *\n     * @return {TextTrack|undefined}\n     *         the TextTrack that was added or undefined\n     *         if there is no tech\n     */\n    ;\n\n    _proto.addTextTrack = function addTextTrack(kind, label, language) {\n      if (this.tech_) {\n        return this.tech_.addTextTrack(kind, label, language);\n      }\n    }\n    /**\n     * Create a remote {@link TextTrack} and an {@link HTMLTrackElement}.\n     * When manualCleanup is set to false, the track will be automatically removed\n     * on source changes.\n     *\n     * @param {Object} options\n     *        Options to pass to {@link HTMLTrackElement} during creation. See\n     *        {@link HTMLTrackElement} for object properties that you should use.\n     *\n     * @param {boolean} [manualCleanup=true] if set to false, the TextTrack will be\n     *                                       removed on a source change\n     *\n     * @return {HtmlTrackElement}\n     *         the HTMLTrackElement that was created and added\n     *         to the HtmlTrackElementList and the remote\n     *         TextTrackList\n     *\n     * @deprecated The default value of the \"manualCleanup\" parameter will default\n     *             to \"false\" in upcoming versions of Video.js\n     */\n    ;\n\n    _proto.addRemoteTextTrack = function addRemoteTextTrack(options, manualCleanup) {\n      if (this.tech_) {\n        return this.tech_.addRemoteTextTrack(options, manualCleanup);\n      }\n    }\n    /**\n     * Remove a remote {@link TextTrack} from the respective\n     * {@link TextTrackList} and {@link HtmlTrackElementList}.\n     *\n     * @param {Object} track\n     *        Remote {@link TextTrack} to remove\n     *\n     * @return {undefined}\n     *         does not return anything\n     */\n    ;\n\n    _proto.removeRemoteTextTrack = function removeRemoteTextTrack(obj) {\n      if (obj === void 0) {\n        obj = {};\n      }\n\n      var _obj = obj,\n          track = _obj.track;\n\n      if (!track) {\n        track = obj;\n      } // destructure the input into an object with a track argument, defaulting to arguments[0]\n      // default the whole argument to an empty object if nothing was passed in\n\n\n      if (this.tech_) {\n        return this.tech_.removeRemoteTextTrack(track);\n      }\n    }\n    /**\n     * Gets available media playback quality metrics as specified by the W3C's Media\n     * Playback Quality API.\n     *\n     * @see [Spec]{@link https://wicg.github.io/media-playback-quality}\n     *\n     * @return {Object|undefined}\n     *         An object with supported media playback quality metrics or undefined if there\n     *         is no tech or the tech does not support it.\n     */\n    ;\n\n    _proto.getVideoPlaybackQuality = function getVideoPlaybackQuality() {\n      return this.techGet_('getVideoPlaybackQuality');\n    }\n    /**\n     * Get video width\n     *\n     * @return {number}\n     *         current video width\n     */\n    ;\n\n    _proto.videoWidth = function videoWidth() {\n      return this.tech_ && this.tech_.videoWidth && this.tech_.videoWidth() || 0;\n    }\n    /**\n     * Get video height\n     *\n     * @return {number}\n     *         current video height\n     */\n    ;\n\n    _proto.videoHeight = function videoHeight() {\n      return this.tech_ && this.tech_.videoHeight && this.tech_.videoHeight() || 0;\n    }\n    /**\n     * The player's language code.\n     *\n     * Changing the language will trigger\n     * [languagechange]{@link Player#event:languagechange}\n     * which Components can use to update control text.\n     * ClickableComponent will update its control text by default on\n     * [languagechange]{@link Player#event:languagechange}.\n     *\n     * @fires Player#languagechange\n     *\n     * @param {string} [code]\n     *        the language code to set the player to\n     *\n     * @return {string}\n     *         The current language code when getting\n     */\n    ;\n\n    _proto.language = function language(code) {\n      if (code === undefined) {\n        return this.language_;\n      }\n\n      if (this.language_ !== String(code).toLowerCase()) {\n        this.language_ = String(code).toLowerCase(); // during first init, it's possible some things won't be evented\n\n        if (isEvented(this)) {\n          /**\n          * fires when the player language change\n          *\n          * @event Player#languagechange\n          * @type {EventTarget~Event}\n          */\n          this.trigger('languagechange');\n        }\n      }\n    }\n    /**\n     * Get the player's language dictionary\n     * Merge every time, because a newly added plugin might call videojs.addLanguage() at any time\n     * Languages specified directly in the player options have precedence\n     *\n     * @return {Array}\n     *         An array of of supported languages\n     */\n    ;\n\n    _proto.languages = function languages() {\n      return mergeOptions$3(Player.prototype.options_.languages, this.languages_);\n    }\n    /**\n     * returns a JavaScript object reperesenting the current track\n     * information. **DOES not return it as JSON**\n     *\n     * @return {Object}\n     *         Object representing the current of track info\n     */\n    ;\n\n    _proto.toJSON = function toJSON() {\n      var options = mergeOptions$3(this.options_);\n      var tracks = options.tracks;\n      options.tracks = [];\n\n      for (var i = 0; i < tracks.length; i++) {\n        var track = tracks[i]; // deep merge tracks and null out player so no circular references\n\n        track = mergeOptions$3(track);\n        track.player = undefined;\n        options.tracks[i] = track;\n      }\n\n      return options;\n    }\n    /**\n     * Creates a simple modal dialog (an instance of the {@link ModalDialog}\n     * component) that immediately overlays the player with arbitrary\n     * content and removes itself when closed.\n     *\n     * @param {string|Function|Element|Array|null} content\n     *        Same as {@link ModalDialog#content}'s param of the same name.\n     *        The most straight-forward usage is to provide a string or DOM\n     *        element.\n     *\n     * @param {Object} [options]\n     *        Extra options which will be passed on to the {@link ModalDialog}.\n     *\n     * @return {ModalDialog}\n     *         the {@link ModalDialog} that was created\n     */\n    ;\n\n    _proto.createModal = function createModal(content, options) {\n      var _this22 = this;\n\n      options = options || {};\n      options.content = content || '';\n      var modal = new ModalDialog(this, options);\n      this.addChild(modal);\n      modal.on('dispose', function () {\n        _this22.removeChild(modal);\n      });\n      modal.open();\n      return modal;\n    }\n    /**\n     * Change breakpoint classes when the player resizes.\n     *\n     * @private\n     */\n    ;\n\n    _proto.updateCurrentBreakpoint_ = function updateCurrentBreakpoint_() {\n      if (!this.responsive()) {\n        return;\n      }\n\n      var currentBreakpoint = this.currentBreakpoint();\n      var currentWidth = this.currentWidth();\n\n      for (var i = 0; i < BREAKPOINT_ORDER.length; i++) {\n        var candidateBreakpoint = BREAKPOINT_ORDER[i];\n        var maxWidth = this.breakpoints_[candidateBreakpoint];\n\n        if (currentWidth <= maxWidth) {\n          // The current breakpoint did not change, nothing to do.\n          if (currentBreakpoint === candidateBreakpoint) {\n            return;\n          } // Only remove a class if there is a current breakpoint.\n\n\n          if (currentBreakpoint) {\n            this.removeClass(BREAKPOINT_CLASSES[currentBreakpoint]);\n          }\n\n          this.addClass(BREAKPOINT_CLASSES[candidateBreakpoint]);\n          this.breakpoint_ = candidateBreakpoint;\n          break;\n        }\n      }\n    }\n    /**\n     * Removes the current breakpoint.\n     *\n     * @private\n     */\n    ;\n\n    _proto.removeCurrentBreakpoint_ = function removeCurrentBreakpoint_() {\n      var className = this.currentBreakpointClass();\n      this.breakpoint_ = '';\n\n      if (className) {\n        this.removeClass(className);\n      }\n    }\n    /**\n     * Get or set breakpoints on the player.\n     *\n     * Calling this method with an object or `true` will remove any previous\n     * custom breakpoints and start from the defaults again.\n     *\n     * @param  {Object|boolean} [breakpoints]\n     *         If an object is given, it can be used to provide custom\n     *         breakpoints. If `true` is given, will set default breakpoints.\n     *         If this argument is not given, will simply return the current\n     *         breakpoints.\n     *\n     * @param  {number} [breakpoints.tiny]\n     *         The maximum width for the \"vjs-layout-tiny\" class.\n     *\n     * @param  {number} [breakpoints.xsmall]\n     *         The maximum width for the \"vjs-layout-x-small\" class.\n     *\n     * @param  {number} [breakpoints.small]\n     *         The maximum width for the \"vjs-layout-small\" class.\n     *\n     * @param  {number} [breakpoints.medium]\n     *         The maximum width for the \"vjs-layout-medium\" class.\n     *\n     * @param  {number} [breakpoints.large]\n     *         The maximum width for the \"vjs-layout-large\" class.\n     *\n     * @param  {number} [breakpoints.xlarge]\n     *         The maximum width for the \"vjs-layout-x-large\" class.\n     *\n     * @param  {number} [breakpoints.huge]\n     *         The maximum width for the \"vjs-layout-huge\" class.\n     *\n     * @return {Object}\n     *         An object mapping breakpoint names to maximum width values.\n     */\n    ;\n\n    _proto.breakpoints = function breakpoints(_breakpoints) {\n      // Used as a getter.\n      if (_breakpoints === undefined) {\n        return assign(this.breakpoints_);\n      }\n\n      this.breakpoint_ = '';\n      this.breakpoints_ = assign({}, DEFAULT_BREAKPOINTS, _breakpoints); // When breakpoint definitions change, we need to update the currently\n      // selected breakpoint.\n\n      this.updateCurrentBreakpoint_(); // Clone the breakpoints before returning.\n\n      return assign(this.breakpoints_);\n    }\n    /**\n     * Get or set a flag indicating whether or not this player should adjust\n     * its UI based on its dimensions.\n     *\n     * @param  {boolean} value\n     *         Should be `true` if the player should adjust its UI based on its\n     *         dimensions; otherwise, should be `false`.\n     *\n     * @return {boolean}\n     *         Will be `true` if this player should adjust its UI based on its\n     *         dimensions; otherwise, will be `false`.\n     */\n    ;\n\n    _proto.responsive = function responsive(value) {\n      // Used as a getter.\n      if (value === undefined) {\n        return this.responsive_;\n      }\n\n      value = Boolean(value);\n      var current = this.responsive_; // Nothing changed.\n\n      if (value === current) {\n        return;\n      } // The value actually changed, set it.\n\n\n      this.responsive_ = value; // Start listening for breakpoints and set the initial breakpoint if the\n      // player is now responsive.\n\n      if (value) {\n        this.on('playerresize', this.boundUpdateCurrentBreakpoint_);\n        this.updateCurrentBreakpoint_(); // Stop listening for breakpoints if the player is no longer responsive.\n      } else {\n        this.off('playerresize', this.boundUpdateCurrentBreakpoint_);\n        this.removeCurrentBreakpoint_();\n      }\n\n      return value;\n    }\n    /**\n     * Get current breakpoint name, if any.\n     *\n     * @return {string}\n     *         If there is currently a breakpoint set, returns a the key from the\n     *         breakpoints object matching it. Otherwise, returns an empty string.\n     */\n    ;\n\n    _proto.currentBreakpoint = function currentBreakpoint() {\n      return this.breakpoint_;\n    }\n    /**\n     * Get the current breakpoint class name.\n     *\n     * @return {string}\n     *         The matching class name (e.g. `\"vjs-layout-tiny\"` or\n     *         `\"vjs-layout-large\"`) for the current breakpoint. Empty string if\n     *         there is no current breakpoint.\n     */\n    ;\n\n    _proto.currentBreakpointClass = function currentBreakpointClass() {\n      return BREAKPOINT_CLASSES[this.breakpoint_] || '';\n    }\n    /**\n     * An object that describes a single piece of media.\n     *\n     * Properties that are not part of this type description will be retained; so,\n     * this can be viewed as a generic metadata storage mechanism as well.\n     *\n     * @see      {@link https://wicg.github.io/mediasession/#the-mediametadata-interface}\n     * @typedef  {Object} Player~MediaObject\n     *\n     * @property {string} [album]\n     *           Unused, except if this object is passed to the `MediaSession`\n     *           API.\n     *\n     * @property {string} [artist]\n     *           Unused, except if this object is passed to the `MediaSession`\n     *           API.\n     *\n     * @property {Object[]} [artwork]\n     *           Unused, except if this object is passed to the `MediaSession`\n     *           API. If not specified, will be populated via the `poster`, if\n     *           available.\n     *\n     * @property {string} [poster]\n     *           URL to an image that will display before playback.\n     *\n     * @property {Tech~SourceObject|Tech~SourceObject[]|string} [src]\n     *           A single source object, an array of source objects, or a string\n     *           referencing a URL to a media source. It is _highly recommended_\n     *           that an object or array of objects is used here, so that source\n     *           selection algorithms can take the `type` into account.\n     *\n     * @property {string} [title]\n     *           Unused, except if this object is passed to the `MediaSession`\n     *           API.\n     *\n     * @property {Object[]} [textTracks]\n     *           An array of objects to be used to create text tracks, following\n     *           the {@link https://www.w3.org/TR/html50/embedded-content-0.html#the-track-element|native track element format}.\n     *           For ease of removal, these will be created as \"remote\" text\n     *           tracks and set to automatically clean up on source changes.\n     *\n     *           These objects may have properties like `src`, `kind`, `label`,\n     *           and `language`, see {@link Tech#createRemoteTextTrack}.\n     */\n\n    /**\n     * Populate the player using a {@link Player~MediaObject|MediaObject}.\n     *\n     * @param  {Player~MediaObject} media\n     *         A media object.\n     *\n     * @param  {Function} ready\n     *         A callback to be called when the player is ready.\n     */\n    ;\n\n    _proto.loadMedia = function loadMedia(media, ready) {\n      var _this23 = this;\n\n      if (!media || typeof media !== 'object') {\n        return;\n      }\n\n      this.reset(); // Clone the media object so it cannot be mutated from outside.\n\n      this.cache_.media = mergeOptions$3(media);\n      var _this$cache_$media = this.cache_.media,\n          artwork = _this$cache_$media.artwork,\n          poster = _this$cache_$media.poster,\n          src = _this$cache_$media.src,\n          textTracks = _this$cache_$media.textTracks; // If `artwork` is not given, create it using `poster`.\n\n      if (!artwork && poster) {\n        this.cache_.media.artwork = [{\n          src: poster,\n          type: getMimetype(poster)\n        }];\n      }\n\n      if (src) {\n        this.src(src);\n      }\n\n      if (poster) {\n        this.poster(poster);\n      }\n\n      if (Array.isArray(textTracks)) {\n        textTracks.forEach(function (tt) {\n          return _this23.addRemoteTextTrack(tt, false);\n        });\n      }\n\n      this.ready(ready);\n    }\n    /**\n     * Get a clone of the current {@link Player~MediaObject} for this player.\n     *\n     * If the `loadMedia` method has not been used, will attempt to return a\n     * {@link Player~MediaObject} based on the current state of the player.\n     *\n     * @return {Player~MediaObject}\n     */\n    ;\n\n    _proto.getMedia = function getMedia() {\n      if (!this.cache_.media) {\n        var poster = this.poster();\n        var src = this.currentSources();\n        var textTracks = Array.prototype.map.call(this.remoteTextTracks(), function (tt) {\n          return {\n            kind: tt.kind,\n            label: tt.label,\n            language: tt.language,\n            src: tt.src\n          };\n        });\n        var media = {\n          src: src,\n          textTracks: textTracks\n        };\n\n        if (poster) {\n          media.poster = poster;\n          media.artwork = [{\n            src: media.poster,\n            type: getMimetype(media.poster)\n          }];\n        }\n\n        return media;\n      }\n\n      return mergeOptions$3(this.cache_.media);\n    }\n    /**\n     * Gets tag settings\n     *\n     * @param {Element} tag\n     *        The player tag\n     *\n     * @return {Object}\n     *         An object containing all of the settings\n     *         for a player tag\n     */\n    ;\n\n    Player.getTagSettings = function getTagSettings(tag) {\n      var baseOptions = {\n        sources: [],\n        tracks: []\n      };\n      var tagOptions = getAttributes(tag);\n      var dataSetup = tagOptions['data-setup'];\n\n      if (hasClass(tag, 'vjs-fill')) {\n        tagOptions.fill = true;\n      }\n\n      if (hasClass(tag, 'vjs-fluid')) {\n        tagOptions.fluid = true;\n      } // Check if data-setup attr exists.\n\n\n      if (dataSetup !== null) {\n        // Parse options JSON\n        // If empty string, make it a parsable json object.\n        var _safeParseTuple = tuple(dataSetup || '{}'),\n            err = _safeParseTuple[0],\n            data = _safeParseTuple[1];\n\n        if (err) {\n          log$1.error(err);\n        }\n\n        assign(tagOptions, data);\n      }\n\n      assign(baseOptions, tagOptions); // Get tag children settings\n\n      if (tag.hasChildNodes()) {\n        var children = tag.childNodes;\n\n        for (var i = 0, j = children.length; i < j; i++) {\n          var child = children[i]; // Change case needed: http://ejohn.org/blog/nodename-case-sensitivity/\n\n          var childName = child.nodeName.toLowerCase();\n\n          if (childName === 'source') {\n            baseOptions.sources.push(getAttributes(child));\n          } else if (childName === 'track') {\n            baseOptions.tracks.push(getAttributes(child));\n          }\n        }\n      }\n\n      return baseOptions;\n    }\n    /**\n     * Determine whether or not flexbox is supported\n     *\n     * @return {boolean}\n     *         - true if flexbox is supported\n     *         - false if flexbox is not supported\n     */\n    ;\n\n    _proto.flexNotSupported_ = function flexNotSupported_() {\n      var elem = document.createElement('i'); // Note: We don't actually use flexBasis (or flexOrder), but it's one of the more\n      // common flex features that we can rely on when checking for flex support.\n\n      return !('flexBasis' in elem.style || 'webkitFlexBasis' in elem.style || 'mozFlexBasis' in elem.style || 'msFlexBasis' in elem.style || // IE10-specific (2012 flex spec), available for completeness\n      'msFlexOrder' in elem.style);\n    }\n    /**\n     * Set debug mode to enable/disable logs at info level.\n     *\n     * @param {boolean} enabled\n     * @fires Player#debugon\n     * @fires Player#debugoff\n     */\n    ;\n\n    _proto.debug = function debug(enabled) {\n      if (enabled === undefined) {\n        return this.debugEnabled_;\n      }\n\n      if (enabled) {\n        this.trigger('debugon');\n        this.previousLogLevel_ = this.log.level;\n        this.log.level('debug');\n        this.debugEnabled_ = true;\n      } else {\n        this.trigger('debugoff');\n        this.log.level(this.previousLogLevel_);\n        this.previousLogLevel_ = undefined;\n        this.debugEnabled_ = false;\n      }\n    }\n    /**\n     * Set or get current playback rates.\n     * Takes an array and updates the playback rates menu with the new items.\n     * Pass in an empty array to hide the menu.\n     * Values other than arrays are ignored.\n     *\n     * @fires Player#playbackrateschange\n     * @param {number[]} newRates\n     *                   The new rates that the playback rates menu should update to.\n     *                   An empty array will hide the menu\n     * @return {number[]} When used as a getter will return the current playback rates\n     */\n    ;\n\n    _proto.playbackRates = function playbackRates(newRates) {\n      if (newRates === undefined) {\n        return this.cache_.playbackRates;\n      } // ignore any value that isn't an array\n\n\n      if (!Array.isArray(newRates)) {\n        return;\n      } // ignore any arrays that don't only contain numbers\n\n\n      if (!newRates.every(function (rate) {\n        return typeof rate === 'number';\n      })) {\n        return;\n      }\n\n      this.cache_.playbackRates = newRates;\n      /**\n      * fires when the playback rates in a player are changed\n      *\n      * @event Player#playbackrateschange\n      * @type {EventTarget~Event}\n      */\n\n      this.trigger('playbackrateschange');\n    };\n\n    return Player;\n  }(Component$1);\n  /**\n   * Get the {@link VideoTrackList}\n   * @link https://html.spec.whatwg.org/multipage/embedded-content.html#videotracklist\n   *\n   * @return {VideoTrackList}\n   *         the current video track list\n   *\n   * @method Player.prototype.videoTracks\n   */\n\n  /**\n   * Get the {@link AudioTrackList}\n   * @link https://html.spec.whatwg.org/multipage/embedded-content.html#audiotracklist\n   *\n   * @return {AudioTrackList}\n   *         the current audio track list\n   *\n   * @method Player.prototype.audioTracks\n   */\n\n  /**\n   * Get the {@link TextTrackList}\n   *\n   * @link http://www.w3.org/html/wg/drafts/html/master/embedded-content-0.html#dom-media-texttracks\n   *\n   * @return {TextTrackList}\n   *         the current text track list\n   *\n   * @method Player.prototype.textTracks\n   */\n\n  /**\n   * Get the remote {@link TextTrackList}\n   *\n   * @return {TextTrackList}\n   *         The current remote text track list\n   *\n   * @method Player.prototype.remoteTextTracks\n   */\n\n  /**\n   * Get the remote {@link HtmlTrackElementList} tracks.\n   *\n   * @return {HtmlTrackElementList}\n   *         The current remote text track element list\n   *\n   * @method Player.prototype.remoteTextTrackEls\n   */\n\n\n  ALL.names.forEach(function (name) {\n    var props = ALL[name];\n\n    Player.prototype[props.getterName] = function () {\n      if (this.tech_) {\n        return this.tech_[props.getterName]();\n      } // if we have not yet loadTech_, we create {video,audio,text}Tracks_\n      // these will be passed to the tech during loading\n\n\n      this[props.privateName] = this[props.privateName] || new props.ListClass();\n      return this[props.privateName];\n    };\n  });\n  /**\n   * Get or set the `Player`'s crossorigin option. For the HTML5 player, this\n   * sets the `crossOrigin` property on the `<video>` tag to control the CORS\n   * behavior.\n   *\n   * @see [Video Element Attributes]{@link https://developer.mozilla.org/en-US/docs/Web/HTML/Element/video#attr-crossorigin}\n   *\n   * @param {string} [value]\n   *        The value to set the `Player`'s crossorigin to. If an argument is\n   *        given, must be one of `anonymous` or `use-credentials`.\n   *\n   * @return {string|undefined}\n   *         - The current crossorigin value of the `Player` when getting.\n   *         - undefined when setting\n   */\n\n  Player.prototype.crossorigin = Player.prototype.crossOrigin;\n  /**\n   * Global enumeration of players.\n   *\n   * The keys are the player IDs and the values are either the {@link Player}\n   * instance or `null` for disposed players.\n   *\n   * @type {Object}\n   */\n\n  Player.players = {};\n  var navigator = window.navigator;\n  /*\n   * Player instance options, surfaced using options\n   * options = Player.prototype.options_\n   * Make changes in options, not here.\n   *\n   * @type {Object}\n   * @private\n   */\n\n  Player.prototype.options_ = {\n    // Default order of fallback technology\n    techOrder: Tech.defaultTechOrder_,\n    html5: {},\n    // default inactivity timeout\n    inactivityTimeout: 2000,\n    // default playback rates\n    playbackRates: [],\n    // Add playback rate selection by adding rates\n    // 'playbackRates': [0.5, 1, 1.5, 2],\n    liveui: false,\n    // Included control sets\n    children: ['mediaLoader', 'posterImage', 'textTrackDisplay', 'loadingSpinner', 'bigPlayButton', 'liveTracker', 'controlBar', 'errorDisplay', 'textTrackSettings', 'resizeManager'],\n    language: navigator && (navigator.languages && navigator.languages[0] || navigator.userLanguage || navigator.language) || 'en',\n    // locales and their language translations\n    languages: {},\n    // Default message to show when a video cannot be played.\n    notSupportedMessage: 'No compatible source was found for this media.',\n    normalizeAutoplay: false,\n    fullscreen: {\n      options: {\n        navigationUI: 'hide'\n      }\n    },\n    breakpoints: {},\n    responsive: false,\n    audioOnlyMode: false,\n    audioPosterMode: false\n  };\n  [\n  /**\n   * Returns whether or not the player is in the \"ended\" state.\n   *\n   * @return {Boolean} True if the player is in the ended state, false if not.\n   * @method Player#ended\n   */\n  'ended',\n  /**\n   * Returns whether or not the player is in the \"seeking\" state.\n   *\n   * @return {Boolean} True if the player is in the seeking state, false if not.\n   * @method Player#seeking\n   */\n  'seeking',\n  /**\n   * Returns the TimeRanges of the media that are currently available\n   * for seeking to.\n   *\n   * @return {TimeRanges} the seekable intervals of the media timeline\n   * @method Player#seekable\n   */\n  'seekable',\n  /**\n   * Returns the current state of network activity for the element, from\n   * the codes in the list below.\n   * - NETWORK_EMPTY (numeric value 0)\n   *   The element has not yet been initialised. All attributes are in\n   *   their initial states.\n   * - NETWORK_IDLE (numeric value 1)\n   *   The element's resource selection algorithm is active and has\n   *   selected a resource, but it is not actually using the network at\n   *   this time.\n   * - NETWORK_LOADING (numeric value 2)\n   *   The user agent is actively trying to download data.\n   * - NETWORK_NO_SOURCE (numeric value 3)\n   *   The element's resource selection algorithm is active, but it has\n   *   not yet found a resource to use.\n   *\n   * @see https://html.spec.whatwg.org/multipage/embedded-content.html#network-states\n   * @return {number} the current network activity state\n   * @method Player#networkState\n   */\n  'networkState',\n  /**\n   * Returns a value that expresses the current state of the element\n   * with respect to rendering the current playback position, from the\n   * codes in the list below.\n   * - HAVE_NOTHING (numeric value 0)\n   *   No information regarding the media resource is available.\n   * - HAVE_METADATA (numeric value 1)\n   *   Enough of the resource has been obtained that the duration of the\n   *   resource is available.\n   * - HAVE_CURRENT_DATA (numeric value 2)\n   *   Data for the immediate current playback position is available.\n   * - HAVE_FUTURE_DATA (numeric value 3)\n   *   Data for the immediate current playback position is available, as\n   *   well as enough data for the user agent to advance the current\n   *   playback position in the direction of playback.\n   * - HAVE_ENOUGH_DATA (numeric value 4)\n   *   The user agent estimates that enough data is available for\n   *   playback to proceed uninterrupted.\n   *\n   * @see https://html.spec.whatwg.org/multipage/embedded-content.html#dom-media-readystate\n   * @return {number} the current playback rendering state\n   * @method Player#readyState\n   */\n  'readyState'].forEach(function (fn) {\n    Player.prototype[fn] = function () {\n      return this.techGet_(fn);\n    };\n  });\n  TECH_EVENTS_RETRIGGER.forEach(function (event) {\n    Player.prototype[\"handleTech\" + toTitleCase$1(event) + \"_\"] = function () {\n      return this.trigger(event);\n    };\n  });\n  /**\n   * Fired when the player has initial duration and dimension information\n   *\n   * @event Player#loadedmetadata\n   * @type {EventTarget~Event}\n   */\n\n  /**\n   * Fired when the player has downloaded data at the current playback position\n   *\n   * @event Player#loadeddata\n   * @type {EventTarget~Event}\n   */\n\n  /**\n   * Fired when the current playback position has changed *\n   * During playback this is fired every 15-250 milliseconds, depending on the\n   * playback technology in use.\n   *\n   * @event Player#timeupdate\n   * @type {EventTarget~Event}\n   */\n\n  /**\n   * Fired when the volume changes\n   *\n   * @event Player#volumechange\n   * @type {EventTarget~Event}\n   */\n\n  /**\n   * Reports whether or not a player has a plugin available.\n   *\n   * This does not report whether or not the plugin has ever been initialized\n   * on this player. For that, [usingPlugin]{@link Player#usingPlugin}.\n   *\n   * @method Player#hasPlugin\n   * @param  {string}  name\n   *         The name of a plugin.\n   *\n   * @return {boolean}\n   *         Whether or not this player has the requested plugin available.\n   */\n\n  /**\n   * Reports whether or not a player is using a plugin by name.\n   *\n   * For basic plugins, this only reports whether the plugin has _ever_ been\n   * initialized on this player.\n   *\n   * @method Player#usingPlugin\n   * @param  {string} name\n   *         The name of a plugin.\n   *\n   * @return {boolean}\n   *         Whether or not this player is using the requested plugin.\n   */\n\n  Component$1.registerComponent('Player', Player);\n\n  var setPrototypeOf = createCommonjsModule(function (module) {\n    function _setPrototypeOf(o, p) {\n      module.exports = _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) {\n        o.__proto__ = p;\n        return o;\n      };\n\n      return _setPrototypeOf(o, p);\n    }\n\n    module.exports = _setPrototypeOf;\n  });\n\n  function _isNativeReflectConstruct() {\n    if (typeof Reflect === \"undefined\" || !Reflect.construct) return false;\n    if (Reflect.construct.sham) return false;\n    if (typeof Proxy === \"function\") return true;\n\n    try {\n      Date.prototype.toString.call(Reflect.construct(Date, [], function () {}));\n      return true;\n    } catch (e) {\n      return false;\n    }\n  }\n\n  var isNativeReflectConstruct = _isNativeReflectConstruct;\n\n  var construct = createCommonjsModule(function (module) {\n    function _construct(Parent, args, Class) {\n      if (isNativeReflectConstruct()) {\n        module.exports = _construct = Reflect.construct;\n      } else {\n        module.exports = _construct = function _construct(Parent, args, Class) {\n          var a = [null];\n          a.push.apply(a, args);\n          var Constructor = Function.bind.apply(Parent, a);\n          var instance = new Constructor();\n          if (Class) setPrototypeOf(instance, Class.prototype);\n          return instance;\n        };\n      }\n\n      return _construct.apply(null, arguments);\n    }\n\n    module.exports = _construct;\n  });\n\n  /**\n   * The base plugin name.\n   *\n   * @private\n   * @constant\n   * @type {string}\n   */\n\n  var BASE_PLUGIN_NAME = 'plugin';\n  /**\n   * The key on which a player's active plugins cache is stored.\n   *\n   * @private\n   * @constant\n   * @type     {string}\n   */\n\n  var PLUGIN_CACHE_KEY = 'activePlugins_';\n  /**\n   * Stores registered plugins in a private space.\n   *\n   * @private\n   * @type    {Object}\n   */\n\n  var pluginStorage = {};\n  /**\n   * Reports whether or not a plugin has been registered.\n   *\n   * @private\n   * @param   {string} name\n   *          The name of a plugin.\n   *\n   * @return {boolean}\n   *          Whether or not the plugin has been registered.\n   */\n\n  var pluginExists = function pluginExists(name) {\n    return pluginStorage.hasOwnProperty(name);\n  };\n  /**\n   * Get a single registered plugin by name.\n   *\n   * @private\n   * @param   {string} name\n   *          The name of a plugin.\n   *\n   * @return {Function|undefined}\n   *          The plugin (or undefined).\n   */\n\n\n  var getPlugin = function getPlugin(name) {\n    return pluginExists(name) ? pluginStorage[name] : undefined;\n  };\n  /**\n   * Marks a plugin as \"active\" on a player.\n   *\n   * Also, ensures that the player has an object for tracking active plugins.\n   *\n   * @private\n   * @param   {Player} player\n   *          A Video.js player instance.\n   *\n   * @param   {string} name\n   *          The name of a plugin.\n   */\n\n\n  var markPluginAsActive = function markPluginAsActive(player, name) {\n    player[PLUGIN_CACHE_KEY] = player[PLUGIN_CACHE_KEY] || {};\n    player[PLUGIN_CACHE_KEY][name] = true;\n  };\n  /**\n   * Triggers a pair of plugin setup events.\n   *\n   * @private\n   * @param  {Player} player\n   *         A Video.js player instance.\n   *\n   * @param  {Plugin~PluginEventHash} hash\n   *         A plugin event hash.\n   *\n   * @param  {boolean} [before]\n   *         If true, prefixes the event name with \"before\". In other words,\n   *         use this to trigger \"beforepluginsetup\" instead of \"pluginsetup\".\n   */\n\n\n  var triggerSetupEvent = function triggerSetupEvent(player, hash, before) {\n    var eventName = (before ? 'before' : '') + 'pluginsetup';\n    player.trigger(eventName, hash);\n    player.trigger(eventName + ':' + hash.name, hash);\n  };\n  /**\n   * Takes a basic plugin function and returns a wrapper function which marks\n   * on the player that the plugin has been activated.\n   *\n   * @private\n   * @param   {string} name\n   *          The name of the plugin.\n   *\n   * @param   {Function} plugin\n   *          The basic plugin.\n   *\n   * @return {Function}\n   *          A wrapper function for the given plugin.\n   */\n\n\n  var createBasicPlugin = function createBasicPlugin(name, plugin) {\n    var basicPluginWrapper = function basicPluginWrapper() {\n      // We trigger the \"beforepluginsetup\" and \"pluginsetup\" events on the player\n      // regardless, but we want the hash to be consistent with the hash provided\n      // for advanced plugins.\n      //\n      // The only potentially counter-intuitive thing here is the `instance` in\n      // the \"pluginsetup\" event is the value returned by the `plugin` function.\n      triggerSetupEvent(this, {\n        name: name,\n        plugin: plugin,\n        instance: null\n      }, true);\n      var instance = plugin.apply(this, arguments);\n      markPluginAsActive(this, name);\n      triggerSetupEvent(this, {\n        name: name,\n        plugin: plugin,\n        instance: instance\n      });\n      return instance;\n    };\n\n    Object.keys(plugin).forEach(function (prop) {\n      basicPluginWrapper[prop] = plugin[prop];\n    });\n    return basicPluginWrapper;\n  };\n  /**\n   * Takes a plugin sub-class and returns a factory function for generating\n   * instances of it.\n   *\n   * This factory function will replace itself with an instance of the requested\n   * sub-class of Plugin.\n   *\n   * @private\n   * @param   {string} name\n   *          The name of the plugin.\n   *\n   * @param   {Plugin} PluginSubClass\n   *          The advanced plugin.\n   *\n   * @return {Function}\n   */\n\n\n  var createPluginFactory = function createPluginFactory(name, PluginSubClass) {\n    // Add a `name` property to the plugin prototype so that each plugin can\n    // refer to itself by name.\n    PluginSubClass.prototype.name = name;\n    return function () {\n      triggerSetupEvent(this, {\n        name: name,\n        plugin: PluginSubClass,\n        instance: null\n      }, true);\n\n      for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {\n        args[_key] = arguments[_key];\n      }\n\n      var instance = construct(PluginSubClass, [this].concat(args)); // The plugin is replaced by a function that returns the current instance.\n\n\n      this[name] = function () {\n        return instance;\n      };\n\n      triggerSetupEvent(this, instance.getEventHash());\n      return instance;\n    };\n  };\n  /**\n   * Parent class for all advanced plugins.\n   *\n   * @mixes   module:evented~EventedMixin\n   * @mixes   module:stateful~StatefulMixin\n   * @fires   Player#beforepluginsetup\n   * @fires   Player#beforepluginsetup:$name\n   * @fires   Player#pluginsetup\n   * @fires   Player#pluginsetup:$name\n   * @listens Player#dispose\n   * @throws  {Error}\n   *          If attempting to instantiate the base {@link Plugin} class\n   *          directly instead of via a sub-class.\n   */\n\n\n  var Plugin = /*#__PURE__*/function () {\n    /**\n     * Creates an instance of this class.\n     *\n     * Sub-classes should call `super` to ensure plugins are properly initialized.\n     *\n     * @param {Player} player\n     *        A Video.js player instance.\n     */\n    function Plugin(player) {\n      if (this.constructor === Plugin) {\n        throw new Error('Plugin must be sub-classed; not directly instantiated.');\n      }\n\n      this.player = player;\n\n      if (!this.log) {\n        this.log = this.player.log.createLogger(this.name);\n      } // Make this object evented, but remove the added `trigger` method so we\n      // use the prototype version instead.\n\n\n      evented(this);\n      delete this.trigger;\n      stateful(this, this.constructor.defaultState);\n      markPluginAsActive(player, this.name); // Auto-bind the dispose method so we can use it as a listener and unbind\n      // it later easily.\n\n      this.dispose = this.dispose.bind(this); // If the player is disposed, dispose the plugin.\n\n      player.on('dispose', this.dispose);\n    }\n    /**\n     * Get the version of the plugin that was set on <pluginName>.VERSION\n     */\n\n\n    var _proto = Plugin.prototype;\n\n    _proto.version = function version() {\n      return this.constructor.VERSION;\n    }\n    /**\n     * Each event triggered by plugins includes a hash of additional data with\n     * conventional properties.\n     *\n     * This returns that object or mutates an existing hash.\n     *\n     * @param   {Object} [hash={}]\n     *          An object to be used as event an event hash.\n     *\n     * @return {Plugin~PluginEventHash}\n     *          An event hash object with provided properties mixed-in.\n     */\n    ;\n\n    _proto.getEventHash = function getEventHash(hash) {\n      if (hash === void 0) {\n        hash = {};\n      }\n\n      hash.name = this.name;\n      hash.plugin = this.constructor;\n      hash.instance = this;\n      return hash;\n    }\n    /**\n     * Triggers an event on the plugin object and overrides\n     * {@link module:evented~EventedMixin.trigger|EventedMixin.trigger}.\n     *\n     * @param   {string|Object} event\n     *          An event type or an object with a type property.\n     *\n     * @param   {Object} [hash={}]\n     *          Additional data hash to merge with a\n     *          {@link Plugin~PluginEventHash|PluginEventHash}.\n     *\n     * @return {boolean}\n     *          Whether or not default was prevented.\n     */\n    ;\n\n    _proto.trigger = function trigger$1(event, hash) {\n      if (hash === void 0) {\n        hash = {};\n      }\n\n      return trigger(this.eventBusEl_, event, this.getEventHash(hash));\n    }\n    /**\n     * Handles \"statechanged\" events on the plugin. No-op by default, override by\n     * subclassing.\n     *\n     * @abstract\n     * @param    {Event} e\n     *           An event object provided by a \"statechanged\" event.\n     *\n     * @param    {Object} e.changes\n     *           An object describing changes that occurred with the \"statechanged\"\n     *           event.\n     */\n    ;\n\n    _proto.handleStateChanged = function handleStateChanged(e) {}\n    /**\n     * Disposes a plugin.\n     *\n     * Subclasses can override this if they want, but for the sake of safety,\n     * it's probably best to subscribe the \"dispose\" event.\n     *\n     * @fires Plugin#dispose\n     */\n    ;\n\n    _proto.dispose = function dispose() {\n      var name = this.name,\n          player = this.player;\n      /**\n       * Signals that a advanced plugin is about to be disposed.\n       *\n       * @event Plugin#dispose\n       * @type  {EventTarget~Event}\n       */\n\n      this.trigger('dispose');\n      this.off();\n      player.off('dispose', this.dispose); // Eliminate any possible sources of leaking memory by clearing up\n      // references between the player and the plugin instance and nulling out\n      // the plugin's state and replacing methods with a function that throws.\n\n      player[PLUGIN_CACHE_KEY][name] = false;\n      this.player = this.state = null; // Finally, replace the plugin name on the player with a new factory\n      // function, so that the plugin is ready to be set up again.\n\n      player[name] = createPluginFactory(name, pluginStorage[name]);\n    }\n    /**\n     * Determines if a plugin is a basic plugin (i.e. not a sub-class of `Plugin`).\n     *\n     * @param   {string|Function} plugin\n     *          If a string, matches the name of a plugin. If a function, will be\n     *          tested directly.\n     *\n     * @return {boolean}\n     *          Whether or not a plugin is a basic plugin.\n     */\n    ;\n\n    Plugin.isBasic = function isBasic(plugin) {\n      var p = typeof plugin === 'string' ? getPlugin(plugin) : plugin;\n      return typeof p === 'function' && !Plugin.prototype.isPrototypeOf(p.prototype);\n    }\n    /**\n     * Register a Video.js plugin.\n     *\n     * @param   {string} name\n     *          The name of the plugin to be registered. Must be a string and\n     *          must not match an existing plugin or a method on the `Player`\n     *          prototype.\n     *\n     * @param   {Function} plugin\n     *          A sub-class of `Plugin` or a function for basic plugins.\n     *\n     * @return {Function}\n     *          For advanced plugins, a factory function for that plugin. For\n     *          basic plugins, a wrapper function that initializes the plugin.\n     */\n    ;\n\n    Plugin.registerPlugin = function registerPlugin(name, plugin) {\n      if (typeof name !== 'string') {\n        throw new Error(\"Illegal plugin name, \\\"\" + name + \"\\\", must be a string, was \" + typeof name + \".\");\n      }\n\n      if (pluginExists(name)) {\n        log$1.warn(\"A plugin named \\\"\" + name + \"\\\" already exists. You may want to avoid re-registering plugins!\");\n      } else if (Player.prototype.hasOwnProperty(name)) {\n        throw new Error(\"Illegal plugin name, \\\"\" + name + \"\\\", cannot share a name with an existing player method!\");\n      }\n\n      if (typeof plugin !== 'function') {\n        throw new Error(\"Illegal plugin for \\\"\" + name + \"\\\", must be a function, was \" + typeof plugin + \".\");\n      }\n\n      pluginStorage[name] = plugin; // Add a player prototype method for all sub-classed plugins (but not for\n      // the base Plugin class).\n\n      if (name !== BASE_PLUGIN_NAME) {\n        if (Plugin.isBasic(plugin)) {\n          Player.prototype[name] = createBasicPlugin(name, plugin);\n        } else {\n          Player.prototype[name] = createPluginFactory(name, plugin);\n        }\n      }\n\n      return plugin;\n    }\n    /**\n     * De-register a Video.js plugin.\n     *\n     * @param  {string} name\n     *         The name of the plugin to be de-registered. Must be a string that\n     *         matches an existing plugin.\n     *\n     * @throws {Error}\n     *         If an attempt is made to de-register the base plugin.\n     */\n    ;\n\n    Plugin.deregisterPlugin = function deregisterPlugin(name) {\n      if (name === BASE_PLUGIN_NAME) {\n        throw new Error('Cannot de-register base plugin.');\n      }\n\n      if (pluginExists(name)) {\n        delete pluginStorage[name];\n        delete Player.prototype[name];\n      }\n    }\n    /**\n     * Gets an object containing multiple Video.js plugins.\n     *\n     * @param   {Array} [names]\n     *          If provided, should be an array of plugin names. Defaults to _all_\n     *          plugin names.\n     *\n     * @return {Object|undefined}\n     *          An object containing plugin(s) associated with their name(s) or\n     *          `undefined` if no matching plugins exist).\n     */\n    ;\n\n    Plugin.getPlugins = function getPlugins(names) {\n      if (names === void 0) {\n        names = Object.keys(pluginStorage);\n      }\n\n      var result;\n      names.forEach(function (name) {\n        var plugin = getPlugin(name);\n\n        if (plugin) {\n          result = result || {};\n          result[name] = plugin;\n        }\n      });\n      return result;\n    }\n    /**\n     * Gets a plugin's version, if available\n     *\n     * @param   {string} name\n     *          The name of a plugin.\n     *\n     * @return {string}\n     *          The plugin's version or an empty string.\n     */\n    ;\n\n    Plugin.getPluginVersion = function getPluginVersion(name) {\n      var plugin = getPlugin(name);\n      return plugin && plugin.VERSION || '';\n    };\n\n    return Plugin;\n  }();\n  /**\n   * Gets a plugin by name if it exists.\n   *\n   * @static\n   * @method   getPlugin\n   * @memberOf Plugin\n   * @param    {string} name\n   *           The name of a plugin.\n   *\n   * @returns  {Function|undefined}\n   *           The plugin (or `undefined`).\n   */\n\n\n  Plugin.getPlugin = getPlugin;\n  /**\n   * The name of the base plugin class as it is registered.\n   *\n   * @type {string}\n   */\n\n  Plugin.BASE_PLUGIN_NAME = BASE_PLUGIN_NAME;\n  Plugin.registerPlugin(BASE_PLUGIN_NAME, Plugin);\n  /**\n   * Documented in player.js\n   *\n   * @ignore\n   */\n\n  Player.prototype.usingPlugin = function (name) {\n    return !!this[PLUGIN_CACHE_KEY] && this[PLUGIN_CACHE_KEY][name] === true;\n  };\n  /**\n   * Documented in player.js\n   *\n   * @ignore\n   */\n\n\n  Player.prototype.hasPlugin = function (name) {\n    return !!pluginExists(name);\n  };\n  /**\n   * Signals that a plugin is about to be set up on a player.\n   *\n   * @event    Player#beforepluginsetup\n   * @type     {Plugin~PluginEventHash}\n   */\n\n  /**\n   * Signals that a plugin is about to be set up on a player - by name. The name\n   * is the name of the plugin.\n   *\n   * @event    Player#beforepluginsetup:$name\n   * @type     {Plugin~PluginEventHash}\n   */\n\n  /**\n   * Signals that a plugin has just been set up on a player.\n   *\n   * @event    Player#pluginsetup\n   * @type     {Plugin~PluginEventHash}\n   */\n\n  /**\n   * Signals that a plugin has just been set up on a player - by name. The name\n   * is the name of the plugin.\n   *\n   * @event    Player#pluginsetup:$name\n   * @type     {Plugin~PluginEventHash}\n   */\n\n  /**\n   * @typedef  {Object} Plugin~PluginEventHash\n   *\n   * @property {string} instance\n   *           For basic plugins, the return value of the plugin function. For\n   *           advanced plugins, the plugin instance on which the event is fired.\n   *\n   * @property {string} name\n   *           The name of the plugin.\n   *\n   * @property {string} plugin\n   *           For basic plugins, the plugin function. For advanced plugins, the\n   *           plugin class/constructor.\n   */\n\n  function _inherits(subClass, superClass) {\n    if (typeof superClass !== \"function\" && superClass !== null) {\n      throw new TypeError(\"Super expression must either be null or a function\");\n    }\n\n    subClass.prototype = Object.create(superClass && superClass.prototype, {\n      constructor: {\n        value: subClass,\n        writable: true,\n        configurable: true\n      }\n    });\n    if (superClass) setPrototypeOf(subClass, superClass);\n  }\n\n  var inherits = _inherits;\n\n  /**\n   * @file extend.js\n   * @module extend\n   */\n  /**\n   * Used to subclass an existing class by emulating ES subclassing using the\n   * `extends` keyword.\n   *\n   * @function\n   * @example\n   * var MyComponent = videojs.extend(videojs.getComponent('Component'), {\n   *   myCustomMethod: function() {\n   *     // Do things in my method.\n   *   }\n   * });\n   *\n   * @param    {Function} superClass\n   *           The class to inherit from\n   *\n   * @param    {Object}   [subClassMethods={}]\n   *           Methods of the new class\n   *\n   * @return   {Function}\n   *           The new class with subClassMethods that inherited superClass.\n   */\n\n  var extend = function extend(superClass, subClassMethods) {\n    if (subClassMethods === void 0) {\n      subClassMethods = {};\n    }\n\n    var subClass = function subClass() {\n      superClass.apply(this, arguments);\n    };\n\n    var methods = {};\n\n    if (typeof subClassMethods === 'object') {\n      if (subClassMethods.constructor !== Object.prototype.constructor) {\n        subClass = subClassMethods.constructor;\n      }\n\n      methods = subClassMethods;\n    } else if (typeof subClassMethods === 'function') {\n      subClass = subClassMethods;\n    }\n\n    inherits(subClass, superClass); // this is needed for backward-compatibility and node compatibility.\n\n\n    if (superClass) {\n      subClass.super_ = superClass;\n    } // Extend subObj's prototype with functions and other properties from props\n\n\n    for (var name in methods) {\n      if (methods.hasOwnProperty(name)) {\n        subClass.prototype[name] = methods[name];\n      }\n    }\n\n    return subClass;\n  };\n\n  /**\n   * @file video.js\n   * @module videojs\n   */\n  /**\n   * Normalize an `id` value by trimming off a leading `#`\n   *\n   * @private\n   * @param   {string} id\n   *          A string, maybe with a leading `#`.\n   *\n   * @return {string}\n   *          The string, without any leading `#`.\n   */\n\n  var normalizeId = function normalizeId(id) {\n    return id.indexOf('#') === 0 ? id.slice(1) : id;\n  };\n  /**\n   * The `videojs()` function doubles as the main function for users to create a\n   * {@link Player} instance as well as the main library namespace.\n   *\n   * It can also be used as a getter for a pre-existing {@link Player} instance.\n   * However, we _strongly_ recommend using `videojs.getPlayer()` for this\n   * purpose because it avoids any potential for unintended initialization.\n   *\n   * Due to [limitations](https://github.com/jsdoc3/jsdoc/issues/955#issuecomment-313829149)\n   * of our JSDoc template, we cannot properly document this as both a function\n   * and a namespace, so its function signature is documented here.\n   *\n   * #### Arguments\n   * ##### id\n   * string|Element, **required**\n   *\n   * Video element or video element ID.\n   *\n   * ##### options\n   * Object, optional\n   *\n   * Options object for providing settings.\n   * See: [Options Guide](https://docs.videojs.com/tutorial-options.html).\n   *\n   * ##### ready\n   * {@link Component~ReadyCallback}, optional\n   *\n   * A function to be called when the {@link Player} and {@link Tech} are ready.\n   *\n   * #### Return Value\n   *\n   * The `videojs()` function returns a {@link Player} instance.\n   *\n   * @namespace\n   *\n   * @borrows AudioTrack as AudioTrack\n   * @borrows Component.getComponent as getComponent\n   * @borrows module:computed-style~computedStyle as computedStyle\n   * @borrows module:events.on as on\n   * @borrows module:events.one as one\n   * @borrows module:events.off as off\n   * @borrows module:events.trigger as trigger\n   * @borrows EventTarget as EventTarget\n   * @borrows module:extend~extend as extend\n   * @borrows module:fn.bind as bind\n   * @borrows module:format-time.formatTime as formatTime\n   * @borrows module:format-time.resetFormatTime as resetFormatTime\n   * @borrows module:format-time.setFormatTime as setFormatTime\n   * @borrows module:merge-options.mergeOptions as mergeOptions\n   * @borrows module:middleware.use as use\n   * @borrows Player.players as players\n   * @borrows Plugin.registerPlugin as registerPlugin\n   * @borrows Plugin.deregisterPlugin as deregisterPlugin\n   * @borrows Plugin.getPlugins as getPlugins\n   * @borrows Plugin.getPlugin as getPlugin\n   * @borrows Plugin.getPluginVersion as getPluginVersion\n   * @borrows Tech.getTech as getTech\n   * @borrows Tech.registerTech as registerTech\n   * @borrows TextTrack as TextTrack\n   * @borrows module:time-ranges.createTimeRanges as createTimeRange\n   * @borrows module:time-ranges.createTimeRanges as createTimeRanges\n   * @borrows module:url.isCrossOrigin as isCrossOrigin\n   * @borrows module:url.parseUrl as parseUrl\n   * @borrows VideoTrack as VideoTrack\n   *\n   * @param  {string|Element} id\n   *         Video element or video element ID.\n   *\n   * @param  {Object} [options]\n   *         Options object for providing settings.\n   *         See: [Options Guide](https://docs.videojs.com/tutorial-options.html).\n   *\n   * @param  {Component~ReadyCallback} [ready]\n   *         A function to be called when the {@link Player} and {@link Tech} are\n   *         ready.\n   *\n   * @return {Player}\n   *         The `videojs()` function returns a {@link Player|Player} instance.\n   */\n\n\n  function videojs(id, options, ready) {\n    var player = videojs.getPlayer(id);\n\n    if (player) {\n      if (options) {\n        log$1.warn(\"Player \\\"\" + id + \"\\\" is already initialised. Options will not be applied.\");\n      }\n\n      if (ready) {\n        player.ready(ready);\n      }\n\n      return player;\n    }\n\n    var el = typeof id === 'string' ? $('#' + normalizeId(id)) : id;\n\n    if (!isEl(el)) {\n      throw new TypeError('The element or ID supplied is not valid. (videojs)');\n    } // document.body.contains(el) will only check if el is contained within that one document.\n    // This causes problems for elements in iframes.\n    // Instead, use the element's ownerDocument instead of the global document.\n    // This will make sure that the element is indeed in the dom of that document.\n    // Additionally, check that the document in question has a default view.\n    // If the document is no longer attached to the dom, the defaultView of the document will be null.\n\n\n    if (!el.ownerDocument.defaultView || !el.ownerDocument.body.contains(el)) {\n      log$1.warn('The element supplied is not included in the DOM');\n    }\n\n    options = options || {}; // Store a copy of the el before modification, if it is to be restored in destroy()\n    // If div ingest, store the parent div\n\n    if (options.restoreEl === true) {\n      options.restoreEl = (el.parentNode && el.parentNode.hasAttribute('data-vjs-player') ? el.parentNode : el).cloneNode(true);\n    }\n\n    hooks('beforesetup').forEach(function (hookFunction) {\n      var opts = hookFunction(el, mergeOptions$3(options));\n\n      if (!isObject$1(opts) || Array.isArray(opts)) {\n        log$1.error('please return an object in beforesetup hooks');\n        return;\n      }\n\n      options = mergeOptions$3(options, opts);\n    }); // We get the current \"Player\" component here in case an integration has\n    // replaced it with a custom player.\n\n    var PlayerComponent = Component$1.getComponent('Player');\n    player = new PlayerComponent(el, options, ready);\n    hooks('setup').forEach(function (hookFunction) {\n      return hookFunction(player);\n    });\n    return player;\n  }\n\n  videojs.hooks_ = hooks_;\n  videojs.hooks = hooks;\n  videojs.hook = hook;\n  videojs.hookOnce = hookOnce;\n  videojs.removeHook = removeHook; // Add default styles\n\n  if (window.VIDEOJS_NO_DYNAMIC_STYLE !== true && isReal()) {\n    var style = $('.vjs-styles-defaults');\n\n    if (!style) {\n      style = createStyleElement('vjs-styles-defaults');\n      var head = $('head');\n\n      if (head) {\n        head.insertBefore(style, head.firstChild);\n      }\n\n      setTextContent(style, \"\\n      .video-js {\\n        width: 300px;\\n        height: 150px;\\n      }\\n\\n      .vjs-fluid:not(.vjs-audio-only-mode) {\\n        padding-top: 56.25%\\n      }\\n    \");\n    }\n  } // Run Auto-load players\n  // You have to wait at least once in case this script is loaded after your\n  // video in the DOM (weird behavior only with minified version)\n\n\n  autoSetupTimeout(1, videojs);\n  /**\n   * Current Video.js version. Follows [semantic versioning](https://semver.org/).\n   *\n   * @type {string}\n   */\n\n  videojs.VERSION = version$5;\n  /**\n   * The global options object. These are the settings that take effect\n   * if no overrides are specified when the player is created.\n   *\n   * @type {Object}\n   */\n\n  videojs.options = Player.prototype.options_;\n  /**\n   * Get an object with the currently created players, keyed by player ID\n   *\n   * @return {Object}\n   *         The created players\n   */\n\n  videojs.getPlayers = function () {\n    return Player.players;\n  };\n  /**\n   * Get a single player based on an ID or DOM element.\n   *\n   * This is useful if you want to check if an element or ID has an associated\n   * Video.js player, but not create one if it doesn't.\n   *\n   * @param   {string|Element} id\n   *          An HTML element - `<video>`, `<audio>`, or `<video-js>` -\n   *          or a string matching the `id` of such an element.\n   *\n   * @return {Player|undefined}\n   *          A player instance or `undefined` if there is no player instance\n   *          matching the argument.\n   */\n\n\n  videojs.getPlayer = function (id) {\n    var players = Player.players;\n    var tag;\n\n    if (typeof id === 'string') {\n      var nId = normalizeId(id);\n      var player = players[nId];\n\n      if (player) {\n        return player;\n      }\n\n      tag = $('#' + nId);\n    } else {\n      tag = id;\n    }\n\n    if (isEl(tag)) {\n      var _tag = tag,\n          _player = _tag.player,\n          playerId = _tag.playerId; // Element may have a `player` property referring to an already created\n      // player instance. If so, return that.\n\n      if (_player || players[playerId]) {\n        return _player || players[playerId];\n      }\n    }\n  };\n  /**\n   * Returns an array of all current players.\n   *\n   * @return {Array}\n   *         An array of all players. The array will be in the order that\n   *         `Object.keys` provides, which could potentially vary between\n   *         JavaScript engines.\n   *\n   */\n\n\n  videojs.getAllPlayers = function () {\n    return (// Disposed players leave a key with a `null` value, so we need to make sure\n      // we filter those out.\n      Object.keys(Player.players).map(function (k) {\n        return Player.players[k];\n      }).filter(Boolean)\n    );\n  };\n\n  videojs.players = Player.players;\n  videojs.getComponent = Component$1.getComponent;\n  /**\n   * Register a component so it can referred to by name. Used when adding to other\n   * components, either through addChild `component.addChild('myComponent')` or through\n   * default children options  `{ children: ['myComponent'] }`.\n   *\n   * > NOTE: You could also just initialize the component before adding.\n   * `component.addChild(new MyComponent());`\n   *\n   * @param {string} name\n   *        The class name of the component\n   *\n   * @param {Component} comp\n   *        The component class\n   *\n   * @return {Component}\n   *         The newly registered component\n   */\n\n  videojs.registerComponent = function (name, comp) {\n    if (Tech.isTech(comp)) {\n      log$1.warn(\"The \" + name + \" tech was registered as a component. It should instead be registered using videojs.registerTech(name, tech)\");\n    }\n\n    Component$1.registerComponent.call(Component$1, name, comp);\n  };\n\n  videojs.getTech = Tech.getTech;\n  videojs.registerTech = Tech.registerTech;\n  videojs.use = use;\n  /**\n   * An object that can be returned by a middleware to signify\n   * that the middleware is being terminated.\n   *\n   * @type {object}\n   * @property {object} middleware.TERMINATOR\n   */\n\n  Object.defineProperty(videojs, 'middleware', {\n    value: {},\n    writeable: false,\n    enumerable: true\n  });\n  Object.defineProperty(videojs.middleware, 'TERMINATOR', {\n    value: TERMINATOR,\n    writeable: false,\n    enumerable: true\n  });\n  /**\n   * A reference to the {@link module:browser|browser utility module} as an object.\n   *\n   * @type {Object}\n   * @see  {@link module:browser|browser}\n   */\n\n  videojs.browser = browser;\n  /**\n   * Use {@link module:browser.TOUCH_ENABLED|browser.TOUCH_ENABLED} instead; only\n   * included for backward-compatibility with 4.x.\n   *\n   * @deprecated Since version 5.0, use {@link module:browser.TOUCH_ENABLED|browser.TOUCH_ENABLED instead.\n   * @type {boolean}\n   */\n\n  videojs.TOUCH_ENABLED = TOUCH_ENABLED;\n  videojs.extend = extend;\n  videojs.mergeOptions = mergeOptions$3;\n  videojs.bind = bind;\n  videojs.registerPlugin = Plugin.registerPlugin;\n  videojs.deregisterPlugin = Plugin.deregisterPlugin;\n  /**\n   * Deprecated method to register a plugin with Video.js\n   *\n   * @deprecated videojs.plugin() is deprecated; use videojs.registerPlugin() instead\n   *\n   * @param {string} name\n   *        The plugin name\n   *\n   * @param {Plugin|Function} plugin\n   *         The plugin sub-class or function\n   */\n\n  videojs.plugin = function (name, plugin) {\n    log$1.warn('videojs.plugin() is deprecated; use videojs.registerPlugin() instead');\n    return Plugin.registerPlugin(name, plugin);\n  };\n\n  videojs.getPlugins = Plugin.getPlugins;\n  videojs.getPlugin = Plugin.getPlugin;\n  videojs.getPluginVersion = Plugin.getPluginVersion;\n  /**\n   * Adding languages so that they're available to all players.\n   * Example: `videojs.addLanguage('es', { 'Hello': 'Hola' });`\n   *\n   * @param {string} code\n   *        The language code or dictionary property\n   *\n   * @param {Object} data\n   *        The data values to be translated\n   *\n   * @return {Object}\n   *         The resulting language dictionary object\n   */\n\n  videojs.addLanguage = function (code, data) {\n    var _mergeOptions;\n\n    code = ('' + code).toLowerCase();\n    videojs.options.languages = mergeOptions$3(videojs.options.languages, (_mergeOptions = {}, _mergeOptions[code] = data, _mergeOptions));\n    return videojs.options.languages[code];\n  };\n  /**\n   * A reference to the {@link module:log|log utility module} as an object.\n   *\n   * @type {Function}\n   * @see  {@link module:log|log}\n   */\n\n\n  videojs.log = log$1;\n  videojs.createLogger = createLogger;\n  videojs.createTimeRange = videojs.createTimeRanges = createTimeRanges;\n  videojs.formatTime = formatTime;\n  videojs.setFormatTime = setFormatTime;\n  videojs.resetFormatTime = resetFormatTime;\n  videojs.parseUrl = parseUrl;\n  videojs.isCrossOrigin = isCrossOrigin;\n  videojs.EventTarget = EventTarget$2;\n  videojs.on = on;\n  videojs.one = one;\n  videojs.off = off;\n  videojs.trigger = trigger;\n  /**\n   * A cross-browser XMLHttpRequest wrapper.\n   *\n   * @function\n   * @param    {Object} options\n   *           Settings for the request.\n   *\n   * @return   {XMLHttpRequest|XDomainRequest}\n   *           The request object.\n   *\n   * @see      https://github.com/Raynos/xhr\n   */\n\n  videojs.xhr = lib;\n  videojs.TextTrack = TextTrack;\n  videojs.AudioTrack = AudioTrack;\n  videojs.VideoTrack = VideoTrack;\n  ['isEl', 'isTextNode', 'createEl', 'hasClass', 'addClass', 'removeClass', 'toggleClass', 'setAttributes', 'getAttributes', 'emptyEl', 'appendContent', 'insertContent'].forEach(function (k) {\n    videojs[k] = function () {\n      log$1.warn(\"videojs.\" + k + \"() is deprecated; use videojs.dom.\" + k + \"() instead\");\n      return Dom[k].apply(null, arguments);\n    };\n  });\n  videojs.computedStyle = computedStyle;\n  /**\n   * A reference to the {@link module:dom|DOM utility module} as an object.\n   *\n   * @type {Object}\n   * @see  {@link module:dom|dom}\n   */\n\n  videojs.dom = Dom;\n  /**\n   * A reference to the {@link module:url|URL utility module} as an object.\n   *\n   * @type {Object}\n   * @see  {@link module:url|url}\n   */\n\n  videojs.url = Url;\n  videojs.defineLazyProperty = defineLazyProperty; // Adding less ambiguous text for fullscreen button.\n  // In a major update this could become the default text and key.\n\n  videojs.addLanguage('en', {\n    'Non-Fullscreen': 'Exit Fullscreen'\n  });\n\n  var urlToolkit = createCommonjsModule(function (module, exports) {\n    // see https://tools.ietf.org/html/rfc1808\n    (function (root) {\n      var URL_REGEX = /^((?:[a-zA-Z0-9+\\-.]+:)?)(\\/\\/[^\\/?#]*)?((?:[^\\/?#]*\\/)*[^;?#]*)?(;[^?#]*)?(\\?[^#]*)?(#[^]*)?$/;\n      var FIRST_SEGMENT_REGEX = /^([^\\/?#]*)([^]*)$/;\n      var SLASH_DOT_REGEX = /(?:\\/|^)\\.(?=\\/)/g;\n      var SLASH_DOT_DOT_REGEX = /(?:\\/|^)\\.\\.\\/(?!\\.\\.\\/)[^\\/]*(?=\\/)/g;\n      var URLToolkit = {\n        // If opts.alwaysNormalize is true then the path will always be normalized even when it starts with / or //\n        // E.g\n        // With opts.alwaysNormalize = false (default, spec compliant)\n        // http://a.com/b/cd + /e/f/../g => http://a.com/e/f/../g\n        // With opts.alwaysNormalize = true (not spec compliant)\n        // http://a.com/b/cd + /e/f/../g => http://a.com/e/g\n        buildAbsoluteURL: function buildAbsoluteURL(baseURL, relativeURL, opts) {\n          opts = opts || {}; // remove any remaining space and CRLF\n\n          baseURL = baseURL.trim();\n          relativeURL = relativeURL.trim();\n\n          if (!relativeURL) {\n            // 2a) If the embedded URL is entirely empty, it inherits the\n            // entire base URL (i.e., is set equal to the base URL)\n            // and we are done.\n            if (!opts.alwaysNormalize) {\n              return baseURL;\n            }\n\n            var basePartsForNormalise = URLToolkit.parseURL(baseURL);\n\n            if (!basePartsForNormalise) {\n              throw new Error('Error trying to parse base URL.');\n            }\n\n            basePartsForNormalise.path = URLToolkit.normalizePath(basePartsForNormalise.path);\n            return URLToolkit.buildURLFromParts(basePartsForNormalise);\n          }\n\n          var relativeParts = URLToolkit.parseURL(relativeURL);\n\n          if (!relativeParts) {\n            throw new Error('Error trying to parse relative URL.');\n          }\n\n          if (relativeParts.scheme) {\n            // 2b) If the embedded URL starts with a scheme name, it is\n            // interpreted as an absolute URL and we are done.\n            if (!opts.alwaysNormalize) {\n              return relativeURL;\n            }\n\n            relativeParts.path = URLToolkit.normalizePath(relativeParts.path);\n            return URLToolkit.buildURLFromParts(relativeParts);\n          }\n\n          var baseParts = URLToolkit.parseURL(baseURL);\n\n          if (!baseParts) {\n            throw new Error('Error trying to parse base URL.');\n          }\n\n          if (!baseParts.netLoc && baseParts.path && baseParts.path[0] !== '/') {\n            // If netLoc missing and path doesn't start with '/', assume everthing before the first '/' is the netLoc\n            // This causes 'example.com/a' to be handled as '//example.com/a' instead of '/example.com/a'\n            var pathParts = FIRST_SEGMENT_REGEX.exec(baseParts.path);\n            baseParts.netLoc = pathParts[1];\n            baseParts.path = pathParts[2];\n          }\n\n          if (baseParts.netLoc && !baseParts.path) {\n            baseParts.path = '/';\n          }\n\n          var builtParts = {\n            // 2c) Otherwise, the embedded URL inherits the scheme of\n            // the base URL.\n            scheme: baseParts.scheme,\n            netLoc: relativeParts.netLoc,\n            path: null,\n            params: relativeParts.params,\n            query: relativeParts.query,\n            fragment: relativeParts.fragment\n          };\n\n          if (!relativeParts.netLoc) {\n            // 3) If the embedded URL's <net_loc> is non-empty, we skip to\n            // Step 7.  Otherwise, the embedded URL inherits the <net_loc>\n            // (if any) of the base URL.\n            builtParts.netLoc = baseParts.netLoc; // 4) If the embedded URL path is preceded by a slash \"/\", the\n            // path is not relative and we skip to Step 7.\n\n            if (relativeParts.path[0] !== '/') {\n              if (!relativeParts.path) {\n                // 5) If the embedded URL path is empty (and not preceded by a\n                // slash), then the embedded URL inherits the base URL path\n                builtParts.path = baseParts.path; // 5a) if the embedded URL's <params> is non-empty, we skip to\n                // step 7; otherwise, it inherits the <params> of the base\n                // URL (if any) and\n\n                if (!relativeParts.params) {\n                  builtParts.params = baseParts.params; // 5b) if the embedded URL's <query> is non-empty, we skip to\n                  // step 7; otherwise, it inherits the <query> of the base\n                  // URL (if any) and we skip to step 7.\n\n                  if (!relativeParts.query) {\n                    builtParts.query = baseParts.query;\n                  }\n                }\n              } else {\n                // 6) The last segment of the base URL's path (anything\n                // following the rightmost slash \"/\", or the entire path if no\n                // slash is present) is removed and the embedded URL's path is\n                // appended in its place.\n                var baseURLPath = baseParts.path;\n                var newPath = baseURLPath.substring(0, baseURLPath.lastIndexOf('/') + 1) + relativeParts.path;\n                builtParts.path = URLToolkit.normalizePath(newPath);\n              }\n            }\n          }\n\n          if (builtParts.path === null) {\n            builtParts.path = opts.alwaysNormalize ? URLToolkit.normalizePath(relativeParts.path) : relativeParts.path;\n          }\n\n          return URLToolkit.buildURLFromParts(builtParts);\n        },\n        parseURL: function parseURL(url) {\n          var parts = URL_REGEX.exec(url);\n\n          if (!parts) {\n            return null;\n          }\n\n          return {\n            scheme: parts[1] || '',\n            netLoc: parts[2] || '',\n            path: parts[3] || '',\n            params: parts[4] || '',\n            query: parts[5] || '',\n            fragment: parts[6] || ''\n          };\n        },\n        normalizePath: function normalizePath(path) {\n          // The following operations are\n          // then applied, in order, to the new path:\n          // 6a) All occurrences of \"./\", where \".\" is a complete path\n          // segment, are removed.\n          // 6b) If the path ends with \".\" as a complete path segment,\n          // that \".\" is removed.\n          path = path.split('').reverse().join('').replace(SLASH_DOT_REGEX, ''); // 6c) All occurrences of \"<segment>/../\", where <segment> is a\n          // complete path segment not equal to \"..\", are removed.\n          // Removal of these path segments is performed iteratively,\n          // removing the leftmost matching pattern on each iteration,\n          // until no matching pattern remains.\n          // 6d) If the path ends with \"<segment>/..\", where <segment> is a\n          // complete path segment not equal to \"..\", that\n          // \"<segment>/..\" is removed.\n\n          while (path.length !== (path = path.replace(SLASH_DOT_DOT_REGEX, '')).length) {}\n\n          return path.split('').reverse().join('');\n        },\n        buildURLFromParts: function buildURLFromParts(parts) {\n          return parts.scheme + parts.netLoc + parts.path + parts.params + parts.query + parts.fragment;\n        }\n      };\n      module.exports = URLToolkit;\n    })();\n  });\n\n  var DEFAULT_LOCATION$1 = 'http://example.com';\n\n  var resolveUrl$2 = function resolveUrl(baseUrl, relativeUrl) {\n    // return early if we don't need to resolve\n    if (/^[a-z]+:/i.test(relativeUrl)) {\n      return relativeUrl;\n    } // if baseUrl is a data URI, ignore it and resolve everything relative to window.location\n\n\n    if (/^data:/.test(baseUrl)) {\n      baseUrl = window.location && window.location.href || '';\n    } // IE11 supports URL but not the URL constructor\n    // feature detect the behavior we want\n\n\n    var nativeURL = typeof window.URL === 'function';\n    var protocolLess = /^\\/\\//.test(baseUrl); // remove location if window.location isn't available (i.e. we're in node)\n    // and if baseUrl isn't an absolute url\n\n    var removeLocation = !window.location && !/\\/\\//i.test(baseUrl); // if the base URL is relative then combine with the current location\n\n    if (nativeURL) {\n      baseUrl = new window.URL(baseUrl, window.location || DEFAULT_LOCATION$1);\n    } else if (!/\\/\\//i.test(baseUrl)) {\n      baseUrl = urlToolkit.buildAbsoluteURL(window.location && window.location.href || '', baseUrl);\n    }\n\n    if (nativeURL) {\n      var newUrl = new URL(relativeUrl, baseUrl); // if we're a protocol-less url, remove the protocol\n      // and if we're location-less, remove the location\n      // otherwise, return the url unmodified\n\n      if (removeLocation) {\n        return newUrl.href.slice(DEFAULT_LOCATION$1.length);\n      } else if (protocolLess) {\n        return newUrl.href.slice(newUrl.protocol.length);\n      }\n\n      return newUrl.href;\n    }\n\n    return urlToolkit.buildAbsoluteURL(baseUrl, relativeUrl);\n  };\n\n  /**\n   * @file stream.js\n   */\n\n  /**\n   * A lightweight readable stream implemention that handles event dispatching.\n   *\n   * @class Stream\n   */\n  var Stream = /*#__PURE__*/function () {\n    function Stream() {\n      this.listeners = {};\n    }\n    /**\n     * Add a listener for a specified event type.\n     *\n     * @param {string} type the event name\n     * @param {Function} listener the callback to be invoked when an event of\n     * the specified type occurs\n     */\n\n\n    var _proto = Stream.prototype;\n\n    _proto.on = function on(type, listener) {\n      if (!this.listeners[type]) {\n        this.listeners[type] = [];\n      }\n\n      this.listeners[type].push(listener);\n    }\n    /**\n     * Remove a listener for a specified event type.\n     *\n     * @param {string} type the event name\n     * @param {Function} listener  a function previously registered for this\n     * type of event through `on`\n     * @return {boolean} if we could turn it off or not\n     */\n    ;\n\n    _proto.off = function off(type, listener) {\n      if (!this.listeners[type]) {\n        return false;\n      }\n\n      var index = this.listeners[type].indexOf(listener); // TODO: which is better?\n      // In Video.js we slice listener functions\n      // on trigger so that it does not mess up the order\n      // while we loop through.\n      //\n      // Here we slice on off so that the loop in trigger\n      // can continue using it's old reference to loop without\n      // messing up the order.\n\n      this.listeners[type] = this.listeners[type].slice(0);\n      this.listeners[type].splice(index, 1);\n      return index > -1;\n    }\n    /**\n     * Trigger an event of the specified type on this stream. Any additional\n     * arguments to this function are passed as parameters to event listeners.\n     *\n     * @param {string} type the event name\n     */\n    ;\n\n    _proto.trigger = function trigger(type) {\n      var callbacks = this.listeners[type];\n\n      if (!callbacks) {\n        return;\n      } // Slicing the arguments on every invocation of this method\n      // can add a significant amount of overhead. Avoid the\n      // intermediate object creation for the common case of a\n      // single callback argument\n\n\n      if (arguments.length === 2) {\n        var length = callbacks.length;\n\n        for (var i = 0; i < length; ++i) {\n          callbacks[i].call(this, arguments[1]);\n        }\n      } else {\n        var args = Array.prototype.slice.call(arguments, 1);\n        var _length = callbacks.length;\n\n        for (var _i = 0; _i < _length; ++_i) {\n          callbacks[_i].apply(this, args);\n        }\n      }\n    }\n    /**\n     * Destroys the stream and cleans up.\n     */\n    ;\n\n    _proto.dispose = function dispose() {\n      this.listeners = {};\n    }\n    /**\n     * Forwards all `data` events on this stream to the destination stream. The\n     * destination stream should provide a method `push` to receive the data\n     * events as they arrive.\n     *\n     * @param {Stream} destination the stream that will receive all `data` events\n     * @see http://nodejs.org/api/stream.html#stream_readable_pipe_destination_options\n     */\n    ;\n\n    _proto.pipe = function pipe(destination) {\n      this.on('data', function (data) {\n        destination.push(data);\n      });\n    };\n\n    return Stream;\n  }();\n\n  var atob$1 = function atob(s) {\n    return window.atob ? window.atob(s) : Buffer.from(s, 'base64').toString('binary');\n  };\n\n  function decodeB64ToUint8Array$1(b64Text) {\n    var decodedString = atob$1(b64Text);\n    var array = new Uint8Array(decodedString.length);\n\n    for (var i = 0; i < decodedString.length; i++) {\n      array[i] = decodedString.charCodeAt(i);\n    }\n\n    return array;\n  }\n\n  /*! @name m3u8-parser @version 4.7.1 @license Apache-2.0 */\n  /**\n   * A stream that buffers string input and generates a `data` event for each\n   * line.\n   *\n   * @class LineStream\n   * @extends Stream\n   */\n\n  var LineStream = /*#__PURE__*/function (_Stream) {\n    inheritsLoose(LineStream, _Stream);\n\n    function LineStream() {\n      var _this;\n\n      _this = _Stream.call(this) || this;\n      _this.buffer = '';\n      return _this;\n    }\n    /**\n     * Add new data to be parsed.\n     *\n     * @param {string} data the text to process\n     */\n\n\n    var _proto = LineStream.prototype;\n\n    _proto.push = function push(data) {\n      var nextNewline;\n      this.buffer += data;\n      nextNewline = this.buffer.indexOf('\\n');\n\n      for (; nextNewline > -1; nextNewline = this.buffer.indexOf('\\n')) {\n        this.trigger('data', this.buffer.substring(0, nextNewline));\n        this.buffer = this.buffer.substring(nextNewline + 1);\n      }\n    };\n\n    return LineStream;\n  }(Stream);\n\n  var TAB = String.fromCharCode(0x09);\n\n  var parseByterange = function parseByterange(byterangeString) {\n    // optionally match and capture 0+ digits before `@`\n    // optionally match and capture 0+ digits after `@`\n    var match = /([0-9.]*)?@?([0-9.]*)?/.exec(byterangeString || '');\n    var result = {};\n\n    if (match[1]) {\n      result.length = parseInt(match[1], 10);\n    }\n\n    if (match[2]) {\n      result.offset = parseInt(match[2], 10);\n    }\n\n    return result;\n  };\n  /**\n   * \"forgiving\" attribute list psuedo-grammar:\n   * attributes -> keyvalue (',' keyvalue)*\n   * keyvalue   -> key '=' value\n   * key        -> [^=]*\n   * value      -> '\"' [^\"]* '\"' | [^,]*\n   */\n\n\n  var attributeSeparator = function attributeSeparator() {\n    var key = '[^=]*';\n    var value = '\"[^\"]*\"|[^,]*';\n    var keyvalue = '(?:' + key + ')=(?:' + value + ')';\n    return new RegExp('(?:^|,)(' + keyvalue + ')');\n  };\n  /**\n   * Parse attributes from a line given the separator\n   *\n   * @param {string} attributes the attribute line to parse\n   */\n\n\n  var parseAttributes$1 = function parseAttributes(attributes) {\n    // split the string using attributes as the separator\n    var attrs = attributes.split(attributeSeparator());\n    var result = {};\n    var i = attrs.length;\n    var attr;\n\n    while (i--) {\n      // filter out unmatched portions of the string\n      if (attrs[i] === '') {\n        continue;\n      } // split the key and value\n\n\n      attr = /([^=]*)=(.*)/.exec(attrs[i]).slice(1); // trim whitespace and remove optional quotes around the value\n\n      attr[0] = attr[0].replace(/^\\s+|\\s+$/g, '');\n      attr[1] = attr[1].replace(/^\\s+|\\s+$/g, '');\n      attr[1] = attr[1].replace(/^['\"](.*)['\"]$/g, '$1');\n      result[attr[0]] = attr[1];\n    }\n\n    return result;\n  };\n  /**\n   * A line-level M3U8 parser event stream. It expects to receive input one\n   * line at a time and performs a context-free parse of its contents. A stream\n   * interpretation of a manifest can be useful if the manifest is expected to\n   * be too large to fit comfortably into memory or the entirety of the input\n   * is not immediately available. Otherwise, it's probably much easier to work\n   * with a regular `Parser` object.\n   *\n   * Produces `data` events with an object that captures the parser's\n   * interpretation of the input. That object has a property `tag` that is one\n   * of `uri`, `comment`, or `tag`. URIs only have a single additional\n   * property, `line`, which captures the entirety of the input without\n   * interpretation. Comments similarly have a single additional property\n   * `text` which is the input without the leading `#`.\n   *\n   * Tags always have a property `tagType` which is the lower-cased version of\n   * the M3U8 directive without the `#EXT` or `#EXT-X-` prefix. For instance,\n   * `#EXT-X-MEDIA-SEQUENCE` becomes `media-sequence` when parsed. Unrecognized\n   * tags are given the tag type `unknown` and a single additional property\n   * `data` with the remainder of the input.\n   *\n   * @class ParseStream\n   * @extends Stream\n   */\n\n\n  var ParseStream = /*#__PURE__*/function (_Stream) {\n    inheritsLoose(ParseStream, _Stream);\n\n    function ParseStream() {\n      var _this;\n\n      _this = _Stream.call(this) || this;\n      _this.customParsers = [];\n      _this.tagMappers = [];\n      return _this;\n    }\n    /**\n     * Parses an additional line of input.\n     *\n     * @param {string} line a single line of an M3U8 file to parse\n     */\n\n\n    var _proto = ParseStream.prototype;\n\n    _proto.push = function push(line) {\n      var _this2 = this;\n\n      var match;\n      var event; // strip whitespace\n\n      line = line.trim();\n\n      if (line.length === 0) {\n        // ignore empty lines\n        return;\n      } // URIs\n\n\n      if (line[0] !== '#') {\n        this.trigger('data', {\n          type: 'uri',\n          uri: line\n        });\n        return;\n      } // map tags\n\n\n      var newLines = this.tagMappers.reduce(function (acc, mapper) {\n        var mappedLine = mapper(line); // skip if unchanged\n\n        if (mappedLine === line) {\n          return acc;\n        }\n\n        return acc.concat([mappedLine]);\n      }, [line]);\n      newLines.forEach(function (newLine) {\n        for (var i = 0; i < _this2.customParsers.length; i++) {\n          if (_this2.customParsers[i].call(_this2, newLine)) {\n            return;\n          }\n        } // Comments\n\n\n        if (newLine.indexOf('#EXT') !== 0) {\n          _this2.trigger('data', {\n            type: 'comment',\n            text: newLine.slice(1)\n          });\n\n          return;\n        } // strip off any carriage returns here so the regex matching\n        // doesn't have to account for them.\n\n\n        newLine = newLine.replace('\\r', ''); // Tags\n\n        match = /^#EXTM3U/.exec(newLine);\n\n        if (match) {\n          _this2.trigger('data', {\n            type: 'tag',\n            tagType: 'm3u'\n          });\n\n          return;\n        }\n\n        match = /^#EXTINF:?([0-9\\.]*)?,?(.*)?$/.exec(newLine);\n\n        if (match) {\n          event = {\n            type: 'tag',\n            tagType: 'inf'\n          };\n\n          if (match[1]) {\n            event.duration = parseFloat(match[1]);\n          }\n\n          if (match[2]) {\n            event.title = match[2];\n          }\n\n          _this2.trigger('data', event);\n\n          return;\n        }\n\n        match = /^#EXT-X-TARGETDURATION:?([0-9.]*)?/.exec(newLine);\n\n        if (match) {\n          event = {\n            type: 'tag',\n            tagType: 'targetduration'\n          };\n\n          if (match[1]) {\n            event.duration = parseInt(match[1], 10);\n          }\n\n          _this2.trigger('data', event);\n\n          return;\n        }\n\n        match = /^#EXT-X-VERSION:?([0-9.]*)?/.exec(newLine);\n\n        if (match) {\n          event = {\n            type: 'tag',\n            tagType: 'version'\n          };\n\n          if (match[1]) {\n            event.version = parseInt(match[1], 10);\n          }\n\n          _this2.trigger('data', event);\n\n          return;\n        }\n\n        match = /^#EXT-X-MEDIA-SEQUENCE:?(\\-?[0-9.]*)?/.exec(newLine);\n\n        if (match) {\n          event = {\n            type: 'tag',\n            tagType: 'media-sequence'\n          };\n\n          if (match[1]) {\n            event.number = parseInt(match[1], 10);\n          }\n\n          _this2.trigger('data', event);\n\n          return;\n        }\n\n        match = /^#EXT-X-DISCONTINUITY-SEQUENCE:?(\\-?[0-9.]*)?/.exec(newLine);\n\n        if (match) {\n          event = {\n            type: 'tag',\n            tagType: 'discontinuity-sequence'\n          };\n\n          if (match[1]) {\n            event.number = parseInt(match[1], 10);\n          }\n\n          _this2.trigger('data', event);\n\n          return;\n        }\n\n        match = /^#EXT-X-PLAYLIST-TYPE:?(.*)?$/.exec(newLine);\n\n        if (match) {\n          event = {\n            type: 'tag',\n            tagType: 'playlist-type'\n          };\n\n          if (match[1]) {\n            event.playlistType = match[1];\n          }\n\n          _this2.trigger('data', event);\n\n          return;\n        }\n\n        match = /^#EXT-X-BYTERANGE:?(.*)?$/.exec(newLine);\n\n        if (match) {\n          event = _extends_1(parseByterange(match[1]), {\n            type: 'tag',\n            tagType: 'byterange'\n          });\n\n          _this2.trigger('data', event);\n\n          return;\n        }\n\n        match = /^#EXT-X-ALLOW-CACHE:?(YES|NO)?/.exec(newLine);\n\n        if (match) {\n          event = {\n            type: 'tag',\n            tagType: 'allow-cache'\n          };\n\n          if (match[1]) {\n            event.allowed = !/NO/.test(match[1]);\n          }\n\n          _this2.trigger('data', event);\n\n          return;\n        }\n\n        match = /^#EXT-X-MAP:?(.*)$/.exec(newLine);\n\n        if (match) {\n          event = {\n            type: 'tag',\n            tagType: 'map'\n          };\n\n          if (match[1]) {\n            var attributes = parseAttributes$1(match[1]);\n\n            if (attributes.URI) {\n              event.uri = attributes.URI;\n            }\n\n            if (attributes.BYTERANGE) {\n              event.byterange = parseByterange(attributes.BYTERANGE);\n            }\n          }\n\n          _this2.trigger('data', event);\n\n          return;\n        }\n\n        match = /^#EXT-X-STREAM-INF:?(.*)$/.exec(newLine);\n\n        if (match) {\n          event = {\n            type: 'tag',\n            tagType: 'stream-inf'\n          };\n\n          if (match[1]) {\n            event.attributes = parseAttributes$1(match[1]);\n\n            if (event.attributes.RESOLUTION) {\n              var split = event.attributes.RESOLUTION.split('x');\n              var resolution = {};\n\n              if (split[0]) {\n                resolution.width = parseInt(split[0], 10);\n              }\n\n              if (split[1]) {\n                resolution.height = parseInt(split[1], 10);\n              }\n\n              event.attributes.RESOLUTION = resolution;\n            }\n\n            if (event.attributes.BANDWIDTH) {\n              event.attributes.BANDWIDTH = parseInt(event.attributes.BANDWIDTH, 10);\n            }\n\n            if (event.attributes['PROGRAM-ID']) {\n              event.attributes['PROGRAM-ID'] = parseInt(event.attributes['PROGRAM-ID'], 10);\n            }\n          }\n\n          _this2.trigger('data', event);\n\n          return;\n        }\n\n        match = /^#EXT-X-MEDIA:?(.*)$/.exec(newLine);\n\n        if (match) {\n          event = {\n            type: 'tag',\n            tagType: 'media'\n          };\n\n          if (match[1]) {\n            event.attributes = parseAttributes$1(match[1]);\n          }\n\n          _this2.trigger('data', event);\n\n          return;\n        }\n\n        match = /^#EXT-X-ENDLIST/.exec(newLine);\n\n        if (match) {\n          _this2.trigger('data', {\n            type: 'tag',\n            tagType: 'endlist'\n          });\n\n          return;\n        }\n\n        match = /^#EXT-X-DISCONTINUITY/.exec(newLine);\n\n        if (match) {\n          _this2.trigger('data', {\n            type: 'tag',\n            tagType: 'discontinuity'\n          });\n\n          return;\n        }\n\n        match = /^#EXT-X-PROGRAM-DATE-TIME:?(.*)$/.exec(newLine);\n\n        if (match) {\n          event = {\n            type: 'tag',\n            tagType: 'program-date-time'\n          };\n\n          if (match[1]) {\n            event.dateTimeString = match[1];\n            event.dateTimeObject = new Date(match[1]);\n          }\n\n          _this2.trigger('data', event);\n\n          return;\n        }\n\n        match = /^#EXT-X-KEY:?(.*)$/.exec(newLine);\n\n        if (match) {\n          event = {\n            type: 'tag',\n            tagType: 'key'\n          };\n\n          if (match[1]) {\n            event.attributes = parseAttributes$1(match[1]); // parse the IV string into a Uint32Array\n\n            if (event.attributes.IV) {\n              if (event.attributes.IV.substring(0, 2).toLowerCase() === '0x') {\n                event.attributes.IV = event.attributes.IV.substring(2);\n              }\n\n              event.attributes.IV = event.attributes.IV.match(/.{8}/g);\n              event.attributes.IV[0] = parseInt(event.attributes.IV[0], 16);\n              event.attributes.IV[1] = parseInt(event.attributes.IV[1], 16);\n              event.attributes.IV[2] = parseInt(event.attributes.IV[2], 16);\n              event.attributes.IV[3] = parseInt(event.attributes.IV[3], 16);\n              event.attributes.IV = new Uint32Array(event.attributes.IV);\n            }\n          }\n\n          _this2.trigger('data', event);\n\n          return;\n        }\n\n        match = /^#EXT-X-START:?(.*)$/.exec(newLine);\n\n        if (match) {\n          event = {\n            type: 'tag',\n            tagType: 'start'\n          };\n\n          if (match[1]) {\n            event.attributes = parseAttributes$1(match[1]);\n            event.attributes['TIME-OFFSET'] = parseFloat(event.attributes['TIME-OFFSET']);\n            event.attributes.PRECISE = /YES/.test(event.attributes.PRECISE);\n          }\n\n          _this2.trigger('data', event);\n\n          return;\n        }\n\n        match = /^#EXT-X-CUE-OUT-CONT:?(.*)?$/.exec(newLine);\n\n        if (match) {\n          event = {\n            type: 'tag',\n            tagType: 'cue-out-cont'\n          };\n\n          if (match[1]) {\n            event.data = match[1];\n          } else {\n            event.data = '';\n          }\n\n          _this2.trigger('data', event);\n\n          return;\n        }\n\n        match = /^#EXT-X-CUE-OUT:?(.*)?$/.exec(newLine);\n\n        if (match) {\n          event = {\n            type: 'tag',\n            tagType: 'cue-out'\n          };\n\n          if (match[1]) {\n            event.data = match[1];\n          } else {\n            event.data = '';\n          }\n\n          _this2.trigger('data', event);\n\n          return;\n        }\n\n        match = /^#EXT-X-CUE-IN:?(.*)?$/.exec(newLine);\n\n        if (match) {\n          event = {\n            type: 'tag',\n            tagType: 'cue-in'\n          };\n\n          if (match[1]) {\n            event.data = match[1];\n          } else {\n            event.data = '';\n          }\n\n          _this2.trigger('data', event);\n\n          return;\n        }\n\n        match = /^#EXT-X-SKIP:(.*)$/.exec(newLine);\n\n        if (match && match[1]) {\n          event = {\n            type: 'tag',\n            tagType: 'skip'\n          };\n          event.attributes = parseAttributes$1(match[1]);\n\n          if (event.attributes.hasOwnProperty('SKIPPED-SEGMENTS')) {\n            event.attributes['SKIPPED-SEGMENTS'] = parseInt(event.attributes['SKIPPED-SEGMENTS'], 10);\n          }\n\n          if (event.attributes.hasOwnProperty('RECENTLY-REMOVED-DATERANGES')) {\n            event.attributes['RECENTLY-REMOVED-DATERANGES'] = event.attributes['RECENTLY-REMOVED-DATERANGES'].split(TAB);\n          }\n\n          _this2.trigger('data', event);\n\n          return;\n        }\n\n        match = /^#EXT-X-PART:(.*)$/.exec(newLine);\n\n        if (match && match[1]) {\n          event = {\n            type: 'tag',\n            tagType: 'part'\n          };\n          event.attributes = parseAttributes$1(match[1]);\n          ['DURATION'].forEach(function (key) {\n            if (event.attributes.hasOwnProperty(key)) {\n              event.attributes[key] = parseFloat(event.attributes[key]);\n            }\n          });\n          ['INDEPENDENT', 'GAP'].forEach(function (key) {\n            if (event.attributes.hasOwnProperty(key)) {\n              event.attributes[key] = /YES/.test(event.attributes[key]);\n            }\n          });\n\n          if (event.attributes.hasOwnProperty('BYTERANGE')) {\n            event.attributes.byterange = parseByterange(event.attributes.BYTERANGE);\n          }\n\n          _this2.trigger('data', event);\n\n          return;\n        }\n\n        match = /^#EXT-X-SERVER-CONTROL:(.*)$/.exec(newLine);\n\n        if (match && match[1]) {\n          event = {\n            type: 'tag',\n            tagType: 'server-control'\n          };\n          event.attributes = parseAttributes$1(match[1]);\n          ['CAN-SKIP-UNTIL', 'PART-HOLD-BACK', 'HOLD-BACK'].forEach(function (key) {\n            if (event.attributes.hasOwnProperty(key)) {\n              event.attributes[key] = parseFloat(event.attributes[key]);\n            }\n          });\n          ['CAN-SKIP-DATERANGES', 'CAN-BLOCK-RELOAD'].forEach(function (key) {\n            if (event.attributes.hasOwnProperty(key)) {\n              event.attributes[key] = /YES/.test(event.attributes[key]);\n            }\n          });\n\n          _this2.trigger('data', event);\n\n          return;\n        }\n\n        match = /^#EXT-X-PART-INF:(.*)$/.exec(newLine);\n\n        if (match && match[1]) {\n          event = {\n            type: 'tag',\n            tagType: 'part-inf'\n          };\n          event.attributes = parseAttributes$1(match[1]);\n          ['PART-TARGET'].forEach(function (key) {\n            if (event.attributes.hasOwnProperty(key)) {\n              event.attributes[key] = parseFloat(event.attributes[key]);\n            }\n          });\n\n          _this2.trigger('data', event);\n\n          return;\n        }\n\n        match = /^#EXT-X-PRELOAD-HINT:(.*)$/.exec(newLine);\n\n        if (match && match[1]) {\n          event = {\n            type: 'tag',\n            tagType: 'preload-hint'\n          };\n          event.attributes = parseAttributes$1(match[1]);\n          ['BYTERANGE-START', 'BYTERANGE-LENGTH'].forEach(function (key) {\n            if (event.attributes.hasOwnProperty(key)) {\n              event.attributes[key] = parseInt(event.attributes[key], 10);\n              var subkey = key === 'BYTERANGE-LENGTH' ? 'length' : 'offset';\n              event.attributes.byterange = event.attributes.byterange || {};\n              event.attributes.byterange[subkey] = event.attributes[key]; // only keep the parsed byterange object.\n\n              delete event.attributes[key];\n            }\n          });\n\n          _this2.trigger('data', event);\n\n          return;\n        }\n\n        match = /^#EXT-X-RENDITION-REPORT:(.*)$/.exec(newLine);\n\n        if (match && match[1]) {\n          event = {\n            type: 'tag',\n            tagType: 'rendition-report'\n          };\n          event.attributes = parseAttributes$1(match[1]);\n          ['LAST-MSN', 'LAST-PART'].forEach(function (key) {\n            if (event.attributes.hasOwnProperty(key)) {\n              event.attributes[key] = parseInt(event.attributes[key], 10);\n            }\n          });\n\n          _this2.trigger('data', event);\n\n          return;\n        } // unknown tag type\n\n\n        _this2.trigger('data', {\n          type: 'tag',\n          data: newLine.slice(4)\n        });\n      });\n    }\n    /**\n     * Add a parser for custom headers\n     *\n     * @param {Object}   options              a map of options for the added parser\n     * @param {RegExp}   options.expression   a regular expression to match the custom header\n     * @param {string}   options.customType   the custom type to register to the output\n     * @param {Function} [options.dataParser] function to parse the line into an object\n     * @param {boolean}  [options.segment]    should tag data be attached to the segment object\n     */\n    ;\n\n    _proto.addParser = function addParser(_ref) {\n      var _this3 = this;\n\n      var expression = _ref.expression,\n          customType = _ref.customType,\n          dataParser = _ref.dataParser,\n          segment = _ref.segment;\n\n      if (typeof dataParser !== 'function') {\n        dataParser = function dataParser(line) {\n          return line;\n        };\n      }\n\n      this.customParsers.push(function (line) {\n        var match = expression.exec(line);\n\n        if (match) {\n          _this3.trigger('data', {\n            type: 'custom',\n            data: dataParser(line),\n            customType: customType,\n            segment: segment\n          });\n\n          return true;\n        }\n      });\n    }\n    /**\n     * Add a custom header mapper\n     *\n     * @param {Object}   options\n     * @param {RegExp}   options.expression   a regular expression to match the custom header\n     * @param {Function} options.map          function to translate tag into a different tag\n     */\n    ;\n\n    _proto.addTagMapper = function addTagMapper(_ref2) {\n      var expression = _ref2.expression,\n          map = _ref2.map;\n\n      var mapFn = function mapFn(line) {\n        if (expression.test(line)) {\n          return map(line);\n        }\n\n        return line;\n      };\n\n      this.tagMappers.push(mapFn);\n    };\n\n    return ParseStream;\n  }(Stream);\n\n  var camelCase = function camelCase(str) {\n    return str.toLowerCase().replace(/-(\\w)/g, function (a) {\n      return a[1].toUpperCase();\n    });\n  };\n\n  var camelCaseKeys = function camelCaseKeys(attributes) {\n    var result = {};\n    Object.keys(attributes).forEach(function (key) {\n      result[camelCase(key)] = attributes[key];\n    });\n    return result;\n  }; // set SERVER-CONTROL hold back based upon targetDuration and partTargetDuration\n  // we need this helper because defaults are based upon targetDuration and\n  // partTargetDuration being set, but they may not be if SERVER-CONTROL appears before\n  // target durations are set.\n\n\n  var setHoldBack = function setHoldBack(manifest) {\n    var serverControl = manifest.serverControl,\n        targetDuration = manifest.targetDuration,\n        partTargetDuration = manifest.partTargetDuration;\n\n    if (!serverControl) {\n      return;\n    }\n\n    var tag = '#EXT-X-SERVER-CONTROL';\n    var hb = 'holdBack';\n    var phb = 'partHoldBack';\n    var minTargetDuration = targetDuration && targetDuration * 3;\n    var minPartDuration = partTargetDuration && partTargetDuration * 2;\n\n    if (targetDuration && !serverControl.hasOwnProperty(hb)) {\n      serverControl[hb] = minTargetDuration;\n      this.trigger('info', {\n        message: tag + \" defaulting HOLD-BACK to targetDuration * 3 (\" + minTargetDuration + \").\"\n      });\n    }\n\n    if (minTargetDuration && serverControl[hb] < minTargetDuration) {\n      this.trigger('warn', {\n        message: tag + \" clamping HOLD-BACK (\" + serverControl[hb] + \") to targetDuration * 3 (\" + minTargetDuration + \")\"\n      });\n      serverControl[hb] = minTargetDuration;\n    } // default no part hold back to part target duration * 3\n\n\n    if (partTargetDuration && !serverControl.hasOwnProperty(phb)) {\n      serverControl[phb] = partTargetDuration * 3;\n      this.trigger('info', {\n        message: tag + \" defaulting PART-HOLD-BACK to partTargetDuration * 3 (\" + serverControl[phb] + \").\"\n      });\n    } // if part hold back is too small default it to part target duration * 2\n\n\n    if (partTargetDuration && serverControl[phb] < minPartDuration) {\n      this.trigger('warn', {\n        message: tag + \" clamping PART-HOLD-BACK (\" + serverControl[phb] + \") to partTargetDuration * 2 (\" + minPartDuration + \").\"\n      });\n      serverControl[phb] = minPartDuration;\n    }\n  };\n  /**\n   * A parser for M3U8 files. The current interpretation of the input is\n   * exposed as a property `manifest` on parser objects. It's just two lines to\n   * create and parse a manifest once you have the contents available as a string:\n   *\n   * ```js\n   * var parser = new m3u8.Parser();\n   * parser.push(xhr.responseText);\n   * ```\n   *\n   * New input can later be applied to update the manifest object by calling\n   * `push` again.\n   *\n   * The parser attempts to create a usable manifest object even if the\n   * underlying input is somewhat nonsensical. It emits `info` and `warning`\n   * events during the parse if it encounters input that seems invalid or\n   * requires some property of the manifest object to be defaulted.\n   *\n   * @class Parser\n   * @extends Stream\n   */\n\n\n  var Parser = /*#__PURE__*/function (_Stream) {\n    inheritsLoose(Parser, _Stream);\n\n    function Parser() {\n      var _this;\n\n      _this = _Stream.call(this) || this;\n      _this.lineStream = new LineStream();\n      _this.parseStream = new ParseStream();\n\n      _this.lineStream.pipe(_this.parseStream);\n      /* eslint-disable consistent-this */\n\n\n      var self = assertThisInitialized(_this);\n      /* eslint-enable consistent-this */\n\n\n      var uris = [];\n      var currentUri = {}; // if specified, the active EXT-X-MAP definition\n\n      var currentMap; // if specified, the active decryption key\n\n      var _key;\n\n      var hasParts = false;\n\n      var noop = function noop() {};\n\n      var defaultMediaGroups = {\n        'AUDIO': {},\n        'VIDEO': {},\n        'CLOSED-CAPTIONS': {},\n        'SUBTITLES': {}\n      }; // This is the Widevine UUID from DASH IF IOP. The same exact string is\n      // used in MPDs with Widevine encrypted streams.\n\n      var widevineUuid = 'urn:uuid:edef8ba9-79d6-4ace-a3c8-27dcd51d21ed'; // group segments into numbered timelines delineated by discontinuities\n\n      var currentTimeline = 0; // the manifest is empty until the parse stream begins delivering data\n\n      _this.manifest = {\n        allowCache: true,\n        discontinuityStarts: [],\n        segments: []\n      }; // keep track of the last seen segment's byte range end, as segments are not required\n      // to provide the offset, in which case it defaults to the next byte after the\n      // previous segment\n\n      var lastByterangeEnd = 0; // keep track of the last seen part's byte range end.\n\n      var lastPartByterangeEnd = 0;\n\n      _this.on('end', function () {\n        // only add preloadSegment if we don't yet have a uri for it.\n        // and we actually have parts/preloadHints\n        if (currentUri.uri || !currentUri.parts && !currentUri.preloadHints) {\n          return;\n        }\n\n        if (!currentUri.map && currentMap) {\n          currentUri.map = currentMap;\n        }\n\n        if (!currentUri.key && _key) {\n          currentUri.key = _key;\n        }\n\n        if (!currentUri.timeline && typeof currentTimeline === 'number') {\n          currentUri.timeline = currentTimeline;\n        }\n\n        _this.manifest.preloadSegment = currentUri;\n      }); // update the manifest with the m3u8 entry from the parse stream\n\n\n      _this.parseStream.on('data', function (entry) {\n        var mediaGroup;\n        var rendition;\n        ({\n          tag: function tag() {\n            // switch based on the tag type\n            (({\n              version: function version() {\n                if (entry.version) {\n                  this.manifest.version = entry.version;\n                }\n              },\n              'allow-cache': function allowCache() {\n                this.manifest.allowCache = entry.allowed;\n\n                if (!('allowed' in entry)) {\n                  this.trigger('info', {\n                    message: 'defaulting allowCache to YES'\n                  });\n                  this.manifest.allowCache = true;\n                }\n              },\n              byterange: function byterange() {\n                var byterange = {};\n\n                if ('length' in entry) {\n                  currentUri.byterange = byterange;\n                  byterange.length = entry.length;\n\n                  if (!('offset' in entry)) {\n                    /*\n                     * From the latest spec (as of this writing):\n                     * https://tools.ietf.org/html/draft-pantos-http-live-streaming-23#section-4.3.2.2\n                     *\n                     * Same text since EXT-X-BYTERANGE's introduction in draft 7:\n                     * https://tools.ietf.org/html/draft-pantos-http-live-streaming-07#section-3.3.1)\n                     *\n                     * \"If o [offset] is not present, the sub-range begins at the next byte\n                     * following the sub-range of the previous media segment.\"\n                     */\n                    entry.offset = lastByterangeEnd;\n                  }\n                }\n\n                if ('offset' in entry) {\n                  currentUri.byterange = byterange;\n                  byterange.offset = entry.offset;\n                }\n\n                lastByterangeEnd = byterange.offset + byterange.length;\n              },\n              endlist: function endlist() {\n                this.manifest.endList = true;\n              },\n              inf: function inf() {\n                if (!('mediaSequence' in this.manifest)) {\n                  this.manifest.mediaSequence = 0;\n                  this.trigger('info', {\n                    message: 'defaulting media sequence to zero'\n                  });\n                }\n\n                if (!('discontinuitySequence' in this.manifest)) {\n                  this.manifest.discontinuitySequence = 0;\n                  this.trigger('info', {\n                    message: 'defaulting discontinuity sequence to zero'\n                  });\n                }\n\n                if (entry.duration > 0) {\n                  currentUri.duration = entry.duration;\n                }\n\n                if (entry.duration === 0) {\n                  currentUri.duration = 0.01;\n                  this.trigger('info', {\n                    message: 'updating zero segment duration to a small value'\n                  });\n                }\n\n                this.manifest.segments = uris;\n              },\n              key: function key() {\n                if (!entry.attributes) {\n                  this.trigger('warn', {\n                    message: 'ignoring key declaration without attribute list'\n                  });\n                  return;\n                } // clear the active encryption key\n\n\n                if (entry.attributes.METHOD === 'NONE') {\n                  _key = null;\n                  return;\n                }\n\n                if (!entry.attributes.URI) {\n                  this.trigger('warn', {\n                    message: 'ignoring key declaration without URI'\n                  });\n                  return;\n                }\n\n                if (entry.attributes.KEYFORMAT === 'com.apple.streamingkeydelivery') {\n                  this.manifest.contentProtection = this.manifest.contentProtection || {}; // TODO: add full support for this.\n\n                  this.manifest.contentProtection['com.apple.fps.1_0'] = {\n                    attributes: entry.attributes\n                  };\n                  return;\n                }\n\n                if (entry.attributes.KEYFORMAT === 'com.microsoft.playready') {\n                  this.manifest.contentProtection = this.manifest.contentProtection || {}; // TODO: add full support for this.\n\n                  this.manifest.contentProtection['com.microsoft.playready'] = {\n                    uri: entry.attributes.URI\n                  };\n                  return;\n                } // check if the content is encrypted for Widevine\n                // Widevine/HLS spec: https://storage.googleapis.com/wvdocs/Widevine_DRM_HLS.pdf\n\n\n                if (entry.attributes.KEYFORMAT === widevineUuid) {\n                  var VALID_METHODS = ['SAMPLE-AES', 'SAMPLE-AES-CTR', 'SAMPLE-AES-CENC'];\n\n                  if (VALID_METHODS.indexOf(entry.attributes.METHOD) === -1) {\n                    this.trigger('warn', {\n                      message: 'invalid key method provided for Widevine'\n                    });\n                    return;\n                  }\n\n                  if (entry.attributes.METHOD === 'SAMPLE-AES-CENC') {\n                    this.trigger('warn', {\n                      message: 'SAMPLE-AES-CENC is deprecated, please use SAMPLE-AES-CTR instead'\n                    });\n                  }\n\n                  if (entry.attributes.URI.substring(0, 23) !== 'data:text/plain;base64,') {\n                    this.trigger('warn', {\n                      message: 'invalid key URI provided for Widevine'\n                    });\n                    return;\n                  }\n\n                  if (!(entry.attributes.KEYID && entry.attributes.KEYID.substring(0, 2) === '0x')) {\n                    this.trigger('warn', {\n                      message: 'invalid key ID provided for Widevine'\n                    });\n                    return;\n                  } // if Widevine key attributes are valid, store them as `contentProtection`\n                  // on the manifest to emulate Widevine tag structure in a DASH mpd\n\n\n                  this.manifest.contentProtection = this.manifest.contentProtection || {};\n                  this.manifest.contentProtection['com.widevine.alpha'] = {\n                    attributes: {\n                      schemeIdUri: entry.attributes.KEYFORMAT,\n                      // remove '0x' from the key id string\n                      keyId: entry.attributes.KEYID.substring(2)\n                    },\n                    // decode the base64-encoded PSSH box\n                    pssh: decodeB64ToUint8Array$1(entry.attributes.URI.split(',')[1])\n                  };\n                  return;\n                }\n\n                if (!entry.attributes.METHOD) {\n                  this.trigger('warn', {\n                    message: 'defaulting key method to AES-128'\n                  });\n                } // setup an encryption key for upcoming segments\n\n\n                _key = {\n                  method: entry.attributes.METHOD || 'AES-128',\n                  uri: entry.attributes.URI\n                };\n\n                if (typeof entry.attributes.IV !== 'undefined') {\n                  _key.iv = entry.attributes.IV;\n                }\n              },\n              'media-sequence': function mediaSequence() {\n                if (!isFinite(entry.number)) {\n                  this.trigger('warn', {\n                    message: 'ignoring invalid media sequence: ' + entry.number\n                  });\n                  return;\n                }\n\n                this.manifest.mediaSequence = entry.number;\n              },\n              'discontinuity-sequence': function discontinuitySequence() {\n                if (!isFinite(entry.number)) {\n                  this.trigger('warn', {\n                    message: 'ignoring invalid discontinuity sequence: ' + entry.number\n                  });\n                  return;\n                }\n\n                this.manifest.discontinuitySequence = entry.number;\n                currentTimeline = entry.number;\n              },\n              'playlist-type': function playlistType() {\n                if (!/VOD|EVENT/.test(entry.playlistType)) {\n                  this.trigger('warn', {\n                    message: 'ignoring unknown playlist type: ' + entry.playlist\n                  });\n                  return;\n                }\n\n                this.manifest.playlistType = entry.playlistType;\n              },\n              map: function map() {\n                currentMap = {};\n\n                if (entry.uri) {\n                  currentMap.uri = entry.uri;\n                }\n\n                if (entry.byterange) {\n                  currentMap.byterange = entry.byterange;\n                }\n\n                if (_key) {\n                  currentMap.key = _key;\n                }\n              },\n              'stream-inf': function streamInf() {\n                this.manifest.playlists = uris;\n                this.manifest.mediaGroups = this.manifest.mediaGroups || defaultMediaGroups;\n\n                if (!entry.attributes) {\n                  this.trigger('warn', {\n                    message: 'ignoring empty stream-inf attributes'\n                  });\n                  return;\n                }\n\n                if (!currentUri.attributes) {\n                  currentUri.attributes = {};\n                }\n\n                _extends_1(currentUri.attributes, entry.attributes);\n              },\n              media: function media() {\n                this.manifest.mediaGroups = this.manifest.mediaGroups || defaultMediaGroups;\n\n                if (!(entry.attributes && entry.attributes.TYPE && entry.attributes['GROUP-ID'] && entry.attributes.NAME)) {\n                  this.trigger('warn', {\n                    message: 'ignoring incomplete or missing media group'\n                  });\n                  return;\n                } // find the media group, creating defaults as necessary\n\n\n                var mediaGroupType = this.manifest.mediaGroups[entry.attributes.TYPE];\n                mediaGroupType[entry.attributes['GROUP-ID']] = mediaGroupType[entry.attributes['GROUP-ID']] || {};\n                mediaGroup = mediaGroupType[entry.attributes['GROUP-ID']]; // collect the rendition metadata\n\n                rendition = {\n                  \"default\": /yes/i.test(entry.attributes.DEFAULT)\n                };\n\n                if (rendition[\"default\"]) {\n                  rendition.autoselect = true;\n                } else {\n                  rendition.autoselect = /yes/i.test(entry.attributes.AUTOSELECT);\n                }\n\n                if (entry.attributes.LANGUAGE) {\n                  rendition.language = entry.attributes.LANGUAGE;\n                }\n\n                if (entry.attributes.URI) {\n                  rendition.uri = entry.attributes.URI;\n                }\n\n                if (entry.attributes['INSTREAM-ID']) {\n                  rendition.instreamId = entry.attributes['INSTREAM-ID'];\n                }\n\n                if (entry.attributes.CHARACTERISTICS) {\n                  rendition.characteristics = entry.attributes.CHARACTERISTICS;\n                }\n\n                if (entry.attributes.FORCED) {\n                  rendition.forced = /yes/i.test(entry.attributes.FORCED);\n                } // insert the new rendition\n\n\n                mediaGroup[entry.attributes.NAME] = rendition;\n              },\n              discontinuity: function discontinuity() {\n                currentTimeline += 1;\n                currentUri.discontinuity = true;\n                this.manifest.discontinuityStarts.push(uris.length);\n              },\n              'program-date-time': function programDateTime() {\n                if (typeof this.manifest.dateTimeString === 'undefined') {\n                  // PROGRAM-DATE-TIME is a media-segment tag, but for backwards\n                  // compatibility, we add the first occurence of the PROGRAM-DATE-TIME tag\n                  // to the manifest object\n                  // TODO: Consider removing this in future major version\n                  this.manifest.dateTimeString = entry.dateTimeString;\n                  this.manifest.dateTimeObject = entry.dateTimeObject;\n                }\n\n                currentUri.dateTimeString = entry.dateTimeString;\n                currentUri.dateTimeObject = entry.dateTimeObject;\n              },\n              targetduration: function targetduration() {\n                if (!isFinite(entry.duration) || entry.duration < 0) {\n                  this.trigger('warn', {\n                    message: 'ignoring invalid target duration: ' + entry.duration\n                  });\n                  return;\n                }\n\n                this.manifest.targetDuration = entry.duration;\n                setHoldBack.call(this, this.manifest);\n              },\n              start: function start() {\n                if (!entry.attributes || isNaN(entry.attributes['TIME-OFFSET'])) {\n                  this.trigger('warn', {\n                    message: 'ignoring start declaration without appropriate attribute list'\n                  });\n                  return;\n                }\n\n                this.manifest.start = {\n                  timeOffset: entry.attributes['TIME-OFFSET'],\n                  precise: entry.attributes.PRECISE\n                };\n              },\n              'cue-out': function cueOut() {\n                currentUri.cueOut = entry.data;\n              },\n              'cue-out-cont': function cueOutCont() {\n                currentUri.cueOutCont = entry.data;\n              },\n              'cue-in': function cueIn() {\n                currentUri.cueIn = entry.data;\n              },\n              'skip': function skip() {\n                this.manifest.skip = camelCaseKeys(entry.attributes);\n                this.warnOnMissingAttributes_('#EXT-X-SKIP', entry.attributes, ['SKIPPED-SEGMENTS']);\n              },\n              'part': function part() {\n                var _this2 = this;\n\n                hasParts = true; // parts are always specifed before a segment\n\n                var segmentIndex = this.manifest.segments.length;\n                var part = camelCaseKeys(entry.attributes);\n                currentUri.parts = currentUri.parts || [];\n                currentUri.parts.push(part);\n\n                if (part.byterange) {\n                  if (!part.byterange.hasOwnProperty('offset')) {\n                    part.byterange.offset = lastPartByterangeEnd;\n                  }\n\n                  lastPartByterangeEnd = part.byterange.offset + part.byterange.length;\n                }\n\n                var partIndex = currentUri.parts.length - 1;\n                this.warnOnMissingAttributes_(\"#EXT-X-PART #\" + partIndex + \" for segment #\" + segmentIndex, entry.attributes, ['URI', 'DURATION']);\n\n                if (this.manifest.renditionReports) {\n                  this.manifest.renditionReports.forEach(function (r, i) {\n                    if (!r.hasOwnProperty('lastPart')) {\n                      _this2.trigger('warn', {\n                        message: \"#EXT-X-RENDITION-REPORT #\" + i + \" lacks required attribute(s): LAST-PART\"\n                      });\n                    }\n                  });\n                }\n              },\n              'server-control': function serverControl() {\n                var attrs = this.manifest.serverControl = camelCaseKeys(entry.attributes);\n\n                if (!attrs.hasOwnProperty('canBlockReload')) {\n                  attrs.canBlockReload = false;\n                  this.trigger('info', {\n                    message: '#EXT-X-SERVER-CONTROL defaulting CAN-BLOCK-RELOAD to false'\n                  });\n                }\n\n                setHoldBack.call(this, this.manifest);\n\n                if (attrs.canSkipDateranges && !attrs.hasOwnProperty('canSkipUntil')) {\n                  this.trigger('warn', {\n                    message: '#EXT-X-SERVER-CONTROL lacks required attribute CAN-SKIP-UNTIL which is required when CAN-SKIP-DATERANGES is set'\n                  });\n                }\n              },\n              'preload-hint': function preloadHint() {\n                // parts are always specifed before a segment\n                var segmentIndex = this.manifest.segments.length;\n                var hint = camelCaseKeys(entry.attributes);\n                var isPart = hint.type && hint.type === 'PART';\n                currentUri.preloadHints = currentUri.preloadHints || [];\n                currentUri.preloadHints.push(hint);\n\n                if (hint.byterange) {\n                  if (!hint.byterange.hasOwnProperty('offset')) {\n                    // use last part byterange end or zero if not a part.\n                    hint.byterange.offset = isPart ? lastPartByterangeEnd : 0;\n\n                    if (isPart) {\n                      lastPartByterangeEnd = hint.byterange.offset + hint.byterange.length;\n                    }\n                  }\n                }\n\n                var index = currentUri.preloadHints.length - 1;\n                this.warnOnMissingAttributes_(\"#EXT-X-PRELOAD-HINT #\" + index + \" for segment #\" + segmentIndex, entry.attributes, ['TYPE', 'URI']);\n\n                if (!hint.type) {\n                  return;\n                } // search through all preload hints except for the current one for\n                // a duplicate type.\n\n\n                for (var i = 0; i < currentUri.preloadHints.length - 1; i++) {\n                  var otherHint = currentUri.preloadHints[i];\n\n                  if (!otherHint.type) {\n                    continue;\n                  }\n\n                  if (otherHint.type === hint.type) {\n                    this.trigger('warn', {\n                      message: \"#EXT-X-PRELOAD-HINT #\" + index + \" for segment #\" + segmentIndex + \" has the same TYPE \" + hint.type + \" as preload hint #\" + i\n                    });\n                  }\n                }\n              },\n              'rendition-report': function renditionReport() {\n                var report = camelCaseKeys(entry.attributes);\n                this.manifest.renditionReports = this.manifest.renditionReports || [];\n                this.manifest.renditionReports.push(report);\n                var index = this.manifest.renditionReports.length - 1;\n                var required = ['LAST-MSN', 'URI'];\n\n                if (hasParts) {\n                  required.push('LAST-PART');\n                }\n\n                this.warnOnMissingAttributes_(\"#EXT-X-RENDITION-REPORT #\" + index, entry.attributes, required);\n              },\n              'part-inf': function partInf() {\n                this.manifest.partInf = camelCaseKeys(entry.attributes);\n                this.warnOnMissingAttributes_('#EXT-X-PART-INF', entry.attributes, ['PART-TARGET']);\n\n                if (this.manifest.partInf.partTarget) {\n                  this.manifest.partTargetDuration = this.manifest.partInf.partTarget;\n                }\n\n                setHoldBack.call(this, this.manifest);\n              }\n            })[entry.tagType] || noop).call(self);\n          },\n          uri: function uri() {\n            currentUri.uri = entry.uri;\n            uris.push(currentUri); // if no explicit duration was declared, use the target duration\n\n            if (this.manifest.targetDuration && !('duration' in currentUri)) {\n              this.trigger('warn', {\n                message: 'defaulting segment duration to the target duration'\n              });\n              currentUri.duration = this.manifest.targetDuration;\n            } // annotate with encryption information, if necessary\n\n\n            if (_key) {\n              currentUri.key = _key;\n            }\n\n            currentUri.timeline = currentTimeline; // annotate with initialization segment information, if necessary\n\n            if (currentMap) {\n              currentUri.map = currentMap;\n            } // reset the last byterange end as it needs to be 0 between parts\n\n\n            lastPartByterangeEnd = 0; // prepare for the next URI\n\n            currentUri = {};\n          },\n          comment: function comment() {// comments are not important for playback\n          },\n          custom: function custom() {\n            // if this is segment-level data attach the output to the segment\n            if (entry.segment) {\n              currentUri.custom = currentUri.custom || {};\n              currentUri.custom[entry.customType] = entry.data; // if this is manifest-level data attach to the top level manifest object\n            } else {\n              this.manifest.custom = this.manifest.custom || {};\n              this.manifest.custom[entry.customType] = entry.data;\n            }\n          }\n        })[entry.type].call(self);\n      });\n\n      return _this;\n    }\n\n    var _proto = Parser.prototype;\n\n    _proto.warnOnMissingAttributes_ = function warnOnMissingAttributes_(identifier, attributes, required) {\n      var missing = [];\n      required.forEach(function (key) {\n        if (!attributes.hasOwnProperty(key)) {\n          missing.push(key);\n        }\n      });\n\n      if (missing.length) {\n        this.trigger('warn', {\n          message: identifier + \" lacks required attribute(s): \" + missing.join(', ')\n        });\n      }\n    }\n    /**\n     * Parse the input string and update the manifest object.\n     *\n     * @param {string} chunk a potentially incomplete portion of the manifest\n     */\n    ;\n\n    _proto.push = function push(chunk) {\n      this.lineStream.push(chunk);\n    }\n    /**\n     * Flush any remaining input. This can be handy if the last line of an M3U8\n     * manifest did not contain a trailing newline but the file has been\n     * completely received.\n     */\n    ;\n\n    _proto.end = function end() {\n      // flush any buffered input\n      this.lineStream.push('\\n');\n      this.trigger('end');\n    }\n    /**\n     * Add an additional parser for non-standard tags\n     *\n     * @param {Object}   options              a map of options for the added parser\n     * @param {RegExp}   options.expression   a regular expression to match the custom header\n     * @param {string}   options.type         the type to register to the output\n     * @param {Function} [options.dataParser] function to parse the line into an object\n     * @param {boolean}  [options.segment]    should tag data be attached to the segment object\n     */\n    ;\n\n    _proto.addParser = function addParser(options) {\n      this.parseStream.addParser(options);\n    }\n    /**\n     * Add a custom header mapper\n     *\n     * @param {Object}   options\n     * @param {RegExp}   options.expression   a regular expression to match the custom header\n     * @param {Function} options.map          function to translate tag into a different tag\n     */\n    ;\n\n    _proto.addTagMapper = function addTagMapper(options) {\n      this.parseStream.addTagMapper(options);\n    };\n\n    return Parser;\n  }(Stream);\n\n  var regexs = {\n    // to determine mime types\n    mp4: /^(av0?1|avc0?[1234]|vp0?9|flac|opus|mp3|mp4a|mp4v|stpp.ttml.im1t)/,\n    webm: /^(vp0?[89]|av0?1|opus|vorbis)/,\n    ogg: /^(vp0?[89]|theora|flac|opus|vorbis)/,\n    // to determine if a codec is audio or video\n    video: /^(av0?1|avc0?[1234]|vp0?[89]|hvc1|hev1|theora|mp4v)/,\n    audio: /^(mp4a|flac|vorbis|opus|ac-[34]|ec-3|alac|mp3|speex|aac)/,\n    text: /^(stpp.ttml.im1t)/,\n    // mux.js support regex\n    muxerVideo: /^(avc0?1)/,\n    muxerAudio: /^(mp4a)/,\n    // match nothing as muxer does not support text right now.\n    // there cannot never be a character before the start of a string\n    // so this matches nothing.\n    muxerText: /a^/\n  };\n  var mediaTypes = ['video', 'audio', 'text'];\n  var upperMediaTypes = ['Video', 'Audio', 'Text'];\n  /**\n   * Replace the old apple-style `avc1.<dd>.<dd>` codec string with the standard\n   * `avc1.<hhhhhh>`\n   *\n   * @param {string} codec\n   *        Codec string to translate\n   * @return {string}\n   *         The translated codec string\n   */\n\n  var translateLegacyCodec = function translateLegacyCodec(codec) {\n    if (!codec) {\n      return codec;\n    }\n\n    return codec.replace(/avc1\\.(\\d+)\\.(\\d+)/i, function (orig, profile, avcLevel) {\n      var profileHex = ('00' + Number(profile).toString(16)).slice(-2);\n      var avcLevelHex = ('00' + Number(avcLevel).toString(16)).slice(-2);\n      return 'avc1.' + profileHex + '00' + avcLevelHex;\n    });\n  };\n  /**\n   * @typedef {Object} ParsedCodecInfo\n   * @property {number} codecCount\n   *           Number of codecs parsed\n   * @property {string} [videoCodec]\n   *           Parsed video codec (if found)\n   * @property {string} [videoObjectTypeIndicator]\n   *           Video object type indicator (if found)\n   * @property {string|null} audioProfile\n   *           Audio profile\n   */\n\n  /**\n   * Parses a codec string to retrieve the number of codecs specified, the video codec and\n   * object type indicator, and the audio profile.\n   *\n   * @param {string} [codecString]\n   *        The codec string to parse\n   * @return {ParsedCodecInfo}\n   *         Parsed codec info\n   */\n\n  var parseCodecs = function parseCodecs(codecString) {\n    if (codecString === void 0) {\n      codecString = '';\n    }\n\n    var codecs = codecString.split(',');\n    var result = [];\n    codecs.forEach(function (codec) {\n      codec = codec.trim();\n      var codecType;\n      mediaTypes.forEach(function (name) {\n        var match = regexs[name].exec(codec.toLowerCase());\n\n        if (!match || match.length <= 1) {\n          return;\n        }\n\n        codecType = name; // maintain codec case\n\n        var type = codec.substring(0, match[1].length);\n        var details = codec.replace(type, '');\n        result.push({\n          type: type,\n          details: details,\n          mediaType: name\n        });\n      });\n\n      if (!codecType) {\n        result.push({\n          type: codec,\n          details: '',\n          mediaType: 'unknown'\n        });\n      }\n    });\n    return result;\n  };\n  /**\n   * Returns a ParsedCodecInfo object for the default alternate audio playlist if there is\n   * a default alternate audio playlist for the provided audio group.\n   *\n   * @param {Object} master\n   *        The master playlist\n   * @param {string} audioGroupId\n   *        ID of the audio group for which to find the default codec info\n   * @return {ParsedCodecInfo}\n   *         Parsed codec info\n   */\n\n  var codecsFromDefault = function codecsFromDefault(master, audioGroupId) {\n    if (!master.mediaGroups.AUDIO || !audioGroupId) {\n      return null;\n    }\n\n    var audioGroup = master.mediaGroups.AUDIO[audioGroupId];\n\n    if (!audioGroup) {\n      return null;\n    }\n\n    for (var name in audioGroup) {\n      var audioType = audioGroup[name];\n\n      if (audioType[\"default\"] && audioType.playlists) {\n        // codec should be the same for all playlists within the audio type\n        return parseCodecs(audioType.playlists[0].attributes.CODECS);\n      }\n    }\n\n    return null;\n  };\n  var isAudioCodec = function isAudioCodec(codec) {\n    if (codec === void 0) {\n      codec = '';\n    }\n\n    return regexs.audio.test(codec.trim().toLowerCase());\n  };\n  var isTextCodec = function isTextCodec(codec) {\n    if (codec === void 0) {\n      codec = '';\n    }\n\n    return regexs.text.test(codec.trim().toLowerCase());\n  };\n  var getMimeForCodec = function getMimeForCodec(codecString) {\n    if (!codecString || typeof codecString !== 'string') {\n      return;\n    }\n\n    var codecs = codecString.toLowerCase().split(',').map(function (c) {\n      return translateLegacyCodec(c.trim());\n    }); // default to video type\n\n    var type = 'video'; // only change to audio type if the only codec we have is\n    // audio\n\n    if (codecs.length === 1 && isAudioCodec(codecs[0])) {\n      type = 'audio';\n    } else if (codecs.length === 1 && isTextCodec(codecs[0])) {\n      // text uses application/<container> for now\n      type = 'application';\n    } // default the container to mp4\n\n\n    var container = 'mp4'; // every codec must be able to go into the container\n    // for that container to be the correct one\n\n    if (codecs.every(function (c) {\n      return regexs.mp4.test(c);\n    })) {\n      container = 'mp4';\n    } else if (codecs.every(function (c) {\n      return regexs.webm.test(c);\n    })) {\n      container = 'webm';\n    } else if (codecs.every(function (c) {\n      return regexs.ogg.test(c);\n    })) {\n      container = 'ogg';\n    }\n\n    return type + \"/\" + container + \";codecs=\\\"\" + codecString + \"\\\"\";\n  };\n  var browserSupportsCodec = function browserSupportsCodec(codecString) {\n    if (codecString === void 0) {\n      codecString = '';\n    }\n\n    return window.MediaSource && window.MediaSource.isTypeSupported && window.MediaSource.isTypeSupported(getMimeForCodec(codecString)) || false;\n  };\n  var muxerSupportsCodec = function muxerSupportsCodec(codecString) {\n    if (codecString === void 0) {\n      codecString = '';\n    }\n\n    return codecString.toLowerCase().split(',').every(function (codec) {\n      codec = codec.trim(); // any match is supported.\n\n      for (var i = 0; i < upperMediaTypes.length; i++) {\n        var type = upperMediaTypes[i];\n\n        if (regexs[\"muxer\" + type].test(codec)) {\n          return true;\n        }\n      }\n\n      return false;\n    });\n  };\n  var DEFAULT_AUDIO_CODEC = 'mp4a.40.2';\n  var DEFAULT_VIDEO_CODEC = 'avc1.4d400d';\n\n  var MPEGURL_REGEX = /^(audio|video|application)\\/(x-|vnd\\.apple\\.)?mpegurl/i;\n  var DASH_REGEX = /^application\\/dash\\+xml/i;\n  /**\n   * Returns a string that describes the type of source based on a video source object's\n   * media type.\n   *\n   * @see {@link https://dev.w3.org/html5/pf-summary/video.html#dom-source-type|Source Type}\n   *\n   * @param {string} type\n   *        Video source object media type\n   * @return {('hls'|'dash'|'vhs-json'|null)}\n   *         VHS source type string\n   */\n\n  var simpleTypeFromSourceType = function simpleTypeFromSourceType(type) {\n    if (MPEGURL_REGEX.test(type)) {\n      return 'hls';\n    }\n\n    if (DASH_REGEX.test(type)) {\n      return 'dash';\n    } // Denotes the special case of a manifest object passed to http-streaming instead of a\n    // source URL.\n    //\n    // See https://en.wikipedia.org/wiki/Media_type for details on specifying media types.\n    //\n    // In this case, vnd stands for vendor, video.js for the organization, VHS for this\n    // project, and the +json suffix identifies the structure of the media type.\n\n\n    if (type === 'application/vnd.videojs.vhs+json') {\n      return 'vhs-json';\n    }\n\n    return null;\n  };\n\n  // const log2 = Math.log2 ? Math.log2 : (x) => (Math.log(x) / Math.log(2));\n  // we used to do this with log2 but BigInt does not support builtin math\n  // Math.ceil(log2(x));\n\n\n  var countBits = function countBits(x) {\n    return x.toString(2).length;\n  }; // count the number of whole bytes it would take to represent a number\n\n  var countBytes = function countBytes(x) {\n    return Math.ceil(countBits(x) / 8);\n  };\n  var isArrayBufferView = function isArrayBufferView(obj) {\n    if (ArrayBuffer.isView === 'function') {\n      return ArrayBuffer.isView(obj);\n    }\n\n    return obj && obj.buffer instanceof ArrayBuffer;\n  };\n  var isTypedArray = function isTypedArray(obj) {\n    return isArrayBufferView(obj);\n  };\n  var toUint8 = function toUint8(bytes) {\n    if (bytes instanceof Uint8Array) {\n      return bytes;\n    }\n\n    if (!Array.isArray(bytes) && !isTypedArray(bytes) && !(bytes instanceof ArrayBuffer)) {\n      // any non-number or NaN leads to empty uint8array\n      // eslint-disable-next-line\n      if (typeof bytes !== 'number' || typeof bytes === 'number' && bytes !== bytes) {\n        bytes = 0;\n      } else {\n        bytes = [bytes];\n      }\n    }\n\n    return new Uint8Array(bytes && bytes.buffer || bytes, bytes && bytes.byteOffset || 0, bytes && bytes.byteLength || 0);\n  };\n  var BigInt = window.BigInt || Number;\n  var BYTE_TABLE = [BigInt('0x1'), BigInt('0x100'), BigInt('0x10000'), BigInt('0x1000000'), BigInt('0x100000000'), BigInt('0x10000000000'), BigInt('0x1000000000000'), BigInt('0x100000000000000'), BigInt('0x10000000000000000')];\n  var bytesToNumber = function bytesToNumber(bytes, _temp) {\n    var _ref = _temp === void 0 ? {} : _temp,\n        _ref$signed = _ref.signed,\n        signed = _ref$signed === void 0 ? false : _ref$signed,\n        _ref$le = _ref.le,\n        le = _ref$le === void 0 ? false : _ref$le;\n\n    bytes = toUint8(bytes);\n    var fn = le ? 'reduce' : 'reduceRight';\n    var obj = bytes[fn] ? bytes[fn] : Array.prototype[fn];\n    var number = obj.call(bytes, function (total, _byte, i) {\n      var exponent = le ? i : Math.abs(i + 1 - bytes.length);\n      return total + BigInt(_byte) * BYTE_TABLE[exponent];\n    }, BigInt(0));\n\n    if (signed) {\n      var max = BYTE_TABLE[bytes.length] / BigInt(2) - BigInt(1);\n      number = BigInt(number);\n\n      if (number > max) {\n        number -= max;\n        number -= max;\n        number -= BigInt(2);\n      }\n    }\n\n    return Number(number);\n  };\n  var numberToBytes = function numberToBytes(number, _temp2) {\n    var _ref2 = _temp2 === void 0 ? {} : _temp2,\n        _ref2$le = _ref2.le,\n        le = _ref2$le === void 0 ? false : _ref2$le; // eslint-disable-next-line\n\n\n    if (typeof number !== 'bigint' && typeof number !== 'number' || typeof number === 'number' && number !== number) {\n      number = 0;\n    }\n\n    number = BigInt(number);\n    var byteCount = countBytes(number);\n    var bytes = new Uint8Array(new ArrayBuffer(byteCount));\n\n    for (var i = 0; i < byteCount; i++) {\n      var byteIndex = le ? i : Math.abs(i + 1 - bytes.length);\n      bytes[byteIndex] = Number(number / BYTE_TABLE[i] & BigInt(0xFF));\n\n      if (number < 0) {\n        bytes[byteIndex] = Math.abs(~bytes[byteIndex]);\n        bytes[byteIndex] -= i === 0 ? 1 : 2;\n      }\n    }\n\n    return bytes;\n  };\n  var stringToBytes = function stringToBytes(string, stringIsBytes) {\n    if (typeof string !== 'string' && string && typeof string.toString === 'function') {\n      string = string.toString();\n    }\n\n    if (typeof string !== 'string') {\n      return new Uint8Array();\n    } // If the string already is bytes, we don't have to do this\n    // otherwise we do this so that we split multi length characters\n    // into individual bytes\n\n\n    if (!stringIsBytes) {\n      string = unescape(encodeURIComponent(string));\n    }\n\n    var view = new Uint8Array(string.length);\n\n    for (var i = 0; i < string.length; i++) {\n      view[i] = string.charCodeAt(i);\n    }\n\n    return view;\n  };\n  var concatTypedArrays = function concatTypedArrays() {\n    for (var _len = arguments.length, buffers = new Array(_len), _key = 0; _key < _len; _key++) {\n      buffers[_key] = arguments[_key];\n    }\n\n    buffers = buffers.filter(function (b) {\n      return b && (b.byteLength || b.length) && typeof b !== 'string';\n    });\n\n    if (buffers.length <= 1) {\n      // for 0 length we will return empty uint8\n      // for 1 length we return the first uint8\n      return toUint8(buffers[0]);\n    }\n\n    var totalLen = buffers.reduce(function (total, buf, i) {\n      return total + (buf.byteLength || buf.length);\n    }, 0);\n    var tempBuffer = new Uint8Array(totalLen);\n    var offset = 0;\n    buffers.forEach(function (buf) {\n      buf = toUint8(buf);\n      tempBuffer.set(buf, offset);\n      offset += buf.byteLength;\n    });\n    return tempBuffer;\n  };\n  /**\n   * Check if the bytes \"b\" are contained within bytes \"a\".\n   *\n   * @param {Uint8Array|Array} a\n   *        Bytes to check in\n   *\n   * @param {Uint8Array|Array} b\n   *        Bytes to check for\n   *\n   * @param {Object} options\n   *        options\n   *\n   * @param {Array|Uint8Array} [offset=0]\n   *        offset to use when looking at bytes in a\n   *\n   * @param {Array|Uint8Array} [mask=[]]\n   *        mask to use on bytes before comparison.\n   *\n   * @return {boolean}\n   *         If all bytes in b are inside of a, taking into account\n   *         bit masks.\n   */\n\n  var bytesMatch = function bytesMatch(a, b, _temp3) {\n    var _ref3 = _temp3 === void 0 ? {} : _temp3,\n        _ref3$offset = _ref3.offset,\n        offset = _ref3$offset === void 0 ? 0 : _ref3$offset,\n        _ref3$mask = _ref3.mask,\n        mask = _ref3$mask === void 0 ? [] : _ref3$mask;\n\n    a = toUint8(a);\n    b = toUint8(b); // ie 11 does not support uint8 every\n\n    var fn = b.every ? b.every : Array.prototype.every;\n    return b.length && a.length - offset >= b.length && // ie 11 doesn't support every on uin8\n    fn.call(b, function (bByte, i) {\n      var aByte = mask[i] ? mask[i] & a[offset + i] : a[offset + i];\n      return bByte === aByte;\n    });\n  };\n\n  var DEFAULT_LOCATION = 'http://example.com';\n\n  var resolveUrl$1 = function resolveUrl(baseUrl, relativeUrl) {\n    // return early if we don't need to resolve\n    if (/^[a-z]+:/i.test(relativeUrl)) {\n      return relativeUrl;\n    } // if baseUrl is a data URI, ignore it and resolve everything relative to window.location\n\n\n    if (/^data:/.test(baseUrl)) {\n      baseUrl = window.location && window.location.href || '';\n    } // IE11 supports URL but not the URL constructor\n    // feature detect the behavior we want\n\n\n    var nativeURL = typeof window.URL === 'function';\n    var protocolLess = /^\\/\\//.test(baseUrl); // remove location if window.location isn't available (i.e. we're in node)\n    // and if baseUrl isn't an absolute url\n\n    var removeLocation = !window.location && !/\\/\\//i.test(baseUrl); // if the base URL is relative then combine with the current location\n\n    if (nativeURL) {\n      baseUrl = new window.URL(baseUrl, window.location || DEFAULT_LOCATION);\n    } else if (!/\\/\\//i.test(baseUrl)) {\n      baseUrl = urlToolkit.buildAbsoluteURL(window.location && window.location.href || '', baseUrl);\n    }\n\n    if (nativeURL) {\n      var newUrl = new URL(relativeUrl, baseUrl); // if we're a protocol-less url, remove the protocol\n      // and if we're location-less, remove the location\n      // otherwise, return the url unmodified\n\n      if (removeLocation) {\n        return newUrl.href.slice(DEFAULT_LOCATION.length);\n      } else if (protocolLess) {\n        return newUrl.href.slice(newUrl.protocol.length);\n      }\n\n      return newUrl.href;\n    }\n\n    return urlToolkit.buildAbsoluteURL(baseUrl, relativeUrl);\n  };\n\n  /**\n   * Loops through all supported media groups in master and calls the provided\n   * callback for each group\n   *\n   * @param {Object} master\n   *        The parsed master manifest object\n   * @param {string[]} groups\n   *        The media groups to call the callback for\n   * @param {Function} callback\n   *        Callback to call for each media group\n   */\n  var forEachMediaGroup$1 = function forEachMediaGroup(master, groups, callback) {\n    groups.forEach(function (mediaType) {\n      for (var groupKey in master.mediaGroups[mediaType]) {\n        for (var labelKey in master.mediaGroups[mediaType][groupKey]) {\n          var mediaProperties = master.mediaGroups[mediaType][groupKey][labelKey];\n          callback(mediaProperties, mediaType, groupKey, labelKey);\n        }\n      }\n    });\n  };\n\n  var atob = function atob(s) {\n    return window.atob ? window.atob(s) : Buffer.from(s, 'base64').toString('binary');\n  };\n\n  function decodeB64ToUint8Array(b64Text) {\n    var decodedString = atob(b64Text);\n    var array = new Uint8Array(decodedString.length);\n\n    for (var i = 0; i < decodedString.length; i++) {\n      array[i] = decodedString.charCodeAt(i);\n    }\n\n    return array;\n  }\n\n  /**\n   * \"Shallow freezes\" an object to render it immutable.\n   * Uses `Object.freeze` if available,\n   * otherwise the immutability is only in the type.\n   *\n   * Is used to create \"enum like\" objects.\n   *\n   * @template T\n   * @param {T} object the object to freeze\n   * @param {Pick<ObjectConstructor, 'freeze'> = Object} oc `Object` by default,\n   * \t\t\t\tallows to inject custom object constructor for tests\n   * @returns {Readonly<T>}\n   *\n   * @see https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/freeze\n   */\n\n  function freeze(object, oc) {\n    if (oc === undefined) {\n      oc = Object;\n    }\n\n    return oc && typeof oc.freeze === 'function' ? oc.freeze(object) : object;\n  }\n  /**\n   * All mime types that are allowed as input to `DOMParser.parseFromString`\n   *\n   * @see https://developer.mozilla.org/en-US/docs/Web/API/DOMParser/parseFromString#Argument02 MDN\n   * @see https://html.spec.whatwg.org/multipage/dynamic-markup-insertion.html#domparsersupportedtype WHATWG HTML Spec\n   * @see DOMParser.prototype.parseFromString\n   */\n\n\n  var MIME_TYPE = freeze({\n    /**\n     * `text/html`, the only mime type that triggers treating an XML document as HTML.\n     *\n     * @see DOMParser.SupportedType.isHTML\n     * @see https://www.iana.org/assignments/media-types/text/html IANA MimeType registration\n     * @see https://en.wikipedia.org/wiki/HTML Wikipedia\n     * @see https://developer.mozilla.org/en-US/docs/Web/API/DOMParser/parseFromString MDN\n     * @see https://html.spec.whatwg.org/multipage/dynamic-markup-insertion.html#dom-domparser-parsefromstring WHATWG HTML Spec\n     */\n    HTML: 'text/html',\n\n    /**\n     * Helper method to check a mime type if it indicates an HTML document\n     *\n     * @param {string} [value]\n     * @returns {boolean}\n     *\n     * @see https://www.iana.org/assignments/media-types/text/html IANA MimeType registration\n     * @see https://en.wikipedia.org/wiki/HTML Wikipedia\n     * @see https://developer.mozilla.org/en-US/docs/Web/API/DOMParser/parseFromString MDN\n     * @see https://html.spec.whatwg.org/multipage/dynamic-markup-insertion.html#dom-domparser-parsefromstring \t */\n    isHTML: function isHTML(value) {\n      return value === MIME_TYPE.HTML;\n    },\n\n    /**\n     * `application/xml`, the standard mime type for XML documents.\n     *\n     * @see https://www.iana.org/assignments/media-types/application/xml IANA MimeType registration\n     * @see https://tools.ietf.org/html/rfc7303#section-9.1 RFC 7303\n     * @see https://en.wikipedia.org/wiki/XML_and_MIME Wikipedia\n     */\n    XML_APPLICATION: 'application/xml',\n\n    /**\n     * `text/html`, an alias for `application/xml`.\n     *\n     * @see https://tools.ietf.org/html/rfc7303#section-9.2 RFC 7303\n     * @see https://www.iana.org/assignments/media-types/text/xml IANA MimeType registration\n     * @see https://en.wikipedia.org/wiki/XML_and_MIME Wikipedia\n     */\n    XML_TEXT: 'text/xml',\n\n    /**\n     * `application/xhtml+xml`, indicates an XML document that has the default HTML namespace,\n     * but is parsed as an XML document.\n     *\n     * @see https://www.iana.org/assignments/media-types/application/xhtml+xml IANA MimeType registration\n     * @see https://dom.spec.whatwg.org/#dom-domimplementation-createdocument WHATWG DOM Spec\n     * @see https://en.wikipedia.org/wiki/XHTML Wikipedia\n     */\n    XML_XHTML_APPLICATION: 'application/xhtml+xml',\n\n    /**\n     * `image/svg+xml`,\n     *\n     * @see https://www.iana.org/assignments/media-types/image/svg+xml IANA MimeType registration\n     * @see https://www.w3.org/TR/SVG11/ W3C SVG 1.1\n     * @see https://en.wikipedia.org/wiki/Scalable_Vector_Graphics Wikipedia\n     */\n    XML_SVG_IMAGE: 'image/svg+xml'\n  });\n  /**\n   * Namespaces that are used in this code base.\n   *\n   * @see http://www.w3.org/TR/REC-xml-names\n   */\n\n  var NAMESPACE$3 = freeze({\n    /**\n     * The XHTML namespace.\n     *\n     * @see http://www.w3.org/1999/xhtml\n     */\n    HTML: 'http://www.w3.org/1999/xhtml',\n\n    /**\n     * Checks if `uri` equals `NAMESPACE.HTML`.\n     *\n     * @param {string} [uri]\n     *\n     * @see NAMESPACE.HTML\n     */\n    isHTML: function isHTML(uri) {\n      return uri === NAMESPACE$3.HTML;\n    },\n\n    /**\n     * The SVG namespace.\n     *\n     * @see http://www.w3.org/2000/svg\n     */\n    SVG: 'http://www.w3.org/2000/svg',\n\n    /**\n     * The `xml:` namespace.\n     *\n     * @see http://www.w3.org/XML/1998/namespace\n     */\n    XML: 'http://www.w3.org/XML/1998/namespace',\n\n    /**\n     * The `xmlns:` namespace\n     *\n     * @see https://www.w3.org/2000/xmlns/\n     */\n    XMLNS: 'http://www.w3.org/2000/xmlns/'\n  });\n  var freeze_1 = freeze;\n  var MIME_TYPE_1 = MIME_TYPE;\n  var NAMESPACE_1 = NAMESPACE$3;\n  var conventions = {\n    freeze: freeze_1,\n    MIME_TYPE: MIME_TYPE_1,\n    NAMESPACE: NAMESPACE_1\n  };\n\n  var NAMESPACE$2 = conventions.NAMESPACE;\n  /**\n   * A prerequisite for `[].filter`, to drop elements that are empty\n   * @param {string} input\n   * @returns {boolean}\n   */\n\n  function notEmptyString(input) {\n    return input !== '';\n  }\n  /**\n   * @see https://infra.spec.whatwg.org/#split-on-ascii-whitespace\n   * @see https://infra.spec.whatwg.org/#ascii-whitespace\n   *\n   * @param {string} input\n   * @returns {string[]} (can be empty)\n   */\n\n\n  function splitOnASCIIWhitespace(input) {\n    // U+0009 TAB, U+000A LF, U+000C FF, U+000D CR, U+0020 SPACE\n    return input ? input.split(/[\\t\\n\\f\\r ]+/).filter(notEmptyString) : [];\n  }\n  /**\n   * Adds element as a key to current if it is not already present.\n   *\n   * @param {Record<string, boolean | undefined>} current\n   * @param {string} element\n   * @returns {Record<string, boolean | undefined>}\n   */\n\n\n  function orderedSetReducer(current, element) {\n    if (!current.hasOwnProperty(element)) {\n      current[element] = true;\n    }\n\n    return current;\n  }\n  /**\n   * @see https://infra.spec.whatwg.org/#ordered-set\n   * @param {string} input\n   * @returns {string[]}\n   */\n\n\n  function toOrderedSet(input) {\n    if (!input) return [];\n    var list = splitOnASCIIWhitespace(input);\n    return Object.keys(list.reduce(orderedSetReducer, {}));\n  }\n  /**\n   * Uses `list.indexOf` to implement something like `Array.prototype.includes`,\n   * which we can not rely on being available.\n   *\n   * @param {any[]} list\n   * @returns {function(any): boolean}\n   */\n\n\n  function arrayIncludes(list) {\n    return function (element) {\n      return list && list.indexOf(element) !== -1;\n    };\n  }\n\n  function copy(src, dest) {\n    for (var p in src) {\n      dest[p] = src[p];\n    }\n  }\n  /**\n  ^\\w+\\.prototype\\.([_\\w]+)\\s*=\\s*((?:.*\\{\\s*?[\\r\\n][\\s\\S]*?^})|\\S.*?(?=[;\\r\\n]));?\n  ^\\w+\\.prototype\\.([_\\w]+)\\s*=\\s*(\\S.*?(?=[;\\r\\n]));?\n   */\n\n\n  function _extends(Class, Super) {\n    var pt = Class.prototype;\n\n    if (!(pt instanceof Super)) {\n      var t = function t() {};\n      t.prototype = Super.prototype;\n      t = new t();\n      copy(pt, t);\n      Class.prototype = pt = t;\n    }\n\n    if (pt.constructor != Class) {\n      if (typeof Class != 'function') {\n        console.error(\"unknown Class:\" + Class);\n      }\n\n      pt.constructor = Class;\n    }\n  } // Node Types\n\n\n  var NodeType = {};\n  var ELEMENT_NODE = NodeType.ELEMENT_NODE = 1;\n  var ATTRIBUTE_NODE = NodeType.ATTRIBUTE_NODE = 2;\n  var TEXT_NODE = NodeType.TEXT_NODE = 3;\n  var CDATA_SECTION_NODE = NodeType.CDATA_SECTION_NODE = 4;\n  var ENTITY_REFERENCE_NODE = NodeType.ENTITY_REFERENCE_NODE = 5;\n  var ENTITY_NODE = NodeType.ENTITY_NODE = 6;\n  var PROCESSING_INSTRUCTION_NODE = NodeType.PROCESSING_INSTRUCTION_NODE = 7;\n  var COMMENT_NODE = NodeType.COMMENT_NODE = 8;\n  var DOCUMENT_NODE = NodeType.DOCUMENT_NODE = 9;\n  var DOCUMENT_TYPE_NODE = NodeType.DOCUMENT_TYPE_NODE = 10;\n  var DOCUMENT_FRAGMENT_NODE = NodeType.DOCUMENT_FRAGMENT_NODE = 11;\n  var NOTATION_NODE = NodeType.NOTATION_NODE = 12; // ExceptionCode\n\n  var ExceptionCode = {};\n  var ExceptionMessage = {};\n  ExceptionCode.INDEX_SIZE_ERR = (ExceptionMessage[1] = \"Index size error\", 1);\n  ExceptionCode.DOMSTRING_SIZE_ERR = (ExceptionMessage[2] = \"DOMString size error\", 2);\n  var HIERARCHY_REQUEST_ERR = ExceptionCode.HIERARCHY_REQUEST_ERR = (ExceptionMessage[3] = \"Hierarchy request error\", 3);\n  ExceptionCode.WRONG_DOCUMENT_ERR = (ExceptionMessage[4] = \"Wrong document\", 4);\n  ExceptionCode.INVALID_CHARACTER_ERR = (ExceptionMessage[5] = \"Invalid character\", 5);\n  ExceptionCode.NO_DATA_ALLOWED_ERR = (ExceptionMessage[6] = \"No data allowed\", 6);\n  ExceptionCode.NO_MODIFICATION_ALLOWED_ERR = (ExceptionMessage[7] = \"No modification allowed\", 7);\n  var NOT_FOUND_ERR = ExceptionCode.NOT_FOUND_ERR = (ExceptionMessage[8] = \"Not found\", 8);\n  ExceptionCode.NOT_SUPPORTED_ERR = (ExceptionMessage[9] = \"Not supported\", 9);\n  var INUSE_ATTRIBUTE_ERR = ExceptionCode.INUSE_ATTRIBUTE_ERR = (ExceptionMessage[10] = \"Attribute in use\", 10); //level2\n\n  ExceptionCode.INVALID_STATE_ERR = (ExceptionMessage[11] = \"Invalid state\", 11);\n  ExceptionCode.SYNTAX_ERR = (ExceptionMessage[12] = \"Syntax error\", 12);\n  ExceptionCode.INVALID_MODIFICATION_ERR = (ExceptionMessage[13] = \"Invalid modification\", 13);\n  ExceptionCode.NAMESPACE_ERR = (ExceptionMessage[14] = \"Invalid namespace\", 14);\n  ExceptionCode.INVALID_ACCESS_ERR = (ExceptionMessage[15] = \"Invalid access\", 15);\n  /**\n   * DOM Level 2\n   * Object DOMException\n   * @see http://www.w3.org/TR/2000/REC-DOM-Level-2-Core-20001113/ecma-script-binding.html\n   * @see http://www.w3.org/TR/REC-DOM-Level-1/ecma-script-language-binding.html\n   */\n\n  function DOMException(code, message) {\n    if (message instanceof Error) {\n      var error = message;\n    } else {\n      error = this;\n      Error.call(this, ExceptionMessage[code]);\n      this.message = ExceptionMessage[code];\n      if (Error.captureStackTrace) Error.captureStackTrace(this, DOMException);\n    }\n\n    error.code = code;\n    if (message) this.message = this.message + \": \" + message;\n    return error;\n  }\n  DOMException.prototype = Error.prototype;\n  copy(ExceptionCode, DOMException);\n  /**\n   * @see http://www.w3.org/TR/2000/REC-DOM-Level-2-Core-20001113/core.html#ID-536297177\n   * The NodeList interface provides the abstraction of an ordered collection of nodes, without defining or constraining how this collection is implemented. NodeList objects in the DOM are live.\n   * The items in the NodeList are accessible via an integral index, starting from 0.\n   */\n\n  function NodeList() {}\n  NodeList.prototype = {\n    /**\n     * The number of nodes in the list. The range of valid child node indices is 0 to length-1 inclusive.\n     * @standard level1\n     */\n    length: 0,\n\n    /**\n     * Returns the indexth item in the collection. If index is greater than or equal to the number of nodes in the list, this returns null.\n     * @standard level1\n     * @param index  unsigned long \n     *   Index into the collection.\n     * @return Node\n     * \tThe node at the indexth position in the NodeList, or null if that is not a valid index. \n     */\n    item: function item(index) {\n      return this[index] || null;\n    },\n    toString: function toString(isHTML, nodeFilter) {\n      for (var buf = [], i = 0; i < this.length; i++) {\n        serializeToString(this[i], buf, isHTML, nodeFilter);\n      }\n\n      return buf.join('');\n    }\n  };\n\n  function LiveNodeList(node, refresh) {\n    this._node = node;\n    this._refresh = refresh;\n\n    _updateLiveList(this);\n  }\n\n  function _updateLiveList(list) {\n    var inc = list._node._inc || list._node.ownerDocument._inc;\n\n    if (list._inc != inc) {\n      var ls = list._refresh(list._node); //console.log(ls.length)\n\n\n      __set__(list, 'length', ls.length);\n\n      copy(ls, list);\n      list._inc = inc;\n    }\n  }\n\n  LiveNodeList.prototype.item = function (i) {\n    _updateLiveList(this);\n\n    return this[i];\n  };\n\n  _extends(LiveNodeList, NodeList);\n  /**\n   * Objects implementing the NamedNodeMap interface are used\n   * to represent collections of nodes that can be accessed by name.\n   * Note that NamedNodeMap does not inherit from NodeList;\n   * NamedNodeMaps are not maintained in any particular order.\n   * Objects contained in an object implementing NamedNodeMap may also be accessed by an ordinal index,\n   * but this is simply to allow convenient enumeration of the contents of a NamedNodeMap,\n   * and does not imply that the DOM specifies an order to these Nodes.\n   * NamedNodeMap objects in the DOM are live.\n   * used for attributes or DocumentType entities \n   */\n\n\n  function NamedNodeMap() {}\n\n  function _findNodeIndex(list, node) {\n    var i = list.length;\n\n    while (i--) {\n      if (list[i] === node) {\n        return i;\n      }\n    }\n  }\n\n  function _addNamedNode(el, list, newAttr, oldAttr) {\n    if (oldAttr) {\n      list[_findNodeIndex(list, oldAttr)] = newAttr;\n    } else {\n      list[list.length++] = newAttr;\n    }\n\n    if (el) {\n      newAttr.ownerElement = el;\n      var doc = el.ownerDocument;\n\n      if (doc) {\n        oldAttr && _onRemoveAttribute(doc, el, oldAttr);\n\n        _onAddAttribute(doc, el, newAttr);\n      }\n    }\n  }\n\n  function _removeNamedNode(el, list, attr) {\n    //console.log('remove attr:'+attr)\n    var i = _findNodeIndex(list, attr);\n\n    if (i >= 0) {\n      var lastIndex = list.length - 1;\n\n      while (i < lastIndex) {\n        list[i] = list[++i];\n      }\n\n      list.length = lastIndex;\n\n      if (el) {\n        var doc = el.ownerDocument;\n\n        if (doc) {\n          _onRemoveAttribute(doc, el, attr);\n\n          attr.ownerElement = null;\n        }\n      }\n    } else {\n      throw DOMException(NOT_FOUND_ERR, new Error(el.tagName + '@' + attr));\n    }\n  }\n\n  NamedNodeMap.prototype = {\n    length: 0,\n    item: NodeList.prototype.item,\n    getNamedItem: function getNamedItem(key) {\n      //\t\tif(key.indexOf(':')>0 || key == 'xmlns'){\n      //\t\t\treturn null;\n      //\t\t}\n      //console.log()\n      var i = this.length;\n\n      while (i--) {\n        var attr = this[i]; //console.log(attr.nodeName,key)\n\n        if (attr.nodeName == key) {\n          return attr;\n        }\n      }\n    },\n    setNamedItem: function setNamedItem(attr) {\n      var el = attr.ownerElement;\n\n      if (el && el != this._ownerElement) {\n        throw new DOMException(INUSE_ATTRIBUTE_ERR);\n      }\n\n      var oldAttr = this.getNamedItem(attr.nodeName);\n\n      _addNamedNode(this._ownerElement, this, attr, oldAttr);\n\n      return oldAttr;\n    },\n\n    /* returns Node */\n    setNamedItemNS: function setNamedItemNS(attr) {\n      // raises: WRONG_DOCUMENT_ERR,NO_MODIFICATION_ALLOWED_ERR,INUSE_ATTRIBUTE_ERR\n      var el = attr.ownerElement,\n          oldAttr;\n\n      if (el && el != this._ownerElement) {\n        throw new DOMException(INUSE_ATTRIBUTE_ERR);\n      }\n\n      oldAttr = this.getNamedItemNS(attr.namespaceURI, attr.localName);\n\n      _addNamedNode(this._ownerElement, this, attr, oldAttr);\n\n      return oldAttr;\n    },\n\n    /* returns Node */\n    removeNamedItem: function removeNamedItem(key) {\n      var attr = this.getNamedItem(key);\n\n      _removeNamedNode(this._ownerElement, this, attr);\n\n      return attr;\n    },\n    // raises: NOT_FOUND_ERR,NO_MODIFICATION_ALLOWED_ERR\n    //for level2\n    removeNamedItemNS: function removeNamedItemNS(namespaceURI, localName) {\n      var attr = this.getNamedItemNS(namespaceURI, localName);\n\n      _removeNamedNode(this._ownerElement, this, attr);\n\n      return attr;\n    },\n    getNamedItemNS: function getNamedItemNS(namespaceURI, localName) {\n      var i = this.length;\n\n      while (i--) {\n        var node = this[i];\n\n        if (node.localName == localName && node.namespaceURI == namespaceURI) {\n          return node;\n        }\n      }\n\n      return null;\n    }\n  };\n  /**\n   * The DOMImplementation interface represents an object providing methods\n   * which are not dependent on any particular document.\n   * Such an object is returned by the `Document.implementation` property.\n   *\n   * __The individual methods describe the differences compared to the specs.__\n   *\n   * @constructor\n   *\n   * @see https://developer.mozilla.org/en-US/docs/Web/API/DOMImplementation MDN\n   * @see https://www.w3.org/TR/REC-DOM-Level-1/level-one-core.html#ID-102161490 DOM Level 1 Core (Initial)\n   * @see https://www.w3.org/TR/DOM-Level-2-Core/core.html#ID-102161490 DOM Level 2 Core\n   * @see https://www.w3.org/TR/DOM-Level-3-Core/core.html#ID-102161490 DOM Level 3 Core\n   * @see https://dom.spec.whatwg.org/#domimplementation DOM Living Standard\n   */\n\n  function DOMImplementation$1() {}\n\n  DOMImplementation$1.prototype = {\n    /**\n     * The DOMImplementation.hasFeature() method returns a Boolean flag indicating if a given feature is supported.\n     * The different implementations fairly diverged in what kind of features were reported.\n     * The latest version of the spec settled to force this method to always return true, where the functionality was accurate and in use.\n     *\n     * @deprecated It is deprecated and modern browsers return true in all cases.\n     *\n     * @param {string} feature\n     * @param {string} [version]\n     * @returns {boolean} always true\n     *\n     * @see https://developer.mozilla.org/en-US/docs/Web/API/DOMImplementation/hasFeature MDN\n     * @see https://www.w3.org/TR/REC-DOM-Level-1/level-one-core.html#ID-5CED94D7 DOM Level 1 Core\n     * @see https://dom.spec.whatwg.org/#dom-domimplementation-hasfeature DOM Living Standard\n     */\n    hasFeature: function hasFeature(feature, version) {\n      return true;\n    },\n\n    /**\n     * Creates an XML Document object of the specified type with its document element.\n     *\n     * __It behaves slightly different from the description in the living standard__:\n     * - There is no interface/class `XMLDocument`, it returns a `Document` instance.\n     * - `contentType`, `encoding`, `mode`, `origin`, `url` fields are currently not declared.\n     * - this implementation is not validating names or qualified names\n     *   (when parsing XML strings, the SAX parser takes care of that)\n     *\n     * @param {string|null} namespaceURI\n     * @param {string} qualifiedName\n     * @param {DocumentType=null} doctype\n     * @returns {Document}\n     *\n     * @see https://developer.mozilla.org/en-US/docs/Web/API/DOMImplementation/createDocument MDN\n     * @see https://www.w3.org/TR/DOM-Level-2-Core/core.html#Level-2-Core-DOM-createDocument DOM Level 2 Core (initial)\n     * @see https://dom.spec.whatwg.org/#dom-domimplementation-createdocument  DOM Level 2 Core\n     *\n     * @see https://dom.spec.whatwg.org/#validate-and-extract DOM: Validate and extract\n     * @see https://www.w3.org/TR/xml/#NT-NameStartChar XML Spec: Names\n     * @see https://www.w3.org/TR/xml-names/#ns-qualnames XML Namespaces: Qualified names\n     */\n    createDocument: function createDocument(namespaceURI, qualifiedName, doctype) {\n      var doc = new Document();\n      doc.implementation = this;\n      doc.childNodes = new NodeList();\n      doc.doctype = doctype || null;\n\n      if (doctype) {\n        doc.appendChild(doctype);\n      }\n\n      if (qualifiedName) {\n        var root = doc.createElementNS(namespaceURI, qualifiedName);\n        doc.appendChild(root);\n      }\n\n      return doc;\n    },\n\n    /**\n     * Returns a doctype, with the given `qualifiedName`, `publicId`, and `systemId`.\n     *\n     * __This behavior is slightly different from the in the specs__:\n     * - this implementation is not validating names or qualified names\n     *   (when parsing XML strings, the SAX parser takes care of that)\n     *\n     * @param {string} qualifiedName\n     * @param {string} [publicId]\n     * @param {string} [systemId]\n     * @returns {DocumentType} which can either be used with `DOMImplementation.createDocument` upon document creation\n     * \t\t\t\t  or can be put into the document via methods like `Node.insertBefore()` or `Node.replaceChild()`\n     *\n     * @see https://developer.mozilla.org/en-US/docs/Web/API/DOMImplementation/createDocumentType MDN\n     * @see https://www.w3.org/TR/DOM-Level-2-Core/core.html#Level-2-Core-DOM-createDocType DOM Level 2 Core\n     * @see https://dom.spec.whatwg.org/#dom-domimplementation-createdocumenttype DOM Living Standard\n     *\n     * @see https://dom.spec.whatwg.org/#validate-and-extract DOM: Validate and extract\n     * @see https://www.w3.org/TR/xml/#NT-NameStartChar XML Spec: Names\n     * @see https://www.w3.org/TR/xml-names/#ns-qualnames XML Namespaces: Qualified names\n     */\n    createDocumentType: function createDocumentType(qualifiedName, publicId, systemId) {\n      var node = new DocumentType();\n      node.name = qualifiedName;\n      node.nodeName = qualifiedName;\n      node.publicId = publicId || '';\n      node.systemId = systemId || '';\n      return node;\n    }\n  };\n  /**\n   * @see http://www.w3.org/TR/2000/REC-DOM-Level-2-Core-20001113/core.html#ID-1950641247\n   */\n\n  function Node() {}\n  Node.prototype = {\n    firstChild: null,\n    lastChild: null,\n    previousSibling: null,\n    nextSibling: null,\n    attributes: null,\n    parentNode: null,\n    childNodes: null,\n    ownerDocument: null,\n    nodeValue: null,\n    namespaceURI: null,\n    prefix: null,\n    localName: null,\n    // Modified in DOM Level 2:\n    insertBefore: function insertBefore(newChild, refChild) {\n      //raises \n      return _insertBefore(this, newChild, refChild);\n    },\n    replaceChild: function replaceChild(newChild, oldChild) {\n      //raises \n      this.insertBefore(newChild, oldChild);\n\n      if (oldChild) {\n        this.removeChild(oldChild);\n      }\n    },\n    removeChild: function removeChild(oldChild) {\n      return _removeChild(this, oldChild);\n    },\n    appendChild: function appendChild(newChild) {\n      return this.insertBefore(newChild, null);\n    },\n    hasChildNodes: function hasChildNodes() {\n      return this.firstChild != null;\n    },\n    cloneNode: function cloneNode(deep) {\n      return _cloneNode(this.ownerDocument || this, this, deep);\n    },\n    // Modified in DOM Level 2:\n    normalize: function normalize() {\n      var child = this.firstChild;\n\n      while (child) {\n        var next = child.nextSibling;\n\n        if (next && next.nodeType == TEXT_NODE && child.nodeType == TEXT_NODE) {\n          this.removeChild(next);\n          child.appendData(next.data);\n        } else {\n          child.normalize();\n          child = next;\n        }\n      }\n    },\n    // Introduced in DOM Level 2:\n    isSupported: function isSupported(feature, version) {\n      return this.ownerDocument.implementation.hasFeature(feature, version);\n    },\n    // Introduced in DOM Level 2:\n    hasAttributes: function hasAttributes() {\n      return this.attributes.length > 0;\n    },\n\n    /**\n     * Look up the prefix associated to the given namespace URI, starting from this node.\n     * **The default namespace declarations are ignored by this method.**\n     * See Namespace Prefix Lookup for details on the algorithm used by this method.\n     *\n     * _Note: The implementation seems to be incomplete when compared to the algorithm described in the specs._\n     *\n     * @param {string | null} namespaceURI\n     * @returns {string | null}\n     * @see https://www.w3.org/TR/DOM-Level-3-Core/core.html#Node3-lookupNamespacePrefix\n     * @see https://www.w3.org/TR/DOM-Level-3-Core/namespaces-algorithms.html#lookupNamespacePrefixAlgo\n     * @see https://dom.spec.whatwg.org/#dom-node-lookupprefix\n     * @see https://github.com/xmldom/xmldom/issues/322\n     */\n    lookupPrefix: function lookupPrefix(namespaceURI) {\n      var el = this;\n\n      while (el) {\n        var map = el._nsMap; //console.dir(map)\n\n        if (map) {\n          for (var n in map) {\n            if (map[n] == namespaceURI) {\n              return n;\n            }\n          }\n        }\n\n        el = el.nodeType == ATTRIBUTE_NODE ? el.ownerDocument : el.parentNode;\n      }\n\n      return null;\n    },\n    // Introduced in DOM Level 3:\n    lookupNamespaceURI: function lookupNamespaceURI(prefix) {\n      var el = this;\n\n      while (el) {\n        var map = el._nsMap; //console.dir(map)\n\n        if (map) {\n          if (prefix in map) {\n            return map[prefix];\n          }\n        }\n\n        el = el.nodeType == ATTRIBUTE_NODE ? el.ownerDocument : el.parentNode;\n      }\n\n      return null;\n    },\n    // Introduced in DOM Level 3:\n    isDefaultNamespace: function isDefaultNamespace(namespaceURI) {\n      var prefix = this.lookupPrefix(namespaceURI);\n      return prefix == null;\n    }\n  };\n\n  function _xmlEncoder(c) {\n    return c == '<' && '&lt;' || c == '>' && '&gt;' || c == '&' && '&amp;' || c == '\"' && '&quot;' || '&#' + c.charCodeAt() + ';';\n  }\n\n  copy(NodeType, Node);\n  copy(NodeType, Node.prototype);\n  /**\n   * @param callback return true for continue,false for break\n   * @return boolean true: break visit;\n   */\n\n  function _visitNode(node, callback) {\n    if (callback(node)) {\n      return true;\n    }\n\n    if (node = node.firstChild) {\n      do {\n        if (_visitNode(node, callback)) {\n          return true;\n        }\n      } while (node = node.nextSibling);\n    }\n  }\n\n  function Document() {}\n\n  function _onAddAttribute(doc, el, newAttr) {\n    doc && doc._inc++;\n    var ns = newAttr.namespaceURI;\n\n    if (ns === NAMESPACE$2.XMLNS) {\n      //update namespace\n      el._nsMap[newAttr.prefix ? newAttr.localName : ''] = newAttr.value;\n    }\n  }\n\n  function _onRemoveAttribute(doc, el, newAttr, remove) {\n    doc && doc._inc++;\n    var ns = newAttr.namespaceURI;\n\n    if (ns === NAMESPACE$2.XMLNS) {\n      //update namespace\n      delete el._nsMap[newAttr.prefix ? newAttr.localName : ''];\n    }\n  }\n\n  function _onUpdateChild(doc, el, newChild) {\n    if (doc && doc._inc) {\n      doc._inc++; //update childNodes\n\n      var cs = el.childNodes;\n\n      if (newChild) {\n        cs[cs.length++] = newChild;\n      } else {\n        //console.log(1)\n        var child = el.firstChild;\n        var i = 0;\n\n        while (child) {\n          cs[i++] = child;\n          child = child.nextSibling;\n        }\n\n        cs.length = i;\n      }\n    }\n  }\n  /**\n   * attributes;\n   * children;\n   * \n   * writeable properties:\n   * nodeValue,Attr:value,CharacterData:data\n   * prefix\n   */\n\n\n  function _removeChild(parentNode, child) {\n    var previous = child.previousSibling;\n    var next = child.nextSibling;\n\n    if (previous) {\n      previous.nextSibling = next;\n    } else {\n      parentNode.firstChild = next;\n    }\n\n    if (next) {\n      next.previousSibling = previous;\n    } else {\n      parentNode.lastChild = previous;\n    }\n\n    _onUpdateChild(parentNode.ownerDocument, parentNode);\n\n    return child;\n  }\n  /**\n   * preformance key(refChild == null)\n   */\n\n\n  function _insertBefore(parentNode, newChild, nextChild) {\n    var cp = newChild.parentNode;\n\n    if (cp) {\n      cp.removeChild(newChild); //remove and update\n    }\n\n    if (newChild.nodeType === DOCUMENT_FRAGMENT_NODE) {\n      var newFirst = newChild.firstChild;\n\n      if (newFirst == null) {\n        return newChild;\n      }\n\n      var newLast = newChild.lastChild;\n    } else {\n      newFirst = newLast = newChild;\n    }\n\n    var pre = nextChild ? nextChild.previousSibling : parentNode.lastChild;\n    newFirst.previousSibling = pre;\n    newLast.nextSibling = nextChild;\n\n    if (pre) {\n      pre.nextSibling = newFirst;\n    } else {\n      parentNode.firstChild = newFirst;\n    }\n\n    if (nextChild == null) {\n      parentNode.lastChild = newLast;\n    } else {\n      nextChild.previousSibling = newLast;\n    }\n\n    do {\n      newFirst.parentNode = parentNode;\n    } while (newFirst !== newLast && (newFirst = newFirst.nextSibling));\n\n    _onUpdateChild(parentNode.ownerDocument || parentNode, parentNode); //console.log(parentNode.lastChild.nextSibling == null)\n\n\n    if (newChild.nodeType == DOCUMENT_FRAGMENT_NODE) {\n      newChild.firstChild = newChild.lastChild = null;\n    }\n\n    return newChild;\n  }\n\n  function _appendSingleChild(parentNode, newChild) {\n    var cp = newChild.parentNode;\n\n    if (cp) {\n      var pre = parentNode.lastChild;\n      cp.removeChild(newChild); //remove and update\n\n      var pre = parentNode.lastChild;\n    }\n\n    var pre = parentNode.lastChild;\n    newChild.parentNode = parentNode;\n    newChild.previousSibling = pre;\n    newChild.nextSibling = null;\n\n    if (pre) {\n      pre.nextSibling = newChild;\n    } else {\n      parentNode.firstChild = newChild;\n    }\n\n    parentNode.lastChild = newChild;\n\n    _onUpdateChild(parentNode.ownerDocument, parentNode, newChild);\n\n    return newChild; //console.log(\"__aa\",parentNode.lastChild.nextSibling == null)\n  }\n\n  Document.prototype = {\n    //implementation : null,\n    nodeName: '#document',\n    nodeType: DOCUMENT_NODE,\n\n    /**\n     * The DocumentType node of the document.\n     *\n     * @readonly\n     * @type DocumentType\n     */\n    doctype: null,\n    documentElement: null,\n    _inc: 1,\n    insertBefore: function insertBefore(newChild, refChild) {\n      //raises\n      if (newChild.nodeType == DOCUMENT_FRAGMENT_NODE) {\n        var child = newChild.firstChild;\n\n        while (child) {\n          var next = child.nextSibling;\n          this.insertBefore(child, refChild);\n          child = next;\n        }\n\n        return newChild;\n      }\n\n      if (this.documentElement == null && newChild.nodeType == ELEMENT_NODE) {\n        this.documentElement = newChild;\n      }\n\n      return _insertBefore(this, newChild, refChild), newChild.ownerDocument = this, newChild;\n    },\n    removeChild: function removeChild(oldChild) {\n      if (this.documentElement == oldChild) {\n        this.documentElement = null;\n      }\n\n      return _removeChild(this, oldChild);\n    },\n    // Introduced in DOM Level 2:\n    importNode: function importNode(importedNode, deep) {\n      return _importNode(this, importedNode, deep);\n    },\n    // Introduced in DOM Level 2:\n    getElementById: function getElementById(id) {\n      var rtv = null;\n\n      _visitNode(this.documentElement, function (node) {\n        if (node.nodeType == ELEMENT_NODE) {\n          if (node.getAttribute('id') == id) {\n            rtv = node;\n            return true;\n          }\n        }\n      });\n\n      return rtv;\n    },\n\n    /**\n     * The `getElementsByClassName` method of `Document` interface returns an array-like object\n     * of all child elements which have **all** of the given class name(s).\n     *\n     * Returns an empty list if `classeNames` is an empty string or only contains HTML white space characters.\n     *\n     *\n     * Warning: This is a live LiveNodeList.\n     * Changes in the DOM will reflect in the array as the changes occur.\n     * If an element selected by this array no longer qualifies for the selector,\n     * it will automatically be removed. Be aware of this for iteration purposes.\n     *\n     * @param {string} classNames is a string representing the class name(s) to match; multiple class names are separated by (ASCII-)whitespace\n     *\n     * @see https://developer.mozilla.org/en-US/docs/Web/API/Document/getElementsByClassName\n     * @see https://dom.spec.whatwg.org/#concept-getelementsbyclassname\n     */\n    getElementsByClassName: function getElementsByClassName(classNames) {\n      var classNamesSet = toOrderedSet(classNames);\n      return new LiveNodeList(this, function (base) {\n        var ls = [];\n\n        if (classNamesSet.length > 0) {\n          _visitNode(base.documentElement, function (node) {\n            if (node !== base && node.nodeType === ELEMENT_NODE) {\n              var nodeClassNames = node.getAttribute('class'); // can be null if the attribute does not exist\n\n              if (nodeClassNames) {\n                // before splitting and iterating just compare them for the most common case\n                var matches = classNames === nodeClassNames;\n\n                if (!matches) {\n                  var nodeClassNamesSet = toOrderedSet(nodeClassNames);\n                  matches = classNamesSet.every(arrayIncludes(nodeClassNamesSet));\n                }\n\n                if (matches) {\n                  ls.push(node);\n                }\n              }\n            }\n          });\n        }\n\n        return ls;\n      });\n    },\n    //document factory method:\n    createElement: function createElement(tagName) {\n      var node = new Element();\n      node.ownerDocument = this;\n      node.nodeName = tagName;\n      node.tagName = tagName;\n      node.localName = tagName;\n      node.childNodes = new NodeList();\n      var attrs = node.attributes = new NamedNodeMap();\n      attrs._ownerElement = node;\n      return node;\n    },\n    createDocumentFragment: function createDocumentFragment() {\n      var node = new DocumentFragment();\n      node.ownerDocument = this;\n      node.childNodes = new NodeList();\n      return node;\n    },\n    createTextNode: function createTextNode(data) {\n      var node = new Text();\n      node.ownerDocument = this;\n      node.appendData(data);\n      return node;\n    },\n    createComment: function createComment(data) {\n      var node = new Comment();\n      node.ownerDocument = this;\n      node.appendData(data);\n      return node;\n    },\n    createCDATASection: function createCDATASection(data) {\n      var node = new CDATASection();\n      node.ownerDocument = this;\n      node.appendData(data);\n      return node;\n    },\n    createProcessingInstruction: function createProcessingInstruction(target, data) {\n      var node = new ProcessingInstruction();\n      node.ownerDocument = this;\n      node.tagName = node.target = target;\n      node.nodeValue = node.data = data;\n      return node;\n    },\n    createAttribute: function createAttribute(name) {\n      var node = new Attr();\n      node.ownerDocument = this;\n      node.name = name;\n      node.nodeName = name;\n      node.localName = name;\n      node.specified = true;\n      return node;\n    },\n    createEntityReference: function createEntityReference(name) {\n      var node = new EntityReference();\n      node.ownerDocument = this;\n      node.nodeName = name;\n      return node;\n    },\n    // Introduced in DOM Level 2:\n    createElementNS: function createElementNS(namespaceURI, qualifiedName) {\n      var node = new Element();\n      var pl = qualifiedName.split(':');\n      var attrs = node.attributes = new NamedNodeMap();\n      node.childNodes = new NodeList();\n      node.ownerDocument = this;\n      node.nodeName = qualifiedName;\n      node.tagName = qualifiedName;\n      node.namespaceURI = namespaceURI;\n\n      if (pl.length == 2) {\n        node.prefix = pl[0];\n        node.localName = pl[1];\n      } else {\n        //el.prefix = null;\n        node.localName = qualifiedName;\n      }\n\n      attrs._ownerElement = node;\n      return node;\n    },\n    // Introduced in DOM Level 2:\n    createAttributeNS: function createAttributeNS(namespaceURI, qualifiedName) {\n      var node = new Attr();\n      var pl = qualifiedName.split(':');\n      node.ownerDocument = this;\n      node.nodeName = qualifiedName;\n      node.name = qualifiedName;\n      node.namespaceURI = namespaceURI;\n      node.specified = true;\n\n      if (pl.length == 2) {\n        node.prefix = pl[0];\n        node.localName = pl[1];\n      } else {\n        //el.prefix = null;\n        node.localName = qualifiedName;\n      }\n\n      return node;\n    }\n  };\n\n  _extends(Document, Node);\n\n  function Element() {\n    this._nsMap = {};\n  }\n  Element.prototype = {\n    nodeType: ELEMENT_NODE,\n    hasAttribute: function hasAttribute(name) {\n      return this.getAttributeNode(name) != null;\n    },\n    getAttribute: function getAttribute(name) {\n      var attr = this.getAttributeNode(name);\n      return attr && attr.value || '';\n    },\n    getAttributeNode: function getAttributeNode(name) {\n      return this.attributes.getNamedItem(name);\n    },\n    setAttribute: function setAttribute(name, value) {\n      var attr = this.ownerDocument.createAttribute(name);\n      attr.value = attr.nodeValue = \"\" + value;\n      this.setAttributeNode(attr);\n    },\n    removeAttribute: function removeAttribute(name) {\n      var attr = this.getAttributeNode(name);\n      attr && this.removeAttributeNode(attr);\n    },\n    //four real opeartion method\n    appendChild: function appendChild(newChild) {\n      if (newChild.nodeType === DOCUMENT_FRAGMENT_NODE) {\n        return this.insertBefore(newChild, null);\n      } else {\n        return _appendSingleChild(this, newChild);\n      }\n    },\n    setAttributeNode: function setAttributeNode(newAttr) {\n      return this.attributes.setNamedItem(newAttr);\n    },\n    setAttributeNodeNS: function setAttributeNodeNS(newAttr) {\n      return this.attributes.setNamedItemNS(newAttr);\n    },\n    removeAttributeNode: function removeAttributeNode(oldAttr) {\n      //console.log(this == oldAttr.ownerElement)\n      return this.attributes.removeNamedItem(oldAttr.nodeName);\n    },\n    //get real attribute name,and remove it by removeAttributeNode\n    removeAttributeNS: function removeAttributeNS(namespaceURI, localName) {\n      var old = this.getAttributeNodeNS(namespaceURI, localName);\n      old && this.removeAttributeNode(old);\n    },\n    hasAttributeNS: function hasAttributeNS(namespaceURI, localName) {\n      return this.getAttributeNodeNS(namespaceURI, localName) != null;\n    },\n    getAttributeNS: function getAttributeNS(namespaceURI, localName) {\n      var attr = this.getAttributeNodeNS(namespaceURI, localName);\n      return attr && attr.value || '';\n    },\n    setAttributeNS: function setAttributeNS(namespaceURI, qualifiedName, value) {\n      var attr = this.ownerDocument.createAttributeNS(namespaceURI, qualifiedName);\n      attr.value = attr.nodeValue = \"\" + value;\n      this.setAttributeNode(attr);\n    },\n    getAttributeNodeNS: function getAttributeNodeNS(namespaceURI, localName) {\n      return this.attributes.getNamedItemNS(namespaceURI, localName);\n    },\n    getElementsByTagName: function getElementsByTagName(tagName) {\n      return new LiveNodeList(this, function (base) {\n        var ls = [];\n\n        _visitNode(base, function (node) {\n          if (node !== base && node.nodeType == ELEMENT_NODE && (tagName === '*' || node.tagName == tagName)) {\n            ls.push(node);\n          }\n        });\n\n        return ls;\n      });\n    },\n    getElementsByTagNameNS: function getElementsByTagNameNS(namespaceURI, localName) {\n      return new LiveNodeList(this, function (base) {\n        var ls = [];\n\n        _visitNode(base, function (node) {\n          if (node !== base && node.nodeType === ELEMENT_NODE && (namespaceURI === '*' || node.namespaceURI === namespaceURI) && (localName === '*' || node.localName == localName)) {\n            ls.push(node);\n          }\n        });\n\n        return ls;\n      });\n    }\n  };\n  Document.prototype.getElementsByTagName = Element.prototype.getElementsByTagName;\n  Document.prototype.getElementsByTagNameNS = Element.prototype.getElementsByTagNameNS;\n\n  _extends(Element, Node);\n\n  function Attr() {}\n  Attr.prototype.nodeType = ATTRIBUTE_NODE;\n\n  _extends(Attr, Node);\n\n  function CharacterData() {}\n  CharacterData.prototype = {\n    data: '',\n    substringData: function substringData(offset, count) {\n      return this.data.substring(offset, offset + count);\n    },\n    appendData: function appendData(text) {\n      text = this.data + text;\n      this.nodeValue = this.data = text;\n      this.length = text.length;\n    },\n    insertData: function insertData(offset, text) {\n      this.replaceData(offset, 0, text);\n    },\n    appendChild: function appendChild(newChild) {\n      throw new Error(ExceptionMessage[HIERARCHY_REQUEST_ERR]);\n    },\n    deleteData: function deleteData(offset, count) {\n      this.replaceData(offset, count, \"\");\n    },\n    replaceData: function replaceData(offset, count, text) {\n      var start = this.data.substring(0, offset);\n      var end = this.data.substring(offset + count);\n      text = start + text + end;\n      this.nodeValue = this.data = text;\n      this.length = text.length;\n    }\n  };\n\n  _extends(CharacterData, Node);\n\n  function Text() {}\n  Text.prototype = {\n    nodeName: \"#text\",\n    nodeType: TEXT_NODE,\n    splitText: function splitText(offset) {\n      var text = this.data;\n      var newText = text.substring(offset);\n      text = text.substring(0, offset);\n      this.data = this.nodeValue = text;\n      this.length = text.length;\n      var newNode = this.ownerDocument.createTextNode(newText);\n\n      if (this.parentNode) {\n        this.parentNode.insertBefore(newNode, this.nextSibling);\n      }\n\n      return newNode;\n    }\n  };\n\n  _extends(Text, CharacterData);\n\n  function Comment() {}\n  Comment.prototype = {\n    nodeName: \"#comment\",\n    nodeType: COMMENT_NODE\n  };\n\n  _extends(Comment, CharacterData);\n\n  function CDATASection() {}\n  CDATASection.prototype = {\n    nodeName: \"#cdata-section\",\n    nodeType: CDATA_SECTION_NODE\n  };\n\n  _extends(CDATASection, CharacterData);\n\n  function DocumentType() {}\n  DocumentType.prototype.nodeType = DOCUMENT_TYPE_NODE;\n\n  _extends(DocumentType, Node);\n\n  function Notation() {}\n  Notation.prototype.nodeType = NOTATION_NODE;\n\n  _extends(Notation, Node);\n\n  function Entity() {}\n  Entity.prototype.nodeType = ENTITY_NODE;\n\n  _extends(Entity, Node);\n\n  function EntityReference() {}\n  EntityReference.prototype.nodeType = ENTITY_REFERENCE_NODE;\n\n  _extends(EntityReference, Node);\n\n  function DocumentFragment() {}\n  DocumentFragment.prototype.nodeName = \"#document-fragment\";\n  DocumentFragment.prototype.nodeType = DOCUMENT_FRAGMENT_NODE;\n\n  _extends(DocumentFragment, Node);\n\n  function ProcessingInstruction() {}\n\n  ProcessingInstruction.prototype.nodeType = PROCESSING_INSTRUCTION_NODE;\n\n  _extends(ProcessingInstruction, Node);\n\n  function XMLSerializer$1() {}\n\n  XMLSerializer$1.prototype.serializeToString = function (node, isHtml, nodeFilter) {\n    return nodeSerializeToString.call(node, isHtml, nodeFilter);\n  };\n\n  Node.prototype.toString = nodeSerializeToString;\n\n  function nodeSerializeToString(isHtml, nodeFilter) {\n    var buf = [];\n    var refNode = this.nodeType == 9 && this.documentElement || this;\n    var prefix = refNode.prefix;\n    var uri = refNode.namespaceURI;\n\n    if (uri && prefix == null) {\n      //console.log(prefix)\n      var prefix = refNode.lookupPrefix(uri);\n\n      if (prefix == null) {\n        //isHTML = true;\n        var visibleNamespaces = [{\n          namespace: uri,\n          prefix: null\n        } //{namespace:uri,prefix:''}\n        ];\n      }\n    }\n\n    serializeToString(this, buf, isHtml, nodeFilter, visibleNamespaces); //console.log('###',this.nodeType,uri,prefix,buf.join(''))\n\n    return buf.join('');\n  }\n\n  function needNamespaceDefine(node, isHTML, visibleNamespaces) {\n    var prefix = node.prefix || '';\n    var uri = node.namespaceURI; // According to [Namespaces in XML 1.0](https://www.w3.org/TR/REC-xml-names/#ns-using) ,\n    // and more specifically https://www.w3.org/TR/REC-xml-names/#nsc-NoPrefixUndecl :\n    // > In a namespace declaration for a prefix [...], the attribute value MUST NOT be empty.\n    // in a similar manner [Namespaces in XML 1.1](https://www.w3.org/TR/xml-names11/#ns-using)\n    // and more specifically https://www.w3.org/TR/xml-names11/#nsc-NSDeclared :\n    // > [...] Furthermore, the attribute value [...] must not be an empty string.\n    // so serializing empty namespace value like xmlns:ds=\"\" would produce an invalid XML document.\n\n    if (!uri) {\n      return false;\n    }\n\n    if (prefix === \"xml\" && uri === NAMESPACE$2.XML || uri === NAMESPACE$2.XMLNS) {\n      return false;\n    }\n\n    var i = visibleNamespaces.length;\n\n    while (i--) {\n      var ns = visibleNamespaces[i]; // get namespace prefix\n\n      if (ns.prefix === prefix) {\n        return ns.namespace !== uri;\n      }\n    }\n\n    return true;\n  }\n  /**\n   * Well-formed constraint: No < in Attribute Values\n   * The replacement text of any entity referred to directly or indirectly in an attribute value must not contain a <.\n   * @see https://www.w3.org/TR/xml/#CleanAttrVals\n   * @see https://www.w3.org/TR/xml/#NT-AttValue\n   */\n\n\n  function addSerializedAttribute(buf, qualifiedName, value) {\n    buf.push(' ', qualifiedName, '=\"', value.replace(/[<&\"]/g, _xmlEncoder), '\"');\n  }\n\n  function serializeToString(node, buf, isHTML, nodeFilter, visibleNamespaces) {\n    if (!visibleNamespaces) {\n      visibleNamespaces = [];\n    }\n\n    if (nodeFilter) {\n      node = nodeFilter(node);\n\n      if (node) {\n        if (typeof node == 'string') {\n          buf.push(node);\n          return;\n        }\n      } else {\n        return;\n      } //buf.sort.apply(attrs, attributeSorter);\n\n    }\n\n    switch (node.nodeType) {\n      case ELEMENT_NODE:\n        var attrs = node.attributes;\n        var len = attrs.length;\n        var child = node.firstChild;\n        var nodeName = node.tagName;\n        isHTML = NAMESPACE$2.isHTML(node.namespaceURI) || isHTML;\n        var prefixedNodeName = nodeName;\n\n        if (!isHTML && !node.prefix && node.namespaceURI) {\n          var defaultNS; // lookup current default ns from `xmlns` attribute\n\n          for (var ai = 0; ai < attrs.length; ai++) {\n            if (attrs.item(ai).name === 'xmlns') {\n              defaultNS = attrs.item(ai).value;\n              break;\n            }\n          }\n\n          if (!defaultNS) {\n            // lookup current default ns in visibleNamespaces\n            for (var nsi = visibleNamespaces.length - 1; nsi >= 0; nsi--) {\n              var namespace = visibleNamespaces[nsi];\n\n              if (namespace.prefix === '' && namespace.namespace === node.namespaceURI) {\n                defaultNS = namespace.namespace;\n                break;\n              }\n            }\n          }\n\n          if (defaultNS !== node.namespaceURI) {\n            for (var nsi = visibleNamespaces.length - 1; nsi >= 0; nsi--) {\n              var namespace = visibleNamespaces[nsi];\n\n              if (namespace.namespace === node.namespaceURI) {\n                if (namespace.prefix) {\n                  prefixedNodeName = namespace.prefix + ':' + nodeName;\n                }\n\n                break;\n              }\n            }\n          }\n        }\n\n        buf.push('<', prefixedNodeName);\n\n        for (var i = 0; i < len; i++) {\n          // add namespaces for attributes\n          var attr = attrs.item(i);\n\n          if (attr.prefix == 'xmlns') {\n            visibleNamespaces.push({\n              prefix: attr.localName,\n              namespace: attr.value\n            });\n          } else if (attr.nodeName == 'xmlns') {\n            visibleNamespaces.push({\n              prefix: '',\n              namespace: attr.value\n            });\n          }\n        }\n\n        for (var i = 0; i < len; i++) {\n          var attr = attrs.item(i);\n\n          if (needNamespaceDefine(attr, isHTML, visibleNamespaces)) {\n            var prefix = attr.prefix || '';\n            var uri = attr.namespaceURI;\n            addSerializedAttribute(buf, prefix ? 'xmlns:' + prefix : \"xmlns\", uri);\n            visibleNamespaces.push({\n              prefix: prefix,\n              namespace: uri\n            });\n          }\n\n          serializeToString(attr, buf, isHTML, nodeFilter, visibleNamespaces);\n        } // add namespace for current node\t\t\n\n\n        if (nodeName === prefixedNodeName && needNamespaceDefine(node, isHTML, visibleNamespaces)) {\n          var prefix = node.prefix || '';\n          var uri = node.namespaceURI;\n          addSerializedAttribute(buf, prefix ? 'xmlns:' + prefix : \"xmlns\", uri);\n          visibleNamespaces.push({\n            prefix: prefix,\n            namespace: uri\n          });\n        }\n\n        if (child || isHTML && !/^(?:meta|link|img|br|hr|input)$/i.test(nodeName)) {\n          buf.push('>'); //if is cdata child node\n\n          if (isHTML && /^script$/i.test(nodeName)) {\n            while (child) {\n              if (child.data) {\n                buf.push(child.data);\n              } else {\n                serializeToString(child, buf, isHTML, nodeFilter, visibleNamespaces.slice());\n              }\n\n              child = child.nextSibling;\n            }\n          } else {\n            while (child) {\n              serializeToString(child, buf, isHTML, nodeFilter, visibleNamespaces.slice());\n              child = child.nextSibling;\n            }\n          }\n\n          buf.push('</', prefixedNodeName, '>');\n        } else {\n          buf.push('/>');\n        } // remove added visible namespaces\n        //visibleNamespaces.length = startVisibleNamespaces;\n\n\n        return;\n\n      case DOCUMENT_NODE:\n      case DOCUMENT_FRAGMENT_NODE:\n        var child = node.firstChild;\n\n        while (child) {\n          serializeToString(child, buf, isHTML, nodeFilter, visibleNamespaces.slice());\n          child = child.nextSibling;\n        }\n\n        return;\n\n      case ATTRIBUTE_NODE:\n        return addSerializedAttribute(buf, node.name, node.value);\n\n      case TEXT_NODE:\n        /**\n         * The ampersand character (&) and the left angle bracket (<) must not appear in their literal form,\n         * except when used as markup delimiters, or within a comment, a processing instruction, or a CDATA section.\n         * If they are needed elsewhere, they must be escaped using either numeric character references or the strings\n         * `&amp;` and `&lt;` respectively.\n         * The right angle bracket (>) may be represented using the string \" &gt; \", and must, for compatibility,\n         * be escaped using either `&gt;` or a character reference when it appears in the string `]]>` in content,\n         * when that string is not marking the end of a CDATA section.\n         *\n         * In the content of elements, character data is any string of characters\n         * which does not contain the start-delimiter of any markup\n         * and does not include the CDATA-section-close delimiter, `]]>`.\n         *\n         * @see https://www.w3.org/TR/xml/#NT-CharData\n         */\n        return buf.push(node.data.replace(/[<&]/g, _xmlEncoder).replace(/]]>/g, ']]&gt;'));\n\n      case CDATA_SECTION_NODE:\n        return buf.push('<![CDATA[', node.data, ']]>');\n\n      case COMMENT_NODE:\n        return buf.push(\"<!--\", node.data, \"-->\");\n\n      case DOCUMENT_TYPE_NODE:\n        var pubid = node.publicId;\n        var sysid = node.systemId;\n        buf.push('<!DOCTYPE ', node.name);\n\n        if (pubid) {\n          buf.push(' PUBLIC ', pubid);\n\n          if (sysid && sysid != '.') {\n            buf.push(' ', sysid);\n          }\n\n          buf.push('>');\n        } else if (sysid && sysid != '.') {\n          buf.push(' SYSTEM ', sysid, '>');\n        } else {\n          var sub = node.internalSubset;\n\n          if (sub) {\n            buf.push(\" [\", sub, \"]\");\n          }\n\n          buf.push(\">\");\n        }\n\n        return;\n\n      case PROCESSING_INSTRUCTION_NODE:\n        return buf.push(\"<?\", node.target, \" \", node.data, \"?>\");\n\n      case ENTITY_REFERENCE_NODE:\n        return buf.push('&', node.nodeName, ';');\n      //case ENTITY_NODE:\n      //case NOTATION_NODE:\n\n      default:\n        buf.push('??', node.nodeName);\n    }\n  }\n\n  function _importNode(doc, node, deep) {\n    var node2;\n\n    switch (node.nodeType) {\n      case ELEMENT_NODE:\n        node2 = node.cloneNode(false);\n        node2.ownerDocument = doc;\n      //var attrs = node2.attributes;\n      //var len = attrs.length;\n      //for(var i=0;i<len;i++){\n      //node2.setAttributeNodeNS(importNode(doc,attrs.item(i),deep));\n      //}\n\n      case DOCUMENT_FRAGMENT_NODE:\n        break;\n\n      case ATTRIBUTE_NODE:\n        deep = true;\n        break;\n      //case ENTITY_REFERENCE_NODE:\n      //case PROCESSING_INSTRUCTION_NODE:\n      ////case TEXT_NODE:\n      //case CDATA_SECTION_NODE:\n      //case COMMENT_NODE:\n      //\tdeep = false;\n      //\tbreak;\n      //case DOCUMENT_NODE:\n      //case DOCUMENT_TYPE_NODE:\n      //cannot be imported.\n      //case ENTITY_NODE:\n      //case NOTATION_NODE：\n      //can not hit in level3\n      //default:throw e;\n    }\n\n    if (!node2) {\n      node2 = node.cloneNode(false); //false\n    }\n\n    node2.ownerDocument = doc;\n    node2.parentNode = null;\n\n    if (deep) {\n      var child = node.firstChild;\n\n      while (child) {\n        node2.appendChild(_importNode(doc, child, deep));\n        child = child.nextSibling;\n      }\n    }\n\n    return node2;\n  } //\n  //var _relationMap = {firstChild:1,lastChild:1,previousSibling:1,nextSibling:1,\n  //\t\t\t\t\tattributes:1,childNodes:1,parentNode:1,documentElement:1,doctype,};\n\n\n  function _cloneNode(doc, node, deep) {\n    var node2 = new node.constructor();\n\n    for (var n in node) {\n      var v = node[n];\n\n      if (typeof v != 'object') {\n        if (v != node2[n]) {\n          node2[n] = v;\n        }\n      }\n    }\n\n    if (node.childNodes) {\n      node2.childNodes = new NodeList();\n    }\n\n    node2.ownerDocument = doc;\n\n    switch (node2.nodeType) {\n      case ELEMENT_NODE:\n        var attrs = node.attributes;\n        var attrs2 = node2.attributes = new NamedNodeMap();\n        var len = attrs.length;\n        attrs2._ownerElement = node2;\n\n        for (var i = 0; i < len; i++) {\n          node2.setAttributeNode(_cloneNode(doc, attrs.item(i), true));\n        }\n\n        break;\n\n      case ATTRIBUTE_NODE:\n        deep = true;\n    }\n\n    if (deep) {\n      var child = node.firstChild;\n\n      while (child) {\n        node2.appendChild(_cloneNode(doc, child, deep));\n        child = child.nextSibling;\n      }\n    }\n\n    return node2;\n  }\n\n  function __set__(object, key, value) {\n    object[key] = value;\n  } //do dynamic\n\n\n  try {\n    if (Object.defineProperty) {\n      var getTextContent = function getTextContent(node) {\n        switch (node.nodeType) {\n          case ELEMENT_NODE:\n          case DOCUMENT_FRAGMENT_NODE:\n            var buf = [];\n            node = node.firstChild;\n\n            while (node) {\n              if (node.nodeType !== 7 && node.nodeType !== 8) {\n                buf.push(getTextContent(node));\n              }\n\n              node = node.nextSibling;\n            }\n\n            return buf.join('');\n\n          default:\n            return node.nodeValue;\n        }\n      };\n\n      Object.defineProperty(LiveNodeList.prototype, 'length', {\n        get: function get() {\n          _updateLiveList(this);\n\n          return this.$$length;\n        }\n      });\n      Object.defineProperty(Node.prototype, 'textContent', {\n        get: function get() {\n          return getTextContent(this);\n        },\n        set: function set(data) {\n          switch (this.nodeType) {\n            case ELEMENT_NODE:\n            case DOCUMENT_FRAGMENT_NODE:\n              while (this.firstChild) {\n                this.removeChild(this.firstChild);\n              }\n\n              if (data || String(data)) {\n                this.appendChild(this.ownerDocument.createTextNode(data));\n              }\n\n              break;\n\n            default:\n              this.data = data;\n              this.value = data;\n              this.nodeValue = data;\n          }\n        }\n      });\n\n      __set__ = function __set__(object, key, value) {\n        //console.log(value)\n        object['$$' + key] = value;\n      };\n    }\n  } catch (e) {//ie8\n  } //if(typeof require == 'function'){\n\n\n  var DocumentType_1 = DocumentType;\n  var DOMException_1 = DOMException;\n  var DOMImplementation_1$1 = DOMImplementation$1;\n  var Element_1 = Element;\n  var Node_1 = Node;\n  var NodeList_1 = NodeList;\n  var XMLSerializer_1 = XMLSerializer$1; //}\n\n  var dom = {\n    DocumentType: DocumentType_1,\n    DOMException: DOMException_1,\n    DOMImplementation: DOMImplementation_1$1,\n    Element: Element_1,\n    Node: Node_1,\n    NodeList: NodeList_1,\n    XMLSerializer: XMLSerializer_1\n  };\n\n  var entities = createCommonjsModule(function (module, exports) {\n    var freeze = conventions.freeze;\n    /**\n     * The entities that are predefined in every XML document.\n     *\n     * @see https://www.w3.org/TR/2006/REC-xml11-20060816/#sec-predefined-ent W3C XML 1.1\n     * @see https://www.w3.org/TR/2008/REC-xml-20081126/#sec-predefined-ent W3C XML 1.0\n     * @see https://en.wikipedia.org/wiki/List_of_XML_and_HTML_character_entity_references#Predefined_entities_in_XML Wikipedia\n     */\n\n    exports.XML_ENTITIES = freeze({\n      amp: '&',\n      apos: \"'\",\n      gt: '>',\n      lt: '<',\n      quot: '\"'\n    });\n    /**\n     * A map of currently 241 entities that are detected in an HTML document.\n     * They contain all entries from `XML_ENTITIES`.\n     *\n     * @see XML_ENTITIES\n     * @see DOMParser.parseFromString\n     * @see DOMImplementation.prototype.createHTMLDocument\n     * @see https://html.spec.whatwg.org/#named-character-references WHATWG HTML(5) Spec\n     * @see https://www.w3.org/TR/xml-entity-names/ W3C XML Entity Names\n     * @see https://www.w3.org/TR/html4/sgml/entities.html W3C HTML4/SGML\n     * @see https://en.wikipedia.org/wiki/List_of_XML_and_HTML_character_entity_references#Character_entity_references_in_HTML Wikipedia (HTML)\n     * @see https://en.wikipedia.org/wiki/List_of_XML_and_HTML_character_entity_references#Entities_representing_special_characters_in_XHTML Wikpedia (XHTML)\n     */\n\n    exports.HTML_ENTITIES = freeze({\n      lt: '<',\n      gt: '>',\n      amp: '&',\n      quot: '\"',\n      apos: \"'\",\n      Agrave: \"À\",\n      Aacute: \"Á\",\n      Acirc: \"Â\",\n      Atilde: \"Ã\",\n      Auml: \"Ä\",\n      Aring: \"Å\",\n      AElig: \"Æ\",\n      Ccedil: \"Ç\",\n      Egrave: \"È\",\n      Eacute: \"É\",\n      Ecirc: \"Ê\",\n      Euml: \"Ë\",\n      Igrave: \"Ì\",\n      Iacute: \"Í\",\n      Icirc: \"Î\",\n      Iuml: \"Ï\",\n      ETH: \"Ð\",\n      Ntilde: \"Ñ\",\n      Ograve: \"Ò\",\n      Oacute: \"Ó\",\n      Ocirc: \"Ô\",\n      Otilde: \"Õ\",\n      Ouml: \"Ö\",\n      Oslash: \"Ø\",\n      Ugrave: \"Ù\",\n      Uacute: \"Ú\",\n      Ucirc: \"Û\",\n      Uuml: \"Ü\",\n      Yacute: \"Ý\",\n      THORN: \"Þ\",\n      szlig: \"ß\",\n      agrave: \"à\",\n      aacute: \"á\",\n      acirc: \"â\",\n      atilde: \"ã\",\n      auml: \"ä\",\n      aring: \"å\",\n      aelig: \"æ\",\n      ccedil: \"ç\",\n      egrave: \"è\",\n      eacute: \"é\",\n      ecirc: \"ê\",\n      euml: \"ë\",\n      igrave: \"ì\",\n      iacute: \"í\",\n      icirc: \"î\",\n      iuml: \"ï\",\n      eth: \"ð\",\n      ntilde: \"ñ\",\n      ograve: \"ò\",\n      oacute: \"ó\",\n      ocirc: \"ô\",\n      otilde: \"õ\",\n      ouml: \"ö\",\n      oslash: \"ø\",\n      ugrave: \"ù\",\n      uacute: \"ú\",\n      ucirc: \"û\",\n      uuml: \"ü\",\n      yacute: \"ý\",\n      thorn: \"þ\",\n      yuml: \"ÿ\",\n      nbsp: \"\\xA0\",\n      iexcl: \"¡\",\n      cent: \"¢\",\n      pound: \"£\",\n      curren: \"¤\",\n      yen: \"¥\",\n      brvbar: \"¦\",\n      sect: \"§\",\n      uml: \"¨\",\n      copy: \"©\",\n      ordf: \"ª\",\n      laquo: \"«\",\n      not: \"¬\",\n      shy: \"­­\",\n      reg: \"®\",\n      macr: \"¯\",\n      deg: \"°\",\n      plusmn: \"±\",\n      sup2: \"²\",\n      sup3: \"³\",\n      acute: \"´\",\n      micro: \"µ\",\n      para: \"¶\",\n      middot: \"·\",\n      cedil: \"¸\",\n      sup1: \"¹\",\n      ordm: \"º\",\n      raquo: \"»\",\n      frac14: \"¼\",\n      frac12: \"½\",\n      frac34: \"¾\",\n      iquest: \"¿\",\n      times: \"×\",\n      divide: \"÷\",\n      forall: \"∀\",\n      part: \"∂\",\n      exist: \"∃\",\n      empty: \"∅\",\n      nabla: \"∇\",\n      isin: \"∈\",\n      notin: \"∉\",\n      ni: \"∋\",\n      prod: \"∏\",\n      sum: \"∑\",\n      minus: \"−\",\n      lowast: \"∗\",\n      radic: \"√\",\n      prop: \"∝\",\n      infin: \"∞\",\n      ang: \"∠\",\n      and: \"∧\",\n      or: \"∨\",\n      cap: \"∩\",\n      cup: \"∪\",\n      'int': \"∫\",\n      there4: \"∴\",\n      sim: \"∼\",\n      cong: \"≅\",\n      asymp: \"≈\",\n      ne: \"≠\",\n      equiv: \"≡\",\n      le: \"≤\",\n      ge: \"≥\",\n      sub: \"⊂\",\n      sup: \"⊃\",\n      nsub: \"⊄\",\n      sube: \"⊆\",\n      supe: \"⊇\",\n      oplus: \"⊕\",\n      otimes: \"⊗\",\n      perp: \"⊥\",\n      sdot: \"⋅\",\n      Alpha: \"Α\",\n      Beta: \"Β\",\n      Gamma: \"Γ\",\n      Delta: \"Δ\",\n      Epsilon: \"Ε\",\n      Zeta: \"Ζ\",\n      Eta: \"Η\",\n      Theta: \"Θ\",\n      Iota: \"Ι\",\n      Kappa: \"Κ\",\n      Lambda: \"Λ\",\n      Mu: \"Μ\",\n      Nu: \"Ν\",\n      Xi: \"Ξ\",\n      Omicron: \"Ο\",\n      Pi: \"Π\",\n      Rho: \"Ρ\",\n      Sigma: \"Σ\",\n      Tau: \"Τ\",\n      Upsilon: \"Υ\",\n      Phi: \"Φ\",\n      Chi: \"Χ\",\n      Psi: \"Ψ\",\n      Omega: \"Ω\",\n      alpha: \"α\",\n      beta: \"β\",\n      gamma: \"γ\",\n      delta: \"δ\",\n      epsilon: \"ε\",\n      zeta: \"ζ\",\n      eta: \"η\",\n      theta: \"θ\",\n      iota: \"ι\",\n      kappa: \"κ\",\n      lambda: \"λ\",\n      mu: \"μ\",\n      nu: \"ν\",\n      xi: \"ξ\",\n      omicron: \"ο\",\n      pi: \"π\",\n      rho: \"ρ\",\n      sigmaf: \"ς\",\n      sigma: \"σ\",\n      tau: \"τ\",\n      upsilon: \"υ\",\n      phi: \"φ\",\n      chi: \"χ\",\n      psi: \"ψ\",\n      omega: \"ω\",\n      thetasym: \"ϑ\",\n      upsih: \"ϒ\",\n      piv: \"ϖ\",\n      OElig: \"Œ\",\n      oelig: \"œ\",\n      Scaron: \"Š\",\n      scaron: \"š\",\n      Yuml: \"Ÿ\",\n      fnof: \"ƒ\",\n      circ: \"ˆ\",\n      tilde: \"˜\",\n      ensp: \" \",\n      emsp: \" \",\n      thinsp: \" \",\n      zwnj: \"‌\",\n      zwj: \"‍\",\n      lrm: \"‎\",\n      rlm: \"‏\",\n      ndash: \"–\",\n      mdash: \"—\",\n      lsquo: \"‘\",\n      rsquo: \"’\",\n      sbquo: \"‚\",\n      ldquo: \"“\",\n      rdquo: \"”\",\n      bdquo: \"„\",\n      dagger: \"†\",\n      Dagger: \"‡\",\n      bull: \"•\",\n      hellip: \"…\",\n      permil: \"‰\",\n      prime: \"′\",\n      Prime: \"″\",\n      lsaquo: \"‹\",\n      rsaquo: \"›\",\n      oline: \"‾\",\n      euro: \"€\",\n      trade: \"™\",\n      larr: \"←\",\n      uarr: \"↑\",\n      rarr: \"→\",\n      darr: \"↓\",\n      harr: \"↔\",\n      crarr: \"↵\",\n      lceil: \"⌈\",\n      rceil: \"⌉\",\n      lfloor: \"⌊\",\n      rfloor: \"⌋\",\n      loz: \"◊\",\n      spades: \"♠\",\n      clubs: \"♣\",\n      hearts: \"♥\",\n      diams: \"♦\"\n    });\n    /**\n     * @deprecated use `HTML_ENTITIES` instead\n     * @see HTML_ENTITIES\n     */\n\n    exports.entityMap = exports.HTML_ENTITIES;\n  });\n  entities.XML_ENTITIES;\n  entities.HTML_ENTITIES;\n  entities.entityMap;\n\n  var NAMESPACE$1 = conventions.NAMESPACE; //[4]   \tNameStartChar\t   ::=   \t\":\" | [A-Z] | \"_\" | [a-z] | [#xC0-#xD6] | [#xD8-#xF6] | [#xF8-#x2FF] | [#x370-#x37D] | [#x37F-#x1FFF] | [#x200C-#x200D] | [#x2070-#x218F] | [#x2C00-#x2FEF] | [#x3001-#xD7FF] | [#xF900-#xFDCF] | [#xFDF0-#xFFFD] | [#x10000-#xEFFFF]\n  //[4a]   \tNameChar\t   ::=   \tNameStartChar | \"-\" | \".\" | [0-9] | #xB7 | [#x0300-#x036F] | [#x203F-#x2040]\n  //[5]   \tName\t   ::=   \tNameStartChar (NameChar)*\n\n  var nameStartChar = /[A-Z_a-z\\xC0-\\xD6\\xD8-\\xF6\\u00F8-\\u02FF\\u0370-\\u037D\\u037F-\\u1FFF\\u200C-\\u200D\\u2070-\\u218F\\u2C00-\\u2FEF\\u3001-\\uD7FF\\uF900-\\uFDCF\\uFDF0-\\uFFFD]/; //\\u10000-\\uEFFFF\n\n  var nameChar = new RegExp(\"[\\\\-\\\\.0-9\" + nameStartChar.source.slice(1, -1) + \"\\\\u00B7\\\\u0300-\\\\u036F\\\\u203F-\\\\u2040]\");\n  var tagNamePattern = new RegExp('^' + nameStartChar.source + nameChar.source + '*(?:\\:' + nameStartChar.source + nameChar.source + '*)?$'); //var tagNamePattern = /^[a-zA-Z_][\\w\\-\\.]*(?:\\:[a-zA-Z_][\\w\\-\\.]*)?$/\n  //var handlers = 'resolveEntity,getExternalSubset,characters,endDocument,endElement,endPrefixMapping,ignorableWhitespace,processingInstruction,setDocumentLocator,skippedEntity,startDocument,startElement,startPrefixMapping,notationDecl,unparsedEntityDecl,error,fatalError,warning,attributeDecl,elementDecl,externalEntityDecl,internalEntityDecl,comment,endCDATA,endDTD,endEntity,startCDATA,startDTD,startEntity'.split(',')\n  //S_TAG,\tS_ATTR,\tS_EQ,\tS_ATTR_NOQUOT_VALUE\n  //S_ATTR_SPACE,\tS_ATTR_END,\tS_TAG_SPACE, S_TAG_CLOSE\n\n  var S_TAG = 0; //tag name offerring\n\n  var S_ATTR = 1; //attr name offerring \n\n  var S_ATTR_SPACE = 2; //attr name end and space offer\n\n  var S_EQ = 3; //=space?\n\n  var S_ATTR_NOQUOT_VALUE = 4; //attr value(no quot value only)\n\n  var S_ATTR_END = 5; //attr value end and no space(quot end)\n\n  var S_TAG_SPACE = 6; //(attr value end || tag end ) && (space offer)\n\n  var S_TAG_CLOSE = 7; //closed el<el />\n\n  /**\n   * Creates an error that will not be caught by XMLReader aka the SAX parser.\n   *\n   * @param {string} message\n   * @param {any?} locator Optional, can provide details about the location in the source\n   * @constructor\n   */\n\n  function ParseError$1(message, locator) {\n    this.message = message;\n    this.locator = locator;\n    if (Error.captureStackTrace) Error.captureStackTrace(this, ParseError$1);\n  }\n\n  ParseError$1.prototype = new Error();\n  ParseError$1.prototype.name = ParseError$1.name;\n\n  function XMLReader$1() {}\n\n  XMLReader$1.prototype = {\n    parse: function parse(source, defaultNSMap, entityMap) {\n      var domBuilder = this.domBuilder;\n      domBuilder.startDocument();\n\n      _copy(defaultNSMap, defaultNSMap = {});\n\n      _parse(source, defaultNSMap, entityMap, domBuilder, this.errorHandler);\n\n      domBuilder.endDocument();\n    }\n  };\n\n  function _parse(source, defaultNSMapCopy, entityMap, domBuilder, errorHandler) {\n    function fixedFromCharCode(code) {\n      // String.prototype.fromCharCode does not supports\n      // > 2 bytes unicode chars directly\n      if (code > 0xffff) {\n        code -= 0x10000;\n        var surrogate1 = 0xd800 + (code >> 10),\n            surrogate2 = 0xdc00 + (code & 0x3ff);\n        return String.fromCharCode(surrogate1, surrogate2);\n      } else {\n        return String.fromCharCode(code);\n      }\n    }\n\n    function entityReplacer(a) {\n      var k = a.slice(1, -1);\n\n      if (k in entityMap) {\n        return entityMap[k];\n      } else if (k.charAt(0) === '#') {\n        return fixedFromCharCode(parseInt(k.substr(1).replace('x', '0x')));\n      } else {\n        errorHandler.error('entity not found:' + a);\n        return a;\n      }\n    }\n\n    function appendText(end) {\n      //has some bugs\n      if (end > start) {\n        var xt = source.substring(start, end).replace(/&#?\\w+;/g, entityReplacer);\n        locator && position(start);\n        domBuilder.characters(xt, 0, end - start);\n        start = end;\n      }\n    }\n\n    function position(p, m) {\n      while (p >= lineEnd && (m = linePattern.exec(source))) {\n        lineStart = m.index;\n        lineEnd = lineStart + m[0].length;\n        locator.lineNumber++; //console.log('line++:',locator,startPos,endPos)\n      }\n\n      locator.columnNumber = p - lineStart + 1;\n    }\n\n    var lineStart = 0;\n    var lineEnd = 0;\n    var linePattern = /.*(?:\\r\\n?|\\n)|.*$/g;\n    var locator = domBuilder.locator;\n    var parseStack = [{\n      currentNSMap: defaultNSMapCopy\n    }];\n    var closeMap = {};\n    var start = 0;\n\n    while (true) {\n      try {\n        var tagStart = source.indexOf('<', start);\n\n        if (tagStart < 0) {\n          if (!source.substr(start).match(/^\\s*$/)) {\n            var doc = domBuilder.doc;\n            var text = doc.createTextNode(source.substr(start));\n            doc.appendChild(text);\n            domBuilder.currentElement = text;\n          }\n\n          return;\n        }\n\n        if (tagStart > start) {\n          appendText(tagStart);\n        }\n\n        switch (source.charAt(tagStart + 1)) {\n          case '/':\n            var end = source.indexOf('>', tagStart + 3);\n            var tagName = source.substring(tagStart + 2, end).replace(/[ \\t\\n\\r]+$/g, '');\n            var config = parseStack.pop();\n\n            if (end < 0) {\n              tagName = source.substring(tagStart + 2).replace(/[\\s<].*/, '');\n              errorHandler.error(\"end tag name: \" + tagName + ' is not complete:' + config.tagName);\n              end = tagStart + 1 + tagName.length;\n            } else if (tagName.match(/\\s</)) {\n              tagName = tagName.replace(/[\\s<].*/, '');\n              errorHandler.error(\"end tag name: \" + tagName + ' maybe not complete');\n              end = tagStart + 1 + tagName.length;\n            }\n\n            var localNSMap = config.localNSMap;\n            var endMatch = config.tagName == tagName;\n            var endIgnoreCaseMach = endMatch || config.tagName && config.tagName.toLowerCase() == tagName.toLowerCase();\n\n            if (endIgnoreCaseMach) {\n              domBuilder.endElement(config.uri, config.localName, tagName);\n\n              if (localNSMap) {\n                for (var prefix in localNSMap) {\n                  domBuilder.endPrefixMapping(prefix);\n                }\n              }\n\n              if (!endMatch) {\n                errorHandler.fatalError(\"end tag name: \" + tagName + ' is not match the current start tagName:' + config.tagName); // No known test case\n              }\n            } else {\n              parseStack.push(config);\n            }\n\n            end++;\n            break;\n          // end elment\n\n          case '?':\n            // <?...?>\n            locator && position(tagStart);\n            end = parseInstruction(source, tagStart, domBuilder);\n            break;\n\n          case '!':\n            // <!doctype,<![CDATA,<!--\n            locator && position(tagStart);\n            end = parseDCC(source, tagStart, domBuilder, errorHandler);\n            break;\n\n          default:\n            locator && position(tagStart);\n            var el = new ElementAttributes();\n            var currentNSMap = parseStack[parseStack.length - 1].currentNSMap; //elStartEnd\n\n            var end = parseElementStartPart(source, tagStart, el, currentNSMap, entityReplacer, errorHandler);\n            var len = el.length;\n\n            if (!el.closed && fixSelfClosed(source, end, el.tagName, closeMap)) {\n              el.closed = true;\n\n              if (!entityMap.nbsp) {\n                errorHandler.warning('unclosed xml attribute');\n              }\n            }\n\n            if (locator && len) {\n              var locator2 = copyLocator(locator, {}); //try{//attribute position fixed\n\n              for (var i = 0; i < len; i++) {\n                var a = el[i];\n                position(a.offset);\n                a.locator = copyLocator(locator, {});\n              }\n\n              domBuilder.locator = locator2;\n\n              if (appendElement$1(el, domBuilder, currentNSMap)) {\n                parseStack.push(el);\n              }\n\n              domBuilder.locator = locator;\n            } else {\n              if (appendElement$1(el, domBuilder, currentNSMap)) {\n                parseStack.push(el);\n              }\n            }\n\n            if (NAMESPACE$1.isHTML(el.uri) && !el.closed) {\n              end = parseHtmlSpecialContent(source, end, el.tagName, entityReplacer, domBuilder);\n            } else {\n              end++;\n            }\n\n        }\n      } catch (e) {\n        if (e instanceof ParseError$1) {\n          throw e;\n        }\n\n        errorHandler.error('element parse error: ' + e);\n        end = -1;\n      }\n\n      if (end > start) {\n        start = end;\n      } else {\n        //TODO: 这里有可能sax回退，有位置错误风险\n        appendText(Math.max(tagStart, start) + 1);\n      }\n    }\n  }\n\n  function copyLocator(f, t) {\n    t.lineNumber = f.lineNumber;\n    t.columnNumber = f.columnNumber;\n    return t;\n  }\n  /**\n   * @see #appendElement(source,elStartEnd,el,selfClosed,entityReplacer,domBuilder,parseStack);\n   * @return end of the elementStartPart(end of elementEndPart for selfClosed el)\n   */\n\n\n  function parseElementStartPart(source, start, el, currentNSMap, entityReplacer, errorHandler) {\n    /**\n     * @param {string} qname\n     * @param {string} value\n     * @param {number} startIndex\n     */\n    function addAttribute(qname, value, startIndex) {\n      if (el.attributeNames.hasOwnProperty(qname)) {\n        errorHandler.fatalError('Attribute ' + qname + ' redefined');\n      }\n\n      el.addValue(qname, value, startIndex);\n    }\n\n    var attrName;\n    var value;\n    var p = ++start;\n    var s = S_TAG; //status\n\n    while (true) {\n      var c = source.charAt(p);\n\n      switch (c) {\n        case '=':\n          if (s === S_ATTR) {\n            //attrName\n            attrName = source.slice(start, p);\n            s = S_EQ;\n          } else if (s === S_ATTR_SPACE) {\n            s = S_EQ;\n          } else {\n            //fatalError: equal must after attrName or space after attrName\n            throw new Error('attribute equal must after attrName'); // No known test case\n          }\n\n          break;\n\n        case '\\'':\n        case '\"':\n          if (s === S_EQ || s === S_ATTR //|| s == S_ATTR_SPACE\n          ) {\n              //equal\n              if (s === S_ATTR) {\n                errorHandler.warning('attribute value must after \"=\"');\n                attrName = source.slice(start, p);\n              }\n\n              start = p + 1;\n              p = source.indexOf(c, start);\n\n              if (p > 0) {\n                value = source.slice(start, p).replace(/&#?\\w+;/g, entityReplacer);\n                addAttribute(attrName, value, start - 1);\n                s = S_ATTR_END;\n              } else {\n                //fatalError: no end quot match\n                throw new Error('attribute value no end \\'' + c + '\\' match');\n              }\n            } else if (s == S_ATTR_NOQUOT_VALUE) {\n            value = source.slice(start, p).replace(/&#?\\w+;/g, entityReplacer); //console.log(attrName,value,start,p)\n\n            addAttribute(attrName, value, start); //console.dir(el)\n\n            errorHandler.warning('attribute \"' + attrName + '\" missed start quot(' + c + ')!!');\n            start = p + 1;\n            s = S_ATTR_END;\n          } else {\n            //fatalError: no equal before\n            throw new Error('attribute value must after \"=\"'); // No known test case\n          }\n\n          break;\n\n        case '/':\n          switch (s) {\n            case S_TAG:\n              el.setTagName(source.slice(start, p));\n\n            case S_ATTR_END:\n            case S_TAG_SPACE:\n            case S_TAG_CLOSE:\n              s = S_TAG_CLOSE;\n              el.closed = true;\n\n            case S_ATTR_NOQUOT_VALUE:\n            case S_ATTR:\n            case S_ATTR_SPACE:\n              break;\n            //case S_EQ:\n\n            default:\n              throw new Error(\"attribute invalid close char('/')\");\n            // No known test case\n          }\n\n          break;\n\n        case '':\n          //end document\n          errorHandler.error('unexpected end of input');\n\n          if (s == S_TAG) {\n            el.setTagName(source.slice(start, p));\n          }\n\n          return p;\n\n        case '>':\n          switch (s) {\n            case S_TAG:\n              el.setTagName(source.slice(start, p));\n\n            case S_ATTR_END:\n            case S_TAG_SPACE:\n            case S_TAG_CLOSE:\n              break;\n            //normal\n\n            case S_ATTR_NOQUOT_VALUE: //Compatible state\n\n            case S_ATTR:\n              value = source.slice(start, p);\n\n              if (value.slice(-1) === '/') {\n                el.closed = true;\n                value = value.slice(0, -1);\n              }\n\n            case S_ATTR_SPACE:\n              if (s === S_ATTR_SPACE) {\n                value = attrName;\n              }\n\n              if (s == S_ATTR_NOQUOT_VALUE) {\n                errorHandler.warning('attribute \"' + value + '\" missed quot(\")!');\n                addAttribute(attrName, value.replace(/&#?\\w+;/g, entityReplacer), start);\n              } else {\n                if (!NAMESPACE$1.isHTML(currentNSMap['']) || !value.match(/^(?:disabled|checked|selected)$/i)) {\n                  errorHandler.warning('attribute \"' + value + '\" missed value!! \"' + value + '\" instead!!');\n                }\n\n                addAttribute(value, value, start);\n              }\n\n              break;\n\n            case S_EQ:\n              throw new Error('attribute value missed!!');\n          } //\t\t\tconsole.log(tagName,tagNamePattern,tagNamePattern.test(tagName))\n\n\n          return p;\n\n        /*xml space '\\x20' | #x9 | #xD | #xA; */\n\n        case \"\\x80\":\n          c = ' ';\n\n        default:\n          if (c <= ' ') {\n            //space\n            switch (s) {\n              case S_TAG:\n                el.setTagName(source.slice(start, p)); //tagName\n\n                s = S_TAG_SPACE;\n                break;\n\n              case S_ATTR:\n                attrName = source.slice(start, p);\n                s = S_ATTR_SPACE;\n                break;\n\n              case S_ATTR_NOQUOT_VALUE:\n                var value = source.slice(start, p).replace(/&#?\\w+;/g, entityReplacer);\n                errorHandler.warning('attribute \"' + value + '\" missed quot(\")!!');\n                addAttribute(attrName, value, start);\n\n              case S_ATTR_END:\n                s = S_TAG_SPACE;\n                break;\n              //case S_TAG_SPACE:\n              //case S_EQ:\n              //case S_ATTR_SPACE:\n              //\tvoid();break;\n              //case S_TAG_CLOSE:\n              //ignore warning\n            }\n          } else {\n            //not space\n            //S_TAG,\tS_ATTR,\tS_EQ,\tS_ATTR_NOQUOT_VALUE\n            //S_ATTR_SPACE,\tS_ATTR_END,\tS_TAG_SPACE, S_TAG_CLOSE\n            switch (s) {\n              //case S_TAG:void();break;\n              //case S_ATTR:void();break;\n              //case S_ATTR_NOQUOT_VALUE:void();break;\n              case S_ATTR_SPACE:\n                el.tagName;\n\n                if (!NAMESPACE$1.isHTML(currentNSMap['']) || !attrName.match(/^(?:disabled|checked|selected)$/i)) {\n                  errorHandler.warning('attribute \"' + attrName + '\" missed value!! \"' + attrName + '\" instead2!!');\n                }\n\n                addAttribute(attrName, attrName, start);\n                start = p;\n                s = S_ATTR;\n                break;\n\n              case S_ATTR_END:\n                errorHandler.warning('attribute space is required\"' + attrName + '\"!!');\n\n              case S_TAG_SPACE:\n                s = S_ATTR;\n                start = p;\n                break;\n\n              case S_EQ:\n                s = S_ATTR_NOQUOT_VALUE;\n                start = p;\n                break;\n\n              case S_TAG_CLOSE:\n                throw new Error(\"elements closed character '/' and '>' must be connected to\");\n            }\n          }\n\n      } //end outer switch\n      //console.log('p++',p)\n\n\n      p++;\n    }\n  }\n  /**\n   * @return true if has new namespace define\n   */\n\n\n  function appendElement$1(el, domBuilder, currentNSMap) {\n    var tagName = el.tagName;\n    var localNSMap = null; //var currentNSMap = parseStack[parseStack.length-1].currentNSMap;\n\n    var i = el.length;\n\n    while (i--) {\n      var a = el[i];\n      var qName = a.qName;\n      var value = a.value;\n      var nsp = qName.indexOf(':');\n\n      if (nsp > 0) {\n        var prefix = a.prefix = qName.slice(0, nsp);\n        var localName = qName.slice(nsp + 1);\n        var nsPrefix = prefix === 'xmlns' && localName;\n      } else {\n        localName = qName;\n        prefix = null;\n        nsPrefix = qName === 'xmlns' && '';\n      } //can not set prefix,because prefix !== ''\n\n\n      a.localName = localName; //prefix == null for no ns prefix attribute \n\n      if (nsPrefix !== false) {\n        //hack!!\n        if (localNSMap == null) {\n          localNSMap = {}; //console.log(currentNSMap,0)\n\n          _copy(currentNSMap, currentNSMap = {}); //console.log(currentNSMap,1)\n\n        }\n\n        currentNSMap[nsPrefix] = localNSMap[nsPrefix] = value;\n        a.uri = NAMESPACE$1.XMLNS;\n        domBuilder.startPrefixMapping(nsPrefix, value);\n      }\n    }\n\n    var i = el.length;\n\n    while (i--) {\n      a = el[i];\n      var prefix = a.prefix;\n\n      if (prefix) {\n        //no prefix attribute has no namespace\n        if (prefix === 'xml') {\n          a.uri = NAMESPACE$1.XML;\n        }\n\n        if (prefix !== 'xmlns') {\n          a.uri = currentNSMap[prefix || '']; //{console.log('###'+a.qName,domBuilder.locator.systemId+'',currentNSMap,a.uri)}\n        }\n      }\n    }\n\n    var nsp = tagName.indexOf(':');\n\n    if (nsp > 0) {\n      prefix = el.prefix = tagName.slice(0, nsp);\n      localName = el.localName = tagName.slice(nsp + 1);\n    } else {\n      prefix = null; //important!!\n\n      localName = el.localName = tagName;\n    } //no prefix element has default namespace\n\n\n    var ns = el.uri = currentNSMap[prefix || ''];\n    domBuilder.startElement(ns, localName, tagName, el); //endPrefixMapping and startPrefixMapping have not any help for dom builder\n    //localNSMap = null\n\n    if (el.closed) {\n      domBuilder.endElement(ns, localName, tagName);\n\n      if (localNSMap) {\n        for (prefix in localNSMap) {\n          domBuilder.endPrefixMapping(prefix);\n        }\n      }\n    } else {\n      el.currentNSMap = currentNSMap;\n      el.localNSMap = localNSMap; //parseStack.push(el);\n\n      return true;\n    }\n  }\n\n  function parseHtmlSpecialContent(source, elStartEnd, tagName, entityReplacer, domBuilder) {\n    if (/^(?:script|textarea)$/i.test(tagName)) {\n      var elEndStart = source.indexOf('</' + tagName + '>', elStartEnd);\n      var text = source.substring(elStartEnd + 1, elEndStart);\n\n      if (/[&<]/.test(text)) {\n        if (/^script$/i.test(tagName)) {\n          //if(!/\\]\\]>/.test(text)){\n          //lexHandler.startCDATA();\n          domBuilder.characters(text, 0, text.length); //lexHandler.endCDATA();\n\n          return elEndStart; //}\n        } //}else{//text area\n\n\n        text = text.replace(/&#?\\w+;/g, entityReplacer);\n        domBuilder.characters(text, 0, text.length);\n        return elEndStart; //}\n      }\n    }\n\n    return elStartEnd + 1;\n  }\n\n  function fixSelfClosed(source, elStartEnd, tagName, closeMap) {\n    //if(tagName in closeMap){\n    var pos = closeMap[tagName];\n\n    if (pos == null) {\n      //console.log(tagName)\n      pos = source.lastIndexOf('</' + tagName + '>');\n\n      if (pos < elStartEnd) {\n        //忘记闭合\n        pos = source.lastIndexOf('</' + tagName);\n      }\n\n      closeMap[tagName] = pos;\n    }\n\n    return pos < elStartEnd; //} \n  }\n\n  function _copy(source, target) {\n    for (var n in source) {\n      target[n] = source[n];\n    }\n  }\n\n  function parseDCC(source, start, domBuilder, errorHandler) {\n    //sure start with '<!'\n    var next = source.charAt(start + 2);\n\n    switch (next) {\n      case '-':\n        if (source.charAt(start + 3) === '-') {\n          var end = source.indexOf('-->', start + 4); //append comment source.substring(4,end)//<!--\n\n          if (end > start) {\n            domBuilder.comment(source, start + 4, end - start - 4);\n            return end + 3;\n          } else {\n            errorHandler.error(\"Unclosed comment\");\n            return -1;\n          }\n        } else {\n          //error\n          return -1;\n        }\n\n      default:\n        if (source.substr(start + 3, 6) == 'CDATA[') {\n          var end = source.indexOf(']]>', start + 9);\n          domBuilder.startCDATA();\n          domBuilder.characters(source, start + 9, end - start - 9);\n          domBuilder.endCDATA();\n          return end + 3;\n        } //<!DOCTYPE\n        //startDTD(java.lang.String name, java.lang.String publicId, java.lang.String systemId) \n\n\n        var matchs = split(source, start);\n        var len = matchs.length;\n\n        if (len > 1 && /!doctype/i.test(matchs[0][0])) {\n          var name = matchs[1][0];\n          var pubid = false;\n          var sysid = false;\n\n          if (len > 3) {\n            if (/^public$/i.test(matchs[2][0])) {\n              pubid = matchs[3][0];\n              sysid = len > 4 && matchs[4][0];\n            } else if (/^system$/i.test(matchs[2][0])) {\n              sysid = matchs[3][0];\n            }\n          }\n\n          var lastMatch = matchs[len - 1];\n          domBuilder.startDTD(name, pubid, sysid);\n          domBuilder.endDTD();\n          return lastMatch.index + lastMatch[0].length;\n        }\n\n    }\n\n    return -1;\n  }\n\n  function parseInstruction(source, start, domBuilder) {\n    var end = source.indexOf('?>', start);\n\n    if (end) {\n      var match = source.substring(start, end).match(/^<\\?(\\S*)\\s*([\\s\\S]*?)\\s*$/);\n\n      if (match) {\n        match[0].length;\n        domBuilder.processingInstruction(match[1], match[2]);\n        return end + 2;\n      } else {\n        //error\n        return -1;\n      }\n    }\n\n    return -1;\n  }\n\n  function ElementAttributes() {\n    this.attributeNames = {};\n  }\n\n  ElementAttributes.prototype = {\n    setTagName: function setTagName(tagName) {\n      if (!tagNamePattern.test(tagName)) {\n        throw new Error('invalid tagName:' + tagName);\n      }\n\n      this.tagName = tagName;\n    },\n    addValue: function addValue(qName, value, offset) {\n      if (!tagNamePattern.test(qName)) {\n        throw new Error('invalid attribute:' + qName);\n      }\n\n      this.attributeNames[qName] = this.length;\n      this[this.length++] = {\n        qName: qName,\n        value: value,\n        offset: offset\n      };\n    },\n    length: 0,\n    getLocalName: function getLocalName(i) {\n      return this[i].localName;\n    },\n    getLocator: function getLocator(i) {\n      return this[i].locator;\n    },\n    getQName: function getQName(i) {\n      return this[i].qName;\n    },\n    getURI: function getURI(i) {\n      return this[i].uri;\n    },\n    getValue: function getValue(i) {\n      return this[i].value;\n    } //\t,getIndex:function(uri, localName)){\n    //\t\tif(localName){\n    //\t\t\t\n    //\t\t}else{\n    //\t\t\tvar qName = uri\n    //\t\t}\n    //\t},\n    //\tgetValue:function(){return this.getValue(this.getIndex.apply(this,arguments))},\n    //\tgetType:function(uri,localName){}\n    //\tgetType:function(i){},\n\n  };\n\n  function split(source, start) {\n    var match;\n    var buf = [];\n    var reg = /'[^']+'|\"[^\"]+\"|[^\\s<>\\/=]+=?|(\\/?\\s*>|<)/g;\n    reg.lastIndex = start;\n    reg.exec(source); //skip <\n\n    while (match = reg.exec(source)) {\n      buf.push(match);\n      if (match[1]) return buf;\n    }\n  }\n\n  var XMLReader_1 = XMLReader$1;\n  var ParseError_1 = ParseError$1;\n  var sax = {\n    XMLReader: XMLReader_1,\n    ParseError: ParseError_1\n  };\n\n  var DOMImplementation = dom.DOMImplementation;\n  var NAMESPACE = conventions.NAMESPACE;\n  var ParseError = sax.ParseError;\n  var XMLReader = sax.XMLReader;\n\n  function DOMParser$1(options) {\n    this.options = options || {\n      locator: {}\n    };\n  }\n\n  DOMParser$1.prototype.parseFromString = function (source, mimeType) {\n    var options = this.options;\n    var sax = new XMLReader();\n    var domBuilder = options.domBuilder || new DOMHandler(); //contentHandler and LexicalHandler\n\n    var errorHandler = options.errorHandler;\n    var locator = options.locator;\n    var defaultNSMap = options.xmlns || {};\n    var isHTML = /\\/x?html?$/.test(mimeType); //mimeType.toLowerCase().indexOf('html') > -1;\n\n    var entityMap = isHTML ? entities.HTML_ENTITIES : entities.XML_ENTITIES;\n\n    if (locator) {\n      domBuilder.setDocumentLocator(locator);\n    }\n\n    sax.errorHandler = buildErrorHandler(errorHandler, domBuilder, locator);\n    sax.domBuilder = options.domBuilder || domBuilder;\n\n    if (isHTML) {\n      defaultNSMap[''] = NAMESPACE.HTML;\n    }\n\n    defaultNSMap.xml = defaultNSMap.xml || NAMESPACE.XML;\n\n    if (source && typeof source === 'string') {\n      sax.parse(source, defaultNSMap, entityMap);\n    } else {\n      sax.errorHandler.error(\"invalid doc source\");\n    }\n\n    return domBuilder.doc;\n  };\n\n  function buildErrorHandler(errorImpl, domBuilder, locator) {\n    if (!errorImpl) {\n      if (domBuilder instanceof DOMHandler) {\n        return domBuilder;\n      }\n\n      errorImpl = domBuilder;\n    }\n\n    var errorHandler = {};\n    var isCallback = errorImpl instanceof Function;\n    locator = locator || {};\n\n    function build(key) {\n      var fn = errorImpl[key];\n\n      if (!fn && isCallback) {\n        fn = errorImpl.length == 2 ? function (msg) {\n          errorImpl(key, msg);\n        } : errorImpl;\n      }\n\n      errorHandler[key] = fn && function (msg) {\n        fn('[xmldom ' + key + ']\\t' + msg + _locator(locator));\n      } || function () {};\n    }\n\n    build('warning');\n    build('error');\n    build('fatalError');\n    return errorHandler;\n  } //console.log('#\\n\\n\\n\\n\\n\\n\\n####')\n\n  /**\n   * +ContentHandler+ErrorHandler\n   * +LexicalHandler+EntityResolver2\n   * -DeclHandler-DTDHandler\n   *\n   * DefaultHandler:EntityResolver, DTDHandler, ContentHandler, ErrorHandler\n   * DefaultHandler2:DefaultHandler,LexicalHandler, DeclHandler, EntityResolver2\n   * @link http://www.saxproject.org/apidoc/org/xml/sax/helpers/DefaultHandler.html\n   */\n\n\n  function DOMHandler() {\n    this.cdata = false;\n  }\n\n  function position(locator, node) {\n    node.lineNumber = locator.lineNumber;\n    node.columnNumber = locator.columnNumber;\n  }\n  /**\n   * @see org.xml.sax.ContentHandler#startDocument\n   * @link http://www.saxproject.org/apidoc/org/xml/sax/ContentHandler.html\n   */\n\n\n  DOMHandler.prototype = {\n    startDocument: function startDocument() {\n      this.doc = new DOMImplementation().createDocument(null, null, null);\n\n      if (this.locator) {\n        this.doc.documentURI = this.locator.systemId;\n      }\n    },\n    startElement: function startElement(namespaceURI, localName, qName, attrs) {\n      var doc = this.doc;\n      var el = doc.createElementNS(namespaceURI, qName || localName);\n      var len = attrs.length;\n      appendElement(this, el);\n      this.currentElement = el;\n      this.locator && position(this.locator, el);\n\n      for (var i = 0; i < len; i++) {\n        var namespaceURI = attrs.getURI(i);\n        var value = attrs.getValue(i);\n        var qName = attrs.getQName(i);\n        var attr = doc.createAttributeNS(namespaceURI, qName);\n        this.locator && position(attrs.getLocator(i), attr);\n        attr.value = attr.nodeValue = value;\n        el.setAttributeNode(attr);\n      }\n    },\n    endElement: function endElement(namespaceURI, localName, qName) {\n      var current = this.currentElement;\n      current.tagName;\n      this.currentElement = current.parentNode;\n    },\n    startPrefixMapping: function startPrefixMapping(prefix, uri) {},\n    endPrefixMapping: function endPrefixMapping(prefix) {},\n    processingInstruction: function processingInstruction(target, data) {\n      var ins = this.doc.createProcessingInstruction(target, data);\n      this.locator && position(this.locator, ins);\n      appendElement(this, ins);\n    },\n    ignorableWhitespace: function ignorableWhitespace(ch, start, length) {},\n    characters: function characters(chars, start, length) {\n      chars = _toString.apply(this, arguments); //console.log(chars)\n\n      if (chars) {\n        if (this.cdata) {\n          var charNode = this.doc.createCDATASection(chars);\n        } else {\n          var charNode = this.doc.createTextNode(chars);\n        }\n\n        if (this.currentElement) {\n          this.currentElement.appendChild(charNode);\n        } else if (/^\\s*$/.test(chars)) {\n          this.doc.appendChild(charNode); //process xml\n        }\n\n        this.locator && position(this.locator, charNode);\n      }\n    },\n    skippedEntity: function skippedEntity(name) {},\n    endDocument: function endDocument() {\n      this.doc.normalize();\n    },\n    setDocumentLocator: function setDocumentLocator(locator) {\n      if (this.locator = locator) {\n        // && !('lineNumber' in locator)){\n        locator.lineNumber = 0;\n      }\n    },\n    //LexicalHandler\n    comment: function comment(chars, start, length) {\n      chars = _toString.apply(this, arguments);\n      var comm = this.doc.createComment(chars);\n      this.locator && position(this.locator, comm);\n      appendElement(this, comm);\n    },\n    startCDATA: function startCDATA() {\n      //used in characters() methods\n      this.cdata = true;\n    },\n    endCDATA: function endCDATA() {\n      this.cdata = false;\n    },\n    startDTD: function startDTD(name, publicId, systemId) {\n      var impl = this.doc.implementation;\n\n      if (impl && impl.createDocumentType) {\n        var dt = impl.createDocumentType(name, publicId, systemId);\n        this.locator && position(this.locator, dt);\n        appendElement(this, dt);\n        this.doc.doctype = dt;\n      }\n    },\n\n    /**\n     * @see org.xml.sax.ErrorHandler\n     * @link http://www.saxproject.org/apidoc/org/xml/sax/ErrorHandler.html\n     */\n    warning: function warning(error) {\n      console.warn('[xmldom warning]\\t' + error, _locator(this.locator));\n    },\n    error: function error(_error) {\n      console.error('[xmldom error]\\t' + _error, _locator(this.locator));\n    },\n    fatalError: function fatalError(error) {\n      throw new ParseError(error, this.locator);\n    }\n  };\n\n  function _locator(l) {\n    if (l) {\n      return '\\n@' + (l.systemId || '') + '#[line:' + l.lineNumber + ',col:' + l.columnNumber + ']';\n    }\n  }\n\n  function _toString(chars, start, length) {\n    if (typeof chars == 'string') {\n      return chars.substr(start, length);\n    } else {\n      //java sax connect width xmldom on rhino(what about: \"? && !(chars instanceof String)\")\n      if (chars.length >= start + length || start) {\n        return new java.lang.String(chars, start, length) + '';\n      }\n\n      return chars;\n    }\n  }\n  /*\n   * @link http://www.saxproject.org/apidoc/org/xml/sax/ext/LexicalHandler.html\n   * used method of org.xml.sax.ext.LexicalHandler:\n   *  #comment(chars, start, length)\n   *  #startCDATA()\n   *  #endCDATA()\n   *  #startDTD(name, publicId, systemId)\n   *\n   *\n   * IGNORED method of org.xml.sax.ext.LexicalHandler:\n   *  #endDTD()\n   *  #startEntity(name)\n   *  #endEntity(name)\n   *\n   *\n   * @link http://www.saxproject.org/apidoc/org/xml/sax/ext/DeclHandler.html\n   * IGNORED method of org.xml.sax.ext.DeclHandler\n   * \t#attributeDecl(eName, aName, type, mode, value)\n   *  #elementDecl(name, model)\n   *  #externalEntityDecl(name, publicId, systemId)\n   *  #internalEntityDecl(name, value)\n   * @link http://www.saxproject.org/apidoc/org/xml/sax/ext/EntityResolver2.html\n   * IGNORED method of org.xml.sax.EntityResolver2\n   *  #resolveEntity(String name,String publicId,String baseURI,String systemId)\n   *  #resolveEntity(publicId, systemId)\n   *  #getExternalSubset(name, baseURI)\n   * @link http://www.saxproject.org/apidoc/org/xml/sax/DTDHandler.html\n   * IGNORED method of org.xml.sax.DTDHandler\n   *  #notationDecl(name, publicId, systemId) {};\n   *  #unparsedEntityDecl(name, publicId, systemId, notationName) {};\n   */\n\n\n  \"endDTD,startEntity,endEntity,attributeDecl,elementDecl,externalEntityDecl,internalEntityDecl,resolveEntity,getExternalSubset,notationDecl,unparsedEntityDecl\".replace(/\\w+/g, function (key) {\n    DOMHandler.prototype[key] = function () {\n      return null;\n    };\n  });\n  /* Private static helpers treated below as private instance methods, so don't need to add these to the public API; we might use a Relator to also get rid of non-standard public properties */\n\n  function appendElement(hander, node) {\n    if (!hander.currentElement) {\n      hander.doc.appendChild(node);\n    } else {\n      hander.currentElement.appendChild(node);\n    }\n  } //appendChild and setAttributeNS are preformance key\n\n\n  var __DOMHandler = DOMHandler;\n  var DOMParser_1 = DOMParser$1;\n  /**\n   * @deprecated Import/require from main entry point instead\n   */\n\n  var DOMImplementation_1 = dom.DOMImplementation;\n  /**\n   * @deprecated Import/require from main entry point instead\n   */\n\n  var XMLSerializer = dom.XMLSerializer;\n  var domParser = {\n    __DOMHandler: __DOMHandler,\n    DOMParser: DOMParser_1,\n    DOMImplementation: DOMImplementation_1,\n    XMLSerializer: XMLSerializer\n  };\n\n  var DOMParser = domParser.DOMParser;\n\n  /*! @name mpd-parser @version 0.21.1 @license Apache-2.0 */\n\n  var isObject = function isObject(obj) {\n    return !!obj && typeof obj === 'object';\n  };\n\n  var merge = function merge() {\n    for (var _len = arguments.length, objects = new Array(_len), _key = 0; _key < _len; _key++) {\n      objects[_key] = arguments[_key];\n    }\n\n    return objects.reduce(function (result, source) {\n      if (typeof source !== 'object') {\n        return result;\n      }\n\n      Object.keys(source).forEach(function (key) {\n        if (Array.isArray(result[key]) && Array.isArray(source[key])) {\n          result[key] = result[key].concat(source[key]);\n        } else if (isObject(result[key]) && isObject(source[key])) {\n          result[key] = merge(result[key], source[key]);\n        } else {\n          result[key] = source[key];\n        }\n      });\n      return result;\n    }, {});\n  };\n\n  var values = function values(o) {\n    return Object.keys(o).map(function (k) {\n      return o[k];\n    });\n  };\n\n  var range = function range(start, end) {\n    var result = [];\n\n    for (var i = start; i < end; i++) {\n      result.push(i);\n    }\n\n    return result;\n  };\n\n  var flatten = function flatten(lists) {\n    return lists.reduce(function (x, y) {\n      return x.concat(y);\n    }, []);\n  };\n\n  var from = function from(list) {\n    if (!list.length) {\n      return [];\n    }\n\n    var result = [];\n\n    for (var i = 0; i < list.length; i++) {\n      result.push(list[i]);\n    }\n\n    return result;\n  };\n\n  var findIndexes = function findIndexes(l, key) {\n    return l.reduce(function (a, e, i) {\n      if (e[key]) {\n        a.push(i);\n      }\n\n      return a;\n    }, []);\n  };\n  /**\n   * Returns the first index that satisfies the matching function, or -1 if not found.\n   *\n   * Only necessary because of IE11 support.\n   *\n   * @param {Array} list - the list to search through\n   * @param {Function} matchingFunction - the matching function\n   *\n   * @return {number} the matching index or -1 if not found\n   */\n\n\n  var findIndex = function findIndex(list, matchingFunction) {\n    for (var i = 0; i < list.length; i++) {\n      if (matchingFunction(list[i])) {\n        return i;\n      }\n    }\n\n    return -1;\n  };\n  /**\n   * Returns a union of the included lists provided each element can be identified by a key.\n   *\n   * @param {Array} list - list of lists to get the union of\n   * @param {Function} keyFunction - the function to use as a key for each element\n   *\n   * @return {Array} the union of the arrays\n   */\n\n\n  var union = function union(lists, keyFunction) {\n    return values(lists.reduce(function (acc, list) {\n      list.forEach(function (el) {\n        acc[keyFunction(el)] = el;\n      });\n      return acc;\n    }, {}));\n  };\n\n  var errors = {\n    INVALID_NUMBER_OF_PERIOD: 'INVALID_NUMBER_OF_PERIOD',\n    DASH_EMPTY_MANIFEST: 'DASH_EMPTY_MANIFEST',\n    DASH_INVALID_XML: 'DASH_INVALID_XML',\n    NO_BASE_URL: 'NO_BASE_URL',\n    MISSING_SEGMENT_INFORMATION: 'MISSING_SEGMENT_INFORMATION',\n    SEGMENT_TIME_UNSPECIFIED: 'SEGMENT_TIME_UNSPECIFIED',\n    UNSUPPORTED_UTC_TIMING_SCHEME: 'UNSUPPORTED_UTC_TIMING_SCHEME'\n  };\n  /**\n   * @typedef {Object} SingleUri\n   * @property {string} uri - relative location of segment\n   * @property {string} resolvedUri - resolved location of segment\n   * @property {Object} byterange - Object containing information on how to make byte range\n   *   requests following byte-range-spec per RFC2616.\n   * @property {String} byterange.length - length of range request\n   * @property {String} byterange.offset - byte offset of range request\n   *\n   * @see https://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.35.1\n   */\n\n  /**\n   * Converts a URLType node (5.3.9.2.3 Table 13) to a segment object\n   * that conforms to how m3u8-parser is structured\n   *\n   * @see https://github.com/videojs/m3u8-parser\n   *\n   * @param {string} baseUrl - baseUrl provided by <BaseUrl> nodes\n   * @param {string} source - source url for segment\n   * @param {string} range - optional range used for range calls,\n   *   follows  RFC 2616, Clause 14.35.1\n   * @return {SingleUri} full segment information transformed into a format similar\n   *   to m3u8-parser\n   */\n\n  var urlTypeToSegment = function urlTypeToSegment(_ref) {\n    var _ref$baseUrl = _ref.baseUrl,\n        baseUrl = _ref$baseUrl === void 0 ? '' : _ref$baseUrl,\n        _ref$source = _ref.source,\n        source = _ref$source === void 0 ? '' : _ref$source,\n        _ref$range = _ref.range,\n        range = _ref$range === void 0 ? '' : _ref$range,\n        _ref$indexRange = _ref.indexRange,\n        indexRange = _ref$indexRange === void 0 ? '' : _ref$indexRange;\n    var segment = {\n      uri: source,\n      resolvedUri: resolveUrl$1(baseUrl || '', source)\n    };\n\n    if (range || indexRange) {\n      var rangeStr = range ? range : indexRange;\n      var ranges = rangeStr.split('-'); // default to parsing this as a BigInt if possible\n\n      var startRange = window.BigInt ? window.BigInt(ranges[0]) : parseInt(ranges[0], 10);\n      var endRange = window.BigInt ? window.BigInt(ranges[1]) : parseInt(ranges[1], 10); // convert back to a number if less than MAX_SAFE_INTEGER\n\n      if (startRange < Number.MAX_SAFE_INTEGER && typeof startRange === 'bigint') {\n        startRange = Number(startRange);\n      }\n\n      if (endRange < Number.MAX_SAFE_INTEGER && typeof endRange === 'bigint') {\n        endRange = Number(endRange);\n      }\n\n      var length;\n\n      if (typeof endRange === 'bigint' || typeof startRange === 'bigint') {\n        length = window.BigInt(endRange) - window.BigInt(startRange) + window.BigInt(1);\n      } else {\n        length = endRange - startRange + 1;\n      }\n\n      if (typeof length === 'bigint' && length < Number.MAX_SAFE_INTEGER) {\n        length = Number(length);\n      } // byterange should be inclusive according to\n      // RFC 2616, Clause 14.35.1\n\n\n      segment.byterange = {\n        length: length,\n        offset: startRange\n      };\n    }\n\n    return segment;\n  };\n\n  var byteRangeToString = function byteRangeToString(byterange) {\n    // `endRange` is one less than `offset + length` because the HTTP range\n    // header uses inclusive ranges\n    var endRange;\n\n    if (typeof byterange.offset === 'bigint' || typeof byterange.length === 'bigint') {\n      endRange = window.BigInt(byterange.offset) + window.BigInt(byterange.length) - window.BigInt(1);\n    } else {\n      endRange = byterange.offset + byterange.length - 1;\n    }\n\n    return byterange.offset + \"-\" + endRange;\n  };\n  /**\n   * parse the end number attribue that can be a string\n   * number, or undefined.\n   *\n   * @param {string|number|undefined} endNumber\n   *        The end number attribute.\n   *\n   * @return {number|null}\n   *          The result of parsing the end number.\n   */\n\n\n  var parseEndNumber = function parseEndNumber(endNumber) {\n    if (endNumber && typeof endNumber !== 'number') {\n      endNumber = parseInt(endNumber, 10);\n    }\n\n    if (isNaN(endNumber)) {\n      return null;\n    }\n\n    return endNumber;\n  };\n  /**\n   * Functions for calculating the range of available segments in static and dynamic\n   * manifests.\n   */\n\n\n  var segmentRange = {\n    /**\n     * Returns the entire range of available segments for a static MPD\n     *\n     * @param {Object} attributes\n     *        Inheritied MPD attributes\n     * @return {{ start: number, end: number }}\n     *         The start and end numbers for available segments\n     */\n    \"static\": function _static(attributes) {\n      var duration = attributes.duration,\n          _attributes$timescale = attributes.timescale,\n          timescale = _attributes$timescale === void 0 ? 1 : _attributes$timescale,\n          sourceDuration = attributes.sourceDuration,\n          periodDuration = attributes.periodDuration;\n      var endNumber = parseEndNumber(attributes.endNumber);\n      var segmentDuration = duration / timescale;\n\n      if (typeof endNumber === 'number') {\n        return {\n          start: 0,\n          end: endNumber\n        };\n      }\n\n      if (typeof periodDuration === 'number') {\n        return {\n          start: 0,\n          end: periodDuration / segmentDuration\n        };\n      }\n\n      return {\n        start: 0,\n        end: sourceDuration / segmentDuration\n      };\n    },\n\n    /**\n     * Returns the current live window range of available segments for a dynamic MPD\n     *\n     * @param {Object} attributes\n     *        Inheritied MPD attributes\n     * @return {{ start: number, end: number }}\n     *         The start and end numbers for available segments\n     */\n    dynamic: function dynamic(attributes) {\n      var NOW = attributes.NOW,\n          clientOffset = attributes.clientOffset,\n          availabilityStartTime = attributes.availabilityStartTime,\n          _attributes$timescale2 = attributes.timescale,\n          timescale = _attributes$timescale2 === void 0 ? 1 : _attributes$timescale2,\n          duration = attributes.duration,\n          _attributes$periodSta = attributes.periodStart,\n          periodStart = _attributes$periodSta === void 0 ? 0 : _attributes$periodSta,\n          _attributes$minimumUp = attributes.minimumUpdatePeriod,\n          minimumUpdatePeriod = _attributes$minimumUp === void 0 ? 0 : _attributes$minimumUp,\n          _attributes$timeShift = attributes.timeShiftBufferDepth,\n          timeShiftBufferDepth = _attributes$timeShift === void 0 ? Infinity : _attributes$timeShift;\n      var endNumber = parseEndNumber(attributes.endNumber); // clientOffset is passed in at the top level of mpd-parser and is an offset calculated\n      // after retrieving UTC server time.\n\n      var now = (NOW + clientOffset) / 1000; // WC stands for Wall Clock.\n      // Convert the period start time to EPOCH.\n\n      var periodStartWC = availabilityStartTime + periodStart; // Period end in EPOCH is manifest's retrieval time + time until next update.\n\n      var periodEndWC = now + minimumUpdatePeriod;\n      var periodDuration = periodEndWC - periodStartWC;\n      var segmentCount = Math.ceil(periodDuration * timescale / duration);\n      var availableStart = Math.floor((now - periodStartWC - timeShiftBufferDepth) * timescale / duration);\n      var availableEnd = Math.floor((now - periodStartWC) * timescale / duration);\n      return {\n        start: Math.max(0, availableStart),\n        end: typeof endNumber === 'number' ? endNumber : Math.min(segmentCount, availableEnd)\n      };\n    }\n  };\n  /**\n   * Maps a range of numbers to objects with information needed to build the corresponding\n   * segment list\n   *\n   * @name toSegmentsCallback\n   * @function\n   * @param {number} number\n   *        Number of the segment\n   * @param {number} index\n   *        Index of the number in the range list\n   * @return {{ number: Number, duration: Number, timeline: Number, time: Number }}\n   *         Object with segment timing and duration info\n   */\n\n  /**\n   * Returns a callback for Array.prototype.map for mapping a range of numbers to\n   * information needed to build the segment list.\n   *\n   * @param {Object} attributes\n   *        Inherited MPD attributes\n   * @return {toSegmentsCallback}\n   *         Callback map function\n   */\n\n  var toSegments = function toSegments(attributes) {\n    return function (number) {\n      var duration = attributes.duration,\n          _attributes$timescale3 = attributes.timescale,\n          timescale = _attributes$timescale3 === void 0 ? 1 : _attributes$timescale3,\n          periodStart = attributes.periodStart,\n          _attributes$startNumb = attributes.startNumber,\n          startNumber = _attributes$startNumb === void 0 ? 1 : _attributes$startNumb;\n      return {\n        number: startNumber + number,\n        duration: duration / timescale,\n        timeline: periodStart,\n        time: number * duration\n      };\n    };\n  };\n  /**\n   * Returns a list of objects containing segment timing and duration info used for\n   * building the list of segments. This uses the @duration attribute specified\n   * in the MPD manifest to derive the range of segments.\n   *\n   * @param {Object} attributes\n   *        Inherited MPD attributes\n   * @return {{number: number, duration: number, time: number, timeline: number}[]}\n   *         List of Objects with segment timing and duration info\n   */\n\n\n  var parseByDuration = function parseByDuration(attributes) {\n    var type = attributes.type,\n        duration = attributes.duration,\n        _attributes$timescale4 = attributes.timescale,\n        timescale = _attributes$timescale4 === void 0 ? 1 : _attributes$timescale4,\n        periodDuration = attributes.periodDuration,\n        sourceDuration = attributes.sourceDuration;\n\n    var _segmentRange$type = segmentRange[type](attributes),\n        start = _segmentRange$type.start,\n        end = _segmentRange$type.end;\n\n    var segments = range(start, end).map(toSegments(attributes));\n\n    if (type === 'static') {\n      var index = segments.length - 1; // section is either a period or the full source\n\n      var sectionDuration = typeof periodDuration === 'number' ? periodDuration : sourceDuration; // final segment may be less than full segment duration\n\n      segments[index].duration = sectionDuration - duration / timescale * index;\n    }\n\n    return segments;\n  };\n  /**\n   * Translates SegmentBase into a set of segments.\n   * (DASH SPEC Section 5.3.9.3.2) contains a set of <SegmentURL> nodes.  Each\n   * node should be translated into segment.\n   *\n   * @param {Object} attributes\n   *   Object containing all inherited attributes from parent elements with attribute\n   *   names as keys\n   * @return {Object.<Array>} list of segments\n   */\n\n\n  var segmentsFromBase = function segmentsFromBase(attributes) {\n    var baseUrl = attributes.baseUrl,\n        _attributes$initializ = attributes.initialization,\n        initialization = _attributes$initializ === void 0 ? {} : _attributes$initializ,\n        sourceDuration = attributes.sourceDuration,\n        _attributes$indexRang = attributes.indexRange,\n        indexRange = _attributes$indexRang === void 0 ? '' : _attributes$indexRang,\n        periodStart = attributes.periodStart,\n        presentationTime = attributes.presentationTime,\n        _attributes$number = attributes.number,\n        number = _attributes$number === void 0 ? 0 : _attributes$number,\n        duration = attributes.duration; // base url is required for SegmentBase to work, per spec (Section 5.3.9.2.1)\n\n    if (!baseUrl) {\n      throw new Error(errors.NO_BASE_URL);\n    }\n\n    var initSegment = urlTypeToSegment({\n      baseUrl: baseUrl,\n      source: initialization.sourceURL,\n      range: initialization.range\n    });\n    var segment = urlTypeToSegment({\n      baseUrl: baseUrl,\n      source: baseUrl,\n      indexRange: indexRange\n    });\n    segment.map = initSegment; // If there is a duration, use it, otherwise use the given duration of the source\n    // (since SegmentBase is only for one total segment)\n\n    if (duration) {\n      var segmentTimeInfo = parseByDuration(attributes);\n\n      if (segmentTimeInfo.length) {\n        segment.duration = segmentTimeInfo[0].duration;\n        segment.timeline = segmentTimeInfo[0].timeline;\n      }\n    } else if (sourceDuration) {\n      segment.duration = sourceDuration;\n      segment.timeline = periodStart;\n    } // If presentation time is provided, these segments are being generated by SIDX\n    // references, and should use the time provided. For the general case of SegmentBase,\n    // there should only be one segment in the period, so its presentation time is the same\n    // as its period start.\n\n\n    segment.presentationTime = presentationTime || periodStart;\n    segment.number = number;\n    return [segment];\n  };\n  /**\n   * Given a playlist, a sidx box, and a baseUrl, update the segment list of the playlist\n   * according to the sidx information given.\n   *\n   * playlist.sidx has metadadata about the sidx where-as the sidx param\n   * is the parsed sidx box itself.\n   *\n   * @param {Object} playlist the playlist to update the sidx information for\n   * @param {Object} sidx the parsed sidx box\n   * @return {Object} the playlist object with the updated sidx information\n   */\n\n\n  var addSidxSegmentsToPlaylist$1 = function addSidxSegmentsToPlaylist(playlist, sidx, baseUrl) {\n    // Retain init segment information\n    var initSegment = playlist.sidx.map ? playlist.sidx.map : null; // Retain source duration from initial main manifest parsing\n\n    var sourceDuration = playlist.sidx.duration; // Retain source timeline\n\n    var timeline = playlist.timeline || 0;\n    var sidxByteRange = playlist.sidx.byterange;\n    var sidxEnd = sidxByteRange.offset + sidxByteRange.length; // Retain timescale of the parsed sidx\n\n    var timescale = sidx.timescale; // referenceType 1 refers to other sidx boxes\n\n    var mediaReferences = sidx.references.filter(function (r) {\n      return r.referenceType !== 1;\n    });\n    var segments = [];\n    var type = playlist.endList ? 'static' : 'dynamic';\n    var periodStart = playlist.sidx.timeline;\n    var presentationTime = periodStart;\n    var number = playlist.mediaSequence || 0; // firstOffset is the offset from the end of the sidx box\n\n    var startIndex; // eslint-disable-next-line\n\n    if (typeof sidx.firstOffset === 'bigint') {\n      startIndex = window.BigInt(sidxEnd) + sidx.firstOffset;\n    } else {\n      startIndex = sidxEnd + sidx.firstOffset;\n    }\n\n    for (var i = 0; i < mediaReferences.length; i++) {\n      var reference = sidx.references[i]; // size of the referenced (sub)segment\n\n      var size = reference.referencedSize; // duration of the referenced (sub)segment, in  the  timescale\n      // this will be converted to seconds when generating segments\n\n      var duration = reference.subsegmentDuration; // should be an inclusive range\n\n      var endIndex = void 0; // eslint-disable-next-line\n\n      if (typeof startIndex === 'bigint') {\n        endIndex = startIndex + window.BigInt(size) - window.BigInt(1);\n      } else {\n        endIndex = startIndex + size - 1;\n      }\n\n      var indexRange = startIndex + \"-\" + endIndex;\n      var attributes = {\n        baseUrl: baseUrl,\n        timescale: timescale,\n        timeline: timeline,\n        periodStart: periodStart,\n        presentationTime: presentationTime,\n        number: number,\n        duration: duration,\n        sourceDuration: sourceDuration,\n        indexRange: indexRange,\n        type: type\n      };\n      var segment = segmentsFromBase(attributes)[0];\n\n      if (initSegment) {\n        segment.map = initSegment;\n      }\n\n      segments.push(segment);\n\n      if (typeof startIndex === 'bigint') {\n        startIndex += window.BigInt(size);\n      } else {\n        startIndex += size;\n      }\n\n      presentationTime += duration / timescale;\n      number++;\n    }\n\n    playlist.segments = segments;\n    return playlist;\n  };\n\n  var SUPPORTED_MEDIA_TYPES = ['AUDIO', 'SUBTITLES']; // allow one 60fps frame as leniency (arbitrarily chosen)\n\n  var TIME_FUDGE = 1 / 60;\n  /**\n   * Given a list of timelineStarts, combines, dedupes, and sorts them.\n   *\n   * @param {TimelineStart[]} timelineStarts - list of timeline starts\n   *\n   * @return {TimelineStart[]} the combined and deduped timeline starts\n   */\n\n  var getUniqueTimelineStarts = function getUniqueTimelineStarts(timelineStarts) {\n    return union(timelineStarts, function (_ref) {\n      var timeline = _ref.timeline;\n      return timeline;\n    }).sort(function (a, b) {\n      return a.timeline > b.timeline ? 1 : -1;\n    });\n  };\n  /**\n   * Finds the playlist with the matching NAME attribute.\n   *\n   * @param {Array} playlists - playlists to search through\n   * @param {string} name - the NAME attribute to search for\n   *\n   * @return {Object|null} the matching playlist object, or null\n   */\n\n\n  var findPlaylistWithName = function findPlaylistWithName(playlists, name) {\n    for (var i = 0; i < playlists.length; i++) {\n      if (playlists[i].attributes.NAME === name) {\n        return playlists[i];\n      }\n    }\n\n    return null;\n  };\n  /**\n   * Gets a flattened array of media group playlists.\n   *\n   * @param {Object} manifest - the main manifest object\n   *\n   * @return {Array} the media group playlists\n   */\n\n\n  var getMediaGroupPlaylists = function getMediaGroupPlaylists(manifest) {\n    var mediaGroupPlaylists = [];\n    forEachMediaGroup$1(manifest, SUPPORTED_MEDIA_TYPES, function (properties, type, group, label) {\n      mediaGroupPlaylists = mediaGroupPlaylists.concat(properties.playlists || []);\n    });\n    return mediaGroupPlaylists;\n  };\n  /**\n   * Updates the playlist's media sequence numbers.\n   *\n   * @param {Object} config - options object\n   * @param {Object} config.playlist - the playlist to update\n   * @param {number} config.mediaSequence - the mediaSequence number to start with\n   */\n\n\n  var updateMediaSequenceForPlaylist = function updateMediaSequenceForPlaylist(_ref2) {\n    var playlist = _ref2.playlist,\n        mediaSequence = _ref2.mediaSequence;\n    playlist.mediaSequence = mediaSequence;\n    playlist.segments.forEach(function (segment, index) {\n      segment.number = playlist.mediaSequence + index;\n    });\n  };\n  /**\n   * Updates the media and discontinuity sequence numbers of newPlaylists given oldPlaylists\n   * and a complete list of timeline starts.\n   *\n   * If no matching playlist is found, only the discontinuity sequence number of the playlist\n   * will be updated.\n   *\n   * Since early available timelines are not supported, at least one segment must be present.\n   *\n   * @param {Object} config - options object\n   * @param {Object[]} oldPlaylists - the old playlists to use as a reference\n   * @param {Object[]} newPlaylists - the new playlists to update\n   * @param {Object} timelineStarts - all timelineStarts seen in the stream to this point\n   */\n\n\n  var updateSequenceNumbers = function updateSequenceNumbers(_ref3) {\n    var oldPlaylists = _ref3.oldPlaylists,\n        newPlaylists = _ref3.newPlaylists,\n        timelineStarts = _ref3.timelineStarts;\n    newPlaylists.forEach(function (playlist) {\n      playlist.discontinuitySequence = findIndex(timelineStarts, function (_ref4) {\n        var timeline = _ref4.timeline;\n        return timeline === playlist.timeline;\n      }); // Playlists NAMEs come from DASH Representation IDs, which are mandatory\n      // (see ISO_23009-1-2012 5.3.5.2).\n      //\n      // If the same Representation existed in a prior Period, it will retain the same NAME.\n\n      var oldPlaylist = findPlaylistWithName(oldPlaylists, playlist.attributes.NAME);\n\n      if (!oldPlaylist) {\n        // Since this is a new playlist, the media sequence values can start from 0 without\n        // consequence.\n        return;\n      } // TODO better support for live SIDX\n      //\n      // As of this writing, mpd-parser does not support multiperiod SIDX (in live or VOD).\n      // This is evident by a playlist only having a single SIDX reference. In a multiperiod\n      // playlist there would need to be multiple SIDX references. In addition, live SIDX is\n      // not supported when the SIDX properties change on refreshes.\n      //\n      // In the future, if support needs to be added, the merging logic here can be called\n      // after SIDX references are resolved. For now, exit early to prevent exceptions being\n      // thrown due to undefined references.\n\n\n      if (playlist.sidx) {\n        return;\n      } // Since we don't yet support early available timelines, we don't need to support\n      // playlists with no segments.\n\n\n      var firstNewSegment = playlist.segments[0];\n      var oldMatchingSegmentIndex = findIndex(oldPlaylist.segments, function (oldSegment) {\n        return Math.abs(oldSegment.presentationTime - firstNewSegment.presentationTime) < TIME_FUDGE;\n      }); // No matching segment from the old playlist means the entire playlist was refreshed.\n      // In this case the media sequence should account for this update, and the new segments\n      // should be marked as discontinuous from the prior content, since the last prior\n      // timeline was removed.\n\n      if (oldMatchingSegmentIndex === -1) {\n        updateMediaSequenceForPlaylist({\n          playlist: playlist,\n          mediaSequence: oldPlaylist.mediaSequence + oldPlaylist.segments.length\n        });\n        playlist.segments[0].discontinuity = true;\n        playlist.discontinuityStarts.unshift(0); // No matching segment does not necessarily mean there's missing content.\n        //\n        // If the new playlist's timeline is the same as the last seen segment's timeline,\n        // then a discontinuity can be added to identify that there's potentially missing\n        // content. If there's no missing content, the discontinuity should still be rather\n        // harmless. It's possible that if segment durations are accurate enough, that the\n        // existence of a gap can be determined using the presentation times and durations,\n        // but if the segment timing info is off, it may introduce more problems than simply\n        // adding the discontinuity.\n        //\n        // If the new playlist's timeline is different from the last seen segment's timeline,\n        // then a discontinuity can be added to identify that this is the first seen segment\n        // of a new timeline. However, the logic at the start of this function that\n        // determined the disconinuity sequence by timeline index is now off by one (the\n        // discontinuity of the newest timeline hasn't yet fallen off the manifest...since\n        // we added it), so the disconinuity sequence must be decremented.\n        //\n        // A period may also have a duration of zero, so the case of no segments is handled\n        // here even though we don't yet support early available periods.\n\n        if (!oldPlaylist.segments.length && playlist.timeline > oldPlaylist.timeline || oldPlaylist.segments.length && playlist.timeline > oldPlaylist.segments[oldPlaylist.segments.length - 1].timeline) {\n          playlist.discontinuitySequence--;\n        }\n\n        return;\n      } // If the first segment matched with a prior segment on a discontinuity (it's matching\n      // on the first segment of a period), then the discontinuitySequence shouldn't be the\n      // timeline's matching one, but instead should be the one prior, and the first segment\n      // of the new manifest should be marked with a discontinuity.\n      //\n      // The reason for this special case is that discontinuity sequence shows how many\n      // discontinuities have fallen off of the playlist, and discontinuities are marked on\n      // the first segment of a new \"timeline.\" Because of this, while DASH will retain that\n      // Period while the \"timeline\" exists, HLS keeps track of it via the discontinuity\n      // sequence, and that first segment is an indicator, but can be removed before that\n      // timeline is gone.\n\n\n      var oldMatchingSegment = oldPlaylist.segments[oldMatchingSegmentIndex];\n\n      if (oldMatchingSegment.discontinuity && !firstNewSegment.discontinuity) {\n        firstNewSegment.discontinuity = true;\n        playlist.discontinuityStarts.unshift(0);\n        playlist.discontinuitySequence--;\n      }\n\n      updateMediaSequenceForPlaylist({\n        playlist: playlist,\n        mediaSequence: oldPlaylist.segments[oldMatchingSegmentIndex].number\n      });\n    });\n  };\n  /**\n   * Given an old parsed manifest object and a new parsed manifest object, updates the\n   * sequence and timing values within the new manifest to ensure that it lines up with the\n   * old.\n   *\n   * @param {Array} oldManifest - the old main manifest object\n   * @param {Array} newManifest - the new main manifest object\n   *\n   * @return {Object} the updated new manifest object\n   */\n\n\n  var positionManifestOnTimeline = function positionManifestOnTimeline(_ref5) {\n    var oldManifest = _ref5.oldManifest,\n        newManifest = _ref5.newManifest; // Starting from v4.1.2 of the IOP, section 4.4.3.3 states:\n    //\n    // \"MPD@availabilityStartTime and Period@start shall not be changed over MPD updates.\"\n    //\n    // This was added from https://github.com/Dash-Industry-Forum/DASH-IF-IOP/issues/160\n    //\n    // Because of this change, and the difficulty of supporting periods with changing start\n    // times, periods with changing start times are not supported. This makes the logic much\n    // simpler, since periods with the same start time can be considerred the same period\n    // across refreshes.\n    //\n    // To give an example as to the difficulty of handling periods where the start time may\n    // change, if a single period manifest is refreshed with another manifest with a single\n    // period, and both the start and end times are increased, then the only way to determine\n    // if it's a new period or an old one that has changed is to look through the segments of\n    // each playlist and determine the presentation time bounds to find a match. In addition,\n    // if the period start changed to exceed the old period end, then there would be no\n    // match, and it would not be possible to determine whether the refreshed period is a new\n    // one or the old one.\n\n    var oldPlaylists = oldManifest.playlists.concat(getMediaGroupPlaylists(oldManifest));\n    var newPlaylists = newManifest.playlists.concat(getMediaGroupPlaylists(newManifest)); // Save all seen timelineStarts to the new manifest. Although this potentially means that\n    // there's a \"memory leak\" in that it will never stop growing, in reality, only a couple\n    // of properties are saved for each seen Period. Even long running live streams won't\n    // generate too many Periods, unless the stream is watched for decades. In the future,\n    // this can be optimized by mapping to discontinuity sequence numbers for each timeline,\n    // but it may not become an issue, and the additional info can be useful for debugging.\n\n    newManifest.timelineStarts = getUniqueTimelineStarts([oldManifest.timelineStarts, newManifest.timelineStarts]);\n    updateSequenceNumbers({\n      oldPlaylists: oldPlaylists,\n      newPlaylists: newPlaylists,\n      timelineStarts: newManifest.timelineStarts\n    });\n    return newManifest;\n  };\n\n  var generateSidxKey = function generateSidxKey(sidx) {\n    return sidx && sidx.uri + '-' + byteRangeToString(sidx.byterange);\n  };\n\n  var mergeDiscontiguousPlaylists = function mergeDiscontiguousPlaylists(playlists) {\n    var mergedPlaylists = values(playlists.reduce(function (acc, playlist) {\n      // assuming playlist IDs are the same across periods\n      // TODO: handle multiperiod where representation sets are not the same\n      // across periods\n      var name = playlist.attributes.id + (playlist.attributes.lang || '');\n\n      if (!acc[name]) {\n        // First Period\n        acc[name] = playlist;\n        acc[name].attributes.timelineStarts = [];\n      } else {\n        // Subsequent Periods\n        if (playlist.segments) {\n          var _acc$name$segments; // first segment of subsequent periods signal a discontinuity\n\n\n          if (playlist.segments[0]) {\n            playlist.segments[0].discontinuity = true;\n          }\n\n          (_acc$name$segments = acc[name].segments).push.apply(_acc$name$segments, playlist.segments);\n        } // bubble up contentProtection, this assumes all DRM content\n        // has the same contentProtection\n\n\n        if (playlist.attributes.contentProtection) {\n          acc[name].attributes.contentProtection = playlist.attributes.contentProtection;\n        }\n      }\n\n      acc[name].attributes.timelineStarts.push({\n        // Although they represent the same number, it's important to have both to make it\n        // compatible with HLS potentially having a similar attribute.\n        start: playlist.attributes.periodStart,\n        timeline: playlist.attributes.periodStart\n      });\n      return acc;\n    }, {}));\n    return mergedPlaylists.map(function (playlist) {\n      playlist.discontinuityStarts = findIndexes(playlist.segments || [], 'discontinuity');\n      return playlist;\n    });\n  };\n\n  var addSidxSegmentsToPlaylist = function addSidxSegmentsToPlaylist(playlist, sidxMapping) {\n    var sidxKey = generateSidxKey(playlist.sidx);\n    var sidxMatch = sidxKey && sidxMapping[sidxKey] && sidxMapping[sidxKey].sidx;\n\n    if (sidxMatch) {\n      addSidxSegmentsToPlaylist$1(playlist, sidxMatch, playlist.sidx.resolvedUri);\n    }\n\n    return playlist;\n  };\n\n  var addSidxSegmentsToPlaylists = function addSidxSegmentsToPlaylists(playlists, sidxMapping) {\n    if (sidxMapping === void 0) {\n      sidxMapping = {};\n    }\n\n    if (!Object.keys(sidxMapping).length) {\n      return playlists;\n    }\n\n    for (var i in playlists) {\n      playlists[i] = addSidxSegmentsToPlaylist(playlists[i], sidxMapping);\n    }\n\n    return playlists;\n  };\n\n  var formatAudioPlaylist = function formatAudioPlaylist(_ref, isAudioOnly) {\n    var _attributes;\n\n    var attributes = _ref.attributes,\n        segments = _ref.segments,\n        sidx = _ref.sidx,\n        mediaSequence = _ref.mediaSequence,\n        discontinuitySequence = _ref.discontinuitySequence,\n        discontinuityStarts = _ref.discontinuityStarts;\n    var playlist = {\n      attributes: (_attributes = {\n        NAME: attributes.id,\n        BANDWIDTH: attributes.bandwidth,\n        CODECS: attributes.codecs\n      }, _attributes['PROGRAM-ID'] = 1, _attributes),\n      uri: '',\n      endList: attributes.type === 'static',\n      timeline: attributes.periodStart,\n      resolvedUri: '',\n      targetDuration: attributes.duration,\n      discontinuitySequence: discontinuitySequence,\n      discontinuityStarts: discontinuityStarts,\n      timelineStarts: attributes.timelineStarts,\n      mediaSequence: mediaSequence,\n      segments: segments\n    };\n\n    if (attributes.contentProtection) {\n      playlist.contentProtection = attributes.contentProtection;\n    }\n\n    if (sidx) {\n      playlist.sidx = sidx;\n    }\n\n    if (isAudioOnly) {\n      playlist.attributes.AUDIO = 'audio';\n      playlist.attributes.SUBTITLES = 'subs';\n    }\n\n    return playlist;\n  };\n\n  var formatVttPlaylist = function formatVttPlaylist(_ref2) {\n    var _m3u8Attributes;\n\n    var attributes = _ref2.attributes,\n        segments = _ref2.segments,\n        mediaSequence = _ref2.mediaSequence,\n        discontinuityStarts = _ref2.discontinuityStarts,\n        discontinuitySequence = _ref2.discontinuitySequence;\n\n    if (typeof segments === 'undefined') {\n      // vtt tracks may use single file in BaseURL\n      segments = [{\n        uri: attributes.baseUrl,\n        timeline: attributes.periodStart,\n        resolvedUri: attributes.baseUrl || '',\n        duration: attributes.sourceDuration,\n        number: 0\n      }]; // targetDuration should be the same duration as the only segment\n\n      attributes.duration = attributes.sourceDuration;\n    }\n\n    var m3u8Attributes = (_m3u8Attributes = {\n      NAME: attributes.id,\n      BANDWIDTH: attributes.bandwidth\n    }, _m3u8Attributes['PROGRAM-ID'] = 1, _m3u8Attributes);\n\n    if (attributes.codecs) {\n      m3u8Attributes.CODECS = attributes.codecs;\n    }\n\n    return {\n      attributes: m3u8Attributes,\n      uri: '',\n      endList: attributes.type === 'static',\n      timeline: attributes.periodStart,\n      resolvedUri: attributes.baseUrl || '',\n      targetDuration: attributes.duration,\n      timelineStarts: attributes.timelineStarts,\n      discontinuityStarts: discontinuityStarts,\n      discontinuitySequence: discontinuitySequence,\n      mediaSequence: mediaSequence,\n      segments: segments\n    };\n  };\n\n  var organizeAudioPlaylists = function organizeAudioPlaylists(playlists, sidxMapping, isAudioOnly) {\n    if (sidxMapping === void 0) {\n      sidxMapping = {};\n    }\n\n    if (isAudioOnly === void 0) {\n      isAudioOnly = false;\n    }\n\n    var mainPlaylist;\n    var formattedPlaylists = playlists.reduce(function (a, playlist) {\n      var role = playlist.attributes.role && playlist.attributes.role.value || '';\n      var language = playlist.attributes.lang || '';\n      var label = playlist.attributes.label || 'main';\n\n      if (language && !playlist.attributes.label) {\n        var roleLabel = role ? \" (\" + role + \")\" : '';\n        label = \"\" + playlist.attributes.lang + roleLabel;\n      }\n\n      if (!a[label]) {\n        a[label] = {\n          language: language,\n          autoselect: true,\n          \"default\": role === 'main',\n          playlists: [],\n          uri: ''\n        };\n      }\n\n      var formatted = addSidxSegmentsToPlaylist(formatAudioPlaylist(playlist, isAudioOnly), sidxMapping);\n      a[label].playlists.push(formatted);\n\n      if (typeof mainPlaylist === 'undefined' && role === 'main') {\n        mainPlaylist = playlist;\n        mainPlaylist[\"default\"] = true;\n      }\n\n      return a;\n    }, {}); // if no playlists have role \"main\", mark the first as main\n\n    if (!mainPlaylist) {\n      var firstLabel = Object.keys(formattedPlaylists)[0];\n      formattedPlaylists[firstLabel][\"default\"] = true;\n    }\n\n    return formattedPlaylists;\n  };\n\n  var organizeVttPlaylists = function organizeVttPlaylists(playlists, sidxMapping) {\n    if (sidxMapping === void 0) {\n      sidxMapping = {};\n    }\n\n    return playlists.reduce(function (a, playlist) {\n      var label = playlist.attributes.lang || 'text';\n\n      if (!a[label]) {\n        a[label] = {\n          language: label,\n          \"default\": false,\n          autoselect: false,\n          playlists: [],\n          uri: ''\n        };\n      }\n\n      a[label].playlists.push(addSidxSegmentsToPlaylist(formatVttPlaylist(playlist), sidxMapping));\n      return a;\n    }, {});\n  };\n\n  var organizeCaptionServices = function organizeCaptionServices(captionServices) {\n    return captionServices.reduce(function (svcObj, svc) {\n      if (!svc) {\n        return svcObj;\n      }\n\n      svc.forEach(function (service) {\n        var channel = service.channel,\n            language = service.language;\n        svcObj[language] = {\n          autoselect: false,\n          \"default\": false,\n          instreamId: channel,\n          language: language\n        };\n\n        if (service.hasOwnProperty('aspectRatio')) {\n          svcObj[language].aspectRatio = service.aspectRatio;\n        }\n\n        if (service.hasOwnProperty('easyReader')) {\n          svcObj[language].easyReader = service.easyReader;\n        }\n\n        if (service.hasOwnProperty('3D')) {\n          svcObj[language]['3D'] = service['3D'];\n        }\n      });\n      return svcObj;\n    }, {});\n  };\n\n  var formatVideoPlaylist = function formatVideoPlaylist(_ref3) {\n    var _attributes2;\n\n    var attributes = _ref3.attributes,\n        segments = _ref3.segments,\n        sidx = _ref3.sidx,\n        discontinuityStarts = _ref3.discontinuityStarts;\n    var playlist = {\n      attributes: (_attributes2 = {\n        NAME: attributes.id,\n        AUDIO: 'audio',\n        SUBTITLES: 'subs',\n        RESOLUTION: {\n          width: attributes.width,\n          height: attributes.height\n        },\n        CODECS: attributes.codecs,\n        BANDWIDTH: attributes.bandwidth\n      }, _attributes2['PROGRAM-ID'] = 1, _attributes2),\n      uri: '',\n      endList: attributes.type === 'static',\n      timeline: attributes.periodStart,\n      resolvedUri: '',\n      targetDuration: attributes.duration,\n      discontinuityStarts: discontinuityStarts,\n      timelineStarts: attributes.timelineStarts,\n      segments: segments\n    };\n\n    if (attributes.contentProtection) {\n      playlist.contentProtection = attributes.contentProtection;\n    }\n\n    if (sidx) {\n      playlist.sidx = sidx;\n    }\n\n    return playlist;\n  };\n\n  var videoOnly = function videoOnly(_ref4) {\n    var attributes = _ref4.attributes;\n    return attributes.mimeType === 'video/mp4' || attributes.mimeType === 'video/webm' || attributes.contentType === 'video';\n  };\n\n  var audioOnly = function audioOnly(_ref5) {\n    var attributes = _ref5.attributes;\n    return attributes.mimeType === 'audio/mp4' || attributes.mimeType === 'audio/webm' || attributes.contentType === 'audio';\n  };\n\n  var vttOnly = function vttOnly(_ref6) {\n    var attributes = _ref6.attributes;\n    return attributes.mimeType === 'text/vtt' || attributes.contentType === 'text';\n  };\n  /**\n   * Contains start and timeline properties denoting a timeline start. For DASH, these will\n   * be the same number.\n   *\n   * @typedef {Object} TimelineStart\n   * @property {number} start - the start time of the timeline\n   * @property {number} timeline - the timeline number\n   */\n\n  /**\n   * Adds appropriate media and discontinuity sequence values to the segments and playlists.\n   *\n   * Throughout mpd-parser, the `number` attribute is used in relation to `startNumber`, a\n   * DASH specific attribute used in constructing segment URI's from templates. However, from\n   * an HLS perspective, the `number` attribute on a segment would be its `mediaSequence`\n   * value, which should start at the original media sequence value (or 0) and increment by 1\n   * for each segment thereafter. Since DASH's `startNumber` values are independent per\n   * period, it doesn't make sense to use it for `number`. Instead, assume everything starts\n   * from a 0 mediaSequence value and increment from there.\n   *\n   * Note that VHS currently doesn't use the `number` property, but it can be helpful for\n   * debugging and making sense of the manifest.\n   *\n   * For live playlists, to account for values increasing in manifests when periods are\n   * removed on refreshes, merging logic should be used to update the numbers to their\n   * appropriate values (to ensure they're sequential and increasing).\n   *\n   * @param {Object[]} playlists - the playlists to update\n   * @param {TimelineStart[]} timelineStarts - the timeline starts for the manifest\n   */\n\n\n  var addMediaSequenceValues = function addMediaSequenceValues(playlists, timelineStarts) {\n    // increment all segments sequentially\n    playlists.forEach(function (playlist) {\n      playlist.mediaSequence = 0;\n      playlist.discontinuitySequence = findIndex(timelineStarts, function (_ref7) {\n        var timeline = _ref7.timeline;\n        return timeline === playlist.timeline;\n      });\n\n      if (!playlist.segments) {\n        return;\n      }\n\n      playlist.segments.forEach(function (segment, index) {\n        segment.number = index;\n      });\n    });\n  };\n  /**\n   * Given a media group object, flattens all playlists within the media group into a single\n   * array.\n   *\n   * @param {Object} mediaGroupObject - the media group object\n   *\n   * @return {Object[]}\n   *         The media group playlists\n   */\n\n\n  var flattenMediaGroupPlaylists = function flattenMediaGroupPlaylists(mediaGroupObject) {\n    if (!mediaGroupObject) {\n      return [];\n    }\n\n    return Object.keys(mediaGroupObject).reduce(function (acc, label) {\n      var labelContents = mediaGroupObject[label];\n      return acc.concat(labelContents.playlists);\n    }, []);\n  };\n\n  var toM3u8 = function toM3u8(_ref8) {\n    var _mediaGroups;\n\n    var dashPlaylists = _ref8.dashPlaylists,\n        locations = _ref8.locations,\n        _ref8$sidxMapping = _ref8.sidxMapping,\n        sidxMapping = _ref8$sidxMapping === void 0 ? {} : _ref8$sidxMapping,\n        previousManifest = _ref8.previousManifest;\n\n    if (!dashPlaylists.length) {\n      return {};\n    } // grab all main manifest attributes\n\n\n    var _dashPlaylists$0$attr = dashPlaylists[0].attributes,\n        duration = _dashPlaylists$0$attr.sourceDuration,\n        type = _dashPlaylists$0$attr.type,\n        suggestedPresentationDelay = _dashPlaylists$0$attr.suggestedPresentationDelay,\n        minimumUpdatePeriod = _dashPlaylists$0$attr.minimumUpdatePeriod;\n    var videoPlaylists = mergeDiscontiguousPlaylists(dashPlaylists.filter(videoOnly)).map(formatVideoPlaylist);\n    var audioPlaylists = mergeDiscontiguousPlaylists(dashPlaylists.filter(audioOnly));\n    var vttPlaylists = mergeDiscontiguousPlaylists(dashPlaylists.filter(vttOnly));\n    var captions = dashPlaylists.map(function (playlist) {\n      return playlist.attributes.captionServices;\n    }).filter(Boolean);\n    var manifest = {\n      allowCache: true,\n      discontinuityStarts: [],\n      segments: [],\n      endList: true,\n      mediaGroups: (_mediaGroups = {\n        AUDIO: {},\n        VIDEO: {}\n      }, _mediaGroups['CLOSED-CAPTIONS'] = {}, _mediaGroups.SUBTITLES = {}, _mediaGroups),\n      uri: '',\n      duration: duration,\n      playlists: addSidxSegmentsToPlaylists(videoPlaylists, sidxMapping)\n    };\n\n    if (minimumUpdatePeriod >= 0) {\n      manifest.minimumUpdatePeriod = minimumUpdatePeriod * 1000;\n    }\n\n    if (locations) {\n      manifest.locations = locations;\n    }\n\n    if (type === 'dynamic') {\n      manifest.suggestedPresentationDelay = suggestedPresentationDelay;\n    }\n\n    var isAudioOnly = manifest.playlists.length === 0;\n    var organizedAudioGroup = audioPlaylists.length ? organizeAudioPlaylists(audioPlaylists, sidxMapping, isAudioOnly) : null;\n    var organizedVttGroup = vttPlaylists.length ? organizeVttPlaylists(vttPlaylists, sidxMapping) : null;\n    var formattedPlaylists = videoPlaylists.concat(flattenMediaGroupPlaylists(organizedAudioGroup), flattenMediaGroupPlaylists(organizedVttGroup));\n    var playlistTimelineStarts = formattedPlaylists.map(function (_ref9) {\n      var timelineStarts = _ref9.timelineStarts;\n      return timelineStarts;\n    });\n    manifest.timelineStarts = getUniqueTimelineStarts(playlistTimelineStarts);\n    addMediaSequenceValues(formattedPlaylists, manifest.timelineStarts);\n\n    if (organizedAudioGroup) {\n      manifest.mediaGroups.AUDIO.audio = organizedAudioGroup;\n    }\n\n    if (organizedVttGroup) {\n      manifest.mediaGroups.SUBTITLES.subs = organizedVttGroup;\n    }\n\n    if (captions.length) {\n      manifest.mediaGroups['CLOSED-CAPTIONS'].cc = organizeCaptionServices(captions);\n    }\n\n    if (previousManifest) {\n      return positionManifestOnTimeline({\n        oldManifest: previousManifest,\n        newManifest: manifest\n      });\n    }\n\n    return manifest;\n  };\n  /**\n   * Calculates the R (repetition) value for a live stream (for the final segment\n   * in a manifest where the r value is negative 1)\n   *\n   * @param {Object} attributes\n   *        Object containing all inherited attributes from parent elements with attribute\n   *        names as keys\n   * @param {number} time\n   *        current time (typically the total time up until the final segment)\n   * @param {number} duration\n   *        duration property for the given <S />\n   *\n   * @return {number}\n   *        R value to reach the end of the given period\n   */\n\n\n  var getLiveRValue = function getLiveRValue(attributes, time, duration) {\n    var NOW = attributes.NOW,\n        clientOffset = attributes.clientOffset,\n        availabilityStartTime = attributes.availabilityStartTime,\n        _attributes$timescale = attributes.timescale,\n        timescale = _attributes$timescale === void 0 ? 1 : _attributes$timescale,\n        _attributes$periodSta = attributes.periodStart,\n        periodStart = _attributes$periodSta === void 0 ? 0 : _attributes$periodSta,\n        _attributes$minimumUp = attributes.minimumUpdatePeriod,\n        minimumUpdatePeriod = _attributes$minimumUp === void 0 ? 0 : _attributes$minimumUp;\n    var now = (NOW + clientOffset) / 1000;\n    var periodStartWC = availabilityStartTime + periodStart;\n    var periodEndWC = now + minimumUpdatePeriod;\n    var periodDuration = periodEndWC - periodStartWC;\n    return Math.ceil((periodDuration * timescale - time) / duration);\n  };\n  /**\n   * Uses information provided by SegmentTemplate.SegmentTimeline to determine segment\n   * timing and duration\n   *\n   * @param {Object} attributes\n   *        Object containing all inherited attributes from parent elements with attribute\n   *        names as keys\n   * @param {Object[]} segmentTimeline\n   *        List of objects representing the attributes of each S element contained within\n   *\n   * @return {{number: number, duration: number, time: number, timeline: number}[]}\n   *         List of Objects with segment timing and duration info\n   */\n\n\n  var parseByTimeline = function parseByTimeline(attributes, segmentTimeline) {\n    var type = attributes.type,\n        _attributes$minimumUp2 = attributes.minimumUpdatePeriod,\n        minimumUpdatePeriod = _attributes$minimumUp2 === void 0 ? 0 : _attributes$minimumUp2,\n        _attributes$media = attributes.media,\n        media = _attributes$media === void 0 ? '' : _attributes$media,\n        sourceDuration = attributes.sourceDuration,\n        _attributes$timescale2 = attributes.timescale,\n        timescale = _attributes$timescale2 === void 0 ? 1 : _attributes$timescale2,\n        _attributes$startNumb = attributes.startNumber,\n        startNumber = _attributes$startNumb === void 0 ? 1 : _attributes$startNumb,\n        timeline = attributes.periodStart;\n    var segments = [];\n    var time = -1;\n\n    for (var sIndex = 0; sIndex < segmentTimeline.length; sIndex++) {\n      var S = segmentTimeline[sIndex];\n      var duration = S.d;\n      var repeat = S.r || 0;\n      var segmentTime = S.t || 0;\n\n      if (time < 0) {\n        // first segment\n        time = segmentTime;\n      }\n\n      if (segmentTime && segmentTime > time) {\n        // discontinuity\n        // TODO: How to handle this type of discontinuity\n        // timeline++ here would treat it like HLS discontuity and content would\n        // get appended without gap\n        // E.G.\n        //  <S t=\"0\" d=\"1\" />\n        //  <S d=\"1\" />\n        //  <S d=\"1\" />\n        //  <S t=\"5\" d=\"1\" />\n        // would have $Time$ values of [0, 1, 2, 5]\n        // should this be appened at time positions [0, 1, 2, 3],(#EXT-X-DISCONTINUITY)\n        // or [0, 1, 2, gap, gap, 5]? (#EXT-X-GAP)\n        // does the value of sourceDuration consider this when calculating arbitrary\n        // negative @r repeat value?\n        // E.G. Same elements as above with this added at the end\n        //  <S d=\"1\" r=\"-1\" />\n        //  with a sourceDuration of 10\n        // Would the 2 gaps be included in the time duration calculations resulting in\n        // 8 segments with $Time$ values of [0, 1, 2, 5, 6, 7, 8, 9] or 10 segments\n        // with $Time$ values of [0, 1, 2, 5, 6, 7, 8, 9, 10, 11] ?\n        time = segmentTime;\n      }\n\n      var count = void 0;\n\n      if (repeat < 0) {\n        var nextS = sIndex + 1;\n\n        if (nextS === segmentTimeline.length) {\n          // last segment\n          if (type === 'dynamic' && minimumUpdatePeriod > 0 && media.indexOf('$Number$') > 0) {\n            count = getLiveRValue(attributes, time, duration);\n          } else {\n            // TODO: This may be incorrect depending on conclusion of TODO above\n            count = (sourceDuration * timescale - time) / duration;\n          }\n        } else {\n          count = (segmentTimeline[nextS].t - time) / duration;\n        }\n      } else {\n        count = repeat + 1;\n      }\n\n      var end = startNumber + segments.length + count;\n      var number = startNumber + segments.length;\n\n      while (number < end) {\n        segments.push({\n          number: number,\n          duration: duration / timescale,\n          time: time,\n          timeline: timeline\n        });\n        time += duration;\n        number++;\n      }\n    }\n\n    return segments;\n  };\n\n  var identifierPattern = /\\$([A-z]*)(?:(%0)([0-9]+)d)?\\$/g;\n  /**\n   * Replaces template identifiers with corresponding values. To be used as the callback\n   * for String.prototype.replace\n   *\n   * @name replaceCallback\n   * @function\n   * @param {string} match\n   *        Entire match of identifier\n   * @param {string} identifier\n   *        Name of matched identifier\n   * @param {string} format\n   *        Format tag string. Its presence indicates that padding is expected\n   * @param {string} width\n   *        Desired length of the replaced value. Values less than this width shall be left\n   *        zero padded\n   * @return {string}\n   *         Replacement for the matched identifier\n   */\n\n  /**\n   * Returns a function to be used as a callback for String.prototype.replace to replace\n   * template identifiers\n   *\n   * @param {Obect} values\n   *        Object containing values that shall be used to replace known identifiers\n   * @param {number} values.RepresentationID\n   *        Value of the Representation@id attribute\n   * @param {number} values.Number\n   *        Number of the corresponding segment\n   * @param {number} values.Bandwidth\n   *        Value of the Representation@bandwidth attribute.\n   * @param {number} values.Time\n   *        Timestamp value of the corresponding segment\n   * @return {replaceCallback}\n   *         Callback to be used with String.prototype.replace to replace identifiers\n   */\n\n  var identifierReplacement = function identifierReplacement(values) {\n    return function (match, identifier, format, width) {\n      if (match === '$$') {\n        // escape sequence\n        return '$';\n      }\n\n      if (typeof values[identifier] === 'undefined') {\n        return match;\n      }\n\n      var value = '' + values[identifier];\n\n      if (identifier === 'RepresentationID') {\n        // Format tag shall not be present with RepresentationID\n        return value;\n      }\n\n      if (!format) {\n        width = 1;\n      } else {\n        width = parseInt(width, 10);\n      }\n\n      if (value.length >= width) {\n        return value;\n      }\n\n      return \"\" + new Array(width - value.length + 1).join('0') + value;\n    };\n  };\n  /**\n   * Constructs a segment url from a template string\n   *\n   * @param {string} url\n   *        Template string to construct url from\n   * @param {Obect} values\n   *        Object containing values that shall be used to replace known identifiers\n   * @param {number} values.RepresentationID\n   *        Value of the Representation@id attribute\n   * @param {number} values.Number\n   *        Number of the corresponding segment\n   * @param {number} values.Bandwidth\n   *        Value of the Representation@bandwidth attribute.\n   * @param {number} values.Time\n   *        Timestamp value of the corresponding segment\n   * @return {string}\n   *         Segment url with identifiers replaced\n   */\n\n\n  var constructTemplateUrl = function constructTemplateUrl(url, values) {\n    return url.replace(identifierPattern, identifierReplacement(values));\n  };\n  /**\n   * Generates a list of objects containing timing and duration information about each\n   * segment needed to generate segment uris and the complete segment object\n   *\n   * @param {Object} attributes\n   *        Object containing all inherited attributes from parent elements with attribute\n   *        names as keys\n   * @param {Object[]|undefined} segmentTimeline\n   *        List of objects representing the attributes of each S element contained within\n   *        the SegmentTimeline element\n   * @return {{number: number, duration: number, time: number, timeline: number}[]}\n   *         List of Objects with segment timing and duration info\n   */\n\n\n  var parseTemplateInfo = function parseTemplateInfo(attributes, segmentTimeline) {\n    if (!attributes.duration && !segmentTimeline) {\n      // if neither @duration or SegmentTimeline are present, then there shall be exactly\n      // one media segment\n      return [{\n        number: attributes.startNumber || 1,\n        duration: attributes.sourceDuration,\n        time: 0,\n        timeline: attributes.periodStart\n      }];\n    }\n\n    if (attributes.duration) {\n      return parseByDuration(attributes);\n    }\n\n    return parseByTimeline(attributes, segmentTimeline);\n  };\n  /**\n   * Generates a list of segments using information provided by the SegmentTemplate element\n   *\n   * @param {Object} attributes\n   *        Object containing all inherited attributes from parent elements with attribute\n   *        names as keys\n   * @param {Object[]|undefined} segmentTimeline\n   *        List of objects representing the attributes of each S element contained within\n   *        the SegmentTimeline element\n   * @return {Object[]}\n   *         List of segment objects\n   */\n\n\n  var segmentsFromTemplate = function segmentsFromTemplate(attributes, segmentTimeline) {\n    var templateValues = {\n      RepresentationID: attributes.id,\n      Bandwidth: attributes.bandwidth || 0\n    };\n    var _attributes$initializ = attributes.initialization,\n        initialization = _attributes$initializ === void 0 ? {\n      sourceURL: '',\n      range: ''\n    } : _attributes$initializ;\n    var mapSegment = urlTypeToSegment({\n      baseUrl: attributes.baseUrl,\n      source: constructTemplateUrl(initialization.sourceURL, templateValues),\n      range: initialization.range\n    });\n    var segments = parseTemplateInfo(attributes, segmentTimeline);\n    return segments.map(function (segment) {\n      templateValues.Number = segment.number;\n      templateValues.Time = segment.time;\n      var uri = constructTemplateUrl(attributes.media || '', templateValues); // See DASH spec section 5.3.9.2.2\n      // - if timescale isn't present on any level, default to 1.\n\n      var timescale = attributes.timescale || 1; // - if presentationTimeOffset isn't present on any level, default to 0\n\n      var presentationTimeOffset = attributes.presentationTimeOffset || 0;\n      var presentationTime = // Even if the @t attribute is not specified for the segment, segment.time is\n      // calculated in mpd-parser prior to this, so it's assumed to be available.\n      attributes.periodStart + (segment.time - presentationTimeOffset) / timescale;\n      var map = {\n        uri: uri,\n        timeline: segment.timeline,\n        duration: segment.duration,\n        resolvedUri: resolveUrl$1(attributes.baseUrl || '', uri),\n        map: mapSegment,\n        number: segment.number,\n        presentationTime: presentationTime\n      };\n      return map;\n    });\n  };\n  /**\n   * Converts a <SegmentUrl> (of type URLType from the DASH spec 5.3.9.2 Table 14)\n   * to an object that matches the output of a segment in videojs/mpd-parser\n   *\n   * @param {Object} attributes\n   *   Object containing all inherited attributes from parent elements with attribute\n   *   names as keys\n   * @param {Object} segmentUrl\n   *   <SegmentURL> node to translate into a segment object\n   * @return {Object} translated segment object\n   */\n\n\n  var SegmentURLToSegmentObject = function SegmentURLToSegmentObject(attributes, segmentUrl) {\n    var baseUrl = attributes.baseUrl,\n        _attributes$initializ = attributes.initialization,\n        initialization = _attributes$initializ === void 0 ? {} : _attributes$initializ;\n    var initSegment = urlTypeToSegment({\n      baseUrl: baseUrl,\n      source: initialization.sourceURL,\n      range: initialization.range\n    });\n    var segment = urlTypeToSegment({\n      baseUrl: baseUrl,\n      source: segmentUrl.media,\n      range: segmentUrl.mediaRange\n    });\n    segment.map = initSegment;\n    return segment;\n  };\n  /**\n   * Generates a list of segments using information provided by the SegmentList element\n   * SegmentList (DASH SPEC Section 5.3.9.3.2) contains a set of <SegmentURL> nodes.  Each\n   * node should be translated into segment.\n   *\n   * @param {Object} attributes\n   *   Object containing all inherited attributes from parent elements with attribute\n   *   names as keys\n   * @param {Object[]|undefined} segmentTimeline\n   *        List of objects representing the attributes of each S element contained within\n   *        the SegmentTimeline element\n   * @return {Object.<Array>} list of segments\n   */\n\n\n  var segmentsFromList = function segmentsFromList(attributes, segmentTimeline) {\n    var duration = attributes.duration,\n        _attributes$segmentUr = attributes.segmentUrls,\n        segmentUrls = _attributes$segmentUr === void 0 ? [] : _attributes$segmentUr,\n        periodStart = attributes.periodStart; // Per spec (5.3.9.2.1) no way to determine segment duration OR\n    // if both SegmentTimeline and @duration are defined, it is outside of spec.\n\n    if (!duration && !segmentTimeline || duration && segmentTimeline) {\n      throw new Error(errors.SEGMENT_TIME_UNSPECIFIED);\n    }\n\n    var segmentUrlMap = segmentUrls.map(function (segmentUrlObject) {\n      return SegmentURLToSegmentObject(attributes, segmentUrlObject);\n    });\n    var segmentTimeInfo;\n\n    if (duration) {\n      segmentTimeInfo = parseByDuration(attributes);\n    }\n\n    if (segmentTimeline) {\n      segmentTimeInfo = parseByTimeline(attributes, segmentTimeline);\n    }\n\n    var segments = segmentTimeInfo.map(function (segmentTime, index) {\n      if (segmentUrlMap[index]) {\n        var segment = segmentUrlMap[index]; // See DASH spec section 5.3.9.2.2\n        // - if timescale isn't present on any level, default to 1.\n\n        var timescale = attributes.timescale || 1; // - if presentationTimeOffset isn't present on any level, default to 0\n\n        var presentationTimeOffset = attributes.presentationTimeOffset || 0;\n        segment.timeline = segmentTime.timeline;\n        segment.duration = segmentTime.duration;\n        segment.number = segmentTime.number;\n        segment.presentationTime = periodStart + (segmentTime.time - presentationTimeOffset) / timescale;\n        return segment;\n      } // Since we're mapping we should get rid of any blank segments (in case\n      // the given SegmentTimeline is handling for more elements than we have\n      // SegmentURLs for).\n\n    }).filter(function (segment) {\n      return segment;\n    });\n    return segments;\n  };\n\n  var generateSegments = function generateSegments(_ref) {\n    var attributes = _ref.attributes,\n        segmentInfo = _ref.segmentInfo;\n    var segmentAttributes;\n    var segmentsFn;\n\n    if (segmentInfo.template) {\n      segmentsFn = segmentsFromTemplate;\n      segmentAttributes = merge(attributes, segmentInfo.template);\n    } else if (segmentInfo.base) {\n      segmentsFn = segmentsFromBase;\n      segmentAttributes = merge(attributes, segmentInfo.base);\n    } else if (segmentInfo.list) {\n      segmentsFn = segmentsFromList;\n      segmentAttributes = merge(attributes, segmentInfo.list);\n    }\n\n    var segmentsInfo = {\n      attributes: attributes\n    };\n\n    if (!segmentsFn) {\n      return segmentsInfo;\n    }\n\n    var segments = segmentsFn(segmentAttributes, segmentInfo.segmentTimeline); // The @duration attribute will be used to determin the playlist's targetDuration which\n    // must be in seconds. Since we've generated the segment list, we no longer need\n    // @duration to be in @timescale units, so we can convert it here.\n\n    if (segmentAttributes.duration) {\n      var _segmentAttributes = segmentAttributes,\n          duration = _segmentAttributes.duration,\n          _segmentAttributes$ti = _segmentAttributes.timescale,\n          timescale = _segmentAttributes$ti === void 0 ? 1 : _segmentAttributes$ti;\n      segmentAttributes.duration = duration / timescale;\n    } else if (segments.length) {\n      // if there is no @duration attribute, use the largest segment duration as\n      // as target duration\n      segmentAttributes.duration = segments.reduce(function (max, segment) {\n        return Math.max(max, Math.ceil(segment.duration));\n      }, 0);\n    } else {\n      segmentAttributes.duration = 0;\n    }\n\n    segmentsInfo.attributes = segmentAttributes;\n    segmentsInfo.segments = segments; // This is a sidx box without actual segment information\n\n    if (segmentInfo.base && segmentAttributes.indexRange) {\n      segmentsInfo.sidx = segments[0];\n      segmentsInfo.segments = [];\n    }\n\n    return segmentsInfo;\n  };\n\n  var toPlaylists = function toPlaylists(representations) {\n    return representations.map(generateSegments);\n  };\n\n  var findChildren = function findChildren(element, name) {\n    return from(element.childNodes).filter(function (_ref) {\n      var tagName = _ref.tagName;\n      return tagName === name;\n    });\n  };\n\n  var getContent = function getContent(element) {\n    return element.textContent.trim();\n  };\n\n  var parseDuration = function parseDuration(str) {\n    var SECONDS_IN_YEAR = 365 * 24 * 60 * 60;\n    var SECONDS_IN_MONTH = 30 * 24 * 60 * 60;\n    var SECONDS_IN_DAY = 24 * 60 * 60;\n    var SECONDS_IN_HOUR = 60 * 60;\n    var SECONDS_IN_MIN = 60; // P10Y10M10DT10H10M10.1S\n\n    var durationRegex = /P(?:(\\d*)Y)?(?:(\\d*)M)?(?:(\\d*)D)?(?:T(?:(\\d*)H)?(?:(\\d*)M)?(?:([\\d.]*)S)?)?/;\n    var match = durationRegex.exec(str);\n\n    if (!match) {\n      return 0;\n    }\n\n    var _match$slice = match.slice(1),\n        year = _match$slice[0],\n        month = _match$slice[1],\n        day = _match$slice[2],\n        hour = _match$slice[3],\n        minute = _match$slice[4],\n        second = _match$slice[5];\n\n    return parseFloat(year || 0) * SECONDS_IN_YEAR + parseFloat(month || 0) * SECONDS_IN_MONTH + parseFloat(day || 0) * SECONDS_IN_DAY + parseFloat(hour || 0) * SECONDS_IN_HOUR + parseFloat(minute || 0) * SECONDS_IN_MIN + parseFloat(second || 0);\n  };\n\n  var parseDate = function parseDate(str) {\n    // Date format without timezone according to ISO 8601\n    // YYY-MM-DDThh:mm:ss.ssssss\n    var dateRegex = /^\\d+-\\d+-\\d+T\\d+:\\d+:\\d+(\\.\\d+)?$/; // If the date string does not specifiy a timezone, we must specifiy UTC. This is\n    // expressed by ending with 'Z'\n\n    if (dateRegex.test(str)) {\n      str += 'Z';\n    }\n\n    return Date.parse(str);\n  };\n\n  var parsers = {\n    /**\n     * Specifies the duration of the entire Media Presentation. Format is a duration string\n     * as specified in ISO 8601\n     *\n     * @param {string} value\n     *        value of attribute as a string\n     * @return {number}\n     *         The duration in seconds\n     */\n    mediaPresentationDuration: function mediaPresentationDuration(value) {\n      return parseDuration(value);\n    },\n\n    /**\n     * Specifies the Segment availability start time for all Segments referred to in this\n     * MPD. For a dynamic manifest, it specifies the anchor for the earliest availability\n     * time. Format is a date string as specified in ISO 8601\n     *\n     * @param {string} value\n     *        value of attribute as a string\n     * @return {number}\n     *         The date as seconds from unix epoch\n     */\n    availabilityStartTime: function availabilityStartTime(value) {\n      return parseDate(value) / 1000;\n    },\n\n    /**\n     * Specifies the smallest period between potential changes to the MPD. Format is a\n     * duration string as specified in ISO 8601\n     *\n     * @param {string} value\n     *        value of attribute as a string\n     * @return {number}\n     *         The duration in seconds\n     */\n    minimumUpdatePeriod: function minimumUpdatePeriod(value) {\n      return parseDuration(value);\n    },\n\n    /**\n     * Specifies the suggested presentation delay. Format is a\n     * duration string as specified in ISO 8601\n     *\n     * @param {string} value\n     *        value of attribute as a string\n     * @return {number}\n     *         The duration in seconds\n     */\n    suggestedPresentationDelay: function suggestedPresentationDelay(value) {\n      return parseDuration(value);\n    },\n\n    /**\n     * specifices the type of mpd. Can be either \"static\" or \"dynamic\"\n     *\n     * @param {string} value\n     *        value of attribute as a string\n     *\n     * @return {string}\n     *         The type as a string\n     */\n    type: function type(value) {\n      return value;\n    },\n\n    /**\n     * Specifies the duration of the smallest time shifting buffer for any Representation\n     * in the MPD. Format is a duration string as specified in ISO 8601\n     *\n     * @param {string} value\n     *        value of attribute as a string\n     * @return {number}\n     *         The duration in seconds\n     */\n    timeShiftBufferDepth: function timeShiftBufferDepth(value) {\n      return parseDuration(value);\n    },\n\n    /**\n     * Specifies the PeriodStart time of the Period relative to the availabilityStarttime.\n     * Format is a duration string as specified in ISO 8601\n     *\n     * @param {string} value\n     *        value of attribute as a string\n     * @return {number}\n     *         The duration in seconds\n     */\n    start: function start(value) {\n      return parseDuration(value);\n    },\n\n    /**\n     * Specifies the width of the visual presentation\n     *\n     * @param {string} value\n     *        value of attribute as a string\n     * @return {number}\n     *         The parsed width\n     */\n    width: function width(value) {\n      return parseInt(value, 10);\n    },\n\n    /**\n     * Specifies the height of the visual presentation\n     *\n     * @param {string} value\n     *        value of attribute as a string\n     * @return {number}\n     *         The parsed height\n     */\n    height: function height(value) {\n      return parseInt(value, 10);\n    },\n\n    /**\n     * Specifies the bitrate of the representation\n     *\n     * @param {string} value\n     *        value of attribute as a string\n     * @return {number}\n     *         The parsed bandwidth\n     */\n    bandwidth: function bandwidth(value) {\n      return parseInt(value, 10);\n    },\n\n    /**\n     * Specifies the number of the first Media Segment in this Representation in the Period\n     *\n     * @param {string} value\n     *        value of attribute as a string\n     * @return {number}\n     *         The parsed number\n     */\n    startNumber: function startNumber(value) {\n      return parseInt(value, 10);\n    },\n\n    /**\n     * Specifies the timescale in units per seconds\n     *\n     * @param {string} value\n     *        value of attribute as a string\n     * @return {number}\n     *         The parsed timescale\n     */\n    timescale: function timescale(value) {\n      return parseInt(value, 10);\n    },\n\n    /**\n     * Specifies the presentationTimeOffset.\n     *\n     * @param {string} value\n     *        value of the attribute as a string\n     *\n     * @return {number}\n     *         The parsed presentationTimeOffset\n     */\n    presentationTimeOffset: function presentationTimeOffset(value) {\n      return parseInt(value, 10);\n    },\n\n    /**\n     * Specifies the constant approximate Segment duration\n     * NOTE: The <Period> element also contains an @duration attribute. This duration\n     *       specifies the duration of the Period. This attribute is currently not\n     *       supported by the rest of the parser, however we still check for it to prevent\n     *       errors.\n     *\n     * @param {string} value\n     *        value of attribute as a string\n     * @return {number}\n     *         The parsed duration\n     */\n    duration: function duration(value) {\n      var parsedValue = parseInt(value, 10);\n\n      if (isNaN(parsedValue)) {\n        return parseDuration(value);\n      }\n\n      return parsedValue;\n    },\n\n    /**\n     * Specifies the Segment duration, in units of the value of the @timescale.\n     *\n     * @param {string} value\n     *        value of attribute as a string\n     * @return {number}\n     *         The parsed duration\n     */\n    d: function d(value) {\n      return parseInt(value, 10);\n    },\n\n    /**\n     * Specifies the MPD start time, in @timescale units, the first Segment in the series\n     * starts relative to the beginning of the Period\n     *\n     * @param {string} value\n     *        value of attribute as a string\n     * @return {number}\n     *         The parsed time\n     */\n    t: function t(value) {\n      return parseInt(value, 10);\n    },\n\n    /**\n     * Specifies the repeat count of the number of following contiguous Segments with the\n     * same duration expressed by the value of @d\n     *\n     * @param {string} value\n     *        value of attribute as a string\n     * @return {number}\n     *         The parsed number\n     */\n    r: function r(value) {\n      return parseInt(value, 10);\n    },\n\n    /**\n     * Default parser for all other attributes. Acts as a no-op and just returns the value\n     * as a string\n     *\n     * @param {string} value\n     *        value of attribute as a string\n     * @return {string}\n     *         Unparsed value\n     */\n    DEFAULT: function DEFAULT(value) {\n      return value;\n    }\n  };\n  /**\n   * Gets all the attributes and values of the provided node, parses attributes with known\n   * types, and returns an object with attribute names mapped to values.\n   *\n   * @param {Node} el\n   *        The node to parse attributes from\n   * @return {Object}\n   *         Object with all attributes of el parsed\n   */\n\n  var parseAttributes = function parseAttributes(el) {\n    if (!(el && el.attributes)) {\n      return {};\n    }\n\n    return from(el.attributes).reduce(function (a, e) {\n      var parseFn = parsers[e.name] || parsers.DEFAULT;\n      a[e.name] = parseFn(e.value);\n      return a;\n    }, {});\n  };\n\n  var keySystemsMap = {\n    'urn:uuid:1077efec-c0b2-4d02-ace3-3c1e52e2fb4b': 'org.w3.clearkey',\n    'urn:uuid:edef8ba9-79d6-4ace-a3c8-27dcd51d21ed': 'com.widevine.alpha',\n    'urn:uuid:9a04f079-9840-4286-ab92-e65be0885f95': 'com.microsoft.playready',\n    'urn:uuid:f239e769-efa3-4850-9c16-a903c6932efb': 'com.adobe.primetime'\n  };\n  /**\n   * Builds a list of urls that is the product of the reference urls and BaseURL values\n   *\n   * @param {string[]} referenceUrls\n   *        List of reference urls to resolve to\n   * @param {Node[]} baseUrlElements\n   *        List of BaseURL nodes from the mpd\n   * @return {string[]}\n   *         List of resolved urls\n   */\n\n  var buildBaseUrls = function buildBaseUrls(referenceUrls, baseUrlElements) {\n    if (!baseUrlElements.length) {\n      return referenceUrls;\n    }\n\n    return flatten(referenceUrls.map(function (reference) {\n      return baseUrlElements.map(function (baseUrlElement) {\n        return resolveUrl$1(reference, getContent(baseUrlElement));\n      });\n    }));\n  };\n  /**\n   * Contains all Segment information for its containing AdaptationSet\n   *\n   * @typedef {Object} SegmentInformation\n   * @property {Object|undefined} template\n   *           Contains the attributes for the SegmentTemplate node\n   * @property {Object[]|undefined} segmentTimeline\n   *           Contains a list of atrributes for each S node within the SegmentTimeline node\n   * @property {Object|undefined} list\n   *           Contains the attributes for the SegmentList node\n   * @property {Object|undefined} base\n   *           Contains the attributes for the SegmentBase node\n   */\n\n  /**\n   * Returns all available Segment information contained within the AdaptationSet node\n   *\n   * @param {Node} adaptationSet\n   *        The AdaptationSet node to get Segment information from\n   * @return {SegmentInformation}\n   *         The Segment information contained within the provided AdaptationSet\n   */\n\n\n  var getSegmentInformation = function getSegmentInformation(adaptationSet) {\n    var segmentTemplate = findChildren(adaptationSet, 'SegmentTemplate')[0];\n    var segmentList = findChildren(adaptationSet, 'SegmentList')[0];\n    var segmentUrls = segmentList && findChildren(segmentList, 'SegmentURL').map(function (s) {\n      return merge({\n        tag: 'SegmentURL'\n      }, parseAttributes(s));\n    });\n    var segmentBase = findChildren(adaptationSet, 'SegmentBase')[0];\n    var segmentTimelineParentNode = segmentList || segmentTemplate;\n    var segmentTimeline = segmentTimelineParentNode && findChildren(segmentTimelineParentNode, 'SegmentTimeline')[0];\n    var segmentInitializationParentNode = segmentList || segmentBase || segmentTemplate;\n    var segmentInitialization = segmentInitializationParentNode && findChildren(segmentInitializationParentNode, 'Initialization')[0]; // SegmentTemplate is handled slightly differently, since it can have both\n    // @initialization and an <Initialization> node.  @initialization can be templated,\n    // while the node can have a url and range specified.  If the <SegmentTemplate> has\n    // both @initialization and an <Initialization> subelement we opt to override with\n    // the node, as this interaction is not defined in the spec.\n\n    var template = segmentTemplate && parseAttributes(segmentTemplate);\n\n    if (template && segmentInitialization) {\n      template.initialization = segmentInitialization && parseAttributes(segmentInitialization);\n    } else if (template && template.initialization) {\n      // If it is @initialization we convert it to an object since this is the format that\n      // later functions will rely on for the initialization segment.  This is only valid\n      // for <SegmentTemplate>\n      template.initialization = {\n        sourceURL: template.initialization\n      };\n    }\n\n    var segmentInfo = {\n      template: template,\n      segmentTimeline: segmentTimeline && findChildren(segmentTimeline, 'S').map(function (s) {\n        return parseAttributes(s);\n      }),\n      list: segmentList && merge(parseAttributes(segmentList), {\n        segmentUrls: segmentUrls,\n        initialization: parseAttributes(segmentInitialization)\n      }),\n      base: segmentBase && merge(parseAttributes(segmentBase), {\n        initialization: parseAttributes(segmentInitialization)\n      })\n    };\n    Object.keys(segmentInfo).forEach(function (key) {\n      if (!segmentInfo[key]) {\n        delete segmentInfo[key];\n      }\n    });\n    return segmentInfo;\n  };\n  /**\n   * Contains Segment information and attributes needed to construct a Playlist object\n   * from a Representation\n   *\n   * @typedef {Object} RepresentationInformation\n   * @property {SegmentInformation} segmentInfo\n   *           Segment information for this Representation\n   * @property {Object} attributes\n   *           Inherited attributes for this Representation\n   */\n\n  /**\n   * Maps a Representation node to an object containing Segment information and attributes\n   *\n   * @name inheritBaseUrlsCallback\n   * @function\n   * @param {Node} representation\n   *        Representation node from the mpd\n   * @return {RepresentationInformation}\n   *         Representation information needed to construct a Playlist object\n   */\n\n  /**\n   * Returns a callback for Array.prototype.map for mapping Representation nodes to\n   * Segment information and attributes using inherited BaseURL nodes.\n   *\n   * @param {Object} adaptationSetAttributes\n   *        Contains attributes inherited by the AdaptationSet\n   * @param {string[]} adaptationSetBaseUrls\n   *        Contains list of resolved base urls inherited by the AdaptationSet\n   * @param {SegmentInformation} adaptationSetSegmentInfo\n   *        Contains Segment information for the AdaptationSet\n   * @return {inheritBaseUrlsCallback}\n   *         Callback map function\n   */\n\n\n  var inheritBaseUrls = function inheritBaseUrls(adaptationSetAttributes, adaptationSetBaseUrls, adaptationSetSegmentInfo) {\n    return function (representation) {\n      var repBaseUrlElements = findChildren(representation, 'BaseURL');\n      var repBaseUrls = buildBaseUrls(adaptationSetBaseUrls, repBaseUrlElements);\n      var attributes = merge(adaptationSetAttributes, parseAttributes(representation));\n      var representationSegmentInfo = getSegmentInformation(representation);\n      return repBaseUrls.map(function (baseUrl) {\n        return {\n          segmentInfo: merge(adaptationSetSegmentInfo, representationSegmentInfo),\n          attributes: merge(attributes, {\n            baseUrl: baseUrl\n          })\n        };\n      });\n    };\n  };\n  /**\n   * Tranforms a series of content protection nodes to\n   * an object containing pssh data by key system\n   *\n   * @param {Node[]} contentProtectionNodes\n   *        Content protection nodes\n   * @return {Object}\n   *        Object containing pssh data by key system\n   */\n\n\n  var generateKeySystemInformation = function generateKeySystemInformation(contentProtectionNodes) {\n    return contentProtectionNodes.reduce(function (acc, node) {\n      var attributes = parseAttributes(node); // Although it could be argued that according to the UUID RFC spec the UUID string (a-f chars) should be generated\n      // as a lowercase string it also mentions it should be treated as case-insensitive on input. Since the key system\n      // UUIDs in the keySystemsMap are hardcoded as lowercase in the codebase there isn't any reason not to do\n      // .toLowerCase() on the input UUID string from the manifest (at least I could not think of one).\n\n      if (attributes.schemeIdUri) {\n        attributes.schemeIdUri = attributes.schemeIdUri.toLowerCase();\n      }\n\n      var keySystem = keySystemsMap[attributes.schemeIdUri];\n\n      if (keySystem) {\n        acc[keySystem] = {\n          attributes: attributes\n        };\n        var psshNode = findChildren(node, 'cenc:pssh')[0];\n\n        if (psshNode) {\n          var pssh = getContent(psshNode);\n          acc[keySystem].pssh = pssh && decodeB64ToUint8Array(pssh);\n        }\n      }\n\n      return acc;\n    }, {});\n  }; // defined in ANSI_SCTE 214-1 2016\n\n\n  var parseCaptionServiceMetadata = function parseCaptionServiceMetadata(service) {\n    // 608 captions\n    if (service.schemeIdUri === 'urn:scte:dash:cc:cea-608:2015') {\n      var values = typeof service.value !== 'string' ? [] : service.value.split(';');\n      return values.map(function (value) {\n        var channel;\n        var language; // default language to value\n\n        language = value;\n\n        if (/^CC\\d=/.test(value)) {\n          var _value$split = value.split('=');\n\n          channel = _value$split[0];\n          language = _value$split[1];\n        } else if (/^CC\\d$/.test(value)) {\n          channel = value;\n        }\n\n        return {\n          channel: channel,\n          language: language\n        };\n      });\n    } else if (service.schemeIdUri === 'urn:scte:dash:cc:cea-708:2015') {\n      var _values = typeof service.value !== 'string' ? [] : service.value.split(';');\n\n      return _values.map(function (value) {\n        var flags = {\n          // service or channel number 1-63\n          'channel': undefined,\n          // language is a 3ALPHA per ISO 639.2/B\n          // field is required\n          'language': undefined,\n          // BIT 1/0 or ?\n          // default value is 1, meaning 16:9 aspect ratio, 0 is 4:3, ? is unknown\n          'aspectRatio': 1,\n          // BIT 1/0\n          // easy reader flag indicated the text is tailed to the needs of beginning readers\n          // default 0, or off\n          'easyReader': 0,\n          // BIT 1/0\n          // If 3d metadata is present (CEA-708.1) then 1\n          // default 0\n          '3D': 0\n        };\n\n        if (/=/.test(value)) {\n          var _value$split2 = value.split('='),\n              channel = _value$split2[0],\n              _value$split2$ = _value$split2[1],\n              opts = _value$split2$ === void 0 ? '' : _value$split2$;\n\n          flags.channel = channel;\n          flags.language = value;\n          opts.split(',').forEach(function (opt) {\n            var _opt$split = opt.split(':'),\n                name = _opt$split[0],\n                val = _opt$split[1];\n\n            if (name === 'lang') {\n              flags.language = val; // er for easyReadery\n            } else if (name === 'er') {\n              flags.easyReader = Number(val); // war for wide aspect ratio\n            } else if (name === 'war') {\n              flags.aspectRatio = Number(val);\n            } else if (name === '3D') {\n              flags['3D'] = Number(val);\n            }\n          });\n        } else {\n          flags.language = value;\n        }\n\n        if (flags.channel) {\n          flags.channel = 'SERVICE' + flags.channel;\n        }\n\n        return flags;\n      });\n    }\n  };\n  /**\n   * Maps an AdaptationSet node to a list of Representation information objects\n   *\n   * @name toRepresentationsCallback\n   * @function\n   * @param {Node} adaptationSet\n   *        AdaptationSet node from the mpd\n   * @return {RepresentationInformation[]}\n   *         List of objects containing Representaion information\n   */\n\n  /**\n   * Returns a callback for Array.prototype.map for mapping AdaptationSet nodes to a list of\n   * Representation information objects\n   *\n   * @param {Object} periodAttributes\n   *        Contains attributes inherited by the Period\n   * @param {string[]} periodBaseUrls\n   *        Contains list of resolved base urls inherited by the Period\n   * @param {string[]} periodSegmentInfo\n   *        Contains Segment Information at the period level\n   * @return {toRepresentationsCallback}\n   *         Callback map function\n   */\n\n\n  var toRepresentations = function toRepresentations(periodAttributes, periodBaseUrls, periodSegmentInfo) {\n    return function (adaptationSet) {\n      var adaptationSetAttributes = parseAttributes(adaptationSet);\n      var adaptationSetBaseUrls = buildBaseUrls(periodBaseUrls, findChildren(adaptationSet, 'BaseURL'));\n      var role = findChildren(adaptationSet, 'Role')[0];\n      var roleAttributes = {\n        role: parseAttributes(role)\n      };\n      var attrs = merge(periodAttributes, adaptationSetAttributes, roleAttributes);\n      var accessibility = findChildren(adaptationSet, 'Accessibility')[0];\n      var captionServices = parseCaptionServiceMetadata(parseAttributes(accessibility));\n\n      if (captionServices) {\n        attrs = merge(attrs, {\n          captionServices: captionServices\n        });\n      }\n\n      var label = findChildren(adaptationSet, 'Label')[0];\n\n      if (label && label.childNodes.length) {\n        var labelVal = label.childNodes[0].nodeValue.trim();\n        attrs = merge(attrs, {\n          label: labelVal\n        });\n      }\n\n      var contentProtection = generateKeySystemInformation(findChildren(adaptationSet, 'ContentProtection'));\n\n      if (Object.keys(contentProtection).length) {\n        attrs = merge(attrs, {\n          contentProtection: contentProtection\n        });\n      }\n\n      var segmentInfo = getSegmentInformation(adaptationSet);\n      var representations = findChildren(adaptationSet, 'Representation');\n      var adaptationSetSegmentInfo = merge(periodSegmentInfo, segmentInfo);\n      return flatten(representations.map(inheritBaseUrls(attrs, adaptationSetBaseUrls, adaptationSetSegmentInfo)));\n    };\n  };\n  /**\n   * Contains all period information for mapping nodes onto adaptation sets.\n   *\n   * @typedef {Object} PeriodInformation\n   * @property {Node} period.node\n   *           Period node from the mpd\n   * @property {Object} period.attributes\n   *           Parsed period attributes from node plus any added\n   */\n\n  /**\n   * Maps a PeriodInformation object to a list of Representation information objects for all\n   * AdaptationSet nodes contained within the Period.\n   *\n   * @name toAdaptationSetsCallback\n   * @function\n   * @param {PeriodInformation} period\n   *        Period object containing necessary period information\n   * @param {number} periodStart\n   *        Start time of the Period within the mpd\n   * @return {RepresentationInformation[]}\n   *         List of objects containing Representaion information\n   */\n\n  /**\n   * Returns a callback for Array.prototype.map for mapping Period nodes to a list of\n   * Representation information objects\n   *\n   * @param {Object} mpdAttributes\n   *        Contains attributes inherited by the mpd\n   * @param {string[]} mpdBaseUrls\n   *        Contains list of resolved base urls inherited by the mpd\n   * @return {toAdaptationSetsCallback}\n   *         Callback map function\n   */\n\n\n  var toAdaptationSets = function toAdaptationSets(mpdAttributes, mpdBaseUrls) {\n    return function (period, index) {\n      var periodBaseUrls = buildBaseUrls(mpdBaseUrls, findChildren(period.node, 'BaseURL'));\n      var periodAttributes = merge(mpdAttributes, {\n        periodStart: period.attributes.start\n      });\n\n      if (typeof period.attributes.duration === 'number') {\n        periodAttributes.periodDuration = period.attributes.duration;\n      }\n\n      var adaptationSets = findChildren(period.node, 'AdaptationSet');\n      var periodSegmentInfo = getSegmentInformation(period.node);\n      return flatten(adaptationSets.map(toRepresentations(periodAttributes, periodBaseUrls, periodSegmentInfo)));\n    };\n  };\n  /**\n   * Gets Period@start property for a given period.\n   *\n   * @param {Object} options\n   *        Options object\n   * @param {Object} options.attributes\n   *        Period attributes\n   * @param {Object} [options.priorPeriodAttributes]\n   *        Prior period attributes (if prior period is available)\n   * @param {string} options.mpdType\n   *        The MPD@type these periods came from\n   * @return {number|null}\n   *         The period start, or null if it's an early available period or error\n   */\n\n\n  var getPeriodStart = function getPeriodStart(_ref) {\n    var attributes = _ref.attributes,\n        priorPeriodAttributes = _ref.priorPeriodAttributes,\n        mpdType = _ref.mpdType; // Summary of period start time calculation from DASH spec section 5.3.2.1\n    //\n    // A period's start is the first period's start + time elapsed after playing all\n    // prior periods to this one. Periods continue one after the other in time (without\n    // gaps) until the end of the presentation.\n    //\n    // The value of Period@start should be:\n    // 1. if Period@start is present: value of Period@start\n    // 2. if previous period exists and it has @duration: previous Period@start +\n    //    previous Period@duration\n    // 3. if this is first period and MPD@type is 'static': 0\n    // 4. in all other cases, consider the period an \"early available period\" (note: not\n    //    currently supported)\n    // (1)\n\n    if (typeof attributes.start === 'number') {\n      return attributes.start;\n    } // (2)\n\n\n    if (priorPeriodAttributes && typeof priorPeriodAttributes.start === 'number' && typeof priorPeriodAttributes.duration === 'number') {\n      return priorPeriodAttributes.start + priorPeriodAttributes.duration;\n    } // (3)\n\n\n    if (!priorPeriodAttributes && mpdType === 'static') {\n      return 0;\n    } // (4)\n    // There is currently no logic for calculating the Period@start value if there is\n    // no Period@start or prior Period@start and Period@duration available. This is not made\n    // explicit by the DASH interop guidelines or the DASH spec, however, since there's\n    // nothing about any other resolution strategies, it's implied. Thus, this case should\n    // be considered an early available period, or error, and null should suffice for both\n    // of those cases.\n\n\n    return null;\n  };\n  /**\n   * Traverses the mpd xml tree to generate a list of Representation information objects\n   * that have inherited attributes from parent nodes\n   *\n   * @param {Node} mpd\n   *        The root node of the mpd\n   * @param {Object} options\n   *        Available options for inheritAttributes\n   * @param {string} options.manifestUri\n   *        The uri source of the mpd\n   * @param {number} options.NOW\n   *        Current time per DASH IOP.  Default is current time in ms since epoch\n   * @param {number} options.clientOffset\n   *        Client time difference from NOW (in milliseconds)\n   * @return {RepresentationInformation[]}\n   *         List of objects containing Representation information\n   */\n\n\n  var inheritAttributes = function inheritAttributes(mpd, options) {\n    if (options === void 0) {\n      options = {};\n    }\n\n    var _options = options,\n        _options$manifestUri = _options.manifestUri,\n        manifestUri = _options$manifestUri === void 0 ? '' : _options$manifestUri,\n        _options$NOW = _options.NOW,\n        NOW = _options$NOW === void 0 ? Date.now() : _options$NOW,\n        _options$clientOffset = _options.clientOffset,\n        clientOffset = _options$clientOffset === void 0 ? 0 : _options$clientOffset;\n    var periodNodes = findChildren(mpd, 'Period');\n\n    if (!periodNodes.length) {\n      throw new Error(errors.INVALID_NUMBER_OF_PERIOD);\n    }\n\n    var locations = findChildren(mpd, 'Location');\n    var mpdAttributes = parseAttributes(mpd);\n    var mpdBaseUrls = buildBaseUrls([manifestUri], findChildren(mpd, 'BaseURL')); // See DASH spec section 5.3.1.2, Semantics of MPD element. Default type to 'static'.\n\n    mpdAttributes.type = mpdAttributes.type || 'static';\n    mpdAttributes.sourceDuration = mpdAttributes.mediaPresentationDuration || 0;\n    mpdAttributes.NOW = NOW;\n    mpdAttributes.clientOffset = clientOffset;\n\n    if (locations.length) {\n      mpdAttributes.locations = locations.map(getContent);\n    }\n\n    var periods = []; // Since toAdaptationSets acts on individual periods right now, the simplest approach to\n    // adding properties that require looking at prior periods is to parse attributes and add\n    // missing ones before toAdaptationSets is called. If more such properties are added, it\n    // may be better to refactor toAdaptationSets.\n\n    periodNodes.forEach(function (node, index) {\n      var attributes = parseAttributes(node); // Use the last modified prior period, as it may contain added information necessary\n      // for this period.\n\n      var priorPeriod = periods[index - 1];\n      attributes.start = getPeriodStart({\n        attributes: attributes,\n        priorPeriodAttributes: priorPeriod ? priorPeriod.attributes : null,\n        mpdType: mpdAttributes.type\n      });\n      periods.push({\n        node: node,\n        attributes: attributes\n      });\n    });\n    return {\n      locations: mpdAttributes.locations,\n      representationInfo: flatten(periods.map(toAdaptationSets(mpdAttributes, mpdBaseUrls)))\n    };\n  };\n\n  var stringToMpdXml = function stringToMpdXml(manifestString) {\n    if (manifestString === '') {\n      throw new Error(errors.DASH_EMPTY_MANIFEST);\n    }\n\n    var parser = new DOMParser();\n    var xml;\n    var mpd;\n\n    try {\n      xml = parser.parseFromString(manifestString, 'application/xml');\n      mpd = xml && xml.documentElement.tagName === 'MPD' ? xml.documentElement : null;\n    } catch (e) {// ie 11 throwsw on invalid xml\n    }\n\n    if (!mpd || mpd && mpd.getElementsByTagName('parsererror').length > 0) {\n      throw new Error(errors.DASH_INVALID_XML);\n    }\n\n    return mpd;\n  };\n  /**\n   * Parses the manifest for a UTCTiming node, returning the nodes attributes if found\n   *\n   * @param {string} mpd\n   *        XML string of the MPD manifest\n   * @return {Object|null}\n   *         Attributes of UTCTiming node specified in the manifest. Null if none found\n   */\n\n\n  var parseUTCTimingScheme = function parseUTCTimingScheme(mpd) {\n    var UTCTimingNode = findChildren(mpd, 'UTCTiming')[0];\n\n    if (!UTCTimingNode) {\n      return null;\n    }\n\n    var attributes = parseAttributes(UTCTimingNode);\n\n    switch (attributes.schemeIdUri) {\n      case 'urn:mpeg:dash:utc:http-head:2014':\n      case 'urn:mpeg:dash:utc:http-head:2012':\n        attributes.method = 'HEAD';\n        break;\n\n      case 'urn:mpeg:dash:utc:http-xsdate:2014':\n      case 'urn:mpeg:dash:utc:http-iso:2014':\n      case 'urn:mpeg:dash:utc:http-xsdate:2012':\n      case 'urn:mpeg:dash:utc:http-iso:2012':\n        attributes.method = 'GET';\n        break;\n\n      case 'urn:mpeg:dash:utc:direct:2014':\n      case 'urn:mpeg:dash:utc:direct:2012':\n        attributes.method = 'DIRECT';\n        attributes.value = Date.parse(attributes.value);\n        break;\n\n      case 'urn:mpeg:dash:utc:http-ntp:2014':\n      case 'urn:mpeg:dash:utc:ntp:2014':\n      case 'urn:mpeg:dash:utc:sntp:2014':\n      default:\n        throw new Error(errors.UNSUPPORTED_UTC_TIMING_SCHEME);\n    }\n\n    return attributes;\n  };\n  /*\n   * Given a DASH manifest string and options, parses the DASH manifest into an object in the\n   * form outputed by m3u8-parser and accepted by videojs/http-streaming.\n   *\n   * For live DASH manifests, if `previousManifest` is provided in options, then the newly\n   * parsed DASH manifest will have its media sequence and discontinuity sequence values\n   * updated to reflect its position relative to the prior manifest.\n   *\n   * @param {string} manifestString - the DASH manifest as a string\n   * @param {options} [options] - any options\n   *\n   * @return {Object} the manifest object\n   */\n\n  var parse = function parse(manifestString, options) {\n    if (options === void 0) {\n      options = {};\n    }\n\n    var parsedManifestInfo = inheritAttributes(stringToMpdXml(manifestString), options);\n    var playlists = toPlaylists(parsedManifestInfo.representationInfo);\n    return toM3u8({\n      dashPlaylists: playlists,\n      locations: parsedManifestInfo.locations,\n      sidxMapping: options.sidxMapping,\n      previousManifest: options.previousManifest\n    });\n  };\n  /**\n   * Parses the manifest for a UTCTiming node, returning the nodes attributes if found\n   *\n   * @param {string} manifestString\n   *        XML string of the MPD manifest\n   * @return {Object|null}\n   *         Attributes of UTCTiming node specified in the manifest. Null if none found\n   */\n\n\n  var parseUTCTiming = function parseUTCTiming(manifestString) {\n    return parseUTCTimingScheme(stringToMpdXml(manifestString));\n  };\n\n  var MAX_UINT32 = Math.pow(2, 32);\n\n  var getUint64$1 = function getUint64(uint8) {\n    var dv = new DataView(uint8.buffer, uint8.byteOffset, uint8.byteLength);\n    var value;\n\n    if (dv.getBigUint64) {\n      value = dv.getBigUint64(0);\n\n      if (value < Number.MAX_SAFE_INTEGER) {\n        return Number(value);\n      }\n\n      return value;\n    }\n\n    return dv.getUint32(0) * MAX_UINT32 + dv.getUint32(4);\n  };\n\n  var numbers = {\n    getUint64: getUint64$1,\n    MAX_UINT32: MAX_UINT32\n  };\n\n  var getUint64 = numbers.getUint64;\n\n  var parseSidx = function parseSidx(data) {\n    var view = new DataView(data.buffer, data.byteOffset, data.byteLength),\n        result = {\n      version: data[0],\n      flags: new Uint8Array(data.subarray(1, 4)),\n      references: [],\n      referenceId: view.getUint32(4),\n      timescale: view.getUint32(8)\n    },\n        i = 12;\n\n    if (result.version === 0) {\n      result.earliestPresentationTime = view.getUint32(i);\n      result.firstOffset = view.getUint32(i + 4);\n      i += 8;\n    } else {\n      // read 64 bits\n      result.earliestPresentationTime = getUint64(data.subarray(i));\n      result.firstOffset = getUint64(data.subarray(i + 8));\n      i += 16;\n    }\n\n    i += 2; // reserved\n\n    var referenceCount = view.getUint16(i);\n    i += 2; // start of references\n\n    for (; referenceCount > 0; i += 12, referenceCount--) {\n      result.references.push({\n        referenceType: (data[i] & 0x80) >>> 7,\n        referencedSize: view.getUint32(i) & 0x7FFFFFFF,\n        subsegmentDuration: view.getUint32(i + 4),\n        startsWithSap: !!(data[i + 8] & 0x80),\n        sapType: (data[i + 8] & 0x70) >>> 4,\n        sapDeltaTime: view.getUint32(i + 8) & 0x0FFFFFFF\n      });\n    }\n\n    return result;\n  };\n\n  var parseSidx_1 = parseSidx;\n\n  var ID3 = toUint8([0x49, 0x44, 0x33]);\n  var getId3Size = function getId3Size(bytes, offset) {\n    if (offset === void 0) {\n      offset = 0;\n    }\n\n    bytes = toUint8(bytes);\n    var flags = bytes[offset + 5];\n    var returnSize = bytes[offset + 6] << 21 | bytes[offset + 7] << 14 | bytes[offset + 8] << 7 | bytes[offset + 9];\n    var footerPresent = (flags & 16) >> 4;\n\n    if (footerPresent) {\n      return returnSize + 20;\n    }\n\n    return returnSize + 10;\n  };\n  var getId3Offset = function getId3Offset(bytes, offset) {\n    if (offset === void 0) {\n      offset = 0;\n    }\n\n    bytes = toUint8(bytes);\n\n    if (bytes.length - offset < 10 || !bytesMatch(bytes, ID3, {\n      offset: offset\n    })) {\n      return offset;\n    }\n\n    offset += getId3Size(bytes, offset); // recursive check for id3 tags as some files\n    // have multiple ID3 tag sections even though\n    // they should not.\n\n    return getId3Offset(bytes, offset);\n  };\n\n  var normalizePath$1 = function normalizePath(path) {\n    if (typeof path === 'string') {\n      return stringToBytes(path);\n    }\n\n    if (typeof path === 'number') {\n      return path;\n    }\n\n    return path;\n  };\n\n  var normalizePaths$1 = function normalizePaths(paths) {\n    if (!Array.isArray(paths)) {\n      return [normalizePath$1(paths)];\n    }\n\n    return paths.map(function (p) {\n      return normalizePath$1(p);\n    });\n  };\n  /**\n   * find any number of boxes by name given a path to it in an iso bmff\n   * such as mp4.\n   *\n   * @param {TypedArray} bytes\n   *        bytes for the iso bmff to search for boxes in\n   *\n   * @param {Uint8Array[]|string[]|string|Uint8Array} name\n   *        An array of paths or a single path representing the name\n   *        of boxes to search through in bytes. Paths may be\n   *        uint8 (character codes) or strings.\n   *\n   * @param {boolean} [complete=false]\n   *        Should we search only for complete boxes on the final path.\n   *        This is very useful when you do not want to get back partial boxes\n   *        in the case of streaming files.\n   *\n   * @return {Uint8Array[]}\n   *         An array of the end paths that we found.\n   */\n\n  var findBox = function findBox(bytes, paths, complete) {\n    if (complete === void 0) {\n      complete = false;\n    }\n\n    paths = normalizePaths$1(paths);\n    bytes = toUint8(bytes);\n    var results = [];\n\n    if (!paths.length) {\n      // short-circuit the search for empty paths\n      return results;\n    }\n\n    var i = 0;\n\n    while (i < bytes.length) {\n      var size = (bytes[i] << 24 | bytes[i + 1] << 16 | bytes[i + 2] << 8 | bytes[i + 3]) >>> 0;\n      var type = bytes.subarray(i + 4, i + 8); // invalid box format.\n\n      if (size === 0) {\n        break;\n      }\n\n      var end = i + size;\n\n      if (end > bytes.length) {\n        // this box is bigger than the number of bytes we have\n        // and complete is set, we cannot find any more boxes.\n        if (complete) {\n          break;\n        }\n\n        end = bytes.length;\n      }\n\n      var data = bytes.subarray(i + 8, end);\n\n      if (bytesMatch(type, paths[0])) {\n        if (paths.length === 1) {\n          // this is the end of the path and we've found the box we were\n          // looking for\n          results.push(data);\n        } else {\n          // recursively search for the next box along the path\n          results.push.apply(results, findBox(data, paths.slice(1), complete));\n        }\n      }\n\n      i = end;\n    } // we've finished searching all of bytes\n\n\n    return results;\n  };\n\n  // https://matroska-org.github.io/libebml/specs.html\n  // https://www.matroska.org/technical/elements.html\n  // https://www.webmproject.org/docs/container/\n\n  var EBML_TAGS = {\n    EBML: toUint8([0x1A, 0x45, 0xDF, 0xA3]),\n    DocType: toUint8([0x42, 0x82]),\n    Segment: toUint8([0x18, 0x53, 0x80, 0x67]),\n    SegmentInfo: toUint8([0x15, 0x49, 0xA9, 0x66]),\n    Tracks: toUint8([0x16, 0x54, 0xAE, 0x6B]),\n    Track: toUint8([0xAE]),\n    TrackNumber: toUint8([0xd7]),\n    DefaultDuration: toUint8([0x23, 0xe3, 0x83]),\n    TrackEntry: toUint8([0xAE]),\n    TrackType: toUint8([0x83]),\n    FlagDefault: toUint8([0x88]),\n    CodecID: toUint8([0x86]),\n    CodecPrivate: toUint8([0x63, 0xA2]),\n    VideoTrack: toUint8([0xe0]),\n    AudioTrack: toUint8([0xe1]),\n    // Not used yet, but will be used for live webm/mkv\n    // see https://www.matroska.org/technical/basics.html#block-structure\n    // see https://www.matroska.org/technical/basics.html#simpleblock-structure\n    Cluster: toUint8([0x1F, 0x43, 0xB6, 0x75]),\n    Timestamp: toUint8([0xE7]),\n    TimestampScale: toUint8([0x2A, 0xD7, 0xB1]),\n    BlockGroup: toUint8([0xA0]),\n    BlockDuration: toUint8([0x9B]),\n    Block: toUint8([0xA1]),\n    SimpleBlock: toUint8([0xA3])\n  };\n  /**\n   * This is a simple table to determine the length\n   * of things in ebml. The length is one based (starts at 1,\n   * rather than zero) and for every zero bit before a one bit\n   * we add one to length. We also need this table because in some\n   * case we have to xor all the length bits from another value.\n   */\n\n  var LENGTH_TABLE = [128, 64, 32, 16, 8, 4, 2, 1];\n\n  var getLength = function getLength(_byte) {\n    var len = 1;\n\n    for (var i = 0; i < LENGTH_TABLE.length; i++) {\n      if (_byte & LENGTH_TABLE[i]) {\n        break;\n      }\n\n      len++;\n    }\n\n    return len;\n  }; // length in ebml is stored in the first 4 to 8 bits\n  // of the first byte. 4 for the id length and 8 for the\n  // data size length. Length is measured by converting the number to binary\n  // then 1 + the number of zeros before a 1 is encountered starting\n  // from the left.\n\n\n  var getvint = function getvint(bytes, offset, removeLength, signed) {\n    if (removeLength === void 0) {\n      removeLength = true;\n    }\n\n    if (signed === void 0) {\n      signed = false;\n    }\n\n    var length = getLength(bytes[offset]);\n    var valueBytes = bytes.subarray(offset, offset + length); // NOTE that we do **not** subarray here because we need to copy these bytes\n    // as they will be modified below to remove the dataSizeLen bits and we do not\n    // want to modify the original data. normally we could just call slice on\n    // uint8array but ie 11 does not support that...\n\n    if (removeLength) {\n      valueBytes = Array.prototype.slice.call(bytes, offset, offset + length);\n      valueBytes[0] ^= LENGTH_TABLE[length - 1];\n    }\n\n    return {\n      length: length,\n      value: bytesToNumber(valueBytes, {\n        signed: signed\n      }),\n      bytes: valueBytes\n    };\n  };\n\n  var normalizePath = function normalizePath(path) {\n    if (typeof path === 'string') {\n      return path.match(/.{1,2}/g).map(function (p) {\n        return normalizePath(p);\n      });\n    }\n\n    if (typeof path === 'number') {\n      return numberToBytes(path);\n    }\n\n    return path;\n  };\n\n  var normalizePaths = function normalizePaths(paths) {\n    if (!Array.isArray(paths)) {\n      return [normalizePath(paths)];\n    }\n\n    return paths.map(function (p) {\n      return normalizePath(p);\n    });\n  };\n\n  var getInfinityDataSize = function getInfinityDataSize(id, bytes, offset) {\n    if (offset >= bytes.length) {\n      return bytes.length;\n    }\n\n    var innerid = getvint(bytes, offset, false);\n\n    if (bytesMatch(id.bytes, innerid.bytes)) {\n      return offset;\n    }\n\n    var dataHeader = getvint(bytes, offset + innerid.length);\n    return getInfinityDataSize(id, bytes, offset + dataHeader.length + dataHeader.value + innerid.length);\n  };\n  /**\n   * Notes on the EBLM format.\n   *\n   * EBLM uses \"vints\" tags. Every vint tag contains\n   * two parts\n   *\n   * 1. The length from the first byte. You get this by\n   *    converting the byte to binary and counting the zeros\n   *    before a 1. Then you add 1 to that. Examples\n   *    00011111 = length 4 because there are 3 zeros before a 1.\n   *    00100000 = length 3 because there are 2 zeros before a 1.\n   *    00000011 = length 7 because there are 6 zeros before a 1.\n   *\n   * 2. The bits used for length are removed from the first byte\n   *    Then all the bytes are merged into a value. NOTE: this\n   *    is not the case for id ebml tags as there id includes\n   *    length bits.\n   *\n   */\n\n\n  var findEbml = function findEbml(bytes, paths) {\n    paths = normalizePaths(paths);\n    bytes = toUint8(bytes);\n    var results = [];\n\n    if (!paths.length) {\n      return results;\n    }\n\n    var i = 0;\n\n    while (i < bytes.length) {\n      var id = getvint(bytes, i, false);\n      var dataHeader = getvint(bytes, i + id.length);\n      var dataStart = i + id.length + dataHeader.length; // dataSize is unknown or this is a live stream\n\n      if (dataHeader.value === 0x7f) {\n        dataHeader.value = getInfinityDataSize(id, bytes, dataStart);\n\n        if (dataHeader.value !== bytes.length) {\n          dataHeader.value -= dataStart;\n        }\n      }\n\n      var dataEnd = dataStart + dataHeader.value > bytes.length ? bytes.length : dataStart + dataHeader.value;\n      var data = bytes.subarray(dataStart, dataEnd);\n\n      if (bytesMatch(paths[0], id.bytes)) {\n        if (paths.length === 1) {\n          // this is the end of the paths and we've found the tag we were\n          // looking for\n          results.push(data);\n        } else {\n          // recursively search for the next tag inside of the data\n          // of this one\n          results = results.concat(findEbml(data, paths.slice(1)));\n        }\n      }\n\n      var totalLength = id.length + dataHeader.length + data.length; // move past this tag entirely, we are not looking for it\n\n      i += totalLength;\n    }\n\n    return results;\n  }; // see https://www.matroska.org/technical/basics.html#block-structure\n\n  var NAL_TYPE_ONE = toUint8([0x00, 0x00, 0x00, 0x01]);\n  var NAL_TYPE_TWO = toUint8([0x00, 0x00, 0x01]);\n  var EMULATION_PREVENTION = toUint8([0x00, 0x00, 0x03]);\n  /**\n   * Expunge any \"Emulation Prevention\" bytes from a \"Raw Byte\n   * Sequence Payload\"\n   *\n   * @param data {Uint8Array} the bytes of a RBSP from a NAL\n   * unit\n   * @return {Uint8Array} the RBSP without any Emulation\n   * Prevention Bytes\n   */\n\n  var discardEmulationPreventionBytes = function discardEmulationPreventionBytes(bytes) {\n    var positions = [];\n    var i = 1; // Find all `Emulation Prevention Bytes`\n\n    while (i < bytes.length - 2) {\n      if (bytesMatch(bytes.subarray(i, i + 3), EMULATION_PREVENTION)) {\n        positions.push(i + 2);\n        i++;\n      }\n\n      i++;\n    } // If no Emulation Prevention Bytes were found just return the original\n    // array\n\n\n    if (positions.length === 0) {\n      return bytes;\n    } // Create a new array to hold the NAL unit data\n\n\n    var newLength = bytes.length - positions.length;\n    var newData = new Uint8Array(newLength);\n    var sourceIndex = 0;\n\n    for (i = 0; i < newLength; sourceIndex++, i++) {\n      if (sourceIndex === positions[0]) {\n        // Skip this byte\n        sourceIndex++; // Remove this position index\n\n        positions.shift();\n      }\n\n      newData[i] = bytes[sourceIndex];\n    }\n\n    return newData;\n  };\n  var findNal = function findNal(bytes, dataType, types, nalLimit) {\n    if (nalLimit === void 0) {\n      nalLimit = Infinity;\n    }\n\n    bytes = toUint8(bytes);\n    types = [].concat(types);\n    var i = 0;\n    var nalStart;\n    var nalsFound = 0; // keep searching until:\n    // we reach the end of bytes\n    // we reach the maximum number of nals they want to seach\n    // NOTE: that we disregard nalLimit when we have found the start\n    // of the nal we want so that we can find the end of the nal we want.\n\n    while (i < bytes.length && (nalsFound < nalLimit || nalStart)) {\n      var nalOffset = void 0;\n\n      if (bytesMatch(bytes.subarray(i), NAL_TYPE_ONE)) {\n        nalOffset = 4;\n      } else if (bytesMatch(bytes.subarray(i), NAL_TYPE_TWO)) {\n        nalOffset = 3;\n      } // we are unsynced,\n      // find the next nal unit\n\n\n      if (!nalOffset) {\n        i++;\n        continue;\n      }\n\n      nalsFound++;\n\n      if (nalStart) {\n        return discardEmulationPreventionBytes(bytes.subarray(nalStart, i));\n      }\n\n      var nalType = void 0;\n\n      if (dataType === 'h264') {\n        nalType = bytes[i + nalOffset] & 0x1f;\n      } else if (dataType === 'h265') {\n        nalType = bytes[i + nalOffset] >> 1 & 0x3f;\n      }\n\n      if (types.indexOf(nalType) !== -1) {\n        nalStart = i + nalOffset;\n      } // nal header is 1 length for h264, and 2 for h265\n\n\n      i += nalOffset + (dataType === 'h264' ? 1 : 2);\n    }\n\n    return bytes.subarray(0, 0);\n  };\n  var findH264Nal = function findH264Nal(bytes, type, nalLimit) {\n    return findNal(bytes, 'h264', type, nalLimit);\n  };\n  var findH265Nal = function findH265Nal(bytes, type, nalLimit) {\n    return findNal(bytes, 'h265', type, nalLimit);\n  };\n\n  var CONSTANTS = {\n    // \"webm\" string literal in hex\n    'webm': toUint8([0x77, 0x65, 0x62, 0x6d]),\n    // \"matroska\" string literal in hex\n    'matroska': toUint8([0x6d, 0x61, 0x74, 0x72, 0x6f, 0x73, 0x6b, 0x61]),\n    // \"fLaC\" string literal in hex\n    'flac': toUint8([0x66, 0x4c, 0x61, 0x43]),\n    // \"OggS\" string literal in hex\n    'ogg': toUint8([0x4f, 0x67, 0x67, 0x53]),\n    // ac-3 sync byte, also works for ec-3 as that is simply a codec\n    // of ac-3\n    'ac3': toUint8([0x0b, 0x77]),\n    // \"RIFF\" string literal in hex used for wav and avi\n    'riff': toUint8([0x52, 0x49, 0x46, 0x46]),\n    // \"AVI\" string literal in hex\n    'avi': toUint8([0x41, 0x56, 0x49]),\n    // \"WAVE\" string literal in hex\n    'wav': toUint8([0x57, 0x41, 0x56, 0x45]),\n    // \"ftyp3g\" string literal in hex\n    '3gp': toUint8([0x66, 0x74, 0x79, 0x70, 0x33, 0x67]),\n    // \"ftyp\" string literal in hex\n    'mp4': toUint8([0x66, 0x74, 0x79, 0x70]),\n    // \"styp\" string literal in hex\n    'fmp4': toUint8([0x73, 0x74, 0x79, 0x70]),\n    // \"ftypqt\" string literal in hex\n    'mov': toUint8([0x66, 0x74, 0x79, 0x70, 0x71, 0x74]),\n    // moov string literal in hex\n    'moov': toUint8([0x6D, 0x6F, 0x6F, 0x76]),\n    // moof string literal in hex\n    'moof': toUint8([0x6D, 0x6F, 0x6F, 0x66])\n  };\n  var _isLikely = {\n    aac: function aac(bytes) {\n      var offset = getId3Offset(bytes);\n      return bytesMatch(bytes, [0xFF, 0x10], {\n        offset: offset,\n        mask: [0xFF, 0x16]\n      });\n    },\n    mp3: function mp3(bytes) {\n      var offset = getId3Offset(bytes);\n      return bytesMatch(bytes, [0xFF, 0x02], {\n        offset: offset,\n        mask: [0xFF, 0x06]\n      });\n    },\n    webm: function webm(bytes) {\n      var docType = findEbml(bytes, [EBML_TAGS.EBML, EBML_TAGS.DocType])[0]; // check if DocType EBML tag is webm\n\n      return bytesMatch(docType, CONSTANTS.webm);\n    },\n    mkv: function mkv(bytes) {\n      var docType = findEbml(bytes, [EBML_TAGS.EBML, EBML_TAGS.DocType])[0]; // check if DocType EBML tag is matroska\n\n      return bytesMatch(docType, CONSTANTS.matroska);\n    },\n    mp4: function mp4(bytes) {\n      // if this file is another base media file format, it is not mp4\n      if (_isLikely['3gp'](bytes) || _isLikely.mov(bytes)) {\n        return false;\n      } // if this file starts with a ftyp or styp box its mp4\n\n\n      if (bytesMatch(bytes, CONSTANTS.mp4, {\n        offset: 4\n      }) || bytesMatch(bytes, CONSTANTS.fmp4, {\n        offset: 4\n      })) {\n        return true;\n      } // if this file starts with a moof/moov box its mp4\n\n\n      if (bytesMatch(bytes, CONSTANTS.moof, {\n        offset: 4\n      }) || bytesMatch(bytes, CONSTANTS.moov, {\n        offset: 4\n      })) {\n        return true;\n      }\n    },\n    mov: function mov(bytes) {\n      return bytesMatch(bytes, CONSTANTS.mov, {\n        offset: 4\n      });\n    },\n    '3gp': function gp(bytes) {\n      return bytesMatch(bytes, CONSTANTS['3gp'], {\n        offset: 4\n      });\n    },\n    ac3: function ac3(bytes) {\n      var offset = getId3Offset(bytes);\n      return bytesMatch(bytes, CONSTANTS.ac3, {\n        offset: offset\n      });\n    },\n    ts: function ts(bytes) {\n      if (bytes.length < 189 && bytes.length >= 1) {\n        return bytes[0] === 0x47;\n      }\n\n      var i = 0; // check the first 376 bytes for two matching sync bytes\n\n      while (i + 188 < bytes.length && i < 188) {\n        if (bytes[i] === 0x47 && bytes[i + 188] === 0x47) {\n          return true;\n        }\n\n        i += 1;\n      }\n\n      return false;\n    },\n    flac: function flac(bytes) {\n      var offset = getId3Offset(bytes);\n      return bytesMatch(bytes, CONSTANTS.flac, {\n        offset: offset\n      });\n    },\n    ogg: function ogg(bytes) {\n      return bytesMatch(bytes, CONSTANTS.ogg);\n    },\n    avi: function avi(bytes) {\n      return bytesMatch(bytes, CONSTANTS.riff) && bytesMatch(bytes, CONSTANTS.avi, {\n        offset: 8\n      });\n    },\n    wav: function wav(bytes) {\n      return bytesMatch(bytes, CONSTANTS.riff) && bytesMatch(bytes, CONSTANTS.wav, {\n        offset: 8\n      });\n    },\n    'h264': function h264(bytes) {\n      // find seq_parameter_set_rbsp\n      return findH264Nal(bytes, 7, 3).length;\n    },\n    'h265': function h265(bytes) {\n      // find video_parameter_set_rbsp or seq_parameter_set_rbsp\n      return findH265Nal(bytes, [32, 33], 3).length;\n    }\n  }; // get all the isLikely functions\n  // but make sure 'ts' is above h264 and h265\n  // but below everything else as it is the least specific\n\n  var isLikelyTypes = Object.keys(_isLikely) // remove ts, h264, h265\n  .filter(function (t) {\n    return t !== 'ts' && t !== 'h264' && t !== 'h265';\n  }) // add it back to the bottom\n  .concat(['ts', 'h264', 'h265']); // make sure we are dealing with uint8 data.\n\n  isLikelyTypes.forEach(function (type) {\n    var isLikelyFn = _isLikely[type];\n\n    _isLikely[type] = function (bytes) {\n      return isLikelyFn(toUint8(bytes));\n    };\n  }); // export after wrapping\n\n  var isLikely = _isLikely; // A useful list of file signatures can be found here\n  // https://en.wikipedia.org/wiki/List_of_file_signatures\n\n  var detectContainerForBytes = function detectContainerForBytes(bytes) {\n    bytes = toUint8(bytes);\n\n    for (var i = 0; i < isLikelyTypes.length; i++) {\n      var type = isLikelyTypes[i];\n\n      if (isLikely[type](bytes)) {\n        return type;\n      }\n    }\n\n    return '';\n  }; // fmp4 is not a container\n\n  var isLikelyFmp4MediaSegment = function isLikelyFmp4MediaSegment(bytes) {\n    return findBox(bytes, ['moof']).length > 0;\n  };\n\n  /**\n   * mux.js\n   *\n   * Copyright (c) Brightcove\n   * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE\n   */\n  var ONE_SECOND_IN_TS = 90000,\n      // 90kHz clock\n  secondsToVideoTs,\n      secondsToAudioTs,\n      videoTsToSeconds,\n      audioTsToSeconds,\n      audioTsToVideoTs,\n      videoTsToAudioTs,\n      metadataTsToSeconds;\n\n  secondsToVideoTs = function secondsToVideoTs(seconds) {\n    return seconds * ONE_SECOND_IN_TS;\n  };\n\n  secondsToAudioTs = function secondsToAudioTs(seconds, sampleRate) {\n    return seconds * sampleRate;\n  };\n\n  videoTsToSeconds = function videoTsToSeconds(timestamp) {\n    return timestamp / ONE_SECOND_IN_TS;\n  };\n\n  audioTsToSeconds = function audioTsToSeconds(timestamp, sampleRate) {\n    return timestamp / sampleRate;\n  };\n\n  audioTsToVideoTs = function audioTsToVideoTs(timestamp, sampleRate) {\n    return secondsToVideoTs(audioTsToSeconds(timestamp, sampleRate));\n  };\n\n  videoTsToAudioTs = function videoTsToAudioTs(timestamp, sampleRate) {\n    return secondsToAudioTs(videoTsToSeconds(timestamp), sampleRate);\n  };\n  /**\n   * Adjust ID3 tag or caption timing information by the timeline pts values\n   * (if keepOriginalTimestamps is false) and convert to seconds\n   */\n\n\n  metadataTsToSeconds = function metadataTsToSeconds(timestamp, timelineStartPts, keepOriginalTimestamps) {\n    return videoTsToSeconds(keepOriginalTimestamps ? timestamp : timestamp - timelineStartPts);\n  };\n\n  var clock = {\n    ONE_SECOND_IN_TS: ONE_SECOND_IN_TS,\n    secondsToVideoTs: secondsToVideoTs,\n    secondsToAudioTs: secondsToAudioTs,\n    videoTsToSeconds: videoTsToSeconds,\n    audioTsToSeconds: audioTsToSeconds,\n    audioTsToVideoTs: audioTsToVideoTs,\n    videoTsToAudioTs: videoTsToAudioTs,\n    metadataTsToSeconds: metadataTsToSeconds\n  };\n  var clock_1 = clock.ONE_SECOND_IN_TS;\n\n  /*! @name @videojs/http-streaming @version 2.14.3 @license Apache-2.0 */\n  /**\n   * @file resolve-url.js - Handling how URLs are resolved and manipulated\n   */\n\n  var resolveUrl = resolveUrl$2;\n  /**\n   * Checks whether xhr request was redirected and returns correct url depending\n   * on `handleManifestRedirects` option\n   *\n   * @api private\n   *\n   * @param  {string} url - an url being requested\n   * @param  {XMLHttpRequest} req - xhr request result\n   *\n   * @return {string}\n   */\n\n  var resolveManifestRedirect = function resolveManifestRedirect(handleManifestRedirect, url, req) {\n    // To understand how the responseURL below is set and generated:\n    // - https://fetch.spec.whatwg.org/#concept-response-url\n    // - https://fetch.spec.whatwg.org/#atomic-http-redirect-handling\n    if (handleManifestRedirect && req && req.responseURL && url !== req.responseURL) {\n      return req.responseURL;\n    }\n\n    return url;\n  };\n\n  var logger = function logger(source) {\n    if (videojs.log.debug) {\n      return videojs.log.debug.bind(videojs, 'VHS:', source + \" >\");\n    }\n\n    return function () {};\n  };\n  /**\n   * ranges\n   *\n   * Utilities for working with TimeRanges.\n   *\n   */\n\n\n  var TIME_FUDGE_FACTOR = 1 / 30; // Comparisons between time values such as current time and the end of the buffered range\n  // can be misleading because of precision differences or when the current media has poorly\n  // aligned audio and video, which can cause values to be slightly off from what you would\n  // expect. This value is what we consider to be safe to use in such comparisons to account\n  // for these scenarios.\n\n  var SAFE_TIME_DELTA = TIME_FUDGE_FACTOR * 3;\n\n  var filterRanges = function filterRanges(timeRanges, predicate) {\n    var results = [];\n    var i;\n\n    if (timeRanges && timeRanges.length) {\n      // Search for ranges that match the predicate\n      for (i = 0; i < timeRanges.length; i++) {\n        if (predicate(timeRanges.start(i), timeRanges.end(i))) {\n          results.push([timeRanges.start(i), timeRanges.end(i)]);\n        }\n      }\n    }\n\n    return videojs.createTimeRanges(results);\n  };\n  /**\n   * Attempts to find the buffered TimeRange that contains the specified\n   * time.\n   *\n   * @param {TimeRanges} buffered - the TimeRanges object to query\n   * @param {number} time  - the time to filter on.\n   * @return {TimeRanges} a new TimeRanges object\n   */\n\n\n  var findRange = function findRange(buffered, time) {\n    return filterRanges(buffered, function (start, end) {\n      return start - SAFE_TIME_DELTA <= time && end + SAFE_TIME_DELTA >= time;\n    });\n  };\n  /**\n   * Returns the TimeRanges that begin later than the specified time.\n   *\n   * @param {TimeRanges} timeRanges - the TimeRanges object to query\n   * @param {number} time - the time to filter on.\n   * @return {TimeRanges} a new TimeRanges object.\n   */\n\n\n  var findNextRange = function findNextRange(timeRanges, time) {\n    return filterRanges(timeRanges, function (start) {\n      return start - TIME_FUDGE_FACTOR >= time;\n    });\n  };\n  /**\n   * Returns gaps within a list of TimeRanges\n   *\n   * @param {TimeRanges} buffered - the TimeRanges object\n   * @return {TimeRanges} a TimeRanges object of gaps\n   */\n\n\n  var findGaps = function findGaps(buffered) {\n    if (buffered.length < 2) {\n      return videojs.createTimeRanges();\n    }\n\n    var ranges = [];\n\n    for (var i = 1; i < buffered.length; i++) {\n      var start = buffered.end(i - 1);\n      var end = buffered.start(i);\n      ranges.push([start, end]);\n    }\n\n    return videojs.createTimeRanges(ranges);\n  };\n  /**\n   * Calculate the intersection of two TimeRanges\n   *\n   * @param {TimeRanges} bufferA\n   * @param {TimeRanges} bufferB\n   * @return {TimeRanges} The interesection of `bufferA` with `bufferB`\n   */\n\n\n  var bufferIntersection = function bufferIntersection(bufferA, bufferB) {\n    var start = null;\n    var end = null;\n    var arity = 0;\n    var extents = [];\n    var ranges = [];\n\n    if (!bufferA || !bufferA.length || !bufferB || !bufferB.length) {\n      return videojs.createTimeRange();\n    } // Handle the case where we have both buffers and create an\n    // intersection of the two\n\n\n    var count = bufferA.length; // A) Gather up all start and end times\n\n    while (count--) {\n      extents.push({\n        time: bufferA.start(count),\n        type: 'start'\n      });\n      extents.push({\n        time: bufferA.end(count),\n        type: 'end'\n      });\n    }\n\n    count = bufferB.length;\n\n    while (count--) {\n      extents.push({\n        time: bufferB.start(count),\n        type: 'start'\n      });\n      extents.push({\n        time: bufferB.end(count),\n        type: 'end'\n      });\n    } // B) Sort them by time\n\n\n    extents.sort(function (a, b) {\n      return a.time - b.time;\n    }); // C) Go along one by one incrementing arity for start and decrementing\n    //    arity for ends\n\n    for (count = 0; count < extents.length; count++) {\n      if (extents[count].type === 'start') {\n        arity++; // D) If arity is ever incremented to 2 we are entering an\n        //    overlapping range\n\n        if (arity === 2) {\n          start = extents[count].time;\n        }\n      } else if (extents[count].type === 'end') {\n        arity--; // E) If arity is ever decremented to 1 we leaving an\n        //    overlapping range\n\n        if (arity === 1) {\n          end = extents[count].time;\n        }\n      } // F) Record overlapping ranges\n\n\n      if (start !== null && end !== null) {\n        ranges.push([start, end]);\n        start = null;\n        end = null;\n      }\n    }\n\n    return videojs.createTimeRanges(ranges);\n  };\n  /**\n   * Gets a human readable string for a TimeRange\n   *\n   * @param {TimeRange} range\n   * @return {string} a human readable string\n   */\n\n\n  var printableRange = function printableRange(range) {\n    var strArr = [];\n\n    if (!range || !range.length) {\n      return '';\n    }\n\n    for (var i = 0; i < range.length; i++) {\n      strArr.push(range.start(i) + ' => ' + range.end(i));\n    }\n\n    return strArr.join(', ');\n  };\n  /**\n   * Calculates the amount of time left in seconds until the player hits the end of the\n   * buffer and causes a rebuffer\n   *\n   * @param {TimeRange} buffered\n   *        The state of the buffer\n   * @param {Numnber} currentTime\n   *        The current time of the player\n   * @param {number} playbackRate\n   *        The current playback rate of the player. Defaults to 1.\n   * @return {number}\n   *         Time until the player has to start rebuffering in seconds.\n   * @function timeUntilRebuffer\n   */\n\n\n  var timeUntilRebuffer = function timeUntilRebuffer(buffered, currentTime, playbackRate) {\n    if (playbackRate === void 0) {\n      playbackRate = 1;\n    }\n\n    var bufferedEnd = buffered.length ? buffered.end(buffered.length - 1) : 0;\n    return (bufferedEnd - currentTime) / playbackRate;\n  };\n  /**\n   * Converts a TimeRanges object into an array representation\n   *\n   * @param {TimeRanges} timeRanges\n   * @return {Array}\n   */\n\n\n  var timeRangesToArray = function timeRangesToArray(timeRanges) {\n    var timeRangesList = [];\n\n    for (var i = 0; i < timeRanges.length; i++) {\n      timeRangesList.push({\n        start: timeRanges.start(i),\n        end: timeRanges.end(i)\n      });\n    }\n\n    return timeRangesList;\n  };\n  /**\n   * Determines if two time range objects are different.\n   *\n   * @param {TimeRange} a\n   *        the first time range object to check\n   *\n   * @param {TimeRange} b\n   *        the second time range object to check\n   *\n   * @return {Boolean}\n   *         Whether the time range objects differ\n   */\n\n\n  var isRangeDifferent = function isRangeDifferent(a, b) {\n    // same object\n    if (a === b) {\n      return false;\n    } // one or the other is undefined\n\n\n    if (!a && b || !b && a) {\n      return true;\n    } // length is different\n\n\n    if (a.length !== b.length) {\n      return true;\n    } // see if any start/end pair is different\n\n\n    for (var i = 0; i < a.length; i++) {\n      if (a.start(i) !== b.start(i) || a.end(i) !== b.end(i)) {\n        return true;\n      }\n    } // if the length and every pair is the same\n    // this is the same time range\n\n\n    return false;\n  };\n\n  var lastBufferedEnd = function lastBufferedEnd(a) {\n    if (!a || !a.length || !a.end) {\n      return;\n    }\n\n    return a.end(a.length - 1);\n  };\n  /**\n   * A utility function to add up the amount of time in a timeRange\n   * after a specified startTime.\n   * ie:[[0, 10], [20, 40], [50, 60]] with a startTime 0\n   *     would return 40 as there are 40s seconds after 0 in the timeRange\n   *\n   * @param {TimeRange} range\n   *        The range to check against\n   * @param {number} startTime\n   *        The time in the time range that you should start counting from\n   *\n   * @return {number}\n   *          The number of seconds in the buffer passed the specified time.\n   */\n\n\n  var timeAheadOf = function timeAheadOf(range, startTime) {\n    var time = 0;\n\n    if (!range || !range.length) {\n      return time;\n    }\n\n    for (var i = 0; i < range.length; i++) {\n      var start = range.start(i);\n      var end = range.end(i); // startTime is after this range entirely\n\n      if (startTime > end) {\n        continue;\n      } // startTime is within this range\n\n\n      if (startTime > start && startTime <= end) {\n        time += end - startTime;\n        continue;\n      } // startTime is before this range.\n\n\n      time += end - start;\n    }\n\n    return time;\n  };\n  /**\n   * @file playlist.js\n   *\n   * Playlist related utilities.\n   */\n\n\n  var createTimeRange = videojs.createTimeRange;\n  /**\n   * Get the duration of a segment, with special cases for\n   * llhls segments that do not have a duration yet.\n   *\n   * @param {Object} playlist\n   *        the playlist that the segment belongs to.\n   * @param {Object} segment\n   *        the segment to get a duration for.\n   *\n   * @return {number}\n   *          the segment duration\n   */\n\n  var segmentDurationWithParts = function segmentDurationWithParts(playlist, segment) {\n    // if this isn't a preload segment\n    // then we will have a segment duration that is accurate.\n    if (!segment.preload) {\n      return segment.duration;\n    } // otherwise we have to add up parts and preload hints\n    // to get an up to date duration.\n\n\n    var result = 0;\n    (segment.parts || []).forEach(function (p) {\n      result += p.duration;\n    }); // for preload hints we have to use partTargetDuration\n    // as they won't even have a duration yet.\n\n    (segment.preloadHints || []).forEach(function (p) {\n      if (p.type === 'PART') {\n        result += playlist.partTargetDuration;\n      }\n    });\n    return result;\n  };\n  /**\n   * A function to get a combined list of parts and segments with durations\n   * and indexes.\n   *\n   * @param {Playlist} playlist the playlist to get the list for.\n   *\n   * @return {Array} The part/segment list.\n   */\n\n\n  var getPartsAndSegments = function getPartsAndSegments(playlist) {\n    return (playlist.segments || []).reduce(function (acc, segment, si) {\n      if (segment.parts) {\n        segment.parts.forEach(function (part, pi) {\n          acc.push({\n            duration: part.duration,\n            segmentIndex: si,\n            partIndex: pi,\n            part: part,\n            segment: segment\n          });\n        });\n      } else {\n        acc.push({\n          duration: segment.duration,\n          segmentIndex: si,\n          partIndex: null,\n          segment: segment,\n          part: null\n        });\n      }\n\n      return acc;\n    }, []);\n  };\n\n  var getLastParts = function getLastParts(media) {\n    var lastSegment = media.segments && media.segments.length && media.segments[media.segments.length - 1];\n    return lastSegment && lastSegment.parts || [];\n  };\n\n  var getKnownPartCount = function getKnownPartCount(_ref) {\n    var preloadSegment = _ref.preloadSegment;\n\n    if (!preloadSegment) {\n      return;\n    }\n\n    var parts = preloadSegment.parts,\n        preloadHints = preloadSegment.preloadHints;\n    var partCount = (preloadHints || []).reduce(function (count, hint) {\n      return count + (hint.type === 'PART' ? 1 : 0);\n    }, 0);\n    partCount += parts && parts.length ? parts.length : 0;\n    return partCount;\n  };\n  /**\n   * Get the number of seconds to delay from the end of a\n   * live playlist.\n   *\n   * @param {Playlist} master the master playlist\n   * @param {Playlist} media the media playlist\n   * @return {number} the hold back in seconds.\n   */\n\n\n  var liveEdgeDelay = function liveEdgeDelay(master, media) {\n    if (media.endList) {\n      return 0;\n    } // dash suggestedPresentationDelay trumps everything\n\n\n    if (master && master.suggestedPresentationDelay) {\n      return master.suggestedPresentationDelay;\n    }\n\n    var hasParts = getLastParts(media).length > 0; // look for \"part\" delays from ll-hls first\n\n    if (hasParts && media.serverControl && media.serverControl.partHoldBack) {\n      return media.serverControl.partHoldBack;\n    } else if (hasParts && media.partTargetDuration) {\n      return media.partTargetDuration * 3; // finally look for full segment delays\n    } else if (media.serverControl && media.serverControl.holdBack) {\n      return media.serverControl.holdBack;\n    } else if (media.targetDuration) {\n      return media.targetDuration * 3;\n    }\n\n    return 0;\n  };\n  /**\n   * walk backward until we find a duration we can use\n   * or return a failure\n   *\n   * @param {Playlist} playlist the playlist to walk through\n   * @param {Number} endSequence the mediaSequence to stop walking on\n   */\n\n\n  var backwardDuration = function backwardDuration(playlist, endSequence) {\n    var result = 0;\n    var i = endSequence - playlist.mediaSequence; // if a start time is available for segment immediately following\n    // the interval, use it\n\n    var segment = playlist.segments[i]; // Walk backward until we find the latest segment with timeline\n    // information that is earlier than endSequence\n\n    if (segment) {\n      if (typeof segment.start !== 'undefined') {\n        return {\n          result: segment.start,\n          precise: true\n        };\n      }\n\n      if (typeof segment.end !== 'undefined') {\n        return {\n          result: segment.end - segment.duration,\n          precise: true\n        };\n      }\n    }\n\n    while (i--) {\n      segment = playlist.segments[i];\n\n      if (typeof segment.end !== 'undefined') {\n        return {\n          result: result + segment.end,\n          precise: true\n        };\n      }\n\n      result += segmentDurationWithParts(playlist, segment);\n\n      if (typeof segment.start !== 'undefined') {\n        return {\n          result: result + segment.start,\n          precise: true\n        };\n      }\n    }\n\n    return {\n      result: result,\n      precise: false\n    };\n  };\n  /**\n   * walk forward until we find a duration we can use\n   * or return a failure\n   *\n   * @param {Playlist} playlist the playlist to walk through\n   * @param {number} endSequence the mediaSequence to stop walking on\n   */\n\n\n  var forwardDuration = function forwardDuration(playlist, endSequence) {\n    var result = 0;\n    var segment;\n    var i = endSequence - playlist.mediaSequence; // Walk forward until we find the earliest segment with timeline\n    // information\n\n    for (; i < playlist.segments.length; i++) {\n      segment = playlist.segments[i];\n\n      if (typeof segment.start !== 'undefined') {\n        return {\n          result: segment.start - result,\n          precise: true\n        };\n      }\n\n      result += segmentDurationWithParts(playlist, segment);\n\n      if (typeof segment.end !== 'undefined') {\n        return {\n          result: segment.end - result,\n          precise: true\n        };\n      }\n    } // indicate we didn't find a useful duration estimate\n\n\n    return {\n      result: -1,\n      precise: false\n    };\n  };\n  /**\n    * Calculate the media duration from the segments associated with a\n    * playlist. The duration of a subinterval of the available segments\n    * may be calculated by specifying an end index.\n    *\n    * @param {Object} playlist a media playlist object\n    * @param {number=} endSequence an exclusive upper boundary\n    * for the playlist.  Defaults to playlist length.\n    * @param {number} expired the amount of time that has dropped\n    * off the front of the playlist in a live scenario\n    * @return {number} the duration between the first available segment\n    * and end index.\n    */\n\n\n  var intervalDuration = function intervalDuration(playlist, endSequence, expired) {\n    if (typeof endSequence === 'undefined') {\n      endSequence = playlist.mediaSequence + playlist.segments.length;\n    }\n\n    if (endSequence < playlist.mediaSequence) {\n      return 0;\n    } // do a backward walk to estimate the duration\n\n\n    var backward = backwardDuration(playlist, endSequence);\n\n    if (backward.precise) {\n      // if we were able to base our duration estimate on timing\n      // information provided directly from the Media Source, return\n      // it\n      return backward.result;\n    } // walk forward to see if a precise duration estimate can be made\n    // that way\n\n\n    var forward = forwardDuration(playlist, endSequence);\n\n    if (forward.precise) {\n      // we found a segment that has been buffered and so it's\n      // position is known precisely\n      return forward.result;\n    } // return the less-precise, playlist-based duration estimate\n\n\n    return backward.result + expired;\n  };\n  /**\n    * Calculates the duration of a playlist. If a start and end index\n    * are specified, the duration will be for the subset of the media\n    * timeline between those two indices. The total duration for live\n    * playlists is always Infinity.\n    *\n    * @param {Object} playlist a media playlist object\n    * @param {number=} endSequence an exclusive upper\n    * boundary for the playlist. Defaults to the playlist media\n    * sequence number plus its length.\n    * @param {number=} expired the amount of time that has\n    * dropped off the front of the playlist in a live scenario\n    * @return {number} the duration between the start index and end\n    * index.\n    */\n\n\n  var duration = function duration(playlist, endSequence, expired) {\n    if (!playlist) {\n      return 0;\n    }\n\n    if (typeof expired !== 'number') {\n      expired = 0;\n    } // if a slice of the total duration is not requested, use\n    // playlist-level duration indicators when they're present\n\n\n    if (typeof endSequence === 'undefined') {\n      // if present, use the duration specified in the playlist\n      if (playlist.totalDuration) {\n        return playlist.totalDuration;\n      } // duration should be Infinity for live playlists\n\n\n      if (!playlist.endList) {\n        return window.Infinity;\n      }\n    } // calculate the total duration based on the segment durations\n\n\n    return intervalDuration(playlist, endSequence, expired);\n  };\n  /**\n    * Calculate the time between two indexes in the current playlist\n    * neight the start- nor the end-index need to be within the current\n    * playlist in which case, the targetDuration of the playlist is used\n    * to approximate the durations of the segments\n    *\n    * @param {Array} options.durationList list to iterate over for durations.\n    * @param {number} options.defaultDuration duration to use for elements before or after the durationList\n    * @param {number} options.startIndex partsAndSegments index to start\n    * @param {number} options.endIndex partsAndSegments index to end.\n    * @return {number} the number of seconds between startIndex and endIndex\n    */\n\n\n  var sumDurations = function sumDurations(_ref2) {\n    var defaultDuration = _ref2.defaultDuration,\n        durationList = _ref2.durationList,\n        startIndex = _ref2.startIndex,\n        endIndex = _ref2.endIndex;\n    var durations = 0;\n\n    if (startIndex > endIndex) {\n      var _ref3 = [endIndex, startIndex];\n      startIndex = _ref3[0];\n      endIndex = _ref3[1];\n    }\n\n    if (startIndex < 0) {\n      for (var i = startIndex; i < Math.min(0, endIndex); i++) {\n        durations += defaultDuration;\n      }\n\n      startIndex = 0;\n    }\n\n    for (var _i = startIndex; _i < endIndex; _i++) {\n      durations += durationList[_i].duration;\n    }\n\n    return durations;\n  };\n  /**\n   * Calculates the playlist end time\n   *\n   * @param {Object} playlist a media playlist object\n   * @param {number=} expired the amount of time that has\n   *                  dropped off the front of the playlist in a live scenario\n   * @param {boolean|false} useSafeLiveEnd a boolean value indicating whether or not the\n   *                        playlist end calculation should consider the safe live end\n   *                        (truncate the playlist end by three segments). This is normally\n   *                        used for calculating the end of the playlist's seekable range.\n   *                        This takes into account the value of liveEdgePadding.\n   *                        Setting liveEdgePadding to 0 is equivalent to setting this to false.\n   * @param {number} liveEdgePadding a number indicating how far from the end of the playlist we should be in seconds.\n   *                 If this is provided, it is used in the safe live end calculation.\n   *                 Setting useSafeLiveEnd=false or liveEdgePadding=0 are equivalent.\n   *                 Corresponds to suggestedPresentationDelay in DASH manifests.\n   * @return {number} the end time of playlist\n   * @function playlistEnd\n   */\n\n\n  var playlistEnd = function playlistEnd(playlist, expired, useSafeLiveEnd, liveEdgePadding) {\n    if (!playlist || !playlist.segments) {\n      return null;\n    }\n\n    if (playlist.endList) {\n      return duration(playlist);\n    }\n\n    if (expired === null) {\n      return null;\n    }\n\n    expired = expired || 0;\n    var lastSegmentEndTime = intervalDuration(playlist, playlist.mediaSequence + playlist.segments.length, expired);\n\n    if (useSafeLiveEnd) {\n      liveEdgePadding = typeof liveEdgePadding === 'number' ? liveEdgePadding : liveEdgeDelay(null, playlist);\n      lastSegmentEndTime -= liveEdgePadding;\n    } // don't return a time less than zero\n\n\n    return Math.max(0, lastSegmentEndTime);\n  };\n  /**\n    * Calculates the interval of time that is currently seekable in a\n    * playlist. The returned time ranges are relative to the earliest\n    * moment in the specified playlist that is still available. A full\n    * seekable implementation for live streams would need to offset\n    * these values by the duration of content that has expired from the\n    * stream.\n    *\n    * @param {Object} playlist a media playlist object\n    * dropped off the front of the playlist in a live scenario\n    * @param {number=} expired the amount of time that has\n    * dropped off the front of the playlist in a live scenario\n    * @param {number} liveEdgePadding how far from the end of the playlist we should be in seconds.\n    *        Corresponds to suggestedPresentationDelay in DASH manifests.\n    * @return {TimeRanges} the periods of time that are valid targets\n    * for seeking\n    */\n\n\n  var seekable = function seekable(playlist, expired, liveEdgePadding) {\n    var useSafeLiveEnd = true;\n    var seekableStart = expired || 0;\n    var seekableEnd = playlistEnd(playlist, expired, useSafeLiveEnd, liveEdgePadding);\n\n    if (seekableEnd === null) {\n      return createTimeRange();\n    }\n\n    return createTimeRange(seekableStart, seekableEnd);\n  };\n  /**\n   * Determine the index and estimated starting time of the segment that\n   * contains a specified playback position in a media playlist.\n   *\n   * @param {Object} options.playlist the media playlist to query\n   * @param {number} options.currentTime The number of seconds since the earliest\n   * possible position to determine the containing segment for\n   * @param {number} options.startTime the time when the segment/part starts\n   * @param {number} options.startingSegmentIndex the segment index to start looking at.\n   * @param {number?} [options.startingPartIndex] the part index to look at within the segment.\n   *\n   * @return {Object} an object with partIndex, segmentIndex, and startTime.\n   */\n\n\n  var getMediaInfoForTime = function getMediaInfoForTime(_ref4) {\n    var playlist = _ref4.playlist,\n        currentTime = _ref4.currentTime,\n        startingSegmentIndex = _ref4.startingSegmentIndex,\n        startingPartIndex = _ref4.startingPartIndex,\n        startTime = _ref4.startTime,\n        experimentalExactManifestTimings = _ref4.experimentalExactManifestTimings;\n    var time = currentTime - startTime;\n    var partsAndSegments = getPartsAndSegments(playlist);\n    var startIndex = 0;\n\n    for (var i = 0; i < partsAndSegments.length; i++) {\n      var partAndSegment = partsAndSegments[i];\n\n      if (startingSegmentIndex !== partAndSegment.segmentIndex) {\n        continue;\n      } // skip this if part index does not match.\n\n\n      if (typeof startingPartIndex === 'number' && typeof partAndSegment.partIndex === 'number' && startingPartIndex !== partAndSegment.partIndex) {\n        continue;\n      }\n\n      startIndex = i;\n      break;\n    }\n\n    if (time < 0) {\n      // Walk backward from startIndex in the playlist, adding durations\n      // until we find a segment that contains `time` and return it\n      if (startIndex > 0) {\n        for (var _i2 = startIndex - 1; _i2 >= 0; _i2--) {\n          var _partAndSegment = partsAndSegments[_i2];\n          time += _partAndSegment.duration;\n\n          if (experimentalExactManifestTimings) {\n            if (time < 0) {\n              continue;\n            }\n          } else if (time + TIME_FUDGE_FACTOR <= 0) {\n            continue;\n          }\n\n          return {\n            partIndex: _partAndSegment.partIndex,\n            segmentIndex: _partAndSegment.segmentIndex,\n            startTime: startTime - sumDurations({\n              defaultDuration: playlist.targetDuration,\n              durationList: partsAndSegments,\n              startIndex: startIndex,\n              endIndex: _i2\n            })\n          };\n        }\n      } // We were unable to find a good segment within the playlist\n      // so select the first segment\n\n\n      return {\n        partIndex: partsAndSegments[0] && partsAndSegments[0].partIndex || null,\n        segmentIndex: partsAndSegments[0] && partsAndSegments[0].segmentIndex || 0,\n        startTime: currentTime\n      };\n    } // When startIndex is negative, we first walk forward to first segment\n    // adding target durations. If we \"run out of time\" before getting to\n    // the first segment, return the first segment\n\n\n    if (startIndex < 0) {\n      for (var _i3 = startIndex; _i3 < 0; _i3++) {\n        time -= playlist.targetDuration;\n\n        if (time < 0) {\n          return {\n            partIndex: partsAndSegments[0] && partsAndSegments[0].partIndex || null,\n            segmentIndex: partsAndSegments[0] && partsAndSegments[0].segmentIndex || 0,\n            startTime: currentTime\n          };\n        }\n      }\n\n      startIndex = 0;\n    } // Walk forward from startIndex in the playlist, subtracting durations\n    // until we find a segment that contains `time` and return it\n\n\n    for (var _i4 = startIndex; _i4 < partsAndSegments.length; _i4++) {\n      var _partAndSegment2 = partsAndSegments[_i4];\n      time -= _partAndSegment2.duration;\n\n      if (experimentalExactManifestTimings) {\n        if (time > 0) {\n          continue;\n        }\n      } else if (time - TIME_FUDGE_FACTOR >= 0) {\n        continue;\n      }\n\n      return {\n        partIndex: _partAndSegment2.partIndex,\n        segmentIndex: _partAndSegment2.segmentIndex,\n        startTime: startTime + sumDurations({\n          defaultDuration: playlist.targetDuration,\n          durationList: partsAndSegments,\n          startIndex: startIndex,\n          endIndex: _i4\n        })\n      };\n    } // We are out of possible candidates so load the last one...\n\n\n    return {\n      segmentIndex: partsAndSegments[partsAndSegments.length - 1].segmentIndex,\n      partIndex: partsAndSegments[partsAndSegments.length - 1].partIndex,\n      startTime: currentTime\n    };\n  };\n  /**\n   * Check whether the playlist is blacklisted or not.\n   *\n   * @param {Object} playlist the media playlist object\n   * @return {boolean} whether the playlist is blacklisted or not\n   * @function isBlacklisted\n   */\n\n\n  var isBlacklisted = function isBlacklisted(playlist) {\n    return playlist.excludeUntil && playlist.excludeUntil > Date.now();\n  };\n  /**\n   * Check whether the playlist is compatible with current playback configuration or has\n   * been blacklisted permanently for being incompatible.\n   *\n   * @param {Object} playlist the media playlist object\n   * @return {boolean} whether the playlist is incompatible or not\n   * @function isIncompatible\n   */\n\n\n  var isIncompatible = function isIncompatible(playlist) {\n    return playlist.excludeUntil && playlist.excludeUntil === Infinity;\n  };\n  /**\n   * Check whether the playlist is enabled or not.\n   *\n   * @param {Object} playlist the media playlist object\n   * @return {boolean} whether the playlist is enabled or not\n   * @function isEnabled\n   */\n\n\n  var isEnabled = function isEnabled(playlist) {\n    var blacklisted = isBlacklisted(playlist);\n    return !playlist.disabled && !blacklisted;\n  };\n  /**\n   * Check whether the playlist has been manually disabled through the representations api.\n   *\n   * @param {Object} playlist the media playlist object\n   * @return {boolean} whether the playlist is disabled manually or not\n   * @function isDisabled\n   */\n\n\n  var isDisabled = function isDisabled(playlist) {\n    return playlist.disabled;\n  };\n  /**\n   * Returns whether the current playlist is an AES encrypted HLS stream\n   *\n   * @return {boolean} true if it's an AES encrypted HLS stream\n   */\n\n\n  var isAes = function isAes(media) {\n    for (var i = 0; i < media.segments.length; i++) {\n      if (media.segments[i].key) {\n        return true;\n      }\n    }\n\n    return false;\n  };\n  /**\n   * Checks if the playlist has a value for the specified attribute\n   *\n   * @param {string} attr\n   *        Attribute to check for\n   * @param {Object} playlist\n   *        The media playlist object\n   * @return {boolean}\n   *         Whether the playlist contains a value for the attribute or not\n   * @function hasAttribute\n   */\n\n\n  var hasAttribute = function hasAttribute(attr, playlist) {\n    return playlist.attributes && playlist.attributes[attr];\n  };\n  /**\n   * Estimates the time required to complete a segment download from the specified playlist\n   *\n   * @param {number} segmentDuration\n   *        Duration of requested segment\n   * @param {number} bandwidth\n   *        Current measured bandwidth of the player\n   * @param {Object} playlist\n   *        The media playlist object\n   * @param {number=} bytesReceived\n   *        Number of bytes already received for the request. Defaults to 0\n   * @return {number|NaN}\n   *         The estimated time to request the segment. NaN if bandwidth information for\n   *         the given playlist is unavailable\n   * @function estimateSegmentRequestTime\n   */\n\n\n  var estimateSegmentRequestTime = function estimateSegmentRequestTime(segmentDuration, bandwidth, playlist, bytesReceived) {\n    if (bytesReceived === void 0) {\n      bytesReceived = 0;\n    }\n\n    if (!hasAttribute('BANDWIDTH', playlist)) {\n      return NaN;\n    }\n\n    var size = segmentDuration * playlist.attributes.BANDWIDTH;\n    return (size - bytesReceived * 8) / bandwidth;\n  };\n  /*\n   * Returns whether the current playlist is the lowest rendition\n   *\n   * @return {Boolean} true if on lowest rendition\n   */\n\n\n  var isLowestEnabledRendition = function isLowestEnabledRendition(master, media) {\n    if (master.playlists.length === 1) {\n      return true;\n    }\n\n    var currentBandwidth = media.attributes.BANDWIDTH || Number.MAX_VALUE;\n    return master.playlists.filter(function (playlist) {\n      if (!isEnabled(playlist)) {\n        return false;\n      }\n\n      return (playlist.attributes.BANDWIDTH || 0) < currentBandwidth;\n    }).length === 0;\n  };\n\n  var playlistMatch = function playlistMatch(a, b) {\n    // both playlits are null\n    // or only one playlist is non-null\n    // no match\n    if (!a && !b || !a && b || a && !b) {\n      return false;\n    } // playlist objects are the same, match\n\n\n    if (a === b) {\n      return true;\n    } // first try to use id as it should be the most\n    // accurate\n\n\n    if (a.id && b.id && a.id === b.id) {\n      return true;\n    } // next try to use reslovedUri as it should be the\n    // second most accurate.\n\n\n    if (a.resolvedUri && b.resolvedUri && a.resolvedUri === b.resolvedUri) {\n      return true;\n    } // finally try to use uri as it should be accurate\n    // but might miss a few cases for relative uris\n\n\n    if (a.uri && b.uri && a.uri === b.uri) {\n      return true;\n    }\n\n    return false;\n  };\n\n  var someAudioVariant = function someAudioVariant(master, callback) {\n    var AUDIO = master && master.mediaGroups && master.mediaGroups.AUDIO || {};\n    var found = false;\n\n    for (var groupName in AUDIO) {\n      for (var label in AUDIO[groupName]) {\n        found = callback(AUDIO[groupName][label]);\n\n        if (found) {\n          break;\n        }\n      }\n\n      if (found) {\n        break;\n      }\n    }\n\n    return !!found;\n  };\n\n  var isAudioOnly = function isAudioOnly(master) {\n    // we are audio only if we have no main playlists but do\n    // have media group playlists.\n    if (!master || !master.playlists || !master.playlists.length) {\n      // without audio variants or playlists this\n      // is not an audio only master.\n      var found = someAudioVariant(master, function (variant) {\n        return variant.playlists && variant.playlists.length || variant.uri;\n      });\n      return found;\n    } // if every playlist has only an audio codec it is audio only\n\n\n    var _loop = function _loop(i) {\n      var playlist = master.playlists[i];\n      var CODECS = playlist.attributes && playlist.attributes.CODECS; // all codecs are audio, this is an audio playlist.\n\n      if (CODECS && CODECS.split(',').every(function (c) {\n        return isAudioCodec(c);\n      })) {\n        return \"continue\";\n      } // playlist is in an audio group it is audio only\n\n\n      var found = someAudioVariant(master, function (variant) {\n        return playlistMatch(playlist, variant);\n      });\n\n      if (found) {\n        return \"continue\";\n      } // if we make it here this playlist isn't audio and we\n      // are not audio only\n\n\n      return {\n        v: false\n      };\n    };\n\n    for (var i = 0; i < master.playlists.length; i++) {\n      var _ret = _loop(i);\n\n      if (_ret === \"continue\") continue;\n      if (typeof _ret === \"object\") return _ret.v;\n    } // if we make it past every playlist without returning, then\n    // this is an audio only playlist.\n\n\n    return true;\n  }; // exports\n\n\n  var Playlist = {\n    liveEdgeDelay: liveEdgeDelay,\n    duration: duration,\n    seekable: seekable,\n    getMediaInfoForTime: getMediaInfoForTime,\n    isEnabled: isEnabled,\n    isDisabled: isDisabled,\n    isBlacklisted: isBlacklisted,\n    isIncompatible: isIncompatible,\n    playlistEnd: playlistEnd,\n    isAes: isAes,\n    hasAttribute: hasAttribute,\n    estimateSegmentRequestTime: estimateSegmentRequestTime,\n    isLowestEnabledRendition: isLowestEnabledRendition,\n    isAudioOnly: isAudioOnly,\n    playlistMatch: playlistMatch,\n    segmentDurationWithParts: segmentDurationWithParts\n  };\n  var log = videojs.log;\n\n  var createPlaylistID = function createPlaylistID(index, uri) {\n    return index + \"-\" + uri;\n  };\n  /**\n   * Parses a given m3u8 playlist\n   *\n   * @param {Function} [onwarn]\n   *        a function to call when the parser triggers a warning event.\n   * @param {Function} [oninfo]\n   *        a function to call when the parser triggers an info event.\n   * @param {string} manifestString\n   *        The downloaded manifest string\n   * @param {Object[]} [customTagParsers]\n   *        An array of custom tag parsers for the m3u8-parser instance\n   * @param {Object[]} [customTagMappers]\n   *        An array of custom tag mappers for the m3u8-parser instance\n   * @param {boolean} [experimentalLLHLS=false]\n   *        Whether to keep ll-hls features in the manifest after parsing.\n   * @return {Object}\n   *         The manifest object\n   */\n\n\n  var parseManifest = function parseManifest(_ref) {\n    var onwarn = _ref.onwarn,\n        oninfo = _ref.oninfo,\n        manifestString = _ref.manifestString,\n        _ref$customTagParsers = _ref.customTagParsers,\n        customTagParsers = _ref$customTagParsers === void 0 ? [] : _ref$customTagParsers,\n        _ref$customTagMappers = _ref.customTagMappers,\n        customTagMappers = _ref$customTagMappers === void 0 ? [] : _ref$customTagMappers,\n        experimentalLLHLS = _ref.experimentalLLHLS;\n    var parser = new Parser();\n\n    if (onwarn) {\n      parser.on('warn', onwarn);\n    }\n\n    if (oninfo) {\n      parser.on('info', oninfo);\n    }\n\n    customTagParsers.forEach(function (customParser) {\n      return parser.addParser(customParser);\n    });\n    customTagMappers.forEach(function (mapper) {\n      return parser.addTagMapper(mapper);\n    });\n    parser.push(manifestString);\n    parser.end();\n    var manifest = parser.manifest; // remove llhls features from the parsed manifest\n    // if we don't want llhls support.\n\n    if (!experimentalLLHLS) {\n      ['preloadSegment', 'skip', 'serverControl', 'renditionReports', 'partInf', 'partTargetDuration'].forEach(function (k) {\n        if (manifest.hasOwnProperty(k)) {\n          delete manifest[k];\n        }\n      });\n\n      if (manifest.segments) {\n        manifest.segments.forEach(function (segment) {\n          ['parts', 'preloadHints'].forEach(function (k) {\n            if (segment.hasOwnProperty(k)) {\n              delete segment[k];\n            }\n          });\n        });\n      }\n    }\n\n    if (!manifest.targetDuration) {\n      var targetDuration = 10;\n\n      if (manifest.segments && manifest.segments.length) {\n        targetDuration = manifest.segments.reduce(function (acc, s) {\n          return Math.max(acc, s.duration);\n        }, 0);\n      }\n\n      if (onwarn) {\n        onwarn(\"manifest has no targetDuration defaulting to \" + targetDuration);\n      }\n\n      manifest.targetDuration = targetDuration;\n    }\n\n    var parts = getLastParts(manifest);\n\n    if (parts.length && !manifest.partTargetDuration) {\n      var partTargetDuration = parts.reduce(function (acc, p) {\n        return Math.max(acc, p.duration);\n      }, 0);\n\n      if (onwarn) {\n        onwarn(\"manifest has no partTargetDuration defaulting to \" + partTargetDuration);\n        log.error('LL-HLS manifest has parts but lacks required #EXT-X-PART-INF:PART-TARGET value. See https://datatracker.ietf.org/doc/html/draft-pantos-hls-rfc8216bis-09#section-4.4.3.7. Playback is not guaranteed.');\n      }\n\n      manifest.partTargetDuration = partTargetDuration;\n    }\n\n    return manifest;\n  };\n  /**\n   * Loops through all supported media groups in master and calls the provided\n   * callback for each group\n   *\n   * @param {Object} master\n   *        The parsed master manifest object\n   * @param {Function} callback\n   *        Callback to call for each media group\n   */\n\n\n  var forEachMediaGroup = function forEachMediaGroup(master, callback) {\n    if (!master.mediaGroups) {\n      return;\n    }\n\n    ['AUDIO', 'SUBTITLES'].forEach(function (mediaType) {\n      if (!master.mediaGroups[mediaType]) {\n        return;\n      }\n\n      for (var groupKey in master.mediaGroups[mediaType]) {\n        for (var labelKey in master.mediaGroups[mediaType][groupKey]) {\n          var mediaProperties = master.mediaGroups[mediaType][groupKey][labelKey];\n          callback(mediaProperties, mediaType, groupKey, labelKey);\n        }\n      }\n    });\n  };\n  /**\n   * Adds properties and attributes to the playlist to keep consistent functionality for\n   * playlists throughout VHS.\n   *\n   * @param {Object} config\n   *        Arguments object\n   * @param {Object} config.playlist\n   *        The media playlist\n   * @param {string} [config.uri]\n   *        The uri to the media playlist (if media playlist is not from within a master\n   *        playlist)\n   * @param {string} id\n   *        ID to use for the playlist\n   */\n\n\n  var setupMediaPlaylist = function setupMediaPlaylist(_ref2) {\n    var playlist = _ref2.playlist,\n        uri = _ref2.uri,\n        id = _ref2.id;\n    playlist.id = id;\n    playlist.playlistErrors_ = 0;\n\n    if (uri) {\n      // For media playlists, m3u8-parser does not have access to a URI, as HLS media\n      // playlists do not contain their own source URI, but one is needed for consistency in\n      // VHS.\n      playlist.uri = uri;\n    } // For HLS master playlists, even though certain attributes MUST be defined, the\n    // stream may still be played without them.\n    // For HLS media playlists, m3u8-parser does not attach an attributes object to the\n    // manifest.\n    //\n    // To avoid undefined reference errors through the project, and make the code easier\n    // to write/read, add an empty attributes object for these cases.\n\n\n    playlist.attributes = playlist.attributes || {};\n  };\n  /**\n   * Adds ID, resolvedUri, and attributes properties to each playlist of the master, where\n   * necessary. In addition, creates playlist IDs for each playlist and adds playlist ID to\n   * playlist references to the playlists array.\n   *\n   * @param {Object} master\n   *        The master playlist\n   */\n\n\n  var setupMediaPlaylists = function setupMediaPlaylists(master) {\n    var i = master.playlists.length;\n\n    while (i--) {\n      var playlist = master.playlists[i];\n      setupMediaPlaylist({\n        playlist: playlist,\n        id: createPlaylistID(i, playlist.uri)\n      });\n      playlist.resolvedUri = resolveUrl(master.uri, playlist.uri);\n      master.playlists[playlist.id] = playlist; // URI reference added for backwards compatibility\n\n      master.playlists[playlist.uri] = playlist; // Although the spec states an #EXT-X-STREAM-INF tag MUST have a BANDWIDTH attribute,\n      // the stream can be played without it. Although an attributes property may have been\n      // added to the playlist to prevent undefined references, issue a warning to fix the\n      // manifest.\n\n      if (!playlist.attributes.BANDWIDTH) {\n        log.warn('Invalid playlist STREAM-INF detected. Missing BANDWIDTH attribute.');\n      }\n    }\n  };\n  /**\n   * Adds resolvedUri properties to each media group.\n   *\n   * @param {Object} master\n   *        The master playlist\n   */\n\n\n  var resolveMediaGroupUris = function resolveMediaGroupUris(master) {\n    forEachMediaGroup(master, function (properties) {\n      if (properties.uri) {\n        properties.resolvedUri = resolveUrl(master.uri, properties.uri);\n      }\n    });\n  };\n  /**\n   * Creates a master playlist wrapper to insert a sole media playlist into.\n   *\n   * @param {Object} media\n   *        Media playlist\n   * @param {string} uri\n   *        The media URI\n   *\n   * @return {Object}\n   *         Master playlist\n   */\n\n\n  var masterForMedia = function masterForMedia(media, uri) {\n    var id = createPlaylistID(0, uri);\n    var master = {\n      mediaGroups: {\n        'AUDIO': {},\n        'VIDEO': {},\n        'CLOSED-CAPTIONS': {},\n        'SUBTITLES': {}\n      },\n      uri: window.location.href,\n      resolvedUri: window.location.href,\n      playlists: [{\n        uri: uri,\n        id: id,\n        resolvedUri: uri,\n        // m3u8-parser does not attach an attributes property to media playlists so make\n        // sure that the property is attached to avoid undefined reference errors\n        attributes: {}\n      }]\n    }; // set up ID reference\n\n    master.playlists[id] = master.playlists[0]; // URI reference added for backwards compatibility\n\n    master.playlists[uri] = master.playlists[0];\n    return master;\n  };\n  /**\n   * Does an in-place update of the master manifest to add updated playlist URI references\n   * as well as other properties needed by VHS that aren't included by the parser.\n   *\n   * @param {Object} master\n   *        Master manifest object\n   * @param {string} uri\n   *        The source URI\n   */\n\n\n  var addPropertiesToMaster = function addPropertiesToMaster(master, uri) {\n    master.uri = uri;\n\n    for (var i = 0; i < master.playlists.length; i++) {\n      if (!master.playlists[i].uri) {\n        // Set up phony URIs for the playlists since playlists are referenced by their URIs\n        // throughout VHS, but some formats (e.g., DASH) don't have external URIs\n        // TODO: consider adding dummy URIs in mpd-parser\n        var phonyUri = \"placeholder-uri-\" + i;\n        master.playlists[i].uri = phonyUri;\n      }\n    }\n\n    var audioOnlyMaster = isAudioOnly(master);\n    forEachMediaGroup(master, function (properties, mediaType, groupKey, labelKey) {\n      var groupId = \"placeholder-uri-\" + mediaType + \"-\" + groupKey + \"-\" + labelKey; // add a playlist array under properties\n\n      if (!properties.playlists || !properties.playlists.length) {\n        // If the manifest is audio only and this media group does not have a uri, check\n        // if the media group is located in the main list of playlists. If it is, don't add\n        // placeholder properties as it shouldn't be considered an alternate audio track.\n        if (audioOnlyMaster && mediaType === 'AUDIO' && !properties.uri) {\n          for (var _i = 0; _i < master.playlists.length; _i++) {\n            var p = master.playlists[_i];\n\n            if (p.attributes && p.attributes.AUDIO && p.attributes.AUDIO === groupKey) {\n              return;\n            }\n          }\n        }\n\n        properties.playlists = [_extends_1({}, properties)];\n      }\n\n      properties.playlists.forEach(function (p, i) {\n        var id = createPlaylistID(i, groupId);\n\n        if (p.uri) {\n          p.resolvedUri = p.resolvedUri || resolveUrl(master.uri, p.uri);\n        } else {\n          // DEPRECATED, this has been added to prevent a breaking change.\n          // previously we only ever had a single media group playlist, so\n          // we mark the first playlist uri without prepending the index as we used to\n          // ideally we would do all of the playlists the same way.\n          p.uri = i === 0 ? groupId : id; // don't resolve a placeholder uri to an absolute url, just use\n          // the placeholder again\n\n          p.resolvedUri = p.uri;\n        }\n\n        p.id = p.id || id; // add an empty attributes object, all playlists are\n        // expected to have this.\n\n        p.attributes = p.attributes || {}; // setup ID and URI references (URI for backwards compatibility)\n\n        master.playlists[p.id] = p;\n        master.playlists[p.uri] = p;\n      });\n    });\n    setupMediaPlaylists(master);\n    resolveMediaGroupUris(master);\n  };\n\n  var mergeOptions$2 = videojs.mergeOptions,\n      EventTarget$1 = videojs.EventTarget;\n\n  var addLLHLSQueryDirectives = function addLLHLSQueryDirectives(uri, media) {\n    if (media.endList || !media.serverControl) {\n      return uri;\n    }\n\n    var parameters = {};\n\n    if (media.serverControl.canBlockReload) {\n      var preloadSegment = media.preloadSegment; // next msn is a zero based value, length is not.\n\n      var nextMSN = media.mediaSequence + media.segments.length; // If preload segment has parts then it is likely\n      // that we are going to request a part of that preload segment.\n      // the logic below is used to determine that.\n\n      if (preloadSegment) {\n        var parts = preloadSegment.parts || []; // _HLS_part is a zero based index\n\n        var nextPart = getKnownPartCount(media) - 1; // if nextPart is > -1 and not equal to just the\n        // length of parts, then we know we had part preload hints\n        // and we need to add the _HLS_part= query\n\n        if (nextPart > -1 && nextPart !== parts.length - 1) {\n          // add existing parts to our preload hints\n          // eslint-disable-next-line\n          parameters._HLS_part = nextPart;\n        } // this if statement makes sure that we request the msn\n        // of the preload segment if:\n        // 1. the preload segment had parts (and was not yet a full segment)\n        //    but was added to our segments array\n        // 2. the preload segment had preload hints for parts that are not in\n        //    the manifest yet.\n        // in all other cases we want the segment after the preload segment\n        // which will be given by using media.segments.length because it is 1 based\n        // rather than 0 based.\n\n\n        if (nextPart > -1 || parts.length) {\n          nextMSN--;\n        }\n      } // add _HLS_msn= in front of any _HLS_part query\n      // eslint-disable-next-line\n\n\n      parameters._HLS_msn = nextMSN;\n    }\n\n    if (media.serverControl && media.serverControl.canSkipUntil) {\n      // add _HLS_skip= infront of all other queries.\n      // eslint-disable-next-line\n      parameters._HLS_skip = media.serverControl.canSkipDateranges ? 'v2' : 'YES';\n    }\n\n    if (Object.keys(parameters).length) {\n      var parsedUri = new window.URL(uri);\n      ['_HLS_skip', '_HLS_msn', '_HLS_part'].forEach(function (name) {\n        if (!parameters.hasOwnProperty(name)) {\n          return;\n        }\n\n        parsedUri.searchParams.set(name, parameters[name]);\n      });\n      uri = parsedUri.toString();\n    }\n\n    return uri;\n  };\n  /**\n   * Returns a new segment object with properties and\n   * the parts array merged.\n   *\n   * @param {Object} a the old segment\n   * @param {Object} b the new segment\n   *\n   * @return {Object} the merged segment\n   */\n\n\n  var updateSegment = function updateSegment(a, b) {\n    if (!a) {\n      return b;\n    }\n\n    var result = mergeOptions$2(a, b); // if only the old segment has preload hints\n    // and the new one does not, remove preload hints.\n\n    if (a.preloadHints && !b.preloadHints) {\n      delete result.preloadHints;\n    } // if only the old segment has parts\n    // then the parts are no longer valid\n\n\n    if (a.parts && !b.parts) {\n      delete result.parts; // if both segments have parts\n      // copy part propeties from the old segment\n      // to the new one.\n    } else if (a.parts && b.parts) {\n      for (var i = 0; i < b.parts.length; i++) {\n        if (a.parts && a.parts[i]) {\n          result.parts[i] = mergeOptions$2(a.parts[i], b.parts[i]);\n        }\n      }\n    } // set skipped to false for segments that have\n    // have had information merged from the old segment.\n\n\n    if (!a.skipped && b.skipped) {\n      result.skipped = false;\n    } // set preload to false for segments that have\n    // had information added in the new segment.\n\n\n    if (a.preload && !b.preload) {\n      result.preload = false;\n    }\n\n    return result;\n  };\n  /**\n   * Returns a new array of segments that is the result of merging\n   * properties from an older list of segments onto an updated\n   * list. No properties on the updated playlist will be ovewritten.\n   *\n   * @param {Array} original the outdated list of segments\n   * @param {Array} update the updated list of segments\n   * @param {number=} offset the index of the first update\n   * segment in the original segment list. For non-live playlists,\n   * this should always be zero and does not need to be\n   * specified. For live playlists, it should be the difference\n   * between the media sequence numbers in the original and updated\n   * playlists.\n   * @return {Array} a list of merged segment objects\n   */\n\n\n  var updateSegments = function updateSegments(original, update, offset) {\n    var oldSegments = original.slice();\n    var newSegments = update.slice();\n    offset = offset || 0;\n    var result = [];\n    var currentMap;\n\n    for (var newIndex = 0; newIndex < newSegments.length; newIndex++) {\n      var oldSegment = oldSegments[newIndex + offset];\n      var newSegment = newSegments[newIndex];\n\n      if (oldSegment) {\n        currentMap = oldSegment.map || currentMap;\n        result.push(updateSegment(oldSegment, newSegment));\n      } else {\n        // carry over map to new segment if it is missing\n        if (currentMap && !newSegment.map) {\n          newSegment.map = currentMap;\n        }\n\n        result.push(newSegment);\n      }\n    }\n\n    return result;\n  };\n\n  var resolveSegmentUris = function resolveSegmentUris(segment, baseUri) {\n    // preloadSegment will not have a uri at all\n    // as the segment isn't actually in the manifest yet, only parts\n    if (!segment.resolvedUri && segment.uri) {\n      segment.resolvedUri = resolveUrl(baseUri, segment.uri);\n    }\n\n    if (segment.key && !segment.key.resolvedUri) {\n      segment.key.resolvedUri = resolveUrl(baseUri, segment.key.uri);\n    }\n\n    if (segment.map && !segment.map.resolvedUri) {\n      segment.map.resolvedUri = resolveUrl(baseUri, segment.map.uri);\n    }\n\n    if (segment.map && segment.map.key && !segment.map.key.resolvedUri) {\n      segment.map.key.resolvedUri = resolveUrl(baseUri, segment.map.key.uri);\n    }\n\n    if (segment.parts && segment.parts.length) {\n      segment.parts.forEach(function (p) {\n        if (p.resolvedUri) {\n          return;\n        }\n\n        p.resolvedUri = resolveUrl(baseUri, p.uri);\n      });\n    }\n\n    if (segment.preloadHints && segment.preloadHints.length) {\n      segment.preloadHints.forEach(function (p) {\n        if (p.resolvedUri) {\n          return;\n        }\n\n        p.resolvedUri = resolveUrl(baseUri, p.uri);\n      });\n    }\n  };\n\n  var getAllSegments = function getAllSegments(media) {\n    var segments = media.segments || [];\n    var preloadSegment = media.preloadSegment; // a preloadSegment with only preloadHints is not currently\n    // a usable segment, only include a preloadSegment that has\n    // parts.\n\n    if (preloadSegment && preloadSegment.parts && preloadSegment.parts.length) {\n      // if preloadHints has a MAP that means that the\n      // init segment is going to change. We cannot use any of the parts\n      // from this preload segment.\n      if (preloadSegment.preloadHints) {\n        for (var i = 0; i < preloadSegment.preloadHints.length; i++) {\n          if (preloadSegment.preloadHints[i].type === 'MAP') {\n            return segments;\n          }\n        }\n      } // set the duration for our preload segment to target duration.\n\n\n      preloadSegment.duration = media.targetDuration;\n      preloadSegment.preload = true;\n      segments.push(preloadSegment);\n    }\n\n    return segments;\n  }; // consider the playlist unchanged if the playlist object is the same or\n  // the number of segments is equal, the media sequence number is unchanged,\n  // and this playlist hasn't become the end of the playlist\n\n\n  var isPlaylistUnchanged = function isPlaylistUnchanged(a, b) {\n    return a === b || a.segments && b.segments && a.segments.length === b.segments.length && a.endList === b.endList && a.mediaSequence === b.mediaSequence && a.preloadSegment === b.preloadSegment;\n  };\n  /**\n    * Returns a new master playlist that is the result of merging an\n    * updated media playlist into the original version. If the\n    * updated media playlist does not match any of the playlist\n    * entries in the original master playlist, null is returned.\n    *\n    * @param {Object} master a parsed master M3U8 object\n    * @param {Object} media a parsed media M3U8 object\n    * @return {Object} a new object that represents the original\n    * master playlist with the updated media playlist merged in, or\n    * null if the merge produced no change.\n    */\n\n\n  var updateMaster$1 = function updateMaster(master, newMedia, unchangedCheck) {\n    if (unchangedCheck === void 0) {\n      unchangedCheck = isPlaylistUnchanged;\n    }\n\n    var result = mergeOptions$2(master, {});\n    var oldMedia = result.playlists[newMedia.id];\n\n    if (!oldMedia) {\n      return null;\n    }\n\n    if (unchangedCheck(oldMedia, newMedia)) {\n      return null;\n    }\n\n    newMedia.segments = getAllSegments(newMedia);\n    var mergedPlaylist = mergeOptions$2(oldMedia, newMedia); // always use the new media's preload segment\n\n    if (mergedPlaylist.preloadSegment && !newMedia.preloadSegment) {\n      delete mergedPlaylist.preloadSegment;\n    } // if the update could overlap existing segment information, merge the two segment lists\n\n\n    if (oldMedia.segments) {\n      if (newMedia.skip) {\n        newMedia.segments = newMedia.segments || []; // add back in objects for skipped segments, so that we merge\n        // old properties into the new segments\n\n        for (var i = 0; i < newMedia.skip.skippedSegments; i++) {\n          newMedia.segments.unshift({\n            skipped: true\n          });\n        }\n      }\n\n      mergedPlaylist.segments = updateSegments(oldMedia.segments, newMedia.segments, newMedia.mediaSequence - oldMedia.mediaSequence);\n    } // resolve any segment URIs to prevent us from having to do it later\n\n\n    mergedPlaylist.segments.forEach(function (segment) {\n      resolveSegmentUris(segment, mergedPlaylist.resolvedUri);\n    }); // TODO Right now in the playlists array there are two references to each playlist, one\n    // that is referenced by index, and one by URI. The index reference may no longer be\n    // necessary.\n\n    for (var _i = 0; _i < result.playlists.length; _i++) {\n      if (result.playlists[_i].id === newMedia.id) {\n        result.playlists[_i] = mergedPlaylist;\n      }\n    }\n\n    result.playlists[newMedia.id] = mergedPlaylist; // URI reference added for backwards compatibility\n\n    result.playlists[newMedia.uri] = mergedPlaylist; // update media group playlist references.\n\n    forEachMediaGroup(master, function (properties, mediaType, groupKey, labelKey) {\n      if (!properties.playlists) {\n        return;\n      }\n\n      for (var _i2 = 0; _i2 < properties.playlists.length; _i2++) {\n        if (newMedia.id === properties.playlists[_i2].id) {\n          properties.playlists[_i2] = mergedPlaylist;\n        }\n      }\n    });\n    return result;\n  };\n  /**\n   * Calculates the time to wait before refreshing a live playlist\n   *\n   * @param {Object} media\n   *        The current media\n   * @param {boolean} update\n   *        True if there were any updates from the last refresh, false otherwise\n   * @return {number}\n   *         The time in ms to wait before refreshing the live playlist\n   */\n\n\n  var refreshDelay = function refreshDelay(media, update) {\n    var segments = media.segments || [];\n    var lastSegment = segments[segments.length - 1];\n    var lastPart = lastSegment && lastSegment.parts && lastSegment.parts[lastSegment.parts.length - 1];\n    var lastDuration = lastPart && lastPart.duration || lastSegment && lastSegment.duration;\n\n    if (update && lastDuration) {\n      return lastDuration * 1000;\n    } // if the playlist is unchanged since the last reload or last segment duration\n    // cannot be determined, try again after half the target duration\n\n\n    return (media.partTargetDuration || media.targetDuration || 10) * 500;\n  };\n  /**\n   * Load a playlist from a remote location\n   *\n   * @class PlaylistLoader\n   * @extends Stream\n   * @param {string|Object} src url or object of manifest\n   * @param {boolean} withCredentials the withCredentials xhr option\n   * @class\n   */\n\n\n  var PlaylistLoader = /*#__PURE__*/function (_EventTarget) {\n    inheritsLoose(PlaylistLoader, _EventTarget);\n\n    function PlaylistLoader(src, vhs, options) {\n      var _this;\n\n      if (options === void 0) {\n        options = {};\n      }\n\n      _this = _EventTarget.call(this) || this;\n\n      if (!src) {\n        throw new Error('A non-empty playlist URL or object is required');\n      }\n\n      _this.logger_ = logger('PlaylistLoader');\n      var _options = options,\n          _options$withCredenti = _options.withCredentials,\n          withCredentials = _options$withCredenti === void 0 ? false : _options$withCredenti,\n          _options$handleManife = _options.handleManifestRedirects,\n          handleManifestRedirects = _options$handleManife === void 0 ? false : _options$handleManife;\n      _this.src = src;\n      _this.vhs_ = vhs;\n      _this.withCredentials = withCredentials;\n      _this.handleManifestRedirects = handleManifestRedirects;\n      var vhsOptions = vhs.options_;\n      _this.customTagParsers = vhsOptions && vhsOptions.customTagParsers || [];\n      _this.customTagMappers = vhsOptions && vhsOptions.customTagMappers || [];\n      _this.experimentalLLHLS = vhsOptions && vhsOptions.experimentalLLHLS || false; // force experimentalLLHLS for IE 11\n\n      if (videojs.browser.IE_VERSION) {\n        _this.experimentalLLHLS = false;\n      } // initialize the loader state\n\n\n      _this.state = 'HAVE_NOTHING'; // live playlist staleness timeout\n\n      _this.handleMediaupdatetimeout_ = _this.handleMediaupdatetimeout_.bind(assertThisInitialized(_this));\n\n      _this.on('mediaupdatetimeout', _this.handleMediaupdatetimeout_);\n\n      return _this;\n    }\n\n    var _proto = PlaylistLoader.prototype;\n\n    _proto.handleMediaupdatetimeout_ = function handleMediaupdatetimeout_() {\n      var _this2 = this;\n\n      if (this.state !== 'HAVE_METADATA') {\n        // only refresh the media playlist if no other activity is going on\n        return;\n      }\n\n      var media = this.media();\n      var uri = resolveUrl(this.master.uri, media.uri);\n\n      if (this.experimentalLLHLS) {\n        uri = addLLHLSQueryDirectives(uri, media);\n      }\n\n      this.state = 'HAVE_CURRENT_METADATA';\n      this.request = this.vhs_.xhr({\n        uri: uri,\n        withCredentials: this.withCredentials\n      }, function (error, req) {\n        // disposed\n        if (!_this2.request) {\n          return;\n        }\n\n        if (error) {\n          return _this2.playlistRequestError(_this2.request, _this2.media(), 'HAVE_METADATA');\n        }\n\n        _this2.haveMetadata({\n          playlistString: _this2.request.responseText,\n          url: _this2.media().uri,\n          id: _this2.media().id\n        });\n      });\n    };\n\n    _proto.playlistRequestError = function playlistRequestError(xhr, playlist, startingState) {\n      var uri = playlist.uri,\n          id = playlist.id; // any in-flight request is now finished\n\n      this.request = null;\n\n      if (startingState) {\n        this.state = startingState;\n      }\n\n      this.error = {\n        playlist: this.master.playlists[id],\n        status: xhr.status,\n        message: \"HLS playlist request error at URL: \" + uri + \".\",\n        responseText: xhr.responseText,\n        code: xhr.status >= 500 ? 4 : 2\n      };\n      this.trigger('error');\n    };\n\n    _proto.parseManifest_ = function parseManifest_(_ref) {\n      var _this3 = this;\n\n      var url = _ref.url,\n          manifestString = _ref.manifestString;\n      return parseManifest({\n        onwarn: function onwarn(_ref2) {\n          var message = _ref2.message;\n          return _this3.logger_(\"m3u8-parser warn for \" + url + \": \" + message);\n        },\n        oninfo: function oninfo(_ref3) {\n          var message = _ref3.message;\n          return _this3.logger_(\"m3u8-parser info for \" + url + \": \" + message);\n        },\n        manifestString: manifestString,\n        customTagParsers: this.customTagParsers,\n        customTagMappers: this.customTagMappers,\n        experimentalLLHLS: this.experimentalLLHLS\n      });\n    }\n    /**\n     * Update the playlist loader's state in response to a new or updated playlist.\n     *\n     * @param {string} [playlistString]\n     *        Playlist string (if playlistObject is not provided)\n     * @param {Object} [playlistObject]\n     *        Playlist object (if playlistString is not provided)\n     * @param {string} url\n     *        URL of playlist\n     * @param {string} id\n     *        ID to use for playlist\n     */\n    ;\n\n    _proto.haveMetadata = function haveMetadata(_ref4) {\n      var playlistString = _ref4.playlistString,\n          playlistObject = _ref4.playlistObject,\n          url = _ref4.url,\n          id = _ref4.id; // any in-flight request is now finished\n\n      this.request = null;\n      this.state = 'HAVE_METADATA';\n      var playlist = playlistObject || this.parseManifest_({\n        url: url,\n        manifestString: playlistString\n      });\n      playlist.lastRequest = Date.now();\n      setupMediaPlaylist({\n        playlist: playlist,\n        uri: url,\n        id: id\n      }); // merge this playlist into the master\n\n      var update = updateMaster$1(this.master, playlist);\n      this.targetDuration = playlist.partTargetDuration || playlist.targetDuration;\n      this.pendingMedia_ = null;\n\n      if (update) {\n        this.master = update;\n        this.media_ = this.master.playlists[id];\n      } else {\n        this.trigger('playlistunchanged');\n      }\n\n      this.updateMediaUpdateTimeout_(refreshDelay(this.media(), !!update));\n      this.trigger('loadedplaylist');\n    }\n    /**\n      * Abort any outstanding work and clean up.\n      */\n    ;\n\n    _proto.dispose = function dispose() {\n      this.trigger('dispose');\n      this.stopRequest();\n      window.clearTimeout(this.mediaUpdateTimeout);\n      window.clearTimeout(this.finalRenditionTimeout);\n      this.off();\n    };\n\n    _proto.stopRequest = function stopRequest() {\n      if (this.request) {\n        var oldRequest = this.request;\n        this.request = null;\n        oldRequest.onreadystatechange = null;\n        oldRequest.abort();\n      }\n    }\n    /**\n      * When called without any arguments, returns the currently\n      * active media playlist. When called with a single argument,\n      * triggers the playlist loader to asynchronously switch to the\n      * specified media playlist. Calling this method while the\n      * loader is in the HAVE_NOTHING causes an error to be emitted\n      * but otherwise has no effect.\n      *\n      * @param {Object=} playlist the parsed media playlist\n      * object to switch to\n      * @param {boolean=} shouldDelay whether we should delay the request by half target duration\n      *\n      * @return {Playlist} the current loaded media\n      */\n    ;\n\n    _proto.media = function media(playlist, shouldDelay) {\n      var _this4 = this; // getter\n\n\n      if (!playlist) {\n        return this.media_;\n      } // setter\n\n\n      if (this.state === 'HAVE_NOTHING') {\n        throw new Error('Cannot switch media playlist from ' + this.state);\n      } // find the playlist object if the target playlist has been\n      // specified by URI\n\n\n      if (typeof playlist === 'string') {\n        if (!this.master.playlists[playlist]) {\n          throw new Error('Unknown playlist URI: ' + playlist);\n        }\n\n        playlist = this.master.playlists[playlist];\n      }\n\n      window.clearTimeout(this.finalRenditionTimeout);\n\n      if (shouldDelay) {\n        var delay = (playlist.partTargetDuration || playlist.targetDuration) / 2 * 1000 || 5 * 1000;\n        this.finalRenditionTimeout = window.setTimeout(this.media.bind(this, playlist, false), delay);\n        return;\n      }\n\n      var startingState = this.state;\n      var mediaChange = !this.media_ || playlist.id !== this.media_.id;\n      var masterPlaylistRef = this.master.playlists[playlist.id]; // switch to fully loaded playlists immediately\n\n      if (masterPlaylistRef && masterPlaylistRef.endList || // handle the case of a playlist object (e.g., if using vhs-json with a resolved\n      // media playlist or, for the case of demuxed audio, a resolved audio media group)\n      playlist.endList && playlist.segments.length) {\n        // abort outstanding playlist requests\n        if (this.request) {\n          this.request.onreadystatechange = null;\n          this.request.abort();\n          this.request = null;\n        }\n\n        this.state = 'HAVE_METADATA';\n        this.media_ = playlist; // trigger media change if the active media has been updated\n\n        if (mediaChange) {\n          this.trigger('mediachanging');\n\n          if (startingState === 'HAVE_MASTER') {\n            // The initial playlist was a master manifest, and the first media selected was\n            // also provided (in the form of a resolved playlist object) as part of the\n            // source object (rather than just a URL). Therefore, since the media playlist\n            // doesn't need to be requested, loadedmetadata won't trigger as part of the\n            // normal flow, and needs an explicit trigger here.\n            this.trigger('loadedmetadata');\n          } else {\n            this.trigger('mediachange');\n          }\n        }\n\n        return;\n      } // We update/set the timeout here so that live playlists\n      // that are not a media change will \"start\" the loader as expected.\n      // We expect that this function will start the media update timeout\n      // cycle again. This also prevents a playlist switch failure from\n      // causing us to stall during live.\n\n\n      this.updateMediaUpdateTimeout_(refreshDelay(playlist, true)); // switching to the active playlist is a no-op\n\n      if (!mediaChange) {\n        return;\n      }\n\n      this.state = 'SWITCHING_MEDIA'; // there is already an outstanding playlist request\n\n      if (this.request) {\n        if (playlist.resolvedUri === this.request.url) {\n          // requesting to switch to the same playlist multiple times\n          // has no effect after the first\n          return;\n        }\n\n        this.request.onreadystatechange = null;\n        this.request.abort();\n        this.request = null;\n      } // request the new playlist\n\n\n      if (this.media_) {\n        this.trigger('mediachanging');\n      }\n\n      this.pendingMedia_ = playlist;\n      this.request = this.vhs_.xhr({\n        uri: playlist.resolvedUri,\n        withCredentials: this.withCredentials\n      }, function (error, req) {\n        // disposed\n        if (!_this4.request) {\n          return;\n        }\n\n        playlist.lastRequest = Date.now();\n        playlist.resolvedUri = resolveManifestRedirect(_this4.handleManifestRedirects, playlist.resolvedUri, req);\n\n        if (error) {\n          return _this4.playlistRequestError(_this4.request, playlist, startingState);\n        }\n\n        _this4.haveMetadata({\n          playlistString: req.responseText,\n          url: playlist.uri,\n          id: playlist.id\n        }); // fire loadedmetadata the first time a media playlist is loaded\n\n\n        if (startingState === 'HAVE_MASTER') {\n          _this4.trigger('loadedmetadata');\n        } else {\n          _this4.trigger('mediachange');\n        }\n      });\n    }\n    /**\n     * pause loading of the playlist\n     */\n    ;\n\n    _proto.pause = function pause() {\n      if (this.mediaUpdateTimeout) {\n        window.clearTimeout(this.mediaUpdateTimeout);\n        this.mediaUpdateTimeout = null;\n      }\n\n      this.stopRequest();\n\n      if (this.state === 'HAVE_NOTHING') {\n        // If we pause the loader before any data has been retrieved, its as if we never\n        // started, so reset to an unstarted state.\n        this.started = false;\n      } // Need to restore state now that no activity is happening\n\n\n      if (this.state === 'SWITCHING_MEDIA') {\n        // if the loader was in the process of switching media, it should either return to\n        // HAVE_MASTER or HAVE_METADATA depending on if the loader has loaded a media\n        // playlist yet. This is determined by the existence of loader.media_\n        if (this.media_) {\n          this.state = 'HAVE_METADATA';\n        } else {\n          this.state = 'HAVE_MASTER';\n        }\n      } else if (this.state === 'HAVE_CURRENT_METADATA') {\n        this.state = 'HAVE_METADATA';\n      }\n    }\n    /**\n     * start loading of the playlist\n     */\n    ;\n\n    _proto.load = function load(shouldDelay) {\n      var _this5 = this;\n\n      if (this.mediaUpdateTimeout) {\n        window.clearTimeout(this.mediaUpdateTimeout);\n        this.mediaUpdateTimeout = null;\n      }\n\n      var media = this.media();\n\n      if (shouldDelay) {\n        var delay = media ? (media.partTargetDuration || media.targetDuration) / 2 * 1000 : 5 * 1000;\n        this.mediaUpdateTimeout = window.setTimeout(function () {\n          _this5.mediaUpdateTimeout = null;\n\n          _this5.load();\n        }, delay);\n        return;\n      }\n\n      if (!this.started) {\n        this.start();\n        return;\n      }\n\n      if (media && !media.endList) {\n        this.trigger('mediaupdatetimeout');\n      } else {\n        this.trigger('loadedplaylist');\n      }\n    };\n\n    _proto.updateMediaUpdateTimeout_ = function updateMediaUpdateTimeout_(delay) {\n      var _this6 = this;\n\n      if (this.mediaUpdateTimeout) {\n        window.clearTimeout(this.mediaUpdateTimeout);\n        this.mediaUpdateTimeout = null;\n      } // we only have use mediaupdatetimeout for live playlists.\n\n\n      if (!this.media() || this.media().endList) {\n        return;\n      }\n\n      this.mediaUpdateTimeout = window.setTimeout(function () {\n        _this6.mediaUpdateTimeout = null;\n\n        _this6.trigger('mediaupdatetimeout');\n\n        _this6.updateMediaUpdateTimeout_(delay);\n      }, delay);\n    }\n    /**\n     * start loading of the playlist\n     */\n    ;\n\n    _proto.start = function start() {\n      var _this7 = this;\n\n      this.started = true;\n\n      if (typeof this.src === 'object') {\n        // in the case of an entirely constructed manifest object (meaning there's no actual\n        // manifest on a server), default the uri to the page's href\n        if (!this.src.uri) {\n          this.src.uri = window.location.href;\n        } // resolvedUri is added on internally after the initial request. Since there's no\n        // request for pre-resolved manifests, add on resolvedUri here.\n\n\n        this.src.resolvedUri = this.src.uri; // Since a manifest object was passed in as the source (instead of a URL), the first\n        // request can be skipped (since the top level of the manifest, at a minimum, is\n        // already available as a parsed manifest object). However, if the manifest object\n        // represents a master playlist, some media playlists may need to be resolved before\n        // the starting segment list is available. Therefore, go directly to setup of the\n        // initial playlist, and let the normal flow continue from there.\n        //\n        // Note that the call to setup is asynchronous, as other sections of VHS may assume\n        // that the first request is asynchronous.\n\n        setTimeout(function () {\n          _this7.setupInitialPlaylist(_this7.src);\n        }, 0);\n        return;\n      } // request the specified URL\n\n\n      this.request = this.vhs_.xhr({\n        uri: this.src,\n        withCredentials: this.withCredentials\n      }, function (error, req) {\n        // disposed\n        if (!_this7.request) {\n          return;\n        } // clear the loader's request reference\n\n\n        _this7.request = null;\n\n        if (error) {\n          _this7.error = {\n            status: req.status,\n            message: \"HLS playlist request error at URL: \" + _this7.src + \".\",\n            responseText: req.responseText,\n            // MEDIA_ERR_NETWORK\n            code: 2\n          };\n\n          if (_this7.state === 'HAVE_NOTHING') {\n            _this7.started = false;\n          }\n\n          return _this7.trigger('error');\n        }\n\n        _this7.src = resolveManifestRedirect(_this7.handleManifestRedirects, _this7.src, req);\n\n        var manifest = _this7.parseManifest_({\n          manifestString: req.responseText,\n          url: _this7.src\n        });\n\n        _this7.setupInitialPlaylist(manifest);\n      });\n    };\n\n    _proto.srcUri = function srcUri() {\n      return typeof this.src === 'string' ? this.src : this.src.uri;\n    }\n    /**\n     * Given a manifest object that's either a master or media playlist, trigger the proper\n     * events and set the state of the playlist loader.\n     *\n     * If the manifest object represents a master playlist, `loadedplaylist` will be\n     * triggered to allow listeners to select a playlist. If none is selected, the loader\n     * will default to the first one in the playlists array.\n     *\n     * If the manifest object represents a media playlist, `loadedplaylist` will be\n     * triggered followed by `loadedmetadata`, as the only available playlist is loaded.\n     *\n     * In the case of a media playlist, a master playlist object wrapper with one playlist\n     * will be created so that all logic can handle playlists in the same fashion (as an\n     * assumed manifest object schema).\n     *\n     * @param {Object} manifest\n     *        The parsed manifest object\n     */\n    ;\n\n    _proto.setupInitialPlaylist = function setupInitialPlaylist(manifest) {\n      this.state = 'HAVE_MASTER';\n\n      if (manifest.playlists) {\n        this.master = manifest;\n        addPropertiesToMaster(this.master, this.srcUri()); // If the initial master playlist has playlists wtih segments already resolved,\n        // then resolve URIs in advance, as they are usually done after a playlist request,\n        // which may not happen if the playlist is resolved.\n\n        manifest.playlists.forEach(function (playlist) {\n          playlist.segments = getAllSegments(playlist);\n          playlist.segments.forEach(function (segment) {\n            resolveSegmentUris(segment, playlist.resolvedUri);\n          });\n        });\n        this.trigger('loadedplaylist');\n\n        if (!this.request) {\n          // no media playlist was specifically selected so start\n          // from the first listed one\n          this.media(this.master.playlists[0]);\n        }\n\n        return;\n      } // In order to support media playlists passed in as vhs-json, the case where the uri\n      // is not provided as part of the manifest should be considered, and an appropriate\n      // default used.\n\n\n      var uri = this.srcUri() || window.location.href;\n      this.master = masterForMedia(manifest, uri);\n      this.haveMetadata({\n        playlistObject: manifest,\n        url: uri,\n        id: this.master.playlists[0].id\n      });\n      this.trigger('loadedmetadata');\n    };\n\n    return PlaylistLoader;\n  }(EventTarget$1);\n  /**\n   * @file xhr.js\n   */\n\n\n  var videojsXHR = videojs.xhr,\n      mergeOptions$1 = videojs.mergeOptions;\n\n  var callbackWrapper = function callbackWrapper(request, error, response, callback) {\n    var reqResponse = request.responseType === 'arraybuffer' ? request.response : request.responseText;\n\n    if (!error && reqResponse) {\n      request.responseTime = Date.now();\n      request.roundTripTime = request.responseTime - request.requestTime;\n      request.bytesReceived = reqResponse.byteLength || reqResponse.length;\n\n      if (!request.bandwidth) {\n        request.bandwidth = Math.floor(request.bytesReceived / request.roundTripTime * 8 * 1000);\n      }\n    }\n\n    if (response.headers) {\n      request.responseHeaders = response.headers;\n    } // videojs.xhr now uses a specific code on the error\n    // object to signal that a request has timed out instead\n    // of setting a boolean on the request object\n\n\n    if (error && error.code === 'ETIMEDOUT') {\n      request.timedout = true;\n    } // videojs.xhr no longer considers status codes outside of 200 and 0\n    // (for file uris) to be errors, but the old XHR did, so emulate that\n    // behavior. Status 206 may be used in response to byterange requests.\n\n\n    if (!error && !request.aborted && response.statusCode !== 200 && response.statusCode !== 206 && response.statusCode !== 0) {\n      error = new Error('XHR Failed with a response of: ' + (request && (reqResponse || request.responseText)));\n    }\n\n    callback(error, request);\n  };\n\n  var xhrFactory = function xhrFactory() {\n    var xhr = function XhrFunction(options, callback) {\n      // Add a default timeout\n      options = mergeOptions$1({\n        timeout: 45e3\n      }, options); // Allow an optional user-specified function to modify the option\n      // object before we construct the xhr request\n\n      var beforeRequest = XhrFunction.beforeRequest || videojs.Vhs.xhr.beforeRequest;\n\n      if (beforeRequest && typeof beforeRequest === 'function') {\n        var newOptions = beforeRequest(options);\n\n        if (newOptions) {\n          options = newOptions;\n        }\n      } // Use the standard videojs.xhr() method unless `videojs.Vhs.xhr` has been overriden\n      // TODO: switch back to videojs.Vhs.xhr.name === 'XhrFunction' when we drop IE11\n\n\n      var xhrMethod = videojs.Vhs.xhr.original === true ? videojsXHR : videojs.Vhs.xhr;\n      var request = xhrMethod(options, function (error, response) {\n        return callbackWrapper(request, error, response, callback);\n      });\n      var originalAbort = request.abort;\n\n      request.abort = function () {\n        request.aborted = true;\n        return originalAbort.apply(request, arguments);\n      };\n\n      request.uri = options.uri;\n      request.requestTime = Date.now();\n      return request;\n    };\n\n    xhr.original = true;\n    return xhr;\n  };\n  /**\n   * Turns segment byterange into a string suitable for use in\n   * HTTP Range requests\n   *\n   * @param {Object} byterange - an object with two values defining the start and end\n   *                             of a byte-range\n   */\n\n\n  var byterangeStr = function byterangeStr(byterange) {\n    // `byterangeEnd` is one less than `offset + length` because the HTTP range\n    // header uses inclusive ranges\n    var byterangeEnd;\n    var byterangeStart = byterange.offset;\n\n    if (typeof byterange.offset === 'bigint' || typeof byterange.length === 'bigint') {\n      byterangeEnd = window.BigInt(byterange.offset) + window.BigInt(byterange.length) - window.BigInt(1);\n    } else {\n      byterangeEnd = byterange.offset + byterange.length - 1;\n    }\n\n    return 'bytes=' + byterangeStart + '-' + byterangeEnd;\n  };\n  /**\n   * Defines headers for use in the xhr request for a particular segment.\n   *\n   * @param {Object} segment - a simplified copy of the segmentInfo object\n   *                           from SegmentLoader\n   */\n\n\n  var segmentXhrHeaders = function segmentXhrHeaders(segment) {\n    var headers = {};\n\n    if (segment.byterange) {\n      headers.Range = byterangeStr(segment.byterange);\n    }\n\n    return headers;\n  };\n  /**\n   * @file bin-utils.js\n   */\n\n  /**\n   * convert a TimeRange to text\n   *\n   * @param {TimeRange} range the timerange to use for conversion\n   * @param {number} i the iterator on the range to convert\n   * @return {string} the range in string format\n   */\n\n\n  var textRange = function textRange(range, i) {\n    return range.start(i) + '-' + range.end(i);\n  };\n  /**\n   * format a number as hex string\n   *\n   * @param {number} e The number\n   * @param {number} i the iterator\n   * @return {string} the hex formatted number as a string\n   */\n\n\n  var formatHexString = function formatHexString(e, i) {\n    var value = e.toString(16);\n    return '00'.substring(0, 2 - value.length) + value + (i % 2 ? ' ' : '');\n  };\n\n  var formatAsciiString = function formatAsciiString(e) {\n    if (e >= 0x20 && e < 0x7e) {\n      return String.fromCharCode(e);\n    }\n\n    return '.';\n  };\n  /**\n   * Creates an object for sending to a web worker modifying properties that are TypedArrays\n   * into a new object with seperated properties for the buffer, byteOffset, and byteLength.\n   *\n   * @param {Object} message\n   *        Object of properties and values to send to the web worker\n   * @return {Object}\n   *         Modified message with TypedArray values expanded\n   * @function createTransferableMessage\n   */\n\n\n  var createTransferableMessage = function createTransferableMessage(message) {\n    var transferable = {};\n    Object.keys(message).forEach(function (key) {\n      var value = message[key];\n\n      if (isArrayBufferView(value)) {\n        transferable[key] = {\n          bytes: value.buffer,\n          byteOffset: value.byteOffset,\n          byteLength: value.byteLength\n        };\n      } else {\n        transferable[key] = value;\n      }\n    });\n    return transferable;\n  };\n  /**\n   * Returns a unique string identifier for a media initialization\n   * segment.\n   *\n   * @param {Object} initSegment\n   *        the init segment object.\n   *\n   * @return {string} the generated init segment id\n   */\n\n\n  var initSegmentId = function initSegmentId(initSegment) {\n    var byterange = initSegment.byterange || {\n      length: Infinity,\n      offset: 0\n    };\n    return [byterange.length, byterange.offset, initSegment.resolvedUri].join(',');\n  };\n  /**\n   * Returns a unique string identifier for a media segment key.\n   *\n   * @param {Object} key the encryption key\n   * @return {string} the unique id for the media segment key.\n   */\n\n\n  var segmentKeyId = function segmentKeyId(key) {\n    return key.resolvedUri;\n  };\n  /**\n   * utils to help dump binary data to the console\n   *\n   * @param {Array|TypedArray} data\n   *        data to dump to a string\n   *\n   * @return {string} the data as a hex string.\n   */\n\n\n  var hexDump = function hexDump(data) {\n    var bytes = Array.prototype.slice.call(data);\n    var step = 16;\n    var result = '';\n    var hex;\n    var ascii;\n\n    for (var j = 0; j < bytes.length / step; j++) {\n      hex = bytes.slice(j * step, j * step + step).map(formatHexString).join('');\n      ascii = bytes.slice(j * step, j * step + step).map(formatAsciiString).join('');\n      result += hex + ' ' + ascii + '\\n';\n    }\n\n    return result;\n  };\n\n  var tagDump = function tagDump(_ref) {\n    var bytes = _ref.bytes;\n    return hexDump(bytes);\n  };\n\n  var textRanges = function textRanges(ranges) {\n    var result = '';\n    var i;\n\n    for (i = 0; i < ranges.length; i++) {\n      result += textRange(ranges, i) + ' ';\n    }\n\n    return result;\n  };\n\n  var utils = /*#__PURE__*/Object.freeze({\n    __proto__: null,\n    createTransferableMessage: createTransferableMessage,\n    initSegmentId: initSegmentId,\n    segmentKeyId: segmentKeyId,\n    hexDump: hexDump,\n    tagDump: tagDump,\n    textRanges: textRanges\n  }); // TODO handle fmp4 case where the timing info is accurate and doesn't involve transmux\n  // 25% was arbitrarily chosen, and may need to be refined over time.\n\n  var SEGMENT_END_FUDGE_PERCENT = 0.25;\n  /**\n   * Converts a player time (any time that can be gotten/set from player.currentTime(),\n   * e.g., any time within player.seekable().start(0) to player.seekable().end(0)) to a\n   * program time (any time referencing the real world (e.g., EXT-X-PROGRAM-DATE-TIME)).\n   *\n   * The containing segment is required as the EXT-X-PROGRAM-DATE-TIME serves as an \"anchor\n   * point\" (a point where we have a mapping from program time to player time, with player\n   * time being the post transmux start of the segment).\n   *\n   * For more details, see [this doc](../../docs/program-time-from-player-time.md).\n   *\n   * @param {number} playerTime the player time\n   * @param {Object} segment the segment which contains the player time\n   * @return {Date} program time\n   */\n\n  var playerTimeToProgramTime = function playerTimeToProgramTime(playerTime, segment) {\n    if (!segment.dateTimeObject) {\n      // Can't convert without an \"anchor point\" for the program time (i.e., a time that can\n      // be used to map the start of a segment with a real world time).\n      return null;\n    }\n\n    var transmuxerPrependedSeconds = segment.videoTimingInfo.transmuxerPrependedSeconds;\n    var transmuxedStart = segment.videoTimingInfo.transmuxedPresentationStart; // get the start of the content from before old content is prepended\n\n    var startOfSegment = transmuxedStart + transmuxerPrependedSeconds;\n    var offsetFromSegmentStart = playerTime - startOfSegment;\n    return new Date(segment.dateTimeObject.getTime() + offsetFromSegmentStart * 1000);\n  };\n\n  var originalSegmentVideoDuration = function originalSegmentVideoDuration(videoTimingInfo) {\n    return videoTimingInfo.transmuxedPresentationEnd - videoTimingInfo.transmuxedPresentationStart - videoTimingInfo.transmuxerPrependedSeconds;\n  };\n  /**\n   * Finds a segment that contains the time requested given as an ISO-8601 string. The\n   * returned segment might be an estimate or an accurate match.\n   *\n   * @param {string} programTime The ISO-8601 programTime to find a match for\n   * @param {Object} playlist A playlist object to search within\n   */\n\n\n  var findSegmentForProgramTime = function findSegmentForProgramTime(programTime, playlist) {\n    // Assumptions:\n    //  - verifyProgramDateTimeTags has already been run\n    //  - live streams have been started\n    var dateTimeObject;\n\n    try {\n      dateTimeObject = new Date(programTime);\n    } catch (e) {\n      return null;\n    }\n\n    if (!playlist || !playlist.segments || playlist.segments.length === 0) {\n      return null;\n    }\n\n    var segment = playlist.segments[0];\n\n    if (dateTimeObject < segment.dateTimeObject) {\n      // Requested time is before stream start.\n      return null;\n    }\n\n    for (var i = 0; i < playlist.segments.length - 1; i++) {\n      segment = playlist.segments[i];\n      var nextSegmentStart = playlist.segments[i + 1].dateTimeObject;\n\n      if (dateTimeObject < nextSegmentStart) {\n        break;\n      }\n    }\n\n    var lastSegment = playlist.segments[playlist.segments.length - 1];\n    var lastSegmentStart = lastSegment.dateTimeObject;\n    var lastSegmentDuration = lastSegment.videoTimingInfo ? originalSegmentVideoDuration(lastSegment.videoTimingInfo) : lastSegment.duration + lastSegment.duration * SEGMENT_END_FUDGE_PERCENT;\n    var lastSegmentEnd = new Date(lastSegmentStart.getTime() + lastSegmentDuration * 1000);\n\n    if (dateTimeObject > lastSegmentEnd) {\n      // Beyond the end of the stream, or our best guess of the end of the stream.\n      return null;\n    }\n\n    if (dateTimeObject > lastSegmentStart) {\n      segment = lastSegment;\n    }\n\n    return {\n      segment: segment,\n      estimatedStart: segment.videoTimingInfo ? segment.videoTimingInfo.transmuxedPresentationStart : Playlist.duration(playlist, playlist.mediaSequence + playlist.segments.indexOf(segment)),\n      // Although, given that all segments have accurate date time objects, the segment\n      // selected should be accurate, unless the video has been transmuxed at some point\n      // (determined by the presence of the videoTimingInfo object), the segment's \"player\n      // time\" (the start time in the player) can't be considered accurate.\n      type: segment.videoTimingInfo ? 'accurate' : 'estimate'\n    };\n  };\n  /**\n   * Finds a segment that contains the given player time(in seconds).\n   *\n   * @param {number} time The player time to find a match for\n   * @param {Object} playlist A playlist object to search within\n   */\n\n\n  var findSegmentForPlayerTime = function findSegmentForPlayerTime(time, playlist) {\n    // Assumptions:\n    // - there will always be a segment.duration\n    // - we can start from zero\n    // - segments are in time order\n    if (!playlist || !playlist.segments || playlist.segments.length === 0) {\n      return null;\n    }\n\n    var segmentEnd = 0;\n    var segment;\n\n    for (var i = 0; i < playlist.segments.length; i++) {\n      segment = playlist.segments[i]; // videoTimingInfo is set after the segment is downloaded and transmuxed, and\n      // should contain the most accurate values we have for the segment's player times.\n      //\n      // Use the accurate transmuxedPresentationEnd value if it is available, otherwise fall\n      // back to an estimate based on the manifest derived (inaccurate) segment.duration, to\n      // calculate an end value.\n\n      segmentEnd = segment.videoTimingInfo ? segment.videoTimingInfo.transmuxedPresentationEnd : segmentEnd + segment.duration;\n\n      if (time <= segmentEnd) {\n        break;\n      }\n    }\n\n    var lastSegment = playlist.segments[playlist.segments.length - 1];\n\n    if (lastSegment.videoTimingInfo && lastSegment.videoTimingInfo.transmuxedPresentationEnd < time) {\n      // The time requested is beyond the stream end.\n      return null;\n    }\n\n    if (time > segmentEnd) {\n      // The time is within or beyond the last segment.\n      //\n      // Check to see if the time is beyond a reasonable guess of the end of the stream.\n      if (time > segmentEnd + lastSegment.duration * SEGMENT_END_FUDGE_PERCENT) {\n        // Technically, because the duration value is only an estimate, the time may still\n        // exist in the last segment, however, there isn't enough information to make even\n        // a reasonable estimate.\n        return null;\n      }\n\n      segment = lastSegment;\n    }\n\n    return {\n      segment: segment,\n      estimatedStart: segment.videoTimingInfo ? segment.videoTimingInfo.transmuxedPresentationStart : segmentEnd - segment.duration,\n      // Because videoTimingInfo is only set after transmux, it is the only way to get\n      // accurate timing values.\n      type: segment.videoTimingInfo ? 'accurate' : 'estimate'\n    };\n  };\n  /**\n   * Gives the offset of the comparisonTimestamp from the programTime timestamp in seconds.\n   * If the offset returned is positive, the programTime occurs after the\n   * comparisonTimestamp.\n   * If the offset is negative, the programTime occurs before the comparisonTimestamp.\n   *\n   * @param {string} comparisonTimeStamp An ISO-8601 timestamp to compare against\n   * @param {string} programTime The programTime as an ISO-8601 string\n   * @return {number} offset\n   */\n\n\n  var getOffsetFromTimestamp = function getOffsetFromTimestamp(comparisonTimeStamp, programTime) {\n    var segmentDateTime;\n    var programDateTime;\n\n    try {\n      segmentDateTime = new Date(comparisonTimeStamp);\n      programDateTime = new Date(programTime);\n    } catch (e) {// TODO handle error\n    }\n\n    var segmentTimeEpoch = segmentDateTime.getTime();\n    var programTimeEpoch = programDateTime.getTime();\n    return (programTimeEpoch - segmentTimeEpoch) / 1000;\n  };\n  /**\n   * Checks that all segments in this playlist have programDateTime tags.\n   *\n   * @param {Object} playlist A playlist object\n   */\n\n\n  var verifyProgramDateTimeTags = function verifyProgramDateTimeTags(playlist) {\n    if (!playlist.segments || playlist.segments.length === 0) {\n      return false;\n    }\n\n    for (var i = 0; i < playlist.segments.length; i++) {\n      var segment = playlist.segments[i];\n\n      if (!segment.dateTimeObject) {\n        return false;\n      }\n    }\n\n    return true;\n  };\n  /**\n   * Returns the programTime of the media given a playlist and a playerTime.\n   * The playlist must have programDateTime tags for a programDateTime tag to be returned.\n   * If the segments containing the time requested have not been buffered yet, an estimate\n   * may be returned to the callback.\n   *\n   * @param {Object} args\n   * @param {Object} args.playlist A playlist object to search within\n   * @param {number} time A playerTime in seconds\n   * @param {Function} callback(err, programTime)\n   * @return {string} err.message A detailed error message\n   * @return {Object} programTime\n   * @return {number} programTime.mediaSeconds The streamTime in seconds\n   * @return {string} programTime.programDateTime The programTime as an ISO-8601 String\n   */\n\n\n  var getProgramTime = function getProgramTime(_ref) {\n    var playlist = _ref.playlist,\n        _ref$time = _ref.time,\n        time = _ref$time === void 0 ? undefined : _ref$time,\n        callback = _ref.callback;\n\n    if (!callback) {\n      throw new Error('getProgramTime: callback must be provided');\n    }\n\n    if (!playlist || time === undefined) {\n      return callback({\n        message: 'getProgramTime: playlist and time must be provided'\n      });\n    }\n\n    var matchedSegment = findSegmentForPlayerTime(time, playlist);\n\n    if (!matchedSegment) {\n      return callback({\n        message: 'valid programTime was not found'\n      });\n    }\n\n    if (matchedSegment.type === 'estimate') {\n      return callback({\n        message: 'Accurate programTime could not be determined.' + ' Please seek to e.seekTime and try again',\n        seekTime: matchedSegment.estimatedStart\n      });\n    }\n\n    var programTimeObject = {\n      mediaSeconds: time\n    };\n    var programTime = playerTimeToProgramTime(time, matchedSegment.segment);\n\n    if (programTime) {\n      programTimeObject.programDateTime = programTime.toISOString();\n    }\n\n    return callback(null, programTimeObject);\n  };\n  /**\n   * Seeks in the player to a time that matches the given programTime ISO-8601 string.\n   *\n   * @param {Object} args\n   * @param {string} args.programTime A programTime to seek to as an ISO-8601 String\n   * @param {Object} args.playlist A playlist to look within\n   * @param {number} args.retryCount The number of times to try for an accurate seek. Default is 2.\n   * @param {Function} args.seekTo A method to perform a seek\n   * @param {boolean} args.pauseAfterSeek Whether to end in a paused state after seeking. Default is true.\n   * @param {Object} args.tech The tech to seek on\n   * @param {Function} args.callback(err, newTime) A callback to return the new time to\n   * @return {string} err.message A detailed error message\n   * @return {number} newTime The exact time that was seeked to in seconds\n   */\n\n\n  var seekToProgramTime = function seekToProgramTime(_ref2) {\n    var programTime = _ref2.programTime,\n        playlist = _ref2.playlist,\n        _ref2$retryCount = _ref2.retryCount,\n        retryCount = _ref2$retryCount === void 0 ? 2 : _ref2$retryCount,\n        seekTo = _ref2.seekTo,\n        _ref2$pauseAfterSeek = _ref2.pauseAfterSeek,\n        pauseAfterSeek = _ref2$pauseAfterSeek === void 0 ? true : _ref2$pauseAfterSeek,\n        tech = _ref2.tech,\n        callback = _ref2.callback;\n\n    if (!callback) {\n      throw new Error('seekToProgramTime: callback must be provided');\n    }\n\n    if (typeof programTime === 'undefined' || !playlist || !seekTo) {\n      return callback({\n        message: 'seekToProgramTime: programTime, seekTo and playlist must be provided'\n      });\n    }\n\n    if (!playlist.endList && !tech.hasStarted_) {\n      return callback({\n        message: 'player must be playing a live stream to start buffering'\n      });\n    }\n\n    if (!verifyProgramDateTimeTags(playlist)) {\n      return callback({\n        message: 'programDateTime tags must be provided in the manifest ' + playlist.resolvedUri\n      });\n    }\n\n    var matchedSegment = findSegmentForProgramTime(programTime, playlist); // no match\n\n    if (!matchedSegment) {\n      return callback({\n        message: programTime + \" was not found in the stream\"\n      });\n    }\n\n    var segment = matchedSegment.segment;\n    var mediaOffset = getOffsetFromTimestamp(segment.dateTimeObject, programTime);\n\n    if (matchedSegment.type === 'estimate') {\n      // we've run out of retries\n      if (retryCount === 0) {\n        return callback({\n          message: programTime + \" is not buffered yet. Try again\"\n        });\n      }\n\n      seekTo(matchedSegment.estimatedStart + mediaOffset);\n      tech.one('seeked', function () {\n        seekToProgramTime({\n          programTime: programTime,\n          playlist: playlist,\n          retryCount: retryCount - 1,\n          seekTo: seekTo,\n          pauseAfterSeek: pauseAfterSeek,\n          tech: tech,\n          callback: callback\n        });\n      });\n      return;\n    } // Since the segment.start value is determined from the buffered end or ending time\n    // of the prior segment, the seekToTime doesn't need to account for any transmuxer\n    // modifications.\n\n\n    var seekToTime = segment.start + mediaOffset;\n\n    var seekedCallback = function seekedCallback() {\n      return callback(null, tech.currentTime());\n    }; // listen for seeked event\n\n\n    tech.one('seeked', seekedCallback); // pause before seeking as video.js will restore this state\n\n    if (pauseAfterSeek) {\n      tech.pause();\n    }\n\n    seekTo(seekToTime);\n  }; // which will only happen if the request is complete.\n\n\n  var callbackOnCompleted = function callbackOnCompleted(request, cb) {\n    if (request.readyState === 4) {\n      return cb();\n    }\n\n    return;\n  };\n\n  var containerRequest = function containerRequest(uri, xhr, cb) {\n    var bytes = [];\n    var id3Offset;\n    var finished = false;\n\n    var endRequestAndCallback = function endRequestAndCallback(err, req, type, _bytes) {\n      req.abort();\n      finished = true;\n      return cb(err, req, type, _bytes);\n    };\n\n    var progressListener = function progressListener(error, request) {\n      if (finished) {\n        return;\n      }\n\n      if (error) {\n        return endRequestAndCallback(error, request, '', bytes);\n      } // grap the new part of content that was just downloaded\n\n\n      var newPart = request.responseText.substring(bytes && bytes.byteLength || 0, request.responseText.length); // add that onto bytes\n\n      bytes = concatTypedArrays(bytes, stringToBytes(newPart, true));\n      id3Offset = id3Offset || getId3Offset(bytes); // we need at least 10 bytes to determine a type\n      // or we need at least two bytes after an id3Offset\n\n      if (bytes.length < 10 || id3Offset && bytes.length < id3Offset + 2) {\n        return callbackOnCompleted(request, function () {\n          return endRequestAndCallback(error, request, '', bytes);\n        });\n      }\n\n      var type = detectContainerForBytes(bytes); // if this looks like a ts segment but we don't have enough data\n      // to see the second sync byte, wait until we have enough data\n      // before declaring it ts\n\n      if (type === 'ts' && bytes.length < 188) {\n        return callbackOnCompleted(request, function () {\n          return endRequestAndCallback(error, request, '', bytes);\n        });\n      } // this may be an unsynced ts segment\n      // wait for 376 bytes before detecting no container\n\n\n      if (!type && bytes.length < 376) {\n        return callbackOnCompleted(request, function () {\n          return endRequestAndCallback(error, request, '', bytes);\n        });\n      }\n\n      return endRequestAndCallback(null, request, type, bytes);\n    };\n\n    var options = {\n      uri: uri,\n      beforeSend: function beforeSend(request) {\n        // this forces the browser to pass the bytes to us unprocessed\n        request.overrideMimeType('text/plain; charset=x-user-defined');\n        request.addEventListener('progress', function (_ref) {\n          _ref.total;\n          _ref.loaded;\n          return callbackWrapper(request, null, {\n            statusCode: request.status\n          }, progressListener);\n        });\n      }\n    };\n    var request = xhr(options, function (error, response) {\n      return callbackWrapper(request, error, response, progressListener);\n    });\n    return request;\n  };\n\n  var EventTarget = videojs.EventTarget,\n      mergeOptions = videojs.mergeOptions;\n\n  var dashPlaylistUnchanged = function dashPlaylistUnchanged(a, b) {\n    if (!isPlaylistUnchanged(a, b)) {\n      return false;\n    } // for dash the above check will often return true in scenarios where\n    // the playlist actually has changed because mediaSequence isn't a\n    // dash thing, and we often set it to 1. So if the playlists have the same amount\n    // of segments we return true.\n    // So for dash we need to make sure that the underlying segments are different.\n    // if sidx changed then the playlists are different.\n\n\n    if (a.sidx && b.sidx && (a.sidx.offset !== b.sidx.offset || a.sidx.length !== b.sidx.length)) {\n      return false;\n    } else if (!a.sidx && b.sidx || a.sidx && !b.sidx) {\n      return false;\n    } // one or the other does not have segments\n    // there was a change.\n\n\n    if (a.segments && !b.segments || !a.segments && b.segments) {\n      return false;\n    } // neither has segments nothing changed\n\n\n    if (!a.segments && !b.segments) {\n      return true;\n    } // check segments themselves\n\n\n    for (var i = 0; i < a.segments.length; i++) {\n      var aSegment = a.segments[i];\n      var bSegment = b.segments[i]; // if uris are different between segments there was a change\n\n      if (aSegment.uri !== bSegment.uri) {\n        return false;\n      } // neither segment has a byterange, there will be no byterange change.\n\n\n      if (!aSegment.byterange && !bSegment.byterange) {\n        continue;\n      }\n\n      var aByterange = aSegment.byterange;\n      var bByterange = bSegment.byterange; // if byterange only exists on one of the segments, there was a change.\n\n      if (aByterange && !bByterange || !aByterange && bByterange) {\n        return false;\n      } // if both segments have byterange with different offsets, there was a change.\n\n\n      if (aByterange.offset !== bByterange.offset || aByterange.length !== bByterange.length) {\n        return false;\n      }\n    } // if everything was the same with segments, this is the same playlist.\n\n\n    return true;\n  };\n  /**\n   * Parses the master XML string and updates playlist URI references.\n   *\n   * @param {Object} config\n   *        Object of arguments\n   * @param {string} config.masterXml\n   *        The mpd XML\n   * @param {string} config.srcUrl\n   *        The mpd URL\n   * @param {Date} config.clientOffset\n   *         A time difference between server and client\n   * @param {Object} config.sidxMapping\n   *        SIDX mappings for moof/mdat URIs and byte ranges\n   * @return {Object}\n   *         The parsed mpd manifest object\n   */\n\n\n  var parseMasterXml = function parseMasterXml(_ref) {\n    var masterXml = _ref.masterXml,\n        srcUrl = _ref.srcUrl,\n        clientOffset = _ref.clientOffset,\n        sidxMapping = _ref.sidxMapping,\n        previousManifest = _ref.previousManifest;\n    var manifest = parse(masterXml, {\n      manifestUri: srcUrl,\n      clientOffset: clientOffset,\n      sidxMapping: sidxMapping,\n      previousManifest: previousManifest\n    });\n    addPropertiesToMaster(manifest, srcUrl);\n    return manifest;\n  };\n  /**\n   * Returns a new master manifest that is the result of merging an updated master manifest\n   * into the original version.\n   *\n   * @param {Object} oldMaster\n   *        The old parsed mpd object\n   * @param {Object} newMaster\n   *        The updated parsed mpd object\n   * @return {Object}\n   *         A new object representing the original master manifest with the updated media\n   *         playlists merged in\n   */\n\n\n  var updateMaster = function updateMaster(oldMaster, newMaster, sidxMapping) {\n    var noChanges = true;\n    var update = mergeOptions(oldMaster, {\n      // These are top level properties that can be updated\n      duration: newMaster.duration,\n      minimumUpdatePeriod: newMaster.minimumUpdatePeriod,\n      timelineStarts: newMaster.timelineStarts\n    }); // First update the playlists in playlist list\n\n    for (var i = 0; i < newMaster.playlists.length; i++) {\n      var playlist = newMaster.playlists[i];\n\n      if (playlist.sidx) {\n        var sidxKey = generateSidxKey(playlist.sidx); // add sidx segments to the playlist if we have all the sidx info already\n\n        if (sidxMapping && sidxMapping[sidxKey] && sidxMapping[sidxKey].sidx) {\n          addSidxSegmentsToPlaylist$1(playlist, sidxMapping[sidxKey].sidx, playlist.sidx.resolvedUri);\n        }\n      }\n\n      var playlistUpdate = updateMaster$1(update, playlist, dashPlaylistUnchanged);\n\n      if (playlistUpdate) {\n        update = playlistUpdate;\n        noChanges = false;\n      }\n    } // Then update media group playlists\n\n\n    forEachMediaGroup(newMaster, function (properties, type, group, label) {\n      if (properties.playlists && properties.playlists.length) {\n        var id = properties.playlists[0].id;\n\n        var _playlistUpdate = updateMaster$1(update, properties.playlists[0], dashPlaylistUnchanged);\n\n        if (_playlistUpdate) {\n          update = _playlistUpdate; // update the playlist reference within media groups\n\n          update.mediaGroups[type][group][label].playlists[0] = update.playlists[id];\n          noChanges = false;\n        }\n      }\n    });\n\n    if (newMaster.minimumUpdatePeriod !== oldMaster.minimumUpdatePeriod) {\n      noChanges = false;\n    }\n\n    if (noChanges) {\n      return null;\n    }\n\n    return update;\n  }; // SIDX should be equivalent if the URI and byteranges of the SIDX match.\n  // If the SIDXs have maps, the two maps should match,\n  // both `a` and `b` missing SIDXs is considered matching.\n  // If `a` or `b` but not both have a map, they aren't matching.\n\n\n  var equivalentSidx = function equivalentSidx(a, b) {\n    var neitherMap = Boolean(!a.map && !b.map);\n    var equivalentMap = neitherMap || Boolean(a.map && b.map && a.map.byterange.offset === b.map.byterange.offset && a.map.byterange.length === b.map.byterange.length);\n    return equivalentMap && a.uri === b.uri && a.byterange.offset === b.byterange.offset && a.byterange.length === b.byterange.length;\n  }; // exported for testing\n\n\n  var compareSidxEntry = function compareSidxEntry(playlists, oldSidxMapping) {\n    var newSidxMapping = {};\n\n    for (var id in playlists) {\n      var playlist = playlists[id];\n      var currentSidxInfo = playlist.sidx;\n\n      if (currentSidxInfo) {\n        var key = generateSidxKey(currentSidxInfo);\n\n        if (!oldSidxMapping[key]) {\n          break;\n        }\n\n        var savedSidxInfo = oldSidxMapping[key].sidxInfo;\n\n        if (equivalentSidx(savedSidxInfo, currentSidxInfo)) {\n          newSidxMapping[key] = oldSidxMapping[key];\n        }\n      }\n    }\n\n    return newSidxMapping;\n  };\n  /**\n   *  A function that filters out changed items as they need to be requested separately.\n   *\n   *  The method is exported for testing\n   *\n   *  @param {Object} master the parsed mpd XML returned via mpd-parser\n   *  @param {Object} oldSidxMapping the SIDX to compare against\n   */\n\n\n  var filterChangedSidxMappings = function filterChangedSidxMappings(master, oldSidxMapping) {\n    var videoSidx = compareSidxEntry(master.playlists, oldSidxMapping);\n    var mediaGroupSidx = videoSidx;\n    forEachMediaGroup(master, function (properties, mediaType, groupKey, labelKey) {\n      if (properties.playlists && properties.playlists.length) {\n        var playlists = properties.playlists;\n        mediaGroupSidx = mergeOptions(mediaGroupSidx, compareSidxEntry(playlists, oldSidxMapping));\n      }\n    });\n    return mediaGroupSidx;\n  };\n\n  var DashPlaylistLoader = /*#__PURE__*/function (_EventTarget) {\n    inheritsLoose(DashPlaylistLoader, _EventTarget); // DashPlaylistLoader must accept either a src url or a playlist because subsequent\n    // playlist loader setups from media groups will expect to be able to pass a playlist\n    // (since there aren't external URLs to media playlists with DASH)\n\n\n    function DashPlaylistLoader(srcUrlOrPlaylist, vhs, options, masterPlaylistLoader) {\n      var _this;\n\n      if (options === void 0) {\n        options = {};\n      }\n\n      _this = _EventTarget.call(this) || this;\n      _this.masterPlaylistLoader_ = masterPlaylistLoader || assertThisInitialized(_this);\n\n      if (!masterPlaylistLoader) {\n        _this.isMaster_ = true;\n      }\n\n      var _options = options,\n          _options$withCredenti = _options.withCredentials,\n          withCredentials = _options$withCredenti === void 0 ? false : _options$withCredenti,\n          _options$handleManife = _options.handleManifestRedirects,\n          handleManifestRedirects = _options$handleManife === void 0 ? false : _options$handleManife;\n      _this.vhs_ = vhs;\n      _this.withCredentials = withCredentials;\n      _this.handleManifestRedirects = handleManifestRedirects;\n\n      if (!srcUrlOrPlaylist) {\n        throw new Error('A non-empty playlist URL or object is required');\n      } // event naming?\n\n\n      _this.on('minimumUpdatePeriod', function () {\n        _this.refreshXml_();\n      }); // live playlist staleness timeout\n\n\n      _this.on('mediaupdatetimeout', function () {\n        _this.refreshMedia_(_this.media().id);\n      });\n\n      _this.state = 'HAVE_NOTHING';\n      _this.loadedPlaylists_ = {};\n      _this.logger_ = logger('DashPlaylistLoader'); // initialize the loader state\n      // The masterPlaylistLoader will be created with a string\n\n      if (_this.isMaster_) {\n        _this.masterPlaylistLoader_.srcUrl = srcUrlOrPlaylist; // TODO: reset sidxMapping between period changes\n        // once multi-period is refactored\n\n        _this.masterPlaylistLoader_.sidxMapping_ = {};\n      } else {\n        _this.childPlaylist_ = srcUrlOrPlaylist;\n      }\n\n      return _this;\n    }\n\n    var _proto = DashPlaylistLoader.prototype;\n\n    _proto.requestErrored_ = function requestErrored_(err, request, startingState) {\n      // disposed\n      if (!this.request) {\n        return true;\n      } // pending request is cleared\n\n\n      this.request = null;\n\n      if (err) {\n        // use the provided error object or create one\n        // based on the request/response\n        this.error = typeof err === 'object' && !(err instanceof Error) ? err : {\n          status: request.status,\n          message: 'DASH request error at URL: ' + request.uri,\n          response: request.response,\n          // MEDIA_ERR_NETWORK\n          code: 2\n        };\n\n        if (startingState) {\n          this.state = startingState;\n        }\n\n        this.trigger('error');\n        return true;\n      }\n    }\n    /**\n     * Verify that the container of the sidx segment can be parsed\n     * and if it can, get and parse that segment.\n     */\n    ;\n\n    _proto.addSidxSegments_ = function addSidxSegments_(playlist, startingState, cb) {\n      var _this2 = this;\n\n      var sidxKey = playlist.sidx && generateSidxKey(playlist.sidx); // playlist lacks sidx or sidx segments were added to this playlist already.\n\n      if (!playlist.sidx || !sidxKey || this.masterPlaylistLoader_.sidxMapping_[sidxKey]) {\n        // keep this function async\n        this.mediaRequest_ = window.setTimeout(function () {\n          return cb(false);\n        }, 0);\n        return;\n      } // resolve the segment URL relative to the playlist\n\n\n      var uri = resolveManifestRedirect(this.handleManifestRedirects, playlist.sidx.resolvedUri);\n\n      var fin = function fin(err, request) {\n        if (_this2.requestErrored_(err, request, startingState)) {\n          return;\n        }\n\n        var sidxMapping = _this2.masterPlaylistLoader_.sidxMapping_;\n        var sidx;\n\n        try {\n          sidx = parseSidx_1(toUint8(request.response).subarray(8));\n        } catch (e) {\n          // sidx parsing failed.\n          _this2.requestErrored_(e, request, startingState);\n\n          return;\n        }\n\n        sidxMapping[sidxKey] = {\n          sidxInfo: playlist.sidx,\n          sidx: sidx\n        };\n        addSidxSegmentsToPlaylist$1(playlist, sidx, playlist.sidx.resolvedUri);\n        return cb(true);\n      };\n\n      this.request = containerRequest(uri, this.vhs_.xhr, function (err, request, container, bytes) {\n        if (err) {\n          return fin(err, request);\n        }\n\n        if (!container || container !== 'mp4') {\n          return fin({\n            status: request.status,\n            message: \"Unsupported \" + (container || 'unknown') + \" container type for sidx segment at URL: \" + uri,\n            // response is just bytes in this case\n            // but we really don't want to return that.\n            response: '',\n            playlist: playlist,\n            internal: true,\n            blacklistDuration: Infinity,\n            // MEDIA_ERR_NETWORK\n            code: 2\n          }, request);\n        } // if we already downloaded the sidx bytes in the container request, use them\n\n\n        var _playlist$sidx$bytera = playlist.sidx.byterange,\n            offset = _playlist$sidx$bytera.offset,\n            length = _playlist$sidx$bytera.length;\n\n        if (bytes.length >= length + offset) {\n          return fin(err, {\n            response: bytes.subarray(offset, offset + length),\n            status: request.status,\n            uri: request.uri\n          });\n        } // otherwise request sidx bytes\n\n\n        _this2.request = _this2.vhs_.xhr({\n          uri: uri,\n          responseType: 'arraybuffer',\n          headers: segmentXhrHeaders({\n            byterange: playlist.sidx.byterange\n          })\n        }, fin);\n      });\n    };\n\n    _proto.dispose = function dispose() {\n      this.trigger('dispose');\n      this.stopRequest();\n      this.loadedPlaylists_ = {};\n      window.clearTimeout(this.minimumUpdatePeriodTimeout_);\n      window.clearTimeout(this.mediaRequest_);\n      window.clearTimeout(this.mediaUpdateTimeout);\n      this.mediaUpdateTimeout = null;\n      this.mediaRequest_ = null;\n      this.minimumUpdatePeriodTimeout_ = null;\n\n      if (this.masterPlaylistLoader_.createMupOnMedia_) {\n        this.off('loadedmetadata', this.masterPlaylistLoader_.createMupOnMedia_);\n        this.masterPlaylistLoader_.createMupOnMedia_ = null;\n      }\n\n      this.off();\n    };\n\n    _proto.hasPendingRequest = function hasPendingRequest() {\n      return this.request || this.mediaRequest_;\n    };\n\n    _proto.stopRequest = function stopRequest() {\n      if (this.request) {\n        var oldRequest = this.request;\n        this.request = null;\n        oldRequest.onreadystatechange = null;\n        oldRequest.abort();\n      }\n    };\n\n    _proto.media = function media(playlist) {\n      var _this3 = this; // getter\n\n\n      if (!playlist) {\n        return this.media_;\n      } // setter\n\n\n      if (this.state === 'HAVE_NOTHING') {\n        throw new Error('Cannot switch media playlist from ' + this.state);\n      }\n\n      var startingState = this.state; // find the playlist object if the target playlist has been specified by URI\n\n      if (typeof playlist === 'string') {\n        if (!this.masterPlaylistLoader_.master.playlists[playlist]) {\n          throw new Error('Unknown playlist URI: ' + playlist);\n        }\n\n        playlist = this.masterPlaylistLoader_.master.playlists[playlist];\n      }\n\n      var mediaChange = !this.media_ || playlist.id !== this.media_.id; // switch to previously loaded playlists immediately\n\n      if (mediaChange && this.loadedPlaylists_[playlist.id] && this.loadedPlaylists_[playlist.id].endList) {\n        this.state = 'HAVE_METADATA';\n        this.media_ = playlist; // trigger media change if the active media has been updated\n\n        if (mediaChange) {\n          this.trigger('mediachanging');\n          this.trigger('mediachange');\n        }\n\n        return;\n      } // switching to the active playlist is a no-op\n\n\n      if (!mediaChange) {\n        return;\n      } // switching from an already loaded playlist\n\n\n      if (this.media_) {\n        this.trigger('mediachanging');\n      }\n\n      this.addSidxSegments_(playlist, startingState, function (sidxChanged) {\n        // everything is ready just continue to haveMetadata\n        _this3.haveMetadata({\n          startingState: startingState,\n          playlist: playlist\n        });\n      });\n    };\n\n    _proto.haveMetadata = function haveMetadata(_ref2) {\n      var startingState = _ref2.startingState,\n          playlist = _ref2.playlist;\n      this.state = 'HAVE_METADATA';\n      this.loadedPlaylists_[playlist.id] = playlist;\n      this.mediaRequest_ = null; // This will trigger loadedplaylist\n\n      this.refreshMedia_(playlist.id); // fire loadedmetadata the first time a media playlist is loaded\n      // to resolve setup of media groups\n\n      if (startingState === 'HAVE_MASTER') {\n        this.trigger('loadedmetadata');\n      } else {\n        // trigger media change if the active media has been updated\n        this.trigger('mediachange');\n      }\n    };\n\n    _proto.pause = function pause() {\n      if (this.masterPlaylistLoader_.createMupOnMedia_) {\n        this.off('loadedmetadata', this.masterPlaylistLoader_.createMupOnMedia_);\n        this.masterPlaylistLoader_.createMupOnMedia_ = null;\n      }\n\n      this.stopRequest();\n      window.clearTimeout(this.mediaUpdateTimeout);\n      this.mediaUpdateTimeout = null;\n\n      if (this.isMaster_) {\n        window.clearTimeout(this.masterPlaylistLoader_.minimumUpdatePeriodTimeout_);\n        this.masterPlaylistLoader_.minimumUpdatePeriodTimeout_ = null;\n      }\n\n      if (this.state === 'HAVE_NOTHING') {\n        // If we pause the loader before any data has been retrieved, its as if we never\n        // started, so reset to an unstarted state.\n        this.started = false;\n      }\n    };\n\n    _proto.load = function load(isFinalRendition) {\n      var _this4 = this;\n\n      window.clearTimeout(this.mediaUpdateTimeout);\n      this.mediaUpdateTimeout = null;\n      var media = this.media();\n\n      if (isFinalRendition) {\n        var delay = media ? media.targetDuration / 2 * 1000 : 5 * 1000;\n        this.mediaUpdateTimeout = window.setTimeout(function () {\n          return _this4.load();\n        }, delay);\n        return;\n      } // because the playlists are internal to the manifest, load should either load the\n      // main manifest, or do nothing but trigger an event\n\n\n      if (!this.started) {\n        this.start();\n        return;\n      }\n\n      if (media && !media.endList) {\n        // Check to see if this is the master loader and the MUP was cleared (this happens\n        // when the loader was paused). `media` should be set at this point since one is always\n        // set during `start()`.\n        if (this.isMaster_ && !this.minimumUpdatePeriodTimeout_) {\n          // Trigger minimumUpdatePeriod to refresh the master manifest\n          this.trigger('minimumUpdatePeriod'); // Since there was no prior minimumUpdatePeriodTimeout it should be recreated\n\n          this.updateMinimumUpdatePeriodTimeout_();\n        }\n\n        this.trigger('mediaupdatetimeout');\n      } else {\n        this.trigger('loadedplaylist');\n      }\n    };\n\n    _proto.start = function start() {\n      var _this5 = this;\n\n      this.started = true; // We don't need to request the master manifest again\n      // Call this asynchronously to match the xhr request behavior below\n\n      if (!this.isMaster_) {\n        this.mediaRequest_ = window.setTimeout(function () {\n          return _this5.haveMaster_();\n        }, 0);\n        return;\n      }\n\n      this.requestMaster_(function (req, masterChanged) {\n        _this5.haveMaster_();\n\n        if (!_this5.hasPendingRequest() && !_this5.media_) {\n          _this5.media(_this5.masterPlaylistLoader_.master.playlists[0]);\n        }\n      });\n    };\n\n    _proto.requestMaster_ = function requestMaster_(cb) {\n      var _this6 = this;\n\n      this.request = this.vhs_.xhr({\n        uri: this.masterPlaylistLoader_.srcUrl,\n        withCredentials: this.withCredentials\n      }, function (error, req) {\n        if (_this6.requestErrored_(error, req)) {\n          if (_this6.state === 'HAVE_NOTHING') {\n            _this6.started = false;\n          }\n\n          return;\n        }\n\n        var masterChanged = req.responseText !== _this6.masterPlaylistLoader_.masterXml_;\n        _this6.masterPlaylistLoader_.masterXml_ = req.responseText;\n\n        if (req.responseHeaders && req.responseHeaders.date) {\n          _this6.masterLoaded_ = Date.parse(req.responseHeaders.date);\n        } else {\n          _this6.masterLoaded_ = Date.now();\n        }\n\n        _this6.masterPlaylistLoader_.srcUrl = resolveManifestRedirect(_this6.handleManifestRedirects, _this6.masterPlaylistLoader_.srcUrl, req);\n\n        if (masterChanged) {\n          _this6.handleMaster_();\n\n          _this6.syncClientServerClock_(function () {\n            return cb(req, masterChanged);\n          });\n\n          return;\n        }\n\n        return cb(req, masterChanged);\n      });\n    }\n    /**\n     * Parses the master xml for UTCTiming node to sync the client clock to the server\n     * clock. If the UTCTiming node requires a HEAD or GET request, that request is made.\n     *\n     * @param {Function} done\n     *        Function to call when clock sync has completed\n     */\n    ;\n\n    _proto.syncClientServerClock_ = function syncClientServerClock_(done) {\n      var _this7 = this;\n\n      var utcTiming = parseUTCTiming(this.masterPlaylistLoader_.masterXml_); // No UTCTiming element found in the mpd. Use Date header from mpd request as the\n      // server clock\n\n      if (utcTiming === null) {\n        this.masterPlaylistLoader_.clientOffset_ = this.masterLoaded_ - Date.now();\n        return done();\n      }\n\n      if (utcTiming.method === 'DIRECT') {\n        this.masterPlaylistLoader_.clientOffset_ = utcTiming.value - Date.now();\n        return done();\n      }\n\n      this.request = this.vhs_.xhr({\n        uri: resolveUrl(this.masterPlaylistLoader_.srcUrl, utcTiming.value),\n        method: utcTiming.method,\n        withCredentials: this.withCredentials\n      }, function (error, req) {\n        // disposed\n        if (!_this7.request) {\n          return;\n        }\n\n        if (error) {\n          // sync request failed, fall back to using date header from mpd\n          // TODO: log warning\n          _this7.masterPlaylistLoader_.clientOffset_ = _this7.masterLoaded_ - Date.now();\n          return done();\n        }\n\n        var serverTime;\n\n        if (utcTiming.method === 'HEAD') {\n          if (!req.responseHeaders || !req.responseHeaders.date) {\n            // expected date header not preset, fall back to using date header from mpd\n            // TODO: log warning\n            serverTime = _this7.masterLoaded_;\n          } else {\n            serverTime = Date.parse(req.responseHeaders.date);\n          }\n        } else {\n          serverTime = Date.parse(req.responseText);\n        }\n\n        _this7.masterPlaylistLoader_.clientOffset_ = serverTime - Date.now();\n        done();\n      });\n    };\n\n    _proto.haveMaster_ = function haveMaster_() {\n      this.state = 'HAVE_MASTER';\n\n      if (this.isMaster_) {\n        // We have the master playlist at this point, so\n        // trigger this to allow MasterPlaylistController\n        // to make an initial playlist selection\n        this.trigger('loadedplaylist');\n      } else if (!this.media_) {\n        // no media playlist was specifically selected so select\n        // the one the child playlist loader was created with\n        this.media(this.childPlaylist_);\n      }\n    };\n\n    _proto.handleMaster_ = function handleMaster_() {\n      // clear media request\n      this.mediaRequest_ = null;\n      var oldMaster = this.masterPlaylistLoader_.master;\n      var newMaster = parseMasterXml({\n        masterXml: this.masterPlaylistLoader_.masterXml_,\n        srcUrl: this.masterPlaylistLoader_.srcUrl,\n        clientOffset: this.masterPlaylistLoader_.clientOffset_,\n        sidxMapping: this.masterPlaylistLoader_.sidxMapping_,\n        previousManifest: oldMaster\n      }); // if we have an old master to compare the new master against\n\n      if (oldMaster) {\n        newMaster = updateMaster(oldMaster, newMaster, this.masterPlaylistLoader_.sidxMapping_);\n      } // only update master if we have a new master\n\n\n      this.masterPlaylistLoader_.master = newMaster ? newMaster : oldMaster;\n      var location = this.masterPlaylistLoader_.master.locations && this.masterPlaylistLoader_.master.locations[0];\n\n      if (location && location !== this.masterPlaylistLoader_.srcUrl) {\n        this.masterPlaylistLoader_.srcUrl = location;\n      }\n\n      if (!oldMaster || newMaster && newMaster.minimumUpdatePeriod !== oldMaster.minimumUpdatePeriod) {\n        this.updateMinimumUpdatePeriodTimeout_();\n      }\n\n      return Boolean(newMaster);\n    };\n\n    _proto.updateMinimumUpdatePeriodTimeout_ = function updateMinimumUpdatePeriodTimeout_() {\n      var mpl = this.masterPlaylistLoader_; // cancel any pending creation of mup on media\n      // a new one will be added if needed.\n\n      if (mpl.createMupOnMedia_) {\n        mpl.off('loadedmetadata', mpl.createMupOnMedia_);\n        mpl.createMupOnMedia_ = null;\n      } // clear any pending timeouts\n\n\n      if (mpl.minimumUpdatePeriodTimeout_) {\n        window.clearTimeout(mpl.minimumUpdatePeriodTimeout_);\n        mpl.minimumUpdatePeriodTimeout_ = null;\n      }\n\n      var mup = mpl.master && mpl.master.minimumUpdatePeriod; // If the minimumUpdatePeriod has a value of 0, that indicates that the current\n      // MPD has no future validity, so a new one will need to be acquired when new\n      // media segments are to be made available. Thus, we use the target duration\n      // in this case\n\n      if (mup === 0) {\n        if (mpl.media()) {\n          mup = mpl.media().targetDuration * 1000;\n        } else {\n          mpl.createMupOnMedia_ = mpl.updateMinimumUpdatePeriodTimeout_;\n          mpl.one('loadedmetadata', mpl.createMupOnMedia_);\n        }\n      } // if minimumUpdatePeriod is invalid or <= zero, which\n      // can happen when a live video becomes VOD. skip timeout\n      // creation.\n\n\n      if (typeof mup !== 'number' || mup <= 0) {\n        if (mup < 0) {\n          this.logger_(\"found invalid minimumUpdatePeriod of \" + mup + \", not setting a timeout\");\n        }\n\n        return;\n      }\n\n      this.createMUPTimeout_(mup);\n    };\n\n    _proto.createMUPTimeout_ = function createMUPTimeout_(mup) {\n      var mpl = this.masterPlaylistLoader_;\n      mpl.minimumUpdatePeriodTimeout_ = window.setTimeout(function () {\n        mpl.minimumUpdatePeriodTimeout_ = null;\n        mpl.trigger('minimumUpdatePeriod');\n        mpl.createMUPTimeout_(mup);\n      }, mup);\n    }\n    /**\n     * Sends request to refresh the master xml and updates the parsed master manifest\n     */\n    ;\n\n    _proto.refreshXml_ = function refreshXml_() {\n      var _this8 = this;\n\n      this.requestMaster_(function (req, masterChanged) {\n        if (!masterChanged) {\n          return;\n        }\n\n        if (_this8.media_) {\n          _this8.media_ = _this8.masterPlaylistLoader_.master.playlists[_this8.media_.id];\n        } // This will filter out updated sidx info from the mapping\n\n\n        _this8.masterPlaylistLoader_.sidxMapping_ = filterChangedSidxMappings(_this8.masterPlaylistLoader_.master, _this8.masterPlaylistLoader_.sidxMapping_);\n\n        _this8.addSidxSegments_(_this8.media(), _this8.state, function (sidxChanged) {\n          // TODO: do we need to reload the current playlist?\n          _this8.refreshMedia_(_this8.media().id);\n        });\n      });\n    }\n    /**\n     * Refreshes the media playlist by re-parsing the master xml and updating playlist\n     * references. If this is an alternate loader, the updated parsed manifest is retrieved\n     * from the master loader.\n     */\n    ;\n\n    _proto.refreshMedia_ = function refreshMedia_(mediaID) {\n      var _this9 = this;\n\n      if (!mediaID) {\n        throw new Error('refreshMedia_ must take a media id');\n      } // for master we have to reparse the master xml\n      // to re-create segments based on current timing values\n      // which may change media. We only skip updating master\n      // if this is the first time this.media_ is being set.\n      // as master was just parsed in that case.\n\n\n      if (this.media_ && this.isMaster_) {\n        this.handleMaster_();\n      }\n\n      var playlists = this.masterPlaylistLoader_.master.playlists;\n      var mediaChanged = !this.media_ || this.media_ !== playlists[mediaID];\n\n      if (mediaChanged) {\n        this.media_ = playlists[mediaID];\n      } else {\n        this.trigger('playlistunchanged');\n      }\n\n      if (!this.mediaUpdateTimeout) {\n        var createMediaUpdateTimeout = function createMediaUpdateTimeout() {\n          if (_this9.media().endList) {\n            return;\n          }\n\n          _this9.mediaUpdateTimeout = window.setTimeout(function () {\n            _this9.trigger('mediaupdatetimeout');\n\n            createMediaUpdateTimeout();\n          }, refreshDelay(_this9.media(), Boolean(mediaChanged)));\n        };\n\n        createMediaUpdateTimeout();\n      }\n\n      this.trigger('loadedplaylist');\n    };\n\n    return DashPlaylistLoader;\n  }(EventTarget);\n\n  var Config = {\n    GOAL_BUFFER_LENGTH: 30,\n    MAX_GOAL_BUFFER_LENGTH: 60,\n    BACK_BUFFER_LENGTH: 30,\n    GOAL_BUFFER_LENGTH_RATE: 1,\n    // 0.5 MB/s\n    INITIAL_BANDWIDTH: 4194304,\n    // A fudge factor to apply to advertised playlist bitrates to account for\n    // temporary flucations in client bandwidth\n    BANDWIDTH_VARIANCE: 1.2,\n    // How much of the buffer must be filled before we consider upswitching\n    BUFFER_LOW_WATER_LINE: 0,\n    MAX_BUFFER_LOW_WATER_LINE: 30,\n    // TODO: Remove this when experimentalBufferBasedABR is removed\n    EXPERIMENTAL_MAX_BUFFER_LOW_WATER_LINE: 16,\n    BUFFER_LOW_WATER_LINE_RATE: 1,\n    // If the buffer is greater than the high water line, we won't switch down\n    BUFFER_HIGH_WATER_LINE: 30\n  };\n\n  var stringToArrayBuffer = function stringToArrayBuffer(string) {\n    var view = new Uint8Array(new ArrayBuffer(string.length));\n\n    for (var i = 0; i < string.length; i++) {\n      view[i] = string.charCodeAt(i);\n    }\n\n    return view.buffer;\n  };\n  /* global Blob, BlobBuilder, Worker */\n  // unify worker interface\n\n\n  var browserWorkerPolyFill = function browserWorkerPolyFill(workerObj) {\n    // node only supports on/off\n    workerObj.on = workerObj.addEventListener;\n    workerObj.off = workerObj.removeEventListener;\n    return workerObj;\n  };\n\n  var createObjectURL = function createObjectURL(str) {\n    try {\n      return URL.createObjectURL(new Blob([str], {\n        type: 'application/javascript'\n      }));\n    } catch (e) {\n      var blob = new BlobBuilder();\n      blob.append(str);\n      return URL.createObjectURL(blob.getBlob());\n    }\n  };\n\n  var factory = function factory(code) {\n    return function () {\n      var objectUrl = createObjectURL(code);\n      var worker = browserWorkerPolyFill(new Worker(objectUrl));\n      worker.objURL = objectUrl;\n      var terminate = worker.terminate;\n      worker.on = worker.addEventListener;\n      worker.off = worker.removeEventListener;\n\n      worker.terminate = function () {\n        URL.revokeObjectURL(objectUrl);\n        return terminate.call(this);\n      };\n\n      return worker;\n    };\n  };\n\n  var transform = function transform(code) {\n    return \"var browserWorkerPolyFill = \" + browserWorkerPolyFill.toString() + \";\\n\" + 'browserWorkerPolyFill(self);\\n' + code;\n  };\n\n  var getWorkerString = function getWorkerString(fn) {\n    return fn.toString().replace(/^function.+?{/, '').slice(0, -1);\n  };\n  /* rollup-plugin-worker-factory start for worker!/Users/abarstow/videojs/http-streaming/src/transmuxer-worker.js */\n\n\n  var workerCode$1 = transform(getWorkerString(function () {\n    /**\n     * mux.js\n     *\n     * Copyright (c) Brightcove\n     * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE\n     *\n     * A lightweight readable stream implemention that handles event dispatching.\n     * Objects that inherit from streams should call init in their constructors.\n     */\n    var Stream = function Stream() {\n      this.init = function () {\n        var listeners = {};\n        /**\n         * Add a listener for a specified event type.\n         * @param type {string} the event name\n         * @param listener {function} the callback to be invoked when an event of\n         * the specified type occurs\n         */\n\n        this.on = function (type, listener) {\n          if (!listeners[type]) {\n            listeners[type] = [];\n          }\n\n          listeners[type] = listeners[type].concat(listener);\n        };\n        /**\n         * Remove a listener for a specified event type.\n         * @param type {string} the event name\n         * @param listener {function} a function previously registered for this\n         * type of event through `on`\n         */\n\n\n        this.off = function (type, listener) {\n          var index;\n\n          if (!listeners[type]) {\n            return false;\n          }\n\n          index = listeners[type].indexOf(listener);\n          listeners[type] = listeners[type].slice();\n          listeners[type].splice(index, 1);\n          return index > -1;\n        };\n        /**\n         * Trigger an event of the specified type on this stream. Any additional\n         * arguments to this function are passed as parameters to event listeners.\n         * @param type {string} the event name\n         */\n\n\n        this.trigger = function (type) {\n          var callbacks, i, length, args;\n          callbacks = listeners[type];\n\n          if (!callbacks) {\n            return;\n          } // Slicing the arguments on every invocation of this method\n          // can add a significant amount of overhead. Avoid the\n          // intermediate object creation for the common case of a\n          // single callback argument\n\n\n          if (arguments.length === 2) {\n            length = callbacks.length;\n\n            for (i = 0; i < length; ++i) {\n              callbacks[i].call(this, arguments[1]);\n            }\n          } else {\n            args = [];\n            i = arguments.length;\n\n            for (i = 1; i < arguments.length; ++i) {\n              args.push(arguments[i]);\n            }\n\n            length = callbacks.length;\n\n            for (i = 0; i < length; ++i) {\n              callbacks[i].apply(this, args);\n            }\n          }\n        };\n        /**\n         * Destroys the stream and cleans up.\n         */\n\n\n        this.dispose = function () {\n          listeners = {};\n        };\n      };\n    };\n    /**\n     * Forwards all `data` events on this stream to the destination stream. The\n     * destination stream should provide a method `push` to receive the data\n     * events as they arrive.\n     * @param destination {stream} the stream that will receive all `data` events\n     * @param autoFlush {boolean} if false, we will not call `flush` on the destination\n     *                            when the current stream emits a 'done' event\n     * @see http://nodejs.org/api/stream.html#stream_readable_pipe_destination_options\n     */\n\n\n    Stream.prototype.pipe = function (destination) {\n      this.on('data', function (data) {\n        destination.push(data);\n      });\n      this.on('done', function (flushSource) {\n        destination.flush(flushSource);\n      });\n      this.on('partialdone', function (flushSource) {\n        destination.partialFlush(flushSource);\n      });\n      this.on('endedtimeline', function (flushSource) {\n        destination.endTimeline(flushSource);\n      });\n      this.on('reset', function (flushSource) {\n        destination.reset(flushSource);\n      });\n      return destination;\n    }; // Default stream functions that are expected to be overridden to perform\n    // actual work. These are provided by the prototype as a sort of no-op\n    // implementation so that we don't have to check for their existence in the\n    // `pipe` function above.\n\n\n    Stream.prototype.push = function (data) {\n      this.trigger('data', data);\n    };\n\n    Stream.prototype.flush = function (flushSource) {\n      this.trigger('done', flushSource);\n    };\n\n    Stream.prototype.partialFlush = function (flushSource) {\n      this.trigger('partialdone', flushSource);\n    };\n\n    Stream.prototype.endTimeline = function (flushSource) {\n      this.trigger('endedtimeline', flushSource);\n    };\n\n    Stream.prototype.reset = function (flushSource) {\n      this.trigger('reset', flushSource);\n    };\n\n    var stream = Stream;\n    var MAX_UINT32$1 = Math.pow(2, 32);\n\n    var getUint64$2 = function getUint64(uint8) {\n      var dv = new DataView(uint8.buffer, uint8.byteOffset, uint8.byteLength);\n      var value;\n\n      if (dv.getBigUint64) {\n        value = dv.getBigUint64(0);\n\n        if (value < Number.MAX_SAFE_INTEGER) {\n          return Number(value);\n        }\n\n        return value;\n      }\n\n      return dv.getUint32(0) * MAX_UINT32$1 + dv.getUint32(4);\n    };\n\n    var numbers = {\n      getUint64: getUint64$2,\n      MAX_UINT32: MAX_UINT32$1\n    };\n    var MAX_UINT32 = numbers.MAX_UINT32;\n    var box, dinf, esds, ftyp, mdat, mfhd, minf, moof, moov, mvex, mvhd, trak, tkhd, mdia, mdhd, hdlr, sdtp, stbl, stsd, traf, trex, trun$1, types, MAJOR_BRAND, MINOR_VERSION, AVC1_BRAND, VIDEO_HDLR, AUDIO_HDLR, HDLR_TYPES, VMHD, SMHD, DREF, STCO, STSC, STSZ, STTS; // pre-calculate constants\n\n    (function () {\n      var i;\n      types = {\n        avc1: [],\n        // codingname\n        avcC: [],\n        btrt: [],\n        dinf: [],\n        dref: [],\n        esds: [],\n        ftyp: [],\n        hdlr: [],\n        mdat: [],\n        mdhd: [],\n        mdia: [],\n        mfhd: [],\n        minf: [],\n        moof: [],\n        moov: [],\n        mp4a: [],\n        // codingname\n        mvex: [],\n        mvhd: [],\n        pasp: [],\n        sdtp: [],\n        smhd: [],\n        stbl: [],\n        stco: [],\n        stsc: [],\n        stsd: [],\n        stsz: [],\n        stts: [],\n        styp: [],\n        tfdt: [],\n        tfhd: [],\n        traf: [],\n        trak: [],\n        trun: [],\n        trex: [],\n        tkhd: [],\n        vmhd: []\n      }; // In environments where Uint8Array is undefined (e.g., IE8), skip set up so that we\n      // don't throw an error\n\n      if (typeof Uint8Array === 'undefined') {\n        return;\n      }\n\n      for (i in types) {\n        if (types.hasOwnProperty(i)) {\n          types[i] = [i.charCodeAt(0), i.charCodeAt(1), i.charCodeAt(2), i.charCodeAt(3)];\n        }\n      }\n\n      MAJOR_BRAND = new Uint8Array(['i'.charCodeAt(0), 's'.charCodeAt(0), 'o'.charCodeAt(0), 'm'.charCodeAt(0)]);\n      AVC1_BRAND = new Uint8Array(['a'.charCodeAt(0), 'v'.charCodeAt(0), 'c'.charCodeAt(0), '1'.charCodeAt(0)]);\n      MINOR_VERSION = new Uint8Array([0, 0, 0, 1]);\n      VIDEO_HDLR = new Uint8Array([0x00, // version 0\n      0x00, 0x00, 0x00, // flags\n      0x00, 0x00, 0x00, 0x00, // pre_defined\n      0x76, 0x69, 0x64, 0x65, // handler_type: 'vide'\n      0x00, 0x00, 0x00, 0x00, // reserved\n      0x00, 0x00, 0x00, 0x00, // reserved\n      0x00, 0x00, 0x00, 0x00, // reserved\n      0x56, 0x69, 0x64, 0x65, 0x6f, 0x48, 0x61, 0x6e, 0x64, 0x6c, 0x65, 0x72, 0x00 // name: 'VideoHandler'\n      ]);\n      AUDIO_HDLR = new Uint8Array([0x00, // version 0\n      0x00, 0x00, 0x00, // flags\n      0x00, 0x00, 0x00, 0x00, // pre_defined\n      0x73, 0x6f, 0x75, 0x6e, // handler_type: 'soun'\n      0x00, 0x00, 0x00, 0x00, // reserved\n      0x00, 0x00, 0x00, 0x00, // reserved\n      0x00, 0x00, 0x00, 0x00, // reserved\n      0x53, 0x6f, 0x75, 0x6e, 0x64, 0x48, 0x61, 0x6e, 0x64, 0x6c, 0x65, 0x72, 0x00 // name: 'SoundHandler'\n      ]);\n      HDLR_TYPES = {\n        video: VIDEO_HDLR,\n        audio: AUDIO_HDLR\n      };\n      DREF = new Uint8Array([0x00, // version 0\n      0x00, 0x00, 0x00, // flags\n      0x00, 0x00, 0x00, 0x01, // entry_count\n      0x00, 0x00, 0x00, 0x0c, // entry_size\n      0x75, 0x72, 0x6c, 0x20, // 'url' type\n      0x00, // version 0\n      0x00, 0x00, 0x01 // entry_flags\n      ]);\n      SMHD = new Uint8Array([0x00, // version\n      0x00, 0x00, 0x00, // flags\n      0x00, 0x00, // balance, 0 means centered\n      0x00, 0x00 // reserved\n      ]);\n      STCO = new Uint8Array([0x00, // version\n      0x00, 0x00, 0x00, // flags\n      0x00, 0x00, 0x00, 0x00 // entry_count\n      ]);\n      STSC = STCO;\n      STSZ = new Uint8Array([0x00, // version\n      0x00, 0x00, 0x00, // flags\n      0x00, 0x00, 0x00, 0x00, // sample_size\n      0x00, 0x00, 0x00, 0x00 // sample_count\n      ]);\n      STTS = STCO;\n      VMHD = new Uint8Array([0x00, // version\n      0x00, 0x00, 0x01, // flags\n      0x00, 0x00, // graphicsmode\n      0x00, 0x00, 0x00, 0x00, 0x00, 0x00 // opcolor\n      ]);\n    })();\n\n    box = function box(type) {\n      var payload = [],\n          size = 0,\n          i,\n          result,\n          view;\n\n      for (i = 1; i < arguments.length; i++) {\n        payload.push(arguments[i]);\n      }\n\n      i = payload.length; // calculate the total size we need to allocate\n\n      while (i--) {\n        size += payload[i].byteLength;\n      }\n\n      result = new Uint8Array(size + 8);\n      view = new DataView(result.buffer, result.byteOffset, result.byteLength);\n      view.setUint32(0, result.byteLength);\n      result.set(type, 4); // copy the payload into the result\n\n      for (i = 0, size = 8; i < payload.length; i++) {\n        result.set(payload[i], size);\n        size += payload[i].byteLength;\n      }\n\n      return result;\n    };\n\n    dinf = function dinf() {\n      return box(types.dinf, box(types.dref, DREF));\n    };\n\n    esds = function esds(track) {\n      return box(types.esds, new Uint8Array([0x00, // version\n      0x00, 0x00, 0x00, // flags\n      // ES_Descriptor\n      0x03, // tag, ES_DescrTag\n      0x19, // length\n      0x00, 0x00, // ES_ID\n      0x00, // streamDependenceFlag, URL_flag, reserved, streamPriority\n      // DecoderConfigDescriptor\n      0x04, // tag, DecoderConfigDescrTag\n      0x11, // length\n      0x40, // object type\n      0x15, // streamType\n      0x00, 0x06, 0x00, // bufferSizeDB\n      0x00, 0x00, 0xda, 0xc0, // maxBitrate\n      0x00, 0x00, 0xda, 0xc0, // avgBitrate\n      // DecoderSpecificInfo\n      0x05, // tag, DecoderSpecificInfoTag\n      0x02, // length\n      // ISO/IEC 14496-3, AudioSpecificConfig\n      // for samplingFrequencyIndex see ISO/IEC 13818-7:2006, 8.1.3.2.2, Table 35\n      track.audioobjecttype << 3 | track.samplingfrequencyindex >>> 1, track.samplingfrequencyindex << 7 | track.channelcount << 3, 0x06, 0x01, 0x02 // GASpecificConfig\n      ]));\n    };\n\n    ftyp = function ftyp() {\n      return box(types.ftyp, MAJOR_BRAND, MINOR_VERSION, MAJOR_BRAND, AVC1_BRAND);\n    };\n\n    hdlr = function hdlr(type) {\n      return box(types.hdlr, HDLR_TYPES[type]);\n    };\n\n    mdat = function mdat(data) {\n      return box(types.mdat, data);\n    };\n\n    mdhd = function mdhd(track) {\n      var result = new Uint8Array([0x00, // version 0\n      0x00, 0x00, 0x00, // flags\n      0x00, 0x00, 0x00, 0x02, // creation_time\n      0x00, 0x00, 0x00, 0x03, // modification_time\n      0x00, 0x01, 0x5f, 0x90, // timescale, 90,000 \"ticks\" per second\n      track.duration >>> 24 & 0xFF, track.duration >>> 16 & 0xFF, track.duration >>> 8 & 0xFF, track.duration & 0xFF, // duration\n      0x55, 0xc4, // 'und' language (undetermined)\n      0x00, 0x00]); // Use the sample rate from the track metadata, when it is\n      // defined. The sample rate can be parsed out of an ADTS header, for\n      // instance.\n\n      if (track.samplerate) {\n        result[12] = track.samplerate >>> 24 & 0xFF;\n        result[13] = track.samplerate >>> 16 & 0xFF;\n        result[14] = track.samplerate >>> 8 & 0xFF;\n        result[15] = track.samplerate & 0xFF;\n      }\n\n      return box(types.mdhd, result);\n    };\n\n    mdia = function mdia(track) {\n      return box(types.mdia, mdhd(track), hdlr(track.type), minf(track));\n    };\n\n    mfhd = function mfhd(sequenceNumber) {\n      return box(types.mfhd, new Uint8Array([0x00, 0x00, 0x00, 0x00, // flags\n      (sequenceNumber & 0xFF000000) >> 24, (sequenceNumber & 0xFF0000) >> 16, (sequenceNumber & 0xFF00) >> 8, sequenceNumber & 0xFF // sequence_number\n      ]));\n    };\n\n    minf = function minf(track) {\n      return box(types.minf, track.type === 'video' ? box(types.vmhd, VMHD) : box(types.smhd, SMHD), dinf(), stbl(track));\n    };\n\n    moof = function moof(sequenceNumber, tracks) {\n      var trackFragments = [],\n          i = tracks.length; // build traf boxes for each track fragment\n\n      while (i--) {\n        trackFragments[i] = traf(tracks[i]);\n      }\n\n      return box.apply(null, [types.moof, mfhd(sequenceNumber)].concat(trackFragments));\n    };\n    /**\n     * Returns a movie box.\n     * @param tracks {array} the tracks associated with this movie\n     * @see ISO/IEC 14496-12:2012(E), section 8.2.1\n     */\n\n\n    moov = function moov(tracks) {\n      var i = tracks.length,\n          boxes = [];\n\n      while (i--) {\n        boxes[i] = trak(tracks[i]);\n      }\n\n      return box.apply(null, [types.moov, mvhd(0xffffffff)].concat(boxes).concat(mvex(tracks)));\n    };\n\n    mvex = function mvex(tracks) {\n      var i = tracks.length,\n          boxes = [];\n\n      while (i--) {\n        boxes[i] = trex(tracks[i]);\n      }\n\n      return box.apply(null, [types.mvex].concat(boxes));\n    };\n\n    mvhd = function mvhd(duration) {\n      var bytes = new Uint8Array([0x00, // version 0\n      0x00, 0x00, 0x00, // flags\n      0x00, 0x00, 0x00, 0x01, // creation_time\n      0x00, 0x00, 0x00, 0x02, // modification_time\n      0x00, 0x01, 0x5f, 0x90, // timescale, 90,000 \"ticks\" per second\n      (duration & 0xFF000000) >> 24, (duration & 0xFF0000) >> 16, (duration & 0xFF00) >> 8, duration & 0xFF, // duration\n      0x00, 0x01, 0x00, 0x00, // 1.0 rate\n      0x01, 0x00, // 1.0 volume\n      0x00, 0x00, // reserved\n      0x00, 0x00, 0x00, 0x00, // reserved\n      0x00, 0x00, 0x00, 0x00, // reserved\n      0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x00, 0x00, 0x00, // transformation: unity matrix\n      0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // pre_defined\n      0xff, 0xff, 0xff, 0xff // next_track_ID\n      ]);\n      return box(types.mvhd, bytes);\n    };\n\n    sdtp = function sdtp(track) {\n      var samples = track.samples || [],\n          bytes = new Uint8Array(4 + samples.length),\n          flags,\n          i; // leave the full box header (4 bytes) all zero\n      // write the sample table\n\n      for (i = 0; i < samples.length; i++) {\n        flags = samples[i].flags;\n        bytes[i + 4] = flags.dependsOn << 4 | flags.isDependedOn << 2 | flags.hasRedundancy;\n      }\n\n      return box(types.sdtp, bytes);\n    };\n\n    stbl = function stbl(track) {\n      return box(types.stbl, stsd(track), box(types.stts, STTS), box(types.stsc, STSC), box(types.stsz, STSZ), box(types.stco, STCO));\n    };\n\n    (function () {\n      var videoSample, audioSample;\n\n      stsd = function stsd(track) {\n        return box(types.stsd, new Uint8Array([0x00, // version 0\n        0x00, 0x00, 0x00, // flags\n        0x00, 0x00, 0x00, 0x01]), track.type === 'video' ? videoSample(track) : audioSample(track));\n      };\n\n      videoSample = function videoSample(track) {\n        var sps = track.sps || [],\n            pps = track.pps || [],\n            sequenceParameterSets = [],\n            pictureParameterSets = [],\n            i,\n            avc1Box; // assemble the SPSs\n\n        for (i = 0; i < sps.length; i++) {\n          sequenceParameterSets.push((sps[i].byteLength & 0xFF00) >>> 8);\n          sequenceParameterSets.push(sps[i].byteLength & 0xFF); // sequenceParameterSetLength\n\n          sequenceParameterSets = sequenceParameterSets.concat(Array.prototype.slice.call(sps[i])); // SPS\n        } // assemble the PPSs\n\n\n        for (i = 0; i < pps.length; i++) {\n          pictureParameterSets.push((pps[i].byteLength & 0xFF00) >>> 8);\n          pictureParameterSets.push(pps[i].byteLength & 0xFF);\n          pictureParameterSets = pictureParameterSets.concat(Array.prototype.slice.call(pps[i]));\n        }\n\n        avc1Box = [types.avc1, new Uint8Array([0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // reserved\n        0x00, 0x01, // data_reference_index\n        0x00, 0x00, // pre_defined\n        0x00, 0x00, // reserved\n        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // pre_defined\n        (track.width & 0xff00) >> 8, track.width & 0xff, // width\n        (track.height & 0xff00) >> 8, track.height & 0xff, // height\n        0x00, 0x48, 0x00, 0x00, // horizresolution\n        0x00, 0x48, 0x00, 0x00, // vertresolution\n        0x00, 0x00, 0x00, 0x00, // reserved\n        0x00, 0x01, // frame_count\n        0x13, 0x76, 0x69, 0x64, 0x65, 0x6f, 0x6a, 0x73, 0x2d, 0x63, 0x6f, 0x6e, 0x74, 0x72, 0x69, 0x62, 0x2d, 0x68, 0x6c, 0x73, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // compressorname\n        0x00, 0x18, // depth = 24\n        0x11, 0x11 // pre_defined = -1\n        ]), box(types.avcC, new Uint8Array([0x01, // configurationVersion\n        track.profileIdc, // AVCProfileIndication\n        track.profileCompatibility, // profile_compatibility\n        track.levelIdc, // AVCLevelIndication\n        0xff // lengthSizeMinusOne, hard-coded to 4 bytes\n        ].concat([sps.length], // numOfSequenceParameterSets\n        sequenceParameterSets, // \"SPS\"\n        [pps.length], // numOfPictureParameterSets\n        pictureParameterSets // \"PPS\"\n        ))), box(types.btrt, new Uint8Array([0x00, 0x1c, 0x9c, 0x80, // bufferSizeDB\n        0x00, 0x2d, 0xc6, 0xc0, // maxBitrate\n        0x00, 0x2d, 0xc6, 0xc0 // avgBitrate\n        ]))];\n\n        if (track.sarRatio) {\n          var hSpacing = track.sarRatio[0],\n              vSpacing = track.sarRatio[1];\n          avc1Box.push(box(types.pasp, new Uint8Array([(hSpacing & 0xFF000000) >> 24, (hSpacing & 0xFF0000) >> 16, (hSpacing & 0xFF00) >> 8, hSpacing & 0xFF, (vSpacing & 0xFF000000) >> 24, (vSpacing & 0xFF0000) >> 16, (vSpacing & 0xFF00) >> 8, vSpacing & 0xFF])));\n        }\n\n        return box.apply(null, avc1Box);\n      };\n\n      audioSample = function audioSample(track) {\n        return box(types.mp4a, new Uint8Array([// SampleEntry, ISO/IEC 14496-12\n        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // reserved\n        0x00, 0x01, // data_reference_index\n        // AudioSampleEntry, ISO/IEC 14496-12\n        0x00, 0x00, 0x00, 0x00, // reserved\n        0x00, 0x00, 0x00, 0x00, // reserved\n        (track.channelcount & 0xff00) >> 8, track.channelcount & 0xff, // channelcount\n        (track.samplesize & 0xff00) >> 8, track.samplesize & 0xff, // samplesize\n        0x00, 0x00, // pre_defined\n        0x00, 0x00, // reserved\n        (track.samplerate & 0xff00) >> 8, track.samplerate & 0xff, 0x00, 0x00 // samplerate, 16.16\n        // MP4AudioSampleEntry, ISO/IEC 14496-14\n        ]), esds(track));\n      };\n    })();\n\n    tkhd = function tkhd(track) {\n      var result = new Uint8Array([0x00, // version 0\n      0x00, 0x00, 0x07, // flags\n      0x00, 0x00, 0x00, 0x00, // creation_time\n      0x00, 0x00, 0x00, 0x00, // modification_time\n      (track.id & 0xFF000000) >> 24, (track.id & 0xFF0000) >> 16, (track.id & 0xFF00) >> 8, track.id & 0xFF, // track_ID\n      0x00, 0x00, 0x00, 0x00, // reserved\n      (track.duration & 0xFF000000) >> 24, (track.duration & 0xFF0000) >> 16, (track.duration & 0xFF00) >> 8, track.duration & 0xFF, // duration\n      0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // reserved\n      0x00, 0x00, // layer\n      0x00, 0x00, // alternate_group\n      0x01, 0x00, // non-audio track volume\n      0x00, 0x00, // reserved\n      0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x00, 0x00, 0x00, // transformation: unity matrix\n      (track.width & 0xFF00) >> 8, track.width & 0xFF, 0x00, 0x00, // width\n      (track.height & 0xFF00) >> 8, track.height & 0xFF, 0x00, 0x00 // height\n      ]);\n      return box(types.tkhd, result);\n    };\n    /**\n     * Generate a track fragment (traf) box. A traf box collects metadata\n     * about tracks in a movie fragment (moof) box.\n     */\n\n\n    traf = function traf(track) {\n      var trackFragmentHeader, trackFragmentDecodeTime, trackFragmentRun, sampleDependencyTable, dataOffset, upperWordBaseMediaDecodeTime, lowerWordBaseMediaDecodeTime;\n      trackFragmentHeader = box(types.tfhd, new Uint8Array([0x00, // version 0\n      0x00, 0x00, 0x3a, // flags\n      (track.id & 0xFF000000) >> 24, (track.id & 0xFF0000) >> 16, (track.id & 0xFF00) >> 8, track.id & 0xFF, // track_ID\n      0x00, 0x00, 0x00, 0x01, // sample_description_index\n      0x00, 0x00, 0x00, 0x00, // default_sample_duration\n      0x00, 0x00, 0x00, 0x00, // default_sample_size\n      0x00, 0x00, 0x00, 0x00 // default_sample_flags\n      ]));\n      upperWordBaseMediaDecodeTime = Math.floor(track.baseMediaDecodeTime / MAX_UINT32);\n      lowerWordBaseMediaDecodeTime = Math.floor(track.baseMediaDecodeTime % MAX_UINT32);\n      trackFragmentDecodeTime = box(types.tfdt, new Uint8Array([0x01, // version 1\n      0x00, 0x00, 0x00, // flags\n      // baseMediaDecodeTime\n      upperWordBaseMediaDecodeTime >>> 24 & 0xFF, upperWordBaseMediaDecodeTime >>> 16 & 0xFF, upperWordBaseMediaDecodeTime >>> 8 & 0xFF, upperWordBaseMediaDecodeTime & 0xFF, lowerWordBaseMediaDecodeTime >>> 24 & 0xFF, lowerWordBaseMediaDecodeTime >>> 16 & 0xFF, lowerWordBaseMediaDecodeTime >>> 8 & 0xFF, lowerWordBaseMediaDecodeTime & 0xFF])); // the data offset specifies the number of bytes from the start of\n      // the containing moof to the first payload byte of the associated\n      // mdat\n\n      dataOffset = 32 + // tfhd\n      20 + // tfdt\n      8 + // traf header\n      16 + // mfhd\n      8 + // moof header\n      8; // mdat header\n      // audio tracks require less metadata\n\n      if (track.type === 'audio') {\n        trackFragmentRun = trun$1(track, dataOffset);\n        return box(types.traf, trackFragmentHeader, trackFragmentDecodeTime, trackFragmentRun);\n      } // video tracks should contain an independent and disposable samples\n      // box (sdtp)\n      // generate one and adjust offsets to match\n\n\n      sampleDependencyTable = sdtp(track);\n      trackFragmentRun = trun$1(track, sampleDependencyTable.length + dataOffset);\n      return box(types.traf, trackFragmentHeader, trackFragmentDecodeTime, trackFragmentRun, sampleDependencyTable);\n    };\n    /**\n     * Generate a track box.\n     * @param track {object} a track definition\n     * @return {Uint8Array} the track box\n     */\n\n\n    trak = function trak(track) {\n      track.duration = track.duration || 0xffffffff;\n      return box(types.trak, tkhd(track), mdia(track));\n    };\n\n    trex = function trex(track) {\n      var result = new Uint8Array([0x00, // version 0\n      0x00, 0x00, 0x00, // flags\n      (track.id & 0xFF000000) >> 24, (track.id & 0xFF0000) >> 16, (track.id & 0xFF00) >> 8, track.id & 0xFF, // track_ID\n      0x00, 0x00, 0x00, 0x01, // default_sample_description_index\n      0x00, 0x00, 0x00, 0x00, // default_sample_duration\n      0x00, 0x00, 0x00, 0x00, // default_sample_size\n      0x00, 0x01, 0x00, 0x01 // default_sample_flags\n      ]); // the last two bytes of default_sample_flags is the sample\n      // degradation priority, a hint about the importance of this sample\n      // relative to others. Lower the degradation priority for all sample\n      // types other than video.\n\n      if (track.type !== 'video') {\n        result[result.length - 1] = 0x00;\n      }\n\n      return box(types.trex, result);\n    };\n\n    (function () {\n      var audioTrun, videoTrun, trunHeader; // This method assumes all samples are uniform. That is, if a\n      // duration is present for the first sample, it will be present for\n      // all subsequent samples.\n      // see ISO/IEC 14496-12:2012, Section 8.8.8.1\n\n      trunHeader = function trunHeader(samples, offset) {\n        var durationPresent = 0,\n            sizePresent = 0,\n            flagsPresent = 0,\n            compositionTimeOffset = 0; // trun flag constants\n\n        if (samples.length) {\n          if (samples[0].duration !== undefined) {\n            durationPresent = 0x1;\n          }\n\n          if (samples[0].size !== undefined) {\n            sizePresent = 0x2;\n          }\n\n          if (samples[0].flags !== undefined) {\n            flagsPresent = 0x4;\n          }\n\n          if (samples[0].compositionTimeOffset !== undefined) {\n            compositionTimeOffset = 0x8;\n          }\n        }\n\n        return [0x00, // version 0\n        0x00, durationPresent | sizePresent | flagsPresent | compositionTimeOffset, 0x01, // flags\n        (samples.length & 0xFF000000) >>> 24, (samples.length & 0xFF0000) >>> 16, (samples.length & 0xFF00) >>> 8, samples.length & 0xFF, // sample_count\n        (offset & 0xFF000000) >>> 24, (offset & 0xFF0000) >>> 16, (offset & 0xFF00) >>> 8, offset & 0xFF // data_offset\n        ];\n      };\n\n      videoTrun = function videoTrun(track, offset) {\n        var bytesOffest, bytes, header, samples, sample, i;\n        samples = track.samples || [];\n        offset += 8 + 12 + 16 * samples.length;\n        header = trunHeader(samples, offset);\n        bytes = new Uint8Array(header.length + samples.length * 16);\n        bytes.set(header);\n        bytesOffest = header.length;\n\n        for (i = 0; i < samples.length; i++) {\n          sample = samples[i];\n          bytes[bytesOffest++] = (sample.duration & 0xFF000000) >>> 24;\n          bytes[bytesOffest++] = (sample.duration & 0xFF0000) >>> 16;\n          bytes[bytesOffest++] = (sample.duration & 0xFF00) >>> 8;\n          bytes[bytesOffest++] = sample.duration & 0xFF; // sample_duration\n\n          bytes[bytesOffest++] = (sample.size & 0xFF000000) >>> 24;\n          bytes[bytesOffest++] = (sample.size & 0xFF0000) >>> 16;\n          bytes[bytesOffest++] = (sample.size & 0xFF00) >>> 8;\n          bytes[bytesOffest++] = sample.size & 0xFF; // sample_size\n\n          bytes[bytesOffest++] = sample.flags.isLeading << 2 | sample.flags.dependsOn;\n          bytes[bytesOffest++] = sample.flags.isDependedOn << 6 | sample.flags.hasRedundancy << 4 | sample.flags.paddingValue << 1 | sample.flags.isNonSyncSample;\n          bytes[bytesOffest++] = sample.flags.degradationPriority & 0xF0 << 8;\n          bytes[bytesOffest++] = sample.flags.degradationPriority & 0x0F; // sample_flags\n\n          bytes[bytesOffest++] = (sample.compositionTimeOffset & 0xFF000000) >>> 24;\n          bytes[bytesOffest++] = (sample.compositionTimeOffset & 0xFF0000) >>> 16;\n          bytes[bytesOffest++] = (sample.compositionTimeOffset & 0xFF00) >>> 8;\n          bytes[bytesOffest++] = sample.compositionTimeOffset & 0xFF; // sample_composition_time_offset\n        }\n\n        return box(types.trun, bytes);\n      };\n\n      audioTrun = function audioTrun(track, offset) {\n        var bytes, bytesOffest, header, samples, sample, i;\n        samples = track.samples || [];\n        offset += 8 + 12 + 8 * samples.length;\n        header = trunHeader(samples, offset);\n        bytes = new Uint8Array(header.length + samples.length * 8);\n        bytes.set(header);\n        bytesOffest = header.length;\n\n        for (i = 0; i < samples.length; i++) {\n          sample = samples[i];\n          bytes[bytesOffest++] = (sample.duration & 0xFF000000) >>> 24;\n          bytes[bytesOffest++] = (sample.duration & 0xFF0000) >>> 16;\n          bytes[bytesOffest++] = (sample.duration & 0xFF00) >>> 8;\n          bytes[bytesOffest++] = sample.duration & 0xFF; // sample_duration\n\n          bytes[bytesOffest++] = (sample.size & 0xFF000000) >>> 24;\n          bytes[bytesOffest++] = (sample.size & 0xFF0000) >>> 16;\n          bytes[bytesOffest++] = (sample.size & 0xFF00) >>> 8;\n          bytes[bytesOffest++] = sample.size & 0xFF; // sample_size\n        }\n\n        return box(types.trun, bytes);\n      };\n\n      trun$1 = function trun(track, offset) {\n        if (track.type === 'audio') {\n          return audioTrun(track, offset);\n        }\n\n        return videoTrun(track, offset);\n      };\n    })();\n\n    var mp4Generator = {\n      ftyp: ftyp,\n      mdat: mdat,\n      moof: moof,\n      moov: moov,\n      initSegment: function initSegment(tracks) {\n        var fileType = ftyp(),\n            movie = moov(tracks),\n            result;\n        result = new Uint8Array(fileType.byteLength + movie.byteLength);\n        result.set(fileType);\n        result.set(movie, fileType.byteLength);\n        return result;\n      }\n    };\n    /**\n     * mux.js\n     *\n     * Copyright (c) Brightcove\n     * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE\n     */\n    // Convert an array of nal units into an array of frames with each frame being\n    // composed of the nal units that make up that frame\n    // Also keep track of cummulative data about the frame from the nal units such\n    // as the frame duration, starting pts, etc.\n\n    var groupNalsIntoFrames = function groupNalsIntoFrames(nalUnits) {\n      var i,\n          currentNal,\n          currentFrame = [],\n          frames = []; // TODO added for LHLS, make sure this is OK\n\n      frames.byteLength = 0;\n      frames.nalCount = 0;\n      frames.duration = 0;\n      currentFrame.byteLength = 0;\n\n      for (i = 0; i < nalUnits.length; i++) {\n        currentNal = nalUnits[i]; // Split on 'aud'-type nal units\n\n        if (currentNal.nalUnitType === 'access_unit_delimiter_rbsp') {\n          // Since the very first nal unit is expected to be an AUD\n          // only push to the frames array when currentFrame is not empty\n          if (currentFrame.length) {\n            currentFrame.duration = currentNal.dts - currentFrame.dts; // TODO added for LHLS, make sure this is OK\n\n            frames.byteLength += currentFrame.byteLength;\n            frames.nalCount += currentFrame.length;\n            frames.duration += currentFrame.duration;\n            frames.push(currentFrame);\n          }\n\n          currentFrame = [currentNal];\n          currentFrame.byteLength = currentNal.data.byteLength;\n          currentFrame.pts = currentNal.pts;\n          currentFrame.dts = currentNal.dts;\n        } else {\n          // Specifically flag key frames for ease of use later\n          if (currentNal.nalUnitType === 'slice_layer_without_partitioning_rbsp_idr') {\n            currentFrame.keyFrame = true;\n          }\n\n          currentFrame.duration = currentNal.dts - currentFrame.dts;\n          currentFrame.byteLength += currentNal.data.byteLength;\n          currentFrame.push(currentNal);\n        }\n      } // For the last frame, use the duration of the previous frame if we\n      // have nothing better to go on\n\n\n      if (frames.length && (!currentFrame.duration || currentFrame.duration <= 0)) {\n        currentFrame.duration = frames[frames.length - 1].duration;\n      } // Push the final frame\n      // TODO added for LHLS, make sure this is OK\n\n\n      frames.byteLength += currentFrame.byteLength;\n      frames.nalCount += currentFrame.length;\n      frames.duration += currentFrame.duration;\n      frames.push(currentFrame);\n      return frames;\n    }; // Convert an array of frames into an array of Gop with each Gop being composed\n    // of the frames that make up that Gop\n    // Also keep track of cummulative data about the Gop from the frames such as the\n    // Gop duration, starting pts, etc.\n\n\n    var groupFramesIntoGops = function groupFramesIntoGops(frames) {\n      var i,\n          currentFrame,\n          currentGop = [],\n          gops = []; // We must pre-set some of the values on the Gop since we\n      // keep running totals of these values\n\n      currentGop.byteLength = 0;\n      currentGop.nalCount = 0;\n      currentGop.duration = 0;\n      currentGop.pts = frames[0].pts;\n      currentGop.dts = frames[0].dts; // store some metadata about all the Gops\n\n      gops.byteLength = 0;\n      gops.nalCount = 0;\n      gops.duration = 0;\n      gops.pts = frames[0].pts;\n      gops.dts = frames[0].dts;\n\n      for (i = 0; i < frames.length; i++) {\n        currentFrame = frames[i];\n\n        if (currentFrame.keyFrame) {\n          // Since the very first frame is expected to be an keyframe\n          // only push to the gops array when currentGop is not empty\n          if (currentGop.length) {\n            gops.push(currentGop);\n            gops.byteLength += currentGop.byteLength;\n            gops.nalCount += currentGop.nalCount;\n            gops.duration += currentGop.duration;\n          }\n\n          currentGop = [currentFrame];\n          currentGop.nalCount = currentFrame.length;\n          currentGop.byteLength = currentFrame.byteLength;\n          currentGop.pts = currentFrame.pts;\n          currentGop.dts = currentFrame.dts;\n          currentGop.duration = currentFrame.duration;\n        } else {\n          currentGop.duration += currentFrame.duration;\n          currentGop.nalCount += currentFrame.length;\n          currentGop.byteLength += currentFrame.byteLength;\n          currentGop.push(currentFrame);\n        }\n      }\n\n      if (gops.length && currentGop.duration <= 0) {\n        currentGop.duration = gops[gops.length - 1].duration;\n      }\n\n      gops.byteLength += currentGop.byteLength;\n      gops.nalCount += currentGop.nalCount;\n      gops.duration += currentGop.duration; // push the final Gop\n\n      gops.push(currentGop);\n      return gops;\n    };\n    /*\n     * Search for the first keyframe in the GOPs and throw away all frames\n     * until that keyframe. Then extend the duration of the pulled keyframe\n     * and pull the PTS and DTS of the keyframe so that it covers the time\n     * range of the frames that were disposed.\n     *\n     * @param {Array} gops video GOPs\n     * @returns {Array} modified video GOPs\n     */\n\n\n    var extendFirstKeyFrame = function extendFirstKeyFrame(gops) {\n      var currentGop;\n\n      if (!gops[0][0].keyFrame && gops.length > 1) {\n        // Remove the first GOP\n        currentGop = gops.shift();\n        gops.byteLength -= currentGop.byteLength;\n        gops.nalCount -= currentGop.nalCount; // Extend the first frame of what is now the\n        // first gop to cover the time period of the\n        // frames we just removed\n\n        gops[0][0].dts = currentGop.dts;\n        gops[0][0].pts = currentGop.pts;\n        gops[0][0].duration += currentGop.duration;\n      }\n\n      return gops;\n    };\n    /**\n     * Default sample object\n     * see ISO/IEC 14496-12:2012, section 8.6.4.3\n     */\n\n\n    var createDefaultSample = function createDefaultSample() {\n      return {\n        size: 0,\n        flags: {\n          isLeading: 0,\n          dependsOn: 1,\n          isDependedOn: 0,\n          hasRedundancy: 0,\n          degradationPriority: 0,\n          isNonSyncSample: 1\n        }\n      };\n    };\n    /*\n     * Collates information from a video frame into an object for eventual\n     * entry into an MP4 sample table.\n     *\n     * @param {Object} frame the video frame\n     * @param {Number} dataOffset the byte offset to position the sample\n     * @return {Object} object containing sample table info for a frame\n     */\n\n\n    var sampleForFrame = function sampleForFrame(frame, dataOffset) {\n      var sample = createDefaultSample();\n      sample.dataOffset = dataOffset;\n      sample.compositionTimeOffset = frame.pts - frame.dts;\n      sample.duration = frame.duration;\n      sample.size = 4 * frame.length; // Space for nal unit size\n\n      sample.size += frame.byteLength;\n\n      if (frame.keyFrame) {\n        sample.flags.dependsOn = 2;\n        sample.flags.isNonSyncSample = 0;\n      }\n\n      return sample;\n    }; // generate the track's sample table from an array of gops\n\n\n    var generateSampleTable$1 = function generateSampleTable(gops, baseDataOffset) {\n      var h,\n          i,\n          sample,\n          currentGop,\n          currentFrame,\n          dataOffset = baseDataOffset || 0,\n          samples = [];\n\n      for (h = 0; h < gops.length; h++) {\n        currentGop = gops[h];\n\n        for (i = 0; i < currentGop.length; i++) {\n          currentFrame = currentGop[i];\n          sample = sampleForFrame(currentFrame, dataOffset);\n          dataOffset += sample.size;\n          samples.push(sample);\n        }\n      }\n\n      return samples;\n    }; // generate the track's raw mdat data from an array of gops\n\n\n    var concatenateNalData = function concatenateNalData(gops) {\n      var h,\n          i,\n          j,\n          currentGop,\n          currentFrame,\n          currentNal,\n          dataOffset = 0,\n          nalsByteLength = gops.byteLength,\n          numberOfNals = gops.nalCount,\n          totalByteLength = nalsByteLength + 4 * numberOfNals,\n          data = new Uint8Array(totalByteLength),\n          view = new DataView(data.buffer); // For each Gop..\n\n      for (h = 0; h < gops.length; h++) {\n        currentGop = gops[h]; // For each Frame..\n\n        for (i = 0; i < currentGop.length; i++) {\n          currentFrame = currentGop[i]; // For each NAL..\n\n          for (j = 0; j < currentFrame.length; j++) {\n            currentNal = currentFrame[j];\n            view.setUint32(dataOffset, currentNal.data.byteLength);\n            dataOffset += 4;\n            data.set(currentNal.data, dataOffset);\n            dataOffset += currentNal.data.byteLength;\n          }\n        }\n      }\n\n      return data;\n    }; // generate the track's sample table from a frame\n\n\n    var generateSampleTableForFrame = function generateSampleTableForFrame(frame, baseDataOffset) {\n      var sample,\n          dataOffset = baseDataOffset || 0,\n          samples = [];\n      sample = sampleForFrame(frame, dataOffset);\n      samples.push(sample);\n      return samples;\n    }; // generate the track's raw mdat data from a frame\n\n\n    var concatenateNalDataForFrame = function concatenateNalDataForFrame(frame) {\n      var i,\n          currentNal,\n          dataOffset = 0,\n          nalsByteLength = frame.byteLength,\n          numberOfNals = frame.length,\n          totalByteLength = nalsByteLength + 4 * numberOfNals,\n          data = new Uint8Array(totalByteLength),\n          view = new DataView(data.buffer); // For each NAL..\n\n      for (i = 0; i < frame.length; i++) {\n        currentNal = frame[i];\n        view.setUint32(dataOffset, currentNal.data.byteLength);\n        dataOffset += 4;\n        data.set(currentNal.data, dataOffset);\n        dataOffset += currentNal.data.byteLength;\n      }\n\n      return data;\n    };\n\n    var frameUtils = {\n      groupNalsIntoFrames: groupNalsIntoFrames,\n      groupFramesIntoGops: groupFramesIntoGops,\n      extendFirstKeyFrame: extendFirstKeyFrame,\n      generateSampleTable: generateSampleTable$1,\n      concatenateNalData: concatenateNalData,\n      generateSampleTableForFrame: generateSampleTableForFrame,\n      concatenateNalDataForFrame: concatenateNalDataForFrame\n    };\n    /**\n     * mux.js\n     *\n     * Copyright (c) Brightcove\n     * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE\n     */\n\n    var highPrefix = [33, 16, 5, 32, 164, 27];\n    var lowPrefix = [33, 65, 108, 84, 1, 2, 4, 8, 168, 2, 4, 8, 17, 191, 252];\n\n    var zeroFill = function zeroFill(count) {\n      var a = [];\n\n      while (count--) {\n        a.push(0);\n      }\n\n      return a;\n    };\n\n    var makeTable = function makeTable(metaTable) {\n      return Object.keys(metaTable).reduce(function (obj, key) {\n        obj[key] = new Uint8Array(metaTable[key].reduce(function (arr, part) {\n          return arr.concat(part);\n        }, []));\n        return obj;\n      }, {});\n    };\n\n    var silence;\n\n    var silence_1 = function silence_1() {\n      if (!silence) {\n        // Frames-of-silence to use for filling in missing AAC frames\n        var coneOfSilence = {\n          96000: [highPrefix, [227, 64], zeroFill(154), [56]],\n          88200: [highPrefix, [231], zeroFill(170), [56]],\n          64000: [highPrefix, [248, 192], zeroFill(240), [56]],\n          48000: [highPrefix, [255, 192], zeroFill(268), [55, 148, 128], zeroFill(54), [112]],\n          44100: [highPrefix, [255, 192], zeroFill(268), [55, 163, 128], zeroFill(84), [112]],\n          32000: [highPrefix, [255, 192], zeroFill(268), [55, 234], zeroFill(226), [112]],\n          24000: [highPrefix, [255, 192], zeroFill(268), [55, 255, 128], zeroFill(268), [111, 112], zeroFill(126), [224]],\n          16000: [highPrefix, [255, 192], zeroFill(268), [55, 255, 128], zeroFill(268), [111, 255], zeroFill(269), [223, 108], zeroFill(195), [1, 192]],\n          12000: [lowPrefix, zeroFill(268), [3, 127, 248], zeroFill(268), [6, 255, 240], zeroFill(268), [13, 255, 224], zeroFill(268), [27, 253, 128], zeroFill(259), [56]],\n          11025: [lowPrefix, zeroFill(268), [3, 127, 248], zeroFill(268), [6, 255, 240], zeroFill(268), [13, 255, 224], zeroFill(268), [27, 255, 192], zeroFill(268), [55, 175, 128], zeroFill(108), [112]],\n          8000: [lowPrefix, zeroFill(268), [3, 121, 16], zeroFill(47), [7]]\n        };\n        silence = makeTable(coneOfSilence);\n      }\n\n      return silence;\n    };\n    /**\n     * mux.js\n     *\n     * Copyright (c) Brightcove\n     * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE\n     */\n\n\n    var ONE_SECOND_IN_TS$4 = 90000,\n        // 90kHz clock\n    secondsToVideoTs,\n        secondsToAudioTs,\n        videoTsToSeconds,\n        audioTsToSeconds,\n        audioTsToVideoTs,\n        videoTsToAudioTs,\n        metadataTsToSeconds;\n\n    secondsToVideoTs = function secondsToVideoTs(seconds) {\n      return seconds * ONE_SECOND_IN_TS$4;\n    };\n\n    secondsToAudioTs = function secondsToAudioTs(seconds, sampleRate) {\n      return seconds * sampleRate;\n    };\n\n    videoTsToSeconds = function videoTsToSeconds(timestamp) {\n      return timestamp / ONE_SECOND_IN_TS$4;\n    };\n\n    audioTsToSeconds = function audioTsToSeconds(timestamp, sampleRate) {\n      return timestamp / sampleRate;\n    };\n\n    audioTsToVideoTs = function audioTsToVideoTs(timestamp, sampleRate) {\n      return secondsToVideoTs(audioTsToSeconds(timestamp, sampleRate));\n    };\n\n    videoTsToAudioTs = function videoTsToAudioTs(timestamp, sampleRate) {\n      return secondsToAudioTs(videoTsToSeconds(timestamp), sampleRate);\n    };\n    /**\n     * Adjust ID3 tag or caption timing information by the timeline pts values\n     * (if keepOriginalTimestamps is false) and convert to seconds\n     */\n\n\n    metadataTsToSeconds = function metadataTsToSeconds(timestamp, timelineStartPts, keepOriginalTimestamps) {\n      return videoTsToSeconds(keepOriginalTimestamps ? timestamp : timestamp - timelineStartPts);\n    };\n\n    var clock = {\n      ONE_SECOND_IN_TS: ONE_SECOND_IN_TS$4,\n      secondsToVideoTs: secondsToVideoTs,\n      secondsToAudioTs: secondsToAudioTs,\n      videoTsToSeconds: videoTsToSeconds,\n      audioTsToSeconds: audioTsToSeconds,\n      audioTsToVideoTs: audioTsToVideoTs,\n      videoTsToAudioTs: videoTsToAudioTs,\n      metadataTsToSeconds: metadataTsToSeconds\n    };\n    /**\n     * mux.js\n     *\n     * Copyright (c) Brightcove\n     * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE\n     */\n\n    /**\n     * Sum the `byteLength` properties of the data in each AAC frame\n     */\n\n    var sumFrameByteLengths = function sumFrameByteLengths(array) {\n      var i,\n          currentObj,\n          sum = 0; // sum the byteLength's all each nal unit in the frame\n\n      for (i = 0; i < array.length; i++) {\n        currentObj = array[i];\n        sum += currentObj.data.byteLength;\n      }\n\n      return sum;\n    }; // Possibly pad (prefix) the audio track with silence if appending this track\n    // would lead to the introduction of a gap in the audio buffer\n\n\n    var prefixWithSilence = function prefixWithSilence(track, frames, audioAppendStartTs, videoBaseMediaDecodeTime) {\n      var baseMediaDecodeTimeTs,\n          frameDuration = 0,\n          audioGapDuration = 0,\n          audioFillFrameCount = 0,\n          audioFillDuration = 0,\n          silentFrame,\n          i,\n          firstFrame;\n\n      if (!frames.length) {\n        return;\n      }\n\n      baseMediaDecodeTimeTs = clock.audioTsToVideoTs(track.baseMediaDecodeTime, track.samplerate); // determine frame clock duration based on sample rate, round up to avoid overfills\n\n      frameDuration = Math.ceil(clock.ONE_SECOND_IN_TS / (track.samplerate / 1024));\n\n      if (audioAppendStartTs && videoBaseMediaDecodeTime) {\n        // insert the shortest possible amount (audio gap or audio to video gap)\n        audioGapDuration = baseMediaDecodeTimeTs - Math.max(audioAppendStartTs, videoBaseMediaDecodeTime); // number of full frames in the audio gap\n\n        audioFillFrameCount = Math.floor(audioGapDuration / frameDuration);\n        audioFillDuration = audioFillFrameCount * frameDuration;\n      } // don't attempt to fill gaps smaller than a single frame or larger\n      // than a half second\n\n\n      if (audioFillFrameCount < 1 || audioFillDuration > clock.ONE_SECOND_IN_TS / 2) {\n        return;\n      }\n\n      silentFrame = silence_1()[track.samplerate];\n\n      if (!silentFrame) {\n        // we don't have a silent frame pregenerated for the sample rate, so use a frame\n        // from the content instead\n        silentFrame = frames[0].data;\n      }\n\n      for (i = 0; i < audioFillFrameCount; i++) {\n        firstFrame = frames[0];\n        frames.splice(0, 0, {\n          data: silentFrame,\n          dts: firstFrame.dts - frameDuration,\n          pts: firstFrame.pts - frameDuration\n        });\n      }\n\n      track.baseMediaDecodeTime -= Math.floor(clock.videoTsToAudioTs(audioFillDuration, track.samplerate));\n      return audioFillDuration;\n    }; // If the audio segment extends before the earliest allowed dts\n    // value, remove AAC frames until starts at or after the earliest\n    // allowed DTS so that we don't end up with a negative baseMedia-\n    // DecodeTime for the audio track\n\n\n    var trimAdtsFramesByEarliestDts = function trimAdtsFramesByEarliestDts(adtsFrames, track, earliestAllowedDts) {\n      if (track.minSegmentDts >= earliestAllowedDts) {\n        return adtsFrames;\n      } // We will need to recalculate the earliest segment Dts\n\n\n      track.minSegmentDts = Infinity;\n      return adtsFrames.filter(function (currentFrame) {\n        // If this is an allowed frame, keep it and record it's Dts\n        if (currentFrame.dts >= earliestAllowedDts) {\n          track.minSegmentDts = Math.min(track.minSegmentDts, currentFrame.dts);\n          track.minSegmentPts = track.minSegmentDts;\n          return true;\n        } // Otherwise, discard it\n\n\n        return false;\n      });\n    }; // generate the track's raw mdat data from an array of frames\n\n\n    var generateSampleTable = function generateSampleTable(frames) {\n      var i,\n          currentFrame,\n          samples = [];\n\n      for (i = 0; i < frames.length; i++) {\n        currentFrame = frames[i];\n        samples.push({\n          size: currentFrame.data.byteLength,\n          duration: 1024 // For AAC audio, all samples contain 1024 samples\n\n        });\n      }\n\n      return samples;\n    }; // generate the track's sample table from an array of frames\n\n\n    var concatenateFrameData = function concatenateFrameData(frames) {\n      var i,\n          currentFrame,\n          dataOffset = 0,\n          data = new Uint8Array(sumFrameByteLengths(frames));\n\n      for (i = 0; i < frames.length; i++) {\n        currentFrame = frames[i];\n        data.set(currentFrame.data, dataOffset);\n        dataOffset += currentFrame.data.byteLength;\n      }\n\n      return data;\n    };\n\n    var audioFrameUtils = {\n      prefixWithSilence: prefixWithSilence,\n      trimAdtsFramesByEarliestDts: trimAdtsFramesByEarliestDts,\n      generateSampleTable: generateSampleTable,\n      concatenateFrameData: concatenateFrameData\n    };\n    /**\n     * mux.js\n     *\n     * Copyright (c) Brightcove\n     * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE\n     */\n\n    var ONE_SECOND_IN_TS$3 = clock.ONE_SECOND_IN_TS;\n    /**\n     * Store information about the start and end of the track and the\n     * duration for each frame/sample we process in order to calculate\n     * the baseMediaDecodeTime\n     */\n\n    var collectDtsInfo = function collectDtsInfo(track, data) {\n      if (typeof data.pts === 'number') {\n        if (track.timelineStartInfo.pts === undefined) {\n          track.timelineStartInfo.pts = data.pts;\n        }\n\n        if (track.minSegmentPts === undefined) {\n          track.minSegmentPts = data.pts;\n        } else {\n          track.minSegmentPts = Math.min(track.minSegmentPts, data.pts);\n        }\n\n        if (track.maxSegmentPts === undefined) {\n          track.maxSegmentPts = data.pts;\n        } else {\n          track.maxSegmentPts = Math.max(track.maxSegmentPts, data.pts);\n        }\n      }\n\n      if (typeof data.dts === 'number') {\n        if (track.timelineStartInfo.dts === undefined) {\n          track.timelineStartInfo.dts = data.dts;\n        }\n\n        if (track.minSegmentDts === undefined) {\n          track.minSegmentDts = data.dts;\n        } else {\n          track.minSegmentDts = Math.min(track.minSegmentDts, data.dts);\n        }\n\n        if (track.maxSegmentDts === undefined) {\n          track.maxSegmentDts = data.dts;\n        } else {\n          track.maxSegmentDts = Math.max(track.maxSegmentDts, data.dts);\n        }\n      }\n    };\n    /**\n     * Clear values used to calculate the baseMediaDecodeTime between\n     * tracks\n     */\n\n\n    var clearDtsInfo = function clearDtsInfo(track) {\n      delete track.minSegmentDts;\n      delete track.maxSegmentDts;\n      delete track.minSegmentPts;\n      delete track.maxSegmentPts;\n    };\n    /**\n     * Calculate the track's baseMediaDecodeTime based on the earliest\n     * DTS the transmuxer has ever seen and the minimum DTS for the\n     * current track\n     * @param track {object} track metadata configuration\n     * @param keepOriginalTimestamps {boolean} If true, keep the timestamps\n     *        in the source; false to adjust the first segment to start at 0.\n     */\n\n\n    var calculateTrackBaseMediaDecodeTime = function calculateTrackBaseMediaDecodeTime(track, keepOriginalTimestamps) {\n      var baseMediaDecodeTime,\n          scale,\n          minSegmentDts = track.minSegmentDts; // Optionally adjust the time so the first segment starts at zero.\n\n      if (!keepOriginalTimestamps) {\n        minSegmentDts -= track.timelineStartInfo.dts;\n      } // track.timelineStartInfo.baseMediaDecodeTime is the location, in time, where\n      // we want the start of the first segment to be placed\n\n\n      baseMediaDecodeTime = track.timelineStartInfo.baseMediaDecodeTime; // Add to that the distance this segment is from the very first\n\n      baseMediaDecodeTime += minSegmentDts; // baseMediaDecodeTime must not become negative\n\n      baseMediaDecodeTime = Math.max(0, baseMediaDecodeTime);\n\n      if (track.type === 'audio') {\n        // Audio has a different clock equal to the sampling_rate so we need to\n        // scale the PTS values into the clock rate of the track\n        scale = track.samplerate / ONE_SECOND_IN_TS$3;\n        baseMediaDecodeTime *= scale;\n        baseMediaDecodeTime = Math.floor(baseMediaDecodeTime);\n      }\n\n      return baseMediaDecodeTime;\n    };\n\n    var trackDecodeInfo = {\n      clearDtsInfo: clearDtsInfo,\n      calculateTrackBaseMediaDecodeTime: calculateTrackBaseMediaDecodeTime,\n      collectDtsInfo: collectDtsInfo\n    };\n    /**\n     * mux.js\n     *\n     * Copyright (c) Brightcove\n     * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE\n     *\n     * Reads in-band caption information from a video elementary\n     * stream. Captions must follow the CEA-708 standard for injection\n     * into an MPEG-2 transport streams.\n     * @see https://en.wikipedia.org/wiki/CEA-708\n     * @see https://www.gpo.gov/fdsys/pkg/CFR-2007-title47-vol1/pdf/CFR-2007-title47-vol1-sec15-119.pdf\n     */\n    // payload type field to indicate how they are to be\n    // interpreted. CEAS-708 caption content is always transmitted with\n    // payload type 0x04.\n\n    var USER_DATA_REGISTERED_ITU_T_T35 = 4,\n        RBSP_TRAILING_BITS = 128;\n    /**\n      * Parse a supplemental enhancement information (SEI) NAL unit.\n      * Stops parsing once a message of type ITU T T35 has been found.\n      *\n      * @param bytes {Uint8Array} the bytes of a SEI NAL unit\n      * @return {object} the parsed SEI payload\n      * @see Rec. ITU-T H.264, 7.3.2.3.1\n      */\n\n    var parseSei = function parseSei(bytes) {\n      var i = 0,\n          result = {\n        payloadType: -1,\n        payloadSize: 0\n      },\n          payloadType = 0,\n          payloadSize = 0; // go through the sei_rbsp parsing each each individual sei_message\n\n      while (i < bytes.byteLength) {\n        // stop once we have hit the end of the sei_rbsp\n        if (bytes[i] === RBSP_TRAILING_BITS) {\n          break;\n        } // Parse payload type\n\n\n        while (bytes[i] === 0xFF) {\n          payloadType += 255;\n          i++;\n        }\n\n        payloadType += bytes[i++]; // Parse payload size\n\n        while (bytes[i] === 0xFF) {\n          payloadSize += 255;\n          i++;\n        }\n\n        payloadSize += bytes[i++]; // this sei_message is a 608/708 caption so save it and break\n        // there can only ever be one caption message in a frame's sei\n\n        if (!result.payload && payloadType === USER_DATA_REGISTERED_ITU_T_T35) {\n          var userIdentifier = String.fromCharCode(bytes[i + 3], bytes[i + 4], bytes[i + 5], bytes[i + 6]);\n\n          if (userIdentifier === 'GA94') {\n            result.payloadType = payloadType;\n            result.payloadSize = payloadSize;\n            result.payload = bytes.subarray(i, i + payloadSize);\n            break;\n          } else {\n            result.payload = void 0;\n          }\n        } // skip the payload and parse the next message\n\n\n        i += payloadSize;\n        payloadType = 0;\n        payloadSize = 0;\n      }\n\n      return result;\n    }; // see ANSI/SCTE 128-1 (2013), section 8.1\n\n\n    var parseUserData = function parseUserData(sei) {\n      // itu_t_t35_contry_code must be 181 (United States) for\n      // captions\n      if (sei.payload[0] !== 181) {\n        return null;\n      } // itu_t_t35_provider_code should be 49 (ATSC) for captions\n\n\n      if ((sei.payload[1] << 8 | sei.payload[2]) !== 49) {\n        return null;\n      } // the user_identifier should be \"GA94\" to indicate ATSC1 data\n\n\n      if (String.fromCharCode(sei.payload[3], sei.payload[4], sei.payload[5], sei.payload[6]) !== 'GA94') {\n        return null;\n      } // finally, user_data_type_code should be 0x03 for caption data\n\n\n      if (sei.payload[7] !== 0x03) {\n        return null;\n      } // return the user_data_type_structure and strip the trailing\n      // marker bits\n\n\n      return sei.payload.subarray(8, sei.payload.length - 1);\n    }; // see CEA-708-D, section 4.4\n\n\n    var parseCaptionPackets = function parseCaptionPackets(pts, userData) {\n      var results = [],\n          i,\n          count,\n          offset,\n          data; // if this is just filler, return immediately\n\n      if (!(userData[0] & 0x40)) {\n        return results;\n      } // parse out the cc_data_1 and cc_data_2 fields\n\n\n      count = userData[0] & 0x1f;\n\n      for (i = 0; i < count; i++) {\n        offset = i * 3;\n        data = {\n          type: userData[offset + 2] & 0x03,\n          pts: pts\n        }; // capture cc data when cc_valid is 1\n\n        if (userData[offset + 2] & 0x04) {\n          data.ccData = userData[offset + 3] << 8 | userData[offset + 4];\n          results.push(data);\n        }\n      }\n\n      return results;\n    };\n\n    var discardEmulationPreventionBytes$1 = function discardEmulationPreventionBytes(data) {\n      var length = data.byteLength,\n          emulationPreventionBytesPositions = [],\n          i = 1,\n          newLength,\n          newData; // Find all `Emulation Prevention Bytes`\n\n      while (i < length - 2) {\n        if (data[i] === 0 && data[i + 1] === 0 && data[i + 2] === 0x03) {\n          emulationPreventionBytesPositions.push(i + 2);\n          i += 2;\n        } else {\n          i++;\n        }\n      } // If no Emulation Prevention Bytes were found just return the original\n      // array\n\n\n      if (emulationPreventionBytesPositions.length === 0) {\n        return data;\n      } // Create a new array to hold the NAL unit data\n\n\n      newLength = length - emulationPreventionBytesPositions.length;\n      newData = new Uint8Array(newLength);\n      var sourceIndex = 0;\n\n      for (i = 0; i < newLength; sourceIndex++, i++) {\n        if (sourceIndex === emulationPreventionBytesPositions[0]) {\n          // Skip this byte\n          sourceIndex++; // Remove this position index\n\n          emulationPreventionBytesPositions.shift();\n        }\n\n        newData[i] = data[sourceIndex];\n      }\n\n      return newData;\n    }; // exports\n\n\n    var captionPacketParser = {\n      parseSei: parseSei,\n      parseUserData: parseUserData,\n      parseCaptionPackets: parseCaptionPackets,\n      discardEmulationPreventionBytes: discardEmulationPreventionBytes$1,\n      USER_DATA_REGISTERED_ITU_T_T35: USER_DATA_REGISTERED_ITU_T_T35\n    }; // Link To Transport\n    // -----------------\n\n    var CaptionStream$1 = function CaptionStream(options) {\n      options = options || {};\n      CaptionStream.prototype.init.call(this); // parse708captions flag, default to true\n\n      this.parse708captions_ = typeof options.parse708captions === 'boolean' ? options.parse708captions : true;\n      this.captionPackets_ = [];\n      this.ccStreams_ = [new Cea608Stream(0, 0), // eslint-disable-line no-use-before-define\n      new Cea608Stream(0, 1), // eslint-disable-line no-use-before-define\n      new Cea608Stream(1, 0), // eslint-disable-line no-use-before-define\n      new Cea608Stream(1, 1) // eslint-disable-line no-use-before-define\n      ];\n\n      if (this.parse708captions_) {\n        this.cc708Stream_ = new Cea708Stream({\n          captionServices: options.captionServices\n        }); // eslint-disable-line no-use-before-define\n      }\n\n      this.reset(); // forward data and done events from CCs to this CaptionStream\n\n      this.ccStreams_.forEach(function (cc) {\n        cc.on('data', this.trigger.bind(this, 'data'));\n        cc.on('partialdone', this.trigger.bind(this, 'partialdone'));\n        cc.on('done', this.trigger.bind(this, 'done'));\n      }, this);\n\n      if (this.parse708captions_) {\n        this.cc708Stream_.on('data', this.trigger.bind(this, 'data'));\n        this.cc708Stream_.on('partialdone', this.trigger.bind(this, 'partialdone'));\n        this.cc708Stream_.on('done', this.trigger.bind(this, 'done'));\n      }\n    };\n\n    CaptionStream$1.prototype = new stream();\n\n    CaptionStream$1.prototype.push = function (event) {\n      var sei, userData, newCaptionPackets; // only examine SEI NALs\n\n      if (event.nalUnitType !== 'sei_rbsp') {\n        return;\n      } // parse the sei\n\n\n      sei = captionPacketParser.parseSei(event.escapedRBSP); // no payload data, skip\n\n      if (!sei.payload) {\n        return;\n      } // ignore everything but user_data_registered_itu_t_t35\n\n\n      if (sei.payloadType !== captionPacketParser.USER_DATA_REGISTERED_ITU_T_T35) {\n        return;\n      } // parse out the user data payload\n\n\n      userData = captionPacketParser.parseUserData(sei); // ignore unrecognized userData\n\n      if (!userData) {\n        return;\n      } // Sometimes, the same segment # will be downloaded twice. To stop the\n      // caption data from being processed twice, we track the latest dts we've\n      // received and ignore everything with a dts before that. However, since\n      // data for a specific dts can be split across packets on either side of\n      // a segment boundary, we need to make sure we *don't* ignore the packets\n      // from the *next* segment that have dts === this.latestDts_. By constantly\n      // tracking the number of packets received with dts === this.latestDts_, we\n      // know how many should be ignored once we start receiving duplicates.\n\n\n      if (event.dts < this.latestDts_) {\n        // We've started getting older data, so set the flag.\n        this.ignoreNextEqualDts_ = true;\n        return;\n      } else if (event.dts === this.latestDts_ && this.ignoreNextEqualDts_) {\n        this.numSameDts_--;\n\n        if (!this.numSameDts_) {\n          // We've received the last duplicate packet, time to start processing again\n          this.ignoreNextEqualDts_ = false;\n        }\n\n        return;\n      } // parse out CC data packets and save them for later\n\n\n      newCaptionPackets = captionPacketParser.parseCaptionPackets(event.pts, userData);\n      this.captionPackets_ = this.captionPackets_.concat(newCaptionPackets);\n\n      if (this.latestDts_ !== event.dts) {\n        this.numSameDts_ = 0;\n      }\n\n      this.numSameDts_++;\n      this.latestDts_ = event.dts;\n    };\n\n    CaptionStream$1.prototype.flushCCStreams = function (flushType) {\n      this.ccStreams_.forEach(function (cc) {\n        return flushType === 'flush' ? cc.flush() : cc.partialFlush();\n      }, this);\n    };\n\n    CaptionStream$1.prototype.flushStream = function (flushType) {\n      // make sure we actually parsed captions before proceeding\n      if (!this.captionPackets_.length) {\n        this.flushCCStreams(flushType);\n        return;\n      } // In Chrome, the Array#sort function is not stable so add a\n      // presortIndex that we can use to ensure we get a stable-sort\n\n\n      this.captionPackets_.forEach(function (elem, idx) {\n        elem.presortIndex = idx;\n      }); // sort caption byte-pairs based on their PTS values\n\n      this.captionPackets_.sort(function (a, b) {\n        if (a.pts === b.pts) {\n          return a.presortIndex - b.presortIndex;\n        }\n\n        return a.pts - b.pts;\n      });\n      this.captionPackets_.forEach(function (packet) {\n        if (packet.type < 2) {\n          // Dispatch packet to the right Cea608Stream\n          this.dispatchCea608Packet(packet);\n        } else {\n          // Dispatch packet to the Cea708Stream\n          this.dispatchCea708Packet(packet);\n        }\n      }, this);\n      this.captionPackets_.length = 0;\n      this.flushCCStreams(flushType);\n    };\n\n    CaptionStream$1.prototype.flush = function () {\n      return this.flushStream('flush');\n    }; // Only called if handling partial data\n\n\n    CaptionStream$1.prototype.partialFlush = function () {\n      return this.flushStream('partialFlush');\n    };\n\n    CaptionStream$1.prototype.reset = function () {\n      this.latestDts_ = null;\n      this.ignoreNextEqualDts_ = false;\n      this.numSameDts_ = 0;\n      this.activeCea608Channel_ = [null, null];\n      this.ccStreams_.forEach(function (ccStream) {\n        ccStream.reset();\n      });\n    }; // From the CEA-608 spec:\n\n    /*\n     * When XDS sub-packets are interleaved with other services, the end of each sub-packet shall be followed\n     * by a control pair to change to a different service. When any of the control codes from 0x10 to 0x1F is\n     * used to begin a control code pair, it indicates the return to captioning or Text data. The control code pair\n     * and subsequent data should then be processed according to the FCC rules. It may be necessary for the\n     * line 21 data encoder to automatically insert a control code pair (i.e. RCL, RU2, RU3, RU4, RDC, or RTD)\n     * to switch to captioning or Text.\n    */\n    // With that in mind, we ignore any data between an XDS control code and a\n    // subsequent closed-captioning control code.\n\n\n    CaptionStream$1.prototype.dispatchCea608Packet = function (packet) {\n      // NOTE: packet.type is the CEA608 field\n      if (this.setsTextOrXDSActive(packet)) {\n        this.activeCea608Channel_[packet.type] = null;\n      } else if (this.setsChannel1Active(packet)) {\n        this.activeCea608Channel_[packet.type] = 0;\n      } else if (this.setsChannel2Active(packet)) {\n        this.activeCea608Channel_[packet.type] = 1;\n      }\n\n      if (this.activeCea608Channel_[packet.type] === null) {\n        // If we haven't received anything to set the active channel, or the\n        // packets are Text/XDS data, discard the data; we don't want jumbled\n        // captions\n        return;\n      }\n\n      this.ccStreams_[(packet.type << 1) + this.activeCea608Channel_[packet.type]].push(packet);\n    };\n\n    CaptionStream$1.prototype.setsChannel1Active = function (packet) {\n      return (packet.ccData & 0x7800) === 0x1000;\n    };\n\n    CaptionStream$1.prototype.setsChannel2Active = function (packet) {\n      return (packet.ccData & 0x7800) === 0x1800;\n    };\n\n    CaptionStream$1.prototype.setsTextOrXDSActive = function (packet) {\n      return (packet.ccData & 0x7100) === 0x0100 || (packet.ccData & 0x78fe) === 0x102a || (packet.ccData & 0x78fe) === 0x182a;\n    };\n\n    CaptionStream$1.prototype.dispatchCea708Packet = function (packet) {\n      if (this.parse708captions_) {\n        this.cc708Stream_.push(packet);\n      }\n    }; // ----------------------\n    // Session to Application\n    // ----------------------\n    // This hash maps special and extended character codes to their\n    // proper Unicode equivalent. The first one-byte key is just a\n    // non-standard character code. The two-byte keys that follow are\n    // the extended CEA708 character codes, along with the preceding\n    // 0x10 extended character byte to distinguish these codes from\n    // non-extended character codes. Every CEA708 character code that\n    // is not in this object maps directly to a standard unicode\n    // character code.\n    // The transparent space and non-breaking transparent space are\n    // technically not fully supported since there is no code to\n    // make them transparent, so they have normal non-transparent\n    // stand-ins.\n    // The special closed caption (CC) character isn't a standard\n    // unicode character, so a fairly similar unicode character was\n    // chosen in it's place.\n\n\n    var CHARACTER_TRANSLATION_708 = {\n      0x7f: 0x266a,\n      // ♪\n      0x1020: 0x20,\n      // Transparent Space\n      0x1021: 0xa0,\n      // Nob-breaking Transparent Space\n      0x1025: 0x2026,\n      // …\n      0x102a: 0x0160,\n      // Š\n      0x102c: 0x0152,\n      // Œ\n      0x1030: 0x2588,\n      // █\n      0x1031: 0x2018,\n      // ‘\n      0x1032: 0x2019,\n      // ’\n      0x1033: 0x201c,\n      // “\n      0x1034: 0x201d,\n      // ”\n      0x1035: 0x2022,\n      // •\n      0x1039: 0x2122,\n      // ™\n      0x103a: 0x0161,\n      // š\n      0x103c: 0x0153,\n      // œ\n      0x103d: 0x2120,\n      // ℠\n      0x103f: 0x0178,\n      // Ÿ\n      0x1076: 0x215b,\n      // ⅛\n      0x1077: 0x215c,\n      // ⅜\n      0x1078: 0x215d,\n      // ⅝\n      0x1079: 0x215e,\n      // ⅞\n      0x107a: 0x23d0,\n      // ⏐\n      0x107b: 0x23a4,\n      // ⎤\n      0x107c: 0x23a3,\n      // ⎣\n      0x107d: 0x23af,\n      // ⎯\n      0x107e: 0x23a6,\n      // ⎦\n      0x107f: 0x23a1,\n      // ⎡\n      0x10a0: 0x3138 // ㄸ (CC char)\n\n    };\n\n    var get708CharFromCode = function get708CharFromCode(code) {\n      var newCode = CHARACTER_TRANSLATION_708[code] || code;\n\n      if (code & 0x1000 && code === newCode) {\n        // Invalid extended code\n        return '';\n      }\n\n      return String.fromCharCode(newCode);\n    };\n\n    var within708TextBlock = function within708TextBlock(b) {\n      return 0x20 <= b && b <= 0x7f || 0xa0 <= b && b <= 0xff;\n    };\n\n    var Cea708Window = function Cea708Window(windowNum) {\n      this.windowNum = windowNum;\n      this.reset();\n    };\n\n    Cea708Window.prototype.reset = function () {\n      this.clearText();\n      this.pendingNewLine = false;\n      this.winAttr = {};\n      this.penAttr = {};\n      this.penLoc = {};\n      this.penColor = {}; // These default values are arbitrary,\n      // defineWindow will usually override them\n\n      this.visible = 0;\n      this.rowLock = 0;\n      this.columnLock = 0;\n      this.priority = 0;\n      this.relativePositioning = 0;\n      this.anchorVertical = 0;\n      this.anchorHorizontal = 0;\n      this.anchorPoint = 0;\n      this.rowCount = 1;\n      this.virtualRowCount = this.rowCount + 1;\n      this.columnCount = 41;\n      this.windowStyle = 0;\n      this.penStyle = 0;\n    };\n\n    Cea708Window.prototype.getText = function () {\n      return this.rows.join('\\n');\n    };\n\n    Cea708Window.prototype.clearText = function () {\n      this.rows = [''];\n      this.rowIdx = 0;\n    };\n\n    Cea708Window.prototype.newLine = function (pts) {\n      if (this.rows.length >= this.virtualRowCount && typeof this.beforeRowOverflow === 'function') {\n        this.beforeRowOverflow(pts);\n      }\n\n      if (this.rows.length > 0) {\n        this.rows.push('');\n        this.rowIdx++;\n      } // Show all virtual rows since there's no visible scrolling\n\n\n      while (this.rows.length > this.virtualRowCount) {\n        this.rows.shift();\n        this.rowIdx--;\n      }\n    };\n\n    Cea708Window.prototype.isEmpty = function () {\n      if (this.rows.length === 0) {\n        return true;\n      } else if (this.rows.length === 1) {\n        return this.rows[0] === '';\n      }\n\n      return false;\n    };\n\n    Cea708Window.prototype.addText = function (text) {\n      this.rows[this.rowIdx] += text;\n    };\n\n    Cea708Window.prototype.backspace = function () {\n      if (!this.isEmpty()) {\n        var row = this.rows[this.rowIdx];\n        this.rows[this.rowIdx] = row.substr(0, row.length - 1);\n      }\n    };\n\n    var Cea708Service = function Cea708Service(serviceNum, encoding, stream) {\n      this.serviceNum = serviceNum;\n      this.text = '';\n      this.currentWindow = new Cea708Window(-1);\n      this.windows = [];\n      this.stream = stream; // Try to setup a TextDecoder if an `encoding` value was provided\n\n      if (typeof encoding === 'string') {\n        this.createTextDecoder(encoding);\n      }\n    };\n    /**\n     * Initialize service windows\n     * Must be run before service use\n     *\n     * @param  {Integer}  pts               PTS value\n     * @param  {Function} beforeRowOverflow Function to execute before row overflow of a window\n     */\n\n\n    Cea708Service.prototype.init = function (pts, beforeRowOverflow) {\n      this.startPts = pts;\n\n      for (var win = 0; win < 8; win++) {\n        this.windows[win] = new Cea708Window(win);\n\n        if (typeof beforeRowOverflow === 'function') {\n          this.windows[win].beforeRowOverflow = beforeRowOverflow;\n        }\n      }\n    };\n    /**\n     * Set current window of service to be affected by commands\n     *\n     * @param  {Integer} windowNum Window number\n     */\n\n\n    Cea708Service.prototype.setCurrentWindow = function (windowNum) {\n      this.currentWindow = this.windows[windowNum];\n    };\n    /**\n     * Try to create a TextDecoder if it is natively supported\n     */\n\n\n    Cea708Service.prototype.createTextDecoder = function (encoding) {\n      if (typeof TextDecoder === 'undefined') {\n        this.stream.trigger('log', {\n          level: 'warn',\n          message: 'The `encoding` option is unsupported without TextDecoder support'\n        });\n      } else {\n        try {\n          this.textDecoder_ = new TextDecoder(encoding);\n        } catch (error) {\n          this.stream.trigger('log', {\n            level: 'warn',\n            message: 'TextDecoder could not be created with ' + encoding + ' encoding. ' + error\n          });\n        }\n      }\n    };\n\n    var Cea708Stream = function Cea708Stream(options) {\n      options = options || {};\n      Cea708Stream.prototype.init.call(this);\n      var self = this;\n      var captionServices = options.captionServices || {};\n      var captionServiceEncodings = {};\n      var serviceProps; // Get service encodings from captionServices option block\n\n      Object.keys(captionServices).forEach(function (serviceName) {\n        serviceProps = captionServices[serviceName];\n\n        if (/^SERVICE/.test(serviceName)) {\n          captionServiceEncodings[serviceName] = serviceProps.encoding;\n        }\n      });\n      this.serviceEncodings = captionServiceEncodings;\n      this.current708Packet = null;\n      this.services = {};\n\n      this.push = function (packet) {\n        if (packet.type === 3) {\n          // 708 packet start\n          self.new708Packet();\n          self.add708Bytes(packet);\n        } else {\n          if (self.current708Packet === null) {\n            // This should only happen at the start of a file if there's no packet start.\n            self.new708Packet();\n          }\n\n          self.add708Bytes(packet);\n        }\n      };\n    };\n\n    Cea708Stream.prototype = new stream();\n    /**\n     * Push current 708 packet, create new 708 packet.\n     */\n\n    Cea708Stream.prototype.new708Packet = function () {\n      if (this.current708Packet !== null) {\n        this.push708Packet();\n      }\n\n      this.current708Packet = {\n        data: [],\n        ptsVals: []\n      };\n    };\n    /**\n     * Add pts and both bytes from packet into current 708 packet.\n     */\n\n\n    Cea708Stream.prototype.add708Bytes = function (packet) {\n      var data = packet.ccData;\n      var byte0 = data >>> 8;\n      var byte1 = data & 0xff; // I would just keep a list of packets instead of bytes, but it isn't clear in the spec\n      // that service blocks will always line up with byte pairs.\n\n      this.current708Packet.ptsVals.push(packet.pts);\n      this.current708Packet.data.push(byte0);\n      this.current708Packet.data.push(byte1);\n    };\n    /**\n     * Parse completed 708 packet into service blocks and push each service block.\n     */\n\n\n    Cea708Stream.prototype.push708Packet = function () {\n      var packet708 = this.current708Packet;\n      var packetData = packet708.data;\n      var serviceNum = null;\n      var blockSize = null;\n      var i = 0;\n      var b = packetData[i++];\n      packet708.seq = b >> 6;\n      packet708.sizeCode = b & 0x3f; // 0b00111111;\n\n      for (; i < packetData.length; i++) {\n        b = packetData[i++];\n        serviceNum = b >> 5;\n        blockSize = b & 0x1f; // 0b00011111\n\n        if (serviceNum === 7 && blockSize > 0) {\n          // Extended service num\n          b = packetData[i++];\n          serviceNum = b;\n        }\n\n        this.pushServiceBlock(serviceNum, i, blockSize);\n\n        if (blockSize > 0) {\n          i += blockSize - 1;\n        }\n      }\n    };\n    /**\n     * Parse service block, execute commands, read text.\n     *\n     * Note: While many of these commands serve important purposes,\n     * many others just parse out the parameters or attributes, but\n     * nothing is done with them because this is not a full and complete\n     * implementation of the entire 708 spec.\n     *\n     * @param  {Integer} serviceNum Service number\n     * @param  {Integer} start      Start index of the 708 packet data\n     * @param  {Integer} size       Block size\n     */\n\n\n    Cea708Stream.prototype.pushServiceBlock = function (serviceNum, start, size) {\n      var b;\n      var i = start;\n      var packetData = this.current708Packet.data;\n      var service = this.services[serviceNum];\n\n      if (!service) {\n        service = this.initService(serviceNum, i);\n      }\n\n      for (; i < start + size && i < packetData.length; i++) {\n        b = packetData[i];\n\n        if (within708TextBlock(b)) {\n          i = this.handleText(i, service);\n        } else if (b === 0x18) {\n          i = this.multiByteCharacter(i, service);\n        } else if (b === 0x10) {\n          i = this.extendedCommands(i, service);\n        } else if (0x80 <= b && b <= 0x87) {\n          i = this.setCurrentWindow(i, service);\n        } else if (0x98 <= b && b <= 0x9f) {\n          i = this.defineWindow(i, service);\n        } else if (b === 0x88) {\n          i = this.clearWindows(i, service);\n        } else if (b === 0x8c) {\n          i = this.deleteWindows(i, service);\n        } else if (b === 0x89) {\n          i = this.displayWindows(i, service);\n        } else if (b === 0x8a) {\n          i = this.hideWindows(i, service);\n        } else if (b === 0x8b) {\n          i = this.toggleWindows(i, service);\n        } else if (b === 0x97) {\n          i = this.setWindowAttributes(i, service);\n        } else if (b === 0x90) {\n          i = this.setPenAttributes(i, service);\n        } else if (b === 0x91) {\n          i = this.setPenColor(i, service);\n        } else if (b === 0x92) {\n          i = this.setPenLocation(i, service);\n        } else if (b === 0x8f) {\n          service = this.reset(i, service);\n        } else if (b === 0x08) {\n          // BS: Backspace\n          service.currentWindow.backspace();\n        } else if (b === 0x0c) {\n          // FF: Form feed\n          service.currentWindow.clearText();\n        } else if (b === 0x0d) {\n          // CR: Carriage return\n          service.currentWindow.pendingNewLine = true;\n        } else if (b === 0x0e) {\n          // HCR: Horizontal carriage return\n          service.currentWindow.clearText();\n        } else if (b === 0x8d) {\n          // DLY: Delay, nothing to do\n          i++;\n        } else ;\n      }\n    };\n    /**\n     * Execute an extended command\n     *\n     * @param  {Integer} i        Current index in the 708 packet\n     * @param  {Service} service  The service object to be affected\n     * @return {Integer}          New index after parsing\n     */\n\n\n    Cea708Stream.prototype.extendedCommands = function (i, service) {\n      var packetData = this.current708Packet.data;\n      var b = packetData[++i];\n\n      if (within708TextBlock(b)) {\n        i = this.handleText(i, service, {\n          isExtended: true\n        });\n      }\n\n      return i;\n    };\n    /**\n     * Get PTS value of a given byte index\n     *\n     * @param  {Integer} byteIndex  Index of the byte\n     * @return {Integer}            PTS\n     */\n\n\n    Cea708Stream.prototype.getPts = function (byteIndex) {\n      // There's 1 pts value per 2 bytes\n      return this.current708Packet.ptsVals[Math.floor(byteIndex / 2)];\n    };\n    /**\n     * Initializes a service\n     *\n     * @param  {Integer} serviceNum Service number\n     * @return {Service}            Initialized service object\n     */\n\n\n    Cea708Stream.prototype.initService = function (serviceNum, i) {\n      var serviceName = 'SERVICE' + serviceNum;\n      var self = this;\n      var serviceName;\n      var encoding;\n\n      if (serviceName in this.serviceEncodings) {\n        encoding = this.serviceEncodings[serviceName];\n      }\n\n      this.services[serviceNum] = new Cea708Service(serviceNum, encoding, self);\n      this.services[serviceNum].init(this.getPts(i), function (pts) {\n        self.flushDisplayed(pts, self.services[serviceNum]);\n      });\n      return this.services[serviceNum];\n    };\n    /**\n     * Execute text writing to current window\n     *\n     * @param  {Integer} i        Current index in the 708 packet\n     * @param  {Service} service  The service object to be affected\n     * @return {Integer}          New index after parsing\n     */\n\n\n    Cea708Stream.prototype.handleText = function (i, service, options) {\n      var isExtended = options && options.isExtended;\n      var isMultiByte = options && options.isMultiByte;\n      var packetData = this.current708Packet.data;\n      var extended = isExtended ? 0x1000 : 0x0000;\n      var currentByte = packetData[i];\n      var nextByte = packetData[i + 1];\n      var win = service.currentWindow;\n\n      var _char;\n\n      var charCodeArray; // Use the TextDecoder if one was created for this service\n\n      if (service.textDecoder_ && !isExtended) {\n        if (isMultiByte) {\n          charCodeArray = [currentByte, nextByte];\n          i++;\n        } else {\n          charCodeArray = [currentByte];\n        }\n\n        _char = service.textDecoder_.decode(new Uint8Array(charCodeArray));\n      } else {\n        _char = get708CharFromCode(extended | currentByte);\n      }\n\n      if (win.pendingNewLine && !win.isEmpty()) {\n        win.newLine(this.getPts(i));\n      }\n\n      win.pendingNewLine = false;\n      win.addText(_char);\n      return i;\n    };\n    /**\n     * Handle decoding of multibyte character\n     *\n     * @param  {Integer} i        Current index in the 708 packet\n     * @param  {Service} service  The service object to be affected\n     * @return {Integer}          New index after parsing\n     */\n\n\n    Cea708Stream.prototype.multiByteCharacter = function (i, service) {\n      var packetData = this.current708Packet.data;\n      var firstByte = packetData[i + 1];\n      var secondByte = packetData[i + 2];\n\n      if (within708TextBlock(firstByte) && within708TextBlock(secondByte)) {\n        i = this.handleText(++i, service, {\n          isMultiByte: true\n        });\n      }\n\n      return i;\n    };\n    /**\n     * Parse and execute the CW# command.\n     *\n     * Set the current window.\n     *\n     * @param  {Integer} i        Current index in the 708 packet\n     * @param  {Service} service  The service object to be affected\n     * @return {Integer}          New index after parsing\n     */\n\n\n    Cea708Stream.prototype.setCurrentWindow = function (i, service) {\n      var packetData = this.current708Packet.data;\n      var b = packetData[i];\n      var windowNum = b & 0x07;\n      service.setCurrentWindow(windowNum);\n      return i;\n    };\n    /**\n     * Parse and execute the DF# command.\n     *\n     * Define a window and set it as the current window.\n     *\n     * @param  {Integer} i        Current index in the 708 packet\n     * @param  {Service} service  The service object to be affected\n     * @return {Integer}          New index after parsing\n     */\n\n\n    Cea708Stream.prototype.defineWindow = function (i, service) {\n      var packetData = this.current708Packet.data;\n      var b = packetData[i];\n      var windowNum = b & 0x07;\n      service.setCurrentWindow(windowNum);\n      var win = service.currentWindow;\n      b = packetData[++i];\n      win.visible = (b & 0x20) >> 5; // v\n\n      win.rowLock = (b & 0x10) >> 4; // rl\n\n      win.columnLock = (b & 0x08) >> 3; // cl\n\n      win.priority = b & 0x07; // p\n\n      b = packetData[++i];\n      win.relativePositioning = (b & 0x80) >> 7; // rp\n\n      win.anchorVertical = b & 0x7f; // av\n\n      b = packetData[++i];\n      win.anchorHorizontal = b; // ah\n\n      b = packetData[++i];\n      win.anchorPoint = (b & 0xf0) >> 4; // ap\n\n      win.rowCount = b & 0x0f; // rc\n\n      b = packetData[++i];\n      win.columnCount = b & 0x3f; // cc\n\n      b = packetData[++i];\n      win.windowStyle = (b & 0x38) >> 3; // ws\n\n      win.penStyle = b & 0x07; // ps\n      // The spec says there are (rowCount+1) \"virtual rows\"\n\n      win.virtualRowCount = win.rowCount + 1;\n      return i;\n    };\n    /**\n     * Parse and execute the SWA command.\n     *\n     * Set attributes of the current window.\n     *\n     * @param  {Integer} i        Current index in the 708 packet\n     * @param  {Service} service  The service object to be affected\n     * @return {Integer}          New index after parsing\n     */\n\n\n    Cea708Stream.prototype.setWindowAttributes = function (i, service) {\n      var packetData = this.current708Packet.data;\n      var b = packetData[i];\n      var winAttr = service.currentWindow.winAttr;\n      b = packetData[++i];\n      winAttr.fillOpacity = (b & 0xc0) >> 6; // fo\n\n      winAttr.fillRed = (b & 0x30) >> 4; // fr\n\n      winAttr.fillGreen = (b & 0x0c) >> 2; // fg\n\n      winAttr.fillBlue = b & 0x03; // fb\n\n      b = packetData[++i];\n      winAttr.borderType = (b & 0xc0) >> 6; // bt\n\n      winAttr.borderRed = (b & 0x30) >> 4; // br\n\n      winAttr.borderGreen = (b & 0x0c) >> 2; // bg\n\n      winAttr.borderBlue = b & 0x03; // bb\n\n      b = packetData[++i];\n      winAttr.borderType += (b & 0x80) >> 5; // bt\n\n      winAttr.wordWrap = (b & 0x40) >> 6; // ww\n\n      winAttr.printDirection = (b & 0x30) >> 4; // pd\n\n      winAttr.scrollDirection = (b & 0x0c) >> 2; // sd\n\n      winAttr.justify = b & 0x03; // j\n\n      b = packetData[++i];\n      winAttr.effectSpeed = (b & 0xf0) >> 4; // es\n\n      winAttr.effectDirection = (b & 0x0c) >> 2; // ed\n\n      winAttr.displayEffect = b & 0x03; // de\n\n      return i;\n    };\n    /**\n     * Gather text from all displayed windows and push a caption to output.\n     *\n     * @param  {Integer} i        Current index in the 708 packet\n     * @param  {Service} service  The service object to be affected\n     */\n\n\n    Cea708Stream.prototype.flushDisplayed = function (pts, service) {\n      var displayedText = []; // TODO: Positioning not supported, displaying multiple windows will not necessarily\n      // display text in the correct order, but sample files so far have not shown any issue.\n\n      for (var winId = 0; winId < 8; winId++) {\n        if (service.windows[winId].visible && !service.windows[winId].isEmpty()) {\n          displayedText.push(service.windows[winId].getText());\n        }\n      }\n\n      service.endPts = pts;\n      service.text = displayedText.join('\\n\\n');\n      this.pushCaption(service);\n      service.startPts = pts;\n    };\n    /**\n     * Push a caption to output if the caption contains text.\n     *\n     * @param  {Service} service  The service object to be affected\n     */\n\n\n    Cea708Stream.prototype.pushCaption = function (service) {\n      if (service.text !== '') {\n        this.trigger('data', {\n          startPts: service.startPts,\n          endPts: service.endPts,\n          text: service.text,\n          stream: 'cc708_' + service.serviceNum\n        });\n        service.text = '';\n        service.startPts = service.endPts;\n      }\n    };\n    /**\n     * Parse and execute the DSW command.\n     *\n     * Set visible property of windows based on the parsed bitmask.\n     *\n     * @param  {Integer} i        Current index in the 708 packet\n     * @param  {Service} service  The service object to be affected\n     * @return {Integer}          New index after parsing\n     */\n\n\n    Cea708Stream.prototype.displayWindows = function (i, service) {\n      var packetData = this.current708Packet.data;\n      var b = packetData[++i];\n      var pts = this.getPts(i);\n      this.flushDisplayed(pts, service);\n\n      for (var winId = 0; winId < 8; winId++) {\n        if (b & 0x01 << winId) {\n          service.windows[winId].visible = 1;\n        }\n      }\n\n      return i;\n    };\n    /**\n     * Parse and execute the HDW command.\n     *\n     * Set visible property of windows based on the parsed bitmask.\n     *\n     * @param  {Integer} i        Current index in the 708 packet\n     * @param  {Service} service  The service object to be affected\n     * @return {Integer}          New index after parsing\n     */\n\n\n    Cea708Stream.prototype.hideWindows = function (i, service) {\n      var packetData = this.current708Packet.data;\n      var b = packetData[++i];\n      var pts = this.getPts(i);\n      this.flushDisplayed(pts, service);\n\n      for (var winId = 0; winId < 8; winId++) {\n        if (b & 0x01 << winId) {\n          service.windows[winId].visible = 0;\n        }\n      }\n\n      return i;\n    };\n    /**\n     * Parse and execute the TGW command.\n     *\n     * Set visible property of windows based on the parsed bitmask.\n     *\n     * @param  {Integer} i        Current index in the 708 packet\n     * @param  {Service} service  The service object to be affected\n     * @return {Integer}          New index after parsing\n     */\n\n\n    Cea708Stream.prototype.toggleWindows = function (i, service) {\n      var packetData = this.current708Packet.data;\n      var b = packetData[++i];\n      var pts = this.getPts(i);\n      this.flushDisplayed(pts, service);\n\n      for (var winId = 0; winId < 8; winId++) {\n        if (b & 0x01 << winId) {\n          service.windows[winId].visible ^= 1;\n        }\n      }\n\n      return i;\n    };\n    /**\n     * Parse and execute the CLW command.\n     *\n     * Clear text of windows based on the parsed bitmask.\n     *\n     * @param  {Integer} i        Current index in the 708 packet\n     * @param  {Service} service  The service object to be affected\n     * @return {Integer}          New index after parsing\n     */\n\n\n    Cea708Stream.prototype.clearWindows = function (i, service) {\n      var packetData = this.current708Packet.data;\n      var b = packetData[++i];\n      var pts = this.getPts(i);\n      this.flushDisplayed(pts, service);\n\n      for (var winId = 0; winId < 8; winId++) {\n        if (b & 0x01 << winId) {\n          service.windows[winId].clearText();\n        }\n      }\n\n      return i;\n    };\n    /**\n     * Parse and execute the DLW command.\n     *\n     * Re-initialize windows based on the parsed bitmask.\n     *\n     * @param  {Integer} i        Current index in the 708 packet\n     * @param  {Service} service  The service object to be affected\n     * @return {Integer}          New index after parsing\n     */\n\n\n    Cea708Stream.prototype.deleteWindows = function (i, service) {\n      var packetData = this.current708Packet.data;\n      var b = packetData[++i];\n      var pts = this.getPts(i);\n      this.flushDisplayed(pts, service);\n\n      for (var winId = 0; winId < 8; winId++) {\n        if (b & 0x01 << winId) {\n          service.windows[winId].reset();\n        }\n      }\n\n      return i;\n    };\n    /**\n     * Parse and execute the SPA command.\n     *\n     * Set pen attributes of the current window.\n     *\n     * @param  {Integer} i        Current index in the 708 packet\n     * @param  {Service} service  The service object to be affected\n     * @return {Integer}          New index after parsing\n     */\n\n\n    Cea708Stream.prototype.setPenAttributes = function (i, service) {\n      var packetData = this.current708Packet.data;\n      var b = packetData[i];\n      var penAttr = service.currentWindow.penAttr;\n      b = packetData[++i];\n      penAttr.textTag = (b & 0xf0) >> 4; // tt\n\n      penAttr.offset = (b & 0x0c) >> 2; // o\n\n      penAttr.penSize = b & 0x03; // s\n\n      b = packetData[++i];\n      penAttr.italics = (b & 0x80) >> 7; // i\n\n      penAttr.underline = (b & 0x40) >> 6; // u\n\n      penAttr.edgeType = (b & 0x38) >> 3; // et\n\n      penAttr.fontStyle = b & 0x07; // fs\n\n      return i;\n    };\n    /**\n     * Parse and execute the SPC command.\n     *\n     * Set pen color of the current window.\n     *\n     * @param  {Integer} i        Current index in the 708 packet\n     * @param  {Service} service  The service object to be affected\n     * @return {Integer}          New index after parsing\n     */\n\n\n    Cea708Stream.prototype.setPenColor = function (i, service) {\n      var packetData = this.current708Packet.data;\n      var b = packetData[i];\n      var penColor = service.currentWindow.penColor;\n      b = packetData[++i];\n      penColor.fgOpacity = (b & 0xc0) >> 6; // fo\n\n      penColor.fgRed = (b & 0x30) >> 4; // fr\n\n      penColor.fgGreen = (b & 0x0c) >> 2; // fg\n\n      penColor.fgBlue = b & 0x03; // fb\n\n      b = packetData[++i];\n      penColor.bgOpacity = (b & 0xc0) >> 6; // bo\n\n      penColor.bgRed = (b & 0x30) >> 4; // br\n\n      penColor.bgGreen = (b & 0x0c) >> 2; // bg\n\n      penColor.bgBlue = b & 0x03; // bb\n\n      b = packetData[++i];\n      penColor.edgeRed = (b & 0x30) >> 4; // er\n\n      penColor.edgeGreen = (b & 0x0c) >> 2; // eg\n\n      penColor.edgeBlue = b & 0x03; // eb\n\n      return i;\n    };\n    /**\n     * Parse and execute the SPL command.\n     *\n     * Set pen location of the current window.\n     *\n     * @param  {Integer} i        Current index in the 708 packet\n     * @param  {Service} service  The service object to be affected\n     * @return {Integer}          New index after parsing\n     */\n\n\n    Cea708Stream.prototype.setPenLocation = function (i, service) {\n      var packetData = this.current708Packet.data;\n      var b = packetData[i];\n      var penLoc = service.currentWindow.penLoc; // Positioning isn't really supported at the moment, so this essentially just inserts a linebreak\n\n      service.currentWindow.pendingNewLine = true;\n      b = packetData[++i];\n      penLoc.row = b & 0x0f; // r\n\n      b = packetData[++i];\n      penLoc.column = b & 0x3f; // c\n\n      return i;\n    };\n    /**\n     * Execute the RST command.\n     *\n     * Reset service to a clean slate. Re-initialize.\n     *\n     * @param  {Integer} i        Current index in the 708 packet\n     * @param  {Service} service  The service object to be affected\n     * @return {Service}          Re-initialized service\n     */\n\n\n    Cea708Stream.prototype.reset = function (i, service) {\n      var pts = this.getPts(i);\n      this.flushDisplayed(pts, service);\n      return this.initService(service.serviceNum, i);\n    }; // This hash maps non-ASCII, special, and extended character codes to their\n    // proper Unicode equivalent. The first keys that are only a single byte\n    // are the non-standard ASCII characters, which simply map the CEA608 byte\n    // to the standard ASCII/Unicode. The two-byte keys that follow are the CEA608\n    // character codes, but have their MSB bitmasked with 0x03 so that a lookup\n    // can be performed regardless of the field and data channel on which the\n    // character code was received.\n\n\n    var CHARACTER_TRANSLATION = {\n      0x2a: 0xe1,\n      // á\n      0x5c: 0xe9,\n      // é\n      0x5e: 0xed,\n      // í\n      0x5f: 0xf3,\n      // ó\n      0x60: 0xfa,\n      // ú\n      0x7b: 0xe7,\n      // ç\n      0x7c: 0xf7,\n      // ÷\n      0x7d: 0xd1,\n      // Ñ\n      0x7e: 0xf1,\n      // ñ\n      0x7f: 0x2588,\n      // █\n      0x0130: 0xae,\n      // ®\n      0x0131: 0xb0,\n      // °\n      0x0132: 0xbd,\n      // ½\n      0x0133: 0xbf,\n      // ¿\n      0x0134: 0x2122,\n      // ™\n      0x0135: 0xa2,\n      // ¢\n      0x0136: 0xa3,\n      // £\n      0x0137: 0x266a,\n      // ♪\n      0x0138: 0xe0,\n      // à\n      0x0139: 0xa0,\n      //\n      0x013a: 0xe8,\n      // è\n      0x013b: 0xe2,\n      // â\n      0x013c: 0xea,\n      // ê\n      0x013d: 0xee,\n      // î\n      0x013e: 0xf4,\n      // ô\n      0x013f: 0xfb,\n      // û\n      0x0220: 0xc1,\n      // Á\n      0x0221: 0xc9,\n      // É\n      0x0222: 0xd3,\n      // Ó\n      0x0223: 0xda,\n      // Ú\n      0x0224: 0xdc,\n      // Ü\n      0x0225: 0xfc,\n      // ü\n      0x0226: 0x2018,\n      // ‘\n      0x0227: 0xa1,\n      // ¡\n      0x0228: 0x2a,\n      // *\n      0x0229: 0x27,\n      // '\n      0x022a: 0x2014,\n      // —\n      0x022b: 0xa9,\n      // ©\n      0x022c: 0x2120,\n      // ℠\n      0x022d: 0x2022,\n      // •\n      0x022e: 0x201c,\n      // “\n      0x022f: 0x201d,\n      // ”\n      0x0230: 0xc0,\n      // À\n      0x0231: 0xc2,\n      // Â\n      0x0232: 0xc7,\n      // Ç\n      0x0233: 0xc8,\n      // È\n      0x0234: 0xca,\n      // Ê\n      0x0235: 0xcb,\n      // Ë\n      0x0236: 0xeb,\n      // ë\n      0x0237: 0xce,\n      // Î\n      0x0238: 0xcf,\n      // Ï\n      0x0239: 0xef,\n      // ï\n      0x023a: 0xd4,\n      // Ô\n      0x023b: 0xd9,\n      // Ù\n      0x023c: 0xf9,\n      // ù\n      0x023d: 0xdb,\n      // Û\n      0x023e: 0xab,\n      // «\n      0x023f: 0xbb,\n      // »\n      0x0320: 0xc3,\n      // Ã\n      0x0321: 0xe3,\n      // ã\n      0x0322: 0xcd,\n      // Í\n      0x0323: 0xcc,\n      // Ì\n      0x0324: 0xec,\n      // ì\n      0x0325: 0xd2,\n      // Ò\n      0x0326: 0xf2,\n      // ò\n      0x0327: 0xd5,\n      // Õ\n      0x0328: 0xf5,\n      // õ\n      0x0329: 0x7b,\n      // {\n      0x032a: 0x7d,\n      // }\n      0x032b: 0x5c,\n      // \\\n      0x032c: 0x5e,\n      // ^\n      0x032d: 0x5f,\n      // _\n      0x032e: 0x7c,\n      // |\n      0x032f: 0x7e,\n      // ~\n      0x0330: 0xc4,\n      // Ä\n      0x0331: 0xe4,\n      // ä\n      0x0332: 0xd6,\n      // Ö\n      0x0333: 0xf6,\n      // ö\n      0x0334: 0xdf,\n      // ß\n      0x0335: 0xa5,\n      // ¥\n      0x0336: 0xa4,\n      // ¤\n      0x0337: 0x2502,\n      // │\n      0x0338: 0xc5,\n      // Å\n      0x0339: 0xe5,\n      // å\n      0x033a: 0xd8,\n      // Ø\n      0x033b: 0xf8,\n      // ø\n      0x033c: 0x250c,\n      // ┌\n      0x033d: 0x2510,\n      // ┐\n      0x033e: 0x2514,\n      // └\n      0x033f: 0x2518 // ┘\n\n    };\n\n    var getCharFromCode = function getCharFromCode(code) {\n      if (code === null) {\n        return '';\n      }\n\n      code = CHARACTER_TRANSLATION[code] || code;\n      return String.fromCharCode(code);\n    }; // the index of the last row in a CEA-608 display buffer\n\n\n    var BOTTOM_ROW = 14; // This array is used for mapping PACs -> row #, since there's no way of\n    // getting it through bit logic.\n\n    var ROWS = [0x1100, 0x1120, 0x1200, 0x1220, 0x1500, 0x1520, 0x1600, 0x1620, 0x1700, 0x1720, 0x1000, 0x1300, 0x1320, 0x1400, 0x1420]; // CEA-608 captions are rendered onto a 34x15 matrix of character\n    // cells. The \"bottom\" row is the last element in the outer array.\n\n    var createDisplayBuffer = function createDisplayBuffer() {\n      var result = [],\n          i = BOTTOM_ROW + 1;\n\n      while (i--) {\n        result.push('');\n      }\n\n      return result;\n    };\n\n    var Cea608Stream = function Cea608Stream(field, dataChannel) {\n      Cea608Stream.prototype.init.call(this);\n      this.field_ = field || 0;\n      this.dataChannel_ = dataChannel || 0;\n      this.name_ = 'CC' + ((this.field_ << 1 | this.dataChannel_) + 1);\n      this.setConstants();\n      this.reset();\n\n      this.push = function (packet) {\n        var data, swap, char0, char1, text; // remove the parity bits\n\n        data = packet.ccData & 0x7f7f; // ignore duplicate control codes; the spec demands they're sent twice\n\n        if (data === this.lastControlCode_) {\n          this.lastControlCode_ = null;\n          return;\n        } // Store control codes\n\n\n        if ((data & 0xf000) === 0x1000) {\n          this.lastControlCode_ = data;\n        } else if (data !== this.PADDING_) {\n          this.lastControlCode_ = null;\n        }\n\n        char0 = data >>> 8;\n        char1 = data & 0xff;\n\n        if (data === this.PADDING_) {\n          return;\n        } else if (data === this.RESUME_CAPTION_LOADING_) {\n          this.mode_ = 'popOn';\n        } else if (data === this.END_OF_CAPTION_) {\n          // If an EOC is received while in paint-on mode, the displayed caption\n          // text should be swapped to non-displayed memory as if it was a pop-on\n          // caption. Because of that, we should explicitly switch back to pop-on\n          // mode\n          this.mode_ = 'popOn';\n          this.clearFormatting(packet.pts); // if a caption was being displayed, it's gone now\n\n          this.flushDisplayed(packet.pts); // flip memory\n\n          swap = this.displayed_;\n          this.displayed_ = this.nonDisplayed_;\n          this.nonDisplayed_ = swap; // start measuring the time to display the caption\n\n          this.startPts_ = packet.pts;\n        } else if (data === this.ROLL_UP_2_ROWS_) {\n          this.rollUpRows_ = 2;\n          this.setRollUp(packet.pts);\n        } else if (data === this.ROLL_UP_3_ROWS_) {\n          this.rollUpRows_ = 3;\n          this.setRollUp(packet.pts);\n        } else if (data === this.ROLL_UP_4_ROWS_) {\n          this.rollUpRows_ = 4;\n          this.setRollUp(packet.pts);\n        } else if (data === this.CARRIAGE_RETURN_) {\n          this.clearFormatting(packet.pts);\n          this.flushDisplayed(packet.pts);\n          this.shiftRowsUp_();\n          this.startPts_ = packet.pts;\n        } else if (data === this.BACKSPACE_) {\n          if (this.mode_ === 'popOn') {\n            this.nonDisplayed_[this.row_] = this.nonDisplayed_[this.row_].slice(0, -1);\n          } else {\n            this.displayed_[this.row_] = this.displayed_[this.row_].slice(0, -1);\n          }\n        } else if (data === this.ERASE_DISPLAYED_MEMORY_) {\n          this.flushDisplayed(packet.pts);\n          this.displayed_ = createDisplayBuffer();\n        } else if (data === this.ERASE_NON_DISPLAYED_MEMORY_) {\n          this.nonDisplayed_ = createDisplayBuffer();\n        } else if (data === this.RESUME_DIRECT_CAPTIONING_) {\n          if (this.mode_ !== 'paintOn') {\n            // NOTE: This should be removed when proper caption positioning is\n            // implemented\n            this.flushDisplayed(packet.pts);\n            this.displayed_ = createDisplayBuffer();\n          }\n\n          this.mode_ = 'paintOn';\n          this.startPts_ = packet.pts; // Append special characters to caption text\n        } else if (this.isSpecialCharacter(char0, char1)) {\n          // Bitmask char0 so that we can apply character transformations\n          // regardless of field and data channel.\n          // Then byte-shift to the left and OR with char1 so we can pass the\n          // entire character code to `getCharFromCode`.\n          char0 = (char0 & 0x03) << 8;\n          text = getCharFromCode(char0 | char1);\n          this[this.mode_](packet.pts, text);\n          this.column_++; // Append extended characters to caption text\n        } else if (this.isExtCharacter(char0, char1)) {\n          // Extended characters always follow their \"non-extended\" equivalents.\n          // IE if a \"è\" is desired, you'll always receive \"eè\"; non-compliant\n          // decoders are supposed to drop the \"è\", while compliant decoders\n          // backspace the \"e\" and insert \"è\".\n          // Delete the previous character\n          if (this.mode_ === 'popOn') {\n            this.nonDisplayed_[this.row_] = this.nonDisplayed_[this.row_].slice(0, -1);\n          } else {\n            this.displayed_[this.row_] = this.displayed_[this.row_].slice(0, -1);\n          } // Bitmask char0 so that we can apply character transformations\n          // regardless of field and data channel.\n          // Then byte-shift to the left and OR with char1 so we can pass the\n          // entire character code to `getCharFromCode`.\n\n\n          char0 = (char0 & 0x03) << 8;\n          text = getCharFromCode(char0 | char1);\n          this[this.mode_](packet.pts, text);\n          this.column_++; // Process mid-row codes\n        } else if (this.isMidRowCode(char0, char1)) {\n          // Attributes are not additive, so clear all formatting\n          this.clearFormatting(packet.pts); // According to the standard, mid-row codes\n          // should be replaced with spaces, so add one now\n\n          this[this.mode_](packet.pts, ' ');\n          this.column_++;\n\n          if ((char1 & 0xe) === 0xe) {\n            this.addFormatting(packet.pts, ['i']);\n          }\n\n          if ((char1 & 0x1) === 0x1) {\n            this.addFormatting(packet.pts, ['u']);\n          } // Detect offset control codes and adjust cursor\n\n        } else if (this.isOffsetControlCode(char0, char1)) {\n          // Cursor position is set by indent PAC (see below) in 4-column\n          // increments, with an additional offset code of 1-3 to reach any\n          // of the 32 columns specified by CEA-608. So all we need to do\n          // here is increment the column cursor by the given offset.\n          this.column_ += char1 & 0x03; // Detect PACs (Preamble Address Codes)\n        } else if (this.isPAC(char0, char1)) {\n          // There's no logic for PAC -> row mapping, so we have to just\n          // find the row code in an array and use its index :(\n          var row = ROWS.indexOf(data & 0x1f20); // Configure the caption window if we're in roll-up mode\n\n          if (this.mode_ === 'rollUp') {\n            // This implies that the base row is incorrectly set.\n            // As per the recommendation in CEA-608(Base Row Implementation), defer to the number\n            // of roll-up rows set.\n            if (row - this.rollUpRows_ + 1 < 0) {\n              row = this.rollUpRows_ - 1;\n            }\n\n            this.setRollUp(packet.pts, row);\n          }\n\n          if (row !== this.row_) {\n            // formatting is only persistent for current row\n            this.clearFormatting(packet.pts);\n            this.row_ = row;\n          } // All PACs can apply underline, so detect and apply\n          // (All odd-numbered second bytes set underline)\n\n\n          if (char1 & 0x1 && this.formatting_.indexOf('u') === -1) {\n            this.addFormatting(packet.pts, ['u']);\n          }\n\n          if ((data & 0x10) === 0x10) {\n            // We've got an indent level code. Each successive even number\n            // increments the column cursor by 4, so we can get the desired\n            // column position by bit-shifting to the right (to get n/2)\n            // and multiplying by 4.\n            this.column_ = ((data & 0xe) >> 1) * 4;\n          }\n\n          if (this.isColorPAC(char1)) {\n            // it's a color code, though we only support white, which\n            // can be either normal or italicized. white italics can be\n            // either 0x4e or 0x6e depending on the row, so we just\n            // bitwise-and with 0xe to see if italics should be turned on\n            if ((char1 & 0xe) === 0xe) {\n              this.addFormatting(packet.pts, ['i']);\n            }\n          } // We have a normal character in char0, and possibly one in char1\n\n        } else if (this.isNormalChar(char0)) {\n          if (char1 === 0x00) {\n            char1 = null;\n          }\n\n          text = getCharFromCode(char0);\n          text += getCharFromCode(char1);\n          this[this.mode_](packet.pts, text);\n          this.column_ += text.length;\n        } // finish data processing\n\n      };\n    };\n\n    Cea608Stream.prototype = new stream(); // Trigger a cue point that captures the current state of the\n    // display buffer\n\n    Cea608Stream.prototype.flushDisplayed = function (pts) {\n      var content = this.displayed_ // remove spaces from the start and end of the string\n      .map(function (row, index) {\n        try {\n          return row.trim();\n        } catch (e) {\n          // Ordinarily, this shouldn't happen. However, caption\n          // parsing errors should not throw exceptions and\n          // break playback.\n          this.trigger('log', {\n            level: 'warn',\n            message: 'Skipping a malformed 608 caption at index ' + index + '.'\n          });\n          return '';\n        }\n      }, this) // combine all text rows to display in one cue\n      .join('\\n') // and remove blank rows from the start and end, but not the middle\n      .replace(/^\\n+|\\n+$/g, '');\n\n      if (content.length) {\n        this.trigger('data', {\n          startPts: this.startPts_,\n          endPts: pts,\n          text: content,\n          stream: this.name_\n        });\n      }\n    };\n    /**\n     * Zero out the data, used for startup and on seek\n     */\n\n\n    Cea608Stream.prototype.reset = function () {\n      this.mode_ = 'popOn'; // When in roll-up mode, the index of the last row that will\n      // actually display captions. If a caption is shifted to a row\n      // with a lower index than this, it is cleared from the display\n      // buffer\n\n      this.topRow_ = 0;\n      this.startPts_ = 0;\n      this.displayed_ = createDisplayBuffer();\n      this.nonDisplayed_ = createDisplayBuffer();\n      this.lastControlCode_ = null; // Track row and column for proper line-breaking and spacing\n\n      this.column_ = 0;\n      this.row_ = BOTTOM_ROW;\n      this.rollUpRows_ = 2; // This variable holds currently-applied formatting\n\n      this.formatting_ = [];\n    };\n    /**\n     * Sets up control code and related constants for this instance\n     */\n\n\n    Cea608Stream.prototype.setConstants = function () {\n      // The following attributes have these uses:\n      // ext_ :    char0 for mid-row codes, and the base for extended\n      //           chars (ext_+0, ext_+1, and ext_+2 are char0s for\n      //           extended codes)\n      // control_: char0 for control codes, except byte-shifted to the\n      //           left so that we can do this.control_ | CONTROL_CODE\n      // offset_:  char0 for tab offset codes\n      //\n      // It's also worth noting that control codes, and _only_ control codes,\n      // differ between field 1 and field2. Field 2 control codes are always\n      // their field 1 value plus 1. That's why there's the \"| field\" on the\n      // control value.\n      if (this.dataChannel_ === 0) {\n        this.BASE_ = 0x10;\n        this.EXT_ = 0x11;\n        this.CONTROL_ = (0x14 | this.field_) << 8;\n        this.OFFSET_ = 0x17;\n      } else if (this.dataChannel_ === 1) {\n        this.BASE_ = 0x18;\n        this.EXT_ = 0x19;\n        this.CONTROL_ = (0x1c | this.field_) << 8;\n        this.OFFSET_ = 0x1f;\n      } // Constants for the LSByte command codes recognized by Cea608Stream. This\n      // list is not exhaustive. For a more comprehensive listing and semantics see\n      // http://www.gpo.gov/fdsys/pkg/CFR-2010-title47-vol1/pdf/CFR-2010-title47-vol1-sec15-119.pdf\n      // Padding\n\n\n      this.PADDING_ = 0x0000; // Pop-on Mode\n\n      this.RESUME_CAPTION_LOADING_ = this.CONTROL_ | 0x20;\n      this.END_OF_CAPTION_ = this.CONTROL_ | 0x2f; // Roll-up Mode\n\n      this.ROLL_UP_2_ROWS_ = this.CONTROL_ | 0x25;\n      this.ROLL_UP_3_ROWS_ = this.CONTROL_ | 0x26;\n      this.ROLL_UP_4_ROWS_ = this.CONTROL_ | 0x27;\n      this.CARRIAGE_RETURN_ = this.CONTROL_ | 0x2d; // paint-on mode\n\n      this.RESUME_DIRECT_CAPTIONING_ = this.CONTROL_ | 0x29; // Erasure\n\n      this.BACKSPACE_ = this.CONTROL_ | 0x21;\n      this.ERASE_DISPLAYED_MEMORY_ = this.CONTROL_ | 0x2c;\n      this.ERASE_NON_DISPLAYED_MEMORY_ = this.CONTROL_ | 0x2e;\n    };\n    /**\n     * Detects if the 2-byte packet data is a special character\n     *\n     * Special characters have a second byte in the range 0x30 to 0x3f,\n     * with the first byte being 0x11 (for data channel 1) or 0x19 (for\n     * data channel 2).\n     *\n     * @param  {Integer} char0 The first byte\n     * @param  {Integer} char1 The second byte\n     * @return {Boolean}       Whether the 2 bytes are an special character\n     */\n\n\n    Cea608Stream.prototype.isSpecialCharacter = function (char0, char1) {\n      return char0 === this.EXT_ && char1 >= 0x30 && char1 <= 0x3f;\n    };\n    /**\n     * Detects if the 2-byte packet data is an extended character\n     *\n     * Extended characters have a second byte in the range 0x20 to 0x3f,\n     * with the first byte being 0x12 or 0x13 (for data channel 1) or\n     * 0x1a or 0x1b (for data channel 2).\n     *\n     * @param  {Integer} char0 The first byte\n     * @param  {Integer} char1 The second byte\n     * @return {Boolean}       Whether the 2 bytes are an extended character\n     */\n\n\n    Cea608Stream.prototype.isExtCharacter = function (char0, char1) {\n      return (char0 === this.EXT_ + 1 || char0 === this.EXT_ + 2) && char1 >= 0x20 && char1 <= 0x3f;\n    };\n    /**\n     * Detects if the 2-byte packet is a mid-row code\n     *\n     * Mid-row codes have a second byte in the range 0x20 to 0x2f, with\n     * the first byte being 0x11 (for data channel 1) or 0x19 (for data\n     * channel 2).\n     *\n     * @param  {Integer} char0 The first byte\n     * @param  {Integer} char1 The second byte\n     * @return {Boolean}       Whether the 2 bytes are a mid-row code\n     */\n\n\n    Cea608Stream.prototype.isMidRowCode = function (char0, char1) {\n      return char0 === this.EXT_ && char1 >= 0x20 && char1 <= 0x2f;\n    };\n    /**\n     * Detects if the 2-byte packet is an offset control code\n     *\n     * Offset control codes have a second byte in the range 0x21 to 0x23,\n     * with the first byte being 0x17 (for data channel 1) or 0x1f (for\n     * data channel 2).\n     *\n     * @param  {Integer} char0 The first byte\n     * @param  {Integer} char1 The second byte\n     * @return {Boolean}       Whether the 2 bytes are an offset control code\n     */\n\n\n    Cea608Stream.prototype.isOffsetControlCode = function (char0, char1) {\n      return char0 === this.OFFSET_ && char1 >= 0x21 && char1 <= 0x23;\n    };\n    /**\n     * Detects if the 2-byte packet is a Preamble Address Code\n     *\n     * PACs have a first byte in the range 0x10 to 0x17 (for data channel 1)\n     * or 0x18 to 0x1f (for data channel 2), with the second byte in the\n     * range 0x40 to 0x7f.\n     *\n     * @param  {Integer} char0 The first byte\n     * @param  {Integer} char1 The second byte\n     * @return {Boolean}       Whether the 2 bytes are a PAC\n     */\n\n\n    Cea608Stream.prototype.isPAC = function (char0, char1) {\n      return char0 >= this.BASE_ && char0 < this.BASE_ + 8 && char1 >= 0x40 && char1 <= 0x7f;\n    };\n    /**\n     * Detects if a packet's second byte is in the range of a PAC color code\n     *\n     * PAC color codes have the second byte be in the range 0x40 to 0x4f, or\n     * 0x60 to 0x6f.\n     *\n     * @param  {Integer} char1 The second byte\n     * @return {Boolean}       Whether the byte is a color PAC\n     */\n\n\n    Cea608Stream.prototype.isColorPAC = function (char1) {\n      return char1 >= 0x40 && char1 <= 0x4f || char1 >= 0x60 && char1 <= 0x7f;\n    };\n    /**\n     * Detects if a single byte is in the range of a normal character\n     *\n     * Normal text bytes are in the range 0x20 to 0x7f.\n     *\n     * @param  {Integer} char  The byte\n     * @return {Boolean}       Whether the byte is a normal character\n     */\n\n\n    Cea608Stream.prototype.isNormalChar = function (_char2) {\n      return _char2 >= 0x20 && _char2 <= 0x7f;\n    };\n    /**\n     * Configures roll-up\n     *\n     * @param  {Integer} pts         Current PTS\n     * @param  {Integer} newBaseRow  Used by PACs to slide the current window to\n     *                               a new position\n     */\n\n\n    Cea608Stream.prototype.setRollUp = function (pts, newBaseRow) {\n      // Reset the base row to the bottom row when switching modes\n      if (this.mode_ !== 'rollUp') {\n        this.row_ = BOTTOM_ROW;\n        this.mode_ = 'rollUp'; // Spec says to wipe memories when switching to roll-up\n\n        this.flushDisplayed(pts);\n        this.nonDisplayed_ = createDisplayBuffer();\n        this.displayed_ = createDisplayBuffer();\n      }\n\n      if (newBaseRow !== undefined && newBaseRow !== this.row_) {\n        // move currently displayed captions (up or down) to the new base row\n        for (var i = 0; i < this.rollUpRows_; i++) {\n          this.displayed_[newBaseRow - i] = this.displayed_[this.row_ - i];\n          this.displayed_[this.row_ - i] = '';\n        }\n      }\n\n      if (newBaseRow === undefined) {\n        newBaseRow = this.row_;\n      }\n\n      this.topRow_ = newBaseRow - this.rollUpRows_ + 1;\n    }; // Adds the opening HTML tag for the passed character to the caption text,\n    // and keeps track of it for later closing\n\n\n    Cea608Stream.prototype.addFormatting = function (pts, format) {\n      this.formatting_ = this.formatting_.concat(format);\n      var text = format.reduce(function (text, format) {\n        return text + '<' + format + '>';\n      }, '');\n      this[this.mode_](pts, text);\n    }; // Adds HTML closing tags for current formatting to caption text and\n    // clears remembered formatting\n\n\n    Cea608Stream.prototype.clearFormatting = function (pts) {\n      if (!this.formatting_.length) {\n        return;\n      }\n\n      var text = this.formatting_.reverse().reduce(function (text, format) {\n        return text + '</' + format + '>';\n      }, '');\n      this.formatting_ = [];\n      this[this.mode_](pts, text);\n    }; // Mode Implementations\n\n\n    Cea608Stream.prototype.popOn = function (pts, text) {\n      var baseRow = this.nonDisplayed_[this.row_]; // buffer characters\n\n      baseRow += text;\n      this.nonDisplayed_[this.row_] = baseRow;\n    };\n\n    Cea608Stream.prototype.rollUp = function (pts, text) {\n      var baseRow = this.displayed_[this.row_];\n      baseRow += text;\n      this.displayed_[this.row_] = baseRow;\n    };\n\n    Cea608Stream.prototype.shiftRowsUp_ = function () {\n      var i; // clear out inactive rows\n\n      for (i = 0; i < this.topRow_; i++) {\n        this.displayed_[i] = '';\n      }\n\n      for (i = this.row_ + 1; i < BOTTOM_ROW + 1; i++) {\n        this.displayed_[i] = '';\n      } // shift displayed rows up\n\n\n      for (i = this.topRow_; i < this.row_; i++) {\n        this.displayed_[i] = this.displayed_[i + 1];\n      } // clear out the bottom row\n\n\n      this.displayed_[this.row_] = '';\n    };\n\n    Cea608Stream.prototype.paintOn = function (pts, text) {\n      var baseRow = this.displayed_[this.row_];\n      baseRow += text;\n      this.displayed_[this.row_] = baseRow;\n    }; // exports\n\n\n    var captionStream = {\n      CaptionStream: CaptionStream$1,\n      Cea608Stream: Cea608Stream,\n      Cea708Stream: Cea708Stream\n    };\n    /**\n     * mux.js\n     *\n     * Copyright (c) Brightcove\n     * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE\n     */\n\n    var streamTypes = {\n      H264_STREAM_TYPE: 0x1B,\n      ADTS_STREAM_TYPE: 0x0F,\n      METADATA_STREAM_TYPE: 0x15\n    };\n    var MAX_TS = 8589934592;\n    var RO_THRESH = 4294967296;\n    var TYPE_SHARED = 'shared';\n\n    var handleRollover$1 = function handleRollover(value, reference) {\n      var direction = 1;\n\n      if (value > reference) {\n        // If the current timestamp value is greater than our reference timestamp and we detect a\n        // timestamp rollover, this means the roll over is happening in the opposite direction.\n        // Example scenario: Enter a long stream/video just after a rollover occurred. The reference\n        // point will be set to a small number, e.g. 1. The user then seeks backwards over the\n        // rollover point. In loading this segment, the timestamp values will be very large,\n        // e.g. 2^33 - 1. Since this comes before the data we loaded previously, we want to adjust\n        // the time stamp to be `value - 2^33`.\n        direction = -1;\n      } // Note: A seek forwards or back that is greater than the RO_THRESH (2^32, ~13 hours) will\n      // cause an incorrect adjustment.\n\n\n      while (Math.abs(reference - value) > RO_THRESH) {\n        value += direction * MAX_TS;\n      }\n\n      return value;\n    };\n\n    var TimestampRolloverStream$1 = function TimestampRolloverStream(type) {\n      var lastDTS, referenceDTS;\n      TimestampRolloverStream.prototype.init.call(this); // The \"shared\" type is used in cases where a stream will contain muxed\n      // video and audio. We could use `undefined` here, but having a string\n      // makes debugging a little clearer.\n\n      this.type_ = type || TYPE_SHARED;\n\n      this.push = function (data) {\n        // Any \"shared\" rollover streams will accept _all_ data. Otherwise,\n        // streams will only accept data that matches their type.\n        if (this.type_ !== TYPE_SHARED && data.type !== this.type_) {\n          return;\n        }\n\n        if (referenceDTS === undefined) {\n          referenceDTS = data.dts;\n        }\n\n        data.dts = handleRollover$1(data.dts, referenceDTS);\n        data.pts = handleRollover$1(data.pts, referenceDTS);\n        lastDTS = data.dts;\n        this.trigger('data', data);\n      };\n\n      this.flush = function () {\n        referenceDTS = lastDTS;\n        this.trigger('done');\n      };\n\n      this.endTimeline = function () {\n        this.flush();\n        this.trigger('endedtimeline');\n      };\n\n      this.discontinuity = function () {\n        referenceDTS = void 0;\n        lastDTS = void 0;\n      };\n\n      this.reset = function () {\n        this.discontinuity();\n        this.trigger('reset');\n      };\n    };\n\n    TimestampRolloverStream$1.prototype = new stream();\n    var timestampRolloverStream = {\n      TimestampRolloverStream: TimestampRolloverStream$1,\n      handleRollover: handleRollover$1\n    };\n\n    var percentEncode$1 = function percentEncode(bytes, start, end) {\n      var i,\n          result = '';\n\n      for (i = start; i < end; i++) {\n        result += '%' + ('00' + bytes[i].toString(16)).slice(-2);\n      }\n\n      return result;\n    },\n        // return the string representation of the specified byte range,\n    // interpreted as UTf-8.\n    parseUtf8 = function parseUtf8(bytes, start, end) {\n      return decodeURIComponent(percentEncode$1(bytes, start, end));\n    },\n        // return the string representation of the specified byte range,\n    // interpreted as ISO-8859-1.\n    parseIso88591$1 = function parseIso88591(bytes, start, end) {\n      return unescape(percentEncode$1(bytes, start, end)); // jshint ignore:line\n    },\n        parseSyncSafeInteger$1 = function parseSyncSafeInteger(data) {\n      return data[0] << 21 | data[1] << 14 | data[2] << 7 | data[3];\n    },\n        tagParsers = {\n      TXXX: function TXXX(tag) {\n        var i;\n\n        if (tag.data[0] !== 3) {\n          // ignore frames with unrecognized character encodings\n          return;\n        }\n\n        for (i = 1; i < tag.data.length; i++) {\n          if (tag.data[i] === 0) {\n            // parse the text fields\n            tag.description = parseUtf8(tag.data, 1, i); // do not include the null terminator in the tag value\n\n            tag.value = parseUtf8(tag.data, i + 1, tag.data.length).replace(/\\0*$/, '');\n            break;\n          }\n        }\n\n        tag.data = tag.value;\n      },\n      WXXX: function WXXX(tag) {\n        var i;\n\n        if (tag.data[0] !== 3) {\n          // ignore frames with unrecognized character encodings\n          return;\n        }\n\n        for (i = 1; i < tag.data.length; i++) {\n          if (tag.data[i] === 0) {\n            // parse the description and URL fields\n            tag.description = parseUtf8(tag.data, 1, i);\n            tag.url = parseUtf8(tag.data, i + 1, tag.data.length);\n            break;\n          }\n        }\n      },\n      PRIV: function PRIV(tag) {\n        var i;\n\n        for (i = 0; i < tag.data.length; i++) {\n          if (tag.data[i] === 0) {\n            // parse the description and URL fields\n            tag.owner = parseIso88591$1(tag.data, 0, i);\n            break;\n          }\n        }\n\n        tag.privateData = tag.data.subarray(i + 1);\n        tag.data = tag.privateData;\n      }\n    },\n        _MetadataStream;\n\n    _MetadataStream = function MetadataStream(options) {\n      var settings = {\n        // the bytes of the program-level descriptor field in MP2T\n        // see ISO/IEC 13818-1:2013 (E), section 2.6 \"Program and\n        // program element descriptors\"\n        descriptor: options && options.descriptor\n      },\n          // the total size in bytes of the ID3 tag being parsed\n      tagSize = 0,\n          // tag data that is not complete enough to be parsed\n      buffer = [],\n          // the total number of bytes currently in the buffer\n      bufferSize = 0,\n          i;\n\n      _MetadataStream.prototype.init.call(this); // calculate the text track in-band metadata track dispatch type\n      // https://html.spec.whatwg.org/multipage/embedded-content.html#steps-to-expose-a-media-resource-specific-text-track\n\n\n      this.dispatchType = streamTypes.METADATA_STREAM_TYPE.toString(16);\n\n      if (settings.descriptor) {\n        for (i = 0; i < settings.descriptor.length; i++) {\n          this.dispatchType += ('00' + settings.descriptor[i].toString(16)).slice(-2);\n        }\n      }\n\n      this.push = function (chunk) {\n        var tag, frameStart, frameSize, frame, i, frameHeader;\n\n        if (chunk.type !== 'timed-metadata') {\n          return;\n        } // if data_alignment_indicator is set in the PES header,\n        // we must have the start of a new ID3 tag. Assume anything\n        // remaining in the buffer was malformed and throw it out\n\n\n        if (chunk.dataAlignmentIndicator) {\n          bufferSize = 0;\n          buffer.length = 0;\n        } // ignore events that don't look like ID3 data\n\n\n        if (buffer.length === 0 && (chunk.data.length < 10 || chunk.data[0] !== 'I'.charCodeAt(0) || chunk.data[1] !== 'D'.charCodeAt(0) || chunk.data[2] !== '3'.charCodeAt(0))) {\n          this.trigger('log', {\n            level: 'warn',\n            message: 'Skipping unrecognized metadata packet'\n          });\n          return;\n        } // add this chunk to the data we've collected so far\n\n\n        buffer.push(chunk);\n        bufferSize += chunk.data.byteLength; // grab the size of the entire frame from the ID3 header\n\n        if (buffer.length === 1) {\n          // the frame size is transmitted as a 28-bit integer in the\n          // last four bytes of the ID3 header.\n          // The most significant bit of each byte is dropped and the\n          // results concatenated to recover the actual value.\n          tagSize = parseSyncSafeInteger$1(chunk.data.subarray(6, 10)); // ID3 reports the tag size excluding the header but it's more\n          // convenient for our comparisons to include it\n\n          tagSize += 10;\n        } // if the entire frame has not arrived, wait for more data\n\n\n        if (bufferSize < tagSize) {\n          return;\n        } // collect the entire frame so it can be parsed\n\n\n        tag = {\n          data: new Uint8Array(tagSize),\n          frames: [],\n          pts: buffer[0].pts,\n          dts: buffer[0].dts\n        };\n\n        for (i = 0; i < tagSize;) {\n          tag.data.set(buffer[0].data.subarray(0, tagSize - i), i);\n          i += buffer[0].data.byteLength;\n          bufferSize -= buffer[0].data.byteLength;\n          buffer.shift();\n        } // find the start of the first frame and the end of the tag\n\n\n        frameStart = 10;\n\n        if (tag.data[5] & 0x40) {\n          // advance the frame start past the extended header\n          frameStart += 4; // header size field\n\n          frameStart += parseSyncSafeInteger$1(tag.data.subarray(10, 14)); // clip any padding off the end\n\n          tagSize -= parseSyncSafeInteger$1(tag.data.subarray(16, 20));\n        } // parse one or more ID3 frames\n        // http://id3.org/id3v2.3.0#ID3v2_frame_overview\n\n\n        do {\n          // determine the number of bytes in this frame\n          frameSize = parseSyncSafeInteger$1(tag.data.subarray(frameStart + 4, frameStart + 8));\n\n          if (frameSize < 1) {\n            this.trigger('log', {\n              level: 'warn',\n              message: 'Malformed ID3 frame encountered. Skipping metadata parsing.'\n            });\n            return;\n          }\n\n          frameHeader = String.fromCharCode(tag.data[frameStart], tag.data[frameStart + 1], tag.data[frameStart + 2], tag.data[frameStart + 3]);\n          frame = {\n            id: frameHeader,\n            data: tag.data.subarray(frameStart + 10, frameStart + frameSize + 10)\n          };\n          frame.key = frame.id;\n\n          if (tagParsers[frame.id]) {\n            tagParsers[frame.id](frame); // handle the special PRIV frame used to indicate the start\n            // time for raw AAC data\n\n            if (frame.owner === 'com.apple.streaming.transportStreamTimestamp') {\n              var d = frame.data,\n                  size = (d[3] & 0x01) << 30 | d[4] << 22 | d[5] << 14 | d[6] << 6 | d[7] >>> 2;\n              size *= 4;\n              size += d[7] & 0x03;\n              frame.timeStamp = size; // in raw AAC, all subsequent data will be timestamped based\n              // on the value of this frame\n              // we couldn't have known the appropriate pts and dts before\n              // parsing this ID3 tag so set those values now\n\n              if (tag.pts === undefined && tag.dts === undefined) {\n                tag.pts = frame.timeStamp;\n                tag.dts = frame.timeStamp;\n              }\n\n              this.trigger('timestamp', frame);\n            }\n          }\n\n          tag.frames.push(frame);\n          frameStart += 10; // advance past the frame header\n\n          frameStart += frameSize; // advance past the frame body\n        } while (frameStart < tagSize);\n\n        this.trigger('data', tag);\n      };\n    };\n\n    _MetadataStream.prototype = new stream();\n    var metadataStream = _MetadataStream;\n    var TimestampRolloverStream = timestampRolloverStream.TimestampRolloverStream; // object types\n\n    var _TransportPacketStream, _TransportParseStream, _ElementaryStream; // constants\n\n\n    var MP2T_PACKET_LENGTH$1 = 188,\n        // bytes\n    SYNC_BYTE$1 = 0x47;\n    /**\n     * Splits an incoming stream of binary data into MPEG-2 Transport\n     * Stream packets.\n     */\n\n    _TransportPacketStream = function TransportPacketStream() {\n      var buffer = new Uint8Array(MP2T_PACKET_LENGTH$1),\n          bytesInBuffer = 0;\n\n      _TransportPacketStream.prototype.init.call(this); // Deliver new bytes to the stream.\n\n      /**\n       * Split a stream of data into M2TS packets\n      **/\n\n\n      this.push = function (bytes) {\n        var startIndex = 0,\n            endIndex = MP2T_PACKET_LENGTH$1,\n            everything; // If there are bytes remaining from the last segment, prepend them to the\n        // bytes that were pushed in\n\n        if (bytesInBuffer) {\n          everything = new Uint8Array(bytes.byteLength + bytesInBuffer);\n          everything.set(buffer.subarray(0, bytesInBuffer));\n          everything.set(bytes, bytesInBuffer);\n          bytesInBuffer = 0;\n        } else {\n          everything = bytes;\n        } // While we have enough data for a packet\n\n\n        while (endIndex < everything.byteLength) {\n          // Look for a pair of start and end sync bytes in the data..\n          if (everything[startIndex] === SYNC_BYTE$1 && everything[endIndex] === SYNC_BYTE$1) {\n            // We found a packet so emit it and jump one whole packet forward in\n            // the stream\n            this.trigger('data', everything.subarray(startIndex, endIndex));\n            startIndex += MP2T_PACKET_LENGTH$1;\n            endIndex += MP2T_PACKET_LENGTH$1;\n            continue;\n          } // If we get here, we have somehow become de-synchronized and we need to step\n          // forward one byte at a time until we find a pair of sync bytes that denote\n          // a packet\n\n\n          startIndex++;\n          endIndex++;\n        } // If there was some data left over at the end of the segment that couldn't\n        // possibly be a whole packet, keep it because it might be the start of a packet\n        // that continues in the next segment\n\n\n        if (startIndex < everything.byteLength) {\n          buffer.set(everything.subarray(startIndex), 0);\n          bytesInBuffer = everything.byteLength - startIndex;\n        }\n      };\n      /**\n       * Passes identified M2TS packets to the TransportParseStream to be parsed\n      **/\n\n\n      this.flush = function () {\n        // If the buffer contains a whole packet when we are being flushed, emit it\n        // and empty the buffer. Otherwise hold onto the data because it may be\n        // important for decoding the next segment\n        if (bytesInBuffer === MP2T_PACKET_LENGTH$1 && buffer[0] === SYNC_BYTE$1) {\n          this.trigger('data', buffer);\n          bytesInBuffer = 0;\n        }\n\n        this.trigger('done');\n      };\n\n      this.endTimeline = function () {\n        this.flush();\n        this.trigger('endedtimeline');\n      };\n\n      this.reset = function () {\n        bytesInBuffer = 0;\n        this.trigger('reset');\n      };\n    };\n\n    _TransportPacketStream.prototype = new stream();\n    /**\n     * Accepts an MP2T TransportPacketStream and emits data events with parsed\n     * forms of the individual transport stream packets.\n     */\n\n    _TransportParseStream = function TransportParseStream() {\n      var parsePsi, parsePat, parsePmt, self;\n\n      _TransportParseStream.prototype.init.call(this);\n\n      self = this;\n      this.packetsWaitingForPmt = [];\n      this.programMapTable = undefined;\n\n      parsePsi = function parsePsi(payload, psi) {\n        var offset = 0; // PSI packets may be split into multiple sections and those\n        // sections may be split into multiple packets. If a PSI\n        // section starts in this packet, the payload_unit_start_indicator\n        // will be true and the first byte of the payload will indicate\n        // the offset from the current position to the start of the\n        // section.\n\n        if (psi.payloadUnitStartIndicator) {\n          offset += payload[offset] + 1;\n        }\n\n        if (psi.type === 'pat') {\n          parsePat(payload.subarray(offset), psi);\n        } else {\n          parsePmt(payload.subarray(offset), psi);\n        }\n      };\n\n      parsePat = function parsePat(payload, pat) {\n        pat.section_number = payload[7]; // eslint-disable-line camelcase\n\n        pat.last_section_number = payload[8]; // eslint-disable-line camelcase\n        // skip the PSI header and parse the first PMT entry\n\n        self.pmtPid = (payload[10] & 0x1F) << 8 | payload[11];\n        pat.pmtPid = self.pmtPid;\n      };\n      /**\n       * Parse out the relevant fields of a Program Map Table (PMT).\n       * @param payload {Uint8Array} the PMT-specific portion of an MP2T\n       * packet. The first byte in this array should be the table_id\n       * field.\n       * @param pmt {object} the object that should be decorated with\n       * fields parsed from the PMT.\n       */\n\n\n      parsePmt = function parsePmt(payload, pmt) {\n        var sectionLength, tableEnd, programInfoLength, offset; // PMTs can be sent ahead of the time when they should actually\n        // take effect. We don't believe this should ever be the case\n        // for HLS but we'll ignore \"forward\" PMT declarations if we see\n        // them. Future PMT declarations have the current_next_indicator\n        // set to zero.\n\n        if (!(payload[5] & 0x01)) {\n          return;\n        } // overwrite any existing program map table\n\n\n        self.programMapTable = {\n          video: null,\n          audio: null,\n          'timed-metadata': {}\n        }; // the mapping table ends at the end of the current section\n\n        sectionLength = (payload[1] & 0x0f) << 8 | payload[2];\n        tableEnd = 3 + sectionLength - 4; // to determine where the table is, we have to figure out how\n        // long the program info descriptors are\n\n        programInfoLength = (payload[10] & 0x0f) << 8 | payload[11]; // advance the offset to the first entry in the mapping table\n\n        offset = 12 + programInfoLength;\n\n        while (offset < tableEnd) {\n          var streamType = payload[offset];\n          var pid = (payload[offset + 1] & 0x1F) << 8 | payload[offset + 2]; // only map a single elementary_pid for audio and video stream types\n          // TODO: should this be done for metadata too? for now maintain behavior of\n          //       multiple metadata streams\n\n          if (streamType === streamTypes.H264_STREAM_TYPE && self.programMapTable.video === null) {\n            self.programMapTable.video = pid;\n          } else if (streamType === streamTypes.ADTS_STREAM_TYPE && self.programMapTable.audio === null) {\n            self.programMapTable.audio = pid;\n          } else if (streamType === streamTypes.METADATA_STREAM_TYPE) {\n            // map pid to stream type for metadata streams\n            self.programMapTable['timed-metadata'][pid] = streamType;\n          } // move to the next table entry\n          // skip past the elementary stream descriptors, if present\n\n\n          offset += ((payload[offset + 3] & 0x0F) << 8 | payload[offset + 4]) + 5;\n        } // record the map on the packet as well\n\n\n        pmt.programMapTable = self.programMapTable;\n      };\n      /**\n       * Deliver a new MP2T packet to the next stream in the pipeline.\n       */\n\n\n      this.push = function (packet) {\n        var result = {},\n            offset = 4;\n        result.payloadUnitStartIndicator = !!(packet[1] & 0x40); // pid is a 13-bit field starting at the last bit of packet[1]\n\n        result.pid = packet[1] & 0x1f;\n        result.pid <<= 8;\n        result.pid |= packet[2]; // if an adaption field is present, its length is specified by the\n        // fifth byte of the TS packet header. The adaptation field is\n        // used to add stuffing to PES packets that don't fill a complete\n        // TS packet, and to specify some forms of timing and control data\n        // that we do not currently use.\n\n        if ((packet[3] & 0x30) >>> 4 > 0x01) {\n          offset += packet[offset] + 1;\n        } // parse the rest of the packet based on the type\n\n\n        if (result.pid === 0) {\n          result.type = 'pat';\n          parsePsi(packet.subarray(offset), result);\n          this.trigger('data', result);\n        } else if (result.pid === this.pmtPid) {\n          result.type = 'pmt';\n          parsePsi(packet.subarray(offset), result);\n          this.trigger('data', result); // if there are any packets waiting for a PMT to be found, process them now\n\n          while (this.packetsWaitingForPmt.length) {\n            this.processPes_.apply(this, this.packetsWaitingForPmt.shift());\n          }\n        } else if (this.programMapTable === undefined) {\n          // When we have not seen a PMT yet, defer further processing of\n          // PES packets until one has been parsed\n          this.packetsWaitingForPmt.push([packet, offset, result]);\n        } else {\n          this.processPes_(packet, offset, result);\n        }\n      };\n\n      this.processPes_ = function (packet, offset, result) {\n        // set the appropriate stream type\n        if (result.pid === this.programMapTable.video) {\n          result.streamType = streamTypes.H264_STREAM_TYPE;\n        } else if (result.pid === this.programMapTable.audio) {\n          result.streamType = streamTypes.ADTS_STREAM_TYPE;\n        } else {\n          // if not video or audio, it is timed-metadata or unknown\n          // if unknown, streamType will be undefined\n          result.streamType = this.programMapTable['timed-metadata'][result.pid];\n        }\n\n        result.type = 'pes';\n        result.data = packet.subarray(offset);\n        this.trigger('data', result);\n      };\n    };\n\n    _TransportParseStream.prototype = new stream();\n    _TransportParseStream.STREAM_TYPES = {\n      h264: 0x1b,\n      adts: 0x0f\n    };\n    /**\n     * Reconsistutes program elementary stream (PES) packets from parsed\n     * transport stream packets. That is, if you pipe an\n     * mp2t.TransportParseStream into a mp2t.ElementaryStream, the output\n     * events will be events which capture the bytes for individual PES\n     * packets plus relevant metadata that has been extracted from the\n     * container.\n     */\n\n    _ElementaryStream = function ElementaryStream() {\n      var self = this,\n          segmentHadPmt = false,\n          // PES packet fragments\n      video = {\n        data: [],\n        size: 0\n      },\n          audio = {\n        data: [],\n        size: 0\n      },\n          timedMetadata = {\n        data: [],\n        size: 0\n      },\n          programMapTable,\n          parsePes = function parsePes(payload, pes) {\n        var ptsDtsFlags;\n        var startPrefix = payload[0] << 16 | payload[1] << 8 | payload[2]; // default to an empty array\n\n        pes.data = new Uint8Array(); // In certain live streams, the start of a TS fragment has ts packets\n        // that are frame data that is continuing from the previous fragment. This\n        // is to check that the pes data is the start of a new pes payload\n\n        if (startPrefix !== 1) {\n          return;\n        } // get the packet length, this will be 0 for video\n\n\n        pes.packetLength = 6 + (payload[4] << 8 | payload[5]); // find out if this packets starts a new keyframe\n\n        pes.dataAlignmentIndicator = (payload[6] & 0x04) !== 0; // PES packets may be annotated with a PTS value, or a PTS value\n        // and a DTS value. Determine what combination of values is\n        // available to work with.\n\n        ptsDtsFlags = payload[7]; // PTS and DTS are normally stored as a 33-bit number.  Javascript\n        // performs all bitwise operations on 32-bit integers but javascript\n        // supports a much greater range (52-bits) of integer using standard\n        // mathematical operations.\n        // We construct a 31-bit value using bitwise operators over the 31\n        // most significant bits and then multiply by 4 (equal to a left-shift\n        // of 2) before we add the final 2 least significant bits of the\n        // timestamp (equal to an OR.)\n\n        if (ptsDtsFlags & 0xC0) {\n          // the PTS and DTS are not written out directly. For information\n          // on how they are encoded, see\n          // http://dvd.sourceforge.net/dvdinfo/pes-hdr.html\n          pes.pts = (payload[9] & 0x0E) << 27 | (payload[10] & 0xFF) << 20 | (payload[11] & 0xFE) << 12 | (payload[12] & 0xFF) << 5 | (payload[13] & 0xFE) >>> 3;\n          pes.pts *= 4; // Left shift by 2\n\n          pes.pts += (payload[13] & 0x06) >>> 1; // OR by the two LSBs\n\n          pes.dts = pes.pts;\n\n          if (ptsDtsFlags & 0x40) {\n            pes.dts = (payload[14] & 0x0E) << 27 | (payload[15] & 0xFF) << 20 | (payload[16] & 0xFE) << 12 | (payload[17] & 0xFF) << 5 | (payload[18] & 0xFE) >>> 3;\n            pes.dts *= 4; // Left shift by 2\n\n            pes.dts += (payload[18] & 0x06) >>> 1; // OR by the two LSBs\n          }\n        } // the data section starts immediately after the PES header.\n        // pes_header_data_length specifies the number of header bytes\n        // that follow the last byte of the field.\n\n\n        pes.data = payload.subarray(9 + payload[8]);\n      },\n\n      /**\n        * Pass completely parsed PES packets to the next stream in the pipeline\n       **/\n      flushStream = function flushStream(stream, type, forceFlush) {\n        var packetData = new Uint8Array(stream.size),\n            event = {\n          type: type\n        },\n            i = 0,\n            offset = 0,\n            packetFlushable = false,\n            fragment; // do nothing if there is not enough buffered data for a complete\n        // PES header\n\n        if (!stream.data.length || stream.size < 9) {\n          return;\n        }\n\n        event.trackId = stream.data[0].pid; // reassemble the packet\n\n        for (i = 0; i < stream.data.length; i++) {\n          fragment = stream.data[i];\n          packetData.set(fragment.data, offset);\n          offset += fragment.data.byteLength;\n        } // parse assembled packet's PES header\n\n\n        parsePes(packetData, event); // non-video PES packets MUST have a non-zero PES_packet_length\n        // check that there is enough stream data to fill the packet\n\n        packetFlushable = type === 'video' || event.packetLength <= stream.size; // flush pending packets if the conditions are right\n\n        if (forceFlush || packetFlushable) {\n          stream.size = 0;\n          stream.data.length = 0;\n        } // only emit packets that are complete. this is to avoid assembling\n        // incomplete PES packets due to poor segmentation\n\n\n        if (packetFlushable) {\n          self.trigger('data', event);\n        }\n      };\n\n      _ElementaryStream.prototype.init.call(this);\n      /**\n       * Identifies M2TS packet types and parses PES packets using metadata\n       * parsed from the PMT\n       **/\n\n\n      this.push = function (data) {\n        ({\n          pat: function pat() {// we have to wait for the PMT to arrive as well before we\n            // have any meaningful metadata\n          },\n          pes: function pes() {\n            var stream, streamType;\n\n            switch (data.streamType) {\n              case streamTypes.H264_STREAM_TYPE:\n                stream = video;\n                streamType = 'video';\n                break;\n\n              case streamTypes.ADTS_STREAM_TYPE:\n                stream = audio;\n                streamType = 'audio';\n                break;\n\n              case streamTypes.METADATA_STREAM_TYPE:\n                stream = timedMetadata;\n                streamType = 'timed-metadata';\n                break;\n\n              default:\n                // ignore unknown stream types\n                return;\n            } // if a new packet is starting, we can flush the completed\n            // packet\n\n\n            if (data.payloadUnitStartIndicator) {\n              flushStream(stream, streamType, true);\n            } // buffer this fragment until we are sure we've received the\n            // complete payload\n\n\n            stream.data.push(data);\n            stream.size += data.data.byteLength;\n          },\n          pmt: function pmt() {\n            var event = {\n              type: 'metadata',\n              tracks: []\n            };\n            programMapTable = data.programMapTable; // translate audio and video streams to tracks\n\n            if (programMapTable.video !== null) {\n              event.tracks.push({\n                timelineStartInfo: {\n                  baseMediaDecodeTime: 0\n                },\n                id: +programMapTable.video,\n                codec: 'avc',\n                type: 'video'\n              });\n            }\n\n            if (programMapTable.audio !== null) {\n              event.tracks.push({\n                timelineStartInfo: {\n                  baseMediaDecodeTime: 0\n                },\n                id: +programMapTable.audio,\n                codec: 'adts',\n                type: 'audio'\n              });\n            }\n\n            segmentHadPmt = true;\n            self.trigger('data', event);\n          }\n        })[data.type]();\n      };\n\n      this.reset = function () {\n        video.size = 0;\n        video.data.length = 0;\n        audio.size = 0;\n        audio.data.length = 0;\n        this.trigger('reset');\n      };\n      /**\n       * Flush any remaining input. Video PES packets may be of variable\n       * length. Normally, the start of a new video packet can trigger the\n       * finalization of the previous packet. That is not possible if no\n       * more video is forthcoming, however. In that case, some other\n       * mechanism (like the end of the file) has to be employed. When it is\n       * clear that no additional data is forthcoming, calling this method\n       * will flush the buffered packets.\n       */\n\n\n      this.flushStreams_ = function () {\n        // !!THIS ORDER IS IMPORTANT!!\n        // video first then audio\n        flushStream(video, 'video');\n        flushStream(audio, 'audio');\n        flushStream(timedMetadata, 'timed-metadata');\n      };\n\n      this.flush = function () {\n        // if on flush we haven't had a pmt emitted\n        // and we have a pmt to emit. emit the pmt\n        // so that we trigger a trackinfo downstream.\n        if (!segmentHadPmt && programMapTable) {\n          var pmt = {\n            type: 'metadata',\n            tracks: []\n          }; // translate audio and video streams to tracks\n\n          if (programMapTable.video !== null) {\n            pmt.tracks.push({\n              timelineStartInfo: {\n                baseMediaDecodeTime: 0\n              },\n              id: +programMapTable.video,\n              codec: 'avc',\n              type: 'video'\n            });\n          }\n\n          if (programMapTable.audio !== null) {\n            pmt.tracks.push({\n              timelineStartInfo: {\n                baseMediaDecodeTime: 0\n              },\n              id: +programMapTable.audio,\n              codec: 'adts',\n              type: 'audio'\n            });\n          }\n\n          self.trigger('data', pmt);\n        }\n\n        segmentHadPmt = false;\n        this.flushStreams_();\n        this.trigger('done');\n      };\n    };\n\n    _ElementaryStream.prototype = new stream();\n    var m2ts = {\n      PAT_PID: 0x0000,\n      MP2T_PACKET_LENGTH: MP2T_PACKET_LENGTH$1,\n      TransportPacketStream: _TransportPacketStream,\n      TransportParseStream: _TransportParseStream,\n      ElementaryStream: _ElementaryStream,\n      TimestampRolloverStream: TimestampRolloverStream,\n      CaptionStream: captionStream.CaptionStream,\n      Cea608Stream: captionStream.Cea608Stream,\n      Cea708Stream: captionStream.Cea708Stream,\n      MetadataStream: metadataStream\n    };\n\n    for (var type in streamTypes) {\n      if (streamTypes.hasOwnProperty(type)) {\n        m2ts[type] = streamTypes[type];\n      }\n    }\n\n    var m2ts_1 = m2ts;\n    var ONE_SECOND_IN_TS$2 = clock.ONE_SECOND_IN_TS;\n\n    var _AdtsStream;\n\n    var ADTS_SAMPLING_FREQUENCIES$1 = [96000, 88200, 64000, 48000, 44100, 32000, 24000, 22050, 16000, 12000, 11025, 8000, 7350];\n    /*\n     * Accepts a ElementaryStream and emits data events with parsed\n     * AAC Audio Frames of the individual packets. Input audio in ADTS\n     * format is unpacked and re-emitted as AAC frames.\n     *\n     * @see http://wiki.multimedia.cx/index.php?title=ADTS\n     * @see http://wiki.multimedia.cx/?title=Understanding_AAC\n     */\n\n    _AdtsStream = function AdtsStream(handlePartialSegments) {\n      var buffer,\n          frameNum = 0;\n\n      _AdtsStream.prototype.init.call(this);\n\n      this.skipWarn_ = function (start, end) {\n        this.trigger('log', {\n          level: 'warn',\n          message: \"adts skiping bytes \" + start + \" to \" + end + \" in frame \" + frameNum + \" outside syncword\"\n        });\n      };\n\n      this.push = function (packet) {\n        var i = 0,\n            frameLength,\n            protectionSkipBytes,\n            oldBuffer,\n            sampleCount,\n            adtsFrameDuration;\n\n        if (!handlePartialSegments) {\n          frameNum = 0;\n        }\n\n        if (packet.type !== 'audio') {\n          // ignore non-audio data\n          return;\n        } // Prepend any data in the buffer to the input data so that we can parse\n        // aac frames the cross a PES packet boundary\n\n\n        if (buffer && buffer.length) {\n          oldBuffer = buffer;\n          buffer = new Uint8Array(oldBuffer.byteLength + packet.data.byteLength);\n          buffer.set(oldBuffer);\n          buffer.set(packet.data, oldBuffer.byteLength);\n        } else {\n          buffer = packet.data;\n        } // unpack any ADTS frames which have been fully received\n        // for details on the ADTS header, see http://wiki.multimedia.cx/index.php?title=ADTS\n\n\n        var skip; // We use i + 7 here because we want to be able to parse the entire header.\n        // If we don't have enough bytes to do that, then we definitely won't have a full frame.\n\n        while (i + 7 < buffer.length) {\n          // Look for the start of an ADTS header..\n          if (buffer[i] !== 0xFF || (buffer[i + 1] & 0xF6) !== 0xF0) {\n            if (typeof skip !== 'number') {\n              skip = i;\n            } // If a valid header was not found,  jump one forward and attempt to\n            // find a valid ADTS header starting at the next byte\n\n\n            i++;\n            continue;\n          }\n\n          if (typeof skip === 'number') {\n            this.skipWarn_(skip, i);\n            skip = null;\n          } // The protection skip bit tells us if we have 2 bytes of CRC data at the\n          // end of the ADTS header\n\n\n          protectionSkipBytes = (~buffer[i + 1] & 0x01) * 2; // Frame length is a 13 bit integer starting 16 bits from the\n          // end of the sync sequence\n          // NOTE: frame length includes the size of the header\n\n          frameLength = (buffer[i + 3] & 0x03) << 11 | buffer[i + 4] << 3 | (buffer[i + 5] & 0xe0) >> 5;\n          sampleCount = ((buffer[i + 6] & 0x03) + 1) * 1024;\n          adtsFrameDuration = sampleCount * ONE_SECOND_IN_TS$2 / ADTS_SAMPLING_FREQUENCIES$1[(buffer[i + 2] & 0x3c) >>> 2]; // If we don't have enough data to actually finish this ADTS frame,\n          // then we have to wait for more data\n\n          if (buffer.byteLength - i < frameLength) {\n            break;\n          } // Otherwise, deliver the complete AAC frame\n\n\n          this.trigger('data', {\n            pts: packet.pts + frameNum * adtsFrameDuration,\n            dts: packet.dts + frameNum * adtsFrameDuration,\n            sampleCount: sampleCount,\n            audioobjecttype: (buffer[i + 2] >>> 6 & 0x03) + 1,\n            channelcount: (buffer[i + 2] & 1) << 2 | (buffer[i + 3] & 0xc0) >>> 6,\n            samplerate: ADTS_SAMPLING_FREQUENCIES$1[(buffer[i + 2] & 0x3c) >>> 2],\n            samplingfrequencyindex: (buffer[i + 2] & 0x3c) >>> 2,\n            // assume ISO/IEC 14496-12 AudioSampleEntry default of 16\n            samplesize: 16,\n            // data is the frame without it's header\n            data: buffer.subarray(i + 7 + protectionSkipBytes, i + frameLength)\n          });\n          frameNum++;\n          i += frameLength;\n        }\n\n        if (typeof skip === 'number') {\n          this.skipWarn_(skip, i);\n          skip = null;\n        } // remove processed bytes from the buffer.\n\n\n        buffer = buffer.subarray(i);\n      };\n\n      this.flush = function () {\n        frameNum = 0;\n        this.trigger('done');\n      };\n\n      this.reset = function () {\n        buffer = void 0;\n        this.trigger('reset');\n      };\n\n      this.endTimeline = function () {\n        buffer = void 0;\n        this.trigger('endedtimeline');\n      };\n    };\n\n    _AdtsStream.prototype = new stream();\n    var adts = _AdtsStream;\n    /**\n     * mux.js\n     *\n     * Copyright (c) Brightcove\n     * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE\n     */\n\n    var ExpGolomb;\n    /**\n     * Parser for exponential Golomb codes, a variable-bitwidth number encoding\n     * scheme used by h264.\n     */\n\n    ExpGolomb = function ExpGolomb(workingData) {\n      var // the number of bytes left to examine in workingData\n      workingBytesAvailable = workingData.byteLength,\n          // the current word being examined\n      workingWord = 0,\n          // :uint\n      // the number of bits left to examine in the current word\n      workingBitsAvailable = 0; // :uint;\n      // ():uint\n\n      this.length = function () {\n        return 8 * workingBytesAvailable;\n      }; // ():uint\n\n\n      this.bitsAvailable = function () {\n        return 8 * workingBytesAvailable + workingBitsAvailable;\n      }; // ():void\n\n\n      this.loadWord = function () {\n        var position = workingData.byteLength - workingBytesAvailable,\n            workingBytes = new Uint8Array(4),\n            availableBytes = Math.min(4, workingBytesAvailable);\n\n        if (availableBytes === 0) {\n          throw new Error('no bytes available');\n        }\n\n        workingBytes.set(workingData.subarray(position, position + availableBytes));\n        workingWord = new DataView(workingBytes.buffer).getUint32(0); // track the amount of workingData that has been processed\n\n        workingBitsAvailable = availableBytes * 8;\n        workingBytesAvailable -= availableBytes;\n      }; // (count:int):void\n\n\n      this.skipBits = function (count) {\n        var skipBytes; // :int\n\n        if (workingBitsAvailable > count) {\n          workingWord <<= count;\n          workingBitsAvailable -= count;\n        } else {\n          count -= workingBitsAvailable;\n          skipBytes = Math.floor(count / 8);\n          count -= skipBytes * 8;\n          workingBytesAvailable -= skipBytes;\n          this.loadWord();\n          workingWord <<= count;\n          workingBitsAvailable -= count;\n        }\n      }; // (size:int):uint\n\n\n      this.readBits = function (size) {\n        var bits = Math.min(workingBitsAvailable, size),\n            // :uint\n        valu = workingWord >>> 32 - bits; // :uint\n        // if size > 31, handle error\n\n        workingBitsAvailable -= bits;\n\n        if (workingBitsAvailable > 0) {\n          workingWord <<= bits;\n        } else if (workingBytesAvailable > 0) {\n          this.loadWord();\n        }\n\n        bits = size - bits;\n\n        if (bits > 0) {\n          return valu << bits | this.readBits(bits);\n        }\n\n        return valu;\n      }; // ():uint\n\n\n      this.skipLeadingZeros = function () {\n        var leadingZeroCount; // :uint\n\n        for (leadingZeroCount = 0; leadingZeroCount < workingBitsAvailable; ++leadingZeroCount) {\n          if ((workingWord & 0x80000000 >>> leadingZeroCount) !== 0) {\n            // the first bit of working word is 1\n            workingWord <<= leadingZeroCount;\n            workingBitsAvailable -= leadingZeroCount;\n            return leadingZeroCount;\n          }\n        } // we exhausted workingWord and still have not found a 1\n\n\n        this.loadWord();\n        return leadingZeroCount + this.skipLeadingZeros();\n      }; // ():void\n\n\n      this.skipUnsignedExpGolomb = function () {\n        this.skipBits(1 + this.skipLeadingZeros());\n      }; // ():void\n\n\n      this.skipExpGolomb = function () {\n        this.skipBits(1 + this.skipLeadingZeros());\n      }; // ():uint\n\n\n      this.readUnsignedExpGolomb = function () {\n        var clz = this.skipLeadingZeros(); // :uint\n\n        return this.readBits(clz + 1) - 1;\n      }; // ():int\n\n\n      this.readExpGolomb = function () {\n        var valu = this.readUnsignedExpGolomb(); // :int\n\n        if (0x01 & valu) {\n          // the number is odd if the low order bit is set\n          return 1 + valu >>> 1; // add 1 to make it even, and divide by 2\n        }\n\n        return -1 * (valu >>> 1); // divide by two then make it negative\n      }; // Some convenience functions\n      // :Boolean\n\n\n      this.readBoolean = function () {\n        return this.readBits(1) === 1;\n      }; // ():int\n\n\n      this.readUnsignedByte = function () {\n        return this.readBits(8);\n      };\n\n      this.loadWord();\n    };\n\n    var expGolomb = ExpGolomb;\n\n    var _H264Stream, _NalByteStream;\n\n    var PROFILES_WITH_OPTIONAL_SPS_DATA;\n    /**\n     * Accepts a NAL unit byte stream and unpacks the embedded NAL units.\n     */\n\n    _NalByteStream = function NalByteStream() {\n      var syncPoint = 0,\n          i,\n          buffer;\n\n      _NalByteStream.prototype.init.call(this);\n      /*\n       * Scans a byte stream and triggers a data event with the NAL units found.\n       * @param {Object} data Event received from H264Stream\n       * @param {Uint8Array} data.data The h264 byte stream to be scanned\n       *\n       * @see H264Stream.push\n       */\n\n\n      this.push = function (data) {\n        var swapBuffer;\n\n        if (!buffer) {\n          buffer = data.data;\n        } else {\n          swapBuffer = new Uint8Array(buffer.byteLength + data.data.byteLength);\n          swapBuffer.set(buffer);\n          swapBuffer.set(data.data, buffer.byteLength);\n          buffer = swapBuffer;\n        }\n\n        var len = buffer.byteLength; // Rec. ITU-T H.264, Annex B\n        // scan for NAL unit boundaries\n        // a match looks like this:\n        // 0 0 1 .. NAL .. 0 0 1\n        // ^ sync point        ^ i\n        // or this:\n        // 0 0 1 .. NAL .. 0 0 0\n        // ^ sync point        ^ i\n        // advance the sync point to a NAL start, if necessary\n\n        for (; syncPoint < len - 3; syncPoint++) {\n          if (buffer[syncPoint + 2] === 1) {\n            // the sync point is properly aligned\n            i = syncPoint + 5;\n            break;\n          }\n        }\n\n        while (i < len) {\n          // look at the current byte to determine if we've hit the end of\n          // a NAL unit boundary\n          switch (buffer[i]) {\n            case 0:\n              // skip past non-sync sequences\n              if (buffer[i - 1] !== 0) {\n                i += 2;\n                break;\n              } else if (buffer[i - 2] !== 0) {\n                i++;\n                break;\n              } // deliver the NAL unit if it isn't empty\n\n\n              if (syncPoint + 3 !== i - 2) {\n                this.trigger('data', buffer.subarray(syncPoint + 3, i - 2));\n              } // drop trailing zeroes\n\n\n              do {\n                i++;\n              } while (buffer[i] !== 1 && i < len);\n\n              syncPoint = i - 2;\n              i += 3;\n              break;\n\n            case 1:\n              // skip past non-sync sequences\n              if (buffer[i - 1] !== 0 || buffer[i - 2] !== 0) {\n                i += 3;\n                break;\n              } // deliver the NAL unit\n\n\n              this.trigger('data', buffer.subarray(syncPoint + 3, i - 2));\n              syncPoint = i - 2;\n              i += 3;\n              break;\n\n            default:\n              // the current byte isn't a one or zero, so it cannot be part\n              // of a sync sequence\n              i += 3;\n              break;\n          }\n        } // filter out the NAL units that were delivered\n\n\n        buffer = buffer.subarray(syncPoint);\n        i -= syncPoint;\n        syncPoint = 0;\n      };\n\n      this.reset = function () {\n        buffer = null;\n        syncPoint = 0;\n        this.trigger('reset');\n      };\n\n      this.flush = function () {\n        // deliver the last buffered NAL unit\n        if (buffer && buffer.byteLength > 3) {\n          this.trigger('data', buffer.subarray(syncPoint + 3));\n        } // reset the stream state\n\n\n        buffer = null;\n        syncPoint = 0;\n        this.trigger('done');\n      };\n\n      this.endTimeline = function () {\n        this.flush();\n        this.trigger('endedtimeline');\n      };\n    };\n\n    _NalByteStream.prototype = new stream(); // values of profile_idc that indicate additional fields are included in the SPS\n    // see Recommendation ITU-T H.264 (4/2013),\n    // 7.3.2.1.1 Sequence parameter set data syntax\n\n    PROFILES_WITH_OPTIONAL_SPS_DATA = {\n      100: true,\n      110: true,\n      122: true,\n      244: true,\n      44: true,\n      83: true,\n      86: true,\n      118: true,\n      128: true,\n      // TODO: the three profiles below don't\n      // appear to have sps data in the specificiation anymore?\n      138: true,\n      139: true,\n      134: true\n    };\n    /**\n     * Accepts input from a ElementaryStream and produces H.264 NAL unit data\n     * events.\n     */\n\n    _H264Stream = function H264Stream() {\n      var nalByteStream = new _NalByteStream(),\n          self,\n          trackId,\n          currentPts,\n          currentDts,\n          discardEmulationPreventionBytes,\n          readSequenceParameterSet,\n          skipScalingList;\n\n      _H264Stream.prototype.init.call(this);\n\n      self = this;\n      /*\n       * Pushes a packet from a stream onto the NalByteStream\n       *\n       * @param {Object} packet - A packet received from a stream\n       * @param {Uint8Array} packet.data - The raw bytes of the packet\n       * @param {Number} packet.dts - Decode timestamp of the packet\n       * @param {Number} packet.pts - Presentation timestamp of the packet\n       * @param {Number} packet.trackId - The id of the h264 track this packet came from\n       * @param {('video'|'audio')} packet.type - The type of packet\n       *\n       */\n\n      this.push = function (packet) {\n        if (packet.type !== 'video') {\n          return;\n        }\n\n        trackId = packet.trackId;\n        currentPts = packet.pts;\n        currentDts = packet.dts;\n        nalByteStream.push(packet);\n      };\n      /*\n       * Identify NAL unit types and pass on the NALU, trackId, presentation and decode timestamps\n       * for the NALUs to the next stream component.\n       * Also, preprocess caption and sequence parameter NALUs.\n       *\n       * @param {Uint8Array} data - A NAL unit identified by `NalByteStream.push`\n       * @see NalByteStream.push\n       */\n\n\n      nalByteStream.on('data', function (data) {\n        var event = {\n          trackId: trackId,\n          pts: currentPts,\n          dts: currentDts,\n          data: data,\n          nalUnitTypeCode: data[0] & 0x1f\n        };\n\n        switch (event.nalUnitTypeCode) {\n          case 0x05:\n            event.nalUnitType = 'slice_layer_without_partitioning_rbsp_idr';\n            break;\n\n          case 0x06:\n            event.nalUnitType = 'sei_rbsp';\n            event.escapedRBSP = discardEmulationPreventionBytes(data.subarray(1));\n            break;\n\n          case 0x07:\n            event.nalUnitType = 'seq_parameter_set_rbsp';\n            event.escapedRBSP = discardEmulationPreventionBytes(data.subarray(1));\n            event.config = readSequenceParameterSet(event.escapedRBSP);\n            break;\n\n          case 0x08:\n            event.nalUnitType = 'pic_parameter_set_rbsp';\n            break;\n\n          case 0x09:\n            event.nalUnitType = 'access_unit_delimiter_rbsp';\n            break;\n        } // This triggers data on the H264Stream\n\n\n        self.trigger('data', event);\n      });\n      nalByteStream.on('done', function () {\n        self.trigger('done');\n      });\n      nalByteStream.on('partialdone', function () {\n        self.trigger('partialdone');\n      });\n      nalByteStream.on('reset', function () {\n        self.trigger('reset');\n      });\n      nalByteStream.on('endedtimeline', function () {\n        self.trigger('endedtimeline');\n      });\n\n      this.flush = function () {\n        nalByteStream.flush();\n      };\n\n      this.partialFlush = function () {\n        nalByteStream.partialFlush();\n      };\n\n      this.reset = function () {\n        nalByteStream.reset();\n      };\n\n      this.endTimeline = function () {\n        nalByteStream.endTimeline();\n      };\n      /**\n       * Advance the ExpGolomb decoder past a scaling list. The scaling\n       * list is optionally transmitted as part of a sequence parameter\n       * set and is not relevant to transmuxing.\n       * @param count {number} the number of entries in this scaling list\n       * @param expGolombDecoder {object} an ExpGolomb pointed to the\n       * start of a scaling list\n       * @see Recommendation ITU-T H.264, Section 7.3.2.1.1.1\n       */\n\n\n      skipScalingList = function skipScalingList(count, expGolombDecoder) {\n        var lastScale = 8,\n            nextScale = 8,\n            j,\n            deltaScale;\n\n        for (j = 0; j < count; j++) {\n          if (nextScale !== 0) {\n            deltaScale = expGolombDecoder.readExpGolomb();\n            nextScale = (lastScale + deltaScale + 256) % 256;\n          }\n\n          lastScale = nextScale === 0 ? lastScale : nextScale;\n        }\n      };\n      /**\n       * Expunge any \"Emulation Prevention\" bytes from a \"Raw Byte\n       * Sequence Payload\"\n       * @param data {Uint8Array} the bytes of a RBSP from a NAL\n       * unit\n       * @return {Uint8Array} the RBSP without any Emulation\n       * Prevention Bytes\n       */\n\n\n      discardEmulationPreventionBytes = function discardEmulationPreventionBytes(data) {\n        var length = data.byteLength,\n            emulationPreventionBytesPositions = [],\n            i = 1,\n            newLength,\n            newData; // Find all `Emulation Prevention Bytes`\n\n        while (i < length - 2) {\n          if (data[i] === 0 && data[i + 1] === 0 && data[i + 2] === 0x03) {\n            emulationPreventionBytesPositions.push(i + 2);\n            i += 2;\n          } else {\n            i++;\n          }\n        } // If no Emulation Prevention Bytes were found just return the original\n        // array\n\n\n        if (emulationPreventionBytesPositions.length === 0) {\n          return data;\n        } // Create a new array to hold the NAL unit data\n\n\n        newLength = length - emulationPreventionBytesPositions.length;\n        newData = new Uint8Array(newLength);\n        var sourceIndex = 0;\n\n        for (i = 0; i < newLength; sourceIndex++, i++) {\n          if (sourceIndex === emulationPreventionBytesPositions[0]) {\n            // Skip this byte\n            sourceIndex++; // Remove this position index\n\n            emulationPreventionBytesPositions.shift();\n          }\n\n          newData[i] = data[sourceIndex];\n        }\n\n        return newData;\n      };\n      /**\n       * Read a sequence parameter set and return some interesting video\n       * properties. A sequence parameter set is the H264 metadata that\n       * describes the properties of upcoming video frames.\n       * @param data {Uint8Array} the bytes of a sequence parameter set\n       * @return {object} an object with configuration parsed from the\n       * sequence parameter set, including the dimensions of the\n       * associated video frames.\n       */\n\n\n      readSequenceParameterSet = function readSequenceParameterSet(data) {\n        var frameCropLeftOffset = 0,\n            frameCropRightOffset = 0,\n            frameCropTopOffset = 0,\n            frameCropBottomOffset = 0,\n            expGolombDecoder,\n            profileIdc,\n            levelIdc,\n            profileCompatibility,\n            chromaFormatIdc,\n            picOrderCntType,\n            numRefFramesInPicOrderCntCycle,\n            picWidthInMbsMinus1,\n            picHeightInMapUnitsMinus1,\n            frameMbsOnlyFlag,\n            scalingListCount,\n            sarRatio = [1, 1],\n            aspectRatioIdc,\n            i;\n        expGolombDecoder = new expGolomb(data);\n        profileIdc = expGolombDecoder.readUnsignedByte(); // profile_idc\n\n        profileCompatibility = expGolombDecoder.readUnsignedByte(); // constraint_set[0-5]_flag\n\n        levelIdc = expGolombDecoder.readUnsignedByte(); // level_idc u(8)\n\n        expGolombDecoder.skipUnsignedExpGolomb(); // seq_parameter_set_id\n        // some profiles have more optional data we don't need\n\n        if (PROFILES_WITH_OPTIONAL_SPS_DATA[profileIdc]) {\n          chromaFormatIdc = expGolombDecoder.readUnsignedExpGolomb();\n\n          if (chromaFormatIdc === 3) {\n            expGolombDecoder.skipBits(1); // separate_colour_plane_flag\n          }\n\n          expGolombDecoder.skipUnsignedExpGolomb(); // bit_depth_luma_minus8\n\n          expGolombDecoder.skipUnsignedExpGolomb(); // bit_depth_chroma_minus8\n\n          expGolombDecoder.skipBits(1); // qpprime_y_zero_transform_bypass_flag\n\n          if (expGolombDecoder.readBoolean()) {\n            // seq_scaling_matrix_present_flag\n            scalingListCount = chromaFormatIdc !== 3 ? 8 : 12;\n\n            for (i = 0; i < scalingListCount; i++) {\n              if (expGolombDecoder.readBoolean()) {\n                // seq_scaling_list_present_flag[ i ]\n                if (i < 6) {\n                  skipScalingList(16, expGolombDecoder);\n                } else {\n                  skipScalingList(64, expGolombDecoder);\n                }\n              }\n            }\n          }\n        }\n\n        expGolombDecoder.skipUnsignedExpGolomb(); // log2_max_frame_num_minus4\n\n        picOrderCntType = expGolombDecoder.readUnsignedExpGolomb();\n\n        if (picOrderCntType === 0) {\n          expGolombDecoder.readUnsignedExpGolomb(); // log2_max_pic_order_cnt_lsb_minus4\n        } else if (picOrderCntType === 1) {\n          expGolombDecoder.skipBits(1); // delta_pic_order_always_zero_flag\n\n          expGolombDecoder.skipExpGolomb(); // offset_for_non_ref_pic\n\n          expGolombDecoder.skipExpGolomb(); // offset_for_top_to_bottom_field\n\n          numRefFramesInPicOrderCntCycle = expGolombDecoder.readUnsignedExpGolomb();\n\n          for (i = 0; i < numRefFramesInPicOrderCntCycle; i++) {\n            expGolombDecoder.skipExpGolomb(); // offset_for_ref_frame[ i ]\n          }\n        }\n\n        expGolombDecoder.skipUnsignedExpGolomb(); // max_num_ref_frames\n\n        expGolombDecoder.skipBits(1); // gaps_in_frame_num_value_allowed_flag\n\n        picWidthInMbsMinus1 = expGolombDecoder.readUnsignedExpGolomb();\n        picHeightInMapUnitsMinus1 = expGolombDecoder.readUnsignedExpGolomb();\n        frameMbsOnlyFlag = expGolombDecoder.readBits(1);\n\n        if (frameMbsOnlyFlag === 0) {\n          expGolombDecoder.skipBits(1); // mb_adaptive_frame_field_flag\n        }\n\n        expGolombDecoder.skipBits(1); // direct_8x8_inference_flag\n\n        if (expGolombDecoder.readBoolean()) {\n          // frame_cropping_flag\n          frameCropLeftOffset = expGolombDecoder.readUnsignedExpGolomb();\n          frameCropRightOffset = expGolombDecoder.readUnsignedExpGolomb();\n          frameCropTopOffset = expGolombDecoder.readUnsignedExpGolomb();\n          frameCropBottomOffset = expGolombDecoder.readUnsignedExpGolomb();\n        }\n\n        if (expGolombDecoder.readBoolean()) {\n          // vui_parameters_present_flag\n          if (expGolombDecoder.readBoolean()) {\n            // aspect_ratio_info_present_flag\n            aspectRatioIdc = expGolombDecoder.readUnsignedByte();\n\n            switch (aspectRatioIdc) {\n              case 1:\n                sarRatio = [1, 1];\n                break;\n\n              case 2:\n                sarRatio = [12, 11];\n                break;\n\n              case 3:\n                sarRatio = [10, 11];\n                break;\n\n              case 4:\n                sarRatio = [16, 11];\n                break;\n\n              case 5:\n                sarRatio = [40, 33];\n                break;\n\n              case 6:\n                sarRatio = [24, 11];\n                break;\n\n              case 7:\n                sarRatio = [20, 11];\n                break;\n\n              case 8:\n                sarRatio = [32, 11];\n                break;\n\n              case 9:\n                sarRatio = [80, 33];\n                break;\n\n              case 10:\n                sarRatio = [18, 11];\n                break;\n\n              case 11:\n                sarRatio = [15, 11];\n                break;\n\n              case 12:\n                sarRatio = [64, 33];\n                break;\n\n              case 13:\n                sarRatio = [160, 99];\n                break;\n\n              case 14:\n                sarRatio = [4, 3];\n                break;\n\n              case 15:\n                sarRatio = [3, 2];\n                break;\n\n              case 16:\n                sarRatio = [2, 1];\n                break;\n\n              case 255:\n                {\n                  sarRatio = [expGolombDecoder.readUnsignedByte() << 8 | expGolombDecoder.readUnsignedByte(), expGolombDecoder.readUnsignedByte() << 8 | expGolombDecoder.readUnsignedByte()];\n                  break;\n                }\n            }\n\n            if (sarRatio) {\n              sarRatio[0] / sarRatio[1];\n            }\n          }\n        }\n\n        return {\n          profileIdc: profileIdc,\n          levelIdc: levelIdc,\n          profileCompatibility: profileCompatibility,\n          width: (picWidthInMbsMinus1 + 1) * 16 - frameCropLeftOffset * 2 - frameCropRightOffset * 2,\n          height: (2 - frameMbsOnlyFlag) * (picHeightInMapUnitsMinus1 + 1) * 16 - frameCropTopOffset * 2 - frameCropBottomOffset * 2,\n          // sar is sample aspect ratio\n          sarRatio: sarRatio\n        };\n      };\n    };\n\n    _H264Stream.prototype = new stream();\n    var h264 = {\n      H264Stream: _H264Stream,\n      NalByteStream: _NalByteStream\n    };\n    /**\n     * mux.js\n     *\n     * Copyright (c) Brightcove\n     * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE\n     *\n     * Utilities to detect basic properties and metadata about Aac data.\n     */\n\n    var ADTS_SAMPLING_FREQUENCIES = [96000, 88200, 64000, 48000, 44100, 32000, 24000, 22050, 16000, 12000, 11025, 8000, 7350];\n\n    var parseId3TagSize = function parseId3TagSize(header, byteIndex) {\n      var returnSize = header[byteIndex + 6] << 21 | header[byteIndex + 7] << 14 | header[byteIndex + 8] << 7 | header[byteIndex + 9],\n          flags = header[byteIndex + 5],\n          footerPresent = (flags & 16) >> 4; // if we get a negative returnSize clamp it to 0\n\n      returnSize = returnSize >= 0 ? returnSize : 0;\n\n      if (footerPresent) {\n        return returnSize + 20;\n      }\n\n      return returnSize + 10;\n    };\n\n    var getId3Offset = function getId3Offset(data, offset) {\n      if (data.length - offset < 10 || data[offset] !== 'I'.charCodeAt(0) || data[offset + 1] !== 'D'.charCodeAt(0) || data[offset + 2] !== '3'.charCodeAt(0)) {\n        return offset;\n      }\n\n      offset += parseId3TagSize(data, offset);\n      return getId3Offset(data, offset);\n    }; // TODO: use vhs-utils\n\n\n    var isLikelyAacData$1 = function isLikelyAacData(data) {\n      var offset = getId3Offset(data, 0);\n      return data.length >= offset + 2 && (data[offset] & 0xFF) === 0xFF && (data[offset + 1] & 0xF0) === 0xF0 && // verify that the 2 layer bits are 0, aka this\n      // is not mp3 data but aac data.\n      (data[offset + 1] & 0x16) === 0x10;\n    };\n\n    var parseSyncSafeInteger = function parseSyncSafeInteger(data) {\n      return data[0] << 21 | data[1] << 14 | data[2] << 7 | data[3];\n    }; // return a percent-encoded representation of the specified byte range\n    // @see http://en.wikipedia.org/wiki/Percent-encoding\n\n\n    var percentEncode = function percentEncode(bytes, start, end) {\n      var i,\n          result = '';\n\n      for (i = start; i < end; i++) {\n        result += '%' + ('00' + bytes[i].toString(16)).slice(-2);\n      }\n\n      return result;\n    }; // return the string representation of the specified byte range,\n    // interpreted as ISO-8859-1.\n\n\n    var parseIso88591 = function parseIso88591(bytes, start, end) {\n      return unescape(percentEncode(bytes, start, end)); // jshint ignore:line\n    };\n\n    var parseAdtsSize = function parseAdtsSize(header, byteIndex) {\n      var lowThree = (header[byteIndex + 5] & 0xE0) >> 5,\n          middle = header[byteIndex + 4] << 3,\n          highTwo = header[byteIndex + 3] & 0x3 << 11;\n      return highTwo | middle | lowThree;\n    };\n\n    var parseType$2 = function parseType(header, byteIndex) {\n      if (header[byteIndex] === 'I'.charCodeAt(0) && header[byteIndex + 1] === 'D'.charCodeAt(0) && header[byteIndex + 2] === '3'.charCodeAt(0)) {\n        return 'timed-metadata';\n      } else if (header[byteIndex] & 0xff === 0xff && (header[byteIndex + 1] & 0xf0) === 0xf0) {\n        return 'audio';\n      }\n\n      return null;\n    };\n\n    var parseSampleRate = function parseSampleRate(packet) {\n      var i = 0;\n\n      while (i + 5 < packet.length) {\n        if (packet[i] !== 0xFF || (packet[i + 1] & 0xF6) !== 0xF0) {\n          // If a valid header was not found,  jump one forward and attempt to\n          // find a valid ADTS header starting at the next byte\n          i++;\n          continue;\n        }\n\n        return ADTS_SAMPLING_FREQUENCIES[(packet[i + 2] & 0x3c) >>> 2];\n      }\n\n      return null;\n    };\n\n    var parseAacTimestamp = function parseAacTimestamp(packet) {\n      var frameStart, frameSize, frame, frameHeader; // find the start of the first frame and the end of the tag\n\n      frameStart = 10;\n\n      if (packet[5] & 0x40) {\n        // advance the frame start past the extended header\n        frameStart += 4; // header size field\n\n        frameStart += parseSyncSafeInteger(packet.subarray(10, 14));\n      } // parse one or more ID3 frames\n      // http://id3.org/id3v2.3.0#ID3v2_frame_overview\n\n\n      do {\n        // determine the number of bytes in this frame\n        frameSize = parseSyncSafeInteger(packet.subarray(frameStart + 4, frameStart + 8));\n\n        if (frameSize < 1) {\n          return null;\n        }\n\n        frameHeader = String.fromCharCode(packet[frameStart], packet[frameStart + 1], packet[frameStart + 2], packet[frameStart + 3]);\n\n        if (frameHeader === 'PRIV') {\n          frame = packet.subarray(frameStart + 10, frameStart + frameSize + 10);\n\n          for (var i = 0; i < frame.byteLength; i++) {\n            if (frame[i] === 0) {\n              var owner = parseIso88591(frame, 0, i);\n\n              if (owner === 'com.apple.streaming.transportStreamTimestamp') {\n                var d = frame.subarray(i + 1);\n                var size = (d[3] & 0x01) << 30 | d[4] << 22 | d[5] << 14 | d[6] << 6 | d[7] >>> 2;\n                size *= 4;\n                size += d[7] & 0x03;\n                return size;\n              }\n\n              break;\n            }\n          }\n        }\n\n        frameStart += 10; // advance past the frame header\n\n        frameStart += frameSize; // advance past the frame body\n      } while (frameStart < packet.byteLength);\n\n      return null;\n    };\n\n    var utils = {\n      isLikelyAacData: isLikelyAacData$1,\n      parseId3TagSize: parseId3TagSize,\n      parseAdtsSize: parseAdtsSize,\n      parseType: parseType$2,\n      parseSampleRate: parseSampleRate,\n      parseAacTimestamp: parseAacTimestamp\n    };\n\n    var _AacStream;\n    /**\n     * Splits an incoming stream of binary data into ADTS and ID3 Frames.\n     */\n\n\n    _AacStream = function AacStream() {\n      var everything = new Uint8Array(),\n          timeStamp = 0;\n\n      _AacStream.prototype.init.call(this);\n\n      this.setTimestamp = function (timestamp) {\n        timeStamp = timestamp;\n      };\n\n      this.push = function (bytes) {\n        var frameSize = 0,\n            byteIndex = 0,\n            bytesLeft,\n            chunk,\n            packet,\n            tempLength; // If there are bytes remaining from the last segment, prepend them to the\n        // bytes that were pushed in\n\n        if (everything.length) {\n          tempLength = everything.length;\n          everything = new Uint8Array(bytes.byteLength + tempLength);\n          everything.set(everything.subarray(0, tempLength));\n          everything.set(bytes, tempLength);\n        } else {\n          everything = bytes;\n        }\n\n        while (everything.length - byteIndex >= 3) {\n          if (everything[byteIndex] === 'I'.charCodeAt(0) && everything[byteIndex + 1] === 'D'.charCodeAt(0) && everything[byteIndex + 2] === '3'.charCodeAt(0)) {\n            // Exit early because we don't have enough to parse\n            // the ID3 tag header\n            if (everything.length - byteIndex < 10) {\n              break;\n            } // check framesize\n\n\n            frameSize = utils.parseId3TagSize(everything, byteIndex); // Exit early if we don't have enough in the buffer\n            // to emit a full packet\n            // Add to byteIndex to support multiple ID3 tags in sequence\n\n            if (byteIndex + frameSize > everything.length) {\n              break;\n            }\n\n            chunk = {\n              type: 'timed-metadata',\n              data: everything.subarray(byteIndex, byteIndex + frameSize)\n            };\n            this.trigger('data', chunk);\n            byteIndex += frameSize;\n            continue;\n          } else if ((everything[byteIndex] & 0xff) === 0xff && (everything[byteIndex + 1] & 0xf0) === 0xf0) {\n            // Exit early because we don't have enough to parse\n            // the ADTS frame header\n            if (everything.length - byteIndex < 7) {\n              break;\n            }\n\n            frameSize = utils.parseAdtsSize(everything, byteIndex); // Exit early if we don't have enough in the buffer\n            // to emit a full packet\n\n            if (byteIndex + frameSize > everything.length) {\n              break;\n            }\n\n            packet = {\n              type: 'audio',\n              data: everything.subarray(byteIndex, byteIndex + frameSize),\n              pts: timeStamp,\n              dts: timeStamp\n            };\n            this.trigger('data', packet);\n            byteIndex += frameSize;\n            continue;\n          }\n\n          byteIndex++;\n        }\n\n        bytesLeft = everything.length - byteIndex;\n\n        if (bytesLeft > 0) {\n          everything = everything.subarray(byteIndex);\n        } else {\n          everything = new Uint8Array();\n        }\n      };\n\n      this.reset = function () {\n        everything = new Uint8Array();\n        this.trigger('reset');\n      };\n\n      this.endTimeline = function () {\n        everything = new Uint8Array();\n        this.trigger('endedtimeline');\n      };\n    };\n\n    _AacStream.prototype = new stream();\n    var aac = _AacStream; // constants\n\n    var AUDIO_PROPERTIES = ['audioobjecttype', 'channelcount', 'samplerate', 'samplingfrequencyindex', 'samplesize'];\n    var audioProperties = AUDIO_PROPERTIES;\n    var VIDEO_PROPERTIES = ['width', 'height', 'profileIdc', 'levelIdc', 'profileCompatibility', 'sarRatio'];\n    var videoProperties = VIDEO_PROPERTIES;\n    var H264Stream = h264.H264Stream;\n    var isLikelyAacData = utils.isLikelyAacData;\n    var ONE_SECOND_IN_TS$1 = clock.ONE_SECOND_IN_TS; // object types\n\n    var _VideoSegmentStream, _AudioSegmentStream, _Transmuxer, _CoalesceStream;\n\n    var retriggerForStream = function retriggerForStream(key, event) {\n      event.stream = key;\n      this.trigger('log', event);\n    };\n\n    var addPipelineLogRetriggers = function addPipelineLogRetriggers(transmuxer, pipeline) {\n      var keys = Object.keys(pipeline);\n\n      for (var i = 0; i < keys.length; i++) {\n        var key = keys[i]; // skip non-stream keys and headOfPipeline\n        // which is just a duplicate\n\n        if (key === 'headOfPipeline' || !pipeline[key].on) {\n          continue;\n        }\n\n        pipeline[key].on('log', retriggerForStream.bind(transmuxer, key));\n      }\n    };\n    /**\n     * Compare two arrays (even typed) for same-ness\n     */\n\n\n    var arrayEquals = function arrayEquals(a, b) {\n      var i;\n\n      if (a.length !== b.length) {\n        return false;\n      } // compare the value of each element in the array\n\n\n      for (i = 0; i < a.length; i++) {\n        if (a[i] !== b[i]) {\n          return false;\n        }\n      }\n\n      return true;\n    };\n\n    var generateSegmentTimingInfo = function generateSegmentTimingInfo(baseMediaDecodeTime, startDts, startPts, endDts, endPts, prependedContentDuration) {\n      var ptsOffsetFromDts = startPts - startDts,\n          decodeDuration = endDts - startDts,\n          presentationDuration = endPts - startPts; // The PTS and DTS values are based on the actual stream times from the segment,\n      // however, the player time values will reflect a start from the baseMediaDecodeTime.\n      // In order to provide relevant values for the player times, base timing info on the\n      // baseMediaDecodeTime and the DTS and PTS durations of the segment.\n\n      return {\n        start: {\n          dts: baseMediaDecodeTime,\n          pts: baseMediaDecodeTime + ptsOffsetFromDts\n        },\n        end: {\n          dts: baseMediaDecodeTime + decodeDuration,\n          pts: baseMediaDecodeTime + presentationDuration\n        },\n        prependedContentDuration: prependedContentDuration,\n        baseMediaDecodeTime: baseMediaDecodeTime\n      };\n    };\n    /**\n     * Constructs a single-track, ISO BMFF media segment from AAC data\n     * events. The output of this stream can be fed to a SourceBuffer\n     * configured with a suitable initialization segment.\n     * @param track {object} track metadata configuration\n     * @param options {object} transmuxer options object\n     * @param options.keepOriginalTimestamps {boolean} If true, keep the timestamps\n     *        in the source; false to adjust the first segment to start at 0.\n     */\n\n\n    _AudioSegmentStream = function AudioSegmentStream(track, options) {\n      var adtsFrames = [],\n          sequenceNumber,\n          earliestAllowedDts = 0,\n          audioAppendStartTs = 0,\n          videoBaseMediaDecodeTime = Infinity;\n      options = options || {};\n      sequenceNumber = options.firstSequenceNumber || 0;\n\n      _AudioSegmentStream.prototype.init.call(this);\n\n      this.push = function (data) {\n        trackDecodeInfo.collectDtsInfo(track, data);\n\n        if (track) {\n          audioProperties.forEach(function (prop) {\n            track[prop] = data[prop];\n          });\n        } // buffer audio data until end() is called\n\n\n        adtsFrames.push(data);\n      };\n\n      this.setEarliestDts = function (earliestDts) {\n        earliestAllowedDts = earliestDts;\n      };\n\n      this.setVideoBaseMediaDecodeTime = function (baseMediaDecodeTime) {\n        videoBaseMediaDecodeTime = baseMediaDecodeTime;\n      };\n\n      this.setAudioAppendStart = function (timestamp) {\n        audioAppendStartTs = timestamp;\n      };\n\n      this.flush = function () {\n        var frames, moof, mdat, boxes, frameDuration, segmentDuration, videoClockCyclesOfSilencePrefixed; // return early if no audio data has been observed\n\n        if (adtsFrames.length === 0) {\n          this.trigger('done', 'AudioSegmentStream');\n          return;\n        }\n\n        frames = audioFrameUtils.trimAdtsFramesByEarliestDts(adtsFrames, track, earliestAllowedDts);\n        track.baseMediaDecodeTime = trackDecodeInfo.calculateTrackBaseMediaDecodeTime(track, options.keepOriginalTimestamps); // amount of audio filled but the value is in video clock rather than audio clock\n\n        videoClockCyclesOfSilencePrefixed = audioFrameUtils.prefixWithSilence(track, frames, audioAppendStartTs, videoBaseMediaDecodeTime); // we have to build the index from byte locations to\n        // samples (that is, adts frames) in the audio data\n\n        track.samples = audioFrameUtils.generateSampleTable(frames); // concatenate the audio data to constuct the mdat\n\n        mdat = mp4Generator.mdat(audioFrameUtils.concatenateFrameData(frames));\n        adtsFrames = [];\n        moof = mp4Generator.moof(sequenceNumber, [track]);\n        boxes = new Uint8Array(moof.byteLength + mdat.byteLength); // bump the sequence number for next time\n\n        sequenceNumber++;\n        boxes.set(moof);\n        boxes.set(mdat, moof.byteLength);\n        trackDecodeInfo.clearDtsInfo(track);\n        frameDuration = Math.ceil(ONE_SECOND_IN_TS$1 * 1024 / track.samplerate); // TODO this check was added to maintain backwards compatibility (particularly with\n        // tests) on adding the timingInfo event. However, it seems unlikely that there's a\n        // valid use-case where an init segment/data should be triggered without associated\n        // frames. Leaving for now, but should be looked into.\n\n        if (frames.length) {\n          segmentDuration = frames.length * frameDuration;\n          this.trigger('segmentTimingInfo', generateSegmentTimingInfo( // The audio track's baseMediaDecodeTime is in audio clock cycles, but the\n          // frame info is in video clock cycles. Convert to match expectation of\n          // listeners (that all timestamps will be based on video clock cycles).\n          clock.audioTsToVideoTs(track.baseMediaDecodeTime, track.samplerate), // frame times are already in video clock, as is segment duration\n          frames[0].dts, frames[0].pts, frames[0].dts + segmentDuration, frames[0].pts + segmentDuration, videoClockCyclesOfSilencePrefixed || 0));\n          this.trigger('timingInfo', {\n            start: frames[0].pts,\n            end: frames[0].pts + segmentDuration\n          });\n        }\n\n        this.trigger('data', {\n          track: track,\n          boxes: boxes\n        });\n        this.trigger('done', 'AudioSegmentStream');\n      };\n\n      this.reset = function () {\n        trackDecodeInfo.clearDtsInfo(track);\n        adtsFrames = [];\n        this.trigger('reset');\n      };\n    };\n\n    _AudioSegmentStream.prototype = new stream();\n    /**\n     * Constructs a single-track, ISO BMFF media segment from H264 data\n     * events. The output of this stream can be fed to a SourceBuffer\n     * configured with a suitable initialization segment.\n     * @param track {object} track metadata configuration\n     * @param options {object} transmuxer options object\n     * @param options.alignGopsAtEnd {boolean} If true, start from the end of the\n     *        gopsToAlignWith list when attempting to align gop pts\n     * @param options.keepOriginalTimestamps {boolean} If true, keep the timestamps\n     *        in the source; false to adjust the first segment to start at 0.\n     */\n\n    _VideoSegmentStream = function VideoSegmentStream(track, options) {\n      var sequenceNumber,\n          nalUnits = [],\n          gopsToAlignWith = [],\n          config,\n          pps;\n      options = options || {};\n      sequenceNumber = options.firstSequenceNumber || 0;\n\n      _VideoSegmentStream.prototype.init.call(this);\n\n      delete track.minPTS;\n      this.gopCache_ = [];\n      /**\n        * Constructs a ISO BMFF segment given H264 nalUnits\n        * @param {Object} nalUnit A data event representing a nalUnit\n        * @param {String} nalUnit.nalUnitType\n        * @param {Object} nalUnit.config Properties for a mp4 track\n        * @param {Uint8Array} nalUnit.data The nalUnit bytes\n        * @see lib/codecs/h264.js\n       **/\n\n      this.push = function (nalUnit) {\n        trackDecodeInfo.collectDtsInfo(track, nalUnit); // record the track config\n\n        if (nalUnit.nalUnitType === 'seq_parameter_set_rbsp' && !config) {\n          config = nalUnit.config;\n          track.sps = [nalUnit.data];\n          videoProperties.forEach(function (prop) {\n            track[prop] = config[prop];\n          }, this);\n        }\n\n        if (nalUnit.nalUnitType === 'pic_parameter_set_rbsp' && !pps) {\n          pps = nalUnit.data;\n          track.pps = [nalUnit.data];\n        } // buffer video until flush() is called\n\n\n        nalUnits.push(nalUnit);\n      };\n      /**\n        * Pass constructed ISO BMFF track and boxes on to the\n        * next stream in the pipeline\n       **/\n\n\n      this.flush = function () {\n        var frames,\n            gopForFusion,\n            gops,\n            moof,\n            mdat,\n            boxes,\n            prependedContentDuration = 0,\n            firstGop,\n            lastGop; // Throw away nalUnits at the start of the byte stream until\n        // we find the first AUD\n\n        while (nalUnits.length) {\n          if (nalUnits[0].nalUnitType === 'access_unit_delimiter_rbsp') {\n            break;\n          }\n\n          nalUnits.shift();\n        } // Return early if no video data has been observed\n\n\n        if (nalUnits.length === 0) {\n          this.resetStream_();\n          this.trigger('done', 'VideoSegmentStream');\n          return;\n        } // Organize the raw nal-units into arrays that represent\n        // higher-level constructs such as frames and gops\n        // (group-of-pictures)\n\n\n        frames = frameUtils.groupNalsIntoFrames(nalUnits);\n        gops = frameUtils.groupFramesIntoGops(frames); // If the first frame of this fragment is not a keyframe we have\n        // a problem since MSE (on Chrome) requires a leading keyframe.\n        //\n        // We have two approaches to repairing this situation:\n        // 1) GOP-FUSION:\n        //    This is where we keep track of the GOPS (group-of-pictures)\n        //    from previous fragments and attempt to find one that we can\n        //    prepend to the current fragment in order to create a valid\n        //    fragment.\n        // 2) KEYFRAME-PULLING:\n        //    Here we search for the first keyframe in the fragment and\n        //    throw away all the frames between the start of the fragment\n        //    and that keyframe. We then extend the duration and pull the\n        //    PTS of the keyframe forward so that it covers the time range\n        //    of the frames that were disposed of.\n        //\n        // #1 is far prefereable over #2 which can cause \"stuttering\" but\n        // requires more things to be just right.\n\n        if (!gops[0][0].keyFrame) {\n          // Search for a gop for fusion from our gopCache\n          gopForFusion = this.getGopForFusion_(nalUnits[0], track);\n\n          if (gopForFusion) {\n            // in order to provide more accurate timing information about the segment, save\n            // the number of seconds prepended to the original segment due to GOP fusion\n            prependedContentDuration = gopForFusion.duration;\n            gops.unshift(gopForFusion); // Adjust Gops' metadata to account for the inclusion of the\n            // new gop at the beginning\n\n            gops.byteLength += gopForFusion.byteLength;\n            gops.nalCount += gopForFusion.nalCount;\n            gops.pts = gopForFusion.pts;\n            gops.dts = gopForFusion.dts;\n            gops.duration += gopForFusion.duration;\n          } else {\n            // If we didn't find a candidate gop fall back to keyframe-pulling\n            gops = frameUtils.extendFirstKeyFrame(gops);\n          }\n        } // Trim gops to align with gopsToAlignWith\n\n\n        if (gopsToAlignWith.length) {\n          var alignedGops;\n\n          if (options.alignGopsAtEnd) {\n            alignedGops = this.alignGopsAtEnd_(gops);\n          } else {\n            alignedGops = this.alignGopsAtStart_(gops);\n          }\n\n          if (!alignedGops) {\n            // save all the nals in the last GOP into the gop cache\n            this.gopCache_.unshift({\n              gop: gops.pop(),\n              pps: track.pps,\n              sps: track.sps\n            }); // Keep a maximum of 6 GOPs in the cache\n\n            this.gopCache_.length = Math.min(6, this.gopCache_.length); // Clear nalUnits\n\n            nalUnits = []; // return early no gops can be aligned with desired gopsToAlignWith\n\n            this.resetStream_();\n            this.trigger('done', 'VideoSegmentStream');\n            return;\n          } // Some gops were trimmed. clear dts info so minSegmentDts and pts are correct\n          // when recalculated before sending off to CoalesceStream\n\n\n          trackDecodeInfo.clearDtsInfo(track);\n          gops = alignedGops;\n        }\n\n        trackDecodeInfo.collectDtsInfo(track, gops); // First, we have to build the index from byte locations to\n        // samples (that is, frames) in the video data\n\n        track.samples = frameUtils.generateSampleTable(gops); // Concatenate the video data and construct the mdat\n\n        mdat = mp4Generator.mdat(frameUtils.concatenateNalData(gops));\n        track.baseMediaDecodeTime = trackDecodeInfo.calculateTrackBaseMediaDecodeTime(track, options.keepOriginalTimestamps);\n        this.trigger('processedGopsInfo', gops.map(function (gop) {\n          return {\n            pts: gop.pts,\n            dts: gop.dts,\n            byteLength: gop.byteLength\n          };\n        }));\n        firstGop = gops[0];\n        lastGop = gops[gops.length - 1];\n        this.trigger('segmentTimingInfo', generateSegmentTimingInfo(track.baseMediaDecodeTime, firstGop.dts, firstGop.pts, lastGop.dts + lastGop.duration, lastGop.pts + lastGop.duration, prependedContentDuration));\n        this.trigger('timingInfo', {\n          start: gops[0].pts,\n          end: gops[gops.length - 1].pts + gops[gops.length - 1].duration\n        }); // save all the nals in the last GOP into the gop cache\n\n        this.gopCache_.unshift({\n          gop: gops.pop(),\n          pps: track.pps,\n          sps: track.sps\n        }); // Keep a maximum of 6 GOPs in the cache\n\n        this.gopCache_.length = Math.min(6, this.gopCache_.length); // Clear nalUnits\n\n        nalUnits = [];\n        this.trigger('baseMediaDecodeTime', track.baseMediaDecodeTime);\n        this.trigger('timelineStartInfo', track.timelineStartInfo);\n        moof = mp4Generator.moof(sequenceNumber, [track]); // it would be great to allocate this array up front instead of\n        // throwing away hundreds of media segment fragments\n\n        boxes = new Uint8Array(moof.byteLength + mdat.byteLength); // Bump the sequence number for next time\n\n        sequenceNumber++;\n        boxes.set(moof);\n        boxes.set(mdat, moof.byteLength);\n        this.trigger('data', {\n          track: track,\n          boxes: boxes\n        });\n        this.resetStream_(); // Continue with the flush process now\n\n        this.trigger('done', 'VideoSegmentStream');\n      };\n\n      this.reset = function () {\n        this.resetStream_();\n        nalUnits = [];\n        this.gopCache_.length = 0;\n        gopsToAlignWith.length = 0;\n        this.trigger('reset');\n      };\n\n      this.resetStream_ = function () {\n        trackDecodeInfo.clearDtsInfo(track); // reset config and pps because they may differ across segments\n        // for instance, when we are rendition switching\n\n        config = undefined;\n        pps = undefined;\n      }; // Search for a candidate Gop for gop-fusion from the gop cache and\n      // return it or return null if no good candidate was found\n\n\n      this.getGopForFusion_ = function (nalUnit) {\n        var halfSecond = 45000,\n            // Half-a-second in a 90khz clock\n        allowableOverlap = 10000,\n            // About 3 frames @ 30fps\n        nearestDistance = Infinity,\n            dtsDistance,\n            nearestGopObj,\n            currentGop,\n            currentGopObj,\n            i; // Search for the GOP nearest to the beginning of this nal unit\n\n        for (i = 0; i < this.gopCache_.length; i++) {\n          currentGopObj = this.gopCache_[i];\n          currentGop = currentGopObj.gop; // Reject Gops with different SPS or PPS\n\n          if (!(track.pps && arrayEquals(track.pps[0], currentGopObj.pps[0])) || !(track.sps && arrayEquals(track.sps[0], currentGopObj.sps[0]))) {\n            continue;\n          } // Reject Gops that would require a negative baseMediaDecodeTime\n\n\n          if (currentGop.dts < track.timelineStartInfo.dts) {\n            continue;\n          } // The distance between the end of the gop and the start of the nalUnit\n\n\n          dtsDistance = nalUnit.dts - currentGop.dts - currentGop.duration; // Only consider GOPS that start before the nal unit and end within\n          // a half-second of the nal unit\n\n          if (dtsDistance >= -allowableOverlap && dtsDistance <= halfSecond) {\n            // Always use the closest GOP we found if there is more than\n            // one candidate\n            if (!nearestGopObj || nearestDistance > dtsDistance) {\n              nearestGopObj = currentGopObj;\n              nearestDistance = dtsDistance;\n            }\n          }\n        }\n\n        if (nearestGopObj) {\n          return nearestGopObj.gop;\n        }\n\n        return null;\n      }; // trim gop list to the first gop found that has a matching pts with a gop in the list\n      // of gopsToAlignWith starting from the START of the list\n\n\n      this.alignGopsAtStart_ = function (gops) {\n        var alignIndex, gopIndex, align, gop, byteLength, nalCount, duration, alignedGops;\n        byteLength = gops.byteLength;\n        nalCount = gops.nalCount;\n        duration = gops.duration;\n        alignIndex = gopIndex = 0;\n\n        while (alignIndex < gopsToAlignWith.length && gopIndex < gops.length) {\n          align = gopsToAlignWith[alignIndex];\n          gop = gops[gopIndex];\n\n          if (align.pts === gop.pts) {\n            break;\n          }\n\n          if (gop.pts > align.pts) {\n            // this current gop starts after the current gop we want to align on, so increment\n            // align index\n            alignIndex++;\n            continue;\n          } // current gop starts before the current gop we want to align on. so increment gop\n          // index\n\n\n          gopIndex++;\n          byteLength -= gop.byteLength;\n          nalCount -= gop.nalCount;\n          duration -= gop.duration;\n        }\n\n        if (gopIndex === 0) {\n          // no gops to trim\n          return gops;\n        }\n\n        if (gopIndex === gops.length) {\n          // all gops trimmed, skip appending all gops\n          return null;\n        }\n\n        alignedGops = gops.slice(gopIndex);\n        alignedGops.byteLength = byteLength;\n        alignedGops.duration = duration;\n        alignedGops.nalCount = nalCount;\n        alignedGops.pts = alignedGops[0].pts;\n        alignedGops.dts = alignedGops[0].dts;\n        return alignedGops;\n      }; // trim gop list to the first gop found that has a matching pts with a gop in the list\n      // of gopsToAlignWith starting from the END of the list\n\n\n      this.alignGopsAtEnd_ = function (gops) {\n        var alignIndex, gopIndex, align, gop, alignEndIndex, matchFound;\n        alignIndex = gopsToAlignWith.length - 1;\n        gopIndex = gops.length - 1;\n        alignEndIndex = null;\n        matchFound = false;\n\n        while (alignIndex >= 0 && gopIndex >= 0) {\n          align = gopsToAlignWith[alignIndex];\n          gop = gops[gopIndex];\n\n          if (align.pts === gop.pts) {\n            matchFound = true;\n            break;\n          }\n\n          if (align.pts > gop.pts) {\n            alignIndex--;\n            continue;\n          }\n\n          if (alignIndex === gopsToAlignWith.length - 1) {\n            // gop.pts is greater than the last alignment candidate. If no match is found\n            // by the end of this loop, we still want to append gops that come after this\n            // point\n            alignEndIndex = gopIndex;\n          }\n\n          gopIndex--;\n        }\n\n        if (!matchFound && alignEndIndex === null) {\n          return null;\n        }\n\n        var trimIndex;\n\n        if (matchFound) {\n          trimIndex = gopIndex;\n        } else {\n          trimIndex = alignEndIndex;\n        }\n\n        if (trimIndex === 0) {\n          return gops;\n        }\n\n        var alignedGops = gops.slice(trimIndex);\n        var metadata = alignedGops.reduce(function (total, gop) {\n          total.byteLength += gop.byteLength;\n          total.duration += gop.duration;\n          total.nalCount += gop.nalCount;\n          return total;\n        }, {\n          byteLength: 0,\n          duration: 0,\n          nalCount: 0\n        });\n        alignedGops.byteLength = metadata.byteLength;\n        alignedGops.duration = metadata.duration;\n        alignedGops.nalCount = metadata.nalCount;\n        alignedGops.pts = alignedGops[0].pts;\n        alignedGops.dts = alignedGops[0].dts;\n        return alignedGops;\n      };\n\n      this.alignGopsWith = function (newGopsToAlignWith) {\n        gopsToAlignWith = newGopsToAlignWith;\n      };\n    };\n\n    _VideoSegmentStream.prototype = new stream();\n    /**\n     * A Stream that can combine multiple streams (ie. audio & video)\n     * into a single output segment for MSE. Also supports audio-only\n     * and video-only streams.\n     * @param options {object} transmuxer options object\n     * @param options.keepOriginalTimestamps {boolean} If true, keep the timestamps\n     *        in the source; false to adjust the first segment to start at media timeline start.\n     */\n\n    _CoalesceStream = function CoalesceStream(options, metadataStream) {\n      // Number of Tracks per output segment\n      // If greater than 1, we combine multiple\n      // tracks into a single segment\n      this.numberOfTracks = 0;\n      this.metadataStream = metadataStream;\n      options = options || {};\n\n      if (typeof options.remux !== 'undefined') {\n        this.remuxTracks = !!options.remux;\n      } else {\n        this.remuxTracks = true;\n      }\n\n      if (typeof options.keepOriginalTimestamps === 'boolean') {\n        this.keepOriginalTimestamps = options.keepOriginalTimestamps;\n      } else {\n        this.keepOriginalTimestamps = false;\n      }\n\n      this.pendingTracks = [];\n      this.videoTrack = null;\n      this.pendingBoxes = [];\n      this.pendingCaptions = [];\n      this.pendingMetadata = [];\n      this.pendingBytes = 0;\n      this.emittedTracks = 0;\n\n      _CoalesceStream.prototype.init.call(this); // Take output from multiple\n\n\n      this.push = function (output) {\n        // buffer incoming captions until the associated video segment\n        // finishes\n        if (output.text) {\n          return this.pendingCaptions.push(output);\n        } // buffer incoming id3 tags until the final flush\n\n\n        if (output.frames) {\n          return this.pendingMetadata.push(output);\n        } // Add this track to the list of pending tracks and store\n        // important information required for the construction of\n        // the final segment\n\n\n        this.pendingTracks.push(output.track);\n        this.pendingBytes += output.boxes.byteLength; // TODO: is there an issue for this against chrome?\n        // We unshift audio and push video because\n        // as of Chrome 75 when switching from\n        // one init segment to another if the video\n        // mdat does not appear after the audio mdat\n        // only audio will play for the duration of our transmux.\n\n        if (output.track.type === 'video') {\n          this.videoTrack = output.track;\n          this.pendingBoxes.push(output.boxes);\n        }\n\n        if (output.track.type === 'audio') {\n          this.audioTrack = output.track;\n          this.pendingBoxes.unshift(output.boxes);\n        }\n      };\n    };\n\n    _CoalesceStream.prototype = new stream();\n\n    _CoalesceStream.prototype.flush = function (flushSource) {\n      var offset = 0,\n          event = {\n        captions: [],\n        captionStreams: {},\n        metadata: [],\n        info: {}\n      },\n          caption,\n          id3,\n          initSegment,\n          timelineStartPts = 0,\n          i;\n\n      if (this.pendingTracks.length < this.numberOfTracks) {\n        if (flushSource !== 'VideoSegmentStream' && flushSource !== 'AudioSegmentStream') {\n          // Return because we haven't received a flush from a data-generating\n          // portion of the segment (meaning that we have only recieved meta-data\n          // or captions.)\n          return;\n        } else if (this.remuxTracks) {\n          // Return until we have enough tracks from the pipeline to remux (if we\n          // are remuxing audio and video into a single MP4)\n          return;\n        } else if (this.pendingTracks.length === 0) {\n          // In the case where we receive a flush without any data having been\n          // received we consider it an emitted track for the purposes of coalescing\n          // `done` events.\n          // We do this for the case where there is an audio and video track in the\n          // segment but no audio data. (seen in several playlists with alternate\n          // audio tracks and no audio present in the main TS segments.)\n          this.emittedTracks++;\n\n          if (this.emittedTracks >= this.numberOfTracks) {\n            this.trigger('done');\n            this.emittedTracks = 0;\n          }\n\n          return;\n        }\n      }\n\n      if (this.videoTrack) {\n        timelineStartPts = this.videoTrack.timelineStartInfo.pts;\n        videoProperties.forEach(function (prop) {\n          event.info[prop] = this.videoTrack[prop];\n        }, this);\n      } else if (this.audioTrack) {\n        timelineStartPts = this.audioTrack.timelineStartInfo.pts;\n        audioProperties.forEach(function (prop) {\n          event.info[prop] = this.audioTrack[prop];\n        }, this);\n      }\n\n      if (this.videoTrack || this.audioTrack) {\n        if (this.pendingTracks.length === 1) {\n          event.type = this.pendingTracks[0].type;\n        } else {\n          event.type = 'combined';\n        }\n\n        this.emittedTracks += this.pendingTracks.length;\n        initSegment = mp4Generator.initSegment(this.pendingTracks); // Create a new typed array to hold the init segment\n\n        event.initSegment = new Uint8Array(initSegment.byteLength); // Create an init segment containing a moov\n        // and track definitions\n\n        event.initSegment.set(initSegment); // Create a new typed array to hold the moof+mdats\n\n        event.data = new Uint8Array(this.pendingBytes); // Append each moof+mdat (one per track) together\n\n        for (i = 0; i < this.pendingBoxes.length; i++) {\n          event.data.set(this.pendingBoxes[i], offset);\n          offset += this.pendingBoxes[i].byteLength;\n        } // Translate caption PTS times into second offsets to match the\n        // video timeline for the segment, and add track info\n\n\n        for (i = 0; i < this.pendingCaptions.length; i++) {\n          caption = this.pendingCaptions[i];\n          caption.startTime = clock.metadataTsToSeconds(caption.startPts, timelineStartPts, this.keepOriginalTimestamps);\n          caption.endTime = clock.metadataTsToSeconds(caption.endPts, timelineStartPts, this.keepOriginalTimestamps);\n          event.captionStreams[caption.stream] = true;\n          event.captions.push(caption);\n        } // Translate ID3 frame PTS times into second offsets to match the\n        // video timeline for the segment\n\n\n        for (i = 0; i < this.pendingMetadata.length; i++) {\n          id3 = this.pendingMetadata[i];\n          id3.cueTime = clock.metadataTsToSeconds(id3.pts, timelineStartPts, this.keepOriginalTimestamps);\n          event.metadata.push(id3);\n        } // We add this to every single emitted segment even though we only need\n        // it for the first\n\n\n        event.metadata.dispatchType = this.metadataStream.dispatchType; // Reset stream state\n\n        this.pendingTracks.length = 0;\n        this.videoTrack = null;\n        this.pendingBoxes.length = 0;\n        this.pendingCaptions.length = 0;\n        this.pendingBytes = 0;\n        this.pendingMetadata.length = 0; // Emit the built segment\n        // We include captions and ID3 tags for backwards compatibility,\n        // ideally we should send only video and audio in the data event\n\n        this.trigger('data', event); // Emit each caption to the outside world\n        // Ideally, this would happen immediately on parsing captions,\n        // but we need to ensure that video data is sent back first\n        // so that caption timing can be adjusted to match video timing\n\n        for (i = 0; i < event.captions.length; i++) {\n          caption = event.captions[i];\n          this.trigger('caption', caption);\n        } // Emit each id3 tag to the outside world\n        // Ideally, this would happen immediately on parsing the tag,\n        // but we need to ensure that video data is sent back first\n        // so that ID3 frame timing can be adjusted to match video timing\n\n\n        for (i = 0; i < event.metadata.length; i++) {\n          id3 = event.metadata[i];\n          this.trigger('id3Frame', id3);\n        }\n      } // Only emit `done` if all tracks have been flushed and emitted\n\n\n      if (this.emittedTracks >= this.numberOfTracks) {\n        this.trigger('done');\n        this.emittedTracks = 0;\n      }\n    };\n\n    _CoalesceStream.prototype.setRemux = function (val) {\n      this.remuxTracks = val;\n    };\n    /**\n     * A Stream that expects MP2T binary data as input and produces\n     * corresponding media segments, suitable for use with Media Source\n     * Extension (MSE) implementations that support the ISO BMFF byte\n     * stream format, like Chrome.\n     */\n\n\n    _Transmuxer = function Transmuxer(options) {\n      var self = this,\n          hasFlushed = true,\n          videoTrack,\n          audioTrack;\n\n      _Transmuxer.prototype.init.call(this);\n\n      options = options || {};\n      this.baseMediaDecodeTime = options.baseMediaDecodeTime || 0;\n      this.transmuxPipeline_ = {};\n\n      this.setupAacPipeline = function () {\n        var pipeline = {};\n        this.transmuxPipeline_ = pipeline;\n        pipeline.type = 'aac';\n        pipeline.metadataStream = new m2ts_1.MetadataStream(); // set up the parsing pipeline\n\n        pipeline.aacStream = new aac();\n        pipeline.audioTimestampRolloverStream = new m2ts_1.TimestampRolloverStream('audio');\n        pipeline.timedMetadataTimestampRolloverStream = new m2ts_1.TimestampRolloverStream('timed-metadata');\n        pipeline.adtsStream = new adts();\n        pipeline.coalesceStream = new _CoalesceStream(options, pipeline.metadataStream);\n        pipeline.headOfPipeline = pipeline.aacStream;\n        pipeline.aacStream.pipe(pipeline.audioTimestampRolloverStream).pipe(pipeline.adtsStream);\n        pipeline.aacStream.pipe(pipeline.timedMetadataTimestampRolloverStream).pipe(pipeline.metadataStream).pipe(pipeline.coalesceStream);\n        pipeline.metadataStream.on('timestamp', function (frame) {\n          pipeline.aacStream.setTimestamp(frame.timeStamp);\n        });\n        pipeline.aacStream.on('data', function (data) {\n          if (data.type !== 'timed-metadata' && data.type !== 'audio' || pipeline.audioSegmentStream) {\n            return;\n          }\n\n          audioTrack = audioTrack || {\n            timelineStartInfo: {\n              baseMediaDecodeTime: self.baseMediaDecodeTime\n            },\n            codec: 'adts',\n            type: 'audio'\n          }; // hook up the audio segment stream to the first track with aac data\n\n          pipeline.coalesceStream.numberOfTracks++;\n          pipeline.audioSegmentStream = new _AudioSegmentStream(audioTrack, options);\n          pipeline.audioSegmentStream.on('log', self.getLogTrigger_('audioSegmentStream'));\n          pipeline.audioSegmentStream.on('timingInfo', self.trigger.bind(self, 'audioTimingInfo')); // Set up the final part of the audio pipeline\n\n          pipeline.adtsStream.pipe(pipeline.audioSegmentStream).pipe(pipeline.coalesceStream); // emit pmt info\n\n          self.trigger('trackinfo', {\n            hasAudio: !!audioTrack,\n            hasVideo: !!videoTrack\n          });\n        }); // Re-emit any data coming from the coalesce stream to the outside world\n\n        pipeline.coalesceStream.on('data', this.trigger.bind(this, 'data')); // Let the consumer know we have finished flushing the entire pipeline\n\n        pipeline.coalesceStream.on('done', this.trigger.bind(this, 'done'));\n        addPipelineLogRetriggers(this, pipeline);\n      };\n\n      this.setupTsPipeline = function () {\n        var pipeline = {};\n        this.transmuxPipeline_ = pipeline;\n        pipeline.type = 'ts';\n        pipeline.metadataStream = new m2ts_1.MetadataStream(); // set up the parsing pipeline\n\n        pipeline.packetStream = new m2ts_1.TransportPacketStream();\n        pipeline.parseStream = new m2ts_1.TransportParseStream();\n        pipeline.elementaryStream = new m2ts_1.ElementaryStream();\n        pipeline.timestampRolloverStream = new m2ts_1.TimestampRolloverStream();\n        pipeline.adtsStream = new adts();\n        pipeline.h264Stream = new H264Stream();\n        pipeline.captionStream = new m2ts_1.CaptionStream(options);\n        pipeline.coalesceStream = new _CoalesceStream(options, pipeline.metadataStream);\n        pipeline.headOfPipeline = pipeline.packetStream; // disassemble MPEG2-TS packets into elementary streams\n\n        pipeline.packetStream.pipe(pipeline.parseStream).pipe(pipeline.elementaryStream).pipe(pipeline.timestampRolloverStream); // !!THIS ORDER IS IMPORTANT!!\n        // demux the streams\n\n        pipeline.timestampRolloverStream.pipe(pipeline.h264Stream);\n        pipeline.timestampRolloverStream.pipe(pipeline.adtsStream);\n        pipeline.timestampRolloverStream.pipe(pipeline.metadataStream).pipe(pipeline.coalesceStream); // Hook up CEA-608/708 caption stream\n\n        pipeline.h264Stream.pipe(pipeline.captionStream).pipe(pipeline.coalesceStream);\n        pipeline.elementaryStream.on('data', function (data) {\n          var i;\n\n          if (data.type === 'metadata') {\n            i = data.tracks.length; // scan the tracks listed in the metadata\n\n            while (i--) {\n              if (!videoTrack && data.tracks[i].type === 'video') {\n                videoTrack = data.tracks[i];\n                videoTrack.timelineStartInfo.baseMediaDecodeTime = self.baseMediaDecodeTime;\n              } else if (!audioTrack && data.tracks[i].type === 'audio') {\n                audioTrack = data.tracks[i];\n                audioTrack.timelineStartInfo.baseMediaDecodeTime = self.baseMediaDecodeTime;\n              }\n            } // hook up the video segment stream to the first track with h264 data\n\n\n            if (videoTrack && !pipeline.videoSegmentStream) {\n              pipeline.coalesceStream.numberOfTracks++;\n              pipeline.videoSegmentStream = new _VideoSegmentStream(videoTrack, options);\n              pipeline.videoSegmentStream.on('log', self.getLogTrigger_('videoSegmentStream'));\n              pipeline.videoSegmentStream.on('timelineStartInfo', function (timelineStartInfo) {\n                // When video emits timelineStartInfo data after a flush, we forward that\n                // info to the AudioSegmentStream, if it exists, because video timeline\n                // data takes precedence.  Do not do this if keepOriginalTimestamps is set,\n                // because this is a particularly subtle form of timestamp alteration.\n                if (audioTrack && !options.keepOriginalTimestamps) {\n                  audioTrack.timelineStartInfo = timelineStartInfo; // On the first segment we trim AAC frames that exist before the\n                  // very earliest DTS we have seen in video because Chrome will\n                  // interpret any video track with a baseMediaDecodeTime that is\n                  // non-zero as a gap.\n\n                  pipeline.audioSegmentStream.setEarliestDts(timelineStartInfo.dts - self.baseMediaDecodeTime);\n                }\n              });\n              pipeline.videoSegmentStream.on('processedGopsInfo', self.trigger.bind(self, 'gopInfo'));\n              pipeline.videoSegmentStream.on('segmentTimingInfo', self.trigger.bind(self, 'videoSegmentTimingInfo'));\n              pipeline.videoSegmentStream.on('baseMediaDecodeTime', function (baseMediaDecodeTime) {\n                if (audioTrack) {\n                  pipeline.audioSegmentStream.setVideoBaseMediaDecodeTime(baseMediaDecodeTime);\n                }\n              });\n              pipeline.videoSegmentStream.on('timingInfo', self.trigger.bind(self, 'videoTimingInfo')); // Set up the final part of the video pipeline\n\n              pipeline.h264Stream.pipe(pipeline.videoSegmentStream).pipe(pipeline.coalesceStream);\n            }\n\n            if (audioTrack && !pipeline.audioSegmentStream) {\n              // hook up the audio segment stream to the first track with aac data\n              pipeline.coalesceStream.numberOfTracks++;\n              pipeline.audioSegmentStream = new _AudioSegmentStream(audioTrack, options);\n              pipeline.audioSegmentStream.on('log', self.getLogTrigger_('audioSegmentStream'));\n              pipeline.audioSegmentStream.on('timingInfo', self.trigger.bind(self, 'audioTimingInfo'));\n              pipeline.audioSegmentStream.on('segmentTimingInfo', self.trigger.bind(self, 'audioSegmentTimingInfo')); // Set up the final part of the audio pipeline\n\n              pipeline.adtsStream.pipe(pipeline.audioSegmentStream).pipe(pipeline.coalesceStream);\n            } // emit pmt info\n\n\n            self.trigger('trackinfo', {\n              hasAudio: !!audioTrack,\n              hasVideo: !!videoTrack\n            });\n          }\n        }); // Re-emit any data coming from the coalesce stream to the outside world\n\n        pipeline.coalesceStream.on('data', this.trigger.bind(this, 'data'));\n        pipeline.coalesceStream.on('id3Frame', function (id3Frame) {\n          id3Frame.dispatchType = pipeline.metadataStream.dispatchType;\n          self.trigger('id3Frame', id3Frame);\n        });\n        pipeline.coalesceStream.on('caption', this.trigger.bind(this, 'caption')); // Let the consumer know we have finished flushing the entire pipeline\n\n        pipeline.coalesceStream.on('done', this.trigger.bind(this, 'done'));\n        addPipelineLogRetriggers(this, pipeline);\n      }; // hook up the segment streams once track metadata is delivered\n\n\n      this.setBaseMediaDecodeTime = function (baseMediaDecodeTime) {\n        var pipeline = this.transmuxPipeline_;\n\n        if (!options.keepOriginalTimestamps) {\n          this.baseMediaDecodeTime = baseMediaDecodeTime;\n        }\n\n        if (audioTrack) {\n          audioTrack.timelineStartInfo.dts = undefined;\n          audioTrack.timelineStartInfo.pts = undefined;\n          trackDecodeInfo.clearDtsInfo(audioTrack);\n\n          if (pipeline.audioTimestampRolloverStream) {\n            pipeline.audioTimestampRolloverStream.discontinuity();\n          }\n        }\n\n        if (videoTrack) {\n          if (pipeline.videoSegmentStream) {\n            pipeline.videoSegmentStream.gopCache_ = [];\n          }\n\n          videoTrack.timelineStartInfo.dts = undefined;\n          videoTrack.timelineStartInfo.pts = undefined;\n          trackDecodeInfo.clearDtsInfo(videoTrack);\n          pipeline.captionStream.reset();\n        }\n\n        if (pipeline.timestampRolloverStream) {\n          pipeline.timestampRolloverStream.discontinuity();\n        }\n      };\n\n      this.setAudioAppendStart = function (timestamp) {\n        if (audioTrack) {\n          this.transmuxPipeline_.audioSegmentStream.setAudioAppendStart(timestamp);\n        }\n      };\n\n      this.setRemux = function (val) {\n        var pipeline = this.transmuxPipeline_;\n        options.remux = val;\n\n        if (pipeline && pipeline.coalesceStream) {\n          pipeline.coalesceStream.setRemux(val);\n        }\n      };\n\n      this.alignGopsWith = function (gopsToAlignWith) {\n        if (videoTrack && this.transmuxPipeline_.videoSegmentStream) {\n          this.transmuxPipeline_.videoSegmentStream.alignGopsWith(gopsToAlignWith);\n        }\n      };\n\n      this.getLogTrigger_ = function (key) {\n        var self = this;\n        return function (event) {\n          event.stream = key;\n          self.trigger('log', event);\n        };\n      }; // feed incoming data to the front of the parsing pipeline\n\n\n      this.push = function (data) {\n        if (hasFlushed) {\n          var isAac = isLikelyAacData(data);\n\n          if (isAac && this.transmuxPipeline_.type !== 'aac') {\n            this.setupAacPipeline();\n          } else if (!isAac && this.transmuxPipeline_.type !== 'ts') {\n            this.setupTsPipeline();\n          }\n\n          hasFlushed = false;\n        }\n\n        this.transmuxPipeline_.headOfPipeline.push(data);\n      }; // flush any buffered data\n\n\n      this.flush = function () {\n        hasFlushed = true; // Start at the top of the pipeline and flush all pending work\n\n        this.transmuxPipeline_.headOfPipeline.flush();\n      };\n\n      this.endTimeline = function () {\n        this.transmuxPipeline_.headOfPipeline.endTimeline();\n      };\n\n      this.reset = function () {\n        if (this.transmuxPipeline_.headOfPipeline) {\n          this.transmuxPipeline_.headOfPipeline.reset();\n        }\n      }; // Caption data has to be reset when seeking outside buffered range\n\n\n      this.resetCaptions = function () {\n        if (this.transmuxPipeline_.captionStream) {\n          this.transmuxPipeline_.captionStream.reset();\n        }\n      };\n    };\n\n    _Transmuxer.prototype = new stream();\n    var transmuxer = {\n      Transmuxer: _Transmuxer,\n      VideoSegmentStream: _VideoSegmentStream,\n      AudioSegmentStream: _AudioSegmentStream,\n      AUDIO_PROPERTIES: audioProperties,\n      VIDEO_PROPERTIES: videoProperties,\n      // exported for testing\n      generateSegmentTimingInfo: generateSegmentTimingInfo\n    };\n    /**\n     * mux.js\n     *\n     * Copyright (c) Brightcove\n     * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE\n     */\n\n    var toUnsigned$3 = function toUnsigned(value) {\n      return value >>> 0;\n    };\n\n    var toHexString$1 = function toHexString(value) {\n      return ('00' + value.toString(16)).slice(-2);\n    };\n\n    var bin = {\n      toUnsigned: toUnsigned$3,\n      toHexString: toHexString$1\n    };\n\n    var parseType$1 = function parseType(buffer) {\n      var result = '';\n      result += String.fromCharCode(buffer[0]);\n      result += String.fromCharCode(buffer[1]);\n      result += String.fromCharCode(buffer[2]);\n      result += String.fromCharCode(buffer[3]);\n      return result;\n    };\n\n    var parseType_1 = parseType$1;\n    var toUnsigned$2 = bin.toUnsigned;\n\n    var findBox = function findBox(data, path) {\n      var results = [],\n          i,\n          size,\n          type,\n          end,\n          subresults;\n\n      if (!path.length) {\n        // short-circuit the search for empty paths\n        return null;\n      }\n\n      for (i = 0; i < data.byteLength;) {\n        size = toUnsigned$2(data[i] << 24 | data[i + 1] << 16 | data[i + 2] << 8 | data[i + 3]);\n        type = parseType_1(data.subarray(i + 4, i + 8));\n        end = size > 1 ? i + size : data.byteLength;\n\n        if (type === path[0]) {\n          if (path.length === 1) {\n            // this is the end of the path and we've found the box we were\n            // looking for\n            results.push(data.subarray(i + 8, end));\n          } else {\n            // recursively search for the next box along the path\n            subresults = findBox(data.subarray(i + 8, end), path.slice(1));\n\n            if (subresults.length) {\n              results = results.concat(subresults);\n            }\n          }\n        }\n\n        i = end;\n      } // we've finished searching all of data\n\n\n      return results;\n    };\n\n    var findBox_1 = findBox;\n    var toUnsigned$1 = bin.toUnsigned;\n    var getUint64$1 = numbers.getUint64;\n\n    var tfdt = function tfdt(data) {\n      var result = {\n        version: data[0],\n        flags: new Uint8Array(data.subarray(1, 4))\n      };\n\n      if (result.version === 1) {\n        result.baseMediaDecodeTime = getUint64$1(data.subarray(4));\n      } else {\n        result.baseMediaDecodeTime = toUnsigned$1(data[4] << 24 | data[5] << 16 | data[6] << 8 | data[7]);\n      }\n\n      return result;\n    };\n\n    var parseTfdt = tfdt;\n\n    var parseSampleFlags = function parseSampleFlags(flags) {\n      return {\n        isLeading: (flags[0] & 0x0c) >>> 2,\n        dependsOn: flags[0] & 0x03,\n        isDependedOn: (flags[1] & 0xc0) >>> 6,\n        hasRedundancy: (flags[1] & 0x30) >>> 4,\n        paddingValue: (flags[1] & 0x0e) >>> 1,\n        isNonSyncSample: flags[1] & 0x01,\n        degradationPriority: flags[2] << 8 | flags[3]\n      };\n    };\n\n    var parseSampleFlags_1 = parseSampleFlags;\n\n    var trun = function trun(data) {\n      var result = {\n        version: data[0],\n        flags: new Uint8Array(data.subarray(1, 4)),\n        samples: []\n      },\n          view = new DataView(data.buffer, data.byteOffset, data.byteLength),\n          // Flag interpretation\n      dataOffsetPresent = result.flags[2] & 0x01,\n          // compare with 2nd byte of 0x1\n      firstSampleFlagsPresent = result.flags[2] & 0x04,\n          // compare with 2nd byte of 0x4\n      sampleDurationPresent = result.flags[1] & 0x01,\n          // compare with 2nd byte of 0x100\n      sampleSizePresent = result.flags[1] & 0x02,\n          // compare with 2nd byte of 0x200\n      sampleFlagsPresent = result.flags[1] & 0x04,\n          // compare with 2nd byte of 0x400\n      sampleCompositionTimeOffsetPresent = result.flags[1] & 0x08,\n          // compare with 2nd byte of 0x800\n      sampleCount = view.getUint32(4),\n          offset = 8,\n          sample;\n\n      if (dataOffsetPresent) {\n        // 32 bit signed integer\n        result.dataOffset = view.getInt32(offset);\n        offset += 4;\n      } // Overrides the flags for the first sample only. The order of\n      // optional values will be: duration, size, compositionTimeOffset\n\n\n      if (firstSampleFlagsPresent && sampleCount) {\n        sample = {\n          flags: parseSampleFlags_1(data.subarray(offset, offset + 4))\n        };\n        offset += 4;\n\n        if (sampleDurationPresent) {\n          sample.duration = view.getUint32(offset);\n          offset += 4;\n        }\n\n        if (sampleSizePresent) {\n          sample.size = view.getUint32(offset);\n          offset += 4;\n        }\n\n        if (sampleCompositionTimeOffsetPresent) {\n          if (result.version === 1) {\n            sample.compositionTimeOffset = view.getInt32(offset);\n          } else {\n            sample.compositionTimeOffset = view.getUint32(offset);\n          }\n\n          offset += 4;\n        }\n\n        result.samples.push(sample);\n        sampleCount--;\n      }\n\n      while (sampleCount--) {\n        sample = {};\n\n        if (sampleDurationPresent) {\n          sample.duration = view.getUint32(offset);\n          offset += 4;\n        }\n\n        if (sampleSizePresent) {\n          sample.size = view.getUint32(offset);\n          offset += 4;\n        }\n\n        if (sampleFlagsPresent) {\n          sample.flags = parseSampleFlags_1(data.subarray(offset, offset + 4));\n          offset += 4;\n        }\n\n        if (sampleCompositionTimeOffsetPresent) {\n          if (result.version === 1) {\n            sample.compositionTimeOffset = view.getInt32(offset);\n          } else {\n            sample.compositionTimeOffset = view.getUint32(offset);\n          }\n\n          offset += 4;\n        }\n\n        result.samples.push(sample);\n      }\n\n      return result;\n    };\n\n    var parseTrun = trun;\n\n    var tfhd = function tfhd(data) {\n      var view = new DataView(data.buffer, data.byteOffset, data.byteLength),\n          result = {\n        version: data[0],\n        flags: new Uint8Array(data.subarray(1, 4)),\n        trackId: view.getUint32(4)\n      },\n          baseDataOffsetPresent = result.flags[2] & 0x01,\n          sampleDescriptionIndexPresent = result.flags[2] & 0x02,\n          defaultSampleDurationPresent = result.flags[2] & 0x08,\n          defaultSampleSizePresent = result.flags[2] & 0x10,\n          defaultSampleFlagsPresent = result.flags[2] & 0x20,\n          durationIsEmpty = result.flags[0] & 0x010000,\n          defaultBaseIsMoof = result.flags[0] & 0x020000,\n          i;\n      i = 8;\n\n      if (baseDataOffsetPresent) {\n        i += 4; // truncate top 4 bytes\n        // FIXME: should we read the full 64 bits?\n\n        result.baseDataOffset = view.getUint32(12);\n        i += 4;\n      }\n\n      if (sampleDescriptionIndexPresent) {\n        result.sampleDescriptionIndex = view.getUint32(i);\n        i += 4;\n      }\n\n      if (defaultSampleDurationPresent) {\n        result.defaultSampleDuration = view.getUint32(i);\n        i += 4;\n      }\n\n      if (defaultSampleSizePresent) {\n        result.defaultSampleSize = view.getUint32(i);\n        i += 4;\n      }\n\n      if (defaultSampleFlagsPresent) {\n        result.defaultSampleFlags = view.getUint32(i);\n      }\n\n      if (durationIsEmpty) {\n        result.durationIsEmpty = true;\n      }\n\n      if (!baseDataOffsetPresent && defaultBaseIsMoof) {\n        result.baseDataOffsetIsMoof = true;\n      }\n\n      return result;\n    };\n\n    var parseTfhd = tfhd;\n    var commonjsGlobal = typeof globalThis !== 'undefined' ? globalThis : typeof window !== 'undefined' ? window : typeof global !== 'undefined' ? global : typeof self !== 'undefined' ? self : {};\n    var win;\n\n    if (typeof window !== \"undefined\") {\n      win = window;\n    } else if (typeof commonjsGlobal !== \"undefined\") {\n      win = commonjsGlobal;\n    } else if (typeof self !== \"undefined\") {\n      win = self;\n    } else {\n      win = {};\n    }\n\n    var window_1 = win;\n    var discardEmulationPreventionBytes = captionPacketParser.discardEmulationPreventionBytes;\n    var CaptionStream = captionStream.CaptionStream;\n    /**\n      * Maps an offset in the mdat to a sample based on the the size of the samples.\n      * Assumes that `parseSamples` has been called first.\n      *\n      * @param {Number} offset - The offset into the mdat\n      * @param {Object[]} samples - An array of samples, parsed using `parseSamples`\n      * @return {?Object} The matching sample, or null if no match was found.\n      *\n      * @see ISO-BMFF-12/2015, Section 8.8.8\n     **/\n\n    var mapToSample = function mapToSample(offset, samples) {\n      var approximateOffset = offset;\n\n      for (var i = 0; i < samples.length; i++) {\n        var sample = samples[i];\n\n        if (approximateOffset < sample.size) {\n          return sample;\n        }\n\n        approximateOffset -= sample.size;\n      }\n\n      return null;\n    };\n    /**\n      * Finds SEI nal units contained in a Media Data Box.\n      * Assumes that `parseSamples` has been called first.\n      *\n      * @param {Uint8Array} avcStream - The bytes of the mdat\n      * @param {Object[]} samples - The samples parsed out by `parseSamples`\n      * @param {Number} trackId - The trackId of this video track\n      * @return {Object[]} seiNals - the parsed SEI NALUs found.\n      *   The contents of the seiNal should match what is expected by\n      *   CaptionStream.push (nalUnitType, size, data, escapedRBSP, pts, dts)\n      *\n      * @see ISO-BMFF-12/2015, Section 8.1.1\n      * @see Rec. ITU-T H.264, 7.3.2.3.1\n     **/\n\n\n    var findSeiNals = function findSeiNals(avcStream, samples, trackId) {\n      var avcView = new DataView(avcStream.buffer, avcStream.byteOffset, avcStream.byteLength),\n          result = {\n        logs: [],\n        seiNals: []\n      },\n          seiNal,\n          i,\n          length,\n          lastMatchedSample;\n\n      for (i = 0; i + 4 < avcStream.length; i += length) {\n        length = avcView.getUint32(i);\n        i += 4; // Bail if this doesn't appear to be an H264 stream\n\n        if (length <= 0) {\n          continue;\n        }\n\n        switch (avcStream[i] & 0x1F) {\n          case 0x06:\n            var data = avcStream.subarray(i + 1, i + 1 + length);\n            var matchingSample = mapToSample(i, samples);\n            seiNal = {\n              nalUnitType: 'sei_rbsp',\n              size: length,\n              data: data,\n              escapedRBSP: discardEmulationPreventionBytes(data),\n              trackId: trackId\n            };\n\n            if (matchingSample) {\n              seiNal.pts = matchingSample.pts;\n              seiNal.dts = matchingSample.dts;\n              lastMatchedSample = matchingSample;\n            } else if (lastMatchedSample) {\n              // If a matching sample cannot be found, use the last\n              // sample's values as they should be as close as possible\n              seiNal.pts = lastMatchedSample.pts;\n              seiNal.dts = lastMatchedSample.dts;\n            } else {\n              result.logs.push({\n                level: 'warn',\n                message: 'We\\'ve encountered a nal unit without data at ' + i + ' for trackId ' + trackId + '. See mux.js#223.'\n              });\n              break;\n            }\n\n            result.seiNals.push(seiNal);\n            break;\n        }\n      }\n\n      return result;\n    };\n    /**\n      * Parses sample information out of Track Run Boxes and calculates\n      * the absolute presentation and decode timestamps of each sample.\n      *\n      * @param {Array<Uint8Array>} truns - The Trun Run boxes to be parsed\n      * @param {Number|BigInt} baseMediaDecodeTime - base media decode time from tfdt\n          @see ISO-BMFF-12/2015, Section 8.8.12\n      * @param {Object} tfhd - The parsed Track Fragment Header\n      *   @see inspect.parseTfhd\n      * @return {Object[]} the parsed samples\n      *\n      * @see ISO-BMFF-12/2015, Section 8.8.8\n     **/\n\n\n    var parseSamples = function parseSamples(truns, baseMediaDecodeTime, tfhd) {\n      var currentDts = baseMediaDecodeTime;\n      var defaultSampleDuration = tfhd.defaultSampleDuration || 0;\n      var defaultSampleSize = tfhd.defaultSampleSize || 0;\n      var trackId = tfhd.trackId;\n      var allSamples = [];\n      truns.forEach(function (trun) {\n        // Note: We currently do not parse the sample table as well\n        // as the trun. It's possible some sources will require this.\n        // moov > trak > mdia > minf > stbl\n        var trackRun = parseTrun(trun);\n        var samples = trackRun.samples;\n        samples.forEach(function (sample) {\n          if (sample.duration === undefined) {\n            sample.duration = defaultSampleDuration;\n          }\n\n          if (sample.size === undefined) {\n            sample.size = defaultSampleSize;\n          }\n\n          sample.trackId = trackId;\n          sample.dts = currentDts;\n\n          if (sample.compositionTimeOffset === undefined) {\n            sample.compositionTimeOffset = 0;\n          }\n\n          if (typeof currentDts === 'bigint') {\n            sample.pts = currentDts + window_1.BigInt(sample.compositionTimeOffset);\n            currentDts += window_1.BigInt(sample.duration);\n          } else {\n            sample.pts = currentDts + sample.compositionTimeOffset;\n            currentDts += sample.duration;\n          }\n        });\n        allSamples = allSamples.concat(samples);\n      });\n      return allSamples;\n    };\n    /**\n      * Parses out caption nals from an FMP4 segment's video tracks.\n      *\n      * @param {Uint8Array} segment - The bytes of a single segment\n      * @param {Number} videoTrackId - The trackId of a video track in the segment\n      * @return {Object.<Number, Object[]>} A mapping of video trackId to\n      *   a list of seiNals found in that track\n     **/\n\n\n    var parseCaptionNals = function parseCaptionNals(segment, videoTrackId) {\n      // To get the samples\n      var trafs = findBox_1(segment, ['moof', 'traf']); // To get SEI NAL units\n\n      var mdats = findBox_1(segment, ['mdat']);\n      var captionNals = {};\n      var mdatTrafPairs = []; // Pair up each traf with a mdat as moofs and mdats are in pairs\n\n      mdats.forEach(function (mdat, index) {\n        var matchingTraf = trafs[index];\n        mdatTrafPairs.push({\n          mdat: mdat,\n          traf: matchingTraf\n        });\n      });\n      mdatTrafPairs.forEach(function (pair) {\n        var mdat = pair.mdat;\n        var traf = pair.traf;\n        var tfhd = findBox_1(traf, ['tfhd']); // Exactly 1 tfhd per traf\n\n        var headerInfo = parseTfhd(tfhd[0]);\n        var trackId = headerInfo.trackId;\n        var tfdt = findBox_1(traf, ['tfdt']); // Either 0 or 1 tfdt per traf\n\n        var baseMediaDecodeTime = tfdt.length > 0 ? parseTfdt(tfdt[0]).baseMediaDecodeTime : 0;\n        var truns = findBox_1(traf, ['trun']);\n        var samples;\n        var result; // Only parse video data for the chosen video track\n\n        if (videoTrackId === trackId && truns.length > 0) {\n          samples = parseSamples(truns, baseMediaDecodeTime, headerInfo);\n          result = findSeiNals(mdat, samples, trackId);\n\n          if (!captionNals[trackId]) {\n            captionNals[trackId] = {\n              seiNals: [],\n              logs: []\n            };\n          }\n\n          captionNals[trackId].seiNals = captionNals[trackId].seiNals.concat(result.seiNals);\n          captionNals[trackId].logs = captionNals[trackId].logs.concat(result.logs);\n        }\n      });\n      return captionNals;\n    };\n    /**\n      * Parses out inband captions from an MP4 container and returns\n      * caption objects that can be used by WebVTT and the TextTrack API.\n      * @see https://developer.mozilla.org/en-US/docs/Web/API/VTTCue\n      * @see https://developer.mozilla.org/en-US/docs/Web/API/TextTrack\n      * Assumes that `probe.getVideoTrackIds` and `probe.timescale` have been called first\n      *\n      * @param {Uint8Array} segment - The fmp4 segment containing embedded captions\n      * @param {Number} trackId - The id of the video track to parse\n      * @param {Number} timescale - The timescale for the video track from the init segment\n      *\n      * @return {?Object[]} parsedCaptions - A list of captions or null if no video tracks\n      * @return {Number} parsedCaptions[].startTime - The time to show the caption in seconds\n      * @return {Number} parsedCaptions[].endTime - The time to stop showing the caption in seconds\n      * @return {String} parsedCaptions[].text - The visible content of the caption\n     **/\n\n\n    var parseEmbeddedCaptions = function parseEmbeddedCaptions(segment, trackId, timescale) {\n      var captionNals; // the ISO-BMFF spec says that trackId can't be zero, but there's some broken content out there\n\n      if (trackId === null) {\n        return null;\n      }\n\n      captionNals = parseCaptionNals(segment, trackId);\n      var trackNals = captionNals[trackId] || {};\n      return {\n        seiNals: trackNals.seiNals,\n        logs: trackNals.logs,\n        timescale: timescale\n      };\n    };\n    /**\n      * Converts SEI NALUs into captions that can be used by video.js\n     **/\n\n\n    var CaptionParser = function CaptionParser() {\n      var isInitialized = false;\n      var captionStream; // Stores segments seen before trackId and timescale are set\n\n      var segmentCache; // Stores video track ID of the track being parsed\n\n      var trackId; // Stores the timescale of the track being parsed\n\n      var timescale; // Stores captions parsed so far\n\n      var parsedCaptions; // Stores whether we are receiving partial data or not\n\n      var parsingPartial;\n      /**\n        * A method to indicate whether a CaptionParser has been initalized\n        * @returns {Boolean}\n       **/\n\n      this.isInitialized = function () {\n        return isInitialized;\n      };\n      /**\n        * Initializes the underlying CaptionStream, SEI NAL parsing\n        * and management, and caption collection\n       **/\n\n\n      this.init = function (options) {\n        captionStream = new CaptionStream();\n        isInitialized = true;\n        parsingPartial = options ? options.isPartial : false; // Collect dispatched captions\n\n        captionStream.on('data', function (event) {\n          // Convert to seconds in the source's timescale\n          event.startTime = event.startPts / timescale;\n          event.endTime = event.endPts / timescale;\n          parsedCaptions.captions.push(event);\n          parsedCaptions.captionStreams[event.stream] = true;\n        });\n        captionStream.on('log', function (log) {\n          parsedCaptions.logs.push(log);\n        });\n      };\n      /**\n        * Determines if a new video track will be selected\n        * or if the timescale changed\n        * @return {Boolean}\n       **/\n\n\n      this.isNewInit = function (videoTrackIds, timescales) {\n        if (videoTrackIds && videoTrackIds.length === 0 || timescales && typeof timescales === 'object' && Object.keys(timescales).length === 0) {\n          return false;\n        }\n\n        return trackId !== videoTrackIds[0] || timescale !== timescales[trackId];\n      };\n      /**\n        * Parses out SEI captions and interacts with underlying\n        * CaptionStream to return dispatched captions\n        *\n        * @param {Uint8Array} segment - The fmp4 segment containing embedded captions\n        * @param {Number[]} videoTrackIds - A list of video tracks found in the init segment\n        * @param {Object.<Number, Number>} timescales - The timescales found in the init segment\n        * @see parseEmbeddedCaptions\n        * @see m2ts/caption-stream.js\n       **/\n\n\n      this.parse = function (segment, videoTrackIds, timescales) {\n        var parsedData;\n\n        if (!this.isInitialized()) {\n          return null; // This is not likely to be a video segment\n        } else if (!videoTrackIds || !timescales) {\n          return null;\n        } else if (this.isNewInit(videoTrackIds, timescales)) {\n          // Use the first video track only as there is no\n          // mechanism to switch to other video tracks\n          trackId = videoTrackIds[0];\n          timescale = timescales[trackId]; // If an init segment has not been seen yet, hold onto segment\n          // data until we have one.\n          // the ISO-BMFF spec says that trackId can't be zero, but there's some broken content out there\n        } else if (trackId === null || !timescale) {\n          segmentCache.push(segment);\n          return null;\n        } // Now that a timescale and trackId is set, parse cached segments\n\n\n        while (segmentCache.length > 0) {\n          var cachedSegment = segmentCache.shift();\n          this.parse(cachedSegment, videoTrackIds, timescales);\n        }\n\n        parsedData = parseEmbeddedCaptions(segment, trackId, timescale);\n\n        if (parsedData && parsedData.logs) {\n          parsedCaptions.logs = parsedCaptions.logs.concat(parsedData.logs);\n        }\n\n        if (parsedData === null || !parsedData.seiNals) {\n          if (parsedCaptions.logs.length) {\n            return {\n              logs: parsedCaptions.logs,\n              captions: [],\n              captionStreams: []\n            };\n          }\n\n          return null;\n        }\n\n        this.pushNals(parsedData.seiNals); // Force the parsed captions to be dispatched\n\n        this.flushStream();\n        return parsedCaptions;\n      };\n      /**\n        * Pushes SEI NALUs onto CaptionStream\n        * @param {Object[]} nals - A list of SEI nals parsed using `parseCaptionNals`\n        * Assumes that `parseCaptionNals` has been called first\n        * @see m2ts/caption-stream.js\n        **/\n\n\n      this.pushNals = function (nals) {\n        if (!this.isInitialized() || !nals || nals.length === 0) {\n          return null;\n        }\n\n        nals.forEach(function (nal) {\n          captionStream.push(nal);\n        });\n      };\n      /**\n        * Flushes underlying CaptionStream to dispatch processed, displayable captions\n        * @see m2ts/caption-stream.js\n       **/\n\n\n      this.flushStream = function () {\n        if (!this.isInitialized()) {\n          return null;\n        }\n\n        if (!parsingPartial) {\n          captionStream.flush();\n        } else {\n          captionStream.partialFlush();\n        }\n      };\n      /**\n        * Reset caption buckets for new data\n       **/\n\n\n      this.clearParsedCaptions = function () {\n        parsedCaptions.captions = [];\n        parsedCaptions.captionStreams = {};\n        parsedCaptions.logs = [];\n      };\n      /**\n        * Resets underlying CaptionStream\n        * @see m2ts/caption-stream.js\n       **/\n\n\n      this.resetCaptionStream = function () {\n        if (!this.isInitialized()) {\n          return null;\n        }\n\n        captionStream.reset();\n      };\n      /**\n        * Convenience method to clear all captions flushed from the\n        * CaptionStream and still being parsed\n        * @see m2ts/caption-stream.js\n       **/\n\n\n      this.clearAllCaptions = function () {\n        this.clearParsedCaptions();\n        this.resetCaptionStream();\n      };\n      /**\n        * Reset caption parser\n       **/\n\n\n      this.reset = function () {\n        segmentCache = [];\n        trackId = null;\n        timescale = null;\n\n        if (!parsedCaptions) {\n          parsedCaptions = {\n            captions: [],\n            // CC1, CC2, CC3, CC4\n            captionStreams: {},\n            logs: []\n          };\n        } else {\n          this.clearParsedCaptions();\n        }\n\n        this.resetCaptionStream();\n      };\n\n      this.reset();\n    };\n\n    var captionParser = CaptionParser;\n    var toUnsigned = bin.toUnsigned;\n    var toHexString = bin.toHexString;\n    var getUint64 = numbers.getUint64;\n    var timescale, startTime, compositionStartTime, getVideoTrackIds, getTracks, getTimescaleFromMediaHeader;\n    /**\n     * Parses an MP4 initialization segment and extracts the timescale\n     * values for any declared tracks. Timescale values indicate the\n     * number of clock ticks per second to assume for time-based values\n     * elsewhere in the MP4.\n     *\n     * To determine the start time of an MP4, you need two pieces of\n     * information: the timescale unit and the earliest base media decode\n     * time. Multiple timescales can be specified within an MP4 but the\n     * base media decode time is always expressed in the timescale from\n     * the media header box for the track:\n     * ```\n     * moov > trak > mdia > mdhd.timescale\n     * ```\n     * @param init {Uint8Array} the bytes of the init segment\n     * @return {object} a hash of track ids to timescale values or null if\n     * the init segment is malformed.\n     */\n\n    timescale = function timescale(init) {\n      var result = {},\n          traks = findBox_1(init, ['moov', 'trak']); // mdhd timescale\n\n      return traks.reduce(function (result, trak) {\n        var tkhd, version, index, id, mdhd;\n        tkhd = findBox_1(trak, ['tkhd'])[0];\n\n        if (!tkhd) {\n          return null;\n        }\n\n        version = tkhd[0];\n        index = version === 0 ? 12 : 20;\n        id = toUnsigned(tkhd[index] << 24 | tkhd[index + 1] << 16 | tkhd[index + 2] << 8 | tkhd[index + 3]);\n        mdhd = findBox_1(trak, ['mdia', 'mdhd'])[0];\n\n        if (!mdhd) {\n          return null;\n        }\n\n        version = mdhd[0];\n        index = version === 0 ? 12 : 20;\n        result[id] = toUnsigned(mdhd[index] << 24 | mdhd[index + 1] << 16 | mdhd[index + 2] << 8 | mdhd[index + 3]);\n        return result;\n      }, result);\n    };\n    /**\n     * Determine the base media decode start time, in seconds, for an MP4\n     * fragment. If multiple fragments are specified, the earliest time is\n     * returned.\n     *\n     * The base media decode time can be parsed from track fragment\n     * metadata:\n     * ```\n     * moof > traf > tfdt.baseMediaDecodeTime\n     * ```\n     * It requires the timescale value from the mdhd to interpret.\n     *\n     * @param timescale {object} a hash of track ids to timescale values.\n     * @return {number} the earliest base media decode start time for the\n     * fragment, in seconds\n     */\n\n\n    startTime = function startTime(timescale, fragment) {\n      var trafs; // we need info from two childrend of each track fragment box\n\n      trafs = findBox_1(fragment, ['moof', 'traf']); // determine the start times for each track\n\n      var lowestTime = trafs.reduce(function (acc, traf) {\n        var tfhd = findBox_1(traf, ['tfhd'])[0]; // get the track id from the tfhd\n\n        var id = toUnsigned(tfhd[4] << 24 | tfhd[5] << 16 | tfhd[6] << 8 | tfhd[7]); // assume a 90kHz clock if no timescale was specified\n\n        var scale = timescale[id] || 90e3; // get the base media decode time from the tfdt\n\n        var tfdt = findBox_1(traf, ['tfdt'])[0];\n        var dv = new DataView(tfdt.buffer, tfdt.byteOffset, tfdt.byteLength);\n        var baseTime; // version 1 is 64 bit\n\n        if (tfdt[0] === 1) {\n          baseTime = getUint64(tfdt.subarray(4, 12));\n        } else {\n          baseTime = dv.getUint32(4);\n        } // convert base time to seconds if it is a valid number.\n\n\n        var seconds;\n\n        if (typeof baseTime === 'bigint') {\n          seconds = baseTime / window_1.BigInt(scale);\n        } else if (typeof baseTime === 'number' && !isNaN(baseTime)) {\n          seconds = baseTime / scale;\n        }\n\n        if (seconds < Number.MAX_SAFE_INTEGER) {\n          seconds = Number(seconds);\n        }\n\n        if (seconds < acc) {\n          acc = seconds;\n        }\n\n        return acc;\n      }, Infinity);\n      return typeof lowestTime === 'bigint' || isFinite(lowestTime) ? lowestTime : 0;\n    };\n    /**\n     * Determine the composition start, in seconds, for an MP4\n     * fragment.\n     *\n     * The composition start time of a fragment can be calculated using the base\n     * media decode time, composition time offset, and timescale, as follows:\n     *\n     * compositionStartTime = (baseMediaDecodeTime + compositionTimeOffset) / timescale\n     *\n     * All of the aforementioned information is contained within a media fragment's\n     * `traf` box, except for timescale info, which comes from the initialization\n     * segment, so a track id (also contained within a `traf`) is also necessary to\n     * associate it with a timescale\n     *\n     *\n     * @param timescales {object} - a hash of track ids to timescale values.\n     * @param fragment {Unit8Array} - the bytes of a media segment\n     * @return {number} the composition start time for the fragment, in seconds\n     **/\n\n\n    compositionStartTime = function compositionStartTime(timescales, fragment) {\n      var trafBoxes = findBox_1(fragment, ['moof', 'traf']);\n      var baseMediaDecodeTime = 0;\n      var compositionTimeOffset = 0;\n      var trackId;\n\n      if (trafBoxes && trafBoxes.length) {\n        // The spec states that track run samples contained within a `traf` box are contiguous, but\n        // it does not explicitly state whether the `traf` boxes themselves are contiguous.\n        // We will assume that they are, so we only need the first to calculate start time.\n        var tfhd = findBox_1(trafBoxes[0], ['tfhd'])[0];\n        var trun = findBox_1(trafBoxes[0], ['trun'])[0];\n        var tfdt = findBox_1(trafBoxes[0], ['tfdt'])[0];\n\n        if (tfhd) {\n          var parsedTfhd = parseTfhd(tfhd);\n          trackId = parsedTfhd.trackId;\n        }\n\n        if (tfdt) {\n          var parsedTfdt = parseTfdt(tfdt);\n          baseMediaDecodeTime = parsedTfdt.baseMediaDecodeTime;\n        }\n\n        if (trun) {\n          var parsedTrun = parseTrun(trun);\n\n          if (parsedTrun.samples && parsedTrun.samples.length) {\n            compositionTimeOffset = parsedTrun.samples[0].compositionTimeOffset || 0;\n          }\n        }\n      } // Get timescale for this specific track. Assume a 90kHz clock if no timescale was\n      // specified.\n\n\n      var timescale = timescales[trackId] || 90e3; // return the composition start time, in seconds\n\n      if (typeof baseMediaDecodeTime === 'bigint') {\n        compositionTimeOffset = window_1.BigInt(compositionTimeOffset);\n        timescale = window_1.BigInt(timescale);\n      }\n\n      var result = (baseMediaDecodeTime + compositionTimeOffset) / timescale;\n\n      if (typeof result === 'bigint' && result < Number.MAX_SAFE_INTEGER) {\n        result = Number(result);\n      }\n\n      return result;\n    };\n    /**\n      * Find the trackIds of the video tracks in this source.\n      * Found by parsing the Handler Reference and Track Header Boxes:\n      *   moov > trak > mdia > hdlr\n      *   moov > trak > tkhd\n      *\n      * @param {Uint8Array} init - The bytes of the init segment for this source\n      * @return {Number[]} A list of trackIds\n      *\n      * @see ISO-BMFF-12/2015, Section 8.4.3\n     **/\n\n\n    getVideoTrackIds = function getVideoTrackIds(init) {\n      var traks = findBox_1(init, ['moov', 'trak']);\n      var videoTrackIds = [];\n      traks.forEach(function (trak) {\n        var hdlrs = findBox_1(trak, ['mdia', 'hdlr']);\n        var tkhds = findBox_1(trak, ['tkhd']);\n        hdlrs.forEach(function (hdlr, index) {\n          var handlerType = parseType_1(hdlr.subarray(8, 12));\n          var tkhd = tkhds[index];\n          var view;\n          var version;\n          var trackId;\n\n          if (handlerType === 'vide') {\n            view = new DataView(tkhd.buffer, tkhd.byteOffset, tkhd.byteLength);\n            version = view.getUint8(0);\n            trackId = version === 0 ? view.getUint32(12) : view.getUint32(20);\n            videoTrackIds.push(trackId);\n          }\n        });\n      });\n      return videoTrackIds;\n    };\n\n    getTimescaleFromMediaHeader = function getTimescaleFromMediaHeader(mdhd) {\n      // mdhd is a FullBox, meaning it will have its own version as the first byte\n      var version = mdhd[0];\n      var index = version === 0 ? 12 : 20;\n      return toUnsigned(mdhd[index] << 24 | mdhd[index + 1] << 16 | mdhd[index + 2] << 8 | mdhd[index + 3]);\n    };\n    /**\n     * Get all the video, audio, and hint tracks from a non fragmented\n     * mp4 segment\n     */\n\n\n    getTracks = function getTracks(init) {\n      var traks = findBox_1(init, ['moov', 'trak']);\n      var tracks = [];\n      traks.forEach(function (trak) {\n        var track = {};\n        var tkhd = findBox_1(trak, ['tkhd'])[0];\n        var view, tkhdVersion; // id\n\n        if (tkhd) {\n          view = new DataView(tkhd.buffer, tkhd.byteOffset, tkhd.byteLength);\n          tkhdVersion = view.getUint8(0);\n          track.id = tkhdVersion === 0 ? view.getUint32(12) : view.getUint32(20);\n        }\n\n        var hdlr = findBox_1(trak, ['mdia', 'hdlr'])[0]; // type\n\n        if (hdlr) {\n          var type = parseType_1(hdlr.subarray(8, 12));\n\n          if (type === 'vide') {\n            track.type = 'video';\n          } else if (type === 'soun') {\n            track.type = 'audio';\n          } else {\n            track.type = type;\n          }\n        } // codec\n\n\n        var stsd = findBox_1(trak, ['mdia', 'minf', 'stbl', 'stsd'])[0];\n\n        if (stsd) {\n          var sampleDescriptions = stsd.subarray(8); // gives the codec type string\n\n          track.codec = parseType_1(sampleDescriptions.subarray(4, 8));\n          var codecBox = findBox_1(sampleDescriptions, [track.codec])[0];\n          var codecConfig, codecConfigType;\n\n          if (codecBox) {\n            // https://tools.ietf.org/html/rfc6381#section-3.3\n            if (/^[asm]vc[1-9]$/i.test(track.codec)) {\n              // we don't need anything but the \"config\" parameter of the\n              // avc1 codecBox\n              codecConfig = codecBox.subarray(78);\n              codecConfigType = parseType_1(codecConfig.subarray(4, 8));\n\n              if (codecConfigType === 'avcC' && codecConfig.length > 11) {\n                track.codec += '.'; // left padded with zeroes for single digit hex\n                // profile idc\n\n                track.codec += toHexString(codecConfig[9]); // the byte containing the constraint_set flags\n\n                track.codec += toHexString(codecConfig[10]); // level idc\n\n                track.codec += toHexString(codecConfig[11]);\n              } else {\n                // TODO: show a warning that we couldn't parse the codec\n                // and are using the default\n                track.codec = 'avc1.4d400d';\n              }\n            } else if (/^mp4[a,v]$/i.test(track.codec)) {\n              // we do not need anything but the streamDescriptor of the mp4a codecBox\n              codecConfig = codecBox.subarray(28);\n              codecConfigType = parseType_1(codecConfig.subarray(4, 8));\n\n              if (codecConfigType === 'esds' && codecConfig.length > 20 && codecConfig[19] !== 0) {\n                track.codec += '.' + toHexString(codecConfig[19]); // this value is only a single digit\n\n                track.codec += '.' + toHexString(codecConfig[20] >>> 2 & 0x3f).replace(/^0/, '');\n              } else {\n                // TODO: show a warning that we couldn't parse the codec\n                // and are using the default\n                track.codec = 'mp4a.40.2';\n              }\n            } else {\n              // flac, opus, etc\n              track.codec = track.codec.toLowerCase();\n            }\n          }\n        }\n\n        var mdhd = findBox_1(trak, ['mdia', 'mdhd'])[0];\n\n        if (mdhd) {\n          track.timescale = getTimescaleFromMediaHeader(mdhd);\n        }\n\n        tracks.push(track);\n      });\n      return tracks;\n    };\n\n    var probe$2 = {\n      // export mp4 inspector's findBox and parseType for backwards compatibility\n      findBox: findBox_1,\n      parseType: parseType_1,\n      timescale: timescale,\n      startTime: startTime,\n      compositionStartTime: compositionStartTime,\n      videoTrackIds: getVideoTrackIds,\n      tracks: getTracks,\n      getTimescaleFromMediaHeader: getTimescaleFromMediaHeader\n    };\n\n    var parsePid = function parsePid(packet) {\n      var pid = packet[1] & 0x1f;\n      pid <<= 8;\n      pid |= packet[2];\n      return pid;\n    };\n\n    var parsePayloadUnitStartIndicator = function parsePayloadUnitStartIndicator(packet) {\n      return !!(packet[1] & 0x40);\n    };\n\n    var parseAdaptionField = function parseAdaptionField(packet) {\n      var offset = 0; // if an adaption field is present, its length is specified by the\n      // fifth byte of the TS packet header. The adaptation field is\n      // used to add stuffing to PES packets that don't fill a complete\n      // TS packet, and to specify some forms of timing and control data\n      // that we do not currently use.\n\n      if ((packet[3] & 0x30) >>> 4 > 0x01) {\n        offset += packet[4] + 1;\n      }\n\n      return offset;\n    };\n\n    var parseType = function parseType(packet, pmtPid) {\n      var pid = parsePid(packet);\n\n      if (pid === 0) {\n        return 'pat';\n      } else if (pid === pmtPid) {\n        return 'pmt';\n      } else if (pmtPid) {\n        return 'pes';\n      }\n\n      return null;\n    };\n\n    var parsePat = function parsePat(packet) {\n      var pusi = parsePayloadUnitStartIndicator(packet);\n      var offset = 4 + parseAdaptionField(packet);\n\n      if (pusi) {\n        offset += packet[offset] + 1;\n      }\n\n      return (packet[offset + 10] & 0x1f) << 8 | packet[offset + 11];\n    };\n\n    var parsePmt = function parsePmt(packet) {\n      var programMapTable = {};\n      var pusi = parsePayloadUnitStartIndicator(packet);\n      var payloadOffset = 4 + parseAdaptionField(packet);\n\n      if (pusi) {\n        payloadOffset += packet[payloadOffset] + 1;\n      } // PMTs can be sent ahead of the time when they should actually\n      // take effect. We don't believe this should ever be the case\n      // for HLS but we'll ignore \"forward\" PMT declarations if we see\n      // them. Future PMT declarations have the current_next_indicator\n      // set to zero.\n\n\n      if (!(packet[payloadOffset + 5] & 0x01)) {\n        return;\n      }\n\n      var sectionLength, tableEnd, programInfoLength; // the mapping table ends at the end of the current section\n\n      sectionLength = (packet[payloadOffset + 1] & 0x0f) << 8 | packet[payloadOffset + 2];\n      tableEnd = 3 + sectionLength - 4; // to determine where the table is, we have to figure out how\n      // long the program info descriptors are\n\n      programInfoLength = (packet[payloadOffset + 10] & 0x0f) << 8 | packet[payloadOffset + 11]; // advance the offset to the first entry in the mapping table\n\n      var offset = 12 + programInfoLength;\n\n      while (offset < tableEnd) {\n        var i = payloadOffset + offset; // add an entry that maps the elementary_pid to the stream_type\n\n        programMapTable[(packet[i + 1] & 0x1F) << 8 | packet[i + 2]] = packet[i]; // move to the next table entry\n        // skip past the elementary stream descriptors, if present\n\n        offset += ((packet[i + 3] & 0x0F) << 8 | packet[i + 4]) + 5;\n      }\n\n      return programMapTable;\n    };\n\n    var parsePesType = function parsePesType(packet, programMapTable) {\n      var pid = parsePid(packet);\n      var type = programMapTable[pid];\n\n      switch (type) {\n        case streamTypes.H264_STREAM_TYPE:\n          return 'video';\n\n        case streamTypes.ADTS_STREAM_TYPE:\n          return 'audio';\n\n        case streamTypes.METADATA_STREAM_TYPE:\n          return 'timed-metadata';\n\n        default:\n          return null;\n      }\n    };\n\n    var parsePesTime = function parsePesTime(packet) {\n      var pusi = parsePayloadUnitStartIndicator(packet);\n\n      if (!pusi) {\n        return null;\n      }\n\n      var offset = 4 + parseAdaptionField(packet);\n\n      if (offset >= packet.byteLength) {\n        // From the H 222.0 MPEG-TS spec\n        // \"For transport stream packets carrying PES packets, stuffing is needed when there\n        //  is insufficient PES packet data to completely fill the transport stream packet\n        //  payload bytes. Stuffing is accomplished by defining an adaptation field longer than\n        //  the sum of the lengths of the data elements in it, so that the payload bytes\n        //  remaining after the adaptation field exactly accommodates the available PES packet\n        //  data.\"\n        //\n        // If the offset is >= the length of the packet, then the packet contains no data\n        // and instead is just adaption field stuffing bytes\n        return null;\n      }\n\n      var pes = null;\n      var ptsDtsFlags; // PES packets may be annotated with a PTS value, or a PTS value\n      // and a DTS value. Determine what combination of values is\n      // available to work with.\n\n      ptsDtsFlags = packet[offset + 7]; // PTS and DTS are normally stored as a 33-bit number.  Javascript\n      // performs all bitwise operations on 32-bit integers but javascript\n      // supports a much greater range (52-bits) of integer using standard\n      // mathematical operations.\n      // We construct a 31-bit value using bitwise operators over the 31\n      // most significant bits and then multiply by 4 (equal to a left-shift\n      // of 2) before we add the final 2 least significant bits of the\n      // timestamp (equal to an OR.)\n\n      if (ptsDtsFlags & 0xC0) {\n        pes = {}; // the PTS and DTS are not written out directly. For information\n        // on how they are encoded, see\n        // http://dvd.sourceforge.net/dvdinfo/pes-hdr.html\n\n        pes.pts = (packet[offset + 9] & 0x0E) << 27 | (packet[offset + 10] & 0xFF) << 20 | (packet[offset + 11] & 0xFE) << 12 | (packet[offset + 12] & 0xFF) << 5 | (packet[offset + 13] & 0xFE) >>> 3;\n        pes.pts *= 4; // Left shift by 2\n\n        pes.pts += (packet[offset + 13] & 0x06) >>> 1; // OR by the two LSBs\n\n        pes.dts = pes.pts;\n\n        if (ptsDtsFlags & 0x40) {\n          pes.dts = (packet[offset + 14] & 0x0E) << 27 | (packet[offset + 15] & 0xFF) << 20 | (packet[offset + 16] & 0xFE) << 12 | (packet[offset + 17] & 0xFF) << 5 | (packet[offset + 18] & 0xFE) >>> 3;\n          pes.dts *= 4; // Left shift by 2\n\n          pes.dts += (packet[offset + 18] & 0x06) >>> 1; // OR by the two LSBs\n        }\n      }\n\n      return pes;\n    };\n\n    var parseNalUnitType = function parseNalUnitType(type) {\n      switch (type) {\n        case 0x05:\n          return 'slice_layer_without_partitioning_rbsp_idr';\n\n        case 0x06:\n          return 'sei_rbsp';\n\n        case 0x07:\n          return 'seq_parameter_set_rbsp';\n\n        case 0x08:\n          return 'pic_parameter_set_rbsp';\n\n        case 0x09:\n          return 'access_unit_delimiter_rbsp';\n\n        default:\n          return null;\n      }\n    };\n\n    var videoPacketContainsKeyFrame = function videoPacketContainsKeyFrame(packet) {\n      var offset = 4 + parseAdaptionField(packet);\n      var frameBuffer = packet.subarray(offset);\n      var frameI = 0;\n      var frameSyncPoint = 0;\n      var foundKeyFrame = false;\n      var nalType; // advance the sync point to a NAL start, if necessary\n\n      for (; frameSyncPoint < frameBuffer.byteLength - 3; frameSyncPoint++) {\n        if (frameBuffer[frameSyncPoint + 2] === 1) {\n          // the sync point is properly aligned\n          frameI = frameSyncPoint + 5;\n          break;\n        }\n      }\n\n      while (frameI < frameBuffer.byteLength) {\n        // look at the current byte to determine if we've hit the end of\n        // a NAL unit boundary\n        switch (frameBuffer[frameI]) {\n          case 0:\n            // skip past non-sync sequences\n            if (frameBuffer[frameI - 1] !== 0) {\n              frameI += 2;\n              break;\n            } else if (frameBuffer[frameI - 2] !== 0) {\n              frameI++;\n              break;\n            }\n\n            if (frameSyncPoint + 3 !== frameI - 2) {\n              nalType = parseNalUnitType(frameBuffer[frameSyncPoint + 3] & 0x1f);\n\n              if (nalType === 'slice_layer_without_partitioning_rbsp_idr') {\n                foundKeyFrame = true;\n              }\n            } // drop trailing zeroes\n\n\n            do {\n              frameI++;\n            } while (frameBuffer[frameI] !== 1 && frameI < frameBuffer.length);\n\n            frameSyncPoint = frameI - 2;\n            frameI += 3;\n            break;\n\n          case 1:\n            // skip past non-sync sequences\n            if (frameBuffer[frameI - 1] !== 0 || frameBuffer[frameI - 2] !== 0) {\n              frameI += 3;\n              break;\n            }\n\n            nalType = parseNalUnitType(frameBuffer[frameSyncPoint + 3] & 0x1f);\n\n            if (nalType === 'slice_layer_without_partitioning_rbsp_idr') {\n              foundKeyFrame = true;\n            }\n\n            frameSyncPoint = frameI - 2;\n            frameI += 3;\n            break;\n\n          default:\n            // the current byte isn't a one or zero, so it cannot be part\n            // of a sync sequence\n            frameI += 3;\n            break;\n        }\n      }\n\n      frameBuffer = frameBuffer.subarray(frameSyncPoint);\n      frameI -= frameSyncPoint;\n      frameSyncPoint = 0; // parse the final nal\n\n      if (frameBuffer && frameBuffer.byteLength > 3) {\n        nalType = parseNalUnitType(frameBuffer[frameSyncPoint + 3] & 0x1f);\n\n        if (nalType === 'slice_layer_without_partitioning_rbsp_idr') {\n          foundKeyFrame = true;\n        }\n      }\n\n      return foundKeyFrame;\n    };\n\n    var probe$1 = {\n      parseType: parseType,\n      parsePat: parsePat,\n      parsePmt: parsePmt,\n      parsePayloadUnitStartIndicator: parsePayloadUnitStartIndicator,\n      parsePesType: parsePesType,\n      parsePesTime: parsePesTime,\n      videoPacketContainsKeyFrame: videoPacketContainsKeyFrame\n    };\n    var handleRollover = timestampRolloverStream.handleRollover;\n    var probe = {};\n    probe.ts = probe$1;\n    probe.aac = utils;\n    var ONE_SECOND_IN_TS = clock.ONE_SECOND_IN_TS;\n    var MP2T_PACKET_LENGTH = 188,\n        // bytes\n    SYNC_BYTE = 0x47;\n    /**\n     * walks through segment data looking for pat and pmt packets to parse out\n     * program map table information\n     */\n\n    var parsePsi_ = function parsePsi_(bytes, pmt) {\n      var startIndex = 0,\n          endIndex = MP2T_PACKET_LENGTH,\n          packet,\n          type;\n\n      while (endIndex < bytes.byteLength) {\n        // Look for a pair of start and end sync bytes in the data..\n        if (bytes[startIndex] === SYNC_BYTE && bytes[endIndex] === SYNC_BYTE) {\n          // We found a packet\n          packet = bytes.subarray(startIndex, endIndex);\n          type = probe.ts.parseType(packet, pmt.pid);\n\n          switch (type) {\n            case 'pat':\n              pmt.pid = probe.ts.parsePat(packet);\n              break;\n\n            case 'pmt':\n              var table = probe.ts.parsePmt(packet);\n              pmt.table = pmt.table || {};\n              Object.keys(table).forEach(function (key) {\n                pmt.table[key] = table[key];\n              });\n              break;\n          }\n\n          startIndex += MP2T_PACKET_LENGTH;\n          endIndex += MP2T_PACKET_LENGTH;\n          continue;\n        } // If we get here, we have somehow become de-synchronized and we need to step\n        // forward one byte at a time until we find a pair of sync bytes that denote\n        // a packet\n\n\n        startIndex++;\n        endIndex++;\n      }\n    };\n    /**\n     * walks through the segment data from the start and end to get timing information\n     * for the first and last audio pes packets\n     */\n\n\n    var parseAudioPes_ = function parseAudioPes_(bytes, pmt, result) {\n      var startIndex = 0,\n          endIndex = MP2T_PACKET_LENGTH,\n          packet,\n          type,\n          pesType,\n          pusi,\n          parsed;\n      var endLoop = false; // Start walking from start of segment to get first audio packet\n\n      while (endIndex <= bytes.byteLength) {\n        // Look for a pair of start and end sync bytes in the data..\n        if (bytes[startIndex] === SYNC_BYTE && (bytes[endIndex] === SYNC_BYTE || endIndex === bytes.byteLength)) {\n          // We found a packet\n          packet = bytes.subarray(startIndex, endIndex);\n          type = probe.ts.parseType(packet, pmt.pid);\n\n          switch (type) {\n            case 'pes':\n              pesType = probe.ts.parsePesType(packet, pmt.table);\n              pusi = probe.ts.parsePayloadUnitStartIndicator(packet);\n\n              if (pesType === 'audio' && pusi) {\n                parsed = probe.ts.parsePesTime(packet);\n\n                if (parsed) {\n                  parsed.type = 'audio';\n                  result.audio.push(parsed);\n                  endLoop = true;\n                }\n              }\n\n              break;\n          }\n\n          if (endLoop) {\n            break;\n          }\n\n          startIndex += MP2T_PACKET_LENGTH;\n          endIndex += MP2T_PACKET_LENGTH;\n          continue;\n        } // If we get here, we have somehow become de-synchronized and we need to step\n        // forward one byte at a time until we find a pair of sync bytes that denote\n        // a packet\n\n\n        startIndex++;\n        endIndex++;\n      } // Start walking from end of segment to get last audio packet\n\n\n      endIndex = bytes.byteLength;\n      startIndex = endIndex - MP2T_PACKET_LENGTH;\n      endLoop = false;\n\n      while (startIndex >= 0) {\n        // Look for a pair of start and end sync bytes in the data..\n        if (bytes[startIndex] === SYNC_BYTE && (bytes[endIndex] === SYNC_BYTE || endIndex === bytes.byteLength)) {\n          // We found a packet\n          packet = bytes.subarray(startIndex, endIndex);\n          type = probe.ts.parseType(packet, pmt.pid);\n\n          switch (type) {\n            case 'pes':\n              pesType = probe.ts.parsePesType(packet, pmt.table);\n              pusi = probe.ts.parsePayloadUnitStartIndicator(packet);\n\n              if (pesType === 'audio' && pusi) {\n                parsed = probe.ts.parsePesTime(packet);\n\n                if (parsed) {\n                  parsed.type = 'audio';\n                  result.audio.push(parsed);\n                  endLoop = true;\n                }\n              }\n\n              break;\n          }\n\n          if (endLoop) {\n            break;\n          }\n\n          startIndex -= MP2T_PACKET_LENGTH;\n          endIndex -= MP2T_PACKET_LENGTH;\n          continue;\n        } // If we get here, we have somehow become de-synchronized and we need to step\n        // forward one byte at a time until we find a pair of sync bytes that denote\n        // a packet\n\n\n        startIndex--;\n        endIndex--;\n      }\n    };\n    /**\n     * walks through the segment data from the start and end to get timing information\n     * for the first and last video pes packets as well as timing information for the first\n     * key frame.\n     */\n\n\n    var parseVideoPes_ = function parseVideoPes_(bytes, pmt, result) {\n      var startIndex = 0,\n          endIndex = MP2T_PACKET_LENGTH,\n          packet,\n          type,\n          pesType,\n          pusi,\n          parsed,\n          frame,\n          i,\n          pes;\n      var endLoop = false;\n      var currentFrame = {\n        data: [],\n        size: 0\n      }; // Start walking from start of segment to get first video packet\n\n      while (endIndex < bytes.byteLength) {\n        // Look for a pair of start and end sync bytes in the data..\n        if (bytes[startIndex] === SYNC_BYTE && bytes[endIndex] === SYNC_BYTE) {\n          // We found a packet\n          packet = bytes.subarray(startIndex, endIndex);\n          type = probe.ts.parseType(packet, pmt.pid);\n\n          switch (type) {\n            case 'pes':\n              pesType = probe.ts.parsePesType(packet, pmt.table);\n              pusi = probe.ts.parsePayloadUnitStartIndicator(packet);\n\n              if (pesType === 'video') {\n                if (pusi && !endLoop) {\n                  parsed = probe.ts.parsePesTime(packet);\n\n                  if (parsed) {\n                    parsed.type = 'video';\n                    result.video.push(parsed);\n                    endLoop = true;\n                  }\n                }\n\n                if (!result.firstKeyFrame) {\n                  if (pusi) {\n                    if (currentFrame.size !== 0) {\n                      frame = new Uint8Array(currentFrame.size);\n                      i = 0;\n\n                      while (currentFrame.data.length) {\n                        pes = currentFrame.data.shift();\n                        frame.set(pes, i);\n                        i += pes.byteLength;\n                      }\n\n                      if (probe.ts.videoPacketContainsKeyFrame(frame)) {\n                        var firstKeyFrame = probe.ts.parsePesTime(frame); // PTS/DTS may not be available. Simply *not* setting\n                        // the keyframe seems to work fine with HLS playback\n                        // and definitely preferable to a crash with TypeError...\n\n                        if (firstKeyFrame) {\n                          result.firstKeyFrame = firstKeyFrame;\n                          result.firstKeyFrame.type = 'video';\n                        } else {\n                          // eslint-disable-next-line\n                          console.warn('Failed to extract PTS/DTS from PES at first keyframe. ' + 'This could be an unusual TS segment, or else mux.js did not ' + 'parse your TS segment correctly. If you know your TS ' + 'segments do contain PTS/DTS on keyframes please file a bug ' + 'report! You can try ffprobe to double check for yourself.');\n                        }\n                      }\n\n                      currentFrame.size = 0;\n                    }\n                  }\n\n                  currentFrame.data.push(packet);\n                  currentFrame.size += packet.byteLength;\n                }\n              }\n\n              break;\n          }\n\n          if (endLoop && result.firstKeyFrame) {\n            break;\n          }\n\n          startIndex += MP2T_PACKET_LENGTH;\n          endIndex += MP2T_PACKET_LENGTH;\n          continue;\n        } // If we get here, we have somehow become de-synchronized and we need to step\n        // forward one byte at a time until we find a pair of sync bytes that denote\n        // a packet\n\n\n        startIndex++;\n        endIndex++;\n      } // Start walking from end of segment to get last video packet\n\n\n      endIndex = bytes.byteLength;\n      startIndex = endIndex - MP2T_PACKET_LENGTH;\n      endLoop = false;\n\n      while (startIndex >= 0) {\n        // Look for a pair of start and end sync bytes in the data..\n        if (bytes[startIndex] === SYNC_BYTE && bytes[endIndex] === SYNC_BYTE) {\n          // We found a packet\n          packet = bytes.subarray(startIndex, endIndex);\n          type = probe.ts.parseType(packet, pmt.pid);\n\n          switch (type) {\n            case 'pes':\n              pesType = probe.ts.parsePesType(packet, pmt.table);\n              pusi = probe.ts.parsePayloadUnitStartIndicator(packet);\n\n              if (pesType === 'video' && pusi) {\n                parsed = probe.ts.parsePesTime(packet);\n\n                if (parsed) {\n                  parsed.type = 'video';\n                  result.video.push(parsed);\n                  endLoop = true;\n                }\n              }\n\n              break;\n          }\n\n          if (endLoop) {\n            break;\n          }\n\n          startIndex -= MP2T_PACKET_LENGTH;\n          endIndex -= MP2T_PACKET_LENGTH;\n          continue;\n        } // If we get here, we have somehow become de-synchronized and we need to step\n        // forward one byte at a time until we find a pair of sync bytes that denote\n        // a packet\n\n\n        startIndex--;\n        endIndex--;\n      }\n    };\n    /**\n     * Adjusts the timestamp information for the segment to account for\n     * rollover and convert to seconds based on pes packet timescale (90khz clock)\n     */\n\n\n    var adjustTimestamp_ = function adjustTimestamp_(segmentInfo, baseTimestamp) {\n      if (segmentInfo.audio && segmentInfo.audio.length) {\n        var audioBaseTimestamp = baseTimestamp;\n\n        if (typeof audioBaseTimestamp === 'undefined' || isNaN(audioBaseTimestamp)) {\n          audioBaseTimestamp = segmentInfo.audio[0].dts;\n        }\n\n        segmentInfo.audio.forEach(function (info) {\n          info.dts = handleRollover(info.dts, audioBaseTimestamp);\n          info.pts = handleRollover(info.pts, audioBaseTimestamp); // time in seconds\n\n          info.dtsTime = info.dts / ONE_SECOND_IN_TS;\n          info.ptsTime = info.pts / ONE_SECOND_IN_TS;\n        });\n      }\n\n      if (segmentInfo.video && segmentInfo.video.length) {\n        var videoBaseTimestamp = baseTimestamp;\n\n        if (typeof videoBaseTimestamp === 'undefined' || isNaN(videoBaseTimestamp)) {\n          videoBaseTimestamp = segmentInfo.video[0].dts;\n        }\n\n        segmentInfo.video.forEach(function (info) {\n          info.dts = handleRollover(info.dts, videoBaseTimestamp);\n          info.pts = handleRollover(info.pts, videoBaseTimestamp); // time in seconds\n\n          info.dtsTime = info.dts / ONE_SECOND_IN_TS;\n          info.ptsTime = info.pts / ONE_SECOND_IN_TS;\n        });\n\n        if (segmentInfo.firstKeyFrame) {\n          var frame = segmentInfo.firstKeyFrame;\n          frame.dts = handleRollover(frame.dts, videoBaseTimestamp);\n          frame.pts = handleRollover(frame.pts, videoBaseTimestamp); // time in seconds\n\n          frame.dtsTime = frame.dts / ONE_SECOND_IN_TS;\n          frame.ptsTime = frame.pts / ONE_SECOND_IN_TS;\n        }\n      }\n    };\n    /**\n     * inspects the aac data stream for start and end time information\n     */\n\n\n    var inspectAac_ = function inspectAac_(bytes) {\n      var endLoop = false,\n          audioCount = 0,\n          sampleRate = null,\n          timestamp = null,\n          frameSize = 0,\n          byteIndex = 0,\n          packet;\n\n      while (bytes.length - byteIndex >= 3) {\n        var type = probe.aac.parseType(bytes, byteIndex);\n\n        switch (type) {\n          case 'timed-metadata':\n            // Exit early because we don't have enough to parse\n            // the ID3 tag header\n            if (bytes.length - byteIndex < 10) {\n              endLoop = true;\n              break;\n            }\n\n            frameSize = probe.aac.parseId3TagSize(bytes, byteIndex); // Exit early if we don't have enough in the buffer\n            // to emit a full packet\n\n            if (frameSize > bytes.length) {\n              endLoop = true;\n              break;\n            }\n\n            if (timestamp === null) {\n              packet = bytes.subarray(byteIndex, byteIndex + frameSize);\n              timestamp = probe.aac.parseAacTimestamp(packet);\n            }\n\n            byteIndex += frameSize;\n            break;\n\n          case 'audio':\n            // Exit early because we don't have enough to parse\n            // the ADTS frame header\n            if (bytes.length - byteIndex < 7) {\n              endLoop = true;\n              break;\n            }\n\n            frameSize = probe.aac.parseAdtsSize(bytes, byteIndex); // Exit early if we don't have enough in the buffer\n            // to emit a full packet\n\n            if (frameSize > bytes.length) {\n              endLoop = true;\n              break;\n            }\n\n            if (sampleRate === null) {\n              packet = bytes.subarray(byteIndex, byteIndex + frameSize);\n              sampleRate = probe.aac.parseSampleRate(packet);\n            }\n\n            audioCount++;\n            byteIndex += frameSize;\n            break;\n\n          default:\n            byteIndex++;\n            break;\n        }\n\n        if (endLoop) {\n          return null;\n        }\n      }\n\n      if (sampleRate === null || timestamp === null) {\n        return null;\n      }\n\n      var audioTimescale = ONE_SECOND_IN_TS / sampleRate;\n      var result = {\n        audio: [{\n          type: 'audio',\n          dts: timestamp,\n          pts: timestamp\n        }, {\n          type: 'audio',\n          dts: timestamp + audioCount * 1024 * audioTimescale,\n          pts: timestamp + audioCount * 1024 * audioTimescale\n        }]\n      };\n      return result;\n    };\n    /**\n     * inspects the transport stream segment data for start and end time information\n     * of the audio and video tracks (when present) as well as the first key frame's\n     * start time.\n     */\n\n\n    var inspectTs_ = function inspectTs_(bytes) {\n      var pmt = {\n        pid: null,\n        table: null\n      };\n      var result = {};\n      parsePsi_(bytes, pmt);\n\n      for (var pid in pmt.table) {\n        if (pmt.table.hasOwnProperty(pid)) {\n          var type = pmt.table[pid];\n\n          switch (type) {\n            case streamTypes.H264_STREAM_TYPE:\n              result.video = [];\n              parseVideoPes_(bytes, pmt, result);\n\n              if (result.video.length === 0) {\n                delete result.video;\n              }\n\n              break;\n\n            case streamTypes.ADTS_STREAM_TYPE:\n              result.audio = [];\n              parseAudioPes_(bytes, pmt, result);\n\n              if (result.audio.length === 0) {\n                delete result.audio;\n              }\n\n              break;\n          }\n        }\n      }\n\n      return result;\n    };\n    /**\n     * Inspects segment byte data and returns an object with start and end timing information\n     *\n     * @param {Uint8Array} bytes The segment byte data\n     * @param {Number} baseTimestamp Relative reference timestamp used when adjusting frame\n     *  timestamps for rollover. This value must be in 90khz clock.\n     * @return {Object} Object containing start and end frame timing info of segment.\n     */\n\n\n    var inspect = function inspect(bytes, baseTimestamp) {\n      var isAacData = probe.aac.isLikelyAacData(bytes);\n      var result;\n\n      if (isAacData) {\n        result = inspectAac_(bytes);\n      } else {\n        result = inspectTs_(bytes);\n      }\n\n      if (!result || !result.audio && !result.video) {\n        return null;\n      }\n\n      adjustTimestamp_(result, baseTimestamp);\n      return result;\n    };\n\n    var tsInspector = {\n      inspect: inspect,\n      parseAudioPes_: parseAudioPes_\n    };\n    /* global self */\n\n    /**\n     * Re-emits transmuxer events by converting them into messages to the\n     * world outside the worker.\n     *\n     * @param {Object} transmuxer the transmuxer to wire events on\n     * @private\n     */\n\n    var wireTransmuxerEvents = function wireTransmuxerEvents(self, transmuxer) {\n      transmuxer.on('data', function (segment) {\n        // transfer ownership of the underlying ArrayBuffer\n        // instead of doing a copy to save memory\n        // ArrayBuffers are transferable but generic TypedArrays are not\n        // @link https://developer.mozilla.org/en-US/docs/Web/API/Web_Workers_API/Using_web_workers#Passing_data_by_transferring_ownership_(transferable_objects)\n        var initArray = segment.initSegment;\n        segment.initSegment = {\n          data: initArray.buffer,\n          byteOffset: initArray.byteOffset,\n          byteLength: initArray.byteLength\n        };\n        var typedArray = segment.data;\n        segment.data = typedArray.buffer;\n        self.postMessage({\n          action: 'data',\n          segment: segment,\n          byteOffset: typedArray.byteOffset,\n          byteLength: typedArray.byteLength\n        }, [segment.data]);\n      });\n      transmuxer.on('done', function (data) {\n        self.postMessage({\n          action: 'done'\n        });\n      });\n      transmuxer.on('gopInfo', function (gopInfo) {\n        self.postMessage({\n          action: 'gopInfo',\n          gopInfo: gopInfo\n        });\n      });\n      transmuxer.on('videoSegmentTimingInfo', function (timingInfo) {\n        var videoSegmentTimingInfo = {\n          start: {\n            decode: clock.videoTsToSeconds(timingInfo.start.dts),\n            presentation: clock.videoTsToSeconds(timingInfo.start.pts)\n          },\n          end: {\n            decode: clock.videoTsToSeconds(timingInfo.end.dts),\n            presentation: clock.videoTsToSeconds(timingInfo.end.pts)\n          },\n          baseMediaDecodeTime: clock.videoTsToSeconds(timingInfo.baseMediaDecodeTime)\n        };\n\n        if (timingInfo.prependedContentDuration) {\n          videoSegmentTimingInfo.prependedContentDuration = clock.videoTsToSeconds(timingInfo.prependedContentDuration);\n        }\n\n        self.postMessage({\n          action: 'videoSegmentTimingInfo',\n          videoSegmentTimingInfo: videoSegmentTimingInfo\n        });\n      });\n      transmuxer.on('audioSegmentTimingInfo', function (timingInfo) {\n        // Note that all times for [audio/video]SegmentTimingInfo events are in video clock\n        var audioSegmentTimingInfo = {\n          start: {\n            decode: clock.videoTsToSeconds(timingInfo.start.dts),\n            presentation: clock.videoTsToSeconds(timingInfo.start.pts)\n          },\n          end: {\n            decode: clock.videoTsToSeconds(timingInfo.end.dts),\n            presentation: clock.videoTsToSeconds(timingInfo.end.pts)\n          },\n          baseMediaDecodeTime: clock.videoTsToSeconds(timingInfo.baseMediaDecodeTime)\n        };\n\n        if (timingInfo.prependedContentDuration) {\n          audioSegmentTimingInfo.prependedContentDuration = clock.videoTsToSeconds(timingInfo.prependedContentDuration);\n        }\n\n        self.postMessage({\n          action: 'audioSegmentTimingInfo',\n          audioSegmentTimingInfo: audioSegmentTimingInfo\n        });\n      });\n      transmuxer.on('id3Frame', function (id3Frame) {\n        self.postMessage({\n          action: 'id3Frame',\n          id3Frame: id3Frame\n        });\n      });\n      transmuxer.on('caption', function (caption) {\n        self.postMessage({\n          action: 'caption',\n          caption: caption\n        });\n      });\n      transmuxer.on('trackinfo', function (trackInfo) {\n        self.postMessage({\n          action: 'trackinfo',\n          trackInfo: trackInfo\n        });\n      });\n      transmuxer.on('audioTimingInfo', function (audioTimingInfo) {\n        // convert to video TS since we prioritize video time over audio\n        self.postMessage({\n          action: 'audioTimingInfo',\n          audioTimingInfo: {\n            start: clock.videoTsToSeconds(audioTimingInfo.start),\n            end: clock.videoTsToSeconds(audioTimingInfo.end)\n          }\n        });\n      });\n      transmuxer.on('videoTimingInfo', function (videoTimingInfo) {\n        self.postMessage({\n          action: 'videoTimingInfo',\n          videoTimingInfo: {\n            start: clock.videoTsToSeconds(videoTimingInfo.start),\n            end: clock.videoTsToSeconds(videoTimingInfo.end)\n          }\n        });\n      });\n      transmuxer.on('log', function (log) {\n        self.postMessage({\n          action: 'log',\n          log: log\n        });\n      });\n    };\n    /**\n     * All incoming messages route through this hash. If no function exists\n     * to handle an incoming message, then we ignore the message.\n     *\n     * @class MessageHandlers\n     * @param {Object} options the options to initialize with\n     */\n\n\n    var MessageHandlers = /*#__PURE__*/function () {\n      function MessageHandlers(self, options) {\n        this.options = options || {};\n        this.self = self;\n        this.init();\n      }\n      /**\n       * initialize our web worker and wire all the events.\n       */\n\n\n      var _proto = MessageHandlers.prototype;\n\n      _proto.init = function init() {\n        if (this.transmuxer) {\n          this.transmuxer.dispose();\n        }\n\n        this.transmuxer = new transmuxer.Transmuxer(this.options);\n        wireTransmuxerEvents(this.self, this.transmuxer);\n      };\n\n      _proto.pushMp4Captions = function pushMp4Captions(data) {\n        if (!this.captionParser) {\n          this.captionParser = new captionParser();\n          this.captionParser.init();\n        }\n\n        var segment = new Uint8Array(data.data, data.byteOffset, data.byteLength);\n        var parsed = this.captionParser.parse(segment, data.trackIds, data.timescales);\n        this.self.postMessage({\n          action: 'mp4Captions',\n          captions: parsed && parsed.captions || [],\n          logs: parsed && parsed.logs || [],\n          data: segment.buffer\n        }, [segment.buffer]);\n      };\n\n      _proto.probeMp4StartTime = function probeMp4StartTime(_ref) {\n        var timescales = _ref.timescales,\n            data = _ref.data;\n        var startTime = probe$2.startTime(timescales, data);\n        this.self.postMessage({\n          action: 'probeMp4StartTime',\n          startTime: startTime,\n          data: data\n        }, [data.buffer]);\n      };\n\n      _proto.probeMp4Tracks = function probeMp4Tracks(_ref2) {\n        var data = _ref2.data;\n        var tracks = probe$2.tracks(data);\n        this.self.postMessage({\n          action: 'probeMp4Tracks',\n          tracks: tracks,\n          data: data\n        }, [data.buffer]);\n      }\n      /**\n       * Probe an mpeg2-ts segment to determine the start time of the segment in it's\n       * internal \"media time,\" as well as whether it contains video and/or audio.\n       *\n       * @private\n       * @param {Uint8Array} bytes - segment bytes\n       * @param {number} baseStartTime\n       *        Relative reference timestamp used when adjusting frame timestamps for rollover.\n       *        This value should be in seconds, as it's converted to a 90khz clock within the\n       *        function body.\n       * @return {Object} The start time of the current segment in \"media time\" as well as\n       *                  whether it contains video and/or audio\n       */\n      ;\n\n      _proto.probeTs = function probeTs(_ref3) {\n        var data = _ref3.data,\n            baseStartTime = _ref3.baseStartTime;\n        var tsStartTime = typeof baseStartTime === 'number' && !isNaN(baseStartTime) ? baseStartTime * clock.ONE_SECOND_IN_TS : void 0;\n        var timeInfo = tsInspector.inspect(data, tsStartTime);\n        var result = null;\n\n        if (timeInfo) {\n          result = {\n            // each type's time info comes back as an array of 2 times, start and end\n            hasVideo: timeInfo.video && timeInfo.video.length === 2 || false,\n            hasAudio: timeInfo.audio && timeInfo.audio.length === 2 || false\n          };\n\n          if (result.hasVideo) {\n            result.videoStart = timeInfo.video[0].ptsTime;\n          }\n\n          if (result.hasAudio) {\n            result.audioStart = timeInfo.audio[0].ptsTime;\n          }\n        }\n\n        this.self.postMessage({\n          action: 'probeTs',\n          result: result,\n          data: data\n        }, [data.buffer]);\n      };\n\n      _proto.clearAllMp4Captions = function clearAllMp4Captions() {\n        if (this.captionParser) {\n          this.captionParser.clearAllCaptions();\n        }\n      };\n\n      _proto.clearParsedMp4Captions = function clearParsedMp4Captions() {\n        if (this.captionParser) {\n          this.captionParser.clearParsedCaptions();\n        }\n      }\n      /**\n       * Adds data (a ts segment) to the start of the transmuxer pipeline for\n       * processing.\n       *\n       * @param {ArrayBuffer} data data to push into the muxer\n       */\n      ;\n\n      _proto.push = function push(data) {\n        // Cast array buffer to correct type for transmuxer\n        var segment = new Uint8Array(data.data, data.byteOffset, data.byteLength);\n        this.transmuxer.push(segment);\n      }\n      /**\n       * Recreate the transmuxer so that the next segment added via `push`\n       * start with a fresh transmuxer.\n       */\n      ;\n\n      _proto.reset = function reset() {\n        this.transmuxer.reset();\n      }\n      /**\n       * Set the value that will be used as the `baseMediaDecodeTime` time for the\n       * next segment pushed in. Subsequent segments will have their `baseMediaDecodeTime`\n       * set relative to the first based on the PTS values.\n       *\n       * @param {Object} data used to set the timestamp offset in the muxer\n       */\n      ;\n\n      _proto.setTimestampOffset = function setTimestampOffset(data) {\n        var timestampOffset = data.timestampOffset || 0;\n        this.transmuxer.setBaseMediaDecodeTime(Math.round(clock.secondsToVideoTs(timestampOffset)));\n      };\n\n      _proto.setAudioAppendStart = function setAudioAppendStart(data) {\n        this.transmuxer.setAudioAppendStart(Math.ceil(clock.secondsToVideoTs(data.appendStart)));\n      };\n\n      _proto.setRemux = function setRemux(data) {\n        this.transmuxer.setRemux(data.remux);\n      }\n      /**\n       * Forces the pipeline to finish processing the last segment and emit it's\n       * results.\n       *\n       * @param {Object} data event data, not really used\n       */\n      ;\n\n      _proto.flush = function flush(data) {\n        this.transmuxer.flush(); // transmuxed done action is fired after both audio/video pipelines are flushed\n\n        self.postMessage({\n          action: 'done',\n          type: 'transmuxed'\n        });\n      };\n\n      _proto.endTimeline = function endTimeline() {\n        this.transmuxer.endTimeline(); // transmuxed endedtimeline action is fired after both audio/video pipelines end their\n        // timelines\n\n        self.postMessage({\n          action: 'endedtimeline',\n          type: 'transmuxed'\n        });\n      };\n\n      _proto.alignGopsWith = function alignGopsWith(data) {\n        this.transmuxer.alignGopsWith(data.gopsToAlignWith.slice());\n      };\n\n      return MessageHandlers;\n    }();\n    /**\n     * Our web worker interface so that things can talk to mux.js\n     * that will be running in a web worker. the scope is passed to this by\n     * webworkify.\n     *\n     * @param {Object} self the scope for the web worker\n     */\n\n\n    self.onmessage = function (event) {\n      if (event.data.action === 'init' && event.data.options) {\n        this.messageHandlers = new MessageHandlers(self, event.data.options);\n        return;\n      }\n\n      if (!this.messageHandlers) {\n        this.messageHandlers = new MessageHandlers(self);\n      }\n\n      if (event.data && event.data.action && event.data.action !== 'init') {\n        if (this.messageHandlers[event.data.action]) {\n          this.messageHandlers[event.data.action](event.data);\n        }\n      }\n    };\n  }));\n  var TransmuxWorker = factory(workerCode$1);\n  /* rollup-plugin-worker-factory end for worker!/Users/abarstow/videojs/http-streaming/src/transmuxer-worker.js */\n\n  var handleData_ = function handleData_(event, transmuxedData, callback) {\n    var _event$data$segment = event.data.segment,\n        type = _event$data$segment.type,\n        initSegment = _event$data$segment.initSegment,\n        captions = _event$data$segment.captions,\n        captionStreams = _event$data$segment.captionStreams,\n        metadata = _event$data$segment.metadata,\n        videoFrameDtsTime = _event$data$segment.videoFrameDtsTime,\n        videoFramePtsTime = _event$data$segment.videoFramePtsTime;\n    transmuxedData.buffer.push({\n      captions: captions,\n      captionStreams: captionStreams,\n      metadata: metadata\n    });\n    var boxes = event.data.segment.boxes || {\n      data: event.data.segment.data\n    };\n    var result = {\n      type: type,\n      // cast ArrayBuffer to TypedArray\n      data: new Uint8Array(boxes.data, boxes.data.byteOffset, boxes.data.byteLength),\n      initSegment: new Uint8Array(initSegment.data, initSegment.byteOffset, initSegment.byteLength)\n    };\n\n    if (typeof videoFrameDtsTime !== 'undefined') {\n      result.videoFrameDtsTime = videoFrameDtsTime;\n    }\n\n    if (typeof videoFramePtsTime !== 'undefined') {\n      result.videoFramePtsTime = videoFramePtsTime;\n    }\n\n    callback(result);\n  };\n\n  var handleDone_ = function handleDone_(_ref) {\n    var transmuxedData = _ref.transmuxedData,\n        callback = _ref.callback; // Previously we only returned data on data events,\n    // not on done events. Clear out the buffer to keep that consistent.\n\n    transmuxedData.buffer = []; // all buffers should have been flushed from the muxer, so start processing anything we\n    // have received\n\n    callback(transmuxedData);\n  };\n\n  var handleGopInfo_ = function handleGopInfo_(event, transmuxedData) {\n    transmuxedData.gopInfo = event.data.gopInfo;\n  };\n\n  var processTransmux = function processTransmux(options) {\n    var transmuxer = options.transmuxer,\n        bytes = options.bytes,\n        audioAppendStart = options.audioAppendStart,\n        gopsToAlignWith = options.gopsToAlignWith,\n        remux = options.remux,\n        onData = options.onData,\n        onTrackInfo = options.onTrackInfo,\n        onAudioTimingInfo = options.onAudioTimingInfo,\n        onVideoTimingInfo = options.onVideoTimingInfo,\n        onVideoSegmentTimingInfo = options.onVideoSegmentTimingInfo,\n        onAudioSegmentTimingInfo = options.onAudioSegmentTimingInfo,\n        onId3 = options.onId3,\n        onCaptions = options.onCaptions,\n        onDone = options.onDone,\n        onEndedTimeline = options.onEndedTimeline,\n        onTransmuxerLog = options.onTransmuxerLog,\n        isEndOfTimeline = options.isEndOfTimeline;\n    var transmuxedData = {\n      buffer: []\n    };\n    var waitForEndedTimelineEvent = isEndOfTimeline;\n\n    var handleMessage = function handleMessage(event) {\n      if (transmuxer.currentTransmux !== options) {\n        // disposed\n        return;\n      }\n\n      if (event.data.action === 'data') {\n        handleData_(event, transmuxedData, onData);\n      }\n\n      if (event.data.action === 'trackinfo') {\n        onTrackInfo(event.data.trackInfo);\n      }\n\n      if (event.data.action === 'gopInfo') {\n        handleGopInfo_(event, transmuxedData);\n      }\n\n      if (event.data.action === 'audioTimingInfo') {\n        onAudioTimingInfo(event.data.audioTimingInfo);\n      }\n\n      if (event.data.action === 'videoTimingInfo') {\n        onVideoTimingInfo(event.data.videoTimingInfo);\n      }\n\n      if (event.data.action === 'videoSegmentTimingInfo') {\n        onVideoSegmentTimingInfo(event.data.videoSegmentTimingInfo);\n      }\n\n      if (event.data.action === 'audioSegmentTimingInfo') {\n        onAudioSegmentTimingInfo(event.data.audioSegmentTimingInfo);\n      }\n\n      if (event.data.action === 'id3Frame') {\n        onId3([event.data.id3Frame], event.data.id3Frame.dispatchType);\n      }\n\n      if (event.data.action === 'caption') {\n        onCaptions(event.data.caption);\n      }\n\n      if (event.data.action === 'endedtimeline') {\n        waitForEndedTimelineEvent = false;\n        onEndedTimeline();\n      }\n\n      if (event.data.action === 'log') {\n        onTransmuxerLog(event.data.log);\n      } // wait for the transmuxed event since we may have audio and video\n\n\n      if (event.data.type !== 'transmuxed') {\n        return;\n      } // If the \"endedtimeline\" event has not yet fired, and this segment represents the end\n      // of a timeline, that means there may still be data events before the segment\n      // processing can be considerred complete. In that case, the final event should be\n      // an \"endedtimeline\" event with the type \"transmuxed.\"\n\n\n      if (waitForEndedTimelineEvent) {\n        return;\n      }\n\n      transmuxer.onmessage = null;\n      handleDone_({\n        transmuxedData: transmuxedData,\n        callback: onDone\n      });\n      /* eslint-disable no-use-before-define */\n\n      dequeue(transmuxer);\n      /* eslint-enable */\n    };\n\n    transmuxer.onmessage = handleMessage;\n\n    if (audioAppendStart) {\n      transmuxer.postMessage({\n        action: 'setAudioAppendStart',\n        appendStart: audioAppendStart\n      });\n    } // allow empty arrays to be passed to clear out GOPs\n\n\n    if (Array.isArray(gopsToAlignWith)) {\n      transmuxer.postMessage({\n        action: 'alignGopsWith',\n        gopsToAlignWith: gopsToAlignWith\n      });\n    }\n\n    if (typeof remux !== 'undefined') {\n      transmuxer.postMessage({\n        action: 'setRemux',\n        remux: remux\n      });\n    }\n\n    if (bytes.byteLength) {\n      var buffer = bytes instanceof ArrayBuffer ? bytes : bytes.buffer;\n      var byteOffset = bytes instanceof ArrayBuffer ? 0 : bytes.byteOffset;\n      transmuxer.postMessage({\n        action: 'push',\n        // Send the typed-array of data as an ArrayBuffer so that\n        // it can be sent as a \"Transferable\" and avoid the costly\n        // memory copy\n        data: buffer,\n        // To recreate the original typed-array, we need information\n        // about what portion of the ArrayBuffer it was a view into\n        byteOffset: byteOffset,\n        byteLength: bytes.byteLength\n      }, [buffer]);\n    }\n\n    if (isEndOfTimeline) {\n      transmuxer.postMessage({\n        action: 'endTimeline'\n      });\n    } // even if we didn't push any bytes, we have to make sure we flush in case we reached\n    // the end of the segment\n\n\n    transmuxer.postMessage({\n      action: 'flush'\n    });\n  };\n\n  var dequeue = function dequeue(transmuxer) {\n    transmuxer.currentTransmux = null;\n\n    if (transmuxer.transmuxQueue.length) {\n      transmuxer.currentTransmux = transmuxer.transmuxQueue.shift();\n\n      if (typeof transmuxer.currentTransmux === 'function') {\n        transmuxer.currentTransmux();\n      } else {\n        processTransmux(transmuxer.currentTransmux);\n      }\n    }\n  };\n\n  var processAction = function processAction(transmuxer, action) {\n    transmuxer.postMessage({\n      action: action\n    });\n    dequeue(transmuxer);\n  };\n\n  var enqueueAction = function enqueueAction(action, transmuxer) {\n    if (!transmuxer.currentTransmux) {\n      transmuxer.currentTransmux = action;\n      processAction(transmuxer, action);\n      return;\n    }\n\n    transmuxer.transmuxQueue.push(processAction.bind(null, transmuxer, action));\n  };\n\n  var reset = function reset(transmuxer) {\n    enqueueAction('reset', transmuxer);\n  };\n\n  var endTimeline = function endTimeline(transmuxer) {\n    enqueueAction('endTimeline', transmuxer);\n  };\n\n  var transmux = function transmux(options) {\n    if (!options.transmuxer.currentTransmux) {\n      options.transmuxer.currentTransmux = options;\n      processTransmux(options);\n      return;\n    }\n\n    options.transmuxer.transmuxQueue.push(options);\n  };\n\n  var createTransmuxer = function createTransmuxer(options) {\n    var transmuxer = new TransmuxWorker();\n    transmuxer.currentTransmux = null;\n    transmuxer.transmuxQueue = [];\n    var term = transmuxer.terminate;\n\n    transmuxer.terminate = function () {\n      transmuxer.currentTransmux = null;\n      transmuxer.transmuxQueue.length = 0;\n      return term.call(transmuxer);\n    };\n\n    transmuxer.postMessage({\n      action: 'init',\n      options: options\n    });\n    return transmuxer;\n  };\n\n  var segmentTransmuxer = {\n    reset: reset,\n    endTimeline: endTimeline,\n    transmux: transmux,\n    createTransmuxer: createTransmuxer\n  };\n\n  var workerCallback = function workerCallback(options) {\n    var transmuxer = options.transmuxer;\n    var endAction = options.endAction || options.action;\n    var callback = options.callback;\n\n    var message = _extends_1({}, options, {\n      endAction: null,\n      transmuxer: null,\n      callback: null\n    });\n\n    var listenForEndEvent = function listenForEndEvent(event) {\n      if (event.data.action !== endAction) {\n        return;\n      }\n\n      transmuxer.removeEventListener('message', listenForEndEvent); // transfer ownership of bytes back to us.\n\n      if (event.data.data) {\n        event.data.data = new Uint8Array(event.data.data, options.byteOffset || 0, options.byteLength || event.data.data.byteLength);\n\n        if (options.data) {\n          options.data = event.data.data;\n        }\n      }\n\n      callback(event.data);\n    };\n\n    transmuxer.addEventListener('message', listenForEndEvent);\n\n    if (options.data) {\n      var isArrayBuffer = options.data instanceof ArrayBuffer;\n      message.byteOffset = isArrayBuffer ? 0 : options.data.byteOffset;\n      message.byteLength = options.data.byteLength;\n      var transfers = [isArrayBuffer ? options.data : options.data.buffer];\n      transmuxer.postMessage(message, transfers);\n    } else {\n      transmuxer.postMessage(message);\n    }\n  };\n\n  var REQUEST_ERRORS = {\n    FAILURE: 2,\n    TIMEOUT: -101,\n    ABORTED: -102\n  };\n  /**\n   * Abort all requests\n   *\n   * @param {Object} activeXhrs - an object that tracks all XHR requests\n   */\n\n  var abortAll = function abortAll(activeXhrs) {\n    activeXhrs.forEach(function (xhr) {\n      xhr.abort();\n    });\n  };\n  /**\n   * Gather important bandwidth stats once a request has completed\n   *\n   * @param {Object} request - the XHR request from which to gather stats\n   */\n\n\n  var getRequestStats = function getRequestStats(request) {\n    return {\n      bandwidth: request.bandwidth,\n      bytesReceived: request.bytesReceived || 0,\n      roundTripTime: request.roundTripTime || 0\n    };\n  };\n  /**\n   * If possible gather bandwidth stats as a request is in\n   * progress\n   *\n   * @param {Event} progressEvent - an event object from an XHR's progress event\n   */\n\n\n  var getProgressStats = function getProgressStats(progressEvent) {\n    var request = progressEvent.target;\n    var roundTripTime = Date.now() - request.requestTime;\n    var stats = {\n      bandwidth: Infinity,\n      bytesReceived: 0,\n      roundTripTime: roundTripTime || 0\n    };\n    stats.bytesReceived = progressEvent.loaded; // This can result in Infinity if stats.roundTripTime is 0 but that is ok\n    // because we should only use bandwidth stats on progress to determine when\n    // abort a request early due to insufficient bandwidth\n\n    stats.bandwidth = Math.floor(stats.bytesReceived / stats.roundTripTime * 8 * 1000);\n    return stats;\n  };\n  /**\n   * Handle all error conditions in one place and return an object\n   * with all the information\n   *\n   * @param {Error|null} error - if non-null signals an error occured with the XHR\n   * @param {Object} request -  the XHR request that possibly generated the error\n   */\n\n\n  var handleErrors = function handleErrors(error, request) {\n    if (request.timedout) {\n      return {\n        status: request.status,\n        message: 'HLS request timed-out at URL: ' + request.uri,\n        code: REQUEST_ERRORS.TIMEOUT,\n        xhr: request\n      };\n    }\n\n    if (request.aborted) {\n      return {\n        status: request.status,\n        message: 'HLS request aborted at URL: ' + request.uri,\n        code: REQUEST_ERRORS.ABORTED,\n        xhr: request\n      };\n    }\n\n    if (error) {\n      return {\n        status: request.status,\n        message: 'HLS request errored at URL: ' + request.uri,\n        code: REQUEST_ERRORS.FAILURE,\n        xhr: request\n      };\n    }\n\n    if (request.responseType === 'arraybuffer' && request.response.byteLength === 0) {\n      return {\n        status: request.status,\n        message: 'Empty HLS response at URL: ' + request.uri,\n        code: REQUEST_ERRORS.FAILURE,\n        xhr: request\n      };\n    }\n\n    return null;\n  };\n  /**\n   * Handle responses for key data and convert the key data to the correct format\n   * for the decryption step later\n   *\n   * @param {Object} segment - a simplified copy of the segmentInfo object\n   *                           from SegmentLoader\n   * @param {Array} objects - objects to add the key bytes to.\n   * @param {Function} finishProcessingFn - a callback to execute to continue processing\n   *                                        this request\n   */\n\n\n  var handleKeyResponse = function handleKeyResponse(segment, objects, finishProcessingFn) {\n    return function (error, request) {\n      var response = request.response;\n      var errorObj = handleErrors(error, request);\n\n      if (errorObj) {\n        return finishProcessingFn(errorObj, segment);\n      }\n\n      if (response.byteLength !== 16) {\n        return finishProcessingFn({\n          status: request.status,\n          message: 'Invalid HLS key at URL: ' + request.uri,\n          code: REQUEST_ERRORS.FAILURE,\n          xhr: request\n        }, segment);\n      }\n\n      var view = new DataView(response);\n      var bytes = new Uint32Array([view.getUint32(0), view.getUint32(4), view.getUint32(8), view.getUint32(12)]);\n\n      for (var i = 0; i < objects.length; i++) {\n        objects[i].bytes = bytes;\n      }\n\n      return finishProcessingFn(null, segment);\n    };\n  };\n\n  var parseInitSegment = function parseInitSegment(segment, _callback) {\n    var type = detectContainerForBytes(segment.map.bytes); // TODO: We should also handle ts init segments here, but we\n    // only know how to parse mp4 init segments at the moment\n\n    if (type !== 'mp4') {\n      var uri = segment.map.resolvedUri || segment.map.uri;\n      return _callback({\n        internal: true,\n        message: \"Found unsupported \" + (type || 'unknown') + \" container for initialization segment at URL: \" + uri,\n        code: REQUEST_ERRORS.FAILURE\n      });\n    }\n\n    workerCallback({\n      action: 'probeMp4Tracks',\n      data: segment.map.bytes,\n      transmuxer: segment.transmuxer,\n      callback: function callback(_ref) {\n        var tracks = _ref.tracks,\n            data = _ref.data; // transfer bytes back to us\n\n        segment.map.bytes = data;\n        tracks.forEach(function (track) {\n          segment.map.tracks = segment.map.tracks || {}; // only support one track of each type for now\n\n          if (segment.map.tracks[track.type]) {\n            return;\n          }\n\n          segment.map.tracks[track.type] = track;\n\n          if (typeof track.id === 'number' && track.timescale) {\n            segment.map.timescales = segment.map.timescales || {};\n            segment.map.timescales[track.id] = track.timescale;\n          }\n        });\n        return _callback(null);\n      }\n    });\n  };\n  /**\n   * Handle init-segment responses\n   *\n   * @param {Object} segment - a simplified copy of the segmentInfo object\n   *                           from SegmentLoader\n   * @param {Function} finishProcessingFn - a callback to execute to continue processing\n   *                                        this request\n   */\n\n\n  var handleInitSegmentResponse = function handleInitSegmentResponse(_ref2) {\n    var segment = _ref2.segment,\n        finishProcessingFn = _ref2.finishProcessingFn;\n    return function (error, request) {\n      var errorObj = handleErrors(error, request);\n\n      if (errorObj) {\n        return finishProcessingFn(errorObj, segment);\n      }\n\n      var bytes = new Uint8Array(request.response); // init segment is encypted, we will have to wait\n      // until the key request is done to decrypt.\n\n      if (segment.map.key) {\n        segment.map.encryptedBytes = bytes;\n        return finishProcessingFn(null, segment);\n      }\n\n      segment.map.bytes = bytes;\n      parseInitSegment(segment, function (parseError) {\n        if (parseError) {\n          parseError.xhr = request;\n          parseError.status = request.status;\n          return finishProcessingFn(parseError, segment);\n        }\n\n        finishProcessingFn(null, segment);\n      });\n    };\n  };\n  /**\n   * Response handler for segment-requests being sure to set the correct\n   * property depending on whether the segment is encryped or not\n   * Also records and keeps track of stats that are used for ABR purposes\n   *\n   * @param {Object} segment - a simplified copy of the segmentInfo object\n   *                           from SegmentLoader\n   * @param {Function} finishProcessingFn - a callback to execute to continue processing\n   *                                        this request\n   */\n\n\n  var handleSegmentResponse = function handleSegmentResponse(_ref3) {\n    var segment = _ref3.segment,\n        finishProcessingFn = _ref3.finishProcessingFn,\n        responseType = _ref3.responseType;\n    return function (error, request) {\n      var errorObj = handleErrors(error, request);\n\n      if (errorObj) {\n        return finishProcessingFn(errorObj, segment);\n      }\n\n      var newBytes = // although responseText \"should\" exist, this guard serves to prevent an error being\n      // thrown for two primary cases:\n      // 1. the mime type override stops working, or is not implemented for a specific\n      //    browser\n      // 2. when using mock XHR libraries like sinon that do not allow the override behavior\n      responseType === 'arraybuffer' || !request.responseText ? request.response : stringToArrayBuffer(request.responseText.substring(segment.lastReachedChar || 0));\n      segment.stats = getRequestStats(request);\n\n      if (segment.key) {\n        segment.encryptedBytes = new Uint8Array(newBytes);\n      } else {\n        segment.bytes = new Uint8Array(newBytes);\n      }\n\n      return finishProcessingFn(null, segment);\n    };\n  };\n\n  var transmuxAndNotify = function transmuxAndNotify(_ref4) {\n    var segment = _ref4.segment,\n        bytes = _ref4.bytes,\n        trackInfoFn = _ref4.trackInfoFn,\n        timingInfoFn = _ref4.timingInfoFn,\n        videoSegmentTimingInfoFn = _ref4.videoSegmentTimingInfoFn,\n        audioSegmentTimingInfoFn = _ref4.audioSegmentTimingInfoFn,\n        id3Fn = _ref4.id3Fn,\n        captionsFn = _ref4.captionsFn,\n        isEndOfTimeline = _ref4.isEndOfTimeline,\n        endedTimelineFn = _ref4.endedTimelineFn,\n        dataFn = _ref4.dataFn,\n        doneFn = _ref4.doneFn,\n        onTransmuxerLog = _ref4.onTransmuxerLog;\n    var fmp4Tracks = segment.map && segment.map.tracks || {};\n    var isMuxed = Boolean(fmp4Tracks.audio && fmp4Tracks.video); // Keep references to each function so we can null them out after we're done with them.\n    // One reason for this is that in the case of full segments, we want to trust start\n    // times from the probe, rather than the transmuxer.\n\n    var audioStartFn = timingInfoFn.bind(null, segment, 'audio', 'start');\n    var audioEndFn = timingInfoFn.bind(null, segment, 'audio', 'end');\n    var videoStartFn = timingInfoFn.bind(null, segment, 'video', 'start');\n    var videoEndFn = timingInfoFn.bind(null, segment, 'video', 'end');\n\n    var finish = function finish() {\n      return transmux({\n        bytes: bytes,\n        transmuxer: segment.transmuxer,\n        audioAppendStart: segment.audioAppendStart,\n        gopsToAlignWith: segment.gopsToAlignWith,\n        remux: isMuxed,\n        onData: function onData(result) {\n          result.type = result.type === 'combined' ? 'video' : result.type;\n          dataFn(segment, result);\n        },\n        onTrackInfo: function onTrackInfo(trackInfo) {\n          if (trackInfoFn) {\n            if (isMuxed) {\n              trackInfo.isMuxed = true;\n            }\n\n            trackInfoFn(segment, trackInfo);\n          }\n        },\n        onAudioTimingInfo: function onAudioTimingInfo(audioTimingInfo) {\n          // we only want the first start value we encounter\n          if (audioStartFn && typeof audioTimingInfo.start !== 'undefined') {\n            audioStartFn(audioTimingInfo.start);\n            audioStartFn = null;\n          } // we want to continually update the end time\n\n\n          if (audioEndFn && typeof audioTimingInfo.end !== 'undefined') {\n            audioEndFn(audioTimingInfo.end);\n          }\n        },\n        onVideoTimingInfo: function onVideoTimingInfo(videoTimingInfo) {\n          // we only want the first start value we encounter\n          if (videoStartFn && typeof videoTimingInfo.start !== 'undefined') {\n            videoStartFn(videoTimingInfo.start);\n            videoStartFn = null;\n          } // we want to continually update the end time\n\n\n          if (videoEndFn && typeof videoTimingInfo.end !== 'undefined') {\n            videoEndFn(videoTimingInfo.end);\n          }\n        },\n        onVideoSegmentTimingInfo: function onVideoSegmentTimingInfo(videoSegmentTimingInfo) {\n          videoSegmentTimingInfoFn(videoSegmentTimingInfo);\n        },\n        onAudioSegmentTimingInfo: function onAudioSegmentTimingInfo(audioSegmentTimingInfo) {\n          audioSegmentTimingInfoFn(audioSegmentTimingInfo);\n        },\n        onId3: function onId3(id3Frames, dispatchType) {\n          id3Fn(segment, id3Frames, dispatchType);\n        },\n        onCaptions: function onCaptions(captions) {\n          captionsFn(segment, [captions]);\n        },\n        isEndOfTimeline: isEndOfTimeline,\n        onEndedTimeline: function onEndedTimeline() {\n          endedTimelineFn();\n        },\n        onTransmuxerLog: onTransmuxerLog,\n        onDone: function onDone(result) {\n          if (!doneFn) {\n            return;\n          }\n\n          result.type = result.type === 'combined' ? 'video' : result.type;\n          doneFn(null, segment, result);\n        }\n      });\n    }; // In the transmuxer, we don't yet have the ability to extract a \"proper\" start time.\n    // Meaning cached frame data may corrupt our notion of where this segment\n    // really starts. To get around this, probe for the info needed.\n\n\n    workerCallback({\n      action: 'probeTs',\n      transmuxer: segment.transmuxer,\n      data: bytes,\n      baseStartTime: segment.baseStartTime,\n      callback: function callback(data) {\n        segment.bytes = bytes = data.data;\n        var probeResult = data.result;\n\n        if (probeResult) {\n          trackInfoFn(segment, {\n            hasAudio: probeResult.hasAudio,\n            hasVideo: probeResult.hasVideo,\n            isMuxed: isMuxed\n          });\n          trackInfoFn = null;\n\n          if (probeResult.hasAudio && !isMuxed) {\n            audioStartFn(probeResult.audioStart);\n          }\n\n          if (probeResult.hasVideo) {\n            videoStartFn(probeResult.videoStart);\n          }\n\n          audioStartFn = null;\n          videoStartFn = null;\n        }\n\n        finish();\n      }\n    });\n  };\n\n  var handleSegmentBytes = function handleSegmentBytes(_ref5) {\n    var segment = _ref5.segment,\n        bytes = _ref5.bytes,\n        trackInfoFn = _ref5.trackInfoFn,\n        timingInfoFn = _ref5.timingInfoFn,\n        videoSegmentTimingInfoFn = _ref5.videoSegmentTimingInfoFn,\n        audioSegmentTimingInfoFn = _ref5.audioSegmentTimingInfoFn,\n        id3Fn = _ref5.id3Fn,\n        captionsFn = _ref5.captionsFn,\n        isEndOfTimeline = _ref5.isEndOfTimeline,\n        endedTimelineFn = _ref5.endedTimelineFn,\n        dataFn = _ref5.dataFn,\n        doneFn = _ref5.doneFn,\n        onTransmuxerLog = _ref5.onTransmuxerLog;\n    var bytesAsUint8Array = new Uint8Array(bytes); // TODO:\n    // We should have a handler that fetches the number of bytes required\n    // to check if something is fmp4. This will allow us to save bandwidth\n    // because we can only blacklist a playlist and abort requests\n    // by codec after trackinfo triggers.\n\n    if (isLikelyFmp4MediaSegment(bytesAsUint8Array)) {\n      segment.isFmp4 = true;\n      var tracks = segment.map.tracks;\n      var trackInfo = {\n        isFmp4: true,\n        hasVideo: !!tracks.video,\n        hasAudio: !!tracks.audio\n      }; // if we have a audio track, with a codec that is not set to\n      // encrypted audio\n\n      if (tracks.audio && tracks.audio.codec && tracks.audio.codec !== 'enca') {\n        trackInfo.audioCodec = tracks.audio.codec;\n      } // if we have a video track, with a codec that is not set to\n      // encrypted video\n\n\n      if (tracks.video && tracks.video.codec && tracks.video.codec !== 'encv') {\n        trackInfo.videoCodec = tracks.video.codec;\n      }\n\n      if (tracks.video && tracks.audio) {\n        trackInfo.isMuxed = true;\n      } // since we don't support appending fmp4 data on progress, we know we have the full\n      // segment here\n\n\n      trackInfoFn(segment, trackInfo); // The probe doesn't provide the segment end time, so only callback with the start\n      // time. The end time can be roughly calculated by the receiver using the duration.\n      //\n      // Note that the start time returned by the probe reflects the baseMediaDecodeTime, as\n      // that is the true start of the segment (where the playback engine should begin\n      // decoding).\n\n      var finishLoading = function finishLoading(captions) {\n        // if the track still has audio at this point it is only possible\n        // for it to be audio only. See `tracks.video && tracks.audio` if statement\n        // above.\n        // we make sure to use segment.bytes here as that\n        dataFn(segment, {\n          data: bytesAsUint8Array,\n          type: trackInfo.hasAudio && !trackInfo.isMuxed ? 'audio' : 'video'\n        });\n\n        if (captions && captions.length) {\n          captionsFn(segment, captions);\n        }\n\n        doneFn(null, segment, {});\n      };\n\n      workerCallback({\n        action: 'probeMp4StartTime',\n        timescales: segment.map.timescales,\n        data: bytesAsUint8Array,\n        transmuxer: segment.transmuxer,\n        callback: function callback(_ref6) {\n          var data = _ref6.data,\n              startTime = _ref6.startTime; // transfer bytes back to us\n\n          bytes = data.buffer;\n          segment.bytes = bytesAsUint8Array = data;\n\n          if (trackInfo.hasAudio && !trackInfo.isMuxed) {\n            timingInfoFn(segment, 'audio', 'start', startTime);\n          }\n\n          if (trackInfo.hasVideo) {\n            timingInfoFn(segment, 'video', 'start', startTime);\n          } // Run through the CaptionParser in case there are captions.\n          // Initialize CaptionParser if it hasn't been yet\n\n\n          if (!tracks.video || !data.byteLength || !segment.transmuxer) {\n            finishLoading();\n            return;\n          }\n\n          workerCallback({\n            action: 'pushMp4Captions',\n            endAction: 'mp4Captions',\n            transmuxer: segment.transmuxer,\n            data: bytesAsUint8Array,\n            timescales: segment.map.timescales,\n            trackIds: [tracks.video.id],\n            callback: function callback(message) {\n              // transfer bytes back to us\n              bytes = message.data.buffer;\n              segment.bytes = bytesAsUint8Array = message.data;\n              message.logs.forEach(function (log) {\n                onTransmuxerLog(videojs.mergeOptions(log, {\n                  stream: 'mp4CaptionParser'\n                }));\n              });\n              finishLoading(message.captions);\n            }\n          });\n        }\n      });\n      return;\n    } // VTT or other segments that don't need processing\n\n\n    if (!segment.transmuxer) {\n      doneFn(null, segment, {});\n      return;\n    }\n\n    if (typeof segment.container === 'undefined') {\n      segment.container = detectContainerForBytes(bytesAsUint8Array);\n    }\n\n    if (segment.container !== 'ts' && segment.container !== 'aac') {\n      trackInfoFn(segment, {\n        hasAudio: false,\n        hasVideo: false\n      });\n      doneFn(null, segment, {});\n      return;\n    } // ts or aac\n\n\n    transmuxAndNotify({\n      segment: segment,\n      bytes: bytes,\n      trackInfoFn: trackInfoFn,\n      timingInfoFn: timingInfoFn,\n      videoSegmentTimingInfoFn: videoSegmentTimingInfoFn,\n      audioSegmentTimingInfoFn: audioSegmentTimingInfoFn,\n      id3Fn: id3Fn,\n      captionsFn: captionsFn,\n      isEndOfTimeline: isEndOfTimeline,\n      endedTimelineFn: endedTimelineFn,\n      dataFn: dataFn,\n      doneFn: doneFn,\n      onTransmuxerLog: onTransmuxerLog\n    });\n  };\n\n  var decrypt = function decrypt(_ref7, callback) {\n    var id = _ref7.id,\n        key = _ref7.key,\n        encryptedBytes = _ref7.encryptedBytes,\n        decryptionWorker = _ref7.decryptionWorker;\n\n    var decryptionHandler = function decryptionHandler(event) {\n      if (event.data.source === id) {\n        decryptionWorker.removeEventListener('message', decryptionHandler);\n        var decrypted = event.data.decrypted;\n        callback(new Uint8Array(decrypted.bytes, decrypted.byteOffset, decrypted.byteLength));\n      }\n    };\n\n    decryptionWorker.addEventListener('message', decryptionHandler);\n    var keyBytes;\n\n    if (key.bytes.slice) {\n      keyBytes = key.bytes.slice();\n    } else {\n      keyBytes = new Uint32Array(Array.prototype.slice.call(key.bytes));\n    } // incrementally decrypt the bytes\n\n\n    decryptionWorker.postMessage(createTransferableMessage({\n      source: id,\n      encrypted: encryptedBytes,\n      key: keyBytes,\n      iv: key.iv\n    }), [encryptedBytes.buffer, keyBytes.buffer]);\n  };\n  /**\n   * Decrypt the segment via the decryption web worker\n   *\n   * @param {WebWorker} decryptionWorker - a WebWorker interface to AES-128 decryption\n   *                                       routines\n   * @param {Object} segment - a simplified copy of the segmentInfo object\n   *                           from SegmentLoader\n   * @param {Function} trackInfoFn - a callback that receives track info\n   * @param {Function} timingInfoFn - a callback that receives timing info\n   * @param {Function} videoSegmentTimingInfoFn\n   *                   a callback that receives video timing info based on media times and\n   *                   any adjustments made by the transmuxer\n   * @param {Function} audioSegmentTimingInfoFn\n   *                   a callback that receives audio timing info based on media times and\n   *                   any adjustments made by the transmuxer\n   * @param {boolean}  isEndOfTimeline\n   *                   true if this segment represents the last segment in a timeline\n   * @param {Function} endedTimelineFn\n   *                   a callback made when a timeline is ended, will only be called if\n   *                   isEndOfTimeline is true\n   * @param {Function} dataFn - a callback that is executed when segment bytes are available\n   *                            and ready to use\n   * @param {Function} doneFn - a callback that is executed after decryption has completed\n   */\n\n\n  var decryptSegment = function decryptSegment(_ref8) {\n    var decryptionWorker = _ref8.decryptionWorker,\n        segment = _ref8.segment,\n        trackInfoFn = _ref8.trackInfoFn,\n        timingInfoFn = _ref8.timingInfoFn,\n        videoSegmentTimingInfoFn = _ref8.videoSegmentTimingInfoFn,\n        audioSegmentTimingInfoFn = _ref8.audioSegmentTimingInfoFn,\n        id3Fn = _ref8.id3Fn,\n        captionsFn = _ref8.captionsFn,\n        isEndOfTimeline = _ref8.isEndOfTimeline,\n        endedTimelineFn = _ref8.endedTimelineFn,\n        dataFn = _ref8.dataFn,\n        doneFn = _ref8.doneFn,\n        onTransmuxerLog = _ref8.onTransmuxerLog;\n    decrypt({\n      id: segment.requestId,\n      key: segment.key,\n      encryptedBytes: segment.encryptedBytes,\n      decryptionWorker: decryptionWorker\n    }, function (decryptedBytes) {\n      segment.bytes = decryptedBytes;\n      handleSegmentBytes({\n        segment: segment,\n        bytes: segment.bytes,\n        trackInfoFn: trackInfoFn,\n        timingInfoFn: timingInfoFn,\n        videoSegmentTimingInfoFn: videoSegmentTimingInfoFn,\n        audioSegmentTimingInfoFn: audioSegmentTimingInfoFn,\n        id3Fn: id3Fn,\n        captionsFn: captionsFn,\n        isEndOfTimeline: isEndOfTimeline,\n        endedTimelineFn: endedTimelineFn,\n        dataFn: dataFn,\n        doneFn: doneFn,\n        onTransmuxerLog: onTransmuxerLog\n      });\n    });\n  };\n  /**\n   * This function waits for all XHRs to finish (with either success or failure)\n   * before continueing processing via it's callback. The function gathers errors\n   * from each request into a single errors array so that the error status for\n   * each request can be examined later.\n   *\n   * @param {Object} activeXhrs - an object that tracks all XHR requests\n   * @param {WebWorker} decryptionWorker - a WebWorker interface to AES-128 decryption\n   *                                       routines\n   * @param {Function} trackInfoFn - a callback that receives track info\n   * @param {Function} timingInfoFn - a callback that receives timing info\n   * @param {Function} videoSegmentTimingInfoFn\n   *                   a callback that receives video timing info based on media times and\n   *                   any adjustments made by the transmuxer\n   * @param {Function} audioSegmentTimingInfoFn\n   *                   a callback that receives audio timing info based on media times and\n   *                   any adjustments made by the transmuxer\n   * @param {Function} id3Fn - a callback that receives ID3 metadata\n   * @param {Function} captionsFn - a callback that receives captions\n   * @param {boolean}  isEndOfTimeline\n   *                   true if this segment represents the last segment in a timeline\n   * @param {Function} endedTimelineFn\n   *                   a callback made when a timeline is ended, will only be called if\n   *                   isEndOfTimeline is true\n   * @param {Function} dataFn - a callback that is executed when segment bytes are available\n   *                            and ready to use\n   * @param {Function} doneFn - a callback that is executed after all resources have been\n   *                            downloaded and any decryption completed\n   */\n\n\n  var waitForCompletion = function waitForCompletion(_ref9) {\n    var activeXhrs = _ref9.activeXhrs,\n        decryptionWorker = _ref9.decryptionWorker,\n        trackInfoFn = _ref9.trackInfoFn,\n        timingInfoFn = _ref9.timingInfoFn,\n        videoSegmentTimingInfoFn = _ref9.videoSegmentTimingInfoFn,\n        audioSegmentTimingInfoFn = _ref9.audioSegmentTimingInfoFn,\n        id3Fn = _ref9.id3Fn,\n        captionsFn = _ref9.captionsFn,\n        isEndOfTimeline = _ref9.isEndOfTimeline,\n        endedTimelineFn = _ref9.endedTimelineFn,\n        dataFn = _ref9.dataFn,\n        doneFn = _ref9.doneFn,\n        onTransmuxerLog = _ref9.onTransmuxerLog;\n    var count = 0;\n    var didError = false;\n    return function (error, segment) {\n      if (didError) {\n        return;\n      }\n\n      if (error) {\n        didError = true; // If there are errors, we have to abort any outstanding requests\n\n        abortAll(activeXhrs); // Even though the requests above are aborted, and in theory we could wait until we\n        // handle the aborted events from those requests, there are some cases where we may\n        // never get an aborted event. For instance, if the network connection is lost and\n        // there were two requests, the first may have triggered an error immediately, while\n        // the second request remains unsent. In that case, the aborted algorithm will not\n        // trigger an abort: see https://xhr.spec.whatwg.org/#the-abort()-method\n        //\n        // We also can't rely on the ready state of the XHR, since the request that\n        // triggered the connection error may also show as a ready state of 0 (unsent).\n        // Therefore, we have to finish this group of requests immediately after the first\n        // seen error.\n\n        return doneFn(error, segment);\n      }\n\n      count += 1;\n\n      if (count === activeXhrs.length) {\n        var segmentFinish = function segmentFinish() {\n          if (segment.encryptedBytes) {\n            return decryptSegment({\n              decryptionWorker: decryptionWorker,\n              segment: segment,\n              trackInfoFn: trackInfoFn,\n              timingInfoFn: timingInfoFn,\n              videoSegmentTimingInfoFn: videoSegmentTimingInfoFn,\n              audioSegmentTimingInfoFn: audioSegmentTimingInfoFn,\n              id3Fn: id3Fn,\n              captionsFn: captionsFn,\n              isEndOfTimeline: isEndOfTimeline,\n              endedTimelineFn: endedTimelineFn,\n              dataFn: dataFn,\n              doneFn: doneFn,\n              onTransmuxerLog: onTransmuxerLog\n            });\n          } // Otherwise, everything is ready just continue\n\n\n          handleSegmentBytes({\n            segment: segment,\n            bytes: segment.bytes,\n            trackInfoFn: trackInfoFn,\n            timingInfoFn: timingInfoFn,\n            videoSegmentTimingInfoFn: videoSegmentTimingInfoFn,\n            audioSegmentTimingInfoFn: audioSegmentTimingInfoFn,\n            id3Fn: id3Fn,\n            captionsFn: captionsFn,\n            isEndOfTimeline: isEndOfTimeline,\n            endedTimelineFn: endedTimelineFn,\n            dataFn: dataFn,\n            doneFn: doneFn,\n            onTransmuxerLog: onTransmuxerLog\n          });\n        }; // Keep track of when *all* of the requests have completed\n\n\n        segment.endOfAllRequests = Date.now();\n\n        if (segment.map && segment.map.encryptedBytes && !segment.map.bytes) {\n          return decrypt({\n            decryptionWorker: decryptionWorker,\n            // add -init to the \"id\" to differentiate between segment\n            // and init segment decryption, just in case they happen\n            // at the same time at some point in the future.\n            id: segment.requestId + '-init',\n            encryptedBytes: segment.map.encryptedBytes,\n            key: segment.map.key\n          }, function (decryptedBytes) {\n            segment.map.bytes = decryptedBytes;\n            parseInitSegment(segment, function (parseError) {\n              if (parseError) {\n                abortAll(activeXhrs);\n                return doneFn(parseError, segment);\n              }\n\n              segmentFinish();\n            });\n          });\n        }\n\n        segmentFinish();\n      }\n    };\n  };\n  /**\n   * Calls the abort callback if any request within the batch was aborted. Will only call\n   * the callback once per batch of requests, even if multiple were aborted.\n   *\n   * @param {Object} loadendState - state to check to see if the abort function was called\n   * @param {Function} abortFn - callback to call for abort\n   */\n\n\n  var handleLoadEnd = function handleLoadEnd(_ref10) {\n    var loadendState = _ref10.loadendState,\n        abortFn = _ref10.abortFn;\n    return function (event) {\n      var request = event.target;\n\n      if (request.aborted && abortFn && !loadendState.calledAbortFn) {\n        abortFn();\n        loadendState.calledAbortFn = true;\n      }\n    };\n  };\n  /**\n   * Simple progress event callback handler that gathers some stats before\n   * executing a provided callback with the `segment` object\n   *\n   * @param {Object} segment - a simplified copy of the segmentInfo object\n   *                           from SegmentLoader\n   * @param {Function} progressFn - a callback that is executed each time a progress event\n   *                                is received\n   * @param {Function} trackInfoFn - a callback that receives track info\n   * @param {Function} timingInfoFn - a callback that receives timing info\n   * @param {Function} videoSegmentTimingInfoFn\n   *                   a callback that receives video timing info based on media times and\n   *                   any adjustments made by the transmuxer\n   * @param {Function} audioSegmentTimingInfoFn\n   *                   a callback that receives audio timing info based on media times and\n   *                   any adjustments made by the transmuxer\n   * @param {boolean}  isEndOfTimeline\n   *                   true if this segment represents the last segment in a timeline\n   * @param {Function} endedTimelineFn\n   *                   a callback made when a timeline is ended, will only be called if\n   *                   isEndOfTimeline is true\n   * @param {Function} dataFn - a callback that is executed when segment bytes are available\n   *                            and ready to use\n   * @param {Event} event - the progress event object from XMLHttpRequest\n   */\n\n\n  var handleProgress = function handleProgress(_ref11) {\n    var segment = _ref11.segment,\n        progressFn = _ref11.progressFn;\n    _ref11.trackInfoFn;\n    _ref11.timingInfoFn;\n    _ref11.videoSegmentTimingInfoFn;\n    _ref11.audioSegmentTimingInfoFn;\n    _ref11.id3Fn;\n    _ref11.captionsFn;\n    _ref11.isEndOfTimeline;\n    _ref11.endedTimelineFn;\n    _ref11.dataFn;\n    return function (event) {\n      var request = event.target;\n\n      if (request.aborted) {\n        return;\n      }\n\n      segment.stats = videojs.mergeOptions(segment.stats, getProgressStats(event)); // record the time that we receive the first byte of data\n\n      if (!segment.stats.firstBytesReceivedAt && segment.stats.bytesReceived) {\n        segment.stats.firstBytesReceivedAt = Date.now();\n      }\n\n      return progressFn(event, segment);\n    };\n  };\n  /**\n   * Load all resources and does any processing necessary for a media-segment\n   *\n   * Features:\n   *   decrypts the media-segment if it has a key uri and an iv\n   *   aborts *all* requests if *any* one request fails\n   *\n   * The segment object, at minimum, has the following format:\n   * {\n   *   resolvedUri: String,\n   *   [transmuxer]: Object,\n   *   [byterange]: {\n   *     offset: Number,\n   *     length: Number\n   *   },\n   *   [key]: {\n   *     resolvedUri: String\n   *     [byterange]: {\n   *       offset: Number,\n   *       length: Number\n   *     },\n   *     iv: {\n   *       bytes: Uint32Array\n   *     }\n   *   },\n   *   [map]: {\n   *     resolvedUri: String,\n   *     [byterange]: {\n   *       offset: Number,\n   *       length: Number\n   *     },\n   *     [bytes]: Uint8Array\n   *   }\n   * }\n   * ...where [name] denotes optional properties\n   *\n   * @param {Function} xhr - an instance of the xhr wrapper in xhr.js\n   * @param {Object} xhrOptions - the base options to provide to all xhr requests\n   * @param {WebWorker} decryptionWorker - a WebWorker interface to AES-128\n   *                                       decryption routines\n   * @param {Object} segment - a simplified copy of the segmentInfo object\n   *                           from SegmentLoader\n   * @param {Function} abortFn - a callback called (only once) if any piece of a request was\n   *                             aborted\n   * @param {Function} progressFn - a callback that receives progress events from the main\n   *                                segment's xhr request\n   * @param {Function} trackInfoFn - a callback that receives track info\n   * @param {Function} timingInfoFn - a callback that receives timing info\n   * @param {Function} videoSegmentTimingInfoFn\n   *                   a callback that receives video timing info based on media times and\n   *                   any adjustments made by the transmuxer\n   * @param {Function} audioSegmentTimingInfoFn\n   *                   a callback that receives audio timing info based on media times and\n   *                   any adjustments made by the transmuxer\n   * @param {Function} id3Fn - a callback that receives ID3 metadata\n   * @param {Function} captionsFn - a callback that receives captions\n   * @param {boolean}  isEndOfTimeline\n   *                   true if this segment represents the last segment in a timeline\n   * @param {Function} endedTimelineFn\n   *                   a callback made when a timeline is ended, will only be called if\n   *                   isEndOfTimeline is true\n   * @param {Function} dataFn - a callback that receives data from the main segment's xhr\n   *                            request, transmuxed if needed\n   * @param {Function} doneFn - a callback that is executed only once all requests have\n   *                            succeeded or failed\n   * @return {Function} a function that, when invoked, immediately aborts all\n   *                     outstanding requests\n   */\n\n\n  var mediaSegmentRequest = function mediaSegmentRequest(_ref12) {\n    var xhr = _ref12.xhr,\n        xhrOptions = _ref12.xhrOptions,\n        decryptionWorker = _ref12.decryptionWorker,\n        segment = _ref12.segment,\n        abortFn = _ref12.abortFn,\n        progressFn = _ref12.progressFn,\n        trackInfoFn = _ref12.trackInfoFn,\n        timingInfoFn = _ref12.timingInfoFn,\n        videoSegmentTimingInfoFn = _ref12.videoSegmentTimingInfoFn,\n        audioSegmentTimingInfoFn = _ref12.audioSegmentTimingInfoFn,\n        id3Fn = _ref12.id3Fn,\n        captionsFn = _ref12.captionsFn,\n        isEndOfTimeline = _ref12.isEndOfTimeline,\n        endedTimelineFn = _ref12.endedTimelineFn,\n        dataFn = _ref12.dataFn,\n        doneFn = _ref12.doneFn,\n        onTransmuxerLog = _ref12.onTransmuxerLog;\n    var activeXhrs = [];\n    var finishProcessingFn = waitForCompletion({\n      activeXhrs: activeXhrs,\n      decryptionWorker: decryptionWorker,\n      trackInfoFn: trackInfoFn,\n      timingInfoFn: timingInfoFn,\n      videoSegmentTimingInfoFn: videoSegmentTimingInfoFn,\n      audioSegmentTimingInfoFn: audioSegmentTimingInfoFn,\n      id3Fn: id3Fn,\n      captionsFn: captionsFn,\n      isEndOfTimeline: isEndOfTimeline,\n      endedTimelineFn: endedTimelineFn,\n      dataFn: dataFn,\n      doneFn: doneFn,\n      onTransmuxerLog: onTransmuxerLog\n    }); // optionally, request the decryption key\n\n    if (segment.key && !segment.key.bytes) {\n      var objects = [segment.key];\n\n      if (segment.map && !segment.map.bytes && segment.map.key && segment.map.key.resolvedUri === segment.key.resolvedUri) {\n        objects.push(segment.map.key);\n      }\n\n      var keyRequestOptions = videojs.mergeOptions(xhrOptions, {\n        uri: segment.key.resolvedUri,\n        responseType: 'arraybuffer'\n      });\n      var keyRequestCallback = handleKeyResponse(segment, objects, finishProcessingFn);\n      var keyXhr = xhr(keyRequestOptions, keyRequestCallback);\n      activeXhrs.push(keyXhr);\n    } // optionally, request the associated media init segment\n\n\n    if (segment.map && !segment.map.bytes) {\n      var differentMapKey = segment.map.key && (!segment.key || segment.key.resolvedUri !== segment.map.key.resolvedUri);\n\n      if (differentMapKey) {\n        var mapKeyRequestOptions = videojs.mergeOptions(xhrOptions, {\n          uri: segment.map.key.resolvedUri,\n          responseType: 'arraybuffer'\n        });\n        var mapKeyRequestCallback = handleKeyResponse(segment, [segment.map.key], finishProcessingFn);\n        var mapKeyXhr = xhr(mapKeyRequestOptions, mapKeyRequestCallback);\n        activeXhrs.push(mapKeyXhr);\n      }\n\n      var initSegmentOptions = videojs.mergeOptions(xhrOptions, {\n        uri: segment.map.resolvedUri,\n        responseType: 'arraybuffer',\n        headers: segmentXhrHeaders(segment.map)\n      });\n      var initSegmentRequestCallback = handleInitSegmentResponse({\n        segment: segment,\n        finishProcessingFn: finishProcessingFn\n      });\n      var initSegmentXhr = xhr(initSegmentOptions, initSegmentRequestCallback);\n      activeXhrs.push(initSegmentXhr);\n    }\n\n    var segmentRequestOptions = videojs.mergeOptions(xhrOptions, {\n      uri: segment.part && segment.part.resolvedUri || segment.resolvedUri,\n      responseType: 'arraybuffer',\n      headers: segmentXhrHeaders(segment)\n    });\n    var segmentRequestCallback = handleSegmentResponse({\n      segment: segment,\n      finishProcessingFn: finishProcessingFn,\n      responseType: segmentRequestOptions.responseType\n    });\n    var segmentXhr = xhr(segmentRequestOptions, segmentRequestCallback);\n    segmentXhr.addEventListener('progress', handleProgress({\n      segment: segment,\n      progressFn: progressFn,\n      trackInfoFn: trackInfoFn,\n      timingInfoFn: timingInfoFn,\n      videoSegmentTimingInfoFn: videoSegmentTimingInfoFn,\n      audioSegmentTimingInfoFn: audioSegmentTimingInfoFn,\n      id3Fn: id3Fn,\n      captionsFn: captionsFn,\n      isEndOfTimeline: isEndOfTimeline,\n      endedTimelineFn: endedTimelineFn,\n      dataFn: dataFn\n    }));\n    activeXhrs.push(segmentXhr); // since all parts of the request must be considered, but should not make callbacks\n    // multiple times, provide a shared state object\n\n    var loadendState = {};\n    activeXhrs.forEach(function (activeXhr) {\n      activeXhr.addEventListener('loadend', handleLoadEnd({\n        loadendState: loadendState,\n        abortFn: abortFn\n      }));\n    });\n    return function () {\n      return abortAll(activeXhrs);\n    };\n  };\n  /**\n   * @file - codecs.js - Handles tasks regarding codec strings such as translating them to\n   * codec strings, or translating codec strings into objects that can be examined.\n   */\n\n\n  var logFn$1 = logger('CodecUtils');\n  /**\n   * Returns a set of codec strings parsed from the playlist or the default\n   * codec strings if no codecs were specified in the playlist\n   *\n   * @param {Playlist} media the current media playlist\n   * @return {Object} an object with the video and audio codecs\n   */\n\n  var getCodecs = function getCodecs(media) {\n    // if the codecs were explicitly specified, use them instead of the\n    // defaults\n    var mediaAttributes = media.attributes || {};\n\n    if (mediaAttributes.CODECS) {\n      return parseCodecs(mediaAttributes.CODECS);\n    }\n  };\n\n  var isMaat = function isMaat(master, media) {\n    var mediaAttributes = media.attributes || {};\n    return master && master.mediaGroups && master.mediaGroups.AUDIO && mediaAttributes.AUDIO && master.mediaGroups.AUDIO[mediaAttributes.AUDIO];\n  };\n\n  var isMuxed = function isMuxed(master, media) {\n    if (!isMaat(master, media)) {\n      return true;\n    }\n\n    var mediaAttributes = media.attributes || {};\n    var audioGroup = master.mediaGroups.AUDIO[mediaAttributes.AUDIO];\n\n    for (var groupId in audioGroup) {\n      // If an audio group has a URI (the case for HLS, as HLS will use external playlists),\n      // or there are listed playlists (the case for DASH, as the manifest will have already\n      // provided all of the details necessary to generate the audio playlist, as opposed to\n      // HLS' externally requested playlists), then the content is demuxed.\n      if (!audioGroup[groupId].uri && !audioGroup[groupId].playlists) {\n        return true;\n      }\n    }\n\n    return false;\n  };\n\n  var unwrapCodecList = function unwrapCodecList(codecList) {\n    var codecs = {};\n    codecList.forEach(function (_ref) {\n      var mediaType = _ref.mediaType,\n          type = _ref.type,\n          details = _ref.details;\n      codecs[mediaType] = codecs[mediaType] || [];\n      codecs[mediaType].push(translateLegacyCodec(\"\" + type + details));\n    });\n    Object.keys(codecs).forEach(function (mediaType) {\n      if (codecs[mediaType].length > 1) {\n        logFn$1(\"multiple \" + mediaType + \" codecs found as attributes: \" + codecs[mediaType].join(', ') + \". Setting playlist codecs to null so that we wait for mux.js to probe segments for real codecs.\");\n        codecs[mediaType] = null;\n        return;\n      }\n\n      codecs[mediaType] = codecs[mediaType][0];\n    });\n    return codecs;\n  };\n\n  var codecCount = function codecCount(codecObj) {\n    var count = 0;\n\n    if (codecObj.audio) {\n      count++;\n    }\n\n    if (codecObj.video) {\n      count++;\n    }\n\n    return count;\n  };\n  /**\n   * Calculates the codec strings for a working configuration of\n   * SourceBuffers to play variant streams in a master playlist. If\n   * there is no possible working configuration, an empty object will be\n   * returned.\n   *\n   * @param master {Object} the m3u8 object for the master playlist\n   * @param media {Object} the m3u8 object for the variant playlist\n   * @return {Object} the codec strings.\n   *\n   * @private\n   */\n\n\n  var codecsForPlaylist = function codecsForPlaylist(master, media) {\n    var mediaAttributes = media.attributes || {};\n    var codecInfo = unwrapCodecList(getCodecs(media) || []); // HLS with multiple-audio tracks must always get an audio codec.\n    // Put another way, there is no way to have a video-only multiple-audio HLS!\n\n    if (isMaat(master, media) && !codecInfo.audio) {\n      if (!isMuxed(master, media)) {\n        // It is possible for codecs to be specified on the audio media group playlist but\n        // not on the rendition playlist. This is mostly the case for DASH, where audio and\n        // video are always separate (and separately specified).\n        var defaultCodecs = unwrapCodecList(codecsFromDefault(master, mediaAttributes.AUDIO) || []);\n\n        if (defaultCodecs.audio) {\n          codecInfo.audio = defaultCodecs.audio;\n        }\n      }\n    }\n\n    return codecInfo;\n  };\n\n  var logFn = logger('PlaylistSelector');\n\n  var representationToString = function representationToString(representation) {\n    if (!representation || !representation.playlist) {\n      return;\n    }\n\n    var playlist = representation.playlist;\n    return JSON.stringify({\n      id: playlist.id,\n      bandwidth: representation.bandwidth,\n      width: representation.width,\n      height: representation.height,\n      codecs: playlist.attributes && playlist.attributes.CODECS || ''\n    });\n  }; // Utilities\n\n  /**\n   * Returns the CSS value for the specified property on an element\n   * using `getComputedStyle`. Firefox has a long-standing issue where\n   * getComputedStyle() may return null when running in an iframe with\n   * `display: none`.\n   *\n   * @see https://bugzilla.mozilla.org/show_bug.cgi?id=548397\n   * @param {HTMLElement} el the htmlelement to work on\n   * @param {string} the proprety to get the style for\n   */\n\n\n  var safeGetComputedStyle = function safeGetComputedStyle(el, property) {\n    if (!el) {\n      return '';\n    }\n\n    var result = window.getComputedStyle(el);\n\n    if (!result) {\n      return '';\n    }\n\n    return result[property];\n  };\n  /**\n   * Resuable stable sort function\n   *\n   * @param {Playlists} array\n   * @param {Function} sortFn Different comparators\n   * @function stableSort\n   */\n\n\n  var stableSort = function stableSort(array, sortFn) {\n    var newArray = array.slice();\n    array.sort(function (left, right) {\n      var cmp = sortFn(left, right);\n\n      if (cmp === 0) {\n        return newArray.indexOf(left) - newArray.indexOf(right);\n      }\n\n      return cmp;\n    });\n  };\n  /**\n   * A comparator function to sort two playlist object by bandwidth.\n   *\n   * @param {Object} left a media playlist object\n   * @param {Object} right a media playlist object\n   * @return {number} Greater than zero if the bandwidth attribute of\n   * left is greater than the corresponding attribute of right. Less\n   * than zero if the bandwidth of right is greater than left and\n   * exactly zero if the two are equal.\n   */\n\n\n  var comparePlaylistBandwidth = function comparePlaylistBandwidth(left, right) {\n    var leftBandwidth;\n    var rightBandwidth;\n\n    if (left.attributes.BANDWIDTH) {\n      leftBandwidth = left.attributes.BANDWIDTH;\n    }\n\n    leftBandwidth = leftBandwidth || window.Number.MAX_VALUE;\n\n    if (right.attributes.BANDWIDTH) {\n      rightBandwidth = right.attributes.BANDWIDTH;\n    }\n\n    rightBandwidth = rightBandwidth || window.Number.MAX_VALUE;\n    return leftBandwidth - rightBandwidth;\n  };\n  /**\n   * A comparator function to sort two playlist object by resolution (width).\n   *\n   * @param {Object} left a media playlist object\n   * @param {Object} right a media playlist object\n   * @return {number} Greater than zero if the resolution.width attribute of\n   * left is greater than the corresponding attribute of right. Less\n   * than zero if the resolution.width of right is greater than left and\n   * exactly zero if the two are equal.\n   */\n\n\n  var comparePlaylistResolution = function comparePlaylistResolution(left, right) {\n    var leftWidth;\n    var rightWidth;\n\n    if (left.attributes.RESOLUTION && left.attributes.RESOLUTION.width) {\n      leftWidth = left.attributes.RESOLUTION.width;\n    }\n\n    leftWidth = leftWidth || window.Number.MAX_VALUE;\n\n    if (right.attributes.RESOLUTION && right.attributes.RESOLUTION.width) {\n      rightWidth = right.attributes.RESOLUTION.width;\n    }\n\n    rightWidth = rightWidth || window.Number.MAX_VALUE; // NOTE - Fallback to bandwidth sort as appropriate in cases where multiple renditions\n    // have the same media dimensions/ resolution\n\n    if (leftWidth === rightWidth && left.attributes.BANDWIDTH && right.attributes.BANDWIDTH) {\n      return left.attributes.BANDWIDTH - right.attributes.BANDWIDTH;\n    }\n\n    return leftWidth - rightWidth;\n  };\n  /**\n   * Chooses the appropriate media playlist based on bandwidth and player size\n   *\n   * @param {Object} master\n   *        Object representation of the master manifest\n   * @param {number} playerBandwidth\n   *        Current calculated bandwidth of the player\n   * @param {number} playerWidth\n   *        Current width of the player element (should account for the device pixel ratio)\n   * @param {number} playerHeight\n   *        Current height of the player element (should account for the device pixel ratio)\n   * @param {boolean} limitRenditionByPlayerDimensions\n   *        True if the player width and height should be used during the selection, false otherwise\n   * @param {Object} masterPlaylistController\n   *        the current masterPlaylistController object\n   * @return {Playlist} the highest bitrate playlist less than the\n   * currently detected bandwidth, accounting for some amount of\n   * bandwidth variance\n   */\n\n\n  var simpleSelector = function simpleSelector(master, playerBandwidth, playerWidth, playerHeight, limitRenditionByPlayerDimensions, masterPlaylistController) {\n    // If we end up getting called before `master` is available, exit early\n    if (!master) {\n      return;\n    }\n\n    var options = {\n      bandwidth: playerBandwidth,\n      width: playerWidth,\n      height: playerHeight,\n      limitRenditionByPlayerDimensions: limitRenditionByPlayerDimensions\n    };\n    var playlists = master.playlists; // if playlist is audio only, select between currently active audio group playlists.\n\n    if (Playlist.isAudioOnly(master)) {\n      playlists = masterPlaylistController.getAudioTrackPlaylists_(); // add audioOnly to options so that we log audioOnly: true\n      // at the buttom of this function for debugging.\n\n      options.audioOnly = true;\n    } // convert the playlists to an intermediary representation to make comparisons easier\n\n\n    var sortedPlaylistReps = playlists.map(function (playlist) {\n      var bandwidth;\n      var width = playlist.attributes && playlist.attributes.RESOLUTION && playlist.attributes.RESOLUTION.width;\n      var height = playlist.attributes && playlist.attributes.RESOLUTION && playlist.attributes.RESOLUTION.height;\n      bandwidth = playlist.attributes && playlist.attributes.BANDWIDTH;\n      bandwidth = bandwidth || window.Number.MAX_VALUE;\n      return {\n        bandwidth: bandwidth,\n        width: width,\n        height: height,\n        playlist: playlist\n      };\n    });\n    stableSort(sortedPlaylistReps, function (left, right) {\n      return left.bandwidth - right.bandwidth;\n    }); // filter out any playlists that have been excluded due to\n    // incompatible configurations\n\n    sortedPlaylistReps = sortedPlaylistReps.filter(function (rep) {\n      return !Playlist.isIncompatible(rep.playlist);\n    }); // filter out any playlists that have been disabled manually through the representations\n    // api or blacklisted temporarily due to playback errors.\n\n    var enabledPlaylistReps = sortedPlaylistReps.filter(function (rep) {\n      return Playlist.isEnabled(rep.playlist);\n    });\n\n    if (!enabledPlaylistReps.length) {\n      // if there are no enabled playlists, then they have all been blacklisted or disabled\n      // by the user through the representations api. In this case, ignore blacklisting and\n      // fallback to what the user wants by using playlists the user has not disabled.\n      enabledPlaylistReps = sortedPlaylistReps.filter(function (rep) {\n        return !Playlist.isDisabled(rep.playlist);\n      });\n    } // filter out any variant that has greater effective bitrate\n    // than the current estimated bandwidth\n\n\n    var bandwidthPlaylistReps = enabledPlaylistReps.filter(function (rep) {\n      return rep.bandwidth * Config.BANDWIDTH_VARIANCE < playerBandwidth;\n    });\n    var highestRemainingBandwidthRep = bandwidthPlaylistReps[bandwidthPlaylistReps.length - 1]; // get all of the renditions with the same (highest) bandwidth\n    // and then taking the very first element\n\n    var bandwidthBestRep = bandwidthPlaylistReps.filter(function (rep) {\n      return rep.bandwidth === highestRemainingBandwidthRep.bandwidth;\n    })[0]; // if we're not going to limit renditions by player size, make an early decision.\n\n    if (limitRenditionByPlayerDimensions === false) {\n      var _chosenRep = bandwidthBestRep || enabledPlaylistReps[0] || sortedPlaylistReps[0];\n\n      if (_chosenRep && _chosenRep.playlist) {\n        var type = 'sortedPlaylistReps';\n\n        if (bandwidthBestRep) {\n          type = 'bandwidthBestRep';\n        }\n\n        if (enabledPlaylistReps[0]) {\n          type = 'enabledPlaylistReps';\n        }\n\n        logFn(\"choosing \" + representationToString(_chosenRep) + \" using \" + type + \" with options\", options);\n        return _chosenRep.playlist;\n      }\n\n      logFn('could not choose a playlist with options', options);\n      return null;\n    } // filter out playlists without resolution information\n\n\n    var haveResolution = bandwidthPlaylistReps.filter(function (rep) {\n      return rep.width && rep.height;\n    }); // sort variants by resolution\n\n    stableSort(haveResolution, function (left, right) {\n      return left.width - right.width;\n    }); // if we have the exact resolution as the player use it\n\n    var resolutionBestRepList = haveResolution.filter(function (rep) {\n      return rep.width === playerWidth && rep.height === playerHeight;\n    });\n    highestRemainingBandwidthRep = resolutionBestRepList[resolutionBestRepList.length - 1]; // ensure that we pick the highest bandwidth variant that have exact resolution\n\n    var resolutionBestRep = resolutionBestRepList.filter(function (rep) {\n      return rep.bandwidth === highestRemainingBandwidthRep.bandwidth;\n    })[0];\n    var resolutionPlusOneList;\n    var resolutionPlusOneSmallest;\n    var resolutionPlusOneRep; // find the smallest variant that is larger than the player\n    // if there is no match of exact resolution\n\n    if (!resolutionBestRep) {\n      resolutionPlusOneList = haveResolution.filter(function (rep) {\n        return rep.width > playerWidth || rep.height > playerHeight;\n      }); // find all the variants have the same smallest resolution\n\n      resolutionPlusOneSmallest = resolutionPlusOneList.filter(function (rep) {\n        return rep.width === resolutionPlusOneList[0].width && rep.height === resolutionPlusOneList[0].height;\n      }); // ensure that we also pick the highest bandwidth variant that\n      // is just-larger-than the video player\n\n      highestRemainingBandwidthRep = resolutionPlusOneSmallest[resolutionPlusOneSmallest.length - 1];\n      resolutionPlusOneRep = resolutionPlusOneSmallest.filter(function (rep) {\n        return rep.bandwidth === highestRemainingBandwidthRep.bandwidth;\n      })[0];\n    }\n\n    var leastPixelDiffRep; // If this selector proves to be better than others,\n    // resolutionPlusOneRep and resolutionBestRep and all\n    // the code involving them should be removed.\n\n    if (masterPlaylistController.experimentalLeastPixelDiffSelector) {\n      // find the variant that is closest to the player's pixel size\n      var leastPixelDiffList = haveResolution.map(function (rep) {\n        rep.pixelDiff = Math.abs(rep.width - playerWidth) + Math.abs(rep.height - playerHeight);\n        return rep;\n      }); // get the highest bandwidth, closest resolution playlist\n\n      stableSort(leastPixelDiffList, function (left, right) {\n        // sort by highest bandwidth if pixelDiff is the same\n        if (left.pixelDiff === right.pixelDiff) {\n          return right.bandwidth - left.bandwidth;\n        }\n\n        return left.pixelDiff - right.pixelDiff;\n      });\n      leastPixelDiffRep = leastPixelDiffList[0];\n    } // fallback chain of variants\n\n\n    var chosenRep = leastPixelDiffRep || resolutionPlusOneRep || resolutionBestRep || bandwidthBestRep || enabledPlaylistReps[0] || sortedPlaylistReps[0];\n\n    if (chosenRep && chosenRep.playlist) {\n      var _type = 'sortedPlaylistReps';\n\n      if (leastPixelDiffRep) {\n        _type = 'leastPixelDiffRep';\n      } else if (resolutionPlusOneRep) {\n        _type = 'resolutionPlusOneRep';\n      } else if (resolutionBestRep) {\n        _type = 'resolutionBestRep';\n      } else if (bandwidthBestRep) {\n        _type = 'bandwidthBestRep';\n      } else if (enabledPlaylistReps[0]) {\n        _type = 'enabledPlaylistReps';\n      }\n\n      logFn(\"choosing \" + representationToString(chosenRep) + \" using \" + _type + \" with options\", options);\n      return chosenRep.playlist;\n    }\n\n    logFn('could not choose a playlist with options', options);\n    return null;\n  };\n  /**\n   * Chooses the appropriate media playlist based on the most recent\n   * bandwidth estimate and the player size.\n   *\n   * Expects to be called within the context of an instance of VhsHandler\n   *\n   * @return {Playlist} the highest bitrate playlist less than the\n   * currently detected bandwidth, accounting for some amount of\n   * bandwidth variance\n   */\n\n\n  var lastBandwidthSelector = function lastBandwidthSelector() {\n    var pixelRatio = this.useDevicePixelRatio ? window.devicePixelRatio || 1 : 1;\n    return simpleSelector(this.playlists.master, this.systemBandwidth, parseInt(safeGetComputedStyle(this.tech_.el(), 'width'), 10) * pixelRatio, parseInt(safeGetComputedStyle(this.tech_.el(), 'height'), 10) * pixelRatio, this.limitRenditionByPlayerDimensions, this.masterPlaylistController_);\n  };\n  /**\n   * Chooses the appropriate media playlist based on an\n   * exponential-weighted moving average of the bandwidth after\n   * filtering for player size.\n   *\n   * Expects to be called within the context of an instance of VhsHandler\n   *\n   * @param {number} decay - a number between 0 and 1. Higher values of\n   * this parameter will cause previous bandwidth estimates to lose\n   * significance more quickly.\n   * @return {Function} a function which can be invoked to create a new\n   * playlist selector function.\n   * @see https://en.wikipedia.org/wiki/Moving_average#Exponential_moving_average\n   */\n\n\n  var movingAverageBandwidthSelector = function movingAverageBandwidthSelector(decay) {\n    var average = -1;\n    var lastSystemBandwidth = -1;\n\n    if (decay < 0 || decay > 1) {\n      throw new Error('Moving average bandwidth decay must be between 0 and 1.');\n    }\n\n    return function () {\n      var pixelRatio = this.useDevicePixelRatio ? window.devicePixelRatio || 1 : 1;\n\n      if (average < 0) {\n        average = this.systemBandwidth;\n        lastSystemBandwidth = this.systemBandwidth;\n      } // stop the average value from decaying for every 250ms\n      // when the systemBandwidth is constant\n      // and\n      // stop average from setting to a very low value when the\n      // systemBandwidth becomes 0 in case of chunk cancellation\n\n\n      if (this.systemBandwidth > 0 && this.systemBandwidth !== lastSystemBandwidth) {\n        average = decay * this.systemBandwidth + (1 - decay) * average;\n        lastSystemBandwidth = this.systemBandwidth;\n      }\n\n      return simpleSelector(this.playlists.master, average, parseInt(safeGetComputedStyle(this.tech_.el(), 'width'), 10) * pixelRatio, parseInt(safeGetComputedStyle(this.tech_.el(), 'height'), 10) * pixelRatio, this.limitRenditionByPlayerDimensions, this.masterPlaylistController_);\n    };\n  };\n  /**\n   * Chooses the appropriate media playlist based on the potential to rebuffer\n   *\n   * @param {Object} settings\n   *        Object of information required to use this selector\n   * @param {Object} settings.master\n   *        Object representation of the master manifest\n   * @param {number} settings.currentTime\n   *        The current time of the player\n   * @param {number} settings.bandwidth\n   *        Current measured bandwidth\n   * @param {number} settings.duration\n   *        Duration of the media\n   * @param {number} settings.segmentDuration\n   *        Segment duration to be used in round trip time calculations\n   * @param {number} settings.timeUntilRebuffer\n   *        Time left in seconds until the player has to rebuffer\n   * @param {number} settings.currentTimeline\n   *        The current timeline segments are being loaded from\n   * @param {SyncController} settings.syncController\n   *        SyncController for determining if we have a sync point for a given playlist\n   * @return {Object|null}\n   *         {Object} return.playlist\n   *         The highest bandwidth playlist with the least amount of rebuffering\n   *         {Number} return.rebufferingImpact\n   *         The amount of time in seconds switching to this playlist will rebuffer. A\n   *         negative value means that switching will cause zero rebuffering.\n   */\n\n\n  var minRebufferMaxBandwidthSelector = function minRebufferMaxBandwidthSelector(settings) {\n    var master = settings.master,\n        currentTime = settings.currentTime,\n        bandwidth = settings.bandwidth,\n        duration = settings.duration,\n        segmentDuration = settings.segmentDuration,\n        timeUntilRebuffer = settings.timeUntilRebuffer,\n        currentTimeline = settings.currentTimeline,\n        syncController = settings.syncController; // filter out any playlists that have been excluded due to\n    // incompatible configurations\n\n    var compatiblePlaylists = master.playlists.filter(function (playlist) {\n      return !Playlist.isIncompatible(playlist);\n    }); // filter out any playlists that have been disabled manually through the representations\n    // api or blacklisted temporarily due to playback errors.\n\n    var enabledPlaylists = compatiblePlaylists.filter(Playlist.isEnabled);\n\n    if (!enabledPlaylists.length) {\n      // if there are no enabled playlists, then they have all been blacklisted or disabled\n      // by the user through the representations api. In this case, ignore blacklisting and\n      // fallback to what the user wants by using playlists the user has not disabled.\n      enabledPlaylists = compatiblePlaylists.filter(function (playlist) {\n        return !Playlist.isDisabled(playlist);\n      });\n    }\n\n    var bandwidthPlaylists = enabledPlaylists.filter(Playlist.hasAttribute.bind(null, 'BANDWIDTH'));\n    var rebufferingEstimates = bandwidthPlaylists.map(function (playlist) {\n      var syncPoint = syncController.getSyncPoint(playlist, duration, currentTimeline, currentTime); // If there is no sync point for this playlist, switching to it will require a\n      // sync request first. This will double the request time\n\n      var numRequests = syncPoint ? 1 : 2;\n      var requestTimeEstimate = Playlist.estimateSegmentRequestTime(segmentDuration, bandwidth, playlist);\n      var rebufferingImpact = requestTimeEstimate * numRequests - timeUntilRebuffer;\n      return {\n        playlist: playlist,\n        rebufferingImpact: rebufferingImpact\n      };\n    });\n    var noRebufferingPlaylists = rebufferingEstimates.filter(function (estimate) {\n      return estimate.rebufferingImpact <= 0;\n    }); // Sort by bandwidth DESC\n\n    stableSort(noRebufferingPlaylists, function (a, b) {\n      return comparePlaylistBandwidth(b.playlist, a.playlist);\n    });\n\n    if (noRebufferingPlaylists.length) {\n      return noRebufferingPlaylists[0];\n    }\n\n    stableSort(rebufferingEstimates, function (a, b) {\n      return a.rebufferingImpact - b.rebufferingImpact;\n    });\n    return rebufferingEstimates[0] || null;\n  };\n  /**\n   * Chooses the appropriate media playlist, which in this case is the lowest bitrate\n   * one with video.  If no renditions with video exist, return the lowest audio rendition.\n   *\n   * Expects to be called within the context of an instance of VhsHandler\n   *\n   * @return {Object|null}\n   *         {Object} return.playlist\n   *         The lowest bitrate playlist that contains a video codec.  If no such rendition\n   *         exists pick the lowest audio rendition.\n   */\n\n\n  var lowestBitrateCompatibleVariantSelector = function lowestBitrateCompatibleVariantSelector() {\n    var _this = this; // filter out any playlists that have been excluded due to\n    // incompatible configurations or playback errors\n\n\n    var playlists = this.playlists.master.playlists.filter(Playlist.isEnabled); // Sort ascending by bitrate\n\n    stableSort(playlists, function (a, b) {\n      return comparePlaylistBandwidth(a, b);\n    }); // Parse and assume that playlists with no video codec have no video\n    // (this is not necessarily true, although it is generally true).\n    //\n    // If an entire manifest has no valid videos everything will get filtered\n    // out.\n\n    var playlistsWithVideo = playlists.filter(function (playlist) {\n      return !!codecsForPlaylist(_this.playlists.master, playlist).video;\n    });\n    return playlistsWithVideo[0] || null;\n  };\n  /**\n   * Combine all segments into a single Uint8Array\n   *\n   * @param {Object} segmentObj\n   * @return {Uint8Array} concatenated bytes\n   * @private\n   */\n\n\n  var concatSegments = function concatSegments(segmentObj) {\n    var offset = 0;\n    var tempBuffer;\n\n    if (segmentObj.bytes) {\n      tempBuffer = new Uint8Array(segmentObj.bytes); // combine the individual segments into one large typed-array\n\n      segmentObj.segments.forEach(function (segment) {\n        tempBuffer.set(segment, offset);\n        offset += segment.byteLength;\n      });\n    }\n\n    return tempBuffer;\n  };\n  /**\n   * @file text-tracks.js\n   */\n\n  /**\n   * Create captions text tracks on video.js if they do not exist\n   *\n   * @param {Object} inbandTextTracks a reference to current inbandTextTracks\n   * @param {Object} tech the video.js tech\n   * @param {Object} captionStream the caption stream to create\n   * @private\n   */\n\n\n  var createCaptionsTrackIfNotExists = function createCaptionsTrackIfNotExists(inbandTextTracks, tech, captionStream) {\n    if (!inbandTextTracks[captionStream]) {\n      tech.trigger({\n        type: 'usage',\n        name: 'vhs-608'\n      });\n      tech.trigger({\n        type: 'usage',\n        name: 'hls-608'\n      });\n      var instreamId = captionStream; // we need to translate SERVICEn for 708 to how mux.js currently labels them\n\n      if (/^cc708_/.test(captionStream)) {\n        instreamId = 'SERVICE' + captionStream.split('_')[1];\n      }\n\n      var track = tech.textTracks().getTrackById(instreamId);\n\n      if (track) {\n        // Resuse an existing track with a CC# id because this was\n        // very likely created by videojs-contrib-hls from information\n        // in the m3u8 for us to use\n        inbandTextTracks[captionStream] = track;\n      } else {\n        // This section gets called when we have caption services that aren't specified in the manifest.\n        // Manifest level caption services are handled in media-groups.js under CLOSED-CAPTIONS.\n        var captionServices = tech.options_.vhs && tech.options_.vhs.captionServices || {};\n        var label = captionStream;\n        var language = captionStream;\n        var def = false;\n        var captionService = captionServices[instreamId];\n\n        if (captionService) {\n          label = captionService.label;\n          language = captionService.language;\n          def = captionService[\"default\"];\n        } // Otherwise, create a track with the default `CC#` label and\n        // without a language\n\n\n        inbandTextTracks[captionStream] = tech.addRemoteTextTrack({\n          kind: 'captions',\n          id: instreamId,\n          // TODO: investigate why this doesn't seem to turn the caption on by default\n          \"default\": def,\n          label: label,\n          language: language\n        }, false).track;\n      }\n    }\n  };\n  /**\n   * Add caption text track data to a source handler given an array of captions\n   *\n   * @param {Object}\n   *   @param {Object} inbandTextTracks the inband text tracks\n   *   @param {number} timestampOffset the timestamp offset of the source buffer\n   *   @param {Array} captionArray an array of caption data\n   * @private\n   */\n\n\n  var addCaptionData = function addCaptionData(_ref) {\n    var inbandTextTracks = _ref.inbandTextTracks,\n        captionArray = _ref.captionArray,\n        timestampOffset = _ref.timestampOffset;\n\n    if (!captionArray) {\n      return;\n    }\n\n    var Cue = window.WebKitDataCue || window.VTTCue;\n    captionArray.forEach(function (caption) {\n      var track = caption.stream;\n      inbandTextTracks[track].addCue(new Cue(caption.startTime + timestampOffset, caption.endTime + timestampOffset, caption.text));\n    });\n  };\n  /**\n   * Define properties on a cue for backwards compatability,\n   * but warn the user that the way that they are using it\n   * is depricated and will be removed at a later date.\n   *\n   * @param {Cue} cue the cue to add the properties on\n   * @private\n   */\n\n\n  var deprecateOldCue = function deprecateOldCue(cue) {\n    Object.defineProperties(cue.frame, {\n      id: {\n        get: function get() {\n          videojs.log.warn('cue.frame.id is deprecated. Use cue.value.key instead.');\n          return cue.value.key;\n        }\n      },\n      value: {\n        get: function get() {\n          videojs.log.warn('cue.frame.value is deprecated. Use cue.value.data instead.');\n          return cue.value.data;\n        }\n      },\n      privateData: {\n        get: function get() {\n          videojs.log.warn('cue.frame.privateData is deprecated. Use cue.value.data instead.');\n          return cue.value.data;\n        }\n      }\n    });\n  };\n  /**\n   * Add metadata text track data to a source handler given an array of metadata\n   *\n   * @param {Object}\n   *   @param {Object} inbandTextTracks the inband text tracks\n   *   @param {Array} metadataArray an array of meta data\n   *   @param {number} timestampOffset the timestamp offset of the source buffer\n   *   @param {number} videoDuration the duration of the video\n   * @private\n   */\n\n\n  var addMetadata = function addMetadata(_ref2) {\n    var inbandTextTracks = _ref2.inbandTextTracks,\n        metadataArray = _ref2.metadataArray,\n        timestampOffset = _ref2.timestampOffset,\n        videoDuration = _ref2.videoDuration;\n\n    if (!metadataArray) {\n      return;\n    }\n\n    var Cue = window.WebKitDataCue || window.VTTCue;\n    var metadataTrack = inbandTextTracks.metadataTrack_;\n\n    if (!metadataTrack) {\n      return;\n    }\n\n    metadataArray.forEach(function (metadata) {\n      var time = metadata.cueTime + timestampOffset; // if time isn't a finite number between 0 and Infinity, like NaN,\n      // ignore this bit of metadata.\n      // This likely occurs when you have an non-timed ID3 tag like TIT2,\n      // which is the \"Title/Songname/Content description\" frame\n\n      if (typeof time !== 'number' || window.isNaN(time) || time < 0 || !(time < Infinity)) {\n        return;\n      }\n\n      metadata.frames.forEach(function (frame) {\n        var cue = new Cue(time, time, frame.value || frame.url || frame.data || '');\n        cue.frame = frame;\n        cue.value = frame;\n        deprecateOldCue(cue);\n        metadataTrack.addCue(cue);\n      });\n    });\n\n    if (!metadataTrack.cues || !metadataTrack.cues.length) {\n      return;\n    } // Updating the metadeta cues so that\n    // the endTime of each cue is the startTime of the next cue\n    // the endTime of last cue is the duration of the video\n\n\n    var cues = metadataTrack.cues;\n    var cuesArray = []; // Create a copy of the TextTrackCueList...\n    // ...disregarding cues with a falsey value\n\n    for (var i = 0; i < cues.length; i++) {\n      if (cues[i]) {\n        cuesArray.push(cues[i]);\n      }\n    } // Group cues by their startTime value\n\n\n    var cuesGroupedByStartTime = cuesArray.reduce(function (obj, cue) {\n      var timeSlot = obj[cue.startTime] || [];\n      timeSlot.push(cue);\n      obj[cue.startTime] = timeSlot;\n      return obj;\n    }, {}); // Sort startTimes by ascending order\n\n    var sortedStartTimes = Object.keys(cuesGroupedByStartTime).sort(function (a, b) {\n      return Number(a) - Number(b);\n    }); // Map each cue group's endTime to the next group's startTime\n\n    sortedStartTimes.forEach(function (startTime, idx) {\n      var cueGroup = cuesGroupedByStartTime[startTime];\n      var nextTime = Number(sortedStartTimes[idx + 1]) || videoDuration; // Map each cue's endTime the next group's startTime\n\n      cueGroup.forEach(function (cue) {\n        cue.endTime = nextTime;\n      });\n    });\n  };\n  /**\n   * Create metadata text track on video.js if it does not exist\n   *\n   * @param {Object} inbandTextTracks a reference to current inbandTextTracks\n   * @param {string} dispatchType the inband metadata track dispatch type\n   * @param {Object} tech the video.js tech\n   * @private\n   */\n\n\n  var createMetadataTrackIfNotExists = function createMetadataTrackIfNotExists(inbandTextTracks, dispatchType, tech) {\n    if (inbandTextTracks.metadataTrack_) {\n      return;\n    }\n\n    inbandTextTracks.metadataTrack_ = tech.addRemoteTextTrack({\n      kind: 'metadata',\n      label: 'Timed Metadata'\n    }, false).track;\n    inbandTextTracks.metadataTrack_.inBandMetadataTrackDispatchType = dispatchType;\n  };\n  /**\n   * Remove cues from a track on video.js.\n   *\n   * @param {Double} start start of where we should remove the cue\n   * @param {Double} end end of where the we should remove the cue\n   * @param {Object} track the text track to remove the cues from\n   * @private\n   */\n\n\n  var removeCuesFromTrack = function removeCuesFromTrack(start, end, track) {\n    var i;\n    var cue;\n\n    if (!track) {\n      return;\n    }\n\n    if (!track.cues) {\n      return;\n    }\n\n    i = track.cues.length;\n\n    while (i--) {\n      cue = track.cues[i]; // Remove any cue within the provided start and end time\n\n      if (cue.startTime >= start && cue.endTime <= end) {\n        track.removeCue(cue);\n      }\n    }\n  };\n  /**\n   * Remove duplicate cues from a track on video.js (a cue is considered a\n   * duplicate if it has the same time interval and text as another)\n   *\n   * @param {Object} track the text track to remove the duplicate cues from\n   * @private\n   */\n\n\n  var removeDuplicateCuesFromTrack = function removeDuplicateCuesFromTrack(track) {\n    var cues = track.cues;\n\n    if (!cues) {\n      return;\n    }\n\n    for (var i = 0; i < cues.length; i++) {\n      var duplicates = [];\n      var occurrences = 0;\n\n      for (var j = 0; j < cues.length; j++) {\n        if (cues[i].startTime === cues[j].startTime && cues[i].endTime === cues[j].endTime && cues[i].text === cues[j].text) {\n          occurrences++;\n\n          if (occurrences > 1) {\n            duplicates.push(cues[j]);\n          }\n        }\n      }\n\n      if (duplicates.length) {\n        duplicates.forEach(function (dupe) {\n          return track.removeCue(dupe);\n        });\n      }\n    }\n  };\n  /**\n   * Returns a list of gops in the buffer that have a pts value of 3 seconds or more in\n   * front of current time.\n   *\n   * @param {Array} buffer\n   *        The current buffer of gop information\n   * @param {number} currentTime\n   *        The current time\n   * @param {Double} mapping\n   *        Offset to map display time to stream presentation time\n   * @return {Array}\n   *         List of gops considered safe to append over\n   */\n\n\n  var gopsSafeToAlignWith = function gopsSafeToAlignWith(buffer, currentTime, mapping) {\n    if (typeof currentTime === 'undefined' || currentTime === null || !buffer.length) {\n      return [];\n    } // pts value for current time + 3 seconds to give a bit more wiggle room\n\n\n    var currentTimePts = Math.ceil((currentTime - mapping + 3) * clock_1);\n    var i;\n\n    for (i = 0; i < buffer.length; i++) {\n      if (buffer[i].pts > currentTimePts) {\n        break;\n      }\n    }\n\n    return buffer.slice(i);\n  };\n  /**\n   * Appends gop information (timing and byteLength) received by the transmuxer for the\n   * gops appended in the last call to appendBuffer\n   *\n   * @param {Array} buffer\n   *        The current buffer of gop information\n   * @param {Array} gops\n   *        List of new gop information\n   * @param {boolean} replace\n   *        If true, replace the buffer with the new gop information. If false, append the\n   *        new gop information to the buffer in the right location of time.\n   * @return {Array}\n   *         Updated list of gop information\n   */\n\n\n  var updateGopBuffer = function updateGopBuffer(buffer, gops, replace) {\n    if (!gops.length) {\n      return buffer;\n    }\n\n    if (replace) {\n      // If we are in safe append mode, then completely overwrite the gop buffer\n      // with the most recent appeneded data. This will make sure that when appending\n      // future segments, we only try to align with gops that are both ahead of current\n      // time and in the last segment appended.\n      return gops.slice();\n    }\n\n    var start = gops[0].pts;\n    var i = 0;\n\n    for (i; i < buffer.length; i++) {\n      if (buffer[i].pts >= start) {\n        break;\n      }\n    }\n\n    return buffer.slice(0, i).concat(gops);\n  };\n  /**\n   * Removes gop information in buffer that overlaps with provided start and end\n   *\n   * @param {Array} buffer\n   *        The current buffer of gop information\n   * @param {Double} start\n   *        position to start the remove at\n   * @param {Double} end\n   *        position to end the remove at\n   * @param {Double} mapping\n   *        Offset to map display time to stream presentation time\n   */\n\n\n  var removeGopBuffer = function removeGopBuffer(buffer, start, end, mapping) {\n    var startPts = Math.ceil((start - mapping) * clock_1);\n    var endPts = Math.ceil((end - mapping) * clock_1);\n    var updatedBuffer = buffer.slice();\n    var i = buffer.length;\n\n    while (i--) {\n      if (buffer[i].pts <= endPts) {\n        break;\n      }\n    }\n\n    if (i === -1) {\n      // no removal because end of remove range is before start of buffer\n      return updatedBuffer;\n    }\n\n    var j = i + 1;\n\n    while (j--) {\n      if (buffer[j].pts <= startPts) {\n        break;\n      }\n    } // clamp remove range start to 0 index\n\n\n    j = Math.max(j, 0);\n    updatedBuffer.splice(j, i - j + 1);\n    return updatedBuffer;\n  };\n\n  var shallowEqual = function shallowEqual(a, b) {\n    // if both are undefined\n    // or one or the other is undefined\n    // they are not equal\n    if (!a && !b || !a && b || a && !b) {\n      return false;\n    } // they are the same object and thus, equal\n\n\n    if (a === b) {\n      return true;\n    } // sort keys so we can make sure they have\n    // all the same keys later.\n\n\n    var akeys = Object.keys(a).sort();\n    var bkeys = Object.keys(b).sort(); // different number of keys, not equal\n\n    if (akeys.length !== bkeys.length) {\n      return false;\n    }\n\n    for (var i = 0; i < akeys.length; i++) {\n      var key = akeys[i]; // different sorted keys, not equal\n\n      if (key !== bkeys[i]) {\n        return false;\n      } // different values, not equal\n\n\n      if (a[key] !== b[key]) {\n        return false;\n      }\n    }\n\n    return true;\n  }; // https://www.w3.org/TR/WebIDL-1/#quotaexceedederror\n\n\n  var QUOTA_EXCEEDED_ERR = 22;\n  /**\n   * The segment loader has no recourse except to fetch a segment in the\n   * current playlist and use the internal timestamps in that segment to\n   * generate a syncPoint. This function returns a good candidate index\n   * for that process.\n   *\n   * @param {Array} segments - the segments array from a playlist.\n   * @return {number} An index of a segment from the playlist to load\n   */\n\n  var getSyncSegmentCandidate = function getSyncSegmentCandidate(currentTimeline, segments, targetTime) {\n    segments = segments || [];\n    var timelineSegments = [];\n    var time = 0;\n\n    for (var i = 0; i < segments.length; i++) {\n      var segment = segments[i];\n\n      if (currentTimeline === segment.timeline) {\n        timelineSegments.push(i);\n        time += segment.duration;\n\n        if (time > targetTime) {\n          return i;\n        }\n      }\n    }\n\n    if (timelineSegments.length === 0) {\n      return 0;\n    } // default to the last timeline segment\n\n\n    return timelineSegments[timelineSegments.length - 1];\n  }; // In the event of a quota exceeded error, keep at least one second of back buffer. This\n  // number was arbitrarily chosen and may be updated in the future, but seemed reasonable\n  // as a start to prevent any potential issues with removing content too close to the\n  // playhead.\n\n\n  var MIN_BACK_BUFFER = 1; // in ms\n\n  var CHECK_BUFFER_DELAY = 500;\n\n  var finite = function finite(num) {\n    return typeof num === 'number' && isFinite(num);\n  }; // With most content hovering around 30fps, if a segment has a duration less than a half\n  // frame at 30fps or one frame at 60fps, the bandwidth and throughput calculations will\n  // not accurately reflect the rest of the content.\n\n\n  var MIN_SEGMENT_DURATION_TO_SAVE_STATS = 1 / 60;\n\n  var illegalMediaSwitch = function illegalMediaSwitch(loaderType, startingMedia, trackInfo) {\n    // Although these checks should most likely cover non 'main' types, for now it narrows\n    // the scope of our checks.\n    if (loaderType !== 'main' || !startingMedia || !trackInfo) {\n      return null;\n    }\n\n    if (!trackInfo.hasAudio && !trackInfo.hasVideo) {\n      return 'Neither audio nor video found in segment.';\n    }\n\n    if (startingMedia.hasVideo && !trackInfo.hasVideo) {\n      return 'Only audio found in segment when we expected video.' + ' We can\\'t switch to audio only from a stream that had video.' + ' To get rid of this message, please add codec information to the manifest.';\n    }\n\n    if (!startingMedia.hasVideo && trackInfo.hasVideo) {\n      return 'Video found in segment when we expected only audio.' + ' We can\\'t switch to a stream with video from an audio only stream.' + ' To get rid of this message, please add codec information to the manifest.';\n    }\n\n    return null;\n  };\n  /**\n   * Calculates a time value that is safe to remove from the back buffer without interrupting\n   * playback.\n   *\n   * @param {TimeRange} seekable\n   *        The current seekable range\n   * @param {number} currentTime\n   *        The current time of the player\n   * @param {number} targetDuration\n   *        The target duration of the current playlist\n   * @return {number}\n   *         Time that is safe to remove from the back buffer without interrupting playback\n   */\n\n\n  var safeBackBufferTrimTime = function safeBackBufferTrimTime(seekable, currentTime, targetDuration) {\n    // 30 seconds before the playhead provides a safe default for trimming.\n    //\n    // Choosing a reasonable default is particularly important for high bitrate content and\n    // VOD videos/live streams with large windows, as the buffer may end up overfilled and\n    // throw an APPEND_BUFFER_ERR.\n    var trimTime = currentTime - Config.BACK_BUFFER_LENGTH;\n\n    if (seekable.length) {\n      // Some live playlists may have a shorter window of content than the full allowed back\n      // buffer. For these playlists, don't save content that's no longer within the window.\n      trimTime = Math.max(trimTime, seekable.start(0));\n    } // Don't remove within target duration of the current time to avoid the possibility of\n    // removing the GOP currently being played, as removing it can cause playback stalls.\n\n\n    var maxTrimTime = currentTime - targetDuration;\n    return Math.min(maxTrimTime, trimTime);\n  };\n\n  var segmentInfoString = function segmentInfoString(segmentInfo) {\n    var startOfSegment = segmentInfo.startOfSegment,\n        duration = segmentInfo.duration,\n        segment = segmentInfo.segment,\n        part = segmentInfo.part,\n        _segmentInfo$playlist = segmentInfo.playlist,\n        seq = _segmentInfo$playlist.mediaSequence,\n        id = _segmentInfo$playlist.id,\n        _segmentInfo$playlist2 = _segmentInfo$playlist.segments,\n        segments = _segmentInfo$playlist2 === void 0 ? [] : _segmentInfo$playlist2,\n        index = segmentInfo.mediaIndex,\n        partIndex = segmentInfo.partIndex,\n        timeline = segmentInfo.timeline;\n    var segmentLen = segments.length - 1;\n    var selection = 'mediaIndex/partIndex increment';\n\n    if (segmentInfo.getMediaInfoForTime) {\n      selection = \"getMediaInfoForTime (\" + segmentInfo.getMediaInfoForTime + \")\";\n    } else if (segmentInfo.isSyncRequest) {\n      selection = 'getSyncSegmentCandidate (isSyncRequest)';\n    }\n\n    if (segmentInfo.independent) {\n      selection += \" with independent \" + segmentInfo.independent;\n    }\n\n    var hasPartIndex = typeof partIndex === 'number';\n    var name = segmentInfo.segment.uri ? 'segment' : 'pre-segment';\n    var zeroBasedPartCount = hasPartIndex ? getKnownPartCount({\n      preloadSegment: segment\n    }) - 1 : 0;\n    return name + \" [\" + (seq + index) + \"/\" + (seq + segmentLen) + \"]\" + (hasPartIndex ? \" part [\" + partIndex + \"/\" + zeroBasedPartCount + \"]\" : '') + (\" segment start/end [\" + segment.start + \" => \" + segment.end + \"]\") + (hasPartIndex ? \" part start/end [\" + part.start + \" => \" + part.end + \"]\" : '') + (\" startOfSegment [\" + startOfSegment + \"]\") + (\" duration [\" + duration + \"]\") + (\" timeline [\" + timeline + \"]\") + (\" selected by [\" + selection + \"]\") + (\" playlist [\" + id + \"]\");\n  };\n\n  var timingInfoPropertyForMedia = function timingInfoPropertyForMedia(mediaType) {\n    return mediaType + \"TimingInfo\";\n  };\n  /**\n   * Returns the timestamp offset to use for the segment.\n   *\n   * @param {number} segmentTimeline\n   *        The timeline of the segment\n   * @param {number} currentTimeline\n   *        The timeline currently being followed by the loader\n   * @param {number} startOfSegment\n   *        The estimated segment start\n   * @param {TimeRange[]} buffered\n   *        The loader's buffer\n   * @param {boolean} overrideCheck\n   *        If true, no checks are made to see if the timestamp offset value should be set,\n   *        but sets it directly to a value.\n   *\n   * @return {number|null}\n   *         Either a number representing a new timestamp offset, or null if the segment is\n   *         part of the same timeline\n   */\n\n\n  var timestampOffsetForSegment = function timestampOffsetForSegment(_ref) {\n    var segmentTimeline = _ref.segmentTimeline,\n        currentTimeline = _ref.currentTimeline,\n        startOfSegment = _ref.startOfSegment,\n        buffered = _ref.buffered,\n        overrideCheck = _ref.overrideCheck; // Check to see if we are crossing a discontinuity to see if we need to set the\n    // timestamp offset on the transmuxer and source buffer.\n    //\n    // Previously, we changed the timestampOffset if the start of this segment was less than\n    // the currently set timestampOffset, but this isn't desirable as it can produce bad\n    // behavior, especially around long running live streams.\n\n    if (!overrideCheck && segmentTimeline === currentTimeline) {\n      return null;\n    } // When changing renditions, it's possible to request a segment on an older timeline. For\n    // instance, given two renditions with the following:\n    //\n    // #EXTINF:10\n    // segment1\n    // #EXT-X-DISCONTINUITY\n    // #EXTINF:10\n    // segment2\n    // #EXTINF:10\n    // segment3\n    //\n    // And the current player state:\n    //\n    // current time: 8\n    // buffer: 0 => 20\n    //\n    // The next segment on the current rendition would be segment3, filling the buffer from\n    // 20s onwards. However, if a rendition switch happens after segment2 was requested,\n    // then the next segment to be requested will be segment1 from the new rendition in\n    // order to fill time 8 and onwards. Using the buffered end would result in repeated\n    // content (since it would position segment1 of the new rendition starting at 20s). This\n    // case can be identified when the new segment's timeline is a prior value. Instead of\n    // using the buffered end, the startOfSegment can be used, which, hopefully, will be\n    // more accurate to the actual start time of the segment.\n\n\n    if (segmentTimeline < currentTimeline) {\n      return startOfSegment;\n    } // segmentInfo.startOfSegment used to be used as the timestamp offset, however, that\n    // value uses the end of the last segment if it is available. While this value\n    // should often be correct, it's better to rely on the buffered end, as the new\n    // content post discontinuity should line up with the buffered end as if it were\n    // time 0 for the new content.\n\n\n    return buffered.length ? buffered.end(buffered.length - 1) : startOfSegment;\n  };\n  /**\n   * Returns whether or not the loader should wait for a timeline change from the timeline\n   * change controller before processing the segment.\n   *\n   * Primary timing in VHS goes by video. This is different from most media players, as\n   * audio is more often used as the primary timing source. For the foreseeable future, VHS\n   * will continue to use video as the primary timing source, due to the current logic and\n   * expectations built around it.\n\n   * Since the timing follows video, in order to maintain sync, the video loader is\n   * responsible for setting both audio and video source buffer timestamp offsets.\n   *\n   * Setting different values for audio and video source buffers could lead to\n   * desyncing. The following examples demonstrate some of the situations where this\n   * distinction is important. Note that all of these cases involve demuxed content. When\n   * content is muxed, the audio and video are packaged together, therefore syncing\n   * separate media playlists is not an issue.\n   *\n   * CASE 1: Audio prepares to load a new timeline before video:\n   *\n   * Timeline:       0                 1\n   * Audio Segments: 0 1 2 3 4 5 DISCO 6 7 8 9\n   * Audio Loader:                     ^\n   * Video Segments: 0 1 2 3 4 5 DISCO 6 7 8 9\n   * Video Loader              ^\n   *\n   * In the above example, the audio loader is preparing to load the 6th segment, the first\n   * after a discontinuity, while the video loader is still loading the 5th segment, before\n   * the discontinuity.\n   *\n   * If the audio loader goes ahead and loads and appends the 6th segment before the video\n   * loader crosses the discontinuity, then when appended, the 6th audio segment will use\n   * the timestamp offset from timeline 0. This will likely lead to desyncing. In addition,\n   * the audio loader must provide the audioAppendStart value to trim the content in the\n   * transmuxer, and that value relies on the audio timestamp offset. Since the audio\n   * timestamp offset is set by the video (main) loader, the audio loader shouldn't load the\n   * segment until that value is provided.\n   *\n   * CASE 2: Video prepares to load a new timeline before audio:\n   *\n   * Timeline:       0                 1\n   * Audio Segments: 0 1 2 3 4 5 DISCO 6 7 8 9\n   * Audio Loader:             ^\n   * Video Segments: 0 1 2 3 4 5 DISCO 6 7 8 9\n   * Video Loader                      ^\n   *\n   * In the above example, the video loader is preparing to load the 6th segment, the first\n   * after a discontinuity, while the audio loader is still loading the 5th segment, before\n   * the discontinuity.\n   *\n   * If the video loader goes ahead and loads and appends the 6th segment, then once the\n   * segment is loaded and processed, both the video and audio timestamp offsets will be\n   * set, since video is used as the primary timing source. This is to ensure content lines\n   * up appropriately, as any modifications to the video timing are reflected by audio when\n   * the video loader sets the audio and video timestamp offsets to the same value. However,\n   * setting the timestamp offset for audio before audio has had a chance to change\n   * timelines will likely lead to desyncing, as the audio loader will append segment 5 with\n   * a timestamp intended to apply to segments from timeline 1 rather than timeline 0.\n   *\n   * CASE 3: When seeking, audio prepares to load a new timeline before video\n   *\n   * Timeline:       0                 1\n   * Audio Segments: 0 1 2 3 4 5 DISCO 6 7 8 9\n   * Audio Loader:           ^\n   * Video Segments: 0 1 2 3 4 5 DISCO 6 7 8 9\n   * Video Loader            ^\n   *\n   * In the above example, both audio and video loaders are loading segments from timeline\n   * 0, but imagine that the seek originated from timeline 1.\n   *\n   * When seeking to a new timeline, the timestamp offset will be set based on the expected\n   * segment start of the loaded video segment. In order to maintain sync, the audio loader\n   * must wait for the video loader to load its segment and update both the audio and video\n   * timestamp offsets before it may load and append its own segment. This is the case\n   * whether the seek results in a mismatched segment request (e.g., the audio loader\n   * chooses to load segment 3 and the video loader chooses to load segment 4) or the\n   * loaders choose to load the same segment index from each playlist, as the segments may\n   * not be aligned perfectly, even for matching segment indexes.\n   *\n   * @param {Object} timelinechangeController\n   * @param {number} currentTimeline\n   *        The timeline currently being followed by the loader\n   * @param {number} segmentTimeline\n   *        The timeline of the segment being loaded\n   * @param {('main'|'audio')} loaderType\n   *        The loader type\n   * @param {boolean} audioDisabled\n   *        Whether the audio is disabled for the loader. This should only be true when the\n   *        loader may have muxed audio in its segment, but should not append it, e.g., for\n   *        the main loader when an alternate audio playlist is active.\n   *\n   * @return {boolean}\n   *         Whether the loader should wait for a timeline change from the timeline change\n   *         controller before processing the segment\n   */\n\n\n  var shouldWaitForTimelineChange = function shouldWaitForTimelineChange(_ref2) {\n    var timelineChangeController = _ref2.timelineChangeController,\n        currentTimeline = _ref2.currentTimeline,\n        segmentTimeline = _ref2.segmentTimeline,\n        loaderType = _ref2.loaderType,\n        audioDisabled = _ref2.audioDisabled;\n\n    if (currentTimeline === segmentTimeline) {\n      return false;\n    }\n\n    if (loaderType === 'audio') {\n      var lastMainTimelineChange = timelineChangeController.lastTimelineChange({\n        type: 'main'\n      }); // Audio loader should wait if:\n      //\n      // * main hasn't had a timeline change yet (thus has not loaded its first segment)\n      // * main hasn't yet changed to the timeline audio is looking to load\n\n      return !lastMainTimelineChange || lastMainTimelineChange.to !== segmentTimeline;\n    } // The main loader only needs to wait for timeline changes if there's demuxed audio.\n    // Otherwise, there's nothing to wait for, since audio would be muxed into the main\n    // loader's segments (or the content is audio/video only and handled by the main\n    // loader).\n\n\n    if (loaderType === 'main' && audioDisabled) {\n      var pendingAudioTimelineChange = timelineChangeController.pendingTimelineChange({\n        type: 'audio'\n      }); // Main loader should wait for the audio loader if audio is not pending a timeline\n      // change to the current timeline.\n      //\n      // Since the main loader is responsible for setting the timestamp offset for both\n      // audio and video, the main loader must wait for audio to be about to change to its\n      // timeline before setting the offset, otherwise, if audio is behind in loading,\n      // segments from the previous timeline would be adjusted by the new timestamp offset.\n      //\n      // This requirement means that video will not cross a timeline until the audio is\n      // about to cross to it, so that way audio and video will always cross the timeline\n      // together.\n      //\n      // In addition to normal timeline changes, these rules also apply to the start of a\n      // stream (going from a non-existent timeline, -1, to timeline 0). It's important\n      // that these rules apply to the first timeline change because if they did not, it's\n      // possible that the main loader will cross two timelines before the audio loader has\n      // crossed one. Logic may be implemented to handle the startup as a special case, but\n      // it's easier to simply treat all timeline changes the same.\n\n      if (pendingAudioTimelineChange && pendingAudioTimelineChange.to === segmentTimeline) {\n        return false;\n      }\n\n      return true;\n    }\n\n    return false;\n  };\n\n  var mediaDuration = function mediaDuration(timingInfos) {\n    var maxDuration = 0;\n    ['video', 'audio'].forEach(function (type) {\n      var typeTimingInfo = timingInfos[type + \"TimingInfo\"];\n\n      if (!typeTimingInfo) {\n        return;\n      }\n\n      var start = typeTimingInfo.start,\n          end = typeTimingInfo.end;\n      var duration;\n\n      if (typeof start === 'bigint' || typeof end === 'bigint') {\n        duration = window.BigInt(end) - window.BigInt(start);\n      } else if (typeof start === 'number' && typeof end === 'number') {\n        duration = end - start;\n      }\n\n      if (typeof duration !== 'undefined' && duration > maxDuration) {\n        maxDuration = duration;\n      }\n    }); // convert back to a number if it is lower than MAX_SAFE_INTEGER\n    // as we only need BigInt when we are above that.\n\n    if (typeof maxDuration === 'bigint' && maxDuration < Number.MAX_SAFE_INTEGER) {\n      maxDuration = Number(maxDuration);\n    }\n\n    return maxDuration;\n  };\n\n  var segmentTooLong = function segmentTooLong(_ref3) {\n    var segmentDuration = _ref3.segmentDuration,\n        maxDuration = _ref3.maxDuration; // 0 duration segments are most likely due to metadata only segments or a lack of\n    // information.\n\n    if (!segmentDuration) {\n      return false;\n    } // For HLS:\n    //\n    // https://tools.ietf.org/html/draft-pantos-http-live-streaming-23#section-4.3.3.1\n    // The EXTINF duration of each Media Segment in the Playlist\n    // file, when rounded to the nearest integer, MUST be less than or equal\n    // to the target duration; longer segments can trigger playback stalls\n    // or other errors.\n    //\n    // For DASH, the mpd-parser uses the largest reported segment duration as the target\n    // duration. Although that reported duration is occasionally approximate (i.e., not\n    // exact), a strict check may report that a segment is too long more often in DASH.\n\n\n    return Math.round(segmentDuration) > maxDuration + TIME_FUDGE_FACTOR;\n  };\n\n  var getTroublesomeSegmentDurationMessage = function getTroublesomeSegmentDurationMessage(segmentInfo, sourceType) {\n    // Right now we aren't following DASH's timing model exactly, so only perform\n    // this check for HLS content.\n    if (sourceType !== 'hls') {\n      return null;\n    }\n\n    var segmentDuration = mediaDuration({\n      audioTimingInfo: segmentInfo.audioTimingInfo,\n      videoTimingInfo: segmentInfo.videoTimingInfo\n    }); // Don't report if we lack information.\n    //\n    // If the segment has a duration of 0 it is either a lack of information or a\n    // metadata only segment and shouldn't be reported here.\n\n    if (!segmentDuration) {\n      return null;\n    }\n\n    var targetDuration = segmentInfo.playlist.targetDuration;\n    var isSegmentWayTooLong = segmentTooLong({\n      segmentDuration: segmentDuration,\n      maxDuration: targetDuration * 2\n    });\n    var isSegmentSlightlyTooLong = segmentTooLong({\n      segmentDuration: segmentDuration,\n      maxDuration: targetDuration\n    });\n    var segmentTooLongMessage = \"Segment with index \" + segmentInfo.mediaIndex + \" \" + (\"from playlist \" + segmentInfo.playlist.id + \" \") + (\"has a duration of \" + segmentDuration + \" \") + (\"when the reported duration is \" + segmentInfo.duration + \" \") + (\"and the target duration is \" + targetDuration + \". \") + 'For HLS content, a duration in excess of the target duration may result in ' + 'playback issues. See the HLS specification section on EXT-X-TARGETDURATION for ' + 'more details: ' + 'https://tools.ietf.org/html/draft-pantos-http-live-streaming-23#section-4.3.3.1';\n\n    if (isSegmentWayTooLong || isSegmentSlightlyTooLong) {\n      return {\n        severity: isSegmentWayTooLong ? 'warn' : 'info',\n        message: segmentTooLongMessage\n      };\n    }\n\n    return null;\n  };\n  /**\n   * An object that manages segment loading and appending.\n   *\n   * @class SegmentLoader\n   * @param {Object} options required and optional options\n   * @extends videojs.EventTarget\n   */\n\n\n  var SegmentLoader = /*#__PURE__*/function (_videojs$EventTarget) {\n    inheritsLoose(SegmentLoader, _videojs$EventTarget);\n\n    function SegmentLoader(settings, options) {\n      var _this;\n\n      _this = _videojs$EventTarget.call(this) || this; // check pre-conditions\n\n      if (!settings) {\n        throw new TypeError('Initialization settings are required');\n      }\n\n      if (typeof settings.currentTime !== 'function') {\n        throw new TypeError('No currentTime getter specified');\n      }\n\n      if (!settings.mediaSource) {\n        throw new TypeError('No MediaSource specified');\n      } // public properties\n\n\n      _this.bandwidth = settings.bandwidth;\n      _this.throughput = {\n        rate: 0,\n        count: 0\n      };\n      _this.roundTrip = NaN;\n\n      _this.resetStats_();\n\n      _this.mediaIndex = null;\n      _this.partIndex = null; // private settings\n\n      _this.hasPlayed_ = settings.hasPlayed;\n      _this.currentTime_ = settings.currentTime;\n      _this.seekable_ = settings.seekable;\n      _this.seeking_ = settings.seeking;\n      _this.duration_ = settings.duration;\n      _this.mediaSource_ = settings.mediaSource;\n      _this.vhs_ = settings.vhs;\n      _this.loaderType_ = settings.loaderType;\n      _this.currentMediaInfo_ = void 0;\n      _this.startingMediaInfo_ = void 0;\n      _this.segmentMetadataTrack_ = settings.segmentMetadataTrack;\n      _this.goalBufferLength_ = settings.goalBufferLength;\n      _this.sourceType_ = settings.sourceType;\n      _this.sourceUpdater_ = settings.sourceUpdater;\n      _this.inbandTextTracks_ = settings.inbandTextTracks;\n      _this.state_ = 'INIT';\n      _this.timelineChangeController_ = settings.timelineChangeController;\n      _this.shouldSaveSegmentTimingInfo_ = true;\n      _this.parse708captions_ = settings.parse708captions;\n      _this.useDtsForTimestampOffset_ = settings.useDtsForTimestampOffset;\n      _this.captionServices_ = settings.captionServices;\n      _this.experimentalExactManifestTimings = settings.experimentalExactManifestTimings; // private instance variables\n\n      _this.checkBufferTimeout_ = null;\n      _this.error_ = void 0;\n      _this.currentTimeline_ = -1;\n      _this.pendingSegment_ = null;\n      _this.xhrOptions_ = null;\n      _this.pendingSegments_ = [];\n      _this.audioDisabled_ = false;\n      _this.isPendingTimestampOffset_ = false; // TODO possibly move gopBuffer and timeMapping info to a separate controller\n\n      _this.gopBuffer_ = [];\n      _this.timeMapping_ = 0;\n      _this.safeAppend_ = videojs.browser.IE_VERSION >= 11;\n      _this.appendInitSegment_ = {\n        audio: true,\n        video: true\n      };\n      _this.playlistOfLastInitSegment_ = {\n        audio: null,\n        video: null\n      };\n      _this.callQueue_ = []; // If the segment loader prepares to load a segment, but does not have enough\n      // information yet to start the loading process (e.g., if the audio loader wants to\n      // load a segment from the next timeline but the main loader hasn't yet crossed that\n      // timeline), then the load call will be added to the queue until it is ready to be\n      // processed.\n\n      _this.loadQueue_ = [];\n      _this.metadataQueue_ = {\n        id3: [],\n        caption: []\n      };\n      _this.waitingOnRemove_ = false;\n      _this.quotaExceededErrorRetryTimeout_ = null; // Fragmented mp4 playback\n\n      _this.activeInitSegmentId_ = null;\n      _this.initSegments_ = {}; // HLSe playback\n\n      _this.cacheEncryptionKeys_ = settings.cacheEncryptionKeys;\n      _this.keyCache_ = {};\n      _this.decrypter_ = settings.decrypter; // Manages the tracking and generation of sync-points, mappings\n      // between a time in the display time and a segment index within\n      // a playlist\n\n      _this.syncController_ = settings.syncController;\n      _this.syncPoint_ = {\n        segmentIndex: 0,\n        time: 0\n      };\n      _this.transmuxer_ = _this.createTransmuxer_();\n\n      _this.triggerSyncInfoUpdate_ = function () {\n        return _this.trigger('syncinfoupdate');\n      };\n\n      _this.syncController_.on('syncinfoupdate', _this.triggerSyncInfoUpdate_);\n\n      _this.mediaSource_.addEventListener('sourceopen', function () {\n        if (!_this.isEndOfStream_()) {\n          _this.ended_ = false;\n        }\n      }); // ...for determining the fetch location\n\n\n      _this.fetchAtBuffer_ = false;\n      _this.logger_ = logger(\"SegmentLoader[\" + _this.loaderType_ + \"]\");\n      Object.defineProperty(assertThisInitialized(_this), 'state', {\n        get: function get() {\n          return this.state_;\n        },\n        set: function set(newState) {\n          if (newState !== this.state_) {\n            this.logger_(this.state_ + \" -> \" + newState);\n            this.state_ = newState;\n            this.trigger('statechange');\n          }\n        }\n      });\n\n      _this.sourceUpdater_.on('ready', function () {\n        if (_this.hasEnoughInfoToAppend_()) {\n          _this.processCallQueue_();\n        }\n      }); // Only the main loader needs to listen for pending timeline changes, as the main\n      // loader should wait for audio to be ready to change its timeline so that both main\n      // and audio timelines change together. For more details, see the\n      // shouldWaitForTimelineChange function.\n\n\n      if (_this.loaderType_ === 'main') {\n        _this.timelineChangeController_.on('pendingtimelinechange', function () {\n          if (_this.hasEnoughInfoToAppend_()) {\n            _this.processCallQueue_();\n          }\n        });\n      } // The main loader only listens on pending timeline changes, but the audio loader,\n      // since its loads follow main, needs to listen on timeline changes. For more details,\n      // see the shouldWaitForTimelineChange function.\n\n\n      if (_this.loaderType_ === 'audio') {\n        _this.timelineChangeController_.on('timelinechange', function () {\n          if (_this.hasEnoughInfoToLoad_()) {\n            _this.processLoadQueue_();\n          }\n\n          if (_this.hasEnoughInfoToAppend_()) {\n            _this.processCallQueue_();\n          }\n        });\n      }\n\n      return _this;\n    }\n\n    var _proto = SegmentLoader.prototype;\n\n    _proto.createTransmuxer_ = function createTransmuxer_() {\n      return segmentTransmuxer.createTransmuxer({\n        remux: false,\n        alignGopsAtEnd: this.safeAppend_,\n        keepOriginalTimestamps: true,\n        parse708captions: this.parse708captions_,\n        captionServices: this.captionServices_\n      });\n    }\n    /**\n     * reset all of our media stats\n     *\n     * @private\n     */\n    ;\n\n    _proto.resetStats_ = function resetStats_() {\n      this.mediaBytesTransferred = 0;\n      this.mediaRequests = 0;\n      this.mediaRequestsAborted = 0;\n      this.mediaRequestsTimedout = 0;\n      this.mediaRequestsErrored = 0;\n      this.mediaTransferDuration = 0;\n      this.mediaSecondsLoaded = 0;\n      this.mediaAppends = 0;\n    }\n    /**\n     * dispose of the SegmentLoader and reset to the default state\n     */\n    ;\n\n    _proto.dispose = function dispose() {\n      this.trigger('dispose');\n      this.state = 'DISPOSED';\n      this.pause();\n      this.abort_();\n\n      if (this.transmuxer_) {\n        this.transmuxer_.terminate();\n      }\n\n      this.resetStats_();\n\n      if (this.checkBufferTimeout_) {\n        window.clearTimeout(this.checkBufferTimeout_);\n      }\n\n      if (this.syncController_ && this.triggerSyncInfoUpdate_) {\n        this.syncController_.off('syncinfoupdate', this.triggerSyncInfoUpdate_);\n      }\n\n      this.off();\n    };\n\n    _proto.setAudio = function setAudio(enable) {\n      this.audioDisabled_ = !enable;\n\n      if (enable) {\n        this.appendInitSegment_.audio = true;\n      } else {\n        // remove current track audio if it gets disabled\n        this.sourceUpdater_.removeAudio(0, this.duration_());\n      }\n    }\n    /**\n     * abort anything that is currently doing on with the SegmentLoader\n     * and reset to a default state\n     */\n    ;\n\n    _proto.abort = function abort() {\n      if (this.state !== 'WAITING') {\n        if (this.pendingSegment_) {\n          this.pendingSegment_ = null;\n        }\n\n        return;\n      }\n\n      this.abort_(); // We aborted the requests we were waiting on, so reset the loader's state to READY\n      // since we are no longer \"waiting\" on any requests. XHR callback is not always run\n      // when the request is aborted. This will prevent the loader from being stuck in the\n      // WAITING state indefinitely.\n\n      this.state = 'READY'; // don't wait for buffer check timeouts to begin fetching the\n      // next segment\n\n      if (!this.paused()) {\n        this.monitorBuffer_();\n      }\n    }\n    /**\n     * abort all pending xhr requests and null any pending segements\n     *\n     * @private\n     */\n    ;\n\n    _proto.abort_ = function abort_() {\n      if (this.pendingSegment_ && this.pendingSegment_.abortRequests) {\n        this.pendingSegment_.abortRequests();\n      } // clear out the segment being processed\n\n\n      this.pendingSegment_ = null;\n      this.callQueue_ = [];\n      this.loadQueue_ = [];\n      this.metadataQueue_.id3 = [];\n      this.metadataQueue_.caption = [];\n      this.timelineChangeController_.clearPendingTimelineChange(this.loaderType_);\n      this.waitingOnRemove_ = false;\n      window.clearTimeout(this.quotaExceededErrorRetryTimeout_);\n      this.quotaExceededErrorRetryTimeout_ = null;\n    };\n\n    _proto.checkForAbort_ = function checkForAbort_(requestId) {\n      // If the state is APPENDING, then aborts will not modify the state, meaning the first\n      // callback that happens should reset the state to READY so that loading can continue.\n      if (this.state === 'APPENDING' && !this.pendingSegment_) {\n        this.state = 'READY';\n        return true;\n      }\n\n      if (!this.pendingSegment_ || this.pendingSegment_.requestId !== requestId) {\n        return true;\n      }\n\n      return false;\n    }\n    /**\n     * set an error on the segment loader and null out any pending segements\n     *\n     * @param {Error} error the error to set on the SegmentLoader\n     * @return {Error} the error that was set or that is currently set\n     */\n    ;\n\n    _proto.error = function error(_error) {\n      if (typeof _error !== 'undefined') {\n        this.logger_('error occurred:', _error);\n        this.error_ = _error;\n      }\n\n      this.pendingSegment_ = null;\n      return this.error_;\n    };\n\n    _proto.endOfStream = function endOfStream() {\n      this.ended_ = true;\n\n      if (this.transmuxer_) {\n        // need to clear out any cached data to prepare for the new segment\n        segmentTransmuxer.reset(this.transmuxer_);\n      }\n\n      this.gopBuffer_.length = 0;\n      this.pause();\n      this.trigger('ended');\n    }\n    /**\n     * Indicates which time ranges are buffered\n     *\n     * @return {TimeRange}\n     *         TimeRange object representing the current buffered ranges\n     */\n    ;\n\n    _proto.buffered_ = function buffered_() {\n      var trackInfo = this.getMediaInfo_();\n\n      if (!this.sourceUpdater_ || !trackInfo) {\n        return videojs.createTimeRanges();\n      }\n\n      if (this.loaderType_ === 'main') {\n        var hasAudio = trackInfo.hasAudio,\n            hasVideo = trackInfo.hasVideo,\n            isMuxed = trackInfo.isMuxed;\n\n        if (hasVideo && hasAudio && !this.audioDisabled_ && !isMuxed) {\n          return this.sourceUpdater_.buffered();\n        }\n\n        if (hasVideo) {\n          return this.sourceUpdater_.videoBuffered();\n        }\n      } // One case that can be ignored for now is audio only with alt audio,\n      // as we don't yet have proper support for that.\n\n\n      return this.sourceUpdater_.audioBuffered();\n    }\n    /**\n     * Gets and sets init segment for the provided map\n     *\n     * @param {Object} map\n     *        The map object representing the init segment to get or set\n     * @param {boolean=} set\n     *        If true, the init segment for the provided map should be saved\n     * @return {Object}\n     *         map object for desired init segment\n     */\n    ;\n\n    _proto.initSegmentForMap = function initSegmentForMap(map, set) {\n      if (set === void 0) {\n        set = false;\n      }\n\n      if (!map) {\n        return null;\n      }\n\n      var id = initSegmentId(map);\n      var storedMap = this.initSegments_[id];\n\n      if (set && !storedMap && map.bytes) {\n        this.initSegments_[id] = storedMap = {\n          resolvedUri: map.resolvedUri,\n          byterange: map.byterange,\n          bytes: map.bytes,\n          tracks: map.tracks,\n          timescales: map.timescales\n        };\n      }\n\n      return storedMap || map;\n    }\n    /**\n     * Gets and sets key for the provided key\n     *\n     * @param {Object} key\n     *        The key object representing the key to get or set\n     * @param {boolean=} set\n     *        If true, the key for the provided key should be saved\n     * @return {Object}\n     *         Key object for desired key\n     */\n    ;\n\n    _proto.segmentKey = function segmentKey(key, set) {\n      if (set === void 0) {\n        set = false;\n      }\n\n      if (!key) {\n        return null;\n      }\n\n      var id = segmentKeyId(key);\n      var storedKey = this.keyCache_[id]; // TODO: We should use the HTTP Expires header to invalidate our cache per\n      // https://tools.ietf.org/html/draft-pantos-http-live-streaming-23#section-6.2.3\n\n      if (this.cacheEncryptionKeys_ && set && !storedKey && key.bytes) {\n        this.keyCache_[id] = storedKey = {\n          resolvedUri: key.resolvedUri,\n          bytes: key.bytes\n        };\n      }\n\n      var result = {\n        resolvedUri: (storedKey || key).resolvedUri\n      };\n\n      if (storedKey) {\n        result.bytes = storedKey.bytes;\n      }\n\n      return result;\n    }\n    /**\n     * Returns true if all configuration required for loading is present, otherwise false.\n     *\n     * @return {boolean} True if the all configuration is ready for loading\n     * @private\n     */\n    ;\n\n    _proto.couldBeginLoading_ = function couldBeginLoading_() {\n      return this.playlist_ && !this.paused();\n    }\n    /**\n     * load a playlist and start to fill the buffer\n     */\n    ;\n\n    _proto.load = function load() {\n      // un-pause\n      this.monitorBuffer_(); // if we don't have a playlist yet, keep waiting for one to be\n      // specified\n\n      if (!this.playlist_) {\n        return;\n      } // if all the configuration is ready, initialize and begin loading\n\n\n      if (this.state === 'INIT' && this.couldBeginLoading_()) {\n        return this.init_();\n      } // if we're in the middle of processing a segment already, don't\n      // kick off an additional segment request\n\n\n      if (!this.couldBeginLoading_() || this.state !== 'READY' && this.state !== 'INIT') {\n        return;\n      }\n\n      this.state = 'READY';\n    }\n    /**\n     * Once all the starting parameters have been specified, begin\n     * operation. This method should only be invoked from the INIT\n     * state.\n     *\n     * @private\n     */\n    ;\n\n    _proto.init_ = function init_() {\n      this.state = 'READY'; // if this is the audio segment loader, and it hasn't been inited before, then any old\n      // audio data from the muxed content should be removed\n\n      this.resetEverything();\n      return this.monitorBuffer_();\n    }\n    /**\n     * set a playlist on the segment loader\n     *\n     * @param {PlaylistLoader} media the playlist to set on the segment loader\n     */\n    ;\n\n    _proto.playlist = function playlist(newPlaylist, options) {\n      if (options === void 0) {\n        options = {};\n      }\n\n      if (!newPlaylist) {\n        return;\n      }\n\n      var oldPlaylist = this.playlist_;\n      var segmentInfo = this.pendingSegment_;\n      this.playlist_ = newPlaylist;\n      this.xhrOptions_ = options; // when we haven't started playing yet, the start of a live playlist\n      // is always our zero-time so force a sync update each time the playlist\n      // is refreshed from the server\n      //\n      // Use the INIT state to determine if playback has started, as the playlist sync info\n      // should be fixed once requests begin (as sync points are generated based on sync\n      // info), but not before then.\n\n      if (this.state === 'INIT') {\n        newPlaylist.syncInfo = {\n          mediaSequence: newPlaylist.mediaSequence,\n          time: 0\n        }; // Setting the date time mapping means mapping the program date time (if available)\n        // to time 0 on the player's timeline. The playlist's syncInfo serves a similar\n        // purpose, mapping the initial mediaSequence to time zero. Since the syncInfo can\n        // be updated as the playlist is refreshed before the loader starts loading, the\n        // program date time mapping needs to be updated as well.\n        //\n        // This mapping is only done for the main loader because a program date time should\n        // map equivalently between playlists.\n\n        if (this.loaderType_ === 'main') {\n          this.syncController_.setDateTimeMappingForStart(newPlaylist);\n        }\n      }\n\n      var oldId = null;\n\n      if (oldPlaylist) {\n        if (oldPlaylist.id) {\n          oldId = oldPlaylist.id;\n        } else if (oldPlaylist.uri) {\n          oldId = oldPlaylist.uri;\n        }\n      }\n\n      this.logger_(\"playlist update [\" + oldId + \" => \" + (newPlaylist.id || newPlaylist.uri) + \"]\"); // in VOD, this is always a rendition switch (or we updated our syncInfo above)\n      // in LIVE, we always want to update with new playlists (including refreshes)\n\n      this.trigger('syncinfoupdate'); // if we were unpaused but waiting for a playlist, start\n      // buffering now\n\n      if (this.state === 'INIT' && this.couldBeginLoading_()) {\n        return this.init_();\n      }\n\n      if (!oldPlaylist || oldPlaylist.uri !== newPlaylist.uri) {\n        if (this.mediaIndex !== null) {\n          // we must reset/resync the segment loader when we switch renditions and\n          // the segment loader is already synced to the previous rendition\n          // on playlist changes we want it to be possible to fetch\n          // at the buffer for vod but not for live. So we use resetLoader\n          // for live and resyncLoader for vod. We want this because\n          // if a playlist uses independent and non-independent segments/parts the\n          // buffer may not accurately reflect the next segment that we should try\n          // downloading.\n          if (!newPlaylist.endList) {\n            this.resetLoader();\n          } else {\n            this.resyncLoader();\n          }\n        }\n\n        this.currentMediaInfo_ = void 0;\n        this.trigger('playlistupdate'); // the rest of this function depends on `oldPlaylist` being defined\n\n        return;\n      } // we reloaded the same playlist so we are in a live scenario\n      // and we will likely need to adjust the mediaIndex\n\n\n      var mediaSequenceDiff = newPlaylist.mediaSequence - oldPlaylist.mediaSequence;\n      this.logger_(\"live window shift [\" + mediaSequenceDiff + \"]\"); // update the mediaIndex on the SegmentLoader\n      // this is important because we can abort a request and this value must be\n      // equal to the last appended mediaIndex\n\n      if (this.mediaIndex !== null) {\n        this.mediaIndex -= mediaSequenceDiff; // this can happen if we are going to load the first segment, but get a playlist\n        // update during that. mediaIndex would go from 0 to -1 if mediaSequence in the\n        // new playlist was incremented by 1.\n\n        if (this.mediaIndex < 0) {\n          this.mediaIndex = null;\n          this.partIndex = null;\n        } else {\n          var segment = this.playlist_.segments[this.mediaIndex]; // partIndex should remain the same for the same segment\n          // unless parts fell off of the playlist for this segment.\n          // In that case we need to reset partIndex and resync\n\n          if (this.partIndex && (!segment.parts || !segment.parts.length || !segment.parts[this.partIndex])) {\n            var mediaIndex = this.mediaIndex;\n            this.logger_(\"currently processing part (index \" + this.partIndex + \") no longer exists.\");\n            this.resetLoader(); // We want to throw away the partIndex and the data associated with it,\n            // as the part was dropped from our current playlists segment.\n            // The mediaIndex will still be valid so keep that around.\n\n            this.mediaIndex = mediaIndex;\n          }\n        }\n      } // update the mediaIndex on the SegmentInfo object\n      // this is important because we will update this.mediaIndex with this value\n      // in `handleAppendsDone_` after the segment has been successfully appended\n\n\n      if (segmentInfo) {\n        segmentInfo.mediaIndex -= mediaSequenceDiff;\n\n        if (segmentInfo.mediaIndex < 0) {\n          segmentInfo.mediaIndex = null;\n          segmentInfo.partIndex = null;\n        } else {\n          // we need to update the referenced segment so that timing information is\n          // saved for the new playlist's segment, however, if the segment fell off the\n          // playlist, we can leave the old reference and just lose the timing info\n          if (segmentInfo.mediaIndex >= 0) {\n            segmentInfo.segment = newPlaylist.segments[segmentInfo.mediaIndex];\n          }\n\n          if (segmentInfo.partIndex >= 0 && segmentInfo.segment.parts) {\n            segmentInfo.part = segmentInfo.segment.parts[segmentInfo.partIndex];\n          }\n        }\n      }\n\n      this.syncController_.saveExpiredSegmentInfo(oldPlaylist, newPlaylist);\n    }\n    /**\n     * Prevent the loader from fetching additional segments. If there\n     * is a segment request outstanding, it will finish processing\n     * before the loader halts. A segment loader can be unpaused by\n     * calling load().\n     */\n    ;\n\n    _proto.pause = function pause() {\n      if (this.checkBufferTimeout_) {\n        window.clearTimeout(this.checkBufferTimeout_);\n        this.checkBufferTimeout_ = null;\n      }\n    }\n    /**\n     * Returns whether the segment loader is fetching additional\n     * segments when given the opportunity. This property can be\n     * modified through calls to pause() and load().\n     */\n    ;\n\n    _proto.paused = function paused() {\n      return this.checkBufferTimeout_ === null;\n    }\n    /**\n     * Delete all the buffered data and reset the SegmentLoader\n     *\n     * @param {Function} [done] an optional callback to be executed when the remove\n     * operation is complete\n     */\n    ;\n\n    _proto.resetEverything = function resetEverything(done) {\n      this.ended_ = false;\n      this.appendInitSegment_ = {\n        audio: true,\n        video: true\n      };\n      this.resetLoader(); // remove from 0, the earliest point, to Infinity, to signify removal of everything.\n      // VTT Segment Loader doesn't need to do anything but in the regular SegmentLoader,\n      // we then clamp the value to duration if necessary.\n\n      this.remove(0, Infinity, done); // clears fmp4 captions\n\n      if (this.transmuxer_) {\n        this.transmuxer_.postMessage({\n          action: 'clearAllMp4Captions'\n        }); // reset the cache in the transmuxer\n\n        this.transmuxer_.postMessage({\n          action: 'reset'\n        });\n      }\n    }\n    /**\n     * Force the SegmentLoader to resync and start loading around the currentTime instead\n     * of starting at the end of the buffer\n     *\n     * Useful for fast quality changes\n     */\n    ;\n\n    _proto.resetLoader = function resetLoader() {\n      this.fetchAtBuffer_ = false;\n      this.resyncLoader();\n    }\n    /**\n     * Force the SegmentLoader to restart synchronization and make a conservative guess\n     * before returning to the simple walk-forward method\n     */\n    ;\n\n    _proto.resyncLoader = function resyncLoader() {\n      if (this.transmuxer_) {\n        // need to clear out any cached data to prepare for the new segment\n        segmentTransmuxer.reset(this.transmuxer_);\n      }\n\n      this.mediaIndex = null;\n      this.partIndex = null;\n      this.syncPoint_ = null;\n      this.isPendingTimestampOffset_ = false;\n      this.callQueue_ = [];\n      this.loadQueue_ = [];\n      this.metadataQueue_.id3 = [];\n      this.metadataQueue_.caption = [];\n      this.abort();\n\n      if (this.transmuxer_) {\n        this.transmuxer_.postMessage({\n          action: 'clearParsedMp4Captions'\n        });\n      }\n    }\n    /**\n     * Remove any data in the source buffer between start and end times\n     *\n     * @param {number} start - the start time of the region to remove from the buffer\n     * @param {number} end - the end time of the region to remove from the buffer\n     * @param {Function} [done] - an optional callback to be executed when the remove\n     * @param {boolean} force - force all remove operations to happen\n     * operation is complete\n     */\n    ;\n\n    _proto.remove = function remove(start, end, done, force) {\n      if (done === void 0) {\n        done = function done() {};\n      }\n\n      if (force === void 0) {\n        force = false;\n      } // clamp end to duration if we need to remove everything.\n      // This is due to a browser bug that causes issues if we remove to Infinity.\n      // videojs/videojs-contrib-hls#1225\n\n\n      if (end === Infinity) {\n        end = this.duration_();\n      } // skip removes that would throw an error\n      // commonly happens during a rendition switch at the start of a video\n      // from start 0 to end 0\n\n\n      if (end <= start) {\n        this.logger_('skipping remove because end ${end} is <= start ${start}');\n        return;\n      }\n\n      if (!this.sourceUpdater_ || !this.getMediaInfo_()) {\n        this.logger_('skipping remove because no source updater or starting media info'); // nothing to remove if we haven't processed any media\n\n        return;\n      } // set it to one to complete this function's removes\n\n\n      var removesRemaining = 1;\n\n      var removeFinished = function removeFinished() {\n        removesRemaining--;\n\n        if (removesRemaining === 0) {\n          done();\n        }\n      };\n\n      if (force || !this.audioDisabled_) {\n        removesRemaining++;\n        this.sourceUpdater_.removeAudio(start, end, removeFinished);\n      } // While it would be better to only remove video if the main loader has video, this\n      // should be safe with audio only as removeVideo will call back even if there's no\n      // video buffer.\n      //\n      // In theory we can check to see if there's video before calling the remove, but in\n      // the event that we're switching between renditions and from video to audio only\n      // (when we add support for that), we may need to clear the video contents despite\n      // what the new media will contain.\n\n\n      if (force || this.loaderType_ === 'main') {\n        this.gopBuffer_ = removeGopBuffer(this.gopBuffer_, start, end, this.timeMapping_);\n        removesRemaining++;\n        this.sourceUpdater_.removeVideo(start, end, removeFinished);\n      } // remove any captions and ID3 tags\n\n\n      for (var track in this.inbandTextTracks_) {\n        removeCuesFromTrack(start, end, this.inbandTextTracks_[track]);\n      }\n\n      removeCuesFromTrack(start, end, this.segmentMetadataTrack_); // finished this function's removes\n\n      removeFinished();\n    }\n    /**\n     * (re-)schedule monitorBufferTick_ to run as soon as possible\n     *\n     * @private\n     */\n    ;\n\n    _proto.monitorBuffer_ = function monitorBuffer_() {\n      if (this.checkBufferTimeout_) {\n        window.clearTimeout(this.checkBufferTimeout_);\n      }\n\n      this.checkBufferTimeout_ = window.setTimeout(this.monitorBufferTick_.bind(this), 1);\n    }\n    /**\n     * As long as the SegmentLoader is in the READY state, periodically\n     * invoke fillBuffer_().\n     *\n     * @private\n     */\n    ;\n\n    _proto.monitorBufferTick_ = function monitorBufferTick_() {\n      if (this.state === 'READY') {\n        this.fillBuffer_();\n      }\n\n      if (this.checkBufferTimeout_) {\n        window.clearTimeout(this.checkBufferTimeout_);\n      }\n\n      this.checkBufferTimeout_ = window.setTimeout(this.monitorBufferTick_.bind(this), CHECK_BUFFER_DELAY);\n    }\n    /**\n     * fill the buffer with segements unless the sourceBuffers are\n     * currently updating\n     *\n     * Note: this function should only ever be called by monitorBuffer_\n     * and never directly\n     *\n     * @private\n     */\n    ;\n\n    _proto.fillBuffer_ = function fillBuffer_() {\n      // TODO since the source buffer maintains a queue, and we shouldn't call this function\n      // except when we're ready for the next segment, this check can most likely be removed\n      if (this.sourceUpdater_.updating()) {\n        return;\n      } // see if we need to begin loading immediately\n\n\n      var segmentInfo = this.chooseNextRequest_();\n\n      if (!segmentInfo) {\n        return;\n      }\n\n      if (typeof segmentInfo.timestampOffset === 'number') {\n        this.isPendingTimestampOffset_ = false;\n        this.timelineChangeController_.pendingTimelineChange({\n          type: this.loaderType_,\n          from: this.currentTimeline_,\n          to: segmentInfo.timeline\n        });\n      }\n\n      this.loadSegment_(segmentInfo);\n    }\n    /**\n     * Determines if we should call endOfStream on the media source based\n     * on the state of the buffer or if appened segment was the final\n     * segment in the playlist.\n     *\n     * @param {number} [mediaIndex] the media index of segment we last appended\n     * @param {Object} [playlist] a media playlist object\n     * @return {boolean} do we need to call endOfStream on the MediaSource\n     */\n    ;\n\n    _proto.isEndOfStream_ = function isEndOfStream_(mediaIndex, playlist, partIndex) {\n      if (mediaIndex === void 0) {\n        mediaIndex = this.mediaIndex;\n      }\n\n      if (playlist === void 0) {\n        playlist = this.playlist_;\n      }\n\n      if (partIndex === void 0) {\n        partIndex = this.partIndex;\n      }\n\n      if (!playlist || !this.mediaSource_) {\n        return false;\n      }\n\n      var segment = typeof mediaIndex === 'number' && playlist.segments[mediaIndex]; // mediaIndex is zero based but length is 1 based\n\n      var appendedLastSegment = mediaIndex + 1 === playlist.segments.length; // true if there are no parts, or this is the last part.\n\n      var appendedLastPart = !segment || !segment.parts || partIndex + 1 === segment.parts.length; // if we've buffered to the end of the video, we need to call endOfStream\n      // so that MediaSources can trigger the `ended` event when it runs out of\n      // buffered data instead of waiting for me\n\n      return playlist.endList && this.mediaSource_.readyState === 'open' && appendedLastSegment && appendedLastPart;\n    }\n    /**\n     * Determines what request should be made given current segment loader state.\n     *\n     * @return {Object} a request object that describes the segment/part to load\n     */\n    ;\n\n    _proto.chooseNextRequest_ = function chooseNextRequest_() {\n      var buffered = this.buffered_();\n      var bufferedEnd = lastBufferedEnd(buffered) || 0;\n      var bufferedTime = timeAheadOf(buffered, this.currentTime_());\n      var preloaded = !this.hasPlayed_() && bufferedTime >= 1;\n      var haveEnoughBuffer = bufferedTime >= this.goalBufferLength_();\n      var segments = this.playlist_.segments; // return no segment if:\n      // 1. we don't have segments\n      // 2. The video has not yet played and we already downloaded a segment\n      // 3. we already have enough buffered time\n\n      if (!segments.length || preloaded || haveEnoughBuffer) {\n        return null;\n      }\n\n      this.syncPoint_ = this.syncPoint_ || this.syncController_.getSyncPoint(this.playlist_, this.duration_(), this.currentTimeline_, this.currentTime_());\n      var next = {\n        partIndex: null,\n        mediaIndex: null,\n        startOfSegment: null,\n        playlist: this.playlist_,\n        isSyncRequest: Boolean(!this.syncPoint_)\n      };\n\n      if (next.isSyncRequest) {\n        next.mediaIndex = getSyncSegmentCandidate(this.currentTimeline_, segments, bufferedEnd);\n      } else if (this.mediaIndex !== null) {\n        var segment = segments[this.mediaIndex];\n        var partIndex = typeof this.partIndex === 'number' ? this.partIndex : -1;\n        next.startOfSegment = segment.end ? segment.end : bufferedEnd;\n\n        if (segment.parts && segment.parts[partIndex + 1]) {\n          next.mediaIndex = this.mediaIndex;\n          next.partIndex = partIndex + 1;\n        } else {\n          next.mediaIndex = this.mediaIndex + 1;\n        }\n      } else {\n        // Find the segment containing the end of the buffer or current time.\n        var _Playlist$getMediaInf = Playlist.getMediaInfoForTime({\n          experimentalExactManifestTimings: this.experimentalExactManifestTimings,\n          playlist: this.playlist_,\n          currentTime: this.fetchAtBuffer_ ? bufferedEnd : this.currentTime_(),\n          startingPartIndex: this.syncPoint_.partIndex,\n          startingSegmentIndex: this.syncPoint_.segmentIndex,\n          startTime: this.syncPoint_.time\n        }),\n            segmentIndex = _Playlist$getMediaInf.segmentIndex,\n            startTime = _Playlist$getMediaInf.startTime,\n            _partIndex = _Playlist$getMediaInf.partIndex;\n\n        next.getMediaInfoForTime = this.fetchAtBuffer_ ? \"bufferedEnd \" + bufferedEnd : \"currentTime \" + this.currentTime_();\n        next.mediaIndex = segmentIndex;\n        next.startOfSegment = startTime;\n        next.partIndex = _partIndex;\n      }\n\n      var nextSegment = segments[next.mediaIndex];\n      var nextPart = nextSegment && typeof next.partIndex === 'number' && nextSegment.parts && nextSegment.parts[next.partIndex]; // if the next segment index is invalid or\n      // the next partIndex is invalid do not choose a next segment.\n\n      if (!nextSegment || typeof next.partIndex === 'number' && !nextPart) {\n        return null;\n      } // if the next segment has parts, and we don't have a partIndex.\n      // Set partIndex to 0\n\n\n      if (typeof next.partIndex !== 'number' && nextSegment.parts) {\n        next.partIndex = 0;\n        nextPart = nextSegment.parts[0];\n      } // if we have no buffered data then we need to make sure\n      // that the next part we append is \"independent\" if possible.\n      // So we check if the previous part is independent, and request\n      // it if it is.\n\n\n      if (!bufferedTime && nextPart && !nextPart.independent) {\n        if (next.partIndex === 0) {\n          var lastSegment = segments[next.mediaIndex - 1];\n          var lastSegmentLastPart = lastSegment.parts && lastSegment.parts.length && lastSegment.parts[lastSegment.parts.length - 1];\n\n          if (lastSegmentLastPart && lastSegmentLastPart.independent) {\n            next.mediaIndex -= 1;\n            next.partIndex = lastSegment.parts.length - 1;\n            next.independent = 'previous segment';\n          }\n        } else if (nextSegment.parts[next.partIndex - 1].independent) {\n          next.partIndex -= 1;\n          next.independent = 'previous part';\n        }\n      }\n\n      var ended = this.mediaSource_ && this.mediaSource_.readyState === 'ended'; // do not choose a next segment if all of the following:\n      // 1. this is the last segment in the playlist\n      // 2. end of stream has been called on the media source already\n      // 3. the player is not seeking\n\n      if (next.mediaIndex >= segments.length - 1 && ended && !this.seeking_()) {\n        return null;\n      }\n\n      return this.generateSegmentInfo_(next);\n    };\n\n    _proto.generateSegmentInfo_ = function generateSegmentInfo_(options) {\n      var independent = options.independent,\n          playlist = options.playlist,\n          mediaIndex = options.mediaIndex,\n          startOfSegment = options.startOfSegment,\n          isSyncRequest = options.isSyncRequest,\n          partIndex = options.partIndex,\n          forceTimestampOffset = options.forceTimestampOffset,\n          getMediaInfoForTime = options.getMediaInfoForTime;\n      var segment = playlist.segments[mediaIndex];\n      var part = typeof partIndex === 'number' && segment.parts[partIndex];\n      var segmentInfo = {\n        requestId: 'segment-loader-' + Math.random(),\n        // resolve the segment URL relative to the playlist\n        uri: part && part.resolvedUri || segment.resolvedUri,\n        // the segment's mediaIndex at the time it was requested\n        mediaIndex: mediaIndex,\n        partIndex: part ? partIndex : null,\n        // whether or not to update the SegmentLoader's state with this\n        // segment's mediaIndex\n        isSyncRequest: isSyncRequest,\n        startOfSegment: startOfSegment,\n        // the segment's playlist\n        playlist: playlist,\n        // unencrypted bytes of the segment\n        bytes: null,\n        // when a key is defined for this segment, the encrypted bytes\n        encryptedBytes: null,\n        // The target timestampOffset for this segment when we append it\n        // to the source buffer\n        timestampOffset: null,\n        // The timeline that the segment is in\n        timeline: segment.timeline,\n        // The expected duration of the segment in seconds\n        duration: part && part.duration || segment.duration,\n        // retain the segment in case the playlist updates while doing an async process\n        segment: segment,\n        part: part,\n        byteLength: 0,\n        transmuxer: this.transmuxer_,\n        // type of getMediaInfoForTime that was used to get this segment\n        getMediaInfoForTime: getMediaInfoForTime,\n        independent: independent\n      };\n      var overrideCheck = typeof forceTimestampOffset !== 'undefined' ? forceTimestampOffset : this.isPendingTimestampOffset_;\n      segmentInfo.timestampOffset = this.timestampOffsetForSegment_({\n        segmentTimeline: segment.timeline,\n        currentTimeline: this.currentTimeline_,\n        startOfSegment: startOfSegment,\n        buffered: this.buffered_(),\n        overrideCheck: overrideCheck\n      });\n      var audioBufferedEnd = lastBufferedEnd(this.sourceUpdater_.audioBuffered());\n\n      if (typeof audioBufferedEnd === 'number') {\n        // since the transmuxer is using the actual timing values, but the buffer is\n        // adjusted by the timestamp offset, we must adjust the value here\n        segmentInfo.audioAppendStart = audioBufferedEnd - this.sourceUpdater_.audioTimestampOffset();\n      }\n\n      if (this.sourceUpdater_.videoBuffered().length) {\n        segmentInfo.gopsToAlignWith = gopsSafeToAlignWith(this.gopBuffer_, // since the transmuxer is using the actual timing values, but the time is\n        // adjusted by the timestmap offset, we must adjust the value here\n        this.currentTime_() - this.sourceUpdater_.videoTimestampOffset(), this.timeMapping_);\n      }\n\n      return segmentInfo;\n    } // get the timestampoffset for a segment,\n    // added so that vtt segment loader can override and prevent\n    // adding timestamp offsets.\n    ;\n\n    _proto.timestampOffsetForSegment_ = function timestampOffsetForSegment_(options) {\n      return timestampOffsetForSegment(options);\n    }\n    /**\n     * Determines if the network has enough bandwidth to complete the current segment\n     * request in a timely manner. If not, the request will be aborted early and bandwidth\n     * updated to trigger a playlist switch.\n     *\n     * @param {Object} stats\n     *        Object containing stats about the request timing and size\n     * @private\n     */\n    ;\n\n    _proto.earlyAbortWhenNeeded_ = function earlyAbortWhenNeeded_(stats) {\n      if (this.vhs_.tech_.paused() || // Don't abort if the current playlist is on the lowestEnabledRendition\n      // TODO: Replace using timeout with a boolean indicating whether this playlist is\n      //       the lowestEnabledRendition.\n      !this.xhrOptions_.timeout || // Don't abort if we have no bandwidth information to estimate segment sizes\n      !this.playlist_.attributes.BANDWIDTH) {\n        return;\n      } // Wait at least 1 second since the first byte of data has been received before\n      // using the calculated bandwidth from the progress event to allow the bitrate\n      // to stabilize\n\n\n      if (Date.now() - (stats.firstBytesReceivedAt || Date.now()) < 1000) {\n        return;\n      }\n\n      var currentTime = this.currentTime_();\n      var measuredBandwidth = stats.bandwidth;\n      var segmentDuration = this.pendingSegment_.duration;\n      var requestTimeRemaining = Playlist.estimateSegmentRequestTime(segmentDuration, measuredBandwidth, this.playlist_, stats.bytesReceived); // Subtract 1 from the timeUntilRebuffer so we still consider an early abort\n      // if we are only left with less than 1 second when the request completes.\n      // A negative timeUntilRebuffering indicates we are already rebuffering\n\n      var timeUntilRebuffer$1 = timeUntilRebuffer(this.buffered_(), currentTime, this.vhs_.tech_.playbackRate()) - 1; // Only consider aborting early if the estimated time to finish the download\n      // is larger than the estimated time until the player runs out of forward buffer\n\n      if (requestTimeRemaining <= timeUntilRebuffer$1) {\n        return;\n      }\n\n      var switchCandidate = minRebufferMaxBandwidthSelector({\n        master: this.vhs_.playlists.master,\n        currentTime: currentTime,\n        bandwidth: measuredBandwidth,\n        duration: this.duration_(),\n        segmentDuration: segmentDuration,\n        timeUntilRebuffer: timeUntilRebuffer$1,\n        currentTimeline: this.currentTimeline_,\n        syncController: this.syncController_\n      });\n\n      if (!switchCandidate) {\n        return;\n      }\n\n      var rebufferingImpact = requestTimeRemaining - timeUntilRebuffer$1;\n      var timeSavedBySwitching = rebufferingImpact - switchCandidate.rebufferingImpact;\n      var minimumTimeSaving = 0.5; // If we are already rebuffering, increase the amount of variance we add to the\n      // potential round trip time of the new request so that we are not too aggressive\n      // with switching to a playlist that might save us a fraction of a second.\n\n      if (timeUntilRebuffer$1 <= TIME_FUDGE_FACTOR) {\n        minimumTimeSaving = 1;\n      }\n\n      if (!switchCandidate.playlist || switchCandidate.playlist.uri === this.playlist_.uri || timeSavedBySwitching < minimumTimeSaving) {\n        return;\n      } // set the bandwidth to that of the desired playlist being sure to scale by\n      // BANDWIDTH_VARIANCE and add one so the playlist selector does not exclude it\n      // don't trigger a bandwidthupdate as the bandwidth is artifial\n\n\n      this.bandwidth = switchCandidate.playlist.attributes.BANDWIDTH * Config.BANDWIDTH_VARIANCE + 1;\n      this.trigger('earlyabort');\n    };\n\n    _proto.handleAbort_ = function handleAbort_(segmentInfo) {\n      this.logger_(\"Aborting \" + segmentInfoString(segmentInfo));\n      this.mediaRequestsAborted += 1;\n    }\n    /**\n     * XHR `progress` event handler\n     *\n     * @param {Event}\n     *        The XHR `progress` event\n     * @param {Object} simpleSegment\n     *        A simplified segment object copy\n     * @private\n     */\n    ;\n\n    _proto.handleProgress_ = function handleProgress_(event, simpleSegment) {\n      this.earlyAbortWhenNeeded_(simpleSegment.stats);\n\n      if (this.checkForAbort_(simpleSegment.requestId)) {\n        return;\n      }\n\n      this.trigger('progress');\n    };\n\n    _proto.handleTrackInfo_ = function handleTrackInfo_(simpleSegment, trackInfo) {\n      this.earlyAbortWhenNeeded_(simpleSegment.stats);\n\n      if (this.checkForAbort_(simpleSegment.requestId)) {\n        return;\n      }\n\n      if (this.checkForIllegalMediaSwitch(trackInfo)) {\n        return;\n      }\n\n      trackInfo = trackInfo || {}; // When we have track info, determine what media types this loader is dealing with.\n      // Guard against cases where we're not getting track info at all until we are\n      // certain that all streams will provide it.\n\n      if (!shallowEqual(this.currentMediaInfo_, trackInfo)) {\n        this.appendInitSegment_ = {\n          audio: true,\n          video: true\n        };\n        this.startingMediaInfo_ = trackInfo;\n        this.currentMediaInfo_ = trackInfo;\n        this.logger_('trackinfo update', trackInfo);\n        this.trigger('trackinfo');\n      } // trackinfo may cause an abort if the trackinfo\n      // causes a codec change to an unsupported codec.\n\n\n      if (this.checkForAbort_(simpleSegment.requestId)) {\n        return;\n      } // set trackinfo on the pending segment so that\n      // it can append.\n\n\n      this.pendingSegment_.trackInfo = trackInfo; // check if any calls were waiting on the track info\n\n      if (this.hasEnoughInfoToAppend_()) {\n        this.processCallQueue_();\n      }\n    };\n\n    _proto.handleTimingInfo_ = function handleTimingInfo_(simpleSegment, mediaType, timeType, time) {\n      this.earlyAbortWhenNeeded_(simpleSegment.stats);\n\n      if (this.checkForAbort_(simpleSegment.requestId)) {\n        return;\n      }\n\n      var segmentInfo = this.pendingSegment_;\n      var timingInfoProperty = timingInfoPropertyForMedia(mediaType);\n      segmentInfo[timingInfoProperty] = segmentInfo[timingInfoProperty] || {};\n      segmentInfo[timingInfoProperty][timeType] = time;\n      this.logger_(\"timinginfo: \" + mediaType + \" - \" + timeType + \" - \" + time); // check if any calls were waiting on the timing info\n\n      if (this.hasEnoughInfoToAppend_()) {\n        this.processCallQueue_();\n      }\n    };\n\n    _proto.handleCaptions_ = function handleCaptions_(simpleSegment, captionData) {\n      var _this2 = this;\n\n      this.earlyAbortWhenNeeded_(simpleSegment.stats);\n\n      if (this.checkForAbort_(simpleSegment.requestId)) {\n        return;\n      } // This could only happen with fmp4 segments, but\n      // should still not happen in general\n\n\n      if (captionData.length === 0) {\n        this.logger_('SegmentLoader received no captions from a caption event');\n        return;\n      }\n\n      var segmentInfo = this.pendingSegment_; // Wait until we have some video data so that caption timing\n      // can be adjusted by the timestamp offset\n\n      if (!segmentInfo.hasAppendedData_) {\n        this.metadataQueue_.caption.push(this.handleCaptions_.bind(this, simpleSegment, captionData));\n        return;\n      }\n\n      var timestampOffset = this.sourceUpdater_.videoTimestampOffset() === null ? this.sourceUpdater_.audioTimestampOffset() : this.sourceUpdater_.videoTimestampOffset();\n      var captionTracks = {}; // get total start/end and captions for each track/stream\n\n      captionData.forEach(function (caption) {\n        // caption.stream is actually a track name...\n        // set to the existing values in tracks or default values\n        captionTracks[caption.stream] = captionTracks[caption.stream] || {\n          // Infinity, as any other value will be less than this\n          startTime: Infinity,\n          captions: [],\n          // 0 as an other value will be more than this\n          endTime: 0\n        };\n        var captionTrack = captionTracks[caption.stream];\n        captionTrack.startTime = Math.min(captionTrack.startTime, caption.startTime + timestampOffset);\n        captionTrack.endTime = Math.max(captionTrack.endTime, caption.endTime + timestampOffset);\n        captionTrack.captions.push(caption);\n      });\n      Object.keys(captionTracks).forEach(function (trackName) {\n        var _captionTracks$trackN = captionTracks[trackName],\n            startTime = _captionTracks$trackN.startTime,\n            endTime = _captionTracks$trackN.endTime,\n            captions = _captionTracks$trackN.captions;\n        var inbandTextTracks = _this2.inbandTextTracks_;\n\n        _this2.logger_(\"adding cues from \" + startTime + \" -> \" + endTime + \" for \" + trackName);\n\n        createCaptionsTrackIfNotExists(inbandTextTracks, _this2.vhs_.tech_, trackName); // clear out any cues that start and end at the same time period for the same track.\n        // We do this because a rendition change that also changes the timescale for captions\n        // will result in captions being re-parsed for certain segments. If we add them again\n        // without clearing we will have two of the same captions visible.\n\n        removeCuesFromTrack(startTime, endTime, inbandTextTracks[trackName]);\n        addCaptionData({\n          captionArray: captions,\n          inbandTextTracks: inbandTextTracks,\n          timestampOffset: timestampOffset\n        });\n      }); // Reset stored captions since we added parsed\n      // captions to a text track at this point\n\n      if (this.transmuxer_) {\n        this.transmuxer_.postMessage({\n          action: 'clearParsedMp4Captions'\n        });\n      }\n    };\n\n    _proto.handleId3_ = function handleId3_(simpleSegment, id3Frames, dispatchType) {\n      this.earlyAbortWhenNeeded_(simpleSegment.stats);\n\n      if (this.checkForAbort_(simpleSegment.requestId)) {\n        return;\n      }\n\n      var segmentInfo = this.pendingSegment_; // we need to have appended data in order for the timestamp offset to be set\n\n      if (!segmentInfo.hasAppendedData_) {\n        this.metadataQueue_.id3.push(this.handleId3_.bind(this, simpleSegment, id3Frames, dispatchType));\n        return;\n      }\n\n      var timestampOffset = this.sourceUpdater_.videoTimestampOffset() === null ? this.sourceUpdater_.audioTimestampOffset() : this.sourceUpdater_.videoTimestampOffset(); // There's potentially an issue where we could double add metadata if there's a muxed\n      // audio/video source with a metadata track, and an alt audio with a metadata track.\n      // However, this probably won't happen, and if it does it can be handled then.\n\n      createMetadataTrackIfNotExists(this.inbandTextTracks_, dispatchType, this.vhs_.tech_);\n      addMetadata({\n        inbandTextTracks: this.inbandTextTracks_,\n        metadataArray: id3Frames,\n        timestampOffset: timestampOffset,\n        videoDuration: this.duration_()\n      });\n    };\n\n    _proto.processMetadataQueue_ = function processMetadataQueue_() {\n      this.metadataQueue_.id3.forEach(function (fn) {\n        return fn();\n      });\n      this.metadataQueue_.caption.forEach(function (fn) {\n        return fn();\n      });\n      this.metadataQueue_.id3 = [];\n      this.metadataQueue_.caption = [];\n    };\n\n    _proto.processCallQueue_ = function processCallQueue_() {\n      var callQueue = this.callQueue_; // Clear out the queue before the queued functions are run, since some of the\n      // functions may check the length of the load queue and default to pushing themselves\n      // back onto the queue.\n\n      this.callQueue_ = [];\n      callQueue.forEach(function (fun) {\n        return fun();\n      });\n    };\n\n    _proto.processLoadQueue_ = function processLoadQueue_() {\n      var loadQueue = this.loadQueue_; // Clear out the queue before the queued functions are run, since some of the\n      // functions may check the length of the load queue and default to pushing themselves\n      // back onto the queue.\n\n      this.loadQueue_ = [];\n      loadQueue.forEach(function (fun) {\n        return fun();\n      });\n    }\n    /**\n     * Determines whether the loader has enough info to load the next segment.\n     *\n     * @return {boolean}\n     *         Whether or not the loader has enough info to load the next segment\n     */\n    ;\n\n    _proto.hasEnoughInfoToLoad_ = function hasEnoughInfoToLoad_() {\n      // Since primary timing goes by video, only the audio loader potentially needs to wait\n      // to load.\n      if (this.loaderType_ !== 'audio') {\n        return true;\n      }\n\n      var segmentInfo = this.pendingSegment_; // A fill buffer must have already run to establish a pending segment before there's\n      // enough info to load.\n\n      if (!segmentInfo) {\n        return false;\n      } // The first segment can and should be loaded immediately so that source buffers are\n      // created together (before appending). Source buffer creation uses the presence of\n      // audio and video data to determine whether to create audio/video source buffers, and\n      // uses processed (transmuxed or parsed) media to determine the types required.\n\n\n      if (!this.getCurrentMediaInfo_()) {\n        return true;\n      }\n\n      if ( // Technically, instead of waiting to load a segment on timeline changes, a segment\n      // can be requested and downloaded and only wait before it is transmuxed or parsed.\n      // But in practice, there are a few reasons why it is better to wait until a loader\n      // is ready to append that segment before requesting and downloading:\n      //\n      // 1. Because audio and main loaders cross discontinuities together, if this loader\n      //    is waiting for the other to catch up, then instead of requesting another\n      //    segment and using up more bandwidth, by not yet loading, more bandwidth is\n      //    allotted to the loader currently behind.\n      // 2. media-segment-request doesn't have to have logic to consider whether a segment\n      // is ready to be processed or not, isolating the queueing behavior to the loader.\n      // 3. The audio loader bases some of its segment properties on timing information\n      //    provided by the main loader, meaning that, if the logic for waiting on\n      //    processing was in media-segment-request, then it would also need to know how\n      //    to re-generate the segment information after the main loader caught up.\n      shouldWaitForTimelineChange({\n        timelineChangeController: this.timelineChangeController_,\n        currentTimeline: this.currentTimeline_,\n        segmentTimeline: segmentInfo.timeline,\n        loaderType: this.loaderType_,\n        audioDisabled: this.audioDisabled_\n      })) {\n        return false;\n      }\n\n      return true;\n    };\n\n    _proto.getCurrentMediaInfo_ = function getCurrentMediaInfo_(segmentInfo) {\n      if (segmentInfo === void 0) {\n        segmentInfo = this.pendingSegment_;\n      }\n\n      return segmentInfo && segmentInfo.trackInfo || this.currentMediaInfo_;\n    };\n\n    _proto.getMediaInfo_ = function getMediaInfo_(segmentInfo) {\n      if (segmentInfo === void 0) {\n        segmentInfo = this.pendingSegment_;\n      }\n\n      return this.getCurrentMediaInfo_(segmentInfo) || this.startingMediaInfo_;\n    };\n\n    _proto.hasEnoughInfoToAppend_ = function hasEnoughInfoToAppend_() {\n      if (!this.sourceUpdater_.ready()) {\n        return false;\n      } // If content needs to be removed or the loader is waiting on an append reattempt,\n      // then no additional content should be appended until the prior append is resolved.\n\n\n      if (this.waitingOnRemove_ || this.quotaExceededErrorRetryTimeout_) {\n        return false;\n      }\n\n      var segmentInfo = this.pendingSegment_;\n      var trackInfo = this.getCurrentMediaInfo_(); // no segment to append any data for or\n      // we do not have information on this specific\n      // segment yet\n\n      if (!segmentInfo || !trackInfo) {\n        return false;\n      }\n\n      var hasAudio = trackInfo.hasAudio,\n          hasVideo = trackInfo.hasVideo,\n          isMuxed = trackInfo.isMuxed;\n\n      if (hasVideo && !segmentInfo.videoTimingInfo) {\n        return false;\n      } // muxed content only relies on video timing information for now.\n\n\n      if (hasAudio && !this.audioDisabled_ && !isMuxed && !segmentInfo.audioTimingInfo) {\n        return false;\n      }\n\n      if (shouldWaitForTimelineChange({\n        timelineChangeController: this.timelineChangeController_,\n        currentTimeline: this.currentTimeline_,\n        segmentTimeline: segmentInfo.timeline,\n        loaderType: this.loaderType_,\n        audioDisabled: this.audioDisabled_\n      })) {\n        return false;\n      }\n\n      return true;\n    };\n\n    _proto.handleData_ = function handleData_(simpleSegment, result) {\n      this.earlyAbortWhenNeeded_(simpleSegment.stats);\n\n      if (this.checkForAbort_(simpleSegment.requestId)) {\n        return;\n      } // If there's anything in the call queue, then this data came later and should be\n      // executed after the calls currently queued.\n\n\n      if (this.callQueue_.length || !this.hasEnoughInfoToAppend_()) {\n        this.callQueue_.push(this.handleData_.bind(this, simpleSegment, result));\n        return;\n      }\n\n      var segmentInfo = this.pendingSegment_; // update the time mapping so we can translate from display time to media time\n\n      this.setTimeMapping_(segmentInfo.timeline); // for tracking overall stats\n\n      this.updateMediaSecondsLoaded_(segmentInfo.part || segmentInfo.segment); // Note that the state isn't changed from loading to appending. This is because abort\n      // logic may change behavior depending on the state, and changing state too early may\n      // inflate our estimates of bandwidth. In the future this should be re-examined to\n      // note more granular states.\n      // don't process and append data if the mediaSource is closed\n\n      if (this.mediaSource_.readyState === 'closed') {\n        return;\n      } // if this request included an initialization segment, save that data\n      // to the initSegment cache\n\n\n      if (simpleSegment.map) {\n        simpleSegment.map = this.initSegmentForMap(simpleSegment.map, true); // move over init segment properties to media request\n\n        segmentInfo.segment.map = simpleSegment.map;\n      } // if this request included a segment key, save that data in the cache\n\n\n      if (simpleSegment.key) {\n        this.segmentKey(simpleSegment.key, true);\n      }\n\n      segmentInfo.isFmp4 = simpleSegment.isFmp4;\n      segmentInfo.timingInfo = segmentInfo.timingInfo || {};\n\n      if (segmentInfo.isFmp4) {\n        this.trigger('fmp4');\n        segmentInfo.timingInfo.start = segmentInfo[timingInfoPropertyForMedia(result.type)].start;\n      } else {\n        var trackInfo = this.getCurrentMediaInfo_();\n        var useVideoTimingInfo = this.loaderType_ === 'main' && trackInfo && trackInfo.hasVideo;\n        var firstVideoFrameTimeForData;\n\n        if (useVideoTimingInfo) {\n          firstVideoFrameTimeForData = segmentInfo.videoTimingInfo.start;\n        } // Segment loader knows more about segment timing than the transmuxer (in certain\n        // aspects), so make any changes required for a more accurate start time.\n        // Don't set the end time yet, as the segment may not be finished processing.\n\n\n        segmentInfo.timingInfo.start = this.trueSegmentStart_({\n          currentStart: segmentInfo.timingInfo.start,\n          playlist: segmentInfo.playlist,\n          mediaIndex: segmentInfo.mediaIndex,\n          currentVideoTimestampOffset: this.sourceUpdater_.videoTimestampOffset(),\n          useVideoTimingInfo: useVideoTimingInfo,\n          firstVideoFrameTimeForData: firstVideoFrameTimeForData,\n          videoTimingInfo: segmentInfo.videoTimingInfo,\n          audioTimingInfo: segmentInfo.audioTimingInfo\n        });\n      } // Init segments for audio and video only need to be appended in certain cases. Now\n      // that data is about to be appended, we can check the final cases to determine\n      // whether we should append an init segment.\n\n\n      this.updateAppendInitSegmentStatus(segmentInfo, result.type); // Timestamp offset should be updated once we get new data and have its timing info,\n      // as we use the start of the segment to offset the best guess (playlist provided)\n      // timestamp offset.\n\n      this.updateSourceBufferTimestampOffset_(segmentInfo); // if this is a sync request we need to determine whether it should\n      // be appended or not.\n\n      if (segmentInfo.isSyncRequest) {\n        // first save/update our timing info for this segment.\n        // this is what allows us to choose an accurate segment\n        // and the main reason we make a sync request.\n        this.updateTimingInfoEnd_(segmentInfo);\n        this.syncController_.saveSegmentTimingInfo({\n          segmentInfo: segmentInfo,\n          shouldSaveTimelineMapping: this.loaderType_ === 'main'\n        });\n        var next = this.chooseNextRequest_(); // If the sync request isn't the segment that would be requested next\n        // after taking into account its timing info, do not append it.\n\n        if (next.mediaIndex !== segmentInfo.mediaIndex || next.partIndex !== segmentInfo.partIndex) {\n          this.logger_('sync segment was incorrect, not appending');\n          return;\n        } // otherwise append it like any other segment as our guess was correct.\n\n\n        this.logger_('sync segment was correct, appending');\n      } // Save some state so that in the future anything waiting on first append (and/or\n      // timestamp offset(s)) can process immediately. While the extra state isn't optimal,\n      // we need some notion of whether the timestamp offset or other relevant information\n      // has had a chance to be set.\n\n\n      segmentInfo.hasAppendedData_ = true; // Now that the timestamp offset should be set, we can append any waiting ID3 tags.\n\n      this.processMetadataQueue_();\n      this.appendData_(segmentInfo, result);\n    };\n\n    _proto.updateAppendInitSegmentStatus = function updateAppendInitSegmentStatus(segmentInfo, type) {\n      // alt audio doesn't manage timestamp offset\n      if (this.loaderType_ === 'main' && typeof segmentInfo.timestampOffset === 'number' && // in the case that we're handling partial data, we don't want to append an init\n      // segment for each chunk\n      !segmentInfo.changedTimestampOffset) {\n        // if the timestamp offset changed, the timeline may have changed, so we have to re-\n        // append init segments\n        this.appendInitSegment_ = {\n          audio: true,\n          video: true\n        };\n      }\n\n      if (this.playlistOfLastInitSegment_[type] !== segmentInfo.playlist) {\n        // make sure we append init segment on playlist changes, in case the media config\n        // changed\n        this.appendInitSegment_[type] = true;\n      }\n    };\n\n    _proto.getInitSegmentAndUpdateState_ = function getInitSegmentAndUpdateState_(_ref4) {\n      var type = _ref4.type,\n          initSegment = _ref4.initSegment,\n          map = _ref4.map,\n          playlist = _ref4.playlist; // \"The EXT-X-MAP tag specifies how to obtain the Media Initialization Section\n      // (Section 3) required to parse the applicable Media Segments.  It applies to every\n      // Media Segment that appears after it in the Playlist until the next EXT-X-MAP tag\n      // or until the end of the playlist.\"\n      // https://tools.ietf.org/html/draft-pantos-http-live-streaming-23#section-4.3.2.5\n\n      if (map) {\n        var id = initSegmentId(map);\n\n        if (this.activeInitSegmentId_ === id) {\n          // don't need to re-append the init segment if the ID matches\n          return null;\n        } // a map-specified init segment takes priority over any transmuxed (or otherwise\n        // obtained) init segment\n        //\n        // this also caches the init segment for later use\n\n\n        initSegment = this.initSegmentForMap(map, true).bytes;\n        this.activeInitSegmentId_ = id;\n      } // We used to always prepend init segments for video, however, that shouldn't be\n      // necessary. Instead, we should only append on changes, similar to what we've always\n      // done for audio. This is more important (though may not be that important) for\n      // frame-by-frame appending for LHLS, simply because of the increased quantity of\n      // appends.\n\n\n      if (initSegment && this.appendInitSegment_[type]) {\n        // Make sure we track the playlist that we last used for the init segment, so that\n        // we can re-append the init segment in the event that we get data from a new\n        // playlist. Discontinuities and track changes are handled in other sections.\n        this.playlistOfLastInitSegment_[type] = playlist; // Disable future init segment appends for this type. Until a change is necessary.\n\n        this.appendInitSegment_[type] = false; // we need to clear out the fmp4 active init segment id, since\n        // we are appending the muxer init segment\n\n        this.activeInitSegmentId_ = null;\n        return initSegment;\n      }\n\n      return null;\n    };\n\n    _proto.handleQuotaExceededError_ = function handleQuotaExceededError_(_ref5, error) {\n      var _this3 = this;\n\n      var segmentInfo = _ref5.segmentInfo,\n          type = _ref5.type,\n          bytes = _ref5.bytes;\n      var audioBuffered = this.sourceUpdater_.audioBuffered();\n      var videoBuffered = this.sourceUpdater_.videoBuffered(); // For now we're ignoring any notion of gaps in the buffer, but they, in theory,\n      // should be cleared out during the buffer removals. However, log in case it helps\n      // debug.\n\n      if (audioBuffered.length > 1) {\n        this.logger_('On QUOTA_EXCEEDED_ERR, found gaps in the audio buffer: ' + timeRangesToArray(audioBuffered).join(', '));\n      }\n\n      if (videoBuffered.length > 1) {\n        this.logger_('On QUOTA_EXCEEDED_ERR, found gaps in the video buffer: ' + timeRangesToArray(videoBuffered).join(', '));\n      }\n\n      var audioBufferStart = audioBuffered.length ? audioBuffered.start(0) : 0;\n      var audioBufferEnd = audioBuffered.length ? audioBuffered.end(audioBuffered.length - 1) : 0;\n      var videoBufferStart = videoBuffered.length ? videoBuffered.start(0) : 0;\n      var videoBufferEnd = videoBuffered.length ? videoBuffered.end(videoBuffered.length - 1) : 0;\n\n      if (audioBufferEnd - audioBufferStart <= MIN_BACK_BUFFER && videoBufferEnd - videoBufferStart <= MIN_BACK_BUFFER) {\n        // Can't remove enough buffer to make room for new segment (or the browser doesn't\n        // allow for appends of segments this size). In the future, it may be possible to\n        // split up the segment and append in pieces, but for now, error out this playlist\n        // in an attempt to switch to a more manageable rendition.\n        this.logger_('On QUOTA_EXCEEDED_ERR, single segment too large to append to ' + 'buffer, triggering an error. ' + (\"Appended byte length: \" + bytes.byteLength + \", \") + (\"audio buffer: \" + timeRangesToArray(audioBuffered).join(', ') + \", \") + (\"video buffer: \" + timeRangesToArray(videoBuffered).join(', ') + \", \"));\n        this.error({\n          message: 'Quota exceeded error with append of a single segment of content',\n          excludeUntil: Infinity\n        });\n        this.trigger('error');\n        return;\n      } // To try to resolve the quota exceeded error, clear back buffer and retry. This means\n      // that the segment-loader should block on future events until this one is handled, so\n      // that it doesn't keep moving onto further segments. Adding the call to the call\n      // queue will prevent further appends until waitingOnRemove_ and\n      // quotaExceededErrorRetryTimeout_ are cleared.\n      //\n      // Note that this will only block the current loader. In the case of demuxed content,\n      // the other load may keep filling as fast as possible. In practice, this should be\n      // OK, as it is a rare case when either audio has a high enough bitrate to fill up a\n      // source buffer, or video fills without enough room for audio to append (and without\n      // the availability of clearing out seconds of back buffer to make room for audio).\n      // But it might still be good to handle this case in the future as a TODO.\n\n\n      this.waitingOnRemove_ = true;\n      this.callQueue_.push(this.appendToSourceBuffer_.bind(this, {\n        segmentInfo: segmentInfo,\n        type: type,\n        bytes: bytes\n      }));\n      var currentTime = this.currentTime_(); // Try to remove as much audio and video as possible to make room for new content\n      // before retrying.\n\n      var timeToRemoveUntil = currentTime - MIN_BACK_BUFFER;\n      this.logger_(\"On QUOTA_EXCEEDED_ERR, removing audio/video from 0 to \" + timeToRemoveUntil);\n      this.remove(0, timeToRemoveUntil, function () {\n        _this3.logger_(\"On QUOTA_EXCEEDED_ERR, retrying append in \" + MIN_BACK_BUFFER + \"s\");\n\n        _this3.waitingOnRemove_ = false; // wait the length of time alotted in the back buffer to prevent wasted\n        // attempts (since we can't clear less than the minimum)\n\n        _this3.quotaExceededErrorRetryTimeout_ = window.setTimeout(function () {\n          _this3.logger_('On QUOTA_EXCEEDED_ERR, re-processing call queue');\n\n          _this3.quotaExceededErrorRetryTimeout_ = null;\n\n          _this3.processCallQueue_();\n        }, MIN_BACK_BUFFER * 1000);\n      }, true);\n    };\n\n    _proto.handleAppendError_ = function handleAppendError_(_ref6, error) {\n      var segmentInfo = _ref6.segmentInfo,\n          type = _ref6.type,\n          bytes = _ref6.bytes; // if there's no error, nothing to do\n\n      if (!error) {\n        return;\n      }\n\n      if (error.code === QUOTA_EXCEEDED_ERR) {\n        this.handleQuotaExceededError_({\n          segmentInfo: segmentInfo,\n          type: type,\n          bytes: bytes\n        }); // A quota exceeded error should be recoverable with a future re-append, so no need\n        // to trigger an append error.\n\n        return;\n      }\n\n      this.logger_('Received non QUOTA_EXCEEDED_ERR on append', error);\n      this.error(type + \" append of \" + bytes.length + \"b failed for segment \" + (\"#\" + segmentInfo.mediaIndex + \" in playlist \" + segmentInfo.playlist.id)); // If an append errors, we often can't recover.\n      // (see https://w3c.github.io/media-source/#sourcebuffer-append-error).\n      //\n      // Trigger a special error so that it can be handled separately from normal,\n      // recoverable errors.\n\n      this.trigger('appenderror');\n    };\n\n    _proto.appendToSourceBuffer_ = function appendToSourceBuffer_(_ref7) {\n      var segmentInfo = _ref7.segmentInfo,\n          type = _ref7.type,\n          initSegment = _ref7.initSegment,\n          data = _ref7.data,\n          bytes = _ref7.bytes; // If this is a re-append, bytes were already created and don't need to be recreated\n\n      if (!bytes) {\n        var segments = [data];\n        var byteLength = data.byteLength;\n\n        if (initSegment) {\n          // if the media initialization segment is changing, append it before the content\n          // segment\n          segments.unshift(initSegment);\n          byteLength += initSegment.byteLength;\n        } // Technically we should be OK appending the init segment separately, however, we\n        // haven't yet tested that, and prepending is how we have always done things.\n\n\n        bytes = concatSegments({\n          bytes: byteLength,\n          segments: segments\n        });\n      }\n\n      this.sourceUpdater_.appendBuffer({\n        segmentInfo: segmentInfo,\n        type: type,\n        bytes: bytes\n      }, this.handleAppendError_.bind(this, {\n        segmentInfo: segmentInfo,\n        type: type,\n        bytes: bytes\n      }));\n    };\n\n    _proto.handleSegmentTimingInfo_ = function handleSegmentTimingInfo_(type, requestId, segmentTimingInfo) {\n      if (!this.pendingSegment_ || requestId !== this.pendingSegment_.requestId) {\n        return;\n      }\n\n      var segment = this.pendingSegment_.segment;\n      var timingInfoProperty = type + \"TimingInfo\";\n\n      if (!segment[timingInfoProperty]) {\n        segment[timingInfoProperty] = {};\n      }\n\n      segment[timingInfoProperty].transmuxerPrependedSeconds = segmentTimingInfo.prependedContentDuration || 0;\n      segment[timingInfoProperty].transmuxedPresentationStart = segmentTimingInfo.start.presentation;\n      segment[timingInfoProperty].transmuxedDecodeStart = segmentTimingInfo.start.decode;\n      segment[timingInfoProperty].transmuxedPresentationEnd = segmentTimingInfo.end.presentation;\n      segment[timingInfoProperty].transmuxedDecodeEnd = segmentTimingInfo.end.decode; // mainly used as a reference for debugging\n\n      segment[timingInfoProperty].baseMediaDecodeTime = segmentTimingInfo.baseMediaDecodeTime;\n    };\n\n    _proto.appendData_ = function appendData_(segmentInfo, result) {\n      var type = result.type,\n          data = result.data;\n\n      if (!data || !data.byteLength) {\n        return;\n      }\n\n      if (type === 'audio' && this.audioDisabled_) {\n        return;\n      }\n\n      var initSegment = this.getInitSegmentAndUpdateState_({\n        type: type,\n        initSegment: result.initSegment,\n        playlist: segmentInfo.playlist,\n        map: segmentInfo.isFmp4 ? segmentInfo.segment.map : null\n      });\n      this.appendToSourceBuffer_({\n        segmentInfo: segmentInfo,\n        type: type,\n        initSegment: initSegment,\n        data: data\n      });\n    }\n    /**\n     * load a specific segment from a request into the buffer\n     *\n     * @private\n     */\n    ;\n\n    _proto.loadSegment_ = function loadSegment_(segmentInfo) {\n      var _this4 = this;\n\n      this.state = 'WAITING';\n      this.pendingSegment_ = segmentInfo;\n      this.trimBackBuffer_(segmentInfo);\n\n      if (typeof segmentInfo.timestampOffset === 'number') {\n        if (this.transmuxer_) {\n          this.transmuxer_.postMessage({\n            action: 'clearAllMp4Captions'\n          });\n        }\n      }\n\n      if (!this.hasEnoughInfoToLoad_()) {\n        this.loadQueue_.push(function () {\n          // regenerate the audioAppendStart, timestampOffset, etc as they\n          // may have changed since this function was added to the queue.\n          var options = _extends_1({}, segmentInfo, {\n            forceTimestampOffset: true\n          });\n\n          _extends_1(segmentInfo, _this4.generateSegmentInfo_(options));\n\n          _this4.isPendingTimestampOffset_ = false;\n\n          _this4.updateTransmuxerAndRequestSegment_(segmentInfo);\n        });\n        return;\n      }\n\n      this.updateTransmuxerAndRequestSegment_(segmentInfo);\n    };\n\n    _proto.updateTransmuxerAndRequestSegment_ = function updateTransmuxerAndRequestSegment_(segmentInfo) {\n      var _this5 = this; // We'll update the source buffer's timestamp offset once we have transmuxed data, but\n      // the transmuxer still needs to be updated before then.\n      //\n      // Even though keepOriginalTimestamps is set to true for the transmuxer, timestamp\n      // offset must be passed to the transmuxer for stream correcting adjustments.\n\n\n      if (this.shouldUpdateTransmuxerTimestampOffset_(segmentInfo.timestampOffset)) {\n        this.gopBuffer_.length = 0; // gopsToAlignWith was set before the GOP buffer was cleared\n\n        segmentInfo.gopsToAlignWith = [];\n        this.timeMapping_ = 0; // reset values in the transmuxer since a discontinuity should start fresh\n\n        this.transmuxer_.postMessage({\n          action: 'reset'\n        });\n        this.transmuxer_.postMessage({\n          action: 'setTimestampOffset',\n          timestampOffset: segmentInfo.timestampOffset\n        });\n      }\n\n      var simpleSegment = this.createSimplifiedSegmentObj_(segmentInfo);\n      var isEndOfStream = this.isEndOfStream_(segmentInfo.mediaIndex, segmentInfo.playlist, segmentInfo.partIndex);\n      var isWalkingForward = this.mediaIndex !== null;\n      var isDiscontinuity = segmentInfo.timeline !== this.currentTimeline_ && // currentTimeline starts at -1, so we shouldn't end the timeline switching to 0,\n      // the first timeline\n      segmentInfo.timeline > 0;\n      var isEndOfTimeline = isEndOfStream || isWalkingForward && isDiscontinuity;\n      this.logger_(\"Requesting \" + segmentInfoString(segmentInfo)); // If there's an init segment associated with this segment, but it is not cached (identified by a lack of bytes),\n      // then this init segment has never been seen before and should be appended.\n      //\n      // At this point the content type (audio/video or both) is not yet known, but it should be safe to set\n      // both to true and leave the decision of whether to append the init segment to append time.\n\n      if (simpleSegment.map && !simpleSegment.map.bytes) {\n        this.logger_('going to request init segment.');\n        this.appendInitSegment_ = {\n          video: true,\n          audio: true\n        };\n      }\n\n      segmentInfo.abortRequests = mediaSegmentRequest({\n        xhr: this.vhs_.xhr,\n        xhrOptions: this.xhrOptions_,\n        decryptionWorker: this.decrypter_,\n        segment: simpleSegment,\n        abortFn: this.handleAbort_.bind(this, segmentInfo),\n        progressFn: this.handleProgress_.bind(this),\n        trackInfoFn: this.handleTrackInfo_.bind(this),\n        timingInfoFn: this.handleTimingInfo_.bind(this),\n        videoSegmentTimingInfoFn: this.handleSegmentTimingInfo_.bind(this, 'video', segmentInfo.requestId),\n        audioSegmentTimingInfoFn: this.handleSegmentTimingInfo_.bind(this, 'audio', segmentInfo.requestId),\n        captionsFn: this.handleCaptions_.bind(this),\n        isEndOfTimeline: isEndOfTimeline,\n        endedTimelineFn: function endedTimelineFn() {\n          _this5.logger_('received endedtimeline callback');\n        },\n        id3Fn: this.handleId3_.bind(this),\n        dataFn: this.handleData_.bind(this),\n        doneFn: this.segmentRequestFinished_.bind(this),\n        onTransmuxerLog: function onTransmuxerLog(_ref8) {\n          var message = _ref8.message,\n              level = _ref8.level,\n              stream = _ref8.stream;\n\n          _this5.logger_(segmentInfoString(segmentInfo) + \" logged from transmuxer stream \" + stream + \" as a \" + level + \": \" + message);\n        }\n      });\n    }\n    /**\n     * trim the back buffer so that we don't have too much data\n     * in the source buffer\n     *\n     * @private\n     *\n     * @param {Object} segmentInfo - the current segment\n     */\n    ;\n\n    _proto.trimBackBuffer_ = function trimBackBuffer_(segmentInfo) {\n      var removeToTime = safeBackBufferTrimTime(this.seekable_(), this.currentTime_(), this.playlist_.targetDuration || 10); // Chrome has a hard limit of 150MB of\n      // buffer and a very conservative \"garbage collector\"\n      // We manually clear out the old buffer to ensure\n      // we don't trigger the QuotaExceeded error\n      // on the source buffer during subsequent appends\n\n      if (removeToTime > 0) {\n        this.remove(0, removeToTime);\n      }\n    }\n    /**\n     * created a simplified copy of the segment object with just the\n     * information necessary to perform the XHR and decryption\n     *\n     * @private\n     *\n     * @param {Object} segmentInfo - the current segment\n     * @return {Object} a simplified segment object copy\n     */\n    ;\n\n    _proto.createSimplifiedSegmentObj_ = function createSimplifiedSegmentObj_(segmentInfo) {\n      var segment = segmentInfo.segment;\n      var part = segmentInfo.part;\n      var simpleSegment = {\n        resolvedUri: part ? part.resolvedUri : segment.resolvedUri,\n        byterange: part ? part.byterange : segment.byterange,\n        requestId: segmentInfo.requestId,\n        transmuxer: segmentInfo.transmuxer,\n        audioAppendStart: segmentInfo.audioAppendStart,\n        gopsToAlignWith: segmentInfo.gopsToAlignWith,\n        part: segmentInfo.part\n      };\n      var previousSegment = segmentInfo.playlist.segments[segmentInfo.mediaIndex - 1];\n\n      if (previousSegment && previousSegment.timeline === segment.timeline) {\n        // The baseStartTime of a segment is used to handle rollover when probing the TS\n        // segment to retrieve timing information. Since the probe only looks at the media's\n        // times (e.g., PTS and DTS values of the segment), and doesn't consider the\n        // player's time (e.g., player.currentTime()), baseStartTime should reflect the\n        // media time as well. transmuxedDecodeEnd represents the end time of a segment, in\n        // seconds of media time, so should be used here. The previous segment is used since\n        // the end of the previous segment should represent the beginning of the current\n        // segment, so long as they are on the same timeline.\n        if (previousSegment.videoTimingInfo) {\n          simpleSegment.baseStartTime = previousSegment.videoTimingInfo.transmuxedDecodeEnd;\n        } else if (previousSegment.audioTimingInfo) {\n          simpleSegment.baseStartTime = previousSegment.audioTimingInfo.transmuxedDecodeEnd;\n        }\n      }\n\n      if (segment.key) {\n        // if the media sequence is greater than 2^32, the IV will be incorrect\n        // assuming 10s segments, that would be about 1300 years\n        var iv = segment.key.iv || new Uint32Array([0, 0, 0, segmentInfo.mediaIndex + segmentInfo.playlist.mediaSequence]);\n        simpleSegment.key = this.segmentKey(segment.key);\n        simpleSegment.key.iv = iv;\n      }\n\n      if (segment.map) {\n        simpleSegment.map = this.initSegmentForMap(segment.map);\n      }\n\n      return simpleSegment;\n    };\n\n    _proto.saveTransferStats_ = function saveTransferStats_(stats) {\n      // every request counts as a media request even if it has been aborted\n      // or canceled due to a timeout\n      this.mediaRequests += 1;\n\n      if (stats) {\n        this.mediaBytesTransferred += stats.bytesReceived;\n        this.mediaTransferDuration += stats.roundTripTime;\n      }\n    };\n\n    _proto.saveBandwidthRelatedStats_ = function saveBandwidthRelatedStats_(duration, stats) {\n      // byteLength will be used for throughput, and should be based on bytes receieved,\n      // which we only know at the end of the request and should reflect total bytes\n      // downloaded rather than just bytes processed from components of the segment\n      this.pendingSegment_.byteLength = stats.bytesReceived;\n\n      if (duration < MIN_SEGMENT_DURATION_TO_SAVE_STATS) {\n        this.logger_(\"Ignoring segment's bandwidth because its duration of \" + duration + (\" is less than the min to record \" + MIN_SEGMENT_DURATION_TO_SAVE_STATS));\n        return;\n      }\n\n      this.bandwidth = stats.bandwidth;\n      this.roundTrip = stats.roundTripTime;\n    };\n\n    _proto.handleTimeout_ = function handleTimeout_() {\n      // although the VTT segment loader bandwidth isn't really used, it's good to\n      // maintain functinality between segment loaders\n      this.mediaRequestsTimedout += 1;\n      this.bandwidth = 1;\n      this.roundTrip = NaN;\n      this.trigger('bandwidthupdate');\n    }\n    /**\n     * Handle the callback from the segmentRequest function and set the\n     * associated SegmentLoader state and errors if necessary\n     *\n     * @private\n     */\n    ;\n\n    _proto.segmentRequestFinished_ = function segmentRequestFinished_(error, simpleSegment, result) {\n      // TODO handle special cases, e.g., muxed audio/video but only audio in the segment\n      // check the call queue directly since this function doesn't need to deal with any\n      // data, and can continue even if the source buffers are not set up and we didn't get\n      // any data from the segment\n      if (this.callQueue_.length) {\n        this.callQueue_.push(this.segmentRequestFinished_.bind(this, error, simpleSegment, result));\n        return;\n      }\n\n      this.saveTransferStats_(simpleSegment.stats); // The request was aborted and the SegmentLoader has already been reset\n\n      if (!this.pendingSegment_) {\n        return;\n      } // the request was aborted and the SegmentLoader has already started\n      // another request. this can happen when the timeout for an aborted\n      // request triggers due to a limitation in the XHR library\n      // do not count this as any sort of request or we risk double-counting\n\n\n      if (simpleSegment.requestId !== this.pendingSegment_.requestId) {\n        return;\n      } // an error occurred from the active pendingSegment_ so reset everything\n\n\n      if (error) {\n        this.pendingSegment_ = null;\n        this.state = 'READY'; // aborts are not a true error condition and nothing corrective needs to be done\n\n        if (error.code === REQUEST_ERRORS.ABORTED) {\n          return;\n        }\n\n        this.pause(); // the error is really just that at least one of the requests timed-out\n        // set the bandwidth to a very low value and trigger an ABR switch to\n        // take emergency action\n\n        if (error.code === REQUEST_ERRORS.TIMEOUT) {\n          this.handleTimeout_();\n          return;\n        } // if control-flow has arrived here, then the error is real\n        // emit an error event to blacklist the current playlist\n\n\n        this.mediaRequestsErrored += 1;\n        this.error(error);\n        this.trigger('error');\n        return;\n      }\n\n      var segmentInfo = this.pendingSegment_; // the response was a success so set any bandwidth stats the request\n      // generated for ABR purposes\n\n      this.saveBandwidthRelatedStats_(segmentInfo.duration, simpleSegment.stats);\n      segmentInfo.endOfAllRequests = simpleSegment.endOfAllRequests;\n\n      if (result.gopInfo) {\n        this.gopBuffer_ = updateGopBuffer(this.gopBuffer_, result.gopInfo, this.safeAppend_);\n      } // Although we may have already started appending on progress, we shouldn't switch the\n      // state away from loading until we are officially done loading the segment data.\n\n\n      this.state = 'APPENDING'; // used for testing\n\n      this.trigger('appending');\n      this.waitForAppendsToComplete_(segmentInfo);\n    };\n\n    _proto.setTimeMapping_ = function setTimeMapping_(timeline) {\n      var timelineMapping = this.syncController_.mappingForTimeline(timeline);\n\n      if (timelineMapping !== null) {\n        this.timeMapping_ = timelineMapping;\n      }\n    };\n\n    _proto.updateMediaSecondsLoaded_ = function updateMediaSecondsLoaded_(segment) {\n      if (typeof segment.start === 'number' && typeof segment.end === 'number') {\n        this.mediaSecondsLoaded += segment.end - segment.start;\n      } else {\n        this.mediaSecondsLoaded += segment.duration;\n      }\n    };\n\n    _proto.shouldUpdateTransmuxerTimestampOffset_ = function shouldUpdateTransmuxerTimestampOffset_(timestampOffset) {\n      if (timestampOffset === null) {\n        return false;\n      } // note that we're potentially using the same timestamp offset for both video and\n      // audio\n\n\n      if (this.loaderType_ === 'main' && timestampOffset !== this.sourceUpdater_.videoTimestampOffset()) {\n        return true;\n      }\n\n      if (!this.audioDisabled_ && timestampOffset !== this.sourceUpdater_.audioTimestampOffset()) {\n        return true;\n      }\n\n      return false;\n    };\n\n    _proto.trueSegmentStart_ = function trueSegmentStart_(_ref9) {\n      var currentStart = _ref9.currentStart,\n          playlist = _ref9.playlist,\n          mediaIndex = _ref9.mediaIndex,\n          firstVideoFrameTimeForData = _ref9.firstVideoFrameTimeForData,\n          currentVideoTimestampOffset = _ref9.currentVideoTimestampOffset,\n          useVideoTimingInfo = _ref9.useVideoTimingInfo,\n          videoTimingInfo = _ref9.videoTimingInfo,\n          audioTimingInfo = _ref9.audioTimingInfo;\n\n      if (typeof currentStart !== 'undefined') {\n        // if start was set once, keep using it\n        return currentStart;\n      }\n\n      if (!useVideoTimingInfo) {\n        return audioTimingInfo.start;\n      }\n\n      var previousSegment = playlist.segments[mediaIndex - 1]; // The start of a segment should be the start of the first full frame contained\n      // within that segment. Since the transmuxer maintains a cache of incomplete data\n      // from and/or the last frame seen, the start time may reflect a frame that starts\n      // in the previous segment. Check for that case and ensure the start time is\n      // accurate for the segment.\n\n      if (mediaIndex === 0 || !previousSegment || typeof previousSegment.start === 'undefined' || previousSegment.end !== firstVideoFrameTimeForData + currentVideoTimestampOffset) {\n        return firstVideoFrameTimeForData;\n      }\n\n      return videoTimingInfo.start;\n    };\n\n    _proto.waitForAppendsToComplete_ = function waitForAppendsToComplete_(segmentInfo) {\n      var trackInfo = this.getCurrentMediaInfo_(segmentInfo);\n\n      if (!trackInfo) {\n        this.error({\n          message: 'No starting media returned, likely due to an unsupported media format.',\n          blacklistDuration: Infinity\n        });\n        this.trigger('error');\n        return;\n      } // Although transmuxing is done, appends may not yet be finished. Throw a marker\n      // on each queue this loader is responsible for to ensure that the appends are\n      // complete.\n\n\n      var hasAudio = trackInfo.hasAudio,\n          hasVideo = trackInfo.hasVideo,\n          isMuxed = trackInfo.isMuxed;\n      var waitForVideo = this.loaderType_ === 'main' && hasVideo;\n      var waitForAudio = !this.audioDisabled_ && hasAudio && !isMuxed;\n      segmentInfo.waitingOnAppends = 0; // segments with no data\n\n      if (!segmentInfo.hasAppendedData_) {\n        if (!segmentInfo.timingInfo && typeof segmentInfo.timestampOffset === 'number') {\n          // When there's no audio or video data in the segment, there's no audio or video\n          // timing information.\n          //\n          // If there's no audio or video timing information, then the timestamp offset\n          // can't be adjusted to the appropriate value for the transmuxer and source\n          // buffers.\n          //\n          // Therefore, the next segment should be used to set the timestamp offset.\n          this.isPendingTimestampOffset_ = true;\n        } // override settings for metadata only segments\n\n\n        segmentInfo.timingInfo = {\n          start: 0\n        };\n        segmentInfo.waitingOnAppends++;\n\n        if (!this.isPendingTimestampOffset_) {\n          // update the timestampoffset\n          this.updateSourceBufferTimestampOffset_(segmentInfo); // make sure the metadata queue is processed even though we have\n          // no video/audio data.\n\n          this.processMetadataQueue_();\n        } // append is \"done\" instantly with no data.\n\n\n        this.checkAppendsDone_(segmentInfo);\n        return;\n      } // Since source updater could call back synchronously, do the increments first.\n\n\n      if (waitForVideo) {\n        segmentInfo.waitingOnAppends++;\n      }\n\n      if (waitForAudio) {\n        segmentInfo.waitingOnAppends++;\n      }\n\n      if (waitForVideo) {\n        this.sourceUpdater_.videoQueueCallback(this.checkAppendsDone_.bind(this, segmentInfo));\n      }\n\n      if (waitForAudio) {\n        this.sourceUpdater_.audioQueueCallback(this.checkAppendsDone_.bind(this, segmentInfo));\n      }\n    };\n\n    _proto.checkAppendsDone_ = function checkAppendsDone_(segmentInfo) {\n      if (this.checkForAbort_(segmentInfo.requestId)) {\n        return;\n      }\n\n      segmentInfo.waitingOnAppends--;\n\n      if (segmentInfo.waitingOnAppends === 0) {\n        this.handleAppendsDone_();\n      }\n    };\n\n    _proto.checkForIllegalMediaSwitch = function checkForIllegalMediaSwitch(trackInfo) {\n      var illegalMediaSwitchError = illegalMediaSwitch(this.loaderType_, this.getCurrentMediaInfo_(), trackInfo);\n\n      if (illegalMediaSwitchError) {\n        this.error({\n          message: illegalMediaSwitchError,\n          blacklistDuration: Infinity\n        });\n        this.trigger('error');\n        return true;\n      }\n\n      return false;\n    };\n\n    _proto.updateSourceBufferTimestampOffset_ = function updateSourceBufferTimestampOffset_(segmentInfo) {\n      if (segmentInfo.timestampOffset === null || // we don't yet have the start for whatever media type (video or audio) has\n      // priority, timing-wise, so we must wait\n      typeof segmentInfo.timingInfo.start !== 'number' || // already updated the timestamp offset for this segment\n      segmentInfo.changedTimestampOffset || // the alt audio loader should not be responsible for setting the timestamp offset\n      this.loaderType_ !== 'main') {\n        return;\n      }\n\n      var didChange = false; // Primary timing goes by video, and audio is trimmed in the transmuxer, meaning that\n      // the timing info here comes from video. In the event that the audio is longer than\n      // the video, this will trim the start of the audio.\n      // This also trims any offset from 0 at the beginning of the media\n\n      segmentInfo.timestampOffset -= this.getSegmentStartTimeForTimestampOffsetCalculation_({\n        videoTimingInfo: segmentInfo.segment.videoTimingInfo,\n        audioTimingInfo: segmentInfo.segment.audioTimingInfo,\n        timingInfo: segmentInfo.timingInfo\n      }); // In the event that there are part segment downloads, each will try to update the\n      // timestamp offset. Retaining this bit of state prevents us from updating in the\n      // future (within the same segment), however, there may be a better way to handle it.\n\n      segmentInfo.changedTimestampOffset = true;\n\n      if (segmentInfo.timestampOffset !== this.sourceUpdater_.videoTimestampOffset()) {\n        this.sourceUpdater_.videoTimestampOffset(segmentInfo.timestampOffset);\n        didChange = true;\n      }\n\n      if (segmentInfo.timestampOffset !== this.sourceUpdater_.audioTimestampOffset()) {\n        this.sourceUpdater_.audioTimestampOffset(segmentInfo.timestampOffset);\n        didChange = true;\n      }\n\n      if (didChange) {\n        this.trigger('timestampoffset');\n      }\n    };\n\n    _proto.getSegmentStartTimeForTimestampOffsetCalculation_ = function getSegmentStartTimeForTimestampOffsetCalculation_(_ref10) {\n      var videoTimingInfo = _ref10.videoTimingInfo,\n          audioTimingInfo = _ref10.audioTimingInfo,\n          timingInfo = _ref10.timingInfo;\n\n      if (!this.useDtsForTimestampOffset_) {\n        return timingInfo.start;\n      }\n\n      if (videoTimingInfo && typeof videoTimingInfo.transmuxedDecodeStart === 'number') {\n        return videoTimingInfo.transmuxedDecodeStart;\n      } // handle audio only\n\n\n      if (audioTimingInfo && typeof audioTimingInfo.transmuxedDecodeStart === 'number') {\n        return audioTimingInfo.transmuxedDecodeStart;\n      } // handle content not transmuxed (e.g., MP4)\n\n\n      return timingInfo.start;\n    };\n\n    _proto.updateTimingInfoEnd_ = function updateTimingInfoEnd_(segmentInfo) {\n      segmentInfo.timingInfo = segmentInfo.timingInfo || {};\n      var trackInfo = this.getMediaInfo_();\n      var useVideoTimingInfo = this.loaderType_ === 'main' && trackInfo && trackInfo.hasVideo;\n      var prioritizedTimingInfo = useVideoTimingInfo && segmentInfo.videoTimingInfo ? segmentInfo.videoTimingInfo : segmentInfo.audioTimingInfo;\n\n      if (!prioritizedTimingInfo) {\n        return;\n      }\n\n      segmentInfo.timingInfo.end = typeof prioritizedTimingInfo.end === 'number' ? // End time may not exist in a case where we aren't parsing the full segment (one\n      // current example is the case of fmp4), so use the rough duration to calculate an\n      // end time.\n      prioritizedTimingInfo.end : prioritizedTimingInfo.start + segmentInfo.duration;\n    }\n    /**\n     * callback to run when appendBuffer is finished. detects if we are\n     * in a good state to do things with the data we got, or if we need\n     * to wait for more\n     *\n     * @private\n     */\n    ;\n\n    _proto.handleAppendsDone_ = function handleAppendsDone_() {\n      // appendsdone can cause an abort\n      if (this.pendingSegment_) {\n        this.trigger('appendsdone');\n      }\n\n      if (!this.pendingSegment_) {\n        this.state = 'READY'; // TODO should this move into this.checkForAbort to speed up requests post abort in\n        // all appending cases?\n\n        if (!this.paused()) {\n          this.monitorBuffer_();\n        }\n\n        return;\n      }\n\n      var segmentInfo = this.pendingSegment_; // Now that the end of the segment has been reached, we can set the end time. It's\n      // best to wait until all appends are done so we're sure that the primary media is\n      // finished (and we have its end time).\n\n      this.updateTimingInfoEnd_(segmentInfo);\n\n      if (this.shouldSaveSegmentTimingInfo_) {\n        // Timeline mappings should only be saved for the main loader. This is for multiple\n        // reasons:\n        //\n        // 1) Only one mapping is saved per timeline, meaning that if both the audio loader\n        //    and the main loader try to save the timeline mapping, whichever comes later\n        //    will overwrite the first. In theory this is OK, as the mappings should be the\n        //    same, however, it breaks for (2)\n        // 2) In the event of a live stream, the initial live point will make for a somewhat\n        //    arbitrary mapping. If audio and video streams are not perfectly in-sync, then\n        //    the mapping will be off for one of the streams, dependent on which one was\n        //    first saved (see (1)).\n        // 3) Primary timing goes by video in VHS, so the mapping should be video.\n        //\n        // Since the audio loader will wait for the main loader to load the first segment,\n        // the main loader will save the first timeline mapping, and ensure that there won't\n        // be a case where audio loads two segments without saving a mapping (thus leading\n        // to missing segment timing info).\n        this.syncController_.saveSegmentTimingInfo({\n          segmentInfo: segmentInfo,\n          shouldSaveTimelineMapping: this.loaderType_ === 'main'\n        });\n      }\n\n      var segmentDurationMessage = getTroublesomeSegmentDurationMessage(segmentInfo, this.sourceType_);\n\n      if (segmentDurationMessage) {\n        if (segmentDurationMessage.severity === 'warn') {\n          videojs.log.warn(segmentDurationMessage.message);\n        } else {\n          this.logger_(segmentDurationMessage.message);\n        }\n      }\n\n      this.recordThroughput_(segmentInfo);\n      this.pendingSegment_ = null;\n      this.state = 'READY';\n\n      if (segmentInfo.isSyncRequest) {\n        this.trigger('syncinfoupdate'); // if the sync request was not appended\n        // then it was not the correct segment.\n        // throw it away and use the data it gave us\n        // to get the correct one.\n\n        if (!segmentInfo.hasAppendedData_) {\n          this.logger_(\"Throwing away un-appended sync request \" + segmentInfoString(segmentInfo));\n          return;\n        }\n      }\n\n      this.logger_(\"Appended \" + segmentInfoString(segmentInfo));\n      this.addSegmentMetadataCue_(segmentInfo);\n      this.fetchAtBuffer_ = true;\n\n      if (this.currentTimeline_ !== segmentInfo.timeline) {\n        this.timelineChangeController_.lastTimelineChange({\n          type: this.loaderType_,\n          from: this.currentTimeline_,\n          to: segmentInfo.timeline\n        }); // If audio is not disabled, the main segment loader is responsible for updating\n        // the audio timeline as well. If the content is video only, this won't have any\n        // impact.\n\n        if (this.loaderType_ === 'main' && !this.audioDisabled_) {\n          this.timelineChangeController_.lastTimelineChange({\n            type: 'audio',\n            from: this.currentTimeline_,\n            to: segmentInfo.timeline\n          });\n        }\n      }\n\n      this.currentTimeline_ = segmentInfo.timeline; // We must update the syncinfo to recalculate the seekable range before\n      // the following conditional otherwise it may consider this a bad \"guess\"\n      // and attempt to resync when the post-update seekable window and live\n      // point would mean that this was the perfect segment to fetch\n\n      this.trigger('syncinfoupdate');\n      var segment = segmentInfo.segment;\n      var part = segmentInfo.part;\n      var badSegmentGuess = segment.end && this.currentTime_() - segment.end > segmentInfo.playlist.targetDuration * 3;\n      var badPartGuess = part && part.end && this.currentTime_() - part.end > segmentInfo.playlist.partTargetDuration * 3; // If we previously appended a segment/part that ends more than 3 part/targetDurations before\n      // the currentTime_ that means that our conservative guess was too conservative.\n      // In that case, reset the loader state so that we try to use any information gained\n      // from the previous request to create a new, more accurate, sync-point.\n\n      if (badSegmentGuess || badPartGuess) {\n        this.logger_(\"bad \" + (badSegmentGuess ? 'segment' : 'part') + \" \" + segmentInfoString(segmentInfo));\n        this.resetEverything();\n        return;\n      }\n\n      var isWalkingForward = this.mediaIndex !== null; // Don't do a rendition switch unless we have enough time to get a sync segment\n      // and conservatively guess\n\n      if (isWalkingForward) {\n        this.trigger('bandwidthupdate');\n      }\n\n      this.trigger('progress');\n      this.mediaIndex = segmentInfo.mediaIndex;\n      this.partIndex = segmentInfo.partIndex; // any time an update finishes and the last segment is in the\n      // buffer, end the stream. this ensures the \"ended\" event will\n      // fire if playback reaches that point.\n\n      if (this.isEndOfStream_(segmentInfo.mediaIndex, segmentInfo.playlist, segmentInfo.partIndex)) {\n        this.endOfStream();\n      } // used for testing\n\n\n      this.trigger('appended');\n\n      if (segmentInfo.hasAppendedData_) {\n        this.mediaAppends++;\n      }\n\n      if (!this.paused()) {\n        this.monitorBuffer_();\n      }\n    }\n    /**\n     * Records the current throughput of the decrypt, transmux, and append\n     * portion of the semgment pipeline. `throughput.rate` is a the cumulative\n     * moving average of the throughput. `throughput.count` is the number of\n     * data points in the average.\n     *\n     * @private\n     * @param {Object} segmentInfo the object returned by loadSegment\n     */\n    ;\n\n    _proto.recordThroughput_ = function recordThroughput_(segmentInfo) {\n      if (segmentInfo.duration < MIN_SEGMENT_DURATION_TO_SAVE_STATS) {\n        this.logger_(\"Ignoring segment's throughput because its duration of \" + segmentInfo.duration + (\" is less than the min to record \" + MIN_SEGMENT_DURATION_TO_SAVE_STATS));\n        return;\n      }\n\n      var rate = this.throughput.rate; // Add one to the time to ensure that we don't accidentally attempt to divide\n      // by zero in the case where the throughput is ridiculously high\n\n      var segmentProcessingTime = Date.now() - segmentInfo.endOfAllRequests + 1; // Multiply by 8000 to convert from bytes/millisecond to bits/second\n\n      var segmentProcessingThroughput = Math.floor(segmentInfo.byteLength / segmentProcessingTime * 8 * 1000); // This is just a cumulative moving average calculation:\n      //   newAvg = oldAvg + (sample - oldAvg) / (sampleCount + 1)\n\n      this.throughput.rate += (segmentProcessingThroughput - rate) / ++this.throughput.count;\n    }\n    /**\n     * Adds a cue to the segment-metadata track with some metadata information about the\n     * segment\n     *\n     * @private\n     * @param {Object} segmentInfo\n     *        the object returned by loadSegment\n     * @method addSegmentMetadataCue_\n     */\n    ;\n\n    _proto.addSegmentMetadataCue_ = function addSegmentMetadataCue_(segmentInfo) {\n      if (!this.segmentMetadataTrack_) {\n        return;\n      }\n\n      var segment = segmentInfo.segment;\n      var start = segment.start;\n      var end = segment.end; // Do not try adding the cue if the start and end times are invalid.\n\n      if (!finite(start) || !finite(end)) {\n        return;\n      }\n\n      removeCuesFromTrack(start, end, this.segmentMetadataTrack_);\n      var Cue = window.WebKitDataCue || window.VTTCue;\n      var value = {\n        custom: segment.custom,\n        dateTimeObject: segment.dateTimeObject,\n        dateTimeString: segment.dateTimeString,\n        bandwidth: segmentInfo.playlist.attributes.BANDWIDTH,\n        resolution: segmentInfo.playlist.attributes.RESOLUTION,\n        codecs: segmentInfo.playlist.attributes.CODECS,\n        byteLength: segmentInfo.byteLength,\n        uri: segmentInfo.uri,\n        timeline: segmentInfo.timeline,\n        playlist: segmentInfo.playlist.id,\n        start: start,\n        end: end\n      };\n      var data = JSON.stringify(value);\n      var cue = new Cue(start, end, data); // Attach the metadata to the value property of the cue to keep consistency between\n      // the differences of WebKitDataCue in safari and VTTCue in other browsers\n\n      cue.value = value;\n      this.segmentMetadataTrack_.addCue(cue);\n    };\n\n    return SegmentLoader;\n  }(videojs.EventTarget);\n\n  function noop() {}\n\n  var toTitleCase = function toTitleCase(string) {\n    if (typeof string !== 'string') {\n      return string;\n    }\n\n    return string.replace(/./, function (w) {\n      return w.toUpperCase();\n    });\n  };\n\n  var bufferTypes = ['video', 'audio'];\n\n  var _updating = function updating(type, sourceUpdater) {\n    var sourceBuffer = sourceUpdater[type + \"Buffer\"];\n    return sourceBuffer && sourceBuffer.updating || sourceUpdater.queuePending[type];\n  };\n\n  var nextQueueIndexOfType = function nextQueueIndexOfType(type, queue) {\n    for (var i = 0; i < queue.length; i++) {\n      var queueEntry = queue[i];\n\n      if (queueEntry.type === 'mediaSource') {\n        // If the next entry is a media source entry (uses multiple source buffers), block\n        // processing to allow it to go through first.\n        return null;\n      }\n\n      if (queueEntry.type === type) {\n        return i;\n      }\n    }\n\n    return null;\n  };\n\n  var shiftQueue = function shiftQueue(type, sourceUpdater) {\n    if (sourceUpdater.queue.length === 0) {\n      return;\n    }\n\n    var queueIndex = 0;\n    var queueEntry = sourceUpdater.queue[queueIndex];\n\n    if (queueEntry.type === 'mediaSource') {\n      if (!sourceUpdater.updating() && sourceUpdater.mediaSource.readyState !== 'closed') {\n        sourceUpdater.queue.shift();\n        queueEntry.action(sourceUpdater);\n\n        if (queueEntry.doneFn) {\n          queueEntry.doneFn();\n        } // Only specific source buffer actions must wait for async updateend events. Media\n        // Source actions process synchronously. Therefore, both audio and video source\n        // buffers are now clear to process the next queue entries.\n\n\n        shiftQueue('audio', sourceUpdater);\n        shiftQueue('video', sourceUpdater);\n      } // Media Source actions require both source buffers, so if the media source action\n      // couldn't process yet (because one or both source buffers are busy), block other\n      // queue actions until both are available and the media source action can process.\n\n\n      return;\n    }\n\n    if (type === 'mediaSource') {\n      // If the queue was shifted by a media source action (this happens when pushing a\n      // media source action onto the queue), then it wasn't from an updateend event from an\n      // audio or video source buffer, so there's no change from previous state, and no\n      // processing should be done.\n      return;\n    } // Media source queue entries don't need to consider whether the source updater is\n    // started (i.e., source buffers are created) as they don't need the source buffers, but\n    // source buffer queue entries do.\n\n\n    if (!sourceUpdater.ready() || sourceUpdater.mediaSource.readyState === 'closed' || _updating(type, sourceUpdater)) {\n      return;\n    }\n\n    if (queueEntry.type !== type) {\n      queueIndex = nextQueueIndexOfType(type, sourceUpdater.queue);\n\n      if (queueIndex === null) {\n        // Either there's no queue entry that uses this source buffer type in the queue, or\n        // there's a media source queue entry before the next entry of this type, in which\n        // case wait for that action to process first.\n        return;\n      }\n\n      queueEntry = sourceUpdater.queue[queueIndex];\n    }\n\n    sourceUpdater.queue.splice(queueIndex, 1); // Keep a record that this source buffer type is in use.\n    //\n    // The queue pending operation must be set before the action is performed in the event\n    // that the action results in a synchronous event that is acted upon. For instance, if\n    // an exception is thrown that can be handled, it's possible that new actions will be\n    // appended to an empty queue and immediately executed, but would not have the correct\n    // pending information if this property was set after the action was performed.\n\n    sourceUpdater.queuePending[type] = queueEntry;\n    queueEntry.action(type, sourceUpdater);\n\n    if (!queueEntry.doneFn) {\n      // synchronous operation, process next entry\n      sourceUpdater.queuePending[type] = null;\n      shiftQueue(type, sourceUpdater);\n      return;\n    }\n  };\n\n  var cleanupBuffer = function cleanupBuffer(type, sourceUpdater) {\n    var buffer = sourceUpdater[type + \"Buffer\"];\n    var titleType = toTitleCase(type);\n\n    if (!buffer) {\n      return;\n    }\n\n    buffer.removeEventListener('updateend', sourceUpdater[\"on\" + titleType + \"UpdateEnd_\"]);\n    buffer.removeEventListener('error', sourceUpdater[\"on\" + titleType + \"Error_\"]);\n    sourceUpdater.codecs[type] = null;\n    sourceUpdater[type + \"Buffer\"] = null;\n  };\n\n  var inSourceBuffers = function inSourceBuffers(mediaSource, sourceBuffer) {\n    return mediaSource && sourceBuffer && Array.prototype.indexOf.call(mediaSource.sourceBuffers, sourceBuffer) !== -1;\n  };\n\n  var actions = {\n    appendBuffer: function appendBuffer(bytes, segmentInfo, onError) {\n      return function (type, sourceUpdater) {\n        var sourceBuffer = sourceUpdater[type + \"Buffer\"]; // can't do anything if the media source / source buffer is null\n        // or the media source does not contain this source buffer.\n\n        if (!inSourceBuffers(sourceUpdater.mediaSource, sourceBuffer)) {\n          return;\n        }\n\n        sourceUpdater.logger_(\"Appending segment \" + segmentInfo.mediaIndex + \"'s \" + bytes.length + \" bytes to \" + type + \"Buffer\");\n\n        try {\n          sourceBuffer.appendBuffer(bytes);\n        } catch (e) {\n          sourceUpdater.logger_(\"Error with code \" + e.code + \" \" + (e.code === QUOTA_EXCEEDED_ERR ? '(QUOTA_EXCEEDED_ERR) ' : '') + (\"when appending segment \" + segmentInfo.mediaIndex + \" to \" + type + \"Buffer\"));\n          sourceUpdater.queuePending[type] = null;\n          onError(e);\n        }\n      };\n    },\n    remove: function remove(start, end) {\n      return function (type, sourceUpdater) {\n        var sourceBuffer = sourceUpdater[type + \"Buffer\"]; // can't do anything if the media source / source buffer is null\n        // or the media source does not contain this source buffer.\n\n        if (!inSourceBuffers(sourceUpdater.mediaSource, sourceBuffer)) {\n          return;\n        }\n\n        sourceUpdater.logger_(\"Removing \" + start + \" to \" + end + \" from \" + type + \"Buffer\");\n\n        try {\n          sourceBuffer.remove(start, end);\n        } catch (e) {\n          sourceUpdater.logger_(\"Remove \" + start + \" to \" + end + \" from \" + type + \"Buffer failed\");\n        }\n      };\n    },\n    timestampOffset: function timestampOffset(offset) {\n      return function (type, sourceUpdater) {\n        var sourceBuffer = sourceUpdater[type + \"Buffer\"]; // can't do anything if the media source / source buffer is null\n        // or the media source does not contain this source buffer.\n\n        if (!inSourceBuffers(sourceUpdater.mediaSource, sourceBuffer)) {\n          return;\n        }\n\n        sourceUpdater.logger_(\"Setting \" + type + \"timestampOffset to \" + offset);\n        sourceBuffer.timestampOffset = offset;\n      };\n    },\n    callback: function callback(_callback) {\n      return function (type, sourceUpdater) {\n        _callback();\n      };\n    },\n    endOfStream: function endOfStream(error) {\n      return function (sourceUpdater) {\n        if (sourceUpdater.mediaSource.readyState !== 'open') {\n          return;\n        }\n\n        sourceUpdater.logger_(\"Calling mediaSource endOfStream(\" + (error || '') + \")\");\n\n        try {\n          sourceUpdater.mediaSource.endOfStream(error);\n        } catch (e) {\n          videojs.log.warn('Failed to call media source endOfStream', e);\n        }\n      };\n    },\n    duration: function duration(_duration) {\n      return function (sourceUpdater) {\n        sourceUpdater.logger_(\"Setting mediaSource duration to \" + _duration);\n\n        try {\n          sourceUpdater.mediaSource.duration = _duration;\n        } catch (e) {\n          videojs.log.warn('Failed to set media source duration', e);\n        }\n      };\n    },\n    abort: function abort() {\n      return function (type, sourceUpdater) {\n        if (sourceUpdater.mediaSource.readyState !== 'open') {\n          return;\n        }\n\n        var sourceBuffer = sourceUpdater[type + \"Buffer\"]; // can't do anything if the media source / source buffer is null\n        // or the media source does not contain this source buffer.\n\n        if (!inSourceBuffers(sourceUpdater.mediaSource, sourceBuffer)) {\n          return;\n        }\n\n        sourceUpdater.logger_(\"calling abort on \" + type + \"Buffer\");\n\n        try {\n          sourceBuffer.abort();\n        } catch (e) {\n          videojs.log.warn(\"Failed to abort on \" + type + \"Buffer\", e);\n        }\n      };\n    },\n    addSourceBuffer: function addSourceBuffer(type, codec) {\n      return function (sourceUpdater) {\n        var titleType = toTitleCase(type);\n        var mime = getMimeForCodec(codec);\n        sourceUpdater.logger_(\"Adding \" + type + \"Buffer with codec \" + codec + \" to mediaSource\");\n        var sourceBuffer = sourceUpdater.mediaSource.addSourceBuffer(mime);\n        sourceBuffer.addEventListener('updateend', sourceUpdater[\"on\" + titleType + \"UpdateEnd_\"]);\n        sourceBuffer.addEventListener('error', sourceUpdater[\"on\" + titleType + \"Error_\"]);\n        sourceUpdater.codecs[type] = codec;\n        sourceUpdater[type + \"Buffer\"] = sourceBuffer;\n      };\n    },\n    removeSourceBuffer: function removeSourceBuffer(type) {\n      return function (sourceUpdater) {\n        var sourceBuffer = sourceUpdater[type + \"Buffer\"];\n        cleanupBuffer(type, sourceUpdater); // can't do anything if the media source / source buffer is null\n        // or the media source does not contain this source buffer.\n\n        if (!inSourceBuffers(sourceUpdater.mediaSource, sourceBuffer)) {\n          return;\n        }\n\n        sourceUpdater.logger_(\"Removing \" + type + \"Buffer with codec \" + sourceUpdater.codecs[type] + \" from mediaSource\");\n\n        try {\n          sourceUpdater.mediaSource.removeSourceBuffer(sourceBuffer);\n        } catch (e) {\n          videojs.log.warn(\"Failed to removeSourceBuffer \" + type + \"Buffer\", e);\n        }\n      };\n    },\n    changeType: function changeType(codec) {\n      return function (type, sourceUpdater) {\n        var sourceBuffer = sourceUpdater[type + \"Buffer\"];\n        var mime = getMimeForCodec(codec); // can't do anything if the media source / source buffer is null\n        // or the media source does not contain this source buffer.\n\n        if (!inSourceBuffers(sourceUpdater.mediaSource, sourceBuffer)) {\n          return;\n        } // do not update codec if we don't need to.\n\n\n        if (sourceUpdater.codecs[type] === codec) {\n          return;\n        }\n\n        sourceUpdater.logger_(\"changing \" + type + \"Buffer codec from \" + sourceUpdater.codecs[type] + \" to \" + codec);\n        sourceBuffer.changeType(mime);\n        sourceUpdater.codecs[type] = codec;\n      };\n    }\n  };\n\n  var pushQueue = function pushQueue(_ref) {\n    var type = _ref.type,\n        sourceUpdater = _ref.sourceUpdater,\n        action = _ref.action,\n        doneFn = _ref.doneFn,\n        name = _ref.name;\n    sourceUpdater.queue.push({\n      type: type,\n      action: action,\n      doneFn: doneFn,\n      name: name\n    });\n    shiftQueue(type, sourceUpdater);\n  };\n\n  var onUpdateend = function onUpdateend(type, sourceUpdater) {\n    return function (e) {\n      // Although there should, in theory, be a pending action for any updateend receieved,\n      // there are some actions that may trigger updateend events without set definitions in\n      // the w3c spec. For instance, setting the duration on the media source may trigger\n      // updateend events on source buffers. This does not appear to be in the spec. As such,\n      // if we encounter an updateend without a corresponding pending action from our queue\n      // for that source buffer type, process the next action.\n      if (sourceUpdater.queuePending[type]) {\n        var doneFn = sourceUpdater.queuePending[type].doneFn;\n        sourceUpdater.queuePending[type] = null;\n\n        if (doneFn) {\n          // if there's an error, report it\n          doneFn(sourceUpdater[type + \"Error_\"]);\n        }\n      }\n\n      shiftQueue(type, sourceUpdater);\n    };\n  };\n  /**\n   * A queue of callbacks to be serialized and applied when a\n   * MediaSource and its associated SourceBuffers are not in the\n   * updating state. It is used by the segment loader to update the\n   * underlying SourceBuffers when new data is loaded, for instance.\n   *\n   * @class SourceUpdater\n   * @param {MediaSource} mediaSource the MediaSource to create the SourceBuffer from\n   * @param {string} mimeType the desired MIME type of the underlying SourceBuffer\n   */\n\n\n  var SourceUpdater = /*#__PURE__*/function (_videojs$EventTarget) {\n    inheritsLoose(SourceUpdater, _videojs$EventTarget);\n\n    function SourceUpdater(mediaSource) {\n      var _this;\n\n      _this = _videojs$EventTarget.call(this) || this;\n      _this.mediaSource = mediaSource;\n\n      _this.sourceopenListener_ = function () {\n        return shiftQueue('mediaSource', assertThisInitialized(_this));\n      };\n\n      _this.mediaSource.addEventListener('sourceopen', _this.sourceopenListener_);\n\n      _this.logger_ = logger('SourceUpdater'); // initial timestamp offset is 0\n\n      _this.audioTimestampOffset_ = 0;\n      _this.videoTimestampOffset_ = 0;\n      _this.queue = [];\n      _this.queuePending = {\n        audio: null,\n        video: null\n      };\n      _this.delayedAudioAppendQueue_ = [];\n      _this.videoAppendQueued_ = false;\n      _this.codecs = {};\n      _this.onVideoUpdateEnd_ = onUpdateend('video', assertThisInitialized(_this));\n      _this.onAudioUpdateEnd_ = onUpdateend('audio', assertThisInitialized(_this));\n\n      _this.onVideoError_ = function (e) {\n        // used for debugging\n        _this.videoError_ = e;\n      };\n\n      _this.onAudioError_ = function (e) {\n        // used for debugging\n        _this.audioError_ = e;\n      };\n\n      _this.createdSourceBuffers_ = false;\n      _this.initializedEme_ = false;\n      _this.triggeredReady_ = false;\n      return _this;\n    }\n\n    var _proto = SourceUpdater.prototype;\n\n    _proto.initializedEme = function initializedEme() {\n      this.initializedEme_ = true;\n      this.triggerReady();\n    };\n\n    _proto.hasCreatedSourceBuffers = function hasCreatedSourceBuffers() {\n      // if false, likely waiting on one of the segment loaders to get enough data to create\n      // source buffers\n      return this.createdSourceBuffers_;\n    };\n\n    _proto.hasInitializedAnyEme = function hasInitializedAnyEme() {\n      return this.initializedEme_;\n    };\n\n    _proto.ready = function ready() {\n      return this.hasCreatedSourceBuffers() && this.hasInitializedAnyEme();\n    };\n\n    _proto.createSourceBuffers = function createSourceBuffers(codecs) {\n      if (this.hasCreatedSourceBuffers()) {\n        // already created them before\n        return;\n      } // the intial addOrChangeSourceBuffers will always be\n      // two add buffers.\n\n\n      this.addOrChangeSourceBuffers(codecs);\n      this.createdSourceBuffers_ = true;\n      this.trigger('createdsourcebuffers');\n      this.triggerReady();\n    };\n\n    _proto.triggerReady = function triggerReady() {\n      // only allow ready to be triggered once, this prevents the case\n      // where:\n      // 1. we trigger createdsourcebuffers\n      // 2. ie 11 synchronously initializates eme\n      // 3. the synchronous initialization causes us to trigger ready\n      // 4. We go back to the ready check in createSourceBuffers and ready is triggered again.\n      if (this.ready() && !this.triggeredReady_) {\n        this.triggeredReady_ = true;\n        this.trigger('ready');\n      }\n    }\n    /**\n     * Add a type of source buffer to the media source.\n     *\n     * @param {string} type\n     *        The type of source buffer to add.\n     *\n     * @param {string} codec\n     *        The codec to add the source buffer with.\n     */\n    ;\n\n    _proto.addSourceBuffer = function addSourceBuffer(type, codec) {\n      pushQueue({\n        type: 'mediaSource',\n        sourceUpdater: this,\n        action: actions.addSourceBuffer(type, codec),\n        name: 'addSourceBuffer'\n      });\n    }\n    /**\n     * call abort on a source buffer.\n     *\n     * @param {string} type\n     *        The type of source buffer to call abort on.\n     */\n    ;\n\n    _proto.abort = function abort(type) {\n      pushQueue({\n        type: type,\n        sourceUpdater: this,\n        action: actions.abort(type),\n        name: 'abort'\n      });\n    }\n    /**\n     * Call removeSourceBuffer and remove a specific type\n     * of source buffer on the mediaSource.\n     *\n     * @param {string} type\n     *        The type of source buffer to remove.\n     */\n    ;\n\n    _proto.removeSourceBuffer = function removeSourceBuffer(type) {\n      if (!this.canRemoveSourceBuffer()) {\n        videojs.log.error('removeSourceBuffer is not supported!');\n        return;\n      }\n\n      pushQueue({\n        type: 'mediaSource',\n        sourceUpdater: this,\n        action: actions.removeSourceBuffer(type),\n        name: 'removeSourceBuffer'\n      });\n    }\n    /**\n     * Whether or not the removeSourceBuffer function is supported\n     * on the mediaSource.\n     *\n     * @return {boolean}\n     *          if removeSourceBuffer can be called.\n     */\n    ;\n\n    _proto.canRemoveSourceBuffer = function canRemoveSourceBuffer() {\n      // IE reports that it supports removeSourceBuffer, but often throws\n      // errors when attempting to use the function. So we report that it\n      // does not support removeSourceBuffer. As of Firefox 83 removeSourceBuffer\n      // throws errors, so we report that it does not support this as well.\n      return !videojs.browser.IE_VERSION && !videojs.browser.IS_FIREFOX && window.MediaSource && window.MediaSource.prototype && typeof window.MediaSource.prototype.removeSourceBuffer === 'function';\n    }\n    /**\n     * Whether or not the changeType function is supported\n     * on our SourceBuffers.\n     *\n     * @return {boolean}\n     *         if changeType can be called.\n     */\n    ;\n\n    SourceUpdater.canChangeType = function canChangeType() {\n      return window.SourceBuffer && window.SourceBuffer.prototype && typeof window.SourceBuffer.prototype.changeType === 'function';\n    }\n    /**\n     * Whether or not the changeType function is supported\n     * on our SourceBuffers.\n     *\n     * @return {boolean}\n     *         if changeType can be called.\n     */\n    ;\n\n    _proto.canChangeType = function canChangeType() {\n      return this.constructor.canChangeType();\n    }\n    /**\n     * Call the changeType function on a source buffer, given the code and type.\n     *\n     * @param {string} type\n     *        The type of source buffer to call changeType on.\n     *\n     * @param {string} codec\n     *        The codec string to change type with on the source buffer.\n     */\n    ;\n\n    _proto.changeType = function changeType(type, codec) {\n      if (!this.canChangeType()) {\n        videojs.log.error('changeType is not supported!');\n        return;\n      }\n\n      pushQueue({\n        type: type,\n        sourceUpdater: this,\n        action: actions.changeType(codec),\n        name: 'changeType'\n      });\n    }\n    /**\n     * Add source buffers with a codec or, if they are already created,\n     * call changeType on source buffers using changeType.\n     *\n     * @param {Object} codecs\n     *        Codecs to switch to\n     */\n    ;\n\n    _proto.addOrChangeSourceBuffers = function addOrChangeSourceBuffers(codecs) {\n      var _this2 = this;\n\n      if (!codecs || typeof codecs !== 'object' || Object.keys(codecs).length === 0) {\n        throw new Error('Cannot addOrChangeSourceBuffers to undefined codecs');\n      }\n\n      Object.keys(codecs).forEach(function (type) {\n        var codec = codecs[type];\n\n        if (!_this2.hasCreatedSourceBuffers()) {\n          return _this2.addSourceBuffer(type, codec);\n        }\n\n        if (_this2.canChangeType()) {\n          _this2.changeType(type, codec);\n        }\n      });\n    }\n    /**\n     * Queue an update to append an ArrayBuffer.\n     *\n     * @param {MediaObject} object containing audioBytes and/or videoBytes\n     * @param {Function} done the function to call when done\n     * @see http://www.w3.org/TR/media-source/#widl-SourceBuffer-appendBuffer-void-ArrayBuffer-data\n     */\n    ;\n\n    _proto.appendBuffer = function appendBuffer(options, doneFn) {\n      var _this3 = this;\n\n      var segmentInfo = options.segmentInfo,\n          type = options.type,\n          bytes = options.bytes;\n      this.processedAppend_ = true;\n\n      if (type === 'audio' && this.videoBuffer && !this.videoAppendQueued_) {\n        this.delayedAudioAppendQueue_.push([options, doneFn]);\n        this.logger_(\"delayed audio append of \" + bytes.length + \" until video append\");\n        return;\n      } // In the case of certain errors, for instance, QUOTA_EXCEEDED_ERR, updateend will\n      // not be fired. This means that the queue will be blocked until the next action\n      // taken by the segment-loader. Provide a mechanism for segment-loader to handle\n      // these errors by calling the doneFn with the specific error.\n\n\n      var onError = doneFn;\n      pushQueue({\n        type: type,\n        sourceUpdater: this,\n        action: actions.appendBuffer(bytes, segmentInfo || {\n          mediaIndex: -1\n        }, onError),\n        doneFn: doneFn,\n        name: 'appendBuffer'\n      });\n\n      if (type === 'video') {\n        this.videoAppendQueued_ = true;\n\n        if (!this.delayedAudioAppendQueue_.length) {\n          return;\n        }\n\n        var queue = this.delayedAudioAppendQueue_.slice();\n        this.logger_(\"queuing delayed audio \" + queue.length + \" appendBuffers\");\n        this.delayedAudioAppendQueue_.length = 0;\n        queue.forEach(function (que) {\n          _this3.appendBuffer.apply(_this3, que);\n        });\n      }\n    }\n    /**\n     * Get the audio buffer's buffered timerange.\n     *\n     * @return {TimeRange}\n     *         The audio buffer's buffered time range\n     */\n    ;\n\n    _proto.audioBuffered = function audioBuffered() {\n      // no media source/source buffer or it isn't in the media sources\n      // source buffer list\n      if (!inSourceBuffers(this.mediaSource, this.audioBuffer)) {\n        return videojs.createTimeRange();\n      }\n\n      return this.audioBuffer.buffered ? this.audioBuffer.buffered : videojs.createTimeRange();\n    }\n    /**\n     * Get the video buffer's buffered timerange.\n     *\n     * @return {TimeRange}\n     *         The video buffer's buffered time range\n     */\n    ;\n\n    _proto.videoBuffered = function videoBuffered() {\n      // no media source/source buffer or it isn't in the media sources\n      // source buffer list\n      if (!inSourceBuffers(this.mediaSource, this.videoBuffer)) {\n        return videojs.createTimeRange();\n      }\n\n      return this.videoBuffer.buffered ? this.videoBuffer.buffered : videojs.createTimeRange();\n    }\n    /**\n     * Get a combined video/audio buffer's buffered timerange.\n     *\n     * @return {TimeRange}\n     *         the combined time range\n     */\n    ;\n\n    _proto.buffered = function buffered() {\n      var video = inSourceBuffers(this.mediaSource, this.videoBuffer) ? this.videoBuffer : null;\n      var audio = inSourceBuffers(this.mediaSource, this.audioBuffer) ? this.audioBuffer : null;\n\n      if (audio && !video) {\n        return this.audioBuffered();\n      }\n\n      if (video && !audio) {\n        return this.videoBuffered();\n      }\n\n      return bufferIntersection(this.audioBuffered(), this.videoBuffered());\n    }\n    /**\n     * Add a callback to the queue that will set duration on the mediaSource.\n     *\n     * @param {number} duration\n     *        The duration to set\n     *\n     * @param {Function} [doneFn]\n     *        function to run after duration has been set.\n     */\n    ;\n\n    _proto.setDuration = function setDuration(duration, doneFn) {\n      if (doneFn === void 0) {\n        doneFn = noop;\n      } // In order to set the duration on the media source, it's necessary to wait for all\n      // source buffers to no longer be updating. \"If the updating attribute equals true on\n      // any SourceBuffer in sourceBuffers, then throw an InvalidStateError exception and\n      // abort these steps.\" (source: https://www.w3.org/TR/media-source/#attributes).\n\n\n      pushQueue({\n        type: 'mediaSource',\n        sourceUpdater: this,\n        action: actions.duration(duration),\n        name: 'duration',\n        doneFn: doneFn\n      });\n    }\n    /**\n     * Add a mediaSource endOfStream call to the queue\n     *\n     * @param {Error} [error]\n     *        Call endOfStream with an error\n     *\n     * @param {Function} [doneFn]\n     *        A function that should be called when the\n     *        endOfStream call has finished.\n     */\n    ;\n\n    _proto.endOfStream = function endOfStream(error, doneFn) {\n      if (error === void 0) {\n        error = null;\n      }\n\n      if (doneFn === void 0) {\n        doneFn = noop;\n      }\n\n      if (typeof error !== 'string') {\n        error = undefined;\n      } // In order to set the duration on the media source, it's necessary to wait for all\n      // source buffers to no longer be updating. \"If the updating attribute equals true on\n      // any SourceBuffer in sourceBuffers, then throw an InvalidStateError exception and\n      // abort these steps.\" (source: https://www.w3.org/TR/media-source/#attributes).\n\n\n      pushQueue({\n        type: 'mediaSource',\n        sourceUpdater: this,\n        action: actions.endOfStream(error),\n        name: 'endOfStream',\n        doneFn: doneFn\n      });\n    }\n    /**\n     * Queue an update to remove a time range from the buffer.\n     *\n     * @param {number} start where to start the removal\n     * @param {number} end where to end the removal\n     * @param {Function} [done=noop] optional callback to be executed when the remove\n     * operation is complete\n     * @see http://www.w3.org/TR/media-source/#widl-SourceBuffer-remove-void-double-start-unrestricted-double-end\n     */\n    ;\n\n    _proto.removeAudio = function removeAudio(start, end, done) {\n      if (done === void 0) {\n        done = noop;\n      }\n\n      if (!this.audioBuffered().length || this.audioBuffered().end(0) === 0) {\n        done();\n        return;\n      }\n\n      pushQueue({\n        type: 'audio',\n        sourceUpdater: this,\n        action: actions.remove(start, end),\n        doneFn: done,\n        name: 'remove'\n      });\n    }\n    /**\n     * Queue an update to remove a time range from the buffer.\n     *\n     * @param {number} start where to start the removal\n     * @param {number} end where to end the removal\n     * @param {Function} [done=noop] optional callback to be executed when the remove\n     * operation is complete\n     * @see http://www.w3.org/TR/media-source/#widl-SourceBuffer-remove-void-double-start-unrestricted-double-end\n     */\n    ;\n\n    _proto.removeVideo = function removeVideo(start, end, done) {\n      if (done === void 0) {\n        done = noop;\n      }\n\n      if (!this.videoBuffered().length || this.videoBuffered().end(0) === 0) {\n        done();\n        return;\n      }\n\n      pushQueue({\n        type: 'video',\n        sourceUpdater: this,\n        action: actions.remove(start, end),\n        doneFn: done,\n        name: 'remove'\n      });\n    }\n    /**\n     * Whether the underlying sourceBuffer is updating or not\n     *\n     * @return {boolean} the updating status of the SourceBuffer\n     */\n    ;\n\n    _proto.updating = function updating() {\n      // the audio/video source buffer is updating\n      if (_updating('audio', this) || _updating('video', this)) {\n        return true;\n      }\n\n      return false;\n    }\n    /**\n     * Set/get the timestampoffset on the audio SourceBuffer\n     *\n     * @return {number} the timestamp offset\n     */\n    ;\n\n    _proto.audioTimestampOffset = function audioTimestampOffset(offset) {\n      if (typeof offset !== 'undefined' && this.audioBuffer && // no point in updating if it's the same\n      this.audioTimestampOffset_ !== offset) {\n        pushQueue({\n          type: 'audio',\n          sourceUpdater: this,\n          action: actions.timestampOffset(offset),\n          name: 'timestampOffset'\n        });\n        this.audioTimestampOffset_ = offset;\n      }\n\n      return this.audioTimestampOffset_;\n    }\n    /**\n     * Set/get the timestampoffset on the video SourceBuffer\n     *\n     * @return {number} the timestamp offset\n     */\n    ;\n\n    _proto.videoTimestampOffset = function videoTimestampOffset(offset) {\n      if (typeof offset !== 'undefined' && this.videoBuffer && // no point in updating if it's the same\n      this.videoTimestampOffset !== offset) {\n        pushQueue({\n          type: 'video',\n          sourceUpdater: this,\n          action: actions.timestampOffset(offset),\n          name: 'timestampOffset'\n        });\n        this.videoTimestampOffset_ = offset;\n      }\n\n      return this.videoTimestampOffset_;\n    }\n    /**\n     * Add a function to the queue that will be called\n     * when it is its turn to run in the audio queue.\n     *\n     * @param {Function} callback\n     *        The callback to queue.\n     */\n    ;\n\n    _proto.audioQueueCallback = function audioQueueCallback(callback) {\n      if (!this.audioBuffer) {\n        return;\n      }\n\n      pushQueue({\n        type: 'audio',\n        sourceUpdater: this,\n        action: actions.callback(callback),\n        name: 'callback'\n      });\n    }\n    /**\n     * Add a function to the queue that will be called\n     * when it is its turn to run in the video queue.\n     *\n     * @param {Function} callback\n     *        The callback to queue.\n     */\n    ;\n\n    _proto.videoQueueCallback = function videoQueueCallback(callback) {\n      if (!this.videoBuffer) {\n        return;\n      }\n\n      pushQueue({\n        type: 'video',\n        sourceUpdater: this,\n        action: actions.callback(callback),\n        name: 'callback'\n      });\n    }\n    /**\n     * dispose of the source updater and the underlying sourceBuffer\n     */\n    ;\n\n    _proto.dispose = function dispose() {\n      var _this4 = this;\n\n      this.trigger('dispose');\n      bufferTypes.forEach(function (type) {\n        _this4.abort(type);\n\n        if (_this4.canRemoveSourceBuffer()) {\n          _this4.removeSourceBuffer(type);\n        } else {\n          _this4[type + \"QueueCallback\"](function () {\n            return cleanupBuffer(type, _this4);\n          });\n        }\n      });\n      this.videoAppendQueued_ = false;\n      this.delayedAudioAppendQueue_.length = 0;\n\n      if (this.sourceopenListener_) {\n        this.mediaSource.removeEventListener('sourceopen', this.sourceopenListener_);\n      }\n\n      this.off();\n    };\n\n    return SourceUpdater;\n  }(videojs.EventTarget);\n\n  var uint8ToUtf8 = function uint8ToUtf8(uintArray) {\n    return decodeURIComponent(escape(String.fromCharCode.apply(null, uintArray)));\n  };\n\n  var VTT_LINE_TERMINATORS = new Uint8Array('\\n\\n'.split('').map(function (_char3) {\n    return _char3.charCodeAt(0);\n  }));\n  /**\n   * An object that manages segment loading and appending.\n   *\n   * @class VTTSegmentLoader\n   * @param {Object} options required and optional options\n   * @extends videojs.EventTarget\n   */\n\n  var VTTSegmentLoader = /*#__PURE__*/function (_SegmentLoader) {\n    inheritsLoose(VTTSegmentLoader, _SegmentLoader);\n\n    function VTTSegmentLoader(settings, options) {\n      var _this;\n\n      if (options === void 0) {\n        options = {};\n      }\n\n      _this = _SegmentLoader.call(this, settings, options) || this; // SegmentLoader requires a MediaSource be specified or it will throw an error;\n      // however, VTTSegmentLoader has no need of a media source, so delete the reference\n\n      _this.mediaSource_ = null;\n      _this.subtitlesTrack_ = null;\n      _this.loaderType_ = 'subtitle';\n      _this.featuresNativeTextTracks_ = settings.featuresNativeTextTracks; // The VTT segment will have its own time mappings. Saving VTT segment timing info in\n      // the sync controller leads to improper behavior.\n\n      _this.shouldSaveSegmentTimingInfo_ = false;\n      return _this;\n    }\n\n    var _proto = VTTSegmentLoader.prototype;\n\n    _proto.createTransmuxer_ = function createTransmuxer_() {\n      // don't need to transmux any subtitles\n      return null;\n    }\n    /**\n     * Indicates which time ranges are buffered\n     *\n     * @return {TimeRange}\n     *         TimeRange object representing the current buffered ranges\n     */\n    ;\n\n    _proto.buffered_ = function buffered_() {\n      if (!this.subtitlesTrack_ || !this.subtitlesTrack_.cues || !this.subtitlesTrack_.cues.length) {\n        return videojs.createTimeRanges();\n      }\n\n      var cues = this.subtitlesTrack_.cues;\n      var start = cues[0].startTime;\n      var end = cues[cues.length - 1].startTime;\n      return videojs.createTimeRanges([[start, end]]);\n    }\n    /**\n     * Gets and sets init segment for the provided map\n     *\n     * @param {Object} map\n     *        The map object representing the init segment to get or set\n     * @param {boolean=} set\n     *        If true, the init segment for the provided map should be saved\n     * @return {Object}\n     *         map object for desired init segment\n     */\n    ;\n\n    _proto.initSegmentForMap = function initSegmentForMap(map, set) {\n      if (set === void 0) {\n        set = false;\n      }\n\n      if (!map) {\n        return null;\n      }\n\n      var id = initSegmentId(map);\n      var storedMap = this.initSegments_[id];\n\n      if (set && !storedMap && map.bytes) {\n        // append WebVTT line terminators to the media initialization segment if it exists\n        // to follow the WebVTT spec (https://w3c.github.io/webvtt/#file-structure) that\n        // requires two or more WebVTT line terminators between the WebVTT header and the\n        // rest of the file\n        var combinedByteLength = VTT_LINE_TERMINATORS.byteLength + map.bytes.byteLength;\n        var combinedSegment = new Uint8Array(combinedByteLength);\n        combinedSegment.set(map.bytes);\n        combinedSegment.set(VTT_LINE_TERMINATORS, map.bytes.byteLength);\n        this.initSegments_[id] = storedMap = {\n          resolvedUri: map.resolvedUri,\n          byterange: map.byterange,\n          bytes: combinedSegment\n        };\n      }\n\n      return storedMap || map;\n    }\n    /**\n     * Returns true if all configuration required for loading is present, otherwise false.\n     *\n     * @return {boolean} True if the all configuration is ready for loading\n     * @private\n     */\n    ;\n\n    _proto.couldBeginLoading_ = function couldBeginLoading_() {\n      return this.playlist_ && this.subtitlesTrack_ && !this.paused();\n    }\n    /**\n     * Once all the starting parameters have been specified, begin\n     * operation. This method should only be invoked from the INIT\n     * state.\n     *\n     * @private\n     */\n    ;\n\n    _proto.init_ = function init_() {\n      this.state = 'READY';\n      this.resetEverything();\n      return this.monitorBuffer_();\n    }\n    /**\n     * Set a subtitle track on the segment loader to add subtitles to\n     *\n     * @param {TextTrack=} track\n     *        The text track to add loaded subtitles to\n     * @return {TextTrack}\n     *        Returns the subtitles track\n     */\n    ;\n\n    _proto.track = function track(_track) {\n      if (typeof _track === 'undefined') {\n        return this.subtitlesTrack_;\n      }\n\n      this.subtitlesTrack_ = _track; // if we were unpaused but waiting for a sourceUpdater, start\n      // buffering now\n\n      if (this.state === 'INIT' && this.couldBeginLoading_()) {\n        this.init_();\n      }\n\n      return this.subtitlesTrack_;\n    }\n    /**\n     * Remove any data in the source buffer between start and end times\n     *\n     * @param {number} start - the start time of the region to remove from the buffer\n     * @param {number} end - the end time of the region to remove from the buffer\n     */\n    ;\n\n    _proto.remove = function remove(start, end) {\n      removeCuesFromTrack(start, end, this.subtitlesTrack_);\n    }\n    /**\n     * fill the buffer with segements unless the sourceBuffers are\n     * currently updating\n     *\n     * Note: this function should only ever be called by monitorBuffer_\n     * and never directly\n     *\n     * @private\n     */\n    ;\n\n    _proto.fillBuffer_ = function fillBuffer_() {\n      var _this2 = this; // see if we need to begin loading immediately\n\n\n      var segmentInfo = this.chooseNextRequest_();\n\n      if (!segmentInfo) {\n        return;\n      }\n\n      if (this.syncController_.timestampOffsetForTimeline(segmentInfo.timeline) === null) {\n        // We don't have the timestamp offset that we need to sync subtitles.\n        // Rerun on a timestamp offset or user interaction.\n        var checkTimestampOffset = function checkTimestampOffset() {\n          _this2.state = 'READY';\n\n          if (!_this2.paused()) {\n            // if not paused, queue a buffer check as soon as possible\n            _this2.monitorBuffer_();\n          }\n        };\n\n        this.syncController_.one('timestampoffset', checkTimestampOffset);\n        this.state = 'WAITING_ON_TIMELINE';\n        return;\n      }\n\n      this.loadSegment_(segmentInfo);\n    } // never set a timestamp offset for vtt segments.\n    ;\n\n    _proto.timestampOffsetForSegment_ = function timestampOffsetForSegment_() {\n      return null;\n    };\n\n    _proto.chooseNextRequest_ = function chooseNextRequest_() {\n      return this.skipEmptySegments_(_SegmentLoader.prototype.chooseNextRequest_.call(this));\n    }\n    /**\n     * Prevents the segment loader from requesting segments we know contain no subtitles\n     * by walking forward until we find the next segment that we don't know whether it is\n     * empty or not.\n     *\n     * @param {Object} segmentInfo\n     *        a segment info object that describes the current segment\n     * @return {Object}\n     *         a segment info object that describes the current segment\n     */\n    ;\n\n    _proto.skipEmptySegments_ = function skipEmptySegments_(segmentInfo) {\n      while (segmentInfo && segmentInfo.segment.empty) {\n        // stop at the last possible segmentInfo\n        if (segmentInfo.mediaIndex + 1 >= segmentInfo.playlist.segments.length) {\n          segmentInfo = null;\n          break;\n        }\n\n        segmentInfo = this.generateSegmentInfo_({\n          playlist: segmentInfo.playlist,\n          mediaIndex: segmentInfo.mediaIndex + 1,\n          startOfSegment: segmentInfo.startOfSegment + segmentInfo.duration,\n          isSyncRequest: segmentInfo.isSyncRequest\n        });\n      }\n\n      return segmentInfo;\n    };\n\n    _proto.stopForError = function stopForError(error) {\n      this.error(error);\n      this.state = 'READY';\n      this.pause();\n      this.trigger('error');\n    }\n    /**\n     * append a decrypted segement to the SourceBuffer through a SourceUpdater\n     *\n     * @private\n     */\n    ;\n\n    _proto.segmentRequestFinished_ = function segmentRequestFinished_(error, simpleSegment, result) {\n      var _this3 = this;\n\n      if (!this.subtitlesTrack_) {\n        this.state = 'READY';\n        return;\n      }\n\n      this.saveTransferStats_(simpleSegment.stats); // the request was aborted\n\n      if (!this.pendingSegment_) {\n        this.state = 'READY';\n        this.mediaRequestsAborted += 1;\n        return;\n      }\n\n      if (error) {\n        if (error.code === REQUEST_ERRORS.TIMEOUT) {\n          this.handleTimeout_();\n        }\n\n        if (error.code === REQUEST_ERRORS.ABORTED) {\n          this.mediaRequestsAborted += 1;\n        } else {\n          this.mediaRequestsErrored += 1;\n        }\n\n        this.stopForError(error);\n        return;\n      }\n\n      var segmentInfo = this.pendingSegment_; // although the VTT segment loader bandwidth isn't really used, it's good to\n      // maintain functionality between segment loaders\n\n      this.saveBandwidthRelatedStats_(segmentInfo.duration, simpleSegment.stats); // if this request included a segment key, save that data in the cache\n\n      if (simpleSegment.key) {\n        this.segmentKey(simpleSegment.key, true);\n      }\n\n      this.state = 'APPENDING'; // used for tests\n\n      this.trigger('appending');\n      var segment = segmentInfo.segment;\n\n      if (segment.map) {\n        segment.map.bytes = simpleSegment.map.bytes;\n      }\n\n      segmentInfo.bytes = simpleSegment.bytes; // Make sure that vttjs has loaded, otherwise, wait till it finished loading\n\n      if (typeof window.WebVTT !== 'function' && this.subtitlesTrack_ && this.subtitlesTrack_.tech_) {\n        var loadHandler;\n\n        var errorHandler = function errorHandler() {\n          _this3.subtitlesTrack_.tech_.off('vttjsloaded', loadHandler);\n\n          _this3.stopForError({\n            message: 'Error loading vtt.js'\n          });\n\n          return;\n        };\n\n        loadHandler = function loadHandler() {\n          _this3.subtitlesTrack_.tech_.off('vttjserror', errorHandler);\n\n          _this3.segmentRequestFinished_(error, simpleSegment, result);\n        };\n\n        this.state = 'WAITING_ON_VTTJS';\n        this.subtitlesTrack_.tech_.one('vttjsloaded', loadHandler);\n        this.subtitlesTrack_.tech_.one('vttjserror', errorHandler);\n        return;\n      }\n\n      segment.requested = true;\n\n      try {\n        this.parseVTTCues_(segmentInfo);\n      } catch (e) {\n        this.stopForError({\n          message: e.message\n        });\n        return;\n      }\n\n      this.updateTimeMapping_(segmentInfo, this.syncController_.timelines[segmentInfo.timeline], this.playlist_);\n\n      if (segmentInfo.cues.length) {\n        segmentInfo.timingInfo = {\n          start: segmentInfo.cues[0].startTime,\n          end: segmentInfo.cues[segmentInfo.cues.length - 1].endTime\n        };\n      } else {\n        segmentInfo.timingInfo = {\n          start: segmentInfo.startOfSegment,\n          end: segmentInfo.startOfSegment + segmentInfo.duration\n        };\n      }\n\n      if (segmentInfo.isSyncRequest) {\n        this.trigger('syncinfoupdate');\n        this.pendingSegment_ = null;\n        this.state = 'READY';\n        return;\n      }\n\n      segmentInfo.byteLength = segmentInfo.bytes.byteLength;\n      this.mediaSecondsLoaded += segment.duration; // Create VTTCue instances for each cue in the new segment and add them to\n      // the subtitle track\n\n      segmentInfo.cues.forEach(function (cue) {\n        _this3.subtitlesTrack_.addCue(_this3.featuresNativeTextTracks_ ? new window.VTTCue(cue.startTime, cue.endTime, cue.text) : cue);\n      }); // Remove any duplicate cues from the subtitle track. The WebVTT spec allows\n      // cues to have identical time-intervals, but if the text is also identical\n      // we can safely assume it is a duplicate that can be removed (ex. when a cue\n      // \"overlaps\" VTT segments)\n\n      removeDuplicateCuesFromTrack(this.subtitlesTrack_);\n      this.handleAppendsDone_();\n    };\n\n    _proto.handleData_ = function handleData_() {// noop as we shouldn't be getting video/audio data captions\n      // that we do not support here.\n    };\n\n    _proto.updateTimingInfoEnd_ = function updateTimingInfoEnd_() {// noop\n    }\n    /**\n     * Uses the WebVTT parser to parse the segment response\n     *\n     * @param {Object} segmentInfo\n     *        a segment info object that describes the current segment\n     * @private\n     */\n    ;\n\n    _proto.parseVTTCues_ = function parseVTTCues_(segmentInfo) {\n      var decoder;\n      var decodeBytesToString = false;\n\n      if (typeof window.TextDecoder === 'function') {\n        decoder = new window.TextDecoder('utf8');\n      } else {\n        decoder = window.WebVTT.StringDecoder();\n        decodeBytesToString = true;\n      }\n\n      var parser = new window.WebVTT.Parser(window, window.vttjs, decoder);\n      segmentInfo.cues = [];\n      segmentInfo.timestampmap = {\n        MPEGTS: 0,\n        LOCAL: 0\n      };\n      parser.oncue = segmentInfo.cues.push.bind(segmentInfo.cues);\n\n      parser.ontimestampmap = function (map) {\n        segmentInfo.timestampmap = map;\n      };\n\n      parser.onparsingerror = function (error) {\n        videojs.log.warn('Error encountered when parsing cues: ' + error.message);\n      };\n\n      if (segmentInfo.segment.map) {\n        var mapData = segmentInfo.segment.map.bytes;\n\n        if (decodeBytesToString) {\n          mapData = uint8ToUtf8(mapData);\n        }\n\n        parser.parse(mapData);\n      }\n\n      var segmentData = segmentInfo.bytes;\n\n      if (decodeBytesToString) {\n        segmentData = uint8ToUtf8(segmentData);\n      }\n\n      parser.parse(segmentData);\n      parser.flush();\n    }\n    /**\n     * Updates the start and end times of any cues parsed by the WebVTT parser using\n     * the information parsed from the X-TIMESTAMP-MAP header and a TS to media time mapping\n     * from the SyncController\n     *\n     * @param {Object} segmentInfo\n     *        a segment info object that describes the current segment\n     * @param {Object} mappingObj\n     *        object containing a mapping from TS to media time\n     * @param {Object} playlist\n     *        the playlist object containing the segment\n     * @private\n     */\n    ;\n\n    _proto.updateTimeMapping_ = function updateTimeMapping_(segmentInfo, mappingObj, playlist) {\n      var segment = segmentInfo.segment;\n\n      if (!mappingObj) {\n        // If the sync controller does not have a mapping of TS to Media Time for the\n        // timeline, then we don't have enough information to update the cue\n        // start/end times\n        return;\n      }\n\n      if (!segmentInfo.cues.length) {\n        // If there are no cues, we also do not have enough information to figure out\n        // segment timing. Mark that the segment contains no cues so we don't re-request\n        // an empty segment.\n        segment.empty = true;\n        return;\n      }\n\n      var timestampmap = segmentInfo.timestampmap;\n      var diff = timestampmap.MPEGTS / clock_1 - timestampmap.LOCAL + mappingObj.mapping;\n      segmentInfo.cues.forEach(function (cue) {\n        // First convert cue time to TS time using the timestamp-map provided within the vtt\n        cue.startTime += diff;\n        cue.endTime += diff;\n      });\n\n      if (!playlist.syncInfo) {\n        var firstStart = segmentInfo.cues[0].startTime;\n        var lastStart = segmentInfo.cues[segmentInfo.cues.length - 1].startTime;\n        playlist.syncInfo = {\n          mediaSequence: playlist.mediaSequence + segmentInfo.mediaIndex,\n          time: Math.min(firstStart, lastStart - segment.duration)\n        };\n      }\n    };\n\n    return VTTSegmentLoader;\n  }(SegmentLoader);\n  /**\n   * @file ad-cue-tags.js\n   */\n\n  /**\n   * Searches for an ad cue that overlaps with the given mediaTime\n   *\n   * @param {Object} track\n   *        the track to find the cue for\n   *\n   * @param {number} mediaTime\n   *        the time to find the cue at\n   *\n   * @return {Object|null}\n   *         the found cue or null\n   */\n\n\n  var findAdCue = function findAdCue(track, mediaTime) {\n    var cues = track.cues;\n\n    for (var i = 0; i < cues.length; i++) {\n      var cue = cues[i];\n\n      if (mediaTime >= cue.adStartTime && mediaTime <= cue.adEndTime) {\n        return cue;\n      }\n    }\n\n    return null;\n  };\n\n  var updateAdCues = function updateAdCues(media, track, offset) {\n    if (offset === void 0) {\n      offset = 0;\n    }\n\n    if (!media.segments) {\n      return;\n    }\n\n    var mediaTime = offset;\n    var cue;\n\n    for (var i = 0; i < media.segments.length; i++) {\n      var segment = media.segments[i];\n\n      if (!cue) {\n        // Since the cues will span for at least the segment duration, adding a fudge\n        // factor of half segment duration will prevent duplicate cues from being\n        // created when timing info is not exact (e.g. cue start time initialized\n        // at 10.006677, but next call mediaTime is 10.003332 )\n        cue = findAdCue(track, mediaTime + segment.duration / 2);\n      }\n\n      if (cue) {\n        if ('cueIn' in segment) {\n          // Found a CUE-IN so end the cue\n          cue.endTime = mediaTime;\n          cue.adEndTime = mediaTime;\n          mediaTime += segment.duration;\n          cue = null;\n          continue;\n        }\n\n        if (mediaTime < cue.endTime) {\n          // Already processed this mediaTime for this cue\n          mediaTime += segment.duration;\n          continue;\n        } // otherwise extend cue until a CUE-IN is found\n\n\n        cue.endTime += segment.duration;\n      } else {\n        if ('cueOut' in segment) {\n          cue = new window.VTTCue(mediaTime, mediaTime + segment.duration, segment.cueOut);\n          cue.adStartTime = mediaTime; // Assumes tag format to be\n          // #EXT-X-CUE-OUT:30\n\n          cue.adEndTime = mediaTime + parseFloat(segment.cueOut);\n          track.addCue(cue);\n        }\n\n        if ('cueOutCont' in segment) {\n          // Entered into the middle of an ad cue\n          // Assumes tag formate to be\n          // #EXT-X-CUE-OUT-CONT:10/30\n          var _segment$cueOutCont$s = segment.cueOutCont.split('/').map(parseFloat),\n              adOffset = _segment$cueOutCont$s[0],\n              adTotal = _segment$cueOutCont$s[1];\n\n          cue = new window.VTTCue(mediaTime, mediaTime + segment.duration, '');\n          cue.adStartTime = mediaTime - adOffset;\n          cue.adEndTime = cue.adStartTime + adTotal;\n          track.addCue(cue);\n        }\n      }\n\n      mediaTime += segment.duration;\n    }\n  }; // synchronize expired playlist segments.\n  // the max media sequence diff is 48 hours of live stream\n  // content with two second segments. Anything larger than that\n  // will likely be invalid.\n\n\n  var MAX_MEDIA_SEQUENCE_DIFF_FOR_SYNC = 86400;\n  var syncPointStrategies = [// Stategy \"VOD\": Handle the VOD-case where the sync-point is *always*\n  //                the equivalence display-time 0 === segment-index 0\n  {\n    name: 'VOD',\n    run: function run(syncController, playlist, duration, currentTimeline, currentTime) {\n      if (duration !== Infinity) {\n        var syncPoint = {\n          time: 0,\n          segmentIndex: 0,\n          partIndex: null\n        };\n        return syncPoint;\n      }\n\n      return null;\n    }\n  }, // Stategy \"ProgramDateTime\": We have a program-date-time tag in this playlist\n  {\n    name: 'ProgramDateTime',\n    run: function run(syncController, playlist, duration, currentTimeline, currentTime) {\n      if (!Object.keys(syncController.timelineToDatetimeMappings).length) {\n        return null;\n      }\n\n      var syncPoint = null;\n      var lastDistance = null;\n      var partsAndSegments = getPartsAndSegments(playlist);\n      currentTime = currentTime || 0;\n\n      for (var i = 0; i < partsAndSegments.length; i++) {\n        // start from the end and loop backwards for live\n        // or start from the front and loop forwards for non-live\n        var index = playlist.endList || currentTime === 0 ? i : partsAndSegments.length - (i + 1);\n        var partAndSegment = partsAndSegments[index];\n        var segment = partAndSegment.segment;\n        var datetimeMapping = syncController.timelineToDatetimeMappings[segment.timeline];\n\n        if (!datetimeMapping || !segment.dateTimeObject) {\n          continue;\n        }\n\n        var segmentTime = segment.dateTimeObject.getTime() / 1000;\n        var start = segmentTime + datetimeMapping; // take part duration into account.\n\n        if (segment.parts && typeof partAndSegment.partIndex === 'number') {\n          for (var z = 0; z < partAndSegment.partIndex; z++) {\n            start += segment.parts[z].duration;\n          }\n        }\n\n        var distance = Math.abs(currentTime - start); // Once the distance begins to increase, or if distance is 0, we have passed\n        // currentTime and can stop looking for better candidates\n\n        if (lastDistance !== null && (distance === 0 || lastDistance < distance)) {\n          break;\n        }\n\n        lastDistance = distance;\n        syncPoint = {\n          time: start,\n          segmentIndex: partAndSegment.segmentIndex,\n          partIndex: partAndSegment.partIndex\n        };\n      }\n\n      return syncPoint;\n    }\n  }, // Stategy \"Segment\": We have a known time mapping for a timeline and a\n  //                    segment in the current timeline with timing data\n  {\n    name: 'Segment',\n    run: function run(syncController, playlist, duration, currentTimeline, currentTime) {\n      var syncPoint = null;\n      var lastDistance = null;\n      currentTime = currentTime || 0;\n      var partsAndSegments = getPartsAndSegments(playlist);\n\n      for (var i = 0; i < partsAndSegments.length; i++) {\n        // start from the end and loop backwards for live\n        // or start from the front and loop forwards for non-live\n        var index = playlist.endList || currentTime === 0 ? i : partsAndSegments.length - (i + 1);\n        var partAndSegment = partsAndSegments[index];\n        var segment = partAndSegment.segment;\n        var start = partAndSegment.part && partAndSegment.part.start || segment && segment.start;\n\n        if (segment.timeline === currentTimeline && typeof start !== 'undefined') {\n          var distance = Math.abs(currentTime - start); // Once the distance begins to increase, we have passed\n          // currentTime and can stop looking for better candidates\n\n          if (lastDistance !== null && lastDistance < distance) {\n            break;\n          }\n\n          if (!syncPoint || lastDistance === null || lastDistance >= distance) {\n            lastDistance = distance;\n            syncPoint = {\n              time: start,\n              segmentIndex: partAndSegment.segmentIndex,\n              partIndex: partAndSegment.partIndex\n            };\n          }\n        }\n      }\n\n      return syncPoint;\n    }\n  }, // Stategy \"Discontinuity\": We have a discontinuity with a known\n  //                          display-time\n  {\n    name: 'Discontinuity',\n    run: function run(syncController, playlist, duration, currentTimeline, currentTime) {\n      var syncPoint = null;\n      currentTime = currentTime || 0;\n\n      if (playlist.discontinuityStarts && playlist.discontinuityStarts.length) {\n        var lastDistance = null;\n\n        for (var i = 0; i < playlist.discontinuityStarts.length; i++) {\n          var segmentIndex = playlist.discontinuityStarts[i];\n          var discontinuity = playlist.discontinuitySequence + i + 1;\n          var discontinuitySync = syncController.discontinuities[discontinuity];\n\n          if (discontinuitySync) {\n            var distance = Math.abs(currentTime - discontinuitySync.time); // Once the distance begins to increase, we have passed\n            // currentTime and can stop looking for better candidates\n\n            if (lastDistance !== null && lastDistance < distance) {\n              break;\n            }\n\n            if (!syncPoint || lastDistance === null || lastDistance >= distance) {\n              lastDistance = distance;\n              syncPoint = {\n                time: discontinuitySync.time,\n                segmentIndex: segmentIndex,\n                partIndex: null\n              };\n            }\n          }\n        }\n      }\n\n      return syncPoint;\n    }\n  }, // Stategy \"Playlist\": We have a playlist with a known mapping of\n  //                     segment index to display time\n  {\n    name: 'Playlist',\n    run: function run(syncController, playlist, duration, currentTimeline, currentTime) {\n      if (playlist.syncInfo) {\n        var syncPoint = {\n          time: playlist.syncInfo.time,\n          segmentIndex: playlist.syncInfo.mediaSequence - playlist.mediaSequence,\n          partIndex: null\n        };\n        return syncPoint;\n      }\n\n      return null;\n    }\n  }];\n\n  var SyncController = /*#__PURE__*/function (_videojs$EventTarget) {\n    inheritsLoose(SyncController, _videojs$EventTarget);\n\n    function SyncController(options) {\n      var _this;\n\n      _this = _videojs$EventTarget.call(this) || this; // ...for synching across variants\n\n      _this.timelines = [];\n      _this.discontinuities = [];\n      _this.timelineToDatetimeMappings = {};\n      _this.logger_ = logger('SyncController');\n      return _this;\n    }\n    /**\n     * Find a sync-point for the playlist specified\n     *\n     * A sync-point is defined as a known mapping from display-time to\n     * a segment-index in the current playlist.\n     *\n     * @param {Playlist} playlist\n     *        The playlist that needs a sync-point\n     * @param {number} duration\n     *        Duration of the MediaSource (Infinite if playing a live source)\n     * @param {number} currentTimeline\n     *        The last timeline from which a segment was loaded\n     * @return {Object}\n     *          A sync-point object\n     */\n\n\n    var _proto = SyncController.prototype;\n\n    _proto.getSyncPoint = function getSyncPoint(playlist, duration, currentTimeline, currentTime) {\n      var syncPoints = this.runStrategies_(playlist, duration, currentTimeline, currentTime);\n\n      if (!syncPoints.length) {\n        // Signal that we need to attempt to get a sync-point manually\n        // by fetching a segment in the playlist and constructing\n        // a sync-point from that information\n        return null;\n      } // Now find the sync-point that is closest to the currentTime because\n      // that should result in the most accurate guess about which segment\n      // to fetch\n\n\n      return this.selectSyncPoint_(syncPoints, {\n        key: 'time',\n        value: currentTime\n      });\n    }\n    /**\n     * Calculate the amount of time that has expired off the playlist during playback\n     *\n     * @param {Playlist} playlist\n     *        Playlist object to calculate expired from\n     * @param {number} duration\n     *        Duration of the MediaSource (Infinity if playling a live source)\n     * @return {number|null}\n     *          The amount of time that has expired off the playlist during playback. Null\n     *          if no sync-points for the playlist can be found.\n     */\n    ;\n\n    _proto.getExpiredTime = function getExpiredTime(playlist, duration) {\n      if (!playlist || !playlist.segments) {\n        return null;\n      }\n\n      var syncPoints = this.runStrategies_(playlist, duration, playlist.discontinuitySequence, 0); // Without sync-points, there is not enough information to determine the expired time\n\n      if (!syncPoints.length) {\n        return null;\n      }\n\n      var syncPoint = this.selectSyncPoint_(syncPoints, {\n        key: 'segmentIndex',\n        value: 0\n      }); // If the sync-point is beyond the start of the playlist, we want to subtract the\n      // duration from index 0 to syncPoint.segmentIndex instead of adding.\n\n      if (syncPoint.segmentIndex > 0) {\n        syncPoint.time *= -1;\n      }\n\n      return Math.abs(syncPoint.time + sumDurations({\n        defaultDuration: playlist.targetDuration,\n        durationList: playlist.segments,\n        startIndex: syncPoint.segmentIndex,\n        endIndex: 0\n      }));\n    }\n    /**\n     * Runs each sync-point strategy and returns a list of sync-points returned by the\n     * strategies\n     *\n     * @private\n     * @param {Playlist} playlist\n     *        The playlist that needs a sync-point\n     * @param {number} duration\n     *        Duration of the MediaSource (Infinity if playing a live source)\n     * @param {number} currentTimeline\n     *        The last timeline from which a segment was loaded\n     * @return {Array}\n     *          A list of sync-point objects\n     */\n    ;\n\n    _proto.runStrategies_ = function runStrategies_(playlist, duration, currentTimeline, currentTime) {\n      var syncPoints = []; // Try to find a sync-point in by utilizing various strategies...\n\n      for (var i = 0; i < syncPointStrategies.length; i++) {\n        var strategy = syncPointStrategies[i];\n        var syncPoint = strategy.run(this, playlist, duration, currentTimeline, currentTime);\n\n        if (syncPoint) {\n          syncPoint.strategy = strategy.name;\n          syncPoints.push({\n            strategy: strategy.name,\n            syncPoint: syncPoint\n          });\n        }\n      }\n\n      return syncPoints;\n    }\n    /**\n     * Selects the sync-point nearest the specified target\n     *\n     * @private\n     * @param {Array} syncPoints\n     *        List of sync-points to select from\n     * @param {Object} target\n     *        Object specifying the property and value we are targeting\n     * @param {string} target.key\n     *        Specifies the property to target. Must be either 'time' or 'segmentIndex'\n     * @param {number} target.value\n     *        The value to target for the specified key.\n     * @return {Object}\n     *          The sync-point nearest the target\n     */\n    ;\n\n    _proto.selectSyncPoint_ = function selectSyncPoint_(syncPoints, target) {\n      var bestSyncPoint = syncPoints[0].syncPoint;\n      var bestDistance = Math.abs(syncPoints[0].syncPoint[target.key] - target.value);\n      var bestStrategy = syncPoints[0].strategy;\n\n      for (var i = 1; i < syncPoints.length; i++) {\n        var newDistance = Math.abs(syncPoints[i].syncPoint[target.key] - target.value);\n\n        if (newDistance < bestDistance) {\n          bestDistance = newDistance;\n          bestSyncPoint = syncPoints[i].syncPoint;\n          bestStrategy = syncPoints[i].strategy;\n        }\n      }\n\n      this.logger_(\"syncPoint for [\" + target.key + \": \" + target.value + \"] chosen with strategy\" + (\" [\" + bestStrategy + \"]: [time:\" + bestSyncPoint.time + \",\") + (\" segmentIndex:\" + bestSyncPoint.segmentIndex) + (typeof bestSyncPoint.partIndex === 'number' ? \",partIndex:\" + bestSyncPoint.partIndex : '') + ']');\n      return bestSyncPoint;\n    }\n    /**\n     * Save any meta-data present on the segments when segments leave\n     * the live window to the playlist to allow for synchronization at the\n     * playlist level later.\n     *\n     * @param {Playlist} oldPlaylist - The previous active playlist\n     * @param {Playlist} newPlaylist - The updated and most current playlist\n     */\n    ;\n\n    _proto.saveExpiredSegmentInfo = function saveExpiredSegmentInfo(oldPlaylist, newPlaylist) {\n      var mediaSequenceDiff = newPlaylist.mediaSequence - oldPlaylist.mediaSequence; // Ignore large media sequence gaps\n\n      if (mediaSequenceDiff > MAX_MEDIA_SEQUENCE_DIFF_FOR_SYNC) {\n        videojs.log.warn(\"Not saving expired segment info. Media sequence gap \" + mediaSequenceDiff + \" is too large.\");\n        return;\n      } // When a segment expires from the playlist and it has a start time\n      // save that information as a possible sync-point reference in future\n\n\n      for (var i = mediaSequenceDiff - 1; i >= 0; i--) {\n        var lastRemovedSegment = oldPlaylist.segments[i];\n\n        if (lastRemovedSegment && typeof lastRemovedSegment.start !== 'undefined') {\n          newPlaylist.syncInfo = {\n            mediaSequence: oldPlaylist.mediaSequence + i,\n            time: lastRemovedSegment.start\n          };\n          this.logger_(\"playlist refresh sync: [time:\" + newPlaylist.syncInfo.time + \",\" + (\" mediaSequence: \" + newPlaylist.syncInfo.mediaSequence + \"]\"));\n          this.trigger('syncinfoupdate');\n          break;\n        }\n      }\n    }\n    /**\n     * Save the mapping from playlist's ProgramDateTime to display. This should only happen\n     * before segments start to load.\n     *\n     * @param {Playlist} playlist - The currently active playlist\n     */\n    ;\n\n    _proto.setDateTimeMappingForStart = function setDateTimeMappingForStart(playlist) {\n      // It's possible for the playlist to be updated before playback starts, meaning time\n      // zero is not yet set. If, during these playlist refreshes, a discontinuity is\n      // crossed, then the old time zero mapping (for the prior timeline) would be retained\n      // unless the mappings are cleared.\n      this.timelineToDatetimeMappings = {};\n\n      if (playlist.segments && playlist.segments.length && playlist.segments[0].dateTimeObject) {\n        var firstSegment = playlist.segments[0];\n        var playlistTimestamp = firstSegment.dateTimeObject.getTime() / 1000;\n        this.timelineToDatetimeMappings[firstSegment.timeline] = -playlistTimestamp;\n      }\n    }\n    /**\n     * Calculates and saves timeline mappings, playlist sync info, and segment timing values\n     * based on the latest timing information.\n     *\n     * @param {Object} options\n     *        Options object\n     * @param {SegmentInfo} options.segmentInfo\n     *        The current active request information\n     * @param {boolean} options.shouldSaveTimelineMapping\n     *        If there's a timeline change, determines if the timeline mapping should be\n     *        saved for timeline mapping and program date time mappings.\n     */\n    ;\n\n    _proto.saveSegmentTimingInfo = function saveSegmentTimingInfo(_ref) {\n      var segmentInfo = _ref.segmentInfo,\n          shouldSaveTimelineMapping = _ref.shouldSaveTimelineMapping;\n      var didCalculateSegmentTimeMapping = this.calculateSegmentTimeMapping_(segmentInfo, segmentInfo.timingInfo, shouldSaveTimelineMapping);\n      var segment = segmentInfo.segment;\n\n      if (didCalculateSegmentTimeMapping) {\n        this.saveDiscontinuitySyncInfo_(segmentInfo); // If the playlist does not have sync information yet, record that information\n        // now with segment timing information\n\n        if (!segmentInfo.playlist.syncInfo) {\n          segmentInfo.playlist.syncInfo = {\n            mediaSequence: segmentInfo.playlist.mediaSequence + segmentInfo.mediaIndex,\n            time: segment.start\n          };\n        }\n      }\n\n      var dateTime = segment.dateTimeObject;\n\n      if (segment.discontinuity && shouldSaveTimelineMapping && dateTime) {\n        this.timelineToDatetimeMappings[segment.timeline] = -(dateTime.getTime() / 1000);\n      }\n    };\n\n    _proto.timestampOffsetForTimeline = function timestampOffsetForTimeline(timeline) {\n      if (typeof this.timelines[timeline] === 'undefined') {\n        return null;\n      }\n\n      return this.timelines[timeline].time;\n    };\n\n    _proto.mappingForTimeline = function mappingForTimeline(timeline) {\n      if (typeof this.timelines[timeline] === 'undefined') {\n        return null;\n      }\n\n      return this.timelines[timeline].mapping;\n    }\n    /**\n     * Use the \"media time\" for a segment to generate a mapping to \"display time\" and\n     * save that display time to the segment.\n     *\n     * @private\n     * @param {SegmentInfo} segmentInfo\n     *        The current active request information\n     * @param {Object} timingInfo\n     *        The start and end time of the current segment in \"media time\"\n     * @param {boolean} shouldSaveTimelineMapping\n     *        If there's a timeline change, determines if the timeline mapping should be\n     *        saved in timelines.\n     * @return {boolean}\n     *          Returns false if segment time mapping could not be calculated\n     */\n    ;\n\n    _proto.calculateSegmentTimeMapping_ = function calculateSegmentTimeMapping_(segmentInfo, timingInfo, shouldSaveTimelineMapping) {\n      // TODO: remove side effects\n      var segment = segmentInfo.segment;\n      var part = segmentInfo.part;\n      var mappingObj = this.timelines[segmentInfo.timeline];\n      var start;\n      var end;\n\n      if (typeof segmentInfo.timestampOffset === 'number') {\n        mappingObj = {\n          time: segmentInfo.startOfSegment,\n          mapping: segmentInfo.startOfSegment - timingInfo.start\n        };\n\n        if (shouldSaveTimelineMapping) {\n          this.timelines[segmentInfo.timeline] = mappingObj;\n          this.trigger('timestampoffset');\n          this.logger_(\"time mapping for timeline \" + segmentInfo.timeline + \": \" + (\"[time: \" + mappingObj.time + \"] [mapping: \" + mappingObj.mapping + \"]\"));\n        }\n\n        start = segmentInfo.startOfSegment;\n        end = timingInfo.end + mappingObj.mapping;\n      } else if (mappingObj) {\n        start = timingInfo.start + mappingObj.mapping;\n        end = timingInfo.end + mappingObj.mapping;\n      } else {\n        return false;\n      }\n\n      if (part) {\n        part.start = start;\n        part.end = end;\n      } // If we don't have a segment start yet or the start value we got\n      // is less than our current segment.start value, save a new start value.\n      // We have to do this because parts will have segment timing info saved\n      // multiple times and we want segment start to be the earliest part start\n      // value for that segment.\n\n\n      if (!segment.start || start < segment.start) {\n        segment.start = start;\n      }\n\n      segment.end = end;\n      return true;\n    }\n    /**\n     * Each time we have discontinuity in the playlist, attempt to calculate the location\n     * in display of the start of the discontinuity and save that. We also save an accuracy\n     * value so that we save values with the most accuracy (closest to 0.)\n     *\n     * @private\n     * @param {SegmentInfo} segmentInfo - The current active request information\n     */\n    ;\n\n    _proto.saveDiscontinuitySyncInfo_ = function saveDiscontinuitySyncInfo_(segmentInfo) {\n      var playlist = segmentInfo.playlist;\n      var segment = segmentInfo.segment; // If the current segment is a discontinuity then we know exactly where\n      // the start of the range and it's accuracy is 0 (greater accuracy values\n      // mean more approximation)\n\n      if (segment.discontinuity) {\n        this.discontinuities[segment.timeline] = {\n          time: segment.start,\n          accuracy: 0\n        };\n      } else if (playlist.discontinuityStarts && playlist.discontinuityStarts.length) {\n        // Search for future discontinuities that we can provide better timing\n        // information for and save that information for sync purposes\n        for (var i = 0; i < playlist.discontinuityStarts.length; i++) {\n          var segmentIndex = playlist.discontinuityStarts[i];\n          var discontinuity = playlist.discontinuitySequence + i + 1;\n          var mediaIndexDiff = segmentIndex - segmentInfo.mediaIndex;\n          var accuracy = Math.abs(mediaIndexDiff);\n\n          if (!this.discontinuities[discontinuity] || this.discontinuities[discontinuity].accuracy > accuracy) {\n            var time = void 0;\n\n            if (mediaIndexDiff < 0) {\n              time = segment.start - sumDurations({\n                defaultDuration: playlist.targetDuration,\n                durationList: playlist.segments,\n                startIndex: segmentInfo.mediaIndex,\n                endIndex: segmentIndex\n              });\n            } else {\n              time = segment.end + sumDurations({\n                defaultDuration: playlist.targetDuration,\n                durationList: playlist.segments,\n                startIndex: segmentInfo.mediaIndex + 1,\n                endIndex: segmentIndex\n              });\n            }\n\n            this.discontinuities[discontinuity] = {\n              time: time,\n              accuracy: accuracy\n            };\n          }\n        }\n      }\n    };\n\n    _proto.dispose = function dispose() {\n      this.trigger('dispose');\n      this.off();\n    };\n\n    return SyncController;\n  }(videojs.EventTarget);\n  /**\n   * The TimelineChangeController acts as a source for segment loaders to listen for and\n   * keep track of latest and pending timeline changes. This is useful to ensure proper\n   * sync, as each loader may need to make a consideration for what timeline the other\n   * loader is on before making changes which could impact the other loader's media.\n   *\n   * @class TimelineChangeController\n   * @extends videojs.EventTarget\n   */\n\n\n  var TimelineChangeController = /*#__PURE__*/function (_videojs$EventTarget) {\n    inheritsLoose(TimelineChangeController, _videojs$EventTarget);\n\n    function TimelineChangeController() {\n      var _this;\n\n      _this = _videojs$EventTarget.call(this) || this;\n      _this.pendingTimelineChanges_ = {};\n      _this.lastTimelineChanges_ = {};\n      return _this;\n    }\n\n    var _proto = TimelineChangeController.prototype;\n\n    _proto.clearPendingTimelineChange = function clearPendingTimelineChange(type) {\n      this.pendingTimelineChanges_[type] = null;\n      this.trigger('pendingtimelinechange');\n    };\n\n    _proto.pendingTimelineChange = function pendingTimelineChange(_ref) {\n      var type = _ref.type,\n          from = _ref.from,\n          to = _ref.to;\n\n      if (typeof from === 'number' && typeof to === 'number') {\n        this.pendingTimelineChanges_[type] = {\n          type: type,\n          from: from,\n          to: to\n        };\n        this.trigger('pendingtimelinechange');\n      }\n\n      return this.pendingTimelineChanges_[type];\n    };\n\n    _proto.lastTimelineChange = function lastTimelineChange(_ref2) {\n      var type = _ref2.type,\n          from = _ref2.from,\n          to = _ref2.to;\n\n      if (typeof from === 'number' && typeof to === 'number') {\n        this.lastTimelineChanges_[type] = {\n          type: type,\n          from: from,\n          to: to\n        };\n        delete this.pendingTimelineChanges_[type];\n        this.trigger('timelinechange');\n      }\n\n      return this.lastTimelineChanges_[type];\n    };\n\n    _proto.dispose = function dispose() {\n      this.trigger('dispose');\n      this.pendingTimelineChanges_ = {};\n      this.lastTimelineChanges_ = {};\n      this.off();\n    };\n\n    return TimelineChangeController;\n  }(videojs.EventTarget);\n  /* rollup-plugin-worker-factory start for worker!/Users/abarstow/videojs/http-streaming/src/decrypter-worker.js */\n\n\n  var workerCode = transform(getWorkerString(function () {\n    var commonjsGlobal = typeof globalThis !== 'undefined' ? globalThis : typeof window !== 'undefined' ? window : typeof global !== 'undefined' ? global : typeof self !== 'undefined' ? self : {};\n\n    function createCommonjsModule(fn, basedir, module) {\n      return module = {\n        path: basedir,\n        exports: {},\n        require: function require(path, base) {\n          return commonjsRequire(path, base === undefined || base === null ? module.path : base);\n        }\n      }, fn(module, module.exports), module.exports;\n    }\n\n    function commonjsRequire() {\n      throw new Error('Dynamic requires are not currently supported by @rollup/plugin-commonjs');\n    }\n\n    var createClass = createCommonjsModule(function (module) {\n      function _defineProperties(target, props) {\n        for (var i = 0; i < props.length; i++) {\n          var descriptor = props[i];\n          descriptor.enumerable = descriptor.enumerable || false;\n          descriptor.configurable = true;\n          if (\"value\" in descriptor) descriptor.writable = true;\n          Object.defineProperty(target, descriptor.key, descriptor);\n        }\n      }\n\n      function _createClass(Constructor, protoProps, staticProps) {\n        if (protoProps) _defineProperties(Constructor.prototype, protoProps);\n        if (staticProps) _defineProperties(Constructor, staticProps);\n        return Constructor;\n      }\n\n      module.exports = _createClass;\n      module.exports[\"default\"] = module.exports, module.exports.__esModule = true;\n    });\n    var setPrototypeOf = createCommonjsModule(function (module) {\n      function _setPrototypeOf(o, p) {\n        module.exports = _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) {\n          o.__proto__ = p;\n          return o;\n        };\n\n        module.exports[\"default\"] = module.exports, module.exports.__esModule = true;\n        return _setPrototypeOf(o, p);\n      }\n\n      module.exports = _setPrototypeOf;\n      module.exports[\"default\"] = module.exports, module.exports.__esModule = true;\n    });\n    var inheritsLoose = createCommonjsModule(function (module) {\n      function _inheritsLoose(subClass, superClass) {\n        subClass.prototype = Object.create(superClass.prototype);\n        subClass.prototype.constructor = subClass;\n        setPrototypeOf(subClass, superClass);\n      }\n\n      module.exports = _inheritsLoose;\n      module.exports[\"default\"] = module.exports, module.exports.__esModule = true;\n    });\n    /**\n     * @file stream.js\n     */\n\n    /**\n     * A lightweight readable stream implemention that handles event dispatching.\n     *\n     * @class Stream\n     */\n\n    var Stream = /*#__PURE__*/function () {\n      function Stream() {\n        this.listeners = {};\n      }\n      /**\n       * Add a listener for a specified event type.\n       *\n       * @param {string} type the event name\n       * @param {Function} listener the callback to be invoked when an event of\n       * the specified type occurs\n       */\n\n\n      var _proto = Stream.prototype;\n\n      _proto.on = function on(type, listener) {\n        if (!this.listeners[type]) {\n          this.listeners[type] = [];\n        }\n\n        this.listeners[type].push(listener);\n      }\n      /**\n       * Remove a listener for a specified event type.\n       *\n       * @param {string} type the event name\n       * @param {Function} listener  a function previously registered for this\n       * type of event through `on`\n       * @return {boolean} if we could turn it off or not\n       */\n      ;\n\n      _proto.off = function off(type, listener) {\n        if (!this.listeners[type]) {\n          return false;\n        }\n\n        var index = this.listeners[type].indexOf(listener); // TODO: which is better?\n        // In Video.js we slice listener functions\n        // on trigger so that it does not mess up the order\n        // while we loop through.\n        //\n        // Here we slice on off so that the loop in trigger\n        // can continue using it's old reference to loop without\n        // messing up the order.\n\n        this.listeners[type] = this.listeners[type].slice(0);\n        this.listeners[type].splice(index, 1);\n        return index > -1;\n      }\n      /**\n       * Trigger an event of the specified type on this stream. Any additional\n       * arguments to this function are passed as parameters to event listeners.\n       *\n       * @param {string} type the event name\n       */\n      ;\n\n      _proto.trigger = function trigger(type) {\n        var callbacks = this.listeners[type];\n\n        if (!callbacks) {\n          return;\n        } // Slicing the arguments on every invocation of this method\n        // can add a significant amount of overhead. Avoid the\n        // intermediate object creation for the common case of a\n        // single callback argument\n\n\n        if (arguments.length === 2) {\n          var length = callbacks.length;\n\n          for (var i = 0; i < length; ++i) {\n            callbacks[i].call(this, arguments[1]);\n          }\n        } else {\n          var args = Array.prototype.slice.call(arguments, 1);\n          var _length = callbacks.length;\n\n          for (var _i = 0; _i < _length; ++_i) {\n            callbacks[_i].apply(this, args);\n          }\n        }\n      }\n      /**\n       * Destroys the stream and cleans up.\n       */\n      ;\n\n      _proto.dispose = function dispose() {\n        this.listeners = {};\n      }\n      /**\n       * Forwards all `data` events on this stream to the destination stream. The\n       * destination stream should provide a method `push` to receive the data\n       * events as they arrive.\n       *\n       * @param {Stream} destination the stream that will receive all `data` events\n       * @see http://nodejs.org/api/stream.html#stream_readable_pipe_destination_options\n       */\n      ;\n\n      _proto.pipe = function pipe(destination) {\n        this.on('data', function (data) {\n          destination.push(data);\n        });\n      };\n\n      return Stream;\n    }();\n    /*! @name pkcs7 @version 1.0.4 @license Apache-2.0 */\n\n    /**\n     * Returns the subarray of a Uint8Array without PKCS#7 padding.\n     *\n     * @param padded {Uint8Array} unencrypted bytes that have been padded\n     * @return {Uint8Array} the unpadded bytes\n     * @see http://tools.ietf.org/html/rfc5652\n     */\n\n\n    function unpad(padded) {\n      return padded.subarray(0, padded.byteLength - padded[padded.byteLength - 1]);\n    }\n    /*! @name aes-decrypter @version 3.1.3 @license Apache-2.0 */\n\n    /**\n     * @file aes.js\n     *\n     * This file contains an adaptation of the AES decryption algorithm\n     * from the Standford Javascript Cryptography Library. That work is\n     * covered by the following copyright and permissions notice:\n     *\n     * Copyright 2009-2010 Emily Stark, Mike Hamburg, Dan Boneh.\n     * All rights reserved.\n     *\n     * Redistribution and use in source and binary forms, with or without\n     * modification, are permitted provided that the following conditions are\n     * met:\n     *\n     * 1. Redistributions of source code must retain the above copyright\n     *    notice, this list of conditions and the following disclaimer.\n     *\n     * 2. Redistributions in binary form must reproduce the above\n     *    copyright notice, this list of conditions and the following\n     *    disclaimer in the documentation and/or other materials provided\n     *    with the distribution.\n     *\n     * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR\n     * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n     * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE\n     * DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> OR CONTRIBUTORS BE\n     * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR\n     * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF\n     * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR\n     * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n     * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE\n     * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN\n     * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.\n     *\n     * The views and conclusions contained in the software and documentation\n     * are those of the authors and should not be interpreted as representing\n     * official policies, either expressed or implied, of the authors.\n     */\n\n    /**\n     * Expand the S-box tables.\n     *\n     * @private\n     */\n\n\n    var precompute = function precompute() {\n      var tables = [[[], [], [], [], []], [[], [], [], [], []]];\n      var encTable = tables[0];\n      var decTable = tables[1];\n      var sbox = encTable[4];\n      var sboxInv = decTable[4];\n      var i;\n      var x;\n      var xInv;\n      var d = [];\n      var th = [];\n      var x2;\n      var x4;\n      var x8;\n      var s;\n      var tEnc;\n      var tDec; // Compute double and third tables\n\n      for (i = 0; i < 256; i++) {\n        th[(d[i] = i << 1 ^ (i >> 7) * 283) ^ i] = i;\n      }\n\n      for (x = xInv = 0; !sbox[x]; x ^= x2 || 1, xInv = th[xInv] || 1) {\n        // Compute sbox\n        s = xInv ^ xInv << 1 ^ xInv << 2 ^ xInv << 3 ^ xInv << 4;\n        s = s >> 8 ^ s & 255 ^ 99;\n        sbox[x] = s;\n        sboxInv[s] = x; // Compute MixColumns\n\n        x8 = d[x4 = d[x2 = d[x]]];\n        tDec = x8 * 0x1010101 ^ x4 * 0x10001 ^ x2 * 0x101 ^ x * 0x1010100;\n        tEnc = d[s] * 0x101 ^ s * 0x1010100;\n\n        for (i = 0; i < 4; i++) {\n          encTable[i][x] = tEnc = tEnc << 24 ^ tEnc >>> 8;\n          decTable[i][s] = tDec = tDec << 24 ^ tDec >>> 8;\n        }\n      } // Compactify. Considerable speedup on Firefox.\n\n\n      for (i = 0; i < 5; i++) {\n        encTable[i] = encTable[i].slice(0);\n        decTable[i] = decTable[i].slice(0);\n      }\n\n      return tables;\n    };\n\n    var aesTables = null;\n    /**\n     * Schedule out an AES key for both encryption and decryption. This\n     * is a low-level class. Use a cipher mode to do bulk encryption.\n     *\n     * @class AES\n     * @param key {Array} The key as an array of 4, 6 or 8 words.\n     */\n\n    var AES = /*#__PURE__*/function () {\n      function AES(key) {\n        /**\n        * The expanded S-box and inverse S-box tables. These will be computed\n        * on the client so that we don't have to send them down the wire.\n        *\n        * There are two tables, _tables[0] is for encryption and\n        * _tables[1] is for decryption.\n        *\n        * The first 4 sub-tables are the expanded S-box with MixColumns. The\n        * last (_tables[01][4]) is the S-box itself.\n        *\n        * @private\n        */\n        // if we have yet to precompute the S-box tables\n        // do so now\n        if (!aesTables) {\n          aesTables = precompute();\n        } // then make a copy of that object for use\n\n\n        this._tables = [[aesTables[0][0].slice(), aesTables[0][1].slice(), aesTables[0][2].slice(), aesTables[0][3].slice(), aesTables[0][4].slice()], [aesTables[1][0].slice(), aesTables[1][1].slice(), aesTables[1][2].slice(), aesTables[1][3].slice(), aesTables[1][4].slice()]];\n        var i;\n        var j;\n        var tmp;\n        var sbox = this._tables[0][4];\n        var decTable = this._tables[1];\n        var keyLen = key.length;\n        var rcon = 1;\n\n        if (keyLen !== 4 && keyLen !== 6 && keyLen !== 8) {\n          throw new Error('Invalid aes key size');\n        }\n\n        var encKey = key.slice(0);\n        var decKey = [];\n        this._key = [encKey, decKey]; // schedule encryption keys\n\n        for (i = keyLen; i < 4 * keyLen + 28; i++) {\n          tmp = encKey[i - 1]; // apply sbox\n\n          if (i % keyLen === 0 || keyLen === 8 && i % keyLen === 4) {\n            tmp = sbox[tmp >>> 24] << 24 ^ sbox[tmp >> 16 & 255] << 16 ^ sbox[tmp >> 8 & 255] << 8 ^ sbox[tmp & 255]; // shift rows and add rcon\n\n            if (i % keyLen === 0) {\n              tmp = tmp << 8 ^ tmp >>> 24 ^ rcon << 24;\n              rcon = rcon << 1 ^ (rcon >> 7) * 283;\n            }\n          }\n\n          encKey[i] = encKey[i - keyLen] ^ tmp;\n        } // schedule decryption keys\n\n\n        for (j = 0; i; j++, i--) {\n          tmp = encKey[j & 3 ? i : i - 4];\n\n          if (i <= 4 || j < 4) {\n            decKey[j] = tmp;\n          } else {\n            decKey[j] = decTable[0][sbox[tmp >>> 24]] ^ decTable[1][sbox[tmp >> 16 & 255]] ^ decTable[2][sbox[tmp >> 8 & 255]] ^ decTable[3][sbox[tmp & 255]];\n          }\n        }\n      }\n      /**\n       * Decrypt 16 bytes, specified as four 32-bit words.\n       *\n       * @param {number} encrypted0 the first word to decrypt\n       * @param {number} encrypted1 the second word to decrypt\n       * @param {number} encrypted2 the third word to decrypt\n       * @param {number} encrypted3 the fourth word to decrypt\n       * @param {Int32Array} out the array to write the decrypted words\n       * into\n       * @param {number} offset the offset into the output array to start\n       * writing results\n       * @return {Array} The plaintext.\n       */\n\n\n      var _proto = AES.prototype;\n\n      _proto.decrypt = function decrypt(encrypted0, encrypted1, encrypted2, encrypted3, out, offset) {\n        var key = this._key[1]; // state variables a,b,c,d are loaded with pre-whitened data\n\n        var a = encrypted0 ^ key[0];\n        var b = encrypted3 ^ key[1];\n        var c = encrypted2 ^ key[2];\n        var d = encrypted1 ^ key[3];\n        var a2;\n        var b2;\n        var c2; // key.length === 2 ?\n\n        var nInnerRounds = key.length / 4 - 2;\n        var i;\n        var kIndex = 4;\n        var table = this._tables[1]; // load up the tables\n\n        var table0 = table[0];\n        var table1 = table[1];\n        var table2 = table[2];\n        var table3 = table[3];\n        var sbox = table[4]; // Inner rounds. Cribbed from OpenSSL.\n\n        for (i = 0; i < nInnerRounds; i++) {\n          a2 = table0[a >>> 24] ^ table1[b >> 16 & 255] ^ table2[c >> 8 & 255] ^ table3[d & 255] ^ key[kIndex];\n          b2 = table0[b >>> 24] ^ table1[c >> 16 & 255] ^ table2[d >> 8 & 255] ^ table3[a & 255] ^ key[kIndex + 1];\n          c2 = table0[c >>> 24] ^ table1[d >> 16 & 255] ^ table2[a >> 8 & 255] ^ table3[b & 255] ^ key[kIndex + 2];\n          d = table0[d >>> 24] ^ table1[a >> 16 & 255] ^ table2[b >> 8 & 255] ^ table3[c & 255] ^ key[kIndex + 3];\n          kIndex += 4;\n          a = a2;\n          b = b2;\n          c = c2;\n        } // Last round.\n\n\n        for (i = 0; i < 4; i++) {\n          out[(3 & -i) + offset] = sbox[a >>> 24] << 24 ^ sbox[b >> 16 & 255] << 16 ^ sbox[c >> 8 & 255] << 8 ^ sbox[d & 255] ^ key[kIndex++];\n          a2 = a;\n          a = b;\n          b = c;\n          c = d;\n          d = a2;\n        }\n      };\n\n      return AES;\n    }();\n    /**\n     * A wrapper around the Stream class to use setTimeout\n     * and run stream \"jobs\" Asynchronously\n     *\n     * @class AsyncStream\n     * @extends Stream\n     */\n\n\n    var AsyncStream = /*#__PURE__*/function (_Stream) {\n      inheritsLoose(AsyncStream, _Stream);\n\n      function AsyncStream() {\n        var _this;\n\n        _this = _Stream.call(this, Stream) || this;\n        _this.jobs = [];\n        _this.delay = 1;\n        _this.timeout_ = null;\n        return _this;\n      }\n      /**\n       * process an async job\n       *\n       * @private\n       */\n\n\n      var _proto = AsyncStream.prototype;\n\n      _proto.processJob_ = function processJob_() {\n        this.jobs.shift()();\n\n        if (this.jobs.length) {\n          this.timeout_ = setTimeout(this.processJob_.bind(this), this.delay);\n        } else {\n          this.timeout_ = null;\n        }\n      }\n      /**\n       * push a job into the stream\n       *\n       * @param {Function} job the job to push into the stream\n       */\n      ;\n\n      _proto.push = function push(job) {\n        this.jobs.push(job);\n\n        if (!this.timeout_) {\n          this.timeout_ = setTimeout(this.processJob_.bind(this), this.delay);\n        }\n      };\n\n      return AsyncStream;\n    }(Stream);\n    /**\n     * Convert network-order (big-endian) bytes into their little-endian\n     * representation.\n     */\n\n\n    var ntoh = function ntoh(word) {\n      return word << 24 | (word & 0xff00) << 8 | (word & 0xff0000) >> 8 | word >>> 24;\n    };\n    /**\n     * Decrypt bytes using AES-128 with CBC and PKCS#7 padding.\n     *\n     * @param {Uint8Array} encrypted the encrypted bytes\n     * @param {Uint32Array} key the bytes of the decryption key\n     * @param {Uint32Array} initVector the initialization vector (IV) to\n     * use for the first round of CBC.\n     * @return {Uint8Array} the decrypted bytes\n     *\n     * @see http://en.wikipedia.org/wiki/Advanced_Encryption_Standard\n     * @see http://en.wikipedia.org/wiki/Block_cipher_mode_of_operation#Cipher_Block_Chaining_.28CBC.29\n     * @see https://tools.ietf.org/html/rfc2315\n     */\n\n\n    var decrypt = function decrypt(encrypted, key, initVector) {\n      // word-level access to the encrypted bytes\n      var encrypted32 = new Int32Array(encrypted.buffer, encrypted.byteOffset, encrypted.byteLength >> 2);\n      var decipher = new AES(Array.prototype.slice.call(key)); // byte and word-level access for the decrypted output\n\n      var decrypted = new Uint8Array(encrypted.byteLength);\n      var decrypted32 = new Int32Array(decrypted.buffer); // temporary variables for working with the IV, encrypted, and\n      // decrypted data\n\n      var init0;\n      var init1;\n      var init2;\n      var init3;\n      var encrypted0;\n      var encrypted1;\n      var encrypted2;\n      var encrypted3; // iteration variable\n\n      var wordIx; // pull out the words of the IV to ensure we don't modify the\n      // passed-in reference and easier access\n\n      init0 = initVector[0];\n      init1 = initVector[1];\n      init2 = initVector[2];\n      init3 = initVector[3]; // decrypt four word sequences, applying cipher-block chaining (CBC)\n      // to each decrypted block\n\n      for (wordIx = 0; wordIx < encrypted32.length; wordIx += 4) {\n        // convert big-endian (network order) words into little-endian\n        // (javascript order)\n        encrypted0 = ntoh(encrypted32[wordIx]);\n        encrypted1 = ntoh(encrypted32[wordIx + 1]);\n        encrypted2 = ntoh(encrypted32[wordIx + 2]);\n        encrypted3 = ntoh(encrypted32[wordIx + 3]); // decrypt the block\n\n        decipher.decrypt(encrypted0, encrypted1, encrypted2, encrypted3, decrypted32, wordIx); // XOR with the IV, and restore network byte-order to obtain the\n        // plaintext\n\n        decrypted32[wordIx] = ntoh(decrypted32[wordIx] ^ init0);\n        decrypted32[wordIx + 1] = ntoh(decrypted32[wordIx + 1] ^ init1);\n        decrypted32[wordIx + 2] = ntoh(decrypted32[wordIx + 2] ^ init2);\n        decrypted32[wordIx + 3] = ntoh(decrypted32[wordIx + 3] ^ init3); // setup the IV for the next round\n\n        init0 = encrypted0;\n        init1 = encrypted1;\n        init2 = encrypted2;\n        init3 = encrypted3;\n      }\n\n      return decrypted;\n    };\n    /**\n     * The `Decrypter` class that manages decryption of AES\n     * data through `AsyncStream` objects and the `decrypt`\n     * function\n     *\n     * @param {Uint8Array} encrypted the encrypted bytes\n     * @param {Uint32Array} key the bytes of the decryption key\n     * @param {Uint32Array} initVector the initialization vector (IV) to\n     * @param {Function} done the function to run when done\n     * @class Decrypter\n     */\n\n\n    var Decrypter = /*#__PURE__*/function () {\n      function Decrypter(encrypted, key, initVector, done) {\n        var step = Decrypter.STEP;\n        var encrypted32 = new Int32Array(encrypted.buffer);\n        var decrypted = new Uint8Array(encrypted.byteLength);\n        var i = 0;\n        this.asyncStream_ = new AsyncStream(); // split up the encryption job and do the individual chunks asynchronously\n\n        this.asyncStream_.push(this.decryptChunk_(encrypted32.subarray(i, i + step), key, initVector, decrypted));\n\n        for (i = step; i < encrypted32.length; i += step) {\n          initVector = new Uint32Array([ntoh(encrypted32[i - 4]), ntoh(encrypted32[i - 3]), ntoh(encrypted32[i - 2]), ntoh(encrypted32[i - 1])]);\n          this.asyncStream_.push(this.decryptChunk_(encrypted32.subarray(i, i + step), key, initVector, decrypted));\n        } // invoke the done() callback when everything is finished\n\n\n        this.asyncStream_.push(function () {\n          // remove pkcs#7 padding from the decrypted bytes\n          done(null, unpad(decrypted));\n        });\n      }\n      /**\n       * a getter for step the maximum number of bytes to process at one time\n       *\n       * @return {number} the value of step 32000\n       */\n\n\n      var _proto = Decrypter.prototype;\n      /**\n       * @private\n       */\n\n      _proto.decryptChunk_ = function decryptChunk_(encrypted, key, initVector, decrypted) {\n        return function () {\n          var bytes = decrypt(encrypted, key, initVector);\n          decrypted.set(bytes, encrypted.byteOffset);\n        };\n      };\n\n      createClass(Decrypter, null, [{\n        key: \"STEP\",\n        get: function get() {\n          // 4 * 8000;\n          return 32000;\n        }\n      }]);\n      return Decrypter;\n    }();\n\n    var win;\n\n    if (typeof window !== \"undefined\") {\n      win = window;\n    } else if (typeof commonjsGlobal !== \"undefined\") {\n      win = commonjsGlobal;\n    } else if (typeof self !== \"undefined\") {\n      win = self;\n    } else {\n      win = {};\n    }\n\n    var window_1 = win;\n\n    var isArrayBufferView = function isArrayBufferView(obj) {\n      if (ArrayBuffer.isView === 'function') {\n        return ArrayBuffer.isView(obj);\n      }\n\n      return obj && obj.buffer instanceof ArrayBuffer;\n    };\n\n    var BigInt = window_1.BigInt || Number;\n    [BigInt('0x1'), BigInt('0x100'), BigInt('0x10000'), BigInt('0x1000000'), BigInt('0x100000000'), BigInt('0x10000000000'), BigInt('0x1000000000000'), BigInt('0x100000000000000'), BigInt('0x10000000000000000')];\n    /**\n     * Creates an object for sending to a web worker modifying properties that are TypedArrays\n     * into a new object with seperated properties for the buffer, byteOffset, and byteLength.\n     *\n     * @param {Object} message\n     *        Object of properties and values to send to the web worker\n     * @return {Object}\n     *         Modified message with TypedArray values expanded\n     * @function createTransferableMessage\n     */\n\n\n    var createTransferableMessage = function createTransferableMessage(message) {\n      var transferable = {};\n      Object.keys(message).forEach(function (key) {\n        var value = message[key];\n\n        if (isArrayBufferView(value)) {\n          transferable[key] = {\n            bytes: value.buffer,\n            byteOffset: value.byteOffset,\n            byteLength: value.byteLength\n          };\n        } else {\n          transferable[key] = value;\n        }\n      });\n      return transferable;\n    };\n    /* global self */\n\n    /**\n     * Our web worker interface so that things can talk to aes-decrypter\n     * that will be running in a web worker. the scope is passed to this by\n     * webworkify.\n     */\n\n\n    self.onmessage = function (event) {\n      var data = event.data;\n      var encrypted = new Uint8Array(data.encrypted.bytes, data.encrypted.byteOffset, data.encrypted.byteLength);\n      var key = new Uint32Array(data.key.bytes, data.key.byteOffset, data.key.byteLength / 4);\n      var iv = new Uint32Array(data.iv.bytes, data.iv.byteOffset, data.iv.byteLength / 4);\n      /* eslint-disable no-new, handle-callback-err */\n\n      new Decrypter(encrypted, key, iv, function (err, bytes) {\n        self.postMessage(createTransferableMessage({\n          source: data.source,\n          decrypted: bytes\n        }), [bytes.buffer]);\n      });\n      /* eslint-enable */\n    };\n  }));\n  var Decrypter = factory(workerCode);\n  /* rollup-plugin-worker-factory end for worker!/Users/abarstow/videojs/http-streaming/src/decrypter-worker.js */\n\n  /**\n   * Convert the properties of an HLS track into an audioTrackKind.\n   *\n   * @private\n   */\n\n  var audioTrackKind_ = function audioTrackKind_(properties) {\n    var kind = properties[\"default\"] ? 'main' : 'alternative';\n\n    if (properties.characteristics && properties.characteristics.indexOf('public.accessibility.describes-video') >= 0) {\n      kind = 'main-desc';\n    }\n\n    return kind;\n  };\n  /**\n   * Pause provided segment loader and playlist loader if active\n   *\n   * @param {SegmentLoader} segmentLoader\n   *        SegmentLoader to pause\n   * @param {Object} mediaType\n   *        Active media type\n   * @function stopLoaders\n   */\n\n\n  var stopLoaders = function stopLoaders(segmentLoader, mediaType) {\n    segmentLoader.abort();\n    segmentLoader.pause();\n\n    if (mediaType && mediaType.activePlaylistLoader) {\n      mediaType.activePlaylistLoader.pause();\n      mediaType.activePlaylistLoader = null;\n    }\n  };\n  /**\n   * Start loading provided segment loader and playlist loader\n   *\n   * @param {PlaylistLoader} playlistLoader\n   *        PlaylistLoader to start loading\n   * @param {Object} mediaType\n   *        Active media type\n   * @function startLoaders\n   */\n\n\n  var startLoaders = function startLoaders(playlistLoader, mediaType) {\n    // Segment loader will be started after `loadedmetadata` or `loadedplaylist` from the\n    // playlist loader\n    mediaType.activePlaylistLoader = playlistLoader;\n    playlistLoader.load();\n  };\n  /**\n   * Returns a function to be called when the media group changes. It performs a\n   * non-destructive (preserve the buffer) resync of the SegmentLoader. This is because a\n   * change of group is merely a rendition switch of the same content at another encoding,\n   * rather than a change of content, such as switching audio from English to Spanish.\n   *\n   * @param {string} type\n   *        MediaGroup type\n   * @param {Object} settings\n   *        Object containing required information for media groups\n   * @return {Function}\n   *         Handler for a non-destructive resync of SegmentLoader when the active media\n   *         group changes.\n   * @function onGroupChanged\n   */\n\n\n  var onGroupChanged = function onGroupChanged(type, settings) {\n    return function () {\n      var _settings$segmentLoad = settings.segmentLoaders,\n          segmentLoader = _settings$segmentLoad[type],\n          mainSegmentLoader = _settings$segmentLoad.main,\n          mediaType = settings.mediaTypes[type];\n      var activeTrack = mediaType.activeTrack();\n      var activeGroup = mediaType.getActiveGroup();\n      var previousActiveLoader = mediaType.activePlaylistLoader;\n      var lastGroup = mediaType.lastGroup_; // the group did not change do nothing\n\n      if (activeGroup && lastGroup && activeGroup.id === lastGroup.id) {\n        return;\n      }\n\n      mediaType.lastGroup_ = activeGroup;\n      mediaType.lastTrack_ = activeTrack;\n      stopLoaders(segmentLoader, mediaType);\n\n      if (!activeGroup || activeGroup.isMasterPlaylist) {\n        // there is no group active or active group is a main playlist and won't change\n        return;\n      }\n\n      if (!activeGroup.playlistLoader) {\n        if (previousActiveLoader) {\n          // The previous group had a playlist loader but the new active group does not\n          // this means we are switching from demuxed to muxed audio. In this case we want to\n          // do a destructive reset of the main segment loader and not restart the audio\n          // loaders.\n          mainSegmentLoader.resetEverything();\n        }\n\n        return;\n      } // Non-destructive resync\n\n\n      segmentLoader.resyncLoader();\n      startLoaders(activeGroup.playlistLoader, mediaType);\n    };\n  };\n\n  var onGroupChanging = function onGroupChanging(type, settings) {\n    return function () {\n      var segmentLoader = settings.segmentLoaders[type],\n          mediaType = settings.mediaTypes[type];\n      mediaType.lastGroup_ = null;\n      segmentLoader.abort();\n      segmentLoader.pause();\n    };\n  };\n  /**\n   * Returns a function to be called when the media track changes. It performs a\n   * destructive reset of the SegmentLoader to ensure we start loading as close to\n   * currentTime as possible.\n   *\n   * @param {string} type\n   *        MediaGroup type\n   * @param {Object} settings\n   *        Object containing required information for media groups\n   * @return {Function}\n   *         Handler for a destructive reset of SegmentLoader when the active media\n   *         track changes.\n   * @function onTrackChanged\n   */\n\n\n  var onTrackChanged = function onTrackChanged(type, settings) {\n    return function () {\n      var masterPlaylistLoader = settings.masterPlaylistLoader,\n          _settings$segmentLoad2 = settings.segmentLoaders,\n          segmentLoader = _settings$segmentLoad2[type],\n          mainSegmentLoader = _settings$segmentLoad2.main,\n          mediaType = settings.mediaTypes[type];\n      var activeTrack = mediaType.activeTrack();\n      var activeGroup = mediaType.getActiveGroup();\n      var previousActiveLoader = mediaType.activePlaylistLoader;\n      var lastTrack = mediaType.lastTrack_; // track did not change, do nothing\n\n      if (lastTrack && activeTrack && lastTrack.id === activeTrack.id) {\n        return;\n      }\n\n      mediaType.lastGroup_ = activeGroup;\n      mediaType.lastTrack_ = activeTrack;\n      stopLoaders(segmentLoader, mediaType);\n\n      if (!activeGroup) {\n        // there is no group active so we do not want to restart loaders\n        return;\n      }\n\n      if (activeGroup.isMasterPlaylist) {\n        // track did not change, do nothing\n        if (!activeTrack || !lastTrack || activeTrack.id === lastTrack.id) {\n          return;\n        }\n\n        var mpc = settings.vhs.masterPlaylistController_;\n        var newPlaylist = mpc.selectPlaylist(); // media will not change do nothing\n\n        if (mpc.media() === newPlaylist) {\n          return;\n        }\n\n        mediaType.logger_(\"track change. Switching master audio from \" + lastTrack.id + \" to \" + activeTrack.id);\n        masterPlaylistLoader.pause();\n        mainSegmentLoader.resetEverything();\n        mpc.fastQualityChange_(newPlaylist);\n        return;\n      }\n\n      if (type === 'AUDIO') {\n        if (!activeGroup.playlistLoader) {\n          // when switching from demuxed audio/video to muxed audio/video (noted by no\n          // playlist loader for the audio group), we want to do a destructive reset of the\n          // main segment loader and not restart the audio loaders\n          mainSegmentLoader.setAudio(true); // don't have to worry about disabling the audio of the audio segment loader since\n          // it should be stopped\n\n          mainSegmentLoader.resetEverything();\n          return;\n        } // although the segment loader is an audio segment loader, call the setAudio\n        // function to ensure it is prepared to re-append the init segment (or handle other\n        // config changes)\n\n\n        segmentLoader.setAudio(true);\n        mainSegmentLoader.setAudio(false);\n      }\n\n      if (previousActiveLoader === activeGroup.playlistLoader) {\n        // Nothing has actually changed. This can happen because track change events can fire\n        // multiple times for a \"single\" change. One for enabling the new active track, and\n        // one for disabling the track that was active\n        startLoaders(activeGroup.playlistLoader, mediaType);\n        return;\n      }\n\n      if (segmentLoader.track) {\n        // For WebVTT, set the new text track in the segmentloader\n        segmentLoader.track(activeTrack);\n      } // destructive reset\n\n\n      segmentLoader.resetEverything();\n      startLoaders(activeGroup.playlistLoader, mediaType);\n    };\n  };\n\n  var onError = {\n    /**\n     * Returns a function to be called when a SegmentLoader or PlaylistLoader encounters\n     * an error.\n     *\n     * @param {string} type\n     *        MediaGroup type\n     * @param {Object} settings\n     *        Object containing required information for media groups\n     * @return {Function}\n     *         Error handler. Logs warning (or error if the playlist is blacklisted) to\n     *         console and switches back to default audio track.\n     * @function onError.AUDIO\n     */\n    AUDIO: function AUDIO(type, settings) {\n      return function () {\n        var segmentLoader = settings.segmentLoaders[type],\n            mediaType = settings.mediaTypes[type],\n            blacklistCurrentPlaylist = settings.blacklistCurrentPlaylist;\n        stopLoaders(segmentLoader, mediaType); // switch back to default audio track\n\n        var activeTrack = mediaType.activeTrack();\n        var activeGroup = mediaType.activeGroup();\n        var id = (activeGroup.filter(function (group) {\n          return group[\"default\"];\n        })[0] || activeGroup[0]).id;\n        var defaultTrack = mediaType.tracks[id];\n\n        if (activeTrack === defaultTrack) {\n          // Default track encountered an error. All we can do now is blacklist the current\n          // rendition and hope another will switch audio groups\n          blacklistCurrentPlaylist({\n            message: 'Problem encountered loading the default audio track.'\n          });\n          return;\n        }\n\n        videojs.log.warn('Problem encountered loading the alternate audio track.' + 'Switching back to default.');\n\n        for (var trackId in mediaType.tracks) {\n          mediaType.tracks[trackId].enabled = mediaType.tracks[trackId] === defaultTrack;\n        }\n\n        mediaType.onTrackChanged();\n      };\n    },\n\n    /**\n     * Returns a function to be called when a SegmentLoader or PlaylistLoader encounters\n     * an error.\n     *\n     * @param {string} type\n     *        MediaGroup type\n     * @param {Object} settings\n     *        Object containing required information for media groups\n     * @return {Function}\n     *         Error handler. Logs warning to console and disables the active subtitle track\n     * @function onError.SUBTITLES\n     */\n    SUBTITLES: function SUBTITLES(type, settings) {\n      return function () {\n        var segmentLoader = settings.segmentLoaders[type],\n            mediaType = settings.mediaTypes[type];\n        videojs.log.warn('Problem encountered loading the subtitle track.' + 'Disabling subtitle track.');\n        stopLoaders(segmentLoader, mediaType);\n        var track = mediaType.activeTrack();\n\n        if (track) {\n          track.mode = 'disabled';\n        }\n\n        mediaType.onTrackChanged();\n      };\n    }\n  };\n  var setupListeners = {\n    /**\n     * Setup event listeners for audio playlist loader\n     *\n     * @param {string} type\n     *        MediaGroup type\n     * @param {PlaylistLoader|null} playlistLoader\n     *        PlaylistLoader to register listeners on\n     * @param {Object} settings\n     *        Object containing required information for media groups\n     * @function setupListeners.AUDIO\n     */\n    AUDIO: function AUDIO(type, playlistLoader, settings) {\n      if (!playlistLoader) {\n        // no playlist loader means audio will be muxed with the video\n        return;\n      }\n\n      var tech = settings.tech,\n          requestOptions = settings.requestOptions,\n          segmentLoader = settings.segmentLoaders[type];\n      playlistLoader.on('loadedmetadata', function () {\n        var media = playlistLoader.media();\n        segmentLoader.playlist(media, requestOptions); // if the video is already playing, or if this isn't a live video and preload\n        // permits, start downloading segments\n\n        if (!tech.paused() || media.endList && tech.preload() !== 'none') {\n          segmentLoader.load();\n        }\n      });\n      playlistLoader.on('loadedplaylist', function () {\n        segmentLoader.playlist(playlistLoader.media(), requestOptions); // If the player isn't paused, ensure that the segment loader is running\n\n        if (!tech.paused()) {\n          segmentLoader.load();\n        }\n      });\n      playlistLoader.on('error', onError[type](type, settings));\n    },\n\n    /**\n     * Setup event listeners for subtitle playlist loader\n     *\n     * @param {string} type\n     *        MediaGroup type\n     * @param {PlaylistLoader|null} playlistLoader\n     *        PlaylistLoader to register listeners on\n     * @param {Object} settings\n     *        Object containing required information for media groups\n     * @function setupListeners.SUBTITLES\n     */\n    SUBTITLES: function SUBTITLES(type, playlistLoader, settings) {\n      var tech = settings.tech,\n          requestOptions = settings.requestOptions,\n          segmentLoader = settings.segmentLoaders[type],\n          mediaType = settings.mediaTypes[type];\n      playlistLoader.on('loadedmetadata', function () {\n        var media = playlistLoader.media();\n        segmentLoader.playlist(media, requestOptions);\n        segmentLoader.track(mediaType.activeTrack()); // if the video is already playing, or if this isn't a live video and preload\n        // permits, start downloading segments\n\n        if (!tech.paused() || media.endList && tech.preload() !== 'none') {\n          segmentLoader.load();\n        }\n      });\n      playlistLoader.on('loadedplaylist', function () {\n        segmentLoader.playlist(playlistLoader.media(), requestOptions); // If the player isn't paused, ensure that the segment loader is running\n\n        if (!tech.paused()) {\n          segmentLoader.load();\n        }\n      });\n      playlistLoader.on('error', onError[type](type, settings));\n    }\n  };\n  var initialize = {\n    /**\n     * Setup PlaylistLoaders and AudioTracks for the audio groups\n     *\n     * @param {string} type\n     *        MediaGroup type\n     * @param {Object} settings\n     *        Object containing required information for media groups\n     * @function initialize.AUDIO\n     */\n    'AUDIO': function AUDIO(type, settings) {\n      var vhs = settings.vhs,\n          sourceType = settings.sourceType,\n          segmentLoader = settings.segmentLoaders[type],\n          requestOptions = settings.requestOptions,\n          mediaGroups = settings.master.mediaGroups,\n          _settings$mediaTypes$ = settings.mediaTypes[type],\n          groups = _settings$mediaTypes$.groups,\n          tracks = _settings$mediaTypes$.tracks,\n          logger_ = _settings$mediaTypes$.logger_,\n          masterPlaylistLoader = settings.masterPlaylistLoader;\n      var audioOnlyMaster = isAudioOnly(masterPlaylistLoader.master); // force a default if we have none\n\n      if (!mediaGroups[type] || Object.keys(mediaGroups[type]).length === 0) {\n        mediaGroups[type] = {\n          main: {\n            \"default\": {\n              \"default\": true\n            }\n          }\n        };\n\n        if (audioOnlyMaster) {\n          mediaGroups[type].main[\"default\"].playlists = masterPlaylistLoader.master.playlists;\n        }\n      }\n\n      for (var groupId in mediaGroups[type]) {\n        if (!groups[groupId]) {\n          groups[groupId] = [];\n        }\n\n        for (var variantLabel in mediaGroups[type][groupId]) {\n          var properties = mediaGroups[type][groupId][variantLabel];\n          var playlistLoader = void 0;\n\n          if (audioOnlyMaster) {\n            logger_(\"AUDIO group '\" + groupId + \"' label '\" + variantLabel + \"' is a master playlist\");\n            properties.isMasterPlaylist = true;\n            playlistLoader = null; // if vhs-json was provided as the source, and the media playlist was resolved,\n            // use the resolved media playlist object\n          } else if (sourceType === 'vhs-json' && properties.playlists) {\n            playlistLoader = new PlaylistLoader(properties.playlists[0], vhs, requestOptions);\n          } else if (properties.resolvedUri) {\n            playlistLoader = new PlaylistLoader(properties.resolvedUri, vhs, requestOptions); // TODO: dash isn't the only type with properties.playlists\n            // should we even have properties.playlists in this check.\n          } else if (properties.playlists && sourceType === 'dash') {\n            playlistLoader = new DashPlaylistLoader(properties.playlists[0], vhs, requestOptions, masterPlaylistLoader);\n          } else {\n            // no resolvedUri means the audio is muxed with the video when using this\n            // audio track\n            playlistLoader = null;\n          }\n\n          properties = videojs.mergeOptions({\n            id: variantLabel,\n            playlistLoader: playlistLoader\n          }, properties);\n          setupListeners[type](type, properties.playlistLoader, settings);\n          groups[groupId].push(properties);\n\n          if (typeof tracks[variantLabel] === 'undefined') {\n            var track = new videojs.AudioTrack({\n              id: variantLabel,\n              kind: audioTrackKind_(properties),\n              enabled: false,\n              language: properties.language,\n              \"default\": properties[\"default\"],\n              label: variantLabel\n            });\n            tracks[variantLabel] = track;\n          }\n        }\n      } // setup single error event handler for the segment loader\n\n\n      segmentLoader.on('error', onError[type](type, settings));\n    },\n\n    /**\n     * Setup PlaylistLoaders and TextTracks for the subtitle groups\n     *\n     * @param {string} type\n     *        MediaGroup type\n     * @param {Object} settings\n     *        Object containing required information for media groups\n     * @function initialize.SUBTITLES\n     */\n    'SUBTITLES': function SUBTITLES(type, settings) {\n      var tech = settings.tech,\n          vhs = settings.vhs,\n          sourceType = settings.sourceType,\n          segmentLoader = settings.segmentLoaders[type],\n          requestOptions = settings.requestOptions,\n          mediaGroups = settings.master.mediaGroups,\n          _settings$mediaTypes$2 = settings.mediaTypes[type],\n          groups = _settings$mediaTypes$2.groups,\n          tracks = _settings$mediaTypes$2.tracks,\n          masterPlaylistLoader = settings.masterPlaylistLoader;\n\n      for (var groupId in mediaGroups[type]) {\n        if (!groups[groupId]) {\n          groups[groupId] = [];\n        }\n\n        for (var variantLabel in mediaGroups[type][groupId]) {\n          if (mediaGroups[type][groupId][variantLabel].forced) {\n            // Subtitle playlists with the forced attribute are not selectable in Safari.\n            // According to Apple's HLS Authoring Specification:\n            //   If content has forced subtitles and regular subtitles in a given language,\n            //   the regular subtitles track in that language MUST contain both the forced\n            //   subtitles and the regular subtitles for that language.\n            // Because of this requirement and that Safari does not add forced subtitles,\n            // forced subtitles are skipped here to maintain consistent experience across\n            // all platforms\n            continue;\n          }\n\n          var properties = mediaGroups[type][groupId][variantLabel];\n          var playlistLoader = void 0;\n\n          if (sourceType === 'hls') {\n            playlistLoader = new PlaylistLoader(properties.resolvedUri, vhs, requestOptions);\n          } else if (sourceType === 'dash') {\n            var playlists = properties.playlists.filter(function (p) {\n              return p.excludeUntil !== Infinity;\n            });\n\n            if (!playlists.length) {\n              return;\n            }\n\n            playlistLoader = new DashPlaylistLoader(properties.playlists[0], vhs, requestOptions, masterPlaylistLoader);\n          } else if (sourceType === 'vhs-json') {\n            playlistLoader = new PlaylistLoader( // if the vhs-json object included the media playlist, use the media playlist\n            // as provided, otherwise use the resolved URI to load the playlist\n            properties.playlists ? properties.playlists[0] : properties.resolvedUri, vhs, requestOptions);\n          }\n\n          properties = videojs.mergeOptions({\n            id: variantLabel,\n            playlistLoader: playlistLoader\n          }, properties);\n          setupListeners[type](type, properties.playlistLoader, settings);\n          groups[groupId].push(properties);\n\n          if (typeof tracks[variantLabel] === 'undefined') {\n            var track = tech.addRemoteTextTrack({\n              id: variantLabel,\n              kind: 'subtitles',\n              \"default\": properties[\"default\"] && properties.autoselect,\n              language: properties.language,\n              label: variantLabel\n            }, false).track;\n            tracks[variantLabel] = track;\n          }\n        }\n      } // setup single error event handler for the segment loader\n\n\n      segmentLoader.on('error', onError[type](type, settings));\n    },\n\n    /**\n     * Setup TextTracks for the closed-caption groups\n     *\n     * @param {String} type\n     *        MediaGroup type\n     * @param {Object} settings\n     *        Object containing required information for media groups\n     * @function initialize['CLOSED-CAPTIONS']\n     */\n    'CLOSED-CAPTIONS': function CLOSEDCAPTIONS(type, settings) {\n      var tech = settings.tech,\n          mediaGroups = settings.master.mediaGroups,\n          _settings$mediaTypes$3 = settings.mediaTypes[type],\n          groups = _settings$mediaTypes$3.groups,\n          tracks = _settings$mediaTypes$3.tracks;\n\n      for (var groupId in mediaGroups[type]) {\n        if (!groups[groupId]) {\n          groups[groupId] = [];\n        }\n\n        for (var variantLabel in mediaGroups[type][groupId]) {\n          var properties = mediaGroups[type][groupId][variantLabel]; // Look for either 608 (CCn) or 708 (SERVICEn) caption services\n\n          if (!/^(?:CC|SERVICE)/.test(properties.instreamId)) {\n            continue;\n          }\n\n          var captionServices = tech.options_.vhs && tech.options_.vhs.captionServices || {};\n          var newProps = {\n            label: variantLabel,\n            language: properties.language,\n            instreamId: properties.instreamId,\n            \"default\": properties[\"default\"] && properties.autoselect\n          };\n\n          if (captionServices[newProps.instreamId]) {\n            newProps = videojs.mergeOptions(newProps, captionServices[newProps.instreamId]);\n          }\n\n          if (newProps[\"default\"] === undefined) {\n            delete newProps[\"default\"];\n          } // No PlaylistLoader is required for Closed-Captions because the captions are\n          // embedded within the video stream\n\n\n          groups[groupId].push(videojs.mergeOptions({\n            id: variantLabel\n          }, properties));\n\n          if (typeof tracks[variantLabel] === 'undefined') {\n            var track = tech.addRemoteTextTrack({\n              id: newProps.instreamId,\n              kind: 'captions',\n              \"default\": newProps[\"default\"],\n              language: newProps.language,\n              label: newProps.label\n            }, false).track;\n            tracks[variantLabel] = track;\n          }\n        }\n      }\n    }\n  };\n\n  var groupMatch = function groupMatch(list, media) {\n    for (var i = 0; i < list.length; i++) {\n      if (playlistMatch(media, list[i])) {\n        return true;\n      }\n\n      if (list[i].playlists && groupMatch(list[i].playlists, media)) {\n        return true;\n      }\n    }\n\n    return false;\n  };\n  /**\n   * Returns a function used to get the active group of the provided type\n   *\n   * @param {string} type\n   *        MediaGroup type\n   * @param {Object} settings\n   *        Object containing required information for media groups\n   * @return {Function}\n   *         Function that returns the active media group for the provided type. Takes an\n   *         optional parameter {TextTrack} track. If no track is provided, a list of all\n   *         variants in the group, otherwise the variant corresponding to the provided\n   *         track is returned.\n   * @function activeGroup\n   */\n\n\n  var activeGroup = function activeGroup(type, settings) {\n    return function (track) {\n      var masterPlaylistLoader = settings.masterPlaylistLoader,\n          groups = settings.mediaTypes[type].groups;\n      var media = masterPlaylistLoader.media();\n\n      if (!media) {\n        return null;\n      }\n\n      var variants = null; // set to variants to main media active group\n\n      if (media.attributes[type]) {\n        variants = groups[media.attributes[type]];\n      }\n\n      var groupKeys = Object.keys(groups);\n\n      if (!variants) {\n        // find the masterPlaylistLoader media\n        // that is in a media group if we are dealing\n        // with audio only\n        if (type === 'AUDIO' && groupKeys.length > 1 && isAudioOnly(settings.master)) {\n          for (var i = 0; i < groupKeys.length; i++) {\n            var groupPropertyList = groups[groupKeys[i]];\n\n            if (groupMatch(groupPropertyList, media)) {\n              variants = groupPropertyList;\n              break;\n            }\n          } // use the main group if it exists\n\n        } else if (groups.main) {\n          variants = groups.main; // only one group, use that one\n        } else if (groupKeys.length === 1) {\n          variants = groups[groupKeys[0]];\n        }\n      }\n\n      if (typeof track === 'undefined') {\n        return variants;\n      }\n\n      if (track === null || !variants) {\n        // An active track was specified so a corresponding group is expected. track === null\n        // means no track is currently active so there is no corresponding group\n        return null;\n      }\n\n      return variants.filter(function (props) {\n        return props.id === track.id;\n      })[0] || null;\n    };\n  };\n\n  var activeTrack = {\n    /**\n     * Returns a function used to get the active track of type provided\n     *\n     * @param {string} type\n     *        MediaGroup type\n     * @param {Object} settings\n     *        Object containing required information for media groups\n     * @return {Function}\n     *         Function that returns the active media track for the provided type. Returns\n     *         null if no track is active\n     * @function activeTrack.AUDIO\n     */\n    AUDIO: function AUDIO(type, settings) {\n      return function () {\n        var tracks = settings.mediaTypes[type].tracks;\n\n        for (var id in tracks) {\n          if (tracks[id].enabled) {\n            return tracks[id];\n          }\n        }\n\n        return null;\n      };\n    },\n\n    /**\n     * Returns a function used to get the active track of type provided\n     *\n     * @param {string} type\n     *        MediaGroup type\n     * @param {Object} settings\n     *        Object containing required information for media groups\n     * @return {Function}\n     *         Function that returns the active media track for the provided type. Returns\n     *         null if no track is active\n     * @function activeTrack.SUBTITLES\n     */\n    SUBTITLES: function SUBTITLES(type, settings) {\n      return function () {\n        var tracks = settings.mediaTypes[type].tracks;\n\n        for (var id in tracks) {\n          if (tracks[id].mode === 'showing' || tracks[id].mode === 'hidden') {\n            return tracks[id];\n          }\n        }\n\n        return null;\n      };\n    }\n  };\n\n  var getActiveGroup = function getActiveGroup(type, _ref) {\n    var mediaTypes = _ref.mediaTypes;\n    return function () {\n      var activeTrack_ = mediaTypes[type].activeTrack();\n\n      if (!activeTrack_) {\n        return null;\n      }\n\n      return mediaTypes[type].activeGroup(activeTrack_);\n    };\n  };\n  /**\n   * Setup PlaylistLoaders and Tracks for media groups (Audio, Subtitles,\n   * Closed-Captions) specified in the master manifest.\n   *\n   * @param {Object} settings\n   *        Object containing required information for setting up the media groups\n   * @param {Tech} settings.tech\n   *        The tech of the player\n   * @param {Object} settings.requestOptions\n   *        XHR request options used by the segment loaders\n   * @param {PlaylistLoader} settings.masterPlaylistLoader\n   *        PlaylistLoader for the master source\n   * @param {VhsHandler} settings.vhs\n   *        VHS SourceHandler\n   * @param {Object} settings.master\n   *        The parsed master manifest\n   * @param {Object} settings.mediaTypes\n   *        Object to store the loaders, tracks, and utility methods for each media type\n   * @param {Function} settings.blacklistCurrentPlaylist\n   *        Blacklists the current rendition and forces a rendition switch.\n   * @function setupMediaGroups\n   */\n\n\n  var setupMediaGroups = function setupMediaGroups(settings) {\n    ['AUDIO', 'SUBTITLES', 'CLOSED-CAPTIONS'].forEach(function (type) {\n      initialize[type](type, settings);\n    });\n    var mediaTypes = settings.mediaTypes,\n        masterPlaylistLoader = settings.masterPlaylistLoader,\n        tech = settings.tech,\n        vhs = settings.vhs,\n        _settings$segmentLoad3 = settings.segmentLoaders,\n        audioSegmentLoader = _settings$segmentLoad3['AUDIO'],\n        mainSegmentLoader = _settings$segmentLoad3.main; // setup active group and track getters and change event handlers\n\n    ['AUDIO', 'SUBTITLES'].forEach(function (type) {\n      mediaTypes[type].activeGroup = activeGroup(type, settings);\n      mediaTypes[type].activeTrack = activeTrack[type](type, settings);\n      mediaTypes[type].onGroupChanged = onGroupChanged(type, settings);\n      mediaTypes[type].onGroupChanging = onGroupChanging(type, settings);\n      mediaTypes[type].onTrackChanged = onTrackChanged(type, settings);\n      mediaTypes[type].getActiveGroup = getActiveGroup(type, settings);\n    }); // DO NOT enable the default subtitle or caption track.\n    // DO enable the default audio track\n\n    var audioGroup = mediaTypes.AUDIO.activeGroup();\n\n    if (audioGroup) {\n      var groupId = (audioGroup.filter(function (group) {\n        return group[\"default\"];\n      })[0] || audioGroup[0]).id;\n      mediaTypes.AUDIO.tracks[groupId].enabled = true;\n      mediaTypes.AUDIO.onGroupChanged();\n      mediaTypes.AUDIO.onTrackChanged();\n      var activeAudioGroup = mediaTypes.AUDIO.getActiveGroup(); // a similar check for handling setAudio on each loader is run again each time the\n      // track is changed, but needs to be handled here since the track may not be considered\n      // changed on the first call to onTrackChanged\n\n      if (!activeAudioGroup.playlistLoader) {\n        // either audio is muxed with video or the stream is audio only\n        mainSegmentLoader.setAudio(true);\n      } else {\n        // audio is demuxed\n        mainSegmentLoader.setAudio(false);\n        audioSegmentLoader.setAudio(true);\n      }\n    }\n\n    masterPlaylistLoader.on('mediachange', function () {\n      ['AUDIO', 'SUBTITLES'].forEach(function (type) {\n        return mediaTypes[type].onGroupChanged();\n      });\n    });\n    masterPlaylistLoader.on('mediachanging', function () {\n      ['AUDIO', 'SUBTITLES'].forEach(function (type) {\n        return mediaTypes[type].onGroupChanging();\n      });\n    }); // custom audio track change event handler for usage event\n\n    var onAudioTrackChanged = function onAudioTrackChanged() {\n      mediaTypes.AUDIO.onTrackChanged();\n      tech.trigger({\n        type: 'usage',\n        name: 'vhs-audio-change'\n      });\n      tech.trigger({\n        type: 'usage',\n        name: 'hls-audio-change'\n      });\n    };\n\n    tech.audioTracks().addEventListener('change', onAudioTrackChanged);\n    tech.remoteTextTracks().addEventListener('change', mediaTypes.SUBTITLES.onTrackChanged);\n    vhs.on('dispose', function () {\n      tech.audioTracks().removeEventListener('change', onAudioTrackChanged);\n      tech.remoteTextTracks().removeEventListener('change', mediaTypes.SUBTITLES.onTrackChanged);\n    }); // clear existing audio tracks and add the ones we just created\n\n    tech.clearTracks('audio');\n\n    for (var id in mediaTypes.AUDIO.tracks) {\n      tech.audioTracks().addTrack(mediaTypes.AUDIO.tracks[id]);\n    }\n  };\n  /**\n   * Creates skeleton object used to store the loaders, tracks, and utility methods for each\n   * media type\n   *\n   * @return {Object}\n   *         Object to store the loaders, tracks, and utility methods for each media type\n   * @function createMediaTypes\n   */\n\n\n  var createMediaTypes = function createMediaTypes() {\n    var mediaTypes = {};\n    ['AUDIO', 'SUBTITLES', 'CLOSED-CAPTIONS'].forEach(function (type) {\n      mediaTypes[type] = {\n        groups: {},\n        tracks: {},\n        activePlaylistLoader: null,\n        activeGroup: noop,\n        activeTrack: noop,\n        getActiveGroup: noop,\n        onGroupChanged: noop,\n        onTrackChanged: noop,\n        lastTrack_: null,\n        logger_: logger(\"MediaGroups[\" + type + \"]\")\n      };\n    });\n    return mediaTypes;\n  };\n\n  var ABORT_EARLY_BLACKLIST_SECONDS = 60 * 2;\n  var Vhs$1; // SegmentLoader stats that need to have each loader's\n  // values summed to calculate the final value\n\n  var loaderStats = ['mediaRequests', 'mediaRequestsAborted', 'mediaRequestsTimedout', 'mediaRequestsErrored', 'mediaTransferDuration', 'mediaBytesTransferred', 'mediaAppends'];\n\n  var sumLoaderStat = function sumLoaderStat(stat) {\n    return this.audioSegmentLoader_[stat] + this.mainSegmentLoader_[stat];\n  };\n\n  var shouldSwitchToMedia = function shouldSwitchToMedia(_ref) {\n    var currentPlaylist = _ref.currentPlaylist,\n        buffered = _ref.buffered,\n        currentTime = _ref.currentTime,\n        nextPlaylist = _ref.nextPlaylist,\n        bufferLowWaterLine = _ref.bufferLowWaterLine,\n        bufferHighWaterLine = _ref.bufferHighWaterLine,\n        duration = _ref.duration,\n        experimentalBufferBasedABR = _ref.experimentalBufferBasedABR,\n        log = _ref.log; // we have no other playlist to switch to\n\n    if (!nextPlaylist) {\n      videojs.log.warn('We received no playlist to switch to. Please check your stream.');\n      return false;\n    }\n\n    var sharedLogLine = \"allowing switch \" + (currentPlaylist && currentPlaylist.id || 'null') + \" -> \" + nextPlaylist.id;\n\n    if (!currentPlaylist) {\n      log(sharedLogLine + \" as current playlist is not set\");\n      return true;\n    } // no need to switch if playlist is the same\n\n\n    if (nextPlaylist.id === currentPlaylist.id) {\n      return false;\n    } // determine if current time is in a buffered range.\n\n\n    var isBuffered = Boolean(findRange(buffered, currentTime).length); // If the playlist is live, then we want to not take low water line into account.\n    // This is because in LIVE, the player plays 3 segments from the end of the\n    // playlist, and if `BUFFER_LOW_WATER_LINE` is greater than the duration availble\n    // in those segments, a viewer will never experience a rendition upswitch.\n\n    if (!currentPlaylist.endList) {\n      // For LLHLS live streams, don't switch renditions before playback has started, as it almost\n      // doubles the time to first playback.\n      if (!isBuffered && typeof currentPlaylist.partTargetDuration === 'number') {\n        log(\"not \" + sharedLogLine + \" as current playlist is live llhls, but currentTime isn't in buffered.\");\n        return false;\n      }\n\n      log(sharedLogLine + \" as current playlist is live\");\n      return true;\n    }\n\n    var forwardBuffer = timeAheadOf(buffered, currentTime);\n    var maxBufferLowWaterLine = experimentalBufferBasedABR ? Config.EXPERIMENTAL_MAX_BUFFER_LOW_WATER_LINE : Config.MAX_BUFFER_LOW_WATER_LINE; // For the same reason as LIVE, we ignore the low water line when the VOD\n    // duration is below the max potential low water line\n\n    if (duration < maxBufferLowWaterLine) {\n      log(sharedLogLine + \" as duration < max low water line (\" + duration + \" < \" + maxBufferLowWaterLine + \")\");\n      return true;\n    }\n\n    var nextBandwidth = nextPlaylist.attributes.BANDWIDTH;\n    var currBandwidth = currentPlaylist.attributes.BANDWIDTH; // when switching down, if our buffer is lower than the high water line,\n    // we can switch down\n\n    if (nextBandwidth < currBandwidth && (!experimentalBufferBasedABR || forwardBuffer < bufferHighWaterLine)) {\n      var logLine = sharedLogLine + \" as next bandwidth < current bandwidth (\" + nextBandwidth + \" < \" + currBandwidth + \")\";\n\n      if (experimentalBufferBasedABR) {\n        logLine += \" and forwardBuffer < bufferHighWaterLine (\" + forwardBuffer + \" < \" + bufferHighWaterLine + \")\";\n      }\n\n      log(logLine);\n      return true;\n    } // and if our buffer is higher than the low water line,\n    // we can switch up\n\n\n    if ((!experimentalBufferBasedABR || nextBandwidth > currBandwidth) && forwardBuffer >= bufferLowWaterLine) {\n      var _logLine = sharedLogLine + \" as forwardBuffer >= bufferLowWaterLine (\" + forwardBuffer + \" >= \" + bufferLowWaterLine + \")\";\n\n      if (experimentalBufferBasedABR) {\n        _logLine += \" and next bandwidth > current bandwidth (\" + nextBandwidth + \" > \" + currBandwidth + \")\";\n      }\n\n      log(_logLine);\n      return true;\n    }\n\n    log(\"not \" + sharedLogLine + \" as no switching criteria met\");\n    return false;\n  };\n  /**\n   * the master playlist controller controller all interactons\n   * between playlists and segmentloaders. At this time this mainly\n   * involves a master playlist and a series of audio playlists\n   * if they are available\n   *\n   * @class MasterPlaylistController\n   * @extends videojs.EventTarget\n   */\n\n\n  var MasterPlaylistController = /*#__PURE__*/function (_videojs$EventTarget) {\n    inheritsLoose(MasterPlaylistController, _videojs$EventTarget);\n\n    function MasterPlaylistController(options) {\n      var _this;\n\n      _this = _videojs$EventTarget.call(this) || this;\n      var src = options.src,\n          handleManifestRedirects = options.handleManifestRedirects,\n          withCredentials = options.withCredentials,\n          tech = options.tech,\n          bandwidth = options.bandwidth,\n          externVhs = options.externVhs,\n          useCueTags = options.useCueTags,\n          blacklistDuration = options.blacklistDuration,\n          enableLowInitialPlaylist = options.enableLowInitialPlaylist,\n          sourceType = options.sourceType,\n          cacheEncryptionKeys = options.cacheEncryptionKeys,\n          experimentalBufferBasedABR = options.experimentalBufferBasedABR,\n          experimentalLeastPixelDiffSelector = options.experimentalLeastPixelDiffSelector,\n          captionServices = options.captionServices;\n\n      if (!src) {\n        throw new Error('A non-empty playlist URL or JSON manifest string is required');\n      }\n\n      var maxPlaylistRetries = options.maxPlaylistRetries;\n\n      if (maxPlaylistRetries === null || typeof maxPlaylistRetries === 'undefined') {\n        maxPlaylistRetries = Infinity;\n      }\n\n      Vhs$1 = externVhs;\n      _this.experimentalBufferBasedABR = Boolean(experimentalBufferBasedABR);\n      _this.experimentalLeastPixelDiffSelector = Boolean(experimentalLeastPixelDiffSelector);\n      _this.withCredentials = withCredentials;\n      _this.tech_ = tech;\n      _this.vhs_ = tech.vhs;\n      _this.sourceType_ = sourceType;\n      _this.useCueTags_ = useCueTags;\n      _this.blacklistDuration = blacklistDuration;\n      _this.maxPlaylistRetries = maxPlaylistRetries;\n      _this.enableLowInitialPlaylist = enableLowInitialPlaylist;\n\n      if (_this.useCueTags_) {\n        _this.cueTagsTrack_ = _this.tech_.addTextTrack('metadata', 'ad-cues');\n        _this.cueTagsTrack_.inBandMetadataTrackDispatchType = '';\n      }\n\n      _this.requestOptions_ = {\n        withCredentials: withCredentials,\n        handleManifestRedirects: handleManifestRedirects,\n        maxPlaylistRetries: maxPlaylistRetries,\n        timeout: null\n      };\n\n      _this.on('error', _this.pauseLoading);\n\n      _this.mediaTypes_ = createMediaTypes();\n      _this.mediaSource = new window.MediaSource();\n      _this.handleDurationChange_ = _this.handleDurationChange_.bind(assertThisInitialized(_this));\n      _this.handleSourceOpen_ = _this.handleSourceOpen_.bind(assertThisInitialized(_this));\n      _this.handleSourceEnded_ = _this.handleSourceEnded_.bind(assertThisInitialized(_this));\n\n      _this.mediaSource.addEventListener('durationchange', _this.handleDurationChange_); // load the media source into the player\n\n\n      _this.mediaSource.addEventListener('sourceopen', _this.handleSourceOpen_);\n\n      _this.mediaSource.addEventListener('sourceended', _this.handleSourceEnded_); // we don't have to handle sourceclose since dispose will handle termination of\n      // everything, and the MediaSource should not be detached without a proper disposal\n\n\n      _this.seekable_ = videojs.createTimeRanges();\n      _this.hasPlayed_ = false;\n      _this.syncController_ = new SyncController(options);\n      _this.segmentMetadataTrack_ = tech.addRemoteTextTrack({\n        kind: 'metadata',\n        label: 'segment-metadata'\n      }, false).track;\n      _this.decrypter_ = new Decrypter();\n      _this.sourceUpdater_ = new SourceUpdater(_this.mediaSource);\n      _this.inbandTextTracks_ = {};\n      _this.timelineChangeController_ = new TimelineChangeController();\n      var segmentLoaderSettings = {\n        vhs: _this.vhs_,\n        parse708captions: options.parse708captions,\n        useDtsForTimestampOffset: options.useDtsForTimestampOffset,\n        captionServices: captionServices,\n        mediaSource: _this.mediaSource,\n        currentTime: _this.tech_.currentTime.bind(_this.tech_),\n        seekable: function seekable() {\n          return _this.seekable();\n        },\n        seeking: function seeking() {\n          return _this.tech_.seeking();\n        },\n        duration: function duration() {\n          return _this.duration();\n        },\n        hasPlayed: function hasPlayed() {\n          return _this.hasPlayed_;\n        },\n        goalBufferLength: function goalBufferLength() {\n          return _this.goalBufferLength();\n        },\n        bandwidth: bandwidth,\n        syncController: _this.syncController_,\n        decrypter: _this.decrypter_,\n        sourceType: _this.sourceType_,\n        inbandTextTracks: _this.inbandTextTracks_,\n        cacheEncryptionKeys: cacheEncryptionKeys,\n        sourceUpdater: _this.sourceUpdater_,\n        timelineChangeController: _this.timelineChangeController_,\n        experimentalExactManifestTimings: options.experimentalExactManifestTimings\n      }; // The source type check not only determines whether a special DASH playlist loader\n      // should be used, but also covers the case where the provided src is a vhs-json\n      // manifest object (instead of a URL). In the case of vhs-json, the default\n      // PlaylistLoader should be used.\n\n      _this.masterPlaylistLoader_ = _this.sourceType_ === 'dash' ? new DashPlaylistLoader(src, _this.vhs_, _this.requestOptions_) : new PlaylistLoader(src, _this.vhs_, _this.requestOptions_);\n\n      _this.setupMasterPlaylistLoaderListeners_(); // setup segment loaders\n      // combined audio/video or just video when alternate audio track is selected\n\n\n      _this.mainSegmentLoader_ = new SegmentLoader(videojs.mergeOptions(segmentLoaderSettings, {\n        segmentMetadataTrack: _this.segmentMetadataTrack_,\n        loaderType: 'main'\n      }), options); // alternate audio track\n\n      _this.audioSegmentLoader_ = new SegmentLoader(videojs.mergeOptions(segmentLoaderSettings, {\n        loaderType: 'audio'\n      }), options);\n      _this.subtitleSegmentLoader_ = new VTTSegmentLoader(videojs.mergeOptions(segmentLoaderSettings, {\n        loaderType: 'vtt',\n        featuresNativeTextTracks: _this.tech_.featuresNativeTextTracks\n      }), options);\n\n      _this.setupSegmentLoaderListeners_();\n\n      if (_this.experimentalBufferBasedABR) {\n        _this.masterPlaylistLoader_.one('loadedplaylist', function () {\n          return _this.startABRTimer_();\n        });\n\n        _this.tech_.on('pause', function () {\n          return _this.stopABRTimer_();\n        });\n\n        _this.tech_.on('play', function () {\n          return _this.startABRTimer_();\n        });\n      } // Create SegmentLoader stat-getters\n      // mediaRequests_\n      // mediaRequestsAborted_\n      // mediaRequestsTimedout_\n      // mediaRequestsErrored_\n      // mediaTransferDuration_\n      // mediaBytesTransferred_\n      // mediaAppends_\n\n\n      loaderStats.forEach(function (stat) {\n        _this[stat + '_'] = sumLoaderStat.bind(assertThisInitialized(_this), stat);\n      });\n      _this.logger_ = logger('MPC');\n      _this.triggeredFmp4Usage = false;\n\n      if (_this.tech_.preload() === 'none') {\n        _this.loadOnPlay_ = function () {\n          _this.loadOnPlay_ = null;\n\n          _this.masterPlaylistLoader_.load();\n        };\n\n        _this.tech_.one('play', _this.loadOnPlay_);\n      } else {\n        _this.masterPlaylistLoader_.load();\n      }\n\n      _this.timeToLoadedData__ = -1;\n      _this.mainAppendsToLoadedData__ = -1;\n      _this.audioAppendsToLoadedData__ = -1;\n      var event = _this.tech_.preload() === 'none' ? 'play' : 'loadstart'; // start the first frame timer on loadstart or play (for preload none)\n\n      _this.tech_.one(event, function () {\n        var timeToLoadedDataStart = Date.now();\n\n        _this.tech_.one('loadeddata', function () {\n          _this.timeToLoadedData__ = Date.now() - timeToLoadedDataStart;\n          _this.mainAppendsToLoadedData__ = _this.mainSegmentLoader_.mediaAppends;\n          _this.audioAppendsToLoadedData__ = _this.audioSegmentLoader_.mediaAppends;\n        });\n      });\n\n      return _this;\n    }\n\n    var _proto = MasterPlaylistController.prototype;\n\n    _proto.mainAppendsToLoadedData_ = function mainAppendsToLoadedData_() {\n      return this.mainAppendsToLoadedData__;\n    };\n\n    _proto.audioAppendsToLoadedData_ = function audioAppendsToLoadedData_() {\n      return this.audioAppendsToLoadedData__;\n    };\n\n    _proto.appendsToLoadedData_ = function appendsToLoadedData_() {\n      var main = this.mainAppendsToLoadedData_();\n      var audio = this.audioAppendsToLoadedData_();\n\n      if (main === -1 || audio === -1) {\n        return -1;\n      }\n\n      return main + audio;\n    };\n\n    _proto.timeToLoadedData_ = function timeToLoadedData_() {\n      return this.timeToLoadedData__;\n    }\n    /**\n     * Run selectPlaylist and switch to the new playlist if we should\n     *\n     * @private\n     *\n     */\n    ;\n\n    _proto.checkABR_ = function checkABR_() {\n      var nextPlaylist = this.selectPlaylist();\n\n      if (nextPlaylist && this.shouldSwitchToMedia_(nextPlaylist)) {\n        this.switchMedia_(nextPlaylist, 'abr');\n      }\n    };\n\n    _proto.switchMedia_ = function switchMedia_(playlist, cause, delay) {\n      var oldMedia = this.media();\n      var oldId = oldMedia && (oldMedia.id || oldMedia.uri);\n      var newId = playlist.id || playlist.uri;\n\n      if (oldId && oldId !== newId) {\n        this.logger_(\"switch media \" + oldId + \" -> \" + newId + \" from \" + cause);\n        this.tech_.trigger({\n          type: 'usage',\n          name: \"vhs-rendition-change-\" + cause\n        });\n      }\n\n      this.masterPlaylistLoader_.media(playlist, delay);\n    }\n    /**\n     * Start a timer that periodically calls checkABR_\n     *\n     * @private\n     */\n    ;\n\n    _proto.startABRTimer_ = function startABRTimer_() {\n      var _this2 = this;\n\n      this.stopABRTimer_();\n      this.abrTimer_ = window.setInterval(function () {\n        return _this2.checkABR_();\n      }, 250);\n    }\n    /**\n     * Stop the timer that periodically calls checkABR_\n     *\n     * @private\n     */\n    ;\n\n    _proto.stopABRTimer_ = function stopABRTimer_() {\n      // if we're scrubbing, we don't need to pause.\n      // This getter will be added to Video.js in version 7.11.\n      if (this.tech_.scrubbing && this.tech_.scrubbing()) {\n        return;\n      }\n\n      window.clearInterval(this.abrTimer_);\n      this.abrTimer_ = null;\n    }\n    /**\n     * Get a list of playlists for the currently selected audio playlist\n     *\n     * @return {Array} the array of audio playlists\n     */\n    ;\n\n    _proto.getAudioTrackPlaylists_ = function getAudioTrackPlaylists_() {\n      var master = this.master();\n      var defaultPlaylists = master && master.playlists || []; // if we don't have any audio groups then we can only\n      // assume that the audio tracks are contained in masters\n      // playlist array, use that or an empty array.\n\n      if (!master || !master.mediaGroups || !master.mediaGroups.AUDIO) {\n        return defaultPlaylists;\n      }\n\n      var AUDIO = master.mediaGroups.AUDIO;\n      var groupKeys = Object.keys(AUDIO);\n      var track; // get the current active track\n\n      if (Object.keys(this.mediaTypes_.AUDIO.groups).length) {\n        track = this.mediaTypes_.AUDIO.activeTrack(); // or get the default track from master if mediaTypes_ isn't setup yet\n      } else {\n        // default group is `main` or just the first group.\n        var defaultGroup = AUDIO.main || groupKeys.length && AUDIO[groupKeys[0]];\n\n        for (var label in defaultGroup) {\n          if (defaultGroup[label][\"default\"]) {\n            track = {\n              label: label\n            };\n            break;\n          }\n        }\n      } // no active track no playlists.\n\n\n      if (!track) {\n        return defaultPlaylists;\n      }\n\n      var playlists = []; // get all of the playlists that are possible for the\n      // active track.\n\n      for (var group in AUDIO) {\n        if (AUDIO[group][track.label]) {\n          var properties = AUDIO[group][track.label];\n\n          if (properties.playlists && properties.playlists.length) {\n            playlists.push.apply(playlists, properties.playlists);\n          } else if (properties.uri) {\n            playlists.push(properties);\n          } else if (master.playlists.length) {\n            // if an audio group does not have a uri\n            // see if we have main playlists that use it as a group.\n            // if we do then add those to the playlists list.\n            for (var i = 0; i < master.playlists.length; i++) {\n              var playlist = master.playlists[i];\n\n              if (playlist.attributes && playlist.attributes.AUDIO && playlist.attributes.AUDIO === group) {\n                playlists.push(playlist);\n              }\n            }\n          }\n        }\n      }\n\n      if (!playlists.length) {\n        return defaultPlaylists;\n      }\n\n      return playlists;\n    }\n    /**\n     * Register event handlers on the master playlist loader. A helper\n     * function for construction time.\n     *\n     * @private\n     */\n    ;\n\n    _proto.setupMasterPlaylistLoaderListeners_ = function setupMasterPlaylistLoaderListeners_() {\n      var _this3 = this;\n\n      this.masterPlaylistLoader_.on('loadedmetadata', function () {\n        var media = _this3.masterPlaylistLoader_.media();\n\n        var requestTimeout = media.targetDuration * 1.5 * 1000; // If we don't have any more available playlists, we don't want to\n        // timeout the request.\n\n        if (isLowestEnabledRendition(_this3.masterPlaylistLoader_.master, _this3.masterPlaylistLoader_.media())) {\n          _this3.requestOptions_.timeout = 0;\n        } else {\n          _this3.requestOptions_.timeout = requestTimeout;\n        } // if this isn't a live video and preload permits, start\n        // downloading segments\n\n\n        if (media.endList && _this3.tech_.preload() !== 'none') {\n          _this3.mainSegmentLoader_.playlist(media, _this3.requestOptions_);\n\n          _this3.mainSegmentLoader_.load();\n        }\n\n        setupMediaGroups({\n          sourceType: _this3.sourceType_,\n          segmentLoaders: {\n            AUDIO: _this3.audioSegmentLoader_,\n            SUBTITLES: _this3.subtitleSegmentLoader_,\n            main: _this3.mainSegmentLoader_\n          },\n          tech: _this3.tech_,\n          requestOptions: _this3.requestOptions_,\n          masterPlaylistLoader: _this3.masterPlaylistLoader_,\n          vhs: _this3.vhs_,\n          master: _this3.master(),\n          mediaTypes: _this3.mediaTypes_,\n          blacklistCurrentPlaylist: _this3.blacklistCurrentPlaylist.bind(_this3)\n        });\n\n        _this3.triggerPresenceUsage_(_this3.master(), media);\n\n        _this3.setupFirstPlay();\n\n        if (!_this3.mediaTypes_.AUDIO.activePlaylistLoader || _this3.mediaTypes_.AUDIO.activePlaylistLoader.media()) {\n          _this3.trigger('selectedinitialmedia');\n        } else {\n          // We must wait for the active audio playlist loader to\n          // finish setting up before triggering this event so the\n          // representations API and EME setup is correct\n          _this3.mediaTypes_.AUDIO.activePlaylistLoader.one('loadedmetadata', function () {\n            _this3.trigger('selectedinitialmedia');\n          });\n        }\n      });\n      this.masterPlaylistLoader_.on('loadedplaylist', function () {\n        if (_this3.loadOnPlay_) {\n          _this3.tech_.off('play', _this3.loadOnPlay_);\n        }\n\n        var updatedPlaylist = _this3.masterPlaylistLoader_.media();\n\n        if (!updatedPlaylist) {\n          // exclude any variants that are not supported by the browser before selecting\n          // an initial media as the playlist selectors do not consider browser support\n          _this3.excludeUnsupportedVariants_();\n\n          var selectedMedia;\n\n          if (_this3.enableLowInitialPlaylist) {\n            selectedMedia = _this3.selectInitialPlaylist();\n          }\n\n          if (!selectedMedia) {\n            selectedMedia = _this3.selectPlaylist();\n          }\n\n          if (!selectedMedia || !_this3.shouldSwitchToMedia_(selectedMedia)) {\n            return;\n          }\n\n          _this3.initialMedia_ = selectedMedia;\n\n          _this3.switchMedia_(_this3.initialMedia_, 'initial'); // Under the standard case where a source URL is provided, loadedplaylist will\n          // fire again since the playlist will be requested. In the case of vhs-json\n          // (where the manifest object is provided as the source), when the media\n          // playlist's `segments` list is already available, a media playlist won't be\n          // requested, and loadedplaylist won't fire again, so the playlist handler must be\n          // called on its own here.\n\n\n          var haveJsonSource = _this3.sourceType_ === 'vhs-json' && _this3.initialMedia_.segments;\n\n          if (!haveJsonSource) {\n            return;\n          }\n\n          updatedPlaylist = _this3.initialMedia_;\n        }\n\n        _this3.handleUpdatedMediaPlaylist(updatedPlaylist);\n      });\n      this.masterPlaylistLoader_.on('error', function () {\n        _this3.blacklistCurrentPlaylist(_this3.masterPlaylistLoader_.error);\n      });\n      this.masterPlaylistLoader_.on('mediachanging', function () {\n        _this3.mainSegmentLoader_.abort();\n\n        _this3.mainSegmentLoader_.pause();\n      });\n      this.masterPlaylistLoader_.on('mediachange', function () {\n        var media = _this3.masterPlaylistLoader_.media();\n\n        var requestTimeout = media.targetDuration * 1.5 * 1000; // If we don't have any more available playlists, we don't want to\n        // timeout the request.\n\n        if (isLowestEnabledRendition(_this3.masterPlaylistLoader_.master, _this3.masterPlaylistLoader_.media())) {\n          _this3.requestOptions_.timeout = 0;\n        } else {\n          _this3.requestOptions_.timeout = requestTimeout;\n        } // TODO: Create a new event on the PlaylistLoader that signals\n        // that the segments have changed in some way and use that to\n        // update the SegmentLoader instead of doing it twice here and\n        // on `loadedplaylist`\n\n\n        _this3.mainSegmentLoader_.playlist(media, _this3.requestOptions_);\n\n        _this3.mainSegmentLoader_.load();\n\n        _this3.tech_.trigger({\n          type: 'mediachange',\n          bubbles: true\n        });\n      });\n      this.masterPlaylistLoader_.on('playlistunchanged', function () {\n        var updatedPlaylist = _this3.masterPlaylistLoader_.media(); // ignore unchanged playlists that have already been\n        // excluded for not-changing. We likely just have a really slowly updating\n        // playlist.\n\n\n        if (updatedPlaylist.lastExcludeReason_ === 'playlist-unchanged') {\n          return;\n        }\n\n        var playlistOutdated = _this3.stuckAtPlaylistEnd_(updatedPlaylist);\n\n        if (playlistOutdated) {\n          // Playlist has stopped updating and we're stuck at its end. Try to\n          // blacklist it and switch to another playlist in the hope that that\n          // one is updating (and give the player a chance to re-adjust to the\n          // safe live point).\n          _this3.blacklistCurrentPlaylist({\n            message: 'Playlist no longer updating.',\n            reason: 'playlist-unchanged'\n          }); // useful for monitoring QoS\n\n\n          _this3.tech_.trigger('playliststuck');\n        }\n      });\n      this.masterPlaylistLoader_.on('renditiondisabled', function () {\n        _this3.tech_.trigger({\n          type: 'usage',\n          name: 'vhs-rendition-disabled'\n        });\n\n        _this3.tech_.trigger({\n          type: 'usage',\n          name: 'hls-rendition-disabled'\n        });\n      });\n      this.masterPlaylistLoader_.on('renditionenabled', function () {\n        _this3.tech_.trigger({\n          type: 'usage',\n          name: 'vhs-rendition-enabled'\n        });\n\n        _this3.tech_.trigger({\n          type: 'usage',\n          name: 'hls-rendition-enabled'\n        });\n      });\n    }\n    /**\n     * Given an updated media playlist (whether it was loaded for the first time, or\n     * refreshed for live playlists), update any relevant properties and state to reflect\n     * changes in the media that should be accounted for (e.g., cues and duration).\n     *\n     * @param {Object} updatedPlaylist the updated media playlist object\n     *\n     * @private\n     */\n    ;\n\n    _proto.handleUpdatedMediaPlaylist = function handleUpdatedMediaPlaylist(updatedPlaylist) {\n      if (this.useCueTags_) {\n        this.updateAdCues_(updatedPlaylist);\n      } // TODO: Create a new event on the PlaylistLoader that signals\n      // that the segments have changed in some way and use that to\n      // update the SegmentLoader instead of doing it twice here and\n      // on `mediachange`\n\n\n      this.mainSegmentLoader_.playlist(updatedPlaylist, this.requestOptions_);\n      this.updateDuration(!updatedPlaylist.endList); // If the player isn't paused, ensure that the segment loader is running,\n      // as it is possible that it was temporarily stopped while waiting for\n      // a playlist (e.g., in case the playlist errored and we re-requested it).\n\n      if (!this.tech_.paused()) {\n        this.mainSegmentLoader_.load();\n\n        if (this.audioSegmentLoader_) {\n          this.audioSegmentLoader_.load();\n        }\n      }\n    }\n    /**\n     * A helper function for triggerring presence usage events once per source\n     *\n     * @private\n     */\n    ;\n\n    _proto.triggerPresenceUsage_ = function triggerPresenceUsage_(master, media) {\n      var mediaGroups = master.mediaGroups || {};\n      var defaultDemuxed = true;\n      var audioGroupKeys = Object.keys(mediaGroups.AUDIO);\n\n      for (var mediaGroup in mediaGroups.AUDIO) {\n        for (var label in mediaGroups.AUDIO[mediaGroup]) {\n          var properties = mediaGroups.AUDIO[mediaGroup][label];\n\n          if (!properties.uri) {\n            defaultDemuxed = false;\n          }\n        }\n      }\n\n      if (defaultDemuxed) {\n        this.tech_.trigger({\n          type: 'usage',\n          name: 'vhs-demuxed'\n        });\n        this.tech_.trigger({\n          type: 'usage',\n          name: 'hls-demuxed'\n        });\n      }\n\n      if (Object.keys(mediaGroups.SUBTITLES).length) {\n        this.tech_.trigger({\n          type: 'usage',\n          name: 'vhs-webvtt'\n        });\n        this.tech_.trigger({\n          type: 'usage',\n          name: 'hls-webvtt'\n        });\n      }\n\n      if (Vhs$1.Playlist.isAes(media)) {\n        this.tech_.trigger({\n          type: 'usage',\n          name: 'vhs-aes'\n        });\n        this.tech_.trigger({\n          type: 'usage',\n          name: 'hls-aes'\n        });\n      }\n\n      if (audioGroupKeys.length && Object.keys(mediaGroups.AUDIO[audioGroupKeys[0]]).length > 1) {\n        this.tech_.trigger({\n          type: 'usage',\n          name: 'vhs-alternate-audio'\n        });\n        this.tech_.trigger({\n          type: 'usage',\n          name: 'hls-alternate-audio'\n        });\n      }\n\n      if (this.useCueTags_) {\n        this.tech_.trigger({\n          type: 'usage',\n          name: 'vhs-playlist-cue-tags'\n        });\n        this.tech_.trigger({\n          type: 'usage',\n          name: 'hls-playlist-cue-tags'\n        });\n      }\n    };\n\n    _proto.shouldSwitchToMedia_ = function shouldSwitchToMedia_(nextPlaylist) {\n      var currentPlaylist = this.masterPlaylistLoader_.media() || this.masterPlaylistLoader_.pendingMedia_;\n      var currentTime = this.tech_.currentTime();\n      var bufferLowWaterLine = this.bufferLowWaterLine();\n      var bufferHighWaterLine = this.bufferHighWaterLine();\n      var buffered = this.tech_.buffered();\n      return shouldSwitchToMedia({\n        buffered: buffered,\n        currentTime: currentTime,\n        currentPlaylist: currentPlaylist,\n        nextPlaylist: nextPlaylist,\n        bufferLowWaterLine: bufferLowWaterLine,\n        bufferHighWaterLine: bufferHighWaterLine,\n        duration: this.duration(),\n        experimentalBufferBasedABR: this.experimentalBufferBasedABR,\n        log: this.logger_\n      });\n    }\n    /**\n     * Register event handlers on the segment loaders. A helper function\n     * for construction time.\n     *\n     * @private\n     */\n    ;\n\n    _proto.setupSegmentLoaderListeners_ = function setupSegmentLoaderListeners_() {\n      var _this4 = this;\n\n      if (!this.experimentalBufferBasedABR) {\n        this.mainSegmentLoader_.on('bandwidthupdate', function () {\n          var nextPlaylist = _this4.selectPlaylist();\n\n          if (_this4.shouldSwitchToMedia_(nextPlaylist)) {\n            _this4.switchMedia_(nextPlaylist, 'bandwidthupdate');\n          }\n\n          _this4.tech_.trigger('bandwidthupdate');\n        });\n        this.mainSegmentLoader_.on('progress', function () {\n          _this4.trigger('progress');\n        });\n      }\n\n      this.mainSegmentLoader_.on('error', function () {\n        _this4.blacklistCurrentPlaylist(_this4.mainSegmentLoader_.error());\n      });\n      this.mainSegmentLoader_.on('appenderror', function () {\n        _this4.error = _this4.mainSegmentLoader_.error_;\n\n        _this4.trigger('error');\n      });\n      this.mainSegmentLoader_.on('syncinfoupdate', function () {\n        _this4.onSyncInfoUpdate_();\n      });\n      this.mainSegmentLoader_.on('timestampoffset', function () {\n        _this4.tech_.trigger({\n          type: 'usage',\n          name: 'vhs-timestamp-offset'\n        });\n\n        _this4.tech_.trigger({\n          type: 'usage',\n          name: 'hls-timestamp-offset'\n        });\n      });\n      this.audioSegmentLoader_.on('syncinfoupdate', function () {\n        _this4.onSyncInfoUpdate_();\n      });\n      this.audioSegmentLoader_.on('appenderror', function () {\n        _this4.error = _this4.audioSegmentLoader_.error_;\n\n        _this4.trigger('error');\n      });\n      this.mainSegmentLoader_.on('ended', function () {\n        _this4.logger_('main segment loader ended');\n\n        _this4.onEndOfStream();\n      });\n      this.mainSegmentLoader_.on('earlyabort', function (event) {\n        // never try to early abort with the new ABR algorithm\n        if (_this4.experimentalBufferBasedABR) {\n          return;\n        }\n\n        _this4.delegateLoaders_('all', ['abort']);\n\n        _this4.blacklistCurrentPlaylist({\n          message: 'Aborted early because there isn\\'t enough bandwidth to complete the ' + 'request without rebuffering.'\n        }, ABORT_EARLY_BLACKLIST_SECONDS);\n      });\n\n      var updateCodecs = function updateCodecs() {\n        if (!_this4.sourceUpdater_.hasCreatedSourceBuffers()) {\n          return _this4.tryToCreateSourceBuffers_();\n        }\n\n        var codecs = _this4.getCodecsOrExclude_(); // no codecs means that the playlist was excluded\n\n\n        if (!codecs) {\n          return;\n        }\n\n        _this4.sourceUpdater_.addOrChangeSourceBuffers(codecs);\n      };\n\n      this.mainSegmentLoader_.on('trackinfo', updateCodecs);\n      this.audioSegmentLoader_.on('trackinfo', updateCodecs);\n      this.mainSegmentLoader_.on('fmp4', function () {\n        if (!_this4.triggeredFmp4Usage) {\n          _this4.tech_.trigger({\n            type: 'usage',\n            name: 'vhs-fmp4'\n          });\n\n          _this4.tech_.trigger({\n            type: 'usage',\n            name: 'hls-fmp4'\n          });\n\n          _this4.triggeredFmp4Usage = true;\n        }\n      });\n      this.audioSegmentLoader_.on('fmp4', function () {\n        if (!_this4.triggeredFmp4Usage) {\n          _this4.tech_.trigger({\n            type: 'usage',\n            name: 'vhs-fmp4'\n          });\n\n          _this4.tech_.trigger({\n            type: 'usage',\n            name: 'hls-fmp4'\n          });\n\n          _this4.triggeredFmp4Usage = true;\n        }\n      });\n      this.audioSegmentLoader_.on('ended', function () {\n        _this4.logger_('audioSegmentLoader ended');\n\n        _this4.onEndOfStream();\n      });\n    };\n\n    _proto.mediaSecondsLoaded_ = function mediaSecondsLoaded_() {\n      return Math.max(this.audioSegmentLoader_.mediaSecondsLoaded + this.mainSegmentLoader_.mediaSecondsLoaded);\n    }\n    /**\n     * Call load on our SegmentLoaders\n     */\n    ;\n\n    _proto.load = function load() {\n      this.mainSegmentLoader_.load();\n\n      if (this.mediaTypes_.AUDIO.activePlaylistLoader) {\n        this.audioSegmentLoader_.load();\n      }\n\n      if (this.mediaTypes_.SUBTITLES.activePlaylistLoader) {\n        this.subtitleSegmentLoader_.load();\n      }\n    }\n    /**\n     * Re-tune playback quality level for the current player\n     * conditions without performing destructive actions, like\n     * removing already buffered content\n     *\n     * @private\n     * @deprecated\n     */\n    ;\n\n    _proto.smoothQualityChange_ = function smoothQualityChange_(media) {\n      if (media === void 0) {\n        media = this.selectPlaylist();\n      }\n\n      this.fastQualityChange_(media);\n    }\n    /**\n     * Re-tune playback quality level for the current player\n     * conditions. This method will perform destructive actions like removing\n     * already buffered content in order to readjust the currently active\n     * playlist quickly. This is good for manual quality changes\n     *\n     * @private\n     */\n    ;\n\n    _proto.fastQualityChange_ = function fastQualityChange_(media) {\n      var _this5 = this;\n\n      if (media === void 0) {\n        media = this.selectPlaylist();\n      }\n\n      if (media === this.masterPlaylistLoader_.media()) {\n        this.logger_('skipping fastQualityChange because new media is same as old');\n        return;\n      }\n\n      this.switchMedia_(media, 'fast-quality'); // Delete all buffered data to allow an immediate quality switch, then seek to give\n      // the browser a kick to remove any cached frames from the previous rendtion (.04 seconds\n      // ahead is roughly the minimum that will accomplish this across a variety of content\n      // in IE and Edge, but seeking in place is sufficient on all other browsers)\n      // Edge/IE bug: https://developer.microsoft.com/en-us/microsoft-edge/platform/issues/14600375/\n      // Chrome bug: https://bugs.chromium.org/p/chromium/issues/detail?id=651904\n\n      this.mainSegmentLoader_.resetEverything(function () {\n        // Since this is not a typical seek, we avoid the seekTo method which can cause segments\n        // from the previously enabled rendition to load before the new playlist has finished loading\n        if (videojs.browser.IE_VERSION || videojs.browser.IS_EDGE) {\n          _this5.tech_.setCurrentTime(_this5.tech_.currentTime() + 0.04);\n        } else {\n          _this5.tech_.setCurrentTime(_this5.tech_.currentTime());\n        }\n      }); // don't need to reset audio as it is reset when media changes\n    }\n    /**\n     * Begin playback.\n     */\n    ;\n\n    _proto.play = function play() {\n      if (this.setupFirstPlay()) {\n        return;\n      }\n\n      if (this.tech_.ended()) {\n        this.tech_.setCurrentTime(0);\n      }\n\n      if (this.hasPlayed_) {\n        this.load();\n      }\n\n      var seekable = this.tech_.seekable(); // if the viewer has paused and we fell out of the live window,\n      // seek forward to the live point\n\n      if (this.tech_.duration() === Infinity) {\n        if (this.tech_.currentTime() < seekable.start(0)) {\n          return this.tech_.setCurrentTime(seekable.end(seekable.length - 1));\n        }\n      }\n    }\n    /**\n     * Seek to the latest media position if this is a live video and the\n     * player and video are loaded and initialized.\n     */\n    ;\n\n    _proto.setupFirstPlay = function setupFirstPlay() {\n      var _this6 = this;\n\n      var media = this.masterPlaylistLoader_.media(); // Check that everything is ready to begin buffering for the first call to play\n      //  If 1) there is no active media\n      //     2) the player is paused\n      //     3) the first play has already been setup\n      // then exit early\n\n      if (!media || this.tech_.paused() || this.hasPlayed_) {\n        return false;\n      } // when the video is a live stream\n\n\n      if (!media.endList) {\n        var seekable = this.seekable();\n\n        if (!seekable.length) {\n          // without a seekable range, the player cannot seek to begin buffering at the live\n          // point\n          return false;\n        }\n\n        if (videojs.browser.IE_VERSION && this.tech_.readyState() === 0) {\n          // IE11 throws an InvalidStateError if you try to set currentTime while the\n          // readyState is 0, so it must be delayed until the tech fires loadedmetadata.\n          this.tech_.one('loadedmetadata', function () {\n            _this6.trigger('firstplay');\n\n            _this6.tech_.setCurrentTime(seekable.end(0));\n\n            _this6.hasPlayed_ = true;\n          });\n          return false;\n        } // trigger firstplay to inform the source handler to ignore the next seek event\n\n\n        this.trigger('firstplay'); // seek to the live point\n\n        this.tech_.setCurrentTime(seekable.end(0));\n      }\n\n      this.hasPlayed_ = true; // we can begin loading now that everything is ready\n\n      this.load();\n      return true;\n    }\n    /**\n     * handle the sourceopen event on the MediaSource\n     *\n     * @private\n     */\n    ;\n\n    _proto.handleSourceOpen_ = function handleSourceOpen_() {\n      // Only attempt to create the source buffer if none already exist.\n      // handleSourceOpen is also called when we are \"re-opening\" a source buffer\n      // after `endOfStream` has been called (in response to a seek for instance)\n      this.tryToCreateSourceBuffers_(); // if autoplay is enabled, begin playback. This is duplicative of\n      // code in video.js but is required because play() must be invoked\n      // *after* the media source has opened.\n\n      if (this.tech_.autoplay()) {\n        var playPromise = this.tech_.play(); // Catch/silence error when a pause interrupts a play request\n        // on browsers which return a promise\n\n        if (typeof playPromise !== 'undefined' && typeof playPromise.then === 'function') {\n          playPromise.then(null, function (e) {});\n        }\n      }\n\n      this.trigger('sourceopen');\n    }\n    /**\n     * handle the sourceended event on the MediaSource\n     *\n     * @private\n     */\n    ;\n\n    _proto.handleSourceEnded_ = function handleSourceEnded_() {\n      if (!this.inbandTextTracks_.metadataTrack_) {\n        return;\n      }\n\n      var cues = this.inbandTextTracks_.metadataTrack_.cues;\n\n      if (!cues || !cues.length) {\n        return;\n      }\n\n      var duration = this.duration();\n      cues[cues.length - 1].endTime = isNaN(duration) || Math.abs(duration) === Infinity ? Number.MAX_VALUE : duration;\n    }\n    /**\n     * handle the durationchange event on the MediaSource\n     *\n     * @private\n     */\n    ;\n\n    _proto.handleDurationChange_ = function handleDurationChange_() {\n      this.tech_.trigger('durationchange');\n    }\n    /**\n     * Calls endOfStream on the media source when all active stream types have called\n     * endOfStream\n     *\n     * @param {string} streamType\n     *        Stream type of the segment loader that called endOfStream\n     * @private\n     */\n    ;\n\n    _proto.onEndOfStream = function onEndOfStream() {\n      var isEndOfStream = this.mainSegmentLoader_.ended_;\n\n      if (this.mediaTypes_.AUDIO.activePlaylistLoader) {\n        var mainMediaInfo = this.mainSegmentLoader_.getCurrentMediaInfo_(); // if the audio playlist loader exists, then alternate audio is active\n\n        if (!mainMediaInfo || mainMediaInfo.hasVideo) {\n          // if we do not know if the main segment loader contains video yet or if we\n          // definitively know the main segment loader contains video, then we need to wait\n          // for both main and audio segment loaders to call endOfStream\n          isEndOfStream = isEndOfStream && this.audioSegmentLoader_.ended_;\n        } else {\n          // otherwise just rely on the audio loader\n          isEndOfStream = this.audioSegmentLoader_.ended_;\n        }\n      }\n\n      if (!isEndOfStream) {\n        return;\n      }\n\n      this.stopABRTimer_();\n      this.sourceUpdater_.endOfStream();\n    }\n    /**\n     * Check if a playlist has stopped being updated\n     *\n     * @param {Object} playlist the media playlist object\n     * @return {boolean} whether the playlist has stopped being updated or not\n     */\n    ;\n\n    _proto.stuckAtPlaylistEnd_ = function stuckAtPlaylistEnd_(playlist) {\n      var seekable = this.seekable();\n\n      if (!seekable.length) {\n        // playlist doesn't have enough information to determine whether we are stuck\n        return false;\n      }\n\n      var expired = this.syncController_.getExpiredTime(playlist, this.duration());\n\n      if (expired === null) {\n        return false;\n      } // does not use the safe live end to calculate playlist end, since we\n      // don't want to say we are stuck while there is still content\n\n\n      var absolutePlaylistEnd = Vhs$1.Playlist.playlistEnd(playlist, expired);\n      var currentTime = this.tech_.currentTime();\n      var buffered = this.tech_.buffered();\n\n      if (!buffered.length) {\n        // return true if the playhead reached the absolute end of the playlist\n        return absolutePlaylistEnd - currentTime <= SAFE_TIME_DELTA;\n      }\n\n      var bufferedEnd = buffered.end(buffered.length - 1); // return true if there is too little buffer left and buffer has reached absolute\n      // end of playlist\n\n      return bufferedEnd - currentTime <= SAFE_TIME_DELTA && absolutePlaylistEnd - bufferedEnd <= SAFE_TIME_DELTA;\n    }\n    /**\n     * Blacklists a playlist when an error occurs for a set amount of time\n     * making it unavailable for selection by the rendition selection algorithm\n     * and then forces a new playlist (rendition) selection.\n     *\n     * @param {Object=} error an optional error that may include the playlist\n     * to blacklist\n     * @param {number=} blacklistDuration an optional number of seconds to blacklist the\n     * playlist\n     */\n    ;\n\n    _proto.blacklistCurrentPlaylist = function blacklistCurrentPlaylist(error, blacklistDuration) {\n      if (error === void 0) {\n        error = {};\n      } // If the `error` was generated by the playlist loader, it will contain\n      // the playlist we were trying to load (but failed) and that should be\n      // blacklisted instead of the currently selected playlist which is likely\n      // out-of-date in this scenario\n\n\n      var currentPlaylist = error.playlist || this.masterPlaylistLoader_.media();\n      blacklistDuration = blacklistDuration || error.blacklistDuration || this.blacklistDuration; // If there is no current playlist, then an error occurred while we were\n      // trying to load the master OR while we were disposing of the tech\n\n      if (!currentPlaylist) {\n        this.error = error;\n\n        if (this.mediaSource.readyState !== 'open') {\n          this.trigger('error');\n        } else {\n          this.sourceUpdater_.endOfStream('network');\n        }\n\n        return;\n      }\n\n      currentPlaylist.playlistErrors_++;\n      var playlists = this.masterPlaylistLoader_.master.playlists;\n      var enabledPlaylists = playlists.filter(isEnabled);\n      var isFinalRendition = enabledPlaylists.length === 1 && enabledPlaylists[0] === currentPlaylist; // Don't blacklist the only playlist unless it was blacklisted\n      // forever\n\n      if (playlists.length === 1 && blacklistDuration !== Infinity) {\n        videojs.log.warn(\"Problem encountered with playlist \" + currentPlaylist.id + \". \" + 'Trying again since it is the only playlist.');\n        this.tech_.trigger('retryplaylist'); // if this is a final rendition, we should delay\n\n        return this.masterPlaylistLoader_.load(isFinalRendition);\n      }\n\n      if (isFinalRendition) {\n        // Since we're on the final non-blacklisted playlist, and we're about to blacklist\n        // it, instead of erring the player or retrying this playlist, clear out the current\n        // blacklist. This allows other playlists to be attempted in case any have been\n        // fixed.\n        var reincluded = false;\n        playlists.forEach(function (playlist) {\n          // skip current playlist which is about to be blacklisted\n          if (playlist === currentPlaylist) {\n            return;\n          }\n\n          var excludeUntil = playlist.excludeUntil; // a playlist cannot be reincluded if it wasn't excluded to begin with.\n\n          if (typeof excludeUntil !== 'undefined' && excludeUntil !== Infinity) {\n            reincluded = true;\n            delete playlist.excludeUntil;\n          }\n        });\n\n        if (reincluded) {\n          videojs.log.warn('Removing other playlists from the exclusion list because the last ' + 'rendition is about to be excluded.'); // Technically we are retrying a playlist, in that we are simply retrying a previous\n          // playlist. This is needed for users relying on the retryplaylist event to catch a\n          // case where the player might be stuck and looping through \"dead\" playlists.\n\n          this.tech_.trigger('retryplaylist');\n        }\n      } // Blacklist this playlist\n\n\n      var excludeUntil;\n\n      if (currentPlaylist.playlistErrors_ > this.maxPlaylistRetries) {\n        excludeUntil = Infinity;\n      } else {\n        excludeUntil = Date.now() + blacklistDuration * 1000;\n      }\n\n      currentPlaylist.excludeUntil = excludeUntil;\n\n      if (error.reason) {\n        currentPlaylist.lastExcludeReason_ = error.reason;\n      }\n\n      this.tech_.trigger('blacklistplaylist');\n      this.tech_.trigger({\n        type: 'usage',\n        name: 'vhs-rendition-blacklisted'\n      });\n      this.tech_.trigger({\n        type: 'usage',\n        name: 'hls-rendition-blacklisted'\n      }); // TODO: should we select a new playlist if this blacklist wasn't for the currentPlaylist?\n      // Would be something like media().id !=== currentPlaylist.id and we  would need something\n      // like `pendingMedia` in playlist loaders to check against that too. This will prevent us\n      // from loading a new playlist on any blacklist.\n      // Select a new playlist\n\n      var nextPlaylist = this.selectPlaylist();\n\n      if (!nextPlaylist) {\n        this.error = 'Playback cannot continue. No available working or supported playlists.';\n        this.trigger('error');\n        return;\n      }\n\n      var logFn = error.internal ? this.logger_ : videojs.log.warn;\n      var errorMessage = error.message ? ' ' + error.message : '';\n      logFn((error.internal ? 'Internal problem' : 'Problem') + \" encountered with playlist \" + currentPlaylist.id + \".\" + (errorMessage + \" Switching to playlist \" + nextPlaylist.id + \".\")); // if audio group changed reset audio loaders\n\n      if (nextPlaylist.attributes.AUDIO !== currentPlaylist.attributes.AUDIO) {\n        this.delegateLoaders_('audio', ['abort', 'pause']);\n      } // if subtitle group changed reset subtitle loaders\n\n\n      if (nextPlaylist.attributes.SUBTITLES !== currentPlaylist.attributes.SUBTITLES) {\n        this.delegateLoaders_('subtitle', ['abort', 'pause']);\n      }\n\n      this.delegateLoaders_('main', ['abort', 'pause']);\n      var delayDuration = nextPlaylist.targetDuration / 2 * 1000 || 5 * 1000;\n      var shouldDelay = typeof nextPlaylist.lastRequest === 'number' && Date.now() - nextPlaylist.lastRequest <= delayDuration; // delay if it's a final rendition or if the last refresh is sooner than half targetDuration\n\n      return this.switchMedia_(nextPlaylist, 'exclude', isFinalRendition || shouldDelay);\n    }\n    /**\n     * Pause all segment/playlist loaders\n     */\n    ;\n\n    _proto.pauseLoading = function pauseLoading() {\n      this.delegateLoaders_('all', ['abort', 'pause']);\n      this.stopABRTimer_();\n    }\n    /**\n     * Call a set of functions in order on playlist loaders, segment loaders,\n     * or both types of loaders.\n     *\n     * @param {string} filter\n     *        Filter loaders that should call fnNames using a string. Can be:\n     *        * all - run on all loaders\n     *        * audio - run on all audio loaders\n     *        * subtitle - run on all subtitle loaders\n     *        * main - run on the main/master loaders\n     *\n     * @param {Array|string} fnNames\n     *        A string or array of function names to call.\n     */\n    ;\n\n    _proto.delegateLoaders_ = function delegateLoaders_(filter, fnNames) {\n      var _this7 = this;\n\n      var loaders = [];\n      var dontFilterPlaylist = filter === 'all';\n\n      if (dontFilterPlaylist || filter === 'main') {\n        loaders.push(this.masterPlaylistLoader_);\n      }\n\n      var mediaTypes = [];\n\n      if (dontFilterPlaylist || filter === 'audio') {\n        mediaTypes.push('AUDIO');\n      }\n\n      if (dontFilterPlaylist || filter === 'subtitle') {\n        mediaTypes.push('CLOSED-CAPTIONS');\n        mediaTypes.push('SUBTITLES');\n      }\n\n      mediaTypes.forEach(function (mediaType) {\n        var loader = _this7.mediaTypes_[mediaType] && _this7.mediaTypes_[mediaType].activePlaylistLoader;\n\n        if (loader) {\n          loaders.push(loader);\n        }\n      });\n      ['main', 'audio', 'subtitle'].forEach(function (name) {\n        var loader = _this7[name + \"SegmentLoader_\"];\n\n        if (loader && (filter === name || filter === 'all')) {\n          loaders.push(loader);\n        }\n      });\n      loaders.forEach(function (loader) {\n        return fnNames.forEach(function (fnName) {\n          if (typeof loader[fnName] === 'function') {\n            loader[fnName]();\n          }\n        });\n      });\n    }\n    /**\n     * set the current time on all segment loaders\n     *\n     * @param {TimeRange} currentTime the current time to set\n     * @return {TimeRange} the current time\n     */\n    ;\n\n    _proto.setCurrentTime = function setCurrentTime(currentTime) {\n      var buffered = findRange(this.tech_.buffered(), currentTime);\n\n      if (!(this.masterPlaylistLoader_ && this.masterPlaylistLoader_.media())) {\n        // return immediately if the metadata is not ready yet\n        return 0;\n      } // it's clearly an edge-case but don't thrown an error if asked to\n      // seek within an empty playlist\n\n\n      if (!this.masterPlaylistLoader_.media().segments) {\n        return 0;\n      } // if the seek location is already buffered, continue buffering as usual\n\n\n      if (buffered && buffered.length) {\n        return currentTime;\n      } // cancel outstanding requests so we begin buffering at the new\n      // location\n\n\n      this.mainSegmentLoader_.resetEverything();\n      this.mainSegmentLoader_.abort();\n\n      if (this.mediaTypes_.AUDIO.activePlaylistLoader) {\n        this.audioSegmentLoader_.resetEverything();\n        this.audioSegmentLoader_.abort();\n      }\n\n      if (this.mediaTypes_.SUBTITLES.activePlaylistLoader) {\n        this.subtitleSegmentLoader_.resetEverything();\n        this.subtitleSegmentLoader_.abort();\n      } // start segment loader loading in case they are paused\n\n\n      this.load();\n    }\n    /**\n     * get the current duration\n     *\n     * @return {TimeRange} the duration\n     */\n    ;\n\n    _proto.duration = function duration() {\n      if (!this.masterPlaylistLoader_) {\n        return 0;\n      }\n\n      var media = this.masterPlaylistLoader_.media();\n\n      if (!media) {\n        // no playlists loaded yet, so can't determine a duration\n        return 0;\n      } // Don't rely on the media source for duration in the case of a live playlist since\n      // setting the native MediaSource's duration to infinity ends up with consequences to\n      // seekable behavior. See https://github.com/w3c/media-source/issues/5 for details.\n      //\n      // This is resolved in the spec by https://github.com/w3c/media-source/pull/92,\n      // however, few browsers have support for setLiveSeekableRange()\n      // https://developer.mozilla.org/en-US/docs/Web/API/MediaSource/setLiveSeekableRange\n      //\n      // Until a time when the duration of the media source can be set to infinity, and a\n      // seekable range specified across browsers, just return Infinity.\n\n\n      if (!media.endList) {\n        return Infinity;\n      } // Since this is a VOD video, it is safe to rely on the media source's duration (if\n      // available). If it's not available, fall back to a playlist-calculated estimate.\n\n\n      if (this.mediaSource) {\n        return this.mediaSource.duration;\n      }\n\n      return Vhs$1.Playlist.duration(media);\n    }\n    /**\n     * check the seekable range\n     *\n     * @return {TimeRange} the seekable range\n     */\n    ;\n\n    _proto.seekable = function seekable() {\n      return this.seekable_;\n    };\n\n    _proto.onSyncInfoUpdate_ = function onSyncInfoUpdate_() {\n      var audioSeekable; // TODO check for creation of both source buffers before updating seekable\n      //\n      // A fix was made to this function where a check for\n      // this.sourceUpdater_.hasCreatedSourceBuffers\n      // was added to ensure that both source buffers were created before seekable was\n      // updated. However, it originally had a bug where it was checking for a true and\n      // returning early instead of checking for false. Setting it to check for false to\n      // return early though created other issues. A call to play() would check for seekable\n      // end without verifying that a seekable range was present. In addition, even checking\n      // for that didn't solve some issues, as handleFirstPlay is sometimes worked around\n      // due to a media update calling load on the segment loaders, skipping a seek to live,\n      // thereby starting live streams at the beginning of the stream rather than at the end.\n      //\n      // This conditional should be fixed to wait for the creation of two source buffers at\n      // the same time as the other sections of code are fixed to properly seek to live and\n      // not throw an error due to checking for a seekable end when no seekable range exists.\n      //\n      // For now, fall back to the older behavior, with the understanding that the seekable\n      // range may not be completely correct, leading to a suboptimal initial live point.\n\n      if (!this.masterPlaylistLoader_) {\n        return;\n      }\n\n      var media = this.masterPlaylistLoader_.media();\n\n      if (!media) {\n        return;\n      }\n\n      var expired = this.syncController_.getExpiredTime(media, this.duration());\n\n      if (expired === null) {\n        // not enough information to update seekable\n        return;\n      }\n\n      var master = this.masterPlaylistLoader_.master;\n      var mainSeekable = Vhs$1.Playlist.seekable(media, expired, Vhs$1.Playlist.liveEdgeDelay(master, media));\n\n      if (mainSeekable.length === 0) {\n        return;\n      }\n\n      if (this.mediaTypes_.AUDIO.activePlaylistLoader) {\n        media = this.mediaTypes_.AUDIO.activePlaylistLoader.media();\n        expired = this.syncController_.getExpiredTime(media, this.duration());\n\n        if (expired === null) {\n          return;\n        }\n\n        audioSeekable = Vhs$1.Playlist.seekable(media, expired, Vhs$1.Playlist.liveEdgeDelay(master, media));\n\n        if (audioSeekable.length === 0) {\n          return;\n        }\n      }\n\n      var oldEnd;\n      var oldStart;\n\n      if (this.seekable_ && this.seekable_.length) {\n        oldEnd = this.seekable_.end(0);\n        oldStart = this.seekable_.start(0);\n      }\n\n      if (!audioSeekable) {\n        // seekable has been calculated based on buffering video data so it\n        // can be returned directly\n        this.seekable_ = mainSeekable;\n      } else if (audioSeekable.start(0) > mainSeekable.end(0) || mainSeekable.start(0) > audioSeekable.end(0)) {\n        // seekables are pretty far off, rely on main\n        this.seekable_ = mainSeekable;\n      } else {\n        this.seekable_ = videojs.createTimeRanges([[audioSeekable.start(0) > mainSeekable.start(0) ? audioSeekable.start(0) : mainSeekable.start(0), audioSeekable.end(0) < mainSeekable.end(0) ? audioSeekable.end(0) : mainSeekable.end(0)]]);\n      } // seekable is the same as last time\n\n\n      if (this.seekable_ && this.seekable_.length) {\n        if (this.seekable_.end(0) === oldEnd && this.seekable_.start(0) === oldStart) {\n          return;\n        }\n      }\n\n      this.logger_(\"seekable updated [\" + printableRange(this.seekable_) + \"]\");\n      this.tech_.trigger('seekablechanged');\n    }\n    /**\n     * Update the player duration\n     */\n    ;\n\n    _proto.updateDuration = function updateDuration(isLive) {\n      if (this.updateDuration_) {\n        this.mediaSource.removeEventListener('sourceopen', this.updateDuration_);\n        this.updateDuration_ = null;\n      }\n\n      if (this.mediaSource.readyState !== 'open') {\n        this.updateDuration_ = this.updateDuration.bind(this, isLive);\n        this.mediaSource.addEventListener('sourceopen', this.updateDuration_);\n        return;\n      }\n\n      if (isLive) {\n        var seekable = this.seekable();\n\n        if (!seekable.length) {\n          return;\n        } // Even in the case of a live playlist, the native MediaSource's duration should not\n        // be set to Infinity (even though this would be expected for a live playlist), since\n        // setting the native MediaSource's duration to infinity ends up with consequences to\n        // seekable behavior. See https://github.com/w3c/media-source/issues/5 for details.\n        //\n        // This is resolved in the spec by https://github.com/w3c/media-source/pull/92,\n        // however, few browsers have support for setLiveSeekableRange()\n        // https://developer.mozilla.org/en-US/docs/Web/API/MediaSource/setLiveSeekableRange\n        //\n        // Until a time when the duration of the media source can be set to infinity, and a\n        // seekable range specified across browsers, the duration should be greater than or\n        // equal to the last possible seekable value.\n        // MediaSource duration starts as NaN\n        // It is possible (and probable) that this case will never be reached for many\n        // sources, since the MediaSource reports duration as the highest value without\n        // accounting for timestamp offset. For example, if the timestamp offset is -100 and\n        // we buffered times 0 to 100 with real times of 100 to 200, even though current\n        // time will be between 0 and 100, the native media source may report the duration\n        // as 200. However, since we report duration separate from the media source (as\n        // Infinity), and as long as the native media source duration value is greater than\n        // our reported seekable range, seeks will work as expected. The large number as\n        // duration for live is actually a strategy used by some players to work around the\n        // issue of live seekable ranges cited above.\n\n\n        if (isNaN(this.mediaSource.duration) || this.mediaSource.duration < seekable.end(seekable.length - 1)) {\n          this.sourceUpdater_.setDuration(seekable.end(seekable.length - 1));\n        }\n\n        return;\n      }\n\n      var buffered = this.tech_.buffered();\n      var duration = Vhs$1.Playlist.duration(this.masterPlaylistLoader_.media());\n\n      if (buffered.length > 0) {\n        duration = Math.max(duration, buffered.end(buffered.length - 1));\n      }\n\n      if (this.mediaSource.duration !== duration) {\n        this.sourceUpdater_.setDuration(duration);\n      }\n    }\n    /**\n     * dispose of the MasterPlaylistController and everything\n     * that it controls\n     */\n    ;\n\n    _proto.dispose = function dispose() {\n      var _this8 = this;\n\n      this.trigger('dispose');\n      this.decrypter_.terminate();\n      this.masterPlaylistLoader_.dispose();\n      this.mainSegmentLoader_.dispose();\n\n      if (this.loadOnPlay_) {\n        this.tech_.off('play', this.loadOnPlay_);\n      }\n\n      ['AUDIO', 'SUBTITLES'].forEach(function (type) {\n        var groups = _this8.mediaTypes_[type].groups;\n\n        for (var id in groups) {\n          groups[id].forEach(function (group) {\n            if (group.playlistLoader) {\n              group.playlistLoader.dispose();\n            }\n          });\n        }\n      });\n      this.audioSegmentLoader_.dispose();\n      this.subtitleSegmentLoader_.dispose();\n      this.sourceUpdater_.dispose();\n      this.timelineChangeController_.dispose();\n      this.stopABRTimer_();\n\n      if (this.updateDuration_) {\n        this.mediaSource.removeEventListener('sourceopen', this.updateDuration_);\n      }\n\n      this.mediaSource.removeEventListener('durationchange', this.handleDurationChange_); // load the media source into the player\n\n      this.mediaSource.removeEventListener('sourceopen', this.handleSourceOpen_);\n      this.mediaSource.removeEventListener('sourceended', this.handleSourceEnded_);\n      this.off();\n    }\n    /**\n     * return the master playlist object if we have one\n     *\n     * @return {Object} the master playlist object that we parsed\n     */\n    ;\n\n    _proto.master = function master() {\n      return this.masterPlaylistLoader_.master;\n    }\n    /**\n     * return the currently selected playlist\n     *\n     * @return {Object} the currently selected playlist object that we parsed\n     */\n    ;\n\n    _proto.media = function media() {\n      // playlist loader will not return media if it has not been fully loaded\n      return this.masterPlaylistLoader_.media() || this.initialMedia_;\n    };\n\n    _proto.areMediaTypesKnown_ = function areMediaTypesKnown_() {\n      var usingAudioLoader = !!this.mediaTypes_.AUDIO.activePlaylistLoader;\n      var hasMainMediaInfo = !!this.mainSegmentLoader_.getCurrentMediaInfo_(); // if we are not using an audio loader, then we have audio media info\n      // otherwise check on the segment loader.\n\n      var hasAudioMediaInfo = !usingAudioLoader ? true : !!this.audioSegmentLoader_.getCurrentMediaInfo_(); // one or both loaders has not loaded sufficently to get codecs\n\n      if (!hasMainMediaInfo || !hasAudioMediaInfo) {\n        return false;\n      }\n\n      return true;\n    };\n\n    _proto.getCodecsOrExclude_ = function getCodecsOrExclude_() {\n      var _this9 = this;\n\n      var media = {\n        main: this.mainSegmentLoader_.getCurrentMediaInfo_() || {},\n        audio: this.audioSegmentLoader_.getCurrentMediaInfo_() || {}\n      }; // set \"main\" media equal to video\n\n      media.video = media.main;\n      var playlistCodecs = codecsForPlaylist(this.master(), this.media());\n      var codecs = {};\n      var usingAudioLoader = !!this.mediaTypes_.AUDIO.activePlaylistLoader;\n\n      if (media.main.hasVideo) {\n        codecs.video = playlistCodecs.video || media.main.videoCodec || DEFAULT_VIDEO_CODEC;\n      }\n\n      if (media.main.isMuxed) {\n        codecs.video += \",\" + (playlistCodecs.audio || media.main.audioCodec || DEFAULT_AUDIO_CODEC);\n      }\n\n      if (media.main.hasAudio && !media.main.isMuxed || media.audio.hasAudio || usingAudioLoader) {\n        codecs.audio = playlistCodecs.audio || media.main.audioCodec || media.audio.audioCodec || DEFAULT_AUDIO_CODEC; // set audio isFmp4 so we use the correct \"supports\" function below\n\n        media.audio.isFmp4 = media.main.hasAudio && !media.main.isMuxed ? media.main.isFmp4 : media.audio.isFmp4;\n      } // no codecs, no playback.\n\n\n      if (!codecs.audio && !codecs.video) {\n        this.blacklistCurrentPlaylist({\n          playlist: this.media(),\n          message: 'Could not determine codecs for playlist.',\n          blacklistDuration: Infinity\n        });\n        return;\n      } // fmp4 relies on browser support, while ts relies on muxer support\n\n\n      var supportFunction = function supportFunction(isFmp4, codec) {\n        return isFmp4 ? browserSupportsCodec(codec) : muxerSupportsCodec(codec);\n      };\n\n      var unsupportedCodecs = {};\n      var unsupportedAudio;\n      ['video', 'audio'].forEach(function (type) {\n        if (codecs.hasOwnProperty(type) && !supportFunction(media[type].isFmp4, codecs[type])) {\n          var supporter = media[type].isFmp4 ? 'browser' : 'muxer';\n          unsupportedCodecs[supporter] = unsupportedCodecs[supporter] || [];\n          unsupportedCodecs[supporter].push(codecs[type]);\n\n          if (type === 'audio') {\n            unsupportedAudio = supporter;\n          }\n        }\n      });\n\n      if (usingAudioLoader && unsupportedAudio && this.media().attributes.AUDIO) {\n        var audioGroup = this.media().attributes.AUDIO;\n        this.master().playlists.forEach(function (variant) {\n          var variantAudioGroup = variant.attributes && variant.attributes.AUDIO;\n\n          if (variantAudioGroup === audioGroup && variant !== _this9.media()) {\n            variant.excludeUntil = Infinity;\n          }\n        });\n        this.logger_(\"excluding audio group \" + audioGroup + \" as \" + unsupportedAudio + \" does not support codec(s): \\\"\" + codecs.audio + \"\\\"\");\n      } // if we have any unsupported codecs blacklist this playlist.\n\n\n      if (Object.keys(unsupportedCodecs).length) {\n        var message = Object.keys(unsupportedCodecs).reduce(function (acc, supporter) {\n          if (acc) {\n            acc += ', ';\n          }\n\n          acc += supporter + \" does not support codec(s): \\\"\" + unsupportedCodecs[supporter].join(',') + \"\\\"\";\n          return acc;\n        }, '') + '.';\n        this.blacklistCurrentPlaylist({\n          playlist: this.media(),\n          internal: true,\n          message: message,\n          blacklistDuration: Infinity\n        });\n        return;\n      } // check if codec switching is happening\n\n\n      if (this.sourceUpdater_.hasCreatedSourceBuffers() && !this.sourceUpdater_.canChangeType()) {\n        var switchMessages = [];\n        ['video', 'audio'].forEach(function (type) {\n          var newCodec = (parseCodecs(_this9.sourceUpdater_.codecs[type] || '')[0] || {}).type;\n          var oldCodec = (parseCodecs(codecs[type] || '')[0] || {}).type;\n\n          if (newCodec && oldCodec && newCodec.toLowerCase() !== oldCodec.toLowerCase()) {\n            switchMessages.push(\"\\\"\" + _this9.sourceUpdater_.codecs[type] + \"\\\" -> \\\"\" + codecs[type] + \"\\\"\");\n          }\n        });\n\n        if (switchMessages.length) {\n          this.blacklistCurrentPlaylist({\n            playlist: this.media(),\n            message: \"Codec switching not supported: \" + switchMessages.join(', ') + \".\",\n            blacklistDuration: Infinity,\n            internal: true\n          });\n          return;\n        }\n      } // TODO: when using the muxer shouldn't we just return\n      // the codecs that the muxer outputs?\n\n\n      return codecs;\n    }\n    /**\n     * Create source buffers and exlude any incompatible renditions.\n     *\n     * @private\n     */\n    ;\n\n    _proto.tryToCreateSourceBuffers_ = function tryToCreateSourceBuffers_() {\n      // media source is not ready yet or sourceBuffers are already\n      // created.\n      if (this.mediaSource.readyState !== 'open' || this.sourceUpdater_.hasCreatedSourceBuffers()) {\n        return;\n      }\n\n      if (!this.areMediaTypesKnown_()) {\n        return;\n      }\n\n      var codecs = this.getCodecsOrExclude_(); // no codecs means that the playlist was excluded\n\n      if (!codecs) {\n        return;\n      }\n\n      this.sourceUpdater_.createSourceBuffers(codecs);\n      var codecString = [codecs.video, codecs.audio].filter(Boolean).join(',');\n      this.excludeIncompatibleVariants_(codecString);\n    }\n    /**\n     * Excludes playlists with codecs that are unsupported by the muxer and browser.\n     */\n    ;\n\n    _proto.excludeUnsupportedVariants_ = function excludeUnsupportedVariants_() {\n      var _this10 = this;\n\n      var playlists = this.master().playlists;\n      var ids = []; // TODO: why don't we have a property to loop through all\n      // playlist? Why did we ever mix indexes and keys?\n\n      Object.keys(playlists).forEach(function (key) {\n        var variant = playlists[key]; // check if we already processed this playlist.\n\n        if (ids.indexOf(variant.id) !== -1) {\n          return;\n        }\n\n        ids.push(variant.id);\n        var codecs = codecsForPlaylist(_this10.master, variant);\n        var unsupported = [];\n\n        if (codecs.audio && !muxerSupportsCodec(codecs.audio) && !browserSupportsCodec(codecs.audio)) {\n          unsupported.push(\"audio codec \" + codecs.audio);\n        }\n\n        if (codecs.video && !muxerSupportsCodec(codecs.video) && !browserSupportsCodec(codecs.video)) {\n          unsupported.push(\"video codec \" + codecs.video);\n        }\n\n        if (codecs.text && codecs.text === 'stpp.ttml.im1t') {\n          unsupported.push(\"text codec \" + codecs.text);\n        }\n\n        if (unsupported.length) {\n          variant.excludeUntil = Infinity;\n\n          _this10.logger_(\"excluding \" + variant.id + \" for unsupported: \" + unsupported.join(', '));\n        }\n      });\n    }\n    /**\n     * Blacklist playlists that are known to be codec or\n     * stream-incompatible with the SourceBuffer configuration. For\n     * instance, Media Source Extensions would cause the video element to\n     * stall waiting for video data if you switched from a variant with\n     * video and audio to an audio-only one.\n     *\n     * @param {Object} media a media playlist compatible with the current\n     * set of SourceBuffers. Variants in the current master playlist that\n     * do not appear to have compatible codec or stream configurations\n     * will be excluded from the default playlist selection algorithm\n     * indefinitely.\n     * @private\n     */\n    ;\n\n    _proto.excludeIncompatibleVariants_ = function excludeIncompatibleVariants_(codecString) {\n      var _this11 = this;\n\n      var ids = [];\n      var playlists = this.master().playlists;\n      var codecs = unwrapCodecList(parseCodecs(codecString));\n      var codecCount_ = codecCount(codecs);\n      var videoDetails = codecs.video && parseCodecs(codecs.video)[0] || null;\n      var audioDetails = codecs.audio && parseCodecs(codecs.audio)[0] || null;\n      Object.keys(playlists).forEach(function (key) {\n        var variant = playlists[key]; // check if we already processed this playlist.\n        // or it if it is already excluded forever.\n\n        if (ids.indexOf(variant.id) !== -1 || variant.excludeUntil === Infinity) {\n          return;\n        }\n\n        ids.push(variant.id);\n        var blacklistReasons = []; // get codecs from the playlist for this variant\n\n        var variantCodecs = codecsForPlaylist(_this11.masterPlaylistLoader_.master, variant);\n        var variantCodecCount = codecCount(variantCodecs); // if no codecs are listed, we cannot determine that this\n        // variant is incompatible. Wait for mux.js to probe\n\n        if (!variantCodecs.audio && !variantCodecs.video) {\n          return;\n        } // TODO: we can support this by removing the\n        // old media source and creating a new one, but it will take some work.\n        // The number of streams cannot change\n\n\n        if (variantCodecCount !== codecCount_) {\n          blacklistReasons.push(\"codec count \\\"\" + variantCodecCount + \"\\\" !== \\\"\" + codecCount_ + \"\\\"\");\n        } // only exclude playlists by codec change, if codecs cannot switch\n        // during playback.\n\n\n        if (!_this11.sourceUpdater_.canChangeType()) {\n          var variantVideoDetails = variantCodecs.video && parseCodecs(variantCodecs.video)[0] || null;\n          var variantAudioDetails = variantCodecs.audio && parseCodecs(variantCodecs.audio)[0] || null; // the video codec cannot change\n\n          if (variantVideoDetails && videoDetails && variantVideoDetails.type.toLowerCase() !== videoDetails.type.toLowerCase()) {\n            blacklistReasons.push(\"video codec \\\"\" + variantVideoDetails.type + \"\\\" !== \\\"\" + videoDetails.type + \"\\\"\");\n          } // the audio codec cannot change\n\n\n          if (variantAudioDetails && audioDetails && variantAudioDetails.type.toLowerCase() !== audioDetails.type.toLowerCase()) {\n            blacklistReasons.push(\"audio codec \\\"\" + variantAudioDetails.type + \"\\\" !== \\\"\" + audioDetails.type + \"\\\"\");\n          }\n        }\n\n        if (blacklistReasons.length) {\n          variant.excludeUntil = Infinity;\n\n          _this11.logger_(\"blacklisting \" + variant.id + \": \" + blacklistReasons.join(' && '));\n        }\n      });\n    };\n\n    _proto.updateAdCues_ = function updateAdCues_(media) {\n      var offset = 0;\n      var seekable = this.seekable();\n\n      if (seekable.length) {\n        offset = seekable.start(0);\n      }\n\n      updateAdCues(media, this.cueTagsTrack_, offset);\n    }\n    /**\n     * Calculates the desired forward buffer length based on current time\n     *\n     * @return {number} Desired forward buffer length in seconds\n     */\n    ;\n\n    _proto.goalBufferLength = function goalBufferLength() {\n      var currentTime = this.tech_.currentTime();\n      var initial = Config.GOAL_BUFFER_LENGTH;\n      var rate = Config.GOAL_BUFFER_LENGTH_RATE;\n      var max = Math.max(initial, Config.MAX_GOAL_BUFFER_LENGTH);\n      return Math.min(initial + currentTime * rate, max);\n    }\n    /**\n     * Calculates the desired buffer low water line based on current time\n     *\n     * @return {number} Desired buffer low water line in seconds\n     */\n    ;\n\n    _proto.bufferLowWaterLine = function bufferLowWaterLine() {\n      var currentTime = this.tech_.currentTime();\n      var initial = Config.BUFFER_LOW_WATER_LINE;\n      var rate = Config.BUFFER_LOW_WATER_LINE_RATE;\n      var max = Math.max(initial, Config.MAX_BUFFER_LOW_WATER_LINE);\n      var newMax = Math.max(initial, Config.EXPERIMENTAL_MAX_BUFFER_LOW_WATER_LINE);\n      return Math.min(initial + currentTime * rate, this.experimentalBufferBasedABR ? newMax : max);\n    };\n\n    _proto.bufferHighWaterLine = function bufferHighWaterLine() {\n      return Config.BUFFER_HIGH_WATER_LINE;\n    };\n\n    return MasterPlaylistController;\n  }(videojs.EventTarget);\n  /**\n   * Returns a function that acts as the Enable/disable playlist function.\n   *\n   * @param {PlaylistLoader} loader - The master playlist loader\n   * @param {string} playlistID - id of the playlist\n   * @param {Function} changePlaylistFn - A function to be called after a\n   * playlist's enabled-state has been changed. Will NOT be called if a\n   * playlist's enabled-state is unchanged\n   * @param {boolean=} enable - Value to set the playlist enabled-state to\n   * or if undefined returns the current enabled-state for the playlist\n   * @return {Function} Function for setting/getting enabled\n   */\n\n\n  var enableFunction = function enableFunction(loader, playlistID, changePlaylistFn) {\n    return function (enable) {\n      var playlist = loader.master.playlists[playlistID];\n      var incompatible = isIncompatible(playlist);\n      var currentlyEnabled = isEnabled(playlist);\n\n      if (typeof enable === 'undefined') {\n        return currentlyEnabled;\n      }\n\n      if (enable) {\n        delete playlist.disabled;\n      } else {\n        playlist.disabled = true;\n      }\n\n      if (enable !== currentlyEnabled && !incompatible) {\n        // Ensure the outside world knows about our changes\n        changePlaylistFn();\n\n        if (enable) {\n          loader.trigger('renditionenabled');\n        } else {\n          loader.trigger('renditiondisabled');\n        }\n      }\n\n      return enable;\n    };\n  };\n  /**\n   * The representation object encapsulates the publicly visible information\n   * in a media playlist along with a setter/getter-type function (enabled)\n   * for changing the enabled-state of a particular playlist entry\n   *\n   * @class Representation\n   */\n\n\n  var Representation = function Representation(vhsHandler, playlist, id) {\n    var mpc = vhsHandler.masterPlaylistController_,\n        smoothQualityChange = vhsHandler.options_.smoothQualityChange; // Get a reference to a bound version of the quality change function\n\n    var changeType = smoothQualityChange ? 'smooth' : 'fast';\n    var qualityChangeFunction = mpc[changeType + \"QualityChange_\"].bind(mpc); // some playlist attributes are optional\n\n    if (playlist.attributes) {\n      var resolution = playlist.attributes.RESOLUTION;\n      this.width = resolution && resolution.width;\n      this.height = resolution && resolution.height;\n      this.bandwidth = playlist.attributes.BANDWIDTH;\n    }\n\n    this.codecs = codecsForPlaylist(mpc.master(), playlist);\n    this.playlist = playlist; // The id is simply the ordinality of the media playlist\n    // within the master playlist\n\n    this.id = id; // Partially-apply the enableFunction to create a playlist-\n    // specific variant\n\n    this.enabled = enableFunction(vhsHandler.playlists, playlist.id, qualityChangeFunction);\n  };\n  /**\n   * A mixin function that adds the `representations` api to an instance\n   * of the VhsHandler class\n   *\n   * @param {VhsHandler} vhsHandler - An instance of VhsHandler to add the\n   * representation API into\n   */\n\n\n  var renditionSelectionMixin = function renditionSelectionMixin(vhsHandler) {\n    // Add a single API-specific function to the VhsHandler instance\n    vhsHandler.representations = function () {\n      var master = vhsHandler.masterPlaylistController_.master();\n      var playlists = isAudioOnly(master) ? vhsHandler.masterPlaylistController_.getAudioTrackPlaylists_() : master.playlists;\n\n      if (!playlists) {\n        return [];\n      }\n\n      return playlists.filter(function (media) {\n        return !isIncompatible(media);\n      }).map(function (e, i) {\n        return new Representation(vhsHandler, e, e.id);\n      });\n    };\n  };\n  /**\n   * @file playback-watcher.js\n   *\n   * Playback starts, and now my watch begins. It shall not end until my death. I shall\n   * take no wait, hold no uncleared timeouts, father no bad seeks. I shall wear no crowns\n   * and win no glory. I shall live and die at my post. I am the corrector of the underflow.\n   * I am the watcher of gaps. I am the shield that guards the realms of seekable. I pledge\n   * my life and honor to the Playback Watch, for this Player and all the Players to come.\n   */\n\n\n  var timerCancelEvents = ['seeking', 'seeked', 'pause', 'playing', 'error'];\n  /**\n   * @class PlaybackWatcher\n   */\n\n  var PlaybackWatcher = /*#__PURE__*/function () {\n    /**\n     * Represents an PlaybackWatcher object.\n     *\n     * @class\n     * @param {Object} options an object that includes the tech and settings\n     */\n    function PlaybackWatcher(options) {\n      var _this = this;\n\n      this.masterPlaylistController_ = options.masterPlaylistController;\n      this.tech_ = options.tech;\n      this.seekable = options.seekable;\n      this.allowSeeksWithinUnsafeLiveWindow = options.allowSeeksWithinUnsafeLiveWindow;\n      this.liveRangeSafeTimeDelta = options.liveRangeSafeTimeDelta;\n      this.media = options.media;\n      this.consecutiveUpdates = 0;\n      this.lastRecordedTime = null;\n      this.timer_ = null;\n      this.checkCurrentTimeTimeout_ = null;\n      this.logger_ = logger('PlaybackWatcher');\n      this.logger_('initialize');\n\n      var playHandler = function playHandler() {\n        return _this.monitorCurrentTime_();\n      };\n\n      var canPlayHandler = function canPlayHandler() {\n        return _this.monitorCurrentTime_();\n      };\n\n      var waitingHandler = function waitingHandler() {\n        return _this.techWaiting_();\n      };\n\n      var cancelTimerHandler = function cancelTimerHandler() {\n        return _this.cancelTimer_();\n      };\n\n      var mpc = this.masterPlaylistController_;\n      var loaderTypes = ['main', 'subtitle', 'audio'];\n      var loaderChecks = {};\n      loaderTypes.forEach(function (type) {\n        loaderChecks[type] = {\n          reset: function reset() {\n            return _this.resetSegmentDownloads_(type);\n          },\n          updateend: function updateend() {\n            return _this.checkSegmentDownloads_(type);\n          }\n        };\n        mpc[type + \"SegmentLoader_\"].on('appendsdone', loaderChecks[type].updateend); // If a rendition switch happens during a playback stall where the buffer\n        // isn't changing we want to reset. We cannot assume that the new rendition\n        // will also be stalled, until after new appends.\n\n        mpc[type + \"SegmentLoader_\"].on('playlistupdate', loaderChecks[type].reset); // Playback stalls should not be detected right after seeking.\n        // This prevents one segment playlists (single vtt or single segment content)\n        // from being detected as stalling. As the buffer will not change in those cases, since\n        // the buffer is the entire video duration.\n\n        _this.tech_.on(['seeked', 'seeking'], loaderChecks[type].reset);\n      });\n      /**\n       * We check if a seek was into a gap through the following steps:\n       * 1. We get a seeking event and we do not get a seeked event. This means that\n       *    a seek was attempted but not completed.\n       * 2. We run `fixesBadSeeks_` on segment loader appends. This means that we already\n       *    removed everything from our buffer and appended a segment, and should be ready\n       *    to check for gaps.\n       */\n\n      var setSeekingHandlers = function setSeekingHandlers(fn) {\n        ['main', 'audio'].forEach(function (type) {\n          mpc[type + \"SegmentLoader_\"][fn]('appended', _this.seekingAppendCheck_);\n        });\n      };\n\n      this.seekingAppendCheck_ = function () {\n        if (_this.fixesBadSeeks_()) {\n          _this.consecutiveUpdates = 0;\n          _this.lastRecordedTime = _this.tech_.currentTime();\n          setSeekingHandlers('off');\n        }\n      };\n\n      this.clearSeekingAppendCheck_ = function () {\n        return setSeekingHandlers('off');\n      };\n\n      this.watchForBadSeeking_ = function () {\n        _this.clearSeekingAppendCheck_();\n\n        setSeekingHandlers('on');\n      };\n\n      this.tech_.on('seeked', this.clearSeekingAppendCheck_);\n      this.tech_.on('seeking', this.watchForBadSeeking_);\n      this.tech_.on('waiting', waitingHandler);\n      this.tech_.on(timerCancelEvents, cancelTimerHandler);\n      this.tech_.on('canplay', canPlayHandler);\n      /*\n        An edge case exists that results in gaps not being skipped when they exist at the beginning of a stream. This case\n        is surfaced in one of two ways:\n         1)  The `waiting` event is fired before the player has buffered content, making it impossible\n            to find or skip the gap. The `waiting` event is followed by a `play` event. On first play\n            we can check if playback is stalled due to a gap, and skip the gap if necessary.\n        2)  A source with a gap at the beginning of the stream is loaded programatically while the player\n            is in a playing state. To catch this case, it's important that our one-time play listener is setup\n            even if the player is in a playing state\n      */\n\n      this.tech_.one('play', playHandler); // Define the dispose function to clean up our events\n\n      this.dispose = function () {\n        _this.clearSeekingAppendCheck_();\n\n        _this.logger_('dispose');\n\n        _this.tech_.off('waiting', waitingHandler);\n\n        _this.tech_.off(timerCancelEvents, cancelTimerHandler);\n\n        _this.tech_.off('canplay', canPlayHandler);\n\n        _this.tech_.off('play', playHandler);\n\n        _this.tech_.off('seeking', _this.watchForBadSeeking_);\n\n        _this.tech_.off('seeked', _this.clearSeekingAppendCheck_);\n\n        loaderTypes.forEach(function (type) {\n          mpc[type + \"SegmentLoader_\"].off('appendsdone', loaderChecks[type].updateend);\n          mpc[type + \"SegmentLoader_\"].off('playlistupdate', loaderChecks[type].reset);\n\n          _this.tech_.off(['seeked', 'seeking'], loaderChecks[type].reset);\n        });\n\n        if (_this.checkCurrentTimeTimeout_) {\n          window.clearTimeout(_this.checkCurrentTimeTimeout_);\n        }\n\n        _this.cancelTimer_();\n      };\n    }\n    /**\n     * Periodically check current time to see if playback stopped\n     *\n     * @private\n     */\n\n\n    var _proto = PlaybackWatcher.prototype;\n\n    _proto.monitorCurrentTime_ = function monitorCurrentTime_() {\n      this.checkCurrentTime_();\n\n      if (this.checkCurrentTimeTimeout_) {\n        window.clearTimeout(this.checkCurrentTimeTimeout_);\n      } // 42 = 24 fps // 250 is what Webkit uses // FF uses 15\n\n\n      this.checkCurrentTimeTimeout_ = window.setTimeout(this.monitorCurrentTime_.bind(this), 250);\n    }\n    /**\n     * Reset stalled download stats for a specific type of loader\n     *\n     * @param {string} type\n     *        The segment loader type to check.\n     *\n     * @listens SegmentLoader#playlistupdate\n     * @listens Tech#seeking\n     * @listens Tech#seeked\n     */\n    ;\n\n    _proto.resetSegmentDownloads_ = function resetSegmentDownloads_(type) {\n      var loader = this.masterPlaylistController_[type + \"SegmentLoader_\"];\n\n      if (this[type + \"StalledDownloads_\"] > 0) {\n        this.logger_(\"resetting possible stalled download count for \" + type + \" loader\");\n      }\n\n      this[type + \"StalledDownloads_\"] = 0;\n      this[type + \"Buffered_\"] = loader.buffered_();\n    }\n    /**\n     * Checks on every segment `appendsdone` to see\n     * if segment appends are making progress. If they are not\n     * and we are still downloading bytes. We blacklist the playlist.\n     *\n     * @param {string} type\n     *        The segment loader type to check.\n     *\n     * @listens SegmentLoader#appendsdone\n     */\n    ;\n\n    _proto.checkSegmentDownloads_ = function checkSegmentDownloads_(type) {\n      var mpc = this.masterPlaylistController_;\n      var loader = mpc[type + \"SegmentLoader_\"];\n      var buffered = loader.buffered_();\n      var isBufferedDifferent = isRangeDifferent(this[type + \"Buffered_\"], buffered);\n      this[type + \"Buffered_\"] = buffered; // if another watcher is going to fix the issue or\n      // the buffered value for this loader changed\n      // appends are working\n\n      if (isBufferedDifferent) {\n        this.resetSegmentDownloads_(type);\n        return;\n      }\n\n      this[type + \"StalledDownloads_\"]++;\n      this.logger_(\"found #\" + this[type + \"StalledDownloads_\"] + \" \" + type + \" appends that did not increase buffer (possible stalled download)\", {\n        playlistId: loader.playlist_ && loader.playlist_.id,\n        buffered: timeRangesToArray(buffered)\n      }); // after 10 possibly stalled appends with no reset, exclude\n\n      if (this[type + \"StalledDownloads_\"] < 10) {\n        return;\n      }\n\n      this.logger_(type + \" loader stalled download exclusion\");\n      this.resetSegmentDownloads_(type);\n      this.tech_.trigger({\n        type: 'usage',\n        name: \"vhs-\" + type + \"-download-exclusion\"\n      });\n\n      if (type === 'subtitle') {\n        return;\n      } // TODO: should we exclude audio tracks rather than main tracks\n      // when type is audio?\n\n\n      mpc.blacklistCurrentPlaylist({\n        message: \"Excessive \" + type + \" segment downloading detected.\"\n      }, Infinity);\n    }\n    /**\n     * The purpose of this function is to emulate the \"waiting\" event on\n     * browsers that do not emit it when they are waiting for more\n     * data to continue playback\n     *\n     * @private\n     */\n    ;\n\n    _proto.checkCurrentTime_ = function checkCurrentTime_() {\n      if (this.tech_.paused() || this.tech_.seeking()) {\n        return;\n      }\n\n      var currentTime = this.tech_.currentTime();\n      var buffered = this.tech_.buffered();\n\n      if (this.lastRecordedTime === currentTime && (!buffered.length || currentTime + SAFE_TIME_DELTA >= buffered.end(buffered.length - 1))) {\n        // If current time is at the end of the final buffered region, then any playback\n        // stall is most likely caused by buffering in a low bandwidth environment. The tech\n        // should fire a `waiting` event in this scenario, but due to browser and tech\n        // inconsistencies. Calling `techWaiting_` here allows us to simulate\n        // responding to a native `waiting` event when the tech fails to emit one.\n        return this.techWaiting_();\n      }\n\n      if (this.consecutiveUpdates >= 5 && currentTime === this.lastRecordedTime) {\n        this.consecutiveUpdates++;\n        this.waiting_();\n      } else if (currentTime === this.lastRecordedTime) {\n        this.consecutiveUpdates++;\n      } else {\n        this.consecutiveUpdates = 0;\n        this.lastRecordedTime = currentTime;\n      }\n    }\n    /**\n     * Cancels any pending timers and resets the 'timeupdate' mechanism\n     * designed to detect that we are stalled\n     *\n     * @private\n     */\n    ;\n\n    _proto.cancelTimer_ = function cancelTimer_() {\n      this.consecutiveUpdates = 0;\n\n      if (this.timer_) {\n        this.logger_('cancelTimer_');\n        clearTimeout(this.timer_);\n      }\n\n      this.timer_ = null;\n    }\n    /**\n     * Fixes situations where there's a bad seek\n     *\n     * @return {boolean} whether an action was taken to fix the seek\n     * @private\n     */\n    ;\n\n    _proto.fixesBadSeeks_ = function fixesBadSeeks_() {\n      var seeking = this.tech_.seeking();\n\n      if (!seeking) {\n        return false;\n      } // TODO: It's possible that these seekable checks should be moved out of this function\n      // and into a function that runs on seekablechange. It's also possible that we only need\n      // afterSeekableWindow as the buffered check at the bottom is good enough to handle before\n      // seekable range.\n\n\n      var seekable = this.seekable();\n      var currentTime = this.tech_.currentTime();\n      var isAfterSeekableRange = this.afterSeekableWindow_(seekable, currentTime, this.media(), this.allowSeeksWithinUnsafeLiveWindow);\n      var seekTo;\n\n      if (isAfterSeekableRange) {\n        var seekableEnd = seekable.end(seekable.length - 1); // sync to live point (if VOD, our seekable was updated and we're simply adjusting)\n\n        seekTo = seekableEnd;\n      }\n\n      if (this.beforeSeekableWindow_(seekable, currentTime)) {\n        var seekableStart = seekable.start(0); // sync to the beginning of the live window\n        // provide a buffer of .1 seconds to handle rounding/imprecise numbers\n\n        seekTo = seekableStart + ( // if the playlist is too short and the seekable range is an exact time (can\n        // happen in live with a 3 segment playlist), then don't use a time delta\n        seekableStart === seekable.end(0) ? 0 : SAFE_TIME_DELTA);\n      }\n\n      if (typeof seekTo !== 'undefined') {\n        this.logger_(\"Trying to seek outside of seekable at time \" + currentTime + \" with \" + (\"seekable range \" + printableRange(seekable) + \". Seeking to \") + (seekTo + \".\"));\n        this.tech_.setCurrentTime(seekTo);\n        return true;\n      }\n\n      var sourceUpdater = this.masterPlaylistController_.sourceUpdater_;\n      var buffered = this.tech_.buffered();\n      var audioBuffered = sourceUpdater.audioBuffer ? sourceUpdater.audioBuffered() : null;\n      var videoBuffered = sourceUpdater.videoBuffer ? sourceUpdater.videoBuffered() : null;\n      var media = this.media(); // verify that at least two segment durations or one part duration have been\n      // appended before checking for a gap.\n\n      var minAppendedDuration = media.partTargetDuration ? media.partTargetDuration : (media.targetDuration - TIME_FUDGE_FACTOR) * 2; // verify that at least two segment durations have been\n      // appended before checking for a gap.\n\n      var bufferedToCheck = [audioBuffered, videoBuffered];\n\n      for (var i = 0; i < bufferedToCheck.length; i++) {\n        // skip null buffered\n        if (!bufferedToCheck[i]) {\n          continue;\n        }\n\n        var timeAhead = timeAheadOf(bufferedToCheck[i], currentTime); // if we are less than two video/audio segment durations or one part\n        // duration behind we haven't appended enough to call this a bad seek.\n\n        if (timeAhead < minAppendedDuration) {\n          return false;\n        }\n      }\n\n      var nextRange = findNextRange(buffered, currentTime); // we have appended enough content, but we don't have anything buffered\n      // to seek over the gap\n\n      if (nextRange.length === 0) {\n        return false;\n      }\n\n      seekTo = nextRange.start(0) + SAFE_TIME_DELTA;\n      this.logger_(\"Buffered region starts (\" + nextRange.start(0) + \") \" + (\" just beyond seek point (\" + currentTime + \"). Seeking to \" + seekTo + \".\"));\n      this.tech_.setCurrentTime(seekTo);\n      return true;\n    }\n    /**\n     * Handler for situations when we determine the player is waiting.\n     *\n     * @private\n     */\n    ;\n\n    _proto.waiting_ = function waiting_() {\n      if (this.techWaiting_()) {\n        return;\n      } // All tech waiting checks failed. Use last resort correction\n\n\n      var currentTime = this.tech_.currentTime();\n      var buffered = this.tech_.buffered();\n      var currentRange = findRange(buffered, currentTime); // Sometimes the player can stall for unknown reasons within a contiguous buffered\n      // region with no indication that anything is amiss (seen in Firefox). Seeking to\n      // currentTime is usually enough to kickstart the player. This checks that the player\n      // is currently within a buffered region before attempting a corrective seek.\n      // Chrome does not appear to continue `timeupdate` events after a `waiting` event\n      // until there is ~ 3 seconds of forward buffer available. PlaybackWatcher should also\n      // make sure there is ~3 seconds of forward buffer before taking any corrective action\n      // to avoid triggering an `unknownwaiting` event when the network is slow.\n\n      if (currentRange.length && currentTime + 3 <= currentRange.end(0)) {\n        this.cancelTimer_();\n        this.tech_.setCurrentTime(currentTime);\n        this.logger_(\"Stopped at \" + currentTime + \" while inside a buffered region \" + (\"[\" + currentRange.start(0) + \" -> \" + currentRange.end(0) + \"]. Attempting to resume \") + 'playback by seeking to the current time.'); // unknown waiting corrections may be useful for monitoring QoS\n\n        this.tech_.trigger({\n          type: 'usage',\n          name: 'vhs-unknown-waiting'\n        });\n        this.tech_.trigger({\n          type: 'usage',\n          name: 'hls-unknown-waiting'\n        });\n        return;\n      }\n    }\n    /**\n     * Handler for situations when the tech fires a `waiting` event\n     *\n     * @return {boolean}\n     *         True if an action (or none) was needed to correct the waiting. False if no\n     *         checks passed\n     * @private\n     */\n    ;\n\n    _proto.techWaiting_ = function techWaiting_() {\n      var seekable = this.seekable();\n      var currentTime = this.tech_.currentTime();\n\n      if (this.tech_.seeking() || this.timer_ !== null) {\n        // Tech is seeking or already waiting on another action, no action needed\n        return true;\n      }\n\n      if (this.beforeSeekableWindow_(seekable, currentTime)) {\n        var livePoint = seekable.end(seekable.length - 1);\n        this.logger_(\"Fell out of live window at time \" + currentTime + \". Seeking to \" + (\"live point (seekable end) \" + livePoint));\n        this.cancelTimer_();\n        this.tech_.setCurrentTime(livePoint); // live window resyncs may be useful for monitoring QoS\n\n        this.tech_.trigger({\n          type: 'usage',\n          name: 'vhs-live-resync'\n        });\n        this.tech_.trigger({\n          type: 'usage',\n          name: 'hls-live-resync'\n        });\n        return true;\n      }\n\n      var sourceUpdater = this.tech_.vhs.masterPlaylistController_.sourceUpdater_;\n      var buffered = this.tech_.buffered();\n      var videoUnderflow = this.videoUnderflow_({\n        audioBuffered: sourceUpdater.audioBuffered(),\n        videoBuffered: sourceUpdater.videoBuffered(),\n        currentTime: currentTime\n      });\n\n      if (videoUnderflow) {\n        // Even though the video underflowed and was stuck in a gap, the audio overplayed\n        // the gap, leading currentTime into a buffered range. Seeking to currentTime\n        // allows the video to catch up to the audio position without losing any audio\n        // (only suffering ~3 seconds of frozen video and a pause in audio playback).\n        this.cancelTimer_();\n        this.tech_.setCurrentTime(currentTime); // video underflow may be useful for monitoring QoS\n\n        this.tech_.trigger({\n          type: 'usage',\n          name: 'vhs-video-underflow'\n        });\n        this.tech_.trigger({\n          type: 'usage',\n          name: 'hls-video-underflow'\n        });\n        return true;\n      }\n\n      var nextRange = findNextRange(buffered, currentTime); // check for gap\n\n      if (nextRange.length > 0) {\n        var difference = nextRange.start(0) - currentTime;\n        this.logger_(\"Stopped at \" + currentTime + \", setting timer for \" + difference + \", seeking \" + (\"to \" + nextRange.start(0)));\n        this.cancelTimer_();\n        this.timer_ = setTimeout(this.skipTheGap_.bind(this), difference * 1000, currentTime);\n        return true;\n      } // All checks failed. Returning false to indicate failure to correct waiting\n\n\n      return false;\n    };\n\n    _proto.afterSeekableWindow_ = function afterSeekableWindow_(seekable, currentTime, playlist, allowSeeksWithinUnsafeLiveWindow) {\n      if (allowSeeksWithinUnsafeLiveWindow === void 0) {\n        allowSeeksWithinUnsafeLiveWindow = false;\n      }\n\n      if (!seekable.length) {\n        // we can't make a solid case if there's no seekable, default to false\n        return false;\n      }\n\n      var allowedEnd = seekable.end(seekable.length - 1) + SAFE_TIME_DELTA;\n      var isLive = !playlist.endList;\n\n      if (isLive && allowSeeksWithinUnsafeLiveWindow) {\n        allowedEnd = seekable.end(seekable.length - 1) + playlist.targetDuration * 3;\n      }\n\n      if (currentTime > allowedEnd) {\n        return true;\n      }\n\n      return false;\n    };\n\n    _proto.beforeSeekableWindow_ = function beforeSeekableWindow_(seekable, currentTime) {\n      if (seekable.length && // can't fall before 0 and 0 seekable start identifies VOD stream\n      seekable.start(0) > 0 && currentTime < seekable.start(0) - this.liveRangeSafeTimeDelta) {\n        return true;\n      }\n\n      return false;\n    };\n\n    _proto.videoUnderflow_ = function videoUnderflow_(_ref) {\n      var videoBuffered = _ref.videoBuffered,\n          audioBuffered = _ref.audioBuffered,\n          currentTime = _ref.currentTime; // audio only content will not have video underflow :)\n\n      if (!videoBuffered) {\n        return;\n      }\n\n      var gap; // find a gap in demuxed content.\n\n      if (videoBuffered.length && audioBuffered.length) {\n        // in Chrome audio will continue to play for ~3s when we run out of video\n        // so we have to check that the video buffer did have some buffer in the\n        // past.\n        var lastVideoRange = findRange(videoBuffered, currentTime - 3);\n        var videoRange = findRange(videoBuffered, currentTime);\n        var audioRange = findRange(audioBuffered, currentTime);\n\n        if (audioRange.length && !videoRange.length && lastVideoRange.length) {\n          gap = {\n            start: lastVideoRange.end(0),\n            end: audioRange.end(0)\n          };\n        } // find a gap in muxed content.\n\n      } else {\n        var nextRange = findNextRange(videoBuffered, currentTime); // Even if there is no available next range, there is still a possibility we are\n        // stuck in a gap due to video underflow.\n\n        if (!nextRange.length) {\n          gap = this.gapFromVideoUnderflow_(videoBuffered, currentTime);\n        }\n      }\n\n      if (gap) {\n        this.logger_(\"Encountered a gap in video from \" + gap.start + \" to \" + gap.end + \". \" + (\"Seeking to current time \" + currentTime));\n        return true;\n      }\n\n      return false;\n    }\n    /**\n     * Timer callback. If playback still has not proceeded, then we seek\n     * to the start of the next buffered region.\n     *\n     * @private\n     */\n    ;\n\n    _proto.skipTheGap_ = function skipTheGap_(scheduledCurrentTime) {\n      var buffered = this.tech_.buffered();\n      var currentTime = this.tech_.currentTime();\n      var nextRange = findNextRange(buffered, currentTime);\n      this.cancelTimer_();\n\n      if (nextRange.length === 0 || currentTime !== scheduledCurrentTime) {\n        return;\n      }\n\n      this.logger_('skipTheGap_:', 'currentTime:', currentTime, 'scheduled currentTime:', scheduledCurrentTime, 'nextRange start:', nextRange.start(0)); // only seek if we still have not played\n\n      this.tech_.setCurrentTime(nextRange.start(0) + TIME_FUDGE_FACTOR);\n      this.tech_.trigger({\n        type: 'usage',\n        name: 'vhs-gap-skip'\n      });\n      this.tech_.trigger({\n        type: 'usage',\n        name: 'hls-gap-skip'\n      });\n    };\n\n    _proto.gapFromVideoUnderflow_ = function gapFromVideoUnderflow_(buffered, currentTime) {\n      // At least in Chrome, if there is a gap in the video buffer, the audio will continue\n      // playing for ~3 seconds after the video gap starts. This is done to account for\n      // video buffer underflow/underrun (note that this is not done when there is audio\n      // buffer underflow/underrun -- in that case the video will stop as soon as it\n      // encounters the gap, as audio stalls are more noticeable/jarring to a user than\n      // video stalls). The player's time will reflect the playthrough of audio, so the\n      // time will appear as if we are in a buffered region, even if we are stuck in a\n      // \"gap.\"\n      //\n      // Example:\n      // video buffer:   0 => 10.1, 10.2 => 20\n      // audio buffer:   0 => 20\n      // overall buffer: 0 => 10.1, 10.2 => 20\n      // current time: 13\n      //\n      // Chrome's video froze at 10 seconds, where the video buffer encountered the gap,\n      // however, the audio continued playing until it reached ~3 seconds past the gap\n      // (13 seconds), at which point it stops as well. Since current time is past the\n      // gap, findNextRange will return no ranges.\n      //\n      // To check for this issue, we see if there is a gap that starts somewhere within\n      // a 3 second range (3 seconds +/- 1 second) back from our current time.\n      var gaps = findGaps(buffered);\n\n      for (var i = 0; i < gaps.length; i++) {\n        var start = gaps.start(i);\n        var end = gaps.end(i); // gap is starts no more than 4 seconds back\n\n        if (currentTime - start < 4 && currentTime - start > 2) {\n          return {\n            start: start,\n            end: end\n          };\n        }\n      }\n\n      return null;\n    };\n\n    return PlaybackWatcher;\n  }();\n\n  var defaultOptions = {\n    errorInterval: 30,\n    getSource: function getSource(next) {\n      var tech = this.tech({\n        IWillNotUseThisInPlugins: true\n      });\n      var sourceObj = tech.currentSource_ || this.currentSource();\n      return next(sourceObj);\n    }\n  };\n  /**\n   * Main entry point for the plugin\n   *\n   * @param {Player} player a reference to a videojs Player instance\n   * @param {Object} [options] an object with plugin options\n   * @private\n   */\n\n  var initPlugin = function initPlugin(player, options) {\n    var lastCalled = 0;\n    var seekTo = 0;\n    var localOptions = videojs.mergeOptions(defaultOptions, options);\n    player.ready(function () {\n      player.trigger({\n        type: 'usage',\n        name: 'vhs-error-reload-initialized'\n      });\n      player.trigger({\n        type: 'usage',\n        name: 'hls-error-reload-initialized'\n      });\n    });\n    /**\n     * Player modifications to perform that must wait until `loadedmetadata`\n     * has been triggered\n     *\n     * @private\n     */\n\n    var loadedMetadataHandler = function loadedMetadataHandler() {\n      if (seekTo) {\n        player.currentTime(seekTo);\n      }\n    };\n    /**\n     * Set the source on the player element, play, and seek if necessary\n     *\n     * @param {Object} sourceObj An object specifying the source url and mime-type to play\n     * @private\n     */\n\n\n    var setSource = function setSource(sourceObj) {\n      if (sourceObj === null || sourceObj === undefined) {\n        return;\n      }\n\n      seekTo = player.duration() !== Infinity && player.currentTime() || 0;\n      player.one('loadedmetadata', loadedMetadataHandler);\n      player.src(sourceObj);\n      player.trigger({\n        type: 'usage',\n        name: 'vhs-error-reload'\n      });\n      player.trigger({\n        type: 'usage',\n        name: 'hls-error-reload'\n      });\n      player.play();\n    };\n    /**\n     * Attempt to get a source from either the built-in getSource function\n     * or a custom function provided via the options\n     *\n     * @private\n     */\n\n\n    var errorHandler = function errorHandler() {\n      // Do not attempt to reload the source if a source-reload occurred before\n      // 'errorInterval' time has elapsed since the last source-reload\n      if (Date.now() - lastCalled < localOptions.errorInterval * 1000) {\n        player.trigger({\n          type: 'usage',\n          name: 'vhs-error-reload-canceled'\n        });\n        player.trigger({\n          type: 'usage',\n          name: 'hls-error-reload-canceled'\n        });\n        return;\n      }\n\n      if (!localOptions.getSource || typeof localOptions.getSource !== 'function') {\n        videojs.log.error('ERROR: reloadSourceOnError - The option getSource must be a function!');\n        return;\n      }\n\n      lastCalled = Date.now();\n      return localOptions.getSource.call(player, setSource);\n    };\n    /**\n     * Unbind any event handlers that were bound by the plugin\n     *\n     * @private\n     */\n\n\n    var cleanupEvents = function cleanupEvents() {\n      player.off('loadedmetadata', loadedMetadataHandler);\n      player.off('error', errorHandler);\n      player.off('dispose', cleanupEvents);\n    };\n    /**\n     * Cleanup before re-initializing the plugin\n     *\n     * @param {Object} [newOptions] an object with plugin options\n     * @private\n     */\n\n\n    var reinitPlugin = function reinitPlugin(newOptions) {\n      cleanupEvents();\n      initPlugin(player, newOptions);\n    };\n\n    player.on('error', errorHandler);\n    player.on('dispose', cleanupEvents); // Overwrite the plugin function so that we can correctly cleanup before\n    // initializing the plugin\n\n    player.reloadSourceOnError = reinitPlugin;\n  };\n  /**\n   * Reload the source when an error is detected as long as there\n   * wasn't an error previously within the last 30 seconds\n   *\n   * @param {Object} [options] an object with plugin options\n   */\n\n\n  var reloadSourceOnError = function reloadSourceOnError(options) {\n    initPlugin(this, options);\n  };\n\n  var version$4 = \"2.14.3\";\n  var version$3 = \"6.0.1\";\n  var version$2 = \"0.21.1\";\n  var version$1 = \"4.7.1\";\n  var version = \"3.1.3\";\n  var Vhs = {\n    PlaylistLoader: PlaylistLoader,\n    Playlist: Playlist,\n    utils: utils,\n    STANDARD_PLAYLIST_SELECTOR: lastBandwidthSelector,\n    INITIAL_PLAYLIST_SELECTOR: lowestBitrateCompatibleVariantSelector,\n    lastBandwidthSelector: lastBandwidthSelector,\n    movingAverageBandwidthSelector: movingAverageBandwidthSelector,\n    comparePlaylistBandwidth: comparePlaylistBandwidth,\n    comparePlaylistResolution: comparePlaylistResolution,\n    xhr: xhrFactory()\n  }; // Define getter/setters for config properties\n\n  Object.keys(Config).forEach(function (prop) {\n    Object.defineProperty(Vhs, prop, {\n      get: function get() {\n        videojs.log.warn(\"using Vhs.\" + prop + \" is UNSAFE be sure you know what you are doing\");\n        return Config[prop];\n      },\n      set: function set(value) {\n        videojs.log.warn(\"using Vhs.\" + prop + \" is UNSAFE be sure you know what you are doing\");\n\n        if (typeof value !== 'number' || value < 0) {\n          videojs.log.warn(\"value of Vhs.\" + prop + \" must be greater than or equal to 0\");\n          return;\n        }\n\n        Config[prop] = value;\n      }\n    });\n  });\n  var LOCAL_STORAGE_KEY = 'videojs-vhs';\n  /**\n   * Updates the selectedIndex of the QualityLevelList when a mediachange happens in vhs.\n   *\n   * @param {QualityLevelList} qualityLevels The QualityLevelList to update.\n   * @param {PlaylistLoader} playlistLoader PlaylistLoader containing the new media info.\n   * @function handleVhsMediaChange\n   */\n\n  var handleVhsMediaChange = function handleVhsMediaChange(qualityLevels, playlistLoader) {\n    var newPlaylist = playlistLoader.media();\n    var selectedIndex = -1;\n\n    for (var i = 0; i < qualityLevels.length; i++) {\n      if (qualityLevels[i].id === newPlaylist.id) {\n        selectedIndex = i;\n        break;\n      }\n    }\n\n    qualityLevels.selectedIndex_ = selectedIndex;\n    qualityLevels.trigger({\n      selectedIndex: selectedIndex,\n      type: 'change'\n    });\n  };\n  /**\n   * Adds quality levels to list once playlist metadata is available\n   *\n   * @param {QualityLevelList} qualityLevels The QualityLevelList to attach events to.\n   * @param {Object} vhs Vhs object to listen to for media events.\n   * @function handleVhsLoadedMetadata\n   */\n\n\n  var handleVhsLoadedMetadata = function handleVhsLoadedMetadata(qualityLevels, vhs) {\n    vhs.representations().forEach(function (rep) {\n      qualityLevels.addQualityLevel(rep);\n    });\n    handleVhsMediaChange(qualityLevels, vhs.playlists);\n  }; // HLS is a source handler, not a tech. Make sure attempts to use it\n  // as one do not cause exceptions.\n\n\n  Vhs.canPlaySource = function () {\n    return videojs.log.warn('HLS is no longer a tech. Please remove it from ' + 'your player\\'s techOrder.');\n  };\n\n  var emeKeySystems = function emeKeySystems(keySystemOptions, mainPlaylist, audioPlaylist) {\n    if (!keySystemOptions) {\n      return keySystemOptions;\n    }\n\n    var codecs = {};\n\n    if (mainPlaylist && mainPlaylist.attributes && mainPlaylist.attributes.CODECS) {\n      codecs = unwrapCodecList(parseCodecs(mainPlaylist.attributes.CODECS));\n    }\n\n    if (audioPlaylist && audioPlaylist.attributes && audioPlaylist.attributes.CODECS) {\n      codecs.audio = audioPlaylist.attributes.CODECS;\n    }\n\n    var videoContentType = getMimeForCodec(codecs.video);\n    var audioContentType = getMimeForCodec(codecs.audio); // upsert the content types based on the selected playlist\n\n    var keySystemContentTypes = {};\n\n    for (var keySystem in keySystemOptions) {\n      keySystemContentTypes[keySystem] = {};\n\n      if (audioContentType) {\n        keySystemContentTypes[keySystem].audioContentType = audioContentType;\n      }\n\n      if (videoContentType) {\n        keySystemContentTypes[keySystem].videoContentType = videoContentType;\n      } // Default to using the video playlist's PSSH even though they may be different, as\n      // videojs-contrib-eme will only accept one in the options.\n      //\n      // This shouldn't be an issue for most cases as early intialization will handle all\n      // unique PSSH values, and if they aren't, then encrypted events should have the\n      // specific information needed for the unique license.\n\n\n      if (mainPlaylist.contentProtection && mainPlaylist.contentProtection[keySystem] && mainPlaylist.contentProtection[keySystem].pssh) {\n        keySystemContentTypes[keySystem].pssh = mainPlaylist.contentProtection[keySystem].pssh;\n      } // videojs-contrib-eme accepts the option of specifying: 'com.some.cdm': 'url'\n      // so we need to prevent overwriting the URL entirely\n\n\n      if (typeof keySystemOptions[keySystem] === 'string') {\n        keySystemContentTypes[keySystem].url = keySystemOptions[keySystem];\n      }\n    }\n\n    return videojs.mergeOptions(keySystemOptions, keySystemContentTypes);\n  };\n  /**\n   * @typedef {Object} KeySystems\n   *\n   * keySystems configuration for https://github.com/videojs/videojs-contrib-eme\n   * Note: not all options are listed here.\n   *\n   * @property {Uint8Array} [pssh]\n   *           Protection System Specific Header\n   */\n\n  /**\n   * Goes through all the playlists and collects an array of KeySystems options objects\n   * containing each playlist's keySystems and their pssh values, if available.\n   *\n   * @param {Object[]} playlists\n   *        The playlists to look through\n   * @param {string[]} keySystems\n   *        The keySystems to collect pssh values for\n   *\n   * @return {KeySystems[]}\n   *         An array of KeySystems objects containing available key systems and their\n   *         pssh values\n   */\n\n\n  var getAllPsshKeySystemsOptions = function getAllPsshKeySystemsOptions(playlists, keySystems) {\n    return playlists.reduce(function (keySystemsArr, playlist) {\n      if (!playlist.contentProtection) {\n        return keySystemsArr;\n      }\n\n      var keySystemsOptions = keySystems.reduce(function (keySystemsObj, keySystem) {\n        var keySystemOptions = playlist.contentProtection[keySystem];\n\n        if (keySystemOptions && keySystemOptions.pssh) {\n          keySystemsObj[keySystem] = {\n            pssh: keySystemOptions.pssh\n          };\n        }\n\n        return keySystemsObj;\n      }, {});\n\n      if (Object.keys(keySystemsOptions).length) {\n        keySystemsArr.push(keySystemsOptions);\n      }\n\n      return keySystemsArr;\n    }, []);\n  };\n  /**\n   * Returns a promise that waits for the\n   * [eme plugin](https://github.com/videojs/videojs-contrib-eme) to create a key session.\n   *\n   * Works around https://bugs.chromium.org/p/chromium/issues/detail?id=895449 in non-IE11\n   * browsers.\n   *\n   * As per the above ticket, this is particularly important for Chrome, where, if\n   * unencrypted content is appended before encrypted content and the key session has not\n   * been created, a MEDIA_ERR_DECODE will be thrown once the encrypted content is reached\n   * during playback.\n   *\n   * @param {Object} player\n   *        The player instance\n   * @param {Object[]} sourceKeySystems\n   *        The key systems options from the player source\n   * @param {Object} [audioMedia]\n   *        The active audio media playlist (optional)\n   * @param {Object[]} mainPlaylists\n   *        The playlists found on the master playlist object\n   *\n   * @return {Object}\n   *         Promise that resolves when the key session has been created\n   */\n\n\n  var waitForKeySessionCreation = function waitForKeySessionCreation(_ref) {\n    var player = _ref.player,\n        sourceKeySystems = _ref.sourceKeySystems,\n        audioMedia = _ref.audioMedia,\n        mainPlaylists = _ref.mainPlaylists;\n\n    if (!player.eme.initializeMediaKeys) {\n      return Promise.resolve();\n    } // TODO should all audio PSSH values be initialized for DRM?\n    //\n    // All unique video rendition pssh values are initialized for DRM, but here only\n    // the initial audio playlist license is initialized. In theory, an encrypted\n    // event should be fired if the user switches to an alternative audio playlist\n    // where a license is required, but this case hasn't yet been tested. In addition, there\n    // may be many alternate audio playlists unlikely to be used (e.g., multiple different\n    // languages).\n\n\n    var playlists = audioMedia ? mainPlaylists.concat([audioMedia]) : mainPlaylists;\n    var keySystemsOptionsArr = getAllPsshKeySystemsOptions(playlists, Object.keys(sourceKeySystems));\n    var initializationFinishedPromises = [];\n    var keySessionCreatedPromises = []; // Since PSSH values are interpreted as initData, EME will dedupe any duplicates. The\n    // only place where it should not be deduped is for ms-prefixed APIs, but the early\n    // return for IE11 above, and the existence of modern EME APIs in addition to\n    // ms-prefixed APIs on Edge should prevent this from being a concern.\n    // initializeMediaKeys also won't use the webkit-prefixed APIs.\n\n    keySystemsOptionsArr.forEach(function (keySystemsOptions) {\n      keySessionCreatedPromises.push(new Promise(function (resolve, reject) {\n        player.tech_.one('keysessioncreated', resolve);\n      }));\n      initializationFinishedPromises.push(new Promise(function (resolve, reject) {\n        player.eme.initializeMediaKeys({\n          keySystems: keySystemsOptions\n        }, function (err) {\n          if (err) {\n            reject(err);\n            return;\n          }\n\n          resolve();\n        });\n      }));\n    }); // The reasons Promise.race is chosen over Promise.any:\n    //\n    // * Promise.any is only available in Safari 14+.\n    // * None of these promises are expected to reject. If they do reject, it might be\n    //   better here for the race to surface the rejection, rather than mask it by using\n    //   Promise.any.\n\n    return Promise.race([// If a session was previously created, these will all finish resolving without\n    // creating a new session, otherwise it will take until the end of all license\n    // requests, which is why the key session check is used (to make setup much faster).\n    Promise.all(initializationFinishedPromises), // Once a single session is created, the browser knows DRM will be used.\n    Promise.race(keySessionCreatedPromises)]);\n  };\n  /**\n   * If the [eme](https://github.com/videojs/videojs-contrib-eme) plugin is available, and\n   * there are keySystems on the source, sets up source options to prepare the source for\n   * eme.\n   *\n   * @param {Object} player\n   *        The player instance\n   * @param {Object[]} sourceKeySystems\n   *        The key systems options from the player source\n   * @param {Object} media\n   *        The active media playlist\n   * @param {Object} [audioMedia]\n   *        The active audio media playlist (optional)\n   *\n   * @return {boolean}\n   *         Whether or not options were configured and EME is available\n   */\n\n\n  var setupEmeOptions = function setupEmeOptions(_ref2) {\n    var player = _ref2.player,\n        sourceKeySystems = _ref2.sourceKeySystems,\n        media = _ref2.media,\n        audioMedia = _ref2.audioMedia;\n    var sourceOptions = emeKeySystems(sourceKeySystems, media, audioMedia);\n\n    if (!sourceOptions) {\n      return false;\n    }\n\n    player.currentSource().keySystems = sourceOptions; // eme handles the rest of the setup, so if it is missing\n    // do nothing.\n\n    if (sourceOptions && !player.eme) {\n      videojs.log.warn('DRM encrypted source cannot be decrypted without a DRM plugin');\n      return false;\n    }\n\n    return true;\n  };\n\n  var getVhsLocalStorage = function getVhsLocalStorage() {\n    if (!window.localStorage) {\n      return null;\n    }\n\n    var storedObject = window.localStorage.getItem(LOCAL_STORAGE_KEY);\n\n    if (!storedObject) {\n      return null;\n    }\n\n    try {\n      return JSON.parse(storedObject);\n    } catch (e) {\n      // someone may have tampered with the value\n      return null;\n    }\n  };\n\n  var updateVhsLocalStorage = function updateVhsLocalStorage(options) {\n    if (!window.localStorage) {\n      return false;\n    }\n\n    var objectToStore = getVhsLocalStorage();\n    objectToStore = objectToStore ? videojs.mergeOptions(objectToStore, options) : options;\n\n    try {\n      window.localStorage.setItem(LOCAL_STORAGE_KEY, JSON.stringify(objectToStore));\n    } catch (e) {\n      // Throws if storage is full (e.g., always on iOS 5+ Safari private mode, where\n      // storage is set to 0).\n      // https://developer.mozilla.org/en-US/docs/Web/API/Storage/setItem#Exceptions\n      // No need to perform any operation.\n      return false;\n    }\n\n    return objectToStore;\n  };\n  /**\n   * Parses VHS-supported media types from data URIs. See\n   * https://developer.mozilla.org/en-US/docs/Web/HTTP/Basics_of_HTTP/Data_URIs\n   * for information on data URIs.\n   *\n   * @param {string} dataUri\n   *        The data URI\n   *\n   * @return {string|Object}\n   *         The parsed object/string, or the original string if no supported media type\n   *         was found\n   */\n\n\n  var expandDataUri = function expandDataUri(dataUri) {\n    if (dataUri.toLowerCase().indexOf('data:application/vnd.videojs.vhs+json,') === 0) {\n      return JSON.parse(dataUri.substring(dataUri.indexOf(',') + 1));\n    } // no known case for this data URI, return the string as-is\n\n\n    return dataUri;\n  };\n  /**\n   * Whether the browser has built-in HLS support.\n   */\n\n\n  Vhs.supportsNativeHls = function () {\n    if (!document || !document.createElement) {\n      return false;\n    }\n\n    var video = document.createElement('video'); // native HLS is definitely not supported if HTML5 video isn't\n\n    if (!videojs.getTech('Html5').isSupported()) {\n      return false;\n    } // HLS manifests can go by many mime-types\n\n\n    var canPlay = [// Apple santioned\n    'application/vnd.apple.mpegurl', // Apple sanctioned for backwards compatibility\n    'audio/mpegurl', // Very common\n    'audio/x-mpegurl', // Very common\n    'application/x-mpegurl', // Included for completeness\n    'video/x-mpegurl', 'video/mpegurl', 'application/mpegurl'];\n    return canPlay.some(function (canItPlay) {\n      return /maybe|probably/i.test(video.canPlayType(canItPlay));\n    });\n  }();\n\n  Vhs.supportsNativeDash = function () {\n    if (!document || !document.createElement || !videojs.getTech('Html5').isSupported()) {\n      return false;\n    }\n\n    return /maybe|probably/i.test(document.createElement('video').canPlayType('application/dash+xml'));\n  }();\n\n  Vhs.supportsTypeNatively = function (type) {\n    if (type === 'hls') {\n      return Vhs.supportsNativeHls;\n    }\n\n    if (type === 'dash') {\n      return Vhs.supportsNativeDash;\n    }\n\n    return false;\n  };\n  /**\n   * HLS is a source handler, not a tech. Make sure attempts to use it\n   * as one do not cause exceptions.\n   */\n\n\n  Vhs.isSupported = function () {\n    return videojs.log.warn('HLS is no longer a tech. Please remove it from ' + 'your player\\'s techOrder.');\n  };\n\n  var Component = videojs.getComponent('Component');\n  /**\n   * The Vhs Handler object, where we orchestrate all of the parts\n   * of HLS to interact with video.js\n   *\n   * @class VhsHandler\n   * @extends videojs.Component\n   * @param {Object} source the soruce object\n   * @param {Tech} tech the parent tech object\n   * @param {Object} options optional and required options\n   */\n\n  var VhsHandler = /*#__PURE__*/function (_Component) {\n    inheritsLoose(VhsHandler, _Component);\n\n    function VhsHandler(source, tech, options) {\n      var _this;\n\n      _this = _Component.call(this, tech, videojs.mergeOptions(options.hls, options.vhs)) || this;\n\n      if (options.hls && Object.keys(options.hls).length) {\n        videojs.log.warn('Using hls options is deprecated. Please rename `hls` to `vhs` in your options object.');\n      } // if a tech level `initialBandwidth` option was passed\n      // use that over the VHS level `bandwidth` option\n\n\n      if (typeof options.initialBandwidth === 'number') {\n        _this.options_.bandwidth = options.initialBandwidth;\n      }\n\n      _this.logger_ = logger('VhsHandler'); // tech.player() is deprecated but setup a reference to HLS for\n      // backwards-compatibility\n\n      if (tech.options_ && tech.options_.playerId) {\n        var _player = videojs(tech.options_.playerId);\n\n        if (!_player.hasOwnProperty('hls')) {\n          Object.defineProperty(_player, 'hls', {\n            get: function get() {\n              videojs.log.warn('player.hls is deprecated. Use player.tech().vhs instead.');\n              tech.trigger({\n                type: 'usage',\n                name: 'hls-player-access'\n              });\n              return assertThisInitialized(_this);\n            },\n            configurable: true\n          });\n        }\n\n        if (!_player.hasOwnProperty('vhs')) {\n          Object.defineProperty(_player, 'vhs', {\n            get: function get() {\n              videojs.log.warn('player.vhs is deprecated. Use player.tech().vhs instead.');\n              tech.trigger({\n                type: 'usage',\n                name: 'vhs-player-access'\n              });\n              return assertThisInitialized(_this);\n            },\n            configurable: true\n          });\n        }\n\n        if (!_player.hasOwnProperty('dash')) {\n          Object.defineProperty(_player, 'dash', {\n            get: function get() {\n              videojs.log.warn('player.dash is deprecated. Use player.tech().vhs instead.');\n              return assertThisInitialized(_this);\n            },\n            configurable: true\n          });\n        }\n\n        _this.player_ = _player;\n      }\n\n      _this.tech_ = tech;\n      _this.source_ = source;\n      _this.stats = {};\n      _this.ignoreNextSeekingEvent_ = false;\n\n      _this.setOptions_();\n\n      if (_this.options_.overrideNative && tech.overrideNativeAudioTracks && tech.overrideNativeVideoTracks) {\n        tech.overrideNativeAudioTracks(true);\n        tech.overrideNativeVideoTracks(true);\n      } else if (_this.options_.overrideNative && (tech.featuresNativeVideoTracks || tech.featuresNativeAudioTracks)) {\n        // overriding native HLS only works if audio tracks have been emulated\n        // error early if we're misconfigured\n        throw new Error('Overriding native HLS requires emulated tracks. ' + 'See https://git.io/vMpjB');\n      } // listen for fullscreenchange events for this player so that we\n      // can adjust our quality selection quickly\n\n\n      _this.on(document, ['fullscreenchange', 'webkitfullscreenchange', 'mozfullscreenchange', 'MSFullscreenChange'], function (event) {\n        var fullscreenElement = document.fullscreenElement || document.webkitFullscreenElement || document.mozFullScreenElement || document.msFullscreenElement;\n\n        if (fullscreenElement && fullscreenElement.contains(_this.tech_.el())) {\n          _this.masterPlaylistController_.fastQualityChange_();\n        } else {\n          // When leaving fullscreen, since the in page pixel dimensions should be smaller\n          // than full screen, see if there should be a rendition switch down to preserve\n          // bandwidth.\n          _this.masterPlaylistController_.checkABR_();\n        }\n      });\n\n      _this.on(_this.tech_, 'seeking', function () {\n        if (this.ignoreNextSeekingEvent_) {\n          this.ignoreNextSeekingEvent_ = false;\n          return;\n        }\n\n        this.setCurrentTime(this.tech_.currentTime());\n      });\n\n      _this.on(_this.tech_, 'error', function () {\n        // verify that the error was real and we are loaded\n        // enough to have mpc loaded.\n        if (this.tech_.error() && this.masterPlaylistController_) {\n          this.masterPlaylistController_.pauseLoading();\n        }\n      });\n\n      _this.on(_this.tech_, 'play', _this.play);\n\n      return _this;\n    }\n\n    var _proto = VhsHandler.prototype;\n\n    _proto.setOptions_ = function setOptions_() {\n      var _this2 = this; // defaults\n\n\n      this.options_.withCredentials = this.options_.withCredentials || false;\n      this.options_.handleManifestRedirects = this.options_.handleManifestRedirects === false ? false : true;\n      this.options_.limitRenditionByPlayerDimensions = this.options_.limitRenditionByPlayerDimensions === false ? false : true;\n      this.options_.useDevicePixelRatio = this.options_.useDevicePixelRatio || false;\n      this.options_.smoothQualityChange = this.options_.smoothQualityChange || false;\n      this.options_.useBandwidthFromLocalStorage = typeof this.source_.useBandwidthFromLocalStorage !== 'undefined' ? this.source_.useBandwidthFromLocalStorage : this.options_.useBandwidthFromLocalStorage || false;\n      this.options_.useNetworkInformationApi = this.options_.useNetworkInformationApi || false;\n      this.options_.useDtsForTimestampOffset = this.options_.useDtsForTimestampOffset || false;\n      this.options_.customTagParsers = this.options_.customTagParsers || [];\n      this.options_.customTagMappers = this.options_.customTagMappers || [];\n      this.options_.cacheEncryptionKeys = this.options_.cacheEncryptionKeys || false;\n\n      if (typeof this.options_.blacklistDuration !== 'number') {\n        this.options_.blacklistDuration = 5 * 60;\n      }\n\n      if (typeof this.options_.bandwidth !== 'number') {\n        if (this.options_.useBandwidthFromLocalStorage) {\n          var storedObject = getVhsLocalStorage();\n\n          if (storedObject && storedObject.bandwidth) {\n            this.options_.bandwidth = storedObject.bandwidth;\n            this.tech_.trigger({\n              type: 'usage',\n              name: 'vhs-bandwidth-from-local-storage'\n            });\n            this.tech_.trigger({\n              type: 'usage',\n              name: 'hls-bandwidth-from-local-storage'\n            });\n          }\n\n          if (storedObject && storedObject.throughput) {\n            this.options_.throughput = storedObject.throughput;\n            this.tech_.trigger({\n              type: 'usage',\n              name: 'vhs-throughput-from-local-storage'\n            });\n            this.tech_.trigger({\n              type: 'usage',\n              name: 'hls-throughput-from-local-storage'\n            });\n          }\n        }\n      } // if bandwidth was not set by options or pulled from local storage, start playlist\n      // selection at a reasonable bandwidth\n\n\n      if (typeof this.options_.bandwidth !== 'number') {\n        this.options_.bandwidth = Config.INITIAL_BANDWIDTH;\n      } // If the bandwidth number is unchanged from the initial setting\n      // then this takes precedence over the enableLowInitialPlaylist option\n\n\n      this.options_.enableLowInitialPlaylist = this.options_.enableLowInitialPlaylist && this.options_.bandwidth === Config.INITIAL_BANDWIDTH; // grab options passed to player.src\n\n      ['withCredentials', 'useDevicePixelRatio', 'limitRenditionByPlayerDimensions', 'bandwidth', 'smoothQualityChange', 'customTagParsers', 'customTagMappers', 'handleManifestRedirects', 'cacheEncryptionKeys', 'playlistSelector', 'initialPlaylistSelector', 'experimentalBufferBasedABR', 'liveRangeSafeTimeDelta', 'experimentalLLHLS', 'useNetworkInformationApi', 'useDtsForTimestampOffset', 'experimentalExactManifestTimings', 'experimentalLeastPixelDiffSelector'].forEach(function (option) {\n        if (typeof _this2.source_[option] !== 'undefined') {\n          _this2.options_[option] = _this2.source_[option];\n        }\n      });\n      this.limitRenditionByPlayerDimensions = this.options_.limitRenditionByPlayerDimensions;\n      this.useDevicePixelRatio = this.options_.useDevicePixelRatio;\n    }\n    /**\n     * called when player.src gets called, handle a new source\n     *\n     * @param {Object} src the source object to handle\n     */\n    ;\n\n    _proto.src = function src(_src, type) {\n      var _this3 = this; // do nothing if the src is falsey\n\n\n      if (!_src) {\n        return;\n      }\n\n      this.setOptions_(); // add master playlist controller options\n\n      this.options_.src = expandDataUri(this.source_.src);\n      this.options_.tech = this.tech_;\n      this.options_.externVhs = Vhs;\n      this.options_.sourceType = simpleTypeFromSourceType(type); // Whenever we seek internally, we should update the tech\n\n      this.options_.seekTo = function (time) {\n        _this3.tech_.setCurrentTime(time);\n      };\n\n      if (this.options_.smoothQualityChange) {\n        videojs.log.warn('smoothQualityChange is deprecated and will be removed in the next major version');\n      }\n\n      this.masterPlaylistController_ = new MasterPlaylistController(this.options_);\n      var playbackWatcherOptions = videojs.mergeOptions({\n        liveRangeSafeTimeDelta: SAFE_TIME_DELTA\n      }, this.options_, {\n        seekable: function seekable() {\n          return _this3.seekable();\n        },\n        media: function media() {\n          return _this3.masterPlaylistController_.media();\n        },\n        masterPlaylistController: this.masterPlaylistController_\n      });\n      this.playbackWatcher_ = new PlaybackWatcher(playbackWatcherOptions);\n      this.masterPlaylistController_.on('error', function () {\n        var player = videojs.players[_this3.tech_.options_.playerId];\n        var error = _this3.masterPlaylistController_.error;\n\n        if (typeof error === 'object' && !error.code) {\n          error.code = 3;\n        } else if (typeof error === 'string') {\n          error = {\n            message: error,\n            code: 3\n          };\n        }\n\n        player.error(error);\n      });\n      var defaultSelector = this.options_.experimentalBufferBasedABR ? Vhs.movingAverageBandwidthSelector(0.55) : Vhs.STANDARD_PLAYLIST_SELECTOR; // `this` in selectPlaylist should be the VhsHandler for backwards\n      // compatibility with < v2\n\n      this.masterPlaylistController_.selectPlaylist = this.selectPlaylist ? this.selectPlaylist.bind(this) : defaultSelector.bind(this);\n      this.masterPlaylistController_.selectInitialPlaylist = Vhs.INITIAL_PLAYLIST_SELECTOR.bind(this); // re-expose some internal objects for backwards compatibility with < v2\n\n      this.playlists = this.masterPlaylistController_.masterPlaylistLoader_;\n      this.mediaSource = this.masterPlaylistController_.mediaSource; // Proxy assignment of some properties to the master playlist\n      // controller. Using a custom property for backwards compatibility\n      // with < v2\n\n      Object.defineProperties(this, {\n        selectPlaylist: {\n          get: function get() {\n            return this.masterPlaylistController_.selectPlaylist;\n          },\n          set: function set(selectPlaylist) {\n            this.masterPlaylistController_.selectPlaylist = selectPlaylist.bind(this);\n          }\n        },\n        throughput: {\n          get: function get() {\n            return this.masterPlaylistController_.mainSegmentLoader_.throughput.rate;\n          },\n          set: function set(throughput) {\n            this.masterPlaylistController_.mainSegmentLoader_.throughput.rate = throughput; // By setting `count` to 1 the throughput value becomes the starting value\n            // for the cumulative average\n\n            this.masterPlaylistController_.mainSegmentLoader_.throughput.count = 1;\n          }\n        },\n        bandwidth: {\n          get: function get() {\n            var playerBandwidthEst = this.masterPlaylistController_.mainSegmentLoader_.bandwidth;\n            var networkInformation = window.navigator.connection || window.navigator.mozConnection || window.navigator.webkitConnection;\n            var tenMbpsAsBitsPerSecond = 10e6;\n\n            if (this.options_.useNetworkInformationApi && networkInformation) {\n              // downlink returns Mbps\n              // https://developer.mozilla.org/en-US/docs/Web/API/NetworkInformation/downlink\n              var networkInfoBandwidthEstBitsPerSec = networkInformation.downlink * 1000 * 1000; // downlink maxes out at 10 Mbps. In the event that both networkInformationApi and the player\n              // estimate a bandwidth greater than 10 Mbps, use the larger of the two estimates to ensure that\n              // high quality streams are not filtered out.\n\n              if (networkInfoBandwidthEstBitsPerSec >= tenMbpsAsBitsPerSecond && playerBandwidthEst >= tenMbpsAsBitsPerSecond) {\n                playerBandwidthEst = Math.max(playerBandwidthEst, networkInfoBandwidthEstBitsPerSec);\n              } else {\n                playerBandwidthEst = networkInfoBandwidthEstBitsPerSec;\n              }\n            }\n\n            return playerBandwidthEst;\n          },\n          set: function set(bandwidth) {\n            this.masterPlaylistController_.mainSegmentLoader_.bandwidth = bandwidth; // setting the bandwidth manually resets the throughput counter\n            // `count` is set to zero that current value of `rate` isn't included\n            // in the cumulative average\n\n            this.masterPlaylistController_.mainSegmentLoader_.throughput = {\n              rate: 0,\n              count: 0\n            };\n          }\n        },\n\n        /**\n         * `systemBandwidth` is a combination of two serial processes bit-rates. The first\n         * is the network bitrate provided by `bandwidth` and the second is the bitrate of\n         * the entire process after that - decryption, transmuxing, and appending - provided\n         * by `throughput`.\n         *\n         * Since the two process are serial, the overall system bandwidth is given by:\n         *   sysBandwidth = 1 / (1 / bandwidth + 1 / throughput)\n         */\n        systemBandwidth: {\n          get: function get() {\n            var invBandwidth = 1 / (this.bandwidth || 1);\n            var invThroughput;\n\n            if (this.throughput > 0) {\n              invThroughput = 1 / this.throughput;\n            } else {\n              invThroughput = 0;\n            }\n\n            var systemBitrate = Math.floor(1 / (invBandwidth + invThroughput));\n            return systemBitrate;\n          },\n          set: function set() {\n            videojs.log.error('The \"systemBandwidth\" property is read-only');\n          }\n        }\n      });\n\n      if (this.options_.bandwidth) {\n        this.bandwidth = this.options_.bandwidth;\n      }\n\n      if (this.options_.throughput) {\n        this.throughput = this.options_.throughput;\n      }\n\n      Object.defineProperties(this.stats, {\n        bandwidth: {\n          get: function get() {\n            return _this3.bandwidth || 0;\n          },\n          enumerable: true\n        },\n        mediaRequests: {\n          get: function get() {\n            return _this3.masterPlaylistController_.mediaRequests_() || 0;\n          },\n          enumerable: true\n        },\n        mediaRequestsAborted: {\n          get: function get() {\n            return _this3.masterPlaylistController_.mediaRequestsAborted_() || 0;\n          },\n          enumerable: true\n        },\n        mediaRequestsTimedout: {\n          get: function get() {\n            return _this3.masterPlaylistController_.mediaRequestsTimedout_() || 0;\n          },\n          enumerable: true\n        },\n        mediaRequestsErrored: {\n          get: function get() {\n            return _this3.masterPlaylistController_.mediaRequestsErrored_() || 0;\n          },\n          enumerable: true\n        },\n        mediaTransferDuration: {\n          get: function get() {\n            return _this3.masterPlaylistController_.mediaTransferDuration_() || 0;\n          },\n          enumerable: true\n        },\n        mediaBytesTransferred: {\n          get: function get() {\n            return _this3.masterPlaylistController_.mediaBytesTransferred_() || 0;\n          },\n          enumerable: true\n        },\n        mediaSecondsLoaded: {\n          get: function get() {\n            return _this3.masterPlaylistController_.mediaSecondsLoaded_() || 0;\n          },\n          enumerable: true\n        },\n        mediaAppends: {\n          get: function get() {\n            return _this3.masterPlaylistController_.mediaAppends_() || 0;\n          },\n          enumerable: true\n        },\n        mainAppendsToLoadedData: {\n          get: function get() {\n            return _this3.masterPlaylistController_.mainAppendsToLoadedData_() || 0;\n          },\n          enumerable: true\n        },\n        audioAppendsToLoadedData: {\n          get: function get() {\n            return _this3.masterPlaylistController_.audioAppendsToLoadedData_() || 0;\n          },\n          enumerable: true\n        },\n        appendsToLoadedData: {\n          get: function get() {\n            return _this3.masterPlaylistController_.appendsToLoadedData_() || 0;\n          },\n          enumerable: true\n        },\n        timeToLoadedData: {\n          get: function get() {\n            return _this3.masterPlaylistController_.timeToLoadedData_() || 0;\n          },\n          enumerable: true\n        },\n        buffered: {\n          get: function get() {\n            return timeRangesToArray(_this3.tech_.buffered());\n          },\n          enumerable: true\n        },\n        currentTime: {\n          get: function get() {\n            return _this3.tech_.currentTime();\n          },\n          enumerable: true\n        },\n        currentSource: {\n          get: function get() {\n            return _this3.tech_.currentSource_;\n          },\n          enumerable: true\n        },\n        currentTech: {\n          get: function get() {\n            return _this3.tech_.name_;\n          },\n          enumerable: true\n        },\n        duration: {\n          get: function get() {\n            return _this3.tech_.duration();\n          },\n          enumerable: true\n        },\n        master: {\n          get: function get() {\n            return _this3.playlists.master;\n          },\n          enumerable: true\n        },\n        playerDimensions: {\n          get: function get() {\n            return _this3.tech_.currentDimensions();\n          },\n          enumerable: true\n        },\n        seekable: {\n          get: function get() {\n            return timeRangesToArray(_this3.tech_.seekable());\n          },\n          enumerable: true\n        },\n        timestamp: {\n          get: function get() {\n            return Date.now();\n          },\n          enumerable: true\n        },\n        videoPlaybackQuality: {\n          get: function get() {\n            return _this3.tech_.getVideoPlaybackQuality();\n          },\n          enumerable: true\n        }\n      });\n      this.tech_.one('canplay', this.masterPlaylistController_.setupFirstPlay.bind(this.masterPlaylistController_));\n      this.tech_.on('bandwidthupdate', function () {\n        if (_this3.options_.useBandwidthFromLocalStorage) {\n          updateVhsLocalStorage({\n            bandwidth: _this3.bandwidth,\n            throughput: Math.round(_this3.throughput)\n          });\n        }\n      });\n      this.masterPlaylistController_.on('selectedinitialmedia', function () {\n        // Add the manual rendition mix-in to VhsHandler\n        renditionSelectionMixin(_this3);\n      });\n      this.masterPlaylistController_.sourceUpdater_.on('createdsourcebuffers', function () {\n        _this3.setupEme_();\n      }); // the bandwidth of the primary segment loader is our best\n      // estimate of overall bandwidth\n\n      this.on(this.masterPlaylistController_, 'progress', function () {\n        this.tech_.trigger('progress');\n      }); // In the live case, we need to ignore the very first `seeking` event since\n      // that will be the result of the seek-to-live behavior\n\n      this.on(this.masterPlaylistController_, 'firstplay', function () {\n        this.ignoreNextSeekingEvent_ = true;\n      });\n      this.setupQualityLevels_(); // do nothing if the tech has been disposed already\n      // this can occur if someone sets the src in player.ready(), for instance\n\n      if (!this.tech_.el()) {\n        return;\n      }\n\n      this.mediaSourceUrl_ = window.URL.createObjectURL(this.masterPlaylistController_.mediaSource);\n      this.tech_.src(this.mediaSourceUrl_);\n    };\n\n    _proto.createKeySessions_ = function createKeySessions_() {\n      var _this4 = this;\n\n      var audioPlaylistLoader = this.masterPlaylistController_.mediaTypes_.AUDIO.activePlaylistLoader;\n      this.logger_('waiting for EME key session creation');\n      waitForKeySessionCreation({\n        player: this.player_,\n        sourceKeySystems: this.source_.keySystems,\n        audioMedia: audioPlaylistLoader && audioPlaylistLoader.media(),\n        mainPlaylists: this.playlists.master.playlists\n      }).then(function () {\n        _this4.logger_('created EME key session');\n\n        _this4.masterPlaylistController_.sourceUpdater_.initializedEme();\n      })[\"catch\"](function (err) {\n        _this4.logger_('error while creating EME key session', err);\n\n        _this4.player_.error({\n          message: 'Failed to initialize media keys for EME',\n          code: 3\n        });\n      });\n    };\n\n    _proto.handleWaitingForKey_ = function handleWaitingForKey_() {\n      // If waitingforkey is fired, it's possible that the data that's necessary to retrieve\n      // the key is in the manifest. While this should've happened on initial source load, it\n      // may happen again in live streams where the keys change, and the manifest info\n      // reflects the update.\n      //\n      // Because videojs-contrib-eme compares the PSSH data we send to that of PSSH data it's\n      // already requested keys for, we don't have to worry about this generating extraneous\n      // requests.\n      this.logger_('waitingforkey fired, attempting to create any new key sessions');\n      this.createKeySessions_();\n    }\n    /**\n     * If necessary and EME is available, sets up EME options and waits for key session\n     * creation.\n     *\n     * This function also updates the source updater so taht it can be used, as for some\n     * browsers, EME must be configured before content is appended (if appending unencrypted\n     * content before encrypted content).\n     */\n    ;\n\n    _proto.setupEme_ = function setupEme_() {\n      var _this5 = this;\n\n      var audioPlaylistLoader = this.masterPlaylistController_.mediaTypes_.AUDIO.activePlaylistLoader;\n      var didSetupEmeOptions = setupEmeOptions({\n        player: this.player_,\n        sourceKeySystems: this.source_.keySystems,\n        media: this.playlists.media(),\n        audioMedia: audioPlaylistLoader && audioPlaylistLoader.media()\n      });\n      this.player_.tech_.on('keystatuschange', function (e) {\n        if (e.status !== 'output-restricted') {\n          return;\n        }\n\n        var masterPlaylist = _this5.masterPlaylistController_.master();\n\n        if (!masterPlaylist || !masterPlaylist.playlists) {\n          return;\n        }\n\n        var excludedHDPlaylists = []; // Assume all HD streams are unplayable and exclude them from ABR selection\n\n        masterPlaylist.playlists.forEach(function (playlist) {\n          if (playlist && playlist.attributes && playlist.attributes.RESOLUTION && playlist.attributes.RESOLUTION.height >= 720) {\n            if (!playlist.excludeUntil || playlist.excludeUntil < Infinity) {\n              playlist.excludeUntil = Infinity;\n              excludedHDPlaylists.push(playlist);\n            }\n          }\n        });\n\n        if (excludedHDPlaylists.length) {\n          var _videojs$log;\n\n          (_videojs$log = videojs.log).warn.apply(_videojs$log, ['DRM keystatus changed to \"output-restricted.\" Removing the following HD playlists ' + 'that will most likely fail to play and clearing the buffer. ' + 'This may be due to HDCP restrictions on the stream and the capabilities of the current device.'].concat(excludedHDPlaylists)); // Clear the buffer before switching playlists, since it may already contain unplayable segments\n\n\n          _this5.masterPlaylistController_.fastQualityChange_();\n        }\n      });\n      this.handleWaitingForKey_ = this.handleWaitingForKey_.bind(this);\n      this.player_.tech_.on('waitingforkey', this.handleWaitingForKey_); // In IE11 this is too early to initialize media keys, and IE11 does not support\n      // promises.\n\n      if (videojs.browser.IE_VERSION === 11 || !didSetupEmeOptions) {\n        // If EME options were not set up, we've done all we could to initialize EME.\n        this.masterPlaylistController_.sourceUpdater_.initializedEme();\n        return;\n      }\n\n      this.createKeySessions_();\n    }\n    /**\n     * Initializes the quality levels and sets listeners to update them.\n     *\n     * @method setupQualityLevels_\n     * @private\n     */\n    ;\n\n    _proto.setupQualityLevels_ = function setupQualityLevels_() {\n      var _this6 = this;\n\n      var player = videojs.players[this.tech_.options_.playerId]; // if there isn't a player or there isn't a qualityLevels plugin\n      // or qualityLevels_ listeners have already been setup, do nothing.\n\n      if (!player || !player.qualityLevels || this.qualityLevels_) {\n        return;\n      }\n\n      this.qualityLevels_ = player.qualityLevels();\n      this.masterPlaylistController_.on('selectedinitialmedia', function () {\n        handleVhsLoadedMetadata(_this6.qualityLevels_, _this6);\n      });\n      this.playlists.on('mediachange', function () {\n        handleVhsMediaChange(_this6.qualityLevels_, _this6.playlists);\n      });\n    }\n    /**\n     * return the version\n     */\n    ;\n\n    VhsHandler.version = function version$5() {\n      return {\n        '@videojs/http-streaming': version$4,\n        'mux.js': version$3,\n        'mpd-parser': version$2,\n        'm3u8-parser': version$1,\n        'aes-decrypter': version\n      };\n    }\n    /**\n     * return the version\n     */\n    ;\n\n    _proto.version = function version() {\n      return this.constructor.version();\n    };\n\n    _proto.canChangeType = function canChangeType() {\n      return SourceUpdater.canChangeType();\n    }\n    /**\n     * Begin playing the video.\n     */\n    ;\n\n    _proto.play = function play() {\n      this.masterPlaylistController_.play();\n    }\n    /**\n     * a wrapper around the function in MasterPlaylistController\n     */\n    ;\n\n    _proto.setCurrentTime = function setCurrentTime(currentTime) {\n      this.masterPlaylistController_.setCurrentTime(currentTime);\n    }\n    /**\n     * a wrapper around the function in MasterPlaylistController\n     */\n    ;\n\n    _proto.duration = function duration() {\n      return this.masterPlaylistController_.duration();\n    }\n    /**\n     * a wrapper around the function in MasterPlaylistController\n     */\n    ;\n\n    _proto.seekable = function seekable() {\n      return this.masterPlaylistController_.seekable();\n    }\n    /**\n     * Abort all outstanding work and cleanup.\n     */\n    ;\n\n    _proto.dispose = function dispose() {\n      if (this.playbackWatcher_) {\n        this.playbackWatcher_.dispose();\n      }\n\n      if (this.masterPlaylistController_) {\n        this.masterPlaylistController_.dispose();\n      }\n\n      if (this.qualityLevels_) {\n        this.qualityLevels_.dispose();\n      }\n\n      if (this.player_) {\n        delete this.player_.vhs;\n        delete this.player_.dash;\n        delete this.player_.hls;\n      }\n\n      if (this.tech_ && this.tech_.vhs) {\n        delete this.tech_.vhs;\n      } // don't check this.tech_.hls as it will log a deprecated warning\n\n\n      if (this.tech_) {\n        delete this.tech_.hls;\n      }\n\n      if (this.mediaSourceUrl_ && window.URL.revokeObjectURL) {\n        window.URL.revokeObjectURL(this.mediaSourceUrl_);\n        this.mediaSourceUrl_ = null;\n      }\n\n      if (this.tech_) {\n        this.tech_.off('waitingforkey', this.handleWaitingForKey_);\n      }\n\n      _Component.prototype.dispose.call(this);\n    };\n\n    _proto.convertToProgramTime = function convertToProgramTime(time, callback) {\n      return getProgramTime({\n        playlist: this.masterPlaylistController_.media(),\n        time: time,\n        callback: callback\n      });\n    } // the player must be playing before calling this\n    ;\n\n    _proto.seekToProgramTime = function seekToProgramTime$1(programTime, callback, pauseAfterSeek, retryCount) {\n      if (pauseAfterSeek === void 0) {\n        pauseAfterSeek = true;\n      }\n\n      if (retryCount === void 0) {\n        retryCount = 2;\n      }\n\n      return seekToProgramTime({\n        programTime: programTime,\n        playlist: this.masterPlaylistController_.media(),\n        retryCount: retryCount,\n        pauseAfterSeek: pauseAfterSeek,\n        seekTo: this.options_.seekTo,\n        tech: this.options_.tech,\n        callback: callback\n      });\n    };\n\n    return VhsHandler;\n  }(Component);\n  /**\n   * The Source Handler object, which informs video.js what additional\n   * MIME types are supported and sets up playback. It is registered\n   * automatically to the appropriate tech based on the capabilities of\n   * the browser it is running in. It is not necessary to use or modify\n   * this object in normal usage.\n   */\n\n\n  var VhsSourceHandler = {\n    name: 'videojs-http-streaming',\n    VERSION: version$4,\n    canHandleSource: function canHandleSource(srcObj, options) {\n      if (options === void 0) {\n        options = {};\n      }\n\n      var localOptions = videojs.mergeOptions(videojs.options, options);\n      return VhsSourceHandler.canPlayType(srcObj.type, localOptions);\n    },\n    handleSource: function handleSource(source, tech, options) {\n      if (options === void 0) {\n        options = {};\n      }\n\n      var localOptions = videojs.mergeOptions(videojs.options, options);\n      tech.vhs = new VhsHandler(source, tech, localOptions);\n\n      if (!videojs.hasOwnProperty('hls')) {\n        Object.defineProperty(tech, 'hls', {\n          get: function get() {\n            videojs.log.warn('player.tech().hls is deprecated. Use player.tech().vhs instead.');\n            return tech.vhs;\n          },\n          configurable: true\n        });\n      }\n\n      tech.vhs.xhr = xhrFactory();\n      tech.vhs.src(source.src, source.type);\n      return tech.vhs;\n    },\n    canPlayType: function canPlayType(type, options) {\n      if (options === void 0) {\n        options = {};\n      }\n\n      var _videojs$mergeOptions = videojs.mergeOptions(videojs.options, options),\n          _videojs$mergeOptions2 = _videojs$mergeOptions.vhs;\n\n      _videojs$mergeOptions2 = _videojs$mergeOptions2 === void 0 ? {} : _videojs$mergeOptions2;\n      var _videojs$mergeOptions3 = _videojs$mergeOptions2.overrideNative,\n          overrideNative = _videojs$mergeOptions3 === void 0 ? !videojs.browser.IS_ANY_SAFARI : _videojs$mergeOptions3,\n          _videojs$mergeOptions4 = _videojs$mergeOptions.hls;\n      _videojs$mergeOptions4 = _videojs$mergeOptions4 === void 0 ? {} : _videojs$mergeOptions4;\n      var _videojs$mergeOptions5 = _videojs$mergeOptions4.overrideNative,\n          legacyOverrideNative = _videojs$mergeOptions5 === void 0 ? false : _videojs$mergeOptions5;\n      var supportedType = simpleTypeFromSourceType(type);\n      var canUseMsePlayback = supportedType && (!Vhs.supportsTypeNatively(supportedType) || legacyOverrideNative || overrideNative);\n      return canUseMsePlayback ? 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+{"version":3,"file":"video-lazy.min.js","sources":["../src/video-lazy.js"],"sourcesContent":["/**\n * @license\n * Video.js 8.3.0 <http://videojs.com/>\n * Copyright Brightcove, Inc. <https://www.brightcove.com/>\n * Available under Apache License Version 2.0\n * <https://github.com/videojs/video.js/blob/main/LICENSE>\n *\n * Includes vtt.js <https://github.com/mozilla/vtt.js>\n * Available under Apache License Version 2.0\n * <https://github.com/mozilla/vtt.js/blob/main/LICENSE>\n */\n\n(function (global, factory) {\n    typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :\n        typeof define === 'function' && define.amd ? define(factory) :\n            (global = typeof globalThis !== 'undefined' ? globalThis : global || self, global.videojs = factory());\n})(this, (function () { 'use strict';\n\n    var version$5 = \"8.3.0\";\n\n    /**\n     * An Object that contains lifecycle hooks as keys which point to an array\n     * of functions that are run when a lifecycle is triggered\n     *\n     * @private\n     */\n    const hooks_ = {};\n\n    /**\n     * Get a list of hooks for a specific lifecycle\n     *\n     * @param  {string} type\n     *         the lifecycle to get hooks from\n     *\n     * @param  {Function|Function[]} [fn]\n     *         Optionally add a hook (or hooks) to the lifecycle that your are getting.\n     *\n     * @return {Array}\n     *         an array of hooks, or an empty array if there are none.\n     */\n    const hooks = function (type, fn) {\n        hooks_[type] = hooks_[type] || [];\n        if (fn) {\n            hooks_[type] = hooks_[type].concat(fn);\n        }\n        return hooks_[type];\n    };\n\n    /**\n     * Add a function hook to a specific videojs lifecycle.\n     *\n     * @param {string} type\n     *        the lifecycle to hook the function to.\n     *\n     * @param {Function|Function[]}\n     *        The function or array of functions to attach.\n     */\n    const hook = function (type, fn) {\n        hooks(type, fn);\n    };\n\n    /**\n     * Remove a hook from a specific videojs lifecycle.\n     *\n     * @param  {string} type\n     *         the lifecycle that the function hooked to\n     *\n     * @param  {Function} fn\n     *         The hooked function to remove\n     *\n     * @return {boolean}\n     *         The function that was removed or undef\n     */\n    const removeHook = function (type, fn) {\n        const index = hooks(type).indexOf(fn);\n        if (index <= -1) {\n            return false;\n        }\n        hooks_[type] = hooks_[type].slice();\n        hooks_[type].splice(index, 1);\n        return true;\n    };\n\n    /**\n     * Add a function hook that will only run once to a specific videojs lifecycle.\n     *\n     * @param {string} type\n     *        the lifecycle to hook the function to.\n     *\n     * @param {Function|Function[]}\n     *        The function or array of functions to attach.\n     */\n    const hookOnce = function (type, fn) {\n        hooks(type, [].concat(fn).map(original => {\n            const wrapper = (...args) => {\n                removeHook(type, wrapper);\n                return original(...args);\n            };\n            return wrapper;\n        }));\n    };\n\n    /**\n     * @file fullscreen-api.js\n     * @module fullscreen-api\n     */\n\n    /**\n     * Store the browser-specific methods for the fullscreen API.\n     *\n     * @type {Object}\n     * @see [Specification]{@link https://fullscreen.spec.whatwg.org}\n     * @see [Map Approach From Screenfull.js]{@link https://github.com/sindresorhus/screenfull.js}\n     */\n    const FullscreenApi = {\n        prefixed: true\n    };\n\n    // browser API methods\n    const apiMap = [['requestFullscreen', 'exitFullscreen', 'fullscreenElement', 'fullscreenEnabled', 'fullscreenchange', 'fullscreenerror', 'fullscreen'],\n        // WebKit\n        ['webkitRequestFullscreen', 'webkitExitFullscreen', 'webkitFullscreenElement', 'webkitFullscreenEnabled', 'webkitfullscreenchange', 'webkitfullscreenerror', '-webkit-full-screen'],\n        // Mozilla\n        ['mozRequestFullScreen', 'mozCancelFullScreen', 'mozFullScreenElement', 'mozFullScreenEnabled', 'mozfullscreenchange', 'mozfullscreenerror', '-moz-full-screen'],\n        // Microsoft\n        ['msRequestFullscreen', 'msExitFullscreen', 'msFullscreenElement', 'msFullscreenEnabled', 'MSFullscreenChange', 'MSFullscreenError', '-ms-fullscreen']];\n    const specApi = apiMap[0];\n    let browserApi;\n\n    // determine the supported set of functions\n    for (let i = 0; i < apiMap.length; i++) {\n        // check for exitFullscreen function\n        if (apiMap[i][1] in document) {\n            browserApi = apiMap[i];\n            break;\n        }\n    }\n\n    // map the browser API names to the spec API names\n    if (browserApi) {\n        for (let i = 0; i < browserApi.length; i++) {\n            FullscreenApi[specApi[i]] = browserApi[i];\n        }\n        FullscreenApi.prefixed = browserApi[0] !== specApi[0];\n    }\n\n    /**\n     * @file create-logger.js\n     * @module create-logger\n     */\n\n        // This is the private tracking variable for the logging history.\n    let history = [];\n\n    /**\n     * Log messages to the console and history based on the type of message\n     *\n     * @private\n     * @param  {string} type\n     *         The name of the console method to use.\n     *\n     * @param  {Array} args\n     *         The arguments to be passed to the matching console method.\n     */\n    const LogByTypeFactory = (name, log) => (type, level, args) => {\n        const lvl = log.levels[level];\n        const lvlRegExp = new RegExp(`^(${lvl})$`);\n        if (type !== 'log') {\n            // Add the type to the front of the message when it's not \"log\".\n            args.unshift(type.toUpperCase() + ':');\n        }\n\n        // Add console prefix after adding to history.\n        args.unshift(name + ':');\n\n        // Add a clone of the args at this point to history.\n        if (history) {\n            history.push([].concat(args));\n\n            // only store 1000 history entries\n            const splice = history.length - 1000;\n            history.splice(0, splice > 0 ? splice : 0);\n        }\n\n        // If there's no console then don't try to output messages, but they will\n        // still be stored in history.\n        if (!window.console) {\n            return;\n        }\n\n        // Was setting these once outside of this function, but containing them\n        // in the function makes it easier to test cases where console doesn't exist\n        // when the module is executed.\n        let fn = window.console[type];\n        if (!fn && type === 'debug') {\n            // Certain browsers don't have support for console.debug. For those, we\n            // should default to the closest comparable log.\n            fn = window.console.info || window.console.log;\n        }\n\n        // Bail out if there's no console or if this type is not allowed by the\n        // current logging level.\n        if (!fn || !lvl || !lvlRegExp.test(type)) {\n            return;\n        }\n        fn[Array.isArray(args) ? 'apply' : 'call'](window.console, args);\n    };\n    function createLogger$1(name) {\n        // This is the private tracking variable for logging level.\n        let level = 'info';\n\n        // the curried logByType bound to the specific log and history\n        let logByType;\n\n        /**\n         * Logs plain debug messages. Similar to `console.log`.\n         *\n         * Due to [limitations](https://github.com/jsdoc3/jsdoc/issues/955#issuecomment-313829149)\n         * of our JSDoc template, we cannot properly document this as both a function\n         * and a namespace, so its function signature is documented here.\n         *\n         * #### Arguments\n         * ##### *args\n         * *[]\n         *\n         * Any combination of values that could be passed to `console.log()`.\n         *\n         * #### Return Value\n         *\n         * `undefined`\n         *\n         * @namespace\n         * @param    {...*} args\n         *           One or more messages or objects that should be logged.\n         */\n        const log = function (...args) {\n            logByType('log', level, args);\n        };\n\n        // This is the logByType helper that the logging methods below use\n        logByType = LogByTypeFactory(name, log);\n\n        /**\n         * Create a new sublogger which chains the old name to the new name.\n         *\n         * For example, doing `videojs.log.createLogger('player')` and then using that logger will log the following:\n         * ```js\n         *  mylogger('foo');\n         *  // > VIDEOJS: player: foo\n         * ```\n         *\n         * @param {string} name\n         *        The name to add call the new logger\n         * @return {Object}\n         */\n        log.createLogger = subname => createLogger$1(name + ': ' + subname);\n\n        /**\n         * Enumeration of available logging levels, where the keys are the level names\n         * and the values are `|`-separated strings containing logging methods allowed\n         * in that logging level. These strings are used to create a regular expression\n         * matching the function name being called.\n         *\n         * Levels provided by Video.js are:\n         *\n         * - `off`: Matches no calls. Any value that can be cast to `false` will have\n         *   this effect. The most restrictive.\n         * - `all`: Matches only Video.js-provided functions (`debug`, `log`,\n         *   `log.warn`, and `log.error`).\n         * - `debug`: Matches `log.debug`, `log`, `log.warn`, and `log.error` calls.\n         * - `info` (default): Matches `log`, `log.warn`, and `log.error` calls.\n         * - `warn`: Matches `log.warn` and `log.error` calls.\n         * - `error`: Matches only `log.error` calls.\n         *\n         * @type {Object}\n         */\n        log.levels = {\n            all: 'debug|log|warn|error',\n            off: '',\n            debug: 'debug|log|warn|error',\n            info: 'log|warn|error',\n            warn: 'warn|error',\n            error: 'error',\n            DEFAULT: level\n        };\n\n        /**\n         * Get or set the current logging level.\n         *\n         * If a string matching a key from {@link module:log.levels} is provided, acts\n         * as a setter.\n         *\n         * @param  {string} [lvl]\n         *         Pass a valid level to set a new logging level.\n         *\n         * @return {string}\n         *         The current logging level.\n         */\n        log.level = lvl => {\n            if (typeof lvl === 'string') {\n                if (!log.levels.hasOwnProperty(lvl)) {\n                    throw new Error(`\"${lvl}\" in not a valid log level`);\n                }\n                level = lvl;\n            }\n            return level;\n        };\n\n        /**\n         * Returns an array containing everything that has been logged to the history.\n         *\n         * This array is a shallow clone of the internal history record. However, its\n         * contents are _not_ cloned; so, mutating objects inside this array will\n         * mutate them in history.\n         *\n         * @return {Array}\n         */\n        log.history = () => history ? [].concat(history) : [];\n\n        /**\n         * Allows you to filter the history by the given logger name\n         *\n         * @param {string} fname\n         *        The name to filter by\n         *\n         * @return {Array}\n         *         The filtered list to return\n         */\n        log.history.filter = fname => {\n            return (history || []).filter(historyItem => {\n                // if the first item in each historyItem includes `fname`, then it's a match\n                return new RegExp(`.*${fname}.*`).test(historyItem[0]);\n            });\n        };\n\n        /**\n         * Clears the internal history tracking, but does not prevent further history\n         * tracking.\n         */\n        log.history.clear = () => {\n            if (history) {\n                history.length = 0;\n            }\n        };\n\n        /**\n         * Disable history tracking if it is currently enabled.\n         */\n        log.history.disable = () => {\n            if (history !== null) {\n                history.length = 0;\n                history = null;\n            }\n        };\n\n        /**\n         * Enable history tracking if it is currently disabled.\n         */\n        log.history.enable = () => {\n            if (history === null) {\n                history = [];\n            }\n        };\n\n        /**\n         * Logs error messages. Similar to `console.error`.\n         *\n         * @param {...*} args\n         *        One or more messages or objects that should be logged as an error\n         */\n        log.error = (...args) => logByType('error', level, args);\n\n        /**\n         * Logs warning messages. Similar to `console.warn`.\n         *\n         * @param {...*} args\n         *        One or more messages or objects that should be logged as a warning.\n         */\n        log.warn = (...args) => logByType('warn', level, args);\n\n        /**\n         * Logs debug messages. Similar to `console.debug`, but may also act as a comparable\n         * log if `console.debug` is not available\n         *\n         * @param {...*} args\n         *        One or more messages or objects that should be logged as debug.\n         */\n        log.debug = (...args) => logByType('debug', level, args);\n        return log;\n    }\n\n    /**\n     * @file log.js\n     * @module log\n     */\n    const log$1 = createLogger$1('VIDEOJS');\n    const createLogger = log$1.createLogger;\n\n    /**\n     * @file obj.js\n     * @module obj\n     */\n\n    /**\n     * @callback obj:EachCallback\n     *\n     * @param {*} value\n     *        The current key for the object that is being iterated over.\n     *\n     * @param {string} key\n     *        The current key-value for object that is being iterated over\n     */\n\n    /**\n     * @callback obj:ReduceCallback\n     *\n     * @param {*} accum\n     *        The value that is accumulating over the reduce loop.\n     *\n     * @param {*} value\n     *        The current key for the object that is being iterated over.\n     *\n     * @param {string} key\n     *        The current key-value for object that is being iterated over\n     *\n     * @return {*}\n     *         The new accumulated value.\n     */\n    const toString$1 = Object.prototype.toString;\n\n    /**\n     * Get the keys of an Object\n     *\n     * @param {Object}\n     *        The Object to get the keys from\n     *\n     * @return {string[]}\n     *         An array of the keys from the object. Returns an empty array if the\n     *         object passed in was invalid or had no keys.\n     *\n     * @private\n     */\n    const keys = function (object) {\n        return isObject$1(object) ? Object.keys(object) : [];\n    };\n\n    /**\n     * Array-like iteration for objects.\n     *\n     * @param {Object} object\n     *        The object to iterate over\n     *\n     * @param {obj:EachCallback} fn\n     *        The callback function which is called for each key in the object.\n     */\n    function each(object, fn) {\n        keys(object).forEach(key => fn(object[key], key));\n    }\n\n    /**\n     * Array-like reduce for objects.\n     *\n     * @param {Object} object\n     *        The Object that you want to reduce.\n     *\n     * @param {Function} fn\n     *         A callback function which is called for each key in the object. It\n     *         receives the accumulated value and the per-iteration value and key\n     *         as arguments.\n     *\n     * @param {*} [initial = 0]\n     *        Starting value\n     *\n     * @return {*}\n     *         The final accumulated value.\n     */\n    function reduce(object, fn, initial = 0) {\n        return keys(object).reduce((accum, key) => fn(accum, object[key], key), initial);\n    }\n\n    /**\n     * Returns whether a value is an object of any kind - including DOM nodes,\n     * arrays, regular expressions, etc. Not functions, though.\n     *\n     * This avoids the gotcha where using `typeof` on a `null` value\n     * results in `'object'`.\n     *\n     * @param  {Object} value\n     * @return {boolean}\n     */\n    function isObject$1(value) {\n        return !!value && typeof value === 'object';\n    }\n\n    /**\n     * Returns whether an object appears to be a \"plain\" object - that is, a\n     * direct instance of `Object`.\n     *\n     * @param  {Object} value\n     * @return {boolean}\n     */\n    function isPlain(value) {\n        return isObject$1(value) && toString$1.call(value) === '[object Object]' && value.constructor === Object;\n    }\n\n    /**\n     * Merge two objects recursively.\n     *\n     * Performs a deep merge like\n     * {@link https://lodash.com/docs/4.17.10#merge|lodash.merge}, but only merges\n     * plain objects (not arrays, elements, or anything else).\n     *\n     * Non-plain object values will be copied directly from the right-most\n     * argument.\n     *\n     * @param   {Object[]} sources\n     *          One or more objects to merge into a new object.\n     *\n     * @return {Object}\n     *          A new object that is the merged result of all sources.\n     */\n    function merge$2(...sources) {\n        const result = {};\n        sources.forEach(source => {\n            if (!source) {\n                return;\n            }\n            each(source, (value, key) => {\n                if (!isPlain(value)) {\n                    result[key] = value;\n                    return;\n                }\n                if (!isPlain(result[key])) {\n                    result[key] = {};\n                }\n                result[key] = merge$2(result[key], value);\n            });\n        });\n        return result;\n    }\n\n    /**\n     * Object.defineProperty but \"lazy\", which means that the value is only set after\n     * it is retrieved the first time, rather than being set right away.\n     *\n     * @param {Object} obj the object to set the property on\n     * @param {string} key the key for the property to set\n     * @param {Function} getValue the function used to get the value when it is needed.\n     * @param {boolean} setter whether a setter should be allowed or not\n     */\n    function defineLazyProperty(obj, key, getValue, setter = true) {\n        const set = value => Object.defineProperty(obj, key, {\n            value,\n            enumerable: true,\n            writable: true\n        });\n        const options = {\n            configurable: true,\n            enumerable: true,\n            get() {\n                const value = getValue();\n                set(value);\n                return value;\n            }\n        };\n        if (setter) {\n            options.set = set;\n        }\n        return Object.defineProperty(obj, key, options);\n    }\n\n    var Obj = /*#__PURE__*/Object.freeze({\n        __proto__: null,\n        each: each,\n        reduce: reduce,\n        isObject: isObject$1,\n        isPlain: isPlain,\n        merge: merge$2,\n        defineLazyProperty: defineLazyProperty\n    });\n\n    /**\n     * @file browser.js\n     * @module browser\n     */\n\n    /**\n     * Whether or not this device is an iPod.\n     *\n     * @static\n     * @type {Boolean}\n     */\n    let IS_IPOD = false;\n\n    /**\n     * The detected iOS version - or `null`.\n     *\n     * @static\n     * @type {string|null}\n     */\n    let IOS_VERSION = null;\n\n    /**\n     * Whether or not this is an Android device.\n     *\n     * @static\n     * @type {Boolean}\n     */\n    let IS_ANDROID = false;\n\n    /**\n     * The detected Android version - or `null` if not Android or indeterminable.\n     *\n     * @static\n     * @type {number|string|null}\n     */\n    let ANDROID_VERSION;\n\n    /**\n     * Whether or not this is Mozilla Firefox.\n     *\n     * @static\n     * @type {Boolean}\n     */\n    let IS_FIREFOX = false;\n\n    /**\n     * Whether or not this is Microsoft Edge.\n     *\n     * @static\n     * @type {Boolean}\n     */\n    let IS_EDGE = false;\n\n    /**\n     * Whether or not this is any Chromium Browser\n     *\n     * @static\n     * @type {Boolean}\n     */\n    let IS_CHROMIUM = false;\n\n    /**\n     * Whether or not this is any Chromium browser that is not Edge.\n     *\n     * This will also be `true` for Chrome on iOS, which will have different support\n     * as it is actually Safari under the hood.\n     *\n     * Deprecated, as the behaviour to not match Edge was to prevent Legacy Edge's UA matching.\n     * IS_CHROMIUM should be used instead.\n     * \"Chromium but not Edge\" could be explicitly tested with IS_CHROMIUM && !IS_EDGE\n     *\n     * @static\n     * @deprecated\n     * @type {Boolean}\n     */\n    let IS_CHROME = false;\n\n    /**\n     * The detected Chromium version - or `null`.\n     *\n     * @static\n     * @type {number|null}\n     */\n    let CHROMIUM_VERSION = null;\n\n    /**\n     * The detected Google Chrome version - or `null`.\n     * This has always been the _Chromium_ version, i.e. would return on Chromium Edge.\n     * Deprecated, use CHROMIUM_VERSION instead.\n     *\n     * @static\n     * @deprecated\n     * @type {number|null}\n     */\n    let CHROME_VERSION = null;\n\n    /**\n     * The detected Internet Explorer version - or `null`.\n     *\n     * @static\n     * @deprecated\n     * @type {number|null}\n     */\n    let IE_VERSION = null;\n\n    /**\n     * Whether or not this is desktop Safari.\n     *\n     * @static\n     * @type {Boolean}\n     */\n    let IS_SAFARI = false;\n\n    /**\n     * Whether or not this is a Windows machine.\n     *\n     * @static\n     * @type {Boolean}\n     */\n    let IS_WINDOWS = false;\n\n    /**\n     * Whether or not this device is an iPad.\n     *\n     * @static\n     * @type {Boolean}\n     */\n    let IS_IPAD = false;\n\n    /**\n     * Whether or not this device is an iPhone.\n     *\n     * @static\n     * @type {Boolean}\n     */\n        // The Facebook app's UIWebView identifies as both an iPhone and iPad, so\n        // to identify iPhones, we need to exclude iPads.\n        // http://artsy.github.io/blog/2012/10/18/the-perils-of-ios-user-agent-sniffing/\n    let IS_IPHONE = false;\n\n    /**\n     * Whether or not this device is touch-enabled.\n     *\n     * @static\n     * @const\n     * @type {Boolean}\n     */\n    const TOUCH_ENABLED = Boolean(isReal() && ('ontouchstart' in window || window.navigator.maxTouchPoints || window.DocumentTouch && window.document instanceof window.DocumentTouch));\n    const UAD = window.navigator && window.navigator.userAgentData;\n    if (UAD) {\n        // If userAgentData is present, use it instead of userAgent to avoid warnings\n        // Currently only implemented on Chromium\n        // userAgentData does not expose Android version, so ANDROID_VERSION remains `null`\n\n        IS_ANDROID = UAD.platform === 'Android';\n        IS_EDGE = Boolean(UAD.brands.find(b => b.brand === 'Microsoft Edge'));\n        IS_CHROMIUM = Boolean(UAD.brands.find(b => b.brand === 'Chromium'));\n        IS_CHROME = !IS_EDGE && IS_CHROMIUM;\n        CHROMIUM_VERSION = CHROME_VERSION = (UAD.brands.find(b => b.brand === 'Chromium') || {}).version || null;\n        IS_WINDOWS = UAD.platform === 'Windows';\n    }\n\n    // If the browser is not Chromium, either userAgentData is not present which could be an old Chromium browser,\n    //  or it's a browser that has added userAgentData since that we don't have tests for yet. In either case,\n    // the checks need to be made agiainst the regular userAgent string.\n    if (!IS_CHROMIUM) {\n        const USER_AGENT = window.navigator && window.navigator.userAgent || '';\n        IS_IPOD = /iPod/i.test(USER_AGENT);\n        IOS_VERSION = function () {\n            const match = USER_AGENT.match(/OS (\\d+)_/i);\n            if (match && match[1]) {\n                return match[1];\n            }\n            return null;\n        }();\n        IS_ANDROID = /Android/i.test(USER_AGENT);\n        ANDROID_VERSION = function () {\n            // This matches Android Major.Minor.Patch versions\n            // ANDROID_VERSION is Major.Minor as a Number, if Minor isn't available, then only Major is returned\n            const match = USER_AGENT.match(/Android (\\d+)(?:\\.(\\d+))?(?:\\.(\\d+))*/i);\n            if (!match) {\n                return null;\n            }\n            const major = match[1] && parseFloat(match[1]);\n            const minor = match[2] && parseFloat(match[2]);\n            if (major && minor) {\n                return parseFloat(match[1] + '.' + match[2]);\n            } else if (major) {\n                return major;\n            }\n            return null;\n        }();\n        IS_FIREFOX = /Firefox/i.test(USER_AGENT);\n        IS_EDGE = /Edg/i.test(USER_AGENT);\n        IS_CHROMIUM = /Chrome/i.test(USER_AGENT) || /CriOS/i.test(USER_AGENT);\n        IS_CHROME = !IS_EDGE && IS_CHROMIUM;\n        CHROMIUM_VERSION = CHROME_VERSION = function () {\n            const match = USER_AGENT.match(/(Chrome|CriOS)\\/(\\d+)/);\n            if (match && match[2]) {\n                return parseFloat(match[2]);\n            }\n            return null;\n        }();\n        IE_VERSION = function () {\n            const result = /MSIE\\s(\\d+)\\.\\d/.exec(USER_AGENT);\n            let version = result && parseFloat(result[1]);\n            if (!version && /Trident\\/7.0/i.test(USER_AGENT) && /rv:11.0/.test(USER_AGENT)) {\n                // IE 11 has a different user agent string than other IE versions\n                version = 11.0;\n            }\n            return version;\n        }();\n        IS_SAFARI = /Safari/i.test(USER_AGENT) && !IS_CHROME && !IS_ANDROID && !IS_EDGE;\n        IS_WINDOWS = /Windows/i.test(USER_AGENT);\n        IS_IPAD = /iPad/i.test(USER_AGENT) || IS_SAFARI && TOUCH_ENABLED && !/iPhone/i.test(USER_AGENT);\n        IS_IPHONE = /iPhone/i.test(USER_AGENT) && !IS_IPAD;\n    }\n\n    /**\n     * Whether or not this is an iOS device.\n     *\n     * @static\n     * @const\n     * @type {Boolean}\n     */\n    const IS_IOS = IS_IPHONE || IS_IPAD || IS_IPOD;\n\n    /**\n     * Whether or not this is any flavor of Safari - including iOS.\n     *\n     * @static\n     * @const\n     * @type {Boolean}\n     */\n    const IS_ANY_SAFARI = (IS_SAFARI || IS_IOS) && !IS_CHROME;\n\n    var browser = /*#__PURE__*/Object.freeze({\n        __proto__: null,\n        get IS_IPOD () { return IS_IPOD; },\n        get IOS_VERSION () { return IOS_VERSION; },\n        get IS_ANDROID () { return IS_ANDROID; },\n        get ANDROID_VERSION () { return ANDROID_VERSION; },\n        get IS_FIREFOX () { return IS_FIREFOX; },\n        get IS_EDGE () { return IS_EDGE; },\n        get IS_CHROMIUM () { return IS_CHROMIUM; },\n        get IS_CHROME () { return IS_CHROME; },\n        get CHROMIUM_VERSION () { return CHROMIUM_VERSION; },\n        get CHROME_VERSION () { return CHROME_VERSION; },\n        get IE_VERSION () { return IE_VERSION; },\n        get IS_SAFARI () { return IS_SAFARI; },\n        get IS_WINDOWS () { return IS_WINDOWS; },\n        get IS_IPAD () { return IS_IPAD; },\n        get IS_IPHONE () { return IS_IPHONE; },\n        TOUCH_ENABLED: TOUCH_ENABLED,\n        IS_IOS: IS_IOS,\n        IS_ANY_SAFARI: IS_ANY_SAFARI\n    });\n\n    /**\n     * @file dom.js\n     * @module dom\n     */\n\n    /**\n     * Detect if a value is a string with any non-whitespace characters.\n     *\n     * @private\n     * @param  {string} str\n     *         The string to check\n     *\n     * @return {boolean}\n     *         Will be `true` if the string is non-blank, `false` otherwise.\n     *\n     */\n    function isNonBlankString(str) {\n        // we use str.trim as it will trim any whitespace characters\n        // from the front or back of non-whitespace characters. aka\n        // Any string that contains non-whitespace characters will\n        // still contain them after `trim` but whitespace only strings\n        // will have a length of 0, failing this check.\n        return typeof str === 'string' && Boolean(str.trim());\n    }\n\n    /**\n     * Throws an error if the passed string has whitespace. This is used by\n     * class methods to be relatively consistent with the classList API.\n     *\n     * @private\n     * @param  {string} str\n     *         The string to check for whitespace.\n     *\n     * @throws {Error}\n     *         Throws an error if there is whitespace in the string.\n     */\n    function throwIfWhitespace(str) {\n        // str.indexOf instead of regex because str.indexOf is faster performance wise.\n        if (str.indexOf(' ') >= 0) {\n            throw new Error('class has illegal whitespace characters');\n        }\n    }\n\n    /**\n     * Whether the current DOM interface appears to be real (i.e. not simulated).\n     *\n     * @return {boolean}\n     *         Will be `true` if the DOM appears to be real, `false` otherwise.\n     */\n    function isReal() {\n        // Both document and window will never be undefined thanks to `global`.\n        return document === window.document;\n    }\n\n    /**\n     * Determines, via duck typing, whether or not a value is a DOM element.\n     *\n     * @param  {*} value\n     *         The value to check.\n     *\n     * @return {boolean}\n     *         Will be `true` if the value is a DOM element, `false` otherwise.\n     */\n    function isEl(value) {\n        return isObject$1(value) && value.nodeType === 1;\n    }\n\n    /**\n     * Determines if the current DOM is embedded in an iframe.\n     *\n     * @return {boolean}\n     *         Will be `true` if the DOM is embedded in an iframe, `false`\n     *         otherwise.\n     */\n    function isInFrame() {\n        // We need a try/catch here because Safari will throw errors when attempting\n        // to get either `parent` or `self`\n        try {\n            return window.parent !== window.self;\n        } catch (x) {\n            return true;\n        }\n    }\n\n    /**\n     * Creates functions to query the DOM using a given method.\n     *\n     * @private\n     * @param   {string} method\n     *          The method to create the query with.\n     *\n     * @return  {Function}\n     *          The query method\n     */\n    function createQuerier(method) {\n        return function (selector, context) {\n            if (!isNonBlankString(selector)) {\n                return document[method](null);\n            }\n            if (isNonBlankString(context)) {\n                context = document.querySelector(context);\n            }\n            const ctx = isEl(context) ? context : document;\n            return ctx[method] && ctx[method](selector);\n        };\n    }\n\n    /**\n     * Creates an element and applies properties, attributes, and inserts content.\n     *\n     * @param  {string} [tagName='div']\n     *         Name of tag to be created.\n     *\n     * @param  {Object} [properties={}]\n     *         Element properties to be applied.\n     *\n     * @param  {Object} [attributes={}]\n     *         Element attributes to be applied.\n     *\n     * @param {ContentDescriptor} [content]\n     *        A content descriptor object.\n     *\n     * @return {Element}\n     *         The element that was created.\n     */\n    function createEl(tagName = 'div', properties = {}, attributes = {}, content) {\n        const el = document.createElement(tagName);\n        Object.getOwnPropertyNames(properties).forEach(function (propName) {\n            const val = properties[propName];\n\n            // Handle textContent since it's not supported everywhere and we have a\n            // method for it.\n            if (propName === 'textContent') {\n                textContent(el, val);\n            } else if (el[propName] !== val || propName === 'tabIndex') {\n                el[propName] = val;\n            }\n        });\n        Object.getOwnPropertyNames(attributes).forEach(function (attrName) {\n            el.setAttribute(attrName, attributes[attrName]);\n        });\n        if (content) {\n            appendContent(el, content);\n        }\n        return el;\n    }\n\n    /**\n     * Injects text into an element, replacing any existing contents entirely.\n     *\n     * @param  {Element} el\n     *         The element to add text content into\n     *\n     * @param  {string} text\n     *         The text content to add.\n     *\n     * @return {Element}\n     *         The element with added text content.\n     */\n    function textContent(el, text) {\n        if (typeof el.textContent === 'undefined') {\n            el.innerText = text;\n        } else {\n            el.textContent = text;\n        }\n        return el;\n    }\n\n    /**\n     * Insert an element as the first child node of another\n     *\n     * @param {Element} child\n     *        Element to insert\n     *\n     * @param {Element} parent\n     *        Element to insert child into\n     */\n    function prependTo(child, parent) {\n        if (parent.firstChild) {\n            parent.insertBefore(child, parent.firstChild);\n        } else {\n            parent.appendChild(child);\n        }\n    }\n\n    /**\n     * Check if an element has a class name.\n     *\n     * @param  {Element} element\n     *         Element to check\n     *\n     * @param  {string} classToCheck\n     *         Class name to check for\n     *\n     * @return {boolean}\n     *         Will be `true` if the element has a class, `false` otherwise.\n     *\n     * @throws {Error}\n     *         Throws an error if `classToCheck` has white space.\n     */\n    function hasClass(element, classToCheck) {\n        throwIfWhitespace(classToCheck);\n        return element.classList.contains(classToCheck);\n    }\n\n    /**\n     * Add a class name to an element.\n     *\n     * @param  {Element} element\n     *         Element to add class name to.\n     *\n     * @param  {...string} classesToAdd\n     *         One or more class name to add.\n     *\n     * @return {Element}\n     *         The DOM element with the added class name.\n     */\n    function addClass(element, ...classesToAdd) {\n        element.classList.add(...classesToAdd.reduce((prev, current) => prev.concat(current.split(/\\s+/)), []));\n        return element;\n    }\n\n    /**\n     * Remove a class name from an element.\n     *\n     * @param  {Element} element\n     *         Element to remove a class name from.\n     *\n     * @param  {...string} classesToRemove\n     *         One or more class name to remove.\n     *\n     * @return {Element}\n     *         The DOM element with class name removed.\n     */\n    function removeClass(element, ...classesToRemove) {\n        // Protect in case the player gets disposed\n        if (!element) {\n            log$1.warn(\"removeClass was called with an element that doesn't exist\");\n            return null;\n        }\n        element.classList.remove(...classesToRemove.reduce((prev, current) => prev.concat(current.split(/\\s+/)), []));\n        return element;\n    }\n\n    /**\n     * The callback definition for toggleClass.\n     *\n     * @callback module:dom~PredicateCallback\n     * @param    {Element} element\n     *           The DOM element of the Component.\n     *\n     * @param    {string} classToToggle\n     *           The `className` that wants to be toggled\n     *\n     * @return   {boolean|undefined}\n     *           If `true` is returned, the `classToToggle` will be added to the\n     *           `element`. If `false`, the `classToToggle` will be removed from\n     *           the `element`. If `undefined`, the callback will be ignored.\n     */\n\n    /**\n     * Adds or removes a class name to/from an element depending on an optional\n     * condition or the presence/absence of the class name.\n     *\n     * @param  {Element} element\n     *         The element to toggle a class name on.\n     *\n     * @param  {string} classToToggle\n     *         The class that should be toggled.\n     *\n     * @param  {boolean|module:dom~PredicateCallback} [predicate]\n     *         See the return value for {@link module:dom~PredicateCallback}\n     *\n     * @return {Element}\n     *         The element with a class that has been toggled.\n     */\n    function toggleClass(element, classToToggle, predicate) {\n        if (typeof predicate === 'function') {\n            predicate = predicate(element, classToToggle);\n        }\n        if (typeof predicate !== 'boolean') {\n            predicate = undefined;\n        }\n        classToToggle.split(/\\s+/).forEach(className => element.classList.toggle(className, predicate));\n        return element;\n    }\n\n    /**\n     * Apply attributes to an HTML element.\n     *\n     * @param {Element} el\n     *        Element to add attributes to.\n     *\n     * @param {Object} [attributes]\n     *        Attributes to be applied.\n     */\n    function setAttributes(el, attributes) {\n        Object.getOwnPropertyNames(attributes).forEach(function (attrName) {\n            const attrValue = attributes[attrName];\n            if (attrValue === null || typeof attrValue === 'undefined' || attrValue === false) {\n                el.removeAttribute(attrName);\n            } else {\n                el.setAttribute(attrName, attrValue === true ? '' : attrValue);\n            }\n        });\n    }\n\n    /**\n     * Get an element's attribute values, as defined on the HTML tag.\n     *\n     * Attributes are not the same as properties. They're defined on the tag\n     * or with setAttribute.\n     *\n     * @param  {Element} tag\n     *         Element from which to get tag attributes.\n     *\n     * @return {Object}\n     *         All attributes of the element. Boolean attributes will be `true` or\n     *         `false`, others will be strings.\n     */\n    function getAttributes(tag) {\n        const obj = {};\n\n        // known boolean attributes\n        // we can check for matching boolean properties, but not all browsers\n        // and not all tags know about these attributes, so, we still want to check them manually\n        const knownBooleans = ',' + 'autoplay,controls,playsinline,loop,muted,default,defaultMuted' + ',';\n        if (tag && tag.attributes && tag.attributes.length > 0) {\n            const attrs = tag.attributes;\n            for (let i = attrs.length - 1; i >= 0; i--) {\n                const attrName = attrs[i].name;\n                let attrVal = attrs[i].value;\n\n                // check for known booleans\n                // the matching element property will return a value for typeof\n                if (typeof tag[attrName] === 'boolean' || knownBooleans.indexOf(',' + attrName + ',') !== -1) {\n                    // the value of an included boolean attribute is typically an empty\n                    // string ('') which would equal false if we just check for a false value.\n                    // we also don't want support bad code like autoplay='false'\n                    attrVal = attrVal !== null ? true : false;\n                }\n                obj[attrName] = attrVal;\n            }\n        }\n        return obj;\n    }\n\n    /**\n     * Get the value of an element's attribute.\n     *\n     * @param {Element} el\n     *        A DOM element.\n     *\n     * @param {string} attribute\n     *        Attribute to get the value of.\n     *\n     * @return {string}\n     *         The value of the attribute.\n     */\n    function getAttribute(el, attribute) {\n        return el.getAttribute(attribute);\n    }\n\n    /**\n     * Set the value of an element's attribute.\n     *\n     * @param {Element} el\n     *        A DOM element.\n     *\n     * @param {string} attribute\n     *        Attribute to set.\n     *\n     * @param {string} value\n     *        Value to set the attribute to.\n     */\n    function setAttribute(el, attribute, value) {\n        el.setAttribute(attribute, value);\n    }\n\n    /**\n     * Remove an element's attribute.\n     *\n     * @param {Element} el\n     *        A DOM element.\n     *\n     * @param {string} attribute\n     *        Attribute to remove.\n     */\n    function removeAttribute(el, attribute) {\n        el.removeAttribute(attribute);\n    }\n\n    /**\n     * Attempt to block the ability to select text.\n     */\n    function blockTextSelection() {\n        document.body.focus();\n        document.onselectstart = function () {\n            return false;\n        };\n    }\n\n    /**\n     * Turn off text selection blocking.\n     */\n    function unblockTextSelection() {\n        document.onselectstart = function () {\n            return true;\n        };\n    }\n\n    /**\n     * Identical to the native `getBoundingClientRect` function, but ensures that\n     * the method is supported at all (it is in all browsers we claim to support)\n     * and that the element is in the DOM before continuing.\n     *\n     * This wrapper function also shims properties which are not provided by some\n     * older browsers (namely, IE8).\n     *\n     * Additionally, some browsers do not support adding properties to a\n     * `ClientRect`/`DOMRect` object; so, we shallow-copy it with the standard\n     * properties (except `x` and `y` which are not widely supported). This helps\n     * avoid implementations where keys are non-enumerable.\n     *\n     * @param  {Element} el\n     *         Element whose `ClientRect` we want to calculate.\n     *\n     * @return {Object|undefined}\n     *         Always returns a plain object - or `undefined` if it cannot.\n     */\n    function getBoundingClientRect(el) {\n        if (el && el.getBoundingClientRect && el.parentNode) {\n            const rect = el.getBoundingClientRect();\n            const result = {};\n            ['bottom', 'height', 'left', 'right', 'top', 'width'].forEach(k => {\n                if (rect[k] !== undefined) {\n                    result[k] = rect[k];\n                }\n            });\n            if (!result.height) {\n                result.height = parseFloat(computedStyle(el, 'height'));\n            }\n            if (!result.width) {\n                result.width = parseFloat(computedStyle(el, 'width'));\n            }\n            return result;\n        }\n    }\n\n    /**\n     * Represents the position of a DOM element on the page.\n     *\n     * @typedef  {Object} module:dom~Position\n     *\n     * @property {number} left\n     *           Pixels to the left.\n     *\n     * @property {number} top\n     *           Pixels from the top.\n     */\n\n    /**\n     * Get the position of an element in the DOM.\n     *\n     * Uses `getBoundingClientRect` technique from John Resig.\n     *\n     * @see http://ejohn.org/blog/getboundingclientrect-is-awesome/\n     *\n     * @param  {Element} el\n     *         Element from which to get offset.\n     *\n     * @return {module:dom~Position}\n     *         The position of the element that was passed in.\n     */\n    function findPosition(el) {\n        if (!el || el && !el.offsetParent) {\n            return {\n                left: 0,\n                top: 0,\n                width: 0,\n                height: 0\n            };\n        }\n        const width = el.offsetWidth;\n        const height = el.offsetHeight;\n        let left = 0;\n        let top = 0;\n        while (el.offsetParent && el !== document[FullscreenApi.fullscreenElement]) {\n            left += el.offsetLeft;\n            top += el.offsetTop;\n            el = el.offsetParent;\n        }\n        return {\n            left,\n            top,\n            width,\n            height\n        };\n    }\n\n    /**\n     * Represents x and y coordinates for a DOM element or mouse pointer.\n     *\n     * @typedef  {Object} module:dom~Coordinates\n     *\n     * @property {number} x\n     *           x coordinate in pixels\n     *\n     * @property {number} y\n     *           y coordinate in pixels\n     */\n\n    /**\n     * Get the pointer position within an element.\n     *\n     * The base on the coordinates are the bottom left of the element.\n     *\n     * @param  {Element} el\n     *         Element on which to get the pointer position on.\n     *\n     * @param  {Event} event\n     *         Event object.\n     *\n     * @return {module:dom~Coordinates}\n     *         A coordinates object corresponding to the mouse position.\n     *\n     */\n    function getPointerPosition(el, event) {\n        const translated = {\n            x: 0,\n            y: 0\n        };\n        if (IS_IOS) {\n            let item = el;\n            while (item && item.nodeName.toLowerCase() !== 'html') {\n                const transform = computedStyle(item, 'transform');\n                if (/^matrix/.test(transform)) {\n                    const values = transform.slice(7, -1).split(/,\\s/).map(Number);\n                    translated.x += values[4];\n                    translated.y += values[5];\n                } else if (/^matrix3d/.test(transform)) {\n                    const values = transform.slice(9, -1).split(/,\\s/).map(Number);\n                    translated.x += values[12];\n                    translated.y += values[13];\n                }\n                item = item.parentNode;\n            }\n        }\n        const position = {};\n        const boxTarget = findPosition(event.target);\n        const box = findPosition(el);\n        const boxW = box.width;\n        const boxH = box.height;\n        let offsetY = event.offsetY - (box.top - boxTarget.top);\n        let offsetX = event.offsetX - (box.left - boxTarget.left);\n        if (event.changedTouches) {\n            offsetX = event.changedTouches[0].pageX - box.left;\n            offsetY = event.changedTouches[0].pageY + box.top;\n            if (IS_IOS) {\n                offsetX -= translated.x;\n                offsetY -= translated.y;\n            }\n        }\n        position.y = 1 - Math.max(0, Math.min(1, offsetY / boxH));\n        position.x = Math.max(0, Math.min(1, offsetX / boxW));\n        return position;\n    }\n\n    /**\n     * Determines, via duck typing, whether or not a value is a text node.\n     *\n     * @param  {*} value\n     *         Check if this value is a text node.\n     *\n     * @return {boolean}\n     *         Will be `true` if the value is a text node, `false` otherwise.\n     */\n    function isTextNode$1(value) {\n        return isObject$1(value) && value.nodeType === 3;\n    }\n\n    /**\n     * Empties the contents of an element.\n     *\n     * @param  {Element} el\n     *         The element to empty children from\n     *\n     * @return {Element}\n     *         The element with no children\n     */\n    function emptyEl(el) {\n        while (el.firstChild) {\n            el.removeChild(el.firstChild);\n        }\n        return el;\n    }\n\n    /**\n     * This is a mixed value that describes content to be injected into the DOM\n     * via some method. It can be of the following types:\n     *\n     * Type       | Description\n     * -----------|-------------\n     * `string`   | The value will be normalized into a text node.\n     * `Element`  | The value will be accepted as-is.\n     * `Text`     | A TextNode. The value will be accepted as-is.\n     * `Array`    | A one-dimensional array of strings, elements, text nodes, or functions. These functions should return a string, element, or text node (any other return value, like an array, will be ignored).\n     * `Function` | A function, which is expected to return a string, element, text node, or array - any of the other possible values described above. This means that a content descriptor could be a function that returns an array of functions, but those second-level functions must return strings, elements, or text nodes.\n     *\n     * @typedef {string|Element|Text|Array|Function} ContentDescriptor\n     */\n\n    /**\n     * Normalizes content for eventual insertion into the DOM.\n     *\n     * This allows a wide range of content definition methods, but helps protect\n     * from falling into the trap of simply writing to `innerHTML`, which could\n     * be an XSS concern.\n     *\n     * The content for an element can be passed in multiple types and\n     * combinations, whose behavior is as follows:\n     *\n     * @param {ContentDescriptor} content\n     *        A content descriptor value.\n     *\n     * @return {Array}\n     *         All of the content that was passed in, normalized to an array of\n     *         elements or text nodes.\n     */\n    function normalizeContent(content) {\n        // First, invoke content if it is a function. If it produces an array,\n        // that needs to happen before normalization.\n        if (typeof content === 'function') {\n            content = content();\n        }\n\n        // Next up, normalize to an array, so one or many items can be normalized,\n        // filtered, and returned.\n        return (Array.isArray(content) ? content : [content]).map(value => {\n            // First, invoke value if it is a function to produce a new value,\n            // which will be subsequently normalized to a Node of some kind.\n            if (typeof value === 'function') {\n                value = value();\n            }\n            if (isEl(value) || isTextNode$1(value)) {\n                return value;\n            }\n            if (typeof value === 'string' && /\\S/.test(value)) {\n                return document.createTextNode(value);\n            }\n        }).filter(value => value);\n    }\n\n    /**\n     * Normalizes and appends content to an element.\n     *\n     * @param  {Element} el\n     *         Element to append normalized content to.\n     *\n     * @param {ContentDescriptor} content\n     *        A content descriptor value.\n     *\n     * @return {Element}\n     *         The element with appended normalized content.\n     */\n    function appendContent(el, content) {\n        normalizeContent(content).forEach(node => el.appendChild(node));\n        return el;\n    }\n\n    /**\n     * Normalizes and inserts content into an element; this is identical to\n     * `appendContent()`, except it empties the element first.\n     *\n     * @param {Element} el\n     *        Element to insert normalized content into.\n     *\n     * @param {ContentDescriptor} content\n     *        A content descriptor value.\n     *\n     * @return {Element}\n     *         The element with inserted normalized content.\n     */\n    function insertContent(el, content) {\n        return appendContent(emptyEl(el), content);\n    }\n\n    /**\n     * Check if an event was a single left click.\n     *\n     * @param  {Event} event\n     *         Event object.\n     *\n     * @return {boolean}\n     *         Will be `true` if a single left click, `false` otherwise.\n     */\n    function isSingleLeftClick(event) {\n        // Note: if you create something draggable, be sure to\n        // call it on both `mousedown` and `mousemove` event,\n        // otherwise `mousedown` should be enough for a button\n\n        if (event.button === undefined && event.buttons === undefined) {\n            // Why do we need `buttons` ?\n            // Because, middle mouse sometimes have this:\n            // e.button === 0 and e.buttons === 4\n            // Furthermore, we want to prevent combination click, something like\n            // HOLD middlemouse then left click, that would be\n            // e.button === 0, e.buttons === 5\n            // just `button` is not gonna work\n\n            // Alright, then what this block does ?\n            // this is for chrome `simulate mobile devices`\n            // I want to support this as well\n\n            return true;\n        }\n        if (event.button === 0 && event.buttons === undefined) {\n            // Touch screen, sometimes on some specific device, `buttons`\n            // doesn't have anything (safari on ios, blackberry...)\n\n            return true;\n        }\n\n        // `mouseup` event on a single left click has\n        // `button` and `buttons` equal to 0\n        if (event.type === 'mouseup' && event.button === 0 && event.buttons === 0) {\n            return true;\n        }\n        if (event.button !== 0 || event.buttons !== 1) {\n            // This is the reason we have those if else block above\n            // if any special case we can catch and let it slide\n            // we do it above, when get to here, this definitely\n            // is-not-left-click\n\n            return false;\n        }\n        return true;\n    }\n\n    /**\n     * Finds a single DOM element matching `selector` within the optional\n     * `context` of another DOM element (defaulting to `document`).\n     *\n     * @param  {string} selector\n     *         A valid CSS selector, which will be passed to `querySelector`.\n     *\n     * @param  {Element|String} [context=document]\n     *         A DOM element within which to query. Can also be a selector\n     *         string in which case the first matching element will be used\n     *         as context. If missing (or no element matches selector), falls\n     *         back to `document`.\n     *\n     * @return {Element|null}\n     *         The element that was found or null.\n     */\n    const $ = createQuerier('querySelector');\n\n    /**\n     * Finds a all DOM elements matching `selector` within the optional\n     * `context` of another DOM element (defaulting to `document`).\n     *\n     * @param  {string} selector\n     *         A valid CSS selector, which will be passed to `querySelectorAll`.\n     *\n     * @param  {Element|String} [context=document]\n     *         A DOM element within which to query. Can also be a selector\n     *         string in which case the first matching element will be used\n     *         as context. If missing (or no element matches selector), falls\n     *         back to `document`.\n     *\n     * @return {NodeList}\n     *         A element list of elements that were found. Will be empty if none\n     *         were found.\n     *\n     */\n    const $$ = createQuerier('querySelectorAll');\n\n    /**\n     * A safe getComputedStyle.\n     *\n     * This is needed because in Firefox, if the player is loaded in an iframe with\n     * `display:none`, then `getComputedStyle` returns `null`, so, we do a\n     * null-check to make sure that the player doesn't break in these cases.\n     *\n     * @param    {Element} el\n     *           The element you want the computed style of\n     *\n     * @param    {string} prop\n     *           The property name you want\n     *\n     * @see      https://bugzilla.mozilla.org/show_bug.cgi?id=548397\n     */\n    function computedStyle(el, prop) {\n        if (!el || !prop) {\n            return '';\n        }\n        if (typeof window.getComputedStyle === 'function') {\n            let computedStyleValue;\n            try {\n                computedStyleValue = window.getComputedStyle(el);\n            } catch (e) {\n                return '';\n            }\n            return computedStyleValue ? computedStyleValue.getPropertyValue(prop) || computedStyleValue[prop] : '';\n        }\n        return '';\n    }\n\n    var Dom = /*#__PURE__*/Object.freeze({\n        __proto__: null,\n        isReal: isReal,\n        isEl: isEl,\n        isInFrame: isInFrame,\n        createEl: createEl,\n        textContent: textContent,\n        prependTo: prependTo,\n        hasClass: hasClass,\n        addClass: addClass,\n        removeClass: removeClass,\n        toggleClass: toggleClass,\n        setAttributes: setAttributes,\n        getAttributes: getAttributes,\n        getAttribute: getAttribute,\n        setAttribute: setAttribute,\n        removeAttribute: removeAttribute,\n        blockTextSelection: blockTextSelection,\n        unblockTextSelection: unblockTextSelection,\n        getBoundingClientRect: getBoundingClientRect,\n        findPosition: findPosition,\n        getPointerPosition: getPointerPosition,\n        isTextNode: isTextNode$1,\n        emptyEl: emptyEl,\n        normalizeContent: normalizeContent,\n        appendContent: appendContent,\n        insertContent: insertContent,\n        isSingleLeftClick: isSingleLeftClick,\n        $: $,\n        $$: $$,\n        computedStyle: computedStyle\n    });\n\n    /**\n     * @file setup.js - Functions for setting up a player without\n     * user interaction based on the data-setup `attribute` of the video tag.\n     *\n     * @module setup\n     */\n    let _windowLoaded = false;\n    let videojs$1;\n\n    /**\n     * Set up any tags that have a data-setup `attribute` when the player is started.\n     */\n    const autoSetup = function () {\n        if (videojs$1.options.autoSetup === false) {\n            return;\n        }\n        const vids = Array.prototype.slice.call(document.getElementsByTagName('video'));\n        const audios = Array.prototype.slice.call(document.getElementsByTagName('audio'));\n        const divs = Array.prototype.slice.call(document.getElementsByTagName('video-js'));\n        const mediaEls = vids.concat(audios, divs);\n\n        // Check if any media elements exist\n        if (mediaEls && mediaEls.length > 0) {\n            for (let i = 0, e = mediaEls.length; i < e; i++) {\n                const mediaEl = mediaEls[i];\n\n                // Check if element exists, has getAttribute func.\n                if (mediaEl && mediaEl.getAttribute) {\n                    // Make sure this player hasn't already been set up.\n                    if (mediaEl.player === undefined) {\n                        const options = mediaEl.getAttribute('data-setup');\n\n                        // Check if data-setup attr exists.\n                        // We only auto-setup if they've added the data-setup attr.\n                        if (options !== null) {\n                            // Create new video.js instance.\n                            videojs$1(mediaEl);\n                        }\n                    }\n\n                    // If getAttribute isn't defined, we need to wait for the DOM.\n                } else {\n                    autoSetupTimeout(1);\n                    break;\n                }\n            }\n\n            // No videos were found, so keep looping unless page is finished loading.\n        } else if (!_windowLoaded) {\n            autoSetupTimeout(1);\n        }\n    };\n\n    /**\n     * Wait until the page is loaded before running autoSetup. This will be called in\n     * autoSetup if `hasLoaded` returns false.\n     *\n     * @param {number} wait\n     *        How long to wait in ms\n     *\n     * @param {module:videojs} [vjs]\n     *        The videojs library function\n     */\n    function autoSetupTimeout(wait, vjs) {\n        // Protect against breakage in non-browser environments\n        if (!isReal()) {\n            return;\n        }\n        if (vjs) {\n            videojs$1 = vjs;\n        }\n        window.setTimeout(autoSetup, wait);\n    }\n\n    /**\n     * Used to set the internal tracking of window loaded state to true.\n     *\n     * @private\n     */\n    function setWindowLoaded() {\n        _windowLoaded = true;\n        window.removeEventListener('load', setWindowLoaded);\n    }\n    if (isReal()) {\n        if (document.readyState === 'complete') {\n            setWindowLoaded();\n        } else {\n            /**\n             * Listen for the load event on window, and set _windowLoaded to true.\n             *\n             * We use a standard event listener here to avoid incrementing the GUID\n             * before any players are created.\n             *\n             * @listens load\n             */\n            window.addEventListener('load', setWindowLoaded);\n        }\n    }\n\n    /**\n     * @file stylesheet.js\n     * @module stylesheet\n     */\n\n    /**\n     * Create a DOM style element given a className for it.\n     *\n     * @param {string} className\n     *        The className to add to the created style element.\n     *\n     * @return {Element}\n     *         The element that was created.\n     */\n    const createStyleElement = function (className) {\n        const style = document.createElement('style');\n        style.className = className;\n        return style;\n    };\n\n    /**\n     * Add text to a DOM element.\n     *\n     * @param {Element} el\n     *        The Element to add text content to.\n     *\n     * @param {string} content\n     *        The text to add to the element.\n     */\n    const setTextContent = function (el, content) {\n        if (el.styleSheet) {\n            el.styleSheet.cssText = content;\n        } else {\n            el.textContent = content;\n        }\n    };\n\n    /**\n     * @file dom-data.js\n     * @module dom-data\n     */\n\n    /**\n     * Element Data Store.\n     *\n     * Allows for binding data to an element without putting it directly on the\n     * element. Ex. Event listeners are stored here.\n     * (also from jsninja.com, slightly modified and updated for closure compiler)\n     *\n     * @type {Object}\n     * @private\n     */\n    var DomData = new WeakMap();\n\n    /**\n     * @file guid.js\n     * @module guid\n     */\n\n        // Default value for GUIDs. This allows us to reset the GUID counter in tests.\n        //\n        // The initial GUID is 3 because some users have come to rely on the first\n        // default player ID ending up as `vjs_video_3`.\n        //\n        // See: https://github.com/videojs/video.js/pull/6216\n    const _initialGuid = 3;\n\n    /**\n     * Unique ID for an element or function\n     *\n     * @type {Number}\n     */\n    let _guid = _initialGuid;\n\n    /**\n     * Get a unique auto-incrementing ID by number that has not been returned before.\n     *\n     * @return {number}\n     *         A new unique ID.\n     */\n    function newGUID() {\n        return _guid++;\n    }\n\n    /**\n     * @file events.js. An Event System (John Resig - Secrets of a JS Ninja http://jsninja.com/)\n     * (Original book version wasn't completely usable, so fixed some things and made Closure Compiler compatible)\n     * This should work very similarly to jQuery's events, however it's based off the book version which isn't as\n     * robust as jquery's, so there's probably some differences.\n     *\n     * @file events.js\n     * @module events\n     */\n\n    /**\n     * Clean up the listener cache and dispatchers\n     *\n     * @param {Element|Object} elem\n     *        Element to clean up\n     *\n     * @param {string} type\n     *        Type of event to clean up\n     */\n    function _cleanUpEvents(elem, type) {\n        if (!DomData.has(elem)) {\n            return;\n        }\n        const data = DomData.get(elem);\n\n        // Remove the events of a particular type if there are none left\n        if (data.handlers[type].length === 0) {\n            delete data.handlers[type];\n            // data.handlers[type] = null;\n            // Setting to null was causing an error with data.handlers\n\n            // Remove the meta-handler from the element\n            if (elem.removeEventListener) {\n                elem.removeEventListener(type, data.dispatcher, false);\n            } else if (elem.detachEvent) {\n                elem.detachEvent('on' + type, data.dispatcher);\n            }\n        }\n\n        // Remove the events object if there are no types left\n        if (Object.getOwnPropertyNames(data.handlers).length <= 0) {\n            delete data.handlers;\n            delete data.dispatcher;\n            delete data.disabled;\n        }\n\n        // Finally remove the element data if there is no data left\n        if (Object.getOwnPropertyNames(data).length === 0) {\n            DomData.delete(elem);\n        }\n    }\n\n    /**\n     * Loops through an array of event types and calls the requested method for each type.\n     *\n     * @param {Function} fn\n     *        The event method we want to use.\n     *\n     * @param {Element|Object} elem\n     *        Element or object to bind listeners to\n     *\n     * @param {string} type\n     *        Type of event to bind to.\n     *\n     * @param {Function} callback\n     *        Event listener.\n     */\n    function _handleMultipleEvents(fn, elem, types, callback) {\n        types.forEach(function (type) {\n            // Call the event method for each one of the types\n            fn(elem, type, callback);\n        });\n    }\n\n    /**\n     * Fix a native event to have standard property values\n     *\n     * @param {Object} event\n     *        Event object to fix.\n     *\n     * @return {Object}\n     *         Fixed event object.\n     */\n    function fixEvent(event) {\n        if (event.fixed_) {\n            return event;\n        }\n        function returnTrue() {\n            return true;\n        }\n        function returnFalse() {\n            return false;\n        }\n\n        // Test if fixing up is needed\n        // Used to check if !event.stopPropagation instead of isPropagationStopped\n        // But native events return true for stopPropagation, but don't have\n        // other expected methods like isPropagationStopped. Seems to be a problem\n        // with the Javascript Ninja code. So we're just overriding all events now.\n        if (!event || !event.isPropagationStopped || !event.isImmediatePropagationStopped) {\n            const old = event || window.event;\n            event = {};\n            // Clone the old object so that we can modify the values event = {};\n            // IE8 Doesn't like when you mess with native event properties\n            // Firefox returns false for event.hasOwnProperty('type') and other props\n            //  which makes copying more difficult.\n            // TODO: Probably best to create a whitelist of event props\n            for (const key in old) {\n                // Safari 6.0.3 warns you if you try to copy deprecated layerX/Y\n                // Chrome warns you if you try to copy deprecated keyboardEvent.keyLocation\n                // and webkitMovementX/Y\n                // Lighthouse complains if Event.path is copied\n                if (key !== 'layerX' && key !== 'layerY' && key !== 'keyLocation' && key !== 'webkitMovementX' && key !== 'webkitMovementY' && key !== 'path') {\n                    // Chrome 32+ warns if you try to copy deprecated returnValue, but\n                    // we still want to if preventDefault isn't supported (IE8).\n                    if (!(key === 'returnValue' && old.preventDefault)) {\n                        event[key] = old[key];\n                    }\n                }\n            }\n\n            // The event occurred on this element\n            if (!event.target) {\n                event.target = event.srcElement || document;\n            }\n\n            // Handle which other element the event is related to\n            if (!event.relatedTarget) {\n                event.relatedTarget = event.fromElement === event.target ? event.toElement : event.fromElement;\n            }\n\n            // Stop the default browser action\n            event.preventDefault = function () {\n                if (old.preventDefault) {\n                    old.preventDefault();\n                }\n                event.returnValue = false;\n                old.returnValue = false;\n                event.defaultPrevented = true;\n            };\n            event.defaultPrevented = false;\n\n            // Stop the event from bubbling\n            event.stopPropagation = function () {\n                if (old.stopPropagation) {\n                    old.stopPropagation();\n                }\n                event.cancelBubble = true;\n                old.cancelBubble = true;\n                event.isPropagationStopped = returnTrue;\n            };\n            event.isPropagationStopped = returnFalse;\n\n            // Stop the event from bubbling and executing other handlers\n            event.stopImmediatePropagation = function () {\n                if (old.stopImmediatePropagation) {\n                    old.stopImmediatePropagation();\n                }\n                event.isImmediatePropagationStopped = returnTrue;\n                event.stopPropagation();\n            };\n            event.isImmediatePropagationStopped = returnFalse;\n\n            // Handle mouse position\n            if (event.clientX !== null && event.clientX !== undefined) {\n                const doc = document.documentElement;\n                const body = document.body;\n                event.pageX = event.clientX + (doc && doc.scrollLeft || body && body.scrollLeft || 0) - (doc && doc.clientLeft || body && body.clientLeft || 0);\n                event.pageY = event.clientY + (doc && doc.scrollTop || body && body.scrollTop || 0) - (doc && doc.clientTop || body && body.clientTop || 0);\n            }\n\n            // Handle key presses\n            event.which = event.charCode || event.keyCode;\n\n            // Fix button for mouse clicks:\n            // 0 == left; 1 == middle; 2 == right\n            if (event.button !== null && event.button !== undefined) {\n                // The following is disabled because it does not pass videojs-standard\n                // and... yikes.\n                /* eslint-disable */\n                event.button = event.button & 1 ? 0 : event.button & 4 ? 1 : event.button & 2 ? 2 : 0;\n                /* eslint-enable */\n            }\n        }\n\n        event.fixed_ = true;\n        // Returns fixed-up instance\n        return event;\n    }\n\n    /**\n     * Whether passive event listeners are supported\n     */\n    let _supportsPassive;\n    const supportsPassive = function () {\n        if (typeof _supportsPassive !== 'boolean') {\n            _supportsPassive = false;\n            try {\n                const opts = Object.defineProperty({}, 'passive', {\n                    get() {\n                        _supportsPassive = true;\n                    }\n                });\n                window.addEventListener('test', null, opts);\n                window.removeEventListener('test', null, opts);\n            } catch (e) {\n                // disregard\n            }\n        }\n        return _supportsPassive;\n    };\n\n    /**\n     * Touch events Chrome expects to be passive\n     */\n    const passiveEvents = ['touchstart', 'touchmove'];\n\n    /**\n     * Add an event listener to element\n     * It stores the handler function in a separate cache object\n     * and adds a generic handler to the element's event,\n     * along with a unique id (guid) to the element.\n     *\n     * @param {Element|Object} elem\n     *        Element or object to bind listeners to\n     *\n     * @param {string|string[]} type\n     *        Type of event to bind to.\n     *\n     * @param {Function} fn\n     *        Event listener.\n     */\n    function on(elem, type, fn) {\n        if (Array.isArray(type)) {\n            return _handleMultipleEvents(on, elem, type, fn);\n        }\n        if (!DomData.has(elem)) {\n            DomData.set(elem, {});\n        }\n        const data = DomData.get(elem);\n\n        // We need a place to store all our handler data\n        if (!data.handlers) {\n            data.handlers = {};\n        }\n        if (!data.handlers[type]) {\n            data.handlers[type] = [];\n        }\n        if (!fn.guid) {\n            fn.guid = newGUID();\n        }\n        data.handlers[type].push(fn);\n        if (!data.dispatcher) {\n            data.disabled = false;\n            data.dispatcher = function (event, hash) {\n                if (data.disabled) {\n                    return;\n                }\n                event = fixEvent(event);\n                const handlers = data.handlers[event.type];\n                if (handlers) {\n                    // Copy handlers so if handlers are added/removed during the process it doesn't throw everything off.\n                    const handlersCopy = handlers.slice(0);\n                    for (let m = 0, n = handlersCopy.length; m < n; m++) {\n                        if (event.isImmediatePropagationStopped()) {\n                            break;\n                        } else {\n                            try {\n                                handlersCopy[m].call(elem, event, hash);\n                            } catch (e) {\n                                log$1.error(e);\n                            }\n                        }\n                    }\n                }\n            };\n        }\n        if (data.handlers[type].length === 1) {\n            if (elem.addEventListener) {\n                let options = false;\n                if (supportsPassive() && passiveEvents.indexOf(type) > -1) {\n                    options = {\n                        passive: true\n                    };\n                }\n                elem.addEventListener(type, data.dispatcher, options);\n            } else if (elem.attachEvent) {\n                elem.attachEvent('on' + type, data.dispatcher);\n            }\n        }\n    }\n\n    /**\n     * Removes event listeners from an element\n     *\n     * @param {Element|Object} elem\n     *        Object to remove listeners from.\n     *\n     * @param {string|string[]} [type]\n     *        Type of listener to remove. Don't include to remove all events from element.\n     *\n     * @param {Function} [fn]\n     *        Specific listener to remove. Don't include to remove listeners for an event\n     *        type.\n     */\n    function off(elem, type, fn) {\n        // Don't want to add a cache object through getElData if not needed\n        if (!DomData.has(elem)) {\n            return;\n        }\n        const data = DomData.get(elem);\n\n        // If no events exist, nothing to unbind\n        if (!data.handlers) {\n            return;\n        }\n        if (Array.isArray(type)) {\n            return _handleMultipleEvents(off, elem, type, fn);\n        }\n\n        // Utility function\n        const removeType = function (el, t) {\n            data.handlers[t] = [];\n            _cleanUpEvents(el, t);\n        };\n\n        // Are we removing all bound events?\n        if (type === undefined) {\n            for (const t in data.handlers) {\n                if (Object.prototype.hasOwnProperty.call(data.handlers || {}, t)) {\n                    removeType(elem, t);\n                }\n            }\n            return;\n        }\n        const handlers = data.handlers[type];\n\n        // If no handlers exist, nothing to unbind\n        if (!handlers) {\n            return;\n        }\n\n        // If no listener was provided, remove all listeners for type\n        if (!fn) {\n            removeType(elem, type);\n            return;\n        }\n\n        // We're only removing a single handler\n        if (fn.guid) {\n            for (let n = 0; n < handlers.length; n++) {\n                if (handlers[n].guid === fn.guid) {\n                    handlers.splice(n--, 1);\n                }\n            }\n        }\n        _cleanUpEvents(elem, type);\n    }\n\n    /**\n     * Trigger an event for an element\n     *\n     * @param {Element|Object} elem\n     *        Element to trigger an event on\n     *\n     * @param {EventTarget~Event|string} event\n     *        A string (the type) or an event object with a type attribute\n     *\n     * @param {Object} [hash]\n     *        data hash to pass along with the event\n     *\n     * @return {boolean|undefined}\n     *         Returns the opposite of `defaultPrevented` if default was\n     *         prevented. Otherwise, returns `undefined`\n     */\n    function trigger(elem, event, hash) {\n        // Fetches element data and a reference to the parent (for bubbling).\n        // Don't want to add a data object to cache for every parent,\n        // so checking hasElData first.\n        const elemData = DomData.has(elem) ? DomData.get(elem) : {};\n        const parent = elem.parentNode || elem.ownerDocument;\n        // type = event.type || event,\n        // handler;\n\n        // If an event name was passed as a string, creates an event out of it\n        if (typeof event === 'string') {\n            event = {\n                type: event,\n                target: elem\n            };\n        } else if (!event.target) {\n            event.target = elem;\n        }\n\n        // Normalizes the event properties.\n        event = fixEvent(event);\n\n        // If the passed element has a dispatcher, executes the established handlers.\n        if (elemData.dispatcher) {\n            elemData.dispatcher.call(elem, event, hash);\n        }\n\n        // Unless explicitly stopped or the event does not bubble (e.g. media events)\n        // recursively calls this function to bubble the event up the DOM.\n        if (parent && !event.isPropagationStopped() && event.bubbles === true) {\n            trigger.call(null, parent, event, hash);\n\n            // If at the top of the DOM, triggers the default action unless disabled.\n        } else if (!parent && !event.defaultPrevented && event.target && event.target[event.type]) {\n            if (!DomData.has(event.target)) {\n                DomData.set(event.target, {});\n            }\n            const targetData = DomData.get(event.target);\n\n            // Checks if the target has a default action for this event.\n            if (event.target[event.type]) {\n                // Temporarily disables event dispatching on the target as we have already executed the handler.\n                targetData.disabled = true;\n                // Executes the default action.\n                if (typeof event.target[event.type] === 'function') {\n                    event.target[event.type]();\n                }\n                // Re-enables event dispatching.\n                targetData.disabled = false;\n            }\n        }\n\n        // Inform the triggerer if the default was prevented by returning false\n        return !event.defaultPrevented;\n    }\n\n    /**\n     * Trigger a listener only once for an event.\n     *\n     * @param {Element|Object} elem\n     *        Element or object to bind to.\n     *\n     * @param {string|string[]} type\n     *        Name/type of event\n     *\n     * @param {Event~EventListener} fn\n     *        Event listener function\n     */\n    function one(elem, type, fn) {\n        if (Array.isArray(type)) {\n            return _handleMultipleEvents(one, elem, type, fn);\n        }\n        const func = function () {\n            off(elem, type, func);\n            fn.apply(this, arguments);\n        };\n\n        // copy the guid to the new function so it can removed using the original function's ID\n        func.guid = fn.guid = fn.guid || newGUID();\n        on(elem, type, func);\n    }\n\n    /**\n     * Trigger a listener only once and then turn if off for all\n     * configured events\n     *\n     * @param {Element|Object} elem\n     *        Element or object to bind to.\n     *\n     * @param {string|string[]} type\n     *        Name/type of event\n     *\n     * @param {Event~EventListener} fn\n     *        Event listener function\n     */\n    function any(elem, type, fn) {\n        const func = function () {\n            off(elem, type, func);\n            fn.apply(this, arguments);\n        };\n\n        // copy the guid to the new function so it can removed using the original function's ID\n        func.guid = fn.guid = fn.guid || newGUID();\n\n        // multiple ons, but one off for everything\n        on(elem, type, func);\n    }\n\n    var Events = /*#__PURE__*/Object.freeze({\n        __proto__: null,\n        fixEvent: fixEvent,\n        on: on,\n        off: off,\n        trigger: trigger,\n        one: one,\n        any: any\n    });\n\n    /**\n     * @file fn.js\n     * @module fn\n     */\n    const UPDATE_REFRESH_INTERVAL = 30;\n\n    /**\n     * A private, internal-only function for changing the context of a function.\n     *\n     * It also stores a unique id on the function so it can be easily removed from\n     * events.\n     *\n     * @private\n     * @function\n     * @param    {*} context\n     *           The object to bind as scope.\n     *\n     * @param    {Function} fn\n     *           The function to be bound to a scope.\n     *\n     * @param    {number} [uid]\n     *           An optional unique ID for the function to be set\n     *\n     * @return   {Function}\n     *           The new function that will be bound into the context given\n     */\n    const bind_ = function (context, fn, uid) {\n        // Make sure the function has a unique ID\n        if (!fn.guid) {\n            fn.guid = newGUID();\n        }\n\n        // Create the new function that changes the context\n        const bound = fn.bind(context);\n\n        // Allow for the ability to individualize this function\n        // Needed in the case where multiple objects might share the same prototype\n        // IF both items add an event listener with the same function, then you try to remove just one\n        // it will remove both because they both have the same guid.\n        // when using this, you need to use the bind method when you remove the listener as well.\n        // currently used in text tracks\n        bound.guid = uid ? uid + '_' + fn.guid : fn.guid;\n        return bound;\n    };\n\n    /**\n     * Wraps the given function, `fn`, with a new function that only invokes `fn`\n     * at most once per every `wait` milliseconds.\n     *\n     * @function\n     * @param    {Function} fn\n     *           The function to be throttled.\n     *\n     * @param    {number}   wait\n     *           The number of milliseconds by which to throttle.\n     *\n     * @return   {Function}\n     */\n    const throttle = function (fn, wait) {\n        let last = window.performance.now();\n        const throttled = function (...args) {\n            const now = window.performance.now();\n            if (now - last >= wait) {\n                fn(...args);\n                last = now;\n            }\n        };\n        return throttled;\n    };\n\n    /**\n     * Creates a debounced function that delays invoking `func` until after `wait`\n     * milliseconds have elapsed since the last time the debounced function was\n     * invoked.\n     *\n     * Inspired by lodash and underscore implementations.\n     *\n     * @function\n     * @param    {Function} func\n     *           The function to wrap with debounce behavior.\n     *\n     * @param    {number} wait\n     *           The number of milliseconds to wait after the last invocation.\n     *\n     * @param    {boolean} [immediate]\n     *           Whether or not to invoke the function immediately upon creation.\n     *\n     * @param    {Object} [context=window]\n     *           The \"context\" in which the debounced function should debounce. For\n     *           example, if this function should be tied to a Video.js player,\n     *           the player can be passed here. Alternatively, defaults to the\n     *           global `window` object.\n     *\n     * @return   {Function}\n     *           A debounced function.\n     */\n    const debounce = function (func, wait, immediate, context = window) {\n        let timeout;\n        const cancel = () => {\n            context.clearTimeout(timeout);\n            timeout = null;\n        };\n\n        /* eslint-disable consistent-this */\n        const debounced = function () {\n            const self = this;\n            const args = arguments;\n            let later = function () {\n                timeout = null;\n                later = null;\n                if (!immediate) {\n                    func.apply(self, args);\n                }\n            };\n            if (!timeout && immediate) {\n                func.apply(self, args);\n            }\n            context.clearTimeout(timeout);\n            timeout = context.setTimeout(later, wait);\n        };\n        /* eslint-enable consistent-this */\n\n        debounced.cancel = cancel;\n        return debounced;\n    };\n\n    var Fn = /*#__PURE__*/Object.freeze({\n        __proto__: null,\n        UPDATE_REFRESH_INTERVAL: UPDATE_REFRESH_INTERVAL,\n        bind_: bind_,\n        throttle: throttle,\n        debounce: debounce\n    });\n\n    /**\n     * @file src/js/event-target.js\n     */\n    let EVENT_MAP;\n\n    /**\n     * `EventTarget` is a class that can have the same API as the DOM `EventTarget`. It\n     * adds shorthand functions that wrap around lengthy functions. For example:\n     * the `on` function is a wrapper around `addEventListener`.\n     *\n     * @see [EventTarget Spec]{@link https://www.w3.org/TR/DOM-Level-2-Events/events.html#Events-EventTarget}\n     * @class EventTarget\n     */\n    class EventTarget$2 {\n        /**\n         * Adds an `event listener` to an instance of an `EventTarget`. An `event listener` is a\n         * function that will get called when an event with a certain name gets triggered.\n         *\n         * @param {string|string[]} type\n         *        An event name or an array of event names.\n         *\n         * @param {Function} fn\n         *        The function to call with `EventTarget`s\n         */\n        on(type, fn) {\n            // Remove the addEventListener alias before calling Events.on\n            // so we don't get into an infinite type loop\n            const ael = this.addEventListener;\n            this.addEventListener = () => {};\n            on(this, type, fn);\n            this.addEventListener = ael;\n        }\n        /**\n         * Removes an `event listener` for a specific event from an instance of `EventTarget`.\n         * This makes it so that the `event listener` will no longer get called when the\n         * named event happens.\n         *\n         * @param {string|string[]} type\n         *        An event name or an array of event names.\n         *\n         * @param {Function} fn\n         *        The function to remove.\n         */\n        off(type, fn) {\n            off(this, type, fn);\n        }\n        /**\n         * This function will add an `event listener` that gets triggered only once. After the\n         * first trigger it will get removed. This is like adding an `event listener`\n         * with {@link EventTarget#on} that calls {@link EventTarget#off} on itself.\n         *\n         * @param {string|string[]} type\n         *        An event name or an array of event names.\n         *\n         * @param {Function} fn\n         *        The function to be called once for each event name.\n         */\n        one(type, fn) {\n            // Remove the addEventListener aliasing Events.on\n            // so we don't get into an infinite type loop\n            const ael = this.addEventListener;\n            this.addEventListener = () => {};\n            one(this, type, fn);\n            this.addEventListener = ael;\n        }\n        /**\n         * This function will add an `event listener` that gets triggered only once and is\n         * removed from all events. This is like adding an array of `event listener`s\n         * with {@link EventTarget#on} that calls {@link EventTarget#off} on all events the\n         * first time it is triggered.\n         *\n         * @param {string|string[]} type\n         *        An event name or an array of event names.\n         *\n         * @param {Function} fn\n         *        The function to be called once for each event name.\n         */\n        any(type, fn) {\n            // Remove the addEventListener aliasing Events.on\n            // so we don't get into an infinite type loop\n            const ael = this.addEventListener;\n            this.addEventListener = () => {};\n            any(this, type, fn);\n            this.addEventListener = ael;\n        }\n        /**\n         * This function causes an event to happen. This will then cause any `event listeners`\n         * that are waiting for that event, to get called. If there are no `event listeners`\n         * for an event then nothing will happen.\n         *\n         * If the name of the `Event` that is being triggered is in `EventTarget.allowedEvents_`.\n         * Trigger will also call the `on` + `uppercaseEventName` function.\n         *\n         * Example:\n         * 'click' is in `EventTarget.allowedEvents_`, so, trigger will attempt to call\n         * `onClick` if it exists.\n         *\n         * @param {string|EventTarget~Event|Object} event\n         *        The name of the event, an `Event`, or an object with a key of type set to\n         *        an event name.\n         */\n        trigger(event) {\n            const type = event.type || event;\n\n            // deprecation\n            // In a future version we should default target to `this`\n            // similar to how we default the target to `elem` in\n            // `Events.trigger`. Right now the default `target` will be\n            // `document` due to the `Event.fixEvent` call.\n            if (typeof event === 'string') {\n                event = {\n                    type\n                };\n            }\n            event = fixEvent(event);\n            if (this.allowedEvents_[type] && this['on' + type]) {\n                this['on' + type](event);\n            }\n            trigger(this, event);\n        }\n        queueTrigger(event) {\n            // only set up EVENT_MAP if it'll be used\n            if (!EVENT_MAP) {\n                EVENT_MAP = new Map();\n            }\n            const type = event.type || event;\n            let map = EVENT_MAP.get(this);\n            if (!map) {\n                map = new Map();\n                EVENT_MAP.set(this, map);\n            }\n            const oldTimeout = map.get(type);\n            map.delete(type);\n            window.clearTimeout(oldTimeout);\n            const timeout = window.setTimeout(() => {\n                map.delete(type);\n                // if we cleared out all timeouts for the current target, delete its map\n                if (map.size === 0) {\n                    map = null;\n                    EVENT_MAP.delete(this);\n                }\n                this.trigger(event);\n            }, 0);\n            map.set(type, timeout);\n        }\n    }\n\n    /**\n     * A Custom DOM event.\n     *\n     * @typedef {CustomEvent} Event\n     * @see [Properties]{@link https://developer.mozilla.org/en-US/docs/Web/API/CustomEvent}\n     */\n\n    /**\n     * All event listeners should follow the following format.\n     *\n     * @callback EventTarget~EventListener\n     * @this {EventTarget}\n     *\n     * @param {Event} event\n     *        the event that triggered this function\n     *\n     * @param {Object} [hash]\n     *        hash of data sent during the event\n     */\n\n    /**\n     * An object containing event names as keys and booleans as values.\n     *\n     * > NOTE: If an event name is set to a true value here {@link EventTarget#trigger}\n     *         will have extra functionality. See that function for more information.\n     *\n     * @property EventTarget.prototype.allowedEvents_\n     * @private\n     */\n    EventTarget$2.prototype.allowedEvents_ = {};\n\n    /**\n     * An alias of {@link EventTarget#on}. Allows `EventTarget` to mimic\n     * the standard DOM API.\n     *\n     * @function\n     * @see {@link EventTarget#on}\n     */\n    EventTarget$2.prototype.addEventListener = EventTarget$2.prototype.on;\n\n    /**\n     * An alias of {@link EventTarget#off}. Allows `EventTarget` to mimic\n     * the standard DOM API.\n     *\n     * @function\n     * @see {@link EventTarget#off}\n     */\n    EventTarget$2.prototype.removeEventListener = EventTarget$2.prototype.off;\n\n    /**\n     * An alias of {@link EventTarget#trigger}. Allows `EventTarget` to mimic\n     * the standard DOM API.\n     *\n     * @function\n     * @see {@link EventTarget#trigger}\n     */\n    EventTarget$2.prototype.dispatchEvent = EventTarget$2.prototype.trigger;\n\n    /**\n     * @file mixins/evented.js\n     * @module evented\n     */\n    const objName = obj => {\n        if (typeof obj.name === 'function') {\n            return obj.name();\n        }\n        if (typeof obj.name === 'string') {\n            return obj.name;\n        }\n        if (obj.name_) {\n            return obj.name_;\n        }\n        if (obj.constructor && obj.constructor.name) {\n            return obj.constructor.name;\n        }\n        return typeof obj;\n    };\n\n    /**\n     * Returns whether or not an object has had the evented mixin applied.\n     *\n     * @param  {Object} object\n     *         An object to test.\n     *\n     * @return {boolean}\n     *         Whether or not the object appears to be evented.\n     */\n    const isEvented = object => object instanceof EventTarget$2 || !!object.eventBusEl_ && ['on', 'one', 'off', 'trigger'].every(k => typeof object[k] === 'function');\n\n    /**\n     * Adds a callback to run after the evented mixin applied.\n     *\n     * @param  {Object} object\n     *         An object to Add\n     * @param  {Function} callback\n     *         The callback to run.\n     */\n    const addEventedCallback = (target, callback) => {\n        if (isEvented(target)) {\n            callback();\n        } else {\n            if (!target.eventedCallbacks) {\n                target.eventedCallbacks = [];\n            }\n            target.eventedCallbacks.push(callback);\n        }\n    };\n\n    /**\n     * Whether a value is a valid event type - non-empty string or array.\n     *\n     * @private\n     * @param  {string|Array} type\n     *         The type value to test.\n     *\n     * @return {boolean}\n     *         Whether or not the type is a valid event type.\n     */\n    const isValidEventType = type =>\n        // The regex here verifies that the `type` contains at least one non-\n        // whitespace character.\n        typeof type === 'string' && /\\S/.test(type) || Array.isArray(type) && !!type.length;\n\n    /**\n     * Validates a value to determine if it is a valid event target. Throws if not.\n     *\n     * @private\n     * @throws {Error}\n     *         If the target does not appear to be a valid event target.\n     *\n     * @param  {Object} target\n     *         The object to test.\n     *\n     * @param  {Object} obj\n     *         The evented object we are validating for\n     *\n     * @param  {string} fnName\n     *         The name of the evented mixin function that called this.\n     */\n    const validateTarget = (target, obj, fnName) => {\n        if (!target || !target.nodeName && !isEvented(target)) {\n            throw new Error(`Invalid target for ${objName(obj)}#${fnName}; must be a DOM node or evented object.`);\n        }\n    };\n\n    /**\n     * Validates a value to determine if it is a valid event target. Throws if not.\n     *\n     * @private\n     * @throws {Error}\n     *         If the type does not appear to be a valid event type.\n     *\n     * @param  {string|Array} type\n     *         The type to test.\n     *\n     * @param  {Object} obj\n     *         The evented object we are validating for\n     *\n     * @param  {string} fnName\n     *         The name of the evented mixin function that called this.\n     */\n    const validateEventType = (type, obj, fnName) => {\n        if (!isValidEventType(type)) {\n            throw new Error(`Invalid event type for ${objName(obj)}#${fnName}; must be a non-empty string or array.`);\n        }\n    };\n\n    /**\n     * Validates a value to determine if it is a valid listener. Throws if not.\n     *\n     * @private\n     * @throws {Error}\n     *         If the listener is not a function.\n     *\n     * @param  {Function} listener\n     *         The listener to test.\n     *\n     * @param  {Object} obj\n     *         The evented object we are validating for\n     *\n     * @param  {string} fnName\n     *         The name of the evented mixin function that called this.\n     */\n    const validateListener = (listener, obj, fnName) => {\n        if (typeof listener !== 'function') {\n            throw new Error(`Invalid listener for ${objName(obj)}#${fnName}; must be a function.`);\n        }\n    };\n\n    /**\n     * Takes an array of arguments given to `on()` or `one()`, validates them, and\n     * normalizes them into an object.\n     *\n     * @private\n     * @param  {Object} self\n     *         The evented object on which `on()` or `one()` was called. This\n     *         object will be bound as the `this` value for the listener.\n     *\n     * @param  {Array} args\n     *         An array of arguments passed to `on()` or `one()`.\n     *\n     * @param  {string} fnName\n     *         The name of the evented mixin function that called this.\n     *\n     * @return {Object}\n     *         An object containing useful values for `on()` or `one()` calls.\n     */\n    const normalizeListenArgs = (self, args, fnName) => {\n        // If the number of arguments is less than 3, the target is always the\n        // evented object itself.\n        const isTargetingSelf = args.length < 3 || args[0] === self || args[0] === self.eventBusEl_;\n        let target;\n        let type;\n        let listener;\n        if (isTargetingSelf) {\n            target = self.eventBusEl_;\n\n            // Deal with cases where we got 3 arguments, but we are still listening to\n            // the evented object itself.\n            if (args.length >= 3) {\n                args.shift();\n            }\n            [type, listener] = args;\n        } else {\n            [target, type, listener] = args;\n        }\n        validateTarget(target, self, fnName);\n        validateEventType(type, self, fnName);\n        validateListener(listener, self, fnName);\n        listener = bind_(self, listener);\n        return {\n            isTargetingSelf,\n            target,\n            type,\n            listener\n        };\n    };\n\n    /**\n     * Adds the listener to the event type(s) on the target, normalizing for\n     * the type of target.\n     *\n     * @private\n     * @param  {Element|Object} target\n     *         A DOM node or evented object.\n     *\n     * @param  {string} method\n     *         The event binding method to use (\"on\" or \"one\").\n     *\n     * @param  {string|Array} type\n     *         One or more event type(s).\n     *\n     * @param  {Function} listener\n     *         A listener function.\n     */\n    const listen = (target, method, type, listener) => {\n        validateTarget(target, target, method);\n        if (target.nodeName) {\n            Events[method](target, type, listener);\n        } else {\n            target[method](type, listener);\n        }\n    };\n\n    /**\n     * Contains methods that provide event capabilities to an object which is passed\n     * to {@link module:evented|evented}.\n     *\n     * @mixin EventedMixin\n     */\n    const EventedMixin = {\n        /**\n         * Add a listener to an event (or events) on this object or another evented\n         * object.\n         *\n         * @param  {string|Array|Element|Object} targetOrType\n         *         If this is a string or array, it represents the event type(s)\n         *         that will trigger the listener.\n         *\n         *         Another evented object can be passed here instead, which will\n         *         cause the listener to listen for events on _that_ object.\n         *\n         *         In either case, the listener's `this` value will be bound to\n         *         this object.\n         *\n         * @param  {string|Array|Function} typeOrListener\n         *         If the first argument was a string or array, this should be the\n         *         listener function. Otherwise, this is a string or array of event\n         *         type(s).\n         *\n         * @param  {Function} [listener]\n         *         If the first argument was another evented object, this will be\n         *         the listener function.\n         */\n        on(...args) {\n            const {\n                isTargetingSelf,\n                target,\n                type,\n                listener\n            } = normalizeListenArgs(this, args, 'on');\n            listen(target, 'on', type, listener);\n\n            // If this object is listening to another evented object.\n            if (!isTargetingSelf) {\n                // If this object is disposed, remove the listener.\n                const removeListenerOnDispose = () => this.off(target, type, listener);\n\n                // Use the same function ID as the listener so we can remove it later it\n                // using the ID of the original listener.\n                removeListenerOnDispose.guid = listener.guid;\n\n                // Add a listener to the target's dispose event as well. This ensures\n                // that if the target is disposed BEFORE this object, we remove the\n                // removal listener that was just added. Otherwise, we create a memory leak.\n                const removeRemoverOnTargetDispose = () => this.off('dispose', removeListenerOnDispose);\n\n                // Use the same function ID as the listener so we can remove it later\n                // it using the ID of the original listener.\n                removeRemoverOnTargetDispose.guid = listener.guid;\n                listen(this, 'on', 'dispose', removeListenerOnDispose);\n                listen(target, 'on', 'dispose', removeRemoverOnTargetDispose);\n            }\n        },\n        /**\n         * Add a listener to an event (or events) on this object or another evented\n         * object. The listener will be called once per event and then removed.\n         *\n         * @param  {string|Array|Element|Object} targetOrType\n         *         If this is a string or array, it represents the event type(s)\n         *         that will trigger the listener.\n         *\n         *         Another evented object can be passed here instead, which will\n         *         cause the listener to listen for events on _that_ object.\n         *\n         *         In either case, the listener's `this` value will be bound to\n         *         this object.\n         *\n         * @param  {string|Array|Function} typeOrListener\n         *         If the first argument was a string or array, this should be the\n         *         listener function. Otherwise, this is a string or array of event\n         *         type(s).\n         *\n         * @param  {Function} [listener]\n         *         If the first argument was another evented object, this will be\n         *         the listener function.\n         */\n        one(...args) {\n            const {\n                isTargetingSelf,\n                target,\n                type,\n                listener\n            } = normalizeListenArgs(this, args, 'one');\n\n            // Targeting this evented object.\n            if (isTargetingSelf) {\n                listen(target, 'one', type, listener);\n\n                // Targeting another evented object.\n            } else {\n                // TODO: This wrapper is incorrect! It should only\n                //       remove the wrapper for the event type that called it.\n                //       Instead all listeners are removed on the first trigger!\n                //       see https://github.com/videojs/video.js/issues/5962\n                const wrapper = (...largs) => {\n                    this.off(target, type, wrapper);\n                    listener.apply(null, largs);\n                };\n\n                // Use the same function ID as the listener so we can remove it later\n                // it using the ID of the original listener.\n                wrapper.guid = listener.guid;\n                listen(target, 'one', type, wrapper);\n            }\n        },\n        /**\n         * Add a listener to an event (or events) on this object or another evented\n         * object. The listener will only be called once for the first event that is triggered\n         * then removed.\n         *\n         * @param  {string|Array|Element|Object} targetOrType\n         *         If this is a string or array, it represents the event type(s)\n         *         that will trigger the listener.\n         *\n         *         Another evented object can be passed here instead, which will\n         *         cause the listener to listen for events on _that_ object.\n         *\n         *         In either case, the listener's `this` value will be bound to\n         *         this object.\n         *\n         * @param  {string|Array|Function} typeOrListener\n         *         If the first argument was a string or array, this should be the\n         *         listener function. Otherwise, this is a string or array of event\n         *         type(s).\n         *\n         * @param  {Function} [listener]\n         *         If the first argument was another evented object, this will be\n         *         the listener function.\n         */\n        any(...args) {\n            const {\n                isTargetingSelf,\n                target,\n                type,\n                listener\n            } = normalizeListenArgs(this, args, 'any');\n\n            // Targeting this evented object.\n            if (isTargetingSelf) {\n                listen(target, 'any', type, listener);\n\n                // Targeting another evented object.\n            } else {\n                const wrapper = (...largs) => {\n                    this.off(target, type, wrapper);\n                    listener.apply(null, largs);\n                };\n\n                // Use the same function ID as the listener so we can remove it later\n                // it using the ID of the original listener.\n                wrapper.guid = listener.guid;\n                listen(target, 'any', type, wrapper);\n            }\n        },\n        /**\n         * Removes listener(s) from event(s) on an evented object.\n         *\n         * @param  {string|Array|Element|Object} [targetOrType]\n         *         If this is a string or array, it represents the event type(s).\n         *\n         *         Another evented object can be passed here instead, in which case\n         *         ALL 3 arguments are _required_.\n         *\n         * @param  {string|Array|Function} [typeOrListener]\n         *         If the first argument was a string or array, this may be the\n         *         listener function. Otherwise, this is a string or array of event\n         *         type(s).\n         *\n         * @param  {Function} [listener]\n         *         If the first argument was another evented object, this will be\n         *         the listener function; otherwise, _all_ listeners bound to the\n         *         event type(s) will be removed.\n         */\n        off(targetOrType, typeOrListener, listener) {\n            // Targeting this evented object.\n            if (!targetOrType || isValidEventType(targetOrType)) {\n                off(this.eventBusEl_, targetOrType, typeOrListener);\n\n                // Targeting another evented object.\n            } else {\n                const target = targetOrType;\n                const type = typeOrListener;\n\n                // Fail fast and in a meaningful way!\n                validateTarget(target, this, 'off');\n                validateEventType(type, this, 'off');\n                validateListener(listener, this, 'off');\n\n                // Ensure there's at least a guid, even if the function hasn't been used\n                listener = bind_(this, listener);\n\n                // Remove the dispose listener on this evented object, which was given\n                // the same guid as the event listener in on().\n                this.off('dispose', listener);\n                if (target.nodeName) {\n                    off(target, type, listener);\n                    off(target, 'dispose', listener);\n                } else if (isEvented(target)) {\n                    target.off(type, listener);\n                    target.off('dispose', listener);\n                }\n            }\n        },\n        /**\n         * Fire an event on this evented object, causing its listeners to be called.\n         *\n         * @param   {string|Object} event\n         *          An event type or an object with a type property.\n         *\n         * @param   {Object} [hash]\n         *          An additional object to pass along to listeners.\n         *\n         * @return {boolean}\n         *          Whether or not the default behavior was prevented.\n         */\n        trigger(event, hash) {\n            validateTarget(this.eventBusEl_, this, 'trigger');\n            const type = event && typeof event !== 'string' ? event.type : event;\n            if (!isValidEventType(type)) {\n                throw new Error(`Invalid event type for ${objName(this)}#trigger; ` + 'must be a non-empty string or object with a type key that has a non-empty value.');\n            }\n            return trigger(this.eventBusEl_, event, hash);\n        }\n    };\n\n    /**\n     * Applies {@link module:evented~EventedMixin|EventedMixin} to a target object.\n     *\n     * @param  {Object} target\n     *         The object to which to add event methods.\n     *\n     * @param  {Object} [options={}]\n     *         Options for customizing the mixin behavior.\n     *\n     * @param  {string} [options.eventBusKey]\n     *         By default, adds a `eventBusEl_` DOM element to the target object,\n     *         which is used as an event bus. If the target object already has a\n     *         DOM element that should be used, pass its key here.\n     *\n     * @return {Object}\n     *         The target object.\n     */\n    function evented(target, options = {}) {\n        const {\n            eventBusKey\n        } = options;\n\n        // Set or create the eventBusEl_.\n        if (eventBusKey) {\n            if (!target[eventBusKey].nodeName) {\n                throw new Error(`The eventBusKey \"${eventBusKey}\" does not refer to an element.`);\n            }\n            target.eventBusEl_ = target[eventBusKey];\n        } else {\n            target.eventBusEl_ = createEl('span', {\n                className: 'vjs-event-bus'\n            });\n        }\n        Object.assign(target, EventedMixin);\n        if (target.eventedCallbacks) {\n            target.eventedCallbacks.forEach(callback => {\n                callback();\n            });\n        }\n\n        // When any evented object is disposed, it removes all its listeners.\n        target.on('dispose', () => {\n            target.off();\n            [target, target.el_, target.eventBusEl_].forEach(function (val) {\n                if (val && DomData.has(val)) {\n                    DomData.delete(val);\n                }\n            });\n            window.setTimeout(() => {\n                target.eventBusEl_ = null;\n            }, 0);\n        });\n        return target;\n    }\n\n    /**\n     * @file mixins/stateful.js\n     * @module stateful\n     */\n\n    /**\n     * Contains methods that provide statefulness to an object which is passed\n     * to {@link module:stateful}.\n     *\n     * @mixin StatefulMixin\n     */\n    const StatefulMixin = {\n        /**\n         * A hash containing arbitrary keys and values representing the state of\n         * the object.\n         *\n         * @type {Object}\n         */\n        state: {},\n        /**\n         * Set the state of an object by mutating its\n         * {@link module:stateful~StatefulMixin.state|state} object in place.\n         *\n         * @fires   module:stateful~StatefulMixin#statechanged\n         * @param   {Object|Function} stateUpdates\n         *          A new set of properties to shallow-merge into the plugin state.\n         *          Can be a plain object or a function returning a plain object.\n         *\n         * @return {Object|undefined}\n         *          An object containing changes that occurred. If no changes\n         *          occurred, returns `undefined`.\n         */\n        setState(stateUpdates) {\n            // Support providing the `stateUpdates` state as a function.\n            if (typeof stateUpdates === 'function') {\n                stateUpdates = stateUpdates();\n            }\n            let changes;\n            each(stateUpdates, (value, key) => {\n                // Record the change if the value is different from what's in the\n                // current state.\n                if (this.state[key] !== value) {\n                    changes = changes || {};\n                    changes[key] = {\n                        from: this.state[key],\n                        to: value\n                    };\n                }\n                this.state[key] = value;\n            });\n\n            // Only trigger \"statechange\" if there were changes AND we have a trigger\n            // function. This allows us to not require that the target object be an\n            // evented object.\n            if (changes && isEvented(this)) {\n                /**\n                 * An event triggered on an object that is both\n                 * {@link module:stateful|stateful} and {@link module:evented|evented}\n                 * indicating that its state has changed.\n                 *\n                 * @event    module:stateful~StatefulMixin#statechanged\n                 * @type     {Object}\n                 * @property {Object} changes\n                 *           A hash containing the properties that were changed and\n                 *           the values they were changed `from` and `to`.\n                 */\n                this.trigger({\n                    changes,\n                    type: 'statechanged'\n                });\n            }\n            return changes;\n        }\n    };\n\n    /**\n     * Applies {@link module:stateful~StatefulMixin|StatefulMixin} to a target\n     * object.\n     *\n     * If the target object is {@link module:evented|evented} and has a\n     * `handleStateChanged` method, that method will be automatically bound to the\n     * `statechanged` event on itself.\n     *\n     * @param   {Object} target\n     *          The object to be made stateful.\n     *\n     * @param   {Object} [defaultState]\n     *          A default set of properties to populate the newly-stateful object's\n     *          `state` property.\n     *\n     * @return {Object}\n     *          Returns the `target`.\n     */\n    function stateful(target, defaultState) {\n        Object.assign(target, StatefulMixin);\n\n        // This happens after the mixing-in because we need to replace the `state`\n        // added in that step.\n        target.state = Object.assign({}, target.state, defaultState);\n\n        // Auto-bind the `handleStateChanged` method of the target object if it exists.\n        if (typeof target.handleStateChanged === 'function' && isEvented(target)) {\n            target.on('statechanged', target.handleStateChanged);\n        }\n        return target;\n    }\n\n    /**\n     * @file str.js\n     * @module to-lower-case\n     */\n\n    /**\n     * Lowercase the first letter of a string.\n     *\n     * @param {string} string\n     *        String to be lowercased\n     *\n     * @return {string}\n     *         The string with a lowercased first letter\n     */\n    const toLowerCase = function (string) {\n        if (typeof string !== 'string') {\n            return string;\n        }\n        return string.replace(/./, w => w.toLowerCase());\n    };\n\n    /**\n     * Uppercase the first letter of a string.\n     *\n     * @param {string} string\n     *        String to be uppercased\n     *\n     * @return {string}\n     *         The string with an uppercased first letter\n     */\n    const toTitleCase$1 = function (string) {\n        if (typeof string !== 'string') {\n            return string;\n        }\n        return string.replace(/./, w => w.toUpperCase());\n    };\n\n    /**\n     * Compares the TitleCase versions of the two strings for equality.\n     *\n     * @param {string} str1\n     *        The first string to compare\n     *\n     * @param {string} str2\n     *        The second string to compare\n     *\n     * @return {boolean}\n     *         Whether the TitleCase versions of the strings are equal\n     */\n    const titleCaseEquals = function (str1, str2) {\n        return toTitleCase$1(str1) === toTitleCase$1(str2);\n    };\n\n    var Str = /*#__PURE__*/Object.freeze({\n        __proto__: null,\n        toLowerCase: toLowerCase,\n        toTitleCase: toTitleCase$1,\n        titleCaseEquals: titleCaseEquals\n    });\n\n    var commonjsGlobal = typeof globalThis !== 'undefined' ? globalThis : typeof window !== 'undefined' ? window : typeof global !== 'undefined' ? global : typeof self !== 'undefined' ? self : {};\n\n    function unwrapExports (x) {\n        return x && x.__esModule && Object.prototype.hasOwnProperty.call(x, 'default') ? x['default'] : x;\n    }\n\n    function createCommonjsModule(fn, module) {\n        return module = { exports: {} }, fn(module, module.exports), module.exports;\n    }\n\n    var keycode = createCommonjsModule(function (module, exports) {\n        // Source: http://jsfiddle.net/vWx8V/\n        // http://stackoverflow.com/questions/5603195/full-list-of-javascript-keycodes\n\n        /**\n         * Conenience method returns corresponding value for given keyName or keyCode.\n         *\n         * @param {Mixed} keyCode {Number} or keyName {String}\n         * @return {Mixed}\n         * @api public\n         */\n\n        function keyCode(searchInput) {\n            // Keyboard Events\n            if (searchInput && 'object' === typeof searchInput) {\n                var hasKeyCode = searchInput.which || searchInput.keyCode || searchInput.charCode;\n                if (hasKeyCode) searchInput = hasKeyCode;\n            }\n\n            // Numbers\n            if ('number' === typeof searchInput) return names[searchInput];\n\n            // Everything else (cast to string)\n            var search = String(searchInput);\n\n            // check codes\n            var foundNamedKey = codes[search.toLowerCase()];\n            if (foundNamedKey) return foundNamedKey;\n\n            // check aliases\n            var foundNamedKey = aliases[search.toLowerCase()];\n            if (foundNamedKey) return foundNamedKey;\n\n            // weird character?\n            if (search.length === 1) return search.charCodeAt(0);\n            return undefined;\n        }\n\n        /**\n         * Compares a keyboard event with a given keyCode or keyName.\n         *\n         * @param {Event} event Keyboard event that should be tested\n         * @param {Mixed} keyCode {Number} or keyName {String}\n         * @return {Boolean}\n         * @api public\n         */\n        keyCode.isEventKey = function isEventKey(event, nameOrCode) {\n            if (event && 'object' === typeof event) {\n                var keyCode = event.which || event.keyCode || event.charCode;\n                if (keyCode === null || keyCode === undefined) {\n                    return false;\n                }\n                if (typeof nameOrCode === 'string') {\n                    // check codes\n                    var foundNamedKey = codes[nameOrCode.toLowerCase()];\n                    if (foundNamedKey) {\n                        return foundNamedKey === keyCode;\n                    }\n\n                    // check aliases\n                    var foundNamedKey = aliases[nameOrCode.toLowerCase()];\n                    if (foundNamedKey) {\n                        return foundNamedKey === keyCode;\n                    }\n                } else if (typeof nameOrCode === 'number') {\n                    return nameOrCode === keyCode;\n                }\n                return false;\n            }\n        };\n        exports = module.exports = keyCode;\n\n        /**\n         * Get by name\n         *\n         *   exports.code['enter'] // => 13\n         */\n\n        var codes = exports.code = exports.codes = {\n            'backspace': 8,\n            'tab': 9,\n            'enter': 13,\n            'shift': 16,\n            'ctrl': 17,\n            'alt': 18,\n            'pause/break': 19,\n            'caps lock': 20,\n            'esc': 27,\n            'space': 32,\n            'page up': 33,\n            'page down': 34,\n            'end': 35,\n            'home': 36,\n            'left': 37,\n            'up': 38,\n            'right': 39,\n            'down': 40,\n            'insert': 45,\n            'delete': 46,\n            'command': 91,\n            'left command': 91,\n            'right command': 93,\n            'numpad *': 106,\n            'numpad +': 107,\n            'numpad -': 109,\n            'numpad .': 110,\n            'numpad /': 111,\n            'num lock': 144,\n            'scroll lock': 145,\n            'my computer': 182,\n            'my calculator': 183,\n            ';': 186,\n            '=': 187,\n            ',': 188,\n            '-': 189,\n            '.': 190,\n            '/': 191,\n            '`': 192,\n            '[': 219,\n            '\\\\': 220,\n            ']': 221,\n            \"'\": 222\n        };\n\n        // Helper aliases\n\n        var aliases = exports.aliases = {\n            'windows': 91,\n            '⇧': 16,\n            '⌥': 18,\n            '⌃': 17,\n            '⌘': 91,\n            'ctl': 17,\n            'control': 17,\n            'option': 18,\n            'pause': 19,\n            'break': 19,\n            'caps': 20,\n            'return': 13,\n            'escape': 27,\n            'spc': 32,\n            'spacebar': 32,\n            'pgup': 33,\n            'pgdn': 34,\n            'ins': 45,\n            'del': 46,\n            'cmd': 91\n        };\n\n        /*!\n     * Programatically add the following\n     */\n\n        // lower case chars\n        for (i = 97; i < 123; i++) codes[String.fromCharCode(i)] = i - 32;\n\n        // numbers\n        for (var i = 48; i < 58; i++) codes[i - 48] = i;\n\n        // function keys\n        for (i = 1; i < 13; i++) codes['f' + i] = i + 111;\n\n        // numpad keys\n        for (i = 0; i < 10; i++) codes['numpad ' + i] = i + 96;\n\n        /**\n         * Get by code\n         *\n         *   exports.name[13] // => 'Enter'\n         */\n\n        var names = exports.names = exports.title = {}; // title for backward compat\n\n        // Create reverse mapping\n        for (i in codes) names[codes[i]] = i;\n\n        // Add aliases\n        for (var alias in aliases) {\n            codes[alias] = aliases[alias];\n        }\n    });\n    keycode.code;\n    keycode.codes;\n    keycode.aliases;\n    keycode.names;\n    keycode.title;\n\n    /**\n     * Player Component - Base class for all UI objects\n     *\n     * @file component.js\n     */\n\n    /**\n     * Base class for all UI Components.\n     * Components are UI objects which represent both a javascript object and an element\n     * in the DOM. They can be children of other components, and can have\n     * children themselves.\n     *\n     * Components can also use methods from {@link EventTarget}\n     */\n    class Component$1 {\n        /**\n         * A callback that is called when a component is ready. Does not have any\n         * parameters and any callback value will be ignored.\n         *\n         * @callback ReadyCallback\n         * @this Component\n         */\n\n        /**\n         * Creates an instance of this class.\n         *\n         * @param { import('./player').default } player\n         *        The `Player` that this class should be attached to.\n         *\n         * @param {Object} [options]\n         *        The key/value store of component options.\n         *\n         * @param {Object[]} [options.children]\n         *        An array of children objects to initialize this component with. Children objects have\n         *        a name property that will be used if more than one component of the same type needs to be\n         *        added.\n         *\n         * @param  {string} [options.className]\n         *         A class or space separated list of classes to add the component\n         *\n         * @param {ReadyCallback} [ready]\n         *        Function that gets called when the `Component` is ready.\n         */\n        constructor(player, options, ready) {\n            // The component might be the player itself and we can't pass `this` to super\n            if (!player && this.play) {\n                this.player_ = player = this; // eslint-disable-line\n            } else {\n                this.player_ = player;\n            }\n            this.isDisposed_ = false;\n\n            // Hold the reference to the parent component via `addChild` method\n            this.parentComponent_ = null;\n\n            // Make a copy of prototype.options_ to protect against overriding defaults\n            this.options_ = merge$2({}, this.options_);\n\n            // Updated options with supplied options\n            options = this.options_ = merge$2(this.options_, options);\n\n            // Get ID from options or options element if one is supplied\n            this.id_ = options.id || options.el && options.el.id;\n\n            // If there was no ID from the options, generate one\n            if (!this.id_) {\n                // Don't require the player ID function in the case of mock players\n                const id = player && player.id && player.id() || 'no_player';\n                this.id_ = `${id}_component_${newGUID()}`;\n            }\n            this.name_ = options.name || null;\n\n            // Create element if one wasn't provided in options\n            if (options.el) {\n                this.el_ = options.el;\n            } else if (options.createEl !== false) {\n                this.el_ = this.createEl();\n            }\n            if (options.className && this.el_) {\n                options.className.split(' ').forEach(c => this.addClass(c));\n            }\n\n            // Remove the placeholder event methods. If the component is evented, the\n            // real methods are added next\n            ['on', 'off', 'one', 'any', 'trigger'].forEach(fn => {\n                this[fn] = undefined;\n            });\n\n            // if evented is anything except false, we want to mixin in evented\n            if (options.evented !== false) {\n                // Make this an evented object and use `el_`, if available, as its event bus\n                evented(this, {\n                    eventBusKey: this.el_ ? 'el_' : null\n                });\n                this.handleLanguagechange = this.handleLanguagechange.bind(this);\n                this.on(this.player_, 'languagechange', this.handleLanguagechange);\n            }\n            stateful(this, this.constructor.defaultState);\n            this.children_ = [];\n            this.childIndex_ = {};\n            this.childNameIndex_ = {};\n            this.setTimeoutIds_ = new Set();\n            this.setIntervalIds_ = new Set();\n            this.rafIds_ = new Set();\n            this.namedRafs_ = new Map();\n            this.clearingTimersOnDispose_ = false;\n\n            // Add any child components in options\n            if (options.initChildren !== false) {\n                this.initChildren();\n            }\n\n            // Don't want to trigger ready here or it will go before init is actually\n            // finished for all children that run this constructor\n            this.ready(ready);\n            if (options.reportTouchActivity !== false) {\n                this.enableTouchActivity();\n            }\n        }\n\n        // `on`, `off`, `one`, `any` and `trigger` are here so tsc includes them in definitions.\n        // They are replaced or removed in the constructor\n\n        /**\n         * Adds an `event listener` to an instance of an `EventTarget`. An `event listener` is a\n         * function that will get called when an event with a certain name gets triggered.\n         *\n         * @param {string|string[]} type\n         *        An event name or an array of event names.\n         *\n         * @param {Function} fn\n         *        The function to call with `EventTarget`s\n         */\n        on(type, fn) {}\n\n        /**\n         * Removes an `event listener` for a specific event from an instance of `EventTarget`.\n         * This makes it so that the `event listener` will no longer get called when the\n         * named event happens.\n         *\n         * @param {string|string[]} type\n         *        An event name or an array of event names.\n         *\n         * @param {Function} fn\n         *        The function to remove.\n         */\n        off(type, fn) {}\n\n        /**\n         * This function will add an `event listener` that gets triggered only once. After the\n         * first trigger it will get removed. This is like adding an `event listener`\n         * with {@link EventTarget#on} that calls {@link EventTarget#off} on itself.\n         *\n         * @param {string|string[]} type\n         *        An event name or an array of event names.\n         *\n         * @param {Function} fn\n         *        The function to be called once for each event name.\n         */\n        one(type, fn) {}\n\n        /**\n         * This function will add an `event listener` that gets triggered only once and is\n         * removed from all events. This is like adding an array of `event listener`s\n         * with {@link EventTarget#on} that calls {@link EventTarget#off} on all events the\n         * first time it is triggered.\n         *\n         * @param {string|string[]} type\n         *        An event name or an array of event names.\n         *\n         * @param {Function} fn\n         *        The function to be called once for each event name.\n         */\n        any(type, fn) {}\n\n        /**\n         * This function causes an event to happen. This will then cause any `event listeners`\n         * that are waiting for that event, to get called. If there are no `event listeners`\n         * for an event then nothing will happen.\n         *\n         * If the name of the `Event` that is being triggered is in `EventTarget.allowedEvents_`.\n         * Trigger will also call the `on` + `uppercaseEventName` function.\n         *\n         * Example:\n         * 'click' is in `EventTarget.allowedEvents_`, so, trigger will attempt to call\n         * `onClick` if it exists.\n         *\n         * @param {string|Event|Object} event\n         *        The name of the event, an `Event`, or an object with a key of type set to\n         *        an event name.\n         */\n        trigger(event) {}\n\n        /**\n         * Dispose of the `Component` and all child components.\n         *\n         * @fires Component#dispose\n         *\n         * @param {Object} options\n         * @param {Element} options.originalEl element with which to replace player element\n         */\n        dispose(options = {}) {\n            // Bail out if the component has already been disposed.\n            if (this.isDisposed_) {\n                return;\n            }\n            if (this.readyQueue_) {\n                this.readyQueue_.length = 0;\n            }\n\n            /**\n             * Triggered when a `Component` is disposed.\n             *\n             * @event Component#dispose\n             * @type {Event}\n             *\n             * @property {boolean} [bubbles=false]\n             *           set to false so that the dispose event does not\n             *           bubble up\n             */\n            this.trigger({\n                type: 'dispose',\n                bubbles: false\n            });\n            this.isDisposed_ = true;\n\n            // Dispose all children.\n            if (this.children_) {\n                for (let i = this.children_.length - 1; i >= 0; i--) {\n                    if (this.children_[i].dispose) {\n                        this.children_[i].dispose();\n                    }\n                }\n            }\n\n            // Delete child references\n            this.children_ = null;\n            this.childIndex_ = null;\n            this.childNameIndex_ = null;\n            this.parentComponent_ = null;\n            if (this.el_) {\n                // Remove element from DOM\n                if (this.el_.parentNode) {\n                    if (options.restoreEl) {\n                        this.el_.parentNode.replaceChild(options.restoreEl, this.el_);\n                    } else {\n                        this.el_.parentNode.removeChild(this.el_);\n                    }\n                }\n                this.el_ = null;\n            }\n\n            // remove reference to the player after disposing of the element\n            this.player_ = null;\n        }\n\n        /**\n         * Determine whether or not this component has been disposed.\n         *\n         * @return {boolean}\n         *         If the component has been disposed, will be `true`. Otherwise, `false`.\n         */\n        isDisposed() {\n            return Boolean(this.isDisposed_);\n        }\n\n        /**\n         * Return the {@link Player} that the `Component` has attached to.\n         *\n         * @return { import('./player').default }\n         *         The player that this `Component` has attached to.\n         */\n        player() {\n            return this.player_;\n        }\n\n        /**\n         * Deep merge of options objects with new options.\n         * > Note: When both `obj` and `options` contain properties whose values are objects.\n         *         The two properties get merged using {@link module:obj.merge}\n         *\n         * @param {Object} obj\n         *        The object that contains new options.\n         *\n         * @return {Object}\n         *         A new object of `this.options_` and `obj` merged together.\n         */\n        options(obj) {\n            if (!obj) {\n                return this.options_;\n            }\n            this.options_ = merge$2(this.options_, obj);\n            return this.options_;\n        }\n\n        /**\n         * Get the `Component`s DOM element\n         *\n         * @return {Element}\n         *         The DOM element for this `Component`.\n         */\n        el() {\n            return this.el_;\n        }\n\n        /**\n         * Create the `Component`s DOM element.\n         *\n         * @param {string} [tagName]\n         *        Element's DOM node type. e.g. 'div'\n         *\n         * @param {Object} [properties]\n         *        An object of properties that should be set.\n         *\n         * @param {Object} [attributes]\n         *        An object of attributes that should be set.\n         *\n         * @return {Element}\n         *         The element that gets created.\n         */\n        createEl(tagName, properties, attributes) {\n            return createEl(tagName, properties, attributes);\n        }\n\n        /**\n         * Localize a string given the string in english.\n         *\n         * If tokens are provided, it'll try and run a simple token replacement on the provided string.\n         * The tokens it looks for look like `{1}` with the index being 1-indexed into the tokens array.\n         *\n         * If a `defaultValue` is provided, it'll use that over `string`,\n         * if a value isn't found in provided language files.\n         * This is useful if you want to have a descriptive key for token replacement\n         * but have a succinct localized string and not require `en.json` to be included.\n         *\n         * Currently, it is used for the progress bar timing.\n         * ```js\n         * {\n         *   \"progress bar timing: currentTime={1} duration={2}\": \"{1} of {2}\"\n         * }\n         * ```\n         * It is then used like so:\n         * ```js\n         * this.localize('progress bar timing: currentTime={1} duration{2}',\n         *               [this.player_.currentTime(), this.player_.duration()],\n         *               '{1} of {2}');\n         * ```\n         *\n         * Which outputs something like: `01:23 of 24:56`.\n         *\n         *\n         * @param {string} string\n         *        The string to localize and the key to lookup in the language files.\n         * @param {string[]} [tokens]\n         *        If the current item has token replacements, provide the tokens here.\n         * @param {string} [defaultValue]\n         *        Defaults to `string`. Can be a default value to use for token replacement\n         *        if the lookup key is needed to be separate.\n         *\n         * @return {string}\n         *         The localized string or if no localization exists the english string.\n         */\n        localize(string, tokens, defaultValue = string) {\n            const code = this.player_.language && this.player_.language();\n            const languages = this.player_.languages && this.player_.languages();\n            const language = languages && languages[code];\n            const primaryCode = code && code.split('-')[0];\n            const primaryLang = languages && languages[primaryCode];\n            let localizedString = defaultValue;\n            if (language && language[string]) {\n                localizedString = language[string];\n            } else if (primaryLang && primaryLang[string]) {\n                localizedString = primaryLang[string];\n            }\n            if (tokens) {\n                localizedString = localizedString.replace(/\\{(\\d+)\\}/g, function (match, index) {\n                    const value = tokens[index - 1];\n                    let ret = value;\n                    if (typeof value === 'undefined') {\n                        ret = match;\n                    }\n                    return ret;\n                });\n            }\n            return localizedString;\n        }\n\n        /**\n         * Handles language change for the player in components. Should be overridden by sub-components.\n         *\n         * @abstract\n         */\n        handleLanguagechange() {}\n\n        /**\n         * Return the `Component`s DOM element. This is where children get inserted.\n         * This will usually be the the same as the element returned in {@link Component#el}.\n         *\n         * @return {Element}\n         *         The content element for this `Component`.\n         */\n        contentEl() {\n            return this.contentEl_ || this.el_;\n        }\n\n        /**\n         * Get this `Component`s ID\n         *\n         * @return {string}\n         *         The id of this `Component`\n         */\n        id() {\n            return this.id_;\n        }\n\n        /**\n         * Get the `Component`s name. The name gets used to reference the `Component`\n         * and is set during registration.\n         *\n         * @return {string}\n         *         The name of this `Component`.\n         */\n        name() {\n            return this.name_;\n        }\n\n        /**\n         * Get an array of all child components\n         *\n         * @return {Array}\n         *         The children\n         */\n        children() {\n            return this.children_;\n        }\n\n        /**\n         * Returns the child `Component` with the given `id`.\n         *\n         * @param {string} id\n         *        The id of the child `Component` to get.\n         *\n         * @return {Component|undefined}\n         *         The child `Component` with the given `id` or undefined.\n         */\n        getChildById(id) {\n            return this.childIndex_[id];\n        }\n\n        /**\n         * Returns the child `Component` with the given `name`.\n         *\n         * @param {string} name\n         *        The name of the child `Component` to get.\n         *\n         * @return {Component|undefined}\n         *         The child `Component` with the given `name` or undefined.\n         */\n        getChild(name) {\n            if (!name) {\n                return;\n            }\n            return this.childNameIndex_[name];\n        }\n\n        /**\n         * Returns the descendant `Component` following the givent\n         * descendant `names`. For instance ['foo', 'bar', 'baz'] would\n         * try to get 'foo' on the current component, 'bar' on the 'foo'\n         * component and 'baz' on the 'bar' component and return undefined\n         * if any of those don't exist.\n         *\n         * @param {...string[]|...string} names\n         *        The name of the child `Component` to get.\n         *\n         * @return {Component|undefined}\n         *         The descendant `Component` following the given descendant\n         *         `names` or undefined.\n         */\n        getDescendant(...names) {\n            // flatten array argument into the main array\n            names = names.reduce((acc, n) => acc.concat(n), []);\n            let currentChild = this;\n            for (let i = 0; i < names.length; i++) {\n                currentChild = currentChild.getChild(names[i]);\n                if (!currentChild || !currentChild.getChild) {\n                    return;\n                }\n            }\n            return currentChild;\n        }\n\n        /**\n         * Add a child `Component` inside the current `Component`.\n         *\n         *\n         * @param {string|Component} child\n         *        The name or instance of a child to add.\n         *\n         * @param {Object} [options={}]\n         *        The key/value store of options that will get passed to children of\n         *        the child.\n         *\n         * @param {number} [index=this.children_.length]\n         *        The index to attempt to add a child into.\n         *\n         * @return {Component}\n         *         The `Component` that gets added as a child. When using a string the\n         *         `Component` will get created by this process.\n         */\n        addChild(child, options = {}, index = this.children_.length) {\n            let component;\n            let componentName;\n\n            // If child is a string, create component with options\n            if (typeof child === 'string') {\n                componentName = toTitleCase$1(child);\n                const componentClassName = options.componentClass || componentName;\n\n                // Set name through options\n                options.name = componentName;\n\n                // Create a new object & element for this controls set\n                // If there's no .player_, this is a player\n                const ComponentClass = Component$1.getComponent(componentClassName);\n                if (!ComponentClass) {\n                    throw new Error(`Component ${componentClassName} does not exist`);\n                }\n\n                // data stored directly on the videojs object may be\n                // misidentified as a component to retain\n                // backwards-compatibility with 4.x. check to make sure the\n                // component class can be instantiated.\n                if (typeof ComponentClass !== 'function') {\n                    return null;\n                }\n                component = new ComponentClass(this.player_ || this, options);\n\n                // child is a component instance\n            } else {\n                component = child;\n            }\n            if (component.parentComponent_) {\n                component.parentComponent_.removeChild(component);\n            }\n            this.children_.splice(index, 0, component);\n            component.parentComponent_ = this;\n            if (typeof component.id === 'function') {\n                this.childIndex_[component.id()] = component;\n            }\n\n            // If a name wasn't used to create the component, check if we can use the\n            // name function of the component\n            componentName = componentName || component.name && toTitleCase$1(component.name());\n            if (componentName) {\n                this.childNameIndex_[componentName] = component;\n                this.childNameIndex_[toLowerCase(componentName)] = component;\n            }\n\n            // Add the UI object's element to the container div (box)\n            // Having an element is not required\n            if (typeof component.el === 'function' && component.el()) {\n                // If inserting before a component, insert before that component's element\n                let refNode = null;\n                if (this.children_[index + 1]) {\n                    // Most children are components, but the video tech is an HTML element\n                    if (this.children_[index + 1].el_) {\n                        refNode = this.children_[index + 1].el_;\n                    } else if (isEl(this.children_[index + 1])) {\n                        refNode = this.children_[index + 1];\n                    }\n                }\n                this.contentEl().insertBefore(component.el(), refNode);\n            }\n\n            // Return so it can stored on parent object if desired.\n            return component;\n        }\n\n        /**\n         * Remove a child `Component` from this `Component`s list of children. Also removes\n         * the child `Component`s element from this `Component`s element.\n         *\n         * @param {Component} component\n         *        The child `Component` to remove.\n         */\n        removeChild(component) {\n            if (typeof component === 'string') {\n                component = this.getChild(component);\n            }\n            if (!component || !this.children_) {\n                return;\n            }\n            let childFound = false;\n            for (let i = this.children_.length - 1; i >= 0; i--) {\n                if (this.children_[i] === component) {\n                    childFound = true;\n                    this.children_.splice(i, 1);\n                    break;\n                }\n            }\n            if (!childFound) {\n                return;\n            }\n            component.parentComponent_ = null;\n            this.childIndex_[component.id()] = null;\n            this.childNameIndex_[toTitleCase$1(component.name())] = null;\n            this.childNameIndex_[toLowerCase(component.name())] = null;\n            const compEl = component.el();\n            if (compEl && compEl.parentNode === this.contentEl()) {\n                this.contentEl().removeChild(component.el());\n            }\n        }\n\n        /**\n         * Add and initialize default child `Component`s based upon options.\n         */\n        initChildren() {\n            const children = this.options_.children;\n            if (children) {\n                // `this` is `parent`\n                const parentOptions = this.options_;\n                const handleAdd = child => {\n                    const name = child.name;\n                    let opts = child.opts;\n\n                    // Allow options for children to be set at the parent options\n                    // e.g. videojs(id, { controlBar: false });\n                    // instead of videojs(id, { children: { controlBar: false });\n                    if (parentOptions[name] !== undefined) {\n                        opts = parentOptions[name];\n                    }\n\n                    // Allow for disabling default components\n                    // e.g. options['children']['posterImage'] = false\n                    if (opts === false) {\n                        return;\n                    }\n\n                    // Allow options to be passed as a simple boolean if no configuration\n                    // is necessary.\n                    if (opts === true) {\n                        opts = {};\n                    }\n\n                    // We also want to pass the original player options\n                    // to each component as well so they don't need to\n                    // reach back into the player for options later.\n                    opts.playerOptions = this.options_.playerOptions;\n\n                    // Create and add the child component.\n                    // Add a direct reference to the child by name on the parent instance.\n                    // If two of the same component are used, different names should be supplied\n                    // for each\n                    const newChild = this.addChild(name, opts);\n                    if (newChild) {\n                        this[name] = newChild;\n                    }\n                };\n\n                // Allow for an array of children details to passed in the options\n                let workingChildren;\n                const Tech = Component$1.getComponent('Tech');\n                if (Array.isArray(children)) {\n                    workingChildren = children;\n                } else {\n                    workingChildren = Object.keys(children);\n                }\n                workingChildren\n                    // children that are in this.options_ but also in workingChildren  would\n                    // give us extra children we do not want. So, we want to filter them out.\n                    .concat(Object.keys(this.options_).filter(function (child) {\n                        return !workingChildren.some(function (wchild) {\n                            if (typeof wchild === 'string') {\n                                return child === wchild;\n                            }\n                            return child === wchild.name;\n                        });\n                    })).map(child => {\n                    let name;\n                    let opts;\n                    if (typeof child === 'string') {\n                        name = child;\n                        opts = children[name] || this.options_[name] || {};\n                    } else {\n                        name = child.name;\n                        opts = child;\n                    }\n                    return {\n                        name,\n                        opts\n                    };\n                }).filter(child => {\n                    // we have to make sure that child.name isn't in the techOrder since\n                    // techs are registered as Components but can't aren't compatible\n                    // See https://github.com/videojs/video.js/issues/2772\n                    const c = Component$1.getComponent(child.opts.componentClass || toTitleCase$1(child.name));\n                    return c && !Tech.isTech(c);\n                }).forEach(handleAdd);\n            }\n        }\n\n        /**\n         * Builds the default DOM class name. Should be overridden by sub-components.\n         *\n         * @return {string}\n         *         The DOM class name for this object.\n         *\n         * @abstract\n         */\n        buildCSSClass() {\n            // Child classes can include a function that does:\n            // return 'CLASS NAME' + this._super();\n            return '';\n        }\n\n        /**\n         * Bind a listener to the component's ready state.\n         * Different from event listeners in that if the ready event has already happened\n         * it will trigger the function immediately.\n         *\n         * @param {ReadyCallback} fn\n         *        Function that gets called when the `Component` is ready.\n         *\n         * @return {Component}\n         *         Returns itself; method can be chained.\n         */\n        ready(fn, sync = false) {\n            if (!fn) {\n                return;\n            }\n            if (!this.isReady_) {\n                this.readyQueue_ = this.readyQueue_ || [];\n                this.readyQueue_.push(fn);\n                return;\n            }\n            if (sync) {\n                fn.call(this);\n            } else {\n                // Call the function asynchronously by default for consistency\n                this.setTimeout(fn, 1);\n            }\n        }\n\n        /**\n         * Trigger all the ready listeners for this `Component`.\n         *\n         * @fires Component#ready\n         */\n        triggerReady() {\n            this.isReady_ = true;\n\n            // Ensure ready is triggered asynchronously\n            this.setTimeout(function () {\n                const readyQueue = this.readyQueue_;\n\n                // Reset Ready Queue\n                this.readyQueue_ = [];\n                if (readyQueue && readyQueue.length > 0) {\n                    readyQueue.forEach(function (fn) {\n                        fn.call(this);\n                    }, this);\n                }\n\n                // Allow for using event listeners also\n                /**\n                 * Triggered when a `Component` is ready.\n                 *\n                 * @event Component#ready\n                 * @type {Event}\n                 */\n                this.trigger('ready');\n            }, 1);\n        }\n\n        /**\n         * Find a single DOM element matching a `selector`. This can be within the `Component`s\n         * `contentEl()` or another custom context.\n         *\n         * @param {string} selector\n         *        A valid CSS selector, which will be passed to `querySelector`.\n         *\n         * @param {Element|string} [context=this.contentEl()]\n         *        A DOM element within which to query. Can also be a selector string in\n         *        which case the first matching element will get used as context. If\n         *        missing `this.contentEl()` gets used. If  `this.contentEl()` returns\n         *        nothing it falls back to `document`.\n         *\n         * @return {Element|null}\n         *         the dom element that was found, or null\n         *\n         * @see [Information on CSS Selectors](https://developer.mozilla.org/en-US/docs/Web/Guide/CSS/Getting_Started/Selectors)\n         */\n        $(selector, context) {\n            return $(selector, context || this.contentEl());\n        }\n\n        /**\n         * Finds all DOM element matching a `selector`. This can be within the `Component`s\n         * `contentEl()` or another custom context.\n         *\n         * @param {string} selector\n         *        A valid CSS selector, which will be passed to `querySelectorAll`.\n         *\n         * @param {Element|string} [context=this.contentEl()]\n         *        A DOM element within which to query. Can also be a selector string in\n         *        which case the first matching element will get used as context. If\n         *        missing `this.contentEl()` gets used. If  `this.contentEl()` returns\n         *        nothing it falls back to `document`.\n         *\n         * @return {NodeList}\n         *         a list of dom elements that were found\n         *\n         * @see [Information on CSS Selectors](https://developer.mozilla.org/en-US/docs/Web/Guide/CSS/Getting_Started/Selectors)\n         */\n        $$(selector, context) {\n            return $$(selector, context || this.contentEl());\n        }\n\n        /**\n         * Check if a component's element has a CSS class name.\n         *\n         * @param {string} classToCheck\n         *        CSS class name to check.\n         *\n         * @return {boolean}\n         *         - True if the `Component` has the class.\n         *         - False if the `Component` does not have the class`\n         */\n        hasClass(classToCheck) {\n            return hasClass(this.el_, classToCheck);\n        }\n\n        /**\n         * Add a CSS class name to the `Component`s element.\n         *\n         * @param {...string} classesToAdd\n         *        One or more CSS class name to add.\n         */\n        addClass(...classesToAdd) {\n            addClass(this.el_, ...classesToAdd);\n        }\n\n        /**\n         * Remove a CSS class name from the `Component`s element.\n         *\n         * @param {...string} classesToRemove\n         *        One or more CSS class name to remove.\n         */\n        removeClass(...classesToRemove) {\n            removeClass(this.el_, ...classesToRemove);\n        }\n\n        /**\n         * Add or remove a CSS class name from the component's element.\n         * - `classToToggle` gets added when {@link Component#hasClass} would return false.\n         * - `classToToggle` gets removed when {@link Component#hasClass} would return true.\n         *\n         * @param  {string} classToToggle\n         *         The class to add or remove based on (@link Component#hasClass}\n         *\n         * @param  {boolean|Dom~predicate} [predicate]\n         *         An {@link Dom~predicate} function or a boolean\n         */\n        toggleClass(classToToggle, predicate) {\n            toggleClass(this.el_, classToToggle, predicate);\n        }\n\n        /**\n         * Show the `Component`s element if it is hidden by removing the\n         * 'vjs-hidden' class name from it.\n         */\n        show() {\n            this.removeClass('vjs-hidden');\n        }\n\n        /**\n         * Hide the `Component`s element if it is currently showing by adding the\n         * 'vjs-hidden` class name to it.\n         */\n        hide() {\n            this.addClass('vjs-hidden');\n        }\n\n        /**\n         * Lock a `Component`s element in its visible state by adding the 'vjs-lock-showing'\n         * class name to it. Used during fadeIn/fadeOut.\n         *\n         * @private\n         */\n        lockShowing() {\n            this.addClass('vjs-lock-showing');\n        }\n\n        /**\n         * Unlock a `Component`s element from its visible state by removing the 'vjs-lock-showing'\n         * class name from it. Used during fadeIn/fadeOut.\n         *\n         * @private\n         */\n        unlockShowing() {\n            this.removeClass('vjs-lock-showing');\n        }\n\n        /**\n         * Get the value of an attribute on the `Component`s element.\n         *\n         * @param {string} attribute\n         *        Name of the attribute to get the value from.\n         *\n         * @return {string|null}\n         *         - The value of the attribute that was asked for.\n         *         - Can be an empty string on some browsers if the attribute does not exist\n         *           or has no value\n         *         - Most browsers will return null if the attribute does not exist or has\n         *           no value.\n         *\n         * @see [DOM API]{@link https://developer.mozilla.org/en-US/docs/Web/API/Element/getAttribute}\n         */\n        getAttribute(attribute) {\n            return getAttribute(this.el_, attribute);\n        }\n\n        /**\n         * Set the value of an attribute on the `Component`'s element\n         *\n         * @param {string} attribute\n         *        Name of the attribute to set.\n         *\n         * @param {string} value\n         *        Value to set the attribute to.\n         *\n         * @see [DOM API]{@link https://developer.mozilla.org/en-US/docs/Web/API/Element/setAttribute}\n         */\n        setAttribute(attribute, value) {\n            setAttribute(this.el_, attribute, value);\n        }\n\n        /**\n         * Remove an attribute from the `Component`s element.\n         *\n         * @param {string} attribute\n         *        Name of the attribute to remove.\n         *\n         * @see [DOM API]{@link https://developer.mozilla.org/en-US/docs/Web/API/Element/removeAttribute}\n         */\n        removeAttribute(attribute) {\n            removeAttribute(this.el_, attribute);\n        }\n\n        /**\n         * Get or set the width of the component based upon the CSS styles.\n         * See {@link Component#dimension} for more detailed information.\n         *\n         * @param {number|string} [num]\n         *        The width that you want to set postfixed with '%', 'px' or nothing.\n         *\n         * @param {boolean} [skipListeners]\n         *        Skip the componentresize event trigger\n         *\n         * @return {number|string}\n         *         The width when getting, zero if there is no width. Can be a string\n         *           postpixed with '%' or 'px'.\n         */\n        width(num, skipListeners) {\n            return this.dimension('width', num, skipListeners);\n        }\n\n        /**\n         * Get or set the height of the component based upon the CSS styles.\n         * See {@link Component#dimension} for more detailed information.\n         *\n         * @param {number|string} [num]\n         *        The height that you want to set postfixed with '%', 'px' or nothing.\n         *\n         * @param {boolean} [skipListeners]\n         *        Skip the componentresize event trigger\n         *\n         * @return {number|string}\n         *         The width when getting, zero if there is no width. Can be a string\n         *         postpixed with '%' or 'px'.\n         */\n        height(num, skipListeners) {\n            return this.dimension('height', num, skipListeners);\n        }\n\n        /**\n         * Set both the width and height of the `Component` element at the same time.\n         *\n         * @param  {number|string} width\n         *         Width to set the `Component`s element to.\n         *\n         * @param  {number|string} height\n         *         Height to set the `Component`s element to.\n         */\n        dimensions(width, height) {\n            // Skip componentresize listeners on width for optimization\n            this.width(width, true);\n            this.height(height);\n        }\n\n        /**\n         * Get or set width or height of the `Component` element. This is the shared code\n         * for the {@link Component#width} and {@link Component#height}.\n         *\n         * Things to know:\n         * - If the width or height in an number this will return the number postfixed with 'px'.\n         * - If the width/height is a percent this will return the percent postfixed with '%'\n         * - Hidden elements have a width of 0 with `window.getComputedStyle`. This function\n         *   defaults to the `Component`s `style.width` and falls back to `window.getComputedStyle`.\n         *   See [this]{@link http://www.foliotek.com/devblog/getting-the-width-of-a-hidden-element-with-jquery-using-width/}\n         *   for more information\n         * - If you want the computed style of the component, use {@link Component#currentWidth}\n         *   and {@link {Component#currentHeight}\n         *\n         * @fires Component#componentresize\n         *\n         * @param {string} widthOrHeight\n         8        'width' or 'height'\n         *\n         * @param  {number|string} [num]\n         8         New dimension\n         *\n         * @param  {boolean} [skipListeners]\n         *         Skip componentresize event trigger\n         *\n         * @return {number}\n         *         The dimension when getting or 0 if unset\n         */\n        dimension(widthOrHeight, num, skipListeners) {\n            if (num !== undefined) {\n                // Set to zero if null or literally NaN (NaN !== NaN)\n                if (num === null || num !== num) {\n                    num = 0;\n                }\n\n                // Check if using css width/height (% or px) and adjust\n                if (('' + num).indexOf('%') !== -1 || ('' + num).indexOf('px') !== -1) {\n                    this.el_.style[widthOrHeight] = num;\n                } else if (num === 'auto') {\n                    this.el_.style[widthOrHeight] = '';\n                } else {\n                    this.el_.style[widthOrHeight] = num + 'px';\n                }\n\n                // skipListeners allows us to avoid triggering the resize event when setting both width and height\n                if (!skipListeners) {\n                    /**\n                     * Triggered when a component is resized.\n                     *\n                     * @event Component#componentresize\n                     * @type {Event}\n                     */\n                    this.trigger('componentresize');\n                }\n                return;\n            }\n\n            // Not setting a value, so getting it\n            // Make sure element exists\n            if (!this.el_) {\n                return 0;\n            }\n\n            // Get dimension value from style\n            const val = this.el_.style[widthOrHeight];\n            const pxIndex = val.indexOf('px');\n            if (pxIndex !== -1) {\n                // Return the pixel value with no 'px'\n                return parseInt(val.slice(0, pxIndex), 10);\n            }\n\n            // No px so using % or no style was set, so falling back to offsetWidth/height\n            // If component has display:none, offset will return 0\n            // TODO: handle display:none and no dimension style using px\n            return parseInt(this.el_['offset' + toTitleCase$1(widthOrHeight)], 10);\n        }\n\n        /**\n         * Get the computed width or the height of the component's element.\n         *\n         * Uses `window.getComputedStyle`.\n         *\n         * @param {string} widthOrHeight\n         *        A string containing 'width' or 'height'. Whichever one you want to get.\n         *\n         * @return {number}\n         *         The dimension that gets asked for or 0 if nothing was set\n         *         for that dimension.\n         */\n        currentDimension(widthOrHeight) {\n            let computedWidthOrHeight = 0;\n            if (widthOrHeight !== 'width' && widthOrHeight !== 'height') {\n                throw new Error('currentDimension only accepts width or height value');\n            }\n            computedWidthOrHeight = computedStyle(this.el_, widthOrHeight);\n\n            // remove 'px' from variable and parse as integer\n            computedWidthOrHeight = parseFloat(computedWidthOrHeight);\n\n            // if the computed value is still 0, it's possible that the browser is lying\n            // and we want to check the offset values.\n            // This code also runs wherever getComputedStyle doesn't exist.\n            if (computedWidthOrHeight === 0 || isNaN(computedWidthOrHeight)) {\n                const rule = `offset${toTitleCase$1(widthOrHeight)}`;\n                computedWidthOrHeight = this.el_[rule];\n            }\n            return computedWidthOrHeight;\n        }\n\n        /**\n         * An object that contains width and height values of the `Component`s\n         * computed style. Uses `window.getComputedStyle`.\n         *\n         * @typedef {Object} Component~DimensionObject\n         *\n         * @property {number} width\n         *           The width of the `Component`s computed style.\n         *\n         * @property {number} height\n         *           The height of the `Component`s computed style.\n         */\n\n        /**\n         * Get an object that contains computed width and height values of the\n         * component's element.\n         *\n         * Uses `window.getComputedStyle`.\n         *\n         * @return {Component~DimensionObject}\n         *         The computed dimensions of the component's element.\n         */\n        currentDimensions() {\n            return {\n                width: this.currentDimension('width'),\n                height: this.currentDimension('height')\n            };\n        }\n\n        /**\n         * Get the computed width of the component's element.\n         *\n         * Uses `window.getComputedStyle`.\n         *\n         * @return {number}\n         *         The computed width of the component's element.\n         */\n        currentWidth() {\n            return this.currentDimension('width');\n        }\n\n        /**\n         * Get the computed height of the component's element.\n         *\n         * Uses `window.getComputedStyle`.\n         *\n         * @return {number}\n         *         The computed height of the component's element.\n         */\n        currentHeight() {\n            return this.currentDimension('height');\n        }\n\n        /**\n         * Set the focus to this component\n         */\n        focus() {\n            this.el_.focus();\n        }\n\n        /**\n         * Remove the focus from this component\n         */\n        blur() {\n            this.el_.blur();\n        }\n\n        /**\n         * When this Component receives a `keydown` event which it does not process,\n         *  it passes the event to the Player for handling.\n         *\n         * @param {KeyboardEvent} event\n         *        The `keydown` event that caused this function to be called.\n         */\n        handleKeyDown(event) {\n            if (this.player_) {\n                // We only stop propagation here because we want unhandled events to fall\n                // back to the browser. Exclude Tab for focus trapping.\n                if (!keycode.isEventKey(event, 'Tab')) {\n                    event.stopPropagation();\n                }\n                this.player_.handleKeyDown(event);\n            }\n        }\n\n        /**\n         * Many components used to have a `handleKeyPress` method, which was poorly\n         * named because it listened to a `keydown` event. This method name now\n         * delegates to `handleKeyDown`. This means anyone calling `handleKeyPress`\n         * will not see their method calls stop working.\n         *\n         * @param {Event} event\n         *        The event that caused this function to be called.\n         */\n        handleKeyPress(event) {\n            this.handleKeyDown(event);\n        }\n\n        /**\n         * Emit a 'tap' events when touch event support gets detected. This gets used to\n         * support toggling the controls through a tap on the video. They get enabled\n         * because every sub-component would have extra overhead otherwise.\n         *\n         * @private\n         * @fires Component#tap\n         * @listens Component#touchstart\n         * @listens Component#touchmove\n         * @listens Component#touchleave\n         * @listens Component#touchcancel\n         * @listens Component#touchend\n         */\n        emitTapEvents() {\n            // Track the start time so we can determine how long the touch lasted\n            let touchStart = 0;\n            let firstTouch = null;\n\n            // Maximum movement allowed during a touch event to still be considered a tap\n            // Other popular libs use anywhere from 2 (hammer.js) to 15,\n            // so 10 seems like a nice, round number.\n            const tapMovementThreshold = 10;\n\n            // The maximum length a touch can be while still being considered a tap\n            const touchTimeThreshold = 200;\n            let couldBeTap;\n            this.on('touchstart', function (event) {\n                // If more than one finger, don't consider treating this as a click\n                if (event.touches.length === 1) {\n                    // Copy pageX/pageY from the object\n                    firstTouch = {\n                        pageX: event.touches[0].pageX,\n                        pageY: event.touches[0].pageY\n                    };\n                    // Record start time so we can detect a tap vs. \"touch and hold\"\n                    touchStart = window.performance.now();\n                    // Reset couldBeTap tracking\n                    couldBeTap = true;\n                }\n            });\n            this.on('touchmove', function (event) {\n                // If more than one finger, don't consider treating this as a click\n                if (event.touches.length > 1) {\n                    couldBeTap = false;\n                } else if (firstTouch) {\n                    // Some devices will throw touchmoves for all but the slightest of taps.\n                    // So, if we moved only a small distance, this could still be a tap\n                    const xdiff = event.touches[0].pageX - firstTouch.pageX;\n                    const ydiff = event.touches[0].pageY - firstTouch.pageY;\n                    const touchDistance = Math.sqrt(xdiff * xdiff + ydiff * ydiff);\n                    if (touchDistance > tapMovementThreshold) {\n                        couldBeTap = false;\n                    }\n                }\n            });\n            const noTap = function () {\n                couldBeTap = false;\n            };\n\n            // TODO: Listen to the original target. http://youtu.be/DujfpXOKUp8?t=13m8s\n            this.on('touchleave', noTap);\n            this.on('touchcancel', noTap);\n\n            // When the touch ends, measure how long it took and trigger the appropriate\n            // event\n            this.on('touchend', function (event) {\n                firstTouch = null;\n                // Proceed only if the touchmove/leave/cancel event didn't happen\n                if (couldBeTap === true) {\n                    // Measure how long the touch lasted\n                    const touchTime = window.performance.now() - touchStart;\n\n                    // Make sure the touch was less than the threshold to be considered a tap\n                    if (touchTime < touchTimeThreshold) {\n                        // Don't let browser turn this into a click\n                        event.preventDefault();\n                        /**\n                         * Triggered when a `Component` is tapped.\n                         *\n                         * @event Component#tap\n                         * @type {MouseEvent}\n                         */\n                        this.trigger('tap');\n                        // It may be good to copy the touchend event object and change the\n                        // type to tap, if the other event properties aren't exact after\n                        // Events.fixEvent runs (e.g. event.target)\n                    }\n                }\n            });\n        }\n\n        /**\n         * This function reports user activity whenever touch events happen. This can get\n         * turned off by any sub-components that wants touch events to act another way.\n         *\n         * Report user touch activity when touch events occur. User activity gets used to\n         * determine when controls should show/hide. It is simple when it comes to mouse\n         * events, because any mouse event should show the controls. So we capture mouse\n         * events that bubble up to the player and report activity when that happens.\n         * With touch events it isn't as easy as `touchstart` and `touchend` toggle player\n         * controls. So touch events can't help us at the player level either.\n         *\n         * User activity gets checked asynchronously. So what could happen is a tap event\n         * on the video turns the controls off. Then the `touchend` event bubbles up to\n         * the player. Which, if it reported user activity, would turn the controls right\n         * back on. We also don't want to completely block touch events from bubbling up.\n         * Furthermore a `touchmove` event and anything other than a tap, should not turn\n         * controls back on.\n         *\n         * @listens Component#touchstart\n         * @listens Component#touchmove\n         * @listens Component#touchend\n         * @listens Component#touchcancel\n         */\n        enableTouchActivity() {\n            // Don't continue if the root player doesn't support reporting user activity\n            if (!this.player() || !this.player().reportUserActivity) {\n                return;\n            }\n\n            // listener for reporting that the user is active\n            const report = bind_(this.player(), this.player().reportUserActivity);\n            let touchHolding;\n            this.on('touchstart', function () {\n                report();\n                // For as long as the they are touching the device or have their mouse down,\n                // we consider them active even if they're not moving their finger or mouse.\n                // So we want to continue to update that they are active\n                this.clearInterval(touchHolding);\n                // report at the same interval as activityCheck\n                touchHolding = this.setInterval(report, 250);\n            });\n            const touchEnd = function (event) {\n                report();\n                // stop the interval that maintains activity if the touch is holding\n                this.clearInterval(touchHolding);\n            };\n            this.on('touchmove', report);\n            this.on('touchend', touchEnd);\n            this.on('touchcancel', touchEnd);\n        }\n\n        /**\n         * A callback that has no parameters and is bound into `Component`s context.\n         *\n         * @callback Component~GenericCallback\n         * @this Component\n         */\n\n        /**\n         * Creates a function that runs after an `x` millisecond timeout. This function is a\n         * wrapper around `window.setTimeout`. There are a few reasons to use this one\n         * instead though:\n         * 1. It gets cleared via  {@link Component#clearTimeout} when\n         *    {@link Component#dispose} gets called.\n         * 2. The function callback will gets turned into a {@link Component~GenericCallback}\n         *\n         * > Note: You can't use `window.clearTimeout` on the id returned by this function. This\n         *         will cause its dispose listener not to get cleaned up! Please use\n         *         {@link Component#clearTimeout} or {@link Component#dispose} instead.\n         *\n         * @param {Component~GenericCallback} fn\n         *        The function that will be run after `timeout`.\n         *\n         * @param {number} timeout\n         *        Timeout in milliseconds to delay before executing the specified function.\n         *\n         * @return {number}\n         *         Returns a timeout ID that gets used to identify the timeout. It can also\n         *         get used in {@link Component#clearTimeout} to clear the timeout that\n         *         was set.\n         *\n         * @listens Component#dispose\n         * @see [Similar to]{@link https://developer.mozilla.org/en-US/docs/Web/API/WindowTimers/setTimeout}\n         */\n        setTimeout(fn, timeout) {\n            // declare as variables so they are properly available in timeout function\n            // eslint-disable-next-line\n            var timeoutId;\n            fn = bind_(this, fn);\n            this.clearTimersOnDispose_();\n            timeoutId = window.setTimeout(() => {\n                if (this.setTimeoutIds_.has(timeoutId)) {\n                    this.setTimeoutIds_.delete(timeoutId);\n                }\n                fn();\n            }, timeout);\n            this.setTimeoutIds_.add(timeoutId);\n            return timeoutId;\n        }\n\n        /**\n         * Clears a timeout that gets created via `window.setTimeout` or\n         * {@link Component#setTimeout}. If you set a timeout via {@link Component#setTimeout}\n         * use this function instead of `window.clearTimout`. If you don't your dispose\n         * listener will not get cleaned up until {@link Component#dispose}!\n         *\n         * @param {number} timeoutId\n         *        The id of the timeout to clear. The return value of\n         *        {@link Component#setTimeout} or `window.setTimeout`.\n         *\n         * @return {number}\n         *         Returns the timeout id that was cleared.\n         *\n         * @see [Similar to]{@link https://developer.mozilla.org/en-US/docs/Web/API/WindowTimers/clearTimeout}\n         */\n        clearTimeout(timeoutId) {\n            if (this.setTimeoutIds_.has(timeoutId)) {\n                this.setTimeoutIds_.delete(timeoutId);\n                window.clearTimeout(timeoutId);\n            }\n            return timeoutId;\n        }\n\n        /**\n         * Creates a function that gets run every `x` milliseconds. This function is a wrapper\n         * around `window.setInterval`. There are a few reasons to use this one instead though.\n         * 1. It gets cleared via  {@link Component#clearInterval} when\n         *    {@link Component#dispose} gets called.\n         * 2. The function callback will be a {@link Component~GenericCallback}\n         *\n         * @param {Component~GenericCallback} fn\n         *        The function to run every `x` seconds.\n         *\n         * @param {number} interval\n         *        Execute the specified function every `x` milliseconds.\n         *\n         * @return {number}\n         *         Returns an id that can be used to identify the interval. It can also be be used in\n         *         {@link Component#clearInterval} to clear the interval.\n         *\n         * @listens Component#dispose\n         * @see [Similar to]{@link https://developer.mozilla.org/en-US/docs/Web/API/WindowTimers/setInterval}\n         */\n        setInterval(fn, interval) {\n            fn = bind_(this, fn);\n            this.clearTimersOnDispose_();\n            const intervalId = window.setInterval(fn, interval);\n            this.setIntervalIds_.add(intervalId);\n            return intervalId;\n        }\n\n        /**\n         * Clears an interval that gets created via `window.setInterval` or\n         * {@link Component#setInterval}. If you set an interval via {@link Component#setInterval}\n         * use this function instead of `window.clearInterval`. If you don't your dispose\n         * listener will not get cleaned up until {@link Component#dispose}!\n         *\n         * @param {number} intervalId\n         *        The id of the interval to clear. The return value of\n         *        {@link Component#setInterval} or `window.setInterval`.\n         *\n         * @return {number}\n         *         Returns the interval id that was cleared.\n         *\n         * @see [Similar to]{@link https://developer.mozilla.org/en-US/docs/Web/API/WindowTimers/clearInterval}\n         */\n        clearInterval(intervalId) {\n            if (this.setIntervalIds_.has(intervalId)) {\n                this.setIntervalIds_.delete(intervalId);\n                window.clearInterval(intervalId);\n            }\n            return intervalId;\n        }\n\n        /**\n         * Queues up a callback to be passed to requestAnimationFrame (rAF), but\n         * with a few extra bonuses:\n         *\n         * - Supports browsers that do not support rAF by falling back to\n         *   {@link Component#setTimeout}.\n         *\n         * - The callback is turned into a {@link Component~GenericCallback} (i.e.\n         *   bound to the component).\n         *\n         * - Automatic cancellation of the rAF callback is handled if the component\n         *   is disposed before it is called.\n         *\n         * @param  {Component~GenericCallback} fn\n         *         A function that will be bound to this component and executed just\n         *         before the browser's next repaint.\n         *\n         * @return {number}\n         *         Returns an rAF ID that gets used to identify the timeout. It can\n         *         also be used in {@link Component#cancelAnimationFrame} to cancel\n         *         the animation frame callback.\n         *\n         * @listens Component#dispose\n         * @see [Similar to]{@link https://developer.mozilla.org/en-US/docs/Web/API/window/requestAnimationFrame}\n         */\n        requestAnimationFrame(fn) {\n            this.clearTimersOnDispose_();\n\n            // declare as variables so they are properly available in rAF function\n            // eslint-disable-next-line\n            var id;\n            fn = bind_(this, fn);\n            id = window.requestAnimationFrame(() => {\n                if (this.rafIds_.has(id)) {\n                    this.rafIds_.delete(id);\n                }\n                fn();\n            });\n            this.rafIds_.add(id);\n            return id;\n        }\n\n        /**\n         * Request an animation frame, but only one named animation\n         * frame will be queued. Another will never be added until\n         * the previous one finishes.\n         *\n         * @param {string} name\n         *        The name to give this requestAnimationFrame\n         *\n         * @param  {Component~GenericCallback} fn\n         *         A function that will be bound to this component and executed just\n         *         before the browser's next repaint.\n         */\n        requestNamedAnimationFrame(name, fn) {\n            if (this.namedRafs_.has(name)) {\n                return;\n            }\n            this.clearTimersOnDispose_();\n            fn = bind_(this, fn);\n            const id = this.requestAnimationFrame(() => {\n                fn();\n                if (this.namedRafs_.has(name)) {\n                    this.namedRafs_.delete(name);\n                }\n            });\n            this.namedRafs_.set(name, id);\n            return name;\n        }\n\n        /**\n         * Cancels a current named animation frame if it exists.\n         *\n         * @param {string} name\n         *        The name of the requestAnimationFrame to cancel.\n         */\n        cancelNamedAnimationFrame(name) {\n            if (!this.namedRafs_.has(name)) {\n                return;\n            }\n            this.cancelAnimationFrame(this.namedRafs_.get(name));\n            this.namedRafs_.delete(name);\n        }\n\n        /**\n         * Cancels a queued callback passed to {@link Component#requestAnimationFrame}\n         * (rAF).\n         *\n         * If you queue an rAF callback via {@link Component#requestAnimationFrame},\n         * use this function instead of `window.cancelAnimationFrame`. If you don't,\n         * your dispose listener will not get cleaned up until {@link Component#dispose}!\n         *\n         * @param {number} id\n         *        The rAF ID to clear. The return value of {@link Component#requestAnimationFrame}.\n         *\n         * @return {number}\n         *         Returns the rAF ID that was cleared.\n         *\n         * @see [Similar to]{@link https://developer.mozilla.org/en-US/docs/Web/API/window/cancelAnimationFrame}\n         */\n        cancelAnimationFrame(id) {\n            if (this.rafIds_.has(id)) {\n                this.rafIds_.delete(id);\n                window.cancelAnimationFrame(id);\n            }\n            return id;\n        }\n\n        /**\n         * A function to setup `requestAnimationFrame`, `setTimeout`,\n         * and `setInterval`, clearing on dispose.\n         *\n         * > Previously each timer added and removed dispose listeners on it's own.\n         * For better performance it was decided to batch them all, and use `Set`s\n         * to track outstanding timer ids.\n         *\n         * @private\n         */\n        clearTimersOnDispose_() {\n            if (this.clearingTimersOnDispose_) {\n                return;\n            }\n            this.clearingTimersOnDispose_ = true;\n            this.one('dispose', () => {\n                [['namedRafs_', 'cancelNamedAnimationFrame'], ['rafIds_', 'cancelAnimationFrame'], ['setTimeoutIds_', 'clearTimeout'], ['setIntervalIds_', 'clearInterval']].forEach(([idName, cancelName]) => {\n                    // for a `Set` key will actually be the value again\n                    // so forEach((val, val) =>` but for maps we want to use\n                    // the key.\n                    this[idName].forEach((val, key) => this[cancelName](key));\n                });\n                this.clearingTimersOnDispose_ = false;\n            });\n        }\n\n        /**\n         * Register a `Component` with `videojs` given the name and the component.\n         *\n         * > NOTE: {@link Tech}s should not be registered as a `Component`. {@link Tech}s\n         *         should be registered using {@link Tech.registerTech} or\n         *         {@link videojs:videojs.registerTech}.\n         *\n         * > NOTE: This function can also be seen on videojs as\n         *         {@link videojs:videojs.registerComponent}.\n         *\n         * @param {string} name\n         *        The name of the `Component` to register.\n         *\n         * @param {Component} ComponentToRegister\n         *        The `Component` class to register.\n         *\n         * @return {Component}\n         *         The `Component` that was registered.\n         */\n        static registerComponent(name, ComponentToRegister) {\n            if (typeof name !== 'string' || !name) {\n                throw new Error(`Illegal component name, \"${name}\"; must be a non-empty string.`);\n            }\n            const Tech = Component$1.getComponent('Tech');\n\n            // We need to make sure this check is only done if Tech has been registered.\n            const isTech = Tech && Tech.isTech(ComponentToRegister);\n            const isComp = Component$1 === ComponentToRegister || Component$1.prototype.isPrototypeOf(ComponentToRegister.prototype);\n            if (isTech || !isComp) {\n                let reason;\n                if (isTech) {\n                    reason = 'techs must be registered using Tech.registerTech()';\n                } else {\n                    reason = 'must be a Component subclass';\n                }\n                throw new Error(`Illegal component, \"${name}\"; ${reason}.`);\n            }\n            name = toTitleCase$1(name);\n            if (!Component$1.components_) {\n                Component$1.components_ = {};\n            }\n            const Player = Component$1.getComponent('Player');\n            if (name === 'Player' && Player && Player.players) {\n                const players = Player.players;\n                const playerNames = Object.keys(players);\n\n                // If we have players that were disposed, then their name will still be\n                // in Players.players. So, we must loop through and verify that the value\n                // for each item is not null. This allows registration of the Player component\n                // after all players have been disposed or before any were created.\n                if (players && playerNames.length > 0 && playerNames.map(pname => players[pname]).every(Boolean)) {\n                    throw new Error('Can not register Player component after player has been created.');\n                }\n            }\n            Component$1.components_[name] = ComponentToRegister;\n            Component$1.components_[toLowerCase(name)] = ComponentToRegister;\n            return ComponentToRegister;\n        }\n\n        /**\n         * Get a `Component` based on the name it was registered with.\n         *\n         * @param {string} name\n         *        The Name of the component to get.\n         *\n         * @return {Component}\n         *         The `Component` that got registered under the given name.\n         */\n        static getComponent(name) {\n            if (!name || !Component$1.components_) {\n                return;\n            }\n            return Component$1.components_[name];\n        }\n    }\n    Component$1.registerComponent('Component', Component$1);\n\n    /**\n     * @file time.js\n     * @module time\n     */\n\n    /**\n     * Returns the time for the specified index at the start or end\n     * of a TimeRange object.\n     *\n     * @typedef    {Function} TimeRangeIndex\n     *\n     * @param      {number} [index=0]\n     *             The range number to return the time for.\n     *\n     * @return     {number}\n     *             The time offset at the specified index.\n     *\n     * @deprecated The index argument must be provided.\n     *             In the future, leaving it out will throw an error.\n     */\n\n    /**\n     * An object that contains ranges of time, which mimics {@link TimeRanges}.\n     *\n     * @typedef  {Object} TimeRange\n     *\n     * @property {number} length\n     *           The number of time ranges represented by this object.\n     *\n     * @property {module:time~TimeRangeIndex} start\n     *           Returns the time offset at which a specified time range begins.\n     *\n     * @property {module:time~TimeRangeIndex} end\n     *           Returns the time offset at which a specified time range ends.\n     *\n     * @see https://developer.mozilla.org/en-US/docs/Web/API/TimeRanges\n     */\n\n    /**\n     * Check if any of the time ranges are over the maximum index.\n     *\n     * @private\n     * @param   {string} fnName\n     *          The function name to use for logging\n     *\n     * @param   {number} index\n     *          The index to check\n     *\n     * @param   {number} maxIndex\n     *          The maximum possible index\n     *\n     * @throws  {Error} if the timeRanges provided are over the maxIndex\n     */\n    function rangeCheck(fnName, index, maxIndex) {\n        if (typeof index !== 'number' || index < 0 || index > maxIndex) {\n            throw new Error(`Failed to execute '${fnName}' on 'TimeRanges': The index provided (${index}) is non-numeric or out of bounds (0-${maxIndex}).`);\n        }\n    }\n\n    /**\n     * Get the time for the specified index at the start or end\n     * of a TimeRange object.\n     *\n     * @private\n     * @param      {string} fnName\n     *             The function name to use for logging\n     *\n     * @param      {string} valueIndex\n     *             The property that should be used to get the time. should be\n     *             'start' or 'end'\n     *\n     * @param      {Array} ranges\n     *             An array of time ranges\n     *\n     * @param      {Array} [rangeIndex=0]\n     *             The index to start the search at\n     *\n     * @return     {number}\n     *             The time that offset at the specified index.\n     *\n     * @deprecated rangeIndex must be set to a value, in the future this will throw an error.\n     * @throws     {Error} if rangeIndex is more than the length of ranges\n     */\n    function getRange(fnName, valueIndex, ranges, rangeIndex) {\n        rangeCheck(fnName, rangeIndex, ranges.length - 1);\n        return ranges[rangeIndex][valueIndex];\n    }\n\n    /**\n     * Create a time range object given ranges of time.\n     *\n     * @private\n     * @param   {Array} [ranges]\n     *          An array of time ranges.\n     *\n     * @return  {TimeRange}\n     */\n    function createTimeRangesObj(ranges) {\n        let timeRangesObj;\n        if (ranges === undefined || ranges.length === 0) {\n            timeRangesObj = {\n                length: 0,\n                start() {\n                    throw new Error('This TimeRanges object is empty');\n                },\n                end() {\n                    throw new Error('This TimeRanges object is empty');\n                }\n            };\n        } else {\n            timeRangesObj = {\n                length: ranges.length,\n                start: getRange.bind(null, 'start', 0, ranges),\n                end: getRange.bind(null, 'end', 1, ranges)\n            };\n        }\n        if (window.Symbol && window.Symbol.iterator) {\n            timeRangesObj[window.Symbol.iterator] = () => (ranges || []).values();\n        }\n        return timeRangesObj;\n    }\n\n    /**\n     * Create a `TimeRange` object which mimics an\n     * {@link https://developer.mozilla.org/en-US/docs/Web/API/TimeRanges|HTML5 TimeRanges instance}.\n     *\n     * @param {number|Array[]} start\n     *        The start of a single range (a number) or an array of ranges (an\n     *        array of arrays of two numbers each).\n     *\n     * @param {number} end\n     *        The end of a single range. Cannot be used with the array form of\n     *        the `start` argument.\n     *\n     * @return {TimeRange}\n     */\n    function createTimeRanges$1(start, end) {\n        if (Array.isArray(start)) {\n            return createTimeRangesObj(start);\n        } else if (start === undefined || end === undefined) {\n            return createTimeRangesObj();\n        }\n        return createTimeRangesObj([[start, end]]);\n    }\n\n    /**\n     * Format seconds as a time string, H:MM:SS or M:SS. Supplying a guide (in\n     * seconds) will force a number of leading zeros to cover the length of the\n     * guide.\n     *\n     * @private\n     * @param  {number} seconds\n     *         Number of seconds to be turned into a string\n     *\n     * @param  {number} guide\n     *         Number (in seconds) to model the string after\n     *\n     * @return {string}\n     *         Time formatted as H:MM:SS or M:SS\n     */\n    const defaultImplementation = function (seconds, guide) {\n        seconds = seconds < 0 ? 0 : seconds;\n        let s = Math.floor(seconds % 60);\n        let m = Math.floor(seconds / 60 % 60);\n        let h = Math.floor(seconds / 3600);\n        const gm = Math.floor(guide / 60 % 60);\n        const gh = Math.floor(guide / 3600);\n\n        // handle invalid times\n        if (isNaN(seconds) || seconds === Infinity) {\n            // '-' is false for all relational operators (e.g. <, >=) so this setting\n            // will add the minimum number of fields specified by the guide\n            h = m = s = '-';\n        }\n\n        // Check if we need to show hours\n        h = h > 0 || gh > 0 ? h + ':' : '';\n\n        // If hours are showing, we may need to add a leading zero.\n        // Always show at least one digit of minutes.\n        m = ((h || gm >= 10) && m < 10 ? '0' + m : m) + ':';\n\n        // Check if leading zero is need for seconds\n        s = s < 10 ? '0' + s : s;\n        return h + m + s;\n    };\n\n    // Internal pointer to the current implementation.\n    let implementation = defaultImplementation;\n\n    /**\n     * Replaces the default formatTime implementation with a custom implementation.\n     *\n     * @param {Function} customImplementation\n     *        A function which will be used in place of the default formatTime\n     *        implementation. Will receive the current time in seconds and the\n     *        guide (in seconds) as arguments.\n     */\n    function setFormatTime(customImplementation) {\n        implementation = customImplementation;\n    }\n\n    /**\n     * Resets formatTime to the default implementation.\n     */\n    function resetFormatTime() {\n        implementation = defaultImplementation;\n    }\n\n    /**\n     * Delegates to either the default time formatting function or a custom\n     * function supplied via `setFormatTime`.\n     *\n     * Formats seconds as a time string (H:MM:SS or M:SS). Supplying a\n     * guide (in seconds) will force a number of leading zeros to cover the\n     * length of the guide.\n     *\n     * @example  formatTime(125, 600) === \"02:05\"\n     * @param    {number} seconds\n     *           Number of seconds to be turned into a string\n     *\n     * @param    {number} guide\n     *           Number (in seconds) to model the string after\n     *\n     * @return   {string}\n     *           Time formatted as H:MM:SS or M:SS\n     */\n    function formatTime(seconds, guide = seconds) {\n        return implementation(seconds, guide);\n    }\n\n    var Time = /*#__PURE__*/Object.freeze({\n        __proto__: null,\n        createTimeRanges: createTimeRanges$1,\n        createTimeRange: createTimeRanges$1,\n        setFormatTime: setFormatTime,\n        resetFormatTime: resetFormatTime,\n        formatTime: formatTime\n    });\n\n    /**\n     * @file buffer.js\n     * @module buffer\n     */\n\n    /**\n     * Compute the percentage of the media that has been buffered.\n     *\n     * @param { import('./time').TimeRange } buffered\n     *        The current `TimeRanges` object representing buffered time ranges\n     *\n     * @param {number} duration\n     *        Total duration of the media\n     *\n     * @return {number}\n     *         Percent buffered of the total duration in decimal form.\n     */\n    function bufferedPercent(buffered, duration) {\n        let bufferedDuration = 0;\n        let start;\n        let end;\n        if (!duration) {\n            return 0;\n        }\n        if (!buffered || !buffered.length) {\n            buffered = createTimeRanges$1(0, 0);\n        }\n        for (let i = 0; i < buffered.length; i++) {\n            start = buffered.start(i);\n            end = buffered.end(i);\n\n            // buffered end can be bigger than duration by a very small fraction\n            if (end > duration) {\n                end = duration;\n            }\n            bufferedDuration += end - start;\n        }\n        return bufferedDuration / duration;\n    }\n\n    /**\n     * @file media-error.js\n     */\n\n    /**\n     * A Custom `MediaError` class which mimics the standard HTML5 `MediaError` class.\n     *\n     * @param {number|string|Object|MediaError} value\n     *        This can be of multiple types:\n     *        - number: should be a standard error code\n     *        - string: an error message (the code will be 0)\n     *        - Object: arbitrary properties\n     *        - `MediaError` (native): used to populate a video.js `MediaError` object\n     *        - `MediaError` (video.js): will return itself if it's already a\n     *          video.js `MediaError` object.\n     *\n     * @see [MediaError Spec]{@link https://dev.w3.org/html5/spec-author-view/video.html#mediaerror}\n     * @see [Encrypted MediaError Spec]{@link https://www.w3.org/TR/2013/WD-encrypted-media-20130510/#error-codes}\n     *\n     * @class MediaError\n     */\n    function MediaError(value) {\n        // Allow redundant calls to this constructor to avoid having `instanceof`\n        // checks peppered around the code.\n        if (value instanceof MediaError) {\n            return value;\n        }\n        if (typeof value === 'number') {\n            this.code = value;\n        } else if (typeof value === 'string') {\n            // default code is zero, so this is a custom error\n            this.message = value;\n        } else if (isObject$1(value)) {\n            // We assign the `code` property manually because native `MediaError` objects\n            // do not expose it as an own/enumerable property of the object.\n            if (typeof value.code === 'number') {\n                this.code = value.code;\n            }\n            Object.assign(this, value);\n        }\n        if (!this.message) {\n            this.message = MediaError.defaultMessages[this.code] || '';\n        }\n    }\n\n    /**\n     * The error code that refers two one of the defined `MediaError` types\n     *\n     * @type {Number}\n     */\n    MediaError.prototype.code = 0;\n\n    /**\n     * An optional message that to show with the error. Message is not part of the HTML5\n     * video spec but allows for more informative custom errors.\n     *\n     * @type {String}\n     */\n    MediaError.prototype.message = '';\n\n    /**\n     * An optional status code that can be set by plugins to allow even more detail about\n     * the error. For example a plugin might provide a specific HTTP status code and an\n     * error message for that code. Then when the plugin gets that error this class will\n     * know how to display an error message for it. This allows a custom message to show\n     * up on the `Player` error overlay.\n     *\n     * @type {Array}\n     */\n    MediaError.prototype.status = null;\n\n    /**\n     * Errors indexed by the W3C standard. The order **CANNOT CHANGE**! See the\n     * specification listed under {@link MediaError} for more information.\n     *\n     * @enum {array}\n     * @readonly\n     * @property {string} 0 - MEDIA_ERR_CUSTOM\n     * @property {string} 1 - MEDIA_ERR_ABORTED\n     * @property {string} 2 - MEDIA_ERR_NETWORK\n     * @property {string} 3 - MEDIA_ERR_DECODE\n     * @property {string} 4 - MEDIA_ERR_SRC_NOT_SUPPORTED\n     * @property {string} 5 - MEDIA_ERR_ENCRYPTED\n     */\n    MediaError.errorTypes = ['MEDIA_ERR_CUSTOM', 'MEDIA_ERR_ABORTED', 'MEDIA_ERR_NETWORK', 'MEDIA_ERR_DECODE', 'MEDIA_ERR_SRC_NOT_SUPPORTED', 'MEDIA_ERR_ENCRYPTED'];\n\n    /**\n     * The default `MediaError` messages based on the {@link MediaError.errorTypes}.\n     *\n     * @type {Array}\n     * @constant\n     */\n    MediaError.defaultMessages = {\n        1: 'You aborted the media playback',\n        2: 'A network error caused the media download to fail part-way.',\n        3: 'The media playback was aborted due to a corruption problem or because the media used features your browser did not support.',\n        4: 'The media could not be loaded, either because the server or network failed or because the format is not supported.',\n        5: 'The media is encrypted and we do not have the keys to decrypt it.'\n    };\n\n    // Add types as properties on MediaError\n    // e.g. MediaError.MEDIA_ERR_SRC_NOT_SUPPORTED = 4;\n    for (let errNum = 0; errNum < MediaError.errorTypes.length; errNum++) {\n        MediaError[MediaError.errorTypes[errNum]] = errNum;\n        // values should be accessible on both the class and instance\n        MediaError.prototype[MediaError.errorTypes[errNum]] = errNum;\n    }\n\n    var tuple = SafeParseTuple;\n    function SafeParseTuple(obj, reviver) {\n        var json;\n        var error = null;\n        try {\n            json = JSON.parse(obj, reviver);\n        } catch (err) {\n            error = err;\n        }\n        return [error, json];\n    }\n\n    /**\n     * Returns whether an object is `Promise`-like (i.e. has a `then` method).\n     *\n     * @param  {Object}  value\n     *         An object that may or may not be `Promise`-like.\n     *\n     * @return {boolean}\n     *         Whether or not the object is `Promise`-like.\n     */\n    function isPromise(value) {\n        return value !== undefined && value !== null && typeof value.then === 'function';\n    }\n\n    /**\n     * Silence a Promise-like object.\n     *\n     * This is useful for avoiding non-harmful, but potentially confusing \"uncaught\n     * play promise\" rejection error messages.\n     *\n     * @param  {Object} value\n     *         An object that may or may not be `Promise`-like.\n     */\n    function silencePromise(value) {\n        if (isPromise(value)) {\n            value.then(null, e => {});\n        }\n    }\n\n    /**\n     * @file text-track-list-converter.js Utilities for capturing text track state and\n     * re-creating tracks based on a capture.\n     *\n     * @module text-track-list-converter\n     */\n\n    /**\n     * Examine a single {@link TextTrack} and return a JSON-compatible javascript object that\n     * represents the {@link TextTrack}'s state.\n     *\n     * @param {TextTrack} track\n     *        The text track to query.\n     *\n     * @return {Object}\n     *         A serializable javascript representation of the TextTrack.\n     * @private\n     */\n    const trackToJson_ = function (track) {\n        const ret = ['kind', 'label', 'language', 'id', 'inBandMetadataTrackDispatchType', 'mode', 'src'].reduce((acc, prop, i) => {\n            if (track[prop]) {\n                acc[prop] = track[prop];\n            }\n            return acc;\n        }, {\n            cues: track.cues && Array.prototype.map.call(track.cues, function (cue) {\n                return {\n                    startTime: cue.startTime,\n                    endTime: cue.endTime,\n                    text: cue.text,\n                    id: cue.id\n                };\n            })\n        });\n        return ret;\n    };\n\n    /**\n     * Examine a {@link Tech} and return a JSON-compatible javascript array that represents the\n     * state of all {@link TextTrack}s currently configured. The return array is compatible with\n     * {@link text-track-list-converter:jsonToTextTracks}.\n     *\n     * @param { import('../tech/tech').default } tech\n     *        The tech object to query\n     *\n     * @return {Array}\n     *         A serializable javascript representation of the {@link Tech}s\n     *         {@link TextTrackList}.\n     */\n    const textTracksToJson = function (tech) {\n        const trackEls = tech.$$('track');\n        const trackObjs = Array.prototype.map.call(trackEls, t => t.track);\n        const tracks = Array.prototype.map.call(trackEls, function (trackEl) {\n            const json = trackToJson_(trackEl.track);\n            if (trackEl.src) {\n                json.src = trackEl.src;\n            }\n            return json;\n        });\n        return tracks.concat(Array.prototype.filter.call(tech.textTracks(), function (track) {\n            return trackObjs.indexOf(track) === -1;\n        }).map(trackToJson_));\n    };\n\n    /**\n     * Create a set of remote {@link TextTrack}s on a {@link Tech} based on an array of javascript\n     * object {@link TextTrack} representations.\n     *\n     * @param {Array} json\n     *        An array of `TextTrack` representation objects, like those that would be\n     *        produced by `textTracksToJson`.\n     *\n     * @param {Tech} tech\n     *        The `Tech` to create the `TextTrack`s on.\n     */\n    const jsonToTextTracks = function (json, tech) {\n        json.forEach(function (track) {\n            const addedTrack = tech.addRemoteTextTrack(track).track;\n            if (!track.src && track.cues) {\n                track.cues.forEach(cue => addedTrack.addCue(cue));\n            }\n        });\n        return tech.textTracks();\n    };\n    var textTrackConverter = {\n        textTracksToJson,\n        jsonToTextTracks,\n        trackToJson_\n    };\n\n    /**\n     * @file modal-dialog.js\n     */\n    const MODAL_CLASS_NAME = 'vjs-modal-dialog';\n\n    /**\n     * The `ModalDialog` displays over the video and its controls, which blocks\n     * interaction with the player until it is closed.\n     *\n     * Modal dialogs include a \"Close\" button and will close when that button\n     * is activated - or when ESC is pressed anywhere.\n     *\n     * @extends Component\n     */\n    class ModalDialog extends Component$1 {\n        /**\n         * Create an instance of this class.\n         *\n         * @param { import('./player').default } player\n         *        The `Player` that this class should be attached to.\n         *\n         * @param {Object} [options]\n         *        The key/value store of player options.\n         *\n         * @param { import('./utils/dom').ContentDescriptor} [options.content=undefined]\n         *        Provide customized content for this modal.\n         *\n         * @param {string} [options.description]\n         *        A text description for the modal, primarily for accessibility.\n         *\n         * @param {boolean} [options.fillAlways=false]\n         *        Normally, modals are automatically filled only the first time\n         *        they open. This tells the modal to refresh its content\n         *        every time it opens.\n         *\n         * @param {string} [options.label]\n         *        A text label for the modal, primarily for accessibility.\n         *\n         * @param {boolean} [options.pauseOnOpen=true]\n         *        If `true`, playback will will be paused if playing when\n         *        the modal opens, and resumed when it closes.\n         *\n         * @param {boolean} [options.temporary=true]\n         *        If `true`, the modal can only be opened once; it will be\n         *        disposed as soon as it's closed.\n         *\n         * @param {boolean} [options.uncloseable=false]\n         *        If `true`, the user will not be able to close the modal\n         *        through the UI in the normal ways. Programmatic closing is\n         *        still possible.\n         */\n        constructor(player, options) {\n            super(player, options);\n            this.handleKeyDown_ = e => this.handleKeyDown(e);\n            this.close_ = e => this.close(e);\n            this.opened_ = this.hasBeenOpened_ = this.hasBeenFilled_ = false;\n            this.closeable(!this.options_.uncloseable);\n            this.content(this.options_.content);\n\n            // Make sure the contentEl is defined AFTER any children are initialized\n            // because we only want the contents of the modal in the contentEl\n            // (not the UI elements like the close button).\n            this.contentEl_ = createEl('div', {\n                className: `${MODAL_CLASS_NAME}-content`\n            }, {\n                role: 'document'\n            });\n            this.descEl_ = createEl('p', {\n                className: `${MODAL_CLASS_NAME}-description vjs-control-text`,\n                id: this.el().getAttribute('aria-describedby')\n            });\n            textContent(this.descEl_, this.description());\n            this.el_.appendChild(this.descEl_);\n            this.el_.appendChild(this.contentEl_);\n        }\n\n        /**\n         * Create the `ModalDialog`'s DOM element\n         *\n         * @return {Element}\n         *         The DOM element that gets created.\n         */\n        createEl() {\n            return super.createEl('div', {\n                className: this.buildCSSClass(),\n                tabIndex: -1\n            }, {\n                'aria-describedby': `${this.id()}_description`,\n                'aria-hidden': 'true',\n                'aria-label': this.label(),\n                'role': 'dialog'\n            });\n        }\n        dispose() {\n            this.contentEl_ = null;\n            this.descEl_ = null;\n            this.previouslyActiveEl_ = null;\n            super.dispose();\n        }\n\n        /**\n         * Builds the default DOM `className`.\n         *\n         * @return {string}\n         *         The DOM `className` for this object.\n         */\n        buildCSSClass() {\n            return `${MODAL_CLASS_NAME} vjs-hidden ${super.buildCSSClass()}`;\n        }\n\n        /**\n         * Returns the label string for this modal. Primarily used for accessibility.\n         *\n         * @return {string}\n         *         the localized or raw label of this modal.\n         */\n        label() {\n            return this.localize(this.options_.label || 'Modal Window');\n        }\n\n        /**\n         * Returns the description string for this modal. Primarily used for\n         * accessibility.\n         *\n         * @return {string}\n         *         The localized or raw description of this modal.\n         */\n        description() {\n            let desc = this.options_.description || this.localize('This is a modal window.');\n\n            // Append a universal closeability message if the modal is closeable.\n            if (this.closeable()) {\n                desc += ' ' + this.localize('This modal can be closed by pressing the Escape key or activating the close button.');\n            }\n            return desc;\n        }\n\n        /**\n         * Opens the modal.\n         *\n         * @fires ModalDialog#beforemodalopen\n         * @fires ModalDialog#modalopen\n         */\n        open() {\n            if (!this.opened_) {\n                const player = this.player();\n\n                /**\n                 * Fired just before a `ModalDialog` is opened.\n                 *\n                 * @event ModalDialog#beforemodalopen\n                 * @type {Event}\n                 */\n                this.trigger('beforemodalopen');\n                this.opened_ = true;\n\n                // Fill content if the modal has never opened before and\n                // never been filled.\n                if (this.options_.fillAlways || !this.hasBeenOpened_ && !this.hasBeenFilled_) {\n                    this.fill();\n                }\n\n                // If the player was playing, pause it and take note of its previously\n                // playing state.\n                this.wasPlaying_ = !player.paused();\n                if (this.options_.pauseOnOpen && this.wasPlaying_) {\n                    player.pause();\n                }\n                this.on('keydown', this.handleKeyDown_);\n\n                // Hide controls and note if they were enabled.\n                this.hadControls_ = player.controls();\n                player.controls(false);\n                this.show();\n                this.conditionalFocus_();\n                this.el().setAttribute('aria-hidden', 'false');\n\n                /**\n                 * Fired just after a `ModalDialog` is opened.\n                 *\n                 * @event ModalDialog#modalopen\n                 * @type {Event}\n                 */\n                this.trigger('modalopen');\n                this.hasBeenOpened_ = true;\n            }\n        }\n\n        /**\n         * If the `ModalDialog` is currently open or closed.\n         *\n         * @param  {boolean} [value]\n         *         If given, it will open (`true`) or close (`false`) the modal.\n         *\n         * @return {boolean}\n         *         the current open state of the modaldialog\n         */\n        opened(value) {\n            if (typeof value === 'boolean') {\n                this[value ? 'open' : 'close']();\n            }\n            return this.opened_;\n        }\n\n        /**\n         * Closes the modal, does nothing if the `ModalDialog` is\n         * not open.\n         *\n         * @fires ModalDialog#beforemodalclose\n         * @fires ModalDialog#modalclose\n         */\n        close() {\n            if (!this.opened_) {\n                return;\n            }\n            const player = this.player();\n\n            /**\n             * Fired just before a `ModalDialog` is closed.\n             *\n             * @event ModalDialog#beforemodalclose\n             * @type {Event}\n             */\n            this.trigger('beforemodalclose');\n            this.opened_ = false;\n            if (this.wasPlaying_ && this.options_.pauseOnOpen) {\n                player.play();\n            }\n            this.off('keydown', this.handleKeyDown_);\n            if (this.hadControls_) {\n                player.controls(true);\n            }\n            this.hide();\n            this.el().setAttribute('aria-hidden', 'true');\n\n            /**\n             * Fired just after a `ModalDialog` is closed.\n             *\n             * @event ModalDialog#modalclose\n             * @type {Event}\n             */\n            this.trigger('modalclose');\n            this.conditionalBlur_();\n            if (this.options_.temporary) {\n                this.dispose();\n            }\n        }\n\n        /**\n         * Check to see if the `ModalDialog` is closeable via the UI.\n         *\n         * @param  {boolean} [value]\n         *         If given as a boolean, it will set the `closeable` option.\n         *\n         * @return {boolean}\n         *         Returns the final value of the closable option.\n         */\n        closeable(value) {\n            if (typeof value === 'boolean') {\n                const closeable = this.closeable_ = !!value;\n                let close = this.getChild('closeButton');\n\n                // If this is being made closeable and has no close button, add one.\n                if (closeable && !close) {\n                    // The close button should be a child of the modal - not its\n                    // content element, so temporarily change the content element.\n                    const temp = this.contentEl_;\n                    this.contentEl_ = this.el_;\n                    close = this.addChild('closeButton', {\n                        controlText: 'Close Modal Dialog'\n                    });\n                    this.contentEl_ = temp;\n                    this.on(close, 'close', this.close_);\n                }\n\n                // If this is being made uncloseable and has a close button, remove it.\n                if (!closeable && close) {\n                    this.off(close, 'close', this.close_);\n                    this.removeChild(close);\n                    close.dispose();\n                }\n            }\n            return this.closeable_;\n        }\n\n        /**\n         * Fill the modal's content element with the modal's \"content\" option.\n         * The content element will be emptied before this change takes place.\n         */\n        fill() {\n            this.fillWith(this.content());\n        }\n\n        /**\n         * Fill the modal's content element with arbitrary content.\n         * The content element will be emptied before this change takes place.\n         *\n         * @fires ModalDialog#beforemodalfill\n         * @fires ModalDialog#modalfill\n         *\n         * @param { import('./utils/dom').ContentDescriptor} [content]\n         *        The same rules apply to this as apply to the `content` option.\n         */\n        fillWith(content) {\n            const contentEl = this.contentEl();\n            const parentEl = contentEl.parentNode;\n            const nextSiblingEl = contentEl.nextSibling;\n\n            /**\n             * Fired just before a `ModalDialog` is filled with content.\n             *\n             * @event ModalDialog#beforemodalfill\n             * @type {Event}\n             */\n            this.trigger('beforemodalfill');\n            this.hasBeenFilled_ = true;\n\n            // Detach the content element from the DOM before performing\n            // manipulation to avoid modifying the live DOM multiple times.\n            parentEl.removeChild(contentEl);\n            this.empty();\n            insertContent(contentEl, content);\n            /**\n             * Fired just after a `ModalDialog` is filled with content.\n             *\n             * @event ModalDialog#modalfill\n             * @type {Event}\n             */\n            this.trigger('modalfill');\n\n            // Re-inject the re-filled content element.\n            if (nextSiblingEl) {\n                parentEl.insertBefore(contentEl, nextSiblingEl);\n            } else {\n                parentEl.appendChild(contentEl);\n            }\n\n            // make sure that the close button is last in the dialog DOM\n            const closeButton = this.getChild('closeButton');\n            if (closeButton) {\n                parentEl.appendChild(closeButton.el_);\n            }\n        }\n\n        /**\n         * Empties the content element. This happens anytime the modal is filled.\n         *\n         * @fires ModalDialog#beforemodalempty\n         * @fires ModalDialog#modalempty\n         */\n        empty() {\n            /**\n             * Fired just before a `ModalDialog` is emptied.\n             *\n             * @event ModalDialog#beforemodalempty\n             * @type {Event}\n             */\n            this.trigger('beforemodalempty');\n            emptyEl(this.contentEl());\n\n            /**\n             * Fired just after a `ModalDialog` is emptied.\n             *\n             * @event ModalDialog#modalempty\n             * @type {Event}\n             */\n            this.trigger('modalempty');\n        }\n\n        /**\n         * Gets or sets the modal content, which gets normalized before being\n         * rendered into the DOM.\n         *\n         * This does not update the DOM or fill the modal, but it is called during\n         * that process.\n         *\n         * @param  { import('./utils/dom').ContentDescriptor} [value]\n         *         If defined, sets the internal content value to be used on the\n         *         next call(s) to `fill`. This value is normalized before being\n         *         inserted. To \"clear\" the internal content value, pass `null`.\n         *\n         * @return { import('./utils/dom').ContentDescriptor}\n         *         The current content of the modal dialog\n         */\n        content(value) {\n            if (typeof value !== 'undefined') {\n                this.content_ = value;\n            }\n            return this.content_;\n        }\n\n        /**\n         * conditionally focus the modal dialog if focus was previously on the player.\n         *\n         * @private\n         */\n        conditionalFocus_() {\n            const activeEl = document.activeElement;\n            const playerEl = this.player_.el_;\n            this.previouslyActiveEl_ = null;\n            if (playerEl.contains(activeEl) || playerEl === activeEl) {\n                this.previouslyActiveEl_ = activeEl;\n                this.focus();\n            }\n        }\n\n        /**\n         * conditionally blur the element and refocus the last focused element\n         *\n         * @private\n         */\n        conditionalBlur_() {\n            if (this.previouslyActiveEl_) {\n                this.previouslyActiveEl_.focus();\n                this.previouslyActiveEl_ = null;\n            }\n        }\n\n        /**\n         * Keydown handler. Attached when modal is focused.\n         *\n         * @listens keydown\n         */\n        handleKeyDown(event) {\n            // Do not allow keydowns to reach out of the modal dialog.\n            event.stopPropagation();\n            if (keycode.isEventKey(event, 'Escape') && this.closeable()) {\n                event.preventDefault();\n                this.close();\n                return;\n            }\n\n            // exit early if it isn't a tab key\n            if (!keycode.isEventKey(event, 'Tab')) {\n                return;\n            }\n            const focusableEls = this.focusableEls_();\n            const activeEl = this.el_.querySelector(':focus');\n            let focusIndex;\n            for (let i = 0; i < focusableEls.length; i++) {\n                if (activeEl === focusableEls[i]) {\n                    focusIndex = i;\n                    break;\n                }\n            }\n            if (document.activeElement === this.el_) {\n                focusIndex = 0;\n            }\n            if (event.shiftKey && focusIndex === 0) {\n                focusableEls[focusableEls.length - 1].focus();\n                event.preventDefault();\n            } else if (!event.shiftKey && focusIndex === focusableEls.length - 1) {\n                focusableEls[0].focus();\n                event.preventDefault();\n            }\n        }\n\n        /**\n         * get all focusable elements\n         *\n         * @private\n         */\n        focusableEls_() {\n            const allChildren = this.el_.querySelectorAll('*');\n            return Array.prototype.filter.call(allChildren, child => {\n                return (child instanceof window.HTMLAnchorElement || child instanceof window.HTMLAreaElement) && child.hasAttribute('href') || (child instanceof window.HTMLInputElement || child instanceof window.HTMLSelectElement || child instanceof window.HTMLTextAreaElement || child instanceof window.HTMLButtonElement) && !child.hasAttribute('disabled') || child instanceof window.HTMLIFrameElement || child instanceof window.HTMLObjectElement || child instanceof window.HTMLEmbedElement || child.hasAttribute('tabindex') && child.getAttribute('tabindex') !== -1 || child.hasAttribute('contenteditable');\n            });\n        }\n    }\n\n    /**\n     * Default options for `ModalDialog` default options.\n     *\n     * @type {Object}\n     * @private\n     */\n    ModalDialog.prototype.options_ = {\n        pauseOnOpen: true,\n        temporary: true\n    };\n    Component$1.registerComponent('ModalDialog', ModalDialog);\n\n    /**\n     * @file track-list.js\n     */\n\n    /**\n     * Common functionaliy between {@link TextTrackList}, {@link AudioTrackList}, and\n     * {@link VideoTrackList}\n     *\n     * @extends EventTarget\n     */\n    class TrackList extends EventTarget$2 {\n        /**\n         * Create an instance of this class\n         *\n         * @param { import('./track').default[] } tracks\n         *        A list of tracks to initialize the list with.\n         *\n         * @abstract\n         */\n        constructor(tracks = []) {\n            super();\n            this.tracks_ = [];\n\n            /**\n             * @memberof TrackList\n             * @member {number} length\n             *         The current number of `Track`s in the this Trackist.\n             * @instance\n             */\n            Object.defineProperty(this, 'length', {\n                get() {\n                    return this.tracks_.length;\n                }\n            });\n            for (let i = 0; i < tracks.length; i++) {\n                this.addTrack(tracks[i]);\n            }\n        }\n\n        /**\n         * Add a {@link Track} to the `TrackList`\n         *\n         * @param { import('./track').default } track\n         *        The audio, video, or text track to add to the list.\n         *\n         * @fires TrackList#addtrack\n         */\n        addTrack(track) {\n            const index = this.tracks_.length;\n            if (!('' + index in this)) {\n                Object.defineProperty(this, index, {\n                    get() {\n                        return this.tracks_[index];\n                    }\n                });\n            }\n\n            // Do not add duplicate tracks\n            if (this.tracks_.indexOf(track) === -1) {\n                this.tracks_.push(track);\n                /**\n                 * Triggered when a track is added to a track list.\n                 *\n                 * @event TrackList#addtrack\n                 * @type {Event}\n                 * @property {Track} track\n                 *           A reference to track that was added.\n                 */\n                this.trigger({\n                    track,\n                    type: 'addtrack',\n                    target: this\n                });\n            }\n\n            /**\n             * Triggered when a track label is changed.\n             *\n             * @event TrackList#addtrack\n             * @type {Event}\n             * @property {Track} track\n             *           A reference to track that was added.\n             */\n            track.labelchange_ = () => {\n                this.trigger({\n                    track,\n                    type: 'labelchange',\n                    target: this\n                });\n            };\n            if (isEvented(track)) {\n                track.addEventListener('labelchange', track.labelchange_);\n            }\n        }\n\n        /**\n         * Remove a {@link Track} from the `TrackList`\n         *\n         * @param { import('./track').default } rtrack\n         *        The audio, video, or text track to remove from the list.\n         *\n         * @fires TrackList#removetrack\n         */\n        removeTrack(rtrack) {\n            let track;\n            for (let i = 0, l = this.length; i < l; i++) {\n                if (this[i] === rtrack) {\n                    track = this[i];\n                    if (track.off) {\n                        track.off();\n                    }\n                    this.tracks_.splice(i, 1);\n                    break;\n                }\n            }\n            if (!track) {\n                return;\n            }\n\n            /**\n             * Triggered when a track is removed from track list.\n             *\n             * @event TrackList#removetrack\n             * @type {Event}\n             * @property {Track} track\n             *           A reference to track that was removed.\n             */\n            this.trigger({\n                track,\n                type: 'removetrack',\n                target: this\n            });\n        }\n\n        /**\n         * Get a Track from the TrackList by a tracks id\n         *\n         * @param {string} id - the id of the track to get\n         * @method getTrackById\n         * @return { import('./track').default }\n         * @private\n         */\n        getTrackById(id) {\n            let result = null;\n            for (let i = 0, l = this.length; i < l; i++) {\n                const track = this[i];\n                if (track.id === id) {\n                    result = track;\n                    break;\n                }\n            }\n            return result;\n        }\n    }\n\n    /**\n     * Triggered when a different track is selected/enabled.\n     *\n     * @event TrackList#change\n     * @type {Event}\n     */\n\n    /**\n     * Events that can be called with on + eventName. See {@link EventHandler}.\n     *\n     * @property {Object} TrackList#allowedEvents_\n     * @private\n     */\n    TrackList.prototype.allowedEvents_ = {\n        change: 'change',\n        addtrack: 'addtrack',\n        removetrack: 'removetrack',\n        labelchange: 'labelchange'\n    };\n\n    // emulate attribute EventHandler support to allow for feature detection\n    for (const event in TrackList.prototype.allowedEvents_) {\n        TrackList.prototype['on' + event] = null;\n    }\n\n    /**\n     * @file audio-track-list.js\n     */\n\n    /**\n     * Anywhere we call this function we diverge from the spec\n     * as we only support one enabled audiotrack at a time\n     *\n     * @param {AudioTrackList} list\n     *        list to work on\n     *\n     * @param { import('./audio-track').default } track\n     *        The track to skip\n     *\n     * @private\n     */\n    const disableOthers$1 = function (list, track) {\n        for (let i = 0; i < list.length; i++) {\n            if (!Object.keys(list[i]).length || track.id === list[i].id) {\n                continue;\n            }\n            // another audio track is enabled, disable it\n            list[i].enabled = false;\n        }\n    };\n\n    /**\n     * The current list of {@link AudioTrack} for a media file.\n     *\n     * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#audiotracklist}\n     * @extends TrackList\n     */\n    class AudioTrackList extends TrackList {\n        /**\n         * Create an instance of this class.\n         *\n         * @param {AudioTrack[]} [tracks=[]]\n         *        A list of `AudioTrack` to instantiate the list with.\n         */\n        constructor(tracks = []) {\n            // make sure only 1 track is enabled\n            // sorted from last index to first index\n            for (let i = tracks.length - 1; i >= 0; i--) {\n                if (tracks[i].enabled) {\n                    disableOthers$1(tracks, tracks[i]);\n                    break;\n                }\n            }\n            super(tracks);\n            this.changing_ = false;\n        }\n\n        /**\n         * Add an {@link AudioTrack} to the `AudioTrackList`.\n         *\n         * @param { import('./audio-track').default } track\n         *        The AudioTrack to add to the list\n         *\n         * @fires TrackList#addtrack\n         */\n        addTrack(track) {\n            if (track.enabled) {\n                disableOthers$1(this, track);\n            }\n            super.addTrack(track);\n            // native tracks don't have this\n            if (!track.addEventListener) {\n                return;\n            }\n            track.enabledChange_ = () => {\n                // when we are disabling other tracks (since we don't support\n                // more than one track at a time) we will set changing_\n                // to true so that we don't trigger additional change events\n                if (this.changing_) {\n                    return;\n                }\n                this.changing_ = true;\n                disableOthers$1(this, track);\n                this.changing_ = false;\n                this.trigger('change');\n            };\n\n            /**\n             * @listens AudioTrack#enabledchange\n             * @fires TrackList#change\n             */\n            track.addEventListener('enabledchange', track.enabledChange_);\n        }\n        removeTrack(rtrack) {\n            super.removeTrack(rtrack);\n            if (rtrack.removeEventListener && rtrack.enabledChange_) {\n                rtrack.removeEventListener('enabledchange', rtrack.enabledChange_);\n                rtrack.enabledChange_ = null;\n            }\n        }\n    }\n\n    /**\n     * @file video-track-list.js\n     */\n\n    /**\n     * Un-select all other {@link VideoTrack}s that are selected.\n     *\n     * @param {VideoTrackList} list\n     *        list to work on\n     *\n     * @param { import('./video-track').default } track\n     *        The track to skip\n     *\n     * @private\n     */\n    const disableOthers = function (list, track) {\n        for (let i = 0; i < list.length; i++) {\n            if (!Object.keys(list[i]).length || track.id === list[i].id) {\n                continue;\n            }\n            // another video track is enabled, disable it\n            list[i].selected = false;\n        }\n    };\n\n    /**\n     * The current list of {@link VideoTrack} for a video.\n     *\n     * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#videotracklist}\n     * @extends TrackList\n     */\n    class VideoTrackList extends TrackList {\n        /**\n         * Create an instance of this class.\n         *\n         * @param {VideoTrack[]} [tracks=[]]\n         *        A list of `VideoTrack` to instantiate the list with.\n         */\n        constructor(tracks = []) {\n            // make sure only 1 track is enabled\n            // sorted from last index to first index\n            for (let i = tracks.length - 1; i >= 0; i--) {\n                if (tracks[i].selected) {\n                    disableOthers(tracks, tracks[i]);\n                    break;\n                }\n            }\n            super(tracks);\n            this.changing_ = false;\n\n            /**\n             * @member {number} VideoTrackList#selectedIndex\n             *         The current index of the selected {@link VideoTrack`}.\n             */\n            Object.defineProperty(this, 'selectedIndex', {\n                get() {\n                    for (let i = 0; i < this.length; i++) {\n                        if (this[i].selected) {\n                            return i;\n                        }\n                    }\n                    return -1;\n                },\n                set() {}\n            });\n        }\n\n        /**\n         * Add a {@link VideoTrack} to the `VideoTrackList`.\n         *\n         * @param { import('./video-track').default } track\n         *        The VideoTrack to add to the list\n         *\n         * @fires TrackList#addtrack\n         */\n        addTrack(track) {\n            if (track.selected) {\n                disableOthers(this, track);\n            }\n            super.addTrack(track);\n            // native tracks don't have this\n            if (!track.addEventListener) {\n                return;\n            }\n            track.selectedChange_ = () => {\n                if (this.changing_) {\n                    return;\n                }\n                this.changing_ = true;\n                disableOthers(this, track);\n                this.changing_ = false;\n                this.trigger('change');\n            };\n\n            /**\n             * @listens VideoTrack#selectedchange\n             * @fires TrackList#change\n             */\n            track.addEventListener('selectedchange', track.selectedChange_);\n        }\n        removeTrack(rtrack) {\n            super.removeTrack(rtrack);\n            if (rtrack.removeEventListener && rtrack.selectedChange_) {\n                rtrack.removeEventListener('selectedchange', rtrack.selectedChange_);\n                rtrack.selectedChange_ = null;\n            }\n        }\n    }\n\n    /**\n     * @file text-track-list.js\n     */\n\n    /**\n     * The current list of {@link TextTrack} for a media file.\n     *\n     * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#texttracklist}\n     * @extends TrackList\n     */\n    class TextTrackList extends TrackList {\n        /**\n         * Add a {@link TextTrack} to the `TextTrackList`\n         *\n         * @param { import('./text-track').default } track\n         *        The text track to add to the list.\n         *\n         * @fires TrackList#addtrack\n         */\n        addTrack(track) {\n            super.addTrack(track);\n            if (!this.queueChange_) {\n                this.queueChange_ = () => this.queueTrigger('change');\n            }\n            if (!this.triggerSelectedlanguagechange) {\n                this.triggerSelectedlanguagechange_ = () => this.trigger('selectedlanguagechange');\n            }\n\n            /**\n             * @listens TextTrack#modechange\n             * @fires TrackList#change\n             */\n            track.addEventListener('modechange', this.queueChange_);\n            const nonLanguageTextTrackKind = ['metadata', 'chapters'];\n            if (nonLanguageTextTrackKind.indexOf(track.kind) === -1) {\n                track.addEventListener('modechange', this.triggerSelectedlanguagechange_);\n            }\n        }\n        removeTrack(rtrack) {\n            super.removeTrack(rtrack);\n\n            // manually remove the event handlers we added\n            if (rtrack.removeEventListener) {\n                if (this.queueChange_) {\n                    rtrack.removeEventListener('modechange', this.queueChange_);\n                }\n                if (this.selectedlanguagechange_) {\n                    rtrack.removeEventListener('modechange', this.triggerSelectedlanguagechange_);\n                }\n            }\n        }\n    }\n\n    /**\n     * @file html-track-element-list.js\n     */\n\n    /**\n     * The current list of {@link HtmlTrackElement}s.\n     */\n    class HtmlTrackElementList {\n        /**\n         * Create an instance of this class.\n         *\n         * @param {HtmlTrackElement[]} [tracks=[]]\n         *        A list of `HtmlTrackElement` to instantiate the list with.\n         */\n        constructor(trackElements = []) {\n            this.trackElements_ = [];\n\n            /**\n             * @memberof HtmlTrackElementList\n             * @member {number} length\n             *         The current number of `Track`s in the this Trackist.\n             * @instance\n             */\n            Object.defineProperty(this, 'length', {\n                get() {\n                    return this.trackElements_.length;\n                }\n            });\n            for (let i = 0, length = trackElements.length; i < length; i++) {\n                this.addTrackElement_(trackElements[i]);\n            }\n        }\n\n        /**\n         * Add an {@link HtmlTrackElement} to the `HtmlTrackElementList`\n         *\n         * @param {HtmlTrackElement} trackElement\n         *        The track element to add to the list.\n         *\n         * @private\n         */\n        addTrackElement_(trackElement) {\n            const index = this.trackElements_.length;\n            if (!('' + index in this)) {\n                Object.defineProperty(this, index, {\n                    get() {\n                        return this.trackElements_[index];\n                    }\n                });\n            }\n\n            // Do not add duplicate elements\n            if (this.trackElements_.indexOf(trackElement) === -1) {\n                this.trackElements_.push(trackElement);\n            }\n        }\n\n        /**\n         * Get an {@link HtmlTrackElement} from the `HtmlTrackElementList` given an\n         * {@link TextTrack}.\n         *\n         * @param {TextTrack} track\n         *        The track associated with a track element.\n         *\n         * @return {HtmlTrackElement|undefined}\n         *         The track element that was found or undefined.\n         *\n         * @private\n         */\n        getTrackElementByTrack_(track) {\n            let trackElement_;\n            for (let i = 0, length = this.trackElements_.length; i < length; i++) {\n                if (track === this.trackElements_[i].track) {\n                    trackElement_ = this.trackElements_[i];\n                    break;\n                }\n            }\n            return trackElement_;\n        }\n\n        /**\n         * Remove a {@link HtmlTrackElement} from the `HtmlTrackElementList`\n         *\n         * @param {HtmlTrackElement} trackElement\n         *        The track element to remove from the list.\n         *\n         * @private\n         */\n        removeTrackElement_(trackElement) {\n            for (let i = 0, length = this.trackElements_.length; i < length; i++) {\n                if (trackElement === this.trackElements_[i]) {\n                    if (this.trackElements_[i].track && typeof this.trackElements_[i].track.off === 'function') {\n                        this.trackElements_[i].track.off();\n                    }\n                    if (typeof this.trackElements_[i].off === 'function') {\n                        this.trackElements_[i].off();\n                    }\n                    this.trackElements_.splice(i, 1);\n                    break;\n                }\n            }\n        }\n    }\n\n    /**\n     * @file text-track-cue-list.js\n     */\n\n    /**\n     * @typedef {Object} TextTrackCueList~TextTrackCue\n     *\n     * @property {string} id\n     *           The unique id for this text track cue\n     *\n     * @property {number} startTime\n     *           The start time for this text track cue\n     *\n     * @property {number} endTime\n     *           The end time for this text track cue\n     *\n     * @property {boolean} pauseOnExit\n     *           Pause when the end time is reached if true.\n     *\n     * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#texttrackcue}\n     */\n\n    /**\n     * A List of TextTrackCues.\n     *\n     * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#texttrackcuelist}\n     */\n    class TextTrackCueList {\n        /**\n         * Create an instance of this class..\n         *\n         * @param {Array} cues\n         *        A list of cues to be initialized with\n         */\n        constructor(cues) {\n            TextTrackCueList.prototype.setCues_.call(this, cues);\n\n            /**\n             * @memberof TextTrackCueList\n             * @member {number} length\n             *         The current number of `TextTrackCue`s in the TextTrackCueList.\n             * @instance\n             */\n            Object.defineProperty(this, 'length', {\n                get() {\n                    return this.length_;\n                }\n            });\n        }\n\n        /**\n         * A setter for cues in this list. Creates getters\n         * an an index for the cues.\n         *\n         * @param {Array} cues\n         *        An array of cues to set\n         *\n         * @private\n         */\n        setCues_(cues) {\n            const oldLength = this.length || 0;\n            let i = 0;\n            const l = cues.length;\n            this.cues_ = cues;\n            this.length_ = cues.length;\n            const defineProp = function (index) {\n                if (!('' + index in this)) {\n                    Object.defineProperty(this, '' + index, {\n                        get() {\n                            return this.cues_[index];\n                        }\n                    });\n                }\n            };\n            if (oldLength < l) {\n                i = oldLength;\n                for (; i < l; i++) {\n                    defineProp.call(this, i);\n                }\n            }\n        }\n\n        /**\n         * Get a `TextTrackCue` that is currently in the `TextTrackCueList` by id.\n         *\n         * @param {string} id\n         *        The id of the cue that should be searched for.\n         *\n         * @return {TextTrackCueList~TextTrackCue|null}\n         *         A single cue or null if none was found.\n         */\n        getCueById(id) {\n            let result = null;\n            for (let i = 0, l = this.length; i < l; i++) {\n                const cue = this[i];\n                if (cue.id === id) {\n                    result = cue;\n                    break;\n                }\n            }\n            return result;\n        }\n    }\n\n    /**\n     * @file track-kinds.js\n     */\n\n    /**\n     * All possible `VideoTrackKind`s\n     *\n     * @see https://html.spec.whatwg.org/multipage/embedded-content.html#dom-videotrack-kind\n     * @typedef VideoTrack~Kind\n     * @enum\n     */\n    const VideoTrackKind = {\n        alternative: 'alternative',\n        captions: 'captions',\n        main: 'main',\n        sign: 'sign',\n        subtitles: 'subtitles',\n        commentary: 'commentary'\n    };\n\n    /**\n     * All possible `AudioTrackKind`s\n     *\n     * @see https://html.spec.whatwg.org/multipage/embedded-content.html#dom-audiotrack-kind\n     * @typedef AudioTrack~Kind\n     * @enum\n     */\n    const AudioTrackKind = {\n        'alternative': 'alternative',\n        'descriptions': 'descriptions',\n        'main': 'main',\n        'main-desc': 'main-desc',\n        'translation': 'translation',\n        'commentary': 'commentary'\n    };\n\n    /**\n     * All possible `TextTrackKind`s\n     *\n     * @see https://html.spec.whatwg.org/multipage/embedded-content.html#dom-texttrack-kind\n     * @typedef TextTrack~Kind\n     * @enum\n     */\n    const TextTrackKind = {\n        subtitles: 'subtitles',\n        captions: 'captions',\n        descriptions: 'descriptions',\n        chapters: 'chapters',\n        metadata: 'metadata'\n    };\n\n    /**\n     * All possible `TextTrackMode`s\n     *\n     * @see https://html.spec.whatwg.org/multipage/embedded-content.html#texttrackmode\n     * @typedef TextTrack~Mode\n     * @enum\n     */\n    const TextTrackMode = {\n        disabled: 'disabled',\n        hidden: 'hidden',\n        showing: 'showing'\n    };\n\n    /**\n     * @file track.js\n     */\n\n    /**\n     * A Track class that contains all of the common functionality for {@link AudioTrack},\n     * {@link VideoTrack}, and {@link TextTrack}.\n     *\n     * > Note: This class should not be used directly\n     *\n     * @see {@link https://html.spec.whatwg.org/multipage/embedded-content.html}\n     * @extends EventTarget\n     * @abstract\n     */\n    class Track extends EventTarget$2 {\n        /**\n         * Create an instance of this class.\n         *\n         * @param {Object} [options={}]\n         *        Object of option names and values\n         *\n         * @param {string} [options.kind='']\n         *        A valid kind for the track type you are creating.\n         *\n         * @param {string} [options.id='vjs_track_' + Guid.newGUID()]\n         *        A unique id for this AudioTrack.\n         *\n         * @param {string} [options.label='']\n         *        The menu label for this track.\n         *\n         * @param {string} [options.language='']\n         *        A valid two character language code.\n         *\n         * @abstract\n         */\n        constructor(options = {}) {\n            super();\n            const trackProps = {\n                id: options.id || 'vjs_track_' + newGUID(),\n                kind: options.kind || '',\n                language: options.language || ''\n            };\n            let label = options.label || '';\n\n            /**\n             * @memberof Track\n             * @member {string} id\n             *         The id of this track. Cannot be changed after creation.\n             * @instance\n             *\n             * @readonly\n             */\n\n            /**\n             * @memberof Track\n             * @member {string} kind\n             *         The kind of track that this is. Cannot be changed after creation.\n             * @instance\n             *\n             * @readonly\n             */\n\n            /**\n             * @memberof Track\n             * @member {string} language\n             *         The two letter language code for this track. Cannot be changed after\n             *         creation.\n             * @instance\n             *\n             * @readonly\n             */\n\n            for (const key in trackProps) {\n                Object.defineProperty(this, key, {\n                    get() {\n                        return trackProps[key];\n                    },\n                    set() {}\n                });\n            }\n\n            /**\n             * @memberof Track\n             * @member {string} label\n             *         The label of this track. Cannot be changed after creation.\n             * @instance\n             *\n             * @fires Track#labelchange\n             */\n            Object.defineProperty(this, 'label', {\n                get() {\n                    return label;\n                },\n                set(newLabel) {\n                    if (newLabel !== label) {\n                        label = newLabel;\n\n                        /**\n                         * An event that fires when label changes on this track.\n                         *\n                         * > Note: This is not part of the spec!\n                         *\n                         * @event Track#labelchange\n                         * @type {Event}\n                         */\n                        this.trigger('labelchange');\n                    }\n                }\n            });\n        }\n    }\n\n    /**\n     * @file url.js\n     * @module url\n     */\n\n    /**\n     * @typedef {Object} url:URLObject\n     *\n     * @property {string} protocol\n     *           The protocol of the url that was parsed.\n     *\n     * @property {string} hostname\n     *           The hostname of the url that was parsed.\n     *\n     * @property {string} port\n     *           The port of the url that was parsed.\n     *\n     * @property {string} pathname\n     *           The pathname of the url that was parsed.\n     *\n     * @property {string} search\n     *           The search query of the url that was parsed.\n     *\n     * @property {string} hash\n     *           The hash of the url that was parsed.\n     *\n     * @property {string} host\n     *           The host of the url that was parsed.\n     */\n\n    /**\n     * Resolve and parse the elements of a URL.\n     *\n     * @function\n     * @param    {String} url\n     *           The url to parse\n     *\n     * @return   {url:URLObject}\n     *           An object of url details\n     */\n    const parseUrl = function (url) {\n        // This entire method can be replace with URL once we are able to drop IE11\n\n        const props = ['protocol', 'hostname', 'port', 'pathname', 'search', 'hash', 'host'];\n\n        // add the url to an anchor and let the browser parse the URL\n        const a = document.createElement('a');\n        a.href = url;\n\n        // Copy the specific URL properties to a new object\n        // This is also needed for IE because the anchor loses its\n        // properties when it's removed from the dom\n        const details = {};\n        for (let i = 0; i < props.length; i++) {\n            details[props[i]] = a[props[i]];\n        }\n\n        // IE adds the port to the host property unlike everyone else. If\n        // a port identifier is added for standard ports, strip it.\n        if (details.protocol === 'http:') {\n            details.host = details.host.replace(/:80$/, '');\n        }\n        if (details.protocol === 'https:') {\n            details.host = details.host.replace(/:443$/, '');\n        }\n        if (!details.protocol) {\n            details.protocol = window.location.protocol;\n        }\n\n        /* istanbul ignore if */\n        if (!details.host) {\n            details.host = window.location.host;\n        }\n        return details;\n    };\n\n    /**\n     * Get absolute version of relative URL.\n     *\n     * @function\n     * @param    {string} url\n     *           URL to make absolute\n     *\n     * @return   {string}\n     *           Absolute URL\n     *\n     * @see      http://stackoverflow.com/questions/470832/getting-an-absolute-url-from-a-relative-one-ie6-issue\n     */\n    const getAbsoluteURL = function (url) {\n        // Check if absolute URL\n        if (!url.match(/^https?:\\/\\//)) {\n            // Add the url to an anchor and let the browser parse it to convert to an absolute url\n            const a = document.createElement('a');\n            a.href = url;\n            url = a.href;\n        }\n        return url;\n    };\n\n    /**\n     * Returns the extension of the passed file name. It will return an empty string\n     * if passed an invalid path.\n     *\n     * @function\n     * @param    {string} path\n     *           The fileName path like '/path/to/file.mp4'\n     *\n     * @return  {string}\n     *           The extension in lower case or an empty string if no\n     *           extension could be found.\n     */\n    const getFileExtension = function (path) {\n        if (typeof path === 'string') {\n            const splitPathRe = /^(\\/?)([\\s\\S]*?)((?:\\.{1,2}|[^\\/]+?)(\\.([^\\.\\/\\?]+)))(?:[\\/]*|[\\?].*)$/;\n            const pathParts = splitPathRe.exec(path);\n            if (pathParts) {\n                return pathParts.pop().toLowerCase();\n            }\n        }\n        return '';\n    };\n\n    /**\n     * Returns whether the url passed is a cross domain request or not.\n     *\n     * @function\n     * @param    {string} url\n     *           The url to check.\n     *\n     * @param    {Object} [winLoc]\n     *           the domain to check the url against, defaults to window.location\n     *\n     * @param    {string} [winLoc.protocol]\n     *           The window location protocol defaults to window.location.protocol\n     *\n     * @param    {string} [winLoc.host]\n     *           The window location host defaults to window.location.host\n     *\n     * @return   {boolean}\n     *           Whether it is a cross domain request or not.\n     */\n    const isCrossOrigin = function (url, winLoc = window.location) {\n        const urlInfo = parseUrl(url);\n\n        // IE8 protocol relative urls will return ':' for protocol\n        const srcProtocol = urlInfo.protocol === ':' ? winLoc.protocol : urlInfo.protocol;\n\n        // Check if url is for another domain/origin\n        // IE8 doesn't know location.origin, so we won't rely on it here\n        const crossOrigin = srcProtocol + urlInfo.host !== winLoc.protocol + winLoc.host;\n        return crossOrigin;\n    };\n\n    var Url = /*#__PURE__*/Object.freeze({\n        __proto__: null,\n        parseUrl: parseUrl,\n        getAbsoluteURL: getAbsoluteURL,\n        getFileExtension: getFileExtension,\n        isCrossOrigin: isCrossOrigin\n    });\n\n    var win;\n    if (typeof window !== \"undefined\") {\n        win = window;\n    } else if (typeof commonjsGlobal !== \"undefined\") {\n        win = commonjsGlobal;\n    } else if (typeof self !== \"undefined\") {\n        win = self;\n    } else {\n        win = {};\n    }\n    var window_1 = win;\n\n    var _extends_1 = createCommonjsModule(function (module) {\n        function _extends() {\n            module.exports = _extends = Object.assign ? Object.assign.bind() : function (target) {\n                for (var i = 1; i < arguments.length; i++) {\n                    var source = arguments[i];\n                    for (var key in source) {\n                        if (Object.prototype.hasOwnProperty.call(source, key)) {\n                            target[key] = source[key];\n                        }\n                    }\n                }\n                return target;\n            }, module.exports.__esModule = true, module.exports[\"default\"] = module.exports;\n            return _extends.apply(this, arguments);\n        }\n        module.exports = _extends, module.exports.__esModule = true, module.exports[\"default\"] = module.exports;\n    });\n    var _extends$1 = unwrapExports(_extends_1);\n\n    var isFunction_1 = isFunction;\n    var toString = Object.prototype.toString;\n    function isFunction(fn) {\n        if (!fn) {\n            return false;\n        }\n        var string = toString.call(fn);\n        return string === '[object Function]' || typeof fn === 'function' && string !== '[object RegExp]' || typeof window !== 'undefined' && (\n            // IE8 and below\n            fn === window.setTimeout || fn === window.alert || fn === window.confirm || fn === window.prompt);\n    }\n\n    var httpResponseHandler = function httpResponseHandler(callback, decodeResponseBody) {\n        if (decodeResponseBody === void 0) {\n            decodeResponseBody = false;\n        }\n        return function (err, response, responseBody) {\n            // if the XHR failed, return that error\n            if (err) {\n                callback(err);\n                return;\n            } // if the HTTP status code is 4xx or 5xx, the request also failed\n\n            if (response.statusCode >= 400 && response.statusCode <= 599) {\n                var cause = responseBody;\n                if (decodeResponseBody) {\n                    if (window_1.TextDecoder) {\n                        var charset = getCharset(response.headers && response.headers['content-type']);\n                        try {\n                            cause = new TextDecoder(charset).decode(responseBody);\n                        } catch (e) {}\n                    } else {\n                        cause = String.fromCharCode.apply(null, new Uint8Array(responseBody));\n                    }\n                }\n                callback({\n                    cause: cause\n                });\n                return;\n            } // otherwise, request succeeded\n\n            callback(null, responseBody);\n        };\n    };\n    function getCharset(contentTypeHeader) {\n        if (contentTypeHeader === void 0) {\n            contentTypeHeader = '';\n        }\n        return contentTypeHeader.toLowerCase().split(';').reduce(function (charset, contentType) {\n            var _contentType$split = contentType.split('='),\n                type = _contentType$split[0],\n                value = _contentType$split[1];\n            if (type.trim() === 'charset') {\n                return value.trim();\n            }\n            return charset;\n        }, 'utf-8');\n    }\n    var httpHandler = httpResponseHandler;\n\n    createXHR.httpHandler = httpHandler;\n    /**\n     * @license\n     * slighly modified parse-headers 2.0.2 <https://github.com/kesla/parse-headers/>\n     * Copyright (c) 2014 David Björklund\n     * Available under the MIT license\n     * <https://github.com/kesla/parse-headers/blob/master/LICENCE>\n     */\n\n    var parseHeaders = function parseHeaders(headers) {\n        var result = {};\n        if (!headers) {\n            return result;\n        }\n        headers.trim().split('\\n').forEach(function (row) {\n            var index = row.indexOf(':');\n            var key = row.slice(0, index).trim().toLowerCase();\n            var value = row.slice(index + 1).trim();\n            if (typeof result[key] === 'undefined') {\n                result[key] = value;\n            } else if (Array.isArray(result[key])) {\n                result[key].push(value);\n            } else {\n                result[key] = [result[key], value];\n            }\n        });\n        return result;\n    };\n    var lib = createXHR; // Allow use of default import syntax in TypeScript\n\n    var default_1 = createXHR;\n    createXHR.XMLHttpRequest = window_1.XMLHttpRequest || noop$1;\n    createXHR.XDomainRequest = \"withCredentials\" in new createXHR.XMLHttpRequest() ? createXHR.XMLHttpRequest : window_1.XDomainRequest;\n    forEachArray([\"get\", \"put\", \"post\", \"patch\", \"head\", \"delete\"], function (method) {\n        createXHR[method === \"delete\" ? \"del\" : method] = function (uri, options, callback) {\n            options = initParams(uri, options, callback);\n            options.method = method.toUpperCase();\n            return _createXHR(options);\n        };\n    });\n    function forEachArray(array, iterator) {\n        for (var i = 0; i < array.length; i++) {\n            iterator(array[i]);\n        }\n    }\n    function isEmpty(obj) {\n        for (var i in obj) {\n            if (obj.hasOwnProperty(i)) return false;\n        }\n        return true;\n    }\n    function initParams(uri, options, callback) {\n        var params = uri;\n        if (isFunction_1(options)) {\n            callback = options;\n            if (typeof uri === \"string\") {\n                params = {\n                    uri: uri\n                };\n            }\n        } else {\n            params = _extends_1({}, options, {\n                uri: uri\n            });\n        }\n        params.callback = callback;\n        return params;\n    }\n    function createXHR(uri, options, callback) {\n        options = initParams(uri, options, callback);\n        return _createXHR(options);\n    }\n    function _createXHR(options) {\n        if (typeof options.callback === \"undefined\") {\n            throw new Error(\"callback argument missing\");\n        }\n        var called = false;\n        var callback = function cbOnce(err, response, body) {\n            if (!called) {\n                called = true;\n                options.callback(err, response, body);\n            }\n        };\n        function readystatechange() {\n            if (xhr.readyState === 4) {\n                setTimeout(loadFunc, 0);\n            }\n        }\n        function getBody() {\n            // Chrome with requestType=blob throws errors arround when even testing access to responseText\n            var body = undefined;\n            if (xhr.response) {\n                body = xhr.response;\n            } else {\n                body = xhr.responseText || getXml(xhr);\n            }\n            if (isJson) {\n                try {\n                    body = JSON.parse(body);\n                } catch (e) {}\n            }\n            return body;\n        }\n        function errorFunc(evt) {\n            clearTimeout(timeoutTimer);\n            if (!(evt instanceof Error)) {\n                evt = new Error(\"\" + (evt || \"Unknown XMLHttpRequest Error\"));\n            }\n            evt.statusCode = 0;\n            return callback(evt, failureResponse);\n        } // will load the data & process the response in a special response object\n\n        function loadFunc() {\n            if (aborted) return;\n            var status;\n            clearTimeout(timeoutTimer);\n            if (options.useXDR && xhr.status === undefined) {\n                //IE8 CORS GET successful response doesn't have a status field, but body is fine\n                status = 200;\n            } else {\n                status = xhr.status === 1223 ? 204 : xhr.status;\n            }\n            var response = failureResponse;\n            var err = null;\n            if (status !== 0) {\n                response = {\n                    body: getBody(),\n                    statusCode: status,\n                    method: method,\n                    headers: {},\n                    url: uri,\n                    rawRequest: xhr\n                };\n                if (xhr.getAllResponseHeaders) {\n                    //remember xhr can in fact be XDR for CORS in IE\n                    response.headers = parseHeaders(xhr.getAllResponseHeaders());\n                }\n            } else {\n                err = new Error(\"Internal XMLHttpRequest Error\");\n            }\n            return callback(err, response, response.body);\n        }\n        var xhr = options.xhr || null;\n        if (!xhr) {\n            if (options.cors || options.useXDR) {\n                xhr = new createXHR.XDomainRequest();\n            } else {\n                xhr = new createXHR.XMLHttpRequest();\n            }\n        }\n        var key;\n        var aborted;\n        var uri = xhr.url = options.uri || options.url;\n        var method = xhr.method = options.method || \"GET\";\n        var body = options.body || options.data;\n        var headers = xhr.headers = options.headers || {};\n        var sync = !!options.sync;\n        var isJson = false;\n        var timeoutTimer;\n        var failureResponse = {\n            body: undefined,\n            headers: {},\n            statusCode: 0,\n            method: method,\n            url: uri,\n            rawRequest: xhr\n        };\n        if (\"json\" in options && options.json !== false) {\n            isJson = true;\n            headers[\"accept\"] || headers[\"Accept\"] || (headers[\"Accept\"] = \"application/json\"); //Don't override existing accept header declared by user\n\n            if (method !== \"GET\" && method !== \"HEAD\") {\n                headers[\"content-type\"] || headers[\"Content-Type\"] || (headers[\"Content-Type\"] = \"application/json\"); //Don't override existing accept header declared by user\n\n                body = JSON.stringify(options.json === true ? body : options.json);\n            }\n        }\n        xhr.onreadystatechange = readystatechange;\n        xhr.onload = loadFunc;\n        xhr.onerror = errorFunc; // IE9 must have onprogress be set to a unique function.\n\n        xhr.onprogress = function () {// IE must die\n        };\n        xhr.onabort = function () {\n            aborted = true;\n        };\n        xhr.ontimeout = errorFunc;\n        xhr.open(method, uri, !sync, options.username, options.password); //has to be after open\n\n        if (!sync) {\n            xhr.withCredentials = !!options.withCredentials;\n        } // Cannot set timeout with sync request\n        // not setting timeout on the xhr object, because of old webkits etc. not handling that correctly\n        // both npm's request and jquery 1.x use this kind of timeout, so this is being consistent\n\n        if (!sync && options.timeout > 0) {\n            timeoutTimer = setTimeout(function () {\n                if (aborted) return;\n                aborted = true; //IE9 may still call readystatechange\n\n                xhr.abort(\"timeout\");\n                var e = new Error(\"XMLHttpRequest timeout\");\n                e.code = \"ETIMEDOUT\";\n                errorFunc(e);\n            }, options.timeout);\n        }\n        if (xhr.setRequestHeader) {\n            for (key in headers) {\n                if (headers.hasOwnProperty(key)) {\n                    xhr.setRequestHeader(key, headers[key]);\n                }\n            }\n        } else if (options.headers && !isEmpty(options.headers)) {\n            throw new Error(\"Headers cannot be set on an XDomainRequest object\");\n        }\n        if (\"responseType\" in options) {\n            xhr.responseType = options.responseType;\n        }\n        if (\"beforeSend\" in options && typeof options.beforeSend === \"function\") {\n            options.beforeSend(xhr);\n        } // Microsoft Edge browser sends \"undefined\" when send is called with undefined value.\n        // XMLHttpRequest spec says to pass null as body to indicate no body\n        // See https://github.com/naugtur/xhr/issues/100.\n\n        xhr.send(body || null);\n        return xhr;\n    }\n    function getXml(xhr) {\n        // xhr.responseXML will throw Exception \"InvalidStateError\" or \"DOMException\"\n        // See https://developer.mozilla.org/en-US/docs/Web/API/XMLHttpRequest/responseXML.\n        try {\n            if (xhr.responseType === \"document\") {\n                return xhr.responseXML;\n            }\n            var firefoxBugTakenEffect = xhr.responseXML && xhr.responseXML.documentElement.nodeName === \"parsererror\";\n            if (xhr.responseType === \"\" && !firefoxBugTakenEffect) {\n                return xhr.responseXML;\n            }\n        } catch (e) {}\n        return null;\n    }\n    function noop$1() {}\n    lib.default = default_1;\n\n    /**\n     * @file text-track.js\n     */\n\n    /**\n     * Takes a webvtt file contents and parses it into cues\n     *\n     * @param {string} srcContent\n     *        webVTT file contents\n     *\n     * @param {TextTrack} track\n     *        TextTrack to add cues to. Cues come from the srcContent.\n     *\n     * @private\n     */\n    const parseCues = function (srcContent, track) {\n        const parser = new window.WebVTT.Parser(window, window.vttjs, window.WebVTT.StringDecoder());\n        const errors = [];\n        parser.oncue = function (cue) {\n            track.addCue(cue);\n        };\n        parser.onparsingerror = function (error) {\n            errors.push(error);\n        };\n        parser.onflush = function () {\n            track.trigger({\n                type: 'loadeddata',\n                target: track\n            });\n        };\n        parser.parse(srcContent);\n        if (errors.length > 0) {\n            if (window.console && window.console.groupCollapsed) {\n                window.console.groupCollapsed(`Text Track parsing errors for ${track.src}`);\n            }\n            errors.forEach(error => log$1.error(error));\n            if (window.console && window.console.groupEnd) {\n                window.console.groupEnd();\n            }\n        }\n        parser.flush();\n    };\n\n    /**\n     * Load a `TextTrack` from a specified url.\n     *\n     * @param {string} src\n     *        Url to load track from.\n     *\n     * @param {TextTrack} track\n     *        Track to add cues to. Comes from the content at the end of `url`.\n     *\n     * @private\n     */\n    const loadTrack = function (src, track) {\n        const opts = {\n            uri: src\n        };\n        const crossOrigin = isCrossOrigin(src);\n        if (crossOrigin) {\n            opts.cors = crossOrigin;\n        }\n        const withCredentials = track.tech_.crossOrigin() === 'use-credentials';\n        if (withCredentials) {\n            opts.withCredentials = withCredentials;\n        }\n        lib(opts, bind_(this, function (err, response, responseBody) {\n            if (err) {\n                return log$1.error(err, response);\n            }\n            track.loaded_ = true;\n\n            // Make sure that vttjs has loaded, otherwise, wait till it finished loading\n            // NOTE: this is only used for the alt/video.novtt.js build\n            if (typeof window.WebVTT !== 'function') {\n                if (track.tech_) {\n                    // to prevent use before define eslint error, we define loadHandler\n                    // as a let here\n                    track.tech_.any(['vttjsloaded', 'vttjserror'], event => {\n                        if (event.type === 'vttjserror') {\n                            log$1.error(`vttjs failed to load, stopping trying to process ${track.src}`);\n                            return;\n                        }\n                        return parseCues(responseBody, track);\n                    });\n                }\n            } else {\n                parseCues(responseBody, track);\n            }\n        }));\n    };\n\n    /**\n     * A representation of a single `TextTrack`.\n     *\n     * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#texttrack}\n     * @extends Track\n     */\n    class TextTrack extends Track {\n        /**\n         * Create an instance of this class.\n         *\n         * @param {Object} options={}\n         *        Object of option names and values\n         *\n         * @param { import('../tech/tech').default } options.tech\n         *        A reference to the tech that owns this TextTrack.\n         *\n         * @param {TextTrack~Kind} [options.kind='subtitles']\n         *        A valid text track kind.\n         *\n         * @param {TextTrack~Mode} [options.mode='disabled']\n         *        A valid text track mode.\n         *\n         * @param {string} [options.id='vjs_track_' + Guid.newGUID()]\n         *        A unique id for this TextTrack.\n         *\n         * @param {string} [options.label='']\n         *        The menu label for this track.\n         *\n         * @param {string} [options.language='']\n         *        A valid two character language code.\n         *\n         * @param {string} [options.srclang='']\n         *        A valid two character language code. An alternative, but deprioritized\n         *        version of `options.language`\n         *\n         * @param {string} [options.src]\n         *        A url to TextTrack cues.\n         *\n         * @param {boolean} [options.default]\n         *        If this track should default to on or off.\n         */\n        constructor(options = {}) {\n            if (!options.tech) {\n                throw new Error('A tech was not provided.');\n            }\n            const settings = merge$2(options, {\n                kind: TextTrackKind[options.kind] || 'subtitles',\n                language: options.language || options.srclang || ''\n            });\n            let mode = TextTrackMode[settings.mode] || 'disabled';\n            const default_ = settings.default;\n            if (settings.kind === 'metadata' || settings.kind === 'chapters') {\n                mode = 'hidden';\n            }\n            super(settings);\n            this.tech_ = settings.tech;\n            this.cues_ = [];\n            this.activeCues_ = [];\n            this.preload_ = this.tech_.preloadTextTracks !== false;\n            const cues = new TextTrackCueList(this.cues_);\n            const activeCues = new TextTrackCueList(this.activeCues_);\n            let changed = false;\n            this.timeupdateHandler = bind_(this, function (event = {}) {\n                if (this.tech_.isDisposed()) {\n                    return;\n                }\n                if (!this.tech_.isReady_) {\n                    if (event.type !== 'timeupdate') {\n                        this.rvf_ = this.tech_.requestVideoFrameCallback(this.timeupdateHandler);\n                    }\n                    return;\n                }\n\n                // Accessing this.activeCues for the side-effects of updating itself\n                // due to its nature as a getter function. Do not remove or cues will\n                // stop updating!\n                // Use the setter to prevent deletion from uglify (pure_getters rule)\n                this.activeCues = this.activeCues;\n                if (changed) {\n                    this.trigger('cuechange');\n                    changed = false;\n                }\n                if (event.type !== 'timeupdate') {\n                    this.rvf_ = this.tech_.requestVideoFrameCallback(this.timeupdateHandler);\n                }\n            });\n            const disposeHandler = () => {\n                this.stopTracking();\n            };\n            this.tech_.one('dispose', disposeHandler);\n            if (mode !== 'disabled') {\n                this.startTracking();\n            }\n            Object.defineProperties(this, {\n                /**\n                 * @memberof TextTrack\n                 * @member {boolean} default\n                 *         If this track was set to be on or off by default. Cannot be changed after\n                 *         creation.\n                 * @instance\n                 *\n                 * @readonly\n                 */\n                default: {\n                    get() {\n                        return default_;\n                    },\n                    set() {}\n                },\n                /**\n                 * @memberof TextTrack\n                 * @member {string} mode\n                 *         Set the mode of this TextTrack to a valid {@link TextTrack~Mode}. Will\n                 *         not be set if setting to an invalid mode.\n                 * @instance\n                 *\n                 * @fires TextTrack#modechange\n                 */\n                mode: {\n                    get() {\n                        return mode;\n                    },\n                    set(newMode) {\n                        if (!TextTrackMode[newMode]) {\n                            return;\n                        }\n                        if (mode === newMode) {\n                            return;\n                        }\n                        mode = newMode;\n                        if (!this.preload_ && mode !== 'disabled' && this.cues.length === 0) {\n                            // On-demand load.\n                            loadTrack(this.src, this);\n                        }\n                        this.stopTracking();\n                        if (mode !== 'disabled') {\n                            this.startTracking();\n                        }\n                        /**\n                         * An event that fires when mode changes on this track. This allows\n                         * the TextTrackList that holds this track to act accordingly.\n                         *\n                         * > Note: This is not part of the spec!\n                         *\n                         * @event TextTrack#modechange\n                         * @type {Event}\n                         */\n                        this.trigger('modechange');\n                    }\n                },\n                /**\n                 * @memberof TextTrack\n                 * @member {TextTrackCueList} cues\n                 *         The text track cue list for this TextTrack.\n                 * @instance\n                 */\n                cues: {\n                    get() {\n                        if (!this.loaded_) {\n                            return null;\n                        }\n                        return cues;\n                    },\n                    set() {}\n                },\n                /**\n                 * @memberof TextTrack\n                 * @member {TextTrackCueList} activeCues\n                 *         The list text track cues that are currently active for this TextTrack.\n                 * @instance\n                 */\n                activeCues: {\n                    get() {\n                        if (!this.loaded_) {\n                            return null;\n                        }\n\n                        // nothing to do\n                        if (this.cues.length === 0) {\n                            return activeCues;\n                        }\n                        const ct = this.tech_.currentTime();\n                        const active = [];\n                        for (let i = 0, l = this.cues.length; i < l; i++) {\n                            const cue = this.cues[i];\n                            if (cue.startTime <= ct && cue.endTime >= ct) {\n                                active.push(cue);\n                            }\n                        }\n                        changed = false;\n                        if (active.length !== this.activeCues_.length) {\n                            changed = true;\n                        } else {\n                            for (let i = 0; i < active.length; i++) {\n                                if (this.activeCues_.indexOf(active[i]) === -1) {\n                                    changed = true;\n                                }\n                            }\n                        }\n                        this.activeCues_ = active;\n                        activeCues.setCues_(this.activeCues_);\n                        return activeCues;\n                    },\n                    // /!\\ Keep this setter empty (see the timeupdate handler above)\n                    set() {}\n                }\n            });\n            if (settings.src) {\n                this.src = settings.src;\n                if (!this.preload_) {\n                    // Tracks will load on-demand.\n                    // Act like we're loaded for other purposes.\n                    this.loaded_ = true;\n                }\n                if (this.preload_ || settings.kind !== 'subtitles' && settings.kind !== 'captions') {\n                    loadTrack(this.src, this);\n                }\n            } else {\n                this.loaded_ = true;\n            }\n        }\n        startTracking() {\n            // More precise cues based on requestVideoFrameCallback with a requestAnimationFram fallback\n            this.rvf_ = this.tech_.requestVideoFrameCallback(this.timeupdateHandler);\n            // Also listen to timeupdate in case rVFC/rAF stops (window in background, audio in video el)\n            this.tech_.on('timeupdate', this.timeupdateHandler);\n        }\n        stopTracking() {\n            if (this.rvf_) {\n                this.tech_.cancelVideoFrameCallback(this.rvf_);\n                this.rvf_ = undefined;\n            }\n            this.tech_.off('timeupdate', this.timeupdateHandler);\n        }\n\n        /**\n         * Add a cue to the internal list of cues.\n         *\n         * @param {TextTrack~Cue} cue\n         *        The cue to add to our internal list\n         */\n        addCue(originalCue) {\n            let cue = originalCue;\n            if (window.vttjs && !(originalCue instanceof window.vttjs.VTTCue)) {\n                cue = new window.vttjs.VTTCue(originalCue.startTime, originalCue.endTime, originalCue.text);\n                for (const prop in originalCue) {\n                    if (!(prop in cue)) {\n                        cue[prop] = originalCue[prop];\n                    }\n                }\n\n                // make sure that `id` is copied over\n                cue.id = originalCue.id;\n                cue.originalCue_ = originalCue;\n            }\n            const tracks = this.tech_.textTracks();\n            for (let i = 0; i < tracks.length; i++) {\n                if (tracks[i] !== this) {\n                    tracks[i].removeCue(cue);\n                }\n            }\n            this.cues_.push(cue);\n            this.cues.setCues_(this.cues_);\n        }\n\n        /**\n         * Remove a cue from our internal list\n         *\n         * @param {TextTrack~Cue} removeCue\n         *        The cue to remove from our internal list\n         */\n        removeCue(removeCue) {\n            let i = this.cues_.length;\n            while (i--) {\n                const cue = this.cues_[i];\n                if (cue === removeCue || cue.originalCue_ && cue.originalCue_ === removeCue) {\n                    this.cues_.splice(i, 1);\n                    this.cues.setCues_(this.cues_);\n                    break;\n                }\n            }\n        }\n    }\n\n    /**\n     * cuechange - One or more cues in the track have become active or stopped being active.\n     */\n    TextTrack.prototype.allowedEvents_ = {\n        cuechange: 'cuechange'\n    };\n\n    /**\n     * A representation of a single `AudioTrack`. If it is part of an {@link AudioTrackList}\n     * only one `AudioTrack` in the list will be enabled at a time.\n     *\n     * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#audiotrack}\n     * @extends Track\n     */\n    class AudioTrack extends Track {\n        /**\n         * Create an instance of this class.\n         *\n         * @param {Object} [options={}]\n         *        Object of option names and values\n         *\n         * @param {AudioTrack~Kind} [options.kind='']\n         *        A valid audio track kind\n         *\n         * @param {string} [options.id='vjs_track_' + Guid.newGUID()]\n         *        A unique id for this AudioTrack.\n         *\n         * @param {string} [options.label='']\n         *        The menu label for this track.\n         *\n         * @param {string} [options.language='']\n         *        A valid two character language code.\n         *\n         * @param {boolean} [options.enabled]\n         *        If this track is the one that is currently playing. If this track is part of\n         *        an {@link AudioTrackList}, only one {@link AudioTrack} will be enabled.\n         */\n        constructor(options = {}) {\n            const settings = merge$2(options, {\n                kind: AudioTrackKind[options.kind] || ''\n            });\n            super(settings);\n            let enabled = false;\n\n            /**\n             * @memberof AudioTrack\n             * @member {boolean} enabled\n             *         If this `AudioTrack` is enabled or not. When setting this will\n             *         fire {@link AudioTrack#enabledchange} if the state of enabled is changed.\n             * @instance\n             *\n             * @fires VideoTrack#selectedchange\n             */\n            Object.defineProperty(this, 'enabled', {\n                get() {\n                    return enabled;\n                },\n                set(newEnabled) {\n                    // an invalid or unchanged value\n                    if (typeof newEnabled !== 'boolean' || newEnabled === enabled) {\n                        return;\n                    }\n                    enabled = newEnabled;\n\n                    /**\n                     * An event that fires when enabled changes on this track. This allows\n                     * the AudioTrackList that holds this track to act accordingly.\n                     *\n                     * > Note: This is not part of the spec! Native tracks will do\n                     *         this internally without an event.\n                     *\n                     * @event AudioTrack#enabledchange\n                     * @type {Event}\n                     */\n                    this.trigger('enabledchange');\n                }\n            });\n\n            // if the user sets this track to selected then\n            // set selected to that true value otherwise\n            // we keep it false\n            if (settings.enabled) {\n                this.enabled = settings.enabled;\n            }\n            this.loaded_ = true;\n        }\n    }\n\n    /**\n     * A representation of a single `VideoTrack`.\n     *\n     * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#videotrack}\n     * @extends Track\n     */\n    class VideoTrack extends Track {\n        /**\n         * Create an instance of this class.\n         *\n         * @param {Object} [options={}]\n         *        Object of option names and values\n         *\n         * @param {string} [options.kind='']\n         *        A valid {@link VideoTrack~Kind}\n         *\n         * @param {string} [options.id='vjs_track_' + Guid.newGUID()]\n         *        A unique id for this AudioTrack.\n         *\n         * @param {string} [options.label='']\n         *        The menu label for this track.\n         *\n         * @param {string} [options.language='']\n         *        A valid two character language code.\n         *\n         * @param {boolean} [options.selected]\n         *        If this track is the one that is currently playing.\n         */\n        constructor(options = {}) {\n            const settings = merge$2(options, {\n                kind: VideoTrackKind[options.kind] || ''\n            });\n            super(settings);\n            let selected = false;\n\n            /**\n             * @memberof VideoTrack\n             * @member {boolean} selected\n             *         If this `VideoTrack` is selected or not. When setting this will\n             *         fire {@link VideoTrack#selectedchange} if the state of selected changed.\n             * @instance\n             *\n             * @fires VideoTrack#selectedchange\n             */\n            Object.defineProperty(this, 'selected', {\n                get() {\n                    return selected;\n                },\n                set(newSelected) {\n                    // an invalid or unchanged value\n                    if (typeof newSelected !== 'boolean' || newSelected === selected) {\n                        return;\n                    }\n                    selected = newSelected;\n\n                    /**\n                     * An event that fires when selected changes on this track. This allows\n                     * the VideoTrackList that holds this track to act accordingly.\n                     *\n                     * > Note: This is not part of the spec! Native tracks will do\n                     *         this internally without an event.\n                     *\n                     * @event VideoTrack#selectedchange\n                     * @type {Event}\n                     */\n                    this.trigger('selectedchange');\n                }\n            });\n\n            // if the user sets this track to selected then\n            // set selected to that true value otherwise\n            // we keep it false\n            if (settings.selected) {\n                this.selected = settings.selected;\n            }\n        }\n    }\n\n    /**\n     * @file html-track-element.js\n     */\n\n    /**\n     * A single track represented in the DOM.\n     *\n     * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#htmltrackelement}\n     * @extends EventTarget\n     */\n    class HTMLTrackElement extends EventTarget$2 {\n        /**\n         * Create an instance of this class.\n         *\n         * @param {Object} options={}\n         *        Object of option names and values\n         *\n         * @param { import('../tech/tech').default } options.tech\n         *        A reference to the tech that owns this HTMLTrackElement.\n         *\n         * @param {TextTrack~Kind} [options.kind='subtitles']\n         *        A valid text track kind.\n         *\n         * @param {TextTrack~Mode} [options.mode='disabled']\n         *        A valid text track mode.\n         *\n         * @param {string} [options.id='vjs_track_' + Guid.newGUID()]\n         *        A unique id for this TextTrack.\n         *\n         * @param {string} [options.label='']\n         *        The menu label for this track.\n         *\n         * @param {string} [options.language='']\n         *        A valid two character language code.\n         *\n         * @param {string} [options.srclang='']\n         *        A valid two character language code. An alternative, but deprioritized\n         *        version of `options.language`\n         *\n         * @param {string} [options.src]\n         *        A url to TextTrack cues.\n         *\n         * @param {boolean} [options.default]\n         *        If this track should default to on or off.\n         */\n        constructor(options = {}) {\n            super();\n            let readyState;\n            const track = new TextTrack(options);\n            this.kind = track.kind;\n            this.src = track.src;\n            this.srclang = track.language;\n            this.label = track.label;\n            this.default = track.default;\n            Object.defineProperties(this, {\n                /**\n                 * @memberof HTMLTrackElement\n                 * @member {HTMLTrackElement~ReadyState} readyState\n                 *         The current ready state of the track element.\n                 * @instance\n                 */\n                readyState: {\n                    get() {\n                        return readyState;\n                    }\n                },\n                /**\n                 * @memberof HTMLTrackElement\n                 * @member {TextTrack} track\n                 *         The underlying TextTrack object.\n                 * @instance\n                 *\n                 */\n                track: {\n                    get() {\n                        return track;\n                    }\n                }\n            });\n            readyState = HTMLTrackElement.NONE;\n\n            /**\n             * @listens TextTrack#loadeddata\n             * @fires HTMLTrackElement#load\n             */\n            track.addEventListener('loadeddata', () => {\n                readyState = HTMLTrackElement.LOADED;\n                this.trigger({\n                    type: 'load',\n                    target: this\n                });\n            });\n        }\n    }\n    HTMLTrackElement.prototype.allowedEvents_ = {\n        load: 'load'\n    };\n\n    /**\n     * The text track not loaded state.\n     *\n     * @type {number}\n     * @static\n     */\n    HTMLTrackElement.NONE = 0;\n\n    /**\n     * The text track loading state.\n     *\n     * @type {number}\n     * @static\n     */\n    HTMLTrackElement.LOADING = 1;\n\n    /**\n     * The text track loaded state.\n     *\n     * @type {number}\n     * @static\n     */\n    HTMLTrackElement.LOADED = 2;\n\n    /**\n     * The text track failed to load state.\n     *\n     * @type {number}\n     * @static\n     */\n    HTMLTrackElement.ERROR = 3;\n\n    /*\n   * This file contains all track properties that are used in\n   * player.js, tech.js, html5.js and possibly other techs in the future.\n   */\n\n    const NORMAL = {\n        audio: {\n            ListClass: AudioTrackList,\n            TrackClass: AudioTrack,\n            capitalName: 'Audio'\n        },\n        video: {\n            ListClass: VideoTrackList,\n            TrackClass: VideoTrack,\n            capitalName: 'Video'\n        },\n        text: {\n            ListClass: TextTrackList,\n            TrackClass: TextTrack,\n            capitalName: 'Text'\n        }\n    };\n    Object.keys(NORMAL).forEach(function (type) {\n        NORMAL[type].getterName = `${type}Tracks`;\n        NORMAL[type].privateName = `${type}Tracks_`;\n    });\n    const REMOTE = {\n        remoteText: {\n            ListClass: TextTrackList,\n            TrackClass: TextTrack,\n            capitalName: 'RemoteText',\n            getterName: 'remoteTextTracks',\n            privateName: 'remoteTextTracks_'\n        },\n        remoteTextEl: {\n            ListClass: HtmlTrackElementList,\n            TrackClass: HTMLTrackElement,\n            capitalName: 'RemoteTextTrackEls',\n            getterName: 'remoteTextTrackEls',\n            privateName: 'remoteTextTrackEls_'\n        }\n    };\n    const ALL = Object.assign({}, NORMAL, REMOTE);\n    REMOTE.names = Object.keys(REMOTE);\n    NORMAL.names = Object.keys(NORMAL);\n    ALL.names = [].concat(REMOTE.names).concat(NORMAL.names);\n\n    var minDoc = {};\n\n    var topLevel = typeof commonjsGlobal !== 'undefined' ? commonjsGlobal : typeof window !== 'undefined' ? window : {};\n    var doccy;\n    if (typeof document !== 'undefined') {\n        doccy = document;\n    } else {\n        doccy = topLevel['__GLOBAL_DOCUMENT_CACHE@4'];\n        if (!doccy) {\n            doccy = topLevel['__GLOBAL_DOCUMENT_CACHE@4'] = minDoc;\n        }\n    }\n    var document_1 = doccy;\n\n    /**\n     * Copyright 2013 vtt.js Contributors\n     *\n     * Licensed under the Apache License, Version 2.0 (the \"License\");\n     * you may not use this file except in compliance with the License.\n     * You may obtain a copy of the License at\n     *\n     *   http://www.apache.org/licenses/LICENSE-2.0\n     *\n     * Unless required by applicable law or agreed to in writing, software\n     * distributed under the License is distributed on an \"AS IS\" BASIS,\n     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n     * See the License for the specific language governing permissions and\n     * limitations under the License.\n     */\n\n    /* -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */\n    /* vim: set shiftwidth=2 tabstop=2 autoindent cindent expandtab: */\n\n    var _objCreate = Object.create || function () {\n        function F() {}\n        return function (o) {\n            if (arguments.length !== 1) {\n                throw new Error('Object.create shim only accepts one parameter.');\n            }\n            F.prototype = o;\n            return new F();\n        };\n    }();\n\n    // Creates a new ParserError object from an errorData object. The errorData\n    // object should have default code and message properties. The default message\n    // property can be overriden by passing in a message parameter.\n    // See ParsingError.Errors below for acceptable errors.\n    function ParsingError(errorData, message) {\n        this.name = \"ParsingError\";\n        this.code = errorData.code;\n        this.message = message || errorData.message;\n    }\n    ParsingError.prototype = _objCreate(Error.prototype);\n    ParsingError.prototype.constructor = ParsingError;\n\n    // ParsingError metadata for acceptable ParsingErrors.\n    ParsingError.Errors = {\n        BadSignature: {\n            code: 0,\n            message: \"Malformed WebVTT signature.\"\n        },\n        BadTimeStamp: {\n            code: 1,\n            message: \"Malformed time stamp.\"\n        }\n    };\n\n    // Try to parse input as a time stamp.\n    function parseTimeStamp(input) {\n        function computeSeconds(h, m, s, f) {\n            return (h | 0) * 3600 + (m | 0) * 60 + (s | 0) + (f | 0) / 1000;\n        }\n        var m = input.match(/^(\\d+):(\\d{1,2})(:\\d{1,2})?\\.(\\d{3})/);\n        if (!m) {\n            return null;\n        }\n        if (m[3]) {\n            // Timestamp takes the form of [hours]:[minutes]:[seconds].[milliseconds]\n            return computeSeconds(m[1], m[2], m[3].replace(\":\", \"\"), m[4]);\n        } else if (m[1] > 59) {\n            // Timestamp takes the form of [hours]:[minutes].[milliseconds]\n            // First position is hours as it's over 59.\n            return computeSeconds(m[1], m[2], 0, m[4]);\n        } else {\n            // Timestamp takes the form of [minutes]:[seconds].[milliseconds]\n            return computeSeconds(0, m[1], m[2], m[4]);\n        }\n    }\n\n    // A settings object holds key/value pairs and will ignore anything but the first\n    // assignment to a specific key.\n    function Settings() {\n        this.values = _objCreate(null);\n    }\n    Settings.prototype = {\n        // Only accept the first assignment to any key.\n        set: function (k, v) {\n            if (!this.get(k) && v !== \"\") {\n                this.values[k] = v;\n            }\n        },\n        // Return the value for a key, or a default value.\n        // If 'defaultKey' is passed then 'dflt' is assumed to be an object with\n        // a number of possible default values as properties where 'defaultKey' is\n        // the key of the property that will be chosen; otherwise it's assumed to be\n        // a single value.\n        get: function (k, dflt, defaultKey) {\n            if (defaultKey) {\n                return this.has(k) ? this.values[k] : dflt[defaultKey];\n            }\n            return this.has(k) ? this.values[k] : dflt;\n        },\n        // Check whether we have a value for a key.\n        has: function (k) {\n            return k in this.values;\n        },\n        // Accept a setting if its one of the given alternatives.\n        alt: function (k, v, a) {\n            for (var n = 0; n < a.length; ++n) {\n                if (v === a[n]) {\n                    this.set(k, v);\n                    break;\n                }\n            }\n        },\n        // Accept a setting if its a valid (signed) integer.\n        integer: function (k, v) {\n            if (/^-?\\d+$/.test(v)) {\n                // integer\n                this.set(k, parseInt(v, 10));\n            }\n        },\n        // Accept a setting if its a valid percentage.\n        percent: function (k, v) {\n            if (v.match(/^([\\d]{1,3})(\\.[\\d]*)?%$/)) {\n                v = parseFloat(v);\n                if (v >= 0 && v <= 100) {\n                    this.set(k, v);\n                    return true;\n                }\n            }\n            return false;\n        }\n    };\n\n    // Helper function to parse input into groups separated by 'groupDelim', and\n    // interprete each group as a key/value pair separated by 'keyValueDelim'.\n    function parseOptions(input, callback, keyValueDelim, groupDelim) {\n        var groups = groupDelim ? input.split(groupDelim) : [input];\n        for (var i in groups) {\n            if (typeof groups[i] !== \"string\") {\n                continue;\n            }\n            var kv = groups[i].split(keyValueDelim);\n            if (kv.length !== 2) {\n                continue;\n            }\n            var k = kv[0].trim();\n            var v = kv[1].trim();\n            callback(k, v);\n        }\n    }\n    function parseCue(input, cue, regionList) {\n        // Remember the original input if we need to throw an error.\n        var oInput = input;\n        // 4.1 WebVTT timestamp\n        function consumeTimeStamp() {\n            var ts = parseTimeStamp(input);\n            if (ts === null) {\n                throw new ParsingError(ParsingError.Errors.BadTimeStamp, \"Malformed timestamp: \" + oInput);\n            }\n            // Remove time stamp from input.\n            input = input.replace(/^[^\\sa-zA-Z-]+/, \"\");\n            return ts;\n        }\n\n        // 4.4.2 WebVTT cue settings\n        function consumeCueSettings(input, cue) {\n            var settings = new Settings();\n            parseOptions(input, function (k, v) {\n                switch (k) {\n                    case \"region\":\n                        // Find the last region we parsed with the same region id.\n                        for (var i = regionList.length - 1; i >= 0; i--) {\n                            if (regionList[i].id === v) {\n                                settings.set(k, regionList[i].region);\n                                break;\n                            }\n                        }\n                        break;\n                    case \"vertical\":\n                        settings.alt(k, v, [\"rl\", \"lr\"]);\n                        break;\n                    case \"line\":\n                        var vals = v.split(\",\"),\n                            vals0 = vals[0];\n                        settings.integer(k, vals0);\n                        settings.percent(k, vals0) ? settings.set(\"snapToLines\", false) : null;\n                        settings.alt(k, vals0, [\"auto\"]);\n                        if (vals.length === 2) {\n                            settings.alt(\"lineAlign\", vals[1], [\"start\", \"center\", \"end\"]);\n                        }\n                        break;\n                    case \"position\":\n                        vals = v.split(\",\");\n                        settings.percent(k, vals[0]);\n                        if (vals.length === 2) {\n                            settings.alt(\"positionAlign\", vals[1], [\"start\", \"center\", \"end\"]);\n                        }\n                        break;\n                    case \"size\":\n                        settings.percent(k, v);\n                        break;\n                    case \"align\":\n                        settings.alt(k, v, [\"start\", \"center\", \"end\", \"left\", \"right\"]);\n                        break;\n                }\n            }, /:/, /\\s/);\n\n            // Apply default values for any missing fields.\n            cue.region = settings.get(\"region\", null);\n            cue.vertical = settings.get(\"vertical\", \"\");\n            try {\n                cue.line = settings.get(\"line\", \"auto\");\n            } catch (e) {}\n            cue.lineAlign = settings.get(\"lineAlign\", \"start\");\n            cue.snapToLines = settings.get(\"snapToLines\", true);\n            cue.size = settings.get(\"size\", 100);\n            // Safari still uses the old middle value and won't accept center\n            try {\n                cue.align = settings.get(\"align\", \"center\");\n            } catch (e) {\n                cue.align = settings.get(\"align\", \"middle\");\n            }\n            try {\n                cue.position = settings.get(\"position\", \"auto\");\n            } catch (e) {\n                cue.position = settings.get(\"position\", {\n                    start: 0,\n                    left: 0,\n                    center: 50,\n                    middle: 50,\n                    end: 100,\n                    right: 100\n                }, cue.align);\n            }\n            cue.positionAlign = settings.get(\"positionAlign\", {\n                start: \"start\",\n                left: \"start\",\n                center: \"center\",\n                middle: \"center\",\n                end: \"end\",\n                right: \"end\"\n            }, cue.align);\n        }\n        function skipWhitespace() {\n            input = input.replace(/^\\s+/, \"\");\n        }\n\n        // 4.1 WebVTT cue timings.\n        skipWhitespace();\n        cue.startTime = consumeTimeStamp(); // (1) collect cue start time\n        skipWhitespace();\n        if (input.substr(0, 3) !== \"-->\") {\n            // (3) next characters must match \"-->\"\n            throw new ParsingError(ParsingError.Errors.BadTimeStamp, \"Malformed time stamp (time stamps must be separated by '-->'): \" + oInput);\n        }\n        input = input.substr(3);\n        skipWhitespace();\n        cue.endTime = consumeTimeStamp(); // (5) collect cue end time\n\n        // 4.1 WebVTT cue settings list.\n        skipWhitespace();\n        consumeCueSettings(input, cue);\n    }\n\n    // When evaluating this file as part of a Webpack bundle for server\n    // side rendering, `document` is an empty object.\n    var TEXTAREA_ELEMENT = document_1.createElement && document_1.createElement(\"textarea\");\n    var TAG_NAME = {\n        c: \"span\",\n        i: \"i\",\n        b: \"b\",\n        u: \"u\",\n        ruby: \"ruby\",\n        rt: \"rt\",\n        v: \"span\",\n        lang: \"span\"\n    };\n\n    // 5.1 default text color\n    // 5.2 default text background color is equivalent to text color with bg_ prefix\n    var DEFAULT_COLOR_CLASS = {\n        white: 'rgba(255,255,255,1)',\n        lime: 'rgba(0,255,0,1)',\n        cyan: 'rgba(0,255,255,1)',\n        red: 'rgba(255,0,0,1)',\n        yellow: 'rgba(255,255,0,1)',\n        magenta: 'rgba(255,0,255,1)',\n        blue: 'rgba(0,0,255,1)',\n        black: 'rgba(0,0,0,1)'\n    };\n    var TAG_ANNOTATION = {\n        v: \"title\",\n        lang: \"lang\"\n    };\n    var NEEDS_PARENT = {\n        rt: \"ruby\"\n    };\n\n    // Parse content into a document fragment.\n    function parseContent(window, input) {\n        function nextToken() {\n            // Check for end-of-string.\n            if (!input) {\n                return null;\n            }\n\n            // Consume 'n' characters from the input.\n            function consume(result) {\n                input = input.substr(result.length);\n                return result;\n            }\n            var m = input.match(/^([^<]*)(<[^>]*>?)?/);\n            // If there is some text before the next tag, return it, otherwise return\n            // the tag.\n            return consume(m[1] ? m[1] : m[2]);\n        }\n        function unescape(s) {\n            TEXTAREA_ELEMENT.innerHTML = s;\n            s = TEXTAREA_ELEMENT.textContent;\n            TEXTAREA_ELEMENT.textContent = \"\";\n            return s;\n        }\n        function shouldAdd(current, element) {\n            return !NEEDS_PARENT[element.localName] || NEEDS_PARENT[element.localName] === current.localName;\n        }\n\n        // Create an element for this tag.\n        function createElement(type, annotation) {\n            var tagName = TAG_NAME[type];\n            if (!tagName) {\n                return null;\n            }\n            var element = window.document.createElement(tagName);\n            var name = TAG_ANNOTATION[type];\n            if (name && annotation) {\n                element[name] = annotation.trim();\n            }\n            return element;\n        }\n        var rootDiv = window.document.createElement(\"div\"),\n            current = rootDiv,\n            t,\n            tagStack = [];\n        while ((t = nextToken()) !== null) {\n            if (t[0] === '<') {\n                if (t[1] === \"/\") {\n                    // If the closing tag matches, move back up to the parent node.\n                    if (tagStack.length && tagStack[tagStack.length - 1] === t.substr(2).replace(\">\", \"\")) {\n                        tagStack.pop();\n                        current = current.parentNode;\n                    }\n                    // Otherwise just ignore the end tag.\n                    continue;\n                }\n                var ts = parseTimeStamp(t.substr(1, t.length - 2));\n                var node;\n                if (ts) {\n                    // Timestamps are lead nodes as well.\n                    node = window.document.createProcessingInstruction(\"timestamp\", ts);\n                    current.appendChild(node);\n                    continue;\n                }\n                var m = t.match(/^<([^.\\s/0-9>]+)(\\.[^\\s\\\\>]+)?([^>\\\\]+)?(\\\\?)>?$/);\n                // If we can't parse the tag, skip to the next tag.\n                if (!m) {\n                    continue;\n                }\n                // Try to construct an element, and ignore the tag if we couldn't.\n                node = createElement(m[1], m[3]);\n                if (!node) {\n                    continue;\n                }\n                // Determine if the tag should be added based on the context of where it\n                // is placed in the cuetext.\n                if (!shouldAdd(current, node)) {\n                    continue;\n                }\n                // Set the class list (as a list of classes, separated by space).\n                if (m[2]) {\n                    var classes = m[2].split('.');\n                    classes.forEach(function (cl) {\n                        var bgColor = /^bg_/.test(cl);\n                        // slice out `bg_` if it's a background color\n                        var colorName = bgColor ? cl.slice(3) : cl;\n                        if (DEFAULT_COLOR_CLASS.hasOwnProperty(colorName)) {\n                            var propName = bgColor ? 'background-color' : 'color';\n                            var propValue = DEFAULT_COLOR_CLASS[colorName];\n                            node.style[propName] = propValue;\n                        }\n                    });\n                    node.className = classes.join(' ');\n                }\n                // Append the node to the current node, and enter the scope of the new\n                // node.\n                tagStack.push(m[1]);\n                current.appendChild(node);\n                current = node;\n                continue;\n            }\n\n            // Text nodes are leaf nodes.\n            current.appendChild(window.document.createTextNode(unescape(t)));\n        }\n        return rootDiv;\n    }\n\n    // This is a list of all the Unicode characters that have a strong\n    // right-to-left category. What this means is that these characters are\n    // written right-to-left for sure. It was generated by pulling all the strong\n    // right-to-left characters out of the Unicode data table. That table can\n    // found at: http://www.unicode.org/Public/UNIDATA/UnicodeData.txt\n    var strongRTLRanges = [[0x5be, 0x5be], [0x5c0, 0x5c0], [0x5c3, 0x5c3], [0x5c6, 0x5c6], [0x5d0, 0x5ea], [0x5f0, 0x5f4], [0x608, 0x608], [0x60b, 0x60b], [0x60d, 0x60d], [0x61b, 0x61b], [0x61e, 0x64a], [0x66d, 0x66f], [0x671, 0x6d5], [0x6e5, 0x6e6], [0x6ee, 0x6ef], [0x6fa, 0x70d], [0x70f, 0x710], [0x712, 0x72f], [0x74d, 0x7a5], [0x7b1, 0x7b1], [0x7c0, 0x7ea], [0x7f4, 0x7f5], [0x7fa, 0x7fa], [0x800, 0x815], [0x81a, 0x81a], [0x824, 0x824], [0x828, 0x828], [0x830, 0x83e], [0x840, 0x858], [0x85e, 0x85e], [0x8a0, 0x8a0], [0x8a2, 0x8ac], [0x200f, 0x200f], [0xfb1d, 0xfb1d], [0xfb1f, 0xfb28], [0xfb2a, 0xfb36], [0xfb38, 0xfb3c], [0xfb3e, 0xfb3e], [0xfb40, 0xfb41], [0xfb43, 0xfb44], [0xfb46, 0xfbc1], [0xfbd3, 0xfd3d], [0xfd50, 0xfd8f], [0xfd92, 0xfdc7], [0xfdf0, 0xfdfc], [0xfe70, 0xfe74], [0xfe76, 0xfefc], [0x10800, 0x10805], [0x10808, 0x10808], [0x1080a, 0x10835], [0x10837, 0x10838], [0x1083c, 0x1083c], [0x1083f, 0x10855], [0x10857, 0x1085f], [0x10900, 0x1091b], [0x10920, 0x10939], [0x1093f, 0x1093f], [0x10980, 0x109b7], [0x109be, 0x109bf], [0x10a00, 0x10a00], [0x10a10, 0x10a13], [0x10a15, 0x10a17], [0x10a19, 0x10a33], [0x10a40, 0x10a47], [0x10a50, 0x10a58], [0x10a60, 0x10a7f], [0x10b00, 0x10b35], [0x10b40, 0x10b55], [0x10b58, 0x10b72], [0x10b78, 0x10b7f], [0x10c00, 0x10c48], [0x1ee00, 0x1ee03], [0x1ee05, 0x1ee1f], [0x1ee21, 0x1ee22], [0x1ee24, 0x1ee24], [0x1ee27, 0x1ee27], [0x1ee29, 0x1ee32], [0x1ee34, 0x1ee37], [0x1ee39, 0x1ee39], [0x1ee3b, 0x1ee3b], [0x1ee42, 0x1ee42], [0x1ee47, 0x1ee47], [0x1ee49, 0x1ee49], [0x1ee4b, 0x1ee4b], [0x1ee4d, 0x1ee4f], [0x1ee51, 0x1ee52], [0x1ee54, 0x1ee54], [0x1ee57, 0x1ee57], [0x1ee59, 0x1ee59], [0x1ee5b, 0x1ee5b], [0x1ee5d, 0x1ee5d], [0x1ee5f, 0x1ee5f], [0x1ee61, 0x1ee62], [0x1ee64, 0x1ee64], [0x1ee67, 0x1ee6a], [0x1ee6c, 0x1ee72], [0x1ee74, 0x1ee77], [0x1ee79, 0x1ee7c], [0x1ee7e, 0x1ee7e], [0x1ee80, 0x1ee89], [0x1ee8b, 0x1ee9b], [0x1eea1, 0x1eea3], [0x1eea5, 0x1eea9], [0x1eeab, 0x1eebb], [0x10fffd, 0x10fffd]];\n    function isStrongRTLChar(charCode) {\n        for (var i = 0; i < strongRTLRanges.length; i++) {\n            var currentRange = strongRTLRanges[i];\n            if (charCode >= currentRange[0] && charCode <= currentRange[1]) {\n                return true;\n            }\n        }\n        return false;\n    }\n    function determineBidi(cueDiv) {\n        var nodeStack = [],\n            text = \"\",\n            charCode;\n        if (!cueDiv || !cueDiv.childNodes) {\n            return \"ltr\";\n        }\n        function pushNodes(nodeStack, node) {\n            for (var i = node.childNodes.length - 1; i >= 0; i--) {\n                nodeStack.push(node.childNodes[i]);\n            }\n        }\n        function nextTextNode(nodeStack) {\n            if (!nodeStack || !nodeStack.length) {\n                return null;\n            }\n            var node = nodeStack.pop(),\n                text = node.textContent || node.innerText;\n            if (text) {\n                // TODO: This should match all unicode type B characters (paragraph\n                // separator characters). See issue #115.\n                var m = text.match(/^.*(\\n|\\r)/);\n                if (m) {\n                    nodeStack.length = 0;\n                    return m[0];\n                }\n                return text;\n            }\n            if (node.tagName === \"ruby\") {\n                return nextTextNode(nodeStack);\n            }\n            if (node.childNodes) {\n                pushNodes(nodeStack, node);\n                return nextTextNode(nodeStack);\n            }\n        }\n        pushNodes(nodeStack, cueDiv);\n        while (text = nextTextNode(nodeStack)) {\n            for (var i = 0; i < text.length; i++) {\n                charCode = text.charCodeAt(i);\n                if (isStrongRTLChar(charCode)) {\n                    return \"rtl\";\n                }\n            }\n        }\n        return \"ltr\";\n    }\n    function computeLinePos(cue) {\n        if (typeof cue.line === \"number\" && (cue.snapToLines || cue.line >= 0 && cue.line <= 100)) {\n            return cue.line;\n        }\n        if (!cue.track || !cue.track.textTrackList || !cue.track.textTrackList.mediaElement) {\n            return -1;\n        }\n        var track = cue.track,\n            trackList = track.textTrackList,\n            count = 0;\n        for (var i = 0; i < trackList.length && trackList[i] !== track; i++) {\n            if (trackList[i].mode === \"showing\") {\n                count++;\n            }\n        }\n        return ++count * -1;\n    }\n    function StyleBox() {}\n\n    // Apply styles to a div. If there is no div passed then it defaults to the\n    // div on 'this'.\n    StyleBox.prototype.applyStyles = function (styles, div) {\n        div = div || this.div;\n        for (var prop in styles) {\n            if (styles.hasOwnProperty(prop)) {\n                div.style[prop] = styles[prop];\n            }\n        }\n    };\n    StyleBox.prototype.formatStyle = function (val, unit) {\n        return val === 0 ? 0 : val + unit;\n    };\n\n    // Constructs the computed display state of the cue (a div). Places the div\n    // into the overlay which should be a block level element (usually a div).\n    function CueStyleBox(window, cue, styleOptions) {\n        StyleBox.call(this);\n        this.cue = cue;\n\n        // Parse our cue's text into a DOM tree rooted at 'cueDiv'. This div will\n        // have inline positioning and will function as the cue background box.\n        this.cueDiv = parseContent(window, cue.text);\n        var styles = {\n            color: \"rgba(255, 255, 255, 1)\",\n            backgroundColor: \"rgba(0, 0, 0, 0.8)\",\n            position: \"relative\",\n            left: 0,\n            right: 0,\n            top: 0,\n            bottom: 0,\n            display: \"inline\",\n            writingMode: cue.vertical === \"\" ? \"horizontal-tb\" : cue.vertical === \"lr\" ? \"vertical-lr\" : \"vertical-rl\",\n            unicodeBidi: \"plaintext\"\n        };\n        this.applyStyles(styles, this.cueDiv);\n\n        // Create an absolutely positioned div that will be used to position the cue\n        // div. Note, all WebVTT cue-setting alignments are equivalent to the CSS\n        // mirrors of them except middle instead of center on Safari.\n        this.div = window.document.createElement(\"div\");\n        styles = {\n            direction: determineBidi(this.cueDiv),\n            writingMode: cue.vertical === \"\" ? \"horizontal-tb\" : cue.vertical === \"lr\" ? \"vertical-lr\" : \"vertical-rl\",\n            unicodeBidi: \"plaintext\",\n            textAlign: cue.align === \"middle\" ? \"center\" : cue.align,\n            font: styleOptions.font,\n            whiteSpace: \"pre-line\",\n            position: \"absolute\"\n        };\n        this.applyStyles(styles);\n        this.div.appendChild(this.cueDiv);\n\n        // Calculate the distance from the reference edge of the viewport to the text\n        // position of the cue box. The reference edge will be resolved later when\n        // the box orientation styles are applied.\n        var textPos = 0;\n        switch (cue.positionAlign) {\n            case \"start\":\n                textPos = cue.position;\n                break;\n            case \"center\":\n                textPos = cue.position - cue.size / 2;\n                break;\n            case \"end\":\n                textPos = cue.position - cue.size;\n                break;\n        }\n\n        // Horizontal box orientation; textPos is the distance from the left edge of the\n        // area to the left edge of the box and cue.size is the distance extending to\n        // the right from there.\n        if (cue.vertical === \"\") {\n            this.applyStyles({\n                left: this.formatStyle(textPos, \"%\"),\n                width: this.formatStyle(cue.size, \"%\")\n            });\n            // Vertical box orientation; textPos is the distance from the top edge of the\n            // area to the top edge of the box and cue.size is the height extending\n            // downwards from there.\n        } else {\n            this.applyStyles({\n                top: this.formatStyle(textPos, \"%\"),\n                height: this.formatStyle(cue.size, \"%\")\n            });\n        }\n        this.move = function (box) {\n            this.applyStyles({\n                top: this.formatStyle(box.top, \"px\"),\n                bottom: this.formatStyle(box.bottom, \"px\"),\n                left: this.formatStyle(box.left, \"px\"),\n                right: this.formatStyle(box.right, \"px\"),\n                height: this.formatStyle(box.height, \"px\"),\n                width: this.formatStyle(box.width, \"px\")\n            });\n        };\n    }\n    CueStyleBox.prototype = _objCreate(StyleBox.prototype);\n    CueStyleBox.prototype.constructor = CueStyleBox;\n\n    // Represents the co-ordinates of an Element in a way that we can easily\n    // compute things with such as if it overlaps or intersects with another Element.\n    // Can initialize it with either a StyleBox or another BoxPosition.\n    function BoxPosition(obj) {\n        // Either a BoxPosition was passed in and we need to copy it, or a StyleBox\n        // was passed in and we need to copy the results of 'getBoundingClientRect'\n        // as the object returned is readonly. All co-ordinate values are in reference\n        // to the viewport origin (top left).\n        var lh, height, width, top;\n        if (obj.div) {\n            height = obj.div.offsetHeight;\n            width = obj.div.offsetWidth;\n            top = obj.div.offsetTop;\n            var rects = (rects = obj.div.childNodes) && (rects = rects[0]) && rects.getClientRects && rects.getClientRects();\n            obj = obj.div.getBoundingClientRect();\n            // In certain cases the outter div will be slightly larger then the sum of\n            // the inner div's lines. This could be due to bold text, etc, on some platforms.\n            // In this case we should get the average line height and use that. This will\n            // result in the desired behaviour.\n            lh = rects ? Math.max(rects[0] && rects[0].height || 0, obj.height / rects.length) : 0;\n        }\n        this.left = obj.left;\n        this.right = obj.right;\n        this.top = obj.top || top;\n        this.height = obj.height || height;\n        this.bottom = obj.bottom || top + (obj.height || height);\n        this.width = obj.width || width;\n        this.lineHeight = lh !== undefined ? lh : obj.lineHeight;\n    }\n\n    // Move the box along a particular axis. Optionally pass in an amount to move\n    // the box. If no amount is passed then the default is the line height of the\n    // box.\n    BoxPosition.prototype.move = function (axis, toMove) {\n        toMove = toMove !== undefined ? toMove : this.lineHeight;\n        switch (axis) {\n            case \"+x\":\n                this.left += toMove;\n                this.right += toMove;\n                break;\n            case \"-x\":\n                this.left -= toMove;\n                this.right -= toMove;\n                break;\n            case \"+y\":\n                this.top += toMove;\n                this.bottom += toMove;\n                break;\n            case \"-y\":\n                this.top -= toMove;\n                this.bottom -= toMove;\n                break;\n        }\n    };\n\n    // Check if this box overlaps another box, b2.\n    BoxPosition.prototype.overlaps = function (b2) {\n        return this.left < b2.right && this.right > b2.left && this.top < b2.bottom && this.bottom > b2.top;\n    };\n\n    // Check if this box overlaps any other boxes in boxes.\n    BoxPosition.prototype.overlapsAny = function (boxes) {\n        for (var i = 0; i < boxes.length; i++) {\n            if (this.overlaps(boxes[i])) {\n                return true;\n            }\n        }\n        return false;\n    };\n\n    // Check if this box is within another box.\n    BoxPosition.prototype.within = function (container) {\n        return this.top >= container.top && this.bottom <= container.bottom && this.left >= container.left && this.right <= container.right;\n    };\n\n    // Check if this box is entirely within the container or it is overlapping\n    // on the edge opposite of the axis direction passed. For example, if \"+x\" is\n    // passed and the box is overlapping on the left edge of the container, then\n    // return true.\n    BoxPosition.prototype.overlapsOppositeAxis = function (container, axis) {\n        switch (axis) {\n            case \"+x\":\n                return this.left < container.left;\n            case \"-x\":\n                return this.right > container.right;\n            case \"+y\":\n                return this.top < container.top;\n            case \"-y\":\n                return this.bottom > container.bottom;\n        }\n    };\n\n    // Find the percentage of the area that this box is overlapping with another\n    // box.\n    BoxPosition.prototype.intersectPercentage = function (b2) {\n        var x = Math.max(0, Math.min(this.right, b2.right) - Math.max(this.left, b2.left)),\n            y = Math.max(0, Math.min(this.bottom, b2.bottom) - Math.max(this.top, b2.top)),\n            intersectArea = x * y;\n        return intersectArea / (this.height * this.width);\n    };\n\n    // Convert the positions from this box to CSS compatible positions using\n    // the reference container's positions. This has to be done because this\n    // box's positions are in reference to the viewport origin, whereas, CSS\n    // values are in referecne to their respective edges.\n    BoxPosition.prototype.toCSSCompatValues = function (reference) {\n        return {\n            top: this.top - reference.top,\n            bottom: reference.bottom - this.bottom,\n            left: this.left - reference.left,\n            right: reference.right - this.right,\n            height: this.height,\n            width: this.width\n        };\n    };\n\n    // Get an object that represents the box's position without anything extra.\n    // Can pass a StyleBox, HTMLElement, or another BoxPositon.\n    BoxPosition.getSimpleBoxPosition = function (obj) {\n        var height = obj.div ? obj.div.offsetHeight : obj.tagName ? obj.offsetHeight : 0;\n        var width = obj.div ? obj.div.offsetWidth : obj.tagName ? obj.offsetWidth : 0;\n        var top = obj.div ? obj.div.offsetTop : obj.tagName ? obj.offsetTop : 0;\n        obj = obj.div ? obj.div.getBoundingClientRect() : obj.tagName ? obj.getBoundingClientRect() : obj;\n        var ret = {\n            left: obj.left,\n            right: obj.right,\n            top: obj.top || top,\n            height: obj.height || height,\n            bottom: obj.bottom || top + (obj.height || height),\n            width: obj.width || width\n        };\n        return ret;\n    };\n\n    // Move a StyleBox to its specified, or next best, position. The containerBox\n    // is the box that contains the StyleBox, such as a div. boxPositions are\n    // a list of other boxes that the styleBox can't overlap with.\n    function moveBoxToLinePosition(window, styleBox, containerBox, boxPositions) {\n        // Find the best position for a cue box, b, on the video. The axis parameter\n        // is a list of axis, the order of which, it will move the box along. For example:\n        // Passing [\"+x\", \"-x\"] will move the box first along the x axis in the positive\n        // direction. If it doesn't find a good position for it there it will then move\n        // it along the x axis in the negative direction.\n        function findBestPosition(b, axis) {\n            var bestPosition,\n                specifiedPosition = new BoxPosition(b),\n                percentage = 1; // Highest possible so the first thing we get is better.\n\n            for (var i = 0; i < axis.length; i++) {\n                while (b.overlapsOppositeAxis(containerBox, axis[i]) || b.within(containerBox) && b.overlapsAny(boxPositions)) {\n                    b.move(axis[i]);\n                }\n                // We found a spot where we aren't overlapping anything. This is our\n                // best position.\n                if (b.within(containerBox)) {\n                    return b;\n                }\n                var p = b.intersectPercentage(containerBox);\n                // If we're outside the container box less then we were on our last try\n                // then remember this position as the best position.\n                if (percentage > p) {\n                    bestPosition = new BoxPosition(b);\n                    percentage = p;\n                }\n                // Reset the box position to the specified position.\n                b = new BoxPosition(specifiedPosition);\n            }\n            return bestPosition || specifiedPosition;\n        }\n        var boxPosition = new BoxPosition(styleBox),\n            cue = styleBox.cue,\n            linePos = computeLinePos(cue),\n            axis = [];\n\n        // If we have a line number to align the cue to.\n        if (cue.snapToLines) {\n            var size;\n            switch (cue.vertical) {\n                case \"\":\n                    axis = [\"+y\", \"-y\"];\n                    size = \"height\";\n                    break;\n                case \"rl\":\n                    axis = [\"+x\", \"-x\"];\n                    size = \"width\";\n                    break;\n                case \"lr\":\n                    axis = [\"-x\", \"+x\"];\n                    size = \"width\";\n                    break;\n            }\n            var step = boxPosition.lineHeight,\n                position = step * Math.round(linePos),\n                maxPosition = containerBox[size] + step,\n                initialAxis = axis[0];\n\n            // If the specified intial position is greater then the max position then\n            // clamp the box to the amount of steps it would take for the box to\n            // reach the max position.\n            if (Math.abs(position) > maxPosition) {\n                position = position < 0 ? -1 : 1;\n                position *= Math.ceil(maxPosition / step) * step;\n            }\n\n            // If computed line position returns negative then line numbers are\n            // relative to the bottom of the video instead of the top. Therefore, we\n            // need to increase our initial position by the length or width of the\n            // video, depending on the writing direction, and reverse our axis directions.\n            if (linePos < 0) {\n                position += cue.vertical === \"\" ? containerBox.height : containerBox.width;\n                axis = axis.reverse();\n            }\n\n            // Move the box to the specified position. This may not be its best\n            // position.\n            boxPosition.move(initialAxis, position);\n        } else {\n            // If we have a percentage line value for the cue.\n            var calculatedPercentage = boxPosition.lineHeight / containerBox.height * 100;\n            switch (cue.lineAlign) {\n                case \"center\":\n                    linePos -= calculatedPercentage / 2;\n                    break;\n                case \"end\":\n                    linePos -= calculatedPercentage;\n                    break;\n            }\n\n            // Apply initial line position to the cue box.\n            switch (cue.vertical) {\n                case \"\":\n                    styleBox.applyStyles({\n                        top: styleBox.formatStyle(linePos, \"%\")\n                    });\n                    break;\n                case \"rl\":\n                    styleBox.applyStyles({\n                        left: styleBox.formatStyle(linePos, \"%\")\n                    });\n                    break;\n                case \"lr\":\n                    styleBox.applyStyles({\n                        right: styleBox.formatStyle(linePos, \"%\")\n                    });\n                    break;\n            }\n            axis = [\"+y\", \"-x\", \"+x\", \"-y\"];\n\n            // Get the box position again after we've applied the specified positioning\n            // to it.\n            boxPosition = new BoxPosition(styleBox);\n        }\n        var bestPosition = findBestPosition(boxPosition, axis);\n        styleBox.move(bestPosition.toCSSCompatValues(containerBox));\n    }\n    function WebVTT$1() {\n        // Nothing\n    }\n\n    // Helper to allow strings to be decoded instead of the default binary utf8 data.\n    WebVTT$1.StringDecoder = function () {\n        return {\n            decode: function (data) {\n                if (!data) {\n                    return \"\";\n                }\n                if (typeof data !== \"string\") {\n                    throw new Error(\"Error - expected string data.\");\n                }\n                return decodeURIComponent(encodeURIComponent(data));\n            }\n        };\n    };\n    WebVTT$1.convertCueToDOMTree = function (window, cuetext) {\n        if (!window || !cuetext) {\n            return null;\n        }\n        return parseContent(window, cuetext);\n    };\n    var FONT_SIZE_PERCENT = 0.05;\n    var FONT_STYLE = \"sans-serif\";\n    var CUE_BACKGROUND_PADDING = \"1.5%\";\n\n    // Runs the processing model over the cues and regions passed to it.\n    // @param overlay A block level element (usually a div) that the computed cues\n    //                and regions will be placed into.\n    WebVTT$1.processCues = function (window, cues, overlay) {\n        if (!window || !cues || !overlay) {\n            return null;\n        }\n\n        // Remove all previous children.\n        while (overlay.firstChild) {\n            overlay.removeChild(overlay.firstChild);\n        }\n        var paddedOverlay = window.document.createElement(\"div\");\n        paddedOverlay.style.position = \"absolute\";\n        paddedOverlay.style.left = \"0\";\n        paddedOverlay.style.right = \"0\";\n        paddedOverlay.style.top = \"0\";\n        paddedOverlay.style.bottom = \"0\";\n        paddedOverlay.style.margin = CUE_BACKGROUND_PADDING;\n        overlay.appendChild(paddedOverlay);\n\n        // Determine if we need to compute the display states of the cues. This could\n        // be the case if a cue's state has been changed since the last computation or\n        // if it has not been computed yet.\n        function shouldCompute(cues) {\n            for (var i = 0; i < cues.length; i++) {\n                if (cues[i].hasBeenReset || !cues[i].displayState) {\n                    return true;\n                }\n            }\n            return false;\n        }\n\n        // We don't need to recompute the cues' display states. Just reuse them.\n        if (!shouldCompute(cues)) {\n            for (var i = 0; i < cues.length; i++) {\n                paddedOverlay.appendChild(cues[i].displayState);\n            }\n            return;\n        }\n        var boxPositions = [],\n            containerBox = BoxPosition.getSimpleBoxPosition(paddedOverlay),\n            fontSize = Math.round(containerBox.height * FONT_SIZE_PERCENT * 100) / 100;\n        var styleOptions = {\n            font: fontSize + \"px \" + FONT_STYLE\n        };\n        (function () {\n            var styleBox, cue;\n            for (var i = 0; i < cues.length; i++) {\n                cue = cues[i];\n\n                // Compute the intial position and styles of the cue div.\n                styleBox = new CueStyleBox(window, cue, styleOptions);\n                paddedOverlay.appendChild(styleBox.div);\n\n                // Move the cue div to it's correct line position.\n                moveBoxToLinePosition(window, styleBox, containerBox, boxPositions);\n\n                // Remember the computed div so that we don't have to recompute it later\n                // if we don't have too.\n                cue.displayState = styleBox.div;\n                boxPositions.push(BoxPosition.getSimpleBoxPosition(styleBox));\n            }\n        })();\n    };\n    WebVTT$1.Parser = function (window, vttjs, decoder) {\n        if (!decoder) {\n            decoder = vttjs;\n            vttjs = {};\n        }\n        if (!vttjs) {\n            vttjs = {};\n        }\n        this.window = window;\n        this.vttjs = vttjs;\n        this.state = \"INITIAL\";\n        this.buffer = \"\";\n        this.decoder = decoder || new TextDecoder(\"utf8\");\n        this.regionList = [];\n    };\n    WebVTT$1.Parser.prototype = {\n        // If the error is a ParsingError then report it to the consumer if\n        // possible. If it's not a ParsingError then throw it like normal.\n        reportOrThrowError: function (e) {\n            if (e instanceof ParsingError) {\n                this.onparsingerror && this.onparsingerror(e);\n            } else {\n                throw e;\n            }\n        },\n        parse: function (data) {\n            var self = this;\n\n            // If there is no data then we won't decode it, but will just try to parse\n            // whatever is in buffer already. This may occur in circumstances, for\n            // example when flush() is called.\n            if (data) {\n                // Try to decode the data that we received.\n                self.buffer += self.decoder.decode(data, {\n                    stream: true\n                });\n            }\n            function collectNextLine() {\n                var buffer = self.buffer;\n                var pos = 0;\n                while (pos < buffer.length && buffer[pos] !== '\\r' && buffer[pos] !== '\\n') {\n                    ++pos;\n                }\n                var line = buffer.substr(0, pos);\n                // Advance the buffer early in case we fail below.\n                if (buffer[pos] === '\\r') {\n                    ++pos;\n                }\n                if (buffer[pos] === '\\n') {\n                    ++pos;\n                }\n                self.buffer = buffer.substr(pos);\n                return line;\n            }\n\n            // 3.4 WebVTT region and WebVTT region settings syntax\n            function parseRegion(input) {\n                var settings = new Settings();\n                parseOptions(input, function (k, v) {\n                    switch (k) {\n                        case \"id\":\n                            settings.set(k, v);\n                            break;\n                        case \"width\":\n                            settings.percent(k, v);\n                            break;\n                        case \"lines\":\n                            settings.integer(k, v);\n                            break;\n                        case \"regionanchor\":\n                        case \"viewportanchor\":\n                            var xy = v.split(',');\n                            if (xy.length !== 2) {\n                                break;\n                            }\n                            // We have to make sure both x and y parse, so use a temporary\n                            // settings object here.\n                            var anchor = new Settings();\n                            anchor.percent(\"x\", xy[0]);\n                            anchor.percent(\"y\", xy[1]);\n                            if (!anchor.has(\"x\") || !anchor.has(\"y\")) {\n                                break;\n                            }\n                            settings.set(k + \"X\", anchor.get(\"x\"));\n                            settings.set(k + \"Y\", anchor.get(\"y\"));\n                            break;\n                        case \"scroll\":\n                            settings.alt(k, v, [\"up\"]);\n                            break;\n                    }\n                }, /=/, /\\s/);\n\n                // Create the region, using default values for any values that were not\n                // specified.\n                if (settings.has(\"id\")) {\n                    var region = new (self.vttjs.VTTRegion || self.window.VTTRegion)();\n                    region.width = settings.get(\"width\", 100);\n                    region.lines = settings.get(\"lines\", 3);\n                    region.regionAnchorX = settings.get(\"regionanchorX\", 0);\n                    region.regionAnchorY = settings.get(\"regionanchorY\", 100);\n                    region.viewportAnchorX = settings.get(\"viewportanchorX\", 0);\n                    region.viewportAnchorY = settings.get(\"viewportanchorY\", 100);\n                    region.scroll = settings.get(\"scroll\", \"\");\n                    // Register the region.\n                    self.onregion && self.onregion(region);\n                    // Remember the VTTRegion for later in case we parse any VTTCues that\n                    // reference it.\n                    self.regionList.push({\n                        id: settings.get(\"id\"),\n                        region: region\n                    });\n                }\n            }\n\n            // draft-pantos-http-live-streaming-20\n            // https://tools.ietf.org/html/draft-pantos-http-live-streaming-20#section-3.5\n            // 3.5 WebVTT\n            function parseTimestampMap(input) {\n                var settings = new Settings();\n                parseOptions(input, function (k, v) {\n                    switch (k) {\n                        case \"MPEGT\":\n                            settings.integer(k + 'S', v);\n                            break;\n                        case \"LOCA\":\n                            settings.set(k + 'L', parseTimeStamp(v));\n                            break;\n                    }\n                }, /[^\\d]:/, /,/);\n                self.ontimestampmap && self.ontimestampmap({\n                    \"MPEGTS\": settings.get(\"MPEGTS\"),\n                    \"LOCAL\": settings.get(\"LOCAL\")\n                });\n            }\n\n            // 3.2 WebVTT metadata header syntax\n            function parseHeader(input) {\n                if (input.match(/X-TIMESTAMP-MAP/)) {\n                    // This line contains HLS X-TIMESTAMP-MAP metadata\n                    parseOptions(input, function (k, v) {\n                        switch (k) {\n                            case \"X-TIMESTAMP-MAP\":\n                                parseTimestampMap(v);\n                                break;\n                        }\n                    }, /=/);\n                } else {\n                    parseOptions(input, function (k, v) {\n                        switch (k) {\n                            case \"Region\":\n                                // 3.3 WebVTT region metadata header syntax\n                                parseRegion(v);\n                                break;\n                        }\n                    }, /:/);\n                }\n            }\n\n            // 5.1 WebVTT file parsing.\n            try {\n                var line;\n                if (self.state === \"INITIAL\") {\n                    // We can't start parsing until we have the first line.\n                    if (!/\\r\\n|\\n/.test(self.buffer)) {\n                        return this;\n                    }\n                    line = collectNextLine();\n                    var m = line.match(/^WEBVTT([ \\t].*)?$/);\n                    if (!m || !m[0]) {\n                        throw new ParsingError(ParsingError.Errors.BadSignature);\n                    }\n                    self.state = \"HEADER\";\n                }\n                var alreadyCollectedLine = false;\n                while (self.buffer) {\n                    // We can't parse a line until we have the full line.\n                    if (!/\\r\\n|\\n/.test(self.buffer)) {\n                        return this;\n                    }\n                    if (!alreadyCollectedLine) {\n                        line = collectNextLine();\n                    } else {\n                        alreadyCollectedLine = false;\n                    }\n                    switch (self.state) {\n                        case \"HEADER\":\n                            // 13-18 - Allow a header (metadata) under the WEBVTT line.\n                            if (/:/.test(line)) {\n                                parseHeader(line);\n                            } else if (!line) {\n                                // An empty line terminates the header and starts the body (cues).\n                                self.state = \"ID\";\n                            }\n                            continue;\n                        case \"NOTE\":\n                            // Ignore NOTE blocks.\n                            if (!line) {\n                                self.state = \"ID\";\n                            }\n                            continue;\n                        case \"ID\":\n                            // Check for the start of NOTE blocks.\n                            if (/^NOTE($|[ \\t])/.test(line)) {\n                                self.state = \"NOTE\";\n                                break;\n                            }\n                            // 19-29 - Allow any number of line terminators, then initialize new cue values.\n                            if (!line) {\n                                continue;\n                            }\n                            self.cue = new (self.vttjs.VTTCue || self.window.VTTCue)(0, 0, \"\");\n                            // Safari still uses the old middle value and won't accept center\n                            try {\n                                self.cue.align = \"center\";\n                            } catch (e) {\n                                self.cue.align = \"middle\";\n                            }\n                            self.state = \"CUE\";\n                            // 30-39 - Check if self line contains an optional identifier or timing data.\n                            if (line.indexOf(\"-->\") === -1) {\n                                self.cue.id = line;\n                                continue;\n                            }\n                        // Process line as start of a cue.\n                        /*falls through*/\n                        case \"CUE\":\n                            // 40 - Collect cue timings and settings.\n                            try {\n                                parseCue(line, self.cue, self.regionList);\n                            } catch (e) {\n                                self.reportOrThrowError(e);\n                                // In case of an error ignore rest of the cue.\n                                self.cue = null;\n                                self.state = \"BADCUE\";\n                                continue;\n                            }\n                            self.state = \"CUETEXT\";\n                            continue;\n                        case \"CUETEXT\":\n                            var hasSubstring = line.indexOf(\"-->\") !== -1;\n                            // 34 - If we have an empty line then report the cue.\n                            // 35 - If we have the special substring '-->' then report the cue,\n                            // but do not collect the line as we need to process the current\n                            // one as a new cue.\n                            if (!line || hasSubstring && (alreadyCollectedLine = true)) {\n                                // We are done parsing self cue.\n                                self.oncue && self.oncue(self.cue);\n                                self.cue = null;\n                                self.state = \"ID\";\n                                continue;\n                            }\n                            if (self.cue.text) {\n                                self.cue.text += \"\\n\";\n                            }\n                            self.cue.text += line.replace(/\\u2028/g, '\\n').replace(/u2029/g, '\\n');\n                            continue;\n                        case \"BADCUE\":\n                            // BADCUE\n                            // 54-62 - Collect and discard the remaining cue.\n                            if (!line) {\n                                self.state = \"ID\";\n                            }\n                            continue;\n                    }\n                }\n            } catch (e) {\n                self.reportOrThrowError(e);\n\n                // If we are currently parsing a cue, report what we have.\n                if (self.state === \"CUETEXT\" && self.cue && self.oncue) {\n                    self.oncue(self.cue);\n                }\n                self.cue = null;\n                // Enter BADWEBVTT state if header was not parsed correctly otherwise\n                // another exception occurred so enter BADCUE state.\n                self.state = self.state === \"INITIAL\" ? \"BADWEBVTT\" : \"BADCUE\";\n            }\n            return this;\n        },\n        flush: function () {\n            var self = this;\n            try {\n                // Finish decoding the stream.\n                self.buffer += self.decoder.decode();\n                // Synthesize the end of the current cue or region.\n                if (self.cue || self.state === \"HEADER\") {\n                    self.buffer += \"\\n\\n\";\n                    self.parse();\n                }\n                // If we've flushed, parsed, and we're still on the INITIAL state then\n                // that means we don't have enough of the stream to parse the first\n                // line.\n                if (self.state === \"INITIAL\") {\n                    throw new ParsingError(ParsingError.Errors.BadSignature);\n                }\n            } catch (e) {\n                self.reportOrThrowError(e);\n            }\n            self.onflush && self.onflush();\n            return this;\n        }\n    };\n    var vtt = WebVTT$1;\n\n    /**\n     * Copyright 2013 vtt.js Contributors\n     *\n     * Licensed under the Apache License, Version 2.0 (the \"License\");\n     * you may not use this file except in compliance with the License.\n     * You may obtain a copy of the License at\n     *\n     *   http://www.apache.org/licenses/LICENSE-2.0\n     *\n     * Unless required by applicable law or agreed to in writing, software\n     * distributed under the License is distributed on an \"AS IS\" BASIS,\n     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n     * See the License for the specific language governing permissions and\n     * limitations under the License.\n     */\n\n    var autoKeyword = \"auto\";\n    var directionSetting = {\n        \"\": 1,\n        \"lr\": 1,\n        \"rl\": 1\n    };\n    var alignSetting = {\n        \"start\": 1,\n        \"center\": 1,\n        \"end\": 1,\n        \"left\": 1,\n        \"right\": 1,\n        \"auto\": 1,\n        \"line-left\": 1,\n        \"line-right\": 1\n    };\n    function findDirectionSetting(value) {\n        if (typeof value !== \"string\") {\n            return false;\n        }\n        var dir = directionSetting[value.toLowerCase()];\n        return dir ? value.toLowerCase() : false;\n    }\n    function findAlignSetting(value) {\n        if (typeof value !== \"string\") {\n            return false;\n        }\n        var align = alignSetting[value.toLowerCase()];\n        return align ? value.toLowerCase() : false;\n    }\n    function VTTCue(startTime, endTime, text) {\n        /**\n         * Shim implementation specific properties. These properties are not in\n         * the spec.\n         */\n\n        // Lets us know when the VTTCue's data has changed in such a way that we need\n        // to recompute its display state. This lets us compute its display state\n        // lazily.\n        this.hasBeenReset = false;\n\n        /**\n         * VTTCue and TextTrackCue properties\n         * http://dev.w3.org/html5/webvtt/#vttcue-interface\n         */\n\n        var _id = \"\";\n        var _pauseOnExit = false;\n        var _startTime = startTime;\n        var _endTime = endTime;\n        var _text = text;\n        var _region = null;\n        var _vertical = \"\";\n        var _snapToLines = true;\n        var _line = \"auto\";\n        var _lineAlign = \"start\";\n        var _position = \"auto\";\n        var _positionAlign = \"auto\";\n        var _size = 100;\n        var _align = \"center\";\n        Object.defineProperties(this, {\n            \"id\": {\n                enumerable: true,\n                get: function () {\n                    return _id;\n                },\n                set: function (value) {\n                    _id = \"\" + value;\n                }\n            },\n            \"pauseOnExit\": {\n                enumerable: true,\n                get: function () {\n                    return _pauseOnExit;\n                },\n                set: function (value) {\n                    _pauseOnExit = !!value;\n                }\n            },\n            \"startTime\": {\n                enumerable: true,\n                get: function () {\n                    return _startTime;\n                },\n                set: function (value) {\n                    if (typeof value !== \"number\") {\n                        throw new TypeError(\"Start time must be set to a number.\");\n                    }\n                    _startTime = value;\n                    this.hasBeenReset = true;\n                }\n            },\n            \"endTime\": {\n                enumerable: true,\n                get: function () {\n                    return _endTime;\n                },\n                set: function (value) {\n                    if (typeof value !== \"number\") {\n                        throw new TypeError(\"End time must be set to a number.\");\n                    }\n                    _endTime = value;\n                    this.hasBeenReset = true;\n                }\n            },\n            \"text\": {\n                enumerable: true,\n                get: function () {\n                    return _text;\n                },\n                set: function (value) {\n                    _text = \"\" + value;\n                    this.hasBeenReset = true;\n                }\n            },\n            \"region\": {\n                enumerable: true,\n                get: function () {\n                    return _region;\n                },\n                set: function (value) {\n                    _region = value;\n                    this.hasBeenReset = true;\n                }\n            },\n            \"vertical\": {\n                enumerable: true,\n                get: function () {\n                    return _vertical;\n                },\n                set: function (value) {\n                    var setting = findDirectionSetting(value);\n                    // Have to check for false because the setting an be an empty string.\n                    if (setting === false) {\n                        throw new SyntaxError(\"Vertical: an invalid or illegal direction string was specified.\");\n                    }\n                    _vertical = setting;\n                    this.hasBeenReset = true;\n                }\n            },\n            \"snapToLines\": {\n                enumerable: true,\n                get: function () {\n                    return _snapToLines;\n                },\n                set: function (value) {\n                    _snapToLines = !!value;\n                    this.hasBeenReset = true;\n                }\n            },\n            \"line\": {\n                enumerable: true,\n                get: function () {\n                    return _line;\n                },\n                set: function (value) {\n                    if (typeof value !== \"number\" && value !== autoKeyword) {\n                        throw new SyntaxError(\"Line: an invalid number or illegal string was specified.\");\n                    }\n                    _line = value;\n                    this.hasBeenReset = true;\n                }\n            },\n            \"lineAlign\": {\n                enumerable: true,\n                get: function () {\n                    return _lineAlign;\n                },\n                set: function (value) {\n                    var setting = findAlignSetting(value);\n                    if (!setting) {\n                        console.warn(\"lineAlign: an invalid or illegal string was specified.\");\n                    } else {\n                        _lineAlign = setting;\n                        this.hasBeenReset = true;\n                    }\n                }\n            },\n            \"position\": {\n                enumerable: true,\n                get: function () {\n                    return _position;\n                },\n                set: function (value) {\n                    if (value < 0 || value > 100) {\n                        throw new Error(\"Position must be between 0 and 100.\");\n                    }\n                    _position = value;\n                    this.hasBeenReset = true;\n                }\n            },\n            \"positionAlign\": {\n                enumerable: true,\n                get: function () {\n                    return _positionAlign;\n                },\n                set: function (value) {\n                    var setting = findAlignSetting(value);\n                    if (!setting) {\n                        console.warn(\"positionAlign: an invalid or illegal string was specified.\");\n                    } else {\n                        _positionAlign = setting;\n                        this.hasBeenReset = true;\n                    }\n                }\n            },\n            \"size\": {\n                enumerable: true,\n                get: function () {\n                    return _size;\n                },\n                set: function (value) {\n                    if (value < 0 || value > 100) {\n                        throw new Error(\"Size must be between 0 and 100.\");\n                    }\n                    _size = value;\n                    this.hasBeenReset = true;\n                }\n            },\n            \"align\": {\n                enumerable: true,\n                get: function () {\n                    return _align;\n                },\n                set: function (value) {\n                    var setting = findAlignSetting(value);\n                    if (!setting) {\n                        throw new SyntaxError(\"align: an invalid or illegal alignment string was specified.\");\n                    }\n                    _align = setting;\n                    this.hasBeenReset = true;\n                }\n            }\n        });\n\n        /**\n         * Other <track> spec defined properties\n         */\n\n        // http://www.whatwg.org/specs/web-apps/current-work/multipage/the-video-element.html#text-track-cue-display-state\n        this.displayState = undefined;\n    }\n\n    /**\n     * VTTCue methods\n     */\n\n    VTTCue.prototype.getCueAsHTML = function () {\n        // Assume WebVTT.convertCueToDOMTree is on the global.\n        return WebVTT.convertCueToDOMTree(window, this.text);\n    };\n    var vttcue = VTTCue;\n\n    /**\n     * Copyright 2013 vtt.js Contributors\n     *\n     * Licensed under the Apache License, Version 2.0 (the \"License\");\n     * you may not use this file except in compliance with the License.\n     * You may obtain a copy of the License at\n     *\n     *   http://www.apache.org/licenses/LICENSE-2.0\n     *\n     * Unless required by applicable law or agreed to in writing, software\n     * distributed under the License is distributed on an \"AS IS\" BASIS,\n     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n     * See the License for the specific language governing permissions and\n     * limitations under the License.\n     */\n\n    var scrollSetting = {\n        \"\": true,\n        \"up\": true\n    };\n    function findScrollSetting(value) {\n        if (typeof value !== \"string\") {\n            return false;\n        }\n        var scroll = scrollSetting[value.toLowerCase()];\n        return scroll ? value.toLowerCase() : false;\n    }\n    function isValidPercentValue(value) {\n        return typeof value === \"number\" && value >= 0 && value <= 100;\n    }\n\n    // VTTRegion shim http://dev.w3.org/html5/webvtt/#vttregion-interface\n    function VTTRegion() {\n        var _width = 100;\n        var _lines = 3;\n        var _regionAnchorX = 0;\n        var _regionAnchorY = 100;\n        var _viewportAnchorX = 0;\n        var _viewportAnchorY = 100;\n        var _scroll = \"\";\n        Object.defineProperties(this, {\n            \"width\": {\n                enumerable: true,\n                get: function () {\n                    return _width;\n                },\n                set: function (value) {\n                    if (!isValidPercentValue(value)) {\n                        throw new Error(\"Width must be between 0 and 100.\");\n                    }\n                    _width = value;\n                }\n            },\n            \"lines\": {\n                enumerable: true,\n                get: function () {\n                    return _lines;\n                },\n                set: function (value) {\n                    if (typeof value !== \"number\") {\n                        throw new TypeError(\"Lines must be set to a number.\");\n                    }\n                    _lines = value;\n                }\n            },\n            \"regionAnchorY\": {\n                enumerable: true,\n                get: function () {\n                    return _regionAnchorY;\n                },\n                set: function (value) {\n                    if (!isValidPercentValue(value)) {\n                        throw new Error(\"RegionAnchorX must be between 0 and 100.\");\n                    }\n                    _regionAnchorY = value;\n                }\n            },\n            \"regionAnchorX\": {\n                enumerable: true,\n                get: function () {\n                    return _regionAnchorX;\n                },\n                set: function (value) {\n                    if (!isValidPercentValue(value)) {\n                        throw new Error(\"RegionAnchorY must be between 0 and 100.\");\n                    }\n                    _regionAnchorX = value;\n                }\n            },\n            \"viewportAnchorY\": {\n                enumerable: true,\n                get: function () {\n                    return _viewportAnchorY;\n                },\n                set: function (value) {\n                    if (!isValidPercentValue(value)) {\n                        throw new Error(\"ViewportAnchorY must be between 0 and 100.\");\n                    }\n                    _viewportAnchorY = value;\n                }\n            },\n            \"viewportAnchorX\": {\n                enumerable: true,\n                get: function () {\n                    return _viewportAnchorX;\n                },\n                set: function (value) {\n                    if (!isValidPercentValue(value)) {\n                        throw new Error(\"ViewportAnchorX must be between 0 and 100.\");\n                    }\n                    _viewportAnchorX = value;\n                }\n            },\n            \"scroll\": {\n                enumerable: true,\n                get: function () {\n                    return _scroll;\n                },\n                set: function (value) {\n                    var setting = findScrollSetting(value);\n                    // Have to check for false as an empty string is a legal value.\n                    if (setting === false) {\n                        console.warn(\"Scroll: an invalid or illegal string was specified.\");\n                    } else {\n                        _scroll = setting;\n                    }\n                }\n            }\n        });\n    }\n    var vttregion = VTTRegion;\n\n    var browserIndex = createCommonjsModule(function (module) {\n        /**\n         * Copyright 2013 vtt.js Contributors\n         *\n         * Licensed under the Apache License, Version 2.0 (the \"License\");\n         * you may not use this file except in compliance with the License.\n         * You may obtain a copy of the License at\n         *\n         *   http://www.apache.org/licenses/LICENSE-2.0\n         *\n         * Unless required by applicable law or agreed to in writing, software\n         * distributed under the License is distributed on an \"AS IS\" BASIS,\n         * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n         * See the License for the specific language governing permissions and\n         * limitations under the License.\n         */\n\n            // Default exports for Node. Export the extended versions of VTTCue and\n            // VTTRegion in Node since we likely want the capability to convert back and\n            // forth between JSON. If we don't then it's not that big of a deal since we're\n            // off browser.\n\n        var vttjs = module.exports = {\n                WebVTT: vtt,\n                VTTCue: vttcue,\n                VTTRegion: vttregion\n            };\n        window_1.vttjs = vttjs;\n        window_1.WebVTT = vttjs.WebVTT;\n        var cueShim = vttjs.VTTCue;\n        var regionShim = vttjs.VTTRegion;\n        var nativeVTTCue = window_1.VTTCue;\n        var nativeVTTRegion = window_1.VTTRegion;\n        vttjs.shim = function () {\n            window_1.VTTCue = cueShim;\n            window_1.VTTRegion = regionShim;\n        };\n        vttjs.restore = function () {\n            window_1.VTTCue = nativeVTTCue;\n            window_1.VTTRegion = nativeVTTRegion;\n        };\n        if (!window_1.VTTCue) {\n            vttjs.shim();\n        }\n    });\n    browserIndex.WebVTT;\n    browserIndex.VTTCue;\n    browserIndex.VTTRegion;\n\n    /**\n     * @file tech.js\n     */\n\n    /**\n     * An Object containing a structure like: `{src: 'url', type: 'mimetype'}` or string\n     * that just contains the src url alone.\n     * * `var SourceObject = {src: 'http://ex.com/video.mp4', type: 'video/mp4'};`\n     * `var SourceString = 'http://example.com/some-video.mp4';`\n     *\n     * @typedef {Object|string} Tech~SourceObject\n     *\n     * @property {string} src\n     *           The url to the source\n     *\n     * @property {string} type\n     *           The mime type of the source\n     */\n\n    /**\n     * A function used by {@link Tech} to create a new {@link TextTrack}.\n     *\n     * @private\n     *\n     * @param {Tech} self\n     *        An instance of the Tech class.\n     *\n     * @param {string} kind\n     *        `TextTrack` kind (subtitles, captions, descriptions, chapters, or metadata)\n     *\n     * @param {string} [label]\n     *        Label to identify the text track\n     *\n     * @param {string} [language]\n     *        Two letter language abbreviation\n     *\n     * @param {Object} [options={}]\n     *        An object with additional text track options\n     *\n     * @return {TextTrack}\n     *          The text track that was created.\n     */\n    function createTrackHelper(self, kind, label, language, options = {}) {\n        const tracks = self.textTracks();\n        options.kind = kind;\n        if (label) {\n            options.label = label;\n        }\n        if (language) {\n            options.language = language;\n        }\n        options.tech = self;\n        const track = new ALL.text.TrackClass(options);\n        tracks.addTrack(track);\n        return track;\n    }\n\n    /**\n     * This is the base class for media playback technology controllers, such as\n     * {@link HTML5}\n     *\n     * @extends Component\n     */\n    class Tech extends Component$1 {\n        /**\n         * Create an instance of this Tech.\n         *\n         * @param {Object} [options]\n         *        The key/value store of player options.\n         *\n         * @param {Function} [ready]\n         *        Callback function to call when the `HTML5` Tech is ready.\n         */\n        constructor(options = {}, ready = function () {}) {\n            // we don't want the tech to report user activity automatically.\n            // This is done manually in addControlsListeners\n            options.reportTouchActivity = false;\n            super(null, options, ready);\n            this.onDurationChange_ = e => this.onDurationChange(e);\n            this.trackProgress_ = e => this.trackProgress(e);\n            this.trackCurrentTime_ = e => this.trackCurrentTime(e);\n            this.stopTrackingCurrentTime_ = e => this.stopTrackingCurrentTime(e);\n            this.disposeSourceHandler_ = e => this.disposeSourceHandler(e);\n            this.queuedHanders_ = new Set();\n\n            // keep track of whether the current source has played at all to\n            // implement a very limited played()\n            this.hasStarted_ = false;\n            this.on('playing', function () {\n                this.hasStarted_ = true;\n            });\n            this.on('loadstart', function () {\n                this.hasStarted_ = false;\n            });\n            ALL.names.forEach(name => {\n                const props = ALL[name];\n                if (options && options[props.getterName]) {\n                    this[props.privateName] = options[props.getterName];\n                }\n            });\n\n            // Manually track progress in cases where the browser/tech doesn't report it.\n            if (!this.featuresProgressEvents) {\n                this.manualProgressOn();\n            }\n\n            // Manually track timeupdates in cases where the browser/tech doesn't report it.\n            if (!this.featuresTimeupdateEvents) {\n                this.manualTimeUpdatesOn();\n            }\n            ['Text', 'Audio', 'Video'].forEach(track => {\n                if (options[`native${track}Tracks`] === false) {\n                    this[`featuresNative${track}Tracks`] = false;\n                }\n            });\n            if (options.nativeCaptions === false || options.nativeTextTracks === false) {\n                this.featuresNativeTextTracks = false;\n            } else if (options.nativeCaptions === true || options.nativeTextTracks === true) {\n                this.featuresNativeTextTracks = true;\n            }\n            if (!this.featuresNativeTextTracks) {\n                this.emulateTextTracks();\n            }\n            this.preloadTextTracks = options.preloadTextTracks !== false;\n            this.autoRemoteTextTracks_ = new ALL.text.ListClass();\n            this.initTrackListeners();\n\n            // Turn on component tap events only if not using native controls\n            if (!options.nativeControlsForTouch) {\n                this.emitTapEvents();\n            }\n            if (this.constructor) {\n                this.name_ = this.constructor.name || 'Unknown Tech';\n            }\n        }\n\n        /**\n         * A special function to trigger source set in a way that will allow player\n         * to re-trigger if the player or tech are not ready yet.\n         *\n         * @fires Tech#sourceset\n         * @param {string} src The source string at the time of the source changing.\n         */\n        triggerSourceset(src) {\n            if (!this.isReady_) {\n                // on initial ready we have to trigger source set\n                // 1ms after ready so that player can watch for it.\n                this.one('ready', () => this.setTimeout(() => this.triggerSourceset(src), 1));\n            }\n\n            /**\n             * Fired when the source is set on the tech causing the media element\n             * to reload.\n             *\n             * @see {@link Player#event:sourceset}\n             * @event Tech#sourceset\n             * @type {Event}\n             */\n            this.trigger({\n                src,\n                type: 'sourceset'\n            });\n        }\n\n        /* Fallbacks for unsupported event types\n    ================================================================================ */\n\n        /**\n         * Polyfill the `progress` event for browsers that don't support it natively.\n         *\n         * @see {@link Tech#trackProgress}\n         */\n        manualProgressOn() {\n            this.on('durationchange', this.onDurationChange_);\n            this.manualProgress = true;\n\n            // Trigger progress watching when a source begins loading\n            this.one('ready', this.trackProgress_);\n        }\n\n        /**\n         * Turn off the polyfill for `progress` events that was created in\n         * {@link Tech#manualProgressOn}\n         */\n        manualProgressOff() {\n            this.manualProgress = false;\n            this.stopTrackingProgress();\n            this.off('durationchange', this.onDurationChange_);\n        }\n\n        /**\n         * This is used to trigger a `progress` event when the buffered percent changes. It\n         * sets an interval function that will be called every 500 milliseconds to check if the\n         * buffer end percent has changed.\n         *\n         * > This function is called by {@link Tech#manualProgressOn}\n         *\n         * @param {Event} event\n         *        The `ready` event that caused this to run.\n         *\n         * @listens Tech#ready\n         * @fires Tech#progress\n         */\n        trackProgress(event) {\n            this.stopTrackingProgress();\n            this.progressInterval = this.setInterval(bind_(this, function () {\n                // Don't trigger unless buffered amount is greater than last time\n\n                const numBufferedPercent = this.bufferedPercent();\n                if (this.bufferedPercent_ !== numBufferedPercent) {\n                    /**\n                     * See {@link Player#progress}\n                     *\n                     * @event Tech#progress\n                     * @type {Event}\n                     */\n                    this.trigger('progress');\n                }\n                this.bufferedPercent_ = numBufferedPercent;\n                if (numBufferedPercent === 1) {\n                    this.stopTrackingProgress();\n                }\n            }), 500);\n        }\n\n        /**\n         * Update our internal duration on a `durationchange` event by calling\n         * {@link Tech#duration}.\n         *\n         * @param {Event} event\n         *        The `durationchange` event that caused this to run.\n         *\n         * @listens Tech#durationchange\n         */\n        onDurationChange(event) {\n            this.duration_ = this.duration();\n        }\n\n        /**\n         * Get and create a `TimeRange` object for buffering.\n         *\n         * @return { import('../utils/time').TimeRange }\n         *         The time range object that was created.\n         */\n        buffered() {\n            return createTimeRanges$1(0, 0);\n        }\n\n        /**\n         * Get the percentage of the current video that is currently buffered.\n         *\n         * @return {number}\n         *         A number from 0 to 1 that represents the decimal percentage of the\n         *         video that is buffered.\n         *\n         */\n        bufferedPercent() {\n            return bufferedPercent(this.buffered(), this.duration_);\n        }\n\n        /**\n         * Turn off the polyfill for `progress` events that was created in\n         * {@link Tech#manualProgressOn}\n         * Stop manually tracking progress events by clearing the interval that was set in\n         * {@link Tech#trackProgress}.\n         */\n        stopTrackingProgress() {\n            this.clearInterval(this.progressInterval);\n        }\n\n        /**\n         * Polyfill the `timeupdate` event for browsers that don't support it.\n         *\n         * @see {@link Tech#trackCurrentTime}\n         */\n        manualTimeUpdatesOn() {\n            this.manualTimeUpdates = true;\n            this.on('play', this.trackCurrentTime_);\n            this.on('pause', this.stopTrackingCurrentTime_);\n        }\n\n        /**\n         * Turn off the polyfill for `timeupdate` events that was created in\n         * {@link Tech#manualTimeUpdatesOn}\n         */\n        manualTimeUpdatesOff() {\n            this.manualTimeUpdates = false;\n            this.stopTrackingCurrentTime();\n            this.off('play', this.trackCurrentTime_);\n            this.off('pause', this.stopTrackingCurrentTime_);\n        }\n\n        /**\n         * Sets up an interval function to track current time and trigger `timeupdate` every\n         * 250 milliseconds.\n         *\n         * @listens Tech#play\n         * @triggers Tech#timeupdate\n         */\n        trackCurrentTime() {\n            if (this.currentTimeInterval) {\n                this.stopTrackingCurrentTime();\n            }\n            this.currentTimeInterval = this.setInterval(function () {\n                /**\n                 * Triggered at an interval of 250ms to indicated that time is passing in the video.\n                 *\n                 * @event Tech#timeupdate\n                 * @type {Event}\n                 */\n                this.trigger({\n                    type: 'timeupdate',\n                    target: this,\n                    manuallyTriggered: true\n                });\n\n                // 42 = 24 fps // 250 is what Webkit uses // FF uses 15\n            }, 250);\n        }\n\n        /**\n         * Stop the interval function created in {@link Tech#trackCurrentTime} so that the\n         * `timeupdate` event is no longer triggered.\n         *\n         * @listens {Tech#pause}\n         */\n        stopTrackingCurrentTime() {\n            this.clearInterval(this.currentTimeInterval);\n\n            // #1002 - if the video ends right before the next timeupdate would happen,\n            // the progress bar won't make it all the way to the end\n            this.trigger({\n                type: 'timeupdate',\n                target: this,\n                manuallyTriggered: true\n            });\n        }\n\n        /**\n         * Turn off all event polyfills, clear the `Tech`s {@link AudioTrackList},\n         * {@link VideoTrackList}, and {@link TextTrackList}, and dispose of this Tech.\n         *\n         * @fires Component#dispose\n         */\n        dispose() {\n            // clear out all tracks because we can't reuse them between techs\n            this.clearTracks(NORMAL.names);\n\n            // Turn off any manual progress or timeupdate tracking\n            if (this.manualProgress) {\n                this.manualProgressOff();\n            }\n            if (this.manualTimeUpdates) {\n                this.manualTimeUpdatesOff();\n            }\n            super.dispose();\n        }\n\n        /**\n         * Clear out a single `TrackList` or an array of `TrackLists` given their names.\n         *\n         * > Note: Techs without source handlers should call this between sources for `video`\n         *         & `audio` tracks. You don't want to use them between tracks!\n         *\n         * @param {string[]|string} types\n         *        TrackList names to clear, valid names are `video`, `audio`, and\n         *        `text`.\n         */\n        clearTracks(types) {\n            types = [].concat(types);\n            // clear out all tracks because we can't reuse them between techs\n            types.forEach(type => {\n                const list = this[`${type}Tracks`]() || [];\n                let i = list.length;\n                while (i--) {\n                    const track = list[i];\n                    if (type === 'text') {\n                        this.removeRemoteTextTrack(track);\n                    }\n                    list.removeTrack(track);\n                }\n            });\n        }\n\n        /**\n         * Remove any TextTracks added via addRemoteTextTrack that are\n         * flagged for automatic garbage collection\n         */\n        cleanupAutoTextTracks() {\n            const list = this.autoRemoteTextTracks_ || [];\n            let i = list.length;\n            while (i--) {\n                const track = list[i];\n                this.removeRemoteTextTrack(track);\n            }\n        }\n\n        /**\n         * Reset the tech, which will removes all sources and reset the internal readyState.\n         *\n         * @abstract\n         */\n        reset() {}\n\n        /**\n         * Get the value of `crossOrigin` from the tech.\n         *\n         * @abstract\n         *\n         * @see {Html5#crossOrigin}\n         */\n        crossOrigin() {}\n\n        /**\n         * Set the value of `crossOrigin` on the tech.\n         *\n         * @abstract\n         *\n         * @param {string} crossOrigin the crossOrigin value\n         * @see {Html5#setCrossOrigin}\n         */\n        setCrossOrigin() {}\n\n        /**\n         * Get or set an error on the Tech.\n         *\n         * @param {MediaError} [err]\n         *        Error to set on the Tech\n         *\n         * @return {MediaError|null}\n         *         The current error object on the tech, or null if there isn't one.\n         */\n        error(err) {\n            if (err !== undefined) {\n                this.error_ = new MediaError(err);\n                this.trigger('error');\n            }\n            return this.error_;\n        }\n\n        /**\n         * Returns the `TimeRange`s that have been played through for the current source.\n         *\n         * > NOTE: This implementation is incomplete. It does not track the played `TimeRange`.\n         *         It only checks whether the source has played at all or not.\n         *\n         * @return {TimeRange}\n         *         - A single time range if this video has played\n         *         - An empty set of ranges if not.\n         */\n        played() {\n            if (this.hasStarted_) {\n                return createTimeRanges$1(0, 0);\n            }\n            return createTimeRanges$1();\n        }\n\n        /**\n         * Start playback\n         *\n         * @abstract\n         *\n         * @see {Html5#play}\n         */\n        play() {}\n\n        /**\n         * Set whether we are scrubbing or not\n         *\n         * @abstract\n         * @param {boolean} _isScrubbing\n         *                  - true for we are currently scrubbing\n         *                  - false for we are no longer scrubbing\n         *\n         * @see {Html5#setScrubbing}\n         */\n        setScrubbing(_isScrubbing) {}\n\n        /**\n         * Get whether we are scrubbing or not\n         *\n         * @abstract\n         *\n         * @see {Html5#scrubbing}\n         */\n        scrubbing() {}\n\n        /**\n         * Causes a manual time update to occur if {@link Tech#manualTimeUpdatesOn} was\n         * previously called.\n         *\n         * @param {number} _seconds\n         *        Set the current time of the media to this.\n         * @fires Tech#timeupdate\n         */\n        setCurrentTime(_seconds) {\n            // improve the accuracy of manual timeupdates\n            if (this.manualTimeUpdates) {\n                /**\n                 * A manual `timeupdate` event.\n                 *\n                 * @event Tech#timeupdate\n                 * @type {Event}\n                 */\n                this.trigger({\n                    type: 'timeupdate',\n                    target: this,\n                    manuallyTriggered: true\n                });\n            }\n        }\n\n        /**\n         * Turn on listeners for {@link VideoTrackList}, {@link {AudioTrackList}, and\n         * {@link TextTrackList} events.\n         *\n         * This adds {@link EventTarget~EventListeners} for `addtrack`, and  `removetrack`.\n         *\n         * @fires Tech#audiotrackchange\n         * @fires Tech#videotrackchange\n         * @fires Tech#texttrackchange\n         */\n        initTrackListeners() {\n            /**\n             * Triggered when tracks are added or removed on the Tech {@link AudioTrackList}\n             *\n             * @event Tech#audiotrackchange\n             * @type {Event}\n             */\n\n            /**\n             * Triggered when tracks are added or removed on the Tech {@link VideoTrackList}\n             *\n             * @event Tech#videotrackchange\n             * @type {Event}\n             */\n\n            /**\n             * Triggered when tracks are added or removed on the Tech {@link TextTrackList}\n             *\n             * @event Tech#texttrackchange\n             * @type {Event}\n             */\n            NORMAL.names.forEach(name => {\n                const props = NORMAL[name];\n                const trackListChanges = () => {\n                    this.trigger(`${name}trackchange`);\n                };\n                const tracks = this[props.getterName]();\n                tracks.addEventListener('removetrack', trackListChanges);\n                tracks.addEventListener('addtrack', trackListChanges);\n                this.on('dispose', () => {\n                    tracks.removeEventListener('removetrack', trackListChanges);\n                    tracks.removeEventListener('addtrack', trackListChanges);\n                });\n            });\n        }\n\n        /**\n         * Emulate TextTracks using vtt.js if necessary\n         *\n         * @fires Tech#vttjsloaded\n         * @fires Tech#vttjserror\n         */\n        addWebVttScript_() {\n            if (window.WebVTT) {\n                return;\n            }\n\n            // Initially, Tech.el_ is a child of a dummy-div wait until the Component system\n            // signals that the Tech is ready at which point Tech.el_ is part of the DOM\n            // before inserting the WebVTT script\n            if (document.body.contains(this.el())) {\n                // load via require if available and vtt.js script location was not passed in\n                // as an option. novtt builds will turn the above require call into an empty object\n                // which will cause this if check to always fail.\n                if (!this.options_['vtt.js'] && isPlain(browserIndex) && Object.keys(browserIndex).length > 0) {\n                    this.trigger('vttjsloaded');\n                    return;\n                }\n\n                // load vtt.js via the script location option or the cdn of no location was\n                // passed in\n                const script = document.createElement('script');\n                script.src = this.options_['vtt.js'] || 'https://vjs.zencdn.net/vttjs/0.14.1/vtt.min.js';\n                script.onload = () => {\n                    /**\n                     * Fired when vtt.js is loaded.\n                     *\n                     * @event Tech#vttjsloaded\n                     * @type {Event}\n                     */\n                    this.trigger('vttjsloaded');\n                };\n                script.onerror = () => {\n                    /**\n                     * Fired when vtt.js was not loaded due to an error\n                     *\n                     * @event Tech#vttjsloaded\n                     * @type {Event}\n                     */\n                    this.trigger('vttjserror');\n                };\n                this.on('dispose', () => {\n                    script.onload = null;\n                    script.onerror = null;\n                });\n                // but have not loaded yet and we set it to true before the inject so that\n                // we don't overwrite the injected window.WebVTT if it loads right away\n                window.WebVTT = true;\n                this.el().parentNode.appendChild(script);\n            } else {\n                this.ready(this.addWebVttScript_);\n            }\n        }\n\n        /**\n         * Emulate texttracks\n         *\n         */\n        emulateTextTracks() {\n            const tracks = this.textTracks();\n            const remoteTracks = this.remoteTextTracks();\n            const handleAddTrack = e => tracks.addTrack(e.track);\n            const handleRemoveTrack = e => tracks.removeTrack(e.track);\n            remoteTracks.on('addtrack', handleAddTrack);\n            remoteTracks.on('removetrack', handleRemoveTrack);\n            this.addWebVttScript_();\n            const updateDisplay = () => this.trigger('texttrackchange');\n            const textTracksChanges = () => {\n                updateDisplay();\n                for (let i = 0; i < tracks.length; i++) {\n                    const track = tracks[i];\n                    track.removeEventListener('cuechange', updateDisplay);\n                    if (track.mode === 'showing') {\n                        track.addEventListener('cuechange', updateDisplay);\n                    }\n                }\n            };\n            textTracksChanges();\n            tracks.addEventListener('change', textTracksChanges);\n            tracks.addEventListener('addtrack', textTracksChanges);\n            tracks.addEventListener('removetrack', textTracksChanges);\n            this.on('dispose', function () {\n                remoteTracks.off('addtrack', handleAddTrack);\n                remoteTracks.off('removetrack', handleRemoveTrack);\n                tracks.removeEventListener('change', textTracksChanges);\n                tracks.removeEventListener('addtrack', textTracksChanges);\n                tracks.removeEventListener('removetrack', textTracksChanges);\n                for (let i = 0; i < tracks.length; i++) {\n                    const track = tracks[i];\n                    track.removeEventListener('cuechange', updateDisplay);\n                }\n            });\n        }\n\n        /**\n         * Create and returns a remote {@link TextTrack} object.\n         *\n         * @param {string} kind\n         *        `TextTrack` kind (subtitles, captions, descriptions, chapters, or metadata)\n         *\n         * @param {string} [label]\n         *        Label to identify the text track\n         *\n         * @param {string} [language]\n         *        Two letter language abbreviation\n         *\n         * @return {TextTrack}\n         *         The TextTrack that gets created.\n         */\n        addTextTrack(kind, label, language) {\n            if (!kind) {\n                throw new Error('TextTrack kind is required but was not provided');\n            }\n            return createTrackHelper(this, kind, label, language);\n        }\n\n        /**\n         * Create an emulated TextTrack for use by addRemoteTextTrack\n         *\n         * This is intended to be overridden by classes that inherit from\n         * Tech in order to create native or custom TextTracks.\n         *\n         * @param {Object} options\n         *        The object should contain the options to initialize the TextTrack with.\n         *\n         * @param {string} [options.kind]\n         *        `TextTrack` kind (subtitles, captions, descriptions, chapters, or metadata).\n         *\n         * @param {string} [options.label].\n         *        Label to identify the text track\n         *\n         * @param {string} [options.language]\n         *        Two letter language abbreviation.\n         *\n         * @return {HTMLTrackElement}\n         *         The track element that gets created.\n         */\n        createRemoteTextTrack(options) {\n            const track = merge$2(options, {\n                tech: this\n            });\n            return new REMOTE.remoteTextEl.TrackClass(track);\n        }\n\n        /**\n         * Creates a remote text track object and returns an html track element.\n         *\n         * > Note: This can be an emulated {@link HTMLTrackElement} or a native one.\n         *\n         * @param {Object} options\n         *        See {@link Tech#createRemoteTextTrack} for more detailed properties.\n         *\n         * @param {boolean} [manualCleanup=false]\n         *        - When false: the TextTrack will be automatically removed from the video\n         *          element whenever the source changes\n         *        - When True: The TextTrack will have to be cleaned up manually\n         *\n         * @return {HTMLTrackElement}\n         *         An Html Track Element.\n         *\n         */\n        addRemoteTextTrack(options = {}, manualCleanup) {\n            const htmlTrackElement = this.createRemoteTextTrack(options);\n            if (typeof manualCleanup !== 'boolean') {\n                manualCleanup = false;\n            }\n\n            // store HTMLTrackElement and TextTrack to remote list\n            this.remoteTextTrackEls().addTrackElement_(htmlTrackElement);\n            this.remoteTextTracks().addTrack(htmlTrackElement.track);\n            if (manualCleanup === false) {\n                // create the TextTrackList if it doesn't exist\n                this.ready(() => this.autoRemoteTextTracks_.addTrack(htmlTrackElement.track));\n            }\n            return htmlTrackElement;\n        }\n\n        /**\n         * Remove a remote text track from the remote `TextTrackList`.\n         *\n         * @param {TextTrack} track\n         *        `TextTrack` to remove from the `TextTrackList`\n         */\n        removeRemoteTextTrack(track) {\n            const trackElement = this.remoteTextTrackEls().getTrackElementByTrack_(track);\n\n            // remove HTMLTrackElement and TextTrack from remote list\n            this.remoteTextTrackEls().removeTrackElement_(trackElement);\n            this.remoteTextTracks().removeTrack(track);\n            this.autoRemoteTextTracks_.removeTrack(track);\n        }\n\n        /**\n         * Gets available media playback quality metrics as specified by the W3C's Media\n         * Playback Quality API.\n         *\n         * @see [Spec]{@link https://wicg.github.io/media-playback-quality}\n         *\n         * @return {Object}\n         *         An object with supported media playback quality metrics\n         *\n         * @abstract\n         */\n        getVideoPlaybackQuality() {\n            return {};\n        }\n\n        /**\n         * Attempt to create a floating video window always on top of other windows\n         * so that users may continue consuming media while they interact with other\n         * content sites, or applications on their device.\n         *\n         * @see [Spec]{@link https://wicg.github.io/picture-in-picture}\n         *\n         * @return {Promise|undefined}\n         *         A promise with a Picture-in-Picture window if the browser supports\n         *         Promises (or one was passed in as an option). It returns undefined\n         *         otherwise.\n         *\n         * @abstract\n         */\n        requestPictureInPicture() {\n            return Promise.reject();\n        }\n\n        /**\n         * A method to check for the value of the 'disablePictureInPicture' <video> property.\n         * Defaults to true, as it should be considered disabled if the tech does not support pip\n         *\n         * @abstract\n         */\n        disablePictureInPicture() {\n            return true;\n        }\n\n        /**\n         * A method to set or unset the 'disablePictureInPicture' <video> property.\n         *\n         * @abstract\n         */\n        setDisablePictureInPicture() {}\n\n        /**\n         * A fallback implementation of requestVideoFrameCallback using requestAnimationFrame\n         *\n         * @param {function} cb\n         * @return {number} request id\n         */\n        requestVideoFrameCallback(cb) {\n            const id = newGUID();\n            if (!this.isReady_ || this.paused()) {\n                this.queuedHanders_.add(id);\n                this.one('playing', () => {\n                    if (this.queuedHanders_.has(id)) {\n                        this.queuedHanders_.delete(id);\n                        cb();\n                    }\n                });\n            } else {\n                this.requestNamedAnimationFrame(id, cb);\n            }\n            return id;\n        }\n\n        /**\n         * A fallback implementation of cancelVideoFrameCallback\n         *\n         * @param {number} id id of callback to be cancelled\n         */\n        cancelVideoFrameCallback(id) {\n            if (this.queuedHanders_.has(id)) {\n                this.queuedHanders_.delete(id);\n            } else {\n                this.cancelNamedAnimationFrame(id);\n            }\n        }\n\n        /**\n         * A method to set a poster from a `Tech`.\n         *\n         * @abstract\n         */\n        setPoster() {}\n\n        /**\n         * A method to check for the presence of the 'playsinline' <video> attribute.\n         *\n         * @abstract\n         */\n        playsinline() {}\n\n        /**\n         * A method to set or unset the 'playsinline' <video> attribute.\n         *\n         * @abstract\n         */\n        setPlaysinline() {}\n\n        /**\n         * Attempt to force override of native audio tracks.\n         *\n         * @param {boolean} override - If set to true native audio will be overridden,\n         * otherwise native audio will potentially be used.\n         *\n         * @abstract\n         */\n        overrideNativeAudioTracks(override) {}\n\n        /**\n         * Attempt to force override of native video tracks.\n         *\n         * @param {boolean} override - If set to true native video will be overridden,\n         * otherwise native video will potentially be used.\n         *\n         * @abstract\n         */\n        overrideNativeVideoTracks(override) {}\n\n        /**\n         * Check if the tech can support the given mime-type.\n         *\n         * The base tech does not support any type, but source handlers might\n         * overwrite this.\n         *\n         * @param  {string} _type\n         *         The mimetype to check for support\n         *\n         * @return {string}\n         *         'probably', 'maybe', or empty string\n         *\n         * @see [Spec]{@link https://developer.mozilla.org/en-US/docs/Web/API/HTMLMediaElement/canPlayType}\n         *\n         * @abstract\n         */\n        canPlayType(_type) {\n            return '';\n        }\n\n        /**\n         * Check if the type is supported by this tech.\n         *\n         * The base tech does not support any type, but source handlers might\n         * overwrite this.\n         *\n         * @param {string} _type\n         *        The media type to check\n         * @return {string} Returns the native video element's response\n         */\n        static canPlayType(_type) {\n            return '';\n        }\n\n        /**\n         * Check if the tech can support the given source\n         *\n         * @param {Object} srcObj\n         *        The source object\n         * @param {Object} options\n         *        The options passed to the tech\n         * @return {string} 'probably', 'maybe', or '' (empty string)\n         */\n        static canPlaySource(srcObj, options) {\n            return Tech.canPlayType(srcObj.type);\n        }\n\n        /*\n     * Return whether the argument is a Tech or not.\n     * Can be passed either a Class like `Html5` or a instance like `player.tech_`\n     *\n     * @param {Object} component\n     *        The item to check\n     *\n     * @return {boolean}\n     *         Whether it is a tech or not\n     *         - True if it is a tech\n     *         - False if it is not\n     */\n        static isTech(component) {\n            return component.prototype instanceof Tech || component instanceof Tech || component === Tech;\n        }\n\n        /**\n         * Registers a `Tech` into a shared list for videojs.\n         *\n         * @param {string} name\n         *        Name of the `Tech` to register.\n         *\n         * @param {Object} tech\n         *        The `Tech` class to register.\n         */\n        static registerTech(name, tech) {\n            if (!Tech.techs_) {\n                Tech.techs_ = {};\n            }\n            if (!Tech.isTech(tech)) {\n                throw new Error(`Tech ${name} must be a Tech`);\n            }\n            if (!Tech.canPlayType) {\n                throw new Error('Techs must have a static canPlayType method on them');\n            }\n            if (!Tech.canPlaySource) {\n                throw new Error('Techs must have a static canPlaySource method on them');\n            }\n            name = toTitleCase$1(name);\n            Tech.techs_[name] = tech;\n            Tech.techs_[toLowerCase(name)] = tech;\n            if (name !== 'Tech') {\n                // camel case the techName for use in techOrder\n                Tech.defaultTechOrder_.push(name);\n            }\n            return tech;\n        }\n\n        /**\n         * Get a `Tech` from the shared list by name.\n         *\n         * @param {string} name\n         *        `camelCase` or `TitleCase` name of the Tech to get\n         *\n         * @return {Tech|undefined}\n         *         The `Tech` or undefined if there was no tech with the name requested.\n         */\n        static getTech(name) {\n            if (!name) {\n                return;\n            }\n            if (Tech.techs_ && Tech.techs_[name]) {\n                return Tech.techs_[name];\n            }\n            name = toTitleCase$1(name);\n            if (window && window.videojs && window.videojs[name]) {\n                log$1.warn(`The ${name} tech was added to the videojs object when it should be registered using videojs.registerTech(name, tech)`);\n                return window.videojs[name];\n            }\n        }\n    }\n\n    /**\n     * Get the {@link VideoTrackList}\n     *\n     * @returns {VideoTrackList}\n     * @method Tech.prototype.videoTracks\n     */\n\n    /**\n     * Get the {@link AudioTrackList}\n     *\n     * @returns {AudioTrackList}\n     * @method Tech.prototype.audioTracks\n     */\n\n    /**\n     * Get the {@link TextTrackList}\n     *\n     * @returns {TextTrackList}\n     * @method Tech.prototype.textTracks\n     */\n\n    /**\n     * Get the remote element {@link TextTrackList}\n     *\n     * @returns {TextTrackList}\n     * @method Tech.prototype.remoteTextTracks\n     */\n\n    /**\n     * Get the remote element {@link HtmlTrackElementList}\n     *\n     * @returns {HtmlTrackElementList}\n     * @method Tech.prototype.remoteTextTrackEls\n     */\n\n    ALL.names.forEach(function (name) {\n        const props = ALL[name];\n        Tech.prototype[props.getterName] = function () {\n            this[props.privateName] = this[props.privateName] || new props.ListClass();\n            return this[props.privateName];\n        };\n    });\n\n    /**\n     * List of associated text tracks\n     *\n     * @type {TextTrackList}\n     * @private\n     * @property Tech#textTracks_\n     */\n\n    /**\n     * List of associated audio tracks.\n     *\n     * @type {AudioTrackList}\n     * @private\n     * @property Tech#audioTracks_\n     */\n\n    /**\n     * List of associated video tracks.\n     *\n     * @type {VideoTrackList}\n     * @private\n     * @property Tech#videoTracks_\n     */\n\n    /**\n     * Boolean indicating whether the `Tech` supports volume control.\n     *\n     * @type {boolean}\n     * @default\n     */\n    Tech.prototype.featuresVolumeControl = true;\n\n    /**\n     * Boolean indicating whether the `Tech` supports muting volume.\n     *\n     * @type {boolean}\n     * @default\n     */\n    Tech.prototype.featuresMuteControl = true;\n\n    /**\n     * Boolean indicating whether the `Tech` supports fullscreen resize control.\n     * Resizing plugins using request fullscreen reloads the plugin\n     *\n     * @type {boolean}\n     * @default\n     */\n    Tech.prototype.featuresFullscreenResize = false;\n\n    /**\n     * Boolean indicating whether the `Tech` supports changing the speed at which the video\n     * plays. Examples:\n     *   - Set player to play 2x (twice) as fast\n     *   - Set player to play 0.5x (half) as fast\n     *\n     * @type {boolean}\n     * @default\n     */\n    Tech.prototype.featuresPlaybackRate = false;\n\n    /**\n     * Boolean indicating whether the `Tech` supports the `progress` event.\n     * This will be used to determine if {@link Tech#manualProgressOn} should be called.\n     *\n     * @type {boolean}\n     * @default\n     */\n    Tech.prototype.featuresProgressEvents = false;\n\n    /**\n     * Boolean indicating whether the `Tech` supports the `sourceset` event.\n     *\n     * A tech should set this to `true` and then use {@link Tech#triggerSourceset}\n     * to trigger a {@link Tech#event:sourceset} at the earliest time after getting\n     * a new source.\n     *\n     * @type {boolean}\n     * @default\n     */\n    Tech.prototype.featuresSourceset = false;\n\n    /**\n     * Boolean indicating whether the `Tech` supports the `timeupdate` event.\n     * This will be used to determine if {@link Tech#manualTimeUpdates} should be called.\n     *\n     * @type {boolean}\n     * @default\n     */\n    Tech.prototype.featuresTimeupdateEvents = false;\n\n    /**\n     * Boolean indicating whether the `Tech` supports the native `TextTrack`s.\n     * This will help us integrate with native `TextTrack`s if the browser supports them.\n     *\n     * @type {boolean}\n     * @default\n     */\n    Tech.prototype.featuresNativeTextTracks = false;\n\n    /**\n     * Boolean indicating whether the `Tech` supports `requestVideoFrameCallback`.\n     *\n     * @type {boolean}\n     * @default\n     */\n    Tech.prototype.featuresVideoFrameCallback = false;\n\n    /**\n     * A functional mixin for techs that want to use the Source Handler pattern.\n     * Source handlers are scripts for handling specific formats.\n     * The source handler pattern is used for adaptive formats (HLS, DASH) that\n     * manually load video data and feed it into a Source Buffer (Media Source Extensions)\n     * Example: `Tech.withSourceHandlers.call(MyTech);`\n     *\n     * @param {Tech} _Tech\n     *        The tech to add source handler functions to.\n     *\n     * @mixes Tech~SourceHandlerAdditions\n     */\n    Tech.withSourceHandlers = function (_Tech) {\n        /**\n         * Register a source handler\n         *\n         * @param {Function} handler\n         *        The source handler class\n         *\n         * @param {number} [index]\n         *        Register it at the following index\n         */\n        _Tech.registerSourceHandler = function (handler, index) {\n            let handlers = _Tech.sourceHandlers;\n            if (!handlers) {\n                handlers = _Tech.sourceHandlers = [];\n            }\n            if (index === undefined) {\n                // add to the end of the list\n                index = handlers.length;\n            }\n            handlers.splice(index, 0, handler);\n        };\n\n        /**\n         * Check if the tech can support the given type. Also checks the\n         * Techs sourceHandlers.\n         *\n         * @param {string} type\n         *         The mimetype to check.\n         *\n         * @return {string}\n         *         'probably', 'maybe', or '' (empty string)\n         */\n        _Tech.canPlayType = function (type) {\n            const handlers = _Tech.sourceHandlers || [];\n            let can;\n            for (let i = 0; i < handlers.length; i++) {\n                can = handlers[i].canPlayType(type);\n                if (can) {\n                    return can;\n                }\n            }\n            return '';\n        };\n\n        /**\n         * Returns the first source handler that supports the source.\n         *\n         * TODO: Answer question: should 'probably' be prioritized over 'maybe'\n         *\n         * @param {Tech~SourceObject} source\n         *        The source object\n         *\n         * @param {Object} options\n         *        The options passed to the tech\n         *\n         * @return {SourceHandler|null}\n         *          The first source handler that supports the source or null if\n         *          no SourceHandler supports the source\n         */\n        _Tech.selectSourceHandler = function (source, options) {\n            const handlers = _Tech.sourceHandlers || [];\n            let can;\n            for (let i = 0; i < handlers.length; i++) {\n                can = handlers[i].canHandleSource(source, options);\n                if (can) {\n                    return handlers[i];\n                }\n            }\n            return null;\n        };\n\n        /**\n         * Check if the tech can support the given source.\n         *\n         * @param {Tech~SourceObject} srcObj\n         *        The source object\n         *\n         * @param {Object} options\n         *        The options passed to the tech\n         *\n         * @return {string}\n         *         'probably', 'maybe', or '' (empty string)\n         */\n        _Tech.canPlaySource = function (srcObj, options) {\n            const sh = _Tech.selectSourceHandler(srcObj, options);\n            if (sh) {\n                return sh.canHandleSource(srcObj, options);\n            }\n            return '';\n        };\n\n        /**\n         * When using a source handler, prefer its implementation of\n         * any function normally provided by the tech.\n         */\n        const deferrable = ['seekable', 'seeking', 'duration'];\n\n        /**\n         * A wrapper around {@link Tech#seekable} that will call a `SourceHandler`s seekable\n         * function if it exists, with a fallback to the Techs seekable function.\n         *\n         * @method _Tech.seekable\n         */\n\n        /**\n         * A wrapper around {@link Tech#duration} that will call a `SourceHandler`s duration\n         * function if it exists, otherwise it will fallback to the techs duration function.\n         *\n         * @method _Tech.duration\n         */\n\n        deferrable.forEach(function (fnName) {\n            const originalFn = this[fnName];\n            if (typeof originalFn !== 'function') {\n                return;\n            }\n            this[fnName] = function () {\n                if (this.sourceHandler_ && this.sourceHandler_[fnName]) {\n                    return this.sourceHandler_[fnName].apply(this.sourceHandler_, arguments);\n                }\n                return originalFn.apply(this, arguments);\n            };\n        }, _Tech.prototype);\n\n        /**\n         * Create a function for setting the source using a source object\n         * and source handlers.\n         * Should never be called unless a source handler was found.\n         *\n         * @param {Tech~SourceObject} source\n         *        A source object with src and type keys\n         */\n        _Tech.prototype.setSource = function (source) {\n            let sh = _Tech.selectSourceHandler(source, this.options_);\n            if (!sh) {\n                // Fall back to a native source handler when unsupported sources are\n                // deliberately set\n                if (_Tech.nativeSourceHandler) {\n                    sh = _Tech.nativeSourceHandler;\n                } else {\n                    log$1.error('No source handler found for the current source.');\n                }\n            }\n\n            // Dispose any existing source handler\n            this.disposeSourceHandler();\n            this.off('dispose', this.disposeSourceHandler_);\n            if (sh !== _Tech.nativeSourceHandler) {\n                this.currentSource_ = source;\n            }\n            this.sourceHandler_ = sh.handleSource(source, this, this.options_);\n            this.one('dispose', this.disposeSourceHandler_);\n        };\n\n        /**\n         * Clean up any existing SourceHandlers and listeners when the Tech is disposed.\n         *\n         * @listens Tech#dispose\n         */\n        _Tech.prototype.disposeSourceHandler = function () {\n            // if we have a source and get another one\n            // then we are loading something new\n            // than clear all of our current tracks\n            if (this.currentSource_) {\n                this.clearTracks(['audio', 'video']);\n                this.currentSource_ = null;\n            }\n\n            // always clean up auto-text tracks\n            this.cleanupAutoTextTracks();\n            if (this.sourceHandler_) {\n                if (this.sourceHandler_.dispose) {\n                    this.sourceHandler_.dispose();\n                }\n                this.sourceHandler_ = null;\n            }\n        };\n    };\n\n    // The base Tech class needs to be registered as a Component. It is the only\n    // Tech that can be registered as a Component.\n    Component$1.registerComponent('Tech', Tech);\n    Tech.registerTech('Tech', Tech);\n\n    /**\n     * A list of techs that should be added to techOrder on Players\n     *\n     * @private\n     */\n    Tech.defaultTechOrder_ = [];\n\n    /**\n     * @file middleware.js\n     * @module middleware\n     */\n    const middlewares = {};\n    const middlewareInstances = {};\n    const TERMINATOR = {};\n\n    /**\n     * A middleware object is a plain JavaScript object that has methods that\n     * match the {@link Tech} methods found in the lists of allowed\n     * {@link module:middleware.allowedGetters|getters},\n     * {@link module:middleware.allowedSetters|setters}, and\n     * {@link module:middleware.allowedMediators|mediators}.\n     *\n     * @typedef {Object} MiddlewareObject\n     */\n\n    /**\n     * A middleware factory function that should return a\n     * {@link module:middleware~MiddlewareObject|MiddlewareObject}.\n     *\n     * This factory will be called for each player when needed, with the player\n     * passed in as an argument.\n     *\n     * @callback MiddlewareFactory\n     * @param { import('../player').default } player\n     *        A Video.js player.\n     */\n\n    /**\n     * Define a middleware that the player should use by way of a factory function\n     * that returns a middleware object.\n     *\n     * @param  {string} type\n     *         The MIME type to match or `\"*\"` for all MIME types.\n     *\n     * @param  {MiddlewareFactory} middleware\n     *         A middleware factory function that will be executed for\n     *         matching types.\n     */\n    function use(type, middleware) {\n        middlewares[type] = middlewares[type] || [];\n        middlewares[type].push(middleware);\n    }\n\n    /**\n     * Asynchronously sets a source using middleware by recursing through any\n     * matching middlewares and calling `setSource` on each, passing along the\n     * previous returned value each time.\n     *\n     * @param  { import('../player').default } player\n     *         A {@link Player} instance.\n     *\n     * @param  {Tech~SourceObject} src\n     *         A source object.\n     *\n     * @param  {Function}\n     *         The next middleware to run.\n     */\n    function setSource(player, src, next) {\n        player.setTimeout(() => setSourceHelper(src, middlewares[src.type], next, player), 1);\n    }\n\n    /**\n     * When the tech is set, passes the tech to each middleware's `setTech` method.\n     *\n     * @param {Object[]} middleware\n     *        An array of middleware instances.\n     *\n     * @param { import('../tech/tech').default } tech\n     *        A Video.js tech.\n     */\n    function setTech(middleware, tech) {\n        middleware.forEach(mw => mw.setTech && mw.setTech(tech));\n    }\n\n    /**\n     * Calls a getter on the tech first, through each middleware\n     * from right to left to the player.\n     *\n     * @param  {Object[]} middleware\n     *         An array of middleware instances.\n     *\n     * @param  { import('../tech/tech').default } tech\n     *         The current tech.\n     *\n     * @param  {string} method\n     *         A method name.\n     *\n     * @return {*}\n     *         The final value from the tech after middleware has intercepted it.\n     */\n    function get(middleware, tech, method) {\n        return middleware.reduceRight(middlewareIterator(method), tech[method]());\n    }\n\n    /**\n     * Takes the argument given to the player and calls the setter method on each\n     * middleware from left to right to the tech.\n     *\n     * @param  {Object[]} middleware\n     *         An array of middleware instances.\n     *\n     * @param  { import('../tech/tech').default } tech\n     *         The current tech.\n     *\n     * @param  {string} method\n     *         A method name.\n     *\n     * @param  {*} arg\n     *         The value to set on the tech.\n     *\n     * @return {*}\n     *         The return value of the `method` of the `tech`.\n     */\n    function set(middleware, tech, method, arg) {\n        return tech[method](middleware.reduce(middlewareIterator(method), arg));\n    }\n\n    /**\n     * Takes the argument given to the player and calls the `call` version of the\n     * method on each middleware from left to right.\n     *\n     * Then, call the passed in method on the tech and return the result unchanged\n     * back to the player, through middleware, this time from right to left.\n     *\n     * @param  {Object[]} middleware\n     *         An array of middleware instances.\n     *\n     * @param  { import('../tech/tech').default } tech\n     *         The current tech.\n     *\n     * @param  {string} method\n     *         A method name.\n     *\n     * @param  {*} arg\n     *         The value to set on the tech.\n     *\n     * @return {*}\n     *         The return value of the `method` of the `tech`, regardless of the\n     *         return values of middlewares.\n     */\n    function mediate(middleware, tech, method, arg = null) {\n        const callMethod = 'call' + toTitleCase$1(method);\n        const middlewareValue = middleware.reduce(middlewareIterator(callMethod), arg);\n        const terminated = middlewareValue === TERMINATOR;\n        // deprecated. The `null` return value should instead return TERMINATOR to\n        // prevent confusion if a techs method actually returns null.\n        const returnValue = terminated ? null : tech[method](middlewareValue);\n        executeRight(middleware, method, returnValue, terminated);\n        return returnValue;\n    }\n\n    /**\n     * Enumeration of allowed getters where the keys are method names.\n     *\n     * @type {Object}\n     */\n    const allowedGetters = {\n        buffered: 1,\n        currentTime: 1,\n        duration: 1,\n        muted: 1,\n        played: 1,\n        paused: 1,\n        seekable: 1,\n        volume: 1,\n        ended: 1\n    };\n\n    /**\n     * Enumeration of allowed setters where the keys are method names.\n     *\n     * @type {Object}\n     */\n    const allowedSetters = {\n        setCurrentTime: 1,\n        setMuted: 1,\n        setVolume: 1\n    };\n\n    /**\n     * Enumeration of allowed mediators where the keys are method names.\n     *\n     * @type {Object}\n     */\n    const allowedMediators = {\n        play: 1,\n        pause: 1\n    };\n    function middlewareIterator(method) {\n        return (value, mw) => {\n            // if the previous middleware terminated, pass along the termination\n            if (value === TERMINATOR) {\n                return TERMINATOR;\n            }\n            if (mw[method]) {\n                return mw[method](value);\n            }\n            return value;\n        };\n    }\n    function executeRight(mws, method, value, terminated) {\n        for (let i = mws.length - 1; i >= 0; i--) {\n            const mw = mws[i];\n            if (mw[method]) {\n                mw[method](terminated, value);\n            }\n        }\n    }\n\n    /**\n     * Clear the middleware cache for a player.\n     *\n     * @param  { import('../player').default } player\n     *         A {@link Player} instance.\n     */\n    function clearCacheForPlayer(player) {\n        middlewareInstances[player.id()] = null;\n    }\n\n    /**\n     * {\n     *  [playerId]: [[mwFactory, mwInstance], ...]\n     * }\n     *\n     * @private\n     */\n    function getOrCreateFactory(player, mwFactory) {\n        const mws = middlewareInstances[player.id()];\n        let mw = null;\n        if (mws === undefined || mws === null) {\n            mw = mwFactory(player);\n            middlewareInstances[player.id()] = [[mwFactory, mw]];\n            return mw;\n        }\n        for (let i = 0; i < mws.length; i++) {\n            const [mwf, mwi] = mws[i];\n            if (mwf !== mwFactory) {\n                continue;\n            }\n            mw = mwi;\n        }\n        if (mw === null) {\n            mw = mwFactory(player);\n            mws.push([mwFactory, mw]);\n        }\n        return mw;\n    }\n    function setSourceHelper(src = {}, middleware = [], next, player, acc = [], lastRun = false) {\n        const [mwFactory, ...mwrest] = middleware;\n\n        // if mwFactory is a string, then we're at a fork in the road\n        if (typeof mwFactory === 'string') {\n            setSourceHelper(src, middlewares[mwFactory], next, player, acc, lastRun);\n\n            // if we have an mwFactory, call it with the player to get the mw,\n            // then call the mw's setSource method\n        } else if (mwFactory) {\n            const mw = getOrCreateFactory(player, mwFactory);\n\n            // if setSource isn't present, implicitly select this middleware\n            if (!mw.setSource) {\n                acc.push(mw);\n                return setSourceHelper(src, mwrest, next, player, acc, lastRun);\n            }\n            mw.setSource(Object.assign({}, src), function (err, _src) {\n                // something happened, try the next middleware on the current level\n                // make sure to use the old src\n                if (err) {\n                    return setSourceHelper(src, mwrest, next, player, acc, lastRun);\n                }\n\n                // we've succeeded, now we need to go deeper\n                acc.push(mw);\n\n                // if it's the same type, continue down the current chain\n                // otherwise, we want to go down the new chain\n                setSourceHelper(_src, src.type === _src.type ? mwrest : middlewares[_src.type], next, player, acc, lastRun);\n            });\n        } else if (mwrest.length) {\n            setSourceHelper(src, mwrest, next, player, acc, lastRun);\n        } else if (lastRun) {\n            next(src, acc);\n        } else {\n            setSourceHelper(src, middlewares['*'], next, player, acc, true);\n        }\n    }\n\n    /**\n     * Mimetypes\n     *\n     * @see https://www.iana.org/assignments/media-types/media-types.xhtml\n     * @typedef Mimetypes~Kind\n     * @enum\n     */\n    const MimetypesKind = {\n        opus: 'video/ogg',\n        ogv: 'video/ogg',\n        mp4: 'video/mp4',\n        mov: 'video/mp4',\n        m4v: 'video/mp4',\n        mkv: 'video/x-matroska',\n        m4a: 'audio/mp4',\n        mp3: 'audio/mpeg',\n        aac: 'audio/aac',\n        caf: 'audio/x-caf',\n        flac: 'audio/flac',\n        oga: 'audio/ogg',\n        wav: 'audio/wav',\n        m3u8: 'application/x-mpegURL',\n        mpd: 'application/dash+xml',\n        jpg: 'image/jpeg',\n        jpeg: 'image/jpeg',\n        gif: 'image/gif',\n        png: 'image/png',\n        svg: 'image/svg+xml',\n        webp: 'image/webp'\n    };\n\n    /**\n     * Get the mimetype of a given src url if possible\n     *\n     * @param {string} src\n     *        The url to the src\n     *\n     * @return {string}\n     *         return the mimetype if it was known or empty string otherwise\n     */\n    const getMimetype = function (src = '') {\n        const ext = getFileExtension(src);\n        const mimetype = MimetypesKind[ext.toLowerCase()];\n        return mimetype || '';\n    };\n\n    /**\n     * Find the mime type of a given source string if possible. Uses the player\n     * source cache.\n     *\n     * @param { import('../player').default } player\n     *        The player object\n     *\n     * @param {string} src\n     *        The source string\n     *\n     * @return {string}\n     *         The type that was found\n     */\n    const findMimetype = (player, src) => {\n        if (!src) {\n            return '';\n        }\n\n        // 1. check for the type in the `source` cache\n        if (player.cache_.source.src === src && player.cache_.source.type) {\n            return player.cache_.source.type;\n        }\n\n        // 2. see if we have this source in our `currentSources` cache\n        const matchingSources = player.cache_.sources.filter(s => s.src === src);\n        if (matchingSources.length) {\n            return matchingSources[0].type;\n        }\n\n        // 3. look for the src url in source elements and use the type there\n        const sources = player.$$('source');\n        for (let i = 0; i < sources.length; i++) {\n            const s = sources[i];\n            if (s.type && s.src && s.src === src) {\n                return s.type;\n            }\n        }\n\n        // 4. finally fallback to our list of mime types based on src url extension\n        return getMimetype(src);\n    };\n\n    /**\n     * @module filter-source\n     */\n\n    /**\n     * Filter out single bad source objects or multiple source objects in an\n     * array. Also flattens nested source object arrays into a 1 dimensional\n     * array of source objects.\n     *\n     * @param {Tech~SourceObject|Tech~SourceObject[]} src\n     *        The src object to filter\n     *\n     * @return {Tech~SourceObject[]}\n     *         An array of sourceobjects containing only valid sources\n     *\n     * @private\n     */\n    const filterSource = function (src) {\n        // traverse array\n        if (Array.isArray(src)) {\n            let newsrc = [];\n            src.forEach(function (srcobj) {\n                srcobj = filterSource(srcobj);\n                if (Array.isArray(srcobj)) {\n                    newsrc = newsrc.concat(srcobj);\n                } else if (isObject$1(srcobj)) {\n                    newsrc.push(srcobj);\n                }\n            });\n            src = newsrc;\n        } else if (typeof src === 'string' && src.trim()) {\n            // convert string into object\n            src = [fixSource({\n                src\n            })];\n        } else if (isObject$1(src) && typeof src.src === 'string' && src.src && src.src.trim()) {\n            // src is already valid\n            src = [fixSource(src)];\n        } else {\n            // invalid source, turn it into an empty array\n            src = [];\n        }\n        return src;\n    };\n\n    /**\n     * Checks src mimetype, adding it when possible\n     *\n     * @param {Tech~SourceObject} src\n     *        The src object to check\n     * @return {Tech~SourceObject}\n     *        src Object with known type\n     */\n    function fixSource(src) {\n        if (!src.type) {\n            const mimetype = getMimetype(src.src);\n            if (mimetype) {\n                src.type = mimetype;\n            }\n        }\n        return src;\n    }\n\n    /**\n     * @file loader.js\n     */\n\n    /**\n     * The `MediaLoader` is the `Component` that decides which playback technology to load\n     * when a player is initialized.\n     *\n     * @extends Component\n     */\n    class MediaLoader extends Component$1 {\n        /**\n         * Create an instance of this class.\n         *\n         * @param { import('../player').default } player\n         *        The `Player` that this class should attach to.\n         *\n         * @param {Object} [options]\n         *        The key/value store of player options.\n         *\n         * @param {Function} [ready]\n         *        The function that is run when this component is ready.\n         */\n        constructor(player, options, ready) {\n            // MediaLoader has no element\n            const options_ = merge$2({\n                createEl: false\n            }, options);\n            super(player, options_, ready);\n\n            // If there are no sources when the player is initialized,\n            // load the first supported playback technology.\n\n            if (!options.playerOptions.sources || options.playerOptions.sources.length === 0) {\n                for (let i = 0, j = options.playerOptions.techOrder; i < j.length; i++) {\n                    const techName = toTitleCase$1(j[i]);\n                    let tech = Tech.getTech(techName);\n\n                    // Support old behavior of techs being registered as components.\n                    // Remove once that deprecated behavior is removed.\n                    if (!techName) {\n                        tech = Component$1.getComponent(techName);\n                    }\n\n                    // Check if the browser supports this technology\n                    if (tech && tech.isSupported()) {\n                        player.loadTech_(techName);\n                        break;\n                    }\n                }\n            } else {\n                // Loop through playback technologies (e.g. HTML5) and check for support.\n                // Then load the best source.\n                // A few assumptions here:\n                //   All playback technologies respect preload false.\n                player.src(options.playerOptions.sources);\n            }\n        }\n    }\n    Component$1.registerComponent('MediaLoader', MediaLoader);\n\n    /**\n     * @file clickable-component.js\n     */\n\n    /**\n     * Component which is clickable or keyboard actionable, but is not a\n     * native HTML button.\n     *\n     * @extends Component\n     */\n    class ClickableComponent extends Component$1 {\n        /**\n         * Creates an instance of this class.\n         *\n         * @param  { import('./player').default } player\n         *         The `Player` that this class should be attached to.\n         *\n         * @param  {Object} [options]\n         *         The key/value store of component options.\n         *\n         * @param  {function} [options.clickHandler]\n         *         The function to call when the button is clicked / activated\n         *\n         * @param  {string} [options.controlText]\n         *         The text to set on the button\n         *\n         * @param  {string} [options.className]\n         *         A class or space separated list of classes to add the component\n         *\n         */\n        constructor(player, options) {\n            super(player, options);\n            if (this.options_.controlText) {\n                this.controlText(this.options_.controlText);\n            }\n            this.handleMouseOver_ = e => this.handleMouseOver(e);\n            this.handleMouseOut_ = e => this.handleMouseOut(e);\n            this.handleClick_ = e => this.handleClick(e);\n            this.handleKeyDown_ = e => this.handleKeyDown(e);\n            this.emitTapEvents();\n            this.enable();\n        }\n\n        /**\n         * Create the `ClickableComponent`s DOM element.\n         *\n         * @param {string} [tag=div]\n         *        The element's node type.\n         *\n         * @param {Object} [props={}]\n         *        An object of properties that should be set on the element.\n         *\n         * @param {Object} [attributes={}]\n         *        An object of attributes that should be set on the element.\n         *\n         * @return {Element}\n         *         The element that gets created.\n         */\n        createEl(tag = 'div', props = {}, attributes = {}) {\n            props = Object.assign({\n                className: this.buildCSSClass(),\n                tabIndex: 0\n            }, props);\n            if (tag === 'button') {\n                log$1.error(`Creating a ClickableComponent with an HTML element of ${tag} is not supported; use a Button instead.`);\n            }\n\n            // Add ARIA attributes for clickable element which is not a native HTML button\n            attributes = Object.assign({\n                role: 'button'\n            }, attributes);\n            this.tabIndex_ = props.tabIndex;\n            const el = createEl(tag, props, attributes);\n            el.appendChild(createEl('span', {\n                className: 'vjs-icon-placeholder'\n            }, {\n                'aria-hidden': true\n            }));\n            this.createControlTextEl(el);\n            return el;\n        }\n        dispose() {\n            // remove controlTextEl_ on dispose\n            this.controlTextEl_ = null;\n            super.dispose();\n        }\n\n        /**\n         * Create a control text element on this `ClickableComponent`\n         *\n         * @param {Element} [el]\n         *        Parent element for the control text.\n         *\n         * @return {Element}\n         *         The control text element that gets created.\n         */\n        createControlTextEl(el) {\n            this.controlTextEl_ = createEl('span', {\n                className: 'vjs-control-text'\n            }, {\n                // let the screen reader user know that the text of the element may change\n                'aria-live': 'polite'\n            });\n            if (el) {\n                el.appendChild(this.controlTextEl_);\n            }\n            this.controlText(this.controlText_, el);\n            return this.controlTextEl_;\n        }\n\n        /**\n         * Get or set the localize text to use for the controls on the `ClickableComponent`.\n         *\n         * @param {string} [text]\n         *        Control text for element.\n         *\n         * @param {Element} [el=this.el()]\n         *        Element to set the title on.\n         *\n         * @return {string}\n         *         - The control text when getting\n         */\n        controlText(text, el = this.el()) {\n            if (text === undefined) {\n                return this.controlText_ || 'Need Text';\n            }\n            const localizedText = this.localize(text);\n\n            /** @protected */\n            this.controlText_ = text;\n            textContent(this.controlTextEl_, localizedText);\n            if (!this.nonIconControl && !this.player_.options_.noUITitleAttributes) {\n                // Set title attribute if only an icon is shown\n                el.setAttribute('title', localizedText);\n            }\n        }\n\n        /**\n         * Builds the default DOM `className`.\n         *\n         * @return {string}\n         *         The DOM `className` for this object.\n         */\n        buildCSSClass() {\n            return `vjs-control vjs-button ${super.buildCSSClass()}`;\n        }\n\n        /**\n         * Enable this `ClickableComponent`\n         */\n        enable() {\n            if (!this.enabled_) {\n                this.enabled_ = true;\n                this.removeClass('vjs-disabled');\n                this.el_.setAttribute('aria-disabled', 'false');\n                if (typeof this.tabIndex_ !== 'undefined') {\n                    this.el_.setAttribute('tabIndex', this.tabIndex_);\n                }\n                this.on(['tap', 'click'], this.handleClick_);\n                this.on('keydown', this.handleKeyDown_);\n            }\n        }\n\n        /**\n         * Disable this `ClickableComponent`\n         */\n        disable() {\n            this.enabled_ = false;\n            this.addClass('vjs-disabled');\n            this.el_.setAttribute('aria-disabled', 'true');\n            if (typeof this.tabIndex_ !== 'undefined') {\n                this.el_.removeAttribute('tabIndex');\n            }\n            this.off('mouseover', this.handleMouseOver_);\n            this.off('mouseout', this.handleMouseOut_);\n            this.off(['tap', 'click'], this.handleClick_);\n            this.off('keydown', this.handleKeyDown_);\n        }\n\n        /**\n         * Handles language change in ClickableComponent for the player in components\n         *\n         *\n         */\n        handleLanguagechange() {\n            this.controlText(this.controlText_);\n        }\n\n        /**\n         * Event handler that is called when a `ClickableComponent` receives a\n         * `click` or `tap` event.\n         *\n         * @param {Event} event\n         *        The `tap` or `click` event that caused this function to be called.\n         *\n         * @listens tap\n         * @listens click\n         * @abstract\n         */\n        handleClick(event) {\n            if (this.options_.clickHandler) {\n                this.options_.clickHandler.call(this, arguments);\n            }\n        }\n\n        /**\n         * Event handler that is called when a `ClickableComponent` receives a\n         * `keydown` event.\n         *\n         * By default, if the key is Space or Enter, it will trigger a `click` event.\n         *\n         * @param {Event} event\n         *        The `keydown` event that caused this function to be called.\n         *\n         * @listens keydown\n         */\n        handleKeyDown(event) {\n            // Support Space or Enter key operation to fire a click event. Also,\n            // prevent the event from propagating through the DOM and triggering\n            // Player hotkeys.\n            if (keycode.isEventKey(event, 'Space') || keycode.isEventKey(event, 'Enter')) {\n                event.preventDefault();\n                event.stopPropagation();\n                this.trigger('click');\n            } else {\n                // Pass keypress handling up for unsupported keys\n                super.handleKeyDown(event);\n            }\n        }\n    }\n    Component$1.registerComponent('ClickableComponent', ClickableComponent);\n\n    /**\n     * @file poster-image.js\n     */\n\n    /**\n     * A `ClickableComponent` that handles showing the poster image for the player.\n     *\n     * @extends ClickableComponent\n     */\n    class PosterImage extends ClickableComponent {\n        /**\n         * Create an instance of this class.\n         *\n         * @param { import('./player').default } player\n         *        The `Player` that this class should attach to.\n         *\n         * @param {Object} [options]\n         *        The key/value store of player options.\n         */\n        constructor(player, options) {\n            super(player, options);\n            this.update();\n            this.update_ = e => this.update(e);\n            player.on('posterchange', this.update_);\n        }\n\n        /**\n         * Clean up and dispose of the `PosterImage`.\n         */\n        dispose() {\n            this.player().off('posterchange', this.update_);\n            super.dispose();\n        }\n\n        /**\n         * Create the `PosterImage`s DOM element.\n         *\n         * @return {Element}\n         *         The element that gets created.\n         */\n        createEl() {\n            // The el is an empty div to keep position in the DOM\n            // A picture and img el will be inserted when a source is set\n            return createEl('div', {\n                className: 'vjs-poster'\n            });\n        }\n\n        /**\n         * Get or set the `PosterImage`'s crossOrigin option.\n         *\n         * @param {string|null} [value]\n         *        The value to set the crossOrigin to. If an argument is\n         *        given, must be one of `'anonymous'` or `'use-credentials'`, or 'null'.\n         *\n         * @return {string|null}\n         *         - The current crossOrigin value of the `Player` when getting.\n         *         - undefined when setting\n         */\n        crossOrigin(value) {\n            // `null` can be set to unset a value\n            if (typeof value === 'undefined') {\n                if (this.$('img')) {\n                    // If the poster's element exists, give its value\n                    return this.$('img').crossOrigin;\n                } else if (this.player_.tech_ && this.player_.tech_.isReady_) {\n                    // If not but the tech is ready, query the tech\n                    return this.player_.crossOrigin();\n                }\n                // Otherwise check options as the  poster is usually set before the state of crossorigin\n                // can be retrieved by the getter\n                return this.player_.options_.crossOrigin || this.player_.options_.crossorigin || null;\n            }\n            if (value !== null && value !== 'anonymous' && value !== 'use-credentials') {\n                this.player_.log.warn(`crossOrigin must be null,  \"anonymous\" or \"use-credentials\", given \"${value}\"`);\n                return;\n            }\n            if (this.$('img')) {\n                this.$('img').crossOrigin = value;\n            }\n            return;\n        }\n\n        /**\n         * An {@link EventTarget~EventListener} for {@link Player#posterchange} events.\n         *\n         * @listens Player#posterchange\n         *\n         * @param {Event} [event]\n         *        The `Player#posterchange` event that triggered this function.\n         */\n        update(event) {\n            const url = this.player().poster();\n            this.setSrc(url);\n\n            // If there's no poster source we should display:none on this component\n            // so it's not still clickable or right-clickable\n            if (url) {\n                this.show();\n            } else {\n                this.hide();\n            }\n        }\n\n        /**\n         * Set the source of the `PosterImage` depending on the display method. (Re)creates\n         * the inner picture and img elementss when needed.\n         *\n         * @param {string} [url]\n         *        The URL to the source for the `PosterImage`. If not specified or falsy,\n         *        any source and ant inner picture/img are removed.\n         */\n        setSrc(url) {\n            if (!url) {\n                this.el_.textContent = '';\n                return;\n            }\n            if (!this.$('img')) {\n                this.el_.appendChild(createEl('picture', {\n                    className: 'vjs-poster',\n                    // Don't want poster to be tabbable.\n                    tabIndex: -1\n                }, {}, createEl('img', {\n                    loading: 'lazy',\n                    crossOrigin: this.crossOrigin()\n                }, {\n                    alt: ''\n                })));\n            }\n            this.$('img').src = url;\n        }\n\n        /**\n         * An {@link EventTarget~EventListener} for clicks on the `PosterImage`. See\n         * {@link ClickableComponent#handleClick} for instances where this will be triggered.\n         *\n         * @listens tap\n         * @listens click\n         * @listens keydown\n         *\n         * @param {Event} event\n         +        The `click`, `tap` or `keydown` event that caused this function to be called.\n         */\n        handleClick(event) {\n            // We don't want a click to trigger playback when controls are disabled\n            if (!this.player_.controls()) {\n                return;\n            }\n            if (this.player_.tech(true)) {\n                this.player_.tech(true).focus();\n            }\n            if (this.player_.paused()) {\n                silencePromise(this.player_.play());\n            } else {\n                this.player_.pause();\n            }\n        }\n    }\n\n    /**\n     * Get or set the `PosterImage`'s crossorigin option. For the HTML5 player, this\n     * sets the `crossOrigin` property on the `<img>` tag to control the CORS\n     * behavior.\n     *\n     * @param {string|null} [value]\n     *        The value to set the `PosterImages`'s crossorigin to. If an argument is\n     *        given, must be one of `anonymous` or `use-credentials`.\n     *\n     * @return {string|null|undefined}\n     *         - The current crossorigin value of the `Player` when getting.\n     *         - undefined when setting\n     */\n    PosterImage.prototype.crossorigin = PosterImage.prototype.crossOrigin;\n    Component$1.registerComponent('PosterImage', PosterImage);\n\n    /**\n     * @file text-track-display.js\n     */\n    const darkGray = '#222';\n    const lightGray = '#ccc';\n    const fontMap = {\n        monospace: 'monospace',\n        sansSerif: 'sans-serif',\n        serif: 'serif',\n        monospaceSansSerif: '\"Andale Mono\", \"Lucida Console\", monospace',\n        monospaceSerif: '\"Courier New\", monospace',\n        proportionalSansSerif: 'sans-serif',\n        proportionalSerif: 'serif',\n        casual: '\"Comic Sans MS\", Impact, fantasy',\n        script: '\"Monotype Corsiva\", cursive',\n        smallcaps: '\"Andale Mono\", \"Lucida Console\", monospace, sans-serif'\n    };\n\n    /**\n     * Construct an rgba color from a given hex color code.\n     *\n     * @param {number} color\n     *        Hex number for color, like #f0e or #f604e2.\n     *\n     * @param {number} opacity\n     *        Value for opacity, 0.0 - 1.0.\n     *\n     * @return {string}\n     *         The rgba color that was created, like 'rgba(255, 0, 0, 0.3)'.\n     */\n    function constructColor(color, opacity) {\n        let hex;\n        if (color.length === 4) {\n            // color looks like \"#f0e\"\n            hex = color[1] + color[1] + color[2] + color[2] + color[3] + color[3];\n        } else if (color.length === 7) {\n            // color looks like \"#f604e2\"\n            hex = color.slice(1);\n        } else {\n            throw new Error('Invalid color code provided, ' + color + '; must be formatted as e.g. #f0e or #f604e2.');\n        }\n        return 'rgba(' + parseInt(hex.slice(0, 2), 16) + ',' + parseInt(hex.slice(2, 4), 16) + ',' + parseInt(hex.slice(4, 6), 16) + ',' + opacity + ')';\n    }\n\n    /**\n     * Try to update the style of a DOM element. Some style changes will throw an error,\n     * particularly in IE8. Those should be noops.\n     *\n     * @param {Element} el\n     *        The DOM element to be styled.\n     *\n     * @param {string} style\n     *        The CSS property on the element that should be styled.\n     *\n     * @param {string} rule\n     *        The style rule that should be applied to the property.\n     *\n     * @private\n     */\n    function tryUpdateStyle(el, style, rule) {\n        try {\n            el.style[style] = rule;\n        } catch (e) {\n            // Satisfies linter.\n            return;\n        }\n    }\n\n    /**\n     * The component for displaying text track cues.\n     *\n     * @extends Component\n     */\n    class TextTrackDisplay extends Component$1 {\n        /**\n         * Creates an instance of this class.\n         *\n         * @param { import('../player').default } player\n         *        The `Player` that this class should be attached to.\n         *\n         * @param {Object} [options]\n         *        The key/value store of player options.\n         *\n         * @param {Function} [ready]\n         *        The function to call when `TextTrackDisplay` is ready.\n         */\n        constructor(player, options, ready) {\n            super(player, options, ready);\n            const updateDisplayHandler = e => this.updateDisplay(e);\n            player.on('loadstart', e => this.toggleDisplay(e));\n            player.on('texttrackchange', updateDisplayHandler);\n            player.on('loadedmetadata', e => this.preselectTrack(e));\n\n            // This used to be called during player init, but was causing an error\n            // if a track should show by default and the display hadn't loaded yet.\n            // Should probably be moved to an external track loader when we support\n            // tracks that don't need a display.\n            player.ready(bind_(this, function () {\n                if (player.tech_ && player.tech_.featuresNativeTextTracks) {\n                    this.hide();\n                    return;\n                }\n                player.on('fullscreenchange', updateDisplayHandler);\n                player.on('playerresize', updateDisplayHandler);\n                const screenOrientation = window.screen.orientation || window;\n                const changeOrientationEvent = window.screen.orientation ? 'change' : 'orientationchange';\n                screenOrientation.addEventListener(changeOrientationEvent, updateDisplayHandler);\n                player.on('dispose', () => screenOrientation.removeEventListener(changeOrientationEvent, updateDisplayHandler));\n                const tracks = this.options_.playerOptions.tracks || [];\n                for (let i = 0; i < tracks.length; i++) {\n                    this.player_.addRemoteTextTrack(tracks[i], true);\n                }\n                this.preselectTrack();\n            }));\n        }\n\n        /**\n         * Preselect a track following this precedence:\n         * - matches the previously selected {@link TextTrack}'s language and kind\n         * - matches the previously selected {@link TextTrack}'s language only\n         * - is the first default captions track\n         * - is the first default descriptions track\n         *\n         * @listens Player#loadstart\n         */\n        preselectTrack() {\n            const modes = {\n                captions: 1,\n                subtitles: 1\n            };\n            const trackList = this.player_.textTracks();\n            const userPref = this.player_.cache_.selectedLanguage;\n            let firstDesc;\n            let firstCaptions;\n            let preferredTrack;\n            for (let i = 0; i < trackList.length; i++) {\n                const track = trackList[i];\n                if (userPref && userPref.enabled && userPref.language && userPref.language === track.language && track.kind in modes) {\n                    // Always choose the track that matches both language and kind\n                    if (track.kind === userPref.kind) {\n                        preferredTrack = track;\n                        // or choose the first track that matches language\n                    } else if (!preferredTrack) {\n                        preferredTrack = track;\n                    }\n\n                    // clear everything if offTextTrackMenuItem was clicked\n                } else if (userPref && !userPref.enabled) {\n                    preferredTrack = null;\n                    firstDesc = null;\n                    firstCaptions = null;\n                } else if (track.default) {\n                    if (track.kind === 'descriptions' && !firstDesc) {\n                        firstDesc = track;\n                    } else if (track.kind in modes && !firstCaptions) {\n                        firstCaptions = track;\n                    }\n                }\n            }\n\n            // The preferredTrack matches the user preference and takes\n            // precedence over all the other tracks.\n            // So, display the preferredTrack before the first default track\n            // and the subtitles/captions track before the descriptions track\n            if (preferredTrack) {\n                preferredTrack.mode = 'showing';\n            } else if (firstCaptions) {\n                firstCaptions.mode = 'showing';\n            } else if (firstDesc) {\n                firstDesc.mode = 'showing';\n            }\n        }\n\n        /**\n         * Turn display of {@link TextTrack}'s from the current state into the other state.\n         * There are only two states:\n         * - 'shown'\n         * - 'hidden'\n         *\n         * @listens Player#loadstart\n         */\n        toggleDisplay() {\n            if (this.player_.tech_ && this.player_.tech_.featuresNativeTextTracks) {\n                this.hide();\n            } else {\n                this.show();\n            }\n        }\n\n        /**\n         * Create the {@link Component}'s DOM element.\n         *\n         * @return {Element}\n         *         The element that was created.\n         */\n        createEl() {\n            return super.createEl('div', {\n                className: 'vjs-text-track-display'\n            }, {\n                'translate': 'yes',\n                'aria-live': 'off',\n                'aria-atomic': 'true'\n            });\n        }\n\n        /**\n         * Clear all displayed {@link TextTrack}s.\n         */\n        clearDisplay() {\n            if (typeof window.WebVTT === 'function') {\n                window.WebVTT.processCues(window, [], this.el_);\n            }\n        }\n\n        /**\n         * Update the displayed TextTrack when a either a {@link Player#texttrackchange} or\n         * a {@link Player#fullscreenchange} is fired.\n         *\n         * @listens Player#texttrackchange\n         * @listens Player#fullscreenchange\n         */\n        updateDisplay() {\n            const tracks = this.player_.textTracks();\n            const allowMultipleShowingTracks = this.options_.allowMultipleShowingTracks;\n            this.clearDisplay();\n            if (allowMultipleShowingTracks) {\n                const showingTracks = [];\n                for (let i = 0; i < tracks.length; ++i) {\n                    const track = tracks[i];\n                    if (track.mode !== 'showing') {\n                        continue;\n                    }\n                    showingTracks.push(track);\n                }\n                this.updateForTrack(showingTracks);\n                return;\n            }\n\n            //  Track display prioritization model: if multiple tracks are 'showing',\n            //  display the first 'subtitles' or 'captions' track which is 'showing',\n            //  otherwise display the first 'descriptions' track which is 'showing'\n\n            let descriptionsTrack = null;\n            let captionsSubtitlesTrack = null;\n            let i = tracks.length;\n            while (i--) {\n                const track = tracks[i];\n                if (track.mode === 'showing') {\n                    if (track.kind === 'descriptions') {\n                        descriptionsTrack = track;\n                    } else {\n                        captionsSubtitlesTrack = track;\n                    }\n                }\n            }\n            if (captionsSubtitlesTrack) {\n                if (this.getAttribute('aria-live') !== 'off') {\n                    this.setAttribute('aria-live', 'off');\n                }\n                this.updateForTrack(captionsSubtitlesTrack);\n            } else if (descriptionsTrack) {\n                if (this.getAttribute('aria-live') !== 'assertive') {\n                    this.setAttribute('aria-live', 'assertive');\n                }\n                this.updateForTrack(descriptionsTrack);\n            }\n        }\n\n        /**\n         * Style {@Link TextTrack} activeCues according to {@Link TextTrackSettings}.\n         *\n         * @param {TextTrack} track\n         *        Text track object containing active cues to style.\n         */\n        updateDisplayState(track) {\n            const overrides = this.player_.textTrackSettings.getValues();\n            const cues = track.activeCues;\n            let i = cues.length;\n            while (i--) {\n                const cue = cues[i];\n                if (!cue) {\n                    continue;\n                }\n                const cueDiv = cue.displayState;\n                if (overrides.color) {\n                    cueDiv.firstChild.style.color = overrides.color;\n                }\n                if (overrides.textOpacity) {\n                    tryUpdateStyle(cueDiv.firstChild, 'color', constructColor(overrides.color || '#fff', overrides.textOpacity));\n                }\n                if (overrides.backgroundColor) {\n                    cueDiv.firstChild.style.backgroundColor = overrides.backgroundColor;\n                }\n                if (overrides.backgroundOpacity) {\n                    tryUpdateStyle(cueDiv.firstChild, 'backgroundColor', constructColor(overrides.backgroundColor || '#000', overrides.backgroundOpacity));\n                }\n                if (overrides.windowColor) {\n                    if (overrides.windowOpacity) {\n                        tryUpdateStyle(cueDiv, 'backgroundColor', constructColor(overrides.windowColor, overrides.windowOpacity));\n                    } else {\n                        cueDiv.style.backgroundColor = overrides.windowColor;\n                    }\n                }\n                if (overrides.edgeStyle) {\n                    if (overrides.edgeStyle === 'dropshadow') {\n                        cueDiv.firstChild.style.textShadow = `2px 2px 3px ${darkGray}, 2px 2px 4px ${darkGray}, 2px 2px 5px ${darkGray}`;\n                    } else if (overrides.edgeStyle === 'raised') {\n                        cueDiv.firstChild.style.textShadow = `1px 1px ${darkGray}, 2px 2px ${darkGray}, 3px 3px ${darkGray}`;\n                    } else if (overrides.edgeStyle === 'depressed') {\n                        cueDiv.firstChild.style.textShadow = `1px 1px ${lightGray}, 0 1px ${lightGray}, -1px -1px ${darkGray}, 0 -1px ${darkGray}`;\n                    } else if (overrides.edgeStyle === 'uniform') {\n                        cueDiv.firstChild.style.textShadow = `0 0 4px ${darkGray}, 0 0 4px ${darkGray}, 0 0 4px ${darkGray}, 0 0 4px ${darkGray}`;\n                    }\n                }\n                if (overrides.fontPercent && overrides.fontPercent !== 1) {\n                    const fontSize = window.parseFloat(cueDiv.style.fontSize);\n                    cueDiv.style.fontSize = fontSize * overrides.fontPercent + 'px';\n                    cueDiv.style.height = 'auto';\n                    cueDiv.style.top = 'auto';\n                }\n                if (overrides.fontFamily && overrides.fontFamily !== 'default') {\n                    if (overrides.fontFamily === 'small-caps') {\n                        cueDiv.firstChild.style.fontVariant = 'small-caps';\n                    } else {\n                        cueDiv.firstChild.style.fontFamily = fontMap[overrides.fontFamily];\n                    }\n                }\n            }\n        }\n\n        /**\n         * Add an {@link TextTrack} to to the {@link Tech}s {@link TextTrackList}.\n         *\n         * @param {TextTrack|TextTrack[]} tracks\n         *        Text track object or text track array to be added to the list.\n         */\n        updateForTrack(tracks) {\n            if (!Array.isArray(tracks)) {\n                tracks = [tracks];\n            }\n            if (typeof window.WebVTT !== 'function' || tracks.every(track => {\n                return !track.activeCues;\n            })) {\n                return;\n            }\n            const cues = [];\n\n            // push all active track cues\n            for (let i = 0; i < tracks.length; ++i) {\n                const track = tracks[i];\n                for (let j = 0; j < track.activeCues.length; ++j) {\n                    cues.push(track.activeCues[j]);\n                }\n            }\n\n            // removes all cues before it processes new ones\n            window.WebVTT.processCues(window, cues, this.el_);\n\n            // add unique class to each language text track & add settings styling if necessary\n            for (let i = 0; i < tracks.length; ++i) {\n                const track = tracks[i];\n                for (let j = 0; j < track.activeCues.length; ++j) {\n                    const cueEl = track.activeCues[j].displayState;\n                    addClass(cueEl, 'vjs-text-track-cue', 'vjs-text-track-cue-' + (track.language ? track.language : i));\n                    if (track.language) {\n                        setAttribute(cueEl, 'lang', track.language);\n                    }\n                }\n                if (this.player_.textTrackSettings) {\n                    this.updateDisplayState(track);\n                }\n            }\n        }\n    }\n    Component$1.registerComponent('TextTrackDisplay', TextTrackDisplay);\n\n    /**\n     * @file loading-spinner.js\n     */\n\n    /**\n     * A loading spinner for use during waiting/loading events.\n     *\n     * @extends Component\n     */\n    class LoadingSpinner extends Component$1 {\n        /**\n         * Create the `LoadingSpinner`s DOM element.\n         *\n         * @return {Element}\n         *         The dom element that gets created.\n         */\n        createEl() {\n            const isAudio = this.player_.isAudio();\n            const playerType = this.localize(isAudio ? 'Audio Player' : 'Video Player');\n            const controlText = createEl('span', {\n                className: 'vjs-control-text',\n                textContent: this.localize('{1} is loading.', [playerType])\n            });\n            const el = super.createEl('div', {\n                className: 'vjs-loading-spinner',\n                dir: 'ltr'\n            });\n            el.appendChild(controlText);\n            return el;\n        }\n\n        /**\n         * Update control text on languagechange\n         */\n        handleLanguagechange() {\n            this.$('.vjs-control-text').textContent = this.localize('{1} is loading.', [this.player_.isAudio() ? 'Audio Player' : 'Video Player']);\n        }\n    }\n    Component$1.registerComponent('LoadingSpinner', LoadingSpinner);\n\n    /**\n     * @file button.js\n     */\n\n    /**\n     * Base class for all buttons.\n     *\n     * @extends ClickableComponent\n     */\n    class Button extends ClickableComponent {\n        /**\n         * Create the `Button`s DOM element.\n         *\n         * @param {string} [tag=\"button\"]\n         *        The element's node type. This argument is IGNORED: no matter what\n         *        is passed, it will always create a `button` element.\n         *\n         * @param {Object} [props={}]\n         *        An object of properties that should be set on the element.\n         *\n         * @param {Object} [attributes={}]\n         *        An object of attributes that should be set on the element.\n         *\n         * @return {Element}\n         *         The element that gets created.\n         */\n        createEl(tag, props = {}, attributes = {}) {\n            tag = 'button';\n            props = Object.assign({\n                className: this.buildCSSClass()\n            }, props);\n\n            // Add attributes for button element\n            attributes = Object.assign({\n                // Necessary since the default button type is \"submit\"\n                type: 'button'\n            }, attributes);\n            const el = createEl(tag, props, attributes);\n            el.appendChild(createEl('span', {\n                className: 'vjs-icon-placeholder'\n            }, {\n                'aria-hidden': true\n            }));\n            this.createControlTextEl(el);\n            return el;\n        }\n\n        /**\n         * Add a child `Component` inside of this `Button`.\n         *\n         * @param {string|Component} child\n         *        The name or instance of a child to add.\n         *\n         * @param {Object} [options={}]\n         *        The key/value store of options that will get passed to children of\n         *        the child.\n         *\n         * @return {Component}\n         *         The `Component` that gets added as a child. When using a string the\n         *         `Component` will get created by this process.\n         *\n         * @deprecated since version 5\n         */\n        addChild(child, options = {}) {\n            const className = this.constructor.name;\n            log$1.warn(`Adding an actionable (user controllable) child to a Button (${className}) is not supported; use a ClickableComponent instead.`);\n\n            // Avoid the error message generated by ClickableComponent's addChild method\n            return Component$1.prototype.addChild.call(this, child, options);\n        }\n\n        /**\n         * Enable the `Button` element so that it can be activated or clicked. Use this with\n         * {@link Button#disable}.\n         */\n        enable() {\n            super.enable();\n            this.el_.removeAttribute('disabled');\n        }\n\n        /**\n         * Disable the `Button` element so that it cannot be activated or clicked. Use this with\n         * {@link Button#enable}.\n         */\n        disable() {\n            super.disable();\n            this.el_.setAttribute('disabled', 'disabled');\n        }\n\n        /**\n         * This gets called when a `Button` has focus and `keydown` is triggered via a key\n         * press.\n         *\n         * @param {Event} event\n         *        The event that caused this function to get called.\n         *\n         * @listens keydown\n         */\n        handleKeyDown(event) {\n            // Ignore Space or Enter key operation, which is handled by the browser for\n            // a button - though not for its super class, ClickableComponent. Also,\n            // prevent the event from propagating through the DOM and triggering Player\n            // hotkeys. We do not preventDefault here because we _want_ the browser to\n            // handle it.\n            if (keycode.isEventKey(event, 'Space') || keycode.isEventKey(event, 'Enter')) {\n                event.stopPropagation();\n                return;\n            }\n\n            // Pass keypress handling up for unsupported keys\n            super.handleKeyDown(event);\n        }\n    }\n    Component$1.registerComponent('Button', Button);\n\n    /**\n     * @file big-play-button.js\n     */\n\n    /**\n     * The initial play button that shows before the video has played. The hiding of the\n     * `BigPlayButton` get done via CSS and `Player` states.\n     *\n     * @extends Button\n     */\n    class BigPlayButton extends Button {\n        constructor(player, options) {\n            super(player, options);\n            this.mouseused_ = false;\n            this.on('mousedown', e => this.handleMouseDown(e));\n        }\n\n        /**\n         * Builds the default DOM `className`.\n         *\n         * @return {string}\n         *         The DOM `className` for this object. Always returns 'vjs-big-play-button'.\n         */\n        buildCSSClass() {\n            return 'vjs-big-play-button';\n        }\n\n        /**\n         * This gets called when a `BigPlayButton` \"clicked\". See {@link ClickableComponent}\n         * for more detailed information on what a click can be.\n         *\n         * @param {KeyboardEvent} event\n         *        The `keydown`, `tap`, or `click` event that caused this function to be\n         *        called.\n         *\n         * @listens tap\n         * @listens click\n         */\n        handleClick(event) {\n            const playPromise = this.player_.play();\n\n            // exit early if clicked via the mouse\n            if (this.mouseused_ && event.clientX && event.clientY) {\n                silencePromise(playPromise);\n                if (this.player_.tech(true)) {\n                    this.player_.tech(true).focus();\n                }\n                return;\n            }\n            const cb = this.player_.getChild('controlBar');\n            const playToggle = cb && cb.getChild('playToggle');\n            if (!playToggle) {\n                this.player_.tech(true).focus();\n                return;\n            }\n            const playFocus = () => playToggle.focus();\n            if (isPromise(playPromise)) {\n                playPromise.then(playFocus, () => {});\n            } else {\n                this.setTimeout(playFocus, 1);\n            }\n        }\n        handleKeyDown(event) {\n            this.mouseused_ = false;\n            super.handleKeyDown(event);\n        }\n        handleMouseDown(event) {\n            this.mouseused_ = true;\n        }\n    }\n\n    /**\n     * The text that should display over the `BigPlayButton`s controls. Added to for localization.\n     *\n     * @type {string}\n     * @protected\n     */\n    BigPlayButton.prototype.controlText_ = 'Play Video';\n    Component$1.registerComponent('BigPlayButton', BigPlayButton);\n\n    /**\n     * @file close-button.js\n     */\n\n    /**\n     * The `CloseButton` is a `{@link Button}` that fires a `close` event when\n     * it gets clicked.\n     *\n     * @extends Button\n     */\n    class CloseButton extends Button {\n        /**\n         * Creates an instance of the this class.\n         *\n         * @param  { import('./player').default } player\n         *         The `Player` that this class should be attached to.\n         *\n         * @param  {Object} [options]\n         *         The key/value store of player options.\n         */\n        constructor(player, options) {\n            super(player, options);\n            this.controlText(options && options.controlText || this.localize('Close'));\n        }\n\n        /**\n         * Builds the default DOM `className`.\n         *\n         * @return {string}\n         *         The DOM `className` for this object.\n         */\n        buildCSSClass() {\n            return `vjs-close-button ${super.buildCSSClass()}`;\n        }\n\n        /**\n         * This gets called when a `CloseButton` gets clicked. See\n         * {@link ClickableComponent#handleClick} for more information on when\n         * this will be triggered\n         *\n         * @param {Event} event\n         *        The `keydown`, `tap`, or `click` event that caused this function to be\n         *        called.\n         *\n         * @listens tap\n         * @listens click\n         * @fires CloseButton#close\n         */\n        handleClick(event) {\n            /**\n             * Triggered when the a `CloseButton` is clicked.\n             *\n             * @event CloseButton#close\n             * @type {Event}\n             *\n             * @property {boolean} [bubbles=false]\n             *           set to false so that the close event does not\n             *           bubble up to parents if there is no listener\n             */\n            this.trigger({\n                type: 'close',\n                bubbles: false\n            });\n        }\n        /**\n         * Event handler that is called when a `CloseButton` receives a\n         * `keydown` event.\n         *\n         * By default, if the key is Esc, it will trigger a `click` event.\n         *\n         * @param {Event} event\n         *        The `keydown` event that caused this function to be called.\n         *\n         * @listens keydown\n         */\n        handleKeyDown(event) {\n            // Esc button will trigger `click` event\n            if (keycode.isEventKey(event, 'Esc')) {\n                event.preventDefault();\n                event.stopPropagation();\n                this.trigger('click');\n            } else {\n                // Pass keypress handling up for unsupported keys\n                super.handleKeyDown(event);\n            }\n        }\n    }\n    Component$1.registerComponent('CloseButton', CloseButton);\n\n    /**\n     * @file play-toggle.js\n     */\n\n    /**\n     * Button to toggle between play and pause.\n     *\n     * @extends Button\n     */\n    class PlayToggle extends Button {\n        /**\n         * Creates an instance of this class.\n         *\n         * @param { import('./player').default } player\n         *        The `Player` that this class should be attached to.\n         *\n         * @param {Object} [options={}]\n         *        The key/value store of player options.\n         */\n        constructor(player, options = {}) {\n            super(player, options);\n\n            // show or hide replay icon\n            options.replay = options.replay === undefined || options.replay;\n            this.on(player, 'play', e => this.handlePlay(e));\n            this.on(player, 'pause', e => this.handlePause(e));\n            if (options.replay) {\n                this.on(player, 'ended', e => this.handleEnded(e));\n            }\n        }\n\n        /**\n         * Builds the default DOM `className`.\n         *\n         * @return {string}\n         *         The DOM `className` for this object.\n         */\n        buildCSSClass() {\n            return `vjs-play-control ${super.buildCSSClass()}`;\n        }\n\n        /**\n         * This gets called when an `PlayToggle` is \"clicked\". See\n         * {@link ClickableComponent} for more detailed information on what a click can be.\n         *\n         * @param {Event} [event]\n         *        The `keydown`, `tap`, or `click` event that caused this function to be\n         *        called.\n         *\n         * @listens tap\n         * @listens click\n         */\n        handleClick(event) {\n            if (this.player_.paused()) {\n                silencePromise(this.player_.play());\n            } else {\n                this.player_.pause();\n            }\n        }\n\n        /**\n         * This gets called once after the video has ended and the user seeks so that\n         * we can change the replay button back to a play button.\n         *\n         * @param {Event} [event]\n         *        The event that caused this function to run.\n         *\n         * @listens Player#seeked\n         */\n        handleSeeked(event) {\n            this.removeClass('vjs-ended');\n            if (this.player_.paused()) {\n                this.handlePause(event);\n            } else {\n                this.handlePlay(event);\n            }\n        }\n\n        /**\n         * Add the vjs-playing class to the element so it can change appearance.\n         *\n         * @param {Event} [event]\n         *        The event that caused this function to run.\n         *\n         * @listens Player#play\n         */\n        handlePlay(event) {\n            this.removeClass('vjs-ended', 'vjs-paused');\n            this.addClass('vjs-playing');\n            // change the button text to \"Pause\"\n            this.controlText('Pause');\n        }\n\n        /**\n         * Add the vjs-paused class to the element so it can change appearance.\n         *\n         * @param {Event} [event]\n         *        The event that caused this function to run.\n         *\n         * @listens Player#pause\n         */\n        handlePause(event) {\n            this.removeClass('vjs-playing');\n            this.addClass('vjs-paused');\n            // change the button text to \"Play\"\n            this.controlText('Play');\n        }\n\n        /**\n         * Add the vjs-ended class to the element so it can change appearance\n         *\n         * @param {Event} [event]\n         *        The event that caused this function to run.\n         *\n         * @listens Player#ended\n         */\n        handleEnded(event) {\n            this.removeClass('vjs-playing');\n            this.addClass('vjs-ended');\n            // change the button text to \"Replay\"\n            this.controlText('Replay');\n\n            // on the next seek remove the replay button\n            this.one(this.player_, 'seeked', e => this.handleSeeked(e));\n        }\n    }\n\n    /**\n     * The text that should display over the `PlayToggle`s controls. Added for localization.\n     *\n     * @type {string}\n     * @protected\n     */\n    PlayToggle.prototype.controlText_ = 'Play';\n    Component$1.registerComponent('PlayToggle', PlayToggle);\n\n    /**\n     * @file time-display.js\n     */\n\n    /**\n     * Displays time information about the video\n     *\n     * @extends Component\n     */\n    class TimeDisplay extends Component$1 {\n        /**\n         * Creates an instance of this class.\n         *\n         * @param { import('../../player').default } player\n         *        The `Player` that this class should be attached to.\n         *\n         * @param {Object} [options]\n         *        The key/value store of player options.\n         */\n        constructor(player, options) {\n            super(player, options);\n            this.on(player, ['timeupdate', 'ended'], e => this.updateContent(e));\n            this.updateTextNode_();\n        }\n\n        /**\n         * Create the `Component`'s DOM element\n         *\n         * @return {Element}\n         *         The element that was created.\n         */\n        createEl() {\n            const className = this.buildCSSClass();\n            const el = super.createEl('div', {\n                className: `${className} vjs-time-control vjs-control`\n            });\n            const span = createEl('span', {\n                className: 'vjs-control-text',\n                textContent: `${this.localize(this.labelText_)}\\u00a0`\n            }, {\n                role: 'presentation'\n            });\n            el.appendChild(span);\n            this.contentEl_ = createEl('span', {\n                className: `${className}-display`\n            }, {\n                // span elements have no implicit role, but some screen readers (notably VoiceOver)\n                // treat them as a break between items in the DOM when using arrow keys\n                // (or left-to-right swipes on iOS) to read contents of a page. Using\n                // role='presentation' causes VoiceOver to NOT treat this span as a break.\n                role: 'presentation'\n            });\n            el.appendChild(this.contentEl_);\n            return el;\n        }\n        dispose() {\n            this.contentEl_ = null;\n            this.textNode_ = null;\n            super.dispose();\n        }\n\n        /**\n         * Updates the time display text node with a new time\n         *\n         * @param {number} [time=0] the time to update to\n         *\n         * @private\n         */\n        updateTextNode_(time = 0) {\n            time = formatTime(time);\n            if (this.formattedTime_ === time) {\n                return;\n            }\n            this.formattedTime_ = time;\n            this.requestNamedAnimationFrame('TimeDisplay#updateTextNode_', () => {\n                if (!this.contentEl_) {\n                    return;\n                }\n                let oldNode = this.textNode_;\n                if (oldNode && this.contentEl_.firstChild !== oldNode) {\n                    oldNode = null;\n                    log$1.warn('TimeDisplay#updateTextnode_: Prevented replacement of text node element since it was no longer a child of this node. Appending a new node instead.');\n                }\n                this.textNode_ = document.createTextNode(this.formattedTime_);\n                if (!this.textNode_) {\n                    return;\n                }\n                if (oldNode) {\n                    this.contentEl_.replaceChild(this.textNode_, oldNode);\n                } else {\n                    this.contentEl_.appendChild(this.textNode_);\n                }\n            });\n        }\n\n        /**\n         * To be filled out in the child class, should update the displayed time\n         * in accordance with the fact that the current time has changed.\n         *\n         * @param {Event} [event]\n         *        The `timeupdate`  event that caused this to run.\n         *\n         * @listens Player#timeupdate\n         */\n        updateContent(event) {}\n    }\n\n    /**\n     * The text that is added to the `TimeDisplay` for screen reader users.\n     *\n     * @type {string}\n     * @private\n     */\n    TimeDisplay.prototype.labelText_ = 'Time';\n\n    /**\n     * The text that should display over the `TimeDisplay`s controls. Added to for localization.\n     *\n     * @type {string}\n     * @protected\n     *\n     * @deprecated in v7; controlText_ is not used in non-active display Components\n     */\n    TimeDisplay.prototype.controlText_ = 'Time';\n    Component$1.registerComponent('TimeDisplay', TimeDisplay);\n\n    /**\n     * @file current-time-display.js\n     */\n\n    /**\n     * Displays the current time\n     *\n     * @extends Component\n     */\n    class CurrentTimeDisplay extends TimeDisplay {\n        /**\n         * Builds the default DOM `className`.\n         *\n         * @return {string}\n         *         The DOM `className` for this object.\n         */\n        buildCSSClass() {\n            return 'vjs-current-time';\n        }\n\n        /**\n         * Update current time display\n         *\n         * @param {Event} [event]\n         *        The `timeupdate` event that caused this function to run.\n         *\n         * @listens Player#timeupdate\n         */\n        updateContent(event) {\n            // Allows for smooth scrubbing, when player can't keep up.\n            let time;\n            if (this.player_.ended()) {\n                time = this.player_.duration();\n            } else {\n                time = this.player_.scrubbing() ? this.player_.getCache().currentTime : this.player_.currentTime();\n            }\n            this.updateTextNode_(time);\n        }\n    }\n\n    /**\n     * The text that is added to the `CurrentTimeDisplay` for screen reader users.\n     *\n     * @type {string}\n     * @private\n     */\n    CurrentTimeDisplay.prototype.labelText_ = 'Current Time';\n\n    /**\n     * The text that should display over the `CurrentTimeDisplay`s controls. Added to for localization.\n     *\n     * @type {string}\n     * @protected\n     *\n     * @deprecated in v7; controlText_ is not used in non-active display Components\n     */\n    CurrentTimeDisplay.prototype.controlText_ = 'Current Time';\n    Component$1.registerComponent('CurrentTimeDisplay', CurrentTimeDisplay);\n\n    /**\n     * @file duration-display.js\n     */\n\n    /**\n     * Displays the duration\n     *\n     * @extends Component\n     */\n    class DurationDisplay extends TimeDisplay {\n        /**\n         * Creates an instance of this class.\n         *\n         * @param { import('../../player').default } player\n         *        The `Player` that this class should be attached to.\n         *\n         * @param {Object} [options]\n         *        The key/value store of player options.\n         */\n        constructor(player, options) {\n            super(player, options);\n            const updateContent = e => this.updateContent(e);\n\n            // we do not want to/need to throttle duration changes,\n            // as they should always display the changed duration as\n            // it has changed\n            this.on(player, 'durationchange', updateContent);\n\n            // Listen to loadstart because the player duration is reset when a new media element is loaded,\n            // but the durationchange on the user agent will not fire.\n            // @see [Spec]{@link https://www.w3.org/TR/2011/WD-html5-20110113/video.html#media-element-load-algorithm}\n            this.on(player, 'loadstart', updateContent);\n\n            // Also listen for timeupdate (in the parent) and loadedmetadata because removing those\n            // listeners could have broken dependent applications/libraries. These\n            // can likely be removed for 7.0.\n            this.on(player, 'loadedmetadata', updateContent);\n        }\n\n        /**\n         * Builds the default DOM `className`.\n         *\n         * @return {string}\n         *         The DOM `className` for this object.\n         */\n        buildCSSClass() {\n            return 'vjs-duration';\n        }\n\n        /**\n         * Update duration time display.\n         *\n         * @param {Event} [event]\n         *        The `durationchange`, `timeupdate`, or `loadedmetadata` event that caused\n         *        this function to be called.\n         *\n         * @listens Player#durationchange\n         * @listens Player#timeupdate\n         * @listens Player#loadedmetadata\n         */\n        updateContent(event) {\n            const duration = this.player_.duration();\n            this.updateTextNode_(duration);\n        }\n    }\n\n    /**\n     * The text that is added to the `DurationDisplay` for screen reader users.\n     *\n     * @type {string}\n     * @private\n     */\n    DurationDisplay.prototype.labelText_ = 'Duration';\n\n    /**\n     * The text that should display over the `DurationDisplay`s controls. Added to for localization.\n     *\n     * @type {string}\n     * @protected\n     *\n     * @deprecated in v7; controlText_ is not used in non-active display Components\n     */\n    DurationDisplay.prototype.controlText_ = 'Duration';\n    Component$1.registerComponent('DurationDisplay', DurationDisplay);\n\n    /**\n     * @file time-divider.js\n     */\n\n    /**\n     * The separator between the current time and duration.\n     * Can be hidden if it's not needed in the design.\n     *\n     * @extends Component\n     */\n    class TimeDivider extends Component$1 {\n        /**\n         * Create the component's DOM element\n         *\n         * @return {Element}\n         *         The element that was created.\n         */\n        createEl() {\n            const el = super.createEl('div', {\n                className: 'vjs-time-control vjs-time-divider'\n            }, {\n                // this element and its contents can be hidden from assistive techs since\n                // it is made extraneous by the announcement of the control text\n                // for the current time and duration displays\n                'aria-hidden': true\n            });\n            const div = super.createEl('div');\n            const span = super.createEl('span', {\n                textContent: '/'\n            });\n            div.appendChild(span);\n            el.appendChild(div);\n            return el;\n        }\n    }\n    Component$1.registerComponent('TimeDivider', TimeDivider);\n\n    /**\n     * @file remaining-time-display.js\n     */\n\n    /**\n     * Displays the time left in the video\n     *\n     * @extends Component\n     */\n    class RemainingTimeDisplay extends TimeDisplay {\n        /**\n         * Creates an instance of this class.\n         *\n         * @param { import('../../player').default } player\n         *        The `Player` that this class should be attached to.\n         *\n         * @param {Object} [options]\n         *        The key/value store of player options.\n         */\n        constructor(player, options) {\n            super(player, options);\n            this.on(player, 'durationchange', e => this.updateContent(e));\n        }\n\n        /**\n         * Builds the default DOM `className`.\n         *\n         * @return {string}\n         *         The DOM `className` for this object.\n         */\n        buildCSSClass() {\n            return 'vjs-remaining-time';\n        }\n\n        /**\n         * Create the `Component`'s DOM element with the \"minus\" character prepend to the time\n         *\n         * @return {Element}\n         *         The element that was created.\n         */\n        createEl() {\n            const el = super.createEl();\n            if (this.options_.displayNegative !== false) {\n                el.insertBefore(createEl('span', {}, {\n                    'aria-hidden': true\n                }, '-'), this.contentEl_);\n            }\n            return el;\n        }\n\n        /**\n         * Update remaining time display.\n         *\n         * @param {Event} [event]\n         *        The `timeupdate` or `durationchange` event that caused this to run.\n         *\n         * @listens Player#timeupdate\n         * @listens Player#durationchange\n         */\n        updateContent(event) {\n            if (typeof this.player_.duration() !== 'number') {\n                return;\n            }\n            let time;\n\n            // @deprecated We should only use remainingTimeDisplay\n            // as of video.js 7\n            if (this.player_.ended()) {\n                time = 0;\n            } else if (this.player_.remainingTimeDisplay) {\n                time = this.player_.remainingTimeDisplay();\n            } else {\n                time = this.player_.remainingTime();\n            }\n            this.updateTextNode_(time);\n        }\n    }\n\n    /**\n     * The text that is added to the `RemainingTimeDisplay` for screen reader users.\n     *\n     * @type {string}\n     * @private\n     */\n    RemainingTimeDisplay.prototype.labelText_ = 'Remaining Time';\n\n    /**\n     * The text that should display over the `RemainingTimeDisplay`s controls. Added to for localization.\n     *\n     * @type {string}\n     * @protected\n     *\n     * @deprecated in v7; controlText_ is not used in non-active display Components\n     */\n    RemainingTimeDisplay.prototype.controlText_ = 'Remaining Time';\n    Component$1.registerComponent('RemainingTimeDisplay', RemainingTimeDisplay);\n\n    /**\n     * @file live-display.js\n     */\n\n    // TODO - Future make it click to snap to live\n\n    /**\n     * Displays the live indicator when duration is Infinity.\n     *\n     * @extends Component\n     */\n    class LiveDisplay extends Component$1 {\n        /**\n         * Creates an instance of this class.\n         *\n         * @param { import('./player').default } player\n         *        The `Player` that this class should be attached to.\n         *\n         * @param {Object} [options]\n         *        The key/value store of player options.\n         */\n        constructor(player, options) {\n            super(player, options);\n            this.updateShowing();\n            this.on(this.player(), 'durationchange', e => this.updateShowing(e));\n        }\n\n        /**\n         * Create the `Component`'s DOM element\n         *\n         * @return {Element}\n         *         The element that was created.\n         */\n        createEl() {\n            const el = super.createEl('div', {\n                className: 'vjs-live-control vjs-control'\n            });\n            this.contentEl_ = createEl('div', {\n                className: 'vjs-live-display'\n            }, {\n                'aria-live': 'off'\n            });\n            this.contentEl_.appendChild(createEl('span', {\n                className: 'vjs-control-text',\n                textContent: `${this.localize('Stream Type')}\\u00a0`\n            }));\n            this.contentEl_.appendChild(document.createTextNode(this.localize('LIVE')));\n            el.appendChild(this.contentEl_);\n            return el;\n        }\n        dispose() {\n            this.contentEl_ = null;\n            super.dispose();\n        }\n\n        /**\n         * Check the duration to see if the LiveDisplay should be showing or not. Then show/hide\n         * it accordingly\n         *\n         * @param {Event} [event]\n         *        The {@link Player#durationchange} event that caused this function to run.\n         *\n         * @listens Player#durationchange\n         */\n        updateShowing(event) {\n            if (this.player().duration() === Infinity) {\n                this.show();\n            } else {\n                this.hide();\n            }\n        }\n    }\n    Component$1.registerComponent('LiveDisplay', LiveDisplay);\n\n    /**\n     * @file seek-to-live.js\n     */\n\n    /**\n     * Displays the live indicator when duration is Infinity.\n     *\n     * @extends Component\n     */\n    class SeekToLive extends Button {\n        /**\n         * Creates an instance of this class.\n         *\n         * @param { import('./player').default } player\n         *        The `Player` that this class should be attached to.\n         *\n         * @param {Object} [options]\n         *        The key/value store of player options.\n         */\n        constructor(player, options) {\n            super(player, options);\n            this.updateLiveEdgeStatus();\n            if (this.player_.liveTracker) {\n                this.updateLiveEdgeStatusHandler_ = e => this.updateLiveEdgeStatus(e);\n                this.on(this.player_.liveTracker, 'liveedgechange', this.updateLiveEdgeStatusHandler_);\n            }\n        }\n\n        /**\n         * Create the `Component`'s DOM element\n         *\n         * @return {Element}\n         *         The element that was created.\n         */\n        createEl() {\n            const el = super.createEl('button', {\n                className: 'vjs-seek-to-live-control vjs-control'\n            });\n            this.textEl_ = createEl('span', {\n                className: 'vjs-seek-to-live-text',\n                textContent: this.localize('LIVE')\n            }, {\n                'aria-hidden': 'true'\n            });\n            el.appendChild(this.textEl_);\n            return el;\n        }\n\n        /**\n         * Update the state of this button if we are at the live edge\n         * or not\n         */\n        updateLiveEdgeStatus() {\n            // default to live edge\n            if (!this.player_.liveTracker || this.player_.liveTracker.atLiveEdge()) {\n                this.setAttribute('aria-disabled', true);\n                this.addClass('vjs-at-live-edge');\n                this.controlText('Seek to live, currently playing live');\n            } else {\n                this.setAttribute('aria-disabled', false);\n                this.removeClass('vjs-at-live-edge');\n                this.controlText('Seek to live, currently behind live');\n            }\n        }\n\n        /**\n         * On click bring us as near to the live point as possible.\n         * This requires that we wait for the next `live-seekable-change`\n         * event which will happen every segment length seconds.\n         */\n        handleClick() {\n            this.player_.liveTracker.seekToLiveEdge();\n        }\n\n        /**\n         * Dispose of the element and stop tracking\n         */\n        dispose() {\n            if (this.player_.liveTracker) {\n                this.off(this.player_.liveTracker, 'liveedgechange', this.updateLiveEdgeStatusHandler_);\n            }\n            this.textEl_ = null;\n            super.dispose();\n        }\n    }\n    /**\n     * The text that should display over the `SeekToLive`s control. Added for localization.\n     *\n     * @type {string}\n     * @protected\n     */\n    SeekToLive.prototype.controlText_ = 'Seek to live, currently playing live';\n    Component$1.registerComponent('SeekToLive', SeekToLive);\n\n    /**\n     * @file num.js\n     * @module num\n     */\n\n    /**\n     * Keep a number between a min and a max value\n     *\n     * @param {number} number\n     *        The number to clamp\n     *\n     * @param {number} min\n     *        The minimum value\n     * @param {number} max\n     *        The maximum value\n     *\n     * @return {number}\n     *         the clamped number\n     */\n    function clamp(number, min, max) {\n        number = Number(number);\n        return Math.min(max, Math.max(min, isNaN(number) ? min : number));\n    }\n\n    var Num = /*#__PURE__*/Object.freeze({\n        __proto__: null,\n        clamp: clamp\n    });\n\n    /**\n     * @file slider.js\n     */\n\n    /**\n     * The base functionality for a slider. Can be vertical or horizontal.\n     * For instance the volume bar or the seek bar on a video is a slider.\n     *\n     * @extends Component\n     */\n    class Slider extends Component$1 {\n        /**\n         * Create an instance of this class\n         *\n         * @param { import('../player').default } player\n         *        The `Player` that this class should be attached to.\n         *\n         * @param {Object} [options]\n         *        The key/value store of player options.\n         */\n        constructor(player, options) {\n            super(player, options);\n            this.handleMouseDown_ = e => this.handleMouseDown(e);\n            this.handleMouseUp_ = e => this.handleMouseUp(e);\n            this.handleKeyDown_ = e => this.handleKeyDown(e);\n            this.handleClick_ = e => this.handleClick(e);\n            this.handleMouseMove_ = e => this.handleMouseMove(e);\n            this.update_ = e => this.update(e);\n\n            // Set property names to bar to match with the child Slider class is looking for\n            this.bar = this.getChild(this.options_.barName);\n\n            // Set a horizontal or vertical class on the slider depending on the slider type\n            this.vertical(!!this.options_.vertical);\n            this.enable();\n        }\n\n        /**\n         * Are controls are currently enabled for this slider or not.\n         *\n         * @return {boolean}\n         *         true if controls are enabled, false otherwise\n         */\n        enabled() {\n            return this.enabled_;\n        }\n\n        /**\n         * Enable controls for this slider if they are disabled\n         */\n        enable() {\n            if (this.enabled()) {\n                return;\n            }\n            this.on('mousedown', this.handleMouseDown_);\n            this.on('touchstart', this.handleMouseDown_);\n            this.on('keydown', this.handleKeyDown_);\n            this.on('click', this.handleClick_);\n\n            // TODO: deprecated, controlsvisible does not seem to be fired\n            this.on(this.player_, 'controlsvisible', this.update);\n            if (this.playerEvent) {\n                this.on(this.player_, this.playerEvent, this.update);\n            }\n            this.removeClass('disabled');\n            this.setAttribute('tabindex', 0);\n            this.enabled_ = true;\n        }\n\n        /**\n         * Disable controls for this slider if they are enabled\n         */\n        disable() {\n            if (!this.enabled()) {\n                return;\n            }\n            const doc = this.bar.el_.ownerDocument;\n            this.off('mousedown', this.handleMouseDown_);\n            this.off('touchstart', this.handleMouseDown_);\n            this.off('keydown', this.handleKeyDown_);\n            this.off('click', this.handleClick_);\n            this.off(this.player_, 'controlsvisible', this.update_);\n            this.off(doc, 'mousemove', this.handleMouseMove_);\n            this.off(doc, 'mouseup', this.handleMouseUp_);\n            this.off(doc, 'touchmove', this.handleMouseMove_);\n            this.off(doc, 'touchend', this.handleMouseUp_);\n            this.removeAttribute('tabindex');\n            this.addClass('disabled');\n            if (this.playerEvent) {\n                this.off(this.player_, this.playerEvent, this.update);\n            }\n            this.enabled_ = false;\n        }\n\n        /**\n         * Create the `Slider`s DOM element.\n         *\n         * @param {string} type\n         *        Type of element to create.\n         *\n         * @param {Object} [props={}]\n         *        List of properties in Object form.\n         *\n         * @param {Object} [attributes={}]\n         *        list of attributes in Object form.\n         *\n         * @return {Element}\n         *         The element that gets created.\n         */\n        createEl(type, props = {}, attributes = {}) {\n            // Add the slider element class to all sub classes\n            props.className = props.className + ' vjs-slider';\n            props = Object.assign({\n                tabIndex: 0\n            }, props);\n            attributes = Object.assign({\n                'role': 'slider',\n                'aria-valuenow': 0,\n                'aria-valuemin': 0,\n                'aria-valuemax': 100\n            }, attributes);\n            return super.createEl(type, props, attributes);\n        }\n\n        /**\n         * Handle `mousedown` or `touchstart` events on the `Slider`.\n         *\n         * @param {MouseEvent} event\n         *        `mousedown` or `touchstart` event that triggered this function\n         *\n         * @listens mousedown\n         * @listens touchstart\n         * @fires Slider#slideractive\n         */\n        handleMouseDown(event) {\n            const doc = this.bar.el_.ownerDocument;\n            if (event.type === 'mousedown') {\n                event.preventDefault();\n            }\n            // Do not call preventDefault() on touchstart in Chrome\n            // to avoid console warnings. Use a 'touch-action: none' style\n            // instead to prevent unintended scrolling.\n            // https://developers.google.com/web/updates/2017/01/scrolling-intervention\n            if (event.type === 'touchstart' && !IS_CHROME) {\n                event.preventDefault();\n            }\n            blockTextSelection();\n            this.addClass('vjs-sliding');\n            /**\n             * Triggered when the slider is in an active state\n             *\n             * @event Slider#slideractive\n             * @type {MouseEvent}\n             */\n            this.trigger('slideractive');\n            this.on(doc, 'mousemove', this.handleMouseMove_);\n            this.on(doc, 'mouseup', this.handleMouseUp_);\n            this.on(doc, 'touchmove', this.handleMouseMove_);\n            this.on(doc, 'touchend', this.handleMouseUp_);\n            this.handleMouseMove(event, true);\n        }\n\n        /**\n         * Handle the `mousemove`, `touchmove`, and `mousedown` events on this `Slider`.\n         * The `mousemove` and `touchmove` events will only only trigger this function during\n         * `mousedown` and `touchstart`. This is due to {@link Slider#handleMouseDown} and\n         * {@link Slider#handleMouseUp}.\n         *\n         * @param {MouseEvent} event\n         *        `mousedown`, `mousemove`, `touchstart`, or `touchmove` event that triggered\n         *        this function\n         * @param {boolean} mouseDown this is a flag that should be set to true if `handleMouseMove` is called directly. It allows us to skip things that should not happen if coming from mouse down but should happen on regular mouse move handler. Defaults to false.\n         *\n         * @listens mousemove\n         * @listens touchmove\n         */\n        handleMouseMove(event) {}\n\n        /**\n         * Handle `mouseup` or `touchend` events on the `Slider`.\n         *\n         * @param {MouseEvent} event\n         *        `mouseup` or `touchend` event that triggered this function.\n         *\n         * @listens touchend\n         * @listens mouseup\n         * @fires Slider#sliderinactive\n         */\n        handleMouseUp(event) {\n            const doc = this.bar.el_.ownerDocument;\n            unblockTextSelection();\n            this.removeClass('vjs-sliding');\n            /**\n             * Triggered when the slider is no longer in an active state.\n             *\n             * @event Slider#sliderinactive\n             * @type {Event}\n             */\n            this.trigger('sliderinactive');\n            this.off(doc, 'mousemove', this.handleMouseMove_);\n            this.off(doc, 'mouseup', this.handleMouseUp_);\n            this.off(doc, 'touchmove', this.handleMouseMove_);\n            this.off(doc, 'touchend', this.handleMouseUp_);\n            this.update();\n        }\n\n        /**\n         * Update the progress bar of the `Slider`.\n         *\n         * @return {number}\n         *          The percentage of progress the progress bar represents as a\n         *          number from 0 to 1.\n         */\n        update() {\n            // In VolumeBar init we have a setTimeout for update that pops and update\n            // to the end of the execution stack. The player is destroyed before then\n            // update will cause an error\n            // If there's no bar...\n            if (!this.el_ || !this.bar) {\n                return;\n            }\n\n            // clamp progress between 0 and 1\n            // and only round to four decimal places, as we round to two below\n            const progress = this.getProgress();\n            if (progress === this.progress_) {\n                return progress;\n            }\n            this.progress_ = progress;\n            this.requestNamedAnimationFrame('Slider#update', () => {\n                // Set the new bar width or height\n                const sizeKey = this.vertical() ? 'height' : 'width';\n\n                // Convert to a percentage for css value\n                this.bar.el().style[sizeKey] = (progress * 100).toFixed(2) + '%';\n            });\n            return progress;\n        }\n\n        /**\n         * Get the percentage of the bar that should be filled\n         * but clamped and rounded.\n         *\n         * @return {number}\n         *         percentage filled that the slider is\n         */\n        getProgress() {\n            return Number(clamp(this.getPercent(), 0, 1).toFixed(4));\n        }\n\n        /**\n         * Calculate distance for slider\n         *\n         * @param {Event} event\n         *        The event that caused this function to run.\n         *\n         * @return {number}\n         *         The current position of the Slider.\n         *         - position.x for vertical `Slider`s\n         *         - position.y for horizontal `Slider`s\n         */\n        calculateDistance(event) {\n            const position = getPointerPosition(this.el_, event);\n            if (this.vertical()) {\n                return position.y;\n            }\n            return position.x;\n        }\n\n        /**\n         * Handle a `keydown` event on the `Slider`. Watches for left, right, up, and down\n         * arrow keys. This function will only be called when the slider has focus. See\n         * {@link Slider#handleFocus} and {@link Slider#handleBlur}.\n         *\n         * @param {KeyboardEvent} event\n         *        the `keydown` event that caused this function to run.\n         *\n         * @listens keydown\n         */\n        handleKeyDown(event) {\n            // Left and Down Arrows\n            if (keycode.isEventKey(event, 'Left') || keycode.isEventKey(event, 'Down')) {\n                event.preventDefault();\n                event.stopPropagation();\n                this.stepBack();\n\n                // Up and Right Arrows\n            } else if (keycode.isEventKey(event, 'Right') || keycode.isEventKey(event, 'Up')) {\n                event.preventDefault();\n                event.stopPropagation();\n                this.stepForward();\n            } else {\n                // Pass keydown handling up for unsupported keys\n                super.handleKeyDown(event);\n            }\n        }\n\n        /**\n         * Listener for click events on slider, used to prevent clicks\n         *   from bubbling up to parent elements like button menus.\n         *\n         * @param {Object} event\n         *        Event that caused this object to run\n         */\n        handleClick(event) {\n            event.stopPropagation();\n            event.preventDefault();\n        }\n\n        /**\n         * Get/set if slider is horizontal for vertical\n         *\n         * @param {boolean} [bool]\n         *        - true if slider is vertical,\n         *        - false is horizontal\n         *\n         * @return {boolean}\n         *         - true if slider is vertical, and getting\n         *         - false if the slider is horizontal, and getting\n         */\n        vertical(bool) {\n            if (bool === undefined) {\n                return this.vertical_ || false;\n            }\n            this.vertical_ = !!bool;\n            if (this.vertical_) {\n                this.addClass('vjs-slider-vertical');\n            } else {\n                this.addClass('vjs-slider-horizontal');\n            }\n        }\n    }\n    Component$1.registerComponent('Slider', Slider);\n\n    /**\n     * @file load-progress-bar.js\n     */\n\n        // get the percent width of a time compared to the total end\n    const percentify = (time, end) => clamp(time / end * 100, 0, 100).toFixed(2) + '%';\n\n    /**\n     * Shows loading progress\n     *\n     * @extends Component\n     */\n    class LoadProgressBar extends Component$1 {\n        /**\n         * Creates an instance of this class.\n         *\n         * @param { import('../../player').default } player\n         *        The `Player` that this class should be attached to.\n         *\n         * @param {Object} [options]\n         *        The key/value store of player options.\n         */\n        constructor(player, options) {\n            super(player, options);\n            this.partEls_ = [];\n            this.on(player, 'progress', e => this.update(e));\n        }\n\n        /**\n         * Create the `Component`'s DOM element\n         *\n         * @return {Element}\n         *         The element that was created.\n         */\n        createEl() {\n            const el = super.createEl('div', {\n                className: 'vjs-load-progress'\n            });\n            const wrapper = createEl('span', {\n                className: 'vjs-control-text'\n            });\n            const loadedText = createEl('span', {\n                textContent: this.localize('Loaded')\n            });\n            const separator = document.createTextNode(': ');\n            this.percentageEl_ = createEl('span', {\n                className: 'vjs-control-text-loaded-percentage',\n                textContent: '0%'\n            });\n            el.appendChild(wrapper);\n            wrapper.appendChild(loadedText);\n            wrapper.appendChild(separator);\n            wrapper.appendChild(this.percentageEl_);\n            return el;\n        }\n        dispose() {\n            this.partEls_ = null;\n            this.percentageEl_ = null;\n            super.dispose();\n        }\n\n        /**\n         * Update progress bar\n         *\n         * @param {Event} [event]\n         *        The `progress` event that caused this function to run.\n         *\n         * @listens Player#progress\n         */\n        update(event) {\n            this.requestNamedAnimationFrame('LoadProgressBar#update', () => {\n                const liveTracker = this.player_.liveTracker;\n                const buffered = this.player_.buffered();\n                const duration = liveTracker && liveTracker.isLive() ? liveTracker.seekableEnd() : this.player_.duration();\n                const bufferedEnd = this.player_.bufferedEnd();\n                const children = this.partEls_;\n                const percent = percentify(bufferedEnd, duration);\n                if (this.percent_ !== percent) {\n                    // update the width of the progress bar\n                    this.el_.style.width = percent;\n                    // update the control-text\n                    textContent(this.percentageEl_, percent);\n                    this.percent_ = percent;\n                }\n\n                // add child elements to represent the individual buffered time ranges\n                for (let i = 0; i < buffered.length; i++) {\n                    const start = buffered.start(i);\n                    const end = buffered.end(i);\n                    let part = children[i];\n                    if (!part) {\n                        part = this.el_.appendChild(createEl());\n                        children[i] = part;\n                    }\n\n                    //  only update if changed\n                    if (part.dataset.start === start && part.dataset.end === end) {\n                        continue;\n                    }\n                    part.dataset.start = start;\n                    part.dataset.end = end;\n\n                    // set the percent based on the width of the progress bar (bufferedEnd)\n                    part.style.left = percentify(start, bufferedEnd);\n                    part.style.width = percentify(end - start, bufferedEnd);\n                }\n\n                // remove unused buffered range elements\n                for (let i = children.length; i > buffered.length; i--) {\n                    this.el_.removeChild(children[i - 1]);\n                }\n                children.length = buffered.length;\n            });\n        }\n    }\n    Component$1.registerComponent('LoadProgressBar', LoadProgressBar);\n\n    /**\n     * @file time-tooltip.js\n     */\n\n    /**\n     * Time tooltips display a time above the progress bar.\n     *\n     * @extends Component\n     */\n    class TimeTooltip extends Component$1 {\n        /**\n         * Creates an instance of this class.\n         *\n         * @param { import('../../player').default } player\n         *        The {@link Player} that this class should be attached to.\n         *\n         * @param {Object} [options]\n         *        The key/value store of player options.\n         */\n        constructor(player, options) {\n            super(player, options);\n            this.update = throttle(bind_(this, this.update), UPDATE_REFRESH_INTERVAL);\n        }\n\n        /**\n         * Create the time tooltip DOM element\n         *\n         * @return {Element}\n         *         The element that was created.\n         */\n        createEl() {\n            return super.createEl('div', {\n                className: 'vjs-time-tooltip'\n            }, {\n                'aria-hidden': 'true'\n            });\n        }\n\n        /**\n         * Updates the position of the time tooltip relative to the `SeekBar`.\n         *\n         * @param {Object} seekBarRect\n         *        The `ClientRect` for the {@link SeekBar} element.\n         *\n         * @param {number} seekBarPoint\n         *        A number from 0 to 1, representing a horizontal reference point\n         *        from the left edge of the {@link SeekBar}\n         */\n        update(seekBarRect, seekBarPoint, content) {\n            const tooltipRect = findPosition(this.el_);\n            const playerRect = getBoundingClientRect(this.player_.el());\n            const seekBarPointPx = seekBarRect.width * seekBarPoint;\n\n            // do nothing if either rect isn't available\n            // for example, if the player isn't in the DOM for testing\n            if (!playerRect || !tooltipRect) {\n                return;\n            }\n\n            // This is the space left of the `seekBarPoint` available within the bounds\n            // of the player. We calculate any gap between the left edge of the player\n            // and the left edge of the `SeekBar` and add the number of pixels in the\n            // `SeekBar` before hitting the `seekBarPoint`\n            const spaceLeftOfPoint = seekBarRect.left - playerRect.left + seekBarPointPx;\n\n            // This is the space right of the `seekBarPoint` available within the bounds\n            // of the player. We calculate the number of pixels from the `seekBarPoint`\n            // to the right edge of the `SeekBar` and add to that any gap between the\n            // right edge of the `SeekBar` and the player.\n            const spaceRightOfPoint = seekBarRect.width - seekBarPointPx + (playerRect.right - seekBarRect.right);\n\n            // This is the number of pixels by which the tooltip will need to be pulled\n            // further to the right to center it over the `seekBarPoint`.\n            let pullTooltipBy = tooltipRect.width / 2;\n\n            // Adjust the `pullTooltipBy` distance to the left or right depending on\n            // the results of the space calculations above.\n            if (spaceLeftOfPoint < pullTooltipBy) {\n                pullTooltipBy += pullTooltipBy - spaceLeftOfPoint;\n            } else if (spaceRightOfPoint < pullTooltipBy) {\n                pullTooltipBy = spaceRightOfPoint;\n            }\n\n            // Due to the imprecision of decimal/ratio based calculations and varying\n            // rounding behaviors, there are cases where the spacing adjustment is off\n            // by a pixel or two. This adds insurance to these calculations.\n            if (pullTooltipBy < 0) {\n                pullTooltipBy = 0;\n            } else if (pullTooltipBy > tooltipRect.width) {\n                pullTooltipBy = tooltipRect.width;\n            }\n\n            // prevent small width fluctuations within 0.4px from\n            // changing the value below.\n            // This really helps for live to prevent the play\n            // progress time tooltip from jittering\n            pullTooltipBy = Math.round(pullTooltipBy);\n            this.el_.style.right = `-${pullTooltipBy}px`;\n            this.write(content);\n        }\n\n        /**\n         * Write the time to the tooltip DOM element.\n         *\n         * @param {string} content\n         *        The formatted time for the tooltip.\n         */\n        write(content) {\n            textContent(this.el_, content);\n        }\n\n        /**\n         * Updates the position of the time tooltip relative to the `SeekBar`.\n         *\n         * @param {Object} seekBarRect\n         *        The `ClientRect` for the {@link SeekBar} element.\n         *\n         * @param {number} seekBarPoint\n         *        A number from 0 to 1, representing a horizontal reference point\n         *        from the left edge of the {@link SeekBar}\n         *\n         * @param {number} time\n         *        The time to update the tooltip to, not used during live playback\n         *\n         * @param {Function} cb\n         *        A function that will be called during the request animation frame\n         *        for tooltips that need to do additional animations from the default\n         */\n        updateTime(seekBarRect, seekBarPoint, time, cb) {\n            this.requestNamedAnimationFrame('TimeTooltip#updateTime', () => {\n                let content;\n                const duration = this.player_.duration();\n                if (this.player_.liveTracker && this.player_.liveTracker.isLive()) {\n                    const liveWindow = this.player_.liveTracker.liveWindow();\n                    const secondsBehind = liveWindow - seekBarPoint * liveWindow;\n                    content = (secondsBehind < 1 ? '' : '-') + formatTime(secondsBehind, liveWindow);\n                } else {\n                    content = formatTime(time, duration);\n                }\n                this.update(seekBarRect, seekBarPoint, content);\n                if (cb) {\n                    cb();\n                }\n            });\n        }\n    }\n    Component$1.registerComponent('TimeTooltip', TimeTooltip);\n\n    /**\n     * @file play-progress-bar.js\n     */\n\n    /**\n     * Used by {@link SeekBar} to display media playback progress as part of the\n     * {@link ProgressControl}.\n     *\n     * @extends Component\n     */\n    class PlayProgressBar extends Component$1 {\n        /**\n         * Creates an instance of this class.\n         *\n         * @param { import('../../player').default } player\n         *        The {@link Player} that this class should be attached to.\n         *\n         * @param {Object} [options]\n         *        The key/value store of player options.\n         */\n        constructor(player, options) {\n            super(player, options);\n            this.update = throttle(bind_(this, this.update), UPDATE_REFRESH_INTERVAL);\n        }\n\n        /**\n         * Create the the DOM element for this class.\n         *\n         * @return {Element}\n         *         The element that was created.\n         */\n        createEl() {\n            return super.createEl('div', {\n                className: 'vjs-play-progress vjs-slider-bar'\n            }, {\n                'aria-hidden': 'true'\n            });\n        }\n\n        /**\n         * Enqueues updates to its own DOM as well as the DOM of its\n         * {@link TimeTooltip} child.\n         *\n         * @param {Object} seekBarRect\n         *        The `ClientRect` for the {@link SeekBar} element.\n         *\n         * @param {number} seekBarPoint\n         *        A number from 0 to 1, representing a horizontal reference point\n         *        from the left edge of the {@link SeekBar}\n         */\n        update(seekBarRect, seekBarPoint) {\n            const timeTooltip = this.getChild('timeTooltip');\n            if (!timeTooltip) {\n                return;\n            }\n            const time = this.player_.scrubbing() ? this.player_.getCache().currentTime : this.player_.currentTime();\n            timeTooltip.updateTime(seekBarRect, seekBarPoint, time);\n        }\n    }\n\n    /**\n     * Default options for {@link PlayProgressBar}.\n     *\n     * @type {Object}\n     * @private\n     */\n    PlayProgressBar.prototype.options_ = {\n        children: []\n    };\n\n    // Time tooltips should not be added to a player on mobile devices\n    if (!IS_IOS && !IS_ANDROID) {\n        PlayProgressBar.prototype.options_.children.push('timeTooltip');\n    }\n    Component$1.registerComponent('PlayProgressBar', PlayProgressBar);\n\n    /**\n     * @file mouse-time-display.js\n     */\n\n    /**\n     * The {@link MouseTimeDisplay} component tracks mouse movement over the\n     * {@link ProgressControl}. It displays an indicator and a {@link TimeTooltip}\n     * indicating the time which is represented by a given point in the\n     * {@link ProgressControl}.\n     *\n     * @extends Component\n     */\n    class MouseTimeDisplay extends Component$1 {\n        /**\n         * Creates an instance of this class.\n         *\n         * @param { import('../../player').default } player\n         *        The {@link Player} that this class should be attached to.\n         *\n         * @param {Object} [options]\n         *        The key/value store of player options.\n         */\n        constructor(player, options) {\n            super(player, options);\n            this.update = throttle(bind_(this, this.update), UPDATE_REFRESH_INTERVAL);\n        }\n\n        /**\n         * Create the DOM element for this class.\n         *\n         * @return {Element}\n         *         The element that was created.\n         */\n        createEl() {\n            return super.createEl('div', {\n                className: 'vjs-mouse-display'\n            });\n        }\n\n        /**\n         * Enqueues updates to its own DOM as well as the DOM of its\n         * {@link TimeTooltip} child.\n         *\n         * @param {Object} seekBarRect\n         *        The `ClientRect` for the {@link SeekBar} element.\n         *\n         * @param {number} seekBarPoint\n         *        A number from 0 to 1, representing a horizontal reference point\n         *        from the left edge of the {@link SeekBar}\n         */\n        update(seekBarRect, seekBarPoint) {\n            const time = seekBarPoint * this.player_.duration();\n            this.getChild('timeTooltip').updateTime(seekBarRect, seekBarPoint, time, () => {\n                this.el_.style.left = `${seekBarRect.width * seekBarPoint}px`;\n            });\n        }\n    }\n\n    /**\n     * Default options for `MouseTimeDisplay`\n     *\n     * @type {Object}\n     * @private\n     */\n    MouseTimeDisplay.prototype.options_ = {\n        children: ['timeTooltip']\n    };\n    Component$1.registerComponent('MouseTimeDisplay', MouseTimeDisplay);\n\n    /**\n     * @file seek-bar.js\n     */\n\n        // The number of seconds the `step*` functions move the timeline.\n    const STEP_SECONDS = 5;\n\n    // The multiplier of STEP_SECONDS that PgUp/PgDown move the timeline.\n    const PAGE_KEY_MULTIPLIER = 12;\n\n    /**\n     * Seek bar and container for the progress bars. Uses {@link PlayProgressBar}\n     * as its `bar`.\n     *\n     * @extends Slider\n     */\n    class SeekBar extends Slider {\n        /**\n         * Creates an instance of this class.\n         *\n         * @param { import('../../player').default } player\n         *        The `Player` that this class should be attached to.\n         *\n         * @param {Object} [options]\n         *        The key/value store of player options.\n         */\n        constructor(player, options) {\n            super(player, options);\n            this.setEventHandlers_();\n        }\n\n        /**\n         * Sets the event handlers\n         *\n         * @private\n         */\n        setEventHandlers_() {\n            this.update_ = bind_(this, this.update);\n            this.update = throttle(this.update_, UPDATE_REFRESH_INTERVAL);\n            this.on(this.player_, ['ended', 'durationchange', 'timeupdate'], this.update);\n            if (this.player_.liveTracker) {\n                this.on(this.player_.liveTracker, 'liveedgechange', this.update);\n            }\n\n            // when playing, let's ensure we smoothly update the play progress bar\n            // via an interval\n            this.updateInterval = null;\n            this.enableIntervalHandler_ = e => this.enableInterval_(e);\n            this.disableIntervalHandler_ = e => this.disableInterval_(e);\n            this.on(this.player_, ['playing'], this.enableIntervalHandler_);\n            this.on(this.player_, ['ended', 'pause', 'waiting'], this.disableIntervalHandler_);\n\n            // we don't need to update the play progress if the document is hidden,\n            // also, this causes the CPU to spike and eventually crash the page on IE11.\n            if ('hidden' in document && 'visibilityState' in document) {\n                this.on(document, 'visibilitychange', this.toggleVisibility_);\n            }\n        }\n        toggleVisibility_(e) {\n            if (document.visibilityState === 'hidden') {\n                this.cancelNamedAnimationFrame('SeekBar#update');\n                this.cancelNamedAnimationFrame('Slider#update');\n                this.disableInterval_(e);\n            } else {\n                if (!this.player_.ended() && !this.player_.paused()) {\n                    this.enableInterval_();\n                }\n\n                // we just switched back to the page and someone may be looking, so, update ASAP\n                this.update();\n            }\n        }\n        enableInterval_() {\n            if (this.updateInterval) {\n                return;\n            }\n            this.updateInterval = this.setInterval(this.update, UPDATE_REFRESH_INTERVAL);\n        }\n        disableInterval_(e) {\n            if (this.player_.liveTracker && this.player_.liveTracker.isLive() && e && e.type !== 'ended') {\n                return;\n            }\n            if (!this.updateInterval) {\n                return;\n            }\n            this.clearInterval(this.updateInterval);\n            this.updateInterval = null;\n        }\n\n        /**\n         * Create the `Component`'s DOM element\n         *\n         * @return {Element}\n         *         The element that was created.\n         */\n        createEl() {\n            return super.createEl('div', {\n                className: 'vjs-progress-holder'\n            }, {\n                'aria-label': this.localize('Progress Bar')\n            });\n        }\n\n        /**\n         * This function updates the play progress bar and accessibility\n         * attributes to whatever is passed in.\n         *\n         * @param {Event} [event]\n         *        The `timeupdate` or `ended` event that caused this to run.\n         *\n         * @listens Player#timeupdate\n         *\n         * @return {number}\n         *          The current percent at a number from 0-1\n         */\n        update(event) {\n            // ignore updates while the tab is hidden\n            if (document.visibilityState === 'hidden') {\n                return;\n            }\n            const percent = super.update();\n            this.requestNamedAnimationFrame('SeekBar#update', () => {\n                const currentTime = this.player_.ended() ? this.player_.duration() : this.getCurrentTime_();\n                const liveTracker = this.player_.liveTracker;\n                let duration = this.player_.duration();\n                if (liveTracker && liveTracker.isLive()) {\n                    duration = this.player_.liveTracker.liveCurrentTime();\n                }\n                if (this.percent_ !== percent) {\n                    // machine readable value of progress bar (percentage complete)\n                    this.el_.setAttribute('aria-valuenow', (percent * 100).toFixed(2));\n                    this.percent_ = percent;\n                }\n                if (this.currentTime_ !== currentTime || this.duration_ !== duration) {\n                    // human readable value of progress bar (time complete)\n                    this.el_.setAttribute('aria-valuetext', this.localize('progress bar timing: currentTime={1} duration={2}', [formatTime(currentTime, duration), formatTime(duration, duration)], '{1} of {2}'));\n                    this.currentTime_ = currentTime;\n                    this.duration_ = duration;\n                }\n\n                // update the progress bar time tooltip with the current time\n                if (this.bar) {\n                    this.bar.update(getBoundingClientRect(this.el()), this.getProgress());\n                }\n            });\n            return percent;\n        }\n\n        /**\n         * Prevent liveThreshold from causing seeks to seem like they\n         * are not happening from a user perspective.\n         *\n         * @param {number} ct\n         *        current time to seek to\n         */\n        userSeek_(ct) {\n            if (this.player_.liveTracker && this.player_.liveTracker.isLive()) {\n                this.player_.liveTracker.nextSeekedFromUser();\n            }\n            this.player_.currentTime(ct);\n        }\n\n        /**\n         * Get the value of current time but allows for smooth scrubbing,\n         * when player can't keep up.\n         *\n         * @return {number}\n         *         The current time value to display\n         *\n         * @private\n         */\n        getCurrentTime_() {\n            return this.player_.scrubbing() ? this.player_.getCache().currentTime : this.player_.currentTime();\n        }\n\n        /**\n         * Get the percentage of media played so far.\n         *\n         * @return {number}\n         *         The percentage of media played so far (0 to 1).\n         */\n        getPercent() {\n            const currentTime = this.getCurrentTime_();\n            let percent;\n            const liveTracker = this.player_.liveTracker;\n            if (liveTracker && liveTracker.isLive()) {\n                percent = (currentTime - liveTracker.seekableStart()) / liveTracker.liveWindow();\n\n                // prevent the percent from changing at the live edge\n                if (liveTracker.atLiveEdge()) {\n                    percent = 1;\n                }\n            } else {\n                percent = currentTime / this.player_.duration();\n            }\n            return percent;\n        }\n\n        /**\n         * Handle mouse down on seek bar\n         *\n         * @param {MouseEvent} event\n         *        The `mousedown` event that caused this to run.\n         *\n         * @listens mousedown\n         */\n        handleMouseDown(event) {\n            if (!isSingleLeftClick(event)) {\n                return;\n            }\n\n            // Stop event propagation to prevent double fire in progress-control.js\n            event.stopPropagation();\n            this.videoWasPlaying = !this.player_.paused();\n            this.player_.pause();\n            super.handleMouseDown(event);\n        }\n\n        /**\n         * Handle mouse move on seek bar\n         *\n         * @param {MouseEvent} event\n         *        The `mousemove` event that caused this to run.\n         * @param {boolean} mouseDown this is a flag that should be set to true if `handleMouseMove` is called directly. It allows us to skip things that should not happen if coming from mouse down but should happen on regular mouse move handler. Defaults to false\n         *\n         * @listens mousemove\n         */\n        handleMouseMove(event, mouseDown = false) {\n            if (!isSingleLeftClick(event)) {\n                return;\n            }\n            if (!mouseDown && !this.player_.scrubbing()) {\n                this.player_.scrubbing(true);\n            }\n            let newTime;\n            const distance = this.calculateDistance(event);\n            const liveTracker = this.player_.liveTracker;\n            if (!liveTracker || !liveTracker.isLive()) {\n                newTime = distance * this.player_.duration();\n\n                // Don't let video end while scrubbing.\n                if (newTime === this.player_.duration()) {\n                    newTime = newTime - 0.1;\n                }\n            } else {\n                if (distance >= 0.99) {\n                    liveTracker.seekToLiveEdge();\n                    return;\n                }\n                const seekableStart = liveTracker.seekableStart();\n                const seekableEnd = liveTracker.liveCurrentTime();\n                newTime = seekableStart + distance * liveTracker.liveWindow();\n\n                // Don't let video end while scrubbing.\n                if (newTime >= seekableEnd) {\n                    newTime = seekableEnd;\n                }\n\n                // Compensate for precision differences so that currentTime is not less\n                // than seekable start\n                if (newTime <= seekableStart) {\n                    newTime = seekableStart + 0.1;\n                }\n\n                // On android seekableEnd can be Infinity sometimes,\n                // this will cause newTime to be Infinity, which is\n                // not a valid currentTime.\n                if (newTime === Infinity) {\n                    return;\n                }\n            }\n\n            // Set new time (tell player to seek to new time)\n            this.userSeek_(newTime);\n        }\n        enable() {\n            super.enable();\n            const mouseTimeDisplay = this.getChild('mouseTimeDisplay');\n            if (!mouseTimeDisplay) {\n                return;\n            }\n            mouseTimeDisplay.show();\n        }\n        disable() {\n            super.disable();\n            const mouseTimeDisplay = this.getChild('mouseTimeDisplay');\n            if (!mouseTimeDisplay) {\n                return;\n            }\n            mouseTimeDisplay.hide();\n        }\n\n        /**\n         * Handle mouse up on seek bar\n         *\n         * @param {MouseEvent} event\n         *        The `mouseup` event that caused this to run.\n         *\n         * @listens mouseup\n         */\n        handleMouseUp(event) {\n            super.handleMouseUp(event);\n\n            // Stop event propagation to prevent double fire in progress-control.js\n            if (event) {\n                event.stopPropagation();\n            }\n            this.player_.scrubbing(false);\n\n            /**\n             * Trigger timeupdate because we're done seeking and the time has changed.\n             * This is particularly useful for if the player is paused to time the time displays.\n             *\n             * @event Tech#timeupdate\n             * @type {Event}\n             */\n            this.player_.trigger({\n                type: 'timeupdate',\n                target: this,\n                manuallyTriggered: true\n            });\n            if (this.videoWasPlaying) {\n                silencePromise(this.player_.play());\n            } else {\n                // We're done seeking and the time has changed.\n                // If the player is paused, make sure we display the correct time on the seek bar.\n                this.update_();\n            }\n        }\n\n        /**\n         * Move more quickly fast forward for keyboard-only users\n         */\n        stepForward() {\n            this.userSeek_(this.player_.currentTime() + STEP_SECONDS);\n        }\n\n        /**\n         * Move more quickly rewind for keyboard-only users\n         */\n        stepBack() {\n            this.userSeek_(this.player_.currentTime() - STEP_SECONDS);\n        }\n\n        /**\n         * Toggles the playback state of the player\n         * This gets called when enter or space is used on the seekbar\n         *\n         * @param {KeyboardEvent} event\n         *        The `keydown` event that caused this function to be called\n         *\n         */\n        handleAction(event) {\n            if (this.player_.paused()) {\n                this.player_.play();\n            } else {\n                this.player_.pause();\n            }\n        }\n\n        /**\n         * Called when this SeekBar has focus and a key gets pressed down.\n         * Supports the following keys:\n         *\n         *   Space or Enter key fire a click event\n         *   Home key moves to start of the timeline\n         *   End key moves to end of the timeline\n         *   Digit \"0\" through \"9\" keys move to 0%, 10% ... 80%, 90% of the timeline\n         *   PageDown key moves back a larger step than ArrowDown\n         *   PageUp key moves forward a large step\n         *\n         * @param {KeyboardEvent} event\n         *        The `keydown` event that caused this function to be called.\n         *\n         * @listens keydown\n         */\n        handleKeyDown(event) {\n            const liveTracker = this.player_.liveTracker;\n            if (keycode.isEventKey(event, 'Space') || keycode.isEventKey(event, 'Enter')) {\n                event.preventDefault();\n                event.stopPropagation();\n                this.handleAction(event);\n            } else if (keycode.isEventKey(event, 'Home')) {\n                event.preventDefault();\n                event.stopPropagation();\n                this.userSeek_(0);\n            } else if (keycode.isEventKey(event, 'End')) {\n                event.preventDefault();\n                event.stopPropagation();\n                if (liveTracker && liveTracker.isLive()) {\n                    this.userSeek_(liveTracker.liveCurrentTime());\n                } else {\n                    this.userSeek_(this.player_.duration());\n                }\n            } else if (/^[0-9]$/.test(keycode(event))) {\n                event.preventDefault();\n                event.stopPropagation();\n                const gotoFraction = (keycode.codes[keycode(event)] - keycode.codes['0']) * 10.0 / 100.0;\n                if (liveTracker && liveTracker.isLive()) {\n                    this.userSeek_(liveTracker.seekableStart() + liveTracker.liveWindow() * gotoFraction);\n                } else {\n                    this.userSeek_(this.player_.duration() * gotoFraction);\n                }\n            } else if (keycode.isEventKey(event, 'PgDn')) {\n                event.preventDefault();\n                event.stopPropagation();\n                this.userSeek_(this.player_.currentTime() - STEP_SECONDS * PAGE_KEY_MULTIPLIER);\n            } else if (keycode.isEventKey(event, 'PgUp')) {\n                event.preventDefault();\n                event.stopPropagation();\n                this.userSeek_(this.player_.currentTime() + STEP_SECONDS * PAGE_KEY_MULTIPLIER);\n            } else {\n                // Pass keydown handling up for unsupported keys\n                super.handleKeyDown(event);\n            }\n        }\n        dispose() {\n            this.disableInterval_();\n            this.off(this.player_, ['ended', 'durationchange', 'timeupdate'], this.update);\n            if (this.player_.liveTracker) {\n                this.off(this.player_.liveTracker, 'liveedgechange', this.update);\n            }\n            this.off(this.player_, ['playing'], this.enableIntervalHandler_);\n            this.off(this.player_, ['ended', 'pause', 'waiting'], this.disableIntervalHandler_);\n\n            // we don't need to update the play progress if the document is hidden,\n            // also, this causes the CPU to spike and eventually crash the page on IE11.\n            if ('hidden' in document && 'visibilityState' in document) {\n                this.off(document, 'visibilitychange', this.toggleVisibility_);\n            }\n            super.dispose();\n        }\n    }\n\n    /**\n     * Default options for the `SeekBar`\n     *\n     * @type {Object}\n     * @private\n     */\n    SeekBar.prototype.options_ = {\n        children: ['loadProgressBar', 'playProgressBar'],\n        barName: 'playProgressBar'\n    };\n\n    // MouseTimeDisplay tooltips should not be added to a player on mobile devices\n    if (!IS_IOS && !IS_ANDROID) {\n        SeekBar.prototype.options_.children.splice(1, 0, 'mouseTimeDisplay');\n    }\n    Component$1.registerComponent('SeekBar', SeekBar);\n\n    /**\n     * @file progress-control.js\n     */\n\n    /**\n     * The Progress Control component contains the seek bar, load progress,\n     * and play progress.\n     *\n     * @extends Component\n     */\n    class ProgressControl extends Component$1 {\n        /**\n         * Creates an instance of this class.\n         *\n         * @param { import('../../player').default } player\n         *        The `Player` that this class should be attached to.\n         *\n         * @param {Object} [options]\n         *        The key/value store of player options.\n         */\n        constructor(player, options) {\n            super(player, options);\n            this.handleMouseMove = throttle(bind_(this, this.handleMouseMove), UPDATE_REFRESH_INTERVAL);\n            this.throttledHandleMouseSeek = throttle(bind_(this, this.handleMouseSeek), UPDATE_REFRESH_INTERVAL);\n            this.handleMouseUpHandler_ = e => this.handleMouseUp(e);\n            this.handleMouseDownHandler_ = e => this.handleMouseDown(e);\n            this.enable();\n        }\n\n        /**\n         * Create the `Component`'s DOM element\n         *\n         * @return {Element}\n         *         The element that was created.\n         */\n        createEl() {\n            return super.createEl('div', {\n                className: 'vjs-progress-control vjs-control'\n            });\n        }\n\n        /**\n         * When the mouse moves over the `ProgressControl`, the pointer position\n         * gets passed down to the `MouseTimeDisplay` component.\n         *\n         * @param {Event} event\n         *        The `mousemove` event that caused this function to run.\n         *\n         * @listen mousemove\n         */\n        handleMouseMove(event) {\n            const seekBar = this.getChild('seekBar');\n            if (!seekBar) {\n                return;\n            }\n            const playProgressBar = seekBar.getChild('playProgressBar');\n            const mouseTimeDisplay = seekBar.getChild('mouseTimeDisplay');\n            if (!playProgressBar && !mouseTimeDisplay) {\n                return;\n            }\n            const seekBarEl = seekBar.el();\n            const seekBarRect = findPosition(seekBarEl);\n            let seekBarPoint = getPointerPosition(seekBarEl, event).x;\n\n            // The default skin has a gap on either side of the `SeekBar`. This means\n            // that it's possible to trigger this behavior outside the boundaries of\n            // the `SeekBar`. This ensures we stay within it at all times.\n            seekBarPoint = clamp(seekBarPoint, 0, 1);\n            if (mouseTimeDisplay) {\n                mouseTimeDisplay.update(seekBarRect, seekBarPoint);\n            }\n            if (playProgressBar) {\n                playProgressBar.update(seekBarRect, seekBar.getProgress());\n            }\n        }\n\n        /**\n         * A throttled version of the {@link ProgressControl#handleMouseSeek} listener.\n         *\n         * @method ProgressControl#throttledHandleMouseSeek\n         * @param {Event} event\n         *        The `mousemove` event that caused this function to run.\n         *\n         * @listen mousemove\n         * @listen touchmove\n         */\n\n        /**\n         * Handle `mousemove` or `touchmove` events on the `ProgressControl`.\n         *\n         * @param {Event} event\n         *        `mousedown` or `touchstart` event that triggered this function\n         *\n         * @listens mousemove\n         * @listens touchmove\n         */\n        handleMouseSeek(event) {\n            const seekBar = this.getChild('seekBar');\n            if (seekBar) {\n                seekBar.handleMouseMove(event);\n            }\n        }\n\n        /**\n         * Are controls are currently enabled for this progress control.\n         *\n         * @return {boolean}\n         *         true if controls are enabled, false otherwise\n         */\n        enabled() {\n            return this.enabled_;\n        }\n\n        /**\n         * Disable all controls on the progress control and its children\n         */\n        disable() {\n            this.children().forEach(child => child.disable && child.disable());\n            if (!this.enabled()) {\n                return;\n            }\n            this.off(['mousedown', 'touchstart'], this.handleMouseDownHandler_);\n            this.off(this.el_, 'mousemove', this.handleMouseMove);\n            this.removeListenersAddedOnMousedownAndTouchstart();\n            this.addClass('disabled');\n            this.enabled_ = false;\n\n            // Restore normal playback state if controls are disabled while scrubbing\n            if (this.player_.scrubbing()) {\n                const seekBar = this.getChild('seekBar');\n                this.player_.scrubbing(false);\n                if (seekBar.videoWasPlaying) {\n                    silencePromise(this.player_.play());\n                }\n            }\n        }\n\n        /**\n         * Enable all controls on the progress control and its children\n         */\n        enable() {\n            this.children().forEach(child => child.enable && child.enable());\n            if (this.enabled()) {\n                return;\n            }\n            this.on(['mousedown', 'touchstart'], this.handleMouseDownHandler_);\n            this.on(this.el_, 'mousemove', this.handleMouseMove);\n            this.removeClass('disabled');\n            this.enabled_ = true;\n        }\n\n        /**\n         * Cleanup listeners after the user finishes interacting with the progress controls\n         */\n        removeListenersAddedOnMousedownAndTouchstart() {\n            const doc = this.el_.ownerDocument;\n            this.off(doc, 'mousemove', this.throttledHandleMouseSeek);\n            this.off(doc, 'touchmove', this.throttledHandleMouseSeek);\n            this.off(doc, 'mouseup', this.handleMouseUpHandler_);\n            this.off(doc, 'touchend', this.handleMouseUpHandler_);\n        }\n\n        /**\n         * Handle `mousedown` or `touchstart` events on the `ProgressControl`.\n         *\n         * @param {Event} event\n         *        `mousedown` or `touchstart` event that triggered this function\n         *\n         * @listens mousedown\n         * @listens touchstart\n         */\n        handleMouseDown(event) {\n            const doc = this.el_.ownerDocument;\n            const seekBar = this.getChild('seekBar');\n            if (seekBar) {\n                seekBar.handleMouseDown(event);\n            }\n            this.on(doc, 'mousemove', this.throttledHandleMouseSeek);\n            this.on(doc, 'touchmove', this.throttledHandleMouseSeek);\n            this.on(doc, 'mouseup', this.handleMouseUpHandler_);\n            this.on(doc, 'touchend', this.handleMouseUpHandler_);\n        }\n\n        /**\n         * Handle `mouseup` or `touchend` events on the `ProgressControl`.\n         *\n         * @param {Event} event\n         *        `mouseup` or `touchend` event that triggered this function.\n         *\n         * @listens touchend\n         * @listens mouseup\n         */\n        handleMouseUp(event) {\n            const seekBar = this.getChild('seekBar');\n            if (seekBar) {\n                seekBar.handleMouseUp(event);\n            }\n            this.removeListenersAddedOnMousedownAndTouchstart();\n        }\n    }\n\n    /**\n     * Default options for `ProgressControl`\n     *\n     * @type {Object}\n     * @private\n     */\n    ProgressControl.prototype.options_ = {\n        children: ['seekBar']\n    };\n    Component$1.registerComponent('ProgressControl', ProgressControl);\n\n    /**\n     * @file picture-in-picture-toggle.js\n     */\n\n    /**\n     * Toggle Picture-in-Picture mode\n     *\n     * @extends Button\n     */\n    class PictureInPictureToggle extends Button {\n        /**\n         * Creates an instance of this class.\n         *\n         * @param { import('./player').default } player\n         *        The `Player` that this class should be attached to.\n         *\n         * @param {Object} [options]\n         *        The key/value store of player options.\n         *\n         * @listens Player#enterpictureinpicture\n         * @listens Player#leavepictureinpicture\n         */\n        constructor(player, options) {\n            super(player, options);\n            this.on(player, ['enterpictureinpicture', 'leavepictureinpicture'], e => this.handlePictureInPictureChange(e));\n            this.on(player, ['disablepictureinpicturechanged', 'loadedmetadata'], e => this.handlePictureInPictureEnabledChange(e));\n            this.on(player, ['loadedmetadata', 'audioonlymodechange', 'audiopostermodechange'], () => {\n                // This audio detection will not detect HLS or DASH audio-only streams because there was no reliable way to detect them at the time\n                const isSourceAudio = player.currentType().substring(0, 5) === 'audio';\n                if (isSourceAudio || player.audioPosterMode() || player.audioOnlyMode()) {\n                    if (player.isInPictureInPicture()) {\n                        player.exitPictureInPicture();\n                    }\n                    this.hide();\n                } else {\n                    this.show();\n                }\n            });\n\n            // TODO: Deactivate button on player emptied event.\n            this.disable();\n        }\n\n        /**\n         * Builds the default DOM `className`.\n         *\n         * @return {string}\n         *         The DOM `className` for this object.\n         */\n        buildCSSClass() {\n            return `vjs-picture-in-picture-control ${super.buildCSSClass()}`;\n        }\n\n        /**\n         * Enables or disables button based on availability of a Picture-In-Picture mode.\n         *\n         * Enabled if\n         * - `player.options().enableDocumentPictureInPicture` is true and\n         *   window.documentPictureInPicture is available; or\n         * - `player.disablePictureInPicture()` is false and\n         *   element.requestPictureInPicture is available\n         */\n        handlePictureInPictureEnabledChange() {\n            if (document.pictureInPictureEnabled && this.player_.disablePictureInPicture() === false || this.player_.options_.enableDocumentPictureInPicture && 'documentPictureInPicture' in window) {\n                this.enable();\n            } else {\n                this.disable();\n            }\n        }\n\n        /**\n         * Handles enterpictureinpicture and leavepictureinpicture on the player and change control text accordingly.\n         *\n         * @param {Event} [event]\n         *        The {@link Player#enterpictureinpicture} or {@link Player#leavepictureinpicture} event that caused this function to be\n         *        called.\n         *\n         * @listens Player#enterpictureinpicture\n         * @listens Player#leavepictureinpicture\n         */\n        handlePictureInPictureChange(event) {\n            if (this.player_.isInPictureInPicture()) {\n                this.controlText('Exit Picture-in-Picture');\n            } else {\n                this.controlText('Picture-in-Picture');\n            }\n            this.handlePictureInPictureEnabledChange();\n        }\n\n        /**\n         * This gets called when an `PictureInPictureToggle` is \"clicked\". See\n         * {@link ClickableComponent} for more detailed information on what a click can be.\n         *\n         * @param {Event} [event]\n         *        The `keydown`, `tap`, or `click` event that caused this function to be\n         *        called.\n         *\n         * @listens tap\n         * @listens click\n         */\n        handleClick(event) {\n            if (!this.player_.isInPictureInPicture()) {\n                this.player_.requestPictureInPicture();\n            } else {\n                this.player_.exitPictureInPicture();\n            }\n        }\n    }\n\n    /**\n     * The text that should display over the `PictureInPictureToggle`s controls. Added for localization.\n     *\n     * @type {string}\n     * @protected\n     */\n    PictureInPictureToggle.prototype.controlText_ = 'Picture-in-Picture';\n    Component$1.registerComponent('PictureInPictureToggle', PictureInPictureToggle);\n\n    /**\n     * @file fullscreen-toggle.js\n     */\n\n    /**\n     * Toggle fullscreen video\n     *\n     * @extends Button\n     */\n    class FullscreenToggle extends Button {\n        /**\n         * Creates an instance of this class.\n         *\n         * @param { import('./player').default } player\n         *        The `Player` that this class should be attached to.\n         *\n         * @param {Object} [options]\n         *        The key/value store of player options.\n         */\n        constructor(player, options) {\n            super(player, options);\n            this.on(player, 'fullscreenchange', e => this.handleFullscreenChange(e));\n            if (document[player.fsApi_.fullscreenEnabled] === false) {\n                this.disable();\n            }\n        }\n\n        /**\n         * Builds the default DOM `className`.\n         *\n         * @return {string}\n         *         The DOM `className` for this object.\n         */\n        buildCSSClass() {\n            return `vjs-fullscreen-control ${super.buildCSSClass()}`;\n        }\n\n        /**\n         * Handles fullscreenchange on the player and change control text accordingly.\n         *\n         * @param {Event} [event]\n         *        The {@link Player#fullscreenchange} event that caused this function to be\n         *        called.\n         *\n         * @listens Player#fullscreenchange\n         */\n        handleFullscreenChange(event) {\n            if (this.player_.isFullscreen()) {\n                this.controlText('Exit Fullscreen');\n            } else {\n                this.controlText('Fullscreen');\n            }\n        }\n\n        /**\n         * This gets called when an `FullscreenToggle` is \"clicked\". See\n         * {@link ClickableComponent} for more detailed information on what a click can be.\n         *\n         * @param {Event} [event]\n         *        The `keydown`, `tap`, or `click` event that caused this function to be\n         *        called.\n         *\n         * @listens tap\n         * @listens click\n         */\n        handleClick(event) {\n            if (!this.player_.isFullscreen()) {\n                this.player_.requestFullscreen();\n            } else {\n                this.player_.exitFullscreen();\n            }\n        }\n    }\n\n    /**\n     * The text that should display over the `FullscreenToggle`s controls. Added for localization.\n     *\n     * @type {string}\n     * @protected\n     */\n    FullscreenToggle.prototype.controlText_ = 'Fullscreen';\n    Component$1.registerComponent('FullscreenToggle', FullscreenToggle);\n\n    /**\n     * Check if volume control is supported and if it isn't hide the\n     * `Component` that was passed  using the `vjs-hidden` class.\n     *\n     * @param { import('../../component').default } self\n     *        The component that should be hidden if volume is unsupported\n     *\n     * @param { import('../../player').default } player\n     *        A reference to the player\n     *\n     * @private\n     */\n    const checkVolumeSupport = function (self, player) {\n        // hide volume controls when they're not supported by the current tech\n        if (player.tech_ && !player.tech_.featuresVolumeControl) {\n            self.addClass('vjs-hidden');\n        }\n        self.on(player, 'loadstart', function () {\n            if (!player.tech_.featuresVolumeControl) {\n                self.addClass('vjs-hidden');\n            } else {\n                self.removeClass('vjs-hidden');\n            }\n        });\n    };\n\n    /**\n     * @file volume-level.js\n     */\n\n    /**\n     * Shows volume level\n     *\n     * @extends Component\n     */\n    class VolumeLevel extends Component$1 {\n        /**\n         * Create the `Component`'s DOM element\n         *\n         * @return {Element}\n         *         The element that was created.\n         */\n        createEl() {\n            const el = super.createEl('div', {\n                className: 'vjs-volume-level'\n            });\n            el.appendChild(super.createEl('span', {\n                className: 'vjs-control-text'\n            }));\n            return el;\n        }\n    }\n    Component$1.registerComponent('VolumeLevel', VolumeLevel);\n\n    /**\n     * @file volume-level-tooltip.js\n     */\n\n    /**\n     * Volume level tooltips display a volume above or side by side the volume bar.\n     *\n     * @extends Component\n     */\n    class VolumeLevelTooltip extends Component$1 {\n        /**\n         * Creates an instance of this class.\n         *\n         * @param { import('../../player').default } player\n         *        The {@link Player} that this class should be attached to.\n         *\n         * @param {Object} [options]\n         *        The key/value store of player options.\n         */\n        constructor(player, options) {\n            super(player, options);\n            this.update = throttle(bind_(this, this.update), UPDATE_REFRESH_INTERVAL);\n        }\n\n        /**\n         * Create the volume tooltip DOM element\n         *\n         * @return {Element}\n         *         The element that was created.\n         */\n        createEl() {\n            return super.createEl('div', {\n                className: 'vjs-volume-tooltip'\n            }, {\n                'aria-hidden': 'true'\n            });\n        }\n\n        /**\n         * Updates the position of the tooltip relative to the `VolumeBar` and\n         * its content text.\n         *\n         * @param {Object} rangeBarRect\n         *        The `ClientRect` for the {@link VolumeBar} element.\n         *\n         * @param {number} rangeBarPoint\n         *        A number from 0 to 1, representing a horizontal/vertical reference point\n         *        from the left edge of the {@link VolumeBar}\n         *\n         * @param {boolean} vertical\n         *        Referees to the Volume control position\n         *        in the control bar{@link VolumeControl}\n         *\n         */\n        update(rangeBarRect, rangeBarPoint, vertical, content) {\n            if (!vertical) {\n                const tooltipRect = getBoundingClientRect(this.el_);\n                const playerRect = getBoundingClientRect(this.player_.el());\n                const volumeBarPointPx = rangeBarRect.width * rangeBarPoint;\n                if (!playerRect || !tooltipRect) {\n                    return;\n                }\n                const spaceLeftOfPoint = rangeBarRect.left - playerRect.left + volumeBarPointPx;\n                const spaceRightOfPoint = rangeBarRect.width - volumeBarPointPx + (playerRect.right - rangeBarRect.right);\n                let pullTooltipBy = tooltipRect.width / 2;\n                if (spaceLeftOfPoint < pullTooltipBy) {\n                    pullTooltipBy += pullTooltipBy - spaceLeftOfPoint;\n                } else if (spaceRightOfPoint < pullTooltipBy) {\n                    pullTooltipBy = spaceRightOfPoint;\n                }\n                if (pullTooltipBy < 0) {\n                    pullTooltipBy = 0;\n                } else if (pullTooltipBy > tooltipRect.width) {\n                    pullTooltipBy = tooltipRect.width;\n                }\n                this.el_.style.right = `-${pullTooltipBy}px`;\n            }\n            this.write(`${content}%`);\n        }\n\n        /**\n         * Write the volume to the tooltip DOM element.\n         *\n         * @param {string} content\n         *        The formatted volume for the tooltip.\n         */\n        write(content) {\n            textContent(this.el_, content);\n        }\n\n        /**\n         * Updates the position of the volume tooltip relative to the `VolumeBar`.\n         *\n         * @param {Object} rangeBarRect\n         *        The `ClientRect` for the {@link VolumeBar} element.\n         *\n         * @param {number} rangeBarPoint\n         *        A number from 0 to 1, representing a horizontal/vertical reference point\n         *        from the left edge of the {@link VolumeBar}\n         *\n         * @param {boolean} vertical\n         *        Referees to the Volume control position\n         *        in the control bar{@link VolumeControl}\n         *\n         * @param {number} volume\n         *        The volume level to update the tooltip to\n         *\n         * @param {Function} cb\n         *        A function that will be called during the request animation frame\n         *        for tooltips that need to do additional animations from the default\n         */\n        updateVolume(rangeBarRect, rangeBarPoint, vertical, volume, cb) {\n            this.requestNamedAnimationFrame('VolumeLevelTooltip#updateVolume', () => {\n                this.update(rangeBarRect, rangeBarPoint, vertical, volume.toFixed(0));\n                if (cb) {\n                    cb();\n                }\n            });\n        }\n    }\n    Component$1.registerComponent('VolumeLevelTooltip', VolumeLevelTooltip);\n\n    /**\n     * @file mouse-volume-level-display.js\n     */\n\n    /**\n     * The {@link MouseVolumeLevelDisplay} component tracks mouse movement over the\n     * {@link VolumeControl}. It displays an indicator and a {@link VolumeLevelTooltip}\n     * indicating the volume level which is represented by a given point in the\n     * {@link VolumeBar}.\n     *\n     * @extends Component\n     */\n    class MouseVolumeLevelDisplay extends Component$1 {\n        /**\n         * Creates an instance of this class.\n         *\n         * @param { import('../../player').default } player\n         *        The {@link Player} that this class should be attached to.\n         *\n         * @param {Object} [options]\n         *        The key/value store of player options.\n         */\n        constructor(player, options) {\n            super(player, options);\n            this.update = throttle(bind_(this, this.update), UPDATE_REFRESH_INTERVAL);\n        }\n\n        /**\n         * Create the DOM element for this class.\n         *\n         * @return {Element}\n         *         The element that was created.\n         */\n        createEl() {\n            return super.createEl('div', {\n                className: 'vjs-mouse-display'\n            });\n        }\n\n        /**\n         * Enquires updates to its own DOM as well as the DOM of its\n         * {@link VolumeLevelTooltip} child.\n         *\n         * @param {Object} rangeBarRect\n         *        The `ClientRect` for the {@link VolumeBar} element.\n         *\n         * @param {number} rangeBarPoint\n         *        A number from 0 to 1, representing a horizontal/vertical reference point\n         *        from the left edge of the {@link VolumeBar}\n         *\n         * @param {boolean} vertical\n         *        Referees to the Volume control position\n         *        in the control bar{@link VolumeControl}\n         *\n         */\n        update(rangeBarRect, rangeBarPoint, vertical) {\n            const volume = 100 * rangeBarPoint;\n            this.getChild('volumeLevelTooltip').updateVolume(rangeBarRect, rangeBarPoint, vertical, volume, () => {\n                if (vertical) {\n                    this.el_.style.bottom = `${rangeBarRect.height * rangeBarPoint}px`;\n                } else {\n                    this.el_.style.left = `${rangeBarRect.width * rangeBarPoint}px`;\n                }\n            });\n        }\n    }\n\n    /**\n     * Default options for `MouseVolumeLevelDisplay`\n     *\n     * @type {Object}\n     * @private\n     */\n    MouseVolumeLevelDisplay.prototype.options_ = {\n        children: ['volumeLevelTooltip']\n    };\n    Component$1.registerComponent('MouseVolumeLevelDisplay', MouseVolumeLevelDisplay);\n\n    /**\n     * @file volume-bar.js\n     */\n\n    /**\n     * The bar that contains the volume level and can be clicked on to adjust the level\n     *\n     * @extends Slider\n     */\n    class VolumeBar extends Slider {\n        /**\n         * Creates an instance of this class.\n         *\n         * @param { import('../../player').default } player\n         *        The `Player` that this class should be attached to.\n         *\n         * @param {Object} [options]\n         *        The key/value store of player options.\n         */\n        constructor(player, options) {\n            super(player, options);\n            this.on('slideractive', e => this.updateLastVolume_(e));\n            this.on(player, 'volumechange', e => this.updateARIAAttributes(e));\n            player.ready(() => this.updateARIAAttributes());\n        }\n\n        /**\n         * Create the `Component`'s DOM element\n         *\n         * @return {Element}\n         *         The element that was created.\n         */\n        createEl() {\n            return super.createEl('div', {\n                className: 'vjs-volume-bar vjs-slider-bar'\n            }, {\n                'aria-label': this.localize('Volume Level'),\n                'aria-live': 'polite'\n            });\n        }\n\n        /**\n         * Handle mouse down on volume bar\n         *\n         * @param {Event} event\n         *        The `mousedown` event that caused this to run.\n         *\n         * @listens mousedown\n         */\n        handleMouseDown(event) {\n            if (!isSingleLeftClick(event)) {\n                return;\n            }\n            super.handleMouseDown(event);\n        }\n\n        /**\n         * Handle movement events on the {@link VolumeMenuButton}.\n         *\n         * @param {Event} event\n         *        The event that caused this function to run.\n         *\n         * @listens mousemove\n         */\n        handleMouseMove(event) {\n            const mouseVolumeLevelDisplay = this.getChild('mouseVolumeLevelDisplay');\n            if (mouseVolumeLevelDisplay) {\n                const volumeBarEl = this.el();\n                const volumeBarRect = getBoundingClientRect(volumeBarEl);\n                const vertical = this.vertical();\n                let volumeBarPoint = getPointerPosition(volumeBarEl, event);\n                volumeBarPoint = vertical ? volumeBarPoint.y : volumeBarPoint.x;\n                // The default skin has a gap on either side of the `VolumeBar`. This means\n                // that it's possible to trigger this behavior outside the boundaries of\n                // the `VolumeBar`. This ensures we stay within it at all times.\n                volumeBarPoint = clamp(volumeBarPoint, 0, 1);\n                mouseVolumeLevelDisplay.update(volumeBarRect, volumeBarPoint, vertical);\n            }\n            if (!isSingleLeftClick(event)) {\n                return;\n            }\n            this.checkMuted();\n            this.player_.volume(this.calculateDistance(event));\n        }\n\n        /**\n         * If the player is muted unmute it.\n         */\n        checkMuted() {\n            if (this.player_.muted()) {\n                this.player_.muted(false);\n            }\n        }\n\n        /**\n         * Get percent of volume level\n         *\n         * @return {number}\n         *         Volume level percent as a decimal number.\n         */\n        getPercent() {\n            if (this.player_.muted()) {\n                return 0;\n            }\n            return this.player_.volume();\n        }\n\n        /**\n         * Increase volume level for keyboard users\n         */\n        stepForward() {\n            this.checkMuted();\n            this.player_.volume(this.player_.volume() + 0.1);\n        }\n\n        /**\n         * Decrease volume level for keyboard users\n         */\n        stepBack() {\n            this.checkMuted();\n            this.player_.volume(this.player_.volume() - 0.1);\n        }\n\n        /**\n         * Update ARIA accessibility attributes\n         *\n         * @param {Event} [event]\n         *        The `volumechange` event that caused this function to run.\n         *\n         * @listens Player#volumechange\n         */\n        updateARIAAttributes(event) {\n            const ariaValue = this.player_.muted() ? 0 : this.volumeAsPercentage_();\n            this.el_.setAttribute('aria-valuenow', ariaValue);\n            this.el_.setAttribute('aria-valuetext', ariaValue + '%');\n        }\n\n        /**\n         * Returns the current value of the player volume as a percentage\n         *\n         * @private\n         */\n        volumeAsPercentage_() {\n            return Math.round(this.player_.volume() * 100);\n        }\n\n        /**\n         * When user starts dragging the VolumeBar, store the volume and listen for\n         * the end of the drag. When the drag ends, if the volume was set to zero,\n         * set lastVolume to the stored volume.\n         *\n         * @listens slideractive\n         * @private\n         */\n        updateLastVolume_() {\n            const volumeBeforeDrag = this.player_.volume();\n            this.one('sliderinactive', () => {\n                if (this.player_.volume() === 0) {\n                    this.player_.lastVolume_(volumeBeforeDrag);\n                }\n            });\n        }\n    }\n\n    /**\n     * Default options for the `VolumeBar`\n     *\n     * @type {Object}\n     * @private\n     */\n    VolumeBar.prototype.options_ = {\n        children: ['volumeLevel'],\n        barName: 'volumeLevel'\n    };\n\n    // MouseVolumeLevelDisplay tooltip should not be added to a player on mobile devices\n    if (!IS_IOS && !IS_ANDROID) {\n        VolumeBar.prototype.options_.children.splice(0, 0, 'mouseVolumeLevelDisplay');\n    }\n\n    /**\n     * Call the update event for this Slider when this event happens on the player.\n     *\n     * @type {string}\n     */\n    VolumeBar.prototype.playerEvent = 'volumechange';\n    Component$1.registerComponent('VolumeBar', VolumeBar);\n\n    /**\n     * @file volume-control.js\n     */\n\n    /**\n     * The component for controlling the volume level\n     *\n     * @extends Component\n     */\n    class VolumeControl extends Component$1 {\n        /**\n         * Creates an instance of this class.\n         *\n         * @param { import('../../player').default } player\n         *        The `Player` that this class should be attached to.\n         *\n         * @param {Object} [options={}]\n         *        The key/value store of player options.\n         */\n        constructor(player, options = {}) {\n            options.vertical = options.vertical || false;\n\n            // Pass the vertical option down to the VolumeBar if\n            // the VolumeBar is turned on.\n            if (typeof options.volumeBar === 'undefined' || isPlain(options.volumeBar)) {\n                options.volumeBar = options.volumeBar || {};\n                options.volumeBar.vertical = options.vertical;\n            }\n            super(player, options);\n\n            // hide this control if volume support is missing\n            checkVolumeSupport(this, player);\n            this.throttledHandleMouseMove = throttle(bind_(this, this.handleMouseMove), UPDATE_REFRESH_INTERVAL);\n            this.handleMouseUpHandler_ = e => this.handleMouseUp(e);\n            this.on('mousedown', e => this.handleMouseDown(e));\n            this.on('touchstart', e => this.handleMouseDown(e));\n            this.on('mousemove', e => this.handleMouseMove(e));\n\n            // while the slider is active (the mouse has been pressed down and\n            // is dragging) or in focus we do not want to hide the VolumeBar\n            this.on(this.volumeBar, ['focus', 'slideractive'], () => {\n                this.volumeBar.addClass('vjs-slider-active');\n                this.addClass('vjs-slider-active');\n                this.trigger('slideractive');\n            });\n            this.on(this.volumeBar, ['blur', 'sliderinactive'], () => {\n                this.volumeBar.removeClass('vjs-slider-active');\n                this.removeClass('vjs-slider-active');\n                this.trigger('sliderinactive');\n            });\n        }\n\n        /**\n         * Create the `Component`'s DOM element\n         *\n         * @return {Element}\n         *         The element that was created.\n         */\n        createEl() {\n            let orientationClass = 'vjs-volume-horizontal';\n            if (this.options_.vertical) {\n                orientationClass = 'vjs-volume-vertical';\n            }\n            return super.createEl('div', {\n                className: `vjs-volume-control vjs-control ${orientationClass}`\n            });\n        }\n\n        /**\n         * Handle `mousedown` or `touchstart` events on the `VolumeControl`.\n         *\n         * @param {Event} event\n         *        `mousedown` or `touchstart` event that triggered this function\n         *\n         * @listens mousedown\n         * @listens touchstart\n         */\n        handleMouseDown(event) {\n            const doc = this.el_.ownerDocument;\n            this.on(doc, 'mousemove', this.throttledHandleMouseMove);\n            this.on(doc, 'touchmove', this.throttledHandleMouseMove);\n            this.on(doc, 'mouseup', this.handleMouseUpHandler_);\n            this.on(doc, 'touchend', this.handleMouseUpHandler_);\n        }\n\n        /**\n         * Handle `mouseup` or `touchend` events on the `VolumeControl`.\n         *\n         * @param {Event} event\n         *        `mouseup` or `touchend` event that triggered this function.\n         *\n         * @listens touchend\n         * @listens mouseup\n         */\n        handleMouseUp(event) {\n            const doc = this.el_.ownerDocument;\n            this.off(doc, 'mousemove', this.throttledHandleMouseMove);\n            this.off(doc, 'touchmove', this.throttledHandleMouseMove);\n            this.off(doc, 'mouseup', this.handleMouseUpHandler_);\n            this.off(doc, 'touchend', this.handleMouseUpHandler_);\n        }\n\n        /**\n         * Handle `mousedown` or `touchstart` events on the `VolumeControl`.\n         *\n         * @param {Event} event\n         *        `mousedown` or `touchstart` event that triggered this function\n         *\n         * @listens mousedown\n         * @listens touchstart\n         */\n        handleMouseMove(event) {\n            this.volumeBar.handleMouseMove(event);\n        }\n    }\n\n    /**\n     * Default options for the `VolumeControl`\n     *\n     * @type {Object}\n     * @private\n     */\n    VolumeControl.prototype.options_ = {\n        children: ['volumeBar']\n    };\n    Component$1.registerComponent('VolumeControl', VolumeControl);\n\n    /**\n     * Check if muting volume is supported and if it isn't hide the mute toggle\n     * button.\n     *\n     * @param { import('../../component').default } self\n     *        A reference to the mute toggle button\n     *\n     * @param { import('../../player').default } player\n     *        A reference to the player\n     *\n     * @private\n     */\n    const checkMuteSupport = function (self, player) {\n        // hide mute toggle button if it's not supported by the current tech\n        if (player.tech_ && !player.tech_.featuresMuteControl) {\n            self.addClass('vjs-hidden');\n        }\n        self.on(player, 'loadstart', function () {\n            if (!player.tech_.featuresMuteControl) {\n                self.addClass('vjs-hidden');\n            } else {\n                self.removeClass('vjs-hidden');\n            }\n        });\n    };\n\n    /**\n     * @file mute-toggle.js\n     */\n\n    /**\n     * A button component for muting the audio.\n     *\n     * @extends Button\n     */\n    class MuteToggle extends Button {\n        /**\n         * Creates an instance of this class.\n         *\n         * @param { import('./player').default } player\n         *        The `Player` that this class should be attached to.\n         *\n         * @param {Object} [options]\n         *        The key/value store of player options.\n         */\n        constructor(player, options) {\n            super(player, options);\n\n            // hide this control if volume support is missing\n            checkMuteSupport(this, player);\n            this.on(player, ['loadstart', 'volumechange'], e => this.update(e));\n        }\n\n        /**\n         * Builds the default DOM `className`.\n         *\n         * @return {string}\n         *         The DOM `className` for this object.\n         */\n        buildCSSClass() {\n            return `vjs-mute-control ${super.buildCSSClass()}`;\n        }\n\n        /**\n         * This gets called when an `MuteToggle` is \"clicked\". See\n         * {@link ClickableComponent} for more detailed information on what a click can be.\n         *\n         * @param {Event} [event]\n         *        The `keydown`, `tap`, or `click` event that caused this function to be\n         *        called.\n         *\n         * @listens tap\n         * @listens click\n         */\n        handleClick(event) {\n            const vol = this.player_.volume();\n            const lastVolume = this.player_.lastVolume_();\n            if (vol === 0) {\n                const volumeToSet = lastVolume < 0.1 ? 0.1 : lastVolume;\n                this.player_.volume(volumeToSet);\n                this.player_.muted(false);\n            } else {\n                this.player_.muted(this.player_.muted() ? false : true);\n            }\n        }\n\n        /**\n         * Update the `MuteToggle` button based on the state of `volume` and `muted`\n         * on the player.\n         *\n         * @param {Event} [event]\n         *        The {@link Player#loadstart} event if this function was called\n         *        through an event.\n         *\n         * @listens Player#loadstart\n         * @listens Player#volumechange\n         */\n        update(event) {\n            this.updateIcon_();\n            this.updateControlText_();\n        }\n\n        /**\n         * Update the appearance of the `MuteToggle` icon.\n         *\n         * Possible states (given `level` variable below):\n         * - 0: crossed out\n         * - 1: zero bars of volume\n         * - 2: one bar of volume\n         * - 3: two bars of volume\n         *\n         * @private\n         */\n        updateIcon_() {\n            const vol = this.player_.volume();\n            let level = 3;\n\n            // in iOS when a player is loaded with muted attribute\n            // and volume is changed with a native mute button\n            // we want to make sure muted state is updated\n            if (IS_IOS && this.player_.tech_ && this.player_.tech_.el_) {\n                this.player_.muted(this.player_.tech_.el_.muted);\n            }\n            if (vol === 0 || this.player_.muted()) {\n                level = 0;\n            } else if (vol < 0.33) {\n                level = 1;\n            } else if (vol < 0.67) {\n                level = 2;\n            }\n            removeClass(this.el_, [0, 1, 2, 3].reduce((str, i) => str + `${i ? ' ' : ''}vjs-vol-${i}`, ''));\n            addClass(this.el_, `vjs-vol-${level}`);\n        }\n\n        /**\n         * If `muted` has changed on the player, update the control text\n         * (`title` attribute on `vjs-mute-control` element and content of\n         * `vjs-control-text` element).\n         *\n         * @private\n         */\n        updateControlText_() {\n            const soundOff = this.player_.muted() || this.player_.volume() === 0;\n            const text = soundOff ? 'Unmute' : 'Mute';\n            if (this.controlText() !== text) {\n                this.controlText(text);\n            }\n        }\n    }\n\n    /**\n     * The text that should display over the `MuteToggle`s controls. Added for localization.\n     *\n     * @type {string}\n     * @protected\n     */\n    MuteToggle.prototype.controlText_ = 'Mute';\n    Component$1.registerComponent('MuteToggle', MuteToggle);\n\n    /**\n     * @file volume-control.js\n     */\n\n    /**\n     * A Component to contain the MuteToggle and VolumeControl so that\n     * they can work together.\n     *\n     * @extends Component\n     */\n    class VolumePanel extends Component$1 {\n        /**\n         * Creates an instance of this class.\n         *\n         * @param { import('./player').default } player\n         *        The `Player` that this class should be attached to.\n         *\n         * @param {Object} [options={}]\n         *        The key/value store of player options.\n         */\n        constructor(player, options = {}) {\n            if (typeof options.inline !== 'undefined') {\n                options.inline = options.inline;\n            } else {\n                options.inline = true;\n            }\n\n            // pass the inline option down to the VolumeControl as vertical if\n            // the VolumeControl is on.\n            if (typeof options.volumeControl === 'undefined' || isPlain(options.volumeControl)) {\n                options.volumeControl = options.volumeControl || {};\n                options.volumeControl.vertical = !options.inline;\n            }\n            super(player, options);\n\n            // this handler is used by mouse handler methods below\n            this.handleKeyPressHandler_ = e => this.handleKeyPress(e);\n            this.on(player, ['loadstart'], e => this.volumePanelState_(e));\n            this.on(this.muteToggle, 'keyup', e => this.handleKeyPress(e));\n            this.on(this.volumeControl, 'keyup', e => this.handleVolumeControlKeyUp(e));\n            this.on('keydown', e => this.handleKeyPress(e));\n            this.on('mouseover', e => this.handleMouseOver(e));\n            this.on('mouseout', e => this.handleMouseOut(e));\n\n            // while the slider is active (the mouse has been pressed down and\n            // is dragging) we do not want to hide the VolumeBar\n            this.on(this.volumeControl, ['slideractive'], this.sliderActive_);\n            this.on(this.volumeControl, ['sliderinactive'], this.sliderInactive_);\n        }\n\n        /**\n         * Add vjs-slider-active class to the VolumePanel\n         *\n         * @listens VolumeControl#slideractive\n         * @private\n         */\n        sliderActive_() {\n            this.addClass('vjs-slider-active');\n        }\n\n        /**\n         * Removes vjs-slider-active class to the VolumePanel\n         *\n         * @listens VolumeControl#sliderinactive\n         * @private\n         */\n        sliderInactive_() {\n            this.removeClass('vjs-slider-active');\n        }\n\n        /**\n         * Adds vjs-hidden or vjs-mute-toggle-only to the VolumePanel\n         * depending on MuteToggle and VolumeControl state\n         *\n         * @listens Player#loadstart\n         * @private\n         */\n        volumePanelState_() {\n            // hide volume panel if neither volume control or mute toggle\n            // are displayed\n            if (this.volumeControl.hasClass('vjs-hidden') && this.muteToggle.hasClass('vjs-hidden')) {\n                this.addClass('vjs-hidden');\n            }\n\n            // if only mute toggle is visible we don't want\n            // volume panel expanding when hovered or active\n            if (this.volumeControl.hasClass('vjs-hidden') && !this.muteToggle.hasClass('vjs-hidden')) {\n                this.addClass('vjs-mute-toggle-only');\n            }\n        }\n\n        /**\n         * Create the `Component`'s DOM element\n         *\n         * @return {Element}\n         *         The element that was created.\n         */\n        createEl() {\n            let orientationClass = 'vjs-volume-panel-horizontal';\n            if (!this.options_.inline) {\n                orientationClass = 'vjs-volume-panel-vertical';\n            }\n            return super.createEl('div', {\n                className: `vjs-volume-panel vjs-control ${orientationClass}`\n            });\n        }\n\n        /**\n         * Dispose of the `volume-panel` and all child components.\n         */\n        dispose() {\n            this.handleMouseOut();\n            super.dispose();\n        }\n\n        /**\n         * Handles `keyup` events on the `VolumeControl`, looking for ESC, which closes\n         * the volume panel and sets focus on `MuteToggle`.\n         *\n         * @param {Event} event\n         *        The `keyup` event that caused this function to be called.\n         *\n         * @listens keyup\n         */\n        handleVolumeControlKeyUp(event) {\n            if (keycode.isEventKey(event, 'Esc')) {\n                this.muteToggle.focus();\n            }\n        }\n\n        /**\n         * This gets called when a `VolumePanel` gains hover via a `mouseover` event.\n         * Turns on listening for `mouseover` event. When they happen it\n         * calls `this.handleMouseOver`.\n         *\n         * @param {Event} event\n         *        The `mouseover` event that caused this function to be called.\n         *\n         * @listens mouseover\n         */\n        handleMouseOver(event) {\n            this.addClass('vjs-hover');\n            on(document, 'keyup', this.handleKeyPressHandler_);\n        }\n\n        /**\n         * This gets called when a `VolumePanel` gains hover via a `mouseout` event.\n         * Turns on listening for `mouseout` event. When they happen it\n         * calls `this.handleMouseOut`.\n         *\n         * @param {Event} event\n         *        The `mouseout` event that caused this function to be called.\n         *\n         * @listens mouseout\n         */\n        handleMouseOut(event) {\n            this.removeClass('vjs-hover');\n            off(document, 'keyup', this.handleKeyPressHandler_);\n        }\n\n        /**\n         * Handles `keyup` event on the document or `keydown` event on the `VolumePanel`,\n         * looking for ESC, which hides the `VolumeControl`.\n         *\n         * @param {Event} event\n         *        The keypress that triggered this event.\n         *\n         * @listens keydown | keyup\n         */\n        handleKeyPress(event) {\n            if (keycode.isEventKey(event, 'Esc')) {\n                this.handleMouseOut();\n            }\n        }\n    }\n\n    /**\n     * Default options for the `VolumeControl`\n     *\n     * @type {Object}\n     * @private\n     */\n    VolumePanel.prototype.options_ = {\n        children: ['muteToggle', 'volumeControl']\n    };\n    Component$1.registerComponent('VolumePanel', VolumePanel);\n\n    /**\n     * Button to skip forward a configurable amount of time\n     * through a video. Renders in the control bar.\n     *\n     * e.g. options: {controlBar: {skipButtons: forward: 5}}\n     *\n     * @extends Button\n     */\n    class SkipForward extends Button {\n        constructor(player, options) {\n            super(player, options);\n            this.validOptions = [5, 10, 30];\n            this.skipTime = this.getSkipForwardTime();\n            if (this.skipTime && this.validOptions.includes(this.skipTime)) {\n                this.controlText(this.localize('Skip forward {1} seconds', [this.skipTime]));\n                this.show();\n            } else {\n                this.hide();\n            }\n        }\n        getSkipForwardTime() {\n            const playerOptions = this.options_.playerOptions;\n            return playerOptions.controlBar && playerOptions.controlBar.skipButtons && playerOptions.controlBar.skipButtons.forward;\n        }\n        buildCSSClass() {\n            return `vjs-skip-forward-${this.getSkipForwardTime()} ${super.buildCSSClass()}`;\n        }\n\n        /**\n         * On click, skips forward in the duration/seekable range by a configurable amount of seconds.\n         * If the time left in the duration/seekable range is less than the configured 'skip forward' time,\n         * skips to end of duration/seekable range.\n         *\n         * Handle a click on a `SkipForward` button\n         *\n         * @param {EventTarget~Event} event\n         *        The `click` event that caused this function\n         *        to be called\n         */\n        handleClick(event) {\n            const currentVideoTime = this.player_.currentTime();\n            const liveTracker = this.player_.liveTracker;\n            const duration = liveTracker && liveTracker.isLive() ? liveTracker.seekableEnd() : this.player_.duration();\n            let newTime;\n            if (currentVideoTime + this.skipTime <= duration) {\n                newTime = currentVideoTime + this.skipTime;\n            } else {\n                newTime = duration;\n            }\n            this.player_.currentTime(newTime);\n        }\n\n        /**\n         * Update control text on languagechange\n         */\n        handleLanguagechange() {\n            this.controlText(this.localize('Skip forward {1} seconds', [this.skipTime]));\n        }\n    }\n    Component$1.registerComponent('SkipForward', SkipForward);\n\n    /**\n     * Button to skip backward a configurable amount of time\n     * through a video. Renders in the control bar.\n     *\n     *  * e.g. options: {controlBar: {skipButtons: backward: 5}}\n     *\n     * @extends Button\n     */\n    class SkipBackward extends Button {\n        constructor(player, options) {\n            super(player, options);\n            this.validOptions = [5, 10, 30];\n            this.skipTime = this.getSkipBackwardTime();\n            if (this.skipTime && this.validOptions.includes(this.skipTime)) {\n                this.controlText(this.localize('Skip backward {1} seconds', [this.skipTime]));\n                this.show();\n            } else {\n                this.hide();\n            }\n        }\n        getSkipBackwardTime() {\n            const playerOptions = this.options_.playerOptions;\n            return playerOptions.controlBar && playerOptions.controlBar.skipButtons && playerOptions.controlBar.skipButtons.backward;\n        }\n        buildCSSClass() {\n            return `vjs-skip-backward-${this.getSkipBackwardTime()} ${super.buildCSSClass()}`;\n        }\n\n        /**\n         * On click, skips backward in the video by a configurable amount of seconds.\n         * If the current time in the video is less than the configured 'skip backward' time,\n         * skips to beginning of video or seekable range.\n         *\n         * Handle a click on a `SkipBackward` button\n         *\n         * @param {EventTarget~Event} event\n         *        The `click` event that caused this function\n         *        to be called\n         */\n        handleClick(event) {\n            const currentVideoTime = this.player_.currentTime();\n            const liveTracker = this.player_.liveTracker;\n            const seekableStart = liveTracker && liveTracker.isLive() && liveTracker.seekableStart();\n            let newTime;\n            if (seekableStart && currentVideoTime - this.skipTime <= seekableStart) {\n                newTime = seekableStart;\n            } else if (currentVideoTime >= this.skipTime) {\n                newTime = currentVideoTime - this.skipTime;\n            } else {\n                newTime = 0;\n            }\n            this.player_.currentTime(newTime);\n        }\n\n        /**\n         * Update control text on languagechange\n         */\n        handleLanguagechange() {\n            this.controlText(this.localize('Skip backward {1} seconds', [this.skipTime]));\n        }\n    }\n    SkipBackward.prototype.controlText_ = 'Skip Backward';\n    Component$1.registerComponent('SkipBackward', SkipBackward);\n\n    /**\n     * @file menu.js\n     */\n\n    /**\n     * The Menu component is used to build popup menus, including subtitle and\n     * captions selection menus.\n     *\n     * @extends Component\n     */\n    class Menu extends Component$1 {\n        /**\n         * Create an instance of this class.\n         *\n         * @param { import('../player').default } player\n         *        the player that this component should attach to\n         *\n         * @param {Object} [options]\n         *        Object of option names and values\n         *\n         */\n        constructor(player, options) {\n            super(player, options);\n            if (options) {\n                this.menuButton_ = options.menuButton;\n            }\n            this.focusedChild_ = -1;\n            this.on('keydown', e => this.handleKeyDown(e));\n\n            // All the menu item instances share the same blur handler provided by the menu container.\n            this.boundHandleBlur_ = e => this.handleBlur(e);\n            this.boundHandleTapClick_ = e => this.handleTapClick(e);\n        }\n\n        /**\n         * Add event listeners to the {@link MenuItem}.\n         *\n         * @param {Object} component\n         *        The instance of the `MenuItem` to add listeners to.\n         *\n         */\n        addEventListenerForItem(component) {\n            if (!(component instanceof Component$1)) {\n                return;\n            }\n            this.on(component, 'blur', this.boundHandleBlur_);\n            this.on(component, ['tap', 'click'], this.boundHandleTapClick_);\n        }\n\n        /**\n         * Remove event listeners from the {@link MenuItem}.\n         *\n         * @param {Object} component\n         *        The instance of the `MenuItem` to remove listeners.\n         *\n         */\n        removeEventListenerForItem(component) {\n            if (!(component instanceof Component$1)) {\n                return;\n            }\n            this.off(component, 'blur', this.boundHandleBlur_);\n            this.off(component, ['tap', 'click'], this.boundHandleTapClick_);\n        }\n\n        /**\n         * This method will be called indirectly when the component has been added\n         * before the component adds to the new menu instance by `addItem`.\n         * In this case, the original menu instance will remove the component\n         * by calling `removeChild`.\n         *\n         * @param {Object} component\n         *        The instance of the `MenuItem`\n         */\n        removeChild(component) {\n            if (typeof component === 'string') {\n                component = this.getChild(component);\n            }\n            this.removeEventListenerForItem(component);\n            super.removeChild(component);\n        }\n\n        /**\n         * Add a {@link MenuItem} to the menu.\n         *\n         * @param {Object|string} component\n         *        The name or instance of the `MenuItem` to add.\n         *\n         */\n        addItem(component) {\n            const childComponent = this.addChild(component);\n            if (childComponent) {\n                this.addEventListenerForItem(childComponent);\n            }\n        }\n\n        /**\n         * Create the `Menu`s DOM element.\n         *\n         * @return {Element}\n         *         the element that was created\n         */\n        createEl() {\n            const contentElType = this.options_.contentElType || 'ul';\n            this.contentEl_ = createEl(contentElType, {\n                className: 'vjs-menu-content'\n            });\n            this.contentEl_.setAttribute('role', 'menu');\n            const el = super.createEl('div', {\n                append: this.contentEl_,\n                className: 'vjs-menu'\n            });\n            el.appendChild(this.contentEl_);\n\n            // Prevent clicks from bubbling up. Needed for Menu Buttons,\n            // where a click on the parent is significant\n            on(el, 'click', function (event) {\n                event.preventDefault();\n                event.stopImmediatePropagation();\n            });\n            return el;\n        }\n        dispose() {\n            this.contentEl_ = null;\n            this.boundHandleBlur_ = null;\n            this.boundHandleTapClick_ = null;\n            super.dispose();\n        }\n\n        /**\n         * Called when a `MenuItem` loses focus.\n         *\n         * @param {Event} event\n         *        The `blur` event that caused this function to be called.\n         *\n         * @listens blur\n         */\n        handleBlur(event) {\n            const relatedTarget = event.relatedTarget || document.activeElement;\n\n            // Close menu popup when a user clicks outside the menu\n            if (!this.children().some(element => {\n                return element.el() === relatedTarget;\n            })) {\n                const btn = this.menuButton_;\n                if (btn && btn.buttonPressed_ && relatedTarget !== btn.el().firstChild) {\n                    btn.unpressButton();\n                }\n            }\n        }\n\n        /**\n         * Called when a `MenuItem` gets clicked or tapped.\n         *\n         * @param {Event} event\n         *        The `click` or `tap` event that caused this function to be called.\n         *\n         * @listens click,tap\n         */\n        handleTapClick(event) {\n            // Unpress the associated MenuButton, and move focus back to it\n            if (this.menuButton_) {\n                this.menuButton_.unpressButton();\n                const childComponents = this.children();\n                if (!Array.isArray(childComponents)) {\n                    return;\n                }\n                const foundComponent = childComponents.filter(component => component.el() === event.target)[0];\n                if (!foundComponent) {\n                    return;\n                }\n\n                // don't focus menu button if item is a caption settings item\n                // because focus will move elsewhere\n                if (foundComponent.name() !== 'CaptionSettingsMenuItem') {\n                    this.menuButton_.focus();\n                }\n            }\n        }\n\n        /**\n         * Handle a `keydown` event on this menu. This listener is added in the constructor.\n         *\n         * @param {Event} event\n         *        A `keydown` event that happened on the menu.\n         *\n         * @listens keydown\n         */\n        handleKeyDown(event) {\n            // Left and Down Arrows\n            if (keycode.isEventKey(event, 'Left') || keycode.isEventKey(event, 'Down')) {\n                event.preventDefault();\n                event.stopPropagation();\n                this.stepForward();\n\n                // Up and Right Arrows\n            } else if (keycode.isEventKey(event, 'Right') || keycode.isEventKey(event, 'Up')) {\n                event.preventDefault();\n                event.stopPropagation();\n                this.stepBack();\n            }\n        }\n\n        /**\n         * Move to next (lower) menu item for keyboard users.\n         */\n        stepForward() {\n            let stepChild = 0;\n            if (this.focusedChild_ !== undefined) {\n                stepChild = this.focusedChild_ + 1;\n            }\n            this.focus(stepChild);\n        }\n\n        /**\n         * Move to previous (higher) menu item for keyboard users.\n         */\n        stepBack() {\n            let stepChild = 0;\n            if (this.focusedChild_ !== undefined) {\n                stepChild = this.focusedChild_ - 1;\n            }\n            this.focus(stepChild);\n        }\n\n        /**\n         * Set focus on a {@link MenuItem} in the `Menu`.\n         *\n         * @param {Object|string} [item=0]\n         *        Index of child item set focus on.\n         */\n        focus(item = 0) {\n            const children = this.children().slice();\n            const haveTitle = children.length && children[0].hasClass('vjs-menu-title');\n            if (haveTitle) {\n                children.shift();\n            }\n            if (children.length > 0) {\n                if (item < 0) {\n                    item = 0;\n                } else if (item >= children.length) {\n                    item = children.length - 1;\n                }\n                this.focusedChild_ = item;\n                children[item].el_.focus();\n            }\n        }\n    }\n    Component$1.registerComponent('Menu', Menu);\n\n    /**\n     * @file menu-button.js\n     */\n\n    /**\n     * A `MenuButton` class for any popup {@link Menu}.\n     *\n     * @extends Component\n     */\n    class MenuButton extends Component$1 {\n        /**\n         * Creates an instance of this class.\n         *\n         * @param { import('../player').default } player\n         *        The `Player` that this class should be attached to.\n         *\n         * @param {Object} [options={}]\n         *        The key/value store of player options.\n         */\n        constructor(player, options = {}) {\n            super(player, options);\n            this.menuButton_ = new Button(player, options);\n            this.menuButton_.controlText(this.controlText_);\n            this.menuButton_.el_.setAttribute('aria-haspopup', 'true');\n\n            // Add buildCSSClass values to the button, not the wrapper\n            const buttonClass = Button.prototype.buildCSSClass();\n            this.menuButton_.el_.className = this.buildCSSClass() + ' ' + buttonClass;\n            this.menuButton_.removeClass('vjs-control');\n            this.addChild(this.menuButton_);\n            this.update();\n            this.enabled_ = true;\n            const handleClick = e => this.handleClick(e);\n            this.handleMenuKeyUp_ = e => this.handleMenuKeyUp(e);\n            this.on(this.menuButton_, 'tap', handleClick);\n            this.on(this.menuButton_, 'click', handleClick);\n            this.on(this.menuButton_, 'keydown', e => this.handleKeyDown(e));\n            this.on(this.menuButton_, 'mouseenter', () => {\n                this.addClass('vjs-hover');\n                this.menu.show();\n                on(document, 'keyup', this.handleMenuKeyUp_);\n            });\n            this.on('mouseleave', e => this.handleMouseLeave(e));\n            this.on('keydown', e => this.handleSubmenuKeyDown(e));\n        }\n\n        /**\n         * Update the menu based on the current state of its items.\n         */\n        update() {\n            const menu = this.createMenu();\n            if (this.menu) {\n                this.menu.dispose();\n                this.removeChild(this.menu);\n            }\n            this.menu = menu;\n            this.addChild(menu);\n\n            /**\n             * Track the state of the menu button\n             *\n             * @type {Boolean}\n             * @private\n             */\n            this.buttonPressed_ = false;\n            this.menuButton_.el_.setAttribute('aria-expanded', 'false');\n            if (this.items && this.items.length <= this.hideThreshold_) {\n                this.hide();\n                this.menu.contentEl_.removeAttribute('role');\n            } else {\n                this.show();\n                this.menu.contentEl_.setAttribute('role', 'menu');\n            }\n        }\n\n        /**\n         * Create the menu and add all items to it.\n         *\n         * @return {Menu}\n         *         The constructed menu\n         */\n        createMenu() {\n            const menu = new Menu(this.player_, {\n                menuButton: this\n            });\n\n            /**\n             * Hide the menu if the number of items is less than or equal to this threshold. This defaults\n             * to 0 and whenever we add items which can be hidden to the menu we'll increment it. We list\n             * it here because every time we run `createMenu` we need to reset the value.\n             *\n             * @protected\n             * @type {Number}\n             */\n            this.hideThreshold_ = 0;\n\n            // Add a title list item to the top\n            if (this.options_.title) {\n                const titleEl = createEl('li', {\n                    className: 'vjs-menu-title',\n                    textContent: toTitleCase$1(this.options_.title),\n                    tabIndex: -1\n                });\n                const titleComponent = new Component$1(this.player_, {\n                    el: titleEl\n                });\n                menu.addItem(titleComponent);\n            }\n            this.items = this.createItems();\n            if (this.items) {\n                // Add menu items to the menu\n                for (let i = 0; i < this.items.length; i++) {\n                    menu.addItem(this.items[i]);\n                }\n            }\n            return menu;\n        }\n\n        /**\n         * Create the list of menu items. Specific to each subclass.\n         *\n         * @abstract\n         */\n        createItems() {}\n\n        /**\n         * Create the `MenuButtons`s DOM element.\n         *\n         * @return {Element}\n         *         The element that gets created.\n         */\n        createEl() {\n            return super.createEl('div', {\n                className: this.buildWrapperCSSClass()\n            }, {});\n        }\n\n        /**\n         * Allow sub components to stack CSS class names for the wrapper element\n         *\n         * @return {string}\n         *         The constructed wrapper DOM `className`\n         */\n        buildWrapperCSSClass() {\n            let menuButtonClass = 'vjs-menu-button';\n\n            // If the inline option is passed, we want to use different styles altogether.\n            if (this.options_.inline === true) {\n                menuButtonClass += '-inline';\n            } else {\n                menuButtonClass += '-popup';\n            }\n\n            // TODO: Fix the CSS so that this isn't necessary\n            const buttonClass = Button.prototype.buildCSSClass();\n            return `vjs-menu-button ${menuButtonClass} ${buttonClass} ${super.buildCSSClass()}`;\n        }\n\n        /**\n         * Builds the default DOM `className`.\n         *\n         * @return {string}\n         *         The DOM `className` for this object.\n         */\n        buildCSSClass() {\n            let menuButtonClass = 'vjs-menu-button';\n\n            // If the inline option is passed, we want to use different styles altogether.\n            if (this.options_.inline === true) {\n                menuButtonClass += '-inline';\n            } else {\n                menuButtonClass += '-popup';\n            }\n            return `vjs-menu-button ${menuButtonClass} ${super.buildCSSClass()}`;\n        }\n\n        /**\n         * Get or set the localized control text that will be used for accessibility.\n         *\n         * > NOTE: This will come from the internal `menuButton_` element.\n         *\n         * @param {string} [text]\n         *        Control text for element.\n         *\n         * @param {Element} [el=this.menuButton_.el()]\n         *        Element to set the title on.\n         *\n         * @return {string}\n         *         - The control text when getting\n         */\n        controlText(text, el = this.menuButton_.el()) {\n            return this.menuButton_.controlText(text, el);\n        }\n\n        /**\n         * Dispose of the `menu-button` and all child components.\n         */\n        dispose() {\n            this.handleMouseLeave();\n            super.dispose();\n        }\n\n        /**\n         * Handle a click on a `MenuButton`.\n         * See {@link ClickableComponent#handleClick} for instances where this is called.\n         *\n         * @param {Event} event\n         *        The `keydown`, `tap`, or `click` event that caused this function to be\n         *        called.\n         *\n         * @listens tap\n         * @listens click\n         */\n        handleClick(event) {\n            if (this.buttonPressed_) {\n                this.unpressButton();\n            } else {\n                this.pressButton();\n            }\n        }\n\n        /**\n         * Handle `mouseleave` for `MenuButton`.\n         *\n         * @param {Event} event\n         *        The `mouseleave` event that caused this function to be called.\n         *\n         * @listens mouseleave\n         */\n        handleMouseLeave(event) {\n            this.removeClass('vjs-hover');\n            off(document, 'keyup', this.handleMenuKeyUp_);\n        }\n\n        /**\n         * Set the focus to the actual button, not to this element\n         */\n        focus() {\n            this.menuButton_.focus();\n        }\n\n        /**\n         * Remove the focus from the actual button, not this element\n         */\n        blur() {\n            this.menuButton_.blur();\n        }\n\n        /**\n         * Handle tab, escape, down arrow, and up arrow keys for `MenuButton`. See\n         * {@link ClickableComponent#handleKeyDown} for instances where this is called.\n         *\n         * @param {Event} event\n         *        The `keydown` event that caused this function to be called.\n         *\n         * @listens keydown\n         */\n        handleKeyDown(event) {\n            // Escape or Tab unpress the 'button'\n            if (keycode.isEventKey(event, 'Esc') || keycode.isEventKey(event, 'Tab')) {\n                if (this.buttonPressed_) {\n                    this.unpressButton();\n                }\n\n                // Don't preventDefault for Tab key - we still want to lose focus\n                if (!keycode.isEventKey(event, 'Tab')) {\n                    event.preventDefault();\n                    // Set focus back to the menu button's button\n                    this.menuButton_.focus();\n                }\n                // Up Arrow or Down Arrow also 'press' the button to open the menu\n            } else if (keycode.isEventKey(event, 'Up') || keycode.isEventKey(event, 'Down')) {\n                if (!this.buttonPressed_) {\n                    event.preventDefault();\n                    this.pressButton();\n                }\n            }\n        }\n\n        /**\n         * Handle a `keyup` event on a `MenuButton`. The listener for this is added in\n         * the constructor.\n         *\n         * @param {Event} event\n         *        Key press event\n         *\n         * @listens keyup\n         */\n        handleMenuKeyUp(event) {\n            // Escape hides popup menu\n            if (keycode.isEventKey(event, 'Esc') || keycode.isEventKey(event, 'Tab')) {\n                this.removeClass('vjs-hover');\n            }\n        }\n\n        /**\n         * This method name now delegates to `handleSubmenuKeyDown`. This means\n         * anyone calling `handleSubmenuKeyPress` will not see their method calls\n         * stop working.\n         *\n         * @param {Event} event\n         *        The event that caused this function to be called.\n         */\n        handleSubmenuKeyPress(event) {\n            this.handleSubmenuKeyDown(event);\n        }\n\n        /**\n         * Handle a `keydown` event on a sub-menu. The listener for this is added in\n         * the constructor.\n         *\n         * @param {Event} event\n         *        Key press event\n         *\n         * @listens keydown\n         */\n        handleSubmenuKeyDown(event) {\n            // Escape or Tab unpress the 'button'\n            if (keycode.isEventKey(event, 'Esc') || keycode.isEventKey(event, 'Tab')) {\n                if (this.buttonPressed_) {\n                    this.unpressButton();\n                }\n                // Don't preventDefault for Tab key - we still want to lose focus\n                if (!keycode.isEventKey(event, 'Tab')) {\n                    event.preventDefault();\n                    // Set focus back to the menu button's button\n                    this.menuButton_.focus();\n                }\n            }\n        }\n\n        /**\n         * Put the current `MenuButton` into a pressed state.\n         */\n        pressButton() {\n            if (this.enabled_) {\n                this.buttonPressed_ = true;\n                this.menu.show();\n                this.menu.lockShowing();\n                this.menuButton_.el_.setAttribute('aria-expanded', 'true');\n\n                // set the focus into the submenu, except on iOS where it is resulting in\n                // undesired scrolling behavior when the player is in an iframe\n                if (IS_IOS && isInFrame()) {\n                    // Return early so that the menu isn't focused\n                    return;\n                }\n                this.menu.focus();\n            }\n        }\n\n        /**\n         * Take the current `MenuButton` out of a pressed state.\n         */\n        unpressButton() {\n            if (this.enabled_) {\n                this.buttonPressed_ = false;\n                this.menu.unlockShowing();\n                this.menu.hide();\n                this.menuButton_.el_.setAttribute('aria-expanded', 'false');\n            }\n        }\n\n        /**\n         * Disable the `MenuButton`. Don't allow it to be clicked.\n         */\n        disable() {\n            this.unpressButton();\n            this.enabled_ = false;\n            this.addClass('vjs-disabled');\n            this.menuButton_.disable();\n        }\n\n        /**\n         * Enable the `MenuButton`. Allow it to be clicked.\n         */\n        enable() {\n            this.enabled_ = true;\n            this.removeClass('vjs-disabled');\n            this.menuButton_.enable();\n        }\n    }\n    Component$1.registerComponent('MenuButton', MenuButton);\n\n    /**\n     * @file track-button.js\n     */\n\n    /**\n     * The base class for buttons that toggle specific  track types (e.g. subtitles).\n     *\n     * @extends MenuButton\n     */\n    class TrackButton extends MenuButton {\n        /**\n         * Creates an instance of this class.\n         *\n         * @param { import('./player').default } player\n         *        The `Player` that this class should be attached to.\n         *\n         * @param {Object} [options]\n         *        The key/value store of player options.\n         */\n        constructor(player, options) {\n            const tracks = options.tracks;\n            super(player, options);\n            if (this.items.length <= 1) {\n                this.hide();\n            }\n            if (!tracks) {\n                return;\n            }\n            const updateHandler = bind_(this, this.update);\n            tracks.addEventListener('removetrack', updateHandler);\n            tracks.addEventListener('addtrack', updateHandler);\n            tracks.addEventListener('labelchange', updateHandler);\n            this.player_.on('ready', updateHandler);\n            this.player_.on('dispose', function () {\n                tracks.removeEventListener('removetrack', updateHandler);\n                tracks.removeEventListener('addtrack', updateHandler);\n                tracks.removeEventListener('labelchange', updateHandler);\n            });\n        }\n    }\n    Component$1.registerComponent('TrackButton', TrackButton);\n\n    /**\n     * @file menu-keys.js\n     */\n\n    /**\n     * All keys used for operation of a menu (`MenuButton`, `Menu`, and `MenuItem`)\n     * Note that 'Enter' and 'Space' are not included here (otherwise they would\n     * prevent the `MenuButton` and `MenuItem` from being keyboard-clickable)\n     *\n     * @typedef MenuKeys\n     * @array\n     */\n    const MenuKeys = ['Tab', 'Esc', 'Up', 'Down', 'Right', 'Left'];\n\n    /**\n     * @file menu-item.js\n     */\n\n    /**\n     * The component for a menu item. `<li>`\n     *\n     * @extends ClickableComponent\n     */\n    class MenuItem extends ClickableComponent {\n        /**\n         * Creates an instance of the this class.\n         *\n         * @param { import('../player').default } player\n         *        The `Player` that this class should be attached to.\n         *\n         * @param {Object} [options={}]\n         *        The key/value store of player options.\n         *\n         */\n        constructor(player, options) {\n            super(player, options);\n            this.selectable = options.selectable;\n            this.isSelected_ = options.selected || false;\n            this.multiSelectable = options.multiSelectable;\n            this.selected(this.isSelected_);\n            if (this.selectable) {\n                if (this.multiSelectable) {\n                    this.el_.setAttribute('role', 'menuitemcheckbox');\n                } else {\n                    this.el_.setAttribute('role', 'menuitemradio');\n                }\n            } else {\n                this.el_.setAttribute('role', 'menuitem');\n            }\n        }\n\n        /**\n         * Create the `MenuItem's DOM element\n         *\n         * @param {string} [type=li]\n         *        Element's node type, not actually used, always set to `li`.\n         *\n         * @param {Object} [props={}]\n         *        An object of properties that should be set on the element\n         *\n         * @param {Object} [attrs={}]\n         *        An object of attributes that should be set on the element\n         *\n         * @return {Element}\n         *         The element that gets created.\n         */\n        createEl(type, props, attrs) {\n            // The control is textual, not just an icon\n            this.nonIconControl = true;\n            const el = super.createEl('li', Object.assign({\n                className: 'vjs-menu-item',\n                tabIndex: -1\n            }, props), attrs);\n\n            // swap icon with menu item text.\n            el.replaceChild(createEl('span', {\n                className: 'vjs-menu-item-text',\n                textContent: this.localize(this.options_.label)\n            }), el.querySelector('.vjs-icon-placeholder'));\n            return el;\n        }\n\n        /**\n         * Ignore keys which are used by the menu, but pass any other ones up. See\n         * {@link ClickableComponent#handleKeyDown} for instances where this is called.\n         *\n         * @param {Event} event\n         *        The `keydown` event that caused this function to be called.\n         *\n         * @listens keydown\n         */\n        handleKeyDown(event) {\n            if (!MenuKeys.some(key => keycode.isEventKey(event, key))) {\n                // Pass keydown handling up for unused keys\n                super.handleKeyDown(event);\n            }\n        }\n\n        /**\n         * Any click on a `MenuItem` puts it into the selected state.\n         * See {@link ClickableComponent#handleClick} for instances where this is called.\n         *\n         * @param {Event} event\n         *        The `keydown`, `tap`, or `click` event that caused this function to be\n         *        called.\n         *\n         * @listens tap\n         * @listens click\n         */\n        handleClick(event) {\n            this.selected(true);\n        }\n\n        /**\n         * Set the state for this menu item as selected or not.\n         *\n         * @param {boolean} selected\n         *        if the menu item is selected or not\n         */\n        selected(selected) {\n            if (this.selectable) {\n                if (selected) {\n                    this.addClass('vjs-selected');\n                    this.el_.setAttribute('aria-checked', 'true');\n                    // aria-checked isn't fully supported by browsers/screen readers,\n                    // so indicate selected state to screen reader in the control text.\n                    this.controlText(', selected');\n                    this.isSelected_ = true;\n                } else {\n                    this.removeClass('vjs-selected');\n                    this.el_.setAttribute('aria-checked', 'false');\n                    // Indicate un-selected state to screen reader\n                    this.controlText('');\n                    this.isSelected_ = false;\n                }\n            }\n        }\n    }\n    Component$1.registerComponent('MenuItem', MenuItem);\n\n    /**\n     * @file text-track-menu-item.js\n     */\n\n    /**\n     * The specific menu item type for selecting a language within a text track kind\n     *\n     * @extends MenuItem\n     */\n    class TextTrackMenuItem extends MenuItem {\n        /**\n         * Creates an instance of this class.\n         *\n         * @param { import('../../player').default } player\n         *        The `Player` that this class should be attached to.\n         *\n         * @param {Object} [options]\n         *        The key/value store of player options.\n         */\n        constructor(player, options) {\n            const track = options.track;\n            const tracks = player.textTracks();\n\n            // Modify options for parent MenuItem class's init.\n            options.label = track.label || track.language || 'Unknown';\n            options.selected = track.mode === 'showing';\n            super(player, options);\n            this.track = track;\n            // Determine the relevant kind(s) of tracks for this component and filter\n            // out empty kinds.\n            this.kinds = (options.kinds || [options.kind || this.track.kind]).filter(Boolean);\n            const changeHandler = (...args) => {\n                this.handleTracksChange.apply(this, args);\n            };\n            const selectedLanguageChangeHandler = (...args) => {\n                this.handleSelectedLanguageChange.apply(this, args);\n            };\n            player.on(['loadstart', 'texttrackchange'], changeHandler);\n            tracks.addEventListener('change', changeHandler);\n            tracks.addEventListener('selectedlanguagechange', selectedLanguageChangeHandler);\n            this.on('dispose', function () {\n                player.off(['loadstart', 'texttrackchange'], changeHandler);\n                tracks.removeEventListener('change', changeHandler);\n                tracks.removeEventListener('selectedlanguagechange', selectedLanguageChangeHandler);\n            });\n\n            // iOS7 doesn't dispatch change events to TextTrackLists when an\n            // associated track's mode changes. Without something like\n            // Object.observe() (also not present on iOS7), it's not\n            // possible to detect changes to the mode attribute and polyfill\n            // the change event. As a poor substitute, we manually dispatch\n            // change events whenever the controls modify the mode.\n            if (tracks.onchange === undefined) {\n                let event;\n                this.on(['tap', 'click'], function () {\n                    if (typeof window.Event !== 'object') {\n                        // Android 2.3 throws an Illegal Constructor error for window.Event\n                        try {\n                            event = new window.Event('change');\n                        } catch (err) {\n                            // continue regardless of error\n                        }\n                    }\n                    if (!event) {\n                        event = document.createEvent('Event');\n                        event.initEvent('change', true, true);\n                    }\n                    tracks.dispatchEvent(event);\n                });\n            }\n\n            // set the default state based on current tracks\n            this.handleTracksChange();\n        }\n\n        /**\n         * This gets called when an `TextTrackMenuItem` is \"clicked\". See\n         * {@link ClickableComponent} for more detailed information on what a click can be.\n         *\n         * @param {Event} event\n         *        The `keydown`, `tap`, or `click` event that caused this function to be\n         *        called.\n         *\n         * @listens tap\n         * @listens click\n         */\n        handleClick(event) {\n            const referenceTrack = this.track;\n            const tracks = this.player_.textTracks();\n            super.handleClick(event);\n            if (!tracks) {\n                return;\n            }\n            for (let i = 0; i < tracks.length; i++) {\n                const track = tracks[i];\n\n                // If the track from the text tracks list is not of the right kind,\n                // skip it. We do not want to affect tracks of incompatible kind(s).\n                if (this.kinds.indexOf(track.kind) === -1) {\n                    continue;\n                }\n\n                // If this text track is the component's track and it is not showing,\n                // set it to showing.\n                if (track === referenceTrack) {\n                    if (track.mode !== 'showing') {\n                        track.mode = 'showing';\n                    }\n\n                    // If this text track is not the component's track and it is not\n                    // disabled, set it to disabled.\n                } else if (track.mode !== 'disabled') {\n                    track.mode = 'disabled';\n                }\n            }\n        }\n\n        /**\n         * Handle text track list change\n         *\n         * @param {Event} event\n         *        The `change` event that caused this function to be called.\n         *\n         * @listens TextTrackList#change\n         */\n        handleTracksChange(event) {\n            const shouldBeSelected = this.track.mode === 'showing';\n\n            // Prevent redundant selected() calls because they may cause\n            // screen readers to read the appended control text unnecessarily\n            if (shouldBeSelected !== this.isSelected_) {\n                this.selected(shouldBeSelected);\n            }\n        }\n        handleSelectedLanguageChange(event) {\n            if (this.track.mode === 'showing') {\n                const selectedLanguage = this.player_.cache_.selectedLanguage;\n\n                // Don't replace the kind of track across the same language\n                if (selectedLanguage && selectedLanguage.enabled && selectedLanguage.language === this.track.language && selectedLanguage.kind !== this.track.kind) {\n                    return;\n                }\n                this.player_.cache_.selectedLanguage = {\n                    enabled: true,\n                    language: this.track.language,\n                    kind: this.track.kind\n                };\n            }\n        }\n        dispose() {\n            // remove reference to track object on dispose\n            this.track = null;\n            super.dispose();\n        }\n    }\n    Component$1.registerComponent('TextTrackMenuItem', TextTrackMenuItem);\n\n    /**\n     * @file off-text-track-menu-item.js\n     */\n\n    /**\n     * A special menu item for turning of a specific type of text track\n     *\n     * @extends TextTrackMenuItem\n     */\n    class OffTextTrackMenuItem extends TextTrackMenuItem {\n        /**\n         * Creates an instance of this class.\n         *\n         * @param { import('../../player').default } player\n         *        The `Player` that this class should be attached to.\n         *\n         * @param {Object} [options]\n         *        The key/value store of player options.\n         */\n        constructor(player, options) {\n            // Create pseudo track info\n            // Requires options['kind']\n            options.track = {\n                player,\n                // it is no longer necessary to store `kind` or `kinds` on the track itself\n                // since they are now stored in the `kinds` property of all instances of\n                // TextTrackMenuItem, but this will remain for backwards compatibility\n                kind: options.kind,\n                kinds: options.kinds,\n                default: false,\n                mode: 'disabled'\n            };\n            if (!options.kinds) {\n                options.kinds = [options.kind];\n            }\n            if (options.label) {\n                options.track.label = options.label;\n            } else {\n                options.track.label = options.kinds.join(' and ') + ' off';\n            }\n\n            // MenuItem is selectable\n            options.selectable = true;\n            // MenuItem is NOT multiSelectable (i.e. only one can be marked \"selected\" at a time)\n            options.multiSelectable = false;\n            super(player, options);\n        }\n\n        /**\n         * Handle text track change\n         *\n         * @param {Event} event\n         *        The event that caused this function to run\n         */\n        handleTracksChange(event) {\n            const tracks = this.player().textTracks();\n            let shouldBeSelected = true;\n            for (let i = 0, l = tracks.length; i < l; i++) {\n                const track = tracks[i];\n                if (this.options_.kinds.indexOf(track.kind) > -1 && track.mode === 'showing') {\n                    shouldBeSelected = false;\n                    break;\n                }\n            }\n\n            // Prevent redundant selected() calls because they may cause\n            // screen readers to read the appended control text unnecessarily\n            if (shouldBeSelected !== this.isSelected_) {\n                this.selected(shouldBeSelected);\n            }\n        }\n        handleSelectedLanguageChange(event) {\n            const tracks = this.player().textTracks();\n            let allHidden = true;\n            for (let i = 0, l = tracks.length; i < l; i++) {\n                const track = tracks[i];\n                if (['captions', 'descriptions', 'subtitles'].indexOf(track.kind) > -1 && track.mode === 'showing') {\n                    allHidden = false;\n                    break;\n                }\n            }\n            if (allHidden) {\n                this.player_.cache_.selectedLanguage = {\n                    enabled: false\n                };\n            }\n        }\n\n        /**\n         * Update control text and label on languagechange\n         */\n        handleLanguagechange() {\n            this.$('.vjs-menu-item-text').textContent = this.player_.localize(this.options_.label);\n            super.handleLanguagechange();\n        }\n    }\n    Component$1.registerComponent('OffTextTrackMenuItem', OffTextTrackMenuItem);\n\n    /**\n     * @file text-track-button.js\n     */\n\n    /**\n     * The base class for buttons that toggle specific text track types (e.g. subtitles)\n     *\n     * @extends MenuButton\n     */\n    class TextTrackButton extends TrackButton {\n        /**\n         * Creates an instance of this class.\n         *\n         * @param { import('../../player').default } player\n         *        The `Player` that this class should be attached to.\n         *\n         * @param {Object} [options={}]\n         *        The key/value store of player options.\n         */\n        constructor(player, options = {}) {\n            options.tracks = player.textTracks();\n            super(player, options);\n        }\n\n        /**\n         * Create a menu item for each text track\n         *\n         * @param {TextTrackMenuItem[]} [items=[]]\n         *        Existing array of items to use during creation\n         *\n         * @return {TextTrackMenuItem[]}\n         *         Array of menu items that were created\n         */\n        createItems(items = [], TrackMenuItem = TextTrackMenuItem) {\n            // Label is an override for the [track] off label\n            // USed to localise captions/subtitles\n            let label;\n            if (this.label_) {\n                label = `${this.label_} off`;\n            }\n            // Add an OFF menu item to turn all tracks off\n            items.push(new OffTextTrackMenuItem(this.player_, {\n                kinds: this.kinds_,\n                kind: this.kind_,\n                label\n            }));\n            this.hideThreshold_ += 1;\n            const tracks = this.player_.textTracks();\n            if (!Array.isArray(this.kinds_)) {\n                this.kinds_ = [this.kind_];\n            }\n            for (let i = 0; i < tracks.length; i++) {\n                const track = tracks[i];\n\n                // only add tracks that are of an appropriate kind and have a label\n                if (this.kinds_.indexOf(track.kind) > -1) {\n                    const item = new TrackMenuItem(this.player_, {\n                        track,\n                        kinds: this.kinds_,\n                        kind: this.kind_,\n                        // MenuItem is selectable\n                        selectable: true,\n                        // MenuItem is NOT multiSelectable (i.e. only one can be marked \"selected\" at a time)\n                        multiSelectable: false\n                    });\n                    item.addClass(`vjs-${track.kind}-menu-item`);\n                    items.push(item);\n                }\n            }\n            return items;\n        }\n    }\n    Component$1.registerComponent('TextTrackButton', TextTrackButton);\n\n    /**\n     * @file chapters-track-menu-item.js\n     */\n\n    /**\n     * The chapter track menu item\n     *\n     * @extends MenuItem\n     */\n    class ChaptersTrackMenuItem extends MenuItem {\n        /**\n         * Creates an instance of this class.\n         *\n         * @param { import('../../player').default } player\n         *        The `Player` that this class should be attached to.\n         *\n         * @param {Object} [options]\n         *        The key/value store of player options.\n         */\n        constructor(player, options) {\n            const track = options.track;\n            const cue = options.cue;\n            const currentTime = player.currentTime();\n\n            // Modify options for parent MenuItem class's init.\n            options.selectable = true;\n            options.multiSelectable = false;\n            options.label = cue.text;\n            options.selected = cue.startTime <= currentTime && currentTime < cue.endTime;\n            super(player, options);\n            this.track = track;\n            this.cue = cue;\n        }\n\n        /**\n         * This gets called when an `ChaptersTrackMenuItem` is \"clicked\". See\n         * {@link ClickableComponent} for more detailed information on what a click can be.\n         *\n         * @param {Event} [event]\n         *        The `keydown`, `tap`, or `click` event that caused this function to be\n         *        called.\n         *\n         * @listens tap\n         * @listens click\n         */\n        handleClick(event) {\n            super.handleClick();\n            this.player_.currentTime(this.cue.startTime);\n        }\n    }\n    Component$1.registerComponent('ChaptersTrackMenuItem', ChaptersTrackMenuItem);\n\n    /**\n     * @file chapters-button.js\n     */\n\n    /**\n     * The button component for toggling and selecting chapters\n     * Chapters act much differently than other text tracks\n     * Cues are navigation vs. other tracks of alternative languages\n     *\n     * @extends TextTrackButton\n     */\n    class ChaptersButton extends TextTrackButton {\n        /**\n         * Creates an instance of this class.\n         *\n         * @param { import('../../player').default } player\n         *        The `Player` that this class should be attached to.\n         *\n         * @param {Object} [options]\n         *        The key/value store of player options.\n         *\n         * @param {Function} [ready]\n         *        The function to call when this function is ready.\n         */\n        constructor(player, options, ready) {\n            super(player, options, ready);\n            this.selectCurrentItem_ = () => {\n                this.items.forEach(item => {\n                    item.selected(this.track_.activeCues[0] === item.cue);\n                });\n            };\n        }\n\n        /**\n         * Builds the default DOM `className`.\n         *\n         * @return {string}\n         *         The DOM `className` for this object.\n         */\n        buildCSSClass() {\n            return `vjs-chapters-button ${super.buildCSSClass()}`;\n        }\n        buildWrapperCSSClass() {\n            return `vjs-chapters-button ${super.buildWrapperCSSClass()}`;\n        }\n\n        /**\n         * Update the menu based on the current state of its items.\n         *\n         * @param {Event} [event]\n         *        An event that triggered this function to run.\n         *\n         * @listens TextTrackList#addtrack\n         * @listens TextTrackList#removetrack\n         * @listens TextTrackList#change\n         */\n        update(event) {\n            if (event && event.track && event.track.kind !== 'chapters') {\n                return;\n            }\n            const track = this.findChaptersTrack();\n            if (track !== this.track_) {\n                this.setTrack(track);\n                super.update();\n            } else if (!this.items || track && track.cues && track.cues.length !== this.items.length) {\n                // Update the menu initially or if the number of cues has changed since set\n                super.update();\n            }\n        }\n\n        /**\n         * Set the currently selected track for the chapters button.\n         *\n         * @param {TextTrack} track\n         *        The new track to select. Nothing will change if this is the currently selected\n         *        track.\n         */\n        setTrack(track) {\n            if (this.track_ === track) {\n                return;\n            }\n            if (!this.updateHandler_) {\n                this.updateHandler_ = this.update.bind(this);\n            }\n\n            // here this.track_ refers to the old track instance\n            if (this.track_) {\n                const remoteTextTrackEl = this.player_.remoteTextTrackEls().getTrackElementByTrack_(this.track_);\n                if (remoteTextTrackEl) {\n                    remoteTextTrackEl.removeEventListener('load', this.updateHandler_);\n                }\n                this.track_.removeEventListener('cuechange', this.selectCurrentItem_);\n                this.track_ = null;\n            }\n            this.track_ = track;\n\n            // here this.track_ refers to the new track instance\n            if (this.track_) {\n                this.track_.mode = 'hidden';\n                const remoteTextTrackEl = this.player_.remoteTextTrackEls().getTrackElementByTrack_(this.track_);\n                if (remoteTextTrackEl) {\n                    remoteTextTrackEl.addEventListener('load', this.updateHandler_);\n                }\n                this.track_.addEventListener('cuechange', this.selectCurrentItem_);\n            }\n        }\n\n        /**\n         * Find the track object that is currently in use by this ChaptersButton\n         *\n         * @return {TextTrack|undefined}\n         *         The current track or undefined if none was found.\n         */\n        findChaptersTrack() {\n            const tracks = this.player_.textTracks() || [];\n            for (let i = tracks.length - 1; i >= 0; i--) {\n                // We will always choose the last track as our chaptersTrack\n                const track = tracks[i];\n                if (track.kind === this.kind_) {\n                    return track;\n                }\n            }\n        }\n\n        /**\n         * Get the caption for the ChaptersButton based on the track label. This will also\n         * use the current tracks localized kind as a fallback if a label does not exist.\n         *\n         * @return {string}\n         *         The tracks current label or the localized track kind.\n         */\n        getMenuCaption() {\n            if (this.track_ && this.track_.label) {\n                return this.track_.label;\n            }\n            return this.localize(toTitleCase$1(this.kind_));\n        }\n\n        /**\n         * Create menu from chapter track\n         *\n         * @return { import('../../menu/menu').default }\n         *         New menu for the chapter buttons\n         */\n        createMenu() {\n            this.options_.title = this.getMenuCaption();\n            return super.createMenu();\n        }\n\n        /**\n         * Create a menu item for each text track\n         *\n         * @return  { import('./text-track-menu-item').default[] }\n         *         Array of menu items\n         */\n        createItems() {\n            const items = [];\n            if (!this.track_) {\n                return items;\n            }\n            const cues = this.track_.cues;\n            if (!cues) {\n                return items;\n            }\n            for (let i = 0, l = cues.length; i < l; i++) {\n                const cue = cues[i];\n                const mi = new ChaptersTrackMenuItem(this.player_, {\n                    track: this.track_,\n                    cue\n                });\n                items.push(mi);\n            }\n            return items;\n        }\n    }\n\n    /**\n     * `kind` of TextTrack to look for to associate it with this menu.\n     *\n     * @type {string}\n     * @private\n     */\n    ChaptersButton.prototype.kind_ = 'chapters';\n\n    /**\n     * The text that should display over the `ChaptersButton`s controls. Added for localization.\n     *\n     * @type {string}\n     * @protected\n     */\n    ChaptersButton.prototype.controlText_ = 'Chapters';\n    Component$1.registerComponent('ChaptersButton', ChaptersButton);\n\n    /**\n     * @file descriptions-button.js\n     */\n\n    /**\n     * The button component for toggling and selecting descriptions\n     *\n     * @extends TextTrackButton\n     */\n    class DescriptionsButton extends TextTrackButton {\n        /**\n         * Creates an instance of this class.\n         *\n         * @param { import('../../player').default } player\n         *        The `Player` that this class should be attached to.\n         *\n         * @param {Object} [options]\n         *        The key/value store of player options.\n         *\n         * @param {Function} [ready]\n         *        The function to call when this component is ready.\n         */\n        constructor(player, options, ready) {\n            super(player, options, ready);\n            const tracks = player.textTracks();\n            const changeHandler = bind_(this, this.handleTracksChange);\n            tracks.addEventListener('change', changeHandler);\n            this.on('dispose', function () {\n                tracks.removeEventListener('change', changeHandler);\n            });\n        }\n\n        /**\n         * Handle text track change\n         *\n         * @param {Event} event\n         *        The event that caused this function to run\n         *\n         * @listens TextTrackList#change\n         */\n        handleTracksChange(event) {\n            const tracks = this.player().textTracks();\n            let disabled = false;\n\n            // Check whether a track of a different kind is showing\n            for (let i = 0, l = tracks.length; i < l; i++) {\n                const track = tracks[i];\n                if (track.kind !== this.kind_ && track.mode === 'showing') {\n                    disabled = true;\n                    break;\n                }\n            }\n\n            // If another track is showing, disable this menu button\n            if (disabled) {\n                this.disable();\n            } else {\n                this.enable();\n            }\n        }\n\n        /**\n         * Builds the default DOM `className`.\n         *\n         * @return {string}\n         *         The DOM `className` for this object.\n         */\n        buildCSSClass() {\n            return `vjs-descriptions-button ${super.buildCSSClass()}`;\n        }\n        buildWrapperCSSClass() {\n            return `vjs-descriptions-button ${super.buildWrapperCSSClass()}`;\n        }\n    }\n\n    /**\n     * `kind` of TextTrack to look for to associate it with this menu.\n     *\n     * @type {string}\n     * @private\n     */\n    DescriptionsButton.prototype.kind_ = 'descriptions';\n\n    /**\n     * The text that should display over the `DescriptionsButton`s controls. Added for localization.\n     *\n     * @type {string}\n     * @protected\n     */\n    DescriptionsButton.prototype.controlText_ = 'Descriptions';\n    Component$1.registerComponent('DescriptionsButton', DescriptionsButton);\n\n    /**\n     * @file subtitles-button.js\n     */\n\n    /**\n     * The button component for toggling and selecting subtitles\n     *\n     * @extends TextTrackButton\n     */\n    class SubtitlesButton extends TextTrackButton {\n        /**\n         * Creates an instance of this class.\n         *\n         * @param { import('../../player').default } player\n         *        The `Player` that this class should be attached to.\n         *\n         * @param {Object} [options]\n         *        The key/value store of player options.\n         *\n         * @param {Function} [ready]\n         *        The function to call when this component is ready.\n         */\n        constructor(player, options, ready) {\n            super(player, options, ready);\n        }\n\n        /**\n         * Builds the default DOM `className`.\n         *\n         * @return {string}\n         *         The DOM `className` for this object.\n         */\n        buildCSSClass() {\n            return `vjs-subtitles-button ${super.buildCSSClass()}`;\n        }\n        buildWrapperCSSClass() {\n            return `vjs-subtitles-button ${super.buildWrapperCSSClass()}`;\n        }\n    }\n\n    /**\n     * `kind` of TextTrack to look for to associate it with this menu.\n     *\n     * @type {string}\n     * @private\n     */\n    SubtitlesButton.prototype.kind_ = 'subtitles';\n\n    /**\n     * The text that should display over the `SubtitlesButton`s controls. Added for localization.\n     *\n     * @type {string}\n     * @protected\n     */\n    SubtitlesButton.prototype.controlText_ = 'Subtitles';\n    Component$1.registerComponent('SubtitlesButton', SubtitlesButton);\n\n    /**\n     * @file caption-settings-menu-item.js\n     */\n\n    /**\n     * The menu item for caption track settings menu\n     *\n     * @extends TextTrackMenuItem\n     */\n    class CaptionSettingsMenuItem extends TextTrackMenuItem {\n        /**\n         * Creates an instance of this class.\n         *\n         * @param { import('../../player').default } player\n         *        The `Player` that this class should be attached to.\n         *\n         * @param {Object} [options]\n         *        The key/value store of player options.\n         */\n        constructor(player, options) {\n            options.track = {\n                player,\n                kind: options.kind,\n                label: options.kind + ' settings',\n                selectable: false,\n                default: false,\n                mode: 'disabled'\n            };\n\n            // CaptionSettingsMenuItem has no concept of 'selected'\n            options.selectable = false;\n            options.name = 'CaptionSettingsMenuItem';\n            super(player, options);\n            this.addClass('vjs-texttrack-settings');\n            this.controlText(', opens ' + options.kind + ' settings dialog');\n        }\n\n        /**\n         * This gets called when an `CaptionSettingsMenuItem` is \"clicked\". See\n         * {@link ClickableComponent} for more detailed information on what a click can be.\n         *\n         * @param {Event} [event]\n         *        The `keydown`, `tap`, or `click` event that caused this function to be\n         *        called.\n         *\n         * @listens tap\n         * @listens click\n         */\n        handleClick(event) {\n            this.player().getChild('textTrackSettings').open();\n        }\n\n        /**\n         * Update control text and label on languagechange\n         */\n        handleLanguagechange() {\n            this.$('.vjs-menu-item-text').textContent = this.player_.localize(this.options_.kind + ' settings');\n            super.handleLanguagechange();\n        }\n    }\n    Component$1.registerComponent('CaptionSettingsMenuItem', CaptionSettingsMenuItem);\n\n    /**\n     * @file captions-button.js\n     */\n\n    /**\n     * The button component for toggling and selecting captions\n     *\n     * @extends TextTrackButton\n     */\n    class CaptionsButton extends TextTrackButton {\n        /**\n         * Creates an instance of this class.\n         *\n         * @param { import('../../player').default } player\n         *        The `Player` that this class should be attached to.\n         *\n         * @param {Object} [options]\n         *        The key/value store of player options.\n         *\n         * @param {Function} [ready]\n         *        The function to call when this component is ready.\n         */\n        constructor(player, options, ready) {\n            super(player, options, ready);\n        }\n\n        /**\n         * Builds the default DOM `className`.\n         *\n         * @return {string}\n         *         The DOM `className` for this object.\n         */\n        buildCSSClass() {\n            return `vjs-captions-button ${super.buildCSSClass()}`;\n        }\n        buildWrapperCSSClass() {\n            return `vjs-captions-button ${super.buildWrapperCSSClass()}`;\n        }\n\n        /**\n         * Create caption menu items\n         *\n         * @return {CaptionSettingsMenuItem[]}\n         *         The array of current menu items.\n         */\n        createItems() {\n            const items = [];\n            if (!(this.player().tech_ && this.player().tech_.featuresNativeTextTracks) && this.player().getChild('textTrackSettings')) {\n                items.push(new CaptionSettingsMenuItem(this.player_, {\n                    kind: this.kind_\n                }));\n                this.hideThreshold_ += 1;\n            }\n            return super.createItems(items);\n        }\n    }\n\n    /**\n     * `kind` of TextTrack to look for to associate it with this menu.\n     *\n     * @type {string}\n     * @private\n     */\n    CaptionsButton.prototype.kind_ = 'captions';\n\n    /**\n     * The text that should display over the `CaptionsButton`s controls. Added for localization.\n     *\n     * @type {string}\n     * @protected\n     */\n    CaptionsButton.prototype.controlText_ = 'Captions';\n    Component$1.registerComponent('CaptionsButton', CaptionsButton);\n\n    /**\n     * @file subs-caps-menu-item.js\n     */\n\n    /**\n     * SubsCapsMenuItem has an [cc] icon to distinguish captions from subtitles\n     * in the SubsCapsMenu.\n     *\n     * @extends TextTrackMenuItem\n     */\n    class SubsCapsMenuItem extends TextTrackMenuItem {\n        createEl(type, props, attrs) {\n            const el = super.createEl(type, props, attrs);\n            const parentSpan = el.querySelector('.vjs-menu-item-text');\n            if (this.options_.track.kind === 'captions') {\n                parentSpan.appendChild(createEl('span', {\n                    className: 'vjs-icon-placeholder'\n                }, {\n                    'aria-hidden': true\n                }));\n                parentSpan.appendChild(createEl('span', {\n                    className: 'vjs-control-text',\n                    // space added as the text will visually flow with the\n                    // label\n                    textContent: ` ${this.localize('Captions')}`\n                }));\n            }\n            return el;\n        }\n    }\n    Component$1.registerComponent('SubsCapsMenuItem', SubsCapsMenuItem);\n\n    /**\n     * @file sub-caps-button.js\n     */\n\n    /**\n     * The button component for toggling and selecting captions and/or subtitles\n     *\n     * @extends TextTrackButton\n     */\n    class SubsCapsButton extends TextTrackButton {\n        /**\n         * Creates an instance of this class.\n         *\n         * @param { import('../../player').default } player\n         *        The `Player` that this class should be attached to.\n         *\n         * @param {Object} [options]\n         *        The key/value store of player options.\n         *\n         * @param {Function} [ready]\n         *        The function to call when this component is ready.\n         */\n        constructor(player, options = {}) {\n            super(player, options);\n\n            // Although North America uses \"captions\" in most cases for\n            // \"captions and subtitles\" other locales use \"subtitles\"\n            this.label_ = 'subtitles';\n            if (['en', 'en-us', 'en-ca', 'fr-ca'].indexOf(this.player_.language_) > -1) {\n                this.label_ = 'captions';\n            }\n            this.menuButton_.controlText(toTitleCase$1(this.label_));\n        }\n\n        /**\n         * Builds the default DOM `className`.\n         *\n         * @return {string}\n         *         The DOM `className` for this object.\n         */\n        buildCSSClass() {\n            return `vjs-subs-caps-button ${super.buildCSSClass()}`;\n        }\n        buildWrapperCSSClass() {\n            return `vjs-subs-caps-button ${super.buildWrapperCSSClass()}`;\n        }\n\n        /**\n         * Create caption/subtitles menu items\n         *\n         * @return {CaptionSettingsMenuItem[]}\n         *         The array of current menu items.\n         */\n        createItems() {\n            let items = [];\n            if (!(this.player().tech_ && this.player().tech_.featuresNativeTextTracks) && this.player().getChild('textTrackSettings')) {\n                items.push(new CaptionSettingsMenuItem(this.player_, {\n                    kind: this.label_\n                }));\n                this.hideThreshold_ += 1;\n            }\n            items = super.createItems(items, SubsCapsMenuItem);\n            return items;\n        }\n    }\n\n    /**\n     * `kind`s of TextTrack to look for to associate it with this menu.\n     *\n     * @type {array}\n     * @private\n     */\n    SubsCapsButton.prototype.kinds_ = ['captions', 'subtitles'];\n\n    /**\n     * The text that should display over the `SubsCapsButton`s controls.\n     *\n     *\n     * @type {string}\n     * @protected\n     */\n    SubsCapsButton.prototype.controlText_ = 'Subtitles';\n    Component$1.registerComponent('SubsCapsButton', SubsCapsButton);\n\n    /**\n     * @file audio-track-menu-item.js\n     */\n\n    /**\n     * An {@link AudioTrack} {@link MenuItem}\n     *\n     * @extends MenuItem\n     */\n    class AudioTrackMenuItem extends MenuItem {\n        /**\n         * Creates an instance of this class.\n         *\n         * @param { import('../../player').default } player\n         *        The `Player` that this class should be attached to.\n         *\n         * @param {Object} [options]\n         *        The key/value store of player options.\n         */\n        constructor(player, options) {\n            const track = options.track;\n            const tracks = player.audioTracks();\n\n            // Modify options for parent MenuItem class's init.\n            options.label = track.label || track.language || 'Unknown';\n            options.selected = track.enabled;\n            super(player, options);\n            this.track = track;\n            this.addClass(`vjs-${track.kind}-menu-item`);\n            const changeHandler = (...args) => {\n                this.handleTracksChange.apply(this, args);\n            };\n            tracks.addEventListener('change', changeHandler);\n            this.on('dispose', () => {\n                tracks.removeEventListener('change', changeHandler);\n            });\n        }\n        createEl(type, props, attrs) {\n            const el = super.createEl(type, props, attrs);\n            const parentSpan = el.querySelector('.vjs-menu-item-text');\n            if (this.options_.track.kind === 'main-desc') {\n                parentSpan.appendChild(createEl('span', {\n                    className: 'vjs-icon-placeholder'\n                }, {\n                    'aria-hidden': true\n                }));\n                parentSpan.appendChild(createEl('span', {\n                    className: 'vjs-control-text',\n                    textContent: ' ' + this.localize('Descriptions')\n                }));\n            }\n            return el;\n        }\n\n        /**\n         * This gets called when an `AudioTrackMenuItem is \"clicked\". See {@link ClickableComponent}\n         * for more detailed information on what a click can be.\n         *\n         * @param {Event} [event]\n         *        The `keydown`, `tap`, or `click` event that caused this function to be\n         *        called.\n         *\n         * @listens tap\n         * @listens click\n         */\n        handleClick(event) {\n            super.handleClick(event);\n\n            // the audio track list will automatically toggle other tracks\n            // off for us.\n            this.track.enabled = true;\n\n            // when native audio tracks are used, we want to make sure that other tracks are turned off\n            if (this.player_.tech_.featuresNativeAudioTracks) {\n                const tracks = this.player_.audioTracks();\n                for (let i = 0; i < tracks.length; i++) {\n                    const track = tracks[i];\n\n                    // skip the current track since we enabled it above\n                    if (track === this.track) {\n                        continue;\n                    }\n                    track.enabled = track === this.track;\n                }\n            }\n        }\n\n        /**\n         * Handle any {@link AudioTrack} change.\n         *\n         * @param {Event} [event]\n         *        The {@link AudioTrackList#change} event that caused this to run.\n         *\n         * @listens AudioTrackList#change\n         */\n        handleTracksChange(event) {\n            this.selected(this.track.enabled);\n        }\n    }\n    Component$1.registerComponent('AudioTrackMenuItem', AudioTrackMenuItem);\n\n    /**\n     * @file audio-track-button.js\n     */\n\n    /**\n     * The base class for buttons that toggle specific {@link AudioTrack} types.\n     *\n     * @extends TrackButton\n     */\n    class AudioTrackButton extends TrackButton {\n        /**\n         * Creates an instance of this class.\n         *\n         * @param {Player} player\n         *        The `Player` that this class should be attached to.\n         *\n         * @param {Object} [options={}]\n         *        The key/value store of player options.\n         */\n        constructor(player, options = {}) {\n            options.tracks = player.audioTracks();\n            super(player, options);\n        }\n\n        /**\n         * Builds the default DOM `className`.\n         *\n         * @return {string}\n         *         The DOM `className` for this object.\n         */\n        buildCSSClass() {\n            return `vjs-audio-button ${super.buildCSSClass()}`;\n        }\n        buildWrapperCSSClass() {\n            return `vjs-audio-button ${super.buildWrapperCSSClass()}`;\n        }\n\n        /**\n         * Create a menu item for each audio track\n         *\n         * @param {AudioTrackMenuItem[]} [items=[]]\n         *        An array of existing menu items to use.\n         *\n         * @return {AudioTrackMenuItem[]}\n         *         An array of menu items\n         */\n        createItems(items = []) {\n            // if there's only one audio track, there no point in showing it\n            this.hideThreshold_ = 1;\n            const tracks = this.player_.audioTracks();\n            for (let i = 0; i < tracks.length; i++) {\n                const track = tracks[i];\n                items.push(new AudioTrackMenuItem(this.player_, {\n                    track,\n                    // MenuItem is selectable\n                    selectable: true,\n                    // MenuItem is NOT multiSelectable (i.e. only one can be marked \"selected\" at a time)\n                    multiSelectable: false\n                }));\n            }\n            return items;\n        }\n    }\n\n    /**\n     * The text that should display over the `AudioTrackButton`s controls. Added for localization.\n     *\n     * @type {string}\n     * @protected\n     */\n    AudioTrackButton.prototype.controlText_ = 'Audio Track';\n    Component$1.registerComponent('AudioTrackButton', AudioTrackButton);\n\n    /**\n     * @file playback-rate-menu-item.js\n     */\n\n    /**\n     * The specific menu item type for selecting a playback rate.\n     *\n     * @extends MenuItem\n     */\n    class PlaybackRateMenuItem extends MenuItem {\n        /**\n         * Creates an instance of this class.\n         *\n         * @param { import('../../player').default } player\n         *        The `Player` that this class should be attached to.\n         *\n         * @param {Object} [options]\n         *        The key/value store of player options.\n         */\n        constructor(player, options) {\n            const label = options.rate;\n            const rate = parseFloat(label, 10);\n\n            // Modify options for parent MenuItem class's init.\n            options.label = label;\n            options.selected = rate === player.playbackRate();\n            options.selectable = true;\n            options.multiSelectable = false;\n            super(player, options);\n            this.label = label;\n            this.rate = rate;\n            this.on(player, 'ratechange', e => this.update(e));\n        }\n\n        /**\n         * This gets called when an `PlaybackRateMenuItem` is \"clicked\". See\n         * {@link ClickableComponent} for more detailed information on what a click can be.\n         *\n         * @param {Event} [event]\n         *        The `keydown`, `tap`, or `click` event that caused this function to be\n         *        called.\n         *\n         * @listens tap\n         * @listens click\n         */\n        handleClick(event) {\n            super.handleClick();\n            this.player().playbackRate(this.rate);\n        }\n\n        /**\n         * Update the PlaybackRateMenuItem when the playbackrate changes.\n         *\n         * @param {Event} [event]\n         *        The `ratechange` event that caused this function to run.\n         *\n         * @listens Player#ratechange\n         */\n        update(event) {\n            this.selected(this.player().playbackRate() === this.rate);\n        }\n    }\n\n    /**\n     * The text that should display over the `PlaybackRateMenuItem`s controls. Added for localization.\n     *\n     * @type {string}\n     * @private\n     */\n    PlaybackRateMenuItem.prototype.contentElType = 'button';\n    Component$1.registerComponent('PlaybackRateMenuItem', PlaybackRateMenuItem);\n\n    /**\n     * @file playback-rate-menu-button.js\n     */\n\n    /**\n     * The component for controlling the playback rate.\n     *\n     * @extends MenuButton\n     */\n    class PlaybackRateMenuButton extends MenuButton {\n        /**\n         * Creates an instance of this class.\n         *\n         * @param { import('../../player').default } player\n         *        The `Player` that this class should be attached to.\n         *\n         * @param {Object} [options]\n         *        The key/value store of player options.\n         */\n        constructor(player, options) {\n            super(player, options);\n            this.menuButton_.el_.setAttribute('aria-describedby', this.labelElId_);\n            this.updateVisibility();\n            this.updateLabel();\n            this.on(player, 'loadstart', e => this.updateVisibility(e));\n            this.on(player, 'ratechange', e => this.updateLabel(e));\n            this.on(player, 'playbackrateschange', e => this.handlePlaybackRateschange(e));\n        }\n\n        /**\n         * Create the `Component`'s DOM element\n         *\n         * @return {Element}\n         *         The element that was created.\n         */\n        createEl() {\n            const el = super.createEl();\n            this.labelElId_ = 'vjs-playback-rate-value-label-' + this.id_;\n            this.labelEl_ = createEl('div', {\n                className: 'vjs-playback-rate-value',\n                id: this.labelElId_,\n                textContent: '1x'\n            });\n            el.appendChild(this.labelEl_);\n            return el;\n        }\n        dispose() {\n            this.labelEl_ = null;\n            super.dispose();\n        }\n\n        /**\n         * Builds the default DOM `className`.\n         *\n         * @return {string}\n         *         The DOM `className` for this object.\n         */\n        buildCSSClass() {\n            return `vjs-playback-rate ${super.buildCSSClass()}`;\n        }\n        buildWrapperCSSClass() {\n            return `vjs-playback-rate ${super.buildWrapperCSSClass()}`;\n        }\n\n        /**\n         * Create the list of menu items. Specific to each subclass.\n         *\n         */\n        createItems() {\n            const rates = this.playbackRates();\n            const items = [];\n            for (let i = rates.length - 1; i >= 0; i--) {\n                items.push(new PlaybackRateMenuItem(this.player(), {\n                    rate: rates[i] + 'x'\n                }));\n            }\n            return items;\n        }\n\n        /**\n         * On playbackrateschange, update the menu to account for the new items.\n         *\n         * @listens Player#playbackrateschange\n         */\n        handlePlaybackRateschange(event) {\n            this.update();\n        }\n\n        /**\n         * Get possible playback rates\n         *\n         * @return {Array}\n         *         All possible playback rates\n         */\n        playbackRates() {\n            const player = this.player();\n            return player.playbackRates && player.playbackRates() || [];\n        }\n\n        /**\n         * Get whether playback rates is supported by the tech\n         * and an array of playback rates exists\n         *\n         * @return {boolean}\n         *         Whether changing playback rate is supported\n         */\n        playbackRateSupported() {\n            return this.player().tech_ && this.player().tech_.featuresPlaybackRate && this.playbackRates() && this.playbackRates().length > 0;\n        }\n\n        /**\n         * Hide playback rate controls when they're no playback rate options to select\n         *\n         * @param {Event} [event]\n         *        The event that caused this function to run.\n         *\n         * @listens Player#loadstart\n         */\n        updateVisibility(event) {\n            if (this.playbackRateSupported()) {\n                this.removeClass('vjs-hidden');\n            } else {\n                this.addClass('vjs-hidden');\n            }\n        }\n\n        /**\n         * Update button label when rate changed\n         *\n         * @param {Event} [event]\n         *        The event that caused this function to run.\n         *\n         * @listens Player#ratechange\n         */\n        updateLabel(event) {\n            if (this.playbackRateSupported()) {\n                this.labelEl_.textContent = this.player().playbackRate() + 'x';\n            }\n        }\n    }\n\n    /**\n     * The text that should display over the `PlaybackRateMenuButton`s controls.\n     *\n     * Added for localization.\n     *\n     * @type {string}\n     * @protected\n     */\n    PlaybackRateMenuButton.prototype.controlText_ = 'Playback Rate';\n    Component$1.registerComponent('PlaybackRateMenuButton', PlaybackRateMenuButton);\n\n    /**\n     * @file spacer.js\n     */\n\n    /**\n     * Just an empty spacer element that can be used as an append point for plugins, etc.\n     * Also can be used to create space between elements when necessary.\n     *\n     * @extends Component\n     */\n    class Spacer extends Component$1 {\n        /**\n         * Builds the default DOM `className`.\n         *\n         * @return {string}\n         *         The DOM `className` for this object.\n         */\n        buildCSSClass() {\n            return `vjs-spacer ${super.buildCSSClass()}`;\n        }\n\n        /**\n         * Create the `Component`'s DOM element\n         *\n         * @return {Element}\n         *         The element that was created.\n         */\n        createEl(tag = 'div', props = {}, attributes = {}) {\n            if (!props.className) {\n                props.className = this.buildCSSClass();\n            }\n            return super.createEl(tag, props, attributes);\n        }\n    }\n    Component$1.registerComponent('Spacer', Spacer);\n\n    /**\n     * @file custom-control-spacer.js\n     */\n\n    /**\n     * Spacer specifically meant to be used as an insertion point for new plugins, etc.\n     *\n     * @extends Spacer\n     */\n    class CustomControlSpacer extends Spacer {\n        /**\n         * Builds the default DOM `className`.\n         *\n         * @return {string}\n         *         The DOM `className` for this object.\n         */\n        buildCSSClass() {\n            return `vjs-custom-control-spacer ${super.buildCSSClass()}`;\n        }\n\n        /**\n         * Create the `Component`'s DOM element\n         *\n         * @return {Element}\n         *         The element that was created.\n         */\n        createEl() {\n            return super.createEl('div', {\n                className: this.buildCSSClass(),\n                // No-flex/table-cell mode requires there be some content\n                // in the cell to fill the remaining space of the table.\n                textContent: '\\u00a0'\n            });\n        }\n    }\n    Component$1.registerComponent('CustomControlSpacer', CustomControlSpacer);\n\n    /**\n     * @file control-bar.js\n     */\n\n    /**\n     * Container of main controls.\n     *\n     * @extends Component\n     */\n    class ControlBar extends Component$1 {\n        /**\n         * Create the `Component`'s DOM element\n         *\n         * @return {Element}\n         *         The element that was created.\n         */\n        createEl() {\n            return super.createEl('div', {\n                className: 'vjs-control-bar',\n                dir: 'ltr'\n            });\n        }\n    }\n\n    /**\n     * Default options for `ControlBar`\n     *\n     * @type {Object}\n     * @private\n     */\n    ControlBar.prototype.options_ = {\n        children: ['playToggle', 'skipBackward', 'skipForward', 'volumePanel', 'currentTimeDisplay', 'timeDivider', 'durationDisplay', 'progressControl', 'liveDisplay', 'seekToLive', 'remainingTimeDisplay', 'customControlSpacer', 'playbackRateMenuButton', 'chaptersButton', 'descriptionsButton', 'subsCapsButton', 'audioTrackButton', 'fullscreenToggle']\n    };\n    if ('exitPictureInPicture' in document) {\n        ControlBar.prototype.options_.children.splice(ControlBar.prototype.options_.children.length - 1, 0, 'pictureInPictureToggle');\n    }\n    Component$1.registerComponent('ControlBar', ControlBar);\n\n    /**\n     * @file error-display.js\n     */\n\n    /**\n     * A display that indicates an error has occurred. This means that the video\n     * is unplayable.\n     *\n     * @extends ModalDialog\n     */\n    class ErrorDisplay extends ModalDialog {\n        /**\n         * Creates an instance of this class.\n         *\n         * @param  { import('./player').default } player\n         *         The `Player` that this class should be attached to.\n         *\n         * @param  {Object} [options]\n         *         The key/value store of player options.\n         */\n        constructor(player, options) {\n            super(player, options);\n            this.on(player, 'error', e => this.open(e));\n        }\n\n        /**\n         * Builds the default DOM `className`.\n         *\n         * @return {string}\n         *         The DOM `className` for this object.\n         *\n         * @deprecated Since version 5.\n         */\n        buildCSSClass() {\n            return `vjs-error-display ${super.buildCSSClass()}`;\n        }\n\n        /**\n         * Gets the localized error message based on the `Player`s error.\n         *\n         * @return {string}\n         *         The `Player`s error message localized or an empty string.\n         */\n        content() {\n            const error = this.player().error();\n            return error ? this.localize(error.message) : '';\n        }\n    }\n\n    /**\n     * The default options for an `ErrorDisplay`.\n     *\n     * @private\n     */\n    ErrorDisplay.prototype.options_ = Object.assign({}, ModalDialog.prototype.options_, {\n        pauseOnOpen: false,\n        fillAlways: true,\n        temporary: false,\n        uncloseable: true\n    });\n    Component$1.registerComponent('ErrorDisplay', ErrorDisplay);\n\n    /**\n     * @file text-track-settings.js\n     */\n    const LOCAL_STORAGE_KEY$1 = 'vjs-text-track-settings';\n    const COLOR_BLACK = ['#000', 'Black'];\n    const COLOR_BLUE = ['#00F', 'Blue'];\n    const COLOR_CYAN = ['#0FF', 'Cyan'];\n    const COLOR_GREEN = ['#0F0', 'Green'];\n    const COLOR_MAGENTA = ['#F0F', 'Magenta'];\n    const COLOR_RED = ['#F00', 'Red'];\n    const COLOR_WHITE = ['#FFF', 'White'];\n    const COLOR_YELLOW = ['#FF0', 'Yellow'];\n    const OPACITY_OPAQUE = ['1', 'Opaque'];\n    const OPACITY_SEMI = ['0.5', 'Semi-Transparent'];\n    const OPACITY_TRANS = ['0', 'Transparent'];\n\n    // Configuration for the various <select> elements in the DOM of this component.\n    //\n    // Possible keys include:\n    //\n    // `default`:\n    //   The default option index. Only needs to be provided if not zero.\n    // `parser`:\n    //   A function which is used to parse the value from the selected option in\n    //   a customized way.\n    // `selector`:\n    //   The selector used to find the associated <select> element.\n    const selectConfigs = {\n        backgroundColor: {\n            selector: '.vjs-bg-color > select',\n            id: 'captions-background-color-%s',\n            label: 'Color',\n            options: [COLOR_BLACK, COLOR_WHITE, COLOR_RED, COLOR_GREEN, COLOR_BLUE, COLOR_YELLOW, COLOR_MAGENTA, COLOR_CYAN]\n        },\n        backgroundOpacity: {\n            selector: '.vjs-bg-opacity > select',\n            id: 'captions-background-opacity-%s',\n            label: 'Opacity',\n            options: [OPACITY_OPAQUE, OPACITY_SEMI, OPACITY_TRANS]\n        },\n        color: {\n            selector: '.vjs-text-color > select',\n            id: 'captions-foreground-color-%s',\n            label: 'Color',\n            options: [COLOR_WHITE, COLOR_BLACK, COLOR_RED, COLOR_GREEN, COLOR_BLUE, COLOR_YELLOW, COLOR_MAGENTA, COLOR_CYAN]\n        },\n        edgeStyle: {\n            selector: '.vjs-edge-style > select',\n            id: '%s',\n            label: 'Text Edge Style',\n            options: [['none', 'None'], ['raised', 'Raised'], ['depressed', 'Depressed'], ['uniform', 'Uniform'], ['dropshadow', 'Dropshadow']]\n        },\n        fontFamily: {\n            selector: '.vjs-font-family > select',\n            id: 'captions-font-family-%s',\n            label: 'Font Family',\n            options: [['proportionalSansSerif', 'Proportional Sans-Serif'], ['monospaceSansSerif', 'Monospace Sans-Serif'], ['proportionalSerif', 'Proportional Serif'], ['monospaceSerif', 'Monospace Serif'], ['casual', 'Casual'], ['script', 'Script'], ['small-caps', 'Small Caps']]\n        },\n        fontPercent: {\n            selector: '.vjs-font-percent > select',\n            id: 'captions-font-size-%s',\n            label: 'Font Size',\n            options: [['0.50', '50%'], ['0.75', '75%'], ['1.00', '100%'], ['1.25', '125%'], ['1.50', '150%'], ['1.75', '175%'], ['2.00', '200%'], ['3.00', '300%'], ['4.00', '400%']],\n            default: 2,\n            parser: v => v === '1.00' ? null : Number(v)\n        },\n        textOpacity: {\n            selector: '.vjs-text-opacity > select',\n            id: 'captions-foreground-opacity-%s',\n            label: 'Opacity',\n            options: [OPACITY_OPAQUE, OPACITY_SEMI]\n        },\n        // Options for this object are defined below.\n        windowColor: {\n            selector: '.vjs-window-color > select',\n            id: 'captions-window-color-%s',\n            label: 'Color'\n        },\n        // Options for this object are defined below.\n        windowOpacity: {\n            selector: '.vjs-window-opacity > select',\n            id: 'captions-window-opacity-%s',\n            label: 'Opacity',\n            options: [OPACITY_TRANS, OPACITY_SEMI, OPACITY_OPAQUE]\n        }\n    };\n    selectConfigs.windowColor.options = selectConfigs.backgroundColor.options;\n\n    /**\n     * Get the actual value of an option.\n     *\n     * @param  {string} value\n     *         The value to get\n     *\n     * @param  {Function} [parser]\n     *         Optional function to adjust the value.\n     *\n     * @return {*}\n     *         - Will be `undefined` if no value exists\n     *         - Will be `undefined` if the given value is \"none\".\n     *         - Will be the actual value otherwise.\n     *\n     * @private\n     */\n    function parseOptionValue(value, parser) {\n        if (parser) {\n            value = parser(value);\n        }\n        if (value && value !== 'none') {\n            return value;\n        }\n    }\n\n    /**\n     * Gets the value of the selected <option> element within a <select> element.\n     *\n     * @param  {Element} el\n     *         the element to look in\n     *\n     * @param  {Function} [parser]\n     *         Optional function to adjust the value.\n     *\n     * @return {*}\n     *         - Will be `undefined` if no value exists\n     *         - Will be `undefined` if the given value is \"none\".\n     *         - Will be the actual value otherwise.\n     *\n     * @private\n     */\n    function getSelectedOptionValue(el, parser) {\n        const value = el.options[el.options.selectedIndex].value;\n        return parseOptionValue(value, parser);\n    }\n\n    /**\n     * Sets the selected <option> element within a <select> element based on a\n     * given value.\n     *\n     * @param {Element} el\n     *        The element to look in.\n     *\n     * @param {string} value\n     *        the property to look on.\n     *\n     * @param {Function} [parser]\n     *        Optional function to adjust the value before comparing.\n     *\n     * @private\n     */\n    function setSelectedOption(el, value, parser) {\n        if (!value) {\n            return;\n        }\n        for (let i = 0; i < el.options.length; i++) {\n            if (parseOptionValue(el.options[i].value, parser) === value) {\n                el.selectedIndex = i;\n                break;\n            }\n        }\n    }\n\n    /**\n     * Manipulate Text Tracks settings.\n     *\n     * @extends ModalDialog\n     */\n    class TextTrackSettings extends ModalDialog {\n        /**\n         * Creates an instance of this class.\n         *\n         * @param { import('../player').default } player\n         *         The `Player` that this class should be attached to.\n         *\n         * @param {Object} [options]\n         *         The key/value store of player options.\n         */\n        constructor(player, options) {\n            options.temporary = false;\n            super(player, options);\n            this.updateDisplay = this.updateDisplay.bind(this);\n\n            // fill the modal and pretend we have opened it\n            this.fill();\n            this.hasBeenOpened_ = this.hasBeenFilled_ = true;\n            this.endDialog = createEl('p', {\n                className: 'vjs-control-text',\n                textContent: this.localize('End of dialog window.')\n            });\n            this.el().appendChild(this.endDialog);\n            this.setDefaults();\n\n            // Grab `persistTextTrackSettings` from the player options if not passed in child options\n            if (options.persistTextTrackSettings === undefined) {\n                this.options_.persistTextTrackSettings = this.options_.playerOptions.persistTextTrackSettings;\n            }\n            this.on(this.$('.vjs-done-button'), 'click', () => {\n                this.saveSettings();\n                this.close();\n            });\n            this.on(this.$('.vjs-default-button'), 'click', () => {\n                this.setDefaults();\n                this.updateDisplay();\n            });\n            each(selectConfigs, config => {\n                this.on(this.$(config.selector), 'change', this.updateDisplay);\n            });\n            if (this.options_.persistTextTrackSettings) {\n                this.restoreSettings();\n            }\n        }\n        dispose() {\n            this.endDialog = null;\n            super.dispose();\n        }\n\n        /**\n         * Create a <select> element with configured options.\n         *\n         * @param {string} key\n         *        Configuration key to use during creation.\n         *\n         * @return {string}\n         *         An HTML string.\n         *\n         * @private\n         */\n        createElSelect_(key, legendId = '', type = 'label') {\n            const config = selectConfigs[key];\n            const id = config.id.replace('%s', this.id_);\n            const selectLabelledbyIds = [legendId, id].join(' ').trim();\n            return [`<${type} id=\"${id}\" class=\"${type === 'label' ? 'vjs-label' : ''}\">`, this.localize(config.label), `</${type}>`, `<select aria-labelledby=\"${selectLabelledbyIds}\">`].concat(config.options.map(o => {\n                const optionId = id + '-' + o[1].replace(/\\W+/g, '');\n                return [`<option id=\"${optionId}\" value=\"${o[0]}\" `, `aria-labelledby=\"${selectLabelledbyIds} ${optionId}\">`, this.localize(o[1]), '</option>'].join('');\n            })).concat('</select>').join('');\n        }\n\n        /**\n         * Create foreground color element for the component\n         *\n         * @return {string}\n         *         An HTML string.\n         *\n         * @private\n         */\n        createElFgColor_() {\n            const legendId = `captions-text-legend-${this.id_}`;\n            return ['<fieldset class=\"vjs-fg vjs-track-setting\">', `<legend id=\"${legendId}\">`, this.localize('Text'), '</legend>', '<span class=\"vjs-text-color\">', this.createElSelect_('color', legendId), '</span>', '<span class=\"vjs-text-opacity vjs-opacity\">', this.createElSelect_('textOpacity', legendId), '</span>', '</fieldset>'].join('');\n        }\n\n        /**\n         * Create background color element for the component\n         *\n         * @return {string}\n         *         An HTML string.\n         *\n         * @private\n         */\n        createElBgColor_() {\n            const legendId = `captions-background-${this.id_}`;\n            return ['<fieldset class=\"vjs-bg vjs-track-setting\">', `<legend id=\"${legendId}\">`, this.localize('Text Background'), '</legend>', '<span class=\"vjs-bg-color\">', this.createElSelect_('backgroundColor', legendId), '</span>', '<span class=\"vjs-bg-opacity vjs-opacity\">', this.createElSelect_('backgroundOpacity', legendId), '</span>', '</fieldset>'].join('');\n        }\n\n        /**\n         * Create window color element for the component\n         *\n         * @return {string}\n         *         An HTML string.\n         *\n         * @private\n         */\n        createElWinColor_() {\n            const legendId = `captions-window-${this.id_}`;\n            return ['<fieldset class=\"vjs-window vjs-track-setting\">', `<legend id=\"${legendId}\">`, this.localize('Caption Area Background'), '</legend>', '<span class=\"vjs-window-color\">', this.createElSelect_('windowColor', legendId), '</span>', '<span class=\"vjs-window-opacity vjs-opacity\">', this.createElSelect_('windowOpacity', legendId), '</span>', '</fieldset>'].join('');\n        }\n\n        /**\n         * Create color elements for the component\n         *\n         * @return {Element}\n         *         The element that was created\n         *\n         * @private\n         */\n        createElColors_() {\n            return createEl('div', {\n                className: 'vjs-track-settings-colors',\n                innerHTML: [this.createElFgColor_(), this.createElBgColor_(), this.createElWinColor_()].join('')\n            });\n        }\n\n        /**\n         * Create font elements for the component\n         *\n         * @return {Element}\n         *         The element that was created.\n         *\n         * @private\n         */\n        createElFont_() {\n            return createEl('div', {\n                className: 'vjs-track-settings-font',\n                innerHTML: ['<fieldset class=\"vjs-font-percent vjs-track-setting\">', this.createElSelect_('fontPercent', '', 'legend'), '</fieldset>', '<fieldset class=\"vjs-edge-style vjs-track-setting\">', this.createElSelect_('edgeStyle', '', 'legend'), '</fieldset>', '<fieldset class=\"vjs-font-family vjs-track-setting\">', this.createElSelect_('fontFamily', '', 'legend'), '</fieldset>'].join('')\n            });\n        }\n\n        /**\n         * Create controls for the component\n         *\n         * @return {Element}\n         *         The element that was created.\n         *\n         * @private\n         */\n        createElControls_() {\n            const defaultsDescription = this.localize('restore all settings to the default values');\n            return createEl('div', {\n                className: 'vjs-track-settings-controls',\n                innerHTML: [`<button type=\"button\" class=\"vjs-default-button\" title=\"${defaultsDescription}\">`, this.localize('Reset'), `<span class=\"vjs-control-text\"> ${defaultsDescription}</span>`, '</button>', `<button type=\"button\" class=\"vjs-done-button\">${this.localize('Done')}</button>`].join('')\n            });\n        }\n        content() {\n            return [this.createElColors_(), this.createElFont_(), this.createElControls_()];\n        }\n        label() {\n            return this.localize('Caption Settings Dialog');\n        }\n        description() {\n            return this.localize('Beginning of dialog window. Escape will cancel and close the window.');\n        }\n        buildCSSClass() {\n            return super.buildCSSClass() + ' vjs-text-track-settings';\n        }\n\n        /**\n         * Gets an object of text track settings (or null).\n         *\n         * @return {Object}\n         *         An object with config values parsed from the DOM or localStorage.\n         */\n        getValues() {\n            return reduce(selectConfigs, (accum, config, key) => {\n                const value = getSelectedOptionValue(this.$(config.selector), config.parser);\n                if (value !== undefined) {\n                    accum[key] = value;\n                }\n                return accum;\n            }, {});\n        }\n\n        /**\n         * Sets text track settings from an object of values.\n         *\n         * @param {Object} values\n         *        An object with config values parsed from the DOM or localStorage.\n         */\n        setValues(values) {\n            each(selectConfigs, (config, key) => {\n                setSelectedOption(this.$(config.selector), values[key], config.parser);\n            });\n        }\n\n        /**\n         * Sets all `<select>` elements to their default values.\n         */\n        setDefaults() {\n            each(selectConfigs, config => {\n                const index = config.hasOwnProperty('default') ? config.default : 0;\n                this.$(config.selector).selectedIndex = index;\n            });\n        }\n\n        /**\n         * Restore texttrack settings from localStorage\n         */\n        restoreSettings() {\n            let values;\n            try {\n                values = JSON.parse(window.localStorage.getItem(LOCAL_STORAGE_KEY$1));\n            } catch (err) {\n                log$1.warn(err);\n            }\n            if (values) {\n                this.setValues(values);\n            }\n        }\n\n        /**\n         * Save text track settings to localStorage\n         */\n        saveSettings() {\n            if (!this.options_.persistTextTrackSettings) {\n                return;\n            }\n            const values = this.getValues();\n            try {\n                if (Object.keys(values).length) {\n                    window.localStorage.setItem(LOCAL_STORAGE_KEY$1, JSON.stringify(values));\n                } else {\n                    window.localStorage.removeItem(LOCAL_STORAGE_KEY$1);\n                }\n            } catch (err) {\n                log$1.warn(err);\n            }\n        }\n\n        /**\n         * Update display of text track settings\n         */\n        updateDisplay() {\n            const ttDisplay = this.player_.getChild('textTrackDisplay');\n            if (ttDisplay) {\n                ttDisplay.updateDisplay();\n            }\n        }\n\n        /**\n         * conditionally blur the element and refocus the captions button\n         *\n         * @private\n         */\n        conditionalBlur_() {\n            this.previouslyActiveEl_ = null;\n            const cb = this.player_.controlBar;\n            const subsCapsBtn = cb && cb.subsCapsButton;\n            const ccBtn = cb && cb.captionsButton;\n            if (subsCapsBtn) {\n                subsCapsBtn.focus();\n            } else if (ccBtn) {\n                ccBtn.focus();\n            }\n        }\n\n        /**\n         * Repopulate dialog with new localizations on languagechange\n         */\n        handleLanguagechange() {\n            this.fill();\n        }\n    }\n    Component$1.registerComponent('TextTrackSettings', TextTrackSettings);\n\n    /**\n     * @file resize-manager.js\n     */\n\n    /**\n     * A Resize Manager. It is in charge of triggering `playerresize` on the player in the right conditions.\n     *\n     * It'll either create an iframe and use a debounced resize handler on it or use the new {@link https://wicg.github.io/ResizeObserver/|ResizeObserver}.\n     *\n     * If the ResizeObserver is available natively, it will be used. A polyfill can be passed in as an option.\n     * If a `playerresize` event is not needed, the ResizeManager component can be removed from the player, see the example below.\n     *\n     * @example <caption>How to disable the resize manager</caption>\n     * const player = videojs('#vid', {\n     *   resizeManager: false\n     * });\n     *\n     * @see {@link https://wicg.github.io/ResizeObserver/|ResizeObserver specification}\n     *\n     * @extends Component\n     */\n    class ResizeManager extends Component$1 {\n        /**\n         * Create the ResizeManager.\n         *\n         * @param {Object} player\n         *        The `Player` that this class should be attached to.\n         *\n         * @param {Object} [options]\n         *        The key/value store of ResizeManager options.\n         *\n         * @param {Object} [options.ResizeObserver]\n         *        A polyfill for ResizeObserver can be passed in here.\n         *        If this is set to null it will ignore the native ResizeObserver and fall back to the iframe fallback.\n         */\n        constructor(player, options) {\n            let RESIZE_OBSERVER_AVAILABLE = options.ResizeObserver || window.ResizeObserver;\n\n            // if `null` was passed, we want to disable the ResizeObserver\n            if (options.ResizeObserver === null) {\n                RESIZE_OBSERVER_AVAILABLE = false;\n            }\n\n            // Only create an element when ResizeObserver isn't available\n            const options_ = merge$2({\n                createEl: !RESIZE_OBSERVER_AVAILABLE,\n                reportTouchActivity: false\n            }, options);\n            super(player, options_);\n            this.ResizeObserver = options.ResizeObserver || window.ResizeObserver;\n            this.loadListener_ = null;\n            this.resizeObserver_ = null;\n            this.debouncedHandler_ = debounce(() => {\n                this.resizeHandler();\n            }, 100, false, this);\n            if (RESIZE_OBSERVER_AVAILABLE) {\n                this.resizeObserver_ = new this.ResizeObserver(this.debouncedHandler_);\n                this.resizeObserver_.observe(player.el());\n            } else {\n                this.loadListener_ = () => {\n                    if (!this.el_ || !this.el_.contentWindow) {\n                        return;\n                    }\n                    const debouncedHandler_ = this.debouncedHandler_;\n                    let unloadListener_ = this.unloadListener_ = function () {\n                        off(this, 'resize', debouncedHandler_);\n                        off(this, 'unload', unloadListener_);\n                        unloadListener_ = null;\n                    };\n\n                    // safari and edge can unload the iframe before resizemanager dispose\n                    // we have to dispose of event handlers correctly before that happens\n                    on(this.el_.contentWindow, 'unload', unloadListener_);\n                    on(this.el_.contentWindow, 'resize', debouncedHandler_);\n                };\n                this.one('load', this.loadListener_);\n            }\n        }\n        createEl() {\n            return super.createEl('iframe', {\n                className: 'vjs-resize-manager',\n                tabIndex: -1,\n                title: this.localize('No content')\n            }, {\n                'aria-hidden': 'true'\n            });\n        }\n\n        /**\n         * Called when a resize is triggered on the iframe or a resize is observed via the ResizeObserver\n         *\n         * @fires Player#playerresize\n         */\n        resizeHandler() {\n            /**\n             * Called when the player size has changed\n             *\n             * @event Player#playerresize\n             * @type {Event}\n             */\n            // make sure player is still around to trigger\n            // prevents this from causing an error after dispose\n            if (!this.player_ || !this.player_.trigger) {\n                return;\n            }\n            this.player_.trigger('playerresize');\n        }\n        dispose() {\n            if (this.debouncedHandler_) {\n                this.debouncedHandler_.cancel();\n            }\n            if (this.resizeObserver_) {\n                if (this.player_.el()) {\n                    this.resizeObserver_.unobserve(this.player_.el());\n                }\n                this.resizeObserver_.disconnect();\n            }\n            if (this.loadListener_) {\n                this.off('load', this.loadListener_);\n            }\n            if (this.el_ && this.el_.contentWindow && this.unloadListener_) {\n                this.unloadListener_.call(this.el_.contentWindow);\n            }\n            this.ResizeObserver = null;\n            this.resizeObserver = null;\n            this.debouncedHandler_ = null;\n            this.loadListener_ = null;\n            super.dispose();\n        }\n    }\n    Component$1.registerComponent('ResizeManager', ResizeManager);\n\n    const defaults = {\n        trackingThreshold: 20,\n        liveTolerance: 15\n    };\n\n    /*\n    track when we are at the live edge, and other helpers for live playback */\n\n    /**\n     * A class for checking live current time and determining when the player\n     * is at or behind the live edge.\n     */\n    class LiveTracker extends Component$1 {\n        /**\n         * Creates an instance of this class.\n         *\n         * @param { import('./player').default } player\n         *        The `Player` that this class should be attached to.\n         *\n         * @param {Object} [options]\n         *        The key/value store of player options.\n         *\n         * @param {number} [options.trackingThreshold=20]\n         *        Number of seconds of live window (seekableEnd - seekableStart) that\n         *        media needs to have before the liveui will be shown.\n         *\n         * @param {number} [options.liveTolerance=15]\n         *        Number of seconds behind live that we have to be\n         *        before we will be considered non-live. Note that this will only\n         *        be used when playing at the live edge. This allows large seekable end\n         *        changes to not effect whether we are live or not.\n         */\n        constructor(player, options) {\n            // LiveTracker does not need an element\n            const options_ = merge$2(defaults, options, {\n                createEl: false\n            });\n            super(player, options_);\n            this.trackLiveHandler_ = () => this.trackLive_();\n            this.handlePlay_ = e => this.handlePlay(e);\n            this.handleFirstTimeupdate_ = e => this.handleFirstTimeupdate(e);\n            this.handleSeeked_ = e => this.handleSeeked(e);\n            this.seekToLiveEdge_ = e => this.seekToLiveEdge(e);\n            this.reset_();\n            this.on(this.player_, 'durationchange', e => this.handleDurationchange(e));\n            // we should try to toggle tracking on canplay as native playback engines, like Safari\n            // may not have the proper values for things like seekableEnd until then\n            this.on(this.player_, 'canplay', () => this.toggleTracking());\n        }\n\n        /**\n         * all the functionality for tracking when seek end changes\n         * and for tracking how far past seek end we should be\n         */\n        trackLive_() {\n            const seekable = this.player_.seekable();\n\n            // skip undefined seekable\n            if (!seekable || !seekable.length) {\n                return;\n            }\n            const newTime = Number(window.performance.now().toFixed(4));\n            const deltaTime = this.lastTime_ === -1 ? 0 : (newTime - this.lastTime_) / 1000;\n            this.lastTime_ = newTime;\n            this.pastSeekEnd_ = this.pastSeekEnd() + deltaTime;\n            const liveCurrentTime = this.liveCurrentTime();\n            const currentTime = this.player_.currentTime();\n\n            // we are behind live if any are true\n            // 1. the player is paused\n            // 2. the user seeked to a location 2 seconds away from live\n            // 3. the difference between live and current time is greater\n            //    liveTolerance which defaults to 15s\n            let isBehind = this.player_.paused() || this.seekedBehindLive_ || Math.abs(liveCurrentTime - currentTime) > this.options_.liveTolerance;\n\n            // we cannot be behind if\n            // 1. until we have not seen a timeupdate yet\n            // 2. liveCurrentTime is Infinity, which happens on Android and Native Safari\n            if (!this.timeupdateSeen_ || liveCurrentTime === Infinity) {\n                isBehind = false;\n            }\n            if (isBehind !== this.behindLiveEdge_) {\n                this.behindLiveEdge_ = isBehind;\n                this.trigger('liveedgechange');\n            }\n        }\n\n        /**\n         * handle a durationchange event on the player\n         * and start/stop tracking accordingly.\n         */\n        handleDurationchange() {\n            this.toggleTracking();\n        }\n\n        /**\n         * start/stop tracking\n         */\n        toggleTracking() {\n            if (this.player_.duration() === Infinity && this.liveWindow() >= this.options_.trackingThreshold) {\n                if (this.player_.options_.liveui) {\n                    this.player_.addClass('vjs-liveui');\n                }\n                this.startTracking();\n            } else {\n                this.player_.removeClass('vjs-liveui');\n                this.stopTracking();\n            }\n        }\n\n        /**\n         * start tracking live playback\n         */\n        startTracking() {\n            if (this.isTracking()) {\n                return;\n            }\n\n            // If we haven't seen a timeupdate, we need to check whether playback\n            // began before this component started tracking. This can happen commonly\n            // when using autoplay.\n            if (!this.timeupdateSeen_) {\n                this.timeupdateSeen_ = this.player_.hasStarted();\n            }\n            this.trackingInterval_ = this.setInterval(this.trackLiveHandler_, UPDATE_REFRESH_INTERVAL);\n            this.trackLive_();\n            this.on(this.player_, ['play', 'pause'], this.trackLiveHandler_);\n            if (!this.timeupdateSeen_) {\n                this.one(this.player_, 'play', this.handlePlay_);\n                this.one(this.player_, 'timeupdate', this.handleFirstTimeupdate_);\n            } else {\n                this.on(this.player_, 'seeked', this.handleSeeked_);\n            }\n        }\n\n        /**\n         * handle the first timeupdate on the player if it wasn't already playing\n         * when live tracker started tracking.\n         */\n        handleFirstTimeupdate() {\n            this.timeupdateSeen_ = true;\n            this.on(this.player_, 'seeked', this.handleSeeked_);\n        }\n\n        /**\n         * Keep track of what time a seek starts, and listen for seeked\n         * to find where a seek ends.\n         */\n        handleSeeked() {\n            const timeDiff = Math.abs(this.liveCurrentTime() - this.player_.currentTime());\n            this.seekedBehindLive_ = this.nextSeekedFromUser_ && timeDiff > 2;\n            this.nextSeekedFromUser_ = false;\n            this.trackLive_();\n        }\n\n        /**\n         * handle the first play on the player, and make sure that we seek\n         * right to the live edge.\n         */\n        handlePlay() {\n            this.one(this.player_, 'timeupdate', this.seekToLiveEdge_);\n        }\n\n        /**\n         * Stop tracking, and set all internal variables to\n         * their initial value.\n         */\n        reset_() {\n            this.lastTime_ = -1;\n            this.pastSeekEnd_ = 0;\n            this.lastSeekEnd_ = -1;\n            this.behindLiveEdge_ = true;\n            this.timeupdateSeen_ = false;\n            this.seekedBehindLive_ = false;\n            this.nextSeekedFromUser_ = false;\n            this.clearInterval(this.trackingInterval_);\n            this.trackingInterval_ = null;\n            this.off(this.player_, ['play', 'pause'], this.trackLiveHandler_);\n            this.off(this.player_, 'seeked', this.handleSeeked_);\n            this.off(this.player_, 'play', this.handlePlay_);\n            this.off(this.player_, 'timeupdate', this.handleFirstTimeupdate_);\n            this.off(this.player_, 'timeupdate', this.seekToLiveEdge_);\n        }\n\n        /**\n         * The next seeked event is from the user. Meaning that any seek\n         * > 2s behind live will be considered behind live for real and\n         * liveTolerance will be ignored.\n         */\n        nextSeekedFromUser() {\n            this.nextSeekedFromUser_ = true;\n        }\n\n        /**\n         * stop tracking live playback\n         */\n        stopTracking() {\n            if (!this.isTracking()) {\n                return;\n            }\n            this.reset_();\n            this.trigger('liveedgechange');\n        }\n\n        /**\n         * A helper to get the player seekable end\n         * so that we don't have to null check everywhere\n         *\n         * @return {number}\n         *         The furthest seekable end or Infinity.\n         */\n        seekableEnd() {\n            const seekable = this.player_.seekable();\n            const seekableEnds = [];\n            let i = seekable ? seekable.length : 0;\n            while (i--) {\n                seekableEnds.push(seekable.end(i));\n            }\n\n            // grab the furthest seekable end after sorting, or if there are none\n            // default to Infinity\n            return seekableEnds.length ? seekableEnds.sort()[seekableEnds.length - 1] : Infinity;\n        }\n\n        /**\n         * A helper to get the player seekable start\n         * so that we don't have to null check everywhere\n         *\n         * @return {number}\n         *         The earliest seekable start or 0.\n         */\n        seekableStart() {\n            const seekable = this.player_.seekable();\n            const seekableStarts = [];\n            let i = seekable ? seekable.length : 0;\n            while (i--) {\n                seekableStarts.push(seekable.start(i));\n            }\n\n            // grab the first seekable start after sorting, or if there are none\n            // default to 0\n            return seekableStarts.length ? seekableStarts.sort()[0] : 0;\n        }\n\n        /**\n         * Get the live time window aka\n         * the amount of time between seekable start and\n         * live current time.\n         *\n         * @return {number}\n         *         The amount of seconds that are seekable in\n         *         the live video.\n         */\n        liveWindow() {\n            const liveCurrentTime = this.liveCurrentTime();\n\n            // if liveCurrenTime is Infinity then we don't have a liveWindow at all\n            if (liveCurrentTime === Infinity) {\n                return 0;\n            }\n            return liveCurrentTime - this.seekableStart();\n        }\n\n        /**\n         * Determines if the player is live, only checks if this component\n         * is tracking live playback or not\n         *\n         * @return {boolean}\n         *         Whether liveTracker is tracking\n         */\n        isLive() {\n            return this.isTracking();\n        }\n\n        /**\n         * Determines if currentTime is at the live edge and won't fall behind\n         * on each seekableendchange\n         *\n         * @return {boolean}\n         *         Whether playback is at the live edge\n         */\n        atLiveEdge() {\n            return !this.behindLiveEdge();\n        }\n\n        /**\n         * get what we expect the live current time to be\n         *\n         * @return {number}\n         *         The expected live current time\n         */\n        liveCurrentTime() {\n            return this.pastSeekEnd() + this.seekableEnd();\n        }\n\n        /**\n         * The number of seconds that have occurred after seekable end\n         * changed. This will be reset to 0 once seekable end changes.\n         *\n         * @return {number}\n         *         Seconds past the current seekable end\n         */\n        pastSeekEnd() {\n            const seekableEnd = this.seekableEnd();\n            if (this.lastSeekEnd_ !== -1 && seekableEnd !== this.lastSeekEnd_) {\n                this.pastSeekEnd_ = 0;\n            }\n            this.lastSeekEnd_ = seekableEnd;\n            return this.pastSeekEnd_;\n        }\n\n        /**\n         * If we are currently behind the live edge, aka currentTime will be\n         * behind on a seekableendchange\n         *\n         * @return {boolean}\n         *         If we are behind the live edge\n         */\n        behindLiveEdge() {\n            return this.behindLiveEdge_;\n        }\n\n        /**\n         * Whether live tracker is currently tracking or not.\n         */\n        isTracking() {\n            return typeof this.trackingInterval_ === 'number';\n        }\n\n        /**\n         * Seek to the live edge if we are behind the live edge\n         */\n        seekToLiveEdge() {\n            this.seekedBehindLive_ = false;\n            if (this.atLiveEdge()) {\n                return;\n            }\n            this.nextSeekedFromUser_ = false;\n            this.player_.currentTime(this.liveCurrentTime());\n        }\n\n        /**\n         * Dispose of liveTracker\n         */\n        dispose() {\n            this.stopTracking();\n            super.dispose();\n        }\n    }\n    Component$1.registerComponent('LiveTracker', LiveTracker);\n\n    /**\n     * Displays an element over the player which contains an optional title and\n     * description for the current content.\n     *\n     * Much of the code for this component originated in the now obsolete\n     * videojs-dock plugin: https://github.com/brightcove/videojs-dock/\n     *\n     * @extends Component\n     */\n    class TitleBar extends Component$1 {\n        constructor(player, options) {\n            super(player, options);\n            this.on('statechanged', e => this.updateDom_());\n            this.updateDom_();\n        }\n\n        /**\n         * Create the `TitleBar`'s DOM element\n         *\n         * @return {Element}\n         *         The element that was created.\n         */\n        createEl() {\n            this.els = {\n                title: createEl('div', {\n                    className: 'vjs-title-bar-title',\n                    id: `vjs-title-bar-title-${newGUID()}`\n                }),\n                description: createEl('div', {\n                    className: 'vjs-title-bar-description',\n                    id: `vjs-title-bar-description-${newGUID()}`\n                })\n            };\n            return createEl('div', {\n                className: 'vjs-title-bar'\n            }, {}, Object.values(this.els));\n        }\n\n        /**\n         * Updates the DOM based on the component's state object.\n         */\n        updateDom_() {\n            const tech = this.player_.tech_;\n            const techEl = tech && tech.el_;\n            const techAriaAttrs = {\n                title: 'aria-labelledby',\n                description: 'aria-describedby'\n            };\n            ['title', 'description'].forEach(k => {\n                const value = this.state[k];\n                const el = this.els[k];\n                const techAriaAttr = techAriaAttrs[k];\n                emptyEl(el);\n                if (value) {\n                    textContent(el, value);\n                }\n\n                // If there is a tech element available, update its ARIA attributes\n                // according to whether a title and/or description have been provided.\n                if (techEl) {\n                    techEl.removeAttribute(techAriaAttr);\n                    if (value) {\n                        techEl.setAttribute(techAriaAttr, el.id);\n                    }\n                }\n            });\n            if (this.state.title || this.state.description) {\n                this.show();\n            } else {\n                this.hide();\n            }\n        }\n\n        /**\n         * Update the contents of the title bar component with new title and\n         * description text.\n         *\n         * If both title and description are missing, the title bar will be hidden.\n         *\n         * If either title or description are present, the title bar will be visible.\n         *\n         * NOTE: Any previously set value will be preserved. To unset a previously\n         * set value, you must pass an empty string or null.\n         *\n         * For example:\n         *\n         * ```\n         * update({title: 'foo', description: 'bar'}) // title: 'foo', description: 'bar'\n         * update({description: 'bar2'}) // title: 'foo', description: 'bar2'\n         * update({title: ''}) // title: '', description: 'bar2'\n         * update({title: 'foo', description: null}) // title: 'foo', description: null\n         * ```\n         *\n         * @param  {Object} [options={}]\n         *         An options object. When empty, the title bar will be hidden.\n         *\n         * @param  {string} [options.title]\n         *         A title to display in the title bar.\n         *\n         * @param  {string} [options.description]\n         *         A description to display in the title bar.\n         */\n        update(options) {\n            this.setState(options);\n        }\n\n        /**\n         * Dispose the component.\n         */\n        dispose() {\n            const tech = this.player_.tech_;\n            const techEl = tech && tech.el_;\n            if (techEl) {\n                techEl.removeAttribute('aria-labelledby');\n                techEl.removeAttribute('aria-describedby');\n            }\n            super.dispose();\n            this.els = null;\n        }\n    }\n    Component$1.registerComponent('TitleBar', TitleBar);\n\n    /**\n     * This function is used to fire a sourceset when there is something\n     * similar to `mediaEl.load()` being called. It will try to find the source via\n     * the `src` attribute and then the `<source>` elements. It will then fire `sourceset`\n     * with the source that was found or empty string if we cannot know. If it cannot\n     * find a source then `sourceset` will not be fired.\n     *\n     * @param { import('./html5').default } tech\n     *        The tech object that sourceset was setup on\n     *\n     * @return {boolean}\n     *         returns false if the sourceset was not fired and true otherwise.\n     */\n    const sourcesetLoad = tech => {\n        const el = tech.el();\n\n        // if `el.src` is set, that source will be loaded.\n        if (el.hasAttribute('src')) {\n            tech.triggerSourceset(el.src);\n            return true;\n        }\n\n        /**\n         * Since there isn't a src property on the media element, source elements will be used for\n         * implementing the source selection algorithm. This happens asynchronously and\n         * for most cases were there is more than one source we cannot tell what source will\n         * be loaded, without re-implementing the source selection algorithm. At this time we are not\n         * going to do that. There are three special cases that we do handle here though:\n         *\n         * 1. If there are no sources, do not fire `sourceset`.\n         * 2. If there is only one `<source>` with a `src` property/attribute that is our `src`\n         * 3. If there is more than one `<source>` but all of them have the same `src` url.\n         *    That will be our src.\n         */\n        const sources = tech.$$('source');\n        const srcUrls = [];\n        let src = '';\n\n        // if there are no sources, do not fire sourceset\n        if (!sources.length) {\n            return false;\n        }\n\n        // only count valid/non-duplicate source elements\n        for (let i = 0; i < sources.length; i++) {\n            const url = sources[i].src;\n            if (url && srcUrls.indexOf(url) === -1) {\n                srcUrls.push(url);\n            }\n        }\n\n        // there were no valid sources\n        if (!srcUrls.length) {\n            return false;\n        }\n\n        // there is only one valid source element url\n        // use that\n        if (srcUrls.length === 1) {\n            src = srcUrls[0];\n        }\n        tech.triggerSourceset(src);\n        return true;\n    };\n\n    /**\n     * our implementation of an `innerHTML` descriptor for browsers\n     * that do not have one.\n     */\n    const innerHTMLDescriptorPolyfill = Object.defineProperty({}, 'innerHTML', {\n        get() {\n            return this.cloneNode(true).innerHTML;\n        },\n        set(v) {\n            // make a dummy node to use innerHTML on\n            const dummy = document.createElement(this.nodeName.toLowerCase());\n\n            // set innerHTML to the value provided\n            dummy.innerHTML = v;\n\n            // make a document fragment to hold the nodes from dummy\n            const docFrag = document.createDocumentFragment();\n\n            // copy all of the nodes created by the innerHTML on dummy\n            // to the document fragment\n            while (dummy.childNodes.length) {\n                docFrag.appendChild(dummy.childNodes[0]);\n            }\n\n            // remove content\n            this.innerText = '';\n\n            // now we add all of that html in one by appending the\n            // document fragment. This is how innerHTML does it.\n            window.Element.prototype.appendChild.call(this, docFrag);\n\n            // then return the result that innerHTML's setter would\n            return this.innerHTML;\n        }\n    });\n\n    /**\n     * Get a property descriptor given a list of priorities and the\n     * property to get.\n     */\n    const getDescriptor = (priority, prop) => {\n        let descriptor = {};\n        for (let i = 0; i < priority.length; i++) {\n            descriptor = Object.getOwnPropertyDescriptor(priority[i], prop);\n            if (descriptor && descriptor.set && descriptor.get) {\n                break;\n            }\n        }\n        descriptor.enumerable = true;\n        descriptor.configurable = true;\n        return descriptor;\n    };\n    const getInnerHTMLDescriptor = tech => getDescriptor([tech.el(), window.HTMLMediaElement.prototype, window.Element.prototype, innerHTMLDescriptorPolyfill], 'innerHTML');\n\n    /**\n     * Patches browser internal functions so that we can tell synchronously\n     * if a `<source>` was appended to the media element. For some reason this\n     * causes a `sourceset` if the the media element is ready and has no source.\n     * This happens when:\n     * - The page has just loaded and the media element does not have a source.\n     * - The media element was emptied of all sources, then `load()` was called.\n     *\n     * It does this by patching the following functions/properties when they are supported:\n     *\n     * - `append()` - can be used to add a `<source>` element to the media element\n     * - `appendChild()` - can be used to add a `<source>` element to the media element\n     * - `insertAdjacentHTML()` -  can be used to add a `<source>` element to the media element\n     * - `innerHTML` -  can be used to add a `<source>` element to the media element\n     *\n     * @param {Html5} tech\n     *        The tech object that sourceset is being setup on.\n     */\n    const firstSourceWatch = function (tech) {\n        const el = tech.el();\n\n        // make sure firstSourceWatch isn't setup twice.\n        if (el.resetSourceWatch_) {\n            return;\n        }\n        const old = {};\n        const innerDescriptor = getInnerHTMLDescriptor(tech);\n        const appendWrapper = appendFn => (...args) => {\n            const retval = appendFn.apply(el, args);\n            sourcesetLoad(tech);\n            return retval;\n        };\n        ['append', 'appendChild', 'insertAdjacentHTML'].forEach(k => {\n            if (!el[k]) {\n                return;\n            }\n\n            // store the old function\n            old[k] = el[k];\n\n            // call the old function with a sourceset if a source\n            // was loaded\n            el[k] = appendWrapper(old[k]);\n        });\n        Object.defineProperty(el, 'innerHTML', merge$2(innerDescriptor, {\n            set: appendWrapper(innerDescriptor.set)\n        }));\n        el.resetSourceWatch_ = () => {\n            el.resetSourceWatch_ = null;\n            Object.keys(old).forEach(k => {\n                el[k] = old[k];\n            });\n            Object.defineProperty(el, 'innerHTML', innerDescriptor);\n        };\n\n        // on the first sourceset, we need to revert our changes\n        tech.one('sourceset', el.resetSourceWatch_);\n    };\n\n    /**\n     * our implementation of a `src` descriptor for browsers\n     * that do not have one\n     */\n    const srcDescriptorPolyfill = Object.defineProperty({}, 'src', {\n        get() {\n            if (this.hasAttribute('src')) {\n                return getAbsoluteURL(window.Element.prototype.getAttribute.call(this, 'src'));\n            }\n            return '';\n        },\n        set(v) {\n            window.Element.prototype.setAttribute.call(this, 'src', v);\n            return v;\n        }\n    });\n    const getSrcDescriptor = tech => getDescriptor([tech.el(), window.HTMLMediaElement.prototype, srcDescriptorPolyfill], 'src');\n\n    /**\n     * setup `sourceset` handling on the `Html5` tech. This function\n     * patches the following element properties/functions:\n     *\n     * - `src` - to determine when `src` is set\n     * - `setAttribute()` - to determine when `src` is set\n     * - `load()` - this re-triggers the source selection algorithm, and can\n     *              cause a sourceset.\n     *\n     * If there is no source when we are adding `sourceset` support or during a `load()`\n     * we also patch the functions listed in `firstSourceWatch`.\n     *\n     * @param {Html5} tech\n     *        The tech to patch\n     */\n    const setupSourceset = function (tech) {\n        if (!tech.featuresSourceset) {\n            return;\n        }\n        const el = tech.el();\n\n        // make sure sourceset isn't setup twice.\n        if (el.resetSourceset_) {\n            return;\n        }\n        const srcDescriptor = getSrcDescriptor(tech);\n        const oldSetAttribute = el.setAttribute;\n        const oldLoad = el.load;\n        Object.defineProperty(el, 'src', merge$2(srcDescriptor, {\n            set: v => {\n                const retval = srcDescriptor.set.call(el, v);\n\n                // we use the getter here to get the actual value set on src\n                tech.triggerSourceset(el.src);\n                return retval;\n            }\n        }));\n        el.setAttribute = (n, v) => {\n            const retval = oldSetAttribute.call(el, n, v);\n            if (/src/i.test(n)) {\n                tech.triggerSourceset(el.src);\n            }\n            return retval;\n        };\n        el.load = () => {\n            const retval = oldLoad.call(el);\n\n            // if load was called, but there was no source to fire\n            // sourceset on. We have to watch for a source append\n            // as that can trigger a `sourceset` when the media element\n            // has no source\n            if (!sourcesetLoad(tech)) {\n                tech.triggerSourceset('');\n                firstSourceWatch(tech);\n            }\n            return retval;\n        };\n        if (el.currentSrc) {\n            tech.triggerSourceset(el.currentSrc);\n        } else if (!sourcesetLoad(tech)) {\n            firstSourceWatch(tech);\n        }\n        el.resetSourceset_ = () => {\n            el.resetSourceset_ = null;\n            el.load = oldLoad;\n            el.setAttribute = oldSetAttribute;\n            Object.defineProperty(el, 'src', srcDescriptor);\n            if (el.resetSourceWatch_) {\n                el.resetSourceWatch_();\n            }\n        };\n    };\n\n    /**\n     * @file html5.js\n     */\n\n    /**\n     * HTML5 Media Controller - Wrapper for HTML5 Media API\n     *\n     * @mixes Tech~SourceHandlerAdditions\n     * @extends Tech\n     */\n    class Html5 extends Tech {\n        /**\n         * Create an instance of this Tech.\n         *\n         * @param {Object} [options]\n         *        The key/value store of player options.\n         *\n         * @param {Function} [ready]\n         *        Callback function to call when the `HTML5` Tech is ready.\n         */\n        constructor(options, ready) {\n            super(options, ready);\n            const source = options.source;\n            let crossoriginTracks = false;\n            this.featuresVideoFrameCallback = this.featuresVideoFrameCallback && this.el_.tagName === 'VIDEO';\n\n            // Set the source if one is provided\n            // 1) Check if the source is new (if not, we want to keep the original so playback isn't interrupted)\n            // 2) Check to see if the network state of the tag was failed at init, and if so, reset the source\n            // anyway so the error gets fired.\n            if (source && (this.el_.currentSrc !== source.src || options.tag && options.tag.initNetworkState_ === 3)) {\n                this.setSource(source);\n            } else {\n                this.handleLateInit_(this.el_);\n            }\n\n            // setup sourceset after late sourceset/init\n            if (options.enableSourceset) {\n                this.setupSourcesetHandling_();\n            }\n            this.isScrubbing_ = false;\n            if (this.el_.hasChildNodes()) {\n                const nodes = this.el_.childNodes;\n                let nodesLength = nodes.length;\n                const removeNodes = [];\n                while (nodesLength--) {\n                    const node = nodes[nodesLength];\n                    const nodeName = node.nodeName.toLowerCase();\n                    if (nodeName === 'track') {\n                        if (!this.featuresNativeTextTracks) {\n                            // Empty video tag tracks so the built-in player doesn't use them also.\n                            // This may not be fast enough to stop HTML5 browsers from reading the tags\n                            // so we'll need to turn off any default tracks if we're manually doing\n                            // captions and subtitles. videoElement.textTracks\n                            removeNodes.push(node);\n                        } else {\n                            // store HTMLTrackElement and TextTrack to remote list\n                            this.remoteTextTrackEls().addTrackElement_(node);\n                            this.remoteTextTracks().addTrack(node.track);\n                            this.textTracks().addTrack(node.track);\n                            if (!crossoriginTracks && !this.el_.hasAttribute('crossorigin') && isCrossOrigin(node.src)) {\n                                crossoriginTracks = true;\n                            }\n                        }\n                    }\n                }\n                for (let i = 0; i < removeNodes.length; i++) {\n                    this.el_.removeChild(removeNodes[i]);\n                }\n            }\n            this.proxyNativeTracks_();\n            if (this.featuresNativeTextTracks && crossoriginTracks) {\n                log$1.warn('Text Tracks are being loaded from another origin but the crossorigin attribute isn\\'t used.\\n' + 'This may prevent text tracks from loading.');\n            }\n\n            // prevent iOS Safari from disabling metadata text tracks during native playback\n            this.restoreMetadataTracksInIOSNativePlayer_();\n\n            // Determine if native controls should be used\n            // Our goal should be to get the custom controls on mobile solid everywhere\n            // so we can remove this all together. Right now this will block custom\n            // controls on touch enabled laptops like the Chrome Pixel\n            if ((TOUCH_ENABLED || IS_IPHONE) && options.nativeControlsForTouch === true) {\n                this.setControls(true);\n            }\n\n            // on iOS, we want to proxy `webkitbeginfullscreen` and `webkitendfullscreen`\n            // into a `fullscreenchange` event\n            this.proxyWebkitFullscreen_();\n            this.triggerReady();\n        }\n\n        /**\n         * Dispose of `HTML5` media element and remove all tracks.\n         */\n        dispose() {\n            if (this.el_ && this.el_.resetSourceset_) {\n                this.el_.resetSourceset_();\n            }\n            Html5.disposeMediaElement(this.el_);\n            this.options_ = null;\n\n            // tech will handle clearing of the emulated track list\n            super.dispose();\n        }\n\n        /**\n         * Modify the media element so that we can detect when\n         * the source is changed. Fires `sourceset` just after the source has changed\n         */\n        setupSourcesetHandling_() {\n            setupSourceset(this);\n        }\n\n        /**\n         * When a captions track is enabled in the iOS Safari native player, all other\n         * tracks are disabled (including metadata tracks), which nulls all of their\n         * associated cue points. This will restore metadata tracks to their pre-fullscreen\n         * state in those cases so that cue points are not needlessly lost.\n         *\n         * @private\n         */\n        restoreMetadataTracksInIOSNativePlayer_() {\n            const textTracks = this.textTracks();\n            let metadataTracksPreFullscreenState;\n\n            // captures a snapshot of every metadata track's current state\n            const takeMetadataTrackSnapshot = () => {\n                metadataTracksPreFullscreenState = [];\n                for (let i = 0; i < textTracks.length; i++) {\n                    const track = textTracks[i];\n                    if (track.kind === 'metadata') {\n                        metadataTracksPreFullscreenState.push({\n                            track,\n                            storedMode: track.mode\n                        });\n                    }\n                }\n            };\n\n            // snapshot each metadata track's initial state, and update the snapshot\n            // each time there is a track 'change' event\n            takeMetadataTrackSnapshot();\n            textTracks.addEventListener('change', takeMetadataTrackSnapshot);\n            this.on('dispose', () => textTracks.removeEventListener('change', takeMetadataTrackSnapshot));\n            const restoreTrackMode = () => {\n                for (let i = 0; i < metadataTracksPreFullscreenState.length; i++) {\n                    const storedTrack = metadataTracksPreFullscreenState[i];\n                    if (storedTrack.track.mode === 'disabled' && storedTrack.track.mode !== storedTrack.storedMode) {\n                        storedTrack.track.mode = storedTrack.storedMode;\n                    }\n                }\n                // we only want this handler to be executed on the first 'change' event\n                textTracks.removeEventListener('change', restoreTrackMode);\n            };\n\n            // when we enter fullscreen playback, stop updating the snapshot and\n            // restore all track modes to their pre-fullscreen state\n            this.on('webkitbeginfullscreen', () => {\n                textTracks.removeEventListener('change', takeMetadataTrackSnapshot);\n\n                // remove the listener before adding it just in case it wasn't previously removed\n                textTracks.removeEventListener('change', restoreTrackMode);\n                textTracks.addEventListener('change', restoreTrackMode);\n            });\n\n            // start updating the snapshot again after leaving fullscreen\n            this.on('webkitendfullscreen', () => {\n                // remove the listener before adding it just in case it wasn't previously removed\n                textTracks.removeEventListener('change', takeMetadataTrackSnapshot);\n                textTracks.addEventListener('change', takeMetadataTrackSnapshot);\n\n                // remove the restoreTrackMode handler in case it wasn't triggered during fullscreen playback\n                textTracks.removeEventListener('change', restoreTrackMode);\n            });\n        }\n\n        /**\n         * Attempt to force override of tracks for the given type\n         *\n         * @param {string} type - Track type to override, possible values include 'Audio',\n         * 'Video', and 'Text'.\n         * @param {boolean} override - If set to true native audio/video will be overridden,\n         * otherwise native audio/video will potentially be used.\n         * @private\n         */\n        overrideNative_(type, override) {\n            // If there is no behavioral change don't add/remove listeners\n            if (override !== this[`featuresNative${type}Tracks`]) {\n                return;\n            }\n            const lowerCaseType = type.toLowerCase();\n            if (this[`${lowerCaseType}TracksListeners_`]) {\n                Object.keys(this[`${lowerCaseType}TracksListeners_`]).forEach(eventName => {\n                    const elTracks = this.el()[`${lowerCaseType}Tracks`];\n                    elTracks.removeEventListener(eventName, this[`${lowerCaseType}TracksListeners_`][eventName]);\n                });\n            }\n            this[`featuresNative${type}Tracks`] = !override;\n            this[`${lowerCaseType}TracksListeners_`] = null;\n            this.proxyNativeTracksForType_(lowerCaseType);\n        }\n\n        /**\n         * Attempt to force override of native audio tracks.\n         *\n         * @param {boolean} override - If set to true native audio will be overridden,\n         * otherwise native audio will potentially be used.\n         */\n        overrideNativeAudioTracks(override) {\n            this.overrideNative_('Audio', override);\n        }\n\n        /**\n         * Attempt to force override of native video tracks.\n         *\n         * @param {boolean} override - If set to true native video will be overridden,\n         * otherwise native video will potentially be used.\n         */\n        overrideNativeVideoTracks(override) {\n            this.overrideNative_('Video', override);\n        }\n\n        /**\n         * Proxy native track list events for the given type to our track\n         * lists if the browser we are playing in supports that type of track list.\n         *\n         * @param {string} name - Track type; values include 'audio', 'video', and 'text'\n         * @private\n         */\n        proxyNativeTracksForType_(name) {\n            const props = NORMAL[name];\n            const elTracks = this.el()[props.getterName];\n            const techTracks = this[props.getterName]();\n            if (!this[`featuresNative${props.capitalName}Tracks`] || !elTracks || !elTracks.addEventListener) {\n                return;\n            }\n            const listeners = {\n                change: e => {\n                    const event = {\n                        type: 'change',\n                        target: techTracks,\n                        currentTarget: techTracks,\n                        srcElement: techTracks\n                    };\n                    techTracks.trigger(event);\n\n                    // if we are a text track change event, we should also notify the\n                    // remote text track list. This can potentially cause a false positive\n                    // if we were to get a change event on a non-remote track and\n                    // we triggered the event on the remote text track list which doesn't\n                    // contain that track. However, best practices mean looping through the\n                    // list of tracks and searching for the appropriate mode value, so,\n                    // this shouldn't pose an issue\n                    if (name === 'text') {\n                        this[REMOTE.remoteText.getterName]().trigger(event);\n                    }\n                },\n                addtrack(e) {\n                    techTracks.addTrack(e.track);\n                },\n                removetrack(e) {\n                    techTracks.removeTrack(e.track);\n                }\n            };\n            const removeOldTracks = function () {\n                const removeTracks = [];\n                for (let i = 0; i < techTracks.length; i++) {\n                    let found = false;\n                    for (let j = 0; j < elTracks.length; j++) {\n                        if (elTracks[j] === techTracks[i]) {\n                            found = true;\n                            break;\n                        }\n                    }\n                    if (!found) {\n                        removeTracks.push(techTracks[i]);\n                    }\n                }\n                while (removeTracks.length) {\n                    techTracks.removeTrack(removeTracks.shift());\n                }\n            };\n            this[props.getterName + 'Listeners_'] = listeners;\n            Object.keys(listeners).forEach(eventName => {\n                const listener = listeners[eventName];\n                elTracks.addEventListener(eventName, listener);\n                this.on('dispose', e => elTracks.removeEventListener(eventName, listener));\n            });\n\n            // Remove (native) tracks that are not used anymore\n            this.on('loadstart', removeOldTracks);\n            this.on('dispose', e => this.off('loadstart', removeOldTracks));\n        }\n\n        /**\n         * Proxy all native track list events to our track lists if the browser we are playing\n         * in supports that type of track list.\n         *\n         * @private\n         */\n        proxyNativeTracks_() {\n            NORMAL.names.forEach(name => {\n                this.proxyNativeTracksForType_(name);\n            });\n        }\n\n        /**\n         * Create the `Html5` Tech's DOM element.\n         *\n         * @return {Element}\n         *         The element that gets created.\n         */\n        createEl() {\n            let el = this.options_.tag;\n\n            // Check if this browser supports moving the element into the box.\n            // On the iPhone video will break if you move the element,\n            // So we have to create a brand new element.\n            // If we ingested the player div, we do not need to move the media element.\n            if (!el || !(this.options_.playerElIngest || this.movingMediaElementInDOM)) {\n                // If the original tag is still there, clone and remove it.\n                if (el) {\n                    const clone = el.cloneNode(true);\n                    if (el.parentNode) {\n                        el.parentNode.insertBefore(clone, el);\n                    }\n                    Html5.disposeMediaElement(el);\n                    el = clone;\n                } else {\n                    el = document.createElement('video');\n\n                    // determine if native controls should be used\n                    const tagAttributes = this.options_.tag && getAttributes(this.options_.tag);\n                    const attributes = merge$2({}, tagAttributes);\n                    if (!TOUCH_ENABLED || this.options_.nativeControlsForTouch !== true) {\n                        delete attributes.controls;\n                    }\n                    setAttributes(el, Object.assign(attributes, {\n                        id: this.options_.techId,\n                        class: 'vjs-tech'\n                    }));\n                }\n                el.playerId = this.options_.playerId;\n            }\n            if (typeof this.options_.preload !== 'undefined') {\n                setAttribute(el, 'preload', this.options_.preload);\n            }\n            if (this.options_.disablePictureInPicture !== undefined) {\n                el.disablePictureInPicture = this.options_.disablePictureInPicture;\n            }\n\n            // Update specific tag settings, in case they were overridden\n            // `autoplay` has to be *last* so that `muted` and `playsinline` are present\n            // when iOS/Safari or other browsers attempt to autoplay.\n            const settingsAttrs = ['loop', 'muted', 'playsinline', 'autoplay'];\n            for (let i = 0; i < settingsAttrs.length; i++) {\n                const attr = settingsAttrs[i];\n                const value = this.options_[attr];\n                if (typeof value !== 'undefined') {\n                    if (value) {\n                        setAttribute(el, attr, attr);\n                    } else {\n                        removeAttribute(el, attr);\n                    }\n                    el[attr] = value;\n                }\n            }\n            return el;\n        }\n\n        /**\n         * This will be triggered if the loadstart event has already fired, before videojs was\n         * ready. Two known examples of when this can happen are:\n         * 1. If we're loading the playback object after it has started loading\n         * 2. The media is already playing the (often with autoplay on) then\n         *\n         * This function will fire another loadstart so that videojs can catchup.\n         *\n         * @fires Tech#loadstart\n         *\n         * @return {undefined}\n         *         returns nothing.\n         */\n        handleLateInit_(el) {\n            if (el.networkState === 0 || el.networkState === 3) {\n                // The video element hasn't started loading the source yet\n                // or didn't find a source\n                return;\n            }\n            if (el.readyState === 0) {\n                // NetworkState is set synchronously BUT loadstart is fired at the\n                // end of the current stack, usually before setInterval(fn, 0).\n                // So at this point we know loadstart may have already fired or is\n                // about to fire, and either way the player hasn't seen it yet.\n                // We don't want to fire loadstart prematurely here and cause a\n                // double loadstart so we'll wait and see if it happens between now\n                // and the next loop, and fire it if not.\n                // HOWEVER, we also want to make sure it fires before loadedmetadata\n                // which could also happen between now and the next loop, so we'll\n                // watch for that also.\n                let loadstartFired = false;\n                const setLoadstartFired = function () {\n                    loadstartFired = true;\n                };\n                this.on('loadstart', setLoadstartFired);\n                const triggerLoadstart = function () {\n                    // We did miss the original loadstart. Make sure the player\n                    // sees loadstart before loadedmetadata\n                    if (!loadstartFired) {\n                        this.trigger('loadstart');\n                    }\n                };\n                this.on('loadedmetadata', triggerLoadstart);\n                this.ready(function () {\n                    this.off('loadstart', setLoadstartFired);\n                    this.off('loadedmetadata', triggerLoadstart);\n                    if (!loadstartFired) {\n                        // We did miss the original native loadstart. Fire it now.\n                        this.trigger('loadstart');\n                    }\n                });\n                return;\n            }\n\n            // From here on we know that loadstart already fired and we missed it.\n            // The other readyState events aren't as much of a problem if we double\n            // them, so not going to go to as much trouble as loadstart to prevent\n            // that unless we find reason to.\n            const eventsToTrigger = ['loadstart'];\n\n            // loadedmetadata: newly equal to HAVE_METADATA (1) or greater\n            eventsToTrigger.push('loadedmetadata');\n\n            // loadeddata: newly increased to HAVE_CURRENT_DATA (2) or greater\n            if (el.readyState >= 2) {\n                eventsToTrigger.push('loadeddata');\n            }\n\n            // canplay: newly increased to HAVE_FUTURE_DATA (3) or greater\n            if (el.readyState >= 3) {\n                eventsToTrigger.push('canplay');\n            }\n\n            // canplaythrough: newly equal to HAVE_ENOUGH_DATA (4)\n            if (el.readyState >= 4) {\n                eventsToTrigger.push('canplaythrough');\n            }\n\n            // We still need to give the player time to add event listeners\n            this.ready(function () {\n                eventsToTrigger.forEach(function (type) {\n                    this.trigger(type);\n                }, this);\n            });\n        }\n\n        /**\n         * Set whether we are scrubbing or not.\n         * This is used to decide whether we should use `fastSeek` or not.\n         * `fastSeek` is used to provide trick play on Safari browsers.\n         *\n         * @param {boolean} isScrubbing\n         *                  - true for we are currently scrubbing\n         *                  - false for we are no longer scrubbing\n         */\n        setScrubbing(isScrubbing) {\n            this.isScrubbing_ = isScrubbing;\n        }\n\n        /**\n         * Get whether we are scrubbing or not.\n         *\n         * @return {boolean} isScrubbing\n         *                  - true for we are currently scrubbing\n         *                  - false for we are no longer scrubbing\n         */\n        scrubbing() {\n            return this.isScrubbing_;\n        }\n\n        /**\n         * Set current time for the `HTML5` tech.\n         *\n         * @param {number} seconds\n         *        Set the current time of the media to this.\n         */\n        setCurrentTime(seconds) {\n            try {\n                if (this.isScrubbing_ && this.el_.fastSeek && IS_ANY_SAFARI) {\n                    this.el_.fastSeek(seconds);\n                } else {\n                    this.el_.currentTime = seconds;\n                }\n            } catch (e) {\n                log$1(e, 'Video is not ready. (Video.js)');\n                // this.warning(VideoJS.warnings.videoNotReady);\n            }\n        }\n\n        /**\n         * Get the current duration of the HTML5 media element.\n         *\n         * @return {number}\n         *         The duration of the media or 0 if there is no duration.\n         */\n        duration() {\n            // Android Chrome will report duration as Infinity for VOD HLS until after\n            // playback has started, which triggers the live display erroneously.\n            // Return NaN if playback has not started and trigger a durationupdate once\n            // the duration can be reliably known.\n            if (this.el_.duration === Infinity && IS_ANDROID && IS_CHROME && this.el_.currentTime === 0) {\n                // Wait for the first `timeupdate` with currentTime > 0 - there may be\n                // several with 0\n                const checkProgress = () => {\n                    if (this.el_.currentTime > 0) {\n                        // Trigger durationchange for genuinely live video\n                        if (this.el_.duration === Infinity) {\n                            this.trigger('durationchange');\n                        }\n                        this.off('timeupdate', checkProgress);\n                    }\n                };\n                this.on('timeupdate', checkProgress);\n                return NaN;\n            }\n            return this.el_.duration || NaN;\n        }\n\n        /**\n         * Get the current width of the HTML5 media element.\n         *\n         * @return {number}\n         *         The width of the HTML5 media element.\n         */\n        width() {\n            return this.el_.offsetWidth;\n        }\n\n        /**\n         * Get the current height of the HTML5 media element.\n         *\n         * @return {number}\n         *         The height of the HTML5 media element.\n         */\n        height() {\n            return this.el_.offsetHeight;\n        }\n\n        /**\n         * Proxy iOS `webkitbeginfullscreen` and `webkitendfullscreen` into\n         * `fullscreenchange` event.\n         *\n         * @private\n         * @fires fullscreenchange\n         * @listens webkitendfullscreen\n         * @listens webkitbeginfullscreen\n         * @listens webkitbeginfullscreen\n         */\n        proxyWebkitFullscreen_() {\n            if (!('webkitDisplayingFullscreen' in this.el_)) {\n                return;\n            }\n            const endFn = function () {\n                this.trigger('fullscreenchange', {\n                    isFullscreen: false\n                });\n                // Safari will sometimes set controls on the videoelement when existing fullscreen.\n                if (this.el_.controls && !this.options_.nativeControlsForTouch && this.controls()) {\n                    this.el_.controls = false;\n                }\n            };\n            const beginFn = function () {\n                if ('webkitPresentationMode' in this.el_ && this.el_.webkitPresentationMode !== 'picture-in-picture') {\n                    this.one('webkitendfullscreen', endFn);\n                    this.trigger('fullscreenchange', {\n                        isFullscreen: true,\n                        // set a flag in case another tech triggers fullscreenchange\n                        nativeIOSFullscreen: true\n                    });\n                }\n            };\n            this.on('webkitbeginfullscreen', beginFn);\n            this.on('dispose', () => {\n                this.off('webkitbeginfullscreen', beginFn);\n                this.off('webkitendfullscreen', endFn);\n            });\n        }\n\n        /**\n         * Check if fullscreen is supported on the video el.\n         *\n         * @return {boolean}\n         *         - True if fullscreen is supported.\n         *         - False if fullscreen is not supported.\n         */\n        supportsFullScreen() {\n            return typeof this.el_.webkitEnterFullScreen === 'function';\n        }\n\n        /**\n         * Request that the `HTML5` Tech enter fullscreen.\n         */\n        enterFullScreen() {\n            const video = this.el_;\n            if (video.paused && video.networkState <= video.HAVE_METADATA) {\n                // attempt to prime the video element for programmatic access\n                // this isn't necessary on the desktop but shouldn't hurt\n                silencePromise(this.el_.play());\n\n                // playing and pausing synchronously during the transition to fullscreen\n                // can get iOS ~6.1 devices into a play/pause loop\n                this.setTimeout(function () {\n                    video.pause();\n                    try {\n                        video.webkitEnterFullScreen();\n                    } catch (e) {\n                        this.trigger('fullscreenerror', e);\n                    }\n                }, 0);\n            } else {\n                try {\n                    video.webkitEnterFullScreen();\n                } catch (e) {\n                    this.trigger('fullscreenerror', e);\n                }\n            }\n        }\n\n        /**\n         * Request that the `HTML5` Tech exit fullscreen.\n         */\n        exitFullScreen() {\n            if (!this.el_.webkitDisplayingFullscreen) {\n                this.trigger('fullscreenerror', new Error('The video is not fullscreen'));\n                return;\n            }\n            this.el_.webkitExitFullScreen();\n        }\n\n        /**\n         * Create a floating video window always on top of other windows so that users may\n         * continue consuming media while they interact with other content sites, or\n         * applications on their device.\n         *\n         * @see [Spec]{@link https://wicg.github.io/picture-in-picture}\n         *\n         * @return {Promise}\n         *         A promise with a Picture-in-Picture window.\n         */\n        requestPictureInPicture() {\n            return this.el_.requestPictureInPicture();\n        }\n\n        /**\n         * Native requestVideoFrameCallback if supported by browser/tech, or fallback\n         * Don't use rVCF on Safari when DRM is playing, as it doesn't fire\n         * Needs to be checked later than the constructor\n         * This will be a false positive for clear sources loaded after a Fairplay source\n         *\n         * @param {function} cb function to call\n         * @return {number} id of request\n         */\n        requestVideoFrameCallback(cb) {\n            if (this.featuresVideoFrameCallback && !this.el_.webkitKeys) {\n                return this.el_.requestVideoFrameCallback(cb);\n            }\n            return super.requestVideoFrameCallback(cb);\n        }\n\n        /**\n         * Native or fallback requestVideoFrameCallback\n         *\n         * @param {number} id request id to cancel\n         */\n        cancelVideoFrameCallback(id) {\n            if (this.featuresVideoFrameCallback && !this.el_.webkitKeys) {\n                this.el_.cancelVideoFrameCallback(id);\n            } else {\n                super.cancelVideoFrameCallback(id);\n            }\n        }\n\n        /**\n         * A getter/setter for the `Html5` Tech's source object.\n         * > Note: Please use {@link Html5#setSource}\n         *\n         * @param {Tech~SourceObject} [src]\n         *        The source object you want to set on the `HTML5` techs element.\n         *\n         * @return {Tech~SourceObject|undefined}\n         *         - The current source object when a source is not passed in.\n         *         - undefined when setting\n         *\n         * @deprecated Since version 5.\n         */\n        src(src) {\n            if (src === undefined) {\n                return this.el_.src;\n            }\n\n            // Setting src through `src` instead of `setSrc` will be deprecated\n            this.setSrc(src);\n        }\n\n        /**\n         * Reset the tech by removing all sources and then calling\n         * {@link Html5.resetMediaElement}.\n         */\n        reset() {\n            Html5.resetMediaElement(this.el_);\n        }\n\n        /**\n         * Get the current source on the `HTML5` Tech. Falls back to returning the source from\n         * the HTML5 media element.\n         *\n         * @return {Tech~SourceObject}\n         *         The current source object from the HTML5 tech. With a fallback to the\n         *         elements source.\n         */\n        currentSrc() {\n            if (this.currentSource_) {\n                return this.currentSource_.src;\n            }\n            return this.el_.currentSrc;\n        }\n\n        /**\n         * Set controls attribute for the HTML5 media Element.\n         *\n         * @param {string} val\n         *        Value to set the controls attribute to\n         */\n        setControls(val) {\n            this.el_.controls = !!val;\n        }\n\n        /**\n         * Create and returns a remote {@link TextTrack} object.\n         *\n         * @param {string} kind\n         *        `TextTrack` kind (subtitles, captions, descriptions, chapters, or metadata)\n         *\n         * @param {string} [label]\n         *        Label to identify the text track\n         *\n         * @param {string} [language]\n         *        Two letter language abbreviation\n         *\n         * @return {TextTrack}\n         *         The TextTrack that gets created.\n         */\n        addTextTrack(kind, label, language) {\n            if (!this.featuresNativeTextTracks) {\n                return super.addTextTrack(kind, label, language);\n            }\n            return this.el_.addTextTrack(kind, label, language);\n        }\n\n        /**\n         * Creates either native TextTrack or an emulated TextTrack depending\n         * on the value of `featuresNativeTextTracks`\n         *\n         * @param {Object} options\n         *        The object should contain the options to initialize the TextTrack with.\n         *\n         * @param {string} [options.kind]\n         *        `TextTrack` kind (subtitles, captions, descriptions, chapters, or metadata).\n         *\n         * @param {string} [options.label]\n         *        Label to identify the text track\n         *\n         * @param {string} [options.language]\n         *        Two letter language abbreviation.\n         *\n         * @param {boolean} [options.default]\n         *        Default this track to on.\n         *\n         * @param {string} [options.id]\n         *        The internal id to assign this track.\n         *\n         * @param {string} [options.src]\n         *        A source url for the track.\n         *\n         * @return {HTMLTrackElement}\n         *         The track element that gets created.\n         */\n        createRemoteTextTrack(options) {\n            if (!this.featuresNativeTextTracks) {\n                return super.createRemoteTextTrack(options);\n            }\n            const htmlTrackElement = document.createElement('track');\n            if (options.kind) {\n                htmlTrackElement.kind = options.kind;\n            }\n            if (options.label) {\n                htmlTrackElement.label = options.label;\n            }\n            if (options.language || options.srclang) {\n                htmlTrackElement.srclang = options.language || options.srclang;\n            }\n            if (options.default) {\n                htmlTrackElement.default = options.default;\n            }\n            if (options.id) {\n                htmlTrackElement.id = options.id;\n            }\n            if (options.src) {\n                htmlTrackElement.src = options.src;\n            }\n            return htmlTrackElement;\n        }\n\n        /**\n         * Creates a remote text track object and returns an html track element.\n         *\n         * @param {Object} options The object should contain values for\n         * kind, language, label, and src (location of the WebVTT file)\n         * @param {boolean} [manualCleanup=false] if set to true, the TextTrack\n         * will not be removed from the TextTrackList and HtmlTrackElementList\n         * after a source change\n         * @return {HTMLTrackElement} An Html Track Element.\n         * This can be an emulated {@link HTMLTrackElement} or a native one.\n         *\n         */\n        addRemoteTextTrack(options, manualCleanup) {\n            const htmlTrackElement = super.addRemoteTextTrack(options, manualCleanup);\n            if (this.featuresNativeTextTracks) {\n                this.el().appendChild(htmlTrackElement);\n            }\n            return htmlTrackElement;\n        }\n\n        /**\n         * Remove remote `TextTrack` from `TextTrackList` object\n         *\n         * @param {TextTrack} track\n         *        `TextTrack` object to remove\n         */\n        removeRemoteTextTrack(track) {\n            super.removeRemoteTextTrack(track);\n            if (this.featuresNativeTextTracks) {\n                const tracks = this.$$('track');\n                let i = tracks.length;\n                while (i--) {\n                    if (track === tracks[i] || track === tracks[i].track) {\n                        this.el().removeChild(tracks[i]);\n                    }\n                }\n            }\n        }\n\n        /**\n         * Gets available media playback quality metrics as specified by the W3C's Media\n         * Playback Quality API.\n         *\n         * @see [Spec]{@link https://wicg.github.io/media-playback-quality}\n         *\n         * @return {Object}\n         *         An object with supported media playback quality metrics\n         */\n        getVideoPlaybackQuality() {\n            if (typeof this.el().getVideoPlaybackQuality === 'function') {\n                return this.el().getVideoPlaybackQuality();\n            }\n            const videoPlaybackQuality = {};\n            if (typeof this.el().webkitDroppedFrameCount !== 'undefined' && typeof this.el().webkitDecodedFrameCount !== 'undefined') {\n                videoPlaybackQuality.droppedVideoFrames = this.el().webkitDroppedFrameCount;\n                videoPlaybackQuality.totalVideoFrames = this.el().webkitDecodedFrameCount;\n            }\n            if (window.performance) {\n                videoPlaybackQuality.creationTime = window.performance.now();\n            }\n            return videoPlaybackQuality;\n        }\n    }\n\n    /* HTML5 Support Testing ---------------------------------------------------- */\n\n    /**\n     * Element for testing browser HTML5 media capabilities\n     *\n     * @type {Element}\n     * @constant\n     * @private\n     */\n    defineLazyProperty(Html5, 'TEST_VID', function () {\n        if (!isReal()) {\n            return;\n        }\n        const video = document.createElement('video');\n        const track = document.createElement('track');\n        track.kind = 'captions';\n        track.srclang = 'en';\n        track.label = 'English';\n        video.appendChild(track);\n        return video;\n    });\n\n    /**\n     * Check if HTML5 media is supported by this browser/device.\n     *\n     * @return {boolean}\n     *         - True if HTML5 media is supported.\n     *         - False if HTML5 media is not supported.\n     */\n    Html5.isSupported = function () {\n        // IE with no Media Player is a LIAR! (#984)\n        try {\n            Html5.TEST_VID.volume = 0.5;\n        } catch (e) {\n            return false;\n        }\n        return !!(Html5.TEST_VID && Html5.TEST_VID.canPlayType);\n    };\n\n    /**\n     * Check if the tech can support the given type\n     *\n     * @param {string} type\n     *        The mimetype to check\n     * @return {string} 'probably', 'maybe', or '' (empty string)\n     */\n    Html5.canPlayType = function (type) {\n        return Html5.TEST_VID.canPlayType(type);\n    };\n\n    /**\n     * Check if the tech can support the given source\n     *\n     * @param {Object} srcObj\n     *        The source object\n     * @param {Object} options\n     *        The options passed to the tech\n     * @return {string} 'probably', 'maybe', or '' (empty string)\n     */\n    Html5.canPlaySource = function (srcObj, options) {\n        return Html5.canPlayType(srcObj.type);\n    };\n\n    /**\n     * Check if the volume can be changed in this browser/device.\n     * Volume cannot be changed in a lot of mobile devices.\n     * Specifically, it can't be changed from 1 on iOS.\n     *\n     * @return {boolean}\n     *         - True if volume can be controlled\n     *         - False otherwise\n     */\n    Html5.canControlVolume = function () {\n        // IE will error if Windows Media Player not installed #3315\n        try {\n            const volume = Html5.TEST_VID.volume;\n            Html5.TEST_VID.volume = volume / 2 + 0.1;\n            const canControl = volume !== Html5.TEST_VID.volume;\n\n            // With the introduction of iOS 15, there are cases where the volume is read as\n            // changed but reverts back to its original state at the start of the next tick.\n            // To determine whether volume can be controlled on iOS,\n            // a timeout is set and the volume is checked asynchronously.\n            // Since `features` doesn't currently work asynchronously, the value is manually set.\n            if (canControl && IS_IOS) {\n                window.setTimeout(() => {\n                    if (Html5 && Html5.prototype) {\n                        Html5.prototype.featuresVolumeControl = volume !== Html5.TEST_VID.volume;\n                    }\n                });\n\n                // default iOS to false, which will be updated in the timeout above.\n                return false;\n            }\n            return canControl;\n        } catch (e) {\n            return false;\n        }\n    };\n\n    /**\n     * Check if the volume can be muted in this browser/device.\n     * Some devices, e.g. iOS, don't allow changing volume\n     * but permits muting/unmuting.\n     *\n     * @return {boolean}\n     *      - True if volume can be muted\n     *      - False otherwise\n     */\n    Html5.canMuteVolume = function () {\n        try {\n            const muted = Html5.TEST_VID.muted;\n\n            // in some versions of iOS muted property doesn't always\n            // work, so we want to set both property and attribute\n            Html5.TEST_VID.muted = !muted;\n            if (Html5.TEST_VID.muted) {\n                setAttribute(Html5.TEST_VID, 'muted', 'muted');\n            } else {\n                removeAttribute(Html5.TEST_VID, 'muted', 'muted');\n            }\n            return muted !== Html5.TEST_VID.muted;\n        } catch (e) {\n            return false;\n        }\n    };\n\n    /**\n     * Check if the playback rate can be changed in this browser/device.\n     *\n     * @return {boolean}\n     *         - True if playback rate can be controlled\n     *         - False otherwise\n     */\n    Html5.canControlPlaybackRate = function () {\n        // Playback rate API is implemented in Android Chrome, but doesn't do anything\n        // https://github.com/videojs/video.js/issues/3180\n        if (IS_ANDROID && IS_CHROME && CHROME_VERSION < 58) {\n            return false;\n        }\n        // IE will error if Windows Media Player not installed #3315\n        try {\n            const playbackRate = Html5.TEST_VID.playbackRate;\n            Html5.TEST_VID.playbackRate = playbackRate / 2 + 0.1;\n            return playbackRate !== Html5.TEST_VID.playbackRate;\n        } catch (e) {\n            return false;\n        }\n    };\n\n    /**\n     * Check if we can override a video/audio elements attributes, with\n     * Object.defineProperty.\n     *\n     * @return {boolean}\n     *         - True if builtin attributes can be overridden\n     *         - False otherwise\n     */\n    Html5.canOverrideAttributes = function () {\n        // if we cannot overwrite the src/innerHTML property, there is no support\n        // iOS 7 safari for instance cannot do this.\n        try {\n            const noop = () => {};\n            Object.defineProperty(document.createElement('video'), 'src', {\n                get: noop,\n                set: noop\n            });\n            Object.defineProperty(document.createElement('audio'), 'src', {\n                get: noop,\n                set: noop\n            });\n            Object.defineProperty(document.createElement('video'), 'innerHTML', {\n                get: noop,\n                set: noop\n            });\n            Object.defineProperty(document.createElement('audio'), 'innerHTML', {\n                get: noop,\n                set: noop\n            });\n        } catch (e) {\n            return false;\n        }\n        return true;\n    };\n\n    /**\n     * Check to see if native `TextTrack`s are supported by this browser/device.\n     *\n     * @return {boolean}\n     *         - True if native `TextTrack`s are supported.\n     *         - False otherwise\n     */\n    Html5.supportsNativeTextTracks = function () {\n        return IS_ANY_SAFARI || IS_IOS && IS_CHROME;\n    };\n\n    /**\n     * Check to see if native `VideoTrack`s are supported by this browser/device\n     *\n     * @return {boolean}\n     *        - True if native `VideoTrack`s are supported.\n     *        - False otherwise\n     */\n    Html5.supportsNativeVideoTracks = function () {\n        return !!(Html5.TEST_VID && Html5.TEST_VID.videoTracks);\n    };\n\n    /**\n     * Check to see if native `AudioTrack`s are supported by this browser/device\n     *\n     * @return {boolean}\n     *        - True if native `AudioTrack`s are supported.\n     *        - False otherwise\n     */\n    Html5.supportsNativeAudioTracks = function () {\n        return !!(Html5.TEST_VID && Html5.TEST_VID.audioTracks);\n    };\n\n    /**\n     * An array of events available on the Html5 tech.\n     *\n     * @private\n     * @type {Array}\n     */\n    Html5.Events = ['loadstart', 'suspend', 'abort', 'error', 'emptied', 'stalled', 'loadedmetadata', 'loadeddata', 'canplay', 'canplaythrough', 'playing', 'waiting', 'seeking', 'seeked', 'ended', 'durationchange', 'timeupdate', 'progress', 'play', 'pause', 'ratechange', 'resize', 'volumechange'];\n\n    /**\n     * Boolean indicating whether the `Tech` supports volume control.\n     *\n     * @type {boolean}\n     * @default {@link Html5.canControlVolume}\n     */\n    /**\n     * Boolean indicating whether the `Tech` supports muting volume.\n     *\n     * @type {boolean}\n     * @default {@link Html5.canMuteVolume}\n     */\n\n    /**\n     * Boolean indicating whether the `Tech` supports changing the speed at which the media\n     * plays. Examples:\n     *   - Set player to play 2x (twice) as fast\n     *   - Set player to play 0.5x (half) as fast\n     *\n     * @type {boolean}\n     * @default {@link Html5.canControlPlaybackRate}\n     */\n\n    /**\n     * Boolean indicating whether the `Tech` supports the `sourceset` event.\n     *\n     * @type {boolean}\n     * @default\n     */\n    /**\n     * Boolean indicating whether the `HTML5` tech currently supports native `TextTrack`s.\n     *\n     * @type {boolean}\n     * @default {@link Html5.supportsNativeTextTracks}\n     */\n    /**\n     * Boolean indicating whether the `HTML5` tech currently supports native `VideoTrack`s.\n     *\n     * @type {boolean}\n     * @default {@link Html5.supportsNativeVideoTracks}\n     */\n    /**\n     * Boolean indicating whether the `HTML5` tech currently supports native `AudioTrack`s.\n     *\n     * @type {boolean}\n     * @default {@link Html5.supportsNativeAudioTracks}\n     */\n    [['featuresMuteControl', 'canMuteVolume'], ['featuresPlaybackRate', 'canControlPlaybackRate'], ['featuresSourceset', 'canOverrideAttributes'], ['featuresNativeTextTracks', 'supportsNativeTextTracks'], ['featuresNativeVideoTracks', 'supportsNativeVideoTracks'], ['featuresNativeAudioTracks', 'supportsNativeAudioTracks']].forEach(function ([key, fn]) {\n        defineLazyProperty(Html5.prototype, key, () => Html5[fn](), true);\n    });\n    Html5.prototype.featuresVolumeControl = Html5.canControlVolume();\n\n    /**\n     * Boolean indicating whether the `HTML5` tech currently supports the media element\n     * moving in the DOM. iOS breaks if you move the media element, so this is set this to\n     * false there. Everywhere else this should be true.\n     *\n     * @type {boolean}\n     * @default\n     */\n    Html5.prototype.movingMediaElementInDOM = !IS_IOS;\n\n    // TODO: Previous comment: No longer appears to be used. Can probably be removed.\n    //       Is this true?\n    /**\n     * Boolean indicating whether the `HTML5` tech currently supports automatic media resize\n     * when going into fullscreen.\n     *\n     * @type {boolean}\n     * @default\n     */\n    Html5.prototype.featuresFullscreenResize = true;\n\n    /**\n     * Boolean indicating whether the `HTML5` tech currently supports the progress event.\n     * If this is false, manual `progress` events will be triggered instead.\n     *\n     * @type {boolean}\n     * @default\n     */\n    Html5.prototype.featuresProgressEvents = true;\n\n    /**\n     * Boolean indicating whether the `HTML5` tech currently supports the timeupdate event.\n     * If this is false, manual `timeupdate` events will be triggered instead.\n     *\n     * @default\n     */\n    Html5.prototype.featuresTimeupdateEvents = true;\n\n    /**\n     * Whether the HTML5 el supports `requestVideoFrameCallback`\n     *\n     * @type {boolean}\n     */\n    Html5.prototype.featuresVideoFrameCallback = !!(Html5.TEST_VID && Html5.TEST_VID.requestVideoFrameCallback);\n    Html5.disposeMediaElement = function (el) {\n        if (!el) {\n            return;\n        }\n        if (el.parentNode) {\n            el.parentNode.removeChild(el);\n        }\n\n        // remove any child track or source nodes to prevent their loading\n        while (el.hasChildNodes()) {\n            el.removeChild(el.firstChild);\n        }\n\n        // remove any src reference. not setting `src=''` because that causes a warning\n        // in firefox\n        el.removeAttribute('src');\n\n        // force the media element to update its loading state by calling load()\n        // however IE on Windows 7N has a bug that throws an error so need a try/catch (#793)\n        if (typeof el.load === 'function') {\n            // wrapping in an iife so it's not deoptimized (#1060#discussion_r10324473)\n            (function () {\n                try {\n                    el.load();\n                } catch (e) {\n                    // not supported\n                }\n            })();\n        }\n    };\n    Html5.resetMediaElement = function (el) {\n        if (!el) {\n            return;\n        }\n        const sources = el.querySelectorAll('source');\n        let i = sources.length;\n        while (i--) {\n            el.removeChild(sources[i]);\n        }\n\n        // remove any src reference.\n        // not setting `src=''` because that throws an error\n        el.removeAttribute('src');\n        if (typeof el.load === 'function') {\n            // wrapping in an iife so it's not deoptimized (#1060#discussion_r10324473)\n            (function () {\n                try {\n                    el.load();\n                } catch (e) {\n                    // satisfy linter\n                }\n            })();\n        }\n    };\n\n    /* Native HTML5 element property wrapping ----------------------------------- */\n    // Wrap native boolean attributes with getters that check both property and attribute\n    // The list is as followed:\n    // muted, defaultMuted, autoplay, controls, loop, playsinline\n    [\n        /**\n         * Get the value of `muted` from the media element. `muted` indicates\n         * that the volume for the media should be set to silent. This does not actually change\n         * the `volume` attribute.\n         *\n         * @method Html5#muted\n         * @return {boolean}\n         *         - True if the value of `volume` should be ignored and the audio set to silent.\n         *         - False if the value of `volume` should be used.\n         *\n         * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-muted}\n         */\n        'muted',\n        /**\n         * Get the value of `defaultMuted` from the media element. `defaultMuted` indicates\n         * whether the media should start muted or not. Only changes the default state of the\n         * media. `muted` and `defaultMuted` can have different values. {@link Html5#muted} indicates the\n         * current state.\n         *\n         * @method Html5#defaultMuted\n         * @return {boolean}\n         *         - The value of `defaultMuted` from the media element.\n         *         - True indicates that the media should start muted.\n         *         - False indicates that the media should not start muted\n         *\n         * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-defaultmuted}\n         */\n        'defaultMuted',\n        /**\n         * Get the value of `autoplay` from the media element. `autoplay` indicates\n         * that the media should start to play as soon as the page is ready.\n         *\n         * @method Html5#autoplay\n         * @return {boolean}\n         *         - The value of `autoplay` from the media element.\n         *         - True indicates that the media should start as soon as the page loads.\n         *         - False indicates that the media should not start as soon as the page loads.\n         *\n         * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-media-autoplay}\n         */\n        'autoplay',\n        /**\n         * Get the value of `controls` from the media element. `controls` indicates\n         * whether the native media controls should be shown or hidden.\n         *\n         * @method Html5#controls\n         * @return {boolean}\n         *         - The value of `controls` from the media element.\n         *         - True indicates that native controls should be showing.\n         *         - False indicates that native controls should be hidden.\n         *\n         * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-media-controls}\n         */\n        'controls',\n        /**\n         * Get the value of `loop` from the media element. `loop` indicates\n         * that the media should return to the start of the media and continue playing once\n         * it reaches the end.\n         *\n         * @method Html5#loop\n         * @return {boolean}\n         *         - The value of `loop` from the media element.\n         *         - True indicates that playback should seek back to start once\n         *           the end of a media is reached.\n         *         - False indicates that playback should not loop back to the start when the\n         *           end of the media is reached.\n         *\n         * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-media-loop}\n         */\n        'loop',\n        /**\n         * Get the value of `playsinline` from the media element. `playsinline` indicates\n         * to the browser that non-fullscreen playback is preferred when fullscreen\n         * playback is the native default, such as in iOS Safari.\n         *\n         * @method Html5#playsinline\n         * @return {boolean}\n         *         - The value of `playsinline` from the media element.\n         *         - True indicates that the media should play inline.\n         *         - False indicates that the media should not play inline.\n         *\n         * @see [Spec]{@link https://html.spec.whatwg.org/#attr-video-playsinline}\n         */\n        'playsinline'].forEach(function (prop) {\n        Html5.prototype[prop] = function () {\n            return this.el_[prop] || this.el_.hasAttribute(prop);\n        };\n    });\n\n    // Wrap native boolean attributes with setters that set both property and attribute\n    // The list is as followed:\n    // setMuted, setDefaultMuted, setAutoplay, setLoop, setPlaysinline\n    // setControls is special-cased above\n    [\n        /**\n         * Set the value of `muted` on the media element. `muted` indicates that the current\n         * audio level should be silent.\n         *\n         * @method Html5#setMuted\n         * @param {boolean} muted\n         *        - True if the audio should be set to silent\n         *        - False otherwise\n         *\n         * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-muted}\n         */\n        'muted',\n        /**\n         * Set the value of `defaultMuted` on the media element. `defaultMuted` indicates that the current\n         * audio level should be silent, but will only effect the muted level on initial playback..\n         *\n         * @method Html5.prototype.setDefaultMuted\n         * @param {boolean} defaultMuted\n         *        - True if the audio should be set to silent\n         *        - False otherwise\n         *\n         * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-defaultmuted}\n         */\n        'defaultMuted',\n        /**\n         * Set the value of `autoplay` on the media element. `autoplay` indicates\n         * that the media should start to play as soon as the page is ready.\n         *\n         * @method Html5#setAutoplay\n         * @param {boolean} autoplay\n         *         - True indicates that the media should start as soon as the page loads.\n         *         - False indicates that the media should not start as soon as the page loads.\n         *\n         * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-media-autoplay}\n         */\n        'autoplay',\n        /**\n         * Set the value of `loop` on the media element. `loop` indicates\n         * that the media should return to the start of the media and continue playing once\n         * it reaches the end.\n         *\n         * @method Html5#setLoop\n         * @param {boolean} loop\n         *         - True indicates that playback should seek back to start once\n         *           the end of a media is reached.\n         *         - False indicates that playback should not loop back to the start when the\n         *           end of the media is reached.\n         *\n         * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-media-loop}\n         */\n        'loop',\n        /**\n         * Set the value of `playsinline` from the media element. `playsinline` indicates\n         * to the browser that non-fullscreen playback is preferred when fullscreen\n         * playback is the native default, such as in iOS Safari.\n         *\n         * @method Html5#setPlaysinline\n         * @param {boolean} playsinline\n         *         - True indicates that the media should play inline.\n         *         - False indicates that the media should not play inline.\n         *\n         * @see [Spec]{@link https://html.spec.whatwg.org/#attr-video-playsinline}\n         */\n        'playsinline'].forEach(function (prop) {\n        Html5.prototype['set' + toTitleCase$1(prop)] = function (v) {\n            this.el_[prop] = v;\n            if (v) {\n                this.el_.setAttribute(prop, prop);\n            } else {\n                this.el_.removeAttribute(prop);\n            }\n        };\n    });\n\n    // Wrap native properties with a getter\n    // The list is as followed\n    // paused, currentTime, buffered, volume, poster, preload, error, seeking\n    // seekable, ended, playbackRate, defaultPlaybackRate, disablePictureInPicture\n    // played, networkState, readyState, videoWidth, videoHeight, crossOrigin\n    [\n        /**\n         * Get the value of `paused` from the media element. `paused` indicates whether the media element\n         * is currently paused or not.\n         *\n         * @method Html5#paused\n         * @return {boolean}\n         *         The value of `paused` from the media element.\n         *\n         * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-paused}\n         */\n        'paused',\n        /**\n         * Get the value of `currentTime` from the media element. `currentTime` indicates\n         * the current second that the media is at in playback.\n         *\n         * @method Html5#currentTime\n         * @return {number}\n         *         The value of `currentTime` from the media element.\n         *\n         * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-currenttime}\n         */\n        'currentTime',\n        /**\n         * Get the value of `buffered` from the media element. `buffered` is a `TimeRange`\n         * object that represents the parts of the media that are already downloaded and\n         * available for playback.\n         *\n         * @method Html5#buffered\n         * @return {TimeRange}\n         *         The value of `buffered` from the media element.\n         *\n         * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-buffered}\n         */\n        'buffered',\n        /**\n         * Get the value of `volume` from the media element. `volume` indicates\n         * the current playback volume of audio for a media. `volume` will be a value from 0\n         * (silent) to 1 (loudest and default).\n         *\n         * @method Html5#volume\n         * @return {number}\n         *         The value of `volume` from the media element. Value will be between 0-1.\n         *\n         * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-a-volume}\n         */\n        'volume',\n        /**\n         * Get the value of `poster` from the media element. `poster` indicates\n         * that the url of an image file that can/will be shown when no media data is available.\n         *\n         * @method Html5#poster\n         * @return {string}\n         *         The value of `poster` from the media element. Value will be a url to an\n         *         image.\n         *\n         * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-video-poster}\n         */\n        'poster',\n        /**\n         * Get the value of `preload` from the media element. `preload` indicates\n         * what should download before the media is interacted with. It can have the following\n         * values:\n         * - none: nothing should be downloaded\n         * - metadata: poster and the first few frames of the media may be downloaded to get\n         *   media dimensions and other metadata\n         * - auto: allow the media and metadata for the media to be downloaded before\n         *    interaction\n         *\n         * @method Html5#preload\n         * @return {string}\n         *         The value of `preload` from the media element. Will be 'none', 'metadata',\n         *         or 'auto'.\n         *\n         * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-media-preload}\n         */\n        'preload',\n        /**\n         * Get the value of the `error` from the media element. `error` indicates any\n         * MediaError that may have occurred during playback. If error returns null there is no\n         * current error.\n         *\n         * @method Html5#error\n         * @return {MediaError|null}\n         *         The value of `error` from the media element. Will be `MediaError` if there\n         *         is a current error and null otherwise.\n         *\n         * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-error}\n         */\n        'error',\n        /**\n         * Get the value of `seeking` from the media element. `seeking` indicates whether the\n         * media is currently seeking to a new position or not.\n         *\n         * @method Html5#seeking\n         * @return {boolean}\n         *         - The value of `seeking` from the media element.\n         *         - True indicates that the media is currently seeking to a new position.\n         *         - False indicates that the media is not seeking to a new position at this time.\n         *\n         * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-seeking}\n         */\n        'seeking',\n        /**\n         * Get the value of `seekable` from the media element. `seekable` returns a\n         * `TimeRange` object indicating ranges of time that can currently be `seeked` to.\n         *\n         * @method Html5#seekable\n         * @return {TimeRange}\n         *         The value of `seekable` from the media element. A `TimeRange` object\n         *         indicating the current ranges of time that can be seeked to.\n         *\n         * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-seekable}\n         */\n        'seekable',\n        /**\n         * Get the value of `ended` from the media element. `ended` indicates whether\n         * the media has reached the end or not.\n         *\n         * @method Html5#ended\n         * @return {boolean}\n         *         - The value of `ended` from the media element.\n         *         - True indicates that the media has ended.\n         *         - False indicates that the media has not ended.\n         *\n         * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-ended}\n         */\n        'ended',\n        /**\n         * Get the value of `playbackRate` from the media element. `playbackRate` indicates\n         * the rate at which the media is currently playing back. Examples:\n         *   - if playbackRate is set to 2, media will play twice as fast.\n         *   - if playbackRate is set to 0.5, media will play half as fast.\n         *\n         * @method Html5#playbackRate\n         * @return {number}\n         *         The value of `playbackRate` from the media element. A number indicating\n         *         the current playback speed of the media, where 1 is normal speed.\n         *\n         * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-playbackrate}\n         */\n        'playbackRate',\n        /**\n         * Get the value of `defaultPlaybackRate` from the media element. `defaultPlaybackRate` indicates\n         * the rate at which the media is currently playing back. This value will not indicate the current\n         * `playbackRate` after playback has started, use {@link Html5#playbackRate} for that.\n         *\n         * Examples:\n         *   - if defaultPlaybackRate is set to 2, media will play twice as fast.\n         *   - if defaultPlaybackRate is set to 0.5, media will play half as fast.\n         *\n         * @method Html5.prototype.defaultPlaybackRate\n         * @return {number}\n         *         The value of `defaultPlaybackRate` from the media element. A number indicating\n         *         the current playback speed of the media, where 1 is normal speed.\n         *\n         * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-playbackrate}\n         */\n        'defaultPlaybackRate',\n        /**\n         * Get the value of 'disablePictureInPicture' from the video element.\n         *\n         * @method Html5#disablePictureInPicture\n         * @return {boolean} value\n         *         - The value of `disablePictureInPicture` from the video element.\n         *         - True indicates that the video can't be played in Picture-In-Picture mode\n         *         - False indicates that the video can be played in Picture-In-Picture mode\n         *\n         * @see [Spec]{@link https://w3c.github.io/picture-in-picture/#disable-pip}\n         */\n        'disablePictureInPicture',\n        /**\n         * Get the value of `played` from the media element. `played` returns a `TimeRange`\n         * object representing points in the media timeline that have been played.\n         *\n         * @method Html5#played\n         * @return {TimeRange}\n         *         The value of `played` from the media element. A `TimeRange` object indicating\n         *         the ranges of time that have been played.\n         *\n         * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-played}\n         */\n        'played',\n        /**\n         * Get the value of `networkState` from the media element. `networkState` indicates\n         * the current network state. It returns an enumeration from the following list:\n         * - 0: NETWORK_EMPTY\n         * - 1: NETWORK_IDLE\n         * - 2: NETWORK_LOADING\n         * - 3: NETWORK_NO_SOURCE\n         *\n         * @method Html5#networkState\n         * @return {number}\n         *         The value of `networkState` from the media element. This will be a number\n         *         from the list in the description.\n         *\n         * @see [Spec] {@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-networkstate}\n         */\n        'networkState',\n        /**\n         * Get the value of `readyState` from the media element. `readyState` indicates\n         * the current state of the media element. It returns an enumeration from the\n         * following list:\n         * - 0: HAVE_NOTHING\n         * - 1: HAVE_METADATA\n         * - 2: HAVE_CURRENT_DATA\n         * - 3: HAVE_FUTURE_DATA\n         * - 4: HAVE_ENOUGH_DATA\n         *\n         * @method Html5#readyState\n         * @return {number}\n         *         The value of `readyState` from the media element. This will be a number\n         *         from the list in the description.\n         *\n         * @see [Spec] {@link https://www.w3.org/TR/html5/embedded-content-0.html#ready-states}\n         */\n        'readyState',\n        /**\n         * Get the value of `videoWidth` from the video element. `videoWidth` indicates\n         * the current width of the video in css pixels.\n         *\n         * @method Html5#videoWidth\n         * @return {number}\n         *         The value of `videoWidth` from the video element. This will be a number\n         *         in css pixels.\n         *\n         * @see [Spec] {@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-video-videowidth}\n         */\n        'videoWidth',\n        /**\n         * Get the value of `videoHeight` from the video element. `videoHeight` indicates\n         * the current height of the video in css pixels.\n         *\n         * @method Html5#videoHeight\n         * @return {number}\n         *         The value of `videoHeight` from the video element. This will be a number\n         *         in css pixels.\n         *\n         * @see [Spec] {@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-video-videowidth}\n         */\n        'videoHeight',\n        /**\n         * Get the value of `crossOrigin` from the media element. `crossOrigin` indicates\n         * to the browser that should sent the cookies along with the requests for the\n         * different assets/playlists\n         *\n         * @method Html5#crossOrigin\n         * @return {string}\n         *         - anonymous indicates that the media should not sent cookies.\n         *         - use-credentials indicates that the media should sent cookies along the requests.\n         *\n         * @see [Spec]{@link https://html.spec.whatwg.org/#attr-media-crossorigin}\n         */\n        'crossOrigin'].forEach(function (prop) {\n        Html5.prototype[prop] = function () {\n            return this.el_[prop];\n        };\n    });\n\n    // Wrap native properties with a setter in this format:\n    // set + toTitleCase(name)\n    // The list is as follows:\n    // setVolume, setSrc, setPoster, setPreload, setPlaybackRate, setDefaultPlaybackRate,\n    // setDisablePictureInPicture, setCrossOrigin\n    [\n        /**\n         * Set the value of `volume` on the media element. `volume` indicates the current\n         * audio level as a percentage in decimal form. This means that 1 is 100%, 0.5 is 50%, and\n         * so on.\n         *\n         * @method Html5#setVolume\n         * @param {number} percentAsDecimal\n         *        The volume percent as a decimal. Valid range is from 0-1.\n         *\n         * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-a-volume}\n         */\n        'volume',\n        /**\n         * Set the value of `src` on the media element. `src` indicates the current\n         * {@link Tech~SourceObject} for the media.\n         *\n         * @method Html5#setSrc\n         * @param {Tech~SourceObject} src\n         *        The source object to set as the current source.\n         *\n         * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-src}\n         */\n        'src',\n        /**\n         * Set the value of `poster` on the media element. `poster` is the url to\n         * an image file that can/will be shown when no media data is available.\n         *\n         * @method Html5#setPoster\n         * @param {string} poster\n         *        The url to an image that should be used as the `poster` for the media\n         *        element.\n         *\n         * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-media-poster}\n         */\n        'poster',\n        /**\n         * Set the value of `preload` on the media element. `preload` indicates\n         * what should download before the media is interacted with. It can have the following\n         * values:\n         * - none: nothing should be downloaded\n         * - metadata: poster and the first few frames of the media may be downloaded to get\n         *   media dimensions and other metadata\n         * - auto: allow the media and metadata for the media to be downloaded before\n         *    interaction\n         *\n         * @method Html5#setPreload\n         * @param {string} preload\n         *         The value of `preload` to set on the media element. Must be 'none', 'metadata',\n         *         or 'auto'.\n         *\n         * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-media-preload}\n         */\n        'preload',\n        /**\n         * Set the value of `playbackRate` on the media element. `playbackRate` indicates\n         * the rate at which the media should play back. Examples:\n         *   - if playbackRate is set to 2, media will play twice as fast.\n         *   - if playbackRate is set to 0.5, media will play half as fast.\n         *\n         * @method Html5#setPlaybackRate\n         * @return {number}\n         *         The value of `playbackRate` from the media element. A number indicating\n         *         the current playback speed of the media, where 1 is normal speed.\n         *\n         * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-playbackrate}\n         */\n        'playbackRate',\n        /**\n         * Set the value of `defaultPlaybackRate` on the media element. `defaultPlaybackRate` indicates\n         * the rate at which the media should play back upon initial startup. Changing this value\n         * after a video has started will do nothing. Instead you should used {@link Html5#setPlaybackRate}.\n         *\n         * Example Values:\n         *   - if playbackRate is set to 2, media will play twice as fast.\n         *   - if playbackRate is set to 0.5, media will play half as fast.\n         *\n         * @method Html5.prototype.setDefaultPlaybackRate\n         * @return {number}\n         *         The value of `defaultPlaybackRate` from the media element. A number indicating\n         *         the current playback speed of the media, where 1 is normal speed.\n         *\n         * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-defaultplaybackrate}\n         */\n        'defaultPlaybackRate',\n        /**\n         * Prevents the browser from suggesting a Picture-in-Picture context menu\n         * or to request Picture-in-Picture automatically in some cases.\n         *\n         * @method Html5#setDisablePictureInPicture\n         * @param {boolean} value\n         *         The true value will disable Picture-in-Picture mode.\n         *\n         * @see [Spec]{@link https://w3c.github.io/picture-in-picture/#disable-pip}\n         */\n        'disablePictureInPicture',\n        /**\n         * Set the value of `crossOrigin` from the media element. `crossOrigin` indicates\n         * to the browser that should sent the cookies along with the requests for the\n         * different assets/playlists\n         *\n         * @method Html5#setCrossOrigin\n         * @param {string} crossOrigin\n         *         - anonymous indicates that the media should not sent cookies.\n         *         - use-credentials indicates that the media should sent cookies along the requests.\n         *\n         * @see [Spec]{@link https://html.spec.whatwg.org/#attr-media-crossorigin}\n         */\n        'crossOrigin'].forEach(function (prop) {\n        Html5.prototype['set' + toTitleCase$1(prop)] = function (v) {\n            this.el_[prop] = v;\n        };\n    });\n\n    // wrap native functions with a function\n    // The list is as follows:\n    // pause, load, play\n    [\n        /**\n         * A wrapper around the media elements `pause` function. This will call the `HTML5`\n         * media elements `pause` function.\n         *\n         * @method Html5#pause\n         * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-pause}\n         */\n        'pause',\n        /**\n         * A wrapper around the media elements `load` function. This will call the `HTML5`s\n         * media element `load` function.\n         *\n         * @method Html5#load\n         * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-load}\n         */\n        'load',\n        /**\n         * A wrapper around the media elements `play` function. This will call the `HTML5`s\n         * media element `play` function.\n         *\n         * @method Html5#play\n         * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-play}\n         */\n        'play'].forEach(function (prop) {\n        Html5.prototype[prop] = function () {\n            return this.el_[prop]();\n        };\n    });\n    Tech.withSourceHandlers(Html5);\n\n    /**\n     * Native source handler for Html5, simply passes the source to the media element.\n     *\n     * @property {Tech~SourceObject} source\n     *        The source object\n     *\n     * @property {Html5} tech\n     *        The instance of the HTML5 tech.\n     */\n    Html5.nativeSourceHandler = {};\n\n    /**\n     * Check if the media element can play the given mime type.\n     *\n     * @param {string} type\n     *        The mimetype to check\n     *\n     * @return {string}\n     *         'probably', 'maybe', or '' (empty string)\n     */\n    Html5.nativeSourceHandler.canPlayType = function (type) {\n        // IE without MediaPlayer throws an error (#519)\n        try {\n            return Html5.TEST_VID.canPlayType(type);\n        } catch (e) {\n            return '';\n        }\n    };\n\n    /**\n     * Check if the media element can handle a source natively.\n     *\n     * @param {Tech~SourceObject} source\n     *         The source object\n     *\n     * @param {Object} [options]\n     *         Options to be passed to the tech.\n     *\n     * @return {string}\n     *         'probably', 'maybe', or '' (empty string).\n     */\n    Html5.nativeSourceHandler.canHandleSource = function (source, options) {\n        // If a type was provided we should rely on that\n        if (source.type) {\n            return Html5.nativeSourceHandler.canPlayType(source.type);\n\n            // If no type, fall back to checking 'video/[EXTENSION]'\n        } else if (source.src) {\n            const ext = getFileExtension(source.src);\n            return Html5.nativeSourceHandler.canPlayType(`video/${ext}`);\n        }\n        return '';\n    };\n\n    /**\n     * Pass the source to the native media element.\n     *\n     * @param {Tech~SourceObject} source\n     *        The source object\n     *\n     * @param {Html5} tech\n     *        The instance of the Html5 tech\n     *\n     * @param {Object} [options]\n     *        The options to pass to the source\n     */\n    Html5.nativeSourceHandler.handleSource = function (source, tech, options) {\n        tech.setSrc(source.src);\n    };\n\n    /**\n     * A noop for the native dispose function, as cleanup is not needed.\n     */\n    Html5.nativeSourceHandler.dispose = function () {};\n\n    // Register the native source handler\n    Html5.registerSourceHandler(Html5.nativeSourceHandler);\n    Tech.registerTech('Html5', Html5);\n\n    /**\n     * @file player.js\n     */\n\n        // The following tech events are simply re-triggered\n        // on the player when they happen\n    const TECH_EVENTS_RETRIGGER = [\n            /**\n             * Fired while the user agent is downloading media data.\n             *\n             * @event Player#progress\n             * @type {Event}\n             */\n            /**\n             * Retrigger the `progress` event that was triggered by the {@link Tech}.\n             *\n             * @private\n             * @method Player#handleTechProgress_\n             * @fires Player#progress\n             * @listens Tech#progress\n             */\n            'progress',\n            /**\n             * Fires when the loading of an audio/video is aborted.\n             *\n             * @event Player#abort\n             * @type {Event}\n             */\n            /**\n             * Retrigger the `abort` event that was triggered by the {@link Tech}.\n             *\n             * @private\n             * @method Player#handleTechAbort_\n             * @fires Player#abort\n             * @listens Tech#abort\n             */\n            'abort',\n            /**\n             * Fires when the browser is intentionally not getting media data.\n             *\n             * @event Player#suspend\n             * @type {Event}\n             */\n            /**\n             * Retrigger the `suspend` event that was triggered by the {@link Tech}.\n             *\n             * @private\n             * @method Player#handleTechSuspend_\n             * @fires Player#suspend\n             * @listens Tech#suspend\n             */\n            'suspend',\n            /**\n             * Fires when the current playlist is empty.\n             *\n             * @event Player#emptied\n             * @type {Event}\n             */\n            /**\n             * Retrigger the `emptied` event that was triggered by the {@link Tech}.\n             *\n             * @private\n             * @method Player#handleTechEmptied_\n             * @fires Player#emptied\n             * @listens Tech#emptied\n             */\n            'emptied',\n            /**\n             * Fires when the browser is trying to get media data, but data is not available.\n             *\n             * @event Player#stalled\n             * @type {Event}\n             */\n            /**\n             * Retrigger the `stalled` event that was triggered by the {@link Tech}.\n             *\n             * @private\n             * @method Player#handleTechStalled_\n             * @fires Player#stalled\n             * @listens Tech#stalled\n             */\n            'stalled',\n            /**\n             * Fires when the browser has loaded meta data for the audio/video.\n             *\n             * @event Player#loadedmetadata\n             * @type {Event}\n             */\n            /**\n             * Retrigger the `loadedmetadata` event that was triggered by the {@link Tech}.\n             *\n             * @private\n             * @method Player#handleTechLoadedmetadata_\n             * @fires Player#loadedmetadata\n             * @listens Tech#loadedmetadata\n             */\n            'loadedmetadata',\n            /**\n             * Fires when the browser has loaded the current frame of the audio/video.\n             *\n             * @event Player#loadeddata\n             * @type {event}\n             */\n            /**\n             * Retrigger the `loadeddata` event that was triggered by the {@link Tech}.\n             *\n             * @private\n             * @method Player#handleTechLoaddeddata_\n             * @fires Player#loadeddata\n             * @listens Tech#loadeddata\n             */\n            'loadeddata',\n            /**\n             * Fires when the current playback position has changed.\n             *\n             * @event Player#timeupdate\n             * @type {event}\n             */\n            /**\n             * Retrigger the `timeupdate` event that was triggered by the {@link Tech}.\n             *\n             * @private\n             * @method Player#handleTechTimeUpdate_\n             * @fires Player#timeupdate\n             * @listens Tech#timeupdate\n             */\n            'timeupdate',\n            /**\n             * Fires when the video's intrinsic dimensions change\n             *\n             * @event Player#resize\n             * @type {event}\n             */\n            /**\n             * Retrigger the `resize` event that was triggered by the {@link Tech}.\n             *\n             * @private\n             * @method Player#handleTechResize_\n             * @fires Player#resize\n             * @listens Tech#resize\n             */\n            'resize',\n            /**\n             * Fires when the volume has been changed\n             *\n             * @event Player#volumechange\n             * @type {event}\n             */\n            /**\n             * Retrigger the `volumechange` event that was triggered by the {@link Tech}.\n             *\n             * @private\n             * @method Player#handleTechVolumechange_\n             * @fires Player#volumechange\n             * @listens Tech#volumechange\n             */\n            'volumechange',\n            /**\n             * Fires when the text track has been changed\n             *\n             * @event Player#texttrackchange\n             * @type {event}\n             */\n            /**\n             * Retrigger the `texttrackchange` event that was triggered by the {@link Tech}.\n             *\n             * @private\n             * @method Player#handleTechTexttrackchange_\n             * @fires Player#texttrackchange\n             * @listens Tech#texttrackchange\n             */\n            'texttrackchange'];\n\n    // events to queue when playback rate is zero\n    // this is a hash for the sole purpose of mapping non-camel-cased event names\n    // to camel-cased function names\n    const TECH_EVENTS_QUEUE = {\n        canplay: 'CanPlay',\n        canplaythrough: 'CanPlayThrough',\n        playing: 'Playing',\n        seeked: 'Seeked'\n    };\n    const BREAKPOINT_ORDER = ['tiny', 'xsmall', 'small', 'medium', 'large', 'xlarge', 'huge'];\n    const BREAKPOINT_CLASSES = {};\n\n    // grep: vjs-layout-tiny\n    // grep: vjs-layout-x-small\n    // grep: vjs-layout-small\n    // grep: vjs-layout-medium\n    // grep: vjs-layout-large\n    // grep: vjs-layout-x-large\n    // grep: vjs-layout-huge\n    BREAKPOINT_ORDER.forEach(k => {\n        const v = k.charAt(0) === 'x' ? `x-${k.substring(1)}` : k;\n        BREAKPOINT_CLASSES[k] = `vjs-layout-${v}`;\n    });\n    const DEFAULT_BREAKPOINTS = {\n        tiny: 210,\n        xsmall: 320,\n        small: 425,\n        medium: 768,\n        large: 1440,\n        xlarge: 2560,\n        huge: Infinity\n    };\n\n    /**\n     * An instance of the `Player` class is created when any of the Video.js setup methods\n     * are used to initialize a video.\n     *\n     * After an instance has been created it can be accessed globally in three ways:\n     * 1. By calling `videojs.getPlayer('example_video_1');`\n     * 2. By calling `videojs('example_video_1');` (not recomended)\n     * 2. By using it directly via  `videojs.players.example_video_1;`\n     *\n     * @extends Component\n     * @global\n     */\n    class Player extends Component$1 {\n        /**\n         * Create an instance of this class.\n         *\n         * @param {Element} tag\n         *        The original video DOM element used for configuring options.\n         *\n         * @param {Object} [options]\n         *        Object of option names and values.\n         *\n         * @param {Function} [ready]\n         *        Ready callback function.\n         */\n        constructor(tag, options, ready) {\n            // Make sure tag ID exists\n            tag.id = tag.id || options.id || `vjs_video_${newGUID()}`;\n\n            // Set Options\n            // The options argument overrides options set in the video tag\n            // which overrides globally set options.\n            // This latter part coincides with the load order\n            // (tag must exist before Player)\n            options = Object.assign(Player.getTagSettings(tag), options);\n\n            // Delay the initialization of children because we need to set up\n            // player properties first, and can't use `this` before `super()`\n            options.initChildren = false;\n\n            // Same with creating the element\n            options.createEl = false;\n\n            // don't auto mixin the evented mixin\n            options.evented = false;\n\n            // we don't want the player to report touch activity on itself\n            // see enableTouchActivity in Component\n            options.reportTouchActivity = false;\n\n            // If language is not set, get the closest lang attribute\n            if (!options.language) {\n                const closest = tag.closest('[lang]');\n                if (closest) {\n                    options.language = closest.getAttribute('lang');\n                }\n            }\n\n            // Run base component initializing with new options\n            super(null, options, ready);\n\n            // Create bound methods for document listeners.\n            this.boundDocumentFullscreenChange_ = e => this.documentFullscreenChange_(e);\n            this.boundFullWindowOnEscKey_ = e => this.fullWindowOnEscKey(e);\n            this.boundUpdateStyleEl_ = e => this.updateStyleEl_(e);\n            this.boundApplyInitTime_ = e => this.applyInitTime_(e);\n            this.boundUpdateCurrentBreakpoint_ = e => this.updateCurrentBreakpoint_(e);\n            this.boundHandleTechClick_ = e => this.handleTechClick_(e);\n            this.boundHandleTechDoubleClick_ = e => this.handleTechDoubleClick_(e);\n            this.boundHandleTechTouchStart_ = e => this.handleTechTouchStart_(e);\n            this.boundHandleTechTouchMove_ = e => this.handleTechTouchMove_(e);\n            this.boundHandleTechTouchEnd_ = e => this.handleTechTouchEnd_(e);\n            this.boundHandleTechTap_ = e => this.handleTechTap_(e);\n\n            // default isFullscreen_ to false\n            this.isFullscreen_ = false;\n\n            // create logger\n            this.log = createLogger(this.id_);\n\n            // Hold our own reference to fullscreen api so it can be mocked in tests\n            this.fsApi_ = FullscreenApi;\n\n            // Tracks when a tech changes the poster\n            this.isPosterFromTech_ = false;\n\n            // Holds callback info that gets queued when playback rate is zero\n            // and a seek is happening\n            this.queuedCallbacks_ = [];\n\n            // Turn off API access because we're loading a new tech that might load asynchronously\n            this.isReady_ = false;\n\n            // Init state hasStarted_\n            this.hasStarted_ = false;\n\n            // Init state userActive_\n            this.userActive_ = false;\n\n            // Init debugEnabled_\n            this.debugEnabled_ = false;\n\n            // Init state audioOnlyMode_\n            this.audioOnlyMode_ = false;\n\n            // Init state audioPosterMode_\n            this.audioPosterMode_ = false;\n\n            // Init state audioOnlyCache_\n            this.audioOnlyCache_ = {\n                playerHeight: null,\n                hiddenChildren: []\n            };\n\n            // if the global option object was accidentally blown away by\n            // someone, bail early with an informative error\n            if (!this.options_ || !this.options_.techOrder || !this.options_.techOrder.length) {\n                throw new Error('No techOrder specified. Did you overwrite ' + 'videojs.options instead of just changing the ' + 'properties you want to override?');\n            }\n\n            // Store the original tag used to set options\n            this.tag = tag;\n\n            // Store the tag attributes used to restore html5 element\n            this.tagAttributes = tag && getAttributes(tag);\n\n            // Update current language\n            this.language(this.options_.language);\n\n            // Update Supported Languages\n            if (options.languages) {\n                // Normalise player option languages to lowercase\n                const languagesToLower = {};\n                Object.getOwnPropertyNames(options.languages).forEach(function (name) {\n                    languagesToLower[name.toLowerCase()] = options.languages[name];\n                });\n                this.languages_ = languagesToLower;\n            } else {\n                this.languages_ = Player.prototype.options_.languages;\n            }\n            this.resetCache_();\n\n            // Set poster\n            this.poster_ = options.poster || '';\n\n            // Set controls\n            this.controls_ = !!options.controls;\n\n            // Original tag settings stored in options\n            // now remove immediately so native controls don't flash.\n            // May be turned back on by HTML5 tech if nativeControlsForTouch is true\n            tag.controls = false;\n            tag.removeAttribute('controls');\n            this.changingSrc_ = false;\n            this.playCallbacks_ = [];\n            this.playTerminatedQueue_ = [];\n\n            // the attribute overrides the option\n            if (tag.hasAttribute('autoplay')) {\n                this.autoplay(true);\n            } else {\n                // otherwise use the setter to validate and\n                // set the correct value.\n                this.autoplay(this.options_.autoplay);\n            }\n\n            // check plugins\n            if (options.plugins) {\n                Object.keys(options.plugins).forEach(name => {\n                    if (typeof this[name] !== 'function') {\n                        throw new Error(`plugin \"${name}\" does not exist`);\n                    }\n                });\n            }\n\n            /*\n       * Store the internal state of scrubbing\n       *\n       * @private\n       * @return {Boolean} True if the user is scrubbing\n       */\n            this.scrubbing_ = false;\n            this.el_ = this.createEl();\n\n            // Make this an evented object and use `el_` as its event bus.\n            evented(this, {\n                eventBusKey: 'el_'\n            });\n\n            // listen to document and player fullscreenchange handlers so we receive those events\n            // before a user can receive them so we can update isFullscreen appropriately.\n            // make sure that we listen to fullscreenchange events before everything else to make sure that\n            // our isFullscreen method is updated properly for internal components as well as external.\n            if (this.fsApi_.requestFullscreen) {\n                on(document, this.fsApi_.fullscreenchange, this.boundDocumentFullscreenChange_);\n                this.on(this.fsApi_.fullscreenchange, this.boundDocumentFullscreenChange_);\n            }\n            if (this.fluid_) {\n                this.on(['playerreset', 'resize'], this.boundUpdateStyleEl_);\n            }\n            // We also want to pass the original player options to each component and plugin\n            // as well so they don't need to reach back into the player for options later.\n            // We also need to do another copy of this.options_ so we don't end up with\n            // an infinite loop.\n            const playerOptionsCopy = merge$2(this.options_);\n\n            // Load plugins\n            if (options.plugins) {\n                Object.keys(options.plugins).forEach(name => {\n                    this[name](options.plugins[name]);\n                });\n            }\n\n            // Enable debug mode to fire debugon event for all plugins.\n            if (options.debug) {\n                this.debug(true);\n            }\n            this.options_.playerOptions = playerOptionsCopy;\n            this.middleware_ = [];\n            this.playbackRates(options.playbackRates);\n            this.initChildren();\n\n            // Set isAudio based on whether or not an audio tag was used\n            this.isAudio(tag.nodeName.toLowerCase() === 'audio');\n\n            // Update controls className. Can't do this when the controls are initially\n            // set because the element doesn't exist yet.\n            if (this.controls()) {\n                this.addClass('vjs-controls-enabled');\n            } else {\n                this.addClass('vjs-controls-disabled');\n            }\n\n            // Set ARIA label and region role depending on player type\n            this.el_.setAttribute('role', 'region');\n            if (this.isAudio()) {\n                this.el_.setAttribute('aria-label', this.localize('Audio Player'));\n            } else {\n                this.el_.setAttribute('aria-label', this.localize('Video Player'));\n            }\n            if (this.isAudio()) {\n                this.addClass('vjs-audio');\n            }\n\n            // TODO: Make this smarter. Toggle user state between touching/mousing\n            // using events, since devices can have both touch and mouse events.\n            // TODO: Make this check be performed again when the window switches between monitors\n            // (See https://github.com/videojs/video.js/issues/5683)\n            if (TOUCH_ENABLED) {\n                this.addClass('vjs-touch-enabled');\n            }\n\n            // iOS Safari has broken hover handling\n            if (!IS_IOS) {\n                this.addClass('vjs-workinghover');\n            }\n\n            // Make player easily findable by ID\n            Player.players[this.id_] = this;\n\n            // Add a major version class to aid css in plugins\n            const majorVersion = version$5.split('.')[0];\n            this.addClass(`vjs-v${majorVersion}`);\n\n            // When the player is first initialized, trigger activity so components\n            // like the control bar show themselves if needed\n            this.userActive(true);\n            this.reportUserActivity();\n            this.one('play', e => this.listenForUserActivity_(e));\n            this.on('keydown', e => this.handleKeyDown(e));\n            this.on('languagechange', e => this.handleLanguagechange(e));\n            this.breakpoints(this.options_.breakpoints);\n            this.responsive(this.options_.responsive);\n\n            // Calling both the audio mode methods after the player is fully\n            // setup to be able to listen to the events triggered by them\n            this.on('ready', () => {\n                // Calling the audioPosterMode method first so that\n                // the audioOnlyMode can take precedence when both options are set to true\n                this.audioPosterMode(this.options_.audioPosterMode);\n                this.audioOnlyMode(this.options_.audioOnlyMode);\n            });\n        }\n\n        /**\n         * Destroys the video player and does any necessary cleanup.\n         *\n         * This is especially helpful if you are dynamically adding and removing videos\n         * to/from the DOM.\n         *\n         * @fires Player#dispose\n         */\n        dispose() {\n            /**\n             * Called when the player is being disposed of.\n             *\n             * @event Player#dispose\n             * @type {Event}\n             */\n            this.trigger('dispose');\n            // prevent dispose from being called twice\n            this.off('dispose');\n\n            // Make sure all player-specific document listeners are unbound. This is\n            off(document, this.fsApi_.fullscreenchange, this.boundDocumentFullscreenChange_);\n            off(document, 'keydown', this.boundFullWindowOnEscKey_);\n            if (this.styleEl_ && this.styleEl_.parentNode) {\n                this.styleEl_.parentNode.removeChild(this.styleEl_);\n                this.styleEl_ = null;\n            }\n\n            // Kill reference to this player\n            Player.players[this.id_] = null;\n            if (this.tag && this.tag.player) {\n                this.tag.player = null;\n            }\n            if (this.el_ && this.el_.player) {\n                this.el_.player = null;\n            }\n            if (this.tech_) {\n                this.tech_.dispose();\n                this.isPosterFromTech_ = false;\n                this.poster_ = '';\n            }\n            if (this.playerElIngest_) {\n                this.playerElIngest_ = null;\n            }\n            if (this.tag) {\n                this.tag = null;\n            }\n            clearCacheForPlayer(this);\n\n            // remove all event handlers for track lists\n            // all tracks and track listeners are removed on\n            // tech dispose\n            ALL.names.forEach(name => {\n                const props = ALL[name];\n                const list = this[props.getterName]();\n\n                // if it is not a native list\n                // we have to manually remove event listeners\n                if (list && list.off) {\n                    list.off();\n                }\n            });\n\n            // the actual .el_ is removed here, or replaced if\n            super.dispose({\n                restoreEl: this.options_.restoreEl\n            });\n        }\n\n        /**\n         * Create the `Player`'s DOM element.\n         *\n         * @return {Element}\n         *         The DOM element that gets created.\n         */\n        createEl() {\n            let tag = this.tag;\n            let el;\n            let playerElIngest = this.playerElIngest_ = tag.parentNode && tag.parentNode.hasAttribute && tag.parentNode.hasAttribute('data-vjs-player');\n            const divEmbed = this.tag.tagName.toLowerCase() === 'video-js';\n            if (playerElIngest) {\n                el = this.el_ = tag.parentNode;\n            } else if (!divEmbed) {\n                el = this.el_ = super.createEl('div');\n            }\n\n            // Copy over all the attributes from the tag, including ID and class\n            // ID will now reference player box, not the video tag\n            const attrs = getAttributes(tag);\n            if (divEmbed) {\n                el = this.el_ = tag;\n                tag = this.tag = document.createElement('video');\n                while (el.children.length) {\n                    tag.appendChild(el.firstChild);\n                }\n                if (!hasClass(el, 'video-js')) {\n                    addClass(el, 'video-js');\n                }\n                el.appendChild(tag);\n                playerElIngest = this.playerElIngest_ = el;\n                // move properties over from our custom `video-js` element\n                // to our new `video` element. This will move things like\n                // `src` or `controls` that were set via js before the player\n                // was initialized.\n                Object.keys(el).forEach(k => {\n                    try {\n                        tag[k] = el[k];\n                    } catch (e) {\n                        // we got a a property like outerHTML which we can't actually copy, ignore it\n                    }\n                });\n            }\n\n            // set tabindex to -1 to remove the video element from the focus order\n            tag.setAttribute('tabindex', '-1');\n            attrs.tabindex = '-1';\n\n            // Workaround for #4583 on Chrome (on Windows) with JAWS.\n            // See https://github.com/FreedomScientific/VFO-standards-support/issues/78\n            // Note that we can't detect if JAWS is being used, but this ARIA attribute\n            // doesn't change behavior of Chrome if JAWS is not being used\n            if (IS_CHROME && IS_WINDOWS) {\n                tag.setAttribute('role', 'application');\n                attrs.role = 'application';\n            }\n\n            // Remove width/height attrs from tag so CSS can make it 100% width/height\n            tag.removeAttribute('width');\n            tag.removeAttribute('height');\n            if ('width' in attrs) {\n                delete attrs.width;\n            }\n            if ('height' in attrs) {\n                delete attrs.height;\n            }\n            Object.getOwnPropertyNames(attrs).forEach(function (attr) {\n                // don't copy over the class attribute to the player element when we're in a div embed\n                // the class is already set up properly in the divEmbed case\n                // and we want to make sure that the `video-js` class doesn't get lost\n                if (!(divEmbed && attr === 'class')) {\n                    el.setAttribute(attr, attrs[attr]);\n                }\n                if (divEmbed) {\n                    tag.setAttribute(attr, attrs[attr]);\n                }\n            });\n\n            // Update tag id/class for use as HTML5 playback tech\n            // Might think we should do this after embedding in container so .vjs-tech class\n            // doesn't flash 100% width/height, but class only applies with .video-js parent\n            tag.playerId = tag.id;\n            tag.id += '_html5_api';\n            tag.className = 'vjs-tech';\n\n            // Make player findable on elements\n            tag.player = el.player = this;\n            // Default state of video is paused\n            this.addClass('vjs-paused');\n\n            // Add a style element in the player that we'll use to set the width/height\n            // of the player in a way that's still overridable by CSS, just like the\n            // video element\n            if (window.VIDEOJS_NO_DYNAMIC_STYLE !== true) {\n                this.styleEl_ = createStyleElement('vjs-styles-dimensions');\n                const defaultsStyleEl = $('.vjs-styles-defaults');\n                const head = $('head');\n                head.insertBefore(this.styleEl_, defaultsStyleEl ? defaultsStyleEl.nextSibling : head.firstChild);\n            }\n            this.fill_ = false;\n            this.fluid_ = false;\n\n            // Pass in the width/height/aspectRatio options which will update the style el\n            this.width(this.options_.width);\n            this.height(this.options_.height);\n            this.fill(this.options_.fill);\n            this.fluid(this.options_.fluid);\n            this.aspectRatio(this.options_.aspectRatio);\n            // support both crossOrigin and crossorigin to reduce confusion and issues around the name\n            this.crossOrigin(this.options_.crossOrigin || this.options_.crossorigin);\n\n            // Hide any links within the video/audio tag,\n            // because IE doesn't hide them completely from screen readers.\n            const links = tag.getElementsByTagName('a');\n            for (let i = 0; i < links.length; i++) {\n                const linkEl = links.item(i);\n                addClass(linkEl, 'vjs-hidden');\n                linkEl.setAttribute('hidden', 'hidden');\n            }\n\n            // insertElFirst seems to cause the networkState to flicker from 3 to 2, so\n            // keep track of the original for later so we can know if the source originally failed\n            tag.initNetworkState_ = tag.networkState;\n\n            // Wrap video tag in div (el/box) container\n            if (tag.parentNode && !playerElIngest) {\n                tag.parentNode.insertBefore(el, tag);\n            }\n\n            // insert the tag as the first child of the player element\n            // then manually add it to the children array so that this.addChild\n            // will work properly for other components\n            //\n            // Breaks iPhone, fixed in HTML5 setup.\n            prependTo(tag, el);\n            this.children_.unshift(tag);\n\n            // Set lang attr on player to ensure CSS :lang() in consistent with player\n            // if it's been set to something different to the doc\n            this.el_.setAttribute('lang', this.language_);\n            this.el_.setAttribute('translate', 'no');\n            this.el_ = el;\n            return el;\n        }\n\n        /**\n         * Get or set the `Player`'s crossOrigin option. For the HTML5 player, this\n         * sets the `crossOrigin` property on the `<video>` tag to control the CORS\n         * behavior.\n         *\n         * @see [Video Element Attributes]{@link https://developer.mozilla.org/en-US/docs/Web/HTML/Element/video#attr-crossorigin}\n         *\n         * @param {string|null} [value]\n         *        The value to set the `Player`'s crossOrigin to. If an argument is\n         *        given, must be one of `'anonymous'` or `'use-credentials'`, or 'null'.\n         *\n         * @return {string|null|undefined}\n         *         - The current crossOrigin value of the `Player` when getting.\n         *         - undefined when setting\n         */\n        crossOrigin(value) {\n            // `null` can be set to unset a value\n            if (typeof value === 'undefined') {\n                return this.techGet_('crossOrigin');\n            }\n            if (value !== null && value !== 'anonymous' && value !== 'use-credentials') {\n                log$1.warn(`crossOrigin must be null,  \"anonymous\" or \"use-credentials\", given \"${value}\"`);\n                return;\n            }\n            this.techCall_('setCrossOrigin', value);\n            if (this.posterImage) {\n                this.posterImage.crossOrigin(value);\n            }\n            return;\n        }\n\n        /**\n         * A getter/setter for the `Player`'s width. Returns the player's configured value.\n         * To get the current width use `currentWidth()`.\n         *\n         * @param {number} [value]\n         *        The value to set the `Player`'s width to.\n         *\n         * @return {number}\n         *         The current width of the `Player` when getting.\n         */\n        width(value) {\n            return this.dimension('width', value);\n        }\n\n        /**\n         * A getter/setter for the `Player`'s height. Returns the player's configured value.\n         * To get the current height use `currentheight()`.\n         *\n         * @param {number} [value]\n         *        The value to set the `Player`'s height to.\n         *\n         * @return {number}\n         *         The current height of the `Player` when getting.\n         */\n        height(value) {\n            return this.dimension('height', value);\n        }\n\n        /**\n         * A getter/setter for the `Player`'s width & height.\n         *\n         * @param {string} dimension\n         *        This string can be:\n         *        - 'width'\n         *        - 'height'\n         *\n         * @param {number} [value]\n         *        Value for dimension specified in the first argument.\n         *\n         * @return {number}\n         *         The dimension arguments value when getting (width/height).\n         */\n        dimension(dimension, value) {\n            const privDimension = dimension + '_';\n            if (value === undefined) {\n                return this[privDimension] || 0;\n            }\n            if (value === '' || value === 'auto') {\n                // If an empty string is given, reset the dimension to be automatic\n                this[privDimension] = undefined;\n                this.updateStyleEl_();\n                return;\n            }\n            const parsedVal = parseFloat(value);\n            if (isNaN(parsedVal)) {\n                log$1.error(`Improper value \"${value}\" supplied for for ${dimension}`);\n                return;\n            }\n            this[privDimension] = parsedVal;\n            this.updateStyleEl_();\n        }\n\n        /**\n         * A getter/setter/toggler for the vjs-fluid `className` on the `Player`.\n         *\n         * Turning this on will turn off fill mode.\n         *\n         * @param {boolean} [bool]\n         *        - A value of true adds the class.\n         *        - A value of false removes the class.\n         *        - No value will be a getter.\n         *\n         * @return {boolean|undefined}\n         *         - The value of fluid when getting.\n         *         - `undefined` when setting.\n         */\n        fluid(bool) {\n            if (bool === undefined) {\n                return !!this.fluid_;\n            }\n            this.fluid_ = !!bool;\n            if (isEvented(this)) {\n                this.off(['playerreset', 'resize'], this.boundUpdateStyleEl_);\n            }\n            if (bool) {\n                this.addClass('vjs-fluid');\n                this.fill(false);\n                addEventedCallback(this, () => {\n                    this.on(['playerreset', 'resize'], this.boundUpdateStyleEl_);\n                });\n            } else {\n                this.removeClass('vjs-fluid');\n            }\n            this.updateStyleEl_();\n        }\n\n        /**\n         * A getter/setter/toggler for the vjs-fill `className` on the `Player`.\n         *\n         * Turning this on will turn off fluid mode.\n         *\n         * @param {boolean} [bool]\n         *        - A value of true adds the class.\n         *        - A value of false removes the class.\n         *        - No value will be a getter.\n         *\n         * @return {boolean|undefined}\n         *         - The value of fluid when getting.\n         *         - `undefined` when setting.\n         */\n        fill(bool) {\n            if (bool === undefined) {\n                return !!this.fill_;\n            }\n            this.fill_ = !!bool;\n            if (bool) {\n                this.addClass('vjs-fill');\n                this.fluid(false);\n            } else {\n                this.removeClass('vjs-fill');\n            }\n        }\n\n        /**\n         * Get/Set the aspect ratio\n         *\n         * @param {string} [ratio]\n         *        Aspect ratio for player\n         *\n         * @return {string|undefined}\n         *         returns the current aspect ratio when getting\n         */\n\n        /**\n         * A getter/setter for the `Player`'s aspect ratio.\n         *\n         * @param {string} [ratio]\n         *        The value to set the `Player`'s aspect ratio to.\n         *\n         * @return {string|undefined}\n         *         - The current aspect ratio of the `Player` when getting.\n         *         - undefined when setting\n         */\n        aspectRatio(ratio) {\n            if (ratio === undefined) {\n                return this.aspectRatio_;\n            }\n\n            // Check for width:height format\n            if (!/^\\d+\\:\\d+$/.test(ratio)) {\n                throw new Error('Improper value supplied for aspect ratio. The format should be width:height, for example 16:9.');\n            }\n            this.aspectRatio_ = ratio;\n\n            // We're assuming if you set an aspect ratio you want fluid mode,\n            // because in fixed mode you could calculate width and height yourself.\n            this.fluid(true);\n            this.updateStyleEl_();\n        }\n\n        /**\n         * Update styles of the `Player` element (height, width and aspect ratio).\n         *\n         * @private\n         * @listens Tech#loadedmetadata\n         */\n        updateStyleEl_() {\n            if (window.VIDEOJS_NO_DYNAMIC_STYLE === true) {\n                const width = typeof this.width_ === 'number' ? this.width_ : this.options_.width;\n                const height = typeof this.height_ === 'number' ? this.height_ : this.options_.height;\n                const techEl = this.tech_ && this.tech_.el();\n                if (techEl) {\n                    if (width >= 0) {\n                        techEl.width = width;\n                    }\n                    if (height >= 0) {\n                        techEl.height = height;\n                    }\n                }\n                return;\n            }\n            let width;\n            let height;\n            let aspectRatio;\n            let idClass;\n\n            // The aspect ratio is either used directly or to calculate width and height.\n            if (this.aspectRatio_ !== undefined && this.aspectRatio_ !== 'auto') {\n                // Use any aspectRatio that's been specifically set\n                aspectRatio = this.aspectRatio_;\n            } else if (this.videoWidth() > 0) {\n                // Otherwise try to get the aspect ratio from the video metadata\n                aspectRatio = this.videoWidth() + ':' + this.videoHeight();\n            } else {\n                // Or use a default. The video element's is 2:1, but 16:9 is more common.\n                aspectRatio = '16:9';\n            }\n\n            // Get the ratio as a decimal we can use to calculate dimensions\n            const ratioParts = aspectRatio.split(':');\n            const ratioMultiplier = ratioParts[1] / ratioParts[0];\n            if (this.width_ !== undefined) {\n                // Use any width that's been specifically set\n                width = this.width_;\n            } else if (this.height_ !== undefined) {\n                // Or calculate the width from the aspect ratio if a height has been set\n                width = this.height_ / ratioMultiplier;\n            } else {\n                // Or use the video's metadata, or use the video el's default of 300\n                width = this.videoWidth() || 300;\n            }\n            if (this.height_ !== undefined) {\n                // Use any height that's been specifically set\n                height = this.height_;\n            } else {\n                // Otherwise calculate the height from the ratio and the width\n                height = width * ratioMultiplier;\n            }\n\n            // Ensure the CSS class is valid by starting with an alpha character\n            if (/^[^a-zA-Z]/.test(this.id())) {\n                idClass = 'dimensions-' + this.id();\n            } else {\n                idClass = this.id() + '-dimensions';\n            }\n\n            // Ensure the right class is still on the player for the style element\n            this.addClass(idClass);\n            setTextContent(this.styleEl_, `\n      .${idClass} {\n        width: ${width}px;\n        height: ${height}px;\n      }\n\n      .${idClass}.vjs-fluid:not(.vjs-audio-only-mode) {\n        padding-top: ${ratioMultiplier * 100}%;\n      }\n    `);\n        }\n\n        /**\n         * Load/Create an instance of playback {@link Tech} including element\n         * and API methods. Then append the `Tech` element in `Player` as a child.\n         *\n         * @param {string} techName\n         *        name of the playback technology\n         *\n         * @param {string} source\n         *        video source\n         *\n         * @private\n         */\n        loadTech_(techName, source) {\n            // Pause and remove current playback technology\n            if (this.tech_) {\n                this.unloadTech_();\n            }\n            const titleTechName = toTitleCase$1(techName);\n            const camelTechName = techName.charAt(0).toLowerCase() + techName.slice(1);\n\n            // get rid of the HTML5 video tag as soon as we are using another tech\n            if (titleTechName !== 'Html5' && this.tag) {\n                Tech.getTech('Html5').disposeMediaElement(this.tag);\n                this.tag.player = null;\n                this.tag = null;\n            }\n            this.techName_ = titleTechName;\n\n            // Turn off API access because we're loading a new tech that might load asynchronously\n            this.isReady_ = false;\n            let autoplay = this.autoplay();\n\n            // if autoplay is a string (or `true` with normalizeAutoplay: true) we pass false to the tech\n            // because the player is going to handle autoplay on `loadstart`\n            if (typeof this.autoplay() === 'string' || this.autoplay() === true && this.options_.normalizeAutoplay) {\n                autoplay = false;\n            }\n\n            // Grab tech-specific options from player options and add source and parent element to use.\n            const techOptions = {\n                source,\n                autoplay,\n                'nativeControlsForTouch': this.options_.nativeControlsForTouch,\n                'playerId': this.id(),\n                'techId': `${this.id()}_${camelTechName}_api`,\n                'playsinline': this.options_.playsinline,\n                'preload': this.options_.preload,\n                'loop': this.options_.loop,\n                'disablePictureInPicture': this.options_.disablePictureInPicture,\n                'muted': this.options_.muted,\n                'poster': this.poster(),\n                'language': this.language(),\n                'playerElIngest': this.playerElIngest_ || false,\n                'vtt.js': this.options_['vtt.js'],\n                'canOverridePoster': !!this.options_.techCanOverridePoster,\n                'enableSourceset': this.options_.enableSourceset\n            };\n            ALL.names.forEach(name => {\n                const props = ALL[name];\n                techOptions[props.getterName] = this[props.privateName];\n            });\n            Object.assign(techOptions, this.options_[titleTechName]);\n            Object.assign(techOptions, this.options_[camelTechName]);\n            Object.assign(techOptions, this.options_[techName.toLowerCase()]);\n            if (this.tag) {\n                techOptions.tag = this.tag;\n            }\n            if (source && source.src === this.cache_.src && this.cache_.currentTime > 0) {\n                techOptions.startTime = this.cache_.currentTime;\n            }\n\n            // Initialize tech instance\n            const TechClass = Tech.getTech(techName);\n            if (!TechClass) {\n                throw new Error(`No Tech named '${titleTechName}' exists! '${titleTechName}' should be registered using videojs.registerTech()'`);\n            }\n            this.tech_ = new TechClass(techOptions);\n\n            // player.triggerReady is always async, so don't need this to be async\n            this.tech_.ready(bind_(this, this.handleTechReady_), true);\n            textTrackConverter.jsonToTextTracks(this.textTracksJson_ || [], this.tech_);\n\n            // Listen to all HTML5-defined events and trigger them on the player\n            TECH_EVENTS_RETRIGGER.forEach(event => {\n                this.on(this.tech_, event, e => this[`handleTech${toTitleCase$1(event)}_`](e));\n            });\n            Object.keys(TECH_EVENTS_QUEUE).forEach(event => {\n                this.on(this.tech_, event, eventObj => {\n                    if (this.tech_.playbackRate() === 0 && this.tech_.seeking()) {\n                        this.queuedCallbacks_.push({\n                            callback: this[`handleTech${TECH_EVENTS_QUEUE[event]}_`].bind(this),\n                            event: eventObj\n                        });\n                        return;\n                    }\n                    this[`handleTech${TECH_EVENTS_QUEUE[event]}_`](eventObj);\n                });\n            });\n            this.on(this.tech_, 'loadstart', e => this.handleTechLoadStart_(e));\n            this.on(this.tech_, 'sourceset', e => this.handleTechSourceset_(e));\n            this.on(this.tech_, 'waiting', e => this.handleTechWaiting_(e));\n            this.on(this.tech_, 'ended', e => this.handleTechEnded_(e));\n            this.on(this.tech_, 'seeking', e => this.handleTechSeeking_(e));\n            this.on(this.tech_, 'play', e => this.handleTechPlay_(e));\n            this.on(this.tech_, 'pause', e => this.handleTechPause_(e));\n            this.on(this.tech_, 'durationchange', e => this.handleTechDurationChange_(e));\n            this.on(this.tech_, 'fullscreenchange', (e, data) => this.handleTechFullscreenChange_(e, data));\n            this.on(this.tech_, 'fullscreenerror', (e, err) => this.handleTechFullscreenError_(e, err));\n            this.on(this.tech_, 'enterpictureinpicture', e => this.handleTechEnterPictureInPicture_(e));\n            this.on(this.tech_, 'leavepictureinpicture', e => this.handleTechLeavePictureInPicture_(e));\n            this.on(this.tech_, 'error', e => this.handleTechError_(e));\n            this.on(this.tech_, 'posterchange', e => this.handleTechPosterChange_(e));\n            this.on(this.tech_, 'textdata', e => this.handleTechTextData_(e));\n            this.on(this.tech_, 'ratechange', e => this.handleTechRateChange_(e));\n            this.on(this.tech_, 'loadedmetadata', this.boundUpdateStyleEl_);\n            this.usingNativeControls(this.techGet_('controls'));\n            if (this.controls() && !this.usingNativeControls()) {\n                this.addTechControlsListeners_();\n            }\n\n            // Add the tech element in the DOM if it was not already there\n            // Make sure to not insert the original video element if using Html5\n            if (this.tech_.el().parentNode !== this.el() && (titleTechName !== 'Html5' || !this.tag)) {\n                prependTo(this.tech_.el(), this.el());\n            }\n\n            // Get rid of the original video tag reference after the first tech is loaded\n            if (this.tag) {\n                this.tag.player = null;\n                this.tag = null;\n            }\n        }\n\n        /**\n         * Unload and dispose of the current playback {@link Tech}.\n         *\n         * @private\n         */\n        unloadTech_() {\n            // Save the current text tracks so that we can reuse the same text tracks with the next tech\n            ALL.names.forEach(name => {\n                const props = ALL[name];\n                this[props.privateName] = this[props.getterName]();\n            });\n            this.textTracksJson_ = textTrackConverter.textTracksToJson(this.tech_);\n            this.isReady_ = false;\n            this.tech_.dispose();\n            this.tech_ = false;\n            if (this.isPosterFromTech_) {\n                this.poster_ = '';\n                this.trigger('posterchange');\n            }\n            this.isPosterFromTech_ = false;\n        }\n\n        /**\n         * Return a reference to the current {@link Tech}.\n         * It will print a warning by default about the danger of using the tech directly\n         * but any argument that is passed in will silence the warning.\n         *\n         * @param {*} [safety]\n         *        Anything passed in to silence the warning\n         *\n         * @return {Tech}\n         *         The Tech\n         */\n        tech(safety) {\n            if (safety === undefined) {\n                log$1.warn('Using the tech directly can be dangerous. I hope you know what you\\'re doing.\\n' + 'See https://github.com/videojs/video.js/issues/2617 for more info.\\n');\n            }\n            return this.tech_;\n        }\n\n        /**\n         * Set up click and touch listeners for the playback element\n         *\n         * - On desktops: a click on the video itself will toggle playback\n         * - On mobile devices: a click on the video toggles controls\n         *   which is done by toggling the user state between active and\n         *   inactive\n         * - A tap can signal that a user has become active or has become inactive\n         *   e.g. a quick tap on an iPhone movie should reveal the controls. Another\n         *   quick tap should hide them again (signaling the user is in an inactive\n         *   viewing state)\n         * - In addition to this, we still want the user to be considered inactive after\n         *   a few seconds of inactivity.\n         *\n         * > Note: the only part of iOS interaction we can't mimic with this setup\n         * is a touch and hold on the video element counting as activity in order to\n         * keep the controls showing, but that shouldn't be an issue. A touch and hold\n         * on any controls will still keep the user active\n         *\n         * @private\n         */\n        addTechControlsListeners_() {\n            // Make sure to remove all the previous listeners in case we are called multiple times.\n            this.removeTechControlsListeners_();\n            this.on(this.tech_, 'click', this.boundHandleTechClick_);\n            this.on(this.tech_, 'dblclick', this.boundHandleTechDoubleClick_);\n\n            // If the controls were hidden we don't want that to change without a tap event\n            // so we'll check if the controls were already showing before reporting user\n            // activity\n            this.on(this.tech_, 'touchstart', this.boundHandleTechTouchStart_);\n            this.on(this.tech_, 'touchmove', this.boundHandleTechTouchMove_);\n            this.on(this.tech_, 'touchend', this.boundHandleTechTouchEnd_);\n\n            // The tap listener needs to come after the touchend listener because the tap\n            // listener cancels out any reportedUserActivity when setting userActive(false)\n            this.on(this.tech_, 'tap', this.boundHandleTechTap_);\n        }\n\n        /**\n         * Remove the listeners used for click and tap controls. This is needed for\n         * toggling to controls disabled, where a tap/touch should do nothing.\n         *\n         * @private\n         */\n        removeTechControlsListeners_() {\n            // We don't want to just use `this.off()` because there might be other needed\n            // listeners added by techs that extend this.\n            this.off(this.tech_, 'tap', this.boundHandleTechTap_);\n            this.off(this.tech_, 'touchstart', this.boundHandleTechTouchStart_);\n            this.off(this.tech_, 'touchmove', this.boundHandleTechTouchMove_);\n            this.off(this.tech_, 'touchend', this.boundHandleTechTouchEnd_);\n            this.off(this.tech_, 'click', this.boundHandleTechClick_);\n            this.off(this.tech_, 'dblclick', this.boundHandleTechDoubleClick_);\n        }\n\n        /**\n         * Player waits for the tech to be ready\n         *\n         * @private\n         */\n        handleTechReady_() {\n            this.triggerReady();\n\n            // Keep the same volume as before\n            if (this.cache_.volume) {\n                this.techCall_('setVolume', this.cache_.volume);\n            }\n\n            // Look if the tech found a higher resolution poster while loading\n            this.handleTechPosterChange_();\n\n            // Update the duration if available\n            this.handleTechDurationChange_();\n        }\n\n        /**\n         * Retrigger the `loadstart` event that was triggered by the {@link Tech}.\n         *\n         * @fires Player#loadstart\n         * @listens Tech#loadstart\n         * @private\n         */\n        handleTechLoadStart_() {\n            // TODO: Update to use `emptied` event instead. See #1277.\n\n            this.removeClass('vjs-ended', 'vjs-seeking');\n\n            // reset the error state\n            this.error(null);\n\n            // Update the duration\n            this.handleTechDurationChange_();\n            if (!this.paused()) {\n                /**\n                 * Fired when the user agent begins looking for media data\n                 *\n                 * @event Player#loadstart\n                 * @type {Event}\n                 */\n                this.trigger('loadstart');\n            } else {\n                // reset the hasStarted state\n                this.hasStarted(false);\n                this.trigger('loadstart');\n            }\n\n            // autoplay happens after loadstart for the browser,\n            // so we mimic that behavior\n            this.manualAutoplay_(this.autoplay() === true && this.options_.normalizeAutoplay ? 'play' : this.autoplay());\n        }\n\n        /**\n         * Handle autoplay string values, rather than the typical boolean\n         * values that should be handled by the tech. Note that this is not\n         * part of any specification. Valid values and what they do can be\n         * found on the autoplay getter at Player#autoplay()\n         */\n        manualAutoplay_(type) {\n            if (!this.tech_ || typeof type !== 'string') {\n                return;\n            }\n\n            // Save original muted() value, set muted to true, and attempt to play().\n            // On promise rejection, restore muted from saved value\n            const resolveMuted = () => {\n                const previouslyMuted = this.muted();\n                this.muted(true);\n                const restoreMuted = () => {\n                    this.muted(previouslyMuted);\n                };\n\n                // restore muted on play terminatation\n                this.playTerminatedQueue_.push(restoreMuted);\n                const mutedPromise = this.play();\n                if (!isPromise(mutedPromise)) {\n                    return;\n                }\n                return mutedPromise.catch(err => {\n                    restoreMuted();\n                    throw new Error(`Rejection at manualAutoplay. Restoring muted value. ${err ? err : ''}`);\n                });\n            };\n            let promise;\n\n            // if muted defaults to true\n            // the only thing we can do is call play\n            if (type === 'any' && !this.muted()) {\n                promise = this.play();\n                if (isPromise(promise)) {\n                    promise = promise.catch(resolveMuted);\n                }\n            } else if (type === 'muted' && !this.muted()) {\n                promise = resolveMuted();\n            } else {\n                promise = this.play();\n            }\n            if (!isPromise(promise)) {\n                return;\n            }\n            return promise.then(() => {\n                this.trigger({\n                    type: 'autoplay-success',\n                    autoplay: type\n                });\n            }).catch(() => {\n                this.trigger({\n                    type: 'autoplay-failure',\n                    autoplay: type\n                });\n            });\n        }\n\n        /**\n         * Update the internal source caches so that we return the correct source from\n         * `src()`, `currentSource()`, and `currentSources()`.\n         *\n         * > Note: `currentSources` will not be updated if the source that is passed in exists\n         *         in the current `currentSources` cache.\n         *\n         *\n         * @param {Tech~SourceObject} srcObj\n         *        A string or object source to update our caches to.\n         */\n        updateSourceCaches_(srcObj = '') {\n            let src = srcObj;\n            let type = '';\n            if (typeof src !== 'string') {\n                src = srcObj.src;\n                type = srcObj.type;\n            }\n\n            // make sure all the caches are set to default values\n            // to prevent null checking\n            this.cache_.source = this.cache_.source || {};\n            this.cache_.sources = this.cache_.sources || [];\n\n            // try to get the type of the src that was passed in\n            if (src && !type) {\n                type = findMimetype(this, src);\n            }\n\n            // update `currentSource` cache always\n            this.cache_.source = merge$2({}, srcObj, {\n                src,\n                type\n            });\n            const matchingSources = this.cache_.sources.filter(s => s.src && s.src === src);\n            const sourceElSources = [];\n            const sourceEls = this.$$('source');\n            const matchingSourceEls = [];\n            for (let i = 0; i < sourceEls.length; i++) {\n                const sourceObj = getAttributes(sourceEls[i]);\n                sourceElSources.push(sourceObj);\n                if (sourceObj.src && sourceObj.src === src) {\n                    matchingSourceEls.push(sourceObj.src);\n                }\n            }\n\n            // if we have matching source els but not matching sources\n            // the current source cache is not up to date\n            if (matchingSourceEls.length && !matchingSources.length) {\n                this.cache_.sources = sourceElSources;\n                // if we don't have matching source or source els set the\n                // sources cache to the `currentSource` cache\n            } else if (!matchingSources.length) {\n                this.cache_.sources = [this.cache_.source];\n            }\n\n            // update the tech `src` cache\n            this.cache_.src = src;\n        }\n\n        /**\n         * *EXPERIMENTAL* Fired when the source is set or changed on the {@link Tech}\n         * causing the media element to reload.\n         *\n         * It will fire for the initial source and each subsequent source.\n         * This event is a custom event from Video.js and is triggered by the {@link Tech}.\n         *\n         * The event object for this event contains a `src` property that will contain the source\n         * that was available when the event was triggered. This is generally only necessary if Video.js\n         * is switching techs while the source was being changed.\n         *\n         * It is also fired when `load` is called on the player (or media element)\n         * because the {@link https://html.spec.whatwg.org/multipage/media.html#dom-media-load|specification for `load`}\n         * says that the resource selection algorithm needs to be aborted and restarted.\n         * In this case, it is very likely that the `src` property will be set to the\n         * empty string `\"\"` to indicate we do not know what the source will be but\n         * that it is changing.\n         *\n         * *This event is currently still experimental and may change in minor releases.*\n         * __To use this, pass `enableSourceset` option to the player.__\n         *\n         * @event Player#sourceset\n         * @type {Event}\n         * @prop {string} src\n         *                The source url available when the `sourceset` was triggered.\n         *                It will be an empty string if we cannot know what the source is\n         *                but know that the source will change.\n         */\n        /**\n         * Retrigger the `sourceset` event that was triggered by the {@link Tech}.\n         *\n         * @fires Player#sourceset\n         * @listens Tech#sourceset\n         * @private\n         */\n        handleTechSourceset_(event) {\n            // only update the source cache when the source\n            // was not updated using the player api\n            if (!this.changingSrc_) {\n                let updateSourceCaches = src => this.updateSourceCaches_(src);\n                const playerSrc = this.currentSource().src;\n                const eventSrc = event.src;\n\n                // if we have a playerSrc that is not a blob, and a tech src that is a blob\n                if (playerSrc && !/^blob:/.test(playerSrc) && /^blob:/.test(eventSrc)) {\n                    // if both the tech source and the player source were updated we assume\n                    // something like @videojs/http-streaming did the sourceset and skip updating the source cache.\n                    if (!this.lastSource_ || this.lastSource_.tech !== eventSrc && this.lastSource_.player !== playerSrc) {\n                        updateSourceCaches = () => {};\n                    }\n                }\n\n                // update the source to the initial source right away\n                // in some cases this will be empty string\n                updateSourceCaches(eventSrc);\n\n                // if the `sourceset` `src` was an empty string\n                // wait for a `loadstart` to update the cache to `currentSrc`.\n                // If a sourceset happens before a `loadstart`, we reset the state\n                if (!event.src) {\n                    this.tech_.any(['sourceset', 'loadstart'], e => {\n                        // if a sourceset happens before a `loadstart` there\n                        // is nothing to do as this `handleTechSourceset_`\n                        // will be called again and this will be handled there.\n                        if (e.type === 'sourceset') {\n                            return;\n                        }\n                        const techSrc = this.techGet('currentSrc');\n                        this.lastSource_.tech = techSrc;\n                        this.updateSourceCaches_(techSrc);\n                    });\n                }\n            }\n            this.lastSource_ = {\n                player: this.currentSource().src,\n                tech: event.src\n            };\n            this.trigger({\n                src: event.src,\n                type: 'sourceset'\n            });\n        }\n\n        /**\n         * Add/remove the vjs-has-started class\n         *\n         *\n         * @param {boolean} request\n         *        - true: adds the class\n         *        - false: remove the class\n         *\n         * @return {boolean}\n         *         the boolean value of hasStarted_\n         */\n        hasStarted(request) {\n            if (request === undefined) {\n                // act as getter, if we have no request to change\n                return this.hasStarted_;\n            }\n            if (request === this.hasStarted_) {\n                return;\n            }\n            this.hasStarted_ = request;\n            if (this.hasStarted_) {\n                this.addClass('vjs-has-started');\n            } else {\n                this.removeClass('vjs-has-started');\n            }\n        }\n\n        /**\n         * Fired whenever the media begins or resumes playback\n         *\n         * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#dom-media-play}\n         * @fires Player#play\n         * @listens Tech#play\n         * @private\n         */\n        handleTechPlay_() {\n            this.removeClass('vjs-ended', 'vjs-paused');\n            this.addClass('vjs-playing');\n\n            // hide the poster when the user hits play\n            this.hasStarted(true);\n            /**\n             * Triggered whenever an {@link Tech#play} event happens. Indicates that\n             * playback has started or resumed.\n             *\n             * @event Player#play\n             * @type {Event}\n             */\n            this.trigger('play');\n        }\n\n        /**\n         * Retrigger the `ratechange` event that was triggered by the {@link Tech}.\n         *\n         * If there were any events queued while the playback rate was zero, fire\n         * those events now.\n         *\n         * @private\n         * @method Player#handleTechRateChange_\n         * @fires Player#ratechange\n         * @listens Tech#ratechange\n         */\n        handleTechRateChange_() {\n            if (this.tech_.playbackRate() > 0 && this.cache_.lastPlaybackRate === 0) {\n                this.queuedCallbacks_.forEach(queued => queued.callback(queued.event));\n                this.queuedCallbacks_ = [];\n            }\n            this.cache_.lastPlaybackRate = this.tech_.playbackRate();\n            /**\n             * Fires when the playing speed of the audio/video is changed\n             *\n             * @event Player#ratechange\n             * @type {event}\n             */\n            this.trigger('ratechange');\n        }\n\n        /**\n         * Retrigger the `waiting` event that was triggered by the {@link Tech}.\n         *\n         * @fires Player#waiting\n         * @listens Tech#waiting\n         * @private\n         */\n        handleTechWaiting_() {\n            this.addClass('vjs-waiting');\n            /**\n             * A readyState change on the DOM element has caused playback to stop.\n             *\n             * @event Player#waiting\n             * @type {Event}\n             */\n            this.trigger('waiting');\n\n            // Browsers may emit a timeupdate event after a waiting event. In order to prevent\n            // premature removal of the waiting class, wait for the time to change.\n            const timeWhenWaiting = this.currentTime();\n            const timeUpdateListener = () => {\n                if (timeWhenWaiting !== this.currentTime()) {\n                    this.removeClass('vjs-waiting');\n                    this.off('timeupdate', timeUpdateListener);\n                }\n            };\n            this.on('timeupdate', timeUpdateListener);\n        }\n\n        /**\n         * Retrigger the `canplay` event that was triggered by the {@link Tech}.\n         * > Note: This is not consistent between browsers. See #1351\n         *\n         * @fires Player#canplay\n         * @listens Tech#canplay\n         * @private\n         */\n        handleTechCanPlay_() {\n            this.removeClass('vjs-waiting');\n            /**\n             * The media has a readyState of HAVE_FUTURE_DATA or greater.\n             *\n             * @event Player#canplay\n             * @type {Event}\n             */\n            this.trigger('canplay');\n        }\n\n        /**\n         * Retrigger the `canplaythrough` event that was triggered by the {@link Tech}.\n         *\n         * @fires Player#canplaythrough\n         * @listens Tech#canplaythrough\n         * @private\n         */\n        handleTechCanPlayThrough_() {\n            this.removeClass('vjs-waiting');\n            /**\n             * The media has a readyState of HAVE_ENOUGH_DATA or greater. This means that the\n             * entire media file can be played without buffering.\n             *\n             * @event Player#canplaythrough\n             * @type {Event}\n             */\n            this.trigger('canplaythrough');\n        }\n\n        /**\n         * Retrigger the `playing` event that was triggered by the {@link Tech}.\n         *\n         * @fires Player#playing\n         * @listens Tech#playing\n         * @private\n         */\n        handleTechPlaying_() {\n            this.removeClass('vjs-waiting');\n            /**\n             * The media is no longer blocked from playback, and has started playing.\n             *\n             * @event Player#playing\n             * @type {Event}\n             */\n            this.trigger('playing');\n        }\n\n        /**\n         * Retrigger the `seeking` event that was triggered by the {@link Tech}.\n         *\n         * @fires Player#seeking\n         * @listens Tech#seeking\n         * @private\n         */\n        handleTechSeeking_() {\n            this.addClass('vjs-seeking');\n            /**\n             * Fired whenever the player is jumping to a new time\n             *\n             * @event Player#seeking\n             * @type {Event}\n             */\n            this.trigger('seeking');\n        }\n\n        /**\n         * Retrigger the `seeked` event that was triggered by the {@link Tech}.\n         *\n         * @fires Player#seeked\n         * @listens Tech#seeked\n         * @private\n         */\n        handleTechSeeked_() {\n            this.removeClass('vjs-seeking', 'vjs-ended');\n            /**\n             * Fired when the player has finished jumping to a new time\n             *\n             * @event Player#seeked\n             * @type {Event}\n             */\n            this.trigger('seeked');\n        }\n\n        /**\n         * Retrigger the `pause` event that was triggered by the {@link Tech}.\n         *\n         * @fires Player#pause\n         * @listens Tech#pause\n         * @private\n         */\n        handleTechPause_() {\n            this.removeClass('vjs-playing');\n            this.addClass('vjs-paused');\n            /**\n             * Fired whenever the media has been paused\n             *\n             * @event Player#pause\n             * @type {Event}\n             */\n            this.trigger('pause');\n        }\n\n        /**\n         * Retrigger the `ended` event that was triggered by the {@link Tech}.\n         *\n         * @fires Player#ended\n         * @listens Tech#ended\n         * @private\n         */\n        handleTechEnded_() {\n            this.addClass('vjs-ended');\n            this.removeClass('vjs-waiting');\n            if (this.options_.loop) {\n                this.currentTime(0);\n                this.play();\n            } else if (!this.paused()) {\n                this.pause();\n            }\n\n            /**\n             * Fired when the end of the media resource is reached (currentTime == duration)\n             *\n             * @event Player#ended\n             * @type {Event}\n             */\n            this.trigger('ended');\n        }\n\n        /**\n         * Fired when the duration of the media resource is first known or changed\n         *\n         * @listens Tech#durationchange\n         * @private\n         */\n        handleTechDurationChange_() {\n            this.duration(this.techGet_('duration'));\n        }\n\n        /**\n         * Handle a click on the media element to play/pause\n         *\n         * @param {Event} event\n         *        the event that caused this function to trigger\n         *\n         * @listens Tech#click\n         * @private\n         */\n        handleTechClick_(event) {\n            // When controls are disabled a click should not toggle playback because\n            // the click is considered a control\n            if (!this.controls_) {\n                return;\n            }\n            if (this.options_ === undefined || this.options_.userActions === undefined || this.options_.userActions.click === undefined || this.options_.userActions.click !== false) {\n                if (this.options_ !== undefined && this.options_.userActions !== undefined && typeof this.options_.userActions.click === 'function') {\n                    this.options_.userActions.click.call(this, event);\n                } else if (this.paused()) {\n                    silencePromise(this.play());\n                } else {\n                    this.pause();\n                }\n            }\n        }\n\n        /**\n         * Handle a double-click on the media element to enter/exit fullscreen\n         *\n         * @param {Event} event\n         *        the event that caused this function to trigger\n         *\n         * @listens Tech#dblclick\n         * @private\n         */\n        handleTechDoubleClick_(event) {\n            if (!this.controls_) {\n                return;\n            }\n\n            // we do not want to toggle fullscreen state\n            // when double-clicking inside a control bar or a modal\n            const inAllowedEls = Array.prototype.some.call(this.$$('.vjs-control-bar, .vjs-modal-dialog'), el => el.contains(event.target));\n            if (!inAllowedEls) {\n                /*\n         * options.userActions.doubleClick\n         *\n         * If `undefined` or `true`, double-click toggles fullscreen if controls are present\n         * Set to `false` to disable double-click handling\n         * Set to a function to substitute an external double-click handler\n         */\n                if (this.options_ === undefined || this.options_.userActions === undefined || this.options_.userActions.doubleClick === undefined || this.options_.userActions.doubleClick !== false) {\n                    if (this.options_ !== undefined && this.options_.userActions !== undefined && typeof this.options_.userActions.doubleClick === 'function') {\n                        this.options_.userActions.doubleClick.call(this, event);\n                    } else if (this.isFullscreen()) {\n                        this.exitFullscreen();\n                    } else {\n                        this.requestFullscreen();\n                    }\n                }\n            }\n        }\n\n        /**\n         * Handle a tap on the media element. It will toggle the user\n         * activity state, which hides and shows the controls.\n         *\n         * @listens Tech#tap\n         * @private\n         */\n        handleTechTap_() {\n            this.userActive(!this.userActive());\n        }\n\n        /**\n         * Handle touch to start\n         *\n         * @listens Tech#touchstart\n         * @private\n         */\n        handleTechTouchStart_() {\n            this.userWasActive = this.userActive();\n        }\n\n        /**\n         * Handle touch to move\n         *\n         * @listens Tech#touchmove\n         * @private\n         */\n        handleTechTouchMove_() {\n            if (this.userWasActive) {\n                this.reportUserActivity();\n            }\n        }\n\n        /**\n         * Handle touch to end\n         *\n         * @param {Event} event\n         *        the touchend event that triggered\n         *        this function\n         *\n         * @listens Tech#touchend\n         * @private\n         */\n        handleTechTouchEnd_(event) {\n            // Stop the mouse events from also happening\n            if (event.cancelable) {\n                event.preventDefault();\n            }\n        }\n\n        /**\n         * @private\n         */\n        toggleFullscreenClass_() {\n            if (this.isFullscreen()) {\n                this.addClass('vjs-fullscreen');\n            } else {\n                this.removeClass('vjs-fullscreen');\n            }\n        }\n\n        /**\n         * when the document fschange event triggers it calls this\n         */\n        documentFullscreenChange_(e) {\n            const targetPlayer = e.target.player;\n\n            // if another player was fullscreen\n            // do a null check for targetPlayer because older firefox's would put document as e.target\n            if (targetPlayer && targetPlayer !== this) {\n                return;\n            }\n            const el = this.el();\n            let isFs = document[this.fsApi_.fullscreenElement] === el;\n            if (!isFs && el.matches) {\n                isFs = el.matches(':' + this.fsApi_.fullscreen);\n            } else if (!isFs && el.msMatchesSelector) {\n                isFs = el.msMatchesSelector(':' + this.fsApi_.fullscreen);\n            }\n            this.isFullscreen(isFs);\n        }\n\n        /**\n         * Handle Tech Fullscreen Change\n         *\n         * @param {Event} event\n         *        the fullscreenchange event that triggered this function\n         *\n         * @param {Object} data\n         *        the data that was sent with the event\n         *\n         * @private\n         * @listens Tech#fullscreenchange\n         * @fires Player#fullscreenchange\n         */\n        handleTechFullscreenChange_(event, data) {\n            if (data) {\n                if (data.nativeIOSFullscreen) {\n                    this.addClass('vjs-ios-native-fs');\n                    this.tech_.one('webkitendfullscreen', () => {\n                        this.removeClass('vjs-ios-native-fs');\n                    });\n                }\n                this.isFullscreen(data.isFullscreen);\n            }\n        }\n        handleTechFullscreenError_(event, err) {\n            this.trigger('fullscreenerror', err);\n        }\n\n        /**\n         * @private\n         */\n        togglePictureInPictureClass_() {\n            if (this.isInPictureInPicture()) {\n                this.addClass('vjs-picture-in-picture');\n            } else {\n                this.removeClass('vjs-picture-in-picture');\n            }\n        }\n\n        /**\n         * Handle Tech Enter Picture-in-Picture.\n         *\n         * @param {Event} event\n         *        the enterpictureinpicture event that triggered this function\n         *\n         * @private\n         * @listens Tech#enterpictureinpicture\n         */\n        handleTechEnterPictureInPicture_(event) {\n            this.isInPictureInPicture(true);\n        }\n\n        /**\n         * Handle Tech Leave Picture-in-Picture.\n         *\n         * @param {Event} event\n         *        the leavepictureinpicture event that triggered this function\n         *\n         * @private\n         * @listens Tech#leavepictureinpicture\n         */\n        handleTechLeavePictureInPicture_(event) {\n            this.isInPictureInPicture(false);\n        }\n\n        /**\n         * Fires when an error occurred during the loading of an audio/video.\n         *\n         * @private\n         * @listens Tech#error\n         */\n        handleTechError_() {\n            const error = this.tech_.error();\n            this.error(error);\n        }\n\n        /**\n         * Retrigger the `textdata` event that was triggered by the {@link Tech}.\n         *\n         * @fires Player#textdata\n         * @listens Tech#textdata\n         * @private\n         */\n        handleTechTextData_() {\n            let data = null;\n            if (arguments.length > 1) {\n                data = arguments[1];\n            }\n\n            /**\n             * Fires when we get a textdata event from tech\n             *\n             * @event Player#textdata\n             * @type {Event}\n             */\n            this.trigger('textdata', data);\n        }\n\n        /**\n         * Get object for cached values.\n         *\n         * @return {Object}\n         *         get the current object cache\n         */\n        getCache() {\n            return this.cache_;\n        }\n\n        /**\n         * Resets the internal cache object.\n         *\n         * Using this function outside the player constructor or reset method may\n         * have unintended side-effects.\n         *\n         * @private\n         */\n        resetCache_() {\n            this.cache_ = {\n                // Right now, the currentTime is not _really_ cached because it is always\n                // retrieved from the tech (see: currentTime). However, for completeness,\n                // we set it to zero here to ensure that if we do start actually caching\n                // it, we reset it along with everything else.\n                currentTime: 0,\n                initTime: 0,\n                inactivityTimeout: this.options_.inactivityTimeout,\n                duration: NaN,\n                lastVolume: 1,\n                lastPlaybackRate: this.defaultPlaybackRate(),\n                media: null,\n                src: '',\n                source: {},\n                sources: [],\n                playbackRates: [],\n                volume: 1\n            };\n        }\n\n        /**\n         * Pass values to the playback tech\n         *\n         * @param {string} [method]\n         *        the method to call\n         *\n         * @param {Object} arg\n         *        the argument to pass\n         *\n         * @private\n         */\n        techCall_(method, arg) {\n            // If it's not ready yet, call method when it is\n\n            this.ready(function () {\n                if (method in allowedSetters) {\n                    return set(this.middleware_, this.tech_, method, arg);\n                } else if (method in allowedMediators) {\n                    return mediate(this.middleware_, this.tech_, method, arg);\n                }\n                try {\n                    if (this.tech_) {\n                        this.tech_[method](arg);\n                    }\n                } catch (e) {\n                    log$1(e);\n                    throw e;\n                }\n            }, true);\n        }\n\n        /**\n         * Mediate attempt to call playback tech method\n         * and return the value of the method called.\n         *\n         * @param {string} method\n         *        Tech method\n         *\n         * @return {*}\n         *         Value returned by the tech method called, undefined if tech\n         *         is not ready or tech method is not present\n         *\n         * @private\n         */\n        techGet_(method) {\n            if (!this.tech_ || !this.tech_.isReady_) {\n                return;\n            }\n            if (method in allowedGetters) {\n                return get(this.middleware_, this.tech_, method);\n            } else if (method in allowedMediators) {\n                return mediate(this.middleware_, this.tech_, method);\n            }\n\n            // Log error when playback tech object is present but method\n            // is undefined or unavailable\n            try {\n                return this.tech_[method]();\n            } catch (e) {\n                // When building additional tech libs, an expected method may not be defined yet\n                if (this.tech_[method] === undefined) {\n                    log$1(`Video.js: ${method} method not defined for ${this.techName_} playback technology.`, e);\n                    throw e;\n                }\n\n                // When a method isn't available on the object it throws a TypeError\n                if (e.name === 'TypeError') {\n                    log$1(`Video.js: ${method} unavailable on ${this.techName_} playback technology element.`, e);\n                    this.tech_.isReady_ = false;\n                    throw e;\n                }\n\n                // If error unknown, just log and throw\n                log$1(e);\n                throw e;\n            }\n        }\n\n        /**\n         * Attempt to begin playback at the first opportunity.\n         *\n         * @return {Promise|undefined}\n         *         Returns a promise if the browser supports Promises (or one\n         *         was passed in as an option). This promise will be resolved on\n         *         the return value of play. If this is undefined it will fulfill the\n         *         promise chain otherwise the promise chain will be fulfilled when\n         *         the promise from play is fulfilled.\n         */\n        play() {\n            return new Promise(resolve => {\n                this.play_(resolve);\n            });\n        }\n\n        /**\n         * The actual logic for play, takes a callback that will be resolved on the\n         * return value of play. This allows us to resolve to the play promise if there\n         * is one on modern browsers.\n         *\n         * @private\n         * @param {Function} [callback]\n         *        The callback that should be called when the techs play is actually called\n         */\n        play_(callback = silencePromise) {\n            this.playCallbacks_.push(callback);\n            const isSrcReady = Boolean(!this.changingSrc_ && (this.src() || this.currentSrc()));\n            const isSafariOrIOS = Boolean(IS_ANY_SAFARI || IS_IOS);\n\n            // treat calls to play_ somewhat like the `one` event function\n            if (this.waitToPlay_) {\n                this.off(['ready', 'loadstart'], this.waitToPlay_);\n                this.waitToPlay_ = null;\n            }\n\n            // if the player/tech is not ready or the src itself is not ready\n            // queue up a call to play on `ready` or `loadstart`\n            if (!this.isReady_ || !isSrcReady) {\n                this.waitToPlay_ = e => {\n                    this.play_();\n                };\n                this.one(['ready', 'loadstart'], this.waitToPlay_);\n\n                // if we are in Safari, there is a high chance that loadstart will trigger after the gesture timeperiod\n                // in that case, we need to prime the video element by calling load so it'll be ready in time\n                if (!isSrcReady && isSafariOrIOS) {\n                    this.load();\n                }\n                return;\n            }\n\n            // If the player/tech is ready and we have a source, we can attempt playback.\n            const val = this.techGet_('play');\n\n            // For native playback, reset the progress bar if we get a play call from a replay.\n            const isNativeReplay = isSafariOrIOS && this.hasClass('vjs-ended');\n            if (isNativeReplay) {\n                this.resetProgressBar_();\n            }\n            // play was terminated if the returned value is null\n            if (val === null) {\n                this.runPlayTerminatedQueue_();\n            } else {\n                this.runPlayCallbacks_(val);\n            }\n        }\n\n        /**\n         * These functions will be run when if play is terminated. If play\n         * runPlayCallbacks_ is run these function will not be run. This allows us\n         * to differentiate between a terminated play and an actual call to play.\n         */\n        runPlayTerminatedQueue_() {\n            const queue = this.playTerminatedQueue_.slice(0);\n            this.playTerminatedQueue_ = [];\n            queue.forEach(function (q) {\n                q();\n            });\n        }\n\n        /**\n         * When a callback to play is delayed we have to run these\n         * callbacks when play is actually called on the tech. This function\n         * runs the callbacks that were delayed and accepts the return value\n         * from the tech.\n         *\n         * @param {undefined|Promise} val\n         *        The return value from the tech.\n         */\n        runPlayCallbacks_(val) {\n            const callbacks = this.playCallbacks_.slice(0);\n            this.playCallbacks_ = [];\n            // clear play terminatedQueue since we finished a real play\n            this.playTerminatedQueue_ = [];\n            callbacks.forEach(function (cb) {\n                cb(val);\n            });\n        }\n\n        /**\n         * Pause the video playback\n         *\n         * @return {Player}\n         *         A reference to the player object this function was called on\n         */\n        pause() {\n            this.techCall_('pause');\n        }\n\n        /**\n         * Check if the player is paused or has yet to play\n         *\n         * @return {boolean}\n         *         - false: if the media is currently playing\n         *         - true: if media is not currently playing\n         */\n        paused() {\n            // The initial state of paused should be true (in Safari it's actually false)\n            return this.techGet_('paused') === false ? false : true;\n        }\n\n        /**\n         * Get a TimeRange object representing the current ranges of time that the user\n         * has played.\n         *\n         * @return { import('./utils/time').TimeRange }\n         *         A time range object that represents all the increments of time that have\n         *         been played.\n         */\n        played() {\n            return this.techGet_('played') || createTimeRanges$1(0, 0);\n        }\n\n        /**\n         * Returns whether or not the user is \"scrubbing\". Scrubbing is\n         * when the user has clicked the progress bar handle and is\n         * dragging it along the progress bar.\n         *\n         * @param {boolean} [isScrubbing]\n         *        whether the user is or is not scrubbing\n         *\n         * @return {boolean}\n         *         The value of scrubbing when getting\n         */\n        scrubbing(isScrubbing) {\n            if (typeof isScrubbing === 'undefined') {\n                return this.scrubbing_;\n            }\n            this.scrubbing_ = !!isScrubbing;\n            this.techCall_('setScrubbing', this.scrubbing_);\n            if (isScrubbing) {\n                this.addClass('vjs-scrubbing');\n            } else {\n                this.removeClass('vjs-scrubbing');\n            }\n        }\n\n        /**\n         * Get or set the current time (in seconds)\n         *\n         * @param {number|string} [seconds]\n         *        The time to seek to in seconds\n         *\n         * @return {number}\n         *         - the current time in seconds when getting\n         */\n        currentTime(seconds) {\n            if (typeof seconds !== 'undefined') {\n                if (seconds < 0) {\n                    seconds = 0;\n                }\n                if (!this.isReady_ || this.changingSrc_ || !this.tech_ || !this.tech_.isReady_) {\n                    this.cache_.initTime = seconds;\n                    this.off('canplay', this.boundApplyInitTime_);\n                    this.one('canplay', this.boundApplyInitTime_);\n                    return;\n                }\n                this.techCall_('setCurrentTime', seconds);\n                this.cache_.initTime = 0;\n                return;\n            }\n\n            // cache last currentTime and return. default to 0 seconds\n            //\n            // Caching the currentTime is meant to prevent a massive amount of reads on the tech's\n            // currentTime when scrubbing, but may not provide much performance benefit after all.\n            // Should be tested. Also something has to read the actual current time or the cache will\n            // never get updated.\n            this.cache_.currentTime = this.techGet_('currentTime') || 0;\n            return this.cache_.currentTime;\n        }\n\n        /**\n         * Apply the value of initTime stored in cache as currentTime.\n         *\n         * @private\n         */\n        applyInitTime_() {\n            this.currentTime(this.cache_.initTime);\n        }\n\n        /**\n         * Normally gets the length in time of the video in seconds;\n         * in all but the rarest use cases an argument will NOT be passed to the method\n         *\n         * > **NOTE**: The video must have started loading before the duration can be\n         * known, and depending on preload behaviour may not be known until the video starts\n         * playing.\n         *\n         * @fires Player#durationchange\n         *\n         * @param {number} [seconds]\n         *        The duration of the video to set in seconds\n         *\n         * @return {number}\n         *         - The duration of the video in seconds when getting\n         */\n        duration(seconds) {\n            if (seconds === undefined) {\n                // return NaN if the duration is not known\n                return this.cache_.duration !== undefined ? this.cache_.duration : NaN;\n            }\n            seconds = parseFloat(seconds);\n\n            // Standardize on Infinity for signaling video is live\n            if (seconds < 0) {\n                seconds = Infinity;\n            }\n            if (seconds !== this.cache_.duration) {\n                // Cache the last set value for optimized scrubbing\n                this.cache_.duration = seconds;\n                if (seconds === Infinity) {\n                    this.addClass('vjs-live');\n                } else {\n                    this.removeClass('vjs-live');\n                }\n                if (!isNaN(seconds)) {\n                    // Do not fire durationchange unless the duration value is known.\n                    // @see [Spec]{@link https://www.w3.org/TR/2011/WD-html5-20110113/video.html#media-element-load-algorithm}\n\n                    /**\n                     * @event Player#durationchange\n                     * @type {Event}\n                     */\n                    this.trigger('durationchange');\n                }\n            }\n        }\n\n        /**\n         * Calculates how much time is left in the video. Not part\n         * of the native video API.\n         *\n         * @return {number}\n         *         The time remaining in seconds\n         */\n        remainingTime() {\n            return this.duration() - this.currentTime();\n        }\n\n        /**\n         * A remaining time function that is intended to be used when\n         * the time is to be displayed directly to the user.\n         *\n         * @return {number}\n         *         The rounded time remaining in seconds\n         */\n        remainingTimeDisplay() {\n            return Math.floor(this.duration()) - Math.floor(this.currentTime());\n        }\n\n        //\n        // Kind of like an array of portions of the video that have been downloaded.\n\n        /**\n         * Get a TimeRange object with an array of the times of the video\n         * that have been downloaded. If you just want the percent of the\n         * video that's been downloaded, use bufferedPercent.\n         *\n         * @see [Buffered Spec]{@link http://dev.w3.org/html5/spec/video.html#dom-media-buffered}\n         *\n         * @return { import('./utils/time').TimeRange }\n         *         A mock {@link TimeRanges} object (following HTML spec)\n         */\n        buffered() {\n            let buffered = this.techGet_('buffered');\n            if (!buffered || !buffered.length) {\n                buffered = createTimeRanges$1(0, 0);\n            }\n            return buffered;\n        }\n\n        /**\n         * Get the percent (as a decimal) of the video that's been downloaded.\n         * This method is not a part of the native HTML video API.\n         *\n         * @return {number}\n         *         A decimal between 0 and 1 representing the percent\n         *         that is buffered 0 being 0% and 1 being 100%\n         */\n        bufferedPercent() {\n            return bufferedPercent(this.buffered(), this.duration());\n        }\n\n        /**\n         * Get the ending time of the last buffered time range\n         * This is used in the progress bar to encapsulate all time ranges.\n         *\n         * @return {number}\n         *         The end of the last buffered time range\n         */\n        bufferedEnd() {\n            const buffered = this.buffered();\n            const duration = this.duration();\n            let end = buffered.end(buffered.length - 1);\n            if (end > duration) {\n                end = duration;\n            }\n            return end;\n        }\n\n        /**\n         * Get or set the current volume of the media\n         *\n         * @param  {number} [percentAsDecimal]\n         *         The new volume as a decimal percent:\n         *         - 0 is muted/0%/off\n         *         - 1.0 is 100%/full\n         *         - 0.5 is half volume or 50%\n         *\n         * @return {number}\n         *         The current volume as a percent when getting\n         */\n        volume(percentAsDecimal) {\n            let vol;\n            if (percentAsDecimal !== undefined) {\n                // Force value to between 0 and 1\n                vol = Math.max(0, Math.min(1, parseFloat(percentAsDecimal)));\n                this.cache_.volume = vol;\n                this.techCall_('setVolume', vol);\n                if (vol > 0) {\n                    this.lastVolume_(vol);\n                }\n                return;\n            }\n\n            // Default to 1 when returning current volume.\n            vol = parseFloat(this.techGet_('volume'));\n            return isNaN(vol) ? 1 : vol;\n        }\n\n        /**\n         * Get the current muted state, or turn mute on or off\n         *\n         * @param {boolean} [muted]\n         *        - true to mute\n         *        - false to unmute\n         *\n         * @return {boolean}\n         *         - true if mute is on and getting\n         *         - false if mute is off and getting\n         */\n        muted(muted) {\n            if (muted !== undefined) {\n                this.techCall_('setMuted', muted);\n                return;\n            }\n            return this.techGet_('muted') || false;\n        }\n\n        /**\n         * Get the current defaultMuted state, or turn defaultMuted on or off. defaultMuted\n         * indicates the state of muted on initial playback.\n         *\n         * ```js\n         *   var myPlayer = videojs('some-player-id');\n         *\n         *   myPlayer.src(\"http://www.example.com/path/to/video.mp4\");\n         *\n         *   // get, should be false\n         *   console.log(myPlayer.defaultMuted());\n         *   // set to true\n         *   myPlayer.defaultMuted(true);\n         *   // get should be true\n         *   console.log(myPlayer.defaultMuted());\n         * ```\n         *\n         * @param {boolean} [defaultMuted]\n         *        - true to mute\n         *        - false to unmute\n         *\n         * @return {boolean|Player}\n         *         - true if defaultMuted is on and getting\n         *         - false if defaultMuted is off and getting\n         *         - A reference to the current player when setting\n         */\n        defaultMuted(defaultMuted) {\n            if (defaultMuted !== undefined) {\n                return this.techCall_('setDefaultMuted', defaultMuted);\n            }\n            return this.techGet_('defaultMuted') || false;\n        }\n\n        /**\n         * Get the last volume, or set it\n         *\n         * @param  {number} [percentAsDecimal]\n         *         The new last volume as a decimal percent:\n         *         - 0 is muted/0%/off\n         *         - 1.0 is 100%/full\n         *         - 0.5 is half volume or 50%\n         *\n         * @return {number}\n         *         the current value of lastVolume as a percent when getting\n         *\n         * @private\n         */\n        lastVolume_(percentAsDecimal) {\n            if (percentAsDecimal !== undefined && percentAsDecimal !== 0) {\n                this.cache_.lastVolume = percentAsDecimal;\n                return;\n            }\n            return this.cache_.lastVolume;\n        }\n\n        /**\n         * Check if current tech can support native fullscreen\n         * (e.g. with built in controls like iOS)\n         *\n         * @return {boolean}\n         *         if native fullscreen is supported\n         */\n        supportsFullScreen() {\n            return this.techGet_('supportsFullScreen') || false;\n        }\n\n        /**\n         * Check if the player is in fullscreen mode or tell the player that it\n         * is or is not in fullscreen mode.\n         *\n         * > NOTE: As of the latest HTML5 spec, isFullscreen is no longer an official\n         * property and instead document.fullscreenElement is used. But isFullscreen is\n         * still a valuable property for internal player workings.\n         *\n         * @param  {boolean} [isFS]\n         *         Set the players current fullscreen state\n         *\n         * @return {boolean}\n         *         - true if fullscreen is on and getting\n         *         - false if fullscreen is off and getting\n         */\n        isFullscreen(isFS) {\n            if (isFS !== undefined) {\n                const oldValue = this.isFullscreen_;\n                this.isFullscreen_ = Boolean(isFS);\n\n                // if we changed fullscreen state and we're in prefixed mode, trigger fullscreenchange\n                // this is the only place where we trigger fullscreenchange events for older browsers\n                // fullWindow mode is treated as a prefixed event and will get a fullscreenchange event as well\n                if (this.isFullscreen_ !== oldValue && this.fsApi_.prefixed) {\n                    /**\n                     * @event Player#fullscreenchange\n                     * @type {Event}\n                     */\n                    this.trigger('fullscreenchange');\n                }\n                this.toggleFullscreenClass_();\n                return;\n            }\n            return this.isFullscreen_;\n        }\n\n        /**\n         * Increase the size of the video to full screen\n         * In some browsers, full screen is not supported natively, so it enters\n         * \"full window mode\", where the video fills the browser window.\n         * In browsers and devices that support native full screen, sometimes the\n         * browser's default controls will be shown, and not the Video.js custom skin.\n         * This includes most mobile devices (iOS, Android) and older versions of\n         * Safari.\n         *\n         * @param  {Object} [fullscreenOptions]\n         *         Override the player fullscreen options\n         *\n         * @fires Player#fullscreenchange\n         */\n        requestFullscreen(fullscreenOptions) {\n            if (this.isInPictureInPicture()) {\n                this.exitPictureInPicture();\n            }\n            const self = this;\n            return new Promise((resolve, reject) => {\n                function offHandler() {\n                    self.off('fullscreenerror', errorHandler);\n                    self.off('fullscreenchange', changeHandler);\n                }\n                function changeHandler() {\n                    offHandler();\n                    resolve();\n                }\n                function errorHandler(e, err) {\n                    offHandler();\n                    reject(err);\n                }\n                self.one('fullscreenchange', changeHandler);\n                self.one('fullscreenerror', errorHandler);\n                const promise = self.requestFullscreenHelper_(fullscreenOptions);\n                if (promise) {\n                    promise.then(offHandler, offHandler);\n                    promise.then(resolve, reject);\n                }\n            });\n        }\n        requestFullscreenHelper_(fullscreenOptions) {\n            let fsOptions;\n\n            // Only pass fullscreen options to requestFullscreen in spec-compliant browsers.\n            // Use defaults or player configured option unless passed directly to this method.\n            if (!this.fsApi_.prefixed) {\n                fsOptions = this.options_.fullscreen && this.options_.fullscreen.options || {};\n                if (fullscreenOptions !== undefined) {\n                    fsOptions = fullscreenOptions;\n                }\n            }\n\n            // This method works as follows:\n            // 1. if a fullscreen api is available, use it\n            //   1. call requestFullscreen with potential options\n            //   2. if we got a promise from above, use it to update isFullscreen()\n            // 2. otherwise, if the tech supports fullscreen, call `enterFullScreen` on it.\n            //   This is particularly used for iPhone, older iPads, and non-safari browser on iOS.\n            // 3. otherwise, use \"fullWindow\" mode\n            if (this.fsApi_.requestFullscreen) {\n                const promise = this.el_[this.fsApi_.requestFullscreen](fsOptions);\n\n                // Even on browsers with promise support this may not return a promise\n                if (promise) {\n                    promise.then(() => this.isFullscreen(true), () => this.isFullscreen(false));\n                }\n                return promise;\n            } else if (this.tech_.supportsFullScreen() && !this.options_.preferFullWindow === true) {\n                // we can't take the video.js controls fullscreen but we can go fullscreen\n                // with native controls\n                this.techCall_('enterFullScreen');\n            } else {\n                // fullscreen isn't supported so we'll just stretch the video element to\n                // fill the viewport\n                this.enterFullWindow();\n            }\n        }\n\n        /**\n         * Return the video to its normal size after having been in full screen mode\n         *\n         * @fires Player#fullscreenchange\n         */\n        exitFullscreen() {\n            const self = this;\n            return new Promise((resolve, reject) => {\n                function offHandler() {\n                    self.off('fullscreenerror', errorHandler);\n                    self.off('fullscreenchange', changeHandler);\n                }\n                function changeHandler() {\n                    offHandler();\n                    resolve();\n                }\n                function errorHandler(e, err) {\n                    offHandler();\n                    reject(err);\n                }\n                self.one('fullscreenchange', changeHandler);\n                self.one('fullscreenerror', errorHandler);\n                const promise = self.exitFullscreenHelper_();\n                if (promise) {\n                    promise.then(offHandler, offHandler);\n                    // map the promise to our resolve/reject methods\n                    promise.then(resolve, reject);\n                }\n            });\n        }\n        exitFullscreenHelper_() {\n            if (this.fsApi_.requestFullscreen) {\n                const promise = document[this.fsApi_.exitFullscreen]();\n\n                // Even on browsers with promise support this may not return a promise\n                if (promise) {\n                    // we're splitting the promise here, so, we want to catch the\n                    // potential error so that this chain doesn't have unhandled errors\n                    silencePromise(promise.then(() => this.isFullscreen(false)));\n                }\n                return promise;\n            } else if (this.tech_.supportsFullScreen() && !this.options_.preferFullWindow === true) {\n                this.techCall_('exitFullScreen');\n            } else {\n                this.exitFullWindow();\n            }\n        }\n\n        /**\n         * When fullscreen isn't supported we can stretch the\n         * video container to as wide as the browser will let us.\n         *\n         * @fires Player#enterFullWindow\n         */\n        enterFullWindow() {\n            this.isFullscreen(true);\n            this.isFullWindow = true;\n\n            // Storing original doc overflow value to return to when fullscreen is off\n            this.docOrigOverflow = document.documentElement.style.overflow;\n\n            // Add listener for esc key to exit fullscreen\n            on(document, 'keydown', this.boundFullWindowOnEscKey_);\n\n            // Hide any scroll bars\n            document.documentElement.style.overflow = 'hidden';\n\n            // Apply fullscreen styles\n            addClass(document.body, 'vjs-full-window');\n\n            /**\n             * @event Player#enterFullWindow\n             * @type {Event}\n             */\n            this.trigger('enterFullWindow');\n        }\n\n        /**\n         * Check for call to either exit full window or\n         * full screen on ESC key\n         *\n         * @param {string} event\n         *        Event to check for key press\n         */\n        fullWindowOnEscKey(event) {\n            if (keycode.isEventKey(event, 'Esc')) {\n                if (this.isFullscreen() === true) {\n                    if (!this.isFullWindow) {\n                        this.exitFullscreen();\n                    } else {\n                        this.exitFullWindow();\n                    }\n                }\n            }\n        }\n\n        /**\n         * Exit full window\n         *\n         * @fires Player#exitFullWindow\n         */\n        exitFullWindow() {\n            this.isFullscreen(false);\n            this.isFullWindow = false;\n            off(document, 'keydown', this.boundFullWindowOnEscKey_);\n\n            // Unhide scroll bars.\n            document.documentElement.style.overflow = this.docOrigOverflow;\n\n            // Remove fullscreen styles\n            removeClass(document.body, 'vjs-full-window');\n\n            // Resize the box, controller, and poster to original sizes\n            // this.positionAll();\n            /**\n             * @event Player#exitFullWindow\n             * @type {Event}\n             */\n            this.trigger('exitFullWindow');\n        }\n\n        /**\n         * Disable Picture-in-Picture mode.\n         *\n         * @param {boolean} value\n         *                  - true will disable Picture-in-Picture mode\n         *                  - false will enable Picture-in-Picture mode\n         */\n        disablePictureInPicture(value) {\n            if (value === undefined) {\n                return this.techGet_('disablePictureInPicture');\n            }\n            this.techCall_('setDisablePictureInPicture', value);\n            this.options_.disablePictureInPicture = value;\n            this.trigger('disablepictureinpicturechanged');\n        }\n\n        /**\n         * Check if the player is in Picture-in-Picture mode or tell the player that it\n         * is or is not in Picture-in-Picture mode.\n         *\n         * @param  {boolean} [isPiP]\n         *         Set the players current Picture-in-Picture state\n         *\n         * @return {boolean}\n         *         - true if Picture-in-Picture is on and getting\n         *         - false if Picture-in-Picture is off and getting\n         */\n        isInPictureInPicture(isPiP) {\n            if (isPiP !== undefined) {\n                this.isInPictureInPicture_ = !!isPiP;\n                this.togglePictureInPictureClass_();\n                return;\n            }\n            return !!this.isInPictureInPicture_;\n        }\n\n        /**\n         * Create a floating video window always on top of other windows so that users may\n         * continue consuming media while they interact with other content sites, or\n         * applications on their device.\n         *\n         * This can use document picture-in-picture or element picture in picture\n         *\n         * Set `enableDocumentPictureInPicture` to `true` to use docPiP on a supported browser\n         * Else set `disablePictureInPicture` to `false` to disable elPiP on a supported browser\n         *\n         *\n         * @see [Spec]{@link https://w3c.github.io/picture-in-picture/}\n         * @see [Spec]{@link https://wicg.github.io/document-picture-in-picture/}\n         *\n         * @fires Player#enterpictureinpicture\n         *\n         * @return {Promise}\n         *         A promise with a Picture-in-Picture window.\n         */\n        requestPictureInPicture() {\n            if (this.options_.enableDocumentPictureInPicture && window.documentPictureInPicture) {\n                const pipContainer = document.createElement(this.el().tagName);\n                pipContainer.classList = this.el().classList;\n                pipContainer.classList.add('vjs-pip-container');\n                if (this.posterImage) {\n                    pipContainer.appendChild(this.posterImage.el().cloneNode(true));\n                }\n                if (this.titleBar) {\n                    pipContainer.appendChild(this.titleBar.el().cloneNode(true));\n                }\n                pipContainer.appendChild(createEl('p', {\n                    className: 'vjs-pip-text'\n                }, {}, this.localize('Playing in picture-in-picture')));\n                return window.documentPictureInPicture.requestWindow({\n                    // The aspect ratio won't be correct, Chrome bug https://crbug.com/1407629\n                    initialAspectRatio: this.videoWidth() / this.videoHeight(),\n                    copyStyleSheets: true\n                }).then(pipWindow => {\n                    this.el_.parentNode.insertBefore(pipContainer, this.el_);\n                    pipWindow.document.body.append(this.el_);\n                    pipWindow.document.body.classList.add('vjs-pip-window');\n                    this.player_.isInPictureInPicture(true);\n                    this.player_.trigger('enterpictureinpicture');\n\n                    // Listen for the PiP closing event to move the video back.\n                    pipWindow.addEventListener('unload', event => {\n                        const pipVideo = event.target.querySelector('.video-js');\n                        pipContainer.replaceWith(pipVideo);\n                        this.player_.isInPictureInPicture(false);\n                        this.player_.trigger('leavepictureinpicture');\n                    });\n                    return pipWindow;\n                });\n            }\n            if ('pictureInPictureEnabled' in document && this.disablePictureInPicture() === false) {\n                /**\n                 * This event fires when the player enters picture in picture mode\n                 *\n                 * @event Player#enterpictureinpicture\n                 * @type {Event}\n                 */\n                return this.techGet_('requestPictureInPicture');\n            }\n            return Promise.reject('No PiP mode is available');\n        }\n\n        /**\n         * Exit Picture-in-Picture mode.\n         *\n         * @see [Spec]{@link https://wicg.github.io/picture-in-picture}\n         *\n         * @fires Player#leavepictureinpicture\n         *\n         * @return {Promise}\n         *         A promise.\n         */\n        exitPictureInPicture() {\n            if (window.documentPictureInPicture && window.documentPictureInPicture.window) {\n                // With documentPictureInPicture, Player#leavepictureinpicture is fired in the unload handler\n                window.documentPictureInPicture.window.close();\n                return Promise.resolve();\n            }\n            if ('pictureInPictureEnabled' in document) {\n                /**\n                 * This event fires when the player leaves picture in picture mode\n                 *\n                 * @event Player#leavepictureinpicture\n                 * @type {Event}\n                 */\n                return document.exitPictureInPicture();\n            }\n        }\n\n        /**\n         * Called when this Player has focus and a key gets pressed down, or when\n         * any Component of this player receives a key press that it doesn't handle.\n         * This allows player-wide hotkeys (either as defined below, or optionally\n         * by an external function).\n         *\n         * @param {Event} event\n         *        The `keydown` event that caused this function to be called.\n         *\n         * @listens keydown\n         */\n        handleKeyDown(event) {\n            const {\n                userActions\n            } = this.options_;\n\n            // Bail out if hotkeys are not configured.\n            if (!userActions || !userActions.hotkeys) {\n                return;\n            }\n\n            // Function that determines whether or not to exclude an element from\n            // hotkeys handling.\n            const excludeElement = el => {\n                const tagName = el.tagName.toLowerCase();\n\n                // The first and easiest test is for `contenteditable` elements.\n                if (el.isContentEditable) {\n                    return true;\n                }\n\n                // Inputs matching these types will still trigger hotkey handling as\n                // they are not text inputs.\n                const allowedInputTypes = ['button', 'checkbox', 'hidden', 'radio', 'reset', 'submit'];\n                if (tagName === 'input') {\n                    return allowedInputTypes.indexOf(el.type) === -1;\n                }\n\n                // The final test is by tag name. These tags will be excluded entirely.\n                const excludedTags = ['textarea'];\n                return excludedTags.indexOf(tagName) !== -1;\n            };\n\n            // Bail out if the user is focused on an interactive form element.\n            if (excludeElement(this.el_.ownerDocument.activeElement)) {\n                return;\n            }\n            if (typeof userActions.hotkeys === 'function') {\n                userActions.hotkeys.call(this, event);\n            } else {\n                this.handleHotkeys(event);\n            }\n        }\n\n        /**\n         * Called when this Player receives a hotkey keydown event.\n         * Supported player-wide hotkeys are:\n         *\n         *   f          - toggle fullscreen\n         *   m          - toggle mute\n         *   k or Space - toggle play/pause\n         *\n         * @param {Event} event\n         *        The `keydown` event that caused this function to be called.\n         */\n        handleHotkeys(event) {\n            const hotkeys = this.options_.userActions ? this.options_.userActions.hotkeys : {};\n\n            // set fullscreenKey, muteKey, playPauseKey from `hotkeys`, use defaults if not set\n            const {\n                fullscreenKey = keydownEvent => keycode.isEventKey(keydownEvent, 'f'),\n                muteKey = keydownEvent => keycode.isEventKey(keydownEvent, 'm'),\n                playPauseKey = keydownEvent => keycode.isEventKey(keydownEvent, 'k') || keycode.isEventKey(keydownEvent, 'Space')\n            } = hotkeys;\n            if (fullscreenKey.call(this, event)) {\n                event.preventDefault();\n                event.stopPropagation();\n                const FSToggle = Component$1.getComponent('FullscreenToggle');\n                if (document[this.fsApi_.fullscreenEnabled] !== false) {\n                    FSToggle.prototype.handleClick.call(this, event);\n                }\n            } else if (muteKey.call(this, event)) {\n                event.preventDefault();\n                event.stopPropagation();\n                const MuteToggle = Component$1.getComponent('MuteToggle');\n                MuteToggle.prototype.handleClick.call(this, event);\n            } else if (playPauseKey.call(this, event)) {\n                event.preventDefault();\n                event.stopPropagation();\n                const PlayToggle = Component$1.getComponent('PlayToggle');\n                PlayToggle.prototype.handleClick.call(this, event);\n            }\n        }\n\n        /**\n         * Check whether the player can play a given mimetype\n         *\n         * @see https://www.w3.org/TR/2011/WD-html5-20110113/video.html#dom-navigator-canplaytype\n         *\n         * @param {string} type\n         *        The mimetype to check\n         *\n         * @return {string}\n         *         'probably', 'maybe', or '' (empty string)\n         */\n        canPlayType(type) {\n            let can;\n\n            // Loop through each playback technology in the options order\n            for (let i = 0, j = this.options_.techOrder; i < j.length; i++) {\n                const techName = j[i];\n                let tech = Tech.getTech(techName);\n\n                // Support old behavior of techs being registered as components.\n                // Remove once that deprecated behavior is removed.\n                if (!tech) {\n                    tech = Component$1.getComponent(techName);\n                }\n\n                // Check if the current tech is defined before continuing\n                if (!tech) {\n                    log$1.error(`The \"${techName}\" tech is undefined. Skipped browser support check for that tech.`);\n                    continue;\n                }\n\n                // Check if the browser supports this technology\n                if (tech.isSupported()) {\n                    can = tech.canPlayType(type);\n                    if (can) {\n                        return can;\n                    }\n                }\n            }\n            return '';\n        }\n\n        /**\n         * Select source based on tech-order or source-order\n         * Uses source-order selection if `options.sourceOrder` is truthy. Otherwise,\n         * defaults to tech-order selection\n         *\n         * @param {Array} sources\n         *        The sources for a media asset\n         *\n         * @return {Object|boolean}\n         *         Object of source and tech order or false\n         */\n        selectSource(sources) {\n            // Get only the techs specified in `techOrder` that exist and are supported by the\n            // current platform\n            const techs = this.options_.techOrder.map(techName => {\n                return [techName, Tech.getTech(techName)];\n            }).filter(([techName, tech]) => {\n                // Check if the current tech is defined before continuing\n                if (tech) {\n                    // Check if the browser supports this technology\n                    return tech.isSupported();\n                }\n                log$1.error(`The \"${techName}\" tech is undefined. Skipped browser support check for that tech.`);\n                return false;\n            });\n\n            // Iterate over each `innerArray` element once per `outerArray` element and execute\n            // `tester` with both. If `tester` returns a non-falsy value, exit early and return\n            // that value.\n            const findFirstPassingTechSourcePair = function (outerArray, innerArray, tester) {\n                let found;\n                outerArray.some(outerChoice => {\n                    return innerArray.some(innerChoice => {\n                        found = tester(outerChoice, innerChoice);\n                        if (found) {\n                            return true;\n                        }\n                    });\n                });\n                return found;\n            };\n            let foundSourceAndTech;\n            const flip = fn => (a, b) => fn(b, a);\n            const finder = ([techName, tech], source) => {\n                if (tech.canPlaySource(source, this.options_[techName.toLowerCase()])) {\n                    return {\n                        source,\n                        tech: techName\n                    };\n                }\n            };\n\n            // Depending on the truthiness of `options.sourceOrder`, we swap the order of techs and sources\n            // to select from them based on their priority.\n            if (this.options_.sourceOrder) {\n                // Source-first ordering\n                foundSourceAndTech = findFirstPassingTechSourcePair(sources, techs, flip(finder));\n            } else {\n                // Tech-first ordering\n                foundSourceAndTech = findFirstPassingTechSourcePair(techs, sources, finder);\n            }\n            return foundSourceAndTech || false;\n        }\n\n        /**\n         * Executes source setting and getting logic\n         *\n         * @param {Tech~SourceObject|Tech~SourceObject[]|string} [source]\n         *        A SourceObject, an array of SourceObjects, or a string referencing\n         *        a URL to a media source. It is _highly recommended_ that an object\n         *        or array of objects is used here, so that source selection\n         *        algorithms can take the `type` into account.\n         *\n         *        If not provided, this method acts as a getter.\n         * @param {boolean} isRetry\n         *        Indicates whether this is being called internally as a result of a retry\n         *\n         * @return {string|undefined}\n         *         If the `source` argument is missing, returns the current source\n         *         URL. Otherwise, returns nothing/undefined.\n         */\n        handleSrc_(source, isRetry) {\n            // getter usage\n            if (typeof source === 'undefined') {\n                return this.cache_.src || '';\n            }\n\n            // Reset retry behavior for new source\n            if (this.resetRetryOnError_) {\n                this.resetRetryOnError_();\n            }\n\n            // filter out invalid sources and turn our source into\n            // an array of source objects\n            const sources = filterSource(source);\n\n            // if a source was passed in then it is invalid because\n            // it was filtered to a zero length Array. So we have to\n            // show an error\n            if (!sources.length) {\n                this.setTimeout(function () {\n                    this.error({\n                        code: 4,\n                        message: this.options_.notSupportedMessage\n                    });\n                }, 0);\n                return;\n            }\n\n            // initial sources\n            this.changingSrc_ = true;\n\n            // Only update the cached source list if we are not retrying a new source after error,\n            // since in that case we want to include the failed source(s) in the cache\n            if (!isRetry) {\n                this.cache_.sources = sources;\n            }\n            this.updateSourceCaches_(sources[0]);\n\n            // middlewareSource is the source after it has been changed by middleware\n            setSource(this, sources[0], (middlewareSource, mws) => {\n                this.middleware_ = mws;\n\n                // since sourceSet is async we have to update the cache again after we select a source since\n                // the source that is selected could be out of order from the cache update above this callback.\n                if (!isRetry) {\n                    this.cache_.sources = sources;\n                }\n                this.updateSourceCaches_(middlewareSource);\n                const err = this.src_(middlewareSource);\n                if (err) {\n                    if (sources.length > 1) {\n                        return this.handleSrc_(sources.slice(1));\n                    }\n                    this.changingSrc_ = false;\n\n                    // We need to wrap this in a timeout to give folks a chance to add error event handlers\n                    this.setTimeout(function () {\n                        this.error({\n                            code: 4,\n                            message: this.options_.notSupportedMessage\n                        });\n                    }, 0);\n\n                    // we could not find an appropriate tech, but let's still notify the delegate that this is it\n                    // this needs a better comment about why this is needed\n                    this.triggerReady();\n                    return;\n                }\n                setTech(mws, this.tech_);\n            });\n\n            // Try another available source if this one fails before playback.\n            if (sources.length > 1) {\n                const retry = () => {\n                    // Remove the error modal\n                    this.error(null);\n                    this.handleSrc_(sources.slice(1), true);\n                };\n                const stopListeningForErrors = () => {\n                    this.off('error', retry);\n                };\n                this.one('error', retry);\n                this.one('playing', stopListeningForErrors);\n                this.resetRetryOnError_ = () => {\n                    this.off('error', retry);\n                    this.off('playing', stopListeningForErrors);\n                };\n            }\n        }\n\n        /**\n         * Get or set the video source.\n         *\n         * @param {Tech~SourceObject|Tech~SourceObject[]|string} [source]\n         *        A SourceObject, an array of SourceObjects, or a string referencing\n         *        a URL to a media source. It is _highly recommended_ that an object\n         *        or array of objects is used here, so that source selection\n         *        algorithms can take the `type` into account.\n         *\n         *        If not provided, this method acts as a getter.\n         *\n         * @return {string|undefined}\n         *         If the `source` argument is missing, returns the current source\n         *         URL. Otherwise, returns nothing/undefined.\n         */\n        src(source) {\n            return this.handleSrc_(source, false);\n        }\n\n        /**\n         * Set the source object on the tech, returns a boolean that indicates whether\n         * there is a tech that can play the source or not\n         *\n         * @param {Tech~SourceObject} source\n         *        The source object to set on the Tech\n         *\n         * @return {boolean}\n         *         - True if there is no Tech to playback this source\n         *         - False otherwise\n         *\n         * @private\n         */\n        src_(source) {\n            const sourceTech = this.selectSource([source]);\n            if (!sourceTech) {\n                return true;\n            }\n            if (!titleCaseEquals(sourceTech.tech, this.techName_)) {\n                this.changingSrc_ = true;\n                // load this technology with the chosen source\n                this.loadTech_(sourceTech.tech, sourceTech.source);\n                this.tech_.ready(() => {\n                    this.changingSrc_ = false;\n                });\n                return false;\n            }\n\n            // wait until the tech is ready to set the source\n            // and set it synchronously if possible (#2326)\n            this.ready(function () {\n                // The setSource tech method was added with source handlers\n                // so older techs won't support it\n                // We need to check the direct prototype for the case where subclasses\n                // of the tech do not support source handlers\n                if (this.tech_.constructor.prototype.hasOwnProperty('setSource')) {\n                    this.techCall_('setSource', source);\n                } else {\n                    this.techCall_('src', source.src);\n                }\n                this.changingSrc_ = false;\n            }, true);\n            return false;\n        }\n\n        /**\n         * Begin loading the src data.\n         */\n        load() {\n            this.techCall_('load');\n        }\n\n        /**\n         * Reset the player. Loads the first tech in the techOrder,\n         * removes all the text tracks in the existing `tech`,\n         * and calls `reset` on the `tech`.\n         */\n        reset() {\n            if (this.paused()) {\n                this.doReset_();\n            } else {\n                const playPromise = this.play();\n                silencePromise(playPromise.then(() => this.doReset_()));\n            }\n        }\n        doReset_() {\n            if (this.tech_) {\n                this.tech_.clearTracks('text');\n            }\n            this.resetCache_();\n            this.poster('');\n            this.loadTech_(this.options_.techOrder[0], null);\n            this.techCall_('reset');\n            this.resetControlBarUI_();\n            if (isEvented(this)) {\n                this.trigger('playerreset');\n            }\n        }\n\n        /**\n         * Reset Control Bar's UI by calling sub-methods that reset\n         * all of Control Bar's components\n         */\n        resetControlBarUI_() {\n            this.resetProgressBar_();\n            this.resetPlaybackRate_();\n            this.resetVolumeBar_();\n        }\n\n        /**\n         * Reset tech's progress so progress bar is reset in the UI\n         */\n        resetProgressBar_() {\n            this.currentTime(0);\n            const {\n                currentTimeDisplay,\n                durationDisplay,\n                progressControl,\n                remainingTimeDisplay\n            } = this.controlBar || {};\n            const {\n                seekBar\n            } = progressControl || {};\n            if (currentTimeDisplay) {\n                currentTimeDisplay.updateContent();\n            }\n            if (durationDisplay) {\n                durationDisplay.updateContent();\n            }\n            if (remainingTimeDisplay) {\n                remainingTimeDisplay.updateContent();\n            }\n            if (seekBar) {\n                seekBar.update();\n                if (seekBar.loadProgressBar) {\n                    seekBar.loadProgressBar.update();\n                }\n            }\n        }\n\n        /**\n         * Reset Playback ratio\n         */\n        resetPlaybackRate_() {\n            this.playbackRate(this.defaultPlaybackRate());\n            this.handleTechRateChange_();\n        }\n\n        /**\n         * Reset Volume bar\n         */\n        resetVolumeBar_() {\n            this.volume(1.0);\n            this.trigger('volumechange');\n        }\n\n        /**\n         * Returns all of the current source objects.\n         *\n         * @return {Tech~SourceObject[]}\n         *         The current source objects\n         */\n        currentSources() {\n            const source = this.currentSource();\n            const sources = [];\n\n            // assume `{}` or `{ src }`\n            if (Object.keys(source).length !== 0) {\n                sources.push(source);\n            }\n            return this.cache_.sources || sources;\n        }\n\n        /**\n         * Returns the current source object.\n         *\n         * @return {Tech~SourceObject}\n         *         The current source object\n         */\n        currentSource() {\n            return this.cache_.source || {};\n        }\n\n        /**\n         * Returns the fully qualified URL of the current source value e.g. http://mysite.com/video.mp4\n         * Can be used in conjunction with `currentType` to assist in rebuilding the current source object.\n         *\n         * @return {string}\n         *         The current source\n         */\n        currentSrc() {\n            return this.currentSource() && this.currentSource().src || '';\n        }\n\n        /**\n         * Get the current source type e.g. video/mp4\n         * This can allow you rebuild the current source object so that you could load the same\n         * source and tech later\n         *\n         * @return {string}\n         *         The source MIME type\n         */\n        currentType() {\n            return this.currentSource() && this.currentSource().type || '';\n        }\n\n        /**\n         * Get or set the preload attribute\n         *\n         * @param {boolean} [value]\n         *        - true means that we should preload\n         *        - false means that we should not preload\n         *\n         * @return {string}\n         *         The preload attribute value when getting\n         */\n        preload(value) {\n            if (value !== undefined) {\n                this.techCall_('setPreload', value);\n                this.options_.preload = value;\n                return;\n            }\n            return this.techGet_('preload');\n        }\n\n        /**\n         * Get or set the autoplay option. When this is a boolean it will\n         * modify the attribute on the tech. When this is a string the attribute on\n         * the tech will be removed and `Player` will handle autoplay on loadstarts.\n         *\n         * @param {boolean|string} [value]\n         *        - true: autoplay using the browser behavior\n         *        - false: do not autoplay\n         *        - 'play': call play() on every loadstart\n         *        - 'muted': call muted() then play() on every loadstart\n         *        - 'any': call play() on every loadstart. if that fails call muted() then play().\n         *        - *: values other than those listed here will be set `autoplay` to true\n         *\n         * @return {boolean|string}\n         *         The current value of autoplay when getting\n         */\n        autoplay(value) {\n            // getter usage\n            if (value === undefined) {\n                return this.options_.autoplay || false;\n            }\n            let techAutoplay;\n\n            // if the value is a valid string set it to that, or normalize `true` to 'play', if need be\n            if (typeof value === 'string' && /(any|play|muted)/.test(value) || value === true && this.options_.normalizeAutoplay) {\n                this.options_.autoplay = value;\n                this.manualAutoplay_(typeof value === 'string' ? value : 'play');\n                techAutoplay = false;\n\n                // any falsy value sets autoplay to false in the browser,\n                // lets do the same\n            } else if (!value) {\n                this.options_.autoplay = false;\n\n                // any other value (ie truthy) sets autoplay to true\n            } else {\n                this.options_.autoplay = true;\n            }\n            techAutoplay = typeof techAutoplay === 'undefined' ? this.options_.autoplay : techAutoplay;\n\n            // if we don't have a tech then we do not queue up\n            // a setAutoplay call on tech ready. We do this because the\n            // autoplay option will be passed in the constructor and we\n            // do not need to set it twice\n            if (this.tech_) {\n                this.techCall_('setAutoplay', techAutoplay);\n            }\n        }\n\n        /**\n         * Set or unset the playsinline attribute.\n         * Playsinline tells the browser that non-fullscreen playback is preferred.\n         *\n         * @param {boolean} [value]\n         *        - true means that we should try to play inline by default\n         *        - false means that we should use the browser's default playback mode,\n         *          which in most cases is inline. iOS Safari is a notable exception\n         *          and plays fullscreen by default.\n         *\n         * @return {string|Player}\n         *         - the current value of playsinline\n         *         - the player when setting\n         *\n         * @see [Spec]{@link https://html.spec.whatwg.org/#attr-video-playsinline}\n         */\n        playsinline(value) {\n            if (value !== undefined) {\n                this.techCall_('setPlaysinline', value);\n                this.options_.playsinline = value;\n                return this;\n            }\n            return this.techGet_('playsinline');\n        }\n\n        /**\n         * Get or set the loop attribute on the video element.\n         *\n         * @param {boolean} [value]\n         *        - true means that we should loop the video\n         *        - false means that we should not loop the video\n         *\n         * @return {boolean}\n         *         The current value of loop when getting\n         */\n        loop(value) {\n            if (value !== undefined) {\n                this.techCall_('setLoop', value);\n                this.options_.loop = value;\n                return;\n            }\n            return this.techGet_('loop');\n        }\n\n        /**\n         * Get or set the poster image source url\n         *\n         * @fires Player#posterchange\n         *\n         * @param {string} [src]\n         *        Poster image source URL\n         *\n         * @return {string}\n         *         The current value of poster when getting\n         */\n        poster(src) {\n            if (src === undefined) {\n                return this.poster_;\n            }\n\n            // The correct way to remove a poster is to set as an empty string\n            // other falsey values will throw errors\n            if (!src) {\n                src = '';\n            }\n            if (src === this.poster_) {\n                return;\n            }\n\n            // update the internal poster variable\n            this.poster_ = src;\n\n            // update the tech's poster\n            this.techCall_('setPoster', src);\n            this.isPosterFromTech_ = false;\n\n            // alert components that the poster has been set\n            /**\n             * This event fires when the poster image is changed on the player.\n             *\n             * @event Player#posterchange\n             * @type {Event}\n             */\n            this.trigger('posterchange');\n        }\n\n        /**\n         * Some techs (e.g. YouTube) can provide a poster source in an\n         * asynchronous way. We want the poster component to use this\n         * poster source so that it covers up the tech's controls.\n         * (YouTube's play button). However we only want to use this\n         * source if the player user hasn't set a poster through\n         * the normal APIs.\n         *\n         * @fires Player#posterchange\n         * @listens Tech#posterchange\n         * @private\n         */\n        handleTechPosterChange_() {\n            if ((!this.poster_ || this.options_.techCanOverridePoster) && this.tech_ && this.tech_.poster) {\n                const newPoster = this.tech_.poster() || '';\n                if (newPoster !== this.poster_) {\n                    this.poster_ = newPoster;\n                    this.isPosterFromTech_ = true;\n\n                    // Let components know the poster has changed\n                    this.trigger('posterchange');\n                }\n            }\n        }\n\n        /**\n         * Get or set whether or not the controls are showing.\n         *\n         * @fires Player#controlsenabled\n         *\n         * @param {boolean} [bool]\n         *        - true to turn controls on\n         *        - false to turn controls off\n         *\n         * @return {boolean}\n         *         The current value of controls when getting\n         */\n        controls(bool) {\n            if (bool === undefined) {\n                return !!this.controls_;\n            }\n            bool = !!bool;\n\n            // Don't trigger a change event unless it actually changed\n            if (this.controls_ === bool) {\n                return;\n            }\n            this.controls_ = bool;\n            if (this.usingNativeControls()) {\n                this.techCall_('setControls', bool);\n            }\n            if (this.controls_) {\n                this.removeClass('vjs-controls-disabled');\n                this.addClass('vjs-controls-enabled');\n                /**\n                 * @event Player#controlsenabled\n                 * @type {Event}\n                 */\n                this.trigger('controlsenabled');\n                if (!this.usingNativeControls()) {\n                    this.addTechControlsListeners_();\n                }\n            } else {\n                this.removeClass('vjs-controls-enabled');\n                this.addClass('vjs-controls-disabled');\n                /**\n                 * @event Player#controlsdisabled\n                 * @type {Event}\n                 */\n                this.trigger('controlsdisabled');\n                if (!this.usingNativeControls()) {\n                    this.removeTechControlsListeners_();\n                }\n            }\n        }\n\n        /**\n         * Toggle native controls on/off. Native controls are the controls built into\n         * devices (e.g. default iPhone controls) or other techs\n         * (e.g. Vimeo Controls)\n         * **This should only be set by the current tech, because only the tech knows\n         * if it can support native controls**\n         *\n         * @fires Player#usingnativecontrols\n         * @fires Player#usingcustomcontrols\n         *\n         * @param {boolean} [bool]\n         *        - true to turn native controls on\n         *        - false to turn native controls off\n         *\n         * @return {boolean}\n         *         The current value of native controls when getting\n         */\n        usingNativeControls(bool) {\n            if (bool === undefined) {\n                return !!this.usingNativeControls_;\n            }\n            bool = !!bool;\n\n            // Don't trigger a change event unless it actually changed\n            if (this.usingNativeControls_ === bool) {\n                return;\n            }\n            this.usingNativeControls_ = bool;\n            if (this.usingNativeControls_) {\n                this.addClass('vjs-using-native-controls');\n\n                /**\n                 * player is using the native device controls\n                 *\n                 * @event Player#usingnativecontrols\n                 * @type {Event}\n                 */\n                this.trigger('usingnativecontrols');\n            } else {\n                this.removeClass('vjs-using-native-controls');\n\n                /**\n                 * player is using the custom HTML controls\n                 *\n                 * @event Player#usingcustomcontrols\n                 * @type {Event}\n                 */\n                this.trigger('usingcustomcontrols');\n            }\n        }\n\n        /**\n         * Set or get the current MediaError\n         *\n         * @fires Player#error\n         *\n         * @param  {MediaError|string|number} [err]\n         *         A MediaError or a string/number to be turned\n         *         into a MediaError\n         *\n         * @return {MediaError|null}\n         *         The current MediaError when getting (or null)\n         */\n        error(err) {\n            if (err === undefined) {\n                return this.error_ || null;\n            }\n\n            // allow hooks to modify error object\n            hooks('beforeerror').forEach(hookFunction => {\n                const newErr = hookFunction(this, err);\n                if (!(isObject$1(newErr) && !Array.isArray(newErr) || typeof newErr === 'string' || typeof newErr === 'number' || newErr === null)) {\n                    this.log.error('please return a value that MediaError expects in beforeerror hooks');\n                    return;\n                }\n                err = newErr;\n            });\n\n            // Suppress the first error message for no compatible source until\n            // user interaction\n            if (this.options_.suppressNotSupportedError && err && err.code === 4) {\n                const triggerSuppressedError = function () {\n                    this.error(err);\n                };\n                this.options_.suppressNotSupportedError = false;\n                this.any(['click', 'touchstart'], triggerSuppressedError);\n                this.one('loadstart', function () {\n                    this.off(['click', 'touchstart'], triggerSuppressedError);\n                });\n                return;\n            }\n\n            // restoring to default\n            if (err === null) {\n                this.error_ = err;\n                this.removeClass('vjs-error');\n                if (this.errorDisplay) {\n                    this.errorDisplay.close();\n                }\n                return;\n            }\n            this.error_ = new MediaError(err);\n\n            // add the vjs-error classname to the player\n            this.addClass('vjs-error');\n\n            // log the name of the error type and any message\n            // IE11 logs \"[object object]\" and required you to expand message to see error object\n            log$1.error(`(CODE:${this.error_.code} ${MediaError.errorTypes[this.error_.code]})`, this.error_.message, this.error_);\n\n            /**\n             * @event Player#error\n             * @type {Event}\n             */\n            this.trigger('error');\n\n            // notify hooks of the per player error\n            hooks('error').forEach(hookFunction => hookFunction(this, this.error_));\n            return;\n        }\n\n        /**\n         * Report user activity\n         *\n         * @param {Object} event\n         *        Event object\n         */\n        reportUserActivity(event) {\n            this.userActivity_ = true;\n        }\n\n        /**\n         * Get/set if user is active\n         *\n         * @fires Player#useractive\n         * @fires Player#userinactive\n         *\n         * @param {boolean} [bool]\n         *        - true if the user is active\n         *        - false if the user is inactive\n         *\n         * @return {boolean}\n         *         The current value of userActive when getting\n         */\n        userActive(bool) {\n            if (bool === undefined) {\n                return this.userActive_;\n            }\n            bool = !!bool;\n            if (bool === this.userActive_) {\n                return;\n            }\n            this.userActive_ = bool;\n            if (this.userActive_) {\n                this.userActivity_ = true;\n                this.removeClass('vjs-user-inactive');\n                this.addClass('vjs-user-active');\n                /**\n                 * @event Player#useractive\n                 * @type {Event}\n                 */\n                this.trigger('useractive');\n                return;\n            }\n\n            // Chrome/Safari/IE have bugs where when you change the cursor it can\n            // trigger a mousemove event. This causes an issue when you're hiding\n            // the cursor when the user is inactive, and a mousemove signals user\n            // activity. Making it impossible to go into inactive mode. Specifically\n            // this happens in fullscreen when we really need to hide the cursor.\n            //\n            // When this gets resolved in ALL browsers it can be removed\n            // https://code.google.com/p/chromium/issues/detail?id=103041\n            if (this.tech_) {\n                this.tech_.one('mousemove', function (e) {\n                    e.stopPropagation();\n                    e.preventDefault();\n                });\n            }\n            this.userActivity_ = false;\n            this.removeClass('vjs-user-active');\n            this.addClass('vjs-user-inactive');\n            /**\n             * @event Player#userinactive\n             * @type {Event}\n             */\n            this.trigger('userinactive');\n        }\n\n        /**\n         * Listen for user activity based on timeout value\n         *\n         * @private\n         */\n        listenForUserActivity_() {\n            let mouseInProgress;\n            let lastMoveX;\n            let lastMoveY;\n            const handleActivity = bind_(this, this.reportUserActivity);\n            const handleMouseMove = function (e) {\n                // #1068 - Prevent mousemove spamming\n                // Chrome Bug: https://code.google.com/p/chromium/issues/detail?id=366970\n                if (e.screenX !== lastMoveX || e.screenY !== lastMoveY) {\n                    lastMoveX = e.screenX;\n                    lastMoveY = e.screenY;\n                    handleActivity();\n                }\n            };\n            const handleMouseDown = function () {\n                handleActivity();\n                // For as long as the they are touching the device or have their mouse down,\n                // we consider them active even if they're not moving their finger or mouse.\n                // So we want to continue to update that they are active\n                this.clearInterval(mouseInProgress);\n                // Setting userActivity=true now and setting the interval to the same time\n                // as the activityCheck interval (250) should ensure we never miss the\n                // next activityCheck\n                mouseInProgress = this.setInterval(handleActivity, 250);\n            };\n            const handleMouseUpAndMouseLeave = function (event) {\n                handleActivity();\n                // Stop the interval that maintains activity if the mouse/touch is down\n                this.clearInterval(mouseInProgress);\n            };\n\n            // Any mouse movement will be considered user activity\n            this.on('mousedown', handleMouseDown);\n            this.on('mousemove', handleMouseMove);\n            this.on('mouseup', handleMouseUpAndMouseLeave);\n            this.on('mouseleave', handleMouseUpAndMouseLeave);\n            const controlBar = this.getChild('controlBar');\n\n            // Fixes bug on Android & iOS where when tapping progressBar (when control bar is displayed)\n            // controlBar would no longer be hidden by default timeout.\n            if (controlBar && !IS_IOS && !IS_ANDROID) {\n                controlBar.on('mouseenter', function (event) {\n                    if (this.player().options_.inactivityTimeout !== 0) {\n                        this.player().cache_.inactivityTimeout = this.player().options_.inactivityTimeout;\n                    }\n                    this.player().options_.inactivityTimeout = 0;\n                });\n                controlBar.on('mouseleave', function (event) {\n                    this.player().options_.inactivityTimeout = this.player().cache_.inactivityTimeout;\n                });\n            }\n\n            // Listen for keyboard navigation\n            // Shouldn't need to use inProgress interval because of key repeat\n            this.on('keydown', handleActivity);\n            this.on('keyup', handleActivity);\n\n            // Run an interval every 250 milliseconds instead of stuffing everything into\n            // the mousemove/touchmove function itself, to prevent performance degradation.\n            // `this.reportUserActivity` simply sets this.userActivity_ to true, which\n            // then gets picked up by this loop\n            // http://ejohn.org/blog/learning-from-twitter/\n            let inactivityTimeout;\n            this.setInterval(function () {\n                // Check to see if mouse/touch activity has happened\n                if (!this.userActivity_) {\n                    return;\n                }\n\n                // Reset the activity tracker\n                this.userActivity_ = false;\n\n                // If the user state was inactive, set the state to active\n                this.userActive(true);\n\n                // Clear any existing inactivity timeout to start the timer over\n                this.clearTimeout(inactivityTimeout);\n                const timeout = this.options_.inactivityTimeout;\n                if (timeout <= 0) {\n                    return;\n                }\n\n                // In <timeout> milliseconds, if no more activity has occurred the\n                // user will be considered inactive\n                inactivityTimeout = this.setTimeout(function () {\n                    // Protect against the case where the inactivityTimeout can trigger just\n                    // before the next user activity is picked up by the activity check loop\n                    // causing a flicker\n                    if (!this.userActivity_) {\n                        this.userActive(false);\n                    }\n                }, timeout);\n            }, 250);\n        }\n\n        /**\n         * Gets or sets the current playback rate. A playback rate of\n         * 1.0 represents normal speed and 0.5 would indicate half-speed\n         * playback, for instance.\n         *\n         * @see https://html.spec.whatwg.org/multipage/embedded-content.html#dom-media-playbackrate\n         *\n         * @param {number} [rate]\n         *       New playback rate to set.\n         *\n         * @return {number}\n         *         The current playback rate when getting or 1.0\n         */\n        playbackRate(rate) {\n            if (rate !== undefined) {\n                // NOTE: this.cache_.lastPlaybackRate is set from the tech handler\n                // that is registered above\n                this.techCall_('setPlaybackRate', rate);\n                return;\n            }\n            if (this.tech_ && this.tech_.featuresPlaybackRate) {\n                return this.cache_.lastPlaybackRate || this.techGet_('playbackRate');\n            }\n            return 1.0;\n        }\n\n        /**\n         * Gets or sets the current default playback rate. A default playback rate of\n         * 1.0 represents normal speed and 0.5 would indicate half-speed playback, for instance.\n         * defaultPlaybackRate will only represent what the initial playbackRate of a video was, not\n         * not the current playbackRate.\n         *\n         * @see https://html.spec.whatwg.org/multipage/embedded-content.html#dom-media-defaultplaybackrate\n         *\n         * @param {number} [rate]\n         *       New default playback rate to set.\n         *\n         * @return {number|Player}\n         *         - The default playback rate when getting or 1.0\n         *         - the player when setting\n         */\n        defaultPlaybackRate(rate) {\n            if (rate !== undefined) {\n                return this.techCall_('setDefaultPlaybackRate', rate);\n            }\n            if (this.tech_ && this.tech_.featuresPlaybackRate) {\n                return this.techGet_('defaultPlaybackRate');\n            }\n            return 1.0;\n        }\n\n        /**\n         * Gets or sets the audio flag\n         *\n         * @param {boolean} bool\n         *        - true signals that this is an audio player\n         *        - false signals that this is not an audio player\n         *\n         * @return {boolean}\n         *         The current value of isAudio when getting\n         */\n        isAudio(bool) {\n            if (bool !== undefined) {\n                this.isAudio_ = !!bool;\n                return;\n            }\n            return !!this.isAudio_;\n        }\n        enableAudioOnlyUI_() {\n            // Update styling immediately to show the control bar so we can get its height\n            this.addClass('vjs-audio-only-mode');\n            const playerChildren = this.children();\n            const controlBar = this.getChild('ControlBar');\n            const controlBarHeight = controlBar && controlBar.currentHeight();\n\n            // Hide all player components except the control bar. Control bar components\n            // needed only for video are hidden with CSS\n            playerChildren.forEach(child => {\n                if (child === controlBar) {\n                    return;\n                }\n                if (child.el_ && !child.hasClass('vjs-hidden')) {\n                    child.hide();\n                    this.audioOnlyCache_.hiddenChildren.push(child);\n                }\n            });\n            this.audioOnlyCache_.playerHeight = this.currentHeight();\n\n            // Set the player height the same as the control bar\n            this.height(controlBarHeight);\n            this.trigger('audioonlymodechange');\n        }\n        disableAudioOnlyUI_() {\n            this.removeClass('vjs-audio-only-mode');\n\n            // Show player components that were previously hidden\n            this.audioOnlyCache_.hiddenChildren.forEach(child => child.show());\n\n            // Reset player height\n            this.height(this.audioOnlyCache_.playerHeight);\n            this.trigger('audioonlymodechange');\n        }\n\n        /**\n         * Get the current audioOnlyMode state or set audioOnlyMode to true or false.\n         *\n         * Setting this to `true` will hide all player components except the control bar,\n         * as well as control bar components needed only for video.\n         *\n         * @param {boolean} [value]\n         *         The value to set audioOnlyMode to.\n         *\n         * @return {Promise|boolean}\n         *        A Promise is returned when setting the state, and a boolean when getting\n         *        the present state\n         */\n        audioOnlyMode(value) {\n            if (typeof value !== 'boolean' || value === this.audioOnlyMode_) {\n                return this.audioOnlyMode_;\n            }\n            this.audioOnlyMode_ = value;\n\n            // Enable Audio Only Mode\n            if (value) {\n                const exitPromises = [];\n\n                // Fullscreen and PiP are not supported in audioOnlyMode, so exit if we need to.\n                if (this.isInPictureInPicture()) {\n                    exitPromises.push(this.exitPictureInPicture());\n                }\n                if (this.isFullscreen()) {\n                    exitPromises.push(this.exitFullscreen());\n                }\n                if (this.audioPosterMode()) {\n                    exitPromises.push(this.audioPosterMode(false));\n                }\n                return Promise.all(exitPromises).then(() => this.enableAudioOnlyUI_());\n            }\n\n            // Disable Audio Only Mode\n            return Promise.resolve().then(() => this.disableAudioOnlyUI_());\n        }\n        enablePosterModeUI_() {\n            // Hide the video element and show the poster image to enable posterModeUI\n            const tech = this.tech_ && this.tech_;\n            tech.hide();\n            this.addClass('vjs-audio-poster-mode');\n            this.trigger('audiopostermodechange');\n        }\n        disablePosterModeUI_() {\n            // Show the video element and hide the poster image to disable posterModeUI\n            const tech = this.tech_ && this.tech_;\n            tech.show();\n            this.removeClass('vjs-audio-poster-mode');\n            this.trigger('audiopostermodechange');\n        }\n\n        /**\n         * Get the current audioPosterMode state or set audioPosterMode to true or false\n         *\n         * @param {boolean} [value]\n         *         The value to set audioPosterMode to.\n         *\n         * @return {Promise|boolean}\n         *         A Promise is returned when setting the state, and a boolean when getting\n         *        the present state\n         */\n        audioPosterMode(value) {\n            if (typeof value !== 'boolean' || value === this.audioPosterMode_) {\n                return this.audioPosterMode_;\n            }\n            this.audioPosterMode_ = value;\n            if (value) {\n                if (this.audioOnlyMode()) {\n                    const audioOnlyModePromise = this.audioOnlyMode(false);\n                    return audioOnlyModePromise.then(() => {\n                        // enable audio poster mode after audio only mode is disabled\n                        this.enablePosterModeUI_();\n                    });\n                }\n                return Promise.resolve().then(() => {\n                    // enable audio poster mode\n                    this.enablePosterModeUI_();\n                });\n            }\n            return Promise.resolve().then(() => {\n                // disable audio poster mode\n                this.disablePosterModeUI_();\n            });\n        }\n\n        /**\n         * A helper method for adding a {@link TextTrack} to our\n         * {@link TextTrackList}.\n         *\n         * In addition to the W3C settings we allow adding additional info through options.\n         *\n         * @see http://www.w3.org/html/wg/drafts/html/master/embedded-content-0.html#dom-media-addtexttrack\n         *\n         * @param {string} [kind]\n         *        the kind of TextTrack you are adding\n         *\n         * @param {string} [label]\n         *        the label to give the TextTrack label\n         *\n         * @param {string} [language]\n         *        the language to set on the TextTrack\n         *\n         * @return {TextTrack|undefined}\n         *         the TextTrack that was added or undefined\n         *         if there is no tech\n         */\n        addTextTrack(kind, label, language) {\n            if (this.tech_) {\n                return this.tech_.addTextTrack(kind, label, language);\n            }\n        }\n\n        /**\n         * Create a remote {@link TextTrack} and an {@link HTMLTrackElement}.\n         *\n         * @param {Object} options\n         *        Options to pass to {@link HTMLTrackElement} during creation. See\n         *        {@link HTMLTrackElement} for object properties that you should use.\n         *\n         * @param {boolean} [manualCleanup=false] if set to true, the TextTrack will not be removed\n         *                                        from the TextTrackList and HtmlTrackElementList\n         *                                        after a source change\n         *\n         * @return { import('./tracks/html-track-element').default }\n         *         the HTMLTrackElement that was created and added\n         *         to the HtmlTrackElementList and the remote\n         *         TextTrackList\n         *\n         */\n        addRemoteTextTrack(options, manualCleanup) {\n            if (this.tech_) {\n                return this.tech_.addRemoteTextTrack(options, manualCleanup);\n            }\n        }\n\n        /**\n         * Remove a remote {@link TextTrack} from the respective\n         * {@link TextTrackList} and {@link HtmlTrackElementList}.\n         *\n         * @param {Object} track\n         *        Remote {@link TextTrack} to remove\n         *\n         * @return {undefined}\n         *         does not return anything\n         */\n        removeRemoteTextTrack(obj = {}) {\n            let {\n                track\n            } = obj;\n            if (!track) {\n                track = obj;\n            }\n\n            // destructure the input into an object with a track argument, defaulting to arguments[0]\n            // default the whole argument to an empty object if nothing was passed in\n\n            if (this.tech_) {\n                return this.tech_.removeRemoteTextTrack(track);\n            }\n        }\n\n        /**\n         * Gets available media playback quality metrics as specified by the W3C's Media\n         * Playback Quality API.\n         *\n         * @see [Spec]{@link https://wicg.github.io/media-playback-quality}\n         *\n         * @return {Object|undefined}\n         *         An object with supported media playback quality metrics or undefined if there\n         *         is no tech or the tech does not support it.\n         */\n        getVideoPlaybackQuality() {\n            return this.techGet_('getVideoPlaybackQuality');\n        }\n\n        /**\n         * Get video width\n         *\n         * @return {number}\n         *         current video width\n         */\n        videoWidth() {\n            return this.tech_ && this.tech_.videoWidth && this.tech_.videoWidth() || 0;\n        }\n\n        /**\n         * Get video height\n         *\n         * @return {number}\n         *         current video height\n         */\n        videoHeight() {\n            return this.tech_ && this.tech_.videoHeight && this.tech_.videoHeight() || 0;\n        }\n\n        /**\n         * The player's language code.\n         *\n         * Changing the language will trigger\n         * [languagechange]{@link Player#event:languagechange}\n         * which Components can use to update control text.\n         * ClickableComponent will update its control text by default on\n         * [languagechange]{@link Player#event:languagechange}.\n         *\n         * @fires Player#languagechange\n         *\n         * @param {string} [code]\n         *        the language code to set the player to\n         *\n         * @return {string}\n         *         The current language code when getting\n         */\n        language(code) {\n            if (code === undefined) {\n                return this.language_;\n            }\n            if (this.language_ !== String(code).toLowerCase()) {\n                this.language_ = String(code).toLowerCase();\n\n                // during first init, it's possible some things won't be evented\n                if (isEvented(this)) {\n                    /**\n                     * fires when the player language change\n                     *\n                     * @event Player#languagechange\n                     * @type {Event}\n                     */\n                    this.trigger('languagechange');\n                }\n            }\n        }\n\n        /**\n         * Get the player's language dictionary\n         * Merge every time, because a newly added plugin might call videojs.addLanguage() at any time\n         * Languages specified directly in the player options have precedence\n         *\n         * @return {Array}\n         *         An array of of supported languages\n         */\n        languages() {\n            return merge$2(Player.prototype.options_.languages, this.languages_);\n        }\n\n        /**\n         * returns a JavaScript object representing the current track\n         * information. **DOES not return it as JSON**\n         *\n         * @return {Object}\n         *         Object representing the current of track info\n         */\n        toJSON() {\n            const options = merge$2(this.options_);\n            const tracks = options.tracks;\n            options.tracks = [];\n            for (let i = 0; i < tracks.length; i++) {\n                let track = tracks[i];\n\n                // deep merge tracks and null out player so no circular references\n                track = merge$2(track);\n                track.player = undefined;\n                options.tracks[i] = track;\n            }\n            return options;\n        }\n\n        /**\n         * Creates a simple modal dialog (an instance of the {@link ModalDialog}\n         * component) that immediately overlays the player with arbitrary\n         * content and removes itself when closed.\n         *\n         * @param {string|Function|Element|Array|null} content\n         *        Same as {@link ModalDialog#content}'s param of the same name.\n         *        The most straight-forward usage is to provide a string or DOM\n         *        element.\n         *\n         * @param {Object} [options]\n         *        Extra options which will be passed on to the {@link ModalDialog}.\n         *\n         * @return {ModalDialog}\n         *         the {@link ModalDialog} that was created\n         */\n        createModal(content, options) {\n            options = options || {};\n            options.content = content || '';\n            const modal = new ModalDialog(this, options);\n            this.addChild(modal);\n            modal.on('dispose', () => {\n                this.removeChild(modal);\n            });\n            modal.open();\n            return modal;\n        }\n\n        /**\n         * Change breakpoint classes when the player resizes.\n         *\n         * @private\n         */\n        updateCurrentBreakpoint_() {\n            if (!this.responsive()) {\n                return;\n            }\n            const currentBreakpoint = this.currentBreakpoint();\n            const currentWidth = this.currentWidth();\n            for (let i = 0; i < BREAKPOINT_ORDER.length; i++) {\n                const candidateBreakpoint = BREAKPOINT_ORDER[i];\n                const maxWidth = this.breakpoints_[candidateBreakpoint];\n                if (currentWidth <= maxWidth) {\n                    // The current breakpoint did not change, nothing to do.\n                    if (currentBreakpoint === candidateBreakpoint) {\n                        return;\n                    }\n\n                    // Only remove a class if there is a current breakpoint.\n                    if (currentBreakpoint) {\n                        this.removeClass(BREAKPOINT_CLASSES[currentBreakpoint]);\n                    }\n                    this.addClass(BREAKPOINT_CLASSES[candidateBreakpoint]);\n                    this.breakpoint_ = candidateBreakpoint;\n                    break;\n                }\n            }\n        }\n\n        /**\n         * Removes the current breakpoint.\n         *\n         * @private\n         */\n        removeCurrentBreakpoint_() {\n            const className = this.currentBreakpointClass();\n            this.breakpoint_ = '';\n            if (className) {\n                this.removeClass(className);\n            }\n        }\n\n        /**\n         * Get or set breakpoints on the player.\n         *\n         * Calling this method with an object or `true` will remove any previous\n         * custom breakpoints and start from the defaults again.\n         *\n         * @param  {Object|boolean} [breakpoints]\n         *         If an object is given, it can be used to provide custom\n         *         breakpoints. If `true` is given, will set default breakpoints.\n         *         If this argument is not given, will simply return the current\n         *         breakpoints.\n         *\n         * @param  {number} [breakpoints.tiny]\n         *         The maximum width for the \"vjs-layout-tiny\" class.\n         *\n         * @param  {number} [breakpoints.xsmall]\n         *         The maximum width for the \"vjs-layout-x-small\" class.\n         *\n         * @param  {number} [breakpoints.small]\n         *         The maximum width for the \"vjs-layout-small\" class.\n         *\n         * @param  {number} [breakpoints.medium]\n         *         The maximum width for the \"vjs-layout-medium\" class.\n         *\n         * @param  {number} [breakpoints.large]\n         *         The maximum width for the \"vjs-layout-large\" class.\n         *\n         * @param  {number} [breakpoints.xlarge]\n         *         The maximum width for the \"vjs-layout-x-large\" class.\n         *\n         * @param  {number} [breakpoints.huge]\n         *         The maximum width for the \"vjs-layout-huge\" class.\n         *\n         * @return {Object}\n         *         An object mapping breakpoint names to maximum width values.\n         */\n        breakpoints(breakpoints) {\n            // Used as a getter.\n            if (breakpoints === undefined) {\n                return Object.assign(this.breakpoints_);\n            }\n            this.breakpoint_ = '';\n            this.breakpoints_ = Object.assign({}, DEFAULT_BREAKPOINTS, breakpoints);\n\n            // When breakpoint definitions change, we need to update the currently\n            // selected breakpoint.\n            this.updateCurrentBreakpoint_();\n\n            // Clone the breakpoints before returning.\n            return Object.assign(this.breakpoints_);\n        }\n\n        /**\n         * Get or set a flag indicating whether or not this player should adjust\n         * its UI based on its dimensions.\n         *\n         * @param  {boolean} value\n         *         Should be `true` if the player should adjust its UI based on its\n         *         dimensions; otherwise, should be `false`.\n         *\n         * @return {boolean}\n         *         Will be `true` if this player should adjust its UI based on its\n         *         dimensions; otherwise, will be `false`.\n         */\n        responsive(value) {\n            // Used as a getter.\n            if (value === undefined) {\n                return this.responsive_;\n            }\n            value = Boolean(value);\n            const current = this.responsive_;\n\n            // Nothing changed.\n            if (value === current) {\n                return;\n            }\n\n            // The value actually changed, set it.\n            this.responsive_ = value;\n\n            // Start listening for breakpoints and set the initial breakpoint if the\n            // player is now responsive.\n            if (value) {\n                this.on('playerresize', this.boundUpdateCurrentBreakpoint_);\n                this.updateCurrentBreakpoint_();\n\n                // Stop listening for breakpoints if the player is no longer responsive.\n            } else {\n                this.off('playerresize', this.boundUpdateCurrentBreakpoint_);\n                this.removeCurrentBreakpoint_();\n            }\n            return value;\n        }\n\n        /**\n         * Get current breakpoint name, if any.\n         *\n         * @return {string}\n         *         If there is currently a breakpoint set, returns a the key from the\n         *         breakpoints object matching it. Otherwise, returns an empty string.\n         */\n        currentBreakpoint() {\n            return this.breakpoint_;\n        }\n\n        /**\n         * Get the current breakpoint class name.\n         *\n         * @return {string}\n         *         The matching class name (e.g. `\"vjs-layout-tiny\"` or\n         *         `\"vjs-layout-large\"`) for the current breakpoint. Empty string if\n         *         there is no current breakpoint.\n         */\n        currentBreakpointClass() {\n            return BREAKPOINT_CLASSES[this.breakpoint_] || '';\n        }\n\n        /**\n         * An object that describes a single piece of media.\n         *\n         * Properties that are not part of this type description will be retained; so,\n         * this can be viewed as a generic metadata storage mechanism as well.\n         *\n         * @see      {@link https://wicg.github.io/mediasession/#the-mediametadata-interface}\n         * @typedef  {Object} Player~MediaObject\n         *\n         * @property {string} [album]\n         *           Unused, except if this object is passed to the `MediaSession`\n         *           API.\n         *\n         * @property {string} [artist]\n         *           Unused, except if this object is passed to the `MediaSession`\n         *           API.\n         *\n         * @property {Object[]} [artwork]\n         *           Unused, except if this object is passed to the `MediaSession`\n         *           API. If not specified, will be populated via the `poster`, if\n         *           available.\n         *\n         * @property {string} [poster]\n         *           URL to an image that will display before playback.\n         *\n         * @property {Tech~SourceObject|Tech~SourceObject[]|string} [src]\n         *           A single source object, an array of source objects, or a string\n         *           referencing a URL to a media source. It is _highly recommended_\n         *           that an object or array of objects is used here, so that source\n         *           selection algorithms can take the `type` into account.\n         *\n         * @property {string} [title]\n         *           Unused, except if this object is passed to the `MediaSession`\n         *           API.\n         *\n         * @property {Object[]} [textTracks]\n         *           An array of objects to be used to create text tracks, following\n         *           the {@link https://www.w3.org/TR/html50/embedded-content-0.html#the-track-element|native track element format}.\n         *           For ease of removal, these will be created as \"remote\" text\n         *           tracks and set to automatically clean up on source changes.\n         *\n         *           These objects may have properties like `src`, `kind`, `label`,\n         *           and `language`, see {@link Tech#createRemoteTextTrack}.\n         */\n\n        /**\n         * Populate the player using a {@link Player~MediaObject|MediaObject}.\n         *\n         * @param  {Player~MediaObject} media\n         *         A media object.\n         *\n         * @param  {Function} ready\n         *         A callback to be called when the player is ready.\n         */\n        loadMedia(media, ready) {\n            if (!media || typeof media !== 'object') {\n                return;\n            }\n            this.reset();\n\n            // Clone the media object so it cannot be mutated from outside.\n            this.cache_.media = merge$2(media);\n            const {\n                artist,\n                artwork,\n                description,\n                poster,\n                src,\n                textTracks,\n                title\n            } = this.cache_.media;\n\n            // If `artwork` is not given, create it using `poster`.\n            if (!artwork && poster) {\n                this.cache_.media.artwork = [{\n                    src: poster,\n                    type: getMimetype(poster)\n                }];\n            }\n            if (src) {\n                this.src(src);\n            }\n            if (poster) {\n                this.poster(poster);\n            }\n            if (Array.isArray(textTracks)) {\n                textTracks.forEach(tt => this.addRemoteTextTrack(tt, false));\n            }\n            if (this.titleBar) {\n                this.titleBar.update({\n                    title,\n                    description: description || artist || ''\n                });\n            }\n            this.ready(ready);\n        }\n\n        /**\n         * Get a clone of the current {@link Player~MediaObject} for this player.\n         *\n         * If the `loadMedia` method has not been used, will attempt to return a\n         * {@link Player~MediaObject} based on the current state of the player.\n         *\n         * @return {Player~MediaObject}\n         */\n        getMedia() {\n            if (!this.cache_.media) {\n                const poster = this.poster();\n                const src = this.currentSources();\n                const textTracks = Array.prototype.map.call(this.remoteTextTracks(), tt => ({\n                    kind: tt.kind,\n                    label: tt.label,\n                    language: tt.language,\n                    src: tt.src\n                }));\n                const media = {\n                    src,\n                    textTracks\n                };\n                if (poster) {\n                    media.poster = poster;\n                    media.artwork = [{\n                        src: media.poster,\n                        type: getMimetype(media.poster)\n                    }];\n                }\n                return media;\n            }\n            return merge$2(this.cache_.media);\n        }\n\n        /**\n         * Gets tag settings\n         *\n         * @param {Element} tag\n         *        The player tag\n         *\n         * @return {Object}\n         *         An object containing all of the settings\n         *         for a player tag\n         */\n        static getTagSettings(tag) {\n            const baseOptions = {\n                sources: [],\n                tracks: []\n            };\n            const tagOptions = getAttributes(tag);\n            const dataSetup = tagOptions['data-setup'];\n            if (hasClass(tag, 'vjs-fill')) {\n                tagOptions.fill = true;\n            }\n            if (hasClass(tag, 'vjs-fluid')) {\n                tagOptions.fluid = true;\n            }\n\n            // Check if data-setup attr exists.\n            if (dataSetup !== null) {\n                // Parse options JSON\n                // If empty string, make it a parsable json object.\n                const [err, data] = tuple(dataSetup || '{}');\n                if (err) {\n                    log$1.error(err);\n                }\n                Object.assign(tagOptions, data);\n            }\n            Object.assign(baseOptions, tagOptions);\n\n            // Get tag children settings\n            if (tag.hasChildNodes()) {\n                const children = tag.childNodes;\n                for (let i = 0, j = children.length; i < j; i++) {\n                    const child = children[i];\n                    // Change case needed: http://ejohn.org/blog/nodename-case-sensitivity/\n                    const childName = child.nodeName.toLowerCase();\n                    if (childName === 'source') {\n                        baseOptions.sources.push(getAttributes(child));\n                    } else if (childName === 'track') {\n                        baseOptions.tracks.push(getAttributes(child));\n                    }\n                }\n            }\n            return baseOptions;\n        }\n\n        /**\n         * Set debug mode to enable/disable logs at info level.\n         *\n         * @param {boolean} enabled\n         * @fires Player#debugon\n         * @fires Player#debugoff\n         */\n        debug(enabled) {\n            if (enabled === undefined) {\n                return this.debugEnabled_;\n            }\n            if (enabled) {\n                this.trigger('debugon');\n                this.previousLogLevel_ = this.log.level;\n                this.log.level('debug');\n                this.debugEnabled_ = true;\n            } else {\n                this.trigger('debugoff');\n                this.log.level(this.previousLogLevel_);\n                this.previousLogLevel_ = undefined;\n                this.debugEnabled_ = false;\n            }\n        }\n\n        /**\n         * Set or get current playback rates.\n         * Takes an array and updates the playback rates menu with the new items.\n         * Pass in an empty array to hide the menu.\n         * Values other than arrays are ignored.\n         *\n         * @fires Player#playbackrateschange\n         * @param {number[]} newRates\n         *                   The new rates that the playback rates menu should update to.\n         *                   An empty array will hide the menu\n         * @return {number[]} When used as a getter will return the current playback rates\n         */\n        playbackRates(newRates) {\n            if (newRates === undefined) {\n                return this.cache_.playbackRates;\n            }\n\n            // ignore any value that isn't an array\n            if (!Array.isArray(newRates)) {\n                return;\n            }\n\n            // ignore any arrays that don't only contain numbers\n            if (!newRates.every(rate => typeof rate === 'number')) {\n                return;\n            }\n            this.cache_.playbackRates = newRates;\n\n            /**\n             * fires when the playback rates in a player are changed\n             *\n             * @event Player#playbackrateschange\n             * @type {Event}\n             */\n            this.trigger('playbackrateschange');\n        }\n    }\n\n    /**\n     * Get the {@link VideoTrackList}\n     *\n     * @link https://html.spec.whatwg.org/multipage/embedded-content.html#videotracklist\n     *\n     * @return {VideoTrackList}\n     *         the current video track list\n     *\n     * @method Player.prototype.videoTracks\n     */\n\n    /**\n     * Get the {@link AudioTrackList}\n     *\n     * @link https://html.spec.whatwg.org/multipage/embedded-content.html#audiotracklist\n     *\n     * @return {AudioTrackList}\n     *         the current audio track list\n     *\n     * @method Player.prototype.audioTracks\n     */\n\n    /**\n     * Get the {@link TextTrackList}\n     *\n     * @link http://www.w3.org/html/wg/drafts/html/master/embedded-content-0.html#dom-media-texttracks\n     *\n     * @return {TextTrackList}\n     *         the current text track list\n     *\n     * @method Player.prototype.textTracks\n     */\n\n    /**\n     * Get the remote {@link TextTrackList}\n     *\n     * @return {TextTrackList}\n     *         The current remote text track list\n     *\n     * @method Player.prototype.remoteTextTracks\n     */\n\n    /**\n     * Get the remote {@link HtmlTrackElementList} tracks.\n     *\n     * @return {HtmlTrackElementList}\n     *         The current remote text track element list\n     *\n     * @method Player.prototype.remoteTextTrackEls\n     */\n\n    ALL.names.forEach(function (name) {\n        const props = ALL[name];\n        Player.prototype[props.getterName] = function () {\n            if (this.tech_) {\n                return this.tech_[props.getterName]();\n            }\n\n            // if we have not yet loadTech_, we create {video,audio,text}Tracks_\n            // these will be passed to the tech during loading\n            this[props.privateName] = this[props.privateName] || new props.ListClass();\n            return this[props.privateName];\n        };\n    });\n\n    /**\n     * Get or set the `Player`'s crossorigin option. For the HTML5 player, this\n     * sets the `crossOrigin` property on the `<video>` tag to control the CORS\n     * behavior.\n     *\n     * @see [Video Element Attributes]{@link https://developer.mozilla.org/en-US/docs/Web/HTML/Element/video#attr-crossorigin}\n     *\n     * @param {string} [value]\n     *        The value to set the `Player`'s crossorigin to. If an argument is\n     *        given, must be one of `anonymous` or `use-credentials`.\n     *\n     * @return {string|undefined}\n     *         - The current crossorigin value of the `Player` when getting.\n     *         - undefined when setting\n     */\n    Player.prototype.crossorigin = Player.prototype.crossOrigin;\n\n    /**\n     * Global enumeration of players.\n     *\n     * The keys are the player IDs and the values are either the {@link Player}\n     * instance or `null` for disposed players.\n     *\n     * @type {Object}\n     */\n    Player.players = {};\n    const navigator = window.navigator;\n\n    /*\n   * Player instance options, surfaced using options\n   * options = Player.prototype.options_\n   * Make changes in options, not here.\n   *\n   * @type {Object}\n   * @private\n   */\n    Player.prototype.options_ = {\n        // Default order of fallback technology\n        techOrder: Tech.defaultTechOrder_,\n        html5: {},\n        // enable sourceset by default\n        enableSourceset: true,\n        // default inactivity timeout\n        inactivityTimeout: 2000,\n        // default playback rates\n        playbackRates: [],\n        // Add playback rate selection by adding rates\n        // 'playbackRates': [0.5, 1, 1.5, 2],\n        liveui: false,\n        // Included control sets\n        children: ['mediaLoader', 'posterImage', 'titleBar', 'textTrackDisplay', 'loadingSpinner', 'bigPlayButton', 'liveTracker', 'controlBar', 'errorDisplay', 'textTrackSettings', 'resizeManager'],\n        language: navigator && (navigator.languages && navigator.languages[0] || navigator.userLanguage || navigator.language) || 'en',\n        // locales and their language translations\n        languages: {},\n        // Default message to show when a video cannot be played.\n        notSupportedMessage: 'No compatible source was found for this media.',\n        normalizeAutoplay: false,\n        fullscreen: {\n            options: {\n                navigationUI: 'hide'\n            }\n        },\n        breakpoints: {},\n        responsive: false,\n        audioOnlyMode: false,\n        audioPosterMode: false\n    };\n    [\n        /**\n         * Returns whether or not the player is in the \"ended\" state.\n         *\n         * @return {Boolean} True if the player is in the ended state, false if not.\n         * @method Player#ended\n         */\n        'ended',\n        /**\n         * Returns whether or not the player is in the \"seeking\" state.\n         *\n         * @return {Boolean} True if the player is in the seeking state, false if not.\n         * @method Player#seeking\n         */\n        'seeking',\n        /**\n         * Returns the TimeRanges of the media that are currently available\n         * for seeking to.\n         *\n         * @return {TimeRanges} the seekable intervals of the media timeline\n         * @method Player#seekable\n         */\n        'seekable',\n        /**\n         * Returns the current state of network activity for the element, from\n         * the codes in the list below.\n         * - NETWORK_EMPTY (numeric value 0)\n         *   The element has not yet been initialised. All attributes are in\n         *   their initial states.\n         * - NETWORK_IDLE (numeric value 1)\n         *   The element's resource selection algorithm is active and has\n         *   selected a resource, but it is not actually using the network at\n         *   this time.\n         * - NETWORK_LOADING (numeric value 2)\n         *   The user agent is actively trying to download data.\n         * - NETWORK_NO_SOURCE (numeric value 3)\n         *   The element's resource selection algorithm is active, but it has\n         *   not yet found a resource to use.\n         *\n         * @see https://html.spec.whatwg.org/multipage/embedded-content.html#network-states\n         * @return {number} the current network activity state\n         * @method Player#networkState\n         */\n        'networkState',\n        /**\n         * Returns a value that expresses the current state of the element\n         * with respect to rendering the current playback position, from the\n         * codes in the list below.\n         * - HAVE_NOTHING (numeric value 0)\n         *   No information regarding the media resource is available.\n         * - HAVE_METADATA (numeric value 1)\n         *   Enough of the resource has been obtained that the duration of the\n         *   resource is available.\n         * - HAVE_CURRENT_DATA (numeric value 2)\n         *   Data for the immediate current playback position is available.\n         * - HAVE_FUTURE_DATA (numeric value 3)\n         *   Data for the immediate current playback position is available, as\n         *   well as enough data for the user agent to advance the current\n         *   playback position in the direction of playback.\n         * - HAVE_ENOUGH_DATA (numeric value 4)\n         *   The user agent estimates that enough data is available for\n         *   playback to proceed uninterrupted.\n         *\n         * @see https://html.spec.whatwg.org/multipage/embedded-content.html#dom-media-readystate\n         * @return {number} the current playback rendering state\n         * @method Player#readyState\n         */\n        'readyState'].forEach(function (fn) {\n        Player.prototype[fn] = function () {\n            return this.techGet_(fn);\n        };\n    });\n    TECH_EVENTS_RETRIGGER.forEach(function (event) {\n        Player.prototype[`handleTech${toTitleCase$1(event)}_`] = function () {\n            return this.trigger(event);\n        };\n    });\n\n    /**\n     * Fired when the player has initial duration and dimension information\n     *\n     * @event Player#loadedmetadata\n     * @type {Event}\n     */\n\n    /**\n     * Fired when the player has downloaded data at the current playback position\n     *\n     * @event Player#loadeddata\n     * @type {Event}\n     */\n\n    /**\n     * Fired when the current playback position has changed *\n     * During playback this is fired every 15-250 milliseconds, depending on the\n     * playback technology in use.\n     *\n     * @event Player#timeupdate\n     * @type {Event}\n     */\n\n    /**\n     * Fired when the volume changes\n     *\n     * @event Player#volumechange\n     * @type {Event}\n     */\n\n    /**\n     * Reports whether or not a player has a plugin available.\n     *\n     * This does not report whether or not the plugin has ever been initialized\n     * on this player. For that, [usingPlugin]{@link Player#usingPlugin}.\n     *\n     * @method Player#hasPlugin\n     * @param  {string}  name\n     *         The name of a plugin.\n     *\n     * @return {boolean}\n     *         Whether or not this player has the requested plugin available.\n     */\n\n    /**\n     * Reports whether or not a player is using a plugin by name.\n     *\n     * For basic plugins, this only reports whether the plugin has _ever_ been\n     * initialized on this player.\n     *\n     * @method Player#usingPlugin\n     * @param  {string} name\n     *         The name of a plugin.\n     *\n     * @return {boolean}\n     *         Whether or not this player is using the requested plugin.\n     */\n\n    Component$1.registerComponent('Player', Player);\n\n    /**\n     * @file plugin.js\n     */\n\n    /**\n     * The base plugin name.\n     *\n     * @private\n     * @constant\n     * @type {string}\n     */\n    const BASE_PLUGIN_NAME = 'plugin';\n\n    /**\n     * The key on which a player's active plugins cache is stored.\n     *\n     * @private\n     * @constant\n     * @type     {string}\n     */\n    const PLUGIN_CACHE_KEY = 'activePlugins_';\n\n    /**\n     * Stores registered plugins in a private space.\n     *\n     * @private\n     * @type    {Object}\n     */\n    const pluginStorage = {};\n\n    /**\n     * Reports whether or not a plugin has been registered.\n     *\n     * @private\n     * @param   {string} name\n     *          The name of a plugin.\n     *\n     * @return {boolean}\n     *          Whether or not the plugin has been registered.\n     */\n    const pluginExists = name => pluginStorage.hasOwnProperty(name);\n\n    /**\n     * Get a single registered plugin by name.\n     *\n     * @private\n     * @param   {string} name\n     *          The name of a plugin.\n     *\n     * @return {typeof Plugin|Function|undefined}\n     *          The plugin (or undefined).\n     */\n    const getPlugin = name => pluginExists(name) ? pluginStorage[name] : undefined;\n\n    /**\n     * Marks a plugin as \"active\" on a player.\n     *\n     * Also, ensures that the player has an object for tracking active plugins.\n     *\n     * @private\n     * @param   {Player} player\n     *          A Video.js player instance.\n     *\n     * @param   {string} name\n     *          The name of a plugin.\n     */\n    const markPluginAsActive = (player, name) => {\n        player[PLUGIN_CACHE_KEY] = player[PLUGIN_CACHE_KEY] || {};\n        player[PLUGIN_CACHE_KEY][name] = true;\n    };\n\n    /**\n     * Triggers a pair of plugin setup events.\n     *\n     * @private\n     * @param  {Player} player\n     *         A Video.js player instance.\n     *\n     * @param  {Plugin~PluginEventHash} hash\n     *         A plugin event hash.\n     *\n     * @param  {boolean} [before]\n     *         If true, prefixes the event name with \"before\". In other words,\n     *         use this to trigger \"beforepluginsetup\" instead of \"pluginsetup\".\n     */\n    const triggerSetupEvent = (player, hash, before) => {\n        const eventName = (before ? 'before' : '') + 'pluginsetup';\n        player.trigger(eventName, hash);\n        player.trigger(eventName + ':' + hash.name, hash);\n    };\n\n    /**\n     * Takes a basic plugin function and returns a wrapper function which marks\n     * on the player that the plugin has been activated.\n     *\n     * @private\n     * @param   {string} name\n     *          The name of the plugin.\n     *\n     * @param   {Function} plugin\n     *          The basic plugin.\n     *\n     * @return {Function}\n     *          A wrapper function for the given plugin.\n     */\n    const createBasicPlugin = function (name, plugin) {\n        const basicPluginWrapper = function () {\n            // We trigger the \"beforepluginsetup\" and \"pluginsetup\" events on the player\n            // regardless, but we want the hash to be consistent with the hash provided\n            // for advanced plugins.\n            //\n            // The only potentially counter-intuitive thing here is the `instance` in\n            // the \"pluginsetup\" event is the value returned by the `plugin` function.\n            triggerSetupEvent(this, {\n                name,\n                plugin,\n                instance: null\n            }, true);\n            const instance = plugin.apply(this, arguments);\n            markPluginAsActive(this, name);\n            triggerSetupEvent(this, {\n                name,\n                plugin,\n                instance\n            });\n            return instance;\n        };\n        Object.keys(plugin).forEach(function (prop) {\n            basicPluginWrapper[prop] = plugin[prop];\n        });\n        return basicPluginWrapper;\n    };\n\n    /**\n     * Takes a plugin sub-class and returns a factory function for generating\n     * instances of it.\n     *\n     * This factory function will replace itself with an instance of the requested\n     * sub-class of Plugin.\n     *\n     * @private\n     * @param   {string} name\n     *          The name of the plugin.\n     *\n     * @param   {Plugin} PluginSubClass\n     *          The advanced plugin.\n     *\n     * @return {Function}\n     */\n    const createPluginFactory = (name, PluginSubClass) => {\n        // Add a `name` property to the plugin prototype so that each plugin can\n        // refer to itself by name.\n        PluginSubClass.prototype.name = name;\n        return function (...args) {\n            triggerSetupEvent(this, {\n                name,\n                plugin: PluginSubClass,\n                instance: null\n            }, true);\n            const instance = new PluginSubClass(...[this, ...args]);\n\n            // The plugin is replaced by a function that returns the current instance.\n            this[name] = () => instance;\n            triggerSetupEvent(this, instance.getEventHash());\n            return instance;\n        };\n    };\n\n    /**\n     * Parent class for all advanced plugins.\n     *\n     * @mixes   module:evented~EventedMixin\n     * @mixes   module:stateful~StatefulMixin\n     * @fires   Player#beforepluginsetup\n     * @fires   Player#beforepluginsetup:$name\n     * @fires   Player#pluginsetup\n     * @fires   Player#pluginsetup:$name\n     * @listens Player#dispose\n     * @throws  {Error}\n     *          If attempting to instantiate the base {@link Plugin} class\n     *          directly instead of via a sub-class.\n     */\n    class Plugin {\n        /**\n         * Creates an instance of this class.\n         *\n         * Sub-classes should call `super` to ensure plugins are properly initialized.\n         *\n         * @param {Player} player\n         *        A Video.js player instance.\n         */\n        constructor(player) {\n            if (this.constructor === Plugin) {\n                throw new Error('Plugin must be sub-classed; not directly instantiated.');\n            }\n            this.player = player;\n            if (!this.log) {\n                this.log = this.player.log.createLogger(this.name);\n            }\n\n            // Make this object evented, but remove the added `trigger` method so we\n            // use the prototype version instead.\n            evented(this);\n            delete this.trigger;\n            stateful(this, this.constructor.defaultState);\n            markPluginAsActive(player, this.name);\n\n            // Auto-bind the dispose method so we can use it as a listener and unbind\n            // it later easily.\n            this.dispose = this.dispose.bind(this);\n\n            // If the player is disposed, dispose the plugin.\n            player.on('dispose', this.dispose);\n        }\n\n        /**\n         * Get the version of the plugin that was set on <pluginName>.VERSION\n         */\n        version() {\n            return this.constructor.VERSION;\n        }\n\n        /**\n         * Each event triggered by plugins includes a hash of additional data with\n         * conventional properties.\n         *\n         * This returns that object or mutates an existing hash.\n         *\n         * @param   {Object} [hash={}]\n         *          An object to be used as event an event hash.\n         *\n         * @return {Plugin~PluginEventHash}\n         *          An event hash object with provided properties mixed-in.\n         */\n        getEventHash(hash = {}) {\n            hash.name = this.name;\n            hash.plugin = this.constructor;\n            hash.instance = this;\n            return hash;\n        }\n\n        /**\n         * Triggers an event on the plugin object and overrides\n         * {@link module:evented~EventedMixin.trigger|EventedMixin.trigger}.\n         *\n         * @param   {string|Object} event\n         *          An event type or an object with a type property.\n         *\n         * @param   {Object} [hash={}]\n         *          Additional data hash to merge with a\n         *          {@link Plugin~PluginEventHash|PluginEventHash}.\n         *\n         * @return {boolean}\n         *          Whether or not default was prevented.\n         */\n        trigger(event, hash = {}) {\n            return trigger(this.eventBusEl_, event, this.getEventHash(hash));\n        }\n\n        /**\n         * Handles \"statechanged\" events on the plugin. No-op by default, override by\n         * subclassing.\n         *\n         * @abstract\n         * @param    {Event} e\n         *           An event object provided by a \"statechanged\" event.\n         *\n         * @param    {Object} e.changes\n         *           An object describing changes that occurred with the \"statechanged\"\n         *           event.\n         */\n        handleStateChanged(e) {}\n\n        /**\n         * Disposes a plugin.\n         *\n         * Subclasses can override this if they want, but for the sake of safety,\n         * it's probably best to subscribe the \"dispose\" event.\n         *\n         * @fires Plugin#dispose\n         */\n        dispose() {\n            const {\n                name,\n                player\n            } = this;\n\n            /**\n             * Signals that a advanced plugin is about to be disposed.\n             *\n             * @event Plugin#dispose\n             * @type  {Event}\n             */\n            this.trigger('dispose');\n            this.off();\n            player.off('dispose', this.dispose);\n\n            // Eliminate any possible sources of leaking memory by clearing up\n            // references between the player and the plugin instance and nulling out\n            // the plugin's state and replacing methods with a function that throws.\n            player[PLUGIN_CACHE_KEY][name] = false;\n            this.player = this.state = null;\n\n            // Finally, replace the plugin name on the player with a new factory\n            // function, so that the plugin is ready to be set up again.\n            player[name] = createPluginFactory(name, pluginStorage[name]);\n        }\n\n        /**\n         * Determines if a plugin is a basic plugin (i.e. not a sub-class of `Plugin`).\n         *\n         * @param   {string|Function} plugin\n         *          If a string, matches the name of a plugin. If a function, will be\n         *          tested directly.\n         *\n         * @return {boolean}\n         *          Whether or not a plugin is a basic plugin.\n         */\n        static isBasic(plugin) {\n            const p = typeof plugin === 'string' ? getPlugin(plugin) : plugin;\n            return typeof p === 'function' && !Plugin.prototype.isPrototypeOf(p.prototype);\n        }\n\n        /**\n         * Register a Video.js plugin.\n         *\n         * @param   {string} name\n         *          The name of the plugin to be registered. Must be a string and\n         *          must not match an existing plugin or a method on the `Player`\n         *          prototype.\n         *\n         * @param   {typeof Plugin|Function} plugin\n         *          A sub-class of `Plugin` or a function for basic plugins.\n         *\n         * @return {typeof Plugin|Function}\n         *          For advanced plugins, a factory function for that plugin. For\n         *          basic plugins, a wrapper function that initializes the plugin.\n         */\n        static registerPlugin(name, plugin) {\n            if (typeof name !== 'string') {\n                throw new Error(`Illegal plugin name, \"${name}\", must be a string, was ${typeof name}.`);\n            }\n            if (pluginExists(name)) {\n                log$1.warn(`A plugin named \"${name}\" already exists. You may want to avoid re-registering plugins!`);\n            } else if (Player.prototype.hasOwnProperty(name)) {\n                throw new Error(`Illegal plugin name, \"${name}\", cannot share a name with an existing player method!`);\n            }\n            if (typeof plugin !== 'function') {\n                throw new Error(`Illegal plugin for \"${name}\", must be a function, was ${typeof plugin}.`);\n            }\n            pluginStorage[name] = plugin;\n\n            // Add a player prototype method for all sub-classed plugins (but not for\n            // the base Plugin class).\n            if (name !== BASE_PLUGIN_NAME) {\n                if (Plugin.isBasic(plugin)) {\n                    Player.prototype[name] = createBasicPlugin(name, plugin);\n                } else {\n                    Player.prototype[name] = createPluginFactory(name, plugin);\n                }\n            }\n            return plugin;\n        }\n\n        /**\n         * De-register a Video.js plugin.\n         *\n         * @param  {string} name\n         *         The name of the plugin to be de-registered. Must be a string that\n         *         matches an existing plugin.\n         *\n         * @throws {Error}\n         *         If an attempt is made to de-register the base plugin.\n         */\n        static deregisterPlugin(name) {\n            if (name === BASE_PLUGIN_NAME) {\n                throw new Error('Cannot de-register base plugin.');\n            }\n            if (pluginExists(name)) {\n                delete pluginStorage[name];\n                delete Player.prototype[name];\n            }\n        }\n\n        /**\n         * Gets an object containing multiple Video.js plugins.\n         *\n         * @param   {Array} [names]\n         *          If provided, should be an array of plugin names. Defaults to _all_\n         *          plugin names.\n         *\n         * @return {Object|undefined}\n         *          An object containing plugin(s) associated with their name(s) or\n         *          `undefined` if no matching plugins exist).\n         */\n        static getPlugins(names = Object.keys(pluginStorage)) {\n            let result;\n            names.forEach(name => {\n                const plugin = getPlugin(name);\n                if (plugin) {\n                    result = result || {};\n                    result[name] = plugin;\n                }\n            });\n            return result;\n        }\n\n        /**\n         * Gets a plugin's version, if available\n         *\n         * @param   {string} name\n         *          The name of a plugin.\n         *\n         * @return {string}\n         *          The plugin's version or an empty string.\n         */\n        static getPluginVersion(name) {\n            const plugin = getPlugin(name);\n            return plugin && plugin.VERSION || '';\n        }\n    }\n\n    /**\n     * Gets a plugin by name if it exists.\n     *\n     * @static\n     * @method   getPlugin\n     * @memberOf Plugin\n     * @param    {string} name\n     *           The name of a plugin.\n     *\n     * @returns  {typeof Plugin|Function|undefined}\n     *           The plugin (or `undefined`).\n     */\n    Plugin.getPlugin = getPlugin;\n\n    /**\n     * The name of the base plugin class as it is registered.\n     *\n     * @type {string}\n     */\n    Plugin.BASE_PLUGIN_NAME = BASE_PLUGIN_NAME;\n    Plugin.registerPlugin(BASE_PLUGIN_NAME, Plugin);\n\n    /**\n     * Documented in player.js\n     *\n     * @ignore\n     */\n    Player.prototype.usingPlugin = function (name) {\n        return !!this[PLUGIN_CACHE_KEY] && this[PLUGIN_CACHE_KEY][name] === true;\n    };\n\n    /**\n     * Documented in player.js\n     *\n     * @ignore\n     */\n    Player.prototype.hasPlugin = function (name) {\n        return !!pluginExists(name);\n    };\n\n    /**\n     * Signals that a plugin is about to be set up on a player.\n     *\n     * @event    Player#beforepluginsetup\n     * @type     {Plugin~PluginEventHash}\n     */\n\n    /**\n     * Signals that a plugin is about to be set up on a player - by name. The name\n     * is the name of the plugin.\n     *\n     * @event    Player#beforepluginsetup:$name\n     * @type     {Plugin~PluginEventHash}\n     */\n\n    /**\n     * Signals that a plugin has just been set up on a player.\n     *\n     * @event    Player#pluginsetup\n     * @type     {Plugin~PluginEventHash}\n     */\n\n    /**\n     * Signals that a plugin has just been set up on a player - by name. The name\n     * is the name of the plugin.\n     *\n     * @event    Player#pluginsetup:$name\n     * @type     {Plugin~PluginEventHash}\n     */\n\n    /**\n     * @typedef  {Object} Plugin~PluginEventHash\n     *\n     * @property {string} instance\n     *           For basic plugins, the return value of the plugin function. For\n     *           advanced plugins, the plugin instance on which the event is fired.\n     *\n     * @property {string} name\n     *           The name of the plugin.\n     *\n     * @property {string} plugin\n     *           For basic plugins, the plugin function. For advanced plugins, the\n     *           plugin class/constructor.\n     */\n\n    /**\n     * @file deprecate.js\n     * @module deprecate\n     */\n\n    /**\n     * Decorate a function with a deprecation message the first time it is called.\n     *\n     * @param  {string}   message\n     *         A deprecation message to log the first time the returned function\n     *         is called.\n     *\n     * @param  {Function} fn\n     *         The function to be deprecated.\n     *\n     * @return {Function}\n     *         A wrapper function that will log a deprecation warning the first\n     *         time it is called. The return value will be the return value of\n     *         the wrapped function.\n     */\n    function deprecate(message, fn) {\n        let warned = false;\n        return function (...args) {\n            if (!warned) {\n                log$1.warn(message);\n            }\n            warned = true;\n            return fn.apply(this, args);\n        };\n    }\n\n    /**\n     * Internal function used to mark a function as deprecated in the next major\n     * version with consistent messaging.\n     *\n     * @param  {number}   major   The major version where it will be removed\n     * @param  {string}   oldName The old function name\n     * @param  {string}   newName The new function name\n     * @param  {Function} fn      The function to deprecate\n     * @return {Function}         The decorated function\n     */\n    function deprecateForMajor(major, oldName, newName, fn) {\n        return deprecate(`${oldName} is deprecated and will be removed in ${major}.0; please use ${newName} instead.`, fn);\n    }\n\n    /**\n     * @file video.js\n     * @module videojs\n     */\n\n    /**\n     * Normalize an `id` value by trimming off a leading `#`\n     *\n     * @private\n     * @param   {string} id\n     *          A string, maybe with a leading `#`.\n     *\n     * @return {string}\n     *          The string, without any leading `#`.\n     */\n    const normalizeId = id => id.indexOf('#') === 0 ? id.slice(1) : id;\n\n    /**\n     * A callback that is called when a component is ready. Does not have any\n     * parameters and any callback value will be ignored. See: {@link Component~ReadyCallback}\n     *\n     * @callback ReadyCallback\n     */\n\n    /**\n     * The `videojs()` function doubles as the main function for users to create a\n     * {@link Player} instance as well as the main library namespace.\n     *\n     * It can also be used as a getter for a pre-existing {@link Player} instance.\n     * However, we _strongly_ recommend using `videojs.getPlayer()` for this\n     * purpose because it avoids any potential for unintended initialization.\n     *\n     * Due to [limitations](https://github.com/jsdoc3/jsdoc/issues/955#issuecomment-313829149)\n     * of our JSDoc template, we cannot properly document this as both a function\n     * and a namespace, so its function signature is documented here.\n     *\n     * #### Arguments\n     * ##### id\n     * string|Element, **required**\n     *\n     * Video element or video element ID.\n     *\n     * ##### options\n     * Object, optional\n     *\n     * Options object for providing settings.\n     * See: [Options Guide](https://docs.videojs.com/tutorial-options.html).\n     *\n     * ##### ready\n     * {@link Component~ReadyCallback}, optional\n     *\n     * A function to be called when the {@link Player} and {@link Tech} are ready.\n     *\n     * #### Return Value\n     *\n     * The `videojs()` function returns a {@link Player} instance.\n     *\n     * @namespace\n     *\n     * @borrows AudioTrack as AudioTrack\n     * @borrows Component.getComponent as getComponent\n     * @borrows module:events.on as on\n     * @borrows module:events.one as one\n     * @borrows module:events.off as off\n     * @borrows module:events.trigger as trigger\n     * @borrows EventTarget as EventTarget\n     * @borrows module:middleware.use as use\n     * @borrows Player.players as players\n     * @borrows Plugin.registerPlugin as registerPlugin\n     * @borrows Plugin.deregisterPlugin as deregisterPlugin\n     * @borrows Plugin.getPlugins as getPlugins\n     * @borrows Plugin.getPlugin as getPlugin\n     * @borrows Plugin.getPluginVersion as getPluginVersion\n     * @borrows Tech.getTech as getTech\n     * @borrows Tech.registerTech as registerTech\n     * @borrows TextTrack as TextTrack\n     * @borrows VideoTrack as VideoTrack\n     *\n     * @param  {string|Element} id\n     *         Video element or video element ID.\n     *\n     * @param  {Object} [options]\n     *         Options object for providing settings.\n     *         See: [Options Guide](https://docs.videojs.com/tutorial-options.html).\n     *\n     * @param  {ReadyCallback} [ready]\n     *         A function to be called when the {@link Player} and {@link Tech} are\n     *         ready.\n     *\n     * @return {Player}\n     *         The `videojs()` function returns a {@link Player|Player} instance.\n     */\n    function videojs(id, options, ready) {\n        let player = videojs.getPlayer(id);\n        if (player) {\n            if (options) {\n                log$1.warn(`Player \"${id}\" is already initialised. Options will not be applied.`);\n            }\n            if (ready) {\n                player.ready(ready);\n            }\n            return player;\n        }\n        const el = typeof id === 'string' ? $('#' + normalizeId(id)) : id;\n        if (!isEl(el)) {\n            throw new TypeError('The element or ID supplied is not valid. (videojs)');\n        }\n\n        // document.body.contains(el) will only check if el is contained within that one document.\n        // This causes problems for elements in iframes.\n        // Instead, use the element's ownerDocument instead of the global document.\n        // This will make sure that the element is indeed in the dom of that document.\n        // Additionally, check that the document in question has a default view.\n        // If the document is no longer attached to the dom, the defaultView of the document will be null.\n        if (!el.ownerDocument.defaultView || !el.ownerDocument.body.contains(el)) {\n            log$1.warn('The element supplied is not included in the DOM');\n        }\n        options = options || {};\n\n        // Store a copy of the el before modification, if it is to be restored in destroy()\n        // If div ingest, store the parent div\n        if (options.restoreEl === true) {\n            options.restoreEl = (el.parentNode && el.parentNode.hasAttribute('data-vjs-player') ? el.parentNode : el).cloneNode(true);\n        }\n        hooks('beforesetup').forEach(hookFunction => {\n            const opts = hookFunction(el, merge$2(options));\n            if (!isObject$1(opts) || Array.isArray(opts)) {\n                log$1.error('please return an object in beforesetup hooks');\n                return;\n            }\n            options = merge$2(options, opts);\n        });\n\n        // We get the current \"Player\" component here in case an integration has\n        // replaced it with a custom player.\n        const PlayerComponent = Component$1.getComponent('Player');\n        player = new PlayerComponent(el, options, ready);\n        hooks('setup').forEach(hookFunction => hookFunction(player));\n        return player;\n    }\n    videojs.hooks_ = hooks_;\n    videojs.hooks = hooks;\n    videojs.hook = hook;\n    videojs.hookOnce = hookOnce;\n    videojs.removeHook = removeHook;\n\n    // Add default styles\n    if (window.VIDEOJS_NO_DYNAMIC_STYLE !== true && isReal()) {\n        let style = $('.vjs-styles-defaults');\n        if (!style) {\n            style = createStyleElement('vjs-styles-defaults');\n            const head = $('head');\n            if (head) {\n                head.insertBefore(style, head.firstChild);\n            }\n            setTextContent(style, `\n      .video-js {\n        width: 300px;\n        height: 150px;\n      }\n\n      .vjs-fluid:not(.vjs-audio-only-mode) {\n        padding-top: 56.25%\n      }\n    `);\n        }\n    }\n\n    // Run Auto-load players\n    // You have to wait at least once in case this script is loaded after your\n    // video in the DOM (weird behavior only with minified version)\n    autoSetupTimeout(1, videojs);\n\n    /**\n     * Current Video.js version. Follows [semantic versioning](https://semver.org/).\n     *\n     * @type {string}\n     */\n    videojs.VERSION = version$5;\n\n    /**\n     * The global options object. These are the settings that take effect\n     * if no overrides are specified when the player is created.\n     *\n     * @type {Object}\n     */\n    videojs.options = Player.prototype.options_;\n\n    /**\n     * Get an object with the currently created players, keyed by player ID\n     *\n     * @return {Object}\n     *         The created players\n     */\n    videojs.getPlayers = () => Player.players;\n\n    /**\n     * Get a single player based on an ID or DOM element.\n     *\n     * This is useful if you want to check if an element or ID has an associated\n     * Video.js player, but not create one if it doesn't.\n     *\n     * @param   {string|Element} id\n     *          An HTML element - `<video>`, `<audio>`, or `<video-js>` -\n     *          or a string matching the `id` of such an element.\n     *\n     * @return {Player|undefined}\n     *          A player instance or `undefined` if there is no player instance\n     *          matching the argument.\n     */\n    videojs.getPlayer = id => {\n        const players = Player.players;\n        let tag;\n        if (typeof id === 'string') {\n            const nId = normalizeId(id);\n            const player = players[nId];\n            if (player) {\n                return player;\n            }\n            tag = $('#' + nId);\n        } else {\n            tag = id;\n        }\n        if (isEl(tag)) {\n            const {\n                player,\n                playerId\n            } = tag;\n\n            // Element may have a `player` property referring to an already created\n            // player instance. If so, return that.\n            if (player || players[playerId]) {\n                return player || players[playerId];\n            }\n        }\n    };\n\n    /**\n     * Returns an array of all current players.\n     *\n     * @return {Array}\n     *         An array of all players. The array will be in the order that\n     *         `Object.keys` provides, which could potentially vary between\n     *         JavaScript engines.\n     *\n     */\n    videojs.getAllPlayers = () =>\n        // Disposed players leave a key with a `null` value, so we need to make sure\n        // we filter those out.\n        Object.keys(Player.players).map(k => Player.players[k]).filter(Boolean);\n    videojs.players = Player.players;\n    videojs.getComponent = Component$1.getComponent;\n\n    /**\n     * Register a component so it can referred to by name. Used when adding to other\n     * components, either through addChild `component.addChild('myComponent')` or through\n     * default children options  `{ children: ['myComponent'] }`.\n     *\n     * > NOTE: You could also just initialize the component before adding.\n     * `component.addChild(new MyComponent());`\n     *\n     * @param {string} name\n     *        The class name of the component\n     *\n     * @param {Component} comp\n     *        The component class\n     *\n     * @return {Component}\n     *         The newly registered component\n     */\n    videojs.registerComponent = (name, comp) => {\n        if (Tech.isTech(comp)) {\n            log$1.warn(`The ${name} tech was registered as a component. It should instead be registered using videojs.registerTech(name, tech)`);\n        }\n        Component$1.registerComponent.call(Component$1, name, comp);\n    };\n    videojs.getTech = Tech.getTech;\n    videojs.registerTech = Tech.registerTech;\n    videojs.use = use;\n\n    /**\n     * An object that can be returned by a middleware to signify\n     * that the middleware is being terminated.\n     *\n     * @type {object}\n     * @property {object} middleware.TERMINATOR\n     */\n    Object.defineProperty(videojs, 'middleware', {\n        value: {},\n        writeable: false,\n        enumerable: true\n    });\n    Object.defineProperty(videojs.middleware, 'TERMINATOR', {\n        value: TERMINATOR,\n        writeable: false,\n        enumerable: true\n    });\n\n    /**\n     * A reference to the {@link module:browser|browser utility module} as an object.\n     *\n     * @type {Object}\n     * @see  {@link module:browser|browser}\n     */\n    videojs.browser = browser;\n\n    /**\n     * A reference to the {@link module:obj|obj utility module} as an object.\n     *\n     * @type {Object}\n     * @see  {@link module:obj|obj}\n     */\n    videojs.obj = Obj;\n\n    /**\n     * Deprecated reference to the {@link module:obj.merge|merge function}\n     *\n     * @type {Function}\n     * @see {@link module:obj.merge|merge}\n     * @deprecated Deprecated and will be removed in 9.0. Please use videojs.obj.merge instead.\n     */\n    videojs.mergeOptions = deprecateForMajor(9, 'videojs.mergeOptions', 'videojs.obj.merge', merge$2);\n\n    /**\n     * Deprecated reference to the {@link module:obj.defineLazyProperty|defineLazyProperty function}\n     *\n     * @type {Function}\n     * @see {@link module:obj.defineLazyProperty|defineLazyProperty}\n     * @deprecated Deprecated and will be removed in 9.0. Please use videojs.obj.defineLazyProperty instead.\n     */\n    videojs.defineLazyProperty = deprecateForMajor(9, 'videojs.defineLazyProperty', 'videojs.obj.defineLazyProperty', defineLazyProperty);\n\n    /**\n     * Deprecated reference to the {@link module:fn.bind_|fn.bind_ function}\n     *\n     * @type {Function}\n     * @see {@link module:fn.bind_|fn.bind_}\n     * @deprecated Deprecated and will be removed in 9.0. Please use native Function.prototype.bind instead.\n     */\n    videojs.bind = deprecateForMajor(9, 'videojs.bind', 'native Function.prototype.bind', bind_);\n    videojs.registerPlugin = Plugin.registerPlugin;\n    videojs.deregisterPlugin = Plugin.deregisterPlugin;\n\n    /**\n     * Deprecated method to register a plugin with Video.js\n     *\n     * @deprecated Deprecated and will be removed in 9.0. Use videojs.registerPlugin() instead.\n     *\n     * @param {string} name\n     *        The plugin name\n     *\n     * @param {Plugin|Function} plugin\n     *         The plugin sub-class or function\n     */\n    videojs.plugin = (name, plugin) => {\n        log$1.warn('videojs.plugin() is deprecated; use videojs.registerPlugin() instead');\n        return Plugin.registerPlugin(name, plugin);\n    };\n    videojs.getPlugins = Plugin.getPlugins;\n    videojs.getPlugin = Plugin.getPlugin;\n    videojs.getPluginVersion = Plugin.getPluginVersion;\n\n    /**\n     * Adding languages so that they're available to all players.\n     * Example: `videojs.addLanguage('es', { 'Hello': 'Hola' });`\n     *\n     * @param {string} code\n     *        The language code or dictionary property\n     *\n     * @param {Object} data\n     *        The data values to be translated\n     *\n     * @return {Object}\n     *         The resulting language dictionary object\n     */\n    videojs.addLanguage = function (code, data) {\n        code = ('' + code).toLowerCase();\n        videojs.options.languages = merge$2(videojs.options.languages, {\n            [code]: data\n        });\n        return videojs.options.languages[code];\n    };\n\n    /**\n     * A reference to the {@link module:log|log utility module} as an object.\n     *\n     * @type {Function}\n     * @see  {@link module:log|log}\n     */\n    videojs.log = log$1;\n    videojs.createLogger = createLogger;\n\n    /**\n     * A reference to the {@link module:time|time utility module} as an object.\n     *\n     * @type {Object}\n     * @see {@link module:time|time}\n     */\n    videojs.time = Time;\n\n    /**\n     * Deprecated reference to the {@link module:time.createTimeRanges|createTimeRanges function}\n     *\n     * @type {Function}\n     * @see {@link module:time.createTimeRanges|createTimeRanges}\n     * @deprecated Deprecated and will be removed in 9.0. Please use videojs.time.createTimeRanges instead.\n     */\n    videojs.createTimeRange = deprecateForMajor(9, 'videojs.createTimeRange', 'videojs.time.createTimeRanges', createTimeRanges$1);\n\n    /**\n     * Deprecated reference to the {@link module:time.createTimeRanges|createTimeRanges function}\n     *\n     * @type {Function}\n     * @see {@link module:time.createTimeRanges|createTimeRanges}\n     * @deprecated Deprecated and will be removed in 9.0. Please use videojs.time.createTimeRanges instead.\n     */\n    videojs.createTimeRanges = deprecateForMajor(9, 'videojs.createTimeRanges', 'videojs.time.createTimeRanges', createTimeRanges$1);\n\n    /**\n     * Deprecated reference to the {@link module:time.formatTime|formatTime function}\n     *\n     * @type {Function}\n     * @see {@link module:time.formatTime|formatTime}\n     * @deprecated Deprecated and will be removed in 9.0. Please use videojs.time.format instead.\n     */\n    videojs.formatTime = deprecateForMajor(9, 'videojs.formatTime', 'videojs.time.formatTime', formatTime);\n\n    /**\n     * Deprecated reference to the {@link module:time.setFormatTime|setFormatTime function}\n     *\n     * @type {Function}\n     * @see {@link module:time.setFormatTime|setFormatTime}\n     * @deprecated Deprecated and will be removed in 9.0. Please use videojs.time.setFormat instead.\n     */\n    videojs.setFormatTime = deprecateForMajor(9, 'videojs.setFormatTime', 'videojs.time.setFormatTime', setFormatTime);\n\n    /**\n     * Deprecated reference to the {@link module:time.resetFormatTime|resetFormatTime function}\n     *\n     * @type {Function}\n     * @see {@link module:time.resetFormatTime|resetFormatTime}\n     * @deprecated Deprecated and will be removed in 9.0. Please use videojs.time.resetFormat instead.\n     */\n    videojs.resetFormatTime = deprecateForMajor(9, 'videojs.resetFormatTime', 'videojs.time.resetFormatTime', resetFormatTime);\n\n    /**\n     * Deprecated reference to the {@link module:url.parseUrl|Url.parseUrl function}\n     *\n     * @type {Function}\n     * @see {@link module:url.parseUrl|parseUrl}\n     * @deprecated Deprecated and will be removed in 9.0. Please use videojs.url.parseUrl instead.\n     */\n    videojs.parseUrl = deprecateForMajor(9, 'videojs.parseUrl', 'videojs.url.parseUrl', parseUrl);\n\n    /**\n     * Deprecated reference to the {@link module:url.isCrossOrigin|Url.isCrossOrigin function}\n     *\n     * @type {Function}\n     * @see {@link module:url.isCrossOrigin|isCrossOrigin}\n     * @deprecated Deprecated and will be removed in 9.0. Please use videojs.url.isCrossOrigin instead.\n     */\n    videojs.isCrossOrigin = deprecateForMajor(9, 'videojs.isCrossOrigin', 'videojs.url.isCrossOrigin', isCrossOrigin);\n    videojs.EventTarget = EventTarget$2;\n    videojs.any = any;\n    videojs.on = on;\n    videojs.one = one;\n    videojs.off = off;\n    videojs.trigger = trigger;\n\n    /**\n     * A cross-browser XMLHttpRequest wrapper.\n     *\n     * @function\n     * @param    {Object} options\n     *           Settings for the request.\n     *\n     * @return   {XMLHttpRequest|XDomainRequest}\n     *           The request object.\n     *\n     * @see      https://github.com/Raynos/xhr\n     */\n    videojs.xhr = lib;\n    videojs.TextTrack = TextTrack;\n    videojs.AudioTrack = AudioTrack;\n    videojs.VideoTrack = VideoTrack;\n    ['isEl', 'isTextNode', 'createEl', 'hasClass', 'addClass', 'removeClass', 'toggleClass', 'setAttributes', 'getAttributes', 'emptyEl', 'appendContent', 'insertContent'].forEach(k => {\n        videojs[k] = function () {\n            log$1.warn(`videojs.${k}() is deprecated; use videojs.dom.${k}() instead`);\n            return Dom[k].apply(null, arguments);\n        };\n    });\n    videojs.computedStyle = deprecateForMajor(9, 'videojs.computedStyle', 'videojs.dom.computedStyle', computedStyle);\n\n    /**\n     * A reference to the {@link module:dom|DOM utility module} as an object.\n     *\n     * @type {Object}\n     * @see {@link module:dom|dom}\n     */\n    videojs.dom = Dom;\n\n    /**\n     * A reference to the {@link module:fn|fn utility module} as an object.\n     *\n     * @type {Object}\n     * @see {@link module:fn|fn}\n     */\n    videojs.fn = Fn;\n\n    /**\n     * A reference to the {@link module:num|num utility module} as an object.\n     *\n     * @type {Object}\n     * @see {@link module:num|num}\n     */\n    videojs.num = Num;\n\n    /**\n     * A reference to the {@link module:str|str utility module} as an object.\n     *\n     * @type {Object}\n     * @see {@link module:str|str}\n     */\n    videojs.str = Str;\n\n    /**\n     * A reference to the {@link module:url|URL utility module} as an object.\n     *\n     * @type {Object}\n     * @see {@link module:url|url}\n     */\n    videojs.url = Url;\n\n    createCommonjsModule(function (module, exports) {\n        /*! @name videojs-contrib-quality-levels @version 3.0.0 @license Apache-2.0 */\n        (function (global, factory) {\n            module.exports = factory(videojs) ;\n        })(commonjsGlobal, function (videojs) {\n\n            function _interopDefaultLegacy(e) {\n                return e && typeof e === 'object' && 'default' in e ? e : {\n                    'default': e\n                };\n            }\n            var videojs__default = /*#__PURE__*/_interopDefaultLegacy(videojs);\n\n            /**\n             * A single QualityLevel.\n             *\n             * interface QualityLevel {\n             *   readonly attribute DOMString id;\n             *            attribute DOMString label;\n             *   readonly attribute long width;\n             *   readonly attribute long height;\n             *   readonly attribute long bitrate;\n             *            attribute boolean enabled;\n             * };\n             *\n             * @class QualityLevel\n             */\n            class QualityLevel {\n                /**\n                 * Creates a QualityLevel\n                 *\n                 * @param {Representation|Object} representation The representation of the quality level\n                 * @param {string}   representation.id        Unique id of the QualityLevel\n                 * @param {number=}  representation.width     Resolution width of the QualityLevel\n                 * @param {number=}  representation.height    Resolution height of the QualityLevel\n                 * @param {number}   representation.bandwidth Bitrate of the QualityLevel\n                 * @param {number=}  representation.frameRate Frame-rate of the QualityLevel\n                 * @param {Function} representation.enabled   Callback to enable/disable QualityLevel\n                 */\n                constructor(representation) {\n                    let level = this; // eslint-disable-line\n\n                    level.id = representation.id;\n                    level.label = level.id;\n                    level.width = representation.width;\n                    level.height = representation.height;\n                    level.bitrate = representation.bandwidth;\n                    level.frameRate = representation.frameRate;\n                    level.enabled_ = representation.enabled;\n                    Object.defineProperty(level, 'enabled', {\n                        /**\n                         * Get whether the QualityLevel is enabled.\n                         *\n                         * @return {boolean} True if the QualityLevel is enabled.\n                         */\n                        get() {\n                            return level.enabled_();\n                        },\n                        /**\n                         * Enable or disable the QualityLevel.\n                         *\n                         * @param {boolean} enable true to enable QualityLevel, false to disable.\n                         */\n                        set(enable) {\n                            level.enabled_(enable);\n                        }\n                    });\n                    return level;\n                }\n            }\n\n            /**\n             * A list of QualityLevels.\n             *\n             * interface QualityLevelList : EventTarget {\n             *   getter QualityLevel (unsigned long index);\n             *   readonly attribute unsigned long length;\n             *   readonly attribute long selectedIndex;\n             *\n             *   void addQualityLevel(QualityLevel qualityLevel)\n             *   void removeQualityLevel(QualityLevel remove)\n             *   QualityLevel? getQualityLevelById(DOMString id);\n             *\n             *   attribute EventHandler onchange;\n             *   attribute EventHandler onaddqualitylevel;\n             *   attribute EventHandler onremovequalitylevel;\n             * };\n             *\n             * @extends videojs.EventTarget\n             * @class QualityLevelList\n             */\n\n            class QualityLevelList extends videojs__default['default'].EventTarget {\n                constructor() {\n                    super();\n                    let list = this; // eslint-disable-line\n\n                    list.levels_ = [];\n                    list.selectedIndex_ = -1;\n                    /**\n                     * Get the index of the currently selected QualityLevel.\n                     *\n                     * @returns {number} The index of the selected QualityLevel. -1 if none selected.\n                     * @readonly\n                     */\n\n                    Object.defineProperty(list, 'selectedIndex', {\n                        get() {\n                            return list.selectedIndex_;\n                        }\n                    });\n                    /**\n                     * Get the length of the list of QualityLevels.\n                     *\n                     * @returns {number} The length of the list.\n                     * @readonly\n                     */\n\n                    Object.defineProperty(list, 'length', {\n                        get() {\n                            return list.levels_.length;\n                        }\n                    });\n                    return list;\n                }\n                /**\n                 * Adds a quality level to the list.\n                 *\n                 * @param {Representation|Object} representation The representation of the quality level\n                 * @param {string}   representation.id        Unique id of the QualityLevel\n                 * @param {number=}  representation.width     Resolution width of the QualityLevel\n                 * @param {number=}  representation.height    Resolution height of the QualityLevel\n                 * @param {number}   representation.bandwidth Bitrate of the QualityLevel\n                 * @param {number=}  representation.frameRate Frame-rate of the QualityLevel\n                 * @param {Function} representation.enabled   Callback to enable/disable QualityLevel\n                 * @return {QualityLevel} the QualityLevel added to the list\n                 * @method addQualityLevel\n                 */\n\n                addQualityLevel(representation) {\n                    let qualityLevel = this.getQualityLevelById(representation.id); // Do not add duplicate quality levels\n\n                    if (qualityLevel) {\n                        return qualityLevel;\n                    }\n                    const index = this.levels_.length;\n                    qualityLevel = new QualityLevel(representation);\n                    if (!('' + index in this)) {\n                        Object.defineProperty(this, index, {\n                            get() {\n                                return this.levels_[index];\n                            }\n                        });\n                    }\n                    this.levels_.push(qualityLevel);\n                    this.trigger({\n                        qualityLevel,\n                        type: 'addqualitylevel'\n                    });\n                    return qualityLevel;\n                }\n                /**\n                 * Removes a quality level from the list.\n                 *\n                 * @param {QualityLevel} remove QualityLevel to remove to the list.\n                 * @return {QualityLevel|null} the QualityLevel removed or null if nothing removed\n                 * @method removeQualityLevel\n                 */\n\n                removeQualityLevel(qualityLevel) {\n                    let removed = null;\n                    for (let i = 0, l = this.length; i < l; i++) {\n                        if (this[i] === qualityLevel) {\n                            removed = this.levels_.splice(i, 1)[0];\n                            if (this.selectedIndex_ === i) {\n                                this.selectedIndex_ = -1;\n                            } else if (this.selectedIndex_ > i) {\n                                this.selectedIndex_--;\n                            }\n                            break;\n                        }\n                    }\n                    if (removed) {\n                        this.trigger({\n                            qualityLevel,\n                            type: 'removequalitylevel'\n                        });\n                    }\n                    return removed;\n                }\n                /**\n                 * Searches for a QualityLevel with the given id.\n                 *\n                 * @param {string} id The id of the QualityLevel to find.\n                 * @return {QualityLevel|null} The QualityLevel with id, or null if not found.\n                 * @method getQualityLevelById\n                 */\n\n                getQualityLevelById(id) {\n                    for (let i = 0, l = this.length; i < l; i++) {\n                        const level = this[i];\n                        if (level.id === id) {\n                            return level;\n                        }\n                    }\n                    return null;\n                }\n                /**\n                 * Resets the list of QualityLevels to empty\n                 *\n                 * @method dispose\n                 */\n\n                dispose() {\n                    this.selectedIndex_ = -1;\n                    this.levels_.length = 0;\n                }\n            }\n            /**\n             * change - The selected QualityLevel has changed.\n             * addqualitylevel - A QualityLevel has been added to the QualityLevelList.\n             * removequalitylevel - A QualityLevel has been removed from the QualityLevelList.\n             */\n\n            QualityLevelList.prototype.allowedEvents_ = {\n                change: 'change',\n                addqualitylevel: 'addqualitylevel',\n                removequalitylevel: 'removequalitylevel'\n            }; // emulate attribute EventHandler support to allow for feature detection\n\n            for (const event in QualityLevelList.prototype.allowedEvents_) {\n                QualityLevelList.prototype['on' + event] = null;\n            }\n            var version = \"3.0.0\";\n            const registerPlugin = videojs__default['default'].registerPlugin || videojs__default['default'].plugin;\n            /**\n             * Initialization function for the qualityLevels plugin. Sets up the QualityLevelList and\n             * event handlers.\n             *\n             * @param {Player} player Player object.\n             * @param {Object} options Plugin options object.\n             * @function initPlugin\n             */\n\n            const initPlugin = function (player, options) {\n                const originalPluginFn = player.qualityLevels;\n                const qualityLevelList = new QualityLevelList();\n                const disposeHandler = function () {\n                    qualityLevelList.dispose();\n                    player.qualityLevels = originalPluginFn;\n                    player.off('dispose', disposeHandler);\n                };\n                player.on('dispose', disposeHandler);\n                player.qualityLevels = () => qualityLevelList;\n                player.qualityLevels.VERSION = version;\n                return qualityLevelList;\n            };\n            /**\n             * A video.js plugin.\n             *\n             * In the plugin function, the value of `this` is a video.js `Player`\n             * instance. You cannot rely on the player being in a \"ready\" state here,\n             * depending on how the plugin is invoked. This may or may not be important\n             * to you; if not, remove the wait for \"ready\"!\n             *\n             * @param {Object} options Plugin options object\n             * @function qualityLevels\n             */\n\n            const qualityLevels = function (options) {\n                return initPlugin(this, videojs__default['default'].mergeOptions({}, options));\n            }; // Register the plugin with video.js.\n\n            registerPlugin('qualityLevels', qualityLevels); // Include the version number.\n\n            qualityLevels.VERSION = version;\n            return qualityLevels;\n        });\n    });\n\n    var urlToolkit = createCommonjsModule(function (module, exports) {\n        // see https://tools.ietf.org/html/rfc1808\n\n        (function (root) {\n            var URL_REGEX = /^(?=((?:[a-zA-Z0-9+\\-.]+:)?))\\1(?=((?:\\/\\/[^\\/?#]*)?))\\2(?=((?:(?:[^?#\\/]*\\/)*[^;?#\\/]*)?))\\3((?:;[^?#]*)?)(\\?[^#]*)?(#[^]*)?$/;\n            var FIRST_SEGMENT_REGEX = /^(?=([^\\/?#]*))\\1([^]*)$/;\n            var SLASH_DOT_REGEX = /(?:\\/|^)\\.(?=\\/)/g;\n            var SLASH_DOT_DOT_REGEX = /(?:\\/|^)\\.\\.\\/(?!\\.\\.\\/)[^\\/]*(?=\\/)/g;\n            var URLToolkit = {\n                // If opts.alwaysNormalize is true then the path will always be normalized even when it starts with / or //\n                // E.g\n                // With opts.alwaysNormalize = false (default, spec compliant)\n                // http://a.com/b/cd + /e/f/../g => http://a.com/e/f/../g\n                // With opts.alwaysNormalize = true (not spec compliant)\n                // http://a.com/b/cd + /e/f/../g => http://a.com/e/g\n                buildAbsoluteURL: function (baseURL, relativeURL, opts) {\n                    opts = opts || {};\n                    // remove any remaining space and CRLF\n                    baseURL = baseURL.trim();\n                    relativeURL = relativeURL.trim();\n                    if (!relativeURL) {\n                        // 2a) If the embedded URL is entirely empty, it inherits the\n                        // entire base URL (i.e., is set equal to the base URL)\n                        // and we are done.\n                        if (!opts.alwaysNormalize) {\n                            return baseURL;\n                        }\n                        var basePartsForNormalise = URLToolkit.parseURL(baseURL);\n                        if (!basePartsForNormalise) {\n                            throw new Error('Error trying to parse base URL.');\n                        }\n                        basePartsForNormalise.path = URLToolkit.normalizePath(basePartsForNormalise.path);\n                        return URLToolkit.buildURLFromParts(basePartsForNormalise);\n                    }\n                    var relativeParts = URLToolkit.parseURL(relativeURL);\n                    if (!relativeParts) {\n                        throw new Error('Error trying to parse relative URL.');\n                    }\n                    if (relativeParts.scheme) {\n                        // 2b) If the embedded URL starts with a scheme name, it is\n                        // interpreted as an absolute URL and we are done.\n                        if (!opts.alwaysNormalize) {\n                            return relativeURL;\n                        }\n                        relativeParts.path = URLToolkit.normalizePath(relativeParts.path);\n                        return URLToolkit.buildURLFromParts(relativeParts);\n                    }\n                    var baseParts = URLToolkit.parseURL(baseURL);\n                    if (!baseParts) {\n                        throw new Error('Error trying to parse base URL.');\n                    }\n                    if (!baseParts.netLoc && baseParts.path && baseParts.path[0] !== '/') {\n                        // If netLoc missing and path doesn't start with '/', assume everthing before the first '/' is the netLoc\n                        // This causes 'example.com/a' to be handled as '//example.com/a' instead of '/example.com/a'\n                        var pathParts = FIRST_SEGMENT_REGEX.exec(baseParts.path);\n                        baseParts.netLoc = pathParts[1];\n                        baseParts.path = pathParts[2];\n                    }\n                    if (baseParts.netLoc && !baseParts.path) {\n                        baseParts.path = '/';\n                    }\n                    var builtParts = {\n                        // 2c) Otherwise, the embedded URL inherits the scheme of\n                        // the base URL.\n                        scheme: baseParts.scheme,\n                        netLoc: relativeParts.netLoc,\n                        path: null,\n                        params: relativeParts.params,\n                        query: relativeParts.query,\n                        fragment: relativeParts.fragment\n                    };\n                    if (!relativeParts.netLoc) {\n                        // 3) If the embedded URL's <net_loc> is non-empty, we skip to\n                        // Step 7.  Otherwise, the embedded URL inherits the <net_loc>\n                        // (if any) of the base URL.\n                        builtParts.netLoc = baseParts.netLoc;\n                        // 4) If the embedded URL path is preceded by a slash \"/\", the\n                        // path is not relative and we skip to Step 7.\n                        if (relativeParts.path[0] !== '/') {\n                            if (!relativeParts.path) {\n                                // 5) If the embedded URL path is empty (and not preceded by a\n                                // slash), then the embedded URL inherits the base URL path\n                                builtParts.path = baseParts.path;\n                                // 5a) if the embedded URL's <params> is non-empty, we skip to\n                                // step 7; otherwise, it inherits the <params> of the base\n                                // URL (if any) and\n                                if (!relativeParts.params) {\n                                    builtParts.params = baseParts.params;\n                                    // 5b) if the embedded URL's <query> is non-empty, we skip to\n                                    // step 7; otherwise, it inherits the <query> of the base\n                                    // URL (if any) and we skip to step 7.\n                                    if (!relativeParts.query) {\n                                        builtParts.query = baseParts.query;\n                                    }\n                                }\n                            } else {\n                                // 6) The last segment of the base URL's path (anything\n                                // following the rightmost slash \"/\", or the entire path if no\n                                // slash is present) is removed and the embedded URL's path is\n                                // appended in its place.\n                                var baseURLPath = baseParts.path;\n                                var newPath = baseURLPath.substring(0, baseURLPath.lastIndexOf('/') + 1) + relativeParts.path;\n                                builtParts.path = URLToolkit.normalizePath(newPath);\n                            }\n                        }\n                    }\n                    if (builtParts.path === null) {\n                        builtParts.path = opts.alwaysNormalize ? URLToolkit.normalizePath(relativeParts.path) : relativeParts.path;\n                    }\n                    return URLToolkit.buildURLFromParts(builtParts);\n                },\n                parseURL: function (url) {\n                    var parts = URL_REGEX.exec(url);\n                    if (!parts) {\n                        return null;\n                    }\n                    return {\n                        scheme: parts[1] || '',\n                        netLoc: parts[2] || '',\n                        path: parts[3] || '',\n                        params: parts[4] || '',\n                        query: parts[5] || '',\n                        fragment: parts[6] || ''\n                    };\n                },\n                normalizePath: function (path) {\n                    // The following operations are\n                    // then applied, in order, to the new path:\n                    // 6a) All occurrences of \"./\", where \".\" is a complete path\n                    // segment, are removed.\n                    // 6b) If the path ends with \".\" as a complete path segment,\n                    // that \".\" is removed.\n                    path = path.split('').reverse().join('').replace(SLASH_DOT_REGEX, '');\n                    // 6c) All occurrences of \"<segment>/../\", where <segment> is a\n                    // complete path segment not equal to \"..\", are removed.\n                    // Removal of these path segments is performed iteratively,\n                    // removing the leftmost matching pattern on each iteration,\n                    // until no matching pattern remains.\n                    // 6d) If the path ends with \"<segment>/..\", where <segment> is a\n                    // complete path segment not equal to \"..\", that\n                    // \"<segment>/..\" is removed.\n                    while (path.length !== (path = path.replace(SLASH_DOT_DOT_REGEX, '')).length) {}\n                    return path.split('').reverse().join('');\n                },\n                buildURLFromParts: function (parts) {\n                    return parts.scheme + parts.netLoc + parts.path + parts.params + parts.query + parts.fragment;\n                }\n            };\n            module.exports = URLToolkit;\n        })();\n    });\n\n    var DEFAULT_LOCATION$1 = 'http://example.com';\n    var resolveUrl$2 = function resolveUrl(baseUrl, relativeUrl) {\n        // return early if we don't need to resolve\n        if (/^[a-z]+:/i.test(relativeUrl)) {\n            return relativeUrl;\n        } // if baseUrl is a data URI, ignore it and resolve everything relative to window.location\n\n        if (/^data:/.test(baseUrl)) {\n            baseUrl = window.location && window.location.href || '';\n        } // IE11 supports URL but not the URL constructor\n        // feature detect the behavior we want\n\n        var nativeURL = typeof window.URL === 'function';\n        var protocolLess = /^\\/\\//.test(baseUrl); // remove location if window.location isn't available (i.e. we're in node)\n        // and if baseUrl isn't an absolute url\n\n        var removeLocation = !window.location && !/\\/\\//i.test(baseUrl); // if the base URL is relative then combine with the current location\n\n        if (nativeURL) {\n            baseUrl = new window.URL(baseUrl, window.location || DEFAULT_LOCATION$1);\n        } else if (!/\\/\\//i.test(baseUrl)) {\n            baseUrl = urlToolkit.buildAbsoluteURL(window.location && window.location.href || '', baseUrl);\n        }\n        if (nativeURL) {\n            var newUrl = new URL(relativeUrl, baseUrl); // if we're a protocol-less url, remove the protocol\n            // and if we're location-less, remove the location\n            // otherwise, return the url unmodified\n\n            if (removeLocation) {\n                return newUrl.href.slice(DEFAULT_LOCATION$1.length);\n            } else if (protocolLess) {\n                return newUrl.href.slice(newUrl.protocol.length);\n            }\n            return newUrl.href;\n        }\n        return urlToolkit.buildAbsoluteURL(baseUrl, relativeUrl);\n    };\n\n    /**\n     * @file stream.js\n     */\n\n    /**\n     * A lightweight readable stream implemention that handles event dispatching.\n     *\n     * @class Stream\n     */\n    var Stream = /*#__PURE__*/function () {\n        function Stream() {\n            this.listeners = {};\n        }\n        /**\n         * Add a listener for a specified event type.\n         *\n         * @param {string} type the event name\n         * @param {Function} listener the callback to be invoked when an event of\n         * the specified type occurs\n         */\n\n        var _proto = Stream.prototype;\n        _proto.on = function on(type, listener) {\n            if (!this.listeners[type]) {\n                this.listeners[type] = [];\n            }\n            this.listeners[type].push(listener);\n        }\n        /**\n         * Remove a listener for a specified event type.\n         *\n         * @param {string} type the event name\n         * @param {Function} listener  a function previously registered for this\n         * type of event through `on`\n         * @return {boolean} if we could turn it off or not\n         */;\n\n        _proto.off = function off(type, listener) {\n            if (!this.listeners[type]) {\n                return false;\n            }\n            var index = this.listeners[type].indexOf(listener); // TODO: which is better?\n            // In Video.js we slice listener functions\n            // on trigger so that it does not mess up the order\n            // while we loop through.\n            //\n            // Here we slice on off so that the loop in trigger\n            // can continue using it's old reference to loop without\n            // messing up the order.\n\n            this.listeners[type] = this.listeners[type].slice(0);\n            this.listeners[type].splice(index, 1);\n            return index > -1;\n        }\n        /**\n         * Trigger an event of the specified type on this stream. Any additional\n         * arguments to this function are passed as parameters to event listeners.\n         *\n         * @param {string} type the event name\n         */;\n\n        _proto.trigger = function trigger(type) {\n            var callbacks = this.listeners[type];\n            if (!callbacks) {\n                return;\n            } // Slicing the arguments on every invocation of this method\n            // can add a significant amount of overhead. Avoid the\n            // intermediate object creation for the common case of a\n            // single callback argument\n\n            if (arguments.length === 2) {\n                var length = callbacks.length;\n                for (var i = 0; i < length; ++i) {\n                    callbacks[i].call(this, arguments[1]);\n                }\n            } else {\n                var args = Array.prototype.slice.call(arguments, 1);\n                var _length = callbacks.length;\n                for (var _i = 0; _i < _length; ++_i) {\n                    callbacks[_i].apply(this, args);\n                }\n            }\n        }\n        /**\n         * Destroys the stream and cleans up.\n         */;\n\n        _proto.dispose = function dispose() {\n            this.listeners = {};\n        }\n        /**\n         * Forwards all `data` events on this stream to the destination stream. The\n         * destination stream should provide a method `push` to receive the data\n         * events as they arrive.\n         *\n         * @param {Stream} destination the stream that will receive all `data` events\n         * @see http://nodejs.org/api/stream.html#stream_readable_pipe_destination_options\n         */;\n\n        _proto.pipe = function pipe(destination) {\n            this.on('data', function (data) {\n                destination.push(data);\n            });\n        };\n        return Stream;\n    }();\n\n    var atob$1 = function atob(s) {\n        return window.atob ? window.atob(s) : Buffer.from(s, 'base64').toString('binary');\n    };\n    function decodeB64ToUint8Array$1(b64Text) {\n        var decodedString = atob$1(b64Text);\n        var array = new Uint8Array(decodedString.length);\n        for (var i = 0; i < decodedString.length; i++) {\n            array[i] = decodedString.charCodeAt(i);\n        }\n        return array;\n    }\n\n    /*! @name m3u8-parser @version 6.0.0 @license Apache-2.0 */\n\n    /**\n     * @file m3u8/line-stream.js\n     */\n    /**\n     * A stream that buffers string input and generates a `data` event for each\n     * line.\n     *\n     * @class LineStream\n     * @extends Stream\n     */\n\n    class LineStream extends Stream {\n        constructor() {\n            super();\n            this.buffer = '';\n        }\n        /**\n         * Add new data to be parsed.\n         *\n         * @param {string} data the text to process\n         */\n\n        push(data) {\n            let nextNewline;\n            this.buffer += data;\n            nextNewline = this.buffer.indexOf('\\n');\n            for (; nextNewline > -1; nextNewline = this.buffer.indexOf('\\n')) {\n                this.trigger('data', this.buffer.substring(0, nextNewline));\n                this.buffer = this.buffer.substring(nextNewline + 1);\n            }\n        }\n    }\n    const TAB = String.fromCharCode(0x09);\n    const parseByterange = function (byterangeString) {\n        // optionally match and capture 0+ digits before `@`\n        // optionally match and capture 0+ digits after `@`\n        const match = /([0-9.]*)?@?([0-9.]*)?/.exec(byterangeString || '');\n        const result = {};\n        if (match[1]) {\n            result.length = parseInt(match[1], 10);\n        }\n        if (match[2]) {\n            result.offset = parseInt(match[2], 10);\n        }\n        return result;\n    };\n    /**\n     * \"forgiving\" attribute list psuedo-grammar:\n     * attributes -> keyvalue (',' keyvalue)*\n     * keyvalue   -> key '=' value\n     * key        -> [^=]*\n     * value      -> '\"' [^\"]* '\"' | [^,]*\n     */\n\n    const attributeSeparator = function () {\n        const key = '[^=]*';\n        const value = '\"[^\"]*\"|[^,]*';\n        const keyvalue = '(?:' + key + ')=(?:' + value + ')';\n        return new RegExp('(?:^|,)(' + keyvalue + ')');\n    };\n    /**\n     * Parse attributes from a line given the separator\n     *\n     * @param {string} attributes the attribute line to parse\n     */\n\n    const parseAttributes$1 = function (attributes) {\n        const result = {};\n        if (!attributes) {\n            return result;\n        } // split the string using attributes as the separator\n\n        const attrs = attributes.split(attributeSeparator());\n        let i = attrs.length;\n        let attr;\n        while (i--) {\n            // filter out unmatched portions of the string\n            if (attrs[i] === '') {\n                continue;\n            } // split the key and value\n\n            attr = /([^=]*)=(.*)/.exec(attrs[i]).slice(1); // trim whitespace and remove optional quotes around the value\n\n            attr[0] = attr[0].replace(/^\\s+|\\s+$/g, '');\n            attr[1] = attr[1].replace(/^\\s+|\\s+$/g, '');\n            attr[1] = attr[1].replace(/^['\"](.*)['\"]$/g, '$1');\n            result[attr[0]] = attr[1];\n        }\n        return result;\n    };\n    /**\n     * A line-level M3U8 parser event stream. It expects to receive input one\n     * line at a time and performs a context-free parse of its contents. A stream\n     * interpretation of a manifest can be useful if the manifest is expected to\n     * be too large to fit comfortably into memory or the entirety of the input\n     * is not immediately available. Otherwise, it's probably much easier to work\n     * with a regular `Parser` object.\n     *\n     * Produces `data` events with an object that captures the parser's\n     * interpretation of the input. That object has a property `tag` that is one\n     * of `uri`, `comment`, or `tag`. URIs only have a single additional\n     * property, `line`, which captures the entirety of the input without\n     * interpretation. Comments similarly have a single additional property\n     * `text` which is the input without the leading `#`.\n     *\n     * Tags always have a property `tagType` which is the lower-cased version of\n     * the M3U8 directive without the `#EXT` or `#EXT-X-` prefix. For instance,\n     * `#EXT-X-MEDIA-SEQUENCE` becomes `media-sequence` when parsed. Unrecognized\n     * tags are given the tag type `unknown` and a single additional property\n     * `data` with the remainder of the input.\n     *\n     * @class ParseStream\n     * @extends Stream\n     */\n\n    class ParseStream extends Stream {\n        constructor() {\n            super();\n            this.customParsers = [];\n            this.tagMappers = [];\n        }\n        /**\n         * Parses an additional line of input.\n         *\n         * @param {string} line a single line of an M3U8 file to parse\n         */\n\n        push(line) {\n            let match;\n            let event; // strip whitespace\n\n            line = line.trim();\n            if (line.length === 0) {\n                // ignore empty lines\n                return;\n            } // URIs\n\n            if (line[0] !== '#') {\n                this.trigger('data', {\n                    type: 'uri',\n                    uri: line\n                });\n                return;\n            } // map tags\n\n            const newLines = this.tagMappers.reduce((acc, mapper) => {\n                const mappedLine = mapper(line); // skip if unchanged\n\n                if (mappedLine === line) {\n                    return acc;\n                }\n                return acc.concat([mappedLine]);\n            }, [line]);\n            newLines.forEach(newLine => {\n                for (let i = 0; i < this.customParsers.length; i++) {\n                    if (this.customParsers[i].call(this, newLine)) {\n                        return;\n                    }\n                } // Comments\n\n                if (newLine.indexOf('#EXT') !== 0) {\n                    this.trigger('data', {\n                        type: 'comment',\n                        text: newLine.slice(1)\n                    });\n                    return;\n                } // strip off any carriage returns here so the regex matching\n                // doesn't have to account for them.\n\n                newLine = newLine.replace('\\r', ''); // Tags\n\n                match = /^#EXTM3U/.exec(newLine);\n                if (match) {\n                    this.trigger('data', {\n                        type: 'tag',\n                        tagType: 'm3u'\n                    });\n                    return;\n                }\n                match = /^#EXTINF:([0-9\\.]*)?,?(.*)?$/.exec(newLine);\n                if (match) {\n                    event = {\n                        type: 'tag',\n                        tagType: 'inf'\n                    };\n                    if (match[1]) {\n                        event.duration = parseFloat(match[1]);\n                    }\n                    if (match[2]) {\n                        event.title = match[2];\n                    }\n                    this.trigger('data', event);\n                    return;\n                }\n                match = /^#EXT-X-TARGETDURATION:([0-9.]*)?/.exec(newLine);\n                if (match) {\n                    event = {\n                        type: 'tag',\n                        tagType: 'targetduration'\n                    };\n                    if (match[1]) {\n                        event.duration = parseInt(match[1], 10);\n                    }\n                    this.trigger('data', event);\n                    return;\n                }\n                match = /^#EXT-X-VERSION:([0-9.]*)?/.exec(newLine);\n                if (match) {\n                    event = {\n                        type: 'tag',\n                        tagType: 'version'\n                    };\n                    if (match[1]) {\n                        event.version = parseInt(match[1], 10);\n                    }\n                    this.trigger('data', event);\n                    return;\n                }\n                match = /^#EXT-X-MEDIA-SEQUENCE:(\\-?[0-9.]*)?/.exec(newLine);\n                if (match) {\n                    event = {\n                        type: 'tag',\n                        tagType: 'media-sequence'\n                    };\n                    if (match[1]) {\n                        event.number = parseInt(match[1], 10);\n                    }\n                    this.trigger('data', event);\n                    return;\n                }\n                match = /^#EXT-X-DISCONTINUITY-SEQUENCE:(\\-?[0-9.]*)?/.exec(newLine);\n                if (match) {\n                    event = {\n                        type: 'tag',\n                        tagType: 'discontinuity-sequence'\n                    };\n                    if (match[1]) {\n                        event.number = parseInt(match[1], 10);\n                    }\n                    this.trigger('data', event);\n                    return;\n                }\n                match = /^#EXT-X-PLAYLIST-TYPE:(.*)?$/.exec(newLine);\n                if (match) {\n                    event = {\n                        type: 'tag',\n                        tagType: 'playlist-type'\n                    };\n                    if (match[1]) {\n                        event.playlistType = match[1];\n                    }\n                    this.trigger('data', event);\n                    return;\n                }\n                match = /^#EXT-X-BYTERANGE:(.*)?$/.exec(newLine);\n                if (match) {\n                    event = _extends$1(parseByterange(match[1]), {\n                        type: 'tag',\n                        tagType: 'byterange'\n                    });\n                    this.trigger('data', event);\n                    return;\n                }\n                match = /^#EXT-X-ALLOW-CACHE:(YES|NO)?/.exec(newLine);\n                if (match) {\n                    event = {\n                        type: 'tag',\n                        tagType: 'allow-cache'\n                    };\n                    if (match[1]) {\n                        event.allowed = !/NO/.test(match[1]);\n                    }\n                    this.trigger('data', event);\n                    return;\n                }\n                match = /^#EXT-X-MAP:(.*)$/.exec(newLine);\n                if (match) {\n                    event = {\n                        type: 'tag',\n                        tagType: 'map'\n                    };\n                    if (match[1]) {\n                        const attributes = parseAttributes$1(match[1]);\n                        if (attributes.URI) {\n                            event.uri = attributes.URI;\n                        }\n                        if (attributes.BYTERANGE) {\n                            event.byterange = parseByterange(attributes.BYTERANGE);\n                        }\n                    }\n                    this.trigger('data', event);\n                    return;\n                }\n                match = /^#EXT-X-STREAM-INF:(.*)$/.exec(newLine);\n                if (match) {\n                    event = {\n                        type: 'tag',\n                        tagType: 'stream-inf'\n                    };\n                    if (match[1]) {\n                        event.attributes = parseAttributes$1(match[1]);\n                        if (event.attributes.RESOLUTION) {\n                            const split = event.attributes.RESOLUTION.split('x');\n                            const resolution = {};\n                            if (split[0]) {\n                                resolution.width = parseInt(split[0], 10);\n                            }\n                            if (split[1]) {\n                                resolution.height = parseInt(split[1], 10);\n                            }\n                            event.attributes.RESOLUTION = resolution;\n                        }\n                        if (event.attributes.BANDWIDTH) {\n                            event.attributes.BANDWIDTH = parseInt(event.attributes.BANDWIDTH, 10);\n                        }\n                        if (event.attributes['FRAME-RATE']) {\n                            event.attributes['FRAME-RATE'] = parseFloat(event.attributes['FRAME-RATE']);\n                        }\n                        if (event.attributes['PROGRAM-ID']) {\n                            event.attributes['PROGRAM-ID'] = parseInt(event.attributes['PROGRAM-ID'], 10);\n                        }\n                    }\n                    this.trigger('data', event);\n                    return;\n                }\n                match = /^#EXT-X-MEDIA:(.*)$/.exec(newLine);\n                if (match) {\n                    event = {\n                        type: 'tag',\n                        tagType: 'media'\n                    };\n                    if (match[1]) {\n                        event.attributes = parseAttributes$1(match[1]);\n                    }\n                    this.trigger('data', event);\n                    return;\n                }\n                match = /^#EXT-X-ENDLIST/.exec(newLine);\n                if (match) {\n                    this.trigger('data', {\n                        type: 'tag',\n                        tagType: 'endlist'\n                    });\n                    return;\n                }\n                match = /^#EXT-X-DISCONTINUITY/.exec(newLine);\n                if (match) {\n                    this.trigger('data', {\n                        type: 'tag',\n                        tagType: 'discontinuity'\n                    });\n                    return;\n                }\n                match = /^#EXT-X-PROGRAM-DATE-TIME:(.*)$/.exec(newLine);\n                if (match) {\n                    event = {\n                        type: 'tag',\n                        tagType: 'program-date-time'\n                    };\n                    if (match[1]) {\n                        event.dateTimeString = match[1];\n                        event.dateTimeObject = new Date(match[1]);\n                    }\n                    this.trigger('data', event);\n                    return;\n                }\n                match = /^#EXT-X-KEY:(.*)$/.exec(newLine);\n                if (match) {\n                    event = {\n                        type: 'tag',\n                        tagType: 'key'\n                    };\n                    if (match[1]) {\n                        event.attributes = parseAttributes$1(match[1]); // parse the IV string into a Uint32Array\n\n                        if (event.attributes.IV) {\n                            if (event.attributes.IV.substring(0, 2).toLowerCase() === '0x') {\n                                event.attributes.IV = event.attributes.IV.substring(2);\n                            }\n                            event.attributes.IV = event.attributes.IV.match(/.{8}/g);\n                            event.attributes.IV[0] = parseInt(event.attributes.IV[0], 16);\n                            event.attributes.IV[1] = parseInt(event.attributes.IV[1], 16);\n                            event.attributes.IV[2] = parseInt(event.attributes.IV[2], 16);\n                            event.attributes.IV[3] = parseInt(event.attributes.IV[3], 16);\n                            event.attributes.IV = new Uint32Array(event.attributes.IV);\n                        }\n                    }\n                    this.trigger('data', event);\n                    return;\n                }\n                match = /^#EXT-X-START:(.*)$/.exec(newLine);\n                if (match) {\n                    event = {\n                        type: 'tag',\n                        tagType: 'start'\n                    };\n                    if (match[1]) {\n                        event.attributes = parseAttributes$1(match[1]);\n                        event.attributes['TIME-OFFSET'] = parseFloat(event.attributes['TIME-OFFSET']);\n                        event.attributes.PRECISE = /YES/.test(event.attributes.PRECISE);\n                    }\n                    this.trigger('data', event);\n                    return;\n                }\n                match = /^#EXT-X-CUE-OUT-CONT:(.*)?$/.exec(newLine);\n                if (match) {\n                    event = {\n                        type: 'tag',\n                        tagType: 'cue-out-cont'\n                    };\n                    if (match[1]) {\n                        event.data = match[1];\n                    } else {\n                        event.data = '';\n                    }\n                    this.trigger('data', event);\n                    return;\n                }\n                match = /^#EXT-X-CUE-OUT:(.*)?$/.exec(newLine);\n                if (match) {\n                    event = {\n                        type: 'tag',\n                        tagType: 'cue-out'\n                    };\n                    if (match[1]) {\n                        event.data = match[1];\n                    } else {\n                        event.data = '';\n                    }\n                    this.trigger('data', event);\n                    return;\n                }\n                match = /^#EXT-X-CUE-IN:(.*)?$/.exec(newLine);\n                if (match) {\n                    event = {\n                        type: 'tag',\n                        tagType: 'cue-in'\n                    };\n                    if (match[1]) {\n                        event.data = match[1];\n                    } else {\n                        event.data = '';\n                    }\n                    this.trigger('data', event);\n                    return;\n                }\n                match = /^#EXT-X-SKIP:(.*)$/.exec(newLine);\n                if (match && match[1]) {\n                    event = {\n                        type: 'tag',\n                        tagType: 'skip'\n                    };\n                    event.attributes = parseAttributes$1(match[1]);\n                    if (event.attributes.hasOwnProperty('SKIPPED-SEGMENTS')) {\n                        event.attributes['SKIPPED-SEGMENTS'] = parseInt(event.attributes['SKIPPED-SEGMENTS'], 10);\n                    }\n                    if (event.attributes.hasOwnProperty('RECENTLY-REMOVED-DATERANGES')) {\n                        event.attributes['RECENTLY-REMOVED-DATERANGES'] = event.attributes['RECENTLY-REMOVED-DATERANGES'].split(TAB);\n                    }\n                    this.trigger('data', event);\n                    return;\n                }\n                match = /^#EXT-X-PART:(.*)$/.exec(newLine);\n                if (match && match[1]) {\n                    event = {\n                        type: 'tag',\n                        tagType: 'part'\n                    };\n                    event.attributes = parseAttributes$1(match[1]);\n                    ['DURATION'].forEach(function (key) {\n                        if (event.attributes.hasOwnProperty(key)) {\n                            event.attributes[key] = parseFloat(event.attributes[key]);\n                        }\n                    });\n                    ['INDEPENDENT', 'GAP'].forEach(function (key) {\n                        if (event.attributes.hasOwnProperty(key)) {\n                            event.attributes[key] = /YES/.test(event.attributes[key]);\n                        }\n                    });\n                    if (event.attributes.hasOwnProperty('BYTERANGE')) {\n                        event.attributes.byterange = parseByterange(event.attributes.BYTERANGE);\n                    }\n                    this.trigger('data', event);\n                    return;\n                }\n                match = /^#EXT-X-SERVER-CONTROL:(.*)$/.exec(newLine);\n                if (match && match[1]) {\n                    event = {\n                        type: 'tag',\n                        tagType: 'server-control'\n                    };\n                    event.attributes = parseAttributes$1(match[1]);\n                    ['CAN-SKIP-UNTIL', 'PART-HOLD-BACK', 'HOLD-BACK'].forEach(function (key) {\n                        if (event.attributes.hasOwnProperty(key)) {\n                            event.attributes[key] = parseFloat(event.attributes[key]);\n                        }\n                    });\n                    ['CAN-SKIP-DATERANGES', 'CAN-BLOCK-RELOAD'].forEach(function (key) {\n                        if (event.attributes.hasOwnProperty(key)) {\n                            event.attributes[key] = /YES/.test(event.attributes[key]);\n                        }\n                    });\n                    this.trigger('data', event);\n                    return;\n                }\n                match = /^#EXT-X-PART-INF:(.*)$/.exec(newLine);\n                if (match && match[1]) {\n                    event = {\n                        type: 'tag',\n                        tagType: 'part-inf'\n                    };\n                    event.attributes = parseAttributes$1(match[1]);\n                    ['PART-TARGET'].forEach(function (key) {\n                        if (event.attributes.hasOwnProperty(key)) {\n                            event.attributes[key] = parseFloat(event.attributes[key]);\n                        }\n                    });\n                    this.trigger('data', event);\n                    return;\n                }\n                match = /^#EXT-X-PRELOAD-HINT:(.*)$/.exec(newLine);\n                if (match && match[1]) {\n                    event = {\n                        type: 'tag',\n                        tagType: 'preload-hint'\n                    };\n                    event.attributes = parseAttributes$1(match[1]);\n                    ['BYTERANGE-START', 'BYTERANGE-LENGTH'].forEach(function (key) {\n                        if (event.attributes.hasOwnProperty(key)) {\n                            event.attributes[key] = parseInt(event.attributes[key], 10);\n                            const subkey = key === 'BYTERANGE-LENGTH' ? 'length' : 'offset';\n                            event.attributes.byterange = event.attributes.byterange || {};\n                            event.attributes.byterange[subkey] = event.attributes[key]; // only keep the parsed byterange object.\n\n                            delete event.attributes[key];\n                        }\n                    });\n                    this.trigger('data', event);\n                    return;\n                }\n                match = /^#EXT-X-RENDITION-REPORT:(.*)$/.exec(newLine);\n                if (match && match[1]) {\n                    event = {\n                        type: 'tag',\n                        tagType: 'rendition-report'\n                    };\n                    event.attributes = parseAttributes$1(match[1]);\n                    ['LAST-MSN', 'LAST-PART'].forEach(function (key) {\n                        if (event.attributes.hasOwnProperty(key)) {\n                            event.attributes[key] = parseInt(event.attributes[key], 10);\n                        }\n                    });\n                    this.trigger('data', event);\n                    return;\n                } // unknown tag type\n\n                this.trigger('data', {\n                    type: 'tag',\n                    data: newLine.slice(4)\n                });\n            });\n        }\n        /**\n         * Add a parser for custom headers\n         *\n         * @param {Object}   options              a map of options for the added parser\n         * @param {RegExp}   options.expression   a regular expression to match the custom header\n         * @param {string}   options.customType   the custom type to register to the output\n         * @param {Function} [options.dataParser] function to parse the line into an object\n         * @param {boolean}  [options.segment]    should tag data be attached to the segment object\n         */\n\n        addParser({\n                      expression,\n                      customType,\n                      dataParser,\n                      segment\n                  }) {\n            if (typeof dataParser !== 'function') {\n                dataParser = line => line;\n            }\n            this.customParsers.push(line => {\n                const match = expression.exec(line);\n                if (match) {\n                    this.trigger('data', {\n                        type: 'custom',\n                        data: dataParser(line),\n                        customType,\n                        segment\n                    });\n                    return true;\n                }\n            });\n        }\n        /**\n         * Add a custom header mapper\n         *\n         * @param {Object}   options\n         * @param {RegExp}   options.expression   a regular expression to match the custom header\n         * @param {Function} options.map          function to translate tag into a different tag\n         */\n\n        addTagMapper({\n                         expression,\n                         map\n                     }) {\n            const mapFn = line => {\n                if (expression.test(line)) {\n                    return map(line);\n                }\n                return line;\n            };\n            this.tagMappers.push(mapFn);\n        }\n    }\n    const camelCase = str => str.toLowerCase().replace(/-(\\w)/g, a => a[1].toUpperCase());\n    const camelCaseKeys = function (attributes) {\n        const result = {};\n        Object.keys(attributes).forEach(function (key) {\n            result[camelCase(key)] = attributes[key];\n        });\n        return result;\n    }; // set SERVER-CONTROL hold back based upon targetDuration and partTargetDuration\n    // we need this helper because defaults are based upon targetDuration and\n    // partTargetDuration being set, but they may not be if SERVER-CONTROL appears before\n    // target durations are set.\n\n    const setHoldBack = function (manifest) {\n        const {\n            serverControl,\n            targetDuration,\n            partTargetDuration\n        } = manifest;\n        if (!serverControl) {\n            return;\n        }\n        const tag = '#EXT-X-SERVER-CONTROL';\n        const hb = 'holdBack';\n        const phb = 'partHoldBack';\n        const minTargetDuration = targetDuration && targetDuration * 3;\n        const minPartDuration = partTargetDuration && partTargetDuration * 2;\n        if (targetDuration && !serverControl.hasOwnProperty(hb)) {\n            serverControl[hb] = minTargetDuration;\n            this.trigger('info', {\n                message: `${tag} defaulting HOLD-BACK to targetDuration * 3 (${minTargetDuration}).`\n            });\n        }\n        if (minTargetDuration && serverControl[hb] < minTargetDuration) {\n            this.trigger('warn', {\n                message: `${tag} clamping HOLD-BACK (${serverControl[hb]}) to targetDuration * 3 (${minTargetDuration})`\n            });\n            serverControl[hb] = minTargetDuration;\n        } // default no part hold back to part target duration * 3\n\n        if (partTargetDuration && !serverControl.hasOwnProperty(phb)) {\n            serverControl[phb] = partTargetDuration * 3;\n            this.trigger('info', {\n                message: `${tag} defaulting PART-HOLD-BACK to partTargetDuration * 3 (${serverControl[phb]}).`\n            });\n        } // if part hold back is too small default it to part target duration * 2\n\n        if (partTargetDuration && serverControl[phb] < minPartDuration) {\n            this.trigger('warn', {\n                message: `${tag} clamping PART-HOLD-BACK (${serverControl[phb]}) to partTargetDuration * 2 (${minPartDuration}).`\n            });\n            serverControl[phb] = minPartDuration;\n        }\n    };\n    /**\n     * A parser for M3U8 files. The current interpretation of the input is\n     * exposed as a property `manifest` on parser objects. It's just two lines to\n     * create and parse a manifest once you have the contents available as a string:\n     *\n     * ```js\n     * var parser = new m3u8.Parser();\n     * parser.push(xhr.responseText);\n     * ```\n     *\n     * New input can later be applied to update the manifest object by calling\n     * `push` again.\n     *\n     * The parser attempts to create a usable manifest object even if the\n     * underlying input is somewhat nonsensical. It emits `info` and `warning`\n     * events during the parse if it encounters input that seems invalid or\n     * requires some property of the manifest object to be defaulted.\n     *\n     * @class Parser\n     * @extends Stream\n     */\n\n    class Parser extends Stream {\n        constructor() {\n            super();\n            this.lineStream = new LineStream();\n            this.parseStream = new ParseStream();\n            this.lineStream.pipe(this.parseStream);\n            /* eslint-disable consistent-this */\n\n            const self = this;\n            /* eslint-enable consistent-this */\n\n            const uris = [];\n            let currentUri = {}; // if specified, the active EXT-X-MAP definition\n\n            let currentMap; // if specified, the active decryption key\n\n            let key;\n            let hasParts = false;\n            const noop = function () {};\n            const defaultMediaGroups = {\n                'AUDIO': {},\n                'VIDEO': {},\n                'CLOSED-CAPTIONS': {},\n                'SUBTITLES': {}\n            }; // This is the Widevine UUID from DASH IF IOP. The same exact string is\n            // used in MPDs with Widevine encrypted streams.\n\n            const widevineUuid = 'urn:uuid:edef8ba9-79d6-4ace-a3c8-27dcd51d21ed'; // group segments into numbered timelines delineated by discontinuities\n\n            let currentTimeline = 0; // the manifest is empty until the parse stream begins delivering data\n\n            this.manifest = {\n                allowCache: true,\n                discontinuityStarts: [],\n                segments: []\n            }; // keep track of the last seen segment's byte range end, as segments are not required\n            // to provide the offset, in which case it defaults to the next byte after the\n            // previous segment\n\n            let lastByterangeEnd = 0; // keep track of the last seen part's byte range end.\n\n            let lastPartByterangeEnd = 0;\n            this.on('end', () => {\n                // only add preloadSegment if we don't yet have a uri for it.\n                // and we actually have parts/preloadHints\n                if (currentUri.uri || !currentUri.parts && !currentUri.preloadHints) {\n                    return;\n                }\n                if (!currentUri.map && currentMap) {\n                    currentUri.map = currentMap;\n                }\n                if (!currentUri.key && key) {\n                    currentUri.key = key;\n                }\n                if (!currentUri.timeline && typeof currentTimeline === 'number') {\n                    currentUri.timeline = currentTimeline;\n                }\n                this.manifest.preloadSegment = currentUri;\n            }); // update the manifest with the m3u8 entry from the parse stream\n\n            this.parseStream.on('data', function (entry) {\n                let mediaGroup;\n                let rendition;\n                ({\n                    tag() {\n                        // switch based on the tag type\n                        (({\n                            version() {\n                                if (entry.version) {\n                                    this.manifest.version = entry.version;\n                                }\n                            },\n                            'allow-cache'() {\n                                this.manifest.allowCache = entry.allowed;\n                                if (!('allowed' in entry)) {\n                                    this.trigger('info', {\n                                        message: 'defaulting allowCache to YES'\n                                    });\n                                    this.manifest.allowCache = true;\n                                }\n                            },\n                            byterange() {\n                                const byterange = {};\n                                if ('length' in entry) {\n                                    currentUri.byterange = byterange;\n                                    byterange.length = entry.length;\n                                    if (!('offset' in entry)) {\n                                        /*\n                     * From the latest spec (as of this writing):\n                     * https://tools.ietf.org/html/draft-pantos-http-live-streaming-23#section-4.3.2.2\n                     *\n                     * Same text since EXT-X-BYTERANGE's introduction in draft 7:\n                     * https://tools.ietf.org/html/draft-pantos-http-live-streaming-07#section-3.3.1)\n                     *\n                     * \"If o [offset] is not present, the sub-range begins at the next byte\n                     * following the sub-range of the previous media segment.\"\n                     */\n                                        entry.offset = lastByterangeEnd;\n                                    }\n                                }\n                                if ('offset' in entry) {\n                                    currentUri.byterange = byterange;\n                                    byterange.offset = entry.offset;\n                                }\n                                lastByterangeEnd = byterange.offset + byterange.length;\n                            },\n                            endlist() {\n                                this.manifest.endList = true;\n                            },\n                            inf() {\n                                if (!('mediaSequence' in this.manifest)) {\n                                    this.manifest.mediaSequence = 0;\n                                    this.trigger('info', {\n                                        message: 'defaulting media sequence to zero'\n                                    });\n                                }\n                                if (!('discontinuitySequence' in this.manifest)) {\n                                    this.manifest.discontinuitySequence = 0;\n                                    this.trigger('info', {\n                                        message: 'defaulting discontinuity sequence to zero'\n                                    });\n                                }\n                                if (entry.duration > 0) {\n                                    currentUri.duration = entry.duration;\n                                }\n                                if (entry.duration === 0) {\n                                    currentUri.duration = 0.01;\n                                    this.trigger('info', {\n                                        message: 'updating zero segment duration to a small value'\n                                    });\n                                }\n                                this.manifest.segments = uris;\n                            },\n                            key() {\n                                if (!entry.attributes) {\n                                    this.trigger('warn', {\n                                        message: 'ignoring key declaration without attribute list'\n                                    });\n                                    return;\n                                } // clear the active encryption key\n\n                                if (entry.attributes.METHOD === 'NONE') {\n                                    key = null;\n                                    return;\n                                }\n                                if (!entry.attributes.URI) {\n                                    this.trigger('warn', {\n                                        message: 'ignoring key declaration without URI'\n                                    });\n                                    return;\n                                }\n                                if (entry.attributes.KEYFORMAT === 'com.apple.streamingkeydelivery') {\n                                    this.manifest.contentProtection = this.manifest.contentProtection || {}; // TODO: add full support for this.\n\n                                    this.manifest.contentProtection['com.apple.fps.1_0'] = {\n                                        attributes: entry.attributes\n                                    };\n                                    return;\n                                }\n                                if (entry.attributes.KEYFORMAT === 'com.microsoft.playready') {\n                                    this.manifest.contentProtection = this.manifest.contentProtection || {}; // TODO: add full support for this.\n\n                                    this.manifest.contentProtection['com.microsoft.playready'] = {\n                                        uri: entry.attributes.URI\n                                    };\n                                    return;\n                                } // check if the content is encrypted for Widevine\n                                // Widevine/HLS spec: https://storage.googleapis.com/wvdocs/Widevine_DRM_HLS.pdf\n\n                                if (entry.attributes.KEYFORMAT === widevineUuid) {\n                                    const VALID_METHODS = ['SAMPLE-AES', 'SAMPLE-AES-CTR', 'SAMPLE-AES-CENC'];\n                                    if (VALID_METHODS.indexOf(entry.attributes.METHOD) === -1) {\n                                        this.trigger('warn', {\n                                            message: 'invalid key method provided for Widevine'\n                                        });\n                                        return;\n                                    }\n                                    if (entry.attributes.METHOD === 'SAMPLE-AES-CENC') {\n                                        this.trigger('warn', {\n                                            message: 'SAMPLE-AES-CENC is deprecated, please use SAMPLE-AES-CTR instead'\n                                        });\n                                    }\n                                    if (entry.attributes.URI.substring(0, 23) !== 'data:text/plain;base64,') {\n                                        this.trigger('warn', {\n                                            message: 'invalid key URI provided for Widevine'\n                                        });\n                                        return;\n                                    }\n                                    if (!(entry.attributes.KEYID && entry.attributes.KEYID.substring(0, 2) === '0x')) {\n                                        this.trigger('warn', {\n                                            message: 'invalid key ID provided for Widevine'\n                                        });\n                                        return;\n                                    } // if Widevine key attributes are valid, store them as `contentProtection`\n                                    // on the manifest to emulate Widevine tag structure in a DASH mpd\n\n                                    this.manifest.contentProtection = this.manifest.contentProtection || {};\n                                    this.manifest.contentProtection['com.widevine.alpha'] = {\n                                        attributes: {\n                                            schemeIdUri: entry.attributes.KEYFORMAT,\n                                            // remove '0x' from the key id string\n                                            keyId: entry.attributes.KEYID.substring(2)\n                                        },\n                                        // decode the base64-encoded PSSH box\n                                        pssh: decodeB64ToUint8Array$1(entry.attributes.URI.split(',')[1])\n                                    };\n                                    return;\n                                }\n                                if (!entry.attributes.METHOD) {\n                                    this.trigger('warn', {\n                                        message: 'defaulting key method to AES-128'\n                                    });\n                                } // setup an encryption key for upcoming segments\n\n                                key = {\n                                    method: entry.attributes.METHOD || 'AES-128',\n                                    uri: entry.attributes.URI\n                                };\n                                if (typeof entry.attributes.IV !== 'undefined') {\n                                    key.iv = entry.attributes.IV;\n                                }\n                            },\n                            'media-sequence'() {\n                                if (!isFinite(entry.number)) {\n                                    this.trigger('warn', {\n                                        message: 'ignoring invalid media sequence: ' + entry.number\n                                    });\n                                    return;\n                                }\n                                this.manifest.mediaSequence = entry.number;\n                            },\n                            'discontinuity-sequence'() {\n                                if (!isFinite(entry.number)) {\n                                    this.trigger('warn', {\n                                        message: 'ignoring invalid discontinuity sequence: ' + entry.number\n                                    });\n                                    return;\n                                }\n                                this.manifest.discontinuitySequence = entry.number;\n                                currentTimeline = entry.number;\n                            },\n                            'playlist-type'() {\n                                if (!/VOD|EVENT/.test(entry.playlistType)) {\n                                    this.trigger('warn', {\n                                        message: 'ignoring unknown playlist type: ' + entry.playlist\n                                    });\n                                    return;\n                                }\n                                this.manifest.playlistType = entry.playlistType;\n                            },\n                            map() {\n                                currentMap = {};\n                                if (entry.uri) {\n                                    currentMap.uri = entry.uri;\n                                }\n                                if (entry.byterange) {\n                                    currentMap.byterange = entry.byterange;\n                                }\n                                if (key) {\n                                    currentMap.key = key;\n                                }\n                            },\n                            'stream-inf'() {\n                                this.manifest.playlists = uris;\n                                this.manifest.mediaGroups = this.manifest.mediaGroups || defaultMediaGroups;\n                                if (!entry.attributes) {\n                                    this.trigger('warn', {\n                                        message: 'ignoring empty stream-inf attributes'\n                                    });\n                                    return;\n                                }\n                                if (!currentUri.attributes) {\n                                    currentUri.attributes = {};\n                                }\n                                _extends$1(currentUri.attributes, entry.attributes);\n                            },\n                            media() {\n                                this.manifest.mediaGroups = this.manifest.mediaGroups || defaultMediaGroups;\n                                if (!(entry.attributes && entry.attributes.TYPE && entry.attributes['GROUP-ID'] && entry.attributes.NAME)) {\n                                    this.trigger('warn', {\n                                        message: 'ignoring incomplete or missing media group'\n                                    });\n                                    return;\n                                } // find the media group, creating defaults as necessary\n\n                                const mediaGroupType = this.manifest.mediaGroups[entry.attributes.TYPE];\n                                mediaGroupType[entry.attributes['GROUP-ID']] = mediaGroupType[entry.attributes['GROUP-ID']] || {};\n                                mediaGroup = mediaGroupType[entry.attributes['GROUP-ID']]; // collect the rendition metadata\n\n                                rendition = {\n                                    default: /yes/i.test(entry.attributes.DEFAULT)\n                                };\n                                if (rendition.default) {\n                                    rendition.autoselect = true;\n                                } else {\n                                    rendition.autoselect = /yes/i.test(entry.attributes.AUTOSELECT);\n                                }\n                                if (entry.attributes.LANGUAGE) {\n                                    rendition.language = entry.attributes.LANGUAGE;\n                                }\n                                if (entry.attributes.URI) {\n                                    rendition.uri = entry.attributes.URI;\n                                }\n                                if (entry.attributes['INSTREAM-ID']) {\n                                    rendition.instreamId = entry.attributes['INSTREAM-ID'];\n                                }\n                                if (entry.attributes.CHARACTERISTICS) {\n                                    rendition.characteristics = entry.attributes.CHARACTERISTICS;\n                                }\n                                if (entry.attributes.FORCED) {\n                                    rendition.forced = /yes/i.test(entry.attributes.FORCED);\n                                } // insert the new rendition\n\n                                mediaGroup[entry.attributes.NAME] = rendition;\n                            },\n                            discontinuity() {\n                                currentTimeline += 1;\n                                currentUri.discontinuity = true;\n                                this.manifest.discontinuityStarts.push(uris.length);\n                            },\n                            'program-date-time'() {\n                                if (typeof this.manifest.dateTimeString === 'undefined') {\n                                    // PROGRAM-DATE-TIME is a media-segment tag, but for backwards\n                                    // compatibility, we add the first occurence of the PROGRAM-DATE-TIME tag\n                                    // to the manifest object\n                                    // TODO: Consider removing this in future major version\n                                    this.manifest.dateTimeString = entry.dateTimeString;\n                                    this.manifest.dateTimeObject = entry.dateTimeObject;\n                                }\n                                currentUri.dateTimeString = entry.dateTimeString;\n                                currentUri.dateTimeObject = entry.dateTimeObject;\n                            },\n                            targetduration() {\n                                if (!isFinite(entry.duration) || entry.duration < 0) {\n                                    this.trigger('warn', {\n                                        message: 'ignoring invalid target duration: ' + entry.duration\n                                    });\n                                    return;\n                                }\n                                this.manifest.targetDuration = entry.duration;\n                                setHoldBack.call(this, this.manifest);\n                            },\n                            start() {\n                                if (!entry.attributes || isNaN(entry.attributes['TIME-OFFSET'])) {\n                                    this.trigger('warn', {\n                                        message: 'ignoring start declaration without appropriate attribute list'\n                                    });\n                                    return;\n                                }\n                                this.manifest.start = {\n                                    timeOffset: entry.attributes['TIME-OFFSET'],\n                                    precise: entry.attributes.PRECISE\n                                };\n                            },\n                            'cue-out'() {\n                                currentUri.cueOut = entry.data;\n                            },\n                            'cue-out-cont'() {\n                                currentUri.cueOutCont = entry.data;\n                            },\n                            'cue-in'() {\n                                currentUri.cueIn = entry.data;\n                            },\n                            'skip'() {\n                                this.manifest.skip = camelCaseKeys(entry.attributes);\n                                this.warnOnMissingAttributes_('#EXT-X-SKIP', entry.attributes, ['SKIPPED-SEGMENTS']);\n                            },\n                            'part'() {\n                                hasParts = true; // parts are always specifed before a segment\n\n                                const segmentIndex = this.manifest.segments.length;\n                                const part = camelCaseKeys(entry.attributes);\n                                currentUri.parts = currentUri.parts || [];\n                                currentUri.parts.push(part);\n                                if (part.byterange) {\n                                    if (!part.byterange.hasOwnProperty('offset')) {\n                                        part.byterange.offset = lastPartByterangeEnd;\n                                    }\n                                    lastPartByterangeEnd = part.byterange.offset + part.byterange.length;\n                                }\n                                const partIndex = currentUri.parts.length - 1;\n                                this.warnOnMissingAttributes_(`#EXT-X-PART #${partIndex} for segment #${segmentIndex}`, entry.attributes, ['URI', 'DURATION']);\n                                if (this.manifest.renditionReports) {\n                                    this.manifest.renditionReports.forEach((r, i) => {\n                                        if (!r.hasOwnProperty('lastPart')) {\n                                            this.trigger('warn', {\n                                                message: `#EXT-X-RENDITION-REPORT #${i} lacks required attribute(s): LAST-PART`\n                                            });\n                                        }\n                                    });\n                                }\n                            },\n                            'server-control'() {\n                                const attrs = this.manifest.serverControl = camelCaseKeys(entry.attributes);\n                                if (!attrs.hasOwnProperty('canBlockReload')) {\n                                    attrs.canBlockReload = false;\n                                    this.trigger('info', {\n                                        message: '#EXT-X-SERVER-CONTROL defaulting CAN-BLOCK-RELOAD to false'\n                                    });\n                                }\n                                setHoldBack.call(this, this.manifest);\n                                if (attrs.canSkipDateranges && !attrs.hasOwnProperty('canSkipUntil')) {\n                                    this.trigger('warn', {\n                                        message: '#EXT-X-SERVER-CONTROL lacks required attribute CAN-SKIP-UNTIL which is required when CAN-SKIP-DATERANGES is set'\n                                    });\n                                }\n                            },\n                            'preload-hint'() {\n                                // parts are always specifed before a segment\n                                const segmentIndex = this.manifest.segments.length;\n                                const hint = camelCaseKeys(entry.attributes);\n                                const isPart = hint.type && hint.type === 'PART';\n                                currentUri.preloadHints = currentUri.preloadHints || [];\n                                currentUri.preloadHints.push(hint);\n                                if (hint.byterange) {\n                                    if (!hint.byterange.hasOwnProperty('offset')) {\n                                        // use last part byterange end or zero if not a part.\n                                        hint.byterange.offset = isPart ? lastPartByterangeEnd : 0;\n                                        if (isPart) {\n                                            lastPartByterangeEnd = hint.byterange.offset + hint.byterange.length;\n                                        }\n                                    }\n                                }\n                                const index = currentUri.preloadHints.length - 1;\n                                this.warnOnMissingAttributes_(`#EXT-X-PRELOAD-HINT #${index} for segment #${segmentIndex}`, entry.attributes, ['TYPE', 'URI']);\n                                if (!hint.type) {\n                                    return;\n                                } // search through all preload hints except for the current one for\n                                // a duplicate type.\n\n                                for (let i = 0; i < currentUri.preloadHints.length - 1; i++) {\n                                    const otherHint = currentUri.preloadHints[i];\n                                    if (!otherHint.type) {\n                                        continue;\n                                    }\n                                    if (otherHint.type === hint.type) {\n                                        this.trigger('warn', {\n                                            message: `#EXT-X-PRELOAD-HINT #${index} for segment #${segmentIndex} has the same TYPE ${hint.type} as preload hint #${i}`\n                                        });\n                                    }\n                                }\n                            },\n                            'rendition-report'() {\n                                const report = camelCaseKeys(entry.attributes);\n                                this.manifest.renditionReports = this.manifest.renditionReports || [];\n                                this.manifest.renditionReports.push(report);\n                                const index = this.manifest.renditionReports.length - 1;\n                                const required = ['LAST-MSN', 'URI'];\n                                if (hasParts) {\n                                    required.push('LAST-PART');\n                                }\n                                this.warnOnMissingAttributes_(`#EXT-X-RENDITION-REPORT #${index}`, entry.attributes, required);\n                            },\n                            'part-inf'() {\n                                this.manifest.partInf = camelCaseKeys(entry.attributes);\n                                this.warnOnMissingAttributes_('#EXT-X-PART-INF', entry.attributes, ['PART-TARGET']);\n                                if (this.manifest.partInf.partTarget) {\n                                    this.manifest.partTargetDuration = this.manifest.partInf.partTarget;\n                                }\n                                setHoldBack.call(this, this.manifest);\n                            }\n                        })[entry.tagType] || noop).call(self);\n                    },\n                    uri() {\n                        currentUri.uri = entry.uri;\n                        uris.push(currentUri); // if no explicit duration was declared, use the target duration\n\n                        if (this.manifest.targetDuration && !('duration' in currentUri)) {\n                            this.trigger('warn', {\n                                message: 'defaulting segment duration to the target duration'\n                            });\n                            currentUri.duration = this.manifest.targetDuration;\n                        } // annotate with encryption information, if necessary\n\n                        if (key) {\n                            currentUri.key = key;\n                        }\n                        currentUri.timeline = currentTimeline; // annotate with initialization segment information, if necessary\n\n                        if (currentMap) {\n                            currentUri.map = currentMap;\n                        } // reset the last byterange end as it needs to be 0 between parts\n\n                        lastPartByterangeEnd = 0; // prepare for the next URI\n\n                        currentUri = {};\n                    },\n                    comment() {// comments are not important for playback\n                    },\n                    custom() {\n                        // if this is segment-level data attach the output to the segment\n                        if (entry.segment) {\n                            currentUri.custom = currentUri.custom || {};\n                            currentUri.custom[entry.customType] = entry.data; // if this is manifest-level data attach to the top level manifest object\n                        } else {\n                            this.manifest.custom = this.manifest.custom || {};\n                            this.manifest.custom[entry.customType] = entry.data;\n                        }\n                    }\n                })[entry.type].call(self);\n            });\n        }\n        warnOnMissingAttributes_(identifier, attributes, required) {\n            const missing = [];\n            required.forEach(function (key) {\n                if (!attributes.hasOwnProperty(key)) {\n                    missing.push(key);\n                }\n            });\n            if (missing.length) {\n                this.trigger('warn', {\n                    message: `${identifier} lacks required attribute(s): ${missing.join(', ')}`\n                });\n            }\n        }\n        /**\n         * Parse the input string and update the manifest object.\n         *\n         * @param {string} chunk a potentially incomplete portion of the manifest\n         */\n\n        push(chunk) {\n            this.lineStream.push(chunk);\n        }\n        /**\n         * Flush any remaining input. This can be handy if the last line of an M3U8\n         * manifest did not contain a trailing newline but the file has been\n         * completely received.\n         */\n\n        end() {\n            // flush any buffered input\n            this.lineStream.push('\\n');\n            this.trigger('end');\n        }\n        /**\n         * Add an additional parser for non-standard tags\n         *\n         * @param {Object}   options              a map of options for the added parser\n         * @param {RegExp}   options.expression   a regular expression to match the custom header\n         * @param {string}   options.type         the type to register to the output\n         * @param {Function} [options.dataParser] function to parse the line into an object\n         * @param {boolean}  [options.segment]    should tag data be attached to the segment object\n         */\n\n        addParser(options) {\n            this.parseStream.addParser(options);\n        }\n        /**\n         * Add a custom header mapper\n         *\n         * @param {Object}   options\n         * @param {RegExp}   options.expression   a regular expression to match the custom header\n         * @param {Function} options.map          function to translate tag into a different tag\n         */\n\n        addTagMapper(options) {\n            this.parseStream.addTagMapper(options);\n        }\n    }\n\n    var regexs = {\n        // to determine mime types\n        mp4: /^(av0?1|avc0?[1234]|vp0?9|flac|opus|mp3|mp4a|mp4v|stpp.ttml.im1t)/,\n        webm: /^(vp0?[89]|av0?1|opus|vorbis)/,\n        ogg: /^(vp0?[89]|theora|flac|opus|vorbis)/,\n        // to determine if a codec is audio or video\n        video: /^(av0?1|avc0?[1234]|vp0?[89]|hvc1|hev1|theora|mp4v)/,\n        audio: /^(mp4a|flac|vorbis|opus|ac-[34]|ec-3|alac|mp3|speex|aac)/,\n        text: /^(stpp.ttml.im1t)/,\n        // mux.js support regex\n        muxerVideo: /^(avc0?1)/,\n        muxerAudio: /^(mp4a)/,\n        // match nothing as muxer does not support text right now.\n        // there cannot never be a character before the start of a string\n        // so this matches nothing.\n        muxerText: /a^/\n    };\n    var mediaTypes = ['video', 'audio', 'text'];\n    var upperMediaTypes = ['Video', 'Audio', 'Text'];\n    /**\n     * Replace the old apple-style `avc1.<dd>.<dd>` codec string with the standard\n     * `avc1.<hhhhhh>`\n     *\n     * @param {string} codec\n     *        Codec string to translate\n     * @return {string}\n     *         The translated codec string\n     */\n\n    var translateLegacyCodec = function translateLegacyCodec(codec) {\n        if (!codec) {\n            return codec;\n        }\n        return codec.replace(/avc1\\.(\\d+)\\.(\\d+)/i, function (orig, profile, avcLevel) {\n            var profileHex = ('00' + Number(profile).toString(16)).slice(-2);\n            var avcLevelHex = ('00' + Number(avcLevel).toString(16)).slice(-2);\n            return 'avc1.' + profileHex + '00' + avcLevelHex;\n        });\n    };\n    /**\n     * @typedef {Object} ParsedCodecInfo\n     * @property {number} codecCount\n     *           Number of codecs parsed\n     * @property {string} [videoCodec]\n     *           Parsed video codec (if found)\n     * @property {string} [videoObjectTypeIndicator]\n     *           Video object type indicator (if found)\n     * @property {string|null} audioProfile\n     *           Audio profile\n     */\n\n    /**\n     * Parses a codec string to retrieve the number of codecs specified, the video codec and\n     * object type indicator, and the audio profile.\n     *\n     * @param {string} [codecString]\n     *        The codec string to parse\n     * @return {ParsedCodecInfo}\n     *         Parsed codec info\n     */\n\n    var parseCodecs = function parseCodecs(codecString) {\n        if (codecString === void 0) {\n            codecString = '';\n        }\n        var codecs = codecString.split(',');\n        var result = [];\n        codecs.forEach(function (codec) {\n            codec = codec.trim();\n            var codecType;\n            mediaTypes.forEach(function (name) {\n                var match = regexs[name].exec(codec.toLowerCase());\n                if (!match || match.length <= 1) {\n                    return;\n                }\n                codecType = name; // maintain codec case\n\n                var type = codec.substring(0, match[1].length);\n                var details = codec.replace(type, '');\n                result.push({\n                    type: type,\n                    details: details,\n                    mediaType: name\n                });\n            });\n            if (!codecType) {\n                result.push({\n                    type: codec,\n                    details: '',\n                    mediaType: 'unknown'\n                });\n            }\n        });\n        return result;\n    };\n    /**\n     * Returns a ParsedCodecInfo object for the default alternate audio playlist if there is\n     * a default alternate audio playlist for the provided audio group.\n     *\n     * @param {Object} master\n     *        The master playlist\n     * @param {string} audioGroupId\n     *        ID of the audio group for which to find the default codec info\n     * @return {ParsedCodecInfo}\n     *         Parsed codec info\n     */\n\n    var codecsFromDefault = function codecsFromDefault(master, audioGroupId) {\n        if (!master.mediaGroups.AUDIO || !audioGroupId) {\n            return null;\n        }\n        var audioGroup = master.mediaGroups.AUDIO[audioGroupId];\n        if (!audioGroup) {\n            return null;\n        }\n        for (var name in audioGroup) {\n            var audioType = audioGroup[name];\n            if (audioType.default && audioType.playlists) {\n                // codec should be the same for all playlists within the audio type\n                return parseCodecs(audioType.playlists[0].attributes.CODECS);\n            }\n        }\n        return null;\n    };\n    var isAudioCodec = function isAudioCodec(codec) {\n        if (codec === void 0) {\n            codec = '';\n        }\n        return regexs.audio.test(codec.trim().toLowerCase());\n    };\n    var isTextCodec = function isTextCodec(codec) {\n        if (codec === void 0) {\n            codec = '';\n        }\n        return regexs.text.test(codec.trim().toLowerCase());\n    };\n    var getMimeForCodec = function getMimeForCodec(codecString) {\n        if (!codecString || typeof codecString !== 'string') {\n            return;\n        }\n        var codecs = codecString.toLowerCase().split(',').map(function (c) {\n            return translateLegacyCodec(c.trim());\n        }); // default to video type\n\n        var type = 'video'; // only change to audio type if the only codec we have is\n        // audio\n\n        if (codecs.length === 1 && isAudioCodec(codecs[0])) {\n            type = 'audio';\n        } else if (codecs.length === 1 && isTextCodec(codecs[0])) {\n            // text uses application/<container> for now\n            type = 'application';\n        } // default the container to mp4\n\n        var container = 'mp4'; // every codec must be able to go into the container\n        // for that container to be the correct one\n\n        if (codecs.every(function (c) {\n            return regexs.mp4.test(c);\n        })) {\n            container = 'mp4';\n        } else if (codecs.every(function (c) {\n            return regexs.webm.test(c);\n        })) {\n            container = 'webm';\n        } else if (codecs.every(function (c) {\n            return regexs.ogg.test(c);\n        })) {\n            container = 'ogg';\n        }\n        return type + \"/\" + container + \";codecs=\\\"\" + codecString + \"\\\"\";\n    };\n    var browserSupportsCodec = function browserSupportsCodec(codecString) {\n        if (codecString === void 0) {\n            codecString = '';\n        }\n        return window.MediaSource && window.MediaSource.isTypeSupported && window.MediaSource.isTypeSupported(getMimeForCodec(codecString)) || false;\n    };\n    var muxerSupportsCodec = function muxerSupportsCodec(codecString) {\n        if (codecString === void 0) {\n            codecString = '';\n        }\n        return codecString.toLowerCase().split(',').every(function (codec) {\n            codec = codec.trim(); // any match is supported.\n\n            for (var i = 0; i < upperMediaTypes.length; i++) {\n                var type = upperMediaTypes[i];\n                if (regexs[\"muxer\" + type].test(codec)) {\n                    return true;\n                }\n            }\n            return false;\n        });\n    };\n    var DEFAULT_AUDIO_CODEC = 'mp4a.40.2';\n    var DEFAULT_VIDEO_CODEC = 'avc1.4d400d';\n\n    var MPEGURL_REGEX = /^(audio|video|application)\\/(x-|vnd\\.apple\\.)?mpegurl/i;\n    var DASH_REGEX = /^application\\/dash\\+xml/i;\n    /**\n     * Returns a string that describes the type of source based on a video source object's\n     * media type.\n     *\n     * @see {@link https://dev.w3.org/html5/pf-summary/video.html#dom-source-type|Source Type}\n     *\n     * @param {string} type\n     *        Video source object media type\n     * @return {('hls'|'dash'|'vhs-json'|null)}\n     *         VHS source type string\n     */\n\n    var simpleTypeFromSourceType = function simpleTypeFromSourceType(type) {\n        if (MPEGURL_REGEX.test(type)) {\n            return 'hls';\n        }\n        if (DASH_REGEX.test(type)) {\n            return 'dash';\n        } // Denotes the special case of a manifest object passed to http-streaming instead of a\n        // source URL.\n        //\n        // See https://en.wikipedia.org/wiki/Media_type for details on specifying media types.\n        //\n        // In this case, vnd stands for vendor, video.js for the organization, VHS for this\n        // project, and the +json suffix identifies the structure of the media type.\n\n        if (type === 'application/vnd.videojs.vhs+json') {\n            return 'vhs-json';\n        }\n        return null;\n    };\n\n    // const log2 = Math.log2 ? Math.log2 : (x) => (Math.log(x) / Math.log(2));\n    // we used to do this with log2 but BigInt does not support builtin math\n    // Math.ceil(log2(x));\n\n    var countBits = function countBits(x) {\n        return x.toString(2).length;\n    }; // count the number of whole bytes it would take to represent a number\n\n    var countBytes = function countBytes(x) {\n        return Math.ceil(countBits(x) / 8);\n    };\n    var isArrayBufferView = function isArrayBufferView(obj) {\n        if (ArrayBuffer.isView === 'function') {\n            return ArrayBuffer.isView(obj);\n        }\n        return obj && obj.buffer instanceof ArrayBuffer;\n    };\n    var isTypedArray = function isTypedArray(obj) {\n        return isArrayBufferView(obj);\n    };\n    var toUint8 = function toUint8(bytes) {\n        if (bytes instanceof Uint8Array) {\n            return bytes;\n        }\n        if (!Array.isArray(bytes) && !isTypedArray(bytes) && !(bytes instanceof ArrayBuffer)) {\n            // any non-number or NaN leads to empty uint8array\n            // eslint-disable-next-line\n            if (typeof bytes !== 'number' || typeof bytes === 'number' && bytes !== bytes) {\n                bytes = 0;\n            } else {\n                bytes = [bytes];\n            }\n        }\n        return new Uint8Array(bytes && bytes.buffer || bytes, bytes && bytes.byteOffset || 0, bytes && bytes.byteLength || 0);\n    };\n    var BigInt = window.BigInt || Number;\n    var BYTE_TABLE = [BigInt('0x1'), BigInt('0x100'), BigInt('0x10000'), BigInt('0x1000000'), BigInt('0x100000000'), BigInt('0x10000000000'), BigInt('0x1000000000000'), BigInt('0x100000000000000'), BigInt('0x10000000000000000')];\n    (function () {\n        var a = new Uint16Array([0xFFCC]);\n        var b = new Uint8Array(a.buffer, a.byteOffset, a.byteLength);\n        if (b[0] === 0xFF) {\n            return 'big';\n        }\n        if (b[0] === 0xCC) {\n            return 'little';\n        }\n        return 'unknown';\n    })();\n    var bytesToNumber = function bytesToNumber(bytes, _temp) {\n        var _ref = _temp === void 0 ? {} : _temp,\n            _ref$signed = _ref.signed,\n            signed = _ref$signed === void 0 ? false : _ref$signed,\n            _ref$le = _ref.le,\n            le = _ref$le === void 0 ? false : _ref$le;\n        bytes = toUint8(bytes);\n        var fn = le ? 'reduce' : 'reduceRight';\n        var obj = bytes[fn] ? bytes[fn] : Array.prototype[fn];\n        var number = obj.call(bytes, function (total, byte, i) {\n            var exponent = le ? i : Math.abs(i + 1 - bytes.length);\n            return total + BigInt(byte) * BYTE_TABLE[exponent];\n        }, BigInt(0));\n        if (signed) {\n            var max = BYTE_TABLE[bytes.length] / BigInt(2) - BigInt(1);\n            number = BigInt(number);\n            if (number > max) {\n                number -= max;\n                number -= max;\n                number -= BigInt(2);\n            }\n        }\n        return Number(number);\n    };\n    var numberToBytes = function numberToBytes(number, _temp2) {\n        var _ref2 = _temp2 === void 0 ? {} : _temp2,\n            _ref2$le = _ref2.le,\n            le = _ref2$le === void 0 ? false : _ref2$le;\n\n        // eslint-disable-next-line\n        if (typeof number !== 'bigint' && typeof number !== 'number' || typeof number === 'number' && number !== number) {\n            number = 0;\n        }\n        number = BigInt(number);\n        var byteCount = countBytes(number);\n        var bytes = new Uint8Array(new ArrayBuffer(byteCount));\n        for (var i = 0; i < byteCount; i++) {\n            var byteIndex = le ? i : Math.abs(i + 1 - bytes.length);\n            bytes[byteIndex] = Number(number / BYTE_TABLE[i] & BigInt(0xFF));\n            if (number < 0) {\n                bytes[byteIndex] = Math.abs(~bytes[byteIndex]);\n                bytes[byteIndex] -= i === 0 ? 1 : 2;\n            }\n        }\n        return bytes;\n    };\n    var stringToBytes = function stringToBytes(string, stringIsBytes) {\n        if (typeof string !== 'string' && string && typeof string.toString === 'function') {\n            string = string.toString();\n        }\n        if (typeof string !== 'string') {\n            return new Uint8Array();\n        } // If the string already is bytes, we don't have to do this\n        // otherwise we do this so that we split multi length characters\n        // into individual bytes\n\n        if (!stringIsBytes) {\n            string = unescape(encodeURIComponent(string));\n        }\n        var view = new Uint8Array(string.length);\n        for (var i = 0; i < string.length; i++) {\n            view[i] = string.charCodeAt(i);\n        }\n        return view;\n    };\n    var concatTypedArrays = function concatTypedArrays() {\n        for (var _len = arguments.length, buffers = new Array(_len), _key = 0; _key < _len; _key++) {\n            buffers[_key] = arguments[_key];\n        }\n        buffers = buffers.filter(function (b) {\n            return b && (b.byteLength || b.length) && typeof b !== 'string';\n        });\n        if (buffers.length <= 1) {\n            // for 0 length we will return empty uint8\n            // for 1 length we return the first uint8\n            return toUint8(buffers[0]);\n        }\n        var totalLen = buffers.reduce(function (total, buf, i) {\n            return total + (buf.byteLength || buf.length);\n        }, 0);\n        var tempBuffer = new Uint8Array(totalLen);\n        var offset = 0;\n        buffers.forEach(function (buf) {\n            buf = toUint8(buf);\n            tempBuffer.set(buf, offset);\n            offset += buf.byteLength;\n        });\n        return tempBuffer;\n    };\n    /**\n     * Check if the bytes \"b\" are contained within bytes \"a\".\n     *\n     * @param {Uint8Array|Array} a\n     *        Bytes to check in\n     *\n     * @param {Uint8Array|Array} b\n     *        Bytes to check for\n     *\n     * @param {Object} options\n     *        options\n     *\n     * @param {Array|Uint8Array} [offset=0]\n     *        offset to use when looking at bytes in a\n     *\n     * @param {Array|Uint8Array} [mask=[]]\n     *        mask to use on bytes before comparison.\n     *\n     * @return {boolean}\n     *         If all bytes in b are inside of a, taking into account\n     *         bit masks.\n     */\n\n    var bytesMatch = function bytesMatch(a, b, _temp3) {\n        var _ref3 = _temp3 === void 0 ? {} : _temp3,\n            _ref3$offset = _ref3.offset,\n            offset = _ref3$offset === void 0 ? 0 : _ref3$offset,\n            _ref3$mask = _ref3.mask,\n            mask = _ref3$mask === void 0 ? [] : _ref3$mask;\n        a = toUint8(a);\n        b = toUint8(b); // ie 11 does not support uint8 every\n\n        var fn = b.every ? b.every : Array.prototype.every;\n        return b.length && a.length - offset >= b.length &&\n            // ie 11 doesn't support every on uin8\n            fn.call(b, function (bByte, i) {\n                var aByte = mask[i] ? mask[i] & a[offset + i] : a[offset + i];\n                return bByte === aByte;\n            });\n    };\n\n    var DEFAULT_LOCATION = 'http://example.com';\n    var resolveUrl$1 = function resolveUrl(baseUrl, relativeUrl) {\n        // return early if we don't need to resolve\n        if (/^[a-z]+:/i.test(relativeUrl)) {\n            return relativeUrl;\n        } // if baseUrl is a data URI, ignore it and resolve everything relative to window.location\n\n        if (/^data:/.test(baseUrl)) {\n            baseUrl = window.location && window.location.href || '';\n        } // IE11 supports URL but not the URL constructor\n        // feature detect the behavior we want\n\n        var nativeURL = typeof window.URL === 'function';\n        var protocolLess = /^\\/\\//.test(baseUrl); // remove location if window.location isn't available (i.e. we're in node)\n        // and if baseUrl isn't an absolute url\n\n        var removeLocation = !window.location && !/\\/\\//i.test(baseUrl); // if the base URL is relative then combine with the current location\n\n        if (nativeURL) {\n            baseUrl = new window.URL(baseUrl, window.location || DEFAULT_LOCATION);\n        } else if (!/\\/\\//i.test(baseUrl)) {\n            baseUrl = urlToolkit.buildAbsoluteURL(window.location && window.location.href || '', baseUrl);\n        }\n        if (nativeURL) {\n            var newUrl = new URL(relativeUrl, baseUrl); // if we're a protocol-less url, remove the protocol\n            // and if we're location-less, remove the location\n            // otherwise, return the url unmodified\n\n            if (removeLocation) {\n                return newUrl.href.slice(DEFAULT_LOCATION.length);\n            } else if (protocolLess) {\n                return newUrl.href.slice(newUrl.protocol.length);\n            }\n            return newUrl.href;\n        }\n        return urlToolkit.buildAbsoluteURL(baseUrl, relativeUrl);\n    };\n\n    /**\n     * Loops through all supported media groups in master and calls the provided\n     * callback for each group\n     *\n     * @param {Object} master\n     *        The parsed master manifest object\n     * @param {string[]} groups\n     *        The media groups to call the callback for\n     * @param {Function} callback\n     *        Callback to call for each media group\n     */\n    var forEachMediaGroup$1 = function forEachMediaGroup(master, groups, callback) {\n        groups.forEach(function (mediaType) {\n            for (var groupKey in master.mediaGroups[mediaType]) {\n                for (var labelKey in master.mediaGroups[mediaType][groupKey]) {\n                    var mediaProperties = master.mediaGroups[mediaType][groupKey][labelKey];\n                    callback(mediaProperties, mediaType, groupKey, labelKey);\n                }\n            }\n        });\n    };\n\n    var atob = function atob(s) {\n        return window.atob ? window.atob(s) : Buffer.from(s, 'base64').toString('binary');\n    };\n    function decodeB64ToUint8Array(b64Text) {\n        var decodedString = atob(b64Text);\n        var array = new Uint8Array(decodedString.length);\n        for (var i = 0; i < decodedString.length; i++) {\n            array[i] = decodedString.charCodeAt(i);\n        }\n        return array;\n    }\n\n    /**\n     * Ponyfill for `Array.prototype.find` which is only available in ES6 runtimes.\n     *\n     * Works with anything that has a `length` property and index access properties, including NodeList.\n     *\n     * @template {unknown} T\n     * @param {Array<T> | ({length:number, [number]: T})} list\n     * @param {function (item: T, index: number, list:Array<T> | ({length:number, [number]: T})):boolean} predicate\n     * @param {Partial<Pick<ArrayConstructor['prototype'], 'find'>>?} ac `Array.prototype` by default,\n     * \t\t\t\tallows injecting a custom implementation in tests\n     * @returns {T | undefined}\n     *\n     * @see https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/find\n     * @see https://tc39.es/ecma262/multipage/indexed-collections.html#sec-array.prototype.find\n     */\n    function find$1(list, predicate, ac) {\n        if (ac === undefined) {\n            ac = Array.prototype;\n        }\n        if (list && typeof ac.find === 'function') {\n            return ac.find.call(list, predicate);\n        }\n        for (var i = 0; i < list.length; i++) {\n            if (Object.prototype.hasOwnProperty.call(list, i)) {\n                var item = list[i];\n                if (predicate.call(undefined, item, i, list)) {\n                    return item;\n                }\n            }\n        }\n    }\n\n    /**\n     * \"Shallow freezes\" an object to render it immutable.\n     * Uses `Object.freeze` if available,\n     * otherwise the immutability is only in the type.\n     *\n     * Is used to create \"enum like\" objects.\n     *\n     * @template T\n     * @param {T} object the object to freeze\n     * @param {Pick<ObjectConstructor, 'freeze'> = Object} oc `Object` by default,\n     * \t\t\t\tallows to inject custom object constructor for tests\n     * @returns {Readonly<T>}\n     *\n     * @see https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/freeze\n     */\n    function freeze(object, oc) {\n        if (oc === undefined) {\n            oc = Object;\n        }\n        return oc && typeof oc.freeze === 'function' ? oc.freeze(object) : object;\n    }\n\n    /**\n     * Since we can not rely on `Object.assign` we provide a simplified version\n     * that is sufficient for our needs.\n     *\n     * @param {Object} target\n     * @param {Object | null | undefined} source\n     *\n     * @returns {Object} target\n     * @throws TypeError if target is not an object\n     *\n     * @see https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/assign\n     * @see https://tc39.es/ecma262/multipage/fundamental-objects.html#sec-object.assign\n     */\n    function assign(target, source) {\n        if (target === null || typeof target !== 'object') {\n            throw new TypeError('target is not an object');\n        }\n        for (var key in source) {\n            if (Object.prototype.hasOwnProperty.call(source, key)) {\n                target[key] = source[key];\n            }\n        }\n        return target;\n    }\n\n    /**\n     * All mime types that are allowed as input to `DOMParser.parseFromString`\n     *\n     * @see https://developer.mozilla.org/en-US/docs/Web/API/DOMParser/parseFromString#Argument02 MDN\n     * @see https://html.spec.whatwg.org/multipage/dynamic-markup-insertion.html#domparsersupportedtype WHATWG HTML Spec\n     * @see DOMParser.prototype.parseFromString\n     */\n    var MIME_TYPE = freeze({\n        /**\n         * `text/html`, the only mime type that triggers treating an XML document as HTML.\n         *\n         * @see DOMParser.SupportedType.isHTML\n         * @see https://www.iana.org/assignments/media-types/text/html IANA MimeType registration\n         * @see https://en.wikipedia.org/wiki/HTML Wikipedia\n         * @see https://developer.mozilla.org/en-US/docs/Web/API/DOMParser/parseFromString MDN\n         * @see https://html.spec.whatwg.org/multipage/dynamic-markup-insertion.html#dom-domparser-parsefromstring WHATWG HTML Spec\n         */\n        HTML: 'text/html',\n        /**\n         * Helper method to check a mime type if it indicates an HTML document\n         *\n         * @param {string} [value]\n         * @returns {boolean}\n         *\n         * @see https://www.iana.org/assignments/media-types/text/html IANA MimeType registration\n         * @see https://en.wikipedia.org/wiki/HTML Wikipedia\n         * @see https://developer.mozilla.org/en-US/docs/Web/API/DOMParser/parseFromString MDN\n         * @see https://html.spec.whatwg.org/multipage/dynamic-markup-insertion.html#dom-domparser-parsefromstring \t */\n        isHTML: function (value) {\n            return value === MIME_TYPE.HTML;\n        },\n        /**\n         * `application/xml`, the standard mime type for XML documents.\n         *\n         * @see https://www.iana.org/assignments/media-types/application/xml IANA MimeType registration\n         * @see https://tools.ietf.org/html/rfc7303#section-9.1 RFC 7303\n         * @see https://en.wikipedia.org/wiki/XML_and_MIME Wikipedia\n         */\n        XML_APPLICATION: 'application/xml',\n        /**\n         * `text/html`, an alias for `application/xml`.\n         *\n         * @see https://tools.ietf.org/html/rfc7303#section-9.2 RFC 7303\n         * @see https://www.iana.org/assignments/media-types/text/xml IANA MimeType registration\n         * @see https://en.wikipedia.org/wiki/XML_and_MIME Wikipedia\n         */\n        XML_TEXT: 'text/xml',\n        /**\n         * `application/xhtml+xml`, indicates an XML document that has the default HTML namespace,\n         * but is parsed as an XML document.\n         *\n         * @see https://www.iana.org/assignments/media-types/application/xhtml+xml IANA MimeType registration\n         * @see https://dom.spec.whatwg.org/#dom-domimplementation-createdocument WHATWG DOM Spec\n         * @see https://en.wikipedia.org/wiki/XHTML Wikipedia\n         */\n        XML_XHTML_APPLICATION: 'application/xhtml+xml',\n        /**\n         * `image/svg+xml`,\n         *\n         * @see https://www.iana.org/assignments/media-types/image/svg+xml IANA MimeType registration\n         * @see https://www.w3.org/TR/SVG11/ W3C SVG 1.1\n         * @see https://en.wikipedia.org/wiki/Scalable_Vector_Graphics Wikipedia\n         */\n        XML_SVG_IMAGE: 'image/svg+xml'\n    });\n\n    /**\n     * Namespaces that are used in this code base.\n     *\n     * @see http://www.w3.org/TR/REC-xml-names\n     */\n    var NAMESPACE$3 = freeze({\n        /**\n         * The XHTML namespace.\n         *\n         * @see http://www.w3.org/1999/xhtml\n         */\n        HTML: 'http://www.w3.org/1999/xhtml',\n        /**\n         * Checks if `uri` equals `NAMESPACE.HTML`.\n         *\n         * @param {string} [uri]\n         *\n         * @see NAMESPACE.HTML\n         */\n        isHTML: function (uri) {\n            return uri === NAMESPACE$3.HTML;\n        },\n        /**\n         * The SVG namespace.\n         *\n         * @see http://www.w3.org/2000/svg\n         */\n        SVG: 'http://www.w3.org/2000/svg',\n        /**\n         * The `xml:` namespace.\n         *\n         * @see http://www.w3.org/XML/1998/namespace\n         */\n        XML: 'http://www.w3.org/XML/1998/namespace',\n        /**\n         * The `xmlns:` namespace\n         *\n         * @see https://www.w3.org/2000/xmlns/\n         */\n        XMLNS: 'http://www.w3.org/2000/xmlns/'\n    });\n    var assign_1 = assign;\n    var find_1 = find$1;\n    var freeze_1 = freeze;\n    var MIME_TYPE_1 = MIME_TYPE;\n    var NAMESPACE_1 = NAMESPACE$3;\n    var conventions = {\n        assign: assign_1,\n        find: find_1,\n        freeze: freeze_1,\n        MIME_TYPE: MIME_TYPE_1,\n        NAMESPACE: NAMESPACE_1\n    };\n\n    var find = conventions.find;\n    var NAMESPACE$2 = conventions.NAMESPACE;\n\n    /**\n     * A prerequisite for `[].filter`, to drop elements that are empty\n     * @param {string} input\n     * @returns {boolean}\n     */\n    function notEmptyString(input) {\n        return input !== '';\n    }\n    /**\n     * @see https://infra.spec.whatwg.org/#split-on-ascii-whitespace\n     * @see https://infra.spec.whatwg.org/#ascii-whitespace\n     *\n     * @param {string} input\n     * @returns {string[]} (can be empty)\n     */\n    function splitOnASCIIWhitespace(input) {\n        // U+0009 TAB, U+000A LF, U+000C FF, U+000D CR, U+0020 SPACE\n        return input ? input.split(/[\\t\\n\\f\\r ]+/).filter(notEmptyString) : [];\n    }\n\n    /**\n     * Adds element as a key to current if it is not already present.\n     *\n     * @param {Record<string, boolean | undefined>} current\n     * @param {string} element\n     * @returns {Record<string, boolean | undefined>}\n     */\n    function orderedSetReducer(current, element) {\n        if (!current.hasOwnProperty(element)) {\n            current[element] = true;\n        }\n        return current;\n    }\n\n    /**\n     * @see https://infra.spec.whatwg.org/#ordered-set\n     * @param {string} input\n     * @returns {string[]}\n     */\n    function toOrderedSet(input) {\n        if (!input) return [];\n        var list = splitOnASCIIWhitespace(input);\n        return Object.keys(list.reduce(orderedSetReducer, {}));\n    }\n\n    /**\n     * Uses `list.indexOf` to implement something like `Array.prototype.includes`,\n     * which we can not rely on being available.\n     *\n     * @param {any[]} list\n     * @returns {function(any): boolean}\n     */\n    function arrayIncludes(list) {\n        return function (element) {\n            return list && list.indexOf(element) !== -1;\n        };\n    }\n    function copy(src, dest) {\n        for (var p in src) {\n            if (Object.prototype.hasOwnProperty.call(src, p)) {\n                dest[p] = src[p];\n            }\n        }\n    }\n\n    /**\n     ^\\w+\\.prototype\\.([_\\w]+)\\s*=\\s*((?:.*\\{\\s*?[\\r\\n][\\s\\S]*?^})|\\S.*?(?=[;\\r\\n]));?\n     ^\\w+\\.prototype\\.([_\\w]+)\\s*=\\s*(\\S.*?(?=[;\\r\\n]));?\n     */\n    function _extends(Class, Super) {\n        var pt = Class.prototype;\n        if (!(pt instanceof Super)) {\n            function t() {}\n            t.prototype = Super.prototype;\n            t = new t();\n            copy(pt, t);\n            Class.prototype = pt = t;\n        }\n        if (pt.constructor != Class) {\n            if (typeof Class != 'function') {\n                console.error(\"unknown Class:\" + Class);\n            }\n            pt.constructor = Class;\n        }\n    }\n\n    // Node Types\n    var NodeType = {};\n    var ELEMENT_NODE = NodeType.ELEMENT_NODE = 1;\n    var ATTRIBUTE_NODE = NodeType.ATTRIBUTE_NODE = 2;\n    var TEXT_NODE = NodeType.TEXT_NODE = 3;\n    var CDATA_SECTION_NODE = NodeType.CDATA_SECTION_NODE = 4;\n    var ENTITY_REFERENCE_NODE = NodeType.ENTITY_REFERENCE_NODE = 5;\n    var ENTITY_NODE = NodeType.ENTITY_NODE = 6;\n    var PROCESSING_INSTRUCTION_NODE = NodeType.PROCESSING_INSTRUCTION_NODE = 7;\n    var COMMENT_NODE = NodeType.COMMENT_NODE = 8;\n    var DOCUMENT_NODE = NodeType.DOCUMENT_NODE = 9;\n    var DOCUMENT_TYPE_NODE = NodeType.DOCUMENT_TYPE_NODE = 10;\n    var DOCUMENT_FRAGMENT_NODE = NodeType.DOCUMENT_FRAGMENT_NODE = 11;\n    var NOTATION_NODE = NodeType.NOTATION_NODE = 12;\n\n    // ExceptionCode\n    var ExceptionCode = {};\n    var ExceptionMessage = {};\n    ExceptionCode.INDEX_SIZE_ERR = (ExceptionMessage[1] = \"Index size error\", 1);\n    ExceptionCode.DOMSTRING_SIZE_ERR = (ExceptionMessage[2] = \"DOMString size error\", 2);\n    var HIERARCHY_REQUEST_ERR = ExceptionCode.HIERARCHY_REQUEST_ERR = (ExceptionMessage[3] = \"Hierarchy request error\", 3);\n    ExceptionCode.WRONG_DOCUMENT_ERR = (ExceptionMessage[4] = \"Wrong document\", 4);\n    ExceptionCode.INVALID_CHARACTER_ERR = (ExceptionMessage[5] = \"Invalid character\", 5);\n    ExceptionCode.NO_DATA_ALLOWED_ERR = (ExceptionMessage[6] = \"No data allowed\", 6);\n    ExceptionCode.NO_MODIFICATION_ALLOWED_ERR = (ExceptionMessage[7] = \"No modification allowed\", 7);\n    var NOT_FOUND_ERR = ExceptionCode.NOT_FOUND_ERR = (ExceptionMessage[8] = \"Not found\", 8);\n    ExceptionCode.NOT_SUPPORTED_ERR = (ExceptionMessage[9] = \"Not supported\", 9);\n    var INUSE_ATTRIBUTE_ERR = ExceptionCode.INUSE_ATTRIBUTE_ERR = (ExceptionMessage[10] = \"Attribute in use\", 10);\n    //level2\n    ExceptionCode.INVALID_STATE_ERR = (ExceptionMessage[11] = \"Invalid state\", 11);\n    ExceptionCode.SYNTAX_ERR = (ExceptionMessage[12] = \"Syntax error\", 12);\n    ExceptionCode.INVALID_MODIFICATION_ERR = (ExceptionMessage[13] = \"Invalid modification\", 13);\n    ExceptionCode.NAMESPACE_ERR = (ExceptionMessage[14] = \"Invalid namespace\", 14);\n    ExceptionCode.INVALID_ACCESS_ERR = (ExceptionMessage[15] = \"Invalid access\", 15);\n\n    /**\n     * DOM Level 2\n     * Object DOMException\n     * @see http://www.w3.org/TR/2000/REC-DOM-Level-2-Core-20001113/ecma-script-binding.html\n     * @see http://www.w3.org/TR/REC-DOM-Level-1/ecma-script-language-binding.html\n     */\n    function DOMException(code, message) {\n        if (message instanceof Error) {\n            var error = message;\n        } else {\n            error = this;\n            Error.call(this, ExceptionMessage[code]);\n            this.message = ExceptionMessage[code];\n            if (Error.captureStackTrace) Error.captureStackTrace(this, DOMException);\n        }\n        error.code = code;\n        if (message) this.message = this.message + \": \" + message;\n        return error;\n    }\n    DOMException.prototype = Error.prototype;\n    copy(ExceptionCode, DOMException);\n\n    /**\n     * @see http://www.w3.org/TR/2000/REC-DOM-Level-2-Core-20001113/core.html#ID-536297177\n     * The NodeList interface provides the abstraction of an ordered collection of nodes, without defining or constraining how this collection is implemented. NodeList objects in the DOM are live.\n     * The items in the NodeList are accessible via an integral index, starting from 0.\n     */\n    function NodeList() {}\n    NodeList.prototype = {\n        /**\n         * The number of nodes in the list. The range of valid child node indices is 0 to length-1 inclusive.\n         * @standard level1\n         */\n        length: 0,\n        /**\n         * Returns the indexth item in the collection. If index is greater than or equal to the number of nodes in the list, this returns null.\n         * @standard level1\n         * @param index  unsigned long\n         *   Index into the collection.\n         * @return Node\n         * \tThe node at the indexth position in the NodeList, or null if that is not a valid index.\n         */\n        item: function (index) {\n            return this[index] || null;\n        },\n        toString: function (isHTML, nodeFilter) {\n            for (var buf = [], i = 0; i < this.length; i++) {\n                serializeToString(this[i], buf, isHTML, nodeFilter);\n            }\n            return buf.join('');\n        },\n        /**\n         * @private\n         * @param {function (Node):boolean} predicate\n         * @returns {Node[]}\n         */\n        filter: function (predicate) {\n            return Array.prototype.filter.call(this, predicate);\n        },\n        /**\n         * @private\n         * @param {Node} item\n         * @returns {number}\n         */\n        indexOf: function (item) {\n            return Array.prototype.indexOf.call(this, item);\n        }\n    };\n    function LiveNodeList(node, refresh) {\n        this._node = node;\n        this._refresh = refresh;\n        _updateLiveList(this);\n    }\n    function _updateLiveList(list) {\n        var inc = list._node._inc || list._node.ownerDocument._inc;\n        if (list._inc != inc) {\n            var ls = list._refresh(list._node);\n            //console.log(ls.length)\n            __set__(list, 'length', ls.length);\n            copy(ls, list);\n            list._inc = inc;\n        }\n    }\n    LiveNodeList.prototype.item = function (i) {\n        _updateLiveList(this);\n        return this[i];\n    };\n    _extends(LiveNodeList, NodeList);\n\n    /**\n     * Objects implementing the NamedNodeMap interface are used\n     * to represent collections of nodes that can be accessed by name.\n     * Note that NamedNodeMap does not inherit from NodeList;\n     * NamedNodeMaps are not maintained in any particular order.\n     * Objects contained in an object implementing NamedNodeMap may also be accessed by an ordinal index,\n     * but this is simply to allow convenient enumeration of the contents of a NamedNodeMap,\n     * and does not imply that the DOM specifies an order to these Nodes.\n     * NamedNodeMap objects in the DOM are live.\n     * used for attributes or DocumentType entities\n     */\n    function NamedNodeMap() {}\n    function _findNodeIndex(list, node) {\n        var i = list.length;\n        while (i--) {\n            if (list[i] === node) {\n                return i;\n            }\n        }\n    }\n    function _addNamedNode(el, list, newAttr, oldAttr) {\n        if (oldAttr) {\n            list[_findNodeIndex(list, oldAttr)] = newAttr;\n        } else {\n            list[list.length++] = newAttr;\n        }\n        if (el) {\n            newAttr.ownerElement = el;\n            var doc = el.ownerDocument;\n            if (doc) {\n                oldAttr && _onRemoveAttribute(doc, el, oldAttr);\n                _onAddAttribute(doc, el, newAttr);\n            }\n        }\n    }\n    function _removeNamedNode(el, list, attr) {\n        //console.log('remove attr:'+attr)\n        var i = _findNodeIndex(list, attr);\n        if (i >= 0) {\n            var lastIndex = list.length - 1;\n            while (i < lastIndex) {\n                list[i] = list[++i];\n            }\n            list.length = lastIndex;\n            if (el) {\n                var doc = el.ownerDocument;\n                if (doc) {\n                    _onRemoveAttribute(doc, el, attr);\n                    attr.ownerElement = null;\n                }\n            }\n        } else {\n            throw new DOMException(NOT_FOUND_ERR, new Error(el.tagName + '@' + attr));\n        }\n    }\n    NamedNodeMap.prototype = {\n        length: 0,\n        item: NodeList.prototype.item,\n        getNamedItem: function (key) {\n            //\t\tif(key.indexOf(':')>0 || key == 'xmlns'){\n            //\t\t\treturn null;\n            //\t\t}\n            //console.log()\n            var i = this.length;\n            while (i--) {\n                var attr = this[i];\n                //console.log(attr.nodeName,key)\n                if (attr.nodeName == key) {\n                    return attr;\n                }\n            }\n        },\n        setNamedItem: function (attr) {\n            var el = attr.ownerElement;\n            if (el && el != this._ownerElement) {\n                throw new DOMException(INUSE_ATTRIBUTE_ERR);\n            }\n            var oldAttr = this.getNamedItem(attr.nodeName);\n            _addNamedNode(this._ownerElement, this, attr, oldAttr);\n            return oldAttr;\n        },\n        /* returns Node */\n        setNamedItemNS: function (attr) {\n            // raises: WRONG_DOCUMENT_ERR,NO_MODIFICATION_ALLOWED_ERR,INUSE_ATTRIBUTE_ERR\n            var el = attr.ownerElement,\n                oldAttr;\n            if (el && el != this._ownerElement) {\n                throw new DOMException(INUSE_ATTRIBUTE_ERR);\n            }\n            oldAttr = this.getNamedItemNS(attr.namespaceURI, attr.localName);\n            _addNamedNode(this._ownerElement, this, attr, oldAttr);\n            return oldAttr;\n        },\n        /* returns Node */\n        removeNamedItem: function (key) {\n            var attr = this.getNamedItem(key);\n            _removeNamedNode(this._ownerElement, this, attr);\n            return attr;\n        },\n        // raises: NOT_FOUND_ERR,NO_MODIFICATION_ALLOWED_ERR\n\n        //for level2\n        removeNamedItemNS: function (namespaceURI, localName) {\n            var attr = this.getNamedItemNS(namespaceURI, localName);\n            _removeNamedNode(this._ownerElement, this, attr);\n            return attr;\n        },\n        getNamedItemNS: function (namespaceURI, localName) {\n            var i = this.length;\n            while (i--) {\n                var node = this[i];\n                if (node.localName == localName && node.namespaceURI == namespaceURI) {\n                    return node;\n                }\n            }\n            return null;\n        }\n    };\n\n    /**\n     * The DOMImplementation interface represents an object providing methods\n     * which are not dependent on any particular document.\n     * Such an object is returned by the `Document.implementation` property.\n     *\n     * __The individual methods describe the differences compared to the specs.__\n     *\n     * @constructor\n     *\n     * @see https://developer.mozilla.org/en-US/docs/Web/API/DOMImplementation MDN\n     * @see https://www.w3.org/TR/REC-DOM-Level-1/level-one-core.html#ID-102161490 DOM Level 1 Core (Initial)\n     * @see https://www.w3.org/TR/DOM-Level-2-Core/core.html#ID-102161490 DOM Level 2 Core\n     * @see https://www.w3.org/TR/DOM-Level-3-Core/core.html#ID-102161490 DOM Level 3 Core\n     * @see https://dom.spec.whatwg.org/#domimplementation DOM Living Standard\n     */\n    function DOMImplementation$1() {}\n    DOMImplementation$1.prototype = {\n        /**\n         * The DOMImplementation.hasFeature() method returns a Boolean flag indicating if a given feature is supported.\n         * The different implementations fairly diverged in what kind of features were reported.\n         * The latest version of the spec settled to force this method to always return true, where the functionality was accurate and in use.\n         *\n         * @deprecated It is deprecated and modern browsers return true in all cases.\n         *\n         * @param {string} feature\n         * @param {string} [version]\n         * @returns {boolean} always true\n         *\n         * @see https://developer.mozilla.org/en-US/docs/Web/API/DOMImplementation/hasFeature MDN\n         * @see https://www.w3.org/TR/REC-DOM-Level-1/level-one-core.html#ID-5CED94D7 DOM Level 1 Core\n         * @see https://dom.spec.whatwg.org/#dom-domimplementation-hasfeature DOM Living Standard\n         */\n        hasFeature: function (feature, version) {\n            return true;\n        },\n        /**\n         * Creates an XML Document object of the specified type with its document element.\n         *\n         * __It behaves slightly different from the description in the living standard__:\n         * - There is no interface/class `XMLDocument`, it returns a `Document` instance.\n         * - `contentType`, `encoding`, `mode`, `origin`, `url` fields are currently not declared.\n         * - this implementation is not validating names or qualified names\n         *   (when parsing XML strings, the SAX parser takes care of that)\n         *\n         * @param {string|null} namespaceURI\n         * @param {string} qualifiedName\n         * @param {DocumentType=null} doctype\n         * @returns {Document}\n         *\n         * @see https://developer.mozilla.org/en-US/docs/Web/API/DOMImplementation/createDocument MDN\n         * @see https://www.w3.org/TR/DOM-Level-2-Core/core.html#Level-2-Core-DOM-createDocument DOM Level 2 Core (initial)\n         * @see https://dom.spec.whatwg.org/#dom-domimplementation-createdocument  DOM Level 2 Core\n         *\n         * @see https://dom.spec.whatwg.org/#validate-and-extract DOM: Validate and extract\n         * @see https://www.w3.org/TR/xml/#NT-NameStartChar XML Spec: Names\n         * @see https://www.w3.org/TR/xml-names/#ns-qualnames XML Namespaces: Qualified names\n         */\n        createDocument: function (namespaceURI, qualifiedName, doctype) {\n            var doc = new Document();\n            doc.implementation = this;\n            doc.childNodes = new NodeList();\n            doc.doctype = doctype || null;\n            if (doctype) {\n                doc.appendChild(doctype);\n            }\n            if (qualifiedName) {\n                var root = doc.createElementNS(namespaceURI, qualifiedName);\n                doc.appendChild(root);\n            }\n            return doc;\n        },\n        /**\n         * Returns a doctype, with the given `qualifiedName`, `publicId`, and `systemId`.\n         *\n         * __This behavior is slightly different from the in the specs__:\n         * - this implementation is not validating names or qualified names\n         *   (when parsing XML strings, the SAX parser takes care of that)\n         *\n         * @param {string} qualifiedName\n         * @param {string} [publicId]\n         * @param {string} [systemId]\n         * @returns {DocumentType} which can either be used with `DOMImplementation.createDocument` upon document creation\n         * \t\t\t\t  or can be put into the document via methods like `Node.insertBefore()` or `Node.replaceChild()`\n         *\n         * @see https://developer.mozilla.org/en-US/docs/Web/API/DOMImplementation/createDocumentType MDN\n         * @see https://www.w3.org/TR/DOM-Level-2-Core/core.html#Level-2-Core-DOM-createDocType DOM Level 2 Core\n         * @see https://dom.spec.whatwg.org/#dom-domimplementation-createdocumenttype DOM Living Standard\n         *\n         * @see https://dom.spec.whatwg.org/#validate-and-extract DOM: Validate and extract\n         * @see https://www.w3.org/TR/xml/#NT-NameStartChar XML Spec: Names\n         * @see https://www.w3.org/TR/xml-names/#ns-qualnames XML Namespaces: Qualified names\n         */\n        createDocumentType: function (qualifiedName, publicId, systemId) {\n            var node = new DocumentType();\n            node.name = qualifiedName;\n            node.nodeName = qualifiedName;\n            node.publicId = publicId || '';\n            node.systemId = systemId || '';\n            return node;\n        }\n    };\n\n    /**\n     * @see http://www.w3.org/TR/2000/REC-DOM-Level-2-Core-20001113/core.html#ID-1950641247\n     */\n\n    function Node() {}\n    Node.prototype = {\n        firstChild: null,\n        lastChild: null,\n        previousSibling: null,\n        nextSibling: null,\n        attributes: null,\n        parentNode: null,\n        childNodes: null,\n        ownerDocument: null,\n        nodeValue: null,\n        namespaceURI: null,\n        prefix: null,\n        localName: null,\n        // Modified in DOM Level 2:\n        insertBefore: function (newChild, refChild) {\n            //raises\n            return _insertBefore(this, newChild, refChild);\n        },\n        replaceChild: function (newChild, oldChild) {\n            //raises\n            _insertBefore(this, newChild, oldChild, assertPreReplacementValidityInDocument);\n            if (oldChild) {\n                this.removeChild(oldChild);\n            }\n        },\n        removeChild: function (oldChild) {\n            return _removeChild(this, oldChild);\n        },\n        appendChild: function (newChild) {\n            return this.insertBefore(newChild, null);\n        },\n        hasChildNodes: function () {\n            return this.firstChild != null;\n        },\n        cloneNode: function (deep) {\n            return cloneNode(this.ownerDocument || this, this, deep);\n        },\n        // Modified in DOM Level 2:\n        normalize: function () {\n            var child = this.firstChild;\n            while (child) {\n                var next = child.nextSibling;\n                if (next && next.nodeType == TEXT_NODE && child.nodeType == TEXT_NODE) {\n                    this.removeChild(next);\n                    child.appendData(next.data);\n                } else {\n                    child.normalize();\n                    child = next;\n                }\n            }\n        },\n        // Introduced in DOM Level 2:\n        isSupported: function (feature, version) {\n            return this.ownerDocument.implementation.hasFeature(feature, version);\n        },\n        // Introduced in DOM Level 2:\n        hasAttributes: function () {\n            return this.attributes.length > 0;\n        },\n        /**\n         * Look up the prefix associated to the given namespace URI, starting from this node.\n         * **The default namespace declarations are ignored by this method.**\n         * See Namespace Prefix Lookup for details on the algorithm used by this method.\n         *\n         * _Note: The implementation seems to be incomplete when compared to the algorithm described in the specs._\n         *\n         * @param {string | null} namespaceURI\n         * @returns {string | null}\n         * @see https://www.w3.org/TR/DOM-Level-3-Core/core.html#Node3-lookupNamespacePrefix\n         * @see https://www.w3.org/TR/DOM-Level-3-Core/namespaces-algorithms.html#lookupNamespacePrefixAlgo\n         * @see https://dom.spec.whatwg.org/#dom-node-lookupprefix\n         * @see https://github.com/xmldom/xmldom/issues/322\n         */\n        lookupPrefix: function (namespaceURI) {\n            var el = this;\n            while (el) {\n                var map = el._nsMap;\n                //console.dir(map)\n                if (map) {\n                    for (var n in map) {\n                        if (Object.prototype.hasOwnProperty.call(map, n) && map[n] === namespaceURI) {\n                            return n;\n                        }\n                    }\n                }\n                el = el.nodeType == ATTRIBUTE_NODE ? el.ownerDocument : el.parentNode;\n            }\n            return null;\n        },\n        // Introduced in DOM Level 3:\n        lookupNamespaceURI: function (prefix) {\n            var el = this;\n            while (el) {\n                var map = el._nsMap;\n                //console.dir(map)\n                if (map) {\n                    if (Object.prototype.hasOwnProperty.call(map, prefix)) {\n                        return map[prefix];\n                    }\n                }\n                el = el.nodeType == ATTRIBUTE_NODE ? el.ownerDocument : el.parentNode;\n            }\n            return null;\n        },\n        // Introduced in DOM Level 3:\n        isDefaultNamespace: function (namespaceURI) {\n            var prefix = this.lookupPrefix(namespaceURI);\n            return prefix == null;\n        }\n    };\n    function _xmlEncoder(c) {\n        return c == '<' && '&lt;' || c == '>' && '&gt;' || c == '&' && '&amp;' || c == '\"' && '&quot;' || '&#' + c.charCodeAt() + ';';\n    }\n    copy(NodeType, Node);\n    copy(NodeType, Node.prototype);\n\n    /**\n     * @param callback return true for continue,false for break\n     * @return boolean true: break visit;\n     */\n    function _visitNode(node, callback) {\n        if (callback(node)) {\n            return true;\n        }\n        if (node = node.firstChild) {\n            do {\n                if (_visitNode(node, callback)) {\n                    return true;\n                }\n            } while (node = node.nextSibling);\n        }\n    }\n    function Document() {\n        this.ownerDocument = this;\n    }\n    function _onAddAttribute(doc, el, newAttr) {\n        doc && doc._inc++;\n        var ns = newAttr.namespaceURI;\n        if (ns === NAMESPACE$2.XMLNS) {\n            //update namespace\n            el._nsMap[newAttr.prefix ? newAttr.localName : ''] = newAttr.value;\n        }\n    }\n    function _onRemoveAttribute(doc, el, newAttr, remove) {\n        doc && doc._inc++;\n        var ns = newAttr.namespaceURI;\n        if (ns === NAMESPACE$2.XMLNS) {\n            //update namespace\n            delete el._nsMap[newAttr.prefix ? newAttr.localName : ''];\n        }\n    }\n\n    /**\n     * Updates `el.childNodes`, updating the indexed items and it's `length`.\n     * Passing `newChild` means it will be appended.\n     * Otherwise it's assumed that an item has been removed,\n     * and `el.firstNode` and it's `.nextSibling` are used\n     * to walk the current list of child nodes.\n     *\n     * @param {Document} doc\n     * @param {Node} el\n     * @param {Node} [newChild]\n     * @private\n     */\n    function _onUpdateChild(doc, el, newChild) {\n        if (doc && doc._inc) {\n            doc._inc++;\n            //update childNodes\n            var cs = el.childNodes;\n            if (newChild) {\n                cs[cs.length++] = newChild;\n            } else {\n                var child = el.firstChild;\n                var i = 0;\n                while (child) {\n                    cs[i++] = child;\n                    child = child.nextSibling;\n                }\n                cs.length = i;\n                delete cs[cs.length];\n            }\n        }\n    }\n\n    /**\n     * Removes the connections between `parentNode` and `child`\n     * and any existing `child.previousSibling` or `child.nextSibling`.\n     *\n     * @see https://github.com/xmldom/xmldom/issues/135\n     * @see https://github.com/xmldom/xmldom/issues/145\n     *\n     * @param {Node} parentNode\n     * @param {Node} child\n     * @returns {Node} the child that was removed.\n     * @private\n     */\n    function _removeChild(parentNode, child) {\n        var previous = child.previousSibling;\n        var next = child.nextSibling;\n        if (previous) {\n            previous.nextSibling = next;\n        } else {\n            parentNode.firstChild = next;\n        }\n        if (next) {\n            next.previousSibling = previous;\n        } else {\n            parentNode.lastChild = previous;\n        }\n        child.parentNode = null;\n        child.previousSibling = null;\n        child.nextSibling = null;\n        _onUpdateChild(parentNode.ownerDocument, parentNode);\n        return child;\n    }\n\n    /**\n     * Returns `true` if `node` can be a parent for insertion.\n     * @param {Node} node\n     * @returns {boolean}\n     */\n    function hasValidParentNodeType(node) {\n        return node && (node.nodeType === Node.DOCUMENT_NODE || node.nodeType === Node.DOCUMENT_FRAGMENT_NODE || node.nodeType === Node.ELEMENT_NODE);\n    }\n\n    /**\n     * Returns `true` if `node` can be inserted according to it's `nodeType`.\n     * @param {Node} node\n     * @returns {boolean}\n     */\n    function hasInsertableNodeType(node) {\n        return node && (isElementNode(node) || isTextNode(node) || isDocTypeNode(node) || node.nodeType === Node.DOCUMENT_FRAGMENT_NODE || node.nodeType === Node.COMMENT_NODE || node.nodeType === Node.PROCESSING_INSTRUCTION_NODE);\n    }\n\n    /**\n     * Returns true if `node` is a DOCTYPE node\n     * @param {Node} node\n     * @returns {boolean}\n     */\n    function isDocTypeNode(node) {\n        return node && node.nodeType === Node.DOCUMENT_TYPE_NODE;\n    }\n\n    /**\n     * Returns true if the node is an element\n     * @param {Node} node\n     * @returns {boolean}\n     */\n    function isElementNode(node) {\n        return node && node.nodeType === Node.ELEMENT_NODE;\n    }\n    /**\n     * Returns true if `node` is a text node\n     * @param {Node} node\n     * @returns {boolean}\n     */\n    function isTextNode(node) {\n        return node && node.nodeType === Node.TEXT_NODE;\n    }\n\n    /**\n     * Check if en element node can be inserted before `child`, or at the end if child is falsy,\n     * according to the presence and position of a doctype node on the same level.\n     *\n     * @param {Document} doc The document node\n     * @param {Node} child the node that would become the nextSibling if the element would be inserted\n     * @returns {boolean} `true` if an element can be inserted before child\n     * @private\n     * https://dom.spec.whatwg.org/#concept-node-ensure-pre-insertion-validity\n     */\n    function isElementInsertionPossible(doc, child) {\n        var parentChildNodes = doc.childNodes || [];\n        if (find(parentChildNodes, isElementNode) || isDocTypeNode(child)) {\n            return false;\n        }\n        var docTypeNode = find(parentChildNodes, isDocTypeNode);\n        return !(child && docTypeNode && parentChildNodes.indexOf(docTypeNode) > parentChildNodes.indexOf(child));\n    }\n\n    /**\n     * Check if en element node can be inserted before `child`, or at the end if child is falsy,\n     * according to the presence and position of a doctype node on the same level.\n     *\n     * @param {Node} doc The document node\n     * @param {Node} child the node that would become the nextSibling if the element would be inserted\n     * @returns {boolean} `true` if an element can be inserted before child\n     * @private\n     * https://dom.spec.whatwg.org/#concept-node-ensure-pre-insertion-validity\n     */\n    function isElementReplacementPossible(doc, child) {\n        var parentChildNodes = doc.childNodes || [];\n        function hasElementChildThatIsNotChild(node) {\n            return isElementNode(node) && node !== child;\n        }\n        if (find(parentChildNodes, hasElementChildThatIsNotChild)) {\n            return false;\n        }\n        var docTypeNode = find(parentChildNodes, isDocTypeNode);\n        return !(child && docTypeNode && parentChildNodes.indexOf(docTypeNode) > parentChildNodes.indexOf(child));\n    }\n\n    /**\n     * @private\n     * Steps 1-5 of the checks before inserting and before replacing a child are the same.\n     *\n     * @param {Node} parent the parent node to insert `node` into\n     * @param {Node} node the node to insert\n     * @param {Node=} child the node that should become the `nextSibling` of `node`\n     * @returns {Node}\n     * @throws DOMException for several node combinations that would create a DOM that is not well-formed.\n     * @throws DOMException if `child` is provided but is not a child of `parent`.\n     * @see https://dom.spec.whatwg.org/#concept-node-ensure-pre-insertion-validity\n     * @see https://dom.spec.whatwg.org/#concept-node-replace\n     */\n    function assertPreInsertionValidity1to5(parent, node, child) {\n        // 1. If `parent` is not a Document, DocumentFragment, or Element node, then throw a \"HierarchyRequestError\" DOMException.\n        if (!hasValidParentNodeType(parent)) {\n            throw new DOMException(HIERARCHY_REQUEST_ERR, 'Unexpected parent node type ' + parent.nodeType);\n        }\n        // 2. If `node` is a host-including inclusive ancestor of `parent`, then throw a \"HierarchyRequestError\" DOMException.\n        // not implemented!\n        // 3. If `child` is non-null and its parent is not `parent`, then throw a \"NotFoundError\" DOMException.\n        if (child && child.parentNode !== parent) {\n            throw new DOMException(NOT_FOUND_ERR, 'child not in parent');\n        }\n        if (\n            // 4. If `node` is not a DocumentFragment, DocumentType, Element, or CharacterData node, then throw a \"HierarchyRequestError\" DOMException.\n            !hasInsertableNodeType(node) ||\n            // 5. If either `node` is a Text node and `parent` is a document,\n            // the sax parser currently adds top level text nodes, this will be fixed in 0.9.0\n            // || (node.nodeType === Node.TEXT_NODE && parent.nodeType === Node.DOCUMENT_NODE)\n            // or `node` is a doctype and `parent` is not a document, then throw a \"HierarchyRequestError\" DOMException.\n            isDocTypeNode(node) && parent.nodeType !== Node.DOCUMENT_NODE) {\n            throw new DOMException(HIERARCHY_REQUEST_ERR, 'Unexpected node type ' + node.nodeType + ' for parent node type ' + parent.nodeType);\n        }\n    }\n\n    /**\n     * @private\n     * Step 6 of the checks before inserting and before replacing a child are different.\n     *\n     * @param {Document} parent the parent node to insert `node` into\n     * @param {Node} node the node to insert\n     * @param {Node | undefined} child the node that should become the `nextSibling` of `node`\n     * @returns {Node}\n     * @throws DOMException for several node combinations that would create a DOM that is not well-formed.\n     * @throws DOMException if `child` is provided but is not a child of `parent`.\n     * @see https://dom.spec.whatwg.org/#concept-node-ensure-pre-insertion-validity\n     * @see https://dom.spec.whatwg.org/#concept-node-replace\n     */\n    function assertPreInsertionValidityInDocument(parent, node, child) {\n        var parentChildNodes = parent.childNodes || [];\n        var nodeChildNodes = node.childNodes || [];\n\n        // DocumentFragment\n        if (node.nodeType === Node.DOCUMENT_FRAGMENT_NODE) {\n            var nodeChildElements = nodeChildNodes.filter(isElementNode);\n            // If node has more than one element child or has a Text node child.\n            if (nodeChildElements.length > 1 || find(nodeChildNodes, isTextNode)) {\n                throw new DOMException(HIERARCHY_REQUEST_ERR, 'More than one element or text in fragment');\n            }\n            // Otherwise, if `node` has one element child and either `parent` has an element child,\n            // `child` is a doctype, or `child` is non-null and a doctype is following `child`.\n            if (nodeChildElements.length === 1 && !isElementInsertionPossible(parent, child)) {\n                throw new DOMException(HIERARCHY_REQUEST_ERR, 'Element in fragment can not be inserted before doctype');\n            }\n        }\n        // Element\n        if (isElementNode(node)) {\n            // `parent` has an element child, `child` is a doctype,\n            // or `child` is non-null and a doctype is following `child`.\n            if (!isElementInsertionPossible(parent, child)) {\n                throw new DOMException(HIERARCHY_REQUEST_ERR, 'Only one element can be added and only after doctype');\n            }\n        }\n        // DocumentType\n        if (isDocTypeNode(node)) {\n            // `parent` has a doctype child,\n            if (find(parentChildNodes, isDocTypeNode)) {\n                throw new DOMException(HIERARCHY_REQUEST_ERR, 'Only one doctype is allowed');\n            }\n            var parentElementChild = find(parentChildNodes, isElementNode);\n            // `child` is non-null and an element is preceding `child`,\n            if (child && parentChildNodes.indexOf(parentElementChild) < parentChildNodes.indexOf(child)) {\n                throw new DOMException(HIERARCHY_REQUEST_ERR, 'Doctype can only be inserted before an element');\n            }\n            // or `child` is null and `parent` has an element child.\n            if (!child && parentElementChild) {\n                throw new DOMException(HIERARCHY_REQUEST_ERR, 'Doctype can not be appended since element is present');\n            }\n        }\n    }\n\n    /**\n     * @private\n     * Step 6 of the checks before inserting and before replacing a child are different.\n     *\n     * @param {Document} parent the parent node to insert `node` into\n     * @param {Node} node the node to insert\n     * @param {Node | undefined} child the node that should become the `nextSibling` of `node`\n     * @returns {Node}\n     * @throws DOMException for several node combinations that would create a DOM that is not well-formed.\n     * @throws DOMException if `child` is provided but is not a child of `parent`.\n     * @see https://dom.spec.whatwg.org/#concept-node-ensure-pre-insertion-validity\n     * @see https://dom.spec.whatwg.org/#concept-node-replace\n     */\n    function assertPreReplacementValidityInDocument(parent, node, child) {\n        var parentChildNodes = parent.childNodes || [];\n        var nodeChildNodes = node.childNodes || [];\n\n        // DocumentFragment\n        if (node.nodeType === Node.DOCUMENT_FRAGMENT_NODE) {\n            var nodeChildElements = nodeChildNodes.filter(isElementNode);\n            // If `node` has more than one element child or has a Text node child.\n            if (nodeChildElements.length > 1 || find(nodeChildNodes, isTextNode)) {\n                throw new DOMException(HIERARCHY_REQUEST_ERR, 'More than one element or text in fragment');\n            }\n            // Otherwise, if `node` has one element child and either `parent` has an element child that is not `child` or a doctype is following `child`.\n            if (nodeChildElements.length === 1 && !isElementReplacementPossible(parent, child)) {\n                throw new DOMException(HIERARCHY_REQUEST_ERR, 'Element in fragment can not be inserted before doctype');\n            }\n        }\n        // Element\n        if (isElementNode(node)) {\n            // `parent` has an element child that is not `child` or a doctype is following `child`.\n            if (!isElementReplacementPossible(parent, child)) {\n                throw new DOMException(HIERARCHY_REQUEST_ERR, 'Only one element can be added and only after doctype');\n            }\n        }\n        // DocumentType\n        if (isDocTypeNode(node)) {\n            function hasDoctypeChildThatIsNotChild(node) {\n                return isDocTypeNode(node) && node !== child;\n            }\n\n            // `parent` has a doctype child that is not `child`,\n            if (find(parentChildNodes, hasDoctypeChildThatIsNotChild)) {\n                throw new DOMException(HIERARCHY_REQUEST_ERR, 'Only one doctype is allowed');\n            }\n            var parentElementChild = find(parentChildNodes, isElementNode);\n            // or an element is preceding `child`.\n            if (child && parentChildNodes.indexOf(parentElementChild) < parentChildNodes.indexOf(child)) {\n                throw new DOMException(HIERARCHY_REQUEST_ERR, 'Doctype can only be inserted before an element');\n            }\n        }\n    }\n\n    /**\n     * @private\n     * @param {Node} parent the parent node to insert `node` into\n     * @param {Node} node the node to insert\n     * @param {Node=} child the node that should become the `nextSibling` of `node`\n     * @returns {Node}\n     * @throws DOMException for several node combinations that would create a DOM that is not well-formed.\n     * @throws DOMException if `child` is provided but is not a child of `parent`.\n     * @see https://dom.spec.whatwg.org/#concept-node-ensure-pre-insertion-validity\n     */\n    function _insertBefore(parent, node, child, _inDocumentAssertion) {\n        // To ensure pre-insertion validity of a node into a parent before a child, run these steps:\n        assertPreInsertionValidity1to5(parent, node, child);\n\n        // If parent is a document, and any of the statements below, switched on the interface node implements,\n        // are true, then throw a \"HierarchyRequestError\" DOMException.\n        if (parent.nodeType === Node.DOCUMENT_NODE) {\n            (_inDocumentAssertion || assertPreInsertionValidityInDocument)(parent, node, child);\n        }\n        var cp = node.parentNode;\n        if (cp) {\n            cp.removeChild(node); //remove and update\n        }\n\n        if (node.nodeType === DOCUMENT_FRAGMENT_NODE) {\n            var newFirst = node.firstChild;\n            if (newFirst == null) {\n                return node;\n            }\n            var newLast = node.lastChild;\n        } else {\n            newFirst = newLast = node;\n        }\n        var pre = child ? child.previousSibling : parent.lastChild;\n        newFirst.previousSibling = pre;\n        newLast.nextSibling = child;\n        if (pre) {\n            pre.nextSibling = newFirst;\n        } else {\n            parent.firstChild = newFirst;\n        }\n        if (child == null) {\n            parent.lastChild = newLast;\n        } else {\n            child.previousSibling = newLast;\n        }\n        do {\n            newFirst.parentNode = parent;\n        } while (newFirst !== newLast && (newFirst = newFirst.nextSibling));\n        _onUpdateChild(parent.ownerDocument || parent, parent);\n        //console.log(parent.lastChild.nextSibling == null)\n        if (node.nodeType == DOCUMENT_FRAGMENT_NODE) {\n            node.firstChild = node.lastChild = null;\n        }\n        return node;\n    }\n\n    /**\n     * Appends `newChild` to `parentNode`.\n     * If `newChild` is already connected to a `parentNode` it is first removed from it.\n     *\n     * @see https://github.com/xmldom/xmldom/issues/135\n     * @see https://github.com/xmldom/xmldom/issues/145\n     * @param {Node} parentNode\n     * @param {Node} newChild\n     * @returns {Node}\n     * @private\n     */\n    function _appendSingleChild(parentNode, newChild) {\n        if (newChild.parentNode) {\n            newChild.parentNode.removeChild(newChild);\n        }\n        newChild.parentNode = parentNode;\n        newChild.previousSibling = parentNode.lastChild;\n        newChild.nextSibling = null;\n        if (newChild.previousSibling) {\n            newChild.previousSibling.nextSibling = newChild;\n        } else {\n            parentNode.firstChild = newChild;\n        }\n        parentNode.lastChild = newChild;\n        _onUpdateChild(parentNode.ownerDocument, parentNode, newChild);\n        return newChild;\n    }\n    Document.prototype = {\n        //implementation : null,\n        nodeName: '#document',\n        nodeType: DOCUMENT_NODE,\n        /**\n         * The DocumentType node of the document.\n         *\n         * @readonly\n         * @type DocumentType\n         */\n        doctype: null,\n        documentElement: null,\n        _inc: 1,\n        insertBefore: function (newChild, refChild) {\n            //raises\n            if (newChild.nodeType == DOCUMENT_FRAGMENT_NODE) {\n                var child = newChild.firstChild;\n                while (child) {\n                    var next = child.nextSibling;\n                    this.insertBefore(child, refChild);\n                    child = next;\n                }\n                return newChild;\n            }\n            _insertBefore(this, newChild, refChild);\n            newChild.ownerDocument = this;\n            if (this.documentElement === null && newChild.nodeType === ELEMENT_NODE) {\n                this.documentElement = newChild;\n            }\n            return newChild;\n        },\n        removeChild: function (oldChild) {\n            if (this.documentElement == oldChild) {\n                this.documentElement = null;\n            }\n            return _removeChild(this, oldChild);\n        },\n        replaceChild: function (newChild, oldChild) {\n            //raises\n            _insertBefore(this, newChild, oldChild, assertPreReplacementValidityInDocument);\n            newChild.ownerDocument = this;\n            if (oldChild) {\n                this.removeChild(oldChild);\n            }\n            if (isElementNode(newChild)) {\n                this.documentElement = newChild;\n            }\n        },\n        // Introduced in DOM Level 2:\n        importNode: function (importedNode, deep) {\n            return importNode(this, importedNode, deep);\n        },\n        // Introduced in DOM Level 2:\n        getElementById: function (id) {\n            var rtv = null;\n            _visitNode(this.documentElement, function (node) {\n                if (node.nodeType == ELEMENT_NODE) {\n                    if (node.getAttribute('id') == id) {\n                        rtv = node;\n                        return true;\n                    }\n                }\n            });\n            return rtv;\n        },\n        /**\n         * The `getElementsByClassName` method of `Document` interface returns an array-like object\n         * of all child elements which have **all** of the given class name(s).\n         *\n         * Returns an empty list if `classeNames` is an empty string or only contains HTML white space characters.\n         *\n         *\n         * Warning: This is a live LiveNodeList.\n         * Changes in the DOM will reflect in the array as the changes occur.\n         * If an element selected by this array no longer qualifies for the selector,\n         * it will automatically be removed. Be aware of this for iteration purposes.\n         *\n         * @param {string} classNames is a string representing the class name(s) to match; multiple class names are separated by (ASCII-)whitespace\n         *\n         * @see https://developer.mozilla.org/en-US/docs/Web/API/Document/getElementsByClassName\n         * @see https://dom.spec.whatwg.org/#concept-getelementsbyclassname\n         */\n        getElementsByClassName: function (classNames) {\n            var classNamesSet = toOrderedSet(classNames);\n            return new LiveNodeList(this, function (base) {\n                var ls = [];\n                if (classNamesSet.length > 0) {\n                    _visitNode(base.documentElement, function (node) {\n                        if (node !== base && node.nodeType === ELEMENT_NODE) {\n                            var nodeClassNames = node.getAttribute('class');\n                            // can be null if the attribute does not exist\n                            if (nodeClassNames) {\n                                // before splitting and iterating just compare them for the most common case\n                                var matches = classNames === nodeClassNames;\n                                if (!matches) {\n                                    var nodeClassNamesSet = toOrderedSet(nodeClassNames);\n                                    matches = classNamesSet.every(arrayIncludes(nodeClassNamesSet));\n                                }\n                                if (matches) {\n                                    ls.push(node);\n                                }\n                            }\n                        }\n                    });\n                }\n                return ls;\n            });\n        },\n        //document factory method:\n        createElement: function (tagName) {\n            var node = new Element();\n            node.ownerDocument = this;\n            node.nodeName = tagName;\n            node.tagName = tagName;\n            node.localName = tagName;\n            node.childNodes = new NodeList();\n            var attrs = node.attributes = new NamedNodeMap();\n            attrs._ownerElement = node;\n            return node;\n        },\n        createDocumentFragment: function () {\n            var node = new DocumentFragment();\n            node.ownerDocument = this;\n            node.childNodes = new NodeList();\n            return node;\n        },\n        createTextNode: function (data) {\n            var node = new Text();\n            node.ownerDocument = this;\n            node.appendData(data);\n            return node;\n        },\n        createComment: function (data) {\n            var node = new Comment();\n            node.ownerDocument = this;\n            node.appendData(data);\n            return node;\n        },\n        createCDATASection: function (data) {\n            var node = new CDATASection();\n            node.ownerDocument = this;\n            node.appendData(data);\n            return node;\n        },\n        createProcessingInstruction: function (target, data) {\n            var node = new ProcessingInstruction();\n            node.ownerDocument = this;\n            node.tagName = node.target = target;\n            node.nodeValue = node.data = data;\n            return node;\n        },\n        createAttribute: function (name) {\n            var node = new Attr();\n            node.ownerDocument = this;\n            node.name = name;\n            node.nodeName = name;\n            node.localName = name;\n            node.specified = true;\n            return node;\n        },\n        createEntityReference: function (name) {\n            var node = new EntityReference();\n            node.ownerDocument = this;\n            node.nodeName = name;\n            return node;\n        },\n        // Introduced in DOM Level 2:\n        createElementNS: function (namespaceURI, qualifiedName) {\n            var node = new Element();\n            var pl = qualifiedName.split(':');\n            var attrs = node.attributes = new NamedNodeMap();\n            node.childNodes = new NodeList();\n            node.ownerDocument = this;\n            node.nodeName = qualifiedName;\n            node.tagName = qualifiedName;\n            node.namespaceURI = namespaceURI;\n            if (pl.length == 2) {\n                node.prefix = pl[0];\n                node.localName = pl[1];\n            } else {\n                //el.prefix = null;\n                node.localName = qualifiedName;\n            }\n            attrs._ownerElement = node;\n            return node;\n        },\n        // Introduced in DOM Level 2:\n        createAttributeNS: function (namespaceURI, qualifiedName) {\n            var node = new Attr();\n            var pl = qualifiedName.split(':');\n            node.ownerDocument = this;\n            node.nodeName = qualifiedName;\n            node.name = qualifiedName;\n            node.namespaceURI = namespaceURI;\n            node.specified = true;\n            if (pl.length == 2) {\n                node.prefix = pl[0];\n                node.localName = pl[1];\n            } else {\n                //el.prefix = null;\n                node.localName = qualifiedName;\n            }\n            return node;\n        }\n    };\n    _extends(Document, Node);\n    function Element() {\n        this._nsMap = {};\n    }\n    Element.prototype = {\n        nodeType: ELEMENT_NODE,\n        hasAttribute: function (name) {\n            return this.getAttributeNode(name) != null;\n        },\n        getAttribute: function (name) {\n            var attr = this.getAttributeNode(name);\n            return attr && attr.value || '';\n        },\n        getAttributeNode: function (name) {\n            return this.attributes.getNamedItem(name);\n        },\n        setAttribute: function (name, value) {\n            var attr = this.ownerDocument.createAttribute(name);\n            attr.value = attr.nodeValue = \"\" + value;\n            this.setAttributeNode(attr);\n        },\n        removeAttribute: function (name) {\n            var attr = this.getAttributeNode(name);\n            attr && this.removeAttributeNode(attr);\n        },\n        //four real opeartion method\n        appendChild: function (newChild) {\n            if (newChild.nodeType === DOCUMENT_FRAGMENT_NODE) {\n                return this.insertBefore(newChild, null);\n            } else {\n                return _appendSingleChild(this, newChild);\n            }\n        },\n        setAttributeNode: function (newAttr) {\n            return this.attributes.setNamedItem(newAttr);\n        },\n        setAttributeNodeNS: function (newAttr) {\n            return this.attributes.setNamedItemNS(newAttr);\n        },\n        removeAttributeNode: function (oldAttr) {\n            //console.log(this == oldAttr.ownerElement)\n            return this.attributes.removeNamedItem(oldAttr.nodeName);\n        },\n        //get real attribute name,and remove it by removeAttributeNode\n        removeAttributeNS: function (namespaceURI, localName) {\n            var old = this.getAttributeNodeNS(namespaceURI, localName);\n            old && this.removeAttributeNode(old);\n        },\n        hasAttributeNS: function (namespaceURI, localName) {\n            return this.getAttributeNodeNS(namespaceURI, localName) != null;\n        },\n        getAttributeNS: function (namespaceURI, localName) {\n            var attr = this.getAttributeNodeNS(namespaceURI, localName);\n            return attr && attr.value || '';\n        },\n        setAttributeNS: function (namespaceURI, qualifiedName, value) {\n            var attr = this.ownerDocument.createAttributeNS(namespaceURI, qualifiedName);\n            attr.value = attr.nodeValue = \"\" + value;\n            this.setAttributeNode(attr);\n        },\n        getAttributeNodeNS: function (namespaceURI, localName) {\n            return this.attributes.getNamedItemNS(namespaceURI, localName);\n        },\n        getElementsByTagName: function (tagName) {\n            return new LiveNodeList(this, function (base) {\n                var ls = [];\n                _visitNode(base, function (node) {\n                    if (node !== base && node.nodeType == ELEMENT_NODE && (tagName === '*' || node.tagName == tagName)) {\n                        ls.push(node);\n                    }\n                });\n                return ls;\n            });\n        },\n        getElementsByTagNameNS: function (namespaceURI, localName) {\n            return new LiveNodeList(this, function (base) {\n                var ls = [];\n                _visitNode(base, function (node) {\n                    if (node !== base && node.nodeType === ELEMENT_NODE && (namespaceURI === '*' || node.namespaceURI === namespaceURI) && (localName === '*' || node.localName == localName)) {\n                        ls.push(node);\n                    }\n                });\n                return ls;\n            });\n        }\n    };\n    Document.prototype.getElementsByTagName = Element.prototype.getElementsByTagName;\n    Document.prototype.getElementsByTagNameNS = Element.prototype.getElementsByTagNameNS;\n    _extends(Element, Node);\n    function Attr() {}\n    Attr.prototype.nodeType = ATTRIBUTE_NODE;\n    _extends(Attr, Node);\n    function CharacterData() {}\n    CharacterData.prototype = {\n        data: '',\n        substringData: function (offset, count) {\n            return this.data.substring(offset, offset + count);\n        },\n        appendData: function (text) {\n            text = this.data + text;\n            this.nodeValue = this.data = text;\n            this.length = text.length;\n        },\n        insertData: function (offset, text) {\n            this.replaceData(offset, 0, text);\n        },\n        appendChild: function (newChild) {\n            throw new Error(ExceptionMessage[HIERARCHY_REQUEST_ERR]);\n        },\n        deleteData: function (offset, count) {\n            this.replaceData(offset, count, \"\");\n        },\n        replaceData: function (offset, count, text) {\n            var start = this.data.substring(0, offset);\n            var end = this.data.substring(offset + count);\n            text = start + text + end;\n            this.nodeValue = this.data = text;\n            this.length = text.length;\n        }\n    };\n    _extends(CharacterData, Node);\n    function Text() {}\n    Text.prototype = {\n        nodeName: \"#text\",\n        nodeType: TEXT_NODE,\n        splitText: function (offset) {\n            var text = this.data;\n            var newText = text.substring(offset);\n            text = text.substring(0, offset);\n            this.data = this.nodeValue = text;\n            this.length = text.length;\n            var newNode = this.ownerDocument.createTextNode(newText);\n            if (this.parentNode) {\n                this.parentNode.insertBefore(newNode, this.nextSibling);\n            }\n            return newNode;\n        }\n    };\n    _extends(Text, CharacterData);\n    function Comment() {}\n    Comment.prototype = {\n        nodeName: \"#comment\",\n        nodeType: COMMENT_NODE\n    };\n    _extends(Comment, CharacterData);\n    function CDATASection() {}\n    CDATASection.prototype = {\n        nodeName: \"#cdata-section\",\n        nodeType: CDATA_SECTION_NODE\n    };\n    _extends(CDATASection, CharacterData);\n    function DocumentType() {}\n    DocumentType.prototype.nodeType = DOCUMENT_TYPE_NODE;\n    _extends(DocumentType, Node);\n    function Notation() {}\n    Notation.prototype.nodeType = NOTATION_NODE;\n    _extends(Notation, Node);\n    function Entity() {}\n    Entity.prototype.nodeType = ENTITY_NODE;\n    _extends(Entity, Node);\n    function EntityReference() {}\n    EntityReference.prototype.nodeType = ENTITY_REFERENCE_NODE;\n    _extends(EntityReference, Node);\n    function DocumentFragment() {}\n    DocumentFragment.prototype.nodeName = \"#document-fragment\";\n    DocumentFragment.prototype.nodeType = DOCUMENT_FRAGMENT_NODE;\n    _extends(DocumentFragment, Node);\n    function ProcessingInstruction() {}\n    ProcessingInstruction.prototype.nodeType = PROCESSING_INSTRUCTION_NODE;\n    _extends(ProcessingInstruction, Node);\n    function XMLSerializer() {}\n    XMLSerializer.prototype.serializeToString = function (node, isHtml, nodeFilter) {\n        return nodeSerializeToString.call(node, isHtml, nodeFilter);\n    };\n    Node.prototype.toString = nodeSerializeToString;\n    function nodeSerializeToString(isHtml, nodeFilter) {\n        var buf = [];\n        var refNode = this.nodeType == 9 && this.documentElement || this;\n        var prefix = refNode.prefix;\n        var uri = refNode.namespaceURI;\n        if (uri && prefix == null) {\n            //console.log(prefix)\n            var prefix = refNode.lookupPrefix(uri);\n            if (prefix == null) {\n                //isHTML = true;\n                var visibleNamespaces = [{\n                    namespace: uri,\n                    prefix: null\n                }\n                    //{namespace:uri,prefix:''}\n                ];\n            }\n        }\n\n        serializeToString(this, buf, isHtml, nodeFilter, visibleNamespaces);\n        //console.log('###',this.nodeType,uri,prefix,buf.join(''))\n        return buf.join('');\n    }\n    function needNamespaceDefine(node, isHTML, visibleNamespaces) {\n        var prefix = node.prefix || '';\n        var uri = node.namespaceURI;\n        // According to [Namespaces in XML 1.0](https://www.w3.org/TR/REC-xml-names/#ns-using) ,\n        // and more specifically https://www.w3.org/TR/REC-xml-names/#nsc-NoPrefixUndecl :\n        // > In a namespace declaration for a prefix [...], the attribute value MUST NOT be empty.\n        // in a similar manner [Namespaces in XML 1.1](https://www.w3.org/TR/xml-names11/#ns-using)\n        // and more specifically https://www.w3.org/TR/xml-names11/#nsc-NSDeclared :\n        // > [...] Furthermore, the attribute value [...] must not be an empty string.\n        // so serializing empty namespace value like xmlns:ds=\"\" would produce an invalid XML document.\n        if (!uri) {\n            return false;\n        }\n        if (prefix === \"xml\" && uri === NAMESPACE$2.XML || uri === NAMESPACE$2.XMLNS) {\n            return false;\n        }\n        var i = visibleNamespaces.length;\n        while (i--) {\n            var ns = visibleNamespaces[i];\n            // get namespace prefix\n            if (ns.prefix === prefix) {\n                return ns.namespace !== uri;\n            }\n        }\n        return true;\n    }\n    /**\n     * Well-formed constraint: No < in Attribute Values\n     * > The replacement text of any entity referred to directly or indirectly\n     * > in an attribute value must not contain a <.\n     * @see https://www.w3.org/TR/xml11/#CleanAttrVals\n     * @see https://www.w3.org/TR/xml11/#NT-AttValue\n     *\n     * Literal whitespace other than space that appear in attribute values\n     * are serialized as their entity references, so they will be preserved.\n     * (In contrast to whitespace literals in the input which are normalized to spaces)\n     * @see https://www.w3.org/TR/xml11/#AVNormalize\n     * @see https://w3c.github.io/DOM-Parsing/#serializing-an-element-s-attributes\n     */\n    function addSerializedAttribute(buf, qualifiedName, value) {\n        buf.push(' ', qualifiedName, '=\"', value.replace(/[<>&\"\\t\\n\\r]/g, _xmlEncoder), '\"');\n    }\n    function serializeToString(node, buf, isHTML, nodeFilter, visibleNamespaces) {\n        if (!visibleNamespaces) {\n            visibleNamespaces = [];\n        }\n        if (nodeFilter) {\n            node = nodeFilter(node);\n            if (node) {\n                if (typeof node == 'string') {\n                    buf.push(node);\n                    return;\n                }\n            } else {\n                return;\n            }\n            //buf.sort.apply(attrs, attributeSorter);\n        }\n\n        switch (node.nodeType) {\n            case ELEMENT_NODE:\n                var attrs = node.attributes;\n                var len = attrs.length;\n                var child = node.firstChild;\n                var nodeName = node.tagName;\n                isHTML = NAMESPACE$2.isHTML(node.namespaceURI) || isHTML;\n                var prefixedNodeName = nodeName;\n                if (!isHTML && !node.prefix && node.namespaceURI) {\n                    var defaultNS;\n                    // lookup current default ns from `xmlns` attribute\n                    for (var ai = 0; ai < attrs.length; ai++) {\n                        if (attrs.item(ai).name === 'xmlns') {\n                            defaultNS = attrs.item(ai).value;\n                            break;\n                        }\n                    }\n                    if (!defaultNS) {\n                        // lookup current default ns in visibleNamespaces\n                        for (var nsi = visibleNamespaces.length - 1; nsi >= 0; nsi--) {\n                            var namespace = visibleNamespaces[nsi];\n                            if (namespace.prefix === '' && namespace.namespace === node.namespaceURI) {\n                                defaultNS = namespace.namespace;\n                                break;\n                            }\n                        }\n                    }\n                    if (defaultNS !== node.namespaceURI) {\n                        for (var nsi = visibleNamespaces.length - 1; nsi >= 0; nsi--) {\n                            var namespace = visibleNamespaces[nsi];\n                            if (namespace.namespace === node.namespaceURI) {\n                                if (namespace.prefix) {\n                                    prefixedNodeName = namespace.prefix + ':' + nodeName;\n                                }\n                                break;\n                            }\n                        }\n                    }\n                }\n                buf.push('<', prefixedNodeName);\n                for (var i = 0; i < len; i++) {\n                    // add namespaces for attributes\n                    var attr = attrs.item(i);\n                    if (attr.prefix == 'xmlns') {\n                        visibleNamespaces.push({\n                            prefix: attr.localName,\n                            namespace: attr.value\n                        });\n                    } else if (attr.nodeName == 'xmlns') {\n                        visibleNamespaces.push({\n                            prefix: '',\n                            namespace: attr.value\n                        });\n                    }\n                }\n                for (var i = 0; i < len; i++) {\n                    var attr = attrs.item(i);\n                    if (needNamespaceDefine(attr, isHTML, visibleNamespaces)) {\n                        var prefix = attr.prefix || '';\n                        var uri = attr.namespaceURI;\n                        addSerializedAttribute(buf, prefix ? 'xmlns:' + prefix : \"xmlns\", uri);\n                        visibleNamespaces.push({\n                            prefix: prefix,\n                            namespace: uri\n                        });\n                    }\n                    serializeToString(attr, buf, isHTML, nodeFilter, visibleNamespaces);\n                }\n\n                // add namespace for current node\n                if (nodeName === prefixedNodeName && needNamespaceDefine(node, isHTML, visibleNamespaces)) {\n                    var prefix = node.prefix || '';\n                    var uri = node.namespaceURI;\n                    addSerializedAttribute(buf, prefix ? 'xmlns:' + prefix : \"xmlns\", uri);\n                    visibleNamespaces.push({\n                        prefix: prefix,\n                        namespace: uri\n                    });\n                }\n                if (child || isHTML && !/^(?:meta|link|img|br|hr|input)$/i.test(nodeName)) {\n                    buf.push('>');\n                    //if is cdata child node\n                    if (isHTML && /^script$/i.test(nodeName)) {\n                        while (child) {\n                            if (child.data) {\n                                buf.push(child.data);\n                            } else {\n                                serializeToString(child, buf, isHTML, nodeFilter, visibleNamespaces.slice());\n                            }\n                            child = child.nextSibling;\n                        }\n                    } else {\n                        while (child) {\n                            serializeToString(child, buf, isHTML, nodeFilter, visibleNamespaces.slice());\n                            child = child.nextSibling;\n                        }\n                    }\n                    buf.push('</', prefixedNodeName, '>');\n                } else {\n                    buf.push('/>');\n                }\n                // remove added visible namespaces\n                //visibleNamespaces.length = startVisibleNamespaces;\n                return;\n            case DOCUMENT_NODE:\n            case DOCUMENT_FRAGMENT_NODE:\n                var child = node.firstChild;\n                while (child) {\n                    serializeToString(child, buf, isHTML, nodeFilter, visibleNamespaces.slice());\n                    child = child.nextSibling;\n                }\n                return;\n            case ATTRIBUTE_NODE:\n                return addSerializedAttribute(buf, node.name, node.value);\n            case TEXT_NODE:\n                /**\n                 * The ampersand character (&) and the left angle bracket (<) must not appear in their literal form,\n                 * except when used as markup delimiters, or within a comment, a processing instruction, or a CDATA section.\n                 * If they are needed elsewhere, they must be escaped using either numeric character references or the strings\n                 * `&amp;` and `&lt;` respectively.\n                 * The right angle bracket (>) may be represented using the string \" &gt; \", and must, for compatibility,\n                 * be escaped using either `&gt;` or a character reference when it appears in the string `]]>` in content,\n                 * when that string is not marking the end of a CDATA section.\n                 *\n                 * In the content of elements, character data is any string of characters\n                 * which does not contain the start-delimiter of any markup\n                 * and does not include the CDATA-section-close delimiter, `]]>`.\n                 *\n                 * @see https://www.w3.org/TR/xml/#NT-CharData\n                 * @see https://w3c.github.io/DOM-Parsing/#xml-serializing-a-text-node\n                 */\n                return buf.push(node.data.replace(/[<&>]/g, _xmlEncoder));\n            case CDATA_SECTION_NODE:\n                return buf.push('<![CDATA[', node.data, ']]>');\n            case COMMENT_NODE:\n                return buf.push(\"<!--\", node.data, \"-->\");\n            case DOCUMENT_TYPE_NODE:\n                var pubid = node.publicId;\n                var sysid = node.systemId;\n                buf.push('<!DOCTYPE ', node.name);\n                if (pubid) {\n                    buf.push(' PUBLIC ', pubid);\n                    if (sysid && sysid != '.') {\n                        buf.push(' ', sysid);\n                    }\n                    buf.push('>');\n                } else if (sysid && sysid != '.') {\n                    buf.push(' SYSTEM ', sysid, '>');\n                } else {\n                    var sub = node.internalSubset;\n                    if (sub) {\n                        buf.push(\" [\", sub, \"]\");\n                    }\n                    buf.push(\">\");\n                }\n                return;\n            case PROCESSING_INSTRUCTION_NODE:\n                return buf.push(\"<?\", node.target, \" \", node.data, \"?>\");\n            case ENTITY_REFERENCE_NODE:\n                return buf.push('&', node.nodeName, ';');\n            //case ENTITY_NODE:\n            //case NOTATION_NODE:\n            default:\n                buf.push('??', node.nodeName);\n        }\n    }\n    function importNode(doc, node, deep) {\n        var node2;\n        switch (node.nodeType) {\n            case ELEMENT_NODE:\n                node2 = node.cloneNode(false);\n                node2.ownerDocument = doc;\n            //var attrs = node2.attributes;\n            //var len = attrs.length;\n            //for(var i=0;i<len;i++){\n            //node2.setAttributeNodeNS(importNode(doc,attrs.item(i),deep));\n            //}\n            case DOCUMENT_FRAGMENT_NODE:\n                break;\n            case ATTRIBUTE_NODE:\n                deep = true;\n                break;\n            //case ENTITY_REFERENCE_NODE:\n            //case PROCESSING_INSTRUCTION_NODE:\n            ////case TEXT_NODE:\n            //case CDATA_SECTION_NODE:\n            //case COMMENT_NODE:\n            //\tdeep = false;\n            //\tbreak;\n            //case DOCUMENT_NODE:\n            //case DOCUMENT_TYPE_NODE:\n            //cannot be imported.\n            //case ENTITY_NODE:\n            //case NOTATION_NODE：\n            //can not hit in level3\n            //default:throw e;\n        }\n\n        if (!node2) {\n            node2 = node.cloneNode(false); //false\n        }\n\n        node2.ownerDocument = doc;\n        node2.parentNode = null;\n        if (deep) {\n            var child = node.firstChild;\n            while (child) {\n                node2.appendChild(importNode(doc, child, deep));\n                child = child.nextSibling;\n            }\n        }\n        return node2;\n    }\n    //\n    //var _relationMap = {firstChild:1,lastChild:1,previousSibling:1,nextSibling:1,\n    //\t\t\t\t\tattributes:1,childNodes:1,parentNode:1,documentElement:1,doctype,};\n    function cloneNode(doc, node, deep) {\n        var node2 = new node.constructor();\n        for (var n in node) {\n            if (Object.prototype.hasOwnProperty.call(node, n)) {\n                var v = node[n];\n                if (typeof v != \"object\") {\n                    if (v != node2[n]) {\n                        node2[n] = v;\n                    }\n                }\n            }\n        }\n        if (node.childNodes) {\n            node2.childNodes = new NodeList();\n        }\n        node2.ownerDocument = doc;\n        switch (node2.nodeType) {\n            case ELEMENT_NODE:\n                var attrs = node.attributes;\n                var attrs2 = node2.attributes = new NamedNodeMap();\n                var len = attrs.length;\n                attrs2._ownerElement = node2;\n                for (var i = 0; i < len; i++) {\n                    node2.setAttributeNode(cloneNode(doc, attrs.item(i), true));\n                }\n                break;\n            case ATTRIBUTE_NODE:\n                deep = true;\n        }\n        if (deep) {\n            var child = node.firstChild;\n            while (child) {\n                node2.appendChild(cloneNode(doc, child, deep));\n                child = child.nextSibling;\n            }\n        }\n        return node2;\n    }\n    function __set__(object, key, value) {\n        object[key] = value;\n    }\n    //do dynamic\n    try {\n        if (Object.defineProperty) {\n            Object.defineProperty(LiveNodeList.prototype, 'length', {\n                get: function () {\n                    _updateLiveList(this);\n                    return this.$$length;\n                }\n            });\n            Object.defineProperty(Node.prototype, 'textContent', {\n                get: function () {\n                    return getTextContent(this);\n                },\n                set: function (data) {\n                    switch (this.nodeType) {\n                        case ELEMENT_NODE:\n                        case DOCUMENT_FRAGMENT_NODE:\n                            while (this.firstChild) {\n                                this.removeChild(this.firstChild);\n                            }\n                            if (data || String(data)) {\n                                this.appendChild(this.ownerDocument.createTextNode(data));\n                            }\n                            break;\n                        default:\n                            this.data = data;\n                            this.value = data;\n                            this.nodeValue = data;\n                    }\n                }\n            });\n            function getTextContent(node) {\n                switch (node.nodeType) {\n                    case ELEMENT_NODE:\n                    case DOCUMENT_FRAGMENT_NODE:\n                        var buf = [];\n                        node = node.firstChild;\n                        while (node) {\n                            if (node.nodeType !== 7 && node.nodeType !== 8) {\n                                buf.push(getTextContent(node));\n                            }\n                            node = node.nextSibling;\n                        }\n                        return buf.join('');\n                    default:\n                        return node.nodeValue;\n                }\n            }\n            __set__ = function (object, key, value) {\n                //console.log(value)\n                object['$$' + key] = value;\n            };\n        }\n    } catch (e) {//ie8\n    }\n\n    //if(typeof require == 'function'){\n    var DocumentType_1 = DocumentType;\n    var DOMException_1 = DOMException;\n    var DOMImplementation_1 = DOMImplementation$1;\n    var Element_1 = Element;\n    var Node_1 = Node;\n    var NodeList_1 = NodeList;\n    var XMLSerializer_1 = XMLSerializer;\n    //}\n\n    var dom = {\n        DocumentType: DocumentType_1,\n        DOMException: DOMException_1,\n        DOMImplementation: DOMImplementation_1,\n        Element: Element_1,\n        Node: Node_1,\n        NodeList: NodeList_1,\n        XMLSerializer: XMLSerializer_1\n    };\n\n    var entities = createCommonjsModule(function (module, exports) {\n        var freeze = conventions.freeze;\n\n        /**\n         * The entities that are predefined in every XML document.\n         *\n         * @see https://www.w3.org/TR/2006/REC-xml11-20060816/#sec-predefined-ent W3C XML 1.1\n         * @see https://www.w3.org/TR/2008/REC-xml-20081126/#sec-predefined-ent W3C XML 1.0\n         * @see https://en.wikipedia.org/wiki/List_of_XML_and_HTML_character_entity_references#Predefined_entities_in_XML Wikipedia\n         */\n        exports.XML_ENTITIES = freeze({\n            amp: '&',\n            apos: \"'\",\n            gt: '>',\n            lt: '<',\n            quot: '\"'\n        });\n\n        /**\n         * A map of currently 241 entities that are detected in an HTML document.\n         * They contain all entries from `XML_ENTITIES`.\n         *\n         * @see XML_ENTITIES\n         * @see DOMParser.parseFromString\n         * @see DOMImplementation.prototype.createHTMLDocument\n         * @see https://html.spec.whatwg.org/#named-character-references WHATWG HTML(5) Spec\n         * @see https://www.w3.org/TR/xml-entity-names/ W3C XML Entity Names\n         * @see https://www.w3.org/TR/html4/sgml/entities.html W3C HTML4/SGML\n         * @see https://en.wikipedia.org/wiki/List_of_XML_and_HTML_character_entity_references#Character_entity_references_in_HTML Wikipedia (HTML)\n         * @see https://en.wikipedia.org/wiki/List_of_XML_and_HTML_character_entity_references#Entities_representing_special_characters_in_XHTML Wikpedia (XHTML)\n         */\n        exports.HTML_ENTITIES = freeze({\n            lt: '<',\n            gt: '>',\n            amp: '&',\n            quot: '\"',\n            apos: \"'\",\n            Agrave: \"À\",\n            Aacute: \"Á\",\n            Acirc: \"Â\",\n            Atilde: \"Ã\",\n            Auml: \"Ä\",\n            Aring: \"Å\",\n            AElig: \"Æ\",\n            Ccedil: \"Ç\",\n            Egrave: \"È\",\n            Eacute: \"É\",\n            Ecirc: \"Ê\",\n            Euml: \"Ë\",\n            Igrave: \"Ì\",\n            Iacute: \"Í\",\n            Icirc: \"Î\",\n            Iuml: \"Ï\",\n            ETH: \"Ð\",\n            Ntilde: \"Ñ\",\n            Ograve: \"Ò\",\n            Oacute: \"Ó\",\n            Ocirc: \"Ô\",\n            Otilde: \"Õ\",\n            Ouml: \"Ö\",\n            Oslash: \"Ø\",\n            Ugrave: \"Ù\",\n            Uacute: \"Ú\",\n            Ucirc: \"Û\",\n            Uuml: \"Ü\",\n            Yacute: \"Ý\",\n            THORN: \"Þ\",\n            szlig: \"ß\",\n            agrave: \"à\",\n            aacute: \"á\",\n            acirc: \"â\",\n            atilde: \"ã\",\n            auml: \"ä\",\n            aring: \"å\",\n            aelig: \"æ\",\n            ccedil: \"ç\",\n            egrave: \"è\",\n            eacute: \"é\",\n            ecirc: \"ê\",\n            euml: \"ë\",\n            igrave: \"ì\",\n            iacute: \"í\",\n            icirc: \"î\",\n            iuml: \"ï\",\n            eth: \"ð\",\n            ntilde: \"ñ\",\n            ograve: \"ò\",\n            oacute: \"ó\",\n            ocirc: \"ô\",\n            otilde: \"õ\",\n            ouml: \"ö\",\n            oslash: \"ø\",\n            ugrave: \"ù\",\n            uacute: \"ú\",\n            ucirc: \"û\",\n            uuml: \"ü\",\n            yacute: \"ý\",\n            thorn: \"þ\",\n            yuml: \"ÿ\",\n            nbsp: \"\\u00a0\",\n            iexcl: \"¡\",\n            cent: \"¢\",\n            pound: \"£\",\n            curren: \"¤\",\n            yen: \"¥\",\n            brvbar: \"¦\",\n            sect: \"§\",\n            uml: \"¨\",\n            copy: \"©\",\n            ordf: \"ª\",\n            laquo: \"«\",\n            not: \"¬\",\n            shy: \"­­\",\n            reg: \"®\",\n            macr: \"¯\",\n            deg: \"°\",\n            plusmn: \"±\",\n            sup2: \"²\",\n            sup3: \"³\",\n            acute: \"´\",\n            micro: \"µ\",\n            para: \"¶\",\n            middot: \"·\",\n            cedil: \"¸\",\n            sup1: \"¹\",\n            ordm: \"º\",\n            raquo: \"»\",\n            frac14: \"¼\",\n            frac12: \"½\",\n            frac34: \"¾\",\n            iquest: \"¿\",\n            times: \"×\",\n            divide: \"÷\",\n            forall: \"∀\",\n            part: \"∂\",\n            exist: \"∃\",\n            empty: \"∅\",\n            nabla: \"∇\",\n            isin: \"∈\",\n            notin: \"∉\",\n            ni: \"∋\",\n            prod: \"∏\",\n            sum: \"∑\",\n            minus: \"−\",\n            lowast: \"∗\",\n            radic: \"√\",\n            prop: \"∝\",\n            infin: \"∞\",\n            ang: \"∠\",\n            and: \"∧\",\n            or: \"∨\",\n            cap: \"∩\",\n            cup: \"∪\",\n            'int': \"∫\",\n            there4: \"∴\",\n            sim: \"∼\",\n            cong: \"≅\",\n            asymp: \"≈\",\n            ne: \"≠\",\n            equiv: \"≡\",\n            le: \"≤\",\n            ge: \"≥\",\n            sub: \"⊂\",\n            sup: \"⊃\",\n            nsub: \"⊄\",\n            sube: \"⊆\",\n            supe: \"⊇\",\n            oplus: \"⊕\",\n            otimes: \"⊗\",\n            perp: \"⊥\",\n            sdot: \"⋅\",\n            Alpha: \"Α\",\n            Beta: \"Β\",\n            Gamma: \"Γ\",\n            Delta: \"Δ\",\n            Epsilon: \"Ε\",\n            Zeta: \"Ζ\",\n            Eta: \"Η\",\n            Theta: \"Θ\",\n            Iota: \"Ι\",\n            Kappa: \"Κ\",\n            Lambda: \"Λ\",\n            Mu: \"Μ\",\n            Nu: \"Ν\",\n            Xi: \"Ξ\",\n            Omicron: \"Ο\",\n            Pi: \"Π\",\n            Rho: \"Ρ\",\n            Sigma: \"Σ\",\n            Tau: \"Τ\",\n            Upsilon: \"Υ\",\n            Phi: \"Φ\",\n            Chi: \"Χ\",\n            Psi: \"Ψ\",\n            Omega: \"Ω\",\n            alpha: \"α\",\n            beta: \"β\",\n            gamma: \"γ\",\n            delta: \"δ\",\n            epsilon: \"ε\",\n            zeta: \"ζ\",\n            eta: \"η\",\n            theta: \"θ\",\n            iota: \"ι\",\n            kappa: \"κ\",\n            lambda: \"λ\",\n            mu: \"μ\",\n            nu: \"ν\",\n            xi: \"ξ\",\n            omicron: \"ο\",\n            pi: \"π\",\n            rho: \"ρ\",\n            sigmaf: \"ς\",\n            sigma: \"σ\",\n            tau: \"τ\",\n            upsilon: \"υ\",\n            phi: \"φ\",\n            chi: \"χ\",\n            psi: \"ψ\",\n            omega: \"ω\",\n            thetasym: \"ϑ\",\n            upsih: \"ϒ\",\n            piv: \"ϖ\",\n            OElig: \"Œ\",\n            oelig: \"œ\",\n            Scaron: \"Š\",\n            scaron: \"š\",\n            Yuml: \"Ÿ\",\n            fnof: \"ƒ\",\n            circ: \"ˆ\",\n            tilde: \"˜\",\n            ensp: \" \",\n            emsp: \" \",\n            thinsp: \" \",\n            zwnj: \"‌\",\n            zwj: \"‍\",\n            lrm: \"‎\",\n            rlm: \"‏\",\n            ndash: \"–\",\n            mdash: \"—\",\n            lsquo: \"‘\",\n            rsquo: \"’\",\n            sbquo: \"‚\",\n            ldquo: \"“\",\n            rdquo: \"”\",\n            bdquo: \"„\",\n            dagger: \"†\",\n            Dagger: \"‡\",\n            bull: \"•\",\n            hellip: \"…\",\n            permil: \"‰\",\n            prime: \"′\",\n            Prime: \"″\",\n            lsaquo: \"‹\",\n            rsaquo: \"›\",\n            oline: \"‾\",\n            euro: \"€\",\n            trade: \"™\",\n            larr: \"←\",\n            uarr: \"↑\",\n            rarr: \"→\",\n            darr: \"↓\",\n            harr: \"↔\",\n            crarr: \"↵\",\n            lceil: \"⌈\",\n            rceil: \"⌉\",\n            lfloor: \"⌊\",\n            rfloor: \"⌋\",\n            loz: \"◊\",\n            spades: \"♠\",\n            clubs: \"♣\",\n            hearts: \"♥\",\n            diams: \"♦\"\n        });\n\n        /**\n         * @deprecated use `HTML_ENTITIES` instead\n         * @see HTML_ENTITIES\n         */\n        exports.entityMap = exports.HTML_ENTITIES;\n    });\n    entities.XML_ENTITIES;\n    entities.HTML_ENTITIES;\n    entities.entityMap;\n\n    var NAMESPACE$1 = conventions.NAMESPACE;\n\n    //[4]   \tNameStartChar\t   ::=   \t\":\" | [A-Z] | \"_\" | [a-z] | [#xC0-#xD6] | [#xD8-#xF6] | [#xF8-#x2FF] | [#x370-#x37D] | [#x37F-#x1FFF] | [#x200C-#x200D] | [#x2070-#x218F] | [#x2C00-#x2FEF] | [#x3001-#xD7FF] | [#xF900-#xFDCF] | [#xFDF0-#xFFFD] | [#x10000-#xEFFFF]\n    //[4a]   \tNameChar\t   ::=   \tNameStartChar | \"-\" | \".\" | [0-9] | #xB7 | [#x0300-#x036F] | [#x203F-#x2040]\n    //[5]   \tName\t   ::=   \tNameStartChar (NameChar)*\n    var nameStartChar = /[A-Z_a-z\\xC0-\\xD6\\xD8-\\xF6\\u00F8-\\u02FF\\u0370-\\u037D\\u037F-\\u1FFF\\u200C-\\u200D\\u2070-\\u218F\\u2C00-\\u2FEF\\u3001-\\uD7FF\\uF900-\\uFDCF\\uFDF0-\\uFFFD]/; //\\u10000-\\uEFFFF\n    var nameChar = new RegExp(\"[\\\\-\\\\.0-9\" + nameStartChar.source.slice(1, -1) + \"\\\\u00B7\\\\u0300-\\\\u036F\\\\u203F-\\\\u2040]\");\n    var tagNamePattern = new RegExp('^' + nameStartChar.source + nameChar.source + '*(?:\\:' + nameStartChar.source + nameChar.source + '*)?$');\n    //var tagNamePattern = /^[a-zA-Z_][\\w\\-\\.]*(?:\\:[a-zA-Z_][\\w\\-\\.]*)?$/\n    //var handlers = 'resolveEntity,getExternalSubset,characters,endDocument,endElement,endPrefixMapping,ignorableWhitespace,processingInstruction,setDocumentLocator,skippedEntity,startDocument,startElement,startPrefixMapping,notationDecl,unparsedEntityDecl,error,fatalError,warning,attributeDecl,elementDecl,externalEntityDecl,internalEntityDecl,comment,endCDATA,endDTD,endEntity,startCDATA,startDTD,startEntity'.split(',')\n\n    //S_TAG,\tS_ATTR,\tS_EQ,\tS_ATTR_NOQUOT_VALUE\n    //S_ATTR_SPACE,\tS_ATTR_END,\tS_TAG_SPACE, S_TAG_CLOSE\n    var S_TAG = 0; //tag name offerring\n    var S_ATTR = 1; //attr name offerring\n    var S_ATTR_SPACE = 2; //attr name end and space offer\n    var S_EQ = 3; //=space?\n    var S_ATTR_NOQUOT_VALUE = 4; //attr value(no quot value only)\n    var S_ATTR_END = 5; //attr value end and no space(quot end)\n    var S_TAG_SPACE = 6; //(attr value end || tag end ) && (space offer)\n    var S_TAG_CLOSE = 7; //closed el<el />\n\n    /**\n     * Creates an error that will not be caught by XMLReader aka the SAX parser.\n     *\n     * @param {string} message\n     * @param {any?} locator Optional, can provide details about the location in the source\n     * @constructor\n     */\n    function ParseError$1(message, locator) {\n        this.message = message;\n        this.locator = locator;\n        if (Error.captureStackTrace) Error.captureStackTrace(this, ParseError$1);\n    }\n    ParseError$1.prototype = new Error();\n    ParseError$1.prototype.name = ParseError$1.name;\n    function XMLReader$1() {}\n    XMLReader$1.prototype = {\n        parse: function (source, defaultNSMap, entityMap) {\n            var domBuilder = this.domBuilder;\n            domBuilder.startDocument();\n            _copy(defaultNSMap, defaultNSMap = {});\n            parse$1(source, defaultNSMap, entityMap, domBuilder, this.errorHandler);\n            domBuilder.endDocument();\n        }\n    };\n    function parse$1(source, defaultNSMapCopy, entityMap, domBuilder, errorHandler) {\n        function fixedFromCharCode(code) {\n            // String.prototype.fromCharCode does not supports\n            // > 2 bytes unicode chars directly\n            if (code > 0xffff) {\n                code -= 0x10000;\n                var surrogate1 = 0xd800 + (code >> 10),\n                    surrogate2 = 0xdc00 + (code & 0x3ff);\n                return String.fromCharCode(surrogate1, surrogate2);\n            } else {\n                return String.fromCharCode(code);\n            }\n        }\n        function entityReplacer(a) {\n            var k = a.slice(1, -1);\n            if (Object.hasOwnProperty.call(entityMap, k)) {\n                return entityMap[k];\n            } else if (k.charAt(0) === '#') {\n                return fixedFromCharCode(parseInt(k.substr(1).replace('x', '0x')));\n            } else {\n                errorHandler.error('entity not found:' + a);\n                return a;\n            }\n        }\n        function appendText(end) {\n            //has some bugs\n            if (end > start) {\n                var xt = source.substring(start, end).replace(/&#?\\w+;/g, entityReplacer);\n                locator && position(start);\n                domBuilder.characters(xt, 0, end - start);\n                start = end;\n            }\n        }\n        function position(p, m) {\n            while (p >= lineEnd && (m = linePattern.exec(source))) {\n                lineStart = m.index;\n                lineEnd = lineStart + m[0].length;\n                locator.lineNumber++;\n                //console.log('line++:',locator,startPos,endPos)\n            }\n\n            locator.columnNumber = p - lineStart + 1;\n        }\n        var lineStart = 0;\n        var lineEnd = 0;\n        var linePattern = /.*(?:\\r\\n?|\\n)|.*$/g;\n        var locator = domBuilder.locator;\n        var parseStack = [{\n            currentNSMap: defaultNSMapCopy\n        }];\n        var closeMap = {};\n        var start = 0;\n        while (true) {\n            try {\n                var tagStart = source.indexOf('<', start);\n                if (tagStart < 0) {\n                    if (!source.substr(start).match(/^\\s*$/)) {\n                        var doc = domBuilder.doc;\n                        var text = doc.createTextNode(source.substr(start));\n                        doc.appendChild(text);\n                        domBuilder.currentElement = text;\n                    }\n                    return;\n                }\n                if (tagStart > start) {\n                    appendText(tagStart);\n                }\n                switch (source.charAt(tagStart + 1)) {\n                    case '/':\n                        var end = source.indexOf('>', tagStart + 3);\n                        var tagName = source.substring(tagStart + 2, end).replace(/[ \\t\\n\\r]+$/g, '');\n                        var config = parseStack.pop();\n                        if (end < 0) {\n                            tagName = source.substring(tagStart + 2).replace(/[\\s<].*/, '');\n                            errorHandler.error(\"end tag name: \" + tagName + ' is not complete:' + config.tagName);\n                            end = tagStart + 1 + tagName.length;\n                        } else if (tagName.match(/\\s</)) {\n                            tagName = tagName.replace(/[\\s<].*/, '');\n                            errorHandler.error(\"end tag name: \" + tagName + ' maybe not complete');\n                            end = tagStart + 1 + tagName.length;\n                        }\n                        var localNSMap = config.localNSMap;\n                        var endMatch = config.tagName == tagName;\n                        var endIgnoreCaseMach = endMatch || config.tagName && config.tagName.toLowerCase() == tagName.toLowerCase();\n                        if (endIgnoreCaseMach) {\n                            domBuilder.endElement(config.uri, config.localName, tagName);\n                            if (localNSMap) {\n                                for (var prefix in localNSMap) {\n                                    if (Object.prototype.hasOwnProperty.call(localNSMap, prefix)) {\n                                        domBuilder.endPrefixMapping(prefix);\n                                    }\n                                }\n                            }\n                            if (!endMatch) {\n                                errorHandler.fatalError(\"end tag name: \" + tagName + ' is not match the current start tagName:' + config.tagName); // No known test case\n                            }\n                        } else {\n                            parseStack.push(config);\n                        }\n                        end++;\n                        break;\n                    // end elment\n                    case '?':\n                        // <?...?>\n                        locator && position(tagStart);\n                        end = parseInstruction(source, tagStart, domBuilder);\n                        break;\n                    case '!':\n                        // <!doctype,<![CDATA,<!--\n                        locator && position(tagStart);\n                        end = parseDCC(source, tagStart, domBuilder, errorHandler);\n                        break;\n                    default:\n                        locator && position(tagStart);\n                        var el = new ElementAttributes();\n                        var currentNSMap = parseStack[parseStack.length - 1].currentNSMap;\n                        //elStartEnd\n                        var end = parseElementStartPart(source, tagStart, el, currentNSMap, entityReplacer, errorHandler);\n                        var len = el.length;\n                        if (!el.closed && fixSelfClosed(source, end, el.tagName, closeMap)) {\n                            el.closed = true;\n                            if (!entityMap.nbsp) {\n                                errorHandler.warning('unclosed xml attribute');\n                            }\n                        }\n                        if (locator && len) {\n                            var locator2 = copyLocator(locator, {});\n                            //try{//attribute position fixed\n                            for (var i = 0; i < len; i++) {\n                                var a = el[i];\n                                position(a.offset);\n                                a.locator = copyLocator(locator, {});\n                            }\n                            domBuilder.locator = locator2;\n                            if (appendElement$1(el, domBuilder, currentNSMap)) {\n                                parseStack.push(el);\n                            }\n                            domBuilder.locator = locator;\n                        } else {\n                            if (appendElement$1(el, domBuilder, currentNSMap)) {\n                                parseStack.push(el);\n                            }\n                        }\n                        if (NAMESPACE$1.isHTML(el.uri) && !el.closed) {\n                            end = parseHtmlSpecialContent(source, end, el.tagName, entityReplacer, domBuilder);\n                        } else {\n                            end++;\n                        }\n                }\n            } catch (e) {\n                if (e instanceof ParseError$1) {\n                    throw e;\n                }\n                errorHandler.error('element parse error: ' + e);\n                end = -1;\n            }\n            if (end > start) {\n                start = end;\n            } else {\n                //TODO: 这里有可能sax回退，有位置错误风险\n                appendText(Math.max(tagStart, start) + 1);\n            }\n        }\n    }\n    function copyLocator(f, t) {\n        t.lineNumber = f.lineNumber;\n        t.columnNumber = f.columnNumber;\n        return t;\n    }\n\n    /**\n     * @see #appendElement(source,elStartEnd,el,selfClosed,entityReplacer,domBuilder,parseStack);\n     * @return end of the elementStartPart(end of elementEndPart for selfClosed el)\n     */\n    function parseElementStartPart(source, start, el, currentNSMap, entityReplacer, errorHandler) {\n        /**\n         * @param {string} qname\n         * @param {string} value\n         * @param {number} startIndex\n         */\n        function addAttribute(qname, value, startIndex) {\n            if (el.attributeNames.hasOwnProperty(qname)) {\n                errorHandler.fatalError('Attribute ' + qname + ' redefined');\n            }\n            el.addValue(qname,\n                // @see https://www.w3.org/TR/xml/#AVNormalize\n                // since the xmldom sax parser does not \"interpret\" DTD the following is not implemented:\n                // - recursive replacement of (DTD) entity references\n                // - trimming and collapsing multiple spaces into a single one for attributes that are not of type CDATA\n                value.replace(/[\\t\\n\\r]/g, ' ').replace(/&#?\\w+;/g, entityReplacer), startIndex);\n        }\n        var attrName;\n        var value;\n        var p = ++start;\n        var s = S_TAG; //status\n        while (true) {\n            var c = source.charAt(p);\n            switch (c) {\n                case '=':\n                    if (s === S_ATTR) {\n                        //attrName\n                        attrName = source.slice(start, p);\n                        s = S_EQ;\n                    } else if (s === S_ATTR_SPACE) {\n                        s = S_EQ;\n                    } else {\n                        //fatalError: equal must after attrName or space after attrName\n                        throw new Error('attribute equal must after attrName'); // No known test case\n                    }\n\n                    break;\n                case '\\'':\n                case '\"':\n                    if (s === S_EQ || s === S_ATTR //|| s == S_ATTR_SPACE\n                    ) {\n                        //equal\n                        if (s === S_ATTR) {\n                            errorHandler.warning('attribute value must after \"=\"');\n                            attrName = source.slice(start, p);\n                        }\n                        start = p + 1;\n                        p = source.indexOf(c, start);\n                        if (p > 0) {\n                            value = source.slice(start, p);\n                            addAttribute(attrName, value, start - 1);\n                            s = S_ATTR_END;\n                        } else {\n                            //fatalError: no end quot match\n                            throw new Error('attribute value no end \\'' + c + '\\' match');\n                        }\n                    } else if (s == S_ATTR_NOQUOT_VALUE) {\n                        value = source.slice(start, p);\n                        addAttribute(attrName, value, start);\n                        errorHandler.warning('attribute \"' + attrName + '\" missed start quot(' + c + ')!!');\n                        start = p + 1;\n                        s = S_ATTR_END;\n                    } else {\n                        //fatalError: no equal before\n                        throw new Error('attribute value must after \"=\"'); // No known test case\n                    }\n\n                    break;\n                case '/':\n                    switch (s) {\n                        case S_TAG:\n                            el.setTagName(source.slice(start, p));\n                        case S_ATTR_END:\n                        case S_TAG_SPACE:\n                        case S_TAG_CLOSE:\n                            s = S_TAG_CLOSE;\n                            el.closed = true;\n                        case S_ATTR_NOQUOT_VALUE:\n                        case S_ATTR:\n                        case S_ATTR_SPACE:\n                            break;\n                        //case S_EQ:\n                        default:\n                            throw new Error(\"attribute invalid close char('/')\");\n                        // No known test case\n                    }\n\n                    break;\n                case '':\n                    //end document\n                    errorHandler.error('unexpected end of input');\n                    if (s == S_TAG) {\n                        el.setTagName(source.slice(start, p));\n                    }\n                    return p;\n                case '>':\n                    switch (s) {\n                        case S_TAG:\n                            el.setTagName(source.slice(start, p));\n                        case S_ATTR_END:\n                        case S_TAG_SPACE:\n                        case S_TAG_CLOSE:\n                            break;\n                        //normal\n                        case S_ATTR_NOQUOT_VALUE: //Compatible state\n                        case S_ATTR:\n                            value = source.slice(start, p);\n                            if (value.slice(-1) === '/') {\n                                el.closed = true;\n                                value = value.slice(0, -1);\n                            }\n                        case S_ATTR_SPACE:\n                            if (s === S_ATTR_SPACE) {\n                                value = attrName;\n                            }\n                            if (s == S_ATTR_NOQUOT_VALUE) {\n                                errorHandler.warning('attribute \"' + value + '\" missed quot(\")!');\n                                addAttribute(attrName, value, start);\n                            } else {\n                                if (!NAMESPACE$1.isHTML(currentNSMap['']) || !value.match(/^(?:disabled|checked|selected)$/i)) {\n                                    errorHandler.warning('attribute \"' + value + '\" missed value!! \"' + value + '\" instead!!');\n                                }\n                                addAttribute(value, value, start);\n                            }\n                            break;\n                        case S_EQ:\n                            throw new Error('attribute value missed!!');\n                    }\n                    //\t\t\tconsole.log(tagName,tagNamePattern,tagNamePattern.test(tagName))\n                    return p;\n                /*xml space '\\x20' | #x9 | #xD | #xA; */\n                case '\\u0080':\n                    c = ' ';\n                default:\n                    if (c <= ' ') {\n                        //space\n                        switch (s) {\n                            case S_TAG:\n                                el.setTagName(source.slice(start, p)); //tagName\n                                s = S_TAG_SPACE;\n                                break;\n                            case S_ATTR:\n                                attrName = source.slice(start, p);\n                                s = S_ATTR_SPACE;\n                                break;\n                            case S_ATTR_NOQUOT_VALUE:\n                                var value = source.slice(start, p);\n                                errorHandler.warning('attribute \"' + value + '\" missed quot(\")!!');\n                                addAttribute(attrName, value, start);\n                            case S_ATTR_END:\n                                s = S_TAG_SPACE;\n                                break;\n                            //case S_TAG_SPACE:\n                            //case S_EQ:\n                            //case S_ATTR_SPACE:\n                            //\tvoid();break;\n                            //case S_TAG_CLOSE:\n                            //ignore warning\n                        }\n                    } else {\n                        //not space\n                        //S_TAG,\tS_ATTR,\tS_EQ,\tS_ATTR_NOQUOT_VALUE\n                        //S_ATTR_SPACE,\tS_ATTR_END,\tS_TAG_SPACE, S_TAG_CLOSE\n                        switch (s) {\n                            //case S_TAG:void();break;\n                            //case S_ATTR:void();break;\n                            //case S_ATTR_NOQUOT_VALUE:void();break;\n                            case S_ATTR_SPACE:\n                                el.tagName;\n                                if (!NAMESPACE$1.isHTML(currentNSMap['']) || !attrName.match(/^(?:disabled|checked|selected)$/i)) {\n                                    errorHandler.warning('attribute \"' + attrName + '\" missed value!! \"' + attrName + '\" instead2!!');\n                                }\n                                addAttribute(attrName, attrName, start);\n                                start = p;\n                                s = S_ATTR;\n                                break;\n                            case S_ATTR_END:\n                                errorHandler.warning('attribute space is required\"' + attrName + '\"!!');\n                            case S_TAG_SPACE:\n                                s = S_ATTR;\n                                start = p;\n                                break;\n                            case S_EQ:\n                                s = S_ATTR_NOQUOT_VALUE;\n                                start = p;\n                                break;\n                            case S_TAG_CLOSE:\n                                throw new Error(\"elements closed character '/' and '>' must be connected to\");\n                        }\n                    }\n            } //end outer switch\n            //console.log('p++',p)\n            p++;\n        }\n    }\n    /**\n     * @return true if has new namespace define\n     */\n    function appendElement$1(el, domBuilder, currentNSMap) {\n        var tagName = el.tagName;\n        var localNSMap = null;\n        //var currentNSMap = parseStack[parseStack.length-1].currentNSMap;\n        var i = el.length;\n        while (i--) {\n            var a = el[i];\n            var qName = a.qName;\n            var value = a.value;\n            var nsp = qName.indexOf(':');\n            if (nsp > 0) {\n                var prefix = a.prefix = qName.slice(0, nsp);\n                var localName = qName.slice(nsp + 1);\n                var nsPrefix = prefix === 'xmlns' && localName;\n            } else {\n                localName = qName;\n                prefix = null;\n                nsPrefix = qName === 'xmlns' && '';\n            }\n            //can not set prefix,because prefix !== ''\n            a.localName = localName;\n            //prefix == null for no ns prefix attribute\n            if (nsPrefix !== false) {\n                //hack!!\n                if (localNSMap == null) {\n                    localNSMap = {};\n                    //console.log(currentNSMap,0)\n                    _copy(currentNSMap, currentNSMap = {});\n                    //console.log(currentNSMap,1)\n                }\n\n                currentNSMap[nsPrefix] = localNSMap[nsPrefix] = value;\n                a.uri = NAMESPACE$1.XMLNS;\n                domBuilder.startPrefixMapping(nsPrefix, value);\n            }\n        }\n        var i = el.length;\n        while (i--) {\n            a = el[i];\n            var prefix = a.prefix;\n            if (prefix) {\n                //no prefix attribute has no namespace\n                if (prefix === 'xml') {\n                    a.uri = NAMESPACE$1.XML;\n                }\n                if (prefix !== 'xmlns') {\n                    a.uri = currentNSMap[prefix || ''];\n\n                    //{console.log('###'+a.qName,domBuilder.locator.systemId+'',currentNSMap,a.uri)}\n                }\n            }\n        }\n\n        var nsp = tagName.indexOf(':');\n        if (nsp > 0) {\n            prefix = el.prefix = tagName.slice(0, nsp);\n            localName = el.localName = tagName.slice(nsp + 1);\n        } else {\n            prefix = null; //important!!\n            localName = el.localName = tagName;\n        }\n        //no prefix element has default namespace\n        var ns = el.uri = currentNSMap[prefix || ''];\n        domBuilder.startElement(ns, localName, tagName, el);\n        //endPrefixMapping and startPrefixMapping have not any help for dom builder\n        //localNSMap = null\n        if (el.closed) {\n            domBuilder.endElement(ns, localName, tagName);\n            if (localNSMap) {\n                for (prefix in localNSMap) {\n                    if (Object.prototype.hasOwnProperty.call(localNSMap, prefix)) {\n                        domBuilder.endPrefixMapping(prefix);\n                    }\n                }\n            }\n        } else {\n            el.currentNSMap = currentNSMap;\n            el.localNSMap = localNSMap;\n            //parseStack.push(el);\n            return true;\n        }\n    }\n    function parseHtmlSpecialContent(source, elStartEnd, tagName, entityReplacer, domBuilder) {\n        if (/^(?:script|textarea)$/i.test(tagName)) {\n            var elEndStart = source.indexOf('</' + tagName + '>', elStartEnd);\n            var text = source.substring(elStartEnd + 1, elEndStart);\n            if (/[&<]/.test(text)) {\n                if (/^script$/i.test(tagName)) {\n                    //if(!/\\]\\]>/.test(text)){\n                    //lexHandler.startCDATA();\n                    domBuilder.characters(text, 0, text.length);\n                    //lexHandler.endCDATA();\n                    return elEndStart;\n                    //}\n                } //}else{//text area\n                text = text.replace(/&#?\\w+;/g, entityReplacer);\n                domBuilder.characters(text, 0, text.length);\n                return elEndStart;\n                //}\n            }\n        }\n\n        return elStartEnd + 1;\n    }\n    function fixSelfClosed(source, elStartEnd, tagName, closeMap) {\n        //if(tagName in closeMap){\n        var pos = closeMap[tagName];\n        if (pos == null) {\n            //console.log(tagName)\n            pos = source.lastIndexOf('</' + tagName + '>');\n            if (pos < elStartEnd) {\n                //忘记闭合\n                pos = source.lastIndexOf('</' + tagName);\n            }\n            closeMap[tagName] = pos;\n        }\n        return pos < elStartEnd;\n        //}\n    }\n\n    function _copy(source, target) {\n        for (var n in source) {\n            if (Object.prototype.hasOwnProperty.call(source, n)) {\n                target[n] = source[n];\n            }\n        }\n    }\n    function parseDCC(source, start, domBuilder, errorHandler) {\n        //sure start with '<!'\n        var next = source.charAt(start + 2);\n        switch (next) {\n            case '-':\n                if (source.charAt(start + 3) === '-') {\n                    var end = source.indexOf('-->', start + 4);\n                    //append comment source.substring(4,end)//<!--\n                    if (end > start) {\n                        domBuilder.comment(source, start + 4, end - start - 4);\n                        return end + 3;\n                    } else {\n                        errorHandler.error(\"Unclosed comment\");\n                        return -1;\n                    }\n                } else {\n                    //error\n                    return -1;\n                }\n            default:\n                if (source.substr(start + 3, 6) == 'CDATA[') {\n                    var end = source.indexOf(']]>', start + 9);\n                    domBuilder.startCDATA();\n                    domBuilder.characters(source, start + 9, end - start - 9);\n                    domBuilder.endCDATA();\n                    return end + 3;\n                }\n                //<!DOCTYPE\n                //startDTD(java.lang.String name, java.lang.String publicId, java.lang.String systemId)\n                var matchs = split(source, start);\n                var len = matchs.length;\n                if (len > 1 && /!doctype/i.test(matchs[0][0])) {\n                    var name = matchs[1][0];\n                    var pubid = false;\n                    var sysid = false;\n                    if (len > 3) {\n                        if (/^public$/i.test(matchs[2][0])) {\n                            pubid = matchs[3][0];\n                            sysid = len > 4 && matchs[4][0];\n                        } else if (/^system$/i.test(matchs[2][0])) {\n                            sysid = matchs[3][0];\n                        }\n                    }\n                    var lastMatch = matchs[len - 1];\n                    domBuilder.startDTD(name, pubid, sysid);\n                    domBuilder.endDTD();\n                    return lastMatch.index + lastMatch[0].length;\n                }\n        }\n        return -1;\n    }\n    function parseInstruction(source, start, domBuilder) {\n        var end = source.indexOf('?>', start);\n        if (end) {\n            var match = source.substring(start, end).match(/^<\\?(\\S*)\\s*([\\s\\S]*?)\\s*$/);\n            if (match) {\n                match[0].length;\n                domBuilder.processingInstruction(match[1], match[2]);\n                return end + 2;\n            } else {\n                //error\n                return -1;\n            }\n        }\n        return -1;\n    }\n    function ElementAttributes() {\n        this.attributeNames = {};\n    }\n    ElementAttributes.prototype = {\n        setTagName: function (tagName) {\n            if (!tagNamePattern.test(tagName)) {\n                throw new Error('invalid tagName:' + tagName);\n            }\n            this.tagName = tagName;\n        },\n        addValue: function (qName, value, offset) {\n            if (!tagNamePattern.test(qName)) {\n                throw new Error('invalid attribute:' + qName);\n            }\n            this.attributeNames[qName] = this.length;\n            this[this.length++] = {\n                qName: qName,\n                value: value,\n                offset: offset\n            };\n        },\n        length: 0,\n        getLocalName: function (i) {\n            return this[i].localName;\n        },\n        getLocator: function (i) {\n            return this[i].locator;\n        },\n        getQName: function (i) {\n            return this[i].qName;\n        },\n        getURI: function (i) {\n            return this[i].uri;\n        },\n        getValue: function (i) {\n            return this[i].value;\n        }\n        //\t,getIndex:function(uri, localName)){\n        //\t\tif(localName){\n        //\n        //\t\t}else{\n        //\t\t\tvar qName = uri\n        //\t\t}\n        //\t},\n        //\tgetValue:function(){return this.getValue(this.getIndex.apply(this,arguments))},\n        //\tgetType:function(uri,localName){}\n        //\tgetType:function(i){},\n    };\n\n    function split(source, start) {\n        var match;\n        var buf = [];\n        var reg = /'[^']+'|\"[^\"]+\"|[^\\s<>\\/=]+=?|(\\/?\\s*>|<)/g;\n        reg.lastIndex = start;\n        reg.exec(source); //skip <\n        while (match = reg.exec(source)) {\n            buf.push(match);\n            if (match[1]) return buf;\n        }\n    }\n    var XMLReader_1 = XMLReader$1;\n    var ParseError_1 = ParseError$1;\n    var sax = {\n        XMLReader: XMLReader_1,\n        ParseError: ParseError_1\n    };\n\n    var DOMImplementation = dom.DOMImplementation;\n    var NAMESPACE = conventions.NAMESPACE;\n    var ParseError = sax.ParseError;\n    var XMLReader = sax.XMLReader;\n\n    /**\n     * Normalizes line ending according to https://www.w3.org/TR/xml11/#sec-line-ends:\n     *\n     * > XML parsed entities are often stored in computer files which,\n     * > for editing convenience, are organized into lines.\n     * > These lines are typically separated by some combination\n     * > of the characters CARRIAGE RETURN (#xD) and LINE FEED (#xA).\n     * >\n     * > To simplify the tasks of applications, the XML processor must behave\n     * > as if it normalized all line breaks in external parsed entities (including the document entity)\n     * > on input, before parsing, by translating all of the following to a single #xA character:\n     * >\n     * > 1. the two-character sequence #xD #xA\n     * > 2. the two-character sequence #xD #x85\n     * > 3. the single character #x85\n     * > 4. the single character #x2028\n     * > 5. any #xD character that is not immediately followed by #xA or #x85.\n     *\n     * @param {string} input\n     * @returns {string}\n     */\n    function normalizeLineEndings(input) {\n        return input.replace(/\\r[\\n\\u0085]/g, '\\n').replace(/[\\r\\u0085\\u2028]/g, '\\n');\n    }\n\n    /**\n     * @typedef Locator\n     * @property {number} [columnNumber]\n     * @property {number} [lineNumber]\n     */\n\n    /**\n     * @typedef DOMParserOptions\n     * @property {DOMHandler} [domBuilder]\n     * @property {Function} [errorHandler]\n     * @property {(string) => string} [normalizeLineEndings] used to replace line endings before parsing\n     * \t\t\t\t\t\tdefaults to `normalizeLineEndings`\n     * @property {Locator} [locator]\n     * @property {Record<string, string>} [xmlns]\n     *\n     * @see normalizeLineEndings\n     */\n\n    /**\n     * The DOMParser interface provides the ability to parse XML or HTML source code\n     * from a string into a DOM `Document`.\n     *\n     * _xmldom is different from the spec in that it allows an `options` parameter,\n     * to override the default behavior._\n     *\n     * @param {DOMParserOptions} [options]\n     * @constructor\n     *\n     * @see https://developer.mozilla.org/en-US/docs/Web/API/DOMParser\n     * @see https://html.spec.whatwg.org/multipage/dynamic-markup-insertion.html#dom-parsing-and-serialization\n     */\n    function DOMParser$1(options) {\n        this.options = options || {\n            locator: {}\n        };\n    }\n    DOMParser$1.prototype.parseFromString = function (source, mimeType) {\n        var options = this.options;\n        var sax = new XMLReader();\n        var domBuilder = options.domBuilder || new DOMHandler(); //contentHandler and LexicalHandler\n        var errorHandler = options.errorHandler;\n        var locator = options.locator;\n        var defaultNSMap = options.xmlns || {};\n        var isHTML = /\\/x?html?$/.test(mimeType); //mimeType.toLowerCase().indexOf('html') > -1;\n        var entityMap = isHTML ? entities.HTML_ENTITIES : entities.XML_ENTITIES;\n        if (locator) {\n            domBuilder.setDocumentLocator(locator);\n        }\n        sax.errorHandler = buildErrorHandler(errorHandler, domBuilder, locator);\n        sax.domBuilder = options.domBuilder || domBuilder;\n        if (isHTML) {\n            defaultNSMap[''] = NAMESPACE.HTML;\n        }\n        defaultNSMap.xml = defaultNSMap.xml || NAMESPACE.XML;\n        var normalize = options.normalizeLineEndings || normalizeLineEndings;\n        if (source && typeof source === 'string') {\n            sax.parse(normalize(source), defaultNSMap, entityMap);\n        } else {\n            sax.errorHandler.error('invalid doc source');\n        }\n        return domBuilder.doc;\n    };\n    function buildErrorHandler(errorImpl, domBuilder, locator) {\n        if (!errorImpl) {\n            if (domBuilder instanceof DOMHandler) {\n                return domBuilder;\n            }\n            errorImpl = domBuilder;\n        }\n        var errorHandler = {};\n        var isCallback = errorImpl instanceof Function;\n        locator = locator || {};\n        function build(key) {\n            var fn = errorImpl[key];\n            if (!fn && isCallback) {\n                fn = errorImpl.length == 2 ? function (msg) {\n                    errorImpl(key, msg);\n                } : errorImpl;\n            }\n            errorHandler[key] = fn && function (msg) {\n                fn('[xmldom ' + key + ']\\t' + msg + _locator(locator));\n            } || function () {};\n        }\n        build('warning');\n        build('error');\n        build('fatalError');\n        return errorHandler;\n    }\n\n    //console.log('#\\n\\n\\n\\n\\n\\n\\n####')\n    /**\n     * +ContentHandler+ErrorHandler\n     * +LexicalHandler+EntityResolver2\n     * -DeclHandler-DTDHandler\n     *\n     * DefaultHandler:EntityResolver, DTDHandler, ContentHandler, ErrorHandler\n     * DefaultHandler2:DefaultHandler,LexicalHandler, DeclHandler, EntityResolver2\n     * @link http://www.saxproject.org/apidoc/org/xml/sax/helpers/DefaultHandler.html\n     */\n    function DOMHandler() {\n        this.cdata = false;\n    }\n    function position(locator, node) {\n        node.lineNumber = locator.lineNumber;\n        node.columnNumber = locator.columnNumber;\n    }\n    /**\n     * @see org.xml.sax.ContentHandler#startDocument\n     * @link http://www.saxproject.org/apidoc/org/xml/sax/ContentHandler.html\n     */\n    DOMHandler.prototype = {\n        startDocument: function () {\n            this.doc = new DOMImplementation().createDocument(null, null, null);\n            if (this.locator) {\n                this.doc.documentURI = this.locator.systemId;\n            }\n        },\n        startElement: function (namespaceURI, localName, qName, attrs) {\n            var doc = this.doc;\n            var el = doc.createElementNS(namespaceURI, qName || localName);\n            var len = attrs.length;\n            appendElement(this, el);\n            this.currentElement = el;\n            this.locator && position(this.locator, el);\n            for (var i = 0; i < len; i++) {\n                var namespaceURI = attrs.getURI(i);\n                var value = attrs.getValue(i);\n                var qName = attrs.getQName(i);\n                var attr = doc.createAttributeNS(namespaceURI, qName);\n                this.locator && position(attrs.getLocator(i), attr);\n                attr.value = attr.nodeValue = value;\n                el.setAttributeNode(attr);\n            }\n        },\n        endElement: function (namespaceURI, localName, qName) {\n            var current = this.currentElement;\n            current.tagName;\n            this.currentElement = current.parentNode;\n        },\n        startPrefixMapping: function (prefix, uri) {},\n        endPrefixMapping: function (prefix) {},\n        processingInstruction: function (target, data) {\n            var ins = this.doc.createProcessingInstruction(target, data);\n            this.locator && position(this.locator, ins);\n            appendElement(this, ins);\n        },\n        ignorableWhitespace: function (ch, start, length) {},\n        characters: function (chars, start, length) {\n            chars = _toString.apply(this, arguments);\n            //console.log(chars)\n            if (chars) {\n                if (this.cdata) {\n                    var charNode = this.doc.createCDATASection(chars);\n                } else {\n                    var charNode = this.doc.createTextNode(chars);\n                }\n                if (this.currentElement) {\n                    this.currentElement.appendChild(charNode);\n                } else if (/^\\s*$/.test(chars)) {\n                    this.doc.appendChild(charNode);\n                    //process xml\n                }\n\n                this.locator && position(this.locator, charNode);\n            }\n        },\n        skippedEntity: function (name) {},\n        endDocument: function () {\n            this.doc.normalize();\n        },\n        setDocumentLocator: function (locator) {\n            if (this.locator = locator) {\n                // && !('lineNumber' in locator)){\n                locator.lineNumber = 0;\n            }\n        },\n        //LexicalHandler\n        comment: function (chars, start, length) {\n            chars = _toString.apply(this, arguments);\n            var comm = this.doc.createComment(chars);\n            this.locator && position(this.locator, comm);\n            appendElement(this, comm);\n        },\n        startCDATA: function () {\n            //used in characters() methods\n            this.cdata = true;\n        },\n        endCDATA: function () {\n            this.cdata = false;\n        },\n        startDTD: function (name, publicId, systemId) {\n            var impl = this.doc.implementation;\n            if (impl && impl.createDocumentType) {\n                var dt = impl.createDocumentType(name, publicId, systemId);\n                this.locator && position(this.locator, dt);\n                appendElement(this, dt);\n                this.doc.doctype = dt;\n            }\n        },\n        /**\n         * @see org.xml.sax.ErrorHandler\n         * @link http://www.saxproject.org/apidoc/org/xml/sax/ErrorHandler.html\n         */\n        warning: function (error) {\n            console.warn('[xmldom warning]\\t' + error, _locator(this.locator));\n        },\n        error: function (error) {\n            console.error('[xmldom error]\\t' + error, _locator(this.locator));\n        },\n        fatalError: function (error) {\n            throw new ParseError(error, this.locator);\n        }\n    };\n    function _locator(l) {\n        if (l) {\n            return '\\n@' + (l.systemId || '') + '#[line:' + l.lineNumber + ',col:' + l.columnNumber + ']';\n        }\n    }\n    function _toString(chars, start, length) {\n        if (typeof chars == 'string') {\n            return chars.substr(start, length);\n        } else {\n            //java sax connect width xmldom on rhino(what about: \"? && !(chars instanceof String)\")\n            if (chars.length >= start + length || start) {\n                return new java.lang.String(chars, start, length) + '';\n            }\n            return chars;\n        }\n    }\n\n    /*\n   * @link http://www.saxproject.org/apidoc/org/xml/sax/ext/LexicalHandler.html\n   * used method of org.xml.sax.ext.LexicalHandler:\n   *  #comment(chars, start, length)\n   *  #startCDATA()\n   *  #endCDATA()\n   *  #startDTD(name, publicId, systemId)\n   *\n   *\n   * IGNORED method of org.xml.sax.ext.LexicalHandler:\n   *  #endDTD()\n   *  #startEntity(name)\n   *  #endEntity(name)\n   *\n   *\n   * @link http://www.saxproject.org/apidoc/org/xml/sax/ext/DeclHandler.html\n   * IGNORED method of org.xml.sax.ext.DeclHandler\n   * \t#attributeDecl(eName, aName, type, mode, value)\n   *  #elementDecl(name, model)\n   *  #externalEntityDecl(name, publicId, systemId)\n   *  #internalEntityDecl(name, value)\n   * @link http://www.saxproject.org/apidoc/org/xml/sax/ext/EntityResolver2.html\n   * IGNORED method of org.xml.sax.EntityResolver2\n   *  #resolveEntity(String name,String publicId,String baseURI,String systemId)\n   *  #resolveEntity(publicId, systemId)\n   *  #getExternalSubset(name, baseURI)\n   * @link http://www.saxproject.org/apidoc/org/xml/sax/DTDHandler.html\n   * IGNORED method of org.xml.sax.DTDHandler\n   *  #notationDecl(name, publicId, systemId) {};\n   *  #unparsedEntityDecl(name, publicId, systemId, notationName) {};\n   */\n    \"endDTD,startEntity,endEntity,attributeDecl,elementDecl,externalEntityDecl,internalEntityDecl,resolveEntity,getExternalSubset,notationDecl,unparsedEntityDecl\".replace(/\\w+/g, function (key) {\n        DOMHandler.prototype[key] = function () {\n            return null;\n        };\n    });\n\n    /* Private static helpers treated below as private instance methods, so don't need to add these to the public API; we might use a Relator to also get rid of non-standard public properties */\n    function appendElement(hander, node) {\n        if (!hander.currentElement) {\n            hander.doc.appendChild(node);\n        } else {\n            hander.currentElement.appendChild(node);\n        }\n    } //appendChild and setAttributeNS are preformance key\n\n    var __DOMHandler = DOMHandler;\n    var normalizeLineEndings_1 = normalizeLineEndings;\n    var DOMParser_1 = DOMParser$1;\n    var domParser = {\n        __DOMHandler: __DOMHandler,\n        normalizeLineEndings: normalizeLineEndings_1,\n        DOMParser: DOMParser_1\n    };\n\n    var DOMParser = domParser.DOMParser;\n\n    /*! @name mpd-parser @version 1.0.1 @license Apache-2.0 */\n    const isObject = obj => {\n        return !!obj && typeof obj === 'object';\n    };\n    const merge$1 = (...objects) => {\n        return objects.reduce((result, source) => {\n            if (typeof source !== 'object') {\n                return result;\n            }\n            Object.keys(source).forEach(key => {\n                if (Array.isArray(result[key]) && Array.isArray(source[key])) {\n                    result[key] = result[key].concat(source[key]);\n                } else if (isObject(result[key]) && isObject(source[key])) {\n                    result[key] = merge$1(result[key], source[key]);\n                } else {\n                    result[key] = source[key];\n                }\n            });\n            return result;\n        }, {});\n    };\n    const values = o => Object.keys(o).map(k => o[k]);\n    const range = (start, end) => {\n        const result = [];\n        for (let i = start; i < end; i++) {\n            result.push(i);\n        }\n        return result;\n    };\n    const flatten = lists => lists.reduce((x, y) => x.concat(y), []);\n    const from = list => {\n        if (!list.length) {\n            return [];\n        }\n        const result = [];\n        for (let i = 0; i < list.length; i++) {\n            result.push(list[i]);\n        }\n        return result;\n    };\n    const findIndexes = (l, key) => l.reduce((a, e, i) => {\n        if (e[key]) {\n            a.push(i);\n        }\n        return a;\n    }, []);\n    /**\n     * Returns a union of the included lists provided each element can be identified by a key.\n     *\n     * @param {Array} list - list of lists to get the union of\n     * @param {Function} keyFunction - the function to use as a key for each element\n     *\n     * @return {Array} the union of the arrays\n     */\n\n    const union = (lists, keyFunction) => {\n        return values(lists.reduce((acc, list) => {\n            list.forEach(el => {\n                acc[keyFunction(el)] = el;\n            });\n            return acc;\n        }, {}));\n    };\n    var errors = {\n        INVALID_NUMBER_OF_PERIOD: 'INVALID_NUMBER_OF_PERIOD',\n        DASH_EMPTY_MANIFEST: 'DASH_EMPTY_MANIFEST',\n        DASH_INVALID_XML: 'DASH_INVALID_XML',\n        NO_BASE_URL: 'NO_BASE_URL',\n        MISSING_SEGMENT_INFORMATION: 'MISSING_SEGMENT_INFORMATION',\n        SEGMENT_TIME_UNSPECIFIED: 'SEGMENT_TIME_UNSPECIFIED',\n        UNSUPPORTED_UTC_TIMING_SCHEME: 'UNSUPPORTED_UTC_TIMING_SCHEME'\n    };\n\n    /**\n     * @typedef {Object} SingleUri\n     * @property {string} uri - relative location of segment\n     * @property {string} resolvedUri - resolved location of segment\n     * @property {Object} byterange - Object containing information on how to make byte range\n     *   requests following byte-range-spec per RFC2616.\n     * @property {String} byterange.length - length of range request\n     * @property {String} byterange.offset - byte offset of range request\n     *\n     * @see https://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.35.1\n     */\n\n    /**\n     * Converts a URLType node (5.3.9.2.3 Table 13) to a segment object\n     * that conforms to how m3u8-parser is structured\n     *\n     * @see https://github.com/videojs/m3u8-parser\n     *\n     * @param {string} baseUrl - baseUrl provided by <BaseUrl> nodes\n     * @param {string} source - source url for segment\n     * @param {string} range - optional range used for range calls,\n     *   follows  RFC 2616, Clause 14.35.1\n     * @return {SingleUri} full segment information transformed into a format similar\n     *   to m3u8-parser\n     */\n\n    const urlTypeToSegment = ({\n                                  baseUrl = '',\n                                  source = '',\n                                  range = '',\n                                  indexRange = ''\n                              }) => {\n        const segment = {\n            uri: source,\n            resolvedUri: resolveUrl$1(baseUrl || '', source)\n        };\n        if (range || indexRange) {\n            const rangeStr = range ? range : indexRange;\n            const ranges = rangeStr.split('-'); // default to parsing this as a BigInt if possible\n\n            let startRange = window.BigInt ? window.BigInt(ranges[0]) : parseInt(ranges[0], 10);\n            let endRange = window.BigInt ? window.BigInt(ranges[1]) : parseInt(ranges[1], 10); // convert back to a number if less than MAX_SAFE_INTEGER\n\n            if (startRange < Number.MAX_SAFE_INTEGER && typeof startRange === 'bigint') {\n                startRange = Number(startRange);\n            }\n            if (endRange < Number.MAX_SAFE_INTEGER && typeof endRange === 'bigint') {\n                endRange = Number(endRange);\n            }\n            let length;\n            if (typeof endRange === 'bigint' || typeof startRange === 'bigint') {\n                length = window.BigInt(endRange) - window.BigInt(startRange) + window.BigInt(1);\n            } else {\n                length = endRange - startRange + 1;\n            }\n            if (typeof length === 'bigint' && length < Number.MAX_SAFE_INTEGER) {\n                length = Number(length);\n            } // byterange should be inclusive according to\n            // RFC 2616, Clause 14.35.1\n\n            segment.byterange = {\n                length,\n                offset: startRange\n            };\n        }\n        return segment;\n    };\n    const byteRangeToString = byterange => {\n        // `endRange` is one less than `offset + length` because the HTTP range\n        // header uses inclusive ranges\n        let endRange;\n        if (typeof byterange.offset === 'bigint' || typeof byterange.length === 'bigint') {\n            endRange = window.BigInt(byterange.offset) + window.BigInt(byterange.length) - window.BigInt(1);\n        } else {\n            endRange = byterange.offset + byterange.length - 1;\n        }\n        return `${byterange.offset}-${endRange}`;\n    };\n\n    /**\n     * parse the end number attribue that can be a string\n     * number, or undefined.\n     *\n     * @param {string|number|undefined} endNumber\n     *        The end number attribute.\n     *\n     * @return {number|null}\n     *          The result of parsing the end number.\n     */\n\n    const parseEndNumber = endNumber => {\n        if (endNumber && typeof endNumber !== 'number') {\n            endNumber = parseInt(endNumber, 10);\n        }\n        if (isNaN(endNumber)) {\n            return null;\n        }\n        return endNumber;\n    };\n    /**\n     * Functions for calculating the range of available segments in static and dynamic\n     * manifests.\n     */\n\n    const segmentRange = {\n        /**\n         * Returns the entire range of available segments for a static MPD\n         *\n         * @param {Object} attributes\n         *        Inheritied MPD attributes\n         * @return {{ start: number, end: number }}\n         *         The start and end numbers for available segments\n         */\n        static(attributes) {\n            const {\n                duration,\n                timescale = 1,\n                sourceDuration,\n                periodDuration\n            } = attributes;\n            const endNumber = parseEndNumber(attributes.endNumber);\n            const segmentDuration = duration / timescale;\n            if (typeof endNumber === 'number') {\n                return {\n                    start: 0,\n                    end: endNumber\n                };\n            }\n            if (typeof periodDuration === 'number') {\n                return {\n                    start: 0,\n                    end: periodDuration / segmentDuration\n                };\n            }\n            return {\n                start: 0,\n                end: sourceDuration / segmentDuration\n            };\n        },\n        /**\n         * Returns the current live window range of available segments for a dynamic MPD\n         *\n         * @param {Object} attributes\n         *        Inheritied MPD attributes\n         * @return {{ start: number, end: number }}\n         *         The start and end numbers for available segments\n         */\n        dynamic(attributes) {\n            const {\n                NOW,\n                clientOffset,\n                availabilityStartTime,\n                timescale = 1,\n                duration,\n                periodStart = 0,\n                minimumUpdatePeriod = 0,\n                timeShiftBufferDepth = Infinity\n            } = attributes;\n            const endNumber = parseEndNumber(attributes.endNumber); // clientOffset is passed in at the top level of mpd-parser and is an offset calculated\n            // after retrieving UTC server time.\n\n            const now = (NOW + clientOffset) / 1000; // WC stands for Wall Clock.\n            // Convert the period start time to EPOCH.\n\n            const periodStartWC = availabilityStartTime + periodStart; // Period end in EPOCH is manifest's retrieval time + time until next update.\n\n            const periodEndWC = now + minimumUpdatePeriod;\n            const periodDuration = periodEndWC - periodStartWC;\n            const segmentCount = Math.ceil(periodDuration * timescale / duration);\n            const availableStart = Math.floor((now - periodStartWC - timeShiftBufferDepth) * timescale / duration);\n            const availableEnd = Math.floor((now - periodStartWC) * timescale / duration);\n            return {\n                start: Math.max(0, availableStart),\n                end: typeof endNumber === 'number' ? endNumber : Math.min(segmentCount, availableEnd)\n            };\n        }\n    };\n    /**\n     * Maps a range of numbers to objects with information needed to build the corresponding\n     * segment list\n     *\n     * @name toSegmentsCallback\n     * @function\n     * @param {number} number\n     *        Number of the segment\n     * @param {number} index\n     *        Index of the number in the range list\n     * @return {{ number: Number, duration: Number, timeline: Number, time: Number }}\n     *         Object with segment timing and duration info\n     */\n\n    /**\n     * Returns a callback for Array.prototype.map for mapping a range of numbers to\n     * information needed to build the segment list.\n     *\n     * @param {Object} attributes\n     *        Inherited MPD attributes\n     * @return {toSegmentsCallback}\n     *         Callback map function\n     */\n\n    const toSegments = attributes => number => {\n        const {\n            duration,\n            timescale = 1,\n            periodStart,\n            startNumber = 1\n        } = attributes;\n        return {\n            number: startNumber + number,\n            duration: duration / timescale,\n            timeline: periodStart,\n            time: number * duration\n        };\n    };\n    /**\n     * Returns a list of objects containing segment timing and duration info used for\n     * building the list of segments. This uses the @duration attribute specified\n     * in the MPD manifest to derive the range of segments.\n     *\n     * @param {Object} attributes\n     *        Inherited MPD attributes\n     * @return {{number: number, duration: number, time: number, timeline: number}[]}\n     *         List of Objects with segment timing and duration info\n     */\n\n    const parseByDuration = attributes => {\n        const {\n            type,\n            duration,\n            timescale = 1,\n            periodDuration,\n            sourceDuration\n        } = attributes;\n        const {\n            start,\n            end\n        } = segmentRange[type](attributes);\n        const segments = range(start, end).map(toSegments(attributes));\n        if (type === 'static') {\n            const index = segments.length - 1; // section is either a period or the full source\n\n            const sectionDuration = typeof periodDuration === 'number' ? periodDuration : sourceDuration; // final segment may be less than full segment duration\n\n            segments[index].duration = sectionDuration - duration / timescale * index;\n        }\n        return segments;\n    };\n\n    /**\n     * Translates SegmentBase into a set of segments.\n     * (DASH SPEC Section 5.3.9.3.2) contains a set of <SegmentURL> nodes.  Each\n     * node should be translated into segment.\n     *\n     * @param {Object} attributes\n     *   Object containing all inherited attributes from parent elements with attribute\n     *   names as keys\n     * @return {Object.<Array>} list of segments\n     */\n\n    const segmentsFromBase = attributes => {\n        const {\n            baseUrl,\n            initialization = {},\n            sourceDuration,\n            indexRange = '',\n            periodStart,\n            presentationTime,\n            number = 0,\n            duration\n        } = attributes; // base url is required for SegmentBase to work, per spec (Section 5.3.9.2.1)\n\n        if (!baseUrl) {\n            throw new Error(errors.NO_BASE_URL);\n        }\n        const initSegment = urlTypeToSegment({\n            baseUrl,\n            source: initialization.sourceURL,\n            range: initialization.range\n        });\n        const segment = urlTypeToSegment({\n            baseUrl,\n            source: baseUrl,\n            indexRange\n        });\n        segment.map = initSegment; // If there is a duration, use it, otherwise use the given duration of the source\n        // (since SegmentBase is only for one total segment)\n\n        if (duration) {\n            const segmentTimeInfo = parseByDuration(attributes);\n            if (segmentTimeInfo.length) {\n                segment.duration = segmentTimeInfo[0].duration;\n                segment.timeline = segmentTimeInfo[0].timeline;\n            }\n        } else if (sourceDuration) {\n            segment.duration = sourceDuration;\n            segment.timeline = periodStart;\n        } // If presentation time is provided, these segments are being generated by SIDX\n        // references, and should use the time provided. For the general case of SegmentBase,\n        // there should only be one segment in the period, so its presentation time is the same\n        // as its period start.\n\n        segment.presentationTime = presentationTime || periodStart;\n        segment.number = number;\n        return [segment];\n    };\n    /**\n     * Given a playlist, a sidx box, and a baseUrl, update the segment list of the playlist\n     * according to the sidx information given.\n     *\n     * playlist.sidx has metadadata about the sidx where-as the sidx param\n     * is the parsed sidx box itself.\n     *\n     * @param {Object} playlist the playlist to update the sidx information for\n     * @param {Object} sidx the parsed sidx box\n     * @return {Object} the playlist object with the updated sidx information\n     */\n\n    const addSidxSegmentsToPlaylist$1 = (playlist, sidx, baseUrl) => {\n        // Retain init segment information\n        const initSegment = playlist.sidx.map ? playlist.sidx.map : null; // Retain source duration from initial main manifest parsing\n\n        const sourceDuration = playlist.sidx.duration; // Retain source timeline\n\n        const timeline = playlist.timeline || 0;\n        const sidxByteRange = playlist.sidx.byterange;\n        const sidxEnd = sidxByteRange.offset + sidxByteRange.length; // Retain timescale of the parsed sidx\n\n        const timescale = sidx.timescale; // referenceType 1 refers to other sidx boxes\n\n        const mediaReferences = sidx.references.filter(r => r.referenceType !== 1);\n        const segments = [];\n        const type = playlist.endList ? 'static' : 'dynamic';\n        const periodStart = playlist.sidx.timeline;\n        let presentationTime = periodStart;\n        let number = playlist.mediaSequence || 0; // firstOffset is the offset from the end of the sidx box\n\n        let startIndex; // eslint-disable-next-line\n\n        if (typeof sidx.firstOffset === 'bigint') {\n            startIndex = window.BigInt(sidxEnd) + sidx.firstOffset;\n        } else {\n            startIndex = sidxEnd + sidx.firstOffset;\n        }\n        for (let i = 0; i < mediaReferences.length; i++) {\n            const reference = sidx.references[i]; // size of the referenced (sub)segment\n\n            const size = reference.referencedSize; // duration of the referenced (sub)segment, in  the  timescale\n            // this will be converted to seconds when generating segments\n\n            const duration = reference.subsegmentDuration; // should be an inclusive range\n\n            let endIndex; // eslint-disable-next-line\n\n            if (typeof startIndex === 'bigint') {\n                endIndex = startIndex + window.BigInt(size) - window.BigInt(1);\n            } else {\n                endIndex = startIndex + size - 1;\n            }\n            const indexRange = `${startIndex}-${endIndex}`;\n            const attributes = {\n                baseUrl,\n                timescale,\n                timeline,\n                periodStart,\n                presentationTime,\n                number,\n                duration,\n                sourceDuration,\n                indexRange,\n                type\n            };\n            const segment = segmentsFromBase(attributes)[0];\n            if (initSegment) {\n                segment.map = initSegment;\n            }\n            segments.push(segment);\n            if (typeof startIndex === 'bigint') {\n                startIndex += window.BigInt(size);\n            } else {\n                startIndex += size;\n            }\n            presentationTime += duration / timescale;\n            number++;\n        }\n        playlist.segments = segments;\n        return playlist;\n    };\n    const SUPPORTED_MEDIA_TYPES = ['AUDIO', 'SUBTITLES']; // allow one 60fps frame as leniency (arbitrarily chosen)\n\n    const TIME_FUDGE = 1 / 60;\n    /**\n     * Given a list of timelineStarts, combines, dedupes, and sorts them.\n     *\n     * @param {TimelineStart[]} timelineStarts - list of timeline starts\n     *\n     * @return {TimelineStart[]} the combined and deduped timeline starts\n     */\n\n    const getUniqueTimelineStarts = timelineStarts => {\n        return union(timelineStarts, ({\n                                          timeline\n                                      }) => timeline).sort((a, b) => a.timeline > b.timeline ? 1 : -1);\n    };\n    /**\n     * Finds the playlist with the matching NAME attribute.\n     *\n     * @param {Array} playlists - playlists to search through\n     * @param {string} name - the NAME attribute to search for\n     *\n     * @return {Object|null} the matching playlist object, or null\n     */\n\n    const findPlaylistWithName = (playlists, name) => {\n        for (let i = 0; i < playlists.length; i++) {\n            if (playlists[i].attributes.NAME === name) {\n                return playlists[i];\n            }\n        }\n        return null;\n    };\n    /**\n     * Gets a flattened array of media group playlists.\n     *\n     * @param {Object} manifest - the main manifest object\n     *\n     * @return {Array} the media group playlists\n     */\n\n    const getMediaGroupPlaylists = manifest => {\n        let mediaGroupPlaylists = [];\n        forEachMediaGroup$1(manifest, SUPPORTED_MEDIA_TYPES, (properties, type, group, label) => {\n            mediaGroupPlaylists = mediaGroupPlaylists.concat(properties.playlists || []);\n        });\n        return mediaGroupPlaylists;\n    };\n    /**\n     * Updates the playlist's media sequence numbers.\n     *\n     * @param {Object} config - options object\n     * @param {Object} config.playlist - the playlist to update\n     * @param {number} config.mediaSequence - the mediaSequence number to start with\n     */\n\n    const updateMediaSequenceForPlaylist = ({\n                                                playlist,\n                                                mediaSequence\n                                            }) => {\n        playlist.mediaSequence = mediaSequence;\n        playlist.segments.forEach((segment, index) => {\n            segment.number = playlist.mediaSequence + index;\n        });\n    };\n    /**\n     * Updates the media and discontinuity sequence numbers of newPlaylists given oldPlaylists\n     * and a complete list of timeline starts.\n     *\n     * If no matching playlist is found, only the discontinuity sequence number of the playlist\n     * will be updated.\n     *\n     * Since early available timelines are not supported, at least one segment must be present.\n     *\n     * @param {Object} config - options object\n     * @param {Object[]} oldPlaylists - the old playlists to use as a reference\n     * @param {Object[]} newPlaylists - the new playlists to update\n     * @param {Object} timelineStarts - all timelineStarts seen in the stream to this point\n     */\n\n    const updateSequenceNumbers = ({\n                                       oldPlaylists,\n                                       newPlaylists,\n                                       timelineStarts\n                                   }) => {\n        newPlaylists.forEach(playlist => {\n            playlist.discontinuitySequence = timelineStarts.findIndex(function ({\n                                                                                    timeline\n                                                                                }) {\n                return timeline === playlist.timeline;\n            }); // Playlists NAMEs come from DASH Representation IDs, which are mandatory\n            // (see ISO_23009-1-2012 5.3.5.2).\n            //\n            // If the same Representation existed in a prior Period, it will retain the same NAME.\n\n            const oldPlaylist = findPlaylistWithName(oldPlaylists, playlist.attributes.NAME);\n            if (!oldPlaylist) {\n                // Since this is a new playlist, the media sequence values can start from 0 without\n                // consequence.\n                return;\n            } // TODO better support for live SIDX\n            //\n            // As of this writing, mpd-parser does not support multiperiod SIDX (in live or VOD).\n            // This is evident by a playlist only having a single SIDX reference. In a multiperiod\n            // playlist there would need to be multiple SIDX references. In addition, live SIDX is\n            // not supported when the SIDX properties change on refreshes.\n            //\n            // In the future, if support needs to be added, the merging logic here can be called\n            // after SIDX references are resolved. For now, exit early to prevent exceptions being\n            // thrown due to undefined references.\n\n            if (playlist.sidx) {\n                return;\n            } // Since we don't yet support early available timelines, we don't need to support\n            // playlists with no segments.\n\n            const firstNewSegment = playlist.segments[0];\n            const oldMatchingSegmentIndex = oldPlaylist.segments.findIndex(function (oldSegment) {\n                return Math.abs(oldSegment.presentationTime - firstNewSegment.presentationTime) < TIME_FUDGE;\n            }); // No matching segment from the old playlist means the entire playlist was refreshed.\n            // In this case the media sequence should account for this update, and the new segments\n            // should be marked as discontinuous from the prior content, since the last prior\n            // timeline was removed.\n\n            if (oldMatchingSegmentIndex === -1) {\n                updateMediaSequenceForPlaylist({\n                    playlist,\n                    mediaSequence: oldPlaylist.mediaSequence + oldPlaylist.segments.length\n                });\n                playlist.segments[0].discontinuity = true;\n                playlist.discontinuityStarts.unshift(0); // No matching segment does not necessarily mean there's missing content.\n                //\n                // If the new playlist's timeline is the same as the last seen segment's timeline,\n                // then a discontinuity can be added to identify that there's potentially missing\n                // content. If there's no missing content, the discontinuity should still be rather\n                // harmless. It's possible that if segment durations are accurate enough, that the\n                // existence of a gap can be determined using the presentation times and durations,\n                // but if the segment timing info is off, it may introduce more problems than simply\n                // adding the discontinuity.\n                //\n                // If the new playlist's timeline is different from the last seen segment's timeline,\n                // then a discontinuity can be added to identify that this is the first seen segment\n                // of a new timeline. However, the logic at the start of this function that\n                // determined the disconinuity sequence by timeline index is now off by one (the\n                // discontinuity of the newest timeline hasn't yet fallen off the manifest...since\n                // we added it), so the disconinuity sequence must be decremented.\n                //\n                // A period may also have a duration of zero, so the case of no segments is handled\n                // here even though we don't yet support early available periods.\n\n                if (!oldPlaylist.segments.length && playlist.timeline > oldPlaylist.timeline || oldPlaylist.segments.length && playlist.timeline > oldPlaylist.segments[oldPlaylist.segments.length - 1].timeline) {\n                    playlist.discontinuitySequence--;\n                }\n                return;\n            } // If the first segment matched with a prior segment on a discontinuity (it's matching\n            // on the first segment of a period), then the discontinuitySequence shouldn't be the\n            // timeline's matching one, but instead should be the one prior, and the first segment\n            // of the new manifest should be marked with a discontinuity.\n            //\n            // The reason for this special case is that discontinuity sequence shows how many\n            // discontinuities have fallen off of the playlist, and discontinuities are marked on\n            // the first segment of a new \"timeline.\" Because of this, while DASH will retain that\n            // Period while the \"timeline\" exists, HLS keeps track of it via the discontinuity\n            // sequence, and that first segment is an indicator, but can be removed before that\n            // timeline is gone.\n\n            const oldMatchingSegment = oldPlaylist.segments[oldMatchingSegmentIndex];\n            if (oldMatchingSegment.discontinuity && !firstNewSegment.discontinuity) {\n                firstNewSegment.discontinuity = true;\n                playlist.discontinuityStarts.unshift(0);\n                playlist.discontinuitySequence--;\n            }\n            updateMediaSequenceForPlaylist({\n                playlist,\n                mediaSequence: oldPlaylist.segments[oldMatchingSegmentIndex].number\n            });\n        });\n    };\n    /**\n     * Given an old parsed manifest object and a new parsed manifest object, updates the\n     * sequence and timing values within the new manifest to ensure that it lines up with the\n     * old.\n     *\n     * @param {Array} oldManifest - the old main manifest object\n     * @param {Array} newManifest - the new main manifest object\n     *\n     * @return {Object} the updated new manifest object\n     */\n\n    const positionManifestOnTimeline = ({\n                                            oldManifest,\n                                            newManifest\n                                        }) => {\n        // Starting from v4.1.2 of the IOP, section 4.4.3.3 states:\n        //\n        // \"MPD@availabilityStartTime and Period@start shall not be changed over MPD updates.\"\n        //\n        // This was added from https://github.com/Dash-Industry-Forum/DASH-IF-IOP/issues/160\n        //\n        // Because of this change, and the difficulty of supporting periods with changing start\n        // times, periods with changing start times are not supported. This makes the logic much\n        // simpler, since periods with the same start time can be considerred the same period\n        // across refreshes.\n        //\n        // To give an example as to the difficulty of handling periods where the start time may\n        // change, if a single period manifest is refreshed with another manifest with a single\n        // period, and both the start and end times are increased, then the only way to determine\n        // if it's a new period or an old one that has changed is to look through the segments of\n        // each playlist and determine the presentation time bounds to find a match. In addition,\n        // if the period start changed to exceed the old period end, then there would be no\n        // match, and it would not be possible to determine whether the refreshed period is a new\n        // one or the old one.\n        const oldPlaylists = oldManifest.playlists.concat(getMediaGroupPlaylists(oldManifest));\n        const newPlaylists = newManifest.playlists.concat(getMediaGroupPlaylists(newManifest)); // Save all seen timelineStarts to the new manifest. Although this potentially means that\n        // there's a \"memory leak\" in that it will never stop growing, in reality, only a couple\n        // of properties are saved for each seen Period. Even long running live streams won't\n        // generate too many Periods, unless the stream is watched for decades. In the future,\n        // this can be optimized by mapping to discontinuity sequence numbers for each timeline,\n        // but it may not become an issue, and the additional info can be useful for debugging.\n\n        newManifest.timelineStarts = getUniqueTimelineStarts([oldManifest.timelineStarts, newManifest.timelineStarts]);\n        updateSequenceNumbers({\n            oldPlaylists,\n            newPlaylists,\n            timelineStarts: newManifest.timelineStarts\n        });\n        return newManifest;\n    };\n    const generateSidxKey = sidx => sidx && sidx.uri + '-' + byteRangeToString(sidx.byterange);\n    const mergeDiscontiguousPlaylists = playlists => {\n        const mergedPlaylists = values(playlists.reduce((acc, playlist) => {\n            // assuming playlist IDs are the same across periods\n            // TODO: handle multiperiod where representation sets are not the same\n            // across periods\n            const name = playlist.attributes.id + (playlist.attributes.lang || '');\n            if (!acc[name]) {\n                // First Period\n                acc[name] = playlist;\n                acc[name].attributes.timelineStarts = [];\n            } else {\n                // Subsequent Periods\n                if (playlist.segments) {\n                    // first segment of subsequent periods signal a discontinuity\n                    if (playlist.segments[0]) {\n                        playlist.segments[0].discontinuity = true;\n                    }\n                    acc[name].segments.push(...playlist.segments);\n                } // bubble up contentProtection, this assumes all DRM content\n                // has the same contentProtection\n\n                if (playlist.attributes.contentProtection) {\n                    acc[name].attributes.contentProtection = playlist.attributes.contentProtection;\n                }\n            }\n            acc[name].attributes.timelineStarts.push({\n                // Although they represent the same number, it's important to have both to make it\n                // compatible with HLS potentially having a similar attribute.\n                start: playlist.attributes.periodStart,\n                timeline: playlist.attributes.periodStart\n            });\n            return acc;\n        }, {}));\n        return mergedPlaylists.map(playlist => {\n            playlist.discontinuityStarts = findIndexes(playlist.segments || [], 'discontinuity');\n            return playlist;\n        });\n    };\n    const addSidxSegmentsToPlaylist = (playlist, sidxMapping) => {\n        const sidxKey = generateSidxKey(playlist.sidx);\n        const sidxMatch = sidxKey && sidxMapping[sidxKey] && sidxMapping[sidxKey].sidx;\n        if (sidxMatch) {\n            addSidxSegmentsToPlaylist$1(playlist, sidxMatch, playlist.sidx.resolvedUri);\n        }\n        return playlist;\n    };\n    const addSidxSegmentsToPlaylists = (playlists, sidxMapping = {}) => {\n        if (!Object.keys(sidxMapping).length) {\n            return playlists;\n        }\n        for (const i in playlists) {\n            playlists[i] = addSidxSegmentsToPlaylist(playlists[i], sidxMapping);\n        }\n        return playlists;\n    };\n    const formatAudioPlaylist = ({\n                                     attributes,\n                                     segments,\n                                     sidx,\n                                     mediaSequence,\n                                     discontinuitySequence,\n                                     discontinuityStarts\n                                 }, isAudioOnly) => {\n        const playlist = {\n            attributes: {\n                NAME: attributes.id,\n                BANDWIDTH: attributes.bandwidth,\n                CODECS: attributes.codecs,\n                ['PROGRAM-ID']: 1\n            },\n            uri: '',\n            endList: attributes.type === 'static',\n            timeline: attributes.periodStart,\n            resolvedUri: '',\n            targetDuration: attributes.duration,\n            discontinuitySequence,\n            discontinuityStarts,\n            timelineStarts: attributes.timelineStarts,\n            mediaSequence,\n            segments\n        };\n        if (attributes.contentProtection) {\n            playlist.contentProtection = attributes.contentProtection;\n        }\n        if (sidx) {\n            playlist.sidx = sidx;\n        }\n        if (isAudioOnly) {\n            playlist.attributes.AUDIO = 'audio';\n            playlist.attributes.SUBTITLES = 'subs';\n        }\n        return playlist;\n    };\n    const formatVttPlaylist = ({\n                                   attributes,\n                                   segments,\n                                   mediaSequence,\n                                   discontinuityStarts,\n                                   discontinuitySequence\n                               }) => {\n        if (typeof segments === 'undefined') {\n            // vtt tracks may use single file in BaseURL\n            segments = [{\n                uri: attributes.baseUrl,\n                timeline: attributes.periodStart,\n                resolvedUri: attributes.baseUrl || '',\n                duration: attributes.sourceDuration,\n                number: 0\n            }]; // targetDuration should be the same duration as the only segment\n\n            attributes.duration = attributes.sourceDuration;\n        }\n        const m3u8Attributes = {\n            NAME: attributes.id,\n            BANDWIDTH: attributes.bandwidth,\n            ['PROGRAM-ID']: 1\n        };\n        if (attributes.codecs) {\n            m3u8Attributes.CODECS = attributes.codecs;\n        }\n        return {\n            attributes: m3u8Attributes,\n            uri: '',\n            endList: attributes.type === 'static',\n            timeline: attributes.periodStart,\n            resolvedUri: attributes.baseUrl || '',\n            targetDuration: attributes.duration,\n            timelineStarts: attributes.timelineStarts,\n            discontinuityStarts,\n            discontinuitySequence,\n            mediaSequence,\n            segments\n        };\n    };\n    const organizeAudioPlaylists = (playlists, sidxMapping = {}, isAudioOnly = false) => {\n        let mainPlaylist;\n        const formattedPlaylists = playlists.reduce((a, playlist) => {\n            const role = playlist.attributes.role && playlist.attributes.role.value || '';\n            const language = playlist.attributes.lang || '';\n            let label = playlist.attributes.label || 'main';\n            if (language && !playlist.attributes.label) {\n                const roleLabel = role ? ` (${role})` : '';\n                label = `${playlist.attributes.lang}${roleLabel}`;\n            }\n            if (!a[label]) {\n                a[label] = {\n                    language,\n                    autoselect: true,\n                    default: role === 'main',\n                    playlists: [],\n                    uri: ''\n                };\n            }\n            const formatted = addSidxSegmentsToPlaylist(formatAudioPlaylist(playlist, isAudioOnly), sidxMapping);\n            a[label].playlists.push(formatted);\n            if (typeof mainPlaylist === 'undefined' && role === 'main') {\n                mainPlaylist = playlist;\n                mainPlaylist.default = true;\n            }\n            return a;\n        }, {}); // if no playlists have role \"main\", mark the first as main\n\n        if (!mainPlaylist) {\n            const firstLabel = Object.keys(formattedPlaylists)[0];\n            formattedPlaylists[firstLabel].default = true;\n        }\n        return formattedPlaylists;\n    };\n    const organizeVttPlaylists = (playlists, sidxMapping = {}) => {\n        return playlists.reduce((a, playlist) => {\n            const label = playlist.attributes.lang || 'text';\n            if (!a[label]) {\n                a[label] = {\n                    language: label,\n                    default: false,\n                    autoselect: false,\n                    playlists: [],\n                    uri: ''\n                };\n            }\n            a[label].playlists.push(addSidxSegmentsToPlaylist(formatVttPlaylist(playlist), sidxMapping));\n            return a;\n        }, {});\n    };\n    const organizeCaptionServices = captionServices => captionServices.reduce((svcObj, svc) => {\n        if (!svc) {\n            return svcObj;\n        }\n        svc.forEach(service => {\n            const {\n                channel,\n                language\n            } = service;\n            svcObj[language] = {\n                autoselect: false,\n                default: false,\n                instreamId: channel,\n                language\n            };\n            if (service.hasOwnProperty('aspectRatio')) {\n                svcObj[language].aspectRatio = service.aspectRatio;\n            }\n            if (service.hasOwnProperty('easyReader')) {\n                svcObj[language].easyReader = service.easyReader;\n            }\n            if (service.hasOwnProperty('3D')) {\n                svcObj[language]['3D'] = service['3D'];\n            }\n        });\n        return svcObj;\n    }, {});\n    const formatVideoPlaylist = ({\n                                     attributes,\n                                     segments,\n                                     sidx,\n                                     discontinuityStarts\n                                 }) => {\n        const playlist = {\n            attributes: {\n                NAME: attributes.id,\n                AUDIO: 'audio',\n                SUBTITLES: 'subs',\n                RESOLUTION: {\n                    width: attributes.width,\n                    height: attributes.height\n                },\n                CODECS: attributes.codecs,\n                BANDWIDTH: attributes.bandwidth,\n                ['PROGRAM-ID']: 1\n            },\n            uri: '',\n            endList: attributes.type === 'static',\n            timeline: attributes.periodStart,\n            resolvedUri: '',\n            targetDuration: attributes.duration,\n            discontinuityStarts,\n            timelineStarts: attributes.timelineStarts,\n            segments\n        };\n        if (attributes.frameRate) {\n            playlist.attributes['FRAME-RATE'] = attributes.frameRate;\n        }\n        if (attributes.contentProtection) {\n            playlist.contentProtection = attributes.contentProtection;\n        }\n        if (sidx) {\n            playlist.sidx = sidx;\n        }\n        return playlist;\n    };\n    const videoOnly = ({\n                           attributes\n                       }) => attributes.mimeType === 'video/mp4' || attributes.mimeType === 'video/webm' || attributes.contentType === 'video';\n    const audioOnly = ({\n                           attributes\n                       }) => attributes.mimeType === 'audio/mp4' || attributes.mimeType === 'audio/webm' || attributes.contentType === 'audio';\n    const vttOnly = ({\n                         attributes\n                     }) => attributes.mimeType === 'text/vtt' || attributes.contentType === 'text';\n    /**\n     * Contains start and timeline properties denoting a timeline start. For DASH, these will\n     * be the same number.\n     *\n     * @typedef {Object} TimelineStart\n     * @property {number} start - the start time of the timeline\n     * @property {number} timeline - the timeline number\n     */\n\n    /**\n     * Adds appropriate media and discontinuity sequence values to the segments and playlists.\n     *\n     * Throughout mpd-parser, the `number` attribute is used in relation to `startNumber`, a\n     * DASH specific attribute used in constructing segment URI's from templates. However, from\n     * an HLS perspective, the `number` attribute on a segment would be its `mediaSequence`\n     * value, which should start at the original media sequence value (or 0) and increment by 1\n     * for each segment thereafter. Since DASH's `startNumber` values are independent per\n     * period, it doesn't make sense to use it for `number`. Instead, assume everything starts\n     * from a 0 mediaSequence value and increment from there.\n     *\n     * Note that VHS currently doesn't use the `number` property, but it can be helpful for\n     * debugging and making sense of the manifest.\n     *\n     * For live playlists, to account for values increasing in manifests when periods are\n     * removed on refreshes, merging logic should be used to update the numbers to their\n     * appropriate values (to ensure they're sequential and increasing).\n     *\n     * @param {Object[]} playlists - the playlists to update\n     * @param {TimelineStart[]} timelineStarts - the timeline starts for the manifest\n     */\n\n    const addMediaSequenceValues = (playlists, timelineStarts) => {\n        // increment all segments sequentially\n        playlists.forEach(playlist => {\n            playlist.mediaSequence = 0;\n            playlist.discontinuitySequence = timelineStarts.findIndex(function ({\n                                                                                    timeline\n                                                                                }) {\n                return timeline === playlist.timeline;\n            });\n            if (!playlist.segments) {\n                return;\n            }\n            playlist.segments.forEach((segment, index) => {\n                segment.number = index;\n            });\n        });\n    };\n    /**\n     * Given a media group object, flattens all playlists within the media group into a single\n     * array.\n     *\n     * @param {Object} mediaGroupObject - the media group object\n     *\n     * @return {Object[]}\n     *         The media group playlists\n     */\n\n    const flattenMediaGroupPlaylists = mediaGroupObject => {\n        if (!mediaGroupObject) {\n            return [];\n        }\n        return Object.keys(mediaGroupObject).reduce((acc, label) => {\n            const labelContents = mediaGroupObject[label];\n            return acc.concat(labelContents.playlists);\n        }, []);\n    };\n    const toM3u8 = ({\n                        dashPlaylists,\n                        locations,\n                        sidxMapping = {},\n                        previousManifest\n                    }) => {\n        if (!dashPlaylists.length) {\n            return {};\n        } // grab all main manifest attributes\n\n        const {\n            sourceDuration: duration,\n            type,\n            suggestedPresentationDelay,\n            minimumUpdatePeriod\n        } = dashPlaylists[0].attributes;\n        const videoPlaylists = mergeDiscontiguousPlaylists(dashPlaylists.filter(videoOnly)).map(formatVideoPlaylist);\n        const audioPlaylists = mergeDiscontiguousPlaylists(dashPlaylists.filter(audioOnly));\n        const vttPlaylists = mergeDiscontiguousPlaylists(dashPlaylists.filter(vttOnly));\n        const captions = dashPlaylists.map(playlist => playlist.attributes.captionServices).filter(Boolean);\n        const manifest = {\n            allowCache: true,\n            discontinuityStarts: [],\n            segments: [],\n            endList: true,\n            mediaGroups: {\n                AUDIO: {},\n                VIDEO: {},\n                ['CLOSED-CAPTIONS']: {},\n                SUBTITLES: {}\n            },\n            uri: '',\n            duration,\n            playlists: addSidxSegmentsToPlaylists(videoPlaylists, sidxMapping)\n        };\n        if (minimumUpdatePeriod >= 0) {\n            manifest.minimumUpdatePeriod = minimumUpdatePeriod * 1000;\n        }\n        if (locations) {\n            manifest.locations = locations;\n        }\n        if (type === 'dynamic') {\n            manifest.suggestedPresentationDelay = suggestedPresentationDelay;\n        }\n        const isAudioOnly = manifest.playlists.length === 0;\n        const organizedAudioGroup = audioPlaylists.length ? organizeAudioPlaylists(audioPlaylists, sidxMapping, isAudioOnly) : null;\n        const organizedVttGroup = vttPlaylists.length ? organizeVttPlaylists(vttPlaylists, sidxMapping) : null;\n        const formattedPlaylists = videoPlaylists.concat(flattenMediaGroupPlaylists(organizedAudioGroup), flattenMediaGroupPlaylists(organizedVttGroup));\n        const playlistTimelineStarts = formattedPlaylists.map(({\n                                                                   timelineStarts\n                                                               }) => timelineStarts);\n        manifest.timelineStarts = getUniqueTimelineStarts(playlistTimelineStarts);\n        addMediaSequenceValues(formattedPlaylists, manifest.timelineStarts);\n        if (organizedAudioGroup) {\n            manifest.mediaGroups.AUDIO.audio = organizedAudioGroup;\n        }\n        if (organizedVttGroup) {\n            manifest.mediaGroups.SUBTITLES.subs = organizedVttGroup;\n        }\n        if (captions.length) {\n            manifest.mediaGroups['CLOSED-CAPTIONS'].cc = organizeCaptionServices(captions);\n        }\n        if (previousManifest) {\n            return positionManifestOnTimeline({\n                oldManifest: previousManifest,\n                newManifest: manifest\n            });\n        }\n        return manifest;\n    };\n\n    /**\n     * Calculates the R (repetition) value for a live stream (for the final segment\n     * in a manifest where the r value is negative 1)\n     *\n     * @param {Object} attributes\n     *        Object containing all inherited attributes from parent elements with attribute\n     *        names as keys\n     * @param {number} time\n     *        current time (typically the total time up until the final segment)\n     * @param {number} duration\n     *        duration property for the given <S />\n     *\n     * @return {number}\n     *        R value to reach the end of the given period\n     */\n    const getLiveRValue = (attributes, time, duration) => {\n        const {\n            NOW,\n            clientOffset,\n            availabilityStartTime,\n            timescale = 1,\n            periodStart = 0,\n            minimumUpdatePeriod = 0\n        } = attributes;\n        const now = (NOW + clientOffset) / 1000;\n        const periodStartWC = availabilityStartTime + periodStart;\n        const periodEndWC = now + minimumUpdatePeriod;\n        const periodDuration = periodEndWC - periodStartWC;\n        return Math.ceil((periodDuration * timescale - time) / duration);\n    };\n    /**\n     * Uses information provided by SegmentTemplate.SegmentTimeline to determine segment\n     * timing and duration\n     *\n     * @param {Object} attributes\n     *        Object containing all inherited attributes from parent elements with attribute\n     *        names as keys\n     * @param {Object[]} segmentTimeline\n     *        List of objects representing the attributes of each S element contained within\n     *\n     * @return {{number: number, duration: number, time: number, timeline: number}[]}\n     *         List of Objects with segment timing and duration info\n     */\n\n    const parseByTimeline = (attributes, segmentTimeline) => {\n        const {\n            type,\n            minimumUpdatePeriod = 0,\n            media = '',\n            sourceDuration,\n            timescale = 1,\n            startNumber = 1,\n            periodStart: timeline\n        } = attributes;\n        const segments = [];\n        let time = -1;\n        for (let sIndex = 0; sIndex < segmentTimeline.length; sIndex++) {\n            const S = segmentTimeline[sIndex];\n            const duration = S.d;\n            const repeat = S.r || 0;\n            const segmentTime = S.t || 0;\n            if (time < 0) {\n                // first segment\n                time = segmentTime;\n            }\n            if (segmentTime && segmentTime > time) {\n                // discontinuity\n                // TODO: How to handle this type of discontinuity\n                // timeline++ here would treat it like HLS discontuity and content would\n                // get appended without gap\n                // E.G.\n                //  <S t=\"0\" d=\"1\" />\n                //  <S d=\"1\" />\n                //  <S d=\"1\" />\n                //  <S t=\"5\" d=\"1\" />\n                // would have $Time$ values of [0, 1, 2, 5]\n                // should this be appened at time positions [0, 1, 2, 3],(#EXT-X-DISCONTINUITY)\n                // or [0, 1, 2, gap, gap, 5]? (#EXT-X-GAP)\n                // does the value of sourceDuration consider this when calculating arbitrary\n                // negative @r repeat value?\n                // E.G. Same elements as above with this added at the end\n                //  <S d=\"1\" r=\"-1\" />\n                //  with a sourceDuration of 10\n                // Would the 2 gaps be included in the time duration calculations resulting in\n                // 8 segments with $Time$ values of [0, 1, 2, 5, 6, 7, 8, 9] or 10 segments\n                // with $Time$ values of [0, 1, 2, 5, 6, 7, 8, 9, 10, 11] ?\n                time = segmentTime;\n            }\n            let count;\n            if (repeat < 0) {\n                const nextS = sIndex + 1;\n                if (nextS === segmentTimeline.length) {\n                    // last segment\n                    if (type === 'dynamic' && minimumUpdatePeriod > 0 && media.indexOf('$Number$') > 0) {\n                        count = getLiveRValue(attributes, time, duration);\n                    } else {\n                        // TODO: This may be incorrect depending on conclusion of TODO above\n                        count = (sourceDuration * timescale - time) / duration;\n                    }\n                } else {\n                    count = (segmentTimeline[nextS].t - time) / duration;\n                }\n            } else {\n                count = repeat + 1;\n            }\n            const end = startNumber + segments.length + count;\n            let number = startNumber + segments.length;\n            while (number < end) {\n                segments.push({\n                    number,\n                    duration: duration / timescale,\n                    time,\n                    timeline\n                });\n                time += duration;\n                number++;\n            }\n        }\n        return segments;\n    };\n    const identifierPattern = /\\$([A-z]*)(?:(%0)([0-9]+)d)?\\$/g;\n    /**\n     * Replaces template identifiers with corresponding values. To be used as the callback\n     * for String.prototype.replace\n     *\n     * @name replaceCallback\n     * @function\n     * @param {string} match\n     *        Entire match of identifier\n     * @param {string} identifier\n     *        Name of matched identifier\n     * @param {string} format\n     *        Format tag string. Its presence indicates that padding is expected\n     * @param {string} width\n     *        Desired length of the replaced value. Values less than this width shall be left\n     *        zero padded\n     * @return {string}\n     *         Replacement for the matched identifier\n     */\n\n    /**\n     * Returns a function to be used as a callback for String.prototype.replace to replace\n     * template identifiers\n     *\n     * @param {Obect} values\n     *        Object containing values that shall be used to replace known identifiers\n     * @param {number} values.RepresentationID\n     *        Value of the Representation@id attribute\n     * @param {number} values.Number\n     *        Number of the corresponding segment\n     * @param {number} values.Bandwidth\n     *        Value of the Representation@bandwidth attribute.\n     * @param {number} values.Time\n     *        Timestamp value of the corresponding segment\n     * @return {replaceCallback}\n     *         Callback to be used with String.prototype.replace to replace identifiers\n     */\n\n    const identifierReplacement = values => (match, identifier, format, width) => {\n        if (match === '$$') {\n            // escape sequence\n            return '$';\n        }\n        if (typeof values[identifier] === 'undefined') {\n            return match;\n        }\n        const value = '' + values[identifier];\n        if (identifier === 'RepresentationID') {\n            // Format tag shall not be present with RepresentationID\n            return value;\n        }\n        if (!format) {\n            width = 1;\n        } else {\n            width = parseInt(width, 10);\n        }\n        if (value.length >= width) {\n            return value;\n        }\n        return `${new Array(width - value.length + 1).join('0')}${value}`;\n    };\n    /**\n     * Constructs a segment url from a template string\n     *\n     * @param {string} url\n     *        Template string to construct url from\n     * @param {Obect} values\n     *        Object containing values that shall be used to replace known identifiers\n     * @param {number} values.RepresentationID\n     *        Value of the Representation@id attribute\n     * @param {number} values.Number\n     *        Number of the corresponding segment\n     * @param {number} values.Bandwidth\n     *        Value of the Representation@bandwidth attribute.\n     * @param {number} values.Time\n     *        Timestamp value of the corresponding segment\n     * @return {string}\n     *         Segment url with identifiers replaced\n     */\n\n    const constructTemplateUrl = (url, values) => url.replace(identifierPattern, identifierReplacement(values));\n    /**\n     * Generates a list of objects containing timing and duration information about each\n     * segment needed to generate segment uris and the complete segment object\n     *\n     * @param {Object} attributes\n     *        Object containing all inherited attributes from parent elements with attribute\n     *        names as keys\n     * @param {Object[]|undefined} segmentTimeline\n     *        List of objects representing the attributes of each S element contained within\n     *        the SegmentTimeline element\n     * @return {{number: number, duration: number, time: number, timeline: number}[]}\n     *         List of Objects with segment timing and duration info\n     */\n\n    const parseTemplateInfo = (attributes, segmentTimeline) => {\n        if (!attributes.duration && !segmentTimeline) {\n            // if neither @duration or SegmentTimeline are present, then there shall be exactly\n            // one media segment\n            return [{\n                number: attributes.startNumber || 1,\n                duration: attributes.sourceDuration,\n                time: 0,\n                timeline: attributes.periodStart\n            }];\n        }\n        if (attributes.duration) {\n            return parseByDuration(attributes);\n        }\n        return parseByTimeline(attributes, segmentTimeline);\n    };\n    /**\n     * Generates a list of segments using information provided by the SegmentTemplate element\n     *\n     * @param {Object} attributes\n     *        Object containing all inherited attributes from parent elements with attribute\n     *        names as keys\n     * @param {Object[]|undefined} segmentTimeline\n     *        List of objects representing the attributes of each S element contained within\n     *        the SegmentTimeline element\n     * @return {Object[]}\n     *         List of segment objects\n     */\n\n    const segmentsFromTemplate = (attributes, segmentTimeline) => {\n        const templateValues = {\n            RepresentationID: attributes.id,\n            Bandwidth: attributes.bandwidth || 0\n        };\n        const {\n            initialization = {\n                sourceURL: '',\n                range: ''\n            }\n        } = attributes;\n        const mapSegment = urlTypeToSegment({\n            baseUrl: attributes.baseUrl,\n            source: constructTemplateUrl(initialization.sourceURL, templateValues),\n            range: initialization.range\n        });\n        const segments = parseTemplateInfo(attributes, segmentTimeline);\n        return segments.map(segment => {\n            templateValues.Number = segment.number;\n            templateValues.Time = segment.time;\n            const uri = constructTemplateUrl(attributes.media || '', templateValues); // See DASH spec section 5.3.9.2.2\n            // - if timescale isn't present on any level, default to 1.\n\n            const timescale = attributes.timescale || 1; // - if presentationTimeOffset isn't present on any level, default to 0\n\n            const presentationTimeOffset = attributes.presentationTimeOffset || 0;\n            const presentationTime =\n                // Even if the @t attribute is not specified for the segment, segment.time is\n                // calculated in mpd-parser prior to this, so it's assumed to be available.\n                attributes.periodStart + (segment.time - presentationTimeOffset) / timescale;\n            const map = {\n                uri,\n                timeline: segment.timeline,\n                duration: segment.duration,\n                resolvedUri: resolveUrl$1(attributes.baseUrl || '', uri),\n                map: mapSegment,\n                number: segment.number,\n                presentationTime\n            };\n            return map;\n        });\n    };\n\n    /**\n     * Converts a <SegmentUrl> (of type URLType from the DASH spec 5.3.9.2 Table 14)\n     * to an object that matches the output of a segment in videojs/mpd-parser\n     *\n     * @param {Object} attributes\n     *   Object containing all inherited attributes from parent elements with attribute\n     *   names as keys\n     * @param {Object} segmentUrl\n     *   <SegmentURL> node to translate into a segment object\n     * @return {Object} translated segment object\n     */\n\n    const SegmentURLToSegmentObject = (attributes, segmentUrl) => {\n        const {\n            baseUrl,\n            initialization = {}\n        } = attributes;\n        const initSegment = urlTypeToSegment({\n            baseUrl,\n            source: initialization.sourceURL,\n            range: initialization.range\n        });\n        const segment = urlTypeToSegment({\n            baseUrl,\n            source: segmentUrl.media,\n            range: segmentUrl.mediaRange\n        });\n        segment.map = initSegment;\n        return segment;\n    };\n    /**\n     * Generates a list of segments using information provided by the SegmentList element\n     * SegmentList (DASH SPEC Section 5.3.9.3.2) contains a set of <SegmentURL> nodes.  Each\n     * node should be translated into segment.\n     *\n     * @param {Object} attributes\n     *   Object containing all inherited attributes from parent elements with attribute\n     *   names as keys\n     * @param {Object[]|undefined} segmentTimeline\n     *        List of objects representing the attributes of each S element contained within\n     *        the SegmentTimeline element\n     * @return {Object.<Array>} list of segments\n     */\n\n    const segmentsFromList = (attributes, segmentTimeline) => {\n        const {\n            duration,\n            segmentUrls = [],\n            periodStart\n        } = attributes; // Per spec (5.3.9.2.1) no way to determine segment duration OR\n        // if both SegmentTimeline and @duration are defined, it is outside of spec.\n\n        if (!duration && !segmentTimeline || duration && segmentTimeline) {\n            throw new Error(errors.SEGMENT_TIME_UNSPECIFIED);\n        }\n        const segmentUrlMap = segmentUrls.map(segmentUrlObject => SegmentURLToSegmentObject(attributes, segmentUrlObject));\n        let segmentTimeInfo;\n        if (duration) {\n            segmentTimeInfo = parseByDuration(attributes);\n        }\n        if (segmentTimeline) {\n            segmentTimeInfo = parseByTimeline(attributes, segmentTimeline);\n        }\n        const segments = segmentTimeInfo.map((segmentTime, index) => {\n            if (segmentUrlMap[index]) {\n                const segment = segmentUrlMap[index]; // See DASH spec section 5.3.9.2.2\n                // - if timescale isn't present on any level, default to 1.\n\n                const timescale = attributes.timescale || 1; // - if presentationTimeOffset isn't present on any level, default to 0\n\n                const presentationTimeOffset = attributes.presentationTimeOffset || 0;\n                segment.timeline = segmentTime.timeline;\n                segment.duration = segmentTime.duration;\n                segment.number = segmentTime.number;\n                segment.presentationTime = periodStart + (segmentTime.time - presentationTimeOffset) / timescale;\n                return segment;\n            } // Since we're mapping we should get rid of any blank segments (in case\n            // the given SegmentTimeline is handling for more elements than we have\n            // SegmentURLs for).\n        }).filter(segment => segment);\n        return segments;\n    };\n    const generateSegments = ({\n                                  attributes,\n                                  segmentInfo\n                              }) => {\n        let segmentAttributes;\n        let segmentsFn;\n        if (segmentInfo.template) {\n            segmentsFn = segmentsFromTemplate;\n            segmentAttributes = merge$1(attributes, segmentInfo.template);\n        } else if (segmentInfo.base) {\n            segmentsFn = segmentsFromBase;\n            segmentAttributes = merge$1(attributes, segmentInfo.base);\n        } else if (segmentInfo.list) {\n            segmentsFn = segmentsFromList;\n            segmentAttributes = merge$1(attributes, segmentInfo.list);\n        }\n        const segmentsInfo = {\n            attributes\n        };\n        if (!segmentsFn) {\n            return segmentsInfo;\n        }\n        const segments = segmentsFn(segmentAttributes, segmentInfo.segmentTimeline); // The @duration attribute will be used to determin the playlist's targetDuration which\n        // must be in seconds. Since we've generated the segment list, we no longer need\n        // @duration to be in @timescale units, so we can convert it here.\n\n        if (segmentAttributes.duration) {\n            const {\n                duration,\n                timescale = 1\n            } = segmentAttributes;\n            segmentAttributes.duration = duration / timescale;\n        } else if (segments.length) {\n            // if there is no @duration attribute, use the largest segment duration as\n            // as target duration\n            segmentAttributes.duration = segments.reduce((max, segment) => {\n                return Math.max(max, Math.ceil(segment.duration));\n            }, 0);\n        } else {\n            segmentAttributes.duration = 0;\n        }\n        segmentsInfo.attributes = segmentAttributes;\n        segmentsInfo.segments = segments; // This is a sidx box without actual segment information\n\n        if (segmentInfo.base && segmentAttributes.indexRange) {\n            segmentsInfo.sidx = segments[0];\n            segmentsInfo.segments = [];\n        }\n        return segmentsInfo;\n    };\n    const toPlaylists = representations => representations.map(generateSegments);\n    const findChildren = (element, name) => from(element.childNodes).filter(({\n                                                                                 tagName\n                                                                             }) => tagName === name);\n    const getContent = element => element.textContent.trim();\n\n    /**\n     * Converts the provided string that may contain a division operation to a number.\n     *\n     * @param {string} value - the provided string value\n     *\n     * @return {number} the parsed string value\n     */\n    const parseDivisionValue = value => {\n        return parseFloat(value.split('/').reduce((prev, current) => prev / current));\n    };\n    const parseDuration = str => {\n        const SECONDS_IN_YEAR = 365 * 24 * 60 * 60;\n        const SECONDS_IN_MONTH = 30 * 24 * 60 * 60;\n        const SECONDS_IN_DAY = 24 * 60 * 60;\n        const SECONDS_IN_HOUR = 60 * 60;\n        const SECONDS_IN_MIN = 60; // P10Y10M10DT10H10M10.1S\n\n        const durationRegex = /P(?:(\\d*)Y)?(?:(\\d*)M)?(?:(\\d*)D)?(?:T(?:(\\d*)H)?(?:(\\d*)M)?(?:([\\d.]*)S)?)?/;\n        const match = durationRegex.exec(str);\n        if (!match) {\n            return 0;\n        }\n        const [year, month, day, hour, minute, second] = match.slice(1);\n        return parseFloat(year || 0) * SECONDS_IN_YEAR + parseFloat(month || 0) * SECONDS_IN_MONTH + parseFloat(day || 0) * SECONDS_IN_DAY + parseFloat(hour || 0) * SECONDS_IN_HOUR + parseFloat(minute || 0) * SECONDS_IN_MIN + parseFloat(second || 0);\n    };\n    const parseDate = str => {\n        // Date format without timezone according to ISO 8601\n        // YYY-MM-DDThh:mm:ss.ssssss\n        const dateRegex = /^\\d+-\\d+-\\d+T\\d+:\\d+:\\d+(\\.\\d+)?$/; // If the date string does not specifiy a timezone, we must specifiy UTC. This is\n        // expressed by ending with 'Z'\n\n        if (dateRegex.test(str)) {\n            str += 'Z';\n        }\n        return Date.parse(str);\n    };\n    const parsers = {\n        /**\n         * Specifies the duration of the entire Media Presentation. Format is a duration string\n         * as specified in ISO 8601\n         *\n         * @param {string} value\n         *        value of attribute as a string\n         * @return {number}\n         *         The duration in seconds\n         */\n        mediaPresentationDuration(value) {\n            return parseDuration(value);\n        },\n        /**\n         * Specifies the Segment availability start time for all Segments referred to in this\n         * MPD. For a dynamic manifest, it specifies the anchor for the earliest availability\n         * time. Format is a date string as specified in ISO 8601\n         *\n         * @param {string} value\n         *        value of attribute as a string\n         * @return {number}\n         *         The date as seconds from unix epoch\n         */\n        availabilityStartTime(value) {\n            return parseDate(value) / 1000;\n        },\n        /**\n         * Specifies the smallest period between potential changes to the MPD. Format is a\n         * duration string as specified in ISO 8601\n         *\n         * @param {string} value\n         *        value of attribute as a string\n         * @return {number}\n         *         The duration in seconds\n         */\n        minimumUpdatePeriod(value) {\n            return parseDuration(value);\n        },\n        /**\n         * Specifies the suggested presentation delay. Format is a\n         * duration string as specified in ISO 8601\n         *\n         * @param {string} value\n         *        value of attribute as a string\n         * @return {number}\n         *         The duration in seconds\n         */\n        suggestedPresentationDelay(value) {\n            return parseDuration(value);\n        },\n        /**\n         * specifices the type of mpd. Can be either \"static\" or \"dynamic\"\n         *\n         * @param {string} value\n         *        value of attribute as a string\n         *\n         * @return {string}\n         *         The type as a string\n         */\n        type(value) {\n            return value;\n        },\n        /**\n         * Specifies the duration of the smallest time shifting buffer for any Representation\n         * in the MPD. Format is a duration string as specified in ISO 8601\n         *\n         * @param {string} value\n         *        value of attribute as a string\n         * @return {number}\n         *         The duration in seconds\n         */\n        timeShiftBufferDepth(value) {\n            return parseDuration(value);\n        },\n        /**\n         * Specifies the PeriodStart time of the Period relative to the availabilityStarttime.\n         * Format is a duration string as specified in ISO 8601\n         *\n         * @param {string} value\n         *        value of attribute as a string\n         * @return {number}\n         *         The duration in seconds\n         */\n        start(value) {\n            return parseDuration(value);\n        },\n        /**\n         * Specifies the width of the visual presentation\n         *\n         * @param {string} value\n         *        value of attribute as a string\n         * @return {number}\n         *         The parsed width\n         */\n        width(value) {\n            return parseInt(value, 10);\n        },\n        /**\n         * Specifies the height of the visual presentation\n         *\n         * @param {string} value\n         *        value of attribute as a string\n         * @return {number}\n         *         The parsed height\n         */\n        height(value) {\n            return parseInt(value, 10);\n        },\n        /**\n         * Specifies the bitrate of the representation\n         *\n         * @param {string} value\n         *        value of attribute as a string\n         * @return {number}\n         *         The parsed bandwidth\n         */\n        bandwidth(value) {\n            return parseInt(value, 10);\n        },\n        /**\n         * Specifies the frame rate of the representation\n         *\n         * @param {string} value\n         *        value of attribute as a string\n         * @return {number}\n         *         The parsed frame rate\n         */\n        frameRate(value) {\n            return parseDivisionValue(value);\n        },\n        /**\n         * Specifies the number of the first Media Segment in this Representation in the Period\n         *\n         * @param {string} value\n         *        value of attribute as a string\n         * @return {number}\n         *         The parsed number\n         */\n        startNumber(value) {\n            return parseInt(value, 10);\n        },\n        /**\n         * Specifies the timescale in units per seconds\n         *\n         * @param {string} value\n         *        value of attribute as a string\n         * @return {number}\n         *         The parsed timescale\n         */\n        timescale(value) {\n            return parseInt(value, 10);\n        },\n        /**\n         * Specifies the presentationTimeOffset.\n         *\n         * @param {string} value\n         *        value of the attribute as a string\n         *\n         * @return {number}\n         *         The parsed presentationTimeOffset\n         */\n        presentationTimeOffset(value) {\n            return parseInt(value, 10);\n        },\n        /**\n         * Specifies the constant approximate Segment duration\n         * NOTE: The <Period> element also contains an @duration attribute. This duration\n         *       specifies the duration of the Period. This attribute is currently not\n         *       supported by the rest of the parser, however we still check for it to prevent\n         *       errors.\n         *\n         * @param {string} value\n         *        value of attribute as a string\n         * @return {number}\n         *         The parsed duration\n         */\n        duration(value) {\n            const parsedValue = parseInt(value, 10);\n            if (isNaN(parsedValue)) {\n                return parseDuration(value);\n            }\n            return parsedValue;\n        },\n        /**\n         * Specifies the Segment duration, in units of the value of the @timescale.\n         *\n         * @param {string} value\n         *        value of attribute as a string\n         * @return {number}\n         *         The parsed duration\n         */\n        d(value) {\n            return parseInt(value, 10);\n        },\n        /**\n         * Specifies the MPD start time, in @timescale units, the first Segment in the series\n         * starts relative to the beginning of the Period\n         *\n         * @param {string} value\n         *        value of attribute as a string\n         * @return {number}\n         *         The parsed time\n         */\n        t(value) {\n            return parseInt(value, 10);\n        },\n        /**\n         * Specifies the repeat count of the number of following contiguous Segments with the\n         * same duration expressed by the value of @d\n         *\n         * @param {string} value\n         *        value of attribute as a string\n         * @return {number}\n         *         The parsed number\n         */\n        r(value) {\n            return parseInt(value, 10);\n        },\n        /**\n         * Default parser for all other attributes. Acts as a no-op and just returns the value\n         * as a string\n         *\n         * @param {string} value\n         *        value of attribute as a string\n         * @return {string}\n         *         Unparsed value\n         */\n        DEFAULT(value) {\n            return value;\n        }\n    };\n    /**\n     * Gets all the attributes and values of the provided node, parses attributes with known\n     * types, and returns an object with attribute names mapped to values.\n     *\n     * @param {Node} el\n     *        The node to parse attributes from\n     * @return {Object}\n     *         Object with all attributes of el parsed\n     */\n\n    const parseAttributes = el => {\n        if (!(el && el.attributes)) {\n            return {};\n        }\n        return from(el.attributes).reduce((a, e) => {\n            const parseFn = parsers[e.name] || parsers.DEFAULT;\n            a[e.name] = parseFn(e.value);\n            return a;\n        }, {});\n    };\n    const keySystemsMap = {\n        'urn:uuid:1077efec-c0b2-4d02-ace3-3c1e52e2fb4b': 'org.w3.clearkey',\n        'urn:uuid:edef8ba9-79d6-4ace-a3c8-27dcd51d21ed': 'com.widevine.alpha',\n        'urn:uuid:9a04f079-9840-4286-ab92-e65be0885f95': 'com.microsoft.playready',\n        'urn:uuid:f239e769-efa3-4850-9c16-a903c6932efb': 'com.adobe.primetime'\n    };\n    /**\n     * Builds a list of urls that is the product of the reference urls and BaseURL values\n     *\n     * @param {string[]} referenceUrls\n     *        List of reference urls to resolve to\n     * @param {Node[]} baseUrlElements\n     *        List of BaseURL nodes from the mpd\n     * @return {string[]}\n     *         List of resolved urls\n     */\n\n    const buildBaseUrls = (referenceUrls, baseUrlElements) => {\n        if (!baseUrlElements.length) {\n            return referenceUrls;\n        }\n        return flatten(referenceUrls.map(function (reference) {\n            return baseUrlElements.map(function (baseUrlElement) {\n                return resolveUrl$1(reference, getContent(baseUrlElement));\n            });\n        }));\n    };\n    /**\n     * Contains all Segment information for its containing AdaptationSet\n     *\n     * @typedef {Object} SegmentInformation\n     * @property {Object|undefined} template\n     *           Contains the attributes for the SegmentTemplate node\n     * @property {Object[]|undefined} segmentTimeline\n     *           Contains a list of atrributes for each S node within the SegmentTimeline node\n     * @property {Object|undefined} list\n     *           Contains the attributes for the SegmentList node\n     * @property {Object|undefined} base\n     *           Contains the attributes for the SegmentBase node\n     */\n\n    /**\n     * Returns all available Segment information contained within the AdaptationSet node\n     *\n     * @param {Node} adaptationSet\n     *        The AdaptationSet node to get Segment information from\n     * @return {SegmentInformation}\n     *         The Segment information contained within the provided AdaptationSet\n     */\n\n    const getSegmentInformation = adaptationSet => {\n        const segmentTemplate = findChildren(adaptationSet, 'SegmentTemplate')[0];\n        const segmentList = findChildren(adaptationSet, 'SegmentList')[0];\n        const segmentUrls = segmentList && findChildren(segmentList, 'SegmentURL').map(s => merge$1({\n            tag: 'SegmentURL'\n        }, parseAttributes(s)));\n        const segmentBase = findChildren(adaptationSet, 'SegmentBase')[0];\n        const segmentTimelineParentNode = segmentList || segmentTemplate;\n        const segmentTimeline = segmentTimelineParentNode && findChildren(segmentTimelineParentNode, 'SegmentTimeline')[0];\n        const segmentInitializationParentNode = segmentList || segmentBase || segmentTemplate;\n        const segmentInitialization = segmentInitializationParentNode && findChildren(segmentInitializationParentNode, 'Initialization')[0]; // SegmentTemplate is handled slightly differently, since it can have both\n        // @initialization and an <Initialization> node.  @initialization can be templated,\n        // while the node can have a url and range specified.  If the <SegmentTemplate> has\n        // both @initialization and an <Initialization> subelement we opt to override with\n        // the node, as this interaction is not defined in the spec.\n\n        const template = segmentTemplate && parseAttributes(segmentTemplate);\n        if (template && segmentInitialization) {\n            template.initialization = segmentInitialization && parseAttributes(segmentInitialization);\n        } else if (template && template.initialization) {\n            // If it is @initialization we convert it to an object since this is the format that\n            // later functions will rely on for the initialization segment.  This is only valid\n            // for <SegmentTemplate>\n            template.initialization = {\n                sourceURL: template.initialization\n            };\n        }\n        const segmentInfo = {\n            template,\n            segmentTimeline: segmentTimeline && findChildren(segmentTimeline, 'S').map(s => parseAttributes(s)),\n            list: segmentList && merge$1(parseAttributes(segmentList), {\n                segmentUrls,\n                initialization: parseAttributes(segmentInitialization)\n            }),\n            base: segmentBase && merge$1(parseAttributes(segmentBase), {\n                initialization: parseAttributes(segmentInitialization)\n            })\n        };\n        Object.keys(segmentInfo).forEach(key => {\n            if (!segmentInfo[key]) {\n                delete segmentInfo[key];\n            }\n        });\n        return segmentInfo;\n    };\n    /**\n     * Contains Segment information and attributes needed to construct a Playlist object\n     * from a Representation\n     *\n     * @typedef {Object} RepresentationInformation\n     * @property {SegmentInformation} segmentInfo\n     *           Segment information for this Representation\n     * @property {Object} attributes\n     *           Inherited attributes for this Representation\n     */\n\n    /**\n     * Maps a Representation node to an object containing Segment information and attributes\n     *\n     * @name inheritBaseUrlsCallback\n     * @function\n     * @param {Node} representation\n     *        Representation node from the mpd\n     * @return {RepresentationInformation}\n     *         Representation information needed to construct a Playlist object\n     */\n\n    /**\n     * Returns a callback for Array.prototype.map for mapping Representation nodes to\n     * Segment information and attributes using inherited BaseURL nodes.\n     *\n     * @param {Object} adaptationSetAttributes\n     *        Contains attributes inherited by the AdaptationSet\n     * @param {string[]} adaptationSetBaseUrls\n     *        Contains list of resolved base urls inherited by the AdaptationSet\n     * @param {SegmentInformation} adaptationSetSegmentInfo\n     *        Contains Segment information for the AdaptationSet\n     * @return {inheritBaseUrlsCallback}\n     *         Callback map function\n     */\n\n    const inheritBaseUrls = (adaptationSetAttributes, adaptationSetBaseUrls, adaptationSetSegmentInfo) => representation => {\n        const repBaseUrlElements = findChildren(representation, 'BaseURL');\n        const repBaseUrls = buildBaseUrls(adaptationSetBaseUrls, repBaseUrlElements);\n        const attributes = merge$1(adaptationSetAttributes, parseAttributes(representation));\n        const representationSegmentInfo = getSegmentInformation(representation);\n        return repBaseUrls.map(baseUrl => {\n            return {\n                segmentInfo: merge$1(adaptationSetSegmentInfo, representationSegmentInfo),\n                attributes: merge$1(attributes, {\n                    baseUrl\n                })\n            };\n        });\n    };\n    /**\n     * Tranforms a series of content protection nodes to\n     * an object containing pssh data by key system\n     *\n     * @param {Node[]} contentProtectionNodes\n     *        Content protection nodes\n     * @return {Object}\n     *        Object containing pssh data by key system\n     */\n\n    const generateKeySystemInformation = contentProtectionNodes => {\n        return contentProtectionNodes.reduce((acc, node) => {\n            const attributes = parseAttributes(node); // Although it could be argued that according to the UUID RFC spec the UUID string (a-f chars) should be generated\n            // as a lowercase string it also mentions it should be treated as case-insensitive on input. Since the key system\n            // UUIDs in the keySystemsMap are hardcoded as lowercase in the codebase there isn't any reason not to do\n            // .toLowerCase() on the input UUID string from the manifest (at least I could not think of one).\n\n            if (attributes.schemeIdUri) {\n                attributes.schemeIdUri = attributes.schemeIdUri.toLowerCase();\n            }\n            const keySystem = keySystemsMap[attributes.schemeIdUri];\n            if (keySystem) {\n                acc[keySystem] = {\n                    attributes\n                };\n                const psshNode = findChildren(node, 'cenc:pssh')[0];\n                if (psshNode) {\n                    const pssh = getContent(psshNode);\n                    acc[keySystem].pssh = pssh && decodeB64ToUint8Array(pssh);\n                }\n            }\n            return acc;\n        }, {});\n    }; // defined in ANSI_SCTE 214-1 2016\n\n    const parseCaptionServiceMetadata = service => {\n        // 608 captions\n        if (service.schemeIdUri === 'urn:scte:dash:cc:cea-608:2015') {\n            const values = typeof service.value !== 'string' ? [] : service.value.split(';');\n            return values.map(value => {\n                let channel;\n                let language; // default language to value\n\n                language = value;\n                if (/^CC\\d=/.test(value)) {\n                    [channel, language] = value.split('=');\n                } else if (/^CC\\d$/.test(value)) {\n                    channel = value;\n                }\n                return {\n                    channel,\n                    language\n                };\n            });\n        } else if (service.schemeIdUri === 'urn:scte:dash:cc:cea-708:2015') {\n            const values = typeof service.value !== 'string' ? [] : service.value.split(';');\n            return values.map(value => {\n                const flags = {\n                    // service or channel number 1-63\n                    'channel': undefined,\n                    // language is a 3ALPHA per ISO 639.2/B\n                    // field is required\n                    'language': undefined,\n                    // BIT 1/0 or ?\n                    // default value is 1, meaning 16:9 aspect ratio, 0 is 4:3, ? is unknown\n                    'aspectRatio': 1,\n                    // BIT 1/0\n                    // easy reader flag indicated the text is tailed to the needs of beginning readers\n                    // default 0, or off\n                    'easyReader': 0,\n                    // BIT 1/0\n                    // If 3d metadata is present (CEA-708.1) then 1\n                    // default 0\n                    '3D': 0\n                };\n                if (/=/.test(value)) {\n                    const [channel, opts = ''] = value.split('=');\n                    flags.channel = channel;\n                    flags.language = value;\n                    opts.split(',').forEach(opt => {\n                        const [name, val] = opt.split(':');\n                        if (name === 'lang') {\n                            flags.language = val; // er for easyReadery\n                        } else if (name === 'er') {\n                            flags.easyReader = Number(val); // war for wide aspect ratio\n                        } else if (name === 'war') {\n                            flags.aspectRatio = Number(val);\n                        } else if (name === '3D') {\n                            flags['3D'] = Number(val);\n                        }\n                    });\n                } else {\n                    flags.language = value;\n                }\n                if (flags.channel) {\n                    flags.channel = 'SERVICE' + flags.channel;\n                }\n                return flags;\n            });\n        }\n    };\n    /**\n     * Maps an AdaptationSet node to a list of Representation information objects\n     *\n     * @name toRepresentationsCallback\n     * @function\n     * @param {Node} adaptationSet\n     *        AdaptationSet node from the mpd\n     * @return {RepresentationInformation[]}\n     *         List of objects containing Representaion information\n     */\n\n    /**\n     * Returns a callback for Array.prototype.map for mapping AdaptationSet nodes to a list of\n     * Representation information objects\n     *\n     * @param {Object} periodAttributes\n     *        Contains attributes inherited by the Period\n     * @param {string[]} periodBaseUrls\n     *        Contains list of resolved base urls inherited by the Period\n     * @param {string[]} periodSegmentInfo\n     *        Contains Segment Information at the period level\n     * @return {toRepresentationsCallback}\n     *         Callback map function\n     */\n\n    const toRepresentations = (periodAttributes, periodBaseUrls, periodSegmentInfo) => adaptationSet => {\n        const adaptationSetAttributes = parseAttributes(adaptationSet);\n        const adaptationSetBaseUrls = buildBaseUrls(periodBaseUrls, findChildren(adaptationSet, 'BaseURL'));\n        const role = findChildren(adaptationSet, 'Role')[0];\n        const roleAttributes = {\n            role: parseAttributes(role)\n        };\n        let attrs = merge$1(periodAttributes, adaptationSetAttributes, roleAttributes);\n        const accessibility = findChildren(adaptationSet, 'Accessibility')[0];\n        const captionServices = parseCaptionServiceMetadata(parseAttributes(accessibility));\n        if (captionServices) {\n            attrs = merge$1(attrs, {\n                captionServices\n            });\n        }\n        const label = findChildren(adaptationSet, 'Label')[0];\n        if (label && label.childNodes.length) {\n            const labelVal = label.childNodes[0].nodeValue.trim();\n            attrs = merge$1(attrs, {\n                label: labelVal\n            });\n        }\n        const contentProtection = generateKeySystemInformation(findChildren(adaptationSet, 'ContentProtection'));\n        if (Object.keys(contentProtection).length) {\n            attrs = merge$1(attrs, {\n                contentProtection\n            });\n        }\n        const segmentInfo = getSegmentInformation(adaptationSet);\n        const representations = findChildren(adaptationSet, 'Representation');\n        const adaptationSetSegmentInfo = merge$1(periodSegmentInfo, segmentInfo);\n        return flatten(representations.map(inheritBaseUrls(attrs, adaptationSetBaseUrls, adaptationSetSegmentInfo)));\n    };\n    /**\n     * Contains all period information for mapping nodes onto adaptation sets.\n     *\n     * @typedef {Object} PeriodInformation\n     * @property {Node} period.node\n     *           Period node from the mpd\n     * @property {Object} period.attributes\n     *           Parsed period attributes from node plus any added\n     */\n\n    /**\n     * Maps a PeriodInformation object to a list of Representation information objects for all\n     * AdaptationSet nodes contained within the Period.\n     *\n     * @name toAdaptationSetsCallback\n     * @function\n     * @param {PeriodInformation} period\n     *        Period object containing necessary period information\n     * @param {number} periodStart\n     *        Start time of the Period within the mpd\n     * @return {RepresentationInformation[]}\n     *         List of objects containing Representaion information\n     */\n\n    /**\n     * Returns a callback for Array.prototype.map for mapping Period nodes to a list of\n     * Representation information objects\n     *\n     * @param {Object} mpdAttributes\n     *        Contains attributes inherited by the mpd\n     * @param {string[]} mpdBaseUrls\n     *        Contains list of resolved base urls inherited by the mpd\n     * @return {toAdaptationSetsCallback}\n     *         Callback map function\n     */\n\n    const toAdaptationSets = (mpdAttributes, mpdBaseUrls) => (period, index) => {\n        const periodBaseUrls = buildBaseUrls(mpdBaseUrls, findChildren(period.node, 'BaseURL'));\n        const periodAttributes = merge$1(mpdAttributes, {\n            periodStart: period.attributes.start\n        });\n        if (typeof period.attributes.duration === 'number') {\n            periodAttributes.periodDuration = period.attributes.duration;\n        }\n        const adaptationSets = findChildren(period.node, 'AdaptationSet');\n        const periodSegmentInfo = getSegmentInformation(period.node);\n        return flatten(adaptationSets.map(toRepresentations(periodAttributes, periodBaseUrls, periodSegmentInfo)));\n    };\n    /**\n     * Gets Period@start property for a given period.\n     *\n     * @param {Object} options\n     *        Options object\n     * @param {Object} options.attributes\n     *        Period attributes\n     * @param {Object} [options.priorPeriodAttributes]\n     *        Prior period attributes (if prior period is available)\n     * @param {string} options.mpdType\n     *        The MPD@type these periods came from\n     * @return {number|null}\n     *         The period start, or null if it's an early available period or error\n     */\n\n    const getPeriodStart = ({\n                                attributes,\n                                priorPeriodAttributes,\n                                mpdType\n                            }) => {\n        // Summary of period start time calculation from DASH spec section 5.3.2.1\n        //\n        // A period's start is the first period's start + time elapsed after playing all\n        // prior periods to this one. Periods continue one after the other in time (without\n        // gaps) until the end of the presentation.\n        //\n        // The value of Period@start should be:\n        // 1. if Period@start is present: value of Period@start\n        // 2. if previous period exists and it has @duration: previous Period@start +\n        //    previous Period@duration\n        // 3. if this is first period and MPD@type is 'static': 0\n        // 4. in all other cases, consider the period an \"early available period\" (note: not\n        //    currently supported)\n        // (1)\n        if (typeof attributes.start === 'number') {\n            return attributes.start;\n        } // (2)\n\n        if (priorPeriodAttributes && typeof priorPeriodAttributes.start === 'number' && typeof priorPeriodAttributes.duration === 'number') {\n            return priorPeriodAttributes.start + priorPeriodAttributes.duration;\n        } // (3)\n\n        if (!priorPeriodAttributes && mpdType === 'static') {\n            return 0;\n        } // (4)\n        // There is currently no logic for calculating the Period@start value if there is\n        // no Period@start or prior Period@start and Period@duration available. This is not made\n        // explicit by the DASH interop guidelines or the DASH spec, however, since there's\n        // nothing about any other resolution strategies, it's implied. Thus, this case should\n        // be considered an early available period, or error, and null should suffice for both\n        // of those cases.\n\n        return null;\n    };\n    /**\n     * Traverses the mpd xml tree to generate a list of Representation information objects\n     * that have inherited attributes from parent nodes\n     *\n     * @param {Node} mpd\n     *        The root node of the mpd\n     * @param {Object} options\n     *        Available options for inheritAttributes\n     * @param {string} options.manifestUri\n     *        The uri source of the mpd\n     * @param {number} options.NOW\n     *        Current time per DASH IOP.  Default is current time in ms since epoch\n     * @param {number} options.clientOffset\n     *        Client time difference from NOW (in milliseconds)\n     * @return {RepresentationInformation[]}\n     *         List of objects containing Representation information\n     */\n\n    const inheritAttributes = (mpd, options = {}) => {\n        const {\n            manifestUri = '',\n            NOW = Date.now(),\n            clientOffset = 0\n        } = options;\n        const periodNodes = findChildren(mpd, 'Period');\n        if (!periodNodes.length) {\n            throw new Error(errors.INVALID_NUMBER_OF_PERIOD);\n        }\n        const locations = findChildren(mpd, 'Location');\n        const mpdAttributes = parseAttributes(mpd);\n        const mpdBaseUrls = buildBaseUrls([manifestUri], findChildren(mpd, 'BaseURL')); // See DASH spec section 5.3.1.2, Semantics of MPD element. Default type to 'static'.\n\n        mpdAttributes.type = mpdAttributes.type || 'static';\n        mpdAttributes.sourceDuration = mpdAttributes.mediaPresentationDuration || 0;\n        mpdAttributes.NOW = NOW;\n        mpdAttributes.clientOffset = clientOffset;\n        if (locations.length) {\n            mpdAttributes.locations = locations.map(getContent);\n        }\n        const periods = []; // Since toAdaptationSets acts on individual periods right now, the simplest approach to\n        // adding properties that require looking at prior periods is to parse attributes and add\n        // missing ones before toAdaptationSets is called. If more such properties are added, it\n        // may be better to refactor toAdaptationSets.\n\n        periodNodes.forEach((node, index) => {\n            const attributes = parseAttributes(node); // Use the last modified prior period, as it may contain added information necessary\n            // for this period.\n\n            const priorPeriod = periods[index - 1];\n            attributes.start = getPeriodStart({\n                attributes,\n                priorPeriodAttributes: priorPeriod ? priorPeriod.attributes : null,\n                mpdType: mpdAttributes.type\n            });\n            periods.push({\n                node,\n                attributes\n            });\n        });\n        return {\n            locations: mpdAttributes.locations,\n            representationInfo: flatten(periods.map(toAdaptationSets(mpdAttributes, mpdBaseUrls)))\n        };\n    };\n    const stringToMpdXml = manifestString => {\n        if (manifestString === '') {\n            throw new Error(errors.DASH_EMPTY_MANIFEST);\n        }\n        const parser = new DOMParser();\n        let xml;\n        let mpd;\n        try {\n            xml = parser.parseFromString(manifestString, 'application/xml');\n            mpd = xml && xml.documentElement.tagName === 'MPD' ? xml.documentElement : null;\n        } catch (e) {// ie 11 throwsw on invalid xml\n        }\n        if (!mpd || mpd && mpd.getElementsByTagName('parsererror').length > 0) {\n            throw new Error(errors.DASH_INVALID_XML);\n        }\n        return mpd;\n    };\n\n    /**\n     * Parses the manifest for a UTCTiming node, returning the nodes attributes if found\n     *\n     * @param {string} mpd\n     *        XML string of the MPD manifest\n     * @return {Object|null}\n     *         Attributes of UTCTiming node specified in the manifest. Null if none found\n     */\n\n    const parseUTCTimingScheme = mpd => {\n        const UTCTimingNode = findChildren(mpd, 'UTCTiming')[0];\n        if (!UTCTimingNode) {\n            return null;\n        }\n        const attributes = parseAttributes(UTCTimingNode);\n        switch (attributes.schemeIdUri) {\n            case 'urn:mpeg:dash:utc:http-head:2014':\n            case 'urn:mpeg:dash:utc:http-head:2012':\n                attributes.method = 'HEAD';\n                break;\n            case 'urn:mpeg:dash:utc:http-xsdate:2014':\n            case 'urn:mpeg:dash:utc:http-iso:2014':\n            case 'urn:mpeg:dash:utc:http-xsdate:2012':\n            case 'urn:mpeg:dash:utc:http-iso:2012':\n                attributes.method = 'GET';\n                break;\n            case 'urn:mpeg:dash:utc:direct:2014':\n            case 'urn:mpeg:dash:utc:direct:2012':\n                attributes.method = 'DIRECT';\n                attributes.value = Date.parse(attributes.value);\n                break;\n            case 'urn:mpeg:dash:utc:http-ntp:2014':\n            case 'urn:mpeg:dash:utc:ntp:2014':\n            case 'urn:mpeg:dash:utc:sntp:2014':\n            default:\n                throw new Error(errors.UNSUPPORTED_UTC_TIMING_SCHEME);\n        }\n        return attributes;\n    };\n    /*\n   * Given a DASH manifest string and options, parses the DASH manifest into an object in the\n   * form outputed by m3u8-parser and accepted by videojs/http-streaming.\n   *\n   * For live DASH manifests, if `previousManifest` is provided in options, then the newly\n   * parsed DASH manifest will have its media sequence and discontinuity sequence values\n   * updated to reflect its position relative to the prior manifest.\n   *\n   * @param {string} manifestString - the DASH manifest as a string\n   * @param {options} [options] - any options\n   *\n   * @return {Object} the manifest object\n   */\n\n    const parse = (manifestString, options = {}) => {\n        const parsedManifestInfo = inheritAttributes(stringToMpdXml(manifestString), options);\n        const playlists = toPlaylists(parsedManifestInfo.representationInfo);\n        return toM3u8({\n            dashPlaylists: playlists,\n            locations: parsedManifestInfo.locations,\n            sidxMapping: options.sidxMapping,\n            previousManifest: options.previousManifest\n        });\n    };\n    /**\n     * Parses the manifest for a UTCTiming node, returning the nodes attributes if found\n     *\n     * @param {string} manifestString\n     *        XML string of the MPD manifest\n     * @return {Object|null}\n     *         Attributes of UTCTiming node specified in the manifest. Null if none found\n     */\n\n    const parseUTCTiming = manifestString => parseUTCTimingScheme(stringToMpdXml(manifestString));\n\n    var MAX_UINT32 = Math.pow(2, 32);\n    var getUint64$1 = function (uint8) {\n        var dv = new DataView(uint8.buffer, uint8.byteOffset, uint8.byteLength);\n        var value;\n        if (dv.getBigUint64) {\n            value = dv.getBigUint64(0);\n            if (value < Number.MAX_SAFE_INTEGER) {\n                return Number(value);\n            }\n            return value;\n        }\n        return dv.getUint32(0) * MAX_UINT32 + dv.getUint32(4);\n    };\n    var numbers = {\n        getUint64: getUint64$1,\n        MAX_UINT32: MAX_UINT32\n    };\n\n    var getUint64 = numbers.getUint64;\n    var parseSidx = function (data) {\n        var view = new DataView(data.buffer, data.byteOffset, data.byteLength),\n            result = {\n                version: data[0],\n                flags: new Uint8Array(data.subarray(1, 4)),\n                references: [],\n                referenceId: view.getUint32(4),\n                timescale: view.getUint32(8)\n            },\n            i = 12;\n        if (result.version === 0) {\n            result.earliestPresentationTime = view.getUint32(i);\n            result.firstOffset = view.getUint32(i + 4);\n            i += 8;\n        } else {\n            // read 64 bits\n            result.earliestPresentationTime = getUint64(data.subarray(i));\n            result.firstOffset = getUint64(data.subarray(i + 8));\n            i += 16;\n        }\n        i += 2; // reserved\n\n        var referenceCount = view.getUint16(i);\n        i += 2; // start of references\n\n        for (; referenceCount > 0; i += 12, referenceCount--) {\n            result.references.push({\n                referenceType: (data[i] & 0x80) >>> 7,\n                referencedSize: view.getUint32(i) & 0x7FFFFFFF,\n                subsegmentDuration: view.getUint32(i + 4),\n                startsWithSap: !!(data[i + 8] & 0x80),\n                sapType: (data[i + 8] & 0x70) >>> 4,\n                sapDeltaTime: view.getUint32(i + 8) & 0x0FFFFFFF\n            });\n        }\n        return result;\n    };\n    var parseSidx_1 = parseSidx;\n\n    var ID3 = toUint8([0x49, 0x44, 0x33]);\n    var getId3Size = function getId3Size(bytes, offset) {\n        if (offset === void 0) {\n            offset = 0;\n        }\n        bytes = toUint8(bytes);\n        var flags = bytes[offset + 5];\n        var returnSize = bytes[offset + 6] << 21 | bytes[offset + 7] << 14 | bytes[offset + 8] << 7 | bytes[offset + 9];\n        var footerPresent = (flags & 16) >> 4;\n        if (footerPresent) {\n            return returnSize + 20;\n        }\n        return returnSize + 10;\n    };\n    var getId3Offset = function getId3Offset(bytes, offset) {\n        if (offset === void 0) {\n            offset = 0;\n        }\n        bytes = toUint8(bytes);\n        if (bytes.length - offset < 10 || !bytesMatch(bytes, ID3, {\n            offset: offset\n        })) {\n            return offset;\n        }\n        offset += getId3Size(bytes, offset); // recursive check for id3 tags as some files\n        // have multiple ID3 tag sections even though\n        // they should not.\n\n        return getId3Offset(bytes, offset);\n    };\n\n    var normalizePath$1 = function normalizePath(path) {\n        if (typeof path === 'string') {\n            return stringToBytes(path);\n        }\n        if (typeof path === 'number') {\n            return path;\n        }\n        return path;\n    };\n    var normalizePaths$1 = function normalizePaths(paths) {\n        if (!Array.isArray(paths)) {\n            return [normalizePath$1(paths)];\n        }\n        return paths.map(function (p) {\n            return normalizePath$1(p);\n        });\n    };\n    /**\n     * find any number of boxes by name given a path to it in an iso bmff\n     * such as mp4.\n     *\n     * @param {TypedArray} bytes\n     *        bytes for the iso bmff to search for boxes in\n     *\n     * @param {Uint8Array[]|string[]|string|Uint8Array} name\n     *        An array of paths or a single path representing the name\n     *        of boxes to search through in bytes. Paths may be\n     *        uint8 (character codes) or strings.\n     *\n     * @param {boolean} [complete=false]\n     *        Should we search only for complete boxes on the final path.\n     *        This is very useful when you do not want to get back partial boxes\n     *        in the case of streaming files.\n     *\n     * @return {Uint8Array[]}\n     *         An array of the end paths that we found.\n     */\n\n    var findBox = function findBox(bytes, paths, complete) {\n        if (complete === void 0) {\n            complete = false;\n        }\n        paths = normalizePaths$1(paths);\n        bytes = toUint8(bytes);\n        var results = [];\n        if (!paths.length) {\n            // short-circuit the search for empty paths\n            return results;\n        }\n        var i = 0;\n        while (i < bytes.length) {\n            var size = (bytes[i] << 24 | bytes[i + 1] << 16 | bytes[i + 2] << 8 | bytes[i + 3]) >>> 0;\n            var type = bytes.subarray(i + 4, i + 8); // invalid box format.\n\n            if (size === 0) {\n                break;\n            }\n            var end = i + size;\n            if (end > bytes.length) {\n                // this box is bigger than the number of bytes we have\n                // and complete is set, we cannot find any more boxes.\n                if (complete) {\n                    break;\n                }\n                end = bytes.length;\n            }\n            var data = bytes.subarray(i + 8, end);\n            if (bytesMatch(type, paths[0])) {\n                if (paths.length === 1) {\n                    // this is the end of the path and we've found the box we were\n                    // looking for\n                    results.push(data);\n                } else {\n                    // recursively search for the next box along the path\n                    results.push.apply(results, findBox(data, paths.slice(1), complete));\n                }\n            }\n            i = end;\n        } // we've finished searching all of bytes\n\n        return results;\n    };\n\n    // https://matroska-org.github.io/libebml/specs.html\n    // https://www.matroska.org/technical/elements.html\n    // https://www.webmproject.org/docs/container/\n\n    var EBML_TAGS = {\n        EBML: toUint8([0x1A, 0x45, 0xDF, 0xA3]),\n        DocType: toUint8([0x42, 0x82]),\n        Segment: toUint8([0x18, 0x53, 0x80, 0x67]),\n        SegmentInfo: toUint8([0x15, 0x49, 0xA9, 0x66]),\n        Tracks: toUint8([0x16, 0x54, 0xAE, 0x6B]),\n        Track: toUint8([0xAE]),\n        TrackNumber: toUint8([0xd7]),\n        DefaultDuration: toUint8([0x23, 0xe3, 0x83]),\n        TrackEntry: toUint8([0xAE]),\n        TrackType: toUint8([0x83]),\n        FlagDefault: toUint8([0x88]),\n        CodecID: toUint8([0x86]),\n        CodecPrivate: toUint8([0x63, 0xA2]),\n        VideoTrack: toUint8([0xe0]),\n        AudioTrack: toUint8([0xe1]),\n        // Not used yet, but will be used for live webm/mkv\n        // see https://www.matroska.org/technical/basics.html#block-structure\n        // see https://www.matroska.org/technical/basics.html#simpleblock-structure\n        Cluster: toUint8([0x1F, 0x43, 0xB6, 0x75]),\n        Timestamp: toUint8([0xE7]),\n        TimestampScale: toUint8([0x2A, 0xD7, 0xB1]),\n        BlockGroup: toUint8([0xA0]),\n        BlockDuration: toUint8([0x9B]),\n        Block: toUint8([0xA1]),\n        SimpleBlock: toUint8([0xA3])\n    };\n    /**\n     * This is a simple table to determine the length\n     * of things in ebml. The length is one based (starts at 1,\n     * rather than zero) and for every zero bit before a one bit\n     * we add one to length. We also need this table because in some\n     * case we have to xor all the length bits from another value.\n     */\n\n    var LENGTH_TABLE = [128, 64, 32, 16, 8, 4, 2, 1];\n    var getLength = function getLength(byte) {\n        var len = 1;\n        for (var i = 0; i < LENGTH_TABLE.length; i++) {\n            if (byte & LENGTH_TABLE[i]) {\n                break;\n            }\n            len++;\n        }\n        return len;\n    }; // length in ebml is stored in the first 4 to 8 bits\n    // of the first byte. 4 for the id length and 8 for the\n    // data size length. Length is measured by converting the number to binary\n    // then 1 + the number of zeros before a 1 is encountered starting\n    // from the left.\n\n    var getvint = function getvint(bytes, offset, removeLength, signed) {\n        if (removeLength === void 0) {\n            removeLength = true;\n        }\n        if (signed === void 0) {\n            signed = false;\n        }\n        var length = getLength(bytes[offset]);\n        var valueBytes = bytes.subarray(offset, offset + length); // NOTE that we do **not** subarray here because we need to copy these bytes\n        // as they will be modified below to remove the dataSizeLen bits and we do not\n        // want to modify the original data. normally we could just call slice on\n        // uint8array but ie 11 does not support that...\n\n        if (removeLength) {\n            valueBytes = Array.prototype.slice.call(bytes, offset, offset + length);\n            valueBytes[0] ^= LENGTH_TABLE[length - 1];\n        }\n        return {\n            length: length,\n            value: bytesToNumber(valueBytes, {\n                signed: signed\n            }),\n            bytes: valueBytes\n        };\n    };\n    var normalizePath = function normalizePath(path) {\n        if (typeof path === 'string') {\n            return path.match(/.{1,2}/g).map(function (p) {\n                return normalizePath(p);\n            });\n        }\n        if (typeof path === 'number') {\n            return numberToBytes(path);\n        }\n        return path;\n    };\n    var normalizePaths = function normalizePaths(paths) {\n        if (!Array.isArray(paths)) {\n            return [normalizePath(paths)];\n        }\n        return paths.map(function (p) {\n            return normalizePath(p);\n        });\n    };\n    var getInfinityDataSize = function getInfinityDataSize(id, bytes, offset) {\n        if (offset >= bytes.length) {\n            return bytes.length;\n        }\n        var innerid = getvint(bytes, offset, false);\n        if (bytesMatch(id.bytes, innerid.bytes)) {\n            return offset;\n        }\n        var dataHeader = getvint(bytes, offset + innerid.length);\n        return getInfinityDataSize(id, bytes, offset + dataHeader.length + dataHeader.value + innerid.length);\n    };\n    /**\n     * Notes on the EBLM format.\n     *\n     * EBLM uses \"vints\" tags. Every vint tag contains\n     * two parts\n     *\n     * 1. The length from the first byte. You get this by\n     *    converting the byte to binary and counting the zeros\n     *    before a 1. Then you add 1 to that. Examples\n     *    00011111 = length 4 because there are 3 zeros before a 1.\n     *    00100000 = length 3 because there are 2 zeros before a 1.\n     *    00000011 = length 7 because there are 6 zeros before a 1.\n     *\n     * 2. The bits used for length are removed from the first byte\n     *    Then all the bytes are merged into a value. NOTE: this\n     *    is not the case for id ebml tags as there id includes\n     *    length bits.\n     *\n     */\n\n    var findEbml = function findEbml(bytes, paths) {\n        paths = normalizePaths(paths);\n        bytes = toUint8(bytes);\n        var results = [];\n        if (!paths.length) {\n            return results;\n        }\n        var i = 0;\n        while (i < bytes.length) {\n            var id = getvint(bytes, i, false);\n            var dataHeader = getvint(bytes, i + id.length);\n            var dataStart = i + id.length + dataHeader.length; // dataSize is unknown or this is a live stream\n\n            if (dataHeader.value === 0x7f) {\n                dataHeader.value = getInfinityDataSize(id, bytes, dataStart);\n                if (dataHeader.value !== bytes.length) {\n                    dataHeader.value -= dataStart;\n                }\n            }\n            var dataEnd = dataStart + dataHeader.value > bytes.length ? bytes.length : dataStart + dataHeader.value;\n            var data = bytes.subarray(dataStart, dataEnd);\n            if (bytesMatch(paths[0], id.bytes)) {\n                if (paths.length === 1) {\n                    // this is the end of the paths and we've found the tag we were\n                    // looking for\n                    results.push(data);\n                } else {\n                    // recursively search for the next tag inside of the data\n                    // of this one\n                    results = results.concat(findEbml(data, paths.slice(1)));\n                }\n            }\n            var totalLength = id.length + dataHeader.length + data.length; // move past this tag entirely, we are not looking for it\n\n            i += totalLength;\n        }\n        return results;\n    }; // see https://www.matroska.org/technical/basics.html#block-structure\n\n    var NAL_TYPE_ONE = toUint8([0x00, 0x00, 0x00, 0x01]);\n    var NAL_TYPE_TWO = toUint8([0x00, 0x00, 0x01]);\n    var EMULATION_PREVENTION = toUint8([0x00, 0x00, 0x03]);\n    /**\n     * Expunge any \"Emulation Prevention\" bytes from a \"Raw Byte\n     * Sequence Payload\"\n     *\n     * @param data {Uint8Array} the bytes of a RBSP from a NAL\n     * unit\n     * @return {Uint8Array} the RBSP without any Emulation\n     * Prevention Bytes\n     */\n\n    var discardEmulationPreventionBytes = function discardEmulationPreventionBytes(bytes) {\n        var positions = [];\n        var i = 1; // Find all `Emulation Prevention Bytes`\n\n        while (i < bytes.length - 2) {\n            if (bytesMatch(bytes.subarray(i, i + 3), EMULATION_PREVENTION)) {\n                positions.push(i + 2);\n                i++;\n            }\n            i++;\n        } // If no Emulation Prevention Bytes were found just return the original\n        // array\n\n        if (positions.length === 0) {\n            return bytes;\n        } // Create a new array to hold the NAL unit data\n\n        var newLength = bytes.length - positions.length;\n        var newData = new Uint8Array(newLength);\n        var sourceIndex = 0;\n        for (i = 0; i < newLength; sourceIndex++, i++) {\n            if (sourceIndex === positions[0]) {\n                // Skip this byte\n                sourceIndex++; // Remove this position index\n\n                positions.shift();\n            }\n            newData[i] = bytes[sourceIndex];\n        }\n        return newData;\n    };\n    var findNal = function findNal(bytes, dataType, types, nalLimit) {\n        if (nalLimit === void 0) {\n            nalLimit = Infinity;\n        }\n        bytes = toUint8(bytes);\n        types = [].concat(types);\n        var i = 0;\n        var nalStart;\n        var nalsFound = 0; // keep searching until:\n        // we reach the end of bytes\n        // we reach the maximum number of nals they want to seach\n        // NOTE: that we disregard nalLimit when we have found the start\n        // of the nal we want so that we can find the end of the nal we want.\n\n        while (i < bytes.length && (nalsFound < nalLimit || nalStart)) {\n            var nalOffset = void 0;\n            if (bytesMatch(bytes.subarray(i), NAL_TYPE_ONE)) {\n                nalOffset = 4;\n            } else if (bytesMatch(bytes.subarray(i), NAL_TYPE_TWO)) {\n                nalOffset = 3;\n            } // we are unsynced,\n            // find the next nal unit\n\n            if (!nalOffset) {\n                i++;\n                continue;\n            }\n            nalsFound++;\n            if (nalStart) {\n                return discardEmulationPreventionBytes(bytes.subarray(nalStart, i));\n            }\n            var nalType = void 0;\n            if (dataType === 'h264') {\n                nalType = bytes[i + nalOffset] & 0x1f;\n            } else if (dataType === 'h265') {\n                nalType = bytes[i + nalOffset] >> 1 & 0x3f;\n            }\n            if (types.indexOf(nalType) !== -1) {\n                nalStart = i + nalOffset;\n            } // nal header is 1 length for h264, and 2 for h265\n\n            i += nalOffset + (dataType === 'h264' ? 1 : 2);\n        }\n        return bytes.subarray(0, 0);\n    };\n    var findH264Nal = function findH264Nal(bytes, type, nalLimit) {\n        return findNal(bytes, 'h264', type, nalLimit);\n    };\n    var findH265Nal = function findH265Nal(bytes, type, nalLimit) {\n        return findNal(bytes, 'h265', type, nalLimit);\n    };\n\n    var CONSTANTS = {\n        // \"webm\" string literal in hex\n        'webm': toUint8([0x77, 0x65, 0x62, 0x6d]),\n        // \"matroska\" string literal in hex\n        'matroska': toUint8([0x6d, 0x61, 0x74, 0x72, 0x6f, 0x73, 0x6b, 0x61]),\n        // \"fLaC\" string literal in hex\n        'flac': toUint8([0x66, 0x4c, 0x61, 0x43]),\n        // \"OggS\" string literal in hex\n        'ogg': toUint8([0x4f, 0x67, 0x67, 0x53]),\n        // ac-3 sync byte, also works for ec-3 as that is simply a codec\n        // of ac-3\n        'ac3': toUint8([0x0b, 0x77]),\n        // \"RIFF\" string literal in hex used for wav and avi\n        'riff': toUint8([0x52, 0x49, 0x46, 0x46]),\n        // \"AVI\" string literal in hex\n        'avi': toUint8([0x41, 0x56, 0x49]),\n        // \"WAVE\" string literal in hex\n        'wav': toUint8([0x57, 0x41, 0x56, 0x45]),\n        // \"ftyp3g\" string literal in hex\n        '3gp': toUint8([0x66, 0x74, 0x79, 0x70, 0x33, 0x67]),\n        // \"ftyp\" string literal in hex\n        'mp4': toUint8([0x66, 0x74, 0x79, 0x70]),\n        // \"styp\" string literal in hex\n        'fmp4': toUint8([0x73, 0x74, 0x79, 0x70]),\n        // \"ftypqt\" string literal in hex\n        'mov': toUint8([0x66, 0x74, 0x79, 0x70, 0x71, 0x74]),\n        // moov string literal in hex\n        'moov': toUint8([0x6D, 0x6F, 0x6F, 0x76]),\n        // moof string literal in hex\n        'moof': toUint8([0x6D, 0x6F, 0x6F, 0x66])\n    };\n    var _isLikely = {\n        aac: function aac(bytes) {\n            var offset = getId3Offset(bytes);\n            return bytesMatch(bytes, [0xFF, 0x10], {\n                offset: offset,\n                mask: [0xFF, 0x16]\n            });\n        },\n        mp3: function mp3(bytes) {\n            var offset = getId3Offset(bytes);\n            return bytesMatch(bytes, [0xFF, 0x02], {\n                offset: offset,\n                mask: [0xFF, 0x06]\n            });\n        },\n        webm: function webm(bytes) {\n            var docType = findEbml(bytes, [EBML_TAGS.EBML, EBML_TAGS.DocType])[0]; // check if DocType EBML tag is webm\n\n            return bytesMatch(docType, CONSTANTS.webm);\n        },\n        mkv: function mkv(bytes) {\n            var docType = findEbml(bytes, [EBML_TAGS.EBML, EBML_TAGS.DocType])[0]; // check if DocType EBML tag is matroska\n\n            return bytesMatch(docType, CONSTANTS.matroska);\n        },\n        mp4: function mp4(bytes) {\n            // if this file is another base media file format, it is not mp4\n            if (_isLikely['3gp'](bytes) || _isLikely.mov(bytes)) {\n                return false;\n            } // if this file starts with a ftyp or styp box its mp4\n\n            if (bytesMatch(bytes, CONSTANTS.mp4, {\n                offset: 4\n            }) || bytesMatch(bytes, CONSTANTS.fmp4, {\n                offset: 4\n            })) {\n                return true;\n            } // if this file starts with a moof/moov box its mp4\n\n            if (bytesMatch(bytes, CONSTANTS.moof, {\n                offset: 4\n            }) || bytesMatch(bytes, CONSTANTS.moov, {\n                offset: 4\n            })) {\n                return true;\n            }\n        },\n        mov: function mov(bytes) {\n            return bytesMatch(bytes, CONSTANTS.mov, {\n                offset: 4\n            });\n        },\n        '3gp': function gp(bytes) {\n            return bytesMatch(bytes, CONSTANTS['3gp'], {\n                offset: 4\n            });\n        },\n        ac3: function ac3(bytes) {\n            var offset = getId3Offset(bytes);\n            return bytesMatch(bytes, CONSTANTS.ac3, {\n                offset: offset\n            });\n        },\n        ts: function ts(bytes) {\n            if (bytes.length < 189 && bytes.length >= 1) {\n                return bytes[0] === 0x47;\n            }\n            var i = 0; // check the first 376 bytes for two matching sync bytes\n\n            while (i + 188 < bytes.length && i < 188) {\n                if (bytes[i] === 0x47 && bytes[i + 188] === 0x47) {\n                    return true;\n                }\n                i += 1;\n            }\n            return false;\n        },\n        flac: function flac(bytes) {\n            var offset = getId3Offset(bytes);\n            return bytesMatch(bytes, CONSTANTS.flac, {\n                offset: offset\n            });\n        },\n        ogg: function ogg(bytes) {\n            return bytesMatch(bytes, CONSTANTS.ogg);\n        },\n        avi: function avi(bytes) {\n            return bytesMatch(bytes, CONSTANTS.riff) && bytesMatch(bytes, CONSTANTS.avi, {\n                offset: 8\n            });\n        },\n        wav: function wav(bytes) {\n            return bytesMatch(bytes, CONSTANTS.riff) && bytesMatch(bytes, CONSTANTS.wav, {\n                offset: 8\n            });\n        },\n        'h264': function h264(bytes) {\n            // find seq_parameter_set_rbsp\n            return findH264Nal(bytes, 7, 3).length;\n        },\n        'h265': function h265(bytes) {\n            // find video_parameter_set_rbsp or seq_parameter_set_rbsp\n            return findH265Nal(bytes, [32, 33], 3).length;\n        }\n    }; // get all the isLikely functions\n    // but make sure 'ts' is above h264 and h265\n    // but below everything else as it is the least specific\n\n    var isLikelyTypes = Object.keys(_isLikely) // remove ts, h264, h265\n        .filter(function (t) {\n            return t !== 'ts' && t !== 'h264' && t !== 'h265';\n        }) // add it back to the bottom\n        .concat(['ts', 'h264', 'h265']); // make sure we are dealing with uint8 data.\n\n    isLikelyTypes.forEach(function (type) {\n        var isLikelyFn = _isLikely[type];\n        _isLikely[type] = function (bytes) {\n            return isLikelyFn(toUint8(bytes));\n        };\n    }); // export after wrapping\n\n    var isLikely = _isLikely; // A useful list of file signatures can be found here\n    // https://en.wikipedia.org/wiki/List_of_file_signatures\n\n    var detectContainerForBytes = function detectContainerForBytes(bytes) {\n        bytes = toUint8(bytes);\n        for (var i = 0; i < isLikelyTypes.length; i++) {\n            var type = isLikelyTypes[i];\n            if (isLikely[type](bytes)) {\n                return type;\n            }\n        }\n        return '';\n    }; // fmp4 is not a container\n\n    var isLikelyFmp4MediaSegment = function isLikelyFmp4MediaSegment(bytes) {\n        return findBox(bytes, ['moof']).length > 0;\n    };\n\n    /**\n     * mux.js\n     *\n     * Copyright (c) Brightcove\n     * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE\n     */\n    var ONE_SECOND_IN_TS = 90000,\n        // 90kHz clock\n        secondsToVideoTs,\n        secondsToAudioTs,\n        videoTsToSeconds,\n        audioTsToSeconds,\n        audioTsToVideoTs,\n        videoTsToAudioTs,\n        metadataTsToSeconds;\n    secondsToVideoTs = function (seconds) {\n        return seconds * ONE_SECOND_IN_TS;\n    };\n    secondsToAudioTs = function (seconds, sampleRate) {\n        return seconds * sampleRate;\n    };\n    videoTsToSeconds = function (timestamp) {\n        return timestamp / ONE_SECOND_IN_TS;\n    };\n    audioTsToSeconds = function (timestamp, sampleRate) {\n        return timestamp / sampleRate;\n    };\n    audioTsToVideoTs = function (timestamp, sampleRate) {\n        return secondsToVideoTs(audioTsToSeconds(timestamp, sampleRate));\n    };\n    videoTsToAudioTs = function (timestamp, sampleRate) {\n        return secondsToAudioTs(videoTsToSeconds(timestamp), sampleRate);\n    };\n\n    /**\n     * Adjust ID3 tag or caption timing information by the timeline pts values\n     * (if keepOriginalTimestamps is false) and convert to seconds\n     */\n    metadataTsToSeconds = function (timestamp, timelineStartPts, keepOriginalTimestamps) {\n        return videoTsToSeconds(keepOriginalTimestamps ? timestamp : timestamp - timelineStartPts);\n    };\n    var clock = {\n        ONE_SECOND_IN_TS: ONE_SECOND_IN_TS,\n        secondsToVideoTs: secondsToVideoTs,\n        secondsToAudioTs: secondsToAudioTs,\n        videoTsToSeconds: videoTsToSeconds,\n        audioTsToSeconds: audioTsToSeconds,\n        audioTsToVideoTs: audioTsToVideoTs,\n        videoTsToAudioTs: videoTsToAudioTs,\n        metadataTsToSeconds: metadataTsToSeconds\n    };\n    var clock_1 = clock.ONE_SECOND_IN_TS;\n\n    /*! @name @videojs/http-streaming @version 3.0.2 @license Apache-2.0 */\n\n    /**\n     * @file resolve-url.js - Handling how URLs are resolved and manipulated\n     */\n    const resolveUrl = resolveUrl$2;\n    /**\n     * If the xhr request was redirected, return the responseURL, otherwise,\n     * return the original url.\n     *\n     * @api private\n     *\n     * @param  {string} url - an url being requested\n     * @param  {XMLHttpRequest} req - xhr request result\n     *\n     * @return {string}\n     */\n\n    const resolveManifestRedirect = (url, req) => {\n        // To understand how the responseURL below is set and generated:\n        // - https://fetch.spec.whatwg.org/#concept-response-url\n        // - https://fetch.spec.whatwg.org/#atomic-http-redirect-handling\n        if (req && req.responseURL && url !== req.responseURL) {\n            return req.responseURL;\n        }\n        return url;\n    };\n    const logger = source => {\n        if (videojs.log.debug) {\n            return videojs.log.debug.bind(videojs, 'VHS:', `${source} >`);\n        }\n        return function () {};\n    };\n\n    /**\n     * Provides a compatibility layer between Video.js 7 and 8 API changes for VHS.\n     */\n    /**\n     * Delegates to videojs.obj.merge (Video.js 8) or\n     * videojs.mergeOptions (Video.js 7).\n     */\n\n    function merge(...args) {\n        const context = videojs.obj || videojs;\n        const fn = context.merge || context.mergeOptions;\n        return fn.apply(context, args);\n    }\n    /**\n     * Delegates to videojs.time.createTimeRanges (Video.js 8) or\n     * videojs.createTimeRanges (Video.js 7).\n     */\n\n    function createTimeRanges(...args) {\n        const context = videojs.time || videojs;\n        const fn = context.createTimeRanges || context.createTimeRanges;\n        return fn.apply(context, args);\n    }\n\n    /**\n     * ranges\n     *\n     * Utilities for working with TimeRanges.\n     *\n     */\n\n    const TIME_FUDGE_FACTOR = 1 / 30; // Comparisons between time values such as current time and the end of the buffered range\n    // can be misleading because of precision differences or when the current media has poorly\n    // aligned audio and video, which can cause values to be slightly off from what you would\n    // expect. This value is what we consider to be safe to use in such comparisons to account\n    // for these scenarios.\n\n    const SAFE_TIME_DELTA = TIME_FUDGE_FACTOR * 3;\n    const filterRanges = function (timeRanges, predicate) {\n        const results = [];\n        let i;\n        if (timeRanges && timeRanges.length) {\n            // Search for ranges that match the predicate\n            for (i = 0; i < timeRanges.length; i++) {\n                if (predicate(timeRanges.start(i), timeRanges.end(i))) {\n                    results.push([timeRanges.start(i), timeRanges.end(i)]);\n                }\n            }\n        }\n        return createTimeRanges(results);\n    };\n    /**\n     * Attempts to find the buffered TimeRange that contains the specified\n     * time.\n     *\n     * @param {TimeRanges} buffered - the TimeRanges object to query\n     * @param {number} time  - the time to filter on.\n     * @return {TimeRanges} a new TimeRanges object\n     */\n\n    const findRange = function (buffered, time) {\n        return filterRanges(buffered, function (start, end) {\n            return start - SAFE_TIME_DELTA <= time && end + SAFE_TIME_DELTA >= time;\n        });\n    };\n    /**\n     * Returns the TimeRanges that begin later than the specified time.\n     *\n     * @param {TimeRanges} timeRanges - the TimeRanges object to query\n     * @param {number} time - the time to filter on.\n     * @return {TimeRanges} a new TimeRanges object.\n     */\n\n    const findNextRange = function (timeRanges, time) {\n        return filterRanges(timeRanges, function (start) {\n            return start - TIME_FUDGE_FACTOR >= time;\n        });\n    };\n    /**\n     * Returns gaps within a list of TimeRanges\n     *\n     * @param {TimeRanges} buffered - the TimeRanges object\n     * @return {TimeRanges} a TimeRanges object of gaps\n     */\n\n    const findGaps = function (buffered) {\n        if (buffered.length < 2) {\n            return createTimeRanges();\n        }\n        const ranges = [];\n        for (let i = 1; i < buffered.length; i++) {\n            const start = buffered.end(i - 1);\n            const end = buffered.start(i);\n            ranges.push([start, end]);\n        }\n        return createTimeRanges(ranges);\n    };\n    /**\n     * Calculate the intersection of two TimeRanges\n     *\n     * @param {TimeRanges} bufferA\n     * @param {TimeRanges} bufferB\n     * @return {TimeRanges} The interesection of `bufferA` with `bufferB`\n     */\n\n    const bufferIntersection = function (bufferA, bufferB) {\n        let start = null;\n        let end = null;\n        let arity = 0;\n        const extents = [];\n        const ranges = [];\n        if (!bufferA || !bufferA.length || !bufferB || !bufferB.length) {\n            return createTimeRanges();\n        } // Handle the case where we have both buffers and create an\n        // intersection of the two\n\n        let count = bufferA.length; // A) Gather up all start and end times\n\n        while (count--) {\n            extents.push({\n                time: bufferA.start(count),\n                type: 'start'\n            });\n            extents.push({\n                time: bufferA.end(count),\n                type: 'end'\n            });\n        }\n        count = bufferB.length;\n        while (count--) {\n            extents.push({\n                time: bufferB.start(count),\n                type: 'start'\n            });\n            extents.push({\n                time: bufferB.end(count),\n                type: 'end'\n            });\n        } // B) Sort them by time\n\n        extents.sort(function (a, b) {\n            return a.time - b.time;\n        }); // C) Go along one by one incrementing arity for start and decrementing\n        //    arity for ends\n\n        for (count = 0; count < extents.length; count++) {\n            if (extents[count].type === 'start') {\n                arity++; // D) If arity is ever incremented to 2 we are entering an\n                //    overlapping range\n\n                if (arity === 2) {\n                    start = extents[count].time;\n                }\n            } else if (extents[count].type === 'end') {\n                arity--; // E) If arity is ever decremented to 1 we leaving an\n                //    overlapping range\n\n                if (arity === 1) {\n                    end = extents[count].time;\n                }\n            } // F) Record overlapping ranges\n\n            if (start !== null && end !== null) {\n                ranges.push([start, end]);\n                start = null;\n                end = null;\n            }\n        }\n        return createTimeRanges(ranges);\n    };\n    /**\n     * Gets a human readable string for a TimeRange\n     *\n     * @param {TimeRange} range\n     * @return {string} a human readable string\n     */\n\n    const printableRange = range => {\n        const strArr = [];\n        if (!range || !range.length) {\n            return '';\n        }\n        for (let i = 0; i < range.length; i++) {\n            strArr.push(range.start(i) + ' => ' + range.end(i));\n        }\n        return strArr.join(', ');\n    };\n    /**\n     * Calculates the amount of time left in seconds until the player hits the end of the\n     * buffer and causes a rebuffer\n     *\n     * @param {TimeRange} buffered\n     *        The state of the buffer\n     * @param {Numnber} currentTime\n     *        The current time of the player\n     * @param {number} playbackRate\n     *        The current playback rate of the player. Defaults to 1.\n     * @return {number}\n     *         Time until the player has to start rebuffering in seconds.\n     * @function timeUntilRebuffer\n     */\n\n    const timeUntilRebuffer = function (buffered, currentTime, playbackRate = 1) {\n        const bufferedEnd = buffered.length ? buffered.end(buffered.length - 1) : 0;\n        return (bufferedEnd - currentTime) / playbackRate;\n    };\n    /**\n     * Converts a TimeRanges object into an array representation\n     *\n     * @param {TimeRanges} timeRanges\n     * @return {Array}\n     */\n\n    const timeRangesToArray = timeRanges => {\n        const timeRangesList = [];\n        for (let i = 0; i < timeRanges.length; i++) {\n            timeRangesList.push({\n                start: timeRanges.start(i),\n                end: timeRanges.end(i)\n            });\n        }\n        return timeRangesList;\n    };\n    /**\n     * Determines if two time range objects are different.\n     *\n     * @param {TimeRange} a\n     *        the first time range object to check\n     *\n     * @param {TimeRange} b\n     *        the second time range object to check\n     *\n     * @return {Boolean}\n     *         Whether the time range objects differ\n     */\n\n    const isRangeDifferent = function (a, b) {\n        // same object\n        if (a === b) {\n            return false;\n        } // one or the other is undefined\n\n        if (!a && b || !b && a) {\n            return true;\n        } // length is different\n\n        if (a.length !== b.length) {\n            return true;\n        } // see if any start/end pair is different\n\n        for (let i = 0; i < a.length; i++) {\n            if (a.start(i) !== b.start(i) || a.end(i) !== b.end(i)) {\n                return true;\n            }\n        } // if the length and every pair is the same\n        // this is the same time range\n\n        return false;\n    };\n    const lastBufferedEnd = function (a) {\n        if (!a || !a.length || !a.end) {\n            return;\n        }\n        return a.end(a.length - 1);\n    };\n    /**\n     * A utility function to add up the amount of time in a timeRange\n     * after a specified startTime.\n     * ie:[[0, 10], [20, 40], [50, 60]] with a startTime 0\n     *     would return 40 as there are 40s seconds after 0 in the timeRange\n     *\n     * @param {TimeRange} range\n     *        The range to check against\n     * @param {number} startTime\n     *        The time in the time range that you should start counting from\n     *\n     * @return {number}\n     *          The number of seconds in the buffer passed the specified time.\n     */\n\n    const timeAheadOf = function (range, startTime) {\n        let time = 0;\n        if (!range || !range.length) {\n            return time;\n        }\n        for (let i = 0; i < range.length; i++) {\n            const start = range.start(i);\n            const end = range.end(i); // startTime is after this range entirely\n\n            if (startTime > end) {\n                continue;\n            } // startTime is within this range\n\n            if (startTime > start && startTime <= end) {\n                time += end - startTime;\n                continue;\n            } // startTime is before this range.\n\n            time += end - start;\n        }\n        return time;\n    };\n\n    /**\n     * @file playlist.js\n     *\n     * Playlist related utilities.\n     */\n    /**\n     * Get the duration of a segment, with special cases for\n     * llhls segments that do not have a duration yet.\n     *\n     * @param {Object} playlist\n     *        the playlist that the segment belongs to.\n     * @param {Object} segment\n     *        the segment to get a duration for.\n     *\n     * @return {number}\n     *          the segment duration\n     */\n\n    const segmentDurationWithParts = (playlist, segment) => {\n        // if this isn't a preload segment\n        // then we will have a segment duration that is accurate.\n        if (!segment.preload) {\n            return segment.duration;\n        } // otherwise we have to add up parts and preload hints\n        // to get an up to date duration.\n\n        let result = 0;\n        (segment.parts || []).forEach(function (p) {\n            result += p.duration;\n        }); // for preload hints we have to use partTargetDuration\n        // as they won't even have a duration yet.\n\n        (segment.preloadHints || []).forEach(function (p) {\n            if (p.type === 'PART') {\n                result += playlist.partTargetDuration;\n            }\n        });\n        return result;\n    };\n    /**\n     * A function to get a combined list of parts and segments with durations\n     * and indexes.\n     *\n     * @param {Playlist} playlist the playlist to get the list for.\n     *\n     * @return {Array} The part/segment list.\n     */\n\n    const getPartsAndSegments = playlist => (playlist.segments || []).reduce((acc, segment, si) => {\n        if (segment.parts) {\n            segment.parts.forEach(function (part, pi) {\n                acc.push({\n                    duration: part.duration,\n                    segmentIndex: si,\n                    partIndex: pi,\n                    part,\n                    segment\n                });\n            });\n        } else {\n            acc.push({\n                duration: segment.duration,\n                segmentIndex: si,\n                partIndex: null,\n                segment,\n                part: null\n            });\n        }\n        return acc;\n    }, []);\n    const getLastParts = media => {\n        const lastSegment = media.segments && media.segments.length && media.segments[media.segments.length - 1];\n        return lastSegment && lastSegment.parts || [];\n    };\n    const getKnownPartCount = ({\n                                   preloadSegment\n                               }) => {\n        if (!preloadSegment) {\n            return;\n        }\n        const {\n            parts,\n            preloadHints\n        } = preloadSegment;\n        let partCount = (preloadHints || []).reduce((count, hint) => count + (hint.type === 'PART' ? 1 : 0), 0);\n        partCount += parts && parts.length ? parts.length : 0;\n        return partCount;\n    };\n    /**\n     * Get the number of seconds to delay from the end of a\n     * live playlist.\n     *\n     * @param {Playlist} main the main playlist\n     * @param {Playlist} media the media playlist\n     * @return {number} the hold back in seconds.\n     */\n\n    const liveEdgeDelay = (main, media) => {\n        if (media.endList) {\n            return 0;\n        } // dash suggestedPresentationDelay trumps everything\n\n        if (main && main.suggestedPresentationDelay) {\n            return main.suggestedPresentationDelay;\n        }\n        const hasParts = getLastParts(media).length > 0; // look for \"part\" delays from ll-hls first\n\n        if (hasParts && media.serverControl && media.serverControl.partHoldBack) {\n            return media.serverControl.partHoldBack;\n        } else if (hasParts && media.partTargetDuration) {\n            return media.partTargetDuration * 3; // finally look for full segment delays\n        } else if (media.serverControl && media.serverControl.holdBack) {\n            return media.serverControl.holdBack;\n        } else if (media.targetDuration) {\n            return media.targetDuration * 3;\n        }\n        return 0;\n    };\n    /**\n     * walk backward until we find a duration we can use\n     * or return a failure\n     *\n     * @param {Playlist} playlist the playlist to walk through\n     * @param {Number} endSequence the mediaSequence to stop walking on\n     */\n\n    const backwardDuration = function (playlist, endSequence) {\n        let result = 0;\n        let i = endSequence - playlist.mediaSequence; // if a start time is available for segment immediately following\n        // the interval, use it\n\n        let segment = playlist.segments[i]; // Walk backward until we find the latest segment with timeline\n        // information that is earlier than endSequence\n\n        if (segment) {\n            if (typeof segment.start !== 'undefined') {\n                return {\n                    result: segment.start,\n                    precise: true\n                };\n            }\n            if (typeof segment.end !== 'undefined') {\n                return {\n                    result: segment.end - segment.duration,\n                    precise: true\n                };\n            }\n        }\n        while (i--) {\n            segment = playlist.segments[i];\n            if (typeof segment.end !== 'undefined') {\n                return {\n                    result: result + segment.end,\n                    precise: true\n                };\n            }\n            result += segmentDurationWithParts(playlist, segment);\n            if (typeof segment.start !== 'undefined') {\n                return {\n                    result: result + segment.start,\n                    precise: true\n                };\n            }\n        }\n        return {\n            result,\n            precise: false\n        };\n    };\n    /**\n     * walk forward until we find a duration we can use\n     * or return a failure\n     *\n     * @param {Playlist} playlist the playlist to walk through\n     * @param {number} endSequence the mediaSequence to stop walking on\n     */\n\n    const forwardDuration = function (playlist, endSequence) {\n        let result = 0;\n        let segment;\n        let i = endSequence - playlist.mediaSequence; // Walk forward until we find the earliest segment with timeline\n        // information\n\n        for (; i < playlist.segments.length; i++) {\n            segment = playlist.segments[i];\n            if (typeof segment.start !== 'undefined') {\n                return {\n                    result: segment.start - result,\n                    precise: true\n                };\n            }\n            result += segmentDurationWithParts(playlist, segment);\n            if (typeof segment.end !== 'undefined') {\n                return {\n                    result: segment.end - result,\n                    precise: true\n                };\n            }\n        } // indicate we didn't find a useful duration estimate\n\n        return {\n            result: -1,\n            precise: false\n        };\n    };\n    /**\n     * Calculate the media duration from the segments associated with a\n     * playlist. The duration of a subinterval of the available segments\n     * may be calculated by specifying an end index.\n     *\n     * @param {Object} playlist a media playlist object\n     * @param {number=} endSequence an exclusive upper boundary\n     * for the playlist.  Defaults to playlist length.\n     * @param {number} expired the amount of time that has dropped\n     * off the front of the playlist in a live scenario\n     * @return {number} the duration between the first available segment\n     * and end index.\n     */\n\n    const intervalDuration = function (playlist, endSequence, expired) {\n        if (typeof endSequence === 'undefined') {\n            endSequence = playlist.mediaSequence + playlist.segments.length;\n        }\n        if (endSequence < playlist.mediaSequence) {\n            return 0;\n        } // do a backward walk to estimate the duration\n\n        const backward = backwardDuration(playlist, endSequence);\n        if (backward.precise) {\n            // if we were able to base our duration estimate on timing\n            // information provided directly from the Media Source, return\n            // it\n            return backward.result;\n        } // walk forward to see if a precise duration estimate can be made\n        // that way\n\n        const forward = forwardDuration(playlist, endSequence);\n        if (forward.precise) {\n            // we found a segment that has been buffered and so it's\n            // position is known precisely\n            return forward.result;\n        } // return the less-precise, playlist-based duration estimate\n\n        return backward.result + expired;\n    };\n    /**\n     * Calculates the duration of a playlist. If a start and end index\n     * are specified, the duration will be for the subset of the media\n     * timeline between those two indices. The total duration for live\n     * playlists is always Infinity.\n     *\n     * @param {Object} playlist a media playlist object\n     * @param {number=} endSequence an exclusive upper\n     * boundary for the playlist. Defaults to the playlist media\n     * sequence number plus its length.\n     * @param {number=} expired the amount of time that has\n     * dropped off the front of the playlist in a live scenario\n     * @return {number} the duration between the start index and end\n     * index.\n     */\n\n    const duration = function (playlist, endSequence, expired) {\n        if (!playlist) {\n            return 0;\n        }\n        if (typeof expired !== 'number') {\n            expired = 0;\n        } // if a slice of the total duration is not requested, use\n        // playlist-level duration indicators when they're present\n\n        if (typeof endSequence === 'undefined') {\n            // if present, use the duration specified in the playlist\n            if (playlist.totalDuration) {\n                return playlist.totalDuration;\n            } // duration should be Infinity for live playlists\n\n            if (!playlist.endList) {\n                return window.Infinity;\n            }\n        } // calculate the total duration based on the segment durations\n\n        return intervalDuration(playlist, endSequence, expired);\n    };\n    /**\n     * Calculate the time between two indexes in the current playlist\n     * neight the start- nor the end-index need to be within the current\n     * playlist in which case, the targetDuration of the playlist is used\n     * to approximate the durations of the segments\n     *\n     * @param {Array} options.durationList list to iterate over for durations.\n     * @param {number} options.defaultDuration duration to use for elements before or after the durationList\n     * @param {number} options.startIndex partsAndSegments index to start\n     * @param {number} options.endIndex partsAndSegments index to end.\n     * @return {number} the number of seconds between startIndex and endIndex\n     */\n\n    const sumDurations = function ({\n                                       defaultDuration,\n                                       durationList,\n                                       startIndex,\n                                       endIndex\n                                   }) {\n        let durations = 0;\n        if (startIndex > endIndex) {\n            [startIndex, endIndex] = [endIndex, startIndex];\n        }\n        if (startIndex < 0) {\n            for (let i = startIndex; i < Math.min(0, endIndex); i++) {\n                durations += defaultDuration;\n            }\n            startIndex = 0;\n        }\n        for (let i = startIndex; i < endIndex; i++) {\n            durations += durationList[i].duration;\n        }\n        return durations;\n    };\n    /**\n     * Calculates the playlist end time\n     *\n     * @param {Object} playlist a media playlist object\n     * @param {number=} expired the amount of time that has\n     *                  dropped off the front of the playlist in a live scenario\n     * @param {boolean|false} useSafeLiveEnd a boolean value indicating whether or not the\n     *                        playlist end calculation should consider the safe live end\n     *                        (truncate the playlist end by three segments). This is normally\n     *                        used for calculating the end of the playlist's seekable range.\n     *                        This takes into account the value of liveEdgePadding.\n     *                        Setting liveEdgePadding to 0 is equivalent to setting this to false.\n     * @param {number} liveEdgePadding a number indicating how far from the end of the playlist we should be in seconds.\n     *                 If this is provided, it is used in the safe live end calculation.\n     *                 Setting useSafeLiveEnd=false or liveEdgePadding=0 are equivalent.\n     *                 Corresponds to suggestedPresentationDelay in DASH manifests.\n     * @return {number} the end time of playlist\n     * @function playlistEnd\n     */\n\n    const playlistEnd = function (playlist, expired, useSafeLiveEnd, liveEdgePadding) {\n        if (!playlist || !playlist.segments) {\n            return null;\n        }\n        if (playlist.endList) {\n            return duration(playlist);\n        }\n        if (expired === null) {\n            return null;\n        }\n        expired = expired || 0;\n        let lastSegmentEndTime = intervalDuration(playlist, playlist.mediaSequence + playlist.segments.length, expired);\n        if (useSafeLiveEnd) {\n            liveEdgePadding = typeof liveEdgePadding === 'number' ? liveEdgePadding : liveEdgeDelay(null, playlist);\n            lastSegmentEndTime -= liveEdgePadding;\n        } // don't return a time less than zero\n\n        return Math.max(0, lastSegmentEndTime);\n    };\n    /**\n     * Calculates the interval of time that is currently seekable in a\n     * playlist. The returned time ranges are relative to the earliest\n     * moment in the specified playlist that is still available. A full\n     * seekable implementation for live streams would need to offset\n     * these values by the duration of content that has expired from the\n     * stream.\n     *\n     * @param {Object} playlist a media playlist object\n     * dropped off the front of the playlist in a live scenario\n     * @param {number=} expired the amount of time that has\n     * dropped off the front of the playlist in a live scenario\n     * @param {number} liveEdgePadding how far from the end of the playlist we should be in seconds.\n     *        Corresponds to suggestedPresentationDelay in DASH manifests.\n     * @return {TimeRanges} the periods of time that are valid targets\n     * for seeking\n     */\n\n    const seekable = function (playlist, expired, liveEdgePadding) {\n        const useSafeLiveEnd = true;\n        const seekableStart = expired || 0;\n        const seekableEnd = playlistEnd(playlist, expired, useSafeLiveEnd, liveEdgePadding);\n        if (seekableEnd === null) {\n            return createTimeRanges();\n        }\n        return createTimeRanges(seekableStart, seekableEnd);\n    };\n    /**\n     * Determine the index and estimated starting time of the segment that\n     * contains a specified playback position in a media playlist.\n     *\n     * @param {Object} options.playlist the media playlist to query\n     * @param {number} options.currentTime The number of seconds since the earliest\n     * possible position to determine the containing segment for\n     * @param {number} options.startTime the time when the segment/part starts\n     * @param {number} options.startingSegmentIndex the segment index to start looking at.\n     * @param {number?} [options.startingPartIndex] the part index to look at within the segment.\n     *\n     * @return {Object} an object with partIndex, segmentIndex, and startTime.\n     */\n\n    const getMediaInfoForTime = function ({\n                                              playlist,\n                                              currentTime,\n                                              startingSegmentIndex,\n                                              startingPartIndex,\n                                              startTime,\n                                              exactManifestTimings\n                                          }) {\n        let time = currentTime - startTime;\n        const partsAndSegments = getPartsAndSegments(playlist);\n        let startIndex = 0;\n        for (let i = 0; i < partsAndSegments.length; i++) {\n            const partAndSegment = partsAndSegments[i];\n            if (startingSegmentIndex !== partAndSegment.segmentIndex) {\n                continue;\n            } // skip this if part index does not match.\n\n            if (typeof startingPartIndex === 'number' && typeof partAndSegment.partIndex === 'number' && startingPartIndex !== partAndSegment.partIndex) {\n                continue;\n            }\n            startIndex = i;\n            break;\n        }\n        if (time < 0) {\n            // Walk backward from startIndex in the playlist, adding durations\n            // until we find a segment that contains `time` and return it\n            if (startIndex > 0) {\n                for (let i = startIndex - 1; i >= 0; i--) {\n                    const partAndSegment = partsAndSegments[i];\n                    time += partAndSegment.duration;\n                    if (exactManifestTimings) {\n                        if (time < 0) {\n                            continue;\n                        }\n                    } else if (time + TIME_FUDGE_FACTOR <= 0) {\n                        continue;\n                    }\n                    return {\n                        partIndex: partAndSegment.partIndex,\n                        segmentIndex: partAndSegment.segmentIndex,\n                        startTime: startTime - sumDurations({\n                            defaultDuration: playlist.targetDuration,\n                            durationList: partsAndSegments,\n                            startIndex,\n                            endIndex: i\n                        })\n                    };\n                }\n            } // We were unable to find a good segment within the playlist\n            // so select the first segment\n\n            return {\n                partIndex: partsAndSegments[0] && partsAndSegments[0].partIndex || null,\n                segmentIndex: partsAndSegments[0] && partsAndSegments[0].segmentIndex || 0,\n                startTime: currentTime\n            };\n        } // When startIndex is negative, we first walk forward to first segment\n        // adding target durations. If we \"run out of time\" before getting to\n        // the first segment, return the first segment\n\n        if (startIndex < 0) {\n            for (let i = startIndex; i < 0; i++) {\n                time -= playlist.targetDuration;\n                if (time < 0) {\n                    return {\n                        partIndex: partsAndSegments[0] && partsAndSegments[0].partIndex || null,\n                        segmentIndex: partsAndSegments[0] && partsAndSegments[0].segmentIndex || 0,\n                        startTime: currentTime\n                    };\n                }\n            }\n            startIndex = 0;\n        } // Walk forward from startIndex in the playlist, subtracting durations\n        // until we find a segment that contains `time` and return it\n\n        for (let i = startIndex; i < partsAndSegments.length; i++) {\n            const partAndSegment = partsAndSegments[i];\n            time -= partAndSegment.duration;\n            if (exactManifestTimings) {\n                if (time > 0) {\n                    continue;\n                }\n            } else if (time - TIME_FUDGE_FACTOR >= 0) {\n                continue;\n            }\n            return {\n                partIndex: partAndSegment.partIndex,\n                segmentIndex: partAndSegment.segmentIndex,\n                startTime: startTime + sumDurations({\n                    defaultDuration: playlist.targetDuration,\n                    durationList: partsAndSegments,\n                    startIndex,\n                    endIndex: i\n                })\n            };\n        } // We are out of possible candidates so load the last one...\n\n        return {\n            segmentIndex: partsAndSegments[partsAndSegments.length - 1].segmentIndex,\n            partIndex: partsAndSegments[partsAndSegments.length - 1].partIndex,\n            startTime: currentTime\n        };\n    };\n    /**\n     * Check whether the playlist is excluded or not.\n     *\n     * @param {Object} playlist the media playlist object\n     * @return {boolean} whether the playlist is excluded or not\n     * @function isExcluded\n     */\n\n    const isExcluded = function (playlist) {\n        return playlist.excludeUntil && playlist.excludeUntil > Date.now();\n    };\n    /**\n     * Check whether the playlist is compatible with current playback configuration or has\n     * been excluded permanently for being incompatible.\n     *\n     * @param {Object} playlist the media playlist object\n     * @return {boolean} whether the playlist is incompatible or not\n     * @function isIncompatible\n     */\n\n    const isIncompatible = function (playlist) {\n        return playlist.excludeUntil && playlist.excludeUntil === Infinity;\n    };\n    /**\n     * Check whether the playlist is enabled or not.\n     *\n     * @param {Object} playlist the media playlist object\n     * @return {boolean} whether the playlist is enabled or not\n     * @function isEnabled\n     */\n\n    const isEnabled = function (playlist) {\n        const excluded = isExcluded(playlist);\n        return !playlist.disabled && !excluded;\n    };\n    /**\n     * Check whether the playlist has been manually disabled through the representations api.\n     *\n     * @param {Object} playlist the media playlist object\n     * @return {boolean} whether the playlist is disabled manually or not\n     * @function isDisabled\n     */\n\n    const isDisabled = function (playlist) {\n        return playlist.disabled;\n    };\n    /**\n     * Returns whether the current playlist is an AES encrypted HLS stream\n     *\n     * @return {boolean} true if it's an AES encrypted HLS stream\n     */\n\n    const isAes = function (media) {\n        for (let i = 0; i < media.segments.length; i++) {\n            if (media.segments[i].key) {\n                return true;\n            }\n        }\n        return false;\n    };\n    /**\n     * Checks if the playlist has a value for the specified attribute\n     *\n     * @param {string} attr\n     *        Attribute to check for\n     * @param {Object} playlist\n     *        The media playlist object\n     * @return {boolean}\n     *         Whether the playlist contains a value for the attribute or not\n     * @function hasAttribute\n     */\n\n    const hasAttribute = function (attr, playlist) {\n        return playlist.attributes && playlist.attributes[attr];\n    };\n    /**\n     * Estimates the time required to complete a segment download from the specified playlist\n     *\n     * @param {number} segmentDuration\n     *        Duration of requested segment\n     * @param {number} bandwidth\n     *        Current measured bandwidth of the player\n     * @param {Object} playlist\n     *        The media playlist object\n     * @param {number=} bytesReceived\n     *        Number of bytes already received for the request. Defaults to 0\n     * @return {number|NaN}\n     *         The estimated time to request the segment. NaN if bandwidth information for\n     *         the given playlist is unavailable\n     * @function estimateSegmentRequestTime\n     */\n\n    const estimateSegmentRequestTime = function (segmentDuration, bandwidth, playlist, bytesReceived = 0) {\n        if (!hasAttribute('BANDWIDTH', playlist)) {\n            return NaN;\n        }\n        const size = segmentDuration * playlist.attributes.BANDWIDTH;\n        return (size - bytesReceived * 8) / bandwidth;\n    };\n    /*\n   * Returns whether the current playlist is the lowest rendition\n   *\n   * @return {Boolean} true if on lowest rendition\n   */\n\n    const isLowestEnabledRendition = (main, media) => {\n        if (main.playlists.length === 1) {\n            return true;\n        }\n        const currentBandwidth = media.attributes.BANDWIDTH || Number.MAX_VALUE;\n        return main.playlists.filter(playlist => {\n            if (!isEnabled(playlist)) {\n                return false;\n            }\n            return (playlist.attributes.BANDWIDTH || 0) < currentBandwidth;\n        }).length === 0;\n    };\n    const playlistMatch = (a, b) => {\n        // both playlits are null\n        // or only one playlist is non-null\n        // no match\n        if (!a && !b || !a && b || a && !b) {\n            return false;\n        } // playlist objects are the same, match\n\n        if (a === b) {\n            return true;\n        } // first try to use id as it should be the most\n        // accurate\n\n        if (a.id && b.id && a.id === b.id) {\n            return true;\n        } // next try to use reslovedUri as it should be the\n        // second most accurate.\n\n        if (a.resolvedUri && b.resolvedUri && a.resolvedUri === b.resolvedUri) {\n            return true;\n        } // finally try to use uri as it should be accurate\n        // but might miss a few cases for relative uris\n\n        if (a.uri && b.uri && a.uri === b.uri) {\n            return true;\n        }\n        return false;\n    };\n    const someAudioVariant = function (main, callback) {\n        const AUDIO = main && main.mediaGroups && main.mediaGroups.AUDIO || {};\n        let found = false;\n        for (const groupName in AUDIO) {\n            for (const label in AUDIO[groupName]) {\n                found = callback(AUDIO[groupName][label]);\n                if (found) {\n                    break;\n                }\n            }\n            if (found) {\n                break;\n            }\n        }\n        return !!found;\n    };\n    const isAudioOnly = main => {\n        // we are audio only if we have no main playlists but do\n        // have media group playlists.\n        if (!main || !main.playlists || !main.playlists.length) {\n            // without audio variants or playlists this\n            // is not an audio only main.\n            const found = someAudioVariant(main, variant => variant.playlists && variant.playlists.length || variant.uri);\n            return found;\n        } // if every playlist has only an audio codec it is audio only\n\n        for (let i = 0; i < main.playlists.length; i++) {\n            const playlist = main.playlists[i];\n            const CODECS = playlist.attributes && playlist.attributes.CODECS; // all codecs are audio, this is an audio playlist.\n\n            if (CODECS && CODECS.split(',').every(c => isAudioCodec(c))) {\n                continue;\n            } // playlist is in an audio group it is audio only\n\n            const found = someAudioVariant(main, variant => playlistMatch(playlist, variant));\n            if (found) {\n                continue;\n            } // if we make it here this playlist isn't audio and we\n            // are not audio only\n\n            return false;\n        } // if we make it past every playlist without returning, then\n        // this is an audio only playlist.\n\n        return true;\n    }; // exports\n\n    var Playlist = {\n        liveEdgeDelay,\n        duration,\n        seekable,\n        getMediaInfoForTime,\n        isEnabled,\n        isDisabled,\n        isExcluded,\n        isIncompatible,\n        playlistEnd,\n        isAes,\n        hasAttribute,\n        estimateSegmentRequestTime,\n        isLowestEnabledRendition,\n        isAudioOnly,\n        playlistMatch,\n        segmentDurationWithParts\n    };\n    const {\n        log\n    } = videojs;\n    const createPlaylistID = (index, uri) => {\n        return `${index}-${uri}`;\n    }; // default function for creating a group id\n\n    const groupID = (type, group, label) => {\n        return `placeholder-uri-${type}-${group}-${label}`;\n    };\n    /**\n     * Parses a given m3u8 playlist\n     *\n     * @param {Function} [onwarn]\n     *        a function to call when the parser triggers a warning event.\n     * @param {Function} [oninfo]\n     *        a function to call when the parser triggers an info event.\n     * @param {string} manifestString\n     *        The downloaded manifest string\n     * @param {Object[]} [customTagParsers]\n     *        An array of custom tag parsers for the m3u8-parser instance\n     * @param {Object[]} [customTagMappers]\n     *        An array of custom tag mappers for the m3u8-parser instance\n     * @param {boolean} [llhls]\n     *        Whether to keep ll-hls features in the manifest after parsing.\n     * @return {Object}\n     *         The manifest object\n     */\n\n    const parseManifest = ({\n                               onwarn,\n                               oninfo,\n                               manifestString,\n                               customTagParsers = [],\n                               customTagMappers = [],\n                               llhls\n                           }) => {\n        const parser = new Parser();\n        if (onwarn) {\n            parser.on('warn', onwarn);\n        }\n        if (oninfo) {\n            parser.on('info', oninfo);\n        }\n        customTagParsers.forEach(customParser => parser.addParser(customParser));\n        customTagMappers.forEach(mapper => parser.addTagMapper(mapper));\n        parser.push(manifestString);\n        parser.end();\n        const manifest = parser.manifest; // remove llhls features from the parsed manifest\n        // if we don't want llhls support.\n\n        if (!llhls) {\n            ['preloadSegment', 'skip', 'serverControl', 'renditionReports', 'partInf', 'partTargetDuration'].forEach(function (k) {\n                if (manifest.hasOwnProperty(k)) {\n                    delete manifest[k];\n                }\n            });\n            if (manifest.segments) {\n                manifest.segments.forEach(function (segment) {\n                    ['parts', 'preloadHints'].forEach(function (k) {\n                        if (segment.hasOwnProperty(k)) {\n                            delete segment[k];\n                        }\n                    });\n                });\n            }\n        }\n        if (!manifest.targetDuration) {\n            let targetDuration = 10;\n            if (manifest.segments && manifest.segments.length) {\n                targetDuration = manifest.segments.reduce((acc, s) => Math.max(acc, s.duration), 0);\n            }\n            if (onwarn) {\n                onwarn(`manifest has no targetDuration defaulting to ${targetDuration}`);\n            }\n            manifest.targetDuration = targetDuration;\n        }\n        const parts = getLastParts(manifest);\n        if (parts.length && !manifest.partTargetDuration) {\n            const partTargetDuration = parts.reduce((acc, p) => Math.max(acc, p.duration), 0);\n            if (onwarn) {\n                onwarn(`manifest has no partTargetDuration defaulting to ${partTargetDuration}`);\n                log.error('LL-HLS manifest has parts but lacks required #EXT-X-PART-INF:PART-TARGET value. See https://datatracker.ietf.org/doc/html/draft-pantos-hls-rfc8216bis-09#section-4.4.3.7. Playback is not guaranteed.');\n            }\n            manifest.partTargetDuration = partTargetDuration;\n        }\n        return manifest;\n    };\n    /**\n     * Loops through all supported media groups in main and calls the provided\n     * callback for each group\n     *\n     * @param {Object} main\n     *        The parsed main manifest object\n     * @param {Function} callback\n     *        Callback to call for each media group\n     */\n\n    const forEachMediaGroup = (main, callback) => {\n        if (!main.mediaGroups) {\n            return;\n        }\n        ['AUDIO', 'SUBTITLES'].forEach(mediaType => {\n            if (!main.mediaGroups[mediaType]) {\n                return;\n            }\n            for (const groupKey in main.mediaGroups[mediaType]) {\n                for (const labelKey in main.mediaGroups[mediaType][groupKey]) {\n                    const mediaProperties = main.mediaGroups[mediaType][groupKey][labelKey];\n                    callback(mediaProperties, mediaType, groupKey, labelKey);\n                }\n            }\n        });\n    };\n    /**\n     * Adds properties and attributes to the playlist to keep consistent functionality for\n     * playlists throughout VHS.\n     *\n     * @param {Object} config\n     *        Arguments object\n     * @param {Object} config.playlist\n     *        The media playlist\n     * @param {string} [config.uri]\n     *        The uri to the media playlist (if media playlist is not from within a main\n     *        playlist)\n     * @param {string} id\n     *        ID to use for the playlist\n     */\n\n    const setupMediaPlaylist = ({\n                                    playlist,\n                                    uri,\n                                    id\n                                }) => {\n        playlist.id = id;\n        playlist.playlistErrors_ = 0;\n        if (uri) {\n            // For media playlists, m3u8-parser does not have access to a URI, as HLS media\n            // playlists do not contain their own source URI, but one is needed for consistency in\n            // VHS.\n            playlist.uri = uri;\n        } // For HLS main playlists, even though certain attributes MUST be defined, the\n        // stream may still be played without them.\n        // For HLS media playlists, m3u8-parser does not attach an attributes object to the\n        // manifest.\n        //\n        // To avoid undefined reference errors through the project, and make the code easier\n        // to write/read, add an empty attributes object for these cases.\n\n        playlist.attributes = playlist.attributes || {};\n    };\n    /**\n     * Adds ID, resolvedUri, and attributes properties to each playlist of the main, where\n     * necessary. In addition, creates playlist IDs for each playlist and adds playlist ID to\n     * playlist references to the playlists array.\n     *\n     * @param {Object} main\n     *        The main playlist\n     */\n\n    const setupMediaPlaylists = main => {\n        let i = main.playlists.length;\n        while (i--) {\n            const playlist = main.playlists[i];\n            setupMediaPlaylist({\n                playlist,\n                id: createPlaylistID(i, playlist.uri)\n            });\n            playlist.resolvedUri = resolveUrl(main.uri, playlist.uri);\n            main.playlists[playlist.id] = playlist; // URI reference added for backwards compatibility\n\n            main.playlists[playlist.uri] = playlist; // Although the spec states an #EXT-X-STREAM-INF tag MUST have a BANDWIDTH attribute,\n            // the stream can be played without it. Although an attributes property may have been\n            // added to the playlist to prevent undefined references, issue a warning to fix the\n            // manifest.\n\n            if (!playlist.attributes.BANDWIDTH) {\n                log.warn('Invalid playlist STREAM-INF detected. Missing BANDWIDTH attribute.');\n            }\n        }\n    };\n    /**\n     * Adds resolvedUri properties to each media group.\n     *\n     * @param {Object} main\n     *        The main playlist\n     */\n\n    const resolveMediaGroupUris = main => {\n        forEachMediaGroup(main, properties => {\n            if (properties.uri) {\n                properties.resolvedUri = resolveUrl(main.uri, properties.uri);\n            }\n        });\n    };\n    /**\n     * Creates a main playlist wrapper to insert a sole media playlist into.\n     *\n     * @param {Object} media\n     *        Media playlist\n     * @param {string} uri\n     *        The media URI\n     *\n     * @return {Object}\n     *         main playlist\n     */\n\n    const mainForMedia = (media, uri) => {\n        const id = createPlaylistID(0, uri);\n        const main = {\n            mediaGroups: {\n                'AUDIO': {},\n                'VIDEO': {},\n                'CLOSED-CAPTIONS': {},\n                'SUBTITLES': {}\n            },\n            uri: window.location.href,\n            resolvedUri: window.location.href,\n            playlists: [{\n                uri,\n                id,\n                resolvedUri: uri,\n                // m3u8-parser does not attach an attributes property to media playlists so make\n                // sure that the property is attached to avoid undefined reference errors\n                attributes: {}\n            }]\n        }; // set up ID reference\n\n        main.playlists[id] = main.playlists[0]; // URI reference added for backwards compatibility\n\n        main.playlists[uri] = main.playlists[0];\n        return main;\n    };\n    /**\n     * Does an in-place update of the main manifest to add updated playlist URI references\n     * as well as other properties needed by VHS that aren't included by the parser.\n     *\n     * @param {Object} main\n     *        main manifest object\n     * @param {string} uri\n     *        The source URI\n     * @param {function} createGroupID\n     *        A function to determine how to create the groupID for mediaGroups\n     */\n\n    const addPropertiesToMain = (main, uri, createGroupID = groupID) => {\n        main.uri = uri;\n        for (let i = 0; i < main.playlists.length; i++) {\n            if (!main.playlists[i].uri) {\n                // Set up phony URIs for the playlists since playlists are referenced by their URIs\n                // throughout VHS, but some formats (e.g., DASH) don't have external URIs\n                // TODO: consider adding dummy URIs in mpd-parser\n                const phonyUri = `placeholder-uri-${i}`;\n                main.playlists[i].uri = phonyUri;\n            }\n        }\n        const audioOnlyMain = isAudioOnly(main);\n        forEachMediaGroup(main, (properties, mediaType, groupKey, labelKey) => {\n            // add a playlist array under properties\n            if (!properties.playlists || !properties.playlists.length) {\n                // If the manifest is audio only and this media group does not have a uri, check\n                // if the media group is located in the main list of playlists. If it is, don't add\n                // placeholder properties as it shouldn't be considered an alternate audio track.\n                if (audioOnlyMain && mediaType === 'AUDIO' && !properties.uri) {\n                    for (let i = 0; i < main.playlists.length; i++) {\n                        const p = main.playlists[i];\n                        if (p.attributes && p.attributes.AUDIO && p.attributes.AUDIO === groupKey) {\n                            return;\n                        }\n                    }\n                }\n                properties.playlists = [_extends$1({}, properties)];\n            }\n            properties.playlists.forEach(function (p, i) {\n                const groupId = createGroupID(mediaType, groupKey, labelKey, p);\n                const id = createPlaylistID(i, groupId);\n                if (p.uri) {\n                    p.resolvedUri = p.resolvedUri || resolveUrl(main.uri, p.uri);\n                } else {\n                    // DEPRECATED, this has been added to prevent a breaking change.\n                    // previously we only ever had a single media group playlist, so\n                    // we mark the first playlist uri without prepending the index as we used to\n                    // ideally we would do all of the playlists the same way.\n                    p.uri = i === 0 ? groupId : id; // don't resolve a placeholder uri to an absolute url, just use\n                    // the placeholder again\n\n                    p.resolvedUri = p.uri;\n                }\n                p.id = p.id || id; // add an empty attributes object, all playlists are\n                // expected to have this.\n\n                p.attributes = p.attributes || {}; // setup ID and URI references (URI for backwards compatibility)\n\n                main.playlists[p.id] = p;\n                main.playlists[p.uri] = p;\n            });\n        });\n        setupMediaPlaylists(main);\n        resolveMediaGroupUris(main);\n    };\n\n    /**\n     * @file playlist-loader.js\n     *\n     * A state machine that manages the loading, caching, and updating of\n     * M3U8 playlists.\n     *\n     */\n    const {\n        EventTarget: EventTarget$1\n    } = videojs;\n    const addLLHLSQueryDirectives = (uri, media) => {\n        if (media.endList || !media.serverControl) {\n            return uri;\n        }\n        const parameters = {};\n        if (media.serverControl.canBlockReload) {\n            const {\n                preloadSegment\n            } = media; // next msn is a zero based value, length is not.\n\n            let nextMSN = media.mediaSequence + media.segments.length; // If preload segment has parts then it is likely\n            // that we are going to request a part of that preload segment.\n            // the logic below is used to determine that.\n\n            if (preloadSegment) {\n                const parts = preloadSegment.parts || []; // _HLS_part is a zero based index\n\n                const nextPart = getKnownPartCount(media) - 1; // if nextPart is > -1 and not equal to just the\n                // length of parts, then we know we had part preload hints\n                // and we need to add the _HLS_part= query\n\n                if (nextPart > -1 && nextPart !== parts.length - 1) {\n                    // add existing parts to our preload hints\n                    // eslint-disable-next-line\n                    parameters._HLS_part = nextPart;\n                } // this if statement makes sure that we request the msn\n                // of the preload segment if:\n                // 1. the preload segment had parts (and was not yet a full segment)\n                //    but was added to our segments array\n                // 2. the preload segment had preload hints for parts that are not in\n                //    the manifest yet.\n                // in all other cases we want the segment after the preload segment\n                // which will be given by using media.segments.length because it is 1 based\n                // rather than 0 based.\n\n                if (nextPart > -1 || parts.length) {\n                    nextMSN--;\n                }\n            } // add _HLS_msn= in front of any _HLS_part query\n            // eslint-disable-next-line\n\n            parameters._HLS_msn = nextMSN;\n        }\n        if (media.serverControl && media.serverControl.canSkipUntil) {\n            // add _HLS_skip= infront of all other queries.\n            // eslint-disable-next-line\n            parameters._HLS_skip = media.serverControl.canSkipDateranges ? 'v2' : 'YES';\n        }\n        if (Object.keys(parameters).length) {\n            const parsedUri = new window.URL(uri);\n            ['_HLS_skip', '_HLS_msn', '_HLS_part'].forEach(function (name) {\n                if (!parameters.hasOwnProperty(name)) {\n                    return;\n                }\n                parsedUri.searchParams.set(name, parameters[name]);\n            });\n            uri = parsedUri.toString();\n        }\n        return uri;\n    };\n    /**\n     * Returns a new segment object with properties and\n     * the parts array merged.\n     *\n     * @param {Object} a the old segment\n     * @param {Object} b the new segment\n     *\n     * @return {Object} the merged segment\n     */\n\n    const updateSegment = (a, b) => {\n        if (!a) {\n            return b;\n        }\n        const result = merge(a, b); // if only the old segment has preload hints\n        // and the new one does not, remove preload hints.\n\n        if (a.preloadHints && !b.preloadHints) {\n            delete result.preloadHints;\n        } // if only the old segment has parts\n        // then the parts are no longer valid\n\n        if (a.parts && !b.parts) {\n            delete result.parts; // if both segments have parts\n            // copy part propeties from the old segment\n            // to the new one.\n        } else if (a.parts && b.parts) {\n            for (let i = 0; i < b.parts.length; i++) {\n                if (a.parts && a.parts[i]) {\n                    result.parts[i] = merge(a.parts[i], b.parts[i]);\n                }\n            }\n        } // set skipped to false for segments that have\n        // have had information merged from the old segment.\n\n        if (!a.skipped && b.skipped) {\n            result.skipped = false;\n        } // set preload to false for segments that have\n        // had information added in the new segment.\n\n        if (a.preload && !b.preload) {\n            result.preload = false;\n        }\n        return result;\n    };\n    /**\n     * Returns a new array of segments that is the result of merging\n     * properties from an older list of segments onto an updated\n     * list. No properties on the updated playlist will be ovewritten.\n     *\n     * @param {Array} original the outdated list of segments\n     * @param {Array} update the updated list of segments\n     * @param {number=} offset the index of the first update\n     * segment in the original segment list. For non-live playlists,\n     * this should always be zero and does not need to be\n     * specified. For live playlists, it should be the difference\n     * between the media sequence numbers in the original and updated\n     * playlists.\n     * @return {Array} a list of merged segment objects\n     */\n\n    const updateSegments = (original, update, offset) => {\n        const oldSegments = original.slice();\n        const newSegments = update.slice();\n        offset = offset || 0;\n        const result = [];\n        let currentMap;\n        for (let newIndex = 0; newIndex < newSegments.length; newIndex++) {\n            const oldSegment = oldSegments[newIndex + offset];\n            const newSegment = newSegments[newIndex];\n            if (oldSegment) {\n                currentMap = oldSegment.map || currentMap;\n                result.push(updateSegment(oldSegment, newSegment));\n            } else {\n                // carry over map to new segment if it is missing\n                if (currentMap && !newSegment.map) {\n                    newSegment.map = currentMap;\n                }\n                result.push(newSegment);\n            }\n        }\n        return result;\n    };\n    const resolveSegmentUris = (segment, baseUri) => {\n        // preloadSegment will not have a uri at all\n        // as the segment isn't actually in the manifest yet, only parts\n        if (!segment.resolvedUri && segment.uri) {\n            segment.resolvedUri = resolveUrl(baseUri, segment.uri);\n        }\n        if (segment.key && !segment.key.resolvedUri) {\n            segment.key.resolvedUri = resolveUrl(baseUri, segment.key.uri);\n        }\n        if (segment.map && !segment.map.resolvedUri) {\n            segment.map.resolvedUri = resolveUrl(baseUri, segment.map.uri);\n        }\n        if (segment.map && segment.map.key && !segment.map.key.resolvedUri) {\n            segment.map.key.resolvedUri = resolveUrl(baseUri, segment.map.key.uri);\n        }\n        if (segment.parts && segment.parts.length) {\n            segment.parts.forEach(p => {\n                if (p.resolvedUri) {\n                    return;\n                }\n                p.resolvedUri = resolveUrl(baseUri, p.uri);\n            });\n        }\n        if (segment.preloadHints && segment.preloadHints.length) {\n            segment.preloadHints.forEach(p => {\n                if (p.resolvedUri) {\n                    return;\n                }\n                p.resolvedUri = resolveUrl(baseUri, p.uri);\n            });\n        }\n    };\n    const getAllSegments = function (media) {\n        const segments = media.segments || [];\n        const preloadSegment = media.preloadSegment; // a preloadSegment with only preloadHints is not currently\n        // a usable segment, only include a preloadSegment that has\n        // parts.\n\n        if (preloadSegment && preloadSegment.parts && preloadSegment.parts.length) {\n            // if preloadHints has a MAP that means that the\n            // init segment is going to change. We cannot use any of the parts\n            // from this preload segment.\n            if (preloadSegment.preloadHints) {\n                for (let i = 0; i < preloadSegment.preloadHints.length; i++) {\n                    if (preloadSegment.preloadHints[i].type === 'MAP') {\n                        return segments;\n                    }\n                }\n            } // set the duration for our preload segment to target duration.\n\n            preloadSegment.duration = media.targetDuration;\n            preloadSegment.preload = true;\n            segments.push(preloadSegment);\n        }\n        return segments;\n    }; // consider the playlist unchanged if the playlist object is the same or\n    // the number of segments is equal, the media sequence number is unchanged,\n    // and this playlist hasn't become the end of the playlist\n\n    const isPlaylistUnchanged = (a, b) => a === b || a.segments && b.segments && a.segments.length === b.segments.length && a.endList === b.endList && a.mediaSequence === b.mediaSequence && a.preloadSegment === b.preloadSegment;\n    /**\n     * Returns a new main playlist that is the result of merging an\n     * updated media playlist into the original version. If the\n     * updated media playlist does not match any of the playlist\n     * entries in the original main playlist, null is returned.\n     *\n     * @param {Object} main a parsed main M3U8 object\n     * @param {Object} media a parsed media M3U8 object\n     * @return {Object} a new object that represents the original\n     * main playlist with the updated media playlist merged in, or\n     * null if the merge produced no change.\n     */\n\n    const updateMain$1 = (main, newMedia, unchangedCheck = isPlaylistUnchanged) => {\n        const result = merge(main, {});\n        const oldMedia = result.playlists[newMedia.id];\n        if (!oldMedia) {\n            return null;\n        }\n        if (unchangedCheck(oldMedia, newMedia)) {\n            return null;\n        }\n        newMedia.segments = getAllSegments(newMedia);\n        const mergedPlaylist = merge(oldMedia, newMedia); // always use the new media's preload segment\n\n        if (mergedPlaylist.preloadSegment && !newMedia.preloadSegment) {\n            delete mergedPlaylist.preloadSegment;\n        } // if the update could overlap existing segment information, merge the two segment lists\n\n        if (oldMedia.segments) {\n            if (newMedia.skip) {\n                newMedia.segments = newMedia.segments || []; // add back in objects for skipped segments, so that we merge\n                // old properties into the new segments\n\n                for (let i = 0; i < newMedia.skip.skippedSegments; i++) {\n                    newMedia.segments.unshift({\n                        skipped: true\n                    });\n                }\n            }\n            mergedPlaylist.segments = updateSegments(oldMedia.segments, newMedia.segments, newMedia.mediaSequence - oldMedia.mediaSequence);\n        } // resolve any segment URIs to prevent us from having to do it later\n\n        mergedPlaylist.segments.forEach(segment => {\n            resolveSegmentUris(segment, mergedPlaylist.resolvedUri);\n        }); // TODO Right now in the playlists array there are two references to each playlist, one\n        // that is referenced by index, and one by URI. The index reference may no longer be\n        // necessary.\n\n        for (let i = 0; i < result.playlists.length; i++) {\n            if (result.playlists[i].id === newMedia.id) {\n                result.playlists[i] = mergedPlaylist;\n            }\n        }\n        result.playlists[newMedia.id] = mergedPlaylist; // URI reference added for backwards compatibility\n\n        result.playlists[newMedia.uri] = mergedPlaylist; // update media group playlist references.\n\n        forEachMediaGroup(main, (properties, mediaType, groupKey, labelKey) => {\n            if (!properties.playlists) {\n                return;\n            }\n            for (let i = 0; i < properties.playlists.length; i++) {\n                if (newMedia.id === properties.playlists[i].id) {\n                    properties.playlists[i] = mergedPlaylist;\n                }\n            }\n        });\n        return result;\n    };\n    /**\n     * Calculates the time to wait before refreshing a live playlist\n     *\n     * @param {Object} media\n     *        The current media\n     * @param {boolean} update\n     *        True if there were any updates from the last refresh, false otherwise\n     * @return {number}\n     *         The time in ms to wait before refreshing the live playlist\n     */\n\n    const refreshDelay = (media, update) => {\n        const segments = media.segments || [];\n        const lastSegment = segments[segments.length - 1];\n        const lastPart = lastSegment && lastSegment.parts && lastSegment.parts[lastSegment.parts.length - 1];\n        const lastDuration = lastPart && lastPart.duration || lastSegment && lastSegment.duration;\n        if (update && lastDuration) {\n            return lastDuration * 1000;\n        } // if the playlist is unchanged since the last reload or last segment duration\n        // cannot be determined, try again after half the target duration\n\n        return (media.partTargetDuration || media.targetDuration || 10) * 500;\n    };\n    /**\n     * Load a playlist from a remote location\n     *\n     * @class PlaylistLoader\n     * @extends Stream\n     * @param {string|Object} src url or object of manifest\n     * @param {boolean} withCredentials the withCredentials xhr option\n     * @class\n     */\n\n    class PlaylistLoader extends EventTarget$1 {\n        constructor(src, vhs, options = {}) {\n            super();\n            if (!src) {\n                throw new Error('A non-empty playlist URL or object is required');\n            }\n            this.logger_ = logger('PlaylistLoader');\n            const {\n                withCredentials = false\n            } = options;\n            this.src = src;\n            this.vhs_ = vhs;\n            this.withCredentials = withCredentials;\n            const vhsOptions = vhs.options_;\n            this.customTagParsers = vhsOptions && vhsOptions.customTagParsers || [];\n            this.customTagMappers = vhsOptions && vhsOptions.customTagMappers || [];\n            this.llhls = vhsOptions && vhsOptions.llhls; // initialize the loader state\n\n            this.state = 'HAVE_NOTHING'; // live playlist staleness timeout\n\n            this.handleMediaupdatetimeout_ = this.handleMediaupdatetimeout_.bind(this);\n            this.on('mediaupdatetimeout', this.handleMediaupdatetimeout_);\n        }\n        handleMediaupdatetimeout_() {\n            if (this.state !== 'HAVE_METADATA') {\n                // only refresh the media playlist if no other activity is going on\n                return;\n            }\n            const media = this.media();\n            let uri = resolveUrl(this.main.uri, media.uri);\n            if (this.llhls) {\n                uri = addLLHLSQueryDirectives(uri, media);\n            }\n            this.state = 'HAVE_CURRENT_METADATA';\n            this.request = this.vhs_.xhr({\n                uri,\n                withCredentials: this.withCredentials\n            }, (error, req) => {\n                // disposed\n                if (!this.request) {\n                    return;\n                }\n                if (error) {\n                    return this.playlistRequestError(this.request, this.media(), 'HAVE_METADATA');\n                }\n                this.haveMetadata({\n                    playlistString: this.request.responseText,\n                    url: this.media().uri,\n                    id: this.media().id\n                });\n            });\n        }\n        playlistRequestError(xhr, playlist, startingState) {\n            const {\n                uri,\n                id\n            } = playlist; // any in-flight request is now finished\n\n            this.request = null;\n            if (startingState) {\n                this.state = startingState;\n            }\n            this.error = {\n                playlist: this.main.playlists[id],\n                status: xhr.status,\n                message: `HLS playlist request error at URL: ${uri}.`,\n                responseText: xhr.responseText,\n                code: xhr.status >= 500 ? 4 : 2\n            };\n            this.trigger('error');\n        }\n        parseManifest_({\n                           url,\n                           manifestString\n                       }) {\n            return parseManifest({\n                onwarn: ({\n                             message\n                         }) => this.logger_(`m3u8-parser warn for ${url}: ${message}`),\n                oninfo: ({\n                             message\n                         }) => this.logger_(`m3u8-parser info for ${url}: ${message}`),\n                manifestString,\n                customTagParsers: this.customTagParsers,\n                customTagMappers: this.customTagMappers,\n                llhls: this.llhls\n            });\n        }\n        /**\n         * Update the playlist loader's state in response to a new or updated playlist.\n         *\n         * @param {string} [playlistString]\n         *        Playlist string (if playlistObject is not provided)\n         * @param {Object} [playlistObject]\n         *        Playlist object (if playlistString is not provided)\n         * @param {string} url\n         *        URL of playlist\n         * @param {string} id\n         *        ID to use for playlist\n         */\n\n        haveMetadata({\n                         playlistString,\n                         playlistObject,\n                         url,\n                         id\n                     }) {\n            // any in-flight request is now finished\n            this.request = null;\n            this.state = 'HAVE_METADATA';\n            const playlist = playlistObject || this.parseManifest_({\n                url,\n                manifestString: playlistString\n            });\n            playlist.lastRequest = Date.now();\n            setupMediaPlaylist({\n                playlist,\n                uri: url,\n                id\n            }); // merge this playlist into the main manifest\n\n            const update = updateMain$1(this.main, playlist);\n            this.targetDuration = playlist.partTargetDuration || playlist.targetDuration;\n            this.pendingMedia_ = null;\n            if (update) {\n                this.main = update;\n                this.media_ = this.main.playlists[id];\n            } else {\n                this.trigger('playlistunchanged');\n            }\n            this.updateMediaUpdateTimeout_(refreshDelay(this.media(), !!update));\n            this.trigger('loadedplaylist');\n        }\n        /**\n         * Abort any outstanding work and clean up.\n         */\n\n        dispose() {\n            this.trigger('dispose');\n            this.stopRequest();\n            window.clearTimeout(this.mediaUpdateTimeout);\n            window.clearTimeout(this.finalRenditionTimeout);\n            this.off();\n        }\n        stopRequest() {\n            if (this.request) {\n                const oldRequest = this.request;\n                this.request = null;\n                oldRequest.onreadystatechange = null;\n                oldRequest.abort();\n            }\n        }\n        /**\n         * When called without any arguments, returns the currently\n         * active media playlist. When called with a single argument,\n         * triggers the playlist loader to asynchronously switch to the\n         * specified media playlist. Calling this method while the\n         * loader is in the HAVE_NOTHING causes an error to be emitted\n         * but otherwise has no effect.\n         *\n         * @param {Object=} playlist the parsed media playlist\n         * object to switch to\n         * @param {boolean=} shouldDelay whether we should delay the request by half target duration\n         *\n         * @return {Playlist} the current loaded media\n         */\n\n        media(playlist, shouldDelay) {\n            // getter\n            if (!playlist) {\n                return this.media_;\n            } // setter\n\n            if (this.state === 'HAVE_NOTHING') {\n                throw new Error('Cannot switch media playlist from ' + this.state);\n            } // find the playlist object if the target playlist has been\n            // specified by URI\n\n            if (typeof playlist === 'string') {\n                if (!this.main.playlists[playlist]) {\n                    throw new Error('Unknown playlist URI: ' + playlist);\n                }\n                playlist = this.main.playlists[playlist];\n            }\n            window.clearTimeout(this.finalRenditionTimeout);\n            if (shouldDelay) {\n                const delay = (playlist.partTargetDuration || playlist.targetDuration) / 2 * 1000 || 5 * 1000;\n                this.finalRenditionTimeout = window.setTimeout(this.media.bind(this, playlist, false), delay);\n                return;\n            }\n            const startingState = this.state;\n            const mediaChange = !this.media_ || playlist.id !== this.media_.id;\n            const mainPlaylistRef = this.main.playlists[playlist.id]; // switch to fully loaded playlists immediately\n\n            if (mainPlaylistRef && mainPlaylistRef.endList ||\n                // handle the case of a playlist object (e.g., if using vhs-json with a resolved\n                // media playlist or, for the case of demuxed audio, a resolved audio media group)\n                playlist.endList && playlist.segments.length) {\n                // abort outstanding playlist requests\n                if (this.request) {\n                    this.request.onreadystatechange = null;\n                    this.request.abort();\n                    this.request = null;\n                }\n                this.state = 'HAVE_METADATA';\n                this.media_ = playlist; // trigger media change if the active media has been updated\n\n                if (mediaChange) {\n                    this.trigger('mediachanging');\n                    if (startingState === 'HAVE_MAIN_MANIFEST') {\n                        // The initial playlist was a main manifest, and the first media selected was\n                        // also provided (in the form of a resolved playlist object) as part of the\n                        // source object (rather than just a URL). Therefore, since the media playlist\n                        // doesn't need to be requested, loadedmetadata won't trigger as part of the\n                        // normal flow, and needs an explicit trigger here.\n                        this.trigger('loadedmetadata');\n                    } else {\n                        this.trigger('mediachange');\n                    }\n                }\n                return;\n            } // We update/set the timeout here so that live playlists\n            // that are not a media change will \"start\" the loader as expected.\n            // We expect that this function will start the media update timeout\n            // cycle again. This also prevents a playlist switch failure from\n            // causing us to stall during live.\n\n            this.updateMediaUpdateTimeout_(refreshDelay(playlist, true)); // switching to the active playlist is a no-op\n\n            if (!mediaChange) {\n                return;\n            }\n            this.state = 'SWITCHING_MEDIA'; // there is already an outstanding playlist request\n\n            if (this.request) {\n                if (playlist.resolvedUri === this.request.url) {\n                    // requesting to switch to the same playlist multiple times\n                    // has no effect after the first\n                    return;\n                }\n                this.request.onreadystatechange = null;\n                this.request.abort();\n                this.request = null;\n            } // request the new playlist\n\n            if (this.media_) {\n                this.trigger('mediachanging');\n            }\n            this.pendingMedia_ = playlist;\n            this.request = this.vhs_.xhr({\n                uri: playlist.resolvedUri,\n                withCredentials: this.withCredentials\n            }, (error, req) => {\n                // disposed\n                if (!this.request) {\n                    return;\n                }\n                playlist.lastRequest = Date.now();\n                playlist.resolvedUri = resolveManifestRedirect(playlist.resolvedUri, req);\n                if (error) {\n                    return this.playlistRequestError(this.request, playlist, startingState);\n                }\n                this.haveMetadata({\n                    playlistString: req.responseText,\n                    url: playlist.uri,\n                    id: playlist.id\n                }); // fire loadedmetadata the first time a media playlist is loaded\n\n                if (startingState === 'HAVE_MAIN_MANIFEST') {\n                    this.trigger('loadedmetadata');\n                } else {\n                    this.trigger('mediachange');\n                }\n            });\n        }\n        /**\n         * pause loading of the playlist\n         */\n\n        pause() {\n            if (this.mediaUpdateTimeout) {\n                window.clearTimeout(this.mediaUpdateTimeout);\n                this.mediaUpdateTimeout = null;\n            }\n            this.stopRequest();\n            if (this.state === 'HAVE_NOTHING') {\n                // If we pause the loader before any data has been retrieved, its as if we never\n                // started, so reset to an unstarted state.\n                this.started = false;\n            } // Need to restore state now that no activity is happening\n\n            if (this.state === 'SWITCHING_MEDIA') {\n                // if the loader was in the process of switching media, it should either return to\n                // HAVE_MAIN_MANIFEST or HAVE_METADATA depending on if the loader has loaded a media\n                // playlist yet. This is determined by the existence of loader.media_\n                if (this.media_) {\n                    this.state = 'HAVE_METADATA';\n                } else {\n                    this.state = 'HAVE_MAIN_MANIFEST';\n                }\n            } else if (this.state === 'HAVE_CURRENT_METADATA') {\n                this.state = 'HAVE_METADATA';\n            }\n        }\n        /**\n         * start loading of the playlist\n         */\n\n        load(shouldDelay) {\n            if (this.mediaUpdateTimeout) {\n                window.clearTimeout(this.mediaUpdateTimeout);\n                this.mediaUpdateTimeout = null;\n            }\n            const media = this.media();\n            if (shouldDelay) {\n                const delay = media ? (media.partTargetDuration || media.targetDuration) / 2 * 1000 : 5 * 1000;\n                this.mediaUpdateTimeout = window.setTimeout(() => {\n                    this.mediaUpdateTimeout = null;\n                    this.load();\n                }, delay);\n                return;\n            }\n            if (!this.started) {\n                this.start();\n                return;\n            }\n            if (media && !media.endList) {\n                this.trigger('mediaupdatetimeout');\n            } else {\n                this.trigger('loadedplaylist');\n            }\n        }\n        updateMediaUpdateTimeout_(delay) {\n            if (this.mediaUpdateTimeout) {\n                window.clearTimeout(this.mediaUpdateTimeout);\n                this.mediaUpdateTimeout = null;\n            } // we only have use mediaupdatetimeout for live playlists.\n\n            if (!this.media() || this.media().endList) {\n                return;\n            }\n            this.mediaUpdateTimeout = window.setTimeout(() => {\n                this.mediaUpdateTimeout = null;\n                this.trigger('mediaupdatetimeout');\n                this.updateMediaUpdateTimeout_(delay);\n            }, delay);\n        }\n        /**\n         * start loading of the playlist\n         */\n\n        start() {\n            this.started = true;\n            if (typeof this.src === 'object') {\n                // in the case of an entirely constructed manifest object (meaning there's no actual\n                // manifest on a server), default the uri to the page's href\n                if (!this.src.uri) {\n                    this.src.uri = window.location.href;\n                } // resolvedUri is added on internally after the initial request. Since there's no\n                // request for pre-resolved manifests, add on resolvedUri here.\n\n                this.src.resolvedUri = this.src.uri; // Since a manifest object was passed in as the source (instead of a URL), the first\n                // request can be skipped (since the top level of the manifest, at a minimum, is\n                // already available as a parsed manifest object). However, if the manifest object\n                // represents a main playlist, some media playlists may need to be resolved before\n                // the starting segment list is available. Therefore, go directly to setup of the\n                // initial playlist, and let the normal flow continue from there.\n                //\n                // Note that the call to setup is asynchronous, as other sections of VHS may assume\n                // that the first request is asynchronous.\n\n                setTimeout(() => {\n                    this.setupInitialPlaylist(this.src);\n                }, 0);\n                return;\n            } // request the specified URL\n\n            this.request = this.vhs_.xhr({\n                uri: this.src,\n                withCredentials: this.withCredentials\n            }, (error, req) => {\n                // disposed\n                if (!this.request) {\n                    return;\n                } // clear the loader's request reference\n\n                this.request = null;\n                if (error) {\n                    this.error = {\n                        status: req.status,\n                        message: `HLS playlist request error at URL: ${this.src}.`,\n                        responseText: req.responseText,\n                        // MEDIA_ERR_NETWORK\n                        code: 2\n                    };\n                    if (this.state === 'HAVE_NOTHING') {\n                        this.started = false;\n                    }\n                    return this.trigger('error');\n                }\n                this.src = resolveManifestRedirect(this.src, req);\n                const manifest = this.parseManifest_({\n                    manifestString: req.responseText,\n                    url: this.src\n                });\n                this.setupInitialPlaylist(manifest);\n            });\n        }\n        srcUri() {\n            return typeof this.src === 'string' ? this.src : this.src.uri;\n        }\n        /**\n         * Given a manifest object that's either a main or media playlist, trigger the proper\n         * events and set the state of the playlist loader.\n         *\n         * If the manifest object represents a main playlist, `loadedplaylist` will be\n         * triggered to allow listeners to select a playlist. If none is selected, the loader\n         * will default to the first one in the playlists array.\n         *\n         * If the manifest object represents a media playlist, `loadedplaylist` will be\n         * triggered followed by `loadedmetadata`, as the only available playlist is loaded.\n         *\n         * In the case of a media playlist, a main playlist object wrapper with one playlist\n         * will be created so that all logic can handle playlists in the same fashion (as an\n         * assumed manifest object schema).\n         *\n         * @param {Object} manifest\n         *        The parsed manifest object\n         */\n\n        setupInitialPlaylist(manifest) {\n            this.state = 'HAVE_MAIN_MANIFEST';\n            if (manifest.playlists) {\n                this.main = manifest;\n                addPropertiesToMain(this.main, this.srcUri()); // If the initial main playlist has playlists wtih segments already resolved,\n                // then resolve URIs in advance, as they are usually done after a playlist request,\n                // which may not happen if the playlist is resolved.\n\n                manifest.playlists.forEach(playlist => {\n                    playlist.segments = getAllSegments(playlist);\n                    playlist.segments.forEach(segment => {\n                        resolveSegmentUris(segment, playlist.resolvedUri);\n                    });\n                });\n                this.trigger('loadedplaylist');\n                if (!this.request) {\n                    // no media playlist was specifically selected so start\n                    // from the first listed one\n                    this.media(this.main.playlists[0]);\n                }\n                return;\n            } // In order to support media playlists passed in as vhs-json, the case where the uri\n            // is not provided as part of the manifest should be considered, and an appropriate\n            // default used.\n\n            const uri = this.srcUri() || window.location.href;\n            this.main = mainForMedia(manifest, uri);\n            this.haveMetadata({\n                playlistObject: manifest,\n                url: uri,\n                id: this.main.playlists[0].id\n            });\n            this.trigger('loadedmetadata');\n        }\n    }\n\n    /**\n     * @file xhr.js\n     */\n    const {\n        xhr: videojsXHR\n    } = videojs;\n    const callbackWrapper = function (request, error, response, callback) {\n        const reqResponse = request.responseType === 'arraybuffer' ? request.response : request.responseText;\n        if (!error && reqResponse) {\n            request.responseTime = Date.now();\n            request.roundTripTime = request.responseTime - request.requestTime;\n            request.bytesReceived = reqResponse.byteLength || reqResponse.length;\n            if (!request.bandwidth) {\n                request.bandwidth = Math.floor(request.bytesReceived / request.roundTripTime * 8 * 1000);\n            }\n        }\n        if (response.headers) {\n            request.responseHeaders = response.headers;\n        } // videojs.xhr now uses a specific code on the error\n        // object to signal that a request has timed out instead\n        // of setting a boolean on the request object\n\n        if (error && error.code === 'ETIMEDOUT') {\n            request.timedout = true;\n        } // videojs.xhr no longer considers status codes outside of 200 and 0\n        // (for file uris) to be errors, but the old XHR did, so emulate that\n        // behavior. Status 206 may be used in response to byterange requests.\n\n        if (!error && !request.aborted && response.statusCode !== 200 && response.statusCode !== 206 && response.statusCode !== 0) {\n            error = new Error('XHR Failed with a response of: ' + (request && (reqResponse || request.responseText)));\n        }\n        callback(error, request);\n    };\n    const xhrFactory = function () {\n        const xhr = function XhrFunction(options, callback) {\n            // Add a default timeout\n            options = merge({\n                timeout: 45e3\n            }, options); // Allow an optional user-specified function to modify the option\n            // object before we construct the xhr request\n\n            const beforeRequest = XhrFunction.beforeRequest || videojs.Vhs.xhr.beforeRequest;\n            if (beforeRequest && typeof beforeRequest === 'function') {\n                const newOptions = beforeRequest(options);\n                if (newOptions) {\n                    options = newOptions;\n                }\n            } // Use the standard videojs.xhr() method unless `videojs.Vhs.xhr` has been overriden\n            // TODO: switch back to videojs.Vhs.xhr.name === 'XhrFunction' when we drop IE11\n\n            const xhrMethod = videojs.Vhs.xhr.original === true ? videojsXHR : videojs.Vhs.xhr;\n            const request = xhrMethod(options, function (error, response) {\n                return callbackWrapper(request, error, response, callback);\n            });\n            const originalAbort = request.abort;\n            request.abort = function () {\n                request.aborted = true;\n                return originalAbort.apply(request, arguments);\n            };\n            request.uri = options.uri;\n            request.requestTime = Date.now();\n            return request;\n        };\n        xhr.original = true;\n        return xhr;\n    };\n    /**\n     * Turns segment byterange into a string suitable for use in\n     * HTTP Range requests\n     *\n     * @param {Object} byterange - an object with two values defining the start and end\n     *                             of a byte-range\n     */\n\n    const byterangeStr = function (byterange) {\n        // `byterangeEnd` is one less than `offset + length` because the HTTP range\n        // header uses inclusive ranges\n        let byterangeEnd;\n        const byterangeStart = byterange.offset;\n        if (typeof byterange.offset === 'bigint' || typeof byterange.length === 'bigint') {\n            byterangeEnd = window.BigInt(byterange.offset) + window.BigInt(byterange.length) - window.BigInt(1);\n        } else {\n            byterangeEnd = byterange.offset + byterange.length - 1;\n        }\n        return 'bytes=' + byterangeStart + '-' + byterangeEnd;\n    };\n    /**\n     * Defines headers for use in the xhr request for a particular segment.\n     *\n     * @param {Object} segment - a simplified copy of the segmentInfo object\n     *                           from SegmentLoader\n     */\n\n    const segmentXhrHeaders = function (segment) {\n        const headers = {};\n        if (segment.byterange) {\n            headers.Range = byterangeStr(segment.byterange);\n        }\n        return headers;\n    };\n\n    /**\n     * @file bin-utils.js\n     */\n\n    /**\n     * convert a TimeRange to text\n     *\n     * @param {TimeRange} range the timerange to use for conversion\n     * @param {number} i the iterator on the range to convert\n     * @return {string} the range in string format\n     */\n\n    const textRange = function (range, i) {\n        return range.start(i) + '-' + range.end(i);\n    };\n    /**\n     * format a number as hex string\n     *\n     * @param {number} e The number\n     * @param {number} i the iterator\n     * @return {string} the hex formatted number as a string\n     */\n\n    const formatHexString = function (e, i) {\n        const value = e.toString(16);\n        return '00'.substring(0, 2 - value.length) + value + (i % 2 ? ' ' : '');\n    };\n    const formatAsciiString = function (e) {\n        if (e >= 0x20 && e < 0x7e) {\n            return String.fromCharCode(e);\n        }\n        return '.';\n    };\n    /**\n     * Creates an object for sending to a web worker modifying properties that are TypedArrays\n     * into a new object with seperated properties for the buffer, byteOffset, and byteLength.\n     *\n     * @param {Object} message\n     *        Object of properties and values to send to the web worker\n     * @return {Object}\n     *         Modified message with TypedArray values expanded\n     * @function createTransferableMessage\n     */\n\n    const createTransferableMessage = function (message) {\n        const transferable = {};\n        Object.keys(message).forEach(key => {\n            const value = message[key];\n            if (isArrayBufferView(value)) {\n                transferable[key] = {\n                    bytes: value.buffer,\n                    byteOffset: value.byteOffset,\n                    byteLength: value.byteLength\n                };\n            } else {\n                transferable[key] = value;\n            }\n        });\n        return transferable;\n    };\n    /**\n     * Returns a unique string identifier for a media initialization\n     * segment.\n     *\n     * @param {Object} initSegment\n     *        the init segment object.\n     *\n     * @return {string} the generated init segment id\n     */\n\n    const initSegmentId = function (initSegment) {\n        const byterange = initSegment.byterange || {\n            length: Infinity,\n            offset: 0\n        };\n        return [byterange.length, byterange.offset, initSegment.resolvedUri].join(',');\n    };\n    /**\n     * Returns a unique string identifier for a media segment key.\n     *\n     * @param {Object} key the encryption key\n     * @return {string} the unique id for the media segment key.\n     */\n\n    const segmentKeyId = function (key) {\n        return key.resolvedUri;\n    };\n    /**\n     * utils to help dump binary data to the console\n     *\n     * @param {Array|TypedArray} data\n     *        data to dump to a string\n     *\n     * @return {string} the data as a hex string.\n     */\n\n    const hexDump = data => {\n        const bytes = Array.prototype.slice.call(data);\n        const step = 16;\n        let result = '';\n        let hex;\n        let ascii;\n        for (let j = 0; j < bytes.length / step; j++) {\n            hex = bytes.slice(j * step, j * step + step).map(formatHexString).join('');\n            ascii = bytes.slice(j * step, j * step + step).map(formatAsciiString).join('');\n            result += hex + ' ' + ascii + '\\n';\n        }\n        return result;\n    };\n    const tagDump = ({\n                         bytes\n                     }) => hexDump(bytes);\n    const textRanges = ranges => {\n        let result = '';\n        let i;\n        for (i = 0; i < ranges.length; i++) {\n            result += textRange(ranges, i) + ' ';\n        }\n        return result;\n    };\n    var utils = /*#__PURE__*/Object.freeze({\n        __proto__: null,\n        createTransferableMessage: createTransferableMessage,\n        initSegmentId: initSegmentId,\n        segmentKeyId: segmentKeyId,\n        hexDump: hexDump,\n        tagDump: tagDump,\n        textRanges: textRanges\n    });\n\n    // TODO handle fmp4 case where the timing info is accurate and doesn't involve transmux\n    // 25% was arbitrarily chosen, and may need to be refined over time.\n\n    const SEGMENT_END_FUDGE_PERCENT = 0.25;\n    /**\n     * Converts a player time (any time that can be gotten/set from player.currentTime(),\n     * e.g., any time within player.seekable().start(0) to player.seekable().end(0)) to a\n     * program time (any time referencing the real world (e.g., EXT-X-PROGRAM-DATE-TIME)).\n     *\n     * The containing segment is required as the EXT-X-PROGRAM-DATE-TIME serves as an \"anchor\n     * point\" (a point where we have a mapping from program time to player time, with player\n     * time being the post transmux start of the segment).\n     *\n     * For more details, see [this doc](../../docs/program-time-from-player-time.md).\n     *\n     * @param {number} playerTime the player time\n     * @param {Object} segment the segment which contains the player time\n     * @return {Date} program time\n     */\n\n    const playerTimeToProgramTime = (playerTime, segment) => {\n        if (!segment.dateTimeObject) {\n            // Can't convert without an \"anchor point\" for the program time (i.e., a time that can\n            // be used to map the start of a segment with a real world time).\n            return null;\n        }\n        const transmuxerPrependedSeconds = segment.videoTimingInfo.transmuxerPrependedSeconds;\n        const transmuxedStart = segment.videoTimingInfo.transmuxedPresentationStart; // get the start of the content from before old content is prepended\n\n        const startOfSegment = transmuxedStart + transmuxerPrependedSeconds;\n        const offsetFromSegmentStart = playerTime - startOfSegment;\n        return new Date(segment.dateTimeObject.getTime() + offsetFromSegmentStart * 1000);\n    };\n    const originalSegmentVideoDuration = videoTimingInfo => {\n        return videoTimingInfo.transmuxedPresentationEnd - videoTimingInfo.transmuxedPresentationStart - videoTimingInfo.transmuxerPrependedSeconds;\n    };\n    /**\n     * Finds a segment that contains the time requested given as an ISO-8601 string. The\n     * returned segment might be an estimate or an accurate match.\n     *\n     * @param {string} programTime The ISO-8601 programTime to find a match for\n     * @param {Object} playlist A playlist object to search within\n     */\n\n    const findSegmentForProgramTime = (programTime, playlist) => {\n        // Assumptions:\n        //  - verifyProgramDateTimeTags has already been run\n        //  - live streams have been started\n        let dateTimeObject;\n        try {\n            dateTimeObject = new Date(programTime);\n        } catch (e) {\n            return null;\n        }\n        if (!playlist || !playlist.segments || playlist.segments.length === 0) {\n            return null;\n        }\n        let segment = playlist.segments[0];\n        if (dateTimeObject < segment.dateTimeObject) {\n            // Requested time is before stream start.\n            return null;\n        }\n        for (let i = 0; i < playlist.segments.length - 1; i++) {\n            segment = playlist.segments[i];\n            const nextSegmentStart = playlist.segments[i + 1].dateTimeObject;\n            if (dateTimeObject < nextSegmentStart) {\n                break;\n            }\n        }\n        const lastSegment = playlist.segments[playlist.segments.length - 1];\n        const lastSegmentStart = lastSegment.dateTimeObject;\n        const lastSegmentDuration = lastSegment.videoTimingInfo ? originalSegmentVideoDuration(lastSegment.videoTimingInfo) : lastSegment.duration + lastSegment.duration * SEGMENT_END_FUDGE_PERCENT;\n        const lastSegmentEnd = new Date(lastSegmentStart.getTime() + lastSegmentDuration * 1000);\n        if (dateTimeObject > lastSegmentEnd) {\n            // Beyond the end of the stream, or our best guess of the end of the stream.\n            return null;\n        }\n        if (dateTimeObject > lastSegmentStart) {\n            segment = lastSegment;\n        }\n        return {\n            segment,\n            estimatedStart: segment.videoTimingInfo ? segment.videoTimingInfo.transmuxedPresentationStart : Playlist.duration(playlist, playlist.mediaSequence + playlist.segments.indexOf(segment)),\n            // Although, given that all segments have accurate date time objects, the segment\n            // selected should be accurate, unless the video has been transmuxed at some point\n            // (determined by the presence of the videoTimingInfo object), the segment's \"player\n            // time\" (the start time in the player) can't be considered accurate.\n            type: segment.videoTimingInfo ? 'accurate' : 'estimate'\n        };\n    };\n    /**\n     * Finds a segment that contains the given player time(in seconds).\n     *\n     * @param {number} time The player time to find a match for\n     * @param {Object} playlist A playlist object to search within\n     */\n\n    const findSegmentForPlayerTime = (time, playlist) => {\n        // Assumptions:\n        // - there will always be a segment.duration\n        // - we can start from zero\n        // - segments are in time order\n        if (!playlist || !playlist.segments || playlist.segments.length === 0) {\n            return null;\n        }\n        let segmentEnd = 0;\n        let segment;\n        for (let i = 0; i < playlist.segments.length; i++) {\n            segment = playlist.segments[i]; // videoTimingInfo is set after the segment is downloaded and transmuxed, and\n            // should contain the most accurate values we have for the segment's player times.\n            //\n            // Use the accurate transmuxedPresentationEnd value if it is available, otherwise fall\n            // back to an estimate based on the manifest derived (inaccurate) segment.duration, to\n            // calculate an end value.\n\n            segmentEnd = segment.videoTimingInfo ? segment.videoTimingInfo.transmuxedPresentationEnd : segmentEnd + segment.duration;\n            if (time <= segmentEnd) {\n                break;\n            }\n        }\n        const lastSegment = playlist.segments[playlist.segments.length - 1];\n        if (lastSegment.videoTimingInfo && lastSegment.videoTimingInfo.transmuxedPresentationEnd < time) {\n            // The time requested is beyond the stream end.\n            return null;\n        }\n        if (time > segmentEnd) {\n            // The time is within or beyond the last segment.\n            //\n            // Check to see if the time is beyond a reasonable guess of the end of the stream.\n            if (time > segmentEnd + lastSegment.duration * SEGMENT_END_FUDGE_PERCENT) {\n                // Technically, because the duration value is only an estimate, the time may still\n                // exist in the last segment, however, there isn't enough information to make even\n                // a reasonable estimate.\n                return null;\n            }\n            segment = lastSegment;\n        }\n        return {\n            segment,\n            estimatedStart: segment.videoTimingInfo ? segment.videoTimingInfo.transmuxedPresentationStart : segmentEnd - segment.duration,\n            // Because videoTimingInfo is only set after transmux, it is the only way to get\n            // accurate timing values.\n            type: segment.videoTimingInfo ? 'accurate' : 'estimate'\n        };\n    };\n    /**\n     * Gives the offset of the comparisonTimestamp from the programTime timestamp in seconds.\n     * If the offset returned is positive, the programTime occurs after the\n     * comparisonTimestamp.\n     * If the offset is negative, the programTime occurs before the comparisonTimestamp.\n     *\n     * @param {string} comparisonTimeStamp An ISO-8601 timestamp to compare against\n     * @param {string} programTime The programTime as an ISO-8601 string\n     * @return {number} offset\n     */\n\n    const getOffsetFromTimestamp = (comparisonTimeStamp, programTime) => {\n        let segmentDateTime;\n        let programDateTime;\n        try {\n            segmentDateTime = new Date(comparisonTimeStamp);\n            programDateTime = new Date(programTime);\n        } catch (e) {// TODO handle error\n        }\n        const segmentTimeEpoch = segmentDateTime.getTime();\n        const programTimeEpoch = programDateTime.getTime();\n        return (programTimeEpoch - segmentTimeEpoch) / 1000;\n    };\n    /**\n     * Checks that all segments in this playlist have programDateTime tags.\n     *\n     * @param {Object} playlist A playlist object\n     */\n\n    const verifyProgramDateTimeTags = playlist => {\n        if (!playlist.segments || playlist.segments.length === 0) {\n            return false;\n        }\n        for (let i = 0; i < playlist.segments.length; i++) {\n            const segment = playlist.segments[i];\n            if (!segment.dateTimeObject) {\n                return false;\n            }\n        }\n        return true;\n    };\n    /**\n     * Returns the programTime of the media given a playlist and a playerTime.\n     * The playlist must have programDateTime tags for a programDateTime tag to be returned.\n     * If the segments containing the time requested have not been buffered yet, an estimate\n     * may be returned to the callback.\n     *\n     * @param {Object} args\n     * @param {Object} args.playlist A playlist object to search within\n     * @param {number} time A playerTime in seconds\n     * @param {Function} callback(err, programTime)\n     * @return {string} err.message A detailed error message\n     * @return {Object} programTime\n     * @return {number} programTime.mediaSeconds The streamTime in seconds\n     * @return {string} programTime.programDateTime The programTime as an ISO-8601 String\n     */\n\n    const getProgramTime = ({\n                                playlist,\n                                time = undefined,\n                                callback\n                            }) => {\n        if (!callback) {\n            throw new Error('getProgramTime: callback must be provided');\n        }\n        if (!playlist || time === undefined) {\n            return callback({\n                message: 'getProgramTime: playlist and time must be provided'\n            });\n        }\n        const matchedSegment = findSegmentForPlayerTime(time, playlist);\n        if (!matchedSegment) {\n            return callback({\n                message: 'valid programTime was not found'\n            });\n        }\n        if (matchedSegment.type === 'estimate') {\n            return callback({\n                message: 'Accurate programTime could not be determined.' + ' Please seek to e.seekTime and try again',\n                seekTime: matchedSegment.estimatedStart\n            });\n        }\n        const programTimeObject = {\n            mediaSeconds: time\n        };\n        const programTime = playerTimeToProgramTime(time, matchedSegment.segment);\n        if (programTime) {\n            programTimeObject.programDateTime = programTime.toISOString();\n        }\n        return callback(null, programTimeObject);\n    };\n    /**\n     * Seeks in the player to a time that matches the given programTime ISO-8601 string.\n     *\n     * @param {Object} args\n     * @param {string} args.programTime A programTime to seek to as an ISO-8601 String\n     * @param {Object} args.playlist A playlist to look within\n     * @param {number} args.retryCount The number of times to try for an accurate seek. Default is 2.\n     * @param {Function} args.seekTo A method to perform a seek\n     * @param {boolean} args.pauseAfterSeek Whether to end in a paused state after seeking. Default is true.\n     * @param {Object} args.tech The tech to seek on\n     * @param {Function} args.callback(err, newTime) A callback to return the new time to\n     * @return {string} err.message A detailed error message\n     * @return {number} newTime The exact time that was seeked to in seconds\n     */\n\n    const seekToProgramTime = ({\n                                   programTime,\n                                   playlist,\n                                   retryCount = 2,\n                                   seekTo,\n                                   pauseAfterSeek = true,\n                                   tech,\n                                   callback\n                               }) => {\n        if (!callback) {\n            throw new Error('seekToProgramTime: callback must be provided');\n        }\n        if (typeof programTime === 'undefined' || !playlist || !seekTo) {\n            return callback({\n                message: 'seekToProgramTime: programTime, seekTo and playlist must be provided'\n            });\n        }\n        if (!playlist.endList && !tech.hasStarted_) {\n            return callback({\n                message: 'player must be playing a live stream to start buffering'\n            });\n        }\n        if (!verifyProgramDateTimeTags(playlist)) {\n            return callback({\n                message: 'programDateTime tags must be provided in the manifest ' + playlist.resolvedUri\n            });\n        }\n        const matchedSegment = findSegmentForProgramTime(programTime, playlist); // no match\n\n        if (!matchedSegment) {\n            return callback({\n                message: `${programTime} was not found in the stream`\n            });\n        }\n        const segment = matchedSegment.segment;\n        const mediaOffset = getOffsetFromTimestamp(segment.dateTimeObject, programTime);\n        if (matchedSegment.type === 'estimate') {\n            // we've run out of retries\n            if (retryCount === 0) {\n                return callback({\n                    message: `${programTime} is not buffered yet. Try again`\n                });\n            }\n            seekTo(matchedSegment.estimatedStart + mediaOffset);\n            tech.one('seeked', () => {\n                seekToProgramTime({\n                    programTime,\n                    playlist,\n                    retryCount: retryCount - 1,\n                    seekTo,\n                    pauseAfterSeek,\n                    tech,\n                    callback\n                });\n            });\n            return;\n        } // Since the segment.start value is determined from the buffered end or ending time\n        // of the prior segment, the seekToTime doesn't need to account for any transmuxer\n        // modifications.\n\n        const seekToTime = segment.start + mediaOffset;\n        const seekedCallback = () => {\n            return callback(null, tech.currentTime());\n        }; // listen for seeked event\n\n        tech.one('seeked', seekedCallback); // pause before seeking as video.js will restore this state\n\n        if (pauseAfterSeek) {\n            tech.pause();\n        }\n        seekTo(seekToTime);\n    };\n\n    // which will only happen if the request is complete.\n\n    const callbackOnCompleted = (request, cb) => {\n        if (request.readyState === 4) {\n            return cb();\n        }\n        return;\n    };\n    const containerRequest = (uri, xhr, cb) => {\n        let bytes = [];\n        let id3Offset;\n        let finished = false;\n        const endRequestAndCallback = function (err, req, type, _bytes) {\n            req.abort();\n            finished = true;\n            return cb(err, req, type, _bytes);\n        };\n        const progressListener = function (error, request) {\n            if (finished) {\n                return;\n            }\n            if (error) {\n                return endRequestAndCallback(error, request, '', bytes);\n            } // grap the new part of content that was just downloaded\n\n            const newPart = request.responseText.substring(bytes && bytes.byteLength || 0, request.responseText.length); // add that onto bytes\n\n            bytes = concatTypedArrays(bytes, stringToBytes(newPart, true));\n            id3Offset = id3Offset || getId3Offset(bytes); // we need at least 10 bytes to determine a type\n            // or we need at least two bytes after an id3Offset\n\n            if (bytes.length < 10 || id3Offset && bytes.length < id3Offset + 2) {\n                return callbackOnCompleted(request, () => endRequestAndCallback(error, request, '', bytes));\n            }\n            const type = detectContainerForBytes(bytes); // if this looks like a ts segment but we don't have enough data\n            // to see the second sync byte, wait until we have enough data\n            // before declaring it ts\n\n            if (type === 'ts' && bytes.length < 188) {\n                return callbackOnCompleted(request, () => endRequestAndCallback(error, request, '', bytes));\n            } // this may be an unsynced ts segment\n            // wait for 376 bytes before detecting no container\n\n            if (!type && bytes.length < 376) {\n                return callbackOnCompleted(request, () => endRequestAndCallback(error, request, '', bytes));\n            }\n            return endRequestAndCallback(null, request, type, bytes);\n        };\n        const options = {\n            uri,\n            beforeSend(request) {\n                // this forces the browser to pass the bytes to us unprocessed\n                request.overrideMimeType('text/plain; charset=x-user-defined');\n                request.addEventListener('progress', function ({\n                                                                   total,\n                                                                   loaded\n                                                               }) {\n                    return callbackWrapper(request, null, {\n                        statusCode: request.status\n                    }, progressListener);\n                });\n            }\n        };\n        const request = xhr(options, function (error, response) {\n            return callbackWrapper(request, error, response, progressListener);\n        });\n        return request;\n    };\n    const {\n        EventTarget\n    } = videojs;\n    const dashPlaylistUnchanged = function (a, b) {\n        if (!isPlaylistUnchanged(a, b)) {\n            return false;\n        } // for dash the above check will often return true in scenarios where\n        // the playlist actually has changed because mediaSequence isn't a\n        // dash thing, and we often set it to 1. So if the playlists have the same amount\n        // of segments we return true.\n        // So for dash we need to make sure that the underlying segments are different.\n        // if sidx changed then the playlists are different.\n\n        if (a.sidx && b.sidx && (a.sidx.offset !== b.sidx.offset || a.sidx.length !== b.sidx.length)) {\n            return false;\n        } else if (!a.sidx && b.sidx || a.sidx && !b.sidx) {\n            return false;\n        } // one or the other does not have segments\n        // there was a change.\n\n        if (a.segments && !b.segments || !a.segments && b.segments) {\n            return false;\n        } // neither has segments nothing changed\n\n        if (!a.segments && !b.segments) {\n            return true;\n        } // check segments themselves\n\n        for (let i = 0; i < a.segments.length; i++) {\n            const aSegment = a.segments[i];\n            const bSegment = b.segments[i]; // if uris are different between segments there was a change\n\n            if (aSegment.uri !== bSegment.uri) {\n                return false;\n            } // neither segment has a byterange, there will be no byterange change.\n\n            if (!aSegment.byterange && !bSegment.byterange) {\n                continue;\n            }\n            const aByterange = aSegment.byterange;\n            const bByterange = bSegment.byterange; // if byterange only exists on one of the segments, there was a change.\n\n            if (aByterange && !bByterange || !aByterange && bByterange) {\n                return false;\n            } // if both segments have byterange with different offsets, there was a change.\n\n            if (aByterange.offset !== bByterange.offset || aByterange.length !== bByterange.length) {\n                return false;\n            }\n        } // if everything was the same with segments, this is the same playlist.\n\n        return true;\n    };\n    /**\n     * Use the representation IDs from the mpd object to create groupIDs, the NAME is set to mandatory representation\n     * ID in the parser. This allows for continuous playout across periods with the same representation IDs\n     * (continuous periods as defined in DASH-IF 3.2.12). This is assumed in the mpd-parser as well. If we want to support\n     * periods without continuous playback this function may need modification as well as the parser.\n     */\n\n    const dashGroupId = (type, group, label, playlist) => {\n        // If the manifest somehow does not have an ID (non-dash compliant), use the label.\n        const playlistId = playlist.attributes.NAME || label;\n        return `placeholder-uri-${type}-${group}-${playlistId}`;\n    };\n    /**\n     * Parses the main XML string and updates playlist URI references.\n     *\n     * @param {Object} config\n     *        Object of arguments\n     * @param {string} config.mainXml\n     *        The mpd XML\n     * @param {string} config.srcUrl\n     *        The mpd URL\n     * @param {Date} config.clientOffset\n     *         A time difference between server and client\n     * @param {Object} config.sidxMapping\n     *        SIDX mappings for moof/mdat URIs and byte ranges\n     * @return {Object}\n     *         The parsed mpd manifest object\n     */\n\n    const parseMainXml = ({\n                              mainXml,\n                              srcUrl,\n                              clientOffset,\n                              sidxMapping,\n                              previousManifest\n                          }) => {\n        const manifest = parse(mainXml, {\n            manifestUri: srcUrl,\n            clientOffset,\n            sidxMapping,\n            previousManifest\n        });\n        addPropertiesToMain(manifest, srcUrl, dashGroupId);\n        return manifest;\n    };\n    /**\n     * Removes any mediaGroup labels that no longer exist in the newMain\n     *\n     * @param {Object} update\n     *         The previous mpd object being updated\n     * @param {Object} newMain\n     *         The new mpd object\n     */\n\n    const removeOldMediaGroupLabels = (update, newMain) => {\n        forEachMediaGroup(update, (properties, type, group, label) => {\n            if (!(label in newMain.mediaGroups[type][group])) {\n                delete update.mediaGroups[type][group][label];\n            }\n        });\n    };\n    /**\n     * Returns a new main manifest that is the result of merging an updated main manifest\n     * into the original version.\n     *\n     * @param {Object} oldMain\n     *        The old parsed mpd object\n     * @param {Object} newMain\n     *        The updated parsed mpd object\n     * @return {Object}\n     *         A new object representing the original main manifest with the updated media\n     *         playlists merged in\n     */\n\n    const updateMain = (oldMain, newMain, sidxMapping) => {\n        let noChanges = true;\n        let update = merge(oldMain, {\n            // These are top level properties that can be updated\n            duration: newMain.duration,\n            minimumUpdatePeriod: newMain.minimumUpdatePeriod,\n            timelineStarts: newMain.timelineStarts\n        }); // First update the playlists in playlist list\n\n        for (let i = 0; i < newMain.playlists.length; i++) {\n            const playlist = newMain.playlists[i];\n            if (playlist.sidx) {\n                const sidxKey = generateSidxKey(playlist.sidx); // add sidx segments to the playlist if we have all the sidx info already\n\n                if (sidxMapping && sidxMapping[sidxKey] && sidxMapping[sidxKey].sidx) {\n                    addSidxSegmentsToPlaylist$1(playlist, sidxMapping[sidxKey].sidx, playlist.sidx.resolvedUri);\n                }\n            }\n            const playlistUpdate = updateMain$1(update, playlist, dashPlaylistUnchanged);\n            if (playlistUpdate) {\n                update = playlistUpdate;\n                noChanges = false;\n            }\n        } // Then update media group playlists\n\n        forEachMediaGroup(newMain, (properties, type, group, label) => {\n            if (properties.playlists && properties.playlists.length) {\n                const id = properties.playlists[0].id;\n                const playlistUpdate = updateMain$1(update, properties.playlists[0], dashPlaylistUnchanged);\n                if (playlistUpdate) {\n                    update = playlistUpdate; // add new mediaGroup label if it doesn't exist and assign the new mediaGroup.\n\n                    if (!(label in update.mediaGroups[type][group])) {\n                        update.mediaGroups[type][group][label] = properties;\n                    } // update the playlist reference within media groups\n\n                    update.mediaGroups[type][group][label].playlists[0] = update.playlists[id];\n                    noChanges = false;\n                }\n            }\n        }); // remove mediaGroup labels and references that no longer exist in the newMain\n\n        removeOldMediaGroupLabels(update, newMain);\n        if (newMain.minimumUpdatePeriod !== oldMain.minimumUpdatePeriod) {\n            noChanges = false;\n        }\n        if (noChanges) {\n            return null;\n        }\n        return update;\n    }; // SIDX should be equivalent if the URI and byteranges of the SIDX match.\n    // If the SIDXs have maps, the two maps should match,\n    // both `a` and `b` missing SIDXs is considered matching.\n    // If `a` or `b` but not both have a map, they aren't matching.\n\n    const equivalentSidx = (a, b) => {\n        const neitherMap = Boolean(!a.map && !b.map);\n        const equivalentMap = neitherMap || Boolean(a.map && b.map && a.map.byterange.offset === b.map.byterange.offset && a.map.byterange.length === b.map.byterange.length);\n        return equivalentMap && a.uri === b.uri && a.byterange.offset === b.byterange.offset && a.byterange.length === b.byterange.length;\n    }; // exported for testing\n\n    const compareSidxEntry = (playlists, oldSidxMapping) => {\n        const newSidxMapping = {};\n        for (const id in playlists) {\n            const playlist = playlists[id];\n            const currentSidxInfo = playlist.sidx;\n            if (currentSidxInfo) {\n                const key = generateSidxKey(currentSidxInfo);\n                if (!oldSidxMapping[key]) {\n                    break;\n                }\n                const savedSidxInfo = oldSidxMapping[key].sidxInfo;\n                if (equivalentSidx(savedSidxInfo, currentSidxInfo)) {\n                    newSidxMapping[key] = oldSidxMapping[key];\n                }\n            }\n        }\n        return newSidxMapping;\n    };\n    /**\n     *  A function that filters out changed items as they need to be requested separately.\n     *\n     *  The method is exported for testing\n     *\n     *  @param {Object} main the parsed mpd XML returned via mpd-parser\n     *  @param {Object} oldSidxMapping the SIDX to compare against\n     */\n\n    const filterChangedSidxMappings = (main, oldSidxMapping) => {\n        const videoSidx = compareSidxEntry(main.playlists, oldSidxMapping);\n        let mediaGroupSidx = videoSidx;\n        forEachMediaGroup(main, (properties, mediaType, groupKey, labelKey) => {\n            if (properties.playlists && properties.playlists.length) {\n                const playlists = properties.playlists;\n                mediaGroupSidx = merge(mediaGroupSidx, compareSidxEntry(playlists, oldSidxMapping));\n            }\n        });\n        return mediaGroupSidx;\n    };\n    class DashPlaylistLoader extends EventTarget {\n        // DashPlaylistLoader must accept either a src url or a playlist because subsequent\n        // playlist loader setups from media groups will expect to be able to pass a playlist\n        // (since there aren't external URLs to media playlists with DASH)\n        constructor(srcUrlOrPlaylist, vhs, options = {}, mainPlaylistLoader) {\n            super();\n            this.mainPlaylistLoader_ = mainPlaylistLoader || this;\n            if (!mainPlaylistLoader) {\n                this.isMain_ = true;\n            }\n            const {\n                withCredentials = false\n            } = options;\n            this.vhs_ = vhs;\n            this.withCredentials = withCredentials;\n            if (!srcUrlOrPlaylist) {\n                throw new Error('A non-empty playlist URL or object is required');\n            } // event naming?\n\n            this.on('minimumUpdatePeriod', () => {\n                this.refreshXml_();\n            }); // live playlist staleness timeout\n\n            this.on('mediaupdatetimeout', () => {\n                this.refreshMedia_(this.media().id);\n            });\n            this.state = 'HAVE_NOTHING';\n            this.loadedPlaylists_ = {};\n            this.logger_ = logger('DashPlaylistLoader'); // initialize the loader state\n            // The mainPlaylistLoader will be created with a string\n\n            if (this.isMain_) {\n                this.mainPlaylistLoader_.srcUrl = srcUrlOrPlaylist; // TODO: reset sidxMapping between period changes\n                // once multi-period is refactored\n\n                this.mainPlaylistLoader_.sidxMapping_ = {};\n            } else {\n                this.childPlaylist_ = srcUrlOrPlaylist;\n            }\n        }\n        requestErrored_(err, request, startingState) {\n            // disposed\n            if (!this.request) {\n                return true;\n            } // pending request is cleared\n\n            this.request = null;\n            if (err) {\n                // use the provided error object or create one\n                // based on the request/response\n                this.error = typeof err === 'object' && !(err instanceof Error) ? err : {\n                    status: request.status,\n                    message: 'DASH request error at URL: ' + request.uri,\n                    response: request.response,\n                    // MEDIA_ERR_NETWORK\n                    code: 2\n                };\n                if (startingState) {\n                    this.state = startingState;\n                }\n                this.trigger('error');\n                return true;\n            }\n        }\n        /**\n         * Verify that the container of the sidx segment can be parsed\n         * and if it can, get and parse that segment.\n         */\n\n        addSidxSegments_(playlist, startingState, cb) {\n            const sidxKey = playlist.sidx && generateSidxKey(playlist.sidx); // playlist lacks sidx or sidx segments were added to this playlist already.\n\n            if (!playlist.sidx || !sidxKey || this.mainPlaylistLoader_.sidxMapping_[sidxKey]) {\n                // keep this function async\n                this.mediaRequest_ = window.setTimeout(() => cb(false), 0);\n                return;\n            } // resolve the segment URL relative to the playlist\n\n            const uri = resolveManifestRedirect(playlist.sidx.resolvedUri);\n            const fin = (err, request) => {\n                if (this.requestErrored_(err, request, startingState)) {\n                    return;\n                }\n                const sidxMapping = this.mainPlaylistLoader_.sidxMapping_;\n                let sidx;\n                try {\n                    sidx = parseSidx_1(toUint8(request.response).subarray(8));\n                } catch (e) {\n                    // sidx parsing failed.\n                    this.requestErrored_(e, request, startingState);\n                    return;\n                }\n                sidxMapping[sidxKey] = {\n                    sidxInfo: playlist.sidx,\n                    sidx\n                };\n                addSidxSegmentsToPlaylist$1(playlist, sidx, playlist.sidx.resolvedUri);\n                return cb(true);\n            };\n            this.request = containerRequest(uri, this.vhs_.xhr, (err, request, container, bytes) => {\n                if (err) {\n                    return fin(err, request);\n                }\n                if (!container || container !== 'mp4') {\n                    return fin({\n                        status: request.status,\n                        message: `Unsupported ${container || 'unknown'} container type for sidx segment at URL: ${uri}`,\n                        // response is just bytes in this case\n                        // but we really don't want to return that.\n                        response: '',\n                        playlist,\n                        internal: true,\n                        playlistExclusionDuration: Infinity,\n                        // MEDIA_ERR_NETWORK\n                        code: 2\n                    }, request);\n                } // if we already downloaded the sidx bytes in the container request, use them\n\n                const {\n                    offset,\n                    length\n                } = playlist.sidx.byterange;\n                if (bytes.length >= length + offset) {\n                    return fin(err, {\n                        response: bytes.subarray(offset, offset + length),\n                        status: request.status,\n                        uri: request.uri\n                    });\n                } // otherwise request sidx bytes\n\n                this.request = this.vhs_.xhr({\n                    uri,\n                    responseType: 'arraybuffer',\n                    headers: segmentXhrHeaders({\n                        byterange: playlist.sidx.byterange\n                    })\n                }, fin);\n            });\n        }\n        dispose() {\n            this.trigger('dispose');\n            this.stopRequest();\n            this.loadedPlaylists_ = {};\n            window.clearTimeout(this.minimumUpdatePeriodTimeout_);\n            window.clearTimeout(this.mediaRequest_);\n            window.clearTimeout(this.mediaUpdateTimeout);\n            this.mediaUpdateTimeout = null;\n            this.mediaRequest_ = null;\n            this.minimumUpdatePeriodTimeout_ = null;\n            if (this.mainPlaylistLoader_.createMupOnMedia_) {\n                this.off('loadedmetadata', this.mainPlaylistLoader_.createMupOnMedia_);\n                this.mainPlaylistLoader_.createMupOnMedia_ = null;\n            }\n            this.off();\n        }\n        hasPendingRequest() {\n            return this.request || this.mediaRequest_;\n        }\n        stopRequest() {\n            if (this.request) {\n                const oldRequest = this.request;\n                this.request = null;\n                oldRequest.onreadystatechange = null;\n                oldRequest.abort();\n            }\n        }\n        media(playlist) {\n            // getter\n            if (!playlist) {\n                return this.media_;\n            } // setter\n\n            if (this.state === 'HAVE_NOTHING') {\n                throw new Error('Cannot switch media playlist from ' + this.state);\n            }\n            const startingState = this.state; // find the playlist object if the target playlist has been specified by URI\n\n            if (typeof playlist === 'string') {\n                if (!this.mainPlaylistLoader_.main.playlists[playlist]) {\n                    throw new Error('Unknown playlist URI: ' + playlist);\n                }\n                playlist = this.mainPlaylistLoader_.main.playlists[playlist];\n            }\n            const mediaChange = !this.media_ || playlist.id !== this.media_.id; // switch to previously loaded playlists immediately\n\n            if (mediaChange && this.loadedPlaylists_[playlist.id] && this.loadedPlaylists_[playlist.id].endList) {\n                this.state = 'HAVE_METADATA';\n                this.media_ = playlist; // trigger media change if the active media has been updated\n\n                if (mediaChange) {\n                    this.trigger('mediachanging');\n                    this.trigger('mediachange');\n                }\n                return;\n            } // switching to the active playlist is a no-op\n\n            if (!mediaChange) {\n                return;\n            } // switching from an already loaded playlist\n\n            if (this.media_) {\n                this.trigger('mediachanging');\n            }\n            this.addSidxSegments_(playlist, startingState, sidxChanged => {\n                // everything is ready just continue to haveMetadata\n                this.haveMetadata({\n                    startingState,\n                    playlist\n                });\n            });\n        }\n        haveMetadata({\n                         startingState,\n                         playlist\n                     }) {\n            this.state = 'HAVE_METADATA';\n            this.loadedPlaylists_[playlist.id] = playlist;\n            this.mediaRequest_ = null; // This will trigger loadedplaylist\n\n            this.refreshMedia_(playlist.id); // fire loadedmetadata the first time a media playlist is loaded\n            // to resolve setup of media groups\n\n            if (startingState === 'HAVE_MAIN_MANIFEST') {\n                this.trigger('loadedmetadata');\n            } else {\n                // trigger media change if the active media has been updated\n                this.trigger('mediachange');\n            }\n        }\n        pause() {\n            if (this.mainPlaylistLoader_.createMupOnMedia_) {\n                this.off('loadedmetadata', this.mainPlaylistLoader_.createMupOnMedia_);\n                this.mainPlaylistLoader_.createMupOnMedia_ = null;\n            }\n            this.stopRequest();\n            window.clearTimeout(this.mediaUpdateTimeout);\n            this.mediaUpdateTimeout = null;\n            if (this.isMain_) {\n                window.clearTimeout(this.mainPlaylistLoader_.minimumUpdatePeriodTimeout_);\n                this.mainPlaylistLoader_.minimumUpdatePeriodTimeout_ = null;\n            }\n            if (this.state === 'HAVE_NOTHING') {\n                // If we pause the loader before any data has been retrieved, its as if we never\n                // started, so reset to an unstarted state.\n                this.started = false;\n            }\n        }\n        load(isFinalRendition) {\n            window.clearTimeout(this.mediaUpdateTimeout);\n            this.mediaUpdateTimeout = null;\n            const media = this.media();\n            if (isFinalRendition) {\n                const delay = media ? media.targetDuration / 2 * 1000 : 5 * 1000;\n                this.mediaUpdateTimeout = window.setTimeout(() => this.load(), delay);\n                return;\n            } // because the playlists are internal to the manifest, load should either load the\n            // main manifest, or do nothing but trigger an event\n\n            if (!this.started) {\n                this.start();\n                return;\n            }\n            if (media && !media.endList) {\n                // Check to see if this is the main loader and the MUP was cleared (this happens\n                // when the loader was paused). `media` should be set at this point since one is always\n                // set during `start()`.\n                if (this.isMain_ && !this.minimumUpdatePeriodTimeout_) {\n                    // Trigger minimumUpdatePeriod to refresh the main manifest\n                    this.trigger('minimumUpdatePeriod'); // Since there was no prior minimumUpdatePeriodTimeout it should be recreated\n\n                    this.updateMinimumUpdatePeriodTimeout_();\n                }\n                this.trigger('mediaupdatetimeout');\n            } else {\n                this.trigger('loadedplaylist');\n            }\n        }\n        start() {\n            this.started = true; // We don't need to request the main manifest again\n            // Call this asynchronously to match the xhr request behavior below\n\n            if (!this.isMain_) {\n                this.mediaRequest_ = window.setTimeout(() => this.haveMain_(), 0);\n                return;\n            }\n            this.requestMain_((req, mainChanged) => {\n                this.haveMain_();\n                if (!this.hasPendingRequest() && !this.media_) {\n                    this.media(this.mainPlaylistLoader_.main.playlists[0]);\n                }\n            });\n        }\n        requestMain_(cb) {\n            this.request = this.vhs_.xhr({\n                uri: this.mainPlaylistLoader_.srcUrl,\n                withCredentials: this.withCredentials\n            }, (error, req) => {\n                if (this.requestErrored_(error, req)) {\n                    if (this.state === 'HAVE_NOTHING') {\n                        this.started = false;\n                    }\n                    return;\n                }\n                const mainChanged = req.responseText !== this.mainPlaylistLoader_.mainXml_;\n                this.mainPlaylistLoader_.mainXml_ = req.responseText;\n                if (req.responseHeaders && req.responseHeaders.date) {\n                    this.mainLoaded_ = Date.parse(req.responseHeaders.date);\n                } else {\n                    this.mainLoaded_ = Date.now();\n                }\n                this.mainPlaylistLoader_.srcUrl = resolveManifestRedirect(this.mainPlaylistLoader_.srcUrl, req);\n                if (mainChanged) {\n                    this.handleMain_();\n                    this.syncClientServerClock_(() => {\n                        return cb(req, mainChanged);\n                    });\n                    return;\n                }\n                return cb(req, mainChanged);\n            });\n        }\n        /**\n         * Parses the main xml for UTCTiming node to sync the client clock to the server\n         * clock. If the UTCTiming node requires a HEAD or GET request, that request is made.\n         *\n         * @param {Function} done\n         *        Function to call when clock sync has completed\n         */\n\n        syncClientServerClock_(done) {\n            const utcTiming = parseUTCTiming(this.mainPlaylistLoader_.mainXml_); // No UTCTiming element found in the mpd. Use Date header from mpd request as the\n            // server clock\n\n            if (utcTiming === null) {\n                this.mainPlaylistLoader_.clientOffset_ = this.mainLoaded_ - Date.now();\n                return done();\n            }\n            if (utcTiming.method === 'DIRECT') {\n                this.mainPlaylistLoader_.clientOffset_ = utcTiming.value - Date.now();\n                return done();\n            }\n            this.request = this.vhs_.xhr({\n                uri: resolveUrl(this.mainPlaylistLoader_.srcUrl, utcTiming.value),\n                method: utcTiming.method,\n                withCredentials: this.withCredentials\n            }, (error, req) => {\n                // disposed\n                if (!this.request) {\n                    return;\n                }\n                if (error) {\n                    // sync request failed, fall back to using date header from mpd\n                    // TODO: log warning\n                    this.mainPlaylistLoader_.clientOffset_ = this.mainLoaded_ - Date.now();\n                    return done();\n                }\n                let serverTime;\n                if (utcTiming.method === 'HEAD') {\n                    if (!req.responseHeaders || !req.responseHeaders.date) {\n                        // expected date header not preset, fall back to using date header from mpd\n                        // TODO: log warning\n                        serverTime = this.mainLoaded_;\n                    } else {\n                        serverTime = Date.parse(req.responseHeaders.date);\n                    }\n                } else {\n                    serverTime = Date.parse(req.responseText);\n                }\n                this.mainPlaylistLoader_.clientOffset_ = serverTime - Date.now();\n                done();\n            });\n        }\n        haveMain_() {\n            this.state = 'HAVE_MAIN_MANIFEST';\n            if (this.isMain_) {\n                // We have the main playlist at this point, so\n                // trigger this to allow PlaylistController\n                // to make an initial playlist selection\n                this.trigger('loadedplaylist');\n            } else if (!this.media_) {\n                // no media playlist was specifically selected so select\n                // the one the child playlist loader was created with\n                this.media(this.childPlaylist_);\n            }\n        }\n        handleMain_() {\n            // clear media request\n            this.mediaRequest_ = null;\n            const oldMain = this.mainPlaylistLoader_.main;\n            let newMain = parseMainXml({\n                mainXml: this.mainPlaylistLoader_.mainXml_,\n                srcUrl: this.mainPlaylistLoader_.srcUrl,\n                clientOffset: this.mainPlaylistLoader_.clientOffset_,\n                sidxMapping: this.mainPlaylistLoader_.sidxMapping_,\n                previousManifest: oldMain\n            }); // if we have an old main to compare the new main against\n\n            if (oldMain) {\n                newMain = updateMain(oldMain, newMain, this.mainPlaylistLoader_.sidxMapping_);\n            } // only update main if we have a new main\n\n            this.mainPlaylistLoader_.main = newMain ? newMain : oldMain;\n            const location = this.mainPlaylistLoader_.main.locations && this.mainPlaylistLoader_.main.locations[0];\n            if (location && location !== this.mainPlaylistLoader_.srcUrl) {\n                this.mainPlaylistLoader_.srcUrl = location;\n            }\n            if (!oldMain || newMain && newMain.minimumUpdatePeriod !== oldMain.minimumUpdatePeriod) {\n                this.updateMinimumUpdatePeriodTimeout_();\n            }\n            return Boolean(newMain);\n        }\n        updateMinimumUpdatePeriodTimeout_() {\n            const mpl = this.mainPlaylistLoader_; // cancel any pending creation of mup on media\n            // a new one will be added if needed.\n\n            if (mpl.createMupOnMedia_) {\n                mpl.off('loadedmetadata', mpl.createMupOnMedia_);\n                mpl.createMupOnMedia_ = null;\n            } // clear any pending timeouts\n\n            if (mpl.minimumUpdatePeriodTimeout_) {\n                window.clearTimeout(mpl.minimumUpdatePeriodTimeout_);\n                mpl.minimumUpdatePeriodTimeout_ = null;\n            }\n            let mup = mpl.main && mpl.main.minimumUpdatePeriod; // If the minimumUpdatePeriod has a value of 0, that indicates that the current\n            // MPD has no future validity, so a new one will need to be acquired when new\n            // media segments are to be made available. Thus, we use the target duration\n            // in this case\n\n            if (mup === 0) {\n                if (mpl.media()) {\n                    mup = mpl.media().targetDuration * 1000;\n                } else {\n                    mpl.createMupOnMedia_ = mpl.updateMinimumUpdatePeriodTimeout_;\n                    mpl.one('loadedmetadata', mpl.createMupOnMedia_);\n                }\n            } // if minimumUpdatePeriod is invalid or <= zero, which\n            // can happen when a live video becomes VOD. skip timeout\n            // creation.\n\n            if (typeof mup !== 'number' || mup <= 0) {\n                if (mup < 0) {\n                    this.logger_(`found invalid minimumUpdatePeriod of ${mup}, not setting a timeout`);\n                }\n                return;\n            }\n            this.createMUPTimeout_(mup);\n        }\n        createMUPTimeout_(mup) {\n            const mpl = this.mainPlaylistLoader_;\n            mpl.minimumUpdatePeriodTimeout_ = window.setTimeout(() => {\n                mpl.minimumUpdatePeriodTimeout_ = null;\n                mpl.trigger('minimumUpdatePeriod');\n                mpl.createMUPTimeout_(mup);\n            }, mup);\n        }\n        /**\n         * Sends request to refresh the main xml and updates the parsed main manifest\n         */\n\n        refreshXml_() {\n            this.requestMain_((req, mainChanged) => {\n                if (!mainChanged) {\n                    return;\n                }\n                if (this.media_) {\n                    this.media_ = this.mainPlaylistLoader_.main.playlists[this.media_.id];\n                } // This will filter out updated sidx info from the mapping\n\n                this.mainPlaylistLoader_.sidxMapping_ = filterChangedSidxMappings(this.mainPlaylistLoader_.main, this.mainPlaylistLoader_.sidxMapping_);\n                this.addSidxSegments_(this.media(), this.state, sidxChanged => {\n                    // TODO: do we need to reload the current playlist?\n                    this.refreshMedia_(this.media().id);\n                });\n            });\n        }\n        /**\n         * Refreshes the media playlist by re-parsing the main xml and updating playlist\n         * references. If this is an alternate loader, the updated parsed manifest is retrieved\n         * from the main loader.\n         */\n\n        refreshMedia_(mediaID) {\n            if (!mediaID) {\n                throw new Error('refreshMedia_ must take a media id');\n            } // for main we have to reparse the main xml\n            // to re-create segments based on current timing values\n            // which may change media. We only skip updating the main manifest\n            // if this is the first time this.media_ is being set.\n            // as main was just parsed in that case.\n\n            if (this.media_ && this.isMain_) {\n                this.handleMain_();\n            }\n            const playlists = this.mainPlaylistLoader_.main.playlists;\n            const mediaChanged = !this.media_ || this.media_ !== playlists[mediaID];\n            if (mediaChanged) {\n                this.media_ = playlists[mediaID];\n            } else {\n                this.trigger('playlistunchanged');\n            }\n            if (!this.mediaUpdateTimeout) {\n                const createMediaUpdateTimeout = () => {\n                    if (this.media().endList) {\n                        return;\n                    }\n                    this.mediaUpdateTimeout = window.setTimeout(() => {\n                        this.trigger('mediaupdatetimeout');\n                        createMediaUpdateTimeout();\n                    }, refreshDelay(this.media(), Boolean(mediaChanged)));\n                };\n                createMediaUpdateTimeout();\n            }\n            this.trigger('loadedplaylist');\n        }\n    }\n    var Config = {\n        GOAL_BUFFER_LENGTH: 30,\n        MAX_GOAL_BUFFER_LENGTH: 60,\n        BACK_BUFFER_LENGTH: 30,\n        GOAL_BUFFER_LENGTH_RATE: 1,\n        // 0.5 MB/s\n        INITIAL_BANDWIDTH: 4194304,\n        // A fudge factor to apply to advertised playlist bitrates to account for\n        // temporary flucations in client bandwidth\n        BANDWIDTH_VARIANCE: 1.2,\n        // How much of the buffer must be filled before we consider upswitching\n        BUFFER_LOW_WATER_LINE: 0,\n        MAX_BUFFER_LOW_WATER_LINE: 30,\n        // TODO: Remove this when experimentalBufferBasedABR is removed\n        EXPERIMENTAL_MAX_BUFFER_LOW_WATER_LINE: 16,\n        BUFFER_LOW_WATER_LINE_RATE: 1,\n        // If the buffer is greater than the high water line, we won't switch down\n        BUFFER_HIGH_WATER_LINE: 30\n    };\n    const stringToArrayBuffer = string => {\n        const view = new Uint8Array(new ArrayBuffer(string.length));\n        for (let i = 0; i < string.length; i++) {\n            view[i] = string.charCodeAt(i);\n        }\n        return view.buffer;\n    };\n\n    /* global Blob, BlobBuilder, Worker */\n    // unify worker interface\n    const browserWorkerPolyFill = function (workerObj) {\n        // node only supports on/off\n        workerObj.on = workerObj.addEventListener;\n        workerObj.off = workerObj.removeEventListener;\n        return workerObj;\n    };\n    const createObjectURL = function (str) {\n        try {\n            return URL.createObjectURL(new Blob([str], {\n                type: 'application/javascript'\n            }));\n        } catch (e) {\n            const blob = new BlobBuilder();\n            blob.append(str);\n            return URL.createObjectURL(blob.getBlob());\n        }\n    };\n    const factory = function (code) {\n        return function () {\n            const objectUrl = createObjectURL(code);\n            const worker = browserWorkerPolyFill(new Worker(objectUrl));\n            worker.objURL = objectUrl;\n            const terminate = worker.terminate;\n            worker.on = worker.addEventListener;\n            worker.off = worker.removeEventListener;\n            worker.terminate = function () {\n                URL.revokeObjectURL(objectUrl);\n                return terminate.call(this);\n            };\n            return worker;\n        };\n    };\n    const transform = function (code) {\n        return `var browserWorkerPolyFill = ${browserWorkerPolyFill.toString()};\\n` + 'browserWorkerPolyFill(self);\\n' + code;\n    };\n    const getWorkerString = function (fn) {\n        return fn.toString().replace(/^function.+?{/, '').slice(0, -1);\n    };\n\n    /* rollup-plugin-worker-factory start for worker!/Users/ddashkevich/projects/http-streaming/src/transmuxer-worker.js */\n    const workerCode$1 = transform(getWorkerString(function () {\n        var commonjsGlobal = typeof globalThis !== 'undefined' ? globalThis : typeof window !== 'undefined' ? window : typeof global !== 'undefined' ? global : typeof self !== 'undefined' ? self : {};\n        /**\n         * mux.js\n         *\n         * Copyright (c) Brightcove\n         * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE\n         *\n         * A lightweight readable stream implemention that handles event dispatching.\n         * Objects that inherit from streams should call init in their constructors.\n         */\n\n        var Stream$8 = function () {\n            this.init = function () {\n                var listeners = {};\n                /**\n                 * Add a listener for a specified event type.\n                 * @param type {string} the event name\n                 * @param listener {function} the callback to be invoked when an event of\n                 * the specified type occurs\n                 */\n\n                this.on = function (type, listener) {\n                    if (!listeners[type]) {\n                        listeners[type] = [];\n                    }\n                    listeners[type] = listeners[type].concat(listener);\n                };\n                /**\n                 * Remove a listener for a specified event type.\n                 * @param type {string} the event name\n                 * @param listener {function} a function previously registered for this\n                 * type of event through `on`\n                 */\n\n                this.off = function (type, listener) {\n                    var index;\n                    if (!listeners[type]) {\n                        return false;\n                    }\n                    index = listeners[type].indexOf(listener);\n                    listeners[type] = listeners[type].slice();\n                    listeners[type].splice(index, 1);\n                    return index > -1;\n                };\n                /**\n                 * Trigger an event of the specified type on this stream. Any additional\n                 * arguments to this function are passed as parameters to event listeners.\n                 * @param type {string} the event name\n                 */\n\n                this.trigger = function (type) {\n                    var callbacks, i, length, args;\n                    callbacks = listeners[type];\n                    if (!callbacks) {\n                        return;\n                    } // Slicing the arguments on every invocation of this method\n                    // can add a significant amount of overhead. Avoid the\n                    // intermediate object creation for the common case of a\n                    // single callback argument\n\n                    if (arguments.length === 2) {\n                        length = callbacks.length;\n                        for (i = 0; i < length; ++i) {\n                            callbacks[i].call(this, arguments[1]);\n                        }\n                    } else {\n                        args = [];\n                        i = arguments.length;\n                        for (i = 1; i < arguments.length; ++i) {\n                            args.push(arguments[i]);\n                        }\n                        length = callbacks.length;\n                        for (i = 0; i < length; ++i) {\n                            callbacks[i].apply(this, args);\n                        }\n                    }\n                };\n                /**\n                 * Destroys the stream and cleans up.\n                 */\n\n                this.dispose = function () {\n                    listeners = {};\n                };\n            };\n        };\n        /**\n         * Forwards all `data` events on this stream to the destination stream. The\n         * destination stream should provide a method `push` to receive the data\n         * events as they arrive.\n         * @param destination {stream} the stream that will receive all `data` events\n         * @param autoFlush {boolean} if false, we will not call `flush` on the destination\n         *                            when the current stream emits a 'done' event\n         * @see http://nodejs.org/api/stream.html#stream_readable_pipe_destination_options\n         */\n\n        Stream$8.prototype.pipe = function (destination) {\n            this.on('data', function (data) {\n                destination.push(data);\n            });\n            this.on('done', function (flushSource) {\n                destination.flush(flushSource);\n            });\n            this.on('partialdone', function (flushSource) {\n                destination.partialFlush(flushSource);\n            });\n            this.on('endedtimeline', function (flushSource) {\n                destination.endTimeline(flushSource);\n            });\n            this.on('reset', function (flushSource) {\n                destination.reset(flushSource);\n            });\n            return destination;\n        }; // Default stream functions that are expected to be overridden to perform\n        // actual work. These are provided by the prototype as a sort of no-op\n        // implementation so that we don't have to check for their existence in the\n        // `pipe` function above.\n\n        Stream$8.prototype.push = function (data) {\n            this.trigger('data', data);\n        };\n        Stream$8.prototype.flush = function (flushSource) {\n            this.trigger('done', flushSource);\n        };\n        Stream$8.prototype.partialFlush = function (flushSource) {\n            this.trigger('partialdone', flushSource);\n        };\n        Stream$8.prototype.endTimeline = function (flushSource) {\n            this.trigger('endedtimeline', flushSource);\n        };\n        Stream$8.prototype.reset = function (flushSource) {\n            this.trigger('reset', flushSource);\n        };\n        var stream = Stream$8;\n        var MAX_UINT32$1 = Math.pow(2, 32);\n        var getUint64$3 = function (uint8) {\n            var dv = new DataView(uint8.buffer, uint8.byteOffset, uint8.byteLength);\n            var value;\n            if (dv.getBigUint64) {\n                value = dv.getBigUint64(0);\n                if (value < Number.MAX_SAFE_INTEGER) {\n                    return Number(value);\n                }\n                return value;\n            }\n            return dv.getUint32(0) * MAX_UINT32$1 + dv.getUint32(4);\n        };\n        var numbers = {\n            getUint64: getUint64$3,\n            MAX_UINT32: MAX_UINT32$1\n        };\n        /**\n         * mux.js\n         *\n         * Copyright (c) Brightcove\n         * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE\n         *\n         * Functions that generate fragmented MP4s suitable for use with Media\n         * Source Extensions.\n         */\n\n        var MAX_UINT32 = numbers.MAX_UINT32;\n        var box, dinf, esds, ftyp, mdat, mfhd, minf, moof, moov, mvex, mvhd, trak, tkhd, mdia, mdhd, hdlr, sdtp, stbl, stsd, traf, trex, trun$1, types, MAJOR_BRAND, MINOR_VERSION, AVC1_BRAND, VIDEO_HDLR, AUDIO_HDLR, HDLR_TYPES, VMHD, SMHD, DREF, STCO, STSC, STSZ, STTS; // pre-calculate constants\n\n        (function () {\n            var i;\n            types = {\n                avc1: [],\n                // codingname\n                avcC: [],\n                btrt: [],\n                dinf: [],\n                dref: [],\n                esds: [],\n                ftyp: [],\n                hdlr: [],\n                mdat: [],\n                mdhd: [],\n                mdia: [],\n                mfhd: [],\n                minf: [],\n                moof: [],\n                moov: [],\n                mp4a: [],\n                // codingname\n                mvex: [],\n                mvhd: [],\n                pasp: [],\n                sdtp: [],\n                smhd: [],\n                stbl: [],\n                stco: [],\n                stsc: [],\n                stsd: [],\n                stsz: [],\n                stts: [],\n                styp: [],\n                tfdt: [],\n                tfhd: [],\n                traf: [],\n                trak: [],\n                trun: [],\n                trex: [],\n                tkhd: [],\n                vmhd: []\n            }; // In environments where Uint8Array is undefined (e.g., IE8), skip set up so that we\n            // don't throw an error\n\n            if (typeof Uint8Array === 'undefined') {\n                return;\n            }\n            for (i in types) {\n                if (types.hasOwnProperty(i)) {\n                    types[i] = [i.charCodeAt(0), i.charCodeAt(1), i.charCodeAt(2), i.charCodeAt(3)];\n                }\n            }\n            MAJOR_BRAND = new Uint8Array(['i'.charCodeAt(0), 's'.charCodeAt(0), 'o'.charCodeAt(0), 'm'.charCodeAt(0)]);\n            AVC1_BRAND = new Uint8Array(['a'.charCodeAt(0), 'v'.charCodeAt(0), 'c'.charCodeAt(0), '1'.charCodeAt(0)]);\n            MINOR_VERSION = new Uint8Array([0, 0, 0, 1]);\n            VIDEO_HDLR = new Uint8Array([0x00,\n                // version 0\n                0x00, 0x00, 0x00,\n                // flags\n                0x00, 0x00, 0x00, 0x00,\n                // pre_defined\n                0x76, 0x69, 0x64, 0x65,\n                // handler_type: 'vide'\n                0x00, 0x00, 0x00, 0x00,\n                // reserved\n                0x00, 0x00, 0x00, 0x00,\n                // reserved\n                0x00, 0x00, 0x00, 0x00,\n                // reserved\n                0x56, 0x69, 0x64, 0x65, 0x6f, 0x48, 0x61, 0x6e, 0x64, 0x6c, 0x65, 0x72, 0x00 // name: 'VideoHandler'\n            ]);\n\n            AUDIO_HDLR = new Uint8Array([0x00,\n                // version 0\n                0x00, 0x00, 0x00,\n                // flags\n                0x00, 0x00, 0x00, 0x00,\n                // pre_defined\n                0x73, 0x6f, 0x75, 0x6e,\n                // handler_type: 'soun'\n                0x00, 0x00, 0x00, 0x00,\n                // reserved\n                0x00, 0x00, 0x00, 0x00,\n                // reserved\n                0x00, 0x00, 0x00, 0x00,\n                // reserved\n                0x53, 0x6f, 0x75, 0x6e, 0x64, 0x48, 0x61, 0x6e, 0x64, 0x6c, 0x65, 0x72, 0x00 // name: 'SoundHandler'\n            ]);\n\n            HDLR_TYPES = {\n                video: VIDEO_HDLR,\n                audio: AUDIO_HDLR\n            };\n            DREF = new Uint8Array([0x00,\n                // version 0\n                0x00, 0x00, 0x00,\n                // flags\n                0x00, 0x00, 0x00, 0x01,\n                // entry_count\n                0x00, 0x00, 0x00, 0x0c,\n                // entry_size\n                0x75, 0x72, 0x6c, 0x20,\n                // 'url' type\n                0x00,\n                // version 0\n                0x00, 0x00, 0x01 // entry_flags\n            ]);\n\n            SMHD = new Uint8Array([0x00,\n                // version\n                0x00, 0x00, 0x00,\n                // flags\n                0x00, 0x00,\n                // balance, 0 means centered\n                0x00, 0x00 // reserved\n            ]);\n\n            STCO = new Uint8Array([0x00,\n                // version\n                0x00, 0x00, 0x00,\n                // flags\n                0x00, 0x00, 0x00, 0x00 // entry_count\n            ]);\n\n            STSC = STCO;\n            STSZ = new Uint8Array([0x00,\n                // version\n                0x00, 0x00, 0x00,\n                // flags\n                0x00, 0x00, 0x00, 0x00,\n                // sample_size\n                0x00, 0x00, 0x00, 0x00 // sample_count\n            ]);\n\n            STTS = STCO;\n            VMHD = new Uint8Array([0x00,\n                // version\n                0x00, 0x00, 0x01,\n                // flags\n                0x00, 0x00,\n                // graphicsmode\n                0x00, 0x00, 0x00, 0x00, 0x00, 0x00 // opcolor\n            ]);\n        })();\n\n        box = function (type) {\n            var payload = [],\n                size = 0,\n                i,\n                result,\n                view;\n            for (i = 1; i < arguments.length; i++) {\n                payload.push(arguments[i]);\n            }\n            i = payload.length; // calculate the total size we need to allocate\n\n            while (i--) {\n                size += payload[i].byteLength;\n            }\n            result = new Uint8Array(size + 8);\n            view = new DataView(result.buffer, result.byteOffset, result.byteLength);\n            view.setUint32(0, result.byteLength);\n            result.set(type, 4); // copy the payload into the result\n\n            for (i = 0, size = 8; i < payload.length; i++) {\n                result.set(payload[i], size);\n                size += payload[i].byteLength;\n            }\n            return result;\n        };\n        dinf = function () {\n            return box(types.dinf, box(types.dref, DREF));\n        };\n        esds = function (track) {\n            return box(types.esds, new Uint8Array([0x00,\n                // version\n                0x00, 0x00, 0x00,\n                // flags\n                // ES_Descriptor\n                0x03,\n                // tag, ES_DescrTag\n                0x19,\n                // length\n                0x00, 0x00,\n                // ES_ID\n                0x00,\n                // streamDependenceFlag, URL_flag, reserved, streamPriority\n                // DecoderConfigDescriptor\n                0x04,\n                // tag, DecoderConfigDescrTag\n                0x11,\n                // length\n                0x40,\n                // object type\n                0x15,\n                // streamType\n                0x00, 0x06, 0x00,\n                // bufferSizeDB\n                0x00, 0x00, 0xda, 0xc0,\n                // maxBitrate\n                0x00, 0x00, 0xda, 0xc0,\n                // avgBitrate\n                // DecoderSpecificInfo\n                0x05,\n                // tag, DecoderSpecificInfoTag\n                0x02,\n                // length\n                // ISO/IEC 14496-3, AudioSpecificConfig\n                // for samplingFrequencyIndex see ISO/IEC 13818-7:2006, 8.1.3.2.2, Table 35\n                track.audioobjecttype << 3 | track.samplingfrequencyindex >>> 1, track.samplingfrequencyindex << 7 | track.channelcount << 3, 0x06, 0x01, 0x02 // GASpecificConfig\n            ]));\n        };\n\n        ftyp = function () {\n            return box(types.ftyp, MAJOR_BRAND, MINOR_VERSION, MAJOR_BRAND, AVC1_BRAND);\n        };\n        hdlr = function (type) {\n            return box(types.hdlr, HDLR_TYPES[type]);\n        };\n        mdat = function (data) {\n            return box(types.mdat, data);\n        };\n        mdhd = function (track) {\n            var result = new Uint8Array([0x00,\n                // version 0\n                0x00, 0x00, 0x00,\n                // flags\n                0x00, 0x00, 0x00, 0x02,\n                // creation_time\n                0x00, 0x00, 0x00, 0x03,\n                // modification_time\n                0x00, 0x01, 0x5f, 0x90,\n                // timescale, 90,000 \"ticks\" per second\n                track.duration >>> 24 & 0xFF, track.duration >>> 16 & 0xFF, track.duration >>> 8 & 0xFF, track.duration & 0xFF,\n                // duration\n                0x55, 0xc4,\n                // 'und' language (undetermined)\n                0x00, 0x00]); // Use the sample rate from the track metadata, when it is\n            // defined. The sample rate can be parsed out of an ADTS header, for\n            // instance.\n\n            if (track.samplerate) {\n                result[12] = track.samplerate >>> 24 & 0xFF;\n                result[13] = track.samplerate >>> 16 & 0xFF;\n                result[14] = track.samplerate >>> 8 & 0xFF;\n                result[15] = track.samplerate & 0xFF;\n            }\n            return box(types.mdhd, result);\n        };\n        mdia = function (track) {\n            return box(types.mdia, mdhd(track), hdlr(track.type), minf(track));\n        };\n        mfhd = function (sequenceNumber) {\n            return box(types.mfhd, new Uint8Array([0x00, 0x00, 0x00, 0x00,\n                // flags\n                (sequenceNumber & 0xFF000000) >> 24, (sequenceNumber & 0xFF0000) >> 16, (sequenceNumber & 0xFF00) >> 8, sequenceNumber & 0xFF // sequence_number\n            ]));\n        };\n\n        minf = function (track) {\n            return box(types.minf, track.type === 'video' ? box(types.vmhd, VMHD) : box(types.smhd, SMHD), dinf(), stbl(track));\n        };\n        moof = function (sequenceNumber, tracks) {\n            var trackFragments = [],\n                i = tracks.length; // build traf boxes for each track fragment\n\n            while (i--) {\n                trackFragments[i] = traf(tracks[i]);\n            }\n            return box.apply(null, [types.moof, mfhd(sequenceNumber)].concat(trackFragments));\n        };\n        /**\n         * Returns a movie box.\n         * @param tracks {array} the tracks associated with this movie\n         * @see ISO/IEC 14496-12:2012(E), section 8.2.1\n         */\n\n        moov = function (tracks) {\n            var i = tracks.length,\n                boxes = [];\n            while (i--) {\n                boxes[i] = trak(tracks[i]);\n            }\n            return box.apply(null, [types.moov, mvhd(0xffffffff)].concat(boxes).concat(mvex(tracks)));\n        };\n        mvex = function (tracks) {\n            var i = tracks.length,\n                boxes = [];\n            while (i--) {\n                boxes[i] = trex(tracks[i]);\n            }\n            return box.apply(null, [types.mvex].concat(boxes));\n        };\n        mvhd = function (duration) {\n            var bytes = new Uint8Array([0x00,\n                // version 0\n                0x00, 0x00, 0x00,\n                // flags\n                0x00, 0x00, 0x00, 0x01,\n                // creation_time\n                0x00, 0x00, 0x00, 0x02,\n                // modification_time\n                0x00, 0x01, 0x5f, 0x90,\n                // timescale, 90,000 \"ticks\" per second\n                (duration & 0xFF000000) >> 24, (duration & 0xFF0000) >> 16, (duration & 0xFF00) >> 8, duration & 0xFF,\n                // duration\n                0x00, 0x01, 0x00, 0x00,\n                // 1.0 rate\n                0x01, 0x00,\n                // 1.0 volume\n                0x00, 0x00,\n                // reserved\n                0x00, 0x00, 0x00, 0x00,\n                // reserved\n                0x00, 0x00, 0x00, 0x00,\n                // reserved\n                0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x00, 0x00, 0x00,\n                // transformation: unity matrix\n                0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,\n                // pre_defined\n                0xff, 0xff, 0xff, 0xff // next_track_ID\n            ]);\n\n            return box(types.mvhd, bytes);\n        };\n        sdtp = function (track) {\n            var samples = track.samples || [],\n                bytes = new Uint8Array(4 + samples.length),\n                flags,\n                i; // leave the full box header (4 bytes) all zero\n            // write the sample table\n\n            for (i = 0; i < samples.length; i++) {\n                flags = samples[i].flags;\n                bytes[i + 4] = flags.dependsOn << 4 | flags.isDependedOn << 2 | flags.hasRedundancy;\n            }\n            return box(types.sdtp, bytes);\n        };\n        stbl = function (track) {\n            return box(types.stbl, stsd(track), box(types.stts, STTS), box(types.stsc, STSC), box(types.stsz, STSZ), box(types.stco, STCO));\n        };\n        (function () {\n            var videoSample, audioSample;\n            stsd = function (track) {\n                return box(types.stsd, new Uint8Array([0x00,\n                    // version 0\n                    0x00, 0x00, 0x00,\n                    // flags\n                    0x00, 0x00, 0x00, 0x01]), track.type === 'video' ? videoSample(track) : audioSample(track));\n            };\n            videoSample = function (track) {\n                var sps = track.sps || [],\n                    pps = track.pps || [],\n                    sequenceParameterSets = [],\n                    pictureParameterSets = [],\n                    i,\n                    avc1Box; // assemble the SPSs\n\n                for (i = 0; i < sps.length; i++) {\n                    sequenceParameterSets.push((sps[i].byteLength & 0xFF00) >>> 8);\n                    sequenceParameterSets.push(sps[i].byteLength & 0xFF); // sequenceParameterSetLength\n\n                    sequenceParameterSets = sequenceParameterSets.concat(Array.prototype.slice.call(sps[i])); // SPS\n                } // assemble the PPSs\n\n                for (i = 0; i < pps.length; i++) {\n                    pictureParameterSets.push((pps[i].byteLength & 0xFF00) >>> 8);\n                    pictureParameterSets.push(pps[i].byteLength & 0xFF);\n                    pictureParameterSets = pictureParameterSets.concat(Array.prototype.slice.call(pps[i]));\n                }\n                avc1Box = [types.avc1, new Uint8Array([0x00, 0x00, 0x00, 0x00, 0x00, 0x00,\n                    // reserved\n                    0x00, 0x01,\n                    // data_reference_index\n                    0x00, 0x00,\n                    // pre_defined\n                    0x00, 0x00,\n                    // reserved\n                    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,\n                    // pre_defined\n                    (track.width & 0xff00) >> 8, track.width & 0xff,\n                    // width\n                    (track.height & 0xff00) >> 8, track.height & 0xff,\n                    // height\n                    0x00, 0x48, 0x00, 0x00,\n                    // horizresolution\n                    0x00, 0x48, 0x00, 0x00,\n                    // vertresolution\n                    0x00, 0x00, 0x00, 0x00,\n                    // reserved\n                    0x00, 0x01,\n                    // frame_count\n                    0x13, 0x76, 0x69, 0x64, 0x65, 0x6f, 0x6a, 0x73, 0x2d, 0x63, 0x6f, 0x6e, 0x74, 0x72, 0x69, 0x62, 0x2d, 0x68, 0x6c, 0x73, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,\n                    // compressorname\n                    0x00, 0x18,\n                    // depth = 24\n                    0x11, 0x11 // pre_defined = -1\n                ]), box(types.avcC, new Uint8Array([0x01,\n                    // configurationVersion\n                    track.profileIdc,\n                    // AVCProfileIndication\n                    track.profileCompatibility,\n                    // profile_compatibility\n                    track.levelIdc,\n                    // AVCLevelIndication\n                    0xff // lengthSizeMinusOne, hard-coded to 4 bytes\n                ].concat([sps.length],\n                    // numOfSequenceParameterSets\n                    sequenceParameterSets,\n                    // \"SPS\"\n                    [pps.length],\n                    // numOfPictureParameterSets\n                    pictureParameterSets // \"PPS\"\n                ))), box(types.btrt, new Uint8Array([0x00, 0x1c, 0x9c, 0x80,\n                    // bufferSizeDB\n                    0x00, 0x2d, 0xc6, 0xc0,\n                    // maxBitrate\n                    0x00, 0x2d, 0xc6, 0xc0 // avgBitrate\n                ]))];\n\n                if (track.sarRatio) {\n                    var hSpacing = track.sarRatio[0],\n                        vSpacing = track.sarRatio[1];\n                    avc1Box.push(box(types.pasp, new Uint8Array([(hSpacing & 0xFF000000) >> 24, (hSpacing & 0xFF0000) >> 16, (hSpacing & 0xFF00) >> 8, hSpacing & 0xFF, (vSpacing & 0xFF000000) >> 24, (vSpacing & 0xFF0000) >> 16, (vSpacing & 0xFF00) >> 8, vSpacing & 0xFF])));\n                }\n                return box.apply(null, avc1Box);\n            };\n            audioSample = function (track) {\n                return box(types.mp4a, new Uint8Array([\n                    // SampleEntry, ISO/IEC 14496-12\n                    0x00, 0x00, 0x00, 0x00, 0x00, 0x00,\n                    // reserved\n                    0x00, 0x01,\n                    // data_reference_index\n                    // AudioSampleEntry, ISO/IEC 14496-12\n                    0x00, 0x00, 0x00, 0x00,\n                    // reserved\n                    0x00, 0x00, 0x00, 0x00,\n                    // reserved\n                    (track.channelcount & 0xff00) >> 8, track.channelcount & 0xff,\n                    // channelcount\n                    (track.samplesize & 0xff00) >> 8, track.samplesize & 0xff,\n                    // samplesize\n                    0x00, 0x00,\n                    // pre_defined\n                    0x00, 0x00,\n                    // reserved\n                    (track.samplerate & 0xff00) >> 8, track.samplerate & 0xff, 0x00, 0x00 // samplerate, 16.16\n                    // MP4AudioSampleEntry, ISO/IEC 14496-14\n                ]), esds(track));\n            };\n        })();\n        tkhd = function (track) {\n            var result = new Uint8Array([0x00,\n                // version 0\n                0x00, 0x00, 0x07,\n                // flags\n                0x00, 0x00, 0x00, 0x00,\n                // creation_time\n                0x00, 0x00, 0x00, 0x00,\n                // modification_time\n                (track.id & 0xFF000000) >> 24, (track.id & 0xFF0000) >> 16, (track.id & 0xFF00) >> 8, track.id & 0xFF,\n                // track_ID\n                0x00, 0x00, 0x00, 0x00,\n                // reserved\n                (track.duration & 0xFF000000) >> 24, (track.duration & 0xFF0000) >> 16, (track.duration & 0xFF00) >> 8, track.duration & 0xFF,\n                // duration\n                0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,\n                // reserved\n                0x00, 0x00,\n                // layer\n                0x00, 0x00,\n                // alternate_group\n                0x01, 0x00,\n                // non-audio track volume\n                0x00, 0x00,\n                // reserved\n                0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x00, 0x00, 0x00,\n                // transformation: unity matrix\n                (track.width & 0xFF00) >> 8, track.width & 0xFF, 0x00, 0x00,\n                // width\n                (track.height & 0xFF00) >> 8, track.height & 0xFF, 0x00, 0x00 // height\n            ]);\n\n            return box(types.tkhd, result);\n        };\n        /**\n         * Generate a track fragment (traf) box. A traf box collects metadata\n         * about tracks in a movie fragment (moof) box.\n         */\n\n        traf = function (track) {\n            var trackFragmentHeader, trackFragmentDecodeTime, trackFragmentRun, sampleDependencyTable, dataOffset, upperWordBaseMediaDecodeTime, lowerWordBaseMediaDecodeTime;\n            trackFragmentHeader = box(types.tfhd, new Uint8Array([0x00,\n                // version 0\n                0x00, 0x00, 0x3a,\n                // flags\n                (track.id & 0xFF000000) >> 24, (track.id & 0xFF0000) >> 16, (track.id & 0xFF00) >> 8, track.id & 0xFF,\n                // track_ID\n                0x00, 0x00, 0x00, 0x01,\n                // sample_description_index\n                0x00, 0x00, 0x00, 0x00,\n                // default_sample_duration\n                0x00, 0x00, 0x00, 0x00,\n                // default_sample_size\n                0x00, 0x00, 0x00, 0x00 // default_sample_flags\n            ]));\n\n            upperWordBaseMediaDecodeTime = Math.floor(track.baseMediaDecodeTime / MAX_UINT32);\n            lowerWordBaseMediaDecodeTime = Math.floor(track.baseMediaDecodeTime % MAX_UINT32);\n            trackFragmentDecodeTime = box(types.tfdt, new Uint8Array([0x01,\n                // version 1\n                0x00, 0x00, 0x00,\n                // flags\n                // baseMediaDecodeTime\n                upperWordBaseMediaDecodeTime >>> 24 & 0xFF, upperWordBaseMediaDecodeTime >>> 16 & 0xFF, upperWordBaseMediaDecodeTime >>> 8 & 0xFF, upperWordBaseMediaDecodeTime & 0xFF, lowerWordBaseMediaDecodeTime >>> 24 & 0xFF, lowerWordBaseMediaDecodeTime >>> 16 & 0xFF, lowerWordBaseMediaDecodeTime >>> 8 & 0xFF, lowerWordBaseMediaDecodeTime & 0xFF])); // the data offset specifies the number of bytes from the start of\n            // the containing moof to the first payload byte of the associated\n            // mdat\n\n            dataOffset = 32 +\n                // tfhd\n                20 +\n                // tfdt\n                8 +\n                // traf header\n                16 +\n                // mfhd\n                8 +\n                // moof header\n                8; // mdat header\n            // audio tracks require less metadata\n\n            if (track.type === 'audio') {\n                trackFragmentRun = trun$1(track, dataOffset);\n                return box(types.traf, trackFragmentHeader, trackFragmentDecodeTime, trackFragmentRun);\n            } // video tracks should contain an independent and disposable samples\n            // box (sdtp)\n            // generate one and adjust offsets to match\n\n            sampleDependencyTable = sdtp(track);\n            trackFragmentRun = trun$1(track, sampleDependencyTable.length + dataOffset);\n            return box(types.traf, trackFragmentHeader, trackFragmentDecodeTime, trackFragmentRun, sampleDependencyTable);\n        };\n        /**\n         * Generate a track box.\n         * @param track {object} a track definition\n         * @return {Uint8Array} the track box\n         */\n\n        trak = function (track) {\n            track.duration = track.duration || 0xffffffff;\n            return box(types.trak, tkhd(track), mdia(track));\n        };\n        trex = function (track) {\n            var result = new Uint8Array([0x00,\n                // version 0\n                0x00, 0x00, 0x00,\n                // flags\n                (track.id & 0xFF000000) >> 24, (track.id & 0xFF0000) >> 16, (track.id & 0xFF00) >> 8, track.id & 0xFF,\n                // track_ID\n                0x00, 0x00, 0x00, 0x01,\n                // default_sample_description_index\n                0x00, 0x00, 0x00, 0x00,\n                // default_sample_duration\n                0x00, 0x00, 0x00, 0x00,\n                // default_sample_size\n                0x00, 0x01, 0x00, 0x01 // default_sample_flags\n            ]); // the last two bytes of default_sample_flags is the sample\n            // degradation priority, a hint about the importance of this sample\n            // relative to others. Lower the degradation priority for all sample\n            // types other than video.\n\n            if (track.type !== 'video') {\n                result[result.length - 1] = 0x00;\n            }\n            return box(types.trex, result);\n        };\n        (function () {\n            var audioTrun, videoTrun, trunHeader; // This method assumes all samples are uniform. That is, if a\n            // duration is present for the first sample, it will be present for\n            // all subsequent samples.\n            // see ISO/IEC 14496-12:2012, Section 8.8.8.1\n\n            trunHeader = function (samples, offset) {\n                var durationPresent = 0,\n                    sizePresent = 0,\n                    flagsPresent = 0,\n                    compositionTimeOffset = 0; // trun flag constants\n\n                if (samples.length) {\n                    if (samples[0].duration !== undefined) {\n                        durationPresent = 0x1;\n                    }\n                    if (samples[0].size !== undefined) {\n                        sizePresent = 0x2;\n                    }\n                    if (samples[0].flags !== undefined) {\n                        flagsPresent = 0x4;\n                    }\n                    if (samples[0].compositionTimeOffset !== undefined) {\n                        compositionTimeOffset = 0x8;\n                    }\n                }\n                return [0x00,\n                    // version 0\n                    0x00, durationPresent | sizePresent | flagsPresent | compositionTimeOffset, 0x01,\n                    // flags\n                    (samples.length & 0xFF000000) >>> 24, (samples.length & 0xFF0000) >>> 16, (samples.length & 0xFF00) >>> 8, samples.length & 0xFF,\n                    // sample_count\n                    (offset & 0xFF000000) >>> 24, (offset & 0xFF0000) >>> 16, (offset & 0xFF00) >>> 8, offset & 0xFF // data_offset\n                ];\n            };\n\n            videoTrun = function (track, offset) {\n                var bytesOffest, bytes, header, samples, sample, i;\n                samples = track.samples || [];\n                offset += 8 + 12 + 16 * samples.length;\n                header = trunHeader(samples, offset);\n                bytes = new Uint8Array(header.length + samples.length * 16);\n                bytes.set(header);\n                bytesOffest = header.length;\n                for (i = 0; i < samples.length; i++) {\n                    sample = samples[i];\n                    bytes[bytesOffest++] = (sample.duration & 0xFF000000) >>> 24;\n                    bytes[bytesOffest++] = (sample.duration & 0xFF0000) >>> 16;\n                    bytes[bytesOffest++] = (sample.duration & 0xFF00) >>> 8;\n                    bytes[bytesOffest++] = sample.duration & 0xFF; // sample_duration\n\n                    bytes[bytesOffest++] = (sample.size & 0xFF000000) >>> 24;\n                    bytes[bytesOffest++] = (sample.size & 0xFF0000) >>> 16;\n                    bytes[bytesOffest++] = (sample.size & 0xFF00) >>> 8;\n                    bytes[bytesOffest++] = sample.size & 0xFF; // sample_size\n\n                    bytes[bytesOffest++] = sample.flags.isLeading << 2 | sample.flags.dependsOn;\n                    bytes[bytesOffest++] = sample.flags.isDependedOn << 6 | sample.flags.hasRedundancy << 4 | sample.flags.paddingValue << 1 | sample.flags.isNonSyncSample;\n                    bytes[bytesOffest++] = sample.flags.degradationPriority & 0xF0 << 8;\n                    bytes[bytesOffest++] = sample.flags.degradationPriority & 0x0F; // sample_flags\n\n                    bytes[bytesOffest++] = (sample.compositionTimeOffset & 0xFF000000) >>> 24;\n                    bytes[bytesOffest++] = (sample.compositionTimeOffset & 0xFF0000) >>> 16;\n                    bytes[bytesOffest++] = (sample.compositionTimeOffset & 0xFF00) >>> 8;\n                    bytes[bytesOffest++] = sample.compositionTimeOffset & 0xFF; // sample_composition_time_offset\n                }\n\n                return box(types.trun, bytes);\n            };\n            audioTrun = function (track, offset) {\n                var bytes, bytesOffest, header, samples, sample, i;\n                samples = track.samples || [];\n                offset += 8 + 12 + 8 * samples.length;\n                header = trunHeader(samples, offset);\n                bytes = new Uint8Array(header.length + samples.length * 8);\n                bytes.set(header);\n                bytesOffest = header.length;\n                for (i = 0; i < samples.length; i++) {\n                    sample = samples[i];\n                    bytes[bytesOffest++] = (sample.duration & 0xFF000000) >>> 24;\n                    bytes[bytesOffest++] = (sample.duration & 0xFF0000) >>> 16;\n                    bytes[bytesOffest++] = (sample.duration & 0xFF00) >>> 8;\n                    bytes[bytesOffest++] = sample.duration & 0xFF; // sample_duration\n\n                    bytes[bytesOffest++] = (sample.size & 0xFF000000) >>> 24;\n                    bytes[bytesOffest++] = (sample.size & 0xFF0000) >>> 16;\n                    bytes[bytesOffest++] = (sample.size & 0xFF00) >>> 8;\n                    bytes[bytesOffest++] = sample.size & 0xFF; // sample_size\n                }\n\n                return box(types.trun, bytes);\n            };\n            trun$1 = function (track, offset) {\n                if (track.type === 'audio') {\n                    return audioTrun(track, offset);\n                }\n                return videoTrun(track, offset);\n            };\n        })();\n        var mp4Generator = {\n            ftyp: ftyp,\n            mdat: mdat,\n            moof: moof,\n            moov: moov,\n            initSegment: function (tracks) {\n                var fileType = ftyp(),\n                    movie = moov(tracks),\n                    result;\n                result = new Uint8Array(fileType.byteLength + movie.byteLength);\n                result.set(fileType);\n                result.set(movie, fileType.byteLength);\n                return result;\n            }\n        };\n        /**\n         * mux.js\n         *\n         * Copyright (c) Brightcove\n         * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE\n         */\n            // composed of the nal units that make up that frame\n            // Also keep track of cummulative data about the frame from the nal units such\n            // as the frame duration, starting pts, etc.\n\n        var groupNalsIntoFrames = function (nalUnits) {\n                var i,\n                    currentNal,\n                    currentFrame = [],\n                    frames = []; // TODO added for LHLS, make sure this is OK\n\n                frames.byteLength = 0;\n                frames.nalCount = 0;\n                frames.duration = 0;\n                currentFrame.byteLength = 0;\n                for (i = 0; i < nalUnits.length; i++) {\n                    currentNal = nalUnits[i]; // Split on 'aud'-type nal units\n\n                    if (currentNal.nalUnitType === 'access_unit_delimiter_rbsp') {\n                        // Since the very first nal unit is expected to be an AUD\n                        // only push to the frames array when currentFrame is not empty\n                        if (currentFrame.length) {\n                            currentFrame.duration = currentNal.dts - currentFrame.dts; // TODO added for LHLS, make sure this is OK\n\n                            frames.byteLength += currentFrame.byteLength;\n                            frames.nalCount += currentFrame.length;\n                            frames.duration += currentFrame.duration;\n                            frames.push(currentFrame);\n                        }\n                        currentFrame = [currentNal];\n                        currentFrame.byteLength = currentNal.data.byteLength;\n                        currentFrame.pts = currentNal.pts;\n                        currentFrame.dts = currentNal.dts;\n                    } else {\n                        // Specifically flag key frames for ease of use later\n                        if (currentNal.nalUnitType === 'slice_layer_without_partitioning_rbsp_idr') {\n                            currentFrame.keyFrame = true;\n                        }\n                        currentFrame.duration = currentNal.dts - currentFrame.dts;\n                        currentFrame.byteLength += currentNal.data.byteLength;\n                        currentFrame.push(currentNal);\n                    }\n                } // For the last frame, use the duration of the previous frame if we\n                // have nothing better to go on\n\n                if (frames.length && (!currentFrame.duration || currentFrame.duration <= 0)) {\n                    currentFrame.duration = frames[frames.length - 1].duration;\n                } // Push the final frame\n                // TODO added for LHLS, make sure this is OK\n\n                frames.byteLength += currentFrame.byteLength;\n                frames.nalCount += currentFrame.length;\n                frames.duration += currentFrame.duration;\n                frames.push(currentFrame);\n                return frames;\n            }; // Convert an array of frames into an array of Gop with each Gop being composed\n        // of the frames that make up that Gop\n        // Also keep track of cummulative data about the Gop from the frames such as the\n        // Gop duration, starting pts, etc.\n\n        var groupFramesIntoGops = function (frames) {\n            var i,\n                currentFrame,\n                currentGop = [],\n                gops = []; // We must pre-set some of the values on the Gop since we\n            // keep running totals of these values\n\n            currentGop.byteLength = 0;\n            currentGop.nalCount = 0;\n            currentGop.duration = 0;\n            currentGop.pts = frames[0].pts;\n            currentGop.dts = frames[0].dts; // store some metadata about all the Gops\n\n            gops.byteLength = 0;\n            gops.nalCount = 0;\n            gops.duration = 0;\n            gops.pts = frames[0].pts;\n            gops.dts = frames[0].dts;\n            for (i = 0; i < frames.length; i++) {\n                currentFrame = frames[i];\n                if (currentFrame.keyFrame) {\n                    // Since the very first frame is expected to be an keyframe\n                    // only push to the gops array when currentGop is not empty\n                    if (currentGop.length) {\n                        gops.push(currentGop);\n                        gops.byteLength += currentGop.byteLength;\n                        gops.nalCount += currentGop.nalCount;\n                        gops.duration += currentGop.duration;\n                    }\n                    currentGop = [currentFrame];\n                    currentGop.nalCount = currentFrame.length;\n                    currentGop.byteLength = currentFrame.byteLength;\n                    currentGop.pts = currentFrame.pts;\n                    currentGop.dts = currentFrame.dts;\n                    currentGop.duration = currentFrame.duration;\n                } else {\n                    currentGop.duration += currentFrame.duration;\n                    currentGop.nalCount += currentFrame.length;\n                    currentGop.byteLength += currentFrame.byteLength;\n                    currentGop.push(currentFrame);\n                }\n            }\n            if (gops.length && currentGop.duration <= 0) {\n                currentGop.duration = gops[gops.length - 1].duration;\n            }\n            gops.byteLength += currentGop.byteLength;\n            gops.nalCount += currentGop.nalCount;\n            gops.duration += currentGop.duration; // push the final Gop\n\n            gops.push(currentGop);\n            return gops;\n        };\n        /*\n     * Search for the first keyframe in the GOPs and throw away all frames\n     * until that keyframe. Then extend the duration of the pulled keyframe\n     * and pull the PTS and DTS of the keyframe so that it covers the time\n     * range of the frames that were disposed.\n     *\n     * @param {Array} gops video GOPs\n     * @returns {Array} modified video GOPs\n     */\n\n        var extendFirstKeyFrame = function (gops) {\n            var currentGop;\n            if (!gops[0][0].keyFrame && gops.length > 1) {\n                // Remove the first GOP\n                currentGop = gops.shift();\n                gops.byteLength -= currentGop.byteLength;\n                gops.nalCount -= currentGop.nalCount; // Extend the first frame of what is now the\n                // first gop to cover the time period of the\n                // frames we just removed\n\n                gops[0][0].dts = currentGop.dts;\n                gops[0][0].pts = currentGop.pts;\n                gops[0][0].duration += currentGop.duration;\n            }\n            return gops;\n        };\n        /**\n         * Default sample object\n         * see ISO/IEC 14496-12:2012, section 8.6.4.3\n         */\n\n        var createDefaultSample = function () {\n            return {\n                size: 0,\n                flags: {\n                    isLeading: 0,\n                    dependsOn: 1,\n                    isDependedOn: 0,\n                    hasRedundancy: 0,\n                    degradationPriority: 0,\n                    isNonSyncSample: 1\n                }\n            };\n        };\n        /*\n     * Collates information from a video frame into an object for eventual\n     * entry into an MP4 sample table.\n     *\n     * @param {Object} frame the video frame\n     * @param {Number} dataOffset the byte offset to position the sample\n     * @return {Object} object containing sample table info for a frame\n     */\n\n        var sampleForFrame = function (frame, dataOffset) {\n            var sample = createDefaultSample();\n            sample.dataOffset = dataOffset;\n            sample.compositionTimeOffset = frame.pts - frame.dts;\n            sample.duration = frame.duration;\n            sample.size = 4 * frame.length; // Space for nal unit size\n\n            sample.size += frame.byteLength;\n            if (frame.keyFrame) {\n                sample.flags.dependsOn = 2;\n                sample.flags.isNonSyncSample = 0;\n            }\n            return sample;\n        }; // generate the track's sample table from an array of gops\n\n        var generateSampleTable$1 = function (gops, baseDataOffset) {\n            var h,\n                i,\n                sample,\n                currentGop,\n                currentFrame,\n                dataOffset = baseDataOffset || 0,\n                samples = [];\n            for (h = 0; h < gops.length; h++) {\n                currentGop = gops[h];\n                for (i = 0; i < currentGop.length; i++) {\n                    currentFrame = currentGop[i];\n                    sample = sampleForFrame(currentFrame, dataOffset);\n                    dataOffset += sample.size;\n                    samples.push(sample);\n                }\n            }\n            return samples;\n        }; // generate the track's raw mdat data from an array of gops\n\n        var concatenateNalData = function (gops) {\n            var h,\n                i,\n                j,\n                currentGop,\n                currentFrame,\n                currentNal,\n                dataOffset = 0,\n                nalsByteLength = gops.byteLength,\n                numberOfNals = gops.nalCount,\n                totalByteLength = nalsByteLength + 4 * numberOfNals,\n                data = new Uint8Array(totalByteLength),\n                view = new DataView(data.buffer); // For each Gop..\n\n            for (h = 0; h < gops.length; h++) {\n                currentGop = gops[h]; // For each Frame..\n\n                for (i = 0; i < currentGop.length; i++) {\n                    currentFrame = currentGop[i]; // For each NAL..\n\n                    for (j = 0; j < currentFrame.length; j++) {\n                        currentNal = currentFrame[j];\n                        view.setUint32(dataOffset, currentNal.data.byteLength);\n                        dataOffset += 4;\n                        data.set(currentNal.data, dataOffset);\n                        dataOffset += currentNal.data.byteLength;\n                    }\n                }\n            }\n            return data;\n        }; // generate the track's sample table from a frame\n\n        var generateSampleTableForFrame = function (frame, baseDataOffset) {\n            var sample,\n                dataOffset = baseDataOffset || 0,\n                samples = [];\n            sample = sampleForFrame(frame, dataOffset);\n            samples.push(sample);\n            return samples;\n        }; // generate the track's raw mdat data from a frame\n\n        var concatenateNalDataForFrame = function (frame) {\n            var i,\n                currentNal,\n                dataOffset = 0,\n                nalsByteLength = frame.byteLength,\n                numberOfNals = frame.length,\n                totalByteLength = nalsByteLength + 4 * numberOfNals,\n                data = new Uint8Array(totalByteLength),\n                view = new DataView(data.buffer); // For each NAL..\n\n            for (i = 0; i < frame.length; i++) {\n                currentNal = frame[i];\n                view.setUint32(dataOffset, currentNal.data.byteLength);\n                dataOffset += 4;\n                data.set(currentNal.data, dataOffset);\n                dataOffset += currentNal.data.byteLength;\n            }\n            return data;\n        };\n        var frameUtils$1 = {\n            groupNalsIntoFrames: groupNalsIntoFrames,\n            groupFramesIntoGops: groupFramesIntoGops,\n            extendFirstKeyFrame: extendFirstKeyFrame,\n            generateSampleTable: generateSampleTable$1,\n            concatenateNalData: concatenateNalData,\n            generateSampleTableForFrame: generateSampleTableForFrame,\n            concatenateNalDataForFrame: concatenateNalDataForFrame\n        };\n        /**\n         * mux.js\n         *\n         * Copyright (c) Brightcove\n         * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE\n         */\n\n        var highPrefix = [33, 16, 5, 32, 164, 27];\n        var lowPrefix = [33, 65, 108, 84, 1, 2, 4, 8, 168, 2, 4, 8, 17, 191, 252];\n        var zeroFill = function (count) {\n            var a = [];\n            while (count--) {\n                a.push(0);\n            }\n            return a;\n        };\n        var makeTable = function (metaTable) {\n            return Object.keys(metaTable).reduce(function (obj, key) {\n                obj[key] = new Uint8Array(metaTable[key].reduce(function (arr, part) {\n                    return arr.concat(part);\n                }, []));\n                return obj;\n            }, {});\n        };\n        var silence;\n        var silence_1 = function () {\n            if (!silence) {\n                // Frames-of-silence to use for filling in missing AAC frames\n                var coneOfSilence = {\n                    96000: [highPrefix, [227, 64], zeroFill(154), [56]],\n                    88200: [highPrefix, [231], zeroFill(170), [56]],\n                    64000: [highPrefix, [248, 192], zeroFill(240), [56]],\n                    48000: [highPrefix, [255, 192], zeroFill(268), [55, 148, 128], zeroFill(54), [112]],\n                    44100: [highPrefix, [255, 192], zeroFill(268), [55, 163, 128], zeroFill(84), [112]],\n                    32000: [highPrefix, [255, 192], zeroFill(268), [55, 234], zeroFill(226), [112]],\n                    24000: [highPrefix, [255, 192], zeroFill(268), [55, 255, 128], zeroFill(268), [111, 112], zeroFill(126), [224]],\n                    16000: [highPrefix, [255, 192], zeroFill(268), [55, 255, 128], zeroFill(268), [111, 255], zeroFill(269), [223, 108], zeroFill(195), [1, 192]],\n                    12000: [lowPrefix, zeroFill(268), [3, 127, 248], zeroFill(268), [6, 255, 240], zeroFill(268), [13, 255, 224], zeroFill(268), [27, 253, 128], zeroFill(259), [56]],\n                    11025: [lowPrefix, zeroFill(268), [3, 127, 248], zeroFill(268), [6, 255, 240], zeroFill(268), [13, 255, 224], zeroFill(268), [27, 255, 192], zeroFill(268), [55, 175, 128], zeroFill(108), [112]],\n                    8000: [lowPrefix, zeroFill(268), [3, 121, 16], zeroFill(47), [7]]\n                };\n                silence = makeTable(coneOfSilence);\n            }\n            return silence;\n        };\n        /**\n         * mux.js\n         *\n         * Copyright (c) Brightcove\n         * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE\n         */\n\n        var ONE_SECOND_IN_TS$4 = 90000,\n            // 90kHz clock\n            secondsToVideoTs,\n            secondsToAudioTs,\n            videoTsToSeconds,\n            audioTsToSeconds,\n            audioTsToVideoTs,\n            videoTsToAudioTs,\n            metadataTsToSeconds;\n        secondsToVideoTs = function (seconds) {\n            return seconds * ONE_SECOND_IN_TS$4;\n        };\n        secondsToAudioTs = function (seconds, sampleRate) {\n            return seconds * sampleRate;\n        };\n        videoTsToSeconds = function (timestamp) {\n            return timestamp / ONE_SECOND_IN_TS$4;\n        };\n        audioTsToSeconds = function (timestamp, sampleRate) {\n            return timestamp / sampleRate;\n        };\n        audioTsToVideoTs = function (timestamp, sampleRate) {\n            return secondsToVideoTs(audioTsToSeconds(timestamp, sampleRate));\n        };\n        videoTsToAudioTs = function (timestamp, sampleRate) {\n            return secondsToAudioTs(videoTsToSeconds(timestamp), sampleRate);\n        };\n        /**\n         * Adjust ID3 tag or caption timing information by the timeline pts values\n         * (if keepOriginalTimestamps is false) and convert to seconds\n         */\n\n        metadataTsToSeconds = function (timestamp, timelineStartPts, keepOriginalTimestamps) {\n            return videoTsToSeconds(keepOriginalTimestamps ? timestamp : timestamp - timelineStartPts);\n        };\n        var clock$2 = {\n            ONE_SECOND_IN_TS: ONE_SECOND_IN_TS$4,\n            secondsToVideoTs: secondsToVideoTs,\n            secondsToAudioTs: secondsToAudioTs,\n            videoTsToSeconds: videoTsToSeconds,\n            audioTsToSeconds: audioTsToSeconds,\n            audioTsToVideoTs: audioTsToVideoTs,\n            videoTsToAudioTs: videoTsToAudioTs,\n            metadataTsToSeconds: metadataTsToSeconds\n        };\n        /**\n         * mux.js\n         *\n         * Copyright (c) Brightcove\n         * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE\n         */\n\n        var coneOfSilence = silence_1;\n        var clock$1 = clock$2;\n        /**\n         * Sum the `byteLength` properties of the data in each AAC frame\n         */\n\n        var sumFrameByteLengths = function (array) {\n            var i,\n                currentObj,\n                sum = 0; // sum the byteLength's all each nal unit in the frame\n\n            for (i = 0; i < array.length; i++) {\n                currentObj = array[i];\n                sum += currentObj.data.byteLength;\n            }\n            return sum;\n        }; // Possibly pad (prefix) the audio track with silence if appending this track\n        // would lead to the introduction of a gap in the audio buffer\n\n        var prefixWithSilence = function (track, frames, audioAppendStartTs, videoBaseMediaDecodeTime) {\n            var baseMediaDecodeTimeTs,\n                frameDuration = 0,\n                audioGapDuration = 0,\n                audioFillFrameCount = 0,\n                audioFillDuration = 0,\n                silentFrame,\n                i,\n                firstFrame;\n            if (!frames.length) {\n                return;\n            }\n            baseMediaDecodeTimeTs = clock$1.audioTsToVideoTs(track.baseMediaDecodeTime, track.samplerate); // determine frame clock duration based on sample rate, round up to avoid overfills\n\n            frameDuration = Math.ceil(clock$1.ONE_SECOND_IN_TS / (track.samplerate / 1024));\n            if (audioAppendStartTs && videoBaseMediaDecodeTime) {\n                // insert the shortest possible amount (audio gap or audio to video gap)\n                audioGapDuration = baseMediaDecodeTimeTs - Math.max(audioAppendStartTs, videoBaseMediaDecodeTime); // number of full frames in the audio gap\n\n                audioFillFrameCount = Math.floor(audioGapDuration / frameDuration);\n                audioFillDuration = audioFillFrameCount * frameDuration;\n            } // don't attempt to fill gaps smaller than a single frame or larger\n            // than a half second\n\n            if (audioFillFrameCount < 1 || audioFillDuration > clock$1.ONE_SECOND_IN_TS / 2) {\n                return;\n            }\n            silentFrame = coneOfSilence()[track.samplerate];\n            if (!silentFrame) {\n                // we don't have a silent frame pregenerated for the sample rate, so use a frame\n                // from the content instead\n                silentFrame = frames[0].data;\n            }\n            for (i = 0; i < audioFillFrameCount; i++) {\n                firstFrame = frames[0];\n                frames.splice(0, 0, {\n                    data: silentFrame,\n                    dts: firstFrame.dts - frameDuration,\n                    pts: firstFrame.pts - frameDuration\n                });\n            }\n            track.baseMediaDecodeTime -= Math.floor(clock$1.videoTsToAudioTs(audioFillDuration, track.samplerate));\n            return audioFillDuration;\n        }; // If the audio segment extends before the earliest allowed dts\n        // value, remove AAC frames until starts at or after the earliest\n        // allowed DTS so that we don't end up with a negative baseMedia-\n        // DecodeTime for the audio track\n\n        var trimAdtsFramesByEarliestDts = function (adtsFrames, track, earliestAllowedDts) {\n            if (track.minSegmentDts >= earliestAllowedDts) {\n                return adtsFrames;\n            } // We will need to recalculate the earliest segment Dts\n\n            track.minSegmentDts = Infinity;\n            return adtsFrames.filter(function (currentFrame) {\n                // If this is an allowed frame, keep it and record it's Dts\n                if (currentFrame.dts >= earliestAllowedDts) {\n                    track.minSegmentDts = Math.min(track.minSegmentDts, currentFrame.dts);\n                    track.minSegmentPts = track.minSegmentDts;\n                    return true;\n                } // Otherwise, discard it\n\n                return false;\n            });\n        }; // generate the track's raw mdat data from an array of frames\n\n        var generateSampleTable = function (frames) {\n            var i,\n                currentFrame,\n                samples = [];\n            for (i = 0; i < frames.length; i++) {\n                currentFrame = frames[i];\n                samples.push({\n                    size: currentFrame.data.byteLength,\n                    duration: 1024 // For AAC audio, all samples contain 1024 samples\n                });\n            }\n\n            return samples;\n        }; // generate the track's sample table from an array of frames\n\n        var concatenateFrameData = function (frames) {\n            var i,\n                currentFrame,\n                dataOffset = 0,\n                data = new Uint8Array(sumFrameByteLengths(frames));\n            for (i = 0; i < frames.length; i++) {\n                currentFrame = frames[i];\n                data.set(currentFrame.data, dataOffset);\n                dataOffset += currentFrame.data.byteLength;\n            }\n            return data;\n        };\n        var audioFrameUtils$1 = {\n            prefixWithSilence: prefixWithSilence,\n            trimAdtsFramesByEarliestDts: trimAdtsFramesByEarliestDts,\n            generateSampleTable: generateSampleTable,\n            concatenateFrameData: concatenateFrameData\n        };\n        /**\n         * mux.js\n         *\n         * Copyright (c) Brightcove\n         * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE\n         */\n\n        var ONE_SECOND_IN_TS$3 = clock$2.ONE_SECOND_IN_TS;\n        /**\n         * Store information about the start and end of the track and the\n         * duration for each frame/sample we process in order to calculate\n         * the baseMediaDecodeTime\n         */\n\n        var collectDtsInfo = function (track, data) {\n            if (typeof data.pts === 'number') {\n                if (track.timelineStartInfo.pts === undefined) {\n                    track.timelineStartInfo.pts = data.pts;\n                }\n                if (track.minSegmentPts === undefined) {\n                    track.minSegmentPts = data.pts;\n                } else {\n                    track.minSegmentPts = Math.min(track.minSegmentPts, data.pts);\n                }\n                if (track.maxSegmentPts === undefined) {\n                    track.maxSegmentPts = data.pts;\n                } else {\n                    track.maxSegmentPts = Math.max(track.maxSegmentPts, data.pts);\n                }\n            }\n            if (typeof data.dts === 'number') {\n                if (track.timelineStartInfo.dts === undefined) {\n                    track.timelineStartInfo.dts = data.dts;\n                }\n                if (track.minSegmentDts === undefined) {\n                    track.minSegmentDts = data.dts;\n                } else {\n                    track.minSegmentDts = Math.min(track.minSegmentDts, data.dts);\n                }\n                if (track.maxSegmentDts === undefined) {\n                    track.maxSegmentDts = data.dts;\n                } else {\n                    track.maxSegmentDts = Math.max(track.maxSegmentDts, data.dts);\n                }\n            }\n        };\n        /**\n         * Clear values used to calculate the baseMediaDecodeTime between\n         * tracks\n         */\n\n        var clearDtsInfo = function (track) {\n            delete track.minSegmentDts;\n            delete track.maxSegmentDts;\n            delete track.minSegmentPts;\n            delete track.maxSegmentPts;\n        };\n        /**\n         * Calculate the track's baseMediaDecodeTime based on the earliest\n         * DTS the transmuxer has ever seen and the minimum DTS for the\n         * current track\n         * @param track {object} track metadata configuration\n         * @param keepOriginalTimestamps {boolean} If true, keep the timestamps\n         *        in the source; false to adjust the first segment to start at 0.\n         */\n\n        var calculateTrackBaseMediaDecodeTime = function (track, keepOriginalTimestamps) {\n            var baseMediaDecodeTime,\n                scale,\n                minSegmentDts = track.minSegmentDts; // Optionally adjust the time so the first segment starts at zero.\n\n            if (!keepOriginalTimestamps) {\n                minSegmentDts -= track.timelineStartInfo.dts;\n            } // track.timelineStartInfo.baseMediaDecodeTime is the location, in time, where\n            // we want the start of the first segment to be placed\n\n            baseMediaDecodeTime = track.timelineStartInfo.baseMediaDecodeTime; // Add to that the distance this segment is from the very first\n\n            baseMediaDecodeTime += minSegmentDts; // baseMediaDecodeTime must not become negative\n\n            baseMediaDecodeTime = Math.max(0, baseMediaDecodeTime);\n            if (track.type === 'audio') {\n                // Audio has a different clock equal to the sampling_rate so we need to\n                // scale the PTS values into the clock rate of the track\n                scale = track.samplerate / ONE_SECOND_IN_TS$3;\n                baseMediaDecodeTime *= scale;\n                baseMediaDecodeTime = Math.floor(baseMediaDecodeTime);\n            }\n            return baseMediaDecodeTime;\n        };\n        var trackDecodeInfo$1 = {\n            clearDtsInfo: clearDtsInfo,\n            calculateTrackBaseMediaDecodeTime: calculateTrackBaseMediaDecodeTime,\n            collectDtsInfo: collectDtsInfo\n        };\n        /**\n         * mux.js\n         *\n         * Copyright (c) Brightcove\n         * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE\n         *\n         * Reads in-band caption information from a video elementary\n         * stream. Captions must follow the CEA-708 standard for injection\n         * into an MPEG-2 transport streams.\n         * @see https://en.wikipedia.org/wiki/CEA-708\n         * @see https://www.gpo.gov/fdsys/pkg/CFR-2007-title47-vol1/pdf/CFR-2007-title47-vol1-sec15-119.pdf\n         */\n            // payload type field to indicate how they are to be\n            // interpreted. CEAS-708 caption content is always transmitted with\n            // payload type 0x04.\n\n        var USER_DATA_REGISTERED_ITU_T_T35 = 4,\n            RBSP_TRAILING_BITS = 128;\n        /**\n         * Parse a supplemental enhancement information (SEI) NAL unit.\n         * Stops parsing once a message of type ITU T T35 has been found.\n         *\n         * @param bytes {Uint8Array} the bytes of a SEI NAL unit\n         * @return {object} the parsed SEI payload\n         * @see Rec. ITU-T H.264, 7.3.2.3.1\n         */\n\n        var parseSei = function (bytes) {\n            var i = 0,\n                result = {\n                    payloadType: -1,\n                    payloadSize: 0\n                },\n                payloadType = 0,\n                payloadSize = 0; // go through the sei_rbsp parsing each each individual sei_message\n\n            while (i < bytes.byteLength) {\n                // stop once we have hit the end of the sei_rbsp\n                if (bytes[i] === RBSP_TRAILING_BITS) {\n                    break;\n                } // Parse payload type\n\n                while (bytes[i] === 0xFF) {\n                    payloadType += 255;\n                    i++;\n                }\n                payloadType += bytes[i++]; // Parse payload size\n\n                while (bytes[i] === 0xFF) {\n                    payloadSize += 255;\n                    i++;\n                }\n                payloadSize += bytes[i++]; // this sei_message is a 608/708 caption so save it and break\n                // there can only ever be one caption message in a frame's sei\n\n                if (!result.payload && payloadType === USER_DATA_REGISTERED_ITU_T_T35) {\n                    var userIdentifier = String.fromCharCode(bytes[i + 3], bytes[i + 4], bytes[i + 5], bytes[i + 6]);\n                    if (userIdentifier === 'GA94') {\n                        result.payloadType = payloadType;\n                        result.payloadSize = payloadSize;\n                        result.payload = bytes.subarray(i, i + payloadSize);\n                        break;\n                    } else {\n                        result.payload = void 0;\n                    }\n                } // skip the payload and parse the next message\n\n                i += payloadSize;\n                payloadType = 0;\n                payloadSize = 0;\n            }\n            return result;\n        }; // see ANSI/SCTE 128-1 (2013), section 8.1\n\n        var parseUserData = function (sei) {\n            // itu_t_t35_contry_code must be 181 (United States) for\n            // captions\n            if (sei.payload[0] !== 181) {\n                return null;\n            } // itu_t_t35_provider_code should be 49 (ATSC) for captions\n\n            if ((sei.payload[1] << 8 | sei.payload[2]) !== 49) {\n                return null;\n            } // the user_identifier should be \"GA94\" to indicate ATSC1 data\n\n            if (String.fromCharCode(sei.payload[3], sei.payload[4], sei.payload[5], sei.payload[6]) !== 'GA94') {\n                return null;\n            } // finally, user_data_type_code should be 0x03 for caption data\n\n            if (sei.payload[7] !== 0x03) {\n                return null;\n            } // return the user_data_type_structure and strip the trailing\n            // marker bits\n\n            return sei.payload.subarray(8, sei.payload.length - 1);\n        }; // see CEA-708-D, section 4.4\n\n        var parseCaptionPackets = function (pts, userData) {\n            var results = [],\n                i,\n                count,\n                offset,\n                data; // if this is just filler, return immediately\n\n            if (!(userData[0] & 0x40)) {\n                return results;\n            } // parse out the cc_data_1 and cc_data_2 fields\n\n            count = userData[0] & 0x1f;\n            for (i = 0; i < count; i++) {\n                offset = i * 3;\n                data = {\n                    type: userData[offset + 2] & 0x03,\n                    pts: pts\n                }; // capture cc data when cc_valid is 1\n\n                if (userData[offset + 2] & 0x04) {\n                    data.ccData = userData[offset + 3] << 8 | userData[offset + 4];\n                    results.push(data);\n                }\n            }\n            return results;\n        };\n        var discardEmulationPreventionBytes$1 = function (data) {\n            var length = data.byteLength,\n                emulationPreventionBytesPositions = [],\n                i = 1,\n                newLength,\n                newData; // Find all `Emulation Prevention Bytes`\n\n            while (i < length - 2) {\n                if (data[i] === 0 && data[i + 1] === 0 && data[i + 2] === 0x03) {\n                    emulationPreventionBytesPositions.push(i + 2);\n                    i += 2;\n                } else {\n                    i++;\n                }\n            } // If no Emulation Prevention Bytes were found just return the original\n            // array\n\n            if (emulationPreventionBytesPositions.length === 0) {\n                return data;\n            } // Create a new array to hold the NAL unit data\n\n            newLength = length - emulationPreventionBytesPositions.length;\n            newData = new Uint8Array(newLength);\n            var sourceIndex = 0;\n            for (i = 0; i < newLength; sourceIndex++, i++) {\n                if (sourceIndex === emulationPreventionBytesPositions[0]) {\n                    // Skip this byte\n                    sourceIndex++; // Remove this position index\n\n                    emulationPreventionBytesPositions.shift();\n                }\n                newData[i] = data[sourceIndex];\n            }\n            return newData;\n        }; // exports\n\n        var captionPacketParser = {\n            parseSei: parseSei,\n            parseUserData: parseUserData,\n            parseCaptionPackets: parseCaptionPackets,\n            discardEmulationPreventionBytes: discardEmulationPreventionBytes$1,\n            USER_DATA_REGISTERED_ITU_T_T35: USER_DATA_REGISTERED_ITU_T_T35\n        };\n        /**\n         * mux.js\n         *\n         * Copyright (c) Brightcove\n         * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE\n         *\n         * Reads in-band caption information from a video elementary\n         * stream. Captions must follow the CEA-708 standard for injection\n         * into an MPEG-2 transport streams.\n         * @see https://en.wikipedia.org/wiki/CEA-708\n         * @see https://www.gpo.gov/fdsys/pkg/CFR-2007-title47-vol1/pdf/CFR-2007-title47-vol1-sec15-119.pdf\n         */\n            // Link To Transport\n            // -----------------\n\n        var Stream$7 = stream;\n        var cea708Parser = captionPacketParser;\n        var CaptionStream$2 = function (options) {\n            options = options || {};\n            CaptionStream$2.prototype.init.call(this); // parse708captions flag, default to true\n\n            this.parse708captions_ = typeof options.parse708captions === 'boolean' ? options.parse708captions : true;\n            this.captionPackets_ = [];\n            this.ccStreams_ = [new Cea608Stream(0, 0),\n                // eslint-disable-line no-use-before-define\n                new Cea608Stream(0, 1),\n                // eslint-disable-line no-use-before-define\n                new Cea608Stream(1, 0),\n                // eslint-disable-line no-use-before-define\n                new Cea608Stream(1, 1) // eslint-disable-line no-use-before-define\n            ];\n\n            if (this.parse708captions_) {\n                this.cc708Stream_ = new Cea708Stream({\n                    captionServices: options.captionServices\n                }); // eslint-disable-line no-use-before-define\n            }\n\n            this.reset(); // forward data and done events from CCs to this CaptionStream\n\n            this.ccStreams_.forEach(function (cc) {\n                cc.on('data', this.trigger.bind(this, 'data'));\n                cc.on('partialdone', this.trigger.bind(this, 'partialdone'));\n                cc.on('done', this.trigger.bind(this, 'done'));\n            }, this);\n            if (this.parse708captions_) {\n                this.cc708Stream_.on('data', this.trigger.bind(this, 'data'));\n                this.cc708Stream_.on('partialdone', this.trigger.bind(this, 'partialdone'));\n                this.cc708Stream_.on('done', this.trigger.bind(this, 'done'));\n            }\n        };\n        CaptionStream$2.prototype = new Stream$7();\n        CaptionStream$2.prototype.push = function (event) {\n            var sei, userData, newCaptionPackets; // only examine SEI NALs\n\n            if (event.nalUnitType !== 'sei_rbsp') {\n                return;\n            } // parse the sei\n\n            sei = cea708Parser.parseSei(event.escapedRBSP); // no payload data, skip\n\n            if (!sei.payload) {\n                return;\n            } // ignore everything but user_data_registered_itu_t_t35\n\n            if (sei.payloadType !== cea708Parser.USER_DATA_REGISTERED_ITU_T_T35) {\n                return;\n            } // parse out the user data payload\n\n            userData = cea708Parser.parseUserData(sei); // ignore unrecognized userData\n\n            if (!userData) {\n                return;\n            } // Sometimes, the same segment # will be downloaded twice. To stop the\n            // caption data from being processed twice, we track the latest dts we've\n            // received and ignore everything with a dts before that. However, since\n            // data for a specific dts can be split across packets on either side of\n            // a segment boundary, we need to make sure we *don't* ignore the packets\n            // from the *next* segment that have dts === this.latestDts_. By constantly\n            // tracking the number of packets received with dts === this.latestDts_, we\n            // know how many should be ignored once we start receiving duplicates.\n\n            if (event.dts < this.latestDts_) {\n                // We've started getting older data, so set the flag.\n                this.ignoreNextEqualDts_ = true;\n                return;\n            } else if (event.dts === this.latestDts_ && this.ignoreNextEqualDts_) {\n                this.numSameDts_--;\n                if (!this.numSameDts_) {\n                    // We've received the last duplicate packet, time to start processing again\n                    this.ignoreNextEqualDts_ = false;\n                }\n                return;\n            } // parse out CC data packets and save them for later\n\n            newCaptionPackets = cea708Parser.parseCaptionPackets(event.pts, userData);\n            this.captionPackets_ = this.captionPackets_.concat(newCaptionPackets);\n            if (this.latestDts_ !== event.dts) {\n                this.numSameDts_ = 0;\n            }\n            this.numSameDts_++;\n            this.latestDts_ = event.dts;\n        };\n        CaptionStream$2.prototype.flushCCStreams = function (flushType) {\n            this.ccStreams_.forEach(function (cc) {\n                return flushType === 'flush' ? cc.flush() : cc.partialFlush();\n            }, this);\n        };\n        CaptionStream$2.prototype.flushStream = function (flushType) {\n            // make sure we actually parsed captions before proceeding\n            if (!this.captionPackets_.length) {\n                this.flushCCStreams(flushType);\n                return;\n            } // In Chrome, the Array#sort function is not stable so add a\n            // presortIndex that we can use to ensure we get a stable-sort\n\n            this.captionPackets_.forEach(function (elem, idx) {\n                elem.presortIndex = idx;\n            }); // sort caption byte-pairs based on their PTS values\n\n            this.captionPackets_.sort(function (a, b) {\n                if (a.pts === b.pts) {\n                    return a.presortIndex - b.presortIndex;\n                }\n                return a.pts - b.pts;\n            });\n            this.captionPackets_.forEach(function (packet) {\n                if (packet.type < 2) {\n                    // Dispatch packet to the right Cea608Stream\n                    this.dispatchCea608Packet(packet);\n                } else {\n                    // Dispatch packet to the Cea708Stream\n                    this.dispatchCea708Packet(packet);\n                }\n            }, this);\n            this.captionPackets_.length = 0;\n            this.flushCCStreams(flushType);\n        };\n        CaptionStream$2.prototype.flush = function () {\n            return this.flushStream('flush');\n        }; // Only called if handling partial data\n\n        CaptionStream$2.prototype.partialFlush = function () {\n            return this.flushStream('partialFlush');\n        };\n        CaptionStream$2.prototype.reset = function () {\n            this.latestDts_ = null;\n            this.ignoreNextEqualDts_ = false;\n            this.numSameDts_ = 0;\n            this.activeCea608Channel_ = [null, null];\n            this.ccStreams_.forEach(function (ccStream) {\n                ccStream.reset();\n            });\n        }; // From the CEA-608 spec:\n\n        /*\n     * When XDS sub-packets are interleaved with other services, the end of each sub-packet shall be followed\n     * by a control pair to change to a different service. When any of the control codes from 0x10 to 0x1F is\n     * used to begin a control code pair, it indicates the return to captioning or Text data. The control code pair\n     * and subsequent data should then be processed according to the FCC rules. It may be necessary for the\n     * line 21 data encoder to automatically insert a control code pair (i.e. RCL, RU2, RU3, RU4, RDC, or RTD)\n     * to switch to captioning or Text.\n    */\n        // With that in mind, we ignore any data between an XDS control code and a\n        // subsequent closed-captioning control code.\n\n        CaptionStream$2.prototype.dispatchCea608Packet = function (packet) {\n            // NOTE: packet.type is the CEA608 field\n            if (this.setsTextOrXDSActive(packet)) {\n                this.activeCea608Channel_[packet.type] = null;\n            } else if (this.setsChannel1Active(packet)) {\n                this.activeCea608Channel_[packet.type] = 0;\n            } else if (this.setsChannel2Active(packet)) {\n                this.activeCea608Channel_[packet.type] = 1;\n            }\n            if (this.activeCea608Channel_[packet.type] === null) {\n                // If we haven't received anything to set the active channel, or the\n                // packets are Text/XDS data, discard the data; we don't want jumbled\n                // captions\n                return;\n            }\n            this.ccStreams_[(packet.type << 1) + this.activeCea608Channel_[packet.type]].push(packet);\n        };\n        CaptionStream$2.prototype.setsChannel1Active = function (packet) {\n            return (packet.ccData & 0x7800) === 0x1000;\n        };\n        CaptionStream$2.prototype.setsChannel2Active = function (packet) {\n            return (packet.ccData & 0x7800) === 0x1800;\n        };\n        CaptionStream$2.prototype.setsTextOrXDSActive = function (packet) {\n            return (packet.ccData & 0x7100) === 0x0100 || (packet.ccData & 0x78fe) === 0x102a || (packet.ccData & 0x78fe) === 0x182a;\n        };\n        CaptionStream$2.prototype.dispatchCea708Packet = function (packet) {\n            if (this.parse708captions_) {\n                this.cc708Stream_.push(packet);\n            }\n        }; // ----------------------\n        // Session to Application\n        // ----------------------\n        // This hash maps special and extended character codes to their\n        // proper Unicode equivalent. The first one-byte key is just a\n        // non-standard character code. The two-byte keys that follow are\n        // the extended CEA708 character codes, along with the preceding\n        // 0x10 extended character byte to distinguish these codes from\n        // non-extended character codes. Every CEA708 character code that\n        // is not in this object maps directly to a standard unicode\n        // character code.\n        // The transparent space and non-breaking transparent space are\n        // technically not fully supported since there is no code to\n        // make them transparent, so they have normal non-transparent\n        // stand-ins.\n        // The special closed caption (CC) character isn't a standard\n        // unicode character, so a fairly similar unicode character was\n        // chosen in it's place.\n\n        var CHARACTER_TRANSLATION_708 = {\n            0x7f: 0x266a,\n            // ♪\n            0x1020: 0x20,\n            // Transparent Space\n            0x1021: 0xa0,\n            // Nob-breaking Transparent Space\n            0x1025: 0x2026,\n            // …\n            0x102a: 0x0160,\n            // Š\n            0x102c: 0x0152,\n            // Œ\n            0x1030: 0x2588,\n            // █\n            0x1031: 0x2018,\n            // ‘\n            0x1032: 0x2019,\n            // ’\n            0x1033: 0x201c,\n            // “\n            0x1034: 0x201d,\n            // ”\n            0x1035: 0x2022,\n            // •\n            0x1039: 0x2122,\n            // ™\n            0x103a: 0x0161,\n            // š\n            0x103c: 0x0153,\n            // œ\n            0x103d: 0x2120,\n            // ℠\n            0x103f: 0x0178,\n            // Ÿ\n            0x1076: 0x215b,\n            // ⅛\n            0x1077: 0x215c,\n            // ⅜\n            0x1078: 0x215d,\n            // ⅝\n            0x1079: 0x215e,\n            // ⅞\n            0x107a: 0x23d0,\n            // ⏐\n            0x107b: 0x23a4,\n            // ⎤\n            0x107c: 0x23a3,\n            // ⎣\n            0x107d: 0x23af,\n            // ⎯\n            0x107e: 0x23a6,\n            // ⎦\n            0x107f: 0x23a1,\n            // ⎡\n            0x10a0: 0x3138 // ㄸ (CC char)\n        };\n\n        var get708CharFromCode = function (code) {\n            var newCode = CHARACTER_TRANSLATION_708[code] || code;\n            if (code & 0x1000 && code === newCode) {\n                // Invalid extended code\n                return '';\n            }\n            return String.fromCharCode(newCode);\n        };\n        var within708TextBlock = function (b) {\n            return 0x20 <= b && b <= 0x7f || 0xa0 <= b && b <= 0xff;\n        };\n        var Cea708Window = function (windowNum) {\n            this.windowNum = windowNum;\n            this.reset();\n        };\n        Cea708Window.prototype.reset = function () {\n            this.clearText();\n            this.pendingNewLine = false;\n            this.winAttr = {};\n            this.penAttr = {};\n            this.penLoc = {};\n            this.penColor = {}; // These default values are arbitrary,\n            // defineWindow will usually override them\n\n            this.visible = 0;\n            this.rowLock = 0;\n            this.columnLock = 0;\n            this.priority = 0;\n            this.relativePositioning = 0;\n            this.anchorVertical = 0;\n            this.anchorHorizontal = 0;\n            this.anchorPoint = 0;\n            this.rowCount = 1;\n            this.virtualRowCount = this.rowCount + 1;\n            this.columnCount = 41;\n            this.windowStyle = 0;\n            this.penStyle = 0;\n        };\n        Cea708Window.prototype.getText = function () {\n            return this.rows.join('\\n');\n        };\n        Cea708Window.prototype.clearText = function () {\n            this.rows = [''];\n            this.rowIdx = 0;\n        };\n        Cea708Window.prototype.newLine = function (pts) {\n            if (this.rows.length >= this.virtualRowCount && typeof this.beforeRowOverflow === 'function') {\n                this.beforeRowOverflow(pts);\n            }\n            if (this.rows.length > 0) {\n                this.rows.push('');\n                this.rowIdx++;\n            } // Show all virtual rows since there's no visible scrolling\n\n            while (this.rows.length > this.virtualRowCount) {\n                this.rows.shift();\n                this.rowIdx--;\n            }\n        };\n        Cea708Window.prototype.isEmpty = function () {\n            if (this.rows.length === 0) {\n                return true;\n            } else if (this.rows.length === 1) {\n                return this.rows[0] === '';\n            }\n            return false;\n        };\n        Cea708Window.prototype.addText = function (text) {\n            this.rows[this.rowIdx] += text;\n        };\n        Cea708Window.prototype.backspace = function () {\n            if (!this.isEmpty()) {\n                var row = this.rows[this.rowIdx];\n                this.rows[this.rowIdx] = row.substr(0, row.length - 1);\n            }\n        };\n        var Cea708Service = function (serviceNum, encoding, stream) {\n            this.serviceNum = serviceNum;\n            this.text = '';\n            this.currentWindow = new Cea708Window(-1);\n            this.windows = [];\n            this.stream = stream; // Try to setup a TextDecoder if an `encoding` value was provided\n\n            if (typeof encoding === 'string') {\n                this.createTextDecoder(encoding);\n            }\n        };\n        /**\n         * Initialize service windows\n         * Must be run before service use\n         *\n         * @param  {Integer}  pts               PTS value\n         * @param  {Function} beforeRowOverflow Function to execute before row overflow of a window\n         */\n\n        Cea708Service.prototype.init = function (pts, beforeRowOverflow) {\n            this.startPts = pts;\n            for (var win = 0; win < 8; win++) {\n                this.windows[win] = new Cea708Window(win);\n                if (typeof beforeRowOverflow === 'function') {\n                    this.windows[win].beforeRowOverflow = beforeRowOverflow;\n                }\n            }\n        };\n        /**\n         * Set current window of service to be affected by commands\n         *\n         * @param  {Integer} windowNum Window number\n         */\n\n        Cea708Service.prototype.setCurrentWindow = function (windowNum) {\n            this.currentWindow = this.windows[windowNum];\n        };\n        /**\n         * Try to create a TextDecoder if it is natively supported\n         */\n\n        Cea708Service.prototype.createTextDecoder = function (encoding) {\n            if (typeof TextDecoder === 'undefined') {\n                this.stream.trigger('log', {\n                    level: 'warn',\n                    message: 'The `encoding` option is unsupported without TextDecoder support'\n                });\n            } else {\n                try {\n                    this.textDecoder_ = new TextDecoder(encoding);\n                } catch (error) {\n                    this.stream.trigger('log', {\n                        level: 'warn',\n                        message: 'TextDecoder could not be created with ' + encoding + ' encoding. ' + error\n                    });\n                }\n            }\n        };\n        var Cea708Stream = function (options) {\n            options = options || {};\n            Cea708Stream.prototype.init.call(this);\n            var self = this;\n            var captionServices = options.captionServices || {};\n            var captionServiceEncodings = {};\n            var serviceProps; // Get service encodings from captionServices option block\n\n            Object.keys(captionServices).forEach(serviceName => {\n                serviceProps = captionServices[serviceName];\n                if (/^SERVICE/.test(serviceName)) {\n                    captionServiceEncodings[serviceName] = serviceProps.encoding;\n                }\n            });\n            this.serviceEncodings = captionServiceEncodings;\n            this.current708Packet = null;\n            this.services = {};\n            this.push = function (packet) {\n                if (packet.type === 3) {\n                    // 708 packet start\n                    self.new708Packet();\n                    self.add708Bytes(packet);\n                } else {\n                    if (self.current708Packet === null) {\n                        // This should only happen at the start of a file if there's no packet start.\n                        self.new708Packet();\n                    }\n                    self.add708Bytes(packet);\n                }\n            };\n        };\n        Cea708Stream.prototype = new Stream$7();\n        /**\n         * Push current 708 packet, create new 708 packet.\n         */\n\n        Cea708Stream.prototype.new708Packet = function () {\n            if (this.current708Packet !== null) {\n                this.push708Packet();\n            }\n            this.current708Packet = {\n                data: [],\n                ptsVals: []\n            };\n        };\n        /**\n         * Add pts and both bytes from packet into current 708 packet.\n         */\n\n        Cea708Stream.prototype.add708Bytes = function (packet) {\n            var data = packet.ccData;\n            var byte0 = data >>> 8;\n            var byte1 = data & 0xff; // I would just keep a list of packets instead of bytes, but it isn't clear in the spec\n            // that service blocks will always line up with byte pairs.\n\n            this.current708Packet.ptsVals.push(packet.pts);\n            this.current708Packet.data.push(byte0);\n            this.current708Packet.data.push(byte1);\n        };\n        /**\n         * Parse completed 708 packet into service blocks and push each service block.\n         */\n\n        Cea708Stream.prototype.push708Packet = function () {\n            var packet708 = this.current708Packet;\n            var packetData = packet708.data;\n            var serviceNum = null;\n            var blockSize = null;\n            var i = 0;\n            var b = packetData[i++];\n            packet708.seq = b >> 6;\n            packet708.sizeCode = b & 0x3f; // 0b00111111;\n\n            for (; i < packetData.length; i++) {\n                b = packetData[i++];\n                serviceNum = b >> 5;\n                blockSize = b & 0x1f; // 0b00011111\n\n                if (serviceNum === 7 && blockSize > 0) {\n                    // Extended service num\n                    b = packetData[i++];\n                    serviceNum = b;\n                }\n                this.pushServiceBlock(serviceNum, i, blockSize);\n                if (blockSize > 0) {\n                    i += blockSize - 1;\n                }\n            }\n        };\n        /**\n         * Parse service block, execute commands, read text.\n         *\n         * Note: While many of these commands serve important purposes,\n         * many others just parse out the parameters or attributes, but\n         * nothing is done with them because this is not a full and complete\n         * implementation of the entire 708 spec.\n         *\n         * @param  {Integer} serviceNum Service number\n         * @param  {Integer} start      Start index of the 708 packet data\n         * @param  {Integer} size       Block size\n         */\n\n        Cea708Stream.prototype.pushServiceBlock = function (serviceNum, start, size) {\n            var b;\n            var i = start;\n            var packetData = this.current708Packet.data;\n            var service = this.services[serviceNum];\n            if (!service) {\n                service = this.initService(serviceNum, i);\n            }\n            for (; i < start + size && i < packetData.length; i++) {\n                b = packetData[i];\n                if (within708TextBlock(b)) {\n                    i = this.handleText(i, service);\n                } else if (b === 0x18) {\n                    i = this.multiByteCharacter(i, service);\n                } else if (b === 0x10) {\n                    i = this.extendedCommands(i, service);\n                } else if (0x80 <= b && b <= 0x87) {\n                    i = this.setCurrentWindow(i, service);\n                } else if (0x98 <= b && b <= 0x9f) {\n                    i = this.defineWindow(i, service);\n                } else if (b === 0x88) {\n                    i = this.clearWindows(i, service);\n                } else if (b === 0x8c) {\n                    i = this.deleteWindows(i, service);\n                } else if (b === 0x89) {\n                    i = this.displayWindows(i, service);\n                } else if (b === 0x8a) {\n                    i = this.hideWindows(i, service);\n                } else if (b === 0x8b) {\n                    i = this.toggleWindows(i, service);\n                } else if (b === 0x97) {\n                    i = this.setWindowAttributes(i, service);\n                } else if (b === 0x90) {\n                    i = this.setPenAttributes(i, service);\n                } else if (b === 0x91) {\n                    i = this.setPenColor(i, service);\n                } else if (b === 0x92) {\n                    i = this.setPenLocation(i, service);\n                } else if (b === 0x8f) {\n                    service = this.reset(i, service);\n                } else if (b === 0x08) {\n                    // BS: Backspace\n                    service.currentWindow.backspace();\n                } else if (b === 0x0c) {\n                    // FF: Form feed\n                    service.currentWindow.clearText();\n                } else if (b === 0x0d) {\n                    // CR: Carriage return\n                    service.currentWindow.pendingNewLine = true;\n                } else if (b === 0x0e) {\n                    // HCR: Horizontal carriage return\n                    service.currentWindow.clearText();\n                } else if (b === 0x8d) {\n                    // DLY: Delay, nothing to do\n                    i++;\n                } else ;\n            }\n        };\n        /**\n         * Execute an extended command\n         *\n         * @param  {Integer} i        Current index in the 708 packet\n         * @param  {Service} service  The service object to be affected\n         * @return {Integer}          New index after parsing\n         */\n\n        Cea708Stream.prototype.extendedCommands = function (i, service) {\n            var packetData = this.current708Packet.data;\n            var b = packetData[++i];\n            if (within708TextBlock(b)) {\n                i = this.handleText(i, service, {\n                    isExtended: true\n                });\n            }\n            return i;\n        };\n        /**\n         * Get PTS value of a given byte index\n         *\n         * @param  {Integer} byteIndex  Index of the byte\n         * @return {Integer}            PTS\n         */\n\n        Cea708Stream.prototype.getPts = function (byteIndex) {\n            // There's 1 pts value per 2 bytes\n            return this.current708Packet.ptsVals[Math.floor(byteIndex / 2)];\n        };\n        /**\n         * Initializes a service\n         *\n         * @param  {Integer} serviceNum Service number\n         * @return {Service}            Initialized service object\n         */\n\n        Cea708Stream.prototype.initService = function (serviceNum, i) {\n            var serviceName = 'SERVICE' + serviceNum;\n            var self = this;\n            var serviceName;\n            var encoding;\n            if (serviceName in this.serviceEncodings) {\n                encoding = this.serviceEncodings[serviceName];\n            }\n            this.services[serviceNum] = new Cea708Service(serviceNum, encoding, self);\n            this.services[serviceNum].init(this.getPts(i), function (pts) {\n                self.flushDisplayed(pts, self.services[serviceNum]);\n            });\n            return this.services[serviceNum];\n        };\n        /**\n         * Execute text writing to current window\n         *\n         * @param  {Integer} i        Current index in the 708 packet\n         * @param  {Service} service  The service object to be affected\n         * @return {Integer}          New index after parsing\n         */\n\n        Cea708Stream.prototype.handleText = function (i, service, options) {\n            var isExtended = options && options.isExtended;\n            var isMultiByte = options && options.isMultiByte;\n            var packetData = this.current708Packet.data;\n            var extended = isExtended ? 0x1000 : 0x0000;\n            var currentByte = packetData[i];\n            var nextByte = packetData[i + 1];\n            var win = service.currentWindow;\n            var char;\n            var charCodeArray; // Use the TextDecoder if one was created for this service\n\n            if (service.textDecoder_ && !isExtended) {\n                if (isMultiByte) {\n                    charCodeArray = [currentByte, nextByte];\n                    i++;\n                } else {\n                    charCodeArray = [currentByte];\n                }\n                char = service.textDecoder_.decode(new Uint8Array(charCodeArray));\n            } else {\n                char = get708CharFromCode(extended | currentByte);\n            }\n            if (win.pendingNewLine && !win.isEmpty()) {\n                win.newLine(this.getPts(i));\n            }\n            win.pendingNewLine = false;\n            win.addText(char);\n            return i;\n        };\n        /**\n         * Handle decoding of multibyte character\n         *\n         * @param  {Integer} i        Current index in the 708 packet\n         * @param  {Service} service  The service object to be affected\n         * @return {Integer}          New index after parsing\n         */\n\n        Cea708Stream.prototype.multiByteCharacter = function (i, service) {\n            var packetData = this.current708Packet.data;\n            var firstByte = packetData[i + 1];\n            var secondByte = packetData[i + 2];\n            if (within708TextBlock(firstByte) && within708TextBlock(secondByte)) {\n                i = this.handleText(++i, service, {\n                    isMultiByte: true\n                });\n            }\n            return i;\n        };\n        /**\n         * Parse and execute the CW# command.\n         *\n         * Set the current window.\n         *\n         * @param  {Integer} i        Current index in the 708 packet\n         * @param  {Service} service  The service object to be affected\n         * @return {Integer}          New index after parsing\n         */\n\n        Cea708Stream.prototype.setCurrentWindow = function (i, service) {\n            var packetData = this.current708Packet.data;\n            var b = packetData[i];\n            var windowNum = b & 0x07;\n            service.setCurrentWindow(windowNum);\n            return i;\n        };\n        /**\n         * Parse and execute the DF# command.\n         *\n         * Define a window and set it as the current window.\n         *\n         * @param  {Integer} i        Current index in the 708 packet\n         * @param  {Service} service  The service object to be affected\n         * @return {Integer}          New index after parsing\n         */\n\n        Cea708Stream.prototype.defineWindow = function (i, service) {\n            var packetData = this.current708Packet.data;\n            var b = packetData[i];\n            var windowNum = b & 0x07;\n            service.setCurrentWindow(windowNum);\n            var win = service.currentWindow;\n            b = packetData[++i];\n            win.visible = (b & 0x20) >> 5; // v\n\n            win.rowLock = (b & 0x10) >> 4; // rl\n\n            win.columnLock = (b & 0x08) >> 3; // cl\n\n            win.priority = b & 0x07; // p\n\n            b = packetData[++i];\n            win.relativePositioning = (b & 0x80) >> 7; // rp\n\n            win.anchorVertical = b & 0x7f; // av\n\n            b = packetData[++i];\n            win.anchorHorizontal = b; // ah\n\n            b = packetData[++i];\n            win.anchorPoint = (b & 0xf0) >> 4; // ap\n\n            win.rowCount = b & 0x0f; // rc\n\n            b = packetData[++i];\n            win.columnCount = b & 0x3f; // cc\n\n            b = packetData[++i];\n            win.windowStyle = (b & 0x38) >> 3; // ws\n\n            win.penStyle = b & 0x07; // ps\n            // The spec says there are (rowCount+1) \"virtual rows\"\n\n            win.virtualRowCount = win.rowCount + 1;\n            return i;\n        };\n        /**\n         * Parse and execute the SWA command.\n         *\n         * Set attributes of the current window.\n         *\n         * @param  {Integer} i        Current index in the 708 packet\n         * @param  {Service} service  The service object to be affected\n         * @return {Integer}          New index after parsing\n         */\n\n        Cea708Stream.prototype.setWindowAttributes = function (i, service) {\n            var packetData = this.current708Packet.data;\n            var b = packetData[i];\n            var winAttr = service.currentWindow.winAttr;\n            b = packetData[++i];\n            winAttr.fillOpacity = (b & 0xc0) >> 6; // fo\n\n            winAttr.fillRed = (b & 0x30) >> 4; // fr\n\n            winAttr.fillGreen = (b & 0x0c) >> 2; // fg\n\n            winAttr.fillBlue = b & 0x03; // fb\n\n            b = packetData[++i];\n            winAttr.borderType = (b & 0xc0) >> 6; // bt\n\n            winAttr.borderRed = (b & 0x30) >> 4; // br\n\n            winAttr.borderGreen = (b & 0x0c) >> 2; // bg\n\n            winAttr.borderBlue = b & 0x03; // bb\n\n            b = packetData[++i];\n            winAttr.borderType += (b & 0x80) >> 5; // bt\n\n            winAttr.wordWrap = (b & 0x40) >> 6; // ww\n\n            winAttr.printDirection = (b & 0x30) >> 4; // pd\n\n            winAttr.scrollDirection = (b & 0x0c) >> 2; // sd\n\n            winAttr.justify = b & 0x03; // j\n\n            b = packetData[++i];\n            winAttr.effectSpeed = (b & 0xf0) >> 4; // es\n\n            winAttr.effectDirection = (b & 0x0c) >> 2; // ed\n\n            winAttr.displayEffect = b & 0x03; // de\n\n            return i;\n        };\n        /**\n         * Gather text from all displayed windows and push a caption to output.\n         *\n         * @param  {Integer} i        Current index in the 708 packet\n         * @param  {Service} service  The service object to be affected\n         */\n\n        Cea708Stream.prototype.flushDisplayed = function (pts, service) {\n            var displayedText = []; // TODO: Positioning not supported, displaying multiple windows will not necessarily\n            // display text in the correct order, but sample files so far have not shown any issue.\n\n            for (var winId = 0; winId < 8; winId++) {\n                if (service.windows[winId].visible && !service.windows[winId].isEmpty()) {\n                    displayedText.push(service.windows[winId].getText());\n                }\n            }\n            service.endPts = pts;\n            service.text = displayedText.join('\\n\\n');\n            this.pushCaption(service);\n            service.startPts = pts;\n        };\n        /**\n         * Push a caption to output if the caption contains text.\n         *\n         * @param  {Service} service  The service object to be affected\n         */\n\n        Cea708Stream.prototype.pushCaption = function (service) {\n            if (service.text !== '') {\n                this.trigger('data', {\n                    startPts: service.startPts,\n                    endPts: service.endPts,\n                    text: service.text,\n                    stream: 'cc708_' + service.serviceNum\n                });\n                service.text = '';\n                service.startPts = service.endPts;\n            }\n        };\n        /**\n         * Parse and execute the DSW command.\n         *\n         * Set visible property of windows based on the parsed bitmask.\n         *\n         * @param  {Integer} i        Current index in the 708 packet\n         * @param  {Service} service  The service object to be affected\n         * @return {Integer}          New index after parsing\n         */\n\n        Cea708Stream.prototype.displayWindows = function (i, service) {\n            var packetData = this.current708Packet.data;\n            var b = packetData[++i];\n            var pts = this.getPts(i);\n            this.flushDisplayed(pts, service);\n            for (var winId = 0; winId < 8; winId++) {\n                if (b & 0x01 << winId) {\n                    service.windows[winId].visible = 1;\n                }\n            }\n            return i;\n        };\n        /**\n         * Parse and execute the HDW command.\n         *\n         * Set visible property of windows based on the parsed bitmask.\n         *\n         * @param  {Integer} i        Current index in the 708 packet\n         * @param  {Service} service  The service object to be affected\n         * @return {Integer}          New index after parsing\n         */\n\n        Cea708Stream.prototype.hideWindows = function (i, service) {\n            var packetData = this.current708Packet.data;\n            var b = packetData[++i];\n            var pts = this.getPts(i);\n            this.flushDisplayed(pts, service);\n            for (var winId = 0; winId < 8; winId++) {\n                if (b & 0x01 << winId) {\n                    service.windows[winId].visible = 0;\n                }\n            }\n            return i;\n        };\n        /**\n         * Parse and execute the TGW command.\n         *\n         * Set visible property of windows based on the parsed bitmask.\n         *\n         * @param  {Integer} i        Current index in the 708 packet\n         * @param  {Service} service  The service object to be affected\n         * @return {Integer}          New index after parsing\n         */\n\n        Cea708Stream.prototype.toggleWindows = function (i, service) {\n            var packetData = this.current708Packet.data;\n            var b = packetData[++i];\n            var pts = this.getPts(i);\n            this.flushDisplayed(pts, service);\n            for (var winId = 0; winId < 8; winId++) {\n                if (b & 0x01 << winId) {\n                    service.windows[winId].visible ^= 1;\n                }\n            }\n            return i;\n        };\n        /**\n         * Parse and execute the CLW command.\n         *\n         * Clear text of windows based on the parsed bitmask.\n         *\n         * @param  {Integer} i        Current index in the 708 packet\n         * @param  {Service} service  The service object to be affected\n         * @return {Integer}          New index after parsing\n         */\n\n        Cea708Stream.prototype.clearWindows = function (i, service) {\n            var packetData = this.current708Packet.data;\n            var b = packetData[++i];\n            var pts = this.getPts(i);\n            this.flushDisplayed(pts, service);\n            for (var winId = 0; winId < 8; winId++) {\n                if (b & 0x01 << winId) {\n                    service.windows[winId].clearText();\n                }\n            }\n            return i;\n        };\n        /**\n         * Parse and execute the DLW command.\n         *\n         * Re-initialize windows based on the parsed bitmask.\n         *\n         * @param  {Integer} i        Current index in the 708 packet\n         * @param  {Service} service  The service object to be affected\n         * @return {Integer}          New index after parsing\n         */\n\n        Cea708Stream.prototype.deleteWindows = function (i, service) {\n            var packetData = this.current708Packet.data;\n            var b = packetData[++i];\n            var pts = this.getPts(i);\n            this.flushDisplayed(pts, service);\n            for (var winId = 0; winId < 8; winId++) {\n                if (b & 0x01 << winId) {\n                    service.windows[winId].reset();\n                }\n            }\n            return i;\n        };\n        /**\n         * Parse and execute the SPA command.\n         *\n         * Set pen attributes of the current window.\n         *\n         * @param  {Integer} i        Current index in the 708 packet\n         * @param  {Service} service  The service object to be affected\n         * @return {Integer}          New index after parsing\n         */\n\n        Cea708Stream.prototype.setPenAttributes = function (i, service) {\n            var packetData = this.current708Packet.data;\n            var b = packetData[i];\n            var penAttr = service.currentWindow.penAttr;\n            b = packetData[++i];\n            penAttr.textTag = (b & 0xf0) >> 4; // tt\n\n            penAttr.offset = (b & 0x0c) >> 2; // o\n\n            penAttr.penSize = b & 0x03; // s\n\n            b = packetData[++i];\n            penAttr.italics = (b & 0x80) >> 7; // i\n\n            penAttr.underline = (b & 0x40) >> 6; // u\n\n            penAttr.edgeType = (b & 0x38) >> 3; // et\n\n            penAttr.fontStyle = b & 0x07; // fs\n\n            return i;\n        };\n        /**\n         * Parse and execute the SPC command.\n         *\n         * Set pen color of the current window.\n         *\n         * @param  {Integer} i        Current index in the 708 packet\n         * @param  {Service} service  The service object to be affected\n         * @return {Integer}          New index after parsing\n         */\n\n        Cea708Stream.prototype.setPenColor = function (i, service) {\n            var packetData = this.current708Packet.data;\n            var b = packetData[i];\n            var penColor = service.currentWindow.penColor;\n            b = packetData[++i];\n            penColor.fgOpacity = (b & 0xc0) >> 6; // fo\n\n            penColor.fgRed = (b & 0x30) >> 4; // fr\n\n            penColor.fgGreen = (b & 0x0c) >> 2; // fg\n\n            penColor.fgBlue = b & 0x03; // fb\n\n            b = packetData[++i];\n            penColor.bgOpacity = (b & 0xc0) >> 6; // bo\n\n            penColor.bgRed = (b & 0x30) >> 4; // br\n\n            penColor.bgGreen = (b & 0x0c) >> 2; // bg\n\n            penColor.bgBlue = b & 0x03; // bb\n\n            b = packetData[++i];\n            penColor.edgeRed = (b & 0x30) >> 4; // er\n\n            penColor.edgeGreen = (b & 0x0c) >> 2; // eg\n\n            penColor.edgeBlue = b & 0x03; // eb\n\n            return i;\n        };\n        /**\n         * Parse and execute the SPL command.\n         *\n         * Set pen location of the current window.\n         *\n         * @param  {Integer} i        Current index in the 708 packet\n         * @param  {Service} service  The service object to be affected\n         * @return {Integer}          New index after parsing\n         */\n\n        Cea708Stream.prototype.setPenLocation = function (i, service) {\n            var packetData = this.current708Packet.data;\n            var b = packetData[i];\n            var penLoc = service.currentWindow.penLoc; // Positioning isn't really supported at the moment, so this essentially just inserts a linebreak\n\n            service.currentWindow.pendingNewLine = true;\n            b = packetData[++i];\n            penLoc.row = b & 0x0f; // r\n\n            b = packetData[++i];\n            penLoc.column = b & 0x3f; // c\n\n            return i;\n        };\n        /**\n         * Execute the RST command.\n         *\n         * Reset service to a clean slate. Re-initialize.\n         *\n         * @param  {Integer} i        Current index in the 708 packet\n         * @param  {Service} service  The service object to be affected\n         * @return {Service}          Re-initialized service\n         */\n\n        Cea708Stream.prototype.reset = function (i, service) {\n            var pts = this.getPts(i);\n            this.flushDisplayed(pts, service);\n            return this.initService(service.serviceNum, i);\n        }; // This hash maps non-ASCII, special, and extended character codes to their\n        // proper Unicode equivalent. The first keys that are only a single byte\n        // are the non-standard ASCII characters, which simply map the CEA608 byte\n        // to the standard ASCII/Unicode. The two-byte keys that follow are the CEA608\n        // character codes, but have their MSB bitmasked with 0x03 so that a lookup\n        // can be performed regardless of the field and data channel on which the\n        // character code was received.\n\n        var CHARACTER_TRANSLATION = {\n            0x2a: 0xe1,\n            // á\n            0x5c: 0xe9,\n            // é\n            0x5e: 0xed,\n            // í\n            0x5f: 0xf3,\n            // ó\n            0x60: 0xfa,\n            // ú\n            0x7b: 0xe7,\n            // ç\n            0x7c: 0xf7,\n            // ÷\n            0x7d: 0xd1,\n            // Ñ\n            0x7e: 0xf1,\n            // ñ\n            0x7f: 0x2588,\n            // █\n            0x0130: 0xae,\n            // ®\n            0x0131: 0xb0,\n            // °\n            0x0132: 0xbd,\n            // ½\n            0x0133: 0xbf,\n            // ¿\n            0x0134: 0x2122,\n            // ™\n            0x0135: 0xa2,\n            // ¢\n            0x0136: 0xa3,\n            // £\n            0x0137: 0x266a,\n            // ♪\n            0x0138: 0xe0,\n            // à\n            0x0139: 0xa0,\n            //\n            0x013a: 0xe8,\n            // è\n            0x013b: 0xe2,\n            // â\n            0x013c: 0xea,\n            // ê\n            0x013d: 0xee,\n            // î\n            0x013e: 0xf4,\n            // ô\n            0x013f: 0xfb,\n            // û\n            0x0220: 0xc1,\n            // Á\n            0x0221: 0xc9,\n            // É\n            0x0222: 0xd3,\n            // Ó\n            0x0223: 0xda,\n            // Ú\n            0x0224: 0xdc,\n            // Ü\n            0x0225: 0xfc,\n            // ü\n            0x0226: 0x2018,\n            // ‘\n            0x0227: 0xa1,\n            // ¡\n            0x0228: 0x2a,\n            // *\n            0x0229: 0x27,\n            // '\n            0x022a: 0x2014,\n            // —\n            0x022b: 0xa9,\n            // ©\n            0x022c: 0x2120,\n            // ℠\n            0x022d: 0x2022,\n            // •\n            0x022e: 0x201c,\n            // “\n            0x022f: 0x201d,\n            // ”\n            0x0230: 0xc0,\n            // À\n            0x0231: 0xc2,\n            // Â\n            0x0232: 0xc7,\n            // Ç\n            0x0233: 0xc8,\n            // È\n            0x0234: 0xca,\n            // Ê\n            0x0235: 0xcb,\n            // Ë\n            0x0236: 0xeb,\n            // ë\n            0x0237: 0xce,\n            // Î\n            0x0238: 0xcf,\n            // Ï\n            0x0239: 0xef,\n            // ï\n            0x023a: 0xd4,\n            // Ô\n            0x023b: 0xd9,\n            // Ù\n            0x023c: 0xf9,\n            // ù\n            0x023d: 0xdb,\n            // Û\n            0x023e: 0xab,\n            // «\n            0x023f: 0xbb,\n            // »\n            0x0320: 0xc3,\n            // Ã\n            0x0321: 0xe3,\n            // ã\n            0x0322: 0xcd,\n            // Í\n            0x0323: 0xcc,\n            // Ì\n            0x0324: 0xec,\n            // ì\n            0x0325: 0xd2,\n            // Ò\n            0x0326: 0xf2,\n            // ò\n            0x0327: 0xd5,\n            // Õ\n            0x0328: 0xf5,\n            // õ\n            0x0329: 0x7b,\n            // {\n            0x032a: 0x7d,\n            // }\n            0x032b: 0x5c,\n            // \\\n            0x032c: 0x5e,\n            // ^\n            0x032d: 0x5f,\n            // _\n            0x032e: 0x7c,\n            // |\n            0x032f: 0x7e,\n            // ~\n            0x0330: 0xc4,\n            // Ä\n            0x0331: 0xe4,\n            // ä\n            0x0332: 0xd6,\n            // Ö\n            0x0333: 0xf6,\n            // ö\n            0x0334: 0xdf,\n            // ß\n            0x0335: 0xa5,\n            // ¥\n            0x0336: 0xa4,\n            // ¤\n            0x0337: 0x2502,\n            // │\n            0x0338: 0xc5,\n            // Å\n            0x0339: 0xe5,\n            // å\n            0x033a: 0xd8,\n            // Ø\n            0x033b: 0xf8,\n            // ø\n            0x033c: 0x250c,\n            // ┌\n            0x033d: 0x2510,\n            // ┐\n            0x033e: 0x2514,\n            // └\n            0x033f: 0x2518 // ┘\n        };\n\n        var getCharFromCode = function (code) {\n            if (code === null) {\n                return '';\n            }\n            code = CHARACTER_TRANSLATION[code] || code;\n            return String.fromCharCode(code);\n        }; // the index of the last row in a CEA-608 display buffer\n\n        var BOTTOM_ROW = 14; // This array is used for mapping PACs -> row #, since there's no way of\n        // getting it through bit logic.\n\n        var ROWS = [0x1100, 0x1120, 0x1200, 0x1220, 0x1500, 0x1520, 0x1600, 0x1620, 0x1700, 0x1720, 0x1000, 0x1300, 0x1320, 0x1400, 0x1420]; // CEA-608 captions are rendered onto a 34x15 matrix of character\n        // cells. The \"bottom\" row is the last element in the outer array.\n\n        var createDisplayBuffer = function () {\n            var result = [],\n                i = BOTTOM_ROW + 1;\n            while (i--) {\n                result.push('');\n            }\n            return result;\n        };\n        var Cea608Stream = function (field, dataChannel) {\n            Cea608Stream.prototype.init.call(this);\n            this.field_ = field || 0;\n            this.dataChannel_ = dataChannel || 0;\n            this.name_ = 'CC' + ((this.field_ << 1 | this.dataChannel_) + 1);\n            this.setConstants();\n            this.reset();\n            this.push = function (packet) {\n                var data, swap, char0, char1, text; // remove the parity bits\n\n                data = packet.ccData & 0x7f7f; // ignore duplicate control codes; the spec demands they're sent twice\n\n                if (data === this.lastControlCode_) {\n                    this.lastControlCode_ = null;\n                    return;\n                } // Store control codes\n\n                if ((data & 0xf000) === 0x1000) {\n                    this.lastControlCode_ = data;\n                } else if (data !== this.PADDING_) {\n                    this.lastControlCode_ = null;\n                }\n                char0 = data >>> 8;\n                char1 = data & 0xff;\n                if (data === this.PADDING_) {\n                    return;\n                } else if (data === this.RESUME_CAPTION_LOADING_) {\n                    this.mode_ = 'popOn';\n                } else if (data === this.END_OF_CAPTION_) {\n                    // If an EOC is received while in paint-on mode, the displayed caption\n                    // text should be swapped to non-displayed memory as if it was a pop-on\n                    // caption. Because of that, we should explicitly switch back to pop-on\n                    // mode\n                    this.mode_ = 'popOn';\n                    this.clearFormatting(packet.pts); // if a caption was being displayed, it's gone now\n\n                    this.flushDisplayed(packet.pts); // flip memory\n\n                    swap = this.displayed_;\n                    this.displayed_ = this.nonDisplayed_;\n                    this.nonDisplayed_ = swap; // start measuring the time to display the caption\n\n                    this.startPts_ = packet.pts;\n                } else if (data === this.ROLL_UP_2_ROWS_) {\n                    this.rollUpRows_ = 2;\n                    this.setRollUp(packet.pts);\n                } else if (data === this.ROLL_UP_3_ROWS_) {\n                    this.rollUpRows_ = 3;\n                    this.setRollUp(packet.pts);\n                } else if (data === this.ROLL_UP_4_ROWS_) {\n                    this.rollUpRows_ = 4;\n                    this.setRollUp(packet.pts);\n                } else if (data === this.CARRIAGE_RETURN_) {\n                    this.clearFormatting(packet.pts);\n                    this.flushDisplayed(packet.pts);\n                    this.shiftRowsUp_();\n                    this.startPts_ = packet.pts;\n                } else if (data === this.BACKSPACE_) {\n                    if (this.mode_ === 'popOn') {\n                        this.nonDisplayed_[this.row_] = this.nonDisplayed_[this.row_].slice(0, -1);\n                    } else {\n                        this.displayed_[this.row_] = this.displayed_[this.row_].slice(0, -1);\n                    }\n                } else if (data === this.ERASE_DISPLAYED_MEMORY_) {\n                    this.flushDisplayed(packet.pts);\n                    this.displayed_ = createDisplayBuffer();\n                } else if (data === this.ERASE_NON_DISPLAYED_MEMORY_) {\n                    this.nonDisplayed_ = createDisplayBuffer();\n                } else if (data === this.RESUME_DIRECT_CAPTIONING_) {\n                    if (this.mode_ !== 'paintOn') {\n                        // NOTE: This should be removed when proper caption positioning is\n                        // implemented\n                        this.flushDisplayed(packet.pts);\n                        this.displayed_ = createDisplayBuffer();\n                    }\n                    this.mode_ = 'paintOn';\n                    this.startPts_ = packet.pts; // Append special characters to caption text\n                } else if (this.isSpecialCharacter(char0, char1)) {\n                    // Bitmask char0 so that we can apply character transformations\n                    // regardless of field and data channel.\n                    // Then byte-shift to the left and OR with char1 so we can pass the\n                    // entire character code to `getCharFromCode`.\n                    char0 = (char0 & 0x03) << 8;\n                    text = getCharFromCode(char0 | char1);\n                    this[this.mode_](packet.pts, text);\n                    this.column_++; // Append extended characters to caption text\n                } else if (this.isExtCharacter(char0, char1)) {\n                    // Extended characters always follow their \"non-extended\" equivalents.\n                    // IE if a \"è\" is desired, you'll always receive \"eè\"; non-compliant\n                    // decoders are supposed to drop the \"è\", while compliant decoders\n                    // backspace the \"e\" and insert \"è\".\n                    // Delete the previous character\n                    if (this.mode_ === 'popOn') {\n                        this.nonDisplayed_[this.row_] = this.nonDisplayed_[this.row_].slice(0, -1);\n                    } else {\n                        this.displayed_[this.row_] = this.displayed_[this.row_].slice(0, -1);\n                    } // Bitmask char0 so that we can apply character transformations\n                    // regardless of field and data channel.\n                    // Then byte-shift to the left and OR with char1 so we can pass the\n                    // entire character code to `getCharFromCode`.\n\n                    char0 = (char0 & 0x03) << 8;\n                    text = getCharFromCode(char0 | char1);\n                    this[this.mode_](packet.pts, text);\n                    this.column_++; // Process mid-row codes\n                } else if (this.isMidRowCode(char0, char1)) {\n                    // Attributes are not additive, so clear all formatting\n                    this.clearFormatting(packet.pts); // According to the standard, mid-row codes\n                    // should be replaced with spaces, so add one now\n\n                    this[this.mode_](packet.pts, ' ');\n                    this.column_++;\n                    if ((char1 & 0xe) === 0xe) {\n                        this.addFormatting(packet.pts, ['i']);\n                    }\n                    if ((char1 & 0x1) === 0x1) {\n                        this.addFormatting(packet.pts, ['u']);\n                    } // Detect offset control codes and adjust cursor\n                } else if (this.isOffsetControlCode(char0, char1)) {\n                    // Cursor position is set by indent PAC (see below) in 4-column\n                    // increments, with an additional offset code of 1-3 to reach any\n                    // of the 32 columns specified by CEA-608. So all we need to do\n                    // here is increment the column cursor by the given offset.\n                    this.column_ += char1 & 0x03; // Detect PACs (Preamble Address Codes)\n                } else if (this.isPAC(char0, char1)) {\n                    // There's no logic for PAC -> row mapping, so we have to just\n                    // find the row code in an array and use its index :(\n                    var row = ROWS.indexOf(data & 0x1f20); // Configure the caption window if we're in roll-up mode\n\n                    if (this.mode_ === 'rollUp') {\n                        // This implies that the base row is incorrectly set.\n                        // As per the recommendation in CEA-608(Base Row Implementation), defer to the number\n                        // of roll-up rows set.\n                        if (row - this.rollUpRows_ + 1 < 0) {\n                            row = this.rollUpRows_ - 1;\n                        }\n                        this.setRollUp(packet.pts, row);\n                    }\n                    if (row !== this.row_) {\n                        // formatting is only persistent for current row\n                        this.clearFormatting(packet.pts);\n                        this.row_ = row;\n                    } // All PACs can apply underline, so detect and apply\n                    // (All odd-numbered second bytes set underline)\n\n                    if (char1 & 0x1 && this.formatting_.indexOf('u') === -1) {\n                        this.addFormatting(packet.pts, ['u']);\n                    }\n                    if ((data & 0x10) === 0x10) {\n                        // We've got an indent level code. Each successive even number\n                        // increments the column cursor by 4, so we can get the desired\n                        // column position by bit-shifting to the right (to get n/2)\n                        // and multiplying by 4.\n                        this.column_ = ((data & 0xe) >> 1) * 4;\n                    }\n                    if (this.isColorPAC(char1)) {\n                        // it's a color code, though we only support white, which\n                        // can be either normal or italicized. white italics can be\n                        // either 0x4e or 0x6e depending on the row, so we just\n                        // bitwise-and with 0xe to see if italics should be turned on\n                        if ((char1 & 0xe) === 0xe) {\n                            this.addFormatting(packet.pts, ['i']);\n                        }\n                    } // We have a normal character in char0, and possibly one in char1\n                } else if (this.isNormalChar(char0)) {\n                    if (char1 === 0x00) {\n                        char1 = null;\n                    }\n                    text = getCharFromCode(char0);\n                    text += getCharFromCode(char1);\n                    this[this.mode_](packet.pts, text);\n                    this.column_ += text.length;\n                } // finish data processing\n            };\n        };\n\n        Cea608Stream.prototype = new Stream$7(); // Trigger a cue point that captures the current state of the\n        // display buffer\n\n        Cea608Stream.prototype.flushDisplayed = function (pts) {\n            var content = this.displayed_ // remove spaces from the start and end of the string\n                .map(function (row, index) {\n                    try {\n                        return row.trim();\n                    } catch (e) {\n                        // Ordinarily, this shouldn't happen. However, caption\n                        // parsing errors should not throw exceptions and\n                        // break playback.\n                        this.trigger('log', {\n                            level: 'warn',\n                            message: 'Skipping a malformed 608 caption at index ' + index + '.'\n                        });\n                        return '';\n                    }\n                }, this) // combine all text rows to display in one cue\n                .join('\\n') // and remove blank rows from the start and end, but not the middle\n                .replace(/^\\n+|\\n+$/g, '');\n            if (content.length) {\n                this.trigger('data', {\n                    startPts: this.startPts_,\n                    endPts: pts,\n                    text: content,\n                    stream: this.name_\n                });\n            }\n        };\n        /**\n         * Zero out the data, used for startup and on seek\n         */\n\n        Cea608Stream.prototype.reset = function () {\n            this.mode_ = 'popOn'; // When in roll-up mode, the index of the last row that will\n            // actually display captions. If a caption is shifted to a row\n            // with a lower index than this, it is cleared from the display\n            // buffer\n\n            this.topRow_ = 0;\n            this.startPts_ = 0;\n            this.displayed_ = createDisplayBuffer();\n            this.nonDisplayed_ = createDisplayBuffer();\n            this.lastControlCode_ = null; // Track row and column for proper line-breaking and spacing\n\n            this.column_ = 0;\n            this.row_ = BOTTOM_ROW;\n            this.rollUpRows_ = 2; // This variable holds currently-applied formatting\n\n            this.formatting_ = [];\n        };\n        /**\n         * Sets up control code and related constants for this instance\n         */\n\n        Cea608Stream.prototype.setConstants = function () {\n            // The following attributes have these uses:\n            // ext_ :    char0 for mid-row codes, and the base for extended\n            //           chars (ext_+0, ext_+1, and ext_+2 are char0s for\n            //           extended codes)\n            // control_: char0 for control codes, except byte-shifted to the\n            //           left so that we can do this.control_ | CONTROL_CODE\n            // offset_:  char0 for tab offset codes\n            //\n            // It's also worth noting that control codes, and _only_ control codes,\n            // differ between field 1 and field2. Field 2 control codes are always\n            // their field 1 value plus 1. That's why there's the \"| field\" on the\n            // control value.\n            if (this.dataChannel_ === 0) {\n                this.BASE_ = 0x10;\n                this.EXT_ = 0x11;\n                this.CONTROL_ = (0x14 | this.field_) << 8;\n                this.OFFSET_ = 0x17;\n            } else if (this.dataChannel_ === 1) {\n                this.BASE_ = 0x18;\n                this.EXT_ = 0x19;\n                this.CONTROL_ = (0x1c | this.field_) << 8;\n                this.OFFSET_ = 0x1f;\n            } // Constants for the LSByte command codes recognized by Cea608Stream. This\n            // list is not exhaustive. For a more comprehensive listing and semantics see\n            // http://www.gpo.gov/fdsys/pkg/CFR-2010-title47-vol1/pdf/CFR-2010-title47-vol1-sec15-119.pdf\n            // Padding\n\n            this.PADDING_ = 0x0000; // Pop-on Mode\n\n            this.RESUME_CAPTION_LOADING_ = this.CONTROL_ | 0x20;\n            this.END_OF_CAPTION_ = this.CONTROL_ | 0x2f; // Roll-up Mode\n\n            this.ROLL_UP_2_ROWS_ = this.CONTROL_ | 0x25;\n            this.ROLL_UP_3_ROWS_ = this.CONTROL_ | 0x26;\n            this.ROLL_UP_4_ROWS_ = this.CONTROL_ | 0x27;\n            this.CARRIAGE_RETURN_ = this.CONTROL_ | 0x2d; // paint-on mode\n\n            this.RESUME_DIRECT_CAPTIONING_ = this.CONTROL_ | 0x29; // Erasure\n\n            this.BACKSPACE_ = this.CONTROL_ | 0x21;\n            this.ERASE_DISPLAYED_MEMORY_ = this.CONTROL_ | 0x2c;\n            this.ERASE_NON_DISPLAYED_MEMORY_ = this.CONTROL_ | 0x2e;\n        };\n        /**\n         * Detects if the 2-byte packet data is a special character\n         *\n         * Special characters have a second byte in the range 0x30 to 0x3f,\n         * with the first byte being 0x11 (for data channel 1) or 0x19 (for\n         * data channel 2).\n         *\n         * @param  {Integer} char0 The first byte\n         * @param  {Integer} char1 The second byte\n         * @return {Boolean}       Whether the 2 bytes are an special character\n         */\n\n        Cea608Stream.prototype.isSpecialCharacter = function (char0, char1) {\n            return char0 === this.EXT_ && char1 >= 0x30 && char1 <= 0x3f;\n        };\n        /**\n         * Detects if the 2-byte packet data is an extended character\n         *\n         * Extended characters have a second byte in the range 0x20 to 0x3f,\n         * with the first byte being 0x12 or 0x13 (for data channel 1) or\n         * 0x1a or 0x1b (for data channel 2).\n         *\n         * @param  {Integer} char0 The first byte\n         * @param  {Integer} char1 The second byte\n         * @return {Boolean}       Whether the 2 bytes are an extended character\n         */\n\n        Cea608Stream.prototype.isExtCharacter = function (char0, char1) {\n            return (char0 === this.EXT_ + 1 || char0 === this.EXT_ + 2) && char1 >= 0x20 && char1 <= 0x3f;\n        };\n        /**\n         * Detects if the 2-byte packet is a mid-row code\n         *\n         * Mid-row codes have a second byte in the range 0x20 to 0x2f, with\n         * the first byte being 0x11 (for data channel 1) or 0x19 (for data\n         * channel 2).\n         *\n         * @param  {Integer} char0 The first byte\n         * @param  {Integer} char1 The second byte\n         * @return {Boolean}       Whether the 2 bytes are a mid-row code\n         */\n\n        Cea608Stream.prototype.isMidRowCode = function (char0, char1) {\n            return char0 === this.EXT_ && char1 >= 0x20 && char1 <= 0x2f;\n        };\n        /**\n         * Detects if the 2-byte packet is an offset control code\n         *\n         * Offset control codes have a second byte in the range 0x21 to 0x23,\n         * with the first byte being 0x17 (for data channel 1) or 0x1f (for\n         * data channel 2).\n         *\n         * @param  {Integer} char0 The first byte\n         * @param  {Integer} char1 The second byte\n         * @return {Boolean}       Whether the 2 bytes are an offset control code\n         */\n\n        Cea608Stream.prototype.isOffsetControlCode = function (char0, char1) {\n            return char0 === this.OFFSET_ && char1 >= 0x21 && char1 <= 0x23;\n        };\n        /**\n         * Detects if the 2-byte packet is a Preamble Address Code\n         *\n         * PACs have a first byte in the range 0x10 to 0x17 (for data channel 1)\n         * or 0x18 to 0x1f (for data channel 2), with the second byte in the\n         * range 0x40 to 0x7f.\n         *\n         * @param  {Integer} char0 The first byte\n         * @param  {Integer} char1 The second byte\n         * @return {Boolean}       Whether the 2 bytes are a PAC\n         */\n\n        Cea608Stream.prototype.isPAC = function (char0, char1) {\n            return char0 >= this.BASE_ && char0 < this.BASE_ + 8 && char1 >= 0x40 && char1 <= 0x7f;\n        };\n        /**\n         * Detects if a packet's second byte is in the range of a PAC color code\n         *\n         * PAC color codes have the second byte be in the range 0x40 to 0x4f, or\n         * 0x60 to 0x6f.\n         *\n         * @param  {Integer} char1 The second byte\n         * @return {Boolean}       Whether the byte is a color PAC\n         */\n\n        Cea608Stream.prototype.isColorPAC = function (char1) {\n            return char1 >= 0x40 && char1 <= 0x4f || char1 >= 0x60 && char1 <= 0x7f;\n        };\n        /**\n         * Detects if a single byte is in the range of a normal character\n         *\n         * Normal text bytes are in the range 0x20 to 0x7f.\n         *\n         * @param  {Integer} char  The byte\n         * @return {Boolean}       Whether the byte is a normal character\n         */\n\n        Cea608Stream.prototype.isNormalChar = function (char) {\n            return char >= 0x20 && char <= 0x7f;\n        };\n        /**\n         * Configures roll-up\n         *\n         * @param  {Integer} pts         Current PTS\n         * @param  {Integer} newBaseRow  Used by PACs to slide the current window to\n         *                               a new position\n         */\n\n        Cea608Stream.prototype.setRollUp = function (pts, newBaseRow) {\n            // Reset the base row to the bottom row when switching modes\n            if (this.mode_ !== 'rollUp') {\n                this.row_ = BOTTOM_ROW;\n                this.mode_ = 'rollUp'; // Spec says to wipe memories when switching to roll-up\n\n                this.flushDisplayed(pts);\n                this.nonDisplayed_ = createDisplayBuffer();\n                this.displayed_ = createDisplayBuffer();\n            }\n            if (newBaseRow !== undefined && newBaseRow !== this.row_) {\n                // move currently displayed captions (up or down) to the new base row\n                for (var i = 0; i < this.rollUpRows_; i++) {\n                    this.displayed_[newBaseRow - i] = this.displayed_[this.row_ - i];\n                    this.displayed_[this.row_ - i] = '';\n                }\n            }\n            if (newBaseRow === undefined) {\n                newBaseRow = this.row_;\n            }\n            this.topRow_ = newBaseRow - this.rollUpRows_ + 1;\n        }; // Adds the opening HTML tag for the passed character to the caption text,\n        // and keeps track of it for later closing\n\n        Cea608Stream.prototype.addFormatting = function (pts, format) {\n            this.formatting_ = this.formatting_.concat(format);\n            var text = format.reduce(function (text, format) {\n                return text + '<' + format + '>';\n            }, '');\n            this[this.mode_](pts, text);\n        }; // Adds HTML closing tags for current formatting to caption text and\n        // clears remembered formatting\n\n        Cea608Stream.prototype.clearFormatting = function (pts) {\n            if (!this.formatting_.length) {\n                return;\n            }\n            var text = this.formatting_.reverse().reduce(function (text, format) {\n                return text + '</' + format + '>';\n            }, '');\n            this.formatting_ = [];\n            this[this.mode_](pts, text);\n        }; // Mode Implementations\n\n        Cea608Stream.prototype.popOn = function (pts, text) {\n            var baseRow = this.nonDisplayed_[this.row_]; // buffer characters\n\n            baseRow += text;\n            this.nonDisplayed_[this.row_] = baseRow;\n        };\n        Cea608Stream.prototype.rollUp = function (pts, text) {\n            var baseRow = this.displayed_[this.row_];\n            baseRow += text;\n            this.displayed_[this.row_] = baseRow;\n        };\n        Cea608Stream.prototype.shiftRowsUp_ = function () {\n            var i; // clear out inactive rows\n\n            for (i = 0; i < this.topRow_; i++) {\n                this.displayed_[i] = '';\n            }\n            for (i = this.row_ + 1; i < BOTTOM_ROW + 1; i++) {\n                this.displayed_[i] = '';\n            } // shift displayed rows up\n\n            for (i = this.topRow_; i < this.row_; i++) {\n                this.displayed_[i] = this.displayed_[i + 1];\n            } // clear out the bottom row\n\n            this.displayed_[this.row_] = '';\n        };\n        Cea608Stream.prototype.paintOn = function (pts, text) {\n            var baseRow = this.displayed_[this.row_];\n            baseRow += text;\n            this.displayed_[this.row_] = baseRow;\n        }; // exports\n\n        var captionStream = {\n            CaptionStream: CaptionStream$2,\n            Cea608Stream: Cea608Stream,\n            Cea708Stream: Cea708Stream\n        };\n        /**\n         * mux.js\n         *\n         * Copyright (c) Brightcove\n         * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE\n         */\n\n        var streamTypes = {\n            H264_STREAM_TYPE: 0x1B,\n            ADTS_STREAM_TYPE: 0x0F,\n            METADATA_STREAM_TYPE: 0x15\n        };\n        /**\n         * mux.js\n         *\n         * Copyright (c) Brightcove\n         * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE\n         *\n         * Accepts program elementary stream (PES) data events and corrects\n         * decode and presentation time stamps to account for a rollover\n         * of the 33 bit value.\n         */\n\n        var Stream$6 = stream;\n        var MAX_TS = 8589934592;\n        var RO_THRESH = 4294967296;\n        var TYPE_SHARED = 'shared';\n        var handleRollover$1 = function (value, reference) {\n            var direction = 1;\n            if (value > reference) {\n                // If the current timestamp value is greater than our reference timestamp and we detect a\n                // timestamp rollover, this means the roll over is happening in the opposite direction.\n                // Example scenario: Enter a long stream/video just after a rollover occurred. The reference\n                // point will be set to a small number, e.g. 1. The user then seeks backwards over the\n                // rollover point. In loading this segment, the timestamp values will be very large,\n                // e.g. 2^33 - 1. Since this comes before the data we loaded previously, we want to adjust\n                // the time stamp to be `value - 2^33`.\n                direction = -1;\n            } // Note: A seek forwards or back that is greater than the RO_THRESH (2^32, ~13 hours) will\n            // cause an incorrect adjustment.\n\n            while (Math.abs(reference - value) > RO_THRESH) {\n                value += direction * MAX_TS;\n            }\n            return value;\n        };\n        var TimestampRolloverStream$1 = function (type) {\n            var lastDTS, referenceDTS;\n            TimestampRolloverStream$1.prototype.init.call(this); // The \"shared\" type is used in cases where a stream will contain muxed\n            // video and audio. We could use `undefined` here, but having a string\n            // makes debugging a little clearer.\n\n            this.type_ = type || TYPE_SHARED;\n            this.push = function (data) {\n                // Any \"shared\" rollover streams will accept _all_ data. Otherwise,\n                // streams will only accept data that matches their type.\n                if (this.type_ !== TYPE_SHARED && data.type !== this.type_) {\n                    return;\n                }\n                if (referenceDTS === undefined) {\n                    referenceDTS = data.dts;\n                }\n                data.dts = handleRollover$1(data.dts, referenceDTS);\n                data.pts = handleRollover$1(data.pts, referenceDTS);\n                lastDTS = data.dts;\n                this.trigger('data', data);\n            };\n            this.flush = function () {\n                referenceDTS = lastDTS;\n                this.trigger('done');\n            };\n            this.endTimeline = function () {\n                this.flush();\n                this.trigger('endedtimeline');\n            };\n            this.discontinuity = function () {\n                referenceDTS = void 0;\n                lastDTS = void 0;\n            };\n            this.reset = function () {\n                this.discontinuity();\n                this.trigger('reset');\n            };\n        };\n        TimestampRolloverStream$1.prototype = new Stream$6();\n        var timestampRolloverStream = {\n            TimestampRolloverStream: TimestampRolloverStream$1,\n            handleRollover: handleRollover$1\n        }; // Once IE11 support is dropped, this function should be removed.\n\n        var typedArrayIndexOf$1 = (typedArray, element, fromIndex) => {\n            if (!typedArray) {\n                return -1;\n            }\n            var currentIndex = fromIndex;\n            for (; currentIndex < typedArray.length; currentIndex++) {\n                if (typedArray[currentIndex] === element) {\n                    return currentIndex;\n                }\n            }\n            return -1;\n        };\n        var typedArray = {\n            typedArrayIndexOf: typedArrayIndexOf$1\n        };\n        /**\n         * mux.js\n         *\n         * Copyright (c) Brightcove\n         * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE\n         *\n         * Tools for parsing ID3 frame data\n         * @see http://id3.org/id3v2.3.0\n         */\n\n        var typedArrayIndexOf = typedArray.typedArrayIndexOf,\n            // Frames that allow different types of text encoding contain a text\n            // encoding description byte [ID3v2.4.0 section 4.]\n            textEncodingDescriptionByte = {\n                Iso88591: 0x00,\n                // ISO-8859-1, terminated with \\0.\n                Utf16: 0x01,\n                // UTF-16 encoded Unicode BOM, terminated with \\0\\0\n                Utf16be: 0x02,\n                // UTF-16BE encoded Unicode, without BOM, terminated with \\0\\0\n                Utf8: 0x03 // UTF-8 encoded Unicode, terminated with \\0\n            },\n            // return a percent-encoded representation of the specified byte range\n            // @see http://en.wikipedia.org/wiki/Percent-encoding\n            percentEncode$1 = function (bytes, start, end) {\n                var i,\n                    result = '';\n                for (i = start; i < end; i++) {\n                    result += '%' + ('00' + bytes[i].toString(16)).slice(-2);\n                }\n                return result;\n            },\n            // return the string representation of the specified byte range,\n            // interpreted as UTf-8.\n            parseUtf8 = function (bytes, start, end) {\n                return decodeURIComponent(percentEncode$1(bytes, start, end));\n            },\n            // return the string representation of the specified byte range,\n            // interpreted as ISO-8859-1.\n            parseIso88591$1 = function (bytes, start, end) {\n                return unescape(percentEncode$1(bytes, start, end)); // jshint ignore:line\n            },\n            parseSyncSafeInteger$1 = function (data) {\n                return data[0] << 21 | data[1] << 14 | data[2] << 7 | data[3];\n            },\n            frameParsers = {\n                'APIC': function (frame) {\n                    var i = 1,\n                        mimeTypeEndIndex,\n                        descriptionEndIndex,\n                        LINK_MIME_TYPE = '-->';\n                    if (frame.data[0] !== textEncodingDescriptionByte.Utf8) {\n                        // ignore frames with unrecognized character encodings\n                        return;\n                    } // parsing fields [ID3v2.4.0 section 4.14.]\n\n                    mimeTypeEndIndex = typedArrayIndexOf(frame.data, 0, i);\n                    if (mimeTypeEndIndex < 0) {\n                        // malformed frame\n                        return;\n                    } // parsing Mime type field (terminated with \\0)\n\n                    frame.mimeType = parseIso88591$1(frame.data, i, mimeTypeEndIndex);\n                    i = mimeTypeEndIndex + 1; // parsing 1-byte Picture Type field\n\n                    frame.pictureType = frame.data[i];\n                    i++;\n                    descriptionEndIndex = typedArrayIndexOf(frame.data, 0, i);\n                    if (descriptionEndIndex < 0) {\n                        // malformed frame\n                        return;\n                    } // parsing Description field (terminated with \\0)\n\n                    frame.description = parseUtf8(frame.data, i, descriptionEndIndex);\n                    i = descriptionEndIndex + 1;\n                    if (frame.mimeType === LINK_MIME_TYPE) {\n                        // parsing Picture Data field as URL (always represented as ISO-8859-1 [ID3v2.4.0 section 4.])\n                        frame.url = parseIso88591$1(frame.data, i, frame.data.length);\n                    } else {\n                        // parsing Picture Data field as binary data\n                        frame.pictureData = frame.data.subarray(i, frame.data.length);\n                    }\n                },\n                'T*': function (frame) {\n                    if (frame.data[0] !== textEncodingDescriptionByte.Utf8) {\n                        // ignore frames with unrecognized character encodings\n                        return;\n                    } // parse text field, do not include null terminator in the frame value\n                    // frames that allow different types of encoding contain terminated text [ID3v2.4.0 section 4.]\n\n                    frame.value = parseUtf8(frame.data, 1, frame.data.length).replace(/\\0*$/, ''); // text information frames supports multiple strings, stored as a terminator separated list [ID3v2.4.0 section 4.2.]\n\n                    frame.values = frame.value.split('\\0');\n                },\n                'TXXX': function (frame) {\n                    var descriptionEndIndex;\n                    if (frame.data[0] !== textEncodingDescriptionByte.Utf8) {\n                        // ignore frames with unrecognized character encodings\n                        return;\n                    }\n                    descriptionEndIndex = typedArrayIndexOf(frame.data, 0, 1);\n                    if (descriptionEndIndex === -1) {\n                        return;\n                    } // parse the text fields\n\n                    frame.description = parseUtf8(frame.data, 1, descriptionEndIndex); // do not include the null terminator in the tag value\n                    // frames that allow different types of encoding contain terminated text\n                    // [ID3v2.4.0 section 4.]\n\n                    frame.value = parseUtf8(frame.data, descriptionEndIndex + 1, frame.data.length).replace(/\\0*$/, '');\n                    frame.data = frame.value;\n                },\n                'W*': function (frame) {\n                    // parse URL field; URL fields are always represented as ISO-8859-1 [ID3v2.4.0 section 4.]\n                    // if the value is followed by a string termination all the following information should be ignored [ID3v2.4.0 section 4.3]\n                    frame.url = parseIso88591$1(frame.data, 0, frame.data.length).replace(/\\0.*$/, '');\n                },\n                'WXXX': function (frame) {\n                    var descriptionEndIndex;\n                    if (frame.data[0] !== textEncodingDescriptionByte.Utf8) {\n                        // ignore frames with unrecognized character encodings\n                        return;\n                    }\n                    descriptionEndIndex = typedArrayIndexOf(frame.data, 0, 1);\n                    if (descriptionEndIndex === -1) {\n                        return;\n                    } // parse the description and URL fields\n\n                    frame.description = parseUtf8(frame.data, 1, descriptionEndIndex); // URL fields are always represented as ISO-8859-1 [ID3v2.4.0 section 4.]\n                    // if the value is followed by a string termination all the following information\n                    // should be ignored [ID3v2.4.0 section 4.3]\n\n                    frame.url = parseIso88591$1(frame.data, descriptionEndIndex + 1, frame.data.length).replace(/\\0.*$/, '');\n                },\n                'PRIV': function (frame) {\n                    var i;\n                    for (i = 0; i < frame.data.length; i++) {\n                        if (frame.data[i] === 0) {\n                            // parse the description and URL fields\n                            frame.owner = parseIso88591$1(frame.data, 0, i);\n                            break;\n                        }\n                    }\n                    frame.privateData = frame.data.subarray(i + 1);\n                    frame.data = frame.privateData;\n                }\n            };\n        var parseId3Frames$1 = function (data) {\n            var frameSize,\n                frameHeader,\n                frameStart = 10,\n                tagSize = 0,\n                frames = []; // If we don't have enough data for a header, 10 bytes,\n            // or 'ID3' in the first 3 bytes this is not a valid ID3 tag.\n\n            if (data.length < 10 || data[0] !== 'I'.charCodeAt(0) || data[1] !== 'D'.charCodeAt(0) || data[2] !== '3'.charCodeAt(0)) {\n                return;\n            } // the frame size is transmitted as a 28-bit integer in the\n            // last four bytes of the ID3 header.\n            // The most significant bit of each byte is dropped and the\n            // results concatenated to recover the actual value.\n\n            tagSize = parseSyncSafeInteger$1(data.subarray(6, 10)); // ID3 reports the tag size excluding the header but it's more\n            // convenient for our comparisons to include it\n\n            tagSize += 10; // check bit 6 of byte 5 for the extended header flag.\n\n            var hasExtendedHeader = data[5] & 0x40;\n            if (hasExtendedHeader) {\n                // advance the frame start past the extended header\n                frameStart += 4; // header size field\n\n                frameStart += parseSyncSafeInteger$1(data.subarray(10, 14));\n                tagSize -= parseSyncSafeInteger$1(data.subarray(16, 20)); // clip any padding off the end\n            } // parse one or more ID3 frames\n            // http://id3.org/id3v2.3.0#ID3v2_frame_overview\n\n            do {\n                // determine the number of bytes in this frame\n                frameSize = parseSyncSafeInteger$1(data.subarray(frameStart + 4, frameStart + 8));\n                if (frameSize < 1) {\n                    break;\n                }\n                frameHeader = String.fromCharCode(data[frameStart], data[frameStart + 1], data[frameStart + 2], data[frameStart + 3]);\n                var frame = {\n                    id: frameHeader,\n                    data: data.subarray(frameStart + 10, frameStart + frameSize + 10)\n                };\n                frame.key = frame.id; // parse frame values\n\n                if (frameParsers[frame.id]) {\n                    // use frame specific parser\n                    frameParsers[frame.id](frame);\n                } else if (frame.id[0] === 'T') {\n                    // use text frame generic parser\n                    frameParsers['T*'](frame);\n                } else if (frame.id[0] === 'W') {\n                    // use URL link frame generic parser\n                    frameParsers['W*'](frame);\n                }\n                frames.push(frame);\n                frameStart += 10; // advance past the frame header\n\n                frameStart += frameSize; // advance past the frame body\n            } while (frameStart < tagSize);\n            return frames;\n        };\n        var parseId3 = {\n            parseId3Frames: parseId3Frames$1,\n            parseSyncSafeInteger: parseSyncSafeInteger$1,\n            frameParsers: frameParsers\n        };\n        /**\n         * mux.js\n         *\n         * Copyright (c) Brightcove\n         * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE\n         *\n         * Accepts program elementary stream (PES) data events and parses out\n         * ID3 metadata from them, if present.\n         * @see http://id3.org/id3v2.3.0\n         */\n\n        var Stream$5 = stream,\n            StreamTypes$3 = streamTypes,\n            id3 = parseId3,\n            MetadataStream;\n        MetadataStream = function (options) {\n            var settings = {\n                    // the bytes of the program-level descriptor field in MP2T\n                    // see ISO/IEC 13818-1:2013 (E), section 2.6 \"Program and\n                    // program element descriptors\"\n                    descriptor: options && options.descriptor\n                },\n                // the total size in bytes of the ID3 tag being parsed\n                tagSize = 0,\n                // tag data that is not complete enough to be parsed\n                buffer = [],\n                // the total number of bytes currently in the buffer\n                bufferSize = 0,\n                i;\n            MetadataStream.prototype.init.call(this); // calculate the text track in-band metadata track dispatch type\n            // https://html.spec.whatwg.org/multipage/embedded-content.html#steps-to-expose-a-media-resource-specific-text-track\n\n            this.dispatchType = StreamTypes$3.METADATA_STREAM_TYPE.toString(16);\n            if (settings.descriptor) {\n                for (i = 0; i < settings.descriptor.length; i++) {\n                    this.dispatchType += ('00' + settings.descriptor[i].toString(16)).slice(-2);\n                }\n            }\n            this.push = function (chunk) {\n                var tag, frameStart, frameSize, frame, i, frameHeader;\n                if (chunk.type !== 'timed-metadata') {\n                    return;\n                } // if data_alignment_indicator is set in the PES header,\n                // we must have the start of a new ID3 tag. Assume anything\n                // remaining in the buffer was malformed and throw it out\n\n                if (chunk.dataAlignmentIndicator) {\n                    bufferSize = 0;\n                    buffer.length = 0;\n                } // ignore events that don't look like ID3 data\n\n                if (buffer.length === 0 && (chunk.data.length < 10 || chunk.data[0] !== 'I'.charCodeAt(0) || chunk.data[1] !== 'D'.charCodeAt(0) || chunk.data[2] !== '3'.charCodeAt(0))) {\n                    this.trigger('log', {\n                        level: 'warn',\n                        message: 'Skipping unrecognized metadata packet'\n                    });\n                    return;\n                } // add this chunk to the data we've collected so far\n\n                buffer.push(chunk);\n                bufferSize += chunk.data.byteLength; // grab the size of the entire frame from the ID3 header\n\n                if (buffer.length === 1) {\n                    // the frame size is transmitted as a 28-bit integer in the\n                    // last four bytes of the ID3 header.\n                    // The most significant bit of each byte is dropped and the\n                    // results concatenated to recover the actual value.\n                    tagSize = id3.parseSyncSafeInteger(chunk.data.subarray(6, 10)); // ID3 reports the tag size excluding the header but it's more\n                    // convenient for our comparisons to include it\n\n                    tagSize += 10;\n                } // if the entire frame has not arrived, wait for more data\n\n                if (bufferSize < tagSize) {\n                    return;\n                } // collect the entire frame so it can be parsed\n\n                tag = {\n                    data: new Uint8Array(tagSize),\n                    frames: [],\n                    pts: buffer[0].pts,\n                    dts: buffer[0].dts\n                };\n                for (i = 0; i < tagSize;) {\n                    tag.data.set(buffer[0].data.subarray(0, tagSize - i), i);\n                    i += buffer[0].data.byteLength;\n                    bufferSize -= buffer[0].data.byteLength;\n                    buffer.shift();\n                } // find the start of the first frame and the end of the tag\n\n                frameStart = 10;\n                if (tag.data[5] & 0x40) {\n                    // advance the frame start past the extended header\n                    frameStart += 4; // header size field\n\n                    frameStart += id3.parseSyncSafeInteger(tag.data.subarray(10, 14)); // clip any padding off the end\n\n                    tagSize -= id3.parseSyncSafeInteger(tag.data.subarray(16, 20));\n                } // parse one or more ID3 frames\n                // http://id3.org/id3v2.3.0#ID3v2_frame_overview\n\n                do {\n                    // determine the number of bytes in this frame\n                    frameSize = id3.parseSyncSafeInteger(tag.data.subarray(frameStart + 4, frameStart + 8));\n                    if (frameSize < 1) {\n                        this.trigger('log', {\n                            level: 'warn',\n                            message: 'Malformed ID3 frame encountered. Skipping remaining metadata parsing.'\n                        }); // If the frame is malformed, don't parse any further frames but allow previous valid parsed frames\n                        // to be sent along.\n\n                        break;\n                    }\n                    frameHeader = String.fromCharCode(tag.data[frameStart], tag.data[frameStart + 1], tag.data[frameStart + 2], tag.data[frameStart + 3]);\n                    frame = {\n                        id: frameHeader,\n                        data: tag.data.subarray(frameStart + 10, frameStart + frameSize + 10)\n                    };\n                    frame.key = frame.id; // parse frame values\n\n                    if (id3.frameParsers[frame.id]) {\n                        // use frame specific parser\n                        id3.frameParsers[frame.id](frame);\n                    } else if (frame.id[0] === 'T') {\n                        // use text frame generic parser\n                        id3.frameParsers['T*'](frame);\n                    } else if (frame.id[0] === 'W') {\n                        // use URL link frame generic parser\n                        id3.frameParsers['W*'](frame);\n                    } // handle the special PRIV frame used to indicate the start\n                    // time for raw AAC data\n\n                    if (frame.owner === 'com.apple.streaming.transportStreamTimestamp') {\n                        var d = frame.data,\n                            size = (d[3] & 0x01) << 30 | d[4] << 22 | d[5] << 14 | d[6] << 6 | d[7] >>> 2;\n                        size *= 4;\n                        size += d[7] & 0x03;\n                        frame.timeStamp = size; // in raw AAC, all subsequent data will be timestamped based\n                        // on the value of this frame\n                        // we couldn't have known the appropriate pts and dts before\n                        // parsing this ID3 tag so set those values now\n\n                        if (tag.pts === undefined && tag.dts === undefined) {\n                            tag.pts = frame.timeStamp;\n                            tag.dts = frame.timeStamp;\n                        }\n                        this.trigger('timestamp', frame);\n                    }\n                    tag.frames.push(frame);\n                    frameStart += 10; // advance past the frame header\n\n                    frameStart += frameSize; // advance past the frame body\n                } while (frameStart < tagSize);\n                this.trigger('data', tag);\n            };\n        };\n        MetadataStream.prototype = new Stream$5();\n        var metadataStream = MetadataStream;\n        /**\n         * mux.js\n         *\n         * Copyright (c) Brightcove\n         * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE\n         *\n         * A stream-based mp2t to mp4 converter. This utility can be used to\n         * deliver mp4s to a SourceBuffer on platforms that support native\n         * Media Source Extensions.\n         */\n\n        var Stream$4 = stream,\n            CaptionStream$1 = captionStream,\n            StreamTypes$2 = streamTypes,\n            TimestampRolloverStream = timestampRolloverStream.TimestampRolloverStream; // object types\n\n        var TransportPacketStream, TransportParseStream, ElementaryStream; // constants\n\n        var MP2T_PACKET_LENGTH$1 = 188,\n            // bytes\n            SYNC_BYTE$1 = 0x47;\n        /**\n         * Splits an incoming stream of binary data into MPEG-2 Transport\n         * Stream packets.\n         */\n\n        TransportPacketStream = function () {\n            var buffer = new Uint8Array(MP2T_PACKET_LENGTH$1),\n                bytesInBuffer = 0;\n            TransportPacketStream.prototype.init.call(this); // Deliver new bytes to the stream.\n\n            /**\n             * Split a stream of data into M2TS packets\n             **/\n\n            this.push = function (bytes) {\n                var startIndex = 0,\n                    endIndex = MP2T_PACKET_LENGTH$1,\n                    everything; // If there are bytes remaining from the last segment, prepend them to the\n                // bytes that were pushed in\n\n                if (bytesInBuffer) {\n                    everything = new Uint8Array(bytes.byteLength + bytesInBuffer);\n                    everything.set(buffer.subarray(0, bytesInBuffer));\n                    everything.set(bytes, bytesInBuffer);\n                    bytesInBuffer = 0;\n                } else {\n                    everything = bytes;\n                } // While we have enough data for a packet\n\n                while (endIndex < everything.byteLength) {\n                    // Look for a pair of start and end sync bytes in the data..\n                    if (everything[startIndex] === SYNC_BYTE$1 && everything[endIndex] === SYNC_BYTE$1) {\n                        // We found a packet so emit it and jump one whole packet forward in\n                        // the stream\n                        this.trigger('data', everything.subarray(startIndex, endIndex));\n                        startIndex += MP2T_PACKET_LENGTH$1;\n                        endIndex += MP2T_PACKET_LENGTH$1;\n                        continue;\n                    } // If we get here, we have somehow become de-synchronized and we need to step\n                    // forward one byte at a time until we find a pair of sync bytes that denote\n                    // a packet\n\n                    startIndex++;\n                    endIndex++;\n                } // If there was some data left over at the end of the segment that couldn't\n                // possibly be a whole packet, keep it because it might be the start of a packet\n                // that continues in the next segment\n\n                if (startIndex < everything.byteLength) {\n                    buffer.set(everything.subarray(startIndex), 0);\n                    bytesInBuffer = everything.byteLength - startIndex;\n                }\n            };\n            /**\n             * Passes identified M2TS packets to the TransportParseStream to be parsed\n             **/\n\n            this.flush = function () {\n                // If the buffer contains a whole packet when we are being flushed, emit it\n                // and empty the buffer. Otherwise hold onto the data because it may be\n                // important for decoding the next segment\n                if (bytesInBuffer === MP2T_PACKET_LENGTH$1 && buffer[0] === SYNC_BYTE$1) {\n                    this.trigger('data', buffer);\n                    bytesInBuffer = 0;\n                }\n                this.trigger('done');\n            };\n            this.endTimeline = function () {\n                this.flush();\n                this.trigger('endedtimeline');\n            };\n            this.reset = function () {\n                bytesInBuffer = 0;\n                this.trigger('reset');\n            };\n        };\n        TransportPacketStream.prototype = new Stream$4();\n        /**\n         * Accepts an MP2T TransportPacketStream and emits data events with parsed\n         * forms of the individual transport stream packets.\n         */\n\n        TransportParseStream = function () {\n            var parsePsi, parsePat, parsePmt, self;\n            TransportParseStream.prototype.init.call(this);\n            self = this;\n            this.packetsWaitingForPmt = [];\n            this.programMapTable = undefined;\n            parsePsi = function (payload, psi) {\n                var offset = 0; // PSI packets may be split into multiple sections and those\n                // sections may be split into multiple packets. If a PSI\n                // section starts in this packet, the payload_unit_start_indicator\n                // will be true and the first byte of the payload will indicate\n                // the offset from the current position to the start of the\n                // section.\n\n                if (psi.payloadUnitStartIndicator) {\n                    offset += payload[offset] + 1;\n                }\n                if (psi.type === 'pat') {\n                    parsePat(payload.subarray(offset), psi);\n                } else {\n                    parsePmt(payload.subarray(offset), psi);\n                }\n            };\n            parsePat = function (payload, pat) {\n                pat.section_number = payload[7]; // eslint-disable-line camelcase\n\n                pat.last_section_number = payload[8]; // eslint-disable-line camelcase\n                // skip the PSI header and parse the first PMT entry\n\n                self.pmtPid = (payload[10] & 0x1F) << 8 | payload[11];\n                pat.pmtPid = self.pmtPid;\n            };\n            /**\n             * Parse out the relevant fields of a Program Map Table (PMT).\n             * @param payload {Uint8Array} the PMT-specific portion of an MP2T\n             * packet. The first byte in this array should be the table_id\n             * field.\n             * @param pmt {object} the object that should be decorated with\n             * fields parsed from the PMT.\n             */\n\n            parsePmt = function (payload, pmt) {\n                var sectionLength, tableEnd, programInfoLength, offset; // PMTs can be sent ahead of the time when they should actually\n                // take effect. We don't believe this should ever be the case\n                // for HLS but we'll ignore \"forward\" PMT declarations if we see\n                // them. Future PMT declarations have the current_next_indicator\n                // set to zero.\n\n                if (!(payload[5] & 0x01)) {\n                    return;\n                } // overwrite any existing program map table\n\n                self.programMapTable = {\n                    video: null,\n                    audio: null,\n                    'timed-metadata': {}\n                }; // the mapping table ends at the end of the current section\n\n                sectionLength = (payload[1] & 0x0f) << 8 | payload[2];\n                tableEnd = 3 + sectionLength - 4; // to determine where the table is, we have to figure out how\n                // long the program info descriptors are\n\n                programInfoLength = (payload[10] & 0x0f) << 8 | payload[11]; // advance the offset to the first entry in the mapping table\n\n                offset = 12 + programInfoLength;\n                while (offset < tableEnd) {\n                    var streamType = payload[offset];\n                    var pid = (payload[offset + 1] & 0x1F) << 8 | payload[offset + 2]; // only map a single elementary_pid for audio and video stream types\n                    // TODO: should this be done for metadata too? for now maintain behavior of\n                    //       multiple metadata streams\n\n                    if (streamType === StreamTypes$2.H264_STREAM_TYPE && self.programMapTable.video === null) {\n                        self.programMapTable.video = pid;\n                    } else if (streamType === StreamTypes$2.ADTS_STREAM_TYPE && self.programMapTable.audio === null) {\n                        self.programMapTable.audio = pid;\n                    } else if (streamType === StreamTypes$2.METADATA_STREAM_TYPE) {\n                        // map pid to stream type for metadata streams\n                        self.programMapTable['timed-metadata'][pid] = streamType;\n                    } // move to the next table entry\n                    // skip past the elementary stream descriptors, if present\n\n                    offset += ((payload[offset + 3] & 0x0F) << 8 | payload[offset + 4]) + 5;\n                } // record the map on the packet as well\n\n                pmt.programMapTable = self.programMapTable;\n            };\n            /**\n             * Deliver a new MP2T packet to the next stream in the pipeline.\n             */\n\n            this.push = function (packet) {\n                var result = {},\n                    offset = 4;\n                result.payloadUnitStartIndicator = !!(packet[1] & 0x40); // pid is a 13-bit field starting at the last bit of packet[1]\n\n                result.pid = packet[1] & 0x1f;\n                result.pid <<= 8;\n                result.pid |= packet[2]; // if an adaption field is present, its length is specified by the\n                // fifth byte of the TS packet header. The adaptation field is\n                // used to add stuffing to PES packets that don't fill a complete\n                // TS packet, and to specify some forms of timing and control data\n                // that we do not currently use.\n\n                if ((packet[3] & 0x30) >>> 4 > 0x01) {\n                    offset += packet[offset] + 1;\n                } // parse the rest of the packet based on the type\n\n                if (result.pid === 0) {\n                    result.type = 'pat';\n                    parsePsi(packet.subarray(offset), result);\n                    this.trigger('data', result);\n                } else if (result.pid === this.pmtPid) {\n                    result.type = 'pmt';\n                    parsePsi(packet.subarray(offset), result);\n                    this.trigger('data', result); // if there are any packets waiting for a PMT to be found, process them now\n\n                    while (this.packetsWaitingForPmt.length) {\n                        this.processPes_.apply(this, this.packetsWaitingForPmt.shift());\n                    }\n                } else if (this.programMapTable === undefined) {\n                    // When we have not seen a PMT yet, defer further processing of\n                    // PES packets until one has been parsed\n                    this.packetsWaitingForPmt.push([packet, offset, result]);\n                } else {\n                    this.processPes_(packet, offset, result);\n                }\n            };\n            this.processPes_ = function (packet, offset, result) {\n                // set the appropriate stream type\n                if (result.pid === this.programMapTable.video) {\n                    result.streamType = StreamTypes$2.H264_STREAM_TYPE;\n                } else if (result.pid === this.programMapTable.audio) {\n                    result.streamType = StreamTypes$2.ADTS_STREAM_TYPE;\n                } else {\n                    // if not video or audio, it is timed-metadata or unknown\n                    // if unknown, streamType will be undefined\n                    result.streamType = this.programMapTable['timed-metadata'][result.pid];\n                }\n                result.type = 'pes';\n                result.data = packet.subarray(offset);\n                this.trigger('data', result);\n            };\n        };\n        TransportParseStream.prototype = new Stream$4();\n        TransportParseStream.STREAM_TYPES = {\n            h264: 0x1b,\n            adts: 0x0f\n        };\n        /**\n         * Reconsistutes program elementary stream (PES) packets from parsed\n         * transport stream packets. That is, if you pipe an\n         * mp2t.TransportParseStream into a mp2t.ElementaryStream, the output\n         * events will be events which capture the bytes for individual PES\n         * packets plus relevant metadata that has been extracted from the\n         * container.\n         */\n\n        ElementaryStream = function () {\n            var self = this,\n                segmentHadPmt = false,\n                // PES packet fragments\n                video = {\n                    data: [],\n                    size: 0\n                },\n                audio = {\n                    data: [],\n                    size: 0\n                },\n                timedMetadata = {\n                    data: [],\n                    size: 0\n                },\n                programMapTable,\n                parsePes = function (payload, pes) {\n                    var ptsDtsFlags;\n                    const startPrefix = payload[0] << 16 | payload[1] << 8 | payload[2]; // default to an empty array\n\n                    pes.data = new Uint8Array(); // In certain live streams, the start of a TS fragment has ts packets\n                    // that are frame data that is continuing from the previous fragment. This\n                    // is to check that the pes data is the start of a new pes payload\n\n                    if (startPrefix !== 1) {\n                        return;\n                    } // get the packet length, this will be 0 for video\n\n                    pes.packetLength = 6 + (payload[4] << 8 | payload[5]); // find out if this packets starts a new keyframe\n\n                    pes.dataAlignmentIndicator = (payload[6] & 0x04) !== 0; // PES packets may be annotated with a PTS value, or a PTS value\n                    // and a DTS value. Determine what combination of values is\n                    // available to work with.\n\n                    ptsDtsFlags = payload[7]; // PTS and DTS are normally stored as a 33-bit number.  Javascript\n                    // performs all bitwise operations on 32-bit integers but javascript\n                    // supports a much greater range (52-bits) of integer using standard\n                    // mathematical operations.\n                    // We construct a 31-bit value using bitwise operators over the 31\n                    // most significant bits and then multiply by 4 (equal to a left-shift\n                    // of 2) before we add the final 2 least significant bits of the\n                    // timestamp (equal to an OR.)\n\n                    if (ptsDtsFlags & 0xC0) {\n                        // the PTS and DTS are not written out directly. For information\n                        // on how they are encoded, see\n                        // http://dvd.sourceforge.net/dvdinfo/pes-hdr.html\n                        pes.pts = (payload[9] & 0x0E) << 27 | (payload[10] & 0xFF) << 20 | (payload[11] & 0xFE) << 12 | (payload[12] & 0xFF) << 5 | (payload[13] & 0xFE) >>> 3;\n                        pes.pts *= 4; // Left shift by 2\n\n                        pes.pts += (payload[13] & 0x06) >>> 1; // OR by the two LSBs\n\n                        pes.dts = pes.pts;\n                        if (ptsDtsFlags & 0x40) {\n                            pes.dts = (payload[14] & 0x0E) << 27 | (payload[15] & 0xFF) << 20 | (payload[16] & 0xFE) << 12 | (payload[17] & 0xFF) << 5 | (payload[18] & 0xFE) >>> 3;\n                            pes.dts *= 4; // Left shift by 2\n\n                            pes.dts += (payload[18] & 0x06) >>> 1; // OR by the two LSBs\n                        }\n                    } // the data section starts immediately after the PES header.\n                    // pes_header_data_length specifies the number of header bytes\n                    // that follow the last byte of the field.\n\n                    pes.data = payload.subarray(9 + payload[8]);\n                },\n                /**\n                 * Pass completely parsed PES packets to the next stream in the pipeline\n                 **/\n                flushStream = function (stream, type, forceFlush) {\n                    var packetData = new Uint8Array(stream.size),\n                        event = {\n                            type: type\n                        },\n                        i = 0,\n                        offset = 0,\n                        packetFlushable = false,\n                        fragment; // do nothing if there is not enough buffered data for a complete\n                    // PES header\n\n                    if (!stream.data.length || stream.size < 9) {\n                        return;\n                    }\n                    event.trackId = stream.data[0].pid; // reassemble the packet\n\n                    for (i = 0; i < stream.data.length; i++) {\n                        fragment = stream.data[i];\n                        packetData.set(fragment.data, offset);\n                        offset += fragment.data.byteLength;\n                    } // parse assembled packet's PES header\n\n                    parsePes(packetData, event); // non-video PES packets MUST have a non-zero PES_packet_length\n                    // check that there is enough stream data to fill the packet\n\n                    packetFlushable = type === 'video' || event.packetLength <= stream.size; // flush pending packets if the conditions are right\n\n                    if (forceFlush || packetFlushable) {\n                        stream.size = 0;\n                        stream.data.length = 0;\n                    } // only emit packets that are complete. this is to avoid assembling\n                    // incomplete PES packets due to poor segmentation\n\n                    if (packetFlushable) {\n                        self.trigger('data', event);\n                    }\n                };\n            ElementaryStream.prototype.init.call(this);\n            /**\n             * Identifies M2TS packet types and parses PES packets using metadata\n             * parsed from the PMT\n             **/\n\n            this.push = function (data) {\n                ({\n                    pat: function () {// we have to wait for the PMT to arrive as well before we\n                        // have any meaningful metadata\n                    },\n                    pes: function () {\n                        var stream, streamType;\n                        switch (data.streamType) {\n                            case StreamTypes$2.H264_STREAM_TYPE:\n                                stream = video;\n                                streamType = 'video';\n                                break;\n                            case StreamTypes$2.ADTS_STREAM_TYPE:\n                                stream = audio;\n                                streamType = 'audio';\n                                break;\n                            case StreamTypes$2.METADATA_STREAM_TYPE:\n                                stream = timedMetadata;\n                                streamType = 'timed-metadata';\n                                break;\n                            default:\n                                // ignore unknown stream types\n                                return;\n                        } // if a new packet is starting, we can flush the completed\n                        // packet\n\n                        if (data.payloadUnitStartIndicator) {\n                            flushStream(stream, streamType, true);\n                        } // buffer this fragment until we are sure we've received the\n                        // complete payload\n\n                        stream.data.push(data);\n                        stream.size += data.data.byteLength;\n                    },\n                    pmt: function () {\n                        var event = {\n                            type: 'metadata',\n                            tracks: []\n                        };\n                        programMapTable = data.programMapTable; // translate audio and video streams to tracks\n\n                        if (programMapTable.video !== null) {\n                            event.tracks.push({\n                                timelineStartInfo: {\n                                    baseMediaDecodeTime: 0\n                                },\n                                id: +programMapTable.video,\n                                codec: 'avc',\n                                type: 'video'\n                            });\n                        }\n                        if (programMapTable.audio !== null) {\n                            event.tracks.push({\n                                timelineStartInfo: {\n                                    baseMediaDecodeTime: 0\n                                },\n                                id: +programMapTable.audio,\n                                codec: 'adts',\n                                type: 'audio'\n                            });\n                        }\n                        segmentHadPmt = true;\n                        self.trigger('data', event);\n                    }\n                })[data.type]();\n            };\n            this.reset = function () {\n                video.size = 0;\n                video.data.length = 0;\n                audio.size = 0;\n                audio.data.length = 0;\n                this.trigger('reset');\n            };\n            /**\n             * Flush any remaining input. Video PES packets may be of variable\n             * length. Normally, the start of a new video packet can trigger the\n             * finalization of the previous packet. That is not possible if no\n             * more video is forthcoming, however. In that case, some other\n             * mechanism (like the end of the file) has to be employed. When it is\n             * clear that no additional data is forthcoming, calling this method\n             * will flush the buffered packets.\n             */\n\n            this.flushStreams_ = function () {\n                // !!THIS ORDER IS IMPORTANT!!\n                // video first then audio\n                flushStream(video, 'video');\n                flushStream(audio, 'audio');\n                flushStream(timedMetadata, 'timed-metadata');\n            };\n            this.flush = function () {\n                // if on flush we haven't had a pmt emitted\n                // and we have a pmt to emit. emit the pmt\n                // so that we trigger a trackinfo downstream.\n                if (!segmentHadPmt && programMapTable) {\n                    var pmt = {\n                        type: 'metadata',\n                        tracks: []\n                    }; // translate audio and video streams to tracks\n\n                    if (programMapTable.video !== null) {\n                        pmt.tracks.push({\n                            timelineStartInfo: {\n                                baseMediaDecodeTime: 0\n                            },\n                            id: +programMapTable.video,\n                            codec: 'avc',\n                            type: 'video'\n                        });\n                    }\n                    if (programMapTable.audio !== null) {\n                        pmt.tracks.push({\n                            timelineStartInfo: {\n                                baseMediaDecodeTime: 0\n                            },\n                            id: +programMapTable.audio,\n                            codec: 'adts',\n                            type: 'audio'\n                        });\n                    }\n                    self.trigger('data', pmt);\n                }\n                segmentHadPmt = false;\n                this.flushStreams_();\n                this.trigger('done');\n            };\n        };\n        ElementaryStream.prototype = new Stream$4();\n        var m2ts$1 = {\n            PAT_PID: 0x0000,\n            MP2T_PACKET_LENGTH: MP2T_PACKET_LENGTH$1,\n            TransportPacketStream: TransportPacketStream,\n            TransportParseStream: TransportParseStream,\n            ElementaryStream: ElementaryStream,\n            TimestampRolloverStream: TimestampRolloverStream,\n            CaptionStream: CaptionStream$1.CaptionStream,\n            Cea608Stream: CaptionStream$1.Cea608Stream,\n            Cea708Stream: CaptionStream$1.Cea708Stream,\n            MetadataStream: metadataStream\n        };\n        for (var type in StreamTypes$2) {\n            if (StreamTypes$2.hasOwnProperty(type)) {\n                m2ts$1[type] = StreamTypes$2[type];\n            }\n        }\n        var m2ts_1 = m2ts$1;\n        /**\n         * mux.js\n         *\n         * Copyright (c) Brightcove\n         * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE\n         */\n\n        var Stream$3 = stream;\n        var ONE_SECOND_IN_TS$2 = clock$2.ONE_SECOND_IN_TS;\n        var AdtsStream$1;\n        var ADTS_SAMPLING_FREQUENCIES$1 = [96000, 88200, 64000, 48000, 44100, 32000, 24000, 22050, 16000, 12000, 11025, 8000, 7350];\n        /*\n     * Accepts a ElementaryStream and emits data events with parsed\n     * AAC Audio Frames of the individual packets. Input audio in ADTS\n     * format is unpacked and re-emitted as AAC frames.\n     *\n     * @see http://wiki.multimedia.cx/index.php?title=ADTS\n     * @see http://wiki.multimedia.cx/?title=Understanding_AAC\n     */\n\n        AdtsStream$1 = function (handlePartialSegments) {\n            var buffer,\n                frameNum = 0;\n            AdtsStream$1.prototype.init.call(this);\n            this.skipWarn_ = function (start, end) {\n                this.trigger('log', {\n                    level: 'warn',\n                    message: `adts skiping bytes ${start} to ${end} in frame ${frameNum} outside syncword`\n                });\n            };\n            this.push = function (packet) {\n                var i = 0,\n                    frameLength,\n                    protectionSkipBytes,\n                    oldBuffer,\n                    sampleCount,\n                    adtsFrameDuration;\n                if (!handlePartialSegments) {\n                    frameNum = 0;\n                }\n                if (packet.type !== 'audio') {\n                    // ignore non-audio data\n                    return;\n                } // Prepend any data in the buffer to the input data so that we can parse\n                // aac frames the cross a PES packet boundary\n\n                if (buffer && buffer.length) {\n                    oldBuffer = buffer;\n                    buffer = new Uint8Array(oldBuffer.byteLength + packet.data.byteLength);\n                    buffer.set(oldBuffer);\n                    buffer.set(packet.data, oldBuffer.byteLength);\n                } else {\n                    buffer = packet.data;\n                } // unpack any ADTS frames which have been fully received\n                // for details on the ADTS header, see http://wiki.multimedia.cx/index.php?title=ADTS\n\n                var skip; // We use i + 7 here because we want to be able to parse the entire header.\n                // If we don't have enough bytes to do that, then we definitely won't have a full frame.\n\n                while (i + 7 < buffer.length) {\n                    // Look for the start of an ADTS header..\n                    if (buffer[i] !== 0xFF || (buffer[i + 1] & 0xF6) !== 0xF0) {\n                        if (typeof skip !== 'number') {\n                            skip = i;\n                        } // If a valid header was not found,  jump one forward and attempt to\n                        // find a valid ADTS header starting at the next byte\n\n                        i++;\n                        continue;\n                    }\n                    if (typeof skip === 'number') {\n                        this.skipWarn_(skip, i);\n                        skip = null;\n                    } // The protection skip bit tells us if we have 2 bytes of CRC data at the\n                    // end of the ADTS header\n\n                    protectionSkipBytes = (~buffer[i + 1] & 0x01) * 2; // Frame length is a 13 bit integer starting 16 bits from the\n                    // end of the sync sequence\n                    // NOTE: frame length includes the size of the header\n\n                    frameLength = (buffer[i + 3] & 0x03) << 11 | buffer[i + 4] << 3 | (buffer[i + 5] & 0xe0) >> 5;\n                    sampleCount = ((buffer[i + 6] & 0x03) + 1) * 1024;\n                    adtsFrameDuration = sampleCount * ONE_SECOND_IN_TS$2 / ADTS_SAMPLING_FREQUENCIES$1[(buffer[i + 2] & 0x3c) >>> 2]; // If we don't have enough data to actually finish this ADTS frame,\n                    // then we have to wait for more data\n\n                    if (buffer.byteLength - i < frameLength) {\n                        break;\n                    } // Otherwise, deliver the complete AAC frame\n\n                    this.trigger('data', {\n                        pts: packet.pts + frameNum * adtsFrameDuration,\n                        dts: packet.dts + frameNum * adtsFrameDuration,\n                        sampleCount: sampleCount,\n                        audioobjecttype: (buffer[i + 2] >>> 6 & 0x03) + 1,\n                        channelcount: (buffer[i + 2] & 1) << 2 | (buffer[i + 3] & 0xc0) >>> 6,\n                        samplerate: ADTS_SAMPLING_FREQUENCIES$1[(buffer[i + 2] & 0x3c) >>> 2],\n                        samplingfrequencyindex: (buffer[i + 2] & 0x3c) >>> 2,\n                        // assume ISO/IEC 14496-12 AudioSampleEntry default of 16\n                        samplesize: 16,\n                        // data is the frame without it's header\n                        data: buffer.subarray(i + 7 + protectionSkipBytes, i + frameLength)\n                    });\n                    frameNum++;\n                    i += frameLength;\n                }\n                if (typeof skip === 'number') {\n                    this.skipWarn_(skip, i);\n                    skip = null;\n                } // remove processed bytes from the buffer.\n\n                buffer = buffer.subarray(i);\n            };\n            this.flush = function () {\n                frameNum = 0;\n                this.trigger('done');\n            };\n            this.reset = function () {\n                buffer = void 0;\n                this.trigger('reset');\n            };\n            this.endTimeline = function () {\n                buffer = void 0;\n                this.trigger('endedtimeline');\n            };\n        };\n        AdtsStream$1.prototype = new Stream$3();\n        var adts = AdtsStream$1;\n        /**\n         * mux.js\n         *\n         * Copyright (c) Brightcove\n         * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE\n         */\n\n        var ExpGolomb$1;\n        /**\n         * Parser for exponential Golomb codes, a variable-bitwidth number encoding\n         * scheme used by h264.\n         */\n\n        ExpGolomb$1 = function (workingData) {\n            var\n                // the number of bytes left to examine in workingData\n                workingBytesAvailable = workingData.byteLength,\n                // the current word being examined\n                workingWord = 0,\n                // :uint\n                // the number of bits left to examine in the current word\n                workingBitsAvailable = 0; // :uint;\n            // ():uint\n\n            this.length = function () {\n                return 8 * workingBytesAvailable;\n            }; // ():uint\n\n            this.bitsAvailable = function () {\n                return 8 * workingBytesAvailable + workingBitsAvailable;\n            }; // ():void\n\n            this.loadWord = function () {\n                var position = workingData.byteLength - workingBytesAvailable,\n                    workingBytes = new Uint8Array(4),\n                    availableBytes = Math.min(4, workingBytesAvailable);\n                if (availableBytes === 0) {\n                    throw new Error('no bytes available');\n                }\n                workingBytes.set(workingData.subarray(position, position + availableBytes));\n                workingWord = new DataView(workingBytes.buffer).getUint32(0); // track the amount of workingData that has been processed\n\n                workingBitsAvailable = availableBytes * 8;\n                workingBytesAvailable -= availableBytes;\n            }; // (count:int):void\n\n            this.skipBits = function (count) {\n                var skipBytes; // :int\n\n                if (workingBitsAvailable > count) {\n                    workingWord <<= count;\n                    workingBitsAvailable -= count;\n                } else {\n                    count -= workingBitsAvailable;\n                    skipBytes = Math.floor(count / 8);\n                    count -= skipBytes * 8;\n                    workingBytesAvailable -= skipBytes;\n                    this.loadWord();\n                    workingWord <<= count;\n                    workingBitsAvailable -= count;\n                }\n            }; // (size:int):uint\n\n            this.readBits = function (size) {\n                var bits = Math.min(workingBitsAvailable, size),\n                    // :uint\n                    valu = workingWord >>> 32 - bits; // :uint\n                // if size > 31, handle error\n\n                workingBitsAvailable -= bits;\n                if (workingBitsAvailable > 0) {\n                    workingWord <<= bits;\n                } else if (workingBytesAvailable > 0) {\n                    this.loadWord();\n                }\n                bits = size - bits;\n                if (bits > 0) {\n                    return valu << bits | this.readBits(bits);\n                }\n                return valu;\n            }; // ():uint\n\n            this.skipLeadingZeros = function () {\n                var leadingZeroCount; // :uint\n\n                for (leadingZeroCount = 0; leadingZeroCount < workingBitsAvailable; ++leadingZeroCount) {\n                    if ((workingWord & 0x80000000 >>> leadingZeroCount) !== 0) {\n                        // the first bit of working word is 1\n                        workingWord <<= leadingZeroCount;\n                        workingBitsAvailable -= leadingZeroCount;\n                        return leadingZeroCount;\n                    }\n                } // we exhausted workingWord and still have not found a 1\n\n                this.loadWord();\n                return leadingZeroCount + this.skipLeadingZeros();\n            }; // ():void\n\n            this.skipUnsignedExpGolomb = function () {\n                this.skipBits(1 + this.skipLeadingZeros());\n            }; // ():void\n\n            this.skipExpGolomb = function () {\n                this.skipBits(1 + this.skipLeadingZeros());\n            }; // ():uint\n\n            this.readUnsignedExpGolomb = function () {\n                var clz = this.skipLeadingZeros(); // :uint\n\n                return this.readBits(clz + 1) - 1;\n            }; // ():int\n\n            this.readExpGolomb = function () {\n                var valu = this.readUnsignedExpGolomb(); // :int\n\n                if (0x01 & valu) {\n                    // the number is odd if the low order bit is set\n                    return 1 + valu >>> 1; // add 1 to make it even, and divide by 2\n                }\n\n                return -1 * (valu >>> 1); // divide by two then make it negative\n            }; // Some convenience functions\n            // :Boolean\n\n            this.readBoolean = function () {\n                return this.readBits(1) === 1;\n            }; // ():int\n\n            this.readUnsignedByte = function () {\n                return this.readBits(8);\n            };\n            this.loadWord();\n        };\n        var expGolomb = ExpGolomb$1;\n        /**\n         * mux.js\n         *\n         * Copyright (c) Brightcove\n         * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE\n         */\n\n        var Stream$2 = stream;\n        var ExpGolomb = expGolomb;\n        var H264Stream$1, NalByteStream;\n        var PROFILES_WITH_OPTIONAL_SPS_DATA;\n        /**\n         * Accepts a NAL unit byte stream and unpacks the embedded NAL units.\n         */\n\n        NalByteStream = function () {\n            var syncPoint = 0,\n                i,\n                buffer;\n            NalByteStream.prototype.init.call(this);\n            /*\n       * Scans a byte stream and triggers a data event with the NAL units found.\n       * @param {Object} data Event received from H264Stream\n       * @param {Uint8Array} data.data The h264 byte stream to be scanned\n       *\n       * @see H264Stream.push\n       */\n\n            this.push = function (data) {\n                var swapBuffer;\n                if (!buffer) {\n                    buffer = data.data;\n                } else {\n                    swapBuffer = new Uint8Array(buffer.byteLength + data.data.byteLength);\n                    swapBuffer.set(buffer);\n                    swapBuffer.set(data.data, buffer.byteLength);\n                    buffer = swapBuffer;\n                }\n                var len = buffer.byteLength; // Rec. ITU-T H.264, Annex B\n                // scan for NAL unit boundaries\n                // a match looks like this:\n                // 0 0 1 .. NAL .. 0 0 1\n                // ^ sync point        ^ i\n                // or this:\n                // 0 0 1 .. NAL .. 0 0 0\n                // ^ sync point        ^ i\n                // advance the sync point to a NAL start, if necessary\n\n                for (; syncPoint < len - 3; syncPoint++) {\n                    if (buffer[syncPoint + 2] === 1) {\n                        // the sync point is properly aligned\n                        i = syncPoint + 5;\n                        break;\n                    }\n                }\n                while (i < len) {\n                    // look at the current byte to determine if we've hit the end of\n                    // a NAL unit boundary\n                    switch (buffer[i]) {\n                        case 0:\n                            // skip past non-sync sequences\n                            if (buffer[i - 1] !== 0) {\n                                i += 2;\n                                break;\n                            } else if (buffer[i - 2] !== 0) {\n                                i++;\n                                break;\n                            } // deliver the NAL unit if it isn't empty\n\n                            if (syncPoint + 3 !== i - 2) {\n                                this.trigger('data', buffer.subarray(syncPoint + 3, i - 2));\n                            } // drop trailing zeroes\n\n                            do {\n                                i++;\n                            } while (buffer[i] !== 1 && i < len);\n                            syncPoint = i - 2;\n                            i += 3;\n                            break;\n                        case 1:\n                            // skip past non-sync sequences\n                            if (buffer[i - 1] !== 0 || buffer[i - 2] !== 0) {\n                                i += 3;\n                                break;\n                            } // deliver the NAL unit\n\n                            this.trigger('data', buffer.subarray(syncPoint + 3, i - 2));\n                            syncPoint = i - 2;\n                            i += 3;\n                            break;\n                        default:\n                            // the current byte isn't a one or zero, so it cannot be part\n                            // of a sync sequence\n                            i += 3;\n                            break;\n                    }\n                } // filter out the NAL units that were delivered\n\n                buffer = buffer.subarray(syncPoint);\n                i -= syncPoint;\n                syncPoint = 0;\n            };\n            this.reset = function () {\n                buffer = null;\n                syncPoint = 0;\n                this.trigger('reset');\n            };\n            this.flush = function () {\n                // deliver the last buffered NAL unit\n                if (buffer && buffer.byteLength > 3) {\n                    this.trigger('data', buffer.subarray(syncPoint + 3));\n                } // reset the stream state\n\n                buffer = null;\n                syncPoint = 0;\n                this.trigger('done');\n            };\n            this.endTimeline = function () {\n                this.flush();\n                this.trigger('endedtimeline');\n            };\n        };\n        NalByteStream.prototype = new Stream$2(); // values of profile_idc that indicate additional fields are included in the SPS\n        // see Recommendation ITU-T H.264 (4/2013),\n        // 7.3.2.1.1 Sequence parameter set data syntax\n\n        PROFILES_WITH_OPTIONAL_SPS_DATA = {\n            100: true,\n            110: true,\n            122: true,\n            244: true,\n            44: true,\n            83: true,\n            86: true,\n            118: true,\n            128: true,\n            // TODO: the three profiles below don't\n            // appear to have sps data in the specificiation anymore?\n            138: true,\n            139: true,\n            134: true\n        };\n        /**\n         * Accepts input from a ElementaryStream and produces H.264 NAL unit data\n         * events.\n         */\n\n        H264Stream$1 = function () {\n            var nalByteStream = new NalByteStream(),\n                self,\n                trackId,\n                currentPts,\n                currentDts,\n                discardEmulationPreventionBytes,\n                readSequenceParameterSet,\n                skipScalingList;\n            H264Stream$1.prototype.init.call(this);\n            self = this;\n            /*\n       * Pushes a packet from a stream onto the NalByteStream\n       *\n       * @param {Object} packet - A packet received from a stream\n       * @param {Uint8Array} packet.data - The raw bytes of the packet\n       * @param {Number} packet.dts - Decode timestamp of the packet\n       * @param {Number} packet.pts - Presentation timestamp of the packet\n       * @param {Number} packet.trackId - The id of the h264 track this packet came from\n       * @param {('video'|'audio')} packet.type - The type of packet\n       *\n       */\n\n            this.push = function (packet) {\n                if (packet.type !== 'video') {\n                    return;\n                }\n                trackId = packet.trackId;\n                currentPts = packet.pts;\n                currentDts = packet.dts;\n                nalByteStream.push(packet);\n            };\n            /*\n       * Identify NAL unit types and pass on the NALU, trackId, presentation and decode timestamps\n       * for the NALUs to the next stream component.\n       * Also, preprocess caption and sequence parameter NALUs.\n       *\n       * @param {Uint8Array} data - A NAL unit identified by `NalByteStream.push`\n       * @see NalByteStream.push\n       */\n\n            nalByteStream.on('data', function (data) {\n                var event = {\n                    trackId: trackId,\n                    pts: currentPts,\n                    dts: currentDts,\n                    data: data,\n                    nalUnitTypeCode: data[0] & 0x1f\n                };\n                switch (event.nalUnitTypeCode) {\n                    case 0x05:\n                        event.nalUnitType = 'slice_layer_without_partitioning_rbsp_idr';\n                        break;\n                    case 0x06:\n                        event.nalUnitType = 'sei_rbsp';\n                        event.escapedRBSP = discardEmulationPreventionBytes(data.subarray(1));\n                        break;\n                    case 0x07:\n                        event.nalUnitType = 'seq_parameter_set_rbsp';\n                        event.escapedRBSP = discardEmulationPreventionBytes(data.subarray(1));\n                        event.config = readSequenceParameterSet(event.escapedRBSP);\n                        break;\n                    case 0x08:\n                        event.nalUnitType = 'pic_parameter_set_rbsp';\n                        break;\n                    case 0x09:\n                        event.nalUnitType = 'access_unit_delimiter_rbsp';\n                        break;\n                } // This triggers data on the H264Stream\n\n                self.trigger('data', event);\n            });\n            nalByteStream.on('done', function () {\n                self.trigger('done');\n            });\n            nalByteStream.on('partialdone', function () {\n                self.trigger('partialdone');\n            });\n            nalByteStream.on('reset', function () {\n                self.trigger('reset');\n            });\n            nalByteStream.on('endedtimeline', function () {\n                self.trigger('endedtimeline');\n            });\n            this.flush = function () {\n                nalByteStream.flush();\n            };\n            this.partialFlush = function () {\n                nalByteStream.partialFlush();\n            };\n            this.reset = function () {\n                nalByteStream.reset();\n            };\n            this.endTimeline = function () {\n                nalByteStream.endTimeline();\n            };\n            /**\n             * Advance the ExpGolomb decoder past a scaling list. The scaling\n             * list is optionally transmitted as part of a sequence parameter\n             * set and is not relevant to transmuxing.\n             * @param count {number} the number of entries in this scaling list\n             * @param expGolombDecoder {object} an ExpGolomb pointed to the\n             * start of a scaling list\n             * @see Recommendation ITU-T H.264, Section 7.3.2.1.1.1\n             */\n\n            skipScalingList = function (count, expGolombDecoder) {\n                var lastScale = 8,\n                    nextScale = 8,\n                    j,\n                    deltaScale;\n                for (j = 0; j < count; j++) {\n                    if (nextScale !== 0) {\n                        deltaScale = expGolombDecoder.readExpGolomb();\n                        nextScale = (lastScale + deltaScale + 256) % 256;\n                    }\n                    lastScale = nextScale === 0 ? lastScale : nextScale;\n                }\n            };\n            /**\n             * Expunge any \"Emulation Prevention\" bytes from a \"Raw Byte\n             * Sequence Payload\"\n             * @param data {Uint8Array} the bytes of a RBSP from a NAL\n             * unit\n             * @return {Uint8Array} the RBSP without any Emulation\n             * Prevention Bytes\n             */\n\n            discardEmulationPreventionBytes = function (data) {\n                var length = data.byteLength,\n                    emulationPreventionBytesPositions = [],\n                    i = 1,\n                    newLength,\n                    newData; // Find all `Emulation Prevention Bytes`\n\n                while (i < length - 2) {\n                    if (data[i] === 0 && data[i + 1] === 0 && data[i + 2] === 0x03) {\n                        emulationPreventionBytesPositions.push(i + 2);\n                        i += 2;\n                    } else {\n                        i++;\n                    }\n                } // If no Emulation Prevention Bytes were found just return the original\n                // array\n\n                if (emulationPreventionBytesPositions.length === 0) {\n                    return data;\n                } // Create a new array to hold the NAL unit data\n\n                newLength = length - emulationPreventionBytesPositions.length;\n                newData = new Uint8Array(newLength);\n                var sourceIndex = 0;\n                for (i = 0; i < newLength; sourceIndex++, i++) {\n                    if (sourceIndex === emulationPreventionBytesPositions[0]) {\n                        // Skip this byte\n                        sourceIndex++; // Remove this position index\n\n                        emulationPreventionBytesPositions.shift();\n                    }\n                    newData[i] = data[sourceIndex];\n                }\n                return newData;\n            };\n            /**\n             * Read a sequence parameter set and return some interesting video\n             * properties. A sequence parameter set is the H264 metadata that\n             * describes the properties of upcoming video frames.\n             * @param data {Uint8Array} the bytes of a sequence parameter set\n             * @return {object} an object with configuration parsed from the\n             * sequence parameter set, including the dimensions of the\n             * associated video frames.\n             */\n\n            readSequenceParameterSet = function (data) {\n                var frameCropLeftOffset = 0,\n                    frameCropRightOffset = 0,\n                    frameCropTopOffset = 0,\n                    frameCropBottomOffset = 0,\n                    expGolombDecoder,\n                    profileIdc,\n                    levelIdc,\n                    profileCompatibility,\n                    chromaFormatIdc,\n                    picOrderCntType,\n                    numRefFramesInPicOrderCntCycle,\n                    picWidthInMbsMinus1,\n                    picHeightInMapUnitsMinus1,\n                    frameMbsOnlyFlag,\n                    scalingListCount,\n                    sarRatio = [1, 1],\n                    aspectRatioIdc,\n                    i;\n                expGolombDecoder = new ExpGolomb(data);\n                profileIdc = expGolombDecoder.readUnsignedByte(); // profile_idc\n\n                profileCompatibility = expGolombDecoder.readUnsignedByte(); // constraint_set[0-5]_flag\n\n                levelIdc = expGolombDecoder.readUnsignedByte(); // level_idc u(8)\n\n                expGolombDecoder.skipUnsignedExpGolomb(); // seq_parameter_set_id\n                // some profiles have more optional data we don't need\n\n                if (PROFILES_WITH_OPTIONAL_SPS_DATA[profileIdc]) {\n                    chromaFormatIdc = expGolombDecoder.readUnsignedExpGolomb();\n                    if (chromaFormatIdc === 3) {\n                        expGolombDecoder.skipBits(1); // separate_colour_plane_flag\n                    }\n\n                    expGolombDecoder.skipUnsignedExpGolomb(); // bit_depth_luma_minus8\n\n                    expGolombDecoder.skipUnsignedExpGolomb(); // bit_depth_chroma_minus8\n\n                    expGolombDecoder.skipBits(1); // qpprime_y_zero_transform_bypass_flag\n\n                    if (expGolombDecoder.readBoolean()) {\n                        // seq_scaling_matrix_present_flag\n                        scalingListCount = chromaFormatIdc !== 3 ? 8 : 12;\n                        for (i = 0; i < scalingListCount; i++) {\n                            if (expGolombDecoder.readBoolean()) {\n                                // seq_scaling_list_present_flag[ i ]\n                                if (i < 6) {\n                                    skipScalingList(16, expGolombDecoder);\n                                } else {\n                                    skipScalingList(64, expGolombDecoder);\n                                }\n                            }\n                        }\n                    }\n                }\n                expGolombDecoder.skipUnsignedExpGolomb(); // log2_max_frame_num_minus4\n\n                picOrderCntType = expGolombDecoder.readUnsignedExpGolomb();\n                if (picOrderCntType === 0) {\n                    expGolombDecoder.readUnsignedExpGolomb(); // log2_max_pic_order_cnt_lsb_minus4\n                } else if (picOrderCntType === 1) {\n                    expGolombDecoder.skipBits(1); // delta_pic_order_always_zero_flag\n\n                    expGolombDecoder.skipExpGolomb(); // offset_for_non_ref_pic\n\n                    expGolombDecoder.skipExpGolomb(); // offset_for_top_to_bottom_field\n\n                    numRefFramesInPicOrderCntCycle = expGolombDecoder.readUnsignedExpGolomb();\n                    for (i = 0; i < numRefFramesInPicOrderCntCycle; i++) {\n                        expGolombDecoder.skipExpGolomb(); // offset_for_ref_frame[ i ]\n                    }\n                }\n\n                expGolombDecoder.skipUnsignedExpGolomb(); // max_num_ref_frames\n\n                expGolombDecoder.skipBits(1); // gaps_in_frame_num_value_allowed_flag\n\n                picWidthInMbsMinus1 = expGolombDecoder.readUnsignedExpGolomb();\n                picHeightInMapUnitsMinus1 = expGolombDecoder.readUnsignedExpGolomb();\n                frameMbsOnlyFlag = expGolombDecoder.readBits(1);\n                if (frameMbsOnlyFlag === 0) {\n                    expGolombDecoder.skipBits(1); // mb_adaptive_frame_field_flag\n                }\n\n                expGolombDecoder.skipBits(1); // direct_8x8_inference_flag\n\n                if (expGolombDecoder.readBoolean()) {\n                    // frame_cropping_flag\n                    frameCropLeftOffset = expGolombDecoder.readUnsignedExpGolomb();\n                    frameCropRightOffset = expGolombDecoder.readUnsignedExpGolomb();\n                    frameCropTopOffset = expGolombDecoder.readUnsignedExpGolomb();\n                    frameCropBottomOffset = expGolombDecoder.readUnsignedExpGolomb();\n                }\n                if (expGolombDecoder.readBoolean()) {\n                    // vui_parameters_present_flag\n                    if (expGolombDecoder.readBoolean()) {\n                        // aspect_ratio_info_present_flag\n                        aspectRatioIdc = expGolombDecoder.readUnsignedByte();\n                        switch (aspectRatioIdc) {\n                            case 1:\n                                sarRatio = [1, 1];\n                                break;\n                            case 2:\n                                sarRatio = [12, 11];\n                                break;\n                            case 3:\n                                sarRatio = [10, 11];\n                                break;\n                            case 4:\n                                sarRatio = [16, 11];\n                                break;\n                            case 5:\n                                sarRatio = [40, 33];\n                                break;\n                            case 6:\n                                sarRatio = [24, 11];\n                                break;\n                            case 7:\n                                sarRatio = [20, 11];\n                                break;\n                            case 8:\n                                sarRatio = [32, 11];\n                                break;\n                            case 9:\n                                sarRatio = [80, 33];\n                                break;\n                            case 10:\n                                sarRatio = [18, 11];\n                                break;\n                            case 11:\n                                sarRatio = [15, 11];\n                                break;\n                            case 12:\n                                sarRatio = [64, 33];\n                                break;\n                            case 13:\n                                sarRatio = [160, 99];\n                                break;\n                            case 14:\n                                sarRatio = [4, 3];\n                                break;\n                            case 15:\n                                sarRatio = [3, 2];\n                                break;\n                            case 16:\n                                sarRatio = [2, 1];\n                                break;\n                            case 255:\n                            {\n                                sarRatio = [expGolombDecoder.readUnsignedByte() << 8 | expGolombDecoder.readUnsignedByte(), expGolombDecoder.readUnsignedByte() << 8 | expGolombDecoder.readUnsignedByte()];\n                                break;\n                            }\n                        }\n                        if (sarRatio) {\n                            sarRatio[0] / sarRatio[1];\n                        }\n                    }\n                }\n                return {\n                    profileIdc: profileIdc,\n                    levelIdc: levelIdc,\n                    profileCompatibility: profileCompatibility,\n                    width: (picWidthInMbsMinus1 + 1) * 16 - frameCropLeftOffset * 2 - frameCropRightOffset * 2,\n                    height: (2 - frameMbsOnlyFlag) * (picHeightInMapUnitsMinus1 + 1) * 16 - frameCropTopOffset * 2 - frameCropBottomOffset * 2,\n                    // sar is sample aspect ratio\n                    sarRatio: sarRatio\n                };\n            };\n        };\n        H264Stream$1.prototype = new Stream$2();\n        var h264 = {\n            H264Stream: H264Stream$1,\n            NalByteStream: NalByteStream\n        };\n        /**\n         * mux.js\n         *\n         * Copyright (c) Brightcove\n         * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE\n         *\n         * Utilities to detect basic properties and metadata about Aac data.\n         */\n\n        var ADTS_SAMPLING_FREQUENCIES = [96000, 88200, 64000, 48000, 44100, 32000, 24000, 22050, 16000, 12000, 11025, 8000, 7350];\n        var parseId3TagSize = function (header, byteIndex) {\n            var returnSize = header[byteIndex + 6] << 21 | header[byteIndex + 7] << 14 | header[byteIndex + 8] << 7 | header[byteIndex + 9],\n                flags = header[byteIndex + 5],\n                footerPresent = (flags & 16) >> 4; // if we get a negative returnSize clamp it to 0\n\n            returnSize = returnSize >= 0 ? returnSize : 0;\n            if (footerPresent) {\n                return returnSize + 20;\n            }\n            return returnSize + 10;\n        };\n        var getId3Offset = function (data, offset) {\n            if (data.length - offset < 10 || data[offset] !== 'I'.charCodeAt(0) || data[offset + 1] !== 'D'.charCodeAt(0) || data[offset + 2] !== '3'.charCodeAt(0)) {\n                return offset;\n            }\n            offset += parseId3TagSize(data, offset);\n            return getId3Offset(data, offset);\n        }; // TODO: use vhs-utils\n\n        var isLikelyAacData$1 = function (data) {\n            var offset = getId3Offset(data, 0);\n            return data.length >= offset + 2 && (data[offset] & 0xFF) === 0xFF && (data[offset + 1] & 0xF0) === 0xF0 &&\n                // verify that the 2 layer bits are 0, aka this\n                // is not mp3 data but aac data.\n                (data[offset + 1] & 0x16) === 0x10;\n        };\n        var parseSyncSafeInteger = function (data) {\n            return data[0] << 21 | data[1] << 14 | data[2] << 7 | data[3];\n        }; // return a percent-encoded representation of the specified byte range\n        // @see http://en.wikipedia.org/wiki/Percent-encoding\n\n        var percentEncode = function (bytes, start, end) {\n            var i,\n                result = '';\n            for (i = start; i < end; i++) {\n                result += '%' + ('00' + bytes[i].toString(16)).slice(-2);\n            }\n            return result;\n        }; // return the string representation of the specified byte range,\n        // interpreted as ISO-8859-1.\n\n        var parseIso88591 = function (bytes, start, end) {\n            return unescape(percentEncode(bytes, start, end)); // jshint ignore:line\n        };\n\n        var parseAdtsSize = function (header, byteIndex) {\n            var lowThree = (header[byteIndex + 5] & 0xE0) >> 5,\n                middle = header[byteIndex + 4] << 3,\n                highTwo = header[byteIndex + 3] & 0x3 << 11;\n            return highTwo | middle | lowThree;\n        };\n        var parseType$4 = function (header, byteIndex) {\n            if (header[byteIndex] === 'I'.charCodeAt(0) && header[byteIndex + 1] === 'D'.charCodeAt(0) && header[byteIndex + 2] === '3'.charCodeAt(0)) {\n                return 'timed-metadata';\n            } else if (header[byteIndex] & 0xff === 0xff && (header[byteIndex + 1] & 0xf0) === 0xf0) {\n                return 'audio';\n            }\n            return null;\n        };\n        var parseSampleRate = function (packet) {\n            var i = 0;\n            while (i + 5 < packet.length) {\n                if (packet[i] !== 0xFF || (packet[i + 1] & 0xF6) !== 0xF0) {\n                    // If a valid header was not found,  jump one forward and attempt to\n                    // find a valid ADTS header starting at the next byte\n                    i++;\n                    continue;\n                }\n                return ADTS_SAMPLING_FREQUENCIES[(packet[i + 2] & 0x3c) >>> 2];\n            }\n            return null;\n        };\n        var parseAacTimestamp = function (packet) {\n            var frameStart, frameSize, frame, frameHeader; // find the start of the first frame and the end of the tag\n\n            frameStart = 10;\n            if (packet[5] & 0x40) {\n                // advance the frame start past the extended header\n                frameStart += 4; // header size field\n\n                frameStart += parseSyncSafeInteger(packet.subarray(10, 14));\n            } // parse one or more ID3 frames\n            // http://id3.org/id3v2.3.0#ID3v2_frame_overview\n\n            do {\n                // determine the number of bytes in this frame\n                frameSize = parseSyncSafeInteger(packet.subarray(frameStart + 4, frameStart + 8));\n                if (frameSize < 1) {\n                    return null;\n                }\n                frameHeader = String.fromCharCode(packet[frameStart], packet[frameStart + 1], packet[frameStart + 2], packet[frameStart + 3]);\n                if (frameHeader === 'PRIV') {\n                    frame = packet.subarray(frameStart + 10, frameStart + frameSize + 10);\n                    for (var i = 0; i < frame.byteLength; i++) {\n                        if (frame[i] === 0) {\n                            var owner = parseIso88591(frame, 0, i);\n                            if (owner === 'com.apple.streaming.transportStreamTimestamp') {\n                                var d = frame.subarray(i + 1);\n                                var size = (d[3] & 0x01) << 30 | d[4] << 22 | d[5] << 14 | d[6] << 6 | d[7] >>> 2;\n                                size *= 4;\n                                size += d[7] & 0x03;\n                                return size;\n                            }\n                            break;\n                        }\n                    }\n                }\n                frameStart += 10; // advance past the frame header\n\n                frameStart += frameSize; // advance past the frame body\n            } while (frameStart < packet.byteLength);\n            return null;\n        };\n        var utils = {\n            isLikelyAacData: isLikelyAacData$1,\n            parseId3TagSize: parseId3TagSize,\n            parseAdtsSize: parseAdtsSize,\n            parseType: parseType$4,\n            parseSampleRate: parseSampleRate,\n            parseAacTimestamp: parseAacTimestamp\n        };\n        /**\n         * mux.js\n         *\n         * Copyright (c) Brightcove\n         * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE\n         *\n         * A stream-based aac to mp4 converter. This utility can be used to\n         * deliver mp4s to a SourceBuffer on platforms that support native\n         * Media Source Extensions.\n         */\n\n        var Stream$1 = stream;\n        var aacUtils = utils; // Constants\n\n        var AacStream$1;\n        /**\n         * Splits an incoming stream of binary data into ADTS and ID3 Frames.\n         */\n\n        AacStream$1 = function () {\n            var everything = new Uint8Array(),\n                timeStamp = 0;\n            AacStream$1.prototype.init.call(this);\n            this.setTimestamp = function (timestamp) {\n                timeStamp = timestamp;\n            };\n            this.push = function (bytes) {\n                var frameSize = 0,\n                    byteIndex = 0,\n                    bytesLeft,\n                    chunk,\n                    packet,\n                    tempLength; // If there are bytes remaining from the last segment, prepend them to the\n                // bytes that were pushed in\n\n                if (everything.length) {\n                    tempLength = everything.length;\n                    everything = new Uint8Array(bytes.byteLength + tempLength);\n                    everything.set(everything.subarray(0, tempLength));\n                    everything.set(bytes, tempLength);\n                } else {\n                    everything = bytes;\n                }\n                while (everything.length - byteIndex >= 3) {\n                    if (everything[byteIndex] === 'I'.charCodeAt(0) && everything[byteIndex + 1] === 'D'.charCodeAt(0) && everything[byteIndex + 2] === '3'.charCodeAt(0)) {\n                        // Exit early because we don't have enough to parse\n                        // the ID3 tag header\n                        if (everything.length - byteIndex < 10) {\n                            break;\n                        } // check framesize\n\n                        frameSize = aacUtils.parseId3TagSize(everything, byteIndex); // Exit early if we don't have enough in the buffer\n                        // to emit a full packet\n                        // Add to byteIndex to support multiple ID3 tags in sequence\n\n                        if (byteIndex + frameSize > everything.length) {\n                            break;\n                        }\n                        chunk = {\n                            type: 'timed-metadata',\n                            data: everything.subarray(byteIndex, byteIndex + frameSize)\n                        };\n                        this.trigger('data', chunk);\n                        byteIndex += frameSize;\n                        continue;\n                    } else if ((everything[byteIndex] & 0xff) === 0xff && (everything[byteIndex + 1] & 0xf0) === 0xf0) {\n                        // Exit early because we don't have enough to parse\n                        // the ADTS frame header\n                        if (everything.length - byteIndex < 7) {\n                            break;\n                        }\n                        frameSize = aacUtils.parseAdtsSize(everything, byteIndex); // Exit early if we don't have enough in the buffer\n                        // to emit a full packet\n\n                        if (byteIndex + frameSize > everything.length) {\n                            break;\n                        }\n                        packet = {\n                            type: 'audio',\n                            data: everything.subarray(byteIndex, byteIndex + frameSize),\n                            pts: timeStamp,\n                            dts: timeStamp\n                        };\n                        this.trigger('data', packet);\n                        byteIndex += frameSize;\n                        continue;\n                    }\n                    byteIndex++;\n                }\n                bytesLeft = everything.length - byteIndex;\n                if (bytesLeft > 0) {\n                    everything = everything.subarray(byteIndex);\n                } else {\n                    everything = new Uint8Array();\n                }\n            };\n            this.reset = function () {\n                everything = new Uint8Array();\n                this.trigger('reset');\n            };\n            this.endTimeline = function () {\n                everything = new Uint8Array();\n                this.trigger('endedtimeline');\n            };\n        };\n        AacStream$1.prototype = new Stream$1();\n        var aac = AacStream$1;\n        var AUDIO_PROPERTIES$1 = ['audioobjecttype', 'channelcount', 'samplerate', 'samplingfrequencyindex', 'samplesize'];\n        var audioProperties = AUDIO_PROPERTIES$1;\n        var VIDEO_PROPERTIES$1 = ['width', 'height', 'profileIdc', 'levelIdc', 'profileCompatibility', 'sarRatio'];\n        var videoProperties = VIDEO_PROPERTIES$1;\n        /**\n         * mux.js\n         *\n         * Copyright (c) Brightcove\n         * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE\n         *\n         * A stream-based mp2t to mp4 converter. This utility can be used to\n         * deliver mp4s to a SourceBuffer on platforms that support native\n         * Media Source Extensions.\n         */\n\n        var Stream = stream;\n        var mp4 = mp4Generator;\n        var frameUtils = frameUtils$1;\n        var audioFrameUtils = audioFrameUtils$1;\n        var trackDecodeInfo = trackDecodeInfo$1;\n        var m2ts = m2ts_1;\n        var clock = clock$2;\n        var AdtsStream = adts;\n        var H264Stream = h264.H264Stream;\n        var AacStream = aac;\n        var isLikelyAacData = utils.isLikelyAacData;\n        var ONE_SECOND_IN_TS$1 = clock$2.ONE_SECOND_IN_TS;\n        var AUDIO_PROPERTIES = audioProperties;\n        var VIDEO_PROPERTIES = videoProperties; // object types\n\n        var VideoSegmentStream, AudioSegmentStream, Transmuxer, CoalesceStream;\n        var retriggerForStream = function (key, event) {\n            event.stream = key;\n            this.trigger('log', event);\n        };\n        var addPipelineLogRetriggers = function (transmuxer, pipeline) {\n            var keys = Object.keys(pipeline);\n            for (var i = 0; i < keys.length; i++) {\n                var key = keys[i]; // skip non-stream keys and headOfPipeline\n                // which is just a duplicate\n\n                if (key === 'headOfPipeline' || !pipeline[key].on) {\n                    continue;\n                }\n                pipeline[key].on('log', retriggerForStream.bind(transmuxer, key));\n            }\n        };\n        /**\n         * Compare two arrays (even typed) for same-ness\n         */\n\n        var arrayEquals = function (a, b) {\n            var i;\n            if (a.length !== b.length) {\n                return false;\n            } // compare the value of each element in the array\n\n            for (i = 0; i < a.length; i++) {\n                if (a[i] !== b[i]) {\n                    return false;\n                }\n            }\n            return true;\n        };\n        var generateSegmentTimingInfo = function (baseMediaDecodeTime, startDts, startPts, endDts, endPts, prependedContentDuration) {\n            var ptsOffsetFromDts = startPts - startDts,\n                decodeDuration = endDts - startDts,\n                presentationDuration = endPts - startPts; // The PTS and DTS values are based on the actual stream times from the segment,\n            // however, the player time values will reflect a start from the baseMediaDecodeTime.\n            // In order to provide relevant values for the player times, base timing info on the\n            // baseMediaDecodeTime and the DTS and PTS durations of the segment.\n\n            return {\n                start: {\n                    dts: baseMediaDecodeTime,\n                    pts: baseMediaDecodeTime + ptsOffsetFromDts\n                },\n                end: {\n                    dts: baseMediaDecodeTime + decodeDuration,\n                    pts: baseMediaDecodeTime + presentationDuration\n                },\n                prependedContentDuration: prependedContentDuration,\n                baseMediaDecodeTime: baseMediaDecodeTime\n            };\n        };\n        /**\n         * Constructs a single-track, ISO BMFF media segment from AAC data\n         * events. The output of this stream can be fed to a SourceBuffer\n         * configured with a suitable initialization segment.\n         * @param track {object} track metadata configuration\n         * @param options {object} transmuxer options object\n         * @param options.keepOriginalTimestamps {boolean} If true, keep the timestamps\n         *        in the source; false to adjust the first segment to start at 0.\n         */\n\n        AudioSegmentStream = function (track, options) {\n            var adtsFrames = [],\n                sequenceNumber,\n                earliestAllowedDts = 0,\n                audioAppendStartTs = 0,\n                videoBaseMediaDecodeTime = Infinity;\n            options = options || {};\n            sequenceNumber = options.firstSequenceNumber || 0;\n            AudioSegmentStream.prototype.init.call(this);\n            this.push = function (data) {\n                trackDecodeInfo.collectDtsInfo(track, data);\n                if (track) {\n                    AUDIO_PROPERTIES.forEach(function (prop) {\n                        track[prop] = data[prop];\n                    });\n                } // buffer audio data until end() is called\n\n                adtsFrames.push(data);\n            };\n            this.setEarliestDts = function (earliestDts) {\n                earliestAllowedDts = earliestDts;\n            };\n            this.setVideoBaseMediaDecodeTime = function (baseMediaDecodeTime) {\n                videoBaseMediaDecodeTime = baseMediaDecodeTime;\n            };\n            this.setAudioAppendStart = function (timestamp) {\n                audioAppendStartTs = timestamp;\n            };\n            this.flush = function () {\n                var frames, moof, mdat, boxes, frameDuration, segmentDuration, videoClockCyclesOfSilencePrefixed; // return early if no audio data has been observed\n\n                if (adtsFrames.length === 0) {\n                    this.trigger('done', 'AudioSegmentStream');\n                    return;\n                }\n                frames = audioFrameUtils.trimAdtsFramesByEarliestDts(adtsFrames, track, earliestAllowedDts);\n                track.baseMediaDecodeTime = trackDecodeInfo.calculateTrackBaseMediaDecodeTime(track, options.keepOriginalTimestamps); // amount of audio filled but the value is in video clock rather than audio clock\n\n                videoClockCyclesOfSilencePrefixed = audioFrameUtils.prefixWithSilence(track, frames, audioAppendStartTs, videoBaseMediaDecodeTime); // we have to build the index from byte locations to\n                // samples (that is, adts frames) in the audio data\n\n                track.samples = audioFrameUtils.generateSampleTable(frames); // concatenate the audio data to constuct the mdat\n\n                mdat = mp4.mdat(audioFrameUtils.concatenateFrameData(frames));\n                adtsFrames = [];\n                moof = mp4.moof(sequenceNumber, [track]);\n                boxes = new Uint8Array(moof.byteLength + mdat.byteLength); // bump the sequence number for next time\n\n                sequenceNumber++;\n                boxes.set(moof);\n                boxes.set(mdat, moof.byteLength);\n                trackDecodeInfo.clearDtsInfo(track);\n                frameDuration = Math.ceil(ONE_SECOND_IN_TS$1 * 1024 / track.samplerate); // TODO this check was added to maintain backwards compatibility (particularly with\n                // tests) on adding the timingInfo event. However, it seems unlikely that there's a\n                // valid use-case where an init segment/data should be triggered without associated\n                // frames. Leaving for now, but should be looked into.\n\n                if (frames.length) {\n                    segmentDuration = frames.length * frameDuration;\n                    this.trigger('segmentTimingInfo', generateSegmentTimingInfo(\n                        // The audio track's baseMediaDecodeTime is in audio clock cycles, but the\n                        // frame info is in video clock cycles. Convert to match expectation of\n                        // listeners (that all timestamps will be based on video clock cycles).\n                        clock.audioTsToVideoTs(track.baseMediaDecodeTime, track.samplerate),\n                        // frame times are already in video clock, as is segment duration\n                        frames[0].dts, frames[0].pts, frames[0].dts + segmentDuration, frames[0].pts + segmentDuration, videoClockCyclesOfSilencePrefixed || 0));\n                    this.trigger('timingInfo', {\n                        start: frames[0].pts,\n                        end: frames[0].pts + segmentDuration\n                    });\n                }\n                this.trigger('data', {\n                    track: track,\n                    boxes: boxes\n                });\n                this.trigger('done', 'AudioSegmentStream');\n            };\n            this.reset = function () {\n                trackDecodeInfo.clearDtsInfo(track);\n                adtsFrames = [];\n                this.trigger('reset');\n            };\n        };\n        AudioSegmentStream.prototype = new Stream();\n        /**\n         * Constructs a single-track, ISO BMFF media segment from H264 data\n         * events. The output of this stream can be fed to a SourceBuffer\n         * configured with a suitable initialization segment.\n         * @param track {object} track metadata configuration\n         * @param options {object} transmuxer options object\n         * @param options.alignGopsAtEnd {boolean} If true, start from the end of the\n         *        gopsToAlignWith list when attempting to align gop pts\n         * @param options.keepOriginalTimestamps {boolean} If true, keep the timestamps\n         *        in the source; false to adjust the first segment to start at 0.\n         */\n\n        VideoSegmentStream = function (track, options) {\n            var sequenceNumber,\n                nalUnits = [],\n                gopsToAlignWith = [],\n                config,\n                pps;\n            options = options || {};\n            sequenceNumber = options.firstSequenceNumber || 0;\n            VideoSegmentStream.prototype.init.call(this);\n            delete track.minPTS;\n            this.gopCache_ = [];\n            /**\n             * Constructs a ISO BMFF segment given H264 nalUnits\n             * @param {Object} nalUnit A data event representing a nalUnit\n             * @param {String} nalUnit.nalUnitType\n             * @param {Object} nalUnit.config Properties for a mp4 track\n             * @param {Uint8Array} nalUnit.data The nalUnit bytes\n             * @see lib/codecs/h264.js\n             **/\n\n            this.push = function (nalUnit) {\n                trackDecodeInfo.collectDtsInfo(track, nalUnit); // record the track config\n\n                if (nalUnit.nalUnitType === 'seq_parameter_set_rbsp' && !config) {\n                    config = nalUnit.config;\n                    track.sps = [nalUnit.data];\n                    VIDEO_PROPERTIES.forEach(function (prop) {\n                        track[prop] = config[prop];\n                    }, this);\n                }\n                if (nalUnit.nalUnitType === 'pic_parameter_set_rbsp' && !pps) {\n                    pps = nalUnit.data;\n                    track.pps = [nalUnit.data];\n                } // buffer video until flush() is called\n\n                nalUnits.push(nalUnit);\n            };\n            /**\n             * Pass constructed ISO BMFF track and boxes on to the\n             * next stream in the pipeline\n             **/\n\n            this.flush = function () {\n                var frames,\n                    gopForFusion,\n                    gops,\n                    moof,\n                    mdat,\n                    boxes,\n                    prependedContentDuration = 0,\n                    firstGop,\n                    lastGop; // Throw away nalUnits at the start of the byte stream until\n                // we find the first AUD\n\n                while (nalUnits.length) {\n                    if (nalUnits[0].nalUnitType === 'access_unit_delimiter_rbsp') {\n                        break;\n                    }\n                    nalUnits.shift();\n                } // Return early if no video data has been observed\n\n                if (nalUnits.length === 0) {\n                    this.resetStream_();\n                    this.trigger('done', 'VideoSegmentStream');\n                    return;\n                } // Organize the raw nal-units into arrays that represent\n                // higher-level constructs such as frames and gops\n                // (group-of-pictures)\n\n                frames = frameUtils.groupNalsIntoFrames(nalUnits);\n                gops = frameUtils.groupFramesIntoGops(frames); // If the first frame of this fragment is not a keyframe we have\n                // a problem since MSE (on Chrome) requires a leading keyframe.\n                //\n                // We have two approaches to repairing this situation:\n                // 1) GOP-FUSION:\n                //    This is where we keep track of the GOPS (group-of-pictures)\n                //    from previous fragments and attempt to find one that we can\n                //    prepend to the current fragment in order to create a valid\n                //    fragment.\n                // 2) KEYFRAME-PULLING:\n                //    Here we search for the first keyframe in the fragment and\n                //    throw away all the frames between the start of the fragment\n                //    and that keyframe. We then extend the duration and pull the\n                //    PTS of the keyframe forward so that it covers the time range\n                //    of the frames that were disposed of.\n                //\n                // #1 is far prefereable over #2 which can cause \"stuttering\" but\n                // requires more things to be just right.\n\n                if (!gops[0][0].keyFrame) {\n                    // Search for a gop for fusion from our gopCache\n                    gopForFusion = this.getGopForFusion_(nalUnits[0], track);\n                    if (gopForFusion) {\n                        // in order to provide more accurate timing information about the segment, save\n                        // the number of seconds prepended to the original segment due to GOP fusion\n                        prependedContentDuration = gopForFusion.duration;\n                        gops.unshift(gopForFusion); // Adjust Gops' metadata to account for the inclusion of the\n                        // new gop at the beginning\n\n                        gops.byteLength += gopForFusion.byteLength;\n                        gops.nalCount += gopForFusion.nalCount;\n                        gops.pts = gopForFusion.pts;\n                        gops.dts = gopForFusion.dts;\n                        gops.duration += gopForFusion.duration;\n                    } else {\n                        // If we didn't find a candidate gop fall back to keyframe-pulling\n                        gops = frameUtils.extendFirstKeyFrame(gops);\n                    }\n                } // Trim gops to align with gopsToAlignWith\n\n                if (gopsToAlignWith.length) {\n                    var alignedGops;\n                    if (options.alignGopsAtEnd) {\n                        alignedGops = this.alignGopsAtEnd_(gops);\n                    } else {\n                        alignedGops = this.alignGopsAtStart_(gops);\n                    }\n                    if (!alignedGops) {\n                        // save all the nals in the last GOP into the gop cache\n                        this.gopCache_.unshift({\n                            gop: gops.pop(),\n                            pps: track.pps,\n                            sps: track.sps\n                        }); // Keep a maximum of 6 GOPs in the cache\n\n                        this.gopCache_.length = Math.min(6, this.gopCache_.length); // Clear nalUnits\n\n                        nalUnits = []; // return early no gops can be aligned with desired gopsToAlignWith\n\n                        this.resetStream_();\n                        this.trigger('done', 'VideoSegmentStream');\n                        return;\n                    } // Some gops were trimmed. clear dts info so minSegmentDts and pts are correct\n                    // when recalculated before sending off to CoalesceStream\n\n                    trackDecodeInfo.clearDtsInfo(track);\n                    gops = alignedGops;\n                }\n                trackDecodeInfo.collectDtsInfo(track, gops); // First, we have to build the index from byte locations to\n                // samples (that is, frames) in the video data\n\n                track.samples = frameUtils.generateSampleTable(gops); // Concatenate the video data and construct the mdat\n\n                mdat = mp4.mdat(frameUtils.concatenateNalData(gops));\n                track.baseMediaDecodeTime = trackDecodeInfo.calculateTrackBaseMediaDecodeTime(track, options.keepOriginalTimestamps);\n                this.trigger('processedGopsInfo', gops.map(function (gop) {\n                    return {\n                        pts: gop.pts,\n                        dts: gop.dts,\n                        byteLength: gop.byteLength\n                    };\n                }));\n                firstGop = gops[0];\n                lastGop = gops[gops.length - 1];\n                this.trigger('segmentTimingInfo', generateSegmentTimingInfo(track.baseMediaDecodeTime, firstGop.dts, firstGop.pts, lastGop.dts + lastGop.duration, lastGop.pts + lastGop.duration, prependedContentDuration));\n                this.trigger('timingInfo', {\n                    start: gops[0].pts,\n                    end: gops[gops.length - 1].pts + gops[gops.length - 1].duration\n                }); // save all the nals in the last GOP into the gop cache\n\n                this.gopCache_.unshift({\n                    gop: gops.pop(),\n                    pps: track.pps,\n                    sps: track.sps\n                }); // Keep a maximum of 6 GOPs in the cache\n\n                this.gopCache_.length = Math.min(6, this.gopCache_.length); // Clear nalUnits\n\n                nalUnits = [];\n                this.trigger('baseMediaDecodeTime', track.baseMediaDecodeTime);\n                this.trigger('timelineStartInfo', track.timelineStartInfo);\n                moof = mp4.moof(sequenceNumber, [track]); // it would be great to allocate this array up front instead of\n                // throwing away hundreds of media segment fragments\n\n                boxes = new Uint8Array(moof.byteLength + mdat.byteLength); // Bump the sequence number for next time\n\n                sequenceNumber++;\n                boxes.set(moof);\n                boxes.set(mdat, moof.byteLength);\n                this.trigger('data', {\n                    track: track,\n                    boxes: boxes\n                });\n                this.resetStream_(); // Continue with the flush process now\n\n                this.trigger('done', 'VideoSegmentStream');\n            };\n            this.reset = function () {\n                this.resetStream_();\n                nalUnits = [];\n                this.gopCache_.length = 0;\n                gopsToAlignWith.length = 0;\n                this.trigger('reset');\n            };\n            this.resetStream_ = function () {\n                trackDecodeInfo.clearDtsInfo(track); // reset config and pps because they may differ across segments\n                // for instance, when we are rendition switching\n\n                config = undefined;\n                pps = undefined;\n            }; // Search for a candidate Gop for gop-fusion from the gop cache and\n            // return it or return null if no good candidate was found\n\n            this.getGopForFusion_ = function (nalUnit) {\n                var halfSecond = 45000,\n                    // Half-a-second in a 90khz clock\n                    allowableOverlap = 10000,\n                    // About 3 frames @ 30fps\n                    nearestDistance = Infinity,\n                    dtsDistance,\n                    nearestGopObj,\n                    currentGop,\n                    currentGopObj,\n                    i; // Search for the GOP nearest to the beginning of this nal unit\n\n                for (i = 0; i < this.gopCache_.length; i++) {\n                    currentGopObj = this.gopCache_[i];\n                    currentGop = currentGopObj.gop; // Reject Gops with different SPS or PPS\n\n                    if (!(track.pps && arrayEquals(track.pps[0], currentGopObj.pps[0])) || !(track.sps && arrayEquals(track.sps[0], currentGopObj.sps[0]))) {\n                        continue;\n                    } // Reject Gops that would require a negative baseMediaDecodeTime\n\n                    if (currentGop.dts < track.timelineStartInfo.dts) {\n                        continue;\n                    } // The distance between the end of the gop and the start of the nalUnit\n\n                    dtsDistance = nalUnit.dts - currentGop.dts - currentGop.duration; // Only consider GOPS that start before the nal unit and end within\n                    // a half-second of the nal unit\n\n                    if (dtsDistance >= -allowableOverlap && dtsDistance <= halfSecond) {\n                        // Always use the closest GOP we found if there is more than\n                        // one candidate\n                        if (!nearestGopObj || nearestDistance > dtsDistance) {\n                            nearestGopObj = currentGopObj;\n                            nearestDistance = dtsDistance;\n                        }\n                    }\n                }\n                if (nearestGopObj) {\n                    return nearestGopObj.gop;\n                }\n                return null;\n            }; // trim gop list to the first gop found that has a matching pts with a gop in the list\n            // of gopsToAlignWith starting from the START of the list\n\n            this.alignGopsAtStart_ = function (gops) {\n                var alignIndex, gopIndex, align, gop, byteLength, nalCount, duration, alignedGops;\n                byteLength = gops.byteLength;\n                nalCount = gops.nalCount;\n                duration = gops.duration;\n                alignIndex = gopIndex = 0;\n                while (alignIndex < gopsToAlignWith.length && gopIndex < gops.length) {\n                    align = gopsToAlignWith[alignIndex];\n                    gop = gops[gopIndex];\n                    if (align.pts === gop.pts) {\n                        break;\n                    }\n                    if (gop.pts > align.pts) {\n                        // this current gop starts after the current gop we want to align on, so increment\n                        // align index\n                        alignIndex++;\n                        continue;\n                    } // current gop starts before the current gop we want to align on. so increment gop\n                    // index\n\n                    gopIndex++;\n                    byteLength -= gop.byteLength;\n                    nalCount -= gop.nalCount;\n                    duration -= gop.duration;\n                }\n                if (gopIndex === 0) {\n                    // no gops to trim\n                    return gops;\n                }\n                if (gopIndex === gops.length) {\n                    // all gops trimmed, skip appending all gops\n                    return null;\n                }\n                alignedGops = gops.slice(gopIndex);\n                alignedGops.byteLength = byteLength;\n                alignedGops.duration = duration;\n                alignedGops.nalCount = nalCount;\n                alignedGops.pts = alignedGops[0].pts;\n                alignedGops.dts = alignedGops[0].dts;\n                return alignedGops;\n            }; // trim gop list to the first gop found that has a matching pts with a gop in the list\n            // of gopsToAlignWith starting from the END of the list\n\n            this.alignGopsAtEnd_ = function (gops) {\n                var alignIndex, gopIndex, align, gop, alignEndIndex, matchFound;\n                alignIndex = gopsToAlignWith.length - 1;\n                gopIndex = gops.length - 1;\n                alignEndIndex = null;\n                matchFound = false;\n                while (alignIndex >= 0 && gopIndex >= 0) {\n                    align = gopsToAlignWith[alignIndex];\n                    gop = gops[gopIndex];\n                    if (align.pts === gop.pts) {\n                        matchFound = true;\n                        break;\n                    }\n                    if (align.pts > gop.pts) {\n                        alignIndex--;\n                        continue;\n                    }\n                    if (alignIndex === gopsToAlignWith.length - 1) {\n                        // gop.pts is greater than the last alignment candidate. If no match is found\n                        // by the end of this loop, we still want to append gops that come after this\n                        // point\n                        alignEndIndex = gopIndex;\n                    }\n                    gopIndex--;\n                }\n                if (!matchFound && alignEndIndex === null) {\n                    return null;\n                }\n                var trimIndex;\n                if (matchFound) {\n                    trimIndex = gopIndex;\n                } else {\n                    trimIndex = alignEndIndex;\n                }\n                if (trimIndex === 0) {\n                    return gops;\n                }\n                var alignedGops = gops.slice(trimIndex);\n                var metadata = alignedGops.reduce(function (total, gop) {\n                    total.byteLength += gop.byteLength;\n                    total.duration += gop.duration;\n                    total.nalCount += gop.nalCount;\n                    return total;\n                }, {\n                    byteLength: 0,\n                    duration: 0,\n                    nalCount: 0\n                });\n                alignedGops.byteLength = metadata.byteLength;\n                alignedGops.duration = metadata.duration;\n                alignedGops.nalCount = metadata.nalCount;\n                alignedGops.pts = alignedGops[0].pts;\n                alignedGops.dts = alignedGops[0].dts;\n                return alignedGops;\n            };\n            this.alignGopsWith = function (newGopsToAlignWith) {\n                gopsToAlignWith = newGopsToAlignWith;\n            };\n        };\n        VideoSegmentStream.prototype = new Stream();\n        /**\n         * A Stream that can combine multiple streams (ie. audio & video)\n         * into a single output segment for MSE. Also supports audio-only\n         * and video-only streams.\n         * @param options {object} transmuxer options object\n         * @param options.keepOriginalTimestamps {boolean} If true, keep the timestamps\n         *        in the source; false to adjust the first segment to start at media timeline start.\n         */\n\n        CoalesceStream = function (options, metadataStream) {\n            // Number of Tracks per output segment\n            // If greater than 1, we combine multiple\n            // tracks into a single segment\n            this.numberOfTracks = 0;\n            this.metadataStream = metadataStream;\n            options = options || {};\n            if (typeof options.remux !== 'undefined') {\n                this.remuxTracks = !!options.remux;\n            } else {\n                this.remuxTracks = true;\n            }\n            if (typeof options.keepOriginalTimestamps === 'boolean') {\n                this.keepOriginalTimestamps = options.keepOriginalTimestamps;\n            } else {\n                this.keepOriginalTimestamps = false;\n            }\n            this.pendingTracks = [];\n            this.videoTrack = null;\n            this.pendingBoxes = [];\n            this.pendingCaptions = [];\n            this.pendingMetadata = [];\n            this.pendingBytes = 0;\n            this.emittedTracks = 0;\n            CoalesceStream.prototype.init.call(this); // Take output from multiple\n\n            this.push = function (output) {\n                // buffer incoming captions until the associated video segment\n                // finishes\n                if (output.text) {\n                    return this.pendingCaptions.push(output);\n                } // buffer incoming id3 tags until the final flush\n\n                if (output.frames) {\n                    return this.pendingMetadata.push(output);\n                } // Add this track to the list of pending tracks and store\n                // important information required for the construction of\n                // the final segment\n\n                this.pendingTracks.push(output.track);\n                this.pendingBytes += output.boxes.byteLength; // TODO: is there an issue for this against chrome?\n                // We unshift audio and push video because\n                // as of Chrome 75 when switching from\n                // one init segment to another if the video\n                // mdat does not appear after the audio mdat\n                // only audio will play for the duration of our transmux.\n\n                if (output.track.type === 'video') {\n                    this.videoTrack = output.track;\n                    this.pendingBoxes.push(output.boxes);\n                }\n                if (output.track.type === 'audio') {\n                    this.audioTrack = output.track;\n                    this.pendingBoxes.unshift(output.boxes);\n                }\n            };\n        };\n        CoalesceStream.prototype = new Stream();\n        CoalesceStream.prototype.flush = function (flushSource) {\n            var offset = 0,\n                event = {\n                    captions: [],\n                    captionStreams: {},\n                    metadata: [],\n                    info: {}\n                },\n                caption,\n                id3,\n                initSegment,\n                timelineStartPts = 0,\n                i;\n            if (this.pendingTracks.length < this.numberOfTracks) {\n                if (flushSource !== 'VideoSegmentStream' && flushSource !== 'AudioSegmentStream') {\n                    // Return because we haven't received a flush from a data-generating\n                    // portion of the segment (meaning that we have only recieved meta-data\n                    // or captions.)\n                    return;\n                } else if (this.remuxTracks) {\n                    // Return until we have enough tracks from the pipeline to remux (if we\n                    // are remuxing audio and video into a single MP4)\n                    return;\n                } else if (this.pendingTracks.length === 0) {\n                    // In the case where we receive a flush without any data having been\n                    // received we consider it an emitted track for the purposes of coalescing\n                    // `done` events.\n                    // We do this for the case where there is an audio and video track in the\n                    // segment but no audio data. (seen in several playlists with alternate\n                    // audio tracks and no audio present in the main TS segments.)\n                    this.emittedTracks++;\n                    if (this.emittedTracks >= this.numberOfTracks) {\n                        this.trigger('done');\n                        this.emittedTracks = 0;\n                    }\n                    return;\n                }\n            }\n            if (this.videoTrack) {\n                timelineStartPts = this.videoTrack.timelineStartInfo.pts;\n                VIDEO_PROPERTIES.forEach(function (prop) {\n                    event.info[prop] = this.videoTrack[prop];\n                }, this);\n            } else if (this.audioTrack) {\n                timelineStartPts = this.audioTrack.timelineStartInfo.pts;\n                AUDIO_PROPERTIES.forEach(function (prop) {\n                    event.info[prop] = this.audioTrack[prop];\n                }, this);\n            }\n            if (this.videoTrack || this.audioTrack) {\n                if (this.pendingTracks.length === 1) {\n                    event.type = this.pendingTracks[0].type;\n                } else {\n                    event.type = 'combined';\n                }\n                this.emittedTracks += this.pendingTracks.length;\n                initSegment = mp4.initSegment(this.pendingTracks); // Create a new typed array to hold the init segment\n\n                event.initSegment = new Uint8Array(initSegment.byteLength); // Create an init segment containing a moov\n                // and track definitions\n\n                event.initSegment.set(initSegment); // Create a new typed array to hold the moof+mdats\n\n                event.data = new Uint8Array(this.pendingBytes); // Append each moof+mdat (one per track) together\n\n                for (i = 0; i < this.pendingBoxes.length; i++) {\n                    event.data.set(this.pendingBoxes[i], offset);\n                    offset += this.pendingBoxes[i].byteLength;\n                } // Translate caption PTS times into second offsets to match the\n                // video timeline for the segment, and add track info\n\n                for (i = 0; i < this.pendingCaptions.length; i++) {\n                    caption = this.pendingCaptions[i];\n                    caption.startTime = clock.metadataTsToSeconds(caption.startPts, timelineStartPts, this.keepOriginalTimestamps);\n                    caption.endTime = clock.metadataTsToSeconds(caption.endPts, timelineStartPts, this.keepOriginalTimestamps);\n                    event.captionStreams[caption.stream] = true;\n                    event.captions.push(caption);\n                } // Translate ID3 frame PTS times into second offsets to match the\n                // video timeline for the segment\n\n                for (i = 0; i < this.pendingMetadata.length; i++) {\n                    id3 = this.pendingMetadata[i];\n                    id3.cueTime = clock.metadataTsToSeconds(id3.pts, timelineStartPts, this.keepOriginalTimestamps);\n                    event.metadata.push(id3);\n                } // We add this to every single emitted segment even though we only need\n                // it for the first\n\n                event.metadata.dispatchType = this.metadataStream.dispatchType; // Reset stream state\n\n                this.pendingTracks.length = 0;\n                this.videoTrack = null;\n                this.pendingBoxes.length = 0;\n                this.pendingCaptions.length = 0;\n                this.pendingBytes = 0;\n                this.pendingMetadata.length = 0; // Emit the built segment\n                // We include captions and ID3 tags for backwards compatibility,\n                // ideally we should send only video and audio in the data event\n\n                this.trigger('data', event); // Emit each caption to the outside world\n                // Ideally, this would happen immediately on parsing captions,\n                // but we need to ensure that video data is sent back first\n                // so that caption timing can be adjusted to match video timing\n\n                for (i = 0; i < event.captions.length; i++) {\n                    caption = event.captions[i];\n                    this.trigger('caption', caption);\n                } // Emit each id3 tag to the outside world\n                // Ideally, this would happen immediately on parsing the tag,\n                // but we need to ensure that video data is sent back first\n                // so that ID3 frame timing can be adjusted to match video timing\n\n                for (i = 0; i < event.metadata.length; i++) {\n                    id3 = event.metadata[i];\n                    this.trigger('id3Frame', id3);\n                }\n            } // Only emit `done` if all tracks have been flushed and emitted\n\n            if (this.emittedTracks >= this.numberOfTracks) {\n                this.trigger('done');\n                this.emittedTracks = 0;\n            }\n        };\n        CoalesceStream.prototype.setRemux = function (val) {\n            this.remuxTracks = val;\n        };\n        /**\n         * A Stream that expects MP2T binary data as input and produces\n         * corresponding media segments, suitable for use with Media Source\n         * Extension (MSE) implementations that support the ISO BMFF byte\n         * stream format, like Chrome.\n         */\n\n        Transmuxer = function (options) {\n            var self = this,\n                hasFlushed = true,\n                videoTrack,\n                audioTrack;\n            Transmuxer.prototype.init.call(this);\n            options = options || {};\n            this.baseMediaDecodeTime = options.baseMediaDecodeTime || 0;\n            this.transmuxPipeline_ = {};\n            this.setupAacPipeline = function () {\n                var pipeline = {};\n                this.transmuxPipeline_ = pipeline;\n                pipeline.type = 'aac';\n                pipeline.metadataStream = new m2ts.MetadataStream(); // set up the parsing pipeline\n\n                pipeline.aacStream = new AacStream();\n                pipeline.audioTimestampRolloverStream = new m2ts.TimestampRolloverStream('audio');\n                pipeline.timedMetadataTimestampRolloverStream = new m2ts.TimestampRolloverStream('timed-metadata');\n                pipeline.adtsStream = new AdtsStream();\n                pipeline.coalesceStream = new CoalesceStream(options, pipeline.metadataStream);\n                pipeline.headOfPipeline = pipeline.aacStream;\n                pipeline.aacStream.pipe(pipeline.audioTimestampRolloverStream).pipe(pipeline.adtsStream);\n                pipeline.aacStream.pipe(pipeline.timedMetadataTimestampRolloverStream).pipe(pipeline.metadataStream).pipe(pipeline.coalesceStream);\n                pipeline.metadataStream.on('timestamp', function (frame) {\n                    pipeline.aacStream.setTimestamp(frame.timeStamp);\n                });\n                pipeline.aacStream.on('data', function (data) {\n                    if (data.type !== 'timed-metadata' && data.type !== 'audio' || pipeline.audioSegmentStream) {\n                        return;\n                    }\n                    audioTrack = audioTrack || {\n                        timelineStartInfo: {\n                            baseMediaDecodeTime: self.baseMediaDecodeTime\n                        },\n                        codec: 'adts',\n                        type: 'audio'\n                    }; // hook up the audio segment stream to the first track with aac data\n\n                    pipeline.coalesceStream.numberOfTracks++;\n                    pipeline.audioSegmentStream = new AudioSegmentStream(audioTrack, options);\n                    pipeline.audioSegmentStream.on('log', self.getLogTrigger_('audioSegmentStream'));\n                    pipeline.audioSegmentStream.on('timingInfo', self.trigger.bind(self, 'audioTimingInfo')); // Set up the final part of the audio pipeline\n\n                    pipeline.adtsStream.pipe(pipeline.audioSegmentStream).pipe(pipeline.coalesceStream); // emit pmt info\n\n                    self.trigger('trackinfo', {\n                        hasAudio: !!audioTrack,\n                        hasVideo: !!videoTrack\n                    });\n                }); // Re-emit any data coming from the coalesce stream to the outside world\n\n                pipeline.coalesceStream.on('data', this.trigger.bind(this, 'data')); // Let the consumer know we have finished flushing the entire pipeline\n\n                pipeline.coalesceStream.on('done', this.trigger.bind(this, 'done'));\n                addPipelineLogRetriggers(this, pipeline);\n            };\n            this.setupTsPipeline = function () {\n                var pipeline = {};\n                this.transmuxPipeline_ = pipeline;\n                pipeline.type = 'ts';\n                pipeline.metadataStream = new m2ts.MetadataStream(); // set up the parsing pipeline\n\n                pipeline.packetStream = new m2ts.TransportPacketStream();\n                pipeline.parseStream = new m2ts.TransportParseStream();\n                pipeline.elementaryStream = new m2ts.ElementaryStream();\n                pipeline.timestampRolloverStream = new m2ts.TimestampRolloverStream();\n                pipeline.adtsStream = new AdtsStream();\n                pipeline.h264Stream = new H264Stream();\n                pipeline.captionStream = new m2ts.CaptionStream(options);\n                pipeline.coalesceStream = new CoalesceStream(options, pipeline.metadataStream);\n                pipeline.headOfPipeline = pipeline.packetStream; // disassemble MPEG2-TS packets into elementary streams\n\n                pipeline.packetStream.pipe(pipeline.parseStream).pipe(pipeline.elementaryStream).pipe(pipeline.timestampRolloverStream); // !!THIS ORDER IS IMPORTANT!!\n                // demux the streams\n\n                pipeline.timestampRolloverStream.pipe(pipeline.h264Stream);\n                pipeline.timestampRolloverStream.pipe(pipeline.adtsStream);\n                pipeline.timestampRolloverStream.pipe(pipeline.metadataStream).pipe(pipeline.coalesceStream); // Hook up CEA-608/708 caption stream\n\n                pipeline.h264Stream.pipe(pipeline.captionStream).pipe(pipeline.coalesceStream);\n                pipeline.elementaryStream.on('data', function (data) {\n                    var i;\n                    if (data.type === 'metadata') {\n                        i = data.tracks.length; // scan the tracks listed in the metadata\n\n                        while (i--) {\n                            if (!videoTrack && data.tracks[i].type === 'video') {\n                                videoTrack = data.tracks[i];\n                                videoTrack.timelineStartInfo.baseMediaDecodeTime = self.baseMediaDecodeTime;\n                            } else if (!audioTrack && data.tracks[i].type === 'audio') {\n                                audioTrack = data.tracks[i];\n                                audioTrack.timelineStartInfo.baseMediaDecodeTime = self.baseMediaDecodeTime;\n                            }\n                        } // hook up the video segment stream to the first track with h264 data\n\n                        if (videoTrack && !pipeline.videoSegmentStream) {\n                            pipeline.coalesceStream.numberOfTracks++;\n                            pipeline.videoSegmentStream = new VideoSegmentStream(videoTrack, options);\n                            pipeline.videoSegmentStream.on('log', self.getLogTrigger_('videoSegmentStream'));\n                            pipeline.videoSegmentStream.on('timelineStartInfo', function (timelineStartInfo) {\n                                // When video emits timelineStartInfo data after a flush, we forward that\n                                // info to the AudioSegmentStream, if it exists, because video timeline\n                                // data takes precedence.  Do not do this if keepOriginalTimestamps is set,\n                                // because this is a particularly subtle form of timestamp alteration.\n                                if (audioTrack && !options.keepOriginalTimestamps) {\n                                    audioTrack.timelineStartInfo = timelineStartInfo; // On the first segment we trim AAC frames that exist before the\n                                    // very earliest DTS we have seen in video because Chrome will\n                                    // interpret any video track with a baseMediaDecodeTime that is\n                                    // non-zero as a gap.\n\n                                    pipeline.audioSegmentStream.setEarliestDts(timelineStartInfo.dts - self.baseMediaDecodeTime);\n                                }\n                            });\n                            pipeline.videoSegmentStream.on('processedGopsInfo', self.trigger.bind(self, 'gopInfo'));\n                            pipeline.videoSegmentStream.on('segmentTimingInfo', self.trigger.bind(self, 'videoSegmentTimingInfo'));\n                            pipeline.videoSegmentStream.on('baseMediaDecodeTime', function (baseMediaDecodeTime) {\n                                if (audioTrack) {\n                                    pipeline.audioSegmentStream.setVideoBaseMediaDecodeTime(baseMediaDecodeTime);\n                                }\n                            });\n                            pipeline.videoSegmentStream.on('timingInfo', self.trigger.bind(self, 'videoTimingInfo')); // Set up the final part of the video pipeline\n\n                            pipeline.h264Stream.pipe(pipeline.videoSegmentStream).pipe(pipeline.coalesceStream);\n                        }\n                        if (audioTrack && !pipeline.audioSegmentStream) {\n                            // hook up the audio segment stream to the first track with aac data\n                            pipeline.coalesceStream.numberOfTracks++;\n                            pipeline.audioSegmentStream = new AudioSegmentStream(audioTrack, options);\n                            pipeline.audioSegmentStream.on('log', self.getLogTrigger_('audioSegmentStream'));\n                            pipeline.audioSegmentStream.on('timingInfo', self.trigger.bind(self, 'audioTimingInfo'));\n                            pipeline.audioSegmentStream.on('segmentTimingInfo', self.trigger.bind(self, 'audioSegmentTimingInfo')); // Set up the final part of the audio pipeline\n\n                            pipeline.adtsStream.pipe(pipeline.audioSegmentStream).pipe(pipeline.coalesceStream);\n                        } // emit pmt info\n\n                        self.trigger('trackinfo', {\n                            hasAudio: !!audioTrack,\n                            hasVideo: !!videoTrack\n                        });\n                    }\n                }); // Re-emit any data coming from the coalesce stream to the outside world\n\n                pipeline.coalesceStream.on('data', this.trigger.bind(this, 'data'));\n                pipeline.coalesceStream.on('id3Frame', function (id3Frame) {\n                    id3Frame.dispatchType = pipeline.metadataStream.dispatchType;\n                    self.trigger('id3Frame', id3Frame);\n                });\n                pipeline.coalesceStream.on('caption', this.trigger.bind(this, 'caption')); // Let the consumer know we have finished flushing the entire pipeline\n\n                pipeline.coalesceStream.on('done', this.trigger.bind(this, 'done'));\n                addPipelineLogRetriggers(this, pipeline);\n            }; // hook up the segment streams once track metadata is delivered\n\n            this.setBaseMediaDecodeTime = function (baseMediaDecodeTime) {\n                var pipeline = this.transmuxPipeline_;\n                if (!options.keepOriginalTimestamps) {\n                    this.baseMediaDecodeTime = baseMediaDecodeTime;\n                }\n                if (audioTrack) {\n                    audioTrack.timelineStartInfo.dts = undefined;\n                    audioTrack.timelineStartInfo.pts = undefined;\n                    trackDecodeInfo.clearDtsInfo(audioTrack);\n                    if (pipeline.audioTimestampRolloverStream) {\n                        pipeline.audioTimestampRolloverStream.discontinuity();\n                    }\n                }\n                if (videoTrack) {\n                    if (pipeline.videoSegmentStream) {\n                        pipeline.videoSegmentStream.gopCache_ = [];\n                    }\n                    videoTrack.timelineStartInfo.dts = undefined;\n                    videoTrack.timelineStartInfo.pts = undefined;\n                    trackDecodeInfo.clearDtsInfo(videoTrack);\n                    pipeline.captionStream.reset();\n                }\n                if (pipeline.timestampRolloverStream) {\n                    pipeline.timestampRolloverStream.discontinuity();\n                }\n            };\n            this.setAudioAppendStart = function (timestamp) {\n                if (audioTrack) {\n                    this.transmuxPipeline_.audioSegmentStream.setAudioAppendStart(timestamp);\n                }\n            };\n            this.setRemux = function (val) {\n                var pipeline = this.transmuxPipeline_;\n                options.remux = val;\n                if (pipeline && pipeline.coalesceStream) {\n                    pipeline.coalesceStream.setRemux(val);\n                }\n            };\n            this.alignGopsWith = function (gopsToAlignWith) {\n                if (videoTrack && this.transmuxPipeline_.videoSegmentStream) {\n                    this.transmuxPipeline_.videoSegmentStream.alignGopsWith(gopsToAlignWith);\n                }\n            };\n            this.getLogTrigger_ = function (key) {\n                var self = this;\n                return function (event) {\n                    event.stream = key;\n                    self.trigger('log', event);\n                };\n            }; // feed incoming data to the front of the parsing pipeline\n\n            this.push = function (data) {\n                if (hasFlushed) {\n                    var isAac = isLikelyAacData(data);\n                    if (isAac && this.transmuxPipeline_.type !== 'aac') {\n                        this.setupAacPipeline();\n                    } else if (!isAac && this.transmuxPipeline_.type !== 'ts') {\n                        this.setupTsPipeline();\n                    }\n                    hasFlushed = false;\n                }\n                this.transmuxPipeline_.headOfPipeline.push(data);\n            }; // flush any buffered data\n\n            this.flush = function () {\n                hasFlushed = true; // Start at the top of the pipeline and flush all pending work\n\n                this.transmuxPipeline_.headOfPipeline.flush();\n            };\n            this.endTimeline = function () {\n                this.transmuxPipeline_.headOfPipeline.endTimeline();\n            };\n            this.reset = function () {\n                if (this.transmuxPipeline_.headOfPipeline) {\n                    this.transmuxPipeline_.headOfPipeline.reset();\n                }\n            }; // Caption data has to be reset when seeking outside buffered range\n\n            this.resetCaptions = function () {\n                if (this.transmuxPipeline_.captionStream) {\n                    this.transmuxPipeline_.captionStream.reset();\n                }\n            };\n        };\n        Transmuxer.prototype = new Stream();\n        var transmuxer = {\n            Transmuxer: Transmuxer,\n            VideoSegmentStream: VideoSegmentStream,\n            AudioSegmentStream: AudioSegmentStream,\n            AUDIO_PROPERTIES: AUDIO_PROPERTIES,\n            VIDEO_PROPERTIES: VIDEO_PROPERTIES,\n            // exported for testing\n            generateSegmentTimingInfo: generateSegmentTimingInfo\n        };\n        /**\n         * mux.js\n         *\n         * Copyright (c) Brightcove\n         * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE\n         */\n\n        var toUnsigned$3 = function (value) {\n            return value >>> 0;\n        };\n        var toHexString$1 = function (value) {\n            return ('00' + value.toString(16)).slice(-2);\n        };\n        var bin = {\n            toUnsigned: toUnsigned$3,\n            toHexString: toHexString$1\n        };\n        var parseType$3 = function (buffer) {\n            var result = '';\n            result += String.fromCharCode(buffer[0]);\n            result += String.fromCharCode(buffer[1]);\n            result += String.fromCharCode(buffer[2]);\n            result += String.fromCharCode(buffer[3]);\n            return result;\n        };\n        var parseType_1 = parseType$3;\n        var toUnsigned$2 = bin.toUnsigned;\n        var parseType$2 = parseType_1;\n        var findBox$2 = function (data, path) {\n            var results = [],\n                i,\n                size,\n                type,\n                end,\n                subresults;\n            if (!path.length) {\n                // short-circuit the search for empty paths\n                return null;\n            }\n            for (i = 0; i < data.byteLength;) {\n                size = toUnsigned$2(data[i] << 24 | data[i + 1] << 16 | data[i + 2] << 8 | data[i + 3]);\n                type = parseType$2(data.subarray(i + 4, i + 8));\n                end = size > 1 ? i + size : data.byteLength;\n                if (type === path[0]) {\n                    if (path.length === 1) {\n                        // this is the end of the path and we've found the box we were\n                        // looking for\n                        results.push(data.subarray(i + 8, end));\n                    } else {\n                        // recursively search for the next box along the path\n                        subresults = findBox$2(data.subarray(i + 8, end), path.slice(1));\n                        if (subresults.length) {\n                            results = results.concat(subresults);\n                        }\n                    }\n                }\n                i = end;\n            } // we've finished searching all of data\n\n            return results;\n        };\n        var findBox_1 = findBox$2;\n        var toUnsigned$1 = bin.toUnsigned;\n        var getUint64$2 = numbers.getUint64;\n        var tfdt = function (data) {\n            var result = {\n                version: data[0],\n                flags: new Uint8Array(data.subarray(1, 4))\n            };\n            if (result.version === 1) {\n                result.baseMediaDecodeTime = getUint64$2(data.subarray(4));\n            } else {\n                result.baseMediaDecodeTime = toUnsigned$1(data[4] << 24 | data[5] << 16 | data[6] << 8 | data[7]);\n            }\n            return result;\n        };\n        var parseTfdt$2 = tfdt;\n        var parseSampleFlags$1 = function (flags) {\n            return {\n                isLeading: (flags[0] & 0x0c) >>> 2,\n                dependsOn: flags[0] & 0x03,\n                isDependedOn: (flags[1] & 0xc0) >>> 6,\n                hasRedundancy: (flags[1] & 0x30) >>> 4,\n                paddingValue: (flags[1] & 0x0e) >>> 1,\n                isNonSyncSample: flags[1] & 0x01,\n                degradationPriority: flags[2] << 8 | flags[3]\n            };\n        };\n        var parseSampleFlags_1 = parseSampleFlags$1;\n        var parseSampleFlags = parseSampleFlags_1;\n        var trun = function (data) {\n            var result = {\n                    version: data[0],\n                    flags: new Uint8Array(data.subarray(1, 4)),\n                    samples: []\n                },\n                view = new DataView(data.buffer, data.byteOffset, data.byteLength),\n                // Flag interpretation\n                dataOffsetPresent = result.flags[2] & 0x01,\n                // compare with 2nd byte of 0x1\n                firstSampleFlagsPresent = result.flags[2] & 0x04,\n                // compare with 2nd byte of 0x4\n                sampleDurationPresent = result.flags[1] & 0x01,\n                // compare with 2nd byte of 0x100\n                sampleSizePresent = result.flags[1] & 0x02,\n                // compare with 2nd byte of 0x200\n                sampleFlagsPresent = result.flags[1] & 0x04,\n                // compare with 2nd byte of 0x400\n                sampleCompositionTimeOffsetPresent = result.flags[1] & 0x08,\n                // compare with 2nd byte of 0x800\n                sampleCount = view.getUint32(4),\n                offset = 8,\n                sample;\n            if (dataOffsetPresent) {\n                // 32 bit signed integer\n                result.dataOffset = view.getInt32(offset);\n                offset += 4;\n            } // Overrides the flags for the first sample only. The order of\n            // optional values will be: duration, size, compositionTimeOffset\n\n            if (firstSampleFlagsPresent && sampleCount) {\n                sample = {\n                    flags: parseSampleFlags(data.subarray(offset, offset + 4))\n                };\n                offset += 4;\n                if (sampleDurationPresent) {\n                    sample.duration = view.getUint32(offset);\n                    offset += 4;\n                }\n                if (sampleSizePresent) {\n                    sample.size = view.getUint32(offset);\n                    offset += 4;\n                }\n                if (sampleCompositionTimeOffsetPresent) {\n                    if (result.version === 1) {\n                        sample.compositionTimeOffset = view.getInt32(offset);\n                    } else {\n                        sample.compositionTimeOffset = view.getUint32(offset);\n                    }\n                    offset += 4;\n                }\n                result.samples.push(sample);\n                sampleCount--;\n            }\n            while (sampleCount--) {\n                sample = {};\n                if (sampleDurationPresent) {\n                    sample.duration = view.getUint32(offset);\n                    offset += 4;\n                }\n                if (sampleSizePresent) {\n                    sample.size = view.getUint32(offset);\n                    offset += 4;\n                }\n                if (sampleFlagsPresent) {\n                    sample.flags = parseSampleFlags(data.subarray(offset, offset + 4));\n                    offset += 4;\n                }\n                if (sampleCompositionTimeOffsetPresent) {\n                    if (result.version === 1) {\n                        sample.compositionTimeOffset = view.getInt32(offset);\n                    } else {\n                        sample.compositionTimeOffset = view.getUint32(offset);\n                    }\n                    offset += 4;\n                }\n                result.samples.push(sample);\n            }\n            return result;\n        };\n        var parseTrun$2 = trun;\n        var tfhd = function (data) {\n            var view = new DataView(data.buffer, data.byteOffset, data.byteLength),\n                result = {\n                    version: data[0],\n                    flags: new Uint8Array(data.subarray(1, 4)),\n                    trackId: view.getUint32(4)\n                },\n                baseDataOffsetPresent = result.flags[2] & 0x01,\n                sampleDescriptionIndexPresent = result.flags[2] & 0x02,\n                defaultSampleDurationPresent = result.flags[2] & 0x08,\n                defaultSampleSizePresent = result.flags[2] & 0x10,\n                defaultSampleFlagsPresent = result.flags[2] & 0x20,\n                durationIsEmpty = result.flags[0] & 0x010000,\n                defaultBaseIsMoof = result.flags[0] & 0x020000,\n                i;\n            i = 8;\n            if (baseDataOffsetPresent) {\n                i += 4; // truncate top 4 bytes\n                // FIXME: should we read the full 64 bits?\n\n                result.baseDataOffset = view.getUint32(12);\n                i += 4;\n            }\n            if (sampleDescriptionIndexPresent) {\n                result.sampleDescriptionIndex = view.getUint32(i);\n                i += 4;\n            }\n            if (defaultSampleDurationPresent) {\n                result.defaultSampleDuration = view.getUint32(i);\n                i += 4;\n            }\n            if (defaultSampleSizePresent) {\n                result.defaultSampleSize = view.getUint32(i);\n                i += 4;\n            }\n            if (defaultSampleFlagsPresent) {\n                result.defaultSampleFlags = view.getUint32(i);\n            }\n            if (durationIsEmpty) {\n                result.durationIsEmpty = true;\n            }\n            if (!baseDataOffsetPresent && defaultBaseIsMoof) {\n                result.baseDataOffsetIsMoof = true;\n            }\n            return result;\n        };\n        var parseTfhd$2 = tfhd;\n        var win;\n        if (typeof window !== \"undefined\") {\n            win = window;\n        } else if (typeof commonjsGlobal !== \"undefined\") {\n            win = commonjsGlobal;\n        } else if (typeof self !== \"undefined\") {\n            win = self;\n        } else {\n            win = {};\n        }\n        var window_1 = win;\n        /**\n         * mux.js\n         *\n         * Copyright (c) Brightcove\n         * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE\n         *\n         * Reads in-band CEA-708 captions out of FMP4 segments.\n         * @see https://en.wikipedia.org/wiki/CEA-708\n         */\n\n        var discardEmulationPreventionBytes = captionPacketParser.discardEmulationPreventionBytes;\n        var CaptionStream = captionStream.CaptionStream;\n        var findBox$1 = findBox_1;\n        var parseTfdt$1 = parseTfdt$2;\n        var parseTrun$1 = parseTrun$2;\n        var parseTfhd$1 = parseTfhd$2;\n        var window$2 = window_1;\n        /**\n         * Maps an offset in the mdat to a sample based on the the size of the samples.\n         * Assumes that `parseSamples` has been called first.\n         *\n         * @param {Number} offset - The offset into the mdat\n         * @param {Object[]} samples - An array of samples, parsed using `parseSamples`\n         * @return {?Object} The matching sample, or null if no match was found.\n         *\n         * @see ISO-BMFF-12/2015, Section 8.8.8\n         **/\n\n        var mapToSample = function (offset, samples) {\n            var approximateOffset = offset;\n            for (var i = 0; i < samples.length; i++) {\n                var sample = samples[i];\n                if (approximateOffset < sample.size) {\n                    return sample;\n                }\n                approximateOffset -= sample.size;\n            }\n            return null;\n        };\n        /**\n         * Finds SEI nal units contained in a Media Data Box.\n         * Assumes that `parseSamples` has been called first.\n         *\n         * @param {Uint8Array} avcStream - The bytes of the mdat\n         * @param {Object[]} samples - The samples parsed out by `parseSamples`\n         * @param {Number} trackId - The trackId of this video track\n         * @return {Object[]} seiNals - the parsed SEI NALUs found.\n         *   The contents of the seiNal should match what is expected by\n         *   CaptionStream.push (nalUnitType, size, data, escapedRBSP, pts, dts)\n         *\n         * @see ISO-BMFF-12/2015, Section 8.1.1\n         * @see Rec. ITU-T H.264, 7.3.2.3.1\n         **/\n\n        var findSeiNals = function (avcStream, samples, trackId) {\n            var avcView = new DataView(avcStream.buffer, avcStream.byteOffset, avcStream.byteLength),\n                result = {\n                    logs: [],\n                    seiNals: []\n                },\n                seiNal,\n                i,\n                length,\n                lastMatchedSample;\n            for (i = 0; i + 4 < avcStream.length; i += length) {\n                length = avcView.getUint32(i);\n                i += 4; // Bail if this doesn't appear to be an H264 stream\n\n                if (length <= 0) {\n                    continue;\n                }\n                switch (avcStream[i] & 0x1F) {\n                    case 0x06:\n                        var data = avcStream.subarray(i + 1, i + 1 + length);\n                        var matchingSample = mapToSample(i, samples);\n                        seiNal = {\n                            nalUnitType: 'sei_rbsp',\n                            size: length,\n                            data: data,\n                            escapedRBSP: discardEmulationPreventionBytes(data),\n                            trackId: trackId\n                        };\n                        if (matchingSample) {\n                            seiNal.pts = matchingSample.pts;\n                            seiNal.dts = matchingSample.dts;\n                            lastMatchedSample = matchingSample;\n                        } else if (lastMatchedSample) {\n                            // If a matching sample cannot be found, use the last\n                            // sample's values as they should be as close as possible\n                            seiNal.pts = lastMatchedSample.pts;\n                            seiNal.dts = lastMatchedSample.dts;\n                        } else {\n                            result.logs.push({\n                                level: 'warn',\n                                message: 'We\\'ve encountered a nal unit without data at ' + i + ' for trackId ' + trackId + '. See mux.js#223.'\n                            });\n                            break;\n                        }\n                        result.seiNals.push(seiNal);\n                        break;\n                }\n            }\n            return result;\n        };\n        /**\n         * Parses sample information out of Track Run Boxes and calculates\n         * the absolute presentation and decode timestamps of each sample.\n         *\n         * @param {Array<Uint8Array>} truns - The Trun Run boxes to be parsed\n         * @param {Number|BigInt} baseMediaDecodeTime - base media decode time from tfdt\n         @see ISO-BMFF-12/2015, Section 8.8.12\n         * @param {Object} tfhd - The parsed Track Fragment Header\n         *   @see inspect.parseTfhd\n         * @return {Object[]} the parsed samples\n         *\n         * @see ISO-BMFF-12/2015, Section 8.8.8\n         **/\n\n        var parseSamples = function (truns, baseMediaDecodeTime, tfhd) {\n            var currentDts = baseMediaDecodeTime;\n            var defaultSampleDuration = tfhd.defaultSampleDuration || 0;\n            var defaultSampleSize = tfhd.defaultSampleSize || 0;\n            var trackId = tfhd.trackId;\n            var allSamples = [];\n            truns.forEach(function (trun) {\n                // Note: We currently do not parse the sample table as well\n                // as the trun. It's possible some sources will require this.\n                // moov > trak > mdia > minf > stbl\n                var trackRun = parseTrun$1(trun);\n                var samples = trackRun.samples;\n                samples.forEach(function (sample) {\n                    if (sample.duration === undefined) {\n                        sample.duration = defaultSampleDuration;\n                    }\n                    if (sample.size === undefined) {\n                        sample.size = defaultSampleSize;\n                    }\n                    sample.trackId = trackId;\n                    sample.dts = currentDts;\n                    if (sample.compositionTimeOffset === undefined) {\n                        sample.compositionTimeOffset = 0;\n                    }\n                    if (typeof currentDts === 'bigint') {\n                        sample.pts = currentDts + window$2.BigInt(sample.compositionTimeOffset);\n                        currentDts += window$2.BigInt(sample.duration);\n                    } else {\n                        sample.pts = currentDts + sample.compositionTimeOffset;\n                        currentDts += sample.duration;\n                    }\n                });\n                allSamples = allSamples.concat(samples);\n            });\n            return allSamples;\n        };\n        /**\n         * Parses out caption nals from an FMP4 segment's video tracks.\n         *\n         * @param {Uint8Array} segment - The bytes of a single segment\n         * @param {Number} videoTrackId - The trackId of a video track in the segment\n         * @return {Object.<Number, Object[]>} A mapping of video trackId to\n         *   a list of seiNals found in that track\n         **/\n\n        var parseCaptionNals = function (segment, videoTrackId) {\n            // To get the samples\n            var trafs = findBox$1(segment, ['moof', 'traf']); // To get SEI NAL units\n\n            var mdats = findBox$1(segment, ['mdat']);\n            var captionNals = {};\n            var mdatTrafPairs = []; // Pair up each traf with a mdat as moofs and mdats are in pairs\n\n            mdats.forEach(function (mdat, index) {\n                var matchingTraf = trafs[index];\n                mdatTrafPairs.push({\n                    mdat: mdat,\n                    traf: matchingTraf\n                });\n            });\n            mdatTrafPairs.forEach(function (pair) {\n                var mdat = pair.mdat;\n                var traf = pair.traf;\n                var tfhd = findBox$1(traf, ['tfhd']); // Exactly 1 tfhd per traf\n\n                var headerInfo = parseTfhd$1(tfhd[0]);\n                var trackId = headerInfo.trackId;\n                var tfdt = findBox$1(traf, ['tfdt']); // Either 0 or 1 tfdt per traf\n\n                var baseMediaDecodeTime = tfdt.length > 0 ? parseTfdt$1(tfdt[0]).baseMediaDecodeTime : 0;\n                var truns = findBox$1(traf, ['trun']);\n                var samples;\n                var result; // Only parse video data for the chosen video track\n\n                if (videoTrackId === trackId && truns.length > 0) {\n                    samples = parseSamples(truns, baseMediaDecodeTime, headerInfo);\n                    result = findSeiNals(mdat, samples, trackId);\n                    if (!captionNals[trackId]) {\n                        captionNals[trackId] = {\n                            seiNals: [],\n                            logs: []\n                        };\n                    }\n                    captionNals[trackId].seiNals = captionNals[trackId].seiNals.concat(result.seiNals);\n                    captionNals[trackId].logs = captionNals[trackId].logs.concat(result.logs);\n                }\n            });\n            return captionNals;\n        };\n        /**\n         * Parses out inband captions from an MP4 container and returns\n         * caption objects that can be used by WebVTT and the TextTrack API.\n         * @see https://developer.mozilla.org/en-US/docs/Web/API/VTTCue\n         * @see https://developer.mozilla.org/en-US/docs/Web/API/TextTrack\n         * Assumes that `probe.getVideoTrackIds` and `probe.timescale` have been called first\n         *\n         * @param {Uint8Array} segment - The fmp4 segment containing embedded captions\n         * @param {Number} trackId - The id of the video track to parse\n         * @param {Number} timescale - The timescale for the video track from the init segment\n         *\n         * @return {?Object[]} parsedCaptions - A list of captions or null if no video tracks\n         * @return {Number} parsedCaptions[].startTime - The time to show the caption in seconds\n         * @return {Number} parsedCaptions[].endTime - The time to stop showing the caption in seconds\n         * @return {String} parsedCaptions[].text - The visible content of the caption\n         **/\n\n        var parseEmbeddedCaptions = function (segment, trackId, timescale) {\n            var captionNals; // the ISO-BMFF spec says that trackId can't be zero, but there's some broken content out there\n\n            if (trackId === null) {\n                return null;\n            }\n            captionNals = parseCaptionNals(segment, trackId);\n            var trackNals = captionNals[trackId] || {};\n            return {\n                seiNals: trackNals.seiNals,\n                logs: trackNals.logs,\n                timescale: timescale\n            };\n        };\n        /**\n         * Converts SEI NALUs into captions that can be used by video.js\n         **/\n\n        var CaptionParser = function () {\n            var isInitialized = false;\n            var captionStream; // Stores segments seen before trackId and timescale are set\n\n            var segmentCache; // Stores video track ID of the track being parsed\n\n            var trackId; // Stores the timescale of the track being parsed\n\n            var timescale; // Stores captions parsed so far\n\n            var parsedCaptions; // Stores whether we are receiving partial data or not\n\n            var parsingPartial;\n            /**\n             * A method to indicate whether a CaptionParser has been initalized\n             * @returns {Boolean}\n             **/\n\n            this.isInitialized = function () {\n                return isInitialized;\n            };\n            /**\n             * Initializes the underlying CaptionStream, SEI NAL parsing\n             * and management, and caption collection\n             **/\n\n            this.init = function (options) {\n                captionStream = new CaptionStream();\n                isInitialized = true;\n                parsingPartial = options ? options.isPartial : false; // Collect dispatched captions\n\n                captionStream.on('data', function (event) {\n                    // Convert to seconds in the source's timescale\n                    event.startTime = event.startPts / timescale;\n                    event.endTime = event.endPts / timescale;\n                    parsedCaptions.captions.push(event);\n                    parsedCaptions.captionStreams[event.stream] = true;\n                });\n                captionStream.on('log', function (log) {\n                    parsedCaptions.logs.push(log);\n                });\n            };\n            /**\n             * Determines if a new video track will be selected\n             * or if the timescale changed\n             * @return {Boolean}\n             **/\n\n            this.isNewInit = function (videoTrackIds, timescales) {\n                if (videoTrackIds && videoTrackIds.length === 0 || timescales && typeof timescales === 'object' && Object.keys(timescales).length === 0) {\n                    return false;\n                }\n                return trackId !== videoTrackIds[0] || timescale !== timescales[trackId];\n            };\n            /**\n             * Parses out SEI captions and interacts with underlying\n             * CaptionStream to return dispatched captions\n             *\n             * @param {Uint8Array} segment - The fmp4 segment containing embedded captions\n             * @param {Number[]} videoTrackIds - A list of video tracks found in the init segment\n             * @param {Object.<Number, Number>} timescales - The timescales found in the init segment\n             * @see parseEmbeddedCaptions\n             * @see m2ts/caption-stream.js\n             **/\n\n            this.parse = function (segment, videoTrackIds, timescales) {\n                var parsedData;\n                if (!this.isInitialized()) {\n                    return null; // This is not likely to be a video segment\n                } else if (!videoTrackIds || !timescales) {\n                    return null;\n                } else if (this.isNewInit(videoTrackIds, timescales)) {\n                    // Use the first video track only as there is no\n                    // mechanism to switch to other video tracks\n                    trackId = videoTrackIds[0];\n                    timescale = timescales[trackId]; // If an init segment has not been seen yet, hold onto segment\n                    // data until we have one.\n                    // the ISO-BMFF spec says that trackId can't be zero, but there's some broken content out there\n                } else if (trackId === null || !timescale) {\n                    segmentCache.push(segment);\n                    return null;\n                } // Now that a timescale and trackId is set, parse cached segments\n\n                while (segmentCache.length > 0) {\n                    var cachedSegment = segmentCache.shift();\n                    this.parse(cachedSegment, videoTrackIds, timescales);\n                }\n                parsedData = parseEmbeddedCaptions(segment, trackId, timescale);\n                if (parsedData && parsedData.logs) {\n                    parsedCaptions.logs = parsedCaptions.logs.concat(parsedData.logs);\n                }\n                if (parsedData === null || !parsedData.seiNals) {\n                    if (parsedCaptions.logs.length) {\n                        return {\n                            logs: parsedCaptions.logs,\n                            captions: [],\n                            captionStreams: []\n                        };\n                    }\n                    return null;\n                }\n                this.pushNals(parsedData.seiNals); // Force the parsed captions to be dispatched\n\n                this.flushStream();\n                return parsedCaptions;\n            };\n            /**\n             * Pushes SEI NALUs onto CaptionStream\n             * @param {Object[]} nals - A list of SEI nals parsed using `parseCaptionNals`\n             * Assumes that `parseCaptionNals` has been called first\n             * @see m2ts/caption-stream.js\n             **/\n\n            this.pushNals = function (nals) {\n                if (!this.isInitialized() || !nals || nals.length === 0) {\n                    return null;\n                }\n                nals.forEach(function (nal) {\n                    captionStream.push(nal);\n                });\n            };\n            /**\n             * Flushes underlying CaptionStream to dispatch processed, displayable captions\n             * @see m2ts/caption-stream.js\n             **/\n\n            this.flushStream = function () {\n                if (!this.isInitialized()) {\n                    return null;\n                }\n                if (!parsingPartial) {\n                    captionStream.flush();\n                } else {\n                    captionStream.partialFlush();\n                }\n            };\n            /**\n             * Reset caption buckets for new data\n             **/\n\n            this.clearParsedCaptions = function () {\n                parsedCaptions.captions = [];\n                parsedCaptions.captionStreams = {};\n                parsedCaptions.logs = [];\n            };\n            /**\n             * Resets underlying CaptionStream\n             * @see m2ts/caption-stream.js\n             **/\n\n            this.resetCaptionStream = function () {\n                if (!this.isInitialized()) {\n                    return null;\n                }\n                captionStream.reset();\n            };\n            /**\n             * Convenience method to clear all captions flushed from the\n             * CaptionStream and still being parsed\n             * @see m2ts/caption-stream.js\n             **/\n\n            this.clearAllCaptions = function () {\n                this.clearParsedCaptions();\n                this.resetCaptionStream();\n            };\n            /**\n             * Reset caption parser\n             **/\n\n            this.reset = function () {\n                segmentCache = [];\n                trackId = null;\n                timescale = null;\n                if (!parsedCaptions) {\n                    parsedCaptions = {\n                        captions: [],\n                        // CC1, CC2, CC3, CC4\n                        captionStreams: {},\n                        logs: []\n                    };\n                } else {\n                    this.clearParsedCaptions();\n                }\n                this.resetCaptionStream();\n            };\n            this.reset();\n        };\n        var captionParser = CaptionParser;\n        /**\n         * Returns the first string in the data array ending with a null char '\\0'\n         * @param {UInt8} data\n         * @returns the string with the null char\n         */\n\n        var uint8ToCString$1 = function (data) {\n            var index = 0;\n            var curChar = String.fromCharCode(data[index]);\n            var retString = '';\n            while (curChar !== '\\0') {\n                retString += curChar;\n                index++;\n                curChar = String.fromCharCode(data[index]);\n            } // Add nullChar\n\n            retString += curChar;\n            return retString;\n        };\n        var string = {\n            uint8ToCString: uint8ToCString$1\n        };\n        var uint8ToCString = string.uint8ToCString;\n        var getUint64$1 = numbers.getUint64;\n        /**\n         * Based on: ISO/IEC 23009 Section: 5.10.3.3\n         * References:\n         * https://dashif-documents.azurewebsites.net/Events/master/event.html#emsg-format\n         * https://aomediacodec.github.io/id3-emsg/\n         *\n         * Takes emsg box data as a uint8 array and returns a emsg box object\n         * @param {UInt8Array} boxData data from emsg box\n         * @returns A parsed emsg box object\n         */\n\n        var parseEmsgBox = function (boxData) {\n            // version + flags\n            var offset = 4;\n            var version = boxData[0];\n            var scheme_id_uri, value, timescale, presentation_time, presentation_time_delta, event_duration, id, message_data;\n            if (version === 0) {\n                scheme_id_uri = uint8ToCString(boxData.subarray(offset));\n                offset += scheme_id_uri.length;\n                value = uint8ToCString(boxData.subarray(offset));\n                offset += value.length;\n                var dv = new DataView(boxData.buffer);\n                timescale = dv.getUint32(offset);\n                offset += 4;\n                presentation_time_delta = dv.getUint32(offset);\n                offset += 4;\n                event_duration = dv.getUint32(offset);\n                offset += 4;\n                id = dv.getUint32(offset);\n                offset += 4;\n            } else if (version === 1) {\n                var dv = new DataView(boxData.buffer);\n                timescale = dv.getUint32(offset);\n                offset += 4;\n                presentation_time = getUint64$1(boxData.subarray(offset));\n                offset += 8;\n                event_duration = dv.getUint32(offset);\n                offset += 4;\n                id = dv.getUint32(offset);\n                offset += 4;\n                scheme_id_uri = uint8ToCString(boxData.subarray(offset));\n                offset += scheme_id_uri.length;\n                value = uint8ToCString(boxData.subarray(offset));\n                offset += value.length;\n            }\n            message_data = new Uint8Array(boxData.subarray(offset, boxData.byteLength));\n            var emsgBox = {\n                scheme_id_uri,\n                value,\n                // if timescale is undefined or 0 set to 1\n                timescale: timescale ? timescale : 1,\n                presentation_time,\n                presentation_time_delta,\n                event_duration,\n                id,\n                message_data\n            };\n            return isValidEmsgBox(version, emsgBox) ? emsgBox : undefined;\n        };\n        /**\n         * Scales a presentation time or time delta with an offset with a provided timescale\n         * @param {number} presentationTime\n         * @param {number} timescale\n         * @param {number} timeDelta\n         * @param {number} offset\n         * @returns the scaled time as a number\n         */\n\n        var scaleTime = function (presentationTime, timescale, timeDelta, offset) {\n            return presentationTime || presentationTime === 0 ? presentationTime / timescale : offset + timeDelta / timescale;\n        };\n        /**\n         * Checks the emsg box data for validity based on the version\n         * @param {number} version of the emsg box to validate\n         * @param {Object} emsg the emsg data to validate\n         * @returns if the box is valid as a boolean\n         */\n\n        var isValidEmsgBox = function (version, emsg) {\n            var hasScheme = emsg.scheme_id_uri !== '\\0';\n            var isValidV0Box = version === 0 && isDefined(emsg.presentation_time_delta) && hasScheme;\n            var isValidV1Box = version === 1 && isDefined(emsg.presentation_time) && hasScheme; // Only valid versions of emsg are 0 and 1\n\n            return !(version > 1) && isValidV0Box || isValidV1Box;\n        }; // Utility function to check if an object is defined\n\n        var isDefined = function (data) {\n            return data !== undefined || data !== null;\n        };\n        var emsg$1 = {\n            parseEmsgBox: parseEmsgBox,\n            scaleTime: scaleTime\n        };\n        /**\n         * mux.js\n         *\n         * Copyright (c) Brightcove\n         * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE\n         *\n         * Utilities to detect basic properties and metadata about MP4s.\n         */\n\n        var toUnsigned = bin.toUnsigned;\n        var toHexString = bin.toHexString;\n        var findBox = findBox_1;\n        var parseType$1 = parseType_1;\n        var emsg = emsg$1;\n        var parseTfhd = parseTfhd$2;\n        var parseTrun = parseTrun$2;\n        var parseTfdt = parseTfdt$2;\n        var getUint64 = numbers.getUint64;\n        var timescale, startTime, compositionStartTime, getVideoTrackIds, getTracks, getTimescaleFromMediaHeader, getEmsgID3;\n        var window$1 = window_1;\n        var parseId3Frames = parseId3.parseId3Frames;\n        /**\n         * Parses an MP4 initialization segment and extracts the timescale\n         * values for any declared tracks. Timescale values indicate the\n         * number of clock ticks per second to assume for time-based values\n         * elsewhere in the MP4.\n         *\n         * To determine the start time of an MP4, you need two pieces of\n         * information: the timescale unit and the earliest base media decode\n         * time. Multiple timescales can be specified within an MP4 but the\n         * base media decode time is always expressed in the timescale from\n         * the media header box for the track:\n         * ```\n         * moov > trak > mdia > mdhd.timescale\n         * ```\n         * @param init {Uint8Array} the bytes of the init segment\n         * @return {object} a hash of track ids to timescale values or null if\n         * the init segment is malformed.\n         */\n\n        timescale = function (init) {\n            var result = {},\n                traks = findBox(init, ['moov', 'trak']); // mdhd timescale\n\n            return traks.reduce(function (result, trak) {\n                var tkhd, version, index, id, mdhd;\n                tkhd = findBox(trak, ['tkhd'])[0];\n                if (!tkhd) {\n                    return null;\n                }\n                version = tkhd[0];\n                index = version === 0 ? 12 : 20;\n                id = toUnsigned(tkhd[index] << 24 | tkhd[index + 1] << 16 | tkhd[index + 2] << 8 | tkhd[index + 3]);\n                mdhd = findBox(trak, ['mdia', 'mdhd'])[0];\n                if (!mdhd) {\n                    return null;\n                }\n                version = mdhd[0];\n                index = version === 0 ? 12 : 20;\n                result[id] = toUnsigned(mdhd[index] << 24 | mdhd[index + 1] << 16 | mdhd[index + 2] << 8 | mdhd[index + 3]);\n                return result;\n            }, result);\n        };\n        /**\n         * Determine the base media decode start time, in seconds, for an MP4\n         * fragment. If multiple fragments are specified, the earliest time is\n         * returned.\n         *\n         * The base media decode time can be parsed from track fragment\n         * metadata:\n         * ```\n         * moof > traf > tfdt.baseMediaDecodeTime\n         * ```\n         * It requires the timescale value from the mdhd to interpret.\n         *\n         * @param timescale {object} a hash of track ids to timescale values.\n         * @return {number} the earliest base media decode start time for the\n         * fragment, in seconds\n         */\n\n        startTime = function (timescale, fragment) {\n            var trafs; // we need info from two childrend of each track fragment box\n\n            trafs = findBox(fragment, ['moof', 'traf']); // determine the start times for each track\n\n            var lowestTime = trafs.reduce(function (acc, traf) {\n                var tfhd = findBox(traf, ['tfhd'])[0]; // get the track id from the tfhd\n\n                var id = toUnsigned(tfhd[4] << 24 | tfhd[5] << 16 | tfhd[6] << 8 | tfhd[7]); // assume a 90kHz clock if no timescale was specified\n\n                var scale = timescale[id] || 90e3; // get the base media decode time from the tfdt\n\n                var tfdt = findBox(traf, ['tfdt'])[0];\n                var dv = new DataView(tfdt.buffer, tfdt.byteOffset, tfdt.byteLength);\n                var baseTime; // version 1 is 64 bit\n\n                if (tfdt[0] === 1) {\n                    baseTime = getUint64(tfdt.subarray(4, 12));\n                } else {\n                    baseTime = dv.getUint32(4);\n                } // convert base time to seconds if it is a valid number.\n\n                let seconds;\n                if (typeof baseTime === 'bigint') {\n                    seconds = baseTime / window$1.BigInt(scale);\n                } else if (typeof baseTime === 'number' && !isNaN(baseTime)) {\n                    seconds = baseTime / scale;\n                }\n                if (seconds < Number.MAX_SAFE_INTEGER) {\n                    seconds = Number(seconds);\n                }\n                if (seconds < acc) {\n                    acc = seconds;\n                }\n                return acc;\n            }, Infinity);\n            return typeof lowestTime === 'bigint' || isFinite(lowestTime) ? lowestTime : 0;\n        };\n        /**\n         * Determine the composition start, in seconds, for an MP4\n         * fragment.\n         *\n         * The composition start time of a fragment can be calculated using the base\n         * media decode time, composition time offset, and timescale, as follows:\n         *\n         * compositionStartTime = (baseMediaDecodeTime + compositionTimeOffset) / timescale\n         *\n         * All of the aforementioned information is contained within a media fragment's\n         * `traf` box, except for timescale info, which comes from the initialization\n         * segment, so a track id (also contained within a `traf`) is also necessary to\n         * associate it with a timescale\n         *\n         *\n         * @param timescales {object} - a hash of track ids to timescale values.\n         * @param fragment {Unit8Array} - the bytes of a media segment\n         * @return {number} the composition start time for the fragment, in seconds\n         **/\n\n        compositionStartTime = function (timescales, fragment) {\n            var trafBoxes = findBox(fragment, ['moof', 'traf']);\n            var baseMediaDecodeTime = 0;\n            var compositionTimeOffset = 0;\n            var trackId;\n            if (trafBoxes && trafBoxes.length) {\n                // The spec states that track run samples contained within a `traf` box are contiguous, but\n                // it does not explicitly state whether the `traf` boxes themselves are contiguous.\n                // We will assume that they are, so we only need the first to calculate start time.\n                var tfhd = findBox(trafBoxes[0], ['tfhd'])[0];\n                var trun = findBox(trafBoxes[0], ['trun'])[0];\n                var tfdt = findBox(trafBoxes[0], ['tfdt'])[0];\n                if (tfhd) {\n                    var parsedTfhd = parseTfhd(tfhd);\n                    trackId = parsedTfhd.trackId;\n                }\n                if (tfdt) {\n                    var parsedTfdt = parseTfdt(tfdt);\n                    baseMediaDecodeTime = parsedTfdt.baseMediaDecodeTime;\n                }\n                if (trun) {\n                    var parsedTrun = parseTrun(trun);\n                    if (parsedTrun.samples && parsedTrun.samples.length) {\n                        compositionTimeOffset = parsedTrun.samples[0].compositionTimeOffset || 0;\n                    }\n                }\n            } // Get timescale for this specific track. Assume a 90kHz clock if no timescale was\n            // specified.\n\n            var timescale = timescales[trackId] || 90e3; // return the composition start time, in seconds\n\n            if (typeof baseMediaDecodeTime === 'bigint') {\n                compositionTimeOffset = window$1.BigInt(compositionTimeOffset);\n                timescale = window$1.BigInt(timescale);\n            }\n            var result = (baseMediaDecodeTime + compositionTimeOffset) / timescale;\n            if (typeof result === 'bigint' && result < Number.MAX_SAFE_INTEGER) {\n                result = Number(result);\n            }\n            return result;\n        };\n        /**\n         * Find the trackIds of the video tracks in this source.\n         * Found by parsing the Handler Reference and Track Header Boxes:\n         *   moov > trak > mdia > hdlr\n         *   moov > trak > tkhd\n         *\n         * @param {Uint8Array} init - The bytes of the init segment for this source\n         * @return {Number[]} A list of trackIds\n         *\n         * @see ISO-BMFF-12/2015, Section 8.4.3\n         **/\n\n        getVideoTrackIds = function (init) {\n            var traks = findBox(init, ['moov', 'trak']);\n            var videoTrackIds = [];\n            traks.forEach(function (trak) {\n                var hdlrs = findBox(trak, ['mdia', 'hdlr']);\n                var tkhds = findBox(trak, ['tkhd']);\n                hdlrs.forEach(function (hdlr, index) {\n                    var handlerType = parseType$1(hdlr.subarray(8, 12));\n                    var tkhd = tkhds[index];\n                    var view;\n                    var version;\n                    var trackId;\n                    if (handlerType === 'vide') {\n                        view = new DataView(tkhd.buffer, tkhd.byteOffset, tkhd.byteLength);\n                        version = view.getUint8(0);\n                        trackId = version === 0 ? view.getUint32(12) : view.getUint32(20);\n                        videoTrackIds.push(trackId);\n                    }\n                });\n            });\n            return videoTrackIds;\n        };\n        getTimescaleFromMediaHeader = function (mdhd) {\n            // mdhd is a FullBox, meaning it will have its own version as the first byte\n            var version = mdhd[0];\n            var index = version === 0 ? 12 : 20;\n            return toUnsigned(mdhd[index] << 24 | mdhd[index + 1] << 16 | mdhd[index + 2] << 8 | mdhd[index + 3]);\n        };\n        /**\n         * Get all the video, audio, and hint tracks from a non fragmented\n         * mp4 segment\n         */\n\n        getTracks = function (init) {\n            var traks = findBox(init, ['moov', 'trak']);\n            var tracks = [];\n            traks.forEach(function (trak) {\n                var track = {};\n                var tkhd = findBox(trak, ['tkhd'])[0];\n                var view, tkhdVersion; // id\n\n                if (tkhd) {\n                    view = new DataView(tkhd.buffer, tkhd.byteOffset, tkhd.byteLength);\n                    tkhdVersion = view.getUint8(0);\n                    track.id = tkhdVersion === 0 ? view.getUint32(12) : view.getUint32(20);\n                }\n                var hdlr = findBox(trak, ['mdia', 'hdlr'])[0]; // type\n\n                if (hdlr) {\n                    var type = parseType$1(hdlr.subarray(8, 12));\n                    if (type === 'vide') {\n                        track.type = 'video';\n                    } else if (type === 'soun') {\n                        track.type = 'audio';\n                    } else {\n                        track.type = type;\n                    }\n                } // codec\n\n                var stsd = findBox(trak, ['mdia', 'minf', 'stbl', 'stsd'])[0];\n                if (stsd) {\n                    var sampleDescriptions = stsd.subarray(8); // gives the codec type string\n\n                    track.codec = parseType$1(sampleDescriptions.subarray(4, 8));\n                    var codecBox = findBox(sampleDescriptions, [track.codec])[0];\n                    var codecConfig, codecConfigType;\n                    if (codecBox) {\n                        // https://tools.ietf.org/html/rfc6381#section-3.3\n                        if (/^[asm]vc[1-9]$/i.test(track.codec)) {\n                            // we don't need anything but the \"config\" parameter of the\n                            // avc1 codecBox\n                            codecConfig = codecBox.subarray(78);\n                            codecConfigType = parseType$1(codecConfig.subarray(4, 8));\n                            if (codecConfigType === 'avcC' && codecConfig.length > 11) {\n                                track.codec += '.'; // left padded with zeroes for single digit hex\n                                // profile idc\n\n                                track.codec += toHexString(codecConfig[9]); // the byte containing the constraint_set flags\n\n                                track.codec += toHexString(codecConfig[10]); // level idc\n\n                                track.codec += toHexString(codecConfig[11]);\n                            } else {\n                                // TODO: show a warning that we couldn't parse the codec\n                                // and are using the default\n                                track.codec = 'avc1.4d400d';\n                            }\n                        } else if (/^mp4[a,v]$/i.test(track.codec)) {\n                            // we do not need anything but the streamDescriptor of the mp4a codecBox\n                            codecConfig = codecBox.subarray(28);\n                            codecConfigType = parseType$1(codecConfig.subarray(4, 8));\n                            if (codecConfigType === 'esds' && codecConfig.length > 20 && codecConfig[19] !== 0) {\n                                track.codec += '.' + toHexString(codecConfig[19]); // this value is only a single digit\n\n                                track.codec += '.' + toHexString(codecConfig[20] >>> 2 & 0x3f).replace(/^0/, '');\n                            } else {\n                                // TODO: show a warning that we couldn't parse the codec\n                                // and are using the default\n                                track.codec = 'mp4a.40.2';\n                            }\n                        } else {\n                            // flac, opus, etc\n                            track.codec = track.codec.toLowerCase();\n                        }\n                    }\n                }\n                var mdhd = findBox(trak, ['mdia', 'mdhd'])[0];\n                if (mdhd) {\n                    track.timescale = getTimescaleFromMediaHeader(mdhd);\n                }\n                tracks.push(track);\n            });\n            return tracks;\n        };\n        /**\n         * Returns an array of emsg ID3 data from the provided segmentData.\n         * An offset can also be provided as the Latest Arrival Time to calculate\n         * the Event Start Time of v0 EMSG boxes.\n         * See: https://dashif-documents.azurewebsites.net/Events/master/event.html#Inband-event-timing\n         *\n         * @param {Uint8Array} segmentData the segment byte array.\n         * @param {number} offset the segment start time or Latest Arrival Time,\n         * @return {Object[]} an array of ID3 parsed from EMSG boxes\n         */\n\n        getEmsgID3 = function (segmentData, offset = 0) {\n            var emsgBoxes = findBox(segmentData, ['emsg']);\n            return emsgBoxes.map(data => {\n                var parsedBox = emsg.parseEmsgBox(new Uint8Array(data));\n                var parsedId3Frames = parseId3Frames(parsedBox.message_data);\n                return {\n                    cueTime: emsg.scaleTime(parsedBox.presentation_time, parsedBox.timescale, parsedBox.presentation_time_delta, offset),\n                    duration: emsg.scaleTime(parsedBox.event_duration, parsedBox.timescale),\n                    frames: parsedId3Frames\n                };\n            });\n        };\n        var probe$2 = {\n            // export mp4 inspector's findBox and parseType for backwards compatibility\n            findBox: findBox,\n            parseType: parseType$1,\n            timescale: timescale,\n            startTime: startTime,\n            compositionStartTime: compositionStartTime,\n            videoTrackIds: getVideoTrackIds,\n            tracks: getTracks,\n            getTimescaleFromMediaHeader: getTimescaleFromMediaHeader,\n            getEmsgID3: getEmsgID3\n        };\n        /**\n         * mux.js\n         *\n         * Copyright (c) Brightcove\n         * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE\n         *\n         * Utilities to detect basic properties and metadata about TS Segments.\n         */\n\n        var StreamTypes$1 = streamTypes;\n        var parsePid = function (packet) {\n            var pid = packet[1] & 0x1f;\n            pid <<= 8;\n            pid |= packet[2];\n            return pid;\n        };\n        var parsePayloadUnitStartIndicator = function (packet) {\n            return !!(packet[1] & 0x40);\n        };\n        var parseAdaptionField = function (packet) {\n            var offset = 0; // if an adaption field is present, its length is specified by the\n            // fifth byte of the TS packet header. The adaptation field is\n            // used to add stuffing to PES packets that don't fill a complete\n            // TS packet, and to specify some forms of timing and control data\n            // that we do not currently use.\n\n            if ((packet[3] & 0x30) >>> 4 > 0x01) {\n                offset += packet[4] + 1;\n            }\n            return offset;\n        };\n        var parseType = function (packet, pmtPid) {\n            var pid = parsePid(packet);\n            if (pid === 0) {\n                return 'pat';\n            } else if (pid === pmtPid) {\n                return 'pmt';\n            } else if (pmtPid) {\n                return 'pes';\n            }\n            return null;\n        };\n        var parsePat = function (packet) {\n            var pusi = parsePayloadUnitStartIndicator(packet);\n            var offset = 4 + parseAdaptionField(packet);\n            if (pusi) {\n                offset += packet[offset] + 1;\n            }\n            return (packet[offset + 10] & 0x1f) << 8 | packet[offset + 11];\n        };\n        var parsePmt = function (packet) {\n            var programMapTable = {};\n            var pusi = parsePayloadUnitStartIndicator(packet);\n            var payloadOffset = 4 + parseAdaptionField(packet);\n            if (pusi) {\n                payloadOffset += packet[payloadOffset] + 1;\n            } // PMTs can be sent ahead of the time when they should actually\n            // take effect. We don't believe this should ever be the case\n            // for HLS but we'll ignore \"forward\" PMT declarations if we see\n            // them. Future PMT declarations have the current_next_indicator\n            // set to zero.\n\n            if (!(packet[payloadOffset + 5] & 0x01)) {\n                return;\n            }\n            var sectionLength, tableEnd, programInfoLength; // the mapping table ends at the end of the current section\n\n            sectionLength = (packet[payloadOffset + 1] & 0x0f) << 8 | packet[payloadOffset + 2];\n            tableEnd = 3 + sectionLength - 4; // to determine where the table is, we have to figure out how\n            // long the program info descriptors are\n\n            programInfoLength = (packet[payloadOffset + 10] & 0x0f) << 8 | packet[payloadOffset + 11]; // advance the offset to the first entry in the mapping table\n\n            var offset = 12 + programInfoLength;\n            while (offset < tableEnd) {\n                var i = payloadOffset + offset; // add an entry that maps the elementary_pid to the stream_type\n\n                programMapTable[(packet[i + 1] & 0x1F) << 8 | packet[i + 2]] = packet[i]; // move to the next table entry\n                // skip past the elementary stream descriptors, if present\n\n                offset += ((packet[i + 3] & 0x0F) << 8 | packet[i + 4]) + 5;\n            }\n            return programMapTable;\n        };\n        var parsePesType = function (packet, programMapTable) {\n            var pid = parsePid(packet);\n            var type = programMapTable[pid];\n            switch (type) {\n                case StreamTypes$1.H264_STREAM_TYPE:\n                    return 'video';\n                case StreamTypes$1.ADTS_STREAM_TYPE:\n                    return 'audio';\n                case StreamTypes$1.METADATA_STREAM_TYPE:\n                    return 'timed-metadata';\n                default:\n                    return null;\n            }\n        };\n        var parsePesTime = function (packet) {\n            var pusi = parsePayloadUnitStartIndicator(packet);\n            if (!pusi) {\n                return null;\n            }\n            var offset = 4 + parseAdaptionField(packet);\n            if (offset >= packet.byteLength) {\n                // From the H 222.0 MPEG-TS spec\n                // \"For transport stream packets carrying PES packets, stuffing is needed when there\n                //  is insufficient PES packet data to completely fill the transport stream packet\n                //  payload bytes. Stuffing is accomplished by defining an adaptation field longer than\n                //  the sum of the lengths of the data elements in it, so that the payload bytes\n                //  remaining after the adaptation field exactly accommodates the available PES packet\n                //  data.\"\n                //\n                // If the offset is >= the length of the packet, then the packet contains no data\n                // and instead is just adaption field stuffing bytes\n                return null;\n            }\n            var pes = null;\n            var ptsDtsFlags; // PES packets may be annotated with a PTS value, or a PTS value\n            // and a DTS value. Determine what combination of values is\n            // available to work with.\n\n            ptsDtsFlags = packet[offset + 7]; // PTS and DTS are normally stored as a 33-bit number.  Javascript\n            // performs all bitwise operations on 32-bit integers but javascript\n            // supports a much greater range (52-bits) of integer using standard\n            // mathematical operations.\n            // We construct a 31-bit value using bitwise operators over the 31\n            // most significant bits and then multiply by 4 (equal to a left-shift\n            // of 2) before we add the final 2 least significant bits of the\n            // timestamp (equal to an OR.)\n\n            if (ptsDtsFlags & 0xC0) {\n                pes = {}; // the PTS and DTS are not written out directly. For information\n                // on how they are encoded, see\n                // http://dvd.sourceforge.net/dvdinfo/pes-hdr.html\n\n                pes.pts = (packet[offset + 9] & 0x0E) << 27 | (packet[offset + 10] & 0xFF) << 20 | (packet[offset + 11] & 0xFE) << 12 | (packet[offset + 12] & 0xFF) << 5 | (packet[offset + 13] & 0xFE) >>> 3;\n                pes.pts *= 4; // Left shift by 2\n\n                pes.pts += (packet[offset + 13] & 0x06) >>> 1; // OR by the two LSBs\n\n                pes.dts = pes.pts;\n                if (ptsDtsFlags & 0x40) {\n                    pes.dts = (packet[offset + 14] & 0x0E) << 27 | (packet[offset + 15] & 0xFF) << 20 | (packet[offset + 16] & 0xFE) << 12 | (packet[offset + 17] & 0xFF) << 5 | (packet[offset + 18] & 0xFE) >>> 3;\n                    pes.dts *= 4; // Left shift by 2\n\n                    pes.dts += (packet[offset + 18] & 0x06) >>> 1; // OR by the two LSBs\n                }\n            }\n\n            return pes;\n        };\n        var parseNalUnitType = function (type) {\n            switch (type) {\n                case 0x05:\n                    return 'slice_layer_without_partitioning_rbsp_idr';\n                case 0x06:\n                    return 'sei_rbsp';\n                case 0x07:\n                    return 'seq_parameter_set_rbsp';\n                case 0x08:\n                    return 'pic_parameter_set_rbsp';\n                case 0x09:\n                    return 'access_unit_delimiter_rbsp';\n                default:\n                    return null;\n            }\n        };\n        var videoPacketContainsKeyFrame = function (packet) {\n            var offset = 4 + parseAdaptionField(packet);\n            var frameBuffer = packet.subarray(offset);\n            var frameI = 0;\n            var frameSyncPoint = 0;\n            var foundKeyFrame = false;\n            var nalType; // advance the sync point to a NAL start, if necessary\n\n            for (; frameSyncPoint < frameBuffer.byteLength - 3; frameSyncPoint++) {\n                if (frameBuffer[frameSyncPoint + 2] === 1) {\n                    // the sync point is properly aligned\n                    frameI = frameSyncPoint + 5;\n                    break;\n                }\n            }\n            while (frameI < frameBuffer.byteLength) {\n                // look at the current byte to determine if we've hit the end of\n                // a NAL unit boundary\n                switch (frameBuffer[frameI]) {\n                    case 0:\n                        // skip past non-sync sequences\n                        if (frameBuffer[frameI - 1] !== 0) {\n                            frameI += 2;\n                            break;\n                        } else if (frameBuffer[frameI - 2] !== 0) {\n                            frameI++;\n                            break;\n                        }\n                        if (frameSyncPoint + 3 !== frameI - 2) {\n                            nalType = parseNalUnitType(frameBuffer[frameSyncPoint + 3] & 0x1f);\n                            if (nalType === 'slice_layer_without_partitioning_rbsp_idr') {\n                                foundKeyFrame = true;\n                            }\n                        } // drop trailing zeroes\n\n                        do {\n                            frameI++;\n                        } while (frameBuffer[frameI] !== 1 && frameI < frameBuffer.length);\n                        frameSyncPoint = frameI - 2;\n                        frameI += 3;\n                        break;\n                    case 1:\n                        // skip past non-sync sequences\n                        if (frameBuffer[frameI - 1] !== 0 || frameBuffer[frameI - 2] !== 0) {\n                            frameI += 3;\n                            break;\n                        }\n                        nalType = parseNalUnitType(frameBuffer[frameSyncPoint + 3] & 0x1f);\n                        if (nalType === 'slice_layer_without_partitioning_rbsp_idr') {\n                            foundKeyFrame = true;\n                        }\n                        frameSyncPoint = frameI - 2;\n                        frameI += 3;\n                        break;\n                    default:\n                        // the current byte isn't a one or zero, so it cannot be part\n                        // of a sync sequence\n                        frameI += 3;\n                        break;\n                }\n            }\n            frameBuffer = frameBuffer.subarray(frameSyncPoint);\n            frameI -= frameSyncPoint;\n            frameSyncPoint = 0; // parse the final nal\n\n            if (frameBuffer && frameBuffer.byteLength > 3) {\n                nalType = parseNalUnitType(frameBuffer[frameSyncPoint + 3] & 0x1f);\n                if (nalType === 'slice_layer_without_partitioning_rbsp_idr') {\n                    foundKeyFrame = true;\n                }\n            }\n            return foundKeyFrame;\n        };\n        var probe$1 = {\n            parseType: parseType,\n            parsePat: parsePat,\n            parsePmt: parsePmt,\n            parsePayloadUnitStartIndicator: parsePayloadUnitStartIndicator,\n            parsePesType: parsePesType,\n            parsePesTime: parsePesTime,\n            videoPacketContainsKeyFrame: videoPacketContainsKeyFrame\n        };\n        /**\n         * mux.js\n         *\n         * Copyright (c) Brightcove\n         * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE\n         *\n         * Parse mpeg2 transport stream packets to extract basic timing information\n         */\n\n        var StreamTypes = streamTypes;\n        var handleRollover = timestampRolloverStream.handleRollover;\n        var probe = {};\n        probe.ts = probe$1;\n        probe.aac = utils;\n        var ONE_SECOND_IN_TS = clock$2.ONE_SECOND_IN_TS;\n        var MP2T_PACKET_LENGTH = 188,\n            // bytes\n            SYNC_BYTE = 0x47;\n        /**\n         * walks through segment data looking for pat and pmt packets to parse out\n         * program map table information\n         */\n\n        var parsePsi_ = function (bytes, pmt) {\n            var startIndex = 0,\n                endIndex = MP2T_PACKET_LENGTH,\n                packet,\n                type;\n            while (endIndex < bytes.byteLength) {\n                // Look for a pair of start and end sync bytes in the data..\n                if (bytes[startIndex] === SYNC_BYTE && bytes[endIndex] === SYNC_BYTE) {\n                    // We found a packet\n                    packet = bytes.subarray(startIndex, endIndex);\n                    type = probe.ts.parseType(packet, pmt.pid);\n                    switch (type) {\n                        case 'pat':\n                            pmt.pid = probe.ts.parsePat(packet);\n                            break;\n                        case 'pmt':\n                            var table = probe.ts.parsePmt(packet);\n                            pmt.table = pmt.table || {};\n                            Object.keys(table).forEach(function (key) {\n                                pmt.table[key] = table[key];\n                            });\n                            break;\n                    }\n                    startIndex += MP2T_PACKET_LENGTH;\n                    endIndex += MP2T_PACKET_LENGTH;\n                    continue;\n                } // If we get here, we have somehow become de-synchronized and we need to step\n                // forward one byte at a time until we find a pair of sync bytes that denote\n                // a packet\n\n                startIndex++;\n                endIndex++;\n            }\n        };\n        /**\n         * walks through the segment data from the start and end to get timing information\n         * for the first and last audio pes packets\n         */\n\n        var parseAudioPes_ = function (bytes, pmt, result) {\n            var startIndex = 0,\n                endIndex = MP2T_PACKET_LENGTH,\n                packet,\n                type,\n                pesType,\n                pusi,\n                parsed;\n            var endLoop = false; // Start walking from start of segment to get first audio packet\n\n            while (endIndex <= bytes.byteLength) {\n                // Look for a pair of start and end sync bytes in the data..\n                if (bytes[startIndex] === SYNC_BYTE && (bytes[endIndex] === SYNC_BYTE || endIndex === bytes.byteLength)) {\n                    // We found a packet\n                    packet = bytes.subarray(startIndex, endIndex);\n                    type = probe.ts.parseType(packet, pmt.pid);\n                    switch (type) {\n                        case 'pes':\n                            pesType = probe.ts.parsePesType(packet, pmt.table);\n                            pusi = probe.ts.parsePayloadUnitStartIndicator(packet);\n                            if (pesType === 'audio' && pusi) {\n                                parsed = probe.ts.parsePesTime(packet);\n                                if (parsed) {\n                                    parsed.type = 'audio';\n                                    result.audio.push(parsed);\n                                    endLoop = true;\n                                }\n                            }\n                            break;\n                    }\n                    if (endLoop) {\n                        break;\n                    }\n                    startIndex += MP2T_PACKET_LENGTH;\n                    endIndex += MP2T_PACKET_LENGTH;\n                    continue;\n                } // If we get here, we have somehow become de-synchronized and we need to step\n                // forward one byte at a time until we find a pair of sync bytes that denote\n                // a packet\n\n                startIndex++;\n                endIndex++;\n            } // Start walking from end of segment to get last audio packet\n\n            endIndex = bytes.byteLength;\n            startIndex = endIndex - MP2T_PACKET_LENGTH;\n            endLoop = false;\n            while (startIndex >= 0) {\n                // Look for a pair of start and end sync bytes in the data..\n                if (bytes[startIndex] === SYNC_BYTE && (bytes[endIndex] === SYNC_BYTE || endIndex === bytes.byteLength)) {\n                    // We found a packet\n                    packet = bytes.subarray(startIndex, endIndex);\n                    type = probe.ts.parseType(packet, pmt.pid);\n                    switch (type) {\n                        case 'pes':\n                            pesType = probe.ts.parsePesType(packet, pmt.table);\n                            pusi = probe.ts.parsePayloadUnitStartIndicator(packet);\n                            if (pesType === 'audio' && pusi) {\n                                parsed = probe.ts.parsePesTime(packet);\n                                if (parsed) {\n                                    parsed.type = 'audio';\n                                    result.audio.push(parsed);\n                                    endLoop = true;\n                                }\n                            }\n                            break;\n                    }\n                    if (endLoop) {\n                        break;\n                    }\n                    startIndex -= MP2T_PACKET_LENGTH;\n                    endIndex -= MP2T_PACKET_LENGTH;\n                    continue;\n                } // If we get here, we have somehow become de-synchronized and we need to step\n                // forward one byte at a time until we find a pair of sync bytes that denote\n                // a packet\n\n                startIndex--;\n                endIndex--;\n            }\n        };\n        /**\n         * walks through the segment data from the start and end to get timing information\n         * for the first and last video pes packets as well as timing information for the first\n         * key frame.\n         */\n\n        var parseVideoPes_ = function (bytes, pmt, result) {\n            var startIndex = 0,\n                endIndex = MP2T_PACKET_LENGTH,\n                packet,\n                type,\n                pesType,\n                pusi,\n                parsed,\n                frame,\n                i,\n                pes;\n            var endLoop = false;\n            var currentFrame = {\n                data: [],\n                size: 0\n            }; // Start walking from start of segment to get first video packet\n\n            while (endIndex < bytes.byteLength) {\n                // Look for a pair of start and end sync bytes in the data..\n                if (bytes[startIndex] === SYNC_BYTE && bytes[endIndex] === SYNC_BYTE) {\n                    // We found a packet\n                    packet = bytes.subarray(startIndex, endIndex);\n                    type = probe.ts.parseType(packet, pmt.pid);\n                    switch (type) {\n                        case 'pes':\n                            pesType = probe.ts.parsePesType(packet, pmt.table);\n                            pusi = probe.ts.parsePayloadUnitStartIndicator(packet);\n                            if (pesType === 'video') {\n                                if (pusi && !endLoop) {\n                                    parsed = probe.ts.parsePesTime(packet);\n                                    if (parsed) {\n                                        parsed.type = 'video';\n                                        result.video.push(parsed);\n                                        endLoop = true;\n                                    }\n                                }\n                                if (!result.firstKeyFrame) {\n                                    if (pusi) {\n                                        if (currentFrame.size !== 0) {\n                                            frame = new Uint8Array(currentFrame.size);\n                                            i = 0;\n                                            while (currentFrame.data.length) {\n                                                pes = currentFrame.data.shift();\n                                                frame.set(pes, i);\n                                                i += pes.byteLength;\n                                            }\n                                            if (probe.ts.videoPacketContainsKeyFrame(frame)) {\n                                                var firstKeyFrame = probe.ts.parsePesTime(frame); // PTS/DTS may not be available. Simply *not* setting\n                                                // the keyframe seems to work fine with HLS playback\n                                                // and definitely preferable to a crash with TypeError...\n\n                                                if (firstKeyFrame) {\n                                                    result.firstKeyFrame = firstKeyFrame;\n                                                    result.firstKeyFrame.type = 'video';\n                                                } else {\n                                                    // eslint-disable-next-line\n                                                    console.warn('Failed to extract PTS/DTS from PES at first keyframe. ' + 'This could be an unusual TS segment, or else mux.js did not ' + 'parse your TS segment correctly. If you know your TS ' + 'segments do contain PTS/DTS on keyframes please file a bug ' + 'report! You can try ffprobe to double check for yourself.');\n                                                }\n                                            }\n                                            currentFrame.size = 0;\n                                        }\n                                    }\n                                    currentFrame.data.push(packet);\n                                    currentFrame.size += packet.byteLength;\n                                }\n                            }\n                            break;\n                    }\n                    if (endLoop && result.firstKeyFrame) {\n                        break;\n                    }\n                    startIndex += MP2T_PACKET_LENGTH;\n                    endIndex += MP2T_PACKET_LENGTH;\n                    continue;\n                } // If we get here, we have somehow become de-synchronized and we need to step\n                // forward one byte at a time until we find a pair of sync bytes that denote\n                // a packet\n\n                startIndex++;\n                endIndex++;\n            } // Start walking from end of segment to get last video packet\n\n            endIndex = bytes.byteLength;\n            startIndex = endIndex - MP2T_PACKET_LENGTH;\n            endLoop = false;\n            while (startIndex >= 0) {\n                // Look for a pair of start and end sync bytes in the data..\n                if (bytes[startIndex] === SYNC_BYTE && bytes[endIndex] === SYNC_BYTE) {\n                    // We found a packet\n                    packet = bytes.subarray(startIndex, endIndex);\n                    type = probe.ts.parseType(packet, pmt.pid);\n                    switch (type) {\n                        case 'pes':\n                            pesType = probe.ts.parsePesType(packet, pmt.table);\n                            pusi = probe.ts.parsePayloadUnitStartIndicator(packet);\n                            if (pesType === 'video' && pusi) {\n                                parsed = probe.ts.parsePesTime(packet);\n                                if (parsed) {\n                                    parsed.type = 'video';\n                                    result.video.push(parsed);\n                                    endLoop = true;\n                                }\n                            }\n                            break;\n                    }\n                    if (endLoop) {\n                        break;\n                    }\n                    startIndex -= MP2T_PACKET_LENGTH;\n                    endIndex -= MP2T_PACKET_LENGTH;\n                    continue;\n                } // If we get here, we have somehow become de-synchronized and we need to step\n                // forward one byte at a time until we find a pair of sync bytes that denote\n                // a packet\n\n                startIndex--;\n                endIndex--;\n            }\n        };\n        /**\n         * Adjusts the timestamp information for the segment to account for\n         * rollover and convert to seconds based on pes packet timescale (90khz clock)\n         */\n\n        var adjustTimestamp_ = function (segmentInfo, baseTimestamp) {\n            if (segmentInfo.audio && segmentInfo.audio.length) {\n                var audioBaseTimestamp = baseTimestamp;\n                if (typeof audioBaseTimestamp === 'undefined' || isNaN(audioBaseTimestamp)) {\n                    audioBaseTimestamp = segmentInfo.audio[0].dts;\n                }\n                segmentInfo.audio.forEach(function (info) {\n                    info.dts = handleRollover(info.dts, audioBaseTimestamp);\n                    info.pts = handleRollover(info.pts, audioBaseTimestamp); // time in seconds\n\n                    info.dtsTime = info.dts / ONE_SECOND_IN_TS;\n                    info.ptsTime = info.pts / ONE_SECOND_IN_TS;\n                });\n            }\n            if (segmentInfo.video && segmentInfo.video.length) {\n                var videoBaseTimestamp = baseTimestamp;\n                if (typeof videoBaseTimestamp === 'undefined' || isNaN(videoBaseTimestamp)) {\n                    videoBaseTimestamp = segmentInfo.video[0].dts;\n                }\n                segmentInfo.video.forEach(function (info) {\n                    info.dts = handleRollover(info.dts, videoBaseTimestamp);\n                    info.pts = handleRollover(info.pts, videoBaseTimestamp); // time in seconds\n\n                    info.dtsTime = info.dts / ONE_SECOND_IN_TS;\n                    info.ptsTime = info.pts / ONE_SECOND_IN_TS;\n                });\n                if (segmentInfo.firstKeyFrame) {\n                    var frame = segmentInfo.firstKeyFrame;\n                    frame.dts = handleRollover(frame.dts, videoBaseTimestamp);\n                    frame.pts = handleRollover(frame.pts, videoBaseTimestamp); // time in seconds\n\n                    frame.dtsTime = frame.dts / ONE_SECOND_IN_TS;\n                    frame.ptsTime = frame.pts / ONE_SECOND_IN_TS;\n                }\n            }\n        };\n        /**\n         * inspects the aac data stream for start and end time information\n         */\n\n        var inspectAac_ = function (bytes) {\n            var endLoop = false,\n                audioCount = 0,\n                sampleRate = null,\n                timestamp = null,\n                frameSize = 0,\n                byteIndex = 0,\n                packet;\n            while (bytes.length - byteIndex >= 3) {\n                var type = probe.aac.parseType(bytes, byteIndex);\n                switch (type) {\n                    case 'timed-metadata':\n                        // Exit early because we don't have enough to parse\n                        // the ID3 tag header\n                        if (bytes.length - byteIndex < 10) {\n                            endLoop = true;\n                            break;\n                        }\n                        frameSize = probe.aac.parseId3TagSize(bytes, byteIndex); // Exit early if we don't have enough in the buffer\n                        // to emit a full packet\n\n                        if (frameSize > bytes.length) {\n                            endLoop = true;\n                            break;\n                        }\n                        if (timestamp === null) {\n                            packet = bytes.subarray(byteIndex, byteIndex + frameSize);\n                            timestamp = probe.aac.parseAacTimestamp(packet);\n                        }\n                        byteIndex += frameSize;\n                        break;\n                    case 'audio':\n                        // Exit early because we don't have enough to parse\n                        // the ADTS frame header\n                        if (bytes.length - byteIndex < 7) {\n                            endLoop = true;\n                            break;\n                        }\n                        frameSize = probe.aac.parseAdtsSize(bytes, byteIndex); // Exit early if we don't have enough in the buffer\n                        // to emit a full packet\n\n                        if (frameSize > bytes.length) {\n                            endLoop = true;\n                            break;\n                        }\n                        if (sampleRate === null) {\n                            packet = bytes.subarray(byteIndex, byteIndex + frameSize);\n                            sampleRate = probe.aac.parseSampleRate(packet);\n                        }\n                        audioCount++;\n                        byteIndex += frameSize;\n                        break;\n                    default:\n                        byteIndex++;\n                        break;\n                }\n                if (endLoop) {\n                    return null;\n                }\n            }\n            if (sampleRate === null || timestamp === null) {\n                return null;\n            }\n            var audioTimescale = ONE_SECOND_IN_TS / sampleRate;\n            var result = {\n                audio: [{\n                    type: 'audio',\n                    dts: timestamp,\n                    pts: timestamp\n                }, {\n                    type: 'audio',\n                    dts: timestamp + audioCount * 1024 * audioTimescale,\n                    pts: timestamp + audioCount * 1024 * audioTimescale\n                }]\n            };\n            return result;\n        };\n        /**\n         * inspects the transport stream segment data for start and end time information\n         * of the audio and video tracks (when present) as well as the first key frame's\n         * start time.\n         */\n\n        var inspectTs_ = function (bytes) {\n            var pmt = {\n                pid: null,\n                table: null\n            };\n            var result = {};\n            parsePsi_(bytes, pmt);\n            for (var pid in pmt.table) {\n                if (pmt.table.hasOwnProperty(pid)) {\n                    var type = pmt.table[pid];\n                    switch (type) {\n                        case StreamTypes.H264_STREAM_TYPE:\n                            result.video = [];\n                            parseVideoPes_(bytes, pmt, result);\n                            if (result.video.length === 0) {\n                                delete result.video;\n                            }\n                            break;\n                        case StreamTypes.ADTS_STREAM_TYPE:\n                            result.audio = [];\n                            parseAudioPes_(bytes, pmt, result);\n                            if (result.audio.length === 0) {\n                                delete result.audio;\n                            }\n                            break;\n                    }\n                }\n            }\n            return result;\n        };\n        /**\n         * Inspects segment byte data and returns an object with start and end timing information\n         *\n         * @param {Uint8Array} bytes The segment byte data\n         * @param {Number} baseTimestamp Relative reference timestamp used when adjusting frame\n         *  timestamps for rollover. This value must be in 90khz clock.\n         * @return {Object} Object containing start and end frame timing info of segment.\n         */\n\n        var inspect = function (bytes, baseTimestamp) {\n            var isAacData = probe.aac.isLikelyAacData(bytes);\n            var result;\n            if (isAacData) {\n                result = inspectAac_(bytes);\n            } else {\n                result = inspectTs_(bytes);\n            }\n            if (!result || !result.audio && !result.video) {\n                return null;\n            }\n            adjustTimestamp_(result, baseTimestamp);\n            return result;\n        };\n        var tsInspector = {\n            inspect: inspect,\n            parseAudioPes_: parseAudioPes_\n        };\n        /* global self */\n\n        /**\n         * Re-emits transmuxer events by converting them into messages to the\n         * world outside the worker.\n         *\n         * @param {Object} transmuxer the transmuxer to wire events on\n         * @private\n         */\n\n        const wireTransmuxerEvents = function (self, transmuxer) {\n            transmuxer.on('data', function (segment) {\n                // transfer ownership of the underlying ArrayBuffer\n                // instead of doing a copy to save memory\n                // ArrayBuffers are transferable but generic TypedArrays are not\n                // @link https://developer.mozilla.org/en-US/docs/Web/API/Web_Workers_API/Using_web_workers#Passing_data_by_transferring_ownership_(transferable_objects)\n                const initArray = segment.initSegment;\n                segment.initSegment = {\n                    data: initArray.buffer,\n                    byteOffset: initArray.byteOffset,\n                    byteLength: initArray.byteLength\n                };\n                const typedArray = segment.data;\n                segment.data = typedArray.buffer;\n                self.postMessage({\n                    action: 'data',\n                    segment,\n                    byteOffset: typedArray.byteOffset,\n                    byteLength: typedArray.byteLength\n                }, [segment.data]);\n            });\n            transmuxer.on('done', function (data) {\n                self.postMessage({\n                    action: 'done'\n                });\n            });\n            transmuxer.on('gopInfo', function (gopInfo) {\n                self.postMessage({\n                    action: 'gopInfo',\n                    gopInfo\n                });\n            });\n            transmuxer.on('videoSegmentTimingInfo', function (timingInfo) {\n                const videoSegmentTimingInfo = {\n                    start: {\n                        decode: clock$2.videoTsToSeconds(timingInfo.start.dts),\n                        presentation: clock$2.videoTsToSeconds(timingInfo.start.pts)\n                    },\n                    end: {\n                        decode: clock$2.videoTsToSeconds(timingInfo.end.dts),\n                        presentation: clock$2.videoTsToSeconds(timingInfo.end.pts)\n                    },\n                    baseMediaDecodeTime: clock$2.videoTsToSeconds(timingInfo.baseMediaDecodeTime)\n                };\n                if (timingInfo.prependedContentDuration) {\n                    videoSegmentTimingInfo.prependedContentDuration = clock$2.videoTsToSeconds(timingInfo.prependedContentDuration);\n                }\n                self.postMessage({\n                    action: 'videoSegmentTimingInfo',\n                    videoSegmentTimingInfo\n                });\n            });\n            transmuxer.on('audioSegmentTimingInfo', function (timingInfo) {\n                // Note that all times for [audio/video]SegmentTimingInfo events are in video clock\n                const audioSegmentTimingInfo = {\n                    start: {\n                        decode: clock$2.videoTsToSeconds(timingInfo.start.dts),\n                        presentation: clock$2.videoTsToSeconds(timingInfo.start.pts)\n                    },\n                    end: {\n                        decode: clock$2.videoTsToSeconds(timingInfo.end.dts),\n                        presentation: clock$2.videoTsToSeconds(timingInfo.end.pts)\n                    },\n                    baseMediaDecodeTime: clock$2.videoTsToSeconds(timingInfo.baseMediaDecodeTime)\n                };\n                if (timingInfo.prependedContentDuration) {\n                    audioSegmentTimingInfo.prependedContentDuration = clock$2.videoTsToSeconds(timingInfo.prependedContentDuration);\n                }\n                self.postMessage({\n                    action: 'audioSegmentTimingInfo',\n                    audioSegmentTimingInfo\n                });\n            });\n            transmuxer.on('id3Frame', function (id3Frame) {\n                self.postMessage({\n                    action: 'id3Frame',\n                    id3Frame\n                });\n            });\n            transmuxer.on('caption', function (caption) {\n                self.postMessage({\n                    action: 'caption',\n                    caption\n                });\n            });\n            transmuxer.on('trackinfo', function (trackInfo) {\n                self.postMessage({\n                    action: 'trackinfo',\n                    trackInfo\n                });\n            });\n            transmuxer.on('audioTimingInfo', function (audioTimingInfo) {\n                // convert to video TS since we prioritize video time over audio\n                self.postMessage({\n                    action: 'audioTimingInfo',\n                    audioTimingInfo: {\n                        start: clock$2.videoTsToSeconds(audioTimingInfo.start),\n                        end: clock$2.videoTsToSeconds(audioTimingInfo.end)\n                    }\n                });\n            });\n            transmuxer.on('videoTimingInfo', function (videoTimingInfo) {\n                self.postMessage({\n                    action: 'videoTimingInfo',\n                    videoTimingInfo: {\n                        start: clock$2.videoTsToSeconds(videoTimingInfo.start),\n                        end: clock$2.videoTsToSeconds(videoTimingInfo.end)\n                    }\n                });\n            });\n            transmuxer.on('log', function (log) {\n                self.postMessage({\n                    action: 'log',\n                    log\n                });\n            });\n        };\n        /**\n         * All incoming messages route through this hash. If no function exists\n         * to handle an incoming message, then we ignore the message.\n         *\n         * @class MessageHandlers\n         * @param {Object} options the options to initialize with\n         */\n\n        class MessageHandlers {\n            constructor(self, options) {\n                this.options = options || {};\n                this.self = self;\n                this.init();\n            }\n            /**\n             * initialize our web worker and wire all the events.\n             */\n\n            init() {\n                if (this.transmuxer) {\n                    this.transmuxer.dispose();\n                }\n                this.transmuxer = new transmuxer.Transmuxer(this.options);\n                wireTransmuxerEvents(this.self, this.transmuxer);\n            }\n            pushMp4Captions(data) {\n                if (!this.captionParser) {\n                    this.captionParser = new captionParser();\n                    this.captionParser.init();\n                }\n                const segment = new Uint8Array(data.data, data.byteOffset, data.byteLength);\n                const parsed = this.captionParser.parse(segment, data.trackIds, data.timescales);\n                this.self.postMessage({\n                    action: 'mp4Captions',\n                    captions: parsed && parsed.captions || [],\n                    logs: parsed && parsed.logs || [],\n                    data: segment.buffer\n                }, [segment.buffer]);\n            }\n            probeMp4StartTime({\n                                  timescales,\n                                  data\n                              }) {\n                const startTime = probe$2.startTime(timescales, data);\n                this.self.postMessage({\n                    action: 'probeMp4StartTime',\n                    startTime,\n                    data\n                }, [data.buffer]);\n            }\n            probeMp4Tracks({\n                               data\n                           }) {\n                const tracks = probe$2.tracks(data);\n                this.self.postMessage({\n                    action: 'probeMp4Tracks',\n                    tracks,\n                    data\n                }, [data.buffer]);\n            }\n            /**\n             * Probe an mpeg2-ts segment to determine the start time of the segment in it's\n             * internal \"media time,\" as well as whether it contains video and/or audio.\n             *\n             * @private\n             * @param {Uint8Array} bytes - segment bytes\n             * @param {number} baseStartTime\n             *        Relative reference timestamp used when adjusting frame timestamps for rollover.\n             *        This value should be in seconds, as it's converted to a 90khz clock within the\n             *        function body.\n             * @return {Object} The start time of the current segment in \"media time\" as well as\n             *                  whether it contains video and/or audio\n             */\n\n            probeTs({\n                        data,\n                        baseStartTime\n                    }) {\n                const tsStartTime = typeof baseStartTime === 'number' && !isNaN(baseStartTime) ? baseStartTime * clock$2.ONE_SECOND_IN_TS : void 0;\n                const timeInfo = tsInspector.inspect(data, tsStartTime);\n                let result = null;\n                if (timeInfo) {\n                    result = {\n                        // each type's time info comes back as an array of 2 times, start and end\n                        hasVideo: timeInfo.video && timeInfo.video.length === 2 || false,\n                        hasAudio: timeInfo.audio && timeInfo.audio.length === 2 || false\n                    };\n                    if (result.hasVideo) {\n                        result.videoStart = timeInfo.video[0].ptsTime;\n                    }\n                    if (result.hasAudio) {\n                        result.audioStart = timeInfo.audio[0].ptsTime;\n                    }\n                }\n                this.self.postMessage({\n                    action: 'probeTs',\n                    result,\n                    data\n                }, [data.buffer]);\n            }\n            clearAllMp4Captions() {\n                if (this.captionParser) {\n                    this.captionParser.clearAllCaptions();\n                }\n            }\n            clearParsedMp4Captions() {\n                if (this.captionParser) {\n                    this.captionParser.clearParsedCaptions();\n                }\n            }\n            /**\n             * Adds data (a ts segment) to the start of the transmuxer pipeline for\n             * processing.\n             *\n             * @param {ArrayBuffer} data data to push into the muxer\n             */\n\n            push(data) {\n                // Cast array buffer to correct type for transmuxer\n                const segment = new Uint8Array(data.data, data.byteOffset, data.byteLength);\n                this.transmuxer.push(segment);\n            }\n            /**\n             * Recreate the transmuxer so that the next segment added via `push`\n             * start with a fresh transmuxer.\n             */\n\n            reset() {\n                this.transmuxer.reset();\n            }\n            /**\n             * Set the value that will be used as the `baseMediaDecodeTime` time for the\n             * next segment pushed in. Subsequent segments will have their `baseMediaDecodeTime`\n             * set relative to the first based on the PTS values.\n             *\n             * @param {Object} data used to set the timestamp offset in the muxer\n             */\n\n            setTimestampOffset(data) {\n                const timestampOffset = data.timestampOffset || 0;\n                this.transmuxer.setBaseMediaDecodeTime(Math.round(clock$2.secondsToVideoTs(timestampOffset)));\n            }\n            setAudioAppendStart(data) {\n                this.transmuxer.setAudioAppendStart(Math.ceil(clock$2.secondsToVideoTs(data.appendStart)));\n            }\n            setRemux(data) {\n                this.transmuxer.setRemux(data.remux);\n            }\n            /**\n             * Forces the pipeline to finish processing the last segment and emit it's\n             * results.\n             *\n             * @param {Object} data event data, not really used\n             */\n\n            flush(data) {\n                this.transmuxer.flush(); // transmuxed done action is fired after both audio/video pipelines are flushed\n\n                self.postMessage({\n                    action: 'done',\n                    type: 'transmuxed'\n                });\n            }\n            endTimeline() {\n                this.transmuxer.endTimeline(); // transmuxed endedtimeline action is fired after both audio/video pipelines end their\n                // timelines\n\n                self.postMessage({\n                    action: 'endedtimeline',\n                    type: 'transmuxed'\n                });\n            }\n            alignGopsWith(data) {\n                this.transmuxer.alignGopsWith(data.gopsToAlignWith.slice());\n            }\n        }\n        /**\n         * Our web worker interface so that things can talk to mux.js\n         * that will be running in a web worker. the scope is passed to this by\n         * webworkify.\n         *\n         * @param {Object} self the scope for the web worker\n         */\n\n        self.onmessage = function (event) {\n            if (event.data.action === 'init' && event.data.options) {\n                this.messageHandlers = new MessageHandlers(self, event.data.options);\n                return;\n            }\n            if (!this.messageHandlers) {\n                this.messageHandlers = new MessageHandlers(self);\n            }\n            if (event.data && event.data.action && event.data.action !== 'init') {\n                if (this.messageHandlers[event.data.action]) {\n                    this.messageHandlers[event.data.action](event.data);\n                }\n            }\n        };\n    }));\n    var TransmuxWorker = factory(workerCode$1);\n    /* rollup-plugin-worker-factory end for worker!/Users/ddashkevich/projects/http-streaming/src/transmuxer-worker.js */\n\n    const handleData_ = (event, transmuxedData, callback) => {\n        const {\n            type,\n            initSegment,\n            captions,\n            captionStreams,\n            metadata,\n            videoFrameDtsTime,\n            videoFramePtsTime\n        } = event.data.segment;\n        transmuxedData.buffer.push({\n            captions,\n            captionStreams,\n            metadata\n        });\n        const boxes = event.data.segment.boxes || {\n            data: event.data.segment.data\n        };\n        const result = {\n            type,\n            // cast ArrayBuffer to TypedArray\n            data: new Uint8Array(boxes.data, boxes.data.byteOffset, boxes.data.byteLength),\n            initSegment: new Uint8Array(initSegment.data, initSegment.byteOffset, initSegment.byteLength)\n        };\n        if (typeof videoFrameDtsTime !== 'undefined') {\n            result.videoFrameDtsTime = videoFrameDtsTime;\n        }\n        if (typeof videoFramePtsTime !== 'undefined') {\n            result.videoFramePtsTime = videoFramePtsTime;\n        }\n        callback(result);\n    };\n    const handleDone_ = ({\n                             transmuxedData,\n                             callback\n                         }) => {\n        // Previously we only returned data on data events,\n        // not on done events. Clear out the buffer to keep that consistent.\n        transmuxedData.buffer = []; // all buffers should have been flushed from the muxer, so start processing anything we\n        // have received\n\n        callback(transmuxedData);\n    };\n    const handleGopInfo_ = (event, transmuxedData) => {\n        transmuxedData.gopInfo = event.data.gopInfo;\n    };\n    const processTransmux = options => {\n        const {\n            transmuxer,\n            bytes,\n            audioAppendStart,\n            gopsToAlignWith,\n            remux,\n            onData,\n            onTrackInfo,\n            onAudioTimingInfo,\n            onVideoTimingInfo,\n            onVideoSegmentTimingInfo,\n            onAudioSegmentTimingInfo,\n            onId3,\n            onCaptions,\n            onDone,\n            onEndedTimeline,\n            onTransmuxerLog,\n            isEndOfTimeline\n        } = options;\n        const transmuxedData = {\n            buffer: []\n        };\n        let waitForEndedTimelineEvent = isEndOfTimeline;\n        const handleMessage = event => {\n            if (transmuxer.currentTransmux !== options) {\n                // disposed\n                return;\n            }\n            if (event.data.action === 'data') {\n                handleData_(event, transmuxedData, onData);\n            }\n            if (event.data.action === 'trackinfo') {\n                onTrackInfo(event.data.trackInfo);\n            }\n            if (event.data.action === 'gopInfo') {\n                handleGopInfo_(event, transmuxedData);\n            }\n            if (event.data.action === 'audioTimingInfo') {\n                onAudioTimingInfo(event.data.audioTimingInfo);\n            }\n            if (event.data.action === 'videoTimingInfo') {\n                onVideoTimingInfo(event.data.videoTimingInfo);\n            }\n            if (event.data.action === 'videoSegmentTimingInfo') {\n                onVideoSegmentTimingInfo(event.data.videoSegmentTimingInfo);\n            }\n            if (event.data.action === 'audioSegmentTimingInfo') {\n                onAudioSegmentTimingInfo(event.data.audioSegmentTimingInfo);\n            }\n            if (event.data.action === 'id3Frame') {\n                onId3([event.data.id3Frame], event.data.id3Frame.dispatchType);\n            }\n            if (event.data.action === 'caption') {\n                onCaptions(event.data.caption);\n            }\n            if (event.data.action === 'endedtimeline') {\n                waitForEndedTimelineEvent = false;\n                onEndedTimeline();\n            }\n            if (event.data.action === 'log') {\n                onTransmuxerLog(event.data.log);\n            } // wait for the transmuxed event since we may have audio and video\n\n            if (event.data.type !== 'transmuxed') {\n                return;\n            } // If the \"endedtimeline\" event has not yet fired, and this segment represents the end\n            // of a timeline, that means there may still be data events before the segment\n            // processing can be considerred complete. In that case, the final event should be\n            // an \"endedtimeline\" event with the type \"transmuxed.\"\n\n            if (waitForEndedTimelineEvent) {\n                return;\n            }\n            transmuxer.onmessage = null;\n            handleDone_({\n                transmuxedData,\n                callback: onDone\n            });\n            /* eslint-disable no-use-before-define */\n\n            dequeue(transmuxer);\n            /* eslint-enable */\n        };\n\n        transmuxer.onmessage = handleMessage;\n        if (audioAppendStart) {\n            transmuxer.postMessage({\n                action: 'setAudioAppendStart',\n                appendStart: audioAppendStart\n            });\n        } // allow empty arrays to be passed to clear out GOPs\n\n        if (Array.isArray(gopsToAlignWith)) {\n            transmuxer.postMessage({\n                action: 'alignGopsWith',\n                gopsToAlignWith\n            });\n        }\n        if (typeof remux !== 'undefined') {\n            transmuxer.postMessage({\n                action: 'setRemux',\n                remux\n            });\n        }\n        if (bytes.byteLength) {\n            const buffer = bytes instanceof ArrayBuffer ? bytes : bytes.buffer;\n            const byteOffset = bytes instanceof ArrayBuffer ? 0 : bytes.byteOffset;\n            transmuxer.postMessage({\n                action: 'push',\n                // Send the typed-array of data as an ArrayBuffer so that\n                // it can be sent as a \"Transferable\" and avoid the costly\n                // memory copy\n                data: buffer,\n                // To recreate the original typed-array, we need information\n                // about what portion of the ArrayBuffer it was a view into\n                byteOffset,\n                byteLength: bytes.byteLength\n            }, [buffer]);\n        }\n        if (isEndOfTimeline) {\n            transmuxer.postMessage({\n                action: 'endTimeline'\n            });\n        } // even if we didn't push any bytes, we have to make sure we flush in case we reached\n        // the end of the segment\n\n        transmuxer.postMessage({\n            action: 'flush'\n        });\n    };\n    const dequeue = transmuxer => {\n        transmuxer.currentTransmux = null;\n        if (transmuxer.transmuxQueue.length) {\n            transmuxer.currentTransmux = transmuxer.transmuxQueue.shift();\n            if (typeof transmuxer.currentTransmux === 'function') {\n                transmuxer.currentTransmux();\n            } else {\n                processTransmux(transmuxer.currentTransmux);\n            }\n        }\n    };\n    const processAction = (transmuxer, action) => {\n        transmuxer.postMessage({\n            action\n        });\n        dequeue(transmuxer);\n    };\n    const enqueueAction = (action, transmuxer) => {\n        if (!transmuxer.currentTransmux) {\n            transmuxer.currentTransmux = action;\n            processAction(transmuxer, action);\n            return;\n        }\n        transmuxer.transmuxQueue.push(processAction.bind(null, transmuxer, action));\n    };\n    const reset = transmuxer => {\n        enqueueAction('reset', transmuxer);\n    };\n    const endTimeline = transmuxer => {\n        enqueueAction('endTimeline', transmuxer);\n    };\n    const transmux = options => {\n        if (!options.transmuxer.currentTransmux) {\n            options.transmuxer.currentTransmux = options;\n            processTransmux(options);\n            return;\n        }\n        options.transmuxer.transmuxQueue.push(options);\n    };\n    const createTransmuxer = options => {\n        const transmuxer = new TransmuxWorker();\n        transmuxer.currentTransmux = null;\n        transmuxer.transmuxQueue = [];\n        const term = transmuxer.terminate;\n        transmuxer.terminate = () => {\n            transmuxer.currentTransmux = null;\n            transmuxer.transmuxQueue.length = 0;\n            return term.call(transmuxer);\n        };\n        transmuxer.postMessage({\n            action: 'init',\n            options\n        });\n        return transmuxer;\n    };\n    var segmentTransmuxer = {\n        reset,\n        endTimeline,\n        transmux,\n        createTransmuxer\n    };\n    const workerCallback = function (options) {\n        const transmuxer = options.transmuxer;\n        const endAction = options.endAction || options.action;\n        const callback = options.callback;\n        const message = _extends$1({}, options, {\n            endAction: null,\n            transmuxer: null,\n            callback: null\n        });\n        const listenForEndEvent = event => {\n            if (event.data.action !== endAction) {\n                return;\n            }\n            transmuxer.removeEventListener('message', listenForEndEvent); // transfer ownership of bytes back to us.\n\n            if (event.data.data) {\n                event.data.data = new Uint8Array(event.data.data, options.byteOffset || 0, options.byteLength || event.data.data.byteLength);\n                if (options.data) {\n                    options.data = event.data.data;\n                }\n            }\n            callback(event.data);\n        };\n        transmuxer.addEventListener('message', listenForEndEvent);\n        if (options.data) {\n            const isArrayBuffer = options.data instanceof ArrayBuffer;\n            message.byteOffset = isArrayBuffer ? 0 : options.data.byteOffset;\n            message.byteLength = options.data.byteLength;\n            const transfers = [isArrayBuffer ? options.data : options.data.buffer];\n            transmuxer.postMessage(message, transfers);\n        } else {\n            transmuxer.postMessage(message);\n        }\n    };\n    const REQUEST_ERRORS = {\n        FAILURE: 2,\n        TIMEOUT: -101,\n        ABORTED: -102\n    };\n    /**\n     * Abort all requests\n     *\n     * @param {Object} activeXhrs - an object that tracks all XHR requests\n     */\n\n    const abortAll = activeXhrs => {\n        activeXhrs.forEach(xhr => {\n            xhr.abort();\n        });\n    };\n    /**\n     * Gather important bandwidth stats once a request has completed\n     *\n     * @param {Object} request - the XHR request from which to gather stats\n     */\n\n    const getRequestStats = request => {\n        return {\n            bandwidth: request.bandwidth,\n            bytesReceived: request.bytesReceived || 0,\n            roundTripTime: request.roundTripTime || 0\n        };\n    };\n    /**\n     * If possible gather bandwidth stats as a request is in\n     * progress\n     *\n     * @param {Event} progressEvent - an event object from an XHR's progress event\n     */\n\n    const getProgressStats = progressEvent => {\n        const request = progressEvent.target;\n        const roundTripTime = Date.now() - request.requestTime;\n        const stats = {\n            bandwidth: Infinity,\n            bytesReceived: 0,\n            roundTripTime: roundTripTime || 0\n        };\n        stats.bytesReceived = progressEvent.loaded; // This can result in Infinity if stats.roundTripTime is 0 but that is ok\n        // because we should only use bandwidth stats on progress to determine when\n        // abort a request early due to insufficient bandwidth\n\n        stats.bandwidth = Math.floor(stats.bytesReceived / stats.roundTripTime * 8 * 1000);\n        return stats;\n    };\n    /**\n     * Handle all error conditions in one place and return an object\n     * with all the information\n     *\n     * @param {Error|null} error - if non-null signals an error occured with the XHR\n     * @param {Object} request -  the XHR request that possibly generated the error\n     */\n\n    const handleErrors = (error, request) => {\n        if (request.timedout) {\n            return {\n                status: request.status,\n                message: 'HLS request timed-out at URL: ' + request.uri,\n                code: REQUEST_ERRORS.TIMEOUT,\n                xhr: request\n            };\n        }\n        if (request.aborted) {\n            return {\n                status: request.status,\n                message: 'HLS request aborted at URL: ' + request.uri,\n                code: REQUEST_ERRORS.ABORTED,\n                xhr: request\n            };\n        }\n        if (error) {\n            return {\n                status: request.status,\n                message: 'HLS request errored at URL: ' + request.uri,\n                code: REQUEST_ERRORS.FAILURE,\n                xhr: request\n            };\n        }\n        if (request.responseType === 'arraybuffer' && request.response.byteLength === 0) {\n            return {\n                status: request.status,\n                message: 'Empty HLS response at URL: ' + request.uri,\n                code: REQUEST_ERRORS.FAILURE,\n                xhr: request\n            };\n        }\n        return null;\n    };\n    /**\n     * Handle responses for key data and convert the key data to the correct format\n     * for the decryption step later\n     *\n     * @param {Object} segment - a simplified copy of the segmentInfo object\n     *                           from SegmentLoader\n     * @param {Array} objects - objects to add the key bytes to.\n     * @param {Function} finishProcessingFn - a callback to execute to continue processing\n     *                                        this request\n     */\n\n    const handleKeyResponse = (segment, objects, finishProcessingFn) => (error, request) => {\n        const response = request.response;\n        const errorObj = handleErrors(error, request);\n        if (errorObj) {\n            return finishProcessingFn(errorObj, segment);\n        }\n        if (response.byteLength !== 16) {\n            return finishProcessingFn({\n                status: request.status,\n                message: 'Invalid HLS key at URL: ' + request.uri,\n                code: REQUEST_ERRORS.FAILURE,\n                xhr: request\n            }, segment);\n        }\n        const view = new DataView(response);\n        const bytes = new Uint32Array([view.getUint32(0), view.getUint32(4), view.getUint32(8), view.getUint32(12)]);\n        for (let i = 0; i < objects.length; i++) {\n            objects[i].bytes = bytes;\n        }\n        return finishProcessingFn(null, segment);\n    };\n    const parseInitSegment = (segment, callback) => {\n        const type = detectContainerForBytes(segment.map.bytes); // TODO: We should also handle ts init segments here, but we\n        // only know how to parse mp4 init segments at the moment\n\n        if (type !== 'mp4') {\n            const uri = segment.map.resolvedUri || segment.map.uri;\n            return callback({\n                internal: true,\n                message: `Found unsupported ${type || 'unknown'} container for initialization segment at URL: ${uri}`,\n                code: REQUEST_ERRORS.FAILURE\n            });\n        }\n        workerCallback({\n            action: 'probeMp4Tracks',\n            data: segment.map.bytes,\n            transmuxer: segment.transmuxer,\n            callback: ({\n                           tracks,\n                           data\n                       }) => {\n                // transfer bytes back to us\n                segment.map.bytes = data;\n                tracks.forEach(function (track) {\n                    segment.map.tracks = segment.map.tracks || {}; // only support one track of each type for now\n\n                    if (segment.map.tracks[track.type]) {\n                        return;\n                    }\n                    segment.map.tracks[track.type] = track;\n                    if (typeof track.id === 'number' && track.timescale) {\n                        segment.map.timescales = segment.map.timescales || {};\n                        segment.map.timescales[track.id] = track.timescale;\n                    }\n                });\n                return callback(null);\n            }\n        });\n    };\n    /**\n     * Handle init-segment responses\n     *\n     * @param {Object} segment - a simplified copy of the segmentInfo object\n     *                           from SegmentLoader\n     * @param {Function} finishProcessingFn - a callback to execute to continue processing\n     *                                        this request\n     */\n\n    const handleInitSegmentResponse = ({\n                                           segment,\n                                           finishProcessingFn\n                                       }) => (error, request) => {\n        const errorObj = handleErrors(error, request);\n        if (errorObj) {\n            return finishProcessingFn(errorObj, segment);\n        }\n        const bytes = new Uint8Array(request.response); // init segment is encypted, we will have to wait\n        // until the key request is done to decrypt.\n\n        if (segment.map.key) {\n            segment.map.encryptedBytes = bytes;\n            return finishProcessingFn(null, segment);\n        }\n        segment.map.bytes = bytes;\n        parseInitSegment(segment, function (parseError) {\n            if (parseError) {\n                parseError.xhr = request;\n                parseError.status = request.status;\n                return finishProcessingFn(parseError, segment);\n            }\n            finishProcessingFn(null, segment);\n        });\n    };\n    /**\n     * Response handler for segment-requests being sure to set the correct\n     * property depending on whether the segment is encryped or not\n     * Also records and keeps track of stats that are used for ABR purposes\n     *\n     * @param {Object} segment - a simplified copy of the segmentInfo object\n     *                           from SegmentLoader\n     * @param {Function} finishProcessingFn - a callback to execute to continue processing\n     *                                        this request\n     */\n\n    const handleSegmentResponse = ({\n                                       segment,\n                                       finishProcessingFn,\n                                       responseType\n                                   }) => (error, request) => {\n        const errorObj = handleErrors(error, request);\n        if (errorObj) {\n            return finishProcessingFn(errorObj, segment);\n        }\n        const newBytes =\n            // although responseText \"should\" exist, this guard serves to prevent an error being\n            // thrown for two primary cases:\n            // 1. the mime type override stops working, or is not implemented for a specific\n            //    browser\n            // 2. when using mock XHR libraries like sinon that do not allow the override behavior\n            responseType === 'arraybuffer' || !request.responseText ? request.response : stringToArrayBuffer(request.responseText.substring(segment.lastReachedChar || 0));\n        segment.stats = getRequestStats(request);\n        if (segment.key) {\n            segment.encryptedBytes = new Uint8Array(newBytes);\n        } else {\n            segment.bytes = new Uint8Array(newBytes);\n        }\n        return finishProcessingFn(null, segment);\n    };\n    const transmuxAndNotify = ({\n                                   segment,\n                                   bytes,\n                                   trackInfoFn,\n                                   timingInfoFn,\n                                   videoSegmentTimingInfoFn,\n                                   audioSegmentTimingInfoFn,\n                                   id3Fn,\n                                   captionsFn,\n                                   isEndOfTimeline,\n                                   endedTimelineFn,\n                                   dataFn,\n                                   doneFn,\n                                   onTransmuxerLog\n                               }) => {\n        const fmp4Tracks = segment.map && segment.map.tracks || {};\n        const isMuxed = Boolean(fmp4Tracks.audio && fmp4Tracks.video); // Keep references to each function so we can null them out after we're done with them.\n        // One reason for this is that in the case of full segments, we want to trust start\n        // times from the probe, rather than the transmuxer.\n\n        let audioStartFn = timingInfoFn.bind(null, segment, 'audio', 'start');\n        const audioEndFn = timingInfoFn.bind(null, segment, 'audio', 'end');\n        let videoStartFn = timingInfoFn.bind(null, segment, 'video', 'start');\n        const videoEndFn = timingInfoFn.bind(null, segment, 'video', 'end');\n        const finish = () => transmux({\n            bytes,\n            transmuxer: segment.transmuxer,\n            audioAppendStart: segment.audioAppendStart,\n            gopsToAlignWith: segment.gopsToAlignWith,\n            remux: isMuxed,\n            onData: result => {\n                result.type = result.type === 'combined' ? 'video' : result.type;\n                dataFn(segment, result);\n            },\n            onTrackInfo: trackInfo => {\n                if (trackInfoFn) {\n                    if (isMuxed) {\n                        trackInfo.isMuxed = true;\n                    }\n                    trackInfoFn(segment, trackInfo);\n                }\n            },\n            onAudioTimingInfo: audioTimingInfo => {\n                // we only want the first start value we encounter\n                if (audioStartFn && typeof audioTimingInfo.start !== 'undefined') {\n                    audioStartFn(audioTimingInfo.start);\n                    audioStartFn = null;\n                } // we want to continually update the end time\n\n                if (audioEndFn && typeof audioTimingInfo.end !== 'undefined') {\n                    audioEndFn(audioTimingInfo.end);\n                }\n            },\n            onVideoTimingInfo: videoTimingInfo => {\n                // we only want the first start value we encounter\n                if (videoStartFn && typeof videoTimingInfo.start !== 'undefined') {\n                    videoStartFn(videoTimingInfo.start);\n                    videoStartFn = null;\n                } // we want to continually update the end time\n\n                if (videoEndFn && typeof videoTimingInfo.end !== 'undefined') {\n                    videoEndFn(videoTimingInfo.end);\n                }\n            },\n            onVideoSegmentTimingInfo: videoSegmentTimingInfo => {\n                videoSegmentTimingInfoFn(videoSegmentTimingInfo);\n            },\n            onAudioSegmentTimingInfo: audioSegmentTimingInfo => {\n                audioSegmentTimingInfoFn(audioSegmentTimingInfo);\n            },\n            onId3: (id3Frames, dispatchType) => {\n                id3Fn(segment, id3Frames, dispatchType);\n            },\n            onCaptions: captions => {\n                captionsFn(segment, [captions]);\n            },\n            isEndOfTimeline,\n            onEndedTimeline: () => {\n                endedTimelineFn();\n            },\n            onTransmuxerLog,\n            onDone: result => {\n                if (!doneFn) {\n                    return;\n                }\n                result.type = result.type === 'combined' ? 'video' : result.type;\n                doneFn(null, segment, result);\n            }\n        }); // In the transmuxer, we don't yet have the ability to extract a \"proper\" start time.\n        // Meaning cached frame data may corrupt our notion of where this segment\n        // really starts. To get around this, probe for the info needed.\n\n        workerCallback({\n            action: 'probeTs',\n            transmuxer: segment.transmuxer,\n            data: bytes,\n            baseStartTime: segment.baseStartTime,\n            callback: data => {\n                segment.bytes = bytes = data.data;\n                const probeResult = data.result;\n                if (probeResult) {\n                    trackInfoFn(segment, {\n                        hasAudio: probeResult.hasAudio,\n                        hasVideo: probeResult.hasVideo,\n                        isMuxed\n                    });\n                    trackInfoFn = null;\n                    if (probeResult.hasAudio && !isMuxed) {\n                        audioStartFn(probeResult.audioStart);\n                    }\n                    if (probeResult.hasVideo) {\n                        videoStartFn(probeResult.videoStart);\n                    }\n                    audioStartFn = null;\n                    videoStartFn = null;\n                }\n                finish();\n            }\n        });\n    };\n    const handleSegmentBytes = ({\n                                    segment,\n                                    bytes,\n                                    trackInfoFn,\n                                    timingInfoFn,\n                                    videoSegmentTimingInfoFn,\n                                    audioSegmentTimingInfoFn,\n                                    id3Fn,\n                                    captionsFn,\n                                    isEndOfTimeline,\n                                    endedTimelineFn,\n                                    dataFn,\n                                    doneFn,\n                                    onTransmuxerLog\n                                }) => {\n        let bytesAsUint8Array = new Uint8Array(bytes); // TODO:\n        // We should have a handler that fetches the number of bytes required\n        // to check if something is fmp4. This will allow us to save bandwidth\n        // because we can only exclude a playlist and abort requests\n        // by codec after trackinfo triggers.\n\n        if (isLikelyFmp4MediaSegment(bytesAsUint8Array)) {\n            segment.isFmp4 = true;\n            const {\n                tracks\n            } = segment.map;\n            const trackInfo = {\n                isFmp4: true,\n                hasVideo: !!tracks.video,\n                hasAudio: !!tracks.audio\n            }; // if we have a audio track, with a codec that is not set to\n            // encrypted audio\n\n            if (tracks.audio && tracks.audio.codec && tracks.audio.codec !== 'enca') {\n                trackInfo.audioCodec = tracks.audio.codec;\n            } // if we have a video track, with a codec that is not set to\n            // encrypted video\n\n            if (tracks.video && tracks.video.codec && tracks.video.codec !== 'encv') {\n                trackInfo.videoCodec = tracks.video.codec;\n            }\n            if (tracks.video && tracks.audio) {\n                trackInfo.isMuxed = true;\n            } // since we don't support appending fmp4 data on progress, we know we have the full\n            // segment here\n\n            trackInfoFn(segment, trackInfo); // The probe doesn't provide the segment end time, so only callback with the start\n            // time. The end time can be roughly calculated by the receiver using the duration.\n            //\n            // Note that the start time returned by the probe reflects the baseMediaDecodeTime, as\n            // that is the true start of the segment (where the playback engine should begin\n            // decoding).\n\n            const finishLoading = captions => {\n                // if the track still has audio at this point it is only possible\n                // for it to be audio only. See `tracks.video && tracks.audio` if statement\n                // above.\n                // we make sure to use segment.bytes here as that\n                dataFn(segment, {\n                    data: bytesAsUint8Array,\n                    type: trackInfo.hasAudio && !trackInfo.isMuxed ? 'audio' : 'video'\n                });\n                if (captions && captions.length) {\n                    captionsFn(segment, captions);\n                }\n                doneFn(null, segment, {});\n            };\n            workerCallback({\n                action: 'probeMp4StartTime',\n                timescales: segment.map.timescales,\n                data: bytesAsUint8Array,\n                transmuxer: segment.transmuxer,\n                callback: ({\n                               data,\n                               startTime\n                           }) => {\n                    // transfer bytes back to us\n                    bytes = data.buffer;\n                    segment.bytes = bytesAsUint8Array = data;\n                    if (trackInfo.hasAudio && !trackInfo.isMuxed) {\n                        timingInfoFn(segment, 'audio', 'start', startTime);\n                    }\n                    if (trackInfo.hasVideo) {\n                        timingInfoFn(segment, 'video', 'start', startTime);\n                    } // Run through the CaptionParser in case there are captions.\n                    // Initialize CaptionParser if it hasn't been yet\n\n                    if (!tracks.video || !data.byteLength || !segment.transmuxer) {\n                        finishLoading();\n                        return;\n                    }\n                    workerCallback({\n                        action: 'pushMp4Captions',\n                        endAction: 'mp4Captions',\n                        transmuxer: segment.transmuxer,\n                        data: bytesAsUint8Array,\n                        timescales: segment.map.timescales,\n                        trackIds: [tracks.video.id],\n                        callback: message => {\n                            // transfer bytes back to us\n                            bytes = message.data.buffer;\n                            segment.bytes = bytesAsUint8Array = message.data;\n                            message.logs.forEach(function (log) {\n                                onTransmuxerLog(merge(log, {\n                                    stream: 'mp4CaptionParser'\n                                }));\n                            });\n                            finishLoading(message.captions);\n                        }\n                    });\n                }\n            });\n            return;\n        } // VTT or other segments that don't need processing\n\n        if (!segment.transmuxer) {\n            doneFn(null, segment, {});\n            return;\n        }\n        if (typeof segment.container === 'undefined') {\n            segment.container = detectContainerForBytes(bytesAsUint8Array);\n        }\n        if (segment.container !== 'ts' && segment.container !== 'aac') {\n            trackInfoFn(segment, {\n                hasAudio: false,\n                hasVideo: false\n            });\n            doneFn(null, segment, {});\n            return;\n        } // ts or aac\n\n        transmuxAndNotify({\n            segment,\n            bytes,\n            trackInfoFn,\n            timingInfoFn,\n            videoSegmentTimingInfoFn,\n            audioSegmentTimingInfoFn,\n            id3Fn,\n            captionsFn,\n            isEndOfTimeline,\n            endedTimelineFn,\n            dataFn,\n            doneFn,\n            onTransmuxerLog\n        });\n    };\n    const decrypt = function ({\n                                  id,\n                                  key,\n                                  encryptedBytes,\n                                  decryptionWorker\n                              }, callback) {\n        const decryptionHandler = event => {\n            if (event.data.source === id) {\n                decryptionWorker.removeEventListener('message', decryptionHandler);\n                const decrypted = event.data.decrypted;\n                callback(new Uint8Array(decrypted.bytes, decrypted.byteOffset, decrypted.byteLength));\n            }\n        };\n        decryptionWorker.addEventListener('message', decryptionHandler);\n        let keyBytes;\n        if (key.bytes.slice) {\n            keyBytes = key.bytes.slice();\n        } else {\n            keyBytes = new Uint32Array(Array.prototype.slice.call(key.bytes));\n        } // incrementally decrypt the bytes\n\n        decryptionWorker.postMessage(createTransferableMessage({\n            source: id,\n            encrypted: encryptedBytes,\n            key: keyBytes,\n            iv: key.iv\n        }), [encryptedBytes.buffer, keyBytes.buffer]);\n    };\n    /**\n     * Decrypt the segment via the decryption web worker\n     *\n     * @param {WebWorker} decryptionWorker - a WebWorker interface to AES-128 decryption\n     *                                       routines\n     * @param {Object} segment - a simplified copy of the segmentInfo object\n     *                           from SegmentLoader\n     * @param {Function} trackInfoFn - a callback that receives track info\n     * @param {Function} timingInfoFn - a callback that receives timing info\n     * @param {Function} videoSegmentTimingInfoFn\n     *                   a callback that receives video timing info based on media times and\n     *                   any adjustments made by the transmuxer\n     * @param {Function} audioSegmentTimingInfoFn\n     *                   a callback that receives audio timing info based on media times and\n     *                   any adjustments made by the transmuxer\n     * @param {boolean}  isEndOfTimeline\n     *                   true if this segment represents the last segment in a timeline\n     * @param {Function} endedTimelineFn\n     *                   a callback made when a timeline is ended, will only be called if\n     *                   isEndOfTimeline is true\n     * @param {Function} dataFn - a callback that is executed when segment bytes are available\n     *                            and ready to use\n     * @param {Function} doneFn - a callback that is executed after decryption has completed\n     */\n\n    const decryptSegment = ({\n                                decryptionWorker,\n                                segment,\n                                trackInfoFn,\n                                timingInfoFn,\n                                videoSegmentTimingInfoFn,\n                                audioSegmentTimingInfoFn,\n                                id3Fn,\n                                captionsFn,\n                                isEndOfTimeline,\n                                endedTimelineFn,\n                                dataFn,\n                                doneFn,\n                                onTransmuxerLog\n                            }) => {\n        decrypt({\n            id: segment.requestId,\n            key: segment.key,\n            encryptedBytes: segment.encryptedBytes,\n            decryptionWorker\n        }, decryptedBytes => {\n            segment.bytes = decryptedBytes;\n            handleSegmentBytes({\n                segment,\n                bytes: segment.bytes,\n                trackInfoFn,\n                timingInfoFn,\n                videoSegmentTimingInfoFn,\n                audioSegmentTimingInfoFn,\n                id3Fn,\n                captionsFn,\n                isEndOfTimeline,\n                endedTimelineFn,\n                dataFn,\n                doneFn,\n                onTransmuxerLog\n            });\n        });\n    };\n    /**\n     * This function waits for all XHRs to finish (with either success or failure)\n     * before continueing processing via it's callback. The function gathers errors\n     * from each request into a single errors array so that the error status for\n     * each request can be examined later.\n     *\n     * @param {Object} activeXhrs - an object that tracks all XHR requests\n     * @param {WebWorker} decryptionWorker - a WebWorker interface to AES-128 decryption\n     *                                       routines\n     * @param {Function} trackInfoFn - a callback that receives track info\n     * @param {Function} timingInfoFn - a callback that receives timing info\n     * @param {Function} videoSegmentTimingInfoFn\n     *                   a callback that receives video timing info based on media times and\n     *                   any adjustments made by the transmuxer\n     * @param {Function} audioSegmentTimingInfoFn\n     *                   a callback that receives audio timing info based on media times and\n     *                   any adjustments made by the transmuxer\n     * @param {Function} id3Fn - a callback that receives ID3 metadata\n     * @param {Function} captionsFn - a callback that receives captions\n     * @param {boolean}  isEndOfTimeline\n     *                   true if this segment represents the last segment in a timeline\n     * @param {Function} endedTimelineFn\n     *                   a callback made when a timeline is ended, will only be called if\n     *                   isEndOfTimeline is true\n     * @param {Function} dataFn - a callback that is executed when segment bytes are available\n     *                            and ready to use\n     * @param {Function} doneFn - a callback that is executed after all resources have been\n     *                            downloaded and any decryption completed\n     */\n\n    const waitForCompletion = ({\n                                   activeXhrs,\n                                   decryptionWorker,\n                                   trackInfoFn,\n                                   timingInfoFn,\n                                   videoSegmentTimingInfoFn,\n                                   audioSegmentTimingInfoFn,\n                                   id3Fn,\n                                   captionsFn,\n                                   isEndOfTimeline,\n                                   endedTimelineFn,\n                                   dataFn,\n                                   doneFn,\n                                   onTransmuxerLog\n                               }) => {\n        let count = 0;\n        let didError = false;\n        return (error, segment) => {\n            if (didError) {\n                return;\n            }\n            if (error) {\n                didError = true; // If there are errors, we have to abort any outstanding requests\n\n                abortAll(activeXhrs); // Even though the requests above are aborted, and in theory we could wait until we\n                // handle the aborted events from those requests, there are some cases where we may\n                // never get an aborted event. For instance, if the network connection is lost and\n                // there were two requests, the first may have triggered an error immediately, while\n                // the second request remains unsent. In that case, the aborted algorithm will not\n                // trigger an abort: see https://xhr.spec.whatwg.org/#the-abort()-method\n                //\n                // We also can't rely on the ready state of the XHR, since the request that\n                // triggered the connection error may also show as a ready state of 0 (unsent).\n                // Therefore, we have to finish this group of requests immediately after the first\n                // seen error.\n\n                return doneFn(error, segment);\n            }\n            count += 1;\n            if (count === activeXhrs.length) {\n                const segmentFinish = function () {\n                    if (segment.encryptedBytes) {\n                        return decryptSegment({\n                            decryptionWorker,\n                            segment,\n                            trackInfoFn,\n                            timingInfoFn,\n                            videoSegmentTimingInfoFn,\n                            audioSegmentTimingInfoFn,\n                            id3Fn,\n                            captionsFn,\n                            isEndOfTimeline,\n                            endedTimelineFn,\n                            dataFn,\n                            doneFn,\n                            onTransmuxerLog\n                        });\n                    } // Otherwise, everything is ready just continue\n\n                    handleSegmentBytes({\n                        segment,\n                        bytes: segment.bytes,\n                        trackInfoFn,\n                        timingInfoFn,\n                        videoSegmentTimingInfoFn,\n                        audioSegmentTimingInfoFn,\n                        id3Fn,\n                        captionsFn,\n                        isEndOfTimeline,\n                        endedTimelineFn,\n                        dataFn,\n                        doneFn,\n                        onTransmuxerLog\n                    });\n                }; // Keep track of when *all* of the requests have completed\n\n                segment.endOfAllRequests = Date.now();\n                if (segment.map && segment.map.encryptedBytes && !segment.map.bytes) {\n                    return decrypt({\n                        decryptionWorker,\n                        // add -init to the \"id\" to differentiate between segment\n                        // and init segment decryption, just in case they happen\n                        // at the same time at some point in the future.\n                        id: segment.requestId + '-init',\n                        encryptedBytes: segment.map.encryptedBytes,\n                        key: segment.map.key\n                    }, decryptedBytes => {\n                        segment.map.bytes = decryptedBytes;\n                        parseInitSegment(segment, parseError => {\n                            if (parseError) {\n                                abortAll(activeXhrs);\n                                return doneFn(parseError, segment);\n                            }\n                            segmentFinish();\n                        });\n                    });\n                }\n                segmentFinish();\n            }\n        };\n    };\n    /**\n     * Calls the abort callback if any request within the batch was aborted. Will only call\n     * the callback once per batch of requests, even if multiple were aborted.\n     *\n     * @param {Object} loadendState - state to check to see if the abort function was called\n     * @param {Function} abortFn - callback to call for abort\n     */\n\n    const handleLoadEnd = ({\n                               loadendState,\n                               abortFn\n                           }) => event => {\n        const request = event.target;\n        if (request.aborted && abortFn && !loadendState.calledAbortFn) {\n            abortFn();\n            loadendState.calledAbortFn = true;\n        }\n    };\n    /**\n     * Simple progress event callback handler that gathers some stats before\n     * executing a provided callback with the `segment` object\n     *\n     * @param {Object} segment - a simplified copy of the segmentInfo object\n     *                           from SegmentLoader\n     * @param {Function} progressFn - a callback that is executed each time a progress event\n     *                                is received\n     * @param {Function} trackInfoFn - a callback that receives track info\n     * @param {Function} timingInfoFn - a callback that receives timing info\n     * @param {Function} videoSegmentTimingInfoFn\n     *                   a callback that receives video timing info based on media times and\n     *                   any adjustments made by the transmuxer\n     * @param {Function} audioSegmentTimingInfoFn\n     *                   a callback that receives audio timing info based on media times and\n     *                   any adjustments made by the transmuxer\n     * @param {boolean}  isEndOfTimeline\n     *                   true if this segment represents the last segment in a timeline\n     * @param {Function} endedTimelineFn\n     *                   a callback made when a timeline is ended, will only be called if\n     *                   isEndOfTimeline is true\n     * @param {Function} dataFn - a callback that is executed when segment bytes are available\n     *                            and ready to use\n     * @param {Event} event - the progress event object from XMLHttpRequest\n     */\n\n    const handleProgress = ({\n                                segment,\n                                progressFn,\n                                trackInfoFn,\n                                timingInfoFn,\n                                videoSegmentTimingInfoFn,\n                                audioSegmentTimingInfoFn,\n                                id3Fn,\n                                captionsFn,\n                                isEndOfTimeline,\n                                endedTimelineFn,\n                                dataFn\n                            }) => event => {\n        const request = event.target;\n        if (request.aborted) {\n            return;\n        }\n        segment.stats = merge(segment.stats, getProgressStats(event)); // record the time that we receive the first byte of data\n\n        if (!segment.stats.firstBytesReceivedAt && segment.stats.bytesReceived) {\n            segment.stats.firstBytesReceivedAt = Date.now();\n        }\n        return progressFn(event, segment);\n    };\n    /**\n     * Load all resources and does any processing necessary for a media-segment\n     *\n     * Features:\n     *   decrypts the media-segment if it has a key uri and an iv\n     *   aborts *all* requests if *any* one request fails\n     *\n     * The segment object, at minimum, has the following format:\n     * {\n     *   resolvedUri: String,\n     *   [transmuxer]: Object,\n     *   [byterange]: {\n     *     offset: Number,\n     *     length: Number\n     *   },\n     *   [key]: {\n     *     resolvedUri: String\n     *     [byterange]: {\n     *       offset: Number,\n     *       length: Number\n     *     },\n     *     iv: {\n     *       bytes: Uint32Array\n     *     }\n     *   },\n     *   [map]: {\n     *     resolvedUri: String,\n     *     [byterange]: {\n     *       offset: Number,\n     *       length: Number\n     *     },\n     *     [bytes]: Uint8Array\n     *   }\n     * }\n     * ...where [name] denotes optional properties\n     *\n     * @param {Function} xhr - an instance of the xhr wrapper in xhr.js\n     * @param {Object} xhrOptions - the base options to provide to all xhr requests\n     * @param {WebWorker} decryptionWorker - a WebWorker interface to AES-128\n     *                                       decryption routines\n     * @param {Object} segment - a simplified copy of the segmentInfo object\n     *                           from SegmentLoader\n     * @param {Function} abortFn - a callback called (only once) if any piece of a request was\n     *                             aborted\n     * @param {Function} progressFn - a callback that receives progress events from the main\n     *                                segment's xhr request\n     * @param {Function} trackInfoFn - a callback that receives track info\n     * @param {Function} timingInfoFn - a callback that receives timing info\n     * @param {Function} videoSegmentTimingInfoFn\n     *                   a callback that receives video timing info based on media times and\n     *                   any adjustments made by the transmuxer\n     * @param {Function} audioSegmentTimingInfoFn\n     *                   a callback that receives audio timing info based on media times and\n     *                   any adjustments made by the transmuxer\n     * @param {Function} id3Fn - a callback that receives ID3 metadata\n     * @param {Function} captionsFn - a callback that receives captions\n     * @param {boolean}  isEndOfTimeline\n     *                   true if this segment represents the last segment in a timeline\n     * @param {Function} endedTimelineFn\n     *                   a callback made when a timeline is ended, will only be called if\n     *                   isEndOfTimeline is true\n     * @param {Function} dataFn - a callback that receives data from the main segment's xhr\n     *                            request, transmuxed if needed\n     * @param {Function} doneFn - a callback that is executed only once all requests have\n     *                            succeeded or failed\n     * @return {Function} a function that, when invoked, immediately aborts all\n     *                     outstanding requests\n     */\n\n    const mediaSegmentRequest = ({\n                                     xhr,\n                                     xhrOptions,\n                                     decryptionWorker,\n                                     segment,\n                                     abortFn,\n                                     progressFn,\n                                     trackInfoFn,\n                                     timingInfoFn,\n                                     videoSegmentTimingInfoFn,\n                                     audioSegmentTimingInfoFn,\n                                     id3Fn,\n                                     captionsFn,\n                                     isEndOfTimeline,\n                                     endedTimelineFn,\n                                     dataFn,\n                                     doneFn,\n                                     onTransmuxerLog\n                                 }) => {\n        const activeXhrs = [];\n        const finishProcessingFn = waitForCompletion({\n            activeXhrs,\n            decryptionWorker,\n            trackInfoFn,\n            timingInfoFn,\n            videoSegmentTimingInfoFn,\n            audioSegmentTimingInfoFn,\n            id3Fn,\n            captionsFn,\n            isEndOfTimeline,\n            endedTimelineFn,\n            dataFn,\n            doneFn,\n            onTransmuxerLog\n        }); // optionally, request the decryption key\n\n        if (segment.key && !segment.key.bytes) {\n            const objects = [segment.key];\n            if (segment.map && !segment.map.bytes && segment.map.key && segment.map.key.resolvedUri === segment.key.resolvedUri) {\n                objects.push(segment.map.key);\n            }\n            const keyRequestOptions = merge(xhrOptions, {\n                uri: segment.key.resolvedUri,\n                responseType: 'arraybuffer'\n            });\n            const keyRequestCallback = handleKeyResponse(segment, objects, finishProcessingFn);\n            const keyXhr = xhr(keyRequestOptions, keyRequestCallback);\n            activeXhrs.push(keyXhr);\n        } // optionally, request the associated media init segment\n\n        if (segment.map && !segment.map.bytes) {\n            const differentMapKey = segment.map.key && (!segment.key || segment.key.resolvedUri !== segment.map.key.resolvedUri);\n            if (differentMapKey) {\n                const mapKeyRequestOptions = merge(xhrOptions, {\n                    uri: segment.map.key.resolvedUri,\n                    responseType: 'arraybuffer'\n                });\n                const mapKeyRequestCallback = handleKeyResponse(segment, [segment.map.key], finishProcessingFn);\n                const mapKeyXhr = xhr(mapKeyRequestOptions, mapKeyRequestCallback);\n                activeXhrs.push(mapKeyXhr);\n            }\n            const initSegmentOptions = merge(xhrOptions, {\n                uri: segment.map.resolvedUri,\n                responseType: 'arraybuffer',\n                headers: segmentXhrHeaders(segment.map)\n            });\n            const initSegmentRequestCallback = handleInitSegmentResponse({\n                segment,\n                finishProcessingFn\n            });\n            const initSegmentXhr = xhr(initSegmentOptions, initSegmentRequestCallback);\n            activeXhrs.push(initSegmentXhr);\n        }\n        const segmentRequestOptions = merge(xhrOptions, {\n            uri: segment.part && segment.part.resolvedUri || segment.resolvedUri,\n            responseType: 'arraybuffer',\n            headers: segmentXhrHeaders(segment)\n        });\n        const segmentRequestCallback = handleSegmentResponse({\n            segment,\n            finishProcessingFn,\n            responseType: segmentRequestOptions.responseType\n        });\n        const segmentXhr = xhr(segmentRequestOptions, segmentRequestCallback);\n        segmentXhr.addEventListener('progress', handleProgress({\n            segment,\n            progressFn,\n            trackInfoFn,\n            timingInfoFn,\n            videoSegmentTimingInfoFn,\n            audioSegmentTimingInfoFn,\n            id3Fn,\n            captionsFn,\n            isEndOfTimeline,\n            endedTimelineFn,\n            dataFn\n        }));\n        activeXhrs.push(segmentXhr); // since all parts of the request must be considered, but should not make callbacks\n        // multiple times, provide a shared state object\n\n        const loadendState = {};\n        activeXhrs.forEach(activeXhr => {\n            activeXhr.addEventListener('loadend', handleLoadEnd({\n                loadendState,\n                abortFn\n            }));\n        });\n        return () => abortAll(activeXhrs);\n    };\n\n    /**\n     * @file - codecs.js - Handles tasks regarding codec strings such as translating them to\n     * codec strings, or translating codec strings into objects that can be examined.\n     */\n    const logFn$1 = logger('CodecUtils');\n    /**\n     * Returns a set of codec strings parsed from the playlist or the default\n     * codec strings if no codecs were specified in the playlist\n     *\n     * @param {Playlist} media the current media playlist\n     * @return {Object} an object with the video and audio codecs\n     */\n\n    const getCodecs = function (media) {\n        // if the codecs were explicitly specified, use them instead of the\n        // defaults\n        const mediaAttributes = media.attributes || {};\n        if (mediaAttributes.CODECS) {\n            return parseCodecs(mediaAttributes.CODECS);\n        }\n    };\n    const isMaat = (main, media) => {\n        const mediaAttributes = media.attributes || {};\n        return main && main.mediaGroups && main.mediaGroups.AUDIO && mediaAttributes.AUDIO && main.mediaGroups.AUDIO[mediaAttributes.AUDIO];\n    };\n    const isMuxed = (main, media) => {\n        if (!isMaat(main, media)) {\n            return true;\n        }\n        const mediaAttributes = media.attributes || {};\n        const audioGroup = main.mediaGroups.AUDIO[mediaAttributes.AUDIO];\n        for (const groupId in audioGroup) {\n            // If an audio group has a URI (the case for HLS, as HLS will use external playlists),\n            // or there are listed playlists (the case for DASH, as the manifest will have already\n            // provided all of the details necessary to generate the audio playlist, as opposed to\n            // HLS' externally requested playlists), then the content is demuxed.\n            if (!audioGroup[groupId].uri && !audioGroup[groupId].playlists) {\n                return true;\n            }\n        }\n        return false;\n    };\n    const unwrapCodecList = function (codecList) {\n        const codecs = {};\n        codecList.forEach(({\n                               mediaType,\n                               type,\n                               details\n                           }) => {\n            codecs[mediaType] = codecs[mediaType] || [];\n            codecs[mediaType].push(translateLegacyCodec(`${type}${details}`));\n        });\n        Object.keys(codecs).forEach(function (mediaType) {\n            if (codecs[mediaType].length > 1) {\n                logFn$1(`multiple ${mediaType} codecs found as attributes: ${codecs[mediaType].join(', ')}. Setting playlist codecs to null so that we wait for mux.js to probe segments for real codecs.`);\n                codecs[mediaType] = null;\n                return;\n            }\n            codecs[mediaType] = codecs[mediaType][0];\n        });\n        return codecs;\n    };\n    const codecCount = function (codecObj) {\n        let count = 0;\n        if (codecObj.audio) {\n            count++;\n        }\n        if (codecObj.video) {\n            count++;\n        }\n        return count;\n    };\n    /**\n     * Calculates the codec strings for a working configuration of\n     * SourceBuffers to play variant streams in a main playlist. If\n     * there is no possible working configuration, an empty object will be\n     * returned.\n     *\n     * @param main {Object} the m3u8 object for the main playlist\n     * @param media {Object} the m3u8 object for the variant playlist\n     * @return {Object} the codec strings.\n     *\n     * @private\n     */\n\n    const codecsForPlaylist = function (main, media) {\n        const mediaAttributes = media.attributes || {};\n        const codecInfo = unwrapCodecList(getCodecs(media) || []); // HLS with multiple-audio tracks must always get an audio codec.\n        // Put another way, there is no way to have a video-only multiple-audio HLS!\n\n        if (isMaat(main, media) && !codecInfo.audio) {\n            if (!isMuxed(main, media)) {\n                // It is possible for codecs to be specified on the audio media group playlist but\n                // not on the rendition playlist. This is mostly the case for DASH, where audio and\n                // video are always separate (and separately specified).\n                const defaultCodecs = unwrapCodecList(codecsFromDefault(main, mediaAttributes.AUDIO) || []);\n                if (defaultCodecs.audio) {\n                    codecInfo.audio = defaultCodecs.audio;\n                }\n            }\n        }\n        return codecInfo;\n    };\n    const logFn = logger('PlaylistSelector');\n    const representationToString = function (representation) {\n        if (!representation || !representation.playlist) {\n            return;\n        }\n        const playlist = representation.playlist;\n        return JSON.stringify({\n            id: playlist.id,\n            bandwidth: representation.bandwidth,\n            width: representation.width,\n            height: representation.height,\n            codecs: playlist.attributes && playlist.attributes.CODECS || ''\n        });\n    }; // Utilities\n\n    /**\n     * Returns the CSS value for the specified property on an element\n     * using `getComputedStyle`. Firefox has a long-standing issue where\n     * getComputedStyle() may return null when running in an iframe with\n     * `display: none`.\n     *\n     * @see https://bugzilla.mozilla.org/show_bug.cgi?id=548397\n     * @param {HTMLElement} el the htmlelement to work on\n     * @param {string} the proprety to get the style for\n     */\n\n    const safeGetComputedStyle = function (el, property) {\n        if (!el) {\n            return '';\n        }\n        const result = window.getComputedStyle(el);\n        if (!result) {\n            return '';\n        }\n        return result[property];\n    };\n    /**\n     * Resuable stable sort function\n     *\n     * @param {Playlists} array\n     * @param {Function} sortFn Different comparators\n     * @function stableSort\n     */\n\n    const stableSort = function (array, sortFn) {\n        const newArray = array.slice();\n        array.sort(function (left, right) {\n            const cmp = sortFn(left, right);\n            if (cmp === 0) {\n                return newArray.indexOf(left) - newArray.indexOf(right);\n            }\n            return cmp;\n        });\n    };\n    /**\n     * A comparator function to sort two playlist object by bandwidth.\n     *\n     * @param {Object} left a media playlist object\n     * @param {Object} right a media playlist object\n     * @return {number} Greater than zero if the bandwidth attribute of\n     * left is greater than the corresponding attribute of right. Less\n     * than zero if the bandwidth of right is greater than left and\n     * exactly zero if the two are equal.\n     */\n\n    const comparePlaylistBandwidth = function (left, right) {\n        let leftBandwidth;\n        let rightBandwidth;\n        if (left.attributes.BANDWIDTH) {\n            leftBandwidth = left.attributes.BANDWIDTH;\n        }\n        leftBandwidth = leftBandwidth || window.Number.MAX_VALUE;\n        if (right.attributes.BANDWIDTH) {\n            rightBandwidth = right.attributes.BANDWIDTH;\n        }\n        rightBandwidth = rightBandwidth || window.Number.MAX_VALUE;\n        return leftBandwidth - rightBandwidth;\n    };\n    /**\n     * A comparator function to sort two playlist object by resolution (width).\n     *\n     * @param {Object} left a media playlist object\n     * @param {Object} right a media playlist object\n     * @return {number} Greater than zero if the resolution.width attribute of\n     * left is greater than the corresponding attribute of right. Less\n     * than zero if the resolution.width of right is greater than left and\n     * exactly zero if the two are equal.\n     */\n\n    const comparePlaylistResolution = function (left, right) {\n        let leftWidth;\n        let rightWidth;\n        if (left.attributes.RESOLUTION && left.attributes.RESOLUTION.width) {\n            leftWidth = left.attributes.RESOLUTION.width;\n        }\n        leftWidth = leftWidth || window.Number.MAX_VALUE;\n        if (right.attributes.RESOLUTION && right.attributes.RESOLUTION.width) {\n            rightWidth = right.attributes.RESOLUTION.width;\n        }\n        rightWidth = rightWidth || window.Number.MAX_VALUE; // NOTE - Fallback to bandwidth sort as appropriate in cases where multiple renditions\n        // have the same media dimensions/ resolution\n\n        if (leftWidth === rightWidth && left.attributes.BANDWIDTH && right.attributes.BANDWIDTH) {\n            return left.attributes.BANDWIDTH - right.attributes.BANDWIDTH;\n        }\n        return leftWidth - rightWidth;\n    };\n    /**\n     * Chooses the appropriate media playlist based on bandwidth and player size\n     *\n     * @param {Object} main\n     *        Object representation of the main manifest\n     * @param {number} playerBandwidth\n     *        Current calculated bandwidth of the player\n     * @param {number} playerWidth\n     *        Current width of the player element (should account for the device pixel ratio)\n     * @param {number} playerHeight\n     *        Current height of the player element (should account for the device pixel ratio)\n     * @param {boolean} limitRenditionByPlayerDimensions\n     *        True if the player width and height should be used during the selection, false otherwise\n     * @param {Object} playlistController\n     *        the current playlistController object\n     * @return {Playlist} the highest bitrate playlist less than the\n     * currently detected bandwidth, accounting for some amount of\n     * bandwidth variance\n     */\n\n    let simpleSelector = function (main, playerBandwidth, playerWidth, playerHeight, limitRenditionByPlayerDimensions, playlistController) {\n        // If we end up getting called before `main` is available, exit early\n        if (!main) {\n            return;\n        }\n        const options = {\n            bandwidth: playerBandwidth,\n            width: playerWidth,\n            height: playerHeight,\n            limitRenditionByPlayerDimensions\n        };\n        let playlists = main.playlists; // if playlist is audio only, select between currently active audio group playlists.\n\n        if (Playlist.isAudioOnly(main)) {\n            playlists = playlistController.getAudioTrackPlaylists_(); // add audioOnly to options so that we log audioOnly: true\n            // at the buttom of this function for debugging.\n\n            options.audioOnly = true;\n        } // convert the playlists to an intermediary representation to make comparisons easier\n\n        let sortedPlaylistReps = playlists.map(playlist => {\n            let bandwidth;\n            const width = playlist.attributes && playlist.attributes.RESOLUTION && playlist.attributes.RESOLUTION.width;\n            const height = playlist.attributes && playlist.attributes.RESOLUTION && playlist.attributes.RESOLUTION.height;\n            bandwidth = playlist.attributes && playlist.attributes.BANDWIDTH;\n            bandwidth = bandwidth || window.Number.MAX_VALUE;\n            return {\n                bandwidth,\n                width,\n                height,\n                playlist\n            };\n        });\n        stableSort(sortedPlaylistReps, (left, right) => left.bandwidth - right.bandwidth); // filter out any playlists that have been excluded due to\n        // incompatible configurations\n\n        sortedPlaylistReps = sortedPlaylistReps.filter(rep => !Playlist.isIncompatible(rep.playlist)); // filter out any playlists that have been disabled manually through the representations\n        // api or excluded temporarily due to playback errors.\n\n        let enabledPlaylistReps = sortedPlaylistReps.filter(rep => Playlist.isEnabled(rep.playlist));\n        if (!enabledPlaylistReps.length) {\n            // if there are no enabled playlists, then they have all been excluded or disabled\n            // by the user through the representations api. In this case, ignore exclusion and\n            // fallback to what the user wants by using playlists the user has not disabled.\n            enabledPlaylistReps = sortedPlaylistReps.filter(rep => !Playlist.isDisabled(rep.playlist));\n        } // filter out any variant that has greater effective bitrate\n        // than the current estimated bandwidth\n\n        const bandwidthPlaylistReps = enabledPlaylistReps.filter(rep => rep.bandwidth * Config.BANDWIDTH_VARIANCE < playerBandwidth);\n        let highestRemainingBandwidthRep = bandwidthPlaylistReps[bandwidthPlaylistReps.length - 1]; // get all of the renditions with the same (highest) bandwidth\n        // and then taking the very first element\n\n        const bandwidthBestRep = bandwidthPlaylistReps.filter(rep => rep.bandwidth === highestRemainingBandwidthRep.bandwidth)[0]; // if we're not going to limit renditions by player size, make an early decision.\n\n        if (limitRenditionByPlayerDimensions === false) {\n            const chosenRep = bandwidthBestRep || enabledPlaylistReps[0] || sortedPlaylistReps[0];\n            if (chosenRep && chosenRep.playlist) {\n                let type = 'sortedPlaylistReps';\n                if (bandwidthBestRep) {\n                    type = 'bandwidthBestRep';\n                }\n                if (enabledPlaylistReps[0]) {\n                    type = 'enabledPlaylistReps';\n                }\n                logFn(`choosing ${representationToString(chosenRep)} using ${type} with options`, options);\n                return chosenRep.playlist;\n            }\n            logFn('could not choose a playlist with options', options);\n            return null;\n        } // filter out playlists without resolution information\n\n        const haveResolution = bandwidthPlaylistReps.filter(rep => rep.width && rep.height); // sort variants by resolution\n\n        stableSort(haveResolution, (left, right) => left.width - right.width); // if we have the exact resolution as the player use it\n\n        const resolutionBestRepList = haveResolution.filter(rep => rep.width === playerWidth && rep.height === playerHeight);\n        highestRemainingBandwidthRep = resolutionBestRepList[resolutionBestRepList.length - 1]; // ensure that we pick the highest bandwidth variant that have exact resolution\n\n        const resolutionBestRep = resolutionBestRepList.filter(rep => rep.bandwidth === highestRemainingBandwidthRep.bandwidth)[0];\n        let resolutionPlusOneList;\n        let resolutionPlusOneSmallest;\n        let resolutionPlusOneRep; // find the smallest variant that is larger than the player\n        // if there is no match of exact resolution\n\n        if (!resolutionBestRep) {\n            resolutionPlusOneList = haveResolution.filter(rep => rep.width > playerWidth || rep.height > playerHeight); // find all the variants have the same smallest resolution\n\n            resolutionPlusOneSmallest = resolutionPlusOneList.filter(rep => rep.width === resolutionPlusOneList[0].width && rep.height === resolutionPlusOneList[0].height); // ensure that we also pick the highest bandwidth variant that\n            // is just-larger-than the video player\n\n            highestRemainingBandwidthRep = resolutionPlusOneSmallest[resolutionPlusOneSmallest.length - 1];\n            resolutionPlusOneRep = resolutionPlusOneSmallest.filter(rep => rep.bandwidth === highestRemainingBandwidthRep.bandwidth)[0];\n        }\n        let leastPixelDiffRep; // If this selector proves to be better than others,\n        // resolutionPlusOneRep and resolutionBestRep and all\n        // the code involving them should be removed.\n\n        if (playlistController.leastPixelDiffSelector) {\n            // find the variant that is closest to the player's pixel size\n            const leastPixelDiffList = haveResolution.map(rep => {\n                rep.pixelDiff = Math.abs(rep.width - playerWidth) + Math.abs(rep.height - playerHeight);\n                return rep;\n            }); // get the highest bandwidth, closest resolution playlist\n\n            stableSort(leastPixelDiffList, (left, right) => {\n                // sort by highest bandwidth if pixelDiff is the same\n                if (left.pixelDiff === right.pixelDiff) {\n                    return right.bandwidth - left.bandwidth;\n                }\n                return left.pixelDiff - right.pixelDiff;\n            });\n            leastPixelDiffRep = leastPixelDiffList[0];\n        } // fallback chain of variants\n\n        const chosenRep = leastPixelDiffRep || resolutionPlusOneRep || resolutionBestRep || bandwidthBestRep || enabledPlaylistReps[0] || sortedPlaylistReps[0];\n        if (chosenRep && chosenRep.playlist) {\n            let type = 'sortedPlaylistReps';\n            if (leastPixelDiffRep) {\n                type = 'leastPixelDiffRep';\n            } else if (resolutionPlusOneRep) {\n                type = 'resolutionPlusOneRep';\n            } else if (resolutionBestRep) {\n                type = 'resolutionBestRep';\n            } else if (bandwidthBestRep) {\n                type = 'bandwidthBestRep';\n            } else if (enabledPlaylistReps[0]) {\n                type = 'enabledPlaylistReps';\n            }\n            logFn(`choosing ${representationToString(chosenRep)} using ${type} with options`, options);\n            return chosenRep.playlist;\n        }\n        logFn('could not choose a playlist with options', options);\n        return null;\n    };\n\n    /**\n     * Chooses the appropriate media playlist based on the most recent\n     * bandwidth estimate and the player size.\n     *\n     * Expects to be called within the context of an instance of VhsHandler\n     *\n     * @return {Playlist} the highest bitrate playlist less than the\n     * currently detected bandwidth, accounting for some amount of\n     * bandwidth variance\n     */\n\n    const lastBandwidthSelector = function () {\n        const pixelRatio = this.useDevicePixelRatio ? window.devicePixelRatio || 1 : 1;\n        return simpleSelector(this.playlists.main, this.systemBandwidth, parseInt(safeGetComputedStyle(this.tech_.el(), 'width'), 10) * pixelRatio, parseInt(safeGetComputedStyle(this.tech_.el(), 'height'), 10) * pixelRatio, this.limitRenditionByPlayerDimensions, this.playlistController_);\n    };\n    /**\n     * Chooses the appropriate media playlist based on an\n     * exponential-weighted moving average of the bandwidth after\n     * filtering for player size.\n     *\n     * Expects to be called within the context of an instance of VhsHandler\n     *\n     * @param {number} decay - a number between 0 and 1. Higher values of\n     * this parameter will cause previous bandwidth estimates to lose\n     * significance more quickly.\n     * @return {Function} a function which can be invoked to create a new\n     * playlist selector function.\n     * @see https://en.wikipedia.org/wiki/Moving_average#Exponential_moving_average\n     */\n\n    const movingAverageBandwidthSelector = function (decay) {\n        let average = -1;\n        let lastSystemBandwidth = -1;\n        if (decay < 0 || decay > 1) {\n            throw new Error('Moving average bandwidth decay must be between 0 and 1.');\n        }\n        return function () {\n            const pixelRatio = this.useDevicePixelRatio ? window.devicePixelRatio || 1 : 1;\n            if (average < 0) {\n                average = this.systemBandwidth;\n                lastSystemBandwidth = this.systemBandwidth;\n            } // stop the average value from decaying for every 250ms\n            // when the systemBandwidth is constant\n            // and\n            // stop average from setting to a very low value when the\n            // systemBandwidth becomes 0 in case of chunk cancellation\n\n            if (this.systemBandwidth > 0 && this.systemBandwidth !== lastSystemBandwidth) {\n                average = decay * this.systemBandwidth + (1 - decay) * average;\n                lastSystemBandwidth = this.systemBandwidth;\n            }\n            return simpleSelector(this.playlists.main, average, parseInt(safeGetComputedStyle(this.tech_.el(), 'width'), 10) * pixelRatio, parseInt(safeGetComputedStyle(this.tech_.el(), 'height'), 10) * pixelRatio, this.limitRenditionByPlayerDimensions, this.playlistController_);\n        };\n    };\n    /**\n     * Chooses the appropriate media playlist based on the potential to rebuffer\n     *\n     * @param {Object} settings\n     *        Object of information required to use this selector\n     * @param {Object} settings.main\n     *        Object representation of the main manifest\n     * @param {number} settings.currentTime\n     *        The current time of the player\n     * @param {number} settings.bandwidth\n     *        Current measured bandwidth\n     * @param {number} settings.duration\n     *        Duration of the media\n     * @param {number} settings.segmentDuration\n     *        Segment duration to be used in round trip time calculations\n     * @param {number} settings.timeUntilRebuffer\n     *        Time left in seconds until the player has to rebuffer\n     * @param {number} settings.currentTimeline\n     *        The current timeline segments are being loaded from\n     * @param {SyncController} settings.syncController\n     *        SyncController for determining if we have a sync point for a given playlist\n     * @return {Object|null}\n     *         {Object} return.playlist\n     *         The highest bandwidth playlist with the least amount of rebuffering\n     *         {Number} return.rebufferingImpact\n     *         The amount of time in seconds switching to this playlist will rebuffer. A\n     *         negative value means that switching will cause zero rebuffering.\n     */\n\n    const minRebufferMaxBandwidthSelector = function (settings) {\n        const {\n            main,\n            currentTime,\n            bandwidth,\n            duration,\n            segmentDuration,\n            timeUntilRebuffer,\n            currentTimeline,\n            syncController\n        } = settings; // filter out any playlists that have been excluded due to\n        // incompatible configurations\n\n        const compatiblePlaylists = main.playlists.filter(playlist => !Playlist.isIncompatible(playlist)); // filter out any playlists that have been disabled manually through the representations\n        // api or excluded temporarily due to playback errors.\n\n        let enabledPlaylists = compatiblePlaylists.filter(Playlist.isEnabled);\n        if (!enabledPlaylists.length) {\n            // if there are no enabled playlists, then they have all been excluded or disabled\n            // by the user through the representations api. In this case, ignore exclusion and\n            // fallback to what the user wants by using playlists the user has not disabled.\n            enabledPlaylists = compatiblePlaylists.filter(playlist => !Playlist.isDisabled(playlist));\n        }\n        const bandwidthPlaylists = enabledPlaylists.filter(Playlist.hasAttribute.bind(null, 'BANDWIDTH'));\n        const rebufferingEstimates = bandwidthPlaylists.map(playlist => {\n            const syncPoint = syncController.getSyncPoint(playlist, duration, currentTimeline, currentTime); // If there is no sync point for this playlist, switching to it will require a\n            // sync request first. This will double the request time\n\n            const numRequests = syncPoint ? 1 : 2;\n            const requestTimeEstimate = Playlist.estimateSegmentRequestTime(segmentDuration, bandwidth, playlist);\n            const rebufferingImpact = requestTimeEstimate * numRequests - timeUntilRebuffer;\n            return {\n                playlist,\n                rebufferingImpact\n            };\n        });\n        const noRebufferingPlaylists = rebufferingEstimates.filter(estimate => estimate.rebufferingImpact <= 0); // Sort by bandwidth DESC\n\n        stableSort(noRebufferingPlaylists, (a, b) => comparePlaylistBandwidth(b.playlist, a.playlist));\n        if (noRebufferingPlaylists.length) {\n            return noRebufferingPlaylists[0];\n        }\n        stableSort(rebufferingEstimates, (a, b) => a.rebufferingImpact - b.rebufferingImpact);\n        return rebufferingEstimates[0] || null;\n    };\n    /**\n     * Chooses the appropriate media playlist, which in this case is the lowest bitrate\n     * one with video.  If no renditions with video exist, return the lowest audio rendition.\n     *\n     * Expects to be called within the context of an instance of VhsHandler\n     *\n     * @return {Object|null}\n     *         {Object} return.playlist\n     *         The lowest bitrate playlist that contains a video codec.  If no such rendition\n     *         exists pick the lowest audio rendition.\n     */\n\n    const lowestBitrateCompatibleVariantSelector = function () {\n        // filter out any playlists that have been excluded due to\n        // incompatible configurations or playback errors\n        const playlists = this.playlists.main.playlists.filter(Playlist.isEnabled); // Sort ascending by bitrate\n\n        stableSort(playlists, (a, b) => comparePlaylistBandwidth(a, b)); // Parse and assume that playlists with no video codec have no video\n        // (this is not necessarily true, although it is generally true).\n        //\n        // If an entire manifest has no valid videos everything will get filtered\n        // out.\n\n        const playlistsWithVideo = playlists.filter(playlist => !!codecsForPlaylist(this.playlists.main, playlist).video);\n        return playlistsWithVideo[0] || null;\n    };\n\n    /**\n     * Combine all segments into a single Uint8Array\n     *\n     * @param {Object} segmentObj\n     * @return {Uint8Array} concatenated bytes\n     * @private\n     */\n    const concatSegments = segmentObj => {\n        let offset = 0;\n        let tempBuffer;\n        if (segmentObj.bytes) {\n            tempBuffer = new Uint8Array(segmentObj.bytes); // combine the individual segments into one large typed-array\n\n            segmentObj.segments.forEach(segment => {\n                tempBuffer.set(segment, offset);\n                offset += segment.byteLength;\n            });\n        }\n        return tempBuffer;\n    };\n\n    /**\n     * @file text-tracks.js\n     */\n    /**\n     * Create captions text tracks on video.js if they do not exist\n     *\n     * @param {Object} inbandTextTracks a reference to current inbandTextTracks\n     * @param {Object} tech the video.js tech\n     * @param {Object} captionStream the caption stream to create\n     * @private\n     */\n\n    const createCaptionsTrackIfNotExists = function (inbandTextTracks, tech, captionStream) {\n        if (!inbandTextTracks[captionStream]) {\n            tech.trigger({\n                type: 'usage',\n                name: 'vhs-608'\n            });\n            let instreamId = captionStream; // we need to translate SERVICEn for 708 to how mux.js currently labels them\n\n            if (/^cc708_/.test(captionStream)) {\n                instreamId = 'SERVICE' + captionStream.split('_')[1];\n            }\n            const track = tech.textTracks().getTrackById(instreamId);\n            if (track) {\n                // Resuse an existing track with a CC# id because this was\n                // very likely created by videojs-contrib-hls from information\n                // in the m3u8 for us to use\n                inbandTextTracks[captionStream] = track;\n            } else {\n                // This section gets called when we have caption services that aren't specified in the manifest.\n                // Manifest level caption services are handled in media-groups.js under CLOSED-CAPTIONS.\n                const captionServices = tech.options_.vhs && tech.options_.vhs.captionServices || {};\n                let label = captionStream;\n                let language = captionStream;\n                let def = false;\n                const captionService = captionServices[instreamId];\n                if (captionService) {\n                    label = captionService.label;\n                    language = captionService.language;\n                    def = captionService.default;\n                } // Otherwise, create a track with the default `CC#` label and\n                // without a language\n\n                inbandTextTracks[captionStream] = tech.addRemoteTextTrack({\n                    kind: 'captions',\n                    id: instreamId,\n                    // TODO: investigate why this doesn't seem to turn the caption on by default\n                    default: def,\n                    label,\n                    language\n                }, false).track;\n            }\n        }\n    };\n    /**\n     * Add caption text track data to a source handler given an array of captions\n     *\n     * @param {Object}\n     *   @param {Object} inbandTextTracks the inband text tracks\n     *   @param {number} timestampOffset the timestamp offset of the source buffer\n     *   @param {Array} captionArray an array of caption data\n     * @private\n     */\n\n    const addCaptionData = function ({\n                                         inbandTextTracks,\n                                         captionArray,\n                                         timestampOffset\n                                     }) {\n        if (!captionArray) {\n            return;\n        }\n        const Cue = window.WebKitDataCue || window.VTTCue;\n        captionArray.forEach(caption => {\n            const track = caption.stream;\n            inbandTextTracks[track].addCue(new Cue(caption.startTime + timestampOffset, caption.endTime + timestampOffset, caption.text));\n        });\n    };\n    /**\n     * Define properties on a cue for backwards compatability,\n     * but warn the user that the way that they are using it\n     * is depricated and will be removed at a later date.\n     *\n     * @param {Cue} cue the cue to add the properties on\n     * @private\n     */\n\n    const deprecateOldCue = function (cue) {\n        Object.defineProperties(cue.frame, {\n            id: {\n                get() {\n                    videojs.log.warn('cue.frame.id is deprecated. Use cue.value.key instead.');\n                    return cue.value.key;\n                }\n            },\n            value: {\n                get() {\n                    videojs.log.warn('cue.frame.value is deprecated. Use cue.value.data instead.');\n                    return cue.value.data;\n                }\n            },\n            privateData: {\n                get() {\n                    videojs.log.warn('cue.frame.privateData is deprecated. Use cue.value.data instead.');\n                    return cue.value.data;\n                }\n            }\n        });\n    };\n    /**\n     * Add metadata text track data to a source handler given an array of metadata\n     *\n     * @param {Object}\n     *   @param {Object} inbandTextTracks the inband text tracks\n     *   @param {Array} metadataArray an array of meta data\n     *   @param {number} timestampOffset the timestamp offset of the source buffer\n     *   @param {number} videoDuration the duration of the video\n     * @private\n     */\n\n    const addMetadata = ({\n                             inbandTextTracks,\n                             metadataArray,\n                             timestampOffset,\n                             videoDuration\n                         }) => {\n        if (!metadataArray) {\n            return;\n        }\n        const Cue = window.WebKitDataCue || window.VTTCue;\n        const metadataTrack = inbandTextTracks.metadataTrack_;\n        if (!metadataTrack) {\n            return;\n        }\n        metadataArray.forEach(metadata => {\n            const time = metadata.cueTime + timestampOffset; // if time isn't a finite number between 0 and Infinity, like NaN,\n            // ignore this bit of metadata.\n            // This likely occurs when you have an non-timed ID3 tag like TIT2,\n            // which is the \"Title/Songname/Content description\" frame\n\n            if (typeof time !== 'number' || window.isNaN(time) || time < 0 || !(time < Infinity)) {\n                return;\n            }\n            metadata.frames.forEach(frame => {\n                const cue = new Cue(time, time, frame.value || frame.url || frame.data || '');\n                cue.frame = frame;\n                cue.value = frame;\n                deprecateOldCue(cue);\n                metadataTrack.addCue(cue);\n            });\n        });\n        if (!metadataTrack.cues || !metadataTrack.cues.length) {\n            return;\n        } // Updating the metadeta cues so that\n        // the endTime of each cue is the startTime of the next cue\n        // the endTime of last cue is the duration of the video\n\n        const cues = metadataTrack.cues;\n        const cuesArray = []; // Create a copy of the TextTrackCueList...\n        // ...disregarding cues with a falsey value\n\n        for (let i = 0; i < cues.length; i++) {\n            if (cues[i]) {\n                cuesArray.push(cues[i]);\n            }\n        } // Group cues by their startTime value\n\n        const cuesGroupedByStartTime = cuesArray.reduce((obj, cue) => {\n            const timeSlot = obj[cue.startTime] || [];\n            timeSlot.push(cue);\n            obj[cue.startTime] = timeSlot;\n            return obj;\n        }, {}); // Sort startTimes by ascending order\n\n        const sortedStartTimes = Object.keys(cuesGroupedByStartTime).sort((a, b) => Number(a) - Number(b)); // Map each cue group's endTime to the next group's startTime\n\n        sortedStartTimes.forEach((startTime, idx) => {\n            const cueGroup = cuesGroupedByStartTime[startTime];\n            const nextTime = Number(sortedStartTimes[idx + 1]) || videoDuration; // Map each cue's endTime the next group's startTime\n\n            cueGroup.forEach(cue => {\n                cue.endTime = nextTime;\n            });\n        });\n    };\n    /**\n     * Create metadata text track on video.js if it does not exist\n     *\n     * @param {Object} inbandTextTracks a reference to current inbandTextTracks\n     * @param {string} dispatchType the inband metadata track dispatch type\n     * @param {Object} tech the video.js tech\n     * @private\n     */\n\n    const createMetadataTrackIfNotExists = (inbandTextTracks, dispatchType, tech) => {\n        if (inbandTextTracks.metadataTrack_) {\n            return;\n        }\n        inbandTextTracks.metadataTrack_ = tech.addRemoteTextTrack({\n            kind: 'metadata',\n            label: 'Timed Metadata'\n        }, false).track;\n        inbandTextTracks.metadataTrack_.inBandMetadataTrackDispatchType = dispatchType;\n    };\n    /**\n     * Remove cues from a track on video.js.\n     *\n     * @param {Double} start start of where we should remove the cue\n     * @param {Double} end end of where the we should remove the cue\n     * @param {Object} track the text track to remove the cues from\n     * @private\n     */\n\n    const removeCuesFromTrack = function (start, end, track) {\n        let i;\n        let cue;\n        if (!track) {\n            return;\n        }\n        if (!track.cues) {\n            return;\n        }\n        i = track.cues.length;\n        while (i--) {\n            cue = track.cues[i]; // Remove any cue within the provided start and end time\n\n            if (cue.startTime >= start && cue.endTime <= end) {\n                track.removeCue(cue);\n            }\n        }\n    };\n    /**\n     * Remove duplicate cues from a track on video.js (a cue is considered a\n     * duplicate if it has the same time interval and text as another)\n     *\n     * @param {Object} track the text track to remove the duplicate cues from\n     * @private\n     */\n\n    const removeDuplicateCuesFromTrack = function (track) {\n        const cues = track.cues;\n        if (!cues) {\n            return;\n        }\n        for (let i = 0; i < cues.length; i++) {\n            const duplicates = [];\n            let occurrences = 0;\n            for (let j = 0; j < cues.length; j++) {\n                if (cues[i].startTime === cues[j].startTime && cues[i].endTime === cues[j].endTime && cues[i].text === cues[j].text) {\n                    occurrences++;\n                    if (occurrences > 1) {\n                        duplicates.push(cues[j]);\n                    }\n                }\n            }\n            if (duplicates.length) {\n                duplicates.forEach(dupe => track.removeCue(dupe));\n            }\n        }\n    };\n\n    /**\n     * Returns a list of gops in the buffer that have a pts value of 3 seconds or more in\n     * front of current time.\n     *\n     * @param {Array} buffer\n     *        The current buffer of gop information\n     * @param {number} currentTime\n     *        The current time\n     * @param {Double} mapping\n     *        Offset to map display time to stream presentation time\n     * @return {Array}\n     *         List of gops considered safe to append over\n     */\n\n    const gopsSafeToAlignWith = (buffer, currentTime, mapping) => {\n        if (typeof currentTime === 'undefined' || currentTime === null || !buffer.length) {\n            return [];\n        } // pts value for current time + 3 seconds to give a bit more wiggle room\n\n        const currentTimePts = Math.ceil((currentTime - mapping + 3) * clock_1);\n        let i;\n        for (i = 0; i < buffer.length; i++) {\n            if (buffer[i].pts > currentTimePts) {\n                break;\n            }\n        }\n        return buffer.slice(i);\n    };\n    /**\n     * Appends gop information (timing and byteLength) received by the transmuxer for the\n     * gops appended in the last call to appendBuffer\n     *\n     * @param {Array} buffer\n     *        The current buffer of gop information\n     * @param {Array} gops\n     *        List of new gop information\n     * @param {boolean} replace\n     *        If true, replace the buffer with the new gop information. If false, append the\n     *        new gop information to the buffer in the right location of time.\n     * @return {Array}\n     *         Updated list of gop information\n     */\n\n    const updateGopBuffer = (buffer, gops, replace) => {\n        if (!gops.length) {\n            return buffer;\n        }\n        if (replace) {\n            // If we are in safe append mode, then completely overwrite the gop buffer\n            // with the most recent appeneded data. This will make sure that when appending\n            // future segments, we only try to align with gops that are both ahead of current\n            // time and in the last segment appended.\n            return gops.slice();\n        }\n        const start = gops[0].pts;\n        let i = 0;\n        for (i; i < buffer.length; i++) {\n            if (buffer[i].pts >= start) {\n                break;\n            }\n        }\n        return buffer.slice(0, i).concat(gops);\n    };\n    /**\n     * Removes gop information in buffer that overlaps with provided start and end\n     *\n     * @param {Array} buffer\n     *        The current buffer of gop information\n     * @param {Double} start\n     *        position to start the remove at\n     * @param {Double} end\n     *        position to end the remove at\n     * @param {Double} mapping\n     *        Offset to map display time to stream presentation time\n     */\n\n    const removeGopBuffer = (buffer, start, end, mapping) => {\n        const startPts = Math.ceil((start - mapping) * clock_1);\n        const endPts = Math.ceil((end - mapping) * clock_1);\n        const updatedBuffer = buffer.slice();\n        let i = buffer.length;\n        while (i--) {\n            if (buffer[i].pts <= endPts) {\n                break;\n            }\n        }\n        if (i === -1) {\n            // no removal because end of remove range is before start of buffer\n            return updatedBuffer;\n        }\n        let j = i + 1;\n        while (j--) {\n            if (buffer[j].pts <= startPts) {\n                break;\n            }\n        } // clamp remove range start to 0 index\n\n        j = Math.max(j, 0);\n        updatedBuffer.splice(j, i - j + 1);\n        return updatedBuffer;\n    };\n    const shallowEqual = function (a, b) {\n        // if both are undefined\n        // or one or the other is undefined\n        // they are not equal\n        if (!a && !b || !a && b || a && !b) {\n            return false;\n        } // they are the same object and thus, equal\n\n        if (a === b) {\n            return true;\n        } // sort keys so we can make sure they have\n        // all the same keys later.\n\n        const akeys = Object.keys(a).sort();\n        const bkeys = Object.keys(b).sort(); // different number of keys, not equal\n\n        if (akeys.length !== bkeys.length) {\n            return false;\n        }\n        for (let i = 0; i < akeys.length; i++) {\n            const key = akeys[i]; // different sorted keys, not equal\n\n            if (key !== bkeys[i]) {\n                return false;\n            } // different values, not equal\n\n            if (a[key] !== b[key]) {\n                return false;\n            }\n        }\n        return true;\n    };\n\n    // https://www.w3.org/TR/WebIDL-1/#quotaexceedederror\n    const QUOTA_EXCEEDED_ERR = 22;\n\n    /**\n     * The segment loader has no recourse except to fetch a segment in the\n     * current playlist and use the internal timestamps in that segment to\n     * generate a syncPoint. This function returns a good candidate index\n     * for that process.\n     *\n     * @param {Array} segments - the segments array from a playlist.\n     * @return {number} An index of a segment from the playlist to load\n     */\n\n    const getSyncSegmentCandidate = function (currentTimeline, segments, targetTime) {\n        segments = segments || [];\n        const timelineSegments = [];\n        let time = 0;\n        for (let i = 0; i < segments.length; i++) {\n            const segment = segments[i];\n            if (currentTimeline === segment.timeline) {\n                timelineSegments.push(i);\n                time += segment.duration;\n                if (time > targetTime) {\n                    return i;\n                }\n            }\n        }\n        if (timelineSegments.length === 0) {\n            return 0;\n        } // default to the last timeline segment\n\n        return timelineSegments[timelineSegments.length - 1];\n    }; // In the event of a quota exceeded error, keep at least one second of back buffer. This\n    // number was arbitrarily chosen and may be updated in the future, but seemed reasonable\n    // as a start to prevent any potential issues with removing content too close to the\n    // playhead.\n\n    const MIN_BACK_BUFFER = 1; // in ms\n\n    const CHECK_BUFFER_DELAY = 500;\n    const finite = num => typeof num === 'number' && isFinite(num); // With most content hovering around 30fps, if a segment has a duration less than a half\n    // frame at 30fps or one frame at 60fps, the bandwidth and throughput calculations will\n    // not accurately reflect the rest of the content.\n\n    const MIN_SEGMENT_DURATION_TO_SAVE_STATS = 1 / 60;\n    const illegalMediaSwitch = (loaderType, startingMedia, trackInfo) => {\n        // Although these checks should most likely cover non 'main' types, for now it narrows\n        // the scope of our checks.\n        if (loaderType !== 'main' || !startingMedia || !trackInfo) {\n            return null;\n        }\n        if (!trackInfo.hasAudio && !trackInfo.hasVideo) {\n            return 'Neither audio nor video found in segment.';\n        }\n        if (startingMedia.hasVideo && !trackInfo.hasVideo) {\n            return 'Only audio found in segment when we expected video.' + ' We can\\'t switch to audio only from a stream that had video.' + ' To get rid of this message, please add codec information to the manifest.';\n        }\n        if (!startingMedia.hasVideo && trackInfo.hasVideo) {\n            return 'Video found in segment when we expected only audio.' + ' We can\\'t switch to a stream with video from an audio only stream.' + ' To get rid of this message, please add codec information to the manifest.';\n        }\n        return null;\n    };\n    /**\n     * Calculates a time value that is safe to remove from the back buffer without interrupting\n     * playback.\n     *\n     * @param {TimeRange} seekable\n     *        The current seekable range\n     * @param {number} currentTime\n     *        The current time of the player\n     * @param {number} targetDuration\n     *        The target duration of the current playlist\n     * @return {number}\n     *         Time that is safe to remove from the back buffer without interrupting playback\n     */\n\n    const safeBackBufferTrimTime = (seekable, currentTime, targetDuration) => {\n        // 30 seconds before the playhead provides a safe default for trimming.\n        //\n        // Choosing a reasonable default is particularly important for high bitrate content and\n        // VOD videos/live streams with large windows, as the buffer may end up overfilled and\n        // throw an APPEND_BUFFER_ERR.\n        let trimTime = currentTime - Config.BACK_BUFFER_LENGTH;\n        if (seekable.length) {\n            // Some live playlists may have a shorter window of content than the full allowed back\n            // buffer. For these playlists, don't save content that's no longer within the window.\n            trimTime = Math.max(trimTime, seekable.start(0));\n        } // Don't remove within target duration of the current time to avoid the possibility of\n        // removing the GOP currently being played, as removing it can cause playback stalls.\n\n        const maxTrimTime = currentTime - targetDuration;\n        return Math.min(maxTrimTime, trimTime);\n    };\n    const segmentInfoString = segmentInfo => {\n        const {\n            startOfSegment,\n            duration,\n            segment,\n            part,\n            playlist: {\n                mediaSequence: seq,\n                id,\n                segments = []\n            },\n            mediaIndex: index,\n            partIndex,\n            timeline\n        } = segmentInfo;\n        const segmentLen = segments.length - 1;\n        let selection = 'mediaIndex/partIndex increment';\n        if (segmentInfo.getMediaInfoForTime) {\n            selection = `getMediaInfoForTime (${segmentInfo.getMediaInfoForTime})`;\n        } else if (segmentInfo.isSyncRequest) {\n            selection = 'getSyncSegmentCandidate (isSyncRequest)';\n        }\n        if (segmentInfo.independent) {\n            selection += ` with independent ${segmentInfo.independent}`;\n        }\n        const hasPartIndex = typeof partIndex === 'number';\n        const name = segmentInfo.segment.uri ? 'segment' : 'pre-segment';\n        const zeroBasedPartCount = hasPartIndex ? getKnownPartCount({\n            preloadSegment: segment\n        }) - 1 : 0;\n        return `${name} [${seq + index}/${seq + segmentLen}]` + (hasPartIndex ? ` part [${partIndex}/${zeroBasedPartCount}]` : '') + ` segment start/end [${segment.start} => ${segment.end}]` + (hasPartIndex ? ` part start/end [${part.start} => ${part.end}]` : '') + ` startOfSegment [${startOfSegment}]` + ` duration [${duration}]` + ` timeline [${timeline}]` + ` selected by [${selection}]` + ` playlist [${id}]`;\n    };\n    const timingInfoPropertyForMedia = mediaType => `${mediaType}TimingInfo`;\n    /**\n     * Returns the timestamp offset to use for the segment.\n     *\n     * @param {number} segmentTimeline\n     *        The timeline of the segment\n     * @param {number} currentTimeline\n     *        The timeline currently being followed by the loader\n     * @param {number} startOfSegment\n     *        The estimated segment start\n     * @param {TimeRange[]} buffered\n     *        The loader's buffer\n     * @param {boolean} overrideCheck\n     *        If true, no checks are made to see if the timestamp offset value should be set,\n     *        but sets it directly to a value.\n     *\n     * @return {number|null}\n     *         Either a number representing a new timestamp offset, or null if the segment is\n     *         part of the same timeline\n     */\n\n    const timestampOffsetForSegment = ({\n                                           segmentTimeline,\n                                           currentTimeline,\n                                           startOfSegment,\n                                           buffered,\n                                           overrideCheck\n                                       }) => {\n        // Check to see if we are crossing a discontinuity to see if we need to set the\n        // timestamp offset on the transmuxer and source buffer.\n        //\n        // Previously, we changed the timestampOffset if the start of this segment was less than\n        // the currently set timestampOffset, but this isn't desirable as it can produce bad\n        // behavior, especially around long running live streams.\n        if (!overrideCheck && segmentTimeline === currentTimeline) {\n            return null;\n        } // When changing renditions, it's possible to request a segment on an older timeline. For\n        // instance, given two renditions with the following:\n        //\n        // #EXTINF:10\n        // segment1\n        // #EXT-X-DISCONTINUITY\n        // #EXTINF:10\n        // segment2\n        // #EXTINF:10\n        // segment3\n        //\n        // And the current player state:\n        //\n        // current time: 8\n        // buffer: 0 => 20\n        //\n        // The next segment on the current rendition would be segment3, filling the buffer from\n        // 20s onwards. However, if a rendition switch happens after segment2 was requested,\n        // then the next segment to be requested will be segment1 from the new rendition in\n        // order to fill time 8 and onwards. Using the buffered end would result in repeated\n        // content (since it would position segment1 of the new rendition starting at 20s). This\n        // case can be identified when the new segment's timeline is a prior value. Instead of\n        // using the buffered end, the startOfSegment can be used, which, hopefully, will be\n        // more accurate to the actual start time of the segment.\n\n        if (segmentTimeline < currentTimeline) {\n            return startOfSegment;\n        } // segmentInfo.startOfSegment used to be used as the timestamp offset, however, that\n        // value uses the end of the last segment if it is available. While this value\n        // should often be correct, it's better to rely on the buffered end, as the new\n        // content post discontinuity should line up with the buffered end as if it were\n        // time 0 for the new content.\n\n        return buffered.length ? buffered.end(buffered.length - 1) : startOfSegment;\n    };\n    /**\n     * Returns whether or not the loader should wait for a timeline change from the timeline\n     * change controller before processing the segment.\n     *\n     * Primary timing in VHS goes by video. This is different from most media players, as\n     * audio is more often used as the primary timing source. For the foreseeable future, VHS\n     * will continue to use video as the primary timing source, due to the current logic and\n     * expectations built around it.\n\n     * Since the timing follows video, in order to maintain sync, the video loader is\n     * responsible for setting both audio and video source buffer timestamp offsets.\n     *\n     * Setting different values for audio and video source buffers could lead to\n     * desyncing. The following examples demonstrate some of the situations where this\n     * distinction is important. Note that all of these cases involve demuxed content. When\n     * content is muxed, the audio and video are packaged together, therefore syncing\n     * separate media playlists is not an issue.\n     *\n     * CASE 1: Audio prepares to load a new timeline before video:\n     *\n     * Timeline:       0                 1\n     * Audio Segments: 0 1 2 3 4 5 DISCO 6 7 8 9\n     * Audio Loader:                     ^\n     * Video Segments: 0 1 2 3 4 5 DISCO 6 7 8 9\n     * Video Loader              ^\n     *\n     * In the above example, the audio loader is preparing to load the 6th segment, the first\n     * after a discontinuity, while the video loader is still loading the 5th segment, before\n     * the discontinuity.\n     *\n     * If the audio loader goes ahead and loads and appends the 6th segment before the video\n     * loader crosses the discontinuity, then when appended, the 6th audio segment will use\n     * the timestamp offset from timeline 0. This will likely lead to desyncing. In addition,\n     * the audio loader must provide the audioAppendStart value to trim the content in the\n     * transmuxer, and that value relies on the audio timestamp offset. Since the audio\n     * timestamp offset is set by the video (main) loader, the audio loader shouldn't load the\n     * segment until that value is provided.\n     *\n     * CASE 2: Video prepares to load a new timeline before audio:\n     *\n     * Timeline:       0                 1\n     * Audio Segments: 0 1 2 3 4 5 DISCO 6 7 8 9\n     * Audio Loader:             ^\n     * Video Segments: 0 1 2 3 4 5 DISCO 6 7 8 9\n     * Video Loader                      ^\n     *\n     * In the above example, the video loader is preparing to load the 6th segment, the first\n     * after a discontinuity, while the audio loader is still loading the 5th segment, before\n     * the discontinuity.\n     *\n     * If the video loader goes ahead and loads and appends the 6th segment, then once the\n     * segment is loaded and processed, both the video and audio timestamp offsets will be\n     * set, since video is used as the primary timing source. This is to ensure content lines\n     * up appropriately, as any modifications to the video timing are reflected by audio when\n     * the video loader sets the audio and video timestamp offsets to the same value. However,\n     * setting the timestamp offset for audio before audio has had a chance to change\n     * timelines will likely lead to desyncing, as the audio loader will append segment 5 with\n     * a timestamp intended to apply to segments from timeline 1 rather than timeline 0.\n     *\n     * CASE 3: When seeking, audio prepares to load a new timeline before video\n     *\n     * Timeline:       0                 1\n     * Audio Segments: 0 1 2 3 4 5 DISCO 6 7 8 9\n     * Audio Loader:           ^\n     * Video Segments: 0 1 2 3 4 5 DISCO 6 7 8 9\n     * Video Loader            ^\n     *\n     * In the above example, both audio and video loaders are loading segments from timeline\n     * 0, but imagine that the seek originated from timeline 1.\n     *\n     * When seeking to a new timeline, the timestamp offset will be set based on the expected\n     * segment start of the loaded video segment. In order to maintain sync, the audio loader\n     * must wait for the video loader to load its segment and update both the audio and video\n     * timestamp offsets before it may load and append its own segment. This is the case\n     * whether the seek results in a mismatched segment request (e.g., the audio loader\n     * chooses to load segment 3 and the video loader chooses to load segment 4) or the\n     * loaders choose to load the same segment index from each playlist, as the segments may\n     * not be aligned perfectly, even for matching segment indexes.\n     *\n     * @param {Object} timelinechangeController\n     * @param {number} currentTimeline\n     *        The timeline currently being followed by the loader\n     * @param {number} segmentTimeline\n     *        The timeline of the segment being loaded\n     * @param {('main'|'audio')} loaderType\n     *        The loader type\n     * @param {boolean} audioDisabled\n     *        Whether the audio is disabled for the loader. This should only be true when the\n     *        loader may have muxed audio in its segment, but should not append it, e.g., for\n     *        the main loader when an alternate audio playlist is active.\n     *\n     * @return {boolean}\n     *         Whether the loader should wait for a timeline change from the timeline change\n     *         controller before processing the segment\n     */\n\n    const shouldWaitForTimelineChange = ({\n                                             timelineChangeController,\n                                             currentTimeline,\n                                             segmentTimeline,\n                                             loaderType,\n                                             audioDisabled\n                                         }) => {\n        if (currentTimeline === segmentTimeline) {\n            return false;\n        }\n        if (loaderType === 'audio') {\n            const lastMainTimelineChange = timelineChangeController.lastTimelineChange({\n                type: 'main'\n            }); // Audio loader should wait if:\n            //\n            // * main hasn't had a timeline change yet (thus has not loaded its first segment)\n            // * main hasn't yet changed to the timeline audio is looking to load\n\n            return !lastMainTimelineChange || lastMainTimelineChange.to !== segmentTimeline;\n        } // The main loader only needs to wait for timeline changes if there's demuxed audio.\n        // Otherwise, there's nothing to wait for, since audio would be muxed into the main\n        // loader's segments (or the content is audio/video only and handled by the main\n        // loader).\n\n        if (loaderType === 'main' && audioDisabled) {\n            const pendingAudioTimelineChange = timelineChangeController.pendingTimelineChange({\n                type: 'audio'\n            }); // Main loader should wait for the audio loader if audio is not pending a timeline\n            // change to the current timeline.\n            //\n            // Since the main loader is responsible for setting the timestamp offset for both\n            // audio and video, the main loader must wait for audio to be about to change to its\n            // timeline before setting the offset, otherwise, if audio is behind in loading,\n            // segments from the previous timeline would be adjusted by the new timestamp offset.\n            //\n            // This requirement means that video will not cross a timeline until the audio is\n            // about to cross to it, so that way audio and video will always cross the timeline\n            // together.\n            //\n            // In addition to normal timeline changes, these rules also apply to the start of a\n            // stream (going from a non-existent timeline, -1, to timeline 0). It's important\n            // that these rules apply to the first timeline change because if they did not, it's\n            // possible that the main loader will cross two timelines before the audio loader has\n            // crossed one. Logic may be implemented to handle the startup as a special case, but\n            // it's easier to simply treat all timeline changes the same.\n\n            if (pendingAudioTimelineChange && pendingAudioTimelineChange.to === segmentTimeline) {\n                return false;\n            }\n            return true;\n        }\n        return false;\n    };\n    const mediaDuration = timingInfos => {\n        let maxDuration = 0;\n        ['video', 'audio'].forEach(function (type) {\n            const typeTimingInfo = timingInfos[`${type}TimingInfo`];\n            if (!typeTimingInfo) {\n                return;\n            }\n            const {\n                start,\n                end\n            } = typeTimingInfo;\n            let duration;\n            if (typeof start === 'bigint' || typeof end === 'bigint') {\n                duration = window.BigInt(end) - window.BigInt(start);\n            } else if (typeof start === 'number' && typeof end === 'number') {\n                duration = end - start;\n            }\n            if (typeof duration !== 'undefined' && duration > maxDuration) {\n                maxDuration = duration;\n            }\n        }); // convert back to a number if it is lower than MAX_SAFE_INTEGER\n        // as we only need BigInt when we are above that.\n\n        if (typeof maxDuration === 'bigint' && maxDuration < Number.MAX_SAFE_INTEGER) {\n            maxDuration = Number(maxDuration);\n        }\n        return maxDuration;\n    };\n    const segmentTooLong = ({\n                                segmentDuration,\n                                maxDuration\n                            }) => {\n        // 0 duration segments are most likely due to metadata only segments or a lack of\n        // information.\n        if (!segmentDuration) {\n            return false;\n        } // For HLS:\n        //\n        // https://tools.ietf.org/html/draft-pantos-http-live-streaming-23#section-4.3.3.1\n        // The EXTINF duration of each Media Segment in the Playlist\n        // file, when rounded to the nearest integer, MUST be less than or equal\n        // to the target duration; longer segments can trigger playback stalls\n        // or other errors.\n        //\n        // For DASH, the mpd-parser uses the largest reported segment duration as the target\n        // duration. Although that reported duration is occasionally approximate (i.e., not\n        // exact), a strict check may report that a segment is too long more often in DASH.\n\n        return Math.round(segmentDuration) > maxDuration + TIME_FUDGE_FACTOR;\n    };\n    const getTroublesomeSegmentDurationMessage = (segmentInfo, sourceType) => {\n        // Right now we aren't following DASH's timing model exactly, so only perform\n        // this check for HLS content.\n        if (sourceType !== 'hls') {\n            return null;\n        }\n        const segmentDuration = mediaDuration({\n            audioTimingInfo: segmentInfo.audioTimingInfo,\n            videoTimingInfo: segmentInfo.videoTimingInfo\n        }); // Don't report if we lack information.\n        //\n        // If the segment has a duration of 0 it is either a lack of information or a\n        // metadata only segment and shouldn't be reported here.\n\n        if (!segmentDuration) {\n            return null;\n        }\n        const targetDuration = segmentInfo.playlist.targetDuration;\n        const isSegmentWayTooLong = segmentTooLong({\n            segmentDuration,\n            maxDuration: targetDuration * 2\n        });\n        const isSegmentSlightlyTooLong = segmentTooLong({\n            segmentDuration,\n            maxDuration: targetDuration\n        });\n        const segmentTooLongMessage = `Segment with index ${segmentInfo.mediaIndex} ` + `from playlist ${segmentInfo.playlist.id} ` + `has a duration of ${segmentDuration} ` + `when the reported duration is ${segmentInfo.duration} ` + `and the target duration is ${targetDuration}. ` + 'For HLS content, a duration in excess of the target duration may result in ' + 'playback issues. See the HLS specification section on EXT-X-TARGETDURATION for ' + 'more details: ' + 'https://tools.ietf.org/html/draft-pantos-http-live-streaming-23#section-4.3.3.1';\n        if (isSegmentWayTooLong || isSegmentSlightlyTooLong) {\n            return {\n                severity: isSegmentWayTooLong ? 'warn' : 'info',\n                message: segmentTooLongMessage\n            };\n        }\n        return null;\n    };\n    /**\n     * An object that manages segment loading and appending.\n     *\n     * @class SegmentLoader\n     * @param {Object} options required and optional options\n     * @extends videojs.EventTarget\n     */\n\n    class SegmentLoader extends videojs.EventTarget {\n        constructor(settings, options = {}) {\n            super(); // check pre-conditions\n\n            if (!settings) {\n                throw new TypeError('Initialization settings are required');\n            }\n            if (typeof settings.currentTime !== 'function') {\n                throw new TypeError('No currentTime getter specified');\n            }\n            if (!settings.mediaSource) {\n                throw new TypeError('No MediaSource specified');\n            } // public properties\n\n            this.bandwidth = settings.bandwidth;\n            this.throughput = {\n                rate: 0,\n                count: 0\n            };\n            this.roundTrip = NaN;\n            this.resetStats_();\n            this.mediaIndex = null;\n            this.partIndex = null; // private settings\n\n            this.hasPlayed_ = settings.hasPlayed;\n            this.currentTime_ = settings.currentTime;\n            this.seekable_ = settings.seekable;\n            this.seeking_ = settings.seeking;\n            this.duration_ = settings.duration;\n            this.mediaSource_ = settings.mediaSource;\n            this.vhs_ = settings.vhs;\n            this.loaderType_ = settings.loaderType;\n            this.currentMediaInfo_ = void 0;\n            this.startingMediaInfo_ = void 0;\n            this.segmentMetadataTrack_ = settings.segmentMetadataTrack;\n            this.goalBufferLength_ = settings.goalBufferLength;\n            this.sourceType_ = settings.sourceType;\n            this.sourceUpdater_ = settings.sourceUpdater;\n            this.inbandTextTracks_ = settings.inbandTextTracks;\n            this.state_ = 'INIT';\n            this.timelineChangeController_ = settings.timelineChangeController;\n            this.shouldSaveSegmentTimingInfo_ = true;\n            this.parse708captions_ = settings.parse708captions;\n            this.useDtsForTimestampOffset_ = settings.useDtsForTimestampOffset;\n            this.captionServices_ = settings.captionServices;\n            this.exactManifestTimings = settings.exactManifestTimings; // private instance variables\n\n            this.checkBufferTimeout_ = null;\n            this.error_ = void 0;\n            this.currentTimeline_ = -1;\n            this.pendingSegment_ = null;\n            this.xhrOptions_ = null;\n            this.pendingSegments_ = [];\n            this.audioDisabled_ = false;\n            this.isPendingTimestampOffset_ = false; // TODO possibly move gopBuffer and timeMapping info to a separate controller\n\n            this.gopBuffer_ = [];\n            this.timeMapping_ = 0;\n            this.safeAppend_ = videojs.browser.IE_VERSION >= 11;\n            this.appendInitSegment_ = {\n                audio: true,\n                video: true\n            };\n            this.playlistOfLastInitSegment_ = {\n                audio: null,\n                video: null\n            };\n            this.callQueue_ = []; // If the segment loader prepares to load a segment, but does not have enough\n            // information yet to start the loading process (e.g., if the audio loader wants to\n            // load a segment from the next timeline but the main loader hasn't yet crossed that\n            // timeline), then the load call will be added to the queue until it is ready to be\n            // processed.\n\n            this.loadQueue_ = [];\n            this.metadataQueue_ = {\n                id3: [],\n                caption: []\n            };\n            this.waitingOnRemove_ = false;\n            this.quotaExceededErrorRetryTimeout_ = null; // Fragmented mp4 playback\n\n            this.activeInitSegmentId_ = null;\n            this.initSegments_ = {}; // HLSe playback\n\n            this.cacheEncryptionKeys_ = settings.cacheEncryptionKeys;\n            this.keyCache_ = {};\n            this.decrypter_ = settings.decrypter; // Manages the tracking and generation of sync-points, mappings\n            // between a time in the display time and a segment index within\n            // a playlist\n\n            this.syncController_ = settings.syncController;\n            this.syncPoint_ = {\n                segmentIndex: 0,\n                time: 0\n            };\n            this.transmuxer_ = this.createTransmuxer_();\n            this.triggerSyncInfoUpdate_ = () => this.trigger('syncinfoupdate');\n            this.syncController_.on('syncinfoupdate', this.triggerSyncInfoUpdate_);\n            this.mediaSource_.addEventListener('sourceopen', () => {\n                if (!this.isEndOfStream_()) {\n                    this.ended_ = false;\n                }\n            }); // ...for determining the fetch location\n\n            this.fetchAtBuffer_ = false;\n            this.logger_ = logger(`SegmentLoader[${this.loaderType_}]`);\n            Object.defineProperty(this, 'state', {\n                get() {\n                    return this.state_;\n                },\n                set(newState) {\n                    if (newState !== this.state_) {\n                        this.logger_(`${this.state_} -> ${newState}`);\n                        this.state_ = newState;\n                        this.trigger('statechange');\n                    }\n                }\n            });\n            this.sourceUpdater_.on('ready', () => {\n                if (this.hasEnoughInfoToAppend_()) {\n                    this.processCallQueue_();\n                }\n            }); // Only the main loader needs to listen for pending timeline changes, as the main\n            // loader should wait for audio to be ready to change its timeline so that both main\n            // and audio timelines change together. For more details, see the\n            // shouldWaitForTimelineChange function.\n\n            if (this.loaderType_ === 'main') {\n                this.timelineChangeController_.on('pendingtimelinechange', () => {\n                    if (this.hasEnoughInfoToAppend_()) {\n                        this.processCallQueue_();\n                    }\n                });\n            } // The main loader only listens on pending timeline changes, but the audio loader,\n            // since its loads follow main, needs to listen on timeline changes. For more details,\n            // see the shouldWaitForTimelineChange function.\n\n            if (this.loaderType_ === 'audio') {\n                this.timelineChangeController_.on('timelinechange', () => {\n                    if (this.hasEnoughInfoToLoad_()) {\n                        this.processLoadQueue_();\n                    }\n                    if (this.hasEnoughInfoToAppend_()) {\n                        this.processCallQueue_();\n                    }\n                });\n            }\n        }\n        createTransmuxer_() {\n            return segmentTransmuxer.createTransmuxer({\n                remux: false,\n                alignGopsAtEnd: this.safeAppend_,\n                keepOriginalTimestamps: true,\n                parse708captions: this.parse708captions_,\n                captionServices: this.captionServices_\n            });\n        }\n        /**\n         * reset all of our media stats\n         *\n         * @private\n         */\n\n        resetStats_() {\n            this.mediaBytesTransferred = 0;\n            this.mediaRequests = 0;\n            this.mediaRequestsAborted = 0;\n            this.mediaRequestsTimedout = 0;\n            this.mediaRequestsErrored = 0;\n            this.mediaTransferDuration = 0;\n            this.mediaSecondsLoaded = 0;\n            this.mediaAppends = 0;\n        }\n        /**\n         * dispose of the SegmentLoader and reset to the default state\n         */\n\n        dispose() {\n            this.trigger('dispose');\n            this.state = 'DISPOSED';\n            this.pause();\n            this.abort_();\n            if (this.transmuxer_) {\n                this.transmuxer_.terminate();\n            }\n            this.resetStats_();\n            if (this.checkBufferTimeout_) {\n                window.clearTimeout(this.checkBufferTimeout_);\n            }\n            if (this.syncController_ && this.triggerSyncInfoUpdate_) {\n                this.syncController_.off('syncinfoupdate', this.triggerSyncInfoUpdate_);\n            }\n            this.off();\n        }\n        setAudio(enable) {\n            this.audioDisabled_ = !enable;\n            if (enable) {\n                this.appendInitSegment_.audio = true;\n            } else {\n                // remove current track audio if it gets disabled\n                this.sourceUpdater_.removeAudio(0, this.duration_());\n            }\n        }\n        /**\n         * abort anything that is currently doing on with the SegmentLoader\n         * and reset to a default state\n         */\n\n        abort() {\n            if (this.state !== 'WAITING') {\n                if (this.pendingSegment_) {\n                    this.pendingSegment_ = null;\n                }\n                return;\n            }\n            this.abort_(); // We aborted the requests we were waiting on, so reset the loader's state to READY\n            // since we are no longer \"waiting\" on any requests. XHR callback is not always run\n            // when the request is aborted. This will prevent the loader from being stuck in the\n            // WAITING state indefinitely.\n\n            this.state = 'READY'; // don't wait for buffer check timeouts to begin fetching the\n            // next segment\n\n            if (!this.paused()) {\n                this.monitorBuffer_();\n            }\n        }\n        /**\n         * abort all pending xhr requests and null any pending segements\n         *\n         * @private\n         */\n\n        abort_() {\n            if (this.pendingSegment_ && this.pendingSegment_.abortRequests) {\n                this.pendingSegment_.abortRequests();\n            } // clear out the segment being processed\n\n            this.pendingSegment_ = null;\n            this.callQueue_ = [];\n            this.loadQueue_ = [];\n            this.metadataQueue_.id3 = [];\n            this.metadataQueue_.caption = [];\n            this.timelineChangeController_.clearPendingTimelineChange(this.loaderType_);\n            this.waitingOnRemove_ = false;\n            window.clearTimeout(this.quotaExceededErrorRetryTimeout_);\n            this.quotaExceededErrorRetryTimeout_ = null;\n        }\n        checkForAbort_(requestId) {\n            // If the state is APPENDING, then aborts will not modify the state, meaning the first\n            // callback that happens should reset the state to READY so that loading can continue.\n            if (this.state === 'APPENDING' && !this.pendingSegment_) {\n                this.state = 'READY';\n                return true;\n            }\n            if (!this.pendingSegment_ || this.pendingSegment_.requestId !== requestId) {\n                return true;\n            }\n            return false;\n        }\n        /**\n         * set an error on the segment loader and null out any pending segements\n         *\n         * @param {Error} error the error to set on the SegmentLoader\n         * @return {Error} the error that was set or that is currently set\n         */\n\n        error(error) {\n            if (typeof error !== 'undefined') {\n                this.logger_('error occurred:', error);\n                this.error_ = error;\n            }\n            this.pendingSegment_ = null;\n            return this.error_;\n        }\n        endOfStream() {\n            this.ended_ = true;\n            if (this.transmuxer_) {\n                // need to clear out any cached data to prepare for the new segment\n                segmentTransmuxer.reset(this.transmuxer_);\n            }\n            this.gopBuffer_.length = 0;\n            this.pause();\n            this.trigger('ended');\n        }\n        /**\n         * Indicates which time ranges are buffered\n         *\n         * @return {TimeRange}\n         *         TimeRange object representing the current buffered ranges\n         */\n\n        buffered_() {\n            const trackInfo = this.getMediaInfo_();\n            if (!this.sourceUpdater_ || !trackInfo) {\n                return createTimeRanges();\n            }\n            if (this.loaderType_ === 'main') {\n                const {\n                    hasAudio,\n                    hasVideo,\n                    isMuxed\n                } = trackInfo;\n                if (hasVideo && hasAudio && !this.audioDisabled_ && !isMuxed) {\n                    return this.sourceUpdater_.buffered();\n                }\n                if (hasVideo) {\n                    return this.sourceUpdater_.videoBuffered();\n                }\n            } // One case that can be ignored for now is audio only with alt audio,\n            // as we don't yet have proper support for that.\n\n            return this.sourceUpdater_.audioBuffered();\n        }\n        /**\n         * Gets and sets init segment for the provided map\n         *\n         * @param {Object} map\n         *        The map object representing the init segment to get or set\n         * @param {boolean=} set\n         *        If true, the init segment for the provided map should be saved\n         * @return {Object}\n         *         map object for desired init segment\n         */\n\n        initSegmentForMap(map, set = false) {\n            if (!map) {\n                return null;\n            }\n            const id = initSegmentId(map);\n            let storedMap = this.initSegments_[id];\n            if (set && !storedMap && map.bytes) {\n                this.initSegments_[id] = storedMap = {\n                    resolvedUri: map.resolvedUri,\n                    byterange: map.byterange,\n                    bytes: map.bytes,\n                    tracks: map.tracks,\n                    timescales: map.timescales\n                };\n            }\n            return storedMap || map;\n        }\n        /**\n         * Gets and sets key for the provided key\n         *\n         * @param {Object} key\n         *        The key object representing the key to get or set\n         * @param {boolean=} set\n         *        If true, the key for the provided key should be saved\n         * @return {Object}\n         *         Key object for desired key\n         */\n\n        segmentKey(key, set = false) {\n            if (!key) {\n                return null;\n            }\n            const id = segmentKeyId(key);\n            let storedKey = this.keyCache_[id]; // TODO: We should use the HTTP Expires header to invalidate our cache per\n            // https://tools.ietf.org/html/draft-pantos-http-live-streaming-23#section-6.2.3\n\n            if (this.cacheEncryptionKeys_ && set && !storedKey && key.bytes) {\n                this.keyCache_[id] = storedKey = {\n                    resolvedUri: key.resolvedUri,\n                    bytes: key.bytes\n                };\n            }\n            const result = {\n                resolvedUri: (storedKey || key).resolvedUri\n            };\n            if (storedKey) {\n                result.bytes = storedKey.bytes;\n            }\n            return result;\n        }\n        /**\n         * Returns true if all configuration required for loading is present, otherwise false.\n         *\n         * @return {boolean} True if the all configuration is ready for loading\n         * @private\n         */\n\n        couldBeginLoading_() {\n            return this.playlist_ && !this.paused();\n        }\n        /**\n         * load a playlist and start to fill the buffer\n         */\n\n        load() {\n            // un-pause\n            this.monitorBuffer_(); // if we don't have a playlist yet, keep waiting for one to be\n            // specified\n\n            if (!this.playlist_) {\n                return;\n            } // if all the configuration is ready, initialize and begin loading\n\n            if (this.state === 'INIT' && this.couldBeginLoading_()) {\n                return this.init_();\n            } // if we're in the middle of processing a segment already, don't\n            // kick off an additional segment request\n\n            if (!this.couldBeginLoading_() || this.state !== 'READY' && this.state !== 'INIT') {\n                return;\n            }\n            this.state = 'READY';\n        }\n        /**\n         * Once all the starting parameters have been specified, begin\n         * operation. This method should only be invoked from the INIT\n         * state.\n         *\n         * @private\n         */\n\n        init_() {\n            this.state = 'READY'; // if this is the audio segment loader, and it hasn't been inited before, then any old\n            // audio data from the muxed content should be removed\n\n            this.resetEverything();\n            return this.monitorBuffer_();\n        }\n        /**\n         * set a playlist on the segment loader\n         *\n         * @param {PlaylistLoader} media the playlist to set on the segment loader\n         */\n\n        playlist(newPlaylist, options = {}) {\n            if (!newPlaylist) {\n                return;\n            }\n            const oldPlaylist = this.playlist_;\n            const segmentInfo = this.pendingSegment_;\n            this.playlist_ = newPlaylist;\n            this.xhrOptions_ = options; // when we haven't started playing yet, the start of a live playlist\n            // is always our zero-time so force a sync update each time the playlist\n            // is refreshed from the server\n            //\n            // Use the INIT state to determine if playback has started, as the playlist sync info\n            // should be fixed once requests begin (as sync points are generated based on sync\n            // info), but not before then.\n\n            if (this.state === 'INIT') {\n                newPlaylist.syncInfo = {\n                    mediaSequence: newPlaylist.mediaSequence,\n                    time: 0\n                }; // Setting the date time mapping means mapping the program date time (if available)\n                // to time 0 on the player's timeline. The playlist's syncInfo serves a similar\n                // purpose, mapping the initial mediaSequence to time zero. Since the syncInfo can\n                // be updated as the playlist is refreshed before the loader starts loading, the\n                // program date time mapping needs to be updated as well.\n                //\n                // This mapping is only done for the main loader because a program date time should\n                // map equivalently between playlists.\n\n                if (this.loaderType_ === 'main') {\n                    this.syncController_.setDateTimeMappingForStart(newPlaylist);\n                }\n            }\n            let oldId = null;\n            if (oldPlaylist) {\n                if (oldPlaylist.id) {\n                    oldId = oldPlaylist.id;\n                } else if (oldPlaylist.uri) {\n                    oldId = oldPlaylist.uri;\n                }\n            }\n            this.logger_(`playlist update [${oldId} => ${newPlaylist.id || newPlaylist.uri}]`); // in VOD, this is always a rendition switch (or we updated our syncInfo above)\n            // in LIVE, we always want to update with new playlists (including refreshes)\n\n            this.trigger('syncinfoupdate'); // if we were unpaused but waiting for a playlist, start\n            // buffering now\n\n            if (this.state === 'INIT' && this.couldBeginLoading_()) {\n                return this.init_();\n            }\n            if (!oldPlaylist || oldPlaylist.uri !== newPlaylist.uri) {\n                if (this.mediaIndex !== null) {\n                    // we must reset/resync the segment loader when we switch renditions and\n                    // the segment loader is already synced to the previous rendition\n                    // on playlist changes we want it to be possible to fetch\n                    // at the buffer for vod but not for live. So we use resetLoader\n                    // for live and resyncLoader for vod. We want this because\n                    // if a playlist uses independent and non-independent segments/parts the\n                    // buffer may not accurately reflect the next segment that we should try\n                    // downloading.\n                    if (!newPlaylist.endList) {\n                        this.resetLoader();\n                    } else {\n                        this.resyncLoader();\n                    }\n                }\n                this.currentMediaInfo_ = void 0;\n                this.trigger('playlistupdate'); // the rest of this function depends on `oldPlaylist` being defined\n\n                return;\n            } // we reloaded the same playlist so we are in a live scenario\n            // and we will likely need to adjust the mediaIndex\n\n            const mediaSequenceDiff = newPlaylist.mediaSequence - oldPlaylist.mediaSequence;\n            this.logger_(`live window shift [${mediaSequenceDiff}]`); // update the mediaIndex on the SegmentLoader\n            // this is important because we can abort a request and this value must be\n            // equal to the last appended mediaIndex\n\n            if (this.mediaIndex !== null) {\n                this.mediaIndex -= mediaSequenceDiff; // this can happen if we are going to load the first segment, but get a playlist\n                // update during that. mediaIndex would go from 0 to -1 if mediaSequence in the\n                // new playlist was incremented by 1.\n\n                if (this.mediaIndex < 0) {\n                    this.mediaIndex = null;\n                    this.partIndex = null;\n                } else {\n                    const segment = this.playlist_.segments[this.mediaIndex]; // partIndex should remain the same for the same segment\n                    // unless parts fell off of the playlist for this segment.\n                    // In that case we need to reset partIndex and resync\n\n                    if (this.partIndex && (!segment.parts || !segment.parts.length || !segment.parts[this.partIndex])) {\n                        const mediaIndex = this.mediaIndex;\n                        this.logger_(`currently processing part (index ${this.partIndex}) no longer exists.`);\n                        this.resetLoader(); // We want to throw away the partIndex and the data associated with it,\n                        // as the part was dropped from our current playlists segment.\n                        // The mediaIndex will still be valid so keep that around.\n\n                        this.mediaIndex = mediaIndex;\n                    }\n                }\n            } // update the mediaIndex on the SegmentInfo object\n            // this is important because we will update this.mediaIndex with this value\n            // in `handleAppendsDone_` after the segment has been successfully appended\n\n            if (segmentInfo) {\n                segmentInfo.mediaIndex -= mediaSequenceDiff;\n                if (segmentInfo.mediaIndex < 0) {\n                    segmentInfo.mediaIndex = null;\n                    segmentInfo.partIndex = null;\n                } else {\n                    // we need to update the referenced segment so that timing information is\n                    // saved for the new playlist's segment, however, if the segment fell off the\n                    // playlist, we can leave the old reference and just lose the timing info\n                    if (segmentInfo.mediaIndex >= 0) {\n                        segmentInfo.segment = newPlaylist.segments[segmentInfo.mediaIndex];\n                    }\n                    if (segmentInfo.partIndex >= 0 && segmentInfo.segment.parts) {\n                        segmentInfo.part = segmentInfo.segment.parts[segmentInfo.partIndex];\n                    }\n                }\n            }\n            this.syncController_.saveExpiredSegmentInfo(oldPlaylist, newPlaylist);\n        }\n        /**\n         * Prevent the loader from fetching additional segments. If there\n         * is a segment request outstanding, it will finish processing\n         * before the loader halts. A segment loader can be unpaused by\n         * calling load().\n         */\n\n        pause() {\n            if (this.checkBufferTimeout_) {\n                window.clearTimeout(this.checkBufferTimeout_);\n                this.checkBufferTimeout_ = null;\n            }\n        }\n        /**\n         * Returns whether the segment loader is fetching additional\n         * segments when given the opportunity. This property can be\n         * modified through calls to pause() and load().\n         */\n\n        paused() {\n            return this.checkBufferTimeout_ === null;\n        }\n        /**\n         * Delete all the buffered data and reset the SegmentLoader\n         *\n         * @param {Function} [done] an optional callback to be executed when the remove\n         * operation is complete\n         */\n\n        resetEverything(done) {\n            this.ended_ = false;\n            this.activeInitSegmentId_ = null;\n            this.appendInitSegment_ = {\n                audio: true,\n                video: true\n            };\n            this.resetLoader(); // remove from 0, the earliest point, to Infinity, to signify removal of everything.\n            // VTT Segment Loader doesn't need to do anything but in the regular SegmentLoader,\n            // we then clamp the value to duration if necessary.\n\n            this.remove(0, Infinity, done); // clears fmp4 captions\n\n            if (this.transmuxer_) {\n                this.transmuxer_.postMessage({\n                    action: 'clearAllMp4Captions'\n                }); // reset the cache in the transmuxer\n\n                this.transmuxer_.postMessage({\n                    action: 'reset'\n                });\n            }\n        }\n        /**\n         * Force the SegmentLoader to resync and start loading around the currentTime instead\n         * of starting at the end of the buffer\n         *\n         * Useful for fast quality changes\n         */\n\n        resetLoader() {\n            this.fetchAtBuffer_ = false;\n            this.resyncLoader();\n        }\n        /**\n         * Force the SegmentLoader to restart synchronization and make a conservative guess\n         * before returning to the simple walk-forward method\n         */\n\n        resyncLoader() {\n            if (this.transmuxer_) {\n                // need to clear out any cached data to prepare for the new segment\n                segmentTransmuxer.reset(this.transmuxer_);\n            }\n            this.mediaIndex = null;\n            this.partIndex = null;\n            this.syncPoint_ = null;\n            this.isPendingTimestampOffset_ = false;\n            this.callQueue_ = [];\n            this.loadQueue_ = [];\n            this.metadataQueue_.id3 = [];\n            this.metadataQueue_.caption = [];\n            this.abort();\n            if (this.transmuxer_) {\n                this.transmuxer_.postMessage({\n                    action: 'clearParsedMp4Captions'\n                });\n            }\n        }\n        /**\n         * Remove any data in the source buffer between start and end times\n         *\n         * @param {number} start - the start time of the region to remove from the buffer\n         * @param {number} end - the end time of the region to remove from the buffer\n         * @param {Function} [done] - an optional callback to be executed when the remove\n         * @param {boolean} force - force all remove operations to happen\n         * operation is complete\n         */\n\n        remove(start, end, done = () => {}, force = false) {\n            // clamp end to duration if we need to remove everything.\n            // This is due to a browser bug that causes issues if we remove to Infinity.\n            // videojs/videojs-contrib-hls#1225\n            if (end === Infinity) {\n                end = this.duration_();\n            } // skip removes that would throw an error\n            // commonly happens during a rendition switch at the start of a video\n            // from start 0 to end 0\n\n            if (end <= start) {\n                this.logger_('skipping remove because end ${end} is <= start ${start}');\n                return;\n            }\n            if (!this.sourceUpdater_ || !this.getMediaInfo_()) {\n                this.logger_('skipping remove because no source updater or starting media info'); // nothing to remove if we haven't processed any media\n\n                return;\n            } // set it to one to complete this function's removes\n\n            let removesRemaining = 1;\n            const removeFinished = () => {\n                removesRemaining--;\n                if (removesRemaining === 0) {\n                    done();\n                }\n            };\n            if (force || !this.audioDisabled_) {\n                removesRemaining++;\n                this.sourceUpdater_.removeAudio(start, end, removeFinished);\n            } // While it would be better to only remove video if the main loader has video, this\n            // should be safe with audio only as removeVideo will call back even if there's no\n            // video buffer.\n            //\n            // In theory we can check to see if there's video before calling the remove, but in\n            // the event that we're switching between renditions and from video to audio only\n            // (when we add support for that), we may need to clear the video contents despite\n            // what the new media will contain.\n\n            if (force || this.loaderType_ === 'main') {\n                this.gopBuffer_ = removeGopBuffer(this.gopBuffer_, start, end, this.timeMapping_);\n                removesRemaining++;\n                this.sourceUpdater_.removeVideo(start, end, removeFinished);\n            } // remove any captions and ID3 tags\n\n            for (const track in this.inbandTextTracks_) {\n                removeCuesFromTrack(start, end, this.inbandTextTracks_[track]);\n            }\n            removeCuesFromTrack(start, end, this.segmentMetadataTrack_); // finished this function's removes\n\n            removeFinished();\n        }\n        /**\n         * (re-)schedule monitorBufferTick_ to run as soon as possible\n         *\n         * @private\n         */\n\n        monitorBuffer_() {\n            if (this.checkBufferTimeout_) {\n                window.clearTimeout(this.checkBufferTimeout_);\n            }\n            this.checkBufferTimeout_ = window.setTimeout(this.monitorBufferTick_.bind(this), 1);\n        }\n        /**\n         * As long as the SegmentLoader is in the READY state, periodically\n         * invoke fillBuffer_().\n         *\n         * @private\n         */\n\n        monitorBufferTick_() {\n            if (this.state === 'READY') {\n                this.fillBuffer_();\n            }\n            if (this.checkBufferTimeout_) {\n                window.clearTimeout(this.checkBufferTimeout_);\n            }\n            this.checkBufferTimeout_ = window.setTimeout(this.monitorBufferTick_.bind(this), CHECK_BUFFER_DELAY);\n        }\n        /**\n         * fill the buffer with segements unless the sourceBuffers are\n         * currently updating\n         *\n         * Note: this function should only ever be called by monitorBuffer_\n         * and never directly\n         *\n         * @private\n         */\n\n        fillBuffer_() {\n            // TODO since the source buffer maintains a queue, and we shouldn't call this function\n            // except when we're ready for the next segment, this check can most likely be removed\n            if (this.sourceUpdater_.updating()) {\n                return;\n            } // see if we need to begin loading immediately\n\n            const segmentInfo = this.chooseNextRequest_();\n            if (!segmentInfo) {\n                return;\n            }\n            if (typeof segmentInfo.timestampOffset === 'number') {\n                this.isPendingTimestampOffset_ = false;\n                this.timelineChangeController_.pendingTimelineChange({\n                    type: this.loaderType_,\n                    from: this.currentTimeline_,\n                    to: segmentInfo.timeline\n                });\n            }\n            this.loadSegment_(segmentInfo);\n        }\n        /**\n         * Determines if we should call endOfStream on the media source based\n         * on the state of the buffer or if appened segment was the final\n         * segment in the playlist.\n         *\n         * @param {number} [mediaIndex] the media index of segment we last appended\n         * @param {Object} [playlist] a media playlist object\n         * @return {boolean} do we need to call endOfStream on the MediaSource\n         */\n\n        isEndOfStream_(mediaIndex = this.mediaIndex, playlist = this.playlist_, partIndex = this.partIndex) {\n            if (!playlist || !this.mediaSource_) {\n                return false;\n            }\n            const segment = typeof mediaIndex === 'number' && playlist.segments[mediaIndex]; // mediaIndex is zero based but length is 1 based\n\n            const appendedLastSegment = mediaIndex + 1 === playlist.segments.length; // true if there are no parts, or this is the last part.\n\n            const appendedLastPart = !segment || !segment.parts || partIndex + 1 === segment.parts.length; // if we've buffered to the end of the video, we need to call endOfStream\n            // so that MediaSources can trigger the `ended` event when it runs out of\n            // buffered data instead of waiting for me\n\n            return playlist.endList && this.mediaSource_.readyState === 'open' && appendedLastSegment && appendedLastPart;\n        }\n        /**\n         * Determines what request should be made given current segment loader state.\n         *\n         * @return {Object} a request object that describes the segment/part to load\n         */\n\n        chooseNextRequest_() {\n            const buffered = this.buffered_();\n            const bufferedEnd = lastBufferedEnd(buffered) || 0;\n            const bufferedTime = timeAheadOf(buffered, this.currentTime_());\n            const preloaded = !this.hasPlayed_() && bufferedTime >= 1;\n            const haveEnoughBuffer = bufferedTime >= this.goalBufferLength_();\n            const segments = this.playlist_.segments; // return no segment if:\n            // 1. we don't have segments\n            // 2. The video has not yet played and we already downloaded a segment\n            // 3. we already have enough buffered time\n\n            if (!segments.length || preloaded || haveEnoughBuffer) {\n                return null;\n            }\n            this.syncPoint_ = this.syncPoint_ || this.syncController_.getSyncPoint(this.playlist_, this.duration_(), this.currentTimeline_, this.currentTime_());\n            const next = {\n                partIndex: null,\n                mediaIndex: null,\n                startOfSegment: null,\n                playlist: this.playlist_,\n                isSyncRequest: Boolean(!this.syncPoint_)\n            };\n            if (next.isSyncRequest) {\n                next.mediaIndex = getSyncSegmentCandidate(this.currentTimeline_, segments, bufferedEnd);\n            } else if (this.mediaIndex !== null) {\n                const segment = segments[this.mediaIndex];\n                const partIndex = typeof this.partIndex === 'number' ? this.partIndex : -1;\n                next.startOfSegment = segment.end ? segment.end : bufferedEnd;\n                if (segment.parts && segment.parts[partIndex + 1]) {\n                    next.mediaIndex = this.mediaIndex;\n                    next.partIndex = partIndex + 1;\n                } else {\n                    next.mediaIndex = this.mediaIndex + 1;\n                }\n            } else {\n                // Find the segment containing the end of the buffer or current time.\n                const {\n                    segmentIndex,\n                    startTime,\n                    partIndex\n                } = Playlist.getMediaInfoForTime({\n                    exactManifestTimings: this.exactManifestTimings,\n                    playlist: this.playlist_,\n                    currentTime: this.fetchAtBuffer_ ? bufferedEnd : this.currentTime_(),\n                    startingPartIndex: this.syncPoint_.partIndex,\n                    startingSegmentIndex: this.syncPoint_.segmentIndex,\n                    startTime: this.syncPoint_.time\n                });\n                next.getMediaInfoForTime = this.fetchAtBuffer_ ? `bufferedEnd ${bufferedEnd}` : `currentTime ${this.currentTime_()}`;\n                next.mediaIndex = segmentIndex;\n                next.startOfSegment = startTime;\n                next.partIndex = partIndex;\n            }\n            const nextSegment = segments[next.mediaIndex];\n            let nextPart = nextSegment && typeof next.partIndex === 'number' && nextSegment.parts && nextSegment.parts[next.partIndex]; // if the next segment index is invalid or\n            // the next partIndex is invalid do not choose a next segment.\n\n            if (!nextSegment || typeof next.partIndex === 'number' && !nextPart) {\n                return null;\n            } // if the next segment has parts, and we don't have a partIndex.\n            // Set partIndex to 0\n\n            if (typeof next.partIndex !== 'number' && nextSegment.parts) {\n                next.partIndex = 0;\n                nextPart = nextSegment.parts[0];\n            } // if we have no buffered data then we need to make sure\n            // that the next part we append is \"independent\" if possible.\n            // So we check if the previous part is independent, and request\n            // it if it is.\n\n            if (!bufferedTime && nextPart && !nextPart.independent) {\n                if (next.partIndex === 0) {\n                    const lastSegment = segments[next.mediaIndex - 1];\n                    const lastSegmentLastPart = lastSegment.parts && lastSegment.parts.length && lastSegment.parts[lastSegment.parts.length - 1];\n                    if (lastSegmentLastPart && lastSegmentLastPart.independent) {\n                        next.mediaIndex -= 1;\n                        next.partIndex = lastSegment.parts.length - 1;\n                        next.independent = 'previous segment';\n                    }\n                } else if (nextSegment.parts[next.partIndex - 1].independent) {\n                    next.partIndex -= 1;\n                    next.independent = 'previous part';\n                }\n            }\n            const ended = this.mediaSource_ && this.mediaSource_.readyState === 'ended'; // do not choose a next segment if all of the following:\n            // 1. this is the last segment in the playlist\n            // 2. end of stream has been called on the media source already\n            // 3. the player is not seeking\n\n            if (next.mediaIndex >= segments.length - 1 && ended && !this.seeking_()) {\n                return null;\n            }\n            return this.generateSegmentInfo_(next);\n        }\n        generateSegmentInfo_(options) {\n            const {\n                independent,\n                playlist,\n                mediaIndex,\n                startOfSegment,\n                isSyncRequest,\n                partIndex,\n                forceTimestampOffset,\n                getMediaInfoForTime\n            } = options;\n            const segment = playlist.segments[mediaIndex];\n            const part = typeof partIndex === 'number' && segment.parts[partIndex];\n            const segmentInfo = {\n                requestId: 'segment-loader-' + Math.random(),\n                // resolve the segment URL relative to the playlist\n                uri: part && part.resolvedUri || segment.resolvedUri,\n                // the segment's mediaIndex at the time it was requested\n                mediaIndex,\n                partIndex: part ? partIndex : null,\n                // whether or not to update the SegmentLoader's state with this\n                // segment's mediaIndex\n                isSyncRequest,\n                startOfSegment,\n                // the segment's playlist\n                playlist,\n                // unencrypted bytes of the segment\n                bytes: null,\n                // when a key is defined for this segment, the encrypted bytes\n                encryptedBytes: null,\n                // The target timestampOffset for this segment when we append it\n                // to the source buffer\n                timestampOffset: null,\n                // The timeline that the segment is in\n                timeline: segment.timeline,\n                // The expected duration of the segment in seconds\n                duration: part && part.duration || segment.duration,\n                // retain the segment in case the playlist updates while doing an async process\n                segment,\n                part,\n                byteLength: 0,\n                transmuxer: this.transmuxer_,\n                // type of getMediaInfoForTime that was used to get this segment\n                getMediaInfoForTime,\n                independent\n            };\n            const overrideCheck = typeof forceTimestampOffset !== 'undefined' ? forceTimestampOffset : this.isPendingTimestampOffset_;\n            segmentInfo.timestampOffset = this.timestampOffsetForSegment_({\n                segmentTimeline: segment.timeline,\n                currentTimeline: this.currentTimeline_,\n                startOfSegment,\n                buffered: this.buffered_(),\n                overrideCheck\n            });\n            const audioBufferedEnd = lastBufferedEnd(this.sourceUpdater_.audioBuffered());\n            if (typeof audioBufferedEnd === 'number') {\n                // since the transmuxer is using the actual timing values, but the buffer is\n                // adjusted by the timestamp offset, we must adjust the value here\n                segmentInfo.audioAppendStart = audioBufferedEnd - this.sourceUpdater_.audioTimestampOffset();\n            }\n            if (this.sourceUpdater_.videoBuffered().length) {\n                segmentInfo.gopsToAlignWith = gopsSafeToAlignWith(this.gopBuffer_,\n                    // since the transmuxer is using the actual timing values, but the time is\n                    // adjusted by the timestmap offset, we must adjust the value here\n                    this.currentTime_() - this.sourceUpdater_.videoTimestampOffset(), this.timeMapping_);\n            }\n            return segmentInfo;\n        } // get the timestampoffset for a segment,\n        // added so that vtt segment loader can override and prevent\n        // adding timestamp offsets.\n\n        timestampOffsetForSegment_(options) {\n            return timestampOffsetForSegment(options);\n        }\n        /**\n         * Determines if the network has enough bandwidth to complete the current segment\n         * request in a timely manner. If not, the request will be aborted early and bandwidth\n         * updated to trigger a playlist switch.\n         *\n         * @param {Object} stats\n         *        Object containing stats about the request timing and size\n         * @private\n         */\n\n        earlyAbortWhenNeeded_(stats) {\n            if (this.vhs_.tech_.paused() ||\n                // Don't abort if the current playlist is on the lowestEnabledRendition\n                // TODO: Replace using timeout with a boolean indicating whether this playlist is\n                //       the lowestEnabledRendition.\n                !this.xhrOptions_.timeout ||\n                // Don't abort if we have no bandwidth information to estimate segment sizes\n                !this.playlist_.attributes.BANDWIDTH) {\n                return;\n            } // Wait at least 1 second since the first byte of data has been received before\n            // using the calculated bandwidth from the progress event to allow the bitrate\n            // to stabilize\n\n            if (Date.now() - (stats.firstBytesReceivedAt || Date.now()) < 1000) {\n                return;\n            }\n            const currentTime = this.currentTime_();\n            const measuredBandwidth = stats.bandwidth;\n            const segmentDuration = this.pendingSegment_.duration;\n            const requestTimeRemaining = Playlist.estimateSegmentRequestTime(segmentDuration, measuredBandwidth, this.playlist_, stats.bytesReceived); // Subtract 1 from the timeUntilRebuffer so we still consider an early abort\n            // if we are only left with less than 1 second when the request completes.\n            // A negative timeUntilRebuffering indicates we are already rebuffering\n\n            const timeUntilRebuffer$1 = timeUntilRebuffer(this.buffered_(), currentTime, this.vhs_.tech_.playbackRate()) - 1; // Only consider aborting early if the estimated time to finish the download\n            // is larger than the estimated time until the player runs out of forward buffer\n\n            if (requestTimeRemaining <= timeUntilRebuffer$1) {\n                return;\n            }\n            const switchCandidate = minRebufferMaxBandwidthSelector({\n                main: this.vhs_.playlists.main,\n                currentTime,\n                bandwidth: measuredBandwidth,\n                duration: this.duration_(),\n                segmentDuration,\n                timeUntilRebuffer: timeUntilRebuffer$1,\n                currentTimeline: this.currentTimeline_,\n                syncController: this.syncController_\n            });\n            if (!switchCandidate) {\n                return;\n            }\n            const rebufferingImpact = requestTimeRemaining - timeUntilRebuffer$1;\n            const timeSavedBySwitching = rebufferingImpact - switchCandidate.rebufferingImpact;\n            let minimumTimeSaving = 0.5; // If we are already rebuffering, increase the amount of variance we add to the\n            // potential round trip time of the new request so that we are not too aggressive\n            // with switching to a playlist that might save us a fraction of a second.\n\n            if (timeUntilRebuffer$1 <= TIME_FUDGE_FACTOR) {\n                minimumTimeSaving = 1;\n            }\n            if (!switchCandidate.playlist || switchCandidate.playlist.uri === this.playlist_.uri || timeSavedBySwitching < minimumTimeSaving) {\n                return;\n            } // set the bandwidth to that of the desired playlist being sure to scale by\n            // BANDWIDTH_VARIANCE and add one so the playlist selector does not exclude it\n            // don't trigger a bandwidthupdate as the bandwidth is artifial\n\n            this.bandwidth = switchCandidate.playlist.attributes.BANDWIDTH * Config.BANDWIDTH_VARIANCE + 1;\n            this.trigger('earlyabort');\n        }\n        handleAbort_(segmentInfo) {\n            this.logger_(`Aborting ${segmentInfoString(segmentInfo)}`);\n            this.mediaRequestsAborted += 1;\n        }\n        /**\n         * XHR `progress` event handler\n         *\n         * @param {Event}\n         *        The XHR `progress` event\n         * @param {Object} simpleSegment\n         *        A simplified segment object copy\n         * @private\n         */\n\n        handleProgress_(event, simpleSegment) {\n            this.earlyAbortWhenNeeded_(simpleSegment.stats);\n            if (this.checkForAbort_(simpleSegment.requestId)) {\n                return;\n            }\n            this.trigger('progress');\n        }\n        handleTrackInfo_(simpleSegment, trackInfo) {\n            this.earlyAbortWhenNeeded_(simpleSegment.stats);\n            if (this.checkForAbort_(simpleSegment.requestId)) {\n                return;\n            }\n            if (this.checkForIllegalMediaSwitch(trackInfo)) {\n                return;\n            }\n            trackInfo = trackInfo || {}; // When we have track info, determine what media types this loader is dealing with.\n            // Guard against cases where we're not getting track info at all until we are\n            // certain that all streams will provide it.\n\n            if (!shallowEqual(this.currentMediaInfo_, trackInfo)) {\n                this.appendInitSegment_ = {\n                    audio: true,\n                    video: true\n                };\n                this.startingMediaInfo_ = trackInfo;\n                this.currentMediaInfo_ = trackInfo;\n                this.logger_('trackinfo update', trackInfo);\n                this.trigger('trackinfo');\n            } // trackinfo may cause an abort if the trackinfo\n            // causes a codec change to an unsupported codec.\n\n            if (this.checkForAbort_(simpleSegment.requestId)) {\n                return;\n            } // set trackinfo on the pending segment so that\n            // it can append.\n\n            this.pendingSegment_.trackInfo = trackInfo; // check if any calls were waiting on the track info\n\n            if (this.hasEnoughInfoToAppend_()) {\n                this.processCallQueue_();\n            }\n        }\n        handleTimingInfo_(simpleSegment, mediaType, timeType, time) {\n            this.earlyAbortWhenNeeded_(simpleSegment.stats);\n            if (this.checkForAbort_(simpleSegment.requestId)) {\n                return;\n            }\n            const segmentInfo = this.pendingSegment_;\n            const timingInfoProperty = timingInfoPropertyForMedia(mediaType);\n            segmentInfo[timingInfoProperty] = segmentInfo[timingInfoProperty] || {};\n            segmentInfo[timingInfoProperty][timeType] = time;\n            this.logger_(`timinginfo: ${mediaType} - ${timeType} - ${time}`); // check if any calls were waiting on the timing info\n\n            if (this.hasEnoughInfoToAppend_()) {\n                this.processCallQueue_();\n            }\n        }\n        handleCaptions_(simpleSegment, captionData) {\n            this.earlyAbortWhenNeeded_(simpleSegment.stats);\n            if (this.checkForAbort_(simpleSegment.requestId)) {\n                return;\n            } // This could only happen with fmp4 segments, but\n            // should still not happen in general\n\n            if (captionData.length === 0) {\n                this.logger_('SegmentLoader received no captions from a caption event');\n                return;\n            }\n            const segmentInfo = this.pendingSegment_; // Wait until we have some video data so that caption timing\n            // can be adjusted by the timestamp offset\n\n            if (!segmentInfo.hasAppendedData_) {\n                this.metadataQueue_.caption.push(this.handleCaptions_.bind(this, simpleSegment, captionData));\n                return;\n            }\n            const timestampOffset = this.sourceUpdater_.videoTimestampOffset() === null ? this.sourceUpdater_.audioTimestampOffset() : this.sourceUpdater_.videoTimestampOffset();\n            const captionTracks = {}; // get total start/end and captions for each track/stream\n\n            captionData.forEach(caption => {\n                // caption.stream is actually a track name...\n                // set to the existing values in tracks or default values\n                captionTracks[caption.stream] = captionTracks[caption.stream] || {\n                    // Infinity, as any other value will be less than this\n                    startTime: Infinity,\n                    captions: [],\n                    // 0 as an other value will be more than this\n                    endTime: 0\n                };\n                const captionTrack = captionTracks[caption.stream];\n                captionTrack.startTime = Math.min(captionTrack.startTime, caption.startTime + timestampOffset);\n                captionTrack.endTime = Math.max(captionTrack.endTime, caption.endTime + timestampOffset);\n                captionTrack.captions.push(caption);\n            });\n            Object.keys(captionTracks).forEach(trackName => {\n                const {\n                    startTime,\n                    endTime,\n                    captions\n                } = captionTracks[trackName];\n                const inbandTextTracks = this.inbandTextTracks_;\n                this.logger_(`adding cues from ${startTime} -> ${endTime} for ${trackName}`);\n                createCaptionsTrackIfNotExists(inbandTextTracks, this.vhs_.tech_, trackName); // clear out any cues that start and end at the same time period for the same track.\n                // We do this because a rendition change that also changes the timescale for captions\n                // will result in captions being re-parsed for certain segments. If we add them again\n                // without clearing we will have two of the same captions visible.\n\n                removeCuesFromTrack(startTime, endTime, inbandTextTracks[trackName]);\n                addCaptionData({\n                    captionArray: captions,\n                    inbandTextTracks,\n                    timestampOffset\n                });\n            }); // Reset stored captions since we added parsed\n            // captions to a text track at this point\n\n            if (this.transmuxer_) {\n                this.transmuxer_.postMessage({\n                    action: 'clearParsedMp4Captions'\n                });\n            }\n        }\n        handleId3_(simpleSegment, id3Frames, dispatchType) {\n            this.earlyAbortWhenNeeded_(simpleSegment.stats);\n            if (this.checkForAbort_(simpleSegment.requestId)) {\n                return;\n            }\n            const segmentInfo = this.pendingSegment_; // we need to have appended data in order for the timestamp offset to be set\n\n            if (!segmentInfo.hasAppendedData_) {\n                this.metadataQueue_.id3.push(this.handleId3_.bind(this, simpleSegment, id3Frames, dispatchType));\n                return;\n            }\n            const timestampOffset = this.sourceUpdater_.videoTimestampOffset() === null ? this.sourceUpdater_.audioTimestampOffset() : this.sourceUpdater_.videoTimestampOffset(); // There's potentially an issue where we could double add metadata if there's a muxed\n            // audio/video source with a metadata track, and an alt audio with a metadata track.\n            // However, this probably won't happen, and if it does it can be handled then.\n\n            createMetadataTrackIfNotExists(this.inbandTextTracks_, dispatchType, this.vhs_.tech_);\n            addMetadata({\n                inbandTextTracks: this.inbandTextTracks_,\n                metadataArray: id3Frames,\n                timestampOffset,\n                videoDuration: this.duration_()\n            });\n        }\n        processMetadataQueue_() {\n            this.metadataQueue_.id3.forEach(fn => fn());\n            this.metadataQueue_.caption.forEach(fn => fn());\n            this.metadataQueue_.id3 = [];\n            this.metadataQueue_.caption = [];\n        }\n        processCallQueue_() {\n            const callQueue = this.callQueue_; // Clear out the queue before the queued functions are run, since some of the\n            // functions may check the length of the load queue and default to pushing themselves\n            // back onto the queue.\n\n            this.callQueue_ = [];\n            callQueue.forEach(fun => fun());\n        }\n        processLoadQueue_() {\n            const loadQueue = this.loadQueue_; // Clear out the queue before the queued functions are run, since some of the\n            // functions may check the length of the load queue and default to pushing themselves\n            // back onto the queue.\n\n            this.loadQueue_ = [];\n            loadQueue.forEach(fun => fun());\n        }\n        /**\n         * Determines whether the loader has enough info to load the next segment.\n         *\n         * @return {boolean}\n         *         Whether or not the loader has enough info to load the next segment\n         */\n\n        hasEnoughInfoToLoad_() {\n            // Since primary timing goes by video, only the audio loader potentially needs to wait\n            // to load.\n            if (this.loaderType_ !== 'audio') {\n                return true;\n            }\n            const segmentInfo = this.pendingSegment_; // A fill buffer must have already run to establish a pending segment before there's\n            // enough info to load.\n\n            if (!segmentInfo) {\n                return false;\n            } // The first segment can and should be loaded immediately so that source buffers are\n            // created together (before appending). Source buffer creation uses the presence of\n            // audio and video data to determine whether to create audio/video source buffers, and\n            // uses processed (transmuxed or parsed) media to determine the types required.\n\n            if (!this.getCurrentMediaInfo_()) {\n                return true;\n            }\n            if (\n                // Technically, instead of waiting to load a segment on timeline changes, a segment\n                // can be requested and downloaded and only wait before it is transmuxed or parsed.\n                // But in practice, there are a few reasons why it is better to wait until a loader\n                // is ready to append that segment before requesting and downloading:\n                //\n                // 1. Because audio and main loaders cross discontinuities together, if this loader\n                //    is waiting for the other to catch up, then instead of requesting another\n                //    segment and using up more bandwidth, by not yet loading, more bandwidth is\n                //    allotted to the loader currently behind.\n                // 2. media-segment-request doesn't have to have logic to consider whether a segment\n                // is ready to be processed or not, isolating the queueing behavior to the loader.\n                // 3. The audio loader bases some of its segment properties on timing information\n                //    provided by the main loader, meaning that, if the logic for waiting on\n                //    processing was in media-segment-request, then it would also need to know how\n                //    to re-generate the segment information after the main loader caught up.\n                shouldWaitForTimelineChange({\n                    timelineChangeController: this.timelineChangeController_,\n                    currentTimeline: this.currentTimeline_,\n                    segmentTimeline: segmentInfo.timeline,\n                    loaderType: this.loaderType_,\n                    audioDisabled: this.audioDisabled_\n                })) {\n                return false;\n            }\n            return true;\n        }\n        getCurrentMediaInfo_(segmentInfo = this.pendingSegment_) {\n            return segmentInfo && segmentInfo.trackInfo || this.currentMediaInfo_;\n        }\n        getMediaInfo_(segmentInfo = this.pendingSegment_) {\n            return this.getCurrentMediaInfo_(segmentInfo) || this.startingMediaInfo_;\n        }\n        getPendingSegmentPlaylist() {\n            return this.pendingSegment_ ? this.pendingSegment_.playlist : null;\n        }\n        hasEnoughInfoToAppend_() {\n            if (!this.sourceUpdater_.ready()) {\n                return false;\n            } // If content needs to be removed or the loader is waiting on an append reattempt,\n            // then no additional content should be appended until the prior append is resolved.\n\n            if (this.waitingOnRemove_ || this.quotaExceededErrorRetryTimeout_) {\n                return false;\n            }\n            const segmentInfo = this.pendingSegment_;\n            const trackInfo = this.getCurrentMediaInfo_(); // no segment to append any data for or\n            // we do not have information on this specific\n            // segment yet\n\n            if (!segmentInfo || !trackInfo) {\n                return false;\n            }\n            const {\n                hasAudio,\n                hasVideo,\n                isMuxed\n            } = trackInfo;\n            if (hasVideo && !segmentInfo.videoTimingInfo) {\n                return false;\n            } // muxed content only relies on video timing information for now.\n\n            if (hasAudio && !this.audioDisabled_ && !isMuxed && !segmentInfo.audioTimingInfo) {\n                return false;\n            }\n            if (shouldWaitForTimelineChange({\n                timelineChangeController: this.timelineChangeController_,\n                currentTimeline: this.currentTimeline_,\n                segmentTimeline: segmentInfo.timeline,\n                loaderType: this.loaderType_,\n                audioDisabled: this.audioDisabled_\n            })) {\n                return false;\n            }\n            return true;\n        }\n        handleData_(simpleSegment, result) {\n            this.earlyAbortWhenNeeded_(simpleSegment.stats);\n            if (this.checkForAbort_(simpleSegment.requestId)) {\n                return;\n            } // If there's anything in the call queue, then this data came later and should be\n            // executed after the calls currently queued.\n\n            if (this.callQueue_.length || !this.hasEnoughInfoToAppend_()) {\n                this.callQueue_.push(this.handleData_.bind(this, simpleSegment, result));\n                return;\n            }\n            const segmentInfo = this.pendingSegment_; // update the time mapping so we can translate from display time to media time\n\n            this.setTimeMapping_(segmentInfo.timeline); // for tracking overall stats\n\n            this.updateMediaSecondsLoaded_(segmentInfo.part || segmentInfo.segment); // Note that the state isn't changed from loading to appending. This is because abort\n            // logic may change behavior depending on the state, and changing state too early may\n            // inflate our estimates of bandwidth. In the future this should be re-examined to\n            // note more granular states.\n            // don't process and append data if the mediaSource is closed\n\n            if (this.mediaSource_.readyState === 'closed') {\n                return;\n            } // if this request included an initialization segment, save that data\n            // to the initSegment cache\n\n            if (simpleSegment.map) {\n                simpleSegment.map = this.initSegmentForMap(simpleSegment.map, true); // move over init segment properties to media request\n\n                segmentInfo.segment.map = simpleSegment.map;\n            } // if this request included a segment key, save that data in the cache\n\n            if (simpleSegment.key) {\n                this.segmentKey(simpleSegment.key, true);\n            }\n            segmentInfo.isFmp4 = simpleSegment.isFmp4;\n            segmentInfo.timingInfo = segmentInfo.timingInfo || {};\n            if (segmentInfo.isFmp4) {\n                this.trigger('fmp4');\n                segmentInfo.timingInfo.start = segmentInfo[timingInfoPropertyForMedia(result.type)].start;\n            } else {\n                const trackInfo = this.getCurrentMediaInfo_();\n                const useVideoTimingInfo = this.loaderType_ === 'main' && trackInfo && trackInfo.hasVideo;\n                let firstVideoFrameTimeForData;\n                if (useVideoTimingInfo) {\n                    firstVideoFrameTimeForData = segmentInfo.videoTimingInfo.start;\n                } // Segment loader knows more about segment timing than the transmuxer (in certain\n                // aspects), so make any changes required for a more accurate start time.\n                // Don't set the end time yet, as the segment may not be finished processing.\n\n                segmentInfo.timingInfo.start = this.trueSegmentStart_({\n                    currentStart: segmentInfo.timingInfo.start,\n                    playlist: segmentInfo.playlist,\n                    mediaIndex: segmentInfo.mediaIndex,\n                    currentVideoTimestampOffset: this.sourceUpdater_.videoTimestampOffset(),\n                    useVideoTimingInfo,\n                    firstVideoFrameTimeForData,\n                    videoTimingInfo: segmentInfo.videoTimingInfo,\n                    audioTimingInfo: segmentInfo.audioTimingInfo\n                });\n            } // Init segments for audio and video only need to be appended in certain cases. Now\n            // that data is about to be appended, we can check the final cases to determine\n            // whether we should append an init segment.\n\n            this.updateAppendInitSegmentStatus(segmentInfo, result.type); // Timestamp offset should be updated once we get new data and have its timing info,\n            // as we use the start of the segment to offset the best guess (playlist provided)\n            // timestamp offset.\n\n            this.updateSourceBufferTimestampOffset_(segmentInfo); // if this is a sync request we need to determine whether it should\n            // be appended or not.\n\n            if (segmentInfo.isSyncRequest) {\n                // first save/update our timing info for this segment.\n                // this is what allows us to choose an accurate segment\n                // and the main reason we make a sync request.\n                this.updateTimingInfoEnd_(segmentInfo);\n                this.syncController_.saveSegmentTimingInfo({\n                    segmentInfo,\n                    shouldSaveTimelineMapping: this.loaderType_ === 'main'\n                });\n                const next = this.chooseNextRequest_(); // If the sync request isn't the segment that would be requested next\n                // after taking into account its timing info, do not append it.\n\n                if (next.mediaIndex !== segmentInfo.mediaIndex || next.partIndex !== segmentInfo.partIndex) {\n                    this.logger_('sync segment was incorrect, not appending');\n                    return;\n                } // otherwise append it like any other segment as our guess was correct.\n\n                this.logger_('sync segment was correct, appending');\n            } // Save some state so that in the future anything waiting on first append (and/or\n            // timestamp offset(s)) can process immediately. While the extra state isn't optimal,\n            // we need some notion of whether the timestamp offset or other relevant information\n            // has had a chance to be set.\n\n            segmentInfo.hasAppendedData_ = true; // Now that the timestamp offset should be set, we can append any waiting ID3 tags.\n\n            this.processMetadataQueue_();\n            this.appendData_(segmentInfo, result);\n        }\n        updateAppendInitSegmentStatus(segmentInfo, type) {\n            // alt audio doesn't manage timestamp offset\n            if (this.loaderType_ === 'main' && typeof segmentInfo.timestampOffset === 'number' &&\n                // in the case that we're handling partial data, we don't want to append an init\n                // segment for each chunk\n                !segmentInfo.changedTimestampOffset) {\n                // if the timestamp offset changed, the timeline may have changed, so we have to re-\n                // append init segments\n                this.appendInitSegment_ = {\n                    audio: true,\n                    video: true\n                };\n            }\n            if (this.playlistOfLastInitSegment_[type] !== segmentInfo.playlist) {\n                // make sure we append init segment on playlist changes, in case the media config\n                // changed\n                this.appendInitSegment_[type] = true;\n            }\n        }\n        getInitSegmentAndUpdateState_({\n                                          type,\n                                          initSegment,\n                                          map,\n                                          playlist\n                                      }) {\n            // \"The EXT-X-MAP tag specifies how to obtain the Media Initialization Section\n            // (Section 3) required to parse the applicable Media Segments.  It applies to every\n            // Media Segment that appears after it in the Playlist until the next EXT-X-MAP tag\n            // or until the end of the playlist.\"\n            // https://tools.ietf.org/html/draft-pantos-http-live-streaming-23#section-4.3.2.5\n            if (map) {\n                const id = initSegmentId(map);\n                if (this.activeInitSegmentId_ === id) {\n                    // don't need to re-append the init segment if the ID matches\n                    return null;\n                } // a map-specified init segment takes priority over any transmuxed (or otherwise\n                // obtained) init segment\n                //\n                // this also caches the init segment for later use\n\n                initSegment = this.initSegmentForMap(map, true).bytes;\n                this.activeInitSegmentId_ = id;\n            } // We used to always prepend init segments for video, however, that shouldn't be\n            // necessary. Instead, we should only append on changes, similar to what we've always\n            // done for audio. This is more important (though may not be that important) for\n            // frame-by-frame appending for LHLS, simply because of the increased quantity of\n            // appends.\n\n            if (initSegment && this.appendInitSegment_[type]) {\n                // Make sure we track the playlist that we last used for the init segment, so that\n                // we can re-append the init segment in the event that we get data from a new\n                // playlist. Discontinuities and track changes are handled in other sections.\n                this.playlistOfLastInitSegment_[type] = playlist; // Disable future init segment appends for this type. Until a change is necessary.\n\n                this.appendInitSegment_[type] = false; // we need to clear out the fmp4 active init segment id, since\n                // we are appending the muxer init segment\n\n                this.activeInitSegmentId_ = null;\n                return initSegment;\n            }\n            return null;\n        }\n        handleQuotaExceededError_({\n                                      segmentInfo,\n                                      type,\n                                      bytes\n                                  }, error) {\n            const audioBuffered = this.sourceUpdater_.audioBuffered();\n            const videoBuffered = this.sourceUpdater_.videoBuffered(); // For now we're ignoring any notion of gaps in the buffer, but they, in theory,\n            // should be cleared out during the buffer removals. However, log in case it helps\n            // debug.\n\n            if (audioBuffered.length > 1) {\n                this.logger_('On QUOTA_EXCEEDED_ERR, found gaps in the audio buffer: ' + timeRangesToArray(audioBuffered).join(', '));\n            }\n            if (videoBuffered.length > 1) {\n                this.logger_('On QUOTA_EXCEEDED_ERR, found gaps in the video buffer: ' + timeRangesToArray(videoBuffered).join(', '));\n            }\n            const audioBufferStart = audioBuffered.length ? audioBuffered.start(0) : 0;\n            const audioBufferEnd = audioBuffered.length ? audioBuffered.end(audioBuffered.length - 1) : 0;\n            const videoBufferStart = videoBuffered.length ? videoBuffered.start(0) : 0;\n            const videoBufferEnd = videoBuffered.length ? videoBuffered.end(videoBuffered.length - 1) : 0;\n            if (audioBufferEnd - audioBufferStart <= MIN_BACK_BUFFER && videoBufferEnd - videoBufferStart <= MIN_BACK_BUFFER) {\n                // Can't remove enough buffer to make room for new segment (or the browser doesn't\n                // allow for appends of segments this size). In the future, it may be possible to\n                // split up the segment and append in pieces, but for now, error out this playlist\n                // in an attempt to switch to a more manageable rendition.\n                this.logger_('On QUOTA_EXCEEDED_ERR, single segment too large to append to ' + 'buffer, triggering an error. ' + `Appended byte length: ${bytes.byteLength}, ` + `audio buffer: ${timeRangesToArray(audioBuffered).join(', ')}, ` + `video buffer: ${timeRangesToArray(videoBuffered).join(', ')}, `);\n                this.error({\n                    message: 'Quota exceeded error with append of a single segment of content',\n                    excludeUntil: Infinity\n                });\n                this.trigger('error');\n                return;\n            } // To try to resolve the quota exceeded error, clear back buffer and retry. This means\n            // that the segment-loader should block on future events until this one is handled, so\n            // that it doesn't keep moving onto further segments. Adding the call to the call\n            // queue will prevent further appends until waitingOnRemove_ and\n            // quotaExceededErrorRetryTimeout_ are cleared.\n            //\n            // Note that this will only block the current loader. In the case of demuxed content,\n            // the other load may keep filling as fast as possible. In practice, this should be\n            // OK, as it is a rare case when either audio has a high enough bitrate to fill up a\n            // source buffer, or video fills without enough room for audio to append (and without\n            // the availability of clearing out seconds of back buffer to make room for audio).\n            // But it might still be good to handle this case in the future as a TODO.\n\n            this.waitingOnRemove_ = true;\n            this.callQueue_.push(this.appendToSourceBuffer_.bind(this, {\n                segmentInfo,\n                type,\n                bytes\n            }));\n            const currentTime = this.currentTime_(); // Try to remove as much audio and video as possible to make room for new content\n            // before retrying.\n\n            const timeToRemoveUntil = currentTime - MIN_BACK_BUFFER;\n            this.logger_(`On QUOTA_EXCEEDED_ERR, removing audio/video from 0 to ${timeToRemoveUntil}`);\n            this.remove(0, timeToRemoveUntil, () => {\n                this.logger_(`On QUOTA_EXCEEDED_ERR, retrying append in ${MIN_BACK_BUFFER}s`);\n                this.waitingOnRemove_ = false; // wait the length of time alotted in the back buffer to prevent wasted\n                // attempts (since we can't clear less than the minimum)\n\n                this.quotaExceededErrorRetryTimeout_ = window.setTimeout(() => {\n                    this.logger_('On QUOTA_EXCEEDED_ERR, re-processing call queue');\n                    this.quotaExceededErrorRetryTimeout_ = null;\n                    this.processCallQueue_();\n                }, MIN_BACK_BUFFER * 1000);\n            }, true);\n        }\n        handleAppendError_({\n                               segmentInfo,\n                               type,\n                               bytes\n                           }, error) {\n            // if there's no error, nothing to do\n            if (!error) {\n                return;\n            }\n            if (error.code === QUOTA_EXCEEDED_ERR) {\n                this.handleQuotaExceededError_({\n                    segmentInfo,\n                    type,\n                    bytes\n                }); // A quota exceeded error should be recoverable with a future re-append, so no need\n                // to trigger an append error.\n\n                return;\n            }\n            this.logger_('Received non QUOTA_EXCEEDED_ERR on append', error);\n            this.error(`${type} append of ${bytes.length}b failed for segment ` + `#${segmentInfo.mediaIndex} in playlist ${segmentInfo.playlist.id}`); // If an append errors, we often can't recover.\n            // (see https://w3c.github.io/media-source/#sourcebuffer-append-error).\n            //\n            // Trigger a special error so that it can be handled separately from normal,\n            // recoverable errors.\n\n            this.trigger('appenderror');\n        }\n        appendToSourceBuffer_({\n                                  segmentInfo,\n                                  type,\n                                  initSegment,\n                                  data,\n                                  bytes\n                              }) {\n            // If this is a re-append, bytes were already created and don't need to be recreated\n            if (!bytes) {\n                const segments = [data];\n                let byteLength = data.byteLength;\n                if (initSegment) {\n                    // if the media initialization segment is changing, append it before the content\n                    // segment\n                    segments.unshift(initSegment);\n                    byteLength += initSegment.byteLength;\n                } // Technically we should be OK appending the init segment separately, however, we\n                // haven't yet tested that, and prepending is how we have always done things.\n\n                bytes = concatSegments({\n                    bytes: byteLength,\n                    segments\n                });\n            }\n            this.sourceUpdater_.appendBuffer({\n                segmentInfo,\n                type,\n                bytes\n            }, this.handleAppendError_.bind(this, {\n                segmentInfo,\n                type,\n                bytes\n            }));\n        }\n        handleSegmentTimingInfo_(type, requestId, segmentTimingInfo) {\n            if (!this.pendingSegment_ || requestId !== this.pendingSegment_.requestId) {\n                return;\n            }\n            const segment = this.pendingSegment_.segment;\n            const timingInfoProperty = `${type}TimingInfo`;\n            if (!segment[timingInfoProperty]) {\n                segment[timingInfoProperty] = {};\n            }\n            segment[timingInfoProperty].transmuxerPrependedSeconds = segmentTimingInfo.prependedContentDuration || 0;\n            segment[timingInfoProperty].transmuxedPresentationStart = segmentTimingInfo.start.presentation;\n            segment[timingInfoProperty].transmuxedDecodeStart = segmentTimingInfo.start.decode;\n            segment[timingInfoProperty].transmuxedPresentationEnd = segmentTimingInfo.end.presentation;\n            segment[timingInfoProperty].transmuxedDecodeEnd = segmentTimingInfo.end.decode; // mainly used as a reference for debugging\n\n            segment[timingInfoProperty].baseMediaDecodeTime = segmentTimingInfo.baseMediaDecodeTime;\n        }\n        appendData_(segmentInfo, result) {\n            const {\n                type,\n                data\n            } = result;\n            if (!data || !data.byteLength) {\n                return;\n            }\n            if (type === 'audio' && this.audioDisabled_) {\n                return;\n            }\n            const initSegment = this.getInitSegmentAndUpdateState_({\n                type,\n                initSegment: result.initSegment,\n                playlist: segmentInfo.playlist,\n                map: segmentInfo.isFmp4 ? segmentInfo.segment.map : null\n            });\n            this.appendToSourceBuffer_({\n                segmentInfo,\n                type,\n                initSegment,\n                data\n            });\n        }\n        /**\n         * load a specific segment from a request into the buffer\n         *\n         * @private\n         */\n\n        loadSegment_(segmentInfo) {\n            this.state = 'WAITING';\n            this.pendingSegment_ = segmentInfo;\n            this.trimBackBuffer_(segmentInfo);\n            if (typeof segmentInfo.timestampOffset === 'number') {\n                if (this.transmuxer_) {\n                    this.transmuxer_.postMessage({\n                        action: 'clearAllMp4Captions'\n                    });\n                }\n            }\n            if (!this.hasEnoughInfoToLoad_()) {\n                this.loadQueue_.push(() => {\n                    // regenerate the audioAppendStart, timestampOffset, etc as they\n                    // may have changed since this function was added to the queue.\n                    const options = _extends$1({}, segmentInfo, {\n                        forceTimestampOffset: true\n                    });\n                    _extends$1(segmentInfo, this.generateSegmentInfo_(options));\n                    this.isPendingTimestampOffset_ = false;\n                    this.updateTransmuxerAndRequestSegment_(segmentInfo);\n                });\n                return;\n            }\n            this.updateTransmuxerAndRequestSegment_(segmentInfo);\n        }\n        updateTransmuxerAndRequestSegment_(segmentInfo) {\n            // We'll update the source buffer's timestamp offset once we have transmuxed data, but\n            // the transmuxer still needs to be updated before then.\n            //\n            // Even though keepOriginalTimestamps is set to true for the transmuxer, timestamp\n            // offset must be passed to the transmuxer for stream correcting adjustments.\n            if (this.shouldUpdateTransmuxerTimestampOffset_(segmentInfo.timestampOffset)) {\n                this.gopBuffer_.length = 0; // gopsToAlignWith was set before the GOP buffer was cleared\n\n                segmentInfo.gopsToAlignWith = [];\n                this.timeMapping_ = 0; // reset values in the transmuxer since a discontinuity should start fresh\n\n                this.transmuxer_.postMessage({\n                    action: 'reset'\n                });\n                this.transmuxer_.postMessage({\n                    action: 'setTimestampOffset',\n                    timestampOffset: segmentInfo.timestampOffset\n                });\n            }\n            const simpleSegment = this.createSimplifiedSegmentObj_(segmentInfo);\n            const isEndOfStream = this.isEndOfStream_(segmentInfo.mediaIndex, segmentInfo.playlist, segmentInfo.partIndex);\n            const isWalkingForward = this.mediaIndex !== null;\n            const isDiscontinuity = segmentInfo.timeline !== this.currentTimeline_ &&\n                // currentTimeline starts at -1, so we shouldn't end the timeline switching to 0,\n                // the first timeline\n                segmentInfo.timeline > 0;\n            const isEndOfTimeline = isEndOfStream || isWalkingForward && isDiscontinuity;\n            this.logger_(`Requesting ${segmentInfoString(segmentInfo)}`); // If there's an init segment associated with this segment, but it is not cached (identified by a lack of bytes),\n            // then this init segment has never been seen before and should be appended.\n            //\n            // At this point the content type (audio/video or both) is not yet known, but it should be safe to set\n            // both to true and leave the decision of whether to append the init segment to append time.\n\n            if (simpleSegment.map && !simpleSegment.map.bytes) {\n                this.logger_('going to request init segment.');\n                this.appendInitSegment_ = {\n                    video: true,\n                    audio: true\n                };\n            }\n            segmentInfo.abortRequests = mediaSegmentRequest({\n                xhr: this.vhs_.xhr,\n                xhrOptions: this.xhrOptions_,\n                decryptionWorker: this.decrypter_,\n                segment: simpleSegment,\n                abortFn: this.handleAbort_.bind(this, segmentInfo),\n                progressFn: this.handleProgress_.bind(this),\n                trackInfoFn: this.handleTrackInfo_.bind(this),\n                timingInfoFn: this.handleTimingInfo_.bind(this),\n                videoSegmentTimingInfoFn: this.handleSegmentTimingInfo_.bind(this, 'video', segmentInfo.requestId),\n                audioSegmentTimingInfoFn: this.handleSegmentTimingInfo_.bind(this, 'audio', segmentInfo.requestId),\n                captionsFn: this.handleCaptions_.bind(this),\n                isEndOfTimeline,\n                endedTimelineFn: () => {\n                    this.logger_('received endedtimeline callback');\n                },\n                id3Fn: this.handleId3_.bind(this),\n                dataFn: this.handleData_.bind(this),\n                doneFn: this.segmentRequestFinished_.bind(this),\n                onTransmuxerLog: ({\n                                      message,\n                                      level,\n                                      stream\n                                  }) => {\n                    this.logger_(`${segmentInfoString(segmentInfo)} logged from transmuxer stream ${stream} as a ${level}: ${message}`);\n                }\n            });\n        }\n        /**\n         * trim the back buffer so that we don't have too much data\n         * in the source buffer\n         *\n         * @private\n         *\n         * @param {Object} segmentInfo - the current segment\n         */\n\n        trimBackBuffer_(segmentInfo) {\n            const removeToTime = safeBackBufferTrimTime(this.seekable_(), this.currentTime_(), this.playlist_.targetDuration || 10); // Chrome has a hard limit of 150MB of\n            // buffer and a very conservative \"garbage collector\"\n            // We manually clear out the old buffer to ensure\n            // we don't trigger the QuotaExceeded error\n            // on the source buffer during subsequent appends\n\n            if (removeToTime > 0) {\n                this.remove(0, removeToTime);\n            }\n        }\n        /**\n         * created a simplified copy of the segment object with just the\n         * information necessary to perform the XHR and decryption\n         *\n         * @private\n         *\n         * @param {Object} segmentInfo - the current segment\n         * @return {Object} a simplified segment object copy\n         */\n\n        createSimplifiedSegmentObj_(segmentInfo) {\n            const segment = segmentInfo.segment;\n            const part = segmentInfo.part;\n            const simpleSegment = {\n                resolvedUri: part ? part.resolvedUri : segment.resolvedUri,\n                byterange: part ? part.byterange : segment.byterange,\n                requestId: segmentInfo.requestId,\n                transmuxer: segmentInfo.transmuxer,\n                audioAppendStart: segmentInfo.audioAppendStart,\n                gopsToAlignWith: segmentInfo.gopsToAlignWith,\n                part: segmentInfo.part\n            };\n            const previousSegment = segmentInfo.playlist.segments[segmentInfo.mediaIndex - 1];\n            if (previousSegment && previousSegment.timeline === segment.timeline) {\n                // The baseStartTime of a segment is used to handle rollover when probing the TS\n                // segment to retrieve timing information. Since the probe only looks at the media's\n                // times (e.g., PTS and DTS values of the segment), and doesn't consider the\n                // player's time (e.g., player.currentTime()), baseStartTime should reflect the\n                // media time as well. transmuxedDecodeEnd represents the end time of a segment, in\n                // seconds of media time, so should be used here. The previous segment is used since\n                // the end of the previous segment should represent the beginning of the current\n                // segment, so long as they are on the same timeline.\n                if (previousSegment.videoTimingInfo) {\n                    simpleSegment.baseStartTime = previousSegment.videoTimingInfo.transmuxedDecodeEnd;\n                } else if (previousSegment.audioTimingInfo) {\n                    simpleSegment.baseStartTime = previousSegment.audioTimingInfo.transmuxedDecodeEnd;\n                }\n            }\n            if (segment.key) {\n                // if the media sequence is greater than 2^32, the IV will be incorrect\n                // assuming 10s segments, that would be about 1300 years\n                const iv = segment.key.iv || new Uint32Array([0, 0, 0, segmentInfo.mediaIndex + segmentInfo.playlist.mediaSequence]);\n                simpleSegment.key = this.segmentKey(segment.key);\n                simpleSegment.key.iv = iv;\n            }\n            if (segment.map) {\n                simpleSegment.map = this.initSegmentForMap(segment.map);\n            }\n            return simpleSegment;\n        }\n        saveTransferStats_(stats) {\n            // every request counts as a media request even if it has been aborted\n            // or canceled due to a timeout\n            this.mediaRequests += 1;\n            if (stats) {\n                this.mediaBytesTransferred += stats.bytesReceived;\n                this.mediaTransferDuration += stats.roundTripTime;\n            }\n        }\n        saveBandwidthRelatedStats_(duration, stats) {\n            // byteLength will be used for throughput, and should be based on bytes receieved,\n            // which we only know at the end of the request and should reflect total bytes\n            // downloaded rather than just bytes processed from components of the segment\n            this.pendingSegment_.byteLength = stats.bytesReceived;\n            if (duration < MIN_SEGMENT_DURATION_TO_SAVE_STATS) {\n                this.logger_(`Ignoring segment's bandwidth because its duration of ${duration}` + ` is less than the min to record ${MIN_SEGMENT_DURATION_TO_SAVE_STATS}`);\n                return;\n            }\n            this.bandwidth = stats.bandwidth;\n            this.roundTrip = stats.roundTripTime;\n        }\n        handleTimeout_() {\n            // although the VTT segment loader bandwidth isn't really used, it's good to\n            // maintain functinality between segment loaders\n            this.mediaRequestsTimedout += 1;\n            this.bandwidth = 1;\n            this.roundTrip = NaN;\n            this.trigger('bandwidthupdate');\n            this.trigger('timeout');\n        }\n        /**\n         * Handle the callback from the segmentRequest function and set the\n         * associated SegmentLoader state and errors if necessary\n         *\n         * @private\n         */\n\n        segmentRequestFinished_(error, simpleSegment, result) {\n            // TODO handle special cases, e.g., muxed audio/video but only audio in the segment\n            // check the call queue directly since this function doesn't need to deal with any\n            // data, and can continue even if the source buffers are not set up and we didn't get\n            // any data from the segment\n            if (this.callQueue_.length) {\n                this.callQueue_.push(this.segmentRequestFinished_.bind(this, error, simpleSegment, result));\n                return;\n            }\n            this.saveTransferStats_(simpleSegment.stats); // The request was aborted and the SegmentLoader has already been reset\n\n            if (!this.pendingSegment_) {\n                return;\n            } // the request was aborted and the SegmentLoader has already started\n            // another request. this can happen when the timeout for an aborted\n            // request triggers due to a limitation in the XHR library\n            // do not count this as any sort of request or we risk double-counting\n\n            if (simpleSegment.requestId !== this.pendingSegment_.requestId) {\n                return;\n            } // an error occurred from the active pendingSegment_ so reset everything\n\n            if (error) {\n                this.pendingSegment_ = null;\n                this.state = 'READY'; // aborts are not a true error condition and nothing corrective needs to be done\n\n                if (error.code === REQUEST_ERRORS.ABORTED) {\n                    return;\n                }\n                this.pause(); // the error is really just that at least one of the requests timed-out\n                // set the bandwidth to a very low value and trigger an ABR switch to\n                // take emergency action\n\n                if (error.code === REQUEST_ERRORS.TIMEOUT) {\n                    this.handleTimeout_();\n                    return;\n                } // if control-flow has arrived here, then the error is real\n                // emit an error event to exclude the current playlist\n\n                this.mediaRequestsErrored += 1;\n                this.error(error);\n                this.trigger('error');\n                return;\n            }\n            const segmentInfo = this.pendingSegment_; // the response was a success so set any bandwidth stats the request\n            // generated for ABR purposes\n\n            this.saveBandwidthRelatedStats_(segmentInfo.duration, simpleSegment.stats);\n            segmentInfo.endOfAllRequests = simpleSegment.endOfAllRequests;\n            if (result.gopInfo) {\n                this.gopBuffer_ = updateGopBuffer(this.gopBuffer_, result.gopInfo, this.safeAppend_);\n            } // Although we may have already started appending on progress, we shouldn't switch the\n            // state away from loading until we are officially done loading the segment data.\n\n            this.state = 'APPENDING'; // used for testing\n\n            this.trigger('appending');\n            this.waitForAppendsToComplete_(segmentInfo);\n        }\n        setTimeMapping_(timeline) {\n            const timelineMapping = this.syncController_.mappingForTimeline(timeline);\n            if (timelineMapping !== null) {\n                this.timeMapping_ = timelineMapping;\n            }\n        }\n        updateMediaSecondsLoaded_(segment) {\n            if (typeof segment.start === 'number' && typeof segment.end === 'number') {\n                this.mediaSecondsLoaded += segment.end - segment.start;\n            } else {\n                this.mediaSecondsLoaded += segment.duration;\n            }\n        }\n        shouldUpdateTransmuxerTimestampOffset_(timestampOffset) {\n            if (timestampOffset === null) {\n                return false;\n            } // note that we're potentially using the same timestamp offset for both video and\n            // audio\n\n            if (this.loaderType_ === 'main' && timestampOffset !== this.sourceUpdater_.videoTimestampOffset()) {\n                return true;\n            }\n            if (!this.audioDisabled_ && timestampOffset !== this.sourceUpdater_.audioTimestampOffset()) {\n                return true;\n            }\n            return false;\n        }\n        trueSegmentStart_({\n                              currentStart,\n                              playlist,\n                              mediaIndex,\n                              firstVideoFrameTimeForData,\n                              currentVideoTimestampOffset,\n                              useVideoTimingInfo,\n                              videoTimingInfo,\n                              audioTimingInfo\n                          }) {\n            if (typeof currentStart !== 'undefined') {\n                // if start was set once, keep using it\n                return currentStart;\n            }\n            if (!useVideoTimingInfo) {\n                return audioTimingInfo.start;\n            }\n            const previousSegment = playlist.segments[mediaIndex - 1]; // The start of a segment should be the start of the first full frame contained\n            // within that segment. Since the transmuxer maintains a cache of incomplete data\n            // from and/or the last frame seen, the start time may reflect a frame that starts\n            // in the previous segment. Check for that case and ensure the start time is\n            // accurate for the segment.\n\n            if (mediaIndex === 0 || !previousSegment || typeof previousSegment.start === 'undefined' || previousSegment.end !== firstVideoFrameTimeForData + currentVideoTimestampOffset) {\n                return firstVideoFrameTimeForData;\n            }\n            return videoTimingInfo.start;\n        }\n        waitForAppendsToComplete_(segmentInfo) {\n            const trackInfo = this.getCurrentMediaInfo_(segmentInfo);\n            if (!trackInfo) {\n                this.error({\n                    message: 'No starting media returned, likely due to an unsupported media format.',\n                    playlistExclusionDuration: Infinity\n                });\n                this.trigger('error');\n                return;\n            } // Although transmuxing is done, appends may not yet be finished. Throw a marker\n            // on each queue this loader is responsible for to ensure that the appends are\n            // complete.\n\n            const {\n                hasAudio,\n                hasVideo,\n                isMuxed\n            } = trackInfo;\n            const waitForVideo = this.loaderType_ === 'main' && hasVideo;\n            const waitForAudio = !this.audioDisabled_ && hasAudio && !isMuxed;\n            segmentInfo.waitingOnAppends = 0; // segments with no data\n\n            if (!segmentInfo.hasAppendedData_) {\n                if (!segmentInfo.timingInfo && typeof segmentInfo.timestampOffset === 'number') {\n                    // When there's no audio or video data in the segment, there's no audio or video\n                    // timing information.\n                    //\n                    // If there's no audio or video timing information, then the timestamp offset\n                    // can't be adjusted to the appropriate value for the transmuxer and source\n                    // buffers.\n                    //\n                    // Therefore, the next segment should be used to set the timestamp offset.\n                    this.isPendingTimestampOffset_ = true;\n                } // override settings for metadata only segments\n\n                segmentInfo.timingInfo = {\n                    start: 0\n                };\n                segmentInfo.waitingOnAppends++;\n                if (!this.isPendingTimestampOffset_) {\n                    // update the timestampoffset\n                    this.updateSourceBufferTimestampOffset_(segmentInfo); // make sure the metadata queue is processed even though we have\n                    // no video/audio data.\n\n                    this.processMetadataQueue_();\n                } // append is \"done\" instantly with no data.\n\n                this.checkAppendsDone_(segmentInfo);\n                return;\n            } // Since source updater could call back synchronously, do the increments first.\n\n            if (waitForVideo) {\n                segmentInfo.waitingOnAppends++;\n            }\n            if (waitForAudio) {\n                segmentInfo.waitingOnAppends++;\n            }\n            if (waitForVideo) {\n                this.sourceUpdater_.videoQueueCallback(this.checkAppendsDone_.bind(this, segmentInfo));\n            }\n            if (waitForAudio) {\n                this.sourceUpdater_.audioQueueCallback(this.checkAppendsDone_.bind(this, segmentInfo));\n            }\n        }\n        checkAppendsDone_(segmentInfo) {\n            if (this.checkForAbort_(segmentInfo.requestId)) {\n                return;\n            }\n            segmentInfo.waitingOnAppends--;\n            if (segmentInfo.waitingOnAppends === 0) {\n                this.handleAppendsDone_();\n            }\n        }\n        checkForIllegalMediaSwitch(trackInfo) {\n            const illegalMediaSwitchError = illegalMediaSwitch(this.loaderType_, this.getCurrentMediaInfo_(), trackInfo);\n            if (illegalMediaSwitchError) {\n                this.error({\n                    message: illegalMediaSwitchError,\n                    playlistExclusionDuration: Infinity\n                });\n                this.trigger('error');\n                return true;\n            }\n            return false;\n        }\n        updateSourceBufferTimestampOffset_(segmentInfo) {\n            if (segmentInfo.timestampOffset === null ||\n                // we don't yet have the start for whatever media type (video or audio) has\n                // priority, timing-wise, so we must wait\n                typeof segmentInfo.timingInfo.start !== 'number' ||\n                // already updated the timestamp offset for this segment\n                segmentInfo.changedTimestampOffset ||\n                // the alt audio loader should not be responsible for setting the timestamp offset\n                this.loaderType_ !== 'main') {\n                return;\n            }\n            let didChange = false; // Primary timing goes by video, and audio is trimmed in the transmuxer, meaning that\n            // the timing info here comes from video. In the event that the audio is longer than\n            // the video, this will trim the start of the audio.\n            // This also trims any offset from 0 at the beginning of the media\n\n            segmentInfo.timestampOffset -= this.getSegmentStartTimeForTimestampOffsetCalculation_({\n                videoTimingInfo: segmentInfo.segment.videoTimingInfo,\n                audioTimingInfo: segmentInfo.segment.audioTimingInfo,\n                timingInfo: segmentInfo.timingInfo\n            }); // In the event that there are part segment downloads, each will try to update the\n            // timestamp offset. Retaining this bit of state prevents us from updating in the\n            // future (within the same segment), however, there may be a better way to handle it.\n\n            segmentInfo.changedTimestampOffset = true;\n            if (segmentInfo.timestampOffset !== this.sourceUpdater_.videoTimestampOffset()) {\n                this.sourceUpdater_.videoTimestampOffset(segmentInfo.timestampOffset);\n                didChange = true;\n            }\n            if (segmentInfo.timestampOffset !== this.sourceUpdater_.audioTimestampOffset()) {\n                this.sourceUpdater_.audioTimestampOffset(segmentInfo.timestampOffset);\n                didChange = true;\n            }\n            if (didChange) {\n                this.trigger('timestampoffset');\n            }\n        }\n        getSegmentStartTimeForTimestampOffsetCalculation_({\n                                                              videoTimingInfo,\n                                                              audioTimingInfo,\n                                                              timingInfo\n                                                          }) {\n            if (!this.useDtsForTimestampOffset_) {\n                return timingInfo.start;\n            }\n            if (videoTimingInfo && typeof videoTimingInfo.transmuxedDecodeStart === 'number') {\n                return videoTimingInfo.transmuxedDecodeStart;\n            } // handle audio only\n\n            if (audioTimingInfo && typeof audioTimingInfo.transmuxedDecodeStart === 'number') {\n                return audioTimingInfo.transmuxedDecodeStart;\n            } // handle content not transmuxed (e.g., MP4)\n\n            return timingInfo.start;\n        }\n        updateTimingInfoEnd_(segmentInfo) {\n            segmentInfo.timingInfo = segmentInfo.timingInfo || {};\n            const trackInfo = this.getMediaInfo_();\n            const useVideoTimingInfo = this.loaderType_ === 'main' && trackInfo && trackInfo.hasVideo;\n            const prioritizedTimingInfo = useVideoTimingInfo && segmentInfo.videoTimingInfo ? segmentInfo.videoTimingInfo : segmentInfo.audioTimingInfo;\n            if (!prioritizedTimingInfo) {\n                return;\n            }\n            segmentInfo.timingInfo.end = typeof prioritizedTimingInfo.end === 'number' ?\n                // End time may not exist in a case where we aren't parsing the full segment (one\n                // current example is the case of fmp4), so use the rough duration to calculate an\n                // end time.\n                prioritizedTimingInfo.end : prioritizedTimingInfo.start + segmentInfo.duration;\n        }\n        /**\n         * callback to run when appendBuffer is finished. detects if we are\n         * in a good state to do things with the data we got, or if we need\n         * to wait for more\n         *\n         * @private\n         */\n\n        handleAppendsDone_() {\n            // appendsdone can cause an abort\n            if (this.pendingSegment_) {\n                this.trigger('appendsdone');\n            }\n            if (!this.pendingSegment_) {\n                this.state = 'READY'; // TODO should this move into this.checkForAbort to speed up requests post abort in\n                // all appending cases?\n\n                if (!this.paused()) {\n                    this.monitorBuffer_();\n                }\n                return;\n            }\n            const segmentInfo = this.pendingSegment_; // Now that the end of the segment has been reached, we can set the end time. It's\n            // best to wait until all appends are done so we're sure that the primary media is\n            // finished (and we have its end time).\n\n            this.updateTimingInfoEnd_(segmentInfo);\n            if (this.shouldSaveSegmentTimingInfo_) {\n                // Timeline mappings should only be saved for the main loader. This is for multiple\n                // reasons:\n                //\n                // 1) Only one mapping is saved per timeline, meaning that if both the audio loader\n                //    and the main loader try to save the timeline mapping, whichever comes later\n                //    will overwrite the first. In theory this is OK, as the mappings should be the\n                //    same, however, it breaks for (2)\n                // 2) In the event of a live stream, the initial live point will make for a somewhat\n                //    arbitrary mapping. If audio and video streams are not perfectly in-sync, then\n                //    the mapping will be off for one of the streams, dependent on which one was\n                //    first saved (see (1)).\n                // 3) Primary timing goes by video in VHS, so the mapping should be video.\n                //\n                // Since the audio loader will wait for the main loader to load the first segment,\n                // the main loader will save the first timeline mapping, and ensure that there won't\n                // be a case where audio loads two segments without saving a mapping (thus leading\n                // to missing segment timing info).\n                this.syncController_.saveSegmentTimingInfo({\n                    segmentInfo,\n                    shouldSaveTimelineMapping: this.loaderType_ === 'main'\n                });\n            }\n            const segmentDurationMessage = getTroublesomeSegmentDurationMessage(segmentInfo, this.sourceType_);\n            if (segmentDurationMessage) {\n                if (segmentDurationMessage.severity === 'warn') {\n                    videojs.log.warn(segmentDurationMessage.message);\n                } else {\n                    this.logger_(segmentDurationMessage.message);\n                }\n            }\n            this.recordThroughput_(segmentInfo);\n            this.pendingSegment_ = null;\n            this.state = 'READY';\n            if (segmentInfo.isSyncRequest) {\n                this.trigger('syncinfoupdate'); // if the sync request was not appended\n                // then it was not the correct segment.\n                // throw it away and use the data it gave us\n                // to get the correct one.\n\n                if (!segmentInfo.hasAppendedData_) {\n                    this.logger_(`Throwing away un-appended sync request ${segmentInfoString(segmentInfo)}`);\n                    return;\n                }\n            }\n            this.logger_(`Appended ${segmentInfoString(segmentInfo)}`);\n            this.addSegmentMetadataCue_(segmentInfo);\n            this.fetchAtBuffer_ = true;\n            if (this.currentTimeline_ !== segmentInfo.timeline) {\n                this.timelineChangeController_.lastTimelineChange({\n                    type: this.loaderType_,\n                    from: this.currentTimeline_,\n                    to: segmentInfo.timeline\n                }); // If audio is not disabled, the main segment loader is responsible for updating\n                // the audio timeline as well. If the content is video only, this won't have any\n                // impact.\n\n                if (this.loaderType_ === 'main' && !this.audioDisabled_) {\n                    this.timelineChangeController_.lastTimelineChange({\n                        type: 'audio',\n                        from: this.currentTimeline_,\n                        to: segmentInfo.timeline\n                    });\n                }\n            }\n            this.currentTimeline_ = segmentInfo.timeline; // We must update the syncinfo to recalculate the seekable range before\n            // the following conditional otherwise it may consider this a bad \"guess\"\n            // and attempt to resync when the post-update seekable window and live\n            // point would mean that this was the perfect segment to fetch\n\n            this.trigger('syncinfoupdate');\n            const segment = segmentInfo.segment;\n            const part = segmentInfo.part;\n            const badSegmentGuess = segment.end && this.currentTime_() - segment.end > segmentInfo.playlist.targetDuration * 3;\n            const badPartGuess = part && part.end && this.currentTime_() - part.end > segmentInfo.playlist.partTargetDuration * 3; // If we previously appended a segment/part that ends more than 3 part/targetDurations before\n            // the currentTime_ that means that our conservative guess was too conservative.\n            // In that case, reset the loader state so that we try to use any information gained\n            // from the previous request to create a new, more accurate, sync-point.\n\n            if (badSegmentGuess || badPartGuess) {\n                this.logger_(`bad ${badSegmentGuess ? 'segment' : 'part'} ${segmentInfoString(segmentInfo)}`);\n                this.resetEverything();\n                return;\n            }\n            const isWalkingForward = this.mediaIndex !== null; // Don't do a rendition switch unless we have enough time to get a sync segment\n            // and conservatively guess\n\n            if (isWalkingForward) {\n                this.trigger('bandwidthupdate');\n            }\n            this.trigger('progress');\n            this.mediaIndex = segmentInfo.mediaIndex;\n            this.partIndex = segmentInfo.partIndex; // any time an update finishes and the last segment is in the\n            // buffer, end the stream. this ensures the \"ended\" event will\n            // fire if playback reaches that point.\n\n            if (this.isEndOfStream_(segmentInfo.mediaIndex, segmentInfo.playlist, segmentInfo.partIndex)) {\n                this.endOfStream();\n            } // used for testing\n\n            this.trigger('appended');\n            if (segmentInfo.hasAppendedData_) {\n                this.mediaAppends++;\n            }\n            if (!this.paused()) {\n                this.monitorBuffer_();\n            }\n        }\n        /**\n         * Records the current throughput of the decrypt, transmux, and append\n         * portion of the semgment pipeline. `throughput.rate` is a the cumulative\n         * moving average of the throughput. `throughput.count` is the number of\n         * data points in the average.\n         *\n         * @private\n         * @param {Object} segmentInfo the object returned by loadSegment\n         */\n\n        recordThroughput_(segmentInfo) {\n            if (segmentInfo.duration < MIN_SEGMENT_DURATION_TO_SAVE_STATS) {\n                this.logger_(`Ignoring segment's throughput because its duration of ${segmentInfo.duration}` + ` is less than the min to record ${MIN_SEGMENT_DURATION_TO_SAVE_STATS}`);\n                return;\n            }\n            const rate = this.throughput.rate; // Add one to the time to ensure that we don't accidentally attempt to divide\n            // by zero in the case where the throughput is ridiculously high\n\n            const segmentProcessingTime = Date.now() - segmentInfo.endOfAllRequests + 1; // Multiply by 8000 to convert from bytes/millisecond to bits/second\n\n            const segmentProcessingThroughput = Math.floor(segmentInfo.byteLength / segmentProcessingTime * 8 * 1000); // This is just a cumulative moving average calculation:\n            //   newAvg = oldAvg + (sample - oldAvg) / (sampleCount + 1)\n\n            this.throughput.rate += (segmentProcessingThroughput - rate) / ++this.throughput.count;\n        }\n        /**\n         * Adds a cue to the segment-metadata track with some metadata information about the\n         * segment\n         *\n         * @private\n         * @param {Object} segmentInfo\n         *        the object returned by loadSegment\n         * @method addSegmentMetadataCue_\n         */\n\n        addSegmentMetadataCue_(segmentInfo) {\n            if (!this.segmentMetadataTrack_) {\n                return;\n            }\n            const segment = segmentInfo.segment;\n            const start = segment.start;\n            const end = segment.end; // Do not try adding the cue if the start and end times are invalid.\n\n            if (!finite(start) || !finite(end)) {\n                return;\n            }\n            removeCuesFromTrack(start, end, this.segmentMetadataTrack_);\n            const Cue = window.WebKitDataCue || window.VTTCue;\n            const value = {\n                custom: segment.custom,\n                dateTimeObject: segment.dateTimeObject,\n                dateTimeString: segment.dateTimeString,\n                bandwidth: segmentInfo.playlist.attributes.BANDWIDTH,\n                resolution: segmentInfo.playlist.attributes.RESOLUTION,\n                codecs: segmentInfo.playlist.attributes.CODECS,\n                byteLength: segmentInfo.byteLength,\n                uri: segmentInfo.uri,\n                timeline: segmentInfo.timeline,\n                playlist: segmentInfo.playlist.id,\n                start,\n                end\n            };\n            const data = JSON.stringify(value);\n            const cue = new Cue(start, end, data); // Attach the metadata to the value property of the cue to keep consistency between\n            // the differences of WebKitDataCue in safari and VTTCue in other browsers\n\n            cue.value = value;\n            this.segmentMetadataTrack_.addCue(cue);\n        }\n    }\n    function noop() {}\n    const toTitleCase = function (string) {\n        if (typeof string !== 'string') {\n            return string;\n        }\n        return string.replace(/./, w => w.toUpperCase());\n    };\n\n    /**\n     * @file source-updater.js\n     */\n    const bufferTypes = ['video', 'audio'];\n    const updating = (type, sourceUpdater) => {\n        const sourceBuffer = sourceUpdater[`${type}Buffer`];\n        return sourceBuffer && sourceBuffer.updating || sourceUpdater.queuePending[type];\n    };\n    const nextQueueIndexOfType = (type, queue) => {\n        for (let i = 0; i < queue.length; i++) {\n            const queueEntry = queue[i];\n            if (queueEntry.type === 'mediaSource') {\n                // If the next entry is a media source entry (uses multiple source buffers), block\n                // processing to allow it to go through first.\n                return null;\n            }\n            if (queueEntry.type === type) {\n                return i;\n            }\n        }\n        return null;\n    };\n    const shiftQueue = (type, sourceUpdater) => {\n        if (sourceUpdater.queue.length === 0) {\n            return;\n        }\n        let queueIndex = 0;\n        let queueEntry = sourceUpdater.queue[queueIndex];\n        if (queueEntry.type === 'mediaSource') {\n            if (!sourceUpdater.updating() && sourceUpdater.mediaSource.readyState !== 'closed') {\n                sourceUpdater.queue.shift();\n                queueEntry.action(sourceUpdater);\n                if (queueEntry.doneFn) {\n                    queueEntry.doneFn();\n                } // Only specific source buffer actions must wait for async updateend events. Media\n                // Source actions process synchronously. Therefore, both audio and video source\n                // buffers are now clear to process the next queue entries.\n\n                shiftQueue('audio', sourceUpdater);\n                shiftQueue('video', sourceUpdater);\n            } // Media Source actions require both source buffers, so if the media source action\n            // couldn't process yet (because one or both source buffers are busy), block other\n            // queue actions until both are available and the media source action can process.\n\n            return;\n        }\n        if (type === 'mediaSource') {\n            // If the queue was shifted by a media source action (this happens when pushing a\n            // media source action onto the queue), then it wasn't from an updateend event from an\n            // audio or video source buffer, so there's no change from previous state, and no\n            // processing should be done.\n            return;\n        } // Media source queue entries don't need to consider whether the source updater is\n        // started (i.e., source buffers are created) as they don't need the source buffers, but\n        // source buffer queue entries do.\n\n        if (!sourceUpdater.ready() || sourceUpdater.mediaSource.readyState === 'closed' || updating(type, sourceUpdater)) {\n            return;\n        }\n        if (queueEntry.type !== type) {\n            queueIndex = nextQueueIndexOfType(type, sourceUpdater.queue);\n            if (queueIndex === null) {\n                // Either there's no queue entry that uses this source buffer type in the queue, or\n                // there's a media source queue entry before the next entry of this type, in which\n                // case wait for that action to process first.\n                return;\n            }\n            queueEntry = sourceUpdater.queue[queueIndex];\n        }\n        sourceUpdater.queue.splice(queueIndex, 1); // Keep a record that this source buffer type is in use.\n        //\n        // The queue pending operation must be set before the action is performed in the event\n        // that the action results in a synchronous event that is acted upon. For instance, if\n        // an exception is thrown that can be handled, it's possible that new actions will be\n        // appended to an empty queue and immediately executed, but would not have the correct\n        // pending information if this property was set after the action was performed.\n\n        sourceUpdater.queuePending[type] = queueEntry;\n        queueEntry.action(type, sourceUpdater);\n        if (!queueEntry.doneFn) {\n            // synchronous operation, process next entry\n            sourceUpdater.queuePending[type] = null;\n            shiftQueue(type, sourceUpdater);\n            return;\n        }\n    };\n    const cleanupBuffer = (type, sourceUpdater) => {\n        const buffer = sourceUpdater[`${type}Buffer`];\n        const titleType = toTitleCase(type);\n        if (!buffer) {\n            return;\n        }\n        buffer.removeEventListener('updateend', sourceUpdater[`on${titleType}UpdateEnd_`]);\n        buffer.removeEventListener('error', sourceUpdater[`on${titleType}Error_`]);\n        sourceUpdater.codecs[type] = null;\n        sourceUpdater[`${type}Buffer`] = null;\n    };\n    const inSourceBuffers = (mediaSource, sourceBuffer) => mediaSource && sourceBuffer && Array.prototype.indexOf.call(mediaSource.sourceBuffers, sourceBuffer) !== -1;\n    const actions = {\n        appendBuffer: (bytes, segmentInfo, onError) => (type, sourceUpdater) => {\n            const sourceBuffer = sourceUpdater[`${type}Buffer`]; // can't do anything if the media source / source buffer is null\n            // or the media source does not contain this source buffer.\n\n            if (!inSourceBuffers(sourceUpdater.mediaSource, sourceBuffer)) {\n                return;\n            }\n            sourceUpdater.logger_(`Appending segment ${segmentInfo.mediaIndex}'s ${bytes.length} bytes to ${type}Buffer`);\n            try {\n                sourceBuffer.appendBuffer(bytes);\n            } catch (e) {\n                sourceUpdater.logger_(`Error with code ${e.code} ` + (e.code === QUOTA_EXCEEDED_ERR ? '(QUOTA_EXCEEDED_ERR) ' : '') + `when appending segment ${segmentInfo.mediaIndex} to ${type}Buffer`);\n                sourceUpdater.queuePending[type] = null;\n                onError(e);\n            }\n        },\n        remove: (start, end) => (type, sourceUpdater) => {\n            const sourceBuffer = sourceUpdater[`${type}Buffer`]; // can't do anything if the media source / source buffer is null\n            // or the media source does not contain this source buffer.\n\n            if (!inSourceBuffers(sourceUpdater.mediaSource, sourceBuffer)) {\n                return;\n            }\n            sourceUpdater.logger_(`Removing ${start} to ${end} from ${type}Buffer`);\n            try {\n                sourceBuffer.remove(start, end);\n            } catch (e) {\n                sourceUpdater.logger_(`Remove ${start} to ${end} from ${type}Buffer failed`);\n            }\n        },\n        timestampOffset: offset => (type, sourceUpdater) => {\n            const sourceBuffer = sourceUpdater[`${type}Buffer`]; // can't do anything if the media source / source buffer is null\n            // or the media source does not contain this source buffer.\n\n            if (!inSourceBuffers(sourceUpdater.mediaSource, sourceBuffer)) {\n                return;\n            }\n            sourceUpdater.logger_(`Setting ${type}timestampOffset to ${offset}`);\n            sourceBuffer.timestampOffset = offset;\n        },\n        callback: callback => (type, sourceUpdater) => {\n            callback();\n        },\n        endOfStream: error => sourceUpdater => {\n            if (sourceUpdater.mediaSource.readyState !== 'open') {\n                return;\n            }\n            sourceUpdater.logger_(`Calling mediaSource endOfStream(${error || ''})`);\n            try {\n                sourceUpdater.mediaSource.endOfStream(error);\n            } catch (e) {\n                videojs.log.warn('Failed to call media source endOfStream', e);\n            }\n        },\n        duration: duration => sourceUpdater => {\n            sourceUpdater.logger_(`Setting mediaSource duration to ${duration}`);\n            try {\n                sourceUpdater.mediaSource.duration = duration;\n            } catch (e) {\n                videojs.log.warn('Failed to set media source duration', e);\n            }\n        },\n        abort: () => (type, sourceUpdater) => {\n            if (sourceUpdater.mediaSource.readyState !== 'open') {\n                return;\n            }\n            const sourceBuffer = sourceUpdater[`${type}Buffer`]; // can't do anything if the media source / source buffer is null\n            // or the media source does not contain this source buffer.\n\n            if (!inSourceBuffers(sourceUpdater.mediaSource, sourceBuffer)) {\n                return;\n            }\n            sourceUpdater.logger_(`calling abort on ${type}Buffer`);\n            try {\n                sourceBuffer.abort();\n            } catch (e) {\n                videojs.log.warn(`Failed to abort on ${type}Buffer`, e);\n            }\n        },\n        addSourceBuffer: (type, codec) => sourceUpdater => {\n            const titleType = toTitleCase(type);\n            const mime = getMimeForCodec(codec);\n            sourceUpdater.logger_(`Adding ${type}Buffer with codec ${codec} to mediaSource`);\n            const sourceBuffer = sourceUpdater.mediaSource.addSourceBuffer(mime);\n            sourceBuffer.addEventListener('updateend', sourceUpdater[`on${titleType}UpdateEnd_`]);\n            sourceBuffer.addEventListener('error', sourceUpdater[`on${titleType}Error_`]);\n            sourceUpdater.codecs[type] = codec;\n            sourceUpdater[`${type}Buffer`] = sourceBuffer;\n        },\n        removeSourceBuffer: type => sourceUpdater => {\n            const sourceBuffer = sourceUpdater[`${type}Buffer`];\n            cleanupBuffer(type, sourceUpdater); // can't do anything if the media source / source buffer is null\n            // or the media source does not contain this source buffer.\n\n            if (!inSourceBuffers(sourceUpdater.mediaSource, sourceBuffer)) {\n                return;\n            }\n            sourceUpdater.logger_(`Removing ${type}Buffer with codec ${sourceUpdater.codecs[type]} from mediaSource`);\n            try {\n                sourceUpdater.mediaSource.removeSourceBuffer(sourceBuffer);\n            } catch (e) {\n                videojs.log.warn(`Failed to removeSourceBuffer ${type}Buffer`, e);\n            }\n        },\n        changeType: codec => (type, sourceUpdater) => {\n            const sourceBuffer = sourceUpdater[`${type}Buffer`];\n            const mime = getMimeForCodec(codec); // can't do anything if the media source / source buffer is null\n            // or the media source does not contain this source buffer.\n\n            if (!inSourceBuffers(sourceUpdater.mediaSource, sourceBuffer)) {\n                return;\n            } // do not update codec if we don't need to.\n\n            if (sourceUpdater.codecs[type] === codec) {\n                return;\n            }\n            sourceUpdater.logger_(`changing ${type}Buffer codec from ${sourceUpdater.codecs[type]} to ${codec}`);\n            sourceBuffer.changeType(mime);\n            sourceUpdater.codecs[type] = codec;\n        }\n    };\n    const pushQueue = ({\n                           type,\n                           sourceUpdater,\n                           action,\n                           doneFn,\n                           name\n                       }) => {\n        sourceUpdater.queue.push({\n            type,\n            action,\n            doneFn,\n            name\n        });\n        shiftQueue(type, sourceUpdater);\n    };\n    const onUpdateend = (type, sourceUpdater) => e => {\n        // Although there should, in theory, be a pending action for any updateend receieved,\n        // there are some actions that may trigger updateend events without set definitions in\n        // the w3c spec. For instance, setting the duration on the media source may trigger\n        // updateend events on source buffers. This does not appear to be in the spec. As such,\n        // if we encounter an updateend without a corresponding pending action from our queue\n        // for that source buffer type, process the next action.\n        if (sourceUpdater.queuePending[type]) {\n            const doneFn = sourceUpdater.queuePending[type].doneFn;\n            sourceUpdater.queuePending[type] = null;\n            if (doneFn) {\n                // if there's an error, report it\n                doneFn(sourceUpdater[`${type}Error_`]);\n            }\n        }\n        shiftQueue(type, sourceUpdater);\n    };\n    /**\n     * A queue of callbacks to be serialized and applied when a\n     * MediaSource and its associated SourceBuffers are not in the\n     * updating state. It is used by the segment loader to update the\n     * underlying SourceBuffers when new data is loaded, for instance.\n     *\n     * @class SourceUpdater\n     * @param {MediaSource} mediaSource the MediaSource to create the SourceBuffer from\n     * @param {string} mimeType the desired MIME type of the underlying SourceBuffer\n     */\n\n    class SourceUpdater extends videojs.EventTarget {\n        constructor(mediaSource) {\n            super();\n            this.mediaSource = mediaSource;\n            this.sourceopenListener_ = () => shiftQueue('mediaSource', this);\n            this.mediaSource.addEventListener('sourceopen', this.sourceopenListener_);\n            this.logger_ = logger('SourceUpdater'); // initial timestamp offset is 0\n\n            this.audioTimestampOffset_ = 0;\n            this.videoTimestampOffset_ = 0;\n            this.queue = [];\n            this.queuePending = {\n                audio: null,\n                video: null\n            };\n            this.delayedAudioAppendQueue_ = [];\n            this.videoAppendQueued_ = false;\n            this.codecs = {};\n            this.onVideoUpdateEnd_ = onUpdateend('video', this);\n            this.onAudioUpdateEnd_ = onUpdateend('audio', this);\n            this.onVideoError_ = e => {\n                // used for debugging\n                this.videoError_ = e;\n            };\n            this.onAudioError_ = e => {\n                // used for debugging\n                this.audioError_ = e;\n            };\n            this.createdSourceBuffers_ = false;\n            this.initializedEme_ = false;\n            this.triggeredReady_ = false;\n        }\n        initializedEme() {\n            this.initializedEme_ = true;\n            this.triggerReady();\n        }\n        hasCreatedSourceBuffers() {\n            // if false, likely waiting on one of the segment loaders to get enough data to create\n            // source buffers\n            return this.createdSourceBuffers_;\n        }\n        hasInitializedAnyEme() {\n            return this.initializedEme_;\n        }\n        ready() {\n            return this.hasCreatedSourceBuffers() && this.hasInitializedAnyEme();\n        }\n        createSourceBuffers(codecs) {\n            if (this.hasCreatedSourceBuffers()) {\n                // already created them before\n                return;\n            } // the intial addOrChangeSourceBuffers will always be\n            // two add buffers.\n\n            this.addOrChangeSourceBuffers(codecs);\n            this.createdSourceBuffers_ = true;\n            this.trigger('createdsourcebuffers');\n            this.triggerReady();\n        }\n        triggerReady() {\n            // only allow ready to be triggered once, this prevents the case\n            // where:\n            // 1. we trigger createdsourcebuffers\n            // 2. ie 11 synchronously initializates eme\n            // 3. the synchronous initialization causes us to trigger ready\n            // 4. We go back to the ready check in createSourceBuffers and ready is triggered again.\n            if (this.ready() && !this.triggeredReady_) {\n                this.triggeredReady_ = true;\n                this.trigger('ready');\n            }\n        }\n        /**\n         * Add a type of source buffer to the media source.\n         *\n         * @param {string} type\n         *        The type of source buffer to add.\n         *\n         * @param {string} codec\n         *        The codec to add the source buffer with.\n         */\n\n        addSourceBuffer(type, codec) {\n            pushQueue({\n                type: 'mediaSource',\n                sourceUpdater: this,\n                action: actions.addSourceBuffer(type, codec),\n                name: 'addSourceBuffer'\n            });\n        }\n        /**\n         * call abort on a source buffer.\n         *\n         * @param {string} type\n         *        The type of source buffer to call abort on.\n         */\n\n        abort(type) {\n            pushQueue({\n                type,\n                sourceUpdater: this,\n                action: actions.abort(type),\n                name: 'abort'\n            });\n        }\n        /**\n         * Call removeSourceBuffer and remove a specific type\n         * of source buffer on the mediaSource.\n         *\n         * @param {string} type\n         *        The type of source buffer to remove.\n         */\n\n        removeSourceBuffer(type) {\n            if (!this.canRemoveSourceBuffer()) {\n                videojs.log.error('removeSourceBuffer is not supported!');\n                return;\n            }\n            pushQueue({\n                type: 'mediaSource',\n                sourceUpdater: this,\n                action: actions.removeSourceBuffer(type),\n                name: 'removeSourceBuffer'\n            });\n        }\n        /**\n         * Whether or not the removeSourceBuffer function is supported\n         * on the mediaSource.\n         *\n         * @return {boolean}\n         *          if removeSourceBuffer can be called.\n         */\n\n        canRemoveSourceBuffer() {\n            // IE reports that it supports removeSourceBuffer, but often throws\n            // errors when attempting to use the function. So we report that it\n            // does not support removeSourceBuffer. As of Firefox 83 removeSourceBuffer\n            // throws errors, so we report that it does not support this as well.\n            return !videojs.browser.IE_VERSION && !videojs.browser.IS_FIREFOX && window.MediaSource && window.MediaSource.prototype && typeof window.MediaSource.prototype.removeSourceBuffer === 'function';\n        }\n        /**\n         * Whether or not the changeType function is supported\n         * on our SourceBuffers.\n         *\n         * @return {boolean}\n         *         if changeType can be called.\n         */\n\n        static canChangeType() {\n            return window.SourceBuffer && window.SourceBuffer.prototype && typeof window.SourceBuffer.prototype.changeType === 'function';\n        }\n        /**\n         * Whether or not the changeType function is supported\n         * on our SourceBuffers.\n         *\n         * @return {boolean}\n         *         if changeType can be called.\n         */\n\n        canChangeType() {\n            return this.constructor.canChangeType();\n        }\n        /**\n         * Call the changeType function on a source buffer, given the code and type.\n         *\n         * @param {string} type\n         *        The type of source buffer to call changeType on.\n         *\n         * @param {string} codec\n         *        The codec string to change type with on the source buffer.\n         */\n\n        changeType(type, codec) {\n            if (!this.canChangeType()) {\n                videojs.log.error('changeType is not supported!');\n                return;\n            }\n            pushQueue({\n                type,\n                sourceUpdater: this,\n                action: actions.changeType(codec),\n                name: 'changeType'\n            });\n        }\n        /**\n         * Add source buffers with a codec or, if they are already created,\n         * call changeType on source buffers using changeType.\n         *\n         * @param {Object} codecs\n         *        Codecs to switch to\n         */\n\n        addOrChangeSourceBuffers(codecs) {\n            if (!codecs || typeof codecs !== 'object' || Object.keys(codecs).length === 0) {\n                throw new Error('Cannot addOrChangeSourceBuffers to undefined codecs');\n            }\n            Object.keys(codecs).forEach(type => {\n                const codec = codecs[type];\n                if (!this.hasCreatedSourceBuffers()) {\n                    return this.addSourceBuffer(type, codec);\n                }\n                if (this.canChangeType()) {\n                    this.changeType(type, codec);\n                }\n            });\n        }\n        /**\n         * Queue an update to append an ArrayBuffer.\n         *\n         * @param {MediaObject} object containing audioBytes and/or videoBytes\n         * @param {Function} done the function to call when done\n         * @see http://www.w3.org/TR/media-source/#widl-SourceBuffer-appendBuffer-void-ArrayBuffer-data\n         */\n\n        appendBuffer(options, doneFn) {\n            const {\n                segmentInfo,\n                type,\n                bytes\n            } = options;\n            this.processedAppend_ = true;\n            if (type === 'audio' && this.videoBuffer && !this.videoAppendQueued_) {\n                this.delayedAudioAppendQueue_.push([options, doneFn]);\n                this.logger_(`delayed audio append of ${bytes.length} until video append`);\n                return;\n            } // In the case of certain errors, for instance, QUOTA_EXCEEDED_ERR, updateend will\n            // not be fired. This means that the queue will be blocked until the next action\n            // taken by the segment-loader. Provide a mechanism for segment-loader to handle\n            // these errors by calling the doneFn with the specific error.\n\n            const onError = doneFn;\n            pushQueue({\n                type,\n                sourceUpdater: this,\n                action: actions.appendBuffer(bytes, segmentInfo || {\n                    mediaIndex: -1\n                }, onError),\n                doneFn,\n                name: 'appendBuffer'\n            });\n            if (type === 'video') {\n                this.videoAppendQueued_ = true;\n                if (!this.delayedAudioAppendQueue_.length) {\n                    return;\n                }\n                const queue = this.delayedAudioAppendQueue_.slice();\n                this.logger_(`queuing delayed audio ${queue.length} appendBuffers`);\n                this.delayedAudioAppendQueue_.length = 0;\n                queue.forEach(que => {\n                    this.appendBuffer.apply(this, que);\n                });\n            }\n        }\n        /**\n         * Get the audio buffer's buffered timerange.\n         *\n         * @return {TimeRange}\n         *         The audio buffer's buffered time range\n         */\n\n        audioBuffered() {\n            // no media source/source buffer or it isn't in the media sources\n            // source buffer list\n            if (!inSourceBuffers(this.mediaSource, this.audioBuffer)) {\n                return createTimeRanges();\n            }\n            return this.audioBuffer.buffered ? this.audioBuffer.buffered : createTimeRanges();\n        }\n        /**\n         * Get the video buffer's buffered timerange.\n         *\n         * @return {TimeRange}\n         *         The video buffer's buffered time range\n         */\n\n        videoBuffered() {\n            // no media source/source buffer or it isn't in the media sources\n            // source buffer list\n            if (!inSourceBuffers(this.mediaSource, this.videoBuffer)) {\n                return createTimeRanges();\n            }\n            return this.videoBuffer.buffered ? this.videoBuffer.buffered : createTimeRanges();\n        }\n        /**\n         * Get a combined video/audio buffer's buffered timerange.\n         *\n         * @return {TimeRange}\n         *         the combined time range\n         */\n\n        buffered() {\n            const video = inSourceBuffers(this.mediaSource, this.videoBuffer) ? this.videoBuffer : null;\n            const audio = inSourceBuffers(this.mediaSource, this.audioBuffer) ? this.audioBuffer : null;\n            if (audio && !video) {\n                return this.audioBuffered();\n            }\n            if (video && !audio) {\n                return this.videoBuffered();\n            }\n            return bufferIntersection(this.audioBuffered(), this.videoBuffered());\n        }\n        /**\n         * Add a callback to the queue that will set duration on the mediaSource.\n         *\n         * @param {number} duration\n         *        The duration to set\n         *\n         * @param {Function} [doneFn]\n         *        function to run after duration has been set.\n         */\n\n        setDuration(duration, doneFn = noop) {\n            // In order to set the duration on the media source, it's necessary to wait for all\n            // source buffers to no longer be updating. \"If the updating attribute equals true on\n            // any SourceBuffer in sourceBuffers, then throw an InvalidStateError exception and\n            // abort these steps.\" (source: https://www.w3.org/TR/media-source/#attributes).\n            pushQueue({\n                type: 'mediaSource',\n                sourceUpdater: this,\n                action: actions.duration(duration),\n                name: 'duration',\n                doneFn\n            });\n        }\n        /**\n         * Add a mediaSource endOfStream call to the queue\n         *\n         * @param {Error} [error]\n         *        Call endOfStream with an error\n         *\n         * @param {Function} [doneFn]\n         *        A function that should be called when the\n         *        endOfStream call has finished.\n         */\n\n        endOfStream(error = null, doneFn = noop) {\n            if (typeof error !== 'string') {\n                error = undefined;\n            } // In order to set the duration on the media source, it's necessary to wait for all\n            // source buffers to no longer be updating. \"If the updating attribute equals true on\n            // any SourceBuffer in sourceBuffers, then throw an InvalidStateError exception and\n            // abort these steps.\" (source: https://www.w3.org/TR/media-source/#attributes).\n\n            pushQueue({\n                type: 'mediaSource',\n                sourceUpdater: this,\n                action: actions.endOfStream(error),\n                name: 'endOfStream',\n                doneFn\n            });\n        }\n        /**\n         * Queue an update to remove a time range from the buffer.\n         *\n         * @param {number} start where to start the removal\n         * @param {number} end where to end the removal\n         * @param {Function} [done=noop] optional callback to be executed when the remove\n         * operation is complete\n         * @see http://www.w3.org/TR/media-source/#widl-SourceBuffer-remove-void-double-start-unrestricted-double-end\n         */\n\n        removeAudio(start, end, done = noop) {\n            if (!this.audioBuffered().length || this.audioBuffered().end(0) === 0) {\n                done();\n                return;\n            }\n            pushQueue({\n                type: 'audio',\n                sourceUpdater: this,\n                action: actions.remove(start, end),\n                doneFn: done,\n                name: 'remove'\n            });\n        }\n        /**\n         * Queue an update to remove a time range from the buffer.\n         *\n         * @param {number} start where to start the removal\n         * @param {number} end where to end the removal\n         * @param {Function} [done=noop] optional callback to be executed when the remove\n         * operation is complete\n         * @see http://www.w3.org/TR/media-source/#widl-SourceBuffer-remove-void-double-start-unrestricted-double-end\n         */\n\n        removeVideo(start, end, done = noop) {\n            if (!this.videoBuffered().length || this.videoBuffered().end(0) === 0) {\n                done();\n                return;\n            }\n            pushQueue({\n                type: 'video',\n                sourceUpdater: this,\n                action: actions.remove(start, end),\n                doneFn: done,\n                name: 'remove'\n            });\n        }\n        /**\n         * Whether the underlying sourceBuffer is updating or not\n         *\n         * @return {boolean} the updating status of the SourceBuffer\n         */\n\n        updating() {\n            // the audio/video source buffer is updating\n            if (updating('audio', this) || updating('video', this)) {\n                return true;\n            }\n            return false;\n        }\n        /**\n         * Set/get the timestampoffset on the audio SourceBuffer\n         *\n         * @return {number} the timestamp offset\n         */\n\n        audioTimestampOffset(offset) {\n            if (typeof offset !== 'undefined' && this.audioBuffer &&\n                // no point in updating if it's the same\n                this.audioTimestampOffset_ !== offset) {\n                pushQueue({\n                    type: 'audio',\n                    sourceUpdater: this,\n                    action: actions.timestampOffset(offset),\n                    name: 'timestampOffset'\n                });\n                this.audioTimestampOffset_ = offset;\n            }\n            return this.audioTimestampOffset_;\n        }\n        /**\n         * Set/get the timestampoffset on the video SourceBuffer\n         *\n         * @return {number} the timestamp offset\n         */\n\n        videoTimestampOffset(offset) {\n            if (typeof offset !== 'undefined' && this.videoBuffer &&\n                // no point in updating if it's the same\n                this.videoTimestampOffset !== offset) {\n                pushQueue({\n                    type: 'video',\n                    sourceUpdater: this,\n                    action: actions.timestampOffset(offset),\n                    name: 'timestampOffset'\n                });\n                this.videoTimestampOffset_ = offset;\n            }\n            return this.videoTimestampOffset_;\n        }\n        /**\n         * Add a function to the queue that will be called\n         * when it is its turn to run in the audio queue.\n         *\n         * @param {Function} callback\n         *        The callback to queue.\n         */\n\n        audioQueueCallback(callback) {\n            if (!this.audioBuffer) {\n                return;\n            }\n            pushQueue({\n                type: 'audio',\n                sourceUpdater: this,\n                action: actions.callback(callback),\n                name: 'callback'\n            });\n        }\n        /**\n         * Add a function to the queue that will be called\n         * when it is its turn to run in the video queue.\n         *\n         * @param {Function} callback\n         *        The callback to queue.\n         */\n\n        videoQueueCallback(callback) {\n            if (!this.videoBuffer) {\n                return;\n            }\n            pushQueue({\n                type: 'video',\n                sourceUpdater: this,\n                action: actions.callback(callback),\n                name: 'callback'\n            });\n        }\n        /**\n         * dispose of the source updater and the underlying sourceBuffer\n         */\n\n        dispose() {\n            this.trigger('dispose');\n            bufferTypes.forEach(type => {\n                this.abort(type);\n                if (this.canRemoveSourceBuffer()) {\n                    this.removeSourceBuffer(type);\n                } else {\n                    this[`${type}QueueCallback`](() => cleanupBuffer(type, this));\n                }\n            });\n            this.videoAppendQueued_ = false;\n            this.delayedAudioAppendQueue_.length = 0;\n            if (this.sourceopenListener_) {\n                this.mediaSource.removeEventListener('sourceopen', this.sourceopenListener_);\n            }\n            this.off();\n        }\n    }\n    const uint8ToUtf8 = uintArray => decodeURIComponent(escape(String.fromCharCode.apply(null, uintArray)));\n\n    /**\n     * @file vtt-segment-loader.js\n     */\n    const VTT_LINE_TERMINATORS = new Uint8Array('\\n\\n'.split('').map(char => char.charCodeAt(0)));\n    class NoVttJsError extends Error {\n        constructor() {\n            super('Trying to parse received VTT cues, but there is no WebVTT. Make sure vtt.js is loaded.');\n        }\n    }\n    /**\n     * An object that manages segment loading and appending.\n     *\n     * @class VTTSegmentLoader\n     * @param {Object} options required and optional options\n     * @extends videojs.EventTarget\n     */\n\n    class VTTSegmentLoader extends SegmentLoader {\n        constructor(settings, options = {}) {\n            super(settings, options); // SegmentLoader requires a MediaSource be specified or it will throw an error;\n            // however, VTTSegmentLoader has no need of a media source, so delete the reference\n\n            this.mediaSource_ = null;\n            this.subtitlesTrack_ = null;\n            this.loaderType_ = 'subtitle';\n            this.featuresNativeTextTracks_ = settings.featuresNativeTextTracks;\n            this.loadVttJs = settings.loadVttJs; // The VTT segment will have its own time mappings. Saving VTT segment timing info in\n            // the sync controller leads to improper behavior.\n\n            this.shouldSaveSegmentTimingInfo_ = false;\n        }\n        createTransmuxer_() {\n            // don't need to transmux any subtitles\n            return null;\n        }\n        /**\n         * Indicates which time ranges are buffered\n         *\n         * @return {TimeRange}\n         *         TimeRange object representing the current buffered ranges\n         */\n\n        buffered_() {\n            if (!this.subtitlesTrack_ || !this.subtitlesTrack_.cues || !this.subtitlesTrack_.cues.length) {\n                return createTimeRanges();\n            }\n            const cues = this.subtitlesTrack_.cues;\n            const start = cues[0].startTime;\n            const end = cues[cues.length - 1].startTime;\n            return createTimeRanges([[start, end]]);\n        }\n        /**\n         * Gets and sets init segment for the provided map\n         *\n         * @param {Object} map\n         *        The map object representing the init segment to get or set\n         * @param {boolean=} set\n         *        If true, the init segment for the provided map should be saved\n         * @return {Object}\n         *         map object for desired init segment\n         */\n\n        initSegmentForMap(map, set = false) {\n            if (!map) {\n                return null;\n            }\n            const id = initSegmentId(map);\n            let storedMap = this.initSegments_[id];\n            if (set && !storedMap && map.bytes) {\n                // append WebVTT line terminators to the media initialization segment if it exists\n                // to follow the WebVTT spec (https://w3c.github.io/webvtt/#file-structure) that\n                // requires two or more WebVTT line terminators between the WebVTT header and the\n                // rest of the file\n                const combinedByteLength = VTT_LINE_TERMINATORS.byteLength + map.bytes.byteLength;\n                const combinedSegment = new Uint8Array(combinedByteLength);\n                combinedSegment.set(map.bytes);\n                combinedSegment.set(VTT_LINE_TERMINATORS, map.bytes.byteLength);\n                this.initSegments_[id] = storedMap = {\n                    resolvedUri: map.resolvedUri,\n                    byterange: map.byterange,\n                    bytes: combinedSegment\n                };\n            }\n            return storedMap || map;\n        }\n        /**\n         * Returns true if all configuration required for loading is present, otherwise false.\n         *\n         * @return {boolean} True if the all configuration is ready for loading\n         * @private\n         */\n\n        couldBeginLoading_() {\n            return this.playlist_ && this.subtitlesTrack_ && !this.paused();\n        }\n        /**\n         * Once all the starting parameters have been specified, begin\n         * operation. This method should only be invoked from the INIT\n         * state.\n         *\n         * @private\n         */\n\n        init_() {\n            this.state = 'READY';\n            this.resetEverything();\n            return this.monitorBuffer_();\n        }\n        /**\n         * Set a subtitle track on the segment loader to add subtitles to\n         *\n         * @param {TextTrack=} track\n         *        The text track to add loaded subtitles to\n         * @return {TextTrack}\n         *        Returns the subtitles track\n         */\n\n        track(track) {\n            if (typeof track === 'undefined') {\n                return this.subtitlesTrack_;\n            }\n            this.subtitlesTrack_ = track; // if we were unpaused but waiting for a sourceUpdater, start\n            // buffering now\n\n            if (this.state === 'INIT' && this.couldBeginLoading_()) {\n                this.init_();\n            }\n            return this.subtitlesTrack_;\n        }\n        /**\n         * Remove any data in the source buffer between start and end times\n         *\n         * @param {number} start - the start time of the region to remove from the buffer\n         * @param {number} end - the end time of the region to remove from the buffer\n         */\n\n        remove(start, end) {\n            removeCuesFromTrack(start, end, this.subtitlesTrack_);\n        }\n        /**\n         * fill the buffer with segements unless the sourceBuffers are\n         * currently updating\n         *\n         * Note: this function should only ever be called by monitorBuffer_\n         * and never directly\n         *\n         * @private\n         */\n\n        fillBuffer_() {\n            // see if we need to begin loading immediately\n            const segmentInfo = this.chooseNextRequest_();\n            if (!segmentInfo) {\n                return;\n            }\n            if (this.syncController_.timestampOffsetForTimeline(segmentInfo.timeline) === null) {\n                // We don't have the timestamp offset that we need to sync subtitles.\n                // Rerun on a timestamp offset or user interaction.\n                const checkTimestampOffset = () => {\n                    this.state = 'READY';\n                    if (!this.paused()) {\n                        // if not paused, queue a buffer check as soon as possible\n                        this.monitorBuffer_();\n                    }\n                };\n                this.syncController_.one('timestampoffset', checkTimestampOffset);\n                this.state = 'WAITING_ON_TIMELINE';\n                return;\n            }\n            this.loadSegment_(segmentInfo);\n        } // never set a timestamp offset for vtt segments.\n\n        timestampOffsetForSegment_() {\n            return null;\n        }\n        chooseNextRequest_() {\n            return this.skipEmptySegments_(super.chooseNextRequest_());\n        }\n        /**\n         * Prevents the segment loader from requesting segments we know contain no subtitles\n         * by walking forward until we find the next segment that we don't know whether it is\n         * empty or not.\n         *\n         * @param {Object} segmentInfo\n         *        a segment info object that describes the current segment\n         * @return {Object}\n         *         a segment info object that describes the current segment\n         */\n\n        skipEmptySegments_(segmentInfo) {\n            while (segmentInfo && segmentInfo.segment.empty) {\n                // stop at the last possible segmentInfo\n                if (segmentInfo.mediaIndex + 1 >= segmentInfo.playlist.segments.length) {\n                    segmentInfo = null;\n                    break;\n                }\n                segmentInfo = this.generateSegmentInfo_({\n                    playlist: segmentInfo.playlist,\n                    mediaIndex: segmentInfo.mediaIndex + 1,\n                    startOfSegment: segmentInfo.startOfSegment + segmentInfo.duration,\n                    isSyncRequest: segmentInfo.isSyncRequest\n                });\n            }\n            return segmentInfo;\n        }\n        stopForError(error) {\n            this.error(error);\n            this.state = 'READY';\n            this.pause();\n            this.trigger('error');\n        }\n        /**\n         * append a decrypted segement to the SourceBuffer through a SourceUpdater\n         *\n         * @private\n         */\n\n        segmentRequestFinished_(error, simpleSegment, result) {\n            if (!this.subtitlesTrack_) {\n                this.state = 'READY';\n                return;\n            }\n            this.saveTransferStats_(simpleSegment.stats); // the request was aborted\n\n            if (!this.pendingSegment_) {\n                this.state = 'READY';\n                this.mediaRequestsAborted += 1;\n                return;\n            }\n            if (error) {\n                if (error.code === REQUEST_ERRORS.TIMEOUT) {\n                    this.handleTimeout_();\n                }\n                if (error.code === REQUEST_ERRORS.ABORTED) {\n                    this.mediaRequestsAborted += 1;\n                } else {\n                    this.mediaRequestsErrored += 1;\n                }\n                this.stopForError(error);\n                return;\n            }\n            const segmentInfo = this.pendingSegment_; // although the VTT segment loader bandwidth isn't really used, it's good to\n            // maintain functionality between segment loaders\n\n            this.saveBandwidthRelatedStats_(segmentInfo.duration, simpleSegment.stats); // if this request included a segment key, save that data in the cache\n\n            if (simpleSegment.key) {\n                this.segmentKey(simpleSegment.key, true);\n            }\n            this.state = 'APPENDING'; // used for tests\n\n            this.trigger('appending');\n            const segment = segmentInfo.segment;\n            if (segment.map) {\n                segment.map.bytes = simpleSegment.map.bytes;\n            }\n            segmentInfo.bytes = simpleSegment.bytes; // Make sure that vttjs has loaded, otherwise, load it and wait till it finished loading\n\n            if (typeof window.WebVTT !== 'function' && typeof this.loadVttJs === 'function') {\n                this.state = 'WAITING_ON_VTTJS'; // should be fine to call multiple times\n                // script will be loaded once but multiple listeners will be added to the queue, which is expected.\n\n                this.loadVttJs().then(() => this.segmentRequestFinished_(error, simpleSegment, result), () => this.stopForError({\n                    message: 'Error loading vtt.js'\n                }));\n                return;\n            }\n            segment.requested = true;\n            try {\n                this.parseVTTCues_(segmentInfo);\n            } catch (e) {\n                this.stopForError({\n                    message: e.message\n                });\n                return;\n            }\n            this.updateTimeMapping_(segmentInfo, this.syncController_.timelines[segmentInfo.timeline], this.playlist_);\n            if (segmentInfo.cues.length) {\n                segmentInfo.timingInfo = {\n                    start: segmentInfo.cues[0].startTime,\n                    end: segmentInfo.cues[segmentInfo.cues.length - 1].endTime\n                };\n            } else {\n                segmentInfo.timingInfo = {\n                    start: segmentInfo.startOfSegment,\n                    end: segmentInfo.startOfSegment + segmentInfo.duration\n                };\n            }\n            if (segmentInfo.isSyncRequest) {\n                this.trigger('syncinfoupdate');\n                this.pendingSegment_ = null;\n                this.state = 'READY';\n                return;\n            }\n            segmentInfo.byteLength = segmentInfo.bytes.byteLength;\n            this.mediaSecondsLoaded += segment.duration; // Create VTTCue instances for each cue in the new segment and add them to\n            // the subtitle track\n\n            segmentInfo.cues.forEach(cue => {\n                this.subtitlesTrack_.addCue(this.featuresNativeTextTracks_ ? new window.VTTCue(cue.startTime, cue.endTime, cue.text) : cue);\n            }); // Remove any duplicate cues from the subtitle track. The WebVTT spec allows\n            // cues to have identical time-intervals, but if the text is also identical\n            // we can safely assume it is a duplicate that can be removed (ex. when a cue\n            // \"overlaps\" VTT segments)\n\n            removeDuplicateCuesFromTrack(this.subtitlesTrack_);\n            this.handleAppendsDone_();\n        }\n        handleData_() {// noop as we shouldn't be getting video/audio data captions\n            // that we do not support here.\n        }\n        updateTimingInfoEnd_() {// noop\n        }\n        /**\n         * Uses the WebVTT parser to parse the segment response\n         *\n         * @throws NoVttJsError\n         *\n         * @param {Object} segmentInfo\n         *        a segment info object that describes the current segment\n         * @private\n         */\n\n        parseVTTCues_(segmentInfo) {\n            let decoder;\n            let decodeBytesToString = false;\n            if (typeof window.WebVTT !== 'function') {\n                // caller is responsible for exception handling.\n                throw new NoVttJsError();\n            }\n            if (typeof window.TextDecoder === 'function') {\n                decoder = new window.TextDecoder('utf8');\n            } else {\n                decoder = window.WebVTT.StringDecoder();\n                decodeBytesToString = true;\n            }\n            const parser = new window.WebVTT.Parser(window, window.vttjs, decoder);\n            segmentInfo.cues = [];\n            segmentInfo.timestampmap = {\n                MPEGTS: 0,\n                LOCAL: 0\n            };\n            parser.oncue = segmentInfo.cues.push.bind(segmentInfo.cues);\n            parser.ontimestampmap = map => {\n                segmentInfo.timestampmap = map;\n            };\n            parser.onparsingerror = error => {\n                videojs.log.warn('Error encountered when parsing cues: ' + error.message);\n            };\n            if (segmentInfo.segment.map) {\n                let mapData = segmentInfo.segment.map.bytes;\n                if (decodeBytesToString) {\n                    mapData = uint8ToUtf8(mapData);\n                }\n                parser.parse(mapData);\n            }\n            let segmentData = segmentInfo.bytes;\n            if (decodeBytesToString) {\n                segmentData = uint8ToUtf8(segmentData);\n            }\n            parser.parse(segmentData);\n            parser.flush();\n        }\n        /**\n         * Updates the start and end times of any cues parsed by the WebVTT parser using\n         * the information parsed from the X-TIMESTAMP-MAP header and a TS to media time mapping\n         * from the SyncController\n         *\n         * @param {Object} segmentInfo\n         *        a segment info object that describes the current segment\n         * @param {Object} mappingObj\n         *        object containing a mapping from TS to media time\n         * @param {Object} playlist\n         *        the playlist object containing the segment\n         * @private\n         */\n\n        updateTimeMapping_(segmentInfo, mappingObj, playlist) {\n            const segment = segmentInfo.segment;\n            if (!mappingObj) {\n                // If the sync controller does not have a mapping of TS to Media Time for the\n                // timeline, then we don't have enough information to update the cue\n                // start/end times\n                return;\n            }\n            if (!segmentInfo.cues.length) {\n                // If there are no cues, we also do not have enough information to figure out\n                // segment timing. Mark that the segment contains no cues so we don't re-request\n                // an empty segment.\n                segment.empty = true;\n                return;\n            }\n            const timestampmap = segmentInfo.timestampmap;\n            const diff = timestampmap.MPEGTS / clock_1 - timestampmap.LOCAL + mappingObj.mapping;\n            segmentInfo.cues.forEach(cue => {\n                // First convert cue time to TS time using the timestamp-map provided within the vtt\n                cue.startTime += diff;\n                cue.endTime += diff;\n            });\n            if (!playlist.syncInfo) {\n                const firstStart = segmentInfo.cues[0].startTime;\n                const lastStart = segmentInfo.cues[segmentInfo.cues.length - 1].startTime;\n                playlist.syncInfo = {\n                    mediaSequence: playlist.mediaSequence + segmentInfo.mediaIndex,\n                    time: Math.min(firstStart, lastStart - segment.duration)\n                };\n            }\n        }\n    }\n\n    /**\n     * @file ad-cue-tags.js\n     */\n    /**\n     * Searches for an ad cue that overlaps with the given mediaTime\n     *\n     * @param {Object} track\n     *        the track to find the cue for\n     *\n     * @param {number} mediaTime\n     *        the time to find the cue at\n     *\n     * @return {Object|null}\n     *         the found cue or null\n     */\n\n    const findAdCue = function (track, mediaTime) {\n        const cues = track.cues;\n        for (let i = 0; i < cues.length; i++) {\n            const cue = cues[i];\n            if (mediaTime >= cue.adStartTime && mediaTime <= cue.adEndTime) {\n                return cue;\n            }\n        }\n        return null;\n    };\n    const updateAdCues = function (media, track, offset = 0) {\n        if (!media.segments) {\n            return;\n        }\n        let mediaTime = offset;\n        let cue;\n        for (let i = 0; i < media.segments.length; i++) {\n            const segment = media.segments[i];\n            if (!cue) {\n                // Since the cues will span for at least the segment duration, adding a fudge\n                // factor of half segment duration will prevent duplicate cues from being\n                // created when timing info is not exact (e.g. cue start time initialized\n                // at 10.006677, but next call mediaTime is 10.003332 )\n                cue = findAdCue(track, mediaTime + segment.duration / 2);\n            }\n            if (cue) {\n                if ('cueIn' in segment) {\n                    // Found a CUE-IN so end the cue\n                    cue.endTime = mediaTime;\n                    cue.adEndTime = mediaTime;\n                    mediaTime += segment.duration;\n                    cue = null;\n                    continue;\n                }\n                if (mediaTime < cue.endTime) {\n                    // Already processed this mediaTime for this cue\n                    mediaTime += segment.duration;\n                    continue;\n                } // otherwise extend cue until a CUE-IN is found\n\n                cue.endTime += segment.duration;\n            } else {\n                if ('cueOut' in segment) {\n                    cue = new window.VTTCue(mediaTime, mediaTime + segment.duration, segment.cueOut);\n                    cue.adStartTime = mediaTime; // Assumes tag format to be\n                    // #EXT-X-CUE-OUT:30\n\n                    cue.adEndTime = mediaTime + parseFloat(segment.cueOut);\n                    track.addCue(cue);\n                }\n                if ('cueOutCont' in segment) {\n                    // Entered into the middle of an ad cue\n                    // Assumes tag formate to be\n                    // #EXT-X-CUE-OUT-CONT:10/30\n                    const [adOffset, adTotal] = segment.cueOutCont.split('/').map(parseFloat);\n                    cue = new window.VTTCue(mediaTime, mediaTime + segment.duration, '');\n                    cue.adStartTime = mediaTime - adOffset;\n                    cue.adEndTime = cue.adStartTime + adTotal;\n                    track.addCue(cue);\n                }\n            }\n            mediaTime += segment.duration;\n        }\n    };\n\n    /**\n     * @file sync-controller.js\n     */\n        // synchronize expired playlist segments.\n        // the max media sequence diff is 48 hours of live stream\n        // content with two second segments. Anything larger than that\n        // will likely be invalid.\n\n    const MAX_MEDIA_SEQUENCE_DIFF_FOR_SYNC = 86400;\n    const syncPointStrategies = [\n        // Stategy \"VOD\": Handle the VOD-case where the sync-point is *always*\n        //                the equivalence display-time 0 === segment-index 0\n        {\n            name: 'VOD',\n            run: (syncController, playlist, duration, currentTimeline, currentTime) => {\n                if (duration !== Infinity) {\n                    const syncPoint = {\n                        time: 0,\n                        segmentIndex: 0,\n                        partIndex: null\n                    };\n                    return syncPoint;\n                }\n                return null;\n            }\n        },\n        // Stategy \"ProgramDateTime\": We have a program-date-time tag in this playlist\n        {\n            name: 'ProgramDateTime',\n            run: (syncController, playlist, duration, currentTimeline, currentTime) => {\n                if (!Object.keys(syncController.timelineToDatetimeMappings).length) {\n                    return null;\n                }\n                let syncPoint = null;\n                let lastDistance = null;\n                const partsAndSegments = getPartsAndSegments(playlist);\n                currentTime = currentTime || 0;\n                for (let i = 0; i < partsAndSegments.length; i++) {\n                    // start from the end and loop backwards for live\n                    // or start from the front and loop forwards for non-live\n                    const index = playlist.endList || currentTime === 0 ? i : partsAndSegments.length - (i + 1);\n                    const partAndSegment = partsAndSegments[index];\n                    const segment = partAndSegment.segment;\n                    const datetimeMapping = syncController.timelineToDatetimeMappings[segment.timeline];\n                    if (!datetimeMapping || !segment.dateTimeObject) {\n                        continue;\n                    }\n                    const segmentTime = segment.dateTimeObject.getTime() / 1000;\n                    let start = segmentTime + datetimeMapping; // take part duration into account.\n\n                    if (segment.parts && typeof partAndSegment.partIndex === 'number') {\n                        for (let z = 0; z < partAndSegment.partIndex; z++) {\n                            start += segment.parts[z].duration;\n                        }\n                    }\n                    const distance = Math.abs(currentTime - start); // Once the distance begins to increase, or if distance is 0, we have passed\n                    // currentTime and can stop looking for better candidates\n\n                    if (lastDistance !== null && (distance === 0 || lastDistance < distance)) {\n                        break;\n                    }\n                    lastDistance = distance;\n                    syncPoint = {\n                        time: start,\n                        segmentIndex: partAndSegment.segmentIndex,\n                        partIndex: partAndSegment.partIndex\n                    };\n                }\n                return syncPoint;\n            }\n        },\n        // Stategy \"Segment\": We have a known time mapping for a timeline and a\n        //                    segment in the current timeline with timing data\n        {\n            name: 'Segment',\n            run: (syncController, playlist, duration, currentTimeline, currentTime) => {\n                let syncPoint = null;\n                let lastDistance = null;\n                currentTime = currentTime || 0;\n                const partsAndSegments = getPartsAndSegments(playlist);\n                for (let i = 0; i < partsAndSegments.length; i++) {\n                    // start from the end and loop backwards for live\n                    // or start from the front and loop forwards for non-live\n                    const index = playlist.endList || currentTime === 0 ? i : partsAndSegments.length - (i + 1);\n                    const partAndSegment = partsAndSegments[index];\n                    const segment = partAndSegment.segment;\n                    const start = partAndSegment.part && partAndSegment.part.start || segment && segment.start;\n                    if (segment.timeline === currentTimeline && typeof start !== 'undefined') {\n                        const distance = Math.abs(currentTime - start); // Once the distance begins to increase, we have passed\n                        // currentTime and can stop looking for better candidates\n\n                        if (lastDistance !== null && lastDistance < distance) {\n                            break;\n                        }\n                        if (!syncPoint || lastDistance === null || lastDistance >= distance) {\n                            lastDistance = distance;\n                            syncPoint = {\n                                time: start,\n                                segmentIndex: partAndSegment.segmentIndex,\n                                partIndex: partAndSegment.partIndex\n                            };\n                        }\n                    }\n                }\n                return syncPoint;\n            }\n        },\n        // Stategy \"Discontinuity\": We have a discontinuity with a known\n        //                          display-time\n        {\n            name: 'Discontinuity',\n            run: (syncController, playlist, duration, currentTimeline, currentTime) => {\n                let syncPoint = null;\n                currentTime = currentTime || 0;\n                if (playlist.discontinuityStarts && playlist.discontinuityStarts.length) {\n                    let lastDistance = null;\n                    for (let i = 0; i < playlist.discontinuityStarts.length; i++) {\n                        const segmentIndex = playlist.discontinuityStarts[i];\n                        const discontinuity = playlist.discontinuitySequence + i + 1;\n                        const discontinuitySync = syncController.discontinuities[discontinuity];\n                        if (discontinuitySync) {\n                            const distance = Math.abs(currentTime - discontinuitySync.time); // Once the distance begins to increase, we have passed\n                            // currentTime and can stop looking for better candidates\n\n                            if (lastDistance !== null && lastDistance < distance) {\n                                break;\n                            }\n                            if (!syncPoint || lastDistance === null || lastDistance >= distance) {\n                                lastDistance = distance;\n                                syncPoint = {\n                                    time: discontinuitySync.time,\n                                    segmentIndex,\n                                    partIndex: null\n                                };\n                            }\n                        }\n                    }\n                }\n                return syncPoint;\n            }\n        },\n        // Stategy \"Playlist\": We have a playlist with a known mapping of\n        //                     segment index to display time\n        {\n            name: 'Playlist',\n            run: (syncController, playlist, duration, currentTimeline, currentTime) => {\n                if (playlist.syncInfo) {\n                    const syncPoint = {\n                        time: playlist.syncInfo.time,\n                        segmentIndex: playlist.syncInfo.mediaSequence - playlist.mediaSequence,\n                        partIndex: null\n                    };\n                    return syncPoint;\n                }\n                return null;\n            }\n        }];\n    class SyncController extends videojs.EventTarget {\n        constructor(options = {}) {\n            super(); // ...for synching across variants\n\n            this.timelines = [];\n            this.discontinuities = [];\n            this.timelineToDatetimeMappings = {};\n            this.logger_ = logger('SyncController');\n        }\n        /**\n         * Find a sync-point for the playlist specified\n         *\n         * A sync-point is defined as a known mapping from display-time to\n         * a segment-index in the current playlist.\n         *\n         * @param {Playlist} playlist\n         *        The playlist that needs a sync-point\n         * @param {number} duration\n         *        Duration of the MediaSource (Infinite if playing a live source)\n         * @param {number} currentTimeline\n         *        The last timeline from which a segment was loaded\n         * @return {Object}\n         *          A sync-point object\n         */\n\n        getSyncPoint(playlist, duration, currentTimeline, currentTime) {\n            const syncPoints = this.runStrategies_(playlist, duration, currentTimeline, currentTime);\n            if (!syncPoints.length) {\n                // Signal that we need to attempt to get a sync-point manually\n                // by fetching a segment in the playlist and constructing\n                // a sync-point from that information\n                return null;\n            } // Now find the sync-point that is closest to the currentTime because\n            // that should result in the most accurate guess about which segment\n            // to fetch\n\n            return this.selectSyncPoint_(syncPoints, {\n                key: 'time',\n                value: currentTime\n            });\n        }\n        /**\n         * Calculate the amount of time that has expired off the playlist during playback\n         *\n         * @param {Playlist} playlist\n         *        Playlist object to calculate expired from\n         * @param {number} duration\n         *        Duration of the MediaSource (Infinity if playling a live source)\n         * @return {number|null}\n         *          The amount of time that has expired off the playlist during playback. Null\n         *          if no sync-points for the playlist can be found.\n         */\n\n        getExpiredTime(playlist, duration) {\n            if (!playlist || !playlist.segments) {\n                return null;\n            }\n            const syncPoints = this.runStrategies_(playlist, duration, playlist.discontinuitySequence, 0); // Without sync-points, there is not enough information to determine the expired time\n\n            if (!syncPoints.length) {\n                return null;\n            }\n            const syncPoint = this.selectSyncPoint_(syncPoints, {\n                key: 'segmentIndex',\n                value: 0\n            }); // If the sync-point is beyond the start of the playlist, we want to subtract the\n            // duration from index 0 to syncPoint.segmentIndex instead of adding.\n\n            if (syncPoint.segmentIndex > 0) {\n                syncPoint.time *= -1;\n            }\n            return Math.abs(syncPoint.time + sumDurations({\n                defaultDuration: playlist.targetDuration,\n                durationList: playlist.segments,\n                startIndex: syncPoint.segmentIndex,\n                endIndex: 0\n            }));\n        }\n        /**\n         * Runs each sync-point strategy and returns a list of sync-points returned by the\n         * strategies\n         *\n         * @private\n         * @param {Playlist} playlist\n         *        The playlist that needs a sync-point\n         * @param {number} duration\n         *        Duration of the MediaSource (Infinity if playing a live source)\n         * @param {number} currentTimeline\n         *        The last timeline from which a segment was loaded\n         * @return {Array}\n         *          A list of sync-point objects\n         */\n\n        runStrategies_(playlist, duration, currentTimeline, currentTime) {\n            const syncPoints = []; // Try to find a sync-point in by utilizing various strategies...\n\n            for (let i = 0; i < syncPointStrategies.length; i++) {\n                const strategy = syncPointStrategies[i];\n                const syncPoint = strategy.run(this, playlist, duration, currentTimeline, currentTime);\n                if (syncPoint) {\n                    syncPoint.strategy = strategy.name;\n                    syncPoints.push({\n                        strategy: strategy.name,\n                        syncPoint\n                    });\n                }\n            }\n            return syncPoints;\n        }\n        /**\n         * Selects the sync-point nearest the specified target\n         *\n         * @private\n         * @param {Array} syncPoints\n         *        List of sync-points to select from\n         * @param {Object} target\n         *        Object specifying the property and value we are targeting\n         * @param {string} target.key\n         *        Specifies the property to target. Must be either 'time' or 'segmentIndex'\n         * @param {number} target.value\n         *        The value to target for the specified key.\n         * @return {Object}\n         *          The sync-point nearest the target\n         */\n\n        selectSyncPoint_(syncPoints, target) {\n            let bestSyncPoint = syncPoints[0].syncPoint;\n            let bestDistance = Math.abs(syncPoints[0].syncPoint[target.key] - target.value);\n            let bestStrategy = syncPoints[0].strategy;\n            for (let i = 1; i < syncPoints.length; i++) {\n                const newDistance = Math.abs(syncPoints[i].syncPoint[target.key] - target.value);\n                if (newDistance < bestDistance) {\n                    bestDistance = newDistance;\n                    bestSyncPoint = syncPoints[i].syncPoint;\n                    bestStrategy = syncPoints[i].strategy;\n                }\n            }\n            this.logger_(`syncPoint for [${target.key}: ${target.value}] chosen with strategy` + ` [${bestStrategy}]: [time:${bestSyncPoint.time},` + ` segmentIndex:${bestSyncPoint.segmentIndex}` + (typeof bestSyncPoint.partIndex === 'number' ? `,partIndex:${bestSyncPoint.partIndex}` : '') + ']');\n            return bestSyncPoint;\n        }\n        /**\n         * Save any meta-data present on the segments when segments leave\n         * the live window to the playlist to allow for synchronization at the\n         * playlist level later.\n         *\n         * @param {Playlist} oldPlaylist - The previous active playlist\n         * @param {Playlist} newPlaylist - The updated and most current playlist\n         */\n\n        saveExpiredSegmentInfo(oldPlaylist, newPlaylist) {\n            const mediaSequenceDiff = newPlaylist.mediaSequence - oldPlaylist.mediaSequence; // Ignore large media sequence gaps\n\n            if (mediaSequenceDiff > MAX_MEDIA_SEQUENCE_DIFF_FOR_SYNC) {\n                videojs.log.warn(`Not saving expired segment info. Media sequence gap ${mediaSequenceDiff} is too large.`);\n                return;\n            } // When a segment expires from the playlist and it has a start time\n            // save that information as a possible sync-point reference in future\n\n            for (let i = mediaSequenceDiff - 1; i >= 0; i--) {\n                const lastRemovedSegment = oldPlaylist.segments[i];\n                if (lastRemovedSegment && typeof lastRemovedSegment.start !== 'undefined') {\n                    newPlaylist.syncInfo = {\n                        mediaSequence: oldPlaylist.mediaSequence + i,\n                        time: lastRemovedSegment.start\n                    };\n                    this.logger_(`playlist refresh sync: [time:${newPlaylist.syncInfo.time},` + ` mediaSequence: ${newPlaylist.syncInfo.mediaSequence}]`);\n                    this.trigger('syncinfoupdate');\n                    break;\n                }\n            }\n        }\n        /**\n         * Save the mapping from playlist's ProgramDateTime to display. This should only happen\n         * before segments start to load.\n         *\n         * @param {Playlist} playlist - The currently active playlist\n         */\n\n        setDateTimeMappingForStart(playlist) {\n            // It's possible for the playlist to be updated before playback starts, meaning time\n            // zero is not yet set. If, during these playlist refreshes, a discontinuity is\n            // crossed, then the old time zero mapping (for the prior timeline) would be retained\n            // unless the mappings are cleared.\n            this.timelineToDatetimeMappings = {};\n            if (playlist.segments && playlist.segments.length && playlist.segments[0].dateTimeObject) {\n                const firstSegment = playlist.segments[0];\n                const playlistTimestamp = firstSegment.dateTimeObject.getTime() / 1000;\n                this.timelineToDatetimeMappings[firstSegment.timeline] = -playlistTimestamp;\n            }\n        }\n        /**\n         * Calculates and saves timeline mappings, playlist sync info, and segment timing values\n         * based on the latest timing information.\n         *\n         * @param {Object} options\n         *        Options object\n         * @param {SegmentInfo} options.segmentInfo\n         *        The current active request information\n         * @param {boolean} options.shouldSaveTimelineMapping\n         *        If there's a timeline change, determines if the timeline mapping should be\n         *        saved for timeline mapping and program date time mappings.\n         */\n\n        saveSegmentTimingInfo({\n                                  segmentInfo,\n                                  shouldSaveTimelineMapping\n                              }) {\n            const didCalculateSegmentTimeMapping = this.calculateSegmentTimeMapping_(segmentInfo, segmentInfo.timingInfo, shouldSaveTimelineMapping);\n            const segment = segmentInfo.segment;\n            if (didCalculateSegmentTimeMapping) {\n                this.saveDiscontinuitySyncInfo_(segmentInfo); // If the playlist does not have sync information yet, record that information\n                // now with segment timing information\n\n                if (!segmentInfo.playlist.syncInfo) {\n                    segmentInfo.playlist.syncInfo = {\n                        mediaSequence: segmentInfo.playlist.mediaSequence + segmentInfo.mediaIndex,\n                        time: segment.start\n                    };\n                }\n            }\n            const dateTime = segment.dateTimeObject;\n            if (segment.discontinuity && shouldSaveTimelineMapping && dateTime) {\n                this.timelineToDatetimeMappings[segment.timeline] = -(dateTime.getTime() / 1000);\n            }\n        }\n        timestampOffsetForTimeline(timeline) {\n            if (typeof this.timelines[timeline] === 'undefined') {\n                return null;\n            }\n            return this.timelines[timeline].time;\n        }\n        mappingForTimeline(timeline) {\n            if (typeof this.timelines[timeline] === 'undefined') {\n                return null;\n            }\n            return this.timelines[timeline].mapping;\n        }\n        /**\n         * Use the \"media time\" for a segment to generate a mapping to \"display time\" and\n         * save that display time to the segment.\n         *\n         * @private\n         * @param {SegmentInfo} segmentInfo\n         *        The current active request information\n         * @param {Object} timingInfo\n         *        The start and end time of the current segment in \"media time\"\n         * @param {boolean} shouldSaveTimelineMapping\n         *        If there's a timeline change, determines if the timeline mapping should be\n         *        saved in timelines.\n         * @return {boolean}\n         *          Returns false if segment time mapping could not be calculated\n         */\n\n        calculateSegmentTimeMapping_(segmentInfo, timingInfo, shouldSaveTimelineMapping) {\n            // TODO: remove side effects\n            const segment = segmentInfo.segment;\n            const part = segmentInfo.part;\n            let mappingObj = this.timelines[segmentInfo.timeline];\n            let start;\n            let end;\n            if (typeof segmentInfo.timestampOffset === 'number') {\n                mappingObj = {\n                    time: segmentInfo.startOfSegment,\n                    mapping: segmentInfo.startOfSegment - timingInfo.start\n                };\n                if (shouldSaveTimelineMapping) {\n                    this.timelines[segmentInfo.timeline] = mappingObj;\n                    this.trigger('timestampoffset');\n                    this.logger_(`time mapping for timeline ${segmentInfo.timeline}: ` + `[time: ${mappingObj.time}] [mapping: ${mappingObj.mapping}]`);\n                }\n                start = segmentInfo.startOfSegment;\n                end = timingInfo.end + mappingObj.mapping;\n            } else if (mappingObj) {\n                start = timingInfo.start + mappingObj.mapping;\n                end = timingInfo.end + mappingObj.mapping;\n            } else {\n                return false;\n            }\n            if (part) {\n                part.start = start;\n                part.end = end;\n            } // If we don't have a segment start yet or the start value we got\n            // is less than our current segment.start value, save a new start value.\n            // We have to do this because parts will have segment timing info saved\n            // multiple times and we want segment start to be the earliest part start\n            // value for that segment.\n\n            if (!segment.start || start < segment.start) {\n                segment.start = start;\n            }\n            segment.end = end;\n            return true;\n        }\n        /**\n         * Each time we have discontinuity in the playlist, attempt to calculate the location\n         * in display of the start of the discontinuity and save that. We also save an accuracy\n         * value so that we save values with the most accuracy (closest to 0.)\n         *\n         * @private\n         * @param {SegmentInfo} segmentInfo - The current active request information\n         */\n\n        saveDiscontinuitySyncInfo_(segmentInfo) {\n            const playlist = segmentInfo.playlist;\n            const segment = segmentInfo.segment; // If the current segment is a discontinuity then we know exactly where\n            // the start of the range and it's accuracy is 0 (greater accuracy values\n            // mean more approximation)\n\n            if (segment.discontinuity) {\n                this.discontinuities[segment.timeline] = {\n                    time: segment.start,\n                    accuracy: 0\n                };\n            } else if (playlist.discontinuityStarts && playlist.discontinuityStarts.length) {\n                // Search for future discontinuities that we can provide better timing\n                // information for and save that information for sync purposes\n                for (let i = 0; i < playlist.discontinuityStarts.length; i++) {\n                    const segmentIndex = playlist.discontinuityStarts[i];\n                    const discontinuity = playlist.discontinuitySequence + i + 1;\n                    const mediaIndexDiff = segmentIndex - segmentInfo.mediaIndex;\n                    const accuracy = Math.abs(mediaIndexDiff);\n                    if (!this.discontinuities[discontinuity] || this.discontinuities[discontinuity].accuracy > accuracy) {\n                        let time;\n                        if (mediaIndexDiff < 0) {\n                            time = segment.start - sumDurations({\n                                defaultDuration: playlist.targetDuration,\n                                durationList: playlist.segments,\n                                startIndex: segmentInfo.mediaIndex,\n                                endIndex: segmentIndex\n                            });\n                        } else {\n                            time = segment.end + sumDurations({\n                                defaultDuration: playlist.targetDuration,\n                                durationList: playlist.segments,\n                                startIndex: segmentInfo.mediaIndex + 1,\n                                endIndex: segmentIndex\n                            });\n                        }\n                        this.discontinuities[discontinuity] = {\n                            time,\n                            accuracy\n                        };\n                    }\n                }\n            }\n        }\n        dispose() {\n            this.trigger('dispose');\n            this.off();\n        }\n    }\n\n    /**\n     * The TimelineChangeController acts as a source for segment loaders to listen for and\n     * keep track of latest and pending timeline changes. This is useful to ensure proper\n     * sync, as each loader may need to make a consideration for what timeline the other\n     * loader is on before making changes which could impact the other loader's media.\n     *\n     * @class TimelineChangeController\n     * @extends videojs.EventTarget\n     */\n\n    class TimelineChangeController extends videojs.EventTarget {\n        constructor() {\n            super();\n            this.pendingTimelineChanges_ = {};\n            this.lastTimelineChanges_ = {};\n        }\n        clearPendingTimelineChange(type) {\n            this.pendingTimelineChanges_[type] = null;\n            this.trigger('pendingtimelinechange');\n        }\n        pendingTimelineChange({\n                                  type,\n                                  from,\n                                  to\n                              }) {\n            if (typeof from === 'number' && typeof to === 'number') {\n                this.pendingTimelineChanges_[type] = {\n                    type,\n                    from,\n                    to\n                };\n                this.trigger('pendingtimelinechange');\n            }\n            return this.pendingTimelineChanges_[type];\n        }\n        lastTimelineChange({\n                               type,\n                               from,\n                               to\n                           }) {\n            if (typeof from === 'number' && typeof to === 'number') {\n                this.lastTimelineChanges_[type] = {\n                    type,\n                    from,\n                    to\n                };\n                delete this.pendingTimelineChanges_[type];\n                this.trigger('timelinechange');\n            }\n            return this.lastTimelineChanges_[type];\n        }\n        dispose() {\n            this.trigger('dispose');\n            this.pendingTimelineChanges_ = {};\n            this.lastTimelineChanges_ = {};\n            this.off();\n        }\n    }\n\n    /* rollup-plugin-worker-factory start for worker!/Users/ddashkevich/projects/http-streaming/src/decrypter-worker.js */\n    const workerCode = transform(getWorkerString(function () {\n        /**\n         * @file stream.js\n         */\n\n        /**\n         * A lightweight readable stream implemention that handles event dispatching.\n         *\n         * @class Stream\n         */\n\n        var Stream = /*#__PURE__*/function () {\n            function Stream() {\n                this.listeners = {};\n            }\n            /**\n             * Add a listener for a specified event type.\n             *\n             * @param {string} type the event name\n             * @param {Function} listener the callback to be invoked when an event of\n             * the specified type occurs\n             */\n\n            var _proto = Stream.prototype;\n            _proto.on = function on(type, listener) {\n                if (!this.listeners[type]) {\n                    this.listeners[type] = [];\n                }\n                this.listeners[type].push(listener);\n            }\n            /**\n             * Remove a listener for a specified event type.\n             *\n             * @param {string} type the event name\n             * @param {Function} listener  a function previously registered for this\n             * type of event through `on`\n             * @return {boolean} if we could turn it off or not\n             */;\n\n            _proto.off = function off(type, listener) {\n                if (!this.listeners[type]) {\n                    return false;\n                }\n                var index = this.listeners[type].indexOf(listener); // TODO: which is better?\n                // In Video.js we slice listener functions\n                // on trigger so that it does not mess up the order\n                // while we loop through.\n                //\n                // Here we slice on off so that the loop in trigger\n                // can continue using it's old reference to loop without\n                // messing up the order.\n\n                this.listeners[type] = this.listeners[type].slice(0);\n                this.listeners[type].splice(index, 1);\n                return index > -1;\n            }\n            /**\n             * Trigger an event of the specified type on this stream. Any additional\n             * arguments to this function are passed as parameters to event listeners.\n             *\n             * @param {string} type the event name\n             */;\n\n            _proto.trigger = function trigger(type) {\n                var callbacks = this.listeners[type];\n                if (!callbacks) {\n                    return;\n                } // Slicing the arguments on every invocation of this method\n                // can add a significant amount of overhead. Avoid the\n                // intermediate object creation for the common case of a\n                // single callback argument\n\n                if (arguments.length === 2) {\n                    var length = callbacks.length;\n                    for (var i = 0; i < length; ++i) {\n                        callbacks[i].call(this, arguments[1]);\n                    }\n                } else {\n                    var args = Array.prototype.slice.call(arguments, 1);\n                    var _length = callbacks.length;\n                    for (var _i = 0; _i < _length; ++_i) {\n                        callbacks[_i].apply(this, args);\n                    }\n                }\n            }\n            /**\n             * Destroys the stream and cleans up.\n             */;\n\n            _proto.dispose = function dispose() {\n                this.listeners = {};\n            }\n            /**\n             * Forwards all `data` events on this stream to the destination stream. The\n             * destination stream should provide a method `push` to receive the data\n             * events as they arrive.\n             *\n             * @param {Stream} destination the stream that will receive all `data` events\n             * @see http://nodejs.org/api/stream.html#stream_readable_pipe_destination_options\n             */;\n\n            _proto.pipe = function pipe(destination) {\n                this.on('data', function (data) {\n                    destination.push(data);\n                });\n            };\n            return Stream;\n        }();\n        /*! @name pkcs7 @version 1.0.4 @license Apache-2.0 */\n\n        /**\n         * Returns the subarray of a Uint8Array without PKCS#7 padding.\n         *\n         * @param padded {Uint8Array} unencrypted bytes that have been padded\n         * @return {Uint8Array} the unpadded bytes\n         * @see http://tools.ietf.org/html/rfc5652\n         */\n\n        function unpad(padded) {\n            return padded.subarray(0, padded.byteLength - padded[padded.byteLength - 1]);\n        }\n        /*! @name aes-decrypter @version 4.0.1 @license Apache-2.0 */\n\n        /**\n         * @file aes.js\n         *\n         * This file contains an adaptation of the AES decryption algorithm\n         * from the Standford Javascript Cryptography Library. That work is\n         * covered by the following copyright and permissions notice:\n         *\n         * Copyright 2009-2010 Emily Stark, Mike Hamburg, Dan Boneh.\n         * All rights reserved.\n         *\n         * Redistribution and use in source and binary forms, with or without\n         * modification, are permitted provided that the following conditions are\n         * met:\n         *\n         * 1. Redistributions of source code must retain the above copyright\n         *    notice, this list of conditions and the following disclaimer.\n         *\n         * 2. Redistributions in binary form must reproduce the above\n         *    copyright notice, this list of conditions and the following\n         *    disclaimer in the documentation and/or other materials provided\n         *    with the distribution.\n         *\n         * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR\n         * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n         * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE\n         * DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> OR CONTRIBUTORS BE\n         * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR\n         * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF\n         * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR\n         * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n         * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE\n         * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN\n         * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.\n         *\n         * The views and conclusions contained in the software and documentation\n         * are those of the authors and should not be interpreted as representing\n         * official policies, either expressed or implied, of the authors.\n         */\n\n        /**\n         * Expand the S-box tables.\n         *\n         * @private\n         */\n\n        const precompute = function () {\n            const tables = [[[], [], [], [], []], [[], [], [], [], []]];\n            const encTable = tables[0];\n            const decTable = tables[1];\n            const sbox = encTable[4];\n            const sboxInv = decTable[4];\n            let i;\n            let x;\n            let xInv;\n            const d = [];\n            const th = [];\n            let x2;\n            let x4;\n            let x8;\n            let s;\n            let tEnc;\n            let tDec; // Compute double and third tables\n\n            for (i = 0; i < 256; i++) {\n                th[(d[i] = i << 1 ^ (i >> 7) * 283) ^ i] = i;\n            }\n            for (x = xInv = 0; !sbox[x]; x ^= x2 || 1, xInv = th[xInv] || 1) {\n                // Compute sbox\n                s = xInv ^ xInv << 1 ^ xInv << 2 ^ xInv << 3 ^ xInv << 4;\n                s = s >> 8 ^ s & 255 ^ 99;\n                sbox[x] = s;\n                sboxInv[s] = x; // Compute MixColumns\n\n                x8 = d[x4 = d[x2 = d[x]]];\n                tDec = x8 * 0x1010101 ^ x4 * 0x10001 ^ x2 * 0x101 ^ x * 0x1010100;\n                tEnc = d[s] * 0x101 ^ s * 0x1010100;\n                for (i = 0; i < 4; i++) {\n                    encTable[i][x] = tEnc = tEnc << 24 ^ tEnc >>> 8;\n                    decTable[i][s] = tDec = tDec << 24 ^ tDec >>> 8;\n                }\n            } // Compactify. Considerable speedup on Firefox.\n\n            for (i = 0; i < 5; i++) {\n                encTable[i] = encTable[i].slice(0);\n                decTable[i] = decTable[i].slice(0);\n            }\n            return tables;\n        };\n        let aesTables = null;\n        /**\n         * Schedule out an AES key for both encryption and decryption. This\n         * is a low-level class. Use a cipher mode to do bulk encryption.\n         *\n         * @class AES\n         * @param key {Array} The key as an array of 4, 6 or 8 words.\n         */\n\n        class AES {\n            constructor(key) {\n                /**\n                 * The expanded S-box and inverse S-box tables. These will be computed\n                 * on the client so that we don't have to send them down the wire.\n                 *\n                 * There are two tables, _tables[0] is for encryption and\n                 * _tables[1] is for decryption.\n                 *\n                 * The first 4 sub-tables are the expanded S-box with MixColumns. The\n                 * last (_tables[01][4]) is the S-box itself.\n                 *\n                 * @private\n                 */\n                // if we have yet to precompute the S-box tables\n                // do so now\n                if (!aesTables) {\n                    aesTables = precompute();\n                } // then make a copy of that object for use\n\n                this._tables = [[aesTables[0][0].slice(), aesTables[0][1].slice(), aesTables[0][2].slice(), aesTables[0][3].slice(), aesTables[0][4].slice()], [aesTables[1][0].slice(), aesTables[1][1].slice(), aesTables[1][2].slice(), aesTables[1][3].slice(), aesTables[1][4].slice()]];\n                let i;\n                let j;\n                let tmp;\n                const sbox = this._tables[0][4];\n                const decTable = this._tables[1];\n                const keyLen = key.length;\n                let rcon = 1;\n                if (keyLen !== 4 && keyLen !== 6 && keyLen !== 8) {\n                    throw new Error('Invalid aes key size');\n                }\n                const encKey = key.slice(0);\n                const decKey = [];\n                this._key = [encKey, decKey]; // schedule encryption keys\n\n                for (i = keyLen; i < 4 * keyLen + 28; i++) {\n                    tmp = encKey[i - 1]; // apply sbox\n\n                    if (i % keyLen === 0 || keyLen === 8 && i % keyLen === 4) {\n                        tmp = sbox[tmp >>> 24] << 24 ^ sbox[tmp >> 16 & 255] << 16 ^ sbox[tmp >> 8 & 255] << 8 ^ sbox[tmp & 255]; // shift rows and add rcon\n\n                        if (i % keyLen === 0) {\n                            tmp = tmp << 8 ^ tmp >>> 24 ^ rcon << 24;\n                            rcon = rcon << 1 ^ (rcon >> 7) * 283;\n                        }\n                    }\n                    encKey[i] = encKey[i - keyLen] ^ tmp;\n                } // schedule decryption keys\n\n                for (j = 0; i; j++, i--) {\n                    tmp = encKey[j & 3 ? i : i - 4];\n                    if (i <= 4 || j < 4) {\n                        decKey[j] = tmp;\n                    } else {\n                        decKey[j] = decTable[0][sbox[tmp >>> 24]] ^ decTable[1][sbox[tmp >> 16 & 255]] ^ decTable[2][sbox[tmp >> 8 & 255]] ^ decTable[3][sbox[tmp & 255]];\n                    }\n                }\n            }\n            /**\n             * Decrypt 16 bytes, specified as four 32-bit words.\n             *\n             * @param {number} encrypted0 the first word to decrypt\n             * @param {number} encrypted1 the second word to decrypt\n             * @param {number} encrypted2 the third word to decrypt\n             * @param {number} encrypted3 the fourth word to decrypt\n             * @param {Int32Array} out the array to write the decrypted words\n             * into\n             * @param {number} offset the offset into the output array to start\n             * writing results\n             * @return {Array} The plaintext.\n             */\n\n            decrypt(encrypted0, encrypted1, encrypted2, encrypted3, out, offset) {\n                const key = this._key[1]; // state variables a,b,c,d are loaded with pre-whitened data\n\n                let a = encrypted0 ^ key[0];\n                let b = encrypted3 ^ key[1];\n                let c = encrypted2 ^ key[2];\n                let d = encrypted1 ^ key[3];\n                let a2;\n                let b2;\n                let c2; // key.length === 2 ?\n\n                const nInnerRounds = key.length / 4 - 2;\n                let i;\n                let kIndex = 4;\n                const table = this._tables[1]; // load up the tables\n\n                const table0 = table[0];\n                const table1 = table[1];\n                const table2 = table[2];\n                const table3 = table[3];\n                const sbox = table[4]; // Inner rounds. Cribbed from OpenSSL.\n\n                for (i = 0; i < nInnerRounds; i++) {\n                    a2 = table0[a >>> 24] ^ table1[b >> 16 & 255] ^ table2[c >> 8 & 255] ^ table3[d & 255] ^ key[kIndex];\n                    b2 = table0[b >>> 24] ^ table1[c >> 16 & 255] ^ table2[d >> 8 & 255] ^ table3[a & 255] ^ key[kIndex + 1];\n                    c2 = table0[c >>> 24] ^ table1[d >> 16 & 255] ^ table2[a >> 8 & 255] ^ table3[b & 255] ^ key[kIndex + 2];\n                    d = table0[d >>> 24] ^ table1[a >> 16 & 255] ^ table2[b >> 8 & 255] ^ table3[c & 255] ^ key[kIndex + 3];\n                    kIndex += 4;\n                    a = a2;\n                    b = b2;\n                    c = c2;\n                } // Last round.\n\n                for (i = 0; i < 4; i++) {\n                    out[(3 & -i) + offset] = sbox[a >>> 24] << 24 ^ sbox[b >> 16 & 255] << 16 ^ sbox[c >> 8 & 255] << 8 ^ sbox[d & 255] ^ key[kIndex++];\n                    a2 = a;\n                    a = b;\n                    b = c;\n                    c = d;\n                    d = a2;\n                }\n            }\n        }\n        /**\n         * @file async-stream.js\n         */\n\n        /**\n         * A wrapper around the Stream class to use setTimeout\n         * and run stream \"jobs\" Asynchronously\n         *\n         * @class AsyncStream\n         * @extends Stream\n         */\n\n        class AsyncStream extends Stream {\n            constructor() {\n                super(Stream);\n                this.jobs = [];\n                this.delay = 1;\n                this.timeout_ = null;\n            }\n            /**\n             * process an async job\n             *\n             * @private\n             */\n\n            processJob_() {\n                this.jobs.shift()();\n                if (this.jobs.length) {\n                    this.timeout_ = setTimeout(this.processJob_.bind(this), this.delay);\n                } else {\n                    this.timeout_ = null;\n                }\n            }\n            /**\n             * push a job into the stream\n             *\n             * @param {Function} job the job to push into the stream\n             */\n\n            push(job) {\n                this.jobs.push(job);\n                if (!this.timeout_) {\n                    this.timeout_ = setTimeout(this.processJob_.bind(this), this.delay);\n                }\n            }\n        }\n        /**\n         * @file decrypter.js\n         *\n         * An asynchronous implementation of AES-128 CBC decryption with\n         * PKCS#7 padding.\n         */\n\n        /**\n         * Convert network-order (big-endian) bytes into their little-endian\n         * representation.\n         */\n\n        const ntoh = function (word) {\n            return word << 24 | (word & 0xff00) << 8 | (word & 0xff0000) >> 8 | word >>> 24;\n        };\n        /**\n         * Decrypt bytes using AES-128 with CBC and PKCS#7 padding.\n         *\n         * @param {Uint8Array} encrypted the encrypted bytes\n         * @param {Uint32Array} key the bytes of the decryption key\n         * @param {Uint32Array} initVector the initialization vector (IV) to\n         * use for the first round of CBC.\n         * @return {Uint8Array} the decrypted bytes\n         *\n         * @see http://en.wikipedia.org/wiki/Advanced_Encryption_Standard\n         * @see http://en.wikipedia.org/wiki/Block_cipher_mode_of_operation#Cipher_Block_Chaining_.28CBC.29\n         * @see https://tools.ietf.org/html/rfc2315\n         */\n\n        const decrypt = function (encrypted, key, initVector) {\n            // word-level access to the encrypted bytes\n            const encrypted32 = new Int32Array(encrypted.buffer, encrypted.byteOffset, encrypted.byteLength >> 2);\n            const decipher = new AES(Array.prototype.slice.call(key)); // byte and word-level access for the decrypted output\n\n            const decrypted = new Uint8Array(encrypted.byteLength);\n            const decrypted32 = new Int32Array(decrypted.buffer); // temporary variables for working with the IV, encrypted, and\n            // decrypted data\n\n            let init0;\n            let init1;\n            let init2;\n            let init3;\n            let encrypted0;\n            let encrypted1;\n            let encrypted2;\n            let encrypted3; // iteration variable\n\n            let wordIx; // pull out the words of the IV to ensure we don't modify the\n            // passed-in reference and easier access\n\n            init0 = initVector[0];\n            init1 = initVector[1];\n            init2 = initVector[2];\n            init3 = initVector[3]; // decrypt four word sequences, applying cipher-block chaining (CBC)\n            // to each decrypted block\n\n            for (wordIx = 0; wordIx < encrypted32.length; wordIx += 4) {\n                // convert big-endian (network order) words into little-endian\n                // (javascript order)\n                encrypted0 = ntoh(encrypted32[wordIx]);\n                encrypted1 = ntoh(encrypted32[wordIx + 1]);\n                encrypted2 = ntoh(encrypted32[wordIx + 2]);\n                encrypted3 = ntoh(encrypted32[wordIx + 3]); // decrypt the block\n\n                decipher.decrypt(encrypted0, encrypted1, encrypted2, encrypted3, decrypted32, wordIx); // XOR with the IV, and restore network byte-order to obtain the\n                // plaintext\n\n                decrypted32[wordIx] = ntoh(decrypted32[wordIx] ^ init0);\n                decrypted32[wordIx + 1] = ntoh(decrypted32[wordIx + 1] ^ init1);\n                decrypted32[wordIx + 2] = ntoh(decrypted32[wordIx + 2] ^ init2);\n                decrypted32[wordIx + 3] = ntoh(decrypted32[wordIx + 3] ^ init3); // setup the IV for the next round\n\n                init0 = encrypted0;\n                init1 = encrypted1;\n                init2 = encrypted2;\n                init3 = encrypted3;\n            }\n            return decrypted;\n        };\n        /**\n         * The `Decrypter` class that manages decryption of AES\n         * data through `AsyncStream` objects and the `decrypt`\n         * function\n         *\n         * @param {Uint8Array} encrypted the encrypted bytes\n         * @param {Uint32Array} key the bytes of the decryption key\n         * @param {Uint32Array} initVector the initialization vector (IV) to\n         * @param {Function} done the function to run when done\n         * @class Decrypter\n         */\n\n        class Decrypter {\n            constructor(encrypted, key, initVector, done) {\n                const step = Decrypter.STEP;\n                const encrypted32 = new Int32Array(encrypted.buffer);\n                const decrypted = new Uint8Array(encrypted.byteLength);\n                let i = 0;\n                this.asyncStream_ = new AsyncStream(); // split up the encryption job and do the individual chunks asynchronously\n\n                this.asyncStream_.push(this.decryptChunk_(encrypted32.subarray(i, i + step), key, initVector, decrypted));\n                for (i = step; i < encrypted32.length; i += step) {\n                    initVector = new Uint32Array([ntoh(encrypted32[i - 4]), ntoh(encrypted32[i - 3]), ntoh(encrypted32[i - 2]), ntoh(encrypted32[i - 1])]);\n                    this.asyncStream_.push(this.decryptChunk_(encrypted32.subarray(i, i + step), key, initVector, decrypted));\n                } // invoke the done() callback when everything is finished\n\n                this.asyncStream_.push(function () {\n                    // remove pkcs#7 padding from the decrypted bytes\n                    done(null, unpad(decrypted));\n                });\n            }\n            /**\n             * a getter for step the maximum number of bytes to process at one time\n             *\n             * @return {number} the value of step 32000\n             */\n\n            static get STEP() {\n                // 4 * 8000;\n                return 32000;\n            }\n            /**\n             * @private\n             */\n\n            decryptChunk_(encrypted, key, initVector, decrypted) {\n                return function () {\n                    const bytes = decrypt(encrypted, key, initVector);\n                    decrypted.set(bytes, encrypted.byteOffset);\n                };\n            }\n        }\n        var commonjsGlobal = typeof globalThis !== 'undefined' ? globalThis : typeof window !== 'undefined' ? window : typeof global !== 'undefined' ? global : typeof self !== 'undefined' ? self : {};\n        var win;\n        if (typeof window !== \"undefined\") {\n            win = window;\n        } else if (typeof commonjsGlobal !== \"undefined\") {\n            win = commonjsGlobal;\n        } else if (typeof self !== \"undefined\") {\n            win = self;\n        } else {\n            win = {};\n        }\n        var window_1 = win;\n        var isArrayBufferView = function isArrayBufferView(obj) {\n            if (ArrayBuffer.isView === 'function') {\n                return ArrayBuffer.isView(obj);\n            }\n            return obj && obj.buffer instanceof ArrayBuffer;\n        };\n        var BigInt = window_1.BigInt || Number;\n        [BigInt('0x1'), BigInt('0x100'), BigInt('0x10000'), BigInt('0x1000000'), BigInt('0x100000000'), BigInt('0x10000000000'), BigInt('0x1000000000000'), BigInt('0x100000000000000'), BigInt('0x10000000000000000')];\n        (function () {\n            var a = new Uint16Array([0xFFCC]);\n            var b = new Uint8Array(a.buffer, a.byteOffset, a.byteLength);\n            if (b[0] === 0xFF) {\n                return 'big';\n            }\n            if (b[0] === 0xCC) {\n                return 'little';\n            }\n            return 'unknown';\n        })();\n        /**\n         * Creates an object for sending to a web worker modifying properties that are TypedArrays\n         * into a new object with seperated properties for the buffer, byteOffset, and byteLength.\n         *\n         * @param {Object} message\n         *        Object of properties and values to send to the web worker\n         * @return {Object}\n         *         Modified message with TypedArray values expanded\n         * @function createTransferableMessage\n         */\n\n        const createTransferableMessage = function (message) {\n            const transferable = {};\n            Object.keys(message).forEach(key => {\n                const value = message[key];\n                if (isArrayBufferView(value)) {\n                    transferable[key] = {\n                        bytes: value.buffer,\n                        byteOffset: value.byteOffset,\n                        byteLength: value.byteLength\n                    };\n                } else {\n                    transferable[key] = value;\n                }\n            });\n            return transferable;\n        };\n        /* global self */\n\n        /**\n         * Our web worker interface so that things can talk to aes-decrypter\n         * that will be running in a web worker. the scope is passed to this by\n         * webworkify.\n         */\n\n        self.onmessage = function (event) {\n            const data = event.data;\n            const encrypted = new Uint8Array(data.encrypted.bytes, data.encrypted.byteOffset, data.encrypted.byteLength);\n            const key = new Uint32Array(data.key.bytes, data.key.byteOffset, data.key.byteLength / 4);\n            const iv = new Uint32Array(data.iv.bytes, data.iv.byteOffset, data.iv.byteLength / 4);\n            /* eslint-disable no-new, handle-callback-err */\n\n            new Decrypter(encrypted, key, iv, function (err, bytes) {\n                self.postMessage(createTransferableMessage({\n                    source: data.source,\n                    decrypted: bytes\n                }), [bytes.buffer]);\n            });\n            /* eslint-enable */\n        };\n    }));\n\n    var Decrypter = factory(workerCode);\n    /* rollup-plugin-worker-factory end for worker!/Users/ddashkevich/projects/http-streaming/src/decrypter-worker.js */\n\n    /**\n     * Convert the properties of an HLS track into an audioTrackKind.\n     *\n     * @private\n     */\n\n    const audioTrackKind_ = properties => {\n        let kind = properties.default ? 'main' : 'alternative';\n        if (properties.characteristics && properties.characteristics.indexOf('public.accessibility.describes-video') >= 0) {\n            kind = 'main-desc';\n        }\n        return kind;\n    };\n    /**\n     * Pause provided segment loader and playlist loader if active\n     *\n     * @param {SegmentLoader} segmentLoader\n     *        SegmentLoader to pause\n     * @param {Object} mediaType\n     *        Active media type\n     * @function stopLoaders\n     */\n\n    const stopLoaders = (segmentLoader, mediaType) => {\n        segmentLoader.abort();\n        segmentLoader.pause();\n        if (mediaType && mediaType.activePlaylistLoader) {\n            mediaType.activePlaylistLoader.pause();\n            mediaType.activePlaylistLoader = null;\n        }\n    };\n    /**\n     * Start loading provided segment loader and playlist loader\n     *\n     * @param {PlaylistLoader} playlistLoader\n     *        PlaylistLoader to start loading\n     * @param {Object} mediaType\n     *        Active media type\n     * @function startLoaders\n     */\n\n    const startLoaders = (playlistLoader, mediaType) => {\n        // Segment loader will be started after `loadedmetadata` or `loadedplaylist` from the\n        // playlist loader\n        mediaType.activePlaylistLoader = playlistLoader;\n        playlistLoader.load();\n    };\n    /**\n     * Returns a function to be called when the media group changes. It performs a\n     * non-destructive (preserve the buffer) resync of the SegmentLoader. This is because a\n     * change of group is merely a rendition switch of the same content at another encoding,\n     * rather than a change of content, such as switching audio from English to Spanish.\n     *\n     * @param {string} type\n     *        MediaGroup type\n     * @param {Object} settings\n     *        Object containing required information for media groups\n     * @return {Function}\n     *         Handler for a non-destructive resync of SegmentLoader when the active media\n     *         group changes.\n     * @function onGroupChanged\n     */\n\n    const onGroupChanged = (type, settings) => () => {\n        const {\n            segmentLoaders: {\n                [type]: segmentLoader,\n                main: mainSegmentLoader\n            },\n            mediaTypes: {\n                [type]: mediaType\n            }\n        } = settings;\n        const activeTrack = mediaType.activeTrack();\n        const activeGroup = mediaType.getActiveGroup();\n        const previousActiveLoader = mediaType.activePlaylistLoader;\n        const lastGroup = mediaType.lastGroup_; // the group did not change do nothing\n\n        if (activeGroup && lastGroup && activeGroup.id === lastGroup.id) {\n            return;\n        }\n        mediaType.lastGroup_ = activeGroup;\n        mediaType.lastTrack_ = activeTrack;\n        stopLoaders(segmentLoader, mediaType);\n        if (!activeGroup || activeGroup.isMainPlaylist) {\n            // there is no group active or active group is a main playlist and won't change\n            return;\n        }\n        if (!activeGroup.playlistLoader) {\n            if (previousActiveLoader) {\n                // The previous group had a playlist loader but the new active group does not\n                // this means we are switching from demuxed to muxed audio. In this case we want to\n                // do a destructive reset of the main segment loader and not restart the audio\n                // loaders.\n                mainSegmentLoader.resetEverything();\n            }\n            return;\n        } // Non-destructive resync\n\n        segmentLoader.resyncLoader();\n        startLoaders(activeGroup.playlistLoader, mediaType);\n    };\n    const onGroupChanging = (type, settings) => () => {\n        const {\n            segmentLoaders: {\n                [type]: segmentLoader\n            },\n            mediaTypes: {\n                [type]: mediaType\n            }\n        } = settings;\n        mediaType.lastGroup_ = null;\n        segmentLoader.abort();\n        segmentLoader.pause();\n    };\n    /**\n     * Returns a function to be called when the media track changes. It performs a\n     * destructive reset of the SegmentLoader to ensure we start loading as close to\n     * currentTime as possible.\n     *\n     * @param {string} type\n     *        MediaGroup type\n     * @param {Object} settings\n     *        Object containing required information for media groups\n     * @return {Function}\n     *         Handler for a destructive reset of SegmentLoader when the active media\n     *         track changes.\n     * @function onTrackChanged\n     */\n\n    const onTrackChanged = (type, settings) => () => {\n        const {\n            mainPlaylistLoader,\n            segmentLoaders: {\n                [type]: segmentLoader,\n                main: mainSegmentLoader\n            },\n            mediaTypes: {\n                [type]: mediaType\n            }\n        } = settings;\n        const activeTrack = mediaType.activeTrack();\n        const activeGroup = mediaType.getActiveGroup();\n        const previousActiveLoader = mediaType.activePlaylistLoader;\n        const lastTrack = mediaType.lastTrack_; // track did not change, do nothing\n\n        if (lastTrack && activeTrack && lastTrack.id === activeTrack.id) {\n            return;\n        }\n        mediaType.lastGroup_ = activeGroup;\n        mediaType.lastTrack_ = activeTrack;\n        stopLoaders(segmentLoader, mediaType);\n        if (!activeGroup) {\n            // there is no group active so we do not want to restart loaders\n            return;\n        }\n        if (activeGroup.isMainPlaylist) {\n            // track did not change, do nothing\n            if (!activeTrack || !lastTrack || activeTrack.id === lastTrack.id) {\n                return;\n            }\n            const pc = settings.vhs.playlistController_;\n            const newPlaylist = pc.selectPlaylist(); // media will not change do nothing\n\n            if (pc.media() === newPlaylist) {\n                return;\n            }\n            mediaType.logger_(`track change. Switching main audio from ${lastTrack.id} to ${activeTrack.id}`);\n            mainPlaylistLoader.pause();\n            mainSegmentLoader.resetEverything();\n            pc.fastQualityChange_(newPlaylist);\n            return;\n        }\n        if (type === 'AUDIO') {\n            if (!activeGroup.playlistLoader) {\n                // when switching from demuxed audio/video to muxed audio/video (noted by no\n                // playlist loader for the audio group), we want to do a destructive reset of the\n                // main segment loader and not restart the audio loaders\n                mainSegmentLoader.setAudio(true); // don't have to worry about disabling the audio of the audio segment loader since\n                // it should be stopped\n\n                mainSegmentLoader.resetEverything();\n                return;\n            } // although the segment loader is an audio segment loader, call the setAudio\n            // function to ensure it is prepared to re-append the init segment (or handle other\n            // config changes)\n\n            segmentLoader.setAudio(true);\n            mainSegmentLoader.setAudio(false);\n        }\n        if (previousActiveLoader === activeGroup.playlistLoader) {\n            // Nothing has actually changed. This can happen because track change events can fire\n            // multiple times for a \"single\" change. One for enabling the new active track, and\n            // one for disabling the track that was active\n            startLoaders(activeGroup.playlistLoader, mediaType);\n            return;\n        }\n        if (segmentLoader.track) {\n            // For WebVTT, set the new text track in the segmentloader\n            segmentLoader.track(activeTrack);\n        } // destructive reset\n\n        segmentLoader.resetEverything();\n        startLoaders(activeGroup.playlistLoader, mediaType);\n    };\n    const onError = {\n        /**\n         * Returns a function to be called when a SegmentLoader or PlaylistLoader encounters\n         * an error.\n         *\n         * @param {string} type\n         *        MediaGroup type\n         * @param {Object} settings\n         *        Object containing required information for media groups\n         * @return {Function}\n         *         Error handler. Logs warning (or error if the playlist is excluded) to\n         *         console and switches back to default audio track.\n         * @function onError.AUDIO\n         */\n        AUDIO: (type, settings) => () => {\n            const {\n                segmentLoaders: {\n                    [type]: segmentLoader\n                },\n                mediaTypes: {\n                    [type]: mediaType\n                },\n                excludePlaylist\n            } = settings;\n            stopLoaders(segmentLoader, mediaType); // switch back to default audio track\n\n            const activeTrack = mediaType.activeTrack();\n            const activeGroup = mediaType.activeGroup();\n            const id = (activeGroup.filter(group => group.default)[0] || activeGroup[0]).id;\n            const defaultTrack = mediaType.tracks[id];\n            if (activeTrack === defaultTrack) {\n                // Default track encountered an error. All we can do now is exclude the current\n                // rendition and hope another will switch audio groups\n                excludePlaylist({\n                    error: {\n                        message: 'Problem encountered loading the default audio track.'\n                    }\n                });\n                return;\n            }\n            videojs.log.warn('Problem encountered loading the alternate audio track.' + 'Switching back to default.');\n            for (const trackId in mediaType.tracks) {\n                mediaType.tracks[trackId].enabled = mediaType.tracks[trackId] === defaultTrack;\n            }\n            mediaType.onTrackChanged();\n        },\n        /**\n         * Returns a function to be called when a SegmentLoader or PlaylistLoader encounters\n         * an error.\n         *\n         * @param {string} type\n         *        MediaGroup type\n         * @param {Object} settings\n         *        Object containing required information for media groups\n         * @return {Function}\n         *         Error handler. Logs warning to console and disables the active subtitle track\n         * @function onError.SUBTITLES\n         */\n        SUBTITLES: (type, settings) => () => {\n            const {\n                segmentLoaders: {\n                    [type]: segmentLoader\n                },\n                mediaTypes: {\n                    [type]: mediaType\n                }\n            } = settings;\n            videojs.log.warn('Problem encountered loading the subtitle track.' + 'Disabling subtitle track.');\n            stopLoaders(segmentLoader, mediaType);\n            const track = mediaType.activeTrack();\n            if (track) {\n                track.mode = 'disabled';\n            }\n            mediaType.onTrackChanged();\n        }\n    };\n    const setupListeners = {\n        /**\n         * Setup event listeners for audio playlist loader\n         *\n         * @param {string} type\n         *        MediaGroup type\n         * @param {PlaylistLoader|null} playlistLoader\n         *        PlaylistLoader to register listeners on\n         * @param {Object} settings\n         *        Object containing required information for media groups\n         * @function setupListeners.AUDIO\n         */\n        AUDIO: (type, playlistLoader, settings) => {\n            if (!playlistLoader) {\n                // no playlist loader means audio will be muxed with the video\n                return;\n            }\n            const {\n                tech,\n                requestOptions,\n                segmentLoaders: {\n                    [type]: segmentLoader\n                }\n            } = settings;\n            playlistLoader.on('loadedmetadata', () => {\n                const media = playlistLoader.media();\n                segmentLoader.playlist(media, requestOptions); // if the video is already playing, or if this isn't a live video and preload\n                // permits, start downloading segments\n\n                if (!tech.paused() || media.endList && tech.preload() !== 'none') {\n                    segmentLoader.load();\n                }\n            });\n            playlistLoader.on('loadedplaylist', () => {\n                segmentLoader.playlist(playlistLoader.media(), requestOptions); // If the player isn't paused, ensure that the segment loader is running\n\n                if (!tech.paused()) {\n                    segmentLoader.load();\n                }\n            });\n            playlistLoader.on('error', onError[type](type, settings));\n        },\n        /**\n         * Setup event listeners for subtitle playlist loader\n         *\n         * @param {string} type\n         *        MediaGroup type\n         * @param {PlaylistLoader|null} playlistLoader\n         *        PlaylistLoader to register listeners on\n         * @param {Object} settings\n         *        Object containing required information for media groups\n         * @function setupListeners.SUBTITLES\n         */\n        SUBTITLES: (type, playlistLoader, settings) => {\n            const {\n                tech,\n                requestOptions,\n                segmentLoaders: {\n                    [type]: segmentLoader\n                },\n                mediaTypes: {\n                    [type]: mediaType\n                }\n            } = settings;\n            playlistLoader.on('loadedmetadata', () => {\n                const media = playlistLoader.media();\n                segmentLoader.playlist(media, requestOptions);\n                segmentLoader.track(mediaType.activeTrack()); // if the video is already playing, or if this isn't a live video and preload\n                // permits, start downloading segments\n\n                if (!tech.paused() || media.endList && tech.preload() !== 'none') {\n                    segmentLoader.load();\n                }\n            });\n            playlistLoader.on('loadedplaylist', () => {\n                segmentLoader.playlist(playlistLoader.media(), requestOptions); // If the player isn't paused, ensure that the segment loader is running\n\n                if (!tech.paused()) {\n                    segmentLoader.load();\n                }\n            });\n            playlistLoader.on('error', onError[type](type, settings));\n        }\n    };\n    const initialize = {\n        /**\n         * Setup PlaylistLoaders and AudioTracks for the audio groups\n         *\n         * @param {string} type\n         *        MediaGroup type\n         * @param {Object} settings\n         *        Object containing required information for media groups\n         * @function initialize.AUDIO\n         */\n        'AUDIO': (type, settings) => {\n            const {\n                vhs,\n                sourceType,\n                segmentLoaders: {\n                    [type]: segmentLoader\n                },\n                requestOptions,\n                main: {\n                    mediaGroups\n                },\n                mediaTypes: {\n                    [type]: {\n                        groups,\n                        tracks,\n                        logger_\n                    }\n                },\n                mainPlaylistLoader\n            } = settings;\n            const audioOnlyMain = isAudioOnly(mainPlaylistLoader.main); // force a default if we have none\n\n            if (!mediaGroups[type] || Object.keys(mediaGroups[type]).length === 0) {\n                mediaGroups[type] = {\n                    main: {\n                        default: {\n                            default: true\n                        }\n                    }\n                };\n                if (audioOnlyMain) {\n                    mediaGroups[type].main.default.playlists = mainPlaylistLoader.main.playlists;\n                }\n            }\n            for (const groupId in mediaGroups[type]) {\n                if (!groups[groupId]) {\n                    groups[groupId] = [];\n                }\n                for (const variantLabel in mediaGroups[type][groupId]) {\n                    let properties = mediaGroups[type][groupId][variantLabel];\n                    let playlistLoader;\n                    if (audioOnlyMain) {\n                        logger_(`AUDIO group '${groupId}' label '${variantLabel}' is a main playlist`);\n                        properties.isMainPlaylist = true;\n                        playlistLoader = null; // if vhs-json was provided as the source, and the media playlist was resolved,\n                        // use the resolved media playlist object\n                    } else if (sourceType === 'vhs-json' && properties.playlists) {\n                        playlistLoader = new PlaylistLoader(properties.playlists[0], vhs, requestOptions);\n                    } else if (properties.resolvedUri) {\n                        playlistLoader = new PlaylistLoader(properties.resolvedUri, vhs, requestOptions); // TODO: dash isn't the only type with properties.playlists\n                        // should we even have properties.playlists in this check.\n                    } else if (properties.playlists && sourceType === 'dash') {\n                        playlistLoader = new DashPlaylistLoader(properties.playlists[0], vhs, requestOptions, mainPlaylistLoader);\n                    } else {\n                        // no resolvedUri means the audio is muxed with the video when using this\n                        // audio track\n                        playlistLoader = null;\n                    }\n                    properties = merge({\n                        id: variantLabel,\n                        playlistLoader\n                    }, properties);\n                    setupListeners[type](type, properties.playlistLoader, settings);\n                    groups[groupId].push(properties);\n                    if (typeof tracks[variantLabel] === 'undefined') {\n                        const track = new videojs.AudioTrack({\n                            id: variantLabel,\n                            kind: audioTrackKind_(properties),\n                            enabled: false,\n                            language: properties.language,\n                            default: properties.default,\n                            label: variantLabel\n                        });\n                        tracks[variantLabel] = track;\n                    }\n                }\n            } // setup single error event handler for the segment loader\n\n            segmentLoader.on('error', onError[type](type, settings));\n        },\n        /**\n         * Setup PlaylistLoaders and TextTracks for the subtitle groups\n         *\n         * @param {string} type\n         *        MediaGroup type\n         * @param {Object} settings\n         *        Object containing required information for media groups\n         * @function initialize.SUBTITLES\n         */\n        'SUBTITLES': (type, settings) => {\n            const {\n                tech,\n                vhs,\n                sourceType,\n                segmentLoaders: {\n                    [type]: segmentLoader\n                },\n                requestOptions,\n                main: {\n                    mediaGroups\n                },\n                mediaTypes: {\n                    [type]: {\n                        groups,\n                        tracks\n                    }\n                },\n                mainPlaylistLoader\n            } = settings;\n            for (const groupId in mediaGroups[type]) {\n                if (!groups[groupId]) {\n                    groups[groupId] = [];\n                }\n                for (const variantLabel in mediaGroups[type][groupId]) {\n                    if (mediaGroups[type][groupId][variantLabel].forced) {\n                        // Subtitle playlists with the forced attribute are not selectable in Safari.\n                        // According to Apple's HLS Authoring Specification:\n                        //   If content has forced subtitles and regular subtitles in a given language,\n                        //   the regular subtitles track in that language MUST contain both the forced\n                        //   subtitles and the regular subtitles for that language.\n                        // Because of this requirement and that Safari does not add forced subtitles,\n                        // forced subtitles are skipped here to maintain consistent experience across\n                        // all platforms\n                        continue;\n                    }\n                    let properties = mediaGroups[type][groupId][variantLabel];\n                    let playlistLoader;\n                    if (sourceType === 'hls') {\n                        playlistLoader = new PlaylistLoader(properties.resolvedUri, vhs, requestOptions);\n                    } else if (sourceType === 'dash') {\n                        const playlists = properties.playlists.filter(p => p.excludeUntil !== Infinity);\n                        if (!playlists.length) {\n                            return;\n                        }\n                        playlistLoader = new DashPlaylistLoader(properties.playlists[0], vhs, requestOptions, mainPlaylistLoader);\n                    } else if (sourceType === 'vhs-json') {\n                        playlistLoader = new PlaylistLoader(\n                            // if the vhs-json object included the media playlist, use the media playlist\n                            // as provided, otherwise use the resolved URI to load the playlist\n                            properties.playlists ? properties.playlists[0] : properties.resolvedUri, vhs, requestOptions);\n                    }\n                    properties = merge({\n                        id: variantLabel,\n                        playlistLoader\n                    }, properties);\n                    setupListeners[type](type, properties.playlistLoader, settings);\n                    groups[groupId].push(properties);\n                    if (typeof tracks[variantLabel] === 'undefined') {\n                        const track = tech.addRemoteTextTrack({\n                            id: variantLabel,\n                            kind: 'subtitles',\n                            default: properties.default && properties.autoselect,\n                            language: properties.language,\n                            label: variantLabel\n                        }, false).track;\n                        tracks[variantLabel] = track;\n                    }\n                }\n            } // setup single error event handler for the segment loader\n\n            segmentLoader.on('error', onError[type](type, settings));\n        },\n        /**\n         * Setup TextTracks for the closed-caption groups\n         *\n         * @param {String} type\n         *        MediaGroup type\n         * @param {Object} settings\n         *        Object containing required information for media groups\n         * @function initialize['CLOSED-CAPTIONS']\n         */\n        'CLOSED-CAPTIONS': (type, settings) => {\n            const {\n                tech,\n                main: {\n                    mediaGroups\n                },\n                mediaTypes: {\n                    [type]: {\n                        groups,\n                        tracks\n                    }\n                }\n            } = settings;\n            for (const groupId in mediaGroups[type]) {\n                if (!groups[groupId]) {\n                    groups[groupId] = [];\n                }\n                for (const variantLabel in mediaGroups[type][groupId]) {\n                    const properties = mediaGroups[type][groupId][variantLabel]; // Look for either 608 (CCn) or 708 (SERVICEn) caption services\n\n                    if (!/^(?:CC|SERVICE)/.test(properties.instreamId)) {\n                        continue;\n                    }\n                    const captionServices = tech.options_.vhs && tech.options_.vhs.captionServices || {};\n                    let newProps = {\n                        label: variantLabel,\n                        language: properties.language,\n                        instreamId: properties.instreamId,\n                        default: properties.default && properties.autoselect\n                    };\n                    if (captionServices[newProps.instreamId]) {\n                        newProps = merge(newProps, captionServices[newProps.instreamId]);\n                    }\n                    if (newProps.default === undefined) {\n                        delete newProps.default;\n                    } // No PlaylistLoader is required for Closed-Captions because the captions are\n                    // embedded within the video stream\n\n                    groups[groupId].push(merge({\n                        id: variantLabel\n                    }, properties));\n                    if (typeof tracks[variantLabel] === 'undefined') {\n                        const track = tech.addRemoteTextTrack({\n                            id: newProps.instreamId,\n                            kind: 'captions',\n                            default: newProps.default,\n                            language: newProps.language,\n                            label: newProps.label\n                        }, false).track;\n                        tracks[variantLabel] = track;\n                    }\n                }\n            }\n        }\n    };\n    const groupMatch = (list, media) => {\n        for (let i = 0; i < list.length; i++) {\n            if (playlistMatch(media, list[i])) {\n                return true;\n            }\n            if (list[i].playlists && groupMatch(list[i].playlists, media)) {\n                return true;\n            }\n        }\n        return false;\n    };\n    /**\n     * Returns a function used to get the active group of the provided type\n     *\n     * @param {string} type\n     *        MediaGroup type\n     * @param {Object} settings\n     *        Object containing required information for media groups\n     * @return {Function}\n     *         Function that returns the active media group for the provided type. Takes an\n     *         optional parameter {TextTrack} track. If no track is provided, a list of all\n     *         variants in the group, otherwise the variant corresponding to the provided\n     *         track is returned.\n     * @function activeGroup\n     */\n\n    const activeGroup = (type, settings) => track => {\n        const {\n            mainPlaylistLoader,\n            mediaTypes: {\n                [type]: {\n                    groups\n                }\n            }\n        } = settings;\n        const media = mainPlaylistLoader.media();\n        if (!media) {\n            return null;\n        }\n        let variants = null; // set to variants to main media active group\n\n        if (media.attributes[type]) {\n            variants = groups[media.attributes[type]];\n        }\n        const groupKeys = Object.keys(groups);\n        if (!variants) {\n            // find the mainPlaylistLoader media\n            // that is in a media group if we are dealing\n            // with audio only\n            if (type === 'AUDIO' && groupKeys.length > 1 && isAudioOnly(settings.main)) {\n                for (let i = 0; i < groupKeys.length; i++) {\n                    const groupPropertyList = groups[groupKeys[i]];\n                    if (groupMatch(groupPropertyList, media)) {\n                        variants = groupPropertyList;\n                        break;\n                    }\n                } // use the main group if it exists\n            } else if (groups.main) {\n                variants = groups.main; // only one group, use that one\n            } else if (groupKeys.length === 1) {\n                variants = groups[groupKeys[0]];\n            }\n        }\n        if (typeof track === 'undefined') {\n            return variants;\n        }\n        if (track === null || !variants) {\n            // An active track was specified so a corresponding group is expected. track === null\n            // means no track is currently active so there is no corresponding group\n            return null;\n        }\n        return variants.filter(props => props.id === track.id)[0] || null;\n    };\n    const activeTrack = {\n        /**\n         * Returns a function used to get the active track of type provided\n         *\n         * @param {string} type\n         *        MediaGroup type\n         * @param {Object} settings\n         *        Object containing required information for media groups\n         * @return {Function}\n         *         Function that returns the active media track for the provided type. Returns\n         *         null if no track is active\n         * @function activeTrack.AUDIO\n         */\n        AUDIO: (type, settings) => () => {\n            const {\n                mediaTypes: {\n                    [type]: {\n                        tracks\n                    }\n                }\n            } = settings;\n            for (const id in tracks) {\n                if (tracks[id].enabled) {\n                    return tracks[id];\n                }\n            }\n            return null;\n        },\n        /**\n         * Returns a function used to get the active track of type provided\n         *\n         * @param {string} type\n         *        MediaGroup type\n         * @param {Object} settings\n         *        Object containing required information for media groups\n         * @return {Function}\n         *         Function that returns the active media track for the provided type. Returns\n         *         null if no track is active\n         * @function activeTrack.SUBTITLES\n         */\n        SUBTITLES: (type, settings) => () => {\n            const {\n                mediaTypes: {\n                    [type]: {\n                        tracks\n                    }\n                }\n            } = settings;\n            for (const id in tracks) {\n                if (tracks[id].mode === 'showing' || tracks[id].mode === 'hidden') {\n                    return tracks[id];\n                }\n            }\n            return null;\n        }\n    };\n    const getActiveGroup = (type, {\n        mediaTypes\n    }) => () => {\n        const activeTrack_ = mediaTypes[type].activeTrack();\n        if (!activeTrack_) {\n            return null;\n        }\n        return mediaTypes[type].activeGroup(activeTrack_);\n    };\n    /**\n     * Setup PlaylistLoaders and Tracks for media groups (Audio, Subtitles,\n     * Closed-Captions) specified in the main manifest.\n     *\n     * @param {Object} settings\n     *        Object containing required information for setting up the media groups\n     * @param {Tech} settings.tech\n     *        The tech of the player\n     * @param {Object} settings.requestOptions\n     *        XHR request options used by the segment loaders\n     * @param {PlaylistLoader} settings.mainPlaylistLoader\n     *        PlaylistLoader for the main source\n     * @param {VhsHandler} settings.vhs\n     *        VHS SourceHandler\n     * @param {Object} settings.main\n     *        The parsed main manifest\n     * @param {Object} settings.mediaTypes\n     *        Object to store the loaders, tracks, and utility methods for each media type\n     * @param {Function} settings.excludePlaylist\n     *        Excludes the current rendition and forces a rendition switch.\n     * @function setupMediaGroups\n     */\n\n    const setupMediaGroups = settings => {\n        ['AUDIO', 'SUBTITLES', 'CLOSED-CAPTIONS'].forEach(type => {\n            initialize[type](type, settings);\n        });\n        const {\n            mediaTypes,\n            mainPlaylistLoader,\n            tech,\n            vhs,\n            segmentLoaders: {\n                ['AUDIO']: audioSegmentLoader,\n                main: mainSegmentLoader\n            }\n        } = settings; // setup active group and track getters and change event handlers\n\n        ['AUDIO', 'SUBTITLES'].forEach(type => {\n            mediaTypes[type].activeGroup = activeGroup(type, settings);\n            mediaTypes[type].activeTrack = activeTrack[type](type, settings);\n            mediaTypes[type].onGroupChanged = onGroupChanged(type, settings);\n            mediaTypes[type].onGroupChanging = onGroupChanging(type, settings);\n            mediaTypes[type].onTrackChanged = onTrackChanged(type, settings);\n            mediaTypes[type].getActiveGroup = getActiveGroup(type, settings);\n        }); // DO NOT enable the default subtitle or caption track.\n        // DO enable the default audio track\n\n        const audioGroup = mediaTypes.AUDIO.activeGroup();\n        if (audioGroup) {\n            const groupId = (audioGroup.filter(group => group.default)[0] || audioGroup[0]).id;\n            mediaTypes.AUDIO.tracks[groupId].enabled = true;\n            mediaTypes.AUDIO.onGroupChanged();\n            mediaTypes.AUDIO.onTrackChanged();\n            const activeAudioGroup = mediaTypes.AUDIO.getActiveGroup(); // a similar check for handling setAudio on each loader is run again each time the\n            // track is changed, but needs to be handled here since the track may not be considered\n            // changed on the first call to onTrackChanged\n\n            if (!activeAudioGroup.playlistLoader) {\n                // either audio is muxed with video or the stream is audio only\n                mainSegmentLoader.setAudio(true);\n            } else {\n                // audio is demuxed\n                mainSegmentLoader.setAudio(false);\n                audioSegmentLoader.setAudio(true);\n            }\n        }\n        mainPlaylistLoader.on('mediachange', () => {\n            ['AUDIO', 'SUBTITLES'].forEach(type => mediaTypes[type].onGroupChanged());\n        });\n        mainPlaylistLoader.on('mediachanging', () => {\n            ['AUDIO', 'SUBTITLES'].forEach(type => mediaTypes[type].onGroupChanging());\n        }); // custom audio track change event handler for usage event\n\n        const onAudioTrackChanged = () => {\n            mediaTypes.AUDIO.onTrackChanged();\n            tech.trigger({\n                type: 'usage',\n                name: 'vhs-audio-change'\n            });\n        };\n        tech.audioTracks().addEventListener('change', onAudioTrackChanged);\n        tech.remoteTextTracks().addEventListener('change', mediaTypes.SUBTITLES.onTrackChanged);\n        vhs.on('dispose', () => {\n            tech.audioTracks().removeEventListener('change', onAudioTrackChanged);\n            tech.remoteTextTracks().removeEventListener('change', mediaTypes.SUBTITLES.onTrackChanged);\n        }); // clear existing audio tracks and add the ones we just created\n\n        tech.clearTracks('audio');\n        for (const id in mediaTypes.AUDIO.tracks) {\n            tech.audioTracks().addTrack(mediaTypes.AUDIO.tracks[id]);\n        }\n    };\n    /**\n     * Creates skeleton object used to store the loaders, tracks, and utility methods for each\n     * media type\n     *\n     * @return {Object}\n     *         Object to store the loaders, tracks, and utility methods for each media type\n     * @function createMediaTypes\n     */\n\n    const createMediaTypes = () => {\n        const mediaTypes = {};\n        ['AUDIO', 'SUBTITLES', 'CLOSED-CAPTIONS'].forEach(type => {\n            mediaTypes[type] = {\n                groups: {},\n                tracks: {},\n                activePlaylistLoader: null,\n                activeGroup: noop,\n                activeTrack: noop,\n                getActiveGroup: noop,\n                onGroupChanged: noop,\n                onTrackChanged: noop,\n                lastTrack_: null,\n                logger_: logger(`MediaGroups[${type}]`)\n            };\n        });\n        return mediaTypes;\n    };\n\n    /**\n     * @file playlist-controller.js\n     */\n    const ABORT_EARLY_EXCLUSION_SECONDS = 60 * 2;\n    let Vhs$1; // SegmentLoader stats that need to have each loader's\n    // values summed to calculate the final value\n\n    const loaderStats = ['mediaRequests', 'mediaRequestsAborted', 'mediaRequestsTimedout', 'mediaRequestsErrored', 'mediaTransferDuration', 'mediaBytesTransferred', 'mediaAppends'];\n    const sumLoaderStat = function (stat) {\n        return this.audioSegmentLoader_[stat] + this.mainSegmentLoader_[stat];\n    };\n    const shouldSwitchToMedia = function ({\n                                              currentPlaylist,\n                                              buffered,\n                                              currentTime,\n                                              nextPlaylist,\n                                              bufferLowWaterLine,\n                                              bufferHighWaterLine,\n                                              duration,\n                                              bufferBasedABR,\n                                              log\n                                          }) {\n        // we have no other playlist to switch to\n        if (!nextPlaylist) {\n            videojs.log.warn('We received no playlist to switch to. Please check your stream.');\n            return false;\n        }\n        const sharedLogLine = `allowing switch ${currentPlaylist && currentPlaylist.id || 'null'} -> ${nextPlaylist.id}`;\n        if (!currentPlaylist) {\n            log(`${sharedLogLine} as current playlist is not set`);\n            return true;\n        } // no need to switch if playlist is the same\n\n        if (nextPlaylist.id === currentPlaylist.id) {\n            return false;\n        } // determine if current time is in a buffered range.\n\n        const isBuffered = Boolean(findRange(buffered, currentTime).length); // If the playlist is live, then we want to not take low water line into account.\n        // This is because in LIVE, the player plays 3 segments from the end of the\n        // playlist, and if `BUFFER_LOW_WATER_LINE` is greater than the duration availble\n        // in those segments, a viewer will never experience a rendition upswitch.\n\n        if (!currentPlaylist.endList) {\n            // For LLHLS live streams, don't switch renditions before playback has started, as it almost\n            // doubles the time to first playback.\n            if (!isBuffered && typeof currentPlaylist.partTargetDuration === 'number') {\n                log(`not ${sharedLogLine} as current playlist is live llhls, but currentTime isn't in buffered.`);\n                return false;\n            }\n            log(`${sharedLogLine} as current playlist is live`);\n            return true;\n        }\n        const forwardBuffer = timeAheadOf(buffered, currentTime);\n        const maxBufferLowWaterLine = bufferBasedABR ? Config.EXPERIMENTAL_MAX_BUFFER_LOW_WATER_LINE : Config.MAX_BUFFER_LOW_WATER_LINE; // For the same reason as LIVE, we ignore the low water line when the VOD\n        // duration is below the max potential low water line\n\n        if (duration < maxBufferLowWaterLine) {\n            log(`${sharedLogLine} as duration < max low water line (${duration} < ${maxBufferLowWaterLine})`);\n            return true;\n        }\n        const nextBandwidth = nextPlaylist.attributes.BANDWIDTH;\n        const currBandwidth = currentPlaylist.attributes.BANDWIDTH; // when switching down, if our buffer is lower than the high water line,\n        // we can switch down\n\n        if (nextBandwidth < currBandwidth && (!bufferBasedABR || forwardBuffer < bufferHighWaterLine)) {\n            let logLine = `${sharedLogLine} as next bandwidth < current bandwidth (${nextBandwidth} < ${currBandwidth})`;\n            if (bufferBasedABR) {\n                logLine += ` and forwardBuffer < bufferHighWaterLine (${forwardBuffer} < ${bufferHighWaterLine})`;\n            }\n            log(logLine);\n            return true;\n        } // and if our buffer is higher than the low water line,\n        // we can switch up\n\n        if ((!bufferBasedABR || nextBandwidth > currBandwidth) && forwardBuffer >= bufferLowWaterLine) {\n            let logLine = `${sharedLogLine} as forwardBuffer >= bufferLowWaterLine (${forwardBuffer} >= ${bufferLowWaterLine})`;\n            if (bufferBasedABR) {\n                logLine += ` and next bandwidth > current bandwidth (${nextBandwidth} > ${currBandwidth})`;\n            }\n            log(logLine);\n            return true;\n        }\n        log(`not ${sharedLogLine} as no switching criteria met`);\n        return false;\n    };\n    /**\n     * the main playlist controller controller all interactons\n     * between playlists and segmentloaders. At this time this mainly\n     * involves a main playlist and a series of audio playlists\n     * if they are available\n     *\n     * @class PlaylistController\n     * @extends videojs.EventTarget\n     */\n\n    class PlaylistController extends videojs.EventTarget {\n        constructor(options) {\n            super();\n            const {\n                src,\n                withCredentials,\n                tech,\n                bandwidth,\n                externVhs,\n                useCueTags,\n                playlistExclusionDuration,\n                enableLowInitialPlaylist,\n                sourceType,\n                cacheEncryptionKeys,\n                bufferBasedABR,\n                leastPixelDiffSelector,\n                captionServices\n            } = options;\n            if (!src) {\n                throw new Error('A non-empty playlist URL or JSON manifest string is required');\n            }\n            let {\n                maxPlaylistRetries\n            } = options;\n            if (maxPlaylistRetries === null || typeof maxPlaylistRetries === 'undefined') {\n                maxPlaylistRetries = Infinity;\n            }\n            Vhs$1 = externVhs;\n            this.bufferBasedABR = Boolean(bufferBasedABR);\n            this.leastPixelDiffSelector = Boolean(leastPixelDiffSelector);\n            this.withCredentials = withCredentials;\n            this.tech_ = tech;\n            this.vhs_ = tech.vhs;\n            this.sourceType_ = sourceType;\n            this.useCueTags_ = useCueTags;\n            this.playlistExclusionDuration = playlistExclusionDuration;\n            this.maxPlaylistRetries = maxPlaylistRetries;\n            this.enableLowInitialPlaylist = enableLowInitialPlaylist;\n            if (this.useCueTags_) {\n                this.cueTagsTrack_ = this.tech_.addTextTrack('metadata', 'ad-cues');\n                this.cueTagsTrack_.inBandMetadataTrackDispatchType = '';\n            }\n            this.requestOptions_ = {\n                withCredentials,\n                maxPlaylistRetries,\n                timeout: null\n            };\n            this.on('error', this.pauseLoading);\n            this.mediaTypes_ = createMediaTypes();\n            this.mediaSource = new window.MediaSource();\n            this.handleDurationChange_ = this.handleDurationChange_.bind(this);\n            this.handleSourceOpen_ = this.handleSourceOpen_.bind(this);\n            this.handleSourceEnded_ = this.handleSourceEnded_.bind(this);\n            this.mediaSource.addEventListener('durationchange', this.handleDurationChange_); // load the media source into the player\n\n            this.mediaSource.addEventListener('sourceopen', this.handleSourceOpen_);\n            this.mediaSource.addEventListener('sourceended', this.handleSourceEnded_); // we don't have to handle sourceclose since dispose will handle termination of\n            // everything, and the MediaSource should not be detached without a proper disposal\n\n            this.seekable_ = createTimeRanges();\n            this.hasPlayed_ = false;\n            this.syncController_ = new SyncController(options);\n            this.segmentMetadataTrack_ = tech.addRemoteTextTrack({\n                kind: 'metadata',\n                label: 'segment-metadata'\n            }, false).track;\n            this.decrypter_ = new Decrypter();\n            this.sourceUpdater_ = new SourceUpdater(this.mediaSource);\n            this.inbandTextTracks_ = {};\n            this.timelineChangeController_ = new TimelineChangeController();\n            const segmentLoaderSettings = {\n                vhs: this.vhs_,\n                parse708captions: options.parse708captions,\n                useDtsForTimestampOffset: options.useDtsForTimestampOffset,\n                captionServices,\n                mediaSource: this.mediaSource,\n                currentTime: this.tech_.currentTime.bind(this.tech_),\n                seekable: () => this.seekable(),\n                seeking: () => this.tech_.seeking(),\n                duration: () => this.duration(),\n                hasPlayed: () => this.hasPlayed_,\n                goalBufferLength: () => this.goalBufferLength(),\n                bandwidth,\n                syncController: this.syncController_,\n                decrypter: this.decrypter_,\n                sourceType: this.sourceType_,\n                inbandTextTracks: this.inbandTextTracks_,\n                cacheEncryptionKeys,\n                sourceUpdater: this.sourceUpdater_,\n                timelineChangeController: this.timelineChangeController_,\n                exactManifestTimings: options.exactManifestTimings\n            }; // The source type check not only determines whether a special DASH playlist loader\n            // should be used, but also covers the case where the provided src is a vhs-json\n            // manifest object (instead of a URL). In the case of vhs-json, the default\n            // PlaylistLoader should be used.\n\n            this.mainPlaylistLoader_ = this.sourceType_ === 'dash' ? new DashPlaylistLoader(src, this.vhs_, this.requestOptions_) : new PlaylistLoader(src, this.vhs_, this.requestOptions_);\n            this.setupMainPlaylistLoaderListeners_(); // setup segment loaders\n            // combined audio/video or just video when alternate audio track is selected\n\n            this.mainSegmentLoader_ = new SegmentLoader(merge(segmentLoaderSettings, {\n                segmentMetadataTrack: this.segmentMetadataTrack_,\n                loaderType: 'main'\n            }), options); // alternate audio track\n\n            this.audioSegmentLoader_ = new SegmentLoader(merge(segmentLoaderSettings, {\n                loaderType: 'audio'\n            }), options);\n            this.subtitleSegmentLoader_ = new VTTSegmentLoader(merge(segmentLoaderSettings, {\n                loaderType: 'vtt',\n                featuresNativeTextTracks: this.tech_.featuresNativeTextTracks,\n                loadVttJs: () => new Promise((resolve, reject) => {\n                    function onLoad() {\n                        tech.off('vttjserror', onError);\n                        resolve();\n                    }\n                    function onError() {\n                        tech.off('vttjsloaded', onLoad);\n                        reject();\n                    }\n                    tech.one('vttjsloaded', onLoad);\n                    tech.one('vttjserror', onError); // safe to call multiple times, script will be loaded only once:\n\n                    tech.addWebVttScript_();\n                })\n            }), options);\n            this.setupSegmentLoaderListeners_();\n            if (this.bufferBasedABR) {\n                this.mainPlaylistLoader_.one('loadedplaylist', () => this.startABRTimer_());\n                this.tech_.on('pause', () => this.stopABRTimer_());\n                this.tech_.on('play', () => this.startABRTimer_());\n            } // Create SegmentLoader stat-getters\n            // mediaRequests_\n            // mediaRequestsAborted_\n            // mediaRequestsTimedout_\n            // mediaRequestsErrored_\n            // mediaTransferDuration_\n            // mediaBytesTransferred_\n            // mediaAppends_\n\n            loaderStats.forEach(stat => {\n                this[stat + '_'] = sumLoaderStat.bind(this, stat);\n            });\n            this.logger_ = logger('pc');\n            this.triggeredFmp4Usage = false;\n            if (this.tech_.preload() === 'none') {\n                this.loadOnPlay_ = () => {\n                    this.loadOnPlay_ = null;\n                    this.mainPlaylistLoader_.load();\n                };\n                this.tech_.one('play', this.loadOnPlay_);\n            } else {\n                this.mainPlaylistLoader_.load();\n            }\n            this.timeToLoadedData__ = -1;\n            this.mainAppendsToLoadedData__ = -1;\n            this.audioAppendsToLoadedData__ = -1;\n            const event = this.tech_.preload() === 'none' ? 'play' : 'loadstart'; // start the first frame timer on loadstart or play (for preload none)\n\n            this.tech_.one(event, () => {\n                const timeToLoadedDataStart = Date.now();\n                this.tech_.one('loadeddata', () => {\n                    this.timeToLoadedData__ = Date.now() - timeToLoadedDataStart;\n                    this.mainAppendsToLoadedData__ = this.mainSegmentLoader_.mediaAppends;\n                    this.audioAppendsToLoadedData__ = this.audioSegmentLoader_.mediaAppends;\n                });\n            });\n        }\n        mainAppendsToLoadedData_() {\n            return this.mainAppendsToLoadedData__;\n        }\n        audioAppendsToLoadedData_() {\n            return this.audioAppendsToLoadedData__;\n        }\n        appendsToLoadedData_() {\n            const main = this.mainAppendsToLoadedData_();\n            const audio = this.audioAppendsToLoadedData_();\n            if (main === -1 || audio === -1) {\n                return -1;\n            }\n            return main + audio;\n        }\n        timeToLoadedData_() {\n            return this.timeToLoadedData__;\n        }\n        /**\n         * Run selectPlaylist and switch to the new playlist if we should\n         *\n         * @param {string} [reason=abr] a reason for why the ABR check is made\n         * @private\n         */\n\n        checkABR_(reason = 'abr') {\n            const nextPlaylist = this.selectPlaylist();\n            if (nextPlaylist && this.shouldSwitchToMedia_(nextPlaylist)) {\n                this.switchMedia_(nextPlaylist, reason);\n            }\n        }\n        switchMedia_(playlist, cause, delay) {\n            const oldMedia = this.media();\n            const oldId = oldMedia && (oldMedia.id || oldMedia.uri);\n            const newId = playlist.id || playlist.uri;\n            if (oldId && oldId !== newId) {\n                this.logger_(`switch media ${oldId} -> ${newId} from ${cause}`);\n                this.tech_.trigger({\n                    type: 'usage',\n                    name: `vhs-rendition-change-${cause}`\n                });\n            }\n            this.mainPlaylistLoader_.media(playlist, delay);\n        }\n        /**\n         * Start a timer that periodically calls checkABR_\n         *\n         * @private\n         */\n\n        startABRTimer_() {\n            this.stopABRTimer_();\n            this.abrTimer_ = window.setInterval(() => this.checkABR_(), 250);\n        }\n        /**\n         * Stop the timer that periodically calls checkABR_\n         *\n         * @private\n         */\n\n        stopABRTimer_() {\n            // if we're scrubbing, we don't need to pause.\n            // This getter will be added to Video.js in version 7.11.\n            if (this.tech_.scrubbing && this.tech_.scrubbing()) {\n                return;\n            }\n            window.clearInterval(this.abrTimer_);\n            this.abrTimer_ = null;\n        }\n        /**\n         * Get a list of playlists for the currently selected audio playlist\n         *\n         * @return {Array} the array of audio playlists\n         */\n\n        getAudioTrackPlaylists_() {\n            const main = this.main();\n            const defaultPlaylists = main && main.playlists || []; // if we don't have any audio groups then we can only\n            // assume that the audio tracks are contained in main\n            // playlist array, use that or an empty array.\n\n            if (!main || !main.mediaGroups || !main.mediaGroups.AUDIO) {\n                return defaultPlaylists;\n            }\n            const AUDIO = main.mediaGroups.AUDIO;\n            const groupKeys = Object.keys(AUDIO);\n            let track; // get the current active track\n\n            if (Object.keys(this.mediaTypes_.AUDIO.groups).length) {\n                track = this.mediaTypes_.AUDIO.activeTrack(); // or get the default track from main if mediaTypes_ isn't setup yet\n            } else {\n                // default group is `main` or just the first group.\n                const defaultGroup = AUDIO.main || groupKeys.length && AUDIO[groupKeys[0]];\n                for (const label in defaultGroup) {\n                    if (defaultGroup[label].default) {\n                        track = {\n                            label\n                        };\n                        break;\n                    }\n                }\n            } // no active track no playlists.\n\n            if (!track) {\n                return defaultPlaylists;\n            }\n            const playlists = []; // get all of the playlists that are possible for the\n            // active track.\n\n            for (const group in AUDIO) {\n                if (AUDIO[group][track.label]) {\n                    const properties = AUDIO[group][track.label];\n                    if (properties.playlists && properties.playlists.length) {\n                        playlists.push.apply(playlists, properties.playlists);\n                    } else if (properties.uri) {\n                        playlists.push(properties);\n                    } else if (main.playlists.length) {\n                        // if an audio group does not have a uri\n                        // see if we have main playlists that use it as a group.\n                        // if we do then add those to the playlists list.\n                        for (let i = 0; i < main.playlists.length; i++) {\n                            const playlist = main.playlists[i];\n                            if (playlist.attributes && playlist.attributes.AUDIO && playlist.attributes.AUDIO === group) {\n                                playlists.push(playlist);\n                            }\n                        }\n                    }\n                }\n            }\n            if (!playlists.length) {\n                return defaultPlaylists;\n            }\n            return playlists;\n        }\n        /**\n         * Register event handlers on the main playlist loader. A helper\n         * function for construction time.\n         *\n         * @private\n         */\n\n        setupMainPlaylistLoaderListeners_() {\n            this.mainPlaylistLoader_.on('loadedmetadata', () => {\n                const media = this.mainPlaylistLoader_.media();\n                const requestTimeout = media.targetDuration * 1.5 * 1000; // If we don't have any more available playlists, we don't want to\n                // timeout the request.\n\n                if (isLowestEnabledRendition(this.mainPlaylistLoader_.main, this.mainPlaylistLoader_.media())) {\n                    this.requestOptions_.timeout = 0;\n                } else {\n                    this.requestOptions_.timeout = requestTimeout;\n                } // if this isn't a live video and preload permits, start\n                // downloading segments\n\n                if (media.endList && this.tech_.preload() !== 'none') {\n                    this.mainSegmentLoader_.playlist(media, this.requestOptions_);\n                    this.mainSegmentLoader_.load();\n                }\n                setupMediaGroups({\n                    sourceType: this.sourceType_,\n                    segmentLoaders: {\n                        AUDIO: this.audioSegmentLoader_,\n                        SUBTITLES: this.subtitleSegmentLoader_,\n                        main: this.mainSegmentLoader_\n                    },\n                    tech: this.tech_,\n                    requestOptions: this.requestOptions_,\n                    mainPlaylistLoader: this.mainPlaylistLoader_,\n                    vhs: this.vhs_,\n                    main: this.main(),\n                    mediaTypes: this.mediaTypes_,\n                    excludePlaylist: this.excludePlaylist.bind(this)\n                });\n                this.triggerPresenceUsage_(this.main(), media);\n                this.setupFirstPlay();\n                if (!this.mediaTypes_.AUDIO.activePlaylistLoader || this.mediaTypes_.AUDIO.activePlaylistLoader.media()) {\n                    this.trigger('selectedinitialmedia');\n                } else {\n                    // We must wait for the active audio playlist loader to\n                    // finish setting up before triggering this event so the\n                    // representations API and EME setup is correct\n                    this.mediaTypes_.AUDIO.activePlaylistLoader.one('loadedmetadata', () => {\n                        this.trigger('selectedinitialmedia');\n                    });\n                }\n            });\n            this.mainPlaylistLoader_.on('loadedplaylist', () => {\n                if (this.loadOnPlay_) {\n                    this.tech_.off('play', this.loadOnPlay_);\n                }\n                let updatedPlaylist = this.mainPlaylistLoader_.media();\n                if (!updatedPlaylist) {\n                    // exclude any variants that are not supported by the browser before selecting\n                    // an initial media as the playlist selectors do not consider browser support\n                    this.excludeUnsupportedVariants_();\n                    let selectedMedia;\n                    if (this.enableLowInitialPlaylist) {\n                        selectedMedia = this.selectInitialPlaylist();\n                    }\n                    if (!selectedMedia) {\n                        selectedMedia = this.selectPlaylist();\n                    }\n                    if (!selectedMedia || !this.shouldSwitchToMedia_(selectedMedia)) {\n                        return;\n                    }\n                    this.initialMedia_ = selectedMedia;\n                    this.switchMedia_(this.initialMedia_, 'initial'); // Under the standard case where a source URL is provided, loadedplaylist will\n                    // fire again since the playlist will be requested. In the case of vhs-json\n                    // (where the manifest object is provided as the source), when the media\n                    // playlist's `segments` list is already available, a media playlist won't be\n                    // requested, and loadedplaylist won't fire again, so the playlist handler must be\n                    // called on its own here.\n\n                    const haveJsonSource = this.sourceType_ === 'vhs-json' && this.initialMedia_.segments;\n                    if (!haveJsonSource) {\n                        return;\n                    }\n                    updatedPlaylist = this.initialMedia_;\n                }\n                this.handleUpdatedMediaPlaylist(updatedPlaylist);\n            });\n            this.mainPlaylistLoader_.on('error', () => {\n                const error = this.mainPlaylistLoader_.error;\n                this.excludePlaylist({\n                    playlistToExclude: error.playlist,\n                    error\n                });\n            });\n            this.mainPlaylistLoader_.on('mediachanging', () => {\n                this.mainSegmentLoader_.abort();\n                this.mainSegmentLoader_.pause();\n            });\n            this.mainPlaylistLoader_.on('mediachange', () => {\n                const media = this.mainPlaylistLoader_.media();\n                const requestTimeout = media.targetDuration * 1.5 * 1000; // If we don't have any more available playlists, we don't want to\n                // timeout the request.\n\n                if (isLowestEnabledRendition(this.mainPlaylistLoader_.main, this.mainPlaylistLoader_.media())) {\n                    this.requestOptions_.timeout = 0;\n                } else {\n                    this.requestOptions_.timeout = requestTimeout;\n                }\n                this.mainPlaylistLoader_.load(); // TODO: Create a new event on the PlaylistLoader that signals\n                // that the segments have changed in some way and use that to\n                // update the SegmentLoader instead of doing it twice here and\n                // on `loadedplaylist`\n\n                this.mainSegmentLoader_.playlist(media, this.requestOptions_);\n                this.mainSegmentLoader_.load();\n                this.tech_.trigger({\n                    type: 'mediachange',\n                    bubbles: true\n                });\n            });\n            this.mainPlaylistLoader_.on('playlistunchanged', () => {\n                const updatedPlaylist = this.mainPlaylistLoader_.media(); // ignore unchanged playlists that have already been\n                // excluded for not-changing. We likely just have a really slowly updating\n                // playlist.\n\n                if (updatedPlaylist.lastExcludeReason_ === 'playlist-unchanged') {\n                    return;\n                }\n                const playlistOutdated = this.stuckAtPlaylistEnd_(updatedPlaylist);\n                if (playlistOutdated) {\n                    // Playlist has stopped updating and we're stuck at its end. Try to\n                    // exclude it and switch to another playlist in the hope that that\n                    // one is updating (and give the player a chance to re-adjust to the\n                    // safe live point).\n                    this.excludePlaylist({\n                        error: {\n                            message: 'Playlist no longer updating.',\n                            reason: 'playlist-unchanged'\n                        }\n                    }); // useful for monitoring QoS\n\n                    this.tech_.trigger('playliststuck');\n                }\n            });\n            this.mainPlaylistLoader_.on('renditiondisabled', () => {\n                this.tech_.trigger({\n                    type: 'usage',\n                    name: 'vhs-rendition-disabled'\n                });\n            });\n            this.mainPlaylistLoader_.on('renditionenabled', () => {\n                this.tech_.trigger({\n                    type: 'usage',\n                    name: 'vhs-rendition-enabled'\n                });\n            });\n        }\n        /**\n         * Given an updated media playlist (whether it was loaded for the first time, or\n         * refreshed for live playlists), update any relevant properties and state to reflect\n         * changes in the media that should be accounted for (e.g., cues and duration).\n         *\n         * @param {Object} updatedPlaylist the updated media playlist object\n         *\n         * @private\n         */\n\n        handleUpdatedMediaPlaylist(updatedPlaylist) {\n            if (this.useCueTags_) {\n                this.updateAdCues_(updatedPlaylist);\n            } // TODO: Create a new event on the PlaylistLoader that signals\n            // that the segments have changed in some way and use that to\n            // update the SegmentLoader instead of doing it twice here and\n            // on `mediachange`\n\n            this.mainSegmentLoader_.playlist(updatedPlaylist, this.requestOptions_);\n            this.updateDuration(!updatedPlaylist.endList); // If the player isn't paused, ensure that the segment loader is running,\n            // as it is possible that it was temporarily stopped while waiting for\n            // a playlist (e.g., in case the playlist errored and we re-requested it).\n\n            if (!this.tech_.paused()) {\n                this.mainSegmentLoader_.load();\n                if (this.audioSegmentLoader_) {\n                    this.audioSegmentLoader_.load();\n                }\n            }\n        }\n        /**\n         * A helper function for triggerring presence usage events once per source\n         *\n         * @private\n         */\n\n        triggerPresenceUsage_(main, media) {\n            const mediaGroups = main.mediaGroups || {};\n            let defaultDemuxed = true;\n            const audioGroupKeys = Object.keys(mediaGroups.AUDIO);\n            for (const mediaGroup in mediaGroups.AUDIO) {\n                for (const label in mediaGroups.AUDIO[mediaGroup]) {\n                    const properties = mediaGroups.AUDIO[mediaGroup][label];\n                    if (!properties.uri) {\n                        defaultDemuxed = false;\n                    }\n                }\n            }\n            if (defaultDemuxed) {\n                this.tech_.trigger({\n                    type: 'usage',\n                    name: 'vhs-demuxed'\n                });\n            }\n            if (Object.keys(mediaGroups.SUBTITLES).length) {\n                this.tech_.trigger({\n                    type: 'usage',\n                    name: 'vhs-webvtt'\n                });\n            }\n            if (Vhs$1.Playlist.isAes(media)) {\n                this.tech_.trigger({\n                    type: 'usage',\n                    name: 'vhs-aes'\n                });\n            }\n            if (audioGroupKeys.length && Object.keys(mediaGroups.AUDIO[audioGroupKeys[0]]).length > 1) {\n                this.tech_.trigger({\n                    type: 'usage',\n                    name: 'vhs-alternate-audio'\n                });\n            }\n            if (this.useCueTags_) {\n                this.tech_.trigger({\n                    type: 'usage',\n                    name: 'vhs-playlist-cue-tags'\n                });\n            }\n        }\n        shouldSwitchToMedia_(nextPlaylist) {\n            const currentPlaylist = this.mainPlaylistLoader_.media() || this.mainPlaylistLoader_.pendingMedia_;\n            const currentTime = this.tech_.currentTime();\n            const bufferLowWaterLine = this.bufferLowWaterLine();\n            const bufferHighWaterLine = this.bufferHighWaterLine();\n            const buffered = this.tech_.buffered();\n            return shouldSwitchToMedia({\n                buffered,\n                currentTime,\n                currentPlaylist,\n                nextPlaylist,\n                bufferLowWaterLine,\n                bufferHighWaterLine,\n                duration: this.duration(),\n                bufferBasedABR: this.bufferBasedABR,\n                log: this.logger_\n            });\n        }\n        /**\n         * Register event handlers on the segment loaders. A helper function\n         * for construction time.\n         *\n         * @private\n         */\n\n        setupSegmentLoaderListeners_() {\n            this.mainSegmentLoader_.on('bandwidthupdate', () => {\n                // Whether or not buffer based ABR or another ABR is used, on a bandwidth change it's\n                // useful to check to see if a rendition switch should be made.\n                this.checkABR_('bandwidthupdate');\n                this.tech_.trigger('bandwidthupdate');\n            });\n            this.mainSegmentLoader_.on('timeout', () => {\n                if (this.bufferBasedABR) {\n                    // If a rendition change is needed, then it would've be done on `bandwidthupdate`.\n                    // Here the only consideration is that for buffer based ABR there's no guarantee\n                    // of an immediate switch (since the bandwidth is averaged with a timeout\n                    // bandwidth value of 1), so force a load on the segment loader to keep it going.\n                    this.mainSegmentLoader_.load();\n                }\n            }); // `progress` events are not reliable enough of a bandwidth measure to trigger buffer\n            // based ABR.\n\n            if (!this.bufferBasedABR) {\n                this.mainSegmentLoader_.on('progress', () => {\n                    this.trigger('progress');\n                });\n            }\n            this.mainSegmentLoader_.on('error', () => {\n                const error = this.mainSegmentLoader_.error();\n                this.excludePlaylist({\n                    playlistToExclude: error.playlist,\n                    error\n                });\n            });\n            this.mainSegmentLoader_.on('appenderror', () => {\n                this.error = this.mainSegmentLoader_.error_;\n                this.trigger('error');\n            });\n            this.mainSegmentLoader_.on('syncinfoupdate', () => {\n                this.onSyncInfoUpdate_();\n            });\n            this.mainSegmentLoader_.on('timestampoffset', () => {\n                this.tech_.trigger({\n                    type: 'usage',\n                    name: 'vhs-timestamp-offset'\n                });\n            });\n            this.audioSegmentLoader_.on('syncinfoupdate', () => {\n                this.onSyncInfoUpdate_();\n            });\n            this.audioSegmentLoader_.on('appenderror', () => {\n                this.error = this.audioSegmentLoader_.error_;\n                this.trigger('error');\n            });\n            this.mainSegmentLoader_.on('ended', () => {\n                this.logger_('main segment loader ended');\n                this.onEndOfStream();\n            });\n            this.mainSegmentLoader_.on('earlyabort', event => {\n                // never try to early abort with the new ABR algorithm\n                if (this.bufferBasedABR) {\n                    return;\n                }\n                this.delegateLoaders_('all', ['abort']);\n                this.excludePlaylist({\n                    error: {\n                        message: 'Aborted early because there isn\\'t enough bandwidth to complete ' + 'the request without rebuffering.'\n                    },\n                    playlistExclusionDuration: ABORT_EARLY_EXCLUSION_SECONDS\n                });\n            });\n            const updateCodecs = () => {\n                if (!this.sourceUpdater_.hasCreatedSourceBuffers()) {\n                    return this.tryToCreateSourceBuffers_();\n                }\n                const codecs = this.getCodecsOrExclude_(); // no codecs means that the playlist was excluded\n\n                if (!codecs) {\n                    return;\n                }\n                this.sourceUpdater_.addOrChangeSourceBuffers(codecs);\n            };\n            this.mainSegmentLoader_.on('trackinfo', updateCodecs);\n            this.audioSegmentLoader_.on('trackinfo', updateCodecs);\n            this.mainSegmentLoader_.on('fmp4', () => {\n                if (!this.triggeredFmp4Usage) {\n                    this.tech_.trigger({\n                        type: 'usage',\n                        name: 'vhs-fmp4'\n                    });\n                    this.triggeredFmp4Usage = true;\n                }\n            });\n            this.audioSegmentLoader_.on('fmp4', () => {\n                if (!this.triggeredFmp4Usage) {\n                    this.tech_.trigger({\n                        type: 'usage',\n                        name: 'vhs-fmp4'\n                    });\n                    this.triggeredFmp4Usage = true;\n                }\n            });\n            this.audioSegmentLoader_.on('ended', () => {\n                this.logger_('audioSegmentLoader ended');\n                this.onEndOfStream();\n            });\n        }\n        mediaSecondsLoaded_() {\n            return Math.max(this.audioSegmentLoader_.mediaSecondsLoaded + this.mainSegmentLoader_.mediaSecondsLoaded);\n        }\n        /**\n         * Call load on our SegmentLoaders\n         */\n\n        load() {\n            this.mainSegmentLoader_.load();\n            if (this.mediaTypes_.AUDIO.activePlaylistLoader) {\n                this.audioSegmentLoader_.load();\n            }\n            if (this.mediaTypes_.SUBTITLES.activePlaylistLoader) {\n                this.subtitleSegmentLoader_.load();\n            }\n        }\n        /**\n         * Re-tune playback quality level for the current player\n         * conditions. This method will perform destructive actions like removing\n         * already buffered content in order to readjust the currently active\n         * playlist quickly. This is good for manual quality changes\n         *\n         * @private\n         */\n\n        fastQualityChange_(media = this.selectPlaylist()) {\n            if (media === this.mainPlaylistLoader_.media()) {\n                this.logger_('skipping fastQualityChange because new media is same as old');\n                return;\n            }\n            this.switchMedia_(media, 'fast-quality'); // Delete all buffered data to allow an immediate quality switch, then seek to give\n            // the browser a kick to remove any cached frames from the previous rendtion (.04 seconds\n            // ahead is roughly the minimum that will accomplish this across a variety of content\n            // in IE and Edge, but seeking in place is sufficient on all other browsers)\n            // Edge/IE bug: https://developer.microsoft.com/en-us/microsoft-edge/platform/issues/14600375/\n            // Chrome bug: https://bugs.chromium.org/p/chromium/issues/detail?id=651904\n\n            this.mainSegmentLoader_.resetEverything(() => {\n                // Since this is not a typical seek, we avoid the seekTo method which can cause segments\n                // from the previously enabled rendition to load before the new playlist has finished loading\n                if (videojs.browser.IE_VERSION || videojs.browser.IS_EDGE) {\n                    this.tech_.setCurrentTime(this.tech_.currentTime() + 0.04);\n                } else {\n                    this.tech_.setCurrentTime(this.tech_.currentTime());\n                }\n            }); // don't need to reset audio as it is reset when media changes\n        }\n        /**\n         * Begin playback.\n         */\n\n        play() {\n            if (this.setupFirstPlay()) {\n                return;\n            }\n            if (this.tech_.ended()) {\n                this.tech_.setCurrentTime(0);\n            }\n            if (this.hasPlayed_) {\n                this.load();\n            }\n            const seekable = this.tech_.seekable(); // if the viewer has paused and we fell out of the live window,\n            // seek forward to the live point\n\n            if (this.tech_.duration() === Infinity) {\n                if (this.tech_.currentTime() < seekable.start(0)) {\n                    return this.tech_.setCurrentTime(seekable.end(seekable.length - 1));\n                }\n            }\n        }\n        /**\n         * Seek to the latest media position if this is a live video and the\n         * player and video are loaded and initialized.\n         */\n\n        setupFirstPlay() {\n            const media = this.mainPlaylistLoader_.media(); // Check that everything is ready to begin buffering for the first call to play\n            //  If 1) there is no active media\n            //     2) the player is paused\n            //     3) the first play has already been setup\n            // then exit early\n\n            if (!media || this.tech_.paused() || this.hasPlayed_) {\n                return false;\n            } // when the video is a live stream\n\n            if (!media.endList) {\n                const seekable = this.seekable();\n                if (!seekable.length) {\n                    // without a seekable range, the player cannot seek to begin buffering at the live\n                    // point\n                    return false;\n                }\n                if (videojs.browser.IE_VERSION && this.tech_.readyState() === 0) {\n                    // IE11 throws an InvalidStateError if you try to set currentTime while the\n                    // readyState is 0, so it must be delayed until the tech fires loadedmetadata.\n                    this.tech_.one('loadedmetadata', () => {\n                        this.trigger('firstplay');\n                        this.tech_.setCurrentTime(seekable.end(0));\n                        this.hasPlayed_ = true;\n                    });\n                    return false;\n                } // trigger firstplay to inform the source handler to ignore the next seek event\n\n                this.trigger('firstplay'); // seek to the live point\n\n                this.tech_.setCurrentTime(seekable.end(0));\n            }\n            this.hasPlayed_ = true; // we can begin loading now that everything is ready\n\n            this.load();\n            return true;\n        }\n        /**\n         * handle the sourceopen event on the MediaSource\n         *\n         * @private\n         */\n\n        handleSourceOpen_() {\n            // Only attempt to create the source buffer if none already exist.\n            // handleSourceOpen is also called when we are \"re-opening\" a source buffer\n            // after `endOfStream` has been called (in response to a seek for instance)\n            this.tryToCreateSourceBuffers_(); // if autoplay is enabled, begin playback. This is duplicative of\n            // code in video.js but is required because play() must be invoked\n            // *after* the media source has opened.\n\n            if (this.tech_.autoplay()) {\n                const playPromise = this.tech_.play(); // Catch/silence error when a pause interrupts a play request\n                // on browsers which return a promise\n\n                if (typeof playPromise !== 'undefined' && typeof playPromise.then === 'function') {\n                    playPromise.then(null, e => {});\n                }\n            }\n            this.trigger('sourceopen');\n        }\n        /**\n         * handle the sourceended event on the MediaSource\n         *\n         * @private\n         */\n\n        handleSourceEnded_() {\n            if (!this.inbandTextTracks_.metadataTrack_) {\n                return;\n            }\n            const cues = this.inbandTextTracks_.metadataTrack_.cues;\n            if (!cues || !cues.length) {\n                return;\n            }\n            const duration = this.duration();\n            cues[cues.length - 1].endTime = isNaN(duration) || Math.abs(duration) === Infinity ? Number.MAX_VALUE : duration;\n        }\n        /**\n         * handle the durationchange event on the MediaSource\n         *\n         * @private\n         */\n\n        handleDurationChange_() {\n            this.tech_.trigger('durationchange');\n        }\n        /**\n         * Calls endOfStream on the media source when all active stream types have called\n         * endOfStream\n         *\n         * @param {string} streamType\n         *        Stream type of the segment loader that called endOfStream\n         * @private\n         */\n\n        onEndOfStream() {\n            let isEndOfStream = this.mainSegmentLoader_.ended_;\n            if (this.mediaTypes_.AUDIO.activePlaylistLoader) {\n                const mainMediaInfo = this.mainSegmentLoader_.getCurrentMediaInfo_(); // if the audio playlist loader exists, then alternate audio is active\n\n                if (!mainMediaInfo || mainMediaInfo.hasVideo) {\n                    // if we do not know if the main segment loader contains video yet or if we\n                    // definitively know the main segment loader contains video, then we need to wait\n                    // for both main and audio segment loaders to call endOfStream\n                    isEndOfStream = isEndOfStream && this.audioSegmentLoader_.ended_;\n                } else {\n                    // otherwise just rely on the audio loader\n                    isEndOfStream = this.audioSegmentLoader_.ended_;\n                }\n            }\n            if (!isEndOfStream) {\n                return;\n            }\n            this.stopABRTimer_();\n            this.sourceUpdater_.endOfStream();\n        }\n        /**\n         * Check if a playlist has stopped being updated\n         *\n         * @param {Object} playlist the media playlist object\n         * @return {boolean} whether the playlist has stopped being updated or not\n         */\n\n        stuckAtPlaylistEnd_(playlist) {\n            const seekable = this.seekable();\n            if (!seekable.length) {\n                // playlist doesn't have enough information to determine whether we are stuck\n                return false;\n            }\n            const expired = this.syncController_.getExpiredTime(playlist, this.duration());\n            if (expired === null) {\n                return false;\n            } // does not use the safe live end to calculate playlist end, since we\n            // don't want to say we are stuck while there is still content\n\n            const absolutePlaylistEnd = Vhs$1.Playlist.playlistEnd(playlist, expired);\n            const currentTime = this.tech_.currentTime();\n            const buffered = this.tech_.buffered();\n            if (!buffered.length) {\n                // return true if the playhead reached the absolute end of the playlist\n                return absolutePlaylistEnd - currentTime <= SAFE_TIME_DELTA;\n            }\n            const bufferedEnd = buffered.end(buffered.length - 1); // return true if there is too little buffer left and buffer has reached absolute\n            // end of playlist\n\n            return bufferedEnd - currentTime <= SAFE_TIME_DELTA && absolutePlaylistEnd - bufferedEnd <= SAFE_TIME_DELTA;\n        }\n        /**\n         * Exclude a playlist for a set amount of time, making it unavailable for selection by\n         * the rendition selection algorithm, then force a new playlist (rendition) selection.\n         *\n         * @param {Object=} playlistToExclude\n         *                  the playlist to exclude, defaults to the currently selected playlist\n         * @param {Object=} error\n         *                  an optional error\n         * @param {number=} playlistExclusionDuration\n         *                  an optional number of seconds to exclude the playlist\n         */\n\n        excludePlaylist({\n                            playlistToExclude = this.mainPlaylistLoader_.media(),\n                            error = {},\n                            playlistExclusionDuration\n                        }) {\n            // If the `error` was generated by the playlist loader, it will contain\n            // the playlist we were trying to load (but failed) and that should be\n            // excluded instead of the currently selected playlist which is likely\n            // out-of-date in this scenario\n            playlistToExclude = playlistToExclude || this.mainPlaylistLoader_.media();\n            playlistExclusionDuration = playlistExclusionDuration || error.playlistExclusionDuration || this.playlistExclusionDuration; // If there is no current playlist, then an error occurred while we were\n            // trying to load the main OR while we were disposing of the tech\n\n            if (!playlistToExclude) {\n                this.error = error;\n                if (this.mediaSource.readyState !== 'open') {\n                    this.trigger('error');\n                } else {\n                    this.sourceUpdater_.endOfStream('network');\n                }\n                return;\n            }\n            playlistToExclude.playlistErrors_++;\n            const playlists = this.mainPlaylistLoader_.main.playlists;\n            const enabledPlaylists = playlists.filter(isEnabled);\n            const isFinalRendition = enabledPlaylists.length === 1 && enabledPlaylists[0] === playlistToExclude; // Don't exclude the only playlist unless it was excluded\n            // forever\n\n            if (playlists.length === 1 && playlistExclusionDuration !== Infinity) {\n                videojs.log.warn(`Problem encountered with playlist ${playlistToExclude.id}. ` + 'Trying again since it is the only playlist.');\n                this.tech_.trigger('retryplaylist'); // if this is a final rendition, we should delay\n\n                return this.mainPlaylistLoader_.load(isFinalRendition);\n            }\n            if (isFinalRendition) {\n                // Since we're on the final non-excluded playlist, and we're about to exclude\n                // it, instead of erring the player or retrying this playlist, clear out the current\n                // exclusion list. This allows other playlists to be attempted in case any have been\n                // fixed.\n                let reincluded = false;\n                playlists.forEach(playlist => {\n                    // skip current playlist which is about to be excluded\n                    if (playlist === playlistToExclude) {\n                        return;\n                    }\n                    const excludeUntil = playlist.excludeUntil; // a playlist cannot be reincluded if it wasn't excluded to begin with.\n\n                    if (typeof excludeUntil !== 'undefined' && excludeUntil !== Infinity) {\n                        reincluded = true;\n                        delete playlist.excludeUntil;\n                    }\n                });\n                if (reincluded) {\n                    videojs.log.warn('Removing other playlists from the exclusion list because the last ' + 'rendition is about to be excluded.'); // Technically we are retrying a playlist, in that we are simply retrying a previous\n                    // playlist. This is needed for users relying on the retryplaylist event to catch a\n                    // case where the player might be stuck and looping through \"dead\" playlists.\n\n                    this.tech_.trigger('retryplaylist');\n                }\n            } // Exclude this playlist\n\n            let excludeUntil;\n            if (playlistToExclude.playlistErrors_ > this.maxPlaylistRetries) {\n                excludeUntil = Infinity;\n            } else {\n                excludeUntil = Date.now() + playlistExclusionDuration * 1000;\n            }\n            playlistToExclude.excludeUntil = excludeUntil;\n            if (error.reason) {\n                playlistToExclude.lastExcludeReason_ = error.reason;\n            }\n            this.tech_.trigger('excludeplaylist');\n            this.tech_.trigger({\n                type: 'usage',\n                name: 'vhs-rendition-excluded'\n            }); // TODO: only load a new playlist if we're excluding the current playlist\n            // If this function was called with a playlist that's not the current active playlist\n            // (e.g., media().id !== playlistToExclude.id),\n            // then a new playlist should not be selected and loaded, as there's nothing wrong with the current playlist.\n\n            const nextPlaylist = this.selectPlaylist();\n            if (!nextPlaylist) {\n                this.error = 'Playback cannot continue. No available working or supported playlists.';\n                this.trigger('error');\n                return;\n            }\n            const logFn = error.internal ? this.logger_ : videojs.log.warn;\n            const errorMessage = error.message ? ' ' + error.message : '';\n            logFn(`${error.internal ? 'Internal problem' : 'Problem'} encountered with playlist ${playlistToExclude.id}.` + `${errorMessage} Switching to playlist ${nextPlaylist.id}.`); // if audio group changed reset audio loaders\n\n            if (nextPlaylist.attributes.AUDIO !== playlistToExclude.attributes.AUDIO) {\n                this.delegateLoaders_('audio', ['abort', 'pause']);\n            } // if subtitle group changed reset subtitle loaders\n\n            if (nextPlaylist.attributes.SUBTITLES !== playlistToExclude.attributes.SUBTITLES) {\n                this.delegateLoaders_('subtitle', ['abort', 'pause']);\n            }\n            this.delegateLoaders_('main', ['abort', 'pause']);\n            const delayDuration = nextPlaylist.targetDuration / 2 * 1000 || 5 * 1000;\n            const shouldDelay = typeof nextPlaylist.lastRequest === 'number' && Date.now() - nextPlaylist.lastRequest <= delayDuration; // delay if it's a final rendition or if the last refresh is sooner than half targetDuration\n\n            return this.switchMedia_(nextPlaylist, 'exclude', isFinalRendition || shouldDelay);\n        }\n        /**\n         * Pause all segment/playlist loaders\n         */\n\n        pauseLoading() {\n            this.delegateLoaders_('all', ['abort', 'pause']);\n            this.stopABRTimer_();\n        }\n        /**\n         * Call a set of functions in order on playlist loaders, segment loaders,\n         * or both types of loaders.\n         *\n         * @param {string} filter\n         *        Filter loaders that should call fnNames using a string. Can be:\n         *        * all - run on all loaders\n         *        * audio - run on all audio loaders\n         *        * subtitle - run on all subtitle loaders\n         *        * main - run on the main loaders\n         *\n         * @param {Array|string} fnNames\n         *        A string or array of function names to call.\n         */\n\n        delegateLoaders_(filter, fnNames) {\n            const loaders = [];\n            const dontFilterPlaylist = filter === 'all';\n            if (dontFilterPlaylist || filter === 'main') {\n                loaders.push(this.mainPlaylistLoader_);\n            }\n            const mediaTypes = [];\n            if (dontFilterPlaylist || filter === 'audio') {\n                mediaTypes.push('AUDIO');\n            }\n            if (dontFilterPlaylist || filter === 'subtitle') {\n                mediaTypes.push('CLOSED-CAPTIONS');\n                mediaTypes.push('SUBTITLES');\n            }\n            mediaTypes.forEach(mediaType => {\n                const loader = this.mediaTypes_[mediaType] && this.mediaTypes_[mediaType].activePlaylistLoader;\n                if (loader) {\n                    loaders.push(loader);\n                }\n            });\n            ['main', 'audio', 'subtitle'].forEach(name => {\n                const loader = this[`${name}SegmentLoader_`];\n                if (loader && (filter === name || filter === 'all')) {\n                    loaders.push(loader);\n                }\n            });\n            loaders.forEach(loader => fnNames.forEach(fnName => {\n                if (typeof loader[fnName] === 'function') {\n                    loader[fnName]();\n                }\n            }));\n        }\n        /**\n         * set the current time on all segment loaders\n         *\n         * @param {TimeRange} currentTime the current time to set\n         * @return {TimeRange} the current time\n         */\n\n        setCurrentTime(currentTime) {\n            const buffered = findRange(this.tech_.buffered(), currentTime);\n            if (!(this.mainPlaylistLoader_ && this.mainPlaylistLoader_.media())) {\n                // return immediately if the metadata is not ready yet\n                return 0;\n            } // it's clearly an edge-case but don't thrown an error if asked to\n            // seek within an empty playlist\n\n            if (!this.mainPlaylistLoader_.media().segments) {\n                return 0;\n            } // if the seek location is already buffered, continue buffering as usual\n\n            if (buffered && buffered.length) {\n                return currentTime;\n            } // cancel outstanding requests so we begin buffering at the new\n            // location\n\n            this.mainSegmentLoader_.resetEverything();\n            this.mainSegmentLoader_.abort();\n            if (this.mediaTypes_.AUDIO.activePlaylistLoader) {\n                this.audioSegmentLoader_.resetEverything();\n                this.audioSegmentLoader_.abort();\n            }\n            if (this.mediaTypes_.SUBTITLES.activePlaylistLoader) {\n                this.subtitleSegmentLoader_.resetEverything();\n                this.subtitleSegmentLoader_.abort();\n            } // start segment loader loading in case they are paused\n\n            this.load();\n        }\n        /**\n         * get the current duration\n         *\n         * @return {TimeRange} the duration\n         */\n\n        duration() {\n            if (!this.mainPlaylistLoader_) {\n                return 0;\n            }\n            const media = this.mainPlaylistLoader_.media();\n            if (!media) {\n                // no playlists loaded yet, so can't determine a duration\n                return 0;\n            } // Don't rely on the media source for duration in the case of a live playlist since\n            // setting the native MediaSource's duration to infinity ends up with consequences to\n            // seekable behavior. See https://github.com/w3c/media-source/issues/5 for details.\n            //\n            // This is resolved in the spec by https://github.com/w3c/media-source/pull/92,\n            // however, few browsers have support for setLiveSeekableRange()\n            // https://developer.mozilla.org/en-US/docs/Web/API/MediaSource/setLiveSeekableRange\n            //\n            // Until a time when the duration of the media source can be set to infinity, and a\n            // seekable range specified across browsers, just return Infinity.\n\n            if (!media.endList) {\n                return Infinity;\n            } // Since this is a VOD video, it is safe to rely on the media source's duration (if\n            // available). If it's not available, fall back to a playlist-calculated estimate.\n\n            if (this.mediaSource) {\n                return this.mediaSource.duration;\n            }\n            return Vhs$1.Playlist.duration(media);\n        }\n        /**\n         * check the seekable range\n         *\n         * @return {TimeRange} the seekable range\n         */\n\n        seekable() {\n            return this.seekable_;\n        }\n        onSyncInfoUpdate_() {\n            let audioSeekable; // TODO check for creation of both source buffers before updating seekable\n            //\n            // A fix was made to this function where a check for\n            // this.sourceUpdater_.hasCreatedSourceBuffers\n            // was added to ensure that both source buffers were created before seekable was\n            // updated. However, it originally had a bug where it was checking for a true and\n            // returning early instead of checking for false. Setting it to check for false to\n            // return early though created other issues. A call to play() would check for seekable\n            // end without verifying that a seekable range was present. In addition, even checking\n            // for that didn't solve some issues, as handleFirstPlay is sometimes worked around\n            // due to a media update calling load on the segment loaders, skipping a seek to live,\n            // thereby starting live streams at the beginning of the stream rather than at the end.\n            //\n            // This conditional should be fixed to wait for the creation of two source buffers at\n            // the same time as the other sections of code are fixed to properly seek to live and\n            // not throw an error due to checking for a seekable end when no seekable range exists.\n            //\n            // For now, fall back to the older behavior, with the understanding that the seekable\n            // range may not be completely correct, leading to a suboptimal initial live point.\n\n            if (!this.mainPlaylistLoader_) {\n                return;\n            }\n            let media = this.mainPlaylistLoader_.media();\n            if (!media) {\n                return;\n            }\n            let expired = this.syncController_.getExpiredTime(media, this.duration());\n            if (expired === null) {\n                // not enough information to update seekable\n                return;\n            }\n            const main = this.mainPlaylistLoader_.main;\n            const mainSeekable = Vhs$1.Playlist.seekable(media, expired, Vhs$1.Playlist.liveEdgeDelay(main, media));\n            if (mainSeekable.length === 0) {\n                return;\n            }\n            if (this.mediaTypes_.AUDIO.activePlaylistLoader) {\n                media = this.mediaTypes_.AUDIO.activePlaylistLoader.media();\n                expired = this.syncController_.getExpiredTime(media, this.duration());\n                if (expired === null) {\n                    return;\n                }\n                audioSeekable = Vhs$1.Playlist.seekable(media, expired, Vhs$1.Playlist.liveEdgeDelay(main, media));\n                if (audioSeekable.length === 0) {\n                    return;\n                }\n            }\n            let oldEnd;\n            let oldStart;\n            if (this.seekable_ && this.seekable_.length) {\n                oldEnd = this.seekable_.end(0);\n                oldStart = this.seekable_.start(0);\n            }\n            if (!audioSeekable) {\n                // seekable has been calculated based on buffering video data so it\n                // can be returned directly\n                this.seekable_ = mainSeekable;\n            } else if (audioSeekable.start(0) > mainSeekable.end(0) || mainSeekable.start(0) > audioSeekable.end(0)) {\n                // seekables are pretty far off, rely on main\n                this.seekable_ = mainSeekable;\n            } else {\n                this.seekable_ = createTimeRanges([[audioSeekable.start(0) > mainSeekable.start(0) ? audioSeekable.start(0) : mainSeekable.start(0), audioSeekable.end(0) < mainSeekable.end(0) ? audioSeekable.end(0) : mainSeekable.end(0)]]);\n            } // seekable is the same as last time\n\n            if (this.seekable_ && this.seekable_.length) {\n                if (this.seekable_.end(0) === oldEnd && this.seekable_.start(0) === oldStart) {\n                    return;\n                }\n            }\n            this.logger_(`seekable updated [${printableRange(this.seekable_)}]`);\n            this.tech_.trigger('seekablechanged');\n        }\n        /**\n         * Update the player duration\n         */\n\n        updateDuration(isLive) {\n            if (this.updateDuration_) {\n                this.mediaSource.removeEventListener('sourceopen', this.updateDuration_);\n                this.updateDuration_ = null;\n            }\n            if (this.mediaSource.readyState !== 'open') {\n                this.updateDuration_ = this.updateDuration.bind(this, isLive);\n                this.mediaSource.addEventListener('sourceopen', this.updateDuration_);\n                return;\n            }\n            if (isLive) {\n                const seekable = this.seekable();\n                if (!seekable.length) {\n                    return;\n                } // Even in the case of a live playlist, the native MediaSource's duration should not\n                // be set to Infinity (even though this would be expected for a live playlist), since\n                // setting the native MediaSource's duration to infinity ends up with consequences to\n                // seekable behavior. See https://github.com/w3c/media-source/issues/5 for details.\n                //\n                // This is resolved in the spec by https://github.com/w3c/media-source/pull/92,\n                // however, few browsers have support for setLiveSeekableRange()\n                // https://developer.mozilla.org/en-US/docs/Web/API/MediaSource/setLiveSeekableRange\n                //\n                // Until a time when the duration of the media source can be set to infinity, and a\n                // seekable range specified across browsers, the duration should be greater than or\n                // equal to the last possible seekable value.\n                // MediaSource duration starts as NaN\n                // It is possible (and probable) that this case will never be reached for many\n                // sources, since the MediaSource reports duration as the highest value without\n                // accounting for timestamp offset. For example, if the timestamp offset is -100 and\n                // we buffered times 0 to 100 with real times of 100 to 200, even though current\n                // time will be between 0 and 100, the native media source may report the duration\n                // as 200. However, since we report duration separate from the media source (as\n                // Infinity), and as long as the native media source duration value is greater than\n                // our reported seekable range, seeks will work as expected. The large number as\n                // duration for live is actually a strategy used by some players to work around the\n                // issue of live seekable ranges cited above.\n\n                if (isNaN(this.mediaSource.duration) || this.mediaSource.duration < seekable.end(seekable.length - 1)) {\n                    this.sourceUpdater_.setDuration(seekable.end(seekable.length - 1));\n                }\n                return;\n            }\n            const buffered = this.tech_.buffered();\n            let duration = Vhs$1.Playlist.duration(this.mainPlaylistLoader_.media());\n            if (buffered.length > 0) {\n                duration = Math.max(duration, buffered.end(buffered.length - 1));\n            }\n            if (this.mediaSource.duration !== duration) {\n                this.sourceUpdater_.setDuration(duration);\n            }\n        }\n        /**\n         * dispose of the PlaylistController and everything\n         * that it controls\n         */\n\n        dispose() {\n            this.trigger('dispose');\n            this.decrypter_.terminate();\n            this.mainPlaylistLoader_.dispose();\n            this.mainSegmentLoader_.dispose();\n            if (this.loadOnPlay_) {\n                this.tech_.off('play', this.loadOnPlay_);\n            }\n            ['AUDIO', 'SUBTITLES'].forEach(type => {\n                const groups = this.mediaTypes_[type].groups;\n                for (const id in groups) {\n                    groups[id].forEach(group => {\n                        if (group.playlistLoader) {\n                            group.playlistLoader.dispose();\n                        }\n                    });\n                }\n            });\n            this.audioSegmentLoader_.dispose();\n            this.subtitleSegmentLoader_.dispose();\n            this.sourceUpdater_.dispose();\n            this.timelineChangeController_.dispose();\n            this.stopABRTimer_();\n            if (this.updateDuration_) {\n                this.mediaSource.removeEventListener('sourceopen', this.updateDuration_);\n            }\n            this.mediaSource.removeEventListener('durationchange', this.handleDurationChange_); // load the media source into the player\n\n            this.mediaSource.removeEventListener('sourceopen', this.handleSourceOpen_);\n            this.mediaSource.removeEventListener('sourceended', this.handleSourceEnded_);\n            this.off();\n        }\n        /**\n         * return the main playlist object if we have one\n         *\n         * @return {Object} the main playlist object that we parsed\n         */\n\n        main() {\n            return this.mainPlaylistLoader_.main;\n        }\n        /**\n         * return the currently selected playlist\n         *\n         * @return {Object} the currently selected playlist object that we parsed\n         */\n\n        media() {\n            // playlist loader will not return media if it has not been fully loaded\n            return this.mainPlaylistLoader_.media() || this.initialMedia_;\n        }\n        areMediaTypesKnown_() {\n            const usingAudioLoader = !!this.mediaTypes_.AUDIO.activePlaylistLoader;\n            const hasMainMediaInfo = !!this.mainSegmentLoader_.getCurrentMediaInfo_(); // if we are not using an audio loader, then we have audio media info\n            // otherwise check on the segment loader.\n\n            const hasAudioMediaInfo = !usingAudioLoader ? true : !!this.audioSegmentLoader_.getCurrentMediaInfo_(); // one or both loaders has not loaded sufficently to get codecs\n\n            if (!hasMainMediaInfo || !hasAudioMediaInfo) {\n                return false;\n            }\n            return true;\n        }\n        getCodecsOrExclude_() {\n            const media = {\n                main: this.mainSegmentLoader_.getCurrentMediaInfo_() || {},\n                audio: this.audioSegmentLoader_.getCurrentMediaInfo_() || {}\n            };\n            const playlist = this.mainSegmentLoader_.getPendingSegmentPlaylist() || this.media(); // set \"main\" media equal to video\n\n            media.video = media.main;\n            const playlistCodecs = codecsForPlaylist(this.main(), playlist);\n            const codecs = {};\n            const usingAudioLoader = !!this.mediaTypes_.AUDIO.activePlaylistLoader;\n            if (media.main.hasVideo) {\n                codecs.video = playlistCodecs.video || media.main.videoCodec || DEFAULT_VIDEO_CODEC;\n            }\n            if (media.main.isMuxed) {\n                codecs.video += `,${playlistCodecs.audio || media.main.audioCodec || DEFAULT_AUDIO_CODEC}`;\n            }\n            if (media.main.hasAudio && !media.main.isMuxed || media.audio.hasAudio || usingAudioLoader) {\n                codecs.audio = playlistCodecs.audio || media.main.audioCodec || media.audio.audioCodec || DEFAULT_AUDIO_CODEC; // set audio isFmp4 so we use the correct \"supports\" function below\n\n                media.audio.isFmp4 = media.main.hasAudio && !media.main.isMuxed ? media.main.isFmp4 : media.audio.isFmp4;\n            } // no codecs, no playback.\n\n            if (!codecs.audio && !codecs.video) {\n                this.excludePlaylist({\n                    playlistToExclude: playlist,\n                    error: {\n                        message: 'Could not determine codecs for playlist.'\n                    },\n                    playlistExclusionDuration: Infinity\n                });\n                return;\n            } // fmp4 relies on browser support, while ts relies on muxer support\n\n            const supportFunction = (isFmp4, codec) => isFmp4 ? browserSupportsCodec(codec) : muxerSupportsCodec(codec);\n            const unsupportedCodecs = {};\n            let unsupportedAudio;\n            ['video', 'audio'].forEach(function (type) {\n                if (codecs.hasOwnProperty(type) && !supportFunction(media[type].isFmp4, codecs[type])) {\n                    const supporter = media[type].isFmp4 ? 'browser' : 'muxer';\n                    unsupportedCodecs[supporter] = unsupportedCodecs[supporter] || [];\n                    unsupportedCodecs[supporter].push(codecs[type]);\n                    if (type === 'audio') {\n                        unsupportedAudio = supporter;\n                    }\n                }\n            });\n            if (usingAudioLoader && unsupportedAudio && playlist.attributes.AUDIO) {\n                const audioGroup = playlist.attributes.AUDIO;\n                this.main().playlists.forEach(variant => {\n                    const variantAudioGroup = variant.attributes && variant.attributes.AUDIO;\n                    if (variantAudioGroup === audioGroup && variant !== playlist) {\n                        variant.excludeUntil = Infinity;\n                    }\n                });\n                this.logger_(`excluding audio group ${audioGroup} as ${unsupportedAudio} does not support codec(s): \"${codecs.audio}\"`);\n            } // if we have any unsupported codecs exclude this playlist.\n\n            if (Object.keys(unsupportedCodecs).length) {\n                const message = Object.keys(unsupportedCodecs).reduce((acc, supporter) => {\n                    if (acc) {\n                        acc += ', ';\n                    }\n                    acc += `${supporter} does not support codec(s): \"${unsupportedCodecs[supporter].join(',')}\"`;\n                    return acc;\n                }, '') + '.';\n                this.excludePlaylist({\n                    playlistToExclude: playlist,\n                    error: {\n                        internal: true,\n                        message\n                    },\n                    playlistExclusionDuration: Infinity\n                });\n                return;\n            } // check if codec switching is happening\n\n            if (this.sourceUpdater_.hasCreatedSourceBuffers() && !this.sourceUpdater_.canChangeType()) {\n                const switchMessages = [];\n                ['video', 'audio'].forEach(type => {\n                    const newCodec = (parseCodecs(this.sourceUpdater_.codecs[type] || '')[0] || {}).type;\n                    const oldCodec = (parseCodecs(codecs[type] || '')[0] || {}).type;\n                    if (newCodec && oldCodec && newCodec.toLowerCase() !== oldCodec.toLowerCase()) {\n                        switchMessages.push(`\"${this.sourceUpdater_.codecs[type]}\" -> \"${codecs[type]}\"`);\n                    }\n                });\n                if (switchMessages.length) {\n                    this.excludePlaylist({\n                        playlistToExclude: playlist,\n                        error: {\n                            message: `Codec switching not supported: ${switchMessages.join(', ')}.`,\n                            internal: true\n                        },\n                        playlistExclusionDuration: Infinity\n                    });\n                    return;\n                }\n            } // TODO: when using the muxer shouldn't we just return\n            // the codecs that the muxer outputs?\n\n            return codecs;\n        }\n        /**\n         * Create source buffers and exlude any incompatible renditions.\n         *\n         * @private\n         */\n\n        tryToCreateSourceBuffers_() {\n            // media source is not ready yet or sourceBuffers are already\n            // created.\n            if (this.mediaSource.readyState !== 'open' || this.sourceUpdater_.hasCreatedSourceBuffers()) {\n                return;\n            }\n            if (!this.areMediaTypesKnown_()) {\n                return;\n            }\n            const codecs = this.getCodecsOrExclude_(); // no codecs means that the playlist was excluded\n\n            if (!codecs) {\n                return;\n            }\n            this.sourceUpdater_.createSourceBuffers(codecs);\n            const codecString = [codecs.video, codecs.audio].filter(Boolean).join(',');\n            this.excludeIncompatibleVariants_(codecString);\n        }\n        /**\n         * Excludes playlists with codecs that are unsupported by the muxer and browser.\n         */\n\n        excludeUnsupportedVariants_() {\n            const playlists = this.main().playlists;\n            const ids = []; // TODO: why don't we have a property to loop through all\n            // playlist? Why did we ever mix indexes and keys?\n\n            Object.keys(playlists).forEach(key => {\n                const variant = playlists[key]; // check if we already processed this playlist.\n\n                if (ids.indexOf(variant.id) !== -1) {\n                    return;\n                }\n                ids.push(variant.id);\n                const codecs = codecsForPlaylist(this.main, variant);\n                const unsupported = [];\n                if (codecs.audio && !muxerSupportsCodec(codecs.audio) && !browserSupportsCodec(codecs.audio)) {\n                    unsupported.push(`audio codec ${codecs.audio}`);\n                }\n                if (codecs.video && !muxerSupportsCodec(codecs.video) && !browserSupportsCodec(codecs.video)) {\n                    unsupported.push(`video codec ${codecs.video}`);\n                }\n                if (codecs.text && codecs.text === 'stpp.ttml.im1t') {\n                    unsupported.push(`text codec ${codecs.text}`);\n                }\n                if (unsupported.length) {\n                    variant.excludeUntil = Infinity;\n                    this.logger_(`excluding ${variant.id} for unsupported: ${unsupported.join(', ')}`);\n                }\n            });\n        }\n        /**\n         * Exclude playlists that are known to be codec or\n         * stream-incompatible with the SourceBuffer configuration. For\n         * instance, Media Source Extensions would cause the video element to\n         * stall waiting for video data if you switched from a variant with\n         * video and audio to an audio-only one.\n         *\n         * @param {Object} media a media playlist compatible with the current\n         * set of SourceBuffers. Variants in the current main playlist that\n         * do not appear to have compatible codec or stream configurations\n         * will be excluded from the default playlist selection algorithm\n         * indefinitely.\n         * @private\n         */\n\n        excludeIncompatibleVariants_(codecString) {\n            const ids = [];\n            const playlists = this.main().playlists;\n            const codecs = unwrapCodecList(parseCodecs(codecString));\n            const codecCount_ = codecCount(codecs);\n            const videoDetails = codecs.video && parseCodecs(codecs.video)[0] || null;\n            const audioDetails = codecs.audio && parseCodecs(codecs.audio)[0] || null;\n            Object.keys(playlists).forEach(key => {\n                const variant = playlists[key]; // check if we already processed this playlist.\n                // or it if it is already excluded forever.\n\n                if (ids.indexOf(variant.id) !== -1 || variant.excludeUntil === Infinity) {\n                    return;\n                }\n                ids.push(variant.id);\n                const exclusionReasons = []; // get codecs from the playlist for this variant\n\n                const variantCodecs = codecsForPlaylist(this.mainPlaylistLoader_.main, variant);\n                const variantCodecCount = codecCount(variantCodecs); // if no codecs are listed, we cannot determine that this\n                // variant is incompatible. Wait for mux.js to probe\n\n                if (!variantCodecs.audio && !variantCodecs.video) {\n                    return;\n                } // TODO: we can support this by removing the\n                // old media source and creating a new one, but it will take some work.\n                // The number of streams cannot change\n\n                if (variantCodecCount !== codecCount_) {\n                    exclusionReasons.push(`codec count \"${variantCodecCount}\" !== \"${codecCount_}\"`);\n                } // only exclude playlists by codec change, if codecs cannot switch\n                // during playback.\n\n                if (!this.sourceUpdater_.canChangeType()) {\n                    const variantVideoDetails = variantCodecs.video && parseCodecs(variantCodecs.video)[0] || null;\n                    const variantAudioDetails = variantCodecs.audio && parseCodecs(variantCodecs.audio)[0] || null; // the video codec cannot change\n\n                    if (variantVideoDetails && videoDetails && variantVideoDetails.type.toLowerCase() !== videoDetails.type.toLowerCase()) {\n                        exclusionReasons.push(`video codec \"${variantVideoDetails.type}\" !== \"${videoDetails.type}\"`);\n                    } // the audio codec cannot change\n\n                    if (variantAudioDetails && audioDetails && variantAudioDetails.type.toLowerCase() !== audioDetails.type.toLowerCase()) {\n                        exclusionReasons.push(`audio codec \"${variantAudioDetails.type}\" !== \"${audioDetails.type}\"`);\n                    }\n                }\n                if (exclusionReasons.length) {\n                    variant.excludeUntil = Infinity;\n                    this.logger_(`excluding ${variant.id}: ${exclusionReasons.join(' && ')}`);\n                }\n            });\n        }\n        updateAdCues_(media) {\n            let offset = 0;\n            const seekable = this.seekable();\n            if (seekable.length) {\n                offset = seekable.start(0);\n            }\n            updateAdCues(media, this.cueTagsTrack_, offset);\n        }\n        /**\n         * Calculates the desired forward buffer length based on current time\n         *\n         * @return {number} Desired forward buffer length in seconds\n         */\n\n        goalBufferLength() {\n            const currentTime = this.tech_.currentTime();\n            const initial = Config.GOAL_BUFFER_LENGTH;\n            const rate = Config.GOAL_BUFFER_LENGTH_RATE;\n            const max = Math.max(initial, Config.MAX_GOAL_BUFFER_LENGTH);\n            return Math.min(initial + currentTime * rate, max);\n        }\n        /**\n         * Calculates the desired buffer low water line based on current time\n         *\n         * @return {number} Desired buffer low water line in seconds\n         */\n\n        bufferLowWaterLine() {\n            const currentTime = this.tech_.currentTime();\n            const initial = Config.BUFFER_LOW_WATER_LINE;\n            const rate = Config.BUFFER_LOW_WATER_LINE_RATE;\n            const max = Math.max(initial, Config.MAX_BUFFER_LOW_WATER_LINE);\n            const newMax = Math.max(initial, Config.EXPERIMENTAL_MAX_BUFFER_LOW_WATER_LINE);\n            return Math.min(initial + currentTime * rate, this.bufferBasedABR ? newMax : max);\n        }\n        bufferHighWaterLine() {\n            return Config.BUFFER_HIGH_WATER_LINE;\n        }\n    }\n\n    /**\n     * Returns a function that acts as the Enable/disable playlist function.\n     *\n     * @param {PlaylistLoader} loader - The main playlist loader\n     * @param {string} playlistID - id of the playlist\n     * @param {Function} changePlaylistFn - A function to be called after a\n     * playlist's enabled-state has been changed. Will NOT be called if a\n     * playlist's enabled-state is unchanged\n     * @param {boolean=} enable - Value to set the playlist enabled-state to\n     * or if undefined returns the current enabled-state for the playlist\n     * @return {Function} Function for setting/getting enabled\n     */\n\n    const enableFunction = (loader, playlistID, changePlaylistFn) => enable => {\n        const playlist = loader.main.playlists[playlistID];\n        const incompatible = isIncompatible(playlist);\n        const currentlyEnabled = isEnabled(playlist);\n        if (typeof enable === 'undefined') {\n            return currentlyEnabled;\n        }\n        if (enable) {\n            delete playlist.disabled;\n        } else {\n            playlist.disabled = true;\n        }\n        if (enable !== currentlyEnabled && !incompatible) {\n            // Ensure the outside world knows about our changes\n            changePlaylistFn();\n            if (enable) {\n                loader.trigger('renditionenabled');\n            } else {\n                loader.trigger('renditiondisabled');\n            }\n        }\n        return enable;\n    };\n    /**\n     * The representation object encapsulates the publicly visible information\n     * in a media playlist along with a setter/getter-type function (enabled)\n     * for changing the enabled-state of a particular playlist entry\n     *\n     * @class Representation\n     */\n\n    class Representation {\n        constructor(vhsHandler, playlist, id) {\n            const {\n                playlistController_: pc\n            } = vhsHandler;\n            const qualityChangeFunction = pc.fastQualityChange_.bind(pc); // some playlist attributes are optional\n\n            if (playlist.attributes) {\n                const resolution = playlist.attributes.RESOLUTION;\n                this.width = resolution && resolution.width;\n                this.height = resolution && resolution.height;\n                this.bandwidth = playlist.attributes.BANDWIDTH;\n                this.frameRate = playlist.attributes['FRAME-RATE'];\n            }\n            this.codecs = codecsForPlaylist(pc.main(), playlist);\n            this.playlist = playlist; // The id is simply the ordinality of the media playlist\n            // within the main playlist\n\n            this.id = id; // Partially-apply the enableFunction to create a playlist-\n            // specific variant\n\n            this.enabled = enableFunction(vhsHandler.playlists, playlist.id, qualityChangeFunction);\n        }\n    }\n    /**\n     * A mixin function that adds the `representations` api to an instance\n     * of the VhsHandler class\n     *\n     * @param {VhsHandler} vhsHandler - An instance of VhsHandler to add the\n     * representation API into\n     */\n\n    const renditionSelectionMixin = function (vhsHandler) {\n        // Add a single API-specific function to the VhsHandler instance\n        vhsHandler.representations = () => {\n            const main = vhsHandler.playlistController_.main();\n            const playlists = isAudioOnly(main) ? vhsHandler.playlistController_.getAudioTrackPlaylists_() : main.playlists;\n            if (!playlists) {\n                return [];\n            }\n            return playlists.filter(media => !isIncompatible(media)).map((e, i) => new Representation(vhsHandler, e, e.id));\n        };\n    };\n\n    /**\n     * @file playback-watcher.js\n     *\n     * Playback starts, and now my watch begins. It shall not end until my death. I shall\n     * take no wait, hold no uncleared timeouts, father no bad seeks. I shall wear no crowns\n     * and win no glory. I shall live and die at my post. I am the corrector of the underflow.\n     * I am the watcher of gaps. I am the shield that guards the realms of seekable. I pledge\n     * my life and honor to the Playback Watch, for this Player and all the Players to come.\n     */\n\n    const timerCancelEvents = ['seeking', 'seeked', 'pause', 'playing', 'error'];\n    /**\n     * @class PlaybackWatcher\n     */\n\n    class PlaybackWatcher {\n        /**\n         * Represents an PlaybackWatcher object.\n         *\n         * @class\n         * @param {Object} options an object that includes the tech and settings\n         */\n        constructor(options) {\n            this.playlistController_ = options.playlistController;\n            this.tech_ = options.tech;\n            this.seekable = options.seekable;\n            this.allowSeeksWithinUnsafeLiveWindow = options.allowSeeksWithinUnsafeLiveWindow;\n            this.liveRangeSafeTimeDelta = options.liveRangeSafeTimeDelta;\n            this.media = options.media;\n            this.consecutiveUpdates = 0;\n            this.lastRecordedTime = null;\n            this.checkCurrentTimeTimeout_ = null;\n            this.logger_ = logger('PlaybackWatcher');\n            this.logger_('initialize');\n            const playHandler = () => this.monitorCurrentTime_();\n            const canPlayHandler = () => this.monitorCurrentTime_();\n            const waitingHandler = () => this.techWaiting_();\n            const cancelTimerHandler = () => this.resetTimeUpdate_();\n            const pc = this.playlistController_;\n            const loaderTypes = ['main', 'subtitle', 'audio'];\n            const loaderChecks = {};\n            loaderTypes.forEach(type => {\n                loaderChecks[type] = {\n                    reset: () => this.resetSegmentDownloads_(type),\n                    updateend: () => this.checkSegmentDownloads_(type)\n                };\n                pc[`${type}SegmentLoader_`].on('appendsdone', loaderChecks[type].updateend); // If a rendition switch happens during a playback stall where the buffer\n                // isn't changing we want to reset. We cannot assume that the new rendition\n                // will also be stalled, until after new appends.\n\n                pc[`${type}SegmentLoader_`].on('playlistupdate', loaderChecks[type].reset); // Playback stalls should not be detected right after seeking.\n                // This prevents one segment playlists (single vtt or single segment content)\n                // from being detected as stalling. As the buffer will not change in those cases, since\n                // the buffer is the entire video duration.\n\n                this.tech_.on(['seeked', 'seeking'], loaderChecks[type].reset);\n            });\n            /**\n             * We check if a seek was into a gap through the following steps:\n             * 1. We get a seeking event and we do not get a seeked event. This means that\n             *    a seek was attempted but not completed.\n             * 2. We run `fixesBadSeeks_` on segment loader appends. This means that we already\n             *    removed everything from our buffer and appended a segment, and should be ready\n             *    to check for gaps.\n             */\n\n            const setSeekingHandlers = fn => {\n                ['main', 'audio'].forEach(type => {\n                    pc[`${type}SegmentLoader_`][fn]('appended', this.seekingAppendCheck_);\n                });\n            };\n            this.seekingAppendCheck_ = () => {\n                if (this.fixesBadSeeks_()) {\n                    this.consecutiveUpdates = 0;\n                    this.lastRecordedTime = this.tech_.currentTime();\n                    setSeekingHandlers('off');\n                }\n            };\n            this.clearSeekingAppendCheck_ = () => setSeekingHandlers('off');\n            this.watchForBadSeeking_ = () => {\n                this.clearSeekingAppendCheck_();\n                setSeekingHandlers('on');\n            };\n            this.tech_.on('seeked', this.clearSeekingAppendCheck_);\n            this.tech_.on('seeking', this.watchForBadSeeking_);\n            this.tech_.on('waiting', waitingHandler);\n            this.tech_.on(timerCancelEvents, cancelTimerHandler);\n            this.tech_.on('canplay', canPlayHandler);\n            /*\n        An edge case exists that results in gaps not being skipped when they exist at the beginning of a stream. This case\n        is surfaced in one of two ways:\n         1)  The `waiting` event is fired before the player has buffered content, making it impossible\n            to find or skip the gap. The `waiting` event is followed by a `play` event. On first play\n            we can check if playback is stalled due to a gap, and skip the gap if necessary.\n        2)  A source with a gap at the beginning of the stream is loaded programatically while the player\n            is in a playing state. To catch this case, it's important that our one-time play listener is setup\n            even if the player is in a playing state\n      */\n\n            this.tech_.one('play', playHandler); // Define the dispose function to clean up our events\n\n            this.dispose = () => {\n                this.clearSeekingAppendCheck_();\n                this.logger_('dispose');\n                this.tech_.off('waiting', waitingHandler);\n                this.tech_.off(timerCancelEvents, cancelTimerHandler);\n                this.tech_.off('canplay', canPlayHandler);\n                this.tech_.off('play', playHandler);\n                this.tech_.off('seeking', this.watchForBadSeeking_);\n                this.tech_.off('seeked', this.clearSeekingAppendCheck_);\n                loaderTypes.forEach(type => {\n                    pc[`${type}SegmentLoader_`].off('appendsdone', loaderChecks[type].updateend);\n                    pc[`${type}SegmentLoader_`].off('playlistupdate', loaderChecks[type].reset);\n                    this.tech_.off(['seeked', 'seeking'], loaderChecks[type].reset);\n                });\n                if (this.checkCurrentTimeTimeout_) {\n                    window.clearTimeout(this.checkCurrentTimeTimeout_);\n                }\n                this.resetTimeUpdate_();\n            };\n        }\n        /**\n         * Periodically check current time to see if playback stopped\n         *\n         * @private\n         */\n\n        monitorCurrentTime_() {\n            this.checkCurrentTime_();\n            if (this.checkCurrentTimeTimeout_) {\n                window.clearTimeout(this.checkCurrentTimeTimeout_);\n            } // 42 = 24 fps // 250 is what Webkit uses // FF uses 15\n\n            this.checkCurrentTimeTimeout_ = window.setTimeout(this.monitorCurrentTime_.bind(this), 250);\n        }\n        /**\n         * Reset stalled download stats for a specific type of loader\n         *\n         * @param {string} type\n         *        The segment loader type to check.\n         *\n         * @listens SegmentLoader#playlistupdate\n         * @listens Tech#seeking\n         * @listens Tech#seeked\n         */\n\n        resetSegmentDownloads_(type) {\n            const loader = this.playlistController_[`${type}SegmentLoader_`];\n            if (this[`${type}StalledDownloads_`] > 0) {\n                this.logger_(`resetting possible stalled download count for ${type} loader`);\n            }\n            this[`${type}StalledDownloads_`] = 0;\n            this[`${type}Buffered_`] = loader.buffered_();\n        }\n        /**\n         * Checks on every segment `appendsdone` to see\n         * if segment appends are making progress. If they are not\n         * and we are still downloading bytes. We exclude the playlist.\n         *\n         * @param {string} type\n         *        The segment loader type to check.\n         *\n         * @listens SegmentLoader#appendsdone\n         */\n\n        checkSegmentDownloads_(type) {\n            const pc = this.playlistController_;\n            const loader = pc[`${type}SegmentLoader_`];\n            const buffered = loader.buffered_();\n            const isBufferedDifferent = isRangeDifferent(this[`${type}Buffered_`], buffered);\n            this[`${type}Buffered_`] = buffered; // if another watcher is going to fix the issue or\n            // the buffered value for this loader changed\n            // appends are working\n\n            if (isBufferedDifferent) {\n                this.resetSegmentDownloads_(type);\n                return;\n            }\n            this[`${type}StalledDownloads_`]++;\n            this.logger_(`found #${this[`${type}StalledDownloads_`]} ${type} appends that did not increase buffer (possible stalled download)`, {\n                playlistId: loader.playlist_ && loader.playlist_.id,\n                buffered: timeRangesToArray(buffered)\n            }); // after 10 possibly stalled appends with no reset, exclude\n\n            if (this[`${type}StalledDownloads_`] < 10) {\n                return;\n            }\n            this.logger_(`${type} loader stalled download exclusion`);\n            this.resetSegmentDownloads_(type);\n            this.tech_.trigger({\n                type: 'usage',\n                name: `vhs-${type}-download-exclusion`\n            });\n            if (type === 'subtitle') {\n                return;\n            } // TODO: should we exclude audio tracks rather than main tracks\n            // when type is audio?\n\n            pc.excludePlaylist({\n                error: {\n                    message: `Excessive ${type} segment downloading detected.`\n                },\n                playlistExclusionDuration: Infinity\n            });\n        }\n        /**\n         * The purpose of this function is to emulate the \"waiting\" event on\n         * browsers that do not emit it when they are waiting for more\n         * data to continue playback\n         *\n         * @private\n         */\n\n        checkCurrentTime_() {\n            if (this.tech_.paused() || this.tech_.seeking()) {\n                return;\n            }\n            const currentTime = this.tech_.currentTime();\n            const buffered = this.tech_.buffered();\n            if (this.lastRecordedTime === currentTime && (!buffered.length || currentTime + SAFE_TIME_DELTA >= buffered.end(buffered.length - 1))) {\n                // If current time is at the end of the final buffered region, then any playback\n                // stall is most likely caused by buffering in a low bandwidth environment. The tech\n                // should fire a `waiting` event in this scenario, but due to browser and tech\n                // inconsistencies. Calling `techWaiting_` here allows us to simulate\n                // responding to a native `waiting` event when the tech fails to emit one.\n                return this.techWaiting_();\n            }\n            if (this.consecutiveUpdates >= 5 && currentTime === this.lastRecordedTime) {\n                this.consecutiveUpdates++;\n                this.waiting_();\n            } else if (currentTime === this.lastRecordedTime) {\n                this.consecutiveUpdates++;\n            } else {\n                this.consecutiveUpdates = 0;\n                this.lastRecordedTime = currentTime;\n            }\n        }\n        /**\n         * Resets the 'timeupdate' mechanism designed to detect that we are stalled\n         *\n         * @private\n         */\n\n        resetTimeUpdate_() {\n            this.consecutiveUpdates = 0;\n        }\n        /**\n         * Fixes situations where there's a bad seek\n         *\n         * @return {boolean} whether an action was taken to fix the seek\n         * @private\n         */\n\n        fixesBadSeeks_() {\n            const seeking = this.tech_.seeking();\n            if (!seeking) {\n                return false;\n            } // TODO: It's possible that these seekable checks should be moved out of this function\n            // and into a function that runs on seekablechange. It's also possible that we only need\n            // afterSeekableWindow as the buffered check at the bottom is good enough to handle before\n            // seekable range.\n\n            const seekable = this.seekable();\n            const currentTime = this.tech_.currentTime();\n            const isAfterSeekableRange = this.afterSeekableWindow_(seekable, currentTime, this.media(), this.allowSeeksWithinUnsafeLiveWindow);\n            let seekTo;\n            if (isAfterSeekableRange) {\n                const seekableEnd = seekable.end(seekable.length - 1); // sync to live point (if VOD, our seekable was updated and we're simply adjusting)\n\n                seekTo = seekableEnd;\n            }\n            if (this.beforeSeekableWindow_(seekable, currentTime)) {\n                const seekableStart = seekable.start(0); // sync to the beginning of the live window\n                // provide a buffer of .1 seconds to handle rounding/imprecise numbers\n\n                seekTo = seekableStart + (\n                    // if the playlist is too short and the seekable range is an exact time (can\n                    // happen in live with a 3 segment playlist), then don't use a time delta\n                    seekableStart === seekable.end(0) ? 0 : SAFE_TIME_DELTA);\n            }\n            if (typeof seekTo !== 'undefined') {\n                this.logger_(`Trying to seek outside of seekable at time ${currentTime} with ` + `seekable range ${printableRange(seekable)}. Seeking to ` + `${seekTo}.`);\n                this.tech_.setCurrentTime(seekTo);\n                return true;\n            }\n            const sourceUpdater = this.playlistController_.sourceUpdater_;\n            const buffered = this.tech_.buffered();\n            const audioBuffered = sourceUpdater.audioBuffer ? sourceUpdater.audioBuffered() : null;\n            const videoBuffered = sourceUpdater.videoBuffer ? sourceUpdater.videoBuffered() : null;\n            const media = this.media(); // verify that at least two segment durations or one part duration have been\n            // appended before checking for a gap.\n\n            const minAppendedDuration = media.partTargetDuration ? media.partTargetDuration : (media.targetDuration - TIME_FUDGE_FACTOR) * 2; // verify that at least two segment durations have been\n            // appended before checking for a gap.\n\n            const bufferedToCheck = [audioBuffered, videoBuffered];\n            for (let i = 0; i < bufferedToCheck.length; i++) {\n                // skip null buffered\n                if (!bufferedToCheck[i]) {\n                    continue;\n                }\n                const timeAhead = timeAheadOf(bufferedToCheck[i], currentTime); // if we are less than two video/audio segment durations or one part\n                // duration behind we haven't appended enough to call this a bad seek.\n\n                if (timeAhead < minAppendedDuration) {\n                    return false;\n                }\n            }\n            const nextRange = findNextRange(buffered, currentTime); // we have appended enough content, but we don't have anything buffered\n            // to seek over the gap\n\n            if (nextRange.length === 0) {\n                return false;\n            }\n            seekTo = nextRange.start(0) + SAFE_TIME_DELTA;\n            this.logger_(`Buffered region starts (${nextRange.start(0)}) ` + ` just beyond seek point (${currentTime}). Seeking to ${seekTo}.`);\n            this.tech_.setCurrentTime(seekTo);\n            return true;\n        }\n        /**\n         * Handler for situations when we determine the player is waiting.\n         *\n         * @private\n         */\n\n        waiting_() {\n            if (this.techWaiting_()) {\n                return;\n            } // All tech waiting checks failed. Use last resort correction\n\n            const currentTime = this.tech_.currentTime();\n            const buffered = this.tech_.buffered();\n            const currentRange = findRange(buffered, currentTime); // Sometimes the player can stall for unknown reasons within a contiguous buffered\n            // region with no indication that anything is amiss (seen in Firefox). Seeking to\n            // currentTime is usually enough to kickstart the player. This checks that the player\n            // is currently within a buffered region before attempting a corrective seek.\n            // Chrome does not appear to continue `timeupdate` events after a `waiting` event\n            // until there is ~ 3 seconds of forward buffer available. PlaybackWatcher should also\n            // make sure there is ~3 seconds of forward buffer before taking any corrective action\n            // to avoid triggering an `unknownwaiting` event when the network is slow.\n\n            if (currentRange.length && currentTime + 3 <= currentRange.end(0)) {\n                this.resetTimeUpdate_();\n                this.tech_.setCurrentTime(currentTime);\n                this.logger_(`Stopped at ${currentTime} while inside a buffered region ` + `[${currentRange.start(0)} -> ${currentRange.end(0)}]. Attempting to resume ` + 'playback by seeking to the current time.'); // unknown waiting corrections may be useful for monitoring QoS\n\n                this.tech_.trigger({\n                    type: 'usage',\n                    name: 'vhs-unknown-waiting'\n                });\n                return;\n            }\n        }\n        /**\n         * Handler for situations when the tech fires a `waiting` event\n         *\n         * @return {boolean}\n         *         True if an action (or none) was needed to correct the waiting. False if no\n         *         checks passed\n         * @private\n         */\n\n        techWaiting_() {\n            const seekable = this.seekable();\n            const currentTime = this.tech_.currentTime();\n            if (this.tech_.seeking()) {\n                // Tech is seeking or already waiting on another action, no action needed\n                return true;\n            }\n            if (this.beforeSeekableWindow_(seekable, currentTime)) {\n                const livePoint = seekable.end(seekable.length - 1);\n                this.logger_(`Fell out of live window at time ${currentTime}. Seeking to ` + `live point (seekable end) ${livePoint}`);\n                this.resetTimeUpdate_();\n                this.tech_.setCurrentTime(livePoint); // live window resyncs may be useful for monitoring QoS\n\n                this.tech_.trigger({\n                    type: 'usage',\n                    name: 'vhs-live-resync'\n                });\n                return true;\n            }\n            const sourceUpdater = this.tech_.vhs.playlistController_.sourceUpdater_;\n            const buffered = this.tech_.buffered();\n            const videoUnderflow = this.videoUnderflow_({\n                audioBuffered: sourceUpdater.audioBuffered(),\n                videoBuffered: sourceUpdater.videoBuffered(),\n                currentTime\n            });\n            if (videoUnderflow) {\n                // Even though the video underflowed and was stuck in a gap, the audio overplayed\n                // the gap, leading currentTime into a buffered range. Seeking to currentTime\n                // allows the video to catch up to the audio position without losing any audio\n                // (only suffering ~3 seconds of frozen video and a pause in audio playback).\n                this.resetTimeUpdate_();\n                this.tech_.setCurrentTime(currentTime); // video underflow may be useful for monitoring QoS\n\n                this.tech_.trigger({\n                    type: 'usage',\n                    name: 'vhs-video-underflow'\n                });\n                return true;\n            }\n            const nextRange = findNextRange(buffered, currentTime); // check for gap\n\n            if (nextRange.length > 0) {\n                this.logger_(`Stopped at ${currentTime} and seeking to ${nextRange.start(0)}`);\n                this.resetTimeUpdate_();\n                this.skipTheGap_(currentTime);\n                return true;\n            } // All checks failed. Returning false to indicate failure to correct waiting\n\n            return false;\n        }\n        afterSeekableWindow_(seekable, currentTime, playlist, allowSeeksWithinUnsafeLiveWindow = false) {\n            if (!seekable.length) {\n                // we can't make a solid case if there's no seekable, default to false\n                return false;\n            }\n            let allowedEnd = seekable.end(seekable.length - 1) + SAFE_TIME_DELTA;\n            const isLive = !playlist.endList;\n            if (isLive && allowSeeksWithinUnsafeLiveWindow) {\n                allowedEnd = seekable.end(seekable.length - 1) + playlist.targetDuration * 3;\n            }\n            if (currentTime > allowedEnd) {\n                return true;\n            }\n            return false;\n        }\n        beforeSeekableWindow_(seekable, currentTime) {\n            if (seekable.length &&\n                // can't fall before 0 and 0 seekable start identifies VOD stream\n                seekable.start(0) > 0 && currentTime < seekable.start(0) - this.liveRangeSafeTimeDelta) {\n                return true;\n            }\n            return false;\n        }\n        videoUnderflow_({\n                            videoBuffered,\n                            audioBuffered,\n                            currentTime\n                        }) {\n            // audio only content will not have video underflow :)\n            if (!videoBuffered) {\n                return;\n            }\n            let gap; // find a gap in demuxed content.\n\n            if (videoBuffered.length && audioBuffered.length) {\n                // in Chrome audio will continue to play for ~3s when we run out of video\n                // so we have to check that the video buffer did have some buffer in the\n                // past.\n                const lastVideoRange = findRange(videoBuffered, currentTime - 3);\n                const videoRange = findRange(videoBuffered, currentTime);\n                const audioRange = findRange(audioBuffered, currentTime);\n                if (audioRange.length && !videoRange.length && lastVideoRange.length) {\n                    gap = {\n                        start: lastVideoRange.end(0),\n                        end: audioRange.end(0)\n                    };\n                } // find a gap in muxed content.\n            } else {\n                const nextRange = findNextRange(videoBuffered, currentTime); // Even if there is no available next range, there is still a possibility we are\n                // stuck in a gap due to video underflow.\n\n                if (!nextRange.length) {\n                    gap = this.gapFromVideoUnderflow_(videoBuffered, currentTime);\n                }\n            }\n            if (gap) {\n                this.logger_(`Encountered a gap in video from ${gap.start} to ${gap.end}. ` + `Seeking to current time ${currentTime}`);\n                return true;\n            }\n            return false;\n        }\n        /**\n         * Timer callback. If playback still has not proceeded, then we seek\n         * to the start of the next buffered region.\n         *\n         * @private\n         */\n\n        skipTheGap_(scheduledCurrentTime) {\n            const buffered = this.tech_.buffered();\n            const currentTime = this.tech_.currentTime();\n            const nextRange = findNextRange(buffered, currentTime);\n            this.resetTimeUpdate_();\n            if (nextRange.length === 0 || currentTime !== scheduledCurrentTime) {\n                return;\n            }\n            this.logger_('skipTheGap_:', 'currentTime:', currentTime, 'scheduled currentTime:', scheduledCurrentTime, 'nextRange start:', nextRange.start(0)); // only seek if we still have not played\n\n            this.tech_.setCurrentTime(nextRange.start(0) + TIME_FUDGE_FACTOR);\n            this.tech_.trigger({\n                type: 'usage',\n                name: 'vhs-gap-skip'\n            });\n        }\n        gapFromVideoUnderflow_(buffered, currentTime) {\n            // At least in Chrome, if there is a gap in the video buffer, the audio will continue\n            // playing for ~3 seconds after the video gap starts. This is done to account for\n            // video buffer underflow/underrun (note that this is not done when there is audio\n            // buffer underflow/underrun -- in that case the video will stop as soon as it\n            // encounters the gap, as audio stalls are more noticeable/jarring to a user than\n            // video stalls). The player's time will reflect the playthrough of audio, so the\n            // time will appear as if we are in a buffered region, even if we are stuck in a\n            // \"gap.\"\n            //\n            // Example:\n            // video buffer:   0 => 10.1, 10.2 => 20\n            // audio buffer:   0 => 20\n            // overall buffer: 0 => 10.1, 10.2 => 20\n            // current time: 13\n            //\n            // Chrome's video froze at 10 seconds, where the video buffer encountered the gap,\n            // however, the audio continued playing until it reached ~3 seconds past the gap\n            // (13 seconds), at which point it stops as well. Since current time is past the\n            // gap, findNextRange will return no ranges.\n            //\n            // To check for this issue, we see if there is a gap that starts somewhere within\n            // a 3 second range (3 seconds +/- 1 second) back from our current time.\n            const gaps = findGaps(buffered);\n            for (let i = 0; i < gaps.length; i++) {\n                const start = gaps.start(i);\n                const end = gaps.end(i); // gap is starts no more than 4 seconds back\n\n                if (currentTime - start < 4 && currentTime - start > 2) {\n                    return {\n                        start,\n                        end\n                    };\n                }\n            }\n            return null;\n        }\n    }\n    const defaultOptions = {\n        errorInterval: 30,\n        getSource(next) {\n            const tech = this.tech({\n                IWillNotUseThisInPlugins: true\n            });\n            const sourceObj = tech.currentSource_ || this.currentSource();\n            return next(sourceObj);\n        }\n    };\n    /**\n     * Main entry point for the plugin\n     *\n     * @param {Player} player a reference to a videojs Player instance\n     * @param {Object} [options] an object with plugin options\n     * @private\n     */\n\n    const initPlugin = function (player, options) {\n        let lastCalled = 0;\n        let seekTo = 0;\n        const localOptions = merge(defaultOptions, options);\n        player.ready(() => {\n            player.trigger({\n                type: 'usage',\n                name: 'vhs-error-reload-initialized'\n            });\n        });\n        /**\n         * Player modifications to perform that must wait until `loadedmetadata`\n         * has been triggered\n         *\n         * @private\n         */\n\n        const loadedMetadataHandler = function () {\n            if (seekTo) {\n                player.currentTime(seekTo);\n            }\n        };\n        /**\n         * Set the source on the player element, play, and seek if necessary\n         *\n         * @param {Object} sourceObj An object specifying the source url and mime-type to play\n         * @private\n         */\n\n        const setSource = function (sourceObj) {\n            if (sourceObj === null || sourceObj === undefined) {\n                return;\n            }\n            seekTo = player.duration() !== Infinity && player.currentTime() || 0;\n            player.one('loadedmetadata', loadedMetadataHandler);\n            player.src(sourceObj);\n            player.trigger({\n                type: 'usage',\n                name: 'vhs-error-reload'\n            });\n            player.play();\n        };\n        /**\n         * Attempt to get a source from either the built-in getSource function\n         * or a custom function provided via the options\n         *\n         * @private\n         */\n\n        const errorHandler = function () {\n            // Do not attempt to reload the source if a source-reload occurred before\n            // 'errorInterval' time has elapsed since the last source-reload\n            if (Date.now() - lastCalled < localOptions.errorInterval * 1000) {\n                player.trigger({\n                    type: 'usage',\n                    name: 'vhs-error-reload-canceled'\n                });\n                return;\n            }\n            if (!localOptions.getSource || typeof localOptions.getSource !== 'function') {\n                videojs.log.error('ERROR: reloadSourceOnError - The option getSource must be a function!');\n                return;\n            }\n            lastCalled = Date.now();\n            return localOptions.getSource.call(player, setSource);\n        };\n        /**\n         * Unbind any event handlers that were bound by the plugin\n         *\n         * @private\n         */\n\n        const cleanupEvents = function () {\n            player.off('loadedmetadata', loadedMetadataHandler);\n            player.off('error', errorHandler);\n            player.off('dispose', cleanupEvents);\n        };\n        /**\n         * Cleanup before re-initializing the plugin\n         *\n         * @param {Object} [newOptions] an object with plugin options\n         * @private\n         */\n\n        const reinitPlugin = function (newOptions) {\n            cleanupEvents();\n            initPlugin(player, newOptions);\n        };\n        player.on('error', errorHandler);\n        player.on('dispose', cleanupEvents); // Overwrite the plugin function so that we can correctly cleanup before\n        // initializing the plugin\n\n        player.reloadSourceOnError = reinitPlugin;\n    };\n    /**\n     * Reload the source when an error is detected as long as there\n     * wasn't an error previously within the last 30 seconds\n     *\n     * @param {Object} [options] an object with plugin options\n     */\n\n    const reloadSourceOnError = function (options) {\n        initPlugin(this, options);\n    };\n    var version$4 = \"3.0.2\";\n    var version$3 = \"6.3.0\";\n    var version$2 = \"1.0.1\";\n    var version$1 = \"6.0.0\";\n    var version = \"4.0.1\";\n\n    /**\n     * @file videojs-http-streaming.js\n     *\n     * The main file for the VHS project.\n     * License: https://github.com/videojs/videojs-http-streaming/blob/main/LICENSE\n     */\n    const Vhs = {\n        PlaylistLoader,\n        Playlist,\n        utils,\n        STANDARD_PLAYLIST_SELECTOR: lastBandwidthSelector,\n        INITIAL_PLAYLIST_SELECTOR: lowestBitrateCompatibleVariantSelector,\n        lastBandwidthSelector,\n        movingAverageBandwidthSelector,\n        comparePlaylistBandwidth,\n        comparePlaylistResolution,\n        xhr: xhrFactory()\n    }; // Define getter/setters for config properties\n\n    Object.keys(Config).forEach(prop => {\n        Object.defineProperty(Vhs, prop, {\n            get() {\n                videojs.log.warn(`using Vhs.${prop} is UNSAFE be sure you know what you are doing`);\n                return Config[prop];\n            },\n            set(value) {\n                videojs.log.warn(`using Vhs.${prop} is UNSAFE be sure you know what you are doing`);\n                if (typeof value !== 'number' || value < 0) {\n                    videojs.log.warn(`value of Vhs.${prop} must be greater than or equal to 0`);\n                    return;\n                }\n                Config[prop] = value;\n            }\n        });\n    });\n    const LOCAL_STORAGE_KEY = 'videojs-vhs';\n    /**\n     * Updates the selectedIndex of the QualityLevelList when a mediachange happens in vhs.\n     *\n     * @param {QualityLevelList} qualityLevels The QualityLevelList to update.\n     * @param {PlaylistLoader} playlistLoader PlaylistLoader containing the new media info.\n     * @function handleVhsMediaChange\n     */\n\n    const handleVhsMediaChange = function (qualityLevels, playlistLoader) {\n        const newPlaylist = playlistLoader.media();\n        let selectedIndex = -1;\n        for (let i = 0; i < qualityLevels.length; i++) {\n            if (qualityLevels[i].id === newPlaylist.id) {\n                selectedIndex = i;\n                break;\n            }\n        }\n        qualityLevels.selectedIndex_ = selectedIndex;\n        qualityLevels.trigger({\n            selectedIndex,\n            type: 'change'\n        });\n    };\n    /**\n     * Adds quality levels to list once playlist metadata is available\n     *\n     * @param {QualityLevelList} qualityLevels The QualityLevelList to attach events to.\n     * @param {Object} vhs Vhs object to listen to for media events.\n     * @function handleVhsLoadedMetadata\n     */\n\n    const handleVhsLoadedMetadata = function (qualityLevels, vhs) {\n        vhs.representations().forEach(rep => {\n            qualityLevels.addQualityLevel(rep);\n        });\n        handleVhsMediaChange(qualityLevels, vhs.playlists);\n    }; // VHS is a source handler, not a tech. Make sure attempts to use it\n    // as one do not cause exceptions.\n\n    Vhs.canPlaySource = function () {\n        return videojs.log.warn('VHS is no longer a tech. Please remove it from ' + 'your player\\'s techOrder.');\n    };\n    const emeKeySystems = (keySystemOptions, mainPlaylist, audioPlaylist) => {\n        if (!keySystemOptions) {\n            return keySystemOptions;\n        }\n        let codecs = {};\n        if (mainPlaylist && mainPlaylist.attributes && mainPlaylist.attributes.CODECS) {\n            codecs = unwrapCodecList(parseCodecs(mainPlaylist.attributes.CODECS));\n        }\n        if (audioPlaylist && audioPlaylist.attributes && audioPlaylist.attributes.CODECS) {\n            codecs.audio = audioPlaylist.attributes.CODECS;\n        }\n        const videoContentType = getMimeForCodec(codecs.video);\n        const audioContentType = getMimeForCodec(codecs.audio); // upsert the content types based on the selected playlist\n\n        const keySystemContentTypes = {};\n        for (const keySystem in keySystemOptions) {\n            keySystemContentTypes[keySystem] = {};\n            if (audioContentType) {\n                keySystemContentTypes[keySystem].audioContentType = audioContentType;\n            }\n            if (videoContentType) {\n                keySystemContentTypes[keySystem].videoContentType = videoContentType;\n            } // Default to using the video playlist's PSSH even though they may be different, as\n            // videojs-contrib-eme will only accept one in the options.\n            //\n            // This shouldn't be an issue for most cases as early intialization will handle all\n            // unique PSSH values, and if they aren't, then encrypted events should have the\n            // specific information needed for the unique license.\n\n            if (mainPlaylist.contentProtection && mainPlaylist.contentProtection[keySystem] && mainPlaylist.contentProtection[keySystem].pssh) {\n                keySystemContentTypes[keySystem].pssh = mainPlaylist.contentProtection[keySystem].pssh;\n            } // videojs-contrib-eme accepts the option of specifying: 'com.some.cdm': 'url'\n            // so we need to prevent overwriting the URL entirely\n\n            if (typeof keySystemOptions[keySystem] === 'string') {\n                keySystemContentTypes[keySystem].url = keySystemOptions[keySystem];\n            }\n        }\n        return merge(keySystemOptions, keySystemContentTypes);\n    };\n    /**\n     * @typedef {Object} KeySystems\n     *\n     * keySystems configuration for https://github.com/videojs/videojs-contrib-eme\n     * Note: not all options are listed here.\n     *\n     * @property {Uint8Array} [pssh]\n     *           Protection System Specific Header\n     */\n\n    /**\n     * Goes through all the playlists and collects an array of KeySystems options objects\n     * containing each playlist's keySystems and their pssh values, if available.\n     *\n     * @param {Object[]} playlists\n     *        The playlists to look through\n     * @param {string[]} keySystems\n     *        The keySystems to collect pssh values for\n     *\n     * @return {KeySystems[]}\n     *         An array of KeySystems objects containing available key systems and their\n     *         pssh values\n     */\n\n    const getAllPsshKeySystemsOptions = (playlists, keySystems) => {\n        return playlists.reduce((keySystemsArr, playlist) => {\n            if (!playlist.contentProtection) {\n                return keySystemsArr;\n            }\n            const keySystemsOptions = keySystems.reduce((keySystemsObj, keySystem) => {\n                const keySystemOptions = playlist.contentProtection[keySystem];\n                if (keySystemOptions && keySystemOptions.pssh) {\n                    keySystemsObj[keySystem] = {\n                        pssh: keySystemOptions.pssh\n                    };\n                }\n                return keySystemsObj;\n            }, {});\n            if (Object.keys(keySystemsOptions).length) {\n                keySystemsArr.push(keySystemsOptions);\n            }\n            return keySystemsArr;\n        }, []);\n    };\n    /**\n     * Returns a promise that waits for the\n     * [eme plugin](https://github.com/videojs/videojs-contrib-eme) to create a key session.\n     *\n     * Works around https://bugs.chromium.org/p/chromium/issues/detail?id=895449 in non-IE11\n     * browsers.\n     *\n     * As per the above ticket, this is particularly important for Chrome, where, if\n     * unencrypted content is appended before encrypted content and the key session has not\n     * been created, a MEDIA_ERR_DECODE will be thrown once the encrypted content is reached\n     * during playback.\n     *\n     * @param {Object} player\n     *        The player instance\n     * @param {Object[]} sourceKeySystems\n     *        The key systems options from the player source\n     * @param {Object} [audioMedia]\n     *        The active audio media playlist (optional)\n     * @param {Object[]} mainPlaylists\n     *        The playlists found on the main playlist object\n     *\n     * @return {Object}\n     *         Promise that resolves when the key session has been created\n     */\n\n    const waitForKeySessionCreation = ({\n                                           player,\n                                           sourceKeySystems,\n                                           audioMedia,\n                                           mainPlaylists\n                                       }) => {\n        if (!player.eme.initializeMediaKeys) {\n            return Promise.resolve();\n        } // TODO should all audio PSSH values be initialized for DRM?\n        //\n        // All unique video rendition pssh values are initialized for DRM, but here only\n        // the initial audio playlist license is initialized. In theory, an encrypted\n        // event should be fired if the user switches to an alternative audio playlist\n        // where a license is required, but this case hasn't yet been tested. In addition, there\n        // may be many alternate audio playlists unlikely to be used (e.g., multiple different\n        // languages).\n\n        const playlists = audioMedia ? mainPlaylists.concat([audioMedia]) : mainPlaylists;\n        const keySystemsOptionsArr = getAllPsshKeySystemsOptions(playlists, Object.keys(sourceKeySystems));\n        const initializationFinishedPromises = [];\n        const keySessionCreatedPromises = []; // Since PSSH values are interpreted as initData, EME will dedupe any duplicates. The\n        // only place where it should not be deduped is for ms-prefixed APIs, but the early\n        // return for IE11 above, and the existence of modern EME APIs in addition to\n        // ms-prefixed APIs on Edge should prevent this from being a concern.\n        // initializeMediaKeys also won't use the webkit-prefixed APIs.\n\n        keySystemsOptionsArr.forEach(keySystemsOptions => {\n            keySessionCreatedPromises.push(new Promise((resolve, reject) => {\n                player.tech_.one('keysessioncreated', resolve);\n            }));\n            initializationFinishedPromises.push(new Promise((resolve, reject) => {\n                player.eme.initializeMediaKeys({\n                    keySystems: keySystemsOptions\n                }, err => {\n                    if (err) {\n                        reject(err);\n                        return;\n                    }\n                    resolve();\n                });\n            }));\n        }); // The reasons Promise.race is chosen over Promise.any:\n        //\n        // * Promise.any is only available in Safari 14+.\n        // * None of these promises are expected to reject. If they do reject, it might be\n        //   better here for the race to surface the rejection, rather than mask it by using\n        //   Promise.any.\n\n        return Promise.race([\n            // If a session was previously created, these will all finish resolving without\n            // creating a new session, otherwise it will take until the end of all license\n            // requests, which is why the key session check is used (to make setup much faster).\n            Promise.all(initializationFinishedPromises),\n            // Once a single session is created, the browser knows DRM will be used.\n            Promise.race(keySessionCreatedPromises)]);\n    };\n    /**\n     * If the [eme](https://github.com/videojs/videojs-contrib-eme) plugin is available, and\n     * there are keySystems on the source, sets up source options to prepare the source for\n     * eme.\n     *\n     * @param {Object} player\n     *        The player instance\n     * @param {Object[]} sourceKeySystems\n     *        The key systems options from the player source\n     * @param {Object} media\n     *        The active media playlist\n     * @param {Object} [audioMedia]\n     *        The active audio media playlist (optional)\n     *\n     * @return {boolean}\n     *         Whether or not options were configured and EME is available\n     */\n\n    const setupEmeOptions = ({\n                                 player,\n                                 sourceKeySystems,\n                                 media,\n                                 audioMedia\n                             }) => {\n        const sourceOptions = emeKeySystems(sourceKeySystems, media, audioMedia);\n        if (!sourceOptions) {\n            return false;\n        }\n        player.currentSource().keySystems = sourceOptions; // eme handles the rest of the setup, so if it is missing\n        // do nothing.\n\n        if (sourceOptions && !player.eme) {\n            videojs.log.warn('DRM encrypted source cannot be decrypted without a DRM plugin');\n            return false;\n        }\n        return true;\n    };\n    const getVhsLocalStorage = () => {\n        if (!window.localStorage) {\n            return null;\n        }\n        const storedObject = window.localStorage.getItem(LOCAL_STORAGE_KEY);\n        if (!storedObject) {\n            return null;\n        }\n        try {\n            return JSON.parse(storedObject);\n        } catch (e) {\n            // someone may have tampered with the value\n            return null;\n        }\n    };\n    const updateVhsLocalStorage = options => {\n        if (!window.localStorage) {\n            return false;\n        }\n        let objectToStore = getVhsLocalStorage();\n        objectToStore = objectToStore ? merge(objectToStore, options) : options;\n        try {\n            window.localStorage.setItem(LOCAL_STORAGE_KEY, JSON.stringify(objectToStore));\n        } catch (e) {\n            // Throws if storage is full (e.g., always on iOS 5+ Safari private mode, where\n            // storage is set to 0).\n            // https://developer.mozilla.org/en-US/docs/Web/API/Storage/setItem#Exceptions\n            // No need to perform any operation.\n            return false;\n        }\n        return objectToStore;\n    };\n    /**\n     * Parses VHS-supported media types from data URIs. See\n     * https://developer.mozilla.org/en-US/docs/Web/HTTP/Basics_of_HTTP/Data_URIs\n     * for information on data URIs.\n     *\n     * @param {string} dataUri\n     *        The data URI\n     *\n     * @return {string|Object}\n     *         The parsed object/string, or the original string if no supported media type\n     *         was found\n     */\n\n    const expandDataUri = dataUri => {\n        if (dataUri.toLowerCase().indexOf('data:application/vnd.videojs.vhs+json,') === 0) {\n            return JSON.parse(dataUri.substring(dataUri.indexOf(',') + 1));\n        } // no known case for this data URI, return the string as-is\n\n        return dataUri;\n    };\n    /**\n     * Whether the browser has built-in HLS support.\n     */\n\n    Vhs.supportsNativeHls = function () {\n        if (!document || !document.createElement) {\n            return false;\n        }\n        const video = document.createElement('video'); // native HLS is definitely not supported if HTML5 video isn't\n\n        if (!videojs.getTech('Html5').isSupported()) {\n            return false;\n        } // HLS manifests can go by many mime-types\n\n        const canPlay = [\n            // Apple santioned\n            'application/vnd.apple.mpegurl',\n            // Apple sanctioned for backwards compatibility\n            'audio/mpegurl',\n            // Very common\n            'audio/x-mpegurl',\n            // Very common\n            'application/x-mpegurl',\n            // Included for completeness\n            'video/x-mpegurl', 'video/mpegurl', 'application/mpegurl'];\n        return canPlay.some(function (canItPlay) {\n            return /maybe|probably/i.test(video.canPlayType(canItPlay));\n        });\n    }();\n    Vhs.supportsNativeDash = function () {\n        if (!document || !document.createElement || !videojs.getTech('Html5').isSupported()) {\n            return false;\n        }\n        return /maybe|probably/i.test(document.createElement('video').canPlayType('application/dash+xml'));\n    }();\n    Vhs.supportsTypeNatively = type => {\n        if (type === 'hls') {\n            return Vhs.supportsNativeHls;\n        }\n        if (type === 'dash') {\n            return Vhs.supportsNativeDash;\n        }\n        return false;\n    };\n    /**\n     * VHS is a source handler, not a tech. Make sure attempts to use it\n     * as one do not cause exceptions.\n     */\n\n    Vhs.isSupported = function () {\n        return videojs.log.warn('VHS is no longer a tech. Please remove it from ' + 'your player\\'s techOrder.');\n    };\n    const Component = videojs.getComponent('Component');\n    /**\n     * The Vhs Handler object, where we orchestrate all of the parts\n     * of VHS to interact with video.js\n     *\n     * @class VhsHandler\n     * @extends videojs.Component\n     * @param {Object} source the soruce object\n     * @param {Tech} tech the parent tech object\n     * @param {Object} options optional and required options\n     */\n\n    class VhsHandler extends Component {\n        constructor(source, tech, options) {\n            super(tech, options.vhs); // if a tech level `initialBandwidth` option was passed\n            // use that over the VHS level `bandwidth` option\n\n            if (typeof options.initialBandwidth === 'number') {\n                this.options_.bandwidth = options.initialBandwidth;\n            }\n            this.logger_ = logger('VhsHandler'); // we need access to the player in some cases,\n            // so, get it from Video.js via the `playerId`\n\n            if (tech.options_ && tech.options_.playerId) {\n                const _player = videojs.getPlayer(tech.options_.playerId);\n                this.player_ = _player;\n            }\n            this.tech_ = tech;\n            this.source_ = source;\n            this.stats = {};\n            this.ignoreNextSeekingEvent_ = false;\n            this.setOptions_();\n            if (this.options_.overrideNative && tech.overrideNativeAudioTracks && tech.overrideNativeVideoTracks) {\n                tech.overrideNativeAudioTracks(true);\n                tech.overrideNativeVideoTracks(true);\n            } else if (this.options_.overrideNative && (tech.featuresNativeVideoTracks || tech.featuresNativeAudioTracks)) {\n                // overriding native VHS only works if audio tracks have been emulated\n                // error early if we're misconfigured\n                throw new Error('Overriding native VHS requires emulated tracks. ' + 'See https://git.io/vMpjB');\n            } // listen for fullscreenchange events for this player so that we\n            // can adjust our quality selection quickly\n\n            this.on(document, ['fullscreenchange', 'webkitfullscreenchange', 'mozfullscreenchange', 'MSFullscreenChange'], event => {\n                const fullscreenElement = document.fullscreenElement || document.webkitFullscreenElement || document.mozFullScreenElement || document.msFullscreenElement;\n                if (fullscreenElement && fullscreenElement.contains(this.tech_.el())) {\n                    this.playlistController_.fastQualityChange_();\n                } else {\n                    // When leaving fullscreen, since the in page pixel dimensions should be smaller\n                    // than full screen, see if there should be a rendition switch down to preserve\n                    // bandwidth.\n                    this.playlistController_.checkABR_();\n                }\n            });\n            this.on(this.tech_, 'seeking', function () {\n                if (this.ignoreNextSeekingEvent_) {\n                    this.ignoreNextSeekingEvent_ = false;\n                    return;\n                }\n                this.setCurrentTime(this.tech_.currentTime());\n            });\n            this.on(this.tech_, 'error', function () {\n                // verify that the error was real and we are loaded\n                // enough to have pc loaded.\n                if (this.tech_.error() && this.playlistController_) {\n                    this.playlistController_.pauseLoading();\n                }\n            });\n            this.on(this.tech_, 'play', this.play);\n        }\n        setOptions_() {\n            // defaults\n            this.options_.withCredentials = this.options_.withCredentials || false;\n            this.options_.limitRenditionByPlayerDimensions = this.options_.limitRenditionByPlayerDimensions === false ? false : true;\n            this.options_.useDevicePixelRatio = this.options_.useDevicePixelRatio || false;\n            this.options_.useBandwidthFromLocalStorage = typeof this.source_.useBandwidthFromLocalStorage !== 'undefined' ? this.source_.useBandwidthFromLocalStorage : this.options_.useBandwidthFromLocalStorage || false;\n            this.options_.useNetworkInformationApi = this.options_.useNetworkInformationApi || false;\n            this.options_.useDtsForTimestampOffset = this.options_.useDtsForTimestampOffset || false;\n            this.options_.customTagParsers = this.options_.customTagParsers || [];\n            this.options_.customTagMappers = this.options_.customTagMappers || [];\n            this.options_.cacheEncryptionKeys = this.options_.cacheEncryptionKeys || false;\n            this.options_.llhls = this.options_.llhls === false ? false : true;\n            this.options_.bufferBasedABR = this.options_.bufferBasedABR || false;\n            if (typeof this.options_.playlistExclusionDuration !== 'number') {\n                this.options_.playlistExclusionDuration = 5 * 60;\n            }\n            if (typeof this.options_.bandwidth !== 'number') {\n                if (this.options_.useBandwidthFromLocalStorage) {\n                    const storedObject = getVhsLocalStorage();\n                    if (storedObject && storedObject.bandwidth) {\n                        this.options_.bandwidth = storedObject.bandwidth;\n                        this.tech_.trigger({\n                            type: 'usage',\n                            name: 'vhs-bandwidth-from-local-storage'\n                        });\n                    }\n                    if (storedObject && storedObject.throughput) {\n                        this.options_.throughput = storedObject.throughput;\n                        this.tech_.trigger({\n                            type: 'usage',\n                            name: 'vhs-throughput-from-local-storage'\n                        });\n                    }\n                }\n            } // if bandwidth was not set by options or pulled from local storage, start playlist\n            // selection at a reasonable bandwidth\n\n            if (typeof this.options_.bandwidth !== 'number') {\n                this.options_.bandwidth = Config.INITIAL_BANDWIDTH;\n            } // If the bandwidth number is unchanged from the initial setting\n            // then this takes precedence over the enableLowInitialPlaylist option\n\n            this.options_.enableLowInitialPlaylist = this.options_.enableLowInitialPlaylist && this.options_.bandwidth === Config.INITIAL_BANDWIDTH; // grab options passed to player.src\n\n            ['withCredentials', 'useDevicePixelRatio', 'limitRenditionByPlayerDimensions', 'bandwidth', 'customTagParsers', 'customTagMappers', 'cacheEncryptionKeys', 'playlistSelector', 'initialPlaylistSelector', 'bufferBasedABR', 'liveRangeSafeTimeDelta', 'llhls', 'useNetworkInformationApi', 'useDtsForTimestampOffset', 'exactManifestTimings', 'leastPixelDiffSelector'].forEach(option => {\n                if (typeof this.source_[option] !== 'undefined') {\n                    this.options_[option] = this.source_[option];\n                }\n            });\n            this.limitRenditionByPlayerDimensions = this.options_.limitRenditionByPlayerDimensions;\n            this.useDevicePixelRatio = this.options_.useDevicePixelRatio;\n        }\n        /**\n         * called when player.src gets called, handle a new source\n         *\n         * @param {Object} src the source object to handle\n         */\n\n        src(src, type) {\n            // do nothing if the src is falsey\n            if (!src) {\n                return;\n            }\n            this.setOptions_(); // add main playlist controller options\n\n            this.options_.src = expandDataUri(this.source_.src);\n            this.options_.tech = this.tech_;\n            this.options_.externVhs = Vhs;\n            this.options_.sourceType = simpleTypeFromSourceType(type); // Whenever we seek internally, we should update the tech\n\n            this.options_.seekTo = time => {\n                this.tech_.setCurrentTime(time);\n            };\n            this.playlistController_ = new PlaylistController(this.options_);\n            const playbackWatcherOptions = merge({\n                liveRangeSafeTimeDelta: SAFE_TIME_DELTA\n            }, this.options_, {\n                seekable: () => this.seekable(),\n                media: () => this.playlistController_.media(),\n                playlistController: this.playlistController_\n            });\n            this.playbackWatcher_ = new PlaybackWatcher(playbackWatcherOptions);\n            this.playlistController_.on('error', () => {\n                const player = videojs.players[this.tech_.options_.playerId];\n                let error = this.playlistController_.error;\n                if (typeof error === 'object' && !error.code) {\n                    error.code = 3;\n                } else if (typeof error === 'string') {\n                    error = {\n                        message: error,\n                        code: 3\n                    };\n                }\n                player.error(error);\n            });\n            const defaultSelector = this.options_.bufferBasedABR ? Vhs.movingAverageBandwidthSelector(0.55) : Vhs.STANDARD_PLAYLIST_SELECTOR; // `this` in selectPlaylist should be the VhsHandler for backwards\n            // compatibility with < v2\n\n            this.playlistController_.selectPlaylist = this.selectPlaylist ? this.selectPlaylist.bind(this) : defaultSelector.bind(this);\n            this.playlistController_.selectInitialPlaylist = Vhs.INITIAL_PLAYLIST_SELECTOR.bind(this); // re-expose some internal objects for backwards compatibility with < v2\n\n            this.playlists = this.playlistController_.mainPlaylistLoader_;\n            this.mediaSource = this.playlistController_.mediaSource; // Proxy assignment of some properties to the main playlist\n            // controller. Using a custom property for backwards compatibility\n            // with < v2\n\n            Object.defineProperties(this, {\n                selectPlaylist: {\n                    get() {\n                        return this.playlistController_.selectPlaylist;\n                    },\n                    set(selectPlaylist) {\n                        this.playlistController_.selectPlaylist = selectPlaylist.bind(this);\n                    }\n                },\n                throughput: {\n                    get() {\n                        return this.playlistController_.mainSegmentLoader_.throughput.rate;\n                    },\n                    set(throughput) {\n                        this.playlistController_.mainSegmentLoader_.throughput.rate = throughput; // By setting `count` to 1 the throughput value becomes the starting value\n                        // for the cumulative average\n\n                        this.playlistController_.mainSegmentLoader_.throughput.count = 1;\n                    }\n                },\n                bandwidth: {\n                    get() {\n                        let playerBandwidthEst = this.playlistController_.mainSegmentLoader_.bandwidth;\n                        const networkInformation = window.navigator.connection || window.navigator.mozConnection || window.navigator.webkitConnection;\n                        const tenMbpsAsBitsPerSecond = 10e6;\n                        if (this.options_.useNetworkInformationApi && networkInformation) {\n                            // downlink returns Mbps\n                            // https://developer.mozilla.org/en-US/docs/Web/API/NetworkInformation/downlink\n                            const networkInfoBandwidthEstBitsPerSec = networkInformation.downlink * 1000 * 1000; // downlink maxes out at 10 Mbps. In the event that both networkInformationApi and the player\n                            // estimate a bandwidth greater than 10 Mbps, use the larger of the two estimates to ensure that\n                            // high quality streams are not filtered out.\n\n                            if (networkInfoBandwidthEstBitsPerSec >= tenMbpsAsBitsPerSecond && playerBandwidthEst >= tenMbpsAsBitsPerSecond) {\n                                playerBandwidthEst = Math.max(playerBandwidthEst, networkInfoBandwidthEstBitsPerSec);\n                            } else {\n                                playerBandwidthEst = networkInfoBandwidthEstBitsPerSec;\n                            }\n                        }\n                        return playerBandwidthEst;\n                    },\n                    set(bandwidth) {\n                        this.playlistController_.mainSegmentLoader_.bandwidth = bandwidth; // setting the bandwidth manually resets the throughput counter\n                        // `count` is set to zero that current value of `rate` isn't included\n                        // in the cumulative average\n\n                        this.playlistController_.mainSegmentLoader_.throughput = {\n                            rate: 0,\n                            count: 0\n                        };\n                    }\n                },\n                /**\n                 * `systemBandwidth` is a combination of two serial processes bit-rates. The first\n                 * is the network bitrate provided by `bandwidth` and the second is the bitrate of\n                 * the entire process after that - decryption, transmuxing, and appending - provided\n                 * by `throughput`.\n                 *\n                 * Since the two process are serial, the overall system bandwidth is given by:\n                 *   sysBandwidth = 1 / (1 / bandwidth + 1 / throughput)\n                 */\n                systemBandwidth: {\n                    get() {\n                        const invBandwidth = 1 / (this.bandwidth || 1);\n                        let invThroughput;\n                        if (this.throughput > 0) {\n                            invThroughput = 1 / this.throughput;\n                        } else {\n                            invThroughput = 0;\n                        }\n                        const systemBitrate = Math.floor(1 / (invBandwidth + invThroughput));\n                        return systemBitrate;\n                    },\n                    set() {\n                        videojs.log.error('The \"systemBandwidth\" property is read-only');\n                    }\n                }\n            });\n            if (this.options_.bandwidth) {\n                this.bandwidth = this.options_.bandwidth;\n            }\n            if (this.options_.throughput) {\n                this.throughput = this.options_.throughput;\n            }\n            Object.defineProperties(this.stats, {\n                bandwidth: {\n                    get: () => this.bandwidth || 0,\n                    enumerable: true\n                },\n                mediaRequests: {\n                    get: () => this.playlistController_.mediaRequests_() || 0,\n                    enumerable: true\n                },\n                mediaRequestsAborted: {\n                    get: () => this.playlistController_.mediaRequestsAborted_() || 0,\n                    enumerable: true\n                },\n                mediaRequestsTimedout: {\n                    get: () => this.playlistController_.mediaRequestsTimedout_() || 0,\n                    enumerable: true\n                },\n                mediaRequestsErrored: {\n                    get: () => this.playlistController_.mediaRequestsErrored_() || 0,\n                    enumerable: true\n                },\n                mediaTransferDuration: {\n                    get: () => this.playlistController_.mediaTransferDuration_() || 0,\n                    enumerable: true\n                },\n                mediaBytesTransferred: {\n                    get: () => this.playlistController_.mediaBytesTransferred_() || 0,\n                    enumerable: true\n                },\n                mediaSecondsLoaded: {\n                    get: () => this.playlistController_.mediaSecondsLoaded_() || 0,\n                    enumerable: true\n                },\n                mediaAppends: {\n                    get: () => this.playlistController_.mediaAppends_() || 0,\n                    enumerable: true\n                },\n                mainAppendsToLoadedData: {\n                    get: () => this.playlistController_.mainAppendsToLoadedData_() || 0,\n                    enumerable: true\n                },\n                audioAppendsToLoadedData: {\n                    get: () => this.playlistController_.audioAppendsToLoadedData_() || 0,\n                    enumerable: true\n                },\n                appendsToLoadedData: {\n                    get: () => this.playlistController_.appendsToLoadedData_() || 0,\n                    enumerable: true\n                },\n                timeToLoadedData: {\n                    get: () => this.playlistController_.timeToLoadedData_() || 0,\n                    enumerable: true\n                },\n                buffered: {\n                    get: () => timeRangesToArray(this.tech_.buffered()),\n                    enumerable: true\n                },\n                currentTime: {\n                    get: () => this.tech_.currentTime(),\n                    enumerable: true\n                },\n                currentSource: {\n                    get: () => this.tech_.currentSource_,\n                    enumerable: true\n                },\n                currentTech: {\n                    get: () => this.tech_.name_,\n                    enumerable: true\n                },\n                duration: {\n                    get: () => this.tech_.duration(),\n                    enumerable: true\n                },\n                main: {\n                    get: () => this.playlists.main,\n                    enumerable: true\n                },\n                playerDimensions: {\n                    get: () => this.tech_.currentDimensions(),\n                    enumerable: true\n                },\n                seekable: {\n                    get: () => timeRangesToArray(this.tech_.seekable()),\n                    enumerable: true\n                },\n                timestamp: {\n                    get: () => Date.now(),\n                    enumerable: true\n                },\n                videoPlaybackQuality: {\n                    get: () => this.tech_.getVideoPlaybackQuality(),\n                    enumerable: true\n                }\n            });\n            this.tech_.one('canplay', this.playlistController_.setupFirstPlay.bind(this.playlistController_));\n            this.tech_.on('bandwidthupdate', () => {\n                if (this.options_.useBandwidthFromLocalStorage) {\n                    updateVhsLocalStorage({\n                        bandwidth: this.bandwidth,\n                        throughput: Math.round(this.throughput)\n                    });\n                }\n            });\n            this.playlistController_.on('selectedinitialmedia', () => {\n                // Add the manual rendition mix-in to VhsHandler\n                renditionSelectionMixin(this);\n            });\n            this.playlistController_.sourceUpdater_.on('createdsourcebuffers', () => {\n                this.setupEme_();\n            }); // the bandwidth of the primary segment loader is our best\n            // estimate of overall bandwidth\n\n            this.on(this.playlistController_, 'progress', function () {\n                this.tech_.trigger('progress');\n            }); // In the live case, we need to ignore the very first `seeking` event since\n            // that will be the result of the seek-to-live behavior\n\n            this.on(this.playlistController_, 'firstplay', function () {\n                this.ignoreNextSeekingEvent_ = true;\n            });\n            this.setupQualityLevels_(); // do nothing if the tech has been disposed already\n            // this can occur if someone sets the src in player.ready(), for instance\n\n            if (!this.tech_.el()) {\n                return;\n            }\n            this.mediaSourceUrl_ = window.URL.createObjectURL(this.playlistController_.mediaSource);\n            this.tech_.src(this.mediaSourceUrl_);\n        }\n        createKeySessions_() {\n            const audioPlaylistLoader = this.playlistController_.mediaTypes_.AUDIO.activePlaylistLoader;\n            this.logger_('waiting for EME key session creation');\n            waitForKeySessionCreation({\n                player: this.player_,\n                sourceKeySystems: this.source_.keySystems,\n                audioMedia: audioPlaylistLoader && audioPlaylistLoader.media(),\n                mainPlaylists: this.playlists.main.playlists\n            }).then(() => {\n                this.logger_('created EME key session');\n                this.playlistController_.sourceUpdater_.initializedEme();\n            }).catch(err => {\n                this.logger_('error while creating EME key session', err);\n                this.player_.error({\n                    message: 'Failed to initialize media keys for EME',\n                    code: 3\n                });\n            });\n        }\n        handleWaitingForKey_() {\n            // If waitingforkey is fired, it's possible that the data that's necessary to retrieve\n            // the key is in the manifest. While this should've happened on initial source load, it\n            // may happen again in live streams where the keys change, and the manifest info\n            // reflects the update.\n            //\n            // Because videojs-contrib-eme compares the PSSH data we send to that of PSSH data it's\n            // already requested keys for, we don't have to worry about this generating extraneous\n            // requests.\n            this.logger_('waitingforkey fired, attempting to create any new key sessions');\n            this.createKeySessions_();\n        }\n        /**\n         * If necessary and EME is available, sets up EME options and waits for key session\n         * creation.\n         *\n         * This function also updates the source updater so taht it can be used, as for some\n         * browsers, EME must be configured before content is appended (if appending unencrypted\n         * content before encrypted content).\n         */\n\n        setupEme_() {\n            const audioPlaylistLoader = this.playlistController_.mediaTypes_.AUDIO.activePlaylistLoader;\n            const didSetupEmeOptions = setupEmeOptions({\n                player: this.player_,\n                sourceKeySystems: this.source_.keySystems,\n                media: this.playlists.media(),\n                audioMedia: audioPlaylistLoader && audioPlaylistLoader.media()\n            });\n            this.player_.tech_.on('keystatuschange', e => {\n                if (e.status !== 'output-restricted') {\n                    return;\n                }\n                const mainPlaylist = this.playlistController_.main();\n                if (!mainPlaylist || !mainPlaylist.playlists) {\n                    return;\n                }\n                const excludedHDPlaylists = []; // Assume all HD streams are unplayable and exclude them from ABR selection\n\n                mainPlaylist.playlists.forEach(playlist => {\n                    if (playlist && playlist.attributes && playlist.attributes.RESOLUTION && playlist.attributes.RESOLUTION.height >= 720) {\n                        if (!playlist.excludeUntil || playlist.excludeUntil < Infinity) {\n                            playlist.excludeUntil = Infinity;\n                            excludedHDPlaylists.push(playlist);\n                        }\n                    }\n                });\n                if (excludedHDPlaylists.length) {\n                    videojs.log.warn('DRM keystatus changed to \"output-restricted.\" Removing the following HD playlists ' + 'that will most likely fail to play and clearing the buffer. ' + 'This may be due to HDCP restrictions on the stream and the capabilities of the current device.', ...excludedHDPlaylists); // Clear the buffer before switching playlists, since it may already contain unplayable segments\n\n                    this.playlistController_.fastQualityChange_();\n                }\n            });\n            this.handleWaitingForKey_ = this.handleWaitingForKey_.bind(this);\n            this.player_.tech_.on('waitingforkey', this.handleWaitingForKey_); // In IE11 this is too early to initialize media keys, and IE11 does not support\n            // promises.\n\n            if (videojs.browser.IE_VERSION === 11 || !didSetupEmeOptions) {\n                // If EME options were not set up, we've done all we could to initialize EME.\n                this.playlistController_.sourceUpdater_.initializedEme();\n                return;\n            }\n            this.createKeySessions_();\n        }\n        /**\n         * Initializes the quality levels and sets listeners to update them.\n         *\n         * @method setupQualityLevels_\n         * @private\n         */\n\n        setupQualityLevels_() {\n            const player = videojs.players[this.tech_.options_.playerId]; // if there isn't a player or there isn't a qualityLevels plugin\n            // or qualityLevels_ listeners have already been setup, do nothing.\n\n            if (!player || !player.qualityLevels || this.qualityLevels_) {\n                return;\n            }\n            this.qualityLevels_ = player.qualityLevels();\n            this.playlistController_.on('selectedinitialmedia', () => {\n                handleVhsLoadedMetadata(this.qualityLevels_, this);\n            });\n            this.playlists.on('mediachange', () => {\n                handleVhsMediaChange(this.qualityLevels_, this.playlists);\n            });\n        }\n        /**\n         * return the version\n         */\n\n        static version() {\n            return {\n                '@videojs/http-streaming': version$4,\n                'mux.js': version$3,\n                'mpd-parser': version$2,\n                'm3u8-parser': version$1,\n                'aes-decrypter': version\n            };\n        }\n        /**\n         * return the version\n         */\n\n        version() {\n            return this.constructor.version();\n        }\n        canChangeType() {\n            return SourceUpdater.canChangeType();\n        }\n        /**\n         * Begin playing the video.\n         */\n\n        play() {\n            this.playlistController_.play();\n        }\n        /**\n         * a wrapper around the function in PlaylistController\n         */\n\n        setCurrentTime(currentTime) {\n            this.playlistController_.setCurrentTime(currentTime);\n        }\n        /**\n         * a wrapper around the function in PlaylistController\n         */\n\n        duration() {\n            return this.playlistController_.duration();\n        }\n        /**\n         * a wrapper around the function in PlaylistController\n         */\n\n        seekable() {\n            return this.playlistController_.seekable();\n        }\n        /**\n         * Abort all outstanding work and cleanup.\n         */\n\n        dispose() {\n            if (this.playbackWatcher_) {\n                this.playbackWatcher_.dispose();\n            }\n            if (this.playlistController_) {\n                this.playlistController_.dispose();\n            }\n            if (this.qualityLevels_) {\n                this.qualityLevels_.dispose();\n            }\n            if (this.tech_ && this.tech_.vhs) {\n                delete this.tech_.vhs;\n            }\n            if (this.mediaSourceUrl_ && window.URL.revokeObjectURL) {\n                window.URL.revokeObjectURL(this.mediaSourceUrl_);\n                this.mediaSourceUrl_ = null;\n            }\n            if (this.tech_) {\n                this.tech_.off('waitingforkey', this.handleWaitingForKey_);\n            }\n            super.dispose();\n        }\n        convertToProgramTime(time, callback) {\n            return getProgramTime({\n                playlist: this.playlistController_.media(),\n                time,\n                callback\n            });\n        } // the player must be playing before calling this\n\n        seekToProgramTime(programTime, callback, pauseAfterSeek = true, retryCount = 2) {\n            return seekToProgramTime({\n                programTime,\n                playlist: this.playlistController_.media(),\n                retryCount,\n                pauseAfterSeek,\n                seekTo: this.options_.seekTo,\n                tech: this.options_.tech,\n                callback\n            });\n        }\n    }\n    /**\n     * The Source Handler object, which informs video.js what additional\n     * MIME types are supported and sets up playback. 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\ No newline at end of file
diff --git a/media/player/videojs/amd/src/video-lazy.js b/media/player/videojs/amd/src/video-lazy.js
index 65c6094bc2f..362985ce8d0 100644
--- a/media/player/videojs/amd/src/video-lazy.js
+++ b/media/player/videojs/amd/src/video-lazy.js
@@ -1,6 +1,6 @@
 /**
  * @license
- * Video.js 7.20.3 <http://videojs.com/>
+ * Video.js 8.3.0 <http://videojs.com/>
  * Copyright Brightcove, Inc. <https://www.brightcove.com/>
  * Available under Apache License Version 2.0
  * <https://github.com/videojs/video.js/blob/main/LICENSE>
@@ -10,10868 +10,8282 @@
  * <https://github.com/mozilla/vtt.js/blob/main/LICENSE>
  */
 
- (function (global, factory) {
-  typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
-  typeof define === 'function' && define.amd ? define(factory) :
-  (global = typeof globalThis !== 'undefined' ? globalThis : global || self, global.videojs = factory());
-}(this, (function () { 'use strict';
+(function (global, factory) {
+    typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
+        typeof define === 'function' && define.amd ? define(factory) :
+            (global = typeof globalThis !== 'undefined' ? globalThis : global || self, global.videojs = factory());
+})(this, (function () { 'use strict';
 
-  var version$5 = "7.20.3";
+    var version$5 = "8.3.0";
 
-  /**
-   * An Object that contains lifecycle hooks as keys which point to an array
-   * of functions that are run when a lifecycle is triggered
-   *
-   * @private
-   */
-  var hooks_ = {};
-  /**
-   * Get a list of hooks for a specific lifecycle
-   *
-   * @param  {string} type
-   *         the lifecyle to get hooks from
-   *
-   * @param  {Function|Function[]} [fn]
-   *         Optionally add a hook (or hooks) to the lifecycle that your are getting.
-   *
-   * @return {Array}
-   *         an array of hooks, or an empty array if there are none.
-   */
-
-  var hooks = function hooks(type, fn) {
-    hooks_[type] = hooks_[type] || [];
-
-    if (fn) {
-      hooks_[type] = hooks_[type].concat(fn);
-    }
-
-    return hooks_[type];
-  };
-  /**
-   * Add a function hook to a specific videojs lifecycle.
-   *
-   * @param {string} type
-   *        the lifecycle to hook the function to.
-   *
-   * @param {Function|Function[]}
-   *        The function or array of functions to attach.
-   */
-
-
-  var hook = function hook(type, fn) {
-    hooks(type, fn);
-  };
-  /**
-   * Remove a hook from a specific videojs lifecycle.
-   *
-   * @param  {string} type
-   *         the lifecycle that the function hooked to
-   *
-   * @param  {Function} fn
-   *         The hooked function to remove
-   *
-   * @return {boolean}
-   *         The function that was removed or undef
-   */
-
-
-  var removeHook = function removeHook(type, fn) {
-    var index = hooks(type).indexOf(fn);
-
-    if (index <= -1) {
-      return false;
-    }
-
-    hooks_[type] = hooks_[type].slice();
-    hooks_[type].splice(index, 1);
-    return true;
-  };
-  /**
-   * Add a function hook that will only run once to a specific videojs lifecycle.
-   *
-   * @param {string} type
-   *        the lifecycle to hook the function to.
-   *
-   * @param {Function|Function[]}
-   *        The function or array of functions to attach.
-   */
-
-
-  var hookOnce = function hookOnce(type, fn) {
-    hooks(type, [].concat(fn).map(function (original) {
-      var wrapper = function wrapper() {
-        removeHook(type, wrapper);
-        return original.apply(void 0, arguments);
-      };
-
-      return wrapper;
-    }));
-  };
-
-  /**
-   * @file fullscreen-api.js
-   * @module fullscreen-api
-   * @private
-   */
-
-  /**
-   * Store the browser-specific methods for the fullscreen API.
-   *
-   * @type {Object}
-   * @see [Specification]{@link https://fullscreen.spec.whatwg.org}
-   * @see [Map Approach From Screenfull.js]{@link https://github.com/sindresorhus/screenfull.js}
-   */
-  var FullscreenApi = {
-    prefixed: true
-  }; // browser API methods
-
-  var apiMap = [['requestFullscreen', 'exitFullscreen', 'fullscreenElement', 'fullscreenEnabled', 'fullscreenchange', 'fullscreenerror', 'fullscreen'], // WebKit
-  ['webkitRequestFullscreen', 'webkitExitFullscreen', 'webkitFullscreenElement', 'webkitFullscreenEnabled', 'webkitfullscreenchange', 'webkitfullscreenerror', '-webkit-full-screen'], // Mozilla
-  ['mozRequestFullScreen', 'mozCancelFullScreen', 'mozFullScreenElement', 'mozFullScreenEnabled', 'mozfullscreenchange', 'mozfullscreenerror', '-moz-full-screen'], // Microsoft
-  ['msRequestFullscreen', 'msExitFullscreen', 'msFullscreenElement', 'msFullscreenEnabled', 'MSFullscreenChange', 'MSFullscreenError', '-ms-fullscreen']];
-  var specApi = apiMap[0];
-  var browserApi; // determine the supported set of functions
-
-  for (var i = 0; i < apiMap.length; i++) {
-    // check for exitFullscreen function
-    if (apiMap[i][1] in document) {
-      browserApi = apiMap[i];
-      break;
-    }
-  } // map the browser API names to the spec API names
-
-
-  if (browserApi) {
-    for (var _i = 0; _i < browserApi.length; _i++) {
-      FullscreenApi[specApi[_i]] = browserApi[_i];
-    }
-
-    FullscreenApi.prefixed = browserApi[0] !== specApi[0];
-  }
-
-  /**
-   * @file create-logger.js
-   * @module create-logger
-   */
-  // This is the private tracking variable for the logging history.
-  var history = [];
-  /**
-   * Log messages to the console and history based on the type of message
-   *
-   * @private
-   * @param  {string} type
-   *         The name of the console method to use.
-   *
-   * @param  {Array} args
-   *         The arguments to be passed to the matching console method.
-   */
-
-  var LogByTypeFactory = function LogByTypeFactory(name, log) {
-    return function (type, level, args) {
-      var lvl = log.levels[level];
-      var lvlRegExp = new RegExp("^(" + lvl + ")$");
-
-      if (type !== 'log') {
-        // Add the type to the front of the message when it's not "log".
-        args.unshift(type.toUpperCase() + ':');
-      } // Add console prefix after adding to history.
-
-
-      args.unshift(name + ':'); // Add a clone of the args at this point to history.
-
-      if (history) {
-        history.push([].concat(args)); // only store 1000 history entries
-
-        var splice = history.length - 1000;
-        history.splice(0, splice > 0 ? splice : 0);
-      } // If there's no console then don't try to output messages, but they will
-      // still be stored in history.
-
-
-      if (!window.console) {
-        return;
-      } // Was setting these once outside of this function, but containing them
-      // in the function makes it easier to test cases where console doesn't exist
-      // when the module is executed.
-
-
-      var fn = window.console[type];
-
-      if (!fn && type === 'debug') {
-        // Certain browsers don't have support for console.debug. For those, we
-        // should default to the closest comparable log.
-        fn = window.console.info || window.console.log;
-      } // Bail out if there's no console or if this type is not allowed by the
-      // current logging level.
-
-
-      if (!fn || !lvl || !lvlRegExp.test(type)) {
-        return;
-      }
-
-      fn[Array.isArray(args) ? 'apply' : 'call'](window.console, args);
-    };
-  };
-
-  function createLogger$1(name) {
-    // This is the private tracking variable for logging level.
-    var level = 'info'; // the curried logByType bound to the specific log and history
-
-    var logByType;
     /**
-     * Logs plain debug messages. Similar to `console.log`.
+     * An Object that contains lifecycle hooks as keys which point to an array
+     * of functions that are run when a lifecycle is triggered
      *
-     * Due to [limitations](https://github.com/jsdoc3/jsdoc/issues/955#issuecomment-313829149)
-     * of our JSDoc template, we cannot properly document this as both a function
-     * and a namespace, so its function signature is documented here.
-     *
-     * #### Arguments
-     * ##### *args
-     * Mixed[]
-     *
-     * Any combination of values that could be passed to `console.log()`.
-     *
-     * #### Return Value
-     *
-     * `undefined`
-     *
-     * @namespace
-     * @param    {Mixed[]} args
-     *           One or more messages or objects that should be logged.
+     * @private
      */
+    const hooks_ = {};
 
-    var log = function log() {
-      for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
-        args[_key] = arguments[_key];
-      }
-
-      logByType('log', level, args);
-    }; // This is the logByType helper that the logging methods below use
-
-
-    logByType = LogByTypeFactory(name, log);
     /**
-     * Create a new sublogger which chains the old name to the new name.
+     * Get a list of hooks for a specific lifecycle
      *
-     * For example, doing `videojs.log.createLogger('player')` and then using that logger will log the following:
-     * ```js
-     *  mylogger('foo');
-     *  // > VIDEOJS: player: foo
-     * ```
+     * @param  {string} type
+     *         the lifecycle to get hooks from
      *
-     * @param {string} name
-     *        The name to add call the new logger
-     * @return {Object}
-     */
-
-    log.createLogger = function (subname) {
-      return createLogger$1(name + ': ' + subname);
-    };
-    /**
-     * Enumeration of available logging levels, where the keys are the level names
-     * and the values are `|`-separated strings containing logging methods allowed
-     * in that logging level. These strings are used to create a regular expression
-     * matching the function name being called.
-     *
-     * Levels provided by Video.js are:
-     *
-     * - `off`: Matches no calls. Any value that can be cast to `false` will have
-     *   this effect. The most restrictive.
-     * - `all`: Matches only Video.js-provided functions (`debug`, `log`,
-     *   `log.warn`, and `log.error`).
-     * - `debug`: Matches `log.debug`, `log`, `log.warn`, and `log.error` calls.
-     * - `info` (default): Matches `log`, `log.warn`, and `log.error` calls.
-     * - `warn`: Matches `log.warn` and `log.error` calls.
-     * - `error`: Matches only `log.error` calls.
-     *
-     * @type {Object}
-     */
-
-
-    log.levels = {
-      all: 'debug|log|warn|error',
-      off: '',
-      debug: 'debug|log|warn|error',
-      info: 'log|warn|error',
-      warn: 'warn|error',
-      error: 'error',
-      DEFAULT: level
-    };
-    /**
-     * Get or set the current logging level.
-     *
-     * If a string matching a key from {@link module:log.levels} is provided, acts
-     * as a setter.
-     *
-     * @param  {string} [lvl]
-     *         Pass a valid level to set a new logging level.
-     *
-     * @return {string}
-     *         The current logging level.
-     */
-
-    log.level = function (lvl) {
-      if (typeof lvl === 'string') {
-        if (!log.levels.hasOwnProperty(lvl)) {
-          throw new Error("\"" + lvl + "\" in not a valid log level");
-        }
-
-        level = lvl;
-      }
-
-      return level;
-    };
-    /**
-     * Returns an array containing everything that has been logged to the history.
-     *
-     * This array is a shallow clone of the internal history record. However, its
-     * contents are _not_ cloned; so, mutating objects inside this array will
-     * mutate them in history.
+     * @param  {Function|Function[]} [fn]
+     *         Optionally add a hook (or hooks) to the lifecycle that your are getting.
      *
      * @return {Array}
+     *         an array of hooks, or an empty array if there are none.
      */
-
-
-    log.history = function () {
-      return history ? [].concat(history) : [];
-    };
-    /**
-     * Allows you to filter the history by the given logger name
-     *
-     * @param {string} fname
-     *        The name to filter by
-     *
-     * @return {Array}
-     *         The filtered list to return
-     */
-
-
-    log.history.filter = function (fname) {
-      return (history || []).filter(function (historyItem) {
-        // if the first item in each historyItem includes `fname`, then it's a match
-        return new RegExp(".*" + fname + ".*").test(historyItem[0]);
-      });
-    };
-    /**
-     * Clears the internal history tracking, but does not prevent further history
-     * tracking.
-     */
-
-
-    log.history.clear = function () {
-      if (history) {
-        history.length = 0;
-      }
-    };
-    /**
-     * Disable history tracking if it is currently enabled.
-     */
-
-
-    log.history.disable = function () {
-      if (history !== null) {
-        history.length = 0;
-        history = null;
-      }
-    };
-    /**
-     * Enable history tracking if it is currently disabled.
-     */
-
-
-    log.history.enable = function () {
-      if (history === null) {
-        history = [];
-      }
-    };
-    /**
-     * Logs error messages. Similar to `console.error`.
-     *
-     * @param {Mixed[]} args
-     *        One or more messages or objects that should be logged as an error
-     */
-
-
-    log.error = function () {
-      for (var _len2 = arguments.length, args = new Array(_len2), _key2 = 0; _key2 < _len2; _key2++) {
-        args[_key2] = arguments[_key2];
-      }
-
-      return logByType('error', level, args);
-    };
-    /**
-     * Logs warning messages. Similar to `console.warn`.
-     *
-     * @param {Mixed[]} args
-     *        One or more messages or objects that should be logged as a warning.
-     */
-
-
-    log.warn = function () {
-      for (var _len3 = arguments.length, args = new Array(_len3), _key3 = 0; _key3 < _len3; _key3++) {
-        args[_key3] = arguments[_key3];
-      }
-
-      return logByType('warn', level, args);
-    };
-    /**
-     * Logs debug messages. Similar to `console.debug`, but may also act as a comparable
-     * log if `console.debug` is not available
-     *
-     * @param {Mixed[]} args
-     *        One or more messages or objects that should be logged as debug.
-     */
-
-
-    log.debug = function () {
-      for (var _len4 = arguments.length, args = new Array(_len4), _key4 = 0; _key4 < _len4; _key4++) {
-        args[_key4] = arguments[_key4];
-      }
-
-      return logByType('debug', level, args);
-    };
-
-    return log;
-  }
-
-  /**
-   * @file log.js
-   * @module log
-   */
-  var log$1 = createLogger$1('VIDEOJS');
-  var createLogger = log$1.createLogger;
-
-  var commonjsGlobal = typeof globalThis !== 'undefined' ? globalThis : typeof window !== 'undefined' ? window : typeof global !== 'undefined' ? global : typeof self !== 'undefined' ? self : {};
-
-  function createCommonjsModule(fn, module) {
-  	return module = { exports: {} }, fn(module, module.exports), module.exports;
-  }
-
-  var _extends_1 = createCommonjsModule(function (module) {
-    function _extends() {
-      module.exports = _extends = Object.assign || function (target) {
-        for (var i = 1; i < arguments.length; i++) {
-          var source = arguments[i];
-
-          for (var key in source) {
-            if (Object.prototype.hasOwnProperty.call(source, key)) {
-              target[key] = source[key];
-            }
-          }
+    const hooks = function (type, fn) {
+        hooks_[type] = hooks_[type] || [];
+        if (fn) {
+            hooks_[type] = hooks_[type].concat(fn);
         }
-
-        return target;
-      };
-
-      return _extends.apply(this, arguments);
-    }
-
-    module.exports = _extends;
-  });
-
-  /**
-   * @file obj.js
-   * @module obj
-   */
-
-  /**
-   * @callback obj:EachCallback
-   *
-   * @param {Mixed} value
-   *        The current key for the object that is being iterated over.
-   *
-   * @param {string} key
-   *        The current key-value for object that is being iterated over
-   */
-
-  /**
-   * @callback obj:ReduceCallback
-   *
-   * @param {Mixed} accum
-   *        The value that is accumulating over the reduce loop.
-   *
-   * @param {Mixed} value
-   *        The current key for the object that is being iterated over.
-   *
-   * @param {string} key
-   *        The current key-value for object that is being iterated over
-   *
-   * @return {Mixed}
-   *         The new accumulated value.
-   */
-  var toString$1 = Object.prototype.toString;
-  /**
-   * Get the keys of an Object
-   *
-   * @param {Object}
-   *        The Object to get the keys from
-   *
-   * @return {string[]}
-   *         An array of the keys from the object. Returns an empty array if the
-   *         object passed in was invalid or had no keys.
-   *
-   * @private
-   */
-
-  var keys = function keys(object) {
-    return isObject$1(object) ? Object.keys(object) : [];
-  };
-  /**
-   * Array-like iteration for objects.
-   *
-   * @param {Object} object
-   *        The object to iterate over
-   *
-   * @param {obj:EachCallback} fn
-   *        The callback function which is called for each key in the object.
-   */
-
-
-  function each(object, fn) {
-    keys(object).forEach(function (key) {
-      return fn(object[key], key);
-    });
-  }
-  /**
-   * Array-like reduce for objects.
-   *
-   * @param {Object} object
-   *        The Object that you want to reduce.
-   *
-   * @param {Function} fn
-   *         A callback function which is called for each key in the object. It
-   *         receives the accumulated value and the per-iteration value and key
-   *         as arguments.
-   *
-   * @param {Mixed} [initial = 0]
-   *        Starting value
-   *
-   * @return {Mixed}
-   *         The final accumulated value.
-   */
-
-  function reduce(object, fn, initial) {
-    if (initial === void 0) {
-      initial = 0;
-    }
-
-    return keys(object).reduce(function (accum, key) {
-      return fn(accum, object[key], key);
-    }, initial);
-  }
-  /**
-   * Object.assign-style object shallow merge/extend.
-   *
-   * @param  {Object} target
-   * @param  {Object} ...sources
-   * @return {Object}
-   */
-
-  function assign(target) {
-    for (var _len = arguments.length, sources = new Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {
-      sources[_key - 1] = arguments[_key];
-    }
-
-    if (Object.assign) {
-      return _extends_1.apply(void 0, [target].concat(sources));
-    }
-
-    sources.forEach(function (source) {
-      if (!source) {
-        return;
-      }
-
-      each(source, function (value, key) {
-        target[key] = value;
-      });
-    });
-    return target;
-  }
-  /**
-   * Returns whether a value is an object of any kind - including DOM nodes,
-   * arrays, regular expressions, etc. Not functions, though.
-   *
-   * This avoids the gotcha where using `typeof` on a `null` value
-   * results in `'object'`.
-   *
-   * @param  {Object} value
-   * @return {boolean}
-   */
-
-  function isObject$1(value) {
-    return !!value && typeof value === 'object';
-  }
-  /**
-   * Returns whether an object appears to be a "plain" object - that is, a
-   * direct instance of `Object`.
-   *
-   * @param  {Object} value
-   * @return {boolean}
-   */
-
-  function isPlain(value) {
-    return isObject$1(value) && toString$1.call(value) === '[object Object]' && value.constructor === Object;
-  }
-
-  /**
-   * @file computed-style.js
-   * @module computed-style
-   */
-
-  /**
-   * A safe getComputedStyle.
-   *
-   * This is needed because in Firefox, if the player is loaded in an iframe with
-   * `display:none`, then `getComputedStyle` returns `null`, so, we do a
-   * null-check to make sure that the player doesn't break in these cases.
-   *
-   * @function
-   * @param    {Element} el
-   *           The element you want the computed style of
-   *
-   * @param    {string} prop
-   *           The property name you want
-   *
-   * @see      https://bugzilla.mozilla.org/show_bug.cgi?id=548397
-   */
-  function computedStyle(el, prop) {
-    if (!el || !prop) {
-      return '';
-    }
-
-    if (typeof window.getComputedStyle === 'function') {
-      var computedStyleValue;
-
-      try {
-        computedStyleValue = window.getComputedStyle(el);
-      } catch (e) {
-        return '';
-      }
-
-      return computedStyleValue ? computedStyleValue.getPropertyValue(prop) || computedStyleValue[prop] : '';
-    }
-
-    return '';
-  }
-
-  /**
-   * @file browser.js
-   * @module browser
-   */
-  var USER_AGENT = window.navigator && window.navigator.userAgent || '';
-  var webkitVersionMap = /AppleWebKit\/([\d.]+)/i.exec(USER_AGENT);
-  var appleWebkitVersion = webkitVersionMap ? parseFloat(webkitVersionMap.pop()) : null;
-  /**
-   * Whether or not this device is an iPod.
-   *
-   * @static
-   * @const
-   * @type {Boolean}
-   */
-
-  var IS_IPOD = /iPod/i.test(USER_AGENT);
-  /**
-   * The detected iOS version - or `null`.
-   *
-   * @static
-   * @const
-   * @type {string|null}
-   */
-
-  var IOS_VERSION = function () {
-    var match = USER_AGENT.match(/OS (\d+)_/i);
-
-    if (match && match[1]) {
-      return match[1];
-    }
-
-    return null;
-  }();
-  /**
-   * Whether or not this is an Android device.
-   *
-   * @static
-   * @const
-   * @type {Boolean}
-   */
-
-  var IS_ANDROID = /Android/i.test(USER_AGENT);
-  /**
-   * The detected Android version - or `null`.
-   *
-   * @static
-   * @const
-   * @type {number|string|null}
-   */
-
-  var ANDROID_VERSION = function () {
-    // This matches Android Major.Minor.Patch versions
-    // ANDROID_VERSION is Major.Minor as a Number, if Minor isn't available, then only Major is returned
-    var match = USER_AGENT.match(/Android (\d+)(?:\.(\d+))?(?:\.(\d+))*/i);
-
-    if (!match) {
-      return null;
-    }
-
-    var major = match[1] && parseFloat(match[1]);
-    var minor = match[2] && parseFloat(match[2]);
-
-    if (major && minor) {
-      return parseFloat(match[1] + '.' + match[2]);
-    } else if (major) {
-      return major;
-    }
-
-    return null;
-  }();
-  /**
-   * Whether or not this is a native Android browser.
-   *
-   * @static
-   * @const
-   * @type {Boolean}
-   */
-
-  var IS_NATIVE_ANDROID = IS_ANDROID && ANDROID_VERSION < 5 && appleWebkitVersion < 537;
-  /**
-   * Whether or not this is Mozilla Firefox.
-   *
-   * @static
-   * @const
-   * @type {Boolean}
-   */
-
-  var IS_FIREFOX = /Firefox/i.test(USER_AGENT);
-  /**
-   * Whether or not this is Microsoft Edge.
-   *
-   * @static
-   * @const
-   * @type {Boolean}
-   */
-
-  var IS_EDGE = /Edg/i.test(USER_AGENT);
-  /**
-   * Whether or not this is Google Chrome.
-   *
-   * This will also be `true` for Chrome on iOS, which will have different support
-   * as it is actually Safari under the hood.
-   *
-   * @static
-   * @const
-   * @type {Boolean}
-   */
-
-  var IS_CHROME = !IS_EDGE && (/Chrome/i.test(USER_AGENT) || /CriOS/i.test(USER_AGENT));
-  /**
-   * The detected Google Chrome version - or `null`.
-   *
-   * @static
-   * @const
-   * @type {number|null}
-   */
-
-  var CHROME_VERSION = function () {
-    var match = USER_AGENT.match(/(Chrome|CriOS)\/(\d+)/);
-
-    if (match && match[2]) {
-      return parseFloat(match[2]);
-    }
-
-    return null;
-  }();
-  /**
-   * The detected Internet Explorer version - or `null`.
-   *
-   * @static
-   * @const
-   * @type {number|null}
-   */
-
-  var IE_VERSION = function () {
-    var result = /MSIE\s(\d+)\.\d/.exec(USER_AGENT);
-    var version = result && parseFloat(result[1]);
-
-    if (!version && /Trident\/7.0/i.test(USER_AGENT) && /rv:11.0/.test(USER_AGENT)) {
-      // IE 11 has a different user agent string than other IE versions
-      version = 11.0;
-    }
-
-    return version;
-  }();
-  /**
-   * Whether or not this is desktop Safari.
-   *
-   * @static
-   * @const
-   * @type {Boolean}
-   */
-
-  var IS_SAFARI = /Safari/i.test(USER_AGENT) && !IS_CHROME && !IS_ANDROID && !IS_EDGE;
-  /**
-   * Whether or not this is a Windows machine.
-   *
-   * @static
-   * @const
-   * @type {Boolean}
-   */
-
-  var IS_WINDOWS = /Windows/i.test(USER_AGENT);
-  /**
-   * Whether or not this device is touch-enabled.
-   *
-   * @static
-   * @const
-   * @type {Boolean}
-   */
-
-  var TOUCH_ENABLED = Boolean(isReal() && ('ontouchstart' in window || window.navigator.maxTouchPoints || window.DocumentTouch && window.document instanceof window.DocumentTouch));
-  /**
-   * Whether or not this device is an iPad.
-   *
-   * @static
-   * @const
-   * @type {Boolean}
-   */
-
-  var IS_IPAD = /iPad/i.test(USER_AGENT) || IS_SAFARI && TOUCH_ENABLED && !/iPhone/i.test(USER_AGENT);
-  /**
-   * Whether or not this device is an iPhone.
-   *
-   * @static
-   * @const
-   * @type {Boolean}
-   */
-  // The Facebook app's UIWebView identifies as both an iPhone and iPad, so
-  // to identify iPhones, we need to exclude iPads.
-  // http://artsy.github.io/blog/2012/10/18/the-perils-of-ios-user-agent-sniffing/
-
-  var IS_IPHONE = /iPhone/i.test(USER_AGENT) && !IS_IPAD;
-  /**
-   * Whether or not this is an iOS device.
-   *
-   * @static
-   * @const
-   * @type {Boolean}
-   */
-
-  var IS_IOS = IS_IPHONE || IS_IPAD || IS_IPOD;
-  /**
-   * Whether or not this is any flavor of Safari - including iOS.
-   *
-   * @static
-   * @const
-   * @type {Boolean}
-   */
-
-  var IS_ANY_SAFARI = (IS_SAFARI || IS_IOS) && !IS_CHROME;
-
-  var browser = /*#__PURE__*/Object.freeze({
-    __proto__: null,
-    IS_IPOD: IS_IPOD,
-    IOS_VERSION: IOS_VERSION,
-    IS_ANDROID: IS_ANDROID,
-    ANDROID_VERSION: ANDROID_VERSION,
-    IS_NATIVE_ANDROID: IS_NATIVE_ANDROID,
-    IS_FIREFOX: IS_FIREFOX,
-    IS_EDGE: IS_EDGE,
-    IS_CHROME: IS_CHROME,
-    CHROME_VERSION: CHROME_VERSION,
-    IE_VERSION: IE_VERSION,
-    IS_SAFARI: IS_SAFARI,
-    IS_WINDOWS: IS_WINDOWS,
-    TOUCH_ENABLED: TOUCH_ENABLED,
-    IS_IPAD: IS_IPAD,
-    IS_IPHONE: IS_IPHONE,
-    IS_IOS: IS_IOS,
-    IS_ANY_SAFARI: IS_ANY_SAFARI
-  });
-
-  /**
-   * @file dom.js
-   * @module dom
-   */
-  /**
-   * Detect if a value is a string with any non-whitespace characters.
-   *
-   * @private
-   * @param  {string} str
-   *         The string to check
-   *
-   * @return {boolean}
-   *         Will be `true` if the string is non-blank, `false` otherwise.
-   *
-   */
-
-  function isNonBlankString(str) {
-    // we use str.trim as it will trim any whitespace characters
-    // from the front or back of non-whitespace characters. aka
-    // Any string that contains non-whitespace characters will
-    // still contain them after `trim` but whitespace only strings
-    // will have a length of 0, failing this check.
-    return typeof str === 'string' && Boolean(str.trim());
-  }
-  /**
-   * Throws an error if the passed string has whitespace. This is used by
-   * class methods to be relatively consistent with the classList API.
-   *
-   * @private
-   * @param  {string} str
-   *         The string to check for whitespace.
-   *
-   * @throws {Error}
-   *         Throws an error if there is whitespace in the string.
-   */
-
-
-  function throwIfWhitespace(str) {
-    // str.indexOf instead of regex because str.indexOf is faster performance wise.
-    if (str.indexOf(' ') >= 0) {
-      throw new Error('class has illegal whitespace characters');
-    }
-  }
-  /**
-   * Produce a regular expression for matching a className within an elements className.
-   *
-   * @private
-   * @param  {string} className
-   *         The className to generate the RegExp for.
-   *
-   * @return {RegExp}
-   *         The RegExp that will check for a specific `className` in an elements
-   *         className.
-   */
-
-
-  function classRegExp(className) {
-    return new RegExp('(^|\\s)' + className + '($|\\s)');
-  }
-  /**
-   * Whether the current DOM interface appears to be real (i.e. not simulated).
-   *
-   * @return {boolean}
-   *         Will be `true` if the DOM appears to be real, `false` otherwise.
-   */
-
-
-  function isReal() {
-    // Both document and window will never be undefined thanks to `global`.
-    return document === window.document;
-  }
-  /**
-   * Determines, via duck typing, whether or not a value is a DOM element.
-   *
-   * @param  {Mixed} value
-   *         The value to check.
-   *
-   * @return {boolean}
-   *         Will be `true` if the value is a DOM element, `false` otherwise.
-   */
-
-  function isEl(value) {
-    return isObject$1(value) && value.nodeType === 1;
-  }
-  /**
-   * Determines if the current DOM is embedded in an iframe.
-   *
-   * @return {boolean}
-   *         Will be `true` if the DOM is embedded in an iframe, `false`
-   *         otherwise.
-   */
-
-  function isInFrame() {
-    // We need a try/catch here because Safari will throw errors when attempting
-    // to get either `parent` or `self`
-    try {
-      return window.parent !== window.self;
-    } catch (x) {
-      return true;
-    }
-  }
-  /**
-   * Creates functions to query the DOM using a given method.
-   *
-   * @private
-   * @param   {string} method
-   *          The method to create the query with.
-   *
-   * @return  {Function}
-   *          The query method
-   */
-
-  function createQuerier(method) {
-    return function (selector, context) {
-      if (!isNonBlankString(selector)) {
-        return document[method](null);
-      }
-
-      if (isNonBlankString(context)) {
-        context = document.querySelector(context);
-      }
-
-      var ctx = isEl(context) ? context : document;
-      return ctx[method] && ctx[method](selector);
+        return hooks_[type];
     };
-  }
-  /**
-   * Creates an element and applies properties, attributes, and inserts content.
-   *
-   * @param  {string} [tagName='div']
-   *         Name of tag to be created.
-   *
-   * @param  {Object} [properties={}]
-   *         Element properties to be applied.
-   *
-   * @param  {Object} [attributes={}]
-   *         Element attributes to be applied.
-   *
-   * @param {module:dom~ContentDescriptor} content
-   *        A content descriptor object.
-   *
-   * @return {Element}
-   *         The element that was created.
-   */
-
-
-  function createEl(tagName, properties, attributes, content) {
-    if (tagName === void 0) {
-      tagName = 'div';
-    }
-
-    if (properties === void 0) {
-      properties = {};
-    }
-
-    if (attributes === void 0) {
-      attributes = {};
-    }
-
-    var el = document.createElement(tagName);
-    Object.getOwnPropertyNames(properties).forEach(function (propName) {
-      var val = properties[propName]; // See #2176
-      // We originally were accepting both properties and attributes in the
-      // same object, but that doesn't work so well.
-
-      if (propName.indexOf('aria-') !== -1 || propName === 'role' || propName === 'type') {
-        log$1.warn('Setting attributes in the second argument of createEl()\n' + 'has been deprecated. Use the third argument instead.\n' + ("createEl(type, properties, attributes). Attempting to set " + propName + " to " + val + "."));
-        el.setAttribute(propName, val); // Handle textContent since it's not supported everywhere and we have a
-        // method for it.
-      } else if (propName === 'textContent') {
-        textContent(el, val);
-      } else if (el[propName] !== val || propName === 'tabIndex') {
-        el[propName] = val;
-      }
-    });
-    Object.getOwnPropertyNames(attributes).forEach(function (attrName) {
-      el.setAttribute(attrName, attributes[attrName]);
-    });
-
-    if (content) {
-      appendContent(el, content);
-    }
-
-    return el;
-  }
-  /**
-   * Injects text into an element, replacing any existing contents entirely.
-   *
-   * @param  {Element} el
-   *         The element to add text content into
-   *
-   * @param  {string} text
-   *         The text content to add.
-   *
-   * @return {Element}
-   *         The element with added text content.
-   */
-
-  function textContent(el, text) {
-    if (typeof el.textContent === 'undefined') {
-      el.innerText = text;
-    } else {
-      el.textContent = text;
-    }
-
-    return el;
-  }
-  /**
-   * Insert an element as the first child node of another
-   *
-   * @param {Element} child
-   *        Element to insert
-   *
-   * @param {Element} parent
-   *        Element to insert child into
-   */
-
-  function prependTo(child, parent) {
-    if (parent.firstChild) {
-      parent.insertBefore(child, parent.firstChild);
-    } else {
-      parent.appendChild(child);
-    }
-  }
-  /**
-   * Check if an element has a class name.
-   *
-   * @param  {Element} element
-   *         Element to check
-   *
-   * @param  {string} classToCheck
-   *         Class name to check for
-   *
-   * @return {boolean}
-   *         Will be `true` if the element has a class, `false` otherwise.
-   *
-   * @throws {Error}
-   *         Throws an error if `classToCheck` has white space.
-   */
-
-  function hasClass(element, classToCheck) {
-    throwIfWhitespace(classToCheck);
-
-    if (element.classList) {
-      return element.classList.contains(classToCheck);
-    }
-
-    return classRegExp(classToCheck).test(element.className);
-  }
-  /**
-   * Add a class name to an element.
-   *
-   * @param  {Element} element
-   *         Element to add class name to.
-   *
-   * @param  {string} classToAdd
-   *         Class name to add.
-   *
-   * @return {Element}
-   *         The DOM element with the added class name.
-   */
-
-  function addClass(element, classToAdd) {
-    if (element.classList) {
-      element.classList.add(classToAdd); // Don't need to `throwIfWhitespace` here because `hasElClass` will do it
-      // in the case of classList not being supported.
-    } else if (!hasClass(element, classToAdd)) {
-      element.className = (element.className + ' ' + classToAdd).trim();
-    }
-
-    return element;
-  }
-  /**
-   * Remove a class name from an element.
-   *
-   * @param  {Element} element
-   *         Element to remove a class name from.
-   *
-   * @param  {string} classToRemove
-   *         Class name to remove
-   *
-   * @return {Element}
-   *         The DOM element with class name removed.
-   */
-
-  function removeClass(element, classToRemove) {
-    // Protect in case the player gets disposed
-    if (!element) {
-      log$1.warn("removeClass was called with an element that doesn't exist");
-      return null;
-    }
-
-    if (element.classList) {
-      element.classList.remove(classToRemove);
-    } else {
-      throwIfWhitespace(classToRemove);
-      element.className = element.className.split(/\s+/).filter(function (c) {
-        return c !== classToRemove;
-      }).join(' ');
-    }
-
-    return element;
-  }
-  /**
-   * The callback definition for toggleClass.
-   *
-   * @callback module:dom~PredicateCallback
-   * @param    {Element} element
-   *           The DOM element of the Component.
-   *
-   * @param    {string} classToToggle
-   *           The `className` that wants to be toggled
-   *
-   * @return   {boolean|undefined}
-   *           If `true` is returned, the `classToToggle` will be added to the
-   *           `element`. If `false`, the `classToToggle` will be removed from
-   *           the `element`. If `undefined`, the callback will be ignored.
-   */
-
-  /**
-   * Adds or removes a class name to/from an element depending on an optional
-   * condition or the presence/absence of the class name.
-   *
-   * @param  {Element} element
-   *         The element to toggle a class name on.
-   *
-   * @param  {string} classToToggle
-   *         The class that should be toggled.
-   *
-   * @param  {boolean|module:dom~PredicateCallback} [predicate]
-   *         See the return value for {@link module:dom~PredicateCallback}
-   *
-   * @return {Element}
-   *         The element with a class that has been toggled.
-   */
-
-  function toggleClass(element, classToToggle, predicate) {
-    // This CANNOT use `classList` internally because IE11 does not support the
-    // second parameter to the `classList.toggle()` method! Which is fine because
-    // `classList` will be used by the add/remove functions.
-    var has = hasClass(element, classToToggle);
-
-    if (typeof predicate === 'function') {
-      predicate = predicate(element, classToToggle);
-    }
-
-    if (typeof predicate !== 'boolean') {
-      predicate = !has;
-    } // If the necessary class operation matches the current state of the
-    // element, no action is required.
-
-
-    if (predicate === has) {
-      return;
-    }
-
-    if (predicate) {
-      addClass(element, classToToggle);
-    } else {
-      removeClass(element, classToToggle);
-    }
-
-    return element;
-  }
-  /**
-   * Apply attributes to an HTML element.
-   *
-   * @param {Element} el
-   *        Element to add attributes to.
-   *
-   * @param {Object} [attributes]
-   *        Attributes to be applied.
-   */
-
-  function setAttributes(el, attributes) {
-    Object.getOwnPropertyNames(attributes).forEach(function (attrName) {
-      var attrValue = attributes[attrName];
-
-      if (attrValue === null || typeof attrValue === 'undefined' || attrValue === false) {
-        el.removeAttribute(attrName);
-      } else {
-        el.setAttribute(attrName, attrValue === true ? '' : attrValue);
-      }
-    });
-  }
-  /**
-   * Get an element's attribute values, as defined on the HTML tag.
-   *
-   * Attributes are not the same as properties. They're defined on the tag
-   * or with setAttribute.
-   *
-   * @param  {Element} tag
-   *         Element from which to get tag attributes.
-   *
-   * @return {Object}
-   *         All attributes of the element. Boolean attributes will be `true` or
-   *         `false`, others will be strings.
-   */
-
-  function getAttributes(tag) {
-    var obj = {}; // known boolean attributes
-    // we can check for matching boolean properties, but not all browsers
-    // and not all tags know about these attributes, so, we still want to check them manually
-
-    var knownBooleans = ',' + 'autoplay,controls,playsinline,loop,muted,default,defaultMuted' + ',';
-
-    if (tag && tag.attributes && tag.attributes.length > 0) {
-      var attrs = tag.attributes;
-
-      for (var i = attrs.length - 1; i >= 0; i--) {
-        var attrName = attrs[i].name;
-        var attrVal = attrs[i].value; // check for known booleans
-        // the matching element property will return a value for typeof
-
-        if (typeof tag[attrName] === 'boolean' || knownBooleans.indexOf(',' + attrName + ',') !== -1) {
-          // the value of an included boolean attribute is typically an empty
-          // string ('') which would equal false if we just check for a false value.
-          // we also don't want support bad code like autoplay='false'
-          attrVal = attrVal !== null ? true : false;
-        }
-
-        obj[attrName] = attrVal;
-      }
-    }
-
-    return obj;
-  }
-  /**
-   * Get the value of an element's attribute.
-   *
-   * @param {Element} el
-   *        A DOM element.
-   *
-   * @param {string} attribute
-   *        Attribute to get the value of.
-   *
-   * @return {string}
-   *         The value of the attribute.
-   */
-
-  function getAttribute(el, attribute) {
-    return el.getAttribute(attribute);
-  }
-  /**
-   * Set the value of an element's attribute.
-   *
-   * @param {Element} el
-   *        A DOM element.
-   *
-   * @param {string} attribute
-   *        Attribute to set.
-   *
-   * @param {string} value
-   *        Value to set the attribute to.
-   */
-
-  function setAttribute(el, attribute, value) {
-    el.setAttribute(attribute, value);
-  }
-  /**
-   * Remove an element's attribute.
-   *
-   * @param {Element} el
-   *        A DOM element.
-   *
-   * @param {string} attribute
-   *        Attribute to remove.
-   */
-
-  function removeAttribute(el, attribute) {
-    el.removeAttribute(attribute);
-  }
-  /**
-   * Attempt to block the ability to select text.
-   */
-
-  function blockTextSelection() {
-    document.body.focus();
-
-    document.onselectstart = function () {
-      return false;
-    };
-  }
-  /**
-   * Turn off text selection blocking.
-   */
-
-  function unblockTextSelection() {
-    document.onselectstart = function () {
-      return true;
-    };
-  }
-  /**
-   * Identical to the native `getBoundingClientRect` function, but ensures that
-   * the method is supported at all (it is in all browsers we claim to support)
-   * and that the element is in the DOM before continuing.
-   *
-   * This wrapper function also shims properties which are not provided by some
-   * older browsers (namely, IE8).
-   *
-   * Additionally, some browsers do not support adding properties to a
-   * `ClientRect`/`DOMRect` object; so, we shallow-copy it with the standard
-   * properties (except `x` and `y` which are not widely supported). This helps
-   * avoid implementations where keys are non-enumerable.
-   *
-   * @param  {Element} el
-   *         Element whose `ClientRect` we want to calculate.
-   *
-   * @return {Object|undefined}
-   *         Always returns a plain object - or `undefined` if it cannot.
-   */
-
-  function getBoundingClientRect(el) {
-    if (el && el.getBoundingClientRect && el.parentNode) {
-      var rect = el.getBoundingClientRect();
-      var result = {};
-      ['bottom', 'height', 'left', 'right', 'top', 'width'].forEach(function (k) {
-        if (rect[k] !== undefined) {
-          result[k] = rect[k];
-        }
-      });
-
-      if (!result.height) {
-        result.height = parseFloat(computedStyle(el, 'height'));
-      }
-
-      if (!result.width) {
-        result.width = parseFloat(computedStyle(el, 'width'));
-      }
-
-      return result;
-    }
-  }
-  /**
-   * Represents the position of a DOM element on the page.
-   *
-   * @typedef  {Object} module:dom~Position
-   *
-   * @property {number} left
-   *           Pixels to the left.
-   *
-   * @property {number} top
-   *           Pixels from the top.
-   */
-
-  /**
-   * Get the position of an element in the DOM.
-   *
-   * Uses `getBoundingClientRect` technique from John Resig.
-   *
-   * @see http://ejohn.org/blog/getboundingclientrect-is-awesome/
-   *
-   * @param  {Element} el
-   *         Element from which to get offset.
-   *
-   * @return {module:dom~Position}
-   *         The position of the element that was passed in.
-   */
-
-  function findPosition(el) {
-    if (!el || el && !el.offsetParent) {
-      return {
-        left: 0,
-        top: 0,
-        width: 0,
-        height: 0
-      };
-    }
-
-    var width = el.offsetWidth;
-    var height = el.offsetHeight;
-    var left = 0;
-    var top = 0;
-
-    while (el.offsetParent && el !== document[FullscreenApi.fullscreenElement]) {
-      left += el.offsetLeft;
-      top += el.offsetTop;
-      el = el.offsetParent;
-    }
-
-    return {
-      left: left,
-      top: top,
-      width: width,
-      height: height
-    };
-  }
-  /**
-   * Represents x and y coordinates for a DOM element or mouse pointer.
-   *
-   * @typedef  {Object} module:dom~Coordinates
-   *
-   * @property {number} x
-   *           x coordinate in pixels
-   *
-   * @property {number} y
-   *           y coordinate in pixels
-   */
-
-  /**
-   * Get the pointer position within an element.
-   *
-   * The base on the coordinates are the bottom left of the element.
-   *
-   * @param  {Element} el
-   *         Element on which to get the pointer position on.
-   *
-   * @param  {EventTarget~Event} event
-   *         Event object.
-   *
-   * @return {module:dom~Coordinates}
-   *         A coordinates object corresponding to the mouse position.
-   *
-   */
-
-  function getPointerPosition(el, event) {
-    var translated = {
-      x: 0,
-      y: 0
-    };
-
-    if (IS_IOS) {
-      var item = el;
-
-      while (item && item.nodeName.toLowerCase() !== 'html') {
-        var transform = computedStyle(item, 'transform');
-
-        if (/^matrix/.test(transform)) {
-          var values = transform.slice(7, -1).split(/,\s/).map(Number);
-          translated.x += values[4];
-          translated.y += values[5];
-        } else if (/^matrix3d/.test(transform)) {
-          var _values = transform.slice(9, -1).split(/,\s/).map(Number);
-
-          translated.x += _values[12];
-          translated.y += _values[13];
-        }
-
-        item = item.parentNode;
-      }
-    }
-
-    var position = {};
-    var boxTarget = findPosition(event.target);
-    var box = findPosition(el);
-    var boxW = box.width;
-    var boxH = box.height;
-    var offsetY = event.offsetY - (box.top - boxTarget.top);
-    var offsetX = event.offsetX - (box.left - boxTarget.left);
-
-    if (event.changedTouches) {
-      offsetX = event.changedTouches[0].pageX - box.left;
-      offsetY = event.changedTouches[0].pageY + box.top;
-
-      if (IS_IOS) {
-        offsetX -= translated.x;
-        offsetY -= translated.y;
-      }
-    }
-
-    position.y = 1 - Math.max(0, Math.min(1, offsetY / boxH));
-    position.x = Math.max(0, Math.min(1, offsetX / boxW));
-    return position;
-  }
-  /**
-   * Determines, via duck typing, whether or not a value is a text node.
-   *
-   * @param  {Mixed} value
-   *         Check if this value is a text node.
-   *
-   * @return {boolean}
-   *         Will be `true` if the value is a text node, `false` otherwise.
-   */
-
-  function isTextNode(value) {
-    return isObject$1(value) && value.nodeType === 3;
-  }
-  /**
-   * Empties the contents of an element.
-   *
-   * @param  {Element} el
-   *         The element to empty children from
-   *
-   * @return {Element}
-   *         The element with no children
-   */
-
-  function emptyEl(el) {
-    while (el.firstChild) {
-      el.removeChild(el.firstChild);
-    }
-
-    return el;
-  }
-  /**
-   * This is a mixed value that describes content to be injected into the DOM
-   * via some method. It can be of the following types:
-   *
-   * Type       | Description
-   * -----------|-------------
-   * `string`   | The value will be normalized into a text node.
-   * `Element`  | The value will be accepted as-is.
-   * `TextNode` | The value will be accepted as-is.
-   * `Array`    | A one-dimensional array of strings, elements, text nodes, or functions. These functions should return a string, element, or text node (any other return value, like an array, will be ignored).
-   * `Function` | A function, which is expected to return a string, element, text node, or array - any of the other possible values described above. This means that a content descriptor could be a function that returns an array of functions, but those second-level functions must return strings, elements, or text nodes.
-   *
-   * @typedef {string|Element|TextNode|Array|Function} module:dom~ContentDescriptor
-   */
-
-  /**
-   * Normalizes content for eventual insertion into the DOM.
-   *
-   * This allows a wide range of content definition methods, but helps protect
-   * from falling into the trap of simply writing to `innerHTML`, which could
-   * be an XSS concern.
-   *
-   * The content for an element can be passed in multiple types and
-   * combinations, whose behavior is as follows:
-   *
-   * @param {module:dom~ContentDescriptor} content
-   *        A content descriptor value.
-   *
-   * @return {Array}
-   *         All of the content that was passed in, normalized to an array of
-   *         elements or text nodes.
-   */
-
-  function normalizeContent(content) {
-    // First, invoke content if it is a function. If it produces an array,
-    // that needs to happen before normalization.
-    if (typeof content === 'function') {
-      content = content();
-    } // Next up, normalize to an array, so one or many items can be normalized,
-    // filtered, and returned.
-
-
-    return (Array.isArray(content) ? content : [content]).map(function (value) {
-      // First, invoke value if it is a function to produce a new value,
-      // which will be subsequently normalized to a Node of some kind.
-      if (typeof value === 'function') {
-        value = value();
-      }
-
-      if (isEl(value) || isTextNode(value)) {
-        return value;
-      }
-
-      if (typeof value === 'string' && /\S/.test(value)) {
-        return document.createTextNode(value);
-      }
-    }).filter(function (value) {
-      return value;
-    });
-  }
-  /**
-   * Normalizes and appends content to an element.
-   *
-   * @param  {Element} el
-   *         Element to append normalized content to.
-   *
-   * @param {module:dom~ContentDescriptor} content
-   *        A content descriptor value.
-   *
-   * @return {Element}
-   *         The element with appended normalized content.
-   */
-
-  function appendContent(el, content) {
-    normalizeContent(content).forEach(function (node) {
-      return el.appendChild(node);
-    });
-    return el;
-  }
-  /**
-   * Normalizes and inserts content into an element; this is identical to
-   * `appendContent()`, except it empties the element first.
-   *
-   * @param {Element} el
-   *        Element to insert normalized content into.
-   *
-   * @param {module:dom~ContentDescriptor} content
-   *        A content descriptor value.
-   *
-   * @return {Element}
-   *         The element with inserted normalized content.
-   */
-
-  function insertContent(el, content) {
-    return appendContent(emptyEl(el), content);
-  }
-  /**
-   * Check if an event was a single left click.
-   *
-   * @param  {EventTarget~Event} event
-   *         Event object.
-   *
-   * @return {boolean}
-   *         Will be `true` if a single left click, `false` otherwise.
-   */
-
-  function isSingleLeftClick(event) {
-    // Note: if you create something draggable, be sure to
-    // call it on both `mousedown` and `mousemove` event,
-    // otherwise `mousedown` should be enough for a button
-    if (event.button === undefined && event.buttons === undefined) {
-      // Why do we need `buttons` ?
-      // Because, middle mouse sometimes have this:
-      // e.button === 0 and e.buttons === 4
-      // Furthermore, we want to prevent combination click, something like
-      // HOLD middlemouse then left click, that would be
-      // e.button === 0, e.buttons === 5
-      // just `button` is not gonna work
-      // Alright, then what this block does ?
-      // this is for chrome `simulate mobile devices`
-      // I want to support this as well
-      return true;
-    }
-
-    if (event.button === 0 && event.buttons === undefined) {
-      // Touch screen, sometimes on some specific device, `buttons`
-      // doesn't have anything (safari on ios, blackberry...)
-      return true;
-    } // `mouseup` event on a single left click has
-    // `button` and `buttons` equal to 0
-
-
-    if (event.type === 'mouseup' && event.button === 0 && event.buttons === 0) {
-      return true;
-    }
-
-    if (event.button !== 0 || event.buttons !== 1) {
-      // This is the reason we have those if else block above
-      // if any special case we can catch and let it slide
-      // we do it above, when get to here, this definitely
-      // is-not-left-click
-      return false;
-    }
-
-    return true;
-  }
-  /**
-   * Finds a single DOM element matching `selector` within the optional
-   * `context` of another DOM element (defaulting to `document`).
-   *
-   * @param  {string} selector
-   *         A valid CSS selector, which will be passed to `querySelector`.
-   *
-   * @param  {Element|String} [context=document]
-   *         A DOM element within which to query. Can also be a selector
-   *         string in which case the first matching element will be used
-   *         as context. If missing (or no element matches selector), falls
-   *         back to `document`.
-   *
-   * @return {Element|null}
-   *         The element that was found or null.
-   */
-
-  var $ = createQuerier('querySelector');
-  /**
-   * Finds a all DOM elements matching `selector` within the optional
-   * `context` of another DOM element (defaulting to `document`).
-   *
-   * @param  {string} selector
-   *         A valid CSS selector, which will be passed to `querySelectorAll`.
-   *
-   * @param  {Element|String} [context=document]
-   *         A DOM element within which to query. Can also be a selector
-   *         string in which case the first matching element will be used
-   *         as context. If missing (or no element matches selector), falls
-   *         back to `document`.
-   *
-   * @return {NodeList}
-   *         A element list of elements that were found. Will be empty if none
-   *         were found.
-   *
-   */
-
-  var $$ = createQuerier('querySelectorAll');
-
-  var Dom = /*#__PURE__*/Object.freeze({
-    __proto__: null,
-    isReal: isReal,
-    isEl: isEl,
-    isInFrame: isInFrame,
-    createEl: createEl,
-    textContent: textContent,
-    prependTo: prependTo,
-    hasClass: hasClass,
-    addClass: addClass,
-    removeClass: removeClass,
-    toggleClass: toggleClass,
-    setAttributes: setAttributes,
-    getAttributes: getAttributes,
-    getAttribute: getAttribute,
-    setAttribute: setAttribute,
-    removeAttribute: removeAttribute,
-    blockTextSelection: blockTextSelection,
-    unblockTextSelection: unblockTextSelection,
-    getBoundingClientRect: getBoundingClientRect,
-    findPosition: findPosition,
-    getPointerPosition: getPointerPosition,
-    isTextNode: isTextNode,
-    emptyEl: emptyEl,
-    normalizeContent: normalizeContent,
-    appendContent: appendContent,
-    insertContent: insertContent,
-    isSingleLeftClick: isSingleLeftClick,
-    $: $,
-    $$: $$
-  });
-
-  /**
-   * @file setup.js - Functions for setting up a player without
-   * user interaction based on the data-setup `attribute` of the video tag.
-   *
-   * @module setup
-   */
-  var _windowLoaded = false;
-  var videojs$1;
-  /**
-   * Set up any tags that have a data-setup `attribute` when the player is started.
-   */
-
-  var autoSetup = function autoSetup() {
-    if (videojs$1.options.autoSetup === false) {
-      return;
-    }
-
-    var vids = Array.prototype.slice.call(document.getElementsByTagName('video'));
-    var audios = Array.prototype.slice.call(document.getElementsByTagName('audio'));
-    var divs = Array.prototype.slice.call(document.getElementsByTagName('video-js'));
-    var mediaEls = vids.concat(audios, divs); // Check if any media elements exist
-
-    if (mediaEls && mediaEls.length > 0) {
-      for (var i = 0, e = mediaEls.length; i < e; i++) {
-        var mediaEl = mediaEls[i]; // Check if element exists, has getAttribute func.
-
-        if (mediaEl && mediaEl.getAttribute) {
-          // Make sure this player hasn't already been set up.
-          if (mediaEl.player === undefined) {
-            var options = mediaEl.getAttribute('data-setup'); // Check if data-setup attr exists.
-            // We only auto-setup if they've added the data-setup attr.
-
-            if (options !== null) {
-              // Create new video.js instance.
-              videojs$1(mediaEl);
-            }
-          } // If getAttribute isn't defined, we need to wait for the DOM.
-
-        } else {
-          autoSetupTimeout(1);
-          break;
-        }
-      } // No videos were found, so keep looping unless page is finished loading.
-
-    } else if (!_windowLoaded) {
-      autoSetupTimeout(1);
-    }
-  };
-  /**
-   * Wait until the page is loaded before running autoSetup. This will be called in
-   * autoSetup if `hasLoaded` returns false.
-   *
-   * @param {number} wait
-   *        How long to wait in ms
-   *
-   * @param {module:videojs} [vjs]
-   *        The videojs library function
-   */
-
-
-  function autoSetupTimeout(wait, vjs) {
-    // Protect against breakage in non-browser environments
-    if (!isReal()) {
-      return;
-    }
-
-    if (vjs) {
-      videojs$1 = vjs;
-    }
-
-    window.setTimeout(autoSetup, wait);
-  }
-  /**
-   * Used to set the internal tracking of window loaded state to true.
-   *
-   * @private
-   */
-
-
-  function setWindowLoaded() {
-    _windowLoaded = true;
-    window.removeEventListener('load', setWindowLoaded);
-  }
-
-  if (isReal()) {
-    if (document.readyState === 'complete') {
-      setWindowLoaded();
-    } else {
-      /**
-       * Listen for the load event on window, and set _windowLoaded to true.
-       *
-       * We use a standard event listener here to avoid incrementing the GUID
-       * before any players are created.
-       *
-       * @listens load
-       */
-      window.addEventListener('load', setWindowLoaded);
-    }
-  }
-
-  /**
-   * @file stylesheet.js
-   * @module stylesheet
-   */
-
-  /**
-   * Create a DOM syle element given a className for it.
-   *
-   * @param {string} className
-   *        The className to add to the created style element.
-   *
-   * @return {Element}
-   *         The element that was created.
-   */
-  var createStyleElement = function createStyleElement(className) {
-    var style = document.createElement('style');
-    style.className = className;
-    return style;
-  };
-  /**
-   * Add text to a DOM element.
-   *
-   * @param {Element} el
-   *        The Element to add text content to.
-   *
-   * @param {string} content
-   *        The text to add to the element.
-   */
-
-  var setTextContent = function setTextContent(el, content) {
-    if (el.styleSheet) {
-      el.styleSheet.cssText = content;
-    } else {
-      el.textContent = content;
-    }
-  };
-
-  /**
-   * @file guid.js
-   * @module guid
-   */
-  // Default value for GUIDs. This allows us to reset the GUID counter in tests.
-  //
-  // The initial GUID is 3 because some users have come to rely on the first
-  // default player ID ending up as `vjs_video_3`.
-  //
-  // See: https://github.com/videojs/video.js/pull/6216
-  var _initialGuid = 3;
-  /**
-   * Unique ID for an element or function
-   *
-   * @type {Number}
-   */
-
-  var _guid = _initialGuid;
-  /**
-   * Get a unique auto-incrementing ID by number that has not been returned before.
-   *
-   * @return {number}
-   *         A new unique ID.
-   */
-
-  function newGUID() {
-    return _guid++;
-  }
-
-  /**
-   * @file dom-data.js
-   * @module dom-data
-   */
-  var FakeWeakMap;
-
-  if (!window.WeakMap) {
-    FakeWeakMap = /*#__PURE__*/function () {
-      function FakeWeakMap() {
-        this.vdata = 'vdata' + Math.floor(window.performance && window.performance.now() || Date.now());
-        this.data = {};
-      }
-
-      var _proto = FakeWeakMap.prototype;
-
-      _proto.set = function set(key, value) {
-        var access = key[this.vdata] || newGUID();
-
-        if (!key[this.vdata]) {
-          key[this.vdata] = access;
-        }
-
-        this.data[access] = value;
-        return this;
-      };
-
-      _proto.get = function get(key) {
-        var access = key[this.vdata]; // we have data, return it
-
-        if (access) {
-          return this.data[access];
-        } // we don't have data, return nothing.
-        // return undefined explicitly as that's the contract for this method
-
-
-        log$1('We have no data for this element', key);
-        return undefined;
-      };
-
-      _proto.has = function has(key) {
-        var access = key[this.vdata];
-        return access in this.data;
-      };
-
-      _proto["delete"] = function _delete(key) {
-        var access = key[this.vdata];
-
-        if (access) {
-          delete this.data[access];
-          delete key[this.vdata];
-        }
-      };
-
-      return FakeWeakMap;
-    }();
-  }
-  /**
-   * Element Data Store.
-   *
-   * Allows for binding data to an element without putting it directly on the
-   * element. Ex. Event listeners are stored here.
-   * (also from jsninja.com, slightly modified and updated for closure compiler)
-   *
-   * @type {Object}
-   * @private
-   */
-
-
-  var DomData = window.WeakMap ? new WeakMap() : new FakeWeakMap();
-
-  /**
-   * @file events.js. An Event System (John Resig - Secrets of a JS Ninja http://jsninja.com/)
-   * (Original book version wasn't completely usable, so fixed some things and made Closure Compiler compatible)
-   * This should work very similarly to jQuery's events, however it's based off the book version which isn't as
-   * robust as jquery's, so there's probably some differences.
-   *
-   * @file events.js
-   * @module events
-   */
-  /**
-   * Clean up the listener cache and dispatchers
-   *
-   * @param {Element|Object} elem
-   *        Element to clean up
-   *
-   * @param {string} type
-   *        Type of event to clean up
-   */
-
-  function _cleanUpEvents(elem, type) {
-    if (!DomData.has(elem)) {
-      return;
-    }
-
-    var data = DomData.get(elem); // Remove the events of a particular type if there are none left
-
-    if (data.handlers[type].length === 0) {
-      delete data.handlers[type]; // data.handlers[type] = null;
-      // Setting to null was causing an error with data.handlers
-      // Remove the meta-handler from the element
-
-      if (elem.removeEventListener) {
-        elem.removeEventListener(type, data.dispatcher, false);
-      } else if (elem.detachEvent) {
-        elem.detachEvent('on' + type, data.dispatcher);
-      }
-    } // Remove the events object if there are no types left
-
-
-    if (Object.getOwnPropertyNames(data.handlers).length <= 0) {
-      delete data.handlers;
-      delete data.dispatcher;
-      delete data.disabled;
-    } // Finally remove the element data if there is no data left
-
-
-    if (Object.getOwnPropertyNames(data).length === 0) {
-      DomData["delete"](elem);
-    }
-  }
-  /**
-   * Loops through an array of event types and calls the requested method for each type.
-   *
-   * @param {Function} fn
-   *        The event method we want to use.
-   *
-   * @param {Element|Object} elem
-   *        Element or object to bind listeners to
-   *
-   * @param {string} type
-   *        Type of event to bind to.
-   *
-   * @param {EventTarget~EventListener} callback
-   *        Event listener.
-   */
-
-
-  function _handleMultipleEvents(fn, elem, types, callback) {
-    types.forEach(function (type) {
-      // Call the event method for each one of the types
-      fn(elem, type, callback);
-    });
-  }
-  /**
-   * Fix a native event to have standard property values
-   *
-   * @param {Object} event
-   *        Event object to fix.
-   *
-   * @return {Object}
-   *         Fixed event object.
-   */
-
-
-  function fixEvent(event) {
-    if (event.fixed_) {
-      return event;
-    }
-
-    function returnTrue() {
-      return true;
-    }
-
-    function returnFalse() {
-      return false;
-    } // Test if fixing up is needed
-    // Used to check if !event.stopPropagation instead of isPropagationStopped
-    // But native events return true for stopPropagation, but don't have
-    // other expected methods like isPropagationStopped. Seems to be a problem
-    // with the Javascript Ninja code. So we're just overriding all events now.
-
-
-    if (!event || !event.isPropagationStopped || !event.isImmediatePropagationStopped) {
-      var old = event || window.event;
-      event = {}; // Clone the old object so that we can modify the values event = {};
-      // IE8 Doesn't like when you mess with native event properties
-      // Firefox returns false for event.hasOwnProperty('type') and other props
-      //  which makes copying more difficult.
-      // TODO: Probably best to create a whitelist of event props
-
-      for (var key in old) {
-        // Safari 6.0.3 warns you if you try to copy deprecated layerX/Y
-        // Chrome warns you if you try to copy deprecated keyboardEvent.keyLocation
-        // and webkitMovementX/Y
-        // Lighthouse complains if Event.path is copied
-        if (key !== 'layerX' && key !== 'layerY' && key !== 'keyLocation' && key !== 'webkitMovementX' && key !== 'webkitMovementY' && key !== 'path') {
-          // Chrome 32+ warns if you try to copy deprecated returnValue, but
-          // we still want to if preventDefault isn't supported (IE8).
-          if (!(key === 'returnValue' && old.preventDefault)) {
-            event[key] = old[key];
-          }
-        }
-      } // The event occurred on this element
-
-
-      if (!event.target) {
-        event.target = event.srcElement || document;
-      } // Handle which other element the event is related to
-
-
-      if (!event.relatedTarget) {
-        event.relatedTarget = event.fromElement === event.target ? event.toElement : event.fromElement;
-      } // Stop the default browser action
-
-
-      event.preventDefault = function () {
-        if (old.preventDefault) {
-          old.preventDefault();
-        }
-
-        event.returnValue = false;
-        old.returnValue = false;
-        event.defaultPrevented = true;
-      };
-
-      event.defaultPrevented = false; // Stop the event from bubbling
-
-      event.stopPropagation = function () {
-        if (old.stopPropagation) {
-          old.stopPropagation();
-        }
-
-        event.cancelBubble = true;
-        old.cancelBubble = true;
-        event.isPropagationStopped = returnTrue;
-      };
-
-      event.isPropagationStopped = returnFalse; // Stop the event from bubbling and executing other handlers
-
-      event.stopImmediatePropagation = function () {
-        if (old.stopImmediatePropagation) {
-          old.stopImmediatePropagation();
-        }
-
-        event.isImmediatePropagationStopped = returnTrue;
-        event.stopPropagation();
-      };
-
-      event.isImmediatePropagationStopped = returnFalse; // Handle mouse position
-
-      if (event.clientX !== null && event.clientX !== undefined) {
-        var doc = document.documentElement;
-        var body = document.body;
-        event.pageX = event.clientX + (doc && doc.scrollLeft || body && body.scrollLeft || 0) - (doc && doc.clientLeft || body && body.clientLeft || 0);
-        event.pageY = event.clientY + (doc && doc.scrollTop || body && body.scrollTop || 0) - (doc && doc.clientTop || body && body.clientTop || 0);
-      } // Handle key presses
-
-
-      event.which = event.charCode || event.keyCode; // Fix button for mouse clicks:
-      // 0 == left; 1 == middle; 2 == right
-
-      if (event.button !== null && event.button !== undefined) {
-        // The following is disabled because it does not pass videojs-standard
-        // and... yikes.
-
-        /* eslint-disable */
-        event.button = event.button & 1 ? 0 : event.button & 4 ? 1 : event.button & 2 ? 2 : 0;
-        /* eslint-enable */
-      }
-    }
-
-    event.fixed_ = true; // Returns fixed-up instance
-
-    return event;
-  }
-  /**
-   * Whether passive event listeners are supported
-   */
-
-  var _supportsPassive;
-
-  var supportsPassive = function supportsPassive() {
-    if (typeof _supportsPassive !== 'boolean') {
-      _supportsPassive = false;
-
-      try {
-        var opts = Object.defineProperty({}, 'passive', {
-          get: function get() {
-            _supportsPassive = true;
-          }
-        });
-        window.addEventListener('test', null, opts);
-        window.removeEventListener('test', null, opts);
-      } catch (e) {// disregard
-      }
-    }
-
-    return _supportsPassive;
-  };
-  /**
-   * Touch events Chrome expects to be passive
-   */
-
-
-  var passiveEvents = ['touchstart', 'touchmove'];
-  /**
-   * Add an event listener to element
-   * It stores the handler function in a separate cache object
-   * and adds a generic handler to the element's event,
-   * along with a unique id (guid) to the element.
-   *
-   * @param {Element|Object} elem
-   *        Element or object to bind listeners to
-   *
-   * @param {string|string[]} type
-   *        Type of event to bind to.
-   *
-   * @param {EventTarget~EventListener} fn
-   *        Event listener.
-   */
-
-  function on(elem, type, fn) {
-    if (Array.isArray(type)) {
-      return _handleMultipleEvents(on, elem, type, fn);
-    }
-
-    if (!DomData.has(elem)) {
-      DomData.set(elem, {});
-    }
-
-    var data = DomData.get(elem); // We need a place to store all our handler data
-
-    if (!data.handlers) {
-      data.handlers = {};
-    }
-
-    if (!data.handlers[type]) {
-      data.handlers[type] = [];
-    }
-
-    if (!fn.guid) {
-      fn.guid = newGUID();
-    }
-
-    data.handlers[type].push(fn);
-
-    if (!data.dispatcher) {
-      data.disabled = false;
-
-      data.dispatcher = function (event, hash) {
-        if (data.disabled) {
-          return;
-        }
-
-        event = fixEvent(event);
-        var handlers = data.handlers[event.type];
-
-        if (handlers) {
-          // Copy handlers so if handlers are added/removed during the process it doesn't throw everything off.
-          var handlersCopy = handlers.slice(0);
-
-          for (var m = 0, n = handlersCopy.length; m < n; m++) {
-            if (event.isImmediatePropagationStopped()) {
-              break;
-            } else {
-              try {
-                handlersCopy[m].call(elem, event, hash);
-              } catch (e) {
-                log$1.error(e);
-              }
-            }
-          }
-        }
-      };
-    }
-
-    if (data.handlers[type].length === 1) {
-      if (elem.addEventListener) {
-        var options = false;
-
-        if (supportsPassive() && passiveEvents.indexOf(type) > -1) {
-          options = {
-            passive: true
-          };
-        }
-
-        elem.addEventListener(type, data.dispatcher, options);
-      } else if (elem.attachEvent) {
-        elem.attachEvent('on' + type, data.dispatcher);
-      }
-    }
-  }
-  /**
-   * Removes event listeners from an element
-   *
-   * @param {Element|Object} elem
-   *        Object to remove listeners from.
-   *
-   * @param {string|string[]} [type]
-   *        Type of listener to remove. Don't include to remove all events from element.
-   *
-   * @param {EventTarget~EventListener} [fn]
-   *        Specific listener to remove. Don't include to remove listeners for an event
-   *        type.
-   */
-
-  function off(elem, type, fn) {
-    // Don't want to add a cache object through getElData if not needed
-    if (!DomData.has(elem)) {
-      return;
-    }
-
-    var data = DomData.get(elem); // If no events exist, nothing to unbind
-
-    if (!data.handlers) {
-      return;
-    }
-
-    if (Array.isArray(type)) {
-      return _handleMultipleEvents(off, elem, type, fn);
-    } // Utility function
-
-
-    var removeType = function removeType(el, t) {
-      data.handlers[t] = [];
-
-      _cleanUpEvents(el, t);
-    }; // Are we removing all bound events?
-
-
-    if (type === undefined) {
-      for (var t in data.handlers) {
-        if (Object.prototype.hasOwnProperty.call(data.handlers || {}, t)) {
-          removeType(elem, t);
-        }
-      }
-
-      return;
-    }
-
-    var handlers = data.handlers[type]; // If no handlers exist, nothing to unbind
-
-    if (!handlers) {
-      return;
-    } // If no listener was provided, remove all listeners for type
-
-
-    if (!fn) {
-      removeType(elem, type);
-      return;
-    } // We're only removing a single handler
-
-
-    if (fn.guid) {
-      for (var n = 0; n < handlers.length; n++) {
-        if (handlers[n].guid === fn.guid) {
-          handlers.splice(n--, 1);
-        }
-      }
-    }
-
-    _cleanUpEvents(elem, type);
-  }
-  /**
-   * Trigger an event for an element
-   *
-   * @param {Element|Object} elem
-   *        Element to trigger an event on
-   *
-   * @param {EventTarget~Event|string} event
-   *        A string (the type) or an event object with a type attribute
-   *
-   * @param {Object} [hash]
-   *        data hash to pass along with the event
-   *
-   * @return {boolean|undefined}
-   *         Returns the opposite of `defaultPrevented` if default was
-   *         prevented. Otherwise, returns `undefined`
-   */
-
-  function trigger(elem, event, hash) {
-    // Fetches element data and a reference to the parent (for bubbling).
-    // Don't want to add a data object to cache for every parent,
-    // so checking hasElData first.
-    var elemData = DomData.has(elem) ? DomData.get(elem) : {};
-    var parent = elem.parentNode || elem.ownerDocument; // type = event.type || event,
-    // handler;
-    // If an event name was passed as a string, creates an event out of it
-
-    if (typeof event === 'string') {
-      event = {
-        type: event,
-        target: elem
-      };
-    } else if (!event.target) {
-      event.target = elem;
-    } // Normalizes the event properties.
-
-
-    event = fixEvent(event); // If the passed element has a dispatcher, executes the established handlers.
-
-    if (elemData.dispatcher) {
-      elemData.dispatcher.call(elem, event, hash);
-    } // Unless explicitly stopped or the event does not bubble (e.g. media events)
-    // recursively calls this function to bubble the event up the DOM.
-
-
-    if (parent && !event.isPropagationStopped() && event.bubbles === true) {
-      trigger.call(null, parent, event, hash); // If at the top of the DOM, triggers the default action unless disabled.
-    } else if (!parent && !event.defaultPrevented && event.target && event.target[event.type]) {
-      if (!DomData.has(event.target)) {
-        DomData.set(event.target, {});
-      }
-
-      var targetData = DomData.get(event.target); // Checks if the target has a default action for this event.
-
-      if (event.target[event.type]) {
-        // Temporarily disables event dispatching on the target as we have already executed the handler.
-        targetData.disabled = true; // Executes the default action.
-
-        if (typeof event.target[event.type] === 'function') {
-          event.target[event.type]();
-        } // Re-enables event dispatching.
-
-
-        targetData.disabled = false;
-      }
-    } // Inform the triggerer if the default was prevented by returning false
-
-
-    return !event.defaultPrevented;
-  }
-  /**
-   * Trigger a listener only once for an event.
-   *
-   * @param {Element|Object} elem
-   *        Element or object to bind to.
-   *
-   * @param {string|string[]} type
-   *        Name/type of event
-   *
-   * @param {Event~EventListener} fn
-   *        Event listener function
-   */
-
-  function one(elem, type, fn) {
-    if (Array.isArray(type)) {
-      return _handleMultipleEvents(one, elem, type, fn);
-    }
-
-    var func = function func() {
-      off(elem, type, func);
-      fn.apply(this, arguments);
-    }; // copy the guid to the new function so it can removed using the original function's ID
-
-
-    func.guid = fn.guid = fn.guid || newGUID();
-    on(elem, type, func);
-  }
-  /**
-   * Trigger a listener only once and then turn if off for all
-   * configured events
-   *
-   * @param {Element|Object} elem
-   *        Element or object to bind to.
-   *
-   * @param {string|string[]} type
-   *        Name/type of event
-   *
-   * @param {Event~EventListener} fn
-   *        Event listener function
-   */
-
-  function any(elem, type, fn) {
-    var func = function func() {
-      off(elem, type, func);
-      fn.apply(this, arguments);
-    }; // copy the guid to the new function so it can removed using the original function's ID
-
-
-    func.guid = fn.guid = fn.guid || newGUID(); // multiple ons, but one off for everything
-
-    on(elem, type, func);
-  }
-
-  var Events = /*#__PURE__*/Object.freeze({
-    __proto__: null,
-    fixEvent: fixEvent,
-    on: on,
-    off: off,
-    trigger: trigger,
-    one: one,
-    any: any
-  });
-
-  /**
-   * @file fn.js
-   * @module fn
-   */
-  var UPDATE_REFRESH_INTERVAL = 30;
-  /**
-   * Bind (a.k.a proxy or context). A simple method for changing the context of
-   * a function.
-   *
-   * It also stores a unique id on the function so it can be easily removed from
-   * events.
-   *
-   * @function
-   * @param    {Mixed} context
-   *           The object to bind as scope.
-   *
-   * @param    {Function} fn
-   *           The function to be bound to a scope.
-   *
-   * @param    {number} [uid]
-   *           An optional unique ID for the function to be set
-   *
-   * @return   {Function}
-   *           The new function that will be bound into the context given
-   */
-
-  var bind = function bind(context, fn, uid) {
-    // Make sure the function has a unique ID
-    if (!fn.guid) {
-      fn.guid = newGUID();
-    } // Create the new function that changes the context
-
-
-    var bound = fn.bind(context); // Allow for the ability to individualize this function
-    // Needed in the case where multiple objects might share the same prototype
-    // IF both items add an event listener with the same function, then you try to remove just one
-    // it will remove both because they both have the same guid.
-    // when using this, you need to use the bind method when you remove the listener as well.
-    // currently used in text tracks
-
-    bound.guid = uid ? uid + '_' + fn.guid : fn.guid;
-    return bound;
-  };
-  /**
-   * Wraps the given function, `fn`, with a new function that only invokes `fn`
-   * at most once per every `wait` milliseconds.
-   *
-   * @function
-   * @param    {Function} fn
-   *           The function to be throttled.
-   *
-   * @param    {number}   wait
-   *           The number of milliseconds by which to throttle.
-   *
-   * @return   {Function}
-   */
-
-  var throttle = function throttle(fn, wait) {
-    var last = window.performance.now();
-
-    var throttled = function throttled() {
-      var now = window.performance.now();
-
-      if (now - last >= wait) {
-        fn.apply(void 0, arguments);
-        last = now;
-      }
-    };
-
-    return throttled;
-  };
-  /**
-   * Creates a debounced function that delays invoking `func` until after `wait`
-   * milliseconds have elapsed since the last time the debounced function was
-   * invoked.
-   *
-   * Inspired by lodash and underscore implementations.
-   *
-   * @function
-   * @param    {Function} func
-   *           The function to wrap with debounce behavior.
-   *
-   * @param    {number} wait
-   *           The number of milliseconds to wait after the last invocation.
-   *
-   * @param    {boolean} [immediate]
-   *           Whether or not to invoke the function immediately upon creation.
-   *
-   * @param    {Object} [context=window]
-   *           The "context" in which the debounced function should debounce. For
-   *           example, if this function should be tied to a Video.js player,
-   *           the player can be passed here. Alternatively, defaults to the
-   *           global `window` object.
-   *
-   * @return   {Function}
-   *           A debounced function.
-   */
-
-  var debounce = function debounce(func, wait, immediate, context) {
-    if (context === void 0) {
-      context = window;
-    }
-
-    var timeout;
-
-    var cancel = function cancel() {
-      context.clearTimeout(timeout);
-      timeout = null;
-    };
-    /* eslint-disable consistent-this */
-
-
-    var debounced = function debounced() {
-      var self = this;
-      var args = arguments;
-
-      var _later = function later() {
-        timeout = null;
-        _later = null;
-
-        if (!immediate) {
-          func.apply(self, args);
-        }
-      };
-
-      if (!timeout && immediate) {
-        func.apply(self, args);
-      }
-
-      context.clearTimeout(timeout);
-      timeout = context.setTimeout(_later, wait);
-    };
-    /* eslint-enable consistent-this */
-
-
-    debounced.cancel = cancel;
-    return debounced;
-  };
-
-  /**
-   * @file src/js/event-target.js
-   */
-  /**
-   * `EventTarget` is a class that can have the same API as the DOM `EventTarget`. It
-   * adds shorthand functions that wrap around lengthy functions. For example:
-   * the `on` function is a wrapper around `addEventListener`.
-   *
-   * @see [EventTarget Spec]{@link https://www.w3.org/TR/DOM-Level-2-Events/events.html#Events-EventTarget}
-   * @class EventTarget
-   */
-
-  var EventTarget$2 = function EventTarget() {};
-  /**
-   * A Custom DOM event.
-   *
-   * @typedef {Object} EventTarget~Event
-   * @see [Properties]{@link https://developer.mozilla.org/en-US/docs/Web/API/CustomEvent}
-   */
-
-  /**
-   * All event listeners should follow the following format.
-   *
-   * @callback EventTarget~EventListener
-   * @this {EventTarget}
-   *
-   * @param {EventTarget~Event} event
-   *        the event that triggered this function
-   *
-   * @param {Object} [hash]
-   *        hash of data sent during the event
-   */
-
-  /**
-   * An object containing event names as keys and booleans as values.
-   *
-   * > NOTE: If an event name is set to a true value here {@link EventTarget#trigger}
-   *         will have extra functionality. See that function for more information.
-   *
-   * @property EventTarget.prototype.allowedEvents_
-   * @private
-   */
-
-
-  EventTarget$2.prototype.allowedEvents_ = {};
-  /**
-   * Adds an `event listener` to an instance of an `EventTarget`. An `event listener` is a
-   * function that will get called when an event with a certain name gets triggered.
-   *
-   * @param {string|string[]} type
-   *        An event name or an array of event names.
-   *
-   * @param {EventTarget~EventListener} fn
-   *        The function to call with `EventTarget`s
-   */
-
-  EventTarget$2.prototype.on = function (type, fn) {
-    // Remove the addEventListener alias before calling Events.on
-    // so we don't get into an infinite type loop
-    var ael = this.addEventListener;
-
-    this.addEventListener = function () {};
-
-    on(this, type, fn);
-    this.addEventListener = ael;
-  };
-  /**
-   * An alias of {@link EventTarget#on}. Allows `EventTarget` to mimic
-   * the standard DOM API.
-   *
-   * @function
-   * @see {@link EventTarget#on}
-   */
-
-
-  EventTarget$2.prototype.addEventListener = EventTarget$2.prototype.on;
-  /**
-   * Removes an `event listener` for a specific event from an instance of `EventTarget`.
-   * This makes it so that the `event listener` will no longer get called when the
-   * named event happens.
-   *
-   * @param {string|string[]} type
-   *        An event name or an array of event names.
-   *
-   * @param {EventTarget~EventListener} fn
-   *        The function to remove.
-   */
-
-  EventTarget$2.prototype.off = function (type, fn) {
-    off(this, type, fn);
-  };
-  /**
-   * An alias of {@link EventTarget#off}. Allows `EventTarget` to mimic
-   * the standard DOM API.
-   *
-   * @function
-   * @see {@link EventTarget#off}
-   */
-
-
-  EventTarget$2.prototype.removeEventListener = EventTarget$2.prototype.off;
-  /**
-   * This function will add an `event listener` that gets triggered only once. After the
-   * first trigger it will get removed. This is like adding an `event listener`
-   * with {@link EventTarget#on} that calls {@link EventTarget#off} on itself.
-   *
-   * @param {string|string[]} type
-   *        An event name or an array of event names.
-   *
-   * @param {EventTarget~EventListener} fn
-   *        The function to be called once for each event name.
-   */
-
-  EventTarget$2.prototype.one = function (type, fn) {
-    // Remove the addEventListener aliasing Events.on
-    // so we don't get into an infinite type loop
-    var ael = this.addEventListener;
-
-    this.addEventListener = function () {};
-
-    one(this, type, fn);
-    this.addEventListener = ael;
-  };
-
-  EventTarget$2.prototype.any = function (type, fn) {
-    // Remove the addEventListener aliasing Events.on
-    // so we don't get into an infinite type loop
-    var ael = this.addEventListener;
-
-    this.addEventListener = function () {};
-
-    any(this, type, fn);
-    this.addEventListener = ael;
-  };
-  /**
-   * This function causes an event to happen. This will then cause any `event listeners`
-   * that are waiting for that event, to get called. If there are no `event listeners`
-   * for an event then nothing will happen.
-   *
-   * If the name of the `Event` that is being triggered is in `EventTarget.allowedEvents_`.
-   * Trigger will also call the `on` + `uppercaseEventName` function.
-   *
-   * Example:
-   * 'click' is in `EventTarget.allowedEvents_`, so, trigger will attempt to call
-   * `onClick` if it exists.
-   *
-   * @param {string|EventTarget~Event|Object} event
-   *        The name of the event, an `Event`, or an object with a key of type set to
-   *        an event name.
-   */
-
-
-  EventTarget$2.prototype.trigger = function (event) {
-    var type = event.type || event; // deprecation
-    // In a future version we should default target to `this`
-    // similar to how we default the target to `elem` in
-    // `Events.trigger`. Right now the default `target` will be
-    // `document` due to the `Event.fixEvent` call.
-
-    if (typeof event === 'string') {
-      event = {
-        type: type
-      };
-    }
-
-    event = fixEvent(event);
-
-    if (this.allowedEvents_[type] && this['on' + type]) {
-      this['on' + type](event);
-    }
-
-    trigger(this, event);
-  };
-  /**
-   * An alias of {@link EventTarget#trigger}. Allows `EventTarget` to mimic
-   * the standard DOM API.
-   *
-   * @function
-   * @see {@link EventTarget#trigger}
-   */
-
-
-  EventTarget$2.prototype.dispatchEvent = EventTarget$2.prototype.trigger;
-  var EVENT_MAP;
-
-  EventTarget$2.prototype.queueTrigger = function (event) {
-    var _this = this;
-
-    // only set up EVENT_MAP if it'll be used
-    if (!EVENT_MAP) {
-      EVENT_MAP = new Map();
-    }
-
-    var type = event.type || event;
-    var map = EVENT_MAP.get(this);
-
-    if (!map) {
-      map = new Map();
-      EVENT_MAP.set(this, map);
-    }
-
-    var oldTimeout = map.get(type);
-    map["delete"](type);
-    window.clearTimeout(oldTimeout);
-    var timeout = window.setTimeout(function () {
-      // if we cleared out all timeouts for the current target, delete its map
-      if (map.size === 0) {
-        map = null;
-        EVENT_MAP["delete"](_this);
-      }
-
-      _this.trigger(event);
-    }, 0);
-    map.set(type, timeout);
-  };
-
-  /**
-   * @file mixins/evented.js
-   * @module evented
-   */
-
-  var objName = function objName(obj) {
-    if (typeof obj.name === 'function') {
-      return obj.name();
-    }
-
-    if (typeof obj.name === 'string') {
-      return obj.name;
-    }
-
-    if (obj.name_) {
-      return obj.name_;
-    }
-
-    if (obj.constructor && obj.constructor.name) {
-      return obj.constructor.name;
-    }
-
-    return typeof obj;
-  };
-  /**
-   * Returns whether or not an object has had the evented mixin applied.
-   *
-   * @param  {Object} object
-   *         An object to test.
-   *
-   * @return {boolean}
-   *         Whether or not the object appears to be evented.
-   */
-
-
-  var isEvented = function isEvented(object) {
-    return object instanceof EventTarget$2 || !!object.eventBusEl_ && ['on', 'one', 'off', 'trigger'].every(function (k) {
-      return typeof object[k] === 'function';
-    });
-  };
-  /**
-   * Adds a callback to run after the evented mixin applied.
-   *
-   * @param  {Object} object
-   *         An object to Add
-   * @param  {Function} callback
-   *         The callback to run.
-   */
-
-
-  var addEventedCallback = function addEventedCallback(target, callback) {
-    if (isEvented(target)) {
-      callback();
-    } else {
-      if (!target.eventedCallbacks) {
-        target.eventedCallbacks = [];
-      }
-
-      target.eventedCallbacks.push(callback);
-    }
-  };
-  /**
-   * Whether a value is a valid event type - non-empty string or array.
-   *
-   * @private
-   * @param  {string|Array} type
-   *         The type value to test.
-   *
-   * @return {boolean}
-   *         Whether or not the type is a valid event type.
-   */
-
-
-  var isValidEventType = function isValidEventType(type) {
-    return (// The regex here verifies that the `type` contains at least one non-
-      // whitespace character.
-      typeof type === 'string' && /\S/.test(type) || Array.isArray(type) && !!type.length
-    );
-  };
-  /**
-   * Validates a value to determine if it is a valid event target. Throws if not.
-   *
-   * @private
-   * @throws {Error}
-   *         If the target does not appear to be a valid event target.
-   *
-   * @param  {Object} target
-   *         The object to test.
-   *
-   * @param  {Object} obj
-   *         The evented object we are validating for
-   *
-   * @param  {string} fnName
-   *         The name of the evented mixin function that called this.
-   */
-
-
-  var validateTarget = function validateTarget(target, obj, fnName) {
-    if (!target || !target.nodeName && !isEvented(target)) {
-      throw new Error("Invalid target for " + objName(obj) + "#" + fnName + "; must be a DOM node or evented object.");
-    }
-  };
-  /**
-   * Validates a value to determine if it is a valid event target. Throws if not.
-   *
-   * @private
-   * @throws {Error}
-   *         If the type does not appear to be a valid event type.
-   *
-   * @param  {string|Array} type
-   *         The type to test.
-   *
-   * @param  {Object} obj
-  *         The evented object we are validating for
-   *
-   * @param  {string} fnName
-   *         The name of the evented mixin function that called this.
-   */
-
-
-  var validateEventType = function validateEventType(type, obj, fnName) {
-    if (!isValidEventType(type)) {
-      throw new Error("Invalid event type for " + objName(obj) + "#" + fnName + "; must be a non-empty string or array.");
-    }
-  };
-  /**
-   * Validates a value to determine if it is a valid listener. Throws if not.
-   *
-   * @private
-   * @throws {Error}
-   *         If the listener is not a function.
-   *
-   * @param  {Function} listener
-   *         The listener to test.
-   *
-   * @param  {Object} obj
-   *         The evented object we are validating for
-   *
-   * @param  {string} fnName
-   *         The name of the evented mixin function that called this.
-   */
-
-
-  var validateListener = function validateListener(listener, obj, fnName) {
-    if (typeof listener !== 'function') {
-      throw new Error("Invalid listener for " + objName(obj) + "#" + fnName + "; must be a function.");
-    }
-  };
-  /**
-   * Takes an array of arguments given to `on()` or `one()`, validates them, and
-   * normalizes them into an object.
-   *
-   * @private
-   * @param  {Object} self
-   *         The evented object on which `on()` or `one()` was called. This
-   *         object will be bound as the `this` value for the listener.
-   *
-   * @param  {Array} args
-   *         An array of arguments passed to `on()` or `one()`.
-   *
-   * @param  {string} fnName
-   *         The name of the evented mixin function that called this.
-   *
-   * @return {Object}
-   *         An object containing useful values for `on()` or `one()` calls.
-   */
-
-
-  var normalizeListenArgs = function normalizeListenArgs(self, args, fnName) {
-    // If the number of arguments is less than 3, the target is always the
-    // evented object itself.
-    var isTargetingSelf = args.length < 3 || args[0] === self || args[0] === self.eventBusEl_;
-    var target;
-    var type;
-    var listener;
-
-    if (isTargetingSelf) {
-      target = self.eventBusEl_; // Deal with cases where we got 3 arguments, but we are still listening to
-      // the evented object itself.
-
-      if (args.length >= 3) {
-        args.shift();
-      }
-
-      type = args[0];
-      listener = args[1];
-    } else {
-      target = args[0];
-      type = args[1];
-      listener = args[2];
-    }
-
-    validateTarget(target, self, fnName);
-    validateEventType(type, self, fnName);
-    validateListener(listener, self, fnName);
-    listener = bind(self, listener);
-    return {
-      isTargetingSelf: isTargetingSelf,
-      target: target,
-      type: type,
-      listener: listener
-    };
-  };
-  /**
-   * Adds the listener to the event type(s) on the target, normalizing for
-   * the type of target.
-   *
-   * @private
-   * @param  {Element|Object} target
-   *         A DOM node or evented object.
-   *
-   * @param  {string} method
-   *         The event binding method to use ("on" or "one").
-   *
-   * @param  {string|Array} type
-   *         One or more event type(s).
-   *
-   * @param  {Function} listener
-   *         A listener function.
-   */
-
-
-  var listen = function listen(target, method, type, listener) {
-    validateTarget(target, target, method);
-
-    if (target.nodeName) {
-      Events[method](target, type, listener);
-    } else {
-      target[method](type, listener);
-    }
-  };
-  /**
-   * Contains methods that provide event capabilities to an object which is passed
-   * to {@link module:evented|evented}.
-   *
-   * @mixin EventedMixin
-   */
-
-
-  var EventedMixin = {
-    /**
-     * Add a listener to an event (or events) on this object or another evented
-     * object.
-     *
-     * @param  {string|Array|Element|Object} targetOrType
-     *         If this is a string or array, it represents the event type(s)
-     *         that will trigger the listener.
-     *
-     *         Another evented object can be passed here instead, which will
-     *         cause the listener to listen for events on _that_ object.
-     *
-     *         In either case, the listener's `this` value will be bound to
-     *         this object.
-     *
-     * @param  {string|Array|Function} typeOrListener
-     *         If the first argument was a string or array, this should be the
-     *         listener function. Otherwise, this is a string or array of event
-     *         type(s).
-     *
-     * @param  {Function} [listener]
-     *         If the first argument was another evented object, this will be
-     *         the listener function.
-     */
-    on: function on() {
-      var _this = this;
-
-      for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
-        args[_key] = arguments[_key];
-      }
-
-      var _normalizeListenArgs = normalizeListenArgs(this, args, 'on'),
-          isTargetingSelf = _normalizeListenArgs.isTargetingSelf,
-          target = _normalizeListenArgs.target,
-          type = _normalizeListenArgs.type,
-          listener = _normalizeListenArgs.listener;
-
-      listen(target, 'on', type, listener); // If this object is listening to another evented object.
-
-      if (!isTargetingSelf) {
-        // If this object is disposed, remove the listener.
-        var removeListenerOnDispose = function removeListenerOnDispose() {
-          return _this.off(target, type, listener);
-        }; // Use the same function ID as the listener so we can remove it later it
-        // using the ID of the original listener.
-
-
-        removeListenerOnDispose.guid = listener.guid; // Add a listener to the target's dispose event as well. This ensures
-        // that if the target is disposed BEFORE this object, we remove the
-        // removal listener that was just added. Otherwise, we create a memory leak.
-
-        var removeRemoverOnTargetDispose = function removeRemoverOnTargetDispose() {
-          return _this.off('dispose', removeListenerOnDispose);
-        }; // Use the same function ID as the listener so we can remove it later
-        // it using the ID of the original listener.
-
-
-        removeRemoverOnTargetDispose.guid = listener.guid;
-        listen(this, 'on', 'dispose', removeListenerOnDispose);
-        listen(target, 'on', 'dispose', removeRemoverOnTargetDispose);
-      }
-    },
 
     /**
-     * Add a listener to an event (or events) on this object or another evented
-     * object. The listener will be called once per event and then removed.
+     * Add a function hook to a specific videojs lifecycle.
      *
-     * @param  {string|Array|Element|Object} targetOrType
-     *         If this is a string or array, it represents the event type(s)
-     *         that will trigger the listener.
+     * @param {string} type
+     *        the lifecycle to hook the function to.
      *
-     *         Another evented object can be passed here instead, which will
-     *         cause the listener to listen for events on _that_ object.
-     *
-     *         In either case, the listener's `this` value will be bound to
-     *         this object.
-     *
-     * @param  {string|Array|Function} typeOrListener
-     *         If the first argument was a string or array, this should be the
-     *         listener function. Otherwise, this is a string or array of event
-     *         type(s).
-     *
-     * @param  {Function} [listener]
-     *         If the first argument was another evented object, this will be
-     *         the listener function.
+     * @param {Function|Function[]}
+     *        The function or array of functions to attach.
      */
-    one: function one() {
-      var _this2 = this;
-
-      for (var _len2 = arguments.length, args = new Array(_len2), _key2 = 0; _key2 < _len2; _key2++) {
-        args[_key2] = arguments[_key2];
-      }
-
-      var _normalizeListenArgs2 = normalizeListenArgs(this, args, 'one'),
-          isTargetingSelf = _normalizeListenArgs2.isTargetingSelf,
-          target = _normalizeListenArgs2.target,
-          type = _normalizeListenArgs2.type,
-          listener = _normalizeListenArgs2.listener; // Targeting this evented object.
-
-
-      if (isTargetingSelf) {
-        listen(target, 'one', type, listener); // Targeting another evented object.
-      } else {
-        // TODO: This wrapper is incorrect! It should only
-        //       remove the wrapper for the event type that called it.
-        //       Instead all listners are removed on the first trigger!
-        //       see https://github.com/videojs/video.js/issues/5962
-        var wrapper = function wrapper() {
-          _this2.off(target, type, wrapper);
-
-          for (var _len3 = arguments.length, largs = new Array(_len3), _key3 = 0; _key3 < _len3; _key3++) {
-            largs[_key3] = arguments[_key3];
-          }
-
-          listener.apply(null, largs);
-        }; // Use the same function ID as the listener so we can remove it later
-        // it using the ID of the original listener.
-
-
-        wrapper.guid = listener.guid;
-        listen(target, 'one', type, wrapper);
-      }
-    },
+    const hook = function (type, fn) {
+        hooks(type, fn);
+    };
 
     /**
-     * Add a listener to an event (or events) on this object or another evented
-     * object. The listener will only be called once for the first event that is triggered
-     * then removed.
+     * Remove a hook from a specific videojs lifecycle.
      *
-     * @param  {string|Array|Element|Object} targetOrType
-     *         If this is a string or array, it represents the event type(s)
-     *         that will trigger the listener.
+     * @param  {string} type
+     *         the lifecycle that the function hooked to
      *
-     *         Another evented object can be passed here instead, which will
-     *         cause the listener to listen for events on _that_ object.
-     *
-     *         In either case, the listener's `this` value will be bound to
-     *         this object.
-     *
-     * @param  {string|Array|Function} typeOrListener
-     *         If the first argument was a string or array, this should be the
-     *         listener function. Otherwise, this is a string or array of event
-     *         type(s).
-     *
-     * @param  {Function} [listener]
-     *         If the first argument was another evented object, this will be
-     *         the listener function.
-     */
-    any: function any() {
-      var _this3 = this;
-
-      for (var _len4 = arguments.length, args = new Array(_len4), _key4 = 0; _key4 < _len4; _key4++) {
-        args[_key4] = arguments[_key4];
-      }
-
-      var _normalizeListenArgs3 = normalizeListenArgs(this, args, 'any'),
-          isTargetingSelf = _normalizeListenArgs3.isTargetingSelf,
-          target = _normalizeListenArgs3.target,
-          type = _normalizeListenArgs3.type,
-          listener = _normalizeListenArgs3.listener; // Targeting this evented object.
-
-
-      if (isTargetingSelf) {
-        listen(target, 'any', type, listener); // Targeting another evented object.
-      } else {
-        var wrapper = function wrapper() {
-          _this3.off(target, type, wrapper);
-
-          for (var _len5 = arguments.length, largs = new Array(_len5), _key5 = 0; _key5 < _len5; _key5++) {
-            largs[_key5] = arguments[_key5];
-          }
-
-          listener.apply(null, largs);
-        }; // Use the same function ID as the listener so we can remove it later
-        // it using the ID of the original listener.
-
-
-        wrapper.guid = listener.guid;
-        listen(target, 'any', type, wrapper);
-      }
-    },
-
-    /**
-     * Removes listener(s) from event(s) on an evented object.
-     *
-     * @param  {string|Array|Element|Object} [targetOrType]
-     *         If this is a string or array, it represents the event type(s).
-     *
-     *         Another evented object can be passed here instead, in which case
-     *         ALL 3 arguments are _required_.
-     *
-     * @param  {string|Array|Function} [typeOrListener]
-     *         If the first argument was a string or array, this may be the
-     *         listener function. Otherwise, this is a string or array of event
-     *         type(s).
-     *
-     * @param  {Function} [listener]
-     *         If the first argument was another evented object, this will be
-     *         the listener function; otherwise, _all_ listeners bound to the
-     *         event type(s) will be removed.
-     */
-    off: function off$1(targetOrType, typeOrListener, listener) {
-      // Targeting this evented object.
-      if (!targetOrType || isValidEventType(targetOrType)) {
-        off(this.eventBusEl_, targetOrType, typeOrListener); // Targeting another evented object.
-      } else {
-        var target = targetOrType;
-        var type = typeOrListener; // Fail fast and in a meaningful way!
-
-        validateTarget(target, this, 'off');
-        validateEventType(type, this, 'off');
-        validateListener(listener, this, 'off'); // Ensure there's at least a guid, even if the function hasn't been used
-
-        listener = bind(this, listener); // Remove the dispose listener on this evented object, which was given
-        // the same guid as the event listener in on().
-
-        this.off('dispose', listener);
-
-        if (target.nodeName) {
-          off(target, type, listener);
-          off(target, 'dispose', listener);
-        } else if (isEvented(target)) {
-          target.off(type, listener);
-          target.off('dispose', listener);
-        }
-      }
-    },
-
-    /**
-     * Fire an event on this evented object, causing its listeners to be called.
-     *
-     * @param   {string|Object} event
-     *          An event type or an object with a type property.
-     *
-     * @param   {Object} [hash]
-     *          An additional object to pass along to listeners.
+     * @param  {Function} fn
+     *         The hooked function to remove
      *
      * @return {boolean}
-     *          Whether or not the default behavior was prevented.
+     *         The function that was removed or undef
      */
-    trigger: function trigger$1(event, hash) {
-      validateTarget(this.eventBusEl_, this, 'trigger');
-      var type = event && typeof event !== 'string' ? event.type : event;
-
-      if (!isValidEventType(type)) {
-        var error = "Invalid event type for " + objName(this) + "#trigger; " + 'must be a non-empty string or object with a type key that has a non-empty value.';
-
-        if (event) {
-          (this.log || log$1).error(error);
-        } else {
-          throw new Error(error);
+    const removeHook = function (type, fn) {
+        const index = hooks(type).indexOf(fn);
+        if (index <= -1) {
+            return false;
         }
-      }
+        hooks_[type] = hooks_[type].slice();
+        hooks_[type].splice(index, 1);
+        return true;
+    };
 
-      return trigger(this.eventBusEl_, event, hash);
-    }
-  };
-  /**
-   * Applies {@link module:evented~EventedMixin|EventedMixin} to a target object.
-   *
-   * @param  {Object} target
-   *         The object to which to add event methods.
-   *
-   * @param  {Object} [options={}]
-   *         Options for customizing the mixin behavior.
-   *
-   * @param  {string} [options.eventBusKey]
-   *         By default, adds a `eventBusEl_` DOM element to the target object,
-   *         which is used as an event bus. If the target object already has a
-   *         DOM element that should be used, pass its key here.
-   *
-   * @return {Object}
-   *         The target object.
-   */
-
-  function evented(target, options) {
-    if (options === void 0) {
-      options = {};
-    }
-
-    var _options = options,
-        eventBusKey = _options.eventBusKey; // Set or create the eventBusEl_.
-
-    if (eventBusKey) {
-      if (!target[eventBusKey].nodeName) {
-        throw new Error("The eventBusKey \"" + eventBusKey + "\" does not refer to an element.");
-      }
-
-      target.eventBusEl_ = target[eventBusKey];
-    } else {
-      target.eventBusEl_ = createEl('span', {
-        className: 'vjs-event-bus'
-      });
-    }
-
-    assign(target, EventedMixin);
-
-    if (target.eventedCallbacks) {
-      target.eventedCallbacks.forEach(function (callback) {
-        callback();
-      });
-    } // When any evented object is disposed, it removes all its listeners.
-
-
-    target.on('dispose', function () {
-      target.off();
-      [target, target.el_, target.eventBusEl_].forEach(function (val) {
-        if (val && DomData.has(val)) {
-          DomData["delete"](val);
-        }
-      });
-      window.setTimeout(function () {
-        target.eventBusEl_ = null;
-      }, 0);
-    });
-    return target;
-  }
-
-  /**
-   * @file mixins/stateful.js
-   * @module stateful
-   */
-  /**
-   * Contains methods that provide statefulness to an object which is passed
-   * to {@link module:stateful}.
-   *
-   * @mixin StatefulMixin
-   */
-
-  var StatefulMixin = {
     /**
-     * A hash containing arbitrary keys and values representing the state of
-     * the object.
+     * Add a function hook that will only run once to a specific videojs lifecycle.
+     *
+     * @param {string} type
+     *        the lifecycle to hook the function to.
+     *
+     * @param {Function|Function[]}
+     *        The function or array of functions to attach.
+     */
+    const hookOnce = function (type, fn) {
+        hooks(type, [].concat(fn).map(original => {
+            const wrapper = (...args) => {
+                removeHook(type, wrapper);
+                return original(...args);
+            };
+            return wrapper;
+        }));
+    };
+
+    /**
+     * @file fullscreen-api.js
+     * @module fullscreen-api
+     */
+
+    /**
+     * Store the browser-specific methods for the fullscreen API.
      *
      * @type {Object}
+     * @see [Specification]{@link https://fullscreen.spec.whatwg.org}
+     * @see [Map Approach From Screenfull.js]{@link https://github.com/sindresorhus/screenfull.js}
      */
-    state: {},
-
-    /**
-     * Set the state of an object by mutating its
-     * {@link module:stateful~StatefulMixin.state|state} object in place.
-     *
-     * @fires   module:stateful~StatefulMixin#statechanged
-     * @param   {Object|Function} stateUpdates
-     *          A new set of properties to shallow-merge into the plugin state.
-     *          Can be a plain object or a function returning a plain object.
-     *
-     * @return {Object|undefined}
-     *          An object containing changes that occurred. If no changes
-     *          occurred, returns `undefined`.
-     */
-    setState: function setState(stateUpdates) {
-      var _this = this;
-
-      // Support providing the `stateUpdates` state as a function.
-      if (typeof stateUpdates === 'function') {
-        stateUpdates = stateUpdates();
-      }
-
-      var changes;
-      each(stateUpdates, function (value, key) {
-        // Record the change if the value is different from what's in the
-        // current state.
-        if (_this.state[key] !== value) {
-          changes = changes || {};
-          changes[key] = {
-            from: _this.state[key],
-            to: value
-          };
-        }
-
-        _this.state[key] = value;
-      }); // Only trigger "statechange" if there were changes AND we have a trigger
-      // function. This allows us to not require that the target object be an
-      // evented object.
-
-      if (changes && isEvented(this)) {
-        /**
-         * An event triggered on an object that is both
-         * {@link module:stateful|stateful} and {@link module:evented|evented}
-         * indicating that its state has changed.
-         *
-         * @event    module:stateful~StatefulMixin#statechanged
-         * @type     {Object}
-         * @property {Object} changes
-         *           A hash containing the properties that were changed and
-         *           the values they were changed `from` and `to`.
-         */
-        this.trigger({
-          changes: changes,
-          type: 'statechanged'
-        });
-      }
-
-      return changes;
-    }
-  };
-  /**
-   * Applies {@link module:stateful~StatefulMixin|StatefulMixin} to a target
-   * object.
-   *
-   * If the target object is {@link module:evented|evented} and has a
-   * `handleStateChanged` method, that method will be automatically bound to the
-   * `statechanged` event on itself.
-   *
-   * @param   {Object} target
-   *          The object to be made stateful.
-   *
-   * @param   {Object} [defaultState]
-   *          A default set of properties to populate the newly-stateful object's
-   *          `state` property.
-   *
-   * @return {Object}
-   *          Returns the `target`.
-   */
-
-  function stateful(target, defaultState) {
-    assign(target, StatefulMixin); // This happens after the mixing-in because we need to replace the `state`
-    // added in that step.
-
-    target.state = assign({}, target.state, defaultState); // Auto-bind the `handleStateChanged` method of the target object if it exists.
-
-    if (typeof target.handleStateChanged === 'function' && isEvented(target)) {
-      target.on('statechanged', target.handleStateChanged);
-    }
-
-    return target;
-  }
-
-  /**
-   * @file string-cases.js
-   * @module to-lower-case
-   */
-
-  /**
-   * Lowercase the first letter of a string.
-   *
-   * @param {string} string
-   *        String to be lowercased
-   *
-   * @return {string}
-   *         The string with a lowercased first letter
-   */
-  var toLowerCase = function toLowerCase(string) {
-    if (typeof string !== 'string') {
-      return string;
-    }
-
-    return string.replace(/./, function (w) {
-      return w.toLowerCase();
-    });
-  };
-  /**
-   * Uppercase the first letter of a string.
-   *
-   * @param {string} string
-   *        String to be uppercased
-   *
-   * @return {string}
-   *         The string with an uppercased first letter
-   */
-
-  var toTitleCase$1 = function toTitleCase(string) {
-    if (typeof string !== 'string') {
-      return string;
-    }
-
-    return string.replace(/./, function (w) {
-      return w.toUpperCase();
-    });
-  };
-  /**
-   * Compares the TitleCase versions of the two strings for equality.
-   *
-   * @param {string} str1
-   *        The first string to compare
-   *
-   * @param {string} str2
-   *        The second string to compare
-   *
-   * @return {boolean}
-   *         Whether the TitleCase versions of the strings are equal
-   */
-
-  var titleCaseEquals = function titleCaseEquals(str1, str2) {
-    return toTitleCase$1(str1) === toTitleCase$1(str2);
-  };
-
-  /**
-   * @file merge-options.js
-   * @module merge-options
-   */
-  /**
-   * Merge two objects recursively.
-   *
-   * Performs a deep merge like
-   * {@link https://lodash.com/docs/4.17.10#merge|lodash.merge}, but only merges
-   * plain objects (not arrays, elements, or anything else).
-   *
-   * Non-plain object values will be copied directly from the right-most
-   * argument.
-   *
-   * @static
-   * @param   {Object[]} sources
-   *          One or more objects to merge into a new object.
-   *
-   * @return {Object}
-   *          A new object that is the merged result of all sources.
-   */
-
-  function mergeOptions$3() {
-    var result = {};
-
-    for (var _len = arguments.length, sources = new Array(_len), _key = 0; _key < _len; _key++) {
-      sources[_key] = arguments[_key];
-    }
-
-    sources.forEach(function (source) {
-      if (!source) {
-        return;
-      }
-
-      each(source, function (value, key) {
-        if (!isPlain(value)) {
-          result[key] = value;
-          return;
-        }
-
-        if (!isPlain(result[key])) {
-          result[key] = {};
-        }
-
-        result[key] = mergeOptions$3(result[key], value);
-      });
-    });
-    return result;
-  }
-
-  var MapSham = /*#__PURE__*/function () {
-    function MapSham() {
-      this.map_ = {};
-    }
-
-    var _proto = MapSham.prototype;
-
-    _proto.has = function has(key) {
-      return key in this.map_;
+    const FullscreenApi = {
+        prefixed: true
     };
 
-    _proto["delete"] = function _delete(key) {
-      var has = this.has(key);
-      delete this.map_[key];
-      return has;
-    };
+    // browser API methods
+    const apiMap = [['requestFullscreen', 'exitFullscreen', 'fullscreenElement', 'fullscreenEnabled', 'fullscreenchange', 'fullscreenerror', 'fullscreen'],
+        // WebKit
+        ['webkitRequestFullscreen', 'webkitExitFullscreen', 'webkitFullscreenElement', 'webkitFullscreenEnabled', 'webkitfullscreenchange', 'webkitfullscreenerror', '-webkit-full-screen'],
+        // Mozilla
+        ['mozRequestFullScreen', 'mozCancelFullScreen', 'mozFullScreenElement', 'mozFullScreenEnabled', 'mozfullscreenchange', 'mozfullscreenerror', '-moz-full-screen'],
+        // Microsoft
+        ['msRequestFullscreen', 'msExitFullscreen', 'msFullscreenElement', 'msFullscreenEnabled', 'MSFullscreenChange', 'MSFullscreenError', '-ms-fullscreen']];
+    const specApi = apiMap[0];
+    let browserApi;
 
-    _proto.set = function set(key, value) {
-      this.map_[key] = value;
-      return this;
-    };
-
-    _proto.forEach = function forEach(callback, thisArg) {
-      for (var key in this.map_) {
-        callback.call(thisArg, this.map_[key], key, this);
-      }
-    };
-
-    return MapSham;
-  }();
-
-  var Map$1 = window.Map ? window.Map : MapSham;
-
-  var SetSham = /*#__PURE__*/function () {
-    function SetSham() {
-      this.set_ = {};
+    // determine the supported set of functions
+    for (let i = 0; i < apiMap.length; i++) {
+        // check for exitFullscreen function
+        if (apiMap[i][1] in document) {
+            browserApi = apiMap[i];
+            break;
+        }
     }
 
-    var _proto = SetSham.prototype;
-
-    _proto.has = function has(key) {
-      return key in this.set_;
-    };
-
-    _proto["delete"] = function _delete(key) {
-      var has = this.has(key);
-      delete this.set_[key];
-      return has;
-    };
-
-    _proto.add = function add(key) {
-      this.set_[key] = 1;
-      return this;
-    };
-
-    _proto.forEach = function forEach(callback, thisArg) {
-      for (var key in this.set_) {
-        callback.call(thisArg, key, key, this);
-      }
-    };
-
-    return SetSham;
-  }();
-
-  var Set$1 = window.Set ? window.Set : SetSham;
-
-  var keycode = createCommonjsModule(function (module, exports) {
-    // Source: http://jsfiddle.net/vWx8V/
-    // http://stackoverflow.com/questions/5603195/full-list-of-javascript-keycodes
-
-    /**
-     * Conenience method returns corresponding value for given keyName or keyCode.
-     *
-     * @param {Mixed} keyCode {Number} or keyName {String}
-     * @return {Mixed}
-     * @api public
-     */
-    function keyCode(searchInput) {
-      // Keyboard Events
-      if (searchInput && 'object' === typeof searchInput) {
-        var hasKeyCode = searchInput.which || searchInput.keyCode || searchInput.charCode;
-        if (hasKeyCode) searchInput = hasKeyCode;
-      } // Numbers
-
-
-      if ('number' === typeof searchInput) return names[searchInput]; // Everything else (cast to string)
-
-      var search = String(searchInput); // check codes
-
-      var foundNamedKey = codes[search.toLowerCase()];
-      if (foundNamedKey) return foundNamedKey; // check aliases
-
-      var foundNamedKey = aliases[search.toLowerCase()];
-      if (foundNamedKey) return foundNamedKey; // weird character?
-
-      if (search.length === 1) return search.charCodeAt(0);
-      return undefined;
+    // map the browser API names to the spec API names
+    if (browserApi) {
+        for (let i = 0; i < browserApi.length; i++) {
+            FullscreenApi[specApi[i]] = browserApi[i];
+        }
+        FullscreenApi.prefixed = browserApi[0] !== specApi[0];
     }
+
     /**
-     * Compares a keyboard event with a given keyCode or keyName.
-     *
-     * @param {Event} event Keyboard event that should be tested
-     * @param {Mixed} keyCode {Number} or keyName {String}
-     * @return {Boolean}
-     * @api public
+     * @file create-logger.js
+     * @module create-logger
      */
 
+        // This is the private tracking variable for the logging history.
+    let history = [];
 
-    keyCode.isEventKey = function isEventKey(event, nameOrCode) {
-      if (event && 'object' === typeof event) {
-        var keyCode = event.which || event.keyCode || event.charCode;
-
-        if (keyCode === null || keyCode === undefined) {
-          return false;
+    /**
+     * Log messages to the console and history based on the type of message
+     *
+     * @private
+     * @param  {string} type
+     *         The name of the console method to use.
+     *
+     * @param  {Array} args
+     *         The arguments to be passed to the matching console method.
+     */
+    const LogByTypeFactory = (name, log) => (type, level, args) => {
+        const lvl = log.levels[level];
+        const lvlRegExp = new RegExp(`^(${lvl})$`);
+        if (type !== 'log') {
+            // Add the type to the front of the message when it's not "log".
+            args.unshift(type.toUpperCase() + ':');
         }
 
-        if (typeof nameOrCode === 'string') {
-          // check codes
-          var foundNamedKey = codes[nameOrCode.toLowerCase()];
+        // Add console prefix after adding to history.
+        args.unshift(name + ':');
 
-          if (foundNamedKey) {
-            return foundNamedKey === keyCode;
-          } // check aliases
+        // Add a clone of the args at this point to history.
+        if (history) {
+            history.push([].concat(args));
 
-
-          var foundNamedKey = aliases[nameOrCode.toLowerCase()];
-
-          if (foundNamedKey) {
-            return foundNamedKey === keyCode;
-          }
-        } else if (typeof nameOrCode === 'number') {
-          return nameOrCode === keyCode;
+            // only store 1000 history entries
+            const splice = history.length - 1000;
+            history.splice(0, splice > 0 ? splice : 0);
         }
 
-        return false;
-      }
-    };
-
-    exports = module.exports = keyCode;
-    /**
-     * Get by name
-     *
-     *   exports.code['enter'] // => 13
-     */
-
-    var codes = exports.code = exports.codes = {
-      'backspace': 8,
-      'tab': 9,
-      'enter': 13,
-      'shift': 16,
-      'ctrl': 17,
-      'alt': 18,
-      'pause/break': 19,
-      'caps lock': 20,
-      'esc': 27,
-      'space': 32,
-      'page up': 33,
-      'page down': 34,
-      'end': 35,
-      'home': 36,
-      'left': 37,
-      'up': 38,
-      'right': 39,
-      'down': 40,
-      'insert': 45,
-      'delete': 46,
-      'command': 91,
-      'left command': 91,
-      'right command': 93,
-      'numpad *': 106,
-      'numpad +': 107,
-      'numpad -': 109,
-      'numpad .': 110,
-      'numpad /': 111,
-      'num lock': 144,
-      'scroll lock': 145,
-      'my computer': 182,
-      'my calculator': 183,
-      ';': 186,
-      '=': 187,
-      ',': 188,
-      '-': 189,
-      '.': 190,
-      '/': 191,
-      '`': 192,
-      '[': 219,
-      '\\': 220,
-      ']': 221,
-      "'": 222
-    }; // Helper aliases
-
-    var aliases = exports.aliases = {
-      'windows': 91,
-      '⇧': 16,
-      '⌥': 18,
-      '⌃': 17,
-      '⌘': 91,
-      'ctl': 17,
-      'control': 17,
-      'option': 18,
-      'pause': 19,
-      'break': 19,
-      'caps': 20,
-      'return': 13,
-      'escape': 27,
-      'spc': 32,
-      'spacebar': 32,
-      'pgup': 33,
-      'pgdn': 34,
-      'ins': 45,
-      'del': 46,
-      'cmd': 91
-    };
-    /*!
-     * Programatically add the following
-     */
-    // lower case chars
-
-    for (i = 97; i < 123; i++) {
-      codes[String.fromCharCode(i)] = i - 32;
-    } // numbers
-
-
-    for (var i = 48; i < 58; i++) {
-      codes[i - 48] = i;
-    } // function keys
-
-
-    for (i = 1; i < 13; i++) {
-      codes['f' + i] = i + 111;
-    } // numpad keys
-
-
-    for (i = 0; i < 10; i++) {
-      codes['numpad ' + i] = i + 96;
-    }
-    /**
-     * Get by code
-     *
-     *   exports.name[13] // => 'Enter'
-     */
-
-
-    var names = exports.names = exports.title = {}; // title for backward compat
-    // Create reverse mapping
-
-    for (i in codes) {
-      names[codes[i]] = i;
-    } // Add aliases
-
-
-    for (var alias in aliases) {
-      codes[alias] = aliases[alias];
-    }
-  });
-  keycode.code;
-  keycode.codes;
-  keycode.aliases;
-  keycode.names;
-  keycode.title;
-
-  /**
-   * Player Component - Base class for all UI objects
-   *
-   * @file component.js
-   */
-  /**
-   * Base class for all UI Components.
-   * Components are UI objects which represent both a javascript object and an element
-   * in the DOM. They can be children of other components, and can have
-   * children themselves.
-   *
-   * Components can also use methods from {@link EventTarget}
-   */
-
-  var Component$1 = /*#__PURE__*/function () {
-    /**
-     * A callback that is called when a component is ready. Does not have any
-     * paramters and any callback value will be ignored.
-     *
-     * @callback Component~ReadyCallback
-     * @this Component
-     */
-
-    /**
-     * Creates an instance of this class.
-     *
-     * @param {Player} player
-     *        The `Player` that this class should be attached to.
-     *
-     * @param {Object} [options]
-     *        The key/value store of component options.
-     *
-     * @param {Object[]} [options.children]
-     *        An array of children objects to intialize this component with. Children objects have
-     *        a name property that will be used if more than one component of the same type needs to be
-     *        added.
-     *
-     * @param  {string} [options.className]
-     *         A class or space separated list of classes to add the component
-     *
-     * @param {Component~ReadyCallback} [ready]
-     *        Function that gets called when the `Component` is ready.
-     */
-    function Component(player, options, ready) {
-      var _this = this;
-
-      // The component might be the player itself and we can't pass `this` to super
-      if (!player && this.play) {
-        this.player_ = player = this; // eslint-disable-line
-      } else {
-        this.player_ = player;
-      }
-
-      this.isDisposed_ = false; // Hold the reference to the parent component via `addChild` method
-
-      this.parentComponent_ = null; // Make a copy of prototype.options_ to protect against overriding defaults
-
-      this.options_ = mergeOptions$3({}, this.options_); // Updated options with supplied options
-
-      options = this.options_ = mergeOptions$3(this.options_, options); // Get ID from options or options element if one is supplied
-
-      this.id_ = options.id || options.el && options.el.id; // If there was no ID from the options, generate one
-
-      if (!this.id_) {
-        // Don't require the player ID function in the case of mock players
-        var id = player && player.id && player.id() || 'no_player';
-        this.id_ = id + "_component_" + newGUID();
-      }
-
-      this.name_ = options.name || null; // Create element if one wasn't provided in options
-
-      if (options.el) {
-        this.el_ = options.el;
-      } else if (options.createEl !== false) {
-        this.el_ = this.createEl();
-      }
-
-      if (options.className && this.el_) {
-        options.className.split(' ').forEach(function (c) {
-          return _this.addClass(c);
-        });
-      } // if evented is anything except false, we want to mixin in evented
-
-
-      if (options.evented !== false) {
-        // Make this an evented object and use `el_`, if available, as its event bus
-        evented(this, {
-          eventBusKey: this.el_ ? 'el_' : null
-        });
-        this.handleLanguagechange = this.handleLanguagechange.bind(this);
-        this.on(this.player_, 'languagechange', this.handleLanguagechange);
-      }
-
-      stateful(this, this.constructor.defaultState);
-      this.children_ = [];
-      this.childIndex_ = {};
-      this.childNameIndex_ = {};
-      this.setTimeoutIds_ = new Set$1();
-      this.setIntervalIds_ = new Set$1();
-      this.rafIds_ = new Set$1();
-      this.namedRafs_ = new Map$1();
-      this.clearingTimersOnDispose_ = false; // Add any child components in options
-
-      if (options.initChildren !== false) {
-        this.initChildren();
-      } // Don't want to trigger ready here or it will go before init is actually
-      // finished for all children that run this constructor
-
-
-      this.ready(ready);
-
-      if (options.reportTouchActivity !== false) {
-        this.enableTouchActivity();
-      }
-    }
-    /**
-     * Dispose of the `Component` and all child components.
-     *
-     * @fires Component#dispose
-     *
-     * @param {Object} options
-     * @param {Element} options.originalEl element with which to replace player element
-     */
-
-
-    var _proto = Component.prototype;
-
-    _proto.dispose = function dispose(options) {
-      if (options === void 0) {
-        options = {};
-      }
-
-      // Bail out if the component has already been disposed.
-      if (this.isDisposed_) {
-        return;
-      }
-
-      if (this.readyQueue_) {
-        this.readyQueue_.length = 0;
-      }
-      /**
-       * Triggered when a `Component` is disposed.
-       *
-       * @event Component#dispose
-       * @type {EventTarget~Event}
-       *
-       * @property {boolean} [bubbles=false]
-       *           set to false so that the dispose event does not
-       *           bubble up
-       */
-
-
-      this.trigger({
-        type: 'dispose',
-        bubbles: false
-      });
-      this.isDisposed_ = true; // Dispose all children.
-
-      if (this.children_) {
-        for (var i = this.children_.length - 1; i >= 0; i--) {
-          if (this.children_[i].dispose) {
-            this.children_[i].dispose();
-          }
-        }
-      } // Delete child references
-
-
-      this.children_ = null;
-      this.childIndex_ = null;
-      this.childNameIndex_ = null;
-      this.parentComponent_ = null;
-
-      if (this.el_) {
-        // Remove element from DOM
-        if (this.el_.parentNode) {
-          if (options.restoreEl) {
-            this.el_.parentNode.replaceChild(options.restoreEl, this.el_);
-          } else {
-            this.el_.parentNode.removeChild(this.el_);
-          }
-        }
-
-        this.el_ = null;
-      } // remove reference to the player after disposing of the element
-
-
-      this.player_ = null;
-    }
-    /**
-     * Determine whether or not this component has been disposed.
-     *
-     * @return {boolean}
-     *         If the component has been disposed, will be `true`. Otherwise, `false`.
-     */
-    ;
-
-    _proto.isDisposed = function isDisposed() {
-      return Boolean(this.isDisposed_);
-    }
-    /**
-     * Return the {@link Player} that the `Component` has attached to.
-     *
-     * @return {Player}
-     *         The player that this `Component` has attached to.
-     */
-    ;
-
-    _proto.player = function player() {
-      return this.player_;
-    }
-    /**
-     * Deep merge of options objects with new options.
-     * > Note: When both `obj` and `options` contain properties whose values are objects.
-     *         The two properties get merged using {@link module:mergeOptions}
-     *
-     * @param {Object} obj
-     *        The object that contains new options.
-     *
-     * @return {Object}
-     *         A new object of `this.options_` and `obj` merged together.
-     */
-    ;
-
-    _proto.options = function options(obj) {
-      if (!obj) {
-        return this.options_;
-      }
-
-      this.options_ = mergeOptions$3(this.options_, obj);
-      return this.options_;
-    }
-    /**
-     * Get the `Component`s DOM element
-     *
-     * @return {Element}
-     *         The DOM element for this `Component`.
-     */
-    ;
-
-    _proto.el = function el() {
-      return this.el_;
-    }
-    /**
-     * Create the `Component`s DOM element.
-     *
-     * @param {string} [tagName]
-     *        Element's DOM node type. e.g. 'div'
-     *
-     * @param {Object} [properties]
-     *        An object of properties that should be set.
-     *
-     * @param {Object} [attributes]
-     *        An object of attributes that should be set.
-     *
-     * @return {Element}
-     *         The element that gets created.
-     */
-    ;
-
-    _proto.createEl = function createEl$1(tagName, properties, attributes) {
-      return createEl(tagName, properties, attributes);
-    }
-    /**
-     * Localize a string given the string in english.
-     *
-     * If tokens are provided, it'll try and run a simple token replacement on the provided string.
-     * The tokens it looks for look like `{1}` with the index being 1-indexed into the tokens array.
-     *
-     * If a `defaultValue` is provided, it'll use that over `string`,
-     * if a value isn't found in provided language files.
-     * This is useful if you want to have a descriptive key for token replacement
-     * but have a succinct localized string and not require `en.json` to be included.
-     *
-     * Currently, it is used for the progress bar timing.
-     * ```js
-     * {
-     *   "progress bar timing: currentTime={1} duration={2}": "{1} of {2}"
-     * }
-     * ```
-     * It is then used like so:
-     * ```js
-     * this.localize('progress bar timing: currentTime={1} duration{2}',
-     *               [this.player_.currentTime(), this.player_.duration()],
-     *               '{1} of {2}');
-     * ```
-     *
-     * Which outputs something like: `01:23 of 24:56`.
-     *
-     *
-     * @param {string} string
-     *        The string to localize and the key to lookup in the language files.
-     * @param {string[]} [tokens]
-     *        If the current item has token replacements, provide the tokens here.
-     * @param {string} [defaultValue]
-     *        Defaults to `string`. Can be a default value to use for token replacement
-     *        if the lookup key is needed to be separate.
-     *
-     * @return {string}
-     *         The localized string or if no localization exists the english string.
-     */
-    ;
-
-    _proto.localize = function localize(string, tokens, defaultValue) {
-      if (defaultValue === void 0) {
-        defaultValue = string;
-      }
-
-      var code = this.player_.language && this.player_.language();
-      var languages = this.player_.languages && this.player_.languages();
-      var language = languages && languages[code];
-      var primaryCode = code && code.split('-')[0];
-      var primaryLang = languages && languages[primaryCode];
-      var localizedString = defaultValue;
-
-      if (language && language[string]) {
-        localizedString = language[string];
-      } else if (primaryLang && primaryLang[string]) {
-        localizedString = primaryLang[string];
-      }
-
-      if (tokens) {
-        localizedString = localizedString.replace(/\{(\d+)\}/g, function (match, index) {
-          var value = tokens[index - 1];
-          var ret = value;
-
-          if (typeof value === 'undefined') {
-            ret = match;
-          }
-
-          return ret;
-        });
-      }
-
-      return localizedString;
-    }
-    /**
-     * Handles language change for the player in components. Should be overriden by sub-components.
-     *
-     * @abstract
-     */
-    ;
-
-    _proto.handleLanguagechange = function handleLanguagechange() {}
-    /**
-     * Return the `Component`s DOM element. This is where children get inserted.
-     * This will usually be the the same as the element returned in {@link Component#el}.
-     *
-     * @return {Element}
-     *         The content element for this `Component`.
-     */
-    ;
-
-    _proto.contentEl = function contentEl() {
-      return this.contentEl_ || this.el_;
-    }
-    /**
-     * Get this `Component`s ID
-     *
-     * @return {string}
-     *         The id of this `Component`
-     */
-    ;
-
-    _proto.id = function id() {
-      return this.id_;
-    }
-    /**
-     * Get the `Component`s name. The name gets used to reference the `Component`
-     * and is set during registration.
-     *
-     * @return {string}
-     *         The name of this `Component`.
-     */
-    ;
-
-    _proto.name = function name() {
-      return this.name_;
-    }
-    /**
-     * Get an array of all child components
-     *
-     * @return {Array}
-     *         The children
-     */
-    ;
-
-    _proto.children = function children() {
-      return this.children_;
-    }
-    /**
-     * Returns the child `Component` with the given `id`.
-     *
-     * @param {string} id
-     *        The id of the child `Component` to get.
-     *
-     * @return {Component|undefined}
-     *         The child `Component` with the given `id` or undefined.
-     */
-    ;
-
-    _proto.getChildById = function getChildById(id) {
-      return this.childIndex_[id];
-    }
-    /**
-     * Returns the child `Component` with the given `name`.
-     *
-     * @param {string} name
-     *        The name of the child `Component` to get.
-     *
-     * @return {Component|undefined}
-     *         The child `Component` with the given `name` or undefined.
-     */
-    ;
-
-    _proto.getChild = function getChild(name) {
-      if (!name) {
-        return;
-      }
-
-      return this.childNameIndex_[name];
-    }
-    /**
-     * Returns the descendant `Component` following the givent
-     * descendant `names`. For instance ['foo', 'bar', 'baz'] would
-     * try to get 'foo' on the current component, 'bar' on the 'foo'
-     * component and 'baz' on the 'bar' component and return undefined
-     * if any of those don't exist.
-     *
-     * @param {...string[]|...string} names
-     *        The name of the child `Component` to get.
-     *
-     * @return {Component|undefined}
-     *         The descendant `Component` following the given descendant
-     *         `names` or undefined.
-     */
-    ;
-
-    _proto.getDescendant = function getDescendant() {
-      for (var _len = arguments.length, names = new Array(_len), _key = 0; _key < _len; _key++) {
-        names[_key] = arguments[_key];
-      }
-
-      // flatten array argument into the main array
-      names = names.reduce(function (acc, n) {
-        return acc.concat(n);
-      }, []);
-      var currentChild = this;
-
-      for (var i = 0; i < names.length; i++) {
-        currentChild = currentChild.getChild(names[i]);
-
-        if (!currentChild || !currentChild.getChild) {
-          return;
-        }
-      }
-
-      return currentChild;
-    }
-    /**
-     * Add a child `Component` inside the current `Component`.
-     *
-     *
-     * @param {string|Component} child
-     *        The name or instance of a child to add.
-     *
-     * @param {Object} [options={}]
-     *        The key/value store of options that will get passed to children of
-     *        the child.
-     *
-     * @param {number} [index=this.children_.length]
-     *        The index to attempt to add a child into.
-     *
-     * @return {Component}
-     *         The `Component` that gets added as a child. When using a string the
-     *         `Component` will get created by this process.
-     */
-    ;
-
-    _proto.addChild = function addChild(child, options, index) {
-      if (options === void 0) {
-        options = {};
-      }
-
-      if (index === void 0) {
-        index = this.children_.length;
-      }
-
-      var component;
-      var componentName; // If child is a string, create component with options
-
-      if (typeof child === 'string') {
-        componentName = toTitleCase$1(child);
-        var componentClassName = options.componentClass || componentName; // Set name through options
-
-        options.name = componentName; // Create a new object & element for this controls set
-        // If there's no .player_, this is a player
-
-        var ComponentClass = Component.getComponent(componentClassName);
-
-        if (!ComponentClass) {
-          throw new Error("Component " + componentClassName + " does not exist");
-        } // data stored directly on the videojs object may be
-        // misidentified as a component to retain
-        // backwards-compatibility with 4.x. check to make sure the
-        // component class can be instantiated.
-
-
-        if (typeof ComponentClass !== 'function') {
-          return null;
-        }
-
-        component = new ComponentClass(this.player_ || this, options); // child is a component instance
-      } else {
-        component = child;
-      }
-
-      if (component.parentComponent_) {
-        component.parentComponent_.removeChild(component);
-      }
-
-      this.children_.splice(index, 0, component);
-      component.parentComponent_ = this;
-
-      if (typeof component.id === 'function') {
-        this.childIndex_[component.id()] = component;
-      } // If a name wasn't used to create the component, check if we can use the
-      // name function of the component
-
-
-      componentName = componentName || component.name && toTitleCase$1(component.name());
-
-      if (componentName) {
-        this.childNameIndex_[componentName] = component;
-        this.childNameIndex_[toLowerCase(componentName)] = component;
-      } // Add the UI object's element to the container div (box)
-      // Having an element is not required
-
-
-      if (typeof component.el === 'function' && component.el()) {
-        // If inserting before a component, insert before that component's element
-        var refNode = null;
-
-        if (this.children_[index + 1]) {
-          // Most children are components, but the video tech is an HTML element
-          if (this.children_[index + 1].el_) {
-            refNode = this.children_[index + 1].el_;
-          } else if (isEl(this.children_[index + 1])) {
-            refNode = this.children_[index + 1];
-          }
-        }
-
-        this.contentEl().insertBefore(component.el(), refNode);
-      } // Return so it can stored on parent object if desired.
-
-
-      return component;
-    }
-    /**
-     * Remove a child `Component` from this `Component`s list of children. Also removes
-     * the child `Component`s element from this `Component`s element.
-     *
-     * @param {Component} component
-     *        The child `Component` to remove.
-     */
-    ;
-
-    _proto.removeChild = function removeChild(component) {
-      if (typeof component === 'string') {
-        component = this.getChild(component);
-      }
-
-      if (!component || !this.children_) {
-        return;
-      }
-
-      var childFound = false;
-
-      for (var i = this.children_.length - 1; i >= 0; i--) {
-        if (this.children_[i] === component) {
-          childFound = true;
-          this.children_.splice(i, 1);
-          break;
-        }
-      }
-
-      if (!childFound) {
-        return;
-      }
-
-      component.parentComponent_ = null;
-      this.childIndex_[component.id()] = null;
-      this.childNameIndex_[toTitleCase$1(component.name())] = null;
-      this.childNameIndex_[toLowerCase(component.name())] = null;
-      var compEl = component.el();
-
-      if (compEl && compEl.parentNode === this.contentEl()) {
-        this.contentEl().removeChild(component.el());
-      }
-    }
-    /**
-     * Add and initialize default child `Component`s based upon options.
-     */
-    ;
-
-    _proto.initChildren = function initChildren() {
-      var _this2 = this;
-
-      var children = this.options_.children;
-
-      if (children) {
-        // `this` is `parent`
-        var parentOptions = this.options_;
-
-        var handleAdd = function handleAdd(child) {
-          var name = child.name;
-          var opts = child.opts; // Allow options for children to be set at the parent options
-          // e.g. videojs(id, { controlBar: false });
-          // instead of videojs(id, { children: { controlBar: false });
-
-          if (parentOptions[name] !== undefined) {
-            opts = parentOptions[name];
-          } // Allow for disabling default components
-          // e.g. options['children']['posterImage'] = false
-
-
-          if (opts === false) {
+        // If there's no console then don't try to output messages, but they will
+        // still be stored in history.
+        if (!window.console) {
             return;
-          } // Allow options to be passed as a simple boolean if no configuration
-          // is necessary.
-
-
-          if (opts === true) {
-            opts = {};
-          } // We also want to pass the original player options
-          // to each component as well so they don't need to
-          // reach back into the player for options later.
-
-
-          opts.playerOptions = _this2.options_.playerOptions; // Create and add the child component.
-          // Add a direct reference to the child by name on the parent instance.
-          // If two of the same component are used, different names should be supplied
-          // for each
-
-          var newChild = _this2.addChild(name, opts);
-
-          if (newChild) {
-            _this2[name] = newChild;
-          }
-        }; // Allow for an array of children details to passed in the options
-
-
-        var workingChildren;
-        var Tech = Component.getComponent('Tech');
-
-        if (Array.isArray(children)) {
-          workingChildren = children;
-        } else {
-          workingChildren = Object.keys(children);
         }
 
-        workingChildren // children that are in this.options_ but also in workingChildren  would
-        // give us extra children we do not want. So, we want to filter them out.
-        .concat(Object.keys(this.options_).filter(function (child) {
-          return !workingChildren.some(function (wchild) {
-            if (typeof wchild === 'string') {
-              return child === wchild;
-            }
+        // Was setting these once outside of this function, but containing them
+        // in the function makes it easier to test cases where console doesn't exist
+        // when the module is executed.
+        let fn = window.console[type];
+        if (!fn && type === 'debug') {
+            // Certain browsers don't have support for console.debug. For those, we
+            // should default to the closest comparable log.
+            fn = window.console.info || window.console.log;
+        }
 
-            return child === wchild.name;
-          });
-        })).map(function (child) {
-          var name;
-          var opts;
+        // Bail out if there's no console or if this type is not allowed by the
+        // current logging level.
+        if (!fn || !lvl || !lvlRegExp.test(type)) {
+            return;
+        }
+        fn[Array.isArray(args) ? 'apply' : 'call'](window.console, args);
+    };
+    function createLogger$1(name) {
+        // This is the private tracking variable for logging level.
+        let level = 'info';
 
-          if (typeof child === 'string') {
-            name = child;
-            opts = children[name] || _this2.options_[name] || {};
-          } else {
-            name = child.name;
-            opts = child;
-          }
-
-          return {
-            name: name,
-            opts: opts
-          };
-        }).filter(function (child) {
-          // we have to make sure that child.name isn't in the techOrder since
-          // techs are registerd as Components but can't aren't compatible
-          // See https://github.com/videojs/video.js/issues/2772
-          var c = Component.getComponent(child.opts.componentClass || toTitleCase$1(child.name));
-          return c && !Tech.isTech(c);
-        }).forEach(handleAdd);
-      }
-    }
-    /**
-     * Builds the default DOM class name. Should be overriden by sub-components.
-     *
-     * @return {string}
-     *         The DOM class name for this object.
-     *
-     * @abstract
-     */
-    ;
-
-    _proto.buildCSSClass = function buildCSSClass() {
-      // Child classes can include a function that does:
-      // return 'CLASS NAME' + this._super();
-      return '';
-    }
-    /**
-     * Bind a listener to the component's ready state.
-     * Different from event listeners in that if the ready event has already happened
-     * it will trigger the function immediately.
-     *
-     * @return {Component}
-     *         Returns itself; method can be chained.
-     */
-    ;
-
-    _proto.ready = function ready(fn, sync) {
-      if (sync === void 0) {
-        sync = false;
-      }
-
-      if (!fn) {
-        return;
-      }
-
-      if (!this.isReady_) {
-        this.readyQueue_ = this.readyQueue_ || [];
-        this.readyQueue_.push(fn);
-        return;
-      }
-
-      if (sync) {
-        fn.call(this);
-      } else {
-        // Call the function asynchronously by default for consistency
-        this.setTimeout(fn, 1);
-      }
-    }
-    /**
-     * Trigger all the ready listeners for this `Component`.
-     *
-     * @fires Component#ready
-     */
-    ;
-
-    _proto.triggerReady = function triggerReady() {
-      this.isReady_ = true; // Ensure ready is triggered asynchronously
-
-      this.setTimeout(function () {
-        var readyQueue = this.readyQueue_; // Reset Ready Queue
-
-        this.readyQueue_ = [];
-
-        if (readyQueue && readyQueue.length > 0) {
-          readyQueue.forEach(function (fn) {
-            fn.call(this);
-          }, this);
-        } // Allow for using event listeners also
+        // the curried logByType bound to the specific log and history
+        let logByType;
 
         /**
-         * Triggered when a `Component` is ready.
+         * Logs plain debug messages. Similar to `console.log`.
          *
-         * @event Component#ready
-         * @type {EventTarget~Event}
+         * Due to [limitations](https://github.com/jsdoc3/jsdoc/issues/955#issuecomment-313829149)
+         * of our JSDoc template, we cannot properly document this as both a function
+         * and a namespace, so its function signature is documented here.
+         *
+         * #### Arguments
+         * ##### *args
+         * *[]
+         *
+         * Any combination of values that could be passed to `console.log()`.
+         *
+         * #### Return Value
+         *
+         * `undefined`
+         *
+         * @namespace
+         * @param    {...*} args
+         *           One or more messages or objects that should be logged.
          */
+        const log = function (...args) {
+            logByType('log', level, args);
+        };
 
+        // This is the logByType helper that the logging methods below use
+        logByType = LogByTypeFactory(name, log);
 
-        this.trigger('ready');
-      }, 1);
+        /**
+         * Create a new sublogger which chains the old name to the new name.
+         *
+         * For example, doing `videojs.log.createLogger('player')` and then using that logger will log the following:
+         * ```js
+         *  mylogger('foo');
+         *  // > VIDEOJS: player: foo
+         * ```
+         *
+         * @param {string} name
+         *        The name to add call the new logger
+         * @return {Object}
+         */
+        log.createLogger = subname => createLogger$1(name + ': ' + subname);
+
+        /**
+         * Enumeration of available logging levels, where the keys are the level names
+         * and the values are `|`-separated strings containing logging methods allowed
+         * in that logging level. These strings are used to create a regular expression
+         * matching the function name being called.
+         *
+         * Levels provided by Video.js are:
+         *
+         * - `off`: Matches no calls. Any value that can be cast to `false` will have
+         *   this effect. The most restrictive.
+         * - `all`: Matches only Video.js-provided functions (`debug`, `log`,
+         *   `log.warn`, and `log.error`).
+         * - `debug`: Matches `log.debug`, `log`, `log.warn`, and `log.error` calls.
+         * - `info` (default): Matches `log`, `log.warn`, and `log.error` calls.
+         * - `warn`: Matches `log.warn` and `log.error` calls.
+         * - `error`: Matches only `log.error` calls.
+         *
+         * @type {Object}
+         */
+        log.levels = {
+            all: 'debug|log|warn|error',
+            off: '',
+            debug: 'debug|log|warn|error',
+            info: 'log|warn|error',
+            warn: 'warn|error',
+            error: 'error',
+            DEFAULT: level
+        };
+
+        /**
+         * Get or set the current logging level.
+         *
+         * If a string matching a key from {@link module:log.levels} is provided, acts
+         * as a setter.
+         *
+         * @param  {string} [lvl]
+         *         Pass a valid level to set a new logging level.
+         *
+         * @return {string}
+         *         The current logging level.
+         */
+        log.level = lvl => {
+            if (typeof lvl === 'string') {
+                if (!log.levels.hasOwnProperty(lvl)) {
+                    throw new Error(`"${lvl}" in not a valid log level`);
+                }
+                level = lvl;
+            }
+            return level;
+        };
+
+        /**
+         * Returns an array containing everything that has been logged to the history.
+         *
+         * This array is a shallow clone of the internal history record. However, its
+         * contents are _not_ cloned; so, mutating objects inside this array will
+         * mutate them in history.
+         *
+         * @return {Array}
+         */
+        log.history = () => history ? [].concat(history) : [];
+
+        /**
+         * Allows you to filter the history by the given logger name
+         *
+         * @param {string} fname
+         *        The name to filter by
+         *
+         * @return {Array}
+         *         The filtered list to return
+         */
+        log.history.filter = fname => {
+            return (history || []).filter(historyItem => {
+                // if the first item in each historyItem includes `fname`, then it's a match
+                return new RegExp(`.*${fname}.*`).test(historyItem[0]);
+            });
+        };
+
+        /**
+         * Clears the internal history tracking, but does not prevent further history
+         * tracking.
+         */
+        log.history.clear = () => {
+            if (history) {
+                history.length = 0;
+            }
+        };
+
+        /**
+         * Disable history tracking if it is currently enabled.
+         */
+        log.history.disable = () => {
+            if (history !== null) {
+                history.length = 0;
+                history = null;
+            }
+        };
+
+        /**
+         * Enable history tracking if it is currently disabled.
+         */
+        log.history.enable = () => {
+            if (history === null) {
+                history = [];
+            }
+        };
+
+        /**
+         * Logs error messages. Similar to `console.error`.
+         *
+         * @param {...*} args
+         *        One or more messages or objects that should be logged as an error
+         */
+        log.error = (...args) => logByType('error', level, args);
+
+        /**
+         * Logs warning messages. Similar to `console.warn`.
+         *
+         * @param {...*} args
+         *        One or more messages or objects that should be logged as a warning.
+         */
+        log.warn = (...args) => logByType('warn', level, args);
+
+        /**
+         * Logs debug messages. Similar to `console.debug`, but may also act as a comparable
+         * log if `console.debug` is not available
+         *
+         * @param {...*} args
+         *        One or more messages or objects that should be logged as debug.
+         */
+        log.debug = (...args) => logByType('debug', level, args);
+        return log;
     }
+
     /**
-     * Find a single DOM element matching a `selector`. This can be within the `Component`s
-     * `contentEl()` or another custom context.
-     *
-     * @param {string} selector
-     *        A valid CSS selector, which will be passed to `querySelector`.
-     *
-     * @param {Element|string} [context=this.contentEl()]
-     *        A DOM element within which to query. Can also be a selector string in
-     *        which case the first matching element will get used as context. If
-     *        missing `this.contentEl()` gets used. If  `this.contentEl()` returns
-     *        nothing it falls back to `document`.
-     *
-     * @return {Element|null}
-     *         the dom element that was found, or null
-     *
-     * @see [Information on CSS Selectors](https://developer.mozilla.org/en-US/docs/Web/Guide/CSS/Getting_Started/Selectors)
+     * @file log.js
+     * @module log
      */
-    ;
+    const log$1 = createLogger$1('VIDEOJS');
+    const createLogger = log$1.createLogger;
 
-    _proto.$ = function $$1(selector, context) {
-      return $(selector, context || this.contentEl());
-    }
     /**
-     * Finds all DOM element matching a `selector`. This can be within the `Component`s
-     * `contentEl()` or another custom context.
-     *
-     * @param {string} selector
-     *        A valid CSS selector, which will be passed to `querySelectorAll`.
-     *
-     * @param {Element|string} [context=this.contentEl()]
-     *        A DOM element within which to query. Can also be a selector string in
-     *        which case the first matching element will get used as context. If
-     *        missing `this.contentEl()` gets used. If  `this.contentEl()` returns
-     *        nothing it falls back to `document`.
-     *
-     * @return {NodeList}
-     *         a list of dom elements that were found
-     *
-     * @see [Information on CSS Selectors](https://developer.mozilla.org/en-US/docs/Web/Guide/CSS/Getting_Started/Selectors)
+     * @file obj.js
+     * @module obj
      */
-    ;
 
-    _proto.$$ = function $$$1(selector, context) {
-      return $$(selector, context || this.contentEl());
-    }
     /**
-     * Check if a component's element has a CSS class name.
+     * @callback obj:EachCallback
      *
-     * @param {string} classToCheck
-     *        CSS class name to check.
+     * @param {*} value
+     *        The current key for the object that is being iterated over.
+     *
+     * @param {string} key
+     *        The current key-value for object that is being iterated over
+     */
+
+    /**
+     * @callback obj:ReduceCallback
+     *
+     * @param {*} accum
+     *        The value that is accumulating over the reduce loop.
+     *
+     * @param {*} value
+     *        The current key for the object that is being iterated over.
+     *
+     * @param {string} key
+     *        The current key-value for object that is being iterated over
+     *
+     * @return {*}
+     *         The new accumulated value.
+     */
+    const toString$1 = Object.prototype.toString;
+
+    /**
+     * Get the keys of an Object
+     *
+     * @param {Object}
+     *        The Object to get the keys from
+     *
+     * @return {string[]}
+     *         An array of the keys from the object. Returns an empty array if the
+     *         object passed in was invalid or had no keys.
+     *
+     * @private
+     */
+    const keys = function (object) {
+        return isObject$1(object) ? Object.keys(object) : [];
+    };
+
+    /**
+     * Array-like iteration for objects.
+     *
+     * @param {Object} object
+     *        The object to iterate over
+     *
+     * @param {obj:EachCallback} fn
+     *        The callback function which is called for each key in the object.
+     */
+    function each(object, fn) {
+        keys(object).forEach(key => fn(object[key], key));
+    }
+
+    /**
+     * Array-like reduce for objects.
+     *
+     * @param {Object} object
+     *        The Object that you want to reduce.
+     *
+     * @param {Function} fn
+     *         A callback function which is called for each key in the object. It
+     *         receives the accumulated value and the per-iteration value and key
+     *         as arguments.
+     *
+     * @param {*} [initial = 0]
+     *        Starting value
+     *
+     * @return {*}
+     *         The final accumulated value.
+     */
+    function reduce(object, fn, initial = 0) {
+        return keys(object).reduce((accum, key) => fn(accum, object[key], key), initial);
+    }
+
+    /**
+     * Returns whether a value is an object of any kind - including DOM nodes,
+     * arrays, regular expressions, etc. Not functions, though.
+     *
+     * This avoids the gotcha where using `typeof` on a `null` value
+     * results in `'object'`.
+     *
+     * @param  {Object} value
+     * @return {boolean}
+     */
+    function isObject$1(value) {
+        return !!value && typeof value === 'object';
+    }
+
+    /**
+     * Returns whether an object appears to be a "plain" object - that is, a
+     * direct instance of `Object`.
+     *
+     * @param  {Object} value
+     * @return {boolean}
+     */
+    function isPlain(value) {
+        return isObject$1(value) && toString$1.call(value) === '[object Object]' && value.constructor === Object;
+    }
+
+    /**
+     * Merge two objects recursively.
+     *
+     * Performs a deep merge like
+     * {@link https://lodash.com/docs/4.17.10#merge|lodash.merge}, but only merges
+     * plain objects (not arrays, elements, or anything else).
+     *
+     * Non-plain object values will be copied directly from the right-most
+     * argument.
+     *
+     * @param   {Object[]} sources
+     *          One or more objects to merge into a new object.
+     *
+     * @return {Object}
+     *          A new object that is the merged result of all sources.
+     */
+    function merge$2(...sources) {
+        const result = {};
+        sources.forEach(source => {
+            if (!source) {
+                return;
+            }
+            each(source, (value, key) => {
+                if (!isPlain(value)) {
+                    result[key] = value;
+                    return;
+                }
+                if (!isPlain(result[key])) {
+                    result[key] = {};
+                }
+                result[key] = merge$2(result[key], value);
+            });
+        });
+        return result;
+    }
+
+    /**
+     * Object.defineProperty but "lazy", which means that the value is only set after
+     * it is retrieved the first time, rather than being set right away.
+     *
+     * @param {Object} obj the object to set the property on
+     * @param {string} key the key for the property to set
+     * @param {Function} getValue the function used to get the value when it is needed.
+     * @param {boolean} setter whether a setter should be allowed or not
+     */
+    function defineLazyProperty(obj, key, getValue, setter = true) {
+        const set = value => Object.defineProperty(obj, key, {
+            value,
+            enumerable: true,
+            writable: true
+        });
+        const options = {
+            configurable: true,
+            enumerable: true,
+            get() {
+                const value = getValue();
+                set(value);
+                return value;
+            }
+        };
+        if (setter) {
+            options.set = set;
+        }
+        return Object.defineProperty(obj, key, options);
+    }
+
+    var Obj = /*#__PURE__*/Object.freeze({
+        __proto__: null,
+        each: each,
+        reduce: reduce,
+        isObject: isObject$1,
+        isPlain: isPlain,
+        merge: merge$2,
+        defineLazyProperty: defineLazyProperty
+    });
+
+    /**
+     * @file browser.js
+     * @module browser
+     */
+
+    /**
+     * Whether or not this device is an iPod.
+     *
+     * @static
+     * @type {Boolean}
+     */
+    let IS_IPOD = false;
+
+    /**
+     * The detected iOS version - or `null`.
+     *
+     * @static
+     * @type {string|null}
+     */
+    let IOS_VERSION = null;
+
+    /**
+     * Whether or not this is an Android device.
+     *
+     * @static
+     * @type {Boolean}
+     */
+    let IS_ANDROID = false;
+
+    /**
+     * The detected Android version - or `null` if not Android or indeterminable.
+     *
+     * @static
+     * @type {number|string|null}
+     */
+    let ANDROID_VERSION;
+
+    /**
+     * Whether or not this is Mozilla Firefox.
+     *
+     * @static
+     * @type {Boolean}
+     */
+    let IS_FIREFOX = false;
+
+    /**
+     * Whether or not this is Microsoft Edge.
+     *
+     * @static
+     * @type {Boolean}
+     */
+    let IS_EDGE = false;
+
+    /**
+     * Whether or not this is any Chromium Browser
+     *
+     * @static
+     * @type {Boolean}
+     */
+    let IS_CHROMIUM = false;
+
+    /**
+     * Whether or not this is any Chromium browser that is not Edge.
+     *
+     * This will also be `true` for Chrome on iOS, which will have different support
+     * as it is actually Safari under the hood.
+     *
+     * Deprecated, as the behaviour to not match Edge was to prevent Legacy Edge's UA matching.
+     * IS_CHROMIUM should be used instead.
+     * "Chromium but not Edge" could be explicitly tested with IS_CHROMIUM && !IS_EDGE
+     *
+     * @static
+     * @deprecated
+     * @type {Boolean}
+     */
+    let IS_CHROME = false;
+
+    /**
+     * The detected Chromium version - or `null`.
+     *
+     * @static
+     * @type {number|null}
+     */
+    let CHROMIUM_VERSION = null;
+
+    /**
+     * The detected Google Chrome version - or `null`.
+     * This has always been the _Chromium_ version, i.e. would return on Chromium Edge.
+     * Deprecated, use CHROMIUM_VERSION instead.
+     *
+     * @static
+     * @deprecated
+     * @type {number|null}
+     */
+    let CHROME_VERSION = null;
+
+    /**
+     * The detected Internet Explorer version - or `null`.
+     *
+     * @static
+     * @deprecated
+     * @type {number|null}
+     */
+    let IE_VERSION = null;
+
+    /**
+     * Whether or not this is desktop Safari.
+     *
+     * @static
+     * @type {Boolean}
+     */
+    let IS_SAFARI = false;
+
+    /**
+     * Whether or not this is a Windows machine.
+     *
+     * @static
+     * @type {Boolean}
+     */
+    let IS_WINDOWS = false;
+
+    /**
+     * Whether or not this device is an iPad.
+     *
+     * @static
+     * @type {Boolean}
+     */
+    let IS_IPAD = false;
+
+    /**
+     * Whether or not this device is an iPhone.
+     *
+     * @static
+     * @type {Boolean}
+     */
+        // The Facebook app's UIWebView identifies as both an iPhone and iPad, so
+        // to identify iPhones, we need to exclude iPads.
+        // http://artsy.github.io/blog/2012/10/18/the-perils-of-ios-user-agent-sniffing/
+    let IS_IPHONE = false;
+
+    /**
+     * Whether or not this device is touch-enabled.
+     *
+     * @static
+     * @const
+     * @type {Boolean}
+     */
+    const TOUCH_ENABLED = Boolean(isReal() && ('ontouchstart' in window || window.navigator.maxTouchPoints || window.DocumentTouch && window.document instanceof window.DocumentTouch));
+    const UAD = window.navigator && window.navigator.userAgentData;
+    if (UAD) {
+        // If userAgentData is present, use it instead of userAgent to avoid warnings
+        // Currently only implemented on Chromium
+        // userAgentData does not expose Android version, so ANDROID_VERSION remains `null`
+
+        IS_ANDROID = UAD.platform === 'Android';
+        IS_EDGE = Boolean(UAD.brands.find(b => b.brand === 'Microsoft Edge'));
+        IS_CHROMIUM = Boolean(UAD.brands.find(b => b.brand === 'Chromium'));
+        IS_CHROME = !IS_EDGE && IS_CHROMIUM;
+        CHROMIUM_VERSION = CHROME_VERSION = (UAD.brands.find(b => b.brand === 'Chromium') || {}).version || null;
+        IS_WINDOWS = UAD.platform === 'Windows';
+    }
+
+    // If the browser is not Chromium, either userAgentData is not present which could be an old Chromium browser,
+    //  or it's a browser that has added userAgentData since that we don't have tests for yet. In either case,
+    // the checks need to be made agiainst the regular userAgent string.
+    if (!IS_CHROMIUM) {
+        const USER_AGENT = window.navigator && window.navigator.userAgent || '';
+        IS_IPOD = /iPod/i.test(USER_AGENT);
+        IOS_VERSION = function () {
+            const match = USER_AGENT.match(/OS (\d+)_/i);
+            if (match && match[1]) {
+                return match[1];
+            }
+            return null;
+        }();
+        IS_ANDROID = /Android/i.test(USER_AGENT);
+        ANDROID_VERSION = function () {
+            // This matches Android Major.Minor.Patch versions
+            // ANDROID_VERSION is Major.Minor as a Number, if Minor isn't available, then only Major is returned
+            const match = USER_AGENT.match(/Android (\d+)(?:\.(\d+))?(?:\.(\d+))*/i);
+            if (!match) {
+                return null;
+            }
+            const major = match[1] && parseFloat(match[1]);
+            const minor = match[2] && parseFloat(match[2]);
+            if (major && minor) {
+                return parseFloat(match[1] + '.' + match[2]);
+            } else if (major) {
+                return major;
+            }
+            return null;
+        }();
+        IS_FIREFOX = /Firefox/i.test(USER_AGENT);
+        IS_EDGE = /Edg/i.test(USER_AGENT);
+        IS_CHROMIUM = /Chrome/i.test(USER_AGENT) || /CriOS/i.test(USER_AGENT);
+        IS_CHROME = !IS_EDGE && IS_CHROMIUM;
+        CHROMIUM_VERSION = CHROME_VERSION = function () {
+            const match = USER_AGENT.match(/(Chrome|CriOS)\/(\d+)/);
+            if (match && match[2]) {
+                return parseFloat(match[2]);
+            }
+            return null;
+        }();
+        IE_VERSION = function () {
+            const result = /MSIE\s(\d+)\.\d/.exec(USER_AGENT);
+            let version = result && parseFloat(result[1]);
+            if (!version && /Trident\/7.0/i.test(USER_AGENT) && /rv:11.0/.test(USER_AGENT)) {
+                // IE 11 has a different user agent string than other IE versions
+                version = 11.0;
+            }
+            return version;
+        }();
+        IS_SAFARI = /Safari/i.test(USER_AGENT) && !IS_CHROME && !IS_ANDROID && !IS_EDGE;
+        IS_WINDOWS = /Windows/i.test(USER_AGENT);
+        IS_IPAD = /iPad/i.test(USER_AGENT) || IS_SAFARI && TOUCH_ENABLED && !/iPhone/i.test(USER_AGENT);
+        IS_IPHONE = /iPhone/i.test(USER_AGENT) && !IS_IPAD;
+    }
+
+    /**
+     * Whether or not this is an iOS device.
+     *
+     * @static
+     * @const
+     * @type {Boolean}
+     */
+    const IS_IOS = IS_IPHONE || IS_IPAD || IS_IPOD;
+
+    /**
+     * Whether or not this is any flavor of Safari - including iOS.
+     *
+     * @static
+     * @const
+     * @type {Boolean}
+     */
+    const IS_ANY_SAFARI = (IS_SAFARI || IS_IOS) && !IS_CHROME;
+
+    var browser = /*#__PURE__*/Object.freeze({
+        __proto__: null,
+        get IS_IPOD () { return IS_IPOD; },
+        get IOS_VERSION () { return IOS_VERSION; },
+        get IS_ANDROID () { return IS_ANDROID; },
+        get ANDROID_VERSION () { return ANDROID_VERSION; },
+        get IS_FIREFOX () { return IS_FIREFOX; },
+        get IS_EDGE () { return IS_EDGE; },
+        get IS_CHROMIUM () { return IS_CHROMIUM; },
+        get IS_CHROME () { return IS_CHROME; },
+        get CHROMIUM_VERSION () { return CHROMIUM_VERSION; },
+        get CHROME_VERSION () { return CHROME_VERSION; },
+        get IE_VERSION () { return IE_VERSION; },
+        get IS_SAFARI () { return IS_SAFARI; },
+        get IS_WINDOWS () { return IS_WINDOWS; },
+        get IS_IPAD () { return IS_IPAD; },
+        get IS_IPHONE () { return IS_IPHONE; },
+        TOUCH_ENABLED: TOUCH_ENABLED,
+        IS_IOS: IS_IOS,
+        IS_ANY_SAFARI: IS_ANY_SAFARI
+    });
+
+    /**
+     * @file dom.js
+     * @module dom
+     */
+
+    /**
+     * Detect if a value is a string with any non-whitespace characters.
+     *
+     * @private
+     * @param  {string} str
+     *         The string to check
      *
      * @return {boolean}
-     *         - True if the `Component` has the class.
-     *         - False if the `Component` does not have the class`
-     */
-    ;
-
-    _proto.hasClass = function hasClass$1(classToCheck) {
-      return hasClass(this.el_, classToCheck);
-    }
-    /**
-     * Add a CSS class name to the `Component`s element.
+     *         Will be `true` if the string is non-blank, `false` otherwise.
      *
-     * @param {string} classToAdd
-     *        CSS class name to add
      */
-    ;
-
-    _proto.addClass = function addClass$1(classToAdd) {
-      addClass(this.el_, classToAdd);
+    function isNonBlankString(str) {
+        // we use str.trim as it will trim any whitespace characters
+        // from the front or back of non-whitespace characters. aka
+        // Any string that contains non-whitespace characters will
+        // still contain them after `trim` but whitespace only strings
+        // will have a length of 0, failing this check.
+        return typeof str === 'string' && Boolean(str.trim());
     }
+
     /**
-     * Remove a CSS class name from the `Component`s element.
+     * Throws an error if the passed string has whitespace. This is used by
+     * class methods to be relatively consistent with the classList API.
      *
-     * @param {string} classToRemove
-     *        CSS class name to remove
+     * @private
+     * @param  {string} str
+     *         The string to check for whitespace.
+     *
+     * @throws {Error}
+     *         Throws an error if there is whitespace in the string.
      */
-    ;
-
-    _proto.removeClass = function removeClass$1(classToRemove) {
-      removeClass(this.el_, classToRemove);
+    function throwIfWhitespace(str) {
+        // str.indexOf instead of regex because str.indexOf is faster performance wise.
+        if (str.indexOf(' ') >= 0) {
+            throw new Error('class has illegal whitespace characters');
+        }
     }
+
     /**
-     * Add or remove a CSS class name from the component's element.
-     * - `classToToggle` gets added when {@link Component#hasClass} would return false.
-     * - `classToToggle` gets removed when {@link Component#hasClass} would return true.
+     * Whether the current DOM interface appears to be real (i.e. not simulated).
+     *
+     * @return {boolean}
+     *         Will be `true` if the DOM appears to be real, `false` otherwise.
+     */
+    function isReal() {
+        // Both document and window will never be undefined thanks to `global`.
+        return document === window.document;
+    }
+
+    /**
+     * Determines, via duck typing, whether or not a value is a DOM element.
+     *
+     * @param  {*} value
+     *         The value to check.
+     *
+     * @return {boolean}
+     *         Will be `true` if the value is a DOM element, `false` otherwise.
+     */
+    function isEl(value) {
+        return isObject$1(value) && value.nodeType === 1;
+    }
+
+    /**
+     * Determines if the current DOM is embedded in an iframe.
+     *
+     * @return {boolean}
+     *         Will be `true` if the DOM is embedded in an iframe, `false`
+     *         otherwise.
+     */
+    function isInFrame() {
+        // We need a try/catch here because Safari will throw errors when attempting
+        // to get either `parent` or `self`
+        try {
+            return window.parent !== window.self;
+        } catch (x) {
+            return true;
+        }
+    }
+
+    /**
+     * Creates functions to query the DOM using a given method.
+     *
+     * @private
+     * @param   {string} method
+     *          The method to create the query with.
+     *
+     * @return  {Function}
+     *          The query method
+     */
+    function createQuerier(method) {
+        return function (selector, context) {
+            if (!isNonBlankString(selector)) {
+                return document[method](null);
+            }
+            if (isNonBlankString(context)) {
+                context = document.querySelector(context);
+            }
+            const ctx = isEl(context) ? context : document;
+            return ctx[method] && ctx[method](selector);
+        };
+    }
+
+    /**
+     * Creates an element and applies properties, attributes, and inserts content.
+     *
+     * @param  {string} [tagName='div']
+     *         Name of tag to be created.
+     *
+     * @param  {Object} [properties={}]
+     *         Element properties to be applied.
+     *
+     * @param  {Object} [attributes={}]
+     *         Element attributes to be applied.
+     *
+     * @param {ContentDescriptor} [content]
+     *        A content descriptor object.
+     *
+     * @return {Element}
+     *         The element that was created.
+     */
+    function createEl(tagName = 'div', properties = {}, attributes = {}, content) {
+        const el = document.createElement(tagName);
+        Object.getOwnPropertyNames(properties).forEach(function (propName) {
+            const val = properties[propName];
+
+            // Handle textContent since it's not supported everywhere and we have a
+            // method for it.
+            if (propName === 'textContent') {
+                textContent(el, val);
+            } else if (el[propName] !== val || propName === 'tabIndex') {
+                el[propName] = val;
+            }
+        });
+        Object.getOwnPropertyNames(attributes).forEach(function (attrName) {
+            el.setAttribute(attrName, attributes[attrName]);
+        });
+        if (content) {
+            appendContent(el, content);
+        }
+        return el;
+    }
+
+    /**
+     * Injects text into an element, replacing any existing contents entirely.
+     *
+     * @param  {Element} el
+     *         The element to add text content into
+     *
+     * @param  {string} text
+     *         The text content to add.
+     *
+     * @return {Element}
+     *         The element with added text content.
+     */
+    function textContent(el, text) {
+        if (typeof el.textContent === 'undefined') {
+            el.innerText = text;
+        } else {
+            el.textContent = text;
+        }
+        return el;
+    }
+
+    /**
+     * Insert an element as the first child node of another
+     *
+     * @param {Element} child
+     *        Element to insert
+     *
+     * @param {Element} parent
+     *        Element to insert child into
+     */
+    function prependTo(child, parent) {
+        if (parent.firstChild) {
+            parent.insertBefore(child, parent.firstChild);
+        } else {
+            parent.appendChild(child);
+        }
+    }
+
+    /**
+     * Check if an element has a class name.
+     *
+     * @param  {Element} element
+     *         Element to check
+     *
+     * @param  {string} classToCheck
+     *         Class name to check for
+     *
+     * @return {boolean}
+     *         Will be `true` if the element has a class, `false` otherwise.
+     *
+     * @throws {Error}
+     *         Throws an error if `classToCheck` has white space.
+     */
+    function hasClass(element, classToCheck) {
+        throwIfWhitespace(classToCheck);
+        return element.classList.contains(classToCheck);
+    }
+
+    /**
+     * Add a class name to an element.
+     *
+     * @param  {Element} element
+     *         Element to add class name to.
+     *
+     * @param  {...string} classesToAdd
+     *         One or more class name to add.
+     *
+     * @return {Element}
+     *         The DOM element with the added class name.
+     */
+    function addClass(element, ...classesToAdd) {
+        element.classList.add(...classesToAdd.reduce((prev, current) => prev.concat(current.split(/\s+/)), []));
+        return element;
+    }
+
+    /**
+     * Remove a class name from an element.
+     *
+     * @param  {Element} element
+     *         Element to remove a class name from.
+     *
+     * @param  {...string} classesToRemove
+     *         One or more class name to remove.
+     *
+     * @return {Element}
+     *         The DOM element with class name removed.
+     */
+    function removeClass(element, ...classesToRemove) {
+        // Protect in case the player gets disposed
+        if (!element) {
+            log$1.warn("removeClass was called with an element that doesn't exist");
+            return null;
+        }
+        element.classList.remove(...classesToRemove.reduce((prev, current) => prev.concat(current.split(/\s+/)), []));
+        return element;
+    }
+
+    /**
+     * The callback definition for toggleClass.
+     *
+     * @callback module:dom~PredicateCallback
+     * @param    {Element} element
+     *           The DOM element of the Component.
+     *
+     * @param    {string} classToToggle
+     *           The `className` that wants to be toggled
+     *
+     * @return   {boolean|undefined}
+     *           If `true` is returned, the `classToToggle` will be added to the
+     *           `element`. If `false`, the `classToToggle` will be removed from
+     *           the `element`. If `undefined`, the callback will be ignored.
+     */
+
+    /**
+     * Adds or removes a class name to/from an element depending on an optional
+     * condition or the presence/absence of the class name.
+     *
+     * @param  {Element} element
+     *         The element to toggle a class name on.
      *
      * @param  {string} classToToggle
-     *         The class to add or remove based on (@link Component#hasClass}
+     *         The class that should be toggled.
      *
-     * @param  {boolean|Dom~predicate} [predicate]
-     *         An {@link Dom~predicate} function or a boolean
-     */
-    ;
-
-    _proto.toggleClass = function toggleClass$1(classToToggle, predicate) {
-      toggleClass(this.el_, classToToggle, predicate);
-    }
-    /**
-     * Show the `Component`s element if it is hidden by removing the
-     * 'vjs-hidden' class name from it.
-     */
-    ;
-
-    _proto.show = function show() {
-      this.removeClass('vjs-hidden');
-    }
-    /**
-     * Hide the `Component`s element if it is currently showing by adding the
-     * 'vjs-hidden` class name to it.
-     */
-    ;
-
-    _proto.hide = function hide() {
-      this.addClass('vjs-hidden');
-    }
-    /**
-     * Lock a `Component`s element in its visible state by adding the 'vjs-lock-showing'
-     * class name to it. Used during fadeIn/fadeOut.
+     * @param  {boolean|module:dom~PredicateCallback} [predicate]
+     *         See the return value for {@link module:dom~PredicateCallback}
      *
-     * @private
+     * @return {Element}
+     *         The element with a class that has been toggled.
      */
-    ;
-
-    _proto.lockShowing = function lockShowing() {
-      this.addClass('vjs-lock-showing');
+    function toggleClass(element, classToToggle, predicate) {
+        if (typeof predicate === 'function') {
+            predicate = predicate(element, classToToggle);
+        }
+        if (typeof predicate !== 'boolean') {
+            predicate = undefined;
+        }
+        classToToggle.split(/\s+/).forEach(className => element.classList.toggle(className, predicate));
+        return element;
     }
+
     /**
-     * Unlock a `Component`s element from its visible state by removing the 'vjs-lock-showing'
-     * class name from it. Used during fadeIn/fadeOut.
+     * Apply attributes to an HTML element.
      *
-     * @private
+     * @param {Element} el
+     *        Element to add attributes to.
+     *
+     * @param {Object} [attributes]
+     *        Attributes to be applied.
      */
-    ;
-
-    _proto.unlockShowing = function unlockShowing() {
-      this.removeClass('vjs-lock-showing');
+    function setAttributes(el, attributes) {
+        Object.getOwnPropertyNames(attributes).forEach(function (attrName) {
+            const attrValue = attributes[attrName];
+            if (attrValue === null || typeof attrValue === 'undefined' || attrValue === false) {
+                el.removeAttribute(attrName);
+            } else {
+                el.setAttribute(attrName, attrValue === true ? '' : attrValue);
+            }
+        });
     }
+
     /**
-     * Get the value of an attribute on the `Component`s element.
+     * Get an element's attribute values, as defined on the HTML tag.
+     *
+     * Attributes are not the same as properties. They're defined on the tag
+     * or with setAttribute.
+     *
+     * @param  {Element} tag
+     *         Element from which to get tag attributes.
+     *
+     * @return {Object}
+     *         All attributes of the element. Boolean attributes will be `true` or
+     *         `false`, others will be strings.
+     */
+    function getAttributes(tag) {
+        const obj = {};
+
+        // known boolean attributes
+        // we can check for matching boolean properties, but not all browsers
+        // and not all tags know about these attributes, so, we still want to check them manually
+        const knownBooleans = ',' + 'autoplay,controls,playsinline,loop,muted,default,defaultMuted' + ',';
+        if (tag && tag.attributes && tag.attributes.length > 0) {
+            const attrs = tag.attributes;
+            for (let i = attrs.length - 1; i >= 0; i--) {
+                const attrName = attrs[i].name;
+                let attrVal = attrs[i].value;
+
+                // check for known booleans
+                // the matching element property will return a value for typeof
+                if (typeof tag[attrName] === 'boolean' || knownBooleans.indexOf(',' + attrName + ',') !== -1) {
+                    // the value of an included boolean attribute is typically an empty
+                    // string ('') which would equal false if we just check for a false value.
+                    // we also don't want support bad code like autoplay='false'
+                    attrVal = attrVal !== null ? true : false;
+                }
+                obj[attrName] = attrVal;
+            }
+        }
+        return obj;
+    }
+
+    /**
+     * Get the value of an element's attribute.
+     *
+     * @param {Element} el
+     *        A DOM element.
      *
      * @param {string} attribute
-     *        Name of the attribute to get the value from.
+     *        Attribute to get the value of.
      *
-     * @return {string|null}
-     *         - The value of the attribute that was asked for.
-     *         - Can be an empty string on some browsers if the attribute does not exist
-     *           or has no value
-     *         - Most browsers will return null if the attibute does not exist or has
-     *           no value.
-     *
-     * @see [DOM API]{@link https://developer.mozilla.org/en-US/docs/Web/API/Element/getAttribute}
+     * @return {string}
+     *         The value of the attribute.
      */
-    ;
-
-    _proto.getAttribute = function getAttribute$1(attribute) {
-      return getAttribute(this.el_, attribute);
+    function getAttribute(el, attribute) {
+        return el.getAttribute(attribute);
     }
+
     /**
-     * Set the value of an attribute on the `Component`'s element
+     * Set the value of an element's attribute.
+     *
+     * @param {Element} el
+     *        A DOM element.
      *
      * @param {string} attribute
-     *        Name of the attribute to set.
+     *        Attribute to set.
      *
      * @param {string} value
      *        Value to set the attribute to.
-     *
-     * @see [DOM API]{@link https://developer.mozilla.org/en-US/docs/Web/API/Element/setAttribute}
      */
-    ;
-
-    _proto.setAttribute = function setAttribute$1(attribute, value) {
-      setAttribute(this.el_, attribute, value);
+    function setAttribute(el, attribute, value) {
+        el.setAttribute(attribute, value);
     }
+
     /**
-     * Remove an attribute from the `Component`s element.
+     * Remove an element's attribute.
+     *
+     * @param {Element} el
+     *        A DOM element.
      *
      * @param {string} attribute
-     *        Name of the attribute to remove.
-     *
-     * @see [DOM API]{@link https://developer.mozilla.org/en-US/docs/Web/API/Element/removeAttribute}
+     *        Attribute to remove.
      */
-    ;
-
-    _proto.removeAttribute = function removeAttribute$1(attribute) {
-      removeAttribute(this.el_, attribute);
+    function removeAttribute(el, attribute) {
+        el.removeAttribute(attribute);
     }
-    /**
-     * Get or set the width of the component based upon the CSS styles.
-     * See {@link Component#dimension} for more detailed information.
-     *
-     * @param {number|string} [num]
-     *        The width that you want to set postfixed with '%', 'px' or nothing.
-     *
-     * @param {boolean} [skipListeners]
-     *        Skip the componentresize event trigger
-     *
-     * @return {number|string}
-     *         The width when getting, zero if there is no width. Can be a string
-     *           postpixed with '%' or 'px'.
-     */
-    ;
-
-    _proto.width = function width(num, skipListeners) {
-      return this.dimension('width', num, skipListeners);
-    }
-    /**
-     * Get or set the height of the component based upon the CSS styles.
-     * See {@link Component#dimension} for more detailed information.
-     *
-     * @param {number|string} [num]
-     *        The height that you want to set postfixed with '%', 'px' or nothing.
-     *
-     * @param {boolean} [skipListeners]
-     *        Skip the componentresize event trigger
-     *
-     * @return {number|string}
-     *         The width when getting, zero if there is no width. Can be a string
-     *         postpixed with '%' or 'px'.
-     */
-    ;
-
-    _proto.height = function height(num, skipListeners) {
-      return this.dimension('height', num, skipListeners);
-    }
-    /**
-     * Set both the width and height of the `Component` element at the same time.
-     *
-     * @param  {number|string} width
-     *         Width to set the `Component`s element to.
-     *
-     * @param  {number|string} height
-     *         Height to set the `Component`s element to.
-     */
-    ;
-
-    _proto.dimensions = function dimensions(width, height) {
-      // Skip componentresize listeners on width for optimization
-      this.width(width, true);
-      this.height(height);
-    }
-    /**
-     * Get or set width or height of the `Component` element. This is the shared code
-     * for the {@link Component#width} and {@link Component#height}.
-     *
-     * Things to know:
-     * - If the width or height in an number this will return the number postfixed with 'px'.
-     * - If the width/height is a percent this will return the percent postfixed with '%'
-     * - Hidden elements have a width of 0 with `window.getComputedStyle`. This function
-     *   defaults to the `Component`s `style.width` and falls back to `window.getComputedStyle`.
-     *   See [this]{@link http://www.foliotek.com/devblog/getting-the-width-of-a-hidden-element-with-jquery-using-width/}
-     *   for more information
-     * - If you want the computed style of the component, use {@link Component#currentWidth}
-     *   and {@link {Component#currentHeight}
-     *
-     * @fires Component#componentresize
-     *
-     * @param {string} widthOrHeight
-     8        'width' or 'height'
-     *
-     * @param  {number|string} [num]
-     8         New dimension
-     *
-     * @param  {boolean} [skipListeners]
-     *         Skip componentresize event trigger
-     *
-     * @return {number}
-     *         The dimension when getting or 0 if unset
-     */
-    ;
-
-    _proto.dimension = function dimension(widthOrHeight, num, skipListeners) {
-      if (num !== undefined) {
-        // Set to zero if null or literally NaN (NaN !== NaN)
-        if (num === null || num !== num) {
-          num = 0;
-        } // Check if using css width/height (% or px) and adjust
-
-
-        if (('' + num).indexOf('%') !== -1 || ('' + num).indexOf('px') !== -1) {
-          this.el_.style[widthOrHeight] = num;
-        } else if (num === 'auto') {
-          this.el_.style[widthOrHeight] = '';
-        } else {
-          this.el_.style[widthOrHeight] = num + 'px';
-        } // skipListeners allows us to avoid triggering the resize event when setting both width and height
-
-
-        if (!skipListeners) {
-          /**
-           * Triggered when a component is resized.
-           *
-           * @event Component#componentresize
-           * @type {EventTarget~Event}
-           */
-          this.trigger('componentresize');
-        }
-
-        return;
-      } // Not setting a value, so getting it
-      // Make sure element exists
-
-
-      if (!this.el_) {
-        return 0;
-      } // Get dimension value from style
-
-
-      var val = this.el_.style[widthOrHeight];
-      var pxIndex = val.indexOf('px');
-
-      if (pxIndex !== -1) {
-        // Return the pixel value with no 'px'
-        return parseInt(val.slice(0, pxIndex), 10);
-      } // No px so using % or no style was set, so falling back to offsetWidth/height
-      // If component has display:none, offset will return 0
-      // TODO: handle display:none and no dimension style using px
-
-
-      return parseInt(this.el_['offset' + toTitleCase$1(widthOrHeight)], 10);
-    }
-    /**
-     * Get the computed width or the height of the component's element.
-     *
-     * Uses `window.getComputedStyle`.
-     *
-     * @param {string} widthOrHeight
-     *        A string containing 'width' or 'height'. Whichever one you want to get.
-     *
-     * @return {number}
-     *         The dimension that gets asked for or 0 if nothing was set
-     *         for that dimension.
-     */
-    ;
-
-    _proto.currentDimension = function currentDimension(widthOrHeight) {
-      var computedWidthOrHeight = 0;
-
-      if (widthOrHeight !== 'width' && widthOrHeight !== 'height') {
-        throw new Error('currentDimension only accepts width or height value');
-      }
-
-      computedWidthOrHeight = computedStyle(this.el_, widthOrHeight); // remove 'px' from variable and parse as integer
-
-      computedWidthOrHeight = parseFloat(computedWidthOrHeight); // if the computed value is still 0, it's possible that the browser is lying
-      // and we want to check the offset values.
-      // This code also runs wherever getComputedStyle doesn't exist.
-
-      if (computedWidthOrHeight === 0 || isNaN(computedWidthOrHeight)) {
-        var rule = "offset" + toTitleCase$1(widthOrHeight);
-        computedWidthOrHeight = this.el_[rule];
-      }
-
-      return computedWidthOrHeight;
-    }
-    /**
-     * An object that contains width and height values of the `Component`s
-     * computed style. Uses `window.getComputedStyle`.
-     *
-     * @typedef {Object} Component~DimensionObject
-     *
-     * @property {number} width
-     *           The width of the `Component`s computed style.
-     *
-     * @property {number} height
-     *           The height of the `Component`s computed style.
-     */
 
     /**
-     * Get an object that contains computed width and height values of the
-     * component's element.
-     *
-     * Uses `window.getComputedStyle`.
-     *
-     * @return {Component~DimensionObject}
-     *         The computed dimensions of the component's element.
+     * Attempt to block the ability to select text.
      */
-    ;
-
-    _proto.currentDimensions = function currentDimensions() {
-      return {
-        width: this.currentDimension('width'),
-        height: this.currentDimension('height')
-      };
-    }
-    /**
-     * Get the computed width of the component's element.
-     *
-     * Uses `window.getComputedStyle`.
-     *
-     * @return {number}
-     *         The computed width of the component's element.
-     */
-    ;
-
-    _proto.currentWidth = function currentWidth() {
-      return this.currentDimension('width');
-    }
-    /**
-     * Get the computed height of the component's element.
-     *
-     * Uses `window.getComputedStyle`.
-     *
-     * @return {number}
-     *         The computed height of the component's element.
-     */
-    ;
-
-    _proto.currentHeight = function currentHeight() {
-      return this.currentDimension('height');
-    }
-    /**
-     * Set the focus to this component
-     */
-    ;
-
-    _proto.focus = function focus() {
-      this.el_.focus();
-    }
-    /**
-     * Remove the focus from this component
-     */
-    ;
-
-    _proto.blur = function blur() {
-      this.el_.blur();
-    }
-    /**
-     * When this Component receives a `keydown` event which it does not process,
-     *  it passes the event to the Player for handling.
-     *
-     * @param {EventTarget~Event} event
-     *        The `keydown` event that caused this function to be called.
-     */
-    ;
-
-    _proto.handleKeyDown = function handleKeyDown(event) {
-      if (this.player_) {
-        // We only stop propagation here because we want unhandled events to fall
-        // back to the browser. Exclude Tab for focus trapping.
-        if (!keycode.isEventKey(event, 'Tab')) {
-          event.stopPropagation();
-        }
-
-        this.player_.handleKeyDown(event);
-      }
-    }
-    /**
-     * Many components used to have a `handleKeyPress` method, which was poorly
-     * named because it listened to a `keydown` event. This method name now
-     * delegates to `handleKeyDown`. This means anyone calling `handleKeyPress`
-     * will not see their method calls stop working.
-     *
-     * @param {EventTarget~Event} event
-     *        The event that caused this function to be called.
-     */
-    ;
-
-    _proto.handleKeyPress = function handleKeyPress(event) {
-      this.handleKeyDown(event);
-    }
-    /**
-     * Emit a 'tap' events when touch event support gets detected. This gets used to
-     * support toggling the controls through a tap on the video. They get enabled
-     * because every sub-component would have extra overhead otherwise.
-     *
-     * @private
-     * @fires Component#tap
-     * @listens Component#touchstart
-     * @listens Component#touchmove
-     * @listens Component#touchleave
-     * @listens Component#touchcancel
-     * @listens Component#touchend
-      */
-    ;
-
-    _proto.emitTapEvents = function emitTapEvents() {
-      // Track the start time so we can determine how long the touch lasted
-      var touchStart = 0;
-      var firstTouch = null; // Maximum movement allowed during a touch event to still be considered a tap
-      // Other popular libs use anywhere from 2 (hammer.js) to 15,
-      // so 10 seems like a nice, round number.
-
-      var tapMovementThreshold = 10; // The maximum length a touch can be while still being considered a tap
-
-      var touchTimeThreshold = 200;
-      var couldBeTap;
-      this.on('touchstart', function (event) {
-        // If more than one finger, don't consider treating this as a click
-        if (event.touches.length === 1) {
-          // Copy pageX/pageY from the object
-          firstTouch = {
-            pageX: event.touches[0].pageX,
-            pageY: event.touches[0].pageY
-          }; // Record start time so we can detect a tap vs. "touch and hold"
-
-          touchStart = window.performance.now(); // Reset couldBeTap tracking
-
-          couldBeTap = true;
-        }
-      });
-      this.on('touchmove', function (event) {
-        // If more than one finger, don't consider treating this as a click
-        if (event.touches.length > 1) {
-          couldBeTap = false;
-        } else if (firstTouch) {
-          // Some devices will throw touchmoves for all but the slightest of taps.
-          // So, if we moved only a small distance, this could still be a tap
-          var xdiff = event.touches[0].pageX - firstTouch.pageX;
-          var ydiff = event.touches[0].pageY - firstTouch.pageY;
-          var touchDistance = Math.sqrt(xdiff * xdiff + ydiff * ydiff);
-
-          if (touchDistance > tapMovementThreshold) {
-            couldBeTap = false;
-          }
-        }
-      });
-
-      var noTap = function noTap() {
-        couldBeTap = false;
-      }; // TODO: Listen to the original target. http://youtu.be/DujfpXOKUp8?t=13m8s
-
-
-      this.on('touchleave', noTap);
-      this.on('touchcancel', noTap); // When the touch ends, measure how long it took and trigger the appropriate
-      // event
-
-      this.on('touchend', function (event) {
-        firstTouch = null; // Proceed only if the touchmove/leave/cancel event didn't happen
-
-        if (couldBeTap === true) {
-          // Measure how long the touch lasted
-          var touchTime = window.performance.now() - touchStart; // Make sure the touch was less than the threshold to be considered a tap
-
-          if (touchTime < touchTimeThreshold) {
-            // Don't let browser turn this into a click
-            event.preventDefault();
-            /**
-             * Triggered when a `Component` is tapped.
-             *
-             * @event Component#tap
-             * @type {EventTarget~Event}
-             */
-
-            this.trigger('tap'); // It may be good to copy the touchend event object and change the
-            // type to tap, if the other event properties aren't exact after
-            // Events.fixEvent runs (e.g. event.target)
-          }
-        }
-      });
-    }
-    /**
-     * This function reports user activity whenever touch events happen. This can get
-     * turned off by any sub-components that wants touch events to act another way.
-     *
-     * Report user touch activity when touch events occur. User activity gets used to
-     * determine when controls should show/hide. It is simple when it comes to mouse
-     * events, because any mouse event should show the controls. So we capture mouse
-     * events that bubble up to the player and report activity when that happens.
-     * With touch events it isn't as easy as `touchstart` and `touchend` toggle player
-     * controls. So touch events can't help us at the player level either.
-     *
-     * User activity gets checked asynchronously. So what could happen is a tap event
-     * on the video turns the controls off. Then the `touchend` event bubbles up to
-     * the player. Which, if it reported user activity, would turn the controls right
-     * back on. We also don't want to completely block touch events from bubbling up.
-     * Furthermore a `touchmove` event and anything other than a tap, should not turn
-     * controls back on.
-     *
-     * @listens Component#touchstart
-     * @listens Component#touchmove
-     * @listens Component#touchend
-     * @listens Component#touchcancel
-     */
-    ;
-
-    _proto.enableTouchActivity = function enableTouchActivity() {
-      // Don't continue if the root player doesn't support reporting user activity
-      if (!this.player() || !this.player().reportUserActivity) {
-        return;
-      } // listener for reporting that the user is active
-
-
-      var report = bind(this.player(), this.player().reportUserActivity);
-      var touchHolding;
-      this.on('touchstart', function () {
-        report(); // For as long as the they are touching the device or have their mouse down,
-        // we consider them active even if they're not moving their finger or mouse.
-        // So we want to continue to update that they are active
-
-        this.clearInterval(touchHolding); // report at the same interval as activityCheck
-
-        touchHolding = this.setInterval(report, 250);
-      });
-
-      var touchEnd = function touchEnd(event) {
-        report(); // stop the interval that maintains activity if the touch is holding
-
-        this.clearInterval(touchHolding);
-      };
-
-      this.on('touchmove', report);
-      this.on('touchend', touchEnd);
-      this.on('touchcancel', touchEnd);
-    }
-    /**
-     * A callback that has no parameters and is bound into `Component`s context.
-     *
-     * @callback Component~GenericCallback
-     * @this Component
-     */
-
-    /**
-     * Creates a function that runs after an `x` millisecond timeout. This function is a
-     * wrapper around `window.setTimeout`. There are a few reasons to use this one
-     * instead though:
-     * 1. It gets cleared via  {@link Component#clearTimeout} when
-     *    {@link Component#dispose} gets called.
-     * 2. The function callback will gets turned into a {@link Component~GenericCallback}
-     *
-     * > Note: You can't use `window.clearTimeout` on the id returned by this function. This
-     *         will cause its dispose listener not to get cleaned up! Please use
-     *         {@link Component#clearTimeout} or {@link Component#dispose} instead.
-     *
-     * @param {Component~GenericCallback} fn
-     *        The function that will be run after `timeout`.
-     *
-     * @param {number} timeout
-     *        Timeout in milliseconds to delay before executing the specified function.
-     *
-     * @return {number}
-     *         Returns a timeout ID that gets used to identify the timeout. It can also
-     *         get used in {@link Component#clearTimeout} to clear the timeout that
-     *         was set.
-     *
-     * @listens Component#dispose
-     * @see [Similar to]{@link https://developer.mozilla.org/en-US/docs/Web/API/WindowTimers/setTimeout}
-     */
-    ;
-
-    _proto.setTimeout = function setTimeout(fn, timeout) {
-      var _this3 = this;
-
-      // declare as variables so they are properly available in timeout function
-      // eslint-disable-next-line
-      var timeoutId;
-      fn = bind(this, fn);
-      this.clearTimersOnDispose_();
-      timeoutId = window.setTimeout(function () {
-        if (_this3.setTimeoutIds_.has(timeoutId)) {
-          _this3.setTimeoutIds_["delete"](timeoutId);
-        }
-
-        fn();
-      }, timeout);
-      this.setTimeoutIds_.add(timeoutId);
-      return timeoutId;
-    }
-    /**
-     * Clears a timeout that gets created via `window.setTimeout` or
-     * {@link Component#setTimeout}. If you set a timeout via {@link Component#setTimeout}
-     * use this function instead of `window.clearTimout`. If you don't your dispose
-     * listener will not get cleaned up until {@link Component#dispose}!
-     *
-     * @param {number} timeoutId
-     *        The id of the timeout to clear. The return value of
-     *        {@link Component#setTimeout} or `window.setTimeout`.
-     *
-     * @return {number}
-     *         Returns the timeout id that was cleared.
-     *
-     * @see [Similar to]{@link https://developer.mozilla.org/en-US/docs/Web/API/WindowTimers/clearTimeout}
-     */
-    ;
-
-    _proto.clearTimeout = function clearTimeout(timeoutId) {
-      if (this.setTimeoutIds_.has(timeoutId)) {
-        this.setTimeoutIds_["delete"](timeoutId);
-        window.clearTimeout(timeoutId);
-      }
-
-      return timeoutId;
-    }
-    /**
-     * Creates a function that gets run every `x` milliseconds. This function is a wrapper
-     * around `window.setInterval`. There are a few reasons to use this one instead though.
-     * 1. It gets cleared via  {@link Component#clearInterval} when
-     *    {@link Component#dispose} gets called.
-     * 2. The function callback will be a {@link Component~GenericCallback}
-     *
-     * @param {Component~GenericCallback} fn
-     *        The function to run every `x` seconds.
-     *
-     * @param {number} interval
-     *        Execute the specified function every `x` milliseconds.
-     *
-     * @return {number}
-     *         Returns an id that can be used to identify the interval. It can also be be used in
-     *         {@link Component#clearInterval} to clear the interval.
-     *
-     * @listens Component#dispose
-     * @see [Similar to]{@link https://developer.mozilla.org/en-US/docs/Web/API/WindowTimers/setInterval}
-     */
-    ;
-
-    _proto.setInterval = function setInterval(fn, interval) {
-      fn = bind(this, fn);
-      this.clearTimersOnDispose_();
-      var intervalId = window.setInterval(fn, interval);
-      this.setIntervalIds_.add(intervalId);
-      return intervalId;
-    }
-    /**
-     * Clears an interval that gets created via `window.setInterval` or
-     * {@link Component#setInterval}. If you set an inteval via {@link Component#setInterval}
-     * use this function instead of `window.clearInterval`. If you don't your dispose
-     * listener will not get cleaned up until {@link Component#dispose}!
-     *
-     * @param {number} intervalId
-     *        The id of the interval to clear. The return value of
-     *        {@link Component#setInterval} or `window.setInterval`.
-     *
-     * @return {number}
-     *         Returns the interval id that was cleared.
-     *
-     * @see [Similar to]{@link https://developer.mozilla.org/en-US/docs/Web/API/WindowTimers/clearInterval}
-     */
-    ;
-
-    _proto.clearInterval = function clearInterval(intervalId) {
-      if (this.setIntervalIds_.has(intervalId)) {
-        this.setIntervalIds_["delete"](intervalId);
-        window.clearInterval(intervalId);
-      }
-
-      return intervalId;
-    }
-    /**
-     * Queues up a callback to be passed to requestAnimationFrame (rAF), but
-     * with a few extra bonuses:
-     *
-     * - Supports browsers that do not support rAF by falling back to
-     *   {@link Component#setTimeout}.
-     *
-     * - The callback is turned into a {@link Component~GenericCallback} (i.e.
-     *   bound to the component).
-     *
-     * - Automatic cancellation of the rAF callback is handled if the component
-     *   is disposed before it is called.
-     *
-     * @param  {Component~GenericCallback} fn
-     *         A function that will be bound to this component and executed just
-     *         before the browser's next repaint.
-     *
-     * @return {number}
-     *         Returns an rAF ID that gets used to identify the timeout. It can
-     *         also be used in {@link Component#cancelAnimationFrame} to cancel
-     *         the animation frame callback.
-     *
-     * @listens Component#dispose
-     * @see [Similar to]{@link https://developer.mozilla.org/en-US/docs/Web/API/window/requestAnimationFrame}
-     */
-    ;
-
-    _proto.requestAnimationFrame = function requestAnimationFrame(fn) {
-      var _this4 = this;
-
-      // Fall back to using a timer.
-      if (!this.supportsRaf_) {
-        return this.setTimeout(fn, 1000 / 60);
-      }
-
-      this.clearTimersOnDispose_(); // declare as variables so they are properly available in rAF function
-      // eslint-disable-next-line
-
-      var id;
-      fn = bind(this, fn);
-      id = window.requestAnimationFrame(function () {
-        if (_this4.rafIds_.has(id)) {
-          _this4.rafIds_["delete"](id);
-        }
-
-        fn();
-      });
-      this.rafIds_.add(id);
-      return id;
-    }
-    /**
-     * Request an animation frame, but only one named animation
-     * frame will be queued. Another will never be added until
-     * the previous one finishes.
-     *
-     * @param {string} name
-     *        The name to give this requestAnimationFrame
-     *
-     * @param  {Component~GenericCallback} fn
-     *         A function that will be bound to this component and executed just
-     *         before the browser's next repaint.
-     */
-    ;
-
-    _proto.requestNamedAnimationFrame = function requestNamedAnimationFrame(name, fn) {
-      var _this5 = this;
-
-      if (this.namedRafs_.has(name)) {
-        return;
-      }
-
-      this.clearTimersOnDispose_();
-      fn = bind(this, fn);
-      var id = this.requestAnimationFrame(function () {
-        fn();
-
-        if (_this5.namedRafs_.has(name)) {
-          _this5.namedRafs_["delete"](name);
-        }
-      });
-      this.namedRafs_.set(name, id);
-      return name;
-    }
-    /**
-     * Cancels a current named animation frame if it exists.
-     *
-     * @param {string} name
-     *        The name of the requestAnimationFrame to cancel.
-     */
-    ;
-
-    _proto.cancelNamedAnimationFrame = function cancelNamedAnimationFrame(name) {
-      if (!this.namedRafs_.has(name)) {
-        return;
-      }
-
-      this.cancelAnimationFrame(this.namedRafs_.get(name));
-      this.namedRafs_["delete"](name);
-    }
-    /**
-     * Cancels a queued callback passed to {@link Component#requestAnimationFrame}
-     * (rAF).
-     *
-     * If you queue an rAF callback via {@link Component#requestAnimationFrame},
-     * use this function instead of `window.cancelAnimationFrame`. If you don't,
-     * your dispose listener will not get cleaned up until {@link Component#dispose}!
-     *
-     * @param {number} id
-     *        The rAF ID to clear. The return value of {@link Component#requestAnimationFrame}.
-     *
-     * @return {number}
-     *         Returns the rAF ID that was cleared.
-     *
-     * @see [Similar to]{@link https://developer.mozilla.org/en-US/docs/Web/API/window/cancelAnimationFrame}
-     */
-    ;
-
-    _proto.cancelAnimationFrame = function cancelAnimationFrame(id) {
-      // Fall back to using a timer.
-      if (!this.supportsRaf_) {
-        return this.clearTimeout(id);
-      }
-
-      if (this.rafIds_.has(id)) {
-        this.rafIds_["delete"](id);
-        window.cancelAnimationFrame(id);
-      }
-
-      return id;
-    }
-    /**
-     * A function to setup `requestAnimationFrame`, `setTimeout`,
-     * and `setInterval`, clearing on dispose.
-     *
-     * > Previously each timer added and removed dispose listeners on it's own.
-     * For better performance it was decided to batch them all, and use `Set`s
-     * to track outstanding timer ids.
-     *
-     * @private
-     */
-    ;
-
-    _proto.clearTimersOnDispose_ = function clearTimersOnDispose_() {
-      var _this6 = this;
-
-      if (this.clearingTimersOnDispose_) {
-        return;
-      }
-
-      this.clearingTimersOnDispose_ = true;
-      this.one('dispose', function () {
-        [['namedRafs_', 'cancelNamedAnimationFrame'], ['rafIds_', 'cancelAnimationFrame'], ['setTimeoutIds_', 'clearTimeout'], ['setIntervalIds_', 'clearInterval']].forEach(function (_ref) {
-          var idName = _ref[0],
-              cancelName = _ref[1];
-
-          // for a `Set` key will actually be the value again
-          // so forEach((val, val) =>` but for maps we want to use
-          // the key.
-          _this6[idName].forEach(function (val, key) {
-            return _this6[cancelName](key);
-          });
-        });
-        _this6.clearingTimersOnDispose_ = false;
-      });
-    }
-    /**
-     * Register a `Component` with `videojs` given the name and the component.
-     *
-     * > NOTE: {@link Tech}s should not be registered as a `Component`. {@link Tech}s
-     *         should be registered using {@link Tech.registerTech} or
-     *         {@link videojs:videojs.registerTech}.
-     *
-     * > NOTE: This function can also be seen on videojs as
-     *         {@link videojs:videojs.registerComponent}.
-     *
-     * @param {string} name
-     *        The name of the `Component` to register.
-     *
-     * @param {Component} ComponentToRegister
-     *        The `Component` class to register.
-     *
-     * @return {Component}
-     *         The `Component` that was registered.
-     */
-    ;
-
-    Component.registerComponent = function registerComponent(name, ComponentToRegister) {
-      if (typeof name !== 'string' || !name) {
-        throw new Error("Illegal component name, \"" + name + "\"; must be a non-empty string.");
-      }
-
-      var Tech = Component.getComponent('Tech'); // We need to make sure this check is only done if Tech has been registered.
-
-      var isTech = Tech && Tech.isTech(ComponentToRegister);
-      var isComp = Component === ComponentToRegister || Component.prototype.isPrototypeOf(ComponentToRegister.prototype);
-
-      if (isTech || !isComp) {
-        var reason;
-
-        if (isTech) {
-          reason = 'techs must be registered using Tech.registerTech()';
-        } else {
-          reason = 'must be a Component subclass';
-        }
-
-        throw new Error("Illegal component, \"" + name + "\"; " + reason + ".");
-      }
-
-      name = toTitleCase$1(name);
-
-      if (!Component.components_) {
-        Component.components_ = {};
-      }
-
-      var Player = Component.getComponent('Player');
-
-      if (name === 'Player' && Player && Player.players) {
-        var players = Player.players;
-        var playerNames = Object.keys(players); // If we have players that were disposed, then their name will still be
-        // in Players.players. So, we must loop through and verify that the value
-        // for each item is not null. This allows registration of the Player component
-        // after all players have been disposed or before any were created.
-
-        if (players && playerNames.length > 0 && playerNames.map(function (pname) {
-          return players[pname];
-        }).every(Boolean)) {
-          throw new Error('Can not register Player component after player has been created.');
-        }
-      }
-
-      Component.components_[name] = ComponentToRegister;
-      Component.components_[toLowerCase(name)] = ComponentToRegister;
-      return ComponentToRegister;
-    }
-    /**
-     * Get a `Component` based on the name it was registered with.
-     *
-     * @param {string} name
-     *        The Name of the component to get.
-     *
-     * @return {Component}
-     *         The `Component` that got registered under the given name.
-     */
-    ;
-
-    Component.getComponent = function getComponent(name) {
-      if (!name || !Component.components_) {
-        return;
-      }
-
-      return Component.components_[name];
-    };
-
-    return Component;
-  }();
-  /**
-   * Whether or not this component supports `requestAnimationFrame`.
-   *
-   * This is exposed primarily for testing purposes.
-   *
-   * @private
-   * @type {Boolean}
-   */
-
-
-  Component$1.prototype.supportsRaf_ = typeof window.requestAnimationFrame === 'function' && typeof window.cancelAnimationFrame === 'function';
-  Component$1.registerComponent('Component', Component$1);
-
-  function _assertThisInitialized(self) {
-    if (self === void 0) {
-      throw new ReferenceError("this hasn't been initialised - super() hasn't been called");
-    }
-
-    return self;
-  }
-
-  var assertThisInitialized = _assertThisInitialized;
-
-  function _inheritsLoose(subClass, superClass) {
-    subClass.prototype = Object.create(superClass.prototype);
-    subClass.prototype.constructor = subClass;
-    subClass.__proto__ = superClass;
-  }
-
-  var inheritsLoose = _inheritsLoose;
-
-  /**
-   * @file time-ranges.js
-   * @module time-ranges
-   */
-
-  /**
-   * Returns the time for the specified index at the start or end
-   * of a TimeRange object.
-   *
-   * @typedef    {Function} TimeRangeIndex
-   *
-   * @param      {number} [index=0]
-   *             The range number to return the time for.
-   *
-   * @return     {number}
-   *             The time offset at the specified index.
-   *
-   * @deprecated The index argument must be provided.
-   *             In the future, leaving it out will throw an error.
-   */
-
-  /**
-   * An object that contains ranges of time.
-   *
-   * @typedef  {Object} TimeRange
-   *
-   * @property {number} length
-   *           The number of time ranges represented by this object.
-   *
-   * @property {module:time-ranges~TimeRangeIndex} start
-   *           Returns the time offset at which a specified time range begins.
-   *
-   * @property {module:time-ranges~TimeRangeIndex} end
-   *           Returns the time offset at which a specified time range ends.
-   *
-   * @see https://developer.mozilla.org/en-US/docs/Web/API/TimeRanges
-   */
-
-  /**
-   * Check if any of the time ranges are over the maximum index.
-   *
-   * @private
-   * @param   {string} fnName
-   *          The function name to use for logging
-   *
-   * @param   {number} index
-   *          The index to check
-   *
-   * @param   {number} maxIndex
-   *          The maximum possible index
-   *
-   * @throws  {Error} if the timeRanges provided are over the maxIndex
-   */
-  function rangeCheck(fnName, index, maxIndex) {
-    if (typeof index !== 'number' || index < 0 || index > maxIndex) {
-      throw new Error("Failed to execute '" + fnName + "' on 'TimeRanges': The index provided (" + index + ") is non-numeric or out of bounds (0-" + maxIndex + ").");
-    }
-  }
-  /**
-   * Get the time for the specified index at the start or end
-   * of a TimeRange object.
-   *
-   * @private
-   * @param      {string} fnName
-   *             The function name to use for logging
-   *
-   * @param      {string} valueIndex
-   *             The property that should be used to get the time. should be
-   *             'start' or 'end'
-   *
-   * @param      {Array} ranges
-   *             An array of time ranges
-   *
-   * @param      {Array} [rangeIndex=0]
-   *             The index to start the search at
-   *
-   * @return     {number}
-   *             The time that offset at the specified index.
-   *
-   * @deprecated rangeIndex must be set to a value, in the future this will throw an error.
-   * @throws     {Error} if rangeIndex is more than the length of ranges
-   */
-
-
-  function getRange(fnName, valueIndex, ranges, rangeIndex) {
-    rangeCheck(fnName, rangeIndex, ranges.length - 1);
-    return ranges[rangeIndex][valueIndex];
-  }
-  /**
-   * Create a time range object given ranges of time.
-   *
-   * @private
-   * @param   {Array} [ranges]
-   *          An array of time ranges.
-   */
-
-
-  function createTimeRangesObj(ranges) {
-    var timeRangesObj;
-
-    if (ranges === undefined || ranges.length === 0) {
-      timeRangesObj = {
-        length: 0,
-        start: function start() {
-          throw new Error('This TimeRanges object is empty');
-        },
-        end: function end() {
-          throw new Error('This TimeRanges object is empty');
-        }
-      };
-    } else {
-      timeRangesObj = {
-        length: ranges.length,
-        start: getRange.bind(null, 'start', 0, ranges),
-        end: getRange.bind(null, 'end', 1, ranges)
-      };
-    }
-
-    if (window.Symbol && window.Symbol.iterator) {
-      timeRangesObj[window.Symbol.iterator] = function () {
-        return (ranges || []).values();
-      };
-    }
-
-    return timeRangesObj;
-  }
-  /**
-   * Create a `TimeRange` object which mimics an
-   * {@link https://developer.mozilla.org/en-US/docs/Web/API/TimeRanges|HTML5 TimeRanges instance}.
-   *
-   * @param {number|Array[]} start
-   *        The start of a single range (a number) or an array of ranges (an
-   *        array of arrays of two numbers each).
-   *
-   * @param {number} end
-   *        The end of a single range. Cannot be used with the array form of
-   *        the `start` argument.
-   */
-
-
-  function createTimeRanges(start, end) {
-    if (Array.isArray(start)) {
-      return createTimeRangesObj(start);
-    } else if (start === undefined || end === undefined) {
-      return createTimeRangesObj();
-    }
-
-    return createTimeRangesObj([[start, end]]);
-  }
-
-  /**
-   * @file buffer.js
-   * @module buffer
-   */
-  /**
-   * Compute the percentage of the media that has been buffered.
-   *
-   * @param {TimeRange} buffered
-   *        The current `TimeRange` object representing buffered time ranges
-   *
-   * @param {number} duration
-   *        Total duration of the media
-   *
-   * @return {number}
-   *         Percent buffered of the total duration in decimal form.
-   */
-
-  function bufferedPercent(buffered, duration) {
-    var bufferedDuration = 0;
-    var start;
-    var end;
-
-    if (!duration) {
-      return 0;
-    }
-
-    if (!buffered || !buffered.length) {
-      buffered = createTimeRanges(0, 0);
-    }
-
-    for (var i = 0; i < buffered.length; i++) {
-      start = buffered.start(i);
-      end = buffered.end(i); // buffered end can be bigger than duration by a very small fraction
-
-      if (end > duration) {
-        end = duration;
-      }
-
-      bufferedDuration += end - start;
-    }
-
-    return bufferedDuration / duration;
-  }
-
-  /**
-   * @file media-error.js
-   */
-  /**
-   * A Custom `MediaError` class which mimics the standard HTML5 `MediaError` class.
-   *
-   * @param {number|string|Object|MediaError} value
-   *        This can be of multiple types:
-   *        - number: should be a standard error code
-   *        - string: an error message (the code will be 0)
-   *        - Object: arbitrary properties
-   *        - `MediaError` (native): used to populate a video.js `MediaError` object
-   *        - `MediaError` (video.js): will return itself if it's already a
-   *          video.js `MediaError` object.
-   *
-   * @see [MediaError Spec]{@link https://dev.w3.org/html5/spec-author-view/video.html#mediaerror}
-   * @see [Encrypted MediaError Spec]{@link https://www.w3.org/TR/2013/WD-encrypted-media-20130510/#error-codes}
-   *
-   * @class MediaError
-   */
-
-  function MediaError(value) {
-    // Allow redundant calls to this constructor to avoid having `instanceof`
-    // checks peppered around the code.
-    if (value instanceof MediaError) {
-      return value;
-    }
-
-    if (typeof value === 'number') {
-      this.code = value;
-    } else if (typeof value === 'string') {
-      // default code is zero, so this is a custom error
-      this.message = value;
-    } else if (isObject$1(value)) {
-      // We assign the `code` property manually because native `MediaError` objects
-      // do not expose it as an own/enumerable property of the object.
-      if (typeof value.code === 'number') {
-        this.code = value.code;
-      }
-
-      assign(this, value);
-    }
-
-    if (!this.message) {
-      this.message = MediaError.defaultMessages[this.code] || '';
-    }
-  }
-  /**
-   * The error code that refers two one of the defined `MediaError` types
-   *
-   * @type {Number}
-   */
-
-
-  MediaError.prototype.code = 0;
-  /**
-   * An optional message that to show with the error. Message is not part of the HTML5
-   * video spec but allows for more informative custom errors.
-   *
-   * @type {String}
-   */
-
-  MediaError.prototype.message = '';
-  /**
-   * An optional status code that can be set by plugins to allow even more detail about
-   * the error. For example a plugin might provide a specific HTTP status code and an
-   * error message for that code. Then when the plugin gets that error this class will
-   * know how to display an error message for it. This allows a custom message to show
-   * up on the `Player` error overlay.
-   *
-   * @type {Array}
-   */
-
-  MediaError.prototype.status = null;
-  /**
-   * Errors indexed by the W3C standard. The order **CANNOT CHANGE**! See the
-   * specification listed under {@link MediaError} for more information.
-   *
-   * @enum {array}
-   * @readonly
-   * @property {string} 0 - MEDIA_ERR_CUSTOM
-   * @property {string} 1 - MEDIA_ERR_ABORTED
-   * @property {string} 2 - MEDIA_ERR_NETWORK
-   * @property {string} 3 - MEDIA_ERR_DECODE
-   * @property {string} 4 - MEDIA_ERR_SRC_NOT_SUPPORTED
-   * @property {string} 5 - MEDIA_ERR_ENCRYPTED
-   */
-
-  MediaError.errorTypes = ['MEDIA_ERR_CUSTOM', 'MEDIA_ERR_ABORTED', 'MEDIA_ERR_NETWORK', 'MEDIA_ERR_DECODE', 'MEDIA_ERR_SRC_NOT_SUPPORTED', 'MEDIA_ERR_ENCRYPTED'];
-  /**
-   * The default `MediaError` messages based on the {@link MediaError.errorTypes}.
-   *
-   * @type {Array}
-   * @constant
-   */
-
-  MediaError.defaultMessages = {
-    1: 'You aborted the media playback',
-    2: 'A network error caused the media download to fail part-way.',
-    3: 'The media playback was aborted due to a corruption problem or because the media used features your browser did not support.',
-    4: 'The media could not be loaded, either because the server or network failed or because the format is not supported.',
-    5: 'The media is encrypted and we do not have the keys to decrypt it.'
-  }; // Add types as properties on MediaError
-  // e.g. MediaError.MEDIA_ERR_SRC_NOT_SUPPORTED = 4;
-
-  for (var errNum = 0; errNum < MediaError.errorTypes.length; errNum++) {
-    MediaError[MediaError.errorTypes[errNum]] = errNum; // values should be accessible on both the class and instance
-
-    MediaError.prototype[MediaError.errorTypes[errNum]] = errNum;
-  } // jsdocs for instance/static members added above
-
-  var tuple = SafeParseTuple;
-
-  function SafeParseTuple(obj, reviver) {
-    var json;
-    var error = null;
-
-    try {
-      json = JSON.parse(obj, reviver);
-    } catch (err) {
-      error = err;
-    }
-
-    return [error, json];
-  }
-
-  /**
-   * Returns whether an object is `Promise`-like (i.e. has a `then` method).
-   *
-   * @param  {Object}  value
-   *         An object that may or may not be `Promise`-like.
-   *
-   * @return {boolean}
-   *         Whether or not the object is `Promise`-like.
-   */
-  function isPromise(value) {
-    return value !== undefined && value !== null && typeof value.then === 'function';
-  }
-  /**
-   * Silence a Promise-like object.
-   *
-   * This is useful for avoiding non-harmful, but potentially confusing "uncaught
-   * play promise" rejection error messages.
-   *
-   * @param  {Object} value
-   *         An object that may or may not be `Promise`-like.
-   */
-
-  function silencePromise(value) {
-    if (isPromise(value)) {
-      value.then(null, function (e) {});
-    }
-  }
-
-  /**
-   * @file text-track-list-converter.js Utilities for capturing text track state and
-   * re-creating tracks based on a capture.
-   *
-   * @module text-track-list-converter
-   */
-
-  /**
-   * Examine a single {@link TextTrack} and return a JSON-compatible javascript object that
-   * represents the {@link TextTrack}'s state.
-   *
-   * @param {TextTrack} track
-   *        The text track to query.
-   *
-   * @return {Object}
-   *         A serializable javascript representation of the TextTrack.
-   * @private
-   */
-  var trackToJson_ = function trackToJson_(track) {
-    var ret = ['kind', 'label', 'language', 'id', 'inBandMetadataTrackDispatchType', 'mode', 'src'].reduce(function (acc, prop, i) {
-      if (track[prop]) {
-        acc[prop] = track[prop];
-      }
-
-      return acc;
-    }, {
-      cues: track.cues && Array.prototype.map.call(track.cues, function (cue) {
-        return {
-          startTime: cue.startTime,
-          endTime: cue.endTime,
-          text: cue.text,
-          id: cue.id
+    function blockTextSelection() {
+        document.body.focus();
+        document.onselectstart = function () {
+            return false;
         };
-      })
-    });
-    return ret;
-  };
-  /**
-   * Examine a {@link Tech} and return a JSON-compatible javascript array that represents the
-   * state of all {@link TextTrack}s currently configured. The return array is compatible with
-   * {@link text-track-list-converter:jsonToTextTracks}.
-   *
-   * @param {Tech} tech
-   *        The tech object to query
-   *
-   * @return {Array}
-   *         A serializable javascript representation of the {@link Tech}s
-   *         {@link TextTrackList}.
-   */
-
-
-  var textTracksToJson = function textTracksToJson(tech) {
-    var trackEls = tech.$$('track');
-    var trackObjs = Array.prototype.map.call(trackEls, function (t) {
-      return t.track;
-    });
-    var tracks = Array.prototype.map.call(trackEls, function (trackEl) {
-      var json = trackToJson_(trackEl.track);
-
-      if (trackEl.src) {
-        json.src = trackEl.src;
-      }
-
-      return json;
-    });
-    return tracks.concat(Array.prototype.filter.call(tech.textTracks(), function (track) {
-      return trackObjs.indexOf(track) === -1;
-    }).map(trackToJson_));
-  };
-  /**
-   * Create a set of remote {@link TextTrack}s on a {@link Tech} based on an array of javascript
-   * object {@link TextTrack} representations.
-   *
-   * @param {Array} json
-   *        An array of `TextTrack` representation objects, like those that would be
-   *        produced by `textTracksToJson`.
-   *
-   * @param {Tech} tech
-   *        The `Tech` to create the `TextTrack`s on.
-   */
-
-
-  var jsonToTextTracks = function jsonToTextTracks(json, tech) {
-    json.forEach(function (track) {
-      var addedTrack = tech.addRemoteTextTrack(track).track;
-
-      if (!track.src && track.cues) {
-        track.cues.forEach(function (cue) {
-          return addedTrack.addCue(cue);
-        });
-      }
-    });
-    return tech.textTracks();
-  };
-
-  var textTrackConverter = {
-    textTracksToJson: textTracksToJson,
-    jsonToTextTracks: jsonToTextTracks,
-    trackToJson_: trackToJson_
-  };
-
-  var MODAL_CLASS_NAME = 'vjs-modal-dialog';
-  /**
-   * The `ModalDialog` displays over the video and its controls, which blocks
-   * interaction with the player until it is closed.
-   *
-   * Modal dialogs include a "Close" button and will close when that button
-   * is activated - or when ESC is pressed anywhere.
-   *
-   * @extends Component
-   */
-
-  var ModalDialog = /*#__PURE__*/function (_Component) {
-    inheritsLoose(ModalDialog, _Component);
-
-    /**
-     * Create an instance of this class.
-     *
-     * @param {Player} player
-     *        The `Player` that this class should be attached to.
-     *
-     * @param {Object} [options]
-     *        The key/value store of player options.
-     *
-     * @param {Mixed} [options.content=undefined]
-     *        Provide customized content for this modal.
-     *
-     * @param {string} [options.description]
-     *        A text description for the modal, primarily for accessibility.
-     *
-     * @param {boolean} [options.fillAlways=false]
-     *        Normally, modals are automatically filled only the first time
-     *        they open. This tells the modal to refresh its content
-     *        every time it opens.
-     *
-     * @param {string} [options.label]
-     *        A text label for the modal, primarily for accessibility.
-     *
-     * @param {boolean} [options.pauseOnOpen=true]
-     *        If `true`, playback will will be paused if playing when
-     *        the modal opens, and resumed when it closes.
-     *
-     * @param {boolean} [options.temporary=true]
-     *        If `true`, the modal can only be opened once; it will be
-     *        disposed as soon as it's closed.
-     *
-     * @param {boolean} [options.uncloseable=false]
-     *        If `true`, the user will not be able to close the modal
-     *        through the UI in the normal ways. Programmatic closing is
-     *        still possible.
-     */
-    function ModalDialog(player, options) {
-      var _this;
-
-      _this = _Component.call(this, player, options) || this;
-
-      _this.handleKeyDown_ = function (e) {
-        return _this.handleKeyDown(e);
-      };
-
-      _this.close_ = function (e) {
-        return _this.close(e);
-      };
-
-      _this.opened_ = _this.hasBeenOpened_ = _this.hasBeenFilled_ = false;
-
-      _this.closeable(!_this.options_.uncloseable);
-
-      _this.content(_this.options_.content); // Make sure the contentEl is defined AFTER any children are initialized
-      // because we only want the contents of the modal in the contentEl
-      // (not the UI elements like the close button).
-
-
-      _this.contentEl_ = createEl('div', {
-        className: MODAL_CLASS_NAME + "-content"
-      }, {
-        role: 'document'
-      });
-      _this.descEl_ = createEl('p', {
-        className: MODAL_CLASS_NAME + "-description vjs-control-text",
-        id: _this.el().getAttribute('aria-describedby')
-      });
-      textContent(_this.descEl_, _this.description());
-
-      _this.el_.appendChild(_this.descEl_);
-
-      _this.el_.appendChild(_this.contentEl_);
-
-      return _this;
     }
+
     /**
-     * Create the `ModalDialog`'s DOM element
+     * Turn off text selection blocking.
+     */
+    function unblockTextSelection() {
+        document.onselectstart = function () {
+            return true;
+        };
+    }
+
+    /**
+     * Identical to the native `getBoundingClientRect` function, but ensures that
+     * the method is supported at all (it is in all browsers we claim to support)
+     * and that the element is in the DOM before continuing.
+     *
+     * This wrapper function also shims properties which are not provided by some
+     * older browsers (namely, IE8).
+     *
+     * Additionally, some browsers do not support adding properties to a
+     * `ClientRect`/`DOMRect` object; so, we shallow-copy it with the standard
+     * properties (except `x` and `y` which are not widely supported). This helps
+     * avoid implementations where keys are non-enumerable.
+     *
+     * @param  {Element} el
+     *         Element whose `ClientRect` we want to calculate.
+     *
+     * @return {Object|undefined}
+     *         Always returns a plain object - or `undefined` if it cannot.
+     */
+    function getBoundingClientRect(el) {
+        if (el && el.getBoundingClientRect && el.parentNode) {
+            const rect = el.getBoundingClientRect();
+            const result = {};
+            ['bottom', 'height', 'left', 'right', 'top', 'width'].forEach(k => {
+                if (rect[k] !== undefined) {
+                    result[k] = rect[k];
+                }
+            });
+            if (!result.height) {
+                result.height = parseFloat(computedStyle(el, 'height'));
+            }
+            if (!result.width) {
+                result.width = parseFloat(computedStyle(el, 'width'));
+            }
+            return result;
+        }
+    }
+
+    /**
+     * Represents the position of a DOM element on the page.
+     *
+     * @typedef  {Object} module:dom~Position
+     *
+     * @property {number} left
+     *           Pixels to the left.
+     *
+     * @property {number} top
+     *           Pixels from the top.
+     */
+
+    /**
+     * Get the position of an element in the DOM.
+     *
+     * Uses `getBoundingClientRect` technique from John Resig.
+     *
+     * @see http://ejohn.org/blog/getboundingclientrect-is-awesome/
+     *
+     * @param  {Element} el
+     *         Element from which to get offset.
+     *
+     * @return {module:dom~Position}
+     *         The position of the element that was passed in.
+     */
+    function findPosition(el) {
+        if (!el || el && !el.offsetParent) {
+            return {
+                left: 0,
+                top: 0,
+                width: 0,
+                height: 0
+            };
+        }
+        const width = el.offsetWidth;
+        const height = el.offsetHeight;
+        let left = 0;
+        let top = 0;
+        while (el.offsetParent && el !== document[FullscreenApi.fullscreenElement]) {
+            left += el.offsetLeft;
+            top += el.offsetTop;
+            el = el.offsetParent;
+        }
+        return {
+            left,
+            top,
+            width,
+            height
+        };
+    }
+
+    /**
+     * Represents x and y coordinates for a DOM element or mouse pointer.
+     *
+     * @typedef  {Object} module:dom~Coordinates
+     *
+     * @property {number} x
+     *           x coordinate in pixels
+     *
+     * @property {number} y
+     *           y coordinate in pixels
+     */
+
+    /**
+     * Get the pointer position within an element.
+     *
+     * The base on the coordinates are the bottom left of the element.
+     *
+     * @param  {Element} el
+     *         Element on which to get the pointer position on.
+     *
+     * @param  {Event} event
+     *         Event object.
+     *
+     * @return {module:dom~Coordinates}
+     *         A coordinates object corresponding to the mouse position.
+     *
+     */
+    function getPointerPosition(el, event) {
+        const translated = {
+            x: 0,
+            y: 0
+        };
+        if (IS_IOS) {
+            let item = el;
+            while (item && item.nodeName.toLowerCase() !== 'html') {
+                const transform = computedStyle(item, 'transform');
+                if (/^matrix/.test(transform)) {
+                    const values = transform.slice(7, -1).split(/,\s/).map(Number);
+                    translated.x += values[4];
+                    translated.y += values[5];
+                } else if (/^matrix3d/.test(transform)) {
+                    const values = transform.slice(9, -1).split(/,\s/).map(Number);
+                    translated.x += values[12];
+                    translated.y += values[13];
+                }
+                item = item.parentNode;
+            }
+        }
+        const position = {};
+        const boxTarget = findPosition(event.target);
+        const box = findPosition(el);
+        const boxW = box.width;
+        const boxH = box.height;
+        let offsetY = event.offsetY - (box.top - boxTarget.top);
+        let offsetX = event.offsetX - (box.left - boxTarget.left);
+        if (event.changedTouches) {
+            offsetX = event.changedTouches[0].pageX - box.left;
+            offsetY = event.changedTouches[0].pageY + box.top;
+            if (IS_IOS) {
+                offsetX -= translated.x;
+                offsetY -= translated.y;
+            }
+        }
+        position.y = 1 - Math.max(0, Math.min(1, offsetY / boxH));
+        position.x = Math.max(0, Math.min(1, offsetX / boxW));
+        return position;
+    }
+
+    /**
+     * Determines, via duck typing, whether or not a value is a text node.
+     *
+     * @param  {*} value
+     *         Check if this value is a text node.
+     *
+     * @return {boolean}
+     *         Will be `true` if the value is a text node, `false` otherwise.
+     */
+    function isTextNode$1(value) {
+        return isObject$1(value) && value.nodeType === 3;
+    }
+
+    /**
+     * Empties the contents of an element.
+     *
+     * @param  {Element} el
+     *         The element to empty children from
      *
      * @return {Element}
-     *         The DOM element that gets created.
+     *         The element with no children
      */
-
-
-    var _proto = ModalDialog.prototype;
-
-    _proto.createEl = function createEl() {
-      return _Component.prototype.createEl.call(this, 'div', {
-        className: this.buildCSSClass(),
-        tabIndex: -1
-      }, {
-        'aria-describedby': this.id() + "_description",
-        'aria-hidden': 'true',
-        'aria-label': this.label(),
-        'role': 'dialog'
-      });
-    };
-
-    _proto.dispose = function dispose() {
-      this.contentEl_ = null;
-      this.descEl_ = null;
-      this.previouslyActiveEl_ = null;
-
-      _Component.prototype.dispose.call(this);
+    function emptyEl(el) {
+        while (el.firstChild) {
+            el.removeChild(el.firstChild);
+        }
+        return el;
     }
+
     /**
-     * Builds the default DOM `className`.
+     * This is a mixed value that describes content to be injected into the DOM
+     * via some method. It can be of the following types:
      *
-     * @return {string}
-     *         The DOM `className` for this object.
+     * Type       | Description
+     * -----------|-------------
+     * `string`   | The value will be normalized into a text node.
+     * `Element`  | The value will be accepted as-is.
+     * `Text`     | A TextNode. The value will be accepted as-is.
+     * `Array`    | A one-dimensional array of strings, elements, text nodes, or functions. These functions should return a string, element, or text node (any other return value, like an array, will be ignored).
+     * `Function` | A function, which is expected to return a string, element, text node, or array - any of the other possible values described above. This means that a content descriptor could be a function that returns an array of functions, but those second-level functions must return strings, elements, or text nodes.
+     *
+     * @typedef {string|Element|Text|Array|Function} ContentDescriptor
      */
-    ;
 
-    _proto.buildCSSClass = function buildCSSClass() {
-      return MODAL_CLASS_NAME + " vjs-hidden " + _Component.prototype.buildCSSClass.call(this);
-    }
     /**
-     * Returns the label string for this modal. Primarily used for accessibility.
+     * Normalizes content for eventual insertion into the DOM.
      *
-     * @return {string}
-     *         the localized or raw label of this modal.
-     */
-    ;
-
-    _proto.label = function label() {
-      return this.localize(this.options_.label || 'Modal Window');
-    }
-    /**
-     * Returns the description string for this modal. Primarily used for
-     * accessibility.
+     * This allows a wide range of content definition methods, but helps protect
+     * from falling into the trap of simply writing to `innerHTML`, which could
+     * be an XSS concern.
      *
-     * @return {string}
-     *         The localized or raw description of this modal.
-     */
-    ;
-
-    _proto.description = function description() {
-      var desc = this.options_.description || this.localize('This is a modal window.'); // Append a universal closeability message if the modal is closeable.
-
-      if (this.closeable()) {
-        desc += ' ' + this.localize('This modal can be closed by pressing the Escape key or activating the close button.');
-      }
-
-      return desc;
-    }
-    /**
-     * Opens the modal.
+     * The content for an element can be passed in multiple types and
+     * combinations, whose behavior is as follows:
      *
-     * @fires ModalDialog#beforemodalopen
-     * @fires ModalDialog#modalopen
+     * @param {ContentDescriptor} content
+     *        A content descriptor value.
+     *
+     * @return {Array}
+     *         All of the content that was passed in, normalized to an array of
+     *         elements or text nodes.
      */
-    ;
-
-    _proto.open = function open() {
-      if (!this.opened_) {
-        var player = this.player();
-        /**
-          * Fired just before a `ModalDialog` is opened.
-          *
-          * @event ModalDialog#beforemodalopen
-          * @type {EventTarget~Event}
-          */
-
-        this.trigger('beforemodalopen');
-        this.opened_ = true; // Fill content if the modal has never opened before and
-        // never been filled.
-
-        if (this.options_.fillAlways || !this.hasBeenOpened_ && !this.hasBeenFilled_) {
-          this.fill();
-        } // If the player was playing, pause it and take note of its previously
-        // playing state.
-
-
-        this.wasPlaying_ = !player.paused();
-
-        if (this.options_.pauseOnOpen && this.wasPlaying_) {
-          player.pause();
+    function normalizeContent(content) {
+        // First, invoke content if it is a function. If it produces an array,
+        // that needs to happen before normalization.
+        if (typeof content === 'function') {
+            content = content();
         }
 
-        this.on('keydown', this.handleKeyDown_); // Hide controls and note if they were enabled.
-
-        this.hadControls_ = player.controls();
-        player.controls(false);
-        this.show();
-        this.conditionalFocus_();
-        this.el().setAttribute('aria-hidden', 'false');
-        /**
-          * Fired just after a `ModalDialog` is opened.
-          *
-          * @event ModalDialog#modalopen
-          * @type {EventTarget~Event}
-          */
-
-        this.trigger('modalopen');
-        this.hasBeenOpened_ = true;
-      }
+        // Next up, normalize to an array, so one or many items can be normalized,
+        // filtered, and returned.
+        return (Array.isArray(content) ? content : [content]).map(value => {
+            // First, invoke value if it is a function to produce a new value,
+            // which will be subsequently normalized to a Node of some kind.
+            if (typeof value === 'function') {
+                value = value();
+            }
+            if (isEl(value) || isTextNode$1(value)) {
+                return value;
+            }
+            if (typeof value === 'string' && /\S/.test(value)) {
+                return document.createTextNode(value);
+            }
+        }).filter(value => value);
     }
+
     /**
-     * If the `ModalDialog` is currently open or closed.
+     * Normalizes and appends content to an element.
      *
-     * @param  {boolean} [value]
-     *         If given, it will open (`true`) or close (`false`) the modal.
+     * @param  {Element} el
+     *         Element to append normalized content to.
+     *
+     * @param {ContentDescriptor} content
+     *        A content descriptor value.
+     *
+     * @return {Element}
+     *         The element with appended normalized content.
+     */
+    function appendContent(el, content) {
+        normalizeContent(content).forEach(node => el.appendChild(node));
+        return el;
+    }
+
+    /**
+     * Normalizes and inserts content into an element; this is identical to
+     * `appendContent()`, except it empties the element first.
+     *
+     * @param {Element} el
+     *        Element to insert normalized content into.
+     *
+     * @param {ContentDescriptor} content
+     *        A content descriptor value.
+     *
+     * @return {Element}
+     *         The element with inserted normalized content.
+     */
+    function insertContent(el, content) {
+        return appendContent(emptyEl(el), content);
+    }
+
+    /**
+     * Check if an event was a single left click.
+     *
+     * @param  {Event} event
+     *         Event object.
      *
      * @return {boolean}
-     *         the current open state of the modaldialog
+     *         Will be `true` if a single left click, `false` otherwise.
      */
-    ;
+    function isSingleLeftClick(event) {
+        // Note: if you create something draggable, be sure to
+        // call it on both `mousedown` and `mousemove` event,
+        // otherwise `mousedown` should be enough for a button
 
-    _proto.opened = function opened(value) {
-      if (typeof value === 'boolean') {
-        this[value ? 'open' : 'close']();
-      }
+        if (event.button === undefined && event.buttons === undefined) {
+            // Why do we need `buttons` ?
+            // Because, middle mouse sometimes have this:
+            // e.button === 0 and e.buttons === 4
+            // Furthermore, we want to prevent combination click, something like
+            // HOLD middlemouse then left click, that would be
+            // e.button === 0, e.buttons === 5
+            // just `button` is not gonna work
 
-      return this.opened_;
-    }
-    /**
-     * Closes the modal, does nothing if the `ModalDialog` is
-     * not open.
-     *
-     * @fires ModalDialog#beforemodalclose
-     * @fires ModalDialog#modalclose
-     */
-    ;
+            // Alright, then what this block does ?
+            // this is for chrome `simulate mobile devices`
+            // I want to support this as well
 
-    _proto.close = function close() {
-      if (!this.opened_) {
-        return;
-      }
-
-      var player = this.player();
-      /**
-        * Fired just before a `ModalDialog` is closed.
-        *
-        * @event ModalDialog#beforemodalclose
-        * @type {EventTarget~Event}
-        */
-
-      this.trigger('beforemodalclose');
-      this.opened_ = false;
-
-      if (this.wasPlaying_ && this.options_.pauseOnOpen) {
-        player.play();
-      }
-
-      this.off('keydown', this.handleKeyDown_);
-
-      if (this.hadControls_) {
-        player.controls(true);
-      }
-
-      this.hide();
-      this.el().setAttribute('aria-hidden', 'true');
-      /**
-        * Fired just after a `ModalDialog` is closed.
-        *
-        * @event ModalDialog#modalclose
-        * @type {EventTarget~Event}
-        */
-
-      this.trigger('modalclose');
-      this.conditionalBlur_();
-
-      if (this.options_.temporary) {
-        this.dispose();
-      }
-    }
-    /**
-     * Check to see if the `ModalDialog` is closeable via the UI.
-     *
-     * @param  {boolean} [value]
-     *         If given as a boolean, it will set the `closeable` option.
-     *
-     * @return {boolean}
-     *         Returns the final value of the closable option.
-     */
-    ;
-
-    _proto.closeable = function closeable(value) {
-      if (typeof value === 'boolean') {
-        var closeable = this.closeable_ = !!value;
-        var close = this.getChild('closeButton'); // If this is being made closeable and has no close button, add one.
-
-        if (closeable && !close) {
-          // The close button should be a child of the modal - not its
-          // content element, so temporarily change the content element.
-          var temp = this.contentEl_;
-          this.contentEl_ = this.el_;
-          close = this.addChild('closeButton', {
-            controlText: 'Close Modal Dialog'
-          });
-          this.contentEl_ = temp;
-          this.on(close, 'close', this.close_);
-        } // If this is being made uncloseable and has a close button, remove it.
-
-
-        if (!closeable && close) {
-          this.off(close, 'close', this.close_);
-          this.removeChild(close);
-          close.dispose();
+            return true;
         }
-      }
+        if (event.button === 0 && event.buttons === undefined) {
+            // Touch screen, sometimes on some specific device, `buttons`
+            // doesn't have anything (safari on ios, blackberry...)
 
-      return this.closeable_;
-    }
-    /**
-     * Fill the modal's content element with the modal's "content" option.
-     * The content element will be emptied before this change takes place.
-     */
-    ;
-
-    _proto.fill = function fill() {
-      this.fillWith(this.content());
-    }
-    /**
-     * Fill the modal's content element with arbitrary content.
-     * The content element will be emptied before this change takes place.
-     *
-     * @fires ModalDialog#beforemodalfill
-     * @fires ModalDialog#modalfill
-     *
-     * @param {Mixed} [content]
-     *        The same rules apply to this as apply to the `content` option.
-     */
-    ;
-
-    _proto.fillWith = function fillWith(content) {
-      var contentEl = this.contentEl();
-      var parentEl = contentEl.parentNode;
-      var nextSiblingEl = contentEl.nextSibling;
-      /**
-        * Fired just before a `ModalDialog` is filled with content.
-        *
-        * @event ModalDialog#beforemodalfill
-        * @type {EventTarget~Event}
-        */
-
-      this.trigger('beforemodalfill');
-      this.hasBeenFilled_ = true; // Detach the content element from the DOM before performing
-      // manipulation to avoid modifying the live DOM multiple times.
-
-      parentEl.removeChild(contentEl);
-      this.empty();
-      insertContent(contentEl, content);
-      /**
-       * Fired just after a `ModalDialog` is filled with content.
-       *
-       * @event ModalDialog#modalfill
-       * @type {EventTarget~Event}
-       */
-
-      this.trigger('modalfill'); // Re-inject the re-filled content element.
-
-      if (nextSiblingEl) {
-        parentEl.insertBefore(contentEl, nextSiblingEl);
-      } else {
-        parentEl.appendChild(contentEl);
-      } // make sure that the close button is last in the dialog DOM
-
-
-      var closeButton = this.getChild('closeButton');
-
-      if (closeButton) {
-        parentEl.appendChild(closeButton.el_);
-      }
-    }
-    /**
-     * Empties the content element. This happens anytime the modal is filled.
-     *
-     * @fires ModalDialog#beforemodalempty
-     * @fires ModalDialog#modalempty
-     */
-    ;
-
-    _proto.empty = function empty() {
-      /**
-      * Fired just before a `ModalDialog` is emptied.
-      *
-      * @event ModalDialog#beforemodalempty
-      * @type {EventTarget~Event}
-      */
-      this.trigger('beforemodalempty');
-      emptyEl(this.contentEl());
-      /**
-      * Fired just after a `ModalDialog` is emptied.
-      *
-      * @event ModalDialog#modalempty
-      * @type {EventTarget~Event}
-      */
-
-      this.trigger('modalempty');
-    }
-    /**
-     * Gets or sets the modal content, which gets normalized before being
-     * rendered into the DOM.
-     *
-     * This does not update the DOM or fill the modal, but it is called during
-     * that process.
-     *
-     * @param  {Mixed} [value]
-     *         If defined, sets the internal content value to be used on the
-     *         next call(s) to `fill`. This value is normalized before being
-     *         inserted. To "clear" the internal content value, pass `null`.
-     *
-     * @return {Mixed}
-     *         The current content of the modal dialog
-     */
-    ;
-
-    _proto.content = function content(value) {
-      if (typeof value !== 'undefined') {
-        this.content_ = value;
-      }
-
-      return this.content_;
-    }
-    /**
-     * conditionally focus the modal dialog if focus was previously on the player.
-     *
-     * @private
-     */
-    ;
-
-    _proto.conditionalFocus_ = function conditionalFocus_() {
-      var activeEl = document.activeElement;
-      var playerEl = this.player_.el_;
-      this.previouslyActiveEl_ = null;
-
-      if (playerEl.contains(activeEl) || playerEl === activeEl) {
-        this.previouslyActiveEl_ = activeEl;
-        this.focus();
-      }
-    }
-    /**
-     * conditionally blur the element and refocus the last focused element
-     *
-     * @private
-     */
-    ;
-
-    _proto.conditionalBlur_ = function conditionalBlur_() {
-      if (this.previouslyActiveEl_) {
-        this.previouslyActiveEl_.focus();
-        this.previouslyActiveEl_ = null;
-      }
-    }
-    /**
-     * Keydown handler. Attached when modal is focused.
-     *
-     * @listens keydown
-     */
-    ;
-
-    _proto.handleKeyDown = function handleKeyDown(event) {
-      // Do not allow keydowns to reach out of the modal dialog.
-      event.stopPropagation();
-
-      if (keycode.isEventKey(event, 'Escape') && this.closeable()) {
-        event.preventDefault();
-        this.close();
-        return;
-      } // exit early if it isn't a tab key
-
-
-      if (!keycode.isEventKey(event, 'Tab')) {
-        return;
-      }
-
-      var focusableEls = this.focusableEls_();
-      var activeEl = this.el_.querySelector(':focus');
-      var focusIndex;
-
-      for (var i = 0; i < focusableEls.length; i++) {
-        if (activeEl === focusableEls[i]) {
-          focusIndex = i;
-          break;
-        }
-      }
-
-      if (document.activeElement === this.el_) {
-        focusIndex = 0;
-      }
-
-      if (event.shiftKey && focusIndex === 0) {
-        focusableEls[focusableEls.length - 1].focus();
-        event.preventDefault();
-      } else if (!event.shiftKey && focusIndex === focusableEls.length - 1) {
-        focusableEls[0].focus();
-        event.preventDefault();
-      }
-    }
-    /**
-     * get all focusable elements
-     *
-     * @private
-     */
-    ;
-
-    _proto.focusableEls_ = function focusableEls_() {
-      var allChildren = this.el_.querySelectorAll('*');
-      return Array.prototype.filter.call(allChildren, function (child) {
-        return (child instanceof window.HTMLAnchorElement || child instanceof window.HTMLAreaElement) && child.hasAttribute('href') || (child instanceof window.HTMLInputElement || child instanceof window.HTMLSelectElement || child instanceof window.HTMLTextAreaElement || child instanceof window.HTMLButtonElement) && !child.hasAttribute('disabled') || child instanceof window.HTMLIFrameElement || child instanceof window.HTMLObjectElement || child instanceof window.HTMLEmbedElement || child.hasAttribute('tabindex') && child.getAttribute('tabindex') !== -1 || child.hasAttribute('contenteditable');
-      });
-    };
-
-    return ModalDialog;
-  }(Component$1);
-  /**
-   * Default options for `ModalDialog` default options.
-   *
-   * @type {Object}
-   * @private
-   */
-
-
-  ModalDialog.prototype.options_ = {
-    pauseOnOpen: true,
-    temporary: true
-  };
-  Component$1.registerComponent('ModalDialog', ModalDialog);
-
-  /**
-   * Common functionaliy between {@link TextTrackList}, {@link AudioTrackList}, and
-   * {@link VideoTrackList}
-   *
-   * @extends EventTarget
-   */
-
-  var TrackList = /*#__PURE__*/function (_EventTarget) {
-    inheritsLoose(TrackList, _EventTarget);
-
-    /**
-     * Create an instance of this class
-     *
-     * @param {Track[]} tracks
-     *        A list of tracks to initialize the list with.
-     *
-     * @abstract
-     */
-    function TrackList(tracks) {
-      var _this;
-
-      if (tracks === void 0) {
-        tracks = [];
-      }
-
-      _this = _EventTarget.call(this) || this;
-      _this.tracks_ = [];
-      /**
-       * @memberof TrackList
-       * @member {number} length
-       *         The current number of `Track`s in the this Trackist.
-       * @instance
-       */
-
-      Object.defineProperty(assertThisInitialized(_this), 'length', {
-        get: function get() {
-          return this.tracks_.length;
-        }
-      });
-
-      for (var i = 0; i < tracks.length; i++) {
-        _this.addTrack(tracks[i]);
-      }
-
-      return _this;
-    }
-    /**
-     * Add a {@link Track} to the `TrackList`
-     *
-     * @param {Track} track
-     *        The audio, video, or text track to add to the list.
-     *
-     * @fires TrackList#addtrack
-     */
-
-
-    var _proto = TrackList.prototype;
-
-    _proto.addTrack = function addTrack(track) {
-      var _this2 = this;
-
-      var index = this.tracks_.length;
-
-      if (!('' + index in this)) {
-        Object.defineProperty(this, index, {
-          get: function get() {
-            return this.tracks_[index];
-          }
-        });
-      } // Do not add duplicate tracks
-
-
-      if (this.tracks_.indexOf(track) === -1) {
-        this.tracks_.push(track);
-        /**
-         * Triggered when a track is added to a track list.
-         *
-         * @event TrackList#addtrack
-         * @type {EventTarget~Event}
-         * @property {Track} track
-         *           A reference to track that was added.
-         */
-
-        this.trigger({
-          track: track,
-          type: 'addtrack',
-          target: this
-        });
-      }
-      /**
-       * Triggered when a track label is changed.
-       *
-       * @event TrackList#addtrack
-       * @type {EventTarget~Event}
-       * @property {Track} track
-       *           A reference to track that was added.
-       */
-
-
-      track.labelchange_ = function () {
-        _this2.trigger({
-          track: track,
-          type: 'labelchange',
-          target: _this2
-        });
-      };
-
-      if (isEvented(track)) {
-        track.addEventListener('labelchange', track.labelchange_);
-      }
-    }
-    /**
-     * Remove a {@link Track} from the `TrackList`
-     *
-     * @param {Track} rtrack
-     *        The audio, video, or text track to remove from the list.
-     *
-     * @fires TrackList#removetrack
-     */
-    ;
-
-    _proto.removeTrack = function removeTrack(rtrack) {
-      var track;
-
-      for (var i = 0, l = this.length; i < l; i++) {
-        if (this[i] === rtrack) {
-          track = this[i];
-
-          if (track.off) {
-            track.off();
-          }
-
-          this.tracks_.splice(i, 1);
-          break;
-        }
-      }
-
-      if (!track) {
-        return;
-      }
-      /**
-       * Triggered when a track is removed from track list.
-       *
-       * @event TrackList#removetrack
-       * @type {EventTarget~Event}
-       * @property {Track} track
-       *           A reference to track that was removed.
-       */
-
-
-      this.trigger({
-        track: track,
-        type: 'removetrack',
-        target: this
-      });
-    }
-    /**
-     * Get a Track from the TrackList by a tracks id
-     *
-     * @param {string} id - the id of the track to get
-     * @method getTrackById
-     * @return {Track}
-     * @private
-     */
-    ;
-
-    _proto.getTrackById = function getTrackById(id) {
-      var result = null;
-
-      for (var i = 0, l = this.length; i < l; i++) {
-        var track = this[i];
-
-        if (track.id === id) {
-          result = track;
-          break;
-        }
-      }
-
-      return result;
-    };
-
-    return TrackList;
-  }(EventTarget$2);
-  /**
-   * Triggered when a different track is selected/enabled.
-   *
-   * @event TrackList#change
-   * @type {EventTarget~Event}
-   */
-
-  /**
-   * Events that can be called with on + eventName. See {@link EventHandler}.
-   *
-   * @property {Object} TrackList#allowedEvents_
-   * @private
-   */
-
-
-  TrackList.prototype.allowedEvents_ = {
-    change: 'change',
-    addtrack: 'addtrack',
-    removetrack: 'removetrack',
-    labelchange: 'labelchange'
-  }; // emulate attribute EventHandler support to allow for feature detection
-
-  for (var event in TrackList.prototype.allowedEvents_) {
-    TrackList.prototype['on' + event] = null;
-  }
-
-  /**
-   * Anywhere we call this function we diverge from the spec
-   * as we only support one enabled audiotrack at a time
-   *
-   * @param {AudioTrackList} list
-   *        list to work on
-   *
-   * @param {AudioTrack} track
-   *        The track to skip
-   *
-   * @private
-   */
-
-  var disableOthers$1 = function disableOthers(list, track) {
-    for (var i = 0; i < list.length; i++) {
-      if (!Object.keys(list[i]).length || track.id === list[i].id) {
-        continue;
-      } // another audio track is enabled, disable it
-
-
-      list[i].enabled = false;
-    }
-  };
-  /**
-   * The current list of {@link AudioTrack} for a media file.
-   *
-   * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#audiotracklist}
-   * @extends TrackList
-   */
-
-
-  var AudioTrackList = /*#__PURE__*/function (_TrackList) {
-    inheritsLoose(AudioTrackList, _TrackList);
-
-    /**
-     * Create an instance of this class.
-     *
-     * @param {AudioTrack[]} [tracks=[]]
-     *        A list of `AudioTrack` to instantiate the list with.
-     */
-    function AudioTrackList(tracks) {
-      var _this;
-
-      if (tracks === void 0) {
-        tracks = [];
-      }
-
-      // make sure only 1 track is enabled
-      // sorted from last index to first index
-      for (var i = tracks.length - 1; i >= 0; i--) {
-        if (tracks[i].enabled) {
-          disableOthers$1(tracks, tracks[i]);
-          break;
-        }
-      }
-
-      _this = _TrackList.call(this, tracks) || this;
-      _this.changing_ = false;
-      return _this;
-    }
-    /**
-     * Add an {@link AudioTrack} to the `AudioTrackList`.
-     *
-     * @param {AudioTrack} track
-     *        The AudioTrack to add to the list
-     *
-     * @fires TrackList#addtrack
-     */
-
-
-    var _proto = AudioTrackList.prototype;
-
-    _proto.addTrack = function addTrack(track) {
-      var _this2 = this;
-
-      if (track.enabled) {
-        disableOthers$1(this, track);
-      }
-
-      _TrackList.prototype.addTrack.call(this, track); // native tracks don't have this
-
-
-      if (!track.addEventListener) {
-        return;
-      }
-
-      track.enabledChange_ = function () {
-        // when we are disabling other tracks (since we don't support
-        // more than one track at a time) we will set changing_
-        // to true so that we don't trigger additional change events
-        if (_this2.changing_) {
-          return;
+            return true;
         }
 
-        _this2.changing_ = true;
-        disableOthers$1(_this2, track);
-        _this2.changing_ = false;
+        // `mouseup` event on a single left click has
+        // `button` and `buttons` equal to 0
+        if (event.type === 'mouseup' && event.button === 0 && event.buttons === 0) {
+            return true;
+        }
+        if (event.button !== 0 || event.buttons !== 1) {
+            // This is the reason we have those if else block above
+            // if any special case we can catch and let it slide
+            // we do it above, when get to here, this definitely
+            // is-not-left-click
 
-        _this2.trigger('change');
-      };
-      /**
-       * @listens AudioTrack#enabledchange
-       * @fires TrackList#change
-       */
-
-
-      track.addEventListener('enabledchange', track.enabledChange_);
-    };
-
-    _proto.removeTrack = function removeTrack(rtrack) {
-      _TrackList.prototype.removeTrack.call(this, rtrack);
-
-      if (rtrack.removeEventListener && rtrack.enabledChange_) {
-        rtrack.removeEventListener('enabledchange', rtrack.enabledChange_);
-        rtrack.enabledChange_ = null;
-      }
-    };
-
-    return AudioTrackList;
-  }(TrackList);
-
-  /**
-   * Un-select all other {@link VideoTrack}s that are selected.
-   *
-   * @param {VideoTrackList} list
-   *        list to work on
-   *
-   * @param {VideoTrack} track
-   *        The track to skip
-   *
-   * @private
-   */
-
-  var disableOthers = function disableOthers(list, track) {
-    for (var i = 0; i < list.length; i++) {
-      if (!Object.keys(list[i]).length || track.id === list[i].id) {
-        continue;
-      } // another video track is enabled, disable it
-
-
-      list[i].selected = false;
+            return false;
+        }
+        return true;
     }
-  };
-  /**
-   * The current list of {@link VideoTrack} for a video.
-   *
-   * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#videotracklist}
-   * @extends TrackList
-   */
-
-
-  var VideoTrackList = /*#__PURE__*/function (_TrackList) {
-    inheritsLoose(VideoTrackList, _TrackList);
 
     /**
-     * Create an instance of this class.
+     * Finds a single DOM element matching `selector` within the optional
+     * `context` of another DOM element (defaulting to `document`).
      *
-     * @param {VideoTrack[]} [tracks=[]]
-     *        A list of `VideoTrack` to instantiate the list with.
+     * @param  {string} selector
+     *         A valid CSS selector, which will be passed to `querySelector`.
+     *
+     * @param  {Element|String} [context=document]
+     *         A DOM element within which to query. Can also be a selector
+     *         string in which case the first matching element will be used
+     *         as context. If missing (or no element matches selector), falls
+     *         back to `document`.
+     *
+     * @return {Element|null}
+     *         The element that was found or null.
      */
-    function VideoTrackList(tracks) {
-      var _this;
-
-      if (tracks === void 0) {
-        tracks = [];
-      }
-
-      // make sure only 1 track is enabled
-      // sorted from last index to first index
-      for (var i = tracks.length - 1; i >= 0; i--) {
-        if (tracks[i].selected) {
-          disableOthers(tracks, tracks[i]);
-          break;
-        }
-      }
-
-      _this = _TrackList.call(this, tracks) || this;
-      _this.changing_ = false;
-      /**
-       * @member {number} VideoTrackList#selectedIndex
-       *         The current index of the selected {@link VideoTrack`}.
-       */
-
-      Object.defineProperty(assertThisInitialized(_this), 'selectedIndex', {
-        get: function get() {
-          for (var _i = 0; _i < this.length; _i++) {
-            if (this[_i].selected) {
-              return _i;
-            }
-          }
-
-          return -1;
-        },
-        set: function set() {}
-      });
-      return _this;
-    }
-    /**
-     * Add a {@link VideoTrack} to the `VideoTrackList`.
-     *
-     * @param {VideoTrack} track
-     *        The VideoTrack to add to the list
-     *
-     * @fires TrackList#addtrack
-     */
-
-
-    var _proto = VideoTrackList.prototype;
-
-    _proto.addTrack = function addTrack(track) {
-      var _this2 = this;
-
-      if (track.selected) {
-        disableOthers(this, track);
-      }
-
-      _TrackList.prototype.addTrack.call(this, track); // native tracks don't have this
-
-
-      if (!track.addEventListener) {
-        return;
-      }
-
-      track.selectedChange_ = function () {
-        if (_this2.changing_) {
-          return;
-        }
-
-        _this2.changing_ = true;
-        disableOthers(_this2, track);
-        _this2.changing_ = false;
-
-        _this2.trigger('change');
-      };
-      /**
-       * @listens VideoTrack#selectedchange
-       * @fires TrackList#change
-       */
-
-
-      track.addEventListener('selectedchange', track.selectedChange_);
-    };
-
-    _proto.removeTrack = function removeTrack(rtrack) {
-      _TrackList.prototype.removeTrack.call(this, rtrack);
-
-      if (rtrack.removeEventListener && rtrack.selectedChange_) {
-        rtrack.removeEventListener('selectedchange', rtrack.selectedChange_);
-        rtrack.selectedChange_ = null;
-      }
-    };
-
-    return VideoTrackList;
-  }(TrackList);
-
-  /**
-   * The current list of {@link TextTrack} for a media file.
-   *
-   * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#texttracklist}
-   * @extends TrackList
-   */
-
-  var TextTrackList = /*#__PURE__*/function (_TrackList) {
-    inheritsLoose(TextTrackList, _TrackList);
-
-    function TextTrackList() {
-      return _TrackList.apply(this, arguments) || this;
-    }
-
-    var _proto = TextTrackList.prototype;
+    const $ = createQuerier('querySelector');
 
     /**
-     * Add a {@link TextTrack} to the `TextTrackList`
+     * Finds a all DOM elements matching `selector` within the optional
+     * `context` of another DOM element (defaulting to `document`).
      *
-     * @param {TextTrack} track
-     *        The text track to add to the list.
+     * @param  {string} selector
+     *         A valid CSS selector, which will be passed to `querySelectorAll`.
+     *
+     * @param  {Element|String} [context=document]
+     *         A DOM element within which to query. Can also be a selector
+     *         string in which case the first matching element will be used
+     *         as context. If missing (or no element matches selector), falls
+     *         back to `document`.
+     *
+     * @return {NodeList}
+     *         A element list of elements that were found. Will be empty if none
+     *         were found.
      *
-     * @fires TrackList#addtrack
      */
-    _proto.addTrack = function addTrack(track) {
-      var _this = this;
-
-      _TrackList.prototype.addTrack.call(this, track);
-
-      if (!this.queueChange_) {
-        this.queueChange_ = function () {
-          return _this.queueTrigger('change');
-        };
-      }
-
-      if (!this.triggerSelectedlanguagechange) {
-        this.triggerSelectedlanguagechange_ = function () {
-          return _this.trigger('selectedlanguagechange');
-        };
-      }
-      /**
-       * @listens TextTrack#modechange
-       * @fires TrackList#change
-       */
-
-
-      track.addEventListener('modechange', this.queueChange_);
-      var nonLanguageTextTrackKind = ['metadata', 'chapters'];
-
-      if (nonLanguageTextTrackKind.indexOf(track.kind) === -1) {
-        track.addEventListener('modechange', this.triggerSelectedlanguagechange_);
-      }
-    };
-
-    _proto.removeTrack = function removeTrack(rtrack) {
-      _TrackList.prototype.removeTrack.call(this, rtrack); // manually remove the event handlers we added
-
-
-      if (rtrack.removeEventListener) {
-        if (this.queueChange_) {
-          rtrack.removeEventListener('modechange', this.queueChange_);
-        }
-
-        if (this.selectedlanguagechange_) {
-          rtrack.removeEventListener('modechange', this.triggerSelectedlanguagechange_);
-        }
-      }
-    };
-
-    return TextTrackList;
-  }(TrackList);
-
-  /**
-   * @file html-track-element-list.js
-   */
-
-  /**
-   * The current list of {@link HtmlTrackElement}s.
-   */
-  var HtmlTrackElementList = /*#__PURE__*/function () {
-    /**
-     * Create an instance of this class.
-     *
-     * @param {HtmlTrackElement[]} [tracks=[]]
-     *        A list of `HtmlTrackElement` to instantiate the list with.
-     */
-    function HtmlTrackElementList(trackElements) {
-      if (trackElements === void 0) {
-        trackElements = [];
-      }
-
-      this.trackElements_ = [];
-      /**
-       * @memberof HtmlTrackElementList
-       * @member {number} length
-       *         The current number of `Track`s in the this Trackist.
-       * @instance
-       */
-
-      Object.defineProperty(this, 'length', {
-        get: function get() {
-          return this.trackElements_.length;
-        }
-      });
-
-      for (var i = 0, length = trackElements.length; i < length; i++) {
-        this.addTrackElement_(trackElements[i]);
-      }
-    }
-    /**
-     * Add an {@link HtmlTrackElement} to the `HtmlTrackElementList`
-     *
-     * @param {HtmlTrackElement} trackElement
-     *        The track element to add to the list.
-     *
-     * @private
-     */
-
-
-    var _proto = HtmlTrackElementList.prototype;
-
-    _proto.addTrackElement_ = function addTrackElement_(trackElement) {
-      var index = this.trackElements_.length;
-
-      if (!('' + index in this)) {
-        Object.defineProperty(this, index, {
-          get: function get() {
-            return this.trackElements_[index];
-          }
-        });
-      } // Do not add duplicate elements
-
-
-      if (this.trackElements_.indexOf(trackElement) === -1) {
-        this.trackElements_.push(trackElement);
-      }
-    }
-    /**
-     * Get an {@link HtmlTrackElement} from the `HtmlTrackElementList` given an
-     * {@link TextTrack}.
-     *
-     * @param {TextTrack} track
-     *        The track associated with a track element.
-     *
-     * @return {HtmlTrackElement|undefined}
-     *         The track element that was found or undefined.
-     *
-     * @private
-     */
-    ;
-
-    _proto.getTrackElementByTrack_ = function getTrackElementByTrack_(track) {
-      var trackElement_;
-
-      for (var i = 0, length = this.trackElements_.length; i < length; i++) {
-        if (track === this.trackElements_[i].track) {
-          trackElement_ = this.trackElements_[i];
-          break;
-        }
-      }
-
-      return trackElement_;
-    }
-    /**
-     * Remove a {@link HtmlTrackElement} from the `HtmlTrackElementList`
-     *
-     * @param {HtmlTrackElement} trackElement
-     *        The track element to remove from the list.
-     *
-     * @private
-     */
-    ;
-
-    _proto.removeTrackElement_ = function removeTrackElement_(trackElement) {
-      for (var i = 0, length = this.trackElements_.length; i < length; i++) {
-        if (trackElement === this.trackElements_[i]) {
-          if (this.trackElements_[i].track && typeof this.trackElements_[i].track.off === 'function') {
-            this.trackElements_[i].track.off();
-          }
-
-          if (typeof this.trackElements_[i].off === 'function') {
-            this.trackElements_[i].off();
-          }
-
-          this.trackElements_.splice(i, 1);
-          break;
-        }
-      }
-    };
-
-    return HtmlTrackElementList;
-  }();
-
-  /**
-   * @file text-track-cue-list.js
-   */
-
-  /**
-   * @typedef {Object} TextTrackCueList~TextTrackCue
-   *
-   * @property {string} id
-   *           The unique id for this text track cue
-   *
-   * @property {number} startTime
-   *           The start time for this text track cue
-   *
-   * @property {number} endTime
-   *           The end time for this text track cue
-   *
-   * @property {boolean} pauseOnExit
-   *           Pause when the end time is reached if true.
-   *
-   * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#texttrackcue}
-   */
-
-  /**
-   * A List of TextTrackCues.
-   *
-   * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#texttrackcuelist}
-   */
-  var TextTrackCueList = /*#__PURE__*/function () {
-    /**
-     * Create an instance of this class..
-     *
-     * @param {Array} cues
-     *        A list of cues to be initialized with
-     */
-    function TextTrackCueList(cues) {
-      TextTrackCueList.prototype.setCues_.call(this, cues);
-      /**
-       * @memberof TextTrackCueList
-       * @member {number} length
-       *         The current number of `TextTrackCue`s in the TextTrackCueList.
-       * @instance
-       */
-
-      Object.defineProperty(this, 'length', {
-        get: function get() {
-          return this.length_;
-        }
-      });
-    }
-    /**
-     * A setter for cues in this list. Creates getters
-     * an an index for the cues.
-     *
-     * @param {Array} cues
-     *        An array of cues to set
-     *
-     * @private
-     */
-
-
-    var _proto = TextTrackCueList.prototype;
-
-    _proto.setCues_ = function setCues_(cues) {
-      var oldLength = this.length || 0;
-      var i = 0;
-      var l = cues.length;
-      this.cues_ = cues;
-      this.length_ = cues.length;
-
-      var defineProp = function defineProp(index) {
-        if (!('' + index in this)) {
-          Object.defineProperty(this, '' + index, {
-            get: function get() {
-              return this.cues_[index];
-            }
-          });
-        }
-      };
-
-      if (oldLength < l) {
-        i = oldLength;
-
-        for (; i < l; i++) {
-          defineProp.call(this, i);
-        }
-      }
-    }
-    /**
-     * Get a `TextTrackCue` that is currently in the `TextTrackCueList` by id.
-     *
-     * @param {string} id
-     *        The id of the cue that should be searched for.
-     *
-     * @return {TextTrackCueList~TextTrackCue|null}
-     *         A single cue or null if none was found.
-     */
-    ;
-
-    _proto.getCueById = function getCueById(id) {
-      var result = null;
-
-      for (var i = 0, l = this.length; i < l; i++) {
-        var cue = this[i];
-
-        if (cue.id === id) {
-          result = cue;
-          break;
-        }
-      }
-
-      return result;
-    };
-
-    return TextTrackCueList;
-  }();
-
-  /**
-   * @file track-kinds.js
-   */
-
-  /**
-   * All possible `VideoTrackKind`s
-   *
-   * @see https://html.spec.whatwg.org/multipage/embedded-content.html#dom-videotrack-kind
-   * @typedef VideoTrack~Kind
-   * @enum
-   */
-  var VideoTrackKind = {
-    alternative: 'alternative',
-    captions: 'captions',
-    main: 'main',
-    sign: 'sign',
-    subtitles: 'subtitles',
-    commentary: 'commentary'
-  };
-  /**
-   * All possible `AudioTrackKind`s
-   *
-   * @see https://html.spec.whatwg.org/multipage/embedded-content.html#dom-audiotrack-kind
-   * @typedef AudioTrack~Kind
-   * @enum
-   */
-
-  var AudioTrackKind = {
-    'alternative': 'alternative',
-    'descriptions': 'descriptions',
-    'main': 'main',
-    'main-desc': 'main-desc',
-    'translation': 'translation',
-    'commentary': 'commentary'
-  };
-  /**
-   * All possible `TextTrackKind`s
-   *
-   * @see https://html.spec.whatwg.org/multipage/embedded-content.html#dom-texttrack-kind
-   * @typedef TextTrack~Kind
-   * @enum
-   */
-
-  var TextTrackKind = {
-    subtitles: 'subtitles',
-    captions: 'captions',
-    descriptions: 'descriptions',
-    chapters: 'chapters',
-    metadata: 'metadata'
-  };
-  /**
-   * All possible `TextTrackMode`s
-   *
-   * @see https://html.spec.whatwg.org/multipage/embedded-content.html#texttrackmode
-   * @typedef TextTrack~Mode
-   * @enum
-   */
-
-  var TextTrackMode = {
-    disabled: 'disabled',
-    hidden: 'hidden',
-    showing: 'showing'
-  };
-
-  /**
-   * A Track class that contains all of the common functionality for {@link AudioTrack},
-   * {@link VideoTrack}, and {@link TextTrack}.
-   *
-   * > Note: This class should not be used directly
-   *
-   * @see {@link https://html.spec.whatwg.org/multipage/embedded-content.html}
-   * @extends EventTarget
-   * @abstract
-   */
-
-  var Track = /*#__PURE__*/function (_EventTarget) {
-    inheritsLoose(Track, _EventTarget);
+    const $$ = createQuerier('querySelectorAll');
 
     /**
-     * Create an instance of this class.
+     * A safe getComputedStyle.
      *
-     * @param {Object} [options={}]
-     *        Object of option names and values
+     * This is needed because in Firefox, if the player is loaded in an iframe with
+     * `display:none`, then `getComputedStyle` returns `null`, so, we do a
+     * null-check to make sure that the player doesn't break in these cases.
      *
-     * @param {string} [options.kind='']
-     *        A valid kind for the track type you are creating.
+     * @param    {Element} el
+     *           The element you want the computed style of
      *
-     * @param {string} [options.id='vjs_track_' + Guid.newGUID()]
-     *        A unique id for this AudioTrack.
+     * @param    {string} prop
+     *           The property name you want
      *
-     * @param {string} [options.label='']
-     *        The menu label for this track.
-     *
-     * @param {string} [options.language='']
-     *        A valid two character language code.
-     *
-     * @abstract
+     * @see      https://bugzilla.mozilla.org/show_bug.cgi?id=548397
      */
-    function Track(options) {
-      var _this;
-
-      if (options === void 0) {
-        options = {};
-      }
-
-      _this = _EventTarget.call(this) || this;
-      var trackProps = {
-        id: options.id || 'vjs_track_' + newGUID(),
-        kind: options.kind || '',
-        language: options.language || ''
-      };
-      var label = options.label || '';
-      /**
-       * @memberof Track
-       * @member {string} id
-       *         The id of this track. Cannot be changed after creation.
-       * @instance
-       *
-       * @readonly
-       */
-
-      /**
-       * @memberof Track
-       * @member {string} kind
-       *         The kind of track that this is. Cannot be changed after creation.
-       * @instance
-       *
-       * @readonly
-       */
-
-      /**
-       * @memberof Track
-       * @member {string} language
-       *         The two letter language code for this track. Cannot be changed after
-       *         creation.
-       * @instance
-       *
-       * @readonly
-       */
-
-      var _loop = function _loop(key) {
-        Object.defineProperty(assertThisInitialized(_this), key, {
-          get: function get() {
-            return trackProps[key];
-          },
-          set: function set() {}
-        });
-      };
-
-      for (var key in trackProps) {
-        _loop(key);
-      }
-      /**
-       * @memberof Track
-       * @member {string} label
-       *         The label of this track. Cannot be changed after creation.
-       * @instance
-       *
-       * @fires Track#labelchange
-       */
-
-
-      Object.defineProperty(assertThisInitialized(_this), 'label', {
-        get: function get() {
-          return label;
-        },
-        set: function set(newLabel) {
-          if (newLabel !== label) {
-            label = newLabel;
-            /**
-             * An event that fires when label changes on this track.
-             *
-             * > Note: This is not part of the spec!
-             *
-             * @event Track#labelchange
-             * @type {EventTarget~Event}
-             */
-
-            this.trigger('labelchange');
-          }
+    function computedStyle(el, prop) {
+        if (!el || !prop) {
+            return '';
         }
-      });
-      return _this;
-    }
-
-    return Track;
-  }(EventTarget$2);
-
-  /**
-   * @file url.js
-   * @module url
-   */
-
-  /**
-   * @typedef {Object} url:URLObject
-   *
-   * @property {string} protocol
-   *           The protocol of the url that was parsed.
-   *
-   * @property {string} hostname
-   *           The hostname of the url that was parsed.
-   *
-   * @property {string} port
-   *           The port of the url that was parsed.
-   *
-   * @property {string} pathname
-   *           The pathname of the url that was parsed.
-   *
-   * @property {string} search
-   *           The search query of the url that was parsed.
-   *
-   * @property {string} hash
-   *           The hash of the url that was parsed.
-   *
-   * @property {string} host
-   *           The host of the url that was parsed.
-   */
-
-  /**
-   * Resolve and parse the elements of a URL.
-   *
-   * @function
-   * @param    {String} url
-   *           The url to parse
-   *
-   * @return   {url:URLObject}
-   *           An object of url details
-   */
-  var parseUrl = function parseUrl(url) {
-    // This entire method can be replace with URL once we are able to drop IE11
-    var props = ['protocol', 'hostname', 'port', 'pathname', 'search', 'hash', 'host']; // add the url to an anchor and let the browser parse the URL
-
-    var a = document.createElement('a');
-    a.href = url; // Copy the specific URL properties to a new object
-    // This is also needed for IE because the anchor loses its
-    // properties when it's removed from the dom
-
-    var details = {};
-
-    for (var i = 0; i < props.length; i++) {
-      details[props[i]] = a[props[i]];
-    } // IE adds the port to the host property unlike everyone else. If
-    // a port identifier is added for standard ports, strip it.
-
-
-    if (details.protocol === 'http:') {
-      details.host = details.host.replace(/:80$/, '');
-    }
-
-    if (details.protocol === 'https:') {
-      details.host = details.host.replace(/:443$/, '');
-    }
-
-    if (!details.protocol) {
-      details.protocol = window.location.protocol;
-    }
-    /* istanbul ignore if */
-
-
-    if (!details.host) {
-      details.host = window.location.host;
-    }
-
-    return details;
-  };
-  /**
-   * Get absolute version of relative URL. Used to tell Flash the correct URL.
-   *
-   * @function
-   * @param    {string} url
-   *           URL to make absolute
-   *
-   * @return   {string}
-   *           Absolute URL
-   *
-   * @see      http://stackoverflow.com/questions/470832/getting-an-absolute-url-from-a-relative-one-ie6-issue
-   */
-
-  var getAbsoluteURL = function getAbsoluteURL(url) {
-    // Check if absolute URL
-    if (!url.match(/^https?:\/\//)) {
-      // Convert to absolute URL. Flash hosted off-site needs an absolute URL.
-      // add the url to an anchor and let the browser parse the URL
-      var a = document.createElement('a');
-      a.href = url;
-      url = a.href;
-    }
-
-    return url;
-  };
-  /**
-   * Returns the extension of the passed file name. It will return an empty string
-   * if passed an invalid path.
-   *
-   * @function
-   * @param    {string} path
-   *           The fileName path like '/path/to/file.mp4'
-   *
-   * @return  {string}
-   *           The extension in lower case or an empty string if no
-   *           extension could be found.
-   */
-
-  var getFileExtension = function getFileExtension(path) {
-    if (typeof path === 'string') {
-      var splitPathRe = /^(\/?)([\s\S]*?)((?:\.{1,2}|[^\/]+?)(\.([^\.\/\?]+)))(?:[\/]*|[\?].*)$/;
-      var pathParts = splitPathRe.exec(path);
-
-      if (pathParts) {
-        return pathParts.pop().toLowerCase();
-      }
-    }
-
-    return '';
-  };
-  /**
-   * Returns whether the url passed is a cross domain request or not.
-   *
-   * @function
-   * @param    {string} url
-   *           The url to check.
-   *
-   * @param    {Object} [winLoc]
-   *           the domain to check the url against, defaults to window.location
-   *
-   * @param    {string} [winLoc.protocol]
-   *           The window location protocol defaults to window.location.protocol
-   *
-   * @param    {string} [winLoc.host]
-   *           The window location host defaults to window.location.host
-   *
-   * @return   {boolean}
-   *           Whether it is a cross domain request or not.
-   */
-
-  var isCrossOrigin = function isCrossOrigin(url, winLoc) {
-    if (winLoc === void 0) {
-      winLoc = window.location;
-    }
-
-    var urlInfo = parseUrl(url); // IE8 protocol relative urls will return ':' for protocol
-
-    var srcProtocol = urlInfo.protocol === ':' ? winLoc.protocol : urlInfo.protocol; // Check if url is for another domain/origin
-    // IE8 doesn't know location.origin, so we won't rely on it here
-
-    var crossOrigin = srcProtocol + urlInfo.host !== winLoc.protocol + winLoc.host;
-    return crossOrigin;
-  };
-
-  var Url = /*#__PURE__*/Object.freeze({
-    __proto__: null,
-    parseUrl: parseUrl,
-    getAbsoluteURL: getAbsoluteURL,
-    getFileExtension: getFileExtension,
-    isCrossOrigin: isCrossOrigin
-  });
-
-  var win;
-
-  if (typeof window !== "undefined") {
-    win = window;
-  } else if (typeof commonjsGlobal !== "undefined") {
-    win = commonjsGlobal;
-  } else if (typeof self !== "undefined") {
-    win = self;
-  } else {
-    win = {};
-  }
-
-  var window_1 = win;
-
-  var isFunction_1 = isFunction;
-  var toString = Object.prototype.toString;
-
-  function isFunction(fn) {
-    if (!fn) {
-      return false;
-    }
-
-    var string = toString.call(fn);
-    return string === '[object Function]' || typeof fn === 'function' && string !== '[object RegExp]' || typeof window !== 'undefined' && ( // IE8 and below
-    fn === window.setTimeout || fn === window.alert || fn === window.confirm || fn === window.prompt);
-  }
-
-  var httpResponseHandler = function httpResponseHandler(callback, decodeResponseBody) {
-    if (decodeResponseBody === void 0) {
-      decodeResponseBody = false;
-    }
-
-    return function (err, response, responseBody) {
-      // if the XHR failed, return that error
-      if (err) {
-        callback(err);
-        return;
-      } // if the HTTP status code is 4xx or 5xx, the request also failed
-
-
-      if (response.statusCode >= 400 && response.statusCode <= 599) {
-        var cause = responseBody;
-
-        if (decodeResponseBody) {
-          if (window_1.TextDecoder) {
-            var charset = getCharset(response.headers && response.headers['content-type']);
-
+        if (typeof window.getComputedStyle === 'function') {
+            let computedStyleValue;
             try {
-              cause = new TextDecoder(charset).decode(responseBody);
-            } catch (e) {}
-          } else {
-            cause = String.fromCharCode.apply(null, new Uint8Array(responseBody));
-          }
-        }
-
-        callback({
-          cause: cause
-        });
-        return;
-      } // otherwise, request succeeded
-
-
-      callback(null, responseBody);
-    };
-  };
-
-  function getCharset(contentTypeHeader) {
-    if (contentTypeHeader === void 0) {
-      contentTypeHeader = '';
-    }
-
-    return contentTypeHeader.toLowerCase().split(';').reduce(function (charset, contentType) {
-      var _contentType$split = contentType.split('='),
-          type = _contentType$split[0],
-          value = _contentType$split[1];
-
-      if (type.trim() === 'charset') {
-        return value.trim();
-      }
-
-      return charset;
-    }, 'utf-8');
-  }
-
-  var httpHandler = httpResponseHandler;
-
-  createXHR.httpHandler = httpHandler;
-  /**
-   * @license
-   * slighly modified parse-headers 2.0.2 <https://github.com/kesla/parse-headers/>
-   * Copyright (c) 2014 David Björklund
-   * Available under the MIT license
-   * <https://github.com/kesla/parse-headers/blob/master/LICENCE>
-   */
-
-  var parseHeaders = function parseHeaders(headers) {
-    var result = {};
-
-    if (!headers) {
-      return result;
-    }
-
-    headers.trim().split('\n').forEach(function (row) {
-      var index = row.indexOf(':');
-      var key = row.slice(0, index).trim().toLowerCase();
-      var value = row.slice(index + 1).trim();
-
-      if (typeof result[key] === 'undefined') {
-        result[key] = value;
-      } else if (Array.isArray(result[key])) {
-        result[key].push(value);
-      } else {
-        result[key] = [result[key], value];
-      }
-    });
-    return result;
-  };
-
-  var lib = createXHR; // Allow use of default import syntax in TypeScript
-
-  var default_1 = createXHR;
-  createXHR.XMLHttpRequest = window_1.XMLHttpRequest || noop$1;
-  createXHR.XDomainRequest = "withCredentials" in new createXHR.XMLHttpRequest() ? createXHR.XMLHttpRequest : window_1.XDomainRequest;
-  forEachArray(["get", "put", "post", "patch", "head", "delete"], function (method) {
-    createXHR[method === "delete" ? "del" : method] = function (uri, options, callback) {
-      options = initParams(uri, options, callback);
-      options.method = method.toUpperCase();
-      return _createXHR(options);
-    };
-  });
-
-  function forEachArray(array, iterator) {
-    for (var i = 0; i < array.length; i++) {
-      iterator(array[i]);
-    }
-  }
-
-  function isEmpty(obj) {
-    for (var i in obj) {
-      if (obj.hasOwnProperty(i)) return false;
-    }
-
-    return true;
-  }
-
-  function initParams(uri, options, callback) {
-    var params = uri;
-
-    if (isFunction_1(options)) {
-      callback = options;
-
-      if (typeof uri === "string") {
-        params = {
-          uri: uri
-        };
-      }
-    } else {
-      params = _extends_1({}, options, {
-        uri: uri
-      });
-    }
-
-    params.callback = callback;
-    return params;
-  }
-
-  function createXHR(uri, options, callback) {
-    options = initParams(uri, options, callback);
-    return _createXHR(options);
-  }
-
-  function _createXHR(options) {
-    if (typeof options.callback === "undefined") {
-      throw new Error("callback argument missing");
-    }
-
-    var called = false;
-
-    var callback = function cbOnce(err, response, body) {
-      if (!called) {
-        called = true;
-        options.callback(err, response, body);
-      }
-    };
-
-    function readystatechange() {
-      if (xhr.readyState === 4) {
-        setTimeout(loadFunc, 0);
-      }
-    }
-
-    function getBody() {
-      // Chrome with requestType=blob throws errors arround when even testing access to responseText
-      var body = undefined;
-
-      if (xhr.response) {
-        body = xhr.response;
-      } else {
-        body = xhr.responseText || getXml(xhr);
-      }
-
-      if (isJson) {
-        try {
-          body = JSON.parse(body);
-        } catch (e) {}
-      }
-
-      return body;
-    }
-
-    function errorFunc(evt) {
-      clearTimeout(timeoutTimer);
-
-      if (!(evt instanceof Error)) {
-        evt = new Error("" + (evt || "Unknown XMLHttpRequest Error"));
-      }
-
-      evt.statusCode = 0;
-      return callback(evt, failureResponse);
-    } // will load the data & process the response in a special response object
-
-
-    function loadFunc() {
-      if (aborted) return;
-      var status;
-      clearTimeout(timeoutTimer);
-
-      if (options.useXDR && xhr.status === undefined) {
-        //IE8 CORS GET successful response doesn't have a status field, but body is fine
-        status = 200;
-      } else {
-        status = xhr.status === 1223 ? 204 : xhr.status;
-      }
-
-      var response = failureResponse;
-      var err = null;
-
-      if (status !== 0) {
-        response = {
-          body: getBody(),
-          statusCode: status,
-          method: method,
-          headers: {},
-          url: uri,
-          rawRequest: xhr
-        };
-
-        if (xhr.getAllResponseHeaders) {
-          //remember xhr can in fact be XDR for CORS in IE
-          response.headers = parseHeaders(xhr.getAllResponseHeaders());
-        }
-      } else {
-        err = new Error("Internal XMLHttpRequest Error");
-      }
-
-      return callback(err, response, response.body);
-    }
-
-    var xhr = options.xhr || null;
-
-    if (!xhr) {
-      if (options.cors || options.useXDR) {
-        xhr = new createXHR.XDomainRequest();
-      } else {
-        xhr = new createXHR.XMLHttpRequest();
-      }
-    }
-
-    var key;
-    var aborted;
-    var uri = xhr.url = options.uri || options.url;
-    var method = xhr.method = options.method || "GET";
-    var body = options.body || options.data;
-    var headers = xhr.headers = options.headers || {};
-    var sync = !!options.sync;
-    var isJson = false;
-    var timeoutTimer;
-    var failureResponse = {
-      body: undefined,
-      headers: {},
-      statusCode: 0,
-      method: method,
-      url: uri,
-      rawRequest: xhr
-    };
-
-    if ("json" in options && options.json !== false) {
-      isJson = true;
-      headers["accept"] || headers["Accept"] || (headers["Accept"] = "application/json"); //Don't override existing accept header declared by user
-
-      if (method !== "GET" && method !== "HEAD") {
-        headers["content-type"] || headers["Content-Type"] || (headers["Content-Type"] = "application/json"); //Don't override existing accept header declared by user
-
-        body = JSON.stringify(options.json === true ? body : options.json);
-      }
-    }
-
-    xhr.onreadystatechange = readystatechange;
-    xhr.onload = loadFunc;
-    xhr.onerror = errorFunc; // IE9 must have onprogress be set to a unique function.
-
-    xhr.onprogress = function () {// IE must die
-    };
-
-    xhr.onabort = function () {
-      aborted = true;
-    };
-
-    xhr.ontimeout = errorFunc;
-    xhr.open(method, uri, !sync, options.username, options.password); //has to be after open
-
-    if (!sync) {
-      xhr.withCredentials = !!options.withCredentials;
-    } // Cannot set timeout with sync request
-    // not setting timeout on the xhr object, because of old webkits etc. not handling that correctly
-    // both npm's request and jquery 1.x use this kind of timeout, so this is being consistent
-
-
-    if (!sync && options.timeout > 0) {
-      timeoutTimer = setTimeout(function () {
-        if (aborted) return;
-        aborted = true; //IE9 may still call readystatechange
-
-        xhr.abort("timeout");
-        var e = new Error("XMLHttpRequest timeout");
-        e.code = "ETIMEDOUT";
-        errorFunc(e);
-      }, options.timeout);
-    }
-
-    if (xhr.setRequestHeader) {
-      for (key in headers) {
-        if (headers.hasOwnProperty(key)) {
-          xhr.setRequestHeader(key, headers[key]);
-        }
-      }
-    } else if (options.headers && !isEmpty(options.headers)) {
-      throw new Error("Headers cannot be set on an XDomainRequest object");
-    }
-
-    if ("responseType" in options) {
-      xhr.responseType = options.responseType;
-    }
-
-    if ("beforeSend" in options && typeof options.beforeSend === "function") {
-      options.beforeSend(xhr);
-    } // Microsoft Edge browser sends "undefined" when send is called with undefined value.
-    // XMLHttpRequest spec says to pass null as body to indicate no body
-    // See https://github.com/naugtur/xhr/issues/100.
-
-
-    xhr.send(body || null);
-    return xhr;
-  }
-
-  function getXml(xhr) {
-    // xhr.responseXML will throw Exception "InvalidStateError" or "DOMException"
-    // See https://developer.mozilla.org/en-US/docs/Web/API/XMLHttpRequest/responseXML.
-    try {
-      if (xhr.responseType === "document") {
-        return xhr.responseXML;
-      }
-
-      var firefoxBugTakenEffect = xhr.responseXML && xhr.responseXML.documentElement.nodeName === "parsererror";
-
-      if (xhr.responseType === "" && !firefoxBugTakenEffect) {
-        return xhr.responseXML;
-      }
-    } catch (e) {}
-
-    return null;
-  }
-
-  function noop$1() {}
-  lib["default"] = default_1;
-
-  /**
-   * Takes a webvtt file contents and parses it into cues
-   *
-   * @param {string} srcContent
-   *        webVTT file contents
-   *
-   * @param {TextTrack} track
-   *        TextTrack to add cues to. Cues come from the srcContent.
-   *
-   * @private
-   */
-
-  var parseCues = function parseCues(srcContent, track) {
-    var parser = new window.WebVTT.Parser(window, window.vttjs, window.WebVTT.StringDecoder());
-    var errors = [];
-
-    parser.oncue = function (cue) {
-      track.addCue(cue);
-    };
-
-    parser.onparsingerror = function (error) {
-      errors.push(error);
-    };
-
-    parser.onflush = function () {
-      track.trigger({
-        type: 'loadeddata',
-        target: track
-      });
-    };
-
-    parser.parse(srcContent);
-
-    if (errors.length > 0) {
-      if (window.console && window.console.groupCollapsed) {
-        window.console.groupCollapsed("Text Track parsing errors for " + track.src);
-      }
-
-      errors.forEach(function (error) {
-        return log$1.error(error);
-      });
-
-      if (window.console && window.console.groupEnd) {
-        window.console.groupEnd();
-      }
-    }
-
-    parser.flush();
-  };
-  /**
-   * Load a `TextTrack` from a specified url.
-   *
-   * @param {string} src
-   *        Url to load track from.
-   *
-   * @param {TextTrack} track
-   *        Track to add cues to. Comes from the content at the end of `url`.
-   *
-   * @private
-   */
-
-
-  var loadTrack = function loadTrack(src, track) {
-    var opts = {
-      uri: src
-    };
-    var crossOrigin = isCrossOrigin(src);
-
-    if (crossOrigin) {
-      opts.cors = crossOrigin;
-    }
-
-    var withCredentials = track.tech_.crossOrigin() === 'use-credentials';
-
-    if (withCredentials) {
-      opts.withCredentials = withCredentials;
-    }
-
-    lib(opts, bind(this, function (err, response, responseBody) {
-      if (err) {
-        return log$1.error(err, response);
-      }
-
-      track.loaded_ = true; // Make sure that vttjs has loaded, otherwise, wait till it finished loading
-      // NOTE: this is only used for the alt/video.novtt.js build
-
-      if (typeof window.WebVTT !== 'function') {
-        if (track.tech_) {
-          // to prevent use before define eslint error, we define loadHandler
-          // as a let here
-          track.tech_.any(['vttjsloaded', 'vttjserror'], function (event) {
-            if (event.type === 'vttjserror') {
-              log$1.error("vttjs failed to load, stopping trying to process " + track.src);
-              return;
+                computedStyleValue = window.getComputedStyle(el);
+            } catch (e) {
+                return '';
             }
-
-            return parseCues(responseBody, track);
-          });
+            return computedStyleValue ? computedStyleValue.getPropertyValue(prop) || computedStyleValue[prop] : '';
         }
-      } else {
-        parseCues(responseBody, track);
-      }
-    }));
-  };
-  /**
-   * A representation of a single `TextTrack`.
-   *
-   * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#texttrack}
-   * @extends Track
-   */
+        return '';
+    }
 
-
-  var TextTrack = /*#__PURE__*/function (_Track) {
-    inheritsLoose(TextTrack, _Track);
+    var Dom = /*#__PURE__*/Object.freeze({
+        __proto__: null,
+        isReal: isReal,
+        isEl: isEl,
+        isInFrame: isInFrame,
+        createEl: createEl,
+        textContent: textContent,
+        prependTo: prependTo,
+        hasClass: hasClass,
+        addClass: addClass,
+        removeClass: removeClass,
+        toggleClass: toggleClass,
+        setAttributes: setAttributes,
+        getAttributes: getAttributes,
+        getAttribute: getAttribute,
+        setAttribute: setAttribute,
+        removeAttribute: removeAttribute,
+        blockTextSelection: blockTextSelection,
+        unblockTextSelection: unblockTextSelection,
+        getBoundingClientRect: getBoundingClientRect,
+        findPosition: findPosition,
+        getPointerPosition: getPointerPosition,
+        isTextNode: isTextNode$1,
+        emptyEl: emptyEl,
+        normalizeContent: normalizeContent,
+        appendContent: appendContent,
+        insertContent: insertContent,
+        isSingleLeftClick: isSingleLeftClick,
+        $: $,
+        $$: $$,
+        computedStyle: computedStyle
+    });
 
     /**
-     * Create an instance of this class.
+     * @file setup.js - Functions for setting up a player without
+     * user interaction based on the data-setup `attribute` of the video tag.
      *
-     * @param {Object} options={}
-     *        Object of option names and values
-     *
-     * @param {Tech} options.tech
-     *        A reference to the tech that owns this TextTrack.
-     *
-     * @param {TextTrack~Kind} [options.kind='subtitles']
-     *        A valid text track kind.
-     *
-     * @param {TextTrack~Mode} [options.mode='disabled']
-     *        A valid text track mode.
-     *
-     * @param {string} [options.id='vjs_track_' + Guid.newGUID()]
-     *        A unique id for this TextTrack.
-     *
-     * @param {string} [options.label='']
-     *        The menu label for this track.
-     *
-     * @param {string} [options.language='']
-     *        A valid two character language code.
-     *
-     * @param {string} [options.srclang='']
-     *        A valid two character language code. An alternative, but deprioritized
-     *        version of `options.language`
-     *
-     * @param {string} [options.src]
-     *        A url to TextTrack cues.
-     *
-     * @param {boolean} [options.default]
-     *        If this track should default to on or off.
+     * @module setup
      */
-    function TextTrack(options) {
-      var _this;
+    let _windowLoaded = false;
+    let videojs$1;
 
-      if (options === void 0) {
-        options = {};
-      }
-
-      if (!options.tech) {
-        throw new Error('A tech was not provided.');
-      }
-
-      var settings = mergeOptions$3(options, {
-        kind: TextTrackKind[options.kind] || 'subtitles',
-        language: options.language || options.srclang || ''
-      });
-      var mode = TextTrackMode[settings.mode] || 'disabled';
-      var default_ = settings["default"];
-
-      if (settings.kind === 'metadata' || settings.kind === 'chapters') {
-        mode = 'hidden';
-      }
-
-      _this = _Track.call(this, settings) || this;
-      _this.tech_ = settings.tech;
-      _this.cues_ = [];
-      _this.activeCues_ = [];
-      _this.preload_ = _this.tech_.preloadTextTracks !== false;
-      var cues = new TextTrackCueList(_this.cues_);
-      var activeCues = new TextTrackCueList(_this.activeCues_);
-      var changed = false;
-      _this.timeupdateHandler = bind(assertThisInitialized(_this), function (event) {
-        if (event === void 0) {
-          event = {};
+    /**
+     * Set up any tags that have a data-setup `attribute` when the player is started.
+     */
+    const autoSetup = function () {
+        if (videojs$1.options.autoSetup === false) {
+            return;
         }
+        const vids = Array.prototype.slice.call(document.getElementsByTagName('video'));
+        const audios = Array.prototype.slice.call(document.getElementsByTagName('audio'));
+        const divs = Array.prototype.slice.call(document.getElementsByTagName('video-js'));
+        const mediaEls = vids.concat(audios, divs);
 
-        if (this.tech_.isDisposed()) {
-          return;
-        }
+        // Check if any media elements exist
+        if (mediaEls && mediaEls.length > 0) {
+            for (let i = 0, e = mediaEls.length; i < e; i++) {
+                const mediaEl = mediaEls[i];
 
-        if (!this.tech_.isReady_) {
-          if (event.type !== 'timeupdate') {
-            this.rvf_ = this.tech_.requestVideoFrameCallback(this.timeupdateHandler);
-          }
+                // Check if element exists, has getAttribute func.
+                if (mediaEl && mediaEl.getAttribute) {
+                    // Make sure this player hasn't already been set up.
+                    if (mediaEl.player === undefined) {
+                        const options = mediaEl.getAttribute('data-setup');
 
-          return;
-        } // Accessing this.activeCues for the side-effects of updating itself
-        // due to its nature as a getter function. Do not remove or cues will
-        // stop updating!
-        // Use the setter to prevent deletion from uglify (pure_getters rule)
+                        // Check if data-setup attr exists.
+                        // We only auto-setup if they've added the data-setup attr.
+                        if (options !== null) {
+                            // Create new video.js instance.
+                            videojs$1(mediaEl);
+                        }
+                    }
 
-
-        this.activeCues = this.activeCues;
-
-        if (changed) {
-          this.trigger('cuechange');
-          changed = false;
-        }
-
-        if (event.type !== 'timeupdate') {
-          this.rvf_ = this.tech_.requestVideoFrameCallback(this.timeupdateHandler);
-        }
-      });
-
-      var disposeHandler = function disposeHandler() {
-        _this.stopTracking();
-      };
-
-      _this.tech_.one('dispose', disposeHandler);
-
-      if (mode !== 'disabled') {
-        _this.startTracking();
-      }
-
-      Object.defineProperties(assertThisInitialized(_this), {
-        /**
-         * @memberof TextTrack
-         * @member {boolean} default
-         *         If this track was set to be on or off by default. Cannot be changed after
-         *         creation.
-         * @instance
-         *
-         * @readonly
-         */
-        "default": {
-          get: function get() {
-            return default_;
-          },
-          set: function set() {}
-        },
-
-        /**
-         * @memberof TextTrack
-         * @member {string} mode
-         *         Set the mode of this TextTrack to a valid {@link TextTrack~Mode}. Will
-         *         not be set if setting to an invalid mode.
-         * @instance
-         *
-         * @fires TextTrack#modechange
-         */
-        mode: {
-          get: function get() {
-            return mode;
-          },
-          set: function set(newMode) {
-            if (!TextTrackMode[newMode]) {
-              return;
+                    // If getAttribute isn't defined, we need to wait for the DOM.
+                } else {
+                    autoSetupTimeout(1);
+                    break;
+                }
             }
 
-            if (mode === newMode) {
-              return;
-            }
+            // No videos were found, so keep looping unless page is finished loading.
+        } else if (!_windowLoaded) {
+            autoSetupTimeout(1);
+        }
+    };
 
-            mode = newMode;
+    /**
+     * Wait until the page is loaded before running autoSetup. This will be called in
+     * autoSetup if `hasLoaded` returns false.
+     *
+     * @param {number} wait
+     *        How long to wait in ms
+     *
+     * @param {module:videojs} [vjs]
+     *        The videojs library function
+     */
+    function autoSetupTimeout(wait, vjs) {
+        // Protect against breakage in non-browser environments
+        if (!isReal()) {
+            return;
+        }
+        if (vjs) {
+            videojs$1 = vjs;
+        }
+        window.setTimeout(autoSetup, wait);
+    }
 
-            if (!this.preload_ && mode !== 'disabled' && this.cues.length === 0) {
-              // On-demand load.
-              loadTrack(this.src, this);
-            }
-
-            this.stopTracking();
-
-            if (mode !== 'disabled') {
-              this.startTracking();
-            }
+    /**
+     * Used to set the internal tracking of window loaded state to true.
+     *
+     * @private
+     */
+    function setWindowLoaded() {
+        _windowLoaded = true;
+        window.removeEventListener('load', setWindowLoaded);
+    }
+    if (isReal()) {
+        if (document.readyState === 'complete') {
+            setWindowLoaded();
+        } else {
             /**
-             * An event that fires when mode changes on this track. This allows
-             * the TextTrackList that holds this track to act accordingly.
+             * Listen for the load event on window, and set _windowLoaded to true.
              *
-             * > Note: This is not part of the spec!
+             * We use a standard event listener here to avoid incrementing the GUID
+             * before any players are created.
              *
-             * @event TextTrack#modechange
-             * @type {EventTarget~Event}
+             * @listens load
+             */
+            window.addEventListener('load', setWindowLoaded);
+        }
+    }
+
+    /**
+     * @file stylesheet.js
+     * @module stylesheet
+     */
+
+    /**
+     * Create a DOM style element given a className for it.
+     *
+     * @param {string} className
+     *        The className to add to the created style element.
+     *
+     * @return {Element}
+     *         The element that was created.
+     */
+    const createStyleElement = function (className) {
+        const style = document.createElement('style');
+        style.className = className;
+        return style;
+    };
+
+    /**
+     * Add text to a DOM element.
+     *
+     * @param {Element} el
+     *        The Element to add text content to.
+     *
+     * @param {string} content
+     *        The text to add to the element.
+     */
+    const setTextContent = function (el, content) {
+        if (el.styleSheet) {
+            el.styleSheet.cssText = content;
+        } else {
+            el.textContent = content;
+        }
+    };
+
+    /**
+     * @file dom-data.js
+     * @module dom-data
+     */
+
+    /**
+     * Element Data Store.
+     *
+     * Allows for binding data to an element without putting it directly on the
+     * element. Ex. Event listeners are stored here.
+     * (also from jsninja.com, slightly modified and updated for closure compiler)
+     *
+     * @type {Object}
+     * @private
+     */
+    var DomData = new WeakMap();
+
+    /**
+     * @file guid.js
+     * @module guid
+     */
+
+        // Default value for GUIDs. This allows us to reset the GUID counter in tests.
+        //
+        // The initial GUID is 3 because some users have come to rely on the first
+        // default player ID ending up as `vjs_video_3`.
+        //
+        // See: https://github.com/videojs/video.js/pull/6216
+    const _initialGuid = 3;
+
+    /**
+     * Unique ID for an element or function
+     *
+     * @type {Number}
+     */
+    let _guid = _initialGuid;
+
+    /**
+     * Get a unique auto-incrementing ID by number that has not been returned before.
+     *
+     * @return {number}
+     *         A new unique ID.
+     */
+    function newGUID() {
+        return _guid++;
+    }
+
+    /**
+     * @file events.js. An Event System (John Resig - Secrets of a JS Ninja http://jsninja.com/)
+     * (Original book version wasn't completely usable, so fixed some things and made Closure Compiler compatible)
+     * This should work very similarly to jQuery's events, however it's based off the book version which isn't as
+     * robust as jquery's, so there's probably some differences.
+     *
+     * @file events.js
+     * @module events
+     */
+
+    /**
+     * Clean up the listener cache and dispatchers
+     *
+     * @param {Element|Object} elem
+     *        Element to clean up
+     *
+     * @param {string} type
+     *        Type of event to clean up
+     */
+    function _cleanUpEvents(elem, type) {
+        if (!DomData.has(elem)) {
+            return;
+        }
+        const data = DomData.get(elem);
+
+        // Remove the events of a particular type if there are none left
+        if (data.handlers[type].length === 0) {
+            delete data.handlers[type];
+            // data.handlers[type] = null;
+            // Setting to null was causing an error with data.handlers
+
+            // Remove the meta-handler from the element
+            if (elem.removeEventListener) {
+                elem.removeEventListener(type, data.dispatcher, false);
+            } else if (elem.detachEvent) {
+                elem.detachEvent('on' + type, data.dispatcher);
+            }
+        }
+
+        // Remove the events object if there are no types left
+        if (Object.getOwnPropertyNames(data.handlers).length <= 0) {
+            delete data.handlers;
+            delete data.dispatcher;
+            delete data.disabled;
+        }
+
+        // Finally remove the element data if there is no data left
+        if (Object.getOwnPropertyNames(data).length === 0) {
+            DomData.delete(elem);
+        }
+    }
+
+    /**
+     * Loops through an array of event types and calls the requested method for each type.
+     *
+     * @param {Function} fn
+     *        The event method we want to use.
+     *
+     * @param {Element|Object} elem
+     *        Element or object to bind listeners to
+     *
+     * @param {string} type
+     *        Type of event to bind to.
+     *
+     * @param {Function} callback
+     *        Event listener.
+     */
+    function _handleMultipleEvents(fn, elem, types, callback) {
+        types.forEach(function (type) {
+            // Call the event method for each one of the types
+            fn(elem, type, callback);
+        });
+    }
+
+    /**
+     * Fix a native event to have standard property values
+     *
+     * @param {Object} event
+     *        Event object to fix.
+     *
+     * @return {Object}
+     *         Fixed event object.
+     */
+    function fixEvent(event) {
+        if (event.fixed_) {
+            return event;
+        }
+        function returnTrue() {
+            return true;
+        }
+        function returnFalse() {
+            return false;
+        }
+
+        // Test if fixing up is needed
+        // Used to check if !event.stopPropagation instead of isPropagationStopped
+        // But native events return true for stopPropagation, but don't have
+        // other expected methods like isPropagationStopped. Seems to be a problem
+        // with the Javascript Ninja code. So we're just overriding all events now.
+        if (!event || !event.isPropagationStopped || !event.isImmediatePropagationStopped) {
+            const old = event || window.event;
+            event = {};
+            // Clone the old object so that we can modify the values event = {};
+            // IE8 Doesn't like when you mess with native event properties
+            // Firefox returns false for event.hasOwnProperty('type') and other props
+            //  which makes copying more difficult.
+            // TODO: Probably best to create a whitelist of event props
+            for (const key in old) {
+                // Safari 6.0.3 warns you if you try to copy deprecated layerX/Y
+                // Chrome warns you if you try to copy deprecated keyboardEvent.keyLocation
+                // and webkitMovementX/Y
+                // Lighthouse complains if Event.path is copied
+                if (key !== 'layerX' && key !== 'layerY' && key !== 'keyLocation' && key !== 'webkitMovementX' && key !== 'webkitMovementY' && key !== 'path') {
+                    // Chrome 32+ warns if you try to copy deprecated returnValue, but
+                    // we still want to if preventDefault isn't supported (IE8).
+                    if (!(key === 'returnValue' && old.preventDefault)) {
+                        event[key] = old[key];
+                    }
+                }
+            }
+
+            // The event occurred on this element
+            if (!event.target) {
+                event.target = event.srcElement || document;
+            }
+
+            // Handle which other element the event is related to
+            if (!event.relatedTarget) {
+                event.relatedTarget = event.fromElement === event.target ? event.toElement : event.fromElement;
+            }
+
+            // Stop the default browser action
+            event.preventDefault = function () {
+                if (old.preventDefault) {
+                    old.preventDefault();
+                }
+                event.returnValue = false;
+                old.returnValue = false;
+                event.defaultPrevented = true;
+            };
+            event.defaultPrevented = false;
+
+            // Stop the event from bubbling
+            event.stopPropagation = function () {
+                if (old.stopPropagation) {
+                    old.stopPropagation();
+                }
+                event.cancelBubble = true;
+                old.cancelBubble = true;
+                event.isPropagationStopped = returnTrue;
+            };
+            event.isPropagationStopped = returnFalse;
+
+            // Stop the event from bubbling and executing other handlers
+            event.stopImmediatePropagation = function () {
+                if (old.stopImmediatePropagation) {
+                    old.stopImmediatePropagation();
+                }
+                event.isImmediatePropagationStopped = returnTrue;
+                event.stopPropagation();
+            };
+            event.isImmediatePropagationStopped = returnFalse;
+
+            // Handle mouse position
+            if (event.clientX !== null && event.clientX !== undefined) {
+                const doc = document.documentElement;
+                const body = document.body;
+                event.pageX = event.clientX + (doc && doc.scrollLeft || body && body.scrollLeft || 0) - (doc && doc.clientLeft || body && body.clientLeft || 0);
+                event.pageY = event.clientY + (doc && doc.scrollTop || body && body.scrollTop || 0) - (doc && doc.clientTop || body && body.clientTop || 0);
+            }
+
+            // Handle key presses
+            event.which = event.charCode || event.keyCode;
+
+            // Fix button for mouse clicks:
+            // 0 == left; 1 == middle; 2 == right
+            if (event.button !== null && event.button !== undefined) {
+                // The following is disabled because it does not pass videojs-standard
+                // and... yikes.
+                /* eslint-disable */
+                event.button = event.button & 1 ? 0 : event.button & 4 ? 1 : event.button & 2 ? 2 : 0;
+                /* eslint-enable */
+            }
+        }
+
+        event.fixed_ = true;
+        // Returns fixed-up instance
+        return event;
+    }
+
+    /**
+     * Whether passive event listeners are supported
+     */
+    let _supportsPassive;
+    const supportsPassive = function () {
+        if (typeof _supportsPassive !== 'boolean') {
+            _supportsPassive = false;
+            try {
+                const opts = Object.defineProperty({}, 'passive', {
+                    get() {
+                        _supportsPassive = true;
+                    }
+                });
+                window.addEventListener('test', null, opts);
+                window.removeEventListener('test', null, opts);
+            } catch (e) {
+                // disregard
+            }
+        }
+        return _supportsPassive;
+    };
+
+    /**
+     * Touch events Chrome expects to be passive
+     */
+    const passiveEvents = ['touchstart', 'touchmove'];
+
+    /**
+     * Add an event listener to element
+     * It stores the handler function in a separate cache object
+     * and adds a generic handler to the element's event,
+     * along with a unique id (guid) to the element.
+     *
+     * @param {Element|Object} elem
+     *        Element or object to bind listeners to
+     *
+     * @param {string|string[]} type
+     *        Type of event to bind to.
+     *
+     * @param {Function} fn
+     *        Event listener.
+     */
+    function on(elem, type, fn) {
+        if (Array.isArray(type)) {
+            return _handleMultipleEvents(on, elem, type, fn);
+        }
+        if (!DomData.has(elem)) {
+            DomData.set(elem, {});
+        }
+        const data = DomData.get(elem);
+
+        // We need a place to store all our handler data
+        if (!data.handlers) {
+            data.handlers = {};
+        }
+        if (!data.handlers[type]) {
+            data.handlers[type] = [];
+        }
+        if (!fn.guid) {
+            fn.guid = newGUID();
+        }
+        data.handlers[type].push(fn);
+        if (!data.dispatcher) {
+            data.disabled = false;
+            data.dispatcher = function (event, hash) {
+                if (data.disabled) {
+                    return;
+                }
+                event = fixEvent(event);
+                const handlers = data.handlers[event.type];
+                if (handlers) {
+                    // Copy handlers so if handlers are added/removed during the process it doesn't throw everything off.
+                    const handlersCopy = handlers.slice(0);
+                    for (let m = 0, n = handlersCopy.length; m < n; m++) {
+                        if (event.isImmediatePropagationStopped()) {
+                            break;
+                        } else {
+                            try {
+                                handlersCopy[m].call(elem, event, hash);
+                            } catch (e) {
+                                log$1.error(e);
+                            }
+                        }
+                    }
+                }
+            };
+        }
+        if (data.handlers[type].length === 1) {
+            if (elem.addEventListener) {
+                let options = false;
+                if (supportsPassive() && passiveEvents.indexOf(type) > -1) {
+                    options = {
+                        passive: true
+                    };
+                }
+                elem.addEventListener(type, data.dispatcher, options);
+            } else if (elem.attachEvent) {
+                elem.attachEvent('on' + type, data.dispatcher);
+            }
+        }
+    }
+
+    /**
+     * Removes event listeners from an element
+     *
+     * @param {Element|Object} elem
+     *        Object to remove listeners from.
+     *
+     * @param {string|string[]} [type]
+     *        Type of listener to remove. Don't include to remove all events from element.
+     *
+     * @param {Function} [fn]
+     *        Specific listener to remove. Don't include to remove listeners for an event
+     *        type.
+     */
+    function off(elem, type, fn) {
+        // Don't want to add a cache object through getElData if not needed
+        if (!DomData.has(elem)) {
+            return;
+        }
+        const data = DomData.get(elem);
+
+        // If no events exist, nothing to unbind
+        if (!data.handlers) {
+            return;
+        }
+        if (Array.isArray(type)) {
+            return _handleMultipleEvents(off, elem, type, fn);
+        }
+
+        // Utility function
+        const removeType = function (el, t) {
+            data.handlers[t] = [];
+            _cleanUpEvents(el, t);
+        };
+
+        // Are we removing all bound events?
+        if (type === undefined) {
+            for (const t in data.handlers) {
+                if (Object.prototype.hasOwnProperty.call(data.handlers || {}, t)) {
+                    removeType(elem, t);
+                }
+            }
+            return;
+        }
+        const handlers = data.handlers[type];
+
+        // If no handlers exist, nothing to unbind
+        if (!handlers) {
+            return;
+        }
+
+        // If no listener was provided, remove all listeners for type
+        if (!fn) {
+            removeType(elem, type);
+            return;
+        }
+
+        // We're only removing a single handler
+        if (fn.guid) {
+            for (let n = 0; n < handlers.length; n++) {
+                if (handlers[n].guid === fn.guid) {
+                    handlers.splice(n--, 1);
+                }
+            }
+        }
+        _cleanUpEvents(elem, type);
+    }
+
+    /**
+     * Trigger an event for an element
+     *
+     * @param {Element|Object} elem
+     *        Element to trigger an event on
+     *
+     * @param {EventTarget~Event|string} event
+     *        A string (the type) or an event object with a type attribute
+     *
+     * @param {Object} [hash]
+     *        data hash to pass along with the event
+     *
+     * @return {boolean|undefined}
+     *         Returns the opposite of `defaultPrevented` if default was
+     *         prevented. Otherwise, returns `undefined`
+     */
+    function trigger(elem, event, hash) {
+        // Fetches element data and a reference to the parent (for bubbling).
+        // Don't want to add a data object to cache for every parent,
+        // so checking hasElData first.
+        const elemData = DomData.has(elem) ? DomData.get(elem) : {};
+        const parent = elem.parentNode || elem.ownerDocument;
+        // type = event.type || event,
+        // handler;
+
+        // If an event name was passed as a string, creates an event out of it
+        if (typeof event === 'string') {
+            event = {
+                type: event,
+                target: elem
+            };
+        } else if (!event.target) {
+            event.target = elem;
+        }
+
+        // Normalizes the event properties.
+        event = fixEvent(event);
+
+        // If the passed element has a dispatcher, executes the established handlers.
+        if (elemData.dispatcher) {
+            elemData.dispatcher.call(elem, event, hash);
+        }
+
+        // Unless explicitly stopped or the event does not bubble (e.g. media events)
+        // recursively calls this function to bubble the event up the DOM.
+        if (parent && !event.isPropagationStopped() && event.bubbles === true) {
+            trigger.call(null, parent, event, hash);
+
+            // If at the top of the DOM, triggers the default action unless disabled.
+        } else if (!parent && !event.defaultPrevented && event.target && event.target[event.type]) {
+            if (!DomData.has(event.target)) {
+                DomData.set(event.target, {});
+            }
+            const targetData = DomData.get(event.target);
+
+            // Checks if the target has a default action for this event.
+            if (event.target[event.type]) {
+                // Temporarily disables event dispatching on the target as we have already executed the handler.
+                targetData.disabled = true;
+                // Executes the default action.
+                if (typeof event.target[event.type] === 'function') {
+                    event.target[event.type]();
+                }
+                // Re-enables event dispatching.
+                targetData.disabled = false;
+            }
+        }
+
+        // Inform the triggerer if the default was prevented by returning false
+        return !event.defaultPrevented;
+    }
+
+    /**
+     * Trigger a listener only once for an event.
+     *
+     * @param {Element|Object} elem
+     *        Element or object to bind to.
+     *
+     * @param {string|string[]} type
+     *        Name/type of event
+     *
+     * @param {Event~EventListener} fn
+     *        Event listener function
+     */
+    function one(elem, type, fn) {
+        if (Array.isArray(type)) {
+            return _handleMultipleEvents(one, elem, type, fn);
+        }
+        const func = function () {
+            off(elem, type, func);
+            fn.apply(this, arguments);
+        };
+
+        // copy the guid to the new function so it can removed using the original function's ID
+        func.guid = fn.guid = fn.guid || newGUID();
+        on(elem, type, func);
+    }
+
+    /**
+     * Trigger a listener only once and then turn if off for all
+     * configured events
+     *
+     * @param {Element|Object} elem
+     *        Element or object to bind to.
+     *
+     * @param {string|string[]} type
+     *        Name/type of event
+     *
+     * @param {Event~EventListener} fn
+     *        Event listener function
+     */
+    function any(elem, type, fn) {
+        const func = function () {
+            off(elem, type, func);
+            fn.apply(this, arguments);
+        };
+
+        // copy the guid to the new function so it can removed using the original function's ID
+        func.guid = fn.guid = fn.guid || newGUID();
+
+        // multiple ons, but one off for everything
+        on(elem, type, func);
+    }
+
+    var Events = /*#__PURE__*/Object.freeze({
+        __proto__: null,
+        fixEvent: fixEvent,
+        on: on,
+        off: off,
+        trigger: trigger,
+        one: one,
+        any: any
+    });
+
+    /**
+     * @file fn.js
+     * @module fn
+     */
+    const UPDATE_REFRESH_INTERVAL = 30;
+
+    /**
+     * A private, internal-only function for changing the context of a function.
+     *
+     * It also stores a unique id on the function so it can be easily removed from
+     * events.
+     *
+     * @private
+     * @function
+     * @param    {*} context
+     *           The object to bind as scope.
+     *
+     * @param    {Function} fn
+     *           The function to be bound to a scope.
+     *
+     * @param    {number} [uid]
+     *           An optional unique ID for the function to be set
+     *
+     * @return   {Function}
+     *           The new function that will be bound into the context given
+     */
+    const bind_ = function (context, fn, uid) {
+        // Make sure the function has a unique ID
+        if (!fn.guid) {
+            fn.guid = newGUID();
+        }
+
+        // Create the new function that changes the context
+        const bound = fn.bind(context);
+
+        // Allow for the ability to individualize this function
+        // Needed in the case where multiple objects might share the same prototype
+        // IF both items add an event listener with the same function, then you try to remove just one
+        // it will remove both because they both have the same guid.
+        // when using this, you need to use the bind method when you remove the listener as well.
+        // currently used in text tracks
+        bound.guid = uid ? uid + '_' + fn.guid : fn.guid;
+        return bound;
+    };
+
+    /**
+     * Wraps the given function, `fn`, with a new function that only invokes `fn`
+     * at most once per every `wait` milliseconds.
+     *
+     * @function
+     * @param    {Function} fn
+     *           The function to be throttled.
+     *
+     * @param    {number}   wait
+     *           The number of milliseconds by which to throttle.
+     *
+     * @return   {Function}
+     */
+    const throttle = function (fn, wait) {
+        let last = window.performance.now();
+        const throttled = function (...args) {
+            const now = window.performance.now();
+            if (now - last >= wait) {
+                fn(...args);
+                last = now;
+            }
+        };
+        return throttled;
+    };
+
+    /**
+     * Creates a debounced function that delays invoking `func` until after `wait`
+     * milliseconds have elapsed since the last time the debounced function was
+     * invoked.
+     *
+     * Inspired by lodash and underscore implementations.
+     *
+     * @function
+     * @param    {Function} func
+     *           The function to wrap with debounce behavior.
+     *
+     * @param    {number} wait
+     *           The number of milliseconds to wait after the last invocation.
+     *
+     * @param    {boolean} [immediate]
+     *           Whether or not to invoke the function immediately upon creation.
+     *
+     * @param    {Object} [context=window]
+     *           The "context" in which the debounced function should debounce. For
+     *           example, if this function should be tied to a Video.js player,
+     *           the player can be passed here. Alternatively, defaults to the
+     *           global `window` object.
+     *
+     * @return   {Function}
+     *           A debounced function.
+     */
+    const debounce = function (func, wait, immediate, context = window) {
+        let timeout;
+        const cancel = () => {
+            context.clearTimeout(timeout);
+            timeout = null;
+        };
+
+        /* eslint-disable consistent-this */
+        const debounced = function () {
+            const self = this;
+            const args = arguments;
+            let later = function () {
+                timeout = null;
+                later = null;
+                if (!immediate) {
+                    func.apply(self, args);
+                }
+            };
+            if (!timeout && immediate) {
+                func.apply(self, args);
+            }
+            context.clearTimeout(timeout);
+            timeout = context.setTimeout(later, wait);
+        };
+        /* eslint-enable consistent-this */
+
+        debounced.cancel = cancel;
+        return debounced;
+    };
+
+    var Fn = /*#__PURE__*/Object.freeze({
+        __proto__: null,
+        UPDATE_REFRESH_INTERVAL: UPDATE_REFRESH_INTERVAL,
+        bind_: bind_,
+        throttle: throttle,
+        debounce: debounce
+    });
+
+    /**
+     * @file src/js/event-target.js
+     */
+    let EVENT_MAP;
+
+    /**
+     * `EventTarget` is a class that can have the same API as the DOM `EventTarget`. It
+     * adds shorthand functions that wrap around lengthy functions. For example:
+     * the `on` function is a wrapper around `addEventListener`.
+     *
+     * @see [EventTarget Spec]{@link https://www.w3.org/TR/DOM-Level-2-Events/events.html#Events-EventTarget}
+     * @class EventTarget
+     */
+    class EventTarget$2 {
+        /**
+         * Adds an `event listener` to an instance of an `EventTarget`. An `event listener` is a
+         * function that will get called when an event with a certain name gets triggered.
+         *
+         * @param {string|string[]} type
+         *        An event name or an array of event names.
+         *
+         * @param {Function} fn
+         *        The function to call with `EventTarget`s
+         */
+        on(type, fn) {
+            // Remove the addEventListener alias before calling Events.on
+            // so we don't get into an infinite type loop
+            const ael = this.addEventListener;
+            this.addEventListener = () => {};
+            on(this, type, fn);
+            this.addEventListener = ael;
+        }
+        /**
+         * Removes an `event listener` for a specific event from an instance of `EventTarget`.
+         * This makes it so that the `event listener` will no longer get called when the
+         * named event happens.
+         *
+         * @param {string|string[]} type
+         *        An event name or an array of event names.
+         *
+         * @param {Function} fn
+         *        The function to remove.
+         */
+        off(type, fn) {
+            off(this, type, fn);
+        }
+        /**
+         * This function will add an `event listener` that gets triggered only once. After the
+         * first trigger it will get removed. This is like adding an `event listener`
+         * with {@link EventTarget#on} that calls {@link EventTarget#off} on itself.
+         *
+         * @param {string|string[]} type
+         *        An event name or an array of event names.
+         *
+         * @param {Function} fn
+         *        The function to be called once for each event name.
+         */
+        one(type, fn) {
+            // Remove the addEventListener aliasing Events.on
+            // so we don't get into an infinite type loop
+            const ael = this.addEventListener;
+            this.addEventListener = () => {};
+            one(this, type, fn);
+            this.addEventListener = ael;
+        }
+        /**
+         * This function will add an `event listener` that gets triggered only once and is
+         * removed from all events. This is like adding an array of `event listener`s
+         * with {@link EventTarget#on} that calls {@link EventTarget#off} on all events the
+         * first time it is triggered.
+         *
+         * @param {string|string[]} type
+         *        An event name or an array of event names.
+         *
+         * @param {Function} fn
+         *        The function to be called once for each event name.
+         */
+        any(type, fn) {
+            // Remove the addEventListener aliasing Events.on
+            // so we don't get into an infinite type loop
+            const ael = this.addEventListener;
+            this.addEventListener = () => {};
+            any(this, type, fn);
+            this.addEventListener = ael;
+        }
+        /**
+         * This function causes an event to happen. This will then cause any `event listeners`
+         * that are waiting for that event, to get called. If there are no `event listeners`
+         * for an event then nothing will happen.
+         *
+         * If the name of the `Event` that is being triggered is in `EventTarget.allowedEvents_`.
+         * Trigger will also call the `on` + `uppercaseEventName` function.
+         *
+         * Example:
+         * 'click' is in `EventTarget.allowedEvents_`, so, trigger will attempt to call
+         * `onClick` if it exists.
+         *
+         * @param {string|EventTarget~Event|Object} event
+         *        The name of the event, an `Event`, or an object with a key of type set to
+         *        an event name.
+         */
+        trigger(event) {
+            const type = event.type || event;
+
+            // deprecation
+            // In a future version we should default target to `this`
+            // similar to how we default the target to `elem` in
+            // `Events.trigger`. Right now the default `target` will be
+            // `document` due to the `Event.fixEvent` call.
+            if (typeof event === 'string') {
+                event = {
+                    type
+                };
+            }
+            event = fixEvent(event);
+            if (this.allowedEvents_[type] && this['on' + type]) {
+                this['on' + type](event);
+            }
+            trigger(this, event);
+        }
+        queueTrigger(event) {
+            // only set up EVENT_MAP if it'll be used
+            if (!EVENT_MAP) {
+                EVENT_MAP = new Map();
+            }
+            const type = event.type || event;
+            let map = EVENT_MAP.get(this);
+            if (!map) {
+                map = new Map();
+                EVENT_MAP.set(this, map);
+            }
+            const oldTimeout = map.get(type);
+            map.delete(type);
+            window.clearTimeout(oldTimeout);
+            const timeout = window.setTimeout(() => {
+                map.delete(type);
+                // if we cleared out all timeouts for the current target, delete its map
+                if (map.size === 0) {
+                    map = null;
+                    EVENT_MAP.delete(this);
+                }
+                this.trigger(event);
+            }, 0);
+            map.set(type, timeout);
+        }
+    }
+
+    /**
+     * A Custom DOM event.
+     *
+     * @typedef {CustomEvent} Event
+     * @see [Properties]{@link https://developer.mozilla.org/en-US/docs/Web/API/CustomEvent}
+     */
+
+    /**
+     * All event listeners should follow the following format.
+     *
+     * @callback EventTarget~EventListener
+     * @this {EventTarget}
+     *
+     * @param {Event} event
+     *        the event that triggered this function
+     *
+     * @param {Object} [hash]
+     *        hash of data sent during the event
+     */
+
+    /**
+     * An object containing event names as keys and booleans as values.
+     *
+     * > NOTE: If an event name is set to a true value here {@link EventTarget#trigger}
+     *         will have extra functionality. See that function for more information.
+     *
+     * @property EventTarget.prototype.allowedEvents_
+     * @private
+     */
+    EventTarget$2.prototype.allowedEvents_ = {};
+
+    /**
+     * An alias of {@link EventTarget#on}. Allows `EventTarget` to mimic
+     * the standard DOM API.
+     *
+     * @function
+     * @see {@link EventTarget#on}
+     */
+    EventTarget$2.prototype.addEventListener = EventTarget$2.prototype.on;
+
+    /**
+     * An alias of {@link EventTarget#off}. Allows `EventTarget` to mimic
+     * the standard DOM API.
+     *
+     * @function
+     * @see {@link EventTarget#off}
+     */
+    EventTarget$2.prototype.removeEventListener = EventTarget$2.prototype.off;
+
+    /**
+     * An alias of {@link EventTarget#trigger}. Allows `EventTarget` to mimic
+     * the standard DOM API.
+     *
+     * @function
+     * @see {@link EventTarget#trigger}
+     */
+    EventTarget$2.prototype.dispatchEvent = EventTarget$2.prototype.trigger;
+
+    /**
+     * @file mixins/evented.js
+     * @module evented
+     */
+    const objName = obj => {
+        if (typeof obj.name === 'function') {
+            return obj.name();
+        }
+        if (typeof obj.name === 'string') {
+            return obj.name;
+        }
+        if (obj.name_) {
+            return obj.name_;
+        }
+        if (obj.constructor && obj.constructor.name) {
+            return obj.constructor.name;
+        }
+        return typeof obj;
+    };
+
+    /**
+     * Returns whether or not an object has had the evented mixin applied.
+     *
+     * @param  {Object} object
+     *         An object to test.
+     *
+     * @return {boolean}
+     *         Whether or not the object appears to be evented.
+     */
+    const isEvented = object => object instanceof EventTarget$2 || !!object.eventBusEl_ && ['on', 'one', 'off', 'trigger'].every(k => typeof object[k] === 'function');
+
+    /**
+     * Adds a callback to run after the evented mixin applied.
+     *
+     * @param  {Object} object
+     *         An object to Add
+     * @param  {Function} callback
+     *         The callback to run.
+     */
+    const addEventedCallback = (target, callback) => {
+        if (isEvented(target)) {
+            callback();
+        } else {
+            if (!target.eventedCallbacks) {
+                target.eventedCallbacks = [];
+            }
+            target.eventedCallbacks.push(callback);
+        }
+    };
+
+    /**
+     * Whether a value is a valid event type - non-empty string or array.
+     *
+     * @private
+     * @param  {string|Array} type
+     *         The type value to test.
+     *
+     * @return {boolean}
+     *         Whether or not the type is a valid event type.
+     */
+    const isValidEventType = type =>
+        // The regex here verifies that the `type` contains at least one non-
+        // whitespace character.
+        typeof type === 'string' && /\S/.test(type) || Array.isArray(type) && !!type.length;
+
+    /**
+     * Validates a value to determine if it is a valid event target. Throws if not.
+     *
+     * @private
+     * @throws {Error}
+     *         If the target does not appear to be a valid event target.
+     *
+     * @param  {Object} target
+     *         The object to test.
+     *
+     * @param  {Object} obj
+     *         The evented object we are validating for
+     *
+     * @param  {string} fnName
+     *         The name of the evented mixin function that called this.
+     */
+    const validateTarget = (target, obj, fnName) => {
+        if (!target || !target.nodeName && !isEvented(target)) {
+            throw new Error(`Invalid target for ${objName(obj)}#${fnName}; must be a DOM node or evented object.`);
+        }
+    };
+
+    /**
+     * Validates a value to determine if it is a valid event target. Throws if not.
+     *
+     * @private
+     * @throws {Error}
+     *         If the type does not appear to be a valid event type.
+     *
+     * @param  {string|Array} type
+     *         The type to test.
+     *
+     * @param  {Object} obj
+     *         The evented object we are validating for
+     *
+     * @param  {string} fnName
+     *         The name of the evented mixin function that called this.
+     */
+    const validateEventType = (type, obj, fnName) => {
+        if (!isValidEventType(type)) {
+            throw new Error(`Invalid event type for ${objName(obj)}#${fnName}; must be a non-empty string or array.`);
+        }
+    };
+
+    /**
+     * Validates a value to determine if it is a valid listener. Throws if not.
+     *
+     * @private
+     * @throws {Error}
+     *         If the listener is not a function.
+     *
+     * @param  {Function} listener
+     *         The listener to test.
+     *
+     * @param  {Object} obj
+     *         The evented object we are validating for
+     *
+     * @param  {string} fnName
+     *         The name of the evented mixin function that called this.
+     */
+    const validateListener = (listener, obj, fnName) => {
+        if (typeof listener !== 'function') {
+            throw new Error(`Invalid listener for ${objName(obj)}#${fnName}; must be a function.`);
+        }
+    };
+
+    /**
+     * Takes an array of arguments given to `on()` or `one()`, validates them, and
+     * normalizes them into an object.
+     *
+     * @private
+     * @param  {Object} self
+     *         The evented object on which `on()` or `one()` was called. This
+     *         object will be bound as the `this` value for the listener.
+     *
+     * @param  {Array} args
+     *         An array of arguments passed to `on()` or `one()`.
+     *
+     * @param  {string} fnName
+     *         The name of the evented mixin function that called this.
+     *
+     * @return {Object}
+     *         An object containing useful values for `on()` or `one()` calls.
+     */
+    const normalizeListenArgs = (self, args, fnName) => {
+        // If the number of arguments is less than 3, the target is always the
+        // evented object itself.
+        const isTargetingSelf = args.length < 3 || args[0] === self || args[0] === self.eventBusEl_;
+        let target;
+        let type;
+        let listener;
+        if (isTargetingSelf) {
+            target = self.eventBusEl_;
+
+            // Deal with cases where we got 3 arguments, but we are still listening to
+            // the evented object itself.
+            if (args.length >= 3) {
+                args.shift();
+            }
+            [type, listener] = args;
+        } else {
+            [target, type, listener] = args;
+        }
+        validateTarget(target, self, fnName);
+        validateEventType(type, self, fnName);
+        validateListener(listener, self, fnName);
+        listener = bind_(self, listener);
+        return {
+            isTargetingSelf,
+            target,
+            type,
+            listener
+        };
+    };
+
+    /**
+     * Adds the listener to the event type(s) on the target, normalizing for
+     * the type of target.
+     *
+     * @private
+     * @param  {Element|Object} target
+     *         A DOM node or evented object.
+     *
+     * @param  {string} method
+     *         The event binding method to use ("on" or "one").
+     *
+     * @param  {string|Array} type
+     *         One or more event type(s).
+     *
+     * @param  {Function} listener
+     *         A listener function.
+     */
+    const listen = (target, method, type, listener) => {
+        validateTarget(target, target, method);
+        if (target.nodeName) {
+            Events[method](target, type, listener);
+        } else {
+            target[method](type, listener);
+        }
+    };
+
+    /**
+     * Contains methods that provide event capabilities to an object which is passed
+     * to {@link module:evented|evented}.
+     *
+     * @mixin EventedMixin
+     */
+    const EventedMixin = {
+        /**
+         * Add a listener to an event (or events) on this object or another evented
+         * object.
+         *
+         * @param  {string|Array|Element|Object} targetOrType
+         *         If this is a string or array, it represents the event type(s)
+         *         that will trigger the listener.
+         *
+         *         Another evented object can be passed here instead, which will
+         *         cause the listener to listen for events on _that_ object.
+         *
+         *         In either case, the listener's `this` value will be bound to
+         *         this object.
+         *
+         * @param  {string|Array|Function} typeOrListener
+         *         If the first argument was a string or array, this should be the
+         *         listener function. Otherwise, this is a string or array of event
+         *         type(s).
+         *
+         * @param  {Function} [listener]
+         *         If the first argument was another evented object, this will be
+         *         the listener function.
+         */
+        on(...args) {
+            const {
+                isTargetingSelf,
+                target,
+                type,
+                listener
+            } = normalizeListenArgs(this, args, 'on');
+            listen(target, 'on', type, listener);
+
+            // If this object is listening to another evented object.
+            if (!isTargetingSelf) {
+                // If this object is disposed, remove the listener.
+                const removeListenerOnDispose = () => this.off(target, type, listener);
+
+                // Use the same function ID as the listener so we can remove it later it
+                // using the ID of the original listener.
+                removeListenerOnDispose.guid = listener.guid;
+
+                // Add a listener to the target's dispose event as well. This ensures
+                // that if the target is disposed BEFORE this object, we remove the
+                // removal listener that was just added. Otherwise, we create a memory leak.
+                const removeRemoverOnTargetDispose = () => this.off('dispose', removeListenerOnDispose);
+
+                // Use the same function ID as the listener so we can remove it later
+                // it using the ID of the original listener.
+                removeRemoverOnTargetDispose.guid = listener.guid;
+                listen(this, 'on', 'dispose', removeListenerOnDispose);
+                listen(target, 'on', 'dispose', removeRemoverOnTargetDispose);
+            }
+        },
+        /**
+         * Add a listener to an event (or events) on this object or another evented
+         * object. The listener will be called once per event and then removed.
+         *
+         * @param  {string|Array|Element|Object} targetOrType
+         *         If this is a string or array, it represents the event type(s)
+         *         that will trigger the listener.
+         *
+         *         Another evented object can be passed here instead, which will
+         *         cause the listener to listen for events on _that_ object.
+         *
+         *         In either case, the listener's `this` value will be bound to
+         *         this object.
+         *
+         * @param  {string|Array|Function} typeOrListener
+         *         If the first argument was a string or array, this should be the
+         *         listener function. Otherwise, this is a string or array of event
+         *         type(s).
+         *
+         * @param  {Function} [listener]
+         *         If the first argument was another evented object, this will be
+         *         the listener function.
+         */
+        one(...args) {
+            const {
+                isTargetingSelf,
+                target,
+                type,
+                listener
+            } = normalizeListenArgs(this, args, 'one');
+
+            // Targeting this evented object.
+            if (isTargetingSelf) {
+                listen(target, 'one', type, listener);
+
+                // Targeting another evented object.
+            } else {
+                // TODO: This wrapper is incorrect! It should only
+                //       remove the wrapper for the event type that called it.
+                //       Instead all listeners are removed on the first trigger!
+                //       see https://github.com/videojs/video.js/issues/5962
+                const wrapper = (...largs) => {
+                    this.off(target, type, wrapper);
+                    listener.apply(null, largs);
+                };
+
+                // Use the same function ID as the listener so we can remove it later
+                // it using the ID of the original listener.
+                wrapper.guid = listener.guid;
+                listen(target, 'one', type, wrapper);
+            }
+        },
+        /**
+         * Add a listener to an event (or events) on this object or another evented
+         * object. The listener will only be called once for the first event that is triggered
+         * then removed.
+         *
+         * @param  {string|Array|Element|Object} targetOrType
+         *         If this is a string or array, it represents the event type(s)
+         *         that will trigger the listener.
+         *
+         *         Another evented object can be passed here instead, which will
+         *         cause the listener to listen for events on _that_ object.
+         *
+         *         In either case, the listener's `this` value will be bound to
+         *         this object.
+         *
+         * @param  {string|Array|Function} typeOrListener
+         *         If the first argument was a string or array, this should be the
+         *         listener function. Otherwise, this is a string or array of event
+         *         type(s).
+         *
+         * @param  {Function} [listener]
+         *         If the first argument was another evented object, this will be
+         *         the listener function.
+         */
+        any(...args) {
+            const {
+                isTargetingSelf,
+                target,
+                type,
+                listener
+            } = normalizeListenArgs(this, args, 'any');
+
+            // Targeting this evented object.
+            if (isTargetingSelf) {
+                listen(target, 'any', type, listener);
+
+                // Targeting another evented object.
+            } else {
+                const wrapper = (...largs) => {
+                    this.off(target, type, wrapper);
+                    listener.apply(null, largs);
+                };
+
+                // Use the same function ID as the listener so we can remove it later
+                // it using the ID of the original listener.
+                wrapper.guid = listener.guid;
+                listen(target, 'any', type, wrapper);
+            }
+        },
+        /**
+         * Removes listener(s) from event(s) on an evented object.
+         *
+         * @param  {string|Array|Element|Object} [targetOrType]
+         *         If this is a string or array, it represents the event type(s).
+         *
+         *         Another evented object can be passed here instead, in which case
+         *         ALL 3 arguments are _required_.
+         *
+         * @param  {string|Array|Function} [typeOrListener]
+         *         If the first argument was a string or array, this may be the
+         *         listener function. Otherwise, this is a string or array of event
+         *         type(s).
+         *
+         * @param  {Function} [listener]
+         *         If the first argument was another evented object, this will be
+         *         the listener function; otherwise, _all_ listeners bound to the
+         *         event type(s) will be removed.
+         */
+        off(targetOrType, typeOrListener, listener) {
+            // Targeting this evented object.
+            if (!targetOrType || isValidEventType(targetOrType)) {
+                off(this.eventBusEl_, targetOrType, typeOrListener);
+
+                // Targeting another evented object.
+            } else {
+                const target = targetOrType;
+                const type = typeOrListener;
+
+                // Fail fast and in a meaningful way!
+                validateTarget(target, this, 'off');
+                validateEventType(type, this, 'off');
+                validateListener(listener, this, 'off');
+
+                // Ensure there's at least a guid, even if the function hasn't been used
+                listener = bind_(this, listener);
+
+                // Remove the dispose listener on this evented object, which was given
+                // the same guid as the event listener in on().
+                this.off('dispose', listener);
+                if (target.nodeName) {
+                    off(target, type, listener);
+                    off(target, 'dispose', listener);
+                } else if (isEvented(target)) {
+                    target.off(type, listener);
+                    target.off('dispose', listener);
+                }
+            }
+        },
+        /**
+         * Fire an event on this evented object, causing its listeners to be called.
+         *
+         * @param   {string|Object} event
+         *          An event type or an object with a type property.
+         *
+         * @param   {Object} [hash]
+         *          An additional object to pass along to listeners.
+         *
+         * @return {boolean}
+         *          Whether or not the default behavior was prevented.
+         */
+        trigger(event, hash) {
+            validateTarget(this.eventBusEl_, this, 'trigger');
+            const type = event && typeof event !== 'string' ? event.type : event;
+            if (!isValidEventType(type)) {
+                throw new Error(`Invalid event type for ${objName(this)}#trigger; ` + 'must be a non-empty string or object with a type key that has a non-empty value.');
+            }
+            return trigger(this.eventBusEl_, event, hash);
+        }
+    };
+
+    /**
+     * Applies {@link module:evented~EventedMixin|EventedMixin} to a target object.
+     *
+     * @param  {Object} target
+     *         The object to which to add event methods.
+     *
+     * @param  {Object} [options={}]
+     *         Options for customizing the mixin behavior.
+     *
+     * @param  {string} [options.eventBusKey]
+     *         By default, adds a `eventBusEl_` DOM element to the target object,
+     *         which is used as an event bus. If the target object already has a
+     *         DOM element that should be used, pass its key here.
+     *
+     * @return {Object}
+     *         The target object.
+     */
+    function evented(target, options = {}) {
+        const {
+            eventBusKey
+        } = options;
+
+        // Set or create the eventBusEl_.
+        if (eventBusKey) {
+            if (!target[eventBusKey].nodeName) {
+                throw new Error(`The eventBusKey "${eventBusKey}" does not refer to an element.`);
+            }
+            target.eventBusEl_ = target[eventBusKey];
+        } else {
+            target.eventBusEl_ = createEl('span', {
+                className: 'vjs-event-bus'
+            });
+        }
+        Object.assign(target, EventedMixin);
+        if (target.eventedCallbacks) {
+            target.eventedCallbacks.forEach(callback => {
+                callback();
+            });
+        }
+
+        // When any evented object is disposed, it removes all its listeners.
+        target.on('dispose', () => {
+            target.off();
+            [target, target.el_, target.eventBusEl_].forEach(function (val) {
+                if (val && DomData.has(val)) {
+                    DomData.delete(val);
+                }
+            });
+            window.setTimeout(() => {
+                target.eventBusEl_ = null;
+            }, 0);
+        });
+        return target;
+    }
+
+    /**
+     * @file mixins/stateful.js
+     * @module stateful
+     */
+
+    /**
+     * Contains methods that provide statefulness to an object which is passed
+     * to {@link module:stateful}.
+     *
+     * @mixin StatefulMixin
+     */
+    const StatefulMixin = {
+        /**
+         * A hash containing arbitrary keys and values representing the state of
+         * the object.
+         *
+         * @type {Object}
+         */
+        state: {},
+        /**
+         * Set the state of an object by mutating its
+         * {@link module:stateful~StatefulMixin.state|state} object in place.
+         *
+         * @fires   module:stateful~StatefulMixin#statechanged
+         * @param   {Object|Function} stateUpdates
+         *          A new set of properties to shallow-merge into the plugin state.
+         *          Can be a plain object or a function returning a plain object.
+         *
+         * @return {Object|undefined}
+         *          An object containing changes that occurred. If no changes
+         *          occurred, returns `undefined`.
+         */
+        setState(stateUpdates) {
+            // Support providing the `stateUpdates` state as a function.
+            if (typeof stateUpdates === 'function') {
+                stateUpdates = stateUpdates();
+            }
+            let changes;
+            each(stateUpdates, (value, key) => {
+                // Record the change if the value is different from what's in the
+                // current state.
+                if (this.state[key] !== value) {
+                    changes = changes || {};
+                    changes[key] = {
+                        from: this.state[key],
+                        to: value
+                    };
+                }
+                this.state[key] = value;
+            });
+
+            // Only trigger "statechange" if there were changes AND we have a trigger
+            // function. This allows us to not require that the target object be an
+            // evented object.
+            if (changes && isEvented(this)) {
+                /**
+                 * An event triggered on an object that is both
+                 * {@link module:stateful|stateful} and {@link module:evented|evented}
+                 * indicating that its state has changed.
+                 *
+                 * @event    module:stateful~StatefulMixin#statechanged
+                 * @type     {Object}
+                 * @property {Object} changes
+                 *           A hash containing the properties that were changed and
+                 *           the values they were changed `from` and `to`.
+                 */
+                this.trigger({
+                    changes,
+                    type: 'statechanged'
+                });
+            }
+            return changes;
+        }
+    };
+
+    /**
+     * Applies {@link module:stateful~StatefulMixin|StatefulMixin} to a target
+     * object.
+     *
+     * If the target object is {@link module:evented|evented} and has a
+     * `handleStateChanged` method, that method will be automatically bound to the
+     * `statechanged` event on itself.
+     *
+     * @param   {Object} target
+     *          The object to be made stateful.
+     *
+     * @param   {Object} [defaultState]
+     *          A default set of properties to populate the newly-stateful object's
+     *          `state` property.
+     *
+     * @return {Object}
+     *          Returns the `target`.
+     */
+    function stateful(target, defaultState) {
+        Object.assign(target, StatefulMixin);
+
+        // This happens after the mixing-in because we need to replace the `state`
+        // added in that step.
+        target.state = Object.assign({}, target.state, defaultState);
+
+        // Auto-bind the `handleStateChanged` method of the target object if it exists.
+        if (typeof target.handleStateChanged === 'function' && isEvented(target)) {
+            target.on('statechanged', target.handleStateChanged);
+        }
+        return target;
+    }
+
+    /**
+     * @file str.js
+     * @module to-lower-case
+     */
+
+    /**
+     * Lowercase the first letter of a string.
+     *
+     * @param {string} string
+     *        String to be lowercased
+     *
+     * @return {string}
+     *         The string with a lowercased first letter
+     */
+    const toLowerCase = function (string) {
+        if (typeof string !== 'string') {
+            return string;
+        }
+        return string.replace(/./, w => w.toLowerCase());
+    };
+
+    /**
+     * Uppercase the first letter of a string.
+     *
+     * @param {string} string
+     *        String to be uppercased
+     *
+     * @return {string}
+     *         The string with an uppercased first letter
+     */
+    const toTitleCase$1 = function (string) {
+        if (typeof string !== 'string') {
+            return string;
+        }
+        return string.replace(/./, w => w.toUpperCase());
+    };
+
+    /**
+     * Compares the TitleCase versions of the two strings for equality.
+     *
+     * @param {string} str1
+     *        The first string to compare
+     *
+     * @param {string} str2
+     *        The second string to compare
+     *
+     * @return {boolean}
+     *         Whether the TitleCase versions of the strings are equal
+     */
+    const titleCaseEquals = function (str1, str2) {
+        return toTitleCase$1(str1) === toTitleCase$1(str2);
+    };
+
+    var Str = /*#__PURE__*/Object.freeze({
+        __proto__: null,
+        toLowerCase: toLowerCase,
+        toTitleCase: toTitleCase$1,
+        titleCaseEquals: titleCaseEquals
+    });
+
+    var commonjsGlobal = typeof globalThis !== 'undefined' ? globalThis : typeof window !== 'undefined' ? window : typeof global !== 'undefined' ? global : typeof self !== 'undefined' ? self : {};
+
+    function unwrapExports (x) {
+        return x && x.__esModule && Object.prototype.hasOwnProperty.call(x, 'default') ? x['default'] : x;
+    }
+
+    function createCommonjsModule(fn, module) {
+        return module = { exports: {} }, fn(module, module.exports), module.exports;
+    }
+
+    var keycode = createCommonjsModule(function (module, exports) {
+        // Source: http://jsfiddle.net/vWx8V/
+        // http://stackoverflow.com/questions/5603195/full-list-of-javascript-keycodes
+
+        /**
+         * Conenience method returns corresponding value for given keyName or keyCode.
+         *
+         * @param {Mixed} keyCode {Number} or keyName {String}
+         * @return {Mixed}
+         * @api public
+         */
+
+        function keyCode(searchInput) {
+            // Keyboard Events
+            if (searchInput && 'object' === typeof searchInput) {
+                var hasKeyCode = searchInput.which || searchInput.keyCode || searchInput.charCode;
+                if (hasKeyCode) searchInput = hasKeyCode;
+            }
+
+            // Numbers
+            if ('number' === typeof searchInput) return names[searchInput];
+
+            // Everything else (cast to string)
+            var search = String(searchInput);
+
+            // check codes
+            var foundNamedKey = codes[search.toLowerCase()];
+            if (foundNamedKey) return foundNamedKey;
+
+            // check aliases
+            var foundNamedKey = aliases[search.toLowerCase()];
+            if (foundNamedKey) return foundNamedKey;
+
+            // weird character?
+            if (search.length === 1) return search.charCodeAt(0);
+            return undefined;
+        }
+
+        /**
+         * Compares a keyboard event with a given keyCode or keyName.
+         *
+         * @param {Event} event Keyboard event that should be tested
+         * @param {Mixed} keyCode {Number} or keyName {String}
+         * @return {Boolean}
+         * @api public
+         */
+        keyCode.isEventKey = function isEventKey(event, nameOrCode) {
+            if (event && 'object' === typeof event) {
+                var keyCode = event.which || event.keyCode || event.charCode;
+                if (keyCode === null || keyCode === undefined) {
+                    return false;
+                }
+                if (typeof nameOrCode === 'string') {
+                    // check codes
+                    var foundNamedKey = codes[nameOrCode.toLowerCase()];
+                    if (foundNamedKey) {
+                        return foundNamedKey === keyCode;
+                    }
+
+                    // check aliases
+                    var foundNamedKey = aliases[nameOrCode.toLowerCase()];
+                    if (foundNamedKey) {
+                        return foundNamedKey === keyCode;
+                    }
+                } else if (typeof nameOrCode === 'number') {
+                    return nameOrCode === keyCode;
+                }
+                return false;
+            }
+        };
+        exports = module.exports = keyCode;
+
+        /**
+         * Get by name
+         *
+         *   exports.code['enter'] // => 13
+         */
+
+        var codes = exports.code = exports.codes = {
+            'backspace': 8,
+            'tab': 9,
+            'enter': 13,
+            'shift': 16,
+            'ctrl': 17,
+            'alt': 18,
+            'pause/break': 19,
+            'caps lock': 20,
+            'esc': 27,
+            'space': 32,
+            'page up': 33,
+            'page down': 34,
+            'end': 35,
+            'home': 36,
+            'left': 37,
+            'up': 38,
+            'right': 39,
+            'down': 40,
+            'insert': 45,
+            'delete': 46,
+            'command': 91,
+            'left command': 91,
+            'right command': 93,
+            'numpad *': 106,
+            'numpad +': 107,
+            'numpad -': 109,
+            'numpad .': 110,
+            'numpad /': 111,
+            'num lock': 144,
+            'scroll lock': 145,
+            'my computer': 182,
+            'my calculator': 183,
+            ';': 186,
+            '=': 187,
+            ',': 188,
+            '-': 189,
+            '.': 190,
+            '/': 191,
+            '`': 192,
+            '[': 219,
+            '\\': 220,
+            ']': 221,
+            "'": 222
+        };
+
+        // Helper aliases
+
+        var aliases = exports.aliases = {
+            'windows': 91,
+            '⇧': 16,
+            '⌥': 18,
+            '⌃': 17,
+            '⌘': 91,
+            'ctl': 17,
+            'control': 17,
+            'option': 18,
+            'pause': 19,
+            'break': 19,
+            'caps': 20,
+            'return': 13,
+            'escape': 27,
+            'spc': 32,
+            'spacebar': 32,
+            'pgup': 33,
+            'pgdn': 34,
+            'ins': 45,
+            'del': 46,
+            'cmd': 91
+        };
+
+        /*!
+     * Programatically add the following
+     */
+
+        // lower case chars
+        for (i = 97; i < 123; i++) codes[String.fromCharCode(i)] = i - 32;
+
+        // numbers
+        for (var i = 48; i < 58; i++) codes[i - 48] = i;
+
+        // function keys
+        for (i = 1; i < 13; i++) codes['f' + i] = i + 111;
+
+        // numpad keys
+        for (i = 0; i < 10; i++) codes['numpad ' + i] = i + 96;
+
+        /**
+         * Get by code
+         *
+         *   exports.name[13] // => 'Enter'
+         */
+
+        var names = exports.names = exports.title = {}; // title for backward compat
+
+        // Create reverse mapping
+        for (i in codes) names[codes[i]] = i;
+
+        // Add aliases
+        for (var alias in aliases) {
+            codes[alias] = aliases[alias];
+        }
+    });
+    keycode.code;
+    keycode.codes;
+    keycode.aliases;
+    keycode.names;
+    keycode.title;
+
+    /**
+     * Player Component - Base class for all UI objects
+     *
+     * @file component.js
+     */
+
+    /**
+     * Base class for all UI Components.
+     * Components are UI objects which represent both a javascript object and an element
+     * in the DOM. They can be children of other components, and can have
+     * children themselves.
+     *
+     * Components can also use methods from {@link EventTarget}
+     */
+    class Component$1 {
+        /**
+         * A callback that is called when a component is ready. Does not have any
+         * parameters and any callback value will be ignored.
+         *
+         * @callback ReadyCallback
+         * @this Component
+         */
+
+        /**
+         * Creates an instance of this class.
+         *
+         * @param { import('./player').default } player
+         *        The `Player` that this class should be attached to.
+         *
+         * @param {Object} [options]
+         *        The key/value store of component options.
+         *
+         * @param {Object[]} [options.children]
+         *        An array of children objects to initialize this component with. Children objects have
+         *        a name property that will be used if more than one component of the same type needs to be
+         *        added.
+         *
+         * @param  {string} [options.className]
+         *         A class or space separated list of classes to add the component
+         *
+         * @param {ReadyCallback} [ready]
+         *        Function that gets called when the `Component` is ready.
+         */
+        constructor(player, options, ready) {
+            // The component might be the player itself and we can't pass `this` to super
+            if (!player && this.play) {
+                this.player_ = player = this; // eslint-disable-line
+            } else {
+                this.player_ = player;
+            }
+            this.isDisposed_ = false;
+
+            // Hold the reference to the parent component via `addChild` method
+            this.parentComponent_ = null;
+
+            // Make a copy of prototype.options_ to protect against overriding defaults
+            this.options_ = merge$2({}, this.options_);
+
+            // Updated options with supplied options
+            options = this.options_ = merge$2(this.options_, options);
+
+            // Get ID from options or options element if one is supplied
+            this.id_ = options.id || options.el && options.el.id;
+
+            // If there was no ID from the options, generate one
+            if (!this.id_) {
+                // Don't require the player ID function in the case of mock players
+                const id = player && player.id && player.id() || 'no_player';
+                this.id_ = `${id}_component_${newGUID()}`;
+            }
+            this.name_ = options.name || null;
+
+            // Create element if one wasn't provided in options
+            if (options.el) {
+                this.el_ = options.el;
+            } else if (options.createEl !== false) {
+                this.el_ = this.createEl();
+            }
+            if (options.className && this.el_) {
+                options.className.split(' ').forEach(c => this.addClass(c));
+            }
+
+            // Remove the placeholder event methods. If the component is evented, the
+            // real methods are added next
+            ['on', 'off', 'one', 'any', 'trigger'].forEach(fn => {
+                this[fn] = undefined;
+            });
+
+            // if evented is anything except false, we want to mixin in evented
+            if (options.evented !== false) {
+                // Make this an evented object and use `el_`, if available, as its event bus
+                evented(this, {
+                    eventBusKey: this.el_ ? 'el_' : null
+                });
+                this.handleLanguagechange = this.handleLanguagechange.bind(this);
+                this.on(this.player_, 'languagechange', this.handleLanguagechange);
+            }
+            stateful(this, this.constructor.defaultState);
+            this.children_ = [];
+            this.childIndex_ = {};
+            this.childNameIndex_ = {};
+            this.setTimeoutIds_ = new Set();
+            this.setIntervalIds_ = new Set();
+            this.rafIds_ = new Set();
+            this.namedRafs_ = new Map();
+            this.clearingTimersOnDispose_ = false;
+
+            // Add any child components in options
+            if (options.initChildren !== false) {
+                this.initChildren();
+            }
+
+            // Don't want to trigger ready here or it will go before init is actually
+            // finished for all children that run this constructor
+            this.ready(ready);
+            if (options.reportTouchActivity !== false) {
+                this.enableTouchActivity();
+            }
+        }
+
+        // `on`, `off`, `one`, `any` and `trigger` are here so tsc includes them in definitions.
+        // They are replaced or removed in the constructor
+
+        /**
+         * Adds an `event listener` to an instance of an `EventTarget`. An `event listener` is a
+         * function that will get called when an event with a certain name gets triggered.
+         *
+         * @param {string|string[]} type
+         *        An event name or an array of event names.
+         *
+         * @param {Function} fn
+         *        The function to call with `EventTarget`s
+         */
+        on(type, fn) {}
+
+        /**
+         * Removes an `event listener` for a specific event from an instance of `EventTarget`.
+         * This makes it so that the `event listener` will no longer get called when the
+         * named event happens.
+         *
+         * @param {string|string[]} type
+         *        An event name or an array of event names.
+         *
+         * @param {Function} fn
+         *        The function to remove.
+         */
+        off(type, fn) {}
+
+        /**
+         * This function will add an `event listener` that gets triggered only once. After the
+         * first trigger it will get removed. This is like adding an `event listener`
+         * with {@link EventTarget#on} that calls {@link EventTarget#off} on itself.
+         *
+         * @param {string|string[]} type
+         *        An event name or an array of event names.
+         *
+         * @param {Function} fn
+         *        The function to be called once for each event name.
+         */
+        one(type, fn) {}
+
+        /**
+         * This function will add an `event listener` that gets triggered only once and is
+         * removed from all events. This is like adding an array of `event listener`s
+         * with {@link EventTarget#on} that calls {@link EventTarget#off} on all events the
+         * first time it is triggered.
+         *
+         * @param {string|string[]} type
+         *        An event name or an array of event names.
+         *
+         * @param {Function} fn
+         *        The function to be called once for each event name.
+         */
+        any(type, fn) {}
+
+        /**
+         * This function causes an event to happen. This will then cause any `event listeners`
+         * that are waiting for that event, to get called. If there are no `event listeners`
+         * for an event then nothing will happen.
+         *
+         * If the name of the `Event` that is being triggered is in `EventTarget.allowedEvents_`.
+         * Trigger will also call the `on` + `uppercaseEventName` function.
+         *
+         * Example:
+         * 'click' is in `EventTarget.allowedEvents_`, so, trigger will attempt to call
+         * `onClick` if it exists.
+         *
+         * @param {string|Event|Object} event
+         *        The name of the event, an `Event`, or an object with a key of type set to
+         *        an event name.
+         */
+        trigger(event) {}
+
+        /**
+         * Dispose of the `Component` and all child components.
+         *
+         * @fires Component#dispose
+         *
+         * @param {Object} options
+         * @param {Element} options.originalEl element with which to replace player element
+         */
+        dispose(options = {}) {
+            // Bail out if the component has already been disposed.
+            if (this.isDisposed_) {
+                return;
+            }
+            if (this.readyQueue_) {
+                this.readyQueue_.length = 0;
+            }
+
+            /**
+             * Triggered when a `Component` is disposed.
+             *
+             * @event Component#dispose
+             * @type {Event}
+             *
+             * @property {boolean} [bubbles=false]
+             *           set to false so that the dispose event does not
+             *           bubble up
+             */
+            this.trigger({
+                type: 'dispose',
+                bubbles: false
+            });
+            this.isDisposed_ = true;
+
+            // Dispose all children.
+            if (this.children_) {
+                for (let i = this.children_.length - 1; i >= 0; i--) {
+                    if (this.children_[i].dispose) {
+                        this.children_[i].dispose();
+                    }
+                }
+            }
+
+            // Delete child references
+            this.children_ = null;
+            this.childIndex_ = null;
+            this.childNameIndex_ = null;
+            this.parentComponent_ = null;
+            if (this.el_) {
+                // Remove element from DOM
+                if (this.el_.parentNode) {
+                    if (options.restoreEl) {
+                        this.el_.parentNode.replaceChild(options.restoreEl, this.el_);
+                    } else {
+                        this.el_.parentNode.removeChild(this.el_);
+                    }
+                }
+                this.el_ = null;
+            }
+
+            // remove reference to the player after disposing of the element
+            this.player_ = null;
+        }
+
+        /**
+         * Determine whether or not this component has been disposed.
+         *
+         * @return {boolean}
+         *         If the component has been disposed, will be `true`. Otherwise, `false`.
+         */
+        isDisposed() {
+            return Boolean(this.isDisposed_);
+        }
+
+        /**
+         * Return the {@link Player} that the `Component` has attached to.
+         *
+         * @return { import('./player').default }
+         *         The player that this `Component` has attached to.
+         */
+        player() {
+            return this.player_;
+        }
+
+        /**
+         * Deep merge of options objects with new options.
+         * > Note: When both `obj` and `options` contain properties whose values are objects.
+         *         The two properties get merged using {@link module:obj.merge}
+         *
+         * @param {Object} obj
+         *        The object that contains new options.
+         *
+         * @return {Object}
+         *         A new object of `this.options_` and `obj` merged together.
+         */
+        options(obj) {
+            if (!obj) {
+                return this.options_;
+            }
+            this.options_ = merge$2(this.options_, obj);
+            return this.options_;
+        }
+
+        /**
+         * Get the `Component`s DOM element
+         *
+         * @return {Element}
+         *         The DOM element for this `Component`.
+         */
+        el() {
+            return this.el_;
+        }
+
+        /**
+         * Create the `Component`s DOM element.
+         *
+         * @param {string} [tagName]
+         *        Element's DOM node type. e.g. 'div'
+         *
+         * @param {Object} [properties]
+         *        An object of properties that should be set.
+         *
+         * @param {Object} [attributes]
+         *        An object of attributes that should be set.
+         *
+         * @return {Element}
+         *         The element that gets created.
+         */
+        createEl(tagName, properties, attributes) {
+            return createEl(tagName, properties, attributes);
+        }
+
+        /**
+         * Localize a string given the string in english.
+         *
+         * If tokens are provided, it'll try and run a simple token replacement on the provided string.
+         * The tokens it looks for look like `{1}` with the index being 1-indexed into the tokens array.
+         *
+         * If a `defaultValue` is provided, it'll use that over `string`,
+         * if a value isn't found in provided language files.
+         * This is useful if you want to have a descriptive key for token replacement
+         * but have a succinct localized string and not require `en.json` to be included.
+         *
+         * Currently, it is used for the progress bar timing.
+         * ```js
+         * {
+         *   "progress bar timing: currentTime={1} duration={2}": "{1} of {2}"
+         * }
+         * ```
+         * It is then used like so:
+         * ```js
+         * this.localize('progress bar timing: currentTime={1} duration{2}',
+         *               [this.player_.currentTime(), this.player_.duration()],
+         *               '{1} of {2}');
+         * ```
+         *
+         * Which outputs something like: `01:23 of 24:56`.
+         *
+         *
+         * @param {string} string
+         *        The string to localize and the key to lookup in the language files.
+         * @param {string[]} [tokens]
+         *        If the current item has token replacements, provide the tokens here.
+         * @param {string} [defaultValue]
+         *        Defaults to `string`. Can be a default value to use for token replacement
+         *        if the lookup key is needed to be separate.
+         *
+         * @return {string}
+         *         The localized string or if no localization exists the english string.
+         */
+        localize(string, tokens, defaultValue = string) {
+            const code = this.player_.language && this.player_.language();
+            const languages = this.player_.languages && this.player_.languages();
+            const language = languages && languages[code];
+            const primaryCode = code && code.split('-')[0];
+            const primaryLang = languages && languages[primaryCode];
+            let localizedString = defaultValue;
+            if (language && language[string]) {
+                localizedString = language[string];
+            } else if (primaryLang && primaryLang[string]) {
+                localizedString = primaryLang[string];
+            }
+            if (tokens) {
+                localizedString = localizedString.replace(/\{(\d+)\}/g, function (match, index) {
+                    const value = tokens[index - 1];
+                    let ret = value;
+                    if (typeof value === 'undefined') {
+                        ret = match;
+                    }
+                    return ret;
+                });
+            }
+            return localizedString;
+        }
+
+        /**
+         * Handles language change for the player in components. Should be overridden by sub-components.
+         *
+         * @abstract
+         */
+        handleLanguagechange() {}
+
+        /**
+         * Return the `Component`s DOM element. This is where children get inserted.
+         * This will usually be the the same as the element returned in {@link Component#el}.
+         *
+         * @return {Element}
+         *         The content element for this `Component`.
+         */
+        contentEl() {
+            return this.contentEl_ || this.el_;
+        }
+
+        /**
+         * Get this `Component`s ID
+         *
+         * @return {string}
+         *         The id of this `Component`
+         */
+        id() {
+            return this.id_;
+        }
+
+        /**
+         * Get the `Component`s name. The name gets used to reference the `Component`
+         * and is set during registration.
+         *
+         * @return {string}
+         *         The name of this `Component`.
+         */
+        name() {
+            return this.name_;
+        }
+
+        /**
+         * Get an array of all child components
+         *
+         * @return {Array}
+         *         The children
+         */
+        children() {
+            return this.children_;
+        }
+
+        /**
+         * Returns the child `Component` with the given `id`.
+         *
+         * @param {string} id
+         *        The id of the child `Component` to get.
+         *
+         * @return {Component|undefined}
+         *         The child `Component` with the given `id` or undefined.
+         */
+        getChildById(id) {
+            return this.childIndex_[id];
+        }
+
+        /**
+         * Returns the child `Component` with the given `name`.
+         *
+         * @param {string} name
+         *        The name of the child `Component` to get.
+         *
+         * @return {Component|undefined}
+         *         The child `Component` with the given `name` or undefined.
+         */
+        getChild(name) {
+            if (!name) {
+                return;
+            }
+            return this.childNameIndex_[name];
+        }
+
+        /**
+         * Returns the descendant `Component` following the givent
+         * descendant `names`. For instance ['foo', 'bar', 'baz'] would
+         * try to get 'foo' on the current component, 'bar' on the 'foo'
+         * component and 'baz' on the 'bar' component and return undefined
+         * if any of those don't exist.
+         *
+         * @param {...string[]|...string} names
+         *        The name of the child `Component` to get.
+         *
+         * @return {Component|undefined}
+         *         The descendant `Component` following the given descendant
+         *         `names` or undefined.
+         */
+        getDescendant(...names) {
+            // flatten array argument into the main array
+            names = names.reduce((acc, n) => acc.concat(n), []);
+            let currentChild = this;
+            for (let i = 0; i < names.length; i++) {
+                currentChild = currentChild.getChild(names[i]);
+                if (!currentChild || !currentChild.getChild) {
+                    return;
+                }
+            }
+            return currentChild;
+        }
+
+        /**
+         * Add a child `Component` inside the current `Component`.
+         *
+         *
+         * @param {string|Component} child
+         *        The name or instance of a child to add.
+         *
+         * @param {Object} [options={}]
+         *        The key/value store of options that will get passed to children of
+         *        the child.
+         *
+         * @param {number} [index=this.children_.length]
+         *        The index to attempt to add a child into.
+         *
+         * @return {Component}
+         *         The `Component` that gets added as a child. When using a string the
+         *         `Component` will get created by this process.
+         */
+        addChild(child, options = {}, index = this.children_.length) {
+            let component;
+            let componentName;
+
+            // If child is a string, create component with options
+            if (typeof child === 'string') {
+                componentName = toTitleCase$1(child);
+                const componentClassName = options.componentClass || componentName;
+
+                // Set name through options
+                options.name = componentName;
+
+                // Create a new object & element for this controls set
+                // If there's no .player_, this is a player
+                const ComponentClass = Component$1.getComponent(componentClassName);
+                if (!ComponentClass) {
+                    throw new Error(`Component ${componentClassName} does not exist`);
+                }
+
+                // data stored directly on the videojs object may be
+                // misidentified as a component to retain
+                // backwards-compatibility with 4.x. check to make sure the
+                // component class can be instantiated.
+                if (typeof ComponentClass !== 'function') {
+                    return null;
+                }
+                component = new ComponentClass(this.player_ || this, options);
+
+                // child is a component instance
+            } else {
+                component = child;
+            }
+            if (component.parentComponent_) {
+                component.parentComponent_.removeChild(component);
+            }
+            this.children_.splice(index, 0, component);
+            component.parentComponent_ = this;
+            if (typeof component.id === 'function') {
+                this.childIndex_[component.id()] = component;
+            }
+
+            // If a name wasn't used to create the component, check if we can use the
+            // name function of the component
+            componentName = componentName || component.name && toTitleCase$1(component.name());
+            if (componentName) {
+                this.childNameIndex_[componentName] = component;
+                this.childNameIndex_[toLowerCase(componentName)] = component;
+            }
+
+            // Add the UI object's element to the container div (box)
+            // Having an element is not required
+            if (typeof component.el === 'function' && component.el()) {
+                // If inserting before a component, insert before that component's element
+                let refNode = null;
+                if (this.children_[index + 1]) {
+                    // Most children are components, but the video tech is an HTML element
+                    if (this.children_[index + 1].el_) {
+                        refNode = this.children_[index + 1].el_;
+                    } else if (isEl(this.children_[index + 1])) {
+                        refNode = this.children_[index + 1];
+                    }
+                }
+                this.contentEl().insertBefore(component.el(), refNode);
+            }
+
+            // Return so it can stored on parent object if desired.
+            return component;
+        }
+
+        /**
+         * Remove a child `Component` from this `Component`s list of children. Also removes
+         * the child `Component`s element from this `Component`s element.
+         *
+         * @param {Component} component
+         *        The child `Component` to remove.
+         */
+        removeChild(component) {
+            if (typeof component === 'string') {
+                component = this.getChild(component);
+            }
+            if (!component || !this.children_) {
+                return;
+            }
+            let childFound = false;
+            for (let i = this.children_.length - 1; i >= 0; i--) {
+                if (this.children_[i] === component) {
+                    childFound = true;
+                    this.children_.splice(i, 1);
+                    break;
+                }
+            }
+            if (!childFound) {
+                return;
+            }
+            component.parentComponent_ = null;
+            this.childIndex_[component.id()] = null;
+            this.childNameIndex_[toTitleCase$1(component.name())] = null;
+            this.childNameIndex_[toLowerCase(component.name())] = null;
+            const compEl = component.el();
+            if (compEl && compEl.parentNode === this.contentEl()) {
+                this.contentEl().removeChild(component.el());
+            }
+        }
+
+        /**
+         * Add and initialize default child `Component`s based upon options.
+         */
+        initChildren() {
+            const children = this.options_.children;
+            if (children) {
+                // `this` is `parent`
+                const parentOptions = this.options_;
+                const handleAdd = child => {
+                    const name = child.name;
+                    let opts = child.opts;
+
+                    // Allow options for children to be set at the parent options
+                    // e.g. videojs(id, { controlBar: false });
+                    // instead of videojs(id, { children: { controlBar: false });
+                    if (parentOptions[name] !== undefined) {
+                        opts = parentOptions[name];
+                    }
+
+                    // Allow for disabling default components
+                    // e.g. options['children']['posterImage'] = false
+                    if (opts === false) {
+                        return;
+                    }
+
+                    // Allow options to be passed as a simple boolean if no configuration
+                    // is necessary.
+                    if (opts === true) {
+                        opts = {};
+                    }
+
+                    // We also want to pass the original player options
+                    // to each component as well so they don't need to
+                    // reach back into the player for options later.
+                    opts.playerOptions = this.options_.playerOptions;
+
+                    // Create and add the child component.
+                    // Add a direct reference to the child by name on the parent instance.
+                    // If two of the same component are used, different names should be supplied
+                    // for each
+                    const newChild = this.addChild(name, opts);
+                    if (newChild) {
+                        this[name] = newChild;
+                    }
+                };
+
+                // Allow for an array of children details to passed in the options
+                let workingChildren;
+                const Tech = Component$1.getComponent('Tech');
+                if (Array.isArray(children)) {
+                    workingChildren = children;
+                } else {
+                    workingChildren = Object.keys(children);
+                }
+                workingChildren
+                    // children that are in this.options_ but also in workingChildren  would
+                    // give us extra children we do not want. So, we want to filter them out.
+                    .concat(Object.keys(this.options_).filter(function (child) {
+                        return !workingChildren.some(function (wchild) {
+                            if (typeof wchild === 'string') {
+                                return child === wchild;
+                            }
+                            return child === wchild.name;
+                        });
+                    })).map(child => {
+                    let name;
+                    let opts;
+                    if (typeof child === 'string') {
+                        name = child;
+                        opts = children[name] || this.options_[name] || {};
+                    } else {
+                        name = child.name;
+                        opts = child;
+                    }
+                    return {
+                        name,
+                        opts
+                    };
+                }).filter(child => {
+                    // we have to make sure that child.name isn't in the techOrder since
+                    // techs are registered as Components but can't aren't compatible
+                    // See https://github.com/videojs/video.js/issues/2772
+                    const c = Component$1.getComponent(child.opts.componentClass || toTitleCase$1(child.name));
+                    return c && !Tech.isTech(c);
+                }).forEach(handleAdd);
+            }
+        }
+
+        /**
+         * Builds the default DOM class name. Should be overridden by sub-components.
+         *
+         * @return {string}
+         *         The DOM class name for this object.
+         *
+         * @abstract
+         */
+        buildCSSClass() {
+            // Child classes can include a function that does:
+            // return 'CLASS NAME' + this._super();
+            return '';
+        }
+
+        /**
+         * Bind a listener to the component's ready state.
+         * Different from event listeners in that if the ready event has already happened
+         * it will trigger the function immediately.
+         *
+         * @param {ReadyCallback} fn
+         *        Function that gets called when the `Component` is ready.
+         *
+         * @return {Component}
+         *         Returns itself; method can be chained.
+         */
+        ready(fn, sync = false) {
+            if (!fn) {
+                return;
+            }
+            if (!this.isReady_) {
+                this.readyQueue_ = this.readyQueue_ || [];
+                this.readyQueue_.push(fn);
+                return;
+            }
+            if (sync) {
+                fn.call(this);
+            } else {
+                // Call the function asynchronously by default for consistency
+                this.setTimeout(fn, 1);
+            }
+        }
+
+        /**
+         * Trigger all the ready listeners for this `Component`.
+         *
+         * @fires Component#ready
+         */
+        triggerReady() {
+            this.isReady_ = true;
+
+            // Ensure ready is triggered asynchronously
+            this.setTimeout(function () {
+                const readyQueue = this.readyQueue_;
+
+                // Reset Ready Queue
+                this.readyQueue_ = [];
+                if (readyQueue && readyQueue.length > 0) {
+                    readyQueue.forEach(function (fn) {
+                        fn.call(this);
+                    }, this);
+                }
+
+                // Allow for using event listeners also
+                /**
+                 * Triggered when a `Component` is ready.
+                 *
+                 * @event Component#ready
+                 * @type {Event}
+                 */
+                this.trigger('ready');
+            }, 1);
+        }
+
+        /**
+         * Find a single DOM element matching a `selector`. This can be within the `Component`s
+         * `contentEl()` or another custom context.
+         *
+         * @param {string} selector
+         *        A valid CSS selector, which will be passed to `querySelector`.
+         *
+         * @param {Element|string} [context=this.contentEl()]
+         *        A DOM element within which to query. Can also be a selector string in
+         *        which case the first matching element will get used as context. If
+         *        missing `this.contentEl()` gets used. If  `this.contentEl()` returns
+         *        nothing it falls back to `document`.
+         *
+         * @return {Element|null}
+         *         the dom element that was found, or null
+         *
+         * @see [Information on CSS Selectors](https://developer.mozilla.org/en-US/docs/Web/Guide/CSS/Getting_Started/Selectors)
+         */
+        $(selector, context) {
+            return $(selector, context || this.contentEl());
+        }
+
+        /**
+         * Finds all DOM element matching a `selector`. This can be within the `Component`s
+         * `contentEl()` or another custom context.
+         *
+         * @param {string} selector
+         *        A valid CSS selector, which will be passed to `querySelectorAll`.
+         *
+         * @param {Element|string} [context=this.contentEl()]
+         *        A DOM element within which to query. Can also be a selector string in
+         *        which case the first matching element will get used as context. If
+         *        missing `this.contentEl()` gets used. If  `this.contentEl()` returns
+         *        nothing it falls back to `document`.
+         *
+         * @return {NodeList}
+         *         a list of dom elements that were found
+         *
+         * @see [Information on CSS Selectors](https://developer.mozilla.org/en-US/docs/Web/Guide/CSS/Getting_Started/Selectors)
+         */
+        $$(selector, context) {
+            return $$(selector, context || this.contentEl());
+        }
+
+        /**
+         * Check if a component's element has a CSS class name.
+         *
+         * @param {string} classToCheck
+         *        CSS class name to check.
+         *
+         * @return {boolean}
+         *         - True if the `Component` has the class.
+         *         - False if the `Component` does not have the class`
+         */
+        hasClass(classToCheck) {
+            return hasClass(this.el_, classToCheck);
+        }
+
+        /**
+         * Add a CSS class name to the `Component`s element.
+         *
+         * @param {...string} classesToAdd
+         *        One or more CSS class name to add.
+         */
+        addClass(...classesToAdd) {
+            addClass(this.el_, ...classesToAdd);
+        }
+
+        /**
+         * Remove a CSS class name from the `Component`s element.
+         *
+         * @param {...string} classesToRemove
+         *        One or more CSS class name to remove.
+         */
+        removeClass(...classesToRemove) {
+            removeClass(this.el_, ...classesToRemove);
+        }
+
+        /**
+         * Add or remove a CSS class name from the component's element.
+         * - `classToToggle` gets added when {@link Component#hasClass} would return false.
+         * - `classToToggle` gets removed when {@link Component#hasClass} would return true.
+         *
+         * @param  {string} classToToggle
+         *         The class to add or remove based on (@link Component#hasClass}
+         *
+         * @param  {boolean|Dom~predicate} [predicate]
+         *         An {@link Dom~predicate} function or a boolean
+         */
+        toggleClass(classToToggle, predicate) {
+            toggleClass(this.el_, classToToggle, predicate);
+        }
+
+        /**
+         * Show the `Component`s element if it is hidden by removing the
+         * 'vjs-hidden' class name from it.
+         */
+        show() {
+            this.removeClass('vjs-hidden');
+        }
+
+        /**
+         * Hide the `Component`s element if it is currently showing by adding the
+         * 'vjs-hidden` class name to it.
+         */
+        hide() {
+            this.addClass('vjs-hidden');
+        }
+
+        /**
+         * Lock a `Component`s element in its visible state by adding the 'vjs-lock-showing'
+         * class name to it. Used during fadeIn/fadeOut.
+         *
+         * @private
+         */
+        lockShowing() {
+            this.addClass('vjs-lock-showing');
+        }
+
+        /**
+         * Unlock a `Component`s element from its visible state by removing the 'vjs-lock-showing'
+         * class name from it. Used during fadeIn/fadeOut.
+         *
+         * @private
+         */
+        unlockShowing() {
+            this.removeClass('vjs-lock-showing');
+        }
+
+        /**
+         * Get the value of an attribute on the `Component`s element.
+         *
+         * @param {string} attribute
+         *        Name of the attribute to get the value from.
+         *
+         * @return {string|null}
+         *         - The value of the attribute that was asked for.
+         *         - Can be an empty string on some browsers if the attribute does not exist
+         *           or has no value
+         *         - Most browsers will return null if the attribute does not exist or has
+         *           no value.
+         *
+         * @see [DOM API]{@link https://developer.mozilla.org/en-US/docs/Web/API/Element/getAttribute}
+         */
+        getAttribute(attribute) {
+            return getAttribute(this.el_, attribute);
+        }
+
+        /**
+         * Set the value of an attribute on the `Component`'s element
+         *
+         * @param {string} attribute
+         *        Name of the attribute to set.
+         *
+         * @param {string} value
+         *        Value to set the attribute to.
+         *
+         * @see [DOM API]{@link https://developer.mozilla.org/en-US/docs/Web/API/Element/setAttribute}
+         */
+        setAttribute(attribute, value) {
+            setAttribute(this.el_, attribute, value);
+        }
+
+        /**
+         * Remove an attribute from the `Component`s element.
+         *
+         * @param {string} attribute
+         *        Name of the attribute to remove.
+         *
+         * @see [DOM API]{@link https://developer.mozilla.org/en-US/docs/Web/API/Element/removeAttribute}
+         */
+        removeAttribute(attribute) {
+            removeAttribute(this.el_, attribute);
+        }
+
+        /**
+         * Get or set the width of the component based upon the CSS styles.
+         * See {@link Component#dimension} for more detailed information.
+         *
+         * @param {number|string} [num]
+         *        The width that you want to set postfixed with '%', 'px' or nothing.
+         *
+         * @param {boolean} [skipListeners]
+         *        Skip the componentresize event trigger
+         *
+         * @return {number|string}
+         *         The width when getting, zero if there is no width. Can be a string
+         *           postpixed with '%' or 'px'.
+         */
+        width(num, skipListeners) {
+            return this.dimension('width', num, skipListeners);
+        }
+
+        /**
+         * Get or set the height of the component based upon the CSS styles.
+         * See {@link Component#dimension} for more detailed information.
+         *
+         * @param {number|string} [num]
+         *        The height that you want to set postfixed with '%', 'px' or nothing.
+         *
+         * @param {boolean} [skipListeners]
+         *        Skip the componentresize event trigger
+         *
+         * @return {number|string}
+         *         The width when getting, zero if there is no width. Can be a string
+         *         postpixed with '%' or 'px'.
+         */
+        height(num, skipListeners) {
+            return this.dimension('height', num, skipListeners);
+        }
+
+        /**
+         * Set both the width and height of the `Component` element at the same time.
+         *
+         * @param  {number|string} width
+         *         Width to set the `Component`s element to.
+         *
+         * @param  {number|string} height
+         *         Height to set the `Component`s element to.
+         */
+        dimensions(width, height) {
+            // Skip componentresize listeners on width for optimization
+            this.width(width, true);
+            this.height(height);
+        }
+
+        /**
+         * Get or set width or height of the `Component` element. This is the shared code
+         * for the {@link Component#width} and {@link Component#height}.
+         *
+         * Things to know:
+         * - If the width or height in an number this will return the number postfixed with 'px'.
+         * - If the width/height is a percent this will return the percent postfixed with '%'
+         * - Hidden elements have a width of 0 with `window.getComputedStyle`. This function
+         *   defaults to the `Component`s `style.width` and falls back to `window.getComputedStyle`.
+         *   See [this]{@link http://www.foliotek.com/devblog/getting-the-width-of-a-hidden-element-with-jquery-using-width/}
+         *   for more information
+         * - If you want the computed style of the component, use {@link Component#currentWidth}
+         *   and {@link {Component#currentHeight}
+         *
+         * @fires Component#componentresize
+         *
+         * @param {string} widthOrHeight
+         8        'width' or 'height'
+         *
+         * @param  {number|string} [num]
+         8         New dimension
+         *
+         * @param  {boolean} [skipListeners]
+         *         Skip componentresize event trigger
+         *
+         * @return {number}
+         *         The dimension when getting or 0 if unset
+         */
+        dimension(widthOrHeight, num, skipListeners) {
+            if (num !== undefined) {
+                // Set to zero if null or literally NaN (NaN !== NaN)
+                if (num === null || num !== num) {
+                    num = 0;
+                }
+
+                // Check if using css width/height (% or px) and adjust
+                if (('' + num).indexOf('%') !== -1 || ('' + num).indexOf('px') !== -1) {
+                    this.el_.style[widthOrHeight] = num;
+                } else if (num === 'auto') {
+                    this.el_.style[widthOrHeight] = '';
+                } else {
+                    this.el_.style[widthOrHeight] = num + 'px';
+                }
+
+                // skipListeners allows us to avoid triggering the resize event when setting both width and height
+                if (!skipListeners) {
+                    /**
+                     * Triggered when a component is resized.
+                     *
+                     * @event Component#componentresize
+                     * @type {Event}
+                     */
+                    this.trigger('componentresize');
+                }
+                return;
+            }
+
+            // Not setting a value, so getting it
+            // Make sure element exists
+            if (!this.el_) {
+                return 0;
+            }
+
+            // Get dimension value from style
+            const val = this.el_.style[widthOrHeight];
+            const pxIndex = val.indexOf('px');
+            if (pxIndex !== -1) {
+                // Return the pixel value with no 'px'
+                return parseInt(val.slice(0, pxIndex), 10);
+            }
+
+            // No px so using % or no style was set, so falling back to offsetWidth/height
+            // If component has display:none, offset will return 0
+            // TODO: handle display:none and no dimension style using px
+            return parseInt(this.el_['offset' + toTitleCase$1(widthOrHeight)], 10);
+        }
+
+        /**
+         * Get the computed width or the height of the component's element.
+         *
+         * Uses `window.getComputedStyle`.
+         *
+         * @param {string} widthOrHeight
+         *        A string containing 'width' or 'height'. Whichever one you want to get.
+         *
+         * @return {number}
+         *         The dimension that gets asked for or 0 if nothing was set
+         *         for that dimension.
+         */
+        currentDimension(widthOrHeight) {
+            let computedWidthOrHeight = 0;
+            if (widthOrHeight !== 'width' && widthOrHeight !== 'height') {
+                throw new Error('currentDimension only accepts width or height value');
+            }
+            computedWidthOrHeight = computedStyle(this.el_, widthOrHeight);
+
+            // remove 'px' from variable and parse as integer
+            computedWidthOrHeight = parseFloat(computedWidthOrHeight);
+
+            // if the computed value is still 0, it's possible that the browser is lying
+            // and we want to check the offset values.
+            // This code also runs wherever getComputedStyle doesn't exist.
+            if (computedWidthOrHeight === 0 || isNaN(computedWidthOrHeight)) {
+                const rule = `offset${toTitleCase$1(widthOrHeight)}`;
+                computedWidthOrHeight = this.el_[rule];
+            }
+            return computedWidthOrHeight;
+        }
+
+        /**
+         * An object that contains width and height values of the `Component`s
+         * computed style. Uses `window.getComputedStyle`.
+         *
+         * @typedef {Object} Component~DimensionObject
+         *
+         * @property {number} width
+         *           The width of the `Component`s computed style.
+         *
+         * @property {number} height
+         *           The height of the `Component`s computed style.
+         */
+
+        /**
+         * Get an object that contains computed width and height values of the
+         * component's element.
+         *
+         * Uses `window.getComputedStyle`.
+         *
+         * @return {Component~DimensionObject}
+         *         The computed dimensions of the component's element.
+         */
+        currentDimensions() {
+            return {
+                width: this.currentDimension('width'),
+                height: this.currentDimension('height')
+            };
+        }
+
+        /**
+         * Get the computed width of the component's element.
+         *
+         * Uses `window.getComputedStyle`.
+         *
+         * @return {number}
+         *         The computed width of the component's element.
+         */
+        currentWidth() {
+            return this.currentDimension('width');
+        }
+
+        /**
+         * Get the computed height of the component's element.
+         *
+         * Uses `window.getComputedStyle`.
+         *
+         * @return {number}
+         *         The computed height of the component's element.
+         */
+        currentHeight() {
+            return this.currentDimension('height');
+        }
+
+        /**
+         * Set the focus to this component
+         */
+        focus() {
+            this.el_.focus();
+        }
+
+        /**
+         * Remove the focus from this component
+         */
+        blur() {
+            this.el_.blur();
+        }
+
+        /**
+         * When this Component receives a `keydown` event which it does not process,
+         *  it passes the event to the Player for handling.
+         *
+         * @param {KeyboardEvent} event
+         *        The `keydown` event that caused this function to be called.
+         */
+        handleKeyDown(event) {
+            if (this.player_) {
+                // We only stop propagation here because we want unhandled events to fall
+                // back to the browser. Exclude Tab for focus trapping.
+                if (!keycode.isEventKey(event, 'Tab')) {
+                    event.stopPropagation();
+                }
+                this.player_.handleKeyDown(event);
+            }
+        }
+
+        /**
+         * Many components used to have a `handleKeyPress` method, which was poorly
+         * named because it listened to a `keydown` event. This method name now
+         * delegates to `handleKeyDown`. This means anyone calling `handleKeyPress`
+         * will not see their method calls stop working.
+         *
+         * @param {Event} event
+         *        The event that caused this function to be called.
+         */
+        handleKeyPress(event) {
+            this.handleKeyDown(event);
+        }
+
+        /**
+         * Emit a 'tap' events when touch event support gets detected. This gets used to
+         * support toggling the controls through a tap on the video. They get enabled
+         * because every sub-component would have extra overhead otherwise.
+         *
+         * @private
+         * @fires Component#tap
+         * @listens Component#touchstart
+         * @listens Component#touchmove
+         * @listens Component#touchleave
+         * @listens Component#touchcancel
+         * @listens Component#touchend
+         */
+        emitTapEvents() {
+            // Track the start time so we can determine how long the touch lasted
+            let touchStart = 0;
+            let firstTouch = null;
+
+            // Maximum movement allowed during a touch event to still be considered a tap
+            // Other popular libs use anywhere from 2 (hammer.js) to 15,
+            // so 10 seems like a nice, round number.
+            const tapMovementThreshold = 10;
+
+            // The maximum length a touch can be while still being considered a tap
+            const touchTimeThreshold = 200;
+            let couldBeTap;
+            this.on('touchstart', function (event) {
+                // If more than one finger, don't consider treating this as a click
+                if (event.touches.length === 1) {
+                    // Copy pageX/pageY from the object
+                    firstTouch = {
+                        pageX: event.touches[0].pageX,
+                        pageY: event.touches[0].pageY
+                    };
+                    // Record start time so we can detect a tap vs. "touch and hold"
+                    touchStart = window.performance.now();
+                    // Reset couldBeTap tracking
+                    couldBeTap = true;
+                }
+            });
+            this.on('touchmove', function (event) {
+                // If more than one finger, don't consider treating this as a click
+                if (event.touches.length > 1) {
+                    couldBeTap = false;
+                } else if (firstTouch) {
+                    // Some devices will throw touchmoves for all but the slightest of taps.
+                    // So, if we moved only a small distance, this could still be a tap
+                    const xdiff = event.touches[0].pageX - firstTouch.pageX;
+                    const ydiff = event.touches[0].pageY - firstTouch.pageY;
+                    const touchDistance = Math.sqrt(xdiff * xdiff + ydiff * ydiff);
+                    if (touchDistance > tapMovementThreshold) {
+                        couldBeTap = false;
+                    }
+                }
+            });
+            const noTap = function () {
+                couldBeTap = false;
+            };
+
+            // TODO: Listen to the original target. http://youtu.be/DujfpXOKUp8?t=13m8s
+            this.on('touchleave', noTap);
+            this.on('touchcancel', noTap);
+
+            // When the touch ends, measure how long it took and trigger the appropriate
+            // event
+            this.on('touchend', function (event) {
+                firstTouch = null;
+                // Proceed only if the touchmove/leave/cancel event didn't happen
+                if (couldBeTap === true) {
+                    // Measure how long the touch lasted
+                    const touchTime = window.performance.now() - touchStart;
+
+                    // Make sure the touch was less than the threshold to be considered a tap
+                    if (touchTime < touchTimeThreshold) {
+                        // Don't let browser turn this into a click
+                        event.preventDefault();
+                        /**
+                         * Triggered when a `Component` is tapped.
+                         *
+                         * @event Component#tap
+                         * @type {MouseEvent}
+                         */
+                        this.trigger('tap');
+                        // It may be good to copy the touchend event object and change the
+                        // type to tap, if the other event properties aren't exact after
+                        // Events.fixEvent runs (e.g. event.target)
+                    }
+                }
+            });
+        }
+
+        /**
+         * This function reports user activity whenever touch events happen. This can get
+         * turned off by any sub-components that wants touch events to act another way.
+         *
+         * Report user touch activity when touch events occur. User activity gets used to
+         * determine when controls should show/hide. It is simple when it comes to mouse
+         * events, because any mouse event should show the controls. So we capture mouse
+         * events that bubble up to the player and report activity when that happens.
+         * With touch events it isn't as easy as `touchstart` and `touchend` toggle player
+         * controls. So touch events can't help us at the player level either.
+         *
+         * User activity gets checked asynchronously. So what could happen is a tap event
+         * on the video turns the controls off. Then the `touchend` event bubbles up to
+         * the player. Which, if it reported user activity, would turn the controls right
+         * back on. We also don't want to completely block touch events from bubbling up.
+         * Furthermore a `touchmove` event and anything other than a tap, should not turn
+         * controls back on.
+         *
+         * @listens Component#touchstart
+         * @listens Component#touchmove
+         * @listens Component#touchend
+         * @listens Component#touchcancel
+         */
+        enableTouchActivity() {
+            // Don't continue if the root player doesn't support reporting user activity
+            if (!this.player() || !this.player().reportUserActivity) {
+                return;
+            }
+
+            // listener for reporting that the user is active
+            const report = bind_(this.player(), this.player().reportUserActivity);
+            let touchHolding;
+            this.on('touchstart', function () {
+                report();
+                // For as long as the they are touching the device or have their mouse down,
+                // we consider them active even if they're not moving their finger or mouse.
+                // So we want to continue to update that they are active
+                this.clearInterval(touchHolding);
+                // report at the same interval as activityCheck
+                touchHolding = this.setInterval(report, 250);
+            });
+            const touchEnd = function (event) {
+                report();
+                // stop the interval that maintains activity if the touch is holding
+                this.clearInterval(touchHolding);
+            };
+            this.on('touchmove', report);
+            this.on('touchend', touchEnd);
+            this.on('touchcancel', touchEnd);
+        }
+
+        /**
+         * A callback that has no parameters and is bound into `Component`s context.
+         *
+         * @callback Component~GenericCallback
+         * @this Component
+         */
+
+        /**
+         * Creates a function that runs after an `x` millisecond timeout. This function is a
+         * wrapper around `window.setTimeout`. There are a few reasons to use this one
+         * instead though:
+         * 1. It gets cleared via  {@link Component#clearTimeout} when
+         *    {@link Component#dispose} gets called.
+         * 2. The function callback will gets turned into a {@link Component~GenericCallback}
+         *
+         * > Note: You can't use `window.clearTimeout` on the id returned by this function. This
+         *         will cause its dispose listener not to get cleaned up! Please use
+         *         {@link Component#clearTimeout} or {@link Component#dispose} instead.
+         *
+         * @param {Component~GenericCallback} fn
+         *        The function that will be run after `timeout`.
+         *
+         * @param {number} timeout
+         *        Timeout in milliseconds to delay before executing the specified function.
+         *
+         * @return {number}
+         *         Returns a timeout ID that gets used to identify the timeout. It can also
+         *         get used in {@link Component#clearTimeout} to clear the timeout that
+         *         was set.
+         *
+         * @listens Component#dispose
+         * @see [Similar to]{@link https://developer.mozilla.org/en-US/docs/Web/API/WindowTimers/setTimeout}
+         */
+        setTimeout(fn, timeout) {
+            // declare as variables so they are properly available in timeout function
+            // eslint-disable-next-line
+            var timeoutId;
+            fn = bind_(this, fn);
+            this.clearTimersOnDispose_();
+            timeoutId = window.setTimeout(() => {
+                if (this.setTimeoutIds_.has(timeoutId)) {
+                    this.setTimeoutIds_.delete(timeoutId);
+                }
+                fn();
+            }, timeout);
+            this.setTimeoutIds_.add(timeoutId);
+            return timeoutId;
+        }
+
+        /**
+         * Clears a timeout that gets created via `window.setTimeout` or
+         * {@link Component#setTimeout}. If you set a timeout via {@link Component#setTimeout}
+         * use this function instead of `window.clearTimout`. If you don't your dispose
+         * listener will not get cleaned up until {@link Component#dispose}!
+         *
+         * @param {number} timeoutId
+         *        The id of the timeout to clear. The return value of
+         *        {@link Component#setTimeout} or `window.setTimeout`.
+         *
+         * @return {number}
+         *         Returns the timeout id that was cleared.
+         *
+         * @see [Similar to]{@link https://developer.mozilla.org/en-US/docs/Web/API/WindowTimers/clearTimeout}
+         */
+        clearTimeout(timeoutId) {
+            if (this.setTimeoutIds_.has(timeoutId)) {
+                this.setTimeoutIds_.delete(timeoutId);
+                window.clearTimeout(timeoutId);
+            }
+            return timeoutId;
+        }
+
+        /**
+         * Creates a function that gets run every `x` milliseconds. This function is a wrapper
+         * around `window.setInterval`. There are a few reasons to use this one instead though.
+         * 1. It gets cleared via  {@link Component#clearInterval} when
+         *    {@link Component#dispose} gets called.
+         * 2. The function callback will be a {@link Component~GenericCallback}
+         *
+         * @param {Component~GenericCallback} fn
+         *        The function to run every `x` seconds.
+         *
+         * @param {number} interval
+         *        Execute the specified function every `x` milliseconds.
+         *
+         * @return {number}
+         *         Returns an id that can be used to identify the interval. It can also be be used in
+         *         {@link Component#clearInterval} to clear the interval.
+         *
+         * @listens Component#dispose
+         * @see [Similar to]{@link https://developer.mozilla.org/en-US/docs/Web/API/WindowTimers/setInterval}
+         */
+        setInterval(fn, interval) {
+            fn = bind_(this, fn);
+            this.clearTimersOnDispose_();
+            const intervalId = window.setInterval(fn, interval);
+            this.setIntervalIds_.add(intervalId);
+            return intervalId;
+        }
+
+        /**
+         * Clears an interval that gets created via `window.setInterval` or
+         * {@link Component#setInterval}. If you set an interval via {@link Component#setInterval}
+         * use this function instead of `window.clearInterval`. If you don't your dispose
+         * listener will not get cleaned up until {@link Component#dispose}!
+         *
+         * @param {number} intervalId
+         *        The id of the interval to clear. The return value of
+         *        {@link Component#setInterval} or `window.setInterval`.
+         *
+         * @return {number}
+         *         Returns the interval id that was cleared.
+         *
+         * @see [Similar to]{@link https://developer.mozilla.org/en-US/docs/Web/API/WindowTimers/clearInterval}
+         */
+        clearInterval(intervalId) {
+            if (this.setIntervalIds_.has(intervalId)) {
+                this.setIntervalIds_.delete(intervalId);
+                window.clearInterval(intervalId);
+            }
+            return intervalId;
+        }
+
+        /**
+         * Queues up a callback to be passed to requestAnimationFrame (rAF), but
+         * with a few extra bonuses:
+         *
+         * - Supports browsers that do not support rAF by falling back to
+         *   {@link Component#setTimeout}.
+         *
+         * - The callback is turned into a {@link Component~GenericCallback} (i.e.
+         *   bound to the component).
+         *
+         * - Automatic cancellation of the rAF callback is handled if the component
+         *   is disposed before it is called.
+         *
+         * @param  {Component~GenericCallback} fn
+         *         A function that will be bound to this component and executed just
+         *         before the browser's next repaint.
+         *
+         * @return {number}
+         *         Returns an rAF ID that gets used to identify the timeout. It can
+         *         also be used in {@link Component#cancelAnimationFrame} to cancel
+         *         the animation frame callback.
+         *
+         * @listens Component#dispose
+         * @see [Similar to]{@link https://developer.mozilla.org/en-US/docs/Web/API/window/requestAnimationFrame}
+         */
+        requestAnimationFrame(fn) {
+            this.clearTimersOnDispose_();
+
+            // declare as variables so they are properly available in rAF function
+            // eslint-disable-next-line
+            var id;
+            fn = bind_(this, fn);
+            id = window.requestAnimationFrame(() => {
+                if (this.rafIds_.has(id)) {
+                    this.rafIds_.delete(id);
+                }
+                fn();
+            });
+            this.rafIds_.add(id);
+            return id;
+        }
+
+        /**
+         * Request an animation frame, but only one named animation
+         * frame will be queued. Another will never be added until
+         * the previous one finishes.
+         *
+         * @param {string} name
+         *        The name to give this requestAnimationFrame
+         *
+         * @param  {Component~GenericCallback} fn
+         *         A function that will be bound to this component and executed just
+         *         before the browser's next repaint.
+         */
+        requestNamedAnimationFrame(name, fn) {
+            if (this.namedRafs_.has(name)) {
+                return;
+            }
+            this.clearTimersOnDispose_();
+            fn = bind_(this, fn);
+            const id = this.requestAnimationFrame(() => {
+                fn();
+                if (this.namedRafs_.has(name)) {
+                    this.namedRafs_.delete(name);
+                }
+            });
+            this.namedRafs_.set(name, id);
+            return name;
+        }
+
+        /**
+         * Cancels a current named animation frame if it exists.
+         *
+         * @param {string} name
+         *        The name of the requestAnimationFrame to cancel.
+         */
+        cancelNamedAnimationFrame(name) {
+            if (!this.namedRafs_.has(name)) {
+                return;
+            }
+            this.cancelAnimationFrame(this.namedRafs_.get(name));
+            this.namedRafs_.delete(name);
+        }
+
+        /**
+         * Cancels a queued callback passed to {@link Component#requestAnimationFrame}
+         * (rAF).
+         *
+         * If you queue an rAF callback via {@link Component#requestAnimationFrame},
+         * use this function instead of `window.cancelAnimationFrame`. If you don't,
+         * your dispose listener will not get cleaned up until {@link Component#dispose}!
+         *
+         * @param {number} id
+         *        The rAF ID to clear. The return value of {@link Component#requestAnimationFrame}.
+         *
+         * @return {number}
+         *         Returns the rAF ID that was cleared.
+         *
+         * @see [Similar to]{@link https://developer.mozilla.org/en-US/docs/Web/API/window/cancelAnimationFrame}
+         */
+        cancelAnimationFrame(id) {
+            if (this.rafIds_.has(id)) {
+                this.rafIds_.delete(id);
+                window.cancelAnimationFrame(id);
+            }
+            return id;
+        }
+
+        /**
+         * A function to setup `requestAnimationFrame`, `setTimeout`,
+         * and `setInterval`, clearing on dispose.
+         *
+         * > Previously each timer added and removed dispose listeners on it's own.
+         * For better performance it was decided to batch them all, and use `Set`s
+         * to track outstanding timer ids.
+         *
+         * @private
+         */
+        clearTimersOnDispose_() {
+            if (this.clearingTimersOnDispose_) {
+                return;
+            }
+            this.clearingTimersOnDispose_ = true;
+            this.one('dispose', () => {
+                [['namedRafs_', 'cancelNamedAnimationFrame'], ['rafIds_', 'cancelAnimationFrame'], ['setTimeoutIds_', 'clearTimeout'], ['setIntervalIds_', 'clearInterval']].forEach(([idName, cancelName]) => {
+                    // for a `Set` key will actually be the value again
+                    // so forEach((val, val) =>` but for maps we want to use
+                    // the key.
+                    this[idName].forEach((val, key) => this[cancelName](key));
+                });
+                this.clearingTimersOnDispose_ = false;
+            });
+        }
+
+        /**
+         * Register a `Component` with `videojs` given the name and the component.
+         *
+         * > NOTE: {@link Tech}s should not be registered as a `Component`. {@link Tech}s
+         *         should be registered using {@link Tech.registerTech} or
+         *         {@link videojs:videojs.registerTech}.
+         *
+         * > NOTE: This function can also be seen on videojs as
+         *         {@link videojs:videojs.registerComponent}.
+         *
+         * @param {string} name
+         *        The name of the `Component` to register.
+         *
+         * @param {Component} ComponentToRegister
+         *        The `Component` class to register.
+         *
+         * @return {Component}
+         *         The `Component` that was registered.
+         */
+        static registerComponent(name, ComponentToRegister) {
+            if (typeof name !== 'string' || !name) {
+                throw new Error(`Illegal component name, "${name}"; must be a non-empty string.`);
+            }
+            const Tech = Component$1.getComponent('Tech');
+
+            // We need to make sure this check is only done if Tech has been registered.
+            const isTech = Tech && Tech.isTech(ComponentToRegister);
+            const isComp = Component$1 === ComponentToRegister || Component$1.prototype.isPrototypeOf(ComponentToRegister.prototype);
+            if (isTech || !isComp) {
+                let reason;
+                if (isTech) {
+                    reason = 'techs must be registered using Tech.registerTech()';
+                } else {
+                    reason = 'must be a Component subclass';
+                }
+                throw new Error(`Illegal component, "${name}"; ${reason}.`);
+            }
+            name = toTitleCase$1(name);
+            if (!Component$1.components_) {
+                Component$1.components_ = {};
+            }
+            const Player = Component$1.getComponent('Player');
+            if (name === 'Player' && Player && Player.players) {
+                const players = Player.players;
+                const playerNames = Object.keys(players);
+
+                // If we have players that were disposed, then their name will still be
+                // in Players.players. So, we must loop through and verify that the value
+                // for each item is not null. This allows registration of the Player component
+                // after all players have been disposed or before any were created.
+                if (players && playerNames.length > 0 && playerNames.map(pname => players[pname]).every(Boolean)) {
+                    throw new Error('Can not register Player component after player has been created.');
+                }
+            }
+            Component$1.components_[name] = ComponentToRegister;
+            Component$1.components_[toLowerCase(name)] = ComponentToRegister;
+            return ComponentToRegister;
+        }
+
+        /**
+         * Get a `Component` based on the name it was registered with.
+         *
+         * @param {string} name
+         *        The Name of the component to get.
+         *
+         * @return {Component}
+         *         The `Component` that got registered under the given name.
+         */
+        static getComponent(name) {
+            if (!name || !Component$1.components_) {
+                return;
+            }
+            return Component$1.components_[name];
+        }
+    }
+    Component$1.registerComponent('Component', Component$1);
+
+    /**
+     * @file time.js
+     * @module time
+     */
+
+    /**
+     * Returns the time for the specified index at the start or end
+     * of a TimeRange object.
+     *
+     * @typedef    {Function} TimeRangeIndex
+     *
+     * @param      {number} [index=0]
+     *             The range number to return the time for.
+     *
+     * @return     {number}
+     *             The time offset at the specified index.
+     *
+     * @deprecated The index argument must be provided.
+     *             In the future, leaving it out will throw an error.
+     */
+
+    /**
+     * An object that contains ranges of time, which mimics {@link TimeRanges}.
+     *
+     * @typedef  {Object} TimeRange
+     *
+     * @property {number} length
+     *           The number of time ranges represented by this object.
+     *
+     * @property {module:time~TimeRangeIndex} start
+     *           Returns the time offset at which a specified time range begins.
+     *
+     * @property {module:time~TimeRangeIndex} end
+     *           Returns the time offset at which a specified time range ends.
+     *
+     * @see https://developer.mozilla.org/en-US/docs/Web/API/TimeRanges
+     */
+
+    /**
+     * Check if any of the time ranges are over the maximum index.
+     *
+     * @private
+     * @param   {string} fnName
+     *          The function name to use for logging
+     *
+     * @param   {number} index
+     *          The index to check
+     *
+     * @param   {number} maxIndex
+     *          The maximum possible index
+     *
+     * @throws  {Error} if the timeRanges provided are over the maxIndex
+     */
+    function rangeCheck(fnName, index, maxIndex) {
+        if (typeof index !== 'number' || index < 0 || index > maxIndex) {
+            throw new Error(`Failed to execute '${fnName}' on 'TimeRanges': The index provided (${index}) is non-numeric or out of bounds (0-${maxIndex}).`);
+        }
+    }
+
+    /**
+     * Get the time for the specified index at the start or end
+     * of a TimeRange object.
+     *
+     * @private
+     * @param      {string} fnName
+     *             The function name to use for logging
+     *
+     * @param      {string} valueIndex
+     *             The property that should be used to get the time. should be
+     *             'start' or 'end'
+     *
+     * @param      {Array} ranges
+     *             An array of time ranges
+     *
+     * @param      {Array} [rangeIndex=0]
+     *             The index to start the search at
+     *
+     * @return     {number}
+     *             The time that offset at the specified index.
+     *
+     * @deprecated rangeIndex must be set to a value, in the future this will throw an error.
+     * @throws     {Error} if rangeIndex is more than the length of ranges
+     */
+    function getRange(fnName, valueIndex, ranges, rangeIndex) {
+        rangeCheck(fnName, rangeIndex, ranges.length - 1);
+        return ranges[rangeIndex][valueIndex];
+    }
+
+    /**
+     * Create a time range object given ranges of time.
+     *
+     * @private
+     * @param   {Array} [ranges]
+     *          An array of time ranges.
+     *
+     * @return  {TimeRange}
+     */
+    function createTimeRangesObj(ranges) {
+        let timeRangesObj;
+        if (ranges === undefined || ranges.length === 0) {
+            timeRangesObj = {
+                length: 0,
+                start() {
+                    throw new Error('This TimeRanges object is empty');
+                },
+                end() {
+                    throw new Error('This TimeRanges object is empty');
+                }
+            };
+        } else {
+            timeRangesObj = {
+                length: ranges.length,
+                start: getRange.bind(null, 'start', 0, ranges),
+                end: getRange.bind(null, 'end', 1, ranges)
+            };
+        }
+        if (window.Symbol && window.Symbol.iterator) {
+            timeRangesObj[window.Symbol.iterator] = () => (ranges || []).values();
+        }
+        return timeRangesObj;
+    }
+
+    /**
+     * Create a `TimeRange` object which mimics an
+     * {@link https://developer.mozilla.org/en-US/docs/Web/API/TimeRanges|HTML5 TimeRanges instance}.
+     *
+     * @param {number|Array[]} start
+     *        The start of a single range (a number) or an array of ranges (an
+     *        array of arrays of two numbers each).
+     *
+     * @param {number} end
+     *        The end of a single range. Cannot be used with the array form of
+     *        the `start` argument.
+     *
+     * @return {TimeRange}
+     */
+    function createTimeRanges$1(start, end) {
+        if (Array.isArray(start)) {
+            return createTimeRangesObj(start);
+        } else if (start === undefined || end === undefined) {
+            return createTimeRangesObj();
+        }
+        return createTimeRangesObj([[start, end]]);
+    }
+
+    /**
+     * Format seconds as a time string, H:MM:SS or M:SS. Supplying a guide (in
+     * seconds) will force a number of leading zeros to cover the length of the
+     * guide.
+     *
+     * @private
+     * @param  {number} seconds
+     *         Number of seconds to be turned into a string
+     *
+     * @param  {number} guide
+     *         Number (in seconds) to model the string after
+     *
+     * @return {string}
+     *         Time formatted as H:MM:SS or M:SS
+     */
+    const defaultImplementation = function (seconds, guide) {
+        seconds = seconds < 0 ? 0 : seconds;
+        let s = Math.floor(seconds % 60);
+        let m = Math.floor(seconds / 60 % 60);
+        let h = Math.floor(seconds / 3600);
+        const gm = Math.floor(guide / 60 % 60);
+        const gh = Math.floor(guide / 3600);
+
+        // handle invalid times
+        if (isNaN(seconds) || seconds === Infinity) {
+            // '-' is false for all relational operators (e.g. <, >=) so this setting
+            // will add the minimum number of fields specified by the guide
+            h = m = s = '-';
+        }
+
+        // Check if we need to show hours
+        h = h > 0 || gh > 0 ? h + ':' : '';
+
+        // If hours are showing, we may need to add a leading zero.
+        // Always show at least one digit of minutes.
+        m = ((h || gm >= 10) && m < 10 ? '0' + m : m) + ':';
+
+        // Check if leading zero is need for seconds
+        s = s < 10 ? '0' + s : s;
+        return h + m + s;
+    };
+
+    // Internal pointer to the current implementation.
+    let implementation = defaultImplementation;
+
+    /**
+     * Replaces the default formatTime implementation with a custom implementation.
+     *
+     * @param {Function} customImplementation
+     *        A function which will be used in place of the default formatTime
+     *        implementation. Will receive the current time in seconds and the
+     *        guide (in seconds) as arguments.
+     */
+    function setFormatTime(customImplementation) {
+        implementation = customImplementation;
+    }
+
+    /**
+     * Resets formatTime to the default implementation.
+     */
+    function resetFormatTime() {
+        implementation = defaultImplementation;
+    }
+
+    /**
+     * Delegates to either the default time formatting function or a custom
+     * function supplied via `setFormatTime`.
+     *
+     * Formats seconds as a time string (H:MM:SS or M:SS). Supplying a
+     * guide (in seconds) will force a number of leading zeros to cover the
+     * length of the guide.
+     *
+     * @example  formatTime(125, 600) === "02:05"
+     * @param    {number} seconds
+     *           Number of seconds to be turned into a string
+     *
+     * @param    {number} guide
+     *           Number (in seconds) to model the string after
+     *
+     * @return   {string}
+     *           Time formatted as H:MM:SS or M:SS
+     */
+    function formatTime(seconds, guide = seconds) {
+        return implementation(seconds, guide);
+    }
+
+    var Time = /*#__PURE__*/Object.freeze({
+        __proto__: null,
+        createTimeRanges: createTimeRanges$1,
+        createTimeRange: createTimeRanges$1,
+        setFormatTime: setFormatTime,
+        resetFormatTime: resetFormatTime,
+        formatTime: formatTime
+    });
+
+    /**
+     * @file buffer.js
+     * @module buffer
+     */
+
+    /**
+     * Compute the percentage of the media that has been buffered.
+     *
+     * @param { import('./time').TimeRange } buffered
+     *        The current `TimeRanges` object representing buffered time ranges
+     *
+     * @param {number} duration
+     *        Total duration of the media
+     *
+     * @return {number}
+     *         Percent buffered of the total duration in decimal form.
+     */
+    function bufferedPercent(buffered, duration) {
+        let bufferedDuration = 0;
+        let start;
+        let end;
+        if (!duration) {
+            return 0;
+        }
+        if (!buffered || !buffered.length) {
+            buffered = createTimeRanges$1(0, 0);
+        }
+        for (let i = 0; i < buffered.length; i++) {
+            start = buffered.start(i);
+            end = buffered.end(i);
+
+            // buffered end can be bigger than duration by a very small fraction
+            if (end > duration) {
+                end = duration;
+            }
+            bufferedDuration += end - start;
+        }
+        return bufferedDuration / duration;
+    }
+
+    /**
+     * @file media-error.js
+     */
+
+    /**
+     * A Custom `MediaError` class which mimics the standard HTML5 `MediaError` class.
+     *
+     * @param {number|string|Object|MediaError} value
+     *        This can be of multiple types:
+     *        - number: should be a standard error code
+     *        - string: an error message (the code will be 0)
+     *        - Object: arbitrary properties
+     *        - `MediaError` (native): used to populate a video.js `MediaError` object
+     *        - `MediaError` (video.js): will return itself if it's already a
+     *          video.js `MediaError` object.
+     *
+     * @see [MediaError Spec]{@link https://dev.w3.org/html5/spec-author-view/video.html#mediaerror}
+     * @see [Encrypted MediaError Spec]{@link https://www.w3.org/TR/2013/WD-encrypted-media-20130510/#error-codes}
+     *
+     * @class MediaError
+     */
+    function MediaError(value) {
+        // Allow redundant calls to this constructor to avoid having `instanceof`
+        // checks peppered around the code.
+        if (value instanceof MediaError) {
+            return value;
+        }
+        if (typeof value === 'number') {
+            this.code = value;
+        } else if (typeof value === 'string') {
+            // default code is zero, so this is a custom error
+            this.message = value;
+        } else if (isObject$1(value)) {
+            // We assign the `code` property manually because native `MediaError` objects
+            // do not expose it as an own/enumerable property of the object.
+            if (typeof value.code === 'number') {
+                this.code = value.code;
+            }
+            Object.assign(this, value);
+        }
+        if (!this.message) {
+            this.message = MediaError.defaultMessages[this.code] || '';
+        }
+    }
+
+    /**
+     * The error code that refers two one of the defined `MediaError` types
+     *
+     * @type {Number}
+     */
+    MediaError.prototype.code = 0;
+
+    /**
+     * An optional message that to show with the error. Message is not part of the HTML5
+     * video spec but allows for more informative custom errors.
+     *
+     * @type {String}
+     */
+    MediaError.prototype.message = '';
+
+    /**
+     * An optional status code that can be set by plugins to allow even more detail about
+     * the error. For example a plugin might provide a specific HTTP status code and an
+     * error message for that code. Then when the plugin gets that error this class will
+     * know how to display an error message for it. This allows a custom message to show
+     * up on the `Player` error overlay.
+     *
+     * @type {Array}
+     */
+    MediaError.prototype.status = null;
+
+    /**
+     * Errors indexed by the W3C standard. The order **CANNOT CHANGE**! See the
+     * specification listed under {@link MediaError} for more information.
+     *
+     * @enum {array}
+     * @readonly
+     * @property {string} 0 - MEDIA_ERR_CUSTOM
+     * @property {string} 1 - MEDIA_ERR_ABORTED
+     * @property {string} 2 - MEDIA_ERR_NETWORK
+     * @property {string} 3 - MEDIA_ERR_DECODE
+     * @property {string} 4 - MEDIA_ERR_SRC_NOT_SUPPORTED
+     * @property {string} 5 - MEDIA_ERR_ENCRYPTED
+     */
+    MediaError.errorTypes = ['MEDIA_ERR_CUSTOM', 'MEDIA_ERR_ABORTED', 'MEDIA_ERR_NETWORK', 'MEDIA_ERR_DECODE', 'MEDIA_ERR_SRC_NOT_SUPPORTED', 'MEDIA_ERR_ENCRYPTED'];
+
+    /**
+     * The default `MediaError` messages based on the {@link MediaError.errorTypes}.
+     *
+     * @type {Array}
+     * @constant
+     */
+    MediaError.defaultMessages = {
+        1: 'You aborted the media playback',
+        2: 'A network error caused the media download to fail part-way.',
+        3: 'The media playback was aborted due to a corruption problem or because the media used features your browser did not support.',
+        4: 'The media could not be loaded, either because the server or network failed or because the format is not supported.',
+        5: 'The media is encrypted and we do not have the keys to decrypt it.'
+    };
+
+    // Add types as properties on MediaError
+    // e.g. MediaError.MEDIA_ERR_SRC_NOT_SUPPORTED = 4;
+    for (let errNum = 0; errNum < MediaError.errorTypes.length; errNum++) {
+        MediaError[MediaError.errorTypes[errNum]] = errNum;
+        // values should be accessible on both the class and instance
+        MediaError.prototype[MediaError.errorTypes[errNum]] = errNum;
+    }
+
+    var tuple = SafeParseTuple;
+    function SafeParseTuple(obj, reviver) {
+        var json;
+        var error = null;
+        try {
+            json = JSON.parse(obj, reviver);
+        } catch (err) {
+            error = err;
+        }
+        return [error, json];
+    }
+
+    /**
+     * Returns whether an object is `Promise`-like (i.e. has a `then` method).
+     *
+     * @param  {Object}  value
+     *         An object that may or may not be `Promise`-like.
+     *
+     * @return {boolean}
+     *         Whether or not the object is `Promise`-like.
+     */
+    function isPromise(value) {
+        return value !== undefined && value !== null && typeof value.then === 'function';
+    }
+
+    /**
+     * Silence a Promise-like object.
+     *
+     * This is useful for avoiding non-harmful, but potentially confusing "uncaught
+     * play promise" rejection error messages.
+     *
+     * @param  {Object} value
+     *         An object that may or may not be `Promise`-like.
+     */
+    function silencePromise(value) {
+        if (isPromise(value)) {
+            value.then(null, e => {});
+        }
+    }
+
+    /**
+     * @file text-track-list-converter.js Utilities for capturing text track state and
+     * re-creating tracks based on a capture.
+     *
+     * @module text-track-list-converter
+     */
+
+    /**
+     * Examine a single {@link TextTrack} and return a JSON-compatible javascript object that
+     * represents the {@link TextTrack}'s state.
+     *
+     * @param {TextTrack} track
+     *        The text track to query.
+     *
+     * @return {Object}
+     *         A serializable javascript representation of the TextTrack.
+     * @private
+     */
+    const trackToJson_ = function (track) {
+        const ret = ['kind', 'label', 'language', 'id', 'inBandMetadataTrackDispatchType', 'mode', 'src'].reduce((acc, prop, i) => {
+            if (track[prop]) {
+                acc[prop] = track[prop];
+            }
+            return acc;
+        }, {
+            cues: track.cues && Array.prototype.map.call(track.cues, function (cue) {
+                return {
+                    startTime: cue.startTime,
+                    endTime: cue.endTime,
+                    text: cue.text,
+                    id: cue.id
+                };
+            })
+        });
+        return ret;
+    };
+
+    /**
+     * Examine a {@link Tech} and return a JSON-compatible javascript array that represents the
+     * state of all {@link TextTrack}s currently configured. The return array is compatible with
+     * {@link text-track-list-converter:jsonToTextTracks}.
+     *
+     * @param { import('../tech/tech').default } tech
+     *        The tech object to query
+     *
+     * @return {Array}
+     *         A serializable javascript representation of the {@link Tech}s
+     *         {@link TextTrackList}.
+     */
+    const textTracksToJson = function (tech) {
+        const trackEls = tech.$$('track');
+        const trackObjs = Array.prototype.map.call(trackEls, t => t.track);
+        const tracks = Array.prototype.map.call(trackEls, function (trackEl) {
+            const json = trackToJson_(trackEl.track);
+            if (trackEl.src) {
+                json.src = trackEl.src;
+            }
+            return json;
+        });
+        return tracks.concat(Array.prototype.filter.call(tech.textTracks(), function (track) {
+            return trackObjs.indexOf(track) === -1;
+        }).map(trackToJson_));
+    };
+
+    /**
+     * Create a set of remote {@link TextTrack}s on a {@link Tech} based on an array of javascript
+     * object {@link TextTrack} representations.
+     *
+     * @param {Array} json
+     *        An array of `TextTrack` representation objects, like those that would be
+     *        produced by `textTracksToJson`.
+     *
+     * @param {Tech} tech
+     *        The `Tech` to create the `TextTrack`s on.
+     */
+    const jsonToTextTracks = function (json, tech) {
+        json.forEach(function (track) {
+            const addedTrack = tech.addRemoteTextTrack(track).track;
+            if (!track.src && track.cues) {
+                track.cues.forEach(cue => addedTrack.addCue(cue));
+            }
+        });
+        return tech.textTracks();
+    };
+    var textTrackConverter = {
+        textTracksToJson,
+        jsonToTextTracks,
+        trackToJson_
+    };
+
+    /**
+     * @file modal-dialog.js
+     */
+    const MODAL_CLASS_NAME = 'vjs-modal-dialog';
+
+    /**
+     * The `ModalDialog` displays over the video and its controls, which blocks
+     * interaction with the player until it is closed.
+     *
+     * Modal dialogs include a "Close" button and will close when that button
+     * is activated - or when ESC is pressed anywhere.
+     *
+     * @extends Component
+     */
+    class ModalDialog extends Component$1 {
+        /**
+         * Create an instance of this class.
+         *
+         * @param { import('./player').default } player
+         *        The `Player` that this class should be attached to.
+         *
+         * @param {Object} [options]
+         *        The key/value store of player options.
+         *
+         * @param { import('./utils/dom').ContentDescriptor} [options.content=undefined]
+         *        Provide customized content for this modal.
+         *
+         * @param {string} [options.description]
+         *        A text description for the modal, primarily for accessibility.
+         *
+         * @param {boolean} [options.fillAlways=false]
+         *        Normally, modals are automatically filled only the first time
+         *        they open. This tells the modal to refresh its content
+         *        every time it opens.
+         *
+         * @param {string} [options.label]
+         *        A text label for the modal, primarily for accessibility.
+         *
+         * @param {boolean} [options.pauseOnOpen=true]
+         *        If `true`, playback will will be paused if playing when
+         *        the modal opens, and resumed when it closes.
+         *
+         * @param {boolean} [options.temporary=true]
+         *        If `true`, the modal can only be opened once; it will be
+         *        disposed as soon as it's closed.
+         *
+         * @param {boolean} [options.uncloseable=false]
+         *        If `true`, the user will not be able to close the modal
+         *        through the UI in the normal ways. Programmatic closing is
+         *        still possible.
+         */
+        constructor(player, options) {
+            super(player, options);
+            this.handleKeyDown_ = e => this.handleKeyDown(e);
+            this.close_ = e => this.close(e);
+            this.opened_ = this.hasBeenOpened_ = this.hasBeenFilled_ = false;
+            this.closeable(!this.options_.uncloseable);
+            this.content(this.options_.content);
+
+            // Make sure the contentEl is defined AFTER any children are initialized
+            // because we only want the contents of the modal in the contentEl
+            // (not the UI elements like the close button).
+            this.contentEl_ = createEl('div', {
+                className: `${MODAL_CLASS_NAME}-content`
+            }, {
+                role: 'document'
+            });
+            this.descEl_ = createEl('p', {
+                className: `${MODAL_CLASS_NAME}-description vjs-control-text`,
+                id: this.el().getAttribute('aria-describedby')
+            });
+            textContent(this.descEl_, this.description());
+            this.el_.appendChild(this.descEl_);
+            this.el_.appendChild(this.contentEl_);
+        }
+
+        /**
+         * Create the `ModalDialog`'s DOM element
+         *
+         * @return {Element}
+         *         The DOM element that gets created.
+         */
+        createEl() {
+            return super.createEl('div', {
+                className: this.buildCSSClass(),
+                tabIndex: -1
+            }, {
+                'aria-describedby': `${this.id()}_description`,
+                'aria-hidden': 'true',
+                'aria-label': this.label(),
+                'role': 'dialog'
+            });
+        }
+        dispose() {
+            this.contentEl_ = null;
+            this.descEl_ = null;
+            this.previouslyActiveEl_ = null;
+            super.dispose();
+        }
+
+        /**
+         * Builds the default DOM `className`.
+         *
+         * @return {string}
+         *         The DOM `className` for this object.
+         */
+        buildCSSClass() {
+            return `${MODAL_CLASS_NAME} vjs-hidden ${super.buildCSSClass()}`;
+        }
+
+        /**
+         * Returns the label string for this modal. Primarily used for accessibility.
+         *
+         * @return {string}
+         *         the localized or raw label of this modal.
+         */
+        label() {
+            return this.localize(this.options_.label || 'Modal Window');
+        }
+
+        /**
+         * Returns the description string for this modal. Primarily used for
+         * accessibility.
+         *
+         * @return {string}
+         *         The localized or raw description of this modal.
+         */
+        description() {
+            let desc = this.options_.description || this.localize('This is a modal window.');
+
+            // Append a universal closeability message if the modal is closeable.
+            if (this.closeable()) {
+                desc += ' ' + this.localize('This modal can be closed by pressing the Escape key or activating the close button.');
+            }
+            return desc;
+        }
+
+        /**
+         * Opens the modal.
+         *
+         * @fires ModalDialog#beforemodalopen
+         * @fires ModalDialog#modalopen
+         */
+        open() {
+            if (!this.opened_) {
+                const player = this.player();
+
+                /**
+                 * Fired just before a `ModalDialog` is opened.
+                 *
+                 * @event ModalDialog#beforemodalopen
+                 * @type {Event}
+                 */
+                this.trigger('beforemodalopen');
+                this.opened_ = true;
+
+                // Fill content if the modal has never opened before and
+                // never been filled.
+                if (this.options_.fillAlways || !this.hasBeenOpened_ && !this.hasBeenFilled_) {
+                    this.fill();
+                }
+
+                // If the player was playing, pause it and take note of its previously
+                // playing state.
+                this.wasPlaying_ = !player.paused();
+                if (this.options_.pauseOnOpen && this.wasPlaying_) {
+                    player.pause();
+                }
+                this.on('keydown', this.handleKeyDown_);
+
+                // Hide controls and note if they were enabled.
+                this.hadControls_ = player.controls();
+                player.controls(false);
+                this.show();
+                this.conditionalFocus_();
+                this.el().setAttribute('aria-hidden', 'false');
+
+                /**
+                 * Fired just after a `ModalDialog` is opened.
+                 *
+                 * @event ModalDialog#modalopen
+                 * @type {Event}
+                 */
+                this.trigger('modalopen');
+                this.hasBeenOpened_ = true;
+            }
+        }
+
+        /**
+         * If the `ModalDialog` is currently open or closed.
+         *
+         * @param  {boolean} [value]
+         *         If given, it will open (`true`) or close (`false`) the modal.
+         *
+         * @return {boolean}
+         *         the current open state of the modaldialog
+         */
+        opened(value) {
+            if (typeof value === 'boolean') {
+                this[value ? 'open' : 'close']();
+            }
+            return this.opened_;
+        }
+
+        /**
+         * Closes the modal, does nothing if the `ModalDialog` is
+         * not open.
+         *
+         * @fires ModalDialog#beforemodalclose
+         * @fires ModalDialog#modalclose
+         */
+        close() {
+            if (!this.opened_) {
+                return;
+            }
+            const player = this.player();
+
+            /**
+             * Fired just before a `ModalDialog` is closed.
+             *
+             * @event ModalDialog#beforemodalclose
+             * @type {Event}
+             */
+            this.trigger('beforemodalclose');
+            this.opened_ = false;
+            if (this.wasPlaying_ && this.options_.pauseOnOpen) {
+                player.play();
+            }
+            this.off('keydown', this.handleKeyDown_);
+            if (this.hadControls_) {
+                player.controls(true);
+            }
+            this.hide();
+            this.el().setAttribute('aria-hidden', 'true');
+
+            /**
+             * Fired just after a `ModalDialog` is closed.
+             *
+             * @event ModalDialog#modalclose
+             * @type {Event}
+             */
+            this.trigger('modalclose');
+            this.conditionalBlur_();
+            if (this.options_.temporary) {
+                this.dispose();
+            }
+        }
+
+        /**
+         * Check to see if the `ModalDialog` is closeable via the UI.
+         *
+         * @param  {boolean} [value]
+         *         If given as a boolean, it will set the `closeable` option.
+         *
+         * @return {boolean}
+         *         Returns the final value of the closable option.
+         */
+        closeable(value) {
+            if (typeof value === 'boolean') {
+                const closeable = this.closeable_ = !!value;
+                let close = this.getChild('closeButton');
+
+                // If this is being made closeable and has no close button, add one.
+                if (closeable && !close) {
+                    // The close button should be a child of the modal - not its
+                    // content element, so temporarily change the content element.
+                    const temp = this.contentEl_;
+                    this.contentEl_ = this.el_;
+                    close = this.addChild('closeButton', {
+                        controlText: 'Close Modal Dialog'
+                    });
+                    this.contentEl_ = temp;
+                    this.on(close, 'close', this.close_);
+                }
+
+                // If this is being made uncloseable and has a close button, remove it.
+                if (!closeable && close) {
+                    this.off(close, 'close', this.close_);
+                    this.removeChild(close);
+                    close.dispose();
+                }
+            }
+            return this.closeable_;
+        }
+
+        /**
+         * Fill the modal's content element with the modal's "content" option.
+         * The content element will be emptied before this change takes place.
+         */
+        fill() {
+            this.fillWith(this.content());
+        }
+
+        /**
+         * Fill the modal's content element with arbitrary content.
+         * The content element will be emptied before this change takes place.
+         *
+         * @fires ModalDialog#beforemodalfill
+         * @fires ModalDialog#modalfill
+         *
+         * @param { import('./utils/dom').ContentDescriptor} [content]
+         *        The same rules apply to this as apply to the `content` option.
+         */
+        fillWith(content) {
+            const contentEl = this.contentEl();
+            const parentEl = contentEl.parentNode;
+            const nextSiblingEl = contentEl.nextSibling;
+
+            /**
+             * Fired just before a `ModalDialog` is filled with content.
+             *
+             * @event ModalDialog#beforemodalfill
+             * @type {Event}
+             */
+            this.trigger('beforemodalfill');
+            this.hasBeenFilled_ = true;
+
+            // Detach the content element from the DOM before performing
+            // manipulation to avoid modifying the live DOM multiple times.
+            parentEl.removeChild(contentEl);
+            this.empty();
+            insertContent(contentEl, content);
+            /**
+             * Fired just after a `ModalDialog` is filled with content.
+             *
+             * @event ModalDialog#modalfill
+             * @type {Event}
+             */
+            this.trigger('modalfill');
+
+            // Re-inject the re-filled content element.
+            if (nextSiblingEl) {
+                parentEl.insertBefore(contentEl, nextSiblingEl);
+            } else {
+                parentEl.appendChild(contentEl);
+            }
+
+            // make sure that the close button is last in the dialog DOM
+            const closeButton = this.getChild('closeButton');
+            if (closeButton) {
+                parentEl.appendChild(closeButton.el_);
+            }
+        }
+
+        /**
+         * Empties the content element. This happens anytime the modal is filled.
+         *
+         * @fires ModalDialog#beforemodalempty
+         * @fires ModalDialog#modalempty
+         */
+        empty() {
+            /**
+             * Fired just before a `ModalDialog` is emptied.
+             *
+             * @event ModalDialog#beforemodalempty
+             * @type {Event}
+             */
+            this.trigger('beforemodalempty');
+            emptyEl(this.contentEl());
+
+            /**
+             * Fired just after a `ModalDialog` is emptied.
+             *
+             * @event ModalDialog#modalempty
+             * @type {Event}
+             */
+            this.trigger('modalempty');
+        }
+
+        /**
+         * Gets or sets the modal content, which gets normalized before being
+         * rendered into the DOM.
+         *
+         * This does not update the DOM or fill the modal, but it is called during
+         * that process.
+         *
+         * @param  { import('./utils/dom').ContentDescriptor} [value]
+         *         If defined, sets the internal content value to be used on the
+         *         next call(s) to `fill`. This value is normalized before being
+         *         inserted. To "clear" the internal content value, pass `null`.
+         *
+         * @return { import('./utils/dom').ContentDescriptor}
+         *         The current content of the modal dialog
+         */
+        content(value) {
+            if (typeof value !== 'undefined') {
+                this.content_ = value;
+            }
+            return this.content_;
+        }
+
+        /**
+         * conditionally focus the modal dialog if focus was previously on the player.
+         *
+         * @private
+         */
+        conditionalFocus_() {
+            const activeEl = document.activeElement;
+            const playerEl = this.player_.el_;
+            this.previouslyActiveEl_ = null;
+            if (playerEl.contains(activeEl) || playerEl === activeEl) {
+                this.previouslyActiveEl_ = activeEl;
+                this.focus();
+            }
+        }
+
+        /**
+         * conditionally blur the element and refocus the last focused element
+         *
+         * @private
+         */
+        conditionalBlur_() {
+            if (this.previouslyActiveEl_) {
+                this.previouslyActiveEl_.focus();
+                this.previouslyActiveEl_ = null;
+            }
+        }
+
+        /**
+         * Keydown handler. Attached when modal is focused.
+         *
+         * @listens keydown
+         */
+        handleKeyDown(event) {
+            // Do not allow keydowns to reach out of the modal dialog.
+            event.stopPropagation();
+            if (keycode.isEventKey(event, 'Escape') && this.closeable()) {
+                event.preventDefault();
+                this.close();
+                return;
+            }
+
+            // exit early if it isn't a tab key
+            if (!keycode.isEventKey(event, 'Tab')) {
+                return;
+            }
+            const focusableEls = this.focusableEls_();
+            const activeEl = this.el_.querySelector(':focus');
+            let focusIndex;
+            for (let i = 0; i < focusableEls.length; i++) {
+                if (activeEl === focusableEls[i]) {
+                    focusIndex = i;
+                    break;
+                }
+            }
+            if (document.activeElement === this.el_) {
+                focusIndex = 0;
+            }
+            if (event.shiftKey && focusIndex === 0) {
+                focusableEls[focusableEls.length - 1].focus();
+                event.preventDefault();
+            } else if (!event.shiftKey && focusIndex === focusableEls.length - 1) {
+                focusableEls[0].focus();
+                event.preventDefault();
+            }
+        }
+
+        /**
+         * get all focusable elements
+         *
+         * @private
+         */
+        focusableEls_() {
+            const allChildren = this.el_.querySelectorAll('*');
+            return Array.prototype.filter.call(allChildren, child => {
+                return (child instanceof window.HTMLAnchorElement || child instanceof window.HTMLAreaElement) && child.hasAttribute('href') || (child instanceof window.HTMLInputElement || child instanceof window.HTMLSelectElement || child instanceof window.HTMLTextAreaElement || child instanceof window.HTMLButtonElement) && !child.hasAttribute('disabled') || child instanceof window.HTMLIFrameElement || child instanceof window.HTMLObjectElement || child instanceof window.HTMLEmbedElement || child.hasAttribute('tabindex') && child.getAttribute('tabindex') !== -1 || child.hasAttribute('contenteditable');
+            });
+        }
+    }
+
+    /**
+     * Default options for `ModalDialog` default options.
+     *
+     * @type {Object}
+     * @private
+     */
+    ModalDialog.prototype.options_ = {
+        pauseOnOpen: true,
+        temporary: true
+    };
+    Component$1.registerComponent('ModalDialog', ModalDialog);
+
+    /**
+     * @file track-list.js
+     */
+
+    /**
+     * Common functionaliy between {@link TextTrackList}, {@link AudioTrackList}, and
+     * {@link VideoTrackList}
+     *
+     * @extends EventTarget
+     */
+    class TrackList extends EventTarget$2 {
+        /**
+         * Create an instance of this class
+         *
+         * @param { import('./track').default[] } tracks
+         *        A list of tracks to initialize the list with.
+         *
+         * @abstract
+         */
+        constructor(tracks = []) {
+            super();
+            this.tracks_ = [];
+
+            /**
+             * @memberof TrackList
+             * @member {number} length
+             *         The current number of `Track`s in the this Trackist.
+             * @instance
+             */
+            Object.defineProperty(this, 'length', {
+                get() {
+                    return this.tracks_.length;
+                }
+            });
+            for (let i = 0; i < tracks.length; i++) {
+                this.addTrack(tracks[i]);
+            }
+        }
+
+        /**
+         * Add a {@link Track} to the `TrackList`
+         *
+         * @param { import('./track').default } track
+         *        The audio, video, or text track to add to the list.
+         *
+         * @fires TrackList#addtrack
+         */
+        addTrack(track) {
+            const index = this.tracks_.length;
+            if (!('' + index in this)) {
+                Object.defineProperty(this, index, {
+                    get() {
+                        return this.tracks_[index];
+                    }
+                });
+            }
+
+            // Do not add duplicate tracks
+            if (this.tracks_.indexOf(track) === -1) {
+                this.tracks_.push(track);
+                /**
+                 * Triggered when a track is added to a track list.
+                 *
+                 * @event TrackList#addtrack
+                 * @type {Event}
+                 * @property {Track} track
+                 *           A reference to track that was added.
+                 */
+                this.trigger({
+                    track,
+                    type: 'addtrack',
+                    target: this
+                });
+            }
+
+            /**
+             * Triggered when a track label is changed.
+             *
+             * @event TrackList#addtrack
+             * @type {Event}
+             * @property {Track} track
+             *           A reference to track that was added.
+             */
+            track.labelchange_ = () => {
+                this.trigger({
+                    track,
+                    type: 'labelchange',
+                    target: this
+                });
+            };
+            if (isEvented(track)) {
+                track.addEventListener('labelchange', track.labelchange_);
+            }
+        }
+
+        /**
+         * Remove a {@link Track} from the `TrackList`
+         *
+         * @param { import('./track').default } rtrack
+         *        The audio, video, or text track to remove from the list.
+         *
+         * @fires TrackList#removetrack
+         */
+        removeTrack(rtrack) {
+            let track;
+            for (let i = 0, l = this.length; i < l; i++) {
+                if (this[i] === rtrack) {
+                    track = this[i];
+                    if (track.off) {
+                        track.off();
+                    }
+                    this.tracks_.splice(i, 1);
+                    break;
+                }
+            }
+            if (!track) {
+                return;
+            }
+
+            /**
+             * Triggered when a track is removed from track list.
+             *
+             * @event TrackList#removetrack
+             * @type {Event}
+             * @property {Track} track
+             *           A reference to track that was removed.
+             */
+            this.trigger({
+                track,
+                type: 'removetrack',
+                target: this
+            });
+        }
+
+        /**
+         * Get a Track from the TrackList by a tracks id
+         *
+         * @param {string} id - the id of the track to get
+         * @method getTrackById
+         * @return { import('./track').default }
+         * @private
+         */
+        getTrackById(id) {
+            let result = null;
+            for (let i = 0, l = this.length; i < l; i++) {
+                const track = this[i];
+                if (track.id === id) {
+                    result = track;
+                    break;
+                }
+            }
+            return result;
+        }
+    }
+
+    /**
+     * Triggered when a different track is selected/enabled.
+     *
+     * @event TrackList#change
+     * @type {Event}
+     */
+
+    /**
+     * Events that can be called with on + eventName. See {@link EventHandler}.
+     *
+     * @property {Object} TrackList#allowedEvents_
+     * @private
+     */
+    TrackList.prototype.allowedEvents_ = {
+        change: 'change',
+        addtrack: 'addtrack',
+        removetrack: 'removetrack',
+        labelchange: 'labelchange'
+    };
+
+    // emulate attribute EventHandler support to allow for feature detection
+    for (const event in TrackList.prototype.allowedEvents_) {
+        TrackList.prototype['on' + event] = null;
+    }
+
+    /**
+     * @file audio-track-list.js
+     */
+
+    /**
+     * Anywhere we call this function we diverge from the spec
+     * as we only support one enabled audiotrack at a time
+     *
+     * @param {AudioTrackList} list
+     *        list to work on
+     *
+     * @param { import('./audio-track').default } track
+     *        The track to skip
+     *
+     * @private
+     */
+    const disableOthers$1 = function (list, track) {
+        for (let i = 0; i < list.length; i++) {
+            if (!Object.keys(list[i]).length || track.id === list[i].id) {
+                continue;
+            }
+            // another audio track is enabled, disable it
+            list[i].enabled = false;
+        }
+    };
+
+    /**
+     * The current list of {@link AudioTrack} for a media file.
+     *
+     * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#audiotracklist}
+     * @extends TrackList
+     */
+    class AudioTrackList extends TrackList {
+        /**
+         * Create an instance of this class.
+         *
+         * @param {AudioTrack[]} [tracks=[]]
+         *        A list of `AudioTrack` to instantiate the list with.
+         */
+        constructor(tracks = []) {
+            // make sure only 1 track is enabled
+            // sorted from last index to first index
+            for (let i = tracks.length - 1; i >= 0; i--) {
+                if (tracks[i].enabled) {
+                    disableOthers$1(tracks, tracks[i]);
+                    break;
+                }
+            }
+            super(tracks);
+            this.changing_ = false;
+        }
+
+        /**
+         * Add an {@link AudioTrack} to the `AudioTrackList`.
+         *
+         * @param { import('./audio-track').default } track
+         *        The AudioTrack to add to the list
+         *
+         * @fires TrackList#addtrack
+         */
+        addTrack(track) {
+            if (track.enabled) {
+                disableOthers$1(this, track);
+            }
+            super.addTrack(track);
+            // native tracks don't have this
+            if (!track.addEventListener) {
+                return;
+            }
+            track.enabledChange_ = () => {
+                // when we are disabling other tracks (since we don't support
+                // more than one track at a time) we will set changing_
+                // to true so that we don't trigger additional change events
+                if (this.changing_) {
+                    return;
+                }
+                this.changing_ = true;
+                disableOthers$1(this, track);
+                this.changing_ = false;
+                this.trigger('change');
+            };
+
+            /**
+             * @listens AudioTrack#enabledchange
+             * @fires TrackList#change
+             */
+            track.addEventListener('enabledchange', track.enabledChange_);
+        }
+        removeTrack(rtrack) {
+            super.removeTrack(rtrack);
+            if (rtrack.removeEventListener && rtrack.enabledChange_) {
+                rtrack.removeEventListener('enabledchange', rtrack.enabledChange_);
+                rtrack.enabledChange_ = null;
+            }
+        }
+    }
+
+    /**
+     * @file video-track-list.js
+     */
+
+    /**
+     * Un-select all other {@link VideoTrack}s that are selected.
+     *
+     * @param {VideoTrackList} list
+     *        list to work on
+     *
+     * @param { import('./video-track').default } track
+     *        The track to skip
+     *
+     * @private
+     */
+    const disableOthers = function (list, track) {
+        for (let i = 0; i < list.length; i++) {
+            if (!Object.keys(list[i]).length || track.id === list[i].id) {
+                continue;
+            }
+            // another video track is enabled, disable it
+            list[i].selected = false;
+        }
+    };
+
+    /**
+     * The current list of {@link VideoTrack} for a video.
+     *
+     * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#videotracklist}
+     * @extends TrackList
+     */
+    class VideoTrackList extends TrackList {
+        /**
+         * Create an instance of this class.
+         *
+         * @param {VideoTrack[]} [tracks=[]]
+         *        A list of `VideoTrack` to instantiate the list with.
+         */
+        constructor(tracks = []) {
+            // make sure only 1 track is enabled
+            // sorted from last index to first index
+            for (let i = tracks.length - 1; i >= 0; i--) {
+                if (tracks[i].selected) {
+                    disableOthers(tracks, tracks[i]);
+                    break;
+                }
+            }
+            super(tracks);
+            this.changing_ = false;
+
+            /**
+             * @member {number} VideoTrackList#selectedIndex
+             *         The current index of the selected {@link VideoTrack`}.
+             */
+            Object.defineProperty(this, 'selectedIndex', {
+                get() {
+                    for (let i = 0; i < this.length; i++) {
+                        if (this[i].selected) {
+                            return i;
+                        }
+                    }
+                    return -1;
+                },
+                set() {}
+            });
+        }
+
+        /**
+         * Add a {@link VideoTrack} to the `VideoTrackList`.
+         *
+         * @param { import('./video-track').default } track
+         *        The VideoTrack to add to the list
+         *
+         * @fires TrackList#addtrack
+         */
+        addTrack(track) {
+            if (track.selected) {
+                disableOthers(this, track);
+            }
+            super.addTrack(track);
+            // native tracks don't have this
+            if (!track.addEventListener) {
+                return;
+            }
+            track.selectedChange_ = () => {
+                if (this.changing_) {
+                    return;
+                }
+                this.changing_ = true;
+                disableOthers(this, track);
+                this.changing_ = false;
+                this.trigger('change');
+            };
+
+            /**
+             * @listens VideoTrack#selectedchange
+             * @fires TrackList#change
+             */
+            track.addEventListener('selectedchange', track.selectedChange_);
+        }
+        removeTrack(rtrack) {
+            super.removeTrack(rtrack);
+            if (rtrack.removeEventListener && rtrack.selectedChange_) {
+                rtrack.removeEventListener('selectedchange', rtrack.selectedChange_);
+                rtrack.selectedChange_ = null;
+            }
+        }
+    }
+
+    /**
+     * @file text-track-list.js
+     */
+
+    /**
+     * The current list of {@link TextTrack} for a media file.
+     *
+     * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#texttracklist}
+     * @extends TrackList
+     */
+    class TextTrackList extends TrackList {
+        /**
+         * Add a {@link TextTrack} to the `TextTrackList`
+         *
+         * @param { import('./text-track').default } track
+         *        The text track to add to the list.
+         *
+         * @fires TrackList#addtrack
+         */
+        addTrack(track) {
+            super.addTrack(track);
+            if (!this.queueChange_) {
+                this.queueChange_ = () => this.queueTrigger('change');
+            }
+            if (!this.triggerSelectedlanguagechange) {
+                this.triggerSelectedlanguagechange_ = () => this.trigger('selectedlanguagechange');
+            }
+
+            /**
+             * @listens TextTrack#modechange
+             * @fires TrackList#change
+             */
+            track.addEventListener('modechange', this.queueChange_);
+            const nonLanguageTextTrackKind = ['metadata', 'chapters'];
+            if (nonLanguageTextTrackKind.indexOf(track.kind) === -1) {
+                track.addEventListener('modechange', this.triggerSelectedlanguagechange_);
+            }
+        }
+        removeTrack(rtrack) {
+            super.removeTrack(rtrack);
+
+            // manually remove the event handlers we added
+            if (rtrack.removeEventListener) {
+                if (this.queueChange_) {
+                    rtrack.removeEventListener('modechange', this.queueChange_);
+                }
+                if (this.selectedlanguagechange_) {
+                    rtrack.removeEventListener('modechange', this.triggerSelectedlanguagechange_);
+                }
+            }
+        }
+    }
+
+    /**
+     * @file html-track-element-list.js
+     */
+
+    /**
+     * The current list of {@link HtmlTrackElement}s.
+     */
+    class HtmlTrackElementList {
+        /**
+         * Create an instance of this class.
+         *
+         * @param {HtmlTrackElement[]} [tracks=[]]
+         *        A list of `HtmlTrackElement` to instantiate the list with.
+         */
+        constructor(trackElements = []) {
+            this.trackElements_ = [];
+
+            /**
+             * @memberof HtmlTrackElementList
+             * @member {number} length
+             *         The current number of `Track`s in the this Trackist.
+             * @instance
+             */
+            Object.defineProperty(this, 'length', {
+                get() {
+                    return this.trackElements_.length;
+                }
+            });
+            for (let i = 0, length = trackElements.length; i < length; i++) {
+                this.addTrackElement_(trackElements[i]);
+            }
+        }
+
+        /**
+         * Add an {@link HtmlTrackElement} to the `HtmlTrackElementList`
+         *
+         * @param {HtmlTrackElement} trackElement
+         *        The track element to add to the list.
+         *
+         * @private
+         */
+        addTrackElement_(trackElement) {
+            const index = this.trackElements_.length;
+            if (!('' + index in this)) {
+                Object.defineProperty(this, index, {
+                    get() {
+                        return this.trackElements_[index];
+                    }
+                });
+            }
+
+            // Do not add duplicate elements
+            if (this.trackElements_.indexOf(trackElement) === -1) {
+                this.trackElements_.push(trackElement);
+            }
+        }
+
+        /**
+         * Get an {@link HtmlTrackElement} from the `HtmlTrackElementList` given an
+         * {@link TextTrack}.
+         *
+         * @param {TextTrack} track
+         *        The track associated with a track element.
+         *
+         * @return {HtmlTrackElement|undefined}
+         *         The track element that was found or undefined.
+         *
+         * @private
+         */
+        getTrackElementByTrack_(track) {
+            let trackElement_;
+            for (let i = 0, length = this.trackElements_.length; i < length; i++) {
+                if (track === this.trackElements_[i].track) {
+                    trackElement_ = this.trackElements_[i];
+                    break;
+                }
+            }
+            return trackElement_;
+        }
+
+        /**
+         * Remove a {@link HtmlTrackElement} from the `HtmlTrackElementList`
+         *
+         * @param {HtmlTrackElement} trackElement
+         *        The track element to remove from the list.
+         *
+         * @private
+         */
+        removeTrackElement_(trackElement) {
+            for (let i = 0, length = this.trackElements_.length; i < length; i++) {
+                if (trackElement === this.trackElements_[i]) {
+                    if (this.trackElements_[i].track && typeof this.trackElements_[i].track.off === 'function') {
+                        this.trackElements_[i].track.off();
+                    }
+                    if (typeof this.trackElements_[i].off === 'function') {
+                        this.trackElements_[i].off();
+                    }
+                    this.trackElements_.splice(i, 1);
+                    break;
+                }
+            }
+        }
+    }
+
+    /**
+     * @file text-track-cue-list.js
+     */
+
+    /**
+     * @typedef {Object} TextTrackCueList~TextTrackCue
+     *
+     * @property {string} id
+     *           The unique id for this text track cue
+     *
+     * @property {number} startTime
+     *           The start time for this text track cue
+     *
+     * @property {number} endTime
+     *           The end time for this text track cue
+     *
+     * @property {boolean} pauseOnExit
+     *           Pause when the end time is reached if true.
+     *
+     * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#texttrackcue}
+     */
+
+    /**
+     * A List of TextTrackCues.
+     *
+     * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#texttrackcuelist}
+     */
+    class TextTrackCueList {
+        /**
+         * Create an instance of this class..
+         *
+         * @param {Array} cues
+         *        A list of cues to be initialized with
+         */
+        constructor(cues) {
+            TextTrackCueList.prototype.setCues_.call(this, cues);
+
+            /**
+             * @memberof TextTrackCueList
+             * @member {number} length
+             *         The current number of `TextTrackCue`s in the TextTrackCueList.
+             * @instance
+             */
+            Object.defineProperty(this, 'length', {
+                get() {
+                    return this.length_;
+                }
+            });
+        }
+
+        /**
+         * A setter for cues in this list. Creates getters
+         * an an index for the cues.
+         *
+         * @param {Array} cues
+         *        An array of cues to set
+         *
+         * @private
+         */
+        setCues_(cues) {
+            const oldLength = this.length || 0;
+            let i = 0;
+            const l = cues.length;
+            this.cues_ = cues;
+            this.length_ = cues.length;
+            const defineProp = function (index) {
+                if (!('' + index in this)) {
+                    Object.defineProperty(this, '' + index, {
+                        get() {
+                            return this.cues_[index];
+                        }
+                    });
+                }
+            };
+            if (oldLength < l) {
+                i = oldLength;
+                for (; i < l; i++) {
+                    defineProp.call(this, i);
+                }
+            }
+        }
+
+        /**
+         * Get a `TextTrackCue` that is currently in the `TextTrackCueList` by id.
+         *
+         * @param {string} id
+         *        The id of the cue that should be searched for.
+         *
+         * @return {TextTrackCueList~TextTrackCue|null}
+         *         A single cue or null if none was found.
+         */
+        getCueById(id) {
+            let result = null;
+            for (let i = 0, l = this.length; i < l; i++) {
+                const cue = this[i];
+                if (cue.id === id) {
+                    result = cue;
+                    break;
+                }
+            }
+            return result;
+        }
+    }
+
+    /**
+     * @file track-kinds.js
+     */
+
+    /**
+     * All possible `VideoTrackKind`s
+     *
+     * @see https://html.spec.whatwg.org/multipage/embedded-content.html#dom-videotrack-kind
+     * @typedef VideoTrack~Kind
+     * @enum
+     */
+    const VideoTrackKind = {
+        alternative: 'alternative',
+        captions: 'captions',
+        main: 'main',
+        sign: 'sign',
+        subtitles: 'subtitles',
+        commentary: 'commentary'
+    };
+
+    /**
+     * All possible `AudioTrackKind`s
+     *
+     * @see https://html.spec.whatwg.org/multipage/embedded-content.html#dom-audiotrack-kind
+     * @typedef AudioTrack~Kind
+     * @enum
+     */
+    const AudioTrackKind = {
+        'alternative': 'alternative',
+        'descriptions': 'descriptions',
+        'main': 'main',
+        'main-desc': 'main-desc',
+        'translation': 'translation',
+        'commentary': 'commentary'
+    };
+
+    /**
+     * All possible `TextTrackKind`s
+     *
+     * @see https://html.spec.whatwg.org/multipage/embedded-content.html#dom-texttrack-kind
+     * @typedef TextTrack~Kind
+     * @enum
+     */
+    const TextTrackKind = {
+        subtitles: 'subtitles',
+        captions: 'captions',
+        descriptions: 'descriptions',
+        chapters: 'chapters',
+        metadata: 'metadata'
+    };
+
+    /**
+     * All possible `TextTrackMode`s
+     *
+     * @see https://html.spec.whatwg.org/multipage/embedded-content.html#texttrackmode
+     * @typedef TextTrack~Mode
+     * @enum
+     */
+    const TextTrackMode = {
+        disabled: 'disabled',
+        hidden: 'hidden',
+        showing: 'showing'
+    };
+
+    /**
+     * @file track.js
+     */
+
+    /**
+     * A Track class that contains all of the common functionality for {@link AudioTrack},
+     * {@link VideoTrack}, and {@link TextTrack}.
+     *
+     * > Note: This class should not be used directly
+     *
+     * @see {@link https://html.spec.whatwg.org/multipage/embedded-content.html}
+     * @extends EventTarget
+     * @abstract
+     */
+    class Track extends EventTarget$2 {
+        /**
+         * Create an instance of this class.
+         *
+         * @param {Object} [options={}]
+         *        Object of option names and values
+         *
+         * @param {string} [options.kind='']
+         *        A valid kind for the track type you are creating.
+         *
+         * @param {string} [options.id='vjs_track_' + Guid.newGUID()]
+         *        A unique id for this AudioTrack.
+         *
+         * @param {string} [options.label='']
+         *        The menu label for this track.
+         *
+         * @param {string} [options.language='']
+         *        A valid two character language code.
+         *
+         * @abstract
+         */
+        constructor(options = {}) {
+            super();
+            const trackProps = {
+                id: options.id || 'vjs_track_' + newGUID(),
+                kind: options.kind || '',
+                language: options.language || ''
+            };
+            let label = options.label || '';
+
+            /**
+             * @memberof Track
+             * @member {string} id
+             *         The id of this track. Cannot be changed after creation.
+             * @instance
+             *
+             * @readonly
              */
 
+            /**
+             * @memberof Track
+             * @member {string} kind
+             *         The kind of track that this is. Cannot be changed after creation.
+             * @instance
+             *
+             * @readonly
+             */
 
-            this.trigger('modechange');
-          }
-        },
+            /**
+             * @memberof Track
+             * @member {string} language
+             *         The two letter language code for this track. Cannot be changed after
+             *         creation.
+             * @instance
+             *
+             * @readonly
+             */
 
-        /**
-         * @memberof TextTrack
-         * @member {TextTrackCueList} cues
-         *         The text track cue list for this TextTrack.
-         * @instance
-         */
-        cues: {
-          get: function get() {
-            if (!this.loaded_) {
-              return null;
+            for (const key in trackProps) {
+                Object.defineProperty(this, key, {
+                    get() {
+                        return trackProps[key];
+                    },
+                    set() {}
+                });
             }
 
-            return cues;
-          },
-          set: function set() {}
-        },
+            /**
+             * @memberof Track
+             * @member {string} label
+             *         The label of this track. Cannot be changed after creation.
+             * @instance
+             *
+             * @fires Track#labelchange
+             */
+            Object.defineProperty(this, 'label', {
+                get() {
+                    return label;
+                },
+                set(newLabel) {
+                    if (newLabel !== label) {
+                        label = newLabel;
 
-        /**
-         * @memberof TextTrack
-         * @member {TextTrackCueList} activeCues
-         *         The list text track cues that are currently active for this TextTrack.
-         * @instance
-         */
-        activeCues: {
-          get: function get() {
-            if (!this.loaded_) {
-              return null;
-            } // nothing to do
-
-
-            if (this.cues.length === 0) {
-              return activeCues;
-            }
-
-            var ct = this.tech_.currentTime();
-            var active = [];
-
-            for (var i = 0, l = this.cues.length; i < l; i++) {
-              var cue = this.cues[i];
-
-              if (cue.startTime <= ct && cue.endTime >= ct) {
-                active.push(cue);
-              } else if (cue.startTime === cue.endTime && cue.startTime <= ct && cue.startTime + 0.5 >= ct) {
-                active.push(cue);
-              }
-            }
-
-            changed = false;
-
-            if (active.length !== this.activeCues_.length) {
-              changed = true;
-            } else {
-              for (var _i = 0; _i < active.length; _i++) {
-                if (this.activeCues_.indexOf(active[_i]) === -1) {
-                  changed = true;
+                        /**
+                         * An event that fires when label changes on this track.
+                         *
+                         * > Note: This is not part of the spec!
+                         *
+                         * @event Track#labelchange
+                         * @type {Event}
+                         */
+                        this.trigger('labelchange');
+                    }
                 }
-              }
+            });
+        }
+    }
+
+    /**
+     * @file url.js
+     * @module url
+     */
+
+    /**
+     * @typedef {Object} url:URLObject
+     *
+     * @property {string} protocol
+     *           The protocol of the url that was parsed.
+     *
+     * @property {string} hostname
+     *           The hostname of the url that was parsed.
+     *
+     * @property {string} port
+     *           The port of the url that was parsed.
+     *
+     * @property {string} pathname
+     *           The pathname of the url that was parsed.
+     *
+     * @property {string} search
+     *           The search query of the url that was parsed.
+     *
+     * @property {string} hash
+     *           The hash of the url that was parsed.
+     *
+     * @property {string} host
+     *           The host of the url that was parsed.
+     */
+
+    /**
+     * Resolve and parse the elements of a URL.
+     *
+     * @function
+     * @param    {String} url
+     *           The url to parse
+     *
+     * @return   {url:URLObject}
+     *           An object of url details
+     */
+    const parseUrl = function (url) {
+        // This entire method can be replace with URL once we are able to drop IE11
+
+        const props = ['protocol', 'hostname', 'port', 'pathname', 'search', 'hash', 'host'];
+
+        // add the url to an anchor and let the browser parse the URL
+        const a = document.createElement('a');
+        a.href = url;
+
+        // Copy the specific URL properties to a new object
+        // This is also needed for IE because the anchor loses its
+        // properties when it's removed from the dom
+        const details = {};
+        for (let i = 0; i < props.length; i++) {
+            details[props[i]] = a[props[i]];
+        }
+
+        // IE adds the port to the host property unlike everyone else. If
+        // a port identifier is added for standard ports, strip it.
+        if (details.protocol === 'http:') {
+            details.host = details.host.replace(/:80$/, '');
+        }
+        if (details.protocol === 'https:') {
+            details.host = details.host.replace(/:443$/, '');
+        }
+        if (!details.protocol) {
+            details.protocol = window.location.protocol;
+        }
+
+        /* istanbul ignore if */
+        if (!details.host) {
+            details.host = window.location.host;
+        }
+        return details;
+    };
+
+    /**
+     * Get absolute version of relative URL.
+     *
+     * @function
+     * @param    {string} url
+     *           URL to make absolute
+     *
+     * @return   {string}
+     *           Absolute URL
+     *
+     * @see      http://stackoverflow.com/questions/470832/getting-an-absolute-url-from-a-relative-one-ie6-issue
+     */
+    const getAbsoluteURL = function (url) {
+        // Check if absolute URL
+        if (!url.match(/^https?:\/\//)) {
+            // Add the url to an anchor and let the browser parse it to convert to an absolute url
+            const a = document.createElement('a');
+            a.href = url;
+            url = a.href;
+        }
+        return url;
+    };
+
+    /**
+     * Returns the extension of the passed file name. It will return an empty string
+     * if passed an invalid path.
+     *
+     * @function
+     * @param    {string} path
+     *           The fileName path like '/path/to/file.mp4'
+     *
+     * @return  {string}
+     *           The extension in lower case or an empty string if no
+     *           extension could be found.
+     */
+    const getFileExtension = function (path) {
+        if (typeof path === 'string') {
+            const splitPathRe = /^(\/?)([\s\S]*?)((?:\.{1,2}|[^\/]+?)(\.([^\.\/\?]+)))(?:[\/]*|[\?].*)$/;
+            const pathParts = splitPathRe.exec(path);
+            if (pathParts) {
+                return pathParts.pop().toLowerCase();
             }
-
-            this.activeCues_ = active;
-            activeCues.setCues_(this.activeCues_);
-            return activeCues;
-          },
-          // /!\ Keep this setter empty (see the timeupdate handler above)
-          set: function set() {}
         }
-      });
-
-      if (settings.src) {
-        _this.src = settings.src;
-
-        if (!_this.preload_) {
-          // Tracks will load on-demand.
-          // Act like we're loaded for other purposes.
-          _this.loaded_ = true;
-        }
-
-        if (_this.preload_ || settings.kind !== 'subtitles' && settings.kind !== 'captions') {
-          loadTrack(_this.src, assertThisInitialized(_this));
-        }
-      } else {
-        _this.loaded_ = true;
-      }
-
-      return _this;
-    }
-
-    var _proto = TextTrack.prototype;
-
-    _proto.startTracking = function startTracking() {
-      // More precise cues based on requestVideoFrameCallback with a requestAnimationFram fallback
-      this.rvf_ = this.tech_.requestVideoFrameCallback(this.timeupdateHandler); // Also listen to timeupdate in case rVFC/rAF stops (window in background, audio in video el)
-
-      this.tech_.on('timeupdate', this.timeupdateHandler);
+        return '';
     };
 
-    _proto.stopTracking = function stopTracking() {
-      if (this.rvf_) {
-        this.tech_.cancelVideoFrameCallback(this.rvf_);
-        this.rvf_ = undefined;
-      }
-
-      this.tech_.off('timeupdate', this.timeupdateHandler);
-    }
     /**
-     * Add a cue to the internal list of cues.
+     * Returns whether the url passed is a cross domain request or not.
      *
-     * @param {TextTrack~Cue} cue
-     *        The cue to add to our internal list
-     */
-    ;
-
-    _proto.addCue = function addCue(originalCue) {
-      var cue = originalCue;
-
-      if (window.vttjs && !(originalCue instanceof window.vttjs.VTTCue)) {
-        cue = new window.vttjs.VTTCue(originalCue.startTime, originalCue.endTime, originalCue.text);
-
-        for (var prop in originalCue) {
-          if (!(prop in cue)) {
-            cue[prop] = originalCue[prop];
-          }
-        } // make sure that `id` is copied over
-
-
-        cue.id = originalCue.id;
-        cue.originalCue_ = originalCue;
-      }
-
-      var tracks = this.tech_.textTracks();
-
-      for (var i = 0; i < tracks.length; i++) {
-        if (tracks[i] !== this) {
-          tracks[i].removeCue(cue);
-        }
-      }
-
-      this.cues_.push(cue);
-      this.cues.setCues_(this.cues_);
-    }
-    /**
-     * Remove a cue from our internal list
+     * @function
+     * @param    {string} url
+     *           The url to check.
      *
-     * @param {TextTrack~Cue} removeCue
-     *        The cue to remove from our internal list
+     * @param    {Object} [winLoc]
+     *           the domain to check the url against, defaults to window.location
+     *
+     * @param    {string} [winLoc.protocol]
+     *           The window location protocol defaults to window.location.protocol
+     *
+     * @param    {string} [winLoc.host]
+     *           The window location host defaults to window.location.host
+     *
+     * @return   {boolean}
+     *           Whether it is a cross domain request or not.
      */
-    ;
+    const isCrossOrigin = function (url, winLoc = window.location) {
+        const urlInfo = parseUrl(url);
 
-    _proto.removeCue = function removeCue(_removeCue) {
-      var i = this.cues_.length;
+        // IE8 protocol relative urls will return ':' for protocol
+        const srcProtocol = urlInfo.protocol === ':' ? winLoc.protocol : urlInfo.protocol;
 
-      while (i--) {
-        var cue = this.cues_[i];
-
-        if (cue === _removeCue || cue.originalCue_ && cue.originalCue_ === _removeCue) {
-          this.cues_.splice(i, 1);
-          this.cues.setCues_(this.cues_);
-          break;
-        }
-      }
+        // Check if url is for another domain/origin
+        // IE8 doesn't know location.origin, so we won't rely on it here
+        const crossOrigin = srcProtocol + urlInfo.host !== winLoc.protocol + winLoc.host;
+        return crossOrigin;
     };
 
-    return TextTrack;
-  }(Track);
-  /**
-   * cuechange - One or more cues in the track have become active or stopped being active.
-   */
+    var Url = /*#__PURE__*/Object.freeze({
+        __proto__: null,
+        parseUrl: parseUrl,
+        getAbsoluteURL: getAbsoluteURL,
+        getFileExtension: getFileExtension,
+        isCrossOrigin: isCrossOrigin
+    });
 
+    var win;
+    if (typeof window !== "undefined") {
+        win = window;
+    } else if (typeof commonjsGlobal !== "undefined") {
+        win = commonjsGlobal;
+    } else if (typeof self !== "undefined") {
+        win = self;
+    } else {
+        win = {};
+    }
+    var window_1 = win;
 
-  TextTrack.prototype.allowedEvents_ = {
-    cuechange: 'cuechange'
-  };
-
-  /**
-   * A representation of a single `AudioTrack`. If it is part of an {@link AudioTrackList}
-   * only one `AudioTrack` in the list will be enabled at a time.
-   *
-   * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#audiotrack}
-   * @extends Track
-   */
-
-  var AudioTrack = /*#__PURE__*/function (_Track) {
-    inheritsLoose(AudioTrack, _Track);
-
-    /**
-     * Create an instance of this class.
-     *
-     * @param {Object} [options={}]
-     *        Object of option names and values
-     *
-     * @param {AudioTrack~Kind} [options.kind='']
-     *        A valid audio track kind
-     *
-     * @param {string} [options.id='vjs_track_' + Guid.newGUID()]
-     *        A unique id for this AudioTrack.
-     *
-     * @param {string} [options.label='']
-     *        The menu label for this track.
-     *
-     * @param {string} [options.language='']
-     *        A valid two character language code.
-     *
-     * @param {boolean} [options.enabled]
-     *        If this track is the one that is currently playing. If this track is part of
-     *        an {@link AudioTrackList}, only one {@link AudioTrack} will be enabled.
-     */
-    function AudioTrack(options) {
-      var _this;
-
-      if (options === void 0) {
-        options = {};
-      }
-
-      var settings = mergeOptions$3(options, {
-        kind: AudioTrackKind[options.kind] || ''
-      });
-      _this = _Track.call(this, settings) || this;
-      var enabled = false;
-      /**
-       * @memberof AudioTrack
-       * @member {boolean} enabled
-       *         If this `AudioTrack` is enabled or not. When setting this will
-       *         fire {@link AudioTrack#enabledchange} if the state of enabled is changed.
-       * @instance
-       *
-       * @fires VideoTrack#selectedchange
-       */
-
-      Object.defineProperty(assertThisInitialized(_this), 'enabled', {
-        get: function get() {
-          return enabled;
-        },
-        set: function set(newEnabled) {
-          // an invalid or unchanged value
-          if (typeof newEnabled !== 'boolean' || newEnabled === enabled) {
-            return;
-          }
-
-          enabled = newEnabled;
-          /**
-           * An event that fires when enabled changes on this track. This allows
-           * the AudioTrackList that holds this track to act accordingly.
-           *
-           * > Note: This is not part of the spec! Native tracks will do
-           *         this internally without an event.
-           *
-           * @event AudioTrack#enabledchange
-           * @type {EventTarget~Event}
-           */
-
-          this.trigger('enabledchange');
+    var _extends_1 = createCommonjsModule(function (module) {
+        function _extends() {
+            module.exports = _extends = Object.assign ? Object.assign.bind() : function (target) {
+                for (var i = 1; i < arguments.length; i++) {
+                    var source = arguments[i];
+                    for (var key in source) {
+                        if (Object.prototype.hasOwnProperty.call(source, key)) {
+                            target[key] = source[key];
+                        }
+                    }
+                }
+                return target;
+            }, module.exports.__esModule = true, module.exports["default"] = module.exports;
+            return _extends.apply(this, arguments);
         }
-      }); // if the user sets this track to selected then
-      // set selected to that true value otherwise
-      // we keep it false
+        module.exports = _extends, module.exports.__esModule = true, module.exports["default"] = module.exports;
+    });
+    var _extends$1 = unwrapExports(_extends_1);
 
-      if (settings.enabled) {
-        _this.enabled = settings.enabled;
-      }
-
-      _this.loaded_ = true;
-      return _this;
+    var isFunction_1 = isFunction;
+    var toString = Object.prototype.toString;
+    function isFunction(fn) {
+        if (!fn) {
+            return false;
+        }
+        var string = toString.call(fn);
+        return string === '[object Function]' || typeof fn === 'function' && string !== '[object RegExp]' || typeof window !== 'undefined' && (
+            // IE8 and below
+            fn === window.setTimeout || fn === window.alert || fn === window.confirm || fn === window.prompt);
     }
 
-    return AudioTrack;
-  }(Track);
-
-  /**
-   * A representation of a single `VideoTrack`.
-   *
-   * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#videotrack}
-   * @extends Track
-   */
-
-  var VideoTrack = /*#__PURE__*/function (_Track) {
-    inheritsLoose(VideoTrack, _Track);
-
-    /**
-     * Create an instance of this class.
-     *
-     * @param {Object} [options={}]
-     *        Object of option names and values
-     *
-     * @param {string} [options.kind='']
-     *        A valid {@link VideoTrack~Kind}
-     *
-     * @param {string} [options.id='vjs_track_' + Guid.newGUID()]
-     *        A unique id for this AudioTrack.
-     *
-     * @param {string} [options.label='']
-     *        The menu label for this track.
-     *
-     * @param {string} [options.language='']
-     *        A valid two character language code.
-     *
-     * @param {boolean} [options.selected]
-     *        If this track is the one that is currently playing.
-     */
-    function VideoTrack(options) {
-      var _this;
-
-      if (options === void 0) {
-        options = {};
-      }
-
-      var settings = mergeOptions$3(options, {
-        kind: VideoTrackKind[options.kind] || ''
-      });
-      _this = _Track.call(this, settings) || this;
-      var selected = false;
-      /**
-       * @memberof VideoTrack
-       * @member {boolean} selected
-       *         If this `VideoTrack` is selected or not. When setting this will
-       *         fire {@link VideoTrack#selectedchange} if the state of selected changed.
-       * @instance
-       *
-       * @fires VideoTrack#selectedchange
-       */
-
-      Object.defineProperty(assertThisInitialized(_this), 'selected', {
-        get: function get() {
-          return selected;
-        },
-        set: function set(newSelected) {
-          // an invalid or unchanged value
-          if (typeof newSelected !== 'boolean' || newSelected === selected) {
-            return;
-          }
-
-          selected = newSelected;
-          /**
-           * An event that fires when selected changes on this track. This allows
-           * the VideoTrackList that holds this track to act accordingly.
-           *
-           * > Note: This is not part of the spec! Native tracks will do
-           *         this internally without an event.
-           *
-           * @event VideoTrack#selectedchange
-           * @type {EventTarget~Event}
-           */
-
-          this.trigger('selectedchange');
+    var httpResponseHandler = function httpResponseHandler(callback, decodeResponseBody) {
+        if (decodeResponseBody === void 0) {
+            decodeResponseBody = false;
         }
-      }); // if the user sets this track to selected then
-      // set selected to that true value otherwise
-      // we keep it false
+        return function (err, response, responseBody) {
+            // if the XHR failed, return that error
+            if (err) {
+                callback(err);
+                return;
+            } // if the HTTP status code is 4xx or 5xx, the request also failed
 
-      if (settings.selected) {
-        _this.selected = settings.selected;
-      }
+            if (response.statusCode >= 400 && response.statusCode <= 599) {
+                var cause = responseBody;
+                if (decodeResponseBody) {
+                    if (window_1.TextDecoder) {
+                        var charset = getCharset(response.headers && response.headers['content-type']);
+                        try {
+                            cause = new TextDecoder(charset).decode(responseBody);
+                        } catch (e) {}
+                    } else {
+                        cause = String.fromCharCode.apply(null, new Uint8Array(responseBody));
+                    }
+                }
+                callback({
+                    cause: cause
+                });
+                return;
+            } // otherwise, request succeeded
 
-      return _this;
+            callback(null, responseBody);
+        };
+    };
+    function getCharset(contentTypeHeader) {
+        if (contentTypeHeader === void 0) {
+            contentTypeHeader = '';
+        }
+        return contentTypeHeader.toLowerCase().split(';').reduce(function (charset, contentType) {
+            var _contentType$split = contentType.split('='),
+                type = _contentType$split[0],
+                value = _contentType$split[1];
+            if (type.trim() === 'charset') {
+                return value.trim();
+            }
+            return charset;
+        }, 'utf-8');
     }
+    var httpHandler = httpResponseHandler;
 
-    return VideoTrack;
-  }(Track);
-
-  /**
-   * @memberof HTMLTrackElement
-   * @typedef {HTMLTrackElement~ReadyState}
-   * @enum {number}
-   */
-
-  var NONE = 0;
-  var LOADING = 1;
-  var LOADED = 2;
-  var ERROR = 3;
-  /**
-   * A single track represented in the DOM.
-   *
-   * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#htmltrackelement}
-   * @extends EventTarget
-   */
-
-  var HTMLTrackElement = /*#__PURE__*/function (_EventTarget) {
-    inheritsLoose(HTMLTrackElement, _EventTarget);
-
+    createXHR.httpHandler = httpHandler;
     /**
-     * Create an instance of this class.
-     *
-     * @param {Object} options={}
-     *        Object of option names and values
-     *
-     * @param {Tech} options.tech
-     *        A reference to the tech that owns this HTMLTrackElement.
-     *
-     * @param {TextTrack~Kind} [options.kind='subtitles']
-     *        A valid text track kind.
-     *
-     * @param {TextTrack~Mode} [options.mode='disabled']
-     *        A valid text track mode.
-     *
-     * @param {string} [options.id='vjs_track_' + Guid.newGUID()]
-     *        A unique id for this TextTrack.
-     *
-     * @param {string} [options.label='']
-     *        The menu label for this track.
-     *
-     * @param {string} [options.language='']
-     *        A valid two character language code.
-     *
-     * @param {string} [options.srclang='']
-     *        A valid two character language code. An alternative, but deprioritized
-     *        version of `options.language`
-     *
-     * @param {string} [options.src]
-     *        A url to TextTrack cues.
-     *
-     * @param {boolean} [options.default]
-     *        If this track should default to on or off.
+     * @license
+     * slighly modified parse-headers 2.0.2 <https://github.com/kesla/parse-headers/>
+     * Copyright (c) 2014 David Björklund
+     * Available under the MIT license
+     * <https://github.com/kesla/parse-headers/blob/master/LICENCE>
      */
-    function HTMLTrackElement(options) {
-      var _this;
 
-      if (options === void 0) {
-        options = {};
-      }
-
-      _this = _EventTarget.call(this) || this;
-      var readyState;
-      var track = new TextTrack(options);
-      _this.kind = track.kind;
-      _this.src = track.src;
-      _this.srclang = track.language;
-      _this.label = track.label;
-      _this["default"] = track["default"];
-      Object.defineProperties(assertThisInitialized(_this), {
-        /**
-         * @memberof HTMLTrackElement
-         * @member {HTMLTrackElement~ReadyState} readyState
-         *         The current ready state of the track element.
-         * @instance
-         */
-        readyState: {
-          get: function get() {
-            return readyState;
-          }
-        },
-
-        /**
-         * @memberof HTMLTrackElement
-         * @member {TextTrack} track
-         *         The underlying TextTrack object.
-         * @instance
-         *
-         */
-        track: {
-          get: function get() {
-            return track;
-          }
+    var parseHeaders = function parseHeaders(headers) {
+        var result = {};
+        if (!headers) {
+            return result;
         }
-      });
-      readyState = NONE;
-      /**
-       * @listens TextTrack#loadeddata
-       * @fires HTMLTrackElement#load
-       */
-
-      track.addEventListener('loadeddata', function () {
-        readyState = LOADED;
-
-        _this.trigger({
-          type: 'load',
-          target: assertThisInitialized(_this)
+        headers.trim().split('\n').forEach(function (row) {
+            var index = row.indexOf(':');
+            var key = row.slice(0, index).trim().toLowerCase();
+            var value = row.slice(index + 1).trim();
+            if (typeof result[key] === 'undefined') {
+                result[key] = value;
+            } else if (Array.isArray(result[key])) {
+                result[key].push(value);
+            } else {
+                result[key] = [result[key], value];
+            }
         });
-      });
-      return _this;
+        return result;
+    };
+    var lib = createXHR; // Allow use of default import syntax in TypeScript
+
+    var default_1 = createXHR;
+    createXHR.XMLHttpRequest = window_1.XMLHttpRequest || noop$1;
+    createXHR.XDomainRequest = "withCredentials" in new createXHR.XMLHttpRequest() ? createXHR.XMLHttpRequest : window_1.XDomainRequest;
+    forEachArray(["get", "put", "post", "patch", "head", "delete"], function (method) {
+        createXHR[method === "delete" ? "del" : method] = function (uri, options, callback) {
+            options = initParams(uri, options, callback);
+            options.method = method.toUpperCase();
+            return _createXHR(options);
+        };
+    });
+    function forEachArray(array, iterator) {
+        for (var i = 0; i < array.length; i++) {
+            iterator(array[i]);
+        }
+    }
+    function isEmpty(obj) {
+        for (var i in obj) {
+            if (obj.hasOwnProperty(i)) return false;
+        }
+        return true;
+    }
+    function initParams(uri, options, callback) {
+        var params = uri;
+        if (isFunction_1(options)) {
+            callback = options;
+            if (typeof uri === "string") {
+                params = {
+                    uri: uri
+                };
+            }
+        } else {
+            params = _extends_1({}, options, {
+                uri: uri
+            });
+        }
+        params.callback = callback;
+        return params;
+    }
+    function createXHR(uri, options, callback) {
+        options = initParams(uri, options, callback);
+        return _createXHR(options);
+    }
+    function _createXHR(options) {
+        if (typeof options.callback === "undefined") {
+            throw new Error("callback argument missing");
+        }
+        var called = false;
+        var callback = function cbOnce(err, response, body) {
+            if (!called) {
+                called = true;
+                options.callback(err, response, body);
+            }
+        };
+        function readystatechange() {
+            if (xhr.readyState === 4) {
+                setTimeout(loadFunc, 0);
+            }
+        }
+        function getBody() {
+            // Chrome with requestType=blob throws errors arround when even testing access to responseText
+            var body = undefined;
+            if (xhr.response) {
+                body = xhr.response;
+            } else {
+                body = xhr.responseText || getXml(xhr);
+            }
+            if (isJson) {
+                try {
+                    body = JSON.parse(body);
+                } catch (e) {}
+            }
+            return body;
+        }
+        function errorFunc(evt) {
+            clearTimeout(timeoutTimer);
+            if (!(evt instanceof Error)) {
+                evt = new Error("" + (evt || "Unknown XMLHttpRequest Error"));
+            }
+            evt.statusCode = 0;
+            return callback(evt, failureResponse);
+        } // will load the data & process the response in a special response object
+
+        function loadFunc() {
+            if (aborted) return;
+            var status;
+            clearTimeout(timeoutTimer);
+            if (options.useXDR && xhr.status === undefined) {
+                //IE8 CORS GET successful response doesn't have a status field, but body is fine
+                status = 200;
+            } else {
+                status = xhr.status === 1223 ? 204 : xhr.status;
+            }
+            var response = failureResponse;
+            var err = null;
+            if (status !== 0) {
+                response = {
+                    body: getBody(),
+                    statusCode: status,
+                    method: method,
+                    headers: {},
+                    url: uri,
+                    rawRequest: xhr
+                };
+                if (xhr.getAllResponseHeaders) {
+                    //remember xhr can in fact be XDR for CORS in IE
+                    response.headers = parseHeaders(xhr.getAllResponseHeaders());
+                }
+            } else {
+                err = new Error("Internal XMLHttpRequest Error");
+            }
+            return callback(err, response, response.body);
+        }
+        var xhr = options.xhr || null;
+        if (!xhr) {
+            if (options.cors || options.useXDR) {
+                xhr = new createXHR.XDomainRequest();
+            } else {
+                xhr = new createXHR.XMLHttpRequest();
+            }
+        }
+        var key;
+        var aborted;
+        var uri = xhr.url = options.uri || options.url;
+        var method = xhr.method = options.method || "GET";
+        var body = options.body || options.data;
+        var headers = xhr.headers = options.headers || {};
+        var sync = !!options.sync;
+        var isJson = false;
+        var timeoutTimer;
+        var failureResponse = {
+            body: undefined,
+            headers: {},
+            statusCode: 0,
+            method: method,
+            url: uri,
+            rawRequest: xhr
+        };
+        if ("json" in options && options.json !== false) {
+            isJson = true;
+            headers["accept"] || headers["Accept"] || (headers["Accept"] = "application/json"); //Don't override existing accept header declared by user
+
+            if (method !== "GET" && method !== "HEAD") {
+                headers["content-type"] || headers["Content-Type"] || (headers["Content-Type"] = "application/json"); //Don't override existing accept header declared by user
+
+                body = JSON.stringify(options.json === true ? body : options.json);
+            }
+        }
+        xhr.onreadystatechange = readystatechange;
+        xhr.onload = loadFunc;
+        xhr.onerror = errorFunc; // IE9 must have onprogress be set to a unique function.
+
+        xhr.onprogress = function () {// IE must die
+        };
+        xhr.onabort = function () {
+            aborted = true;
+        };
+        xhr.ontimeout = errorFunc;
+        xhr.open(method, uri, !sync, options.username, options.password); //has to be after open
+
+        if (!sync) {
+            xhr.withCredentials = !!options.withCredentials;
+        } // Cannot set timeout with sync request
+        // not setting timeout on the xhr object, because of old webkits etc. not handling that correctly
+        // both npm's request and jquery 1.x use this kind of timeout, so this is being consistent
+
+        if (!sync && options.timeout > 0) {
+            timeoutTimer = setTimeout(function () {
+                if (aborted) return;
+                aborted = true; //IE9 may still call readystatechange
+
+                xhr.abort("timeout");
+                var e = new Error("XMLHttpRequest timeout");
+                e.code = "ETIMEDOUT";
+                errorFunc(e);
+            }, options.timeout);
+        }
+        if (xhr.setRequestHeader) {
+            for (key in headers) {
+                if (headers.hasOwnProperty(key)) {
+                    xhr.setRequestHeader(key, headers[key]);
+                }
+            }
+        } else if (options.headers && !isEmpty(options.headers)) {
+            throw new Error("Headers cannot be set on an XDomainRequest object");
+        }
+        if ("responseType" in options) {
+            xhr.responseType = options.responseType;
+        }
+        if ("beforeSend" in options && typeof options.beforeSend === "function") {
+            options.beforeSend(xhr);
+        } // Microsoft Edge browser sends "undefined" when send is called with undefined value.
+        // XMLHttpRequest spec says to pass null as body to indicate no body
+        // See https://github.com/naugtur/xhr/issues/100.
+
+        xhr.send(body || null);
+        return xhr;
+    }
+    function getXml(xhr) {
+        // xhr.responseXML will throw Exception "InvalidStateError" or "DOMException"
+        // See https://developer.mozilla.org/en-US/docs/Web/API/XMLHttpRequest/responseXML.
+        try {
+            if (xhr.responseType === "document") {
+                return xhr.responseXML;
+            }
+            var firefoxBugTakenEffect = xhr.responseXML && xhr.responseXML.documentElement.nodeName === "parsererror";
+            if (xhr.responseType === "" && !firefoxBugTakenEffect) {
+                return xhr.responseXML;
+            }
+        } catch (e) {}
+        return null;
+    }
+    function noop$1() {}
+    lib.default = default_1;
+
+    /**
+     * @file text-track.js
+     */
+
+    /**
+     * Takes a webvtt file contents and parses it into cues
+     *
+     * @param {string} srcContent
+     *        webVTT file contents
+     *
+     * @param {TextTrack} track
+     *        TextTrack to add cues to. Cues come from the srcContent.
+     *
+     * @private
+     */
+    const parseCues = function (srcContent, track) {
+        const parser = new window.WebVTT.Parser(window, window.vttjs, window.WebVTT.StringDecoder());
+        const errors = [];
+        parser.oncue = function (cue) {
+            track.addCue(cue);
+        };
+        parser.onparsingerror = function (error) {
+            errors.push(error);
+        };
+        parser.onflush = function () {
+            track.trigger({
+                type: 'loadeddata',
+                target: track
+            });
+        };
+        parser.parse(srcContent);
+        if (errors.length > 0) {
+            if (window.console && window.console.groupCollapsed) {
+                window.console.groupCollapsed(`Text Track parsing errors for ${track.src}`);
+            }
+            errors.forEach(error => log$1.error(error));
+            if (window.console && window.console.groupEnd) {
+                window.console.groupEnd();
+            }
+        }
+        parser.flush();
+    };
+
+    /**
+     * Load a `TextTrack` from a specified url.
+     *
+     * @param {string} src
+     *        Url to load track from.
+     *
+     * @param {TextTrack} track
+     *        Track to add cues to. Comes from the content at the end of `url`.
+     *
+     * @private
+     */
+    const loadTrack = function (src, track) {
+        const opts = {
+            uri: src
+        };
+        const crossOrigin = isCrossOrigin(src);
+        if (crossOrigin) {
+            opts.cors = crossOrigin;
+        }
+        const withCredentials = track.tech_.crossOrigin() === 'use-credentials';
+        if (withCredentials) {
+            opts.withCredentials = withCredentials;
+        }
+        lib(opts, bind_(this, function (err, response, responseBody) {
+            if (err) {
+                return log$1.error(err, response);
+            }
+            track.loaded_ = true;
+
+            // Make sure that vttjs has loaded, otherwise, wait till it finished loading
+            // NOTE: this is only used for the alt/video.novtt.js build
+            if (typeof window.WebVTT !== 'function') {
+                if (track.tech_) {
+                    // to prevent use before define eslint error, we define loadHandler
+                    // as a let here
+                    track.tech_.any(['vttjsloaded', 'vttjserror'], event => {
+                        if (event.type === 'vttjserror') {
+                            log$1.error(`vttjs failed to load, stopping trying to process ${track.src}`);
+                            return;
+                        }
+                        return parseCues(responseBody, track);
+                    });
+                }
+            } else {
+                parseCues(responseBody, track);
+            }
+        }));
+    };
+
+    /**
+     * A representation of a single `TextTrack`.
+     *
+     * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#texttrack}
+     * @extends Track
+     */
+    class TextTrack extends Track {
+        /**
+         * Create an instance of this class.
+         *
+         * @param {Object} options={}
+         *        Object of option names and values
+         *
+         * @param { import('../tech/tech').default } options.tech
+         *        A reference to the tech that owns this TextTrack.
+         *
+         * @param {TextTrack~Kind} [options.kind='subtitles']
+         *        A valid text track kind.
+         *
+         * @param {TextTrack~Mode} [options.mode='disabled']
+         *        A valid text track mode.
+         *
+         * @param {string} [options.id='vjs_track_' + Guid.newGUID()]
+         *        A unique id for this TextTrack.
+         *
+         * @param {string} [options.label='']
+         *        The menu label for this track.
+         *
+         * @param {string} [options.language='']
+         *        A valid two character language code.
+         *
+         * @param {string} [options.srclang='']
+         *        A valid two character language code. An alternative, but deprioritized
+         *        version of `options.language`
+         *
+         * @param {string} [options.src]
+         *        A url to TextTrack cues.
+         *
+         * @param {boolean} [options.default]
+         *        If this track should default to on or off.
+         */
+        constructor(options = {}) {
+            if (!options.tech) {
+                throw new Error('A tech was not provided.');
+            }
+            const settings = merge$2(options, {
+                kind: TextTrackKind[options.kind] || 'subtitles',
+                language: options.language || options.srclang || ''
+            });
+            let mode = TextTrackMode[settings.mode] || 'disabled';
+            const default_ = settings.default;
+            if (settings.kind === 'metadata' || settings.kind === 'chapters') {
+                mode = 'hidden';
+            }
+            super(settings);
+            this.tech_ = settings.tech;
+            this.cues_ = [];
+            this.activeCues_ = [];
+            this.preload_ = this.tech_.preloadTextTracks !== false;
+            const cues = new TextTrackCueList(this.cues_);
+            const activeCues = new TextTrackCueList(this.activeCues_);
+            let changed = false;
+            this.timeupdateHandler = bind_(this, function (event = {}) {
+                if (this.tech_.isDisposed()) {
+                    return;
+                }
+                if (!this.tech_.isReady_) {
+                    if (event.type !== 'timeupdate') {
+                        this.rvf_ = this.tech_.requestVideoFrameCallback(this.timeupdateHandler);
+                    }
+                    return;
+                }
+
+                // Accessing this.activeCues for the side-effects of updating itself
+                // due to its nature as a getter function. Do not remove or cues will
+                // stop updating!
+                // Use the setter to prevent deletion from uglify (pure_getters rule)
+                this.activeCues = this.activeCues;
+                if (changed) {
+                    this.trigger('cuechange');
+                    changed = false;
+                }
+                if (event.type !== 'timeupdate') {
+                    this.rvf_ = this.tech_.requestVideoFrameCallback(this.timeupdateHandler);
+                }
+            });
+            const disposeHandler = () => {
+                this.stopTracking();
+            };
+            this.tech_.one('dispose', disposeHandler);
+            if (mode !== 'disabled') {
+                this.startTracking();
+            }
+            Object.defineProperties(this, {
+                /**
+                 * @memberof TextTrack
+                 * @member {boolean} default
+                 *         If this track was set to be on or off by default. Cannot be changed after
+                 *         creation.
+                 * @instance
+                 *
+                 * @readonly
+                 */
+                default: {
+                    get() {
+                        return default_;
+                    },
+                    set() {}
+                },
+                /**
+                 * @memberof TextTrack
+                 * @member {string} mode
+                 *         Set the mode of this TextTrack to a valid {@link TextTrack~Mode}. Will
+                 *         not be set if setting to an invalid mode.
+                 * @instance
+                 *
+                 * @fires TextTrack#modechange
+                 */
+                mode: {
+                    get() {
+                        return mode;
+                    },
+                    set(newMode) {
+                        if (!TextTrackMode[newMode]) {
+                            return;
+                        }
+                        if (mode === newMode) {
+                            return;
+                        }
+                        mode = newMode;
+                        if (!this.preload_ && mode !== 'disabled' && this.cues.length === 0) {
+                            // On-demand load.
+                            loadTrack(this.src, this);
+                        }
+                        this.stopTracking();
+                        if (mode !== 'disabled') {
+                            this.startTracking();
+                        }
+                        /**
+                         * An event that fires when mode changes on this track. This allows
+                         * the TextTrackList that holds this track to act accordingly.
+                         *
+                         * > Note: This is not part of the spec!
+                         *
+                         * @event TextTrack#modechange
+                         * @type {Event}
+                         */
+                        this.trigger('modechange');
+                    }
+                },
+                /**
+                 * @memberof TextTrack
+                 * @member {TextTrackCueList} cues
+                 *         The text track cue list for this TextTrack.
+                 * @instance
+                 */
+                cues: {
+                    get() {
+                        if (!this.loaded_) {
+                            return null;
+                        }
+                        return cues;
+                    },
+                    set() {}
+                },
+                /**
+                 * @memberof TextTrack
+                 * @member {TextTrackCueList} activeCues
+                 *         The list text track cues that are currently active for this TextTrack.
+                 * @instance
+                 */
+                activeCues: {
+                    get() {
+                        if (!this.loaded_) {
+                            return null;
+                        }
+
+                        // nothing to do
+                        if (this.cues.length === 0) {
+                            return activeCues;
+                        }
+                        const ct = this.tech_.currentTime();
+                        const active = [];
+                        for (let i = 0, l = this.cues.length; i < l; i++) {
+                            const cue = this.cues[i];
+                            if (cue.startTime <= ct && cue.endTime >= ct) {
+                                active.push(cue);
+                            }
+                        }
+                        changed = false;
+                        if (active.length !== this.activeCues_.length) {
+                            changed = true;
+                        } else {
+                            for (let i = 0; i < active.length; i++) {
+                                if (this.activeCues_.indexOf(active[i]) === -1) {
+                                    changed = true;
+                                }
+                            }
+                        }
+                        this.activeCues_ = active;
+                        activeCues.setCues_(this.activeCues_);
+                        return activeCues;
+                    },
+                    // /!\ Keep this setter empty (see the timeupdate handler above)
+                    set() {}
+                }
+            });
+            if (settings.src) {
+                this.src = settings.src;
+                if (!this.preload_) {
+                    // Tracks will load on-demand.
+                    // Act like we're loaded for other purposes.
+                    this.loaded_ = true;
+                }
+                if (this.preload_ || settings.kind !== 'subtitles' && settings.kind !== 'captions') {
+                    loadTrack(this.src, this);
+                }
+            } else {
+                this.loaded_ = true;
+            }
+        }
+        startTracking() {
+            // More precise cues based on requestVideoFrameCallback with a requestAnimationFram fallback
+            this.rvf_ = this.tech_.requestVideoFrameCallback(this.timeupdateHandler);
+            // Also listen to timeupdate in case rVFC/rAF stops (window in background, audio in video el)
+            this.tech_.on('timeupdate', this.timeupdateHandler);
+        }
+        stopTracking() {
+            if (this.rvf_) {
+                this.tech_.cancelVideoFrameCallback(this.rvf_);
+                this.rvf_ = undefined;
+            }
+            this.tech_.off('timeupdate', this.timeupdateHandler);
+        }
+
+        /**
+         * Add a cue to the internal list of cues.
+         *
+         * @param {TextTrack~Cue} cue
+         *        The cue to add to our internal list
+         */
+        addCue(originalCue) {
+            let cue = originalCue;
+            if (window.vttjs && !(originalCue instanceof window.vttjs.VTTCue)) {
+                cue = new window.vttjs.VTTCue(originalCue.startTime, originalCue.endTime, originalCue.text);
+                for (const prop in originalCue) {
+                    if (!(prop in cue)) {
+                        cue[prop] = originalCue[prop];
+                    }
+                }
+
+                // make sure that `id` is copied over
+                cue.id = originalCue.id;
+                cue.originalCue_ = originalCue;
+            }
+            const tracks = this.tech_.textTracks();
+            for (let i = 0; i < tracks.length; i++) {
+                if (tracks[i] !== this) {
+                    tracks[i].removeCue(cue);
+                }
+            }
+            this.cues_.push(cue);
+            this.cues.setCues_(this.cues_);
+        }
+
+        /**
+         * Remove a cue from our internal list
+         *
+         * @param {TextTrack~Cue} removeCue
+         *        The cue to remove from our internal list
+         */
+        removeCue(removeCue) {
+            let i = this.cues_.length;
+            while (i--) {
+                const cue = this.cues_[i];
+                if (cue === removeCue || cue.originalCue_ && cue.originalCue_ === removeCue) {
+                    this.cues_.splice(i, 1);
+                    this.cues.setCues_(this.cues_);
+                    break;
+                }
+            }
+        }
     }
 
-    return HTMLTrackElement;
-  }(EventTarget$2);
+    /**
+     * cuechange - One or more cues in the track have become active or stopped being active.
+     */
+    TextTrack.prototype.allowedEvents_ = {
+        cuechange: 'cuechange'
+    };
 
-  HTMLTrackElement.prototype.allowedEvents_ = {
-    load: 'load'
-  };
-  HTMLTrackElement.NONE = NONE;
-  HTMLTrackElement.LOADING = LOADING;
-  HTMLTrackElement.LOADED = LOADED;
-  HTMLTrackElement.ERROR = ERROR;
+    /**
+     * A representation of a single `AudioTrack`. If it is part of an {@link AudioTrackList}
+     * only one `AudioTrack` in the list will be enabled at a time.
+     *
+     * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#audiotrack}
+     * @extends Track
+     */
+    class AudioTrack extends Track {
+        /**
+         * Create an instance of this class.
+         *
+         * @param {Object} [options={}]
+         *        Object of option names and values
+         *
+         * @param {AudioTrack~Kind} [options.kind='']
+         *        A valid audio track kind
+         *
+         * @param {string} [options.id='vjs_track_' + Guid.newGUID()]
+         *        A unique id for this AudioTrack.
+         *
+         * @param {string} [options.label='']
+         *        The menu label for this track.
+         *
+         * @param {string} [options.language='']
+         *        A valid two character language code.
+         *
+         * @param {boolean} [options.enabled]
+         *        If this track is the one that is currently playing. If this track is part of
+         *        an {@link AudioTrackList}, only one {@link AudioTrack} will be enabled.
+         */
+        constructor(options = {}) {
+            const settings = merge$2(options, {
+                kind: AudioTrackKind[options.kind] || ''
+            });
+            super(settings);
+            let enabled = false;
 
-  /*
+            /**
+             * @memberof AudioTrack
+             * @member {boolean} enabled
+             *         If this `AudioTrack` is enabled or not. When setting this will
+             *         fire {@link AudioTrack#enabledchange} if the state of enabled is changed.
+             * @instance
+             *
+             * @fires VideoTrack#selectedchange
+             */
+            Object.defineProperty(this, 'enabled', {
+                get() {
+                    return enabled;
+                },
+                set(newEnabled) {
+                    // an invalid or unchanged value
+                    if (typeof newEnabled !== 'boolean' || newEnabled === enabled) {
+                        return;
+                    }
+                    enabled = newEnabled;
+
+                    /**
+                     * An event that fires when enabled changes on this track. This allows
+                     * the AudioTrackList that holds this track to act accordingly.
+                     *
+                     * > Note: This is not part of the spec! Native tracks will do
+                     *         this internally without an event.
+                     *
+                     * @event AudioTrack#enabledchange
+                     * @type {Event}
+                     */
+                    this.trigger('enabledchange');
+                }
+            });
+
+            // if the user sets this track to selected then
+            // set selected to that true value otherwise
+            // we keep it false
+            if (settings.enabled) {
+                this.enabled = settings.enabled;
+            }
+            this.loaded_ = true;
+        }
+    }
+
+    /**
+     * A representation of a single `VideoTrack`.
+     *
+     * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#videotrack}
+     * @extends Track
+     */
+    class VideoTrack extends Track {
+        /**
+         * Create an instance of this class.
+         *
+         * @param {Object} [options={}]
+         *        Object of option names and values
+         *
+         * @param {string} [options.kind='']
+         *        A valid {@link VideoTrack~Kind}
+         *
+         * @param {string} [options.id='vjs_track_' + Guid.newGUID()]
+         *        A unique id for this AudioTrack.
+         *
+         * @param {string} [options.label='']
+         *        The menu label for this track.
+         *
+         * @param {string} [options.language='']
+         *        A valid two character language code.
+         *
+         * @param {boolean} [options.selected]
+         *        If this track is the one that is currently playing.
+         */
+        constructor(options = {}) {
+            const settings = merge$2(options, {
+                kind: VideoTrackKind[options.kind] || ''
+            });
+            super(settings);
+            let selected = false;
+
+            /**
+             * @memberof VideoTrack
+             * @member {boolean} selected
+             *         If this `VideoTrack` is selected or not. When setting this will
+             *         fire {@link VideoTrack#selectedchange} if the state of selected changed.
+             * @instance
+             *
+             * @fires VideoTrack#selectedchange
+             */
+            Object.defineProperty(this, 'selected', {
+                get() {
+                    return selected;
+                },
+                set(newSelected) {
+                    // an invalid or unchanged value
+                    if (typeof newSelected !== 'boolean' || newSelected === selected) {
+                        return;
+                    }
+                    selected = newSelected;
+
+                    /**
+                     * An event that fires when selected changes on this track. This allows
+                     * the VideoTrackList that holds this track to act accordingly.
+                     *
+                     * > Note: This is not part of the spec! Native tracks will do
+                     *         this internally without an event.
+                     *
+                     * @event VideoTrack#selectedchange
+                     * @type {Event}
+                     */
+                    this.trigger('selectedchange');
+                }
+            });
+
+            // if the user sets this track to selected then
+            // set selected to that true value otherwise
+            // we keep it false
+            if (settings.selected) {
+                this.selected = settings.selected;
+            }
+        }
+    }
+
+    /**
+     * @file html-track-element.js
+     */
+
+    /**
+     * A single track represented in the DOM.
+     *
+     * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#htmltrackelement}
+     * @extends EventTarget
+     */
+    class HTMLTrackElement extends EventTarget$2 {
+        /**
+         * Create an instance of this class.
+         *
+         * @param {Object} options={}
+         *        Object of option names and values
+         *
+         * @param { import('../tech/tech').default } options.tech
+         *        A reference to the tech that owns this HTMLTrackElement.
+         *
+         * @param {TextTrack~Kind} [options.kind='subtitles']
+         *        A valid text track kind.
+         *
+         * @param {TextTrack~Mode} [options.mode='disabled']
+         *        A valid text track mode.
+         *
+         * @param {string} [options.id='vjs_track_' + Guid.newGUID()]
+         *        A unique id for this TextTrack.
+         *
+         * @param {string} [options.label='']
+         *        The menu label for this track.
+         *
+         * @param {string} [options.language='']
+         *        A valid two character language code.
+         *
+         * @param {string} [options.srclang='']
+         *        A valid two character language code. An alternative, but deprioritized
+         *        version of `options.language`
+         *
+         * @param {string} [options.src]
+         *        A url to TextTrack cues.
+         *
+         * @param {boolean} [options.default]
+         *        If this track should default to on or off.
+         */
+        constructor(options = {}) {
+            super();
+            let readyState;
+            const track = new TextTrack(options);
+            this.kind = track.kind;
+            this.src = track.src;
+            this.srclang = track.language;
+            this.label = track.label;
+            this.default = track.default;
+            Object.defineProperties(this, {
+                /**
+                 * @memberof HTMLTrackElement
+                 * @member {HTMLTrackElement~ReadyState} readyState
+                 *         The current ready state of the track element.
+                 * @instance
+                 */
+                readyState: {
+                    get() {
+                        return readyState;
+                    }
+                },
+                /**
+                 * @memberof HTMLTrackElement
+                 * @member {TextTrack} track
+                 *         The underlying TextTrack object.
+                 * @instance
+                 *
+                 */
+                track: {
+                    get() {
+                        return track;
+                    }
+                }
+            });
+            readyState = HTMLTrackElement.NONE;
+
+            /**
+             * @listens TextTrack#loadeddata
+             * @fires HTMLTrackElement#load
+             */
+            track.addEventListener('loadeddata', () => {
+                readyState = HTMLTrackElement.LOADED;
+                this.trigger({
+                    type: 'load',
+                    target: this
+                });
+            });
+        }
+    }
+    HTMLTrackElement.prototype.allowedEvents_ = {
+        load: 'load'
+    };
+
+    /**
+     * The text track not loaded state.
+     *
+     * @type {number}
+     * @static
+     */
+    HTMLTrackElement.NONE = 0;
+
+    /**
+     * The text track loading state.
+     *
+     * @type {number}
+     * @static
+     */
+    HTMLTrackElement.LOADING = 1;
+
+    /**
+     * The text track loaded state.
+     *
+     * @type {number}
+     * @static
+     */
+    HTMLTrackElement.LOADED = 2;
+
+    /**
+     * The text track failed to load state.
+     *
+     * @type {number}
+     * @static
+     */
+    HTMLTrackElement.ERROR = 3;
+
+    /*
    * This file contains all track properties that are used in
    * player.js, tech.js, html5.js and possibly other techs in the future.
    */
 
-  var NORMAL = {
-    audio: {
-      ListClass: AudioTrackList,
-      TrackClass: AudioTrack,
-      capitalName: 'Audio'
-    },
-    video: {
-      ListClass: VideoTrackList,
-      TrackClass: VideoTrack,
-      capitalName: 'Video'
-    },
-    text: {
-      ListClass: TextTrackList,
-      TrackClass: TextTrack,
-      capitalName: 'Text'
-    }
-  };
-  Object.keys(NORMAL).forEach(function (type) {
-    NORMAL[type].getterName = type + "Tracks";
-    NORMAL[type].privateName = type + "Tracks_";
-  });
-  var REMOTE = {
-    remoteText: {
-      ListClass: TextTrackList,
-      TrackClass: TextTrack,
-      capitalName: 'RemoteText',
-      getterName: 'remoteTextTracks',
-      privateName: 'remoteTextTracks_'
-    },
-    remoteTextEl: {
-      ListClass: HtmlTrackElementList,
-      TrackClass: HTMLTrackElement,
-      capitalName: 'RemoteTextTrackEls',
-      getterName: 'remoteTextTrackEls',
-      privateName: 'remoteTextTrackEls_'
-    }
-  };
-
-  var ALL = _extends_1({}, NORMAL, REMOTE);
-
-  REMOTE.names = Object.keys(REMOTE);
-  NORMAL.names = Object.keys(NORMAL);
-  ALL.names = [].concat(REMOTE.names).concat(NORMAL.names);
-
-  var minDoc = {};
-
-  var topLevel = typeof commonjsGlobal !== 'undefined' ? commonjsGlobal : typeof window !== 'undefined' ? window : {};
-  var doccy;
-
-  if (typeof document !== 'undefined') {
-    doccy = document;
-  } else {
-    doccy = topLevel['__GLOBAL_DOCUMENT_CACHE@4'];
-
-    if (!doccy) {
-      doccy = topLevel['__GLOBAL_DOCUMENT_CACHE@4'] = minDoc;
-    }
-  }
-
-  var document_1 = doccy;
-
-  /**
-   * Copyright 2013 vtt.js Contributors
-   *
-   * Licensed under the Apache License, Version 2.0 (the "License");
-   * you may not use this file except in compliance with the License.
-   * You may obtain a copy of the License at
-   *
-   *   http://www.apache.org/licenses/LICENSE-2.0
-   *
-   * Unless required by applicable law or agreed to in writing, software
-   * distributed under the License is distributed on an "AS IS" BASIS,
-   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-   * See the License for the specific language governing permissions and
-   * limitations under the License.
-   */
-
-  /* -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-
-  /* vim: set shiftwidth=2 tabstop=2 autoindent cindent expandtab: */
-
-  var _objCreate = Object.create || function () {
-    function F() {}
-
-    return function (o) {
-      if (arguments.length !== 1) {
-        throw new Error('Object.create shim only accepts one parameter.');
-      }
-
-      F.prototype = o;
-      return new F();
+    const NORMAL = {
+        audio: {
+            ListClass: AudioTrackList,
+            TrackClass: AudioTrack,
+            capitalName: 'Audio'
+        },
+        video: {
+            ListClass: VideoTrackList,
+            TrackClass: VideoTrack,
+            capitalName: 'Video'
+        },
+        text: {
+            ListClass: TextTrackList,
+            TrackClass: TextTrack,
+            capitalName: 'Text'
+        }
     };
-  }(); // Creates a new ParserError object from an errorData object. The errorData
-  // object should have default code and message properties. The default message
-  // property can be overriden by passing in a message parameter.
-  // See ParsingError.Errors below for acceptable errors.
-
-
-  function ParsingError(errorData, message) {
-    this.name = "ParsingError";
-    this.code = errorData.code;
-    this.message = message || errorData.message;
-  }
-
-  ParsingError.prototype = _objCreate(Error.prototype);
-  ParsingError.prototype.constructor = ParsingError; // ParsingError metadata for acceptable ParsingErrors.
-
-  ParsingError.Errors = {
-    BadSignature: {
-      code: 0,
-      message: "Malformed WebVTT signature."
-    },
-    BadTimeStamp: {
-      code: 1,
-      message: "Malformed time stamp."
-    }
-  }; // Try to parse input as a time stamp.
-
-  function parseTimeStamp(input) {
-    function computeSeconds(h, m, s, f) {
-      return (h | 0) * 3600 + (m | 0) * 60 + (s | 0) + (f | 0) / 1000;
-    }
-
-    var m = input.match(/^(\d+):(\d{1,2})(:\d{1,2})?\.(\d{3})/);
-
-    if (!m) {
-      return null;
-    }
-
-    if (m[3]) {
-      // Timestamp takes the form of [hours]:[minutes]:[seconds].[milliseconds]
-      return computeSeconds(m[1], m[2], m[3].replace(":", ""), m[4]);
-    } else if (m[1] > 59) {
-      // Timestamp takes the form of [hours]:[minutes].[milliseconds]
-      // First position is hours as it's over 59.
-      return computeSeconds(m[1], m[2], 0, m[4]);
-    } else {
-      // Timestamp takes the form of [minutes]:[seconds].[milliseconds]
-      return computeSeconds(0, m[1], m[2], m[4]);
-    }
-  } // A settings object holds key/value pairs and will ignore anything but the first
-  // assignment to a specific key.
-
-
-  function Settings() {
-    this.values = _objCreate(null);
-  }
-
-  Settings.prototype = {
-    // Only accept the first assignment to any key.
-    set: function set(k, v) {
-      if (!this.get(k) && v !== "") {
-        this.values[k] = v;
-      }
-    },
-    // Return the value for a key, or a default value.
-    // If 'defaultKey' is passed then 'dflt' is assumed to be an object with
-    // a number of possible default values as properties where 'defaultKey' is
-    // the key of the property that will be chosen; otherwise it's assumed to be
-    // a single value.
-    get: function get(k, dflt, defaultKey) {
-      if (defaultKey) {
-        return this.has(k) ? this.values[k] : dflt[defaultKey];
-      }
-
-      return this.has(k) ? this.values[k] : dflt;
-    },
-    // Check whether we have a value for a key.
-    has: function has(k) {
-      return k in this.values;
-    },
-    // Accept a setting if its one of the given alternatives.
-    alt: function alt(k, v, a) {
-      for (var n = 0; n < a.length; ++n) {
-        if (v === a[n]) {
-          this.set(k, v);
-          break;
-        }
-      }
-    },
-    // Accept a setting if its a valid (signed) integer.
-    integer: function integer(k, v) {
-      if (/^-?\d+$/.test(v)) {
-        // integer
-        this.set(k, parseInt(v, 10));
-      }
-    },
-    // Accept a setting if its a valid percentage.
-    percent: function percent(k, v) {
-
-      if (v.match(/^([\d]{1,3})(\.[\d]*)?%$/)) {
-        v = parseFloat(v);
-
-        if (v >= 0 && v <= 100) {
-          this.set(k, v);
-          return true;
-        }
-      }
-
-      return false;
-    }
-  }; // Helper function to parse input into groups separated by 'groupDelim', and
-  // interprete each group as a key/value pair separated by 'keyValueDelim'.
-
-  function parseOptions(input, callback, keyValueDelim, groupDelim) {
-    var groups = groupDelim ? input.split(groupDelim) : [input];
-
-    for (var i in groups) {
-      if (typeof groups[i] !== "string") {
-        continue;
-      }
-
-      var kv = groups[i].split(keyValueDelim);
-
-      if (kv.length !== 2) {
-        continue;
-      }
-
-      var k = kv[0].trim();
-      var v = kv[1].trim();
-      callback(k, v);
-    }
-  }
-
-  function parseCue(input, cue, regionList) {
-    // Remember the original input if we need to throw an error.
-    var oInput = input; // 4.1 WebVTT timestamp
-
-    function consumeTimeStamp() {
-      var ts = parseTimeStamp(input);
-
-      if (ts === null) {
-        throw new ParsingError(ParsingError.Errors.BadTimeStamp, "Malformed timestamp: " + oInput);
-      } // Remove time stamp from input.
-
-
-      input = input.replace(/^[^\sa-zA-Z-]+/, "");
-      return ts;
-    } // 4.4.2 WebVTT cue settings
-
-
-    function consumeCueSettings(input, cue) {
-      var settings = new Settings();
-      parseOptions(input, function (k, v) {
-        switch (k) {
-          case "region":
-            // Find the last region we parsed with the same region id.
-            for (var i = regionList.length - 1; i >= 0; i--) {
-              if (regionList[i].id === v) {
-                settings.set(k, regionList[i].region);
-                break;
-              }
-            }
-
-            break;
-
-          case "vertical":
-            settings.alt(k, v, ["rl", "lr"]);
-            break;
-
-          case "line":
-            var vals = v.split(","),
-                vals0 = vals[0];
-            settings.integer(k, vals0);
-            settings.percent(k, vals0) ? settings.set("snapToLines", false) : null;
-            settings.alt(k, vals0, ["auto"]);
-
-            if (vals.length === 2) {
-              settings.alt("lineAlign", vals[1], ["start", "center", "end"]);
-            }
-
-            break;
-
-          case "position":
-            vals = v.split(",");
-            settings.percent(k, vals[0]);
-
-            if (vals.length === 2) {
-              settings.alt("positionAlign", vals[1], ["start", "center", "end"]);
-            }
-
-            break;
-
-          case "size":
-            settings.percent(k, v);
-            break;
-
-          case "align":
-            settings.alt(k, v, ["start", "center", "end", "left", "right"]);
-            break;
-        }
-      }, /:/, /\s/); // Apply default values for any missing fields.
-
-      cue.region = settings.get("region", null);
-      cue.vertical = settings.get("vertical", "");
-
-      try {
-        cue.line = settings.get("line", "auto");
-      } catch (e) {}
-
-      cue.lineAlign = settings.get("lineAlign", "start");
-      cue.snapToLines = settings.get("snapToLines", true);
-      cue.size = settings.get("size", 100); // Safari still uses the old middle value and won't accept center
-
-      try {
-        cue.align = settings.get("align", "center");
-      } catch (e) {
-        cue.align = settings.get("align", "middle");
-      }
-
-      try {
-        cue.position = settings.get("position", "auto");
-      } catch (e) {
-        cue.position = settings.get("position", {
-          start: 0,
-          left: 0,
-          center: 50,
-          middle: 50,
-          end: 100,
-          right: 100
-        }, cue.align);
-      }
-
-      cue.positionAlign = settings.get("positionAlign", {
-        start: "start",
-        left: "start",
-        center: "center",
-        middle: "center",
-        end: "end",
-        right: "end"
-      }, cue.align);
-    }
-
-    function skipWhitespace() {
-      input = input.replace(/^\s+/, "");
-    } // 4.1 WebVTT cue timings.
-
-
-    skipWhitespace();
-    cue.startTime = consumeTimeStamp(); // (1) collect cue start time
-
-    skipWhitespace();
-
-    if (input.substr(0, 3) !== "-->") {
-      // (3) next characters must match "-->"
-      throw new ParsingError(ParsingError.Errors.BadTimeStamp, "Malformed time stamp (time stamps must be separated by '-->'): " + oInput);
-    }
-
-    input = input.substr(3);
-    skipWhitespace();
-    cue.endTime = consumeTimeStamp(); // (5) collect cue end time
-    // 4.1 WebVTT cue settings list.
-
-    skipWhitespace();
-    consumeCueSettings(input, cue);
-  } // When evaluating this file as part of a Webpack bundle for server
-  // side rendering, `document` is an empty object.
-
-
-  var TEXTAREA_ELEMENT = document_1.createElement && document_1.createElement("textarea");
-  var TAG_NAME = {
-    c: "span",
-    i: "i",
-    b: "b",
-    u: "u",
-    ruby: "ruby",
-    rt: "rt",
-    v: "span",
-    lang: "span"
-  }; // 5.1 default text color
-  // 5.2 default text background color is equivalent to text color with bg_ prefix
-
-  var DEFAULT_COLOR_CLASS = {
-    white: 'rgba(255,255,255,1)',
-    lime: 'rgba(0,255,0,1)',
-    cyan: 'rgba(0,255,255,1)',
-    red: 'rgba(255,0,0,1)',
-    yellow: 'rgba(255,255,0,1)',
-    magenta: 'rgba(255,0,255,1)',
-    blue: 'rgba(0,0,255,1)',
-    black: 'rgba(0,0,0,1)'
-  };
-  var TAG_ANNOTATION = {
-    v: "title",
-    lang: "lang"
-  };
-  var NEEDS_PARENT = {
-    rt: "ruby"
-  }; // Parse content into a document fragment.
-
-  function parseContent(window, input) {
-    function nextToken() {
-      // Check for end-of-string.
-      if (!input) {
-        return null;
-      } // Consume 'n' characters from the input.
-
-
-      function consume(result) {
-        input = input.substr(result.length);
-        return result;
-      }
-
-      var m = input.match(/^([^<]*)(<[^>]*>?)?/); // If there is some text before the next tag, return it, otherwise return
-      // the tag.
-
-      return consume(m[1] ? m[1] : m[2]);
-    }
-
-    function unescape(s) {
-      TEXTAREA_ELEMENT.innerHTML = s;
-      s = TEXTAREA_ELEMENT.textContent;
-      TEXTAREA_ELEMENT.textContent = "";
-      return s;
-    }
-
-    function shouldAdd(current, element) {
-      return !NEEDS_PARENT[element.localName] || NEEDS_PARENT[element.localName] === current.localName;
-    } // Create an element for this tag.
-
-
-    function createElement(type, annotation) {
-      var tagName = TAG_NAME[type];
-
-      if (!tagName) {
-        return null;
-      }
-
-      var element = window.document.createElement(tagName);
-      var name = TAG_ANNOTATION[type];
-
-      if (name && annotation) {
-        element[name] = annotation.trim();
-      }
-
-      return element;
-    }
-
-    var rootDiv = window.document.createElement("div"),
-        current = rootDiv,
-        t,
-        tagStack = [];
-
-    while ((t = nextToken()) !== null) {
-      if (t[0] === '<') {
-        if (t[1] === "/") {
-          // If the closing tag matches, move back up to the parent node.
-          if (tagStack.length && tagStack[tagStack.length - 1] === t.substr(2).replace(">", "")) {
-            tagStack.pop();
-            current = current.parentNode;
-          } // Otherwise just ignore the end tag.
-
-
-          continue;
-        }
-
-        var ts = parseTimeStamp(t.substr(1, t.length - 2));
-        var node;
-
-        if (ts) {
-          // Timestamps are lead nodes as well.
-          node = window.document.createProcessingInstruction("timestamp", ts);
-          current.appendChild(node);
-          continue;
-        }
-
-        var m = t.match(/^<([^.\s/0-9>]+)(\.[^\s\\>]+)?([^>\\]+)?(\\?)>?$/); // If we can't parse the tag, skip to the next tag.
-
-        if (!m) {
-          continue;
-        } // Try to construct an element, and ignore the tag if we couldn't.
-
-
-        node = createElement(m[1], m[3]);
-
-        if (!node) {
-          continue;
-        } // Determine if the tag should be added based on the context of where it
-        // is placed in the cuetext.
-
-
-        if (!shouldAdd(current, node)) {
-          continue;
-        } // Set the class list (as a list of classes, separated by space).
-
-
-        if (m[2]) {
-          var classes = m[2].split('.');
-          classes.forEach(function (cl) {
-            var bgColor = /^bg_/.test(cl); // slice out `bg_` if it's a background color
-
-            var colorName = bgColor ? cl.slice(3) : cl;
-
-            if (DEFAULT_COLOR_CLASS.hasOwnProperty(colorName)) {
-              var propName = bgColor ? 'background-color' : 'color';
-              var propValue = DEFAULT_COLOR_CLASS[colorName];
-              node.style[propName] = propValue;
-            }
-          });
-          node.className = classes.join(' ');
-        } // Append the node to the current node, and enter the scope of the new
-        // node.
-
-
-        tagStack.push(m[1]);
-        current.appendChild(node);
-        current = node;
-        continue;
-      } // Text nodes are leaf nodes.
-
-
-      current.appendChild(window.document.createTextNode(unescape(t)));
-    }
-
-    return rootDiv;
-  } // This is a list of all the Unicode characters that have a strong
-  // right-to-left category. What this means is that these characters are
-  // written right-to-left for sure. It was generated by pulling all the strong
-  // right-to-left characters out of the Unicode data table. That table can
-  // found at: http://www.unicode.org/Public/UNIDATA/UnicodeData.txt
-
-
-  var strongRTLRanges = [[0x5be, 0x5be], [0x5c0, 0x5c0], [0x5c3, 0x5c3], [0x5c6, 0x5c6], [0x5d0, 0x5ea], [0x5f0, 0x5f4], [0x608, 0x608], [0x60b, 0x60b], [0x60d, 0x60d], [0x61b, 0x61b], [0x61e, 0x64a], [0x66d, 0x66f], [0x671, 0x6d5], [0x6e5, 0x6e6], [0x6ee, 0x6ef], [0x6fa, 0x70d], [0x70f, 0x710], [0x712, 0x72f], [0x74d, 0x7a5], [0x7b1, 0x7b1], [0x7c0, 0x7ea], [0x7f4, 0x7f5], [0x7fa, 0x7fa], [0x800, 0x815], [0x81a, 0x81a], [0x824, 0x824], [0x828, 0x828], [0x830, 0x83e], [0x840, 0x858], [0x85e, 0x85e], [0x8a0, 0x8a0], [0x8a2, 0x8ac], [0x200f, 0x200f], [0xfb1d, 0xfb1d], [0xfb1f, 0xfb28], [0xfb2a, 0xfb36], [0xfb38, 0xfb3c], [0xfb3e, 0xfb3e], [0xfb40, 0xfb41], [0xfb43, 0xfb44], [0xfb46, 0xfbc1], [0xfbd3, 0xfd3d], [0xfd50, 0xfd8f], [0xfd92, 0xfdc7], [0xfdf0, 0xfdfc], [0xfe70, 0xfe74], [0xfe76, 0xfefc], [0x10800, 0x10805], [0x10808, 0x10808], [0x1080a, 0x10835], [0x10837, 0x10838], [0x1083c, 0x1083c], [0x1083f, 0x10855], [0x10857, 0x1085f], [0x10900, 0x1091b], [0x10920, 0x10939], [0x1093f, 0x1093f], [0x10980, 0x109b7], [0x109be, 0x109bf], [0x10a00, 0x10a00], [0x10a10, 0x10a13], [0x10a15, 0x10a17], [0x10a19, 0x10a33], [0x10a40, 0x10a47], [0x10a50, 0x10a58], [0x10a60, 0x10a7f], [0x10b00, 0x10b35], [0x10b40, 0x10b55], [0x10b58, 0x10b72], [0x10b78, 0x10b7f], [0x10c00, 0x10c48], [0x1ee00, 0x1ee03], [0x1ee05, 0x1ee1f], [0x1ee21, 0x1ee22], [0x1ee24, 0x1ee24], [0x1ee27, 0x1ee27], [0x1ee29, 0x1ee32], [0x1ee34, 0x1ee37], [0x1ee39, 0x1ee39], [0x1ee3b, 0x1ee3b], [0x1ee42, 0x1ee42], [0x1ee47, 0x1ee47], [0x1ee49, 0x1ee49], [0x1ee4b, 0x1ee4b], [0x1ee4d, 0x1ee4f], [0x1ee51, 0x1ee52], [0x1ee54, 0x1ee54], [0x1ee57, 0x1ee57], [0x1ee59, 0x1ee59], [0x1ee5b, 0x1ee5b], [0x1ee5d, 0x1ee5d], [0x1ee5f, 0x1ee5f], [0x1ee61, 0x1ee62], [0x1ee64, 0x1ee64], [0x1ee67, 0x1ee6a], [0x1ee6c, 0x1ee72], [0x1ee74, 0x1ee77], [0x1ee79, 0x1ee7c], [0x1ee7e, 0x1ee7e], [0x1ee80, 0x1ee89], [0x1ee8b, 0x1ee9b], [0x1eea1, 0x1eea3], [0x1eea5, 0x1eea9], [0x1eeab, 0x1eebb], [0x10fffd, 0x10fffd]];
-
-  function isStrongRTLChar(charCode) {
-    for (var i = 0; i < strongRTLRanges.length; i++) {
-      var currentRange = strongRTLRanges[i];
-
-      if (charCode >= currentRange[0] && charCode <= currentRange[1]) {
-        return true;
-      }
-    }
-
-    return false;
-  }
-
-  function determineBidi(cueDiv) {
-    var nodeStack = [],
-        text = "",
-        charCode;
-
-    if (!cueDiv || !cueDiv.childNodes) {
-      return "ltr";
-    }
-
-    function pushNodes(nodeStack, node) {
-      for (var i = node.childNodes.length - 1; i >= 0; i--) {
-        nodeStack.push(node.childNodes[i]);
-      }
-    }
-
-    function nextTextNode(nodeStack) {
-      if (!nodeStack || !nodeStack.length) {
-        return null;
-      }
-
-      var node = nodeStack.pop(),
-          text = node.textContent || node.innerText;
-
-      if (text) {
-        // TODO: This should match all unicode type B characters (paragraph
-        // separator characters). See issue #115.
-        var m = text.match(/^.*(\n|\r)/);
-
-        if (m) {
-          nodeStack.length = 0;
-          return m[0];
-        }
-
-        return text;
-      }
-
-      if (node.tagName === "ruby") {
-        return nextTextNode(nodeStack);
-      }
-
-      if (node.childNodes) {
-        pushNodes(nodeStack, node);
-        return nextTextNode(nodeStack);
-      }
-    }
-
-    pushNodes(nodeStack, cueDiv);
-
-    while (text = nextTextNode(nodeStack)) {
-      for (var i = 0; i < text.length; i++) {
-        charCode = text.charCodeAt(i);
-
-        if (isStrongRTLChar(charCode)) {
-          return "rtl";
-        }
-      }
-    }
-
-    return "ltr";
-  }
-
-  function computeLinePos(cue) {
-    if (typeof cue.line === "number" && (cue.snapToLines || cue.line >= 0 && cue.line <= 100)) {
-      return cue.line;
-    }
-
-    if (!cue.track || !cue.track.textTrackList || !cue.track.textTrackList.mediaElement) {
-      return -1;
-    }
-
-    var track = cue.track,
-        trackList = track.textTrackList,
-        count = 0;
-
-    for (var i = 0; i < trackList.length && trackList[i] !== track; i++) {
-      if (trackList[i].mode === "showing") {
-        count++;
-      }
-    }
-
-    return ++count * -1;
-  }
-
-  function StyleBox() {} // Apply styles to a div. If there is no div passed then it defaults to the
-  // div on 'this'.
-
-
-  StyleBox.prototype.applyStyles = function (styles, div) {
-    div = div || this.div;
-
-    for (var prop in styles) {
-      if (styles.hasOwnProperty(prop)) {
-        div.style[prop] = styles[prop];
-      }
-    }
-  };
-
-  StyleBox.prototype.formatStyle = function (val, unit) {
-    return val === 0 ? 0 : val + unit;
-  }; // Constructs the computed display state of the cue (a div). Places the div
-  // into the overlay which should be a block level element (usually a div).
-
-
-  function CueStyleBox(window, cue, styleOptions) {
-    StyleBox.call(this);
-    this.cue = cue; // Parse our cue's text into a DOM tree rooted at 'cueDiv'. This div will
-    // have inline positioning and will function as the cue background box.
-
-    this.cueDiv = parseContent(window, cue.text);
-    var styles = {
-      color: "rgba(255, 255, 255, 1)",
-      backgroundColor: "rgba(0, 0, 0, 0.8)",
-      position: "relative",
-      left: 0,
-      right: 0,
-      top: 0,
-      bottom: 0,
-      display: "inline",
-      writingMode: cue.vertical === "" ? "horizontal-tb" : cue.vertical === "lr" ? "vertical-lr" : "vertical-rl",
-      unicodeBidi: "plaintext"
-    };
-    this.applyStyles(styles, this.cueDiv); // Create an absolutely positioned div that will be used to position the cue
-    // div. Note, all WebVTT cue-setting alignments are equivalent to the CSS
-    // mirrors of them except middle instead of center on Safari.
-
-    this.div = window.document.createElement("div");
-    styles = {
-      direction: determineBidi(this.cueDiv),
-      writingMode: cue.vertical === "" ? "horizontal-tb" : cue.vertical === "lr" ? "vertical-lr" : "vertical-rl",
-      unicodeBidi: "plaintext",
-      textAlign: cue.align === "middle" ? "center" : cue.align,
-      font: styleOptions.font,
-      whiteSpace: "pre-line",
-      position: "absolute"
-    };
-    this.applyStyles(styles);
-    this.div.appendChild(this.cueDiv); // Calculate the distance from the reference edge of the viewport to the text
-    // position of the cue box. The reference edge will be resolved later when
-    // the box orientation styles are applied.
-
-    var textPos = 0;
-
-    switch (cue.positionAlign) {
-      case "start":
-        textPos = cue.position;
-        break;
-
-      case "center":
-        textPos = cue.position - cue.size / 2;
-        break;
-
-      case "end":
-        textPos = cue.position - cue.size;
-        break;
-    } // Horizontal box orientation; textPos is the distance from the left edge of the
-    // area to the left edge of the box and cue.size is the distance extending to
-    // the right from there.
-
-
-    if (cue.vertical === "") {
-      this.applyStyles({
-        left: this.formatStyle(textPos, "%"),
-        width: this.formatStyle(cue.size, "%")
-      }); // Vertical box orientation; textPos is the distance from the top edge of the
-      // area to the top edge of the box and cue.size is the height extending
-      // downwards from there.
-    } else {
-      this.applyStyles({
-        top: this.formatStyle(textPos, "%"),
-        height: this.formatStyle(cue.size, "%")
-      });
-    }
-
-    this.move = function (box) {
-      this.applyStyles({
-        top: this.formatStyle(box.top, "px"),
-        bottom: this.formatStyle(box.bottom, "px"),
-        left: this.formatStyle(box.left, "px"),
-        right: this.formatStyle(box.right, "px"),
-        height: this.formatStyle(box.height, "px"),
-        width: this.formatStyle(box.width, "px")
-      });
-    };
-  }
-
-  CueStyleBox.prototype = _objCreate(StyleBox.prototype);
-  CueStyleBox.prototype.constructor = CueStyleBox; // Represents the co-ordinates of an Element in a way that we can easily
-  // compute things with such as if it overlaps or intersects with another Element.
-  // Can initialize it with either a StyleBox or another BoxPosition.
-
-  function BoxPosition(obj) {
-    // Either a BoxPosition was passed in and we need to copy it, or a StyleBox
-    // was passed in and we need to copy the results of 'getBoundingClientRect'
-    // as the object returned is readonly. All co-ordinate values are in reference
-    // to the viewport origin (top left).
-    var lh, height, width, top;
-
-    if (obj.div) {
-      height = obj.div.offsetHeight;
-      width = obj.div.offsetWidth;
-      top = obj.div.offsetTop;
-      var rects = (rects = obj.div.childNodes) && (rects = rects[0]) && rects.getClientRects && rects.getClientRects();
-      obj = obj.div.getBoundingClientRect(); // In certain cases the outter div will be slightly larger then the sum of
-      // the inner div's lines. This could be due to bold text, etc, on some platforms.
-      // In this case we should get the average line height and use that. This will
-      // result in the desired behaviour.
-
-      lh = rects ? Math.max(rects[0] && rects[0].height || 0, obj.height / rects.length) : 0;
-    }
-
-    this.left = obj.left;
-    this.right = obj.right;
-    this.top = obj.top || top;
-    this.height = obj.height || height;
-    this.bottom = obj.bottom || top + (obj.height || height);
-    this.width = obj.width || width;
-    this.lineHeight = lh !== undefined ? lh : obj.lineHeight;
-  } // Move the box along a particular axis. Optionally pass in an amount to move
-  // the box. If no amount is passed then the default is the line height of the
-  // box.
-
-
-  BoxPosition.prototype.move = function (axis, toMove) {
-    toMove = toMove !== undefined ? toMove : this.lineHeight;
-
-    switch (axis) {
-      case "+x":
-        this.left += toMove;
-        this.right += toMove;
-        break;
-
-      case "-x":
-        this.left -= toMove;
-        this.right -= toMove;
-        break;
-
-      case "+y":
-        this.top += toMove;
-        this.bottom += toMove;
-        break;
-
-      case "-y":
-        this.top -= toMove;
-        this.bottom -= toMove;
-        break;
-    }
-  }; // Check if this box overlaps another box, b2.
-
-
-  BoxPosition.prototype.overlaps = function (b2) {
-    return this.left < b2.right && this.right > b2.left && this.top < b2.bottom && this.bottom > b2.top;
-  }; // Check if this box overlaps any other boxes in boxes.
-
-
-  BoxPosition.prototype.overlapsAny = function (boxes) {
-    for (var i = 0; i < boxes.length; i++) {
-      if (this.overlaps(boxes[i])) {
-        return true;
-      }
-    }
-
-    return false;
-  }; // Check if this box is within another box.
-
-
-  BoxPosition.prototype.within = function (container) {
-    return this.top >= container.top && this.bottom <= container.bottom && this.left >= container.left && this.right <= container.right;
-  }; // Check if this box is entirely within the container or it is overlapping
-  // on the edge opposite of the axis direction passed. For example, if "+x" is
-  // passed and the box is overlapping on the left edge of the container, then
-  // return true.
-
-
-  BoxPosition.prototype.overlapsOppositeAxis = function (container, axis) {
-    switch (axis) {
-      case "+x":
-        return this.left < container.left;
-
-      case "-x":
-        return this.right > container.right;
-
-      case "+y":
-        return this.top < container.top;
-
-      case "-y":
-        return this.bottom > container.bottom;
-    }
-  }; // Find the percentage of the area that this box is overlapping with another
-  // box.
-
-
-  BoxPosition.prototype.intersectPercentage = function (b2) {
-    var x = Math.max(0, Math.min(this.right, b2.right) - Math.max(this.left, b2.left)),
-        y = Math.max(0, Math.min(this.bottom, b2.bottom) - Math.max(this.top, b2.top)),
-        intersectArea = x * y;
-    return intersectArea / (this.height * this.width);
-  }; // Convert the positions from this box to CSS compatible positions using
-  // the reference container's positions. This has to be done because this
-  // box's positions are in reference to the viewport origin, whereas, CSS
-  // values are in referecne to their respective edges.
-
-
-  BoxPosition.prototype.toCSSCompatValues = function (reference) {
-    return {
-      top: this.top - reference.top,
-      bottom: reference.bottom - this.bottom,
-      left: this.left - reference.left,
-      right: reference.right - this.right,
-      height: this.height,
-      width: this.width
-    };
-  }; // Get an object that represents the box's position without anything extra.
-  // Can pass a StyleBox, HTMLElement, or another BoxPositon.
-
-
-  BoxPosition.getSimpleBoxPosition = function (obj) {
-    var height = obj.div ? obj.div.offsetHeight : obj.tagName ? obj.offsetHeight : 0;
-    var width = obj.div ? obj.div.offsetWidth : obj.tagName ? obj.offsetWidth : 0;
-    var top = obj.div ? obj.div.offsetTop : obj.tagName ? obj.offsetTop : 0;
-    obj = obj.div ? obj.div.getBoundingClientRect() : obj.tagName ? obj.getBoundingClientRect() : obj;
-    var ret = {
-      left: obj.left,
-      right: obj.right,
-      top: obj.top || top,
-      height: obj.height || height,
-      bottom: obj.bottom || top + (obj.height || height),
-      width: obj.width || width
-    };
-    return ret;
-  }; // Move a StyleBox to its specified, or next best, position. The containerBox
-  // is the box that contains the StyleBox, such as a div. boxPositions are
-  // a list of other boxes that the styleBox can't overlap with.
-
-
-  function moveBoxToLinePosition(window, styleBox, containerBox, boxPositions) {
-    // Find the best position for a cue box, b, on the video. The axis parameter
-    // is a list of axis, the order of which, it will move the box along. For example:
-    // Passing ["+x", "-x"] will move the box first along the x axis in the positive
-    // direction. If it doesn't find a good position for it there it will then move
-    // it along the x axis in the negative direction.
-    function findBestPosition(b, axis) {
-      var bestPosition,
-          specifiedPosition = new BoxPosition(b),
-          percentage = 1; // Highest possible so the first thing we get is better.
-
-      for (var i = 0; i < axis.length; i++) {
-        while (b.overlapsOppositeAxis(containerBox, axis[i]) || b.within(containerBox) && b.overlapsAny(boxPositions)) {
-          b.move(axis[i]);
-        } // We found a spot where we aren't overlapping anything. This is our
-        // best position.
-
-
-        if (b.within(containerBox)) {
-          return b;
-        }
-
-        var p = b.intersectPercentage(containerBox); // If we're outside the container box less then we were on our last try
-        // then remember this position as the best position.
-
-        if (percentage > p) {
-          bestPosition = new BoxPosition(b);
-          percentage = p;
-        } // Reset the box position to the specified position.
-
-
-        b = new BoxPosition(specifiedPosition);
-      }
-
-      return bestPosition || specifiedPosition;
-    }
-
-    var boxPosition = new BoxPosition(styleBox),
-        cue = styleBox.cue,
-        linePos = computeLinePos(cue),
-        axis = []; // If we have a line number to align the cue to.
-
-    if (cue.snapToLines) {
-      var size;
-
-      switch (cue.vertical) {
-        case "":
-          axis = ["+y", "-y"];
-          size = "height";
-          break;
-
-        case "rl":
-          axis = ["+x", "-x"];
-          size = "width";
-          break;
-
-        case "lr":
-          axis = ["-x", "+x"];
-          size = "width";
-          break;
-      }
-
-      var step = boxPosition.lineHeight,
-          position = step * Math.round(linePos),
-          maxPosition = containerBox[size] + step,
-          initialAxis = axis[0]; // If the specified intial position is greater then the max position then
-      // clamp the box to the amount of steps it would take for the box to
-      // reach the max position.
-
-      if (Math.abs(position) > maxPosition) {
-        position = position < 0 ? -1 : 1;
-        position *= Math.ceil(maxPosition / step) * step;
-      } // If computed line position returns negative then line numbers are
-      // relative to the bottom of the video instead of the top. Therefore, we
-      // need to increase our initial position by the length or width of the
-      // video, depending on the writing direction, and reverse our axis directions.
-
-
-      if (linePos < 0) {
-        position += cue.vertical === "" ? containerBox.height : containerBox.width;
-        axis = axis.reverse();
-      } // Move the box to the specified position. This may not be its best
-      // position.
-
-
-      boxPosition.move(initialAxis, position);
-    } else {
-      // If we have a percentage line value for the cue.
-      var calculatedPercentage = boxPosition.lineHeight / containerBox.height * 100;
-
-      switch (cue.lineAlign) {
-        case "center":
-          linePos -= calculatedPercentage / 2;
-          break;
-
-        case "end":
-          linePos -= calculatedPercentage;
-          break;
-      } // Apply initial line position to the cue box.
-
-
-      switch (cue.vertical) {
-        case "":
-          styleBox.applyStyles({
-            top: styleBox.formatStyle(linePos, "%")
-          });
-          break;
-
-        case "rl":
-          styleBox.applyStyles({
-            left: styleBox.formatStyle(linePos, "%")
-          });
-          break;
-
-        case "lr":
-          styleBox.applyStyles({
-            right: styleBox.formatStyle(linePos, "%")
-          });
-          break;
-      }
-
-      axis = ["+y", "-x", "+x", "-y"]; // Get the box position again after we've applied the specified positioning
-      // to it.
-
-      boxPosition = new BoxPosition(styleBox);
-    }
-
-    var bestPosition = findBestPosition(boxPosition, axis);
-    styleBox.move(bestPosition.toCSSCompatValues(containerBox));
-  }
-
-  function WebVTT$1() {// Nothing
-  } // Helper to allow strings to be decoded instead of the default binary utf8 data.
-
-
-  WebVTT$1.StringDecoder = function () {
-    return {
-      decode: function decode(data) {
-        if (!data) {
-          return "";
-        }
-
-        if (typeof data !== "string") {
-          throw new Error("Error - expected string data.");
-        }
-
-        return decodeURIComponent(encodeURIComponent(data));
-      }
-    };
-  };
-
-  WebVTT$1.convertCueToDOMTree = function (window, cuetext) {
-    if (!window || !cuetext) {
-      return null;
-    }
-
-    return parseContent(window, cuetext);
-  };
-
-  var FONT_SIZE_PERCENT = 0.05;
-  var FONT_STYLE = "sans-serif";
-  var CUE_BACKGROUND_PADDING = "1.5%"; // Runs the processing model over the cues and regions passed to it.
-  // @param overlay A block level element (usually a div) that the computed cues
-  //                and regions will be placed into.
-
-  WebVTT$1.processCues = function (window, cues, overlay) {
-    if (!window || !cues || !overlay) {
-      return null;
-    } // Remove all previous children.
-
-
-    while (overlay.firstChild) {
-      overlay.removeChild(overlay.firstChild);
-    }
-
-    var paddedOverlay = window.document.createElement("div");
-    paddedOverlay.style.position = "absolute";
-    paddedOverlay.style.left = "0";
-    paddedOverlay.style.right = "0";
-    paddedOverlay.style.top = "0";
-    paddedOverlay.style.bottom = "0";
-    paddedOverlay.style.margin = CUE_BACKGROUND_PADDING;
-    overlay.appendChild(paddedOverlay); // Determine if we need to compute the display states of the cues. This could
-    // be the case if a cue's state has been changed since the last computation or
-    // if it has not been computed yet.
-
-    function shouldCompute(cues) {
-      for (var i = 0; i < cues.length; i++) {
-        if (cues[i].hasBeenReset || !cues[i].displayState) {
-          return true;
-        }
-      }
-
-      return false;
-    } // We don't need to recompute the cues' display states. Just reuse them.
-
-
-    if (!shouldCompute(cues)) {
-      for (var i = 0; i < cues.length; i++) {
-        paddedOverlay.appendChild(cues[i].displayState);
-      }
-
-      return;
-    }
-
-    var boxPositions = [],
-        containerBox = BoxPosition.getSimpleBoxPosition(paddedOverlay),
-        fontSize = Math.round(containerBox.height * FONT_SIZE_PERCENT * 100) / 100;
-    var styleOptions = {
-      font: fontSize + "px " + FONT_STYLE
-    };
-
-    (function () {
-      var styleBox, cue;
-
-      for (var i = 0; i < cues.length; i++) {
-        cue = cues[i]; // Compute the intial position and styles of the cue div.
-
-        styleBox = new CueStyleBox(window, cue, styleOptions);
-        paddedOverlay.appendChild(styleBox.div); // Move the cue div to it's correct line position.
-
-        moveBoxToLinePosition(window, styleBox, containerBox, boxPositions); // Remember the computed div so that we don't have to recompute it later
-        // if we don't have too.
-
-        cue.displayState = styleBox.div;
-        boxPositions.push(BoxPosition.getSimpleBoxPosition(styleBox));
-      }
-    })();
-  };
-
-  WebVTT$1.Parser = function (window, vttjs, decoder) {
-    if (!decoder) {
-      decoder = vttjs;
-      vttjs = {};
-    }
-
-    if (!vttjs) {
-      vttjs = {};
-    }
-
-    this.window = window;
-    this.vttjs = vttjs;
-    this.state = "INITIAL";
-    this.buffer = "";
-    this.decoder = decoder || new TextDecoder("utf8");
-    this.regionList = [];
-  };
-
-  WebVTT$1.Parser.prototype = {
-    // If the error is a ParsingError then report it to the consumer if
-    // possible. If it's not a ParsingError then throw it like normal.
-    reportOrThrowError: function reportOrThrowError(e) {
-      if (e instanceof ParsingError) {
-        this.onparsingerror && this.onparsingerror(e);
-      } else {
-        throw e;
-      }
-    },
-    parse: function parse(data) {
-      var self = this; // If there is no data then we won't decode it, but will just try to parse
-      // whatever is in buffer already. This may occur in circumstances, for
-      // example when flush() is called.
-
-      if (data) {
-        // Try to decode the data that we received.
-        self.buffer += self.decoder.decode(data, {
-          stream: true
-        });
-      }
-
-      function collectNextLine() {
-        var buffer = self.buffer;
-        var pos = 0;
-
-        while (pos < buffer.length && buffer[pos] !== '\r' && buffer[pos] !== '\n') {
-          ++pos;
-        }
-
-        var line = buffer.substr(0, pos); // Advance the buffer early in case we fail below.
-
-        if (buffer[pos] === '\r') {
-          ++pos;
-        }
-
-        if (buffer[pos] === '\n') {
-          ++pos;
-        }
-
-        self.buffer = buffer.substr(pos);
-        return line;
-      } // 3.4 WebVTT region and WebVTT region settings syntax
-
-
-      function parseRegion(input) {
-        var settings = new Settings();
-        parseOptions(input, function (k, v) {
-          switch (k) {
-            case "id":
-              settings.set(k, v);
-              break;
-
-            case "width":
-              settings.percent(k, v);
-              break;
-
-            case "lines":
-              settings.integer(k, v);
-              break;
-
-            case "regionanchor":
-            case "viewportanchor":
-              var xy = v.split(',');
-
-              if (xy.length !== 2) {
-                break;
-              } // We have to make sure both x and y parse, so use a temporary
-              // settings object here.
-
-
-              var anchor = new Settings();
-              anchor.percent("x", xy[0]);
-              anchor.percent("y", xy[1]);
-
-              if (!anchor.has("x") || !anchor.has("y")) {
-                break;
-              }
-
-              settings.set(k + "X", anchor.get("x"));
-              settings.set(k + "Y", anchor.get("y"));
-              break;
-
-            case "scroll":
-              settings.alt(k, v, ["up"]);
-              break;
-          }
-        }, /=/, /\s/); // Create the region, using default values for any values that were not
-        // specified.
-
-        if (settings.has("id")) {
-          var region = new (self.vttjs.VTTRegion || self.window.VTTRegion)();
-          region.width = settings.get("width", 100);
-          region.lines = settings.get("lines", 3);
-          region.regionAnchorX = settings.get("regionanchorX", 0);
-          region.regionAnchorY = settings.get("regionanchorY", 100);
-          region.viewportAnchorX = settings.get("viewportanchorX", 0);
-          region.viewportAnchorY = settings.get("viewportanchorY", 100);
-          region.scroll = settings.get("scroll", ""); // Register the region.
-
-          self.onregion && self.onregion(region); // Remember the VTTRegion for later in case we parse any VTTCues that
-          // reference it.
-
-          self.regionList.push({
-            id: settings.get("id"),
-            region: region
-          });
-        }
-      } // draft-pantos-http-live-streaming-20
-      // https://tools.ietf.org/html/draft-pantos-http-live-streaming-20#section-3.5
-      // 3.5 WebVTT
-
-
-      function parseTimestampMap(input) {
-        var settings = new Settings();
-        parseOptions(input, function (k, v) {
-          switch (k) {
-            case "MPEGT":
-              settings.integer(k + 'S', v);
-              break;
-
-            case "LOCA":
-              settings.set(k + 'L', parseTimeStamp(v));
-              break;
-          }
-        }, /[^\d]:/, /,/);
-        self.ontimestampmap && self.ontimestampmap({
-          "MPEGTS": settings.get("MPEGTS"),
-          "LOCAL": settings.get("LOCAL")
-        });
-      } // 3.2 WebVTT metadata header syntax
-
-
-      function parseHeader(input) {
-        if (input.match(/X-TIMESTAMP-MAP/)) {
-          // This line contains HLS X-TIMESTAMP-MAP metadata
-          parseOptions(input, function (k, v) {
-            switch (k) {
-              case "X-TIMESTAMP-MAP":
-                parseTimestampMap(v);
-                break;
-            }
-          }, /=/);
-        } else {
-          parseOptions(input, function (k, v) {
-            switch (k) {
-              case "Region":
-                // 3.3 WebVTT region metadata header syntax
-                parseRegion(v);
-                break;
-            }
-          }, /:/);
-        }
-      } // 5.1 WebVTT file parsing.
-
-
-      try {
-        var line;
-
-        if (self.state === "INITIAL") {
-          // We can't start parsing until we have the first line.
-          if (!/\r\n|\n/.test(self.buffer)) {
-            return this;
-          }
-
-          line = collectNextLine();
-          var m = line.match(/^WEBVTT([ \t].*)?$/);
-
-          if (!m || !m[0]) {
-            throw new ParsingError(ParsingError.Errors.BadSignature);
-          }
-
-          self.state = "HEADER";
-        }
-
-        var alreadyCollectedLine = false;
-
-        while (self.buffer) {
-          // We can't parse a line until we have the full line.
-          if (!/\r\n|\n/.test(self.buffer)) {
-            return this;
-          }
-
-          if (!alreadyCollectedLine) {
-            line = collectNextLine();
-          } else {
-            alreadyCollectedLine = false;
-          }
-
-          switch (self.state) {
-            case "HEADER":
-              // 13-18 - Allow a header (metadata) under the WEBVTT line.
-              if (/:/.test(line)) {
-                parseHeader(line);
-              } else if (!line) {
-                // An empty line terminates the header and starts the body (cues).
-                self.state = "ID";
-              }
-
-              continue;
-
-            case "NOTE":
-              // Ignore NOTE blocks.
-              if (!line) {
-                self.state = "ID";
-              }
-
-              continue;
-
-            case "ID":
-              // Check for the start of NOTE blocks.
-              if (/^NOTE($|[ \t])/.test(line)) {
-                self.state = "NOTE";
-                break;
-              } // 19-29 - Allow any number of line terminators, then initialize new cue values.
-
-
-              if (!line) {
-                continue;
-              }
-
-              self.cue = new (self.vttjs.VTTCue || self.window.VTTCue)(0, 0, ""); // Safari still uses the old middle value and won't accept center
-
-              try {
-                self.cue.align = "center";
-              } catch (e) {
-                self.cue.align = "middle";
-              }
-
-              self.state = "CUE"; // 30-39 - Check if self line contains an optional identifier or timing data.
-
-              if (line.indexOf("-->") === -1) {
-                self.cue.id = line;
-                continue;
-              }
-
-            // Process line as start of a cue.
-
-            /*falls through*/
-
-            case "CUE":
-              // 40 - Collect cue timings and settings.
-              try {
-                parseCue(line, self.cue, self.regionList);
-              } catch (e) {
-                self.reportOrThrowError(e); // In case of an error ignore rest of the cue.
-
-                self.cue = null;
-                self.state = "BADCUE";
-                continue;
-              }
-
-              self.state = "CUETEXT";
-              continue;
-
-            case "CUETEXT":
-              var hasSubstring = line.indexOf("-->") !== -1; // 34 - If we have an empty line then report the cue.
-              // 35 - If we have the special substring '-->' then report the cue,
-              // but do not collect the line as we need to process the current
-              // one as a new cue.
-
-              if (!line || hasSubstring && (alreadyCollectedLine = true)) {
-                // We are done parsing self cue.
-                self.oncue && self.oncue(self.cue);
-                self.cue = null;
-                self.state = "ID";
-                continue;
-              }
-
-              if (self.cue.text) {
-                self.cue.text += "\n";
-              }
-
-              self.cue.text += line.replace(/\u2028/g, '\n').replace(/u2029/g, '\n');
-              continue;
-
-            case "BADCUE":
-              // BADCUE
-              // 54-62 - Collect and discard the remaining cue.
-              if (!line) {
-                self.state = "ID";
-              }
-
-              continue;
-          }
-        }
-      } catch (e) {
-        self.reportOrThrowError(e); // If we are currently parsing a cue, report what we have.
-
-        if (self.state === "CUETEXT" && self.cue && self.oncue) {
-          self.oncue(self.cue);
-        }
-
-        self.cue = null; // Enter BADWEBVTT state if header was not parsed correctly otherwise
-        // another exception occurred so enter BADCUE state.
-
-        self.state = self.state === "INITIAL" ? "BADWEBVTT" : "BADCUE";
-      }
-
-      return this;
-    },
-    flush: function flush() {
-      var self = this;
-
-      try {
-        // Finish decoding the stream.
-        self.buffer += self.decoder.decode(); // Synthesize the end of the current cue or region.
-
-        if (self.cue || self.state === "HEADER") {
-          self.buffer += "\n\n";
-          self.parse();
-        } // If we've flushed, parsed, and we're still on the INITIAL state then
-        // that means we don't have enough of the stream to parse the first
-        // line.
-
-
-        if (self.state === "INITIAL") {
-          throw new ParsingError(ParsingError.Errors.BadSignature);
-        }
-      } catch (e) {
-        self.reportOrThrowError(e);
-      }
-
-      self.onflush && self.onflush();
-      return this;
-    }
-  };
-  var vtt = WebVTT$1;
-
-  /**
-   * Copyright 2013 vtt.js Contributors
-   *
-   * Licensed under the Apache License, Version 2.0 (the "License");
-   * you may not use this file except in compliance with the License.
-   * You may obtain a copy of the License at
-   *
-   *   http://www.apache.org/licenses/LICENSE-2.0
-   *
-   * Unless required by applicable law or agreed to in writing, software
-   * distributed under the License is distributed on an "AS IS" BASIS,
-   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-   * See the License for the specific language governing permissions and
-   * limitations under the License.
-   */
-  var autoKeyword = "auto";
-  var directionSetting = {
-    "": 1,
-    "lr": 1,
-    "rl": 1
-  };
-  var alignSetting = {
-    "start": 1,
-    "center": 1,
-    "end": 1,
-    "left": 1,
-    "right": 1,
-    "auto": 1,
-    "line-left": 1,
-    "line-right": 1
-  };
-
-  function findDirectionSetting(value) {
-    if (typeof value !== "string") {
-      return false;
-    }
-
-    var dir = directionSetting[value.toLowerCase()];
-    return dir ? value.toLowerCase() : false;
-  }
-
-  function findAlignSetting(value) {
-    if (typeof value !== "string") {
-      return false;
-    }
-
-    var align = alignSetting[value.toLowerCase()];
-    return align ? value.toLowerCase() : false;
-  }
-
-  function VTTCue(startTime, endTime, text) {
-    /**
-     * Shim implementation specific properties. These properties are not in
-     * the spec.
-     */
-    // Lets us know when the VTTCue's data has changed in such a way that we need
-    // to recompute its display state. This lets us compute its display state
-    // lazily.
-    this.hasBeenReset = false;
-    /**
-     * VTTCue and TextTrackCue properties
-     * http://dev.w3.org/html5/webvtt/#vttcue-interface
-     */
-
-    var _id = "";
-    var _pauseOnExit = false;
-    var _startTime = startTime;
-    var _endTime = endTime;
-    var _text = text;
-    var _region = null;
-    var _vertical = "";
-    var _snapToLines = true;
-    var _line = "auto";
-    var _lineAlign = "start";
-    var _position = "auto";
-    var _positionAlign = "auto";
-    var _size = 100;
-    var _align = "center";
-    Object.defineProperties(this, {
-      "id": {
-        enumerable: true,
-        get: function get() {
-          return _id;
-        },
-        set: function set(value) {
-          _id = "" + value;
-        }
-      },
-      "pauseOnExit": {
-        enumerable: true,
-        get: function get() {
-          return _pauseOnExit;
-        },
-        set: function set(value) {
-          _pauseOnExit = !!value;
-        }
-      },
-      "startTime": {
-        enumerable: true,
-        get: function get() {
-          return _startTime;
-        },
-        set: function set(value) {
-          if (typeof value !== "number") {
-            throw new TypeError("Start time must be set to a number.");
-          }
-
-          _startTime = value;
-          this.hasBeenReset = true;
-        }
-      },
-      "endTime": {
-        enumerable: true,
-        get: function get() {
-          return _endTime;
-        },
-        set: function set(value) {
-          if (typeof value !== "number") {
-            throw new TypeError("End time must be set to a number.");
-          }
-
-          _endTime = value;
-          this.hasBeenReset = true;
-        }
-      },
-      "text": {
-        enumerable: true,
-        get: function get() {
-          return _text;
-        },
-        set: function set(value) {
-          _text = "" + value;
-          this.hasBeenReset = true;
-        }
-      },
-      "region": {
-        enumerable: true,
-        get: function get() {
-          return _region;
-        },
-        set: function set(value) {
-          _region = value;
-          this.hasBeenReset = true;
-        }
-      },
-      "vertical": {
-        enumerable: true,
-        get: function get() {
-          return _vertical;
-        },
-        set: function set(value) {
-          var setting = findDirectionSetting(value); // Have to check for false because the setting an be an empty string.
-
-          if (setting === false) {
-            throw new SyntaxError("Vertical: an invalid or illegal direction string was specified.");
-          }
-
-          _vertical = setting;
-          this.hasBeenReset = true;
-        }
-      },
-      "snapToLines": {
-        enumerable: true,
-        get: function get() {
-          return _snapToLines;
-        },
-        set: function set(value) {
-          _snapToLines = !!value;
-          this.hasBeenReset = true;
-        }
-      },
-      "line": {
-        enumerable: true,
-        get: function get() {
-          return _line;
-        },
-        set: function set(value) {
-          if (typeof value !== "number" && value !== autoKeyword) {
-            throw new SyntaxError("Line: an invalid number or illegal string was specified.");
-          }
-
-          _line = value;
-          this.hasBeenReset = true;
-        }
-      },
-      "lineAlign": {
-        enumerable: true,
-        get: function get() {
-          return _lineAlign;
-        },
-        set: function set(value) {
-          var setting = findAlignSetting(value);
-
-          if (!setting) {
-            console.warn("lineAlign: an invalid or illegal string was specified.");
-          } else {
-            _lineAlign = setting;
-            this.hasBeenReset = true;
-          }
-        }
-      },
-      "position": {
-        enumerable: true,
-        get: function get() {
-          return _position;
-        },
-        set: function set(value) {
-          if (value < 0 || value > 100) {
-            throw new Error("Position must be between 0 and 100.");
-          }
-
-          _position = value;
-          this.hasBeenReset = true;
-        }
-      },
-      "positionAlign": {
-        enumerable: true,
-        get: function get() {
-          return _positionAlign;
-        },
-        set: function set(value) {
-          var setting = findAlignSetting(value);
-
-          if (!setting) {
-            console.warn("positionAlign: an invalid or illegal string was specified.");
-          } else {
-            _positionAlign = setting;
-            this.hasBeenReset = true;
-          }
-        }
-      },
-      "size": {
-        enumerable: true,
-        get: function get() {
-          return _size;
-        },
-        set: function set(value) {
-          if (value < 0 || value > 100) {
-            throw new Error("Size must be between 0 and 100.");
-          }
-
-          _size = value;
-          this.hasBeenReset = true;
-        }
-      },
-      "align": {
-        enumerable: true,
-        get: function get() {
-          return _align;
-        },
-        set: function set(value) {
-          var setting = findAlignSetting(value);
-
-          if (!setting) {
-            throw new SyntaxError("align: an invalid or illegal alignment string was specified.");
-          }
-
-          _align = setting;
-          this.hasBeenReset = true;
-        }
-      }
+    Object.keys(NORMAL).forEach(function (type) {
+        NORMAL[type].getterName = `${type}Tracks`;
+        NORMAL[type].privateName = `${type}Tracks_`;
     });
-    /**
-     * Other <track> spec defined properties
-     */
-    // http://www.whatwg.org/specs/web-apps/current-work/multipage/the-video-element.html#text-track-cue-display-state
+    const REMOTE = {
+        remoteText: {
+            ListClass: TextTrackList,
+            TrackClass: TextTrack,
+            capitalName: 'RemoteText',
+            getterName: 'remoteTextTracks',
+            privateName: 'remoteTextTracks_'
+        },
+        remoteTextEl: {
+            ListClass: HtmlTrackElementList,
+            TrackClass: HTMLTrackElement,
+            capitalName: 'RemoteTextTrackEls',
+            getterName: 'remoteTextTrackEls',
+            privateName: 'remoteTextTrackEls_'
+        }
+    };
+    const ALL = Object.assign({}, NORMAL, REMOTE);
+    REMOTE.names = Object.keys(REMOTE);
+    NORMAL.names = Object.keys(NORMAL);
+    ALL.names = [].concat(REMOTE.names).concat(NORMAL.names);
 
-    this.displayState = undefined;
-  }
-  /**
-   * VTTCue methods
-   */
+    var minDoc = {};
 
-
-  VTTCue.prototype.getCueAsHTML = function () {
-    // Assume WebVTT.convertCueToDOMTree is on the global.
-    return WebVTT.convertCueToDOMTree(window, this.text);
-  };
-
-  var vttcue = VTTCue;
-
-  /**
-   * Copyright 2013 vtt.js Contributors
-   *
-   * Licensed under the Apache License, Version 2.0 (the "License");
-   * you may not use this file except in compliance with the License.
-   * You may obtain a copy of the License at
-   *
-   *   http://www.apache.org/licenses/LICENSE-2.0
-   *
-   * Unless required by applicable law or agreed to in writing, software
-   * distributed under the License is distributed on an "AS IS" BASIS,
-   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-   * See the License for the specific language governing permissions and
-   * limitations under the License.
-   */
-  var scrollSetting = {
-    "": true,
-    "up": true
-  };
-
-  function findScrollSetting(value) {
-    if (typeof value !== "string") {
-      return false;
+    var topLevel = typeof commonjsGlobal !== 'undefined' ? commonjsGlobal : typeof window !== 'undefined' ? window : {};
+    var doccy;
+    if (typeof document !== 'undefined') {
+        doccy = document;
+    } else {
+        doccy = topLevel['__GLOBAL_DOCUMENT_CACHE@4'];
+        if (!doccy) {
+            doccy = topLevel['__GLOBAL_DOCUMENT_CACHE@4'] = minDoc;
+        }
     }
+    var document_1 = doccy;
 
-    var scroll = scrollSetting[value.toLowerCase()];
-    return scroll ? value.toLowerCase() : false;
-  }
-
-  function isValidPercentValue(value) {
-    return typeof value === "number" && value >= 0 && value <= 100;
-  } // VTTRegion shim http://dev.w3.org/html5/webvtt/#vttregion-interface
-
-
-  function VTTRegion() {
-    var _width = 100;
-    var _lines = 3;
-    var _regionAnchorX = 0;
-    var _regionAnchorY = 100;
-    var _viewportAnchorX = 0;
-    var _viewportAnchorY = 100;
-    var _scroll = "";
-    Object.defineProperties(this, {
-      "width": {
-        enumerable: true,
-        get: function get() {
-          return _width;
-        },
-        set: function set(value) {
-          if (!isValidPercentValue(value)) {
-            throw new Error("Width must be between 0 and 100.");
-          }
-
-          _width = value;
-        }
-      },
-      "lines": {
-        enumerable: true,
-        get: function get() {
-          return _lines;
-        },
-        set: function set(value) {
-          if (typeof value !== "number") {
-            throw new TypeError("Lines must be set to a number.");
-          }
-
-          _lines = value;
-        }
-      },
-      "regionAnchorY": {
-        enumerable: true,
-        get: function get() {
-          return _regionAnchorY;
-        },
-        set: function set(value) {
-          if (!isValidPercentValue(value)) {
-            throw new Error("RegionAnchorX must be between 0 and 100.");
-          }
-
-          _regionAnchorY = value;
-        }
-      },
-      "regionAnchorX": {
-        enumerable: true,
-        get: function get() {
-          return _regionAnchorX;
-        },
-        set: function set(value) {
-          if (!isValidPercentValue(value)) {
-            throw new Error("RegionAnchorY must be between 0 and 100.");
-          }
-
-          _regionAnchorX = value;
-        }
-      },
-      "viewportAnchorY": {
-        enumerable: true,
-        get: function get() {
-          return _viewportAnchorY;
-        },
-        set: function set(value) {
-          if (!isValidPercentValue(value)) {
-            throw new Error("ViewportAnchorY must be between 0 and 100.");
-          }
-
-          _viewportAnchorY = value;
-        }
-      },
-      "viewportAnchorX": {
-        enumerable: true,
-        get: function get() {
-          return _viewportAnchorX;
-        },
-        set: function set(value) {
-          if (!isValidPercentValue(value)) {
-            throw new Error("ViewportAnchorX must be between 0 and 100.");
-          }
-
-          _viewportAnchorX = value;
-        }
-      },
-      "scroll": {
-        enumerable: true,
-        get: function get() {
-          return _scroll;
-        },
-        set: function set(value) {
-          var setting = findScrollSetting(value); // Have to check for false as an empty string is a legal value.
-
-          if (setting === false) {
-            console.warn("Scroll: an invalid or illegal string was specified.");
-          } else {
-            _scroll = setting;
-          }
-        }
-      }
-    });
-  }
-
-  var vttregion = VTTRegion;
-
-  var browserIndex = createCommonjsModule(function (module) {
     /**
      * Copyright 2013 vtt.js Contributors
      *
@@ -10887,807 +8301,1705 @@
      * See the License for the specific language governing permissions and
      * limitations under the License.
      */
-    // Default exports for Node. Export the extended versions of VTTCue and
-    // VTTRegion in Node since we likely want the capability to convert back and
-    // forth between JSON. If we don't then it's not that big of a deal since we're
-    // off browser.
-    var vttjs = module.exports = {
-      WebVTT: vtt,
-      VTTCue: vttcue,
-      VTTRegion: vttregion
-    };
-    window_1.vttjs = vttjs;
-    window_1.WebVTT = vttjs.WebVTT;
-    var cueShim = vttjs.VTTCue;
-    var regionShim = vttjs.VTTRegion;
-    var nativeVTTCue = window_1.VTTCue;
-    var nativeVTTRegion = window_1.VTTRegion;
 
-    vttjs.shim = function () {
-      window_1.VTTCue = cueShim;
-      window_1.VTTRegion = regionShim;
-    };
+    /* -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+    /* vim: set shiftwidth=2 tabstop=2 autoindent cindent expandtab: */
 
-    vttjs.restore = function () {
-      window_1.VTTCue = nativeVTTCue;
-      window_1.VTTRegion = nativeVTTRegion;
-    };
+    var _objCreate = Object.create || function () {
+        function F() {}
+        return function (o) {
+            if (arguments.length !== 1) {
+                throw new Error('Object.create shim only accepts one parameter.');
+            }
+            F.prototype = o;
+            return new F();
+        };
+    }();
 
-    if (!window_1.VTTCue) {
-      vttjs.shim();
+    // Creates a new ParserError object from an errorData object. The errorData
+    // object should have default code and message properties. The default message
+    // property can be overriden by passing in a message parameter.
+    // See ParsingError.Errors below for acceptable errors.
+    function ParsingError(errorData, message) {
+        this.name = "ParsingError";
+        this.code = errorData.code;
+        this.message = message || errorData.message;
     }
-  });
-  browserIndex.WebVTT;
-  browserIndex.VTTCue;
-  browserIndex.VTTRegion;
+    ParsingError.prototype = _objCreate(Error.prototype);
+    ParsingError.prototype.constructor = ParsingError;
 
-  /**
-   * An Object containing a structure like: `{src: 'url', type: 'mimetype'}` or string
-   * that just contains the src url alone.
-   * * `var SourceObject = {src: 'http://ex.com/video.mp4', type: 'video/mp4'};`
+    // ParsingError metadata for acceptable ParsingErrors.
+    ParsingError.Errors = {
+        BadSignature: {
+            code: 0,
+            message: "Malformed WebVTT signature."
+        },
+        BadTimeStamp: {
+            code: 1,
+            message: "Malformed time stamp."
+        }
+    };
+
+    // Try to parse input as a time stamp.
+    function parseTimeStamp(input) {
+        function computeSeconds(h, m, s, f) {
+            return (h | 0) * 3600 + (m | 0) * 60 + (s | 0) + (f | 0) / 1000;
+        }
+        var m = input.match(/^(\d+):(\d{1,2})(:\d{1,2})?\.(\d{3})/);
+        if (!m) {
+            return null;
+        }
+        if (m[3]) {
+            // Timestamp takes the form of [hours]:[minutes]:[seconds].[milliseconds]
+            return computeSeconds(m[1], m[2], m[3].replace(":", ""), m[4]);
+        } else if (m[1] > 59) {
+            // Timestamp takes the form of [hours]:[minutes].[milliseconds]
+            // First position is hours as it's over 59.
+            return computeSeconds(m[1], m[2], 0, m[4]);
+        } else {
+            // Timestamp takes the form of [minutes]:[seconds].[milliseconds]
+            return computeSeconds(0, m[1], m[2], m[4]);
+        }
+    }
+
+    // A settings object holds key/value pairs and will ignore anything but the first
+    // assignment to a specific key.
+    function Settings() {
+        this.values = _objCreate(null);
+    }
+    Settings.prototype = {
+        // Only accept the first assignment to any key.
+        set: function (k, v) {
+            if (!this.get(k) && v !== "") {
+                this.values[k] = v;
+            }
+        },
+        // Return the value for a key, or a default value.
+        // If 'defaultKey' is passed then 'dflt' is assumed to be an object with
+        // a number of possible default values as properties where 'defaultKey' is
+        // the key of the property that will be chosen; otherwise it's assumed to be
+        // a single value.
+        get: function (k, dflt, defaultKey) {
+            if (defaultKey) {
+                return this.has(k) ? this.values[k] : dflt[defaultKey];
+            }
+            return this.has(k) ? this.values[k] : dflt;
+        },
+        // Check whether we have a value for a key.
+        has: function (k) {
+            return k in this.values;
+        },
+        // Accept a setting if its one of the given alternatives.
+        alt: function (k, v, a) {
+            for (var n = 0; n < a.length; ++n) {
+                if (v === a[n]) {
+                    this.set(k, v);
+                    break;
+                }
+            }
+        },
+        // Accept a setting if its a valid (signed) integer.
+        integer: function (k, v) {
+            if (/^-?\d+$/.test(v)) {
+                // integer
+                this.set(k, parseInt(v, 10));
+            }
+        },
+        // Accept a setting if its a valid percentage.
+        percent: function (k, v) {
+            if (v.match(/^([\d]{1,3})(\.[\d]*)?%$/)) {
+                v = parseFloat(v);
+                if (v >= 0 && v <= 100) {
+                    this.set(k, v);
+                    return true;
+                }
+            }
+            return false;
+        }
+    };
+
+    // Helper function to parse input into groups separated by 'groupDelim', and
+    // interprete each group as a key/value pair separated by 'keyValueDelim'.
+    function parseOptions(input, callback, keyValueDelim, groupDelim) {
+        var groups = groupDelim ? input.split(groupDelim) : [input];
+        for (var i in groups) {
+            if (typeof groups[i] !== "string") {
+                continue;
+            }
+            var kv = groups[i].split(keyValueDelim);
+            if (kv.length !== 2) {
+                continue;
+            }
+            var k = kv[0].trim();
+            var v = kv[1].trim();
+            callback(k, v);
+        }
+    }
+    function parseCue(input, cue, regionList) {
+        // Remember the original input if we need to throw an error.
+        var oInput = input;
+        // 4.1 WebVTT timestamp
+        function consumeTimeStamp() {
+            var ts = parseTimeStamp(input);
+            if (ts === null) {
+                throw new ParsingError(ParsingError.Errors.BadTimeStamp, "Malformed timestamp: " + oInput);
+            }
+            // Remove time stamp from input.
+            input = input.replace(/^[^\sa-zA-Z-]+/, "");
+            return ts;
+        }
+
+        // 4.4.2 WebVTT cue settings
+        function consumeCueSettings(input, cue) {
+            var settings = new Settings();
+            parseOptions(input, function (k, v) {
+                switch (k) {
+                    case "region":
+                        // Find the last region we parsed with the same region id.
+                        for (var i = regionList.length - 1; i >= 0; i--) {
+                            if (regionList[i].id === v) {
+                                settings.set(k, regionList[i].region);
+                                break;
+                            }
+                        }
+                        break;
+                    case "vertical":
+                        settings.alt(k, v, ["rl", "lr"]);
+                        break;
+                    case "line":
+                        var vals = v.split(","),
+                            vals0 = vals[0];
+                        settings.integer(k, vals0);
+                        settings.percent(k, vals0) ? settings.set("snapToLines", false) : null;
+                        settings.alt(k, vals0, ["auto"]);
+                        if (vals.length === 2) {
+                            settings.alt("lineAlign", vals[1], ["start", "center", "end"]);
+                        }
+                        break;
+                    case "position":
+                        vals = v.split(",");
+                        settings.percent(k, vals[0]);
+                        if (vals.length === 2) {
+                            settings.alt("positionAlign", vals[1], ["start", "center", "end"]);
+                        }
+                        break;
+                    case "size":
+                        settings.percent(k, v);
+                        break;
+                    case "align":
+                        settings.alt(k, v, ["start", "center", "end", "left", "right"]);
+                        break;
+                }
+            }, /:/, /\s/);
+
+            // Apply default values for any missing fields.
+            cue.region = settings.get("region", null);
+            cue.vertical = settings.get("vertical", "");
+            try {
+                cue.line = settings.get("line", "auto");
+            } catch (e) {}
+            cue.lineAlign = settings.get("lineAlign", "start");
+            cue.snapToLines = settings.get("snapToLines", true);
+            cue.size = settings.get("size", 100);
+            // Safari still uses the old middle value and won't accept center
+            try {
+                cue.align = settings.get("align", "center");
+            } catch (e) {
+                cue.align = settings.get("align", "middle");
+            }
+            try {
+                cue.position = settings.get("position", "auto");
+            } catch (e) {
+                cue.position = settings.get("position", {
+                    start: 0,
+                    left: 0,
+                    center: 50,
+                    middle: 50,
+                    end: 100,
+                    right: 100
+                }, cue.align);
+            }
+            cue.positionAlign = settings.get("positionAlign", {
+                start: "start",
+                left: "start",
+                center: "center",
+                middle: "center",
+                end: "end",
+                right: "end"
+            }, cue.align);
+        }
+        function skipWhitespace() {
+            input = input.replace(/^\s+/, "");
+        }
+
+        // 4.1 WebVTT cue timings.
+        skipWhitespace();
+        cue.startTime = consumeTimeStamp(); // (1) collect cue start time
+        skipWhitespace();
+        if (input.substr(0, 3) !== "-->") {
+            // (3) next characters must match "-->"
+            throw new ParsingError(ParsingError.Errors.BadTimeStamp, "Malformed time stamp (time stamps must be separated by '-->'): " + oInput);
+        }
+        input = input.substr(3);
+        skipWhitespace();
+        cue.endTime = consumeTimeStamp(); // (5) collect cue end time
+
+        // 4.1 WebVTT cue settings list.
+        skipWhitespace();
+        consumeCueSettings(input, cue);
+    }
+
+    // When evaluating this file as part of a Webpack bundle for server
+    // side rendering, `document` is an empty object.
+    var TEXTAREA_ELEMENT = document_1.createElement && document_1.createElement("textarea");
+    var TAG_NAME = {
+        c: "span",
+        i: "i",
+        b: "b",
+        u: "u",
+        ruby: "ruby",
+        rt: "rt",
+        v: "span",
+        lang: "span"
+    };
+
+    // 5.1 default text color
+    // 5.2 default text background color is equivalent to text color with bg_ prefix
+    var DEFAULT_COLOR_CLASS = {
+        white: 'rgba(255,255,255,1)',
+        lime: 'rgba(0,255,0,1)',
+        cyan: 'rgba(0,255,255,1)',
+        red: 'rgba(255,0,0,1)',
+        yellow: 'rgba(255,255,0,1)',
+        magenta: 'rgba(255,0,255,1)',
+        blue: 'rgba(0,0,255,1)',
+        black: 'rgba(0,0,0,1)'
+    };
+    var TAG_ANNOTATION = {
+        v: "title",
+        lang: "lang"
+    };
+    var NEEDS_PARENT = {
+        rt: "ruby"
+    };
+
+    // Parse content into a document fragment.
+    function parseContent(window, input) {
+        function nextToken() {
+            // Check for end-of-string.
+            if (!input) {
+                return null;
+            }
+
+            // Consume 'n' characters from the input.
+            function consume(result) {
+                input = input.substr(result.length);
+                return result;
+            }
+            var m = input.match(/^([^<]*)(<[^>]*>?)?/);
+            // If there is some text before the next tag, return it, otherwise return
+            // the tag.
+            return consume(m[1] ? m[1] : m[2]);
+        }
+        function unescape(s) {
+            TEXTAREA_ELEMENT.innerHTML = s;
+            s = TEXTAREA_ELEMENT.textContent;
+            TEXTAREA_ELEMENT.textContent = "";
+            return s;
+        }
+        function shouldAdd(current, element) {
+            return !NEEDS_PARENT[element.localName] || NEEDS_PARENT[element.localName] === current.localName;
+        }
+
+        // Create an element for this tag.
+        function createElement(type, annotation) {
+            var tagName = TAG_NAME[type];
+            if (!tagName) {
+                return null;
+            }
+            var element = window.document.createElement(tagName);
+            var name = TAG_ANNOTATION[type];
+            if (name && annotation) {
+                element[name] = annotation.trim();
+            }
+            return element;
+        }
+        var rootDiv = window.document.createElement("div"),
+            current = rootDiv,
+            t,
+            tagStack = [];
+        while ((t = nextToken()) !== null) {
+            if (t[0] === '<') {
+                if (t[1] === "/") {
+                    // If the closing tag matches, move back up to the parent node.
+                    if (tagStack.length && tagStack[tagStack.length - 1] === t.substr(2).replace(">", "")) {
+                        tagStack.pop();
+                        current = current.parentNode;
+                    }
+                    // Otherwise just ignore the end tag.
+                    continue;
+                }
+                var ts = parseTimeStamp(t.substr(1, t.length - 2));
+                var node;
+                if (ts) {
+                    // Timestamps are lead nodes as well.
+                    node = window.document.createProcessingInstruction("timestamp", ts);
+                    current.appendChild(node);
+                    continue;
+                }
+                var m = t.match(/^<([^.\s/0-9>]+)(\.[^\s\\>]+)?([^>\\]+)?(\\?)>?$/);
+                // If we can't parse the tag, skip to the next tag.
+                if (!m) {
+                    continue;
+                }
+                // Try to construct an element, and ignore the tag if we couldn't.
+                node = createElement(m[1], m[3]);
+                if (!node) {
+                    continue;
+                }
+                // Determine if the tag should be added based on the context of where it
+                // is placed in the cuetext.
+                if (!shouldAdd(current, node)) {
+                    continue;
+                }
+                // Set the class list (as a list of classes, separated by space).
+                if (m[2]) {
+                    var classes = m[2].split('.');
+                    classes.forEach(function (cl) {
+                        var bgColor = /^bg_/.test(cl);
+                        // slice out `bg_` if it's a background color
+                        var colorName = bgColor ? cl.slice(3) : cl;
+                        if (DEFAULT_COLOR_CLASS.hasOwnProperty(colorName)) {
+                            var propName = bgColor ? 'background-color' : 'color';
+                            var propValue = DEFAULT_COLOR_CLASS[colorName];
+                            node.style[propName] = propValue;
+                        }
+                    });
+                    node.className = classes.join(' ');
+                }
+                // Append the node to the current node, and enter the scope of the new
+                // node.
+                tagStack.push(m[1]);
+                current.appendChild(node);
+                current = node;
+                continue;
+            }
+
+            // Text nodes are leaf nodes.
+            current.appendChild(window.document.createTextNode(unescape(t)));
+        }
+        return rootDiv;
+    }
+
+    // This is a list of all the Unicode characters that have a strong
+    // right-to-left category. What this means is that these characters are
+    // written right-to-left for sure. It was generated by pulling all the strong
+    // right-to-left characters out of the Unicode data table. That table can
+    // found at: http://www.unicode.org/Public/UNIDATA/UnicodeData.txt
+    var strongRTLRanges = [[0x5be, 0x5be], [0x5c0, 0x5c0], [0x5c3, 0x5c3], [0x5c6, 0x5c6], [0x5d0, 0x5ea], [0x5f0, 0x5f4], [0x608, 0x608], [0x60b, 0x60b], [0x60d, 0x60d], [0x61b, 0x61b], [0x61e, 0x64a], [0x66d, 0x66f], [0x671, 0x6d5], [0x6e5, 0x6e6], [0x6ee, 0x6ef], [0x6fa, 0x70d], [0x70f, 0x710], [0x712, 0x72f], [0x74d, 0x7a5], [0x7b1, 0x7b1], [0x7c0, 0x7ea], [0x7f4, 0x7f5], [0x7fa, 0x7fa], [0x800, 0x815], [0x81a, 0x81a], [0x824, 0x824], [0x828, 0x828], [0x830, 0x83e], [0x840, 0x858], [0x85e, 0x85e], [0x8a0, 0x8a0], [0x8a2, 0x8ac], [0x200f, 0x200f], [0xfb1d, 0xfb1d], [0xfb1f, 0xfb28], [0xfb2a, 0xfb36], [0xfb38, 0xfb3c], [0xfb3e, 0xfb3e], [0xfb40, 0xfb41], [0xfb43, 0xfb44], [0xfb46, 0xfbc1], [0xfbd3, 0xfd3d], [0xfd50, 0xfd8f], [0xfd92, 0xfdc7], [0xfdf0, 0xfdfc], [0xfe70, 0xfe74], [0xfe76, 0xfefc], [0x10800, 0x10805], [0x10808, 0x10808], [0x1080a, 0x10835], [0x10837, 0x10838], [0x1083c, 0x1083c], [0x1083f, 0x10855], [0x10857, 0x1085f], [0x10900, 0x1091b], [0x10920, 0x10939], [0x1093f, 0x1093f], [0x10980, 0x109b7], [0x109be, 0x109bf], [0x10a00, 0x10a00], [0x10a10, 0x10a13], [0x10a15, 0x10a17], [0x10a19, 0x10a33], [0x10a40, 0x10a47], [0x10a50, 0x10a58], [0x10a60, 0x10a7f], [0x10b00, 0x10b35], [0x10b40, 0x10b55], [0x10b58, 0x10b72], [0x10b78, 0x10b7f], [0x10c00, 0x10c48], [0x1ee00, 0x1ee03], [0x1ee05, 0x1ee1f], [0x1ee21, 0x1ee22], [0x1ee24, 0x1ee24], [0x1ee27, 0x1ee27], [0x1ee29, 0x1ee32], [0x1ee34, 0x1ee37], [0x1ee39, 0x1ee39], [0x1ee3b, 0x1ee3b], [0x1ee42, 0x1ee42], [0x1ee47, 0x1ee47], [0x1ee49, 0x1ee49], [0x1ee4b, 0x1ee4b], [0x1ee4d, 0x1ee4f], [0x1ee51, 0x1ee52], [0x1ee54, 0x1ee54], [0x1ee57, 0x1ee57], [0x1ee59, 0x1ee59], [0x1ee5b, 0x1ee5b], [0x1ee5d, 0x1ee5d], [0x1ee5f, 0x1ee5f], [0x1ee61, 0x1ee62], [0x1ee64, 0x1ee64], [0x1ee67, 0x1ee6a], [0x1ee6c, 0x1ee72], [0x1ee74, 0x1ee77], [0x1ee79, 0x1ee7c], [0x1ee7e, 0x1ee7e], [0x1ee80, 0x1ee89], [0x1ee8b, 0x1ee9b], [0x1eea1, 0x1eea3], [0x1eea5, 0x1eea9], [0x1eeab, 0x1eebb], [0x10fffd, 0x10fffd]];
+    function isStrongRTLChar(charCode) {
+        for (var i = 0; i < strongRTLRanges.length; i++) {
+            var currentRange = strongRTLRanges[i];
+            if (charCode >= currentRange[0] && charCode <= currentRange[1]) {
+                return true;
+            }
+        }
+        return false;
+    }
+    function determineBidi(cueDiv) {
+        var nodeStack = [],
+            text = "",
+            charCode;
+        if (!cueDiv || !cueDiv.childNodes) {
+            return "ltr";
+        }
+        function pushNodes(nodeStack, node) {
+            for (var i = node.childNodes.length - 1; i >= 0; i--) {
+                nodeStack.push(node.childNodes[i]);
+            }
+        }
+        function nextTextNode(nodeStack) {
+            if (!nodeStack || !nodeStack.length) {
+                return null;
+            }
+            var node = nodeStack.pop(),
+                text = node.textContent || node.innerText;
+            if (text) {
+                // TODO: This should match all unicode type B characters (paragraph
+                // separator characters). See issue #115.
+                var m = text.match(/^.*(\n|\r)/);
+                if (m) {
+                    nodeStack.length = 0;
+                    return m[0];
+                }
+                return text;
+            }
+            if (node.tagName === "ruby") {
+                return nextTextNode(nodeStack);
+            }
+            if (node.childNodes) {
+                pushNodes(nodeStack, node);
+                return nextTextNode(nodeStack);
+            }
+        }
+        pushNodes(nodeStack, cueDiv);
+        while (text = nextTextNode(nodeStack)) {
+            for (var i = 0; i < text.length; i++) {
+                charCode = text.charCodeAt(i);
+                if (isStrongRTLChar(charCode)) {
+                    return "rtl";
+                }
+            }
+        }
+        return "ltr";
+    }
+    function computeLinePos(cue) {
+        if (typeof cue.line === "number" && (cue.snapToLines || cue.line >= 0 && cue.line <= 100)) {
+            return cue.line;
+        }
+        if (!cue.track || !cue.track.textTrackList || !cue.track.textTrackList.mediaElement) {
+            return -1;
+        }
+        var track = cue.track,
+            trackList = track.textTrackList,
+            count = 0;
+        for (var i = 0; i < trackList.length && trackList[i] !== track; i++) {
+            if (trackList[i].mode === "showing") {
+                count++;
+            }
+        }
+        return ++count * -1;
+    }
+    function StyleBox() {}
+
+    // Apply styles to a div. If there is no div passed then it defaults to the
+    // div on 'this'.
+    StyleBox.prototype.applyStyles = function (styles, div) {
+        div = div || this.div;
+        for (var prop in styles) {
+            if (styles.hasOwnProperty(prop)) {
+                div.style[prop] = styles[prop];
+            }
+        }
+    };
+    StyleBox.prototype.formatStyle = function (val, unit) {
+        return val === 0 ? 0 : val + unit;
+    };
+
+    // Constructs the computed display state of the cue (a div). Places the div
+    // into the overlay which should be a block level element (usually a div).
+    function CueStyleBox(window, cue, styleOptions) {
+        StyleBox.call(this);
+        this.cue = cue;
+
+        // Parse our cue's text into a DOM tree rooted at 'cueDiv'. This div will
+        // have inline positioning and will function as the cue background box.
+        this.cueDiv = parseContent(window, cue.text);
+        var styles = {
+            color: "rgba(255, 255, 255, 1)",
+            backgroundColor: "rgba(0, 0, 0, 0.8)",
+            position: "relative",
+            left: 0,
+            right: 0,
+            top: 0,
+            bottom: 0,
+            display: "inline",
+            writingMode: cue.vertical === "" ? "horizontal-tb" : cue.vertical === "lr" ? "vertical-lr" : "vertical-rl",
+            unicodeBidi: "plaintext"
+        };
+        this.applyStyles(styles, this.cueDiv);
+
+        // Create an absolutely positioned div that will be used to position the cue
+        // div. Note, all WebVTT cue-setting alignments are equivalent to the CSS
+        // mirrors of them except middle instead of center on Safari.
+        this.div = window.document.createElement("div");
+        styles = {
+            direction: determineBidi(this.cueDiv),
+            writingMode: cue.vertical === "" ? "horizontal-tb" : cue.vertical === "lr" ? "vertical-lr" : "vertical-rl",
+            unicodeBidi: "plaintext",
+            textAlign: cue.align === "middle" ? "center" : cue.align,
+            font: styleOptions.font,
+            whiteSpace: "pre-line",
+            position: "absolute"
+        };
+        this.applyStyles(styles);
+        this.div.appendChild(this.cueDiv);
+
+        // Calculate the distance from the reference edge of the viewport to the text
+        // position of the cue box. The reference edge will be resolved later when
+        // the box orientation styles are applied.
+        var textPos = 0;
+        switch (cue.positionAlign) {
+            case "start":
+                textPos = cue.position;
+                break;
+            case "center":
+                textPos = cue.position - cue.size / 2;
+                break;
+            case "end":
+                textPos = cue.position - cue.size;
+                break;
+        }
+
+        // Horizontal box orientation; textPos is the distance from the left edge of the
+        // area to the left edge of the box and cue.size is the distance extending to
+        // the right from there.
+        if (cue.vertical === "") {
+            this.applyStyles({
+                left: this.formatStyle(textPos, "%"),
+                width: this.formatStyle(cue.size, "%")
+            });
+            // Vertical box orientation; textPos is the distance from the top edge of the
+            // area to the top edge of the box and cue.size is the height extending
+            // downwards from there.
+        } else {
+            this.applyStyles({
+                top: this.formatStyle(textPos, "%"),
+                height: this.formatStyle(cue.size, "%")
+            });
+        }
+        this.move = function (box) {
+            this.applyStyles({
+                top: this.formatStyle(box.top, "px"),
+                bottom: this.formatStyle(box.bottom, "px"),
+                left: this.formatStyle(box.left, "px"),
+                right: this.formatStyle(box.right, "px"),
+                height: this.formatStyle(box.height, "px"),
+                width: this.formatStyle(box.width, "px")
+            });
+        };
+    }
+    CueStyleBox.prototype = _objCreate(StyleBox.prototype);
+    CueStyleBox.prototype.constructor = CueStyleBox;
+
+    // Represents the co-ordinates of an Element in a way that we can easily
+    // compute things with such as if it overlaps or intersects with another Element.
+    // Can initialize it with either a StyleBox or another BoxPosition.
+    function BoxPosition(obj) {
+        // Either a BoxPosition was passed in and we need to copy it, or a StyleBox
+        // was passed in and we need to copy the results of 'getBoundingClientRect'
+        // as the object returned is readonly. All co-ordinate values are in reference
+        // to the viewport origin (top left).
+        var lh, height, width, top;
+        if (obj.div) {
+            height = obj.div.offsetHeight;
+            width = obj.div.offsetWidth;
+            top = obj.div.offsetTop;
+            var rects = (rects = obj.div.childNodes) && (rects = rects[0]) && rects.getClientRects && rects.getClientRects();
+            obj = obj.div.getBoundingClientRect();
+            // In certain cases the outter div will be slightly larger then the sum of
+            // the inner div's lines. This could be due to bold text, etc, on some platforms.
+            // In this case we should get the average line height and use that. This will
+            // result in the desired behaviour.
+            lh = rects ? Math.max(rects[0] && rects[0].height || 0, obj.height / rects.length) : 0;
+        }
+        this.left = obj.left;
+        this.right = obj.right;
+        this.top = obj.top || top;
+        this.height = obj.height || height;
+        this.bottom = obj.bottom || top + (obj.height || height);
+        this.width = obj.width || width;
+        this.lineHeight = lh !== undefined ? lh : obj.lineHeight;
+    }
+
+    // Move the box along a particular axis. Optionally pass in an amount to move
+    // the box. If no amount is passed then the default is the line height of the
+    // box.
+    BoxPosition.prototype.move = function (axis, toMove) {
+        toMove = toMove !== undefined ? toMove : this.lineHeight;
+        switch (axis) {
+            case "+x":
+                this.left += toMove;
+                this.right += toMove;
+                break;
+            case "-x":
+                this.left -= toMove;
+                this.right -= toMove;
+                break;
+            case "+y":
+                this.top += toMove;
+                this.bottom += toMove;
+                break;
+            case "-y":
+                this.top -= toMove;
+                this.bottom -= toMove;
+                break;
+        }
+    };
+
+    // Check if this box overlaps another box, b2.
+    BoxPosition.prototype.overlaps = function (b2) {
+        return this.left < b2.right && this.right > b2.left && this.top < b2.bottom && this.bottom > b2.top;
+    };
+
+    // Check if this box overlaps any other boxes in boxes.
+    BoxPosition.prototype.overlapsAny = function (boxes) {
+        for (var i = 0; i < boxes.length; i++) {
+            if (this.overlaps(boxes[i])) {
+                return true;
+            }
+        }
+        return false;
+    };
+
+    // Check if this box is within another box.
+    BoxPosition.prototype.within = function (container) {
+        return this.top >= container.top && this.bottom <= container.bottom && this.left >= container.left && this.right <= container.right;
+    };
+
+    // Check if this box is entirely within the container or it is overlapping
+    // on the edge opposite of the axis direction passed. For example, if "+x" is
+    // passed and the box is overlapping on the left edge of the container, then
+    // return true.
+    BoxPosition.prototype.overlapsOppositeAxis = function (container, axis) {
+        switch (axis) {
+            case "+x":
+                return this.left < container.left;
+            case "-x":
+                return this.right > container.right;
+            case "+y":
+                return this.top < container.top;
+            case "-y":
+                return this.bottom > container.bottom;
+        }
+    };
+
+    // Find the percentage of the area that this box is overlapping with another
+    // box.
+    BoxPosition.prototype.intersectPercentage = function (b2) {
+        var x = Math.max(0, Math.min(this.right, b2.right) - Math.max(this.left, b2.left)),
+            y = Math.max(0, Math.min(this.bottom, b2.bottom) - Math.max(this.top, b2.top)),
+            intersectArea = x * y;
+        return intersectArea / (this.height * this.width);
+    };
+
+    // Convert the positions from this box to CSS compatible positions using
+    // the reference container's positions. This has to be done because this
+    // box's positions are in reference to the viewport origin, whereas, CSS
+    // values are in referecne to their respective edges.
+    BoxPosition.prototype.toCSSCompatValues = function (reference) {
+        return {
+            top: this.top - reference.top,
+            bottom: reference.bottom - this.bottom,
+            left: this.left - reference.left,
+            right: reference.right - this.right,
+            height: this.height,
+            width: this.width
+        };
+    };
+
+    // Get an object that represents the box's position without anything extra.
+    // Can pass a StyleBox, HTMLElement, or another BoxPositon.
+    BoxPosition.getSimpleBoxPosition = function (obj) {
+        var height = obj.div ? obj.div.offsetHeight : obj.tagName ? obj.offsetHeight : 0;
+        var width = obj.div ? obj.div.offsetWidth : obj.tagName ? obj.offsetWidth : 0;
+        var top = obj.div ? obj.div.offsetTop : obj.tagName ? obj.offsetTop : 0;
+        obj = obj.div ? obj.div.getBoundingClientRect() : obj.tagName ? obj.getBoundingClientRect() : obj;
+        var ret = {
+            left: obj.left,
+            right: obj.right,
+            top: obj.top || top,
+            height: obj.height || height,
+            bottom: obj.bottom || top + (obj.height || height),
+            width: obj.width || width
+        };
+        return ret;
+    };
+
+    // Move a StyleBox to its specified, or next best, position. The containerBox
+    // is the box that contains the StyleBox, such as a div. boxPositions are
+    // a list of other boxes that the styleBox can't overlap with.
+    function moveBoxToLinePosition(window, styleBox, containerBox, boxPositions) {
+        // Find the best position for a cue box, b, on the video. The axis parameter
+        // is a list of axis, the order of which, it will move the box along. For example:
+        // Passing ["+x", "-x"] will move the box first along the x axis in the positive
+        // direction. If it doesn't find a good position for it there it will then move
+        // it along the x axis in the negative direction.
+        function findBestPosition(b, axis) {
+            var bestPosition,
+                specifiedPosition = new BoxPosition(b),
+                percentage = 1; // Highest possible so the first thing we get is better.
+
+            for (var i = 0; i < axis.length; i++) {
+                while (b.overlapsOppositeAxis(containerBox, axis[i]) || b.within(containerBox) && b.overlapsAny(boxPositions)) {
+                    b.move(axis[i]);
+                }
+                // We found a spot where we aren't overlapping anything. This is our
+                // best position.
+                if (b.within(containerBox)) {
+                    return b;
+                }
+                var p = b.intersectPercentage(containerBox);
+                // If we're outside the container box less then we were on our last try
+                // then remember this position as the best position.
+                if (percentage > p) {
+                    bestPosition = new BoxPosition(b);
+                    percentage = p;
+                }
+                // Reset the box position to the specified position.
+                b = new BoxPosition(specifiedPosition);
+            }
+            return bestPosition || specifiedPosition;
+        }
+        var boxPosition = new BoxPosition(styleBox),
+            cue = styleBox.cue,
+            linePos = computeLinePos(cue),
+            axis = [];
+
+        // If we have a line number to align the cue to.
+        if (cue.snapToLines) {
+            var size;
+            switch (cue.vertical) {
+                case "":
+                    axis = ["+y", "-y"];
+                    size = "height";
+                    break;
+                case "rl":
+                    axis = ["+x", "-x"];
+                    size = "width";
+                    break;
+                case "lr":
+                    axis = ["-x", "+x"];
+                    size = "width";
+                    break;
+            }
+            var step = boxPosition.lineHeight,
+                position = step * Math.round(linePos),
+                maxPosition = containerBox[size] + step,
+                initialAxis = axis[0];
+
+            // If the specified intial position is greater then the max position then
+            // clamp the box to the amount of steps it would take for the box to
+            // reach the max position.
+            if (Math.abs(position) > maxPosition) {
+                position = position < 0 ? -1 : 1;
+                position *= Math.ceil(maxPosition / step) * step;
+            }
+
+            // If computed line position returns negative then line numbers are
+            // relative to the bottom of the video instead of the top. Therefore, we
+            // need to increase our initial position by the length or width of the
+            // video, depending on the writing direction, and reverse our axis directions.
+            if (linePos < 0) {
+                position += cue.vertical === "" ? containerBox.height : containerBox.width;
+                axis = axis.reverse();
+            }
+
+            // Move the box to the specified position. This may not be its best
+            // position.
+            boxPosition.move(initialAxis, position);
+        } else {
+            // If we have a percentage line value for the cue.
+            var calculatedPercentage = boxPosition.lineHeight / containerBox.height * 100;
+            switch (cue.lineAlign) {
+                case "center":
+                    linePos -= calculatedPercentage / 2;
+                    break;
+                case "end":
+                    linePos -= calculatedPercentage;
+                    break;
+            }
+
+            // Apply initial line position to the cue box.
+            switch (cue.vertical) {
+                case "":
+                    styleBox.applyStyles({
+                        top: styleBox.formatStyle(linePos, "%")
+                    });
+                    break;
+                case "rl":
+                    styleBox.applyStyles({
+                        left: styleBox.formatStyle(linePos, "%")
+                    });
+                    break;
+                case "lr":
+                    styleBox.applyStyles({
+                        right: styleBox.formatStyle(linePos, "%")
+                    });
+                    break;
+            }
+            axis = ["+y", "-x", "+x", "-y"];
+
+            // Get the box position again after we've applied the specified positioning
+            // to it.
+            boxPosition = new BoxPosition(styleBox);
+        }
+        var bestPosition = findBestPosition(boxPosition, axis);
+        styleBox.move(bestPosition.toCSSCompatValues(containerBox));
+    }
+    function WebVTT$1() {
+        // Nothing
+    }
+
+    // Helper to allow strings to be decoded instead of the default binary utf8 data.
+    WebVTT$1.StringDecoder = function () {
+        return {
+            decode: function (data) {
+                if (!data) {
+                    return "";
+                }
+                if (typeof data !== "string") {
+                    throw new Error("Error - expected string data.");
+                }
+                return decodeURIComponent(encodeURIComponent(data));
+            }
+        };
+    };
+    WebVTT$1.convertCueToDOMTree = function (window, cuetext) {
+        if (!window || !cuetext) {
+            return null;
+        }
+        return parseContent(window, cuetext);
+    };
+    var FONT_SIZE_PERCENT = 0.05;
+    var FONT_STYLE = "sans-serif";
+    var CUE_BACKGROUND_PADDING = "1.5%";
+
+    // Runs the processing model over the cues and regions passed to it.
+    // @param overlay A block level element (usually a div) that the computed cues
+    //                and regions will be placed into.
+    WebVTT$1.processCues = function (window, cues, overlay) {
+        if (!window || !cues || !overlay) {
+            return null;
+        }
+
+        // Remove all previous children.
+        while (overlay.firstChild) {
+            overlay.removeChild(overlay.firstChild);
+        }
+        var paddedOverlay = window.document.createElement("div");
+        paddedOverlay.style.position = "absolute";
+        paddedOverlay.style.left = "0";
+        paddedOverlay.style.right = "0";
+        paddedOverlay.style.top = "0";
+        paddedOverlay.style.bottom = "0";
+        paddedOverlay.style.margin = CUE_BACKGROUND_PADDING;
+        overlay.appendChild(paddedOverlay);
+
+        // Determine if we need to compute the display states of the cues. This could
+        // be the case if a cue's state has been changed since the last computation or
+        // if it has not been computed yet.
+        function shouldCompute(cues) {
+            for (var i = 0; i < cues.length; i++) {
+                if (cues[i].hasBeenReset || !cues[i].displayState) {
+                    return true;
+                }
+            }
+            return false;
+        }
+
+        // We don't need to recompute the cues' display states. Just reuse them.
+        if (!shouldCompute(cues)) {
+            for (var i = 0; i < cues.length; i++) {
+                paddedOverlay.appendChild(cues[i].displayState);
+            }
+            return;
+        }
+        var boxPositions = [],
+            containerBox = BoxPosition.getSimpleBoxPosition(paddedOverlay),
+            fontSize = Math.round(containerBox.height * FONT_SIZE_PERCENT * 100) / 100;
+        var styleOptions = {
+            font: fontSize + "px " + FONT_STYLE
+        };
+        (function () {
+            var styleBox, cue;
+            for (var i = 0; i < cues.length; i++) {
+                cue = cues[i];
+
+                // Compute the intial position and styles of the cue div.
+                styleBox = new CueStyleBox(window, cue, styleOptions);
+                paddedOverlay.appendChild(styleBox.div);
+
+                // Move the cue div to it's correct line position.
+                moveBoxToLinePosition(window, styleBox, containerBox, boxPositions);
+
+                // Remember the computed div so that we don't have to recompute it later
+                // if we don't have too.
+                cue.displayState = styleBox.div;
+                boxPositions.push(BoxPosition.getSimpleBoxPosition(styleBox));
+            }
+        })();
+    };
+    WebVTT$1.Parser = function (window, vttjs, decoder) {
+        if (!decoder) {
+            decoder = vttjs;
+            vttjs = {};
+        }
+        if (!vttjs) {
+            vttjs = {};
+        }
+        this.window = window;
+        this.vttjs = vttjs;
+        this.state = "INITIAL";
+        this.buffer = "";
+        this.decoder = decoder || new TextDecoder("utf8");
+        this.regionList = [];
+    };
+    WebVTT$1.Parser.prototype = {
+        // If the error is a ParsingError then report it to the consumer if
+        // possible. If it's not a ParsingError then throw it like normal.
+        reportOrThrowError: function (e) {
+            if (e instanceof ParsingError) {
+                this.onparsingerror && this.onparsingerror(e);
+            } else {
+                throw e;
+            }
+        },
+        parse: function (data) {
+            var self = this;
+
+            // If there is no data then we won't decode it, but will just try to parse
+            // whatever is in buffer already. This may occur in circumstances, for
+            // example when flush() is called.
+            if (data) {
+                // Try to decode the data that we received.
+                self.buffer += self.decoder.decode(data, {
+                    stream: true
+                });
+            }
+            function collectNextLine() {
+                var buffer = self.buffer;
+                var pos = 0;
+                while (pos < buffer.length && buffer[pos] !== '\r' && buffer[pos] !== '\n') {
+                    ++pos;
+                }
+                var line = buffer.substr(0, pos);
+                // Advance the buffer early in case we fail below.
+                if (buffer[pos] === '\r') {
+                    ++pos;
+                }
+                if (buffer[pos] === '\n') {
+                    ++pos;
+                }
+                self.buffer = buffer.substr(pos);
+                return line;
+            }
+
+            // 3.4 WebVTT region and WebVTT region settings syntax
+            function parseRegion(input) {
+                var settings = new Settings();
+                parseOptions(input, function (k, v) {
+                    switch (k) {
+                        case "id":
+                            settings.set(k, v);
+                            break;
+                        case "width":
+                            settings.percent(k, v);
+                            break;
+                        case "lines":
+                            settings.integer(k, v);
+                            break;
+                        case "regionanchor":
+                        case "viewportanchor":
+                            var xy = v.split(',');
+                            if (xy.length !== 2) {
+                                break;
+                            }
+                            // We have to make sure both x and y parse, so use a temporary
+                            // settings object here.
+                            var anchor = new Settings();
+                            anchor.percent("x", xy[0]);
+                            anchor.percent("y", xy[1]);
+                            if (!anchor.has("x") || !anchor.has("y")) {
+                                break;
+                            }
+                            settings.set(k + "X", anchor.get("x"));
+                            settings.set(k + "Y", anchor.get("y"));
+                            break;
+                        case "scroll":
+                            settings.alt(k, v, ["up"]);
+                            break;
+                    }
+                }, /=/, /\s/);
+
+                // Create the region, using default values for any values that were not
+                // specified.
+                if (settings.has("id")) {
+                    var region = new (self.vttjs.VTTRegion || self.window.VTTRegion)();
+                    region.width = settings.get("width", 100);
+                    region.lines = settings.get("lines", 3);
+                    region.regionAnchorX = settings.get("regionanchorX", 0);
+                    region.regionAnchorY = settings.get("regionanchorY", 100);
+                    region.viewportAnchorX = settings.get("viewportanchorX", 0);
+                    region.viewportAnchorY = settings.get("viewportanchorY", 100);
+                    region.scroll = settings.get("scroll", "");
+                    // Register the region.
+                    self.onregion && self.onregion(region);
+                    // Remember the VTTRegion for later in case we parse any VTTCues that
+                    // reference it.
+                    self.regionList.push({
+                        id: settings.get("id"),
+                        region: region
+                    });
+                }
+            }
+
+            // draft-pantos-http-live-streaming-20
+            // https://tools.ietf.org/html/draft-pantos-http-live-streaming-20#section-3.5
+            // 3.5 WebVTT
+            function parseTimestampMap(input) {
+                var settings = new Settings();
+                parseOptions(input, function (k, v) {
+                    switch (k) {
+                        case "MPEGT":
+                            settings.integer(k + 'S', v);
+                            break;
+                        case "LOCA":
+                            settings.set(k + 'L', parseTimeStamp(v));
+                            break;
+                    }
+                }, /[^\d]:/, /,/);
+                self.ontimestampmap && self.ontimestampmap({
+                    "MPEGTS": settings.get("MPEGTS"),
+                    "LOCAL": settings.get("LOCAL")
+                });
+            }
+
+            // 3.2 WebVTT metadata header syntax
+            function parseHeader(input) {
+                if (input.match(/X-TIMESTAMP-MAP/)) {
+                    // This line contains HLS X-TIMESTAMP-MAP metadata
+                    parseOptions(input, function (k, v) {
+                        switch (k) {
+                            case "X-TIMESTAMP-MAP":
+                                parseTimestampMap(v);
+                                break;
+                        }
+                    }, /=/);
+                } else {
+                    parseOptions(input, function (k, v) {
+                        switch (k) {
+                            case "Region":
+                                // 3.3 WebVTT region metadata header syntax
+                                parseRegion(v);
+                                break;
+                        }
+                    }, /:/);
+                }
+            }
+
+            // 5.1 WebVTT file parsing.
+            try {
+                var line;
+                if (self.state === "INITIAL") {
+                    // We can't start parsing until we have the first line.
+                    if (!/\r\n|\n/.test(self.buffer)) {
+                        return this;
+                    }
+                    line = collectNextLine();
+                    var m = line.match(/^WEBVTT([ \t].*)?$/);
+                    if (!m || !m[0]) {
+                        throw new ParsingError(ParsingError.Errors.BadSignature);
+                    }
+                    self.state = "HEADER";
+                }
+                var alreadyCollectedLine = false;
+                while (self.buffer) {
+                    // We can't parse a line until we have the full line.
+                    if (!/\r\n|\n/.test(self.buffer)) {
+                        return this;
+                    }
+                    if (!alreadyCollectedLine) {
+                        line = collectNextLine();
+                    } else {
+                        alreadyCollectedLine = false;
+                    }
+                    switch (self.state) {
+                        case "HEADER":
+                            // 13-18 - Allow a header (metadata) under the WEBVTT line.
+                            if (/:/.test(line)) {
+                                parseHeader(line);
+                            } else if (!line) {
+                                // An empty line terminates the header and starts the body (cues).
+                                self.state = "ID";
+                            }
+                            continue;
+                        case "NOTE":
+                            // Ignore NOTE blocks.
+                            if (!line) {
+                                self.state = "ID";
+                            }
+                            continue;
+                        case "ID":
+                            // Check for the start of NOTE blocks.
+                            if (/^NOTE($|[ \t])/.test(line)) {
+                                self.state = "NOTE";
+                                break;
+                            }
+                            // 19-29 - Allow any number of line terminators, then initialize new cue values.
+                            if (!line) {
+                                continue;
+                            }
+                            self.cue = new (self.vttjs.VTTCue || self.window.VTTCue)(0, 0, "");
+                            // Safari still uses the old middle value and won't accept center
+                            try {
+                                self.cue.align = "center";
+                            } catch (e) {
+                                self.cue.align = "middle";
+                            }
+                            self.state = "CUE";
+                            // 30-39 - Check if self line contains an optional identifier or timing data.
+                            if (line.indexOf("-->") === -1) {
+                                self.cue.id = line;
+                                continue;
+                            }
+                        // Process line as start of a cue.
+                        /*falls through*/
+                        case "CUE":
+                            // 40 - Collect cue timings and settings.
+                            try {
+                                parseCue(line, self.cue, self.regionList);
+                            } catch (e) {
+                                self.reportOrThrowError(e);
+                                // In case of an error ignore rest of the cue.
+                                self.cue = null;
+                                self.state = "BADCUE";
+                                continue;
+                            }
+                            self.state = "CUETEXT";
+                            continue;
+                        case "CUETEXT":
+                            var hasSubstring = line.indexOf("-->") !== -1;
+                            // 34 - If we have an empty line then report the cue.
+                            // 35 - If we have the special substring '-->' then report the cue,
+                            // but do not collect the line as we need to process the current
+                            // one as a new cue.
+                            if (!line || hasSubstring && (alreadyCollectedLine = true)) {
+                                // We are done parsing self cue.
+                                self.oncue && self.oncue(self.cue);
+                                self.cue = null;
+                                self.state = "ID";
+                                continue;
+                            }
+                            if (self.cue.text) {
+                                self.cue.text += "\n";
+                            }
+                            self.cue.text += line.replace(/\u2028/g, '\n').replace(/u2029/g, '\n');
+                            continue;
+                        case "BADCUE":
+                            // BADCUE
+                            // 54-62 - Collect and discard the remaining cue.
+                            if (!line) {
+                                self.state = "ID";
+                            }
+                            continue;
+                    }
+                }
+            } catch (e) {
+                self.reportOrThrowError(e);
+
+                // If we are currently parsing a cue, report what we have.
+                if (self.state === "CUETEXT" && self.cue && self.oncue) {
+                    self.oncue(self.cue);
+                }
+                self.cue = null;
+                // Enter BADWEBVTT state if header was not parsed correctly otherwise
+                // another exception occurred so enter BADCUE state.
+                self.state = self.state === "INITIAL" ? "BADWEBVTT" : "BADCUE";
+            }
+            return this;
+        },
+        flush: function () {
+            var self = this;
+            try {
+                // Finish decoding the stream.
+                self.buffer += self.decoder.decode();
+                // Synthesize the end of the current cue or region.
+                if (self.cue || self.state === "HEADER") {
+                    self.buffer += "\n\n";
+                    self.parse();
+                }
+                // If we've flushed, parsed, and we're still on the INITIAL state then
+                // that means we don't have enough of the stream to parse the first
+                // line.
+                if (self.state === "INITIAL") {
+                    throw new ParsingError(ParsingError.Errors.BadSignature);
+                }
+            } catch (e) {
+                self.reportOrThrowError(e);
+            }
+            self.onflush && self.onflush();
+            return this;
+        }
+    };
+    var vtt = WebVTT$1;
+
+    /**
+     * Copyright 2013 vtt.js Contributors
+     *
+     * Licensed under the Apache License, Version 2.0 (the "License");
+     * you may not use this file except in compliance with the License.
+     * You may obtain a copy of the License at
+     *
+     *   http://www.apache.org/licenses/LICENSE-2.0
+     *
+     * Unless required by applicable law or agreed to in writing, software
+     * distributed under the License is distributed on an "AS IS" BASIS,
+     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     * See the License for the specific language governing permissions and
+     * limitations under the License.
+     */
+
+    var autoKeyword = "auto";
+    var directionSetting = {
+        "": 1,
+        "lr": 1,
+        "rl": 1
+    };
+    var alignSetting = {
+        "start": 1,
+        "center": 1,
+        "end": 1,
+        "left": 1,
+        "right": 1,
+        "auto": 1,
+        "line-left": 1,
+        "line-right": 1
+    };
+    function findDirectionSetting(value) {
+        if (typeof value !== "string") {
+            return false;
+        }
+        var dir = directionSetting[value.toLowerCase()];
+        return dir ? value.toLowerCase() : false;
+    }
+    function findAlignSetting(value) {
+        if (typeof value !== "string") {
+            return false;
+        }
+        var align = alignSetting[value.toLowerCase()];
+        return align ? value.toLowerCase() : false;
+    }
+    function VTTCue(startTime, endTime, text) {
+        /**
+         * Shim implementation specific properties. These properties are not in
+         * the spec.
+         */
+
+        // Lets us know when the VTTCue's data has changed in such a way that we need
+        // to recompute its display state. This lets us compute its display state
+        // lazily.
+        this.hasBeenReset = false;
+
+        /**
+         * VTTCue and TextTrackCue properties
+         * http://dev.w3.org/html5/webvtt/#vttcue-interface
+         */
+
+        var _id = "";
+        var _pauseOnExit = false;
+        var _startTime = startTime;
+        var _endTime = endTime;
+        var _text = text;
+        var _region = null;
+        var _vertical = "";
+        var _snapToLines = true;
+        var _line = "auto";
+        var _lineAlign = "start";
+        var _position = "auto";
+        var _positionAlign = "auto";
+        var _size = 100;
+        var _align = "center";
+        Object.defineProperties(this, {
+            "id": {
+                enumerable: true,
+                get: function () {
+                    return _id;
+                },
+                set: function (value) {
+                    _id = "" + value;
+                }
+            },
+            "pauseOnExit": {
+                enumerable: true,
+                get: function () {
+                    return _pauseOnExit;
+                },
+                set: function (value) {
+                    _pauseOnExit = !!value;
+                }
+            },
+            "startTime": {
+                enumerable: true,
+                get: function () {
+                    return _startTime;
+                },
+                set: function (value) {
+                    if (typeof value !== "number") {
+                        throw new TypeError("Start time must be set to a number.");
+                    }
+                    _startTime = value;
+                    this.hasBeenReset = true;
+                }
+            },
+            "endTime": {
+                enumerable: true,
+                get: function () {
+                    return _endTime;
+                },
+                set: function (value) {
+                    if (typeof value !== "number") {
+                        throw new TypeError("End time must be set to a number.");
+                    }
+                    _endTime = value;
+                    this.hasBeenReset = true;
+                }
+            },
+            "text": {
+                enumerable: true,
+                get: function () {
+                    return _text;
+                },
+                set: function (value) {
+                    _text = "" + value;
+                    this.hasBeenReset = true;
+                }
+            },
+            "region": {
+                enumerable: true,
+                get: function () {
+                    return _region;
+                },
+                set: function (value) {
+                    _region = value;
+                    this.hasBeenReset = true;
+                }
+            },
+            "vertical": {
+                enumerable: true,
+                get: function () {
+                    return _vertical;
+                },
+                set: function (value) {
+                    var setting = findDirectionSetting(value);
+                    // Have to check for false because the setting an be an empty string.
+                    if (setting === false) {
+                        throw new SyntaxError("Vertical: an invalid or illegal direction string was specified.");
+                    }
+                    _vertical = setting;
+                    this.hasBeenReset = true;
+                }
+            },
+            "snapToLines": {
+                enumerable: true,
+                get: function () {
+                    return _snapToLines;
+                },
+                set: function (value) {
+                    _snapToLines = !!value;
+                    this.hasBeenReset = true;
+                }
+            },
+            "line": {
+                enumerable: true,
+                get: function () {
+                    return _line;
+                },
+                set: function (value) {
+                    if (typeof value !== "number" && value !== autoKeyword) {
+                        throw new SyntaxError("Line: an invalid number or illegal string was specified.");
+                    }
+                    _line = value;
+                    this.hasBeenReset = true;
+                }
+            },
+            "lineAlign": {
+                enumerable: true,
+                get: function () {
+                    return _lineAlign;
+                },
+                set: function (value) {
+                    var setting = findAlignSetting(value);
+                    if (!setting) {
+                        console.warn("lineAlign: an invalid or illegal string was specified.");
+                    } else {
+                        _lineAlign = setting;
+                        this.hasBeenReset = true;
+                    }
+                }
+            },
+            "position": {
+                enumerable: true,
+                get: function () {
+                    return _position;
+                },
+                set: function (value) {
+                    if (value < 0 || value > 100) {
+                        throw new Error("Position must be between 0 and 100.");
+                    }
+                    _position = value;
+                    this.hasBeenReset = true;
+                }
+            },
+            "positionAlign": {
+                enumerable: true,
+                get: function () {
+                    return _positionAlign;
+                },
+                set: function (value) {
+                    var setting = findAlignSetting(value);
+                    if (!setting) {
+                        console.warn("positionAlign: an invalid or illegal string was specified.");
+                    } else {
+                        _positionAlign = setting;
+                        this.hasBeenReset = true;
+                    }
+                }
+            },
+            "size": {
+                enumerable: true,
+                get: function () {
+                    return _size;
+                },
+                set: function (value) {
+                    if (value < 0 || value > 100) {
+                        throw new Error("Size must be between 0 and 100.");
+                    }
+                    _size = value;
+                    this.hasBeenReset = true;
+                }
+            },
+            "align": {
+                enumerable: true,
+                get: function () {
+                    return _align;
+                },
+                set: function (value) {
+                    var setting = findAlignSetting(value);
+                    if (!setting) {
+                        throw new SyntaxError("align: an invalid or illegal alignment string was specified.");
+                    }
+                    _align = setting;
+                    this.hasBeenReset = true;
+                }
+            }
+        });
+
+        /**
+         * Other <track> spec defined properties
+         */
+
+        // http://www.whatwg.org/specs/web-apps/current-work/multipage/the-video-element.html#text-track-cue-display-state
+        this.displayState = undefined;
+    }
+
+    /**
+     * VTTCue methods
+     */
+
+    VTTCue.prototype.getCueAsHTML = function () {
+        // Assume WebVTT.convertCueToDOMTree is on the global.
+        return WebVTT.convertCueToDOMTree(window, this.text);
+    };
+    var vttcue = VTTCue;
+
+    /**
+     * Copyright 2013 vtt.js Contributors
+     *
+     * Licensed under the Apache License, Version 2.0 (the "License");
+     * you may not use this file except in compliance with the License.
+     * You may obtain a copy of the License at
+     *
+     *   http://www.apache.org/licenses/LICENSE-2.0
+     *
+     * Unless required by applicable law or agreed to in writing, software
+     * distributed under the License is distributed on an "AS IS" BASIS,
+     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     * See the License for the specific language governing permissions and
+     * limitations under the License.
+     */
+
+    var scrollSetting = {
+        "": true,
+        "up": true
+    };
+    function findScrollSetting(value) {
+        if (typeof value !== "string") {
+            return false;
+        }
+        var scroll = scrollSetting[value.toLowerCase()];
+        return scroll ? value.toLowerCase() : false;
+    }
+    function isValidPercentValue(value) {
+        return typeof value === "number" && value >= 0 && value <= 100;
+    }
+
+    // VTTRegion shim http://dev.w3.org/html5/webvtt/#vttregion-interface
+    function VTTRegion() {
+        var _width = 100;
+        var _lines = 3;
+        var _regionAnchorX = 0;
+        var _regionAnchorY = 100;
+        var _viewportAnchorX = 0;
+        var _viewportAnchorY = 100;
+        var _scroll = "";
+        Object.defineProperties(this, {
+            "width": {
+                enumerable: true,
+                get: function () {
+                    return _width;
+                },
+                set: function (value) {
+                    if (!isValidPercentValue(value)) {
+                        throw new Error("Width must be between 0 and 100.");
+                    }
+                    _width = value;
+                }
+            },
+            "lines": {
+                enumerable: true,
+                get: function () {
+                    return _lines;
+                },
+                set: function (value) {
+                    if (typeof value !== "number") {
+                        throw new TypeError("Lines must be set to a number.");
+                    }
+                    _lines = value;
+                }
+            },
+            "regionAnchorY": {
+                enumerable: true,
+                get: function () {
+                    return _regionAnchorY;
+                },
+                set: function (value) {
+                    if (!isValidPercentValue(value)) {
+                        throw new Error("RegionAnchorX must be between 0 and 100.");
+                    }
+                    _regionAnchorY = value;
+                }
+            },
+            "regionAnchorX": {
+                enumerable: true,
+                get: function () {
+                    return _regionAnchorX;
+                },
+                set: function (value) {
+                    if (!isValidPercentValue(value)) {
+                        throw new Error("RegionAnchorY must be between 0 and 100.");
+                    }
+                    _regionAnchorX = value;
+                }
+            },
+            "viewportAnchorY": {
+                enumerable: true,
+                get: function () {
+                    return _viewportAnchorY;
+                },
+                set: function (value) {
+                    if (!isValidPercentValue(value)) {
+                        throw new Error("ViewportAnchorY must be between 0 and 100.");
+                    }
+                    _viewportAnchorY = value;
+                }
+            },
+            "viewportAnchorX": {
+                enumerable: true,
+                get: function () {
+                    return _viewportAnchorX;
+                },
+                set: function (value) {
+                    if (!isValidPercentValue(value)) {
+                        throw new Error("ViewportAnchorX must be between 0 and 100.");
+                    }
+                    _viewportAnchorX = value;
+                }
+            },
+            "scroll": {
+                enumerable: true,
+                get: function () {
+                    return _scroll;
+                },
+                set: function (value) {
+                    var setting = findScrollSetting(value);
+                    // Have to check for false as an empty string is a legal value.
+                    if (setting === false) {
+                        console.warn("Scroll: an invalid or illegal string was specified.");
+                    } else {
+                        _scroll = setting;
+                    }
+                }
+            }
+        });
+    }
+    var vttregion = VTTRegion;
+
+    var browserIndex = createCommonjsModule(function (module) {
+        /**
+         * Copyright 2013 vtt.js Contributors
+         *
+         * Licensed under the Apache License, Version 2.0 (the "License");
+         * you may not use this file except in compliance with the License.
+         * You may obtain a copy of the License at
+         *
+         *   http://www.apache.org/licenses/LICENSE-2.0
+         *
+         * Unless required by applicable law or agreed to in writing, software
+         * distributed under the License is distributed on an "AS IS" BASIS,
+         * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+         * See the License for the specific language governing permissions and
+         * limitations under the License.
+         */
+
+            // Default exports for Node. Export the extended versions of VTTCue and
+            // VTTRegion in Node since we likely want the capability to convert back and
+            // forth between JSON. If we don't then it's not that big of a deal since we're
+            // off browser.
+
+        var vttjs = module.exports = {
+                WebVTT: vtt,
+                VTTCue: vttcue,
+                VTTRegion: vttregion
+            };
+        window_1.vttjs = vttjs;
+        window_1.WebVTT = vttjs.WebVTT;
+        var cueShim = vttjs.VTTCue;
+        var regionShim = vttjs.VTTRegion;
+        var nativeVTTCue = window_1.VTTCue;
+        var nativeVTTRegion = window_1.VTTRegion;
+        vttjs.shim = function () {
+            window_1.VTTCue = cueShim;
+            window_1.VTTRegion = regionShim;
+        };
+        vttjs.restore = function () {
+            window_1.VTTCue = nativeVTTCue;
+            window_1.VTTRegion = nativeVTTRegion;
+        };
+        if (!window_1.VTTCue) {
+            vttjs.shim();
+        }
+    });
+    browserIndex.WebVTT;
+    browserIndex.VTTCue;
+    browserIndex.VTTRegion;
+
+    /**
+     * @file tech.js
+     */
+
+    /**
+     * An Object containing a structure like: `{src: 'url', type: 'mimetype'}` or string
+     * that just contains the src url alone.
+     * * `var SourceObject = {src: 'http://ex.com/video.mp4', type: 'video/mp4'};`
      * `var SourceString = 'http://example.com/some-video.mp4';`
-   *
-   * @typedef {Object|string} Tech~SourceObject
-   *
-   * @property {string} src
-   *           The url to the source
-   *
-   * @property {string} type
-   *           The mime type of the source
-   */
-
-  /**
-   * A function used by {@link Tech} to create a new {@link TextTrack}.
-   *
-   * @private
-   *
-   * @param {Tech} self
-   *        An instance of the Tech class.
-   *
-   * @param {string} kind
-   *        `TextTrack` kind (subtitles, captions, descriptions, chapters, or metadata)
-   *
-   * @param {string} [label]
-   *        Label to identify the text track
-   *
-   * @param {string} [language]
-   *        Two letter language abbreviation
-   *
-   * @param {Object} [options={}]
-   *        An object with additional text track options
-   *
-   * @return {TextTrack}
-   *          The text track that was created.
-   */
-
-  function createTrackHelper(self, kind, label, language, options) {
-    if (options === void 0) {
-      options = {};
-    }
-
-    var tracks = self.textTracks();
-    options.kind = kind;
-
-    if (label) {
-      options.label = label;
-    }
-
-    if (language) {
-      options.language = language;
-    }
-
-    options.tech = self;
-    var track = new ALL.text.TrackClass(options);
-    tracks.addTrack(track);
-    return track;
-  }
-  /**
-   * This is the base class for media playback technology controllers, such as
-   * {@link HTML5}
-   *
-   * @extends Component
-   */
-
-
-  var Tech = /*#__PURE__*/function (_Component) {
-    inheritsLoose(Tech, _Component);
-
-    /**
-    * Create an instance of this Tech.
-    *
-    * @param {Object} [options]
-    *        The key/value store of player options.
-    *
-    * @param {Component~ReadyCallback} ready
-    *        Callback function to call when the `HTML5` Tech is ready.
-    */
-    function Tech(options, ready) {
-      var _this;
-
-      if (options === void 0) {
-        options = {};
-      }
-
-      if (ready === void 0) {
-        ready = function ready() {};
-      }
-
-      // we don't want the tech to report user activity automatically.
-      // This is done manually in addControlsListeners
-      options.reportTouchActivity = false;
-      _this = _Component.call(this, null, options, ready) || this;
-
-      _this.onDurationChange_ = function (e) {
-        return _this.onDurationChange(e);
-      };
-
-      _this.trackProgress_ = function (e) {
-        return _this.trackProgress(e);
-      };
-
-      _this.trackCurrentTime_ = function (e) {
-        return _this.trackCurrentTime(e);
-      };
-
-      _this.stopTrackingCurrentTime_ = function (e) {
-        return _this.stopTrackingCurrentTime(e);
-      };
-
-      _this.disposeSourceHandler_ = function (e) {
-        return _this.disposeSourceHandler(e);
-      };
-
-      _this.queuedHanders_ = new Set(); // keep track of whether the current source has played at all to
-      // implement a very limited played()
-
-      _this.hasStarted_ = false;
-
-      _this.on('playing', function () {
-        this.hasStarted_ = true;
-      });
-
-      _this.on('loadstart', function () {
-        this.hasStarted_ = false;
-      });
-
-      ALL.names.forEach(function (name) {
-        var props = ALL[name];
-
-        if (options && options[props.getterName]) {
-          _this[props.privateName] = options[props.getterName];
-        }
-      }); // Manually track progress in cases where the browser/tech doesn't report it.
-
-      if (!_this.featuresProgressEvents) {
-        _this.manualProgressOn();
-      } // Manually track timeupdates in cases where the browser/tech doesn't report it.
-
-
-      if (!_this.featuresTimeupdateEvents) {
-        _this.manualTimeUpdatesOn();
-      }
-
-      ['Text', 'Audio', 'Video'].forEach(function (track) {
-        if (options["native" + track + "Tracks"] === false) {
-          _this["featuresNative" + track + "Tracks"] = false;
-        }
-      });
-
-      if (options.nativeCaptions === false || options.nativeTextTracks === false) {
-        _this.featuresNativeTextTracks = false;
-      } else if (options.nativeCaptions === true || options.nativeTextTracks === true) {
-        _this.featuresNativeTextTracks = true;
-      }
-
-      if (!_this.featuresNativeTextTracks) {
-        _this.emulateTextTracks();
-      }
-
-      _this.preloadTextTracks = options.preloadTextTracks !== false;
-      _this.autoRemoteTextTracks_ = new ALL.text.ListClass();
-
-      _this.initTrackListeners(); // Turn on component tap events only if not using native controls
-
-
-      if (!options.nativeControlsForTouch) {
-        _this.emitTapEvents();
-      }
-
-      if (_this.constructor) {
-        _this.name_ = _this.constructor.name || 'Unknown Tech';
-      }
-
-      return _this;
-    }
-    /**
-     * A special function to trigger source set in a way that will allow player
-     * to re-trigger if the player or tech are not ready yet.
      *
-     * @fires Tech#sourceset
-     * @param {string} src The source string at the time of the source changing.
+     * @typedef {Object|string} Tech~SourceObject
+     *
+     * @property {string} src
+     *           The url to the source
+     *
+     * @property {string} type
+     *           The mime type of the source
      */
 
-
-    var _proto = Tech.prototype;
-
-    _proto.triggerSourceset = function triggerSourceset(src) {
-      var _this2 = this;
-
-      if (!this.isReady_) {
-        // on initial ready we have to trigger source set
-        // 1ms after ready so that player can watch for it.
-        this.one('ready', function () {
-          return _this2.setTimeout(function () {
-            return _this2.triggerSourceset(src);
-          }, 1);
-        });
-      }
-      /**
-       * Fired when the source is set on the tech causing the media element
-       * to reload.
-       *
-       * @see {@link Player#event:sourceset}
-       * @event Tech#sourceset
-       * @type {EventTarget~Event}
-       */
-
-
-      this.trigger({
-        src: src,
-        type: 'sourceset'
-      });
-    }
-    /* Fallbacks for unsupported event types
-    ================================================================================ */
-
     /**
-     * Polyfill the `progress` event for browsers that don't support it natively.
+     * A function used by {@link Tech} to create a new {@link TextTrack}.
      *
-     * @see {@link Tech#trackProgress}
-     */
-    ;
-
-    _proto.manualProgressOn = function manualProgressOn() {
-      this.on('durationchange', this.onDurationChange_);
-      this.manualProgress = true; // Trigger progress watching when a source begins loading
-
-      this.one('ready', this.trackProgress_);
-    }
-    /**
-     * Turn off the polyfill for `progress` events that was created in
-     * {@link Tech#manualProgressOn}
-     */
-    ;
-
-    _proto.manualProgressOff = function manualProgressOff() {
-      this.manualProgress = false;
-      this.stopTrackingProgress();
-      this.off('durationchange', this.onDurationChange_);
-    }
-    /**
-     * This is used to trigger a `progress` event when the buffered percent changes. It
-     * sets an interval function that will be called every 500 milliseconds to check if the
-     * buffer end percent has changed.
+     * @private
      *
-     * > This function is called by {@link Tech#manualProgressOn}
-     *
-     * @param {EventTarget~Event} event
-     *        The `ready` event that caused this to run.
-     *
-     * @listens Tech#ready
-     * @fires Tech#progress
-     */
-    ;
-
-    _proto.trackProgress = function trackProgress(event) {
-      this.stopTrackingProgress();
-      this.progressInterval = this.setInterval(bind(this, function () {
-        // Don't trigger unless buffered amount is greater than last time
-        var numBufferedPercent = this.bufferedPercent();
-
-        if (this.bufferedPercent_ !== numBufferedPercent) {
-          /**
-           * See {@link Player#progress}
-           *
-           * @event Tech#progress
-           * @type {EventTarget~Event}
-           */
-          this.trigger('progress');
-        }
-
-        this.bufferedPercent_ = numBufferedPercent;
-
-        if (numBufferedPercent === 1) {
-          this.stopTrackingProgress();
-        }
-      }), 500);
-    }
-    /**
-     * Update our internal duration on a `durationchange` event by calling
-     * {@link Tech#duration}.
-     *
-     * @param {EventTarget~Event} event
-     *        The `durationchange` event that caused this to run.
-     *
-     * @listens Tech#durationchange
-     */
-    ;
-
-    _proto.onDurationChange = function onDurationChange(event) {
-      this.duration_ = this.duration();
-    }
-    /**
-     * Get and create a `TimeRange` object for buffering.
-     *
-     * @return {TimeRange}
-     *         The time range object that was created.
-     */
-    ;
-
-    _proto.buffered = function buffered() {
-      return createTimeRanges(0, 0);
-    }
-    /**
-     * Get the percentage of the current video that is currently buffered.
-     *
-     * @return {number}
-     *         A number from 0 to 1 that represents the decimal percentage of the
-     *         video that is buffered.
-     *
-     */
-    ;
-
-    _proto.bufferedPercent = function bufferedPercent$1() {
-      return bufferedPercent(this.buffered(), this.duration_);
-    }
-    /**
-     * Turn off the polyfill for `progress` events that was created in
-     * {@link Tech#manualProgressOn}
-     * Stop manually tracking progress events by clearing the interval that was set in
-     * {@link Tech#trackProgress}.
-     */
-    ;
-
-    _proto.stopTrackingProgress = function stopTrackingProgress() {
-      this.clearInterval(this.progressInterval);
-    }
-    /**
-     * Polyfill the `timeupdate` event for browsers that don't support it.
-     *
-     * @see {@link Tech#trackCurrentTime}
-     */
-    ;
-
-    _proto.manualTimeUpdatesOn = function manualTimeUpdatesOn() {
-      this.manualTimeUpdates = true;
-      this.on('play', this.trackCurrentTime_);
-      this.on('pause', this.stopTrackingCurrentTime_);
-    }
-    /**
-     * Turn off the polyfill for `timeupdate` events that was created in
-     * {@link Tech#manualTimeUpdatesOn}
-     */
-    ;
-
-    _proto.manualTimeUpdatesOff = function manualTimeUpdatesOff() {
-      this.manualTimeUpdates = false;
-      this.stopTrackingCurrentTime();
-      this.off('play', this.trackCurrentTime_);
-      this.off('pause', this.stopTrackingCurrentTime_);
-    }
-    /**
-     * Sets up an interval function to track current time and trigger `timeupdate` every
-     * 250 milliseconds.
-     *
-     * @listens Tech#play
-     * @triggers Tech#timeupdate
-     */
-    ;
-
-    _proto.trackCurrentTime = function trackCurrentTime() {
-      if (this.currentTimeInterval) {
-        this.stopTrackingCurrentTime();
-      }
-
-      this.currentTimeInterval = this.setInterval(function () {
-        /**
-         * Triggered at an interval of 250ms to indicated that time is passing in the video.
-         *
-         * @event Tech#timeupdate
-         * @type {EventTarget~Event}
-         */
-        this.trigger({
-          type: 'timeupdate',
-          target: this,
-          manuallyTriggered: true
-        }); // 42 = 24 fps // 250 is what Webkit uses // FF uses 15
-      }, 250);
-    }
-    /**
-     * Stop the interval function created in {@link Tech#trackCurrentTime} so that the
-     * `timeupdate` event is no longer triggered.
-     *
-     * @listens {Tech#pause}
-     */
-    ;
-
-    _proto.stopTrackingCurrentTime = function stopTrackingCurrentTime() {
-      this.clearInterval(this.currentTimeInterval); // #1002 - if the video ends right before the next timeupdate would happen,
-      // the progress bar won't make it all the way to the end
-
-      this.trigger({
-        type: 'timeupdate',
-        target: this,
-        manuallyTriggered: true
-      });
-    }
-    /**
-     * Turn off all event polyfills, clear the `Tech`s {@link AudioTrackList},
-     * {@link VideoTrackList}, and {@link TextTrackList}, and dispose of this Tech.
-     *
-     * @fires Component#dispose
-     */
-    ;
-
-    _proto.dispose = function dispose() {
-      // clear out all tracks because we can't reuse them between techs
-      this.clearTracks(NORMAL.names); // Turn off any manual progress or timeupdate tracking
-
-      if (this.manualProgress) {
-        this.manualProgressOff();
-      }
-
-      if (this.manualTimeUpdates) {
-        this.manualTimeUpdatesOff();
-      }
-
-      _Component.prototype.dispose.call(this);
-    }
-    /**
-     * Clear out a single `TrackList` or an array of `TrackLists` given their names.
-     *
-     * > Note: Techs without source handlers should call this between sources for `video`
-     *         & `audio` tracks. You don't want to use them between tracks!
-     *
-     * @param {string[]|string} types
-     *        TrackList names to clear, valid names are `video`, `audio`, and
-     *        `text`.
-     */
-    ;
-
-    _proto.clearTracks = function clearTracks(types) {
-      var _this3 = this;
-
-      types = [].concat(types); // clear out all tracks because we can't reuse them between techs
-
-      types.forEach(function (type) {
-        var list = _this3[type + "Tracks"]() || [];
-        var i = list.length;
-
-        while (i--) {
-          var track = list[i];
-
-          if (type === 'text') {
-            _this3.removeRemoteTextTrack(track);
-          }
-
-          list.removeTrack(track);
-        }
-      });
-    }
-    /**
-     * Remove any TextTracks added via addRemoteTextTrack that are
-     * flagged for automatic garbage collection
-     */
-    ;
-
-    _proto.cleanupAutoTextTracks = function cleanupAutoTextTracks() {
-      var list = this.autoRemoteTextTracks_ || [];
-      var i = list.length;
-
-      while (i--) {
-        var track = list[i];
-        this.removeRemoteTextTrack(track);
-      }
-    }
-    /**
-     * Reset the tech, which will removes all sources and reset the internal readyState.
-     *
-     * @abstract
-     */
-    ;
-
-    _proto.reset = function reset() {}
-    /**
-     * Get the value of `crossOrigin` from the tech.
-     *
-     * @abstract
-     *
-     * @see {Html5#crossOrigin}
-     */
-    ;
-
-    _proto.crossOrigin = function crossOrigin() {}
-    /**
-     * Set the value of `crossOrigin` on the tech.
-     *
-     * @abstract
-     *
-     * @param {string} crossOrigin the crossOrigin value
-     * @see {Html5#setCrossOrigin}
-     */
-    ;
-
-    _proto.setCrossOrigin = function setCrossOrigin() {}
-    /**
-     * Get or set an error on the Tech.
-     *
-     * @param {MediaError} [err]
-     *        Error to set on the Tech
-     *
-     * @return {MediaError|null}
-     *         The current error object on the tech, or null if there isn't one.
-     */
-    ;
-
-    _proto.error = function error(err) {
-      if (err !== undefined) {
-        this.error_ = new MediaError(err);
-        this.trigger('error');
-      }
-
-      return this.error_;
-    }
-    /**
-     * Returns the `TimeRange`s that have been played through for the current source.
-     *
-     * > NOTE: This implementation is incomplete. It does not track the played `TimeRange`.
-     *         It only checks whether the source has played at all or not.
-     *
-     * @return {TimeRange}
-     *         - A single time range if this video has played
-     *         - An empty set of ranges if not.
-     */
-    ;
-
-    _proto.played = function played() {
-      if (this.hasStarted_) {
-        return createTimeRanges(0, 0);
-      }
-
-      return createTimeRanges();
-    }
-    /**
-     * Start playback
-     *
-     * @abstract
-     *
-     * @see {Html5#play}
-     */
-    ;
-
-    _proto.play = function play() {}
-    /**
-     * Set whether we are scrubbing or not
-     *
-     * @abstract
-     *
-     * @see {Html5#setScrubbing}
-     */
-    ;
-
-    _proto.setScrubbing = function setScrubbing() {}
-    /**
-     * Get whether we are scrubbing or not
-     *
-     * @abstract
-     *
-     * @see {Html5#scrubbing}
-     */
-    ;
-
-    _proto.scrubbing = function scrubbing() {}
-    /**
-     * Causes a manual time update to occur if {@link Tech#manualTimeUpdatesOn} was
-     * previously called.
-     *
-     * @fires Tech#timeupdate
-     */
-    ;
-
-    _proto.setCurrentTime = function setCurrentTime() {
-      // improve the accuracy of manual timeupdates
-      if (this.manualTimeUpdates) {
-        /**
-         * A manual `timeupdate` event.
-         *
-         * @event Tech#timeupdate
-         * @type {EventTarget~Event}
-         */
-        this.trigger({
-          type: 'timeupdate',
-          target: this,
-          manuallyTriggered: true
-        });
-      }
-    }
-    /**
-     * Turn on listeners for {@link VideoTrackList}, {@link {AudioTrackList}, and
-     * {@link TextTrackList} events.
-     *
-     * This adds {@link EventTarget~EventListeners} for `addtrack`, and  `removetrack`.
-     *
-     * @fires Tech#audiotrackchange
-     * @fires Tech#videotrackchange
-     * @fires Tech#texttrackchange
-     */
-    ;
-
-    _proto.initTrackListeners = function initTrackListeners() {
-      var _this4 = this;
-
-      /**
-        * Triggered when tracks are added or removed on the Tech {@link AudioTrackList}
-        *
-        * @event Tech#audiotrackchange
-        * @type {EventTarget~Event}
-        */
-
-      /**
-        * Triggered when tracks are added or removed on the Tech {@link VideoTrackList}
-        *
-        * @event Tech#videotrackchange
-        * @type {EventTarget~Event}
-        */
-
-      /**
-        * Triggered when tracks are added or removed on the Tech {@link TextTrackList}
-        *
-        * @event Tech#texttrackchange
-        * @type {EventTarget~Event}
-        */
-      NORMAL.names.forEach(function (name) {
-        var props = NORMAL[name];
-
-        var trackListChanges = function trackListChanges() {
-          _this4.trigger(name + "trackchange");
-        };
-
-        var tracks = _this4[props.getterName]();
-
-        tracks.addEventListener('removetrack', trackListChanges);
-        tracks.addEventListener('addtrack', trackListChanges);
-
-        _this4.on('dispose', function () {
-          tracks.removeEventListener('removetrack', trackListChanges);
-          tracks.removeEventListener('addtrack', trackListChanges);
-        });
-      });
-    }
-    /**
-     * Emulate TextTracks using vtt.js if necessary
-     *
-     * @fires Tech#vttjsloaded
-     * @fires Tech#vttjserror
-     */
-    ;
-
-    _proto.addWebVttScript_ = function addWebVttScript_() {
-      var _this5 = this;
-
-      if (window.WebVTT) {
-        return;
-      } // Initially, Tech.el_ is a child of a dummy-div wait until the Component system
-      // signals that the Tech is ready at which point Tech.el_ is part of the DOM
-      // before inserting the WebVTT script
-
-
-      if (document.body.contains(this.el())) {
-        // load via require if available and vtt.js script location was not passed in
-        // as an option. novtt builds will turn the above require call into an empty object
-        // which will cause this if check to always fail.
-        if (!this.options_['vtt.js'] && isPlain(browserIndex) && Object.keys(browserIndex).length > 0) {
-          this.trigger('vttjsloaded');
-          return;
-        } // load vtt.js via the script location option or the cdn of no location was
-        // passed in
-
-
-        var script = document.createElement('script');
-        script.src = this.options_['vtt.js'] || 'https://vjs.zencdn.net/vttjs/0.14.1/vtt.min.js';
-
-        script.onload = function () {
-          /**
-           * Fired when vtt.js is loaded.
-           *
-           * @event Tech#vttjsloaded
-           * @type {EventTarget~Event}
-           */
-          _this5.trigger('vttjsloaded');
-        };
-
-        script.onerror = function () {
-          /**
-           * Fired when vtt.js was not loaded due to an error
-           *
-           * @event Tech#vttjsloaded
-           * @type {EventTarget~Event}
-           */
-          _this5.trigger('vttjserror');
-        };
-
-        this.on('dispose', function () {
-          script.onload = null;
-          script.onerror = null;
-        }); // but have not loaded yet and we set it to true before the inject so that
-        // we don't overwrite the injected window.WebVTT if it loads right away
-
-        window.WebVTT = true;
-        this.el().parentNode.appendChild(script);
-      } else {
-        this.ready(this.addWebVttScript_);
-      }
-    }
-    /**
-     * Emulate texttracks
-     *
-     */
-    ;
-
-    _proto.emulateTextTracks = function emulateTextTracks() {
-      var _this6 = this;
-
-      var tracks = this.textTracks();
-      var remoteTracks = this.remoteTextTracks();
-
-      var handleAddTrack = function handleAddTrack(e) {
-        return tracks.addTrack(e.track);
-      };
-
-      var handleRemoveTrack = function handleRemoveTrack(e) {
-        return tracks.removeTrack(e.track);
-      };
-
-      remoteTracks.on('addtrack', handleAddTrack);
-      remoteTracks.on('removetrack', handleRemoveTrack);
-      this.addWebVttScript_();
-
-      var updateDisplay = function updateDisplay() {
-        return _this6.trigger('texttrackchange');
-      };
-
-      var textTracksChanges = function textTracksChanges() {
-        updateDisplay();
-
-        for (var i = 0; i < tracks.length; i++) {
-          var track = tracks[i];
-          track.removeEventListener('cuechange', updateDisplay);
-
-          if (track.mode === 'showing') {
-            track.addEventListener('cuechange', updateDisplay);
-          }
-        }
-      };
-
-      textTracksChanges();
-      tracks.addEventListener('change', textTracksChanges);
-      tracks.addEventListener('addtrack', textTracksChanges);
-      tracks.addEventListener('removetrack', textTracksChanges);
-      this.on('dispose', function () {
-        remoteTracks.off('addtrack', handleAddTrack);
-        remoteTracks.off('removetrack', handleRemoveTrack);
-        tracks.removeEventListener('change', textTracksChanges);
-        tracks.removeEventListener('addtrack', textTracksChanges);
-        tracks.removeEventListener('removetrack', textTracksChanges);
-
-        for (var i = 0; i < tracks.length; i++) {
-          var track = tracks[i];
-          track.removeEventListener('cuechange', updateDisplay);
-        }
-      });
-    }
-    /**
-     * Create and returns a remote {@link TextTrack} object.
+     * @param {Tech} self
+     *        An instance of the Tech class.
      *
      * @param {string} kind
      *        `TextTrack` kind (subtitles, captions, descriptions, chapters, or metadata)
@@ -11698,309 +10010,898 @@
      * @param {string} [language]
      *        Two letter language abbreviation
      *
+     * @param {Object} [options={}]
+     *        An object with additional text track options
+     *
      * @return {TextTrack}
-     *         The TextTrack that gets created.
+     *          The text track that was created.
      */
-    ;
-
-    _proto.addTextTrack = function addTextTrack(kind, label, language) {
-      if (!kind) {
-        throw new Error('TextTrack kind is required but was not provided');
-      }
-
-      return createTrackHelper(this, kind, label, language);
+    function createTrackHelper(self, kind, label, language, options = {}) {
+        const tracks = self.textTracks();
+        options.kind = kind;
+        if (label) {
+            options.label = label;
+        }
+        if (language) {
+            options.language = language;
+        }
+        options.tech = self;
+        const track = new ALL.text.TrackClass(options);
+        tracks.addTrack(track);
+        return track;
     }
+
     /**
-     * Create an emulated TextTrack for use by addRemoteTextTrack
+     * This is the base class for media playback technology controllers, such as
+     * {@link HTML5}
      *
-     * This is intended to be overridden by classes that inherit from
-     * Tech in order to create native or custom TextTracks.
-     *
-     * @param {Object} options
-     *        The object should contain the options to initialize the TextTrack with.
-     *
-     * @param {string} [options.kind]
-     *        `TextTrack` kind (subtitles, captions, descriptions, chapters, or metadata).
-     *
-     * @param {string} [options.label].
-     *        Label to identify the text track
-     *
-     * @param {string} [options.language]
-     *        Two letter language abbreviation.
-     *
-     * @return {HTMLTrackElement}
-     *         The track element that gets created.
+     * @extends Component
      */
-    ;
+    class Tech extends Component$1 {
+        /**
+         * Create an instance of this Tech.
+         *
+         * @param {Object} [options]
+         *        The key/value store of player options.
+         *
+         * @param {Function} [ready]
+         *        Callback function to call when the `HTML5` Tech is ready.
+         */
+        constructor(options = {}, ready = function () {}) {
+            // we don't want the tech to report user activity automatically.
+            // This is done manually in addControlsListeners
+            options.reportTouchActivity = false;
+            super(null, options, ready);
+            this.onDurationChange_ = e => this.onDurationChange(e);
+            this.trackProgress_ = e => this.trackProgress(e);
+            this.trackCurrentTime_ = e => this.trackCurrentTime(e);
+            this.stopTrackingCurrentTime_ = e => this.stopTrackingCurrentTime(e);
+            this.disposeSourceHandler_ = e => this.disposeSourceHandler(e);
+            this.queuedHanders_ = new Set();
 
-    _proto.createRemoteTextTrack = function createRemoteTextTrack(options) {
-      var track = mergeOptions$3(options, {
-        tech: this
-      });
-      return new REMOTE.remoteTextEl.TrackClass(track);
-    }
-    /**
-     * Creates a remote text track object and returns an html track element.
-     *
-     * > Note: This can be an emulated {@link HTMLTrackElement} or a native one.
-     *
-     * @param {Object} options
-     *        See {@link Tech#createRemoteTextTrack} for more detailed properties.
-     *
-     * @param {boolean} [manualCleanup=true]
-     *        - When false: the TextTrack will be automatically removed from the video
-     *          element whenever the source changes
-     *        - When True: The TextTrack will have to be cleaned up manually
-     *
-     * @return {HTMLTrackElement}
-     *         An Html Track Element.
-     *
-     * @deprecated The default functionality for this function will be equivalent
-     *             to "manualCleanup=false" in the future. The manualCleanup parameter will
-     *             also be removed.
-     */
-    ;
+            // keep track of whether the current source has played at all to
+            // implement a very limited played()
+            this.hasStarted_ = false;
+            this.on('playing', function () {
+                this.hasStarted_ = true;
+            });
+            this.on('loadstart', function () {
+                this.hasStarted_ = false;
+            });
+            ALL.names.forEach(name => {
+                const props = ALL[name];
+                if (options && options[props.getterName]) {
+                    this[props.privateName] = options[props.getterName];
+                }
+            });
 
-    _proto.addRemoteTextTrack = function addRemoteTextTrack(options, manualCleanup) {
-      var _this7 = this;
+            // Manually track progress in cases where the browser/tech doesn't report it.
+            if (!this.featuresProgressEvents) {
+                this.manualProgressOn();
+            }
 
-      if (options === void 0) {
-        options = {};
-      }
+            // Manually track timeupdates in cases where the browser/tech doesn't report it.
+            if (!this.featuresTimeupdateEvents) {
+                this.manualTimeUpdatesOn();
+            }
+            ['Text', 'Audio', 'Video'].forEach(track => {
+                if (options[`native${track}Tracks`] === false) {
+                    this[`featuresNative${track}Tracks`] = false;
+                }
+            });
+            if (options.nativeCaptions === false || options.nativeTextTracks === false) {
+                this.featuresNativeTextTracks = false;
+            } else if (options.nativeCaptions === true || options.nativeTextTracks === true) {
+                this.featuresNativeTextTracks = true;
+            }
+            if (!this.featuresNativeTextTracks) {
+                this.emulateTextTracks();
+            }
+            this.preloadTextTracks = options.preloadTextTracks !== false;
+            this.autoRemoteTextTracks_ = new ALL.text.ListClass();
+            this.initTrackListeners();
 
-      var htmlTrackElement = this.createRemoteTextTrack(options);
+            // Turn on component tap events only if not using native controls
+            if (!options.nativeControlsForTouch) {
+                this.emitTapEvents();
+            }
+            if (this.constructor) {
+                this.name_ = this.constructor.name || 'Unknown Tech';
+            }
+        }
 
-      if (manualCleanup !== true && manualCleanup !== false) {
-        // deprecation warning
-        log$1.warn('Calling addRemoteTextTrack without explicitly setting the "manualCleanup" parameter to `true` is deprecated and default to `false` in future version of video.js');
-        manualCleanup = true;
-      } // store HTMLTrackElement and TextTrack to remote list
+        /**
+         * A special function to trigger source set in a way that will allow player
+         * to re-trigger if the player or tech are not ready yet.
+         *
+         * @fires Tech#sourceset
+         * @param {string} src The source string at the time of the source changing.
+         */
+        triggerSourceset(src) {
+            if (!this.isReady_) {
+                // on initial ready we have to trigger source set
+                // 1ms after ready so that player can watch for it.
+                this.one('ready', () => this.setTimeout(() => this.triggerSourceset(src), 1));
+            }
 
+            /**
+             * Fired when the source is set on the tech causing the media element
+             * to reload.
+             *
+             * @see {@link Player#event:sourceset}
+             * @event Tech#sourceset
+             * @type {Event}
+             */
+            this.trigger({
+                src,
+                type: 'sourceset'
+            });
+        }
 
-      this.remoteTextTrackEls().addTrackElement_(htmlTrackElement);
-      this.remoteTextTracks().addTrack(htmlTrackElement.track);
+        /* Fallbacks for unsupported event types
+    ================================================================================ */
 
-      if (manualCleanup !== true) {
-        // create the TextTrackList if it doesn't exist
-        this.ready(function () {
-          return _this7.autoRemoteTextTracks_.addTrack(htmlTrackElement.track);
-        });
-      }
+        /**
+         * Polyfill the `progress` event for browsers that don't support it natively.
+         *
+         * @see {@link Tech#trackProgress}
+         */
+        manualProgressOn() {
+            this.on('durationchange', this.onDurationChange_);
+            this.manualProgress = true;
 
-      return htmlTrackElement;
-    }
-    /**
-     * Remove a remote text track from the remote `TextTrackList`.
-     *
-     * @param {TextTrack} track
-     *        `TextTrack` to remove from the `TextTrackList`
-     */
-    ;
+            // Trigger progress watching when a source begins loading
+            this.one('ready', this.trackProgress_);
+        }
 
-    _proto.removeRemoteTextTrack = function removeRemoteTextTrack(track) {
-      var trackElement = this.remoteTextTrackEls().getTrackElementByTrack_(track); // remove HTMLTrackElement and TextTrack from remote list
+        /**
+         * Turn off the polyfill for `progress` events that was created in
+         * {@link Tech#manualProgressOn}
+         */
+        manualProgressOff() {
+            this.manualProgress = false;
+            this.stopTrackingProgress();
+            this.off('durationchange', this.onDurationChange_);
+        }
 
-      this.remoteTextTrackEls().removeTrackElement_(trackElement);
-      this.remoteTextTracks().removeTrack(track);
-      this.autoRemoteTextTracks_.removeTrack(track);
-    }
-    /**
-     * Gets available media playback quality metrics as specified by the W3C's Media
-     * Playback Quality API.
-     *
-     * @see [Spec]{@link https://wicg.github.io/media-playback-quality}
-     *
-     * @return {Object}
-     *         An object with supported media playback quality metrics
-     *
-     * @abstract
-     */
-    ;
+        /**
+         * This is used to trigger a `progress` event when the buffered percent changes. It
+         * sets an interval function that will be called every 500 milliseconds to check if the
+         * buffer end percent has changed.
+         *
+         * > This function is called by {@link Tech#manualProgressOn}
+         *
+         * @param {Event} event
+         *        The `ready` event that caused this to run.
+         *
+         * @listens Tech#ready
+         * @fires Tech#progress
+         */
+        trackProgress(event) {
+            this.stopTrackingProgress();
+            this.progressInterval = this.setInterval(bind_(this, function () {
+                // Don't trigger unless buffered amount is greater than last time
 
-    _proto.getVideoPlaybackQuality = function getVideoPlaybackQuality() {
-      return {};
-    }
-    /**
-     * Attempt to create a floating video window always on top of other windows
-     * so that users may continue consuming media while they interact with other
-     * content sites, or applications on their device.
-     *
-     * @see [Spec]{@link https://wicg.github.io/picture-in-picture}
-     *
-     * @return {Promise|undefined}
-     *         A promise with a Picture-in-Picture window if the browser supports
-     *         Promises (or one was passed in as an option). It returns undefined
-     *         otherwise.
-     *
-     * @abstract
-     */
-    ;
+                const numBufferedPercent = this.bufferedPercent();
+                if (this.bufferedPercent_ !== numBufferedPercent) {
+                    /**
+                     * See {@link Player#progress}
+                     *
+                     * @event Tech#progress
+                     * @type {Event}
+                     */
+                    this.trigger('progress');
+                }
+                this.bufferedPercent_ = numBufferedPercent;
+                if (numBufferedPercent === 1) {
+                    this.stopTrackingProgress();
+                }
+            }), 500);
+        }
 
-    _proto.requestPictureInPicture = function requestPictureInPicture() {
-      var PromiseClass = this.options_.Promise || window.Promise;
+        /**
+         * Update our internal duration on a `durationchange` event by calling
+         * {@link Tech#duration}.
+         *
+         * @param {Event} event
+         *        The `durationchange` event that caused this to run.
+         *
+         * @listens Tech#durationchange
+         */
+        onDurationChange(event) {
+            this.duration_ = this.duration();
+        }
 
-      if (PromiseClass) {
-        return PromiseClass.reject();
-      }
-    }
-    /**
-     * A method to check for the value of the 'disablePictureInPicture' <video> property.
-     * Defaults to true, as it should be considered disabled if the tech does not support pip
-     *
-     * @abstract
-     */
-    ;
+        /**
+         * Get and create a `TimeRange` object for buffering.
+         *
+         * @return { import('../utils/time').TimeRange }
+         *         The time range object that was created.
+         */
+        buffered() {
+            return createTimeRanges$1(0, 0);
+        }
 
-    _proto.disablePictureInPicture = function disablePictureInPicture() {
-      return true;
-    }
-    /**
-     * A method to set or unset the 'disablePictureInPicture' <video> property.
-     *
-     * @abstract
-     */
-    ;
+        /**
+         * Get the percentage of the current video that is currently buffered.
+         *
+         * @return {number}
+         *         A number from 0 to 1 that represents the decimal percentage of the
+         *         video that is buffered.
+         *
+         */
+        bufferedPercent() {
+            return bufferedPercent(this.buffered(), this.duration_);
+        }
 
-    _proto.setDisablePictureInPicture = function setDisablePictureInPicture() {}
-    /**
-     * A fallback implementation of requestVideoFrameCallback using requestAnimationFrame
-     *
-     * @param {function} cb
-     * @return {number} request id
-     */
-    ;
+        /**
+         * Turn off the polyfill for `progress` events that was created in
+         * {@link Tech#manualProgressOn}
+         * Stop manually tracking progress events by clearing the interval that was set in
+         * {@link Tech#trackProgress}.
+         */
+        stopTrackingProgress() {
+            this.clearInterval(this.progressInterval);
+        }
 
-    _proto.requestVideoFrameCallback = function requestVideoFrameCallback(cb) {
-      var _this8 = this;
+        /**
+         * Polyfill the `timeupdate` event for browsers that don't support it.
+         *
+         * @see {@link Tech#trackCurrentTime}
+         */
+        manualTimeUpdatesOn() {
+            this.manualTimeUpdates = true;
+            this.on('play', this.trackCurrentTime_);
+            this.on('pause', this.stopTrackingCurrentTime_);
+        }
 
-      var id = newGUID();
+        /**
+         * Turn off the polyfill for `timeupdate` events that was created in
+         * {@link Tech#manualTimeUpdatesOn}
+         */
+        manualTimeUpdatesOff() {
+            this.manualTimeUpdates = false;
+            this.stopTrackingCurrentTime();
+            this.off('play', this.trackCurrentTime_);
+            this.off('pause', this.stopTrackingCurrentTime_);
+        }
 
-      if (!this.isReady_ || this.paused()) {
-        this.queuedHanders_.add(id);
-        this.one('playing', function () {
-          if (_this8.queuedHanders_.has(id)) {
-            _this8.queuedHanders_["delete"](id);
+        /**
+         * Sets up an interval function to track current time and trigger `timeupdate` every
+         * 250 milliseconds.
+         *
+         * @listens Tech#play
+         * @triggers Tech#timeupdate
+         */
+        trackCurrentTime() {
+            if (this.currentTimeInterval) {
+                this.stopTrackingCurrentTime();
+            }
+            this.currentTimeInterval = this.setInterval(function () {
+                /**
+                 * Triggered at an interval of 250ms to indicated that time is passing in the video.
+                 *
+                 * @event Tech#timeupdate
+                 * @type {Event}
+                 */
+                this.trigger({
+                    type: 'timeupdate',
+                    target: this,
+                    manuallyTriggered: true
+                });
 
-            cb();
-          }
-        });
-      } else {
-        this.requestNamedAnimationFrame(id, cb);
-      }
+                // 42 = 24 fps // 250 is what Webkit uses // FF uses 15
+            }, 250);
+        }
 
-      return id;
-    }
-    /**
-     * A fallback implementation of cancelVideoFrameCallback
-     *
-     * @param {number} id id of callback to be cancelled
-     */
-    ;
+        /**
+         * Stop the interval function created in {@link Tech#trackCurrentTime} so that the
+         * `timeupdate` event is no longer triggered.
+         *
+         * @listens {Tech#pause}
+         */
+        stopTrackingCurrentTime() {
+            this.clearInterval(this.currentTimeInterval);
 
-    _proto.cancelVideoFrameCallback = function cancelVideoFrameCallback(id) {
-      if (this.queuedHanders_.has(id)) {
-        this.queuedHanders_["delete"](id);
-      } else {
-        this.cancelNamedAnimationFrame(id);
-      }
-    }
-    /**
-     * A method to set a poster from a `Tech`.
-     *
-     * @abstract
-     */
-    ;
+            // #1002 - if the video ends right before the next timeupdate would happen,
+            // the progress bar won't make it all the way to the end
+            this.trigger({
+                type: 'timeupdate',
+                target: this,
+                manuallyTriggered: true
+            });
+        }
 
-    _proto.setPoster = function setPoster() {}
-    /**
-     * A method to check for the presence of the 'playsinline' <video> attribute.
-     *
-     * @abstract
-     */
-    ;
+        /**
+         * Turn off all event polyfills, clear the `Tech`s {@link AudioTrackList},
+         * {@link VideoTrackList}, and {@link TextTrackList}, and dispose of this Tech.
+         *
+         * @fires Component#dispose
+         */
+        dispose() {
+            // clear out all tracks because we can't reuse them between techs
+            this.clearTracks(NORMAL.names);
 
-    _proto.playsinline = function playsinline() {}
-    /**
-     * A method to set or unset the 'playsinline' <video> attribute.
-     *
-     * @abstract
-     */
-    ;
+            // Turn off any manual progress or timeupdate tracking
+            if (this.manualProgress) {
+                this.manualProgressOff();
+            }
+            if (this.manualTimeUpdates) {
+                this.manualTimeUpdatesOff();
+            }
+            super.dispose();
+        }
 
-    _proto.setPlaysinline = function setPlaysinline() {}
-    /**
-     * Attempt to force override of native audio tracks.
-     *
-     * @param {boolean} override - If set to true native audio will be overridden,
-     * otherwise native audio will potentially be used.
-     *
-     * @abstract
-     */
-    ;
+        /**
+         * Clear out a single `TrackList` or an array of `TrackLists` given their names.
+         *
+         * > Note: Techs without source handlers should call this between sources for `video`
+         *         & `audio` tracks. You don't want to use them between tracks!
+         *
+         * @param {string[]|string} types
+         *        TrackList names to clear, valid names are `video`, `audio`, and
+         *        `text`.
+         */
+        clearTracks(types) {
+            types = [].concat(types);
+            // clear out all tracks because we can't reuse them between techs
+            types.forEach(type => {
+                const list = this[`${type}Tracks`]() || [];
+                let i = list.length;
+                while (i--) {
+                    const track = list[i];
+                    if (type === 'text') {
+                        this.removeRemoteTextTrack(track);
+                    }
+                    list.removeTrack(track);
+                }
+            });
+        }
 
-    _proto.overrideNativeAudioTracks = function overrideNativeAudioTracks() {}
-    /**
-     * Attempt to force override of native video tracks.
-     *
-     * @param {boolean} override - If set to true native video will be overridden,
-     * otherwise native video will potentially be used.
-     *
-     * @abstract
-     */
-    ;
+        /**
+         * Remove any TextTracks added via addRemoteTextTrack that are
+         * flagged for automatic garbage collection
+         */
+        cleanupAutoTextTracks() {
+            const list = this.autoRemoteTextTracks_ || [];
+            let i = list.length;
+            while (i--) {
+                const track = list[i];
+                this.removeRemoteTextTrack(track);
+            }
+        }
 
-    _proto.overrideNativeVideoTracks = function overrideNativeVideoTracks() {}
-    /*
-     * Check if the tech can support the given mime-type.
-     *
-     * The base tech does not support any type, but source handlers might
-     * overwrite this.
-     *
-     * @param  {string} type
-     *         The mimetype to check for support
-     *
-     * @return {string}
-     *         'probably', 'maybe', or empty string
-     *
-     * @see [Spec]{@link https://developer.mozilla.org/en-US/docs/Web/API/HTMLMediaElement/canPlayType}
-     *
-     * @abstract
-     */
-    ;
+        /**
+         * Reset the tech, which will removes all sources and reset the internal readyState.
+         *
+         * @abstract
+         */
+        reset() {}
 
-    _proto.canPlayType = function canPlayType() {
-      return '';
-    }
-    /**
-     * Check if the type is supported by this tech.
-     *
-     * The base tech does not support any type, but source handlers might
-     * overwrite this.
-     *
-     * @param {string} type
-     *        The media type to check
-     * @return {string} Returns the native video element's response
-     */
-    ;
+        /**
+         * Get the value of `crossOrigin` from the tech.
+         *
+         * @abstract
+         *
+         * @see {Html5#crossOrigin}
+         */
+        crossOrigin() {}
 
-    Tech.canPlayType = function canPlayType() {
-      return '';
-    }
-    /**
-     * Check if the tech can support the given source
-     *
-     * @param {Object} srcObj
-     *        The source object
-     * @param {Object} options
-     *        The options passed to the tech
-     * @return {string} 'probably', 'maybe', or '' (empty string)
-     */
-    ;
+        /**
+         * Set the value of `crossOrigin` on the tech.
+         *
+         * @abstract
+         *
+         * @param {string} crossOrigin the crossOrigin value
+         * @see {Html5#setCrossOrigin}
+         */
+        setCrossOrigin() {}
 
-    Tech.canPlaySource = function canPlaySource(srcObj, options) {
-      return Tech.canPlayType(srcObj.type);
-    }
-    /*
+        /**
+         * Get or set an error on the Tech.
+         *
+         * @param {MediaError} [err]
+         *        Error to set on the Tech
+         *
+         * @return {MediaError|null}
+         *         The current error object on the tech, or null if there isn't one.
+         */
+        error(err) {
+            if (err !== undefined) {
+                this.error_ = new MediaError(err);
+                this.trigger('error');
+            }
+            return this.error_;
+        }
+
+        /**
+         * Returns the `TimeRange`s that have been played through for the current source.
+         *
+         * > NOTE: This implementation is incomplete. It does not track the played `TimeRange`.
+         *         It only checks whether the source has played at all or not.
+         *
+         * @return {TimeRange}
+         *         - A single time range if this video has played
+         *         - An empty set of ranges if not.
+         */
+        played() {
+            if (this.hasStarted_) {
+                return createTimeRanges$1(0, 0);
+            }
+            return createTimeRanges$1();
+        }
+
+        /**
+         * Start playback
+         *
+         * @abstract
+         *
+         * @see {Html5#play}
+         */
+        play() {}
+
+        /**
+         * Set whether we are scrubbing or not
+         *
+         * @abstract
+         * @param {boolean} _isScrubbing
+         *                  - true for we are currently scrubbing
+         *                  - false for we are no longer scrubbing
+         *
+         * @see {Html5#setScrubbing}
+         */
+        setScrubbing(_isScrubbing) {}
+
+        /**
+         * Get whether we are scrubbing or not
+         *
+         * @abstract
+         *
+         * @see {Html5#scrubbing}
+         */
+        scrubbing() {}
+
+        /**
+         * Causes a manual time update to occur if {@link Tech#manualTimeUpdatesOn} was
+         * previously called.
+         *
+         * @param {number} _seconds
+         *        Set the current time of the media to this.
+         * @fires Tech#timeupdate
+         */
+        setCurrentTime(_seconds) {
+            // improve the accuracy of manual timeupdates
+            if (this.manualTimeUpdates) {
+                /**
+                 * A manual `timeupdate` event.
+                 *
+                 * @event Tech#timeupdate
+                 * @type {Event}
+                 */
+                this.trigger({
+                    type: 'timeupdate',
+                    target: this,
+                    manuallyTriggered: true
+                });
+            }
+        }
+
+        /**
+         * Turn on listeners for {@link VideoTrackList}, {@link {AudioTrackList}, and
+         * {@link TextTrackList} events.
+         *
+         * This adds {@link EventTarget~EventListeners} for `addtrack`, and  `removetrack`.
+         *
+         * @fires Tech#audiotrackchange
+         * @fires Tech#videotrackchange
+         * @fires Tech#texttrackchange
+         */
+        initTrackListeners() {
+            /**
+             * Triggered when tracks are added or removed on the Tech {@link AudioTrackList}
+             *
+             * @event Tech#audiotrackchange
+             * @type {Event}
+             */
+
+            /**
+             * Triggered when tracks are added or removed on the Tech {@link VideoTrackList}
+             *
+             * @event Tech#videotrackchange
+             * @type {Event}
+             */
+
+            /**
+             * Triggered when tracks are added or removed on the Tech {@link TextTrackList}
+             *
+             * @event Tech#texttrackchange
+             * @type {Event}
+             */
+            NORMAL.names.forEach(name => {
+                const props = NORMAL[name];
+                const trackListChanges = () => {
+                    this.trigger(`${name}trackchange`);
+                };
+                const tracks = this[props.getterName]();
+                tracks.addEventListener('removetrack', trackListChanges);
+                tracks.addEventListener('addtrack', trackListChanges);
+                this.on('dispose', () => {
+                    tracks.removeEventListener('removetrack', trackListChanges);
+                    tracks.removeEventListener('addtrack', trackListChanges);
+                });
+            });
+        }
+
+        /**
+         * Emulate TextTracks using vtt.js if necessary
+         *
+         * @fires Tech#vttjsloaded
+         * @fires Tech#vttjserror
+         */
+        addWebVttScript_() {
+            if (window.WebVTT) {
+                return;
+            }
+
+            // Initially, Tech.el_ is a child of a dummy-div wait until the Component system
+            // signals that the Tech is ready at which point Tech.el_ is part of the DOM
+            // before inserting the WebVTT script
+            if (document.body.contains(this.el())) {
+                // load via require if available and vtt.js script location was not passed in
+                // as an option. novtt builds will turn the above require call into an empty object
+                // which will cause this if check to always fail.
+                if (!this.options_['vtt.js'] && isPlain(browserIndex) && Object.keys(browserIndex).length > 0) {
+                    this.trigger('vttjsloaded');
+                    return;
+                }
+
+                // load vtt.js via the script location option or the cdn of no location was
+                // passed in
+                const script = document.createElement('script');
+                script.src = this.options_['vtt.js'] || 'https://vjs.zencdn.net/vttjs/0.14.1/vtt.min.js';
+                script.onload = () => {
+                    /**
+                     * Fired when vtt.js is loaded.
+                     *
+                     * @event Tech#vttjsloaded
+                     * @type {Event}
+                     */
+                    this.trigger('vttjsloaded');
+                };
+                script.onerror = () => {
+                    /**
+                     * Fired when vtt.js was not loaded due to an error
+                     *
+                     * @event Tech#vttjsloaded
+                     * @type {Event}
+                     */
+                    this.trigger('vttjserror');
+                };
+                this.on('dispose', () => {
+                    script.onload = null;
+                    script.onerror = null;
+                });
+                // but have not loaded yet and we set it to true before the inject so that
+                // we don't overwrite the injected window.WebVTT if it loads right away
+                window.WebVTT = true;
+                this.el().parentNode.appendChild(script);
+            } else {
+                this.ready(this.addWebVttScript_);
+            }
+        }
+
+        /**
+         * Emulate texttracks
+         *
+         */
+        emulateTextTracks() {
+            const tracks = this.textTracks();
+            const remoteTracks = this.remoteTextTracks();
+            const handleAddTrack = e => tracks.addTrack(e.track);
+            const handleRemoveTrack = e => tracks.removeTrack(e.track);
+            remoteTracks.on('addtrack', handleAddTrack);
+            remoteTracks.on('removetrack', handleRemoveTrack);
+            this.addWebVttScript_();
+            const updateDisplay = () => this.trigger('texttrackchange');
+            const textTracksChanges = () => {
+                updateDisplay();
+                for (let i = 0; i < tracks.length; i++) {
+                    const track = tracks[i];
+                    track.removeEventListener('cuechange', updateDisplay);
+                    if (track.mode === 'showing') {
+                        track.addEventListener('cuechange', updateDisplay);
+                    }
+                }
+            };
+            textTracksChanges();
+            tracks.addEventListener('change', textTracksChanges);
+            tracks.addEventListener('addtrack', textTracksChanges);
+            tracks.addEventListener('removetrack', textTracksChanges);
+            this.on('dispose', function () {
+                remoteTracks.off('addtrack', handleAddTrack);
+                remoteTracks.off('removetrack', handleRemoveTrack);
+                tracks.removeEventListener('change', textTracksChanges);
+                tracks.removeEventListener('addtrack', textTracksChanges);
+                tracks.removeEventListener('removetrack', textTracksChanges);
+                for (let i = 0; i < tracks.length; i++) {
+                    const track = tracks[i];
+                    track.removeEventListener('cuechange', updateDisplay);
+                }
+            });
+        }
+
+        /**
+         * Create and returns a remote {@link TextTrack} object.
+         *
+         * @param {string} kind
+         *        `TextTrack` kind (subtitles, captions, descriptions, chapters, or metadata)
+         *
+         * @param {string} [label]
+         *        Label to identify the text track
+         *
+         * @param {string} [language]
+         *        Two letter language abbreviation
+         *
+         * @return {TextTrack}
+         *         The TextTrack that gets created.
+         */
+        addTextTrack(kind, label, language) {
+            if (!kind) {
+                throw new Error('TextTrack kind is required but was not provided');
+            }
+            return createTrackHelper(this, kind, label, language);
+        }
+
+        /**
+         * Create an emulated TextTrack for use by addRemoteTextTrack
+         *
+         * This is intended to be overridden by classes that inherit from
+         * Tech in order to create native or custom TextTracks.
+         *
+         * @param {Object} options
+         *        The object should contain the options to initialize the TextTrack with.
+         *
+         * @param {string} [options.kind]
+         *        `TextTrack` kind (subtitles, captions, descriptions, chapters, or metadata).
+         *
+         * @param {string} [options.label].
+         *        Label to identify the text track
+         *
+         * @param {string} [options.language]
+         *        Two letter language abbreviation.
+         *
+         * @return {HTMLTrackElement}
+         *         The track element that gets created.
+         */
+        createRemoteTextTrack(options) {
+            const track = merge$2(options, {
+                tech: this
+            });
+            return new REMOTE.remoteTextEl.TrackClass(track);
+        }
+
+        /**
+         * Creates a remote text track object and returns an html track element.
+         *
+         * > Note: This can be an emulated {@link HTMLTrackElement} or a native one.
+         *
+         * @param {Object} options
+         *        See {@link Tech#createRemoteTextTrack} for more detailed properties.
+         *
+         * @param {boolean} [manualCleanup=false]
+         *        - When false: the TextTrack will be automatically removed from the video
+         *          element whenever the source changes
+         *        - When True: The TextTrack will have to be cleaned up manually
+         *
+         * @return {HTMLTrackElement}
+         *         An Html Track Element.
+         *
+         */
+        addRemoteTextTrack(options = {}, manualCleanup) {
+            const htmlTrackElement = this.createRemoteTextTrack(options);
+            if (typeof manualCleanup !== 'boolean') {
+                manualCleanup = false;
+            }
+
+            // store HTMLTrackElement and TextTrack to remote list
+            this.remoteTextTrackEls().addTrackElement_(htmlTrackElement);
+            this.remoteTextTracks().addTrack(htmlTrackElement.track);
+            if (manualCleanup === false) {
+                // create the TextTrackList if it doesn't exist
+                this.ready(() => this.autoRemoteTextTracks_.addTrack(htmlTrackElement.track));
+            }
+            return htmlTrackElement;
+        }
+
+        /**
+         * Remove a remote text track from the remote `TextTrackList`.
+         *
+         * @param {TextTrack} track
+         *        `TextTrack` to remove from the `TextTrackList`
+         */
+        removeRemoteTextTrack(track) {
+            const trackElement = this.remoteTextTrackEls().getTrackElementByTrack_(track);
+
+            // remove HTMLTrackElement and TextTrack from remote list
+            this.remoteTextTrackEls().removeTrackElement_(trackElement);
+            this.remoteTextTracks().removeTrack(track);
+            this.autoRemoteTextTracks_.removeTrack(track);
+        }
+
+        /**
+         * Gets available media playback quality metrics as specified by the W3C's Media
+         * Playback Quality API.
+         *
+         * @see [Spec]{@link https://wicg.github.io/media-playback-quality}
+         *
+         * @return {Object}
+         *         An object with supported media playback quality metrics
+         *
+         * @abstract
+         */
+        getVideoPlaybackQuality() {
+            return {};
+        }
+
+        /**
+         * Attempt to create a floating video window always on top of other windows
+         * so that users may continue consuming media while they interact with other
+         * content sites, or applications on their device.
+         *
+         * @see [Spec]{@link https://wicg.github.io/picture-in-picture}
+         *
+         * @return {Promise|undefined}
+         *         A promise with a Picture-in-Picture window if the browser supports
+         *         Promises (or one was passed in as an option). It returns undefined
+         *         otherwise.
+         *
+         * @abstract
+         */
+        requestPictureInPicture() {
+            return Promise.reject();
+        }
+
+        /**
+         * A method to check for the value of the 'disablePictureInPicture' <video> property.
+         * Defaults to true, as it should be considered disabled if the tech does not support pip
+         *
+         * @abstract
+         */
+        disablePictureInPicture() {
+            return true;
+        }
+
+        /**
+         * A method to set or unset the 'disablePictureInPicture' <video> property.
+         *
+         * @abstract
+         */
+        setDisablePictureInPicture() {}
+
+        /**
+         * A fallback implementation of requestVideoFrameCallback using requestAnimationFrame
+         *
+         * @param {function} cb
+         * @return {number} request id
+         */
+        requestVideoFrameCallback(cb) {
+            const id = newGUID();
+            if (!this.isReady_ || this.paused()) {
+                this.queuedHanders_.add(id);
+                this.one('playing', () => {
+                    if (this.queuedHanders_.has(id)) {
+                        this.queuedHanders_.delete(id);
+                        cb();
+                    }
+                });
+            } else {
+                this.requestNamedAnimationFrame(id, cb);
+            }
+            return id;
+        }
+
+        /**
+         * A fallback implementation of cancelVideoFrameCallback
+         *
+         * @param {number} id id of callback to be cancelled
+         */
+        cancelVideoFrameCallback(id) {
+            if (this.queuedHanders_.has(id)) {
+                this.queuedHanders_.delete(id);
+            } else {
+                this.cancelNamedAnimationFrame(id);
+            }
+        }
+
+        /**
+         * A method to set a poster from a `Tech`.
+         *
+         * @abstract
+         */
+        setPoster() {}
+
+        /**
+         * A method to check for the presence of the 'playsinline' <video> attribute.
+         *
+         * @abstract
+         */
+        playsinline() {}
+
+        /**
+         * A method to set or unset the 'playsinline' <video> attribute.
+         *
+         * @abstract
+         */
+        setPlaysinline() {}
+
+        /**
+         * Attempt to force override of native audio tracks.
+         *
+         * @param {boolean} override - If set to true native audio will be overridden,
+         * otherwise native audio will potentially be used.
+         *
+         * @abstract
+         */
+        overrideNativeAudioTracks(override) {}
+
+        /**
+         * Attempt to force override of native video tracks.
+         *
+         * @param {boolean} override - If set to true native video will be overridden,
+         * otherwise native video will potentially be used.
+         *
+         * @abstract
+         */
+        overrideNativeVideoTracks(override) {}
+
+        /**
+         * Check if the tech can support the given mime-type.
+         *
+         * The base tech does not support any type, but source handlers might
+         * overwrite this.
+         *
+         * @param  {string} _type
+         *         The mimetype to check for support
+         *
+         * @return {string}
+         *         'probably', 'maybe', or empty string
+         *
+         * @see [Spec]{@link https://developer.mozilla.org/en-US/docs/Web/API/HTMLMediaElement/canPlayType}
+         *
+         * @abstract
+         */
+        canPlayType(_type) {
+            return '';
+        }
+
+        /**
+         * Check if the type is supported by this tech.
+         *
+         * The base tech does not support any type, but source handlers might
+         * overwrite this.
+         *
+         * @param {string} _type
+         *        The media type to check
+         * @return {string} Returns the native video element's response
+         */
+        static canPlayType(_type) {
+            return '';
+        }
+
+        /**
+         * Check if the tech can support the given source
+         *
+         * @param {Object} srcObj
+         *        The source object
+         * @param {Object} options
+         *        The options passed to the tech
+         * @return {string} 'probably', 'maybe', or '' (empty string)
+         */
+        static canPlaySource(srcObj, options) {
+            return Tech.canPlayType(srcObj.type);
+        }
+
+        /*
      * Return whether the argument is a Tech or not.
      * Can be passed either a Class like `Html5` or a instance like `player.tech_`
      *
@@ -12012,15859 +10913,10947 @@
      *         - True if it is a tech
      *         - False if it is not
      */
-    ;
-
-    Tech.isTech = function isTech(component) {
-      return component.prototype instanceof Tech || component instanceof Tech || component === Tech;
-    }
-    /**
-     * Registers a `Tech` into a shared list for videojs.
-     *
-     * @param {string} name
-     *        Name of the `Tech` to register.
-     *
-     * @param {Object} tech
-     *        The `Tech` class to register.
-     */
-    ;
-
-    Tech.registerTech = function registerTech(name, tech) {
-      if (!Tech.techs_) {
-        Tech.techs_ = {};
-      }
-
-      if (!Tech.isTech(tech)) {
-        throw new Error("Tech " + name + " must be a Tech");
-      }
-
-      if (!Tech.canPlayType) {
-        throw new Error('Techs must have a static canPlayType method on them');
-      }
-
-      if (!Tech.canPlaySource) {
-        throw new Error('Techs must have a static canPlaySource method on them');
-      }
-
-      name = toTitleCase$1(name);
-      Tech.techs_[name] = tech;
-      Tech.techs_[toLowerCase(name)] = tech;
-
-      if (name !== 'Tech') {
-        // camel case the techName for use in techOrder
-        Tech.defaultTechOrder_.push(name);
-      }
-
-      return tech;
-    }
-    /**
-     * Get a `Tech` from the shared list by name.
-     *
-     * @param {string} name
-     *        `camelCase` or `TitleCase` name of the Tech to get
-     *
-     * @return {Tech|undefined}
-     *         The `Tech` or undefined if there was no tech with the name requested.
-     */
-    ;
-
-    Tech.getTech = function getTech(name) {
-      if (!name) {
-        return;
-      }
-
-      if (Tech.techs_ && Tech.techs_[name]) {
-        return Tech.techs_[name];
-      }
-
-      name = toTitleCase$1(name);
-
-      if (window && window.videojs && window.videojs[name]) {
-        log$1.warn("The " + name + " tech was added to the videojs object when it should be registered using videojs.registerTech(name, tech)");
-        return window.videojs[name];
-      }
-    };
-
-    return Tech;
-  }(Component$1);
-  /**
-   * Get the {@link VideoTrackList}
-   *
-   * @returns {VideoTrackList}
-   * @method Tech.prototype.videoTracks
-   */
-
-  /**
-   * Get the {@link AudioTrackList}
-   *
-   * @returns {AudioTrackList}
-   * @method Tech.prototype.audioTracks
-   */
-
-  /**
-   * Get the {@link TextTrackList}
-   *
-   * @returns {TextTrackList}
-   * @method Tech.prototype.textTracks
-   */
-
-  /**
-   * Get the remote element {@link TextTrackList}
-   *
-   * @returns {TextTrackList}
-   * @method Tech.prototype.remoteTextTracks
-   */
-
-  /**
-   * Get the remote element {@link HtmlTrackElementList}
-   *
-   * @returns {HtmlTrackElementList}
-   * @method Tech.prototype.remoteTextTrackEls
-   */
-
-
-  ALL.names.forEach(function (name) {
-    var props = ALL[name];
-
-    Tech.prototype[props.getterName] = function () {
-      this[props.privateName] = this[props.privateName] || new props.ListClass();
-      return this[props.privateName];
-    };
-  });
-  /**
-   * List of associated text tracks
-   *
-   * @type {TextTrackList}
-   * @private
-   * @property Tech#textTracks_
-   */
-
-  /**
-   * List of associated audio tracks.
-   *
-   * @type {AudioTrackList}
-   * @private
-   * @property Tech#audioTracks_
-   */
-
-  /**
-   * List of associated video tracks.
-   *
-   * @type {VideoTrackList}
-   * @private
-   * @property Tech#videoTracks_
-   */
-
-  /**
-   * Boolean indicating whether the `Tech` supports volume control.
-   *
-   * @type {boolean}
-   * @default
-   */
-
-  Tech.prototype.featuresVolumeControl = true;
-  /**
-   * Boolean indicating whether the `Tech` supports muting volume.
-   *
-   * @type {bolean}
-   * @default
-   */
-
-  Tech.prototype.featuresMuteControl = true;
-  /**
-   * Boolean indicating whether the `Tech` supports fullscreen resize control.
-   * Resizing plugins using request fullscreen reloads the plugin
-   *
-   * @type {boolean}
-   * @default
-   */
-
-  Tech.prototype.featuresFullscreenResize = false;
-  /**
-   * Boolean indicating whether the `Tech` supports changing the speed at which the video
-   * plays. Examples:
-   *   - Set player to play 2x (twice) as fast
-   *   - Set player to play 0.5x (half) as fast
-   *
-   * @type {boolean}
-   * @default
-   */
-
-  Tech.prototype.featuresPlaybackRate = false;
-  /**
-   * Boolean indicating whether the `Tech` supports the `progress` event. This is currently
-   * not triggered by video-js-swf. This will be used to determine if
-   * {@link Tech#manualProgressOn} should be called.
-   *
-   * @type {boolean}
-   * @default
-   */
-
-  Tech.prototype.featuresProgressEvents = false;
-  /**
-   * Boolean indicating whether the `Tech` supports the `sourceset` event.
-   *
-   * A tech should set this to `true` and then use {@link Tech#triggerSourceset}
-   * to trigger a {@link Tech#event:sourceset} at the earliest time after getting
-   * a new source.
-   *
-   * @type {boolean}
-   * @default
-   */
-
-  Tech.prototype.featuresSourceset = false;
-  /**
-   * Boolean indicating whether the `Tech` supports the `timeupdate` event. This is currently
-   * not triggered by video-js-swf. This will be used to determine if
-   * {@link Tech#manualTimeUpdates} should be called.
-   *
-   * @type {boolean}
-   * @default
-   */
-
-  Tech.prototype.featuresTimeupdateEvents = false;
-  /**
-   * Boolean indicating whether the `Tech` supports the native `TextTrack`s.
-   * This will help us integrate with native `TextTrack`s if the browser supports them.
-   *
-   * @type {boolean}
-   * @default
-   */
-
-  Tech.prototype.featuresNativeTextTracks = false;
-  /**
-   * Boolean indicating whether the `Tech` supports `requestVideoFrameCallback`.
-   *
-   * @type {boolean}
-   * @default
-   */
-
-  Tech.prototype.featuresVideoFrameCallback = false;
-  /**
-   * A functional mixin for techs that want to use the Source Handler pattern.
-   * Source handlers are scripts for handling specific formats.
-   * The source handler pattern is used for adaptive formats (HLS, DASH) that
-   * manually load video data and feed it into a Source Buffer (Media Source Extensions)
-   * Example: `Tech.withSourceHandlers.call(MyTech);`
-   *
-   * @param {Tech} _Tech
-   *        The tech to add source handler functions to.
-   *
-   * @mixes Tech~SourceHandlerAdditions
-   */
-
-  Tech.withSourceHandlers = function (_Tech) {
-    /**
-     * Register a source handler
-     *
-     * @param {Function} handler
-     *        The source handler class
-     *
-     * @param {number} [index]
-     *        Register it at the following index
-     */
-    _Tech.registerSourceHandler = function (handler, index) {
-      var handlers = _Tech.sourceHandlers;
-
-      if (!handlers) {
-        handlers = _Tech.sourceHandlers = [];
-      }
-
-      if (index === undefined) {
-        // add to the end of the list
-        index = handlers.length;
-      }
-
-      handlers.splice(index, 0, handler);
-    };
-    /**
-     * Check if the tech can support the given type. Also checks the
-     * Techs sourceHandlers.
-     *
-     * @param {string} type
-     *         The mimetype to check.
-     *
-     * @return {string}
-     *         'probably', 'maybe', or '' (empty string)
-     */
-
-
-    _Tech.canPlayType = function (type) {
-      var handlers = _Tech.sourceHandlers || [];
-      var can;
-
-      for (var i = 0; i < handlers.length; i++) {
-        can = handlers[i].canPlayType(type);
-
-        if (can) {
-          return can;
-        }
-      }
-
-      return '';
-    };
-    /**
-     * Returns the first source handler that supports the source.
-     *
-     * TODO: Answer question: should 'probably' be prioritized over 'maybe'
-     *
-     * @param {Tech~SourceObject} source
-     *        The source object
-     *
-     * @param {Object} options
-     *        The options passed to the tech
-     *
-     * @return {SourceHandler|null}
-     *          The first source handler that supports the source or null if
-     *          no SourceHandler supports the source
-     */
-
-
-    _Tech.selectSourceHandler = function (source, options) {
-      var handlers = _Tech.sourceHandlers || [];
-      var can;
-
-      for (var i = 0; i < handlers.length; i++) {
-        can = handlers[i].canHandleSource(source, options);
-
-        if (can) {
-          return handlers[i];
-        }
-      }
-
-      return null;
-    };
-    /**
-     * Check if the tech can support the given source.
-     *
-     * @param {Tech~SourceObject} srcObj
-     *        The source object
-     *
-     * @param {Object} options
-     *        The options passed to the tech
-     *
-     * @return {string}
-     *         'probably', 'maybe', or '' (empty string)
-     */
-
-
-    _Tech.canPlaySource = function (srcObj, options) {
-      var sh = _Tech.selectSourceHandler(srcObj, options);
-
-      if (sh) {
-        return sh.canHandleSource(srcObj, options);
-      }
-
-      return '';
-    };
-    /**
-     * When using a source handler, prefer its implementation of
-     * any function normally provided by the tech.
-     */
-
-
-    var deferrable = ['seekable', 'seeking', 'duration'];
-    /**
-     * A wrapper around {@link Tech#seekable} that will call a `SourceHandler`s seekable
-     * function if it exists, with a fallback to the Techs seekable function.
-     *
-     * @method _Tech.seekable
-     */
-
-    /**
-     * A wrapper around {@link Tech#duration} that will call a `SourceHandler`s duration
-     * function if it exists, otherwise it will fallback to the techs duration function.
-     *
-     * @method _Tech.duration
-     */
-
-    deferrable.forEach(function (fnName) {
-      var originalFn = this[fnName];
-
-      if (typeof originalFn !== 'function') {
-        return;
-      }
-
-      this[fnName] = function () {
-        if (this.sourceHandler_ && this.sourceHandler_[fnName]) {
-          return this.sourceHandler_[fnName].apply(this.sourceHandler_, arguments);
+        static isTech(component) {
+            return component.prototype instanceof Tech || component instanceof Tech || component === Tech;
         }
 
-        return originalFn.apply(this, arguments);
-      };
-    }, _Tech.prototype);
-    /**
-     * Create a function for setting the source using a source object
-     * and source handlers.
-     * Should never be called unless a source handler was found.
-     *
-     * @param {Tech~SourceObject} source
-     *        A source object with src and type keys
-     */
-
-    _Tech.prototype.setSource = function (source) {
-      var sh = _Tech.selectSourceHandler(source, this.options_);
-
-      if (!sh) {
-        // Fall back to a native source hander when unsupported sources are
-        // deliberately set
-        if (_Tech.nativeSourceHandler) {
-          sh = _Tech.nativeSourceHandler;
-        } else {
-          log$1.error('No source handler found for the current source.');
-        }
-      } // Dispose any existing source handler
-
-
-      this.disposeSourceHandler();
-      this.off('dispose', this.disposeSourceHandler_);
-
-      if (sh !== _Tech.nativeSourceHandler) {
-        this.currentSource_ = source;
-      }
-
-      this.sourceHandler_ = sh.handleSource(source, this, this.options_);
-      this.one('dispose', this.disposeSourceHandler_);
-    };
-    /**
-     * Clean up any existing SourceHandlers and listeners when the Tech is disposed.
-     *
-     * @listens Tech#dispose
-     */
-
-
-    _Tech.prototype.disposeSourceHandler = function () {
-      // if we have a source and get another one
-      // then we are loading something new
-      // than clear all of our current tracks
-      if (this.currentSource_) {
-        this.clearTracks(['audio', 'video']);
-        this.currentSource_ = null;
-      } // always clean up auto-text tracks
-
-
-      this.cleanupAutoTextTracks();
-
-      if (this.sourceHandler_) {
-        if (this.sourceHandler_.dispose) {
-          this.sourceHandler_.dispose();
-        }
-
-        this.sourceHandler_ = null;
-      }
-    };
-  }; // The base Tech class needs to be registered as a Component. It is the only
-  // Tech that can be registered as a Component.
-
-
-  Component$1.registerComponent('Tech', Tech);
-  Tech.registerTech('Tech', Tech);
-  /**
-   * A list of techs that should be added to techOrder on Players
-   *
-   * @private
-   */
-
-  Tech.defaultTechOrder_ = [];
-
-  /**
-   * @file middleware.js
-   * @module middleware
-   */
-  var middlewares = {};
-  var middlewareInstances = {};
-  var TERMINATOR = {};
-  /**
-   * A middleware object is a plain JavaScript object that has methods that
-   * match the {@link Tech} methods found in the lists of allowed
-   * {@link module:middleware.allowedGetters|getters},
-   * {@link module:middleware.allowedSetters|setters}, and
-   * {@link module:middleware.allowedMediators|mediators}.
-   *
-   * @typedef {Object} MiddlewareObject
-   */
-
-  /**
-   * A middleware factory function that should return a
-   * {@link module:middleware~MiddlewareObject|MiddlewareObject}.
-   *
-   * This factory will be called for each player when needed, with the player
-   * passed in as an argument.
-   *
-   * @callback MiddlewareFactory
-   * @param {Player} player
-   *        A Video.js player.
-   */
-
-  /**
-   * Define a middleware that the player should use by way of a factory function
-   * that returns a middleware object.
-   *
-   * @param  {string} type
-   *         The MIME type to match or `"*"` for all MIME types.
-   *
-   * @param  {MiddlewareFactory} middleware
-   *         A middleware factory function that will be executed for
-   *         matching types.
-   */
-
-  function use(type, middleware) {
-    middlewares[type] = middlewares[type] || [];
-    middlewares[type].push(middleware);
-  }
-  /**
-   * Asynchronously sets a source using middleware by recursing through any
-   * matching middlewares and calling `setSource` on each, passing along the
-   * previous returned value each time.
-   *
-   * @param  {Player} player
-   *         A {@link Player} instance.
-   *
-   * @param  {Tech~SourceObject} src
-   *         A source object.
-   *
-   * @param  {Function}
-   *         The next middleware to run.
-   */
-
-  function setSource(player, src, next) {
-    player.setTimeout(function () {
-      return setSourceHelper(src, middlewares[src.type], next, player);
-    }, 1);
-  }
-  /**
-   * When the tech is set, passes the tech to each middleware's `setTech` method.
-   *
-   * @param {Object[]} middleware
-   *        An array of middleware instances.
-   *
-   * @param {Tech} tech
-   *        A Video.js tech.
-   */
-
-  function setTech(middleware, tech) {
-    middleware.forEach(function (mw) {
-      return mw.setTech && mw.setTech(tech);
-    });
-  }
-  /**
-   * Calls a getter on the tech first, through each middleware
-   * from right to left to the player.
-   *
-   * @param  {Object[]} middleware
-   *         An array of middleware instances.
-   *
-   * @param  {Tech} tech
-   *         The current tech.
-   *
-   * @param  {string} method
-   *         A method name.
-   *
-   * @return {Mixed}
-   *         The final value from the tech after middleware has intercepted it.
-   */
-
-  function get(middleware, tech, method) {
-    return middleware.reduceRight(middlewareIterator(method), tech[method]());
-  }
-  /**
-   * Takes the argument given to the player and calls the setter method on each
-   * middleware from left to right to the tech.
-   *
-   * @param  {Object[]} middleware
-   *         An array of middleware instances.
-   *
-   * @param  {Tech} tech
-   *         The current tech.
-   *
-   * @param  {string} method
-   *         A method name.
-   *
-   * @param  {Mixed} arg
-   *         The value to set on the tech.
-   *
-   * @return {Mixed}
-   *         The return value of the `method` of the `tech`.
-   */
-
-  function set(middleware, tech, method, arg) {
-    return tech[method](middleware.reduce(middlewareIterator(method), arg));
-  }
-  /**
-   * Takes the argument given to the player and calls the `call` version of the
-   * method on each middleware from left to right.
-   *
-   * Then, call the passed in method on the tech and return the result unchanged
-   * back to the player, through middleware, this time from right to left.
-   *
-   * @param  {Object[]} middleware
-   *         An array of middleware instances.
-   *
-   * @param  {Tech} tech
-   *         The current tech.
-   *
-   * @param  {string} method
-   *         A method name.
-   *
-   * @param  {Mixed} arg
-   *         The value to set on the tech.
-   *
-   * @return {Mixed}
-   *         The return value of the `method` of the `tech`, regardless of the
-   *         return values of middlewares.
-   */
-
-  function mediate(middleware, tech, method, arg) {
-    if (arg === void 0) {
-      arg = null;
-    }
-
-    var callMethod = 'call' + toTitleCase$1(method);
-    var middlewareValue = middleware.reduce(middlewareIterator(callMethod), arg);
-    var terminated = middlewareValue === TERMINATOR; // deprecated. The `null` return value should instead return TERMINATOR to
-    // prevent confusion if a techs method actually returns null.
-
-    var returnValue = terminated ? null : tech[method](middlewareValue);
-    executeRight(middleware, method, returnValue, terminated);
-    return returnValue;
-  }
-  /**
-   * Enumeration of allowed getters where the keys are method names.
-   *
-   * @type {Object}
-   */
-
-  var allowedGetters = {
-    buffered: 1,
-    currentTime: 1,
-    duration: 1,
-    muted: 1,
-    played: 1,
-    paused: 1,
-    seekable: 1,
-    volume: 1,
-    ended: 1
-  };
-  /**
-   * Enumeration of allowed setters where the keys are method names.
-   *
-   * @type {Object}
-   */
-
-  var allowedSetters = {
-    setCurrentTime: 1,
-    setMuted: 1,
-    setVolume: 1
-  };
-  /**
-   * Enumeration of allowed mediators where the keys are method names.
-   *
-   * @type {Object}
-   */
-
-  var allowedMediators = {
-    play: 1,
-    pause: 1
-  };
-
-  function middlewareIterator(method) {
-    return function (value, mw) {
-      // if the previous middleware terminated, pass along the termination
-      if (value === TERMINATOR) {
-        return TERMINATOR;
-      }
-
-      if (mw[method]) {
-        return mw[method](value);
-      }
-
-      return value;
-    };
-  }
-
-  function executeRight(mws, method, value, terminated) {
-    for (var i = mws.length - 1; i >= 0; i--) {
-      var mw = mws[i];
-
-      if (mw[method]) {
-        mw[method](terminated, value);
-      }
-    }
-  }
-  /**
-   * Clear the middleware cache for a player.
-   *
-   * @param  {Player} player
-   *         A {@link Player} instance.
-   */
-
-
-  function clearCacheForPlayer(player) {
-    middlewareInstances[player.id()] = null;
-  }
-  /**
-   * {
-   *  [playerId]: [[mwFactory, mwInstance], ...]
-   * }
-   *
-   * @private
-   */
-
-  function getOrCreateFactory(player, mwFactory) {
-    var mws = middlewareInstances[player.id()];
-    var mw = null;
-
-    if (mws === undefined || mws === null) {
-      mw = mwFactory(player);
-      middlewareInstances[player.id()] = [[mwFactory, mw]];
-      return mw;
-    }
-
-    for (var i = 0; i < mws.length; i++) {
-      var _mws$i = mws[i],
-          mwf = _mws$i[0],
-          mwi = _mws$i[1];
-
-      if (mwf !== mwFactory) {
-        continue;
-      }
-
-      mw = mwi;
-    }
-
-    if (mw === null) {
-      mw = mwFactory(player);
-      mws.push([mwFactory, mw]);
-    }
-
-    return mw;
-  }
-
-  function setSourceHelper(src, middleware, next, player, acc, lastRun) {
-    if (src === void 0) {
-      src = {};
-    }
-
-    if (middleware === void 0) {
-      middleware = [];
-    }
-
-    if (acc === void 0) {
-      acc = [];
-    }
-
-    if (lastRun === void 0) {
-      lastRun = false;
-    }
-
-    var _middleware = middleware,
-        mwFactory = _middleware[0],
-        mwrest = _middleware.slice(1); // if mwFactory is a string, then we're at a fork in the road
-
-
-    if (typeof mwFactory === 'string') {
-      setSourceHelper(src, middlewares[mwFactory], next, player, acc, lastRun); // if we have an mwFactory, call it with the player to get the mw,
-      // then call the mw's setSource method
-    } else if (mwFactory) {
-      var mw = getOrCreateFactory(player, mwFactory); // if setSource isn't present, implicitly select this middleware
-
-      if (!mw.setSource) {
-        acc.push(mw);
-        return setSourceHelper(src, mwrest, next, player, acc, lastRun);
-      }
-
-      mw.setSource(assign({}, src), function (err, _src) {
-        // something happened, try the next middleware on the current level
-        // make sure to use the old src
-        if (err) {
-          return setSourceHelper(src, mwrest, next, player, acc, lastRun);
-        } // we've succeeded, now we need to go deeper
-
-
-        acc.push(mw); // if it's the same type, continue down the current chain
-        // otherwise, we want to go down the new chain
-
-        setSourceHelper(_src, src.type === _src.type ? mwrest : middlewares[_src.type], next, player, acc, lastRun);
-      });
-    } else if (mwrest.length) {
-      setSourceHelper(src, mwrest, next, player, acc, lastRun);
-    } else if (lastRun) {
-      next(src, acc);
-    } else {
-      setSourceHelper(src, middlewares['*'], next, player, acc, true);
-    }
-  }
-
-  /**
-   * Mimetypes
-   *
-   * @see https://www.iana.org/assignments/media-types/media-types.xhtml
-   * @typedef Mimetypes~Kind
-   * @enum
-   */
-
-  var MimetypesKind = {
-    opus: 'video/ogg',
-    ogv: 'video/ogg',
-    mp4: 'video/mp4',
-    mov: 'video/mp4',
-    m4v: 'video/mp4',
-    mkv: 'video/x-matroska',
-    m4a: 'audio/mp4',
-    mp3: 'audio/mpeg',
-    aac: 'audio/aac',
-    caf: 'audio/x-caf',
-    flac: 'audio/flac',
-    oga: 'audio/ogg',
-    wav: 'audio/wav',
-    m3u8: 'application/x-mpegURL',
-    mpd: 'application/dash+xml',
-    jpg: 'image/jpeg',
-    jpeg: 'image/jpeg',
-    gif: 'image/gif',
-    png: 'image/png',
-    svg: 'image/svg+xml',
-    webp: 'image/webp'
-  };
-  /**
-   * Get the mimetype of a given src url if possible
-   *
-   * @param {string} src
-   *        The url to the src
-   *
-   * @return {string}
-   *         return the mimetype if it was known or empty string otherwise
-   */
-
-  var getMimetype = function getMimetype(src) {
-    if (src === void 0) {
-      src = '';
-    }
-
-    var ext = getFileExtension(src);
-    var mimetype = MimetypesKind[ext.toLowerCase()];
-    return mimetype || '';
-  };
-  /**
-   * Find the mime type of a given source string if possible. Uses the player
-   * source cache.
-   *
-   * @param {Player} player
-   *        The player object
-   *
-   * @param {string} src
-   *        The source string
-   *
-   * @return {string}
-   *         The type that was found
-   */
-
-  var findMimetype = function findMimetype(player, src) {
-    if (!src) {
-      return '';
-    } // 1. check for the type in the `source` cache
-
-
-    if (player.cache_.source.src === src && player.cache_.source.type) {
-      return player.cache_.source.type;
-    } // 2. see if we have this source in our `currentSources` cache
-
-
-    var matchingSources = player.cache_.sources.filter(function (s) {
-      return s.src === src;
-    });
-
-    if (matchingSources.length) {
-      return matchingSources[0].type;
-    } // 3. look for the src url in source elements and use the type there
-
-
-    var sources = player.$$('source');
-
-    for (var i = 0; i < sources.length; i++) {
-      var s = sources[i];
-
-      if (s.type && s.src && s.src === src) {
-        return s.type;
-      }
-    } // 4. finally fallback to our list of mime types based on src url extension
-
-
-    return getMimetype(src);
-  };
-
-  /**
-   * @module filter-source
-   */
-  /**
-   * Filter out single bad source objects or multiple source objects in an
-   * array. Also flattens nested source object arrays into a 1 dimensional
-   * array of source objects.
-   *
-   * @param {Tech~SourceObject|Tech~SourceObject[]} src
-   *        The src object to filter
-   *
-   * @return {Tech~SourceObject[]}
-   *         An array of sourceobjects containing only valid sources
-   *
-   * @private
-   */
-
-  var filterSource = function filterSource(src) {
-    // traverse array
-    if (Array.isArray(src)) {
-      var newsrc = [];
-      src.forEach(function (srcobj) {
-        srcobj = filterSource(srcobj);
-
-        if (Array.isArray(srcobj)) {
-          newsrc = newsrc.concat(srcobj);
-        } else if (isObject$1(srcobj)) {
-          newsrc.push(srcobj);
-        }
-      });
-      src = newsrc;
-    } else if (typeof src === 'string' && src.trim()) {
-      // convert string into object
-      src = [fixSource({
-        src: src
-      })];
-    } else if (isObject$1(src) && typeof src.src === 'string' && src.src && src.src.trim()) {
-      // src is already valid
-      src = [fixSource(src)];
-    } else {
-      // invalid source, turn it into an empty array
-      src = [];
-    }
-
-    return src;
-  };
-  /**
-   * Checks src mimetype, adding it when possible
-   *
-   * @param {Tech~SourceObject} src
-   *        The src object to check
-   * @return {Tech~SourceObject}
-   *        src Object with known type
-   */
-
-
-  function fixSource(src) {
-    if (!src.type) {
-      var mimetype = getMimetype(src.src);
-
-      if (mimetype) {
-        src.type = mimetype;
-      }
-    }
-
-    return src;
-  }
-
-  /**
-   * The `MediaLoader` is the `Component` that decides which playback technology to load
-   * when a player is initialized.
-   *
-   * @extends Component
-   */
-
-  var MediaLoader = /*#__PURE__*/function (_Component) {
-    inheritsLoose(MediaLoader, _Component);
-
-    /**
-     * Create an instance of this class.
-     *
-     * @param {Player} player
-     *        The `Player` that this class should attach to.
-     *
-     * @param {Object} [options]
-     *        The key/value store of player options.
-     *
-     * @param {Component~ReadyCallback} [ready]
-     *        The function that is run when this component is ready.
-     */
-    function MediaLoader(player, options, ready) {
-      var _this;
-
-      // MediaLoader has no element
-      var options_ = mergeOptions$3({
-        createEl: false
-      }, options);
-      _this = _Component.call(this, player, options_, ready) || this; // If there are no sources when the player is initialized,
-      // load the first supported playback technology.
-
-      if (!options.playerOptions.sources || options.playerOptions.sources.length === 0) {
-        for (var i = 0, j = options.playerOptions.techOrder; i < j.length; i++) {
-          var techName = toTitleCase$1(j[i]);
-          var tech = Tech.getTech(techName); // Support old behavior of techs being registered as components.
-          // Remove once that deprecated behavior is removed.
-
-          if (!techName) {
-            tech = Component$1.getComponent(techName);
-          } // Check if the browser supports this technology
-
-
-          if (tech && tech.isSupported()) {
-            player.loadTech_(techName);
-            break;
-          }
-        }
-      } else {
-        // Loop through playback technologies (e.g. HTML5) and check for support.
-        // Then load the best source.
-        // A few assumptions here:
-        //   All playback technologies respect preload false.
-        player.src(options.playerOptions.sources);
-      }
-
-      return _this;
-    }
-
-    return MediaLoader;
-  }(Component$1);
-
-  Component$1.registerComponent('MediaLoader', MediaLoader);
-
-  /**
-   * Component which is clickable or keyboard actionable, but is not a
-   * native HTML button.
-   *
-   * @extends Component
-   */
-
-  var ClickableComponent = /*#__PURE__*/function (_Component) {
-    inheritsLoose(ClickableComponent, _Component);
-
-    /**
-     * Creates an instance of this class.
-     *
-     * @param  {Player} player
-     *         The `Player` that this class should be attached to.
-     *
-     * @param  {Object} [options]
-     *         The key/value store of component options.
-     *
-     * @param  {function} [options.clickHandler]
-     *         The function to call when the button is clicked / activated
-     *
-     * @param  {string} [options.controlText]
-     *         The text to set on the button
-     *
-     * @param  {string} [options.className]
-     *         A class or space separated list of classes to add the component
-     *
-     */
-    function ClickableComponent(player, options) {
-      var _this;
-
-      _this = _Component.call(this, player, options) || this;
-
-      if (_this.options_.controlText) {
-        _this.controlText(_this.options_.controlText);
-      }
-
-      _this.handleMouseOver_ = function (e) {
-        return _this.handleMouseOver(e);
-      };
-
-      _this.handleMouseOut_ = function (e) {
-        return _this.handleMouseOut(e);
-      };
-
-      _this.handleClick_ = function (e) {
-        return _this.handleClick(e);
-      };
-
-      _this.handleKeyDown_ = function (e) {
-        return _this.handleKeyDown(e);
-      };
-
-      _this.emitTapEvents();
-
-      _this.enable();
-
-      return _this;
-    }
-    /**
-     * Create the `ClickableComponent`s DOM element.
-     *
-     * @param {string} [tag=div]
-     *        The element's node type.
-     *
-     * @param {Object} [props={}]
-     *        An object of properties that should be set on the element.
-     *
-     * @param {Object} [attributes={}]
-     *        An object of attributes that should be set on the element.
-     *
-     * @return {Element}
-     *         The element that gets created.
-     */
-
-
-    var _proto = ClickableComponent.prototype;
-
-    _proto.createEl = function createEl$1(tag, props, attributes) {
-      if (tag === void 0) {
-        tag = 'div';
-      }
-
-      if (props === void 0) {
-        props = {};
-      }
-
-      if (attributes === void 0) {
-        attributes = {};
-      }
-
-      props = assign({
-        className: this.buildCSSClass(),
-        tabIndex: 0
-      }, props);
-
-      if (tag === 'button') {
-        log$1.error("Creating a ClickableComponent with an HTML element of " + tag + " is not supported; use a Button instead.");
-      } // Add ARIA attributes for clickable element which is not a native HTML button
-
-
-      attributes = assign({
-        role: 'button'
-      }, attributes);
-      this.tabIndex_ = props.tabIndex;
-      var el = createEl(tag, props, attributes);
-      el.appendChild(createEl('span', {
-        className: 'vjs-icon-placeholder'
-      }, {
-        'aria-hidden': true
-      }));
-      this.createControlTextEl(el);
-      return el;
-    };
-
-    _proto.dispose = function dispose() {
-      // remove controlTextEl_ on dispose
-      this.controlTextEl_ = null;
-
-      _Component.prototype.dispose.call(this);
-    }
-    /**
-     * Create a control text element on this `ClickableComponent`
-     *
-     * @param {Element} [el]
-     *        Parent element for the control text.
-     *
-     * @return {Element}
-     *         The control text element that gets created.
-     */
-    ;
-
-    _proto.createControlTextEl = function createControlTextEl(el) {
-      this.controlTextEl_ = createEl('span', {
-        className: 'vjs-control-text'
-      }, {
-        // let the screen reader user know that the text of the element may change
-        'aria-live': 'polite'
-      });
-
-      if (el) {
-        el.appendChild(this.controlTextEl_);
-      }
-
-      this.controlText(this.controlText_, el);
-      return this.controlTextEl_;
-    }
-    /**
-     * Get or set the localize text to use for the controls on the `ClickableComponent`.
-     *
-     * @param {string} [text]
-     *        Control text for element.
-     *
-     * @param {Element} [el=this.el()]
-     *        Element to set the title on.
-     *
-     * @return {string}
-     *         - The control text when getting
-     */
-    ;
-
-    _proto.controlText = function controlText(text, el) {
-      if (el === void 0) {
-        el = this.el();
-      }
-
-      if (text === undefined) {
-        return this.controlText_ || 'Need Text';
-      }
-
-      var localizedText = this.localize(text);
-      this.controlText_ = text;
-      textContent(this.controlTextEl_, localizedText);
-
-      if (!this.nonIconControl && !this.player_.options_.noUITitleAttributes) {
-        // Set title attribute if only an icon is shown
-        el.setAttribute('title', localizedText);
-      }
-    }
-    /**
-     * Builds the default DOM `className`.
-     *
-     * @return {string}
-     *         The DOM `className` for this object.
-     */
-    ;
-
-    _proto.buildCSSClass = function buildCSSClass() {
-      return "vjs-control vjs-button " + _Component.prototype.buildCSSClass.call(this);
-    }
-    /**
-     * Enable this `ClickableComponent`
-     */
-    ;
-
-    _proto.enable = function enable() {
-      if (!this.enabled_) {
-        this.enabled_ = true;
-        this.removeClass('vjs-disabled');
-        this.el_.setAttribute('aria-disabled', 'false');
-
-        if (typeof this.tabIndex_ !== 'undefined') {
-          this.el_.setAttribute('tabIndex', this.tabIndex_);
-        }
-
-        this.on(['tap', 'click'], this.handleClick_);
-        this.on('keydown', this.handleKeyDown_);
-      }
-    }
-    /**
-     * Disable this `ClickableComponent`
-     */
-    ;
-
-    _proto.disable = function disable() {
-      this.enabled_ = false;
-      this.addClass('vjs-disabled');
-      this.el_.setAttribute('aria-disabled', 'true');
-
-      if (typeof this.tabIndex_ !== 'undefined') {
-        this.el_.removeAttribute('tabIndex');
-      }
-
-      this.off('mouseover', this.handleMouseOver_);
-      this.off('mouseout', this.handleMouseOut_);
-      this.off(['tap', 'click'], this.handleClick_);
-      this.off('keydown', this.handleKeyDown_);
-    }
-    /**
-     * Handles language change in ClickableComponent for the player in components
-     *
-     *
-     */
-    ;
-
-    _proto.handleLanguagechange = function handleLanguagechange() {
-      this.controlText(this.controlText_);
-    }
-    /**
-     * Event handler that is called when a `ClickableComponent` receives a
-     * `click` or `tap` event.
-     *
-     * @param {EventTarget~Event} event
-     *        The `tap` or `click` event that caused this function to be called.
-     *
-     * @listens tap
-     * @listens click
-     * @abstract
-     */
-    ;
-
-    _proto.handleClick = function handleClick(event) {
-      if (this.options_.clickHandler) {
-        this.options_.clickHandler.call(this, arguments);
-      }
-    }
-    /**
-     * Event handler that is called when a `ClickableComponent` receives a
-     * `keydown` event.
-     *
-     * By default, if the key is Space or Enter, it will trigger a `click` event.
-     *
-     * @param {EventTarget~Event} event
-     *        The `keydown` event that caused this function to be called.
-     *
-     * @listens keydown
-     */
-    ;
-
-    _proto.handleKeyDown = function handleKeyDown(event) {
-      // Support Space or Enter key operation to fire a click event. Also,
-      // prevent the event from propagating through the DOM and triggering
-      // Player hotkeys.
-      if (keycode.isEventKey(event, 'Space') || keycode.isEventKey(event, 'Enter')) {
-        event.preventDefault();
-        event.stopPropagation();
-        this.trigger('click');
-      } else {
-        // Pass keypress handling up for unsupported keys
-        _Component.prototype.handleKeyDown.call(this, event);
-      }
-    };
-
-    return ClickableComponent;
-  }(Component$1);
-
-  Component$1.registerComponent('ClickableComponent', ClickableComponent);
-
-  /**
-   * A `ClickableComponent` that handles showing the poster image for the player.
-   *
-   * @extends ClickableComponent
-   */
-
-  var PosterImage = /*#__PURE__*/function (_ClickableComponent) {
-    inheritsLoose(PosterImage, _ClickableComponent);
-
-    /**
-     * Create an instance of this class.
-     *
-     * @param {Player} player
-     *        The `Player` that this class should attach to.
-     *
-     * @param {Object} [options]
-     *        The key/value store of player options.
-     */
-    function PosterImage(player, options) {
-      var _this;
-
-      _this = _ClickableComponent.call(this, player, options) || this;
-
-      _this.update();
-
-      _this.update_ = function (e) {
-        return _this.update(e);
-      };
-
-      player.on('posterchange', _this.update_);
-      return _this;
-    }
-    /**
-     * Clean up and dispose of the `PosterImage`.
-     */
-
-
-    var _proto = PosterImage.prototype;
-
-    _proto.dispose = function dispose() {
-      this.player().off('posterchange', this.update_);
-
-      _ClickableComponent.prototype.dispose.call(this);
-    }
-    /**
-     * Create the `PosterImage`s DOM element.
-     *
-     * @return {Element}
-     *         The element that gets created.
-     */
-    ;
-
-    _proto.createEl = function createEl$1() {
-      var el = createEl('div', {
-        className: 'vjs-poster',
-        // Don't want poster to be tabbable.
-        tabIndex: -1
-      });
-      return el;
-    }
-    /**
-     * An {@link EventTarget~EventListener} for {@link Player#posterchange} events.
-     *
-     * @listens Player#posterchange
-     *
-     * @param {EventTarget~Event} [event]
-     *        The `Player#posterchange` event that triggered this function.
-     */
-    ;
-
-    _proto.update = function update(event) {
-      var url = this.player().poster();
-      this.setSrc(url); // If there's no poster source we should display:none on this component
-      // so it's not still clickable or right-clickable
-
-      if (url) {
-        this.show();
-      } else {
-        this.hide();
-      }
-    }
-    /**
-     * Set the source of the `PosterImage` depending on the display method.
-     *
-     * @param {string} url
-     *        The URL to the source for the `PosterImage`.
-     */
-    ;
-
-    _proto.setSrc = function setSrc(url) {
-      var backgroundImage = ''; // Any falsy value should stay as an empty string, otherwise
-      // this will throw an extra error
-
-      if (url) {
-        backgroundImage = "url(\"" + url + "\")";
-      }
-
-      this.el_.style.backgroundImage = backgroundImage;
-    }
-    /**
-     * An {@link EventTarget~EventListener} for clicks on the `PosterImage`. See
-     * {@link ClickableComponent#handleClick} for instances where this will be triggered.
-     *
-     * @listens tap
-     * @listens click
-     * @listens keydown
-     *
-     * @param {EventTarget~Event} event
-     +        The `click`, `tap` or `keydown` event that caused this function to be called.
-     */
-    ;
-
-    _proto.handleClick = function handleClick(event) {
-      // We don't want a click to trigger playback when controls are disabled
-      if (!this.player_.controls()) {
-        return;
-      }
-
-      var sourceIsEncrypted = this.player_.usingPlugin('eme') && this.player_.eme.sessions && this.player_.eme.sessions.length > 0;
-
-      if (this.player_.tech(true) && // We've observed a bug in IE and Edge when playing back DRM content where
-      // calling .focus() on the video element causes the video to go black,
-      // so we avoid it in that specific case
-      !((IE_VERSION || IS_EDGE) && sourceIsEncrypted)) {
-        this.player_.tech(true).focus();
-      }
-
-      if (this.player_.paused()) {
-        silencePromise(this.player_.play());
-      } else {
-        this.player_.pause();
-      }
-    };
-
-    return PosterImage;
-  }(ClickableComponent);
-
-  Component$1.registerComponent('PosterImage', PosterImage);
-
-  var darkGray = '#222';
-  var lightGray = '#ccc';
-  var fontMap = {
-    monospace: 'monospace',
-    sansSerif: 'sans-serif',
-    serif: 'serif',
-    monospaceSansSerif: '"Andale Mono", "Lucida Console", monospace',
-    monospaceSerif: '"Courier New", monospace',
-    proportionalSansSerif: 'sans-serif',
-    proportionalSerif: 'serif',
-    casual: '"Comic Sans MS", Impact, fantasy',
-    script: '"Monotype Corsiva", cursive',
-    smallcaps: '"Andale Mono", "Lucida Console", monospace, sans-serif'
-  };
-  /**
-   * Construct an rgba color from a given hex color code.
-   *
-   * @param {number} color
-   *        Hex number for color, like #f0e or #f604e2.
-   *
-   * @param {number} opacity
-   *        Value for opacity, 0.0 - 1.0.
-   *
-   * @return {string}
-   *         The rgba color that was created, like 'rgba(255, 0, 0, 0.3)'.
-   */
-
-  function constructColor(color, opacity) {
-    var hex;
-
-    if (color.length === 4) {
-      // color looks like "#f0e"
-      hex = color[1] + color[1] + color[2] + color[2] + color[3] + color[3];
-    } else if (color.length === 7) {
-      // color looks like "#f604e2"
-      hex = color.slice(1);
-    } else {
-      throw new Error('Invalid color code provided, ' + color + '; must be formatted as e.g. #f0e or #f604e2.');
-    }
-
-    return 'rgba(' + parseInt(hex.slice(0, 2), 16) + ',' + parseInt(hex.slice(2, 4), 16) + ',' + parseInt(hex.slice(4, 6), 16) + ',' + opacity + ')';
-  }
-  /**
-   * Try to update the style of a DOM element. Some style changes will throw an error,
-   * particularly in IE8. Those should be noops.
-   *
-   * @param {Element} el
-   *        The DOM element to be styled.
-   *
-   * @param {string} style
-   *        The CSS property on the element that should be styled.
-   *
-   * @param {string} rule
-   *        The style rule that should be applied to the property.
-   *
-   * @private
-   */
-
-  function tryUpdateStyle(el, style, rule) {
-    try {
-      el.style[style] = rule;
-    } catch (e) {
-      // Satisfies linter.
-      return;
-    }
-  }
-  /**
-   * The component for displaying text track cues.
-   *
-   * @extends Component
-   */
-
-
-  var TextTrackDisplay = /*#__PURE__*/function (_Component) {
-    inheritsLoose(TextTrackDisplay, _Component);
-
-    /**
-     * Creates an instance of this class.
-     *
-     * @param {Player} player
-     *        The `Player` that this class should be attached to.
-     *
-     * @param {Object} [options]
-     *        The key/value store of player options.
-     *
-     * @param {Component~ReadyCallback} [ready]
-     *        The function to call when `TextTrackDisplay` is ready.
-     */
-    function TextTrackDisplay(player, options, ready) {
-      var _this;
-
-      _this = _Component.call(this, player, options, ready) || this;
-
-      var updateDisplayHandler = function updateDisplayHandler(e) {
-        return _this.updateDisplay(e);
-      };
-
-      player.on('loadstart', function (e) {
-        return _this.toggleDisplay(e);
-      });
-      player.on('texttrackchange', updateDisplayHandler);
-      player.on('loadedmetadata', function (e) {
-        return _this.preselectTrack(e);
-      }); // This used to be called during player init, but was causing an error
-      // if a track should show by default and the display hadn't loaded yet.
-      // Should probably be moved to an external track loader when we support
-      // tracks that don't need a display.
-
-      player.ready(bind(assertThisInitialized(_this), function () {
-        if (player.tech_ && player.tech_.featuresNativeTextTracks) {
-          this.hide();
-          return;
-        }
-
-        player.on('fullscreenchange', updateDisplayHandler);
-        player.on('playerresize', updateDisplayHandler);
-        window.addEventListener('orientationchange', updateDisplayHandler);
-        player.on('dispose', function () {
-          return window.removeEventListener('orientationchange', updateDisplayHandler);
-        });
-        var tracks = this.options_.playerOptions.tracks || [];
-
-        for (var i = 0; i < tracks.length; i++) {
-          this.player_.addRemoteTextTrack(tracks[i], true);
-        }
-
-        this.preselectTrack();
-      }));
-      return _this;
-    }
-    /**
-    * Preselect a track following this precedence:
-    * - matches the previously selected {@link TextTrack}'s language and kind
-    * - matches the previously selected {@link TextTrack}'s language only
-    * - is the first default captions track
-    * - is the first default descriptions track
-    *
-    * @listens Player#loadstart
-    */
-
-
-    var _proto = TextTrackDisplay.prototype;
-
-    _proto.preselectTrack = function preselectTrack() {
-      var modes = {
-        captions: 1,
-        subtitles: 1
-      };
-      var trackList = this.player_.textTracks();
-      var userPref = this.player_.cache_.selectedLanguage;
-      var firstDesc;
-      var firstCaptions;
-      var preferredTrack;
-
-      for (var i = 0; i < trackList.length; i++) {
-        var track = trackList[i];
-
-        if (userPref && userPref.enabled && userPref.language && userPref.language === track.language && track.kind in modes) {
-          // Always choose the track that matches both language and kind
-          if (track.kind === userPref.kind) {
-            preferredTrack = track; // or choose the first track that matches language
-          } else if (!preferredTrack) {
-            preferredTrack = track;
-          } // clear everything if offTextTrackMenuItem was clicked
-
-        } else if (userPref && !userPref.enabled) {
-          preferredTrack = null;
-          firstDesc = null;
-          firstCaptions = null;
-        } else if (track["default"]) {
-          if (track.kind === 'descriptions' && !firstDesc) {
-            firstDesc = track;
-          } else if (track.kind in modes && !firstCaptions) {
-            firstCaptions = track;
-          }
-        }
-      } // The preferredTrack matches the user preference and takes
-      // precedence over all the other tracks.
-      // So, display the preferredTrack before the first default track
-      // and the subtitles/captions track before the descriptions track
-
-
-      if (preferredTrack) {
-        preferredTrack.mode = 'showing';
-      } else if (firstCaptions) {
-        firstCaptions.mode = 'showing';
-      } else if (firstDesc) {
-        firstDesc.mode = 'showing';
-      }
-    }
-    /**
-     * Turn display of {@link TextTrack}'s from the current state into the other state.
-     * There are only two states:
-     * - 'shown'
-     * - 'hidden'
-     *
-     * @listens Player#loadstart
-     */
-    ;
-
-    _proto.toggleDisplay = function toggleDisplay() {
-      if (this.player_.tech_ && this.player_.tech_.featuresNativeTextTracks) {
-        this.hide();
-      } else {
-        this.show();
-      }
-    }
-    /**
-     * Create the {@link Component}'s DOM element.
-     *
-     * @return {Element}
-     *         The element that was created.
-     */
-    ;
-
-    _proto.createEl = function createEl() {
-      return _Component.prototype.createEl.call(this, 'div', {
-        className: 'vjs-text-track-display'
-      }, {
-        'translate': 'yes',
-        'aria-live': 'off',
-        'aria-atomic': 'true'
-      });
-    }
-    /**
-     * Clear all displayed {@link TextTrack}s.
-     */
-    ;
-
-    _proto.clearDisplay = function clearDisplay() {
-      if (typeof window.WebVTT === 'function') {
-        window.WebVTT.processCues(window, [], this.el_);
-      }
-    }
-    /**
-     * Update the displayed TextTrack when a either a {@link Player#texttrackchange} or
-     * a {@link Player#fullscreenchange} is fired.
-     *
-     * @listens Player#texttrackchange
-     * @listens Player#fullscreenchange
-     */
-    ;
-
-    _proto.updateDisplay = function updateDisplay() {
-      var tracks = this.player_.textTracks();
-      var allowMultipleShowingTracks = this.options_.allowMultipleShowingTracks;
-      this.clearDisplay();
-
-      if (allowMultipleShowingTracks) {
-        var showingTracks = [];
-
-        for (var _i = 0; _i < tracks.length; ++_i) {
-          var track = tracks[_i];
-
-          if (track.mode !== 'showing') {
-            continue;
-          }
-
-          showingTracks.push(track);
-        }
-
-        this.updateForTrack(showingTracks);
-        return;
-      } //  Track display prioritization model: if multiple tracks are 'showing',
-      //  display the first 'subtitles' or 'captions' track which is 'showing',
-      //  otherwise display the first 'descriptions' track which is 'showing'
-
-
-      var descriptionsTrack = null;
-      var captionsSubtitlesTrack = null;
-      var i = tracks.length;
-
-      while (i--) {
-        var _track = tracks[i];
-
-        if (_track.mode === 'showing') {
-          if (_track.kind === 'descriptions') {
-            descriptionsTrack = _track;
-          } else {
-            captionsSubtitlesTrack = _track;
-          }
-        }
-      }
-
-      if (captionsSubtitlesTrack) {
-        if (this.getAttribute('aria-live') !== 'off') {
-          this.setAttribute('aria-live', 'off');
-        }
-
-        this.updateForTrack(captionsSubtitlesTrack);
-      } else if (descriptionsTrack) {
-        if (this.getAttribute('aria-live') !== 'assertive') {
-          this.setAttribute('aria-live', 'assertive');
-        }
-
-        this.updateForTrack(descriptionsTrack);
-      }
-    }
-    /**
-     * Style {@Link TextTrack} activeCues according to {@Link TextTrackSettings}.
-     *
-     * @param {TextTrack} track
-     *        Text track object containing active cues to style.
-     */
-    ;
-
-    _proto.updateDisplayState = function updateDisplayState(track) {
-      var overrides = this.player_.textTrackSettings.getValues();
-      var cues = track.activeCues;
-      var i = cues.length;
-
-      while (i--) {
-        var cue = cues[i];
-
-        if (!cue) {
-          continue;
-        }
-
-        var cueDiv = cue.displayState;
-
-        if (overrides.color) {
-          cueDiv.firstChild.style.color = overrides.color;
-        }
-
-        if (overrides.textOpacity) {
-          tryUpdateStyle(cueDiv.firstChild, 'color', constructColor(overrides.color || '#fff', overrides.textOpacity));
-        }
-
-        if (overrides.backgroundColor) {
-          cueDiv.firstChild.style.backgroundColor = overrides.backgroundColor;
-        }
-
-        if (overrides.backgroundOpacity) {
-          tryUpdateStyle(cueDiv.firstChild, 'backgroundColor', constructColor(overrides.backgroundColor || '#000', overrides.backgroundOpacity));
-        }
-
-        if (overrides.windowColor) {
-          if (overrides.windowOpacity) {
-            tryUpdateStyle(cueDiv, 'backgroundColor', constructColor(overrides.windowColor, overrides.windowOpacity));
-          } else {
-            cueDiv.style.backgroundColor = overrides.windowColor;
-          }
-        }
-
-        if (overrides.edgeStyle) {
-          if (overrides.edgeStyle === 'dropshadow') {
-            cueDiv.firstChild.style.textShadow = "2px 2px 3px " + darkGray + ", 2px 2px 4px " + darkGray + ", 2px 2px 5px " + darkGray;
-          } else if (overrides.edgeStyle === 'raised') {
-            cueDiv.firstChild.style.textShadow = "1px 1px " + darkGray + ", 2px 2px " + darkGray + ", 3px 3px " + darkGray;
-          } else if (overrides.edgeStyle === 'depressed') {
-            cueDiv.firstChild.style.textShadow = "1px 1px " + lightGray + ", 0 1px " + lightGray + ", -1px -1px " + darkGray + ", 0 -1px " + darkGray;
-          } else if (overrides.edgeStyle === 'uniform') {
-            cueDiv.firstChild.style.textShadow = "0 0 4px " + darkGray + ", 0 0 4px " + darkGray + ", 0 0 4px " + darkGray + ", 0 0 4px " + darkGray;
-          }
-        }
-
-        if (overrides.fontPercent && overrides.fontPercent !== 1) {
-          var fontSize = window.parseFloat(cueDiv.style.fontSize);
-          cueDiv.style.fontSize = fontSize * overrides.fontPercent + 'px';
-          cueDiv.style.height = 'auto';
-          cueDiv.style.top = 'auto';
-        }
-
-        if (overrides.fontFamily && overrides.fontFamily !== 'default') {
-          if (overrides.fontFamily === 'small-caps') {
-            cueDiv.firstChild.style.fontVariant = 'small-caps';
-          } else {
-            cueDiv.firstChild.style.fontFamily = fontMap[overrides.fontFamily];
-          }
-        }
-      }
-    }
-    /**
-     * Add an {@link TextTrack} to to the {@link Tech}s {@link TextTrackList}.
-     *
-     * @param {TextTrack|TextTrack[]} tracks
-     *        Text track object or text track array to be added to the list.
-     */
-    ;
-
-    _proto.updateForTrack = function updateForTrack(tracks) {
-      if (!Array.isArray(tracks)) {
-        tracks = [tracks];
-      }
-
-      if (typeof window.WebVTT !== 'function' || tracks.every(function (track) {
-        return !track.activeCues;
-      })) {
-        return;
-      }
-
-      var cues = []; // push all active track cues
-
-      for (var i = 0; i < tracks.length; ++i) {
-        var track = tracks[i];
-
-        for (var j = 0; j < track.activeCues.length; ++j) {
-          cues.push(track.activeCues[j]);
-        }
-      } // removes all cues before it processes new ones
-
-
-      window.WebVTT.processCues(window, cues, this.el_); // add unique class to each language text track & add settings styling if necessary
-
-      for (var _i2 = 0; _i2 < tracks.length; ++_i2) {
-        var _track2 = tracks[_i2];
-
-        for (var _j = 0; _j < _track2.activeCues.length; ++_j) {
-          var cueEl = _track2.activeCues[_j].displayState;
-          addClass(cueEl, 'vjs-text-track-cue');
-          addClass(cueEl, 'vjs-text-track-cue-' + (_track2.language ? _track2.language : _i2));
-
-          if (_track2.language) {
-            setAttribute(cueEl, 'lang', _track2.language);
-          }
-        }
-
-        if (this.player_.textTrackSettings) {
-          this.updateDisplayState(_track2);
-        }
-      }
-    };
-
-    return TextTrackDisplay;
-  }(Component$1);
-
-  Component$1.registerComponent('TextTrackDisplay', TextTrackDisplay);
-
-  /**
-   * A loading spinner for use during waiting/loading events.
-   *
-   * @extends Component
-   */
-
-  var LoadingSpinner = /*#__PURE__*/function (_Component) {
-    inheritsLoose(LoadingSpinner, _Component);
-
-    function LoadingSpinner() {
-      return _Component.apply(this, arguments) || this;
-    }
-
-    var _proto = LoadingSpinner.prototype;
-
-    /**
-     * Create the `LoadingSpinner`s DOM element.
-     *
-     * @return {Element}
-     *         The dom element that gets created.
-     */
-    _proto.createEl = function createEl$1() {
-      var isAudio = this.player_.isAudio();
-      var playerType = this.localize(isAudio ? 'Audio Player' : 'Video Player');
-      var controlText = createEl('span', {
-        className: 'vjs-control-text',
-        textContent: this.localize('{1} is loading.', [playerType])
-      });
-
-      var el = _Component.prototype.createEl.call(this, 'div', {
-        className: 'vjs-loading-spinner',
-        dir: 'ltr'
-      });
-
-      el.appendChild(controlText);
-      return el;
-    };
-
-    return LoadingSpinner;
-  }(Component$1);
-
-  Component$1.registerComponent('LoadingSpinner', LoadingSpinner);
-
-  /**
-   * Base class for all buttons.
-   *
-   * @extends ClickableComponent
-   */
-
-  var Button = /*#__PURE__*/function (_ClickableComponent) {
-    inheritsLoose(Button, _ClickableComponent);
-
-    function Button() {
-      return _ClickableComponent.apply(this, arguments) || this;
-    }
-
-    var _proto = Button.prototype;
-
-    /**
-     * Create the `Button`s DOM element.
-     *
-     * @param {string} [tag="button"]
-     *        The element's node type. This argument is IGNORED: no matter what
-     *        is passed, it will always create a `button` element.
-     *
-     * @param {Object} [props={}]
-     *        An object of properties that should be set on the element.
-     *
-     * @param {Object} [attributes={}]
-     *        An object of attributes that should be set on the element.
-     *
-     * @return {Element}
-     *         The element that gets created.
-     */
-    _proto.createEl = function createEl$1(tag, props, attributes) {
-      if (props === void 0) {
-        props = {};
-      }
-
-      if (attributes === void 0) {
-        attributes = {};
-      }
-
-      tag = 'button';
-      props = assign({
-        className: this.buildCSSClass()
-      }, props); // Add attributes for button element
-
-      attributes = assign({
-        // Necessary since the default button type is "submit"
-        type: 'button'
-      }, attributes);
-
-      var el = createEl(tag, props, attributes);
-
-      el.appendChild(createEl('span', {
-        className: 'vjs-icon-placeholder'
-      }, {
-        'aria-hidden': true
-      }));
-      this.createControlTextEl(el);
-      return el;
-    }
-    /**
-     * Add a child `Component` inside of this `Button`.
-     *
-     * @param {string|Component} child
-     *        The name or instance of a child to add.
-     *
-     * @param {Object} [options={}]
-     *        The key/value store of options that will get passed to children of
-     *        the child.
-     *
-     * @return {Component}
-     *         The `Component` that gets added as a child. When using a string the
-     *         `Component` will get created by this process.
-     *
-     * @deprecated since version 5
-     */
-    ;
-
-    _proto.addChild = function addChild(child, options) {
-      if (options === void 0) {
-        options = {};
-      }
-
-      var className = this.constructor.name;
-      log$1.warn("Adding an actionable (user controllable) child to a Button (" + className + ") is not supported; use a ClickableComponent instead."); // Avoid the error message generated by ClickableComponent's addChild method
-
-      return Component$1.prototype.addChild.call(this, child, options);
-    }
-    /**
-     * Enable the `Button` element so that it can be activated or clicked. Use this with
-     * {@link Button#disable}.
-     */
-    ;
-
-    _proto.enable = function enable() {
-      _ClickableComponent.prototype.enable.call(this);
-
-      this.el_.removeAttribute('disabled');
-    }
-    /**
-     * Disable the `Button` element so that it cannot be activated or clicked. Use this with
-     * {@link Button#enable}.
-     */
-    ;
-
-    _proto.disable = function disable() {
-      _ClickableComponent.prototype.disable.call(this);
-
-      this.el_.setAttribute('disabled', 'disabled');
-    }
-    /**
-     * This gets called when a `Button` has focus and `keydown` is triggered via a key
-     * press.
-     *
-     * @param {EventTarget~Event} event
-     *        The event that caused this function to get called.
-     *
-     * @listens keydown
-     */
-    ;
-
-    _proto.handleKeyDown = function handleKeyDown(event) {
-      // Ignore Space or Enter key operation, which is handled by the browser for
-      // a button - though not for its super class, ClickableComponent. Also,
-      // prevent the event from propagating through the DOM and triggering Player
-      // hotkeys. We do not preventDefault here because we _want_ the browser to
-      // handle it.
-      if (keycode.isEventKey(event, 'Space') || keycode.isEventKey(event, 'Enter')) {
-        event.stopPropagation();
-        return;
-      } // Pass keypress handling up for unsupported keys
-
-
-      _ClickableComponent.prototype.handleKeyDown.call(this, event);
-    };
-
-    return Button;
-  }(ClickableComponent);
-
-  Component$1.registerComponent('Button', Button);
-
-  /**
-   * The initial play button that shows before the video has played. The hiding of the
-   * `BigPlayButton` get done via CSS and `Player` states.
-   *
-   * @extends Button
-   */
-
-  var BigPlayButton = /*#__PURE__*/function (_Button) {
-    inheritsLoose(BigPlayButton, _Button);
-
-    function BigPlayButton(player, options) {
-      var _this;
-
-      _this = _Button.call(this, player, options) || this;
-      _this.mouseused_ = false;
-
-      _this.on('mousedown', function (e) {
-        return _this.handleMouseDown(e);
-      });
-
-      return _this;
-    }
-    /**
-     * Builds the default DOM `className`.
-     *
-     * @return {string}
-     *         The DOM `className` for this object. Always returns 'vjs-big-play-button'.
-     */
-
-
-    var _proto = BigPlayButton.prototype;
-
-    _proto.buildCSSClass = function buildCSSClass() {
-      return 'vjs-big-play-button';
-    }
-    /**
-     * This gets called when a `BigPlayButton` "clicked". See {@link ClickableComponent}
-     * for more detailed information on what a click can be.
-     *
-     * @param {EventTarget~Event} event
-     *        The `keydown`, `tap`, or `click` event that caused this function to be
-     *        called.
-     *
-     * @listens tap
-     * @listens click
-     */
-    ;
-
-    _proto.handleClick = function handleClick(event) {
-      var playPromise = this.player_.play(); // exit early if clicked via the mouse
-
-      if (this.mouseused_ && event.clientX && event.clientY) {
-        var sourceIsEncrypted = this.player_.usingPlugin('eme') && this.player_.eme.sessions && this.player_.eme.sessions.length > 0;
-        silencePromise(playPromise);
-
-        if (this.player_.tech(true) && // We've observed a bug in IE and Edge when playing back DRM content where
-        // calling .focus() on the video element causes the video to go black,
-        // so we avoid it in that specific case
-        !((IE_VERSION || IS_EDGE) && sourceIsEncrypted)) {
-          this.player_.tech(true).focus();
-        }
-
-        return;
-      }
-
-      var cb = this.player_.getChild('controlBar');
-      var playToggle = cb && cb.getChild('playToggle');
-
-      if (!playToggle) {
-        this.player_.tech(true).focus();
-        return;
-      }
-
-      var playFocus = function playFocus() {
-        return playToggle.focus();
-      };
-
-      if (isPromise(playPromise)) {
-        playPromise.then(playFocus, function () {});
-      } else {
-        this.setTimeout(playFocus, 1);
-      }
-    };
-
-    _proto.handleKeyDown = function handleKeyDown(event) {
-      this.mouseused_ = false;
-
-      _Button.prototype.handleKeyDown.call(this, event);
-    };
-
-    _proto.handleMouseDown = function handleMouseDown(event) {
-      this.mouseused_ = true;
-    };
-
-    return BigPlayButton;
-  }(Button);
-  /**
-   * The text that should display over the `BigPlayButton`s controls. Added to for localization.
-   *
-   * @type {string}
-   * @private
-   */
-
-
-  BigPlayButton.prototype.controlText_ = 'Play Video';
-  Component$1.registerComponent('BigPlayButton', BigPlayButton);
-
-  /**
-   * The `CloseButton` is a `{@link Button}` that fires a `close` event when
-   * it gets clicked.
-   *
-   * @extends Button
-   */
-
-  var CloseButton = /*#__PURE__*/function (_Button) {
-    inheritsLoose(CloseButton, _Button);
-
-    /**
-    * Creates an instance of the this class.
-    *
-    * @param  {Player} player
-    *         The `Player` that this class should be attached to.
-    *
-    * @param  {Object} [options]
-    *         The key/value store of player options.
-    */
-    function CloseButton(player, options) {
-      var _this;
-
-      _this = _Button.call(this, player, options) || this;
-
-      _this.controlText(options && options.controlText || _this.localize('Close'));
-
-      return _this;
-    }
-    /**
-    * Builds the default DOM `className`.
-    *
-    * @return {string}
-    *         The DOM `className` for this object.
-    */
-
-
-    var _proto = CloseButton.prototype;
-
-    _proto.buildCSSClass = function buildCSSClass() {
-      return "vjs-close-button " + _Button.prototype.buildCSSClass.call(this);
-    }
-    /**
-     * This gets called when a `CloseButton` gets clicked. See
-     * {@link ClickableComponent#handleClick} for more information on when
-     * this will be triggered
-     *
-     * @param {EventTarget~Event} event
-     *        The `keydown`, `tap`, or `click` event that caused this function to be
-     *        called.
-     *
-     * @listens tap
-     * @listens click
-     * @fires CloseButton#close
-     */
-    ;
-
-    _proto.handleClick = function handleClick(event) {
-      /**
-       * Triggered when the a `CloseButton` is clicked.
-       *
-       * @event CloseButton#close
-       * @type {EventTarget~Event}
-       *
-       * @property {boolean} [bubbles=false]
-       *           set to false so that the close event does not
-       *           bubble up to parents if there is no listener
-       */
-      this.trigger({
-        type: 'close',
-        bubbles: false
-      });
-    }
-    /**
-     * Event handler that is called when a `CloseButton` receives a
-     * `keydown` event.
-     *
-     * By default, if the key is Esc, it will trigger a `click` event.
-     *
-     * @param {EventTarget~Event} event
-     *        The `keydown` event that caused this function to be called.
-     *
-     * @listens keydown
-     */
-    ;
-
-    _proto.handleKeyDown = function handleKeyDown(event) {
-      // Esc button will trigger `click` event
-      if (keycode.isEventKey(event, 'Esc')) {
-        event.preventDefault();
-        event.stopPropagation();
-        this.trigger('click');
-      } else {
-        // Pass keypress handling up for unsupported keys
-        _Button.prototype.handleKeyDown.call(this, event);
-      }
-    };
-
-    return CloseButton;
-  }(Button);
-
-  Component$1.registerComponent('CloseButton', CloseButton);
-
-  /**
-   * Button to toggle between play and pause.
-   *
-   * @extends Button
-   */
-
-  var PlayToggle = /*#__PURE__*/function (_Button) {
-    inheritsLoose(PlayToggle, _Button);
-
-    /**
-     * Creates an instance of this class.
-     *
-     * @param {Player} player
-     *        The `Player` that this class should be attached to.
-     *
-     * @param {Object} [options={}]
-     *        The key/value store of player options.
-     */
-    function PlayToggle(player, options) {
-      var _this;
-
-      if (options === void 0) {
-        options = {};
-      }
-
-      _this = _Button.call(this, player, options) || this; // show or hide replay icon
-
-      options.replay = options.replay === undefined || options.replay;
-
-      _this.on(player, 'play', function (e) {
-        return _this.handlePlay(e);
-      });
-
-      _this.on(player, 'pause', function (e) {
-        return _this.handlePause(e);
-      });
-
-      if (options.replay) {
-        _this.on(player, 'ended', function (e) {
-          return _this.handleEnded(e);
-        });
-      }
-
-      return _this;
-    }
-    /**
-     * Builds the default DOM `className`.
-     *
-     * @return {string}
-     *         The DOM `className` for this object.
-     */
-
-
-    var _proto = PlayToggle.prototype;
-
-    _proto.buildCSSClass = function buildCSSClass() {
-      return "vjs-play-control " + _Button.prototype.buildCSSClass.call(this);
-    }
-    /**
-     * This gets called when an `PlayToggle` is "clicked". See
-     * {@link ClickableComponent} for more detailed information on what a click can be.
-     *
-     * @param {EventTarget~Event} [event]
-     *        The `keydown`, `tap`, or `click` event that caused this function to be
-     *        called.
-     *
-     * @listens tap
-     * @listens click
-     */
-    ;
-
-    _proto.handleClick = function handleClick(event) {
-      if (this.player_.paused()) {
-        silencePromise(this.player_.play());
-      } else {
-        this.player_.pause();
-      }
-    }
-    /**
-     * This gets called once after the video has ended and the user seeks so that
-     * we can change the replay button back to a play button.
-     *
-     * @param {EventTarget~Event} [event]
-     *        The event that caused this function to run.
-     *
-     * @listens Player#seeked
-     */
-    ;
-
-    _proto.handleSeeked = function handleSeeked(event) {
-      this.removeClass('vjs-ended');
-
-      if (this.player_.paused()) {
-        this.handlePause(event);
-      } else {
-        this.handlePlay(event);
-      }
-    }
-    /**
-     * Add the vjs-playing class to the element so it can change appearance.
-     *
-     * @param {EventTarget~Event} [event]
-     *        The event that caused this function to run.
-     *
-     * @listens Player#play
-     */
-    ;
-
-    _proto.handlePlay = function handlePlay(event) {
-      this.removeClass('vjs-ended');
-      this.removeClass('vjs-paused');
-      this.addClass('vjs-playing'); // change the button text to "Pause"
-
-      this.controlText('Pause');
-    }
-    /**
-     * Add the vjs-paused class to the element so it can change appearance.
-     *
-     * @param {EventTarget~Event} [event]
-     *        The event that caused this function to run.
-     *
-     * @listens Player#pause
-     */
-    ;
-
-    _proto.handlePause = function handlePause(event) {
-      this.removeClass('vjs-playing');
-      this.addClass('vjs-paused'); // change the button text to "Play"
-
-      this.controlText('Play');
-    }
-    /**
-     * Add the vjs-ended class to the element so it can change appearance
-     *
-     * @param {EventTarget~Event} [event]
-     *        The event that caused this function to run.
-     *
-     * @listens Player#ended
-     */
-    ;
-
-    _proto.handleEnded = function handleEnded(event) {
-      var _this2 = this;
-
-      this.removeClass('vjs-playing');
-      this.addClass('vjs-ended'); // change the button text to "Replay"
-
-      this.controlText('Replay'); // on the next seek remove the replay button
-
-      this.one(this.player_, 'seeked', function (e) {
-        return _this2.handleSeeked(e);
-      });
-    };
-
-    return PlayToggle;
-  }(Button);
-  /**
-   * The text that should display over the `PlayToggle`s controls. Added for localization.
-   *
-   * @type {string}
-   * @private
-   */
-
-
-  PlayToggle.prototype.controlText_ = 'Play';
-  Component$1.registerComponent('PlayToggle', PlayToggle);
-
-  /**
-   * @file format-time.js
-   * @module format-time
-   */
-
-  /**
-   * Format seconds as a time string, H:MM:SS or M:SS. Supplying a guide (in
-   * seconds) will force a number of leading zeros to cover the length of the
-   * guide.
-   *
-   * @private
-   * @param  {number} seconds
-   *         Number of seconds to be turned into a string
-   *
-   * @param  {number} guide
-   *         Number (in seconds) to model the string after
-   *
-   * @return {string}
-   *         Time formatted as H:MM:SS or M:SS
-   */
-  var defaultImplementation = function defaultImplementation(seconds, guide) {
-    seconds = seconds < 0 ? 0 : seconds;
-    var s = Math.floor(seconds % 60);
-    var m = Math.floor(seconds / 60 % 60);
-    var h = Math.floor(seconds / 3600);
-    var gm = Math.floor(guide / 60 % 60);
-    var gh = Math.floor(guide / 3600); // handle invalid times
-
-    if (isNaN(seconds) || seconds === Infinity) {
-      // '-' is false for all relational operators (e.g. <, >=) so this setting
-      // will add the minimum number of fields specified by the guide
-      h = m = s = '-';
-    } // Check if we need to show hours
-
-
-    h = h > 0 || gh > 0 ? h + ':' : ''; // If hours are showing, we may need to add a leading zero.
-    // Always show at least one digit of minutes.
-
-    m = ((h || gm >= 10) && m < 10 ? '0' + m : m) + ':'; // Check if leading zero is need for seconds
-
-    s = s < 10 ? '0' + s : s;
-    return h + m + s;
-  }; // Internal pointer to the current implementation.
-
-
-  var implementation = defaultImplementation;
-  /**
-   * Replaces the default formatTime implementation with a custom implementation.
-   *
-   * @param {Function} customImplementation
-   *        A function which will be used in place of the default formatTime
-   *        implementation. Will receive the current time in seconds and the
-   *        guide (in seconds) as arguments.
-   */
-
-  function setFormatTime(customImplementation) {
-    implementation = customImplementation;
-  }
-  /**
-   * Resets formatTime to the default implementation.
-   */
-
-  function resetFormatTime() {
-    implementation = defaultImplementation;
-  }
-  /**
-   * Delegates to either the default time formatting function or a custom
-   * function supplied via `setFormatTime`.
-   *
-   * Formats seconds as a time string (H:MM:SS or M:SS). Supplying a
-   * guide (in seconds) will force a number of leading zeros to cover the
-   * length of the guide.
-   *
-   * @static
-   * @example  formatTime(125, 600) === "02:05"
-   * @param    {number} seconds
-   *           Number of seconds to be turned into a string
-   *
-   * @param    {number} guide
-   *           Number (in seconds) to model the string after
-   *
-   * @return   {string}
-   *           Time formatted as H:MM:SS or M:SS
-   */
-
-  function formatTime(seconds, guide) {
-    if (guide === void 0) {
-      guide = seconds;
-    }
-
-    return implementation(seconds, guide);
-  }
-
-  /**
-   * Displays time information about the video
-   *
-   * @extends Component
-   */
-
-  var TimeDisplay = /*#__PURE__*/function (_Component) {
-    inheritsLoose(TimeDisplay, _Component);
-
-    /**
-     * Creates an instance of this class.
-     *
-     * @param {Player} player
-     *        The `Player` that this class should be attached to.
-     *
-     * @param {Object} [options]
-     *        The key/value store of player options.
-     */
-    function TimeDisplay(player, options) {
-      var _this;
-
-      _this = _Component.call(this, player, options) || this;
-
-      _this.on(player, ['timeupdate', 'ended'], function (e) {
-        return _this.updateContent(e);
-      });
-
-      _this.updateTextNode_();
-
-      return _this;
-    }
-    /**
-     * Create the `Component`'s DOM element
-     *
-     * @return {Element}
-     *         The element that was created.
-     */
-
-
-    var _proto = TimeDisplay.prototype;
-
-    _proto.createEl = function createEl$1() {
-      var className = this.buildCSSClass();
-
-      var el = _Component.prototype.createEl.call(this, 'div', {
-        className: className + " vjs-time-control vjs-control"
-      });
-
-      var span = createEl('span', {
-        className: 'vjs-control-text',
-        textContent: this.localize(this.labelText_) + "\xA0"
-      }, {
-        role: 'presentation'
-      });
-      el.appendChild(span);
-      this.contentEl_ = createEl('span', {
-        className: className + "-display"
-      }, {
-        // tell screen readers not to automatically read the time as it changes
-        'aria-live': 'off',
-        // span elements have no implicit role, but some screen readers (notably VoiceOver)
-        // treat them as a break between items in the DOM when using arrow keys
-        // (or left-to-right swipes on iOS) to read contents of a page. Using
-        // role='presentation' causes VoiceOver to NOT treat this span as a break.
-        'role': 'presentation'
-      });
-      el.appendChild(this.contentEl_);
-      return el;
-    };
-
-    _proto.dispose = function dispose() {
-      this.contentEl_ = null;
-      this.textNode_ = null;
-
-      _Component.prototype.dispose.call(this);
-    }
-    /**
-     * Updates the time display text node with a new time
-     *
-     * @param {number} [time=0] the time to update to
-     *
-     * @private
-     */
-    ;
-
-    _proto.updateTextNode_ = function updateTextNode_(time) {
-      var _this2 = this;
-
-      if (time === void 0) {
-        time = 0;
-      }
-
-      time = formatTime(time);
-
-      if (this.formattedTime_ === time) {
-        return;
-      }
-
-      this.formattedTime_ = time;
-      this.requestNamedAnimationFrame('TimeDisplay#updateTextNode_', function () {
-        if (!_this2.contentEl_) {
-          return;
-        }
-
-        var oldNode = _this2.textNode_;
-
-        if (oldNode && _this2.contentEl_.firstChild !== oldNode) {
-          oldNode = null;
-          log$1.warn('TimeDisplay#updateTextnode_: Prevented replacement of text node element since it was no longer a child of this node. Appending a new node instead.');
-        }
-
-        _this2.textNode_ = document.createTextNode(_this2.formattedTime_);
-
-        if (!_this2.textNode_) {
-          return;
-        }
-
-        if (oldNode) {
-          _this2.contentEl_.replaceChild(_this2.textNode_, oldNode);
-        } else {
-          _this2.contentEl_.appendChild(_this2.textNode_);
-        }
-      });
-    }
-    /**
-     * To be filled out in the child class, should update the displayed time
-     * in accordance with the fact that the current time has changed.
-     *
-     * @param {EventTarget~Event} [event]
-     *        The `timeupdate`  event that caused this to run.
-     *
-     * @listens Player#timeupdate
-     */
-    ;
-
-    _proto.updateContent = function updateContent(event) {};
-
-    return TimeDisplay;
-  }(Component$1);
-  /**
-   * The text that is added to the `TimeDisplay` for screen reader users.
-   *
-   * @type {string}
-   * @private
-   */
-
-
-  TimeDisplay.prototype.labelText_ = 'Time';
-  /**
-   * The text that should display over the `TimeDisplay`s controls. Added to for localization.
-   *
-   * @type {string}
-   * @private
-   *
-   * @deprecated in v7; controlText_ is not used in non-active display Components
-   */
-
-  TimeDisplay.prototype.controlText_ = 'Time';
-  Component$1.registerComponent('TimeDisplay', TimeDisplay);
-
-  /**
-   * Displays the current time
-   *
-   * @extends Component
-   */
-
-  var CurrentTimeDisplay = /*#__PURE__*/function (_TimeDisplay) {
-    inheritsLoose(CurrentTimeDisplay, _TimeDisplay);
-
-    function CurrentTimeDisplay() {
-      return _TimeDisplay.apply(this, arguments) || this;
-    }
-
-    var _proto = CurrentTimeDisplay.prototype;
-
-    /**
-     * Builds the default DOM `className`.
-     *
-     * @return {string}
-     *         The DOM `className` for this object.
-     */
-    _proto.buildCSSClass = function buildCSSClass() {
-      return 'vjs-current-time';
-    }
-    /**
-     * Update current time display
-     *
-     * @param {EventTarget~Event} [event]
-     *        The `timeupdate` event that caused this function to run.
-     *
-     * @listens Player#timeupdate
-     */
-    ;
-
-    _proto.updateContent = function updateContent(event) {
-      // Allows for smooth scrubbing, when player can't keep up.
-      var time;
-
-      if (this.player_.ended()) {
-        time = this.player_.duration();
-      } else {
-        time = this.player_.scrubbing() ? this.player_.getCache().currentTime : this.player_.currentTime();
-      }
-
-      this.updateTextNode_(time);
-    };
-
-    return CurrentTimeDisplay;
-  }(TimeDisplay);
-  /**
-   * The text that is added to the `CurrentTimeDisplay` for screen reader users.
-   *
-   * @type {string}
-   * @private
-   */
-
-
-  CurrentTimeDisplay.prototype.labelText_ = 'Current Time';
-  /**
-   * The text that should display over the `CurrentTimeDisplay`s controls. Added to for localization.
-   *
-   * @type {string}
-   * @private
-   *
-   * @deprecated in v7; controlText_ is not used in non-active display Components
-   */
-
-  CurrentTimeDisplay.prototype.controlText_ = 'Current Time';
-  Component$1.registerComponent('CurrentTimeDisplay', CurrentTimeDisplay);
-
-  /**
-   * Displays the duration
-   *
-   * @extends Component
-   */
-
-  var DurationDisplay = /*#__PURE__*/function (_TimeDisplay) {
-    inheritsLoose(DurationDisplay, _TimeDisplay);
-
-    /**
-     * Creates an instance of this class.
-     *
-     * @param {Player} player
-     *        The `Player` that this class should be attached to.
-     *
-     * @param {Object} [options]
-     *        The key/value store of player options.
-     */
-    function DurationDisplay(player, options) {
-      var _this;
-
-      _this = _TimeDisplay.call(this, player, options) || this;
-
-      var updateContent = function updateContent(e) {
-        return _this.updateContent(e);
-      }; // we do not want to/need to throttle duration changes,
-      // as they should always display the changed duration as
-      // it has changed
-
-
-      _this.on(player, 'durationchange', updateContent); // Listen to loadstart because the player duration is reset when a new media element is loaded,
-      // but the durationchange on the user agent will not fire.
-      // @see [Spec]{@link https://www.w3.org/TR/2011/WD-html5-20110113/video.html#media-element-load-algorithm}
-
-
-      _this.on(player, 'loadstart', updateContent); // Also listen for timeupdate (in the parent) and loadedmetadata because removing those
-      // listeners could have broken dependent applications/libraries. These
-      // can likely be removed for 7.0.
-
-
-      _this.on(player, 'loadedmetadata', updateContent);
-
-      return _this;
-    }
-    /**
-     * Builds the default DOM `className`.
-     *
-     * @return {string}
-     *         The DOM `className` for this object.
-     */
-
-
-    var _proto = DurationDisplay.prototype;
-
-    _proto.buildCSSClass = function buildCSSClass() {
-      return 'vjs-duration';
-    }
-    /**
-     * Update duration time display.
-     *
-     * @param {EventTarget~Event} [event]
-     *        The `durationchange`, `timeupdate`, or `loadedmetadata` event that caused
-     *        this function to be called.
-     *
-     * @listens Player#durationchange
-     * @listens Player#timeupdate
-     * @listens Player#loadedmetadata
-     */
-    ;
-
-    _proto.updateContent = function updateContent(event) {
-      var duration = this.player_.duration();
-      this.updateTextNode_(duration);
-    };
-
-    return DurationDisplay;
-  }(TimeDisplay);
-  /**
-   * The text that is added to the `DurationDisplay` for screen reader users.
-   *
-   * @type {string}
-   * @private
-   */
-
-
-  DurationDisplay.prototype.labelText_ = 'Duration';
-  /**
-   * The text that should display over the `DurationDisplay`s controls. Added to for localization.
-   *
-   * @type {string}
-   * @private
-   *
-   * @deprecated in v7; controlText_ is not used in non-active display Components
-   */
-
-  DurationDisplay.prototype.controlText_ = 'Duration';
-  Component$1.registerComponent('DurationDisplay', DurationDisplay);
-
-  /**
-   * The separator between the current time and duration.
-   * Can be hidden if it's not needed in the design.
-   *
-   * @extends Component
-   */
-
-  var TimeDivider = /*#__PURE__*/function (_Component) {
-    inheritsLoose(TimeDivider, _Component);
-
-    function TimeDivider() {
-      return _Component.apply(this, arguments) || this;
-    }
-
-    var _proto = TimeDivider.prototype;
-
-    /**
-     * Create the component's DOM element
-     *
-     * @return {Element}
-     *         The element that was created.
-     */
-    _proto.createEl = function createEl() {
-      var el = _Component.prototype.createEl.call(this, 'div', {
-        className: 'vjs-time-control vjs-time-divider'
-      }, {
-        // this element and its contents can be hidden from assistive techs since
-        // it is made extraneous by the announcement of the control text
-        // for the current time and duration displays
-        'aria-hidden': true
-      });
-
-      var div = _Component.prototype.createEl.call(this, 'div');
-
-      var span = _Component.prototype.createEl.call(this, 'span', {
-        textContent: '/'
-      });
-
-      div.appendChild(span);
-      el.appendChild(div);
-      return el;
-    };
-
-    return TimeDivider;
-  }(Component$1);
-
-  Component$1.registerComponent('TimeDivider', TimeDivider);
-
-  /**
-   * Displays the time left in the video
-   *
-   * @extends Component
-   */
-
-  var RemainingTimeDisplay = /*#__PURE__*/function (_TimeDisplay) {
-    inheritsLoose(RemainingTimeDisplay, _TimeDisplay);
-
-    /**
-     * Creates an instance of this class.
-     *
-     * @param {Player} player
-     *        The `Player` that this class should be attached to.
-     *
-     * @param {Object} [options]
-     *        The key/value store of player options.
-     */
-    function RemainingTimeDisplay(player, options) {
-      var _this;
-
-      _this = _TimeDisplay.call(this, player, options) || this;
-
-      _this.on(player, 'durationchange', function (e) {
-        return _this.updateContent(e);
-      });
-
-      return _this;
-    }
-    /**
-     * Builds the default DOM `className`.
-     *
-     * @return {string}
-     *         The DOM `className` for this object.
-     */
-
-
-    var _proto = RemainingTimeDisplay.prototype;
-
-    _proto.buildCSSClass = function buildCSSClass() {
-      return 'vjs-remaining-time';
-    }
-    /**
-     * Create the `Component`'s DOM element with the "minus" characted prepend to the time
-     *
-     * @return {Element}
-     *         The element that was created.
-     */
-    ;
-
-    _proto.createEl = function createEl$1() {
-      var el = _TimeDisplay.prototype.createEl.call(this);
-
-      if (this.options_.displayNegative !== false) {
-        el.insertBefore(createEl('span', {}, {
-          'aria-hidden': true
-        }, '-'), this.contentEl_);
-      }
-
-      return el;
-    }
-    /**
-     * Update remaining time display.
-     *
-     * @param {EventTarget~Event} [event]
-     *        The `timeupdate` or `durationchange` event that caused this to run.
-     *
-     * @listens Player#timeupdate
-     * @listens Player#durationchange
-     */
-    ;
-
-    _proto.updateContent = function updateContent(event) {
-      if (typeof this.player_.duration() !== 'number') {
-        return;
-      }
-
-      var time; // @deprecated We should only use remainingTimeDisplay
-      // as of video.js 7
-
-      if (this.player_.ended()) {
-        time = 0;
-      } else if (this.player_.remainingTimeDisplay) {
-        time = this.player_.remainingTimeDisplay();
-      } else {
-        time = this.player_.remainingTime();
-      }
-
-      this.updateTextNode_(time);
-    };
-
-    return RemainingTimeDisplay;
-  }(TimeDisplay);
-  /**
-   * The text that is added to the `RemainingTimeDisplay` for screen reader users.
-   *
-   * @type {string}
-   * @private
-   */
-
-
-  RemainingTimeDisplay.prototype.labelText_ = 'Remaining Time';
-  /**
-   * The text that should display over the `RemainingTimeDisplay`s controls. Added to for localization.
-   *
-   * @type {string}
-   * @private
-   *
-   * @deprecated in v7; controlText_ is not used in non-active display Components
-   */
-
-  RemainingTimeDisplay.prototype.controlText_ = 'Remaining Time';
-  Component$1.registerComponent('RemainingTimeDisplay', RemainingTimeDisplay);
-
-  /**
-   * Displays the live indicator when duration is Infinity.
-   *
-   * @extends Component
-   */
-
-  var LiveDisplay = /*#__PURE__*/function (_Component) {
-    inheritsLoose(LiveDisplay, _Component);
-
-    /**
-     * Creates an instance of this class.
-     *
-     * @param {Player} player
-     *        The `Player` that this class should be attached to.
-     *
-     * @param {Object} [options]
-     *        The key/value store of player options.
-     */
-    function LiveDisplay(player, options) {
-      var _this;
-
-      _this = _Component.call(this, player, options) || this;
-
-      _this.updateShowing();
-
-      _this.on(_this.player(), 'durationchange', function (e) {
-        return _this.updateShowing(e);
-      });
-
-      return _this;
-    }
-    /**
-     * Create the `Component`'s DOM element
-     *
-     * @return {Element}
-     *         The element that was created.
-     */
-
-
-    var _proto = LiveDisplay.prototype;
-
-    _proto.createEl = function createEl$1() {
-      var el = _Component.prototype.createEl.call(this, 'div', {
-        className: 'vjs-live-control vjs-control'
-      });
-
-      this.contentEl_ = createEl('div', {
-        className: 'vjs-live-display'
-      }, {
-        'aria-live': 'off'
-      });
-      this.contentEl_.appendChild(createEl('span', {
-        className: 'vjs-control-text',
-        textContent: this.localize('Stream Type') + "\xA0"
-      }));
-      this.contentEl_.appendChild(document.createTextNode(this.localize('LIVE')));
-      el.appendChild(this.contentEl_);
-      return el;
-    };
-
-    _proto.dispose = function dispose() {
-      this.contentEl_ = null;
-
-      _Component.prototype.dispose.call(this);
-    }
-    /**
-     * Check the duration to see if the LiveDisplay should be showing or not. Then show/hide
-     * it accordingly
-     *
-     * @param {EventTarget~Event} [event]
-     *        The {@link Player#durationchange} event that caused this function to run.
-     *
-     * @listens Player#durationchange
-     */
-    ;
-
-    _proto.updateShowing = function updateShowing(event) {
-      if (this.player().duration() === Infinity) {
-        this.show();
-      } else {
-        this.hide();
-      }
-    };
-
-    return LiveDisplay;
-  }(Component$1);
-
-  Component$1.registerComponent('LiveDisplay', LiveDisplay);
-
-  /**
-   * Displays the live indicator when duration is Infinity.
-   *
-   * @extends Component
-   */
-
-  var SeekToLive = /*#__PURE__*/function (_Button) {
-    inheritsLoose(SeekToLive, _Button);
-
-    /**
-     * Creates an instance of this class.
-     *
-     * @param {Player} player
-     *        The `Player` that this class should be attached to.
-     *
-     * @param {Object} [options]
-     *        The key/value store of player options.
-     */
-    function SeekToLive(player, options) {
-      var _this;
-
-      _this = _Button.call(this, player, options) || this;
-
-      _this.updateLiveEdgeStatus();
-
-      if (_this.player_.liveTracker) {
-        _this.updateLiveEdgeStatusHandler_ = function (e) {
-          return _this.updateLiveEdgeStatus(e);
-        };
-
-        _this.on(_this.player_.liveTracker, 'liveedgechange', _this.updateLiveEdgeStatusHandler_);
-      }
-
-      return _this;
-    }
-    /**
-     * Create the `Component`'s DOM element
-     *
-     * @return {Element}
-     *         The element that was created.
-     */
-
-
-    var _proto = SeekToLive.prototype;
-
-    _proto.createEl = function createEl$1() {
-      var el = _Button.prototype.createEl.call(this, 'button', {
-        className: 'vjs-seek-to-live-control vjs-control'
-      });
-
-      this.textEl_ = createEl('span', {
-        className: 'vjs-seek-to-live-text',
-        textContent: this.localize('LIVE')
-      }, {
-        'aria-hidden': 'true'
-      });
-      el.appendChild(this.textEl_);
-      return el;
-    }
-    /**
-     * Update the state of this button if we are at the live edge
-     * or not
-     */
-    ;
-
-    _proto.updateLiveEdgeStatus = function updateLiveEdgeStatus() {
-      // default to live edge
-      if (!this.player_.liveTracker || this.player_.liveTracker.atLiveEdge()) {
-        this.setAttribute('aria-disabled', true);
-        this.addClass('vjs-at-live-edge');
-        this.controlText('Seek to live, currently playing live');
-      } else {
-        this.setAttribute('aria-disabled', false);
-        this.removeClass('vjs-at-live-edge');
-        this.controlText('Seek to live, currently behind live');
-      }
-    }
-    /**
-     * On click bring us as near to the live point as possible.
-     * This requires that we wait for the next `live-seekable-change`
-     * event which will happen every segment length seconds.
-     */
-    ;
-
-    _proto.handleClick = function handleClick() {
-      this.player_.liveTracker.seekToLiveEdge();
-    }
-    /**
-     * Dispose of the element and stop tracking
-     */
-    ;
-
-    _proto.dispose = function dispose() {
-      if (this.player_.liveTracker) {
-        this.off(this.player_.liveTracker, 'liveedgechange', this.updateLiveEdgeStatusHandler_);
-      }
-
-      this.textEl_ = null;
-
-      _Button.prototype.dispose.call(this);
-    };
-
-    return SeekToLive;
-  }(Button);
-
-  SeekToLive.prototype.controlText_ = 'Seek to live, currently playing live';
-  Component$1.registerComponent('SeekToLive', SeekToLive);
-
-  /**
-   * Keep a number between a min and a max value
-   *
-   * @param {number} number
-   *        The number to clamp
-   *
-   * @param {number} min
-   *        The minimum value
-   * @param {number} max
-   *        The maximum value
-   *
-   * @return {number}
-   *         the clamped number
-   */
-  var clamp = function clamp(number, min, max) {
-    number = Number(number);
-    return Math.min(max, Math.max(min, isNaN(number) ? min : number));
-  };
-
-  /**
-   * The base functionality for a slider. Can be vertical or horizontal.
-   * For instance the volume bar or the seek bar on a video is a slider.
-   *
-   * @extends Component
-   */
-
-  var Slider = /*#__PURE__*/function (_Component) {
-    inheritsLoose(Slider, _Component);
-
-    /**
-    * Create an instance of this class
-    *
-    * @param {Player} player
-    *        The `Player` that this class should be attached to.
-    *
-    * @param {Object} [options]
-    *        The key/value store of player options.
-    */
-    function Slider(player, options) {
-      var _this;
-
-      _this = _Component.call(this, player, options) || this;
-
-      _this.handleMouseDown_ = function (e) {
-        return _this.handleMouseDown(e);
-      };
-
-      _this.handleMouseUp_ = function (e) {
-        return _this.handleMouseUp(e);
-      };
-
-      _this.handleKeyDown_ = function (e) {
-        return _this.handleKeyDown(e);
-      };
-
-      _this.handleClick_ = function (e) {
-        return _this.handleClick(e);
-      };
-
-      _this.handleMouseMove_ = function (e) {
-        return _this.handleMouseMove(e);
-      };
-
-      _this.update_ = function (e) {
-        return _this.update(e);
-      }; // Set property names to bar to match with the child Slider class is looking for
-
-
-      _this.bar = _this.getChild(_this.options_.barName); // Set a horizontal or vertical class on the slider depending on the slider type
-
-      _this.vertical(!!_this.options_.vertical);
-
-      _this.enable();
-
-      return _this;
-    }
-    /**
-     * Are controls are currently enabled for this slider or not.
-     *
-     * @return {boolean}
-     *         true if controls are enabled, false otherwise
-     */
-
-
-    var _proto = Slider.prototype;
-
-    _proto.enabled = function enabled() {
-      return this.enabled_;
-    }
-    /**
-     * Enable controls for this slider if they are disabled
-     */
-    ;
-
-    _proto.enable = function enable() {
-      if (this.enabled()) {
-        return;
-      }
-
-      this.on('mousedown', this.handleMouseDown_);
-      this.on('touchstart', this.handleMouseDown_);
-      this.on('keydown', this.handleKeyDown_);
-      this.on('click', this.handleClick_); // TODO: deprecated, controlsvisible does not seem to be fired
-
-      this.on(this.player_, 'controlsvisible', this.update);
-
-      if (this.playerEvent) {
-        this.on(this.player_, this.playerEvent, this.update);
-      }
-
-      this.removeClass('disabled');
-      this.setAttribute('tabindex', 0);
-      this.enabled_ = true;
-    }
-    /**
-     * Disable controls for this slider if they are enabled
-     */
-    ;
-
-    _proto.disable = function disable() {
-      if (!this.enabled()) {
-        return;
-      }
-
-      var doc = this.bar.el_.ownerDocument;
-      this.off('mousedown', this.handleMouseDown_);
-      this.off('touchstart', this.handleMouseDown_);
-      this.off('keydown', this.handleKeyDown_);
-      this.off('click', this.handleClick_);
-      this.off(this.player_, 'controlsvisible', this.update_);
-      this.off(doc, 'mousemove', this.handleMouseMove_);
-      this.off(doc, 'mouseup', this.handleMouseUp_);
-      this.off(doc, 'touchmove', this.handleMouseMove_);
-      this.off(doc, 'touchend', this.handleMouseUp_);
-      this.removeAttribute('tabindex');
-      this.addClass('disabled');
-
-      if (this.playerEvent) {
-        this.off(this.player_, this.playerEvent, this.update);
-      }
-
-      this.enabled_ = false;
-    }
-    /**
-     * Create the `Slider`s DOM element.
-     *
-     * @param {string} type
-     *        Type of element to create.
-     *
-     * @param {Object} [props={}]
-     *        List of properties in Object form.
-     *
-     * @param {Object} [attributes={}]
-     *        list of attributes in Object form.
-     *
-     * @return {Element}
-     *         The element that gets created.
-     */
-    ;
-
-    _proto.createEl = function createEl(type, props, attributes) {
-      if (props === void 0) {
-        props = {};
-      }
-
-      if (attributes === void 0) {
-        attributes = {};
-      }
-
-      // Add the slider element class to all sub classes
-      props.className = props.className + ' vjs-slider';
-      props = assign({
-        tabIndex: 0
-      }, props);
-      attributes = assign({
-        'role': 'slider',
-        'aria-valuenow': 0,
-        'aria-valuemin': 0,
-        'aria-valuemax': 100,
-        'tabIndex': 0
-      }, attributes);
-      return _Component.prototype.createEl.call(this, type, props, attributes);
-    }
-    /**
-     * Handle `mousedown` or `touchstart` events on the `Slider`.
-     *
-     * @param {EventTarget~Event} event
-     *        `mousedown` or `touchstart` event that triggered this function
-     *
-     * @listens mousedown
-     * @listens touchstart
-     * @fires Slider#slideractive
-     */
-    ;
-
-    _proto.handleMouseDown = function handleMouseDown(event) {
-      var doc = this.bar.el_.ownerDocument;
-
-      if (event.type === 'mousedown') {
-        event.preventDefault();
-      } // Do not call preventDefault() on touchstart in Chrome
-      // to avoid console warnings. Use a 'touch-action: none' style
-      // instead to prevent unintented scrolling.
-      // https://developers.google.com/web/updates/2017/01/scrolling-intervention
-
-
-      if (event.type === 'touchstart' && !IS_CHROME) {
-        event.preventDefault();
-      }
-
-      blockTextSelection();
-      this.addClass('vjs-sliding');
-      /**
-       * Triggered when the slider is in an active state
-       *
-       * @event Slider#slideractive
-       * @type {EventTarget~Event}
-       */
-
-      this.trigger('slideractive');
-      this.on(doc, 'mousemove', this.handleMouseMove_);
-      this.on(doc, 'mouseup', this.handleMouseUp_);
-      this.on(doc, 'touchmove', this.handleMouseMove_);
-      this.on(doc, 'touchend', this.handleMouseUp_);
-      this.handleMouseMove(event, true);
-    }
-    /**
-     * Handle the `mousemove`, `touchmove`, and `mousedown` events on this `Slider`.
-     * The `mousemove` and `touchmove` events will only only trigger this function during
-     * `mousedown` and `touchstart`. This is due to {@link Slider#handleMouseDown} and
-     * {@link Slider#handleMouseUp}.
-     *
-     * @param {EventTarget~Event} event
-     *        `mousedown`, `mousemove`, `touchstart`, or `touchmove` event that triggered
-     *        this function
-     * @param {boolean} mouseDown this is a flag that should be set to true if `handleMouseMove` is called directly. It allows us to skip things that should not happen if coming from mouse down but should happen on regular mouse move handler. Defaults to false.
-     *
-     * @listens mousemove
-     * @listens touchmove
-     */
-    ;
-
-    _proto.handleMouseMove = function handleMouseMove(event) {}
-    /**
-     * Handle `mouseup` or `touchend` events on the `Slider`.
-     *
-     * @param {EventTarget~Event} event
-     *        `mouseup` or `touchend` event that triggered this function.
-     *
-     * @listens touchend
-     * @listens mouseup
-     * @fires Slider#sliderinactive
-     */
-    ;
-
-    _proto.handleMouseUp = function handleMouseUp() {
-      var doc = this.bar.el_.ownerDocument;
-      unblockTextSelection();
-      this.removeClass('vjs-sliding');
-      /**
-       * Triggered when the slider is no longer in an active state.
-       *
-       * @event Slider#sliderinactive
-       * @type {EventTarget~Event}
-       */
-
-      this.trigger('sliderinactive');
-      this.off(doc, 'mousemove', this.handleMouseMove_);
-      this.off(doc, 'mouseup', this.handleMouseUp_);
-      this.off(doc, 'touchmove', this.handleMouseMove_);
-      this.off(doc, 'touchend', this.handleMouseUp_);
-      this.update();
-    }
-    /**
-     * Update the progress bar of the `Slider`.
-     *
-     * @return {number}
-     *          The percentage of progress the progress bar represents as a
-     *          number from 0 to 1.
-     */
-    ;
-
-    _proto.update = function update() {
-      var _this2 = this;
-
-      // In VolumeBar init we have a setTimeout for update that pops and update
-      // to the end of the execution stack. The player is destroyed before then
-      // update will cause an error
-      // If there's no bar...
-      if (!this.el_ || !this.bar) {
-        return;
-      } // clamp progress between 0 and 1
-      // and only round to four decimal places, as we round to two below
-
-
-      var progress = this.getProgress();
-
-      if (progress === this.progress_) {
-        return progress;
-      }
-
-      this.progress_ = progress;
-      this.requestNamedAnimationFrame('Slider#update', function () {
-        // Set the new bar width or height
-        var sizeKey = _this2.vertical() ? 'height' : 'width'; // Convert to a percentage for css value
-
-        _this2.bar.el().style[sizeKey] = (progress * 100).toFixed(2) + '%';
-      });
-      return progress;
-    }
-    /**
-     * Get the percentage of the bar that should be filled
-     * but clamped and rounded.
-     *
-     * @return {number}
-     *         percentage filled that the slider is
-     */
-    ;
-
-    _proto.getProgress = function getProgress() {
-      return Number(clamp(this.getPercent(), 0, 1).toFixed(4));
-    }
-    /**
-     * Calculate distance for slider
-     *
-     * @param {EventTarget~Event} event
-     *        The event that caused this function to run.
-     *
-     * @return {number}
-     *         The current position of the Slider.
-     *         - position.x for vertical `Slider`s
-     *         - position.y for horizontal `Slider`s
-     */
-    ;
-
-    _proto.calculateDistance = function calculateDistance(event) {
-      var position = getPointerPosition(this.el_, event);
-
-      if (this.vertical()) {
-        return position.y;
-      }
-
-      return position.x;
-    }
-    /**
-     * Handle a `keydown` event on the `Slider`. Watches for left, rigth, up, and down
-     * arrow keys. This function will only be called when the slider has focus. See
-     * {@link Slider#handleFocus} and {@link Slider#handleBlur}.
-     *
-     * @param {EventTarget~Event} event
-     *        the `keydown` event that caused this function to run.
-     *
-     * @listens keydown
-     */
-    ;
-
-    _proto.handleKeyDown = function handleKeyDown(event) {
-      // Left and Down Arrows
-      if (keycode.isEventKey(event, 'Left') || keycode.isEventKey(event, 'Down')) {
-        event.preventDefault();
-        event.stopPropagation();
-        this.stepBack(); // Up and Right Arrows
-      } else if (keycode.isEventKey(event, 'Right') || keycode.isEventKey(event, 'Up')) {
-        event.preventDefault();
-        event.stopPropagation();
-        this.stepForward();
-      } else {
-        // Pass keydown handling up for unsupported keys
-        _Component.prototype.handleKeyDown.call(this, event);
-      }
-    }
-    /**
-     * Listener for click events on slider, used to prevent clicks
-     *   from bubbling up to parent elements like button menus.
-     *
-     * @param {Object} event
-     *        Event that caused this object to run
-     */
-    ;
-
-    _proto.handleClick = function handleClick(event) {
-      event.stopPropagation();
-      event.preventDefault();
-    }
-    /**
-     * Get/set if slider is horizontal for vertical
-     *
-     * @param {boolean} [bool]
-     *        - true if slider is vertical,
-     *        - false is horizontal
-     *
-     * @return {boolean}
-     *         - true if slider is vertical, and getting
-     *         - false if the slider is horizontal, and getting
-     */
-    ;
-
-    _proto.vertical = function vertical(bool) {
-      if (bool === undefined) {
-        return this.vertical_ || false;
-      }
-
-      this.vertical_ = !!bool;
-
-      if (this.vertical_) {
-        this.addClass('vjs-slider-vertical');
-      } else {
-        this.addClass('vjs-slider-horizontal');
-      }
-    };
-
-    return Slider;
-  }(Component$1);
-
-  Component$1.registerComponent('Slider', Slider);
-
-  var percentify = function percentify(time, end) {
-    return clamp(time / end * 100, 0, 100).toFixed(2) + '%';
-  };
-  /**
-   * Shows loading progress
-   *
-   * @extends Component
-   */
-
-
-  var LoadProgressBar = /*#__PURE__*/function (_Component) {
-    inheritsLoose(LoadProgressBar, _Component);
-
-    /**
-     * Creates an instance of this class.
-     *
-     * @param {Player} player
-     *        The `Player` that this class should be attached to.
-     *
-     * @param {Object} [options]
-     *        The key/value store of player options.
-     */
-    function LoadProgressBar(player, options) {
-      var _this;
-
-      _this = _Component.call(this, player, options) || this;
-      _this.partEls_ = [];
-
-      _this.on(player, 'progress', function (e) {
-        return _this.update(e);
-      });
-
-      return _this;
-    }
-    /**
-     * Create the `Component`'s DOM element
-     *
-     * @return {Element}
-     *         The element that was created.
-     */
-
-
-    var _proto = LoadProgressBar.prototype;
-
-    _proto.createEl = function createEl$1() {
-      var el = _Component.prototype.createEl.call(this, 'div', {
-        className: 'vjs-load-progress'
-      });
-
-      var wrapper = createEl('span', {
-        className: 'vjs-control-text'
-      });
-      var loadedText = createEl('span', {
-        textContent: this.localize('Loaded')
-      });
-      var separator = document.createTextNode(': ');
-      this.percentageEl_ = createEl('span', {
-        className: 'vjs-control-text-loaded-percentage',
-        textContent: '0%'
-      });
-      el.appendChild(wrapper);
-      wrapper.appendChild(loadedText);
-      wrapper.appendChild(separator);
-      wrapper.appendChild(this.percentageEl_);
-      return el;
-    };
-
-    _proto.dispose = function dispose() {
-      this.partEls_ = null;
-      this.percentageEl_ = null;
-
-      _Component.prototype.dispose.call(this);
-    }
-    /**
-     * Update progress bar
-     *
-     * @param {EventTarget~Event} [event]
-     *        The `progress` event that caused this function to run.
-     *
-     * @listens Player#progress
-     */
-    ;
-
-    _proto.update = function update(event) {
-      var _this2 = this;
-
-      this.requestNamedAnimationFrame('LoadProgressBar#update', function () {
-        var liveTracker = _this2.player_.liveTracker;
-
-        var buffered = _this2.player_.buffered();
-
-        var duration = liveTracker && liveTracker.isLive() ? liveTracker.seekableEnd() : _this2.player_.duration();
-
-        var bufferedEnd = _this2.player_.bufferedEnd();
-
-        var children = _this2.partEls_;
-        var percent = percentify(bufferedEnd, duration);
-
-        if (_this2.percent_ !== percent) {
-          // update the width of the progress bar
-          _this2.el_.style.width = percent; // update the control-text
-
-          textContent(_this2.percentageEl_, percent);
-          _this2.percent_ = percent;
-        } // add child elements to represent the individual buffered time ranges
-
-
-        for (var i = 0; i < buffered.length; i++) {
-          var start = buffered.start(i);
-          var end = buffered.end(i);
-          var part = children[i];
-
-          if (!part) {
-            part = _this2.el_.appendChild(createEl());
-            children[i] = part;
-          } //  only update if changed
-
-
-          if (part.dataset.start === start && part.dataset.end === end) {
-            continue;
-          }
-
-          part.dataset.start = start;
-          part.dataset.end = end; // set the percent based on the width of the progress bar (bufferedEnd)
-
-          part.style.left = percentify(start, bufferedEnd);
-          part.style.width = percentify(end - start, bufferedEnd);
-        } // remove unused buffered range elements
-
-
-        for (var _i = children.length; _i > buffered.length; _i--) {
-          _this2.el_.removeChild(children[_i - 1]);
-        }
-
-        children.length = buffered.length;
-      });
-    };
-
-    return LoadProgressBar;
-  }(Component$1);
-
-  Component$1.registerComponent('LoadProgressBar', LoadProgressBar);
-
-  /**
-   * Time tooltips display a time above the progress bar.
-   *
-   * @extends Component
-   */
-
-  var TimeTooltip = /*#__PURE__*/function (_Component) {
-    inheritsLoose(TimeTooltip, _Component);
-
-    /**
-     * Creates an instance of this class.
-     *
-     * @param {Player} player
-     *        The {@link Player} that this class should be attached to.
-     *
-     * @param {Object} [options]
-     *        The key/value store of player options.
-     */
-    function TimeTooltip(player, options) {
-      var _this;
-
-      _this = _Component.call(this, player, options) || this;
-      _this.update = throttle(bind(assertThisInitialized(_this), _this.update), UPDATE_REFRESH_INTERVAL);
-      return _this;
-    }
-    /**
-     * Create the time tooltip DOM element
-     *
-     * @return {Element}
-     *         The element that was created.
-     */
-
-
-    var _proto = TimeTooltip.prototype;
-
-    _proto.createEl = function createEl() {
-      return _Component.prototype.createEl.call(this, 'div', {
-        className: 'vjs-time-tooltip'
-      }, {
-        'aria-hidden': 'true'
-      });
-    }
-    /**
-     * Updates the position of the time tooltip relative to the `SeekBar`.
-     *
-     * @param {Object} seekBarRect
-     *        The `ClientRect` for the {@link SeekBar} element.
-     *
-     * @param {number} seekBarPoint
-     *        A number from 0 to 1, representing a horizontal reference point
-     *        from the left edge of the {@link SeekBar}
-     */
-    ;
-
-    _proto.update = function update(seekBarRect, seekBarPoint, content) {
-      var tooltipRect = findPosition(this.el_);
-      var playerRect = getBoundingClientRect(this.player_.el());
-      var seekBarPointPx = seekBarRect.width * seekBarPoint; // do nothing if either rect isn't available
-      // for example, if the player isn't in the DOM for testing
-
-      if (!playerRect || !tooltipRect) {
-        return;
-      } // This is the space left of the `seekBarPoint` available within the bounds
-      // of the player. We calculate any gap between the left edge of the player
-      // and the left edge of the `SeekBar` and add the number of pixels in the
-      // `SeekBar` before hitting the `seekBarPoint`
-
-
-      var spaceLeftOfPoint = seekBarRect.left - playerRect.left + seekBarPointPx; // This is the space right of the `seekBarPoint` available within the bounds
-      // of the player. We calculate the number of pixels from the `seekBarPoint`
-      // to the right edge of the `SeekBar` and add to that any gap between the
-      // right edge of the `SeekBar` and the player.
-
-      var spaceRightOfPoint = seekBarRect.width - seekBarPointPx + (playerRect.right - seekBarRect.right); // This is the number of pixels by which the tooltip will need to be pulled
-      // further to the right to center it over the `seekBarPoint`.
-
-      var pullTooltipBy = tooltipRect.width / 2; // Adjust the `pullTooltipBy` distance to the left or right depending on
-      // the results of the space calculations above.
-
-      if (spaceLeftOfPoint < pullTooltipBy) {
-        pullTooltipBy += pullTooltipBy - spaceLeftOfPoint;
-      } else if (spaceRightOfPoint < pullTooltipBy) {
-        pullTooltipBy = spaceRightOfPoint;
-      } // Due to the imprecision of decimal/ratio based calculations and varying
-      // rounding behaviors, there are cases where the spacing adjustment is off
-      // by a pixel or two. This adds insurance to these calculations.
-
-
-      if (pullTooltipBy < 0) {
-        pullTooltipBy = 0;
-      } else if (pullTooltipBy > tooltipRect.width) {
-        pullTooltipBy = tooltipRect.width;
-      } // prevent small width fluctuations within 0.4px from
-      // changing the value below.
-      // This really helps for live to prevent the play
-      // progress time tooltip from jittering
-
-
-      pullTooltipBy = Math.round(pullTooltipBy);
-      this.el_.style.right = "-" + pullTooltipBy + "px";
-      this.write(content);
-    }
-    /**
-     * Write the time to the tooltip DOM element.
-     *
-     * @param {string} content
-     *        The formatted time for the tooltip.
-     */
-    ;
-
-    _proto.write = function write(content) {
-      textContent(this.el_, content);
-    }
-    /**
-     * Updates the position of the time tooltip relative to the `SeekBar`.
-     *
-     * @param {Object} seekBarRect
-     *        The `ClientRect` for the {@link SeekBar} element.
-     *
-     * @param {number} seekBarPoint
-     *        A number from 0 to 1, representing a horizontal reference point
-     *        from the left edge of the {@link SeekBar}
-     *
-     * @param {number} time
-     *        The time to update the tooltip to, not used during live playback
-     *
-     * @param {Function} cb
-     *        A function that will be called during the request animation frame
-     *        for tooltips that need to do additional animations from the default
-     */
-    ;
-
-    _proto.updateTime = function updateTime(seekBarRect, seekBarPoint, time, cb) {
-      var _this2 = this;
-
-      this.requestNamedAnimationFrame('TimeTooltip#updateTime', function () {
-        var content;
-
-        var duration = _this2.player_.duration();
-
-        if (_this2.player_.liveTracker && _this2.player_.liveTracker.isLive()) {
-          var liveWindow = _this2.player_.liveTracker.liveWindow();
-
-          var secondsBehind = liveWindow - seekBarPoint * liveWindow;
-          content = (secondsBehind < 1 ? '' : '-') + formatTime(secondsBehind, liveWindow);
-        } else {
-          content = formatTime(time, duration);
-        }
-
-        _this2.update(seekBarRect, seekBarPoint, content);
-
-        if (cb) {
-          cb();
-        }
-      });
-    };
-
-    return TimeTooltip;
-  }(Component$1);
-
-  Component$1.registerComponent('TimeTooltip', TimeTooltip);
-
-  /**
-   * Used by {@link SeekBar} to display media playback progress as part of the
-   * {@link ProgressControl}.
-   *
-   * @extends Component
-   */
-
-  var PlayProgressBar = /*#__PURE__*/function (_Component) {
-    inheritsLoose(PlayProgressBar, _Component);
-
-    /**
-     * Creates an instance of this class.
-     *
-     * @param {Player} player
-     *        The {@link Player} that this class should be attached to.
-     *
-     * @param {Object} [options]
-     *        The key/value store of player options.
-     */
-    function PlayProgressBar(player, options) {
-      var _this;
-
-      _this = _Component.call(this, player, options) || this;
-      _this.update = throttle(bind(assertThisInitialized(_this), _this.update), UPDATE_REFRESH_INTERVAL);
-      return _this;
-    }
-    /**
-     * Create the the DOM element for this class.
-     *
-     * @return {Element}
-     *         The element that was created.
-     */
-
-
-    var _proto = PlayProgressBar.prototype;
-
-    _proto.createEl = function createEl() {
-      return _Component.prototype.createEl.call(this, 'div', {
-        className: 'vjs-play-progress vjs-slider-bar'
-      }, {
-        'aria-hidden': 'true'
-      });
-    }
-    /**
-     * Enqueues updates to its own DOM as well as the DOM of its
-     * {@link TimeTooltip} child.
-     *
-     * @param {Object} seekBarRect
-     *        The `ClientRect` for the {@link SeekBar} element.
-     *
-     * @param {number} seekBarPoint
-     *        A number from 0 to 1, representing a horizontal reference point
-     *        from the left edge of the {@link SeekBar}
-     */
-    ;
-
-    _proto.update = function update(seekBarRect, seekBarPoint) {
-      var timeTooltip = this.getChild('timeTooltip');
-
-      if (!timeTooltip) {
-        return;
-      }
-
-      var time = this.player_.scrubbing() ? this.player_.getCache().currentTime : this.player_.currentTime();
-      timeTooltip.updateTime(seekBarRect, seekBarPoint, time);
-    };
-
-    return PlayProgressBar;
-  }(Component$1);
-  /**
-   * Default options for {@link PlayProgressBar}.
-   *
-   * @type {Object}
-   * @private
-   */
-
-
-  PlayProgressBar.prototype.options_ = {
-    children: []
-  }; // Time tooltips should not be added to a player on mobile devices
-
-  if (!IS_IOS && !IS_ANDROID) {
-    PlayProgressBar.prototype.options_.children.push('timeTooltip');
-  }
-
-  Component$1.registerComponent('PlayProgressBar', PlayProgressBar);
-
-  /**
-   * The {@link MouseTimeDisplay} component tracks mouse movement over the
-   * {@link ProgressControl}. It displays an indicator and a {@link TimeTooltip}
-   * indicating the time which is represented by a given point in the
-   * {@link ProgressControl}.
-   *
-   * @extends Component
-   */
-
-  var MouseTimeDisplay = /*#__PURE__*/function (_Component) {
-    inheritsLoose(MouseTimeDisplay, _Component);
-
-    /**
-     * Creates an instance of this class.
-     *
-     * @param {Player} player
-     *        The {@link Player} that this class should be attached to.
-     *
-     * @param {Object} [options]
-     *        The key/value store of player options.
-     */
-    function MouseTimeDisplay(player, options) {
-      var _this;
-
-      _this = _Component.call(this, player, options) || this;
-      _this.update = throttle(bind(assertThisInitialized(_this), _this.update), UPDATE_REFRESH_INTERVAL);
-      return _this;
-    }
-    /**
-     * Create the DOM element for this class.
-     *
-     * @return {Element}
-     *         The element that was created.
-     */
-
-
-    var _proto = MouseTimeDisplay.prototype;
-
-    _proto.createEl = function createEl() {
-      return _Component.prototype.createEl.call(this, 'div', {
-        className: 'vjs-mouse-display'
-      });
-    }
-    /**
-     * Enqueues updates to its own DOM as well as the DOM of its
-     * {@link TimeTooltip} child.
-     *
-     * @param {Object} seekBarRect
-     *        The `ClientRect` for the {@link SeekBar} element.
-     *
-     * @param {number} seekBarPoint
-     *        A number from 0 to 1, representing a horizontal reference point
-     *        from the left edge of the {@link SeekBar}
-     */
-    ;
-
-    _proto.update = function update(seekBarRect, seekBarPoint) {
-      var _this2 = this;
-
-      var time = seekBarPoint * this.player_.duration();
-      this.getChild('timeTooltip').updateTime(seekBarRect, seekBarPoint, time, function () {
-        _this2.el_.style.left = seekBarRect.width * seekBarPoint + "px";
-      });
-    };
-
-    return MouseTimeDisplay;
-  }(Component$1);
-  /**
-   * Default options for `MouseTimeDisplay`
-   *
-   * @type {Object}
-   * @private
-   */
-
-
-  MouseTimeDisplay.prototype.options_ = {
-    children: ['timeTooltip']
-  };
-  Component$1.registerComponent('MouseTimeDisplay', MouseTimeDisplay);
-
-  var STEP_SECONDS = 5; // The multiplier of STEP_SECONDS that PgUp/PgDown move the timeline.
-
-  var PAGE_KEY_MULTIPLIER = 12;
-  /**
-   * Seek bar and container for the progress bars. Uses {@link PlayProgressBar}
-   * as its `bar`.
-   *
-   * @extends Slider
-   */
-
-  var SeekBar = /*#__PURE__*/function (_Slider) {
-    inheritsLoose(SeekBar, _Slider);
-
-    /**
-     * Creates an instance of this class.
-     *
-     * @param {Player} player
-     *        The `Player` that this class should be attached to.
-     *
-     * @param {Object} [options]
-     *        The key/value store of player options.
-     */
-    function SeekBar(player, options) {
-      var _this;
-
-      _this = _Slider.call(this, player, options) || this;
-
-      _this.setEventHandlers_();
-
-      return _this;
-    }
-    /**
-     * Sets the event handlers
-     *
-     * @private
-     */
-
-
-    var _proto = SeekBar.prototype;
-
-    _proto.setEventHandlers_ = function setEventHandlers_() {
-      var _this2 = this;
-
-      this.update_ = bind(this, this.update);
-      this.update = throttle(this.update_, UPDATE_REFRESH_INTERVAL);
-      this.on(this.player_, ['ended', 'durationchange', 'timeupdate'], this.update);
-
-      if (this.player_.liveTracker) {
-        this.on(this.player_.liveTracker, 'liveedgechange', this.update);
-      } // when playing, let's ensure we smoothly update the play progress bar
-      // via an interval
-
-
-      this.updateInterval = null;
-
-      this.enableIntervalHandler_ = function (e) {
-        return _this2.enableInterval_(e);
-      };
-
-      this.disableIntervalHandler_ = function (e) {
-        return _this2.disableInterval_(e);
-      };
-
-      this.on(this.player_, ['playing'], this.enableIntervalHandler_);
-      this.on(this.player_, ['ended', 'pause', 'waiting'], this.disableIntervalHandler_); // we don't need to update the play progress if the document is hidden,
-      // also, this causes the CPU to spike and eventually crash the page on IE11.
-
-      if ('hidden' in document && 'visibilityState' in document) {
-        this.on(document, 'visibilitychange', this.toggleVisibility_);
-      }
-    };
-
-    _proto.toggleVisibility_ = function toggleVisibility_(e) {
-      if (document.visibilityState === 'hidden') {
-        this.cancelNamedAnimationFrame('SeekBar#update');
-        this.cancelNamedAnimationFrame('Slider#update');
-        this.disableInterval_(e);
-      } else {
-        if (!this.player_.ended() && !this.player_.paused()) {
-          this.enableInterval_();
-        } // we just switched back to the page and someone may be looking, so, update ASAP
-
-
-        this.update();
-      }
-    };
-
-    _proto.enableInterval_ = function enableInterval_() {
-      if (this.updateInterval) {
-        return;
-      }
-
-      this.updateInterval = this.setInterval(this.update, UPDATE_REFRESH_INTERVAL);
-    };
-
-    _proto.disableInterval_ = function disableInterval_(e) {
-      if (this.player_.liveTracker && this.player_.liveTracker.isLive() && e && e.type !== 'ended') {
-        return;
-      }
-
-      if (!this.updateInterval) {
-        return;
-      }
-
-      this.clearInterval(this.updateInterval);
-      this.updateInterval = null;
-    }
-    /**
-     * Create the `Component`'s DOM element
-     *
-     * @return {Element}
-     *         The element that was created.
-     */
-    ;
-
-    _proto.createEl = function createEl() {
-      return _Slider.prototype.createEl.call(this, 'div', {
-        className: 'vjs-progress-holder'
-      }, {
-        'aria-label': this.localize('Progress Bar')
-      });
-    }
-    /**
-     * This function updates the play progress bar and accessibility
-     * attributes to whatever is passed in.
-     *
-     * @param {EventTarget~Event} [event]
-     *        The `timeupdate` or `ended` event that caused this to run.
-     *
-     * @listens Player#timeupdate
-     *
-     * @return {number}
-     *          The current percent at a number from 0-1
-     */
-    ;
-
-    _proto.update = function update(event) {
-      var _this3 = this;
-
-      // ignore updates while the tab is hidden
-      if (document.visibilityState === 'hidden') {
-        return;
-      }
-
-      var percent = _Slider.prototype.update.call(this);
-
-      this.requestNamedAnimationFrame('SeekBar#update', function () {
-        var currentTime = _this3.player_.ended() ? _this3.player_.duration() : _this3.getCurrentTime_();
-        var liveTracker = _this3.player_.liveTracker;
-
-        var duration = _this3.player_.duration();
-
-        if (liveTracker && liveTracker.isLive()) {
-          duration = _this3.player_.liveTracker.liveCurrentTime();
-        }
-
-        if (_this3.percent_ !== percent) {
-          // machine readable value of progress bar (percentage complete)
-          _this3.el_.setAttribute('aria-valuenow', (percent * 100).toFixed(2));
-
-          _this3.percent_ = percent;
-        }
-
-        if (_this3.currentTime_ !== currentTime || _this3.duration_ !== duration) {
-          // human readable value of progress bar (time complete)
-          _this3.el_.setAttribute('aria-valuetext', _this3.localize('progress bar timing: currentTime={1} duration={2}', [formatTime(currentTime, duration), formatTime(duration, duration)], '{1} of {2}'));
-
-          _this3.currentTime_ = currentTime;
-          _this3.duration_ = duration;
-        } // update the progress bar time tooltip with the current time
-
-
-        if (_this3.bar) {
-          _this3.bar.update(getBoundingClientRect(_this3.el()), _this3.getProgress());
-        }
-      });
-      return percent;
-    }
-    /**
-     * Prevent liveThreshold from causing seeks to seem like they
-     * are not happening from a user perspective.
-     *
-     * @param {number} ct
-     *        current time to seek to
-     */
-    ;
-
-    _proto.userSeek_ = function userSeek_(ct) {
-      if (this.player_.liveTracker && this.player_.liveTracker.isLive()) {
-        this.player_.liveTracker.nextSeekedFromUser();
-      }
-
-      this.player_.currentTime(ct);
-    }
-    /**
-     * Get the value of current time but allows for smooth scrubbing,
-     * when player can't keep up.
-     *
-     * @return {number}
-     *         The current time value to display
-     *
-     * @private
-     */
-    ;
-
-    _proto.getCurrentTime_ = function getCurrentTime_() {
-      return this.player_.scrubbing() ? this.player_.getCache().currentTime : this.player_.currentTime();
-    }
-    /**
-     * Get the percentage of media played so far.
-     *
-     * @return {number}
-     *         The percentage of media played so far (0 to 1).
-     */
-    ;
-
-    _proto.getPercent = function getPercent() {
-      var currentTime = this.getCurrentTime_();
-      var percent;
-      var liveTracker = this.player_.liveTracker;
-
-      if (liveTracker && liveTracker.isLive()) {
-        percent = (currentTime - liveTracker.seekableStart()) / liveTracker.liveWindow(); // prevent the percent from changing at the live edge
-
-        if (liveTracker.atLiveEdge()) {
-          percent = 1;
-        }
-      } else {
-        percent = currentTime / this.player_.duration();
-      }
-
-      return percent;
-    }
-    /**
-     * Handle mouse down on seek bar
-     *
-     * @param {EventTarget~Event} event
-     *        The `mousedown` event that caused this to run.
-     *
-     * @listens mousedown
-     */
-    ;
-
-    _proto.handleMouseDown = function handleMouseDown(event) {
-      if (!isSingleLeftClick(event)) {
-        return;
-      } // Stop event propagation to prevent double fire in progress-control.js
-
-
-      event.stopPropagation();
-      this.videoWasPlaying = !this.player_.paused();
-      this.player_.pause();
-
-      _Slider.prototype.handleMouseDown.call(this, event);
-    }
-    /**
-     * Handle mouse move on seek bar
-     *
-     * @param {EventTarget~Event} event
-     *        The `mousemove` event that caused this to run.
-     * @param {boolean} mouseDown this is a flag that should be set to true if `handleMouseMove` is called directly. It allows us to skip things that should not happen if coming from mouse down but should happen on regular mouse move handler. Defaults to false
-     *
-     * @listens mousemove
-     */
-    ;
-
-    _proto.handleMouseMove = function handleMouseMove(event, mouseDown) {
-      if (mouseDown === void 0) {
-        mouseDown = false;
-      }
-
-      if (!isSingleLeftClick(event)) {
-        return;
-      }
-
-      if (!mouseDown && !this.player_.scrubbing()) {
-        this.player_.scrubbing(true);
-      }
-
-      var newTime;
-      var distance = this.calculateDistance(event);
-      var liveTracker = this.player_.liveTracker;
-
-      if (!liveTracker || !liveTracker.isLive()) {
-        newTime = distance * this.player_.duration(); // Don't let video end while scrubbing.
-
-        if (newTime === this.player_.duration()) {
-          newTime = newTime - 0.1;
-        }
-      } else {
-        if (distance >= 0.99) {
-          liveTracker.seekToLiveEdge();
-          return;
-        }
-
-        var seekableStart = liveTracker.seekableStart();
-        var seekableEnd = liveTracker.liveCurrentTime();
-        newTime = seekableStart + distance * liveTracker.liveWindow(); // Don't let video end while scrubbing.
-
-        if (newTime >= seekableEnd) {
-          newTime = seekableEnd;
-        } // Compensate for precision differences so that currentTime is not less
-        // than seekable start
-
-
-        if (newTime <= seekableStart) {
-          newTime = seekableStart + 0.1;
-        } // On android seekableEnd can be Infinity sometimes,
-        // this will cause newTime to be Infinity, which is
-        // not a valid currentTime.
-
-
-        if (newTime === Infinity) {
-          return;
-        }
-      } // Set new time (tell player to seek to new time)
-
-
-      this.userSeek_(newTime);
-    };
-
-    _proto.enable = function enable() {
-      _Slider.prototype.enable.call(this);
-
-      var mouseTimeDisplay = this.getChild('mouseTimeDisplay');
-
-      if (!mouseTimeDisplay) {
-        return;
-      }
-
-      mouseTimeDisplay.show();
-    };
-
-    _proto.disable = function disable() {
-      _Slider.prototype.disable.call(this);
-
-      var mouseTimeDisplay = this.getChild('mouseTimeDisplay');
-
-      if (!mouseTimeDisplay) {
-        return;
-      }
-
-      mouseTimeDisplay.hide();
-    }
-    /**
-     * Handle mouse up on seek bar
-     *
-     * @param {EventTarget~Event} event
-     *        The `mouseup` event that caused this to run.
-     *
-     * @listens mouseup
-     */
-    ;
-
-    _proto.handleMouseUp = function handleMouseUp(event) {
-      _Slider.prototype.handleMouseUp.call(this, event); // Stop event propagation to prevent double fire in progress-control.js
-
-
-      if (event) {
-        event.stopPropagation();
-      }
-
-      this.player_.scrubbing(false);
-      /**
-       * Trigger timeupdate because we're done seeking and the time has changed.
-       * This is particularly useful for if the player is paused to time the time displays.
-       *
-       * @event Tech#timeupdate
-       * @type {EventTarget~Event}
-       */
-
-      this.player_.trigger({
-        type: 'timeupdate',
-        target: this,
-        manuallyTriggered: true
-      });
-
-      if (this.videoWasPlaying) {
-        silencePromise(this.player_.play());
-      } else {
-        // We're done seeking and the time has changed.
-        // If the player is paused, make sure we display the correct time on the seek bar.
-        this.update_();
-      }
-    }
-    /**
-     * Move more quickly fast forward for keyboard-only users
-     */
-    ;
-
-    _proto.stepForward = function stepForward() {
-      this.userSeek_(this.player_.currentTime() + STEP_SECONDS);
-    }
-    /**
-     * Move more quickly rewind for keyboard-only users
-     */
-    ;
-
-    _proto.stepBack = function stepBack() {
-      this.userSeek_(this.player_.currentTime() - STEP_SECONDS);
-    }
-    /**
-     * Toggles the playback state of the player
-     * This gets called when enter or space is used on the seekbar
-     *
-     * @param {EventTarget~Event} event
-     *        The `keydown` event that caused this function to be called
-     *
-     */
-    ;
-
-    _proto.handleAction = function handleAction(event) {
-      if (this.player_.paused()) {
-        this.player_.play();
-      } else {
-        this.player_.pause();
-      }
-    }
-    /**
-     * Called when this SeekBar has focus and a key gets pressed down.
-     * Supports the following keys:
-     *
-     *   Space or Enter key fire a click event
-     *   Home key moves to start of the timeline
-     *   End key moves to end of the timeline
-     *   Digit "0" through "9" keys move to 0%, 10% ... 80%, 90% of the timeline
-     *   PageDown key moves back a larger step than ArrowDown
-     *   PageUp key moves forward a large step
-     *
-     * @param {EventTarget~Event} event
-     *        The `keydown` event that caused this function to be called.
-     *
-     * @listens keydown
-     */
-    ;
-
-    _proto.handleKeyDown = function handleKeyDown(event) {
-      var liveTracker = this.player_.liveTracker;
-
-      if (keycode.isEventKey(event, 'Space') || keycode.isEventKey(event, 'Enter')) {
-        event.preventDefault();
-        event.stopPropagation();
-        this.handleAction(event);
-      } else if (keycode.isEventKey(event, 'Home')) {
-        event.preventDefault();
-        event.stopPropagation();
-        this.userSeek_(0);
-      } else if (keycode.isEventKey(event, 'End')) {
-        event.preventDefault();
-        event.stopPropagation();
-
-        if (liveTracker && liveTracker.isLive()) {
-          this.userSeek_(liveTracker.liveCurrentTime());
-        } else {
-          this.userSeek_(this.player_.duration());
-        }
-      } else if (/^[0-9]$/.test(keycode(event))) {
-        event.preventDefault();
-        event.stopPropagation();
-        var gotoFraction = (keycode.codes[keycode(event)] - keycode.codes['0']) * 10.0 / 100.0;
-
-        if (liveTracker && liveTracker.isLive()) {
-          this.userSeek_(liveTracker.seekableStart() + liveTracker.liveWindow() * gotoFraction);
-        } else {
-          this.userSeek_(this.player_.duration() * gotoFraction);
-        }
-      } else if (keycode.isEventKey(event, 'PgDn')) {
-        event.preventDefault();
-        event.stopPropagation();
-        this.userSeek_(this.player_.currentTime() - STEP_SECONDS * PAGE_KEY_MULTIPLIER);
-      } else if (keycode.isEventKey(event, 'PgUp')) {
-        event.preventDefault();
-        event.stopPropagation();
-        this.userSeek_(this.player_.currentTime() + STEP_SECONDS * PAGE_KEY_MULTIPLIER);
-      } else {
-        // Pass keydown handling up for unsupported keys
-        _Slider.prototype.handleKeyDown.call(this, event);
-      }
-    };
-
-    _proto.dispose = function dispose() {
-      this.disableInterval_();
-      this.off(this.player_, ['ended', 'durationchange', 'timeupdate'], this.update);
-
-      if (this.player_.liveTracker) {
-        this.off(this.player_.liveTracker, 'liveedgechange', this.update);
-      }
-
-      this.off(this.player_, ['playing'], this.enableIntervalHandler_);
-      this.off(this.player_, ['ended', 'pause', 'waiting'], this.disableIntervalHandler_); // we don't need to update the play progress if the document is hidden,
-      // also, this causes the CPU to spike and eventually crash the page on IE11.
-
-      if ('hidden' in document && 'visibilityState' in document) {
-        this.off(document, 'visibilitychange', this.toggleVisibility_);
-      }
-
-      _Slider.prototype.dispose.call(this);
-    };
-
-    return SeekBar;
-  }(Slider);
-  /**
-   * Default options for the `SeekBar`
-   *
-   * @type {Object}
-   * @private
-   */
-
-
-  SeekBar.prototype.options_ = {
-    children: ['loadProgressBar', 'playProgressBar'],
-    barName: 'playProgressBar'
-  }; // MouseTimeDisplay tooltips should not be added to a player on mobile devices
-
-  if (!IS_IOS && !IS_ANDROID) {
-    SeekBar.prototype.options_.children.splice(1, 0, 'mouseTimeDisplay');
-  }
-
-  Component$1.registerComponent('SeekBar', SeekBar);
-
-  /**
-   * The Progress Control component contains the seek bar, load progress,
-   * and play progress.
-   *
-   * @extends Component
-   */
-
-  var ProgressControl = /*#__PURE__*/function (_Component) {
-    inheritsLoose(ProgressControl, _Component);
-
-    /**
-     * Creates an instance of this class.
-     *
-     * @param {Player} player
-     *        The `Player` that this class should be attached to.
-     *
-     * @param {Object} [options]
-     *        The key/value store of player options.
-     */
-    function ProgressControl(player, options) {
-      var _this;
-
-      _this = _Component.call(this, player, options) || this;
-      _this.handleMouseMove = throttle(bind(assertThisInitialized(_this), _this.handleMouseMove), UPDATE_REFRESH_INTERVAL);
-      _this.throttledHandleMouseSeek = throttle(bind(assertThisInitialized(_this), _this.handleMouseSeek), UPDATE_REFRESH_INTERVAL);
-
-      _this.handleMouseUpHandler_ = function (e) {
-        return _this.handleMouseUp(e);
-      };
-
-      _this.handleMouseDownHandler_ = function (e) {
-        return _this.handleMouseDown(e);
-      };
-
-      _this.enable();
-
-      return _this;
-    }
-    /**
-     * Create the `Component`'s DOM element
-     *
-     * @return {Element}
-     *         The element that was created.
-     */
-
-
-    var _proto = ProgressControl.prototype;
-
-    _proto.createEl = function createEl() {
-      return _Component.prototype.createEl.call(this, 'div', {
-        className: 'vjs-progress-control vjs-control'
-      });
-    }
-    /**
-     * When the mouse moves over the `ProgressControl`, the pointer position
-     * gets passed down to the `MouseTimeDisplay` component.
-     *
-     * @param {EventTarget~Event} event
-     *        The `mousemove` event that caused this function to run.
-     *
-     * @listen mousemove
-     */
-    ;
-
-    _proto.handleMouseMove = function handleMouseMove(event) {
-      var seekBar = this.getChild('seekBar');
-
-      if (!seekBar) {
-        return;
-      }
-
-      var playProgressBar = seekBar.getChild('playProgressBar');
-      var mouseTimeDisplay = seekBar.getChild('mouseTimeDisplay');
-
-      if (!playProgressBar && !mouseTimeDisplay) {
-        return;
-      }
-
-      var seekBarEl = seekBar.el();
-      var seekBarRect = findPosition(seekBarEl);
-      var seekBarPoint = getPointerPosition(seekBarEl, event).x; // The default skin has a gap on either side of the `SeekBar`. This means
-      // that it's possible to trigger this behavior outside the boundaries of
-      // the `SeekBar`. This ensures we stay within it at all times.
-
-      seekBarPoint = clamp(seekBarPoint, 0, 1);
-
-      if (mouseTimeDisplay) {
-        mouseTimeDisplay.update(seekBarRect, seekBarPoint);
-      }
-
-      if (playProgressBar) {
-        playProgressBar.update(seekBarRect, seekBar.getProgress());
-      }
-    }
-    /**
-     * A throttled version of the {@link ProgressControl#handleMouseSeek} listener.
-     *
-     * @method ProgressControl#throttledHandleMouseSeek
-     * @param {EventTarget~Event} event
-     *        The `mousemove` event that caused this function to run.
-     *
-     * @listen mousemove
-     * @listen touchmove
-     */
-
-    /**
-     * Handle `mousemove` or `touchmove` events on the `ProgressControl`.
-     *
-     * @param {EventTarget~Event} event
-     *        `mousedown` or `touchstart` event that triggered this function
-     *
-     * @listens mousemove
-     * @listens touchmove
-     */
-    ;
-
-    _proto.handleMouseSeek = function handleMouseSeek(event) {
-      var seekBar = this.getChild('seekBar');
-
-      if (seekBar) {
-        seekBar.handleMouseMove(event);
-      }
-    }
-    /**
-     * Are controls are currently enabled for this progress control.
-     *
-     * @return {boolean}
-     *         true if controls are enabled, false otherwise
-     */
-    ;
-
-    _proto.enabled = function enabled() {
-      return this.enabled_;
-    }
-    /**
-     * Disable all controls on the progress control and its children
-     */
-    ;
-
-    _proto.disable = function disable() {
-      this.children().forEach(function (child) {
-        return child.disable && child.disable();
-      });
-
-      if (!this.enabled()) {
-        return;
-      }
-
-      this.off(['mousedown', 'touchstart'], this.handleMouseDownHandler_);
-      this.off(this.el_, 'mousemove', this.handleMouseMove);
-      this.removeListenersAddedOnMousedownAndTouchstart();
-      this.addClass('disabled');
-      this.enabled_ = false; // Restore normal playback state if controls are disabled while scrubbing
-
-      if (this.player_.scrubbing()) {
-        var seekBar = this.getChild('seekBar');
-        this.player_.scrubbing(false);
-
-        if (seekBar.videoWasPlaying) {
-          silencePromise(this.player_.play());
-        }
-      }
-    }
-    /**
-     * Enable all controls on the progress control and its children
-     */
-    ;
-
-    _proto.enable = function enable() {
-      this.children().forEach(function (child) {
-        return child.enable && child.enable();
-      });
-
-      if (this.enabled()) {
-        return;
-      }
-
-      this.on(['mousedown', 'touchstart'], this.handleMouseDownHandler_);
-      this.on(this.el_, 'mousemove', this.handleMouseMove);
-      this.removeClass('disabled');
-      this.enabled_ = true;
-    }
-    /**
-     * Cleanup listeners after the user finishes interacting with the progress controls
-     */
-    ;
-
-    _proto.removeListenersAddedOnMousedownAndTouchstart = function removeListenersAddedOnMousedownAndTouchstart() {
-      var doc = this.el_.ownerDocument;
-      this.off(doc, 'mousemove', this.throttledHandleMouseSeek);
-      this.off(doc, 'touchmove', this.throttledHandleMouseSeek);
-      this.off(doc, 'mouseup', this.handleMouseUpHandler_);
-      this.off(doc, 'touchend', this.handleMouseUpHandler_);
-    }
-    /**
-     * Handle `mousedown` or `touchstart` events on the `ProgressControl`.
-     *
-     * @param {EventTarget~Event} event
-     *        `mousedown` or `touchstart` event that triggered this function
-     *
-     * @listens mousedown
-     * @listens touchstart
-     */
-    ;
-
-    _proto.handleMouseDown = function handleMouseDown(event) {
-      var doc = this.el_.ownerDocument;
-      var seekBar = this.getChild('seekBar');
-
-      if (seekBar) {
-        seekBar.handleMouseDown(event);
-      }
-
-      this.on(doc, 'mousemove', this.throttledHandleMouseSeek);
-      this.on(doc, 'touchmove', this.throttledHandleMouseSeek);
-      this.on(doc, 'mouseup', this.handleMouseUpHandler_);
-      this.on(doc, 'touchend', this.handleMouseUpHandler_);
-    }
-    /**
-     * Handle `mouseup` or `touchend` events on the `ProgressControl`.
-     *
-     * @param {EventTarget~Event} event
-     *        `mouseup` or `touchend` event that triggered this function.
-     *
-     * @listens touchend
-     * @listens mouseup
-     */
-    ;
-
-    _proto.handleMouseUp = function handleMouseUp(event) {
-      var seekBar = this.getChild('seekBar');
-
-      if (seekBar) {
-        seekBar.handleMouseUp(event);
-      }
-
-      this.removeListenersAddedOnMousedownAndTouchstart();
-    };
-
-    return ProgressControl;
-  }(Component$1);
-  /**
-   * Default options for `ProgressControl`
-   *
-   * @type {Object}
-   * @private
-   */
-
-
-  ProgressControl.prototype.options_ = {
-    children: ['seekBar']
-  };
-  Component$1.registerComponent('ProgressControl', ProgressControl);
-
-  /**
-   * Toggle Picture-in-Picture mode
-   *
-   * @extends Button
-   */
-
-  var PictureInPictureToggle = /*#__PURE__*/function (_Button) {
-    inheritsLoose(PictureInPictureToggle, _Button);
-
-    /**
-     * Creates an instance of this class.
-     *
-     * @param {Player} player
-     *        The `Player` that this class should be attached to.
-     *
-     * @param {Object} [options]
-     *        The key/value store of player options.
-     *
-     * @listens Player#enterpictureinpicture
-     * @listens Player#leavepictureinpicture
-     */
-    function PictureInPictureToggle(player, options) {
-      var _this;
-
-      _this = _Button.call(this, player, options) || this;
-
-      _this.on(player, ['enterpictureinpicture', 'leavepictureinpicture'], function (e) {
-        return _this.handlePictureInPictureChange(e);
-      });
-
-      _this.on(player, ['disablepictureinpicturechanged', 'loadedmetadata'], function (e) {
-        return _this.handlePictureInPictureEnabledChange(e);
-      });
-
-      _this.on(player, ['loadedmetadata', 'audioonlymodechange', 'audiopostermodechange'], function () {
-        // This audio detection will not detect HLS or DASH audio-only streams because there was no reliable way to detect them at the time
-        var isSourceAudio = player.currentType().substring(0, 5) === 'audio';
-
-        if (isSourceAudio || player.audioPosterMode() || player.audioOnlyMode()) {
-          if (player.isInPictureInPicture()) {
-            player.exitPictureInPicture();
-          }
-
-          _this.hide();
-        } else {
-          _this.show();
-        }
-      }); // TODO: Deactivate button on player emptied event.
-
-
-      _this.disable();
-
-      return _this;
-    }
-    /**
-     * Builds the default DOM `className`.
-     *
-     * @return {string}
-     *         The DOM `className` for this object.
-     */
-
-
-    var _proto = PictureInPictureToggle.prototype;
-
-    _proto.buildCSSClass = function buildCSSClass() {
-      return "vjs-picture-in-picture-control " + _Button.prototype.buildCSSClass.call(this);
-    }
-    /**
-     * Enables or disables button based on document.pictureInPictureEnabled property value
-     * or on value returned by player.disablePictureInPicture() method.
-     */
-    ;
-
-    _proto.handlePictureInPictureEnabledChange = function handlePictureInPictureEnabledChange() {
-      if (document.pictureInPictureEnabled && this.player_.disablePictureInPicture() === false) {
-        this.enable();
-      } else {
-        this.disable();
-      }
-    }
-    /**
-     * Handles enterpictureinpicture and leavepictureinpicture on the player and change control text accordingly.
-     *
-     * @param {EventTarget~Event} [event]
-     *        The {@link Player#enterpictureinpicture} or {@link Player#leavepictureinpicture} event that caused this function to be
-     *        called.
-     *
-     * @listens Player#enterpictureinpicture
-     * @listens Player#leavepictureinpicture
-     */
-    ;
-
-    _proto.handlePictureInPictureChange = function handlePictureInPictureChange(event) {
-      if (this.player_.isInPictureInPicture()) {
-        this.controlText('Exit Picture-in-Picture');
-      } else {
-        this.controlText('Picture-in-Picture');
-      }
-
-      this.handlePictureInPictureEnabledChange();
-    }
-    /**
-     * This gets called when an `PictureInPictureToggle` is "clicked". See
-     * {@link ClickableComponent} for more detailed information on what a click can be.
-     *
-     * @param {EventTarget~Event} [event]
-     *        The `keydown`, `tap`, or `click` event that caused this function to be
-     *        called.
-     *
-     * @listens tap
-     * @listens click
-     */
-    ;
-
-    _proto.handleClick = function handleClick(event) {
-      if (!this.player_.isInPictureInPicture()) {
-        this.player_.requestPictureInPicture();
-      } else {
-        this.player_.exitPictureInPicture();
-      }
-    };
-
-    return PictureInPictureToggle;
-  }(Button);
-  /**
-   * The text that should display over the `PictureInPictureToggle`s controls. Added for localization.
-   *
-   * @type {string}
-   * @private
-   */
-
-
-  PictureInPictureToggle.prototype.controlText_ = 'Picture-in-Picture';
-  Component$1.registerComponent('PictureInPictureToggle', PictureInPictureToggle);
-
-  /**
-   * Toggle fullscreen video
-   *
-   * @extends Button
-   */
-
-  var FullscreenToggle = /*#__PURE__*/function (_Button) {
-    inheritsLoose(FullscreenToggle, _Button);
-
-    /**
-     * Creates an instance of this class.
-     *
-     * @param {Player} player
-     *        The `Player` that this class should be attached to.
-     *
-     * @param {Object} [options]
-     *        The key/value store of player options.
-     */
-    function FullscreenToggle(player, options) {
-      var _this;
-
-      _this = _Button.call(this, player, options) || this;
-
-      _this.on(player, 'fullscreenchange', function (e) {
-        return _this.handleFullscreenChange(e);
-      });
-
-      if (document[player.fsApi_.fullscreenEnabled] === false) {
-        _this.disable();
-      }
-
-      return _this;
-    }
-    /**
-     * Builds the default DOM `className`.
-     *
-     * @return {string}
-     *         The DOM `className` for this object.
-     */
-
-
-    var _proto = FullscreenToggle.prototype;
-
-    _proto.buildCSSClass = function buildCSSClass() {
-      return "vjs-fullscreen-control " + _Button.prototype.buildCSSClass.call(this);
-    }
-    /**
-     * Handles fullscreenchange on the player and change control text accordingly.
-     *
-     * @param {EventTarget~Event} [event]
-     *        The {@link Player#fullscreenchange} event that caused this function to be
-     *        called.
-     *
-     * @listens Player#fullscreenchange
-     */
-    ;
-
-    _proto.handleFullscreenChange = function handleFullscreenChange(event) {
-      if (this.player_.isFullscreen()) {
-        this.controlText('Non-Fullscreen');
-      } else {
-        this.controlText('Fullscreen');
-      }
-    }
-    /**
-     * This gets called when an `FullscreenToggle` is "clicked". See
-     * {@link ClickableComponent} for more detailed information on what a click can be.
-     *
-     * @param {EventTarget~Event} [event]
-     *        The `keydown`, `tap`, or `click` event that caused this function to be
-     *        called.
-     *
-     * @listens tap
-     * @listens click
-     */
-    ;
-
-    _proto.handleClick = function handleClick(event) {
-      if (!this.player_.isFullscreen()) {
-        this.player_.requestFullscreen();
-      } else {
-        this.player_.exitFullscreen();
-      }
-    };
-
-    return FullscreenToggle;
-  }(Button);
-  /**
-   * The text that should display over the `FullscreenToggle`s controls. Added for localization.
-   *
-   * @type {string}
-   * @private
-   */
-
-
-  FullscreenToggle.prototype.controlText_ = 'Fullscreen';
-  Component$1.registerComponent('FullscreenToggle', FullscreenToggle);
-
-  /**
-   * Check if volume control is supported and if it isn't hide the
-   * `Component` that was passed  using the `vjs-hidden` class.
-   *
-   * @param {Component} self
-   *        The component that should be hidden if volume is unsupported
-   *
-   * @param {Player} player
-   *        A reference to the player
-   *
-   * @private
-   */
-  var checkVolumeSupport = function checkVolumeSupport(self, player) {
-    // hide volume controls when they're not supported by the current tech
-    if (player.tech_ && !player.tech_.featuresVolumeControl) {
-      self.addClass('vjs-hidden');
-    }
-
-    self.on(player, 'loadstart', function () {
-      if (!player.tech_.featuresVolumeControl) {
-        self.addClass('vjs-hidden');
-      } else {
-        self.removeClass('vjs-hidden');
-      }
-    });
-  };
-
-  /**
-   * Shows volume level
-   *
-   * @extends Component
-   */
-
-  var VolumeLevel = /*#__PURE__*/function (_Component) {
-    inheritsLoose(VolumeLevel, _Component);
-
-    function VolumeLevel() {
-      return _Component.apply(this, arguments) || this;
-    }
-
-    var _proto = VolumeLevel.prototype;
-
-    /**
-     * Create the `Component`'s DOM element
-     *
-     * @return {Element}
-     *         The element that was created.
-     */
-    _proto.createEl = function createEl() {
-      var el = _Component.prototype.createEl.call(this, 'div', {
-        className: 'vjs-volume-level'
-      });
-
-      el.appendChild(_Component.prototype.createEl.call(this, 'span', {
-        className: 'vjs-control-text'
-      }));
-      return el;
-    };
-
-    return VolumeLevel;
-  }(Component$1);
-
-  Component$1.registerComponent('VolumeLevel', VolumeLevel);
-
-  /**
-   * Volume level tooltips display a volume above or side by side the volume bar.
-   *
-   * @extends Component
-   */
-
-  var VolumeLevelTooltip = /*#__PURE__*/function (_Component) {
-    inheritsLoose(VolumeLevelTooltip, _Component);
-
-    /**
-     * Creates an instance of this class.
-     *
-     * @param {Player} player
-     *        The {@link Player} that this class should be attached to.
-     *
-     * @param {Object} [options]
-     *        The key/value store of player options.
-     */
-    function VolumeLevelTooltip(player, options) {
-      var _this;
-
-      _this = _Component.call(this, player, options) || this;
-      _this.update = throttle(bind(assertThisInitialized(_this), _this.update), UPDATE_REFRESH_INTERVAL);
-      return _this;
-    }
-    /**
-     * Create the volume tooltip DOM element
-     *
-     * @return {Element}
-     *         The element that was created.
-     */
-
-
-    var _proto = VolumeLevelTooltip.prototype;
-
-    _proto.createEl = function createEl() {
-      return _Component.prototype.createEl.call(this, 'div', {
-        className: 'vjs-volume-tooltip'
-      }, {
-        'aria-hidden': 'true'
-      });
-    }
-    /**
-     * Updates the position of the tooltip relative to the `VolumeBar` and
-     * its content text.
-     *
-     * @param {Object} rangeBarRect
-     *        The `ClientRect` for the {@link VolumeBar} element.
-     *
-     * @param {number} rangeBarPoint
-     *        A number from 0 to 1, representing a horizontal/vertical reference point
-     *        from the left edge of the {@link VolumeBar}
-     *
-     * @param {boolean} vertical
-     *        Referees to the Volume control position
-     *        in the control bar{@link VolumeControl}
-     *
-     */
-    ;
-
-    _proto.update = function update(rangeBarRect, rangeBarPoint, vertical, content) {
-      if (!vertical) {
-        var tooltipRect = getBoundingClientRect(this.el_);
-        var playerRect = getBoundingClientRect(this.player_.el());
-        var volumeBarPointPx = rangeBarRect.width * rangeBarPoint;
-
-        if (!playerRect || !tooltipRect) {
-          return;
-        }
-
-        var spaceLeftOfPoint = rangeBarRect.left - playerRect.left + volumeBarPointPx;
-        var spaceRightOfPoint = rangeBarRect.width - volumeBarPointPx + (playerRect.right - rangeBarRect.right);
-        var pullTooltipBy = tooltipRect.width / 2;
-
-        if (spaceLeftOfPoint < pullTooltipBy) {
-          pullTooltipBy += pullTooltipBy - spaceLeftOfPoint;
-        } else if (spaceRightOfPoint < pullTooltipBy) {
-          pullTooltipBy = spaceRightOfPoint;
-        }
-
-        if (pullTooltipBy < 0) {
-          pullTooltipBy = 0;
-        } else if (pullTooltipBy > tooltipRect.width) {
-          pullTooltipBy = tooltipRect.width;
-        }
-
-        this.el_.style.right = "-" + pullTooltipBy + "px";
-      }
-
-      this.write(content + "%");
-    }
-    /**
-     * Write the volume to the tooltip DOM element.
-     *
-     * @param {string} content
-     *        The formatted volume for the tooltip.
-     */
-    ;
-
-    _proto.write = function write(content) {
-      textContent(this.el_, content);
-    }
-    /**
-     * Updates the position of the volume tooltip relative to the `VolumeBar`.
-     *
-     * @param {Object} rangeBarRect
-     *        The `ClientRect` for the {@link VolumeBar} element.
-     *
-     * @param {number} rangeBarPoint
-     *        A number from 0 to 1, representing a horizontal/vertical reference point
-     *        from the left edge of the {@link VolumeBar}
-     *
-     * @param {boolean} vertical
-     *        Referees to the Volume control position
-     *        in the control bar{@link VolumeControl}
-     *
-     * @param {number} volume
-     *        The volume level to update the tooltip to
-     *
-     * @param {Function} cb
-     *        A function that will be called during the request animation frame
-     *        for tooltips that need to do additional animations from the default
-     */
-    ;
-
-    _proto.updateVolume = function updateVolume(rangeBarRect, rangeBarPoint, vertical, volume, cb) {
-      var _this2 = this;
-
-      this.requestNamedAnimationFrame('VolumeLevelTooltip#updateVolume', function () {
-        _this2.update(rangeBarRect, rangeBarPoint, vertical, volume.toFixed(0));
-
-        if (cb) {
-          cb();
-        }
-      });
-    };
-
-    return VolumeLevelTooltip;
-  }(Component$1);
-
-  Component$1.registerComponent('VolumeLevelTooltip', VolumeLevelTooltip);
-
-  /**
-   * The {@link MouseVolumeLevelDisplay} component tracks mouse movement over the
-   * {@link VolumeControl}. It displays an indicator and a {@link VolumeLevelTooltip}
-   * indicating the volume level which is represented by a given point in the
-   * {@link VolumeBar}.
-   *
-   * @extends Component
-   */
-
-  var MouseVolumeLevelDisplay = /*#__PURE__*/function (_Component) {
-    inheritsLoose(MouseVolumeLevelDisplay, _Component);
-
-    /**
-     * Creates an instance of this class.
-     *
-     * @param {Player} player
-     *        The {@link Player} that this class should be attached to.
-     *
-     * @param {Object} [options]
-     *        The key/value store of player options.
-     */
-    function MouseVolumeLevelDisplay(player, options) {
-      var _this;
-
-      _this = _Component.call(this, player, options) || this;
-      _this.update = throttle(bind(assertThisInitialized(_this), _this.update), UPDATE_REFRESH_INTERVAL);
-      return _this;
-    }
-    /**
-     * Create the DOM element for this class.
-     *
-     * @return {Element}
-     *         The element that was created.
-     */
-
-
-    var _proto = MouseVolumeLevelDisplay.prototype;
-
-    _proto.createEl = function createEl() {
-      return _Component.prototype.createEl.call(this, 'div', {
-        className: 'vjs-mouse-display'
-      });
-    }
-    /**
-     * Enquires updates to its own DOM as well as the DOM of its
-     * {@link VolumeLevelTooltip} child.
-     *
-     * @param {Object} rangeBarRect
-     *        The `ClientRect` for the {@link VolumeBar} element.
-     *
-     * @param {number} rangeBarPoint
-     *        A number from 0 to 1, representing a horizontal/vertical reference point
-     *        from the left edge of the {@link VolumeBar}
-     *
-     * @param {boolean} vertical
-     *        Referees to the Volume control position
-     *        in the control bar{@link VolumeControl}
-     *
-     */
-    ;
-
-    _proto.update = function update(rangeBarRect, rangeBarPoint, vertical) {
-      var _this2 = this;
-
-      var volume = 100 * rangeBarPoint;
-      this.getChild('volumeLevelTooltip').updateVolume(rangeBarRect, rangeBarPoint, vertical, volume, function () {
-        if (vertical) {
-          _this2.el_.style.bottom = rangeBarRect.height * rangeBarPoint + "px";
-        } else {
-          _this2.el_.style.left = rangeBarRect.width * rangeBarPoint + "px";
-        }
-      });
-    };
-
-    return MouseVolumeLevelDisplay;
-  }(Component$1);
-  /**
-   * Default options for `MouseVolumeLevelDisplay`
-   *
-   * @type {Object}
-   * @private
-   */
-
-
-  MouseVolumeLevelDisplay.prototype.options_ = {
-    children: ['volumeLevelTooltip']
-  };
-  Component$1.registerComponent('MouseVolumeLevelDisplay', MouseVolumeLevelDisplay);
-
-  /**
-   * The bar that contains the volume level and can be clicked on to adjust the level
-   *
-   * @extends Slider
-   */
-
-  var VolumeBar = /*#__PURE__*/function (_Slider) {
-    inheritsLoose(VolumeBar, _Slider);
-
-    /**
-     * Creates an instance of this class.
-     *
-     * @param {Player} player
-     *        The `Player` that this class should be attached to.
-     *
-     * @param {Object} [options]
-     *        The key/value store of player options.
-     */
-    function VolumeBar(player, options) {
-      var _this;
-
-      _this = _Slider.call(this, player, options) || this;
-
-      _this.on('slideractive', function (e) {
-        return _this.updateLastVolume_(e);
-      });
-
-      _this.on(player, 'volumechange', function (e) {
-        return _this.updateARIAAttributes(e);
-      });
-
-      player.ready(function () {
-        return _this.updateARIAAttributes();
-      });
-      return _this;
-    }
-    /**
-     * Create the `Component`'s DOM element
-     *
-     * @return {Element}
-     *         The element that was created.
-     */
-
-
-    var _proto = VolumeBar.prototype;
-
-    _proto.createEl = function createEl() {
-      return _Slider.prototype.createEl.call(this, 'div', {
-        className: 'vjs-volume-bar vjs-slider-bar'
-      }, {
-        'aria-label': this.localize('Volume Level'),
-        'aria-live': 'polite'
-      });
-    }
-    /**
-     * Handle mouse down on volume bar
-     *
-     * @param {EventTarget~Event} event
-     *        The `mousedown` event that caused this to run.
-     *
-     * @listens mousedown
-     */
-    ;
-
-    _proto.handleMouseDown = function handleMouseDown(event) {
-      if (!isSingleLeftClick(event)) {
-        return;
-      }
-
-      _Slider.prototype.handleMouseDown.call(this, event);
-    }
-    /**
-     * Handle movement events on the {@link VolumeMenuButton}.
-     *
-     * @param {EventTarget~Event} event
-     *        The event that caused this function to run.
-     *
-     * @listens mousemove
-     */
-    ;
-
-    _proto.handleMouseMove = function handleMouseMove(event) {
-      var mouseVolumeLevelDisplay = this.getChild('mouseVolumeLevelDisplay');
-
-      if (mouseVolumeLevelDisplay) {
-        var volumeBarEl = this.el();
-        var volumeBarRect = getBoundingClientRect(volumeBarEl);
-        var vertical = this.vertical();
-        var volumeBarPoint = getPointerPosition(volumeBarEl, event);
-        volumeBarPoint = vertical ? volumeBarPoint.y : volumeBarPoint.x; // The default skin has a gap on either side of the `VolumeBar`. This means
-        // that it's possible to trigger this behavior outside the boundaries of
-        // the `VolumeBar`. This ensures we stay within it at all times.
-
-        volumeBarPoint = clamp(volumeBarPoint, 0, 1);
-        mouseVolumeLevelDisplay.update(volumeBarRect, volumeBarPoint, vertical);
-      }
-
-      if (!isSingleLeftClick(event)) {
-        return;
-      }
-
-      this.checkMuted();
-      this.player_.volume(this.calculateDistance(event));
-    }
-    /**
-     * If the player is muted unmute it.
-     */
-    ;
-
-    _proto.checkMuted = function checkMuted() {
-      if (this.player_.muted()) {
-        this.player_.muted(false);
-      }
-    }
-    /**
-     * Get percent of volume level
-     *
-     * @return {number}
-     *         Volume level percent as a decimal number.
-     */
-    ;
-
-    _proto.getPercent = function getPercent() {
-      if (this.player_.muted()) {
-        return 0;
-      }
-
-      return this.player_.volume();
-    }
-    /**
-     * Increase volume level for keyboard users
-     */
-    ;
-
-    _proto.stepForward = function stepForward() {
-      this.checkMuted();
-      this.player_.volume(this.player_.volume() + 0.1);
-    }
-    /**
-     * Decrease volume level for keyboard users
-     */
-    ;
-
-    _proto.stepBack = function stepBack() {
-      this.checkMuted();
-      this.player_.volume(this.player_.volume() - 0.1);
-    }
-    /**
-     * Update ARIA accessibility attributes
-     *
-     * @param {EventTarget~Event} [event]
-     *        The `volumechange` event that caused this function to run.
-     *
-     * @listens Player#volumechange
-     */
-    ;
-
-    _proto.updateARIAAttributes = function updateARIAAttributes(event) {
-      var ariaValue = this.player_.muted() ? 0 : this.volumeAsPercentage_();
-      this.el_.setAttribute('aria-valuenow', ariaValue);
-      this.el_.setAttribute('aria-valuetext', ariaValue + '%');
-    }
-    /**
-     * Returns the current value of the player volume as a percentage
-     *
-     * @private
-     */
-    ;
-
-    _proto.volumeAsPercentage_ = function volumeAsPercentage_() {
-      return Math.round(this.player_.volume() * 100);
-    }
-    /**
-     * When user starts dragging the VolumeBar, store the volume and listen for
-     * the end of the drag. When the drag ends, if the volume was set to zero,
-     * set lastVolume to the stored volume.
-     *
-     * @listens slideractive
-     * @private
-     */
-    ;
-
-    _proto.updateLastVolume_ = function updateLastVolume_() {
-      var _this2 = this;
-
-      var volumeBeforeDrag = this.player_.volume();
-      this.one('sliderinactive', function () {
-        if (_this2.player_.volume() === 0) {
-          _this2.player_.lastVolume_(volumeBeforeDrag);
-        }
-      });
-    };
-
-    return VolumeBar;
-  }(Slider);
-  /**
-   * Default options for the `VolumeBar`
-   *
-   * @type {Object}
-   * @private
-   */
-
-
-  VolumeBar.prototype.options_ = {
-    children: ['volumeLevel'],
-    barName: 'volumeLevel'
-  }; // MouseVolumeLevelDisplay tooltip should not be added to a player on mobile devices
-
-  if (!IS_IOS && !IS_ANDROID) {
-    VolumeBar.prototype.options_.children.splice(0, 0, 'mouseVolumeLevelDisplay');
-  }
-  /**
-   * Call the update event for this Slider when this event happens on the player.
-   *
-   * @type {string}
-   */
-
-
-  VolumeBar.prototype.playerEvent = 'volumechange';
-  Component$1.registerComponent('VolumeBar', VolumeBar);
-
-  /**
-   * The component for controlling the volume level
-   *
-   * @extends Component
-   */
-
-  var VolumeControl = /*#__PURE__*/function (_Component) {
-    inheritsLoose(VolumeControl, _Component);
-
-    /**
-     * Creates an instance of this class.
-     *
-     * @param {Player} player
-     *        The `Player` that this class should be attached to.
-     *
-     * @param {Object} [options={}]
-     *        The key/value store of player options.
-     */
-    function VolumeControl(player, options) {
-      var _this;
-
-      if (options === void 0) {
-        options = {};
-      }
-
-      options.vertical = options.vertical || false; // Pass the vertical option down to the VolumeBar if
-      // the VolumeBar is turned on.
-
-      if (typeof options.volumeBar === 'undefined' || isPlain(options.volumeBar)) {
-        options.volumeBar = options.volumeBar || {};
-        options.volumeBar.vertical = options.vertical;
-      }
-
-      _this = _Component.call(this, player, options) || this; // hide this control if volume support is missing
-
-      checkVolumeSupport(assertThisInitialized(_this), player);
-      _this.throttledHandleMouseMove = throttle(bind(assertThisInitialized(_this), _this.handleMouseMove), UPDATE_REFRESH_INTERVAL);
-
-      _this.handleMouseUpHandler_ = function (e) {
-        return _this.handleMouseUp(e);
-      };
-
-      _this.on('mousedown', function (e) {
-        return _this.handleMouseDown(e);
-      });
-
-      _this.on('touchstart', function (e) {
-        return _this.handleMouseDown(e);
-      });
-
-      _this.on('mousemove', function (e) {
-        return _this.handleMouseMove(e);
-      }); // while the slider is active (the mouse has been pressed down and
-      // is dragging) or in focus we do not want to hide the VolumeBar
-
-
-      _this.on(_this.volumeBar, ['focus', 'slideractive'], function () {
-        _this.volumeBar.addClass('vjs-slider-active');
-
-        _this.addClass('vjs-slider-active');
-
-        _this.trigger('slideractive');
-      });
-
-      _this.on(_this.volumeBar, ['blur', 'sliderinactive'], function () {
-        _this.volumeBar.removeClass('vjs-slider-active');
-
-        _this.removeClass('vjs-slider-active');
-
-        _this.trigger('sliderinactive');
-      });
-
-      return _this;
-    }
-    /**
-     * Create the `Component`'s DOM element
-     *
-     * @return {Element}
-     *         The element that was created.
-     */
-
-
-    var _proto = VolumeControl.prototype;
-
-    _proto.createEl = function createEl() {
-      var orientationClass = 'vjs-volume-horizontal';
-
-      if (this.options_.vertical) {
-        orientationClass = 'vjs-volume-vertical';
-      }
-
-      return _Component.prototype.createEl.call(this, 'div', {
-        className: "vjs-volume-control vjs-control " + orientationClass
-      });
-    }
-    /**
-     * Handle `mousedown` or `touchstart` events on the `VolumeControl`.
-     *
-     * @param {EventTarget~Event} event
-     *        `mousedown` or `touchstart` event that triggered this function
-     *
-     * @listens mousedown
-     * @listens touchstart
-     */
-    ;
-
-    _proto.handleMouseDown = function handleMouseDown(event) {
-      var doc = this.el_.ownerDocument;
-      this.on(doc, 'mousemove', this.throttledHandleMouseMove);
-      this.on(doc, 'touchmove', this.throttledHandleMouseMove);
-      this.on(doc, 'mouseup', this.handleMouseUpHandler_);
-      this.on(doc, 'touchend', this.handleMouseUpHandler_);
-    }
-    /**
-     * Handle `mouseup` or `touchend` events on the `VolumeControl`.
-     *
-     * @param {EventTarget~Event} event
-     *        `mouseup` or `touchend` event that triggered this function.
-     *
-     * @listens touchend
-     * @listens mouseup
-     */
-    ;
-
-    _proto.handleMouseUp = function handleMouseUp(event) {
-      var doc = this.el_.ownerDocument;
-      this.off(doc, 'mousemove', this.throttledHandleMouseMove);
-      this.off(doc, 'touchmove', this.throttledHandleMouseMove);
-      this.off(doc, 'mouseup', this.handleMouseUpHandler_);
-      this.off(doc, 'touchend', this.handleMouseUpHandler_);
-    }
-    /**
-     * Handle `mousedown` or `touchstart` events on the `VolumeControl`.
-     *
-     * @param {EventTarget~Event} event
-     *        `mousedown` or `touchstart` event that triggered this function
-     *
-     * @listens mousedown
-     * @listens touchstart
-     */
-    ;
-
-    _proto.handleMouseMove = function handleMouseMove(event) {
-      this.volumeBar.handleMouseMove(event);
-    };
-
-    return VolumeControl;
-  }(Component$1);
-  /**
-   * Default options for the `VolumeControl`
-   *
-   * @type {Object}
-   * @private
-   */
-
-
-  VolumeControl.prototype.options_ = {
-    children: ['volumeBar']
-  };
-  Component$1.registerComponent('VolumeControl', VolumeControl);
-
-  /**
-   * Check if muting volume is supported and if it isn't hide the mute toggle
-   * button.
-   *
-   * @param {Component} self
-   *        A reference to the mute toggle button
-   *
-   * @param {Player} player
-   *        A reference to the player
-   *
-   * @private
-   */
-  var checkMuteSupport = function checkMuteSupport(self, player) {
-    // hide mute toggle button if it's not supported by the current tech
-    if (player.tech_ && !player.tech_.featuresMuteControl) {
-      self.addClass('vjs-hidden');
-    }
-
-    self.on(player, 'loadstart', function () {
-      if (!player.tech_.featuresMuteControl) {
-        self.addClass('vjs-hidden');
-      } else {
-        self.removeClass('vjs-hidden');
-      }
-    });
-  };
-
-  /**
-   * A button component for muting the audio.
-   *
-   * @extends Button
-   */
-
-  var MuteToggle = /*#__PURE__*/function (_Button) {
-    inheritsLoose(MuteToggle, _Button);
-
-    /**
-     * Creates an instance of this class.
-     *
-     * @param {Player} player
-     *        The `Player` that this class should be attached to.
-     *
-     * @param {Object} [options]
-     *        The key/value store of player options.
-     */
-    function MuteToggle(player, options) {
-      var _this;
-
-      _this = _Button.call(this, player, options) || this; // hide this control if volume support is missing
-
-      checkMuteSupport(assertThisInitialized(_this), player);
-
-      _this.on(player, ['loadstart', 'volumechange'], function (e) {
-        return _this.update(e);
-      });
-
-      return _this;
-    }
-    /**
-     * Builds the default DOM `className`.
-     *
-     * @return {string}
-     *         The DOM `className` for this object.
-     */
-
-
-    var _proto = MuteToggle.prototype;
-
-    _proto.buildCSSClass = function buildCSSClass() {
-      return "vjs-mute-control " + _Button.prototype.buildCSSClass.call(this);
-    }
-    /**
-     * This gets called when an `MuteToggle` is "clicked". See
-     * {@link ClickableComponent} for more detailed information on what a click can be.
-     *
-     * @param {EventTarget~Event} [event]
-     *        The `keydown`, `tap`, or `click` event that caused this function to be
-     *        called.
-     *
-     * @listens tap
-     * @listens click
-     */
-    ;
-
-    _proto.handleClick = function handleClick(event) {
-      var vol = this.player_.volume();
-      var lastVolume = this.player_.lastVolume_();
-
-      if (vol === 0) {
-        var volumeToSet = lastVolume < 0.1 ? 0.1 : lastVolume;
-        this.player_.volume(volumeToSet);
-        this.player_.muted(false);
-      } else {
-        this.player_.muted(this.player_.muted() ? false : true);
-      }
-    }
-    /**
-     * Update the `MuteToggle` button based on the state of `volume` and `muted`
-     * on the player.
-     *
-     * @param {EventTarget~Event} [event]
-     *        The {@link Player#loadstart} event if this function was called
-     *        through an event.
-     *
-     * @listens Player#loadstart
-     * @listens Player#volumechange
-     */
-    ;
-
-    _proto.update = function update(event) {
-      this.updateIcon_();
-      this.updateControlText_();
-    }
-    /**
-     * Update the appearance of the `MuteToggle` icon.
-     *
-     * Possible states (given `level` variable below):
-     * - 0: crossed out
-     * - 1: zero bars of volume
-     * - 2: one bar of volume
-     * - 3: two bars of volume
-     *
-     * @private
-     */
-    ;
-
-    _proto.updateIcon_ = function updateIcon_() {
-      var vol = this.player_.volume();
-      var level = 3; // in iOS when a player is loaded with muted attribute
-      // and volume is changed with a native mute button
-      // we want to make sure muted state is updated
-
-      if (IS_IOS && this.player_.tech_ && this.player_.tech_.el_) {
-        this.player_.muted(this.player_.tech_.el_.muted);
-      }
-
-      if (vol === 0 || this.player_.muted()) {
-        level = 0;
-      } else if (vol < 0.33) {
-        level = 1;
-      } else if (vol < 0.67) {
-        level = 2;
-      } // TODO improve muted icon classes
-
-
-      for (var i = 0; i < 4; i++) {
-        removeClass(this.el_, "vjs-vol-" + i);
-      }
-
-      addClass(this.el_, "vjs-vol-" + level);
-    }
-    /**
-     * If `muted` has changed on the player, update the control text
-     * (`title` attribute on `vjs-mute-control` element and content of
-     * `vjs-control-text` element).
-     *
-     * @private
-     */
-    ;
-
-    _proto.updateControlText_ = function updateControlText_() {
-      var soundOff = this.player_.muted() || this.player_.volume() === 0;
-      var text = soundOff ? 'Unmute' : 'Mute';
-
-      if (this.controlText() !== text) {
-        this.controlText(text);
-      }
-    };
-
-    return MuteToggle;
-  }(Button);
-  /**
-   * The text that should display over the `MuteToggle`s controls. Added for localization.
-   *
-   * @type {string}
-   * @private
-   */
-
-
-  MuteToggle.prototype.controlText_ = 'Mute';
-  Component$1.registerComponent('MuteToggle', MuteToggle);
-
-  /**
-   * A Component to contain the MuteToggle and VolumeControl so that
-   * they can work together.
-   *
-   * @extends Component
-   */
-
-  var VolumePanel = /*#__PURE__*/function (_Component) {
-    inheritsLoose(VolumePanel, _Component);
-
-    /**
-     * Creates an instance of this class.
-     *
-     * @param {Player} player
-     *        The `Player` that this class should be attached to.
-     *
-     * @param {Object} [options={}]
-     *        The key/value store of player options.
-     */
-    function VolumePanel(player, options) {
-      var _this;
-
-      if (options === void 0) {
-        options = {};
-      }
-
-      if (typeof options.inline !== 'undefined') {
-        options.inline = options.inline;
-      } else {
-        options.inline = true;
-      } // pass the inline option down to the VolumeControl as vertical if
-      // the VolumeControl is on.
-
-
-      if (typeof options.volumeControl === 'undefined' || isPlain(options.volumeControl)) {
-        options.volumeControl = options.volumeControl || {};
-        options.volumeControl.vertical = !options.inline;
-      }
-
-      _this = _Component.call(this, player, options) || this; // this handler is used by mouse handler methods below
-
-      _this.handleKeyPressHandler_ = function (e) {
-        return _this.handleKeyPress(e);
-      };
-
-      _this.on(player, ['loadstart'], function (e) {
-        return _this.volumePanelState_(e);
-      });
-
-      _this.on(_this.muteToggle, 'keyup', function (e) {
-        return _this.handleKeyPress(e);
-      });
-
-      _this.on(_this.volumeControl, 'keyup', function (e) {
-        return _this.handleVolumeControlKeyUp(e);
-      });
-
-      _this.on('keydown', function (e) {
-        return _this.handleKeyPress(e);
-      });
-
-      _this.on('mouseover', function (e) {
-        return _this.handleMouseOver(e);
-      });
-
-      _this.on('mouseout', function (e) {
-        return _this.handleMouseOut(e);
-      }); // while the slider is active (the mouse has been pressed down and
-      // is dragging) we do not want to hide the VolumeBar
-
-
-      _this.on(_this.volumeControl, ['slideractive'], _this.sliderActive_);
-
-      _this.on(_this.volumeControl, ['sliderinactive'], _this.sliderInactive_);
-
-      return _this;
-    }
-    /**
-     * Add vjs-slider-active class to the VolumePanel
-     *
-     * @listens VolumeControl#slideractive
-     * @private
-     */
-
-
-    var _proto = VolumePanel.prototype;
-
-    _proto.sliderActive_ = function sliderActive_() {
-      this.addClass('vjs-slider-active');
-    }
-    /**
-     * Removes vjs-slider-active class to the VolumePanel
-     *
-     * @listens VolumeControl#sliderinactive
-     * @private
-     */
-    ;
-
-    _proto.sliderInactive_ = function sliderInactive_() {
-      this.removeClass('vjs-slider-active');
-    }
-    /**
-     * Adds vjs-hidden or vjs-mute-toggle-only to the VolumePanel
-     * depending on MuteToggle and VolumeControl state
-     *
-     * @listens Player#loadstart
-     * @private
-     */
-    ;
-
-    _proto.volumePanelState_ = function volumePanelState_() {
-      // hide volume panel if neither volume control or mute toggle
-      // are displayed
-      if (this.volumeControl.hasClass('vjs-hidden') && this.muteToggle.hasClass('vjs-hidden')) {
-        this.addClass('vjs-hidden');
-      } // if only mute toggle is visible we don't want
-      // volume panel expanding when hovered or active
-
-
-      if (this.volumeControl.hasClass('vjs-hidden') && !this.muteToggle.hasClass('vjs-hidden')) {
-        this.addClass('vjs-mute-toggle-only');
-      }
-    }
-    /**
-     * Create the `Component`'s DOM element
-     *
-     * @return {Element}
-     *         The element that was created.
-     */
-    ;
-
-    _proto.createEl = function createEl() {
-      var orientationClass = 'vjs-volume-panel-horizontal';
-
-      if (!this.options_.inline) {
-        orientationClass = 'vjs-volume-panel-vertical';
-      }
-
-      return _Component.prototype.createEl.call(this, 'div', {
-        className: "vjs-volume-panel vjs-control " + orientationClass
-      });
-    }
-    /**
-     * Dispose of the `volume-panel` and all child components.
-     */
-    ;
-
-    _proto.dispose = function dispose() {
-      this.handleMouseOut();
-
-      _Component.prototype.dispose.call(this);
-    }
-    /**
-     * Handles `keyup` events on the `VolumeControl`, looking for ESC, which closes
-     * the volume panel and sets focus on `MuteToggle`.
-     *
-     * @param {EventTarget~Event} event
-     *        The `keyup` event that caused this function to be called.
-     *
-     * @listens keyup
-     */
-    ;
-
-    _proto.handleVolumeControlKeyUp = function handleVolumeControlKeyUp(event) {
-      if (keycode.isEventKey(event, 'Esc')) {
-        this.muteToggle.focus();
-      }
-    }
-    /**
-     * This gets called when a `VolumePanel` gains hover via a `mouseover` event.
-     * Turns on listening for `mouseover` event. When they happen it
-     * calls `this.handleMouseOver`.
-     *
-     * @param {EventTarget~Event} event
-     *        The `mouseover` event that caused this function to be called.
-     *
-     * @listens mouseover
-     */
-    ;
-
-    _proto.handleMouseOver = function handleMouseOver(event) {
-      this.addClass('vjs-hover');
-      on(document, 'keyup', this.handleKeyPressHandler_);
-    }
-    /**
-     * This gets called when a `VolumePanel` gains hover via a `mouseout` event.
-     * Turns on listening for `mouseout` event. When they happen it
-     * calls `this.handleMouseOut`.
-     *
-     * @param {EventTarget~Event} event
-     *        The `mouseout` event that caused this function to be called.
-     *
-     * @listens mouseout
-     */
-    ;
-
-    _proto.handleMouseOut = function handleMouseOut(event) {
-      this.removeClass('vjs-hover');
-      off(document, 'keyup', this.handleKeyPressHandler_);
-    }
-    /**
-     * Handles `keyup` event on the document or `keydown` event on the `VolumePanel`,
-     * looking for ESC, which hides the `VolumeControl`.
-     *
-     * @param {EventTarget~Event} event
-     *        The keypress that triggered this event.
-     *
-     * @listens keydown | keyup
-     */
-    ;
-
-    _proto.handleKeyPress = function handleKeyPress(event) {
-      if (keycode.isEventKey(event, 'Esc')) {
-        this.handleMouseOut();
-      }
-    };
-
-    return VolumePanel;
-  }(Component$1);
-  /**
-   * Default options for the `VolumeControl`
-   *
-   * @type {Object}
-   * @private
-   */
-
-
-  VolumePanel.prototype.options_ = {
-    children: ['muteToggle', 'volumeControl']
-  };
-  Component$1.registerComponent('VolumePanel', VolumePanel);
-
-  /**
-   * The Menu component is used to build popup menus, including subtitle and
-   * captions selection menus.
-   *
-   * @extends Component
-   */
-
-  var Menu = /*#__PURE__*/function (_Component) {
-    inheritsLoose(Menu, _Component);
-
-    /**
-     * Create an instance of this class.
-     *
-     * @param {Player} player
-     *        the player that this component should attach to
-     *
-     * @param {Object} [options]
-     *        Object of option names and values
-     *
-     */
-    function Menu(player, options) {
-      var _this;
-
-      _this = _Component.call(this, player, options) || this;
-
-      if (options) {
-        _this.menuButton_ = options.menuButton;
-      }
-
-      _this.focusedChild_ = -1;
-
-      _this.on('keydown', function (e) {
-        return _this.handleKeyDown(e);
-      }); // All the menu item instances share the same blur handler provided by the menu container.
-
-
-      _this.boundHandleBlur_ = function (e) {
-        return _this.handleBlur(e);
-      };
-
-      _this.boundHandleTapClick_ = function (e) {
-        return _this.handleTapClick(e);
-      };
-
-      return _this;
-    }
-    /**
-     * Add event listeners to the {@link MenuItem}.
-     *
-     * @param {Object} component
-     *        The instance of the `MenuItem` to add listeners to.
-     *
-     */
-
-
-    var _proto = Menu.prototype;
-
-    _proto.addEventListenerForItem = function addEventListenerForItem(component) {
-      if (!(component instanceof Component$1)) {
-        return;
-      }
-
-      this.on(component, 'blur', this.boundHandleBlur_);
-      this.on(component, ['tap', 'click'], this.boundHandleTapClick_);
-    }
-    /**
-     * Remove event listeners from the {@link MenuItem}.
-     *
-     * @param {Object} component
-     *        The instance of the `MenuItem` to remove listeners.
-     *
-     */
-    ;
-
-    _proto.removeEventListenerForItem = function removeEventListenerForItem(component) {
-      if (!(component instanceof Component$1)) {
-        return;
-      }
-
-      this.off(component, 'blur', this.boundHandleBlur_);
-      this.off(component, ['tap', 'click'], this.boundHandleTapClick_);
-    }
-    /**
-     * This method will be called indirectly when the component has been added
-     * before the component adds to the new menu instance by `addItem`.
-     * In this case, the original menu instance will remove the component
-     * by calling `removeChild`.
-     *
-     * @param {Object} component
-     *        The instance of the `MenuItem`
-     */
-    ;
-
-    _proto.removeChild = function removeChild(component) {
-      if (typeof component === 'string') {
-        component = this.getChild(component);
-      }
-
-      this.removeEventListenerForItem(component);
-
-      _Component.prototype.removeChild.call(this, component);
-    }
-    /**
-     * Add a {@link MenuItem} to the menu.
-     *
-     * @param {Object|string} component
-     *        The name or instance of the `MenuItem` to add.
-     *
-     */
-    ;
-
-    _proto.addItem = function addItem(component) {
-      var childComponent = this.addChild(component);
-
-      if (childComponent) {
-        this.addEventListenerForItem(childComponent);
-      }
-    }
-    /**
-     * Create the `Menu`s DOM element.
-     *
-     * @return {Element}
-     *         the element that was created
-     */
-    ;
-
-    _proto.createEl = function createEl$1() {
-      var contentElType = this.options_.contentElType || 'ul';
-      this.contentEl_ = createEl(contentElType, {
-        className: 'vjs-menu-content'
-      });
-      this.contentEl_.setAttribute('role', 'menu');
-
-      var el = _Component.prototype.createEl.call(this, 'div', {
-        append: this.contentEl_,
-        className: 'vjs-menu'
-      });
-
-      el.appendChild(this.contentEl_); // Prevent clicks from bubbling up. Needed for Menu Buttons,
-      // where a click on the parent is significant
-
-      on(el, 'click', function (event) {
-        event.preventDefault();
-        event.stopImmediatePropagation();
-      });
-      return el;
-    };
-
-    _proto.dispose = function dispose() {
-      this.contentEl_ = null;
-      this.boundHandleBlur_ = null;
-      this.boundHandleTapClick_ = null;
-
-      _Component.prototype.dispose.call(this);
-    }
-    /**
-     * Called when a `MenuItem` loses focus.
-     *
-     * @param {EventTarget~Event} event
-     *        The `blur` event that caused this function to be called.
-     *
-     * @listens blur
-     */
-    ;
-
-    _proto.handleBlur = function handleBlur(event) {
-      var relatedTarget = event.relatedTarget || document.activeElement; // Close menu popup when a user clicks outside the menu
-
-      if (!this.children().some(function (element) {
-        return element.el() === relatedTarget;
-      })) {
-        var btn = this.menuButton_;
-
-        if (btn && btn.buttonPressed_ && relatedTarget !== btn.el().firstChild) {
-          btn.unpressButton();
-        }
-      }
-    }
-    /**
-     * Called when a `MenuItem` gets clicked or tapped.
-     *
-     * @param {EventTarget~Event} event
-     *        The `click` or `tap` event that caused this function to be called.
-     *
-     * @listens click,tap
-     */
-    ;
-
-    _proto.handleTapClick = function handleTapClick(event) {
-      // Unpress the associated MenuButton, and move focus back to it
-      if (this.menuButton_) {
-        this.menuButton_.unpressButton();
-        var childComponents = this.children();
-
-        if (!Array.isArray(childComponents)) {
-          return;
-        }
-
-        var foundComponent = childComponents.filter(function (component) {
-          return component.el() === event.target;
-        })[0];
-
-        if (!foundComponent) {
-          return;
-        } // don't focus menu button if item is a caption settings item
-        // because focus will move elsewhere
-
-
-        if (foundComponent.name() !== 'CaptionSettingsMenuItem') {
-          this.menuButton_.focus();
-        }
-      }
-    }
-    /**
-     * Handle a `keydown` event on this menu. This listener is added in the constructor.
-     *
-     * @param {EventTarget~Event} event
-     *        A `keydown` event that happened on the menu.
-     *
-     * @listens keydown
-     */
-    ;
-
-    _proto.handleKeyDown = function handleKeyDown(event) {
-      // Left and Down Arrows
-      if (keycode.isEventKey(event, 'Left') || keycode.isEventKey(event, 'Down')) {
-        event.preventDefault();
-        event.stopPropagation();
-        this.stepForward(); // Up and Right Arrows
-      } else if (keycode.isEventKey(event, 'Right') || keycode.isEventKey(event, 'Up')) {
-        event.preventDefault();
-        event.stopPropagation();
-        this.stepBack();
-      }
-    }
-    /**
-     * Move to next (lower) menu item for keyboard users.
-     */
-    ;
-
-    _proto.stepForward = function stepForward() {
-      var stepChild = 0;
-
-      if (this.focusedChild_ !== undefined) {
-        stepChild = this.focusedChild_ + 1;
-      }
-
-      this.focus(stepChild);
-    }
-    /**
-     * Move to previous (higher) menu item for keyboard users.
-     */
-    ;
-
-    _proto.stepBack = function stepBack() {
-      var stepChild = 0;
-
-      if (this.focusedChild_ !== undefined) {
-        stepChild = this.focusedChild_ - 1;
-      }
-
-      this.focus(stepChild);
-    }
-    /**
-     * Set focus on a {@link MenuItem} in the `Menu`.
-     *
-     * @param {Object|string} [item=0]
-     *        Index of child item set focus on.
-     */
-    ;
-
-    _proto.focus = function focus(item) {
-      if (item === void 0) {
-        item = 0;
-      }
-
-      var children = this.children().slice();
-      var haveTitle = children.length && children[0].hasClass('vjs-menu-title');
-
-      if (haveTitle) {
-        children.shift();
-      }
-
-      if (children.length > 0) {
-        if (item < 0) {
-          item = 0;
-        } else if (item >= children.length) {
-          item = children.length - 1;
-        }
-
-        this.focusedChild_ = item;
-        children[item].el_.focus();
-      }
-    };
-
-    return Menu;
-  }(Component$1);
-
-  Component$1.registerComponent('Menu', Menu);
-
-  /**
-   * A `MenuButton` class for any popup {@link Menu}.
-   *
-   * @extends Component
-   */
-
-  var MenuButton = /*#__PURE__*/function (_Component) {
-    inheritsLoose(MenuButton, _Component);
-
-    /**
-     * Creates an instance of this class.
-     *
-     * @param {Player} player
-     *        The `Player` that this class should be attached to.
-     *
-     * @param {Object} [options={}]
-     *        The key/value store of player options.
-     */
-    function MenuButton(player, options) {
-      var _this;
-
-      if (options === void 0) {
-        options = {};
-      }
-
-      _this = _Component.call(this, player, options) || this;
-      _this.menuButton_ = new Button(player, options);
-
-      _this.menuButton_.controlText(_this.controlText_);
-
-      _this.menuButton_.el_.setAttribute('aria-haspopup', 'true'); // Add buildCSSClass values to the button, not the wrapper
-
-
-      var buttonClass = Button.prototype.buildCSSClass();
-      _this.menuButton_.el_.className = _this.buildCSSClass() + ' ' + buttonClass;
-
-      _this.menuButton_.removeClass('vjs-control');
-
-      _this.addChild(_this.menuButton_);
-
-      _this.update();
-
-      _this.enabled_ = true;
-
-      var handleClick = function handleClick(e) {
-        return _this.handleClick(e);
-      };
-
-      _this.handleMenuKeyUp_ = function (e) {
-        return _this.handleMenuKeyUp(e);
-      };
-
-      _this.on(_this.menuButton_, 'tap', handleClick);
-
-      _this.on(_this.menuButton_, 'click', handleClick);
-
-      _this.on(_this.menuButton_, 'keydown', function (e) {
-        return _this.handleKeyDown(e);
-      });
-
-      _this.on(_this.menuButton_, 'mouseenter', function () {
-        _this.addClass('vjs-hover');
-
-        _this.menu.show();
-
-        on(document, 'keyup', _this.handleMenuKeyUp_);
-      });
-
-      _this.on('mouseleave', function (e) {
-        return _this.handleMouseLeave(e);
-      });
-
-      _this.on('keydown', function (e) {
-        return _this.handleSubmenuKeyDown(e);
-      });
-
-      return _this;
-    }
-    /**
-     * Update the menu based on the current state of its items.
-     */
-
-
-    var _proto = MenuButton.prototype;
-
-    _proto.update = function update() {
-      var menu = this.createMenu();
-
-      if (this.menu) {
-        this.menu.dispose();
-        this.removeChild(this.menu);
-      }
-
-      this.menu = menu;
-      this.addChild(menu);
-      /**
-       * Track the state of the menu button
-       *
-       * @type {Boolean}
-       * @private
-       */
-
-      this.buttonPressed_ = false;
-      this.menuButton_.el_.setAttribute('aria-expanded', 'false');
-
-      if (this.items && this.items.length <= this.hideThreshold_) {
-        this.hide();
-        this.menu.contentEl_.removeAttribute('role');
-      } else {
-        this.show();
-        this.menu.contentEl_.setAttribute('role', 'menu');
-      }
-    }
-    /**
-     * Create the menu and add all items to it.
-     *
-     * @return {Menu}
-     *         The constructed menu
-     */
-    ;
-
-    _proto.createMenu = function createMenu() {
-      var menu = new Menu(this.player_, {
-        menuButton: this
-      });
-      /**
-       * Hide the menu if the number of items is less than or equal to this threshold. This defaults
-       * to 0 and whenever we add items which can be hidden to the menu we'll increment it. We list
-       * it here because every time we run `createMenu` we need to reset the value.
-       *
-       * @protected
-       * @type {Number}
-       */
-
-      this.hideThreshold_ = 0; // Add a title list item to the top
-
-      if (this.options_.title) {
-        var titleEl = createEl('li', {
-          className: 'vjs-menu-title',
-          textContent: toTitleCase$1(this.options_.title),
-          tabIndex: -1
-        });
-        var titleComponent = new Component$1(this.player_, {
-          el: titleEl
-        });
-        menu.addItem(titleComponent);
-      }
-
-      this.items = this.createItems();
-
-      if (this.items) {
-        // Add menu items to the menu
-        for (var i = 0; i < this.items.length; i++) {
-          menu.addItem(this.items[i]);
-        }
-      }
-
-      return menu;
-    }
-    /**
-     * Create the list of menu items. Specific to each subclass.
-     *
-     * @abstract
-     */
-    ;
-
-    _proto.createItems = function createItems() {}
-    /**
-     * Create the `MenuButtons`s DOM element.
-     *
-     * @return {Element}
-     *         The element that gets created.
-     */
-    ;
-
-    _proto.createEl = function createEl() {
-      return _Component.prototype.createEl.call(this, 'div', {
-        className: this.buildWrapperCSSClass()
-      }, {});
-    }
-    /**
-     * Allow sub components to stack CSS class names for the wrapper element
-     *
-     * @return {string}
-     *         The constructed wrapper DOM `className`
-     */
-    ;
-
-    _proto.buildWrapperCSSClass = function buildWrapperCSSClass() {
-      var menuButtonClass = 'vjs-menu-button'; // If the inline option is passed, we want to use different styles altogether.
-
-      if (this.options_.inline === true) {
-        menuButtonClass += '-inline';
-      } else {
-        menuButtonClass += '-popup';
-      } // TODO: Fix the CSS so that this isn't necessary
-
-
-      var buttonClass = Button.prototype.buildCSSClass();
-      return "vjs-menu-button " + menuButtonClass + " " + buttonClass + " " + _Component.prototype.buildCSSClass.call(this);
-    }
-    /**
-     * Builds the default DOM `className`.
-     *
-     * @return {string}
-     *         The DOM `className` for this object.
-     */
-    ;
-
-    _proto.buildCSSClass = function buildCSSClass() {
-      var menuButtonClass = 'vjs-menu-button'; // If the inline option is passed, we want to use different styles altogether.
-
-      if (this.options_.inline === true) {
-        menuButtonClass += '-inline';
-      } else {
-        menuButtonClass += '-popup';
-      }
-
-      return "vjs-menu-button " + menuButtonClass + " " + _Component.prototype.buildCSSClass.call(this);
-    }
-    /**
-     * Get or set the localized control text that will be used for accessibility.
-     *
-     * > NOTE: This will come from the internal `menuButton_` element.
-     *
-     * @param {string} [text]
-     *        Control text for element.
-     *
-     * @param {Element} [el=this.menuButton_.el()]
-     *        Element to set the title on.
-     *
-     * @return {string}
-     *         - The control text when getting
-     */
-    ;
-
-    _proto.controlText = function controlText(text, el) {
-      if (el === void 0) {
-        el = this.menuButton_.el();
-      }
-
-      return this.menuButton_.controlText(text, el);
-    }
-    /**
-     * Dispose of the `menu-button` and all child components.
-     */
-    ;
-
-    _proto.dispose = function dispose() {
-      this.handleMouseLeave();
-
-      _Component.prototype.dispose.call(this);
-    }
-    /**
-     * Handle a click on a `MenuButton`.
-     * See {@link ClickableComponent#handleClick} for instances where this is called.
-     *
-     * @param {EventTarget~Event} event
-     *        The `keydown`, `tap`, or `click` event that caused this function to be
-     *        called.
-     *
-     * @listens tap
-     * @listens click
-     */
-    ;
-
-    _proto.handleClick = function handleClick(event) {
-      if (this.buttonPressed_) {
-        this.unpressButton();
-      } else {
-        this.pressButton();
-      }
-    }
-    /**
-     * Handle `mouseleave` for `MenuButton`.
-     *
-     * @param {EventTarget~Event} event
-     *        The `mouseleave` event that caused this function to be called.
-     *
-     * @listens mouseleave
-     */
-    ;
-
-    _proto.handleMouseLeave = function handleMouseLeave(event) {
-      this.removeClass('vjs-hover');
-      off(document, 'keyup', this.handleMenuKeyUp_);
-    }
-    /**
-     * Set the focus to the actual button, not to this element
-     */
-    ;
-
-    _proto.focus = function focus() {
-      this.menuButton_.focus();
-    }
-    /**
-     * Remove the focus from the actual button, not this element
-     */
-    ;
-
-    _proto.blur = function blur() {
-      this.menuButton_.blur();
-    }
-    /**
-     * Handle tab, escape, down arrow, and up arrow keys for `MenuButton`. See
-     * {@link ClickableComponent#handleKeyDown} for instances where this is called.
-     *
-     * @param {EventTarget~Event} event
-     *        The `keydown` event that caused this function to be called.
-     *
-     * @listens keydown
-     */
-    ;
-
-    _proto.handleKeyDown = function handleKeyDown(event) {
-      // Escape or Tab unpress the 'button'
-      if (keycode.isEventKey(event, 'Esc') || keycode.isEventKey(event, 'Tab')) {
-        if (this.buttonPressed_) {
-          this.unpressButton();
-        } // Don't preventDefault for Tab key - we still want to lose focus
-
-
-        if (!keycode.isEventKey(event, 'Tab')) {
-          event.preventDefault(); // Set focus back to the menu button's button
-
-          this.menuButton_.focus();
-        } // Up Arrow or Down Arrow also 'press' the button to open the menu
-
-      } else if (keycode.isEventKey(event, 'Up') || keycode.isEventKey(event, 'Down')) {
-        if (!this.buttonPressed_) {
-          event.preventDefault();
-          this.pressButton();
-        }
-      }
-    }
-    /**
-     * Handle a `keyup` event on a `MenuButton`. The listener for this is added in
-     * the constructor.
-     *
-     * @param {EventTarget~Event} event
-     *        Key press event
-     *
-     * @listens keyup
-     */
-    ;
-
-    _proto.handleMenuKeyUp = function handleMenuKeyUp(event) {
-      // Escape hides popup menu
-      if (keycode.isEventKey(event, 'Esc') || keycode.isEventKey(event, 'Tab')) {
-        this.removeClass('vjs-hover');
-      }
-    }
-    /**
-     * This method name now delegates to `handleSubmenuKeyDown`. This means
-     * anyone calling `handleSubmenuKeyPress` will not see their method calls
-     * stop working.
-     *
-     * @param {EventTarget~Event} event
-     *        The event that caused this function to be called.
-     */
-    ;
-
-    _proto.handleSubmenuKeyPress = function handleSubmenuKeyPress(event) {
-      this.handleSubmenuKeyDown(event);
-    }
-    /**
-     * Handle a `keydown` event on a sub-menu. The listener for this is added in
-     * the constructor.
-     *
-     * @param {EventTarget~Event} event
-     *        Key press event
-     *
-     * @listens keydown
-     */
-    ;
-
-    _proto.handleSubmenuKeyDown = function handleSubmenuKeyDown(event) {
-      // Escape or Tab unpress the 'button'
-      if (keycode.isEventKey(event, 'Esc') || keycode.isEventKey(event, 'Tab')) {
-        if (this.buttonPressed_) {
-          this.unpressButton();
-        } // Don't preventDefault for Tab key - we still want to lose focus
-
-
-        if (!keycode.isEventKey(event, 'Tab')) {
-          event.preventDefault(); // Set focus back to the menu button's button
-
-          this.menuButton_.focus();
-        }
-      }
-    }
-    /**
-     * Put the current `MenuButton` into a pressed state.
-     */
-    ;
-
-    _proto.pressButton = function pressButton() {
-      if (this.enabled_) {
-        this.buttonPressed_ = true;
-        this.menu.show();
-        this.menu.lockShowing();
-        this.menuButton_.el_.setAttribute('aria-expanded', 'true'); // set the focus into the submenu, except on iOS where it is resulting in
-        // undesired scrolling behavior when the player is in an iframe
-
-        if (IS_IOS && isInFrame()) {
-          // Return early so that the menu isn't focused
-          return;
-        }
-
-        this.menu.focus();
-      }
-    }
-    /**
-     * Take the current `MenuButton` out of a pressed state.
-     */
-    ;
-
-    _proto.unpressButton = function unpressButton() {
-      if (this.enabled_) {
-        this.buttonPressed_ = false;
-        this.menu.unlockShowing();
-        this.menu.hide();
-        this.menuButton_.el_.setAttribute('aria-expanded', 'false');
-      }
-    }
-    /**
-     * Disable the `MenuButton`. Don't allow it to be clicked.
-     */
-    ;
-
-    _proto.disable = function disable() {
-      this.unpressButton();
-      this.enabled_ = false;
-      this.addClass('vjs-disabled');
-      this.menuButton_.disable();
-    }
-    /**
-     * Enable the `MenuButton`. Allow it to be clicked.
-     */
-    ;
-
-    _proto.enable = function enable() {
-      this.enabled_ = true;
-      this.removeClass('vjs-disabled');
-      this.menuButton_.enable();
-    };
-
-    return MenuButton;
-  }(Component$1);
-
-  Component$1.registerComponent('MenuButton', MenuButton);
-
-  /**
-   * The base class for buttons that toggle specific  track types (e.g. subtitles).
-   *
-   * @extends MenuButton
-   */
-
-  var TrackButton = /*#__PURE__*/function (_MenuButton) {
-    inheritsLoose(TrackButton, _MenuButton);
-
-    /**
-     * Creates an instance of this class.
-     *
-     * @param {Player} player
-     *        The `Player` that this class should be attached to.
-     *
-     * @param {Object} [options]
-     *        The key/value store of player options.
-     */
-    function TrackButton(player, options) {
-      var _this;
-
-      var tracks = options.tracks;
-      _this = _MenuButton.call(this, player, options) || this;
-
-      if (_this.items.length <= 1) {
-        _this.hide();
-      }
-
-      if (!tracks) {
-        return assertThisInitialized(_this);
-      }
-
-      var updateHandler = bind(assertThisInitialized(_this), _this.update);
-      tracks.addEventListener('removetrack', updateHandler);
-      tracks.addEventListener('addtrack', updateHandler);
-      tracks.addEventListener('labelchange', updateHandler);
-
-      _this.player_.on('ready', updateHandler);
-
-      _this.player_.on('dispose', function () {
-        tracks.removeEventListener('removetrack', updateHandler);
-        tracks.removeEventListener('addtrack', updateHandler);
-        tracks.removeEventListener('labelchange', updateHandler);
-      });
-
-      return _this;
-    }
-
-    return TrackButton;
-  }(MenuButton);
-
-  Component$1.registerComponent('TrackButton', TrackButton);
-
-  /**
-   * @file menu-keys.js
-   */
-
-  /**
-    * All keys used for operation of a menu (`MenuButton`, `Menu`, and `MenuItem`)
-    * Note that 'Enter' and 'Space' are not included here (otherwise they would
-    * prevent the `MenuButton` and `MenuItem` from being keyboard-clickable)
-    * @typedef MenuKeys
-    * @array
-    */
-  var MenuKeys = ['Tab', 'Esc', 'Up', 'Down', 'Right', 'Left'];
-
-  /**
-   * The component for a menu item. `<li>`
-   *
-   * @extends ClickableComponent
-   */
-
-  var MenuItem = /*#__PURE__*/function (_ClickableComponent) {
-    inheritsLoose(MenuItem, _ClickableComponent);
-
-    /**
-     * Creates an instance of the this class.
-     *
-     * @param {Player} player
-     *        The `Player` that this class should be attached to.
-     *
-     * @param {Object} [options={}]
-     *        The key/value store of player options.
-     *
-     */
-    function MenuItem(player, options) {
-      var _this;
-
-      _this = _ClickableComponent.call(this, player, options) || this;
-      _this.selectable = options.selectable;
-      _this.isSelected_ = options.selected || false;
-      _this.multiSelectable = options.multiSelectable;
-
-      _this.selected(_this.isSelected_);
-
-      if (_this.selectable) {
-        if (_this.multiSelectable) {
-          _this.el_.setAttribute('role', 'menuitemcheckbox');
-        } else {
-          _this.el_.setAttribute('role', 'menuitemradio');
-        }
-      } else {
-        _this.el_.setAttribute('role', 'menuitem');
-      }
-
-      return _this;
-    }
-    /**
-     * Create the `MenuItem's DOM element
-     *
-     * @param {string} [type=li]
-     *        Element's node type, not actually used, always set to `li`.
-     *
-     * @param {Object} [props={}]
-     *        An object of properties that should be set on the element
-     *
-     * @param {Object} [attrs={}]
-     *        An object of attributes that should be set on the element
-     *
-     * @return {Element}
-     *         The element that gets created.
-     */
-
-
-    var _proto = MenuItem.prototype;
-
-    _proto.createEl = function createEl$1(type, props, attrs) {
-      // The control is textual, not just an icon
-      this.nonIconControl = true;
-
-      var el = _ClickableComponent.prototype.createEl.call(this, 'li', assign({
-        className: 'vjs-menu-item',
-        tabIndex: -1
-      }, props), attrs); // swap icon with menu item text.
-
-
-      el.replaceChild(createEl('span', {
-        className: 'vjs-menu-item-text',
-        textContent: this.localize(this.options_.label)
-      }), el.querySelector('.vjs-icon-placeholder'));
-      return el;
-    }
-    /**
-     * Ignore keys which are used by the menu, but pass any other ones up. See
-     * {@link ClickableComponent#handleKeyDown} for instances where this is called.
-     *
-     * @param {EventTarget~Event} event
-     *        The `keydown` event that caused this function to be called.
-     *
-     * @listens keydown
-     */
-    ;
-
-    _proto.handleKeyDown = function handleKeyDown(event) {
-      if (!MenuKeys.some(function (key) {
-        return keycode.isEventKey(event, key);
-      })) {
-        // Pass keydown handling up for unused keys
-        _ClickableComponent.prototype.handleKeyDown.call(this, event);
-      }
-    }
-    /**
-     * Any click on a `MenuItem` puts it into the selected state.
-     * See {@link ClickableComponent#handleClick} for instances where this is called.
-     *
-     * @param {EventTarget~Event} event
-     *        The `keydown`, `tap`, or `click` event that caused this function to be
-     *        called.
-     *
-     * @listens tap
-     * @listens click
-     */
-    ;
-
-    _proto.handleClick = function handleClick(event) {
-      this.selected(true);
-    }
-    /**
-     * Set the state for this menu item as selected or not.
-     *
-     * @param {boolean} selected
-     *        if the menu item is selected or not
-     */
-    ;
-
-    _proto.selected = function selected(_selected) {
-      if (this.selectable) {
-        if (_selected) {
-          this.addClass('vjs-selected');
-          this.el_.setAttribute('aria-checked', 'true'); // aria-checked isn't fully supported by browsers/screen readers,
-          // so indicate selected state to screen reader in the control text.
-
-          this.controlText(', selected');
-          this.isSelected_ = true;
-        } else {
-          this.removeClass('vjs-selected');
-          this.el_.setAttribute('aria-checked', 'false'); // Indicate un-selected state to screen reader
-
-          this.controlText('');
-          this.isSelected_ = false;
-        }
-      }
-    };
-
-    return MenuItem;
-  }(ClickableComponent);
-
-  Component$1.registerComponent('MenuItem', MenuItem);
-
-  /**
-   * The specific menu item type for selecting a language within a text track kind
-   *
-   * @extends MenuItem
-   */
-
-  var TextTrackMenuItem = /*#__PURE__*/function (_MenuItem) {
-    inheritsLoose(TextTrackMenuItem, _MenuItem);
-
-    /**
-     * Creates an instance of this class.
-     *
-     * @param {Player} player
-     *        The `Player` that this class should be attached to.
-     *
-     * @param {Object} [options]
-     *        The key/value store of player options.
-     */
-    function TextTrackMenuItem(player, options) {
-      var _this;
-
-      var track = options.track;
-      var tracks = player.textTracks(); // Modify options for parent MenuItem class's init.
-
-      options.label = track.label || track.language || 'Unknown';
-      options.selected = track.mode === 'showing';
-      _this = _MenuItem.call(this, player, options) || this;
-      _this.track = track; // Determine the relevant kind(s) of tracks for this component and filter
-      // out empty kinds.
-
-      _this.kinds = (options.kinds || [options.kind || _this.track.kind]).filter(Boolean);
-
-      var changeHandler = function changeHandler() {
-        for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
-          args[_key] = arguments[_key];
-        }
-
-        _this.handleTracksChange.apply(assertThisInitialized(_this), args);
-      };
-
-      var selectedLanguageChangeHandler = function selectedLanguageChangeHandler() {
-        for (var _len2 = arguments.length, args = new Array(_len2), _key2 = 0; _key2 < _len2; _key2++) {
-          args[_key2] = arguments[_key2];
-        }
-
-        _this.handleSelectedLanguageChange.apply(assertThisInitialized(_this), args);
-      };
-
-      player.on(['loadstart', 'texttrackchange'], changeHandler);
-      tracks.addEventListener('change', changeHandler);
-      tracks.addEventListener('selectedlanguagechange', selectedLanguageChangeHandler);
-
-      _this.on('dispose', function () {
-        player.off(['loadstart', 'texttrackchange'], changeHandler);
-        tracks.removeEventListener('change', changeHandler);
-        tracks.removeEventListener('selectedlanguagechange', selectedLanguageChangeHandler);
-      }); // iOS7 doesn't dispatch change events to TextTrackLists when an
-      // associated track's mode changes. Without something like
-      // Object.observe() (also not present on iOS7), it's not
-      // possible to detect changes to the mode attribute and polyfill
-      // the change event. As a poor substitute, we manually dispatch
-      // change events whenever the controls modify the mode.
-
-
-      if (tracks.onchange === undefined) {
-        var event;
-
-        _this.on(['tap', 'click'], function () {
-          if (typeof window.Event !== 'object') {
-            // Android 2.3 throws an Illegal Constructor error for window.Event
-            try {
-              event = new window.Event('change');
-            } catch (err) {// continue regardless of error
+        /**
+         * Registers a `Tech` into a shared list for videojs.
+         *
+         * @param {string} name
+         *        Name of the `Tech` to register.
+         *
+         * @param {Object} tech
+         *        The `Tech` class to register.
+         */
+        static registerTech(name, tech) {
+            if (!Tech.techs_) {
+                Tech.techs_ = {};
             }
-          }
-
-          if (!event) {
-            event = document.createEvent('Event');
-            event.initEvent('change', true, true);
-          }
-
-          tracks.dispatchEvent(event);
-        });
-      } // set the default state based on current tracks
-
-
-      _this.handleTracksChange();
-
-      return _this;
-    }
-    /**
-     * This gets called when an `TextTrackMenuItem` is "clicked". See
-     * {@link ClickableComponent} for more detailed information on what a click can be.
-     *
-     * @param {EventTarget~Event} event
-     *        The `keydown`, `tap`, or `click` event that caused this function to be
-     *        called.
-     *
-     * @listens tap
-     * @listens click
-     */
-
-
-    var _proto = TextTrackMenuItem.prototype;
-
-    _proto.handleClick = function handleClick(event) {
-      var referenceTrack = this.track;
-      var tracks = this.player_.textTracks();
-
-      _MenuItem.prototype.handleClick.call(this, event);
-
-      if (!tracks) {
-        return;
-      }
-
-      for (var i = 0; i < tracks.length; i++) {
-        var track = tracks[i]; // If the track from the text tracks list is not of the right kind,
-        // skip it. We do not want to affect tracks of incompatible kind(s).
-
-        if (this.kinds.indexOf(track.kind) === -1) {
-          continue;
-        } // If this text track is the component's track and it is not showing,
-        // set it to showing.
-
-
-        if (track === referenceTrack) {
-          if (track.mode !== 'showing') {
-            track.mode = 'showing';
-          } // If this text track is not the component's track and it is not
-          // disabled, set it to disabled.
-
-        } else if (track.mode !== 'disabled') {
-          track.mode = 'disabled';
-        }
-      }
-    }
-    /**
-     * Handle text track list change
-     *
-     * @param {EventTarget~Event} event
-     *        The `change` event that caused this function to be called.
-     *
-     * @listens TextTrackList#change
-     */
-    ;
-
-    _proto.handleTracksChange = function handleTracksChange(event) {
-      var shouldBeSelected = this.track.mode === 'showing'; // Prevent redundant selected() calls because they may cause
-      // screen readers to read the appended control text unnecessarily
-
-      if (shouldBeSelected !== this.isSelected_) {
-        this.selected(shouldBeSelected);
-      }
-    };
-
-    _proto.handleSelectedLanguageChange = function handleSelectedLanguageChange(event) {
-      if (this.track.mode === 'showing') {
-        var selectedLanguage = this.player_.cache_.selectedLanguage; // Don't replace the kind of track across the same language
-
-        if (selectedLanguage && selectedLanguage.enabled && selectedLanguage.language === this.track.language && selectedLanguage.kind !== this.track.kind) {
-          return;
-        }
-
-        this.player_.cache_.selectedLanguage = {
-          enabled: true,
-          language: this.track.language,
-          kind: this.track.kind
-        };
-      }
-    };
-
-    _proto.dispose = function dispose() {
-      // remove reference to track object on dispose
-      this.track = null;
-
-      _MenuItem.prototype.dispose.call(this);
-    };
-
-    return TextTrackMenuItem;
-  }(MenuItem);
-
-  Component$1.registerComponent('TextTrackMenuItem', TextTrackMenuItem);
-
-  /**
-   * A special menu item for turning of a specific type of text track
-   *
-   * @extends TextTrackMenuItem
-   */
-
-  var OffTextTrackMenuItem = /*#__PURE__*/function (_TextTrackMenuItem) {
-    inheritsLoose(OffTextTrackMenuItem, _TextTrackMenuItem);
-
-    /**
-     * Creates an instance of this class.
-     *
-     * @param {Player} player
-     *        The `Player` that this class should be attached to.
-     *
-     * @param {Object} [options]
-     *        The key/value store of player options.
-     */
-    function OffTextTrackMenuItem(player, options) {
-      // Create pseudo track info
-      // Requires options['kind']
-      options.track = {
-        player: player,
-        // it is no longer necessary to store `kind` or `kinds` on the track itself
-        // since they are now stored in the `kinds` property of all instances of
-        // TextTrackMenuItem, but this will remain for backwards compatibility
-        kind: options.kind,
-        kinds: options.kinds,
-        "default": false,
-        mode: 'disabled'
-      };
-
-      if (!options.kinds) {
-        options.kinds = [options.kind];
-      }
-
-      if (options.label) {
-        options.track.label = options.label;
-      } else {
-        options.track.label = options.kinds.join(' and ') + ' off';
-      } // MenuItem is selectable
-
-
-      options.selectable = true; // MenuItem is NOT multiSelectable (i.e. only one can be marked "selected" at a time)
-
-      options.multiSelectable = false;
-      return _TextTrackMenuItem.call(this, player, options) || this;
-    }
-    /**
-     * Handle text track change
-     *
-     * @param {EventTarget~Event} event
-     *        The event that caused this function to run
-     */
-
-
-    var _proto = OffTextTrackMenuItem.prototype;
-
-    _proto.handleTracksChange = function handleTracksChange(event) {
-      var tracks = this.player().textTracks();
-      var shouldBeSelected = true;
-
-      for (var i = 0, l = tracks.length; i < l; i++) {
-        var track = tracks[i];
-
-        if (this.options_.kinds.indexOf(track.kind) > -1 && track.mode === 'showing') {
-          shouldBeSelected = false;
-          break;
-        }
-      } // Prevent redundant selected() calls because they may cause
-      // screen readers to read the appended control text unnecessarily
-
-
-      if (shouldBeSelected !== this.isSelected_) {
-        this.selected(shouldBeSelected);
-      }
-    };
-
-    _proto.handleSelectedLanguageChange = function handleSelectedLanguageChange(event) {
-      var tracks = this.player().textTracks();
-      var allHidden = true;
-
-      for (var i = 0, l = tracks.length; i < l; i++) {
-        var track = tracks[i];
-
-        if (['captions', 'descriptions', 'subtitles'].indexOf(track.kind) > -1 && track.mode === 'showing') {
-          allHidden = false;
-          break;
-        }
-      }
-
-      if (allHidden) {
-        this.player_.cache_.selectedLanguage = {
-          enabled: false
-        };
-      }
-    };
-
-    return OffTextTrackMenuItem;
-  }(TextTrackMenuItem);
-
-  Component$1.registerComponent('OffTextTrackMenuItem', OffTextTrackMenuItem);
-
-  /**
-   * The base class for buttons that toggle specific text track types (e.g. subtitles)
-   *
-   * @extends MenuButton
-   */
-
-  var TextTrackButton = /*#__PURE__*/function (_TrackButton) {
-    inheritsLoose(TextTrackButton, _TrackButton);
-
-    /**
-     * Creates an instance of this class.
-     *
-     * @param {Player} player
-     *        The `Player` that this class should be attached to.
-     *
-     * @param {Object} [options={}]
-     *        The key/value store of player options.
-     */
-    function TextTrackButton(player, options) {
-      if (options === void 0) {
-        options = {};
-      }
-
-      options.tracks = player.textTracks();
-      return _TrackButton.call(this, player, options) || this;
-    }
-    /**
-     * Create a menu item for each text track
-     *
-     * @param {TextTrackMenuItem[]} [items=[]]
-     *        Existing array of items to use during creation
-     *
-     * @return {TextTrackMenuItem[]}
-     *         Array of menu items that were created
-     */
-
-
-    var _proto = TextTrackButton.prototype;
-
-    _proto.createItems = function createItems(items, TrackMenuItem) {
-      if (items === void 0) {
-        items = [];
-      }
-
-      if (TrackMenuItem === void 0) {
-        TrackMenuItem = TextTrackMenuItem;
-      }
-
-      // Label is an override for the [track] off label
-      // USed to localise captions/subtitles
-      var label;
-
-      if (this.label_) {
-        label = this.label_ + " off";
-      } // Add an OFF menu item to turn all tracks off
-
-
-      items.push(new OffTextTrackMenuItem(this.player_, {
-        kinds: this.kinds_,
-        kind: this.kind_,
-        label: label
-      }));
-      this.hideThreshold_ += 1;
-      var tracks = this.player_.textTracks();
-
-      if (!Array.isArray(this.kinds_)) {
-        this.kinds_ = [this.kind_];
-      }
-
-      for (var i = 0; i < tracks.length; i++) {
-        var track = tracks[i]; // only add tracks that are of an appropriate kind and have a label
-
-        if (this.kinds_.indexOf(track.kind) > -1) {
-          var item = new TrackMenuItem(this.player_, {
-            track: track,
-            kinds: this.kinds_,
-            kind: this.kind_,
-            // MenuItem is selectable
-            selectable: true,
-            // MenuItem is NOT multiSelectable (i.e. only one can be marked "selected" at a time)
-            multiSelectable: false
-          });
-          item.addClass("vjs-" + track.kind + "-menu-item");
-          items.push(item);
-        }
-      }
-
-      return items;
-    };
-
-    return TextTrackButton;
-  }(TrackButton);
-
-  Component$1.registerComponent('TextTrackButton', TextTrackButton);
-
-  /**
-   * The chapter track menu item
-   *
-   * @extends MenuItem
-   */
-
-  var ChaptersTrackMenuItem = /*#__PURE__*/function (_MenuItem) {
-    inheritsLoose(ChaptersTrackMenuItem, _MenuItem);
-
-    /**
-     * Creates an instance of this class.
-     *
-     * @param {Player} player
-     *        The `Player` that this class should be attached to.
-     *
-     * @param {Object} [options]
-     *        The key/value store of player options.
-     */
-    function ChaptersTrackMenuItem(player, options) {
-      var _this;
-
-      var track = options.track;
-      var cue = options.cue;
-      var currentTime = player.currentTime(); // Modify options for parent MenuItem class's init.
-
-      options.selectable = true;
-      options.multiSelectable = false;
-      options.label = cue.text;
-      options.selected = cue.startTime <= currentTime && currentTime < cue.endTime;
-      _this = _MenuItem.call(this, player, options) || this;
-      _this.track = track;
-      _this.cue = cue;
-      return _this;
-    }
-    /**
-     * This gets called when an `ChaptersTrackMenuItem` is "clicked". See
-     * {@link ClickableComponent} for more detailed information on what a click can be.
-     *
-     * @param {EventTarget~Event} [event]
-     *        The `keydown`, `tap`, or `click` event that caused this function to be
-     *        called.
-     *
-     * @listens tap
-     * @listens click
-     */
-
-
-    var _proto = ChaptersTrackMenuItem.prototype;
-
-    _proto.handleClick = function handleClick(event) {
-      _MenuItem.prototype.handleClick.call(this);
-
-      this.player_.currentTime(this.cue.startTime);
-    };
-
-    return ChaptersTrackMenuItem;
-  }(MenuItem);
-
-  Component$1.registerComponent('ChaptersTrackMenuItem', ChaptersTrackMenuItem);
-
-  /**
-   * The button component for toggling and selecting chapters
-   * Chapters act much differently than other text tracks
-   * Cues are navigation vs. other tracks of alternative languages
-   *
-   * @extends TextTrackButton
-   */
-
-  var ChaptersButton = /*#__PURE__*/function (_TextTrackButton) {
-    inheritsLoose(ChaptersButton, _TextTrackButton);
-
-    /**
-     * Creates an instance of this class.
-     *
-     * @param {Player} player
-     *        The `Player` that this class should be attached to.
-     *
-     * @param {Object} [options]
-     *        The key/value store of player options.
-     *
-     * @param {Component~ReadyCallback} [ready]
-     *        The function to call when this function is ready.
-     */
-    function ChaptersButton(player, options, ready) {
-      var _this;
-
-      _this = _TextTrackButton.call(this, player, options, ready) || this;
-
-      _this.selectCurrentItem_ = function () {
-        _this.items.forEach(function (item) {
-          item.selected(_this.track_.activeCues[0] === item.cue);
-        });
-      };
-
-      return _this;
-    }
-    /**
-     * Builds the default DOM `className`.
-     *
-     * @return {string}
-     *         The DOM `className` for this object.
-     */
-
-
-    var _proto = ChaptersButton.prototype;
-
-    _proto.buildCSSClass = function buildCSSClass() {
-      return "vjs-chapters-button " + _TextTrackButton.prototype.buildCSSClass.call(this);
-    };
-
-    _proto.buildWrapperCSSClass = function buildWrapperCSSClass() {
-      return "vjs-chapters-button " + _TextTrackButton.prototype.buildWrapperCSSClass.call(this);
-    }
-    /**
-     * Update the menu based on the current state of its items.
-     *
-     * @param {EventTarget~Event} [event]
-     *        An event that triggered this function to run.
-     *
-     * @listens TextTrackList#addtrack
-     * @listens TextTrackList#removetrack
-     * @listens TextTrackList#change
-     */
-    ;
-
-    _proto.update = function update(event) {
-      if (event && event.track && event.track.kind !== 'chapters') {
-        return;
-      }
-
-      var track = this.findChaptersTrack();
-
-      if (track !== this.track_) {
-        this.setTrack(track);
-
-        _TextTrackButton.prototype.update.call(this);
-      } else if (!this.items || track && track.cues && track.cues.length !== this.items.length) {
-        // Update the menu initially or if the number of cues has changed since set
-        _TextTrackButton.prototype.update.call(this);
-      }
-    }
-    /**
-     * Set the currently selected track for the chapters button.
-     *
-     * @param {TextTrack} track
-     *        The new track to select. Nothing will change if this is the currently selected
-     *        track.
-     */
-    ;
-
-    _proto.setTrack = function setTrack(track) {
-      if (this.track_ === track) {
-        return;
-      }
-
-      if (!this.updateHandler_) {
-        this.updateHandler_ = this.update.bind(this);
-      } // here this.track_ refers to the old track instance
-
-
-      if (this.track_) {
-        var remoteTextTrackEl = this.player_.remoteTextTrackEls().getTrackElementByTrack_(this.track_);
-
-        if (remoteTextTrackEl) {
-          remoteTextTrackEl.removeEventListener('load', this.updateHandler_);
-        }
-
-        this.track_.removeEventListener('cuechange', this.selectCurrentItem_);
-        this.track_ = null;
-      }
-
-      this.track_ = track; // here this.track_ refers to the new track instance
-
-      if (this.track_) {
-        this.track_.mode = 'hidden';
-
-        var _remoteTextTrackEl = this.player_.remoteTextTrackEls().getTrackElementByTrack_(this.track_);
-
-        if (_remoteTextTrackEl) {
-          _remoteTextTrackEl.addEventListener('load', this.updateHandler_);
-        }
-
-        this.track_.addEventListener('cuechange', this.selectCurrentItem_);
-      }
-    }
-    /**
-     * Find the track object that is currently in use by this ChaptersButton
-     *
-     * @return {TextTrack|undefined}
-     *         The current track or undefined if none was found.
-     */
-    ;
-
-    _proto.findChaptersTrack = function findChaptersTrack() {
-      var tracks = this.player_.textTracks() || [];
-
-      for (var i = tracks.length - 1; i >= 0; i--) {
-        // We will always choose the last track as our chaptersTrack
-        var track = tracks[i];
-
-        if (track.kind === this.kind_) {
-          return track;
-        }
-      }
-    }
-    /**
-     * Get the caption for the ChaptersButton based on the track label. This will also
-     * use the current tracks localized kind as a fallback if a label does not exist.
-     *
-     * @return {string}
-     *         The tracks current label or the localized track kind.
-     */
-    ;
-
-    _proto.getMenuCaption = function getMenuCaption() {
-      if (this.track_ && this.track_.label) {
-        return this.track_.label;
-      }
-
-      return this.localize(toTitleCase$1(this.kind_));
-    }
-    /**
-     * Create menu from chapter track
-     *
-     * @return {Menu}
-     *         New menu for the chapter buttons
-     */
-    ;
-
-    _proto.createMenu = function createMenu() {
-      this.options_.title = this.getMenuCaption();
-      return _TextTrackButton.prototype.createMenu.call(this);
-    }
-    /**
-     * Create a menu item for each text track
-     *
-     * @return {TextTrackMenuItem[]}
-     *         Array of menu items
-     */
-    ;
-
-    _proto.createItems = function createItems() {
-      var items = [];
-
-      if (!this.track_) {
-        return items;
-      }
-
-      var cues = this.track_.cues;
-
-      if (!cues) {
-        return items;
-      }
-
-      for (var i = 0, l = cues.length; i < l; i++) {
-        var cue = cues[i];
-        var mi = new ChaptersTrackMenuItem(this.player_, {
-          track: this.track_,
-          cue: cue
-        });
-        items.push(mi);
-      }
-
-      return items;
-    };
-
-    return ChaptersButton;
-  }(TextTrackButton);
-  /**
-   * `kind` of TextTrack to look for to associate it with this menu.
-   *
-   * @type {string}
-   * @private
-   */
-
-
-  ChaptersButton.prototype.kind_ = 'chapters';
-  /**
-   * The text that should display over the `ChaptersButton`s controls. Added for localization.
-   *
-   * @type {string}
-   * @private
-   */
-
-  ChaptersButton.prototype.controlText_ = 'Chapters';
-  Component$1.registerComponent('ChaptersButton', ChaptersButton);
-
-  /**
-   * The button component for toggling and selecting descriptions
-   *
-   * @extends TextTrackButton
-   */
-
-  var DescriptionsButton = /*#__PURE__*/function (_TextTrackButton) {
-    inheritsLoose(DescriptionsButton, _TextTrackButton);
-
-    /**
-     * Creates an instance of this class.
-     *
-     * @param {Player} player
-     *        The `Player` that this class should be attached to.
-     *
-     * @param {Object} [options]
-     *        The key/value store of player options.
-     *
-     * @param {Component~ReadyCallback} [ready]
-     *        The function to call when this component is ready.
-     */
-    function DescriptionsButton(player, options, ready) {
-      var _this;
-
-      _this = _TextTrackButton.call(this, player, options, ready) || this;
-      var tracks = player.textTracks();
-      var changeHandler = bind(assertThisInitialized(_this), _this.handleTracksChange);
-      tracks.addEventListener('change', changeHandler);
-
-      _this.on('dispose', function () {
-        tracks.removeEventListener('change', changeHandler);
-      });
-
-      return _this;
-    }
-    /**
-     * Handle text track change
-     *
-     * @param {EventTarget~Event} event
-     *        The event that caused this function to run
-     *
-     * @listens TextTrackList#change
-     */
-
-
-    var _proto = DescriptionsButton.prototype;
-
-    _proto.handleTracksChange = function handleTracksChange(event) {
-      var tracks = this.player().textTracks();
-      var disabled = false; // Check whether a track of a different kind is showing
-
-      for (var i = 0, l = tracks.length; i < l; i++) {
-        var track = tracks[i];
-
-        if (track.kind !== this.kind_ && track.mode === 'showing') {
-          disabled = true;
-          break;
-        }
-      } // If another track is showing, disable this menu button
-
-
-      if (disabled) {
-        this.disable();
-      } else {
-        this.enable();
-      }
-    }
-    /**
-     * Builds the default DOM `className`.
-     *
-     * @return {string}
-     *         The DOM `className` for this object.
-     */
-    ;
-
-    _proto.buildCSSClass = function buildCSSClass() {
-      return "vjs-descriptions-button " + _TextTrackButton.prototype.buildCSSClass.call(this);
-    };
-
-    _proto.buildWrapperCSSClass = function buildWrapperCSSClass() {
-      return "vjs-descriptions-button " + _TextTrackButton.prototype.buildWrapperCSSClass.call(this);
-    };
-
-    return DescriptionsButton;
-  }(TextTrackButton);
-  /**
-   * `kind` of TextTrack to look for to associate it with this menu.
-   *
-   * @type {string}
-   * @private
-   */
-
-
-  DescriptionsButton.prototype.kind_ = 'descriptions';
-  /**
-   * The text that should display over the `DescriptionsButton`s controls. Added for localization.
-   *
-   * @type {string}
-   * @private
-   */
-
-  DescriptionsButton.prototype.controlText_ = 'Descriptions';
-  Component$1.registerComponent('DescriptionsButton', DescriptionsButton);
-
-  /**
-   * The button component for toggling and selecting subtitles
-   *
-   * @extends TextTrackButton
-   */
-
-  var SubtitlesButton = /*#__PURE__*/function (_TextTrackButton) {
-    inheritsLoose(SubtitlesButton, _TextTrackButton);
-
-    /**
-     * Creates an instance of this class.
-     *
-     * @param {Player} player
-     *        The `Player` that this class should be attached to.
-     *
-     * @param {Object} [options]
-     *        The key/value store of player options.
-     *
-     * @param {Component~ReadyCallback} [ready]
-     *        The function to call when this component is ready.
-     */
-    function SubtitlesButton(player, options, ready) {
-      return _TextTrackButton.call(this, player, options, ready) || this;
-    }
-    /**
-     * Builds the default DOM `className`.
-     *
-     * @return {string}
-     *         The DOM `className` for this object.
-     */
-
-
-    var _proto = SubtitlesButton.prototype;
-
-    _proto.buildCSSClass = function buildCSSClass() {
-      return "vjs-subtitles-button " + _TextTrackButton.prototype.buildCSSClass.call(this);
-    };
-
-    _proto.buildWrapperCSSClass = function buildWrapperCSSClass() {
-      return "vjs-subtitles-button " + _TextTrackButton.prototype.buildWrapperCSSClass.call(this);
-    };
-
-    return SubtitlesButton;
-  }(TextTrackButton);
-  /**
-   * `kind` of TextTrack to look for to associate it with this menu.
-   *
-   * @type {string}
-   * @private
-   */
-
-
-  SubtitlesButton.prototype.kind_ = 'subtitles';
-  /**
-   * The text that should display over the `SubtitlesButton`s controls. Added for localization.
-   *
-   * @type {string}
-   * @private
-   */
-
-  SubtitlesButton.prototype.controlText_ = 'Subtitles';
-  Component$1.registerComponent('SubtitlesButton', SubtitlesButton);
-
-  /**
-   * The menu item for caption track settings menu
-   *
-   * @extends TextTrackMenuItem
-   */
-
-  var CaptionSettingsMenuItem = /*#__PURE__*/function (_TextTrackMenuItem) {
-    inheritsLoose(CaptionSettingsMenuItem, _TextTrackMenuItem);
-
-    /**
-     * Creates an instance of this class.
-     *
-     * @param {Player} player
-     *        The `Player` that this class should be attached to.
-     *
-     * @param {Object} [options]
-     *        The key/value store of player options.
-     */
-    function CaptionSettingsMenuItem(player, options) {
-      var _this;
-
-      options.track = {
-        player: player,
-        kind: options.kind,
-        label: options.kind + ' settings',
-        selectable: false,
-        "default": false,
-        mode: 'disabled'
-      }; // CaptionSettingsMenuItem has no concept of 'selected'
-
-      options.selectable = false;
-      options.name = 'CaptionSettingsMenuItem';
-      _this = _TextTrackMenuItem.call(this, player, options) || this;
-
-      _this.addClass('vjs-texttrack-settings');
-
-      _this.controlText(', opens ' + options.kind + ' settings dialog');
-
-      return _this;
-    }
-    /**
-     * This gets called when an `CaptionSettingsMenuItem` is "clicked". See
-     * {@link ClickableComponent} for more detailed information on what a click can be.
-     *
-     * @param {EventTarget~Event} [event]
-     *        The `keydown`, `tap`, or `click` event that caused this function to be
-     *        called.
-     *
-     * @listens tap
-     * @listens click
-     */
-
-
-    var _proto = CaptionSettingsMenuItem.prototype;
-
-    _proto.handleClick = function handleClick(event) {
-      this.player().getChild('textTrackSettings').open();
-    };
-
-    return CaptionSettingsMenuItem;
-  }(TextTrackMenuItem);
-
-  Component$1.registerComponent('CaptionSettingsMenuItem', CaptionSettingsMenuItem);
-
-  /**
-   * The button component for toggling and selecting captions
-   *
-   * @extends TextTrackButton
-   */
-
-  var CaptionsButton = /*#__PURE__*/function (_TextTrackButton) {
-    inheritsLoose(CaptionsButton, _TextTrackButton);
-
-    /**
-     * Creates an instance of this class.
-     *
-     * @param {Player} player
-     *        The `Player` that this class should be attached to.
-     *
-     * @param {Object} [options]
-     *        The key/value store of player options.
-     *
-     * @param {Component~ReadyCallback} [ready]
-     *        The function to call when this component is ready.
-     */
-    function CaptionsButton(player, options, ready) {
-      return _TextTrackButton.call(this, player, options, ready) || this;
-    }
-    /**
-     * Builds the default DOM `className`.
-     *
-     * @return {string}
-     *         The DOM `className` for this object.
-     */
-
-
-    var _proto = CaptionsButton.prototype;
-
-    _proto.buildCSSClass = function buildCSSClass() {
-      return "vjs-captions-button " + _TextTrackButton.prototype.buildCSSClass.call(this);
-    };
-
-    _proto.buildWrapperCSSClass = function buildWrapperCSSClass() {
-      return "vjs-captions-button " + _TextTrackButton.prototype.buildWrapperCSSClass.call(this);
-    }
-    /**
-     * Create caption menu items
-     *
-     * @return {CaptionSettingsMenuItem[]}
-     *         The array of current menu items.
-     */
-    ;
-
-    _proto.createItems = function createItems() {
-      var items = [];
-
-      if (!(this.player().tech_ && this.player().tech_.featuresNativeTextTracks) && this.player().getChild('textTrackSettings')) {
-        items.push(new CaptionSettingsMenuItem(this.player_, {
-          kind: this.kind_
-        }));
-        this.hideThreshold_ += 1;
-      }
-
-      return _TextTrackButton.prototype.createItems.call(this, items);
-    };
-
-    return CaptionsButton;
-  }(TextTrackButton);
-  /**
-   * `kind` of TextTrack to look for to associate it with this menu.
-   *
-   * @type {string}
-   * @private
-   */
-
-
-  CaptionsButton.prototype.kind_ = 'captions';
-  /**
-   * The text that should display over the `CaptionsButton`s controls. Added for localization.
-   *
-   * @type {string}
-   * @private
-   */
-
-  CaptionsButton.prototype.controlText_ = 'Captions';
-  Component$1.registerComponent('CaptionsButton', CaptionsButton);
-
-  /**
-   * SubsCapsMenuItem has an [cc] icon to distinguish captions from subtitles
-   * in the SubsCapsMenu.
-   *
-   * @extends TextTrackMenuItem
-   */
-
-  var SubsCapsMenuItem = /*#__PURE__*/function (_TextTrackMenuItem) {
-    inheritsLoose(SubsCapsMenuItem, _TextTrackMenuItem);
-
-    function SubsCapsMenuItem() {
-      return _TextTrackMenuItem.apply(this, arguments) || this;
-    }
-
-    var _proto = SubsCapsMenuItem.prototype;
-
-    _proto.createEl = function createEl$1(type, props, attrs) {
-      var el = _TextTrackMenuItem.prototype.createEl.call(this, type, props, attrs);
-
-      var parentSpan = el.querySelector('.vjs-menu-item-text');
-
-      if (this.options_.track.kind === 'captions') {
-        parentSpan.appendChild(createEl('span', {
-          className: 'vjs-icon-placeholder'
-        }, {
-          'aria-hidden': true
-        }));
-        parentSpan.appendChild(createEl('span', {
-          className: 'vjs-control-text',
-          // space added as the text will visually flow with the
-          // label
-          textContent: " " + this.localize('Captions')
-        }));
-      }
-
-      return el;
-    };
-
-    return SubsCapsMenuItem;
-  }(TextTrackMenuItem);
-
-  Component$1.registerComponent('SubsCapsMenuItem', SubsCapsMenuItem);
-
-  /**
-   * The button component for toggling and selecting captions and/or subtitles
-   *
-   * @extends TextTrackButton
-   */
-
-  var SubsCapsButton = /*#__PURE__*/function (_TextTrackButton) {
-    inheritsLoose(SubsCapsButton, _TextTrackButton);
-
-    function SubsCapsButton(player, options) {
-      var _this;
-
-      if (options === void 0) {
-        options = {};
-      }
-
-      _this = _TextTrackButton.call(this, player, options) || this; // Although North America uses "captions" in most cases for
-      // "captions and subtitles" other locales use "subtitles"
-
-      _this.label_ = 'subtitles';
-
-      if (['en', 'en-us', 'en-ca', 'fr-ca'].indexOf(_this.player_.language_) > -1) {
-        _this.label_ = 'captions';
-      }
-
-      _this.menuButton_.controlText(toTitleCase$1(_this.label_));
-
-      return _this;
-    }
-    /**
-     * Builds the default DOM `className`.
-     *
-     * @return {string}
-     *         The DOM `className` for this object.
-     */
-
-
-    var _proto = SubsCapsButton.prototype;
-
-    _proto.buildCSSClass = function buildCSSClass() {
-      return "vjs-subs-caps-button " + _TextTrackButton.prototype.buildCSSClass.call(this);
-    };
-
-    _proto.buildWrapperCSSClass = function buildWrapperCSSClass() {
-      return "vjs-subs-caps-button " + _TextTrackButton.prototype.buildWrapperCSSClass.call(this);
-    }
-    /**
-     * Create caption/subtitles menu items
-     *
-     * @return {CaptionSettingsMenuItem[]}
-     *         The array of current menu items.
-     */
-    ;
-
-    _proto.createItems = function createItems() {
-      var items = [];
-
-      if (!(this.player().tech_ && this.player().tech_.featuresNativeTextTracks) && this.player().getChild('textTrackSettings')) {
-        items.push(new CaptionSettingsMenuItem(this.player_, {
-          kind: this.label_
-        }));
-        this.hideThreshold_ += 1;
-      }
-
-      items = _TextTrackButton.prototype.createItems.call(this, items, SubsCapsMenuItem);
-      return items;
-    };
-
-    return SubsCapsButton;
-  }(TextTrackButton);
-  /**
-   * `kind`s of TextTrack to look for to associate it with this menu.
-   *
-   * @type {array}
-   * @private
-   */
-
-
-  SubsCapsButton.prototype.kinds_ = ['captions', 'subtitles'];
-  /**
-   * The text that should display over the `SubsCapsButton`s controls.
-   *
-   *
-   * @type {string}
-   * @private
-   */
-
-  SubsCapsButton.prototype.controlText_ = 'Subtitles';
-  Component$1.registerComponent('SubsCapsButton', SubsCapsButton);
-
-  /**
-   * An {@link AudioTrack} {@link MenuItem}
-   *
-   * @extends MenuItem
-   */
-
-  var AudioTrackMenuItem = /*#__PURE__*/function (_MenuItem) {
-    inheritsLoose(AudioTrackMenuItem, _MenuItem);
-
-    /**
-     * Creates an instance of this class.
-     *
-     * @param {Player} player
-     *        The `Player` that this class should be attached to.
-     *
-     * @param {Object} [options]
-     *        The key/value store of player options.
-     */
-    function AudioTrackMenuItem(player, options) {
-      var _this;
-
-      var track = options.track;
-      var tracks = player.audioTracks(); // Modify options for parent MenuItem class's init.
-
-      options.label = track.label || track.language || 'Unknown';
-      options.selected = track.enabled;
-      _this = _MenuItem.call(this, player, options) || this;
-      _this.track = track;
-
-      _this.addClass("vjs-" + track.kind + "-menu-item");
-
-      var changeHandler = function changeHandler() {
-        for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
-          args[_key] = arguments[_key];
-        }
-
-        _this.handleTracksChange.apply(assertThisInitialized(_this), args);
-      };
-
-      tracks.addEventListener('change', changeHandler);
-
-      _this.on('dispose', function () {
-        tracks.removeEventListener('change', changeHandler);
-      });
-
-      return _this;
-    }
-
-    var _proto = AudioTrackMenuItem.prototype;
-
-    _proto.createEl = function createEl$1(type, props, attrs) {
-      var el = _MenuItem.prototype.createEl.call(this, type, props, attrs);
-
-      var parentSpan = el.querySelector('.vjs-menu-item-text');
-
-      if (this.options_.track.kind === 'main-desc') {
-        parentSpan.appendChild(createEl('span', {
-          className: 'vjs-icon-placeholder'
-        }, {
-          'aria-hidden': true
-        }));
-        parentSpan.appendChild(createEl('span', {
-          className: 'vjs-control-text',
-          textContent: ' ' + this.localize('Descriptions')
-        }));
-      }
-
-      return el;
-    }
-    /**
-     * This gets called when an `AudioTrackMenuItem is "clicked". See {@link ClickableComponent}
-     * for more detailed information on what a click can be.
-     *
-     * @param {EventTarget~Event} [event]
-     *        The `keydown`, `tap`, or `click` event that caused this function to be
-     *        called.
-     *
-     * @listens tap
-     * @listens click
-     */
-    ;
-
-    _proto.handleClick = function handleClick(event) {
-      _MenuItem.prototype.handleClick.call(this, event); // the audio track list will automatically toggle other tracks
-      // off for us.
-
-
-      this.track.enabled = true; // when native audio tracks are used, we want to make sure that other tracks are turned off
-
-      if (this.player_.tech_.featuresNativeAudioTracks) {
-        var tracks = this.player_.audioTracks();
-
-        for (var i = 0; i < tracks.length; i++) {
-          var track = tracks[i]; // skip the current track since we enabled it above
-
-          if (track === this.track) {
-            continue;
-          }
-
-          track.enabled = track === this.track;
-        }
-      }
-    }
-    /**
-     * Handle any {@link AudioTrack} change.
-     *
-     * @param {EventTarget~Event} [event]
-     *        The {@link AudioTrackList#change} event that caused this to run.
-     *
-     * @listens AudioTrackList#change
-     */
-    ;
-
-    _proto.handleTracksChange = function handleTracksChange(event) {
-      this.selected(this.track.enabled);
-    };
-
-    return AudioTrackMenuItem;
-  }(MenuItem);
-
-  Component$1.registerComponent('AudioTrackMenuItem', AudioTrackMenuItem);
-
-  /**
-   * The base class for buttons that toggle specific {@link AudioTrack} types.
-   *
-   * @extends TrackButton
-   */
-
-  var AudioTrackButton = /*#__PURE__*/function (_TrackButton) {
-    inheritsLoose(AudioTrackButton, _TrackButton);
-
-    /**
-     * Creates an instance of this class.
-     *
-     * @param {Player} player
-     *        The `Player` that this class should be attached to.
-     *
-     * @param {Object} [options={}]
-     *        The key/value store of player options.
-     */
-    function AudioTrackButton(player, options) {
-      if (options === void 0) {
-        options = {};
-      }
-
-      options.tracks = player.audioTracks();
-      return _TrackButton.call(this, player, options) || this;
-    }
-    /**
-     * Builds the default DOM `className`.
-     *
-     * @return {string}
-     *         The DOM `className` for this object.
-     */
-
-
-    var _proto = AudioTrackButton.prototype;
-
-    _proto.buildCSSClass = function buildCSSClass() {
-      return "vjs-audio-button " + _TrackButton.prototype.buildCSSClass.call(this);
-    };
-
-    _proto.buildWrapperCSSClass = function buildWrapperCSSClass() {
-      return "vjs-audio-button " + _TrackButton.prototype.buildWrapperCSSClass.call(this);
-    }
-    /**
-     * Create a menu item for each audio track
-     *
-     * @param {AudioTrackMenuItem[]} [items=[]]
-     *        An array of existing menu items to use.
-     *
-     * @return {AudioTrackMenuItem[]}
-     *         An array of menu items
-     */
-    ;
-
-    _proto.createItems = function createItems(items) {
-      if (items === void 0) {
-        items = [];
-      }
-
-      // if there's only one audio track, there no point in showing it
-      this.hideThreshold_ = 1;
-      var tracks = this.player_.audioTracks();
-
-      for (var i = 0; i < tracks.length; i++) {
-        var track = tracks[i];
-        items.push(new AudioTrackMenuItem(this.player_, {
-          track: track,
-          // MenuItem is selectable
-          selectable: true,
-          // MenuItem is NOT multiSelectable (i.e. only one can be marked "selected" at a time)
-          multiSelectable: false
-        }));
-      }
-
-      return items;
-    };
-
-    return AudioTrackButton;
-  }(TrackButton);
-  /**
-   * The text that should display over the `AudioTrackButton`s controls. Added for localization.
-   *
-   * @type {string}
-   * @private
-   */
-
-
-  AudioTrackButton.prototype.controlText_ = 'Audio Track';
-  Component$1.registerComponent('AudioTrackButton', AudioTrackButton);
-
-  /**
-   * The specific menu item type for selecting a playback rate.
-   *
-   * @extends MenuItem
-   */
-
-  var PlaybackRateMenuItem = /*#__PURE__*/function (_MenuItem) {
-    inheritsLoose(PlaybackRateMenuItem, _MenuItem);
-
-    /**
-     * Creates an instance of this class.
-     *
-     * @param {Player} player
-     *        The `Player` that this class should be attached to.
-     *
-     * @param {Object} [options]
-     *        The key/value store of player options.
-     */
-    function PlaybackRateMenuItem(player, options) {
-      var _this;
-
-      var label = options.rate;
-      var rate = parseFloat(label, 10); // Modify options for parent MenuItem class's init.
-
-      options.label = label;
-      options.selected = rate === player.playbackRate();
-      options.selectable = true;
-      options.multiSelectable = false;
-      _this = _MenuItem.call(this, player, options) || this;
-      _this.label = label;
-      _this.rate = rate;
-
-      _this.on(player, 'ratechange', function (e) {
-        return _this.update(e);
-      });
-
-      return _this;
-    }
-    /**
-     * This gets called when an `PlaybackRateMenuItem` is "clicked". See
-     * {@link ClickableComponent} for more detailed information on what a click can be.
-     *
-     * @param {EventTarget~Event} [event]
-     *        The `keydown`, `tap`, or `click` event that caused this function to be
-     *        called.
-     *
-     * @listens tap
-     * @listens click
-     */
-
-
-    var _proto = PlaybackRateMenuItem.prototype;
-
-    _proto.handleClick = function handleClick(event) {
-      _MenuItem.prototype.handleClick.call(this);
-
-      this.player().playbackRate(this.rate);
-    }
-    /**
-     * Update the PlaybackRateMenuItem when the playbackrate changes.
-     *
-     * @param {EventTarget~Event} [event]
-     *        The `ratechange` event that caused this function to run.
-     *
-     * @listens Player#ratechange
-     */
-    ;
-
-    _proto.update = function update(event) {
-      this.selected(this.player().playbackRate() === this.rate);
-    };
-
-    return PlaybackRateMenuItem;
-  }(MenuItem);
-  /**
-   * The text that should display over the `PlaybackRateMenuItem`s controls. Added for localization.
-   *
-   * @type {string}
-   * @private
-   */
-
-
-  PlaybackRateMenuItem.prototype.contentElType = 'button';
-  Component$1.registerComponent('PlaybackRateMenuItem', PlaybackRateMenuItem);
-
-  /**
-   * The component for controlling the playback rate.
-   *
-   * @extends MenuButton
-   */
-
-  var PlaybackRateMenuButton = /*#__PURE__*/function (_MenuButton) {
-    inheritsLoose(PlaybackRateMenuButton, _MenuButton);
-
-    /**
-     * Creates an instance of this class.
-     *
-     * @param {Player} player
-     *        The `Player` that this class should be attached to.
-     *
-     * @param {Object} [options]
-     *        The key/value store of player options.
-     */
-    function PlaybackRateMenuButton(player, options) {
-      var _this;
-
-      _this = _MenuButton.call(this, player, options) || this;
-
-      _this.menuButton_.el_.setAttribute('aria-describedby', _this.labelElId_);
-
-      _this.updateVisibility();
-
-      _this.updateLabel();
-
-      _this.on(player, 'loadstart', function (e) {
-        return _this.updateVisibility(e);
-      });
-
-      _this.on(player, 'ratechange', function (e) {
-        return _this.updateLabel(e);
-      });
-
-      _this.on(player, 'playbackrateschange', function (e) {
-        return _this.handlePlaybackRateschange(e);
-      });
-
-      return _this;
-    }
-    /**
-     * Create the `Component`'s DOM element
-     *
-     * @return {Element}
-     *         The element that was created.
-     */
-
-
-    var _proto = PlaybackRateMenuButton.prototype;
-
-    _proto.createEl = function createEl$1() {
-      var el = _MenuButton.prototype.createEl.call(this);
-
-      this.labelElId_ = 'vjs-playback-rate-value-label-' + this.id_;
-      this.labelEl_ = createEl('div', {
-        className: 'vjs-playback-rate-value',
-        id: this.labelElId_,
-        textContent: '1x'
-      });
-      el.appendChild(this.labelEl_);
-      return el;
-    };
-
-    _proto.dispose = function dispose() {
-      this.labelEl_ = null;
-
-      _MenuButton.prototype.dispose.call(this);
-    }
-    /**
-     * Builds the default DOM `className`.
-     *
-     * @return {string}
-     *         The DOM `className` for this object.
-     */
-    ;
-
-    _proto.buildCSSClass = function buildCSSClass() {
-      return "vjs-playback-rate " + _MenuButton.prototype.buildCSSClass.call(this);
-    };
-
-    _proto.buildWrapperCSSClass = function buildWrapperCSSClass() {
-      return "vjs-playback-rate " + _MenuButton.prototype.buildWrapperCSSClass.call(this);
-    }
-    /**
-     * Create the list of menu items. Specific to each subclass.
-     *
-     */
-    ;
-
-    _proto.createItems = function createItems() {
-      var rates = this.playbackRates();
-      var items = [];
-
-      for (var i = rates.length - 1; i >= 0; i--) {
-        items.push(new PlaybackRateMenuItem(this.player(), {
-          rate: rates[i] + 'x'
-        }));
-      }
-
-      return items;
-    }
-    /**
-     * Updates ARIA accessibility attributes
-     */
-    ;
-
-    _proto.updateARIAAttributes = function updateARIAAttributes() {
-      // Current playback rate
-      this.el().setAttribute('aria-valuenow', this.player().playbackRate());
-    }
-    /**
-     * This gets called when an `PlaybackRateMenuButton` is "clicked". See
-     * {@link ClickableComponent} for more detailed information on what a click can be.
-     *
-     * @param {EventTarget~Event} [event]
-     *        The `keydown`, `tap`, or `click` event that caused this function to be
-     *        called.
-     *
-     * @listens tap
-     * @listens click
-     */
-    ;
-
-    _proto.handleClick = function handleClick(event) {
-      // select next rate option
-      var currentRate = this.player().playbackRate();
-      var rates = this.playbackRates();
-      var currentIndex = rates.indexOf(currentRate); // this get the next rate and it will select first one if the last one currently selected
-
-      var newIndex = (currentIndex + 1) % rates.length;
-      this.player().playbackRate(rates[newIndex]);
-    }
-    /**
-     * On playbackrateschange, update the menu to account for the new items.
-     *
-     * @listens Player#playbackrateschange
-     */
-    ;
-
-    _proto.handlePlaybackRateschange = function handlePlaybackRateschange(event) {
-      this.update();
-    }
-    /**
-     * Get possible playback rates
-     *
-     * @return {Array}
-     *         All possible playback rates
-     */
-    ;
-
-    _proto.playbackRates = function playbackRates() {
-      var player = this.player();
-      return player.playbackRates && player.playbackRates() || [];
-    }
-    /**
-     * Get whether playback rates is supported by the tech
-     * and an array of playback rates exists
-     *
-     * @return {boolean}
-     *         Whether changing playback rate is supported
-     */
-    ;
-
-    _proto.playbackRateSupported = function playbackRateSupported() {
-      return this.player().tech_ && this.player().tech_.featuresPlaybackRate && this.playbackRates() && this.playbackRates().length > 0;
-    }
-    /**
-     * Hide playback rate controls when they're no playback rate options to select
-     *
-     * @param {EventTarget~Event} [event]
-     *        The event that caused this function to run.
-     *
-     * @listens Player#loadstart
-     */
-    ;
-
-    _proto.updateVisibility = function updateVisibility(event) {
-      if (this.playbackRateSupported()) {
-        this.removeClass('vjs-hidden');
-      } else {
-        this.addClass('vjs-hidden');
-      }
-    }
-    /**
-     * Update button label when rate changed
-     *
-     * @param {EventTarget~Event} [event]
-     *        The event that caused this function to run.
-     *
-     * @listens Player#ratechange
-     */
-    ;
-
-    _proto.updateLabel = function updateLabel(event) {
-      if (this.playbackRateSupported()) {
-        this.labelEl_.textContent = this.player().playbackRate() + 'x';
-      }
-    };
-
-    return PlaybackRateMenuButton;
-  }(MenuButton);
-  /**
-   * The text that should display over the `FullscreenToggle`s controls. Added for localization.
-   *
-   * @type {string}
-   * @private
-   */
-
-
-  PlaybackRateMenuButton.prototype.controlText_ = 'Playback Rate';
-  Component$1.registerComponent('PlaybackRateMenuButton', PlaybackRateMenuButton);
-
-  /**
-   * Just an empty spacer element that can be used as an append point for plugins, etc.
-   * Also can be used to create space between elements when necessary.
-   *
-   * @extends Component
-   */
-
-  var Spacer = /*#__PURE__*/function (_Component) {
-    inheritsLoose(Spacer, _Component);
-
-    function Spacer() {
-      return _Component.apply(this, arguments) || this;
-    }
-
-    var _proto = Spacer.prototype;
-
-    /**
-    * Builds the default DOM `className`.
-    *
-    * @return {string}
-    *         The DOM `className` for this object.
-    */
-    _proto.buildCSSClass = function buildCSSClass() {
-      return "vjs-spacer " + _Component.prototype.buildCSSClass.call(this);
-    }
-    /**
-     * Create the `Component`'s DOM element
-     *
-     * @return {Element}
-     *         The element that was created.
-     */
-    ;
-
-    _proto.createEl = function createEl(tag, props, attributes) {
-      if (tag === void 0) {
-        tag = 'div';
-      }
-
-      if (props === void 0) {
-        props = {};
-      }
-
-      if (attributes === void 0) {
-        attributes = {};
-      }
-
-      if (!props.className) {
-        props.className = this.buildCSSClass();
-      }
-
-      return _Component.prototype.createEl.call(this, tag, props, attributes);
-    };
-
-    return Spacer;
-  }(Component$1);
-
-  Component$1.registerComponent('Spacer', Spacer);
-
-  /**
-   * Spacer specifically meant to be used as an insertion point for new plugins, etc.
-   *
-   * @extends Spacer
-   */
-
-  var CustomControlSpacer = /*#__PURE__*/function (_Spacer) {
-    inheritsLoose(CustomControlSpacer, _Spacer);
-
-    function CustomControlSpacer() {
-      return _Spacer.apply(this, arguments) || this;
-    }
-
-    var _proto = CustomControlSpacer.prototype;
-
-    /**
-     * Builds the default DOM `className`.
-     *
-     * @return {string}
-     *         The DOM `className` for this object.
-     */
-    _proto.buildCSSClass = function buildCSSClass() {
-      return "vjs-custom-control-spacer " + _Spacer.prototype.buildCSSClass.call(this);
-    }
-    /**
-     * Create the `Component`'s DOM element
-     *
-     * @return {Element}
-     *         The element that was created.
-     */
-    ;
-
-    _proto.createEl = function createEl() {
-      return _Spacer.prototype.createEl.call(this, 'div', {
-        className: this.buildCSSClass(),
-        // No-flex/table-cell mode requires there be some content
-        // in the cell to fill the remaining space of the table.
-        textContent: "\xA0"
-      });
-    };
-
-    return CustomControlSpacer;
-  }(Spacer);
-
-  Component$1.registerComponent('CustomControlSpacer', CustomControlSpacer);
-
-  /**
-   * Container of main controls.
-   *
-   * @extends Component
-   */
-
-  var ControlBar = /*#__PURE__*/function (_Component) {
-    inheritsLoose(ControlBar, _Component);
-
-    function ControlBar() {
-      return _Component.apply(this, arguments) || this;
-    }
-
-    var _proto = ControlBar.prototype;
-
-    /**
-     * Create the `Component`'s DOM element
-     *
-     * @return {Element}
-     *         The element that was created.
-     */
-    _proto.createEl = function createEl() {
-      return _Component.prototype.createEl.call(this, 'div', {
-        className: 'vjs-control-bar',
-        dir: 'ltr'
-      });
-    };
-
-    return ControlBar;
-  }(Component$1);
-  /**
-   * Default options for `ControlBar`
-   *
-   * @type {Object}
-   * @private
-   */
-
-
-  ControlBar.prototype.options_ = {
-    children: ['playToggle', 'volumePanel', 'currentTimeDisplay', 'timeDivider', 'durationDisplay', 'progressControl', 'liveDisplay', 'seekToLive', 'remainingTimeDisplay', 'customControlSpacer', 'playbackRateMenuButton', 'chaptersButton', 'descriptionsButton', 'subsCapsButton', 'audioTrackButton', 'fullscreenToggle']
-  };
-
-  if ('exitPictureInPicture' in document) {
-    ControlBar.prototype.options_.children.splice(ControlBar.prototype.options_.children.length - 1, 0, 'pictureInPictureToggle');
-  }
-
-  Component$1.registerComponent('ControlBar', ControlBar);
-
-  /**
-   * A display that indicates an error has occurred. This means that the video
-   * is unplayable.
-   *
-   * @extends ModalDialog
-   */
-
-  var ErrorDisplay = /*#__PURE__*/function (_ModalDialog) {
-    inheritsLoose(ErrorDisplay, _ModalDialog);
-
-    /**
-     * Creates an instance of this class.
-     *
-     * @param  {Player} player
-     *         The `Player` that this class should be attached to.
-     *
-     * @param  {Object} [options]
-     *         The key/value store of player options.
-     */
-    function ErrorDisplay(player, options) {
-      var _this;
-
-      _this = _ModalDialog.call(this, player, options) || this;
-
-      _this.on(player, 'error', function (e) {
-        return _this.open(e);
-      });
-
-      return _this;
-    }
-    /**
-     * Builds the default DOM `className`.
-     *
-     * @return {string}
-     *         The DOM `className` for this object.
-     *
-     * @deprecated Since version 5.
-     */
-
-
-    var _proto = ErrorDisplay.prototype;
-
-    _proto.buildCSSClass = function buildCSSClass() {
-      return "vjs-error-display " + _ModalDialog.prototype.buildCSSClass.call(this);
-    }
-    /**
-     * Gets the localized error message based on the `Player`s error.
-     *
-     * @return {string}
-     *         The `Player`s error message localized or an empty string.
-     */
-    ;
-
-    _proto.content = function content() {
-      var error = this.player().error();
-      return error ? this.localize(error.message) : '';
-    };
-
-    return ErrorDisplay;
-  }(ModalDialog);
-  /**
-   * The default options for an `ErrorDisplay`.
-   *
-   * @private
-   */
-
-
-  ErrorDisplay.prototype.options_ = _extends_1({}, ModalDialog.prototype.options_, {
-    pauseOnOpen: false,
-    fillAlways: true,
-    temporary: false,
-    uncloseable: true
-  });
-  Component$1.registerComponent('ErrorDisplay', ErrorDisplay);
-
-  var LOCAL_STORAGE_KEY$1 = 'vjs-text-track-settings';
-  var COLOR_BLACK = ['#000', 'Black'];
-  var COLOR_BLUE = ['#00F', 'Blue'];
-  var COLOR_CYAN = ['#0FF', 'Cyan'];
-  var COLOR_GREEN = ['#0F0', 'Green'];
-  var COLOR_MAGENTA = ['#F0F', 'Magenta'];
-  var COLOR_RED = ['#F00', 'Red'];
-  var COLOR_WHITE = ['#FFF', 'White'];
-  var COLOR_YELLOW = ['#FF0', 'Yellow'];
-  var OPACITY_OPAQUE = ['1', 'Opaque'];
-  var OPACITY_SEMI = ['0.5', 'Semi-Transparent'];
-  var OPACITY_TRANS = ['0', 'Transparent']; // Configuration for the various <select> elements in the DOM of this component.
-  //
-  // Possible keys include:
-  //
-  // `default`:
-  //   The default option index. Only needs to be provided if not zero.
-  // `parser`:
-  //   A function which is used to parse the value from the selected option in
-  //   a customized way.
-  // `selector`:
-  //   The selector used to find the associated <select> element.
-
-  var selectConfigs = {
-    backgroundColor: {
-      selector: '.vjs-bg-color > select',
-      id: 'captions-background-color-%s',
-      label: 'Color',
-      options: [COLOR_BLACK, COLOR_WHITE, COLOR_RED, COLOR_GREEN, COLOR_BLUE, COLOR_YELLOW, COLOR_MAGENTA, COLOR_CYAN]
-    },
-    backgroundOpacity: {
-      selector: '.vjs-bg-opacity > select',
-      id: 'captions-background-opacity-%s',
-      label: 'Transparency',
-      options: [OPACITY_OPAQUE, OPACITY_SEMI, OPACITY_TRANS]
-    },
-    color: {
-      selector: '.vjs-fg-color > select',
-      id: 'captions-foreground-color-%s',
-      label: 'Color',
-      options: [COLOR_WHITE, COLOR_BLACK, COLOR_RED, COLOR_GREEN, COLOR_BLUE, COLOR_YELLOW, COLOR_MAGENTA, COLOR_CYAN]
-    },
-    edgeStyle: {
-      selector: '.vjs-edge-style > select',
-      id: '%s',
-      label: 'Text Edge Style',
-      options: [['none', 'None'], ['raised', 'Raised'], ['depressed', 'Depressed'], ['uniform', 'Uniform'], ['dropshadow', 'Dropshadow']]
-    },
-    fontFamily: {
-      selector: '.vjs-font-family > select',
-      id: 'captions-font-family-%s',
-      label: 'Font Family',
-      options: [['proportionalSansSerif', 'Proportional Sans-Serif'], ['monospaceSansSerif', 'Monospace Sans-Serif'], ['proportionalSerif', 'Proportional Serif'], ['monospaceSerif', 'Monospace Serif'], ['casual', 'Casual'], ['script', 'Script'], ['small-caps', 'Small Caps']]
-    },
-    fontPercent: {
-      selector: '.vjs-font-percent > select',
-      id: 'captions-font-size-%s',
-      label: 'Font Size',
-      options: [['0.50', '50%'], ['0.75', '75%'], ['1.00', '100%'], ['1.25', '125%'], ['1.50', '150%'], ['1.75', '175%'], ['2.00', '200%'], ['3.00', '300%'], ['4.00', '400%']],
-      "default": 2,
-      parser: function parser(v) {
-        return v === '1.00' ? null : Number(v);
-      }
-    },
-    textOpacity: {
-      selector: '.vjs-text-opacity > select',
-      id: 'captions-foreground-opacity-%s',
-      label: 'Transparency',
-      options: [OPACITY_OPAQUE, OPACITY_SEMI]
-    },
-    // Options for this object are defined below.
-    windowColor: {
-      selector: '.vjs-window-color > select',
-      id: 'captions-window-color-%s',
-      label: 'Color'
-    },
-    // Options for this object are defined below.
-    windowOpacity: {
-      selector: '.vjs-window-opacity > select',
-      id: 'captions-window-opacity-%s',
-      label: 'Transparency',
-      options: [OPACITY_TRANS, OPACITY_SEMI, OPACITY_OPAQUE]
-    }
-  };
-  selectConfigs.windowColor.options = selectConfigs.backgroundColor.options;
-  /**
-   * Get the actual value of an option.
-   *
-   * @param  {string} value
-   *         The value to get
-   *
-   * @param  {Function} [parser]
-   *         Optional function to adjust the value.
-   *
-   * @return {Mixed}
-   *         - Will be `undefined` if no value exists
-   *         - Will be `undefined` if the given value is "none".
-   *         - Will be the actual value otherwise.
-   *
-   * @private
-   */
-
-  function parseOptionValue(value, parser) {
-    if (parser) {
-      value = parser(value);
-    }
-
-    if (value && value !== 'none') {
-      return value;
-    }
-  }
-  /**
-   * Gets the value of the selected <option> element within a <select> element.
-   *
-   * @param  {Element} el
-   *         the element to look in
-   *
-   * @param  {Function} [parser]
-   *         Optional function to adjust the value.
-   *
-   * @return {Mixed}
-   *         - Will be `undefined` if no value exists
-   *         - Will be `undefined` if the given value is "none".
-   *         - Will be the actual value otherwise.
-   *
-   * @private
-   */
-
-
-  function getSelectedOptionValue(el, parser) {
-    var value = el.options[el.options.selectedIndex].value;
-    return parseOptionValue(value, parser);
-  }
-  /**
-   * Sets the selected <option> element within a <select> element based on a
-   * given value.
-   *
-   * @param {Element} el
-   *        The element to look in.
-   *
-   * @param {string} value
-   *        the property to look on.
-   *
-   * @param {Function} [parser]
-   *        Optional function to adjust the value before comparing.
-   *
-   * @private
-   */
-
-
-  function setSelectedOption(el, value, parser) {
-    if (!value) {
-      return;
-    }
-
-    for (var i = 0; i < el.options.length; i++) {
-      if (parseOptionValue(el.options[i].value, parser) === value) {
-        el.selectedIndex = i;
-        break;
-      }
-    }
-  }
-  /**
-   * Manipulate Text Tracks settings.
-   *
-   * @extends ModalDialog
-   */
-
-
-  var TextTrackSettings = /*#__PURE__*/function (_ModalDialog) {
-    inheritsLoose(TextTrackSettings, _ModalDialog);
-
-    /**
-     * Creates an instance of this class.
-     *
-     * @param {Player} player
-     *         The `Player` that this class should be attached to.
-     *
-     * @param {Object} [options]
-     *         The key/value store of player options.
-     */
-    function TextTrackSettings(player, options) {
-      var _this;
-
-      options.temporary = false;
-      _this = _ModalDialog.call(this, player, options) || this;
-      _this.updateDisplay = _this.updateDisplay.bind(assertThisInitialized(_this)); // fill the modal and pretend we have opened it
-
-      _this.fill();
-
-      _this.hasBeenOpened_ = _this.hasBeenFilled_ = true;
-      _this.endDialog = createEl('p', {
-        className: 'vjs-control-text',
-        textContent: _this.localize('End of dialog window.')
-      });
-
-      _this.el().appendChild(_this.endDialog);
-
-      _this.setDefaults(); // Grab `persistTextTrackSettings` from the player options if not passed in child options
-
-
-      if (options.persistTextTrackSettings === undefined) {
-        _this.options_.persistTextTrackSettings = _this.options_.playerOptions.persistTextTrackSettings;
-      }
-
-      _this.on(_this.$('.vjs-done-button'), 'click', function () {
-        _this.saveSettings();
-
-        _this.close();
-      });
-
-      _this.on(_this.$('.vjs-default-button'), 'click', function () {
-        _this.setDefaults();
-
-        _this.updateDisplay();
-      });
-
-      each(selectConfigs, function (config) {
-        _this.on(_this.$(config.selector), 'change', _this.updateDisplay);
-      });
-
-      if (_this.options_.persistTextTrackSettings) {
-        _this.restoreSettings();
-      }
-
-      return _this;
-    }
-
-    var _proto = TextTrackSettings.prototype;
-
-    _proto.dispose = function dispose() {
-      this.endDialog = null;
-
-      _ModalDialog.prototype.dispose.call(this);
-    }
-    /**
-     * Create a <select> element with configured options.
-     *
-     * @param {string} key
-     *        Configuration key to use during creation.
-     *
-     * @return {string}
-     *         An HTML string.
-     *
-     * @private
-     */
-    ;
-
-    _proto.createElSelect_ = function createElSelect_(key, legendId, type) {
-      var _this2 = this;
-
-      if (legendId === void 0) {
-        legendId = '';
-      }
-
-      if (type === void 0) {
-        type = 'label';
-      }
-
-      var config = selectConfigs[key];
-      var id = config.id.replace('%s', this.id_);
-      var selectLabelledbyIds = [legendId, id].join(' ').trim();
-      return ["<" + type + " id=\"" + id + "\" class=\"" + (type === 'label' ? 'vjs-label' : '') + "\">", this.localize(config.label), "</" + type + ">", "<select aria-labelledby=\"" + selectLabelledbyIds + "\">"].concat(config.options.map(function (o) {
-        var optionId = id + '-' + o[1].replace(/\W+/g, '');
-        return ["<option id=\"" + optionId + "\" value=\"" + o[0] + "\" ", "aria-labelledby=\"" + selectLabelledbyIds + " " + optionId + "\">", _this2.localize(o[1]), '</option>'].join('');
-      })).concat('</select>').join('');
-    }
-    /**
-     * Create foreground color element for the component
-     *
-     * @return {string}
-     *         An HTML string.
-     *
-     * @private
-     */
-    ;
-
-    _proto.createElFgColor_ = function createElFgColor_() {
-      var legendId = "captions-text-legend-" + this.id_;
-      return ['<fieldset class="vjs-fg-color vjs-track-setting">', "<legend id=\"" + legendId + "\">", this.localize('Text'), '</legend>', this.createElSelect_('color', legendId), '<span class="vjs-text-opacity vjs-opacity">', this.createElSelect_('textOpacity', legendId), '</span>', '</fieldset>'].join('');
-    }
-    /**
-     * Create background color element for the component
-     *
-     * @return {string}
-     *         An HTML string.
-     *
-     * @private
-     */
-    ;
-
-    _proto.createElBgColor_ = function createElBgColor_() {
-      var legendId = "captions-background-" + this.id_;
-      return ['<fieldset class="vjs-bg-color vjs-track-setting">', "<legend id=\"" + legendId + "\">", this.localize('Background'), '</legend>', this.createElSelect_('backgroundColor', legendId), '<span class="vjs-bg-opacity vjs-opacity">', this.createElSelect_('backgroundOpacity', legendId), '</span>', '</fieldset>'].join('');
-    }
-    /**
-     * Create window color element for the component
-     *
-     * @return {string}
-     *         An HTML string.
-     *
-     * @private
-     */
-    ;
-
-    _proto.createElWinColor_ = function createElWinColor_() {
-      var legendId = "captions-window-" + this.id_;
-      return ['<fieldset class="vjs-window-color vjs-track-setting">', "<legend id=\"" + legendId + "\">", this.localize('Window'), '</legend>', this.createElSelect_('windowColor', legendId), '<span class="vjs-window-opacity vjs-opacity">', this.createElSelect_('windowOpacity', legendId), '</span>', '</fieldset>'].join('');
-    }
-    /**
-     * Create color elements for the component
-     *
-     * @return {Element}
-     *         The element that was created
-     *
-     * @private
-     */
-    ;
-
-    _proto.createElColors_ = function createElColors_() {
-      return createEl('div', {
-        className: 'vjs-track-settings-colors',
-        innerHTML: [this.createElFgColor_(), this.createElBgColor_(), this.createElWinColor_()].join('')
-      });
-    }
-    /**
-     * Create font elements for the component
-     *
-     * @return {Element}
-     *         The element that was created.
-     *
-     * @private
-     */
-    ;
-
-    _proto.createElFont_ = function createElFont_() {
-      return createEl('div', {
-        className: 'vjs-track-settings-font',
-        innerHTML: ['<fieldset class="vjs-font-percent vjs-track-setting">', this.createElSelect_('fontPercent', '', 'legend'), '</fieldset>', '<fieldset class="vjs-edge-style vjs-track-setting">', this.createElSelect_('edgeStyle', '', 'legend'), '</fieldset>', '<fieldset class="vjs-font-family vjs-track-setting">', this.createElSelect_('fontFamily', '', 'legend'), '</fieldset>'].join('')
-      });
-    }
-    /**
-     * Create controls for the component
-     *
-     * @return {Element}
-     *         The element that was created.
-     *
-     * @private
-     */
-    ;
-
-    _proto.createElControls_ = function createElControls_() {
-      var defaultsDescription = this.localize('restore all settings to the default values');
-      return createEl('div', {
-        className: 'vjs-track-settings-controls',
-        innerHTML: ["<button type=\"button\" class=\"vjs-default-button\" title=\"" + defaultsDescription + "\">", this.localize('Reset'), "<span class=\"vjs-control-text\"> " + defaultsDescription + "</span>", '</button>', "<button type=\"button\" class=\"vjs-done-button\">" + this.localize('Done') + "</button>"].join('')
-      });
-    };
-
-    _proto.content = function content() {
-      return [this.createElColors_(), this.createElFont_(), this.createElControls_()];
-    };
-
-    _proto.label = function label() {
-      return this.localize('Caption Settings Dialog');
-    };
-
-    _proto.description = function description() {
-      return this.localize('Beginning of dialog window. Escape will cancel and close the window.');
-    };
-
-    _proto.buildCSSClass = function buildCSSClass() {
-      return _ModalDialog.prototype.buildCSSClass.call(this) + ' vjs-text-track-settings';
-    }
-    /**
-     * Gets an object of text track settings (or null).
-     *
-     * @return {Object}
-     *         An object with config values parsed from the DOM or localStorage.
-     */
-    ;
-
-    _proto.getValues = function getValues() {
-      var _this3 = this;
-
-      return reduce(selectConfigs, function (accum, config, key) {
-        var value = getSelectedOptionValue(_this3.$(config.selector), config.parser);
-
-        if (value !== undefined) {
-          accum[key] = value;
-        }
-
-        return accum;
-      }, {});
-    }
-    /**
-     * Sets text track settings from an object of values.
-     *
-     * @param {Object} values
-     *        An object with config values parsed from the DOM or localStorage.
-     */
-    ;
-
-    _proto.setValues = function setValues(values) {
-      var _this4 = this;
-
-      each(selectConfigs, function (config, key) {
-        setSelectedOption(_this4.$(config.selector), values[key], config.parser);
-      });
-    }
-    /**
-     * Sets all `<select>` elements to their default values.
-     */
-    ;
-
-    _proto.setDefaults = function setDefaults() {
-      var _this5 = this;
-
-      each(selectConfigs, function (config) {
-        var index = config.hasOwnProperty('default') ? config["default"] : 0;
-        _this5.$(config.selector).selectedIndex = index;
-      });
-    }
-    /**
-     * Restore texttrack settings from localStorage
-     */
-    ;
-
-    _proto.restoreSettings = function restoreSettings() {
-      var values;
-
-      try {
-        values = JSON.parse(window.localStorage.getItem(LOCAL_STORAGE_KEY$1));
-      } catch (err) {
-        log$1.warn(err);
-      }
-
-      if (values) {
-        this.setValues(values);
-      }
-    }
-    /**
-     * Save text track settings to localStorage
-     */
-    ;
-
-    _proto.saveSettings = function saveSettings() {
-      if (!this.options_.persistTextTrackSettings) {
-        return;
-      }
-
-      var values = this.getValues();
-
-      try {
-        if (Object.keys(values).length) {
-          window.localStorage.setItem(LOCAL_STORAGE_KEY$1, JSON.stringify(values));
-        } else {
-          window.localStorage.removeItem(LOCAL_STORAGE_KEY$1);
-        }
-      } catch (err) {
-        log$1.warn(err);
-      }
-    }
-    /**
-     * Update display of text track settings
-     */
-    ;
-
-    _proto.updateDisplay = function updateDisplay() {
-      var ttDisplay = this.player_.getChild('textTrackDisplay');
-
-      if (ttDisplay) {
-        ttDisplay.updateDisplay();
-      }
-    }
-    /**
-     * conditionally blur the element and refocus the captions button
-     *
-     * @private
-     */
-    ;
-
-    _proto.conditionalBlur_ = function conditionalBlur_() {
-      this.previouslyActiveEl_ = null;
-      var cb = this.player_.controlBar;
-      var subsCapsBtn = cb && cb.subsCapsButton;
-      var ccBtn = cb && cb.captionsButton;
-
-      if (subsCapsBtn) {
-        subsCapsBtn.focus();
-      } else if (ccBtn) {
-        ccBtn.focus();
-      }
-    };
-
-    return TextTrackSettings;
-  }(ModalDialog);
-
-  Component$1.registerComponent('TextTrackSettings', TextTrackSettings);
-
-  /**
-   * A Resize Manager. It is in charge of triggering `playerresize` on the player in the right conditions.
-   *
-   * It'll either create an iframe and use a debounced resize handler on it or use the new {@link https://wicg.github.io/ResizeObserver/|ResizeObserver}.
-   *
-   * If the ResizeObserver is available natively, it will be used. A polyfill can be passed in as an option.
-   * If a `playerresize` event is not needed, the ResizeManager component can be removed from the player, see the example below.
-   * @example <caption>How to disable the resize manager</caption>
-   * const player = videojs('#vid', {
-   *   resizeManager: false
-   * });
-   *
-   * @see {@link https://wicg.github.io/ResizeObserver/|ResizeObserver specification}
-   *
-   * @extends Component
-   */
-
-  var ResizeManager = /*#__PURE__*/function (_Component) {
-    inheritsLoose(ResizeManager, _Component);
-
-    /**
-     * Create the ResizeManager.
-     *
-     * @param {Object} player
-     *        The `Player` that this class should be attached to.
-     *
-     * @param {Object} [options]
-     *        The key/value store of ResizeManager options.
-     *
-     * @param {Object} [options.ResizeObserver]
-     *        A polyfill for ResizeObserver can be passed in here.
-     *        If this is set to null it will ignore the native ResizeObserver and fall back to the iframe fallback.
-     */
-    function ResizeManager(player, options) {
-      var _this;
-
-      var RESIZE_OBSERVER_AVAILABLE = options.ResizeObserver || window.ResizeObserver; // if `null` was passed, we want to disable the ResizeObserver
-
-      if (options.ResizeObserver === null) {
-        RESIZE_OBSERVER_AVAILABLE = false;
-      } // Only create an element when ResizeObserver isn't available
-
-
-      var options_ = mergeOptions$3({
-        createEl: !RESIZE_OBSERVER_AVAILABLE,
-        reportTouchActivity: false
-      }, options);
-      _this = _Component.call(this, player, options_) || this;
-      _this.ResizeObserver = options.ResizeObserver || window.ResizeObserver;
-      _this.loadListener_ = null;
-      _this.resizeObserver_ = null;
-      _this.debouncedHandler_ = debounce(function () {
-        _this.resizeHandler();
-      }, 100, false, assertThisInitialized(_this));
-
-      if (RESIZE_OBSERVER_AVAILABLE) {
-        _this.resizeObserver_ = new _this.ResizeObserver(_this.debouncedHandler_);
-
-        _this.resizeObserver_.observe(player.el());
-      } else {
-        _this.loadListener_ = function () {
-          if (!_this.el_ || !_this.el_.contentWindow) {
-            return;
-          }
-
-          var debouncedHandler_ = _this.debouncedHandler_;
-
-          var unloadListener_ = _this.unloadListener_ = function () {
-            off(this, 'resize', debouncedHandler_);
-            off(this, 'unload', unloadListener_);
-            unloadListener_ = null;
-          }; // safari and edge can unload the iframe before resizemanager dispose
-          // we have to dispose of event handlers correctly before that happens
-
-
-          on(_this.el_.contentWindow, 'unload', unloadListener_);
-          on(_this.el_.contentWindow, 'resize', debouncedHandler_);
-        };
-
-        _this.one('load', _this.loadListener_);
-      }
-
-      return _this;
-    }
-
-    var _proto = ResizeManager.prototype;
-
-    _proto.createEl = function createEl() {
-      return _Component.prototype.createEl.call(this, 'iframe', {
-        className: 'vjs-resize-manager',
-        tabIndex: -1,
-        title: this.localize('No content')
-      }, {
-        'aria-hidden': 'true'
-      });
-    }
-    /**
-     * Called when a resize is triggered on the iframe or a resize is observed via the ResizeObserver
-     *
-     * @fires Player#playerresize
-     */
-    ;
-
-    _proto.resizeHandler = function resizeHandler() {
-      /**
-       * Called when the player size has changed
-       *
-       * @event Player#playerresize
-       * @type {EventTarget~Event}
-       */
-      // make sure player is still around to trigger
-      // prevents this from causing an error after dispose
-      if (!this.player_ || !this.player_.trigger) {
-        return;
-      }
-
-      this.player_.trigger('playerresize');
-    };
-
-    _proto.dispose = function dispose() {
-      if (this.debouncedHandler_) {
-        this.debouncedHandler_.cancel();
-      }
-
-      if (this.resizeObserver_) {
-        if (this.player_.el()) {
-          this.resizeObserver_.unobserve(this.player_.el());
-        }
-
-        this.resizeObserver_.disconnect();
-      }
-
-      if (this.loadListener_) {
-        this.off('load', this.loadListener_);
-      }
-
-      if (this.el_ && this.el_.contentWindow && this.unloadListener_) {
-        this.unloadListener_.call(this.el_.contentWindow);
-      }
-
-      this.ResizeObserver = null;
-      this.resizeObserver = null;
-      this.debouncedHandler_ = null;
-      this.loadListener_ = null;
-
-      _Component.prototype.dispose.call(this);
-    };
-
-    return ResizeManager;
-  }(Component$1);
-
-  Component$1.registerComponent('ResizeManager', ResizeManager);
-
-  var defaults = {
-    trackingThreshold: 20,
-    liveTolerance: 15
-  };
-  /*
-    track when we are at the live edge, and other helpers for live playback */
-
-  /**
-   * A class for checking live current time and determining when the player
-   * is at or behind the live edge.
-   */
-
-  var LiveTracker = /*#__PURE__*/function (_Component) {
-    inheritsLoose(LiveTracker, _Component);
-
-    /**
-     * Creates an instance of this class.
-     *
-     * @param {Player} player
-     *        The `Player` that this class should be attached to.
-     *
-     * @param {Object} [options]
-     *        The key/value store of player options.
-     *
-     * @param {number} [options.trackingThreshold=20]
-     *        Number of seconds of live window (seekableEnd - seekableStart) that
-     *        media needs to have before the liveui will be shown.
-     *
-     * @param {number} [options.liveTolerance=15]
-     *        Number of seconds behind live that we have to be
-     *        before we will be considered non-live. Note that this will only
-     *        be used when playing at the live edge. This allows large seekable end
-     *        changes to not effect wether we are live or not.
-     */
-    function LiveTracker(player, options) {
-      var _this;
-
-      // LiveTracker does not need an element
-      var options_ = mergeOptions$3(defaults, options, {
-        createEl: false
-      });
-      _this = _Component.call(this, player, options_) || this;
-
-      _this.handleVisibilityChange_ = function (e) {
-        return _this.handleVisibilityChange(e);
-      };
-
-      _this.trackLiveHandler_ = function () {
-        return _this.trackLive_();
-      };
-
-      _this.handlePlay_ = function (e) {
-        return _this.handlePlay(e);
-      };
-
-      _this.handleFirstTimeupdate_ = function (e) {
-        return _this.handleFirstTimeupdate(e);
-      };
-
-      _this.handleSeeked_ = function (e) {
-        return _this.handleSeeked(e);
-      };
-
-      _this.seekToLiveEdge_ = function (e) {
-        return _this.seekToLiveEdge(e);
-      };
-
-      _this.reset_();
-
-      _this.on(_this.player_, 'durationchange', function (e) {
-        return _this.handleDurationchange(e);
-      }); // we should try to toggle tracking on canplay as native playback engines, like Safari
-      // may not have the proper values for things like seekableEnd until then
-
-
-      _this.on(_this.player_, 'canplay', function () {
-        return _this.toggleTracking();
-      }); // we don't need to track live playback if the document is hidden,
-      // also, tracking when the document is hidden can
-      // cause the CPU to spike and eventually crash the page on IE11.
-
-
-      if (IE_VERSION && 'hidden' in document && 'visibilityState' in document) {
-        _this.on(document, 'visibilitychange', _this.handleVisibilityChange_);
-      }
-
-      return _this;
-    }
-    /**
-     * toggle tracking based on document visiblility
-     */
-
-
-    var _proto = LiveTracker.prototype;
-
-    _proto.handleVisibilityChange = function handleVisibilityChange() {
-      if (this.player_.duration() !== Infinity) {
-        return;
-      }
-
-      if (document.hidden) {
-        this.stopTracking();
-      } else {
-        this.startTracking();
-      }
-    }
-    /**
-     * all the functionality for tracking when seek end changes
-     * and for tracking how far past seek end we should be
-     */
-    ;
-
-    _proto.trackLive_ = function trackLive_() {
-      var seekable = this.player_.seekable(); // skip undefined seekable
-
-      if (!seekable || !seekable.length) {
-        return;
-      }
-
-      var newTime = Number(window.performance.now().toFixed(4));
-      var deltaTime = this.lastTime_ === -1 ? 0 : (newTime - this.lastTime_) / 1000;
-      this.lastTime_ = newTime;
-      this.pastSeekEnd_ = this.pastSeekEnd() + deltaTime;
-      var liveCurrentTime = this.liveCurrentTime();
-      var currentTime = this.player_.currentTime(); // we are behind live if any are true
-      // 1. the player is paused
-      // 2. the user seeked to a location 2 seconds away from live
-      // 3. the difference between live and current time is greater
-      //    liveTolerance which defaults to 15s
-
-      var isBehind = this.player_.paused() || this.seekedBehindLive_ || Math.abs(liveCurrentTime - currentTime) > this.options_.liveTolerance; // we cannot be behind if
-      // 1. until we have not seen a timeupdate yet
-      // 2. liveCurrentTime is Infinity, which happens on Android and Native Safari
-
-      if (!this.timeupdateSeen_ || liveCurrentTime === Infinity) {
-        isBehind = false;
-      }
-
-      if (isBehind !== this.behindLiveEdge_) {
-        this.behindLiveEdge_ = isBehind;
-        this.trigger('liveedgechange');
-      }
-    }
-    /**
-     * handle a durationchange event on the player
-     * and start/stop tracking accordingly.
-     */
-    ;
-
-    _proto.handleDurationchange = function handleDurationchange() {
-      this.toggleTracking();
-    }
-    /**
-     * start/stop tracking
-     */
-    ;
-
-    _proto.toggleTracking = function toggleTracking() {
-      if (this.player_.duration() === Infinity && this.liveWindow() >= this.options_.trackingThreshold) {
-        if (this.player_.options_.liveui) {
-          this.player_.addClass('vjs-liveui');
-        }
-
-        this.startTracking();
-      } else {
-        this.player_.removeClass('vjs-liveui');
-        this.stopTracking();
-      }
-    }
-    /**
-     * start tracking live playback
-     */
-    ;
-
-    _proto.startTracking = function startTracking() {
-      if (this.isTracking()) {
-        return;
-      } // If we haven't seen a timeupdate, we need to check whether playback
-      // began before this component started tracking. This can happen commonly
-      // when using autoplay.
-
-
-      if (!this.timeupdateSeen_) {
-        this.timeupdateSeen_ = this.player_.hasStarted();
-      }
-
-      this.trackingInterval_ = this.setInterval(this.trackLiveHandler_, UPDATE_REFRESH_INTERVAL);
-      this.trackLive_();
-      this.on(this.player_, ['play', 'pause'], this.trackLiveHandler_);
-
-      if (!this.timeupdateSeen_) {
-        this.one(this.player_, 'play', this.handlePlay_);
-        this.one(this.player_, 'timeupdate', this.handleFirstTimeupdate_);
-      } else {
-        this.on(this.player_, 'seeked', this.handleSeeked_);
-      }
-    }
-    /**
-     * handle the first timeupdate on the player if it wasn't already playing
-     * when live tracker started tracking.
-     */
-    ;
-
-    _proto.handleFirstTimeupdate = function handleFirstTimeupdate() {
-      this.timeupdateSeen_ = true;
-      this.on(this.player_, 'seeked', this.handleSeeked_);
-    }
-    /**
-     * Keep track of what time a seek starts, and listen for seeked
-     * to find where a seek ends.
-     */
-    ;
-
-    _proto.handleSeeked = function handleSeeked() {
-      var timeDiff = Math.abs(this.liveCurrentTime() - this.player_.currentTime());
-      this.seekedBehindLive_ = this.nextSeekedFromUser_ && timeDiff > 2;
-      this.nextSeekedFromUser_ = false;
-      this.trackLive_();
-    }
-    /**
-     * handle the first play on the player, and make sure that we seek
-     * right to the live edge.
-     */
-    ;
-
-    _proto.handlePlay = function handlePlay() {
-      this.one(this.player_, 'timeupdate', this.seekToLiveEdge_);
-    }
-    /**
-     * Stop tracking, and set all internal variables to
-     * their initial value.
-     */
-    ;
-
-    _proto.reset_ = function reset_() {
-      this.lastTime_ = -1;
-      this.pastSeekEnd_ = 0;
-      this.lastSeekEnd_ = -1;
-      this.behindLiveEdge_ = true;
-      this.timeupdateSeen_ = false;
-      this.seekedBehindLive_ = false;
-      this.nextSeekedFromUser_ = false;
-      this.clearInterval(this.trackingInterval_);
-      this.trackingInterval_ = null;
-      this.off(this.player_, ['play', 'pause'], this.trackLiveHandler_);
-      this.off(this.player_, 'seeked', this.handleSeeked_);
-      this.off(this.player_, 'play', this.handlePlay_);
-      this.off(this.player_, 'timeupdate', this.handleFirstTimeupdate_);
-      this.off(this.player_, 'timeupdate', this.seekToLiveEdge_);
-    }
-    /**
-     * The next seeked event is from the user. Meaning that any seek
-     * > 2s behind live will be considered behind live for real and
-     * liveTolerance will be ignored.
-     */
-    ;
-
-    _proto.nextSeekedFromUser = function nextSeekedFromUser() {
-      this.nextSeekedFromUser_ = true;
-    }
-    /**
-     * stop tracking live playback
-     */
-    ;
-
-    _proto.stopTracking = function stopTracking() {
-      if (!this.isTracking()) {
-        return;
-      }
-
-      this.reset_();
-      this.trigger('liveedgechange');
-    }
-    /**
-     * A helper to get the player seekable end
-     * so that we don't have to null check everywhere
-     *
-     * @return {number}
-     *         The furthest seekable end or Infinity.
-     */
-    ;
-
-    _proto.seekableEnd = function seekableEnd() {
-      var seekable = this.player_.seekable();
-      var seekableEnds = [];
-      var i = seekable ? seekable.length : 0;
-
-      while (i--) {
-        seekableEnds.push(seekable.end(i));
-      } // grab the furthest seekable end after sorting, or if there are none
-      // default to Infinity
-
-
-      return seekableEnds.length ? seekableEnds.sort()[seekableEnds.length - 1] : Infinity;
-    }
-    /**
-     * A helper to get the player seekable start
-     * so that we don't have to null check everywhere
-     *
-     * @return {number}
-     *         The earliest seekable start or 0.
-     */
-    ;
-
-    _proto.seekableStart = function seekableStart() {
-      var seekable = this.player_.seekable();
-      var seekableStarts = [];
-      var i = seekable ? seekable.length : 0;
-
-      while (i--) {
-        seekableStarts.push(seekable.start(i));
-      } // grab the first seekable start after sorting, or if there are none
-      // default to 0
-
-
-      return seekableStarts.length ? seekableStarts.sort()[0] : 0;
-    }
-    /**
-     * Get the live time window aka
-     * the amount of time between seekable start and
-     * live current time.
-     *
-     * @return {number}
-     *         The amount of seconds that are seekable in
-     *         the live video.
-     */
-    ;
-
-    _proto.liveWindow = function liveWindow() {
-      var liveCurrentTime = this.liveCurrentTime(); // if liveCurrenTime is Infinity then we don't have a liveWindow at all
-
-      if (liveCurrentTime === Infinity) {
-        return 0;
-      }
-
-      return liveCurrentTime - this.seekableStart();
-    }
-    /**
-     * Determines if the player is live, only checks if this component
-     * is tracking live playback or not
-     *
-     * @return {boolean}
-     *         Wether liveTracker is tracking
-     */
-    ;
-
-    _proto.isLive = function isLive() {
-      return this.isTracking();
-    }
-    /**
-     * Determines if currentTime is at the live edge and won't fall behind
-     * on each seekableendchange
-     *
-     * @return {boolean}
-     *         Wether playback is at the live edge
-     */
-    ;
-
-    _proto.atLiveEdge = function atLiveEdge() {
-      return !this.behindLiveEdge();
-    }
-    /**
-     * get what we expect the live current time to be
-     *
-     * @return {number}
-     *         The expected live current time
-     */
-    ;
-
-    _proto.liveCurrentTime = function liveCurrentTime() {
-      return this.pastSeekEnd() + this.seekableEnd();
-    }
-    /**
-     * The number of seconds that have occured after seekable end
-     * changed. This will be reset to 0 once seekable end changes.
-     *
-     * @return {number}
-     *         Seconds past the current seekable end
-     */
-    ;
-
-    _proto.pastSeekEnd = function pastSeekEnd() {
-      var seekableEnd = this.seekableEnd();
-
-      if (this.lastSeekEnd_ !== -1 && seekableEnd !== this.lastSeekEnd_) {
-        this.pastSeekEnd_ = 0;
-      }
-
-      this.lastSeekEnd_ = seekableEnd;
-      return this.pastSeekEnd_;
-    }
-    /**
-     * If we are currently behind the live edge, aka currentTime will be
-     * behind on a seekableendchange
-     *
-     * @return {boolean}
-     *         If we are behind the live edge
-     */
-    ;
-
-    _proto.behindLiveEdge = function behindLiveEdge() {
-      return this.behindLiveEdge_;
-    }
-    /**
-     * Wether live tracker is currently tracking or not.
-     */
-    ;
-
-    _proto.isTracking = function isTracking() {
-      return typeof this.trackingInterval_ === 'number';
-    }
-    /**
-     * Seek to the live edge if we are behind the live edge
-     */
-    ;
-
-    _proto.seekToLiveEdge = function seekToLiveEdge() {
-      this.seekedBehindLive_ = false;
-
-      if (this.atLiveEdge()) {
-        return;
-      }
-
-      this.nextSeekedFromUser_ = false;
-      this.player_.currentTime(this.liveCurrentTime());
-    }
-    /**
-     * Dispose of liveTracker
-     */
-    ;
-
-    _proto.dispose = function dispose() {
-      this.off(document, 'visibilitychange', this.handleVisibilityChange_);
-      this.stopTracking();
-
-      _Component.prototype.dispose.call(this);
-    };
-
-    return LiveTracker;
-  }(Component$1);
-
-  Component$1.registerComponent('LiveTracker', LiveTracker);
-
-  /**
-   * This function is used to fire a sourceset when there is something
-   * similar to `mediaEl.load()` being called. It will try to find the source via
-   * the `src` attribute and then the `<source>` elements. It will then fire `sourceset`
-   * with the source that was found or empty string if we cannot know. If it cannot
-   * find a source then `sourceset` will not be fired.
-   *
-   * @param {Html5} tech
-   *        The tech object that sourceset was setup on
-   *
-   * @return {boolean}
-   *         returns false if the sourceset was not fired and true otherwise.
-   */
-
-  var sourcesetLoad = function sourcesetLoad(tech) {
-    var el = tech.el(); // if `el.src` is set, that source will be loaded.
-
-    if (el.hasAttribute('src')) {
-      tech.triggerSourceset(el.src);
-      return true;
-    }
-    /**
-     * Since there isn't a src property on the media element, source elements will be used for
-     * implementing the source selection algorithm. This happens asynchronously and
-     * for most cases were there is more than one source we cannot tell what source will
-     * be loaded, without re-implementing the source selection algorithm. At this time we are not
-     * going to do that. There are three special cases that we do handle here though:
-     *
-     * 1. If there are no sources, do not fire `sourceset`.
-     * 2. If there is only one `<source>` with a `src` property/attribute that is our `src`
-     * 3. If there is more than one `<source>` but all of them have the same `src` url.
-     *    That will be our src.
-     */
-
-
-    var sources = tech.$$('source');
-    var srcUrls = [];
-    var src = ''; // if there are no sources, do not fire sourceset
-
-    if (!sources.length) {
-      return false;
-    } // only count valid/non-duplicate source elements
-
-
-    for (var i = 0; i < sources.length; i++) {
-      var url = sources[i].src;
-
-      if (url && srcUrls.indexOf(url) === -1) {
-        srcUrls.push(url);
-      }
-    } // there were no valid sources
-
-
-    if (!srcUrls.length) {
-      return false;
-    } // there is only one valid source element url
-    // use that
-
-
-    if (srcUrls.length === 1) {
-      src = srcUrls[0];
-    }
-
-    tech.triggerSourceset(src);
-    return true;
-  };
-  /**
-   * our implementation of an `innerHTML` descriptor for browsers
-   * that do not have one.
-   */
-
-
-  var innerHTMLDescriptorPolyfill = Object.defineProperty({}, 'innerHTML', {
-    get: function get() {
-      return this.cloneNode(true).innerHTML;
-    },
-    set: function set(v) {
-      // make a dummy node to use innerHTML on
-      var dummy = document.createElement(this.nodeName.toLowerCase()); // set innerHTML to the value provided
-
-      dummy.innerHTML = v; // make a document fragment to hold the nodes from dummy
-
-      var docFrag = document.createDocumentFragment(); // copy all of the nodes created by the innerHTML on dummy
-      // to the document fragment
-
-      while (dummy.childNodes.length) {
-        docFrag.appendChild(dummy.childNodes[0]);
-      } // remove content
-
-
-      this.innerText = ''; // now we add all of that html in one by appending the
-      // document fragment. This is how innerHTML does it.
-
-      window.Element.prototype.appendChild.call(this, docFrag); // then return the result that innerHTML's setter would
-
-      return this.innerHTML;
-    }
-  });
-  /**
-   * Get a property descriptor given a list of priorities and the
-   * property to get.
-   */
-
-  var getDescriptor = function getDescriptor(priority, prop) {
-    var descriptor = {};
-
-    for (var i = 0; i < priority.length; i++) {
-      descriptor = Object.getOwnPropertyDescriptor(priority[i], prop);
-
-      if (descriptor && descriptor.set && descriptor.get) {
-        break;
-      }
-    }
-
-    descriptor.enumerable = true;
-    descriptor.configurable = true;
-    return descriptor;
-  };
-
-  var getInnerHTMLDescriptor = function getInnerHTMLDescriptor(tech) {
-    return getDescriptor([tech.el(), window.HTMLMediaElement.prototype, window.Element.prototype, innerHTMLDescriptorPolyfill], 'innerHTML');
-  };
-  /**
-   * Patches browser internal functions so that we can tell synchronously
-   * if a `<source>` was appended to the media element. For some reason this
-   * causes a `sourceset` if the the media element is ready and has no source.
-   * This happens when:
-   * - The page has just loaded and the media element does not have a source.
-   * - The media element was emptied of all sources, then `load()` was called.
-   *
-   * It does this by patching the following functions/properties when they are supported:
-   *
-   * - `append()` - can be used to add a `<source>` element to the media element
-   * - `appendChild()` - can be used to add a `<source>` element to the media element
-   * - `insertAdjacentHTML()` -  can be used to add a `<source>` element to the media element
-   * - `innerHTML` -  can be used to add a `<source>` element to the media element
-   *
-   * @param {Html5} tech
-   *        The tech object that sourceset is being setup on.
-   */
-
-
-  var firstSourceWatch = function firstSourceWatch(tech) {
-    var el = tech.el(); // make sure firstSourceWatch isn't setup twice.
-
-    if (el.resetSourceWatch_) {
-      return;
-    }
-
-    var old = {};
-    var innerDescriptor = getInnerHTMLDescriptor(tech);
-
-    var appendWrapper = function appendWrapper(appendFn) {
-      return function () {
-        for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
-          args[_key] = arguments[_key];
-        }
-
-        var retval = appendFn.apply(el, args);
-        sourcesetLoad(tech);
-        return retval;
-      };
-    };
-
-    ['append', 'appendChild', 'insertAdjacentHTML'].forEach(function (k) {
-      if (!el[k]) {
-        return;
-      } // store the old function
-
-
-      old[k] = el[k]; // call the old function with a sourceset if a source
-      // was loaded
-
-      el[k] = appendWrapper(old[k]);
-    });
-    Object.defineProperty(el, 'innerHTML', mergeOptions$3(innerDescriptor, {
-      set: appendWrapper(innerDescriptor.set)
-    }));
-
-    el.resetSourceWatch_ = function () {
-      el.resetSourceWatch_ = null;
-      Object.keys(old).forEach(function (k) {
-        el[k] = old[k];
-      });
-      Object.defineProperty(el, 'innerHTML', innerDescriptor);
-    }; // on the first sourceset, we need to revert our changes
-
-
-    tech.one('sourceset', el.resetSourceWatch_);
-  };
-  /**
-   * our implementation of a `src` descriptor for browsers
-   * that do not have one.
-   */
-
-
-  var srcDescriptorPolyfill = Object.defineProperty({}, 'src', {
-    get: function get() {
-      if (this.hasAttribute('src')) {
-        return getAbsoluteURL(window.Element.prototype.getAttribute.call(this, 'src'));
-      }
-
-      return '';
-    },
-    set: function set(v) {
-      window.Element.prototype.setAttribute.call(this, 'src', v);
-      return v;
-    }
-  });
-
-  var getSrcDescriptor = function getSrcDescriptor(tech) {
-    return getDescriptor([tech.el(), window.HTMLMediaElement.prototype, srcDescriptorPolyfill], 'src');
-  };
-  /**
-   * setup `sourceset` handling on the `Html5` tech. This function
-   * patches the following element properties/functions:
-   *
-   * - `src` - to determine when `src` is set
-   * - `setAttribute()` - to determine when `src` is set
-   * - `load()` - this re-triggers the source selection algorithm, and can
-   *              cause a sourceset.
-   *
-   * If there is no source when we are adding `sourceset` support or during a `load()`
-   * we also patch the functions listed in `firstSourceWatch`.
-   *
-   * @param {Html5} tech
-   *        The tech to patch
-   */
-
-
-  var setupSourceset = function setupSourceset(tech) {
-    if (!tech.featuresSourceset) {
-      return;
-    }
-
-    var el = tech.el(); // make sure sourceset isn't setup twice.
-
-    if (el.resetSourceset_) {
-      return;
-    }
-
-    var srcDescriptor = getSrcDescriptor(tech);
-    var oldSetAttribute = el.setAttribute;
-    var oldLoad = el.load;
-    Object.defineProperty(el, 'src', mergeOptions$3(srcDescriptor, {
-      set: function set(v) {
-        var retval = srcDescriptor.set.call(el, v); // we use the getter here to get the actual value set on src
-
-        tech.triggerSourceset(el.src);
-        return retval;
-      }
-    }));
-
-    el.setAttribute = function (n, v) {
-      var retval = oldSetAttribute.call(el, n, v);
-
-      if (/src/i.test(n)) {
-        tech.triggerSourceset(el.src);
-      }
-
-      return retval;
-    };
-
-    el.load = function () {
-      var retval = oldLoad.call(el); // if load was called, but there was no source to fire
-      // sourceset on. We have to watch for a source append
-      // as that can trigger a `sourceset` when the media element
-      // has no source
-
-      if (!sourcesetLoad(tech)) {
-        tech.triggerSourceset('');
-        firstSourceWatch(tech);
-      }
-
-      return retval;
-    };
-
-    if (el.currentSrc) {
-      tech.triggerSourceset(el.currentSrc);
-    } else if (!sourcesetLoad(tech)) {
-      firstSourceWatch(tech);
-    }
-
-    el.resetSourceset_ = function () {
-      el.resetSourceset_ = null;
-      el.load = oldLoad;
-      el.setAttribute = oldSetAttribute;
-      Object.defineProperty(el, 'src', srcDescriptor);
-
-      if (el.resetSourceWatch_) {
-        el.resetSourceWatch_();
-      }
-    };
-  };
-
-  /**
-   * Object.defineProperty but "lazy", which means that the value is only set after
-   * it retrieved the first time, rather than being set right away.
-   *
-   * @param {Object} obj the object to set the property on
-   * @param {string} key the key for the property to set
-   * @param {Function} getValue the function used to get the value when it is needed.
-   * @param {boolean} setter wether a setter shoould be allowed or not
-   */
-  var defineLazyProperty = function defineLazyProperty(obj, key, getValue, setter) {
-    if (setter === void 0) {
-      setter = true;
-    }
-
-    var set = function set(value) {
-      return Object.defineProperty(obj, key, {
-        value: value,
-        enumerable: true,
-        writable: true
-      });
-    };
-
-    var options = {
-      configurable: true,
-      enumerable: true,
-      get: function get() {
-        var value = getValue();
-        set(value);
-        return value;
-      }
-    };
-
-    if (setter) {
-      options.set = set;
-    }
-
-    return Object.defineProperty(obj, key, options);
-  };
-
-  /**
-   * HTML5 Media Controller - Wrapper for HTML5 Media API
-   *
-   * @mixes Tech~SourceHandlerAdditions
-   * @extends Tech
-   */
-
-  var Html5 = /*#__PURE__*/function (_Tech) {
-    inheritsLoose(Html5, _Tech);
-
-    /**
-    * Create an instance of this Tech.
-    *
-    * @param {Object} [options]
-    *        The key/value store of player options.
-    *
-    * @param {Component~ReadyCallback} ready
-    *        Callback function to call when the `HTML5` Tech is ready.
-    */
-    function Html5(options, ready) {
-      var _this;
-
-      _this = _Tech.call(this, options, ready) || this;
-      var source = options.source;
-      var crossoriginTracks = false;
-      _this.featuresVideoFrameCallback = _this.featuresVideoFrameCallback && _this.el_.tagName === 'VIDEO'; // Set the source if one is provided
-      // 1) Check if the source is new (if not, we want to keep the original so playback isn't interrupted)
-      // 2) Check to see if the network state of the tag was failed at init, and if so, reset the source
-      // anyway so the error gets fired.
-
-      if (source && (_this.el_.currentSrc !== source.src || options.tag && options.tag.initNetworkState_ === 3)) {
-        _this.setSource(source);
-      } else {
-        _this.handleLateInit_(_this.el_);
-      } // setup sourceset after late sourceset/init
-
-
-      if (options.enableSourceset) {
-        _this.setupSourcesetHandling_();
-      }
-
-      _this.isScrubbing_ = false;
-
-      if (_this.el_.hasChildNodes()) {
-        var nodes = _this.el_.childNodes;
-        var nodesLength = nodes.length;
-        var removeNodes = [];
-
-        while (nodesLength--) {
-          var node = nodes[nodesLength];
-          var nodeName = node.nodeName.toLowerCase();
-
-          if (nodeName === 'track') {
-            if (!_this.featuresNativeTextTracks) {
-              // Empty video tag tracks so the built-in player doesn't use them also.
-              // This may not be fast enough to stop HTML5 browsers from reading the tags
-              // so we'll need to turn off any default tracks if we're manually doing
-              // captions and subtitles. videoElement.textTracks
-              removeNodes.push(node);
-            } else {
-              // store HTMLTrackElement and TextTrack to remote list
-              _this.remoteTextTrackEls().addTrackElement_(node);
-
-              _this.remoteTextTracks().addTrack(node.track);
-
-              _this.textTracks().addTrack(node.track);
-
-              if (!crossoriginTracks && !_this.el_.hasAttribute('crossorigin') && isCrossOrigin(node.src)) {
-                crossoriginTracks = true;
-              }
+            if (!Tech.isTech(tech)) {
+                throw new Error(`Tech ${name} must be a Tech`);
             }
-          }
+            if (!Tech.canPlayType) {
+                throw new Error('Techs must have a static canPlayType method on them');
+            }
+            if (!Tech.canPlaySource) {
+                throw new Error('Techs must have a static canPlaySource method on them');
+            }
+            name = toTitleCase$1(name);
+            Tech.techs_[name] = tech;
+            Tech.techs_[toLowerCase(name)] = tech;
+            if (name !== 'Tech') {
+                // camel case the techName for use in techOrder
+                Tech.defaultTechOrder_.push(name);
+            }
+            return tech;
         }
 
-        for (var i = 0; i < removeNodes.length; i++) {
-          _this.el_.removeChild(removeNodes[i]);
+        /**
+         * Get a `Tech` from the shared list by name.
+         *
+         * @param {string} name
+         *        `camelCase` or `TitleCase` name of the Tech to get
+         *
+         * @return {Tech|undefined}
+         *         The `Tech` or undefined if there was no tech with the name requested.
+         */
+        static getTech(name) {
+            if (!name) {
+                return;
+            }
+            if (Tech.techs_ && Tech.techs_[name]) {
+                return Tech.techs_[name];
+            }
+            name = toTitleCase$1(name);
+            if (window && window.videojs && window.videojs[name]) {
+                log$1.warn(`The ${name} tech was added to the videojs object when it should be registered using videojs.registerTech(name, tech)`);
+                return window.videojs[name];
+            }
         }
-      }
-
-      _this.proxyNativeTracks_();
-
-      if (_this.featuresNativeTextTracks && crossoriginTracks) {
-        log$1.warn('Text Tracks are being loaded from another origin but the crossorigin attribute isn\'t used.\n' + 'This may prevent text tracks from loading.');
-      } // prevent iOS Safari from disabling metadata text tracks during native playback
-
-
-      _this.restoreMetadataTracksInIOSNativePlayer_(); // Determine if native controls should be used
-      // Our goal should be to get the custom controls on mobile solid everywhere
-      // so we can remove this all together. Right now this will block custom
-      // controls on touch enabled laptops like the Chrome Pixel
-
-
-      if ((TOUCH_ENABLED || IS_IPHONE || IS_NATIVE_ANDROID) && options.nativeControlsForTouch === true) {
-        _this.setControls(true);
-      } // on iOS, we want to proxy `webkitbeginfullscreen` and `webkitendfullscreen`
-      // into a `fullscreenchange` event
-
-
-      _this.proxyWebkitFullscreen_();
-
-      _this.triggerReady();
-
-      return _this;
     }
+
     /**
-     * Dispose of `HTML5` media element and remove all tracks.
+     * Get the {@link VideoTrackList}
+     *
+     * @returns {VideoTrackList}
+     * @method Tech.prototype.videoTracks
      */
 
-
-    var _proto = Html5.prototype;
-
-    _proto.dispose = function dispose() {
-      if (this.el_ && this.el_.resetSourceset_) {
-        this.el_.resetSourceset_();
-      }
-
-      Html5.disposeMediaElement(this.el_);
-      this.options_ = null; // tech will handle clearing of the emulated track list
-
-      _Tech.prototype.dispose.call(this);
-    }
     /**
-     * Modify the media element so that we can detect when
-     * the source is changed. Fires `sourceset` just after the source has changed
+     * Get the {@link AudioTrackList}
+     *
+     * @returns {AudioTrackList}
+     * @method Tech.prototype.audioTracks
      */
-    ;
 
-    _proto.setupSourcesetHandling_ = function setupSourcesetHandling_() {
-      setupSourceset(this);
-    }
     /**
-     * When a captions track is enabled in the iOS Safari native player, all other
-     * tracks are disabled (including metadata tracks), which nulls all of their
-     * associated cue points. This will restore metadata tracks to their pre-fullscreen
-     * state in those cases so that cue points are not needlessly lost.
+     * Get the {@link TextTrackList}
+     *
+     * @returns {TextTrackList}
+     * @method Tech.prototype.textTracks
+     */
+
+    /**
+     * Get the remote element {@link TextTrackList}
+     *
+     * @returns {TextTrackList}
+     * @method Tech.prototype.remoteTextTracks
+     */
+
+    /**
+     * Get the remote element {@link HtmlTrackElementList}
+     *
+     * @returns {HtmlTrackElementList}
+     * @method Tech.prototype.remoteTextTrackEls
+     */
+
+    ALL.names.forEach(function (name) {
+        const props = ALL[name];
+        Tech.prototype[props.getterName] = function () {
+            this[props.privateName] = this[props.privateName] || new props.ListClass();
+            return this[props.privateName];
+        };
+    });
+
+    /**
+     * List of associated text tracks
+     *
+     * @type {TextTrackList}
+     * @private
+     * @property Tech#textTracks_
+     */
+
+    /**
+     * List of associated audio tracks.
+     *
+     * @type {AudioTrackList}
+     * @private
+     * @property Tech#audioTracks_
+     */
+
+    /**
+     * List of associated video tracks.
+     *
+     * @type {VideoTrackList}
+     * @private
+     * @property Tech#videoTracks_
+     */
+
+    /**
+     * Boolean indicating whether the `Tech` supports volume control.
+     *
+     * @type {boolean}
+     * @default
+     */
+    Tech.prototype.featuresVolumeControl = true;
+
+    /**
+     * Boolean indicating whether the `Tech` supports muting volume.
+     *
+     * @type {boolean}
+     * @default
+     */
+    Tech.prototype.featuresMuteControl = true;
+
+    /**
+     * Boolean indicating whether the `Tech` supports fullscreen resize control.
+     * Resizing plugins using request fullscreen reloads the plugin
+     *
+     * @type {boolean}
+     * @default
+     */
+    Tech.prototype.featuresFullscreenResize = false;
+
+    /**
+     * Boolean indicating whether the `Tech` supports changing the speed at which the video
+     * plays. Examples:
+     *   - Set player to play 2x (twice) as fast
+     *   - Set player to play 0.5x (half) as fast
+     *
+     * @type {boolean}
+     * @default
+     */
+    Tech.prototype.featuresPlaybackRate = false;
+
+    /**
+     * Boolean indicating whether the `Tech` supports the `progress` event.
+     * This will be used to determine if {@link Tech#manualProgressOn} should be called.
+     *
+     * @type {boolean}
+     * @default
+     */
+    Tech.prototype.featuresProgressEvents = false;
+
+    /**
+     * Boolean indicating whether the `Tech` supports the `sourceset` event.
+     *
+     * A tech should set this to `true` and then use {@link Tech#triggerSourceset}
+     * to trigger a {@link Tech#event:sourceset} at the earliest time after getting
+     * a new source.
+     *
+     * @type {boolean}
+     * @default
+     */
+    Tech.prototype.featuresSourceset = false;
+
+    /**
+     * Boolean indicating whether the `Tech` supports the `timeupdate` event.
+     * This will be used to determine if {@link Tech#manualTimeUpdates} should be called.
+     *
+     * @type {boolean}
+     * @default
+     */
+    Tech.prototype.featuresTimeupdateEvents = false;
+
+    /**
+     * Boolean indicating whether the `Tech` supports the native `TextTrack`s.
+     * This will help us integrate with native `TextTrack`s if the browser supports them.
+     *
+     * @type {boolean}
+     * @default
+     */
+    Tech.prototype.featuresNativeTextTracks = false;
+
+    /**
+     * Boolean indicating whether the `Tech` supports `requestVideoFrameCallback`.
+     *
+     * @type {boolean}
+     * @default
+     */
+    Tech.prototype.featuresVideoFrameCallback = false;
+
+    /**
+     * A functional mixin for techs that want to use the Source Handler pattern.
+     * Source handlers are scripts for handling specific formats.
+     * The source handler pattern is used for adaptive formats (HLS, DASH) that
+     * manually load video data and feed it into a Source Buffer (Media Source Extensions)
+     * Example: `Tech.withSourceHandlers.call(MyTech);`
+     *
+     * @param {Tech} _Tech
+     *        The tech to add source handler functions to.
+     *
+     * @mixes Tech~SourceHandlerAdditions
+     */
+    Tech.withSourceHandlers = function (_Tech) {
+        /**
+         * Register a source handler
+         *
+         * @param {Function} handler
+         *        The source handler class
+         *
+         * @param {number} [index]
+         *        Register it at the following index
+         */
+        _Tech.registerSourceHandler = function (handler, index) {
+            let handlers = _Tech.sourceHandlers;
+            if (!handlers) {
+                handlers = _Tech.sourceHandlers = [];
+            }
+            if (index === undefined) {
+                // add to the end of the list
+                index = handlers.length;
+            }
+            handlers.splice(index, 0, handler);
+        };
+
+        /**
+         * Check if the tech can support the given type. Also checks the
+         * Techs sourceHandlers.
+         *
+         * @param {string} type
+         *         The mimetype to check.
+         *
+         * @return {string}
+         *         'probably', 'maybe', or '' (empty string)
+         */
+        _Tech.canPlayType = function (type) {
+            const handlers = _Tech.sourceHandlers || [];
+            let can;
+            for (let i = 0; i < handlers.length; i++) {
+                can = handlers[i].canPlayType(type);
+                if (can) {
+                    return can;
+                }
+            }
+            return '';
+        };
+
+        /**
+         * Returns the first source handler that supports the source.
+         *
+         * TODO: Answer question: should 'probably' be prioritized over 'maybe'
+         *
+         * @param {Tech~SourceObject} source
+         *        The source object
+         *
+         * @param {Object} options
+         *        The options passed to the tech
+         *
+         * @return {SourceHandler|null}
+         *          The first source handler that supports the source or null if
+         *          no SourceHandler supports the source
+         */
+        _Tech.selectSourceHandler = function (source, options) {
+            const handlers = _Tech.sourceHandlers || [];
+            let can;
+            for (let i = 0; i < handlers.length; i++) {
+                can = handlers[i].canHandleSource(source, options);
+                if (can) {
+                    return handlers[i];
+                }
+            }
+            return null;
+        };
+
+        /**
+         * Check if the tech can support the given source.
+         *
+         * @param {Tech~SourceObject} srcObj
+         *        The source object
+         *
+         * @param {Object} options
+         *        The options passed to the tech
+         *
+         * @return {string}
+         *         'probably', 'maybe', or '' (empty string)
+         */
+        _Tech.canPlaySource = function (srcObj, options) {
+            const sh = _Tech.selectSourceHandler(srcObj, options);
+            if (sh) {
+                return sh.canHandleSource(srcObj, options);
+            }
+            return '';
+        };
+
+        /**
+         * When using a source handler, prefer its implementation of
+         * any function normally provided by the tech.
+         */
+        const deferrable = ['seekable', 'seeking', 'duration'];
+
+        /**
+         * A wrapper around {@link Tech#seekable} that will call a `SourceHandler`s seekable
+         * function if it exists, with a fallback to the Techs seekable function.
+         *
+         * @method _Tech.seekable
+         */
+
+        /**
+         * A wrapper around {@link Tech#duration} that will call a `SourceHandler`s duration
+         * function if it exists, otherwise it will fallback to the techs duration function.
+         *
+         * @method _Tech.duration
+         */
+
+        deferrable.forEach(function (fnName) {
+            const originalFn = this[fnName];
+            if (typeof originalFn !== 'function') {
+                return;
+            }
+            this[fnName] = function () {
+                if (this.sourceHandler_ && this.sourceHandler_[fnName]) {
+                    return this.sourceHandler_[fnName].apply(this.sourceHandler_, arguments);
+                }
+                return originalFn.apply(this, arguments);
+            };
+        }, _Tech.prototype);
+
+        /**
+         * Create a function for setting the source using a source object
+         * and source handlers.
+         * Should never be called unless a source handler was found.
+         *
+         * @param {Tech~SourceObject} source
+         *        A source object with src and type keys
+         */
+        _Tech.prototype.setSource = function (source) {
+            let sh = _Tech.selectSourceHandler(source, this.options_);
+            if (!sh) {
+                // Fall back to a native source handler when unsupported sources are
+                // deliberately set
+                if (_Tech.nativeSourceHandler) {
+                    sh = _Tech.nativeSourceHandler;
+                } else {
+                    log$1.error('No source handler found for the current source.');
+                }
+            }
+
+            // Dispose any existing source handler
+            this.disposeSourceHandler();
+            this.off('dispose', this.disposeSourceHandler_);
+            if (sh !== _Tech.nativeSourceHandler) {
+                this.currentSource_ = source;
+            }
+            this.sourceHandler_ = sh.handleSource(source, this, this.options_);
+            this.one('dispose', this.disposeSourceHandler_);
+        };
+
+        /**
+         * Clean up any existing SourceHandlers and listeners when the Tech is disposed.
+         *
+         * @listens Tech#dispose
+         */
+        _Tech.prototype.disposeSourceHandler = function () {
+            // if we have a source and get another one
+            // then we are loading something new
+            // than clear all of our current tracks
+            if (this.currentSource_) {
+                this.clearTracks(['audio', 'video']);
+                this.currentSource_ = null;
+            }
+
+            // always clean up auto-text tracks
+            this.cleanupAutoTextTracks();
+            if (this.sourceHandler_) {
+                if (this.sourceHandler_.dispose) {
+                    this.sourceHandler_.dispose();
+                }
+                this.sourceHandler_ = null;
+            }
+        };
+    };
+
+    // The base Tech class needs to be registered as a Component. It is the only
+    // Tech that can be registered as a Component.
+    Component$1.registerComponent('Tech', Tech);
+    Tech.registerTech('Tech', Tech);
+
+    /**
+     * A list of techs that should be added to techOrder on Players
      *
      * @private
      */
-    ;
+    Tech.defaultTechOrder_ = [];
 
-    _proto.restoreMetadataTracksInIOSNativePlayer_ = function restoreMetadataTracksInIOSNativePlayer_() {
-      var textTracks = this.textTracks();
-      var metadataTracksPreFullscreenState; // captures a snapshot of every metadata track's current state
+    /**
+     * @file middleware.js
+     * @module middleware
+     */
+    const middlewares = {};
+    const middlewareInstances = {};
+    const TERMINATOR = {};
 
-      var takeMetadataTrackSnapshot = function takeMetadataTrackSnapshot() {
-        metadataTracksPreFullscreenState = [];
+    /**
+     * A middleware object is a plain JavaScript object that has methods that
+     * match the {@link Tech} methods found in the lists of allowed
+     * {@link module:middleware.allowedGetters|getters},
+     * {@link module:middleware.allowedSetters|setters}, and
+     * {@link module:middleware.allowedMediators|mediators}.
+     *
+     * @typedef {Object} MiddlewareObject
+     */
 
-        for (var i = 0; i < textTracks.length; i++) {
-          var track = textTracks[i];
+    /**
+     * A middleware factory function that should return a
+     * {@link module:middleware~MiddlewareObject|MiddlewareObject}.
+     *
+     * This factory will be called for each player when needed, with the player
+     * passed in as an argument.
+     *
+     * @callback MiddlewareFactory
+     * @param { import('../player').default } player
+     *        A Video.js player.
+     */
 
-          if (track.kind === 'metadata') {
-            metadataTracksPreFullscreenState.push({
-              track: track,
-              storedMode: track.mode
+    /**
+     * Define a middleware that the player should use by way of a factory function
+     * that returns a middleware object.
+     *
+     * @param  {string} type
+     *         The MIME type to match or `"*"` for all MIME types.
+     *
+     * @param  {MiddlewareFactory} middleware
+     *         A middleware factory function that will be executed for
+     *         matching types.
+     */
+    function use(type, middleware) {
+        middlewares[type] = middlewares[type] || [];
+        middlewares[type].push(middleware);
+    }
+
+    /**
+     * Asynchronously sets a source using middleware by recursing through any
+     * matching middlewares and calling `setSource` on each, passing along the
+     * previous returned value each time.
+     *
+     * @param  { import('../player').default } player
+     *         A {@link Player} instance.
+     *
+     * @param  {Tech~SourceObject} src
+     *         A source object.
+     *
+     * @param  {Function}
+     *         The next middleware to run.
+     */
+    function setSource(player, src, next) {
+        player.setTimeout(() => setSourceHelper(src, middlewares[src.type], next, player), 1);
+    }
+
+    /**
+     * When the tech is set, passes the tech to each middleware's `setTech` method.
+     *
+     * @param {Object[]} middleware
+     *        An array of middleware instances.
+     *
+     * @param { import('../tech/tech').default } tech
+     *        A Video.js tech.
+     */
+    function setTech(middleware, tech) {
+        middleware.forEach(mw => mw.setTech && mw.setTech(tech));
+    }
+
+    /**
+     * Calls a getter on the tech first, through each middleware
+     * from right to left to the player.
+     *
+     * @param  {Object[]} middleware
+     *         An array of middleware instances.
+     *
+     * @param  { import('../tech/tech').default } tech
+     *         The current tech.
+     *
+     * @param  {string} method
+     *         A method name.
+     *
+     * @return {*}
+     *         The final value from the tech after middleware has intercepted it.
+     */
+    function get(middleware, tech, method) {
+        return middleware.reduceRight(middlewareIterator(method), tech[method]());
+    }
+
+    /**
+     * Takes the argument given to the player and calls the setter method on each
+     * middleware from left to right to the tech.
+     *
+     * @param  {Object[]} middleware
+     *         An array of middleware instances.
+     *
+     * @param  { import('../tech/tech').default } tech
+     *         The current tech.
+     *
+     * @param  {string} method
+     *         A method name.
+     *
+     * @param  {*} arg
+     *         The value to set on the tech.
+     *
+     * @return {*}
+     *         The return value of the `method` of the `tech`.
+     */
+    function set(middleware, tech, method, arg) {
+        return tech[method](middleware.reduce(middlewareIterator(method), arg));
+    }
+
+    /**
+     * Takes the argument given to the player and calls the `call` version of the
+     * method on each middleware from left to right.
+     *
+     * Then, call the passed in method on the tech and return the result unchanged
+     * back to the player, through middleware, this time from right to left.
+     *
+     * @param  {Object[]} middleware
+     *         An array of middleware instances.
+     *
+     * @param  { import('../tech/tech').default } tech
+     *         The current tech.
+     *
+     * @param  {string} method
+     *         A method name.
+     *
+     * @param  {*} arg
+     *         The value to set on the tech.
+     *
+     * @return {*}
+     *         The return value of the `method` of the `tech`, regardless of the
+     *         return values of middlewares.
+     */
+    function mediate(middleware, tech, method, arg = null) {
+        const callMethod = 'call' + toTitleCase$1(method);
+        const middlewareValue = middleware.reduce(middlewareIterator(callMethod), arg);
+        const terminated = middlewareValue === TERMINATOR;
+        // deprecated. The `null` return value should instead return TERMINATOR to
+        // prevent confusion if a techs method actually returns null.
+        const returnValue = terminated ? null : tech[method](middlewareValue);
+        executeRight(middleware, method, returnValue, terminated);
+        return returnValue;
+    }
+
+    /**
+     * Enumeration of allowed getters where the keys are method names.
+     *
+     * @type {Object}
+     */
+    const allowedGetters = {
+        buffered: 1,
+        currentTime: 1,
+        duration: 1,
+        muted: 1,
+        played: 1,
+        paused: 1,
+        seekable: 1,
+        volume: 1,
+        ended: 1
+    };
+
+    /**
+     * Enumeration of allowed setters where the keys are method names.
+     *
+     * @type {Object}
+     */
+    const allowedSetters = {
+        setCurrentTime: 1,
+        setMuted: 1,
+        setVolume: 1
+    };
+
+    /**
+     * Enumeration of allowed mediators where the keys are method names.
+     *
+     * @type {Object}
+     */
+    const allowedMediators = {
+        play: 1,
+        pause: 1
+    };
+    function middlewareIterator(method) {
+        return (value, mw) => {
+            // if the previous middleware terminated, pass along the termination
+            if (value === TERMINATOR) {
+                return TERMINATOR;
+            }
+            if (mw[method]) {
+                return mw[method](value);
+            }
+            return value;
+        };
+    }
+    function executeRight(mws, method, value, terminated) {
+        for (let i = mws.length - 1; i >= 0; i--) {
+            const mw = mws[i];
+            if (mw[method]) {
+                mw[method](terminated, value);
+            }
+        }
+    }
+
+    /**
+     * Clear the middleware cache for a player.
+     *
+     * @param  { import('../player').default } player
+     *         A {@link Player} instance.
+     */
+    function clearCacheForPlayer(player) {
+        middlewareInstances[player.id()] = null;
+    }
+
+    /**
+     * {
+     *  [playerId]: [[mwFactory, mwInstance], ...]
+     * }
+     *
+     * @private
+     */
+    function getOrCreateFactory(player, mwFactory) {
+        const mws = middlewareInstances[player.id()];
+        let mw = null;
+        if (mws === undefined || mws === null) {
+            mw = mwFactory(player);
+            middlewareInstances[player.id()] = [[mwFactory, mw]];
+            return mw;
+        }
+        for (let i = 0; i < mws.length; i++) {
+            const [mwf, mwi] = mws[i];
+            if (mwf !== mwFactory) {
+                continue;
+            }
+            mw = mwi;
+        }
+        if (mw === null) {
+            mw = mwFactory(player);
+            mws.push([mwFactory, mw]);
+        }
+        return mw;
+    }
+    function setSourceHelper(src = {}, middleware = [], next, player, acc = [], lastRun = false) {
+        const [mwFactory, ...mwrest] = middleware;
+
+        // if mwFactory is a string, then we're at a fork in the road
+        if (typeof mwFactory === 'string') {
+            setSourceHelper(src, middlewares[mwFactory], next, player, acc, lastRun);
+
+            // if we have an mwFactory, call it with the player to get the mw,
+            // then call the mw's setSource method
+        } else if (mwFactory) {
+            const mw = getOrCreateFactory(player, mwFactory);
+
+            // if setSource isn't present, implicitly select this middleware
+            if (!mw.setSource) {
+                acc.push(mw);
+                return setSourceHelper(src, mwrest, next, player, acc, lastRun);
+            }
+            mw.setSource(Object.assign({}, src), function (err, _src) {
+                // something happened, try the next middleware on the current level
+                // make sure to use the old src
+                if (err) {
+                    return setSourceHelper(src, mwrest, next, player, acc, lastRun);
+                }
+
+                // we've succeeded, now we need to go deeper
+                acc.push(mw);
+
+                // if it's the same type, continue down the current chain
+                // otherwise, we want to go down the new chain
+                setSourceHelper(_src, src.type === _src.type ? mwrest : middlewares[_src.type], next, player, acc, lastRun);
             });
-          }
-        }
-      }; // snapshot each metadata track's initial state, and update the snapshot
-      // each time there is a track 'change' event
-
-
-      takeMetadataTrackSnapshot();
-      textTracks.addEventListener('change', takeMetadataTrackSnapshot);
-      this.on('dispose', function () {
-        return textTracks.removeEventListener('change', takeMetadataTrackSnapshot);
-      });
-
-      var restoreTrackMode = function restoreTrackMode() {
-        for (var i = 0; i < metadataTracksPreFullscreenState.length; i++) {
-          var storedTrack = metadataTracksPreFullscreenState[i];
-
-          if (storedTrack.track.mode === 'disabled' && storedTrack.track.mode !== storedTrack.storedMode) {
-            storedTrack.track.mode = storedTrack.storedMode;
-          }
-        } // we only want this handler to be executed on the first 'change' event
-
-
-        textTracks.removeEventListener('change', restoreTrackMode);
-      }; // when we enter fullscreen playback, stop updating the snapshot and
-      // restore all track modes to their pre-fullscreen state
-
-
-      this.on('webkitbeginfullscreen', function () {
-        textTracks.removeEventListener('change', takeMetadataTrackSnapshot); // remove the listener before adding it just in case it wasn't previously removed
-
-        textTracks.removeEventListener('change', restoreTrackMode);
-        textTracks.addEventListener('change', restoreTrackMode);
-      }); // start updating the snapshot again after leaving fullscreen
-
-      this.on('webkitendfullscreen', function () {
-        // remove the listener before adding it just in case it wasn't previously removed
-        textTracks.removeEventListener('change', takeMetadataTrackSnapshot);
-        textTracks.addEventListener('change', takeMetadataTrackSnapshot); // remove the restoreTrackMode handler in case it wasn't triggered during fullscreen playback
-
-        textTracks.removeEventListener('change', restoreTrackMode);
-      });
-    }
-    /**
-     * Attempt to force override of tracks for the given type
-     *
-     * @param {string} type - Track type to override, possible values include 'Audio',
-     * 'Video', and 'Text'.
-     * @param {boolean} override - If set to true native audio/video will be overridden,
-     * otherwise native audio/video will potentially be used.
-     * @private
-     */
-    ;
-
-    _proto.overrideNative_ = function overrideNative_(type, override) {
-      var _this2 = this;
-
-      // If there is no behavioral change don't add/remove listeners
-      if (override !== this["featuresNative" + type + "Tracks"]) {
-        return;
-      }
-
-      var lowerCaseType = type.toLowerCase();
-
-      if (this[lowerCaseType + "TracksListeners_"]) {
-        Object.keys(this[lowerCaseType + "TracksListeners_"]).forEach(function (eventName) {
-          var elTracks = _this2.el()[lowerCaseType + "Tracks"];
-
-          elTracks.removeEventListener(eventName, _this2[lowerCaseType + "TracksListeners_"][eventName]);
-        });
-      }
-
-      this["featuresNative" + type + "Tracks"] = !override;
-      this[lowerCaseType + "TracksListeners_"] = null;
-      this.proxyNativeTracksForType_(lowerCaseType);
-    }
-    /**
-     * Attempt to force override of native audio tracks.
-     *
-     * @param {boolean} override - If set to true native audio will be overridden,
-     * otherwise native audio will potentially be used.
-     */
-    ;
-
-    _proto.overrideNativeAudioTracks = function overrideNativeAudioTracks(override) {
-      this.overrideNative_('Audio', override);
-    }
-    /**
-     * Attempt to force override of native video tracks.
-     *
-     * @param {boolean} override - If set to true native video will be overridden,
-     * otherwise native video will potentially be used.
-     */
-    ;
-
-    _proto.overrideNativeVideoTracks = function overrideNativeVideoTracks(override) {
-      this.overrideNative_('Video', override);
-    }
-    /**
-     * Proxy native track list events for the given type to our track
-     * lists if the browser we are playing in supports that type of track list.
-     *
-     * @param {string} name - Track type; values include 'audio', 'video', and 'text'
-     * @private
-     */
-    ;
-
-    _proto.proxyNativeTracksForType_ = function proxyNativeTracksForType_(name) {
-      var _this3 = this;
-
-      var props = NORMAL[name];
-      var elTracks = this.el()[props.getterName];
-      var techTracks = this[props.getterName]();
-
-      if (!this["featuresNative" + props.capitalName + "Tracks"] || !elTracks || !elTracks.addEventListener) {
-        return;
-      }
-
-      var listeners = {
-        change: function change(e) {
-          var event = {
-            type: 'change',
-            target: techTracks,
-            currentTarget: techTracks,
-            srcElement: techTracks
-          };
-          techTracks.trigger(event); // if we are a text track change event, we should also notify the
-          // remote text track list. This can potentially cause a false positive
-          // if we were to get a change event on a non-remote track and
-          // we triggered the event on the remote text track list which doesn't
-          // contain that track. However, best practices mean looping through the
-          // list of tracks and searching for the appropriate mode value, so,
-          // this shouldn't pose an issue
-
-          if (name === 'text') {
-            _this3[REMOTE.remoteText.getterName]().trigger(event);
-          }
-        },
-        addtrack: function addtrack(e) {
-          techTracks.addTrack(e.track);
-        },
-        removetrack: function removetrack(e) {
-          techTracks.removeTrack(e.track);
-        }
-      };
-
-      var removeOldTracks = function removeOldTracks() {
-        var removeTracks = [];
-
-        for (var i = 0; i < techTracks.length; i++) {
-          var found = false;
-
-          for (var j = 0; j < elTracks.length; j++) {
-            if (elTracks[j] === techTracks[i]) {
-              found = true;
-              break;
-            }
-          }
-
-          if (!found) {
-            removeTracks.push(techTracks[i]);
-          }
-        }
-
-        while (removeTracks.length) {
-          techTracks.removeTrack(removeTracks.shift());
-        }
-      };
-
-      this[props.getterName + 'Listeners_'] = listeners;
-      Object.keys(listeners).forEach(function (eventName) {
-        var listener = listeners[eventName];
-        elTracks.addEventListener(eventName, listener);
-
-        _this3.on('dispose', function (e) {
-          return elTracks.removeEventListener(eventName, listener);
-        });
-      }); // Remove (native) tracks that are not used anymore
-
-      this.on('loadstart', removeOldTracks);
-      this.on('dispose', function (e) {
-        return _this3.off('loadstart', removeOldTracks);
-      });
-    }
-    /**
-     * Proxy all native track list events to our track lists if the browser we are playing
-     * in supports that type of track list.
-     *
-     * @private
-     */
-    ;
-
-    _proto.proxyNativeTracks_ = function proxyNativeTracks_() {
-      var _this4 = this;
-
-      NORMAL.names.forEach(function (name) {
-        _this4.proxyNativeTracksForType_(name);
-      });
-    }
-    /**
-     * Create the `Html5` Tech's DOM element.
-     *
-     * @return {Element}
-     *         The element that gets created.
-     */
-    ;
-
-    _proto.createEl = function createEl() {
-      var el = this.options_.tag; // Check if this browser supports moving the element into the box.
-      // On the iPhone video will break if you move the element,
-      // So we have to create a brand new element.
-      // If we ingested the player div, we do not need to move the media element.
-
-      if (!el || !(this.options_.playerElIngest || this.movingMediaElementInDOM)) {
-        // If the original tag is still there, clone and remove it.
-        if (el) {
-          var clone = el.cloneNode(true);
-
-          if (el.parentNode) {
-            el.parentNode.insertBefore(clone, el);
-          }
-
-          Html5.disposeMediaElement(el);
-          el = clone;
+        } else if (mwrest.length) {
+            setSourceHelper(src, mwrest, next, player, acc, lastRun);
+        } else if (lastRun) {
+            next(src, acc);
         } else {
-          el = document.createElement('video'); // determine if native controls should be used
+            setSourceHelper(src, middlewares['*'], next, player, acc, true);
+        }
+    }
 
-          var tagAttributes = this.options_.tag && getAttributes(this.options_.tag);
-          var attributes = mergeOptions$3({}, tagAttributes);
+    /**
+     * Mimetypes
+     *
+     * @see https://www.iana.org/assignments/media-types/media-types.xhtml
+     * @typedef Mimetypes~Kind
+     * @enum
+     */
+    const MimetypesKind = {
+        opus: 'video/ogg',
+        ogv: 'video/ogg',
+        mp4: 'video/mp4',
+        mov: 'video/mp4',
+        m4v: 'video/mp4',
+        mkv: 'video/x-matroska',
+        m4a: 'audio/mp4',
+        mp3: 'audio/mpeg',
+        aac: 'audio/aac',
+        caf: 'audio/x-caf',
+        flac: 'audio/flac',
+        oga: 'audio/ogg',
+        wav: 'audio/wav',
+        m3u8: 'application/x-mpegURL',
+        mpd: 'application/dash+xml',
+        jpg: 'image/jpeg',
+        jpeg: 'image/jpeg',
+        gif: 'image/gif',
+        png: 'image/png',
+        svg: 'image/svg+xml',
+        webp: 'image/webp'
+    };
 
-          if (!TOUCH_ENABLED || this.options_.nativeControlsForTouch !== true) {
-            delete attributes.controls;
-          }
+    /**
+     * Get the mimetype of a given src url if possible
+     *
+     * @param {string} src
+     *        The url to the src
+     *
+     * @return {string}
+     *         return the mimetype if it was known or empty string otherwise
+     */
+    const getMimetype = function (src = '') {
+        const ext = getFileExtension(src);
+        const mimetype = MimetypesKind[ext.toLowerCase()];
+        return mimetype || '';
+    };
 
-          setAttributes(el, assign(attributes, {
-            id: this.options_.techId,
-            "class": 'vjs-tech'
-          }));
+    /**
+     * Find the mime type of a given source string if possible. Uses the player
+     * source cache.
+     *
+     * @param { import('../player').default } player
+     *        The player object
+     *
+     * @param {string} src
+     *        The source string
+     *
+     * @return {string}
+     *         The type that was found
+     */
+    const findMimetype = (player, src) => {
+        if (!src) {
+            return '';
         }
 
-        el.playerId = this.options_.playerId;
-      }
-
-      if (typeof this.options_.preload !== 'undefined') {
-        setAttribute(el, 'preload', this.options_.preload);
-      }
-
-      if (this.options_.disablePictureInPicture !== undefined) {
-        el.disablePictureInPicture = this.options_.disablePictureInPicture;
-      } // Update specific tag settings, in case they were overridden
-      // `autoplay` has to be *last* so that `muted` and `playsinline` are present
-      // when iOS/Safari or other browsers attempt to autoplay.
-
-
-      var settingsAttrs = ['loop', 'muted', 'playsinline', 'autoplay'];
-
-      for (var i = 0; i < settingsAttrs.length; i++) {
-        var attr = settingsAttrs[i];
-        var value = this.options_[attr];
-
-        if (typeof value !== 'undefined') {
-          if (value) {
-            setAttribute(el, attr, attr);
-          } else {
-            removeAttribute(el, attr);
-          }
-
-          el[attr] = value;
+        // 1. check for the type in the `source` cache
+        if (player.cache_.source.src === src && player.cache_.source.type) {
+            return player.cache_.source.type;
         }
-      }
 
-      return el;
-    }
-    /**
-     * This will be triggered if the loadstart event has already fired, before videojs was
-     * ready. Two known examples of when this can happen are:
-     * 1. If we're loading the playback object after it has started loading
-     * 2. The media is already playing the (often with autoplay on) then
-     *
-     * This function will fire another loadstart so that videojs can catchup.
-     *
-     * @fires Tech#loadstart
-     *
-     * @return {undefined}
-     *         returns nothing.
-     */
-    ;
-
-    _proto.handleLateInit_ = function handleLateInit_(el) {
-      if (el.networkState === 0 || el.networkState === 3) {
-        // The video element hasn't started loading the source yet
-        // or didn't find a source
-        return;
-      }
-
-      if (el.readyState === 0) {
-        // NetworkState is set synchronously BUT loadstart is fired at the
-        // end of the current stack, usually before setInterval(fn, 0).
-        // So at this point we know loadstart may have already fired or is
-        // about to fire, and either way the player hasn't seen it yet.
-        // We don't want to fire loadstart prematurely here and cause a
-        // double loadstart so we'll wait and see if it happens between now
-        // and the next loop, and fire it if not.
-        // HOWEVER, we also want to make sure it fires before loadedmetadata
-        // which could also happen between now and the next loop, so we'll
-        // watch for that also.
-        var loadstartFired = false;
-
-        var setLoadstartFired = function setLoadstartFired() {
-          loadstartFired = true;
-        };
-
-        this.on('loadstart', setLoadstartFired);
-
-        var triggerLoadstart = function triggerLoadstart() {
-          // We did miss the original loadstart. Make sure the player
-          // sees loadstart before loadedmetadata
-          if (!loadstartFired) {
-            this.trigger('loadstart');
-          }
-        };
-
-        this.on('loadedmetadata', triggerLoadstart);
-        this.ready(function () {
-          this.off('loadstart', setLoadstartFired);
-          this.off('loadedmetadata', triggerLoadstart);
-
-          if (!loadstartFired) {
-            // We did miss the original native loadstart. Fire it now.
-            this.trigger('loadstart');
-          }
-        });
-        return;
-      } // From here on we know that loadstart already fired and we missed it.
-      // The other readyState events aren't as much of a problem if we double
-      // them, so not going to go to as much trouble as loadstart to prevent
-      // that unless we find reason to.
-
-
-      var eventsToTrigger = ['loadstart']; // loadedmetadata: newly equal to HAVE_METADATA (1) or greater
-
-      eventsToTrigger.push('loadedmetadata'); // loadeddata: newly increased to HAVE_CURRENT_DATA (2) or greater
-
-      if (el.readyState >= 2) {
-        eventsToTrigger.push('loadeddata');
-      } // canplay: newly increased to HAVE_FUTURE_DATA (3) or greater
-
-
-      if (el.readyState >= 3) {
-        eventsToTrigger.push('canplay');
-      } // canplaythrough: newly equal to HAVE_ENOUGH_DATA (4)
-
-
-      if (el.readyState >= 4) {
-        eventsToTrigger.push('canplaythrough');
-      } // We still need to give the player time to add event listeners
-
-
-      this.ready(function () {
-        eventsToTrigger.forEach(function (type) {
-          this.trigger(type);
-        }, this);
-      });
-    }
-    /**
-     * Set whether we are scrubbing or not.
-     * This is used to decide whether we should use `fastSeek` or not.
-     * `fastSeek` is used to provide trick play on Safari browsers.
-     *
-     * @param {boolean} isScrubbing
-     *                  - true for we are currently scrubbing
-     *                  - false for we are no longer scrubbing
-     */
-    ;
-
-    _proto.setScrubbing = function setScrubbing(isScrubbing) {
-      this.isScrubbing_ = isScrubbing;
-    }
-    /**
-     * Get whether we are scrubbing or not.
-     *
-     * @return {boolean} isScrubbing
-     *                  - true for we are currently scrubbing
-     *                  - false for we are no longer scrubbing
-     */
-    ;
-
-    _proto.scrubbing = function scrubbing() {
-      return this.isScrubbing_;
-    }
-    /**
-     * Set current time for the `HTML5` tech.
-     *
-     * @param {number} seconds
-     *        Set the current time of the media to this.
-     */
-    ;
-
-    _proto.setCurrentTime = function setCurrentTime(seconds) {
-      try {
-        if (this.isScrubbing_ && this.el_.fastSeek && IS_ANY_SAFARI) {
-          this.el_.fastSeek(seconds);
-        } else {
-          this.el_.currentTime = seconds;
+        // 2. see if we have this source in our `currentSources` cache
+        const matchingSources = player.cache_.sources.filter(s => s.src === src);
+        if (matchingSources.length) {
+            return matchingSources[0].type;
         }
-      } catch (e) {
-        log$1(e, 'Video is not ready. (Video.js)'); // this.warning(VideoJS.warnings.videoNotReady);
-      }
-    }
-    /**
-     * Get the current duration of the HTML5 media element.
-     *
-     * @return {number}
-     *         The duration of the media or 0 if there is no duration.
-     */
-    ;
 
-    _proto.duration = function duration() {
-      var _this5 = this;
-
-      // Android Chrome will report duration as Infinity for VOD HLS until after
-      // playback has started, which triggers the live display erroneously.
-      // Return NaN if playback has not started and trigger a durationupdate once
-      // the duration can be reliably known.
-      if (this.el_.duration === Infinity && IS_ANDROID && IS_CHROME && this.el_.currentTime === 0) {
-        // Wait for the first `timeupdate` with currentTime > 0 - there may be
-        // several with 0
-        var checkProgress = function checkProgress() {
-          if (_this5.el_.currentTime > 0) {
-            // Trigger durationchange for genuinely live video
-            if (_this5.el_.duration === Infinity) {
-              _this5.trigger('durationchange');
+        // 3. look for the src url in source elements and use the type there
+        const sources = player.$$('source');
+        for (let i = 0; i < sources.length; i++) {
+            const s = sources[i];
+            if (s.type && s.src && s.src === src) {
+                return s.type;
             }
+        }
 
-            _this5.off('timeupdate', checkProgress);
-          }
-        };
+        // 4. finally fallback to our list of mime types based on src url extension
+        return getMimetype(src);
+    };
 
-        this.on('timeupdate', checkProgress);
-        return NaN;
-      }
-
-      return this.el_.duration || NaN;
-    }
     /**
-     * Get the current width of the HTML5 media element.
-     *
-     * @return {number}
-     *         The width of the HTML5 media element.
+     * @module filter-source
      */
-    ;
 
-    _proto.width = function width() {
-      return this.el_.offsetWidth;
-    }
     /**
-     * Get the current height of the HTML5 media element.
+     * Filter out single bad source objects or multiple source objects in an
+     * array. Also flattens nested source object arrays into a 1 dimensional
+     * array of source objects.
      *
-     * @return {number}
-     *         The height of the HTML5 media element.
-     */
-    ;
-
-    _proto.height = function height() {
-      return this.el_.offsetHeight;
-    }
-    /**
-     * Proxy iOS `webkitbeginfullscreen` and `webkitendfullscreen` into
-     * `fullscreenchange` event.
+     * @param {Tech~SourceObject|Tech~SourceObject[]} src
+     *        The src object to filter
+     *
+     * @return {Tech~SourceObject[]}
+     *         An array of sourceobjects containing only valid sources
      *
      * @private
-     * @fires fullscreenchange
-     * @listens webkitendfullscreen
-     * @listens webkitbeginfullscreen
-     * @listens webkitbeginfullscreen
      */
-    ;
-
-    _proto.proxyWebkitFullscreen_ = function proxyWebkitFullscreen_() {
-      var _this6 = this;
-
-      if (!('webkitDisplayingFullscreen' in this.el_)) {
-        return;
-      }
-
-      var endFn = function endFn() {
-        this.trigger('fullscreenchange', {
-          isFullscreen: false
-        }); // Safari will sometimes set contols on the videoelement when existing fullscreen.
-
-        if (this.el_.controls && !this.options_.nativeControlsForTouch && this.controls()) {
-          this.el_.controls = false;
+    const filterSource = function (src) {
+        // traverse array
+        if (Array.isArray(src)) {
+            let newsrc = [];
+            src.forEach(function (srcobj) {
+                srcobj = filterSource(srcobj);
+                if (Array.isArray(srcobj)) {
+                    newsrc = newsrc.concat(srcobj);
+                } else if (isObject$1(srcobj)) {
+                    newsrc.push(srcobj);
+                }
+            });
+            src = newsrc;
+        } else if (typeof src === 'string' && src.trim()) {
+            // convert string into object
+            src = [fixSource({
+                src
+            })];
+        } else if (isObject$1(src) && typeof src.src === 'string' && src.src && src.src.trim()) {
+            // src is already valid
+            src = [fixSource(src)];
+        } else {
+            // invalid source, turn it into an empty array
+            src = [];
         }
-      };
+        return src;
+    };
 
-      var beginFn = function beginFn() {
-        if ('webkitPresentationMode' in this.el_ && this.el_.webkitPresentationMode !== 'picture-in-picture') {
-          this.one('webkitendfullscreen', endFn);
-          this.trigger('fullscreenchange', {
-            isFullscreen: true,
-            // set a flag in case another tech triggers fullscreenchange
-            nativeIOSFullscreen: true
-          });
-        }
-      };
-
-      this.on('webkitbeginfullscreen', beginFn);
-      this.on('dispose', function () {
-        _this6.off('webkitbeginfullscreen', beginFn);
-
-        _this6.off('webkitendfullscreen', endFn);
-      });
-    }
     /**
-     * Check if fullscreen is supported on the current playback device.
-     *
-     * @return {boolean}
-     *         - True if fullscreen is supported.
-     *         - False if fullscreen is not supported.
-     */
-    ;
-
-    _proto.supportsFullScreen = function supportsFullScreen() {
-      if (typeof this.el_.webkitEnterFullScreen === 'function') {
-        var userAgent = window.navigator && window.navigator.userAgent || ''; // Seems to be broken in Chromium/Chrome && Safari in Leopard
-
-        if (/Android/.test(userAgent) || !/Chrome|Mac OS X 10.5/.test(userAgent)) {
-          return true;
-        }
-      }
-
-      return false;
-    }
-    /**
-     * Request that the `HTML5` Tech enter fullscreen.
-     */
-    ;
-
-    _proto.enterFullScreen = function enterFullScreen() {
-      var video = this.el_;
-
-      if (video.paused && video.networkState <= video.HAVE_METADATA) {
-        // attempt to prime the video element for programmatic access
-        // this isn't necessary on the desktop but shouldn't hurt
-        silencePromise(this.el_.play()); // playing and pausing synchronously during the transition to fullscreen
-        // can get iOS ~6.1 devices into a play/pause loop
-
-        this.setTimeout(function () {
-          video.pause();
-
-          try {
-            video.webkitEnterFullScreen();
-          } catch (e) {
-            this.trigger('fullscreenerror', e);
-          }
-        }, 0);
-      } else {
-        try {
-          video.webkitEnterFullScreen();
-        } catch (e) {
-          this.trigger('fullscreenerror', e);
-        }
-      }
-    }
-    /**
-     * Request that the `HTML5` Tech exit fullscreen.
-     */
-    ;
-
-    _proto.exitFullScreen = function exitFullScreen() {
-      if (!this.el_.webkitDisplayingFullscreen) {
-        this.trigger('fullscreenerror', new Error('The video is not fullscreen'));
-        return;
-      }
-
-      this.el_.webkitExitFullScreen();
-    }
-    /**
-     * Create a floating video window always on top of other windows so that users may
-     * continue consuming media while they interact with other content sites, or
-     * applications on their device.
-     *
-     * @see [Spec]{@link https://wicg.github.io/picture-in-picture}
-     *
-     * @return {Promise}
-     *         A promise with a Picture-in-Picture window.
-     */
-    ;
-
-    _proto.requestPictureInPicture = function requestPictureInPicture() {
-      return this.el_.requestPictureInPicture();
-    }
-    /**
-     * Native requestVideoFrameCallback if supported by browser/tech, or fallback
-     * Don't use rVCF on Safari when DRM is playing, as it doesn't fire
-     * Needs to be checked later than the constructor
-     * This will be a false positive for clear sources loaded after a Fairplay source
-     *
-     * @param {function} cb function to call
-     * @return {number} id of request
-     */
-    ;
-
-    _proto.requestVideoFrameCallback = function requestVideoFrameCallback(cb) {
-      if (this.featuresVideoFrameCallback && !this.el_.webkitKeys) {
-        return this.el_.requestVideoFrameCallback(cb);
-      }
-
-      return _Tech.prototype.requestVideoFrameCallback.call(this, cb);
-    }
-    /**
-     * Native or fallback requestVideoFrameCallback
-     *
-     * @param {number} id request id to cancel
-     */
-    ;
-
-    _proto.cancelVideoFrameCallback = function cancelVideoFrameCallback(id) {
-      if (this.featuresVideoFrameCallback && !this.el_.webkitKeys) {
-        this.el_.cancelVideoFrameCallback(id);
-      } else {
-        _Tech.prototype.cancelVideoFrameCallback.call(this, id);
-      }
-    }
-    /**
-     * A getter/setter for the `Html5` Tech's source object.
-     * > Note: Please use {@link Html5#setSource}
-     *
-     * @param {Tech~SourceObject} [src]
-     *        The source object you want to set on the `HTML5` techs element.
-     *
-     * @return {Tech~SourceObject|undefined}
-     *         - The current source object when a source is not passed in.
-     *         - undefined when setting
-     *
-     * @deprecated Since version 5.
-     */
-    ;
-
-    _proto.src = function src(_src) {
-      if (_src === undefined) {
-        return this.el_.src;
-      } // Setting src through `src` instead of `setSrc` will be deprecated
-
-
-      this.setSrc(_src);
-    }
-    /**
-     * Reset the tech by removing all sources and then calling
-     * {@link Html5.resetMediaElement}.
-     */
-    ;
-
-    _proto.reset = function reset() {
-      Html5.resetMediaElement(this.el_);
-    }
-    /**
-     * Get the current source on the `HTML5` Tech. Falls back to returning the source from
-     * the HTML5 media element.
+     * Checks src mimetype, adding it when possible
      *
+     * @param {Tech~SourceObject} src
+     *        The src object to check
      * @return {Tech~SourceObject}
-     *         The current source object from the HTML5 tech. With a fallback to the
-     *         elements source.
+     *        src Object with known type
      */
-    ;
-
-    _proto.currentSrc = function currentSrc() {
-      if (this.currentSource_) {
-        return this.currentSource_.src;
-      }
-
-      return this.el_.currentSrc;
-    }
-    /**
-     * Set controls attribute for the HTML5 media Element.
-     *
-     * @param {string} val
-     *        Value to set the controls attribute to
-     */
-    ;
-
-    _proto.setControls = function setControls(val) {
-      this.el_.controls = !!val;
-    }
-    /**
-     * Create and returns a remote {@link TextTrack} object.
-     *
-     * @param {string} kind
-     *        `TextTrack` kind (subtitles, captions, descriptions, chapters, or metadata)
-     *
-     * @param {string} [label]
-     *        Label to identify the text track
-     *
-     * @param {string} [language]
-     *        Two letter language abbreviation
-     *
-     * @return {TextTrack}
-     *         The TextTrack that gets created.
-     */
-    ;
-
-    _proto.addTextTrack = function addTextTrack(kind, label, language) {
-      if (!this.featuresNativeTextTracks) {
-        return _Tech.prototype.addTextTrack.call(this, kind, label, language);
-      }
-
-      return this.el_.addTextTrack(kind, label, language);
-    }
-    /**
-     * Creates either native TextTrack or an emulated TextTrack depending
-     * on the value of `featuresNativeTextTracks`
-     *
-     * @param {Object} options
-     *        The object should contain the options to initialize the TextTrack with.
-     *
-     * @param {string} [options.kind]
-     *        `TextTrack` kind (subtitles, captions, descriptions, chapters, or metadata).
-     *
-     * @param {string} [options.label]
-     *        Label to identify the text track
-     *
-     * @param {string} [options.language]
-     *        Two letter language abbreviation.
-     *
-     * @param {boolean} [options.default]
-     *        Default this track to on.
-     *
-     * @param {string} [options.id]
-     *        The internal id to assign this track.
-     *
-     * @param {string} [options.src]
-     *        A source url for the track.
-     *
-     * @return {HTMLTrackElement}
-     *         The track element that gets created.
-     */
-    ;
-
-    _proto.createRemoteTextTrack = function createRemoteTextTrack(options) {
-      if (!this.featuresNativeTextTracks) {
-        return _Tech.prototype.createRemoteTextTrack.call(this, options);
-      }
-
-      var htmlTrackElement = document.createElement('track');
-
-      if (options.kind) {
-        htmlTrackElement.kind = options.kind;
-      }
-
-      if (options.label) {
-        htmlTrackElement.label = options.label;
-      }
-
-      if (options.language || options.srclang) {
-        htmlTrackElement.srclang = options.language || options.srclang;
-      }
-
-      if (options["default"]) {
-        htmlTrackElement["default"] = options["default"];
-      }
-
-      if (options.id) {
-        htmlTrackElement.id = options.id;
-      }
-
-      if (options.src) {
-        htmlTrackElement.src = options.src;
-      }
-
-      return htmlTrackElement;
-    }
-    /**
-     * Creates a remote text track object and returns an html track element.
-     *
-     * @param {Object} options The object should contain values for
-     * kind, language, label, and src (location of the WebVTT file)
-     * @param {boolean} [manualCleanup=true] if set to false, the TextTrack will be
-     * automatically removed from the video element whenever the source changes
-     * @return {HTMLTrackElement} An Html Track Element.
-     * This can be an emulated {@link HTMLTrackElement} or a native one.
-     * @deprecated The default value of the "manualCleanup" parameter will default
-     * to "false" in upcoming versions of Video.js
-     */
-    ;
-
-    _proto.addRemoteTextTrack = function addRemoteTextTrack(options, manualCleanup) {
-      var htmlTrackElement = _Tech.prototype.addRemoteTextTrack.call(this, options, manualCleanup);
-
-      if (this.featuresNativeTextTracks) {
-        this.el().appendChild(htmlTrackElement);
-      }
-
-      return htmlTrackElement;
-    }
-    /**
-     * Remove remote `TextTrack` from `TextTrackList` object
-     *
-     * @param {TextTrack} track
-     *        `TextTrack` object to remove
-     */
-    ;
-
-    _proto.removeRemoteTextTrack = function removeRemoteTextTrack(track) {
-      _Tech.prototype.removeRemoteTextTrack.call(this, track);
-
-      if (this.featuresNativeTextTracks) {
-        var tracks = this.$$('track');
-        var i = tracks.length;
-
-        while (i--) {
-          if (track === tracks[i] || track === tracks[i].track) {
-            this.el().removeChild(tracks[i]);
-          }
+    function fixSource(src) {
+        if (!src.type) {
+            const mimetype = getMimetype(src.src);
+            if (mimetype) {
+                src.type = mimetype;
+            }
         }
-      }
+        return src;
     }
+
     /**
-     * Gets available media playback quality metrics as specified by the W3C's Media
-     * Playback Quality API.
-     *
-     * @see [Spec]{@link https://wicg.github.io/media-playback-quality}
-     *
-     * @return {Object}
-     *         An object with supported media playback quality metrics
+     * @file loader.js
      */
-    ;
 
-    _proto.getVideoPlaybackQuality = function getVideoPlaybackQuality() {
-      if (typeof this.el().getVideoPlaybackQuality === 'function') {
-        return this.el().getVideoPlaybackQuality();
-      }
+    /**
+     * The `MediaLoader` is the `Component` that decides which playback technology to load
+     * when a player is initialized.
+     *
+     * @extends Component
+     */
+    class MediaLoader extends Component$1 {
+        /**
+         * Create an instance of this class.
+         *
+         * @param { import('../player').default } player
+         *        The `Player` that this class should attach to.
+         *
+         * @param {Object} [options]
+         *        The key/value store of player options.
+         *
+         * @param {Function} [ready]
+         *        The function that is run when this component is ready.
+         */
+        constructor(player, options, ready) {
+            // MediaLoader has no element
+            const options_ = merge$2({
+                createEl: false
+            }, options);
+            super(player, options_, ready);
 
-      var videoPlaybackQuality = {};
+            // If there are no sources when the player is initialized,
+            // load the first supported playback technology.
 
-      if (typeof this.el().webkitDroppedFrameCount !== 'undefined' && typeof this.el().webkitDecodedFrameCount !== 'undefined') {
-        videoPlaybackQuality.droppedVideoFrames = this.el().webkitDroppedFrameCount;
-        videoPlaybackQuality.totalVideoFrames = this.el().webkitDecodedFrameCount;
-      }
+            if (!options.playerOptions.sources || options.playerOptions.sources.length === 0) {
+                for (let i = 0, j = options.playerOptions.techOrder; i < j.length; i++) {
+                    const techName = toTitleCase$1(j[i]);
+                    let tech = Tech.getTech(techName);
 
-      if (window.performance && typeof window.performance.now === 'function') {
-        videoPlaybackQuality.creationTime = window.performance.now();
-      } else if (window.performance && window.performance.timing && typeof window.performance.timing.navigationStart === 'number') {
-        videoPlaybackQuality.creationTime = window.Date.now() - window.performance.timing.navigationStart;
-      }
+                    // Support old behavior of techs being registered as components.
+                    // Remove once that deprecated behavior is removed.
+                    if (!techName) {
+                        tech = Component$1.getComponent(techName);
+                    }
 
-      return videoPlaybackQuality;
-    };
-
-    return Html5;
-  }(Tech);
-  /* HTML5 Support Testing ---------------------------------------------------- */
-
-  /**
-   * Element for testing browser HTML5 media capabilities
-   *
-   * @type {Element}
-   * @constant
-   * @private
-   */
-
-
-  defineLazyProperty(Html5, 'TEST_VID', function () {
-    if (!isReal()) {
-      return;
+                    // Check if the browser supports this technology
+                    if (tech && tech.isSupported()) {
+                        player.loadTech_(techName);
+                        break;
+                    }
+                }
+            } else {
+                // Loop through playback technologies (e.g. HTML5) and check for support.
+                // Then load the best source.
+                // A few assumptions here:
+                //   All playback technologies respect preload false.
+                player.src(options.playerOptions.sources);
+            }
+        }
     }
+    Component$1.registerComponent('MediaLoader', MediaLoader);
 
-    var video = document.createElement('video');
-    var track = document.createElement('track');
-    track.kind = 'captions';
-    track.srclang = 'en';
-    track.label = 'English';
-    video.appendChild(track);
-    return video;
-  });
-  /**
-   * Check if HTML5 media is supported by this browser/device.
-   *
-   * @return {boolean}
-   *         - True if HTML5 media is supported.
-   *         - False if HTML5 media is not supported.
-   */
+    /**
+     * @file clickable-component.js
+     */
 
-  Html5.isSupported = function () {
-    // IE with no Media Player is a LIAR! (#984)
-    try {
-      Html5.TEST_VID.volume = 0.5;
-    } catch (e) {
-      return false;
-    }
-
-    return !!(Html5.TEST_VID && Html5.TEST_VID.canPlayType);
-  };
-  /**
-   * Check if the tech can support the given type
-   *
-   * @param {string} type
-   *        The mimetype to check
-   * @return {string} 'probably', 'maybe', or '' (empty string)
-   */
-
-
-  Html5.canPlayType = function (type) {
-    return Html5.TEST_VID.canPlayType(type);
-  };
-  /**
-   * Check if the tech can support the given source
-   *
-   * @param {Object} srcObj
-   *        The source object
-   * @param {Object} options
-   *        The options passed to the tech
-   * @return {string} 'probably', 'maybe', or '' (empty string)
-   */
-
-
-  Html5.canPlaySource = function (srcObj, options) {
-    return Html5.canPlayType(srcObj.type);
-  };
-  /**
-   * Check if the volume can be changed in this browser/device.
-   * Volume cannot be changed in a lot of mobile devices.
-   * Specifically, it can't be changed from 1 on iOS.
-   *
-   * @return {boolean}
-   *         - True if volume can be controlled
-   *         - False otherwise
-   */
-
-
-  Html5.canControlVolume = function () {
-    // IE will error if Windows Media Player not installed #3315
-    try {
-      var volume = Html5.TEST_VID.volume;
-      Html5.TEST_VID.volume = volume / 2 + 0.1;
-      var canControl = volume !== Html5.TEST_VID.volume; // With the introduction of iOS 15, there are cases where the volume is read as
-      // changed but reverts back to its original state at the start of the next tick.
-      // To determine whether volume can be controlled on iOS,
-      // a timeout is set and the volume is checked asynchronously.
-      // Since `features` doesn't currently work asynchronously, the value is manually set.
-
-      if (canControl && IS_IOS) {
-        window.setTimeout(function () {
-          if (Html5 && Html5.prototype) {
-            Html5.prototype.featuresVolumeControl = volume !== Html5.TEST_VID.volume;
-          }
-        }); // default iOS to false, which will be updated in the timeout above.
-
-        return false;
-      }
-
-      return canControl;
-    } catch (e) {
-      return false;
-    }
-  };
-  /**
-   * Check if the volume can be muted in this browser/device.
-   * Some devices, e.g. iOS, don't allow changing volume
-   * but permits muting/unmuting.
-   *
-   * @return {bolean}
-   *      - True if volume can be muted
-   *      - False otherwise
-   */
-
-
-  Html5.canMuteVolume = function () {
-    try {
-      var muted = Html5.TEST_VID.muted; // in some versions of iOS muted property doesn't always
-      // work, so we want to set both property and attribute
-
-      Html5.TEST_VID.muted = !muted;
-
-      if (Html5.TEST_VID.muted) {
-        setAttribute(Html5.TEST_VID, 'muted', 'muted');
-      } else {
-        removeAttribute(Html5.TEST_VID, 'muted', 'muted');
-      }
-
-      return muted !== Html5.TEST_VID.muted;
-    } catch (e) {
-      return false;
-    }
-  };
-  /**
-   * Check if the playback rate can be changed in this browser/device.
-   *
-   * @return {boolean}
-   *         - True if playback rate can be controlled
-   *         - False otherwise
-   */
-
-
-  Html5.canControlPlaybackRate = function () {
-    // Playback rate API is implemented in Android Chrome, but doesn't do anything
-    // https://github.com/videojs/video.js/issues/3180
-    if (IS_ANDROID && IS_CHROME && CHROME_VERSION < 58) {
-      return false;
-    } // IE will error if Windows Media Player not installed #3315
-
-
-    try {
-      var playbackRate = Html5.TEST_VID.playbackRate;
-      Html5.TEST_VID.playbackRate = playbackRate / 2 + 0.1;
-      return playbackRate !== Html5.TEST_VID.playbackRate;
-    } catch (e) {
-      return false;
-    }
-  };
-  /**
-   * Check if we can override a video/audio elements attributes, with
-   * Object.defineProperty.
-   *
-   * @return {boolean}
-   *         - True if builtin attributes can be overridden
-   *         - False otherwise
-   */
-
-
-  Html5.canOverrideAttributes = function () {
-    // if we cannot overwrite the src/innerHTML property, there is no support
-    // iOS 7 safari for instance cannot do this.
-    try {
-      var noop = function noop() {};
-
-      Object.defineProperty(document.createElement('video'), 'src', {
-        get: noop,
-        set: noop
-      });
-      Object.defineProperty(document.createElement('audio'), 'src', {
-        get: noop,
-        set: noop
-      });
-      Object.defineProperty(document.createElement('video'), 'innerHTML', {
-        get: noop,
-        set: noop
-      });
-      Object.defineProperty(document.createElement('audio'), 'innerHTML', {
-        get: noop,
-        set: noop
-      });
-    } catch (e) {
-      return false;
-    }
-
-    return true;
-  };
-  /**
-   * Check to see if native `TextTrack`s are supported by this browser/device.
-   *
-   * @return {boolean}
-   *         - True if native `TextTrack`s are supported.
-   *         - False otherwise
-   */
-
-
-  Html5.supportsNativeTextTracks = function () {
-    return IS_ANY_SAFARI || IS_IOS && IS_CHROME;
-  };
-  /**
-   * Check to see if native `VideoTrack`s are supported by this browser/device
-   *
-   * @return {boolean}
-   *        - True if native `VideoTrack`s are supported.
-   *        - False otherwise
-   */
-
-
-  Html5.supportsNativeVideoTracks = function () {
-    return !!(Html5.TEST_VID && Html5.TEST_VID.videoTracks);
-  };
-  /**
-   * Check to see if native `AudioTrack`s are supported by this browser/device
-   *
-   * @return {boolean}
-   *        - True if native `AudioTrack`s are supported.
-   *        - False otherwise
-   */
-
-
-  Html5.supportsNativeAudioTracks = function () {
-    return !!(Html5.TEST_VID && Html5.TEST_VID.audioTracks);
-  };
-  /**
-   * An array of events available on the Html5 tech.
-   *
-   * @private
-   * @type {Array}
-   */
-
-
-  Html5.Events = ['loadstart', 'suspend', 'abort', 'error', 'emptied', 'stalled', 'loadedmetadata', 'loadeddata', 'canplay', 'canplaythrough', 'playing', 'waiting', 'seeking', 'seeked', 'ended', 'durationchange', 'timeupdate', 'progress', 'play', 'pause', 'ratechange', 'resize', 'volumechange'];
-  /**
-   * Boolean indicating whether the `Tech` supports volume control.
-   *
-   * @type {boolean}
-   * @default {@link Html5.canControlVolume}
-   */
-
-  /**
-   * Boolean indicating whether the `Tech` supports muting volume.
-   *
-   * @type {bolean}
-   * @default {@link Html5.canMuteVolume}
-   */
-
-  /**
-   * Boolean indicating whether the `Tech` supports changing the speed at which the media
-   * plays. Examples:
-   *   - Set player to play 2x (twice) as fast
-   *   - Set player to play 0.5x (half) as fast
-   *
-   * @type {boolean}
-   * @default {@link Html5.canControlPlaybackRate}
-   */
-
-  /**
-   * Boolean indicating whether the `Tech` supports the `sourceset` event.
-   *
-   * @type {boolean}
-   * @default
-   */
-
-  /**
-   * Boolean indicating whether the `HTML5` tech currently supports native `TextTrack`s.
-   *
-   * @type {boolean}
-   * @default {@link Html5.supportsNativeTextTracks}
-   */
-
-  /**
-   * Boolean indicating whether the `HTML5` tech currently supports native `VideoTrack`s.
-   *
-   * @type {boolean}
-   * @default {@link Html5.supportsNativeVideoTracks}
-   */
-
-  /**
-   * Boolean indicating whether the `HTML5` tech currently supports native `AudioTrack`s.
-   *
-   * @type {boolean}
-   * @default {@link Html5.supportsNativeAudioTracks}
-   */
-
-  [['featuresMuteControl', 'canMuteVolume'], ['featuresPlaybackRate', 'canControlPlaybackRate'], ['featuresSourceset', 'canOverrideAttributes'], ['featuresNativeTextTracks', 'supportsNativeTextTracks'], ['featuresNativeVideoTracks', 'supportsNativeVideoTracks'], ['featuresNativeAudioTracks', 'supportsNativeAudioTracks']].forEach(function (_ref) {
-    var key = _ref[0],
-        fn = _ref[1];
-    defineLazyProperty(Html5.prototype, key, function () {
-      return Html5[fn]();
-    }, true);
-  });
-  Html5.prototype.featuresVolumeControl = Html5.canControlVolume();
-  /**
-   * Boolean indicating whether the `HTML5` tech currently supports the media element
-   * moving in the DOM. iOS breaks if you move the media element, so this is set this to
-   * false there. Everywhere else this should be true.
-   *
-   * @type {boolean}
-   * @default
-   */
-
-  Html5.prototype.movingMediaElementInDOM = !IS_IOS; // TODO: Previous comment: No longer appears to be used. Can probably be removed.
-  //       Is this true?
-
-  /**
-   * Boolean indicating whether the `HTML5` tech currently supports automatic media resize
-   * when going into fullscreen.
-   *
-   * @type {boolean}
-   * @default
-   */
-
-  Html5.prototype.featuresFullscreenResize = true;
-  /**
-   * Boolean indicating whether the `HTML5` tech currently supports the progress event.
-   * If this is false, manual `progress` events will be triggered instead.
-   *
-   * @type {boolean}
-   * @default
-   */
-
-  Html5.prototype.featuresProgressEvents = true;
-  /**
-   * Boolean indicating whether the `HTML5` tech currently supports the timeupdate event.
-   * If this is false, manual `timeupdate` events will be triggered instead.
-   *
-   * @default
-   */
-
-  Html5.prototype.featuresTimeupdateEvents = true;
-  /**
-   * Whether the HTML5 el supports `requestVideoFrameCallback`
-   *
-   * @type {boolean}
-   */
-
-  Html5.prototype.featuresVideoFrameCallback = !!(Html5.TEST_VID && Html5.TEST_VID.requestVideoFrameCallback); // HTML5 Feature detection and Device Fixes --------------------------------- //
-
-  var canPlayType;
-
-  Html5.patchCanPlayType = function () {
-    // Android 4.0 and above can play HLS to some extent but it reports being unable to do so
-    // Firefox and Chrome report correctly
-    if (ANDROID_VERSION >= 4.0 && !IS_FIREFOX && !IS_CHROME) {
-      canPlayType = Html5.TEST_VID && Html5.TEST_VID.constructor.prototype.canPlayType;
-
-      Html5.TEST_VID.constructor.prototype.canPlayType = function (type) {
-        var mpegurlRE = /^application\/(?:x-|vnd\.apple\.)mpegurl/i;
-
-        if (type && mpegurlRE.test(type)) {
-          return 'maybe';
+    /**
+     * Component which is clickable or keyboard actionable, but is not a
+     * native HTML button.
+     *
+     * @extends Component
+     */
+    class ClickableComponent extends Component$1 {
+        /**
+         * Creates an instance of this class.
+         *
+         * @param  { import('./player').default } player
+         *         The `Player` that this class should be attached to.
+         *
+         * @param  {Object} [options]
+         *         The key/value store of component options.
+         *
+         * @param  {function} [options.clickHandler]
+         *         The function to call when the button is clicked / activated
+         *
+         * @param  {string} [options.controlText]
+         *         The text to set on the button
+         *
+         * @param  {string} [options.className]
+         *         A class or space separated list of classes to add the component
+         *
+         */
+        constructor(player, options) {
+            super(player, options);
+            if (this.options_.controlText) {
+                this.controlText(this.options_.controlText);
+            }
+            this.handleMouseOver_ = e => this.handleMouseOver(e);
+            this.handleMouseOut_ = e => this.handleMouseOut(e);
+            this.handleClick_ = e => this.handleClick(e);
+            this.handleKeyDown_ = e => this.handleKeyDown(e);
+            this.emitTapEvents();
+            this.enable();
         }
 
-        return canPlayType.call(this, type);
-      };
-    }
-  };
-
-  Html5.unpatchCanPlayType = function () {
-    var r = Html5.TEST_VID.constructor.prototype.canPlayType;
-
-    if (canPlayType) {
-      Html5.TEST_VID.constructor.prototype.canPlayType = canPlayType;
-    }
-
-    return r;
-  }; // by default, patch the media element
-
-
-  Html5.patchCanPlayType();
-
-  Html5.disposeMediaElement = function (el) {
-    if (!el) {
-      return;
-    }
-
-    if (el.parentNode) {
-      el.parentNode.removeChild(el);
-    } // remove any child track or source nodes to prevent their loading
-
-
-    while (el.hasChildNodes()) {
-      el.removeChild(el.firstChild);
-    } // remove any src reference. not setting `src=''` because that causes a warning
-    // in firefox
-
-
-    el.removeAttribute('src'); // force the media element to update its loading state by calling load()
-    // however IE on Windows 7N has a bug that throws an error so need a try/catch (#793)
-
-    if (typeof el.load === 'function') {
-      // wrapping in an iife so it's not deoptimized (#1060#discussion_r10324473)
-      (function () {
-        try {
-          el.load();
-        } catch (e) {// not supported
-        }
-      })();
-    }
-  };
-
-  Html5.resetMediaElement = function (el) {
-    if (!el) {
-      return;
-    }
-
-    var sources = el.querySelectorAll('source');
-    var i = sources.length;
-
-    while (i--) {
-      el.removeChild(sources[i]);
-    } // remove any src reference.
-    // not setting `src=''` because that throws an error
-
-
-    el.removeAttribute('src');
-
-    if (typeof el.load === 'function') {
-      // wrapping in an iife so it's not deoptimized (#1060#discussion_r10324473)
-      (function () {
-        try {
-          el.load();
-        } catch (e) {// satisfy linter
-        }
-      })();
-    }
-  };
-  /* Native HTML5 element property wrapping ----------------------------------- */
-  // Wrap native boolean attributes with getters that check both property and attribute
-  // The list is as followed:
-  // muted, defaultMuted, autoplay, controls, loop, playsinline
-
-
-  [
-  /**
-   * Get the value of `muted` from the media element. `muted` indicates
-   * that the volume for the media should be set to silent. This does not actually change
-   * the `volume` attribute.
-   *
-   * @method Html5#muted
-   * @return {boolean}
-   *         - True if the value of `volume` should be ignored and the audio set to silent.
-   *         - False if the value of `volume` should be used.
-   *
-   * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-muted}
-   */
-  'muted',
-  /**
-   * Get the value of `defaultMuted` from the media element. `defaultMuted` indicates
-   * whether the media should start muted or not. Only changes the default state of the
-   * media. `muted` and `defaultMuted` can have different values. {@link Html5#muted} indicates the
-   * current state.
-   *
-   * @method Html5#defaultMuted
-   * @return {boolean}
-   *         - The value of `defaultMuted` from the media element.
-   *         - True indicates that the media should start muted.
-   *         - False indicates that the media should not start muted
-   *
-   * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-defaultmuted}
-   */
-  'defaultMuted',
-  /**
-   * Get the value of `autoplay` from the media element. `autoplay` indicates
-   * that the media should start to play as soon as the page is ready.
-   *
-   * @method Html5#autoplay
-   * @return {boolean}
-   *         - The value of `autoplay` from the media element.
-   *         - True indicates that the media should start as soon as the page loads.
-   *         - False indicates that the media should not start as soon as the page loads.
-   *
-   * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-media-autoplay}
-   */
-  'autoplay',
-  /**
-   * Get the value of `controls` from the media element. `controls` indicates
-   * whether the native media controls should be shown or hidden.
-   *
-   * @method Html5#controls
-   * @return {boolean}
-   *         - The value of `controls` from the media element.
-   *         - True indicates that native controls should be showing.
-   *         - False indicates that native controls should be hidden.
-   *
-   * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-media-controls}
-   */
-  'controls',
-  /**
-   * Get the value of `loop` from the media element. `loop` indicates
-   * that the media should return to the start of the media and continue playing once
-   * it reaches the end.
-   *
-   * @method Html5#loop
-   * @return {boolean}
-   *         - The value of `loop` from the media element.
-   *         - True indicates that playback should seek back to start once
-   *           the end of a media is reached.
-   *         - False indicates that playback should not loop back to the start when the
-   *           end of the media is reached.
-   *
-   * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-media-loop}
-   */
-  'loop',
-  /**
-   * Get the value of `playsinline` from the media element. `playsinline` indicates
-   * to the browser that non-fullscreen playback is preferred when fullscreen
-   * playback is the native default, such as in iOS Safari.
-   *
-   * @method Html5#playsinline
-   * @return {boolean}
-   *         - The value of `playsinline` from the media element.
-   *         - True indicates that the media should play inline.
-   *         - False indicates that the media should not play inline.
-   *
-   * @see [Spec]{@link https://html.spec.whatwg.org/#attr-video-playsinline}
-   */
-  'playsinline'].forEach(function (prop) {
-    Html5.prototype[prop] = function () {
-      return this.el_[prop] || this.el_.hasAttribute(prop);
-    };
-  }); // Wrap native boolean attributes with setters that set both property and attribute
-  // The list is as followed:
-  // setMuted, setDefaultMuted, setAutoplay, setLoop, setPlaysinline
-  // setControls is special-cased above
-
-  [
-  /**
-   * Set the value of `muted` on the media element. `muted` indicates that the current
-   * audio level should be silent.
-   *
-   * @method Html5#setMuted
-   * @param {boolean} muted
-   *        - True if the audio should be set to silent
-   *        - False otherwise
-   *
-   * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-muted}
-   */
-  'muted',
-  /**
-   * Set the value of `defaultMuted` on the media element. `defaultMuted` indicates that the current
-   * audio level should be silent, but will only effect the muted level on initial playback..
-   *
-   * @method Html5.prototype.setDefaultMuted
-   * @param {boolean} defaultMuted
-   *        - True if the audio should be set to silent
-   *        - False otherwise
-   *
-   * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-defaultmuted}
-   */
-  'defaultMuted',
-  /**
-   * Set the value of `autoplay` on the media element. `autoplay` indicates
-   * that the media should start to play as soon as the page is ready.
-   *
-   * @method Html5#setAutoplay
-   * @param {boolean} autoplay
-   *         - True indicates that the media should start as soon as the page loads.
-   *         - False indicates that the media should not start as soon as the page loads.
-   *
-   * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-media-autoplay}
-   */
-  'autoplay',
-  /**
-   * Set the value of `loop` on the media element. `loop` indicates
-   * that the media should return to the start of the media and continue playing once
-   * it reaches the end.
-   *
-   * @method Html5#setLoop
-   * @param {boolean} loop
-   *         - True indicates that playback should seek back to start once
-   *           the end of a media is reached.
-   *         - False indicates that playback should not loop back to the start when the
-   *           end of the media is reached.
-   *
-   * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-media-loop}
-   */
-  'loop',
-  /**
-   * Set the value of `playsinline` from the media element. `playsinline` indicates
-   * to the browser that non-fullscreen playback is preferred when fullscreen
-   * playback is the native default, such as in iOS Safari.
-   *
-   * @method Html5#setPlaysinline
-   * @param {boolean} playsinline
-   *         - True indicates that the media should play inline.
-   *         - False indicates that the media should not play inline.
-   *
-   * @see [Spec]{@link https://html.spec.whatwg.org/#attr-video-playsinline}
-   */
-  'playsinline'].forEach(function (prop) {
-    Html5.prototype['set' + toTitleCase$1(prop)] = function (v) {
-      this.el_[prop] = v;
-
-      if (v) {
-        this.el_.setAttribute(prop, prop);
-      } else {
-        this.el_.removeAttribute(prop);
-      }
-    };
-  }); // Wrap native properties with a getter
-  // The list is as followed
-  // paused, currentTime, buffered, volume, poster, preload, error, seeking
-  // seekable, ended, playbackRate, defaultPlaybackRate, disablePictureInPicture
-  // played, networkState, readyState, videoWidth, videoHeight, crossOrigin
-
-  [
-  /**
-   * Get the value of `paused` from the media element. `paused` indicates whether the media element
-   * is currently paused or not.
-   *
-   * @method Html5#paused
-   * @return {boolean}
-   *         The value of `paused` from the media element.
-   *
-   * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-paused}
-   */
-  'paused',
-  /**
-   * Get the value of `currentTime` from the media element. `currentTime` indicates
-   * the current second that the media is at in playback.
-   *
-   * @method Html5#currentTime
-   * @return {number}
-   *         The value of `currentTime` from the media element.
-   *
-   * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-currenttime}
-   */
-  'currentTime',
-  /**
-   * Get the value of `buffered` from the media element. `buffered` is a `TimeRange`
-   * object that represents the parts of the media that are already downloaded and
-   * available for playback.
-   *
-   * @method Html5#buffered
-   * @return {TimeRange}
-   *         The value of `buffered` from the media element.
-   *
-   * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-buffered}
-   */
-  'buffered',
-  /**
-   * Get the value of `volume` from the media element. `volume` indicates
-   * the current playback volume of audio for a media. `volume` will be a value from 0
-   * (silent) to 1 (loudest and default).
-   *
-   * @method Html5#volume
-   * @return {number}
-   *         The value of `volume` from the media element. Value will be between 0-1.
-   *
-   * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-a-volume}
-   */
-  'volume',
-  /**
-   * Get the value of `poster` from the media element. `poster` indicates
-   * that the url of an image file that can/will be shown when no media data is available.
-   *
-   * @method Html5#poster
-   * @return {string}
-   *         The value of `poster` from the media element. Value will be a url to an
-   *         image.
-   *
-   * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-video-poster}
-   */
-  'poster',
-  /**
-   * Get the value of `preload` from the media element. `preload` indicates
-   * what should download before the media is interacted with. It can have the following
-   * values:
-   * - none: nothing should be downloaded
-   * - metadata: poster and the first few frames of the media may be downloaded to get
-   *   media dimensions and other metadata
-   * - auto: allow the media and metadata for the media to be downloaded before
-   *    interaction
-   *
-   * @method Html5#preload
-   * @return {string}
-   *         The value of `preload` from the media element. Will be 'none', 'metadata',
-   *         or 'auto'.
-   *
-   * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-media-preload}
-   */
-  'preload',
-  /**
-   * Get the value of the `error` from the media element. `error` indicates any
-   * MediaError that may have occurred during playback. If error returns null there is no
-   * current error.
-   *
-   * @method Html5#error
-   * @return {MediaError|null}
-   *         The value of `error` from the media element. Will be `MediaError` if there
-   *         is a current error and null otherwise.
-   *
-   * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-error}
-   */
-  'error',
-  /**
-   * Get the value of `seeking` from the media element. `seeking` indicates whether the
-   * media is currently seeking to a new position or not.
-   *
-   * @method Html5#seeking
-   * @return {boolean}
-   *         - The value of `seeking` from the media element.
-   *         - True indicates that the media is currently seeking to a new position.
-   *         - False indicates that the media is not seeking to a new position at this time.
-   *
-   * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-seeking}
-   */
-  'seeking',
-  /**
-   * Get the value of `seekable` from the media element. `seekable` returns a
-   * `TimeRange` object indicating ranges of time that can currently be `seeked` to.
-   *
-   * @method Html5#seekable
-   * @return {TimeRange}
-   *         The value of `seekable` from the media element. A `TimeRange` object
-   *         indicating the current ranges of time that can be seeked to.
-   *
-   * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-seekable}
-   */
-  'seekable',
-  /**
-   * Get the value of `ended` from the media element. `ended` indicates whether
-   * the media has reached the end or not.
-   *
-   * @method Html5#ended
-   * @return {boolean}
-   *         - The value of `ended` from the media element.
-   *         - True indicates that the media has ended.
-   *         - False indicates that the media has not ended.
-   *
-   * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-ended}
-   */
-  'ended',
-  /**
-   * Get the value of `playbackRate` from the media element. `playbackRate` indicates
-   * the rate at which the media is currently playing back. Examples:
-   *   - if playbackRate is set to 2, media will play twice as fast.
-   *   - if playbackRate is set to 0.5, media will play half as fast.
-   *
-   * @method Html5#playbackRate
-   * @return {number}
-   *         The value of `playbackRate` from the media element. A number indicating
-   *         the current playback speed of the media, where 1 is normal speed.
-   *
-   * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-playbackrate}
-   */
-  'playbackRate',
-  /**
-   * Get the value of `defaultPlaybackRate` from the media element. `defaultPlaybackRate` indicates
-   * the rate at which the media is currently playing back. This value will not indicate the current
-   * `playbackRate` after playback has started, use {@link Html5#playbackRate} for that.
-   *
-   * Examples:
-   *   - if defaultPlaybackRate is set to 2, media will play twice as fast.
-   *   - if defaultPlaybackRate is set to 0.5, media will play half as fast.
-   *
-   * @method Html5.prototype.defaultPlaybackRate
-   * @return {number}
-   *         The value of `defaultPlaybackRate` from the media element. A number indicating
-   *         the current playback speed of the media, where 1 is normal speed.
-   *
-   * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-playbackrate}
-   */
-  'defaultPlaybackRate',
-  /**
-   * Get the value of 'disablePictureInPicture' from the video element.
-   *
-   * @method Html5#disablePictureInPicture
-   * @return {boolean} value
-   *         - The value of `disablePictureInPicture` from the video element.
-   *         - True indicates that the video can't be played in Picture-In-Picture mode
-   *         - False indicates that the video can be played in Picture-In-Picture mode
-   *
-   * @see [Spec]{@link https://w3c.github.io/picture-in-picture/#disable-pip}
-   */
-  'disablePictureInPicture',
-  /**
-   * Get the value of `played` from the media element. `played` returns a `TimeRange`
-   * object representing points in the media timeline that have been played.
-   *
-   * @method Html5#played
-   * @return {TimeRange}
-   *         The value of `played` from the media element. A `TimeRange` object indicating
-   *         the ranges of time that have been played.
-   *
-   * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-played}
-   */
-  'played',
-  /**
-   * Get the value of `networkState` from the media element. `networkState` indicates
-   * the current network state. It returns an enumeration from the following list:
-   * - 0: NETWORK_EMPTY
-   * - 1: NETWORK_IDLE
-   * - 2: NETWORK_LOADING
-   * - 3: NETWORK_NO_SOURCE
-   *
-   * @method Html5#networkState
-   * @return {number}
-   *         The value of `networkState` from the media element. This will be a number
-   *         from the list in the description.
-   *
-   * @see [Spec] {@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-networkstate}
-   */
-  'networkState',
-  /**
-   * Get the value of `readyState` from the media element. `readyState` indicates
-   * the current state of the media element. It returns an enumeration from the
-   * following list:
-   * - 0: HAVE_NOTHING
-   * - 1: HAVE_METADATA
-   * - 2: HAVE_CURRENT_DATA
-   * - 3: HAVE_FUTURE_DATA
-   * - 4: HAVE_ENOUGH_DATA
-   *
-   * @method Html5#readyState
-   * @return {number}
-   *         The value of `readyState` from the media element. This will be a number
-   *         from the list in the description.
-   *
-   * @see [Spec] {@link https://www.w3.org/TR/html5/embedded-content-0.html#ready-states}
-   */
-  'readyState',
-  /**
-   * Get the value of `videoWidth` from the video element. `videoWidth` indicates
-   * the current width of the video in css pixels.
-   *
-   * @method Html5#videoWidth
-   * @return {number}
-   *         The value of `videoWidth` from the video element. This will be a number
-   *         in css pixels.
-   *
-   * @see [Spec] {@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-video-videowidth}
-   */
-  'videoWidth',
-  /**
-   * Get the value of `videoHeight` from the video element. `videoHeight` indicates
-   * the current height of the video in css pixels.
-   *
-   * @method Html5#videoHeight
-   * @return {number}
-   *         The value of `videoHeight` from the video element. This will be a number
-   *         in css pixels.
-   *
-   * @see [Spec] {@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-video-videowidth}
-   */
-  'videoHeight',
-  /**
-   * Get the value of `crossOrigin` from the media element. `crossOrigin` indicates
-   * to the browser that should sent the cookies along with the requests for the
-   * different assets/playlists
-   *
-   * @method Html5#crossOrigin
-   * @return {string}
-   *         - anonymous indicates that the media should not sent cookies.
-   *         - use-credentials indicates that the media should sent cookies along the requests.
-   *
-   * @see [Spec]{@link https://html.spec.whatwg.org/#attr-media-crossorigin}
-   */
-  'crossOrigin'].forEach(function (prop) {
-    Html5.prototype[prop] = function () {
-      return this.el_[prop];
-    };
-  }); // Wrap native properties with a setter in this format:
-  // set + toTitleCase(name)
-  // The list is as follows:
-  // setVolume, setSrc, setPoster, setPreload, setPlaybackRate, setDefaultPlaybackRate,
-  // setDisablePictureInPicture, setCrossOrigin
-
-  [
-  /**
-   * Set the value of `volume` on the media element. `volume` indicates the current
-   * audio level as a percentage in decimal form. This means that 1 is 100%, 0.5 is 50%, and
-   * so on.
-   *
-   * @method Html5#setVolume
-   * @param {number} percentAsDecimal
-   *        The volume percent as a decimal. Valid range is from 0-1.
-   *
-   * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-a-volume}
-   */
-  'volume',
-  /**
-   * Set the value of `src` on the media element. `src` indicates the current
-   * {@link Tech~SourceObject} for the media.
-   *
-   * @method Html5#setSrc
-   * @param {Tech~SourceObject} src
-   *        The source object to set as the current source.
-   *
-   * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-src}
-   */
-  'src',
-  /**
-   * Set the value of `poster` on the media element. `poster` is the url to
-   * an image file that can/will be shown when no media data is available.
-   *
-   * @method Html5#setPoster
-   * @param {string} poster
-   *        The url to an image that should be used as the `poster` for the media
-   *        element.
-   *
-   * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-media-poster}
-   */
-  'poster',
-  /**
-   * Set the value of `preload` on the media element. `preload` indicates
-   * what should download before the media is interacted with. It can have the following
-   * values:
-   * - none: nothing should be downloaded
-   * - metadata: poster and the first few frames of the media may be downloaded to get
-   *   media dimensions and other metadata
-   * - auto: allow the media and metadata for the media to be downloaded before
-   *    interaction
-   *
-   * @method Html5#setPreload
-   * @param {string} preload
-   *         The value of `preload` to set on the media element. Must be 'none', 'metadata',
-   *         or 'auto'.
-   *
-   * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-media-preload}
-   */
-  'preload',
-  /**
-   * Set the value of `playbackRate` on the media element. `playbackRate` indicates
-   * the rate at which the media should play back. Examples:
-   *   - if playbackRate is set to 2, media will play twice as fast.
-   *   - if playbackRate is set to 0.5, media will play half as fast.
-   *
-   * @method Html5#setPlaybackRate
-   * @return {number}
-   *         The value of `playbackRate` from the media element. A number indicating
-   *         the current playback speed of the media, where 1 is normal speed.
-   *
-   * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-playbackrate}
-   */
-  'playbackRate',
-  /**
-   * Set the value of `defaultPlaybackRate` on the media element. `defaultPlaybackRate` indicates
-   * the rate at which the media should play back upon initial startup. Changing this value
-   * after a video has started will do nothing. Instead you should used {@link Html5#setPlaybackRate}.
-   *
-   * Example Values:
-   *   - if playbackRate is set to 2, media will play twice as fast.
-   *   - if playbackRate is set to 0.5, media will play half as fast.
-   *
-   * @method Html5.prototype.setDefaultPlaybackRate
-   * @return {number}
-   *         The value of `defaultPlaybackRate` from the media element. A number indicating
-   *         the current playback speed of the media, where 1 is normal speed.
-   *
-   * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-defaultplaybackrate}
-   */
-  'defaultPlaybackRate',
-  /**
-   * Prevents the browser from suggesting a Picture-in-Picture context menu
-   * or to request Picture-in-Picture automatically in some cases.
-   *
-   * @method Html5#setDisablePictureInPicture
-   * @param {boolean} value
-   *         The true value will disable Picture-in-Picture mode.
-   *
-   * @see [Spec]{@link https://w3c.github.io/picture-in-picture/#disable-pip}
-   */
-  'disablePictureInPicture',
-  /**
-   * Set the value of `crossOrigin` from the media element. `crossOrigin` indicates
-   * to the browser that should sent the cookies along with the requests for the
-   * different assets/playlists
-   *
-   * @method Html5#setCrossOrigin
-   * @param {string} crossOrigin
-   *         - anonymous indicates that the media should not sent cookies.
-   *         - use-credentials indicates that the media should sent cookies along the requests.
-   *
-   * @see [Spec]{@link https://html.spec.whatwg.org/#attr-media-crossorigin}
-   */
-  'crossOrigin'].forEach(function (prop) {
-    Html5.prototype['set' + toTitleCase$1(prop)] = function (v) {
-      this.el_[prop] = v;
-    };
-  }); // wrap native functions with a function
-  // The list is as follows:
-  // pause, load, play
-
-  [
-  /**
-   * A wrapper around the media elements `pause` function. This will call the `HTML5`
-   * media elements `pause` function.
-   *
-   * @method Html5#pause
-   * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-pause}
-   */
-  'pause',
-  /**
-   * A wrapper around the media elements `load` function. This will call the `HTML5`s
-   * media element `load` function.
-   *
-   * @method Html5#load
-   * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-load}
-   */
-  'load',
-  /**
-   * A wrapper around the media elements `play` function. This will call the `HTML5`s
-   * media element `play` function.
-   *
-   * @method Html5#play
-   * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-play}
-   */
-  'play'].forEach(function (prop) {
-    Html5.prototype[prop] = function () {
-      return this.el_[prop]();
-    };
-  });
-  Tech.withSourceHandlers(Html5);
-  /**
-   * Native source handler for Html5, simply passes the source to the media element.
-   *
-   * @property {Tech~SourceObject} source
-   *        The source object
-   *
-   * @property {Html5} tech
-   *        The instance of the HTML5 tech.
-   */
-
-  Html5.nativeSourceHandler = {};
-  /**
-   * Check if the media element can play the given mime type.
-   *
-   * @param {string} type
-   *        The mimetype to check
-   *
-   * @return {string}
-   *         'probably', 'maybe', or '' (empty string)
-   */
-
-  Html5.nativeSourceHandler.canPlayType = function (type) {
-    // IE without MediaPlayer throws an error (#519)
-    try {
-      return Html5.TEST_VID.canPlayType(type);
-    } catch (e) {
-      return '';
-    }
-  };
-  /**
-   * Check if the media element can handle a source natively.
-   *
-   * @param {Tech~SourceObject} source
-   *         The source object
-   *
-   * @param {Object} [options]
-   *         Options to be passed to the tech.
-   *
-   * @return {string}
-   *         'probably', 'maybe', or '' (empty string).
-   */
-
-
-  Html5.nativeSourceHandler.canHandleSource = function (source, options) {
-    // If a type was provided we should rely on that
-    if (source.type) {
-      return Html5.nativeSourceHandler.canPlayType(source.type); // If no type, fall back to checking 'video/[EXTENSION]'
-    } else if (source.src) {
-      var ext = getFileExtension(source.src);
-      return Html5.nativeSourceHandler.canPlayType("video/" + ext);
-    }
-
-    return '';
-  };
-  /**
-   * Pass the source to the native media element.
-   *
-   * @param {Tech~SourceObject} source
-   *        The source object
-   *
-   * @param {Html5} tech
-   *        The instance of the Html5 tech
-   *
-   * @param {Object} [options]
-   *        The options to pass to the source
-   */
-
-
-  Html5.nativeSourceHandler.handleSource = function (source, tech, options) {
-    tech.setSrc(source.src);
-  };
-  /**
-   * A noop for the native dispose function, as cleanup is not needed.
-   */
-
-
-  Html5.nativeSourceHandler.dispose = function () {}; // Register the native source handler
-
-
-  Html5.registerSourceHandler(Html5.nativeSourceHandler);
-  Tech.registerTech('Html5', Html5);
-
-  // on the player when they happen
-
-  var TECH_EVENTS_RETRIGGER = [
-  /**
-   * Fired while the user agent is downloading media data.
-   *
-   * @event Player#progress
-   * @type {EventTarget~Event}
-   */
-
-  /**
-   * Retrigger the `progress` event that was triggered by the {@link Tech}.
-   *
-   * @private
-   * @method Player#handleTechProgress_
-   * @fires Player#progress
-   * @listens Tech#progress
-   */
-  'progress',
-  /**
-   * Fires when the loading of an audio/video is aborted.
-   *
-   * @event Player#abort
-   * @type {EventTarget~Event}
-   */
-
-  /**
-   * Retrigger the `abort` event that was triggered by the {@link Tech}.
-   *
-   * @private
-   * @method Player#handleTechAbort_
-   * @fires Player#abort
-   * @listens Tech#abort
-   */
-  'abort',
-  /**
-   * Fires when the browser is intentionally not getting media data.
-   *
-   * @event Player#suspend
-   * @type {EventTarget~Event}
-   */
-
-  /**
-   * Retrigger the `suspend` event that was triggered by the {@link Tech}.
-   *
-   * @private
-   * @method Player#handleTechSuspend_
-   * @fires Player#suspend
-   * @listens Tech#suspend
-   */
-  'suspend',
-  /**
-   * Fires when the current playlist is empty.
-   *
-   * @event Player#emptied
-   * @type {EventTarget~Event}
-   */
-
-  /**
-   * Retrigger the `emptied` event that was triggered by the {@link Tech}.
-   *
-   * @private
-   * @method Player#handleTechEmptied_
-   * @fires Player#emptied
-   * @listens Tech#emptied
-   */
-  'emptied',
-  /**
-   * Fires when the browser is trying to get media data, but data is not available.
-   *
-   * @event Player#stalled
-   * @type {EventTarget~Event}
-   */
-
-  /**
-   * Retrigger the `stalled` event that was triggered by the {@link Tech}.
-   *
-   * @private
-   * @method Player#handleTechStalled_
-   * @fires Player#stalled
-   * @listens Tech#stalled
-   */
-  'stalled',
-  /**
-   * Fires when the browser has loaded meta data for the audio/video.
-   *
-   * @event Player#loadedmetadata
-   * @type {EventTarget~Event}
-   */
-
-  /**
-   * Retrigger the `loadedmetadata` event that was triggered by the {@link Tech}.
-   *
-   * @private
-   * @method Player#handleTechLoadedmetadata_
-   * @fires Player#loadedmetadata
-   * @listens Tech#loadedmetadata
-   */
-  'loadedmetadata',
-  /**
-   * Fires when the browser has loaded the current frame of the audio/video.
-   *
-   * @event Player#loadeddata
-   * @type {event}
-   */
-
-  /**
-   * Retrigger the `loadeddata` event that was triggered by the {@link Tech}.
-   *
-   * @private
-   * @method Player#handleTechLoaddeddata_
-   * @fires Player#loadeddata
-   * @listens Tech#loadeddata
-   */
-  'loadeddata',
-  /**
-   * Fires when the current playback position has changed.
-   *
-   * @event Player#timeupdate
-   * @type {event}
-   */
-
-  /**
-   * Retrigger the `timeupdate` event that was triggered by the {@link Tech}.
-   *
-   * @private
-   * @method Player#handleTechTimeUpdate_
-   * @fires Player#timeupdate
-   * @listens Tech#timeupdate
-   */
-  'timeupdate',
-  /**
-   * Fires when the video's intrinsic dimensions change
-   *
-   * @event Player#resize
-   * @type {event}
-   */
-
-  /**
-   * Retrigger the `resize` event that was triggered by the {@link Tech}.
-   *
-   * @private
-   * @method Player#handleTechResize_
-   * @fires Player#resize
-   * @listens Tech#resize
-   */
-  'resize',
-  /**
-   * Fires when the volume has been changed
-   *
-   * @event Player#volumechange
-   * @type {event}
-   */
-
-  /**
-   * Retrigger the `volumechange` event that was triggered by the {@link Tech}.
-   *
-   * @private
-   * @method Player#handleTechVolumechange_
-   * @fires Player#volumechange
-   * @listens Tech#volumechange
-   */
-  'volumechange',
-  /**
-   * Fires when the text track has been changed
-   *
-   * @event Player#texttrackchange
-   * @type {event}
-   */
-
-  /**
-   * Retrigger the `texttrackchange` event that was triggered by the {@link Tech}.
-   *
-   * @private
-   * @method Player#handleTechTexttrackchange_
-   * @fires Player#texttrackchange
-   * @listens Tech#texttrackchange
-   */
-  'texttrackchange']; // events to queue when playback rate is zero
-  // this is a hash for the sole purpose of mapping non-camel-cased event names
-  // to camel-cased function names
-
-  var TECH_EVENTS_QUEUE = {
-    canplay: 'CanPlay',
-    canplaythrough: 'CanPlayThrough',
-    playing: 'Playing',
-    seeked: 'Seeked'
-  };
-  var BREAKPOINT_ORDER = ['tiny', 'xsmall', 'small', 'medium', 'large', 'xlarge', 'huge'];
-  var BREAKPOINT_CLASSES = {}; // grep: vjs-layout-tiny
-  // grep: vjs-layout-x-small
-  // grep: vjs-layout-small
-  // grep: vjs-layout-medium
-  // grep: vjs-layout-large
-  // grep: vjs-layout-x-large
-  // grep: vjs-layout-huge
-
-  BREAKPOINT_ORDER.forEach(function (k) {
-    var v = k.charAt(0) === 'x' ? "x-" + k.substring(1) : k;
-    BREAKPOINT_CLASSES[k] = "vjs-layout-" + v;
-  });
-  var DEFAULT_BREAKPOINTS = {
-    tiny: 210,
-    xsmall: 320,
-    small: 425,
-    medium: 768,
-    large: 1440,
-    xlarge: 2560,
-    huge: Infinity
-  };
-  /**
-   * An instance of the `Player` class is created when any of the Video.js setup methods
-   * are used to initialize a video.
-   *
-   * After an instance has been created it can be accessed globally in two ways:
-   * 1. By calling `videojs('example_video_1');`
-   * 2. By using it directly via  `videojs.players.example_video_1;`
-   *
-   * @extends Component
-   */
-
-  var Player = /*#__PURE__*/function (_Component) {
-    inheritsLoose(Player, _Component);
-
-    /**
-     * Create an instance of this class.
-     *
-     * @param {Element} tag
-     *        The original video DOM element used for configuring options.
-     *
-     * @param {Object} [options]
-     *        Object of option names and values.
-     *
-     * @param {Component~ReadyCallback} [ready]
-     *        Ready callback function.
-     */
-    function Player(tag, options, ready) {
-      var _this;
-
-      // Make sure tag ID exists
-      tag.id = tag.id || options.id || "vjs_video_" + newGUID(); // Set Options
-      // The options argument overrides options set in the video tag
-      // which overrides globally set options.
-      // This latter part coincides with the load order
-      // (tag must exist before Player)
-
-      options = assign(Player.getTagSettings(tag), options); // Delay the initialization of children because we need to set up
-      // player properties first, and can't use `this` before `super()`
-
-      options.initChildren = false; // Same with creating the element
-
-      options.createEl = false; // don't auto mixin the evented mixin
-
-      options.evented = false; // we don't want the player to report touch activity on itself
-      // see enableTouchActivity in Component
-
-      options.reportTouchActivity = false; // If language is not set, get the closest lang attribute
-
-      if (!options.language) {
-        if (typeof tag.closest === 'function') {
-          var closest = tag.closest('[lang]');
-
-          if (closest && closest.getAttribute) {
-            options.language = closest.getAttribute('lang');
-          }
-        } else {
-          var element = tag;
-
-          while (element && element.nodeType === 1) {
-            if (getAttributes(element).hasOwnProperty('lang')) {
-              options.language = element.getAttribute('lang');
-              break;
+        /**
+         * Create the `ClickableComponent`s DOM element.
+         *
+         * @param {string} [tag=div]
+         *        The element's node type.
+         *
+         * @param {Object} [props={}]
+         *        An object of properties that should be set on the element.
+         *
+         * @param {Object} [attributes={}]
+         *        An object of attributes that should be set on the element.
+         *
+         * @return {Element}
+         *         The element that gets created.
+         */
+        createEl(tag = 'div', props = {}, attributes = {}) {
+            props = Object.assign({
+                className: this.buildCSSClass(),
+                tabIndex: 0
+            }, props);
+            if (tag === 'button') {
+                log$1.error(`Creating a ClickableComponent with an HTML element of ${tag} is not supported; use a Button instead.`);
             }
 
-            element = element.parentNode;
-          }
+            // Add ARIA attributes for clickable element which is not a native HTML button
+            attributes = Object.assign({
+                role: 'button'
+            }, attributes);
+            this.tabIndex_ = props.tabIndex;
+            const el = createEl(tag, props, attributes);
+            el.appendChild(createEl('span', {
+                className: 'vjs-icon-placeholder'
+            }, {
+                'aria-hidden': true
+            }));
+            this.createControlTextEl(el);
+            return el;
+        }
+        dispose() {
+            // remove controlTextEl_ on dispose
+            this.controlTextEl_ = null;
+            super.dispose();
+        }
+
+        /**
+         * Create a control text element on this `ClickableComponent`
+         *
+         * @param {Element} [el]
+         *        Parent element for the control text.
+         *
+         * @return {Element}
+         *         The control text element that gets created.
+         */
+        createControlTextEl(el) {
+            this.controlTextEl_ = createEl('span', {
+                className: 'vjs-control-text'
+            }, {
+                // let the screen reader user know that the text of the element may change
+                'aria-live': 'polite'
+            });
+            if (el) {
+                el.appendChild(this.controlTextEl_);
+            }
+            this.controlText(this.controlText_, el);
+            return this.controlTextEl_;
+        }
+
+        /**
+         * Get or set the localize text to use for the controls on the `ClickableComponent`.
+         *
+         * @param {string} [text]
+         *        Control text for element.
+         *
+         * @param {Element} [el=this.el()]
+         *        Element to set the title on.
+         *
+         * @return {string}
+         *         - The control text when getting
+         */
+        controlText(text, el = this.el()) {
+            if (text === undefined) {
+                return this.controlText_ || 'Need Text';
+            }
+            const localizedText = this.localize(text);
+
+            /** @protected */
+            this.controlText_ = text;
+            textContent(this.controlTextEl_, localizedText);
+            if (!this.nonIconControl && !this.player_.options_.noUITitleAttributes) {
+                // Set title attribute if only an icon is shown
+                el.setAttribute('title', localizedText);
+            }
+        }
+
+        /**
+         * Builds the default DOM `className`.
+         *
+         * @return {string}
+         *         The DOM `className` for this object.
+         */
+        buildCSSClass() {
+            return `vjs-control vjs-button ${super.buildCSSClass()}`;
+        }
+
+        /**
+         * Enable this `ClickableComponent`
+         */
+        enable() {
+            if (!this.enabled_) {
+                this.enabled_ = true;
+                this.removeClass('vjs-disabled');
+                this.el_.setAttribute('aria-disabled', 'false');
+                if (typeof this.tabIndex_ !== 'undefined') {
+                    this.el_.setAttribute('tabIndex', this.tabIndex_);
+                }
+                this.on(['tap', 'click'], this.handleClick_);
+                this.on('keydown', this.handleKeyDown_);
+            }
+        }
+
+        /**
+         * Disable this `ClickableComponent`
+         */
+        disable() {
+            this.enabled_ = false;
+            this.addClass('vjs-disabled');
+            this.el_.setAttribute('aria-disabled', 'true');
+            if (typeof this.tabIndex_ !== 'undefined') {
+                this.el_.removeAttribute('tabIndex');
+            }
+            this.off('mouseover', this.handleMouseOver_);
+            this.off('mouseout', this.handleMouseOut_);
+            this.off(['tap', 'click'], this.handleClick_);
+            this.off('keydown', this.handleKeyDown_);
+        }
+
+        /**
+         * Handles language change in ClickableComponent for the player in components
+         *
+         *
+         */
+        handleLanguagechange() {
+            this.controlText(this.controlText_);
+        }
+
+        /**
+         * Event handler that is called when a `ClickableComponent` receives a
+         * `click` or `tap` event.
+         *
+         * @param {Event} event
+         *        The `tap` or `click` event that caused this function to be called.
+         *
+         * @listens tap
+         * @listens click
+         * @abstract
+         */
+        handleClick(event) {
+            if (this.options_.clickHandler) {
+                this.options_.clickHandler.call(this, arguments);
+            }
+        }
+
+        /**
+         * Event handler that is called when a `ClickableComponent` receives a
+         * `keydown` event.
+         *
+         * By default, if the key is Space or Enter, it will trigger a `click` event.
+         *
+         * @param {Event} event
+         *        The `keydown` event that caused this function to be called.
+         *
+         * @listens keydown
+         */
+        handleKeyDown(event) {
+            // Support Space or Enter key operation to fire a click event. Also,
+            // prevent the event from propagating through the DOM and triggering
+            // Player hotkeys.
+            if (keycode.isEventKey(event, 'Space') || keycode.isEventKey(event, 'Enter')) {
+                event.preventDefault();
+                event.stopPropagation();
+                this.trigger('click');
+            } else {
+                // Pass keypress handling up for unsupported keys
+                super.handleKeyDown(event);
+            }
         }
-      } // Run base component initializing with new options
-
-
-      _this = _Component.call(this, null, options, ready) || this; // Create bound methods for document listeners.
-
-      _this.boundDocumentFullscreenChange_ = function (e) {
-        return _this.documentFullscreenChange_(e);
-      };
-
-      _this.boundFullWindowOnEscKey_ = function (e) {
-        return _this.fullWindowOnEscKey(e);
-      };
-
-      _this.boundUpdateStyleEl_ = function (e) {
-        return _this.updateStyleEl_(e);
-      };
-
-      _this.boundApplyInitTime_ = function (e) {
-        return _this.applyInitTime_(e);
-      };
-
-      _this.boundUpdateCurrentBreakpoint_ = function (e) {
-        return _this.updateCurrentBreakpoint_(e);
-      };
-
-      _this.boundHandleTechClick_ = function (e) {
-        return _this.handleTechClick_(e);
-      };
-
-      _this.boundHandleTechDoubleClick_ = function (e) {
-        return _this.handleTechDoubleClick_(e);
-      };
-
-      _this.boundHandleTechTouchStart_ = function (e) {
-        return _this.handleTechTouchStart_(e);
-      };
-
-      _this.boundHandleTechTouchMove_ = function (e) {
-        return _this.handleTechTouchMove_(e);
-      };
-
-      _this.boundHandleTechTouchEnd_ = function (e) {
-        return _this.handleTechTouchEnd_(e);
-      };
-
-      _this.boundHandleTechTap_ = function (e) {
-        return _this.handleTechTap_(e);
-      }; // default isFullscreen_ to false
-
-
-      _this.isFullscreen_ = false; // create logger
-
-      _this.log = createLogger(_this.id_); // Hold our own reference to fullscreen api so it can be mocked in tests
-
-      _this.fsApi_ = FullscreenApi; // Tracks when a tech changes the poster
-
-      _this.isPosterFromTech_ = false; // Holds callback info that gets queued when playback rate is zero
-      // and a seek is happening
-
-      _this.queuedCallbacks_ = []; // Turn off API access because we're loading a new tech that might load asynchronously
-
-      _this.isReady_ = false; // Init state hasStarted_
-
-      _this.hasStarted_ = false; // Init state userActive_
-
-      _this.userActive_ = false; // Init debugEnabled_
-
-      _this.debugEnabled_ = false; // Init state audioOnlyMode_
-
-      _this.audioOnlyMode_ = false; // Init state audioPosterMode_
-
-      _this.audioPosterMode_ = false; // Init state audioOnlyCache_
-
-      _this.audioOnlyCache_ = {
-        playerHeight: null,
-        hiddenChildren: []
-      }; // if the global option object was accidentally blown away by
-      // someone, bail early with an informative error
-
-      if (!_this.options_ || !_this.options_.techOrder || !_this.options_.techOrder.length) {
-        throw new Error('No techOrder specified. Did you overwrite ' + 'videojs.options instead of just changing the ' + 'properties you want to override?');
-      } // Store the original tag used to set options
-
-
-      _this.tag = tag; // Store the tag attributes used to restore html5 element
-
-      _this.tagAttributes = tag && getAttributes(tag); // Update current language
-
-      _this.language(_this.options_.language); // Update Supported Languages
-
-
-      if (options.languages) {
-        // Normalise player option languages to lowercase
-        var languagesToLower = {};
-        Object.getOwnPropertyNames(options.languages).forEach(function (name) {
-          languagesToLower[name.toLowerCase()] = options.languages[name];
-        });
-        _this.languages_ = languagesToLower;
-      } else {
-        _this.languages_ = Player.prototype.options_.languages;
-      }
-
-      _this.resetCache_(); // Set poster
-
-
-      _this.poster_ = options.poster || ''; // Set controls
-
-      _this.controls_ = !!options.controls; // Original tag settings stored in options
-      // now remove immediately so native controls don't flash.
-      // May be turned back on by HTML5 tech if nativeControlsForTouch is true
-
-      tag.controls = false;
-      tag.removeAttribute('controls');
-      _this.changingSrc_ = false;
-      _this.playCallbacks_ = [];
-      _this.playTerminatedQueue_ = []; // the attribute overrides the option
-
-      if (tag.hasAttribute('autoplay')) {
-        _this.autoplay(true);
-      } else {
-        // otherwise use the setter to validate and
-        // set the correct value.
-        _this.autoplay(_this.options_.autoplay);
-      } // check plugins
-
-
-      if (options.plugins) {
-        Object.keys(options.plugins).forEach(function (name) {
-          if (typeof _this[name] !== 'function') {
-            throw new Error("plugin \"" + name + "\" does not exist");
-          }
-        });
-      }
-      /*
-       * Store the internal state of scrubbing
-       *
-       * @private
-       * @return {Boolean} True if the user is scrubbing
-       */
-
-
-      _this.scrubbing_ = false;
-      _this.el_ = _this.createEl(); // Make this an evented object and use `el_` as its event bus.
-
-      evented(assertThisInitialized(_this), {
-        eventBusKey: 'el_'
-      }); // listen to document and player fullscreenchange handlers so we receive those events
-      // before a user can receive them so we can update isFullscreen appropriately.
-      // make sure that we listen to fullscreenchange events before everything else to make sure that
-      // our isFullscreen method is updated properly for internal components as well as external.
-
-      if (_this.fsApi_.requestFullscreen) {
-        on(document, _this.fsApi_.fullscreenchange, _this.boundDocumentFullscreenChange_);
-
-        _this.on(_this.fsApi_.fullscreenchange, _this.boundDocumentFullscreenChange_);
-      }
-
-      if (_this.fluid_) {
-        _this.on(['playerreset', 'resize'], _this.boundUpdateStyleEl_);
-      } // We also want to pass the original player options to each component and plugin
-      // as well so they don't need to reach back into the player for options later.
-      // We also need to do another copy of this.options_ so we don't end up with
-      // an infinite loop.
-
-
-      var playerOptionsCopy = mergeOptions$3(_this.options_); // Load plugins
-
-      if (options.plugins) {
-        Object.keys(options.plugins).forEach(function (name) {
-          _this[name](options.plugins[name]);
-        });
-      } // Enable debug mode to fire debugon event for all plugins.
-
-
-      if (options.debug) {
-        _this.debug(true);
-      }
-
-      _this.options_.playerOptions = playerOptionsCopy;
-      _this.middleware_ = [];
-
-      _this.playbackRates(options.playbackRates);
-
-      _this.initChildren(); // Set isAudio based on whether or not an audio tag was used
-
-
-      _this.isAudio(tag.nodeName.toLowerCase() === 'audio'); // Update controls className. Can't do this when the controls are initially
-      // set because the element doesn't exist yet.
-
-
-      if (_this.controls()) {
-        _this.addClass('vjs-controls-enabled');
-      } else {
-        _this.addClass('vjs-controls-disabled');
-      } // Set ARIA label and region role depending on player type
-
-
-      _this.el_.setAttribute('role', 'region');
-
-      if (_this.isAudio()) {
-        _this.el_.setAttribute('aria-label', _this.localize('Audio Player'));
-      } else {
-        _this.el_.setAttribute('aria-label', _this.localize('Video Player'));
-      }
-
-      if (_this.isAudio()) {
-        _this.addClass('vjs-audio');
-      }
-
-      if (_this.flexNotSupported_()) {
-        _this.addClass('vjs-no-flex');
-      } // TODO: Make this smarter. Toggle user state between touching/mousing
-      // using events, since devices can have both touch and mouse events.
-      // TODO: Make this check be performed again when the window switches between monitors
-      // (See https://github.com/videojs/video.js/issues/5683)
-
-
-      if (TOUCH_ENABLED) {
-        _this.addClass('vjs-touch-enabled');
-      } // iOS Safari has broken hover handling
-
-
-      if (!IS_IOS) {
-        _this.addClass('vjs-workinghover');
-      } // Make player easily findable by ID
-
-
-      Player.players[_this.id_] = assertThisInitialized(_this); // Add a major version class to aid css in plugins
-
-      var majorVersion = version$5.split('.')[0];
-
-      _this.addClass("vjs-v" + majorVersion); // When the player is first initialized, trigger activity so components
-      // like the control bar show themselves if needed
-
-
-      _this.userActive(true);
-
-      _this.reportUserActivity();
-
-      _this.one('play', function (e) {
-        return _this.listenForUserActivity_(e);
-      });
-
-      _this.on('stageclick', function (e) {
-        return _this.handleStageClick_(e);
-      });
-
-      _this.on('keydown', function (e) {
-        return _this.handleKeyDown(e);
-      });
-
-      _this.on('languagechange', function (e) {
-        return _this.handleLanguagechange(e);
-      });
-
-      _this.breakpoints(_this.options_.breakpoints);
-
-      _this.responsive(_this.options_.responsive); // Calling both the audio mode methods after the player is fully
-      // setup to be able to listen to the events triggered by them
-
-
-      _this.on('ready', function () {
-        // Calling the audioPosterMode method first so that
-        // the audioOnlyMode can take precedence when both options are set to true
-        _this.audioPosterMode(_this.options_.audioPosterMode);
-
-        _this.audioOnlyMode(_this.options_.audioOnlyMode);
-      });
-
-      return _this;
     }
+    Component$1.registerComponent('ClickableComponent', ClickableComponent);
+
     /**
-     * Destroys the video player and does any necessary cleanup.
-     *
-     * This is especially helpful if you are dynamically adding and removing videos
-     * to/from the DOM.
-     *
-     * @fires Player#dispose
+     * @file poster-image.js
      */
 
-
-    var _proto = Player.prototype;
-
-    _proto.dispose = function dispose() {
-      var _this2 = this;
-
-      /**
-       * Called when the player is being disposed of.
-       *
-       * @event Player#dispose
-       * @type {EventTarget~Event}
-       */
-      this.trigger('dispose'); // prevent dispose from being called twice
-
-      this.off('dispose'); // Make sure all player-specific document listeners are unbound. This is
-
-      off(document, this.fsApi_.fullscreenchange, this.boundDocumentFullscreenChange_);
-      off(document, 'keydown', this.boundFullWindowOnEscKey_);
-
-      if (this.styleEl_ && this.styleEl_.parentNode) {
-        this.styleEl_.parentNode.removeChild(this.styleEl_);
-        this.styleEl_ = null;
-      } // Kill reference to this player
-
-
-      Player.players[this.id_] = null;
-
-      if (this.tag && this.tag.player) {
-        this.tag.player = null;
-      }
-
-      if (this.el_ && this.el_.player) {
-        this.el_.player = null;
-      }
-
-      if (this.tech_) {
-        this.tech_.dispose();
-        this.isPosterFromTech_ = false;
-        this.poster_ = '';
-      }
-
-      if (this.playerElIngest_) {
-        this.playerElIngest_ = null;
-      }
-
-      if (this.tag) {
-        this.tag = null;
-      }
-
-      clearCacheForPlayer(this); // remove all event handlers for track lists
-      // all tracks and track listeners are removed on
-      // tech dispose
-
-      ALL.names.forEach(function (name) {
-        var props = ALL[name];
-
-        var list = _this2[props.getterName](); // if it is not a native list
-        // we have to manually remove event listeners
-
-
-        if (list && list.off) {
-          list.off();
-        }
-      }); // the actual .el_ is removed here, or replaced if
-
-      _Component.prototype.dispose.call(this, {
-        restoreEl: this.options_.restoreEl
-      });
-    }
     /**
-     * Create the `Player`'s DOM element.
+     * A `ClickableComponent` that handles showing the poster image for the player.
      *
-     * @return {Element}
-     *         The DOM element that gets created.
+     * @extends ClickableComponent
      */
-    ;
-
-    _proto.createEl = function createEl() {
-      var tag = this.tag;
-      var el;
-      var playerElIngest = this.playerElIngest_ = tag.parentNode && tag.parentNode.hasAttribute && tag.parentNode.hasAttribute('data-vjs-player');
-      var divEmbed = this.tag.tagName.toLowerCase() === 'video-js';
-
-      if (playerElIngest) {
-        el = this.el_ = tag.parentNode;
-      } else if (!divEmbed) {
-        el = this.el_ = _Component.prototype.createEl.call(this, 'div');
-      } // Copy over all the attributes from the tag, including ID and class
-      // ID will now reference player box, not the video tag
-
-
-      var attrs = getAttributes(tag);
-
-      if (divEmbed) {
-        el = this.el_ = tag;
-        tag = this.tag = document.createElement('video');
-
-        while (el.children.length) {
-          tag.appendChild(el.firstChild);
+    class PosterImage extends ClickableComponent {
+        /**
+         * Create an instance of this class.
+         *
+         * @param { import('./player').default } player
+         *        The `Player` that this class should attach to.
+         *
+         * @param {Object} [options]
+         *        The key/value store of player options.
+         */
+        constructor(player, options) {
+            super(player, options);
+            this.update();
+            this.update_ = e => this.update(e);
+            player.on('posterchange', this.update_);
         }
 
-        if (!hasClass(el, 'video-js')) {
-          addClass(el, 'video-js');
+        /**
+         * Clean up and dispose of the `PosterImage`.
+         */
+        dispose() {
+            this.player().off('posterchange', this.update_);
+            super.dispose();
         }
 
-        el.appendChild(tag);
-        playerElIngest = this.playerElIngest_ = el; // move properties over from our custom `video-js` element
-        // to our new `video` element. This will move things like
-        // `src` or `controls` that were set via js before the player
-        // was initialized.
-
-        Object.keys(el).forEach(function (k) {
-          try {
-            tag[k] = el[k];
-          } catch (e) {// we got a a property like outerHTML which we can't actually copy, ignore it
-          }
-        });
-      } // set tabindex to -1 to remove the video element from the focus order
-
-
-      tag.setAttribute('tabindex', '-1');
-      attrs.tabindex = '-1'; // Workaround for #4583 (JAWS+IE doesn't announce BPB or play button), and
-      // for the same issue with Chrome (on Windows) with JAWS.
-      // See https://github.com/FreedomScientific/VFO-standards-support/issues/78
-      // Note that we can't detect if JAWS is being used, but this ARIA attribute
-      //  doesn't change behavior of IE11 or Chrome if JAWS is not being used
-
-      if (IE_VERSION || IS_CHROME && IS_WINDOWS) {
-        tag.setAttribute('role', 'application');
-        attrs.role = 'application';
-      } // Remove width/height attrs from tag so CSS can make it 100% width/height
-
-
-      tag.removeAttribute('width');
-      tag.removeAttribute('height');
-
-      if ('width' in attrs) {
-        delete attrs.width;
-      }
-
-      if ('height' in attrs) {
-        delete attrs.height;
-      }
-
-      Object.getOwnPropertyNames(attrs).forEach(function (attr) {
-        // don't copy over the class attribute to the player element when we're in a div embed
-        // the class is already set up properly in the divEmbed case
-        // and we want to make sure that the `video-js` class doesn't get lost
-        if (!(divEmbed && attr === 'class')) {
-          el.setAttribute(attr, attrs[attr]);
+        /**
+         * Create the `PosterImage`s DOM element.
+         *
+         * @return {Element}
+         *         The element that gets created.
+         */
+        createEl() {
+            // The el is an empty div to keep position in the DOM
+            // A picture and img el will be inserted when a source is set
+            return createEl('div', {
+                className: 'vjs-poster'
+            });
         }
 
-        if (divEmbed) {
-          tag.setAttribute(attr, attrs[attr]);
+        /**
+         * Get or set the `PosterImage`'s crossOrigin option.
+         *
+         * @param {string|null} [value]
+         *        The value to set the crossOrigin to. If an argument is
+         *        given, must be one of `'anonymous'` or `'use-credentials'`, or 'null'.
+         *
+         * @return {string|null}
+         *         - The current crossOrigin value of the `Player` when getting.
+         *         - undefined when setting
+         */
+        crossOrigin(value) {
+            // `null` can be set to unset a value
+            if (typeof value === 'undefined') {
+                if (this.$('img')) {
+                    // If the poster's element exists, give its value
+                    return this.$('img').crossOrigin;
+                } else if (this.player_.tech_ && this.player_.tech_.isReady_) {
+                    // If not but the tech is ready, query the tech
+                    return this.player_.crossOrigin();
+                }
+                // Otherwise check options as the  poster is usually set before the state of crossorigin
+                // can be retrieved by the getter
+                return this.player_.options_.crossOrigin || this.player_.options_.crossorigin || null;
+            }
+            if (value !== null && value !== 'anonymous' && value !== 'use-credentials') {
+                this.player_.log.warn(`crossOrigin must be null,  "anonymous" or "use-credentials", given "${value}"`);
+                return;
+            }
+            if (this.$('img')) {
+                this.$('img').crossOrigin = value;
+            }
+            return;
         }
-      }); // Update tag id/class for use as HTML5 playback tech
-      // Might think we should do this after embedding in container so .vjs-tech class
-      // doesn't flash 100% width/height, but class only applies with .video-js parent
 
-      tag.playerId = tag.id;
-      tag.id += '_html5_api';
-      tag.className = 'vjs-tech'; // Make player findable on elements
+        /**
+         * An {@link EventTarget~EventListener} for {@link Player#posterchange} events.
+         *
+         * @listens Player#posterchange
+         *
+         * @param {Event} [event]
+         *        The `Player#posterchange` event that triggered this function.
+         */
+        update(event) {
+            const url = this.player().poster();
+            this.setSrc(url);
 
-      tag.player = el.player = this; // Default state of video is paused
+            // If there's no poster source we should display:none on this component
+            // so it's not still clickable or right-clickable
+            if (url) {
+                this.show();
+            } else {
+                this.hide();
+            }
+        }
 
-      this.addClass('vjs-paused'); // Add a style element in the player that we'll use to set the width/height
-      // of the player in a way that's still overrideable by CSS, just like the
-      // video element
+        /**
+         * Set the source of the `PosterImage` depending on the display method. (Re)creates
+         * the inner picture and img elementss when needed.
+         *
+         * @param {string} [url]
+         *        The URL to the source for the `PosterImage`. If not specified or falsy,
+         *        any source and ant inner picture/img are removed.
+         */
+        setSrc(url) {
+            if (!url) {
+                this.el_.textContent = '';
+                return;
+            }
+            if (!this.$('img')) {
+                this.el_.appendChild(createEl('picture', {
+                    className: 'vjs-poster',
+                    // Don't want poster to be tabbable.
+                    tabIndex: -1
+                }, {}, createEl('img', {
+                    loading: 'lazy',
+                    crossOrigin: this.crossOrigin()
+                }, {
+                    alt: ''
+                })));
+            }
+            this.$('img').src = url;
+        }
 
-      if (window.VIDEOJS_NO_DYNAMIC_STYLE !== true) {
-        this.styleEl_ = createStyleElement('vjs-styles-dimensions');
-        var defaultsStyleEl = $('.vjs-styles-defaults');
-        var head = $('head');
-        head.insertBefore(this.styleEl_, defaultsStyleEl ? defaultsStyleEl.nextSibling : head.firstChild);
-      }
-
-      this.fill_ = false;
-      this.fluid_ = false; // Pass in the width/height/aspectRatio options which will update the style el
-
-      this.width(this.options_.width);
-      this.height(this.options_.height);
-      this.fill(this.options_.fill);
-      this.fluid(this.options_.fluid);
-      this.aspectRatio(this.options_.aspectRatio); // support both crossOrigin and crossorigin to reduce confusion and issues around the name
-
-      this.crossOrigin(this.options_.crossOrigin || this.options_.crossorigin); // Hide any links within the video/audio tag,
-      // because IE doesn't hide them completely from screen readers.
-
-      var links = tag.getElementsByTagName('a');
-
-      for (var i = 0; i < links.length; i++) {
-        var linkEl = links.item(i);
-        addClass(linkEl, 'vjs-hidden');
-        linkEl.setAttribute('hidden', 'hidden');
-      } // insertElFirst seems to cause the networkState to flicker from 3 to 2, so
-      // keep track of the original for later so we can know if the source originally failed
-
-
-      tag.initNetworkState_ = tag.networkState; // Wrap video tag in div (el/box) container
-
-      if (tag.parentNode && !playerElIngest) {
-        tag.parentNode.insertBefore(el, tag);
-      } // insert the tag as the first child of the player element
-      // then manually add it to the children array so that this.addChild
-      // will work properly for other components
-      //
-      // Breaks iPhone, fixed in HTML5 setup.
-
-
-      prependTo(tag, el);
-      this.children_.unshift(tag); // Set lang attr on player to ensure CSS :lang() in consistent with player
-      // if it's been set to something different to the doc
-
-      this.el_.setAttribute('lang', this.language_);
-      this.el_.setAttribute('translate', 'no');
-      this.el_ = el;
-      return el;
+        /**
+         * An {@link EventTarget~EventListener} for clicks on the `PosterImage`. See
+         * {@link ClickableComponent#handleClick} for instances where this will be triggered.
+         *
+         * @listens tap
+         * @listens click
+         * @listens keydown
+         *
+         * @param {Event} event
+         +        The `click`, `tap` or `keydown` event that caused this function to be called.
+         */
+        handleClick(event) {
+            // We don't want a click to trigger playback when controls are disabled
+            if (!this.player_.controls()) {
+                return;
+            }
+            if (this.player_.tech(true)) {
+                this.player_.tech(true).focus();
+            }
+            if (this.player_.paused()) {
+                silencePromise(this.player_.play());
+            } else {
+                this.player_.pause();
+            }
+        }
     }
+
     /**
-     * Get or set the `Player`'s crossOrigin option. For the HTML5 player, this
-     * sets the `crossOrigin` property on the `<video>` tag to control the CORS
+     * Get or set the `PosterImage`'s crossorigin option. For the HTML5 player, this
+     * sets the `crossOrigin` property on the `<img>` tag to control the CORS
      * behavior.
      *
-     * @see [Video Element Attributes]{@link https://developer.mozilla.org/en-US/docs/Web/HTML/Element/video#attr-crossorigin}
-     *
-     * @param {string} [value]
-     *        The value to set the `Player`'s crossOrigin to. If an argument is
+     * @param {string|null} [value]
+     *        The value to set the `PosterImages`'s crossorigin to. If an argument is
      *        given, must be one of `anonymous` or `use-credentials`.
      *
-     * @return {string|undefined}
-     *         - The current crossOrigin value of the `Player` when getting.
+     * @return {string|null|undefined}
+     *         - The current crossorigin value of the `Player` when getting.
      *         - undefined when setting
      */
-    ;
-
-    _proto.crossOrigin = function crossOrigin(value) {
-      if (!value) {
-        return this.techGet_('crossOrigin');
-      }
-
-      if (value !== 'anonymous' && value !== 'use-credentials') {
-        log$1.warn("crossOrigin must be \"anonymous\" or \"use-credentials\", given \"" + value + "\"");
-        return;
-      }
-
-      this.techCall_('setCrossOrigin', value);
-      return;
-    }
-    /**
-     * A getter/setter for the `Player`'s width. Returns the player's configured value.
-     * To get the current width use `currentWidth()`.
-     *
-     * @param {number} [value]
-     *        The value to set the `Player`'s width to.
-     *
-     * @return {number}
-     *         The current width of the `Player` when getting.
-     */
-    ;
-
-    _proto.width = function width(value) {
-      return this.dimension('width', value);
-    }
-    /**
-     * A getter/setter for the `Player`'s height. Returns the player's configured value.
-     * To get the current height use `currentheight()`.
-     *
-     * @param {number} [value]
-     *        The value to set the `Player`'s heigth to.
-     *
-     * @return {number}
-     *         The current height of the `Player` when getting.
-     */
-    ;
-
-    _proto.height = function height(value) {
-      return this.dimension('height', value);
-    }
-    /**
-     * A getter/setter for the `Player`'s width & height.
-     *
-     * @param {string} dimension
-     *        This string can be:
-     *        - 'width'
-     *        - 'height'
-     *
-     * @param {number} [value]
-     *        Value for dimension specified in the first argument.
-     *
-     * @return {number}
-     *         The dimension arguments value when getting (width/height).
-     */
-    ;
-
-    _proto.dimension = function dimension(_dimension, value) {
-      var privDimension = _dimension + '_';
-
-      if (value === undefined) {
-        return this[privDimension] || 0;
-      }
-
-      if (value === '' || value === 'auto') {
-        // If an empty string is given, reset the dimension to be automatic
-        this[privDimension] = undefined;
-        this.updateStyleEl_();
-        return;
-      }
-
-      var parsedVal = parseFloat(value);
-
-      if (isNaN(parsedVal)) {
-        log$1.error("Improper value \"" + value + "\" supplied for for " + _dimension);
-        return;
-      }
-
-      this[privDimension] = parsedVal;
-      this.updateStyleEl_();
-    }
-    /**
-     * A getter/setter/toggler for the vjs-fluid `className` on the `Player`.
-     *
-     * Turning this on will turn off fill mode.
-     *
-     * @param {boolean} [bool]
-     *        - A value of true adds the class.
-     *        - A value of false removes the class.
-     *        - No value will be a getter.
-     *
-     * @return {boolean|undefined}
-     *         - The value of fluid when getting.
-     *         - `undefined` when setting.
-     */
-    ;
-
-    _proto.fluid = function fluid(bool) {
-      var _this3 = this;
-
-      if (bool === undefined) {
-        return !!this.fluid_;
-      }
-
-      this.fluid_ = !!bool;
-
-      if (isEvented(this)) {
-        this.off(['playerreset', 'resize'], this.boundUpdateStyleEl_);
-      }
-
-      if (bool) {
-        this.addClass('vjs-fluid');
-        this.fill(false);
-        addEventedCallback(this, function () {
-          _this3.on(['playerreset', 'resize'], _this3.boundUpdateStyleEl_);
-        });
-      } else {
-        this.removeClass('vjs-fluid');
-      }
-
-      this.updateStyleEl_();
-    }
-    /**
-     * A getter/setter/toggler for the vjs-fill `className` on the `Player`.
-     *
-     * Turning this on will turn off fluid mode.
-     *
-     * @param {boolean} [bool]
-     *        - A value of true adds the class.
-     *        - A value of false removes the class.
-     *        - No value will be a getter.
-     *
-     * @return {boolean|undefined}
-     *         - The value of fluid when getting.
-     *         - `undefined` when setting.
-     */
-    ;
-
-    _proto.fill = function fill(bool) {
-      if (bool === undefined) {
-        return !!this.fill_;
-      }
-
-      this.fill_ = !!bool;
-
-      if (bool) {
-        this.addClass('vjs-fill');
-        this.fluid(false);
-      } else {
-        this.removeClass('vjs-fill');
-      }
-    }
-    /**
-     * Get/Set the aspect ratio
-     *
-     * @param {string} [ratio]
-     *        Aspect ratio for player
-     *
-     * @return {string|undefined}
-     *         returns the current aspect ratio when getting
-     */
+    PosterImage.prototype.crossorigin = PosterImage.prototype.crossOrigin;
+    Component$1.registerComponent('PosterImage', PosterImage);
 
     /**
-     * A getter/setter for the `Player`'s aspect ratio.
-     *
-     * @param {string} [ratio]
-     *        The value to set the `Player`'s aspect ratio to.
-     *
-     * @return {string|undefined}
-     *         - The current aspect ratio of the `Player` when getting.
-     *         - undefined when setting
+     * @file text-track-display.js
      */
-    ;
+    const darkGray = '#222';
+    const lightGray = '#ccc';
+    const fontMap = {
+        monospace: 'monospace',
+        sansSerif: 'sans-serif',
+        serif: 'serif',
+        monospaceSansSerif: '"Andale Mono", "Lucida Console", monospace',
+        monospaceSerif: '"Courier New", monospace',
+        proportionalSansSerif: 'sans-serif',
+        proportionalSerif: 'serif',
+        casual: '"Comic Sans MS", Impact, fantasy',
+        script: '"Monotype Corsiva", cursive',
+        smallcaps: '"Andale Mono", "Lucida Console", monospace, sans-serif'
+    };
 
-    _proto.aspectRatio = function aspectRatio(ratio) {
-      if (ratio === undefined) {
-        return this.aspectRatio_;
-      } // Check for width:height format
-
-
-      if (!/^\d+\:\d+$/.test(ratio)) {
-        throw new Error('Improper value supplied for aspect ratio. The format should be width:height, for example 16:9.');
-      }
-
-      this.aspectRatio_ = ratio; // We're assuming if you set an aspect ratio you want fluid mode,
-      // because in fixed mode you could calculate width and height yourself.
-
-      this.fluid(true);
-      this.updateStyleEl_();
-    }
     /**
-     * Update styles of the `Player` element (height, width and aspect ratio).
+     * Construct an rgba color from a given hex color code.
      *
-     * @private
-     * @listens Tech#loadedmetadata
+     * @param {number} color
+     *        Hex number for color, like #f0e or #f604e2.
+     *
+     * @param {number} opacity
+     *        Value for opacity, 0.0 - 1.0.
+     *
+     * @return {string}
+     *         The rgba color that was created, like 'rgba(255, 0, 0, 0.3)'.
      */
-    ;
-
-    _proto.updateStyleEl_ = function updateStyleEl_() {
-      if (window.VIDEOJS_NO_DYNAMIC_STYLE === true) {
-        var _width = typeof this.width_ === 'number' ? this.width_ : this.options_.width;
-
-        var _height = typeof this.height_ === 'number' ? this.height_ : this.options_.height;
-
-        var techEl = this.tech_ && this.tech_.el();
-
-        if (techEl) {
-          if (_width >= 0) {
-            techEl.width = _width;
-          }
-
-          if (_height >= 0) {
-            techEl.height = _height;
-          }
+    function constructColor(color, opacity) {
+        let hex;
+        if (color.length === 4) {
+            // color looks like "#f0e"
+            hex = color[1] + color[1] + color[2] + color[2] + color[3] + color[3];
+        } else if (color.length === 7) {
+            // color looks like "#f604e2"
+            hex = color.slice(1);
+        } else {
+            throw new Error('Invalid color code provided, ' + color + '; must be formatted as e.g. #f0e or #f604e2.');
         }
-
-        return;
-      }
-
-      var width;
-      var height;
-      var aspectRatio;
-      var idClass; // The aspect ratio is either used directly or to calculate width and height.
-
-      if (this.aspectRatio_ !== undefined && this.aspectRatio_ !== 'auto') {
-        // Use any aspectRatio that's been specifically set
-        aspectRatio = this.aspectRatio_;
-      } else if (this.videoWidth() > 0) {
-        // Otherwise try to get the aspect ratio from the video metadata
-        aspectRatio = this.videoWidth() + ':' + this.videoHeight();
-      } else {
-        // Or use a default. The video element's is 2:1, but 16:9 is more common.
-        aspectRatio = '16:9';
-      } // Get the ratio as a decimal we can use to calculate dimensions
-
-
-      var ratioParts = aspectRatio.split(':');
-      var ratioMultiplier = ratioParts[1] / ratioParts[0];
-
-      if (this.width_ !== undefined) {
-        // Use any width that's been specifically set
-        width = this.width_;
-      } else if (this.height_ !== undefined) {
-        // Or calulate the width from the aspect ratio if a height has been set
-        width = this.height_ / ratioMultiplier;
-      } else {
-        // Or use the video's metadata, or use the video el's default of 300
-        width = this.videoWidth() || 300;
-      }
-
-      if (this.height_ !== undefined) {
-        // Use any height that's been specifically set
-        height = this.height_;
-      } else {
-        // Otherwise calculate the height from the ratio and the width
-        height = width * ratioMultiplier;
-      } // Ensure the CSS class is valid by starting with an alpha character
-
-
-      if (/^[^a-zA-Z]/.test(this.id())) {
-        idClass = 'dimensions-' + this.id();
-      } else {
-        idClass = this.id() + '-dimensions';
-      } // Ensure the right class is still on the player for the style element
-
-
-      this.addClass(idClass);
-      setTextContent(this.styleEl_, "\n      ." + idClass + " {\n        width: " + width + "px;\n        height: " + height + "px;\n      }\n\n      ." + idClass + ".vjs-fluid:not(.vjs-audio-only-mode) {\n        padding-top: " + ratioMultiplier * 100 + "%;\n      }\n    ");
+        return 'rgba(' + parseInt(hex.slice(0, 2), 16) + ',' + parseInt(hex.slice(2, 4), 16) + ',' + parseInt(hex.slice(4, 6), 16) + ',' + opacity + ')';
     }
+
     /**
-     * Load/Create an instance of playback {@link Tech} including element
-     * and API methods. Then append the `Tech` element in `Player` as a child.
+     * Try to update the style of a DOM element. Some style changes will throw an error,
+     * particularly in IE8. Those should be noops.
      *
-     * @param {string} techName
-     *        name of the playback technology
+     * @param {Element} el
+     *        The DOM element to be styled.
      *
-     * @param {string} source
-     *        video source
+     * @param {string} style
+     *        The CSS property on the element that should be styled.
+     *
+     * @param {string} rule
+     *        The style rule that should be applied to the property.
      *
      * @private
      */
-    ;
-
-    _proto.loadTech_ = function loadTech_(techName, source) {
-      var _this4 = this;
-
-      // Pause and remove current playback technology
-      if (this.tech_) {
-        this.unloadTech_();
-      }
-
-      var titleTechName = toTitleCase$1(techName);
-      var camelTechName = techName.charAt(0).toLowerCase() + techName.slice(1); // get rid of the HTML5 video tag as soon as we are using another tech
-
-      if (titleTechName !== 'Html5' && this.tag) {
-        Tech.getTech('Html5').disposeMediaElement(this.tag);
-        this.tag.player = null;
-        this.tag = null;
-      }
-
-      this.techName_ = titleTechName; // Turn off API access because we're loading a new tech that might load asynchronously
-
-      this.isReady_ = false;
-      var autoplay = this.autoplay(); // if autoplay is a string (or `true` with normalizeAutoplay: true) we pass false to the tech
-      // because the player is going to handle autoplay on `loadstart`
-
-      if (typeof this.autoplay() === 'string' || this.autoplay() === true && this.options_.normalizeAutoplay) {
-        autoplay = false;
-      } // Grab tech-specific options from player options and add source and parent element to use.
-
-
-      var techOptions = {
-        source: source,
-        autoplay: autoplay,
-        'nativeControlsForTouch': this.options_.nativeControlsForTouch,
-        'playerId': this.id(),
-        'techId': this.id() + "_" + camelTechName + "_api",
-        'playsinline': this.options_.playsinline,
-        'preload': this.options_.preload,
-        'loop': this.options_.loop,
-        'disablePictureInPicture': this.options_.disablePictureInPicture,
-        'muted': this.options_.muted,
-        'poster': this.poster(),
-        'language': this.language(),
-        'playerElIngest': this.playerElIngest_ || false,
-        'vtt.js': this.options_['vtt.js'],
-        'canOverridePoster': !!this.options_.techCanOverridePoster,
-        'enableSourceset': this.options_.enableSourceset,
-        'Promise': this.options_.Promise
-      };
-      ALL.names.forEach(function (name) {
-        var props = ALL[name];
-        techOptions[props.getterName] = _this4[props.privateName];
-      });
-      assign(techOptions, this.options_[titleTechName]);
-      assign(techOptions, this.options_[camelTechName]);
-      assign(techOptions, this.options_[techName.toLowerCase()]);
-
-      if (this.tag) {
-        techOptions.tag = this.tag;
-      }
-
-      if (source && source.src === this.cache_.src && this.cache_.currentTime > 0) {
-        techOptions.startTime = this.cache_.currentTime;
-      } // Initialize tech instance
-
-
-      var TechClass = Tech.getTech(techName);
-
-      if (!TechClass) {
-        throw new Error("No Tech named '" + titleTechName + "' exists! '" + titleTechName + "' should be registered using videojs.registerTech()'");
-      }
-
-      this.tech_ = new TechClass(techOptions); // player.triggerReady is always async, so don't need this to be async
-
-      this.tech_.ready(bind(this, this.handleTechReady_), true);
-      textTrackConverter.jsonToTextTracks(this.textTracksJson_ || [], this.tech_); // Listen to all HTML5-defined events and trigger them on the player
-
-      TECH_EVENTS_RETRIGGER.forEach(function (event) {
-        _this4.on(_this4.tech_, event, function (e) {
-          return _this4["handleTech" + toTitleCase$1(event) + "_"](e);
-        });
-      });
-      Object.keys(TECH_EVENTS_QUEUE).forEach(function (event) {
-        _this4.on(_this4.tech_, event, function (eventObj) {
-          if (_this4.tech_.playbackRate() === 0 && _this4.tech_.seeking()) {
-            _this4.queuedCallbacks_.push({
-              callback: _this4["handleTech" + TECH_EVENTS_QUEUE[event] + "_"].bind(_this4),
-              event: eventObj
-            });
-
+    function tryUpdateStyle(el, style, rule) {
+        try {
+            el.style[style] = rule;
+        } catch (e) {
+            // Satisfies linter.
             return;
-          }
-
-          _this4["handleTech" + TECH_EVENTS_QUEUE[event] + "_"](eventObj);
-        });
-      });
-      this.on(this.tech_, 'loadstart', function (e) {
-        return _this4.handleTechLoadStart_(e);
-      });
-      this.on(this.tech_, 'sourceset', function (e) {
-        return _this4.handleTechSourceset_(e);
-      });
-      this.on(this.tech_, 'waiting', function (e) {
-        return _this4.handleTechWaiting_(e);
-      });
-      this.on(this.tech_, 'ended', function (e) {
-        return _this4.handleTechEnded_(e);
-      });
-      this.on(this.tech_, 'seeking', function (e) {
-        return _this4.handleTechSeeking_(e);
-      });
-      this.on(this.tech_, 'play', function (e) {
-        return _this4.handleTechPlay_(e);
-      });
-      this.on(this.tech_, 'firstplay', function (e) {
-        return _this4.handleTechFirstPlay_(e);
-      });
-      this.on(this.tech_, 'pause', function (e) {
-        return _this4.handleTechPause_(e);
-      });
-      this.on(this.tech_, 'durationchange', function (e) {
-        return _this4.handleTechDurationChange_(e);
-      });
-      this.on(this.tech_, 'fullscreenchange', function (e, data) {
-        return _this4.handleTechFullscreenChange_(e, data);
-      });
-      this.on(this.tech_, 'fullscreenerror', function (e, err) {
-        return _this4.handleTechFullscreenError_(e, err);
-      });
-      this.on(this.tech_, 'enterpictureinpicture', function (e) {
-        return _this4.handleTechEnterPictureInPicture_(e);
-      });
-      this.on(this.tech_, 'leavepictureinpicture', function (e) {
-        return _this4.handleTechLeavePictureInPicture_(e);
-      });
-      this.on(this.tech_, 'error', function (e) {
-        return _this4.handleTechError_(e);
-      });
-      this.on(this.tech_, 'posterchange', function (e) {
-        return _this4.handleTechPosterChange_(e);
-      });
-      this.on(this.tech_, 'textdata', function (e) {
-        return _this4.handleTechTextData_(e);
-      });
-      this.on(this.tech_, 'ratechange', function (e) {
-        return _this4.handleTechRateChange_(e);
-      });
-      this.on(this.tech_, 'loadedmetadata', this.boundUpdateStyleEl_);
-      this.usingNativeControls(this.techGet_('controls'));
-
-      if (this.controls() && !this.usingNativeControls()) {
-        this.addTechControlsListeners_();
-      } // Add the tech element in the DOM if it was not already there
-      // Make sure to not insert the original video element if using Html5
-
-
-      if (this.tech_.el().parentNode !== this.el() && (titleTechName !== 'Html5' || !this.tag)) {
-        prependTo(this.tech_.el(), this.el());
-      } // Get rid of the original video tag reference after the first tech is loaded
-
-
-      if (this.tag) {
-        this.tag.player = null;
-        this.tag = null;
-      }
+        }
     }
+
     /**
-     * Unload and dispose of the current playback {@link Tech}.
+     * The component for displaying text track cues.
      *
-     * @private
+     * @extends Component
      */
-    ;
-
-    _proto.unloadTech_ = function unloadTech_() {
-      var _this5 = this;
-
-      // Save the current text tracks so that we can reuse the same text tracks with the next tech
-      ALL.names.forEach(function (name) {
-        var props = ALL[name];
-        _this5[props.privateName] = _this5[props.getterName]();
-      });
-      this.textTracksJson_ = textTrackConverter.textTracksToJson(this.tech_);
-      this.isReady_ = false;
-      this.tech_.dispose();
-      this.tech_ = false;
-
-      if (this.isPosterFromTech_) {
-        this.poster_ = '';
-        this.trigger('posterchange');
-      }
-
-      this.isPosterFromTech_ = false;
-    }
-    /**
-     * Return a reference to the current {@link Tech}.
-     * It will print a warning by default about the danger of using the tech directly
-     * but any argument that is passed in will silence the warning.
-     *
-     * @param {*} [safety]
-     *        Anything passed in to silence the warning
-     *
-     * @return {Tech}
-     *         The Tech
-     */
-    ;
-
-    _proto.tech = function tech(safety) {
-      if (safety === undefined) {
-        log$1.warn('Using the tech directly can be dangerous. I hope you know what you\'re doing.\n' + 'See https://github.com/videojs/video.js/issues/2617 for more info.\n');
-      }
-
-      return this.tech_;
-    }
-    /**
-     * Set up click and touch listeners for the playback element
-     *
-     * - On desktops: a click on the video itself will toggle playback
-     * - On mobile devices: a click on the video toggles controls
-     *   which is done by toggling the user state between active and
-     *   inactive
-     * - A tap can signal that a user has become active or has become inactive
-     *   e.g. a quick tap on an iPhone movie should reveal the controls. Another
-     *   quick tap should hide them again (signaling the user is in an inactive
-     *   viewing state)
-     * - In addition to this, we still want the user to be considered inactive after
-     *   a few seconds of inactivity.
-     *
-     * > Note: the only part of iOS interaction we can't mimic with this setup
-     * is a touch and hold on the video element counting as activity in order to
-     * keep the controls showing, but that shouldn't be an issue. A touch and hold
-     * on any controls will still keep the user active
-     *
-     * @private
-     */
-    ;
-
-    _proto.addTechControlsListeners_ = function addTechControlsListeners_() {
-      // Make sure to remove all the previous listeners in case we are called multiple times.
-      this.removeTechControlsListeners_();
-      this.on(this.tech_, 'click', this.boundHandleTechClick_);
-      this.on(this.tech_, 'dblclick', this.boundHandleTechDoubleClick_); // If the controls were hidden we don't want that to change without a tap event
-      // so we'll check if the controls were already showing before reporting user
-      // activity
-
-      this.on(this.tech_, 'touchstart', this.boundHandleTechTouchStart_);
-      this.on(this.tech_, 'touchmove', this.boundHandleTechTouchMove_);
-      this.on(this.tech_, 'touchend', this.boundHandleTechTouchEnd_); // The tap listener needs to come after the touchend listener because the tap
-      // listener cancels out any reportedUserActivity when setting userActive(false)
-
-      this.on(this.tech_, 'tap', this.boundHandleTechTap_);
-    }
-    /**
-     * Remove the listeners used for click and tap controls. This is needed for
-     * toggling to controls disabled, where a tap/touch should do nothing.
-     *
-     * @private
-     */
-    ;
-
-    _proto.removeTechControlsListeners_ = function removeTechControlsListeners_() {
-      // We don't want to just use `this.off()` because there might be other needed
-      // listeners added by techs that extend this.
-      this.off(this.tech_, 'tap', this.boundHandleTechTap_);
-      this.off(this.tech_, 'touchstart', this.boundHandleTechTouchStart_);
-      this.off(this.tech_, 'touchmove', this.boundHandleTechTouchMove_);
-      this.off(this.tech_, 'touchend', this.boundHandleTechTouchEnd_);
-      this.off(this.tech_, 'click', this.boundHandleTechClick_);
-      this.off(this.tech_, 'dblclick', this.boundHandleTechDoubleClick_);
-    }
-    /**
-     * Player waits for the tech to be ready
-     *
-     * @private
-     */
-    ;
-
-    _proto.handleTechReady_ = function handleTechReady_() {
-      this.triggerReady(); // Keep the same volume as before
-
-      if (this.cache_.volume) {
-        this.techCall_('setVolume', this.cache_.volume);
-      } // Look if the tech found a higher resolution poster while loading
-
-
-      this.handleTechPosterChange_(); // Update the duration if available
-
-      this.handleTechDurationChange_();
-    }
-    /**
-     * Retrigger the `loadstart` event that was triggered by the {@link Tech}. This
-     * function will also trigger {@link Player#firstplay} if it is the first loadstart
-     * for a video.
-     *
-     * @fires Player#loadstart
-     * @fires Player#firstplay
-     * @listens Tech#loadstart
-     * @private
-     */
-    ;
-
-    _proto.handleTechLoadStart_ = function handleTechLoadStart_() {
-      // TODO: Update to use `emptied` event instead. See #1277.
-      this.removeClass('vjs-ended');
-      this.removeClass('vjs-seeking'); // reset the error state
-
-      this.error(null); // Update the duration
-
-      this.handleTechDurationChange_(); // If it's already playing we want to trigger a firstplay event now.
-      // The firstplay event relies on both the play and loadstart events
-      // which can happen in any order for a new source
-
-      if (!this.paused()) {
+    class TextTrackDisplay extends Component$1 {
         /**
-         * Fired when the user agent begins looking for media data
+         * Creates an instance of this class.
          *
-         * @event Player#loadstart
-         * @type {EventTarget~Event}
+         * @param { import('../player').default } player
+         *        The `Player` that this class should be attached to.
+         *
+         * @param {Object} [options]
+         *        The key/value store of player options.
+         *
+         * @param {Function} [ready]
+         *        The function to call when `TextTrackDisplay` is ready.
          */
-        this.trigger('loadstart');
-        this.trigger('firstplay');
-      } else {
-        // reset the hasStarted state
-        this.hasStarted(false);
-        this.trigger('loadstart');
-      } // autoplay happens after loadstart for the browser,
-      // so we mimic that behavior
+        constructor(player, options, ready) {
+            super(player, options, ready);
+            const updateDisplayHandler = e => this.updateDisplay(e);
+            player.on('loadstart', e => this.toggleDisplay(e));
+            player.on('texttrackchange', updateDisplayHandler);
+            player.on('loadedmetadata', e => this.preselectTrack(e));
 
-
-      this.manualAutoplay_(this.autoplay() === true && this.options_.normalizeAutoplay ? 'play' : this.autoplay());
-    }
-    /**
-     * Handle autoplay string values, rather than the typical boolean
-     * values that should be handled by the tech. Note that this is not
-     * part of any specification. Valid values and what they do can be
-     * found on the autoplay getter at Player#autoplay()
-     */
-    ;
-
-    _proto.manualAutoplay_ = function manualAutoplay_(type) {
-      var _this6 = this;
-
-      if (!this.tech_ || typeof type !== 'string') {
-        return;
-      } // Save original muted() value, set muted to true, and attempt to play().
-      // On promise rejection, restore muted from saved value
-
-
-      var resolveMuted = function resolveMuted() {
-        var previouslyMuted = _this6.muted();
-
-        _this6.muted(true);
-
-        var restoreMuted = function restoreMuted() {
-          _this6.muted(previouslyMuted);
-        }; // restore muted on play terminatation
-
-
-        _this6.playTerminatedQueue_.push(restoreMuted);
-
-        var mutedPromise = _this6.play();
-
-        if (!isPromise(mutedPromise)) {
-          return;
+            // This used to be called during player init, but was causing an error
+            // if a track should show by default and the display hadn't loaded yet.
+            // Should probably be moved to an external track loader when we support
+            // tracks that don't need a display.
+            player.ready(bind_(this, function () {
+                if (player.tech_ && player.tech_.featuresNativeTextTracks) {
+                    this.hide();
+                    return;
+                }
+                player.on('fullscreenchange', updateDisplayHandler);
+                player.on('playerresize', updateDisplayHandler);
+                const screenOrientation = window.screen.orientation || window;
+                const changeOrientationEvent = window.screen.orientation ? 'change' : 'orientationchange';
+                screenOrientation.addEventListener(changeOrientationEvent, updateDisplayHandler);
+                player.on('dispose', () => screenOrientation.removeEventListener(changeOrientationEvent, updateDisplayHandler));
+                const tracks = this.options_.playerOptions.tracks || [];
+                for (let i = 0; i < tracks.length; i++) {
+                    this.player_.addRemoteTextTrack(tracks[i], true);
+                }
+                this.preselectTrack();
+            }));
         }
 
-        return mutedPromise["catch"](function (err) {
-          restoreMuted();
-          throw new Error("Rejection at manualAutoplay. Restoring muted value. " + (err ? err : ''));
-        });
-      };
+        /**
+         * Preselect a track following this precedence:
+         * - matches the previously selected {@link TextTrack}'s language and kind
+         * - matches the previously selected {@link TextTrack}'s language only
+         * - is the first default captions track
+         * - is the first default descriptions track
+         *
+         * @listens Player#loadstart
+         */
+        preselectTrack() {
+            const modes = {
+                captions: 1,
+                subtitles: 1
+            };
+            const trackList = this.player_.textTracks();
+            const userPref = this.player_.cache_.selectedLanguage;
+            let firstDesc;
+            let firstCaptions;
+            let preferredTrack;
+            for (let i = 0; i < trackList.length; i++) {
+                const track = trackList[i];
+                if (userPref && userPref.enabled && userPref.language && userPref.language === track.language && track.kind in modes) {
+                    // Always choose the track that matches both language and kind
+                    if (track.kind === userPref.kind) {
+                        preferredTrack = track;
+                        // or choose the first track that matches language
+                    } else if (!preferredTrack) {
+                        preferredTrack = track;
+                    }
 
-      var promise; // if muted defaults to true
-      // the only thing we can do is call play
-
-      if (type === 'any' && !this.muted()) {
-        promise = this.play();
-
-        if (isPromise(promise)) {
-          promise = promise["catch"](resolveMuted);
-        }
-      } else if (type === 'muted' && !this.muted()) {
-        promise = resolveMuted();
-      } else {
-        promise = this.play();
-      }
-
-      if (!isPromise(promise)) {
-        return;
-      }
-
-      return promise.then(function () {
-        _this6.trigger({
-          type: 'autoplay-success',
-          autoplay: type
-        });
-      })["catch"](function () {
-        _this6.trigger({
-          type: 'autoplay-failure',
-          autoplay: type
-        });
-      });
-    }
-    /**
-     * Update the internal source caches so that we return the correct source from
-     * `src()`, `currentSource()`, and `currentSources()`.
-     *
-     * > Note: `currentSources` will not be updated if the source that is passed in exists
-     *         in the current `currentSources` cache.
-     *
-     *
-     * @param {Tech~SourceObject} srcObj
-     *        A string or object source to update our caches to.
-     */
-    ;
-
-    _proto.updateSourceCaches_ = function updateSourceCaches_(srcObj) {
-      if (srcObj === void 0) {
-        srcObj = '';
-      }
-
-      var src = srcObj;
-      var type = '';
-
-      if (typeof src !== 'string') {
-        src = srcObj.src;
-        type = srcObj.type;
-      } // make sure all the caches are set to default values
-      // to prevent null checking
-
-
-      this.cache_.source = this.cache_.source || {};
-      this.cache_.sources = this.cache_.sources || []; // try to get the type of the src that was passed in
-
-      if (src && !type) {
-        type = findMimetype(this, src);
-      } // update `currentSource` cache always
-
-
-      this.cache_.source = mergeOptions$3({}, srcObj, {
-        src: src,
-        type: type
-      });
-      var matchingSources = this.cache_.sources.filter(function (s) {
-        return s.src && s.src === src;
-      });
-      var sourceElSources = [];
-      var sourceEls = this.$$('source');
-      var matchingSourceEls = [];
-
-      for (var i = 0; i < sourceEls.length; i++) {
-        var sourceObj = getAttributes(sourceEls[i]);
-        sourceElSources.push(sourceObj);
-
-        if (sourceObj.src && sourceObj.src === src) {
-          matchingSourceEls.push(sourceObj.src);
-        }
-      } // if we have matching source els but not matching sources
-      // the current source cache is not up to date
-
-
-      if (matchingSourceEls.length && !matchingSources.length) {
-        this.cache_.sources = sourceElSources; // if we don't have matching source or source els set the
-        // sources cache to the `currentSource` cache
-      } else if (!matchingSources.length) {
-        this.cache_.sources = [this.cache_.source];
-      } // update the tech `src` cache
-
-
-      this.cache_.src = src;
-    }
-    /**
-     * *EXPERIMENTAL* Fired when the source is set or changed on the {@link Tech}
-     * causing the media element to reload.
-     *
-     * It will fire for the initial source and each subsequent source.
-     * This event is a custom event from Video.js and is triggered by the {@link Tech}.
-     *
-     * The event object for this event contains a `src` property that will contain the source
-     * that was available when the event was triggered. This is generally only necessary if Video.js
-     * is switching techs while the source was being changed.
-     *
-     * It is also fired when `load` is called on the player (or media element)
-     * because the {@link https://html.spec.whatwg.org/multipage/media.html#dom-media-load|specification for `load`}
-     * says that the resource selection algorithm needs to be aborted and restarted.
-     * In this case, it is very likely that the `src` property will be set to the
-     * empty string `""` to indicate we do not know what the source will be but
-     * that it is changing.
-     *
-     * *This event is currently still experimental and may change in minor releases.*
-     * __To use this, pass `enableSourceset` option to the player.__
-     *
-     * @event Player#sourceset
-     * @type {EventTarget~Event}
-     * @prop {string} src
-     *                The source url available when the `sourceset` was triggered.
-     *                It will be an empty string if we cannot know what the source is
-     *                but know that the source will change.
-     */
-
-    /**
-     * Retrigger the `sourceset` event that was triggered by the {@link Tech}.
-     *
-     * @fires Player#sourceset
-     * @listens Tech#sourceset
-     * @private
-     */
-    ;
-
-    _proto.handleTechSourceset_ = function handleTechSourceset_(event) {
-      var _this7 = this;
-
-      // only update the source cache when the source
-      // was not updated using the player api
-      if (!this.changingSrc_) {
-        var updateSourceCaches = function updateSourceCaches(src) {
-          return _this7.updateSourceCaches_(src);
-        };
-
-        var playerSrc = this.currentSource().src;
-        var eventSrc = event.src; // if we have a playerSrc that is not a blob, and a tech src that is a blob
-
-        if (playerSrc && !/^blob:/.test(playerSrc) && /^blob:/.test(eventSrc)) {
-          // if both the tech source and the player source were updated we assume
-          // something like @videojs/http-streaming did the sourceset and skip updating the source cache.
-          if (!this.lastSource_ || this.lastSource_.tech !== eventSrc && this.lastSource_.player !== playerSrc) {
-            updateSourceCaches = function updateSourceCaches() {};
-          }
-        } // update the source to the initial source right away
-        // in some cases this will be empty string
-
-
-        updateSourceCaches(eventSrc); // if the `sourceset` `src` was an empty string
-        // wait for a `loadstart` to update the cache to `currentSrc`.
-        // If a sourceset happens before a `loadstart`, we reset the state
-
-        if (!event.src) {
-          this.tech_.any(['sourceset', 'loadstart'], function (e) {
-            // if a sourceset happens before a `loadstart` there
-            // is nothing to do as this `handleTechSourceset_`
-            // will be called again and this will be handled there.
-            if (e.type === 'sourceset') {
-              return;
+                    // clear everything if offTextTrackMenuItem was clicked
+                } else if (userPref && !userPref.enabled) {
+                    preferredTrack = null;
+                    firstDesc = null;
+                    firstCaptions = null;
+                } else if (track.default) {
+                    if (track.kind === 'descriptions' && !firstDesc) {
+                        firstDesc = track;
+                    } else if (track.kind in modes && !firstCaptions) {
+                        firstCaptions = track;
+                    }
+                }
             }
 
-            var techSrc = _this7.techGet('currentSrc');
-
-            _this7.lastSource_.tech = techSrc;
-
-            _this7.updateSourceCaches_(techSrc);
-          });
+            // The preferredTrack matches the user preference and takes
+            // precedence over all the other tracks.
+            // So, display the preferredTrack before the first default track
+            // and the subtitles/captions track before the descriptions track
+            if (preferredTrack) {
+                preferredTrack.mode = 'showing';
+            } else if (firstCaptions) {
+                firstCaptions.mode = 'showing';
+            } else if (firstDesc) {
+                firstDesc.mode = 'showing';
+            }
         }
-      }
 
-      this.lastSource_ = {
-        player: this.currentSource().src,
-        tech: event.src
-      };
-      this.trigger({
-        src: event.src,
-        type: 'sourceset'
-      });
-    }
-    /**
-     * Add/remove the vjs-has-started class
-     *
-     * @fires Player#firstplay
-     *
-     * @param {boolean} request
-     *        - true: adds the class
-     *        - false: remove the class
-     *
-     * @return {boolean}
-     *         the boolean value of hasStarted_
-     */
-    ;
-
-    _proto.hasStarted = function hasStarted(request) {
-      if (request === undefined) {
-        // act as getter, if we have no request to change
-        return this.hasStarted_;
-      }
-
-      if (request === this.hasStarted_) {
-        return;
-      }
-
-      this.hasStarted_ = request;
-
-      if (this.hasStarted_) {
-        this.addClass('vjs-has-started');
-        this.trigger('firstplay');
-      } else {
-        this.removeClass('vjs-has-started');
-      }
-    }
-    /**
-     * Fired whenever the media begins or resumes playback
-     *
-     * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#dom-media-play}
-     * @fires Player#play
-     * @listens Tech#play
-     * @private
-     */
-    ;
-
-    _proto.handleTechPlay_ = function handleTechPlay_() {
-      this.removeClass('vjs-ended');
-      this.removeClass('vjs-paused');
-      this.addClass('vjs-playing'); // hide the poster when the user hits play
-
-      this.hasStarted(true);
-      /**
-       * Triggered whenever an {@link Tech#play} event happens. Indicates that
-       * playback has started or resumed.
-       *
-       * @event Player#play
-       * @type {EventTarget~Event}
-       */
-
-      this.trigger('play');
-    }
-    /**
-     * Retrigger the `ratechange` event that was triggered by the {@link Tech}.
-     *
-     * If there were any events queued while the playback rate was zero, fire
-     * those events now.
-     *
-     * @private
-     * @method Player#handleTechRateChange_
-     * @fires Player#ratechange
-     * @listens Tech#ratechange
-     */
-    ;
-
-    _proto.handleTechRateChange_ = function handleTechRateChange_() {
-      if (this.tech_.playbackRate() > 0 && this.cache_.lastPlaybackRate === 0) {
-        this.queuedCallbacks_.forEach(function (queued) {
-          return queued.callback(queued.event);
-        });
-        this.queuedCallbacks_ = [];
-      }
-
-      this.cache_.lastPlaybackRate = this.tech_.playbackRate();
-      /**
-       * Fires when the playing speed of the audio/video is changed
-       *
-       * @event Player#ratechange
-       * @type {event}
-       */
-
-      this.trigger('ratechange');
-    }
-    /**
-     * Retrigger the `waiting` event that was triggered by the {@link Tech}.
-     *
-     * @fires Player#waiting
-     * @listens Tech#waiting
-     * @private
-     */
-    ;
-
-    _proto.handleTechWaiting_ = function handleTechWaiting_() {
-      var _this8 = this;
-
-      this.addClass('vjs-waiting');
-      /**
-       * A readyState change on the DOM element has caused playback to stop.
-       *
-       * @event Player#waiting
-       * @type {EventTarget~Event}
-       */
-
-      this.trigger('waiting'); // Browsers may emit a timeupdate event after a waiting event. In order to prevent
-      // premature removal of the waiting class, wait for the time to change.
-
-      var timeWhenWaiting = this.currentTime();
-
-      var timeUpdateListener = function timeUpdateListener() {
-        if (timeWhenWaiting !== _this8.currentTime()) {
-          _this8.removeClass('vjs-waiting');
-
-          _this8.off('timeupdate', timeUpdateListener);
-        }
-      };
-
-      this.on('timeupdate', timeUpdateListener);
-    }
-    /**
-     * Retrigger the `canplay` event that was triggered by the {@link Tech}.
-     * > Note: This is not consistent between browsers. See #1351
-     *
-     * @fires Player#canplay
-     * @listens Tech#canplay
-     * @private
-     */
-    ;
-
-    _proto.handleTechCanPlay_ = function handleTechCanPlay_() {
-      this.removeClass('vjs-waiting');
-      /**
-       * The media has a readyState of HAVE_FUTURE_DATA or greater.
-       *
-       * @event Player#canplay
-       * @type {EventTarget~Event}
-       */
-
-      this.trigger('canplay');
-    }
-    /**
-     * Retrigger the `canplaythrough` event that was triggered by the {@link Tech}.
-     *
-     * @fires Player#canplaythrough
-     * @listens Tech#canplaythrough
-     * @private
-     */
-    ;
-
-    _proto.handleTechCanPlayThrough_ = function handleTechCanPlayThrough_() {
-      this.removeClass('vjs-waiting');
-      /**
-       * The media has a readyState of HAVE_ENOUGH_DATA or greater. This means that the
-       * entire media file can be played without buffering.
-       *
-       * @event Player#canplaythrough
-       * @type {EventTarget~Event}
-       */
-
-      this.trigger('canplaythrough');
-    }
-    /**
-     * Retrigger the `playing` event that was triggered by the {@link Tech}.
-     *
-     * @fires Player#playing
-     * @listens Tech#playing
-     * @private
-     */
-    ;
-
-    _proto.handleTechPlaying_ = function handleTechPlaying_() {
-      this.removeClass('vjs-waiting');
-      /**
-       * The media is no longer blocked from playback, and has started playing.
-       *
-       * @event Player#playing
-       * @type {EventTarget~Event}
-       */
-
-      this.trigger('playing');
-    }
-    /**
-     * Retrigger the `seeking` event that was triggered by the {@link Tech}.
-     *
-     * @fires Player#seeking
-     * @listens Tech#seeking
-     * @private
-     */
-    ;
-
-    _proto.handleTechSeeking_ = function handleTechSeeking_() {
-      this.addClass('vjs-seeking');
-      /**
-       * Fired whenever the player is jumping to a new time
-       *
-       * @event Player#seeking
-       * @type {EventTarget~Event}
-       */
-
-      this.trigger('seeking');
-    }
-    /**
-     * Retrigger the `seeked` event that was triggered by the {@link Tech}.
-     *
-     * @fires Player#seeked
-     * @listens Tech#seeked
-     * @private
-     */
-    ;
-
-    _proto.handleTechSeeked_ = function handleTechSeeked_() {
-      this.removeClass('vjs-seeking');
-      this.removeClass('vjs-ended');
-      /**
-       * Fired when the player has finished jumping to a new time
-       *
-       * @event Player#seeked
-       * @type {EventTarget~Event}
-       */
-
-      this.trigger('seeked');
-    }
-    /**
-     * Retrigger the `firstplay` event that was triggered by the {@link Tech}.
-     *
-     * @fires Player#firstplay
-     * @listens Tech#firstplay
-     * @deprecated As of 6.0 firstplay event is deprecated.
-     *             As of 6.0 passing the `starttime` option to the player and the firstplay event are deprecated.
-     * @private
-     */
-    ;
-
-    _proto.handleTechFirstPlay_ = function handleTechFirstPlay_() {
-      // If the first starttime attribute is specified
-      // then we will start at the given offset in seconds
-      if (this.options_.starttime) {
-        log$1.warn('Passing the `starttime` option to the player will be deprecated in 6.0');
-        this.currentTime(this.options_.starttime);
-      }
-
-      this.addClass('vjs-has-started');
-      /**
-       * Fired the first time a video is played. Not part of the HLS spec, and this is
-       * probably not the best implementation yet, so use sparingly. If you don't have a
-       * reason to prevent playback, use `myPlayer.one('play');` instead.
-       *
-       * @event Player#firstplay
-       * @deprecated As of 6.0 firstplay event is deprecated.
-       * @type {EventTarget~Event}
-       */
-
-      this.trigger('firstplay');
-    }
-    /**
-     * Retrigger the `pause` event that was triggered by the {@link Tech}.
-     *
-     * @fires Player#pause
-     * @listens Tech#pause
-     * @private
-     */
-    ;
-
-    _proto.handleTechPause_ = function handleTechPause_() {
-      this.removeClass('vjs-playing');
-      this.addClass('vjs-paused');
-      /**
-       * Fired whenever the media has been paused
-       *
-       * @event Player#pause
-       * @type {EventTarget~Event}
-       */
-
-      this.trigger('pause');
-    }
-    /**
-     * Retrigger the `ended` event that was triggered by the {@link Tech}.
-     *
-     * @fires Player#ended
-     * @listens Tech#ended
-     * @private
-     */
-    ;
-
-    _proto.handleTechEnded_ = function handleTechEnded_() {
-      this.addClass('vjs-ended');
-      this.removeClass('vjs-waiting');
-
-      if (this.options_.loop) {
-        this.currentTime(0);
-        this.play();
-      } else if (!this.paused()) {
-        this.pause();
-      }
-      /**
-       * Fired when the end of the media resource is reached (currentTime == duration)
-       *
-       * @event Player#ended
-       * @type {EventTarget~Event}
-       */
-
-
-      this.trigger('ended');
-    }
-    /**
-     * Fired when the duration of the media resource is first known or changed
-     *
-     * @listens Tech#durationchange
-     * @private
-     */
-    ;
-
-    _proto.handleTechDurationChange_ = function handleTechDurationChange_() {
-      this.duration(this.techGet_('duration'));
-    }
-    /**
-     * Handle a click on the media element to play/pause
-     *
-     * @param {EventTarget~Event} event
-     *        the event that caused this function to trigger
-     *
-     * @listens Tech#click
-     * @private
-     */
-    ;
-
-    _proto.handleTechClick_ = function handleTechClick_(event) {
-      // When controls are disabled a click should not toggle playback because
-      // the click is considered a control
-      if (!this.controls_) {
-        return;
-      }
-
-      if (this.options_ === undefined || this.options_.userActions === undefined || this.options_.userActions.click === undefined || this.options_.userActions.click !== false) {
-        if (this.options_ !== undefined && this.options_.userActions !== undefined && typeof this.options_.userActions.click === 'function') {
-          this.options_.userActions.click.call(this, event);
-        } else if (this.paused()) {
-          silencePromise(this.play());
-        } else {
-          this.pause();
-        }
-      }
-    }
-    /**
-     * Handle a double-click on the media element to enter/exit fullscreen
-     *
-     * @param {EventTarget~Event} event
-     *        the event that caused this function to trigger
-     *
-     * @listens Tech#dblclick
-     * @private
-     */
-    ;
-
-    _proto.handleTechDoubleClick_ = function handleTechDoubleClick_(event) {
-      if (!this.controls_) {
-        return;
-      } // we do not want to toggle fullscreen state
-      // when double-clicking inside a control bar or a modal
-
-
-      var inAllowedEls = Array.prototype.some.call(this.$$('.vjs-control-bar, .vjs-modal-dialog'), function (el) {
-        return el.contains(event.target);
-      });
-
-      if (!inAllowedEls) {
-        /*
-         * options.userActions.doubleClick
+        /**
+         * Turn display of {@link TextTrack}'s from the current state into the other state.
+         * There are only two states:
+         * - 'shown'
+         * - 'hidden'
          *
-         * If `undefined` or `true`, double-click toggles fullscreen if controls are present
-         * Set to `false` to disable double-click handling
-         * Set to a function to substitute an external double-click handler
+         * @listens Player#loadstart
          */
-        if (this.options_ === undefined || this.options_.userActions === undefined || this.options_.userActions.doubleClick === undefined || this.options_.userActions.doubleClick !== false) {
-          if (this.options_ !== undefined && this.options_.userActions !== undefined && typeof this.options_.userActions.doubleClick === 'function') {
-            this.options_.userActions.doubleClick.call(this, event);
-          } else if (this.isFullscreen()) {
-            this.exitFullscreen();
-          } else {
-            this.requestFullscreen();
-          }
-        }
-      }
-    }
-    /**
-     * Handle a tap on the media element. It will toggle the user
-     * activity state, which hides and shows the controls.
-     *
-     * @listens Tech#tap
-     * @private
-     */
-    ;
-
-    _proto.handleTechTap_ = function handleTechTap_() {
-      this.userActive(!this.userActive());
-    }
-    /**
-     * Handle touch to start
-     *
-     * @listens Tech#touchstart
-     * @private
-     */
-    ;
-
-    _proto.handleTechTouchStart_ = function handleTechTouchStart_() {
-      this.userWasActive = this.userActive();
-    }
-    /**
-     * Handle touch to move
-     *
-     * @listens Tech#touchmove
-     * @private
-     */
-    ;
-
-    _proto.handleTechTouchMove_ = function handleTechTouchMove_() {
-      if (this.userWasActive) {
-        this.reportUserActivity();
-      }
-    }
-    /**
-     * Handle touch to end
-     *
-     * @param {EventTarget~Event} event
-     *        the touchend event that triggered
-     *        this function
-     *
-     * @listens Tech#touchend
-     * @private
-     */
-    ;
-
-    _proto.handleTechTouchEnd_ = function handleTechTouchEnd_(event) {
-      // Stop the mouse events from also happening
-      if (event.cancelable) {
-        event.preventDefault();
-      }
-    }
-    /**
-     * native click events on the SWF aren't triggered on IE11, Win8.1RT
-     * use stageclick events triggered from inside the SWF instead
-     *
-     * @private
-     * @listens stageclick
-     */
-    ;
-
-    _proto.handleStageClick_ = function handleStageClick_() {
-      this.reportUserActivity();
-    }
-    /**
-     * @private
-     */
-    ;
-
-    _proto.toggleFullscreenClass_ = function toggleFullscreenClass_() {
-      if (this.isFullscreen()) {
-        this.addClass('vjs-fullscreen');
-      } else {
-        this.removeClass('vjs-fullscreen');
-      }
-    }
-    /**
-     * when the document fschange event triggers it calls this
-     */
-    ;
-
-    _proto.documentFullscreenChange_ = function documentFullscreenChange_(e) {
-      var targetPlayer = e.target.player; // if another player was fullscreen
-      // do a null check for targetPlayer because older firefox's would put document as e.target
-
-      if (targetPlayer && targetPlayer !== this) {
-        return;
-      }
-
-      var el = this.el();
-      var isFs = document[this.fsApi_.fullscreenElement] === el;
-
-      if (!isFs && el.matches) {
-        isFs = el.matches(':' + this.fsApi_.fullscreen);
-      } else if (!isFs && el.msMatchesSelector) {
-        isFs = el.msMatchesSelector(':' + this.fsApi_.fullscreen);
-      }
-
-      this.isFullscreen(isFs);
-    }
-    /**
-     * Handle Tech Fullscreen Change
-     *
-     * @param {EventTarget~Event} event
-     *        the fullscreenchange event that triggered this function
-     *
-     * @param {Object} data
-     *        the data that was sent with the event
-     *
-     * @private
-     * @listens Tech#fullscreenchange
-     * @fires Player#fullscreenchange
-     */
-    ;
-
-    _proto.handleTechFullscreenChange_ = function handleTechFullscreenChange_(event, data) {
-      var _this9 = this;
-
-      if (data) {
-        if (data.nativeIOSFullscreen) {
-          this.addClass('vjs-ios-native-fs');
-          this.tech_.one('webkitendfullscreen', function () {
-            _this9.removeClass('vjs-ios-native-fs');
-          });
+        toggleDisplay() {
+            if (this.player_.tech_ && this.player_.tech_.featuresNativeTextTracks) {
+                this.hide();
+            } else {
+                this.show();
+            }
         }
 
-        this.isFullscreen(data.isFullscreen);
-      }
+        /**
+         * Create the {@link Component}'s DOM element.
+         *
+         * @return {Element}
+         *         The element that was created.
+         */
+        createEl() {
+            return super.createEl('div', {
+                className: 'vjs-text-track-display'
+            }, {
+                'translate': 'yes',
+                'aria-live': 'off',
+                'aria-atomic': 'true'
+            });
+        }
+
+        /**
+         * Clear all displayed {@link TextTrack}s.
+         */
+        clearDisplay() {
+            if (typeof window.WebVTT === 'function') {
+                window.WebVTT.processCues(window, [], this.el_);
+            }
+        }
+
+        /**
+         * Update the displayed TextTrack when a either a {@link Player#texttrackchange} or
+         * a {@link Player#fullscreenchange} is fired.
+         *
+         * @listens Player#texttrackchange
+         * @listens Player#fullscreenchange
+         */
+        updateDisplay() {
+            const tracks = this.player_.textTracks();
+            const allowMultipleShowingTracks = this.options_.allowMultipleShowingTracks;
+            this.clearDisplay();
+            if (allowMultipleShowingTracks) {
+                const showingTracks = [];
+                for (let i = 0; i < tracks.length; ++i) {
+                    const track = tracks[i];
+                    if (track.mode !== 'showing') {
+                        continue;
+                    }
+                    showingTracks.push(track);
+                }
+                this.updateForTrack(showingTracks);
+                return;
+            }
+
+            //  Track display prioritization model: if multiple tracks are 'showing',
+            //  display the first 'subtitles' or 'captions' track which is 'showing',
+            //  otherwise display the first 'descriptions' track which is 'showing'
+
+            let descriptionsTrack = null;
+            let captionsSubtitlesTrack = null;
+            let i = tracks.length;
+            while (i--) {
+                const track = tracks[i];
+                if (track.mode === 'showing') {
+                    if (track.kind === 'descriptions') {
+                        descriptionsTrack = track;
+                    } else {
+                        captionsSubtitlesTrack = track;
+                    }
+                }
+            }
+            if (captionsSubtitlesTrack) {
+                if (this.getAttribute('aria-live') !== 'off') {
+                    this.setAttribute('aria-live', 'off');
+                }
+                this.updateForTrack(captionsSubtitlesTrack);
+            } else if (descriptionsTrack) {
+                if (this.getAttribute('aria-live') !== 'assertive') {
+                    this.setAttribute('aria-live', 'assertive');
+                }
+                this.updateForTrack(descriptionsTrack);
+            }
+        }
+
+        /**
+         * Style {@Link TextTrack} activeCues according to {@Link TextTrackSettings}.
+         *
+         * @param {TextTrack} track
+         *        Text track object containing active cues to style.
+         */
+        updateDisplayState(track) {
+            const overrides = this.player_.textTrackSettings.getValues();
+            const cues = track.activeCues;
+            let i = cues.length;
+            while (i--) {
+                const cue = cues[i];
+                if (!cue) {
+                    continue;
+                }
+                const cueDiv = cue.displayState;
+                if (overrides.color) {
+                    cueDiv.firstChild.style.color = overrides.color;
+                }
+                if (overrides.textOpacity) {
+                    tryUpdateStyle(cueDiv.firstChild, 'color', constructColor(overrides.color || '#fff', overrides.textOpacity));
+                }
+                if (overrides.backgroundColor) {
+                    cueDiv.firstChild.style.backgroundColor = overrides.backgroundColor;
+                }
+                if (overrides.backgroundOpacity) {
+                    tryUpdateStyle(cueDiv.firstChild, 'backgroundColor', constructColor(overrides.backgroundColor || '#000', overrides.backgroundOpacity));
+                }
+                if (overrides.windowColor) {
+                    if (overrides.windowOpacity) {
+                        tryUpdateStyle(cueDiv, 'backgroundColor', constructColor(overrides.windowColor, overrides.windowOpacity));
+                    } else {
+                        cueDiv.style.backgroundColor = overrides.windowColor;
+                    }
+                }
+                if (overrides.edgeStyle) {
+                    if (overrides.edgeStyle === 'dropshadow') {
+                        cueDiv.firstChild.style.textShadow = `2px 2px 3px ${darkGray}, 2px 2px 4px ${darkGray}, 2px 2px 5px ${darkGray}`;
+                    } else if (overrides.edgeStyle === 'raised') {
+                        cueDiv.firstChild.style.textShadow = `1px 1px ${darkGray}, 2px 2px ${darkGray}, 3px 3px ${darkGray}`;
+                    } else if (overrides.edgeStyle === 'depressed') {
+                        cueDiv.firstChild.style.textShadow = `1px 1px ${lightGray}, 0 1px ${lightGray}, -1px -1px ${darkGray}, 0 -1px ${darkGray}`;
+                    } else if (overrides.edgeStyle === 'uniform') {
+                        cueDiv.firstChild.style.textShadow = `0 0 4px ${darkGray}, 0 0 4px ${darkGray}, 0 0 4px ${darkGray}, 0 0 4px ${darkGray}`;
+                    }
+                }
+                if (overrides.fontPercent && overrides.fontPercent !== 1) {
+                    const fontSize = window.parseFloat(cueDiv.style.fontSize);
+                    cueDiv.style.fontSize = fontSize * overrides.fontPercent + 'px';
+                    cueDiv.style.height = 'auto';
+                    cueDiv.style.top = 'auto';
+                }
+                if (overrides.fontFamily && overrides.fontFamily !== 'default') {
+                    if (overrides.fontFamily === 'small-caps') {
+                        cueDiv.firstChild.style.fontVariant = 'small-caps';
+                    } else {
+                        cueDiv.firstChild.style.fontFamily = fontMap[overrides.fontFamily];
+                    }
+                }
+            }
+        }
+
+        /**
+         * Add an {@link TextTrack} to to the {@link Tech}s {@link TextTrackList}.
+         *
+         * @param {TextTrack|TextTrack[]} tracks
+         *        Text track object or text track array to be added to the list.
+         */
+        updateForTrack(tracks) {
+            if (!Array.isArray(tracks)) {
+                tracks = [tracks];
+            }
+            if (typeof window.WebVTT !== 'function' || tracks.every(track => {
+                return !track.activeCues;
+            })) {
+                return;
+            }
+            const cues = [];
+
+            // push all active track cues
+            for (let i = 0; i < tracks.length; ++i) {
+                const track = tracks[i];
+                for (let j = 0; j < track.activeCues.length; ++j) {
+                    cues.push(track.activeCues[j]);
+                }
+            }
+
+            // removes all cues before it processes new ones
+            window.WebVTT.processCues(window, cues, this.el_);
+
+            // add unique class to each language text track & add settings styling if necessary
+            for (let i = 0; i < tracks.length; ++i) {
+                const track = tracks[i];
+                for (let j = 0; j < track.activeCues.length; ++j) {
+                    const cueEl = track.activeCues[j].displayState;
+                    addClass(cueEl, 'vjs-text-track-cue', 'vjs-text-track-cue-' + (track.language ? track.language : i));
+                    if (track.language) {
+                        setAttribute(cueEl, 'lang', track.language);
+                    }
+                }
+                if (this.player_.textTrackSettings) {
+                    this.updateDisplayState(track);
+                }
+            }
+        }
+    }
+    Component$1.registerComponent('TextTrackDisplay', TextTrackDisplay);
+
+    /**
+     * @file loading-spinner.js
+     */
+
+    /**
+     * A loading spinner for use during waiting/loading events.
+     *
+     * @extends Component
+     */
+    class LoadingSpinner extends Component$1 {
+        /**
+         * Create the `LoadingSpinner`s DOM element.
+         *
+         * @return {Element}
+         *         The dom element that gets created.
+         */
+        createEl() {
+            const isAudio = this.player_.isAudio();
+            const playerType = this.localize(isAudio ? 'Audio Player' : 'Video Player');
+            const controlText = createEl('span', {
+                className: 'vjs-control-text',
+                textContent: this.localize('{1} is loading.', [playerType])
+            });
+            const el = super.createEl('div', {
+                className: 'vjs-loading-spinner',
+                dir: 'ltr'
+            });
+            el.appendChild(controlText);
+            return el;
+        }
+
+        /**
+         * Update control text on languagechange
+         */
+        handleLanguagechange() {
+            this.$('.vjs-control-text').textContent = this.localize('{1} is loading.', [this.player_.isAudio() ? 'Audio Player' : 'Video Player']);
+        }
+    }
+    Component$1.registerComponent('LoadingSpinner', LoadingSpinner);
+
+    /**
+     * @file button.js
+     */
+
+    /**
+     * Base class for all buttons.
+     *
+     * @extends ClickableComponent
+     */
+    class Button extends ClickableComponent {
+        /**
+         * Create the `Button`s DOM element.
+         *
+         * @param {string} [tag="button"]
+         *        The element's node type. This argument is IGNORED: no matter what
+         *        is passed, it will always create a `button` element.
+         *
+         * @param {Object} [props={}]
+         *        An object of properties that should be set on the element.
+         *
+         * @param {Object} [attributes={}]
+         *        An object of attributes that should be set on the element.
+         *
+         * @return {Element}
+         *         The element that gets created.
+         */
+        createEl(tag, props = {}, attributes = {}) {
+            tag = 'button';
+            props = Object.assign({
+                className: this.buildCSSClass()
+            }, props);
+
+            // Add attributes for button element
+            attributes = Object.assign({
+                // Necessary since the default button type is "submit"
+                type: 'button'
+            }, attributes);
+            const el = createEl(tag, props, attributes);
+            el.appendChild(createEl('span', {
+                className: 'vjs-icon-placeholder'
+            }, {
+                'aria-hidden': true
+            }));
+            this.createControlTextEl(el);
+            return el;
+        }
+
+        /**
+         * Add a child `Component` inside of this `Button`.
+         *
+         * @param {string|Component} child
+         *        The name or instance of a child to add.
+         *
+         * @param {Object} [options={}]
+         *        The key/value store of options that will get passed to children of
+         *        the child.
+         *
+         * @return {Component}
+         *         The `Component` that gets added as a child. When using a string the
+         *         `Component` will get created by this process.
+         *
+         * @deprecated since version 5
+         */
+        addChild(child, options = {}) {
+            const className = this.constructor.name;
+            log$1.warn(`Adding an actionable (user controllable) child to a Button (${className}) is not supported; use a ClickableComponent instead.`);
+
+            // Avoid the error message generated by ClickableComponent's addChild method
+            return Component$1.prototype.addChild.call(this, child, options);
+        }
+
+        /**
+         * Enable the `Button` element so that it can be activated or clicked. Use this with
+         * {@link Button#disable}.
+         */
+        enable() {
+            super.enable();
+            this.el_.removeAttribute('disabled');
+        }
+
+        /**
+         * Disable the `Button` element so that it cannot be activated or clicked. Use this with
+         * {@link Button#enable}.
+         */
+        disable() {
+            super.disable();
+            this.el_.setAttribute('disabled', 'disabled');
+        }
+
+        /**
+         * This gets called when a `Button` has focus and `keydown` is triggered via a key
+         * press.
+         *
+         * @param {Event} event
+         *        The event that caused this function to get called.
+         *
+         * @listens keydown
+         */
+        handleKeyDown(event) {
+            // Ignore Space or Enter key operation, which is handled by the browser for
+            // a button - though not for its super class, ClickableComponent. Also,
+            // prevent the event from propagating through the DOM and triggering Player
+            // hotkeys. We do not preventDefault here because we _want_ the browser to
+            // handle it.
+            if (keycode.isEventKey(event, 'Space') || keycode.isEventKey(event, 'Enter')) {
+                event.stopPropagation();
+                return;
+            }
+
+            // Pass keypress handling up for unsupported keys
+            super.handleKeyDown(event);
+        }
+    }
+    Component$1.registerComponent('Button', Button);
+
+    /**
+     * @file big-play-button.js
+     */
+
+    /**
+     * The initial play button that shows before the video has played. The hiding of the
+     * `BigPlayButton` get done via CSS and `Player` states.
+     *
+     * @extends Button
+     */
+    class BigPlayButton extends Button {
+        constructor(player, options) {
+            super(player, options);
+            this.mouseused_ = false;
+            this.on('mousedown', e => this.handleMouseDown(e));
+        }
+
+        /**
+         * Builds the default DOM `className`.
+         *
+         * @return {string}
+         *         The DOM `className` for this object. Always returns 'vjs-big-play-button'.
+         */
+        buildCSSClass() {
+            return 'vjs-big-play-button';
+        }
+
+        /**
+         * This gets called when a `BigPlayButton` "clicked". See {@link ClickableComponent}
+         * for more detailed information on what a click can be.
+         *
+         * @param {KeyboardEvent} event
+         *        The `keydown`, `tap`, or `click` event that caused this function to be
+         *        called.
+         *
+         * @listens tap
+         * @listens click
+         */
+        handleClick(event) {
+            const playPromise = this.player_.play();
+
+            // exit early if clicked via the mouse
+            if (this.mouseused_ && event.clientX && event.clientY) {
+                silencePromise(playPromise);
+                if (this.player_.tech(true)) {
+                    this.player_.tech(true).focus();
+                }
+                return;
+            }
+            const cb = this.player_.getChild('controlBar');
+            const playToggle = cb && cb.getChild('playToggle');
+            if (!playToggle) {
+                this.player_.tech(true).focus();
+                return;
+            }
+            const playFocus = () => playToggle.focus();
+            if (isPromise(playPromise)) {
+                playPromise.then(playFocus, () => {});
+            } else {
+                this.setTimeout(playFocus, 1);
+            }
+        }
+        handleKeyDown(event) {
+            this.mouseused_ = false;
+            super.handleKeyDown(event);
+        }
+        handleMouseDown(event) {
+            this.mouseused_ = true;
+        }
+    }
+
+    /**
+     * The text that should display over the `BigPlayButton`s controls. Added to for localization.
+     *
+     * @type {string}
+     * @protected
+     */
+    BigPlayButton.prototype.controlText_ = 'Play Video';
+    Component$1.registerComponent('BigPlayButton', BigPlayButton);
+
+    /**
+     * @file close-button.js
+     */
+
+    /**
+     * The `CloseButton` is a `{@link Button}` that fires a `close` event when
+     * it gets clicked.
+     *
+     * @extends Button
+     */
+    class CloseButton extends Button {
+        /**
+         * Creates an instance of the this class.
+         *
+         * @param  { import('./player').default } player
+         *         The `Player` that this class should be attached to.
+         *
+         * @param  {Object} [options]
+         *         The key/value store of player options.
+         */
+        constructor(player, options) {
+            super(player, options);
+            this.controlText(options && options.controlText || this.localize('Close'));
+        }
+
+        /**
+         * Builds the default DOM `className`.
+         *
+         * @return {string}
+         *         The DOM `className` for this object.
+         */
+        buildCSSClass() {
+            return `vjs-close-button ${super.buildCSSClass()}`;
+        }
+
+        /**
+         * This gets called when a `CloseButton` gets clicked. See
+         * {@link ClickableComponent#handleClick} for more information on when
+         * this will be triggered
+         *
+         * @param {Event} event
+         *        The `keydown`, `tap`, or `click` event that caused this function to be
+         *        called.
+         *
+         * @listens tap
+         * @listens click
+         * @fires CloseButton#close
+         */
+        handleClick(event) {
+            /**
+             * Triggered when the a `CloseButton` is clicked.
+             *
+             * @event CloseButton#close
+             * @type {Event}
+             *
+             * @property {boolean} [bubbles=false]
+             *           set to false so that the close event does not
+             *           bubble up to parents if there is no listener
+             */
+            this.trigger({
+                type: 'close',
+                bubbles: false
+            });
+        }
+        /**
+         * Event handler that is called when a `CloseButton` receives a
+         * `keydown` event.
+         *
+         * By default, if the key is Esc, it will trigger a `click` event.
+         *
+         * @param {Event} event
+         *        The `keydown` event that caused this function to be called.
+         *
+         * @listens keydown
+         */
+        handleKeyDown(event) {
+            // Esc button will trigger `click` event
+            if (keycode.isEventKey(event, 'Esc')) {
+                event.preventDefault();
+                event.stopPropagation();
+                this.trigger('click');
+            } else {
+                // Pass keypress handling up for unsupported keys
+                super.handleKeyDown(event);
+            }
+        }
+    }
+    Component$1.registerComponent('CloseButton', CloseButton);
+
+    /**
+     * @file play-toggle.js
+     */
+
+    /**
+     * Button to toggle between play and pause.
+     *
+     * @extends Button
+     */
+    class PlayToggle extends Button {
+        /**
+         * Creates an instance of this class.
+         *
+         * @param { import('./player').default } player
+         *        The `Player` that this class should be attached to.
+         *
+         * @param {Object} [options={}]
+         *        The key/value store of player options.
+         */
+        constructor(player, options = {}) {
+            super(player, options);
+
+            // show or hide replay icon
+            options.replay = options.replay === undefined || options.replay;
+            this.on(player, 'play', e => this.handlePlay(e));
+            this.on(player, 'pause', e => this.handlePause(e));
+            if (options.replay) {
+                this.on(player, 'ended', e => this.handleEnded(e));
+            }
+        }
+
+        /**
+         * Builds the default DOM `className`.
+         *
+         * @return {string}
+         *         The DOM `className` for this object.
+         */
+        buildCSSClass() {
+            return `vjs-play-control ${super.buildCSSClass()}`;
+        }
+
+        /**
+         * This gets called when an `PlayToggle` is "clicked". See
+         * {@link ClickableComponent} for more detailed information on what a click can be.
+         *
+         * @param {Event} [event]
+         *        The `keydown`, `tap`, or `click` event that caused this function to be
+         *        called.
+         *
+         * @listens tap
+         * @listens click
+         */
+        handleClick(event) {
+            if (this.player_.paused()) {
+                silencePromise(this.player_.play());
+            } else {
+                this.player_.pause();
+            }
+        }
+
+        /**
+         * This gets called once after the video has ended and the user seeks so that
+         * we can change the replay button back to a play button.
+         *
+         * @param {Event} [event]
+         *        The event that caused this function to run.
+         *
+         * @listens Player#seeked
+         */
+        handleSeeked(event) {
+            this.removeClass('vjs-ended');
+            if (this.player_.paused()) {
+                this.handlePause(event);
+            } else {
+                this.handlePlay(event);
+            }
+        }
+
+        /**
+         * Add the vjs-playing class to the element so it can change appearance.
+         *
+         * @param {Event} [event]
+         *        The event that caused this function to run.
+         *
+         * @listens Player#play
+         */
+        handlePlay(event) {
+            this.removeClass('vjs-ended', 'vjs-paused');
+            this.addClass('vjs-playing');
+            // change the button text to "Pause"
+            this.controlText('Pause');
+        }
+
+        /**
+         * Add the vjs-paused class to the element so it can change appearance.
+         *
+         * @param {Event} [event]
+         *        The event that caused this function to run.
+         *
+         * @listens Player#pause
+         */
+        handlePause(event) {
+            this.removeClass('vjs-playing');
+            this.addClass('vjs-paused');
+            // change the button text to "Play"
+            this.controlText('Play');
+        }
+
+        /**
+         * Add the vjs-ended class to the element so it can change appearance
+         *
+         * @param {Event} [event]
+         *        The event that caused this function to run.
+         *
+         * @listens Player#ended
+         */
+        handleEnded(event) {
+            this.removeClass('vjs-playing');
+            this.addClass('vjs-ended');
+            // change the button text to "Replay"
+            this.controlText('Replay');
+
+            // on the next seek remove the replay button
+            this.one(this.player_, 'seeked', e => this.handleSeeked(e));
+        }
+    }
+
+    /**
+     * The text that should display over the `PlayToggle`s controls. Added for localization.
+     *
+     * @type {string}
+     * @protected
+     */
+    PlayToggle.prototype.controlText_ = 'Play';
+    Component$1.registerComponent('PlayToggle', PlayToggle);
+
+    /**
+     * @file time-display.js
+     */
+
+    /**
+     * Displays time information about the video
+     *
+     * @extends Component
+     */
+    class TimeDisplay extends Component$1 {
+        /**
+         * Creates an instance of this class.
+         *
+         * @param { import('../../player').default } player
+         *        The `Player` that this class should be attached to.
+         *
+         * @param {Object} [options]
+         *        The key/value store of player options.
+         */
+        constructor(player, options) {
+            super(player, options);
+            this.on(player, ['timeupdate', 'ended'], e => this.updateContent(e));
+            this.updateTextNode_();
+        }
+
+        /**
+         * Create the `Component`'s DOM element
+         *
+         * @return {Element}
+         *         The element that was created.
+         */
+        createEl() {
+            const className = this.buildCSSClass();
+            const el = super.createEl('div', {
+                className: `${className} vjs-time-control vjs-control`
+            });
+            const span = createEl('span', {
+                className: 'vjs-control-text',
+                textContent: `${this.localize(this.labelText_)}\u00a0`
+            }, {
+                role: 'presentation'
+            });
+            el.appendChild(span);
+            this.contentEl_ = createEl('span', {
+                className: `${className}-display`
+            }, {
+                // span elements have no implicit role, but some screen readers (notably VoiceOver)
+                // treat them as a break between items in the DOM when using arrow keys
+                // (or left-to-right swipes on iOS) to read contents of a page. Using
+                // role='presentation' causes VoiceOver to NOT treat this span as a break.
+                role: 'presentation'
+            });
+            el.appendChild(this.contentEl_);
+            return el;
+        }
+        dispose() {
+            this.contentEl_ = null;
+            this.textNode_ = null;
+            super.dispose();
+        }
+
+        /**
+         * Updates the time display text node with a new time
+         *
+         * @param {number} [time=0] the time to update to
+         *
+         * @private
+         */
+        updateTextNode_(time = 0) {
+            time = formatTime(time);
+            if (this.formattedTime_ === time) {
+                return;
+            }
+            this.formattedTime_ = time;
+            this.requestNamedAnimationFrame('TimeDisplay#updateTextNode_', () => {
+                if (!this.contentEl_) {
+                    return;
+                }
+                let oldNode = this.textNode_;
+                if (oldNode && this.contentEl_.firstChild !== oldNode) {
+                    oldNode = null;
+                    log$1.warn('TimeDisplay#updateTextnode_: Prevented replacement of text node element since it was no longer a child of this node. Appending a new node instead.');
+                }
+                this.textNode_ = document.createTextNode(this.formattedTime_);
+                if (!this.textNode_) {
+                    return;
+                }
+                if (oldNode) {
+                    this.contentEl_.replaceChild(this.textNode_, oldNode);
+                } else {
+                    this.contentEl_.appendChild(this.textNode_);
+                }
+            });
+        }
+
+        /**
+         * To be filled out in the child class, should update the displayed time
+         * in accordance with the fact that the current time has changed.
+         *
+         * @param {Event} [event]
+         *        The `timeupdate`  event that caused this to run.
+         *
+         * @listens Player#timeupdate
+         */
+        updateContent(event) {}
+    }
+
+    /**
+     * The text that is added to the `TimeDisplay` for screen reader users.
+     *
+     * @type {string}
+     * @private
+     */
+    TimeDisplay.prototype.labelText_ = 'Time';
+
+    /**
+     * The text that should display over the `TimeDisplay`s controls. Added to for localization.
+     *
+     * @type {string}
+     * @protected
+     *
+     * @deprecated in v7; controlText_ is not used in non-active display Components
+     */
+    TimeDisplay.prototype.controlText_ = 'Time';
+    Component$1.registerComponent('TimeDisplay', TimeDisplay);
+
+    /**
+     * @file current-time-display.js
+     */
+
+    /**
+     * Displays the current time
+     *
+     * @extends Component
+     */
+    class CurrentTimeDisplay extends TimeDisplay {
+        /**
+         * Builds the default DOM `className`.
+         *
+         * @return {string}
+         *         The DOM `className` for this object.
+         */
+        buildCSSClass() {
+            return 'vjs-current-time';
+        }
+
+        /**
+         * Update current time display
+         *
+         * @param {Event} [event]
+         *        The `timeupdate` event that caused this function to run.
+         *
+         * @listens Player#timeupdate
+         */
+        updateContent(event) {
+            // Allows for smooth scrubbing, when player can't keep up.
+            let time;
+            if (this.player_.ended()) {
+                time = this.player_.duration();
+            } else {
+                time = this.player_.scrubbing() ? this.player_.getCache().currentTime : this.player_.currentTime();
+            }
+            this.updateTextNode_(time);
+        }
+    }
+
+    /**
+     * The text that is added to the `CurrentTimeDisplay` for screen reader users.
+     *
+     * @type {string}
+     * @private
+     */
+    CurrentTimeDisplay.prototype.labelText_ = 'Current Time';
+
+    /**
+     * The text that should display over the `CurrentTimeDisplay`s controls. Added to for localization.
+     *
+     * @type {string}
+     * @protected
+     *
+     * @deprecated in v7; controlText_ is not used in non-active display Components
+     */
+    CurrentTimeDisplay.prototype.controlText_ = 'Current Time';
+    Component$1.registerComponent('CurrentTimeDisplay', CurrentTimeDisplay);
+
+    /**
+     * @file duration-display.js
+     */
+
+    /**
+     * Displays the duration
+     *
+     * @extends Component
+     */
+    class DurationDisplay extends TimeDisplay {
+        /**
+         * Creates an instance of this class.
+         *
+         * @param { import('../../player').default } player
+         *        The `Player` that this class should be attached to.
+         *
+         * @param {Object} [options]
+         *        The key/value store of player options.
+         */
+        constructor(player, options) {
+            super(player, options);
+            const updateContent = e => this.updateContent(e);
+
+            // we do not want to/need to throttle duration changes,
+            // as they should always display the changed duration as
+            // it has changed
+            this.on(player, 'durationchange', updateContent);
+
+            // Listen to loadstart because the player duration is reset when a new media element is loaded,
+            // but the durationchange on the user agent will not fire.
+            // @see [Spec]{@link https://www.w3.org/TR/2011/WD-html5-20110113/video.html#media-element-load-algorithm}
+            this.on(player, 'loadstart', updateContent);
+
+            // Also listen for timeupdate (in the parent) and loadedmetadata because removing those
+            // listeners could have broken dependent applications/libraries. These
+            // can likely be removed for 7.0.
+            this.on(player, 'loadedmetadata', updateContent);
+        }
+
+        /**
+         * Builds the default DOM `className`.
+         *
+         * @return {string}
+         *         The DOM `className` for this object.
+         */
+        buildCSSClass() {
+            return 'vjs-duration';
+        }
+
+        /**
+         * Update duration time display.
+         *
+         * @param {Event} [event]
+         *        The `durationchange`, `timeupdate`, or `loadedmetadata` event that caused
+         *        this function to be called.
+         *
+         * @listens Player#durationchange
+         * @listens Player#timeupdate
+         * @listens Player#loadedmetadata
+         */
+        updateContent(event) {
+            const duration = this.player_.duration();
+            this.updateTextNode_(duration);
+        }
+    }
+
+    /**
+     * The text that is added to the `DurationDisplay` for screen reader users.
+     *
+     * @type {string}
+     * @private
+     */
+    DurationDisplay.prototype.labelText_ = 'Duration';
+
+    /**
+     * The text that should display over the `DurationDisplay`s controls. Added to for localization.
+     *
+     * @type {string}
+     * @protected
+     *
+     * @deprecated in v7; controlText_ is not used in non-active display Components
+     */
+    DurationDisplay.prototype.controlText_ = 'Duration';
+    Component$1.registerComponent('DurationDisplay', DurationDisplay);
+
+    /**
+     * @file time-divider.js
+     */
+
+    /**
+     * The separator between the current time and duration.
+     * Can be hidden if it's not needed in the design.
+     *
+     * @extends Component
+     */
+    class TimeDivider extends Component$1 {
+        /**
+         * Create the component's DOM element
+         *
+         * @return {Element}
+         *         The element that was created.
+         */
+        createEl() {
+            const el = super.createEl('div', {
+                className: 'vjs-time-control vjs-time-divider'
+            }, {
+                // this element and its contents can be hidden from assistive techs since
+                // it is made extraneous by the announcement of the control text
+                // for the current time and duration displays
+                'aria-hidden': true
+            });
+            const div = super.createEl('div');
+            const span = super.createEl('span', {
+                textContent: '/'
+            });
+            div.appendChild(span);
+            el.appendChild(div);
+            return el;
+        }
+    }
+    Component$1.registerComponent('TimeDivider', TimeDivider);
+
+    /**
+     * @file remaining-time-display.js
+     */
+
+    /**
+     * Displays the time left in the video
+     *
+     * @extends Component
+     */
+    class RemainingTimeDisplay extends TimeDisplay {
+        /**
+         * Creates an instance of this class.
+         *
+         * @param { import('../../player').default } player
+         *        The `Player` that this class should be attached to.
+         *
+         * @param {Object} [options]
+         *        The key/value store of player options.
+         */
+        constructor(player, options) {
+            super(player, options);
+            this.on(player, 'durationchange', e => this.updateContent(e));
+        }
+
+        /**
+         * Builds the default DOM `className`.
+         *
+         * @return {string}
+         *         The DOM `className` for this object.
+         */
+        buildCSSClass() {
+            return 'vjs-remaining-time';
+        }
+
+        /**
+         * Create the `Component`'s DOM element with the "minus" character prepend to the time
+         *
+         * @return {Element}
+         *         The element that was created.
+         */
+        createEl() {
+            const el = super.createEl();
+            if (this.options_.displayNegative !== false) {
+                el.insertBefore(createEl('span', {}, {
+                    'aria-hidden': true
+                }, '-'), this.contentEl_);
+            }
+            return el;
+        }
+
+        /**
+         * Update remaining time display.
+         *
+         * @param {Event} [event]
+         *        The `timeupdate` or `durationchange` event that caused this to run.
+         *
+         * @listens Player#timeupdate
+         * @listens Player#durationchange
+         */
+        updateContent(event) {
+            if (typeof this.player_.duration() !== 'number') {
+                return;
+            }
+            let time;
+
+            // @deprecated We should only use remainingTimeDisplay
+            // as of video.js 7
+            if (this.player_.ended()) {
+                time = 0;
+            } else if (this.player_.remainingTimeDisplay) {
+                time = this.player_.remainingTimeDisplay();
+            } else {
+                time = this.player_.remainingTime();
+            }
+            this.updateTextNode_(time);
+        }
+    }
+
+    /**
+     * The text that is added to the `RemainingTimeDisplay` for screen reader users.
+     *
+     * @type {string}
+     * @private
+     */
+    RemainingTimeDisplay.prototype.labelText_ = 'Remaining Time';
+
+    /**
+     * The text that should display over the `RemainingTimeDisplay`s controls. Added to for localization.
+     *
+     * @type {string}
+     * @protected
+     *
+     * @deprecated in v7; controlText_ is not used in non-active display Components
+     */
+    RemainingTimeDisplay.prototype.controlText_ = 'Remaining Time';
+    Component$1.registerComponent('RemainingTimeDisplay', RemainingTimeDisplay);
+
+    /**
+     * @file live-display.js
+     */
+
+    // TODO - Future make it click to snap to live
+
+    /**
+     * Displays the live indicator when duration is Infinity.
+     *
+     * @extends Component
+     */
+    class LiveDisplay extends Component$1 {
+        /**
+         * Creates an instance of this class.
+         *
+         * @param { import('./player').default } player
+         *        The `Player` that this class should be attached to.
+         *
+         * @param {Object} [options]
+         *        The key/value store of player options.
+         */
+        constructor(player, options) {
+            super(player, options);
+            this.updateShowing();
+            this.on(this.player(), 'durationchange', e => this.updateShowing(e));
+        }
+
+        /**
+         * Create the `Component`'s DOM element
+         *
+         * @return {Element}
+         *         The element that was created.
+         */
+        createEl() {
+            const el = super.createEl('div', {
+                className: 'vjs-live-control vjs-control'
+            });
+            this.contentEl_ = createEl('div', {
+                className: 'vjs-live-display'
+            }, {
+                'aria-live': 'off'
+            });
+            this.contentEl_.appendChild(createEl('span', {
+                className: 'vjs-control-text',
+                textContent: `${this.localize('Stream Type')}\u00a0`
+            }));
+            this.contentEl_.appendChild(document.createTextNode(this.localize('LIVE')));
+            el.appendChild(this.contentEl_);
+            return el;
+        }
+        dispose() {
+            this.contentEl_ = null;
+            super.dispose();
+        }
+
+        /**
+         * Check the duration to see if the LiveDisplay should be showing or not. Then show/hide
+         * it accordingly
+         *
+         * @param {Event} [event]
+         *        The {@link Player#durationchange} event that caused this function to run.
+         *
+         * @listens Player#durationchange
+         */
+        updateShowing(event) {
+            if (this.player().duration() === Infinity) {
+                this.show();
+            } else {
+                this.hide();
+            }
+        }
+    }
+    Component$1.registerComponent('LiveDisplay', LiveDisplay);
+
+    /**
+     * @file seek-to-live.js
+     */
+
+    /**
+     * Displays the live indicator when duration is Infinity.
+     *
+     * @extends Component
+     */
+    class SeekToLive extends Button {
+        /**
+         * Creates an instance of this class.
+         *
+         * @param { import('./player').default } player
+         *        The `Player` that this class should be attached to.
+         *
+         * @param {Object} [options]
+         *        The key/value store of player options.
+         */
+        constructor(player, options) {
+            super(player, options);
+            this.updateLiveEdgeStatus();
+            if (this.player_.liveTracker) {
+                this.updateLiveEdgeStatusHandler_ = e => this.updateLiveEdgeStatus(e);
+                this.on(this.player_.liveTracker, 'liveedgechange', this.updateLiveEdgeStatusHandler_);
+            }
+        }
+
+        /**
+         * Create the `Component`'s DOM element
+         *
+         * @return {Element}
+         *         The element that was created.
+         */
+        createEl() {
+            const el = super.createEl('button', {
+                className: 'vjs-seek-to-live-control vjs-control'
+            });
+            this.textEl_ = createEl('span', {
+                className: 'vjs-seek-to-live-text',
+                textContent: this.localize('LIVE')
+            }, {
+                'aria-hidden': 'true'
+            });
+            el.appendChild(this.textEl_);
+            return el;
+        }
+
+        /**
+         * Update the state of this button if we are at the live edge
+         * or not
+         */
+        updateLiveEdgeStatus() {
+            // default to live edge
+            if (!this.player_.liveTracker || this.player_.liveTracker.atLiveEdge()) {
+                this.setAttribute('aria-disabled', true);
+                this.addClass('vjs-at-live-edge');
+                this.controlText('Seek to live, currently playing live');
+            } else {
+                this.setAttribute('aria-disabled', false);
+                this.removeClass('vjs-at-live-edge');
+                this.controlText('Seek to live, currently behind live');
+            }
+        }
+
+        /**
+         * On click bring us as near to the live point as possible.
+         * This requires that we wait for the next `live-seekable-change`
+         * event which will happen every segment length seconds.
+         */
+        handleClick() {
+            this.player_.liveTracker.seekToLiveEdge();
+        }
+
+        /**
+         * Dispose of the element and stop tracking
+         */
+        dispose() {
+            if (this.player_.liveTracker) {
+                this.off(this.player_.liveTracker, 'liveedgechange', this.updateLiveEdgeStatusHandler_);
+            }
+            this.textEl_ = null;
+            super.dispose();
+        }
+    }
+    /**
+     * The text that should display over the `SeekToLive`s control. Added for localization.
+     *
+     * @type {string}
+     * @protected
+     */
+    SeekToLive.prototype.controlText_ = 'Seek to live, currently playing live';
+    Component$1.registerComponent('SeekToLive', SeekToLive);
+
+    /**
+     * @file num.js
+     * @module num
+     */
+
+    /**
+     * Keep a number between a min and a max value
+     *
+     * @param {number} number
+     *        The number to clamp
+     *
+     * @param {number} min
+     *        The minimum value
+     * @param {number} max
+     *        The maximum value
+     *
+     * @return {number}
+     *         the clamped number
+     */
+    function clamp(number, min, max) {
+        number = Number(number);
+        return Math.min(max, Math.max(min, isNaN(number) ? min : number));
+    }
+
+    var Num = /*#__PURE__*/Object.freeze({
+        __proto__: null,
+        clamp: clamp
+    });
+
+    /**
+     * @file slider.js
+     */
+
+    /**
+     * The base functionality for a slider. Can be vertical or horizontal.
+     * For instance the volume bar or the seek bar on a video is a slider.
+     *
+     * @extends Component
+     */
+    class Slider extends Component$1 {
+        /**
+         * Create an instance of this class
+         *
+         * @param { import('../player').default } player
+         *        The `Player` that this class should be attached to.
+         *
+         * @param {Object} [options]
+         *        The key/value store of player options.
+         */
+        constructor(player, options) {
+            super(player, options);
+            this.handleMouseDown_ = e => this.handleMouseDown(e);
+            this.handleMouseUp_ = e => this.handleMouseUp(e);
+            this.handleKeyDown_ = e => this.handleKeyDown(e);
+            this.handleClick_ = e => this.handleClick(e);
+            this.handleMouseMove_ = e => this.handleMouseMove(e);
+            this.update_ = e => this.update(e);
+
+            // Set property names to bar to match with the child Slider class is looking for
+            this.bar = this.getChild(this.options_.barName);
+
+            // Set a horizontal or vertical class on the slider depending on the slider type
+            this.vertical(!!this.options_.vertical);
+            this.enable();
+        }
+
+        /**
+         * Are controls are currently enabled for this slider or not.
+         *
+         * @return {boolean}
+         *         true if controls are enabled, false otherwise
+         */
+        enabled() {
+            return this.enabled_;
+        }
+
+        /**
+         * Enable controls for this slider if they are disabled
+         */
+        enable() {
+            if (this.enabled()) {
+                return;
+            }
+            this.on('mousedown', this.handleMouseDown_);
+            this.on('touchstart', this.handleMouseDown_);
+            this.on('keydown', this.handleKeyDown_);
+            this.on('click', this.handleClick_);
+
+            // TODO: deprecated, controlsvisible does not seem to be fired
+            this.on(this.player_, 'controlsvisible', this.update);
+            if (this.playerEvent) {
+                this.on(this.player_, this.playerEvent, this.update);
+            }
+            this.removeClass('disabled');
+            this.setAttribute('tabindex', 0);
+            this.enabled_ = true;
+        }
+
+        /**
+         * Disable controls for this slider if they are enabled
+         */
+        disable() {
+            if (!this.enabled()) {
+                return;
+            }
+            const doc = this.bar.el_.ownerDocument;
+            this.off('mousedown', this.handleMouseDown_);
+            this.off('touchstart', this.handleMouseDown_);
+            this.off('keydown', this.handleKeyDown_);
+            this.off('click', this.handleClick_);
+            this.off(this.player_, 'controlsvisible', this.update_);
+            this.off(doc, 'mousemove', this.handleMouseMove_);
+            this.off(doc, 'mouseup', this.handleMouseUp_);
+            this.off(doc, 'touchmove', this.handleMouseMove_);
+            this.off(doc, 'touchend', this.handleMouseUp_);
+            this.removeAttribute('tabindex');
+            this.addClass('disabled');
+            if (this.playerEvent) {
+                this.off(this.player_, this.playerEvent, this.update);
+            }
+            this.enabled_ = false;
+        }
+
+        /**
+         * Create the `Slider`s DOM element.
+         *
+         * @param {string} type
+         *        Type of element to create.
+         *
+         * @param {Object} [props={}]
+         *        List of properties in Object form.
+         *
+         * @param {Object} [attributes={}]
+         *        list of attributes in Object form.
+         *
+         * @return {Element}
+         *         The element that gets created.
+         */
+        createEl(type, props = {}, attributes = {}) {
+            // Add the slider element class to all sub classes
+            props.className = props.className + ' vjs-slider';
+            props = Object.assign({
+                tabIndex: 0
+            }, props);
+            attributes = Object.assign({
+                'role': 'slider',
+                'aria-valuenow': 0,
+                'aria-valuemin': 0,
+                'aria-valuemax': 100
+            }, attributes);
+            return super.createEl(type, props, attributes);
+        }
+
+        /**
+         * Handle `mousedown` or `touchstart` events on the `Slider`.
+         *
+         * @param {MouseEvent} event
+         *        `mousedown` or `touchstart` event that triggered this function
+         *
+         * @listens mousedown
+         * @listens touchstart
+         * @fires Slider#slideractive
+         */
+        handleMouseDown(event) {
+            const doc = this.bar.el_.ownerDocument;
+            if (event.type === 'mousedown') {
+                event.preventDefault();
+            }
+            // Do not call preventDefault() on touchstart in Chrome
+            // to avoid console warnings. Use a 'touch-action: none' style
+            // instead to prevent unintended scrolling.
+            // https://developers.google.com/web/updates/2017/01/scrolling-intervention
+            if (event.type === 'touchstart' && !IS_CHROME) {
+                event.preventDefault();
+            }
+            blockTextSelection();
+            this.addClass('vjs-sliding');
+            /**
+             * Triggered when the slider is in an active state
+             *
+             * @event Slider#slideractive
+             * @type {MouseEvent}
+             */
+            this.trigger('slideractive');
+            this.on(doc, 'mousemove', this.handleMouseMove_);
+            this.on(doc, 'mouseup', this.handleMouseUp_);
+            this.on(doc, 'touchmove', this.handleMouseMove_);
+            this.on(doc, 'touchend', this.handleMouseUp_);
+            this.handleMouseMove(event, true);
+        }
+
+        /**
+         * Handle the `mousemove`, `touchmove`, and `mousedown` events on this `Slider`.
+         * The `mousemove` and `touchmove` events will only only trigger this function during
+         * `mousedown` and `touchstart`. This is due to {@link Slider#handleMouseDown} and
+         * {@link Slider#handleMouseUp}.
+         *
+         * @param {MouseEvent} event
+         *        `mousedown`, `mousemove`, `touchstart`, or `touchmove` event that triggered
+         *        this function
+         * @param {boolean} mouseDown this is a flag that should be set to true if `handleMouseMove` is called directly. It allows us to skip things that should not happen if coming from mouse down but should happen on regular mouse move handler. Defaults to false.
+         *
+         * @listens mousemove
+         * @listens touchmove
+         */
+        handleMouseMove(event) {}
+
+        /**
+         * Handle `mouseup` or `touchend` events on the `Slider`.
+         *
+         * @param {MouseEvent} event
+         *        `mouseup` or `touchend` event that triggered this function.
+         *
+         * @listens touchend
+         * @listens mouseup
+         * @fires Slider#sliderinactive
+         */
+        handleMouseUp(event) {
+            const doc = this.bar.el_.ownerDocument;
+            unblockTextSelection();
+            this.removeClass('vjs-sliding');
+            /**
+             * Triggered when the slider is no longer in an active state.
+             *
+             * @event Slider#sliderinactive
+             * @type {Event}
+             */
+            this.trigger('sliderinactive');
+            this.off(doc, 'mousemove', this.handleMouseMove_);
+            this.off(doc, 'mouseup', this.handleMouseUp_);
+            this.off(doc, 'touchmove', this.handleMouseMove_);
+            this.off(doc, 'touchend', this.handleMouseUp_);
+            this.update();
+        }
+
+        /**
+         * Update the progress bar of the `Slider`.
+         *
+         * @return {number}
+         *          The percentage of progress the progress bar represents as a
+         *          number from 0 to 1.
+         */
+        update() {
+            // In VolumeBar init we have a setTimeout for update that pops and update
+            // to the end of the execution stack. The player is destroyed before then
+            // update will cause an error
+            // If there's no bar...
+            if (!this.el_ || !this.bar) {
+                return;
+            }
+
+            // clamp progress between 0 and 1
+            // and only round to four decimal places, as we round to two below
+            const progress = this.getProgress();
+            if (progress === this.progress_) {
+                return progress;
+            }
+            this.progress_ = progress;
+            this.requestNamedAnimationFrame('Slider#update', () => {
+                // Set the new bar width or height
+                const sizeKey = this.vertical() ? 'height' : 'width';
+
+                // Convert to a percentage for css value
+                this.bar.el().style[sizeKey] = (progress * 100).toFixed(2) + '%';
+            });
+            return progress;
+        }
+
+        /**
+         * Get the percentage of the bar that should be filled
+         * but clamped and rounded.
+         *
+         * @return {number}
+         *         percentage filled that the slider is
+         */
+        getProgress() {
+            return Number(clamp(this.getPercent(), 0, 1).toFixed(4));
+        }
+
+        /**
+         * Calculate distance for slider
+         *
+         * @param {Event} event
+         *        The event that caused this function to run.
+         *
+         * @return {number}
+         *         The current position of the Slider.
+         *         - position.x for vertical `Slider`s
+         *         - position.y for horizontal `Slider`s
+         */
+        calculateDistance(event) {
+            const position = getPointerPosition(this.el_, event);
+            if (this.vertical()) {
+                return position.y;
+            }
+            return position.x;
+        }
+
+        /**
+         * Handle a `keydown` event on the `Slider`. Watches for left, right, up, and down
+         * arrow keys. This function will only be called when the slider has focus. See
+         * {@link Slider#handleFocus} and {@link Slider#handleBlur}.
+         *
+         * @param {KeyboardEvent} event
+         *        the `keydown` event that caused this function to run.
+         *
+         * @listens keydown
+         */
+        handleKeyDown(event) {
+            // Left and Down Arrows
+            if (keycode.isEventKey(event, 'Left') || keycode.isEventKey(event, 'Down')) {
+                event.preventDefault();
+                event.stopPropagation();
+                this.stepBack();
+
+                // Up and Right Arrows
+            } else if (keycode.isEventKey(event, 'Right') || keycode.isEventKey(event, 'Up')) {
+                event.preventDefault();
+                event.stopPropagation();
+                this.stepForward();
+            } else {
+                // Pass keydown handling up for unsupported keys
+                super.handleKeyDown(event);
+            }
+        }
+
+        /**
+         * Listener for click events on slider, used to prevent clicks
+         *   from bubbling up to parent elements like button menus.
+         *
+         * @param {Object} event
+         *        Event that caused this object to run
+         */
+        handleClick(event) {
+            event.stopPropagation();
+            event.preventDefault();
+        }
+
+        /**
+         * Get/set if slider is horizontal for vertical
+         *
+         * @param {boolean} [bool]
+         *        - true if slider is vertical,
+         *        - false is horizontal
+         *
+         * @return {boolean}
+         *         - true if slider is vertical, and getting
+         *         - false if the slider is horizontal, and getting
+         */
+        vertical(bool) {
+            if (bool === undefined) {
+                return this.vertical_ || false;
+            }
+            this.vertical_ = !!bool;
+            if (this.vertical_) {
+                this.addClass('vjs-slider-vertical');
+            } else {
+                this.addClass('vjs-slider-horizontal');
+            }
+        }
+    }
+    Component$1.registerComponent('Slider', Slider);
+
+    /**
+     * @file load-progress-bar.js
+     */
+
+        // get the percent width of a time compared to the total end
+    const percentify = (time, end) => clamp(time / end * 100, 0, 100).toFixed(2) + '%';
+
+    /**
+     * Shows loading progress
+     *
+     * @extends Component
+     */
+    class LoadProgressBar extends Component$1 {
+        /**
+         * Creates an instance of this class.
+         *
+         * @param { import('../../player').default } player
+         *        The `Player` that this class should be attached to.
+         *
+         * @param {Object} [options]
+         *        The key/value store of player options.
+         */
+        constructor(player, options) {
+            super(player, options);
+            this.partEls_ = [];
+            this.on(player, 'progress', e => this.update(e));
+        }
+
+        /**
+         * Create the `Component`'s DOM element
+         *
+         * @return {Element}
+         *         The element that was created.
+         */
+        createEl() {
+            const el = super.createEl('div', {
+                className: 'vjs-load-progress'
+            });
+            const wrapper = createEl('span', {
+                className: 'vjs-control-text'
+            });
+            const loadedText = createEl('span', {
+                textContent: this.localize('Loaded')
+            });
+            const separator = document.createTextNode(': ');
+            this.percentageEl_ = createEl('span', {
+                className: 'vjs-control-text-loaded-percentage',
+                textContent: '0%'
+            });
+            el.appendChild(wrapper);
+            wrapper.appendChild(loadedText);
+            wrapper.appendChild(separator);
+            wrapper.appendChild(this.percentageEl_);
+            return el;
+        }
+        dispose() {
+            this.partEls_ = null;
+            this.percentageEl_ = null;
+            super.dispose();
+        }
+
+        /**
+         * Update progress bar
+         *
+         * @param {Event} [event]
+         *        The `progress` event that caused this function to run.
+         *
+         * @listens Player#progress
+         */
+        update(event) {
+            this.requestNamedAnimationFrame('LoadProgressBar#update', () => {
+                const liveTracker = this.player_.liveTracker;
+                const buffered = this.player_.buffered();
+                const duration = liveTracker && liveTracker.isLive() ? liveTracker.seekableEnd() : this.player_.duration();
+                const bufferedEnd = this.player_.bufferedEnd();
+                const children = this.partEls_;
+                const percent = percentify(bufferedEnd, duration);
+                if (this.percent_ !== percent) {
+                    // update the width of the progress bar
+                    this.el_.style.width = percent;
+                    // update the control-text
+                    textContent(this.percentageEl_, percent);
+                    this.percent_ = percent;
+                }
+
+                // add child elements to represent the individual buffered time ranges
+                for (let i = 0; i < buffered.length; i++) {
+                    const start = buffered.start(i);
+                    const end = buffered.end(i);
+                    let part = children[i];
+                    if (!part) {
+                        part = this.el_.appendChild(createEl());
+                        children[i] = part;
+                    }
+
+                    //  only update if changed
+                    if (part.dataset.start === start && part.dataset.end === end) {
+                        continue;
+                    }
+                    part.dataset.start = start;
+                    part.dataset.end = end;
+
+                    // set the percent based on the width of the progress bar (bufferedEnd)
+                    part.style.left = percentify(start, bufferedEnd);
+                    part.style.width = percentify(end - start, bufferedEnd);
+                }
+
+                // remove unused buffered range elements
+                for (let i = children.length; i > buffered.length; i--) {
+                    this.el_.removeChild(children[i - 1]);
+                }
+                children.length = buffered.length;
+            });
+        }
+    }
+    Component$1.registerComponent('LoadProgressBar', LoadProgressBar);
+
+    /**
+     * @file time-tooltip.js
+     */
+
+    /**
+     * Time tooltips display a time above the progress bar.
+     *
+     * @extends Component
+     */
+    class TimeTooltip extends Component$1 {
+        /**
+         * Creates an instance of this class.
+         *
+         * @param { import('../../player').default } player
+         *        The {@link Player} that this class should be attached to.
+         *
+         * @param {Object} [options]
+         *        The key/value store of player options.
+         */
+        constructor(player, options) {
+            super(player, options);
+            this.update = throttle(bind_(this, this.update), UPDATE_REFRESH_INTERVAL);
+        }
+
+        /**
+         * Create the time tooltip DOM element
+         *
+         * @return {Element}
+         *         The element that was created.
+         */
+        createEl() {
+            return super.createEl('div', {
+                className: 'vjs-time-tooltip'
+            }, {
+                'aria-hidden': 'true'
+            });
+        }
+
+        /**
+         * Updates the position of the time tooltip relative to the `SeekBar`.
+         *
+         * @param {Object} seekBarRect
+         *        The `ClientRect` for the {@link SeekBar} element.
+         *
+         * @param {number} seekBarPoint
+         *        A number from 0 to 1, representing a horizontal reference point
+         *        from the left edge of the {@link SeekBar}
+         */
+        update(seekBarRect, seekBarPoint, content) {
+            const tooltipRect = findPosition(this.el_);
+            const playerRect = getBoundingClientRect(this.player_.el());
+            const seekBarPointPx = seekBarRect.width * seekBarPoint;
+
+            // do nothing if either rect isn't available
+            // for example, if the player isn't in the DOM for testing
+            if (!playerRect || !tooltipRect) {
+                return;
+            }
+
+            // This is the space left of the `seekBarPoint` available within the bounds
+            // of the player. We calculate any gap between the left edge of the player
+            // and the left edge of the `SeekBar` and add the number of pixels in the
+            // `SeekBar` before hitting the `seekBarPoint`
+            const spaceLeftOfPoint = seekBarRect.left - playerRect.left + seekBarPointPx;
+
+            // This is the space right of the `seekBarPoint` available within the bounds
+            // of the player. We calculate the number of pixels from the `seekBarPoint`
+            // to the right edge of the `SeekBar` and add to that any gap between the
+            // right edge of the `SeekBar` and the player.
+            const spaceRightOfPoint = seekBarRect.width - seekBarPointPx + (playerRect.right - seekBarRect.right);
+
+            // This is the number of pixels by which the tooltip will need to be pulled
+            // further to the right to center it over the `seekBarPoint`.
+            let pullTooltipBy = tooltipRect.width / 2;
+
+            // Adjust the `pullTooltipBy` distance to the left or right depending on
+            // the results of the space calculations above.
+            if (spaceLeftOfPoint < pullTooltipBy) {
+                pullTooltipBy += pullTooltipBy - spaceLeftOfPoint;
+            } else if (spaceRightOfPoint < pullTooltipBy) {
+                pullTooltipBy = spaceRightOfPoint;
+            }
+
+            // Due to the imprecision of decimal/ratio based calculations and varying
+            // rounding behaviors, there are cases where the spacing adjustment is off
+            // by a pixel or two. This adds insurance to these calculations.
+            if (pullTooltipBy < 0) {
+                pullTooltipBy = 0;
+            } else if (pullTooltipBy > tooltipRect.width) {
+                pullTooltipBy = tooltipRect.width;
+            }
+
+            // prevent small width fluctuations within 0.4px from
+            // changing the value below.
+            // This really helps for live to prevent the play
+            // progress time tooltip from jittering
+            pullTooltipBy = Math.round(pullTooltipBy);
+            this.el_.style.right = `-${pullTooltipBy}px`;
+            this.write(content);
+        }
+
+        /**
+         * Write the time to the tooltip DOM element.
+         *
+         * @param {string} content
+         *        The formatted time for the tooltip.
+         */
+        write(content) {
+            textContent(this.el_, content);
+        }
+
+        /**
+         * Updates the position of the time tooltip relative to the `SeekBar`.
+         *
+         * @param {Object} seekBarRect
+         *        The `ClientRect` for the {@link SeekBar} element.
+         *
+         * @param {number} seekBarPoint
+         *        A number from 0 to 1, representing a horizontal reference point
+         *        from the left edge of the {@link SeekBar}
+         *
+         * @param {number} time
+         *        The time to update the tooltip to, not used during live playback
+         *
+         * @param {Function} cb
+         *        A function that will be called during the request animation frame
+         *        for tooltips that need to do additional animations from the default
+         */
+        updateTime(seekBarRect, seekBarPoint, time, cb) {
+            this.requestNamedAnimationFrame('TimeTooltip#updateTime', () => {
+                let content;
+                const duration = this.player_.duration();
+                if (this.player_.liveTracker && this.player_.liveTracker.isLive()) {
+                    const liveWindow = this.player_.liveTracker.liveWindow();
+                    const secondsBehind = liveWindow - seekBarPoint * liveWindow;
+                    content = (secondsBehind < 1 ? '' : '-') + formatTime(secondsBehind, liveWindow);
+                } else {
+                    content = formatTime(time, duration);
+                }
+                this.update(seekBarRect, seekBarPoint, content);
+                if (cb) {
+                    cb();
+                }
+            });
+        }
+    }
+    Component$1.registerComponent('TimeTooltip', TimeTooltip);
+
+    /**
+     * @file play-progress-bar.js
+     */
+
+    /**
+     * Used by {@link SeekBar} to display media playback progress as part of the
+     * {@link ProgressControl}.
+     *
+     * @extends Component
+     */
+    class PlayProgressBar extends Component$1 {
+        /**
+         * Creates an instance of this class.
+         *
+         * @param { import('../../player').default } player
+         *        The {@link Player} that this class should be attached to.
+         *
+         * @param {Object} [options]
+         *        The key/value store of player options.
+         */
+        constructor(player, options) {
+            super(player, options);
+            this.update = throttle(bind_(this, this.update), UPDATE_REFRESH_INTERVAL);
+        }
+
+        /**
+         * Create the the DOM element for this class.
+         *
+         * @return {Element}
+         *         The element that was created.
+         */
+        createEl() {
+            return super.createEl('div', {
+                className: 'vjs-play-progress vjs-slider-bar'
+            }, {
+                'aria-hidden': 'true'
+            });
+        }
+
+        /**
+         * Enqueues updates to its own DOM as well as the DOM of its
+         * {@link TimeTooltip} child.
+         *
+         * @param {Object} seekBarRect
+         *        The `ClientRect` for the {@link SeekBar} element.
+         *
+         * @param {number} seekBarPoint
+         *        A number from 0 to 1, representing a horizontal reference point
+         *        from the left edge of the {@link SeekBar}
+         */
+        update(seekBarRect, seekBarPoint) {
+            const timeTooltip = this.getChild('timeTooltip');
+            if (!timeTooltip) {
+                return;
+            }
+            const time = this.player_.scrubbing() ? this.player_.getCache().currentTime : this.player_.currentTime();
+            timeTooltip.updateTime(seekBarRect, seekBarPoint, time);
+        }
+    }
+
+    /**
+     * Default options for {@link PlayProgressBar}.
+     *
+     * @type {Object}
+     * @private
+     */
+    PlayProgressBar.prototype.options_ = {
+        children: []
     };
 
-    _proto.handleTechFullscreenError_ = function handleTechFullscreenError_(event, err) {
-      this.trigger('fullscreenerror', err);
+    // Time tooltips should not be added to a player on mobile devices
+    if (!IS_IOS && !IS_ANDROID) {
+        PlayProgressBar.prototype.options_.children.push('timeTooltip');
     }
+    Component$1.registerComponent('PlayProgressBar', PlayProgressBar);
+
     /**
-     * @private
+     * @file mouse-time-display.js
      */
-    ;
 
-    _proto.togglePictureInPictureClass_ = function togglePictureInPictureClass_() {
-      if (this.isInPictureInPicture()) {
-        this.addClass('vjs-picture-in-picture');
-      } else {
-        this.removeClass('vjs-picture-in-picture');
-      }
-    }
     /**
-     * Handle Tech Enter Picture-in-Picture.
+     * The {@link MouseTimeDisplay} component tracks mouse movement over the
+     * {@link ProgressControl}. It displays an indicator and a {@link TimeTooltip}
+     * indicating the time which is represented by a given point in the
+     * {@link ProgressControl}.
      *
-     * @param {EventTarget~Event} event
-     *        the enterpictureinpicture event that triggered this function
-     *
-     * @private
-     * @listens Tech#enterpictureinpicture
+     * @extends Component
      */
-    ;
-
-    _proto.handleTechEnterPictureInPicture_ = function handleTechEnterPictureInPicture_(event) {
-      this.isInPictureInPicture(true);
-    }
-    /**
-     * Handle Tech Leave Picture-in-Picture.
-     *
-     * @param {EventTarget~Event} event
-     *        the leavepictureinpicture event that triggered this function
-     *
-     * @private
-     * @listens Tech#leavepictureinpicture
-     */
-    ;
-
-    _proto.handleTechLeavePictureInPicture_ = function handleTechLeavePictureInPicture_(event) {
-      this.isInPictureInPicture(false);
-    }
-    /**
-     * Fires when an error occurred during the loading of an audio/video.
-     *
-     * @private
-     * @listens Tech#error
-     */
-    ;
-
-    _proto.handleTechError_ = function handleTechError_() {
-      var error = this.tech_.error();
-      this.error(error);
-    }
-    /**
-     * Retrigger the `textdata` event that was triggered by the {@link Tech}.
-     *
-     * @fires Player#textdata
-     * @listens Tech#textdata
-     * @private
-     */
-    ;
-
-    _proto.handleTechTextData_ = function handleTechTextData_() {
-      var data = null;
-
-      if (arguments.length > 1) {
-        data = arguments[1];
-      }
-      /**
-       * Fires when we get a textdata event from tech
-       *
-       * @event Player#textdata
-       * @type {EventTarget~Event}
-       */
-
-
-      this.trigger('textdata', data);
-    }
-    /**
-     * Get object for cached values.
-     *
-     * @return {Object}
-     *         get the current object cache
-     */
-    ;
-
-    _proto.getCache = function getCache() {
-      return this.cache_;
-    }
-    /**
-     * Resets the internal cache object.
-     *
-     * Using this function outside the player constructor or reset method may
-     * have unintended side-effects.
-     *
-     * @private
-     */
-    ;
-
-    _proto.resetCache_ = function resetCache_() {
-      this.cache_ = {
-        // Right now, the currentTime is not _really_ cached because it is always
-        // retrieved from the tech (see: currentTime). However, for completeness,
-        // we set it to zero here to ensure that if we do start actually caching
-        // it, we reset it along with everything else.
-        currentTime: 0,
-        initTime: 0,
-        inactivityTimeout: this.options_.inactivityTimeout,
-        duration: NaN,
-        lastVolume: 1,
-        lastPlaybackRate: this.defaultPlaybackRate(),
-        media: null,
-        src: '',
-        source: {},
-        sources: [],
-        playbackRates: [],
-        volume: 1
-      };
-    }
-    /**
-     * Pass values to the playback tech
-     *
-     * @param {string} [method]
-     *        the method to call
-     *
-     * @param {Object} arg
-     *        the argument to pass
-     *
-     * @private
-     */
-    ;
-
-    _proto.techCall_ = function techCall_(method, arg) {
-      // If it's not ready yet, call method when it is
-      this.ready(function () {
-        if (method in allowedSetters) {
-          return set(this.middleware_, this.tech_, method, arg);
-        } else if (method in allowedMediators) {
-          return mediate(this.middleware_, this.tech_, method, arg);
+    class MouseTimeDisplay extends Component$1 {
+        /**
+         * Creates an instance of this class.
+         *
+         * @param { import('../../player').default } player
+         *        The {@link Player} that this class should be attached to.
+         *
+         * @param {Object} [options]
+         *        The key/value store of player options.
+         */
+        constructor(player, options) {
+            super(player, options);
+            this.update = throttle(bind_(this, this.update), UPDATE_REFRESH_INTERVAL);
         }
 
-        try {
-          if (this.tech_) {
-            this.tech_[method](arg);
-          }
-        } catch (e) {
-          log$1(e);
-          throw e;
+        /**
+         * Create the DOM element for this class.
+         *
+         * @return {Element}
+         *         The element that was created.
+         */
+        createEl() {
+            return super.createEl('div', {
+                className: 'vjs-mouse-display'
+            });
+        }
+
+        /**
+         * Enqueues updates to its own DOM as well as the DOM of its
+         * {@link TimeTooltip} child.
+         *
+         * @param {Object} seekBarRect
+         *        The `ClientRect` for the {@link SeekBar} element.
+         *
+         * @param {number} seekBarPoint
+         *        A number from 0 to 1, representing a horizontal reference point
+         *        from the left edge of the {@link SeekBar}
+         */
+        update(seekBarRect, seekBarPoint) {
+            const time = seekBarPoint * this.player_.duration();
+            this.getChild('timeTooltip').updateTime(seekBarRect, seekBarPoint, time, () => {
+                this.el_.style.left = `${seekBarRect.width * seekBarPoint}px`;
+            });
         }
-      }, true);
     }
+
     /**
-     * Get calls can't wait for the tech, and sometimes don't need to.
+     * Default options for `MouseTimeDisplay`
      *
-     * @param {string} method
-     *        Tech method
+     * @type {Object}
+     * @private
+     */
+    MouseTimeDisplay.prototype.options_ = {
+        children: ['timeTooltip']
+    };
+    Component$1.registerComponent('MouseTimeDisplay', MouseTimeDisplay);
+
+    /**
+     * @file seek-bar.js
+     */
+
+        // The number of seconds the `step*` functions move the timeline.
+    const STEP_SECONDS = 5;
+
+    // The multiplier of STEP_SECONDS that PgUp/PgDown move the timeline.
+    const PAGE_KEY_MULTIPLIER = 12;
+
+    /**
+     * Seek bar and container for the progress bars. Uses {@link PlayProgressBar}
+     * as its `bar`.
      *
-     * @return {Function|undefined}
-     *         the method or undefined
+     * @extends Slider
+     */
+    class SeekBar extends Slider {
+        /**
+         * Creates an instance of this class.
+         *
+         * @param { import('../../player').default } player
+         *        The `Player` that this class should be attached to.
+         *
+         * @param {Object} [options]
+         *        The key/value store of player options.
+         */
+        constructor(player, options) {
+            super(player, options);
+            this.setEventHandlers_();
+        }
+
+        /**
+         * Sets the event handlers
+         *
+         * @private
+         */
+        setEventHandlers_() {
+            this.update_ = bind_(this, this.update);
+            this.update = throttle(this.update_, UPDATE_REFRESH_INTERVAL);
+            this.on(this.player_, ['ended', 'durationchange', 'timeupdate'], this.update);
+            if (this.player_.liveTracker) {
+                this.on(this.player_.liveTracker, 'liveedgechange', this.update);
+            }
+
+            // when playing, let's ensure we smoothly update the play progress bar
+            // via an interval
+            this.updateInterval = null;
+            this.enableIntervalHandler_ = e => this.enableInterval_(e);
+            this.disableIntervalHandler_ = e => this.disableInterval_(e);
+            this.on(this.player_, ['playing'], this.enableIntervalHandler_);
+            this.on(this.player_, ['ended', 'pause', 'waiting'], this.disableIntervalHandler_);
+
+            // we don't need to update the play progress if the document is hidden,
+            // also, this causes the CPU to spike and eventually crash the page on IE11.
+            if ('hidden' in document && 'visibilityState' in document) {
+                this.on(document, 'visibilitychange', this.toggleVisibility_);
+            }
+        }
+        toggleVisibility_(e) {
+            if (document.visibilityState === 'hidden') {
+                this.cancelNamedAnimationFrame('SeekBar#update');
+                this.cancelNamedAnimationFrame('Slider#update');
+                this.disableInterval_(e);
+            } else {
+                if (!this.player_.ended() && !this.player_.paused()) {
+                    this.enableInterval_();
+                }
+
+                // we just switched back to the page and someone may be looking, so, update ASAP
+                this.update();
+            }
+        }
+        enableInterval_() {
+            if (this.updateInterval) {
+                return;
+            }
+            this.updateInterval = this.setInterval(this.update, UPDATE_REFRESH_INTERVAL);
+        }
+        disableInterval_(e) {
+            if (this.player_.liveTracker && this.player_.liveTracker.isLive() && e && e.type !== 'ended') {
+                return;
+            }
+            if (!this.updateInterval) {
+                return;
+            }
+            this.clearInterval(this.updateInterval);
+            this.updateInterval = null;
+        }
+
+        /**
+         * Create the `Component`'s DOM element
+         *
+         * @return {Element}
+         *         The element that was created.
+         */
+        createEl() {
+            return super.createEl('div', {
+                className: 'vjs-progress-holder'
+            }, {
+                'aria-label': this.localize('Progress Bar')
+            });
+        }
+
+        /**
+         * This function updates the play progress bar and accessibility
+         * attributes to whatever is passed in.
+         *
+         * @param {Event} [event]
+         *        The `timeupdate` or `ended` event that caused this to run.
+         *
+         * @listens Player#timeupdate
+         *
+         * @return {number}
+         *          The current percent at a number from 0-1
+         */
+        update(event) {
+            // ignore updates while the tab is hidden
+            if (document.visibilityState === 'hidden') {
+                return;
+            }
+            const percent = super.update();
+            this.requestNamedAnimationFrame('SeekBar#update', () => {
+                const currentTime = this.player_.ended() ? this.player_.duration() : this.getCurrentTime_();
+                const liveTracker = this.player_.liveTracker;
+                let duration = this.player_.duration();
+                if (liveTracker && liveTracker.isLive()) {
+                    duration = this.player_.liveTracker.liveCurrentTime();
+                }
+                if (this.percent_ !== percent) {
+                    // machine readable value of progress bar (percentage complete)
+                    this.el_.setAttribute('aria-valuenow', (percent * 100).toFixed(2));
+                    this.percent_ = percent;
+                }
+                if (this.currentTime_ !== currentTime || this.duration_ !== duration) {
+                    // human readable value of progress bar (time complete)
+                    this.el_.setAttribute('aria-valuetext', this.localize('progress bar timing: currentTime={1} duration={2}', [formatTime(currentTime, duration), formatTime(duration, duration)], '{1} of {2}'));
+                    this.currentTime_ = currentTime;
+                    this.duration_ = duration;
+                }
+
+                // update the progress bar time tooltip with the current time
+                if (this.bar) {
+                    this.bar.update(getBoundingClientRect(this.el()), this.getProgress());
+                }
+            });
+            return percent;
+        }
+
+        /**
+         * Prevent liveThreshold from causing seeks to seem like they
+         * are not happening from a user perspective.
+         *
+         * @param {number} ct
+         *        current time to seek to
+         */
+        userSeek_(ct) {
+            if (this.player_.liveTracker && this.player_.liveTracker.isLive()) {
+                this.player_.liveTracker.nextSeekedFromUser();
+            }
+            this.player_.currentTime(ct);
+        }
+
+        /**
+         * Get the value of current time but allows for smooth scrubbing,
+         * when player can't keep up.
+         *
+         * @return {number}
+         *         The current time value to display
+         *
+         * @private
+         */
+        getCurrentTime_() {
+            return this.player_.scrubbing() ? this.player_.getCache().currentTime : this.player_.currentTime();
+        }
+
+        /**
+         * Get the percentage of media played so far.
+         *
+         * @return {number}
+         *         The percentage of media played so far (0 to 1).
+         */
+        getPercent() {
+            const currentTime = this.getCurrentTime_();
+            let percent;
+            const liveTracker = this.player_.liveTracker;
+            if (liveTracker && liveTracker.isLive()) {
+                percent = (currentTime - liveTracker.seekableStart()) / liveTracker.liveWindow();
+
+                // prevent the percent from changing at the live edge
+                if (liveTracker.atLiveEdge()) {
+                    percent = 1;
+                }
+            } else {
+                percent = currentTime / this.player_.duration();
+            }
+            return percent;
+        }
+
+        /**
+         * Handle mouse down on seek bar
+         *
+         * @param {MouseEvent} event
+         *        The `mousedown` event that caused this to run.
+         *
+         * @listens mousedown
+         */
+        handleMouseDown(event) {
+            if (!isSingleLeftClick(event)) {
+                return;
+            }
+
+            // Stop event propagation to prevent double fire in progress-control.js
+            event.stopPropagation();
+            this.videoWasPlaying = !this.player_.paused();
+            this.player_.pause();
+            super.handleMouseDown(event);
+        }
+
+        /**
+         * Handle mouse move on seek bar
+         *
+         * @param {MouseEvent} event
+         *        The `mousemove` event that caused this to run.
+         * @param {boolean} mouseDown this is a flag that should be set to true if `handleMouseMove` is called directly. It allows us to skip things that should not happen if coming from mouse down but should happen on regular mouse move handler. Defaults to false
+         *
+         * @listens mousemove
+         */
+        handleMouseMove(event, mouseDown = false) {
+            if (!isSingleLeftClick(event)) {
+                return;
+            }
+            if (!mouseDown && !this.player_.scrubbing()) {
+                this.player_.scrubbing(true);
+            }
+            let newTime;
+            const distance = this.calculateDistance(event);
+            const liveTracker = this.player_.liveTracker;
+            if (!liveTracker || !liveTracker.isLive()) {
+                newTime = distance * this.player_.duration();
+
+                // Don't let video end while scrubbing.
+                if (newTime === this.player_.duration()) {
+                    newTime = newTime - 0.1;
+                }
+            } else {
+                if (distance >= 0.99) {
+                    liveTracker.seekToLiveEdge();
+                    return;
+                }
+                const seekableStart = liveTracker.seekableStart();
+                const seekableEnd = liveTracker.liveCurrentTime();
+                newTime = seekableStart + distance * liveTracker.liveWindow();
+
+                // Don't let video end while scrubbing.
+                if (newTime >= seekableEnd) {
+                    newTime = seekableEnd;
+                }
+
+                // Compensate for precision differences so that currentTime is not less
+                // than seekable start
+                if (newTime <= seekableStart) {
+                    newTime = seekableStart + 0.1;
+                }
+
+                // On android seekableEnd can be Infinity sometimes,
+                // this will cause newTime to be Infinity, which is
+                // not a valid currentTime.
+                if (newTime === Infinity) {
+                    return;
+                }
+            }
+
+            // Set new time (tell player to seek to new time)
+            this.userSeek_(newTime);
+        }
+        enable() {
+            super.enable();
+            const mouseTimeDisplay = this.getChild('mouseTimeDisplay');
+            if (!mouseTimeDisplay) {
+                return;
+            }
+            mouseTimeDisplay.show();
+        }
+        disable() {
+            super.disable();
+            const mouseTimeDisplay = this.getChild('mouseTimeDisplay');
+            if (!mouseTimeDisplay) {
+                return;
+            }
+            mouseTimeDisplay.hide();
+        }
+
+        /**
+         * Handle mouse up on seek bar
+         *
+         * @param {MouseEvent} event
+         *        The `mouseup` event that caused this to run.
+         *
+         * @listens mouseup
+         */
+        handleMouseUp(event) {
+            super.handleMouseUp(event);
+
+            // Stop event propagation to prevent double fire in progress-control.js
+            if (event) {
+                event.stopPropagation();
+            }
+            this.player_.scrubbing(false);
+
+            /**
+             * Trigger timeupdate because we're done seeking and the time has changed.
+             * This is particularly useful for if the player is paused to time the time displays.
+             *
+             * @event Tech#timeupdate
+             * @type {Event}
+             */
+            this.player_.trigger({
+                type: 'timeupdate',
+                target: this,
+                manuallyTriggered: true
+            });
+            if (this.videoWasPlaying) {
+                silencePromise(this.player_.play());
+            } else {
+                // We're done seeking and the time has changed.
+                // If the player is paused, make sure we display the correct time on the seek bar.
+                this.update_();
+            }
+        }
+
+        /**
+         * Move more quickly fast forward for keyboard-only users
+         */
+        stepForward() {
+            this.userSeek_(this.player_.currentTime() + STEP_SECONDS);
+        }
+
+        /**
+         * Move more quickly rewind for keyboard-only users
+         */
+        stepBack() {
+            this.userSeek_(this.player_.currentTime() - STEP_SECONDS);
+        }
+
+        /**
+         * Toggles the playback state of the player
+         * This gets called when enter or space is used on the seekbar
+         *
+         * @param {KeyboardEvent} event
+         *        The `keydown` event that caused this function to be called
+         *
+         */
+        handleAction(event) {
+            if (this.player_.paused()) {
+                this.player_.play();
+            } else {
+                this.player_.pause();
+            }
+        }
+
+        /**
+         * Called when this SeekBar has focus and a key gets pressed down.
+         * Supports the following keys:
+         *
+         *   Space or Enter key fire a click event
+         *   Home key moves to start of the timeline
+         *   End key moves to end of the timeline
+         *   Digit "0" through "9" keys move to 0%, 10% ... 80%, 90% of the timeline
+         *   PageDown key moves back a larger step than ArrowDown
+         *   PageUp key moves forward a large step
+         *
+         * @param {KeyboardEvent} event
+         *        The `keydown` event that caused this function to be called.
+         *
+         * @listens keydown
+         */
+        handleKeyDown(event) {
+            const liveTracker = this.player_.liveTracker;
+            if (keycode.isEventKey(event, 'Space') || keycode.isEventKey(event, 'Enter')) {
+                event.preventDefault();
+                event.stopPropagation();
+                this.handleAction(event);
+            } else if (keycode.isEventKey(event, 'Home')) {
+                event.preventDefault();
+                event.stopPropagation();
+                this.userSeek_(0);
+            } else if (keycode.isEventKey(event, 'End')) {
+                event.preventDefault();
+                event.stopPropagation();
+                if (liveTracker && liveTracker.isLive()) {
+                    this.userSeek_(liveTracker.liveCurrentTime());
+                } else {
+                    this.userSeek_(this.player_.duration());
+                }
+            } else if (/^[0-9]$/.test(keycode(event))) {
+                event.preventDefault();
+                event.stopPropagation();
+                const gotoFraction = (keycode.codes[keycode(event)] - keycode.codes['0']) * 10.0 / 100.0;
+                if (liveTracker && liveTracker.isLive()) {
+                    this.userSeek_(liveTracker.seekableStart() + liveTracker.liveWindow() * gotoFraction);
+                } else {
+                    this.userSeek_(this.player_.duration() * gotoFraction);
+                }
+            } else if (keycode.isEventKey(event, 'PgDn')) {
+                event.preventDefault();
+                event.stopPropagation();
+                this.userSeek_(this.player_.currentTime() - STEP_SECONDS * PAGE_KEY_MULTIPLIER);
+            } else if (keycode.isEventKey(event, 'PgUp')) {
+                event.preventDefault();
+                event.stopPropagation();
+                this.userSeek_(this.player_.currentTime() + STEP_SECONDS * PAGE_KEY_MULTIPLIER);
+            } else {
+                // Pass keydown handling up for unsupported keys
+                super.handleKeyDown(event);
+            }
+        }
+        dispose() {
+            this.disableInterval_();
+            this.off(this.player_, ['ended', 'durationchange', 'timeupdate'], this.update);
+            if (this.player_.liveTracker) {
+                this.off(this.player_.liveTracker, 'liveedgechange', this.update);
+            }
+            this.off(this.player_, ['playing'], this.enableIntervalHandler_);
+            this.off(this.player_, ['ended', 'pause', 'waiting'], this.disableIntervalHandler_);
+
+            // we don't need to update the play progress if the document is hidden,
+            // also, this causes the CPU to spike and eventually crash the page on IE11.
+            if ('hidden' in document && 'visibilityState' in document) {
+                this.off(document, 'visibilitychange', this.toggleVisibility_);
+            }
+            super.dispose();
+        }
+    }
+
+    /**
+     * Default options for the `SeekBar`
+     *
+     * @type {Object}
+     * @private
+     */
+    SeekBar.prototype.options_ = {
+        children: ['loadProgressBar', 'playProgressBar'],
+        barName: 'playProgressBar'
+    };
+
+    // MouseTimeDisplay tooltips should not be added to a player on mobile devices
+    if (!IS_IOS && !IS_ANDROID) {
+        SeekBar.prototype.options_.children.splice(1, 0, 'mouseTimeDisplay');
+    }
+    Component$1.registerComponent('SeekBar', SeekBar);
+
+    /**
+     * @file progress-control.js
+     */
+
+    /**
+     * The Progress Control component contains the seek bar, load progress,
+     * and play progress.
+     *
+     * @extends Component
+     */
+    class ProgressControl extends Component$1 {
+        /**
+         * Creates an instance of this class.
+         *
+         * @param { import('../../player').default } player
+         *        The `Player` that this class should be attached to.
+         *
+         * @param {Object} [options]
+         *        The key/value store of player options.
+         */
+        constructor(player, options) {
+            super(player, options);
+            this.handleMouseMove = throttle(bind_(this, this.handleMouseMove), UPDATE_REFRESH_INTERVAL);
+            this.throttledHandleMouseSeek = throttle(bind_(this, this.handleMouseSeek), UPDATE_REFRESH_INTERVAL);
+            this.handleMouseUpHandler_ = e => this.handleMouseUp(e);
+            this.handleMouseDownHandler_ = e => this.handleMouseDown(e);
+            this.enable();
+        }
+
+        /**
+         * Create the `Component`'s DOM element
+         *
+         * @return {Element}
+         *         The element that was created.
+         */
+        createEl() {
+            return super.createEl('div', {
+                className: 'vjs-progress-control vjs-control'
+            });
+        }
+
+        /**
+         * When the mouse moves over the `ProgressControl`, the pointer position
+         * gets passed down to the `MouseTimeDisplay` component.
+         *
+         * @param {Event} event
+         *        The `mousemove` event that caused this function to run.
+         *
+         * @listen mousemove
+         */
+        handleMouseMove(event) {
+            const seekBar = this.getChild('seekBar');
+            if (!seekBar) {
+                return;
+            }
+            const playProgressBar = seekBar.getChild('playProgressBar');
+            const mouseTimeDisplay = seekBar.getChild('mouseTimeDisplay');
+            if (!playProgressBar && !mouseTimeDisplay) {
+                return;
+            }
+            const seekBarEl = seekBar.el();
+            const seekBarRect = findPosition(seekBarEl);
+            let seekBarPoint = getPointerPosition(seekBarEl, event).x;
+
+            // The default skin has a gap on either side of the `SeekBar`. This means
+            // that it's possible to trigger this behavior outside the boundaries of
+            // the `SeekBar`. This ensures we stay within it at all times.
+            seekBarPoint = clamp(seekBarPoint, 0, 1);
+            if (mouseTimeDisplay) {
+                mouseTimeDisplay.update(seekBarRect, seekBarPoint);
+            }
+            if (playProgressBar) {
+                playProgressBar.update(seekBarRect, seekBar.getProgress());
+            }
+        }
+
+        /**
+         * A throttled version of the {@link ProgressControl#handleMouseSeek} listener.
+         *
+         * @method ProgressControl#throttledHandleMouseSeek
+         * @param {Event} event
+         *        The `mousemove` event that caused this function to run.
+         *
+         * @listen mousemove
+         * @listen touchmove
+         */
+
+        /**
+         * Handle `mousemove` or `touchmove` events on the `ProgressControl`.
+         *
+         * @param {Event} event
+         *        `mousedown` or `touchstart` event that triggered this function
+         *
+         * @listens mousemove
+         * @listens touchmove
+         */
+        handleMouseSeek(event) {
+            const seekBar = this.getChild('seekBar');
+            if (seekBar) {
+                seekBar.handleMouseMove(event);
+            }
+        }
+
+        /**
+         * Are controls are currently enabled for this progress control.
+         *
+         * @return {boolean}
+         *         true if controls are enabled, false otherwise
+         */
+        enabled() {
+            return this.enabled_;
+        }
+
+        /**
+         * Disable all controls on the progress control and its children
+         */
+        disable() {
+            this.children().forEach(child => child.disable && child.disable());
+            if (!this.enabled()) {
+                return;
+            }
+            this.off(['mousedown', 'touchstart'], this.handleMouseDownHandler_);
+            this.off(this.el_, 'mousemove', this.handleMouseMove);
+            this.removeListenersAddedOnMousedownAndTouchstart();
+            this.addClass('disabled');
+            this.enabled_ = false;
+
+            // Restore normal playback state if controls are disabled while scrubbing
+            if (this.player_.scrubbing()) {
+                const seekBar = this.getChild('seekBar');
+                this.player_.scrubbing(false);
+                if (seekBar.videoWasPlaying) {
+                    silencePromise(this.player_.play());
+                }
+            }
+        }
+
+        /**
+         * Enable all controls on the progress control and its children
+         */
+        enable() {
+            this.children().forEach(child => child.enable && child.enable());
+            if (this.enabled()) {
+                return;
+            }
+            this.on(['mousedown', 'touchstart'], this.handleMouseDownHandler_);
+            this.on(this.el_, 'mousemove', this.handleMouseMove);
+            this.removeClass('disabled');
+            this.enabled_ = true;
+        }
+
+        /**
+         * Cleanup listeners after the user finishes interacting with the progress controls
+         */
+        removeListenersAddedOnMousedownAndTouchstart() {
+            const doc = this.el_.ownerDocument;
+            this.off(doc, 'mousemove', this.throttledHandleMouseSeek);
+            this.off(doc, 'touchmove', this.throttledHandleMouseSeek);
+            this.off(doc, 'mouseup', this.handleMouseUpHandler_);
+            this.off(doc, 'touchend', this.handleMouseUpHandler_);
+        }
+
+        /**
+         * Handle `mousedown` or `touchstart` events on the `ProgressControl`.
+         *
+         * @param {Event} event
+         *        `mousedown` or `touchstart` event that triggered this function
+         *
+         * @listens mousedown
+         * @listens touchstart
+         */
+        handleMouseDown(event) {
+            const doc = this.el_.ownerDocument;
+            const seekBar = this.getChild('seekBar');
+            if (seekBar) {
+                seekBar.handleMouseDown(event);
+            }
+            this.on(doc, 'mousemove', this.throttledHandleMouseSeek);
+            this.on(doc, 'touchmove', this.throttledHandleMouseSeek);
+            this.on(doc, 'mouseup', this.handleMouseUpHandler_);
+            this.on(doc, 'touchend', this.handleMouseUpHandler_);
+        }
+
+        /**
+         * Handle `mouseup` or `touchend` events on the `ProgressControl`.
+         *
+         * @param {Event} event
+         *        `mouseup` or `touchend` event that triggered this function.
+         *
+         * @listens touchend
+         * @listens mouseup
+         */
+        handleMouseUp(event) {
+            const seekBar = this.getChild('seekBar');
+            if (seekBar) {
+                seekBar.handleMouseUp(event);
+            }
+            this.removeListenersAddedOnMousedownAndTouchstart();
+        }
+    }
+
+    /**
+     * Default options for `ProgressControl`
+     *
+     * @type {Object}
+     * @private
+     */
+    ProgressControl.prototype.options_ = {
+        children: ['seekBar']
+    };
+    Component$1.registerComponent('ProgressControl', ProgressControl);
+
+    /**
+     * @file picture-in-picture-toggle.js
+     */
+
+    /**
+     * Toggle Picture-in-Picture mode
+     *
+     * @extends Button
+     */
+    class PictureInPictureToggle extends Button {
+        /**
+         * Creates an instance of this class.
+         *
+         * @param { import('./player').default } player
+         *        The `Player` that this class should be attached to.
+         *
+         * @param {Object} [options]
+         *        The key/value store of player options.
+         *
+         * @listens Player#enterpictureinpicture
+         * @listens Player#leavepictureinpicture
+         */
+        constructor(player, options) {
+            super(player, options);
+            this.on(player, ['enterpictureinpicture', 'leavepictureinpicture'], e => this.handlePictureInPictureChange(e));
+            this.on(player, ['disablepictureinpicturechanged', 'loadedmetadata'], e => this.handlePictureInPictureEnabledChange(e));
+            this.on(player, ['loadedmetadata', 'audioonlymodechange', 'audiopostermodechange'], () => {
+                // This audio detection will not detect HLS or DASH audio-only streams because there was no reliable way to detect them at the time
+                const isSourceAudio = player.currentType().substring(0, 5) === 'audio';
+                if (isSourceAudio || player.audioPosterMode() || player.audioOnlyMode()) {
+                    if (player.isInPictureInPicture()) {
+                        player.exitPictureInPicture();
+                    }
+                    this.hide();
+                } else {
+                    this.show();
+                }
+            });
+
+            // TODO: Deactivate button on player emptied event.
+            this.disable();
+        }
+
+        /**
+         * Builds the default DOM `className`.
+         *
+         * @return {string}
+         *         The DOM `className` for this object.
+         */
+        buildCSSClass() {
+            return `vjs-picture-in-picture-control ${super.buildCSSClass()}`;
+        }
+
+        /**
+         * Enables or disables button based on availability of a Picture-In-Picture mode.
+         *
+         * Enabled if
+         * - `player.options().enableDocumentPictureInPicture` is true and
+         *   window.documentPictureInPicture is available; or
+         * - `player.disablePictureInPicture()` is false and
+         *   element.requestPictureInPicture is available
+         */
+        handlePictureInPictureEnabledChange() {
+            if (document.pictureInPictureEnabled && this.player_.disablePictureInPicture() === false || this.player_.options_.enableDocumentPictureInPicture && 'documentPictureInPicture' in window) {
+                this.enable();
+            } else {
+                this.disable();
+            }
+        }
+
+        /**
+         * Handles enterpictureinpicture and leavepictureinpicture on the player and change control text accordingly.
+         *
+         * @param {Event} [event]
+         *        The {@link Player#enterpictureinpicture} or {@link Player#leavepictureinpicture} event that caused this function to be
+         *        called.
+         *
+         * @listens Player#enterpictureinpicture
+         * @listens Player#leavepictureinpicture
+         */
+        handlePictureInPictureChange(event) {
+            if (this.player_.isInPictureInPicture()) {
+                this.controlText('Exit Picture-in-Picture');
+            } else {
+                this.controlText('Picture-in-Picture');
+            }
+            this.handlePictureInPictureEnabledChange();
+        }
+
+        /**
+         * This gets called when an `PictureInPictureToggle` is "clicked". See
+         * {@link ClickableComponent} for more detailed information on what a click can be.
+         *
+         * @param {Event} [event]
+         *        The `keydown`, `tap`, or `click` event that caused this function to be
+         *        called.
+         *
+         * @listens tap
+         * @listens click
+         */
+        handleClick(event) {
+            if (!this.player_.isInPictureInPicture()) {
+                this.player_.requestPictureInPicture();
+            } else {
+                this.player_.exitPictureInPicture();
+            }
+        }
+    }
+
+    /**
+     * The text that should display over the `PictureInPictureToggle`s controls. Added for localization.
+     *
+     * @type {string}
+     * @protected
+     */
+    PictureInPictureToggle.prototype.controlText_ = 'Picture-in-Picture';
+    Component$1.registerComponent('PictureInPictureToggle', PictureInPictureToggle);
+
+    /**
+     * @file fullscreen-toggle.js
+     */
+
+    /**
+     * Toggle fullscreen video
+     *
+     * @extends Button
+     */
+    class FullscreenToggle extends Button {
+        /**
+         * Creates an instance of this class.
+         *
+         * @param { import('./player').default } player
+         *        The `Player` that this class should be attached to.
+         *
+         * @param {Object} [options]
+         *        The key/value store of player options.
+         */
+        constructor(player, options) {
+            super(player, options);
+            this.on(player, 'fullscreenchange', e => this.handleFullscreenChange(e));
+            if (document[player.fsApi_.fullscreenEnabled] === false) {
+                this.disable();
+            }
+        }
+
+        /**
+         * Builds the default DOM `className`.
+         *
+         * @return {string}
+         *         The DOM `className` for this object.
+         */
+        buildCSSClass() {
+            return `vjs-fullscreen-control ${super.buildCSSClass()}`;
+        }
+
+        /**
+         * Handles fullscreenchange on the player and change control text accordingly.
+         *
+         * @param {Event} [event]
+         *        The {@link Player#fullscreenchange} event that caused this function to be
+         *        called.
+         *
+         * @listens Player#fullscreenchange
+         */
+        handleFullscreenChange(event) {
+            if (this.player_.isFullscreen()) {
+                this.controlText('Exit Fullscreen');
+            } else {
+                this.controlText('Fullscreen');
+            }
+        }
+
+        /**
+         * This gets called when an `FullscreenToggle` is "clicked". See
+         * {@link ClickableComponent} for more detailed information on what a click can be.
+         *
+         * @param {Event} [event]
+         *        The `keydown`, `tap`, or `click` event that caused this function to be
+         *        called.
+         *
+         * @listens tap
+         * @listens click
+         */
+        handleClick(event) {
+            if (!this.player_.isFullscreen()) {
+                this.player_.requestFullscreen();
+            } else {
+                this.player_.exitFullscreen();
+            }
+        }
+    }
+
+    /**
+     * The text that should display over the `FullscreenToggle`s controls. Added for localization.
+     *
+     * @type {string}
+     * @protected
+     */
+    FullscreenToggle.prototype.controlText_ = 'Fullscreen';
+    Component$1.registerComponent('FullscreenToggle', FullscreenToggle);
+
+    /**
+     * Check if volume control is supported and if it isn't hide the
+     * `Component` that was passed  using the `vjs-hidden` class.
+     *
+     * @param { import('../../component').default } self
+     *        The component that should be hidden if volume is unsupported
+     *
+     * @param { import('../../player').default } player
+     *        A reference to the player
      *
      * @private
      */
-    ;
-
-    _proto.techGet_ = function techGet_(method) {
-      if (!this.tech_ || !this.tech_.isReady_) {
-        return;
-      }
-
-      if (method in allowedGetters) {
-        return get(this.middleware_, this.tech_, method);
-      } else if (method in allowedMediators) {
-        return mediate(this.middleware_, this.tech_, method);
-      } // Flash likes to die and reload when you hide or reposition it.
-      // In these cases the object methods go away and we get errors.
-      // TODO: Is this needed for techs other than Flash?
-      // When that happens we'll catch the errors and inform tech that it's not ready any more.
-
-
-      try {
-        return this.tech_[method]();
-      } catch (e) {
-        // When building additional tech libs, an expected method may not be defined yet
-        if (this.tech_[method] === undefined) {
-          log$1("Video.js: " + method + " method not defined for " + this.techName_ + " playback technology.", e);
-          throw e;
-        } // When a method isn't available on the object it throws a TypeError
-
-
-        if (e.name === 'TypeError') {
-          log$1("Video.js: " + method + " unavailable on " + this.techName_ + " playback technology element.", e);
-          this.tech_.isReady_ = false;
-          throw e;
-        } // If error unknown, just log and throw
-
-
-        log$1(e);
-        throw e;
-      }
-    }
-    /**
-     * Attempt to begin playback at the first opportunity.
-     *
-     * @return {Promise|undefined}
-     *         Returns a promise if the browser supports Promises (or one
-     *         was passed in as an option). This promise will be resolved on
-     *         the return value of play. If this is undefined it will fulfill the
-     *         promise chain otherwise the promise chain will be fulfilled when
-     *         the promise from play is fulfilled.
-     */
-    ;
-
-    _proto.play = function play() {
-      var _this10 = this;
-
-      var PromiseClass = this.options_.Promise || window.Promise;
-
-      if (PromiseClass) {
-        return new PromiseClass(function (resolve) {
-          _this10.play_(resolve);
+    const checkVolumeSupport = function (self, player) {
+        // hide volume controls when they're not supported by the current tech
+        if (player.tech_ && !player.tech_.featuresVolumeControl) {
+            self.addClass('vjs-hidden');
+        }
+        self.on(player, 'loadstart', function () {
+            if (!player.tech_.featuresVolumeControl) {
+                self.addClass('vjs-hidden');
+            } else {
+                self.removeClass('vjs-hidden');
+            }
         });
-      }
+    };
 
-      return this.play_();
-    }
     /**
-     * The actual logic for play, takes a callback that will be resolved on the
-     * return value of play. This allows us to resolve to the play promise if there
-     * is one on modern browsers.
+     * @file volume-level.js
+     */
+
+    /**
+     * Shows volume level
+     *
+     * @extends Component
+     */
+    class VolumeLevel extends Component$1 {
+        /**
+         * Create the `Component`'s DOM element
+         *
+         * @return {Element}
+         *         The element that was created.
+         */
+        createEl() {
+            const el = super.createEl('div', {
+                className: 'vjs-volume-level'
+            });
+            el.appendChild(super.createEl('span', {
+                className: 'vjs-control-text'
+            }));
+            return el;
+        }
+    }
+    Component$1.registerComponent('VolumeLevel', VolumeLevel);
+
+    /**
+     * @file volume-level-tooltip.js
+     */
+
+    /**
+     * Volume level tooltips display a volume above or side by side the volume bar.
+     *
+     * @extends Component
+     */
+    class VolumeLevelTooltip extends Component$1 {
+        /**
+         * Creates an instance of this class.
+         *
+         * @param { import('../../player').default } player
+         *        The {@link Player} that this class should be attached to.
+         *
+         * @param {Object} [options]
+         *        The key/value store of player options.
+         */
+        constructor(player, options) {
+            super(player, options);
+            this.update = throttle(bind_(this, this.update), UPDATE_REFRESH_INTERVAL);
+        }
+
+        /**
+         * Create the volume tooltip DOM element
+         *
+         * @return {Element}
+         *         The element that was created.
+         */
+        createEl() {
+            return super.createEl('div', {
+                className: 'vjs-volume-tooltip'
+            }, {
+                'aria-hidden': 'true'
+            });
+        }
+
+        /**
+         * Updates the position of the tooltip relative to the `VolumeBar` and
+         * its content text.
+         *
+         * @param {Object} rangeBarRect
+         *        The `ClientRect` for the {@link VolumeBar} element.
+         *
+         * @param {number} rangeBarPoint
+         *        A number from 0 to 1, representing a horizontal/vertical reference point
+         *        from the left edge of the {@link VolumeBar}
+         *
+         * @param {boolean} vertical
+         *        Referees to the Volume control position
+         *        in the control bar{@link VolumeControl}
+         *
+         */
+        update(rangeBarRect, rangeBarPoint, vertical, content) {
+            if (!vertical) {
+                const tooltipRect = getBoundingClientRect(this.el_);
+                const playerRect = getBoundingClientRect(this.player_.el());
+                const volumeBarPointPx = rangeBarRect.width * rangeBarPoint;
+                if (!playerRect || !tooltipRect) {
+                    return;
+                }
+                const spaceLeftOfPoint = rangeBarRect.left - playerRect.left + volumeBarPointPx;
+                const spaceRightOfPoint = rangeBarRect.width - volumeBarPointPx + (playerRect.right - rangeBarRect.right);
+                let pullTooltipBy = tooltipRect.width / 2;
+                if (spaceLeftOfPoint < pullTooltipBy) {
+                    pullTooltipBy += pullTooltipBy - spaceLeftOfPoint;
+                } else if (spaceRightOfPoint < pullTooltipBy) {
+                    pullTooltipBy = spaceRightOfPoint;
+                }
+                if (pullTooltipBy < 0) {
+                    pullTooltipBy = 0;
+                } else if (pullTooltipBy > tooltipRect.width) {
+                    pullTooltipBy = tooltipRect.width;
+                }
+                this.el_.style.right = `-${pullTooltipBy}px`;
+            }
+            this.write(`${content}%`);
+        }
+
+        /**
+         * Write the volume to the tooltip DOM element.
+         *
+         * @param {string} content
+         *        The formatted volume for the tooltip.
+         */
+        write(content) {
+            textContent(this.el_, content);
+        }
+
+        /**
+         * Updates the position of the volume tooltip relative to the `VolumeBar`.
+         *
+         * @param {Object} rangeBarRect
+         *        The `ClientRect` for the {@link VolumeBar} element.
+         *
+         * @param {number} rangeBarPoint
+         *        A number from 0 to 1, representing a horizontal/vertical reference point
+         *        from the left edge of the {@link VolumeBar}
+         *
+         * @param {boolean} vertical
+         *        Referees to the Volume control position
+         *        in the control bar{@link VolumeControl}
+         *
+         * @param {number} volume
+         *        The volume level to update the tooltip to
+         *
+         * @param {Function} cb
+         *        A function that will be called during the request animation frame
+         *        for tooltips that need to do additional animations from the default
+         */
+        updateVolume(rangeBarRect, rangeBarPoint, vertical, volume, cb) {
+            this.requestNamedAnimationFrame('VolumeLevelTooltip#updateVolume', () => {
+                this.update(rangeBarRect, rangeBarPoint, vertical, volume.toFixed(0));
+                if (cb) {
+                    cb();
+                }
+            });
+        }
+    }
+    Component$1.registerComponent('VolumeLevelTooltip', VolumeLevelTooltip);
+
+    /**
+     * @file mouse-volume-level-display.js
+     */
+
+    /**
+     * The {@link MouseVolumeLevelDisplay} component tracks mouse movement over the
+     * {@link VolumeControl}. It displays an indicator and a {@link VolumeLevelTooltip}
+     * indicating the volume level which is represented by a given point in the
+     * {@link VolumeBar}.
+     *
+     * @extends Component
+     */
+    class MouseVolumeLevelDisplay extends Component$1 {
+        /**
+         * Creates an instance of this class.
+         *
+         * @param { import('../../player').default } player
+         *        The {@link Player} that this class should be attached to.
+         *
+         * @param {Object} [options]
+         *        The key/value store of player options.
+         */
+        constructor(player, options) {
+            super(player, options);
+            this.update = throttle(bind_(this, this.update), UPDATE_REFRESH_INTERVAL);
+        }
+
+        /**
+         * Create the DOM element for this class.
+         *
+         * @return {Element}
+         *         The element that was created.
+         */
+        createEl() {
+            return super.createEl('div', {
+                className: 'vjs-mouse-display'
+            });
+        }
+
+        /**
+         * Enquires updates to its own DOM as well as the DOM of its
+         * {@link VolumeLevelTooltip} child.
+         *
+         * @param {Object} rangeBarRect
+         *        The `ClientRect` for the {@link VolumeBar} element.
+         *
+         * @param {number} rangeBarPoint
+         *        A number from 0 to 1, representing a horizontal/vertical reference point
+         *        from the left edge of the {@link VolumeBar}
+         *
+         * @param {boolean} vertical
+         *        Referees to the Volume control position
+         *        in the control bar{@link VolumeControl}
+         *
+         */
+        update(rangeBarRect, rangeBarPoint, vertical) {
+            const volume = 100 * rangeBarPoint;
+            this.getChild('volumeLevelTooltip').updateVolume(rangeBarRect, rangeBarPoint, vertical, volume, () => {
+                if (vertical) {
+                    this.el_.style.bottom = `${rangeBarRect.height * rangeBarPoint}px`;
+                } else {
+                    this.el_.style.left = `${rangeBarRect.width * rangeBarPoint}px`;
+                }
+            });
+        }
+    }
+
+    /**
+     * Default options for `MouseVolumeLevelDisplay`
+     *
+     * @type {Object}
+     * @private
+     */
+    MouseVolumeLevelDisplay.prototype.options_ = {
+        children: ['volumeLevelTooltip']
+    };
+    Component$1.registerComponent('MouseVolumeLevelDisplay', MouseVolumeLevelDisplay);
+
+    /**
+     * @file volume-bar.js
+     */
+
+    /**
+     * The bar that contains the volume level and can be clicked on to adjust the level
+     *
+     * @extends Slider
+     */
+    class VolumeBar extends Slider {
+        /**
+         * Creates an instance of this class.
+         *
+         * @param { import('../../player').default } player
+         *        The `Player` that this class should be attached to.
+         *
+         * @param {Object} [options]
+         *        The key/value store of player options.
+         */
+        constructor(player, options) {
+            super(player, options);
+            this.on('slideractive', e => this.updateLastVolume_(e));
+            this.on(player, 'volumechange', e => this.updateARIAAttributes(e));
+            player.ready(() => this.updateARIAAttributes());
+        }
+
+        /**
+         * Create the `Component`'s DOM element
+         *
+         * @return {Element}
+         *         The element that was created.
+         */
+        createEl() {
+            return super.createEl('div', {
+                className: 'vjs-volume-bar vjs-slider-bar'
+            }, {
+                'aria-label': this.localize('Volume Level'),
+                'aria-live': 'polite'
+            });
+        }
+
+        /**
+         * Handle mouse down on volume bar
+         *
+         * @param {Event} event
+         *        The `mousedown` event that caused this to run.
+         *
+         * @listens mousedown
+         */
+        handleMouseDown(event) {
+            if (!isSingleLeftClick(event)) {
+                return;
+            }
+            super.handleMouseDown(event);
+        }
+
+        /**
+         * Handle movement events on the {@link VolumeMenuButton}.
+         *
+         * @param {Event} event
+         *        The event that caused this function to run.
+         *
+         * @listens mousemove
+         */
+        handleMouseMove(event) {
+            const mouseVolumeLevelDisplay = this.getChild('mouseVolumeLevelDisplay');
+            if (mouseVolumeLevelDisplay) {
+                const volumeBarEl = this.el();
+                const volumeBarRect = getBoundingClientRect(volumeBarEl);
+                const vertical = this.vertical();
+                let volumeBarPoint = getPointerPosition(volumeBarEl, event);
+                volumeBarPoint = vertical ? volumeBarPoint.y : volumeBarPoint.x;
+                // The default skin has a gap on either side of the `VolumeBar`. This means
+                // that it's possible to trigger this behavior outside the boundaries of
+                // the `VolumeBar`. This ensures we stay within it at all times.
+                volumeBarPoint = clamp(volumeBarPoint, 0, 1);
+                mouseVolumeLevelDisplay.update(volumeBarRect, volumeBarPoint, vertical);
+            }
+            if (!isSingleLeftClick(event)) {
+                return;
+            }
+            this.checkMuted();
+            this.player_.volume(this.calculateDistance(event));
+        }
+
+        /**
+         * If the player is muted unmute it.
+         */
+        checkMuted() {
+            if (this.player_.muted()) {
+                this.player_.muted(false);
+            }
+        }
+
+        /**
+         * Get percent of volume level
+         *
+         * @return {number}
+         *         Volume level percent as a decimal number.
+         */
+        getPercent() {
+            if (this.player_.muted()) {
+                return 0;
+            }
+            return this.player_.volume();
+        }
+
+        /**
+         * Increase volume level for keyboard users
+         */
+        stepForward() {
+            this.checkMuted();
+            this.player_.volume(this.player_.volume() + 0.1);
+        }
+
+        /**
+         * Decrease volume level for keyboard users
+         */
+        stepBack() {
+            this.checkMuted();
+            this.player_.volume(this.player_.volume() - 0.1);
+        }
+
+        /**
+         * Update ARIA accessibility attributes
+         *
+         * @param {Event} [event]
+         *        The `volumechange` event that caused this function to run.
+         *
+         * @listens Player#volumechange
+         */
+        updateARIAAttributes(event) {
+            const ariaValue = this.player_.muted() ? 0 : this.volumeAsPercentage_();
+            this.el_.setAttribute('aria-valuenow', ariaValue);
+            this.el_.setAttribute('aria-valuetext', ariaValue + '%');
+        }
+
+        /**
+         * Returns the current value of the player volume as a percentage
+         *
+         * @private
+         */
+        volumeAsPercentage_() {
+            return Math.round(this.player_.volume() * 100);
+        }
+
+        /**
+         * When user starts dragging the VolumeBar, store the volume and listen for
+         * the end of the drag. When the drag ends, if the volume was set to zero,
+         * set lastVolume to the stored volume.
+         *
+         * @listens slideractive
+         * @private
+         */
+        updateLastVolume_() {
+            const volumeBeforeDrag = this.player_.volume();
+            this.one('sliderinactive', () => {
+                if (this.player_.volume() === 0) {
+                    this.player_.lastVolume_(volumeBeforeDrag);
+                }
+            });
+        }
+    }
+
+    /**
+     * Default options for the `VolumeBar`
+     *
+     * @type {Object}
+     * @private
+     */
+    VolumeBar.prototype.options_ = {
+        children: ['volumeLevel'],
+        barName: 'volumeLevel'
+    };
+
+    // MouseVolumeLevelDisplay tooltip should not be added to a player on mobile devices
+    if (!IS_IOS && !IS_ANDROID) {
+        VolumeBar.prototype.options_.children.splice(0, 0, 'mouseVolumeLevelDisplay');
+    }
+
+    /**
+     * Call the update event for this Slider when this event happens on the player.
+     *
+     * @type {string}
+     */
+    VolumeBar.prototype.playerEvent = 'volumechange';
+    Component$1.registerComponent('VolumeBar', VolumeBar);
+
+    /**
+     * @file volume-control.js
+     */
+
+    /**
+     * The component for controlling the volume level
+     *
+     * @extends Component
+     */
+    class VolumeControl extends Component$1 {
+        /**
+         * Creates an instance of this class.
+         *
+         * @param { import('../../player').default } player
+         *        The `Player` that this class should be attached to.
+         *
+         * @param {Object} [options={}]
+         *        The key/value store of player options.
+         */
+        constructor(player, options = {}) {
+            options.vertical = options.vertical || false;
+
+            // Pass the vertical option down to the VolumeBar if
+            // the VolumeBar is turned on.
+            if (typeof options.volumeBar === 'undefined' || isPlain(options.volumeBar)) {
+                options.volumeBar = options.volumeBar || {};
+                options.volumeBar.vertical = options.vertical;
+            }
+            super(player, options);
+
+            // hide this control if volume support is missing
+            checkVolumeSupport(this, player);
+            this.throttledHandleMouseMove = throttle(bind_(this, this.handleMouseMove), UPDATE_REFRESH_INTERVAL);
+            this.handleMouseUpHandler_ = e => this.handleMouseUp(e);
+            this.on('mousedown', e => this.handleMouseDown(e));
+            this.on('touchstart', e => this.handleMouseDown(e));
+            this.on('mousemove', e => this.handleMouseMove(e));
+
+            // while the slider is active (the mouse has been pressed down and
+            // is dragging) or in focus we do not want to hide the VolumeBar
+            this.on(this.volumeBar, ['focus', 'slideractive'], () => {
+                this.volumeBar.addClass('vjs-slider-active');
+                this.addClass('vjs-slider-active');
+                this.trigger('slideractive');
+            });
+            this.on(this.volumeBar, ['blur', 'sliderinactive'], () => {
+                this.volumeBar.removeClass('vjs-slider-active');
+                this.removeClass('vjs-slider-active');
+                this.trigger('sliderinactive');
+            });
+        }
+
+        /**
+         * Create the `Component`'s DOM element
+         *
+         * @return {Element}
+         *         The element that was created.
+         */
+        createEl() {
+            let orientationClass = 'vjs-volume-horizontal';
+            if (this.options_.vertical) {
+                orientationClass = 'vjs-volume-vertical';
+            }
+            return super.createEl('div', {
+                className: `vjs-volume-control vjs-control ${orientationClass}`
+            });
+        }
+
+        /**
+         * Handle `mousedown` or `touchstart` events on the `VolumeControl`.
+         *
+         * @param {Event} event
+         *        `mousedown` or `touchstart` event that triggered this function
+         *
+         * @listens mousedown
+         * @listens touchstart
+         */
+        handleMouseDown(event) {
+            const doc = this.el_.ownerDocument;
+            this.on(doc, 'mousemove', this.throttledHandleMouseMove);
+            this.on(doc, 'touchmove', this.throttledHandleMouseMove);
+            this.on(doc, 'mouseup', this.handleMouseUpHandler_);
+            this.on(doc, 'touchend', this.handleMouseUpHandler_);
+        }
+
+        /**
+         * Handle `mouseup` or `touchend` events on the `VolumeControl`.
+         *
+         * @param {Event} event
+         *        `mouseup` or `touchend` event that triggered this function.
+         *
+         * @listens touchend
+         * @listens mouseup
+         */
+        handleMouseUp(event) {
+            const doc = this.el_.ownerDocument;
+            this.off(doc, 'mousemove', this.throttledHandleMouseMove);
+            this.off(doc, 'touchmove', this.throttledHandleMouseMove);
+            this.off(doc, 'mouseup', this.handleMouseUpHandler_);
+            this.off(doc, 'touchend', this.handleMouseUpHandler_);
+        }
+
+        /**
+         * Handle `mousedown` or `touchstart` events on the `VolumeControl`.
+         *
+         * @param {Event} event
+         *        `mousedown` or `touchstart` event that triggered this function
+         *
+         * @listens mousedown
+         * @listens touchstart
+         */
+        handleMouseMove(event) {
+            this.volumeBar.handleMouseMove(event);
+        }
+    }
+
+    /**
+     * Default options for the `VolumeControl`
+     *
+     * @type {Object}
+     * @private
+     */
+    VolumeControl.prototype.options_ = {
+        children: ['volumeBar']
+    };
+    Component$1.registerComponent('VolumeControl', VolumeControl);
+
+    /**
+     * Check if muting volume is supported and if it isn't hide the mute toggle
+     * button.
+     *
+     * @param { import('../../component').default } self
+     *        A reference to the mute toggle button
+     *
+     * @param { import('../../player').default } player
+     *        A reference to the player
      *
      * @private
-     * @param {Function} [callback]
-     *        The callback that should be called when the techs play is actually called
      */
-    ;
+    const checkMuteSupport = function (self, player) {
+        // hide mute toggle button if it's not supported by the current tech
+        if (player.tech_ && !player.tech_.featuresMuteControl) {
+            self.addClass('vjs-hidden');
+        }
+        self.on(player, 'loadstart', function () {
+            if (!player.tech_.featuresMuteControl) {
+                self.addClass('vjs-hidden');
+            } else {
+                self.removeClass('vjs-hidden');
+            }
+        });
+    };
 
-    _proto.play_ = function play_(callback) {
-      var _this11 = this;
+    /**
+     * @file mute-toggle.js
+     */
 
-      if (callback === void 0) {
-        callback = silencePromise;
-      }
+    /**
+     * A button component for muting the audio.
+     *
+     * @extends Button
+     */
+    class MuteToggle extends Button {
+        /**
+         * Creates an instance of this class.
+         *
+         * @param { import('./player').default } player
+         *        The `Player` that this class should be attached to.
+         *
+         * @param {Object} [options]
+         *        The key/value store of player options.
+         */
+        constructor(player, options) {
+            super(player, options);
 
-      this.playCallbacks_.push(callback);
-      var isSrcReady = Boolean(!this.changingSrc_ && (this.src() || this.currentSrc())); // treat calls to play_ somewhat like the `one` event function
+            // hide this control if volume support is missing
+            checkMuteSupport(this, player);
+            this.on(player, ['loadstart', 'volumechange'], e => this.update(e));
+        }
 
-      if (this.waitToPlay_) {
-        this.off(['ready', 'loadstart'], this.waitToPlay_);
-        this.waitToPlay_ = null;
-      } // if the player/tech is not ready or the src itself is not ready
-      // queue up a call to play on `ready` or `loadstart`
+        /**
+         * Builds the default DOM `className`.
+         *
+         * @return {string}
+         *         The DOM `className` for this object.
+         */
+        buildCSSClass() {
+            return `vjs-mute-control ${super.buildCSSClass()}`;
+        }
 
+        /**
+         * This gets called when an `MuteToggle` is "clicked". See
+         * {@link ClickableComponent} for more detailed information on what a click can be.
+         *
+         * @param {Event} [event]
+         *        The `keydown`, `tap`, or `click` event that caused this function to be
+         *        called.
+         *
+         * @listens tap
+         * @listens click
+         */
+        handleClick(event) {
+            const vol = this.player_.volume();
+            const lastVolume = this.player_.lastVolume_();
+            if (vol === 0) {
+                const volumeToSet = lastVolume < 0.1 ? 0.1 : lastVolume;
+                this.player_.volume(volumeToSet);
+                this.player_.muted(false);
+            } else {
+                this.player_.muted(this.player_.muted() ? false : true);
+            }
+        }
 
-      if (!this.isReady_ || !isSrcReady) {
-        this.waitToPlay_ = function (e) {
-          _this11.play_();
+        /**
+         * Update the `MuteToggle` button based on the state of `volume` and `muted`
+         * on the player.
+         *
+         * @param {Event} [event]
+         *        The {@link Player#loadstart} event if this function was called
+         *        through an event.
+         *
+         * @listens Player#loadstart
+         * @listens Player#volumechange
+         */
+        update(event) {
+            this.updateIcon_();
+            this.updateControlText_();
+        }
+
+        /**
+         * Update the appearance of the `MuteToggle` icon.
+         *
+         * Possible states (given `level` variable below):
+         * - 0: crossed out
+         * - 1: zero bars of volume
+         * - 2: one bar of volume
+         * - 3: two bars of volume
+         *
+         * @private
+         */
+        updateIcon_() {
+            const vol = this.player_.volume();
+            let level = 3;
+
+            // in iOS when a player is loaded with muted attribute
+            // and volume is changed with a native mute button
+            // we want to make sure muted state is updated
+            if (IS_IOS && this.player_.tech_ && this.player_.tech_.el_) {
+                this.player_.muted(this.player_.tech_.el_.muted);
+            }
+            if (vol === 0 || this.player_.muted()) {
+                level = 0;
+            } else if (vol < 0.33) {
+                level = 1;
+            } else if (vol < 0.67) {
+                level = 2;
+            }
+            removeClass(this.el_, [0, 1, 2, 3].reduce((str, i) => str + `${i ? ' ' : ''}vjs-vol-${i}`, ''));
+            addClass(this.el_, `vjs-vol-${level}`);
+        }
+
+        /**
+         * If `muted` has changed on the player, update the control text
+         * (`title` attribute on `vjs-mute-control` element and content of
+         * `vjs-control-text` element).
+         *
+         * @private
+         */
+        updateControlText_() {
+            const soundOff = this.player_.muted() || this.player_.volume() === 0;
+            const text = soundOff ? 'Unmute' : 'Mute';
+            if (this.controlText() !== text) {
+                this.controlText(text);
+            }
+        }
+    }
+
+    /**
+     * The text that should display over the `MuteToggle`s controls. Added for localization.
+     *
+     * @type {string}
+     * @protected
+     */
+    MuteToggle.prototype.controlText_ = 'Mute';
+    Component$1.registerComponent('MuteToggle', MuteToggle);
+
+    /**
+     * @file volume-control.js
+     */
+
+    /**
+     * A Component to contain the MuteToggle and VolumeControl so that
+     * they can work together.
+     *
+     * @extends Component
+     */
+    class VolumePanel extends Component$1 {
+        /**
+         * Creates an instance of this class.
+         *
+         * @param { import('./player').default } player
+         *        The `Player` that this class should be attached to.
+         *
+         * @param {Object} [options={}]
+         *        The key/value store of player options.
+         */
+        constructor(player, options = {}) {
+            if (typeof options.inline !== 'undefined') {
+                options.inline = options.inline;
+            } else {
+                options.inline = true;
+            }
+
+            // pass the inline option down to the VolumeControl as vertical if
+            // the VolumeControl is on.
+            if (typeof options.volumeControl === 'undefined' || isPlain(options.volumeControl)) {
+                options.volumeControl = options.volumeControl || {};
+                options.volumeControl.vertical = !options.inline;
+            }
+            super(player, options);
+
+            // this handler is used by mouse handler methods below
+            this.handleKeyPressHandler_ = e => this.handleKeyPress(e);
+            this.on(player, ['loadstart'], e => this.volumePanelState_(e));
+            this.on(this.muteToggle, 'keyup', e => this.handleKeyPress(e));
+            this.on(this.volumeControl, 'keyup', e => this.handleVolumeControlKeyUp(e));
+            this.on('keydown', e => this.handleKeyPress(e));
+            this.on('mouseover', e => this.handleMouseOver(e));
+            this.on('mouseout', e => this.handleMouseOut(e));
+
+            // while the slider is active (the mouse has been pressed down and
+            // is dragging) we do not want to hide the VolumeBar
+            this.on(this.volumeControl, ['slideractive'], this.sliderActive_);
+            this.on(this.volumeControl, ['sliderinactive'], this.sliderInactive_);
+        }
+
+        /**
+         * Add vjs-slider-active class to the VolumePanel
+         *
+         * @listens VolumeControl#slideractive
+         * @private
+         */
+        sliderActive_() {
+            this.addClass('vjs-slider-active');
+        }
+
+        /**
+         * Removes vjs-slider-active class to the VolumePanel
+         *
+         * @listens VolumeControl#sliderinactive
+         * @private
+         */
+        sliderInactive_() {
+            this.removeClass('vjs-slider-active');
+        }
+
+        /**
+         * Adds vjs-hidden or vjs-mute-toggle-only to the VolumePanel
+         * depending on MuteToggle and VolumeControl state
+         *
+         * @listens Player#loadstart
+         * @private
+         */
+        volumePanelState_() {
+            // hide volume panel if neither volume control or mute toggle
+            // are displayed
+            if (this.volumeControl.hasClass('vjs-hidden') && this.muteToggle.hasClass('vjs-hidden')) {
+                this.addClass('vjs-hidden');
+            }
+
+            // if only mute toggle is visible we don't want
+            // volume panel expanding when hovered or active
+            if (this.volumeControl.hasClass('vjs-hidden') && !this.muteToggle.hasClass('vjs-hidden')) {
+                this.addClass('vjs-mute-toggle-only');
+            }
+        }
+
+        /**
+         * Create the `Component`'s DOM element
+         *
+         * @return {Element}
+         *         The element that was created.
+         */
+        createEl() {
+            let orientationClass = 'vjs-volume-panel-horizontal';
+            if (!this.options_.inline) {
+                orientationClass = 'vjs-volume-panel-vertical';
+            }
+            return super.createEl('div', {
+                className: `vjs-volume-panel vjs-control ${orientationClass}`
+            });
+        }
+
+        /**
+         * Dispose of the `volume-panel` and all child components.
+         */
+        dispose() {
+            this.handleMouseOut();
+            super.dispose();
+        }
+
+        /**
+         * Handles `keyup` events on the `VolumeControl`, looking for ESC, which closes
+         * the volume panel and sets focus on `MuteToggle`.
+         *
+         * @param {Event} event
+         *        The `keyup` event that caused this function to be called.
+         *
+         * @listens keyup
+         */
+        handleVolumeControlKeyUp(event) {
+            if (keycode.isEventKey(event, 'Esc')) {
+                this.muteToggle.focus();
+            }
+        }
+
+        /**
+         * This gets called when a `VolumePanel` gains hover via a `mouseover` event.
+         * Turns on listening for `mouseover` event. When they happen it
+         * calls `this.handleMouseOver`.
+         *
+         * @param {Event} event
+         *        The `mouseover` event that caused this function to be called.
+         *
+         * @listens mouseover
+         */
+        handleMouseOver(event) {
+            this.addClass('vjs-hover');
+            on(document, 'keyup', this.handleKeyPressHandler_);
+        }
+
+        /**
+         * This gets called when a `VolumePanel` gains hover via a `mouseout` event.
+         * Turns on listening for `mouseout` event. When they happen it
+         * calls `this.handleMouseOut`.
+         *
+         * @param {Event} event
+         *        The `mouseout` event that caused this function to be called.
+         *
+         * @listens mouseout
+         */
+        handleMouseOut(event) {
+            this.removeClass('vjs-hover');
+            off(document, 'keyup', this.handleKeyPressHandler_);
+        }
+
+        /**
+         * Handles `keyup` event on the document or `keydown` event on the `VolumePanel`,
+         * looking for ESC, which hides the `VolumeControl`.
+         *
+         * @param {Event} event
+         *        The keypress that triggered this event.
+         *
+         * @listens keydown | keyup
+         */
+        handleKeyPress(event) {
+            if (keycode.isEventKey(event, 'Esc')) {
+                this.handleMouseOut();
+            }
+        }
+    }
+
+    /**
+     * Default options for the `VolumeControl`
+     *
+     * @type {Object}
+     * @private
+     */
+    VolumePanel.prototype.options_ = {
+        children: ['muteToggle', 'volumeControl']
+    };
+    Component$1.registerComponent('VolumePanel', VolumePanel);
+
+    /**
+     * Button to skip forward a configurable amount of time
+     * through a video. Renders in the control bar.
+     *
+     * e.g. options: {controlBar: {skipButtons: forward: 5}}
+     *
+     * @extends Button
+     */
+    class SkipForward extends Button {
+        constructor(player, options) {
+            super(player, options);
+            this.validOptions = [5, 10, 30];
+            this.skipTime = this.getSkipForwardTime();
+            if (this.skipTime && this.validOptions.includes(this.skipTime)) {
+                this.controlText(this.localize('Skip forward {1} seconds', [this.skipTime]));
+                this.show();
+            } else {
+                this.hide();
+            }
+        }
+        getSkipForwardTime() {
+            const playerOptions = this.options_.playerOptions;
+            return playerOptions.controlBar && playerOptions.controlBar.skipButtons && playerOptions.controlBar.skipButtons.forward;
+        }
+        buildCSSClass() {
+            return `vjs-skip-forward-${this.getSkipForwardTime()} ${super.buildCSSClass()}`;
+        }
+
+        /**
+         * On click, skips forward in the duration/seekable range by a configurable amount of seconds.
+         * If the time left in the duration/seekable range is less than the configured 'skip forward' time,
+         * skips to end of duration/seekable range.
+         *
+         * Handle a click on a `SkipForward` button
+         *
+         * @param {EventTarget~Event} event
+         *        The `click` event that caused this function
+         *        to be called
+         */
+        handleClick(event) {
+            const currentVideoTime = this.player_.currentTime();
+            const liveTracker = this.player_.liveTracker;
+            const duration = liveTracker && liveTracker.isLive() ? liveTracker.seekableEnd() : this.player_.duration();
+            let newTime;
+            if (currentVideoTime + this.skipTime <= duration) {
+                newTime = currentVideoTime + this.skipTime;
+            } else {
+                newTime = duration;
+            }
+            this.player_.currentTime(newTime);
+        }
+
+        /**
+         * Update control text on languagechange
+         */
+        handleLanguagechange() {
+            this.controlText(this.localize('Skip forward {1} seconds', [this.skipTime]));
+        }
+    }
+    Component$1.registerComponent('SkipForward', SkipForward);
+
+    /**
+     * Button to skip backward a configurable amount of time
+     * through a video. Renders in the control bar.
+     *
+     *  * e.g. options: {controlBar: {skipButtons: backward: 5}}
+     *
+     * @extends Button
+     */
+    class SkipBackward extends Button {
+        constructor(player, options) {
+            super(player, options);
+            this.validOptions = [5, 10, 30];
+            this.skipTime = this.getSkipBackwardTime();
+            if (this.skipTime && this.validOptions.includes(this.skipTime)) {
+                this.controlText(this.localize('Skip backward {1} seconds', [this.skipTime]));
+                this.show();
+            } else {
+                this.hide();
+            }
+        }
+        getSkipBackwardTime() {
+            const playerOptions = this.options_.playerOptions;
+            return playerOptions.controlBar && playerOptions.controlBar.skipButtons && playerOptions.controlBar.skipButtons.backward;
+        }
+        buildCSSClass() {
+            return `vjs-skip-backward-${this.getSkipBackwardTime()} ${super.buildCSSClass()}`;
+        }
+
+        /**
+         * On click, skips backward in the video by a configurable amount of seconds.
+         * If the current time in the video is less than the configured 'skip backward' time,
+         * skips to beginning of video or seekable range.
+         *
+         * Handle a click on a `SkipBackward` button
+         *
+         * @param {EventTarget~Event} event
+         *        The `click` event that caused this function
+         *        to be called
+         */
+        handleClick(event) {
+            const currentVideoTime = this.player_.currentTime();
+            const liveTracker = this.player_.liveTracker;
+            const seekableStart = liveTracker && liveTracker.isLive() && liveTracker.seekableStart();
+            let newTime;
+            if (seekableStart && currentVideoTime - this.skipTime <= seekableStart) {
+                newTime = seekableStart;
+            } else if (currentVideoTime >= this.skipTime) {
+                newTime = currentVideoTime - this.skipTime;
+            } else {
+                newTime = 0;
+            }
+            this.player_.currentTime(newTime);
+        }
+
+        /**
+         * Update control text on languagechange
+         */
+        handleLanguagechange() {
+            this.controlText(this.localize('Skip backward {1} seconds', [this.skipTime]));
+        }
+    }
+    SkipBackward.prototype.controlText_ = 'Skip Backward';
+    Component$1.registerComponent('SkipBackward', SkipBackward);
+
+    /**
+     * @file menu.js
+     */
+
+    /**
+     * The Menu component is used to build popup menus, including subtitle and
+     * captions selection menus.
+     *
+     * @extends Component
+     */
+    class Menu extends Component$1 {
+        /**
+         * Create an instance of this class.
+         *
+         * @param { import('../player').default } player
+         *        the player that this component should attach to
+         *
+         * @param {Object} [options]
+         *        Object of option names and values
+         *
+         */
+        constructor(player, options) {
+            super(player, options);
+            if (options) {
+                this.menuButton_ = options.menuButton;
+            }
+            this.focusedChild_ = -1;
+            this.on('keydown', e => this.handleKeyDown(e));
+
+            // All the menu item instances share the same blur handler provided by the menu container.
+            this.boundHandleBlur_ = e => this.handleBlur(e);
+            this.boundHandleTapClick_ = e => this.handleTapClick(e);
+        }
+
+        /**
+         * Add event listeners to the {@link MenuItem}.
+         *
+         * @param {Object} component
+         *        The instance of the `MenuItem` to add listeners to.
+         *
+         */
+        addEventListenerForItem(component) {
+            if (!(component instanceof Component$1)) {
+                return;
+            }
+            this.on(component, 'blur', this.boundHandleBlur_);
+            this.on(component, ['tap', 'click'], this.boundHandleTapClick_);
+        }
+
+        /**
+         * Remove event listeners from the {@link MenuItem}.
+         *
+         * @param {Object} component
+         *        The instance of the `MenuItem` to remove listeners.
+         *
+         */
+        removeEventListenerForItem(component) {
+            if (!(component instanceof Component$1)) {
+                return;
+            }
+            this.off(component, 'blur', this.boundHandleBlur_);
+            this.off(component, ['tap', 'click'], this.boundHandleTapClick_);
+        }
+
+        /**
+         * This method will be called indirectly when the component has been added
+         * before the component adds to the new menu instance by `addItem`.
+         * In this case, the original menu instance will remove the component
+         * by calling `removeChild`.
+         *
+         * @param {Object} component
+         *        The instance of the `MenuItem`
+         */
+        removeChild(component) {
+            if (typeof component === 'string') {
+                component = this.getChild(component);
+            }
+            this.removeEventListenerForItem(component);
+            super.removeChild(component);
+        }
+
+        /**
+         * Add a {@link MenuItem} to the menu.
+         *
+         * @param {Object|string} component
+         *        The name or instance of the `MenuItem` to add.
+         *
+         */
+        addItem(component) {
+            const childComponent = this.addChild(component);
+            if (childComponent) {
+                this.addEventListenerForItem(childComponent);
+            }
+        }
+
+        /**
+         * Create the `Menu`s DOM element.
+         *
+         * @return {Element}
+         *         the element that was created
+         */
+        createEl() {
+            const contentElType = this.options_.contentElType || 'ul';
+            this.contentEl_ = createEl(contentElType, {
+                className: 'vjs-menu-content'
+            });
+            this.contentEl_.setAttribute('role', 'menu');
+            const el = super.createEl('div', {
+                append: this.contentEl_,
+                className: 'vjs-menu'
+            });
+            el.appendChild(this.contentEl_);
+
+            // Prevent clicks from bubbling up. Needed for Menu Buttons,
+            // where a click on the parent is significant
+            on(el, 'click', function (event) {
+                event.preventDefault();
+                event.stopImmediatePropagation();
+            });
+            return el;
+        }
+        dispose() {
+            this.contentEl_ = null;
+            this.boundHandleBlur_ = null;
+            this.boundHandleTapClick_ = null;
+            super.dispose();
+        }
+
+        /**
+         * Called when a `MenuItem` loses focus.
+         *
+         * @param {Event} event
+         *        The `blur` event that caused this function to be called.
+         *
+         * @listens blur
+         */
+        handleBlur(event) {
+            const relatedTarget = event.relatedTarget || document.activeElement;
+
+            // Close menu popup when a user clicks outside the menu
+            if (!this.children().some(element => {
+                return element.el() === relatedTarget;
+            })) {
+                const btn = this.menuButton_;
+                if (btn && btn.buttonPressed_ && relatedTarget !== btn.el().firstChild) {
+                    btn.unpressButton();
+                }
+            }
+        }
+
+        /**
+         * Called when a `MenuItem` gets clicked or tapped.
+         *
+         * @param {Event} event
+         *        The `click` or `tap` event that caused this function to be called.
+         *
+         * @listens click,tap
+         */
+        handleTapClick(event) {
+            // Unpress the associated MenuButton, and move focus back to it
+            if (this.menuButton_) {
+                this.menuButton_.unpressButton();
+                const childComponents = this.children();
+                if (!Array.isArray(childComponents)) {
+                    return;
+                }
+                const foundComponent = childComponents.filter(component => component.el() === event.target)[0];
+                if (!foundComponent) {
+                    return;
+                }
+
+                // don't focus menu button if item is a caption settings item
+                // because focus will move elsewhere
+                if (foundComponent.name() !== 'CaptionSettingsMenuItem') {
+                    this.menuButton_.focus();
+                }
+            }
+        }
+
+        /**
+         * Handle a `keydown` event on this menu. This listener is added in the constructor.
+         *
+         * @param {Event} event
+         *        A `keydown` event that happened on the menu.
+         *
+         * @listens keydown
+         */
+        handleKeyDown(event) {
+            // Left and Down Arrows
+            if (keycode.isEventKey(event, 'Left') || keycode.isEventKey(event, 'Down')) {
+                event.preventDefault();
+                event.stopPropagation();
+                this.stepForward();
+
+                // Up and Right Arrows
+            } else if (keycode.isEventKey(event, 'Right') || keycode.isEventKey(event, 'Up')) {
+                event.preventDefault();
+                event.stopPropagation();
+                this.stepBack();
+            }
+        }
+
+        /**
+         * Move to next (lower) menu item for keyboard users.
+         */
+        stepForward() {
+            let stepChild = 0;
+            if (this.focusedChild_ !== undefined) {
+                stepChild = this.focusedChild_ + 1;
+            }
+            this.focus(stepChild);
+        }
+
+        /**
+         * Move to previous (higher) menu item for keyboard users.
+         */
+        stepBack() {
+            let stepChild = 0;
+            if (this.focusedChild_ !== undefined) {
+                stepChild = this.focusedChild_ - 1;
+            }
+            this.focus(stepChild);
+        }
+
+        /**
+         * Set focus on a {@link MenuItem} in the `Menu`.
+         *
+         * @param {Object|string} [item=0]
+         *        Index of child item set focus on.
+         */
+        focus(item = 0) {
+            const children = this.children().slice();
+            const haveTitle = children.length && children[0].hasClass('vjs-menu-title');
+            if (haveTitle) {
+                children.shift();
+            }
+            if (children.length > 0) {
+                if (item < 0) {
+                    item = 0;
+                } else if (item >= children.length) {
+                    item = children.length - 1;
+                }
+                this.focusedChild_ = item;
+                children[item].el_.focus();
+            }
+        }
+    }
+    Component$1.registerComponent('Menu', Menu);
+
+    /**
+     * @file menu-button.js
+     */
+
+    /**
+     * A `MenuButton` class for any popup {@link Menu}.
+     *
+     * @extends Component
+     */
+    class MenuButton extends Component$1 {
+        /**
+         * Creates an instance of this class.
+         *
+         * @param { import('../player').default } player
+         *        The `Player` that this class should be attached to.
+         *
+         * @param {Object} [options={}]
+         *        The key/value store of player options.
+         */
+        constructor(player, options = {}) {
+            super(player, options);
+            this.menuButton_ = new Button(player, options);
+            this.menuButton_.controlText(this.controlText_);
+            this.menuButton_.el_.setAttribute('aria-haspopup', 'true');
+
+            // Add buildCSSClass values to the button, not the wrapper
+            const buttonClass = Button.prototype.buildCSSClass();
+            this.menuButton_.el_.className = this.buildCSSClass() + ' ' + buttonClass;
+            this.menuButton_.removeClass('vjs-control');
+            this.addChild(this.menuButton_);
+            this.update();
+            this.enabled_ = true;
+            const handleClick = e => this.handleClick(e);
+            this.handleMenuKeyUp_ = e => this.handleMenuKeyUp(e);
+            this.on(this.menuButton_, 'tap', handleClick);
+            this.on(this.menuButton_, 'click', handleClick);
+            this.on(this.menuButton_, 'keydown', e => this.handleKeyDown(e));
+            this.on(this.menuButton_, 'mouseenter', () => {
+                this.addClass('vjs-hover');
+                this.menu.show();
+                on(document, 'keyup', this.handleMenuKeyUp_);
+            });
+            this.on('mouseleave', e => this.handleMouseLeave(e));
+            this.on('keydown', e => this.handleSubmenuKeyDown(e));
+        }
+
+        /**
+         * Update the menu based on the current state of its items.
+         */
+        update() {
+            const menu = this.createMenu();
+            if (this.menu) {
+                this.menu.dispose();
+                this.removeChild(this.menu);
+            }
+            this.menu = menu;
+            this.addChild(menu);
+
+            /**
+             * Track the state of the menu button
+             *
+             * @type {Boolean}
+             * @private
+             */
+            this.buttonPressed_ = false;
+            this.menuButton_.el_.setAttribute('aria-expanded', 'false');
+            if (this.items && this.items.length <= this.hideThreshold_) {
+                this.hide();
+                this.menu.contentEl_.removeAttribute('role');
+            } else {
+                this.show();
+                this.menu.contentEl_.setAttribute('role', 'menu');
+            }
+        }
+
+        /**
+         * Create the menu and add all items to it.
+         *
+         * @return {Menu}
+         *         The constructed menu
+         */
+        createMenu() {
+            const menu = new Menu(this.player_, {
+                menuButton: this
+            });
+
+            /**
+             * Hide the menu if the number of items is less than or equal to this threshold. This defaults
+             * to 0 and whenever we add items which can be hidden to the menu we'll increment it. We list
+             * it here because every time we run `createMenu` we need to reset the value.
+             *
+             * @protected
+             * @type {Number}
+             */
+            this.hideThreshold_ = 0;
+
+            // Add a title list item to the top
+            if (this.options_.title) {
+                const titleEl = createEl('li', {
+                    className: 'vjs-menu-title',
+                    textContent: toTitleCase$1(this.options_.title),
+                    tabIndex: -1
+                });
+                const titleComponent = new Component$1(this.player_, {
+                    el: titleEl
+                });
+                menu.addItem(titleComponent);
+            }
+            this.items = this.createItems();
+            if (this.items) {
+                // Add menu items to the menu
+                for (let i = 0; i < this.items.length; i++) {
+                    menu.addItem(this.items[i]);
+                }
+            }
+            return menu;
+        }
+
+        /**
+         * Create the list of menu items. Specific to each subclass.
+         *
+         * @abstract
+         */
+        createItems() {}
+
+        /**
+         * Create the `MenuButtons`s DOM element.
+         *
+         * @return {Element}
+         *         The element that gets created.
+         */
+        createEl() {
+            return super.createEl('div', {
+                className: this.buildWrapperCSSClass()
+            }, {});
+        }
+
+        /**
+         * Allow sub components to stack CSS class names for the wrapper element
+         *
+         * @return {string}
+         *         The constructed wrapper DOM `className`
+         */
+        buildWrapperCSSClass() {
+            let menuButtonClass = 'vjs-menu-button';
+
+            // If the inline option is passed, we want to use different styles altogether.
+            if (this.options_.inline === true) {
+                menuButtonClass += '-inline';
+            } else {
+                menuButtonClass += '-popup';
+            }
+
+            // TODO: Fix the CSS so that this isn't necessary
+            const buttonClass = Button.prototype.buildCSSClass();
+            return `vjs-menu-button ${menuButtonClass} ${buttonClass} ${super.buildCSSClass()}`;
+        }
+
+        /**
+         * Builds the default DOM `className`.
+         *
+         * @return {string}
+         *         The DOM `className` for this object.
+         */
+        buildCSSClass() {
+            let menuButtonClass = 'vjs-menu-button';
+
+            // If the inline option is passed, we want to use different styles altogether.
+            if (this.options_.inline === true) {
+                menuButtonClass += '-inline';
+            } else {
+                menuButtonClass += '-popup';
+            }
+            return `vjs-menu-button ${menuButtonClass} ${super.buildCSSClass()}`;
+        }
+
+        /**
+         * Get or set the localized control text that will be used for accessibility.
+         *
+         * > NOTE: This will come from the internal `menuButton_` element.
+         *
+         * @param {string} [text]
+         *        Control text for element.
+         *
+         * @param {Element} [el=this.menuButton_.el()]
+         *        Element to set the title on.
+         *
+         * @return {string}
+         *         - The control text when getting
+         */
+        controlText(text, el = this.menuButton_.el()) {
+            return this.menuButton_.controlText(text, el);
+        }
+
+        /**
+         * Dispose of the `menu-button` and all child components.
+         */
+        dispose() {
+            this.handleMouseLeave();
+            super.dispose();
+        }
+
+        /**
+         * Handle a click on a `MenuButton`.
+         * See {@link ClickableComponent#handleClick} for instances where this is called.
+         *
+         * @param {Event} event
+         *        The `keydown`, `tap`, or `click` event that caused this function to be
+         *        called.
+         *
+         * @listens tap
+         * @listens click
+         */
+        handleClick(event) {
+            if (this.buttonPressed_) {
+                this.unpressButton();
+            } else {
+                this.pressButton();
+            }
+        }
+
+        /**
+         * Handle `mouseleave` for `MenuButton`.
+         *
+         * @param {Event} event
+         *        The `mouseleave` event that caused this function to be called.
+         *
+         * @listens mouseleave
+         */
+        handleMouseLeave(event) {
+            this.removeClass('vjs-hover');
+            off(document, 'keyup', this.handleMenuKeyUp_);
+        }
+
+        /**
+         * Set the focus to the actual button, not to this element
+         */
+        focus() {
+            this.menuButton_.focus();
+        }
+
+        /**
+         * Remove the focus from the actual button, not this element
+         */
+        blur() {
+            this.menuButton_.blur();
+        }
+
+        /**
+         * Handle tab, escape, down arrow, and up arrow keys for `MenuButton`. See
+         * {@link ClickableComponent#handleKeyDown} for instances where this is called.
+         *
+         * @param {Event} event
+         *        The `keydown` event that caused this function to be called.
+         *
+         * @listens keydown
+         */
+        handleKeyDown(event) {
+            // Escape or Tab unpress the 'button'
+            if (keycode.isEventKey(event, 'Esc') || keycode.isEventKey(event, 'Tab')) {
+                if (this.buttonPressed_) {
+                    this.unpressButton();
+                }
+
+                // Don't preventDefault for Tab key - we still want to lose focus
+                if (!keycode.isEventKey(event, 'Tab')) {
+                    event.preventDefault();
+                    // Set focus back to the menu button's button
+                    this.menuButton_.focus();
+                }
+                // Up Arrow or Down Arrow also 'press' the button to open the menu
+            } else if (keycode.isEventKey(event, 'Up') || keycode.isEventKey(event, 'Down')) {
+                if (!this.buttonPressed_) {
+                    event.preventDefault();
+                    this.pressButton();
+                }
+            }
+        }
+
+        /**
+         * Handle a `keyup` event on a `MenuButton`. The listener for this is added in
+         * the constructor.
+         *
+         * @param {Event} event
+         *        Key press event
+         *
+         * @listens keyup
+         */
+        handleMenuKeyUp(event) {
+            // Escape hides popup menu
+            if (keycode.isEventKey(event, 'Esc') || keycode.isEventKey(event, 'Tab')) {
+                this.removeClass('vjs-hover');
+            }
+        }
+
+        /**
+         * This method name now delegates to `handleSubmenuKeyDown`. This means
+         * anyone calling `handleSubmenuKeyPress` will not see their method calls
+         * stop working.
+         *
+         * @param {Event} event
+         *        The event that caused this function to be called.
+         */
+        handleSubmenuKeyPress(event) {
+            this.handleSubmenuKeyDown(event);
+        }
+
+        /**
+         * Handle a `keydown` event on a sub-menu. The listener for this is added in
+         * the constructor.
+         *
+         * @param {Event} event
+         *        Key press event
+         *
+         * @listens keydown
+         */
+        handleSubmenuKeyDown(event) {
+            // Escape or Tab unpress the 'button'
+            if (keycode.isEventKey(event, 'Esc') || keycode.isEventKey(event, 'Tab')) {
+                if (this.buttonPressed_) {
+                    this.unpressButton();
+                }
+                // Don't preventDefault for Tab key - we still want to lose focus
+                if (!keycode.isEventKey(event, 'Tab')) {
+                    event.preventDefault();
+                    // Set focus back to the menu button's button
+                    this.menuButton_.focus();
+                }
+            }
+        }
+
+        /**
+         * Put the current `MenuButton` into a pressed state.
+         */
+        pressButton() {
+            if (this.enabled_) {
+                this.buttonPressed_ = true;
+                this.menu.show();
+                this.menu.lockShowing();
+                this.menuButton_.el_.setAttribute('aria-expanded', 'true');
+
+                // set the focus into the submenu, except on iOS where it is resulting in
+                // undesired scrolling behavior when the player is in an iframe
+                if (IS_IOS && isInFrame()) {
+                    // Return early so that the menu isn't focused
+                    return;
+                }
+                this.menu.focus();
+            }
+        }
+
+        /**
+         * Take the current `MenuButton` out of a pressed state.
+         */
+        unpressButton() {
+            if (this.enabled_) {
+                this.buttonPressed_ = false;
+                this.menu.unlockShowing();
+                this.menu.hide();
+                this.menuButton_.el_.setAttribute('aria-expanded', 'false');
+            }
+        }
+
+        /**
+         * Disable the `MenuButton`. Don't allow it to be clicked.
+         */
+        disable() {
+            this.unpressButton();
+            this.enabled_ = false;
+            this.addClass('vjs-disabled');
+            this.menuButton_.disable();
+        }
+
+        /**
+         * Enable the `MenuButton`. Allow it to be clicked.
+         */
+        enable() {
+            this.enabled_ = true;
+            this.removeClass('vjs-disabled');
+            this.menuButton_.enable();
+        }
+    }
+    Component$1.registerComponent('MenuButton', MenuButton);
+
+    /**
+     * @file track-button.js
+     */
+
+    /**
+     * The base class for buttons that toggle specific  track types (e.g. subtitles).
+     *
+     * @extends MenuButton
+     */
+    class TrackButton extends MenuButton {
+        /**
+         * Creates an instance of this class.
+         *
+         * @param { import('./player').default } player
+         *        The `Player` that this class should be attached to.
+         *
+         * @param {Object} [options]
+         *        The key/value store of player options.
+         */
+        constructor(player, options) {
+            const tracks = options.tracks;
+            super(player, options);
+            if (this.items.length <= 1) {
+                this.hide();
+            }
+            if (!tracks) {
+                return;
+            }
+            const updateHandler = bind_(this, this.update);
+            tracks.addEventListener('removetrack', updateHandler);
+            tracks.addEventListener('addtrack', updateHandler);
+            tracks.addEventListener('labelchange', updateHandler);
+            this.player_.on('ready', updateHandler);
+            this.player_.on('dispose', function () {
+                tracks.removeEventListener('removetrack', updateHandler);
+                tracks.removeEventListener('addtrack', updateHandler);
+                tracks.removeEventListener('labelchange', updateHandler);
+            });
+        }
+    }
+    Component$1.registerComponent('TrackButton', TrackButton);
+
+    /**
+     * @file menu-keys.js
+     */
+
+    /**
+     * All keys used for operation of a menu (`MenuButton`, `Menu`, and `MenuItem`)
+     * Note that 'Enter' and 'Space' are not included here (otherwise they would
+     * prevent the `MenuButton` and `MenuItem` from being keyboard-clickable)
+     *
+     * @typedef MenuKeys
+     * @array
+     */
+    const MenuKeys = ['Tab', 'Esc', 'Up', 'Down', 'Right', 'Left'];
+
+    /**
+     * @file menu-item.js
+     */
+
+    /**
+     * The component for a menu item. `<li>`
+     *
+     * @extends ClickableComponent
+     */
+    class MenuItem extends ClickableComponent {
+        /**
+         * Creates an instance of the this class.
+         *
+         * @param { import('../player').default } player
+         *        The `Player` that this class should be attached to.
+         *
+         * @param {Object} [options={}]
+         *        The key/value store of player options.
+         *
+         */
+        constructor(player, options) {
+            super(player, options);
+            this.selectable = options.selectable;
+            this.isSelected_ = options.selected || false;
+            this.multiSelectable = options.multiSelectable;
+            this.selected(this.isSelected_);
+            if (this.selectable) {
+                if (this.multiSelectable) {
+                    this.el_.setAttribute('role', 'menuitemcheckbox');
+                } else {
+                    this.el_.setAttribute('role', 'menuitemradio');
+                }
+            } else {
+                this.el_.setAttribute('role', 'menuitem');
+            }
+        }
+
+        /**
+         * Create the `MenuItem's DOM element
+         *
+         * @param {string} [type=li]
+         *        Element's node type, not actually used, always set to `li`.
+         *
+         * @param {Object} [props={}]
+         *        An object of properties that should be set on the element
+         *
+         * @param {Object} [attrs={}]
+         *        An object of attributes that should be set on the element
+         *
+         * @return {Element}
+         *         The element that gets created.
+         */
+        createEl(type, props, attrs) {
+            // The control is textual, not just an icon
+            this.nonIconControl = true;
+            const el = super.createEl('li', Object.assign({
+                className: 'vjs-menu-item',
+                tabIndex: -1
+            }, props), attrs);
+
+            // swap icon with menu item text.
+            el.replaceChild(createEl('span', {
+                className: 'vjs-menu-item-text',
+                textContent: this.localize(this.options_.label)
+            }), el.querySelector('.vjs-icon-placeholder'));
+            return el;
+        }
+
+        /**
+         * Ignore keys which are used by the menu, but pass any other ones up. See
+         * {@link ClickableComponent#handleKeyDown} for instances where this is called.
+         *
+         * @param {Event} event
+         *        The `keydown` event that caused this function to be called.
+         *
+         * @listens keydown
+         */
+        handleKeyDown(event) {
+            if (!MenuKeys.some(key => keycode.isEventKey(event, key))) {
+                // Pass keydown handling up for unused keys
+                super.handleKeyDown(event);
+            }
+        }
+
+        /**
+         * Any click on a `MenuItem` puts it into the selected state.
+         * See {@link ClickableComponent#handleClick} for instances where this is called.
+         *
+         * @param {Event} event
+         *        The `keydown`, `tap`, or `click` event that caused this function to be
+         *        called.
+         *
+         * @listens tap
+         * @listens click
+         */
+        handleClick(event) {
+            this.selected(true);
+        }
+
+        /**
+         * Set the state for this menu item as selected or not.
+         *
+         * @param {boolean} selected
+         *        if the menu item is selected or not
+         */
+        selected(selected) {
+            if (this.selectable) {
+                if (selected) {
+                    this.addClass('vjs-selected');
+                    this.el_.setAttribute('aria-checked', 'true');
+                    // aria-checked isn't fully supported by browsers/screen readers,
+                    // so indicate selected state to screen reader in the control text.
+                    this.controlText(', selected');
+                    this.isSelected_ = true;
+                } else {
+                    this.removeClass('vjs-selected');
+                    this.el_.setAttribute('aria-checked', 'false');
+                    // Indicate un-selected state to screen reader
+                    this.controlText('');
+                    this.isSelected_ = false;
+                }
+            }
+        }
+    }
+    Component$1.registerComponent('MenuItem', MenuItem);
+
+    /**
+     * @file text-track-menu-item.js
+     */
+
+    /**
+     * The specific menu item type for selecting a language within a text track kind
+     *
+     * @extends MenuItem
+     */
+    class TextTrackMenuItem extends MenuItem {
+        /**
+         * Creates an instance of this class.
+         *
+         * @param { import('../../player').default } player
+         *        The `Player` that this class should be attached to.
+         *
+         * @param {Object} [options]
+         *        The key/value store of player options.
+         */
+        constructor(player, options) {
+            const track = options.track;
+            const tracks = player.textTracks();
+
+            // Modify options for parent MenuItem class's init.
+            options.label = track.label || track.language || 'Unknown';
+            options.selected = track.mode === 'showing';
+            super(player, options);
+            this.track = track;
+            // Determine the relevant kind(s) of tracks for this component and filter
+            // out empty kinds.
+            this.kinds = (options.kinds || [options.kind || this.track.kind]).filter(Boolean);
+            const changeHandler = (...args) => {
+                this.handleTracksChange.apply(this, args);
+            };
+            const selectedLanguageChangeHandler = (...args) => {
+                this.handleSelectedLanguageChange.apply(this, args);
+            };
+            player.on(['loadstart', 'texttrackchange'], changeHandler);
+            tracks.addEventListener('change', changeHandler);
+            tracks.addEventListener('selectedlanguagechange', selectedLanguageChangeHandler);
+            this.on('dispose', function () {
+                player.off(['loadstart', 'texttrackchange'], changeHandler);
+                tracks.removeEventListener('change', changeHandler);
+                tracks.removeEventListener('selectedlanguagechange', selectedLanguageChangeHandler);
+            });
+
+            // iOS7 doesn't dispatch change events to TextTrackLists when an
+            // associated track's mode changes. Without something like
+            // Object.observe() (also not present on iOS7), it's not
+            // possible to detect changes to the mode attribute and polyfill
+            // the change event. As a poor substitute, we manually dispatch
+            // change events whenever the controls modify the mode.
+            if (tracks.onchange === undefined) {
+                let event;
+                this.on(['tap', 'click'], function () {
+                    if (typeof window.Event !== 'object') {
+                        // Android 2.3 throws an Illegal Constructor error for window.Event
+                        try {
+                            event = new window.Event('change');
+                        } catch (err) {
+                            // continue regardless of error
+                        }
+                    }
+                    if (!event) {
+                        event = document.createEvent('Event');
+                        event.initEvent('change', true, true);
+                    }
+                    tracks.dispatchEvent(event);
+                });
+            }
+
+            // set the default state based on current tracks
+            this.handleTracksChange();
+        }
+
+        /**
+         * This gets called when an `TextTrackMenuItem` is "clicked". See
+         * {@link ClickableComponent} for more detailed information on what a click can be.
+         *
+         * @param {Event} event
+         *        The `keydown`, `tap`, or `click` event that caused this function to be
+         *        called.
+         *
+         * @listens tap
+         * @listens click
+         */
+        handleClick(event) {
+            const referenceTrack = this.track;
+            const tracks = this.player_.textTracks();
+            super.handleClick(event);
+            if (!tracks) {
+                return;
+            }
+            for (let i = 0; i < tracks.length; i++) {
+                const track = tracks[i];
+
+                // If the track from the text tracks list is not of the right kind,
+                // skip it. We do not want to affect tracks of incompatible kind(s).
+                if (this.kinds.indexOf(track.kind) === -1) {
+                    continue;
+                }
+
+                // If this text track is the component's track and it is not showing,
+                // set it to showing.
+                if (track === referenceTrack) {
+                    if (track.mode !== 'showing') {
+                        track.mode = 'showing';
+                    }
+
+                    // If this text track is not the component's track and it is not
+                    // disabled, set it to disabled.
+                } else if (track.mode !== 'disabled') {
+                    track.mode = 'disabled';
+                }
+            }
+        }
+
+        /**
+         * Handle text track list change
+         *
+         * @param {Event} event
+         *        The `change` event that caused this function to be called.
+         *
+         * @listens TextTrackList#change
+         */
+        handleTracksChange(event) {
+            const shouldBeSelected = this.track.mode === 'showing';
+
+            // Prevent redundant selected() calls because they may cause
+            // screen readers to read the appended control text unnecessarily
+            if (shouldBeSelected !== this.isSelected_) {
+                this.selected(shouldBeSelected);
+            }
+        }
+        handleSelectedLanguageChange(event) {
+            if (this.track.mode === 'showing') {
+                const selectedLanguage = this.player_.cache_.selectedLanguage;
+
+                // Don't replace the kind of track across the same language
+                if (selectedLanguage && selectedLanguage.enabled && selectedLanguage.language === this.track.language && selectedLanguage.kind !== this.track.kind) {
+                    return;
+                }
+                this.player_.cache_.selectedLanguage = {
+                    enabled: true,
+                    language: this.track.language,
+                    kind: this.track.kind
+                };
+            }
+        }
+        dispose() {
+            // remove reference to track object on dispose
+            this.track = null;
+            super.dispose();
+        }
+    }
+    Component$1.registerComponent('TextTrackMenuItem', TextTrackMenuItem);
+
+    /**
+     * @file off-text-track-menu-item.js
+     */
+
+    /**
+     * A special menu item for turning of a specific type of text track
+     *
+     * @extends TextTrackMenuItem
+     */
+    class OffTextTrackMenuItem extends TextTrackMenuItem {
+        /**
+         * Creates an instance of this class.
+         *
+         * @param { import('../../player').default } player
+         *        The `Player` that this class should be attached to.
+         *
+         * @param {Object} [options]
+         *        The key/value store of player options.
+         */
+        constructor(player, options) {
+            // Create pseudo track info
+            // Requires options['kind']
+            options.track = {
+                player,
+                // it is no longer necessary to store `kind` or `kinds` on the track itself
+                // since they are now stored in the `kinds` property of all instances of
+                // TextTrackMenuItem, but this will remain for backwards compatibility
+                kind: options.kind,
+                kinds: options.kinds,
+                default: false,
+                mode: 'disabled'
+            };
+            if (!options.kinds) {
+                options.kinds = [options.kind];
+            }
+            if (options.label) {
+                options.track.label = options.label;
+            } else {
+                options.track.label = options.kinds.join(' and ') + ' off';
+            }
+
+            // MenuItem is selectable
+            options.selectable = true;
+            // MenuItem is NOT multiSelectable (i.e. only one can be marked "selected" at a time)
+            options.multiSelectable = false;
+            super(player, options);
+        }
+
+        /**
+         * Handle text track change
+         *
+         * @param {Event} event
+         *        The event that caused this function to run
+         */
+        handleTracksChange(event) {
+            const tracks = this.player().textTracks();
+            let shouldBeSelected = true;
+            for (let i = 0, l = tracks.length; i < l; i++) {
+                const track = tracks[i];
+                if (this.options_.kinds.indexOf(track.kind) > -1 && track.mode === 'showing') {
+                    shouldBeSelected = false;
+                    break;
+                }
+            }
+
+            // Prevent redundant selected() calls because they may cause
+            // screen readers to read the appended control text unnecessarily
+            if (shouldBeSelected !== this.isSelected_) {
+                this.selected(shouldBeSelected);
+            }
+        }
+        handleSelectedLanguageChange(event) {
+            const tracks = this.player().textTracks();
+            let allHidden = true;
+            for (let i = 0, l = tracks.length; i < l; i++) {
+                const track = tracks[i];
+                if (['captions', 'descriptions', 'subtitles'].indexOf(track.kind) > -1 && track.mode === 'showing') {
+                    allHidden = false;
+                    break;
+                }
+            }
+            if (allHidden) {
+                this.player_.cache_.selectedLanguage = {
+                    enabled: false
+                };
+            }
+        }
+
+        /**
+         * Update control text and label on languagechange
+         */
+        handleLanguagechange() {
+            this.$('.vjs-menu-item-text').textContent = this.player_.localize(this.options_.label);
+            super.handleLanguagechange();
+        }
+    }
+    Component$1.registerComponent('OffTextTrackMenuItem', OffTextTrackMenuItem);
+
+    /**
+     * @file text-track-button.js
+     */
+
+    /**
+     * The base class for buttons that toggle specific text track types (e.g. subtitles)
+     *
+     * @extends MenuButton
+     */
+    class TextTrackButton extends TrackButton {
+        /**
+         * Creates an instance of this class.
+         *
+         * @param { import('../../player').default } player
+         *        The `Player` that this class should be attached to.
+         *
+         * @param {Object} [options={}]
+         *        The key/value store of player options.
+         */
+        constructor(player, options = {}) {
+            options.tracks = player.textTracks();
+            super(player, options);
+        }
+
+        /**
+         * Create a menu item for each text track
+         *
+         * @param {TextTrackMenuItem[]} [items=[]]
+         *        Existing array of items to use during creation
+         *
+         * @return {TextTrackMenuItem[]}
+         *         Array of menu items that were created
+         */
+        createItems(items = [], TrackMenuItem = TextTrackMenuItem) {
+            // Label is an override for the [track] off label
+            // USed to localise captions/subtitles
+            let label;
+            if (this.label_) {
+                label = `${this.label_} off`;
+            }
+            // Add an OFF menu item to turn all tracks off
+            items.push(new OffTextTrackMenuItem(this.player_, {
+                kinds: this.kinds_,
+                kind: this.kind_,
+                label
+            }));
+            this.hideThreshold_ += 1;
+            const tracks = this.player_.textTracks();
+            if (!Array.isArray(this.kinds_)) {
+                this.kinds_ = [this.kind_];
+            }
+            for (let i = 0; i < tracks.length; i++) {
+                const track = tracks[i];
+
+                // only add tracks that are of an appropriate kind and have a label
+                if (this.kinds_.indexOf(track.kind) > -1) {
+                    const item = new TrackMenuItem(this.player_, {
+                        track,
+                        kinds: this.kinds_,
+                        kind: this.kind_,
+                        // MenuItem is selectable
+                        selectable: true,
+                        // MenuItem is NOT multiSelectable (i.e. only one can be marked "selected" at a time)
+                        multiSelectable: false
+                    });
+                    item.addClass(`vjs-${track.kind}-menu-item`);
+                    items.push(item);
+                }
+            }
+            return items;
+        }
+    }
+    Component$1.registerComponent('TextTrackButton', TextTrackButton);
+
+    /**
+     * @file chapters-track-menu-item.js
+     */
+
+    /**
+     * The chapter track menu item
+     *
+     * @extends MenuItem
+     */
+    class ChaptersTrackMenuItem extends MenuItem {
+        /**
+         * Creates an instance of this class.
+         *
+         * @param { import('../../player').default } player
+         *        The `Player` that this class should be attached to.
+         *
+         * @param {Object} [options]
+         *        The key/value store of player options.
+         */
+        constructor(player, options) {
+            const track = options.track;
+            const cue = options.cue;
+            const currentTime = player.currentTime();
+
+            // Modify options for parent MenuItem class's init.
+            options.selectable = true;
+            options.multiSelectable = false;
+            options.label = cue.text;
+            options.selected = cue.startTime <= currentTime && currentTime < cue.endTime;
+            super(player, options);
+            this.track = track;
+            this.cue = cue;
+        }
+
+        /**
+         * This gets called when an `ChaptersTrackMenuItem` is "clicked". See
+         * {@link ClickableComponent} for more detailed information on what a click can be.
+         *
+         * @param {Event} [event]
+         *        The `keydown`, `tap`, or `click` event that caused this function to be
+         *        called.
+         *
+         * @listens tap
+         * @listens click
+         */
+        handleClick(event) {
+            super.handleClick();
+            this.player_.currentTime(this.cue.startTime);
+        }
+    }
+    Component$1.registerComponent('ChaptersTrackMenuItem', ChaptersTrackMenuItem);
+
+    /**
+     * @file chapters-button.js
+     */
+
+    /**
+     * The button component for toggling and selecting chapters
+     * Chapters act much differently than other text tracks
+     * Cues are navigation vs. other tracks of alternative languages
+     *
+     * @extends TextTrackButton
+     */
+    class ChaptersButton extends TextTrackButton {
+        /**
+         * Creates an instance of this class.
+         *
+         * @param { import('../../player').default } player
+         *        The `Player` that this class should be attached to.
+         *
+         * @param {Object} [options]
+         *        The key/value store of player options.
+         *
+         * @param {Function} [ready]
+         *        The function to call when this function is ready.
+         */
+        constructor(player, options, ready) {
+            super(player, options, ready);
+            this.selectCurrentItem_ = () => {
+                this.items.forEach(item => {
+                    item.selected(this.track_.activeCues[0] === item.cue);
+                });
+            };
+        }
+
+        /**
+         * Builds the default DOM `className`.
+         *
+         * @return {string}
+         *         The DOM `className` for this object.
+         */
+        buildCSSClass() {
+            return `vjs-chapters-button ${super.buildCSSClass()}`;
+        }
+        buildWrapperCSSClass() {
+            return `vjs-chapters-button ${super.buildWrapperCSSClass()}`;
+        }
+
+        /**
+         * Update the menu based on the current state of its items.
+         *
+         * @param {Event} [event]
+         *        An event that triggered this function to run.
+         *
+         * @listens TextTrackList#addtrack
+         * @listens TextTrackList#removetrack
+         * @listens TextTrackList#change
+         */
+        update(event) {
+            if (event && event.track && event.track.kind !== 'chapters') {
+                return;
+            }
+            const track = this.findChaptersTrack();
+            if (track !== this.track_) {
+                this.setTrack(track);
+                super.update();
+            } else if (!this.items || track && track.cues && track.cues.length !== this.items.length) {
+                // Update the menu initially or if the number of cues has changed since set
+                super.update();
+            }
+        }
+
+        /**
+         * Set the currently selected track for the chapters button.
+         *
+         * @param {TextTrack} track
+         *        The new track to select. Nothing will change if this is the currently selected
+         *        track.
+         */
+        setTrack(track) {
+            if (this.track_ === track) {
+                return;
+            }
+            if (!this.updateHandler_) {
+                this.updateHandler_ = this.update.bind(this);
+            }
+
+            // here this.track_ refers to the old track instance
+            if (this.track_) {
+                const remoteTextTrackEl = this.player_.remoteTextTrackEls().getTrackElementByTrack_(this.track_);
+                if (remoteTextTrackEl) {
+                    remoteTextTrackEl.removeEventListener('load', this.updateHandler_);
+                }
+                this.track_.removeEventListener('cuechange', this.selectCurrentItem_);
+                this.track_ = null;
+            }
+            this.track_ = track;
+
+            // here this.track_ refers to the new track instance
+            if (this.track_) {
+                this.track_.mode = 'hidden';
+                const remoteTextTrackEl = this.player_.remoteTextTrackEls().getTrackElementByTrack_(this.track_);
+                if (remoteTextTrackEl) {
+                    remoteTextTrackEl.addEventListener('load', this.updateHandler_);
+                }
+                this.track_.addEventListener('cuechange', this.selectCurrentItem_);
+            }
+        }
+
+        /**
+         * Find the track object that is currently in use by this ChaptersButton
+         *
+         * @return {TextTrack|undefined}
+         *         The current track or undefined if none was found.
+         */
+        findChaptersTrack() {
+            const tracks = this.player_.textTracks() || [];
+            for (let i = tracks.length - 1; i >= 0; i--) {
+                // We will always choose the last track as our chaptersTrack
+                const track = tracks[i];
+                if (track.kind === this.kind_) {
+                    return track;
+                }
+            }
+        }
+
+        /**
+         * Get the caption for the ChaptersButton based on the track label. This will also
+         * use the current tracks localized kind as a fallback if a label does not exist.
+         *
+         * @return {string}
+         *         The tracks current label or the localized track kind.
+         */
+        getMenuCaption() {
+            if (this.track_ && this.track_.label) {
+                return this.track_.label;
+            }
+            return this.localize(toTitleCase$1(this.kind_));
+        }
+
+        /**
+         * Create menu from chapter track
+         *
+         * @return { import('../../menu/menu').default }
+         *         New menu for the chapter buttons
+         */
+        createMenu() {
+            this.options_.title = this.getMenuCaption();
+            return super.createMenu();
+        }
+
+        /**
+         * Create a menu item for each text track
+         *
+         * @return  { import('./text-track-menu-item').default[] }
+         *         Array of menu items
+         */
+        createItems() {
+            const items = [];
+            if (!this.track_) {
+                return items;
+            }
+            const cues = this.track_.cues;
+            if (!cues) {
+                return items;
+            }
+            for (let i = 0, l = cues.length; i < l; i++) {
+                const cue = cues[i];
+                const mi = new ChaptersTrackMenuItem(this.player_, {
+                    track: this.track_,
+                    cue
+                });
+                items.push(mi);
+            }
+            return items;
+        }
+    }
+
+    /**
+     * `kind` of TextTrack to look for to associate it with this menu.
+     *
+     * @type {string}
+     * @private
+     */
+    ChaptersButton.prototype.kind_ = 'chapters';
+
+    /**
+     * The text that should display over the `ChaptersButton`s controls. Added for localization.
+     *
+     * @type {string}
+     * @protected
+     */
+    ChaptersButton.prototype.controlText_ = 'Chapters';
+    Component$1.registerComponent('ChaptersButton', ChaptersButton);
+
+    /**
+     * @file descriptions-button.js
+     */
+
+    /**
+     * The button component for toggling and selecting descriptions
+     *
+     * @extends TextTrackButton
+     */
+    class DescriptionsButton extends TextTrackButton {
+        /**
+         * Creates an instance of this class.
+         *
+         * @param { import('../../player').default } player
+         *        The `Player` that this class should be attached to.
+         *
+         * @param {Object} [options]
+         *        The key/value store of player options.
+         *
+         * @param {Function} [ready]
+         *        The function to call when this component is ready.
+         */
+        constructor(player, options, ready) {
+            super(player, options, ready);
+            const tracks = player.textTracks();
+            const changeHandler = bind_(this, this.handleTracksChange);
+            tracks.addEventListener('change', changeHandler);
+            this.on('dispose', function () {
+                tracks.removeEventListener('change', changeHandler);
+            });
+        }
+
+        /**
+         * Handle text track change
+         *
+         * @param {Event} event
+         *        The event that caused this function to run
+         *
+         * @listens TextTrackList#change
+         */
+        handleTracksChange(event) {
+            const tracks = this.player().textTracks();
+            let disabled = false;
+
+            // Check whether a track of a different kind is showing
+            for (let i = 0, l = tracks.length; i < l; i++) {
+                const track = tracks[i];
+                if (track.kind !== this.kind_ && track.mode === 'showing') {
+                    disabled = true;
+                    break;
+                }
+            }
+
+            // If another track is showing, disable this menu button
+            if (disabled) {
+                this.disable();
+            } else {
+                this.enable();
+            }
+        }
+
+        /**
+         * Builds the default DOM `className`.
+         *
+         * @return {string}
+         *         The DOM `className` for this object.
+         */
+        buildCSSClass() {
+            return `vjs-descriptions-button ${super.buildCSSClass()}`;
+        }
+        buildWrapperCSSClass() {
+            return `vjs-descriptions-button ${super.buildWrapperCSSClass()}`;
+        }
+    }
+
+    /**
+     * `kind` of TextTrack to look for to associate it with this menu.
+     *
+     * @type {string}
+     * @private
+     */
+    DescriptionsButton.prototype.kind_ = 'descriptions';
+
+    /**
+     * The text that should display over the `DescriptionsButton`s controls. Added for localization.
+     *
+     * @type {string}
+     * @protected
+     */
+    DescriptionsButton.prototype.controlText_ = 'Descriptions';
+    Component$1.registerComponent('DescriptionsButton', DescriptionsButton);
+
+    /**
+     * @file subtitles-button.js
+     */
+
+    /**
+     * The button component for toggling and selecting subtitles
+     *
+     * @extends TextTrackButton
+     */
+    class SubtitlesButton extends TextTrackButton {
+        /**
+         * Creates an instance of this class.
+         *
+         * @param { import('../../player').default } player
+         *        The `Player` that this class should be attached to.
+         *
+         * @param {Object} [options]
+         *        The key/value store of player options.
+         *
+         * @param {Function} [ready]
+         *        The function to call when this component is ready.
+         */
+        constructor(player, options, ready) {
+            super(player, options, ready);
+        }
+
+        /**
+         * Builds the default DOM `className`.
+         *
+         * @return {string}
+         *         The DOM `className` for this object.
+         */
+        buildCSSClass() {
+            return `vjs-subtitles-button ${super.buildCSSClass()}`;
+        }
+        buildWrapperCSSClass() {
+            return `vjs-subtitles-button ${super.buildWrapperCSSClass()}`;
+        }
+    }
+
+    /**
+     * `kind` of TextTrack to look for to associate it with this menu.
+     *
+     * @type {string}
+     * @private
+     */
+    SubtitlesButton.prototype.kind_ = 'subtitles';
+
+    /**
+     * The text that should display over the `SubtitlesButton`s controls. Added for localization.
+     *
+     * @type {string}
+     * @protected
+     */
+    SubtitlesButton.prototype.controlText_ = 'Subtitles';
+    Component$1.registerComponent('SubtitlesButton', SubtitlesButton);
+
+    /**
+     * @file caption-settings-menu-item.js
+     */
+
+    /**
+     * The menu item for caption track settings menu
+     *
+     * @extends TextTrackMenuItem
+     */
+    class CaptionSettingsMenuItem extends TextTrackMenuItem {
+        /**
+         * Creates an instance of this class.
+         *
+         * @param { import('../../player').default } player
+         *        The `Player` that this class should be attached to.
+         *
+         * @param {Object} [options]
+         *        The key/value store of player options.
+         */
+        constructor(player, options) {
+            options.track = {
+                player,
+                kind: options.kind,
+                label: options.kind + ' settings',
+                selectable: false,
+                default: false,
+                mode: 'disabled'
+            };
+
+            // CaptionSettingsMenuItem has no concept of 'selected'
+            options.selectable = false;
+            options.name = 'CaptionSettingsMenuItem';
+            super(player, options);
+            this.addClass('vjs-texttrack-settings');
+            this.controlText(', opens ' + options.kind + ' settings dialog');
+        }
+
+        /**
+         * This gets called when an `CaptionSettingsMenuItem` is "clicked". See
+         * {@link ClickableComponent} for more detailed information on what a click can be.
+         *
+         * @param {Event} [event]
+         *        The `keydown`, `tap`, or `click` event that caused this function to be
+         *        called.
+         *
+         * @listens tap
+         * @listens click
+         */
+        handleClick(event) {
+            this.player().getChild('textTrackSettings').open();
+        }
+
+        /**
+         * Update control text and label on languagechange
+         */
+        handleLanguagechange() {
+            this.$('.vjs-menu-item-text').textContent = this.player_.localize(this.options_.kind + ' settings');
+            super.handleLanguagechange();
+        }
+    }
+    Component$1.registerComponent('CaptionSettingsMenuItem', CaptionSettingsMenuItem);
+
+    /**
+     * @file captions-button.js
+     */
+
+    /**
+     * The button component for toggling and selecting captions
+     *
+     * @extends TextTrackButton
+     */
+    class CaptionsButton extends TextTrackButton {
+        /**
+         * Creates an instance of this class.
+         *
+         * @param { import('../../player').default } player
+         *        The `Player` that this class should be attached to.
+         *
+         * @param {Object} [options]
+         *        The key/value store of player options.
+         *
+         * @param {Function} [ready]
+         *        The function to call when this component is ready.
+         */
+        constructor(player, options, ready) {
+            super(player, options, ready);
+        }
+
+        /**
+         * Builds the default DOM `className`.
+         *
+         * @return {string}
+         *         The DOM `className` for this object.
+         */
+        buildCSSClass() {
+            return `vjs-captions-button ${super.buildCSSClass()}`;
+        }
+        buildWrapperCSSClass() {
+            return `vjs-captions-button ${super.buildWrapperCSSClass()}`;
+        }
+
+        /**
+         * Create caption menu items
+         *
+         * @return {CaptionSettingsMenuItem[]}
+         *         The array of current menu items.
+         */
+        createItems() {
+            const items = [];
+            if (!(this.player().tech_ && this.player().tech_.featuresNativeTextTracks) && this.player().getChild('textTrackSettings')) {
+                items.push(new CaptionSettingsMenuItem(this.player_, {
+                    kind: this.kind_
+                }));
+                this.hideThreshold_ += 1;
+            }
+            return super.createItems(items);
+        }
+    }
+
+    /**
+     * `kind` of TextTrack to look for to associate it with this menu.
+     *
+     * @type {string}
+     * @private
+     */
+    CaptionsButton.prototype.kind_ = 'captions';
+
+    /**
+     * The text that should display over the `CaptionsButton`s controls. Added for localization.
+     *
+     * @type {string}
+     * @protected
+     */
+    CaptionsButton.prototype.controlText_ = 'Captions';
+    Component$1.registerComponent('CaptionsButton', CaptionsButton);
+
+    /**
+     * @file subs-caps-menu-item.js
+     */
+
+    /**
+     * SubsCapsMenuItem has an [cc] icon to distinguish captions from subtitles
+     * in the SubsCapsMenu.
+     *
+     * @extends TextTrackMenuItem
+     */
+    class SubsCapsMenuItem extends TextTrackMenuItem {
+        createEl(type, props, attrs) {
+            const el = super.createEl(type, props, attrs);
+            const parentSpan = el.querySelector('.vjs-menu-item-text');
+            if (this.options_.track.kind === 'captions') {
+                parentSpan.appendChild(createEl('span', {
+                    className: 'vjs-icon-placeholder'
+                }, {
+                    'aria-hidden': true
+                }));
+                parentSpan.appendChild(createEl('span', {
+                    className: 'vjs-control-text',
+                    // space added as the text will visually flow with the
+                    // label
+                    textContent: ` ${this.localize('Captions')}`
+                }));
+            }
+            return el;
+        }
+    }
+    Component$1.registerComponent('SubsCapsMenuItem', SubsCapsMenuItem);
+
+    /**
+     * @file sub-caps-button.js
+     */
+
+    /**
+     * The button component for toggling and selecting captions and/or subtitles
+     *
+     * @extends TextTrackButton
+     */
+    class SubsCapsButton extends TextTrackButton {
+        /**
+         * Creates an instance of this class.
+         *
+         * @param { import('../../player').default } player
+         *        The `Player` that this class should be attached to.
+         *
+         * @param {Object} [options]
+         *        The key/value store of player options.
+         *
+         * @param {Function} [ready]
+         *        The function to call when this component is ready.
+         */
+        constructor(player, options = {}) {
+            super(player, options);
+
+            // Although North America uses "captions" in most cases for
+            // "captions and subtitles" other locales use "subtitles"
+            this.label_ = 'subtitles';
+            if (['en', 'en-us', 'en-ca', 'fr-ca'].indexOf(this.player_.language_) > -1) {
+                this.label_ = 'captions';
+            }
+            this.menuButton_.controlText(toTitleCase$1(this.label_));
+        }
+
+        /**
+         * Builds the default DOM `className`.
+         *
+         * @return {string}
+         *         The DOM `className` for this object.
+         */
+        buildCSSClass() {
+            return `vjs-subs-caps-button ${super.buildCSSClass()}`;
+        }
+        buildWrapperCSSClass() {
+            return `vjs-subs-caps-button ${super.buildWrapperCSSClass()}`;
+        }
+
+        /**
+         * Create caption/subtitles menu items
+         *
+         * @return {CaptionSettingsMenuItem[]}
+         *         The array of current menu items.
+         */
+        createItems() {
+            let items = [];
+            if (!(this.player().tech_ && this.player().tech_.featuresNativeTextTracks) && this.player().getChild('textTrackSettings')) {
+                items.push(new CaptionSettingsMenuItem(this.player_, {
+                    kind: this.label_
+                }));
+                this.hideThreshold_ += 1;
+            }
+            items = super.createItems(items, SubsCapsMenuItem);
+            return items;
+        }
+    }
+
+    /**
+     * `kind`s of TextTrack to look for to associate it with this menu.
+     *
+     * @type {array}
+     * @private
+     */
+    SubsCapsButton.prototype.kinds_ = ['captions', 'subtitles'];
+
+    /**
+     * The text that should display over the `SubsCapsButton`s controls.
+     *
+     *
+     * @type {string}
+     * @protected
+     */
+    SubsCapsButton.prototype.controlText_ = 'Subtitles';
+    Component$1.registerComponent('SubsCapsButton', SubsCapsButton);
+
+    /**
+     * @file audio-track-menu-item.js
+     */
+
+    /**
+     * An {@link AudioTrack} {@link MenuItem}
+     *
+     * @extends MenuItem
+     */
+    class AudioTrackMenuItem extends MenuItem {
+        /**
+         * Creates an instance of this class.
+         *
+         * @param { import('../../player').default } player
+         *        The `Player` that this class should be attached to.
+         *
+         * @param {Object} [options]
+         *        The key/value store of player options.
+         */
+        constructor(player, options) {
+            const track = options.track;
+            const tracks = player.audioTracks();
+
+            // Modify options for parent MenuItem class's init.
+            options.label = track.label || track.language || 'Unknown';
+            options.selected = track.enabled;
+            super(player, options);
+            this.track = track;
+            this.addClass(`vjs-${track.kind}-menu-item`);
+            const changeHandler = (...args) => {
+                this.handleTracksChange.apply(this, args);
+            };
+            tracks.addEventListener('change', changeHandler);
+            this.on('dispose', () => {
+                tracks.removeEventListener('change', changeHandler);
+            });
+        }
+        createEl(type, props, attrs) {
+            const el = super.createEl(type, props, attrs);
+            const parentSpan = el.querySelector('.vjs-menu-item-text');
+            if (this.options_.track.kind === 'main-desc') {
+                parentSpan.appendChild(createEl('span', {
+                    className: 'vjs-icon-placeholder'
+                }, {
+                    'aria-hidden': true
+                }));
+                parentSpan.appendChild(createEl('span', {
+                    className: 'vjs-control-text',
+                    textContent: ' ' + this.localize('Descriptions')
+                }));
+            }
+            return el;
+        }
+
+        /**
+         * This gets called when an `AudioTrackMenuItem is "clicked". See {@link ClickableComponent}
+         * for more detailed information on what a click can be.
+         *
+         * @param {Event} [event]
+         *        The `keydown`, `tap`, or `click` event that caused this function to be
+         *        called.
+         *
+         * @listens tap
+         * @listens click
+         */
+        handleClick(event) {
+            super.handleClick(event);
+
+            // the audio track list will automatically toggle other tracks
+            // off for us.
+            this.track.enabled = true;
+
+            // when native audio tracks are used, we want to make sure that other tracks are turned off
+            if (this.player_.tech_.featuresNativeAudioTracks) {
+                const tracks = this.player_.audioTracks();
+                for (let i = 0; i < tracks.length; i++) {
+                    const track = tracks[i];
+
+                    // skip the current track since we enabled it above
+                    if (track === this.track) {
+                        continue;
+                    }
+                    track.enabled = track === this.track;
+                }
+            }
+        }
+
+        /**
+         * Handle any {@link AudioTrack} change.
+         *
+         * @param {Event} [event]
+         *        The {@link AudioTrackList#change} event that caused this to run.
+         *
+         * @listens AudioTrackList#change
+         */
+        handleTracksChange(event) {
+            this.selected(this.track.enabled);
+        }
+    }
+    Component$1.registerComponent('AudioTrackMenuItem', AudioTrackMenuItem);
+
+    /**
+     * @file audio-track-button.js
+     */
+
+    /**
+     * The base class for buttons that toggle specific {@link AudioTrack} types.
+     *
+     * @extends TrackButton
+     */
+    class AudioTrackButton extends TrackButton {
+        /**
+         * Creates an instance of this class.
+         *
+         * @param {Player} player
+         *        The `Player` that this class should be attached to.
+         *
+         * @param {Object} [options={}]
+         *        The key/value store of player options.
+         */
+        constructor(player, options = {}) {
+            options.tracks = player.audioTracks();
+            super(player, options);
+        }
+
+        /**
+         * Builds the default DOM `className`.
+         *
+         * @return {string}
+         *         The DOM `className` for this object.
+         */
+        buildCSSClass() {
+            return `vjs-audio-button ${super.buildCSSClass()}`;
+        }
+        buildWrapperCSSClass() {
+            return `vjs-audio-button ${super.buildWrapperCSSClass()}`;
+        }
+
+        /**
+         * Create a menu item for each audio track
+         *
+         * @param {AudioTrackMenuItem[]} [items=[]]
+         *        An array of existing menu items to use.
+         *
+         * @return {AudioTrackMenuItem[]}
+         *         An array of menu items
+         */
+        createItems(items = []) {
+            // if there's only one audio track, there no point in showing it
+            this.hideThreshold_ = 1;
+            const tracks = this.player_.audioTracks();
+            for (let i = 0; i < tracks.length; i++) {
+                const track = tracks[i];
+                items.push(new AudioTrackMenuItem(this.player_, {
+                    track,
+                    // MenuItem is selectable
+                    selectable: true,
+                    // MenuItem is NOT multiSelectable (i.e. only one can be marked "selected" at a time)
+                    multiSelectable: false
+                }));
+            }
+            return items;
+        }
+    }
+
+    /**
+     * The text that should display over the `AudioTrackButton`s controls. Added for localization.
+     *
+     * @type {string}
+     * @protected
+     */
+    AudioTrackButton.prototype.controlText_ = 'Audio Track';
+    Component$1.registerComponent('AudioTrackButton', AudioTrackButton);
+
+    /**
+     * @file playback-rate-menu-item.js
+     */
+
+    /**
+     * The specific menu item type for selecting a playback rate.
+     *
+     * @extends MenuItem
+     */
+    class PlaybackRateMenuItem extends MenuItem {
+        /**
+         * Creates an instance of this class.
+         *
+         * @param { import('../../player').default } player
+         *        The `Player` that this class should be attached to.
+         *
+         * @param {Object} [options]
+         *        The key/value store of player options.
+         */
+        constructor(player, options) {
+            const label = options.rate;
+            const rate = parseFloat(label, 10);
+
+            // Modify options for parent MenuItem class's init.
+            options.label = label;
+            options.selected = rate === player.playbackRate();
+            options.selectable = true;
+            options.multiSelectable = false;
+            super(player, options);
+            this.label = label;
+            this.rate = rate;
+            this.on(player, 'ratechange', e => this.update(e));
+        }
+
+        /**
+         * This gets called when an `PlaybackRateMenuItem` is "clicked". See
+         * {@link ClickableComponent} for more detailed information on what a click can be.
+         *
+         * @param {Event} [event]
+         *        The `keydown`, `tap`, or `click` event that caused this function to be
+         *        called.
+         *
+         * @listens tap
+         * @listens click
+         */
+        handleClick(event) {
+            super.handleClick();
+            this.player().playbackRate(this.rate);
+        }
+
+        /**
+         * Update the PlaybackRateMenuItem when the playbackrate changes.
+         *
+         * @param {Event} [event]
+         *        The `ratechange` event that caused this function to run.
+         *
+         * @listens Player#ratechange
+         */
+        update(event) {
+            this.selected(this.player().playbackRate() === this.rate);
+        }
+    }
+
+    /**
+     * The text that should display over the `PlaybackRateMenuItem`s controls. Added for localization.
+     *
+     * @type {string}
+     * @private
+     */
+    PlaybackRateMenuItem.prototype.contentElType = 'button';
+    Component$1.registerComponent('PlaybackRateMenuItem', PlaybackRateMenuItem);
+
+    /**
+     * @file playback-rate-menu-button.js
+     */
+
+    /**
+     * The component for controlling the playback rate.
+     *
+     * @extends MenuButton
+     */
+    class PlaybackRateMenuButton extends MenuButton {
+        /**
+         * Creates an instance of this class.
+         *
+         * @param { import('../../player').default } player
+         *        The `Player` that this class should be attached to.
+         *
+         * @param {Object} [options]
+         *        The key/value store of player options.
+         */
+        constructor(player, options) {
+            super(player, options);
+            this.menuButton_.el_.setAttribute('aria-describedby', this.labelElId_);
+            this.updateVisibility();
+            this.updateLabel();
+            this.on(player, 'loadstart', e => this.updateVisibility(e));
+            this.on(player, 'ratechange', e => this.updateLabel(e));
+            this.on(player, 'playbackrateschange', e => this.handlePlaybackRateschange(e));
+        }
+
+        /**
+         * Create the `Component`'s DOM element
+         *
+         * @return {Element}
+         *         The element that was created.
+         */
+        createEl() {
+            const el = super.createEl();
+            this.labelElId_ = 'vjs-playback-rate-value-label-' + this.id_;
+            this.labelEl_ = createEl('div', {
+                className: 'vjs-playback-rate-value',
+                id: this.labelElId_,
+                textContent: '1x'
+            });
+            el.appendChild(this.labelEl_);
+            return el;
+        }
+        dispose() {
+            this.labelEl_ = null;
+            super.dispose();
+        }
+
+        /**
+         * Builds the default DOM `className`.
+         *
+         * @return {string}
+         *         The DOM `className` for this object.
+         */
+        buildCSSClass() {
+            return `vjs-playback-rate ${super.buildCSSClass()}`;
+        }
+        buildWrapperCSSClass() {
+            return `vjs-playback-rate ${super.buildWrapperCSSClass()}`;
+        }
+
+        /**
+         * Create the list of menu items. Specific to each subclass.
+         *
+         */
+        createItems() {
+            const rates = this.playbackRates();
+            const items = [];
+            for (let i = rates.length - 1; i >= 0; i--) {
+                items.push(new PlaybackRateMenuItem(this.player(), {
+                    rate: rates[i] + 'x'
+                }));
+            }
+            return items;
+        }
+
+        /**
+         * On playbackrateschange, update the menu to account for the new items.
+         *
+         * @listens Player#playbackrateschange
+         */
+        handlePlaybackRateschange(event) {
+            this.update();
+        }
+
+        /**
+         * Get possible playback rates
+         *
+         * @return {Array}
+         *         All possible playback rates
+         */
+        playbackRates() {
+            const player = this.player();
+            return player.playbackRates && player.playbackRates() || [];
+        }
+
+        /**
+         * Get whether playback rates is supported by the tech
+         * and an array of playback rates exists
+         *
+         * @return {boolean}
+         *         Whether changing playback rate is supported
+         */
+        playbackRateSupported() {
+            return this.player().tech_ && this.player().tech_.featuresPlaybackRate && this.playbackRates() && this.playbackRates().length > 0;
+        }
+
+        /**
+         * Hide playback rate controls when they're no playback rate options to select
+         *
+         * @param {Event} [event]
+         *        The event that caused this function to run.
+         *
+         * @listens Player#loadstart
+         */
+        updateVisibility(event) {
+            if (this.playbackRateSupported()) {
+                this.removeClass('vjs-hidden');
+            } else {
+                this.addClass('vjs-hidden');
+            }
+        }
+
+        /**
+         * Update button label when rate changed
+         *
+         * @param {Event} [event]
+         *        The event that caused this function to run.
+         *
+         * @listens Player#ratechange
+         */
+        updateLabel(event) {
+            if (this.playbackRateSupported()) {
+                this.labelEl_.textContent = this.player().playbackRate() + 'x';
+            }
+        }
+    }
+
+    /**
+     * The text that should display over the `PlaybackRateMenuButton`s controls.
+     *
+     * Added for localization.
+     *
+     * @type {string}
+     * @protected
+     */
+    PlaybackRateMenuButton.prototype.controlText_ = 'Playback Rate';
+    Component$1.registerComponent('PlaybackRateMenuButton', PlaybackRateMenuButton);
+
+    /**
+     * @file spacer.js
+     */
+
+    /**
+     * Just an empty spacer element that can be used as an append point for plugins, etc.
+     * Also can be used to create space between elements when necessary.
+     *
+     * @extends Component
+     */
+    class Spacer extends Component$1 {
+        /**
+         * Builds the default DOM `className`.
+         *
+         * @return {string}
+         *         The DOM `className` for this object.
+         */
+        buildCSSClass() {
+            return `vjs-spacer ${super.buildCSSClass()}`;
+        }
+
+        /**
+         * Create the `Component`'s DOM element
+         *
+         * @return {Element}
+         *         The element that was created.
+         */
+        createEl(tag = 'div', props = {}, attributes = {}) {
+            if (!props.className) {
+                props.className = this.buildCSSClass();
+            }
+            return super.createEl(tag, props, attributes);
+        }
+    }
+    Component$1.registerComponent('Spacer', Spacer);
+
+    /**
+     * @file custom-control-spacer.js
+     */
+
+    /**
+     * Spacer specifically meant to be used as an insertion point for new plugins, etc.
+     *
+     * @extends Spacer
+     */
+    class CustomControlSpacer extends Spacer {
+        /**
+         * Builds the default DOM `className`.
+         *
+         * @return {string}
+         *         The DOM `className` for this object.
+         */
+        buildCSSClass() {
+            return `vjs-custom-control-spacer ${super.buildCSSClass()}`;
+        }
+
+        /**
+         * Create the `Component`'s DOM element
+         *
+         * @return {Element}
+         *         The element that was created.
+         */
+        createEl() {
+            return super.createEl('div', {
+                className: this.buildCSSClass(),
+                // No-flex/table-cell mode requires there be some content
+                // in the cell to fill the remaining space of the table.
+                textContent: '\u00a0'
+            });
+        }
+    }
+    Component$1.registerComponent('CustomControlSpacer', CustomControlSpacer);
+
+    /**
+     * @file control-bar.js
+     */
+
+    /**
+     * Container of main controls.
+     *
+     * @extends Component
+     */
+    class ControlBar extends Component$1 {
+        /**
+         * Create the `Component`'s DOM element
+         *
+         * @return {Element}
+         *         The element that was created.
+         */
+        createEl() {
+            return super.createEl('div', {
+                className: 'vjs-control-bar',
+                dir: 'ltr'
+            });
+        }
+    }
+
+    /**
+     * Default options for `ControlBar`
+     *
+     * @type {Object}
+     * @private
+     */
+    ControlBar.prototype.options_ = {
+        children: ['playToggle', 'skipBackward', 'skipForward', 'volumePanel', 'currentTimeDisplay', 'timeDivider', 'durationDisplay', 'progressControl', 'liveDisplay', 'seekToLive', 'remainingTimeDisplay', 'customControlSpacer', 'playbackRateMenuButton', 'chaptersButton', 'descriptionsButton', 'subsCapsButton', 'audioTrackButton', 'fullscreenToggle']
+    };
+    if ('exitPictureInPicture' in document) {
+        ControlBar.prototype.options_.children.splice(ControlBar.prototype.options_.children.length - 1, 0, 'pictureInPictureToggle');
+    }
+    Component$1.registerComponent('ControlBar', ControlBar);
+
+    /**
+     * @file error-display.js
+     */
+
+    /**
+     * A display that indicates an error has occurred. This means that the video
+     * is unplayable.
+     *
+     * @extends ModalDialog
+     */
+    class ErrorDisplay extends ModalDialog {
+        /**
+         * Creates an instance of this class.
+         *
+         * @param  { import('./player').default } player
+         *         The `Player` that this class should be attached to.
+         *
+         * @param  {Object} [options]
+         *         The key/value store of player options.
+         */
+        constructor(player, options) {
+            super(player, options);
+            this.on(player, 'error', e => this.open(e));
+        }
+
+        /**
+         * Builds the default DOM `className`.
+         *
+         * @return {string}
+         *         The DOM `className` for this object.
+         *
+         * @deprecated Since version 5.
+         */
+        buildCSSClass() {
+            return `vjs-error-display ${super.buildCSSClass()}`;
+        }
+
+        /**
+         * Gets the localized error message based on the `Player`s error.
+         *
+         * @return {string}
+         *         The `Player`s error message localized or an empty string.
+         */
+        content() {
+            const error = this.player().error();
+            return error ? this.localize(error.message) : '';
+        }
+    }
+
+    /**
+     * The default options for an `ErrorDisplay`.
+     *
+     * @private
+     */
+    ErrorDisplay.prototype.options_ = Object.assign({}, ModalDialog.prototype.options_, {
+        pauseOnOpen: false,
+        fillAlways: true,
+        temporary: false,
+        uncloseable: true
+    });
+    Component$1.registerComponent('ErrorDisplay', ErrorDisplay);
+
+    /**
+     * @file text-track-settings.js
+     */
+    const LOCAL_STORAGE_KEY$1 = 'vjs-text-track-settings';
+    const COLOR_BLACK = ['#000', 'Black'];
+    const COLOR_BLUE = ['#00F', 'Blue'];
+    const COLOR_CYAN = ['#0FF', 'Cyan'];
+    const COLOR_GREEN = ['#0F0', 'Green'];
+    const COLOR_MAGENTA = ['#F0F', 'Magenta'];
+    const COLOR_RED = ['#F00', 'Red'];
+    const COLOR_WHITE = ['#FFF', 'White'];
+    const COLOR_YELLOW = ['#FF0', 'Yellow'];
+    const OPACITY_OPAQUE = ['1', 'Opaque'];
+    const OPACITY_SEMI = ['0.5', 'Semi-Transparent'];
+    const OPACITY_TRANS = ['0', 'Transparent'];
+
+    // Configuration for the various <select> elements in the DOM of this component.
+    //
+    // Possible keys include:
+    //
+    // `default`:
+    //   The default option index. Only needs to be provided if not zero.
+    // `parser`:
+    //   A function which is used to parse the value from the selected option in
+    //   a customized way.
+    // `selector`:
+    //   The selector used to find the associated <select> element.
+    const selectConfigs = {
+        backgroundColor: {
+            selector: '.vjs-bg-color > select',
+            id: 'captions-background-color-%s',
+            label: 'Color',
+            options: [COLOR_BLACK, COLOR_WHITE, COLOR_RED, COLOR_GREEN, COLOR_BLUE, COLOR_YELLOW, COLOR_MAGENTA, COLOR_CYAN]
+        },
+        backgroundOpacity: {
+            selector: '.vjs-bg-opacity > select',
+            id: 'captions-background-opacity-%s',
+            label: 'Opacity',
+            options: [OPACITY_OPAQUE, OPACITY_SEMI, OPACITY_TRANS]
+        },
+        color: {
+            selector: '.vjs-text-color > select',
+            id: 'captions-foreground-color-%s',
+            label: 'Color',
+            options: [COLOR_WHITE, COLOR_BLACK, COLOR_RED, COLOR_GREEN, COLOR_BLUE, COLOR_YELLOW, COLOR_MAGENTA, COLOR_CYAN]
+        },
+        edgeStyle: {
+            selector: '.vjs-edge-style > select',
+            id: '%s',
+            label: 'Text Edge Style',
+            options: [['none', 'None'], ['raised', 'Raised'], ['depressed', 'Depressed'], ['uniform', 'Uniform'], ['dropshadow', 'Dropshadow']]
+        },
+        fontFamily: {
+            selector: '.vjs-font-family > select',
+            id: 'captions-font-family-%s',
+            label: 'Font Family',
+            options: [['proportionalSansSerif', 'Proportional Sans-Serif'], ['monospaceSansSerif', 'Monospace Sans-Serif'], ['proportionalSerif', 'Proportional Serif'], ['monospaceSerif', 'Monospace Serif'], ['casual', 'Casual'], ['script', 'Script'], ['small-caps', 'Small Caps']]
+        },
+        fontPercent: {
+            selector: '.vjs-font-percent > select',
+            id: 'captions-font-size-%s',
+            label: 'Font Size',
+            options: [['0.50', '50%'], ['0.75', '75%'], ['1.00', '100%'], ['1.25', '125%'], ['1.50', '150%'], ['1.75', '175%'], ['2.00', '200%'], ['3.00', '300%'], ['4.00', '400%']],
+            default: 2,
+            parser: v => v === '1.00' ? null : Number(v)
+        },
+        textOpacity: {
+            selector: '.vjs-text-opacity > select',
+            id: 'captions-foreground-opacity-%s',
+            label: 'Opacity',
+            options: [OPACITY_OPAQUE, OPACITY_SEMI]
+        },
+        // Options for this object are defined below.
+        windowColor: {
+            selector: '.vjs-window-color > select',
+            id: 'captions-window-color-%s',
+            label: 'Color'
+        },
+        // Options for this object are defined below.
+        windowOpacity: {
+            selector: '.vjs-window-opacity > select',
+            id: 'captions-window-opacity-%s',
+            label: 'Opacity',
+            options: [OPACITY_TRANS, OPACITY_SEMI, OPACITY_OPAQUE]
+        }
+    };
+    selectConfigs.windowColor.options = selectConfigs.backgroundColor.options;
+
+    /**
+     * Get the actual value of an option.
+     *
+     * @param  {string} value
+     *         The value to get
+     *
+     * @param  {Function} [parser]
+     *         Optional function to adjust the value.
+     *
+     * @return {*}
+     *         - Will be `undefined` if no value exists
+     *         - Will be `undefined` if the given value is "none".
+     *         - Will be the actual value otherwise.
+     *
+     * @private
+     */
+    function parseOptionValue(value, parser) {
+        if (parser) {
+            value = parser(value);
+        }
+        if (value && value !== 'none') {
+            return value;
+        }
+    }
+
+    /**
+     * Gets the value of the selected <option> element within a <select> element.
+     *
+     * @param  {Element} el
+     *         the element to look in
+     *
+     * @param  {Function} [parser]
+     *         Optional function to adjust the value.
+     *
+     * @return {*}
+     *         - Will be `undefined` if no value exists
+     *         - Will be `undefined` if the given value is "none".
+     *         - Will be the actual value otherwise.
+     *
+     * @private
+     */
+    function getSelectedOptionValue(el, parser) {
+        const value = el.options[el.options.selectedIndex].value;
+        return parseOptionValue(value, parser);
+    }
+
+    /**
+     * Sets the selected <option> element within a <select> element based on a
+     * given value.
+     *
+     * @param {Element} el
+     *        The element to look in.
+     *
+     * @param {string} value
+     *        the property to look on.
+     *
+     * @param {Function} [parser]
+     *        Optional function to adjust the value before comparing.
+     *
+     * @private
+     */
+    function setSelectedOption(el, value, parser) {
+        if (!value) {
+            return;
+        }
+        for (let i = 0; i < el.options.length; i++) {
+            if (parseOptionValue(el.options[i].value, parser) === value) {
+                el.selectedIndex = i;
+                break;
+            }
+        }
+    }
+
+    /**
+     * Manipulate Text Tracks settings.
+     *
+     * @extends ModalDialog
+     */
+    class TextTrackSettings extends ModalDialog {
+        /**
+         * Creates an instance of this class.
+         *
+         * @param { import('../player').default } player
+         *         The `Player` that this class should be attached to.
+         *
+         * @param {Object} [options]
+         *         The key/value store of player options.
+         */
+        constructor(player, options) {
+            options.temporary = false;
+            super(player, options);
+            this.updateDisplay = this.updateDisplay.bind(this);
+
+            // fill the modal and pretend we have opened it
+            this.fill();
+            this.hasBeenOpened_ = this.hasBeenFilled_ = true;
+            this.endDialog = createEl('p', {
+                className: 'vjs-control-text',
+                textContent: this.localize('End of dialog window.')
+            });
+            this.el().appendChild(this.endDialog);
+            this.setDefaults();
+
+            // Grab `persistTextTrackSettings` from the player options if not passed in child options
+            if (options.persistTextTrackSettings === undefined) {
+                this.options_.persistTextTrackSettings = this.options_.playerOptions.persistTextTrackSettings;
+            }
+            this.on(this.$('.vjs-done-button'), 'click', () => {
+                this.saveSettings();
+                this.close();
+            });
+            this.on(this.$('.vjs-default-button'), 'click', () => {
+                this.setDefaults();
+                this.updateDisplay();
+            });
+            each(selectConfigs, config => {
+                this.on(this.$(config.selector), 'change', this.updateDisplay);
+            });
+            if (this.options_.persistTextTrackSettings) {
+                this.restoreSettings();
+            }
+        }
+        dispose() {
+            this.endDialog = null;
+            super.dispose();
+        }
+
+        /**
+         * Create a <select> element with configured options.
+         *
+         * @param {string} key
+         *        Configuration key to use during creation.
+         *
+         * @return {string}
+         *         An HTML string.
+         *
+         * @private
+         */
+        createElSelect_(key, legendId = '', type = 'label') {
+            const config = selectConfigs[key];
+            const id = config.id.replace('%s', this.id_);
+            const selectLabelledbyIds = [legendId, id].join(' ').trim();
+            return [`<${type} id="${id}" class="${type === 'label' ? 'vjs-label' : ''}">`, this.localize(config.label), `</${type}>`, `<select aria-labelledby="${selectLabelledbyIds}">`].concat(config.options.map(o => {
+                const optionId = id + '-' + o[1].replace(/\W+/g, '');
+                return [`<option id="${optionId}" value="${o[0]}" `, `aria-labelledby="${selectLabelledbyIds} ${optionId}">`, this.localize(o[1]), '</option>'].join('');
+            })).concat('</select>').join('');
+        }
+
+        /**
+         * Create foreground color element for the component
+         *
+         * @return {string}
+         *         An HTML string.
+         *
+         * @private
+         */
+        createElFgColor_() {
+            const legendId = `captions-text-legend-${this.id_}`;
+            return ['<fieldset class="vjs-fg vjs-track-setting">', `<legend id="${legendId}">`, this.localize('Text'), '</legend>', '<span class="vjs-text-color">', this.createElSelect_('color', legendId), '</span>', '<span class="vjs-text-opacity vjs-opacity">', this.createElSelect_('textOpacity', legendId), '</span>', '</fieldset>'].join('');
+        }
+
+        /**
+         * Create background color element for the component
+         *
+         * @return {string}
+         *         An HTML string.
+         *
+         * @private
+         */
+        createElBgColor_() {
+            const legendId = `captions-background-${this.id_}`;
+            return ['<fieldset class="vjs-bg vjs-track-setting">', `<legend id="${legendId}">`, this.localize('Text Background'), '</legend>', '<span class="vjs-bg-color">', this.createElSelect_('backgroundColor', legendId), '</span>', '<span class="vjs-bg-opacity vjs-opacity">', this.createElSelect_('backgroundOpacity', legendId), '</span>', '</fieldset>'].join('');
+        }
+
+        /**
+         * Create window color element for the component
+         *
+         * @return {string}
+         *         An HTML string.
+         *
+         * @private
+         */
+        createElWinColor_() {
+            const legendId = `captions-window-${this.id_}`;
+            return ['<fieldset class="vjs-window vjs-track-setting">', `<legend id="${legendId}">`, this.localize('Caption Area Background'), '</legend>', '<span class="vjs-window-color">', this.createElSelect_('windowColor', legendId), '</span>', '<span class="vjs-window-opacity vjs-opacity">', this.createElSelect_('windowOpacity', legendId), '</span>', '</fieldset>'].join('');
+        }
+
+        /**
+         * Create color elements for the component
+         *
+         * @return {Element}
+         *         The element that was created
+         *
+         * @private
+         */
+        createElColors_() {
+            return createEl('div', {
+                className: 'vjs-track-settings-colors',
+                innerHTML: [this.createElFgColor_(), this.createElBgColor_(), this.createElWinColor_()].join('')
+            });
+        }
+
+        /**
+         * Create font elements for the component
+         *
+         * @return {Element}
+         *         The element that was created.
+         *
+         * @private
+         */
+        createElFont_() {
+            return createEl('div', {
+                className: 'vjs-track-settings-font',
+                innerHTML: ['<fieldset class="vjs-font-percent vjs-track-setting">', this.createElSelect_('fontPercent', '', 'legend'), '</fieldset>', '<fieldset class="vjs-edge-style vjs-track-setting">', this.createElSelect_('edgeStyle', '', 'legend'), '</fieldset>', '<fieldset class="vjs-font-family vjs-track-setting">', this.createElSelect_('fontFamily', '', 'legend'), '</fieldset>'].join('')
+            });
+        }
+
+        /**
+         * Create controls for the component
+         *
+         * @return {Element}
+         *         The element that was created.
+         *
+         * @private
+         */
+        createElControls_() {
+            const defaultsDescription = this.localize('restore all settings to the default values');
+            return createEl('div', {
+                className: 'vjs-track-settings-controls',
+                innerHTML: [`<button type="button" class="vjs-default-button" title="${defaultsDescription}">`, this.localize('Reset'), `<span class="vjs-control-text"> ${defaultsDescription}</span>`, '</button>', `<button type="button" class="vjs-done-button">${this.localize('Done')}</button>`].join('')
+            });
+        }
+        content() {
+            return [this.createElColors_(), this.createElFont_(), this.createElControls_()];
+        }
+        label() {
+            return this.localize('Caption Settings Dialog');
+        }
+        description() {
+            return this.localize('Beginning of dialog window. Escape will cancel and close the window.');
+        }
+        buildCSSClass() {
+            return super.buildCSSClass() + ' vjs-text-track-settings';
+        }
+
+        /**
+         * Gets an object of text track settings (or null).
+         *
+         * @return {Object}
+         *         An object with config values parsed from the DOM or localStorage.
+         */
+        getValues() {
+            return reduce(selectConfigs, (accum, config, key) => {
+                const value = getSelectedOptionValue(this.$(config.selector), config.parser);
+                if (value !== undefined) {
+                    accum[key] = value;
+                }
+                return accum;
+            }, {});
+        }
+
+        /**
+         * Sets text track settings from an object of values.
+         *
+         * @param {Object} values
+         *        An object with config values parsed from the DOM or localStorage.
+         */
+        setValues(values) {
+            each(selectConfigs, (config, key) => {
+                setSelectedOption(this.$(config.selector), values[key], config.parser);
+            });
+        }
+
+        /**
+         * Sets all `<select>` elements to their default values.
+         */
+        setDefaults() {
+            each(selectConfigs, config => {
+                const index = config.hasOwnProperty('default') ? config.default : 0;
+                this.$(config.selector).selectedIndex = index;
+            });
+        }
+
+        /**
+         * Restore texttrack settings from localStorage
+         */
+        restoreSettings() {
+            let values;
+            try {
+                values = JSON.parse(window.localStorage.getItem(LOCAL_STORAGE_KEY$1));
+            } catch (err) {
+                log$1.warn(err);
+            }
+            if (values) {
+                this.setValues(values);
+            }
+        }
+
+        /**
+         * Save text track settings to localStorage
+         */
+        saveSettings() {
+            if (!this.options_.persistTextTrackSettings) {
+                return;
+            }
+            const values = this.getValues();
+            try {
+                if (Object.keys(values).length) {
+                    window.localStorage.setItem(LOCAL_STORAGE_KEY$1, JSON.stringify(values));
+                } else {
+                    window.localStorage.removeItem(LOCAL_STORAGE_KEY$1);
+                }
+            } catch (err) {
+                log$1.warn(err);
+            }
+        }
+
+        /**
+         * Update display of text track settings
+         */
+        updateDisplay() {
+            const ttDisplay = this.player_.getChild('textTrackDisplay');
+            if (ttDisplay) {
+                ttDisplay.updateDisplay();
+            }
+        }
+
+        /**
+         * conditionally blur the element and refocus the captions button
+         *
+         * @private
+         */
+        conditionalBlur_() {
+            this.previouslyActiveEl_ = null;
+            const cb = this.player_.controlBar;
+            const subsCapsBtn = cb && cb.subsCapsButton;
+            const ccBtn = cb && cb.captionsButton;
+            if (subsCapsBtn) {
+                subsCapsBtn.focus();
+            } else if (ccBtn) {
+                ccBtn.focus();
+            }
+        }
+
+        /**
+         * Repopulate dialog with new localizations on languagechange
+         */
+        handleLanguagechange() {
+            this.fill();
+        }
+    }
+    Component$1.registerComponent('TextTrackSettings', TextTrackSettings);
+
+    /**
+     * @file resize-manager.js
+     */
+
+    /**
+     * A Resize Manager. It is in charge of triggering `playerresize` on the player in the right conditions.
+     *
+     * It'll either create an iframe and use a debounced resize handler on it or use the new {@link https://wicg.github.io/ResizeObserver/|ResizeObserver}.
+     *
+     * If the ResizeObserver is available natively, it will be used. A polyfill can be passed in as an option.
+     * If a `playerresize` event is not needed, the ResizeManager component can be removed from the player, see the example below.
+     *
+     * @example <caption>How to disable the resize manager</caption>
+     * const player = videojs('#vid', {
+     *   resizeManager: false
+     * });
+     *
+     * @see {@link https://wicg.github.io/ResizeObserver/|ResizeObserver specification}
+     *
+     * @extends Component
+     */
+    class ResizeManager extends Component$1 {
+        /**
+         * Create the ResizeManager.
+         *
+         * @param {Object} player
+         *        The `Player` that this class should be attached to.
+         *
+         * @param {Object} [options]
+         *        The key/value store of ResizeManager options.
+         *
+         * @param {Object} [options.ResizeObserver]
+         *        A polyfill for ResizeObserver can be passed in here.
+         *        If this is set to null it will ignore the native ResizeObserver and fall back to the iframe fallback.
+         */
+        constructor(player, options) {
+            let RESIZE_OBSERVER_AVAILABLE = options.ResizeObserver || window.ResizeObserver;
+
+            // if `null` was passed, we want to disable the ResizeObserver
+            if (options.ResizeObserver === null) {
+                RESIZE_OBSERVER_AVAILABLE = false;
+            }
+
+            // Only create an element when ResizeObserver isn't available
+            const options_ = merge$2({
+                createEl: !RESIZE_OBSERVER_AVAILABLE,
+                reportTouchActivity: false
+            }, options);
+            super(player, options_);
+            this.ResizeObserver = options.ResizeObserver || window.ResizeObserver;
+            this.loadListener_ = null;
+            this.resizeObserver_ = null;
+            this.debouncedHandler_ = debounce(() => {
+                this.resizeHandler();
+            }, 100, false, this);
+            if (RESIZE_OBSERVER_AVAILABLE) {
+                this.resizeObserver_ = new this.ResizeObserver(this.debouncedHandler_);
+                this.resizeObserver_.observe(player.el());
+            } else {
+                this.loadListener_ = () => {
+                    if (!this.el_ || !this.el_.contentWindow) {
+                        return;
+                    }
+                    const debouncedHandler_ = this.debouncedHandler_;
+                    let unloadListener_ = this.unloadListener_ = function () {
+                        off(this, 'resize', debouncedHandler_);
+                        off(this, 'unload', unloadListener_);
+                        unloadListener_ = null;
+                    };
+
+                    // safari and edge can unload the iframe before resizemanager dispose
+                    // we have to dispose of event handlers correctly before that happens
+                    on(this.el_.contentWindow, 'unload', unloadListener_);
+                    on(this.el_.contentWindow, 'resize', debouncedHandler_);
+                };
+                this.one('load', this.loadListener_);
+            }
+        }
+        createEl() {
+            return super.createEl('iframe', {
+                className: 'vjs-resize-manager',
+                tabIndex: -1,
+                title: this.localize('No content')
+            }, {
+                'aria-hidden': 'true'
+            });
+        }
+
+        /**
+         * Called when a resize is triggered on the iframe or a resize is observed via the ResizeObserver
+         *
+         * @fires Player#playerresize
+         */
+        resizeHandler() {
+            /**
+             * Called when the player size has changed
+             *
+             * @event Player#playerresize
+             * @type {Event}
+             */
+            // make sure player is still around to trigger
+            // prevents this from causing an error after dispose
+            if (!this.player_ || !this.player_.trigger) {
+                return;
+            }
+            this.player_.trigger('playerresize');
+        }
+        dispose() {
+            if (this.debouncedHandler_) {
+                this.debouncedHandler_.cancel();
+            }
+            if (this.resizeObserver_) {
+                if (this.player_.el()) {
+                    this.resizeObserver_.unobserve(this.player_.el());
+                }
+                this.resizeObserver_.disconnect();
+            }
+            if (this.loadListener_) {
+                this.off('load', this.loadListener_);
+            }
+            if (this.el_ && this.el_.contentWindow && this.unloadListener_) {
+                this.unloadListener_.call(this.el_.contentWindow);
+            }
+            this.ResizeObserver = null;
+            this.resizeObserver = null;
+            this.debouncedHandler_ = null;
+            this.loadListener_ = null;
+            super.dispose();
+        }
+    }
+    Component$1.registerComponent('ResizeManager', ResizeManager);
+
+    const defaults = {
+        trackingThreshold: 20,
+        liveTolerance: 15
+    };
+
+    /*
+    track when we are at the live edge, and other helpers for live playback */
+
+    /**
+     * A class for checking live current time and determining when the player
+     * is at or behind the live edge.
+     */
+    class LiveTracker extends Component$1 {
+        /**
+         * Creates an instance of this class.
+         *
+         * @param { import('./player').default } player
+         *        The `Player` that this class should be attached to.
+         *
+         * @param {Object} [options]
+         *        The key/value store of player options.
+         *
+         * @param {number} [options.trackingThreshold=20]
+         *        Number of seconds of live window (seekableEnd - seekableStart) that
+         *        media needs to have before the liveui will be shown.
+         *
+         * @param {number} [options.liveTolerance=15]
+         *        Number of seconds behind live that we have to be
+         *        before we will be considered non-live. Note that this will only
+         *        be used when playing at the live edge. This allows large seekable end
+         *        changes to not effect whether we are live or not.
+         */
+        constructor(player, options) {
+            // LiveTracker does not need an element
+            const options_ = merge$2(defaults, options, {
+                createEl: false
+            });
+            super(player, options_);
+            this.trackLiveHandler_ = () => this.trackLive_();
+            this.handlePlay_ = e => this.handlePlay(e);
+            this.handleFirstTimeupdate_ = e => this.handleFirstTimeupdate(e);
+            this.handleSeeked_ = e => this.handleSeeked(e);
+            this.seekToLiveEdge_ = e => this.seekToLiveEdge(e);
+            this.reset_();
+            this.on(this.player_, 'durationchange', e => this.handleDurationchange(e));
+            // we should try to toggle tracking on canplay as native playback engines, like Safari
+            // may not have the proper values for things like seekableEnd until then
+            this.on(this.player_, 'canplay', () => this.toggleTracking());
+        }
+
+        /**
+         * all the functionality for tracking when seek end changes
+         * and for tracking how far past seek end we should be
+         */
+        trackLive_() {
+            const seekable = this.player_.seekable();
+
+            // skip undefined seekable
+            if (!seekable || !seekable.length) {
+                return;
+            }
+            const newTime = Number(window.performance.now().toFixed(4));
+            const deltaTime = this.lastTime_ === -1 ? 0 : (newTime - this.lastTime_) / 1000;
+            this.lastTime_ = newTime;
+            this.pastSeekEnd_ = this.pastSeekEnd() + deltaTime;
+            const liveCurrentTime = this.liveCurrentTime();
+            const currentTime = this.player_.currentTime();
+
+            // we are behind live if any are true
+            // 1. the player is paused
+            // 2. the user seeked to a location 2 seconds away from live
+            // 3. the difference between live and current time is greater
+            //    liveTolerance which defaults to 15s
+            let isBehind = this.player_.paused() || this.seekedBehindLive_ || Math.abs(liveCurrentTime - currentTime) > this.options_.liveTolerance;
+
+            // we cannot be behind if
+            // 1. until we have not seen a timeupdate yet
+            // 2. liveCurrentTime is Infinity, which happens on Android and Native Safari
+            if (!this.timeupdateSeen_ || liveCurrentTime === Infinity) {
+                isBehind = false;
+            }
+            if (isBehind !== this.behindLiveEdge_) {
+                this.behindLiveEdge_ = isBehind;
+                this.trigger('liveedgechange');
+            }
+        }
+
+        /**
+         * handle a durationchange event on the player
+         * and start/stop tracking accordingly.
+         */
+        handleDurationchange() {
+            this.toggleTracking();
+        }
+
+        /**
+         * start/stop tracking
+         */
+        toggleTracking() {
+            if (this.player_.duration() === Infinity && this.liveWindow() >= this.options_.trackingThreshold) {
+                if (this.player_.options_.liveui) {
+                    this.player_.addClass('vjs-liveui');
+                }
+                this.startTracking();
+            } else {
+                this.player_.removeClass('vjs-liveui');
+                this.stopTracking();
+            }
+        }
+
+        /**
+         * start tracking live playback
+         */
+        startTracking() {
+            if (this.isTracking()) {
+                return;
+            }
+
+            // If we haven't seen a timeupdate, we need to check whether playback
+            // began before this component started tracking. This can happen commonly
+            // when using autoplay.
+            if (!this.timeupdateSeen_) {
+                this.timeupdateSeen_ = this.player_.hasStarted();
+            }
+            this.trackingInterval_ = this.setInterval(this.trackLiveHandler_, UPDATE_REFRESH_INTERVAL);
+            this.trackLive_();
+            this.on(this.player_, ['play', 'pause'], this.trackLiveHandler_);
+            if (!this.timeupdateSeen_) {
+                this.one(this.player_, 'play', this.handlePlay_);
+                this.one(this.player_, 'timeupdate', this.handleFirstTimeupdate_);
+            } else {
+                this.on(this.player_, 'seeked', this.handleSeeked_);
+            }
+        }
+
+        /**
+         * handle the first timeupdate on the player if it wasn't already playing
+         * when live tracker started tracking.
+         */
+        handleFirstTimeupdate() {
+            this.timeupdateSeen_ = true;
+            this.on(this.player_, 'seeked', this.handleSeeked_);
+        }
+
+        /**
+         * Keep track of what time a seek starts, and listen for seeked
+         * to find where a seek ends.
+         */
+        handleSeeked() {
+            const timeDiff = Math.abs(this.liveCurrentTime() - this.player_.currentTime());
+            this.seekedBehindLive_ = this.nextSeekedFromUser_ && timeDiff > 2;
+            this.nextSeekedFromUser_ = false;
+            this.trackLive_();
+        }
+
+        /**
+         * handle the first play on the player, and make sure that we seek
+         * right to the live edge.
+         */
+        handlePlay() {
+            this.one(this.player_, 'timeupdate', this.seekToLiveEdge_);
+        }
+
+        /**
+         * Stop tracking, and set all internal variables to
+         * their initial value.
+         */
+        reset_() {
+            this.lastTime_ = -1;
+            this.pastSeekEnd_ = 0;
+            this.lastSeekEnd_ = -1;
+            this.behindLiveEdge_ = true;
+            this.timeupdateSeen_ = false;
+            this.seekedBehindLive_ = false;
+            this.nextSeekedFromUser_ = false;
+            this.clearInterval(this.trackingInterval_);
+            this.trackingInterval_ = null;
+            this.off(this.player_, ['play', 'pause'], this.trackLiveHandler_);
+            this.off(this.player_, 'seeked', this.handleSeeked_);
+            this.off(this.player_, 'play', this.handlePlay_);
+            this.off(this.player_, 'timeupdate', this.handleFirstTimeupdate_);
+            this.off(this.player_, 'timeupdate', this.seekToLiveEdge_);
+        }
+
+        /**
+         * The next seeked event is from the user. Meaning that any seek
+         * > 2s behind live will be considered behind live for real and
+         * liveTolerance will be ignored.
+         */
+        nextSeekedFromUser() {
+            this.nextSeekedFromUser_ = true;
+        }
+
+        /**
+         * stop tracking live playback
+         */
+        stopTracking() {
+            if (!this.isTracking()) {
+                return;
+            }
+            this.reset_();
+            this.trigger('liveedgechange');
+        }
+
+        /**
+         * A helper to get the player seekable end
+         * so that we don't have to null check everywhere
+         *
+         * @return {number}
+         *         The furthest seekable end or Infinity.
+         */
+        seekableEnd() {
+            const seekable = this.player_.seekable();
+            const seekableEnds = [];
+            let i = seekable ? seekable.length : 0;
+            while (i--) {
+                seekableEnds.push(seekable.end(i));
+            }
+
+            // grab the furthest seekable end after sorting, or if there are none
+            // default to Infinity
+            return seekableEnds.length ? seekableEnds.sort()[seekableEnds.length - 1] : Infinity;
+        }
+
+        /**
+         * A helper to get the player seekable start
+         * so that we don't have to null check everywhere
+         *
+         * @return {number}
+         *         The earliest seekable start or 0.
+         */
+        seekableStart() {
+            const seekable = this.player_.seekable();
+            const seekableStarts = [];
+            let i = seekable ? seekable.length : 0;
+            while (i--) {
+                seekableStarts.push(seekable.start(i));
+            }
+
+            // grab the first seekable start after sorting, or if there are none
+            // default to 0
+            return seekableStarts.length ? seekableStarts.sort()[0] : 0;
+        }
+
+        /**
+         * Get the live time window aka
+         * the amount of time between seekable start and
+         * live current time.
+         *
+         * @return {number}
+         *         The amount of seconds that are seekable in
+         *         the live video.
+         */
+        liveWindow() {
+            const liveCurrentTime = this.liveCurrentTime();
+
+            // if liveCurrenTime is Infinity then we don't have a liveWindow at all
+            if (liveCurrentTime === Infinity) {
+                return 0;
+            }
+            return liveCurrentTime - this.seekableStart();
+        }
+
+        /**
+         * Determines if the player is live, only checks if this component
+         * is tracking live playback or not
+         *
+         * @return {boolean}
+         *         Whether liveTracker is tracking
+         */
+        isLive() {
+            return this.isTracking();
+        }
+
+        /**
+         * Determines if currentTime is at the live edge and won't fall behind
+         * on each seekableendchange
+         *
+         * @return {boolean}
+         *         Whether playback is at the live edge
+         */
+        atLiveEdge() {
+            return !this.behindLiveEdge();
+        }
+
+        /**
+         * get what we expect the live current time to be
+         *
+         * @return {number}
+         *         The expected live current time
+         */
+        liveCurrentTime() {
+            return this.pastSeekEnd() + this.seekableEnd();
+        }
+
+        /**
+         * The number of seconds that have occurred after seekable end
+         * changed. This will be reset to 0 once seekable end changes.
+         *
+         * @return {number}
+         *         Seconds past the current seekable end
+         */
+        pastSeekEnd() {
+            const seekableEnd = this.seekableEnd();
+            if (this.lastSeekEnd_ !== -1 && seekableEnd !== this.lastSeekEnd_) {
+                this.pastSeekEnd_ = 0;
+            }
+            this.lastSeekEnd_ = seekableEnd;
+            return this.pastSeekEnd_;
+        }
+
+        /**
+         * If we are currently behind the live edge, aka currentTime will be
+         * behind on a seekableendchange
+         *
+         * @return {boolean}
+         *         If we are behind the live edge
+         */
+        behindLiveEdge() {
+            return this.behindLiveEdge_;
+        }
+
+        /**
+         * Whether live tracker is currently tracking or not.
+         */
+        isTracking() {
+            return typeof this.trackingInterval_ === 'number';
+        }
+
+        /**
+         * Seek to the live edge if we are behind the live edge
+         */
+        seekToLiveEdge() {
+            this.seekedBehindLive_ = false;
+            if (this.atLiveEdge()) {
+                return;
+            }
+            this.nextSeekedFromUser_ = false;
+            this.player_.currentTime(this.liveCurrentTime());
+        }
+
+        /**
+         * Dispose of liveTracker
+         */
+        dispose() {
+            this.stopTracking();
+            super.dispose();
+        }
+    }
+    Component$1.registerComponent('LiveTracker', LiveTracker);
+
+    /**
+     * Displays an element over the player which contains an optional title and
+     * description for the current content.
+     *
+     * Much of the code for this component originated in the now obsolete
+     * videojs-dock plugin: https://github.com/brightcove/videojs-dock/
+     *
+     * @extends Component
+     */
+    class TitleBar extends Component$1 {
+        constructor(player, options) {
+            super(player, options);
+            this.on('statechanged', e => this.updateDom_());
+            this.updateDom_();
+        }
+
+        /**
+         * Create the `TitleBar`'s DOM element
+         *
+         * @return {Element}
+         *         The element that was created.
+         */
+        createEl() {
+            this.els = {
+                title: createEl('div', {
+                    className: 'vjs-title-bar-title',
+                    id: `vjs-title-bar-title-${newGUID()}`
+                }),
+                description: createEl('div', {
+                    className: 'vjs-title-bar-description',
+                    id: `vjs-title-bar-description-${newGUID()}`
+                })
+            };
+            return createEl('div', {
+                className: 'vjs-title-bar'
+            }, {}, Object.values(this.els));
+        }
+
+        /**
+         * Updates the DOM based on the component's state object.
+         */
+        updateDom_() {
+            const tech = this.player_.tech_;
+            const techEl = tech && tech.el_;
+            const techAriaAttrs = {
+                title: 'aria-labelledby',
+                description: 'aria-describedby'
+            };
+            ['title', 'description'].forEach(k => {
+                const value = this.state[k];
+                const el = this.els[k];
+                const techAriaAttr = techAriaAttrs[k];
+                emptyEl(el);
+                if (value) {
+                    textContent(el, value);
+                }
+
+                // If there is a tech element available, update its ARIA attributes
+                // according to whether a title and/or description have been provided.
+                if (techEl) {
+                    techEl.removeAttribute(techAriaAttr);
+                    if (value) {
+                        techEl.setAttribute(techAriaAttr, el.id);
+                    }
+                }
+            });
+            if (this.state.title || this.state.description) {
+                this.show();
+            } else {
+                this.hide();
+            }
+        }
+
+        /**
+         * Update the contents of the title bar component with new title and
+         * description text.
+         *
+         * If both title and description are missing, the title bar will be hidden.
+         *
+         * If either title or description are present, the title bar will be visible.
+         *
+         * NOTE: Any previously set value will be preserved. To unset a previously
+         * set value, you must pass an empty string or null.
+         *
+         * For example:
+         *
+         * ```
+         * update({title: 'foo', description: 'bar'}) // title: 'foo', description: 'bar'
+         * update({description: 'bar2'}) // title: 'foo', description: 'bar2'
+         * update({title: ''}) // title: '', description: 'bar2'
+         * update({title: 'foo', description: null}) // title: 'foo', description: null
+         * ```
+         *
+         * @param  {Object} [options={}]
+         *         An options object. When empty, the title bar will be hidden.
+         *
+         * @param  {string} [options.title]
+         *         A title to display in the title bar.
+         *
+         * @param  {string} [options.description]
+         *         A description to display in the title bar.
+         */
+        update(options) {
+            this.setState(options);
+        }
+
+        /**
+         * Dispose the component.
+         */
+        dispose() {
+            const tech = this.player_.tech_;
+            const techEl = tech && tech.el_;
+            if (techEl) {
+                techEl.removeAttribute('aria-labelledby');
+                techEl.removeAttribute('aria-describedby');
+            }
+            super.dispose();
+            this.els = null;
+        }
+    }
+    Component$1.registerComponent('TitleBar', TitleBar);
+
+    /**
+     * This function is used to fire a sourceset when there is something
+     * similar to `mediaEl.load()` being called. It will try to find the source via
+     * the `src` attribute and then the `<source>` elements. It will then fire `sourceset`
+     * with the source that was found or empty string if we cannot know. If it cannot
+     * find a source then `sourceset` will not be fired.
+     *
+     * @param { import('./html5').default } tech
+     *        The tech object that sourceset was setup on
+     *
+     * @return {boolean}
+     *         returns false if the sourceset was not fired and true otherwise.
+     */
+    const sourcesetLoad = tech => {
+        const el = tech.el();
+
+        // if `el.src` is set, that source will be loaded.
+        if (el.hasAttribute('src')) {
+            tech.triggerSourceset(el.src);
+            return true;
+        }
+
+        /**
+         * Since there isn't a src property on the media element, source elements will be used for
+         * implementing the source selection algorithm. This happens asynchronously and
+         * for most cases were there is more than one source we cannot tell what source will
+         * be loaded, without re-implementing the source selection algorithm. At this time we are not
+         * going to do that. There are three special cases that we do handle here though:
+         *
+         * 1. If there are no sources, do not fire `sourceset`.
+         * 2. If there is only one `<source>` with a `src` property/attribute that is our `src`
+         * 3. If there is more than one `<source>` but all of them have the same `src` url.
+         *    That will be our src.
+         */
+        const sources = tech.$$('source');
+        const srcUrls = [];
+        let src = '';
+
+        // if there are no sources, do not fire sourceset
+        if (!sources.length) {
+            return false;
+        }
+
+        // only count valid/non-duplicate source elements
+        for (let i = 0; i < sources.length; i++) {
+            const url = sources[i].src;
+            if (url && srcUrls.indexOf(url) === -1) {
+                srcUrls.push(url);
+            }
+        }
+
+        // there were no valid sources
+        if (!srcUrls.length) {
+            return false;
+        }
+
+        // there is only one valid source element url
+        // use that
+        if (srcUrls.length === 1) {
+            src = srcUrls[0];
+        }
+        tech.triggerSourceset(src);
+        return true;
+    };
+
+    /**
+     * our implementation of an `innerHTML` descriptor for browsers
+     * that do not have one.
+     */
+    const innerHTMLDescriptorPolyfill = Object.defineProperty({}, 'innerHTML', {
+        get() {
+            return this.cloneNode(true).innerHTML;
+        },
+        set(v) {
+            // make a dummy node to use innerHTML on
+            const dummy = document.createElement(this.nodeName.toLowerCase());
+
+            // set innerHTML to the value provided
+            dummy.innerHTML = v;
+
+            // make a document fragment to hold the nodes from dummy
+            const docFrag = document.createDocumentFragment();
+
+            // copy all of the nodes created by the innerHTML on dummy
+            // to the document fragment
+            while (dummy.childNodes.length) {
+                docFrag.appendChild(dummy.childNodes[0]);
+            }
+
+            // remove content
+            this.innerText = '';
+
+            // now we add all of that html in one by appending the
+            // document fragment. This is how innerHTML does it.
+            window.Element.prototype.appendChild.call(this, docFrag);
+
+            // then return the result that innerHTML's setter would
+            return this.innerHTML;
+        }
+    });
+
+    /**
+     * Get a property descriptor given a list of priorities and the
+     * property to get.
+     */
+    const getDescriptor = (priority, prop) => {
+        let descriptor = {};
+        for (let i = 0; i < priority.length; i++) {
+            descriptor = Object.getOwnPropertyDescriptor(priority[i], prop);
+            if (descriptor && descriptor.set && descriptor.get) {
+                break;
+            }
+        }
+        descriptor.enumerable = true;
+        descriptor.configurable = true;
+        return descriptor;
+    };
+    const getInnerHTMLDescriptor = tech => getDescriptor([tech.el(), window.HTMLMediaElement.prototype, window.Element.prototype, innerHTMLDescriptorPolyfill], 'innerHTML');
+
+    /**
+     * Patches browser internal functions so that we can tell synchronously
+     * if a `<source>` was appended to the media element. For some reason this
+     * causes a `sourceset` if the the media element is ready and has no source.
+     * This happens when:
+     * - The page has just loaded and the media element does not have a source.
+     * - The media element was emptied of all sources, then `load()` was called.
+     *
+     * It does this by patching the following functions/properties when they are supported:
+     *
+     * - `append()` - can be used to add a `<source>` element to the media element
+     * - `appendChild()` - can be used to add a `<source>` element to the media element
+     * - `insertAdjacentHTML()` -  can be used to add a `<source>` element to the media element
+     * - `innerHTML` -  can be used to add a `<source>` element to the media element
+     *
+     * @param {Html5} tech
+     *        The tech object that sourceset is being setup on.
+     */
+    const firstSourceWatch = function (tech) {
+        const el = tech.el();
+
+        // make sure firstSourceWatch isn't setup twice.
+        if (el.resetSourceWatch_) {
+            return;
+        }
+        const old = {};
+        const innerDescriptor = getInnerHTMLDescriptor(tech);
+        const appendWrapper = appendFn => (...args) => {
+            const retval = appendFn.apply(el, args);
+            sourcesetLoad(tech);
+            return retval;
+        };
+        ['append', 'appendChild', 'insertAdjacentHTML'].forEach(k => {
+            if (!el[k]) {
+                return;
+            }
+
+            // store the old function
+            old[k] = el[k];
+
+            // call the old function with a sourceset if a source
+            // was loaded
+            el[k] = appendWrapper(old[k]);
+        });
+        Object.defineProperty(el, 'innerHTML', merge$2(innerDescriptor, {
+            set: appendWrapper(innerDescriptor.set)
+        }));
+        el.resetSourceWatch_ = () => {
+            el.resetSourceWatch_ = null;
+            Object.keys(old).forEach(k => {
+                el[k] = old[k];
+            });
+            Object.defineProperty(el, 'innerHTML', innerDescriptor);
         };
 
-        this.one(['ready', 'loadstart'], this.waitToPlay_); // if we are in Safari, there is a high chance that loadstart will trigger after the gesture timeperiod
-        // in that case, we need to prime the video element by calling load so it'll be ready in time
-
-        if (!isSrcReady && (IS_ANY_SAFARI || IS_IOS)) {
-          this.load();
-        }
-
-        return;
-      } // If the player/tech is ready and we have a source, we can attempt playback.
-
-
-      var val = this.techGet_('play'); // play was terminated if the returned value is null
-
-      if (val === null) {
-        this.runPlayTerminatedQueue_();
-      } else {
-        this.runPlayCallbacks_(val);
-      }
-    }
-    /**
-     * These functions will be run when if play is terminated. If play
-     * runPlayCallbacks_ is run these function will not be run. This allows us
-     * to differenciate between a terminated play and an actual call to play.
-     */
-    ;
-
-    _proto.runPlayTerminatedQueue_ = function runPlayTerminatedQueue_() {
-      var queue = this.playTerminatedQueue_.slice(0);
-      this.playTerminatedQueue_ = [];
-      queue.forEach(function (q) {
-        q();
-      });
-    }
-    /**
-     * When a callback to play is delayed we have to run these
-     * callbacks when play is actually called on the tech. This function
-     * runs the callbacks that were delayed and accepts the return value
-     * from the tech.
-     *
-     * @param {undefined|Promise} val
-     *        The return value from the tech.
-     */
-    ;
-
-    _proto.runPlayCallbacks_ = function runPlayCallbacks_(val) {
-      var callbacks = this.playCallbacks_.slice(0);
-      this.playCallbacks_ = []; // clear play terminatedQueue since we finished a real play
-
-      this.playTerminatedQueue_ = [];
-      callbacks.forEach(function (cb) {
-        cb(val);
-      });
-    }
-    /**
-     * Pause the video playback
-     *
-     * @return {Player}
-     *         A reference to the player object this function was called on
-     */
-    ;
-
-    _proto.pause = function pause() {
-      this.techCall_('pause');
-    }
-    /**
-     * Check if the player is paused or has yet to play
-     *
-     * @return {boolean}
-     *         - false: if the media is currently playing
-     *         - true: if media is not currently playing
-     */
-    ;
-
-    _proto.paused = function paused() {
-      // The initial state of paused should be true (in Safari it's actually false)
-      return this.techGet_('paused') === false ? false : true;
-    }
-    /**
-     * Get a TimeRange object representing the current ranges of time that the user
-     * has played.
-     *
-     * @return {TimeRange}
-     *         A time range object that represents all the increments of time that have
-     *         been played.
-     */
-    ;
-
-    _proto.played = function played() {
-      return this.techGet_('played') || createTimeRanges(0, 0);
-    }
-    /**
-     * Returns whether or not the user is "scrubbing". Scrubbing is
-     * when the user has clicked the progress bar handle and is
-     * dragging it along the progress bar.
-     *
-     * @param {boolean} [isScrubbing]
-     *        whether the user is or is not scrubbing
-     *
-     * @return {boolean}
-     *         The value of scrubbing when getting
-     */
-    ;
-
-    _proto.scrubbing = function scrubbing(isScrubbing) {
-      if (typeof isScrubbing === 'undefined') {
-        return this.scrubbing_;
-      }
-
-      this.scrubbing_ = !!isScrubbing;
-      this.techCall_('setScrubbing', this.scrubbing_);
-
-      if (isScrubbing) {
-        this.addClass('vjs-scrubbing');
-      } else {
-        this.removeClass('vjs-scrubbing');
-      }
-    }
-    /**
-     * Get or set the current time (in seconds)
-     *
-     * @param {number|string} [seconds]
-     *        The time to seek to in seconds
-     *
-     * @return {number}
-     *         - the current time in seconds when getting
-     */
-    ;
-
-    _proto.currentTime = function currentTime(seconds) {
-      if (typeof seconds !== 'undefined') {
-        if (seconds < 0) {
-          seconds = 0;
-        }
-
-        if (!this.isReady_ || this.changingSrc_ || !this.tech_ || !this.tech_.isReady_) {
-          this.cache_.initTime = seconds;
-          this.off('canplay', this.boundApplyInitTime_);
-          this.one('canplay', this.boundApplyInitTime_);
-          return;
-        }
-
-        this.techCall_('setCurrentTime', seconds);
-        this.cache_.initTime = 0;
-        return;
-      } // cache last currentTime and return. default to 0 seconds
-      //
-      // Caching the currentTime is meant to prevent a massive amount of reads on the tech's
-      // currentTime when scrubbing, but may not provide much performance benefit afterall.
-      // Should be tested. Also something has to read the actual current time or the cache will
-      // never get updated.
-
-
-      this.cache_.currentTime = this.techGet_('currentTime') || 0;
-      return this.cache_.currentTime;
-    }
-    /**
-     * Apply the value of initTime stored in cache as currentTime.
-     *
-     * @private
-     */
-    ;
-
-    _proto.applyInitTime_ = function applyInitTime_() {
-      this.currentTime(this.cache_.initTime);
-    }
-    /**
-     * Normally gets the length in time of the video in seconds;
-     * in all but the rarest use cases an argument will NOT be passed to the method
-     *
-     * > **NOTE**: The video must have started loading before the duration can be
-     * known, and depending on preload behaviour may not be known until the video starts
-     * playing.
-     *
-     * @fires Player#durationchange
-     *
-     * @param {number} [seconds]
-     *        The duration of the video to set in seconds
-     *
-     * @return {number}
-     *         - The duration of the video in seconds when getting
-     */
-    ;
-
-    _proto.duration = function duration(seconds) {
-      if (seconds === undefined) {
-        // return NaN if the duration is not known
-        return this.cache_.duration !== undefined ? this.cache_.duration : NaN;
-      }
-
-      seconds = parseFloat(seconds); // Standardize on Infinity for signaling video is live
-
-      if (seconds < 0) {
-        seconds = Infinity;
-      }
-
-      if (seconds !== this.cache_.duration) {
-        // Cache the last set value for optimized scrubbing (esp. Flash)
-        // TODO: Required for techs other than Flash?
-        this.cache_.duration = seconds;
-
-        if (seconds === Infinity) {
-          this.addClass('vjs-live');
-        } else {
-          this.removeClass('vjs-live');
-        }
-
-        if (!isNaN(seconds)) {
-          // Do not fire durationchange unless the duration value is known.
-          // @see [Spec]{@link https://www.w3.org/TR/2011/WD-html5-20110113/video.html#media-element-load-algorithm}
-
-          /**
-           * @event Player#durationchange
-           * @type {EventTarget~Event}
-           */
-          this.trigger('durationchange');
-        }
-      }
-    }
-    /**
-     * Calculates how much time is left in the video. Not part
-     * of the native video API.
-     *
-     * @return {number}
-     *         The time remaining in seconds
-     */
-    ;
-
-    _proto.remainingTime = function remainingTime() {
-      return this.duration() - this.currentTime();
-    }
-    /**
-     * A remaining time function that is intented to be used when
-     * the time is to be displayed directly to the user.
-     *
-     * @return {number}
-     *         The rounded time remaining in seconds
-     */
-    ;
-
-    _proto.remainingTimeDisplay = function remainingTimeDisplay() {
-      return Math.floor(this.duration()) - Math.floor(this.currentTime());
-    } //
-    // Kind of like an array of portions of the video that have been downloaded.
-
-    /**
-     * Get a TimeRange object with an array of the times of the video
-     * that have been downloaded. If you just want the percent of the
-     * video that's been downloaded, use bufferedPercent.
-     *
-     * @see [Buffered Spec]{@link http://dev.w3.org/html5/spec/video.html#dom-media-buffered}
-     *
-     * @return {TimeRange}
-     *         A mock TimeRange object (following HTML spec)
-     */
-    ;
-
-    _proto.buffered = function buffered() {
-      var buffered = this.techGet_('buffered');
-
-      if (!buffered || !buffered.length) {
-        buffered = createTimeRanges(0, 0);
-      }
-
-      return buffered;
-    }
-    /**
-     * Get the percent (as a decimal) of the video that's been downloaded.
-     * This method is not a part of the native HTML video API.
-     *
-     * @return {number}
-     *         A decimal between 0 and 1 representing the percent
-     *         that is buffered 0 being 0% and 1 being 100%
-     */
-    ;
-
-    _proto.bufferedPercent = function bufferedPercent$1() {
-      return bufferedPercent(this.buffered(), this.duration());
-    }
-    /**
-     * Get the ending time of the last buffered time range
-     * This is used in the progress bar to encapsulate all time ranges.
-     *
-     * @return {number}
-     *         The end of the last buffered time range
-     */
-    ;
-
-    _proto.bufferedEnd = function bufferedEnd() {
-      var buffered = this.buffered();
-      var duration = this.duration();
-      var end = buffered.end(buffered.length - 1);
-
-      if (end > duration) {
-        end = duration;
-      }
-
-      return end;
-    }
-    /**
-     * Get or set the current volume of the media
-     *
-     * @param  {number} [percentAsDecimal]
-     *         The new volume as a decimal percent:
-     *         - 0 is muted/0%/off
-     *         - 1.0 is 100%/full
-     *         - 0.5 is half volume or 50%
-     *
-     * @return {number}
-     *         The current volume as a percent when getting
-     */
-    ;
-
-    _proto.volume = function volume(percentAsDecimal) {
-      var vol;
-
-      if (percentAsDecimal !== undefined) {
-        // Force value to between 0 and 1
-        vol = Math.max(0, Math.min(1, parseFloat(percentAsDecimal)));
-        this.cache_.volume = vol;
-        this.techCall_('setVolume', vol);
-
-        if (vol > 0) {
-          this.lastVolume_(vol);
-        }
-
-        return;
-      } // Default to 1 when returning current volume.
-
-
-      vol = parseFloat(this.techGet_('volume'));
-      return isNaN(vol) ? 1 : vol;
-    }
-    /**
-     * Get the current muted state, or turn mute on or off
-     *
-     * @param {boolean} [muted]
-     *        - true to mute
-     *        - false to unmute
-     *
-     * @return {boolean}
-     *         - true if mute is on and getting
-     *         - false if mute is off and getting
-     */
-    ;
-
-    _proto.muted = function muted(_muted) {
-      if (_muted !== undefined) {
-        this.techCall_('setMuted', _muted);
-        return;
-      }
-
-      return this.techGet_('muted') || false;
-    }
-    /**
-     * Get the current defaultMuted state, or turn defaultMuted on or off. defaultMuted
-     * indicates the state of muted on initial playback.
-     *
-     * ```js
-     *   var myPlayer = videojs('some-player-id');
-     *
-     *   myPlayer.src("http://www.example.com/path/to/video.mp4");
-     *
-     *   // get, should be false
-     *   console.log(myPlayer.defaultMuted());
-     *   // set to true
-     *   myPlayer.defaultMuted(true);
-     *   // get should be true
-     *   console.log(myPlayer.defaultMuted());
-     * ```
-     *
-     * @param {boolean} [defaultMuted]
-     *        - true to mute
-     *        - false to unmute
-     *
-     * @return {boolean|Player}
-     *         - true if defaultMuted is on and getting
-     *         - false if defaultMuted is off and getting
-     *         - A reference to the current player when setting
-     */
-    ;
-
-    _proto.defaultMuted = function defaultMuted(_defaultMuted) {
-      if (_defaultMuted !== undefined) {
-        return this.techCall_('setDefaultMuted', _defaultMuted);
-      }
-
-      return this.techGet_('defaultMuted') || false;
-    }
-    /**
-     * Get the last volume, or set it
-     *
-     * @param  {number} [percentAsDecimal]
-     *         The new last volume as a decimal percent:
-     *         - 0 is muted/0%/off
-     *         - 1.0 is 100%/full
-     *         - 0.5 is half volume or 50%
-     *
-     * @return {number}
-     *         the current value of lastVolume as a percent when getting
-     *
-     * @private
-     */
-    ;
-
-    _proto.lastVolume_ = function lastVolume_(percentAsDecimal) {
-      if (percentAsDecimal !== undefined && percentAsDecimal !== 0) {
-        this.cache_.lastVolume = percentAsDecimal;
-        return;
-      }
-
-      return this.cache_.lastVolume;
-    }
-    /**
-     * Check if current tech can support native fullscreen
-     * (e.g. with built in controls like iOS)
-     *
-     * @return {boolean}
-     *         if native fullscreen is supported
-     */
-    ;
-
-    _proto.supportsFullScreen = function supportsFullScreen() {
-      return this.techGet_('supportsFullScreen') || false;
-    }
-    /**
-     * Check if the player is in fullscreen mode or tell the player that it
-     * is or is not in fullscreen mode.
-     *
-     * > NOTE: As of the latest HTML5 spec, isFullscreen is no longer an official
-     * property and instead document.fullscreenElement is used. But isFullscreen is
-     * still a valuable property for internal player workings.
-     *
-     * @param  {boolean} [isFS]
-     *         Set the players current fullscreen state
-     *
-     * @return {boolean}
-     *         - true if fullscreen is on and getting
-     *         - false if fullscreen is off and getting
-     */
-    ;
-
-    _proto.isFullscreen = function isFullscreen(isFS) {
-      if (isFS !== undefined) {
-        var oldValue = this.isFullscreen_;
-        this.isFullscreen_ = Boolean(isFS); // if we changed fullscreen state and we're in prefixed mode, trigger fullscreenchange
-        // this is the only place where we trigger fullscreenchange events for older browsers
-        // fullWindow mode is treated as a prefixed event and will get a fullscreenchange event as well
-
-        if (this.isFullscreen_ !== oldValue && this.fsApi_.prefixed) {
-          /**
-             * @event Player#fullscreenchange
-             * @type {EventTarget~Event}
-             */
-          this.trigger('fullscreenchange');
-        }
-
-        this.toggleFullscreenClass_();
-        return;
-      }
-
-      return this.isFullscreen_;
-    }
-    /**
-     * Increase the size of the video to full screen
-     * In some browsers, full screen is not supported natively, so it enters
-     * "full window mode", where the video fills the browser window.
-     * In browsers and devices that support native full screen, sometimes the
-     * browser's default controls will be shown, and not the Video.js custom skin.
-     * This includes most mobile devices (iOS, Android) and older versions of
-     * Safari.
-     *
-     * @param  {Object} [fullscreenOptions]
-     *         Override the player fullscreen options
-     *
-     * @fires Player#fullscreenchange
-     */
-    ;
-
-    _proto.requestFullscreen = function requestFullscreen(fullscreenOptions) {
-      var PromiseClass = this.options_.Promise || window.Promise;
-
-      if (PromiseClass) {
-        var self = this;
-        return new PromiseClass(function (resolve, reject) {
-          function offHandler() {
-            self.off('fullscreenerror', errorHandler);
-            self.off('fullscreenchange', changeHandler);
-          }
-
-          function changeHandler() {
-            offHandler();
-            resolve();
-          }
-
-          function errorHandler(e, err) {
-            offHandler();
-            reject(err);
-          }
-
-          self.one('fullscreenchange', changeHandler);
-          self.one('fullscreenerror', errorHandler);
-          var promise = self.requestFullscreenHelper_(fullscreenOptions);
-
-          if (promise) {
-            promise.then(offHandler, offHandler);
-            promise.then(resolve, reject);
-          }
-        });
-      }
-
-      return this.requestFullscreenHelper_();
+        // on the first sourceset, we need to revert our changes
+        tech.one('sourceset', el.resetSourceWatch_);
     };
 
-    _proto.requestFullscreenHelper_ = function requestFullscreenHelper_(fullscreenOptions) {
-      var _this12 = this;
-
-      var fsOptions; // Only pass fullscreen options to requestFullscreen in spec-compliant browsers.
-      // Use defaults or player configured option unless passed directly to this method.
-
-      if (!this.fsApi_.prefixed) {
-        fsOptions = this.options_.fullscreen && this.options_.fullscreen.options || {};
-
-        if (fullscreenOptions !== undefined) {
-          fsOptions = fullscreenOptions;
-        }
-      } // This method works as follows:
-      // 1. if a fullscreen api is available, use it
-      //   1. call requestFullscreen with potential options
-      //   2. if we got a promise from above, use it to update isFullscreen()
-      // 2. otherwise, if the tech supports fullscreen, call `enterFullScreen` on it.
-      //   This is particularly used for iPhone, older iPads, and non-safari browser on iOS.
-      // 3. otherwise, use "fullWindow" mode
-
-
-      if (this.fsApi_.requestFullscreen) {
-        var promise = this.el_[this.fsApi_.requestFullscreen](fsOptions);
-
-        if (promise) {
-          promise.then(function () {
-            return _this12.isFullscreen(true);
-          }, function () {
-            return _this12.isFullscreen(false);
-          });
-        }
-
-        return promise;
-      } else if (this.tech_.supportsFullScreen() && !this.options_.preferFullWindow === true) {
-        // we can't take the video.js controls fullscreen but we can go fullscreen
-        // with native controls
-        this.techCall_('enterFullScreen');
-      } else {
-        // fullscreen isn't supported so we'll just stretch the video element to
-        // fill the viewport
-        this.enterFullWindow();
-      }
-    }
     /**
-     * Return the video to its normal size after having been in full screen mode
-     *
-     * @fires Player#fullscreenchange
+     * our implementation of a `src` descriptor for browsers
+     * that do not have one
      */
-    ;
+    const srcDescriptorPolyfill = Object.defineProperty({}, 'src', {
+        get() {
+            if (this.hasAttribute('src')) {
+                return getAbsoluteURL(window.Element.prototype.getAttribute.call(this, 'src'));
+            }
+            return '';
+        },
+        set(v) {
+            window.Element.prototype.setAttribute.call(this, 'src', v);
+            return v;
+        }
+    });
+    const getSrcDescriptor = tech => getDescriptor([tech.el(), window.HTMLMediaElement.prototype, srcDescriptorPolyfill], 'src');
 
-    _proto.exitFullscreen = function exitFullscreen() {
-      var PromiseClass = this.options_.Promise || window.Promise;
+    /**
+     * setup `sourceset` handling on the `Html5` tech. This function
+     * patches the following element properties/functions:
+     *
+     * - `src` - to determine when `src` is set
+     * - `setAttribute()` - to determine when `src` is set
+     * - `load()` - this re-triggers the source selection algorithm, and can
+     *              cause a sourceset.
+     *
+     * If there is no source when we are adding `sourceset` support or during a `load()`
+     * we also patch the functions listed in `firstSourceWatch`.
+     *
+     * @param {Html5} tech
+     *        The tech to patch
+     */
+    const setupSourceset = function (tech) {
+        if (!tech.featuresSourceset) {
+            return;
+        }
+        const el = tech.el();
 
-      if (PromiseClass) {
-        var self = this;
-        return new PromiseClass(function (resolve, reject) {
-          function offHandler() {
-            self.off('fullscreenerror', errorHandler);
-            self.off('fullscreenchange', changeHandler);
-          }
+        // make sure sourceset isn't setup twice.
+        if (el.resetSourceset_) {
+            return;
+        }
+        const srcDescriptor = getSrcDescriptor(tech);
+        const oldSetAttribute = el.setAttribute;
+        const oldLoad = el.load;
+        Object.defineProperty(el, 'src', merge$2(srcDescriptor, {
+            set: v => {
+                const retval = srcDescriptor.set.call(el, v);
 
-          function changeHandler() {
-            offHandler();
-            resolve();
-          }
+                // we use the getter here to get the actual value set on src
+                tech.triggerSourceset(el.src);
+                return retval;
+            }
+        }));
+        el.setAttribute = (n, v) => {
+            const retval = oldSetAttribute.call(el, n, v);
+            if (/src/i.test(n)) {
+                tech.triggerSourceset(el.src);
+            }
+            return retval;
+        };
+        el.load = () => {
+            const retval = oldLoad.call(el);
 
-          function errorHandler(e, err) {
-            offHandler();
-            reject(err);
-          }
-
-          self.one('fullscreenchange', changeHandler);
-          self.one('fullscreenerror', errorHandler);
-          var promise = self.exitFullscreenHelper_();
-
-          if (promise) {
-            promise.then(offHandler, offHandler); // map the promise to our resolve/reject methods
-
-            promise.then(resolve, reject);
-          }
-        });
-      }
-
-      return this.exitFullscreenHelper_();
+            // if load was called, but there was no source to fire
+            // sourceset on. We have to watch for a source append
+            // as that can trigger a `sourceset` when the media element
+            // has no source
+            if (!sourcesetLoad(tech)) {
+                tech.triggerSourceset('');
+                firstSourceWatch(tech);
+            }
+            return retval;
+        };
+        if (el.currentSrc) {
+            tech.triggerSourceset(el.currentSrc);
+        } else if (!sourcesetLoad(tech)) {
+            firstSourceWatch(tech);
+        }
+        el.resetSourceset_ = () => {
+            el.resetSourceset_ = null;
+            el.load = oldLoad;
+            el.setAttribute = oldSetAttribute;
+            Object.defineProperty(el, 'src', srcDescriptor);
+            if (el.resetSourceWatch_) {
+                el.resetSourceWatch_();
+            }
+        };
     };
 
-    _proto.exitFullscreenHelper_ = function exitFullscreenHelper_() {
-      var _this13 = this;
+    /**
+     * @file html5.js
+     */
 
-      if (this.fsApi_.requestFullscreen) {
-        var promise = document[this.fsApi_.exitFullscreen]();
+    /**
+     * HTML5 Media Controller - Wrapper for HTML5 Media API
+     *
+     * @mixes Tech~SourceHandlerAdditions
+     * @extends Tech
+     */
+    class Html5 extends Tech {
+        /**
+         * Create an instance of this Tech.
+         *
+         * @param {Object} [options]
+         *        The key/value store of player options.
+         *
+         * @param {Function} [ready]
+         *        Callback function to call when the `HTML5` Tech is ready.
+         */
+        constructor(options, ready) {
+            super(options, ready);
+            const source = options.source;
+            let crossoriginTracks = false;
+            this.featuresVideoFrameCallback = this.featuresVideoFrameCallback && this.el_.tagName === 'VIDEO';
 
-        if (promise) {
-          // we're splitting the promise here, so, we want to catch the
-          // potential error so that this chain doesn't have unhandled errors
-          silencePromise(promise.then(function () {
-            return _this13.isFullscreen(false);
-          }));
+            // Set the source if one is provided
+            // 1) Check if the source is new (if not, we want to keep the original so playback isn't interrupted)
+            // 2) Check to see if the network state of the tag was failed at init, and if so, reset the source
+            // anyway so the error gets fired.
+            if (source && (this.el_.currentSrc !== source.src || options.tag && options.tag.initNetworkState_ === 3)) {
+                this.setSource(source);
+            } else {
+                this.handleLateInit_(this.el_);
+            }
+
+            // setup sourceset after late sourceset/init
+            if (options.enableSourceset) {
+                this.setupSourcesetHandling_();
+            }
+            this.isScrubbing_ = false;
+            if (this.el_.hasChildNodes()) {
+                const nodes = this.el_.childNodes;
+                let nodesLength = nodes.length;
+                const removeNodes = [];
+                while (nodesLength--) {
+                    const node = nodes[nodesLength];
+                    const nodeName = node.nodeName.toLowerCase();
+                    if (nodeName === 'track') {
+                        if (!this.featuresNativeTextTracks) {
+                            // Empty video tag tracks so the built-in player doesn't use them also.
+                            // This may not be fast enough to stop HTML5 browsers from reading the tags
+                            // so we'll need to turn off any default tracks if we're manually doing
+                            // captions and subtitles. videoElement.textTracks
+                            removeNodes.push(node);
+                        } else {
+                            // store HTMLTrackElement and TextTrack to remote list
+                            this.remoteTextTrackEls().addTrackElement_(node);
+                            this.remoteTextTracks().addTrack(node.track);
+                            this.textTracks().addTrack(node.track);
+                            if (!crossoriginTracks && !this.el_.hasAttribute('crossorigin') && isCrossOrigin(node.src)) {
+                                crossoriginTracks = true;
+                            }
+                        }
+                    }
+                }
+                for (let i = 0; i < removeNodes.length; i++) {
+                    this.el_.removeChild(removeNodes[i]);
+                }
+            }
+            this.proxyNativeTracks_();
+            if (this.featuresNativeTextTracks && crossoriginTracks) {
+                log$1.warn('Text Tracks are being loaded from another origin but the crossorigin attribute isn\'t used.\n' + 'This may prevent text tracks from loading.');
+            }
+
+            // prevent iOS Safari from disabling metadata text tracks during native playback
+            this.restoreMetadataTracksInIOSNativePlayer_();
+
+            // Determine if native controls should be used
+            // Our goal should be to get the custom controls on mobile solid everywhere
+            // so we can remove this all together. Right now this will block custom
+            // controls on touch enabled laptops like the Chrome Pixel
+            if ((TOUCH_ENABLED || IS_IPHONE) && options.nativeControlsForTouch === true) {
+                this.setControls(true);
+            }
+
+            // on iOS, we want to proxy `webkitbeginfullscreen` and `webkitendfullscreen`
+            // into a `fullscreenchange` event
+            this.proxyWebkitFullscreen_();
+            this.triggerReady();
         }
 
-        return promise;
-      } else if (this.tech_.supportsFullScreen() && !this.options_.preferFullWindow === true) {
-        this.techCall_('exitFullScreen');
-      } else {
-        this.exitFullWindow();
-      }
-    }
-    /**
-     * When fullscreen isn't supported we can stretch the
-     * video container to as wide as the browser will let us.
-     *
-     * @fires Player#enterFullWindow
-     */
-    ;
+        /**
+         * Dispose of `HTML5` media element and remove all tracks.
+         */
+        dispose() {
+            if (this.el_ && this.el_.resetSourceset_) {
+                this.el_.resetSourceset_();
+            }
+            Html5.disposeMediaElement(this.el_);
+            this.options_ = null;
 
-    _proto.enterFullWindow = function enterFullWindow() {
-      this.isFullscreen(true);
-      this.isFullWindow = true; // Storing original doc overflow value to return to when fullscreen is off
-
-      this.docOrigOverflow = document.documentElement.style.overflow; // Add listener for esc key to exit fullscreen
-
-      on(document, 'keydown', this.boundFullWindowOnEscKey_); // Hide any scroll bars
-
-      document.documentElement.style.overflow = 'hidden'; // Apply fullscreen styles
-
-      addClass(document.body, 'vjs-full-window');
-      /**
-       * @event Player#enterFullWindow
-       * @type {EventTarget~Event}
-       */
-
-      this.trigger('enterFullWindow');
-    }
-    /**
-     * Check for call to either exit full window or
-     * full screen on ESC key
-     *
-     * @param {string} event
-     *        Event to check for key press
-     */
-    ;
-
-    _proto.fullWindowOnEscKey = function fullWindowOnEscKey(event) {
-      if (keycode.isEventKey(event, 'Esc')) {
-        if (this.isFullscreen() === true) {
-          if (!this.isFullWindow) {
-            this.exitFullscreen();
-          } else {
-            this.exitFullWindow();
-          }
+            // tech will handle clearing of the emulated track list
+            super.dispose();
+        }
+
+        /**
+         * Modify the media element so that we can detect when
+         * the source is changed. Fires `sourceset` just after the source has changed
+         */
+        setupSourcesetHandling_() {
+            setupSourceset(this);
+        }
+
+        /**
+         * When a captions track is enabled in the iOS Safari native player, all other
+         * tracks are disabled (including metadata tracks), which nulls all of their
+         * associated cue points. This will restore metadata tracks to their pre-fullscreen
+         * state in those cases so that cue points are not needlessly lost.
+         *
+         * @private
+         */
+        restoreMetadataTracksInIOSNativePlayer_() {
+            const textTracks = this.textTracks();
+            let metadataTracksPreFullscreenState;
+
+            // captures a snapshot of every metadata track's current state
+            const takeMetadataTrackSnapshot = () => {
+                metadataTracksPreFullscreenState = [];
+                for (let i = 0; i < textTracks.length; i++) {
+                    const track = textTracks[i];
+                    if (track.kind === 'metadata') {
+                        metadataTracksPreFullscreenState.push({
+                            track,
+                            storedMode: track.mode
+                        });
+                    }
+                }
+            };
+
+            // snapshot each metadata track's initial state, and update the snapshot
+            // each time there is a track 'change' event
+            takeMetadataTrackSnapshot();
+            textTracks.addEventListener('change', takeMetadataTrackSnapshot);
+            this.on('dispose', () => textTracks.removeEventListener('change', takeMetadataTrackSnapshot));
+            const restoreTrackMode = () => {
+                for (let i = 0; i < metadataTracksPreFullscreenState.length; i++) {
+                    const storedTrack = metadataTracksPreFullscreenState[i];
+                    if (storedTrack.track.mode === 'disabled' && storedTrack.track.mode !== storedTrack.storedMode) {
+                        storedTrack.track.mode = storedTrack.storedMode;
+                    }
+                }
+                // we only want this handler to be executed on the first 'change' event
+                textTracks.removeEventListener('change', restoreTrackMode);
+            };
+
+            // when we enter fullscreen playback, stop updating the snapshot and
+            // restore all track modes to their pre-fullscreen state
+            this.on('webkitbeginfullscreen', () => {
+                textTracks.removeEventListener('change', takeMetadataTrackSnapshot);
+
+                // remove the listener before adding it just in case it wasn't previously removed
+                textTracks.removeEventListener('change', restoreTrackMode);
+                textTracks.addEventListener('change', restoreTrackMode);
+            });
+
+            // start updating the snapshot again after leaving fullscreen
+            this.on('webkitendfullscreen', () => {
+                // remove the listener before adding it just in case it wasn't previously removed
+                textTracks.removeEventListener('change', takeMetadataTrackSnapshot);
+                textTracks.addEventListener('change', takeMetadataTrackSnapshot);
+
+                // remove the restoreTrackMode handler in case it wasn't triggered during fullscreen playback
+                textTracks.removeEventListener('change', restoreTrackMode);
+            });
+        }
+
+        /**
+         * Attempt to force override of tracks for the given type
+         *
+         * @param {string} type - Track type to override, possible values include 'Audio',
+         * 'Video', and 'Text'.
+         * @param {boolean} override - If set to true native audio/video will be overridden,
+         * otherwise native audio/video will potentially be used.
+         * @private
+         */
+        overrideNative_(type, override) {
+            // If there is no behavioral change don't add/remove listeners
+            if (override !== this[`featuresNative${type}Tracks`]) {
+                return;
+            }
+            const lowerCaseType = type.toLowerCase();
+            if (this[`${lowerCaseType}TracksListeners_`]) {
+                Object.keys(this[`${lowerCaseType}TracksListeners_`]).forEach(eventName => {
+                    const elTracks = this.el()[`${lowerCaseType}Tracks`];
+                    elTracks.removeEventListener(eventName, this[`${lowerCaseType}TracksListeners_`][eventName]);
+                });
+            }
+            this[`featuresNative${type}Tracks`] = !override;
+            this[`${lowerCaseType}TracksListeners_`] = null;
+            this.proxyNativeTracksForType_(lowerCaseType);
+        }
+
+        /**
+         * Attempt to force override of native audio tracks.
+         *
+         * @param {boolean} override - If set to true native audio will be overridden,
+         * otherwise native audio will potentially be used.
+         */
+        overrideNativeAudioTracks(override) {
+            this.overrideNative_('Audio', override);
+        }
+
+        /**
+         * Attempt to force override of native video tracks.
+         *
+         * @param {boolean} override - If set to true native video will be overridden,
+         * otherwise native video will potentially be used.
+         */
+        overrideNativeVideoTracks(override) {
+            this.overrideNative_('Video', override);
+        }
+
+        /**
+         * Proxy native track list events for the given type to our track
+         * lists if the browser we are playing in supports that type of track list.
+         *
+         * @param {string} name - Track type; values include 'audio', 'video', and 'text'
+         * @private
+         */
+        proxyNativeTracksForType_(name) {
+            const props = NORMAL[name];
+            const elTracks = this.el()[props.getterName];
+            const techTracks = this[props.getterName]();
+            if (!this[`featuresNative${props.capitalName}Tracks`] || !elTracks || !elTracks.addEventListener) {
+                return;
+            }
+            const listeners = {
+                change: e => {
+                    const event = {
+                        type: 'change',
+                        target: techTracks,
+                        currentTarget: techTracks,
+                        srcElement: techTracks
+                    };
+                    techTracks.trigger(event);
+
+                    // if we are a text track change event, we should also notify the
+                    // remote text track list. This can potentially cause a false positive
+                    // if we were to get a change event on a non-remote track and
+                    // we triggered the event on the remote text track list which doesn't
+                    // contain that track. However, best practices mean looping through the
+                    // list of tracks and searching for the appropriate mode value, so,
+                    // this shouldn't pose an issue
+                    if (name === 'text') {
+                        this[REMOTE.remoteText.getterName]().trigger(event);
+                    }
+                },
+                addtrack(e) {
+                    techTracks.addTrack(e.track);
+                },
+                removetrack(e) {
+                    techTracks.removeTrack(e.track);
+                }
+            };
+            const removeOldTracks = function () {
+                const removeTracks = [];
+                for (let i = 0; i < techTracks.length; i++) {
+                    let found = false;
+                    for (let j = 0; j < elTracks.length; j++) {
+                        if (elTracks[j] === techTracks[i]) {
+                            found = true;
+                            break;
+                        }
+                    }
+                    if (!found) {
+                        removeTracks.push(techTracks[i]);
+                    }
+                }
+                while (removeTracks.length) {
+                    techTracks.removeTrack(removeTracks.shift());
+                }
+            };
+            this[props.getterName + 'Listeners_'] = listeners;
+            Object.keys(listeners).forEach(eventName => {
+                const listener = listeners[eventName];
+                elTracks.addEventListener(eventName, listener);
+                this.on('dispose', e => elTracks.removeEventListener(eventName, listener));
+            });
+
+            // Remove (native) tracks that are not used anymore
+            this.on('loadstart', removeOldTracks);
+            this.on('dispose', e => this.off('loadstart', removeOldTracks));
+        }
+
+        /**
+         * Proxy all native track list events to our track lists if the browser we are playing
+         * in supports that type of track list.
+         *
+         * @private
+         */
+        proxyNativeTracks_() {
+            NORMAL.names.forEach(name => {
+                this.proxyNativeTracksForType_(name);
+            });
+        }
+
+        /**
+         * Create the `Html5` Tech's DOM element.
+         *
+         * @return {Element}
+         *         The element that gets created.
+         */
+        createEl() {
+            let el = this.options_.tag;
+
+            // Check if this browser supports moving the element into the box.
+            // On the iPhone video will break if you move the element,
+            // So we have to create a brand new element.
+            // If we ingested the player div, we do not need to move the media element.
+            if (!el || !(this.options_.playerElIngest || this.movingMediaElementInDOM)) {
+                // If the original tag is still there, clone and remove it.
+                if (el) {
+                    const clone = el.cloneNode(true);
+                    if (el.parentNode) {
+                        el.parentNode.insertBefore(clone, el);
+                    }
+                    Html5.disposeMediaElement(el);
+                    el = clone;
+                } else {
+                    el = document.createElement('video');
+
+                    // determine if native controls should be used
+                    const tagAttributes = this.options_.tag && getAttributes(this.options_.tag);
+                    const attributes = merge$2({}, tagAttributes);
+                    if (!TOUCH_ENABLED || this.options_.nativeControlsForTouch !== true) {
+                        delete attributes.controls;
+                    }
+                    setAttributes(el, Object.assign(attributes, {
+                        id: this.options_.techId,
+                        class: 'vjs-tech'
+                    }));
+                }
+                el.playerId = this.options_.playerId;
+            }
+            if (typeof this.options_.preload !== 'undefined') {
+                setAttribute(el, 'preload', this.options_.preload);
+            }
+            if (this.options_.disablePictureInPicture !== undefined) {
+                el.disablePictureInPicture = this.options_.disablePictureInPicture;
+            }
+
+            // Update specific tag settings, in case they were overridden
+            // `autoplay` has to be *last* so that `muted` and `playsinline` are present
+            // when iOS/Safari or other browsers attempt to autoplay.
+            const settingsAttrs = ['loop', 'muted', 'playsinline', 'autoplay'];
+            for (let i = 0; i < settingsAttrs.length; i++) {
+                const attr = settingsAttrs[i];
+                const value = this.options_[attr];
+                if (typeof value !== 'undefined') {
+                    if (value) {
+                        setAttribute(el, attr, attr);
+                    } else {
+                        removeAttribute(el, attr);
+                    }
+                    el[attr] = value;
+                }
+            }
+            return el;
+        }
+
+        /**
+         * This will be triggered if the loadstart event has already fired, before videojs was
+         * ready. Two known examples of when this can happen are:
+         * 1. If we're loading the playback object after it has started loading
+         * 2. The media is already playing the (often with autoplay on) then
+         *
+         * This function will fire another loadstart so that videojs can catchup.
+         *
+         * @fires Tech#loadstart
+         *
+         * @return {undefined}
+         *         returns nothing.
+         */
+        handleLateInit_(el) {
+            if (el.networkState === 0 || el.networkState === 3) {
+                // The video element hasn't started loading the source yet
+                // or didn't find a source
+                return;
+            }
+            if (el.readyState === 0) {
+                // NetworkState is set synchronously BUT loadstart is fired at the
+                // end of the current stack, usually before setInterval(fn, 0).
+                // So at this point we know loadstart may have already fired or is
+                // about to fire, and either way the player hasn't seen it yet.
+                // We don't want to fire loadstart prematurely here and cause a
+                // double loadstart so we'll wait and see if it happens between now
+                // and the next loop, and fire it if not.
+                // HOWEVER, we also want to make sure it fires before loadedmetadata
+                // which could also happen between now and the next loop, so we'll
+                // watch for that also.
+                let loadstartFired = false;
+                const setLoadstartFired = function () {
+                    loadstartFired = true;
+                };
+                this.on('loadstart', setLoadstartFired);
+                const triggerLoadstart = function () {
+                    // We did miss the original loadstart. Make sure the player
+                    // sees loadstart before loadedmetadata
+                    if (!loadstartFired) {
+                        this.trigger('loadstart');
+                    }
+                };
+                this.on('loadedmetadata', triggerLoadstart);
+                this.ready(function () {
+                    this.off('loadstart', setLoadstartFired);
+                    this.off('loadedmetadata', triggerLoadstart);
+                    if (!loadstartFired) {
+                        // We did miss the original native loadstart. Fire it now.
+                        this.trigger('loadstart');
+                    }
+                });
+                return;
+            }
+
+            // From here on we know that loadstart already fired and we missed it.
+            // The other readyState events aren't as much of a problem if we double
+            // them, so not going to go to as much trouble as loadstart to prevent
+            // that unless we find reason to.
+            const eventsToTrigger = ['loadstart'];
+
+            // loadedmetadata: newly equal to HAVE_METADATA (1) or greater
+            eventsToTrigger.push('loadedmetadata');
+
+            // loadeddata: newly increased to HAVE_CURRENT_DATA (2) or greater
+            if (el.readyState >= 2) {
+                eventsToTrigger.push('loadeddata');
+            }
+
+            // canplay: newly increased to HAVE_FUTURE_DATA (3) or greater
+            if (el.readyState >= 3) {
+                eventsToTrigger.push('canplay');
+            }
+
+            // canplaythrough: newly equal to HAVE_ENOUGH_DATA (4)
+            if (el.readyState >= 4) {
+                eventsToTrigger.push('canplaythrough');
+            }
+
+            // We still need to give the player time to add event listeners
+            this.ready(function () {
+                eventsToTrigger.forEach(function (type) {
+                    this.trigger(type);
+                }, this);
+            });
+        }
+
+        /**
+         * Set whether we are scrubbing or not.
+         * This is used to decide whether we should use `fastSeek` or not.
+         * `fastSeek` is used to provide trick play on Safari browsers.
+         *
+         * @param {boolean} isScrubbing
+         *                  - true for we are currently scrubbing
+         *                  - false for we are no longer scrubbing
+         */
+        setScrubbing(isScrubbing) {
+            this.isScrubbing_ = isScrubbing;
+        }
+
+        /**
+         * Get whether we are scrubbing or not.
+         *
+         * @return {boolean} isScrubbing
+         *                  - true for we are currently scrubbing
+         *                  - false for we are no longer scrubbing
+         */
+        scrubbing() {
+            return this.isScrubbing_;
+        }
+
+        /**
+         * Set current time for the `HTML5` tech.
+         *
+         * @param {number} seconds
+         *        Set the current time of the media to this.
+         */
+        setCurrentTime(seconds) {
+            try {
+                if (this.isScrubbing_ && this.el_.fastSeek && IS_ANY_SAFARI) {
+                    this.el_.fastSeek(seconds);
+                } else {
+                    this.el_.currentTime = seconds;
+                }
+            } catch (e) {
+                log$1(e, 'Video is not ready. (Video.js)');
+                // this.warning(VideoJS.warnings.videoNotReady);
+            }
+        }
+
+        /**
+         * Get the current duration of the HTML5 media element.
+         *
+         * @return {number}
+         *         The duration of the media or 0 if there is no duration.
+         */
+        duration() {
+            // Android Chrome will report duration as Infinity for VOD HLS until after
+            // playback has started, which triggers the live display erroneously.
+            // Return NaN if playback has not started and trigger a durationupdate once
+            // the duration can be reliably known.
+            if (this.el_.duration === Infinity && IS_ANDROID && IS_CHROME && this.el_.currentTime === 0) {
+                // Wait for the first `timeupdate` with currentTime > 0 - there may be
+                // several with 0
+                const checkProgress = () => {
+                    if (this.el_.currentTime > 0) {
+                        // Trigger durationchange for genuinely live video
+                        if (this.el_.duration === Infinity) {
+                            this.trigger('durationchange');
+                        }
+                        this.off('timeupdate', checkProgress);
+                    }
+                };
+                this.on('timeupdate', checkProgress);
+                return NaN;
+            }
+            return this.el_.duration || NaN;
+        }
+
+        /**
+         * Get the current width of the HTML5 media element.
+         *
+         * @return {number}
+         *         The width of the HTML5 media element.
+         */
+        width() {
+            return this.el_.offsetWidth;
+        }
+
+        /**
+         * Get the current height of the HTML5 media element.
+         *
+         * @return {number}
+         *         The height of the HTML5 media element.
+         */
+        height() {
+            return this.el_.offsetHeight;
+        }
+
+        /**
+         * Proxy iOS `webkitbeginfullscreen` and `webkitendfullscreen` into
+         * `fullscreenchange` event.
+         *
+         * @private
+         * @fires fullscreenchange
+         * @listens webkitendfullscreen
+         * @listens webkitbeginfullscreen
+         * @listens webkitbeginfullscreen
+         */
+        proxyWebkitFullscreen_() {
+            if (!('webkitDisplayingFullscreen' in this.el_)) {
+                return;
+            }
+            const endFn = function () {
+                this.trigger('fullscreenchange', {
+                    isFullscreen: false
+                });
+                // Safari will sometimes set controls on the videoelement when existing fullscreen.
+                if (this.el_.controls && !this.options_.nativeControlsForTouch && this.controls()) {
+                    this.el_.controls = false;
+                }
+            };
+            const beginFn = function () {
+                if ('webkitPresentationMode' in this.el_ && this.el_.webkitPresentationMode !== 'picture-in-picture') {
+                    this.one('webkitendfullscreen', endFn);
+                    this.trigger('fullscreenchange', {
+                        isFullscreen: true,
+                        // set a flag in case another tech triggers fullscreenchange
+                        nativeIOSFullscreen: true
+                    });
+                }
+            };
+            this.on('webkitbeginfullscreen', beginFn);
+            this.on('dispose', () => {
+                this.off('webkitbeginfullscreen', beginFn);
+                this.off('webkitendfullscreen', endFn);
+            });
+        }
+
+        /**
+         * Check if fullscreen is supported on the video el.
+         *
+         * @return {boolean}
+         *         - True if fullscreen is supported.
+         *         - False if fullscreen is not supported.
+         */
+        supportsFullScreen() {
+            return typeof this.el_.webkitEnterFullScreen === 'function';
+        }
+
+        /**
+         * Request that the `HTML5` Tech enter fullscreen.
+         */
+        enterFullScreen() {
+            const video = this.el_;
+            if (video.paused && video.networkState <= video.HAVE_METADATA) {
+                // attempt to prime the video element for programmatic access
+                // this isn't necessary on the desktop but shouldn't hurt
+                silencePromise(this.el_.play());
+
+                // playing and pausing synchronously during the transition to fullscreen
+                // can get iOS ~6.1 devices into a play/pause loop
+                this.setTimeout(function () {
+                    video.pause();
+                    try {
+                        video.webkitEnterFullScreen();
+                    } catch (e) {
+                        this.trigger('fullscreenerror', e);
+                    }
+                }, 0);
+            } else {
+                try {
+                    video.webkitEnterFullScreen();
+                } catch (e) {
+                    this.trigger('fullscreenerror', e);
+                }
+            }
+        }
+
+        /**
+         * Request that the `HTML5` Tech exit fullscreen.
+         */
+        exitFullScreen() {
+            if (!this.el_.webkitDisplayingFullscreen) {
+                this.trigger('fullscreenerror', new Error('The video is not fullscreen'));
+                return;
+            }
+            this.el_.webkitExitFullScreen();
+        }
+
+        /**
+         * Create a floating video window always on top of other windows so that users may
+         * continue consuming media while they interact with other content sites, or
+         * applications on their device.
+         *
+         * @see [Spec]{@link https://wicg.github.io/picture-in-picture}
+         *
+         * @return {Promise}
+         *         A promise with a Picture-in-Picture window.
+         */
+        requestPictureInPicture() {
+            return this.el_.requestPictureInPicture();
+        }
+
+        /**
+         * Native requestVideoFrameCallback if supported by browser/tech, or fallback
+         * Don't use rVCF on Safari when DRM is playing, as it doesn't fire
+         * Needs to be checked later than the constructor
+         * This will be a false positive for clear sources loaded after a Fairplay source
+         *
+         * @param {function} cb function to call
+         * @return {number} id of request
+         */
+        requestVideoFrameCallback(cb) {
+            if (this.featuresVideoFrameCallback && !this.el_.webkitKeys) {
+                return this.el_.requestVideoFrameCallback(cb);
+            }
+            return super.requestVideoFrameCallback(cb);
+        }
+
+        /**
+         * Native or fallback requestVideoFrameCallback
+         *
+         * @param {number} id request id to cancel
+         */
+        cancelVideoFrameCallback(id) {
+            if (this.featuresVideoFrameCallback && !this.el_.webkitKeys) {
+                this.el_.cancelVideoFrameCallback(id);
+            } else {
+                super.cancelVideoFrameCallback(id);
+            }
+        }
+
+        /**
+         * A getter/setter for the `Html5` Tech's source object.
+         * > Note: Please use {@link Html5#setSource}
+         *
+         * @param {Tech~SourceObject} [src]
+         *        The source object you want to set on the `HTML5` techs element.
+         *
+         * @return {Tech~SourceObject|undefined}
+         *         - The current source object when a source is not passed in.
+         *         - undefined when setting
+         *
+         * @deprecated Since version 5.
+         */
+        src(src) {
+            if (src === undefined) {
+                return this.el_.src;
+            }
+
+            // Setting src through `src` instead of `setSrc` will be deprecated
+            this.setSrc(src);
+        }
+
+        /**
+         * Reset the tech by removing all sources and then calling
+         * {@link Html5.resetMediaElement}.
+         */
+        reset() {
+            Html5.resetMediaElement(this.el_);
+        }
+
+        /**
+         * Get the current source on the `HTML5` Tech. Falls back to returning the source from
+         * the HTML5 media element.
+         *
+         * @return {Tech~SourceObject}
+         *         The current source object from the HTML5 tech. With a fallback to the
+         *         elements source.
+         */
+        currentSrc() {
+            if (this.currentSource_) {
+                return this.currentSource_.src;
+            }
+            return this.el_.currentSrc;
+        }
+
+        /**
+         * Set controls attribute for the HTML5 media Element.
+         *
+         * @param {string} val
+         *        Value to set the controls attribute to
+         */
+        setControls(val) {
+            this.el_.controls = !!val;
+        }
+
+        /**
+         * Create and returns a remote {@link TextTrack} object.
+         *
+         * @param {string} kind
+         *        `TextTrack` kind (subtitles, captions, descriptions, chapters, or metadata)
+         *
+         * @param {string} [label]
+         *        Label to identify the text track
+         *
+         * @param {string} [language]
+         *        Two letter language abbreviation
+         *
+         * @return {TextTrack}
+         *         The TextTrack that gets created.
+         */
+        addTextTrack(kind, label, language) {
+            if (!this.featuresNativeTextTracks) {
+                return super.addTextTrack(kind, label, language);
+            }
+            return this.el_.addTextTrack(kind, label, language);
+        }
+
+        /**
+         * Creates either native TextTrack or an emulated TextTrack depending
+         * on the value of `featuresNativeTextTracks`
+         *
+         * @param {Object} options
+         *        The object should contain the options to initialize the TextTrack with.
+         *
+         * @param {string} [options.kind]
+         *        `TextTrack` kind (subtitles, captions, descriptions, chapters, or metadata).
+         *
+         * @param {string} [options.label]
+         *        Label to identify the text track
+         *
+         * @param {string} [options.language]
+         *        Two letter language abbreviation.
+         *
+         * @param {boolean} [options.default]
+         *        Default this track to on.
+         *
+         * @param {string} [options.id]
+         *        The internal id to assign this track.
+         *
+         * @param {string} [options.src]
+         *        A source url for the track.
+         *
+         * @return {HTMLTrackElement}
+         *         The track element that gets created.
+         */
+        createRemoteTextTrack(options) {
+            if (!this.featuresNativeTextTracks) {
+                return super.createRemoteTextTrack(options);
+            }
+            const htmlTrackElement = document.createElement('track');
+            if (options.kind) {
+                htmlTrackElement.kind = options.kind;
+            }
+            if (options.label) {
+                htmlTrackElement.label = options.label;
+            }
+            if (options.language || options.srclang) {
+                htmlTrackElement.srclang = options.language || options.srclang;
+            }
+            if (options.default) {
+                htmlTrackElement.default = options.default;
+            }
+            if (options.id) {
+                htmlTrackElement.id = options.id;
+            }
+            if (options.src) {
+                htmlTrackElement.src = options.src;
+            }
+            return htmlTrackElement;
+        }
+
+        /**
+         * Creates a remote text track object and returns an html track element.
+         *
+         * @param {Object} options The object should contain values for
+         * kind, language, label, and src (location of the WebVTT file)
+         * @param {boolean} [manualCleanup=false] if set to true, the TextTrack
+         * will not be removed from the TextTrackList and HtmlTrackElementList
+         * after a source change
+         * @return {HTMLTrackElement} An Html Track Element.
+         * This can be an emulated {@link HTMLTrackElement} or a native one.
+         *
+         */
+        addRemoteTextTrack(options, manualCleanup) {
+            const htmlTrackElement = super.addRemoteTextTrack(options, manualCleanup);
+            if (this.featuresNativeTextTracks) {
+                this.el().appendChild(htmlTrackElement);
+            }
+            return htmlTrackElement;
+        }
+
+        /**
+         * Remove remote `TextTrack` from `TextTrackList` object
+         *
+         * @param {TextTrack} track
+         *        `TextTrack` object to remove
+         */
+        removeRemoteTextTrack(track) {
+            super.removeRemoteTextTrack(track);
+            if (this.featuresNativeTextTracks) {
+                const tracks = this.$$('track');
+                let i = tracks.length;
+                while (i--) {
+                    if (track === tracks[i] || track === tracks[i].track) {
+                        this.el().removeChild(tracks[i]);
+                    }
+                }
+            }
+        }
+
+        /**
+         * Gets available media playback quality metrics as specified by the W3C's Media
+         * Playback Quality API.
+         *
+         * @see [Spec]{@link https://wicg.github.io/media-playback-quality}
+         *
+         * @return {Object}
+         *         An object with supported media playback quality metrics
+         */
+        getVideoPlaybackQuality() {
+            if (typeof this.el().getVideoPlaybackQuality === 'function') {
+                return this.el().getVideoPlaybackQuality();
+            }
+            const videoPlaybackQuality = {};
+            if (typeof this.el().webkitDroppedFrameCount !== 'undefined' && typeof this.el().webkitDecodedFrameCount !== 'undefined') {
+                videoPlaybackQuality.droppedVideoFrames = this.el().webkitDroppedFrameCount;
+                videoPlaybackQuality.totalVideoFrames = this.el().webkitDecodedFrameCount;
+            }
+            if (window.performance) {
+                videoPlaybackQuality.creationTime = window.performance.now();
+            }
+            return videoPlaybackQuality;
         }
-      }
     }
+
+    /* HTML5 Support Testing ---------------------------------------------------- */
+
     /**
-     * Exit full window
+     * Element for testing browser HTML5 media capabilities
      *
-     * @fires Player#exitFullWindow
+     * @type {Element}
+     * @constant
+     * @private
      */
-    ;
+    defineLazyProperty(Html5, 'TEST_VID', function () {
+        if (!isReal()) {
+            return;
+        }
+        const video = document.createElement('video');
+        const track = document.createElement('track');
+        track.kind = 'captions';
+        track.srclang = 'en';
+        track.label = 'English';
+        video.appendChild(track);
+        return video;
+    });
 
-    _proto.exitFullWindow = function exitFullWindow() {
-      this.isFullscreen(false);
-      this.isFullWindow = false;
-      off(document, 'keydown', this.boundFullWindowOnEscKey_); // Unhide scroll bars.
-
-      document.documentElement.style.overflow = this.docOrigOverflow; // Remove fullscreen styles
-
-      removeClass(document.body, 'vjs-full-window'); // Resize the box, controller, and poster to original sizes
-      // this.positionAll();
-
-      /**
-       * @event Player#exitFullWindow
-       * @type {EventTarget~Event}
-       */
-
-      this.trigger('exitFullWindow');
-    }
     /**
-     * Disable Picture-in-Picture mode.
-     *
-     * @param {boolean} value
-     *                  - true will disable Picture-in-Picture mode
-     *                  - false will enable Picture-in-Picture mode
-     */
-    ;
-
-    _proto.disablePictureInPicture = function disablePictureInPicture(value) {
-      if (value === undefined) {
-        return this.techGet_('disablePictureInPicture');
-      }
-
-      this.techCall_('setDisablePictureInPicture', value);
-      this.options_.disablePictureInPicture = value;
-      this.trigger('disablepictureinpicturechanged');
-    }
-    /**
-     * Check if the player is in Picture-in-Picture mode or tell the player that it
-     * is or is not in Picture-in-Picture mode.
-     *
-     * @param  {boolean} [isPiP]
-     *         Set the players current Picture-in-Picture state
+     * Check if HTML5 media is supported by this browser/device.
      *
      * @return {boolean}
-     *         - true if Picture-in-Picture is on and getting
-     *         - false if Picture-in-Picture is off and getting
+     *         - True if HTML5 media is supported.
+     *         - False if HTML5 media is not supported.
      */
-    ;
-
-    _proto.isInPictureInPicture = function isInPictureInPicture(isPiP) {
-      if (isPiP !== undefined) {
-        this.isInPictureInPicture_ = !!isPiP;
-        this.togglePictureInPictureClass_();
-        return;
-      }
-
-      return !!this.isInPictureInPicture_;
-    }
-    /**
-     * Create a floating video window always on top of other windows so that users may
-     * continue consuming media while they interact with other content sites, or
-     * applications on their device.
-     *
-     * @see [Spec]{@link https://wicg.github.io/picture-in-picture}
-     *
-     * @fires Player#enterpictureinpicture
-     *
-     * @return {Promise}
-     *         A promise with a Picture-in-Picture window.
-     */
-    ;
-
-    _proto.requestPictureInPicture = function requestPictureInPicture() {
-      if ('pictureInPictureEnabled' in document && this.disablePictureInPicture() === false) {
-        /**
-         * This event fires when the player enters picture in picture mode
-         *
-         * @event Player#enterpictureinpicture
-         * @type {EventTarget~Event}
-         */
-        return this.techGet_('requestPictureInPicture');
-      }
-    }
-    /**
-     * Exit Picture-in-Picture mode.
-     *
-     * @see [Spec]{@link https://wicg.github.io/picture-in-picture}
-     *
-     * @fires Player#leavepictureinpicture
-     *
-     * @return {Promise}
-     *         A promise.
-     */
-    ;
-
-    _proto.exitPictureInPicture = function exitPictureInPicture() {
-      if ('pictureInPictureEnabled' in document) {
-        /**
-         * This event fires when the player leaves picture in picture mode
-         *
-         * @event Player#leavepictureinpicture
-         * @type {EventTarget~Event}
-         */
-        return document.exitPictureInPicture();
-      }
-    }
-    /**
-     * Called when this Player has focus and a key gets pressed down, or when
-     * any Component of this player receives a key press that it doesn't handle.
-     * This allows player-wide hotkeys (either as defined below, or optionally
-     * by an external function).
-     *
-     * @param {EventTarget~Event} event
-     *        The `keydown` event that caused this function to be called.
-     *
-     * @listens keydown
-     */
-    ;
-
-    _proto.handleKeyDown = function handleKeyDown(event) {
-      var userActions = this.options_.userActions; // Bail out if hotkeys are not configured.
-
-      if (!userActions || !userActions.hotkeys) {
-        return;
-      } // Function that determines whether or not to exclude an element from
-      // hotkeys handling.
-
-
-      var excludeElement = function excludeElement(el) {
-        var tagName = el.tagName.toLowerCase(); // The first and easiest test is for `contenteditable` elements.
-
-        if (el.isContentEditable) {
-          return true;
-        } // Inputs matching these types will still trigger hotkey handling as
-        // they are not text inputs.
-
-
-        var allowedInputTypes = ['button', 'checkbox', 'hidden', 'radio', 'reset', 'submit'];
-
-        if (tagName === 'input') {
-          return allowedInputTypes.indexOf(el.type) === -1;
-        } // The final test is by tag name. These tags will be excluded entirely.
-
-
-        var excludedTags = ['textarea'];
-        return excludedTags.indexOf(tagName) !== -1;
-      }; // Bail out if the user is focused on an interactive form element.
-
-
-      if (excludeElement(this.el_.ownerDocument.activeElement)) {
-        return;
-      }
-
-      if (typeof userActions.hotkeys === 'function') {
-        userActions.hotkeys.call(this, event);
-      } else {
-        this.handleHotkeys(event);
-      }
-    }
-    /**
-     * Called when this Player receives a hotkey keydown event.
-     * Supported player-wide hotkeys are:
-     *
-     *   f          - toggle fullscreen
-     *   m          - toggle mute
-     *   k or Space - toggle play/pause
-     *
-     * @param {EventTarget~Event} event
-     *        The `keydown` event that caused this function to be called.
-     */
-    ;
-
-    _proto.handleHotkeys = function handleHotkeys(event) {
-      var hotkeys = this.options_.userActions ? this.options_.userActions.hotkeys : {}; // set fullscreenKey, muteKey, playPauseKey from `hotkeys`, use defaults if not set
-
-      var _hotkeys$fullscreenKe = hotkeys.fullscreenKey,
-          fullscreenKey = _hotkeys$fullscreenKe === void 0 ? function (keydownEvent) {
-        return keycode.isEventKey(keydownEvent, 'f');
-      } : _hotkeys$fullscreenKe,
-          _hotkeys$muteKey = hotkeys.muteKey,
-          muteKey = _hotkeys$muteKey === void 0 ? function (keydownEvent) {
-        return keycode.isEventKey(keydownEvent, 'm');
-      } : _hotkeys$muteKey,
-          _hotkeys$playPauseKey = hotkeys.playPauseKey,
-          playPauseKey = _hotkeys$playPauseKey === void 0 ? function (keydownEvent) {
-        return keycode.isEventKey(keydownEvent, 'k') || keycode.isEventKey(keydownEvent, 'Space');
-      } : _hotkeys$playPauseKey;
-
-      if (fullscreenKey.call(this, event)) {
-        event.preventDefault();
-        event.stopPropagation();
-        var FSToggle = Component$1.getComponent('FullscreenToggle');
-
-        if (document[this.fsApi_.fullscreenEnabled] !== false) {
-          FSToggle.prototype.handleClick.call(this, event);
+    Html5.isSupported = function () {
+        // IE with no Media Player is a LIAR! (#984)
+        try {
+            Html5.TEST_VID.volume = 0.5;
+        } catch (e) {
+            return false;
         }
-      } else if (muteKey.call(this, event)) {
-        event.preventDefault();
-        event.stopPropagation();
-        var MuteToggle = Component$1.getComponent('MuteToggle');
-        MuteToggle.prototype.handleClick.call(this, event);
-      } else if (playPauseKey.call(this, event)) {
-        event.preventDefault();
-        event.stopPropagation();
-        var PlayToggle = Component$1.getComponent('PlayToggle');
-        PlayToggle.prototype.handleClick.call(this, event);
-      }
-    }
+        return !!(Html5.TEST_VID && Html5.TEST_VID.canPlayType);
+    };
+
     /**
-     * Check whether the player can play a given mimetype
+     * Check if the tech can support the given type
      *
-     * @see https://www.w3.org/TR/2011/WD-html5-20110113/video.html#dom-navigator-canplaytype
+     * @param {string} type
+     *        The mimetype to check
+     * @return {string} 'probably', 'maybe', or '' (empty string)
+     */
+    Html5.canPlayType = function (type) {
+        return Html5.TEST_VID.canPlayType(type);
+    };
+
+    /**
+     * Check if the tech can support the given source
+     *
+     * @param {Object} srcObj
+     *        The source object
+     * @param {Object} options
+     *        The options passed to the tech
+     * @return {string} 'probably', 'maybe', or '' (empty string)
+     */
+    Html5.canPlaySource = function (srcObj, options) {
+        return Html5.canPlayType(srcObj.type);
+    };
+
+    /**
+     * Check if the volume can be changed in this browser/device.
+     * Volume cannot be changed in a lot of mobile devices.
+     * Specifically, it can't be changed from 1 on iOS.
+     *
+     * @return {boolean}
+     *         - True if volume can be controlled
+     *         - False otherwise
+     */
+    Html5.canControlVolume = function () {
+        // IE will error if Windows Media Player not installed #3315
+        try {
+            const volume = Html5.TEST_VID.volume;
+            Html5.TEST_VID.volume = volume / 2 + 0.1;
+            const canControl = volume !== Html5.TEST_VID.volume;
+
+            // With the introduction of iOS 15, there are cases where the volume is read as
+            // changed but reverts back to its original state at the start of the next tick.
+            // To determine whether volume can be controlled on iOS,
+            // a timeout is set and the volume is checked asynchronously.
+            // Since `features` doesn't currently work asynchronously, the value is manually set.
+            if (canControl && IS_IOS) {
+                window.setTimeout(() => {
+                    if (Html5 && Html5.prototype) {
+                        Html5.prototype.featuresVolumeControl = volume !== Html5.TEST_VID.volume;
+                    }
+                });
+
+                // default iOS to false, which will be updated in the timeout above.
+                return false;
+            }
+            return canControl;
+        } catch (e) {
+            return false;
+        }
+    };
+
+    /**
+     * Check if the volume can be muted in this browser/device.
+     * Some devices, e.g. iOS, don't allow changing volume
+     * but permits muting/unmuting.
+     *
+     * @return {boolean}
+     *      - True if volume can be muted
+     *      - False otherwise
+     */
+    Html5.canMuteVolume = function () {
+        try {
+            const muted = Html5.TEST_VID.muted;
+
+            // in some versions of iOS muted property doesn't always
+            // work, so we want to set both property and attribute
+            Html5.TEST_VID.muted = !muted;
+            if (Html5.TEST_VID.muted) {
+                setAttribute(Html5.TEST_VID, 'muted', 'muted');
+            } else {
+                removeAttribute(Html5.TEST_VID, 'muted', 'muted');
+            }
+            return muted !== Html5.TEST_VID.muted;
+        } catch (e) {
+            return false;
+        }
+    };
+
+    /**
+     * Check if the playback rate can be changed in this browser/device.
+     *
+     * @return {boolean}
+     *         - True if playback rate can be controlled
+     *         - False otherwise
+     */
+    Html5.canControlPlaybackRate = function () {
+        // Playback rate API is implemented in Android Chrome, but doesn't do anything
+        // https://github.com/videojs/video.js/issues/3180
+        if (IS_ANDROID && IS_CHROME && CHROME_VERSION < 58) {
+            return false;
+        }
+        // IE will error if Windows Media Player not installed #3315
+        try {
+            const playbackRate = Html5.TEST_VID.playbackRate;
+            Html5.TEST_VID.playbackRate = playbackRate / 2 + 0.1;
+            return playbackRate !== Html5.TEST_VID.playbackRate;
+        } catch (e) {
+            return false;
+        }
+    };
+
+    /**
+     * Check if we can override a video/audio elements attributes, with
+     * Object.defineProperty.
+     *
+     * @return {boolean}
+     *         - True if builtin attributes can be overridden
+     *         - False otherwise
+     */
+    Html5.canOverrideAttributes = function () {
+        // if we cannot overwrite the src/innerHTML property, there is no support
+        // iOS 7 safari for instance cannot do this.
+        try {
+            const noop = () => {};
+            Object.defineProperty(document.createElement('video'), 'src', {
+                get: noop,
+                set: noop
+            });
+            Object.defineProperty(document.createElement('audio'), 'src', {
+                get: noop,
+                set: noop
+            });
+            Object.defineProperty(document.createElement('video'), 'innerHTML', {
+                get: noop,
+                set: noop
+            });
+            Object.defineProperty(document.createElement('audio'), 'innerHTML', {
+                get: noop,
+                set: noop
+            });
+        } catch (e) {
+            return false;
+        }
+        return true;
+    };
+
+    /**
+     * Check to see if native `TextTrack`s are supported by this browser/device.
+     *
+     * @return {boolean}
+     *         - True if native `TextTrack`s are supported.
+     *         - False otherwise
+     */
+    Html5.supportsNativeTextTracks = function () {
+        return IS_ANY_SAFARI || IS_IOS && IS_CHROME;
+    };
+
+    /**
+     * Check to see if native `VideoTrack`s are supported by this browser/device
+     *
+     * @return {boolean}
+     *        - True if native `VideoTrack`s are supported.
+     *        - False otherwise
+     */
+    Html5.supportsNativeVideoTracks = function () {
+        return !!(Html5.TEST_VID && Html5.TEST_VID.videoTracks);
+    };
+
+    /**
+     * Check to see if native `AudioTrack`s are supported by this browser/device
+     *
+     * @return {boolean}
+     *        - True if native `AudioTrack`s are supported.
+     *        - False otherwise
+     */
+    Html5.supportsNativeAudioTracks = function () {
+        return !!(Html5.TEST_VID && Html5.TEST_VID.audioTracks);
+    };
+
+    /**
+     * An array of events available on the Html5 tech.
+     *
+     * @private
+     * @type {Array}
+     */
+    Html5.Events = ['loadstart', 'suspend', 'abort', 'error', 'emptied', 'stalled', 'loadedmetadata', 'loadeddata', 'canplay', 'canplaythrough', 'playing', 'waiting', 'seeking', 'seeked', 'ended', 'durationchange', 'timeupdate', 'progress', 'play', 'pause', 'ratechange', 'resize', 'volumechange'];
+
+    /**
+     * Boolean indicating whether the `Tech` supports volume control.
+     *
+     * @type {boolean}
+     * @default {@link Html5.canControlVolume}
+     */
+    /**
+     * Boolean indicating whether the `Tech` supports muting volume.
+     *
+     * @type {boolean}
+     * @default {@link Html5.canMuteVolume}
+     */
+
+    /**
+     * Boolean indicating whether the `Tech` supports changing the speed at which the media
+     * plays. Examples:
+     *   - Set player to play 2x (twice) as fast
+     *   - Set player to play 0.5x (half) as fast
+     *
+     * @type {boolean}
+     * @default {@link Html5.canControlPlaybackRate}
+     */
+
+    /**
+     * Boolean indicating whether the `Tech` supports the `sourceset` event.
+     *
+     * @type {boolean}
+     * @default
+     */
+    /**
+     * Boolean indicating whether the `HTML5` tech currently supports native `TextTrack`s.
+     *
+     * @type {boolean}
+     * @default {@link Html5.supportsNativeTextTracks}
+     */
+    /**
+     * Boolean indicating whether the `HTML5` tech currently supports native `VideoTrack`s.
+     *
+     * @type {boolean}
+     * @default {@link Html5.supportsNativeVideoTracks}
+     */
+    /**
+     * Boolean indicating whether the `HTML5` tech currently supports native `AudioTrack`s.
+     *
+     * @type {boolean}
+     * @default {@link Html5.supportsNativeAudioTracks}
+     */
+    [['featuresMuteControl', 'canMuteVolume'], ['featuresPlaybackRate', 'canControlPlaybackRate'], ['featuresSourceset', 'canOverrideAttributes'], ['featuresNativeTextTracks', 'supportsNativeTextTracks'], ['featuresNativeVideoTracks', 'supportsNativeVideoTracks'], ['featuresNativeAudioTracks', 'supportsNativeAudioTracks']].forEach(function ([key, fn]) {
+        defineLazyProperty(Html5.prototype, key, () => Html5[fn](), true);
+    });
+    Html5.prototype.featuresVolumeControl = Html5.canControlVolume();
+
+    /**
+     * Boolean indicating whether the `HTML5` tech currently supports the media element
+     * moving in the DOM. iOS breaks if you move the media element, so this is set this to
+     * false there. Everywhere else this should be true.
+     *
+     * @type {boolean}
+     * @default
+     */
+    Html5.prototype.movingMediaElementInDOM = !IS_IOS;
+
+    // TODO: Previous comment: No longer appears to be used. Can probably be removed.
+    //       Is this true?
+    /**
+     * Boolean indicating whether the `HTML5` tech currently supports automatic media resize
+     * when going into fullscreen.
+     *
+     * @type {boolean}
+     * @default
+     */
+    Html5.prototype.featuresFullscreenResize = true;
+
+    /**
+     * Boolean indicating whether the `HTML5` tech currently supports the progress event.
+     * If this is false, manual `progress` events will be triggered instead.
+     *
+     * @type {boolean}
+     * @default
+     */
+    Html5.prototype.featuresProgressEvents = true;
+
+    /**
+     * Boolean indicating whether the `HTML5` tech currently supports the timeupdate event.
+     * If this is false, manual `timeupdate` events will be triggered instead.
+     *
+     * @default
+     */
+    Html5.prototype.featuresTimeupdateEvents = true;
+
+    /**
+     * Whether the HTML5 el supports `requestVideoFrameCallback`
+     *
+     * @type {boolean}
+     */
+    Html5.prototype.featuresVideoFrameCallback = !!(Html5.TEST_VID && Html5.TEST_VID.requestVideoFrameCallback);
+    Html5.disposeMediaElement = function (el) {
+        if (!el) {
+            return;
+        }
+        if (el.parentNode) {
+            el.parentNode.removeChild(el);
+        }
+
+        // remove any child track or source nodes to prevent their loading
+        while (el.hasChildNodes()) {
+            el.removeChild(el.firstChild);
+        }
+
+        // remove any src reference. not setting `src=''` because that causes a warning
+        // in firefox
+        el.removeAttribute('src');
+
+        // force the media element to update its loading state by calling load()
+        // however IE on Windows 7N has a bug that throws an error so need a try/catch (#793)
+        if (typeof el.load === 'function') {
+            // wrapping in an iife so it's not deoptimized (#1060#discussion_r10324473)
+            (function () {
+                try {
+                    el.load();
+                } catch (e) {
+                    // not supported
+                }
+            })();
+        }
+    };
+    Html5.resetMediaElement = function (el) {
+        if (!el) {
+            return;
+        }
+        const sources = el.querySelectorAll('source');
+        let i = sources.length;
+        while (i--) {
+            el.removeChild(sources[i]);
+        }
+
+        // remove any src reference.
+        // not setting `src=''` because that throws an error
+        el.removeAttribute('src');
+        if (typeof el.load === 'function') {
+            // wrapping in an iife so it's not deoptimized (#1060#discussion_r10324473)
+            (function () {
+                try {
+                    el.load();
+                } catch (e) {
+                    // satisfy linter
+                }
+            })();
+        }
+    };
+
+    /* Native HTML5 element property wrapping ----------------------------------- */
+    // Wrap native boolean attributes with getters that check both property and attribute
+    // The list is as followed:
+    // muted, defaultMuted, autoplay, controls, loop, playsinline
+    [
+        /**
+         * Get the value of `muted` from the media element. `muted` indicates
+         * that the volume for the media should be set to silent. This does not actually change
+         * the `volume` attribute.
+         *
+         * @method Html5#muted
+         * @return {boolean}
+         *         - True if the value of `volume` should be ignored and the audio set to silent.
+         *         - False if the value of `volume` should be used.
+         *
+         * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-muted}
+         */
+        'muted',
+        /**
+         * Get the value of `defaultMuted` from the media element. `defaultMuted` indicates
+         * whether the media should start muted or not. Only changes the default state of the
+         * media. `muted` and `defaultMuted` can have different values. {@link Html5#muted} indicates the
+         * current state.
+         *
+         * @method Html5#defaultMuted
+         * @return {boolean}
+         *         - The value of `defaultMuted` from the media element.
+         *         - True indicates that the media should start muted.
+         *         - False indicates that the media should not start muted
+         *
+         * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-defaultmuted}
+         */
+        'defaultMuted',
+        /**
+         * Get the value of `autoplay` from the media element. `autoplay` indicates
+         * that the media should start to play as soon as the page is ready.
+         *
+         * @method Html5#autoplay
+         * @return {boolean}
+         *         - The value of `autoplay` from the media element.
+         *         - True indicates that the media should start as soon as the page loads.
+         *         - False indicates that the media should not start as soon as the page loads.
+         *
+         * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-media-autoplay}
+         */
+        'autoplay',
+        /**
+         * Get the value of `controls` from the media element. `controls` indicates
+         * whether the native media controls should be shown or hidden.
+         *
+         * @method Html5#controls
+         * @return {boolean}
+         *         - The value of `controls` from the media element.
+         *         - True indicates that native controls should be showing.
+         *         - False indicates that native controls should be hidden.
+         *
+         * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-media-controls}
+         */
+        'controls',
+        /**
+         * Get the value of `loop` from the media element. `loop` indicates
+         * that the media should return to the start of the media and continue playing once
+         * it reaches the end.
+         *
+         * @method Html5#loop
+         * @return {boolean}
+         *         - The value of `loop` from the media element.
+         *         - True indicates that playback should seek back to start once
+         *           the end of a media is reached.
+         *         - False indicates that playback should not loop back to the start when the
+         *           end of the media is reached.
+         *
+         * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-media-loop}
+         */
+        'loop',
+        /**
+         * Get the value of `playsinline` from the media element. `playsinline` indicates
+         * to the browser that non-fullscreen playback is preferred when fullscreen
+         * playback is the native default, such as in iOS Safari.
+         *
+         * @method Html5#playsinline
+         * @return {boolean}
+         *         - The value of `playsinline` from the media element.
+         *         - True indicates that the media should play inline.
+         *         - False indicates that the media should not play inline.
+         *
+         * @see [Spec]{@link https://html.spec.whatwg.org/#attr-video-playsinline}
+         */
+        'playsinline'].forEach(function (prop) {
+        Html5.prototype[prop] = function () {
+            return this.el_[prop] || this.el_.hasAttribute(prop);
+        };
+    });
+
+    // Wrap native boolean attributes with setters that set both property and attribute
+    // The list is as followed:
+    // setMuted, setDefaultMuted, setAutoplay, setLoop, setPlaysinline
+    // setControls is special-cased above
+    [
+        /**
+         * Set the value of `muted` on the media element. `muted` indicates that the current
+         * audio level should be silent.
+         *
+         * @method Html5#setMuted
+         * @param {boolean} muted
+         *        - True if the audio should be set to silent
+         *        - False otherwise
+         *
+         * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-muted}
+         */
+        'muted',
+        /**
+         * Set the value of `defaultMuted` on the media element. `defaultMuted` indicates that the current
+         * audio level should be silent, but will only effect the muted level on initial playback..
+         *
+         * @method Html5.prototype.setDefaultMuted
+         * @param {boolean} defaultMuted
+         *        - True if the audio should be set to silent
+         *        - False otherwise
+         *
+         * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-defaultmuted}
+         */
+        'defaultMuted',
+        /**
+         * Set the value of `autoplay` on the media element. `autoplay` indicates
+         * that the media should start to play as soon as the page is ready.
+         *
+         * @method Html5#setAutoplay
+         * @param {boolean} autoplay
+         *         - True indicates that the media should start as soon as the page loads.
+         *         - False indicates that the media should not start as soon as the page loads.
+         *
+         * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-media-autoplay}
+         */
+        'autoplay',
+        /**
+         * Set the value of `loop` on the media element. `loop` indicates
+         * that the media should return to the start of the media and continue playing once
+         * it reaches the end.
+         *
+         * @method Html5#setLoop
+         * @param {boolean} loop
+         *         - True indicates that playback should seek back to start once
+         *           the end of a media is reached.
+         *         - False indicates that playback should not loop back to the start when the
+         *           end of the media is reached.
+         *
+         * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-media-loop}
+         */
+        'loop',
+        /**
+         * Set the value of `playsinline` from the media element. `playsinline` indicates
+         * to the browser that non-fullscreen playback is preferred when fullscreen
+         * playback is the native default, such as in iOS Safari.
+         *
+         * @method Html5#setPlaysinline
+         * @param {boolean} playsinline
+         *         - True indicates that the media should play inline.
+         *         - False indicates that the media should not play inline.
+         *
+         * @see [Spec]{@link https://html.spec.whatwg.org/#attr-video-playsinline}
+         */
+        'playsinline'].forEach(function (prop) {
+        Html5.prototype['set' + toTitleCase$1(prop)] = function (v) {
+            this.el_[prop] = v;
+            if (v) {
+                this.el_.setAttribute(prop, prop);
+            } else {
+                this.el_.removeAttribute(prop);
+            }
+        };
+    });
+
+    // Wrap native properties with a getter
+    // The list is as followed
+    // paused, currentTime, buffered, volume, poster, preload, error, seeking
+    // seekable, ended, playbackRate, defaultPlaybackRate, disablePictureInPicture
+    // played, networkState, readyState, videoWidth, videoHeight, crossOrigin
+    [
+        /**
+         * Get the value of `paused` from the media element. `paused` indicates whether the media element
+         * is currently paused or not.
+         *
+         * @method Html5#paused
+         * @return {boolean}
+         *         The value of `paused` from the media element.
+         *
+         * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-paused}
+         */
+        'paused',
+        /**
+         * Get the value of `currentTime` from the media element. `currentTime` indicates
+         * the current second that the media is at in playback.
+         *
+         * @method Html5#currentTime
+         * @return {number}
+         *         The value of `currentTime` from the media element.
+         *
+         * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-currenttime}
+         */
+        'currentTime',
+        /**
+         * Get the value of `buffered` from the media element. `buffered` is a `TimeRange`
+         * object that represents the parts of the media that are already downloaded and
+         * available for playback.
+         *
+         * @method Html5#buffered
+         * @return {TimeRange}
+         *         The value of `buffered` from the media element.
+         *
+         * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-buffered}
+         */
+        'buffered',
+        /**
+         * Get the value of `volume` from the media element. `volume` indicates
+         * the current playback volume of audio for a media. `volume` will be a value from 0
+         * (silent) to 1 (loudest and default).
+         *
+         * @method Html5#volume
+         * @return {number}
+         *         The value of `volume` from the media element. Value will be between 0-1.
+         *
+         * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-a-volume}
+         */
+        'volume',
+        /**
+         * Get the value of `poster` from the media element. `poster` indicates
+         * that the url of an image file that can/will be shown when no media data is available.
+         *
+         * @method Html5#poster
+         * @return {string}
+         *         The value of `poster` from the media element. Value will be a url to an
+         *         image.
+         *
+         * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-video-poster}
+         */
+        'poster',
+        /**
+         * Get the value of `preload` from the media element. `preload` indicates
+         * what should download before the media is interacted with. It can have the following
+         * values:
+         * - none: nothing should be downloaded
+         * - metadata: poster and the first few frames of the media may be downloaded to get
+         *   media dimensions and other metadata
+         * - auto: allow the media and metadata for the media to be downloaded before
+         *    interaction
+         *
+         * @method Html5#preload
+         * @return {string}
+         *         The value of `preload` from the media element. Will be 'none', 'metadata',
+         *         or 'auto'.
+         *
+         * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-media-preload}
+         */
+        'preload',
+        /**
+         * Get the value of the `error` from the media element. `error` indicates any
+         * MediaError that may have occurred during playback. If error returns null there is no
+         * current error.
+         *
+         * @method Html5#error
+         * @return {MediaError|null}
+         *         The value of `error` from the media element. Will be `MediaError` if there
+         *         is a current error and null otherwise.
+         *
+         * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-error}
+         */
+        'error',
+        /**
+         * Get the value of `seeking` from the media element. `seeking` indicates whether the
+         * media is currently seeking to a new position or not.
+         *
+         * @method Html5#seeking
+         * @return {boolean}
+         *         - The value of `seeking` from the media element.
+         *         - True indicates that the media is currently seeking to a new position.
+         *         - False indicates that the media is not seeking to a new position at this time.
+         *
+         * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-seeking}
+         */
+        'seeking',
+        /**
+         * Get the value of `seekable` from the media element. `seekable` returns a
+         * `TimeRange` object indicating ranges of time that can currently be `seeked` to.
+         *
+         * @method Html5#seekable
+         * @return {TimeRange}
+         *         The value of `seekable` from the media element. A `TimeRange` object
+         *         indicating the current ranges of time that can be seeked to.
+         *
+         * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-seekable}
+         */
+        'seekable',
+        /**
+         * Get the value of `ended` from the media element. `ended` indicates whether
+         * the media has reached the end or not.
+         *
+         * @method Html5#ended
+         * @return {boolean}
+         *         - The value of `ended` from the media element.
+         *         - True indicates that the media has ended.
+         *         - False indicates that the media has not ended.
+         *
+         * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-ended}
+         */
+        'ended',
+        /**
+         * Get the value of `playbackRate` from the media element. `playbackRate` indicates
+         * the rate at which the media is currently playing back. Examples:
+         *   - if playbackRate is set to 2, media will play twice as fast.
+         *   - if playbackRate is set to 0.5, media will play half as fast.
+         *
+         * @method Html5#playbackRate
+         * @return {number}
+         *         The value of `playbackRate` from the media element. A number indicating
+         *         the current playback speed of the media, where 1 is normal speed.
+         *
+         * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-playbackrate}
+         */
+        'playbackRate',
+        /**
+         * Get the value of `defaultPlaybackRate` from the media element. `defaultPlaybackRate` indicates
+         * the rate at which the media is currently playing back. This value will not indicate the current
+         * `playbackRate` after playback has started, use {@link Html5#playbackRate} for that.
+         *
+         * Examples:
+         *   - if defaultPlaybackRate is set to 2, media will play twice as fast.
+         *   - if defaultPlaybackRate is set to 0.5, media will play half as fast.
+         *
+         * @method Html5.prototype.defaultPlaybackRate
+         * @return {number}
+         *         The value of `defaultPlaybackRate` from the media element. A number indicating
+         *         the current playback speed of the media, where 1 is normal speed.
+         *
+         * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-playbackrate}
+         */
+        'defaultPlaybackRate',
+        /**
+         * Get the value of 'disablePictureInPicture' from the video element.
+         *
+         * @method Html5#disablePictureInPicture
+         * @return {boolean} value
+         *         - The value of `disablePictureInPicture` from the video element.
+         *         - True indicates that the video can't be played in Picture-In-Picture mode
+         *         - False indicates that the video can be played in Picture-In-Picture mode
+         *
+         * @see [Spec]{@link https://w3c.github.io/picture-in-picture/#disable-pip}
+         */
+        'disablePictureInPicture',
+        /**
+         * Get the value of `played` from the media element. `played` returns a `TimeRange`
+         * object representing points in the media timeline that have been played.
+         *
+         * @method Html5#played
+         * @return {TimeRange}
+         *         The value of `played` from the media element. A `TimeRange` object indicating
+         *         the ranges of time that have been played.
+         *
+         * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-played}
+         */
+        'played',
+        /**
+         * Get the value of `networkState` from the media element. `networkState` indicates
+         * the current network state. It returns an enumeration from the following list:
+         * - 0: NETWORK_EMPTY
+         * - 1: NETWORK_IDLE
+         * - 2: NETWORK_LOADING
+         * - 3: NETWORK_NO_SOURCE
+         *
+         * @method Html5#networkState
+         * @return {number}
+         *         The value of `networkState` from the media element. This will be a number
+         *         from the list in the description.
+         *
+         * @see [Spec] {@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-networkstate}
+         */
+        'networkState',
+        /**
+         * Get the value of `readyState` from the media element. `readyState` indicates
+         * the current state of the media element. It returns an enumeration from the
+         * following list:
+         * - 0: HAVE_NOTHING
+         * - 1: HAVE_METADATA
+         * - 2: HAVE_CURRENT_DATA
+         * - 3: HAVE_FUTURE_DATA
+         * - 4: HAVE_ENOUGH_DATA
+         *
+         * @method Html5#readyState
+         * @return {number}
+         *         The value of `readyState` from the media element. This will be a number
+         *         from the list in the description.
+         *
+         * @see [Spec] {@link https://www.w3.org/TR/html5/embedded-content-0.html#ready-states}
+         */
+        'readyState',
+        /**
+         * Get the value of `videoWidth` from the video element. `videoWidth` indicates
+         * the current width of the video in css pixels.
+         *
+         * @method Html5#videoWidth
+         * @return {number}
+         *         The value of `videoWidth` from the video element. This will be a number
+         *         in css pixels.
+         *
+         * @see [Spec] {@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-video-videowidth}
+         */
+        'videoWidth',
+        /**
+         * Get the value of `videoHeight` from the video element. `videoHeight` indicates
+         * the current height of the video in css pixels.
+         *
+         * @method Html5#videoHeight
+         * @return {number}
+         *         The value of `videoHeight` from the video element. This will be a number
+         *         in css pixels.
+         *
+         * @see [Spec] {@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-video-videowidth}
+         */
+        'videoHeight',
+        /**
+         * Get the value of `crossOrigin` from the media element. `crossOrigin` indicates
+         * to the browser that should sent the cookies along with the requests for the
+         * different assets/playlists
+         *
+         * @method Html5#crossOrigin
+         * @return {string}
+         *         - anonymous indicates that the media should not sent cookies.
+         *         - use-credentials indicates that the media should sent cookies along the requests.
+         *
+         * @see [Spec]{@link https://html.spec.whatwg.org/#attr-media-crossorigin}
+         */
+        'crossOrigin'].forEach(function (prop) {
+        Html5.prototype[prop] = function () {
+            return this.el_[prop];
+        };
+    });
+
+    // Wrap native properties with a setter in this format:
+    // set + toTitleCase(name)
+    // The list is as follows:
+    // setVolume, setSrc, setPoster, setPreload, setPlaybackRate, setDefaultPlaybackRate,
+    // setDisablePictureInPicture, setCrossOrigin
+    [
+        /**
+         * Set the value of `volume` on the media element. `volume` indicates the current
+         * audio level as a percentage in decimal form. This means that 1 is 100%, 0.5 is 50%, and
+         * so on.
+         *
+         * @method Html5#setVolume
+         * @param {number} percentAsDecimal
+         *        The volume percent as a decimal. Valid range is from 0-1.
+         *
+         * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-a-volume}
+         */
+        'volume',
+        /**
+         * Set the value of `src` on the media element. `src` indicates the current
+         * {@link Tech~SourceObject} for the media.
+         *
+         * @method Html5#setSrc
+         * @param {Tech~SourceObject} src
+         *        The source object to set as the current source.
+         *
+         * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-src}
+         */
+        'src',
+        /**
+         * Set the value of `poster` on the media element. `poster` is the url to
+         * an image file that can/will be shown when no media data is available.
+         *
+         * @method Html5#setPoster
+         * @param {string} poster
+         *        The url to an image that should be used as the `poster` for the media
+         *        element.
+         *
+         * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-media-poster}
+         */
+        'poster',
+        /**
+         * Set the value of `preload` on the media element. `preload` indicates
+         * what should download before the media is interacted with. It can have the following
+         * values:
+         * - none: nothing should be downloaded
+         * - metadata: poster and the first few frames of the media may be downloaded to get
+         *   media dimensions and other metadata
+         * - auto: allow the media and metadata for the media to be downloaded before
+         *    interaction
+         *
+         * @method Html5#setPreload
+         * @param {string} preload
+         *         The value of `preload` to set on the media element. Must be 'none', 'metadata',
+         *         or 'auto'.
+         *
+         * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-media-preload}
+         */
+        'preload',
+        /**
+         * Set the value of `playbackRate` on the media element. `playbackRate` indicates
+         * the rate at which the media should play back. Examples:
+         *   - if playbackRate is set to 2, media will play twice as fast.
+         *   - if playbackRate is set to 0.5, media will play half as fast.
+         *
+         * @method Html5#setPlaybackRate
+         * @return {number}
+         *         The value of `playbackRate` from the media element. A number indicating
+         *         the current playback speed of the media, where 1 is normal speed.
+         *
+         * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-playbackrate}
+         */
+        'playbackRate',
+        /**
+         * Set the value of `defaultPlaybackRate` on the media element. `defaultPlaybackRate` indicates
+         * the rate at which the media should play back upon initial startup. Changing this value
+         * after a video has started will do nothing. Instead you should used {@link Html5#setPlaybackRate}.
+         *
+         * Example Values:
+         *   - if playbackRate is set to 2, media will play twice as fast.
+         *   - if playbackRate is set to 0.5, media will play half as fast.
+         *
+         * @method Html5.prototype.setDefaultPlaybackRate
+         * @return {number}
+         *         The value of `defaultPlaybackRate` from the media element. A number indicating
+         *         the current playback speed of the media, where 1 is normal speed.
+         *
+         * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-defaultplaybackrate}
+         */
+        'defaultPlaybackRate',
+        /**
+         * Prevents the browser from suggesting a Picture-in-Picture context menu
+         * or to request Picture-in-Picture automatically in some cases.
+         *
+         * @method Html5#setDisablePictureInPicture
+         * @param {boolean} value
+         *         The true value will disable Picture-in-Picture mode.
+         *
+         * @see [Spec]{@link https://w3c.github.io/picture-in-picture/#disable-pip}
+         */
+        'disablePictureInPicture',
+        /**
+         * Set the value of `crossOrigin` from the media element. `crossOrigin` indicates
+         * to the browser that should sent the cookies along with the requests for the
+         * different assets/playlists
+         *
+         * @method Html5#setCrossOrigin
+         * @param {string} crossOrigin
+         *         - anonymous indicates that the media should not sent cookies.
+         *         - use-credentials indicates that the media should sent cookies along the requests.
+         *
+         * @see [Spec]{@link https://html.spec.whatwg.org/#attr-media-crossorigin}
+         */
+        'crossOrigin'].forEach(function (prop) {
+        Html5.prototype['set' + toTitleCase$1(prop)] = function (v) {
+            this.el_[prop] = v;
+        };
+    });
+
+    // wrap native functions with a function
+    // The list is as follows:
+    // pause, load, play
+    [
+        /**
+         * A wrapper around the media elements `pause` function. This will call the `HTML5`
+         * media elements `pause` function.
+         *
+         * @method Html5#pause
+         * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-pause}
+         */
+        'pause',
+        /**
+         * A wrapper around the media elements `load` function. This will call the `HTML5`s
+         * media element `load` function.
+         *
+         * @method Html5#load
+         * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-load}
+         */
+        'load',
+        /**
+         * A wrapper around the media elements `play` function. This will call the `HTML5`s
+         * media element `play` function.
+         *
+         * @method Html5#play
+         * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-play}
+         */
+        'play'].forEach(function (prop) {
+        Html5.prototype[prop] = function () {
+            return this.el_[prop]();
+        };
+    });
+    Tech.withSourceHandlers(Html5);
+
+    /**
+     * Native source handler for Html5, simply passes the source to the media element.
+     *
+     * @property {Tech~SourceObject} source
+     *        The source object
+     *
+     * @property {Html5} tech
+     *        The instance of the HTML5 tech.
+     */
+    Html5.nativeSourceHandler = {};
+
+    /**
+     * Check if the media element can play the given mime type.
      *
      * @param {string} type
      *        The mimetype to check
@@ -27872,2036 +21861,4875 @@
      * @return {string}
      *         'probably', 'maybe', or '' (empty string)
      */
-    ;
-
-    _proto.canPlayType = function canPlayType(type) {
-      var can; // Loop through each playback technology in the options order
-
-      for (var i = 0, j = this.options_.techOrder; i < j.length; i++) {
-        var techName = j[i];
-        var tech = Tech.getTech(techName); // Support old behavior of techs being registered as components.
-        // Remove once that deprecated behavior is removed.
-
-        if (!tech) {
-          tech = Component$1.getComponent(techName);
-        } // Check if the current tech is defined before continuing
-
-
-        if (!tech) {
-          log$1.error("The \"" + techName + "\" tech is undefined. Skipped browser support check for that tech.");
-          continue;
-        } // Check if the browser supports this technology
-
-
-        if (tech.isSupported()) {
-          can = tech.canPlayType(type);
-
-          if (can) {
-            return can;
-          }
+    Html5.nativeSourceHandler.canPlayType = function (type) {
+        // IE without MediaPlayer throws an error (#519)
+        try {
+            return Html5.TEST_VID.canPlayType(type);
+        } catch (e) {
+            return '';
         }
-      }
+    };
 
-      return '';
-    }
     /**
-     * Select source based on tech-order or source-order
-     * Uses source-order selection if `options.sourceOrder` is truthy. Otherwise,
-     * defaults to tech-order selection
-     *
-     * @param {Array} sources
-     *        The sources for a media asset
-     *
-     * @return {Object|boolean}
-     *         Object of source and tech order or false
-     */
-    ;
-
-    _proto.selectSource = function selectSource(sources) {
-      var _this14 = this;
-
-      // Get only the techs specified in `techOrder` that exist and are supported by the
-      // current platform
-      var techs = this.options_.techOrder.map(function (techName) {
-        return [techName, Tech.getTech(techName)];
-      }).filter(function (_ref) {
-        var techName = _ref[0],
-            tech = _ref[1];
-
-        // Check if the current tech is defined before continuing
-        if (tech) {
-          // Check if the browser supports this technology
-          return tech.isSupported();
-        }
-
-        log$1.error("The \"" + techName + "\" tech is undefined. Skipped browser support check for that tech.");
-        return false;
-      }); // Iterate over each `innerArray` element once per `outerArray` element and execute
-      // `tester` with both. If `tester` returns a non-falsy value, exit early and return
-      // that value.
-
-      var findFirstPassingTechSourcePair = function findFirstPassingTechSourcePair(outerArray, innerArray, tester) {
-        var found;
-        outerArray.some(function (outerChoice) {
-          return innerArray.some(function (innerChoice) {
-            found = tester(outerChoice, innerChoice);
-
-            if (found) {
-              return true;
-            }
-          });
-        });
-        return found;
-      };
-
-      var foundSourceAndTech;
-
-      var flip = function flip(fn) {
-        return function (a, b) {
-          return fn(b, a);
-        };
-      };
-
-      var finder = function finder(_ref2, source) {
-        var techName = _ref2[0],
-            tech = _ref2[1];
-
-        if (tech.canPlaySource(source, _this14.options_[techName.toLowerCase()])) {
-          return {
-            source: source,
-            tech: techName
-          };
-        }
-      }; // Depending on the truthiness of `options.sourceOrder`, we swap the order of techs and sources
-      // to select from them based on their priority.
-
-
-      if (this.options_.sourceOrder) {
-        // Source-first ordering
-        foundSourceAndTech = findFirstPassingTechSourcePair(sources, techs, flip(finder));
-      } else {
-        // Tech-first ordering
-        foundSourceAndTech = findFirstPassingTechSourcePair(techs, sources, finder);
-      }
-
-      return foundSourceAndTech || false;
-    }
-    /**
-     * Executes source setting and getting logic
-     *
-     * @param {Tech~SourceObject|Tech~SourceObject[]|string} [source]
-     *        A SourceObject, an array of SourceObjects, or a string referencing
-     *        a URL to a media source. It is _highly recommended_ that an object
-     *        or array of objects is used here, so that source selection
-     *        algorithms can take the `type` into account.
-     *
-     *        If not provided, this method acts as a getter.
-     * @param {boolean} isRetry
-     *        Indicates whether this is being called internally as a result of a retry
-     *
-     * @return {string|undefined}
-     *         If the `source` argument is missing, returns the current source
-     *         URL. Otherwise, returns nothing/undefined.
-     */
-    ;
-
-    _proto.handleSrc_ = function handleSrc_(source, isRetry) {
-      var _this15 = this;
-
-      // getter usage
-      if (typeof source === 'undefined') {
-        return this.cache_.src || '';
-      } // Reset retry behavior for new source
-
-
-      if (this.resetRetryOnError_) {
-        this.resetRetryOnError_();
-      } // filter out invalid sources and turn our source into
-      // an array of source objects
-
-
-      var sources = filterSource(source); // if a source was passed in then it is invalid because
-      // it was filtered to a zero length Array. So we have to
-      // show an error
-
-      if (!sources.length) {
-        this.setTimeout(function () {
-          this.error({
-            code: 4,
-            message: this.options_.notSupportedMessage
-          });
-        }, 0);
-        return;
-      } // initial sources
-
-
-      this.changingSrc_ = true; // Only update the cached source list if we are not retrying a new source after error,
-      // since in that case we want to include the failed source(s) in the cache
-
-      if (!isRetry) {
-        this.cache_.sources = sources;
-      }
-
-      this.updateSourceCaches_(sources[0]); // middlewareSource is the source after it has been changed by middleware
-
-      setSource(this, sources[0], function (middlewareSource, mws) {
-        _this15.middleware_ = mws; // since sourceSet is async we have to update the cache again after we select a source since
-        // the source that is selected could be out of order from the cache update above this callback.
-
-        if (!isRetry) {
-          _this15.cache_.sources = sources;
-        }
-
-        _this15.updateSourceCaches_(middlewareSource);
-
-        var err = _this15.src_(middlewareSource);
-
-        if (err) {
-          if (sources.length > 1) {
-            return _this15.handleSrc_(sources.slice(1));
-          }
-
-          _this15.changingSrc_ = false; // We need to wrap this in a timeout to give folks a chance to add error event handlers
-
-          _this15.setTimeout(function () {
-            this.error({
-              code: 4,
-              message: this.options_.notSupportedMessage
-            });
-          }, 0); // we could not find an appropriate tech, but let's still notify the delegate that this is it
-          // this needs a better comment about why this is needed
-
-
-          _this15.triggerReady();
-
-          return;
-        }
-
-        setTech(mws, _this15.tech_);
-      }); // Try another available source if this one fails before playback.
-
-      if (this.options_.retryOnError && sources.length > 1) {
-        var retry = function retry() {
-          // Remove the error modal
-          _this15.error(null);
-
-          _this15.handleSrc_(sources.slice(1), true);
-        };
-
-        var stopListeningForErrors = function stopListeningForErrors() {
-          _this15.off('error', retry);
-        };
-
-        this.one('error', retry);
-        this.one('playing', stopListeningForErrors);
-
-        this.resetRetryOnError_ = function () {
-          _this15.off('error', retry);
-
-          _this15.off('playing', stopListeningForErrors);
-        };
-      }
-    }
-    /**
-     * Get or set the video source.
-     *
-     * @param {Tech~SourceObject|Tech~SourceObject[]|string} [source]
-     *        A SourceObject, an array of SourceObjects, or a string referencing
-     *        a URL to a media source. It is _highly recommended_ that an object
-     *        or array of objects is used here, so that source selection
-     *        algorithms can take the `type` into account.
-     *
-     *        If not provided, this method acts as a getter.
-     *
-     * @return {string|undefined}
-     *         If the `source` argument is missing, returns the current source
-     *         URL. Otherwise, returns nothing/undefined.
-     */
-    ;
-
-    _proto.src = function src(source) {
-      return this.handleSrc_(source, false);
-    }
-    /**
-     * Set the source object on the tech, returns a boolean that indicates whether
-     * there is a tech that can play the source or not
+     * Check if the media element can handle a source natively.
      *
      * @param {Tech~SourceObject} source
-     *        The source object to set on the Tech
-     *
-     * @return {boolean}
-     *         - True if there is no Tech to playback this source
-     *         - False otherwise
-     *
-     * @private
-     */
-    ;
-
-    _proto.src_ = function src_(source) {
-      var _this16 = this;
-
-      var sourceTech = this.selectSource([source]);
-
-      if (!sourceTech) {
-        return true;
-      }
-
-      if (!titleCaseEquals(sourceTech.tech, this.techName_)) {
-        this.changingSrc_ = true; // load this technology with the chosen source
-
-        this.loadTech_(sourceTech.tech, sourceTech.source);
-        this.tech_.ready(function () {
-          _this16.changingSrc_ = false;
-        });
-        return false;
-      } // wait until the tech is ready to set the source
-      // and set it synchronously if possible (#2326)
-
-
-      this.ready(function () {
-        // The setSource tech method was added with source handlers
-        // so older techs won't support it
-        // We need to check the direct prototype for the case where subclasses
-        // of the tech do not support source handlers
-        if (this.tech_.constructor.prototype.hasOwnProperty('setSource')) {
-          this.techCall_('setSource', source);
-        } else {
-          this.techCall_('src', source.src);
-        }
-
-        this.changingSrc_ = false;
-      }, true);
-      return false;
-    }
-    /**
-     * Begin loading the src data.
-     */
-    ;
-
-    _proto.load = function load() {
-      this.techCall_('load');
-    }
-    /**
-     * Reset the player. Loads the first tech in the techOrder,
-     * removes all the text tracks in the existing `tech`,
-     * and calls `reset` on the `tech`.
-     */
-    ;
-
-    _proto.reset = function reset() {
-      var _this17 = this;
-
-      var PromiseClass = this.options_.Promise || window.Promise;
-
-      if (this.paused() || !PromiseClass) {
-        this.doReset_();
-      } else {
-        var playPromise = this.play();
-        silencePromise(playPromise.then(function () {
-          return _this17.doReset_();
-        }));
-      }
-    };
-
-    _proto.doReset_ = function doReset_() {
-      if (this.tech_) {
-        this.tech_.clearTracks('text');
-      }
-
-      this.resetCache_();
-      this.poster('');
-      this.loadTech_(this.options_.techOrder[0], null);
-      this.techCall_('reset');
-      this.resetControlBarUI_();
-
-      if (isEvented(this)) {
-        this.trigger('playerreset');
-      }
-    }
-    /**
-     * Reset Control Bar's UI by calling sub-methods that reset
-     * all of Control Bar's components
-     */
-    ;
-
-    _proto.resetControlBarUI_ = function resetControlBarUI_() {
-      this.resetProgressBar_();
-      this.resetPlaybackRate_();
-      this.resetVolumeBar_();
-    }
-    /**
-     * Reset tech's progress so progress bar is reset in the UI
-     */
-    ;
-
-    _proto.resetProgressBar_ = function resetProgressBar_() {
-      this.currentTime(0);
-
-      var _ref3 = this.controlBar || {},
-          durationDisplay = _ref3.durationDisplay,
-          remainingTimeDisplay = _ref3.remainingTimeDisplay;
-
-      if (durationDisplay) {
-        durationDisplay.updateContent();
-      }
-
-      if (remainingTimeDisplay) {
-        remainingTimeDisplay.updateContent();
-      }
-    }
-    /**
-     * Reset Playback ratio
-     */
-    ;
-
-    _proto.resetPlaybackRate_ = function resetPlaybackRate_() {
-      this.playbackRate(this.defaultPlaybackRate());
-      this.handleTechRateChange_();
-    }
-    /**
-     * Reset Volume bar
-     */
-    ;
-
-    _proto.resetVolumeBar_ = function resetVolumeBar_() {
-      this.volume(1.0);
-      this.trigger('volumechange');
-    }
-    /**
-     * Returns all of the current source objects.
-     *
-     * @return {Tech~SourceObject[]}
-     *         The current source objects
-     */
-    ;
-
-    _proto.currentSources = function currentSources() {
-      var source = this.currentSource();
-      var sources = []; // assume `{}` or `{ src }`
-
-      if (Object.keys(source).length !== 0) {
-        sources.push(source);
-      }
-
-      return this.cache_.sources || sources;
-    }
-    /**
-     * Returns the current source object.
-     *
-     * @return {Tech~SourceObject}
-     *         The current source object
-     */
-    ;
-
-    _proto.currentSource = function currentSource() {
-      return this.cache_.source || {};
-    }
-    /**
-     * Returns the fully qualified URL of the current source value e.g. http://mysite.com/video.mp4
-     * Can be used in conjunction with `currentType` to assist in rebuilding the current source object.
-     *
-     * @return {string}
-     *         The current source
-     */
-    ;
-
-    _proto.currentSrc = function currentSrc() {
-      return this.currentSource() && this.currentSource().src || '';
-    }
-    /**
-     * Get the current source type e.g. video/mp4
-     * This can allow you rebuild the current source object so that you could load the same
-     * source and tech later
-     *
-     * @return {string}
-     *         The source MIME type
-     */
-    ;
-
-    _proto.currentType = function currentType() {
-      return this.currentSource() && this.currentSource().type || '';
-    }
-    /**
-     * Get or set the preload attribute
-     *
-     * @param {boolean} [value]
-     *        - true means that we should preload
-     *        - false means that we should not preload
-     *
-     * @return {string}
-     *         The preload attribute value when getting
-     */
-    ;
-
-    _proto.preload = function preload(value) {
-      if (value !== undefined) {
-        this.techCall_('setPreload', value);
-        this.options_.preload = value;
-        return;
-      }
-
-      return this.techGet_('preload');
-    }
-    /**
-     * Get or set the autoplay option. When this is a boolean it will
-     * modify the attribute on the tech. When this is a string the attribute on
-     * the tech will be removed and `Player` will handle autoplay on loadstarts.
-     *
-     * @param {boolean|string} [value]
-     *        - true: autoplay using the browser behavior
-     *        - false: do not autoplay
-     *        - 'play': call play() on every loadstart
-     *        - 'muted': call muted() then play() on every loadstart
-     *        - 'any': call play() on every loadstart. if that fails call muted() then play().
-     *        - *: values other than those listed here will be set `autoplay` to true
-     *
-     * @return {boolean|string}
-     *         The current value of autoplay when getting
-     */
-    ;
-
-    _proto.autoplay = function autoplay(value) {
-      // getter usage
-      if (value === undefined) {
-        return this.options_.autoplay || false;
-      }
-
-      var techAutoplay; // if the value is a valid string set it to that, or normalize `true` to 'play', if need be
-
-      if (typeof value === 'string' && /(any|play|muted)/.test(value) || value === true && this.options_.normalizeAutoplay) {
-        this.options_.autoplay = value;
-        this.manualAutoplay_(typeof value === 'string' ? value : 'play');
-        techAutoplay = false; // any falsy value sets autoplay to false in the browser,
-        // lets do the same
-      } else if (!value) {
-        this.options_.autoplay = false; // any other value (ie truthy) sets autoplay to true
-      } else {
-        this.options_.autoplay = true;
-      }
-
-      techAutoplay = typeof techAutoplay === 'undefined' ? this.options_.autoplay : techAutoplay; // if we don't have a tech then we do not queue up
-      // a setAutoplay call on tech ready. We do this because the
-      // autoplay option will be passed in the constructor and we
-      // do not need to set it twice
-
-      if (this.tech_) {
-        this.techCall_('setAutoplay', techAutoplay);
-      }
-    }
-    /**
-     * Set or unset the playsinline attribute.
-     * Playsinline tells the browser that non-fullscreen playback is preferred.
-     *
-     * @param {boolean} [value]
-     *        - true means that we should try to play inline by default
-     *        - false means that we should use the browser's default playback mode,
-     *          which in most cases is inline. iOS Safari is a notable exception
-     *          and plays fullscreen by default.
-     *
-     * @return {string|Player}
-     *         - the current value of playsinline
-     *         - the player when setting
-     *
-     * @see [Spec]{@link https://html.spec.whatwg.org/#attr-video-playsinline}
-     */
-    ;
-
-    _proto.playsinline = function playsinline(value) {
-      if (value !== undefined) {
-        this.techCall_('setPlaysinline', value);
-        this.options_.playsinline = value;
-        return this;
-      }
-
-      return this.techGet_('playsinline');
-    }
-    /**
-     * Get or set the loop attribute on the video element.
-     *
-     * @param {boolean} [value]
-     *        - true means that we should loop the video
-     *        - false means that we should not loop the video
-     *
-     * @return {boolean}
-     *         The current value of loop when getting
-     */
-    ;
-
-    _proto.loop = function loop(value) {
-      if (value !== undefined) {
-        this.techCall_('setLoop', value);
-        this.options_.loop = value;
-        return;
-      }
-
-      return this.techGet_('loop');
-    }
-    /**
-     * Get or set the poster image source url
-     *
-     * @fires Player#posterchange
-     *
-     * @param {string} [src]
-     *        Poster image source URL
-     *
-     * @return {string}
-     *         The current value of poster when getting
-     */
-    ;
-
-    _proto.poster = function poster(src) {
-      if (src === undefined) {
-        return this.poster_;
-      } // The correct way to remove a poster is to set as an empty string
-      // other falsey values will throw errors
-
-
-      if (!src) {
-        src = '';
-      }
-
-      if (src === this.poster_) {
-        return;
-      } // update the internal poster variable
-
-
-      this.poster_ = src; // update the tech's poster
-
-      this.techCall_('setPoster', src);
-      this.isPosterFromTech_ = false; // alert components that the poster has been set
-
-      /**
-       * This event fires when the poster image is changed on the player.
-       *
-       * @event Player#posterchange
-       * @type {EventTarget~Event}
-       */
-
-      this.trigger('posterchange');
-    }
-    /**
-     * Some techs (e.g. YouTube) can provide a poster source in an
-     * asynchronous way. We want the poster component to use this
-     * poster source so that it covers up the tech's controls.
-     * (YouTube's play button). However we only want to use this
-     * source if the player user hasn't set a poster through
-     * the normal APIs.
-     *
-     * @fires Player#posterchange
-     * @listens Tech#posterchange
-     * @private
-     */
-    ;
-
-    _proto.handleTechPosterChange_ = function handleTechPosterChange_() {
-      if ((!this.poster_ || this.options_.techCanOverridePoster) && this.tech_ && this.tech_.poster) {
-        var newPoster = this.tech_.poster() || '';
-
-        if (newPoster !== this.poster_) {
-          this.poster_ = newPoster;
-          this.isPosterFromTech_ = true; // Let components know the poster has changed
-
-          this.trigger('posterchange');
-        }
-      }
-    }
-    /**
-     * Get or set whether or not the controls are showing.
-     *
-     * @fires Player#controlsenabled
-     *
-     * @param {boolean} [bool]
-     *        - true to turn controls on
-     *        - false to turn controls off
-     *
-     * @return {boolean}
-     *         The current value of controls when getting
-     */
-    ;
-
-    _proto.controls = function controls(bool) {
-      if (bool === undefined) {
-        return !!this.controls_;
-      }
-
-      bool = !!bool; // Don't trigger a change event unless it actually changed
-
-      if (this.controls_ === bool) {
-        return;
-      }
-
-      this.controls_ = bool;
-
-      if (this.usingNativeControls()) {
-        this.techCall_('setControls', bool);
-      }
-
-      if (this.controls_) {
-        this.removeClass('vjs-controls-disabled');
-        this.addClass('vjs-controls-enabled');
-        /**
-         * @event Player#controlsenabled
-         * @type {EventTarget~Event}
-         */
-
-        this.trigger('controlsenabled');
-
-        if (!this.usingNativeControls()) {
-          this.addTechControlsListeners_();
-        }
-      } else {
-        this.removeClass('vjs-controls-enabled');
-        this.addClass('vjs-controls-disabled');
-        /**
-         * @event Player#controlsdisabled
-         * @type {EventTarget~Event}
-         */
-
-        this.trigger('controlsdisabled');
-
-        if (!this.usingNativeControls()) {
-          this.removeTechControlsListeners_();
-        }
-      }
-    }
-    /**
-     * Toggle native controls on/off. Native controls are the controls built into
-     * devices (e.g. default iPhone controls) or other techs
-     * (e.g. Vimeo Controls)
-     * **This should only be set by the current tech, because only the tech knows
-     * if it can support native controls**
-     *
-     * @fires Player#usingnativecontrols
-     * @fires Player#usingcustomcontrols
-     *
-     * @param {boolean} [bool]
-     *        - true to turn native controls on
-     *        - false to turn native controls off
-     *
-     * @return {boolean}
-     *         The current value of native controls when getting
-     */
-    ;
-
-    _proto.usingNativeControls = function usingNativeControls(bool) {
-      if (bool === undefined) {
-        return !!this.usingNativeControls_;
-      }
-
-      bool = !!bool; // Don't trigger a change event unless it actually changed
-
-      if (this.usingNativeControls_ === bool) {
-        return;
-      }
-
-      this.usingNativeControls_ = bool;
-
-      if (this.usingNativeControls_) {
-        this.addClass('vjs-using-native-controls');
-        /**
-         * player is using the native device controls
-         *
-         * @event Player#usingnativecontrols
-         * @type {EventTarget~Event}
-         */
-
-        this.trigger('usingnativecontrols');
-      } else {
-        this.removeClass('vjs-using-native-controls');
-        /**
-         * player is using the custom HTML controls
-         *
-         * @event Player#usingcustomcontrols
-         * @type {EventTarget~Event}
-         */
-
-        this.trigger('usingcustomcontrols');
-      }
-    }
-    /**
-     * Set or get the current MediaError
-     *
-     * @fires Player#error
-     *
-     * @param  {MediaError|string|number} [err]
-     *         A MediaError or a string/number to be turned
-     *         into a MediaError
-     *
-     * @return {MediaError|null}
-     *         The current MediaError when getting (or null)
-     */
-    ;
-
-    _proto.error = function error(err) {
-      var _this18 = this;
-
-      if (err === undefined) {
-        return this.error_ || null;
-      } // allow hooks to modify error object
-
-
-      hooks('beforeerror').forEach(function (hookFunction) {
-        var newErr = hookFunction(_this18, err);
-
-        if (!(isObject$1(newErr) && !Array.isArray(newErr) || typeof newErr === 'string' || typeof newErr === 'number' || newErr === null)) {
-          _this18.log.error('please return a value that MediaError expects in beforeerror hooks');
-
-          return;
-        }
-
-        err = newErr;
-      }); // Suppress the first error message for no compatible source until
-      // user interaction
-
-      if (this.options_.suppressNotSupportedError && err && err.code === 4) {
-        var triggerSuppressedError = function triggerSuppressedError() {
-          this.error(err);
-        };
-
-        this.options_.suppressNotSupportedError = false;
-        this.any(['click', 'touchstart'], triggerSuppressedError);
-        this.one('loadstart', function () {
-          this.off(['click', 'touchstart'], triggerSuppressedError);
-        });
-        return;
-      } // restoring to default
-
-
-      if (err === null) {
-        this.error_ = err;
-        this.removeClass('vjs-error');
-
-        if (this.errorDisplay) {
-          this.errorDisplay.close();
-        }
-
-        return;
-      }
-
-      this.error_ = new MediaError(err); // add the vjs-error classname to the player
-
-      this.addClass('vjs-error'); // log the name of the error type and any message
-      // IE11 logs "[object object]" and required you to expand message to see error object
-
-      log$1.error("(CODE:" + this.error_.code + " " + MediaError.errorTypes[this.error_.code] + ")", this.error_.message, this.error_);
-      /**
-       * @event Player#error
-       * @type {EventTarget~Event}
-       */
-
-      this.trigger('error'); // notify hooks of the per player error
-
-      hooks('error').forEach(function (hookFunction) {
-        return hookFunction(_this18, _this18.error_);
-      });
-      return;
-    }
-    /**
-     * Report user activity
-     *
-     * @param {Object} event
-     *        Event object
-     */
-    ;
-
-    _proto.reportUserActivity = function reportUserActivity(event) {
-      this.userActivity_ = true;
-    }
-    /**
-     * Get/set if user is active
-     *
-     * @fires Player#useractive
-     * @fires Player#userinactive
-     *
-     * @param {boolean} [bool]
-     *        - true if the user is active
-     *        - false if the user is inactive
-     *
-     * @return {boolean}
-     *         The current value of userActive when getting
-     */
-    ;
-
-    _proto.userActive = function userActive(bool) {
-      if (bool === undefined) {
-        return this.userActive_;
-      }
-
-      bool = !!bool;
-
-      if (bool === this.userActive_) {
-        return;
-      }
-
-      this.userActive_ = bool;
-
-      if (this.userActive_) {
-        this.userActivity_ = true;
-        this.removeClass('vjs-user-inactive');
-        this.addClass('vjs-user-active');
-        /**
-         * @event Player#useractive
-         * @type {EventTarget~Event}
-         */
-
-        this.trigger('useractive');
-        return;
-      } // Chrome/Safari/IE have bugs where when you change the cursor it can
-      // trigger a mousemove event. This causes an issue when you're hiding
-      // the cursor when the user is inactive, and a mousemove signals user
-      // activity. Making it impossible to go into inactive mode. Specifically
-      // this happens in fullscreen when we really need to hide the cursor.
-      //
-      // When this gets resolved in ALL browsers it can be removed
-      // https://code.google.com/p/chromium/issues/detail?id=103041
-
-
-      if (this.tech_) {
-        this.tech_.one('mousemove', function (e) {
-          e.stopPropagation();
-          e.preventDefault();
-        });
-      }
-
-      this.userActivity_ = false;
-      this.removeClass('vjs-user-active');
-      this.addClass('vjs-user-inactive');
-      /**
-       * @event Player#userinactive
-       * @type {EventTarget~Event}
-       */
-
-      this.trigger('userinactive');
-    }
-    /**
-     * Listen for user activity based on timeout value
-     *
-     * @private
-     */
-    ;
-
-    _proto.listenForUserActivity_ = function listenForUserActivity_() {
-      var mouseInProgress;
-      var lastMoveX;
-      var lastMoveY;
-      var handleActivity = bind(this, this.reportUserActivity);
-
-      var handleMouseMove = function handleMouseMove(e) {
-        // #1068 - Prevent mousemove spamming
-        // Chrome Bug: https://code.google.com/p/chromium/issues/detail?id=366970
-        if (e.screenX !== lastMoveX || e.screenY !== lastMoveY) {
-          lastMoveX = e.screenX;
-          lastMoveY = e.screenY;
-          handleActivity();
-        }
-      };
-
-      var handleMouseDown = function handleMouseDown() {
-        handleActivity(); // For as long as the they are touching the device or have their mouse down,
-        // we consider them active even if they're not moving their finger or mouse.
-        // So we want to continue to update that they are active
-
-        this.clearInterval(mouseInProgress); // Setting userActivity=true now and setting the interval to the same time
-        // as the activityCheck interval (250) should ensure we never miss the
-        // next activityCheck
-
-        mouseInProgress = this.setInterval(handleActivity, 250);
-      };
-
-      var handleMouseUpAndMouseLeave = function handleMouseUpAndMouseLeave(event) {
-        handleActivity(); // Stop the interval that maintains activity if the mouse/touch is down
-
-        this.clearInterval(mouseInProgress);
-      }; // Any mouse movement will be considered user activity
-
-
-      this.on('mousedown', handleMouseDown);
-      this.on('mousemove', handleMouseMove);
-      this.on('mouseup', handleMouseUpAndMouseLeave);
-      this.on('mouseleave', handleMouseUpAndMouseLeave);
-      var controlBar = this.getChild('controlBar'); // Fixes bug on Android & iOS where when tapping progressBar (when control bar is displayed)
-      // controlBar would no longer be hidden by default timeout.
-
-      if (controlBar && !IS_IOS && !IS_ANDROID) {
-        controlBar.on('mouseenter', function (event) {
-          if (this.player().options_.inactivityTimeout !== 0) {
-            this.player().cache_.inactivityTimeout = this.player().options_.inactivityTimeout;
-          }
-
-          this.player().options_.inactivityTimeout = 0;
-        });
-        controlBar.on('mouseleave', function (event) {
-          this.player().options_.inactivityTimeout = this.player().cache_.inactivityTimeout;
-        });
-      } // Listen for keyboard navigation
-      // Shouldn't need to use inProgress interval because of key repeat
-
-
-      this.on('keydown', handleActivity);
-      this.on('keyup', handleActivity); // Run an interval every 250 milliseconds instead of stuffing everything into
-      // the mousemove/touchmove function itself, to prevent performance degradation.
-      // `this.reportUserActivity` simply sets this.userActivity_ to true, which
-      // then gets picked up by this loop
-      // http://ejohn.org/blog/learning-from-twitter/
-
-      var inactivityTimeout;
-      this.setInterval(function () {
-        // Check to see if mouse/touch activity has happened
-        if (!this.userActivity_) {
-          return;
-        } // Reset the activity tracker
-
-
-        this.userActivity_ = false; // If the user state was inactive, set the state to active
-
-        this.userActive(true); // Clear any existing inactivity timeout to start the timer over
-
-        this.clearTimeout(inactivityTimeout);
-        var timeout = this.options_.inactivityTimeout;
-
-        if (timeout <= 0) {
-          return;
-        } // In <timeout> milliseconds, if no more activity has occurred the
-        // user will be considered inactive
-
-
-        inactivityTimeout = this.setTimeout(function () {
-          // Protect against the case where the inactivityTimeout can trigger just
-          // before the next user activity is picked up by the activity check loop
-          // causing a flicker
-          if (!this.userActivity_) {
-            this.userActive(false);
-          }
-        }, timeout);
-      }, 250);
-    }
-    /**
-     * Gets or sets the current playback rate. A playback rate of
-     * 1.0 represents normal speed and 0.5 would indicate half-speed
-     * playback, for instance.
-     *
-     * @see https://html.spec.whatwg.org/multipage/embedded-content.html#dom-media-playbackrate
-     *
-     * @param {number} [rate]
-     *       New playback rate to set.
-     *
-     * @return {number}
-     *         The current playback rate when getting or 1.0
-     */
-    ;
-
-    _proto.playbackRate = function playbackRate(rate) {
-      if (rate !== undefined) {
-        // NOTE: this.cache_.lastPlaybackRate is set from the tech handler
-        // that is registered above
-        this.techCall_('setPlaybackRate', rate);
-        return;
-      }
-
-      if (this.tech_ && this.tech_.featuresPlaybackRate) {
-        return this.cache_.lastPlaybackRate || this.techGet_('playbackRate');
-      }
-
-      return 1.0;
-    }
-    /**
-     * Gets or sets the current default playback rate. A default playback rate of
-     * 1.0 represents normal speed and 0.5 would indicate half-speed playback, for instance.
-     * defaultPlaybackRate will only represent what the initial playbackRate of a video was, not
-     * not the current playbackRate.
-     *
-     * @see https://html.spec.whatwg.org/multipage/embedded-content.html#dom-media-defaultplaybackrate
-     *
-     * @param {number} [rate]
-     *       New default playback rate to set.
-     *
-     * @return {number|Player}
-     *         - The default playback rate when getting or 1.0
-     *         - the player when setting
-     */
-    ;
-
-    _proto.defaultPlaybackRate = function defaultPlaybackRate(rate) {
-      if (rate !== undefined) {
-        return this.techCall_('setDefaultPlaybackRate', rate);
-      }
-
-      if (this.tech_ && this.tech_.featuresPlaybackRate) {
-        return this.techGet_('defaultPlaybackRate');
-      }
-
-      return 1.0;
-    }
-    /**
-     * Gets or sets the audio flag
-     *
-     * @param {boolean} bool
-     *        - true signals that this is an audio player
-     *        - false signals that this is not an audio player
-     *
-     * @return {boolean}
-     *         The current value of isAudio when getting
-     */
-    ;
-
-    _proto.isAudio = function isAudio(bool) {
-      if (bool !== undefined) {
-        this.isAudio_ = !!bool;
-        return;
-      }
-
-      return !!this.isAudio_;
-    };
-
-    _proto.enableAudioOnlyUI_ = function enableAudioOnlyUI_() {
-      var _this19 = this;
-
-      // Update styling immediately to show the control bar so we can get its height
-      this.addClass('vjs-audio-only-mode');
-      var playerChildren = this.children();
-      var controlBar = this.getChild('ControlBar');
-      var controlBarHeight = controlBar && controlBar.currentHeight(); // Hide all player components except the control bar. Control bar components
-      // needed only for video are hidden with CSS
-
-      playerChildren.forEach(function (child) {
-        if (child === controlBar) {
-          return;
-        }
-
-        if (child.el_ && !child.hasClass('vjs-hidden')) {
-          child.hide();
-
-          _this19.audioOnlyCache_.hiddenChildren.push(child);
-        }
-      });
-      this.audioOnlyCache_.playerHeight = this.currentHeight(); // Set the player height the same as the control bar
-
-      this.height(controlBarHeight);
-      this.trigger('audioonlymodechange');
-    };
-
-    _proto.disableAudioOnlyUI_ = function disableAudioOnlyUI_() {
-      this.removeClass('vjs-audio-only-mode'); // Show player components that were previously hidden
-
-      this.audioOnlyCache_.hiddenChildren.forEach(function (child) {
-        return child.show();
-      }); // Reset player height
-
-      this.height(this.audioOnlyCache_.playerHeight);
-      this.trigger('audioonlymodechange');
-    }
-    /**
-     * Get the current audioOnlyMode state or set audioOnlyMode to true or false.
-     *
-     * Setting this to `true` will hide all player components except the control bar,
-     * as well as control bar components needed only for video.
-     *
-     * @param {boolean} [value]
-     *         The value to set audioOnlyMode to.
-     *
-     * @return {Promise|boolean}
-     *        A Promise is returned when setting the state, and a boolean when getting
-     *        the present state
-     */
-    ;
-
-    _proto.audioOnlyMode = function audioOnlyMode(value) {
-      var _this20 = this;
-
-      if (typeof value !== 'boolean' || value === this.audioOnlyMode_) {
-        return this.audioOnlyMode_;
-      }
-
-      this.audioOnlyMode_ = value;
-      var PromiseClass = this.options_.Promise || window.Promise;
-
-      if (PromiseClass) {
-        // Enable Audio Only Mode
-        if (value) {
-          var exitPromises = []; // Fullscreen and PiP are not supported in audioOnlyMode, so exit if we need to.
-
-          if (this.isInPictureInPicture()) {
-            exitPromises.push(this.exitPictureInPicture());
-          }
-
-          if (this.isFullscreen()) {
-            exitPromises.push(this.exitFullscreen());
-          }
-
-          if (this.audioPosterMode()) {
-            exitPromises.push(this.audioPosterMode(false));
-          }
-
-          return PromiseClass.all(exitPromises).then(function () {
-            return _this20.enableAudioOnlyUI_();
-          });
-        } // Disable Audio Only Mode
-
-
-        return PromiseClass.resolve().then(function () {
-          return _this20.disableAudioOnlyUI_();
-        });
-      }
-
-      if (value) {
-        if (this.isInPictureInPicture()) {
-          this.exitPictureInPicture();
-        }
-
-        if (this.isFullscreen()) {
-          this.exitFullscreen();
-        }
-
-        this.enableAudioOnlyUI_();
-      } else {
-        this.disableAudioOnlyUI_();
-      }
-    };
-
-    _proto.enablePosterModeUI_ = function enablePosterModeUI_() {
-      // Hide the video element and show the poster image to enable posterModeUI
-      var tech = this.tech_ && this.tech_;
-      tech.hide();
-      this.addClass('vjs-audio-poster-mode');
-      this.trigger('audiopostermodechange');
-    };
-
-    _proto.disablePosterModeUI_ = function disablePosterModeUI_() {
-      // Show the video element and hide the poster image to disable posterModeUI
-      var tech = this.tech_ && this.tech_;
-      tech.show();
-      this.removeClass('vjs-audio-poster-mode');
-      this.trigger('audiopostermodechange');
-    }
-    /**
-     * Get the current audioPosterMode state or set audioPosterMode to true or false
-     *
-     * @param {boolean} [value]
-     *         The value to set audioPosterMode to.
-     *
-     * @return {Promise|boolean}
-     *         A Promise is returned when setting the state, and a boolean when getting
-     *        the present state
-     */
-    ;
-
-    _proto.audioPosterMode = function audioPosterMode(value) {
-      var _this21 = this;
-
-      if (typeof value !== 'boolean' || value === this.audioPosterMode_) {
-        return this.audioPosterMode_;
-      }
-
-      this.audioPosterMode_ = value;
-      var PromiseClass = this.options_.Promise || window.Promise;
-
-      if (PromiseClass) {
-        if (value) {
-          if (this.audioOnlyMode()) {
-            var audioOnlyModePromise = this.audioOnlyMode(false);
-            return audioOnlyModePromise.then(function () {
-              // enable audio poster mode after audio only mode is disabled
-              _this21.enablePosterModeUI_();
-            });
-          }
-
-          return PromiseClass.resolve().then(function () {
-            // enable audio poster mode
-            _this21.enablePosterModeUI_();
-          });
-        }
-
-        return PromiseClass.resolve().then(function () {
-          // disable audio poster mode
-          _this21.disablePosterModeUI_();
-        });
-      }
-
-      if (value) {
-        if (this.audioOnlyMode()) {
-          this.audioOnlyMode(false);
-        }
-
-        this.enablePosterModeUI_();
-        return;
-      }
-
-      this.disablePosterModeUI_();
-    }
-    /**
-     * A helper method for adding a {@link TextTrack} to our
-     * {@link TextTrackList}.
-     *
-     * In addition to the W3C settings we allow adding additional info through options.
-     *
-     * @see http://www.w3.org/html/wg/drafts/html/master/embedded-content-0.html#dom-media-addtexttrack
-     *
-     * @param {string} [kind]
-     *        the kind of TextTrack you are adding
-     *
-     * @param {string} [label]
-     *        the label to give the TextTrack label
-     *
-     * @param {string} [language]
-     *        the language to set on the TextTrack
-     *
-     * @return {TextTrack|undefined}
-     *         the TextTrack that was added or undefined
-     *         if there is no tech
-     */
-    ;
-
-    _proto.addTextTrack = function addTextTrack(kind, label, language) {
-      if (this.tech_) {
-        return this.tech_.addTextTrack(kind, label, language);
-      }
-    }
-    /**
-     * Create a remote {@link TextTrack} and an {@link HTMLTrackElement}.
-     * When manualCleanup is set to false, the track will be automatically removed
-     * on source changes.
-     *
-     * @param {Object} options
-     *        Options to pass to {@link HTMLTrackElement} during creation. See
-     *        {@link HTMLTrackElement} for object properties that you should use.
-     *
-     * @param {boolean} [manualCleanup=true] if set to false, the TextTrack will be
-     *                                       removed on a source change
-     *
-     * @return {HtmlTrackElement}
-     *         the HTMLTrackElement that was created and added
-     *         to the HtmlTrackElementList and the remote
-     *         TextTrackList
-     *
-     * @deprecated The default value of the "manualCleanup" parameter will default
-     *             to "false" in upcoming versions of Video.js
-     */
-    ;
-
-    _proto.addRemoteTextTrack = function addRemoteTextTrack(options, manualCleanup) {
-      if (this.tech_) {
-        return this.tech_.addRemoteTextTrack(options, manualCleanup);
-      }
-    }
-    /**
-     * Remove a remote {@link TextTrack} from the respective
-     * {@link TextTrackList} and {@link HtmlTrackElementList}.
-     *
-     * @param {Object} track
-     *        Remote {@link TextTrack} to remove
-     *
-     * @return {undefined}
-     *         does not return anything
-     */
-    ;
-
-    _proto.removeRemoteTextTrack = function removeRemoteTextTrack(obj) {
-      if (obj === void 0) {
-        obj = {};
-      }
-
-      var _obj = obj,
-          track = _obj.track;
-
-      if (!track) {
-        track = obj;
-      } // destructure the input into an object with a track argument, defaulting to arguments[0]
-      // default the whole argument to an empty object if nothing was passed in
-
-
-      if (this.tech_) {
-        return this.tech_.removeRemoteTextTrack(track);
-      }
-    }
-    /**
-     * Gets available media playback quality metrics as specified by the W3C's Media
-     * Playback Quality API.
-     *
-     * @see [Spec]{@link https://wicg.github.io/media-playback-quality}
-     *
-     * @return {Object|undefined}
-     *         An object with supported media playback quality metrics or undefined if there
-     *         is no tech or the tech does not support it.
-     */
-    ;
-
-    _proto.getVideoPlaybackQuality = function getVideoPlaybackQuality() {
-      return this.techGet_('getVideoPlaybackQuality');
-    }
-    /**
-     * Get video width
-     *
-     * @return {number}
-     *         current video width
-     */
-    ;
-
-    _proto.videoWidth = function videoWidth() {
-      return this.tech_ && this.tech_.videoWidth && this.tech_.videoWidth() || 0;
-    }
-    /**
-     * Get video height
-     *
-     * @return {number}
-     *         current video height
-     */
-    ;
-
-    _proto.videoHeight = function videoHeight() {
-      return this.tech_ && this.tech_.videoHeight && this.tech_.videoHeight() || 0;
-    }
-    /**
-     * The player's language code.
-     *
-     * Changing the language will trigger
-     * [languagechange]{@link Player#event:languagechange}
-     * which Components can use to update control text.
-     * ClickableComponent will update its control text by default on
-     * [languagechange]{@link Player#event:languagechange}.
-     *
-     * @fires Player#languagechange
-     *
-     * @param {string} [code]
-     *        the language code to set the player to
-     *
-     * @return {string}
-     *         The current language code when getting
-     */
-    ;
-
-    _proto.language = function language(code) {
-      if (code === undefined) {
-        return this.language_;
-      }
-
-      if (this.language_ !== String(code).toLowerCase()) {
-        this.language_ = String(code).toLowerCase(); // during first init, it's possible some things won't be evented
-
-        if (isEvented(this)) {
-          /**
-          * fires when the player language change
-          *
-          * @event Player#languagechange
-          * @type {EventTarget~Event}
-          */
-          this.trigger('languagechange');
-        }
-      }
-    }
-    /**
-     * Get the player's language dictionary
-     * Merge every time, because a newly added plugin might call videojs.addLanguage() at any time
-     * Languages specified directly in the player options have precedence
-     *
-     * @return {Array}
-     *         An array of of supported languages
-     */
-    ;
-
-    _proto.languages = function languages() {
-      return mergeOptions$3(Player.prototype.options_.languages, this.languages_);
-    }
-    /**
-     * returns a JavaScript object reperesenting the current track
-     * information. **DOES not return it as JSON**
-     *
-     * @return {Object}
-     *         Object representing the current of track info
-     */
-    ;
-
-    _proto.toJSON = function toJSON() {
-      var options = mergeOptions$3(this.options_);
-      var tracks = options.tracks;
-      options.tracks = [];
-
-      for (var i = 0; i < tracks.length; i++) {
-        var track = tracks[i]; // deep merge tracks and null out player so no circular references
-
-        track = mergeOptions$3(track);
-        track.player = undefined;
-        options.tracks[i] = track;
-      }
-
-      return options;
-    }
-    /**
-     * Creates a simple modal dialog (an instance of the {@link ModalDialog}
-     * component) that immediately overlays the player with arbitrary
-     * content and removes itself when closed.
-     *
-     * @param {string|Function|Element|Array|null} content
-     *        Same as {@link ModalDialog#content}'s param of the same name.
-     *        The most straight-forward usage is to provide a string or DOM
-     *        element.
+     *         The source object
      *
      * @param {Object} [options]
-     *        Extra options which will be passed on to the {@link ModalDialog}.
+     *         Options to be passed to the tech.
      *
-     * @return {ModalDialog}
-     *         the {@link ModalDialog} that was created
+     * @return {string}
+     *         'probably', 'maybe', or '' (empty string).
      */
-    ;
+    Html5.nativeSourceHandler.canHandleSource = function (source, options) {
+        // If a type was provided we should rely on that
+        if (source.type) {
+            return Html5.nativeSourceHandler.canPlayType(source.type);
 
-    _proto.createModal = function createModal(content, options) {
-      var _this22 = this;
+            // If no type, fall back to checking 'video/[EXTENSION]'
+        } else if (source.src) {
+            const ext = getFileExtension(source.src);
+            return Html5.nativeSourceHandler.canPlayType(`video/${ext}`);
+        }
+        return '';
+    };
 
-      options = options || {};
-      options.content = content || '';
-      var modal = new ModalDialog(this, options);
-      this.addChild(modal);
-      modal.on('dispose', function () {
-        _this22.removeChild(modal);
-      });
-      modal.open();
-      return modal;
-    }
     /**
-     * Change breakpoint classes when the player resizes.
+     * Pass the source to the native media element.
      *
-     * @private
+     * @param {Tech~SourceObject} source
+     *        The source object
+     *
+     * @param {Html5} tech
+     *        The instance of the Html5 tech
+     *
+     * @param {Object} [options]
+     *        The options to pass to the source
      */
-    ;
+    Html5.nativeSourceHandler.handleSource = function (source, tech, options) {
+        tech.setSrc(source.src);
+    };
 
-    _proto.updateCurrentBreakpoint_ = function updateCurrentBreakpoint_() {
-      if (!this.responsive()) {
-        return;
-      }
+    /**
+     * A noop for the native dispose function, as cleanup is not needed.
+     */
+    Html5.nativeSourceHandler.dispose = function () {};
 
-      var currentBreakpoint = this.currentBreakpoint();
-      var currentWidth = this.currentWidth();
+    // Register the native source handler
+    Html5.registerSourceHandler(Html5.nativeSourceHandler);
+    Tech.registerTech('Html5', Html5);
 
-      for (var i = 0; i < BREAKPOINT_ORDER.length; i++) {
-        var candidateBreakpoint = BREAKPOINT_ORDER[i];
-        var maxWidth = this.breakpoints_[candidateBreakpoint];
+    /**
+     * @file player.js
+     */
 
-        if (currentWidth <= maxWidth) {
-          // The current breakpoint did not change, nothing to do.
-          if (currentBreakpoint === candidateBreakpoint) {
+        // The following tech events are simply re-triggered
+        // on the player when they happen
+    const TECH_EVENTS_RETRIGGER = [
+            /**
+             * Fired while the user agent is downloading media data.
+             *
+             * @event Player#progress
+             * @type {Event}
+             */
+            /**
+             * Retrigger the `progress` event that was triggered by the {@link Tech}.
+             *
+             * @private
+             * @method Player#handleTechProgress_
+             * @fires Player#progress
+             * @listens Tech#progress
+             */
+            'progress',
+            /**
+             * Fires when the loading of an audio/video is aborted.
+             *
+             * @event Player#abort
+             * @type {Event}
+             */
+            /**
+             * Retrigger the `abort` event that was triggered by the {@link Tech}.
+             *
+             * @private
+             * @method Player#handleTechAbort_
+             * @fires Player#abort
+             * @listens Tech#abort
+             */
+            'abort',
+            /**
+             * Fires when the browser is intentionally not getting media data.
+             *
+             * @event Player#suspend
+             * @type {Event}
+             */
+            /**
+             * Retrigger the `suspend` event that was triggered by the {@link Tech}.
+             *
+             * @private
+             * @method Player#handleTechSuspend_
+             * @fires Player#suspend
+             * @listens Tech#suspend
+             */
+            'suspend',
+            /**
+             * Fires when the current playlist is empty.
+             *
+             * @event Player#emptied
+             * @type {Event}
+             */
+            /**
+             * Retrigger the `emptied` event that was triggered by the {@link Tech}.
+             *
+             * @private
+             * @method Player#handleTechEmptied_
+             * @fires Player#emptied
+             * @listens Tech#emptied
+             */
+            'emptied',
+            /**
+             * Fires when the browser is trying to get media data, but data is not available.
+             *
+             * @event Player#stalled
+             * @type {Event}
+             */
+            /**
+             * Retrigger the `stalled` event that was triggered by the {@link Tech}.
+             *
+             * @private
+             * @method Player#handleTechStalled_
+             * @fires Player#stalled
+             * @listens Tech#stalled
+             */
+            'stalled',
+            /**
+             * Fires when the browser has loaded meta data for the audio/video.
+             *
+             * @event Player#loadedmetadata
+             * @type {Event}
+             */
+            /**
+             * Retrigger the `loadedmetadata` event that was triggered by the {@link Tech}.
+             *
+             * @private
+             * @method Player#handleTechLoadedmetadata_
+             * @fires Player#loadedmetadata
+             * @listens Tech#loadedmetadata
+             */
+            'loadedmetadata',
+            /**
+             * Fires when the browser has loaded the current frame of the audio/video.
+             *
+             * @event Player#loadeddata
+             * @type {event}
+             */
+            /**
+             * Retrigger the `loadeddata` event that was triggered by the {@link Tech}.
+             *
+             * @private
+             * @method Player#handleTechLoaddeddata_
+             * @fires Player#loadeddata
+             * @listens Tech#loadeddata
+             */
+            'loadeddata',
+            /**
+             * Fires when the current playback position has changed.
+             *
+             * @event Player#timeupdate
+             * @type {event}
+             */
+            /**
+             * Retrigger the `timeupdate` event that was triggered by the {@link Tech}.
+             *
+             * @private
+             * @method Player#handleTechTimeUpdate_
+             * @fires Player#timeupdate
+             * @listens Tech#timeupdate
+             */
+            'timeupdate',
+            /**
+             * Fires when the video's intrinsic dimensions change
+             *
+             * @event Player#resize
+             * @type {event}
+             */
+            /**
+             * Retrigger the `resize` event that was triggered by the {@link Tech}.
+             *
+             * @private
+             * @method Player#handleTechResize_
+             * @fires Player#resize
+             * @listens Tech#resize
+             */
+            'resize',
+            /**
+             * Fires when the volume has been changed
+             *
+             * @event Player#volumechange
+             * @type {event}
+             */
+            /**
+             * Retrigger the `volumechange` event that was triggered by the {@link Tech}.
+             *
+             * @private
+             * @method Player#handleTechVolumechange_
+             * @fires Player#volumechange
+             * @listens Tech#volumechange
+             */
+            'volumechange',
+            /**
+             * Fires when the text track has been changed
+             *
+             * @event Player#texttrackchange
+             * @type {event}
+             */
+            /**
+             * Retrigger the `texttrackchange` event that was triggered by the {@link Tech}.
+             *
+             * @private
+             * @method Player#handleTechTexttrackchange_
+             * @fires Player#texttrackchange
+             * @listens Tech#texttrackchange
+             */
+            'texttrackchange'];
+
+    // events to queue when playback rate is zero
+    // this is a hash for the sole purpose of mapping non-camel-cased event names
+    // to camel-cased function names
+    const TECH_EVENTS_QUEUE = {
+        canplay: 'CanPlay',
+        canplaythrough: 'CanPlayThrough',
+        playing: 'Playing',
+        seeked: 'Seeked'
+    };
+    const BREAKPOINT_ORDER = ['tiny', 'xsmall', 'small', 'medium', 'large', 'xlarge', 'huge'];
+    const BREAKPOINT_CLASSES = {};
+
+    // grep: vjs-layout-tiny
+    // grep: vjs-layout-x-small
+    // grep: vjs-layout-small
+    // grep: vjs-layout-medium
+    // grep: vjs-layout-large
+    // grep: vjs-layout-x-large
+    // grep: vjs-layout-huge
+    BREAKPOINT_ORDER.forEach(k => {
+        const v = k.charAt(0) === 'x' ? `x-${k.substring(1)}` : k;
+        BREAKPOINT_CLASSES[k] = `vjs-layout-${v}`;
+    });
+    const DEFAULT_BREAKPOINTS = {
+        tiny: 210,
+        xsmall: 320,
+        small: 425,
+        medium: 768,
+        large: 1440,
+        xlarge: 2560,
+        huge: Infinity
+    };
+
+    /**
+     * An instance of the `Player` class is created when any of the Video.js setup methods
+     * are used to initialize a video.
+     *
+     * After an instance has been created it can be accessed globally in three ways:
+     * 1. By calling `videojs.getPlayer('example_video_1');`
+     * 2. By calling `videojs('example_video_1');` (not recomended)
+     * 2. By using it directly via  `videojs.players.example_video_1;`
+     *
+     * @extends Component
+     * @global
+     */
+    class Player extends Component$1 {
+        /**
+         * Create an instance of this class.
+         *
+         * @param {Element} tag
+         *        The original video DOM element used for configuring options.
+         *
+         * @param {Object} [options]
+         *        Object of option names and values.
+         *
+         * @param {Function} [ready]
+         *        Ready callback function.
+         */
+        constructor(tag, options, ready) {
+            // Make sure tag ID exists
+            tag.id = tag.id || options.id || `vjs_video_${newGUID()}`;
+
+            // Set Options
+            // The options argument overrides options set in the video tag
+            // which overrides globally set options.
+            // This latter part coincides with the load order
+            // (tag must exist before Player)
+            options = Object.assign(Player.getTagSettings(tag), options);
+
+            // Delay the initialization of children because we need to set up
+            // player properties first, and can't use `this` before `super()`
+            options.initChildren = false;
+
+            // Same with creating the element
+            options.createEl = false;
+
+            // don't auto mixin the evented mixin
+            options.evented = false;
+
+            // we don't want the player to report touch activity on itself
+            // see enableTouchActivity in Component
+            options.reportTouchActivity = false;
+
+            // If language is not set, get the closest lang attribute
+            if (!options.language) {
+                const closest = tag.closest('[lang]');
+                if (closest) {
+                    options.language = closest.getAttribute('lang');
+                }
+            }
+
+            // Run base component initializing with new options
+            super(null, options, ready);
+
+            // Create bound methods for document listeners.
+            this.boundDocumentFullscreenChange_ = e => this.documentFullscreenChange_(e);
+            this.boundFullWindowOnEscKey_ = e => this.fullWindowOnEscKey(e);
+            this.boundUpdateStyleEl_ = e => this.updateStyleEl_(e);
+            this.boundApplyInitTime_ = e => this.applyInitTime_(e);
+            this.boundUpdateCurrentBreakpoint_ = e => this.updateCurrentBreakpoint_(e);
+            this.boundHandleTechClick_ = e => this.handleTechClick_(e);
+            this.boundHandleTechDoubleClick_ = e => this.handleTechDoubleClick_(e);
+            this.boundHandleTechTouchStart_ = e => this.handleTechTouchStart_(e);
+            this.boundHandleTechTouchMove_ = e => this.handleTechTouchMove_(e);
+            this.boundHandleTechTouchEnd_ = e => this.handleTechTouchEnd_(e);
+            this.boundHandleTechTap_ = e => this.handleTechTap_(e);
+
+            // default isFullscreen_ to false
+            this.isFullscreen_ = false;
+
+            // create logger
+            this.log = createLogger(this.id_);
+
+            // Hold our own reference to fullscreen api so it can be mocked in tests
+            this.fsApi_ = FullscreenApi;
+
+            // Tracks when a tech changes the poster
+            this.isPosterFromTech_ = false;
+
+            // Holds callback info that gets queued when playback rate is zero
+            // and a seek is happening
+            this.queuedCallbacks_ = [];
+
+            // Turn off API access because we're loading a new tech that might load asynchronously
+            this.isReady_ = false;
+
+            // Init state hasStarted_
+            this.hasStarted_ = false;
+
+            // Init state userActive_
+            this.userActive_ = false;
+
+            // Init debugEnabled_
+            this.debugEnabled_ = false;
+
+            // Init state audioOnlyMode_
+            this.audioOnlyMode_ = false;
+
+            // Init state audioPosterMode_
+            this.audioPosterMode_ = false;
+
+            // Init state audioOnlyCache_
+            this.audioOnlyCache_ = {
+                playerHeight: null,
+                hiddenChildren: []
+            };
+
+            // if the global option object was accidentally blown away by
+            // someone, bail early with an informative error
+            if (!this.options_ || !this.options_.techOrder || !this.options_.techOrder.length) {
+                throw new Error('No techOrder specified. Did you overwrite ' + 'videojs.options instead of just changing the ' + 'properties you want to override?');
+            }
+
+            // Store the original tag used to set options
+            this.tag = tag;
+
+            // Store the tag attributes used to restore html5 element
+            this.tagAttributes = tag && getAttributes(tag);
+
+            // Update current language
+            this.language(this.options_.language);
+
+            // Update Supported Languages
+            if (options.languages) {
+                // Normalise player option languages to lowercase
+                const languagesToLower = {};
+                Object.getOwnPropertyNames(options.languages).forEach(function (name) {
+                    languagesToLower[name.toLowerCase()] = options.languages[name];
+                });
+                this.languages_ = languagesToLower;
+            } else {
+                this.languages_ = Player.prototype.options_.languages;
+            }
+            this.resetCache_();
+
+            // Set poster
+            this.poster_ = options.poster || '';
+
+            // Set controls
+            this.controls_ = !!options.controls;
+
+            // Original tag settings stored in options
+            // now remove immediately so native controls don't flash.
+            // May be turned back on by HTML5 tech if nativeControlsForTouch is true
+            tag.controls = false;
+            tag.removeAttribute('controls');
+            this.changingSrc_ = false;
+            this.playCallbacks_ = [];
+            this.playTerminatedQueue_ = [];
+
+            // the attribute overrides the option
+            if (tag.hasAttribute('autoplay')) {
+                this.autoplay(true);
+            } else {
+                // otherwise use the setter to validate and
+                // set the correct value.
+                this.autoplay(this.options_.autoplay);
+            }
+
+            // check plugins
+            if (options.plugins) {
+                Object.keys(options.plugins).forEach(name => {
+                    if (typeof this[name] !== 'function') {
+                        throw new Error(`plugin "${name}" does not exist`);
+                    }
+                });
+            }
+
+            /*
+       * Store the internal state of scrubbing
+       *
+       * @private
+       * @return {Boolean} True if the user is scrubbing
+       */
+            this.scrubbing_ = false;
+            this.el_ = this.createEl();
+
+            // Make this an evented object and use `el_` as its event bus.
+            evented(this, {
+                eventBusKey: 'el_'
+            });
+
+            // listen to document and player fullscreenchange handlers so we receive those events
+            // before a user can receive them so we can update isFullscreen appropriately.
+            // make sure that we listen to fullscreenchange events before everything else to make sure that
+            // our isFullscreen method is updated properly for internal components as well as external.
+            if (this.fsApi_.requestFullscreen) {
+                on(document, this.fsApi_.fullscreenchange, this.boundDocumentFullscreenChange_);
+                this.on(this.fsApi_.fullscreenchange, this.boundDocumentFullscreenChange_);
+            }
+            if (this.fluid_) {
+                this.on(['playerreset', 'resize'], this.boundUpdateStyleEl_);
+            }
+            // We also want to pass the original player options to each component and plugin
+            // as well so they don't need to reach back into the player for options later.
+            // We also need to do another copy of this.options_ so we don't end up with
+            // an infinite loop.
+            const playerOptionsCopy = merge$2(this.options_);
+
+            // Load plugins
+            if (options.plugins) {
+                Object.keys(options.plugins).forEach(name => {
+                    this[name](options.plugins[name]);
+                });
+            }
+
+            // Enable debug mode to fire debugon event for all plugins.
+            if (options.debug) {
+                this.debug(true);
+            }
+            this.options_.playerOptions = playerOptionsCopy;
+            this.middleware_ = [];
+            this.playbackRates(options.playbackRates);
+            this.initChildren();
+
+            // Set isAudio based on whether or not an audio tag was used
+            this.isAudio(tag.nodeName.toLowerCase() === 'audio');
+
+            // Update controls className. Can't do this when the controls are initially
+            // set because the element doesn't exist yet.
+            if (this.controls()) {
+                this.addClass('vjs-controls-enabled');
+            } else {
+                this.addClass('vjs-controls-disabled');
+            }
+
+            // Set ARIA label and region role depending on player type
+            this.el_.setAttribute('role', 'region');
+            if (this.isAudio()) {
+                this.el_.setAttribute('aria-label', this.localize('Audio Player'));
+            } else {
+                this.el_.setAttribute('aria-label', this.localize('Video Player'));
+            }
+            if (this.isAudio()) {
+                this.addClass('vjs-audio');
+            }
+
+            // TODO: Make this smarter. Toggle user state between touching/mousing
+            // using events, since devices can have both touch and mouse events.
+            // TODO: Make this check be performed again when the window switches between monitors
+            // (See https://github.com/videojs/video.js/issues/5683)
+            if (TOUCH_ENABLED) {
+                this.addClass('vjs-touch-enabled');
+            }
+
+            // iOS Safari has broken hover handling
+            if (!IS_IOS) {
+                this.addClass('vjs-workinghover');
+            }
+
+            // Make player easily findable by ID
+            Player.players[this.id_] = this;
+
+            // Add a major version class to aid css in plugins
+            const majorVersion = version$5.split('.')[0];
+            this.addClass(`vjs-v${majorVersion}`);
+
+            // When the player is first initialized, trigger activity so components
+            // like the control bar show themselves if needed
+            this.userActive(true);
+            this.reportUserActivity();
+            this.one('play', e => this.listenForUserActivity_(e));
+            this.on('keydown', e => this.handleKeyDown(e));
+            this.on('languagechange', e => this.handleLanguagechange(e));
+            this.breakpoints(this.options_.breakpoints);
+            this.responsive(this.options_.responsive);
+
+            // Calling both the audio mode methods after the player is fully
+            // setup to be able to listen to the events triggered by them
+            this.on('ready', () => {
+                // Calling the audioPosterMode method first so that
+                // the audioOnlyMode can take precedence when both options are set to true
+                this.audioPosterMode(this.options_.audioPosterMode);
+                this.audioOnlyMode(this.options_.audioOnlyMode);
+            });
+        }
+
+        /**
+         * Destroys the video player and does any necessary cleanup.
+         *
+         * This is especially helpful if you are dynamically adding and removing videos
+         * to/from the DOM.
+         *
+         * @fires Player#dispose
+         */
+        dispose() {
+            /**
+             * Called when the player is being disposed of.
+             *
+             * @event Player#dispose
+             * @type {Event}
+             */
+            this.trigger('dispose');
+            // prevent dispose from being called twice
+            this.off('dispose');
+
+            // Make sure all player-specific document listeners are unbound. This is
+            off(document, this.fsApi_.fullscreenchange, this.boundDocumentFullscreenChange_);
+            off(document, 'keydown', this.boundFullWindowOnEscKey_);
+            if (this.styleEl_ && this.styleEl_.parentNode) {
+                this.styleEl_.parentNode.removeChild(this.styleEl_);
+                this.styleEl_ = null;
+            }
+
+            // Kill reference to this player
+            Player.players[this.id_] = null;
+            if (this.tag && this.tag.player) {
+                this.tag.player = null;
+            }
+            if (this.el_ && this.el_.player) {
+                this.el_.player = null;
+            }
+            if (this.tech_) {
+                this.tech_.dispose();
+                this.isPosterFromTech_ = false;
+                this.poster_ = '';
+            }
+            if (this.playerElIngest_) {
+                this.playerElIngest_ = null;
+            }
+            if (this.tag) {
+                this.tag = null;
+            }
+            clearCacheForPlayer(this);
+
+            // remove all event handlers for track lists
+            // all tracks and track listeners are removed on
+            // tech dispose
+            ALL.names.forEach(name => {
+                const props = ALL[name];
+                const list = this[props.getterName]();
+
+                // if it is not a native list
+                // we have to manually remove event listeners
+                if (list && list.off) {
+                    list.off();
+                }
+            });
+
+            // the actual .el_ is removed here, or replaced if
+            super.dispose({
+                restoreEl: this.options_.restoreEl
+            });
+        }
+
+        /**
+         * Create the `Player`'s DOM element.
+         *
+         * @return {Element}
+         *         The DOM element that gets created.
+         */
+        createEl() {
+            let tag = this.tag;
+            let el;
+            let playerElIngest = this.playerElIngest_ = tag.parentNode && tag.parentNode.hasAttribute && tag.parentNode.hasAttribute('data-vjs-player');
+            const divEmbed = this.tag.tagName.toLowerCase() === 'video-js';
+            if (playerElIngest) {
+                el = this.el_ = tag.parentNode;
+            } else if (!divEmbed) {
+                el = this.el_ = super.createEl('div');
+            }
+
+            // Copy over all the attributes from the tag, including ID and class
+            // ID will now reference player box, not the video tag
+            const attrs = getAttributes(tag);
+            if (divEmbed) {
+                el = this.el_ = tag;
+                tag = this.tag = document.createElement('video');
+                while (el.children.length) {
+                    tag.appendChild(el.firstChild);
+                }
+                if (!hasClass(el, 'video-js')) {
+                    addClass(el, 'video-js');
+                }
+                el.appendChild(tag);
+                playerElIngest = this.playerElIngest_ = el;
+                // move properties over from our custom `video-js` element
+                // to our new `video` element. This will move things like
+                // `src` or `controls` that were set via js before the player
+                // was initialized.
+                Object.keys(el).forEach(k => {
+                    try {
+                        tag[k] = el[k];
+                    } catch (e) {
+                        // we got a a property like outerHTML which we can't actually copy, ignore it
+                    }
+                });
+            }
+
+            // set tabindex to -1 to remove the video element from the focus order
+            tag.setAttribute('tabindex', '-1');
+            attrs.tabindex = '-1';
+
+            // Workaround for #4583 on Chrome (on Windows) with JAWS.
+            // See https://github.com/FreedomScientific/VFO-standards-support/issues/78
+            // Note that we can't detect if JAWS is being used, but this ARIA attribute
+            // doesn't change behavior of Chrome if JAWS is not being used
+            if (IS_CHROME && IS_WINDOWS) {
+                tag.setAttribute('role', 'application');
+                attrs.role = 'application';
+            }
+
+            // Remove width/height attrs from tag so CSS can make it 100% width/height
+            tag.removeAttribute('width');
+            tag.removeAttribute('height');
+            if ('width' in attrs) {
+                delete attrs.width;
+            }
+            if ('height' in attrs) {
+                delete attrs.height;
+            }
+            Object.getOwnPropertyNames(attrs).forEach(function (attr) {
+                // don't copy over the class attribute to the player element when we're in a div embed
+                // the class is already set up properly in the divEmbed case
+                // and we want to make sure that the `video-js` class doesn't get lost
+                if (!(divEmbed && attr === 'class')) {
+                    el.setAttribute(attr, attrs[attr]);
+                }
+                if (divEmbed) {
+                    tag.setAttribute(attr, attrs[attr]);
+                }
+            });
+
+            // Update tag id/class for use as HTML5 playback tech
+            // Might think we should do this after embedding in container so .vjs-tech class
+            // doesn't flash 100% width/height, but class only applies with .video-js parent
+            tag.playerId = tag.id;
+            tag.id += '_html5_api';
+            tag.className = 'vjs-tech';
+
+            // Make player findable on elements
+            tag.player = el.player = this;
+            // Default state of video is paused
+            this.addClass('vjs-paused');
+
+            // Add a style element in the player that we'll use to set the width/height
+            // of the player in a way that's still overridable by CSS, just like the
+            // video element
+            if (window.VIDEOJS_NO_DYNAMIC_STYLE !== true) {
+                this.styleEl_ = createStyleElement('vjs-styles-dimensions');
+                const defaultsStyleEl = $('.vjs-styles-defaults');
+                const head = $('head');
+                head.insertBefore(this.styleEl_, defaultsStyleEl ? defaultsStyleEl.nextSibling : head.firstChild);
+            }
+            this.fill_ = false;
+            this.fluid_ = false;
+
+            // Pass in the width/height/aspectRatio options which will update the style el
+            this.width(this.options_.width);
+            this.height(this.options_.height);
+            this.fill(this.options_.fill);
+            this.fluid(this.options_.fluid);
+            this.aspectRatio(this.options_.aspectRatio);
+            // support both crossOrigin and crossorigin to reduce confusion and issues around the name
+            this.crossOrigin(this.options_.crossOrigin || this.options_.crossorigin);
+
+            // Hide any links within the video/audio tag,
+            // because IE doesn't hide them completely from screen readers.
+            const links = tag.getElementsByTagName('a');
+            for (let i = 0; i < links.length; i++) {
+                const linkEl = links.item(i);
+                addClass(linkEl, 'vjs-hidden');
+                linkEl.setAttribute('hidden', 'hidden');
+            }
+
+            // insertElFirst seems to cause the networkState to flicker from 3 to 2, so
+            // keep track of the original for later so we can know if the source originally failed
+            tag.initNetworkState_ = tag.networkState;
+
+            // Wrap video tag in div (el/box) container
+            if (tag.parentNode && !playerElIngest) {
+                tag.parentNode.insertBefore(el, tag);
+            }
+
+            // insert the tag as the first child of the player element
+            // then manually add it to the children array so that this.addChild
+            // will work properly for other components
+            //
+            // Breaks iPhone, fixed in HTML5 setup.
+            prependTo(tag, el);
+            this.children_.unshift(tag);
+
+            // Set lang attr on player to ensure CSS :lang() in consistent with player
+            // if it's been set to something different to the doc
+            this.el_.setAttribute('lang', this.language_);
+            this.el_.setAttribute('translate', 'no');
+            this.el_ = el;
+            return el;
+        }
+
+        /**
+         * Get or set the `Player`'s crossOrigin option. For the HTML5 player, this
+         * sets the `crossOrigin` property on the `<video>` tag to control the CORS
+         * behavior.
+         *
+         * @see [Video Element Attributes]{@link https://developer.mozilla.org/en-US/docs/Web/HTML/Element/video#attr-crossorigin}
+         *
+         * @param {string|null} [value]
+         *        The value to set the `Player`'s crossOrigin to. If an argument is
+         *        given, must be one of `'anonymous'` or `'use-credentials'`, or 'null'.
+         *
+         * @return {string|null|undefined}
+         *         - The current crossOrigin value of the `Player` when getting.
+         *         - undefined when setting
+         */
+        crossOrigin(value) {
+            // `null` can be set to unset a value
+            if (typeof value === 'undefined') {
+                return this.techGet_('crossOrigin');
+            }
+            if (value !== null && value !== 'anonymous' && value !== 'use-credentials') {
+                log$1.warn(`crossOrigin must be null,  "anonymous" or "use-credentials", given "${value}"`);
+                return;
+            }
+            this.techCall_('setCrossOrigin', value);
+            if (this.posterImage) {
+                this.posterImage.crossOrigin(value);
+            }
             return;
-          } // Only remove a class if there is a current breakpoint.
-
-
-          if (currentBreakpoint) {
-            this.removeClass(BREAKPOINT_CLASSES[currentBreakpoint]);
-          }
-
-          this.addClass(BREAKPOINT_CLASSES[candidateBreakpoint]);
-          this.breakpoint_ = candidateBreakpoint;
-          break;
         }
+
+        /**
+         * A getter/setter for the `Player`'s width. Returns the player's configured value.
+         * To get the current width use `currentWidth()`.
+         *
+         * @param {number} [value]
+         *        The value to set the `Player`'s width to.
+         *
+         * @return {number}
+         *         The current width of the `Player` when getting.
+         */
+        width(value) {
+            return this.dimension('width', value);
+        }
+
+        /**
+         * A getter/setter for the `Player`'s height. Returns the player's configured value.
+         * To get the current height use `currentheight()`.
+         *
+         * @param {number} [value]
+         *        The value to set the `Player`'s height to.
+         *
+         * @return {number}
+         *         The current height of the `Player` when getting.
+         */
+        height(value) {
+            return this.dimension('height', value);
+        }
+
+        /**
+         * A getter/setter for the `Player`'s width & height.
+         *
+         * @param {string} dimension
+         *        This string can be:
+         *        - 'width'
+         *        - 'height'
+         *
+         * @param {number} [value]
+         *        Value for dimension specified in the first argument.
+         *
+         * @return {number}
+         *         The dimension arguments value when getting (width/height).
+         */
+        dimension(dimension, value) {
+            const privDimension = dimension + '_';
+            if (value === undefined) {
+                return this[privDimension] || 0;
+            }
+            if (value === '' || value === 'auto') {
+                // If an empty string is given, reset the dimension to be automatic
+                this[privDimension] = undefined;
+                this.updateStyleEl_();
+                return;
+            }
+            const parsedVal = parseFloat(value);
+            if (isNaN(parsedVal)) {
+                log$1.error(`Improper value "${value}" supplied for for ${dimension}`);
+                return;
+            }
+            this[privDimension] = parsedVal;
+            this.updateStyleEl_();
+        }
+
+        /**
+         * A getter/setter/toggler for the vjs-fluid `className` on the `Player`.
+         *
+         * Turning this on will turn off fill mode.
+         *
+         * @param {boolean} [bool]
+         *        - A value of true adds the class.
+         *        - A value of false removes the class.
+         *        - No value will be a getter.
+         *
+         * @return {boolean|undefined}
+         *         - The value of fluid when getting.
+         *         - `undefined` when setting.
+         */
+        fluid(bool) {
+            if (bool === undefined) {
+                return !!this.fluid_;
+            }
+            this.fluid_ = !!bool;
+            if (isEvented(this)) {
+                this.off(['playerreset', 'resize'], this.boundUpdateStyleEl_);
+            }
+            if (bool) {
+                this.addClass('vjs-fluid');
+                this.fill(false);
+                addEventedCallback(this, () => {
+                    this.on(['playerreset', 'resize'], this.boundUpdateStyleEl_);
+                });
+            } else {
+                this.removeClass('vjs-fluid');
+            }
+            this.updateStyleEl_();
+        }
+
+        /**
+         * A getter/setter/toggler for the vjs-fill `className` on the `Player`.
+         *
+         * Turning this on will turn off fluid mode.
+         *
+         * @param {boolean} [bool]
+         *        - A value of true adds the class.
+         *        - A value of false removes the class.
+         *        - No value will be a getter.
+         *
+         * @return {boolean|undefined}
+         *         - The value of fluid when getting.
+         *         - `undefined` when setting.
+         */
+        fill(bool) {
+            if (bool === undefined) {
+                return !!this.fill_;
+            }
+            this.fill_ = !!bool;
+            if (bool) {
+                this.addClass('vjs-fill');
+                this.fluid(false);
+            } else {
+                this.removeClass('vjs-fill');
+            }
+        }
+
+        /**
+         * Get/Set the aspect ratio
+         *
+         * @param {string} [ratio]
+         *        Aspect ratio for player
+         *
+         * @return {string|undefined}
+         *         returns the current aspect ratio when getting
+         */
+
+        /**
+         * A getter/setter for the `Player`'s aspect ratio.
+         *
+         * @param {string} [ratio]
+         *        The value to set the `Player`'s aspect ratio to.
+         *
+         * @return {string|undefined}
+         *         - The current aspect ratio of the `Player` when getting.
+         *         - undefined when setting
+         */
+        aspectRatio(ratio) {
+            if (ratio === undefined) {
+                return this.aspectRatio_;
+            }
+
+            // Check for width:height format
+            if (!/^\d+\:\d+$/.test(ratio)) {
+                throw new Error('Improper value supplied for aspect ratio. The format should be width:height, for example 16:9.');
+            }
+            this.aspectRatio_ = ratio;
+
+            // We're assuming if you set an aspect ratio you want fluid mode,
+            // because in fixed mode you could calculate width and height yourself.
+            this.fluid(true);
+            this.updateStyleEl_();
+        }
+
+        /**
+         * Update styles of the `Player` element (height, width and aspect ratio).
+         *
+         * @private
+         * @listens Tech#loadedmetadata
+         */
+        updateStyleEl_() {
+            if (window.VIDEOJS_NO_DYNAMIC_STYLE === true) {
+                const width = typeof this.width_ === 'number' ? this.width_ : this.options_.width;
+                const height = typeof this.height_ === 'number' ? this.height_ : this.options_.height;
+                const techEl = this.tech_ && this.tech_.el();
+                if (techEl) {
+                    if (width >= 0) {
+                        techEl.width = width;
+                    }
+                    if (height >= 0) {
+                        techEl.height = height;
+                    }
+                }
+                return;
+            }
+            let width;
+            let height;
+            let aspectRatio;
+            let idClass;
+
+            // The aspect ratio is either used directly or to calculate width and height.
+            if (this.aspectRatio_ !== undefined && this.aspectRatio_ !== 'auto') {
+                // Use any aspectRatio that's been specifically set
+                aspectRatio = this.aspectRatio_;
+            } else if (this.videoWidth() > 0) {
+                // Otherwise try to get the aspect ratio from the video metadata
+                aspectRatio = this.videoWidth() + ':' + this.videoHeight();
+            } else {
+                // Or use a default. The video element's is 2:1, but 16:9 is more common.
+                aspectRatio = '16:9';
+            }
+
+            // Get the ratio as a decimal we can use to calculate dimensions
+            const ratioParts = aspectRatio.split(':');
+            const ratioMultiplier = ratioParts[1] / ratioParts[0];
+            if (this.width_ !== undefined) {
+                // Use any width that's been specifically set
+                width = this.width_;
+            } else if (this.height_ !== undefined) {
+                // Or calculate the width from the aspect ratio if a height has been set
+                width = this.height_ / ratioMultiplier;
+            } else {
+                // Or use the video's metadata, or use the video el's default of 300
+                width = this.videoWidth() || 300;
+            }
+            if (this.height_ !== undefined) {
+                // Use any height that's been specifically set
+                height = this.height_;
+            } else {
+                // Otherwise calculate the height from the ratio and the width
+                height = width * ratioMultiplier;
+            }
+
+            // Ensure the CSS class is valid by starting with an alpha character
+            if (/^[^a-zA-Z]/.test(this.id())) {
+                idClass = 'dimensions-' + this.id();
+            } else {
+                idClass = this.id() + '-dimensions';
+            }
+
+            // Ensure the right class is still on the player for the style element
+            this.addClass(idClass);
+            setTextContent(this.styleEl_, `
+      .${idClass} {
+        width: ${width}px;
+        height: ${height}px;
       }
+
+      .${idClass}.vjs-fluid:not(.vjs-audio-only-mode) {
+        padding-top: ${ratioMultiplier * 100}%;
+      }
+    `);
+        }
+
+        /**
+         * Load/Create an instance of playback {@link Tech} including element
+         * and API methods. Then append the `Tech` element in `Player` as a child.
+         *
+         * @param {string} techName
+         *        name of the playback technology
+         *
+         * @param {string} source
+         *        video source
+         *
+         * @private
+         */
+        loadTech_(techName, source) {
+            // Pause and remove current playback technology
+            if (this.tech_) {
+                this.unloadTech_();
+            }
+            const titleTechName = toTitleCase$1(techName);
+            const camelTechName = techName.charAt(0).toLowerCase() + techName.slice(1);
+
+            // get rid of the HTML5 video tag as soon as we are using another tech
+            if (titleTechName !== 'Html5' && this.tag) {
+                Tech.getTech('Html5').disposeMediaElement(this.tag);
+                this.tag.player = null;
+                this.tag = null;
+            }
+            this.techName_ = titleTechName;
+
+            // Turn off API access because we're loading a new tech that might load asynchronously
+            this.isReady_ = false;
+            let autoplay = this.autoplay();
+
+            // if autoplay is a string (or `true` with normalizeAutoplay: true) we pass false to the tech
+            // because the player is going to handle autoplay on `loadstart`
+            if (typeof this.autoplay() === 'string' || this.autoplay() === true && this.options_.normalizeAutoplay) {
+                autoplay = false;
+            }
+
+            // Grab tech-specific options from player options and add source and parent element to use.
+            const techOptions = {
+                source,
+                autoplay,
+                'nativeControlsForTouch': this.options_.nativeControlsForTouch,
+                'playerId': this.id(),
+                'techId': `${this.id()}_${camelTechName}_api`,
+                'playsinline': this.options_.playsinline,
+                'preload': this.options_.preload,
+                'loop': this.options_.loop,
+                'disablePictureInPicture': this.options_.disablePictureInPicture,
+                'muted': this.options_.muted,
+                'poster': this.poster(),
+                'language': this.language(),
+                'playerElIngest': this.playerElIngest_ || false,
+                'vtt.js': this.options_['vtt.js'],
+                'canOverridePoster': !!this.options_.techCanOverridePoster,
+                'enableSourceset': this.options_.enableSourceset
+            };
+            ALL.names.forEach(name => {
+                const props = ALL[name];
+                techOptions[props.getterName] = this[props.privateName];
+            });
+            Object.assign(techOptions, this.options_[titleTechName]);
+            Object.assign(techOptions, this.options_[camelTechName]);
+            Object.assign(techOptions, this.options_[techName.toLowerCase()]);
+            if (this.tag) {
+                techOptions.tag = this.tag;
+            }
+            if (source && source.src === this.cache_.src && this.cache_.currentTime > 0) {
+                techOptions.startTime = this.cache_.currentTime;
+            }
+
+            // Initialize tech instance
+            const TechClass = Tech.getTech(techName);
+            if (!TechClass) {
+                throw new Error(`No Tech named '${titleTechName}' exists! '${titleTechName}' should be registered using videojs.registerTech()'`);
+            }
+            this.tech_ = new TechClass(techOptions);
+
+            // player.triggerReady is always async, so don't need this to be async
+            this.tech_.ready(bind_(this, this.handleTechReady_), true);
+            textTrackConverter.jsonToTextTracks(this.textTracksJson_ || [], this.tech_);
+
+            // Listen to all HTML5-defined events and trigger them on the player
+            TECH_EVENTS_RETRIGGER.forEach(event => {
+                this.on(this.tech_, event, e => this[`handleTech${toTitleCase$1(event)}_`](e));
+            });
+            Object.keys(TECH_EVENTS_QUEUE).forEach(event => {
+                this.on(this.tech_, event, eventObj => {
+                    if (this.tech_.playbackRate() === 0 && this.tech_.seeking()) {
+                        this.queuedCallbacks_.push({
+                            callback: this[`handleTech${TECH_EVENTS_QUEUE[event]}_`].bind(this),
+                            event: eventObj
+                        });
+                        return;
+                    }
+                    this[`handleTech${TECH_EVENTS_QUEUE[event]}_`](eventObj);
+                });
+            });
+            this.on(this.tech_, 'loadstart', e => this.handleTechLoadStart_(e));
+            this.on(this.tech_, 'sourceset', e => this.handleTechSourceset_(e));
+            this.on(this.tech_, 'waiting', e => this.handleTechWaiting_(e));
+            this.on(this.tech_, 'ended', e => this.handleTechEnded_(e));
+            this.on(this.tech_, 'seeking', e => this.handleTechSeeking_(e));
+            this.on(this.tech_, 'play', e => this.handleTechPlay_(e));
+            this.on(this.tech_, 'pause', e => this.handleTechPause_(e));
+            this.on(this.tech_, 'durationchange', e => this.handleTechDurationChange_(e));
+            this.on(this.tech_, 'fullscreenchange', (e, data) => this.handleTechFullscreenChange_(e, data));
+            this.on(this.tech_, 'fullscreenerror', (e, err) => this.handleTechFullscreenError_(e, err));
+            this.on(this.tech_, 'enterpictureinpicture', e => this.handleTechEnterPictureInPicture_(e));
+            this.on(this.tech_, 'leavepictureinpicture', e => this.handleTechLeavePictureInPicture_(e));
+            this.on(this.tech_, 'error', e => this.handleTechError_(e));
+            this.on(this.tech_, 'posterchange', e => this.handleTechPosterChange_(e));
+            this.on(this.tech_, 'textdata', e => this.handleTechTextData_(e));
+            this.on(this.tech_, 'ratechange', e => this.handleTechRateChange_(e));
+            this.on(this.tech_, 'loadedmetadata', this.boundUpdateStyleEl_);
+            this.usingNativeControls(this.techGet_('controls'));
+            if (this.controls() && !this.usingNativeControls()) {
+                this.addTechControlsListeners_();
+            }
+
+            // Add the tech element in the DOM if it was not already there
+            // Make sure to not insert the original video element if using Html5
+            if (this.tech_.el().parentNode !== this.el() && (titleTechName !== 'Html5' || !this.tag)) {
+                prependTo(this.tech_.el(), this.el());
+            }
+
+            // Get rid of the original video tag reference after the first tech is loaded
+            if (this.tag) {
+                this.tag.player = null;
+                this.tag = null;
+            }
+        }
+
+        /**
+         * Unload and dispose of the current playback {@link Tech}.
+         *
+         * @private
+         */
+        unloadTech_() {
+            // Save the current text tracks so that we can reuse the same text tracks with the next tech
+            ALL.names.forEach(name => {
+                const props = ALL[name];
+                this[props.privateName] = this[props.getterName]();
+            });
+            this.textTracksJson_ = textTrackConverter.textTracksToJson(this.tech_);
+            this.isReady_ = false;
+            this.tech_.dispose();
+            this.tech_ = false;
+            if (this.isPosterFromTech_) {
+                this.poster_ = '';
+                this.trigger('posterchange');
+            }
+            this.isPosterFromTech_ = false;
+        }
+
+        /**
+         * Return a reference to the current {@link Tech}.
+         * It will print a warning by default about the danger of using the tech directly
+         * but any argument that is passed in will silence the warning.
+         *
+         * @param {*} [safety]
+         *        Anything passed in to silence the warning
+         *
+         * @return {Tech}
+         *         The Tech
+         */
+        tech(safety) {
+            if (safety === undefined) {
+                log$1.warn('Using the tech directly can be dangerous. I hope you know what you\'re doing.\n' + 'See https://github.com/videojs/video.js/issues/2617 for more info.\n');
+            }
+            return this.tech_;
+        }
+
+        /**
+         * Set up click and touch listeners for the playback element
+         *
+         * - On desktops: a click on the video itself will toggle playback
+         * - On mobile devices: a click on the video toggles controls
+         *   which is done by toggling the user state between active and
+         *   inactive
+         * - A tap can signal that a user has become active or has become inactive
+         *   e.g. a quick tap on an iPhone movie should reveal the controls. Another
+         *   quick tap should hide them again (signaling the user is in an inactive
+         *   viewing state)
+         * - In addition to this, we still want the user to be considered inactive after
+         *   a few seconds of inactivity.
+         *
+         * > Note: the only part of iOS interaction we can't mimic with this setup
+         * is a touch and hold on the video element counting as activity in order to
+         * keep the controls showing, but that shouldn't be an issue. A touch and hold
+         * on any controls will still keep the user active
+         *
+         * @private
+         */
+        addTechControlsListeners_() {
+            // Make sure to remove all the previous listeners in case we are called multiple times.
+            this.removeTechControlsListeners_();
+            this.on(this.tech_, 'click', this.boundHandleTechClick_);
+            this.on(this.tech_, 'dblclick', this.boundHandleTechDoubleClick_);
+
+            // If the controls were hidden we don't want that to change without a tap event
+            // so we'll check if the controls were already showing before reporting user
+            // activity
+            this.on(this.tech_, 'touchstart', this.boundHandleTechTouchStart_);
+            this.on(this.tech_, 'touchmove', this.boundHandleTechTouchMove_);
+            this.on(this.tech_, 'touchend', this.boundHandleTechTouchEnd_);
+
+            // The tap listener needs to come after the touchend listener because the tap
+            // listener cancels out any reportedUserActivity when setting userActive(false)
+            this.on(this.tech_, 'tap', this.boundHandleTechTap_);
+        }
+
+        /**
+         * Remove the listeners used for click and tap controls. This is needed for
+         * toggling to controls disabled, where a tap/touch should do nothing.
+         *
+         * @private
+         */
+        removeTechControlsListeners_() {
+            // We don't want to just use `this.off()` because there might be other needed
+            // listeners added by techs that extend this.
+            this.off(this.tech_, 'tap', this.boundHandleTechTap_);
+            this.off(this.tech_, 'touchstart', this.boundHandleTechTouchStart_);
+            this.off(this.tech_, 'touchmove', this.boundHandleTechTouchMove_);
+            this.off(this.tech_, 'touchend', this.boundHandleTechTouchEnd_);
+            this.off(this.tech_, 'click', this.boundHandleTechClick_);
+            this.off(this.tech_, 'dblclick', this.boundHandleTechDoubleClick_);
+        }
+
+        /**
+         * Player waits for the tech to be ready
+         *
+         * @private
+         */
+        handleTechReady_() {
+            this.triggerReady();
+
+            // Keep the same volume as before
+            if (this.cache_.volume) {
+                this.techCall_('setVolume', this.cache_.volume);
+            }
+
+            // Look if the tech found a higher resolution poster while loading
+            this.handleTechPosterChange_();
+
+            // Update the duration if available
+            this.handleTechDurationChange_();
+        }
+
+        /**
+         * Retrigger the `loadstart` event that was triggered by the {@link Tech}.
+         *
+         * @fires Player#loadstart
+         * @listens Tech#loadstart
+         * @private
+         */
+        handleTechLoadStart_() {
+            // TODO: Update to use `emptied` event instead. See #1277.
+
+            this.removeClass('vjs-ended', 'vjs-seeking');
+
+            // reset the error state
+            this.error(null);
+
+            // Update the duration
+            this.handleTechDurationChange_();
+            if (!this.paused()) {
+                /**
+                 * Fired when the user agent begins looking for media data
+                 *
+                 * @event Player#loadstart
+                 * @type {Event}
+                 */
+                this.trigger('loadstart');
+            } else {
+                // reset the hasStarted state
+                this.hasStarted(false);
+                this.trigger('loadstart');
+            }
+
+            // autoplay happens after loadstart for the browser,
+            // so we mimic that behavior
+            this.manualAutoplay_(this.autoplay() === true && this.options_.normalizeAutoplay ? 'play' : this.autoplay());
+        }
+
+        /**
+         * Handle autoplay string values, rather than the typical boolean
+         * values that should be handled by the tech. Note that this is not
+         * part of any specification. Valid values and what they do can be
+         * found on the autoplay getter at Player#autoplay()
+         */
+        manualAutoplay_(type) {
+            if (!this.tech_ || typeof type !== 'string') {
+                return;
+            }
+
+            // Save original muted() value, set muted to true, and attempt to play().
+            // On promise rejection, restore muted from saved value
+            const resolveMuted = () => {
+                const previouslyMuted = this.muted();
+                this.muted(true);
+                const restoreMuted = () => {
+                    this.muted(previouslyMuted);
+                };
+
+                // restore muted on play terminatation
+                this.playTerminatedQueue_.push(restoreMuted);
+                const mutedPromise = this.play();
+                if (!isPromise(mutedPromise)) {
+                    return;
+                }
+                return mutedPromise.catch(err => {
+                    restoreMuted();
+                    throw new Error(`Rejection at manualAutoplay. Restoring muted value. ${err ? err : ''}`);
+                });
+            };
+            let promise;
+
+            // if muted defaults to true
+            // the only thing we can do is call play
+            if (type === 'any' && !this.muted()) {
+                promise = this.play();
+                if (isPromise(promise)) {
+                    promise = promise.catch(resolveMuted);
+                }
+            } else if (type === 'muted' && !this.muted()) {
+                promise = resolveMuted();
+            } else {
+                promise = this.play();
+            }
+            if (!isPromise(promise)) {
+                return;
+            }
+            return promise.then(() => {
+                this.trigger({
+                    type: 'autoplay-success',
+                    autoplay: type
+                });
+            }).catch(() => {
+                this.trigger({
+                    type: 'autoplay-failure',
+                    autoplay: type
+                });
+            });
+        }
+
+        /**
+         * Update the internal source caches so that we return the correct source from
+         * `src()`, `currentSource()`, and `currentSources()`.
+         *
+         * > Note: `currentSources` will not be updated if the source that is passed in exists
+         *         in the current `currentSources` cache.
+         *
+         *
+         * @param {Tech~SourceObject} srcObj
+         *        A string or object source to update our caches to.
+         */
+        updateSourceCaches_(srcObj = '') {
+            let src = srcObj;
+            let type = '';
+            if (typeof src !== 'string') {
+                src = srcObj.src;
+                type = srcObj.type;
+            }
+
+            // make sure all the caches are set to default values
+            // to prevent null checking
+            this.cache_.source = this.cache_.source || {};
+            this.cache_.sources = this.cache_.sources || [];
+
+            // try to get the type of the src that was passed in
+            if (src && !type) {
+                type = findMimetype(this, src);
+            }
+
+            // update `currentSource` cache always
+            this.cache_.source = merge$2({}, srcObj, {
+                src,
+                type
+            });
+            const matchingSources = this.cache_.sources.filter(s => s.src && s.src === src);
+            const sourceElSources = [];
+            const sourceEls = this.$$('source');
+            const matchingSourceEls = [];
+            for (let i = 0; i < sourceEls.length; i++) {
+                const sourceObj = getAttributes(sourceEls[i]);
+                sourceElSources.push(sourceObj);
+                if (sourceObj.src && sourceObj.src === src) {
+                    matchingSourceEls.push(sourceObj.src);
+                }
+            }
+
+            // if we have matching source els but not matching sources
+            // the current source cache is not up to date
+            if (matchingSourceEls.length && !matchingSources.length) {
+                this.cache_.sources = sourceElSources;
+                // if we don't have matching source or source els set the
+                // sources cache to the `currentSource` cache
+            } else if (!matchingSources.length) {
+                this.cache_.sources = [this.cache_.source];
+            }
+
+            // update the tech `src` cache
+            this.cache_.src = src;
+        }
+
+        /**
+         * *EXPERIMENTAL* Fired when the source is set or changed on the {@link Tech}
+         * causing the media element to reload.
+         *
+         * It will fire for the initial source and each subsequent source.
+         * This event is a custom event from Video.js and is triggered by the {@link Tech}.
+         *
+         * The event object for this event contains a `src` property that will contain the source
+         * that was available when the event was triggered. This is generally only necessary if Video.js
+         * is switching techs while the source was being changed.
+         *
+         * It is also fired when `load` is called on the player (or media element)
+         * because the {@link https://html.spec.whatwg.org/multipage/media.html#dom-media-load|specification for `load`}
+         * says that the resource selection algorithm needs to be aborted and restarted.
+         * In this case, it is very likely that the `src` property will be set to the
+         * empty string `""` to indicate we do not know what the source will be but
+         * that it is changing.
+         *
+         * *This event is currently still experimental and may change in minor releases.*
+         * __To use this, pass `enableSourceset` option to the player.__
+         *
+         * @event Player#sourceset
+         * @type {Event}
+         * @prop {string} src
+         *                The source url available when the `sourceset` was triggered.
+         *                It will be an empty string if we cannot know what the source is
+         *                but know that the source will change.
+         */
+        /**
+         * Retrigger the `sourceset` event that was triggered by the {@link Tech}.
+         *
+         * @fires Player#sourceset
+         * @listens Tech#sourceset
+         * @private
+         */
+        handleTechSourceset_(event) {
+            // only update the source cache when the source
+            // was not updated using the player api
+            if (!this.changingSrc_) {
+                let updateSourceCaches = src => this.updateSourceCaches_(src);
+                const playerSrc = this.currentSource().src;
+                const eventSrc = event.src;
+
+                // if we have a playerSrc that is not a blob, and a tech src that is a blob
+                if (playerSrc && !/^blob:/.test(playerSrc) && /^blob:/.test(eventSrc)) {
+                    // if both the tech source and the player source were updated we assume
+                    // something like @videojs/http-streaming did the sourceset and skip updating the source cache.
+                    if (!this.lastSource_ || this.lastSource_.tech !== eventSrc && this.lastSource_.player !== playerSrc) {
+                        updateSourceCaches = () => {};
+                    }
+                }
+
+                // update the source to the initial source right away
+                // in some cases this will be empty string
+                updateSourceCaches(eventSrc);
+
+                // if the `sourceset` `src` was an empty string
+                // wait for a `loadstart` to update the cache to `currentSrc`.
+                // If a sourceset happens before a `loadstart`, we reset the state
+                if (!event.src) {
+                    this.tech_.any(['sourceset', 'loadstart'], e => {
+                        // if a sourceset happens before a `loadstart` there
+                        // is nothing to do as this `handleTechSourceset_`
+                        // will be called again and this will be handled there.
+                        if (e.type === 'sourceset') {
+                            return;
+                        }
+                        const techSrc = this.techGet('currentSrc');
+                        this.lastSource_.tech = techSrc;
+                        this.updateSourceCaches_(techSrc);
+                    });
+                }
+            }
+            this.lastSource_ = {
+                player: this.currentSource().src,
+                tech: event.src
+            };
+            this.trigger({
+                src: event.src,
+                type: 'sourceset'
+            });
+        }
+
+        /**
+         * Add/remove the vjs-has-started class
+         *
+         *
+         * @param {boolean} request
+         *        - true: adds the class
+         *        - false: remove the class
+         *
+         * @return {boolean}
+         *         the boolean value of hasStarted_
+         */
+        hasStarted(request) {
+            if (request === undefined) {
+                // act as getter, if we have no request to change
+                return this.hasStarted_;
+            }
+            if (request === this.hasStarted_) {
+                return;
+            }
+            this.hasStarted_ = request;
+            if (this.hasStarted_) {
+                this.addClass('vjs-has-started');
+            } else {
+                this.removeClass('vjs-has-started');
+            }
+        }
+
+        /**
+         * Fired whenever the media begins or resumes playback
+         *
+         * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#dom-media-play}
+         * @fires Player#play
+         * @listens Tech#play
+         * @private
+         */
+        handleTechPlay_() {
+            this.removeClass('vjs-ended', 'vjs-paused');
+            this.addClass('vjs-playing');
+
+            // hide the poster when the user hits play
+            this.hasStarted(true);
+            /**
+             * Triggered whenever an {@link Tech#play} event happens. Indicates that
+             * playback has started or resumed.
+             *
+             * @event Player#play
+             * @type {Event}
+             */
+            this.trigger('play');
+        }
+
+        /**
+         * Retrigger the `ratechange` event that was triggered by the {@link Tech}.
+         *
+         * If there were any events queued while the playback rate was zero, fire
+         * those events now.
+         *
+         * @private
+         * @method Player#handleTechRateChange_
+         * @fires Player#ratechange
+         * @listens Tech#ratechange
+         */
+        handleTechRateChange_() {
+            if (this.tech_.playbackRate() > 0 && this.cache_.lastPlaybackRate === 0) {
+                this.queuedCallbacks_.forEach(queued => queued.callback(queued.event));
+                this.queuedCallbacks_ = [];
+            }
+            this.cache_.lastPlaybackRate = this.tech_.playbackRate();
+            /**
+             * Fires when the playing speed of the audio/video is changed
+             *
+             * @event Player#ratechange
+             * @type {event}
+             */
+            this.trigger('ratechange');
+        }
+
+        /**
+         * Retrigger the `waiting` event that was triggered by the {@link Tech}.
+         *
+         * @fires Player#waiting
+         * @listens Tech#waiting
+         * @private
+         */
+        handleTechWaiting_() {
+            this.addClass('vjs-waiting');
+            /**
+             * A readyState change on the DOM element has caused playback to stop.
+             *
+             * @event Player#waiting
+             * @type {Event}
+             */
+            this.trigger('waiting');
+
+            // Browsers may emit a timeupdate event after a waiting event. In order to prevent
+            // premature removal of the waiting class, wait for the time to change.
+            const timeWhenWaiting = this.currentTime();
+            const timeUpdateListener = () => {
+                if (timeWhenWaiting !== this.currentTime()) {
+                    this.removeClass('vjs-waiting');
+                    this.off('timeupdate', timeUpdateListener);
+                }
+            };
+            this.on('timeupdate', timeUpdateListener);
+        }
+
+        /**
+         * Retrigger the `canplay` event that was triggered by the {@link Tech}.
+         * > Note: This is not consistent between browsers. See #1351
+         *
+         * @fires Player#canplay
+         * @listens Tech#canplay
+         * @private
+         */
+        handleTechCanPlay_() {
+            this.removeClass('vjs-waiting');
+            /**
+             * The media has a readyState of HAVE_FUTURE_DATA or greater.
+             *
+             * @event Player#canplay
+             * @type {Event}
+             */
+            this.trigger('canplay');
+        }
+
+        /**
+         * Retrigger the `canplaythrough` event that was triggered by the {@link Tech}.
+         *
+         * @fires Player#canplaythrough
+         * @listens Tech#canplaythrough
+         * @private
+         */
+        handleTechCanPlayThrough_() {
+            this.removeClass('vjs-waiting');
+            /**
+             * The media has a readyState of HAVE_ENOUGH_DATA or greater. This means that the
+             * entire media file can be played without buffering.
+             *
+             * @event Player#canplaythrough
+             * @type {Event}
+             */
+            this.trigger('canplaythrough');
+        }
+
+        /**
+         * Retrigger the `playing` event that was triggered by the {@link Tech}.
+         *
+         * @fires Player#playing
+         * @listens Tech#playing
+         * @private
+         */
+        handleTechPlaying_() {
+            this.removeClass('vjs-waiting');
+            /**
+             * The media is no longer blocked from playback, and has started playing.
+             *
+             * @event Player#playing
+             * @type {Event}
+             */
+            this.trigger('playing');
+        }
+
+        /**
+         * Retrigger the `seeking` event that was triggered by the {@link Tech}.
+         *
+         * @fires Player#seeking
+         * @listens Tech#seeking
+         * @private
+         */
+        handleTechSeeking_() {
+            this.addClass('vjs-seeking');
+            /**
+             * Fired whenever the player is jumping to a new time
+             *
+             * @event Player#seeking
+             * @type {Event}
+             */
+            this.trigger('seeking');
+        }
+
+        /**
+         * Retrigger the `seeked` event that was triggered by the {@link Tech}.
+         *
+         * @fires Player#seeked
+         * @listens Tech#seeked
+         * @private
+         */
+        handleTechSeeked_() {
+            this.removeClass('vjs-seeking', 'vjs-ended');
+            /**
+             * Fired when the player has finished jumping to a new time
+             *
+             * @event Player#seeked
+             * @type {Event}
+             */
+            this.trigger('seeked');
+        }
+
+        /**
+         * Retrigger the `pause` event that was triggered by the {@link Tech}.
+         *
+         * @fires Player#pause
+         * @listens Tech#pause
+         * @private
+         */
+        handleTechPause_() {
+            this.removeClass('vjs-playing');
+            this.addClass('vjs-paused');
+            /**
+             * Fired whenever the media has been paused
+             *
+             * @event Player#pause
+             * @type {Event}
+             */
+            this.trigger('pause');
+        }
+
+        /**
+         * Retrigger the `ended` event that was triggered by the {@link Tech}.
+         *
+         * @fires Player#ended
+         * @listens Tech#ended
+         * @private
+         */
+        handleTechEnded_() {
+            this.addClass('vjs-ended');
+            this.removeClass('vjs-waiting');
+            if (this.options_.loop) {
+                this.currentTime(0);
+                this.play();
+            } else if (!this.paused()) {
+                this.pause();
+            }
+
+            /**
+             * Fired when the end of the media resource is reached (currentTime == duration)
+             *
+             * @event Player#ended
+             * @type {Event}
+             */
+            this.trigger('ended');
+        }
+
+        /**
+         * Fired when the duration of the media resource is first known or changed
+         *
+         * @listens Tech#durationchange
+         * @private
+         */
+        handleTechDurationChange_() {
+            this.duration(this.techGet_('duration'));
+        }
+
+        /**
+         * Handle a click on the media element to play/pause
+         *
+         * @param {Event} event
+         *        the event that caused this function to trigger
+         *
+         * @listens Tech#click
+         * @private
+         */
+        handleTechClick_(event) {
+            // When controls are disabled a click should not toggle playback because
+            // the click is considered a control
+            if (!this.controls_) {
+                return;
+            }
+            if (this.options_ === undefined || this.options_.userActions === undefined || this.options_.userActions.click === undefined || this.options_.userActions.click !== false) {
+                if (this.options_ !== undefined && this.options_.userActions !== undefined && typeof this.options_.userActions.click === 'function') {
+                    this.options_.userActions.click.call(this, event);
+                } else if (this.paused()) {
+                    silencePromise(this.play());
+                } else {
+                    this.pause();
+                }
+            }
+        }
+
+        /**
+         * Handle a double-click on the media element to enter/exit fullscreen
+         *
+         * @param {Event} event
+         *        the event that caused this function to trigger
+         *
+         * @listens Tech#dblclick
+         * @private
+         */
+        handleTechDoubleClick_(event) {
+            if (!this.controls_) {
+                return;
+            }
+
+            // we do not want to toggle fullscreen state
+            // when double-clicking inside a control bar or a modal
+            const inAllowedEls = Array.prototype.some.call(this.$$('.vjs-control-bar, .vjs-modal-dialog'), el => el.contains(event.target));
+            if (!inAllowedEls) {
+                /*
+         * options.userActions.doubleClick
+         *
+         * If `undefined` or `true`, double-click toggles fullscreen if controls are present
+         * Set to `false` to disable double-click handling
+         * Set to a function to substitute an external double-click handler
+         */
+                if (this.options_ === undefined || this.options_.userActions === undefined || this.options_.userActions.doubleClick === undefined || this.options_.userActions.doubleClick !== false) {
+                    if (this.options_ !== undefined && this.options_.userActions !== undefined && typeof this.options_.userActions.doubleClick === 'function') {
+                        this.options_.userActions.doubleClick.call(this, event);
+                    } else if (this.isFullscreen()) {
+                        this.exitFullscreen();
+                    } else {
+                        this.requestFullscreen();
+                    }
+                }
+            }
+        }
+
+        /**
+         * Handle a tap on the media element. It will toggle the user
+         * activity state, which hides and shows the controls.
+         *
+         * @listens Tech#tap
+         * @private
+         */
+        handleTechTap_() {
+            this.userActive(!this.userActive());
+        }
+
+        /**
+         * Handle touch to start
+         *
+         * @listens Tech#touchstart
+         * @private
+         */
+        handleTechTouchStart_() {
+            this.userWasActive = this.userActive();
+        }
+
+        /**
+         * Handle touch to move
+         *
+         * @listens Tech#touchmove
+         * @private
+         */
+        handleTechTouchMove_() {
+            if (this.userWasActive) {
+                this.reportUserActivity();
+            }
+        }
+
+        /**
+         * Handle touch to end
+         *
+         * @param {Event} event
+         *        the touchend event that triggered
+         *        this function
+         *
+         * @listens Tech#touchend
+         * @private
+         */
+        handleTechTouchEnd_(event) {
+            // Stop the mouse events from also happening
+            if (event.cancelable) {
+                event.preventDefault();
+            }
+        }
+
+        /**
+         * @private
+         */
+        toggleFullscreenClass_() {
+            if (this.isFullscreen()) {
+                this.addClass('vjs-fullscreen');
+            } else {
+                this.removeClass('vjs-fullscreen');
+            }
+        }
+
+        /**
+         * when the document fschange event triggers it calls this
+         */
+        documentFullscreenChange_(e) {
+            const targetPlayer = e.target.player;
+
+            // if another player was fullscreen
+            // do a null check for targetPlayer because older firefox's would put document as e.target
+            if (targetPlayer && targetPlayer !== this) {
+                return;
+            }
+            const el = this.el();
+            let isFs = document[this.fsApi_.fullscreenElement] === el;
+            if (!isFs && el.matches) {
+                isFs = el.matches(':' + this.fsApi_.fullscreen);
+            } else if (!isFs && el.msMatchesSelector) {
+                isFs = el.msMatchesSelector(':' + this.fsApi_.fullscreen);
+            }
+            this.isFullscreen(isFs);
+        }
+
+        /**
+         * Handle Tech Fullscreen Change
+         *
+         * @param {Event} event
+         *        the fullscreenchange event that triggered this function
+         *
+         * @param {Object} data
+         *        the data that was sent with the event
+         *
+         * @private
+         * @listens Tech#fullscreenchange
+         * @fires Player#fullscreenchange
+         */
+        handleTechFullscreenChange_(event, data) {
+            if (data) {
+                if (data.nativeIOSFullscreen) {
+                    this.addClass('vjs-ios-native-fs');
+                    this.tech_.one('webkitendfullscreen', () => {
+                        this.removeClass('vjs-ios-native-fs');
+                    });
+                }
+                this.isFullscreen(data.isFullscreen);
+            }
+        }
+        handleTechFullscreenError_(event, err) {
+            this.trigger('fullscreenerror', err);
+        }
+
+        /**
+         * @private
+         */
+        togglePictureInPictureClass_() {
+            if (this.isInPictureInPicture()) {
+                this.addClass('vjs-picture-in-picture');
+            } else {
+                this.removeClass('vjs-picture-in-picture');
+            }
+        }
+
+        /**
+         * Handle Tech Enter Picture-in-Picture.
+         *
+         * @param {Event} event
+         *        the enterpictureinpicture event that triggered this function
+         *
+         * @private
+         * @listens Tech#enterpictureinpicture
+         */
+        handleTechEnterPictureInPicture_(event) {
+            this.isInPictureInPicture(true);
+        }
+
+        /**
+         * Handle Tech Leave Picture-in-Picture.
+         *
+         * @param {Event} event
+         *        the leavepictureinpicture event that triggered this function
+         *
+         * @private
+         * @listens Tech#leavepictureinpicture
+         */
+        handleTechLeavePictureInPicture_(event) {
+            this.isInPictureInPicture(false);
+        }
+
+        /**
+         * Fires when an error occurred during the loading of an audio/video.
+         *
+         * @private
+         * @listens Tech#error
+         */
+        handleTechError_() {
+            const error = this.tech_.error();
+            this.error(error);
+        }
+
+        /**
+         * Retrigger the `textdata` event that was triggered by the {@link Tech}.
+         *
+         * @fires Player#textdata
+         * @listens Tech#textdata
+         * @private
+         */
+        handleTechTextData_() {
+            let data = null;
+            if (arguments.length > 1) {
+                data = arguments[1];
+            }
+
+            /**
+             * Fires when we get a textdata event from tech
+             *
+             * @event Player#textdata
+             * @type {Event}
+             */
+            this.trigger('textdata', data);
+        }
+
+        /**
+         * Get object for cached values.
+         *
+         * @return {Object}
+         *         get the current object cache
+         */
+        getCache() {
+            return this.cache_;
+        }
+
+        /**
+         * Resets the internal cache object.
+         *
+         * Using this function outside the player constructor or reset method may
+         * have unintended side-effects.
+         *
+         * @private
+         */
+        resetCache_() {
+            this.cache_ = {
+                // Right now, the currentTime is not _really_ cached because it is always
+                // retrieved from the tech (see: currentTime). However, for completeness,
+                // we set it to zero here to ensure that if we do start actually caching
+                // it, we reset it along with everything else.
+                currentTime: 0,
+                initTime: 0,
+                inactivityTimeout: this.options_.inactivityTimeout,
+                duration: NaN,
+                lastVolume: 1,
+                lastPlaybackRate: this.defaultPlaybackRate(),
+                media: null,
+                src: '',
+                source: {},
+                sources: [],
+                playbackRates: [],
+                volume: 1
+            };
+        }
+
+        /**
+         * Pass values to the playback tech
+         *
+         * @param {string} [method]
+         *        the method to call
+         *
+         * @param {Object} arg
+         *        the argument to pass
+         *
+         * @private
+         */
+        techCall_(method, arg) {
+            // If it's not ready yet, call method when it is
+
+            this.ready(function () {
+                if (method in allowedSetters) {
+                    return set(this.middleware_, this.tech_, method, arg);
+                } else if (method in allowedMediators) {
+                    return mediate(this.middleware_, this.tech_, method, arg);
+                }
+                try {
+                    if (this.tech_) {
+                        this.tech_[method](arg);
+                    }
+                } catch (e) {
+                    log$1(e);
+                    throw e;
+                }
+            }, true);
+        }
+
+        /**
+         * Mediate attempt to call playback tech method
+         * and return the value of the method called.
+         *
+         * @param {string} method
+         *        Tech method
+         *
+         * @return {*}
+         *         Value returned by the tech method called, undefined if tech
+         *         is not ready or tech method is not present
+         *
+         * @private
+         */
+        techGet_(method) {
+            if (!this.tech_ || !this.tech_.isReady_) {
+                return;
+            }
+            if (method in allowedGetters) {
+                return get(this.middleware_, this.tech_, method);
+            } else if (method in allowedMediators) {
+                return mediate(this.middleware_, this.tech_, method);
+            }
+
+            // Log error when playback tech object is present but method
+            // is undefined or unavailable
+            try {
+                return this.tech_[method]();
+            } catch (e) {
+                // When building additional tech libs, an expected method may not be defined yet
+                if (this.tech_[method] === undefined) {
+                    log$1(`Video.js: ${method} method not defined for ${this.techName_} playback technology.`, e);
+                    throw e;
+                }
+
+                // When a method isn't available on the object it throws a TypeError
+                if (e.name === 'TypeError') {
+                    log$1(`Video.js: ${method} unavailable on ${this.techName_} playback technology element.`, e);
+                    this.tech_.isReady_ = false;
+                    throw e;
+                }
+
+                // If error unknown, just log and throw
+                log$1(e);
+                throw e;
+            }
+        }
+
+        /**
+         * Attempt to begin playback at the first opportunity.
+         *
+         * @return {Promise|undefined}
+         *         Returns a promise if the browser supports Promises (or one
+         *         was passed in as an option). This promise will be resolved on
+         *         the return value of play. If this is undefined it will fulfill the
+         *         promise chain otherwise the promise chain will be fulfilled when
+         *         the promise from play is fulfilled.
+         */
+        play() {
+            return new Promise(resolve => {
+                this.play_(resolve);
+            });
+        }
+
+        /**
+         * The actual logic for play, takes a callback that will be resolved on the
+         * return value of play. This allows us to resolve to the play promise if there
+         * is one on modern browsers.
+         *
+         * @private
+         * @param {Function} [callback]
+         *        The callback that should be called when the techs play is actually called
+         */
+        play_(callback = silencePromise) {
+            this.playCallbacks_.push(callback);
+            const isSrcReady = Boolean(!this.changingSrc_ && (this.src() || this.currentSrc()));
+            const isSafariOrIOS = Boolean(IS_ANY_SAFARI || IS_IOS);
+
+            // treat calls to play_ somewhat like the `one` event function
+            if (this.waitToPlay_) {
+                this.off(['ready', 'loadstart'], this.waitToPlay_);
+                this.waitToPlay_ = null;
+            }
+
+            // if the player/tech is not ready or the src itself is not ready
+            // queue up a call to play on `ready` or `loadstart`
+            if (!this.isReady_ || !isSrcReady) {
+                this.waitToPlay_ = e => {
+                    this.play_();
+                };
+                this.one(['ready', 'loadstart'], this.waitToPlay_);
+
+                // if we are in Safari, there is a high chance that loadstart will trigger after the gesture timeperiod
+                // in that case, we need to prime the video element by calling load so it'll be ready in time
+                if (!isSrcReady && isSafariOrIOS) {
+                    this.load();
+                }
+                return;
+            }
+
+            // If the player/tech is ready and we have a source, we can attempt playback.
+            const val = this.techGet_('play');
+
+            // For native playback, reset the progress bar if we get a play call from a replay.
+            const isNativeReplay = isSafariOrIOS && this.hasClass('vjs-ended');
+            if (isNativeReplay) {
+                this.resetProgressBar_();
+            }
+            // play was terminated if the returned value is null
+            if (val === null) {
+                this.runPlayTerminatedQueue_();
+            } else {
+                this.runPlayCallbacks_(val);
+            }
+        }
+
+        /**
+         * These functions will be run when if play is terminated. If play
+         * runPlayCallbacks_ is run these function will not be run. This allows us
+         * to differentiate between a terminated play and an actual call to play.
+         */
+        runPlayTerminatedQueue_() {
+            const queue = this.playTerminatedQueue_.slice(0);
+            this.playTerminatedQueue_ = [];
+            queue.forEach(function (q) {
+                q();
+            });
+        }
+
+        /**
+         * When a callback to play is delayed we have to run these
+         * callbacks when play is actually called on the tech. This function
+         * runs the callbacks that were delayed and accepts the return value
+         * from the tech.
+         *
+         * @param {undefined|Promise} val
+         *        The return value from the tech.
+         */
+        runPlayCallbacks_(val) {
+            const callbacks = this.playCallbacks_.slice(0);
+            this.playCallbacks_ = [];
+            // clear play terminatedQueue since we finished a real play
+            this.playTerminatedQueue_ = [];
+            callbacks.forEach(function (cb) {
+                cb(val);
+            });
+        }
+
+        /**
+         * Pause the video playback
+         *
+         * @return {Player}
+         *         A reference to the player object this function was called on
+         */
+        pause() {
+            this.techCall_('pause');
+        }
+
+        /**
+         * Check if the player is paused or has yet to play
+         *
+         * @return {boolean}
+         *         - false: if the media is currently playing
+         *         - true: if media is not currently playing
+         */
+        paused() {
+            // The initial state of paused should be true (in Safari it's actually false)
+            return this.techGet_('paused') === false ? false : true;
+        }
+
+        /**
+         * Get a TimeRange object representing the current ranges of time that the user
+         * has played.
+         *
+         * @return { import('./utils/time').TimeRange }
+         *         A time range object that represents all the increments of time that have
+         *         been played.
+         */
+        played() {
+            return this.techGet_('played') || createTimeRanges$1(0, 0);
+        }
+
+        /**
+         * Returns whether or not the user is "scrubbing". Scrubbing is
+         * when the user has clicked the progress bar handle and is
+         * dragging it along the progress bar.
+         *
+         * @param {boolean} [isScrubbing]
+         *        whether the user is or is not scrubbing
+         *
+         * @return {boolean}
+         *         The value of scrubbing when getting
+         */
+        scrubbing(isScrubbing) {
+            if (typeof isScrubbing === 'undefined') {
+                return this.scrubbing_;
+            }
+            this.scrubbing_ = !!isScrubbing;
+            this.techCall_('setScrubbing', this.scrubbing_);
+            if (isScrubbing) {
+                this.addClass('vjs-scrubbing');
+            } else {
+                this.removeClass('vjs-scrubbing');
+            }
+        }
+
+        /**
+         * Get or set the current time (in seconds)
+         *
+         * @param {number|string} [seconds]
+         *        The time to seek to in seconds
+         *
+         * @return {number}
+         *         - the current time in seconds when getting
+         */
+        currentTime(seconds) {
+            if (typeof seconds !== 'undefined') {
+                if (seconds < 0) {
+                    seconds = 0;
+                }
+                if (!this.isReady_ || this.changingSrc_ || !this.tech_ || !this.tech_.isReady_) {
+                    this.cache_.initTime = seconds;
+                    this.off('canplay', this.boundApplyInitTime_);
+                    this.one('canplay', this.boundApplyInitTime_);
+                    return;
+                }
+                this.techCall_('setCurrentTime', seconds);
+                this.cache_.initTime = 0;
+                return;
+            }
+
+            // cache last currentTime and return. default to 0 seconds
+            //
+            // Caching the currentTime is meant to prevent a massive amount of reads on the tech's
+            // currentTime when scrubbing, but may not provide much performance benefit after all.
+            // Should be tested. Also something has to read the actual current time or the cache will
+            // never get updated.
+            this.cache_.currentTime = this.techGet_('currentTime') || 0;
+            return this.cache_.currentTime;
+        }
+
+        /**
+         * Apply the value of initTime stored in cache as currentTime.
+         *
+         * @private
+         */
+        applyInitTime_() {
+            this.currentTime(this.cache_.initTime);
+        }
+
+        /**
+         * Normally gets the length in time of the video in seconds;
+         * in all but the rarest use cases an argument will NOT be passed to the method
+         *
+         * > **NOTE**: The video must have started loading before the duration can be
+         * known, and depending on preload behaviour may not be known until the video starts
+         * playing.
+         *
+         * @fires Player#durationchange
+         *
+         * @param {number} [seconds]
+         *        The duration of the video to set in seconds
+         *
+         * @return {number}
+         *         - The duration of the video in seconds when getting
+         */
+        duration(seconds) {
+            if (seconds === undefined) {
+                // return NaN if the duration is not known
+                return this.cache_.duration !== undefined ? this.cache_.duration : NaN;
+            }
+            seconds = parseFloat(seconds);
+
+            // Standardize on Infinity for signaling video is live
+            if (seconds < 0) {
+                seconds = Infinity;
+            }
+            if (seconds !== this.cache_.duration) {
+                // Cache the last set value for optimized scrubbing
+                this.cache_.duration = seconds;
+                if (seconds === Infinity) {
+                    this.addClass('vjs-live');
+                } else {
+                    this.removeClass('vjs-live');
+                }
+                if (!isNaN(seconds)) {
+                    // Do not fire durationchange unless the duration value is known.
+                    // @see [Spec]{@link https://www.w3.org/TR/2011/WD-html5-20110113/video.html#media-element-load-algorithm}
+
+                    /**
+                     * @event Player#durationchange
+                     * @type {Event}
+                     */
+                    this.trigger('durationchange');
+                }
+            }
+        }
+
+        /**
+         * Calculates how much time is left in the video. Not part
+         * of the native video API.
+         *
+         * @return {number}
+         *         The time remaining in seconds
+         */
+        remainingTime() {
+            return this.duration() - this.currentTime();
+        }
+
+        /**
+         * A remaining time function that is intended to be used when
+         * the time is to be displayed directly to the user.
+         *
+         * @return {number}
+         *         The rounded time remaining in seconds
+         */
+        remainingTimeDisplay() {
+            return Math.floor(this.duration()) - Math.floor(this.currentTime());
+        }
+
+        //
+        // Kind of like an array of portions of the video that have been downloaded.
+
+        /**
+         * Get a TimeRange object with an array of the times of the video
+         * that have been downloaded. If you just want the percent of the
+         * video that's been downloaded, use bufferedPercent.
+         *
+         * @see [Buffered Spec]{@link http://dev.w3.org/html5/spec/video.html#dom-media-buffered}
+         *
+         * @return { import('./utils/time').TimeRange }
+         *         A mock {@link TimeRanges} object (following HTML spec)
+         */
+        buffered() {
+            let buffered = this.techGet_('buffered');
+            if (!buffered || !buffered.length) {
+                buffered = createTimeRanges$1(0, 0);
+            }
+            return buffered;
+        }
+
+        /**
+         * Get the percent (as a decimal) of the video that's been downloaded.
+         * This method is not a part of the native HTML video API.
+         *
+         * @return {number}
+         *         A decimal between 0 and 1 representing the percent
+         *         that is buffered 0 being 0% and 1 being 100%
+         */
+        bufferedPercent() {
+            return bufferedPercent(this.buffered(), this.duration());
+        }
+
+        /**
+         * Get the ending time of the last buffered time range
+         * This is used in the progress bar to encapsulate all time ranges.
+         *
+         * @return {number}
+         *         The end of the last buffered time range
+         */
+        bufferedEnd() {
+            const buffered = this.buffered();
+            const duration = this.duration();
+            let end = buffered.end(buffered.length - 1);
+            if (end > duration) {
+                end = duration;
+            }
+            return end;
+        }
+
+        /**
+         * Get or set the current volume of the media
+         *
+         * @param  {number} [percentAsDecimal]
+         *         The new volume as a decimal percent:
+         *         - 0 is muted/0%/off
+         *         - 1.0 is 100%/full
+         *         - 0.5 is half volume or 50%
+         *
+         * @return {number}
+         *         The current volume as a percent when getting
+         */
+        volume(percentAsDecimal) {
+            let vol;
+            if (percentAsDecimal !== undefined) {
+                // Force value to between 0 and 1
+                vol = Math.max(0, Math.min(1, parseFloat(percentAsDecimal)));
+                this.cache_.volume = vol;
+                this.techCall_('setVolume', vol);
+                if (vol > 0) {
+                    this.lastVolume_(vol);
+                }
+                return;
+            }
+
+            // Default to 1 when returning current volume.
+            vol = parseFloat(this.techGet_('volume'));
+            return isNaN(vol) ? 1 : vol;
+        }
+
+        /**
+         * Get the current muted state, or turn mute on or off
+         *
+         * @param {boolean} [muted]
+         *        - true to mute
+         *        - false to unmute
+         *
+         * @return {boolean}
+         *         - true if mute is on and getting
+         *         - false if mute is off and getting
+         */
+        muted(muted) {
+            if (muted !== undefined) {
+                this.techCall_('setMuted', muted);
+                return;
+            }
+            return this.techGet_('muted') || false;
+        }
+
+        /**
+         * Get the current defaultMuted state, or turn defaultMuted on or off. defaultMuted
+         * indicates the state of muted on initial playback.
+         *
+         * ```js
+         *   var myPlayer = videojs('some-player-id');
+         *
+         *   myPlayer.src("http://www.example.com/path/to/video.mp4");
+         *
+         *   // get, should be false
+         *   console.log(myPlayer.defaultMuted());
+         *   // set to true
+         *   myPlayer.defaultMuted(true);
+         *   // get should be true
+         *   console.log(myPlayer.defaultMuted());
+         * ```
+         *
+         * @param {boolean} [defaultMuted]
+         *        - true to mute
+         *        - false to unmute
+         *
+         * @return {boolean|Player}
+         *         - true if defaultMuted is on and getting
+         *         - false if defaultMuted is off and getting
+         *         - A reference to the current player when setting
+         */
+        defaultMuted(defaultMuted) {
+            if (defaultMuted !== undefined) {
+                return this.techCall_('setDefaultMuted', defaultMuted);
+            }
+            return this.techGet_('defaultMuted') || false;
+        }
+
+        /**
+         * Get the last volume, or set it
+         *
+         * @param  {number} [percentAsDecimal]
+         *         The new last volume as a decimal percent:
+         *         - 0 is muted/0%/off
+         *         - 1.0 is 100%/full
+         *         - 0.5 is half volume or 50%
+         *
+         * @return {number}
+         *         the current value of lastVolume as a percent when getting
+         *
+         * @private
+         */
+        lastVolume_(percentAsDecimal) {
+            if (percentAsDecimal !== undefined && percentAsDecimal !== 0) {
+                this.cache_.lastVolume = percentAsDecimal;
+                return;
+            }
+            return this.cache_.lastVolume;
+        }
+
+        /**
+         * Check if current tech can support native fullscreen
+         * (e.g. with built in controls like iOS)
+         *
+         * @return {boolean}
+         *         if native fullscreen is supported
+         */
+        supportsFullScreen() {
+            return this.techGet_('supportsFullScreen') || false;
+        }
+
+        /**
+         * Check if the player is in fullscreen mode or tell the player that it
+         * is or is not in fullscreen mode.
+         *
+         * > NOTE: As of the latest HTML5 spec, isFullscreen is no longer an official
+         * property and instead document.fullscreenElement is used. But isFullscreen is
+         * still a valuable property for internal player workings.
+         *
+         * @param  {boolean} [isFS]
+         *         Set the players current fullscreen state
+         *
+         * @return {boolean}
+         *         - true if fullscreen is on and getting
+         *         - false if fullscreen is off and getting
+         */
+        isFullscreen(isFS) {
+            if (isFS !== undefined) {
+                const oldValue = this.isFullscreen_;
+                this.isFullscreen_ = Boolean(isFS);
+
+                // if we changed fullscreen state and we're in prefixed mode, trigger fullscreenchange
+                // this is the only place where we trigger fullscreenchange events for older browsers
+                // fullWindow mode is treated as a prefixed event and will get a fullscreenchange event as well
+                if (this.isFullscreen_ !== oldValue && this.fsApi_.prefixed) {
+                    /**
+                     * @event Player#fullscreenchange
+                     * @type {Event}
+                     */
+                    this.trigger('fullscreenchange');
+                }
+                this.toggleFullscreenClass_();
+                return;
+            }
+            return this.isFullscreen_;
+        }
+
+        /**
+         * Increase the size of the video to full screen
+         * In some browsers, full screen is not supported natively, so it enters
+         * "full window mode", where the video fills the browser window.
+         * In browsers and devices that support native full screen, sometimes the
+         * browser's default controls will be shown, and not the Video.js custom skin.
+         * This includes most mobile devices (iOS, Android) and older versions of
+         * Safari.
+         *
+         * @param  {Object} [fullscreenOptions]
+         *         Override the player fullscreen options
+         *
+         * @fires Player#fullscreenchange
+         */
+        requestFullscreen(fullscreenOptions) {
+            if (this.isInPictureInPicture()) {
+                this.exitPictureInPicture();
+            }
+            const self = this;
+            return new Promise((resolve, reject) => {
+                function offHandler() {
+                    self.off('fullscreenerror', errorHandler);
+                    self.off('fullscreenchange', changeHandler);
+                }
+                function changeHandler() {
+                    offHandler();
+                    resolve();
+                }
+                function errorHandler(e, err) {
+                    offHandler();
+                    reject(err);
+                }
+                self.one('fullscreenchange', changeHandler);
+                self.one('fullscreenerror', errorHandler);
+                const promise = self.requestFullscreenHelper_(fullscreenOptions);
+                if (promise) {
+                    promise.then(offHandler, offHandler);
+                    promise.then(resolve, reject);
+                }
+            });
+        }
+        requestFullscreenHelper_(fullscreenOptions) {
+            let fsOptions;
+
+            // Only pass fullscreen options to requestFullscreen in spec-compliant browsers.
+            // Use defaults or player configured option unless passed directly to this method.
+            if (!this.fsApi_.prefixed) {
+                fsOptions = this.options_.fullscreen && this.options_.fullscreen.options || {};
+                if (fullscreenOptions !== undefined) {
+                    fsOptions = fullscreenOptions;
+                }
+            }
+
+            // This method works as follows:
+            // 1. if a fullscreen api is available, use it
+            //   1. call requestFullscreen with potential options
+            //   2. if we got a promise from above, use it to update isFullscreen()
+            // 2. otherwise, if the tech supports fullscreen, call `enterFullScreen` on it.
+            //   This is particularly used for iPhone, older iPads, and non-safari browser on iOS.
+            // 3. otherwise, use "fullWindow" mode
+            if (this.fsApi_.requestFullscreen) {
+                const promise = this.el_[this.fsApi_.requestFullscreen](fsOptions);
+
+                // Even on browsers with promise support this may not return a promise
+                if (promise) {
+                    promise.then(() => this.isFullscreen(true), () => this.isFullscreen(false));
+                }
+                return promise;
+            } else if (this.tech_.supportsFullScreen() && !this.options_.preferFullWindow === true) {
+                // we can't take the video.js controls fullscreen but we can go fullscreen
+                // with native controls
+                this.techCall_('enterFullScreen');
+            } else {
+                // fullscreen isn't supported so we'll just stretch the video element to
+                // fill the viewport
+                this.enterFullWindow();
+            }
+        }
+
+        /**
+         * Return the video to its normal size after having been in full screen mode
+         *
+         * @fires Player#fullscreenchange
+         */
+        exitFullscreen() {
+            const self = this;
+            return new Promise((resolve, reject) => {
+                function offHandler() {
+                    self.off('fullscreenerror', errorHandler);
+                    self.off('fullscreenchange', changeHandler);
+                }
+                function changeHandler() {
+                    offHandler();
+                    resolve();
+                }
+                function errorHandler(e, err) {
+                    offHandler();
+                    reject(err);
+                }
+                self.one('fullscreenchange', changeHandler);
+                self.one('fullscreenerror', errorHandler);
+                const promise = self.exitFullscreenHelper_();
+                if (promise) {
+                    promise.then(offHandler, offHandler);
+                    // map the promise to our resolve/reject methods
+                    promise.then(resolve, reject);
+                }
+            });
+        }
+        exitFullscreenHelper_() {
+            if (this.fsApi_.requestFullscreen) {
+                const promise = document[this.fsApi_.exitFullscreen]();
+
+                // Even on browsers with promise support this may not return a promise
+                if (promise) {
+                    // we're splitting the promise here, so, we want to catch the
+                    // potential error so that this chain doesn't have unhandled errors
+                    silencePromise(promise.then(() => this.isFullscreen(false)));
+                }
+                return promise;
+            } else if (this.tech_.supportsFullScreen() && !this.options_.preferFullWindow === true) {
+                this.techCall_('exitFullScreen');
+            } else {
+                this.exitFullWindow();
+            }
+        }
+
+        /**
+         * When fullscreen isn't supported we can stretch the
+         * video container to as wide as the browser will let us.
+         *
+         * @fires Player#enterFullWindow
+         */
+        enterFullWindow() {
+            this.isFullscreen(true);
+            this.isFullWindow = true;
+
+            // Storing original doc overflow value to return to when fullscreen is off
+            this.docOrigOverflow = document.documentElement.style.overflow;
+
+            // Add listener for esc key to exit fullscreen
+            on(document, 'keydown', this.boundFullWindowOnEscKey_);
+
+            // Hide any scroll bars
+            document.documentElement.style.overflow = 'hidden';
+
+            // Apply fullscreen styles
+            addClass(document.body, 'vjs-full-window');
+
+            /**
+             * @event Player#enterFullWindow
+             * @type {Event}
+             */
+            this.trigger('enterFullWindow');
+        }
+
+        /**
+         * Check for call to either exit full window or
+         * full screen on ESC key
+         *
+         * @param {string} event
+         *        Event to check for key press
+         */
+        fullWindowOnEscKey(event) {
+            if (keycode.isEventKey(event, 'Esc')) {
+                if (this.isFullscreen() === true) {
+                    if (!this.isFullWindow) {
+                        this.exitFullscreen();
+                    } else {
+                        this.exitFullWindow();
+                    }
+                }
+            }
+        }
+
+        /**
+         * Exit full window
+         *
+         * @fires Player#exitFullWindow
+         */
+        exitFullWindow() {
+            this.isFullscreen(false);
+            this.isFullWindow = false;
+            off(document, 'keydown', this.boundFullWindowOnEscKey_);
+
+            // Unhide scroll bars.
+            document.documentElement.style.overflow = this.docOrigOverflow;
+
+            // Remove fullscreen styles
+            removeClass(document.body, 'vjs-full-window');
+
+            // Resize the box, controller, and poster to original sizes
+            // this.positionAll();
+            /**
+             * @event Player#exitFullWindow
+             * @type {Event}
+             */
+            this.trigger('exitFullWindow');
+        }
+
+        /**
+         * Disable Picture-in-Picture mode.
+         *
+         * @param {boolean} value
+         *                  - true will disable Picture-in-Picture mode
+         *                  - false will enable Picture-in-Picture mode
+         */
+        disablePictureInPicture(value) {
+            if (value === undefined) {
+                return this.techGet_('disablePictureInPicture');
+            }
+            this.techCall_('setDisablePictureInPicture', value);
+            this.options_.disablePictureInPicture = value;
+            this.trigger('disablepictureinpicturechanged');
+        }
+
+        /**
+         * Check if the player is in Picture-in-Picture mode or tell the player that it
+         * is or is not in Picture-in-Picture mode.
+         *
+         * @param  {boolean} [isPiP]
+         *         Set the players current Picture-in-Picture state
+         *
+         * @return {boolean}
+         *         - true if Picture-in-Picture is on and getting
+         *         - false if Picture-in-Picture is off and getting
+         */
+        isInPictureInPicture(isPiP) {
+            if (isPiP !== undefined) {
+                this.isInPictureInPicture_ = !!isPiP;
+                this.togglePictureInPictureClass_();
+                return;
+            }
+            return !!this.isInPictureInPicture_;
+        }
+
+        /**
+         * Create a floating video window always on top of other windows so that users may
+         * continue consuming media while they interact with other content sites, or
+         * applications on their device.
+         *
+         * This can use document picture-in-picture or element picture in picture
+         *
+         * Set `enableDocumentPictureInPicture` to `true` to use docPiP on a supported browser
+         * Else set `disablePictureInPicture` to `false` to disable elPiP on a supported browser
+         *
+         *
+         * @see [Spec]{@link https://w3c.github.io/picture-in-picture/}
+         * @see [Spec]{@link https://wicg.github.io/document-picture-in-picture/}
+         *
+         * @fires Player#enterpictureinpicture
+         *
+         * @return {Promise}
+         *         A promise with a Picture-in-Picture window.
+         */
+        requestPictureInPicture() {
+            if (this.options_.enableDocumentPictureInPicture && window.documentPictureInPicture) {
+                const pipContainer = document.createElement(this.el().tagName);
+                pipContainer.classList = this.el().classList;
+                pipContainer.classList.add('vjs-pip-container');
+                if (this.posterImage) {
+                    pipContainer.appendChild(this.posterImage.el().cloneNode(true));
+                }
+                if (this.titleBar) {
+                    pipContainer.appendChild(this.titleBar.el().cloneNode(true));
+                }
+                pipContainer.appendChild(createEl('p', {
+                    className: 'vjs-pip-text'
+                }, {}, this.localize('Playing in picture-in-picture')));
+                return window.documentPictureInPicture.requestWindow({
+                    // The aspect ratio won't be correct, Chrome bug https://crbug.com/1407629
+                    initialAspectRatio: this.videoWidth() / this.videoHeight(),
+                    copyStyleSheets: true
+                }).then(pipWindow => {
+                    this.el_.parentNode.insertBefore(pipContainer, this.el_);
+                    pipWindow.document.body.append(this.el_);
+                    pipWindow.document.body.classList.add('vjs-pip-window');
+                    this.player_.isInPictureInPicture(true);
+                    this.player_.trigger('enterpictureinpicture');
+
+                    // Listen for the PiP closing event to move the video back.
+                    pipWindow.addEventListener('unload', event => {
+                        const pipVideo = event.target.querySelector('.video-js');
+                        pipContainer.replaceWith(pipVideo);
+                        this.player_.isInPictureInPicture(false);
+                        this.player_.trigger('leavepictureinpicture');
+                    });
+                    return pipWindow;
+                });
+            }
+            if ('pictureInPictureEnabled' in document && this.disablePictureInPicture() === false) {
+                /**
+                 * This event fires when the player enters picture in picture mode
+                 *
+                 * @event Player#enterpictureinpicture
+                 * @type {Event}
+                 */
+                return this.techGet_('requestPictureInPicture');
+            }
+            return Promise.reject('No PiP mode is available');
+        }
+
+        /**
+         * Exit Picture-in-Picture mode.
+         *
+         * @see [Spec]{@link https://wicg.github.io/picture-in-picture}
+         *
+         * @fires Player#leavepictureinpicture
+         *
+         * @return {Promise}
+         *         A promise.
+         */
+        exitPictureInPicture() {
+            if (window.documentPictureInPicture && window.documentPictureInPicture.window) {
+                // With documentPictureInPicture, Player#leavepictureinpicture is fired in the unload handler
+                window.documentPictureInPicture.window.close();
+                return Promise.resolve();
+            }
+            if ('pictureInPictureEnabled' in document) {
+                /**
+                 * This event fires when the player leaves picture in picture mode
+                 *
+                 * @event Player#leavepictureinpicture
+                 * @type {Event}
+                 */
+                return document.exitPictureInPicture();
+            }
+        }
+
+        /**
+         * Called when this Player has focus and a key gets pressed down, or when
+         * any Component of this player receives a key press that it doesn't handle.
+         * This allows player-wide hotkeys (either as defined below, or optionally
+         * by an external function).
+         *
+         * @param {Event} event
+         *        The `keydown` event that caused this function to be called.
+         *
+         * @listens keydown
+         */
+        handleKeyDown(event) {
+            const {
+                userActions
+            } = this.options_;
+
+            // Bail out if hotkeys are not configured.
+            if (!userActions || !userActions.hotkeys) {
+                return;
+            }
+
+            // Function that determines whether or not to exclude an element from
+            // hotkeys handling.
+            const excludeElement = el => {
+                const tagName = el.tagName.toLowerCase();
+
+                // The first and easiest test is for `contenteditable` elements.
+                if (el.isContentEditable) {
+                    return true;
+                }
+
+                // Inputs matching these types will still trigger hotkey handling as
+                // they are not text inputs.
+                const allowedInputTypes = ['button', 'checkbox', 'hidden', 'radio', 'reset', 'submit'];
+                if (tagName === 'input') {
+                    return allowedInputTypes.indexOf(el.type) === -1;
+                }
+
+                // The final test is by tag name. These tags will be excluded entirely.
+                const excludedTags = ['textarea'];
+                return excludedTags.indexOf(tagName) !== -1;
+            };
+
+            // Bail out if the user is focused on an interactive form element.
+            if (excludeElement(this.el_.ownerDocument.activeElement)) {
+                return;
+            }
+            if (typeof userActions.hotkeys === 'function') {
+                userActions.hotkeys.call(this, event);
+            } else {
+                this.handleHotkeys(event);
+            }
+        }
+
+        /**
+         * Called when this Player receives a hotkey keydown event.
+         * Supported player-wide hotkeys are:
+         *
+         *   f          - toggle fullscreen
+         *   m          - toggle mute
+         *   k or Space - toggle play/pause
+         *
+         * @param {Event} event
+         *        The `keydown` event that caused this function to be called.
+         */
+        handleHotkeys(event) {
+            const hotkeys = this.options_.userActions ? this.options_.userActions.hotkeys : {};
+
+            // set fullscreenKey, muteKey, playPauseKey from `hotkeys`, use defaults if not set
+            const {
+                fullscreenKey = keydownEvent => keycode.isEventKey(keydownEvent, 'f'),
+                muteKey = keydownEvent => keycode.isEventKey(keydownEvent, 'm'),
+                playPauseKey = keydownEvent => keycode.isEventKey(keydownEvent, 'k') || keycode.isEventKey(keydownEvent, 'Space')
+            } = hotkeys;
+            if (fullscreenKey.call(this, event)) {
+                event.preventDefault();
+                event.stopPropagation();
+                const FSToggle = Component$1.getComponent('FullscreenToggle');
+                if (document[this.fsApi_.fullscreenEnabled] !== false) {
+                    FSToggle.prototype.handleClick.call(this, event);
+                }
+            } else if (muteKey.call(this, event)) {
+                event.preventDefault();
+                event.stopPropagation();
+                const MuteToggle = Component$1.getComponent('MuteToggle');
+                MuteToggle.prototype.handleClick.call(this, event);
+            } else if (playPauseKey.call(this, event)) {
+                event.preventDefault();
+                event.stopPropagation();
+                const PlayToggle = Component$1.getComponent('PlayToggle');
+                PlayToggle.prototype.handleClick.call(this, event);
+            }
+        }
+
+        /**
+         * Check whether the player can play a given mimetype
+         *
+         * @see https://www.w3.org/TR/2011/WD-html5-20110113/video.html#dom-navigator-canplaytype
+         *
+         * @param {string} type
+         *        The mimetype to check
+         *
+         * @return {string}
+         *         'probably', 'maybe', or '' (empty string)
+         */
+        canPlayType(type) {
+            let can;
+
+            // Loop through each playback technology in the options order
+            for (let i = 0, j = this.options_.techOrder; i < j.length; i++) {
+                const techName = j[i];
+                let tech = Tech.getTech(techName);
+
+                // Support old behavior of techs being registered as components.
+                // Remove once that deprecated behavior is removed.
+                if (!tech) {
+                    tech = Component$1.getComponent(techName);
+                }
+
+                // Check if the current tech is defined before continuing
+                if (!tech) {
+                    log$1.error(`The "${techName}" tech is undefined. Skipped browser support check for that tech.`);
+                    continue;
+                }
+
+                // Check if the browser supports this technology
+                if (tech.isSupported()) {
+                    can = tech.canPlayType(type);
+                    if (can) {
+                        return can;
+                    }
+                }
+            }
+            return '';
+        }
+
+        /**
+         * Select source based on tech-order or source-order
+         * Uses source-order selection if `options.sourceOrder` is truthy. Otherwise,
+         * defaults to tech-order selection
+         *
+         * @param {Array} sources
+         *        The sources for a media asset
+         *
+         * @return {Object|boolean}
+         *         Object of source and tech order or false
+         */
+        selectSource(sources) {
+            // Get only the techs specified in `techOrder` that exist and are supported by the
+            // current platform
+            const techs = this.options_.techOrder.map(techName => {
+                return [techName, Tech.getTech(techName)];
+            }).filter(([techName, tech]) => {
+                // Check if the current tech is defined before continuing
+                if (tech) {
+                    // Check if the browser supports this technology
+                    return tech.isSupported();
+                }
+                log$1.error(`The "${techName}" tech is undefined. Skipped browser support check for that tech.`);
+                return false;
+            });
+
+            // Iterate over each `innerArray` element once per `outerArray` element and execute
+            // `tester` with both. If `tester` returns a non-falsy value, exit early and return
+            // that value.
+            const findFirstPassingTechSourcePair = function (outerArray, innerArray, tester) {
+                let found;
+                outerArray.some(outerChoice => {
+                    return innerArray.some(innerChoice => {
+                        found = tester(outerChoice, innerChoice);
+                        if (found) {
+                            return true;
+                        }
+                    });
+                });
+                return found;
+            };
+            let foundSourceAndTech;
+            const flip = fn => (a, b) => fn(b, a);
+            const finder = ([techName, tech], source) => {
+                if (tech.canPlaySource(source, this.options_[techName.toLowerCase()])) {
+                    return {
+                        source,
+                        tech: techName
+                    };
+                }
+            };
+
+            // Depending on the truthiness of `options.sourceOrder`, we swap the order of techs and sources
+            // to select from them based on their priority.
+            if (this.options_.sourceOrder) {
+                // Source-first ordering
+                foundSourceAndTech = findFirstPassingTechSourcePair(sources, techs, flip(finder));
+            } else {
+                // Tech-first ordering
+                foundSourceAndTech = findFirstPassingTechSourcePair(techs, sources, finder);
+            }
+            return foundSourceAndTech || false;
+        }
+
+        /**
+         * Executes source setting and getting logic
+         *
+         * @param {Tech~SourceObject|Tech~SourceObject[]|string} [source]
+         *        A SourceObject, an array of SourceObjects, or a string referencing
+         *        a URL to a media source. It is _highly recommended_ that an object
+         *        or array of objects is used here, so that source selection
+         *        algorithms can take the `type` into account.
+         *
+         *        If not provided, this method acts as a getter.
+         * @param {boolean} isRetry
+         *        Indicates whether this is being called internally as a result of a retry
+         *
+         * @return {string|undefined}
+         *         If the `source` argument is missing, returns the current source
+         *         URL. Otherwise, returns nothing/undefined.
+         */
+        handleSrc_(source, isRetry) {
+            // getter usage
+            if (typeof source === 'undefined') {
+                return this.cache_.src || '';
+            }
+
+            // Reset retry behavior for new source
+            if (this.resetRetryOnError_) {
+                this.resetRetryOnError_();
+            }
+
+            // filter out invalid sources and turn our source into
+            // an array of source objects
+            const sources = filterSource(source);
+
+            // if a source was passed in then it is invalid because
+            // it was filtered to a zero length Array. So we have to
+            // show an error
+            if (!sources.length) {
+                this.setTimeout(function () {
+                    this.error({
+                        code: 4,
+                        message: this.options_.notSupportedMessage
+                    });
+                }, 0);
+                return;
+            }
+
+            // initial sources
+            this.changingSrc_ = true;
+
+            // Only update the cached source list if we are not retrying a new source after error,
+            // since in that case we want to include the failed source(s) in the cache
+            if (!isRetry) {
+                this.cache_.sources = sources;
+            }
+            this.updateSourceCaches_(sources[0]);
+
+            // middlewareSource is the source after it has been changed by middleware
+            setSource(this, sources[0], (middlewareSource, mws) => {
+                this.middleware_ = mws;
+
+                // since sourceSet is async we have to update the cache again after we select a source since
+                // the source that is selected could be out of order from the cache update above this callback.
+                if (!isRetry) {
+                    this.cache_.sources = sources;
+                }
+                this.updateSourceCaches_(middlewareSource);
+                const err = this.src_(middlewareSource);
+                if (err) {
+                    if (sources.length > 1) {
+                        return this.handleSrc_(sources.slice(1));
+                    }
+                    this.changingSrc_ = false;
+
+                    // We need to wrap this in a timeout to give folks a chance to add error event handlers
+                    this.setTimeout(function () {
+                        this.error({
+                            code: 4,
+                            message: this.options_.notSupportedMessage
+                        });
+                    }, 0);
+
+                    // we could not find an appropriate tech, but let's still notify the delegate that this is it
+                    // this needs a better comment about why this is needed
+                    this.triggerReady();
+                    return;
+                }
+                setTech(mws, this.tech_);
+            });
+
+            // Try another available source if this one fails before playback.
+            if (sources.length > 1) {
+                const retry = () => {
+                    // Remove the error modal
+                    this.error(null);
+                    this.handleSrc_(sources.slice(1), true);
+                };
+                const stopListeningForErrors = () => {
+                    this.off('error', retry);
+                };
+                this.one('error', retry);
+                this.one('playing', stopListeningForErrors);
+                this.resetRetryOnError_ = () => {
+                    this.off('error', retry);
+                    this.off('playing', stopListeningForErrors);
+                };
+            }
+        }
+
+        /**
+         * Get or set the video source.
+         *
+         * @param {Tech~SourceObject|Tech~SourceObject[]|string} [source]
+         *        A SourceObject, an array of SourceObjects, or a string referencing
+         *        a URL to a media source. It is _highly recommended_ that an object
+         *        or array of objects is used here, so that source selection
+         *        algorithms can take the `type` into account.
+         *
+         *        If not provided, this method acts as a getter.
+         *
+         * @return {string|undefined}
+         *         If the `source` argument is missing, returns the current source
+         *         URL. Otherwise, returns nothing/undefined.
+         */
+        src(source) {
+            return this.handleSrc_(source, false);
+        }
+
+        /**
+         * Set the source object on the tech, returns a boolean that indicates whether
+         * there is a tech that can play the source or not
+         *
+         * @param {Tech~SourceObject} source
+         *        The source object to set on the Tech
+         *
+         * @return {boolean}
+         *         - True if there is no Tech to playback this source
+         *         - False otherwise
+         *
+         * @private
+         */
+        src_(source) {
+            const sourceTech = this.selectSource([source]);
+            if (!sourceTech) {
+                return true;
+            }
+            if (!titleCaseEquals(sourceTech.tech, this.techName_)) {
+                this.changingSrc_ = true;
+                // load this technology with the chosen source
+                this.loadTech_(sourceTech.tech, sourceTech.source);
+                this.tech_.ready(() => {
+                    this.changingSrc_ = false;
+                });
+                return false;
+            }
+
+            // wait until the tech is ready to set the source
+            // and set it synchronously if possible (#2326)
+            this.ready(function () {
+                // The setSource tech method was added with source handlers
+                // so older techs won't support it
+                // We need to check the direct prototype for the case where subclasses
+                // of the tech do not support source handlers
+                if (this.tech_.constructor.prototype.hasOwnProperty('setSource')) {
+                    this.techCall_('setSource', source);
+                } else {
+                    this.techCall_('src', source.src);
+                }
+                this.changingSrc_ = false;
+            }, true);
+            return false;
+        }
+
+        /**
+         * Begin loading the src data.
+         */
+        load() {
+            this.techCall_('load');
+        }
+
+        /**
+         * Reset the player. Loads the first tech in the techOrder,
+         * removes all the text tracks in the existing `tech`,
+         * and calls `reset` on the `tech`.
+         */
+        reset() {
+            if (this.paused()) {
+                this.doReset_();
+            } else {
+                const playPromise = this.play();
+                silencePromise(playPromise.then(() => this.doReset_()));
+            }
+        }
+        doReset_() {
+            if (this.tech_) {
+                this.tech_.clearTracks('text');
+            }
+            this.resetCache_();
+            this.poster('');
+            this.loadTech_(this.options_.techOrder[0], null);
+            this.techCall_('reset');
+            this.resetControlBarUI_();
+            if (isEvented(this)) {
+                this.trigger('playerreset');
+            }
+        }
+
+        /**
+         * Reset Control Bar's UI by calling sub-methods that reset
+         * all of Control Bar's components
+         */
+        resetControlBarUI_() {
+            this.resetProgressBar_();
+            this.resetPlaybackRate_();
+            this.resetVolumeBar_();
+        }
+
+        /**
+         * Reset tech's progress so progress bar is reset in the UI
+         */
+        resetProgressBar_() {
+            this.currentTime(0);
+            const {
+                currentTimeDisplay,
+                durationDisplay,
+                progressControl,
+                remainingTimeDisplay
+            } = this.controlBar || {};
+            const {
+                seekBar
+            } = progressControl || {};
+            if (currentTimeDisplay) {
+                currentTimeDisplay.updateContent();
+            }
+            if (durationDisplay) {
+                durationDisplay.updateContent();
+            }
+            if (remainingTimeDisplay) {
+                remainingTimeDisplay.updateContent();
+            }
+            if (seekBar) {
+                seekBar.update();
+                if (seekBar.loadProgressBar) {
+                    seekBar.loadProgressBar.update();
+                }
+            }
+        }
+
+        /**
+         * Reset Playback ratio
+         */
+        resetPlaybackRate_() {
+            this.playbackRate(this.defaultPlaybackRate());
+            this.handleTechRateChange_();
+        }
+
+        /**
+         * Reset Volume bar
+         */
+        resetVolumeBar_() {
+            this.volume(1.0);
+            this.trigger('volumechange');
+        }
+
+        /**
+         * Returns all of the current source objects.
+         *
+         * @return {Tech~SourceObject[]}
+         *         The current source objects
+         */
+        currentSources() {
+            const source = this.currentSource();
+            const sources = [];
+
+            // assume `{}` or `{ src }`
+            if (Object.keys(source).length !== 0) {
+                sources.push(source);
+            }
+            return this.cache_.sources || sources;
+        }
+
+        /**
+         * Returns the current source object.
+         *
+         * @return {Tech~SourceObject}
+         *         The current source object
+         */
+        currentSource() {
+            return this.cache_.source || {};
+        }
+
+        /**
+         * Returns the fully qualified URL of the current source value e.g. http://mysite.com/video.mp4
+         * Can be used in conjunction with `currentType` to assist in rebuilding the current source object.
+         *
+         * @return {string}
+         *         The current source
+         */
+        currentSrc() {
+            return this.currentSource() && this.currentSource().src || '';
+        }
+
+        /**
+         * Get the current source type e.g. video/mp4
+         * This can allow you rebuild the current source object so that you could load the same
+         * source and tech later
+         *
+         * @return {string}
+         *         The source MIME type
+         */
+        currentType() {
+            return this.currentSource() && this.currentSource().type || '';
+        }
+
+        /**
+         * Get or set the preload attribute
+         *
+         * @param {boolean} [value]
+         *        - true means that we should preload
+         *        - false means that we should not preload
+         *
+         * @return {string}
+         *         The preload attribute value when getting
+         */
+        preload(value) {
+            if (value !== undefined) {
+                this.techCall_('setPreload', value);
+                this.options_.preload = value;
+                return;
+            }
+            return this.techGet_('preload');
+        }
+
+        /**
+         * Get or set the autoplay option. When this is a boolean it will
+         * modify the attribute on the tech. When this is a string the attribute on
+         * the tech will be removed and `Player` will handle autoplay on loadstarts.
+         *
+         * @param {boolean|string} [value]
+         *        - true: autoplay using the browser behavior
+         *        - false: do not autoplay
+         *        - 'play': call play() on every loadstart
+         *        - 'muted': call muted() then play() on every loadstart
+         *        - 'any': call play() on every loadstart. if that fails call muted() then play().
+         *        - *: values other than those listed here will be set `autoplay` to true
+         *
+         * @return {boolean|string}
+         *         The current value of autoplay when getting
+         */
+        autoplay(value) {
+            // getter usage
+            if (value === undefined) {
+                return this.options_.autoplay || false;
+            }
+            let techAutoplay;
+
+            // if the value is a valid string set it to that, or normalize `true` to 'play', if need be
+            if (typeof value === 'string' && /(any|play|muted)/.test(value) || value === true && this.options_.normalizeAutoplay) {
+                this.options_.autoplay = value;
+                this.manualAutoplay_(typeof value === 'string' ? value : 'play');
+                techAutoplay = false;
+
+                // any falsy value sets autoplay to false in the browser,
+                // lets do the same
+            } else if (!value) {
+                this.options_.autoplay = false;
+
+                // any other value (ie truthy) sets autoplay to true
+            } else {
+                this.options_.autoplay = true;
+            }
+            techAutoplay = typeof techAutoplay === 'undefined' ? this.options_.autoplay : techAutoplay;
+
+            // if we don't have a tech then we do not queue up
+            // a setAutoplay call on tech ready. We do this because the
+            // autoplay option will be passed in the constructor and we
+            // do not need to set it twice
+            if (this.tech_) {
+                this.techCall_('setAutoplay', techAutoplay);
+            }
+        }
+
+        /**
+         * Set or unset the playsinline attribute.
+         * Playsinline tells the browser that non-fullscreen playback is preferred.
+         *
+         * @param {boolean} [value]
+         *        - true means that we should try to play inline by default
+         *        - false means that we should use the browser's default playback mode,
+         *          which in most cases is inline. iOS Safari is a notable exception
+         *          and plays fullscreen by default.
+         *
+         * @return {string|Player}
+         *         - the current value of playsinline
+         *         - the player when setting
+         *
+         * @see [Spec]{@link https://html.spec.whatwg.org/#attr-video-playsinline}
+         */
+        playsinline(value) {
+            if (value !== undefined) {
+                this.techCall_('setPlaysinline', value);
+                this.options_.playsinline = value;
+                return this;
+            }
+            return this.techGet_('playsinline');
+        }
+
+        /**
+         * Get or set the loop attribute on the video element.
+         *
+         * @param {boolean} [value]
+         *        - true means that we should loop the video
+         *        - false means that we should not loop the video
+         *
+         * @return {boolean}
+         *         The current value of loop when getting
+         */
+        loop(value) {
+            if (value !== undefined) {
+                this.techCall_('setLoop', value);
+                this.options_.loop = value;
+                return;
+            }
+            return this.techGet_('loop');
+        }
+
+        /**
+         * Get or set the poster image source url
+         *
+         * @fires Player#posterchange
+         *
+         * @param {string} [src]
+         *        Poster image source URL
+         *
+         * @return {string}
+         *         The current value of poster when getting
+         */
+        poster(src) {
+            if (src === undefined) {
+                return this.poster_;
+            }
+
+            // The correct way to remove a poster is to set as an empty string
+            // other falsey values will throw errors
+            if (!src) {
+                src = '';
+            }
+            if (src === this.poster_) {
+                return;
+            }
+
+            // update the internal poster variable
+            this.poster_ = src;
+
+            // update the tech's poster
+            this.techCall_('setPoster', src);
+            this.isPosterFromTech_ = false;
+
+            // alert components that the poster has been set
+            /**
+             * This event fires when the poster image is changed on the player.
+             *
+             * @event Player#posterchange
+             * @type {Event}
+             */
+            this.trigger('posterchange');
+        }
+
+        /**
+         * Some techs (e.g. YouTube) can provide a poster source in an
+         * asynchronous way. We want the poster component to use this
+         * poster source so that it covers up the tech's controls.
+         * (YouTube's play button). However we only want to use this
+         * source if the player user hasn't set a poster through
+         * the normal APIs.
+         *
+         * @fires Player#posterchange
+         * @listens Tech#posterchange
+         * @private
+         */
+        handleTechPosterChange_() {
+            if ((!this.poster_ || this.options_.techCanOverridePoster) && this.tech_ && this.tech_.poster) {
+                const newPoster = this.tech_.poster() || '';
+                if (newPoster !== this.poster_) {
+                    this.poster_ = newPoster;
+                    this.isPosterFromTech_ = true;
+
+                    // Let components know the poster has changed
+                    this.trigger('posterchange');
+                }
+            }
+        }
+
+        /**
+         * Get or set whether or not the controls are showing.
+         *
+         * @fires Player#controlsenabled
+         *
+         * @param {boolean} [bool]
+         *        - true to turn controls on
+         *        - false to turn controls off
+         *
+         * @return {boolean}
+         *         The current value of controls when getting
+         */
+        controls(bool) {
+            if (bool === undefined) {
+                return !!this.controls_;
+            }
+            bool = !!bool;
+
+            // Don't trigger a change event unless it actually changed
+            if (this.controls_ === bool) {
+                return;
+            }
+            this.controls_ = bool;
+            if (this.usingNativeControls()) {
+                this.techCall_('setControls', bool);
+            }
+            if (this.controls_) {
+                this.removeClass('vjs-controls-disabled');
+                this.addClass('vjs-controls-enabled');
+                /**
+                 * @event Player#controlsenabled
+                 * @type {Event}
+                 */
+                this.trigger('controlsenabled');
+                if (!this.usingNativeControls()) {
+                    this.addTechControlsListeners_();
+                }
+            } else {
+                this.removeClass('vjs-controls-enabled');
+                this.addClass('vjs-controls-disabled');
+                /**
+                 * @event Player#controlsdisabled
+                 * @type {Event}
+                 */
+                this.trigger('controlsdisabled');
+                if (!this.usingNativeControls()) {
+                    this.removeTechControlsListeners_();
+                }
+            }
+        }
+
+        /**
+         * Toggle native controls on/off. Native controls are the controls built into
+         * devices (e.g. default iPhone controls) or other techs
+         * (e.g. Vimeo Controls)
+         * **This should only be set by the current tech, because only the tech knows
+         * if it can support native controls**
+         *
+         * @fires Player#usingnativecontrols
+         * @fires Player#usingcustomcontrols
+         *
+         * @param {boolean} [bool]
+         *        - true to turn native controls on
+         *        - false to turn native controls off
+         *
+         * @return {boolean}
+         *         The current value of native controls when getting
+         */
+        usingNativeControls(bool) {
+            if (bool === undefined) {
+                return !!this.usingNativeControls_;
+            }
+            bool = !!bool;
+
+            // Don't trigger a change event unless it actually changed
+            if (this.usingNativeControls_ === bool) {
+                return;
+            }
+            this.usingNativeControls_ = bool;
+            if (this.usingNativeControls_) {
+                this.addClass('vjs-using-native-controls');
+
+                /**
+                 * player is using the native device controls
+                 *
+                 * @event Player#usingnativecontrols
+                 * @type {Event}
+                 */
+                this.trigger('usingnativecontrols');
+            } else {
+                this.removeClass('vjs-using-native-controls');
+
+                /**
+                 * player is using the custom HTML controls
+                 *
+                 * @event Player#usingcustomcontrols
+                 * @type {Event}
+                 */
+                this.trigger('usingcustomcontrols');
+            }
+        }
+
+        /**
+         * Set or get the current MediaError
+         *
+         * @fires Player#error
+         *
+         * @param  {MediaError|string|number} [err]
+         *         A MediaError or a string/number to be turned
+         *         into a MediaError
+         *
+         * @return {MediaError|null}
+         *         The current MediaError when getting (or null)
+         */
+        error(err) {
+            if (err === undefined) {
+                return this.error_ || null;
+            }
+
+            // allow hooks to modify error object
+            hooks('beforeerror').forEach(hookFunction => {
+                const newErr = hookFunction(this, err);
+                if (!(isObject$1(newErr) && !Array.isArray(newErr) || typeof newErr === 'string' || typeof newErr === 'number' || newErr === null)) {
+                    this.log.error('please return a value that MediaError expects in beforeerror hooks');
+                    return;
+                }
+                err = newErr;
+            });
+
+            // Suppress the first error message for no compatible source until
+            // user interaction
+            if (this.options_.suppressNotSupportedError && err && err.code === 4) {
+                const triggerSuppressedError = function () {
+                    this.error(err);
+                };
+                this.options_.suppressNotSupportedError = false;
+                this.any(['click', 'touchstart'], triggerSuppressedError);
+                this.one('loadstart', function () {
+                    this.off(['click', 'touchstart'], triggerSuppressedError);
+                });
+                return;
+            }
+
+            // restoring to default
+            if (err === null) {
+                this.error_ = err;
+                this.removeClass('vjs-error');
+                if (this.errorDisplay) {
+                    this.errorDisplay.close();
+                }
+                return;
+            }
+            this.error_ = new MediaError(err);
+
+            // add the vjs-error classname to the player
+            this.addClass('vjs-error');
+
+            // log the name of the error type and any message
+            // IE11 logs "[object object]" and required you to expand message to see error object
+            log$1.error(`(CODE:${this.error_.code} ${MediaError.errorTypes[this.error_.code]})`, this.error_.message, this.error_);
+
+            /**
+             * @event Player#error
+             * @type {Event}
+             */
+            this.trigger('error');
+
+            // notify hooks of the per player error
+            hooks('error').forEach(hookFunction => hookFunction(this, this.error_));
+            return;
+        }
+
+        /**
+         * Report user activity
+         *
+         * @param {Object} event
+         *        Event object
+         */
+        reportUserActivity(event) {
+            this.userActivity_ = true;
+        }
+
+        /**
+         * Get/set if user is active
+         *
+         * @fires Player#useractive
+         * @fires Player#userinactive
+         *
+         * @param {boolean} [bool]
+         *        - true if the user is active
+         *        - false if the user is inactive
+         *
+         * @return {boolean}
+         *         The current value of userActive when getting
+         */
+        userActive(bool) {
+            if (bool === undefined) {
+                return this.userActive_;
+            }
+            bool = !!bool;
+            if (bool === this.userActive_) {
+                return;
+            }
+            this.userActive_ = bool;
+            if (this.userActive_) {
+                this.userActivity_ = true;
+                this.removeClass('vjs-user-inactive');
+                this.addClass('vjs-user-active');
+                /**
+                 * @event Player#useractive
+                 * @type {Event}
+                 */
+                this.trigger('useractive');
+                return;
+            }
+
+            // Chrome/Safari/IE have bugs where when you change the cursor it can
+            // trigger a mousemove event. This causes an issue when you're hiding
+            // the cursor when the user is inactive, and a mousemove signals user
+            // activity. Making it impossible to go into inactive mode. Specifically
+            // this happens in fullscreen when we really need to hide the cursor.
+            //
+            // When this gets resolved in ALL browsers it can be removed
+            // https://code.google.com/p/chromium/issues/detail?id=103041
+            if (this.tech_) {
+                this.tech_.one('mousemove', function (e) {
+                    e.stopPropagation();
+                    e.preventDefault();
+                });
+            }
+            this.userActivity_ = false;
+            this.removeClass('vjs-user-active');
+            this.addClass('vjs-user-inactive');
+            /**
+             * @event Player#userinactive
+             * @type {Event}
+             */
+            this.trigger('userinactive');
+        }
+
+        /**
+         * Listen for user activity based on timeout value
+         *
+         * @private
+         */
+        listenForUserActivity_() {
+            let mouseInProgress;
+            let lastMoveX;
+            let lastMoveY;
+            const handleActivity = bind_(this, this.reportUserActivity);
+            const handleMouseMove = function (e) {
+                // #1068 - Prevent mousemove spamming
+                // Chrome Bug: https://code.google.com/p/chromium/issues/detail?id=366970
+                if (e.screenX !== lastMoveX || e.screenY !== lastMoveY) {
+                    lastMoveX = e.screenX;
+                    lastMoveY = e.screenY;
+                    handleActivity();
+                }
+            };
+            const handleMouseDown = function () {
+                handleActivity();
+                // For as long as the they are touching the device or have their mouse down,
+                // we consider them active even if they're not moving their finger or mouse.
+                // So we want to continue to update that they are active
+                this.clearInterval(mouseInProgress);
+                // Setting userActivity=true now and setting the interval to the same time
+                // as the activityCheck interval (250) should ensure we never miss the
+                // next activityCheck
+                mouseInProgress = this.setInterval(handleActivity, 250);
+            };
+            const handleMouseUpAndMouseLeave = function (event) {
+                handleActivity();
+                // Stop the interval that maintains activity if the mouse/touch is down
+                this.clearInterval(mouseInProgress);
+            };
+
+            // Any mouse movement will be considered user activity
+            this.on('mousedown', handleMouseDown);
+            this.on('mousemove', handleMouseMove);
+            this.on('mouseup', handleMouseUpAndMouseLeave);
+            this.on('mouseleave', handleMouseUpAndMouseLeave);
+            const controlBar = this.getChild('controlBar');
+
+            // Fixes bug on Android & iOS where when tapping progressBar (when control bar is displayed)
+            // controlBar would no longer be hidden by default timeout.
+            if (controlBar && !IS_IOS && !IS_ANDROID) {
+                controlBar.on('mouseenter', function (event) {
+                    if (this.player().options_.inactivityTimeout !== 0) {
+                        this.player().cache_.inactivityTimeout = this.player().options_.inactivityTimeout;
+                    }
+                    this.player().options_.inactivityTimeout = 0;
+                });
+                controlBar.on('mouseleave', function (event) {
+                    this.player().options_.inactivityTimeout = this.player().cache_.inactivityTimeout;
+                });
+            }
+
+            // Listen for keyboard navigation
+            // Shouldn't need to use inProgress interval because of key repeat
+            this.on('keydown', handleActivity);
+            this.on('keyup', handleActivity);
+
+            // Run an interval every 250 milliseconds instead of stuffing everything into
+            // the mousemove/touchmove function itself, to prevent performance degradation.
+            // `this.reportUserActivity` simply sets this.userActivity_ to true, which
+            // then gets picked up by this loop
+            // http://ejohn.org/blog/learning-from-twitter/
+            let inactivityTimeout;
+            this.setInterval(function () {
+                // Check to see if mouse/touch activity has happened
+                if (!this.userActivity_) {
+                    return;
+                }
+
+                // Reset the activity tracker
+                this.userActivity_ = false;
+
+                // If the user state was inactive, set the state to active
+                this.userActive(true);
+
+                // Clear any existing inactivity timeout to start the timer over
+                this.clearTimeout(inactivityTimeout);
+                const timeout = this.options_.inactivityTimeout;
+                if (timeout <= 0) {
+                    return;
+                }
+
+                // In <timeout> milliseconds, if no more activity has occurred the
+                // user will be considered inactive
+                inactivityTimeout = this.setTimeout(function () {
+                    // Protect against the case where the inactivityTimeout can trigger just
+                    // before the next user activity is picked up by the activity check loop
+                    // causing a flicker
+                    if (!this.userActivity_) {
+                        this.userActive(false);
+                    }
+                }, timeout);
+            }, 250);
+        }
+
+        /**
+         * Gets or sets the current playback rate. A playback rate of
+         * 1.0 represents normal speed and 0.5 would indicate half-speed
+         * playback, for instance.
+         *
+         * @see https://html.spec.whatwg.org/multipage/embedded-content.html#dom-media-playbackrate
+         *
+         * @param {number} [rate]
+         *       New playback rate to set.
+         *
+         * @return {number}
+         *         The current playback rate when getting or 1.0
+         */
+        playbackRate(rate) {
+            if (rate !== undefined) {
+                // NOTE: this.cache_.lastPlaybackRate is set from the tech handler
+                // that is registered above
+                this.techCall_('setPlaybackRate', rate);
+                return;
+            }
+            if (this.tech_ && this.tech_.featuresPlaybackRate) {
+                return this.cache_.lastPlaybackRate || this.techGet_('playbackRate');
+            }
+            return 1.0;
+        }
+
+        /**
+         * Gets or sets the current default playback rate. A default playback rate of
+         * 1.0 represents normal speed and 0.5 would indicate half-speed playback, for instance.
+         * defaultPlaybackRate will only represent what the initial playbackRate of a video was, not
+         * not the current playbackRate.
+         *
+         * @see https://html.spec.whatwg.org/multipage/embedded-content.html#dom-media-defaultplaybackrate
+         *
+         * @param {number} [rate]
+         *       New default playback rate to set.
+         *
+         * @return {number|Player}
+         *         - The default playback rate when getting or 1.0
+         *         - the player when setting
+         */
+        defaultPlaybackRate(rate) {
+            if (rate !== undefined) {
+                return this.techCall_('setDefaultPlaybackRate', rate);
+            }
+            if (this.tech_ && this.tech_.featuresPlaybackRate) {
+                return this.techGet_('defaultPlaybackRate');
+            }
+            return 1.0;
+        }
+
+        /**
+         * Gets or sets the audio flag
+         *
+         * @param {boolean} bool
+         *        - true signals that this is an audio player
+         *        - false signals that this is not an audio player
+         *
+         * @return {boolean}
+         *         The current value of isAudio when getting
+         */
+        isAudio(bool) {
+            if (bool !== undefined) {
+                this.isAudio_ = !!bool;
+                return;
+            }
+            return !!this.isAudio_;
+        }
+        enableAudioOnlyUI_() {
+            // Update styling immediately to show the control bar so we can get its height
+            this.addClass('vjs-audio-only-mode');
+            const playerChildren = this.children();
+            const controlBar = this.getChild('ControlBar');
+            const controlBarHeight = controlBar && controlBar.currentHeight();
+
+            // Hide all player components except the control bar. Control bar components
+            // needed only for video are hidden with CSS
+            playerChildren.forEach(child => {
+                if (child === controlBar) {
+                    return;
+                }
+                if (child.el_ && !child.hasClass('vjs-hidden')) {
+                    child.hide();
+                    this.audioOnlyCache_.hiddenChildren.push(child);
+                }
+            });
+            this.audioOnlyCache_.playerHeight = this.currentHeight();
+
+            // Set the player height the same as the control bar
+            this.height(controlBarHeight);
+            this.trigger('audioonlymodechange');
+        }
+        disableAudioOnlyUI_() {
+            this.removeClass('vjs-audio-only-mode');
+
+            // Show player components that were previously hidden
+            this.audioOnlyCache_.hiddenChildren.forEach(child => child.show());
+
+            // Reset player height
+            this.height(this.audioOnlyCache_.playerHeight);
+            this.trigger('audioonlymodechange');
+        }
+
+        /**
+         * Get the current audioOnlyMode state or set audioOnlyMode to true or false.
+         *
+         * Setting this to `true` will hide all player components except the control bar,
+         * as well as control bar components needed only for video.
+         *
+         * @param {boolean} [value]
+         *         The value to set audioOnlyMode to.
+         *
+         * @return {Promise|boolean}
+         *        A Promise is returned when setting the state, and a boolean when getting
+         *        the present state
+         */
+        audioOnlyMode(value) {
+            if (typeof value !== 'boolean' || value === this.audioOnlyMode_) {
+                return this.audioOnlyMode_;
+            }
+            this.audioOnlyMode_ = value;
+
+            // Enable Audio Only Mode
+            if (value) {
+                const exitPromises = [];
+
+                // Fullscreen and PiP are not supported in audioOnlyMode, so exit if we need to.
+                if (this.isInPictureInPicture()) {
+                    exitPromises.push(this.exitPictureInPicture());
+                }
+                if (this.isFullscreen()) {
+                    exitPromises.push(this.exitFullscreen());
+                }
+                if (this.audioPosterMode()) {
+                    exitPromises.push(this.audioPosterMode(false));
+                }
+                return Promise.all(exitPromises).then(() => this.enableAudioOnlyUI_());
+            }
+
+            // Disable Audio Only Mode
+            return Promise.resolve().then(() => this.disableAudioOnlyUI_());
+        }
+        enablePosterModeUI_() {
+            // Hide the video element and show the poster image to enable posterModeUI
+            const tech = this.tech_ && this.tech_;
+            tech.hide();
+            this.addClass('vjs-audio-poster-mode');
+            this.trigger('audiopostermodechange');
+        }
+        disablePosterModeUI_() {
+            // Show the video element and hide the poster image to disable posterModeUI
+            const tech = this.tech_ && this.tech_;
+            tech.show();
+            this.removeClass('vjs-audio-poster-mode');
+            this.trigger('audiopostermodechange');
+        }
+
+        /**
+         * Get the current audioPosterMode state or set audioPosterMode to true or false
+         *
+         * @param {boolean} [value]
+         *         The value to set audioPosterMode to.
+         *
+         * @return {Promise|boolean}
+         *         A Promise is returned when setting the state, and a boolean when getting
+         *        the present state
+         */
+        audioPosterMode(value) {
+            if (typeof value !== 'boolean' || value === this.audioPosterMode_) {
+                return this.audioPosterMode_;
+            }
+            this.audioPosterMode_ = value;
+            if (value) {
+                if (this.audioOnlyMode()) {
+                    const audioOnlyModePromise = this.audioOnlyMode(false);
+                    return audioOnlyModePromise.then(() => {
+                        // enable audio poster mode after audio only mode is disabled
+                        this.enablePosterModeUI_();
+                    });
+                }
+                return Promise.resolve().then(() => {
+                    // enable audio poster mode
+                    this.enablePosterModeUI_();
+                });
+            }
+            return Promise.resolve().then(() => {
+                // disable audio poster mode
+                this.disablePosterModeUI_();
+            });
+        }
+
+        /**
+         * A helper method for adding a {@link TextTrack} to our
+         * {@link TextTrackList}.
+         *
+         * In addition to the W3C settings we allow adding additional info through options.
+         *
+         * @see http://www.w3.org/html/wg/drafts/html/master/embedded-content-0.html#dom-media-addtexttrack
+         *
+         * @param {string} [kind]
+         *        the kind of TextTrack you are adding
+         *
+         * @param {string} [label]
+         *        the label to give the TextTrack label
+         *
+         * @param {string} [language]
+         *        the language to set on the TextTrack
+         *
+         * @return {TextTrack|undefined}
+         *         the TextTrack that was added or undefined
+         *         if there is no tech
+         */
+        addTextTrack(kind, label, language) {
+            if (this.tech_) {
+                return this.tech_.addTextTrack(kind, label, language);
+            }
+        }
+
+        /**
+         * Create a remote {@link TextTrack} and an {@link HTMLTrackElement}.
+         *
+         * @param {Object} options
+         *        Options to pass to {@link HTMLTrackElement} during creation. See
+         *        {@link HTMLTrackElement} for object properties that you should use.
+         *
+         * @param {boolean} [manualCleanup=false] if set to true, the TextTrack will not be removed
+         *                                        from the TextTrackList and HtmlTrackElementList
+         *                                        after a source change
+         *
+         * @return { import('./tracks/html-track-element').default }
+         *         the HTMLTrackElement that was created and added
+         *         to the HtmlTrackElementList and the remote
+         *         TextTrackList
+         *
+         */
+        addRemoteTextTrack(options, manualCleanup) {
+            if (this.tech_) {
+                return this.tech_.addRemoteTextTrack(options, manualCleanup);
+            }
+        }
+
+        /**
+         * Remove a remote {@link TextTrack} from the respective
+         * {@link TextTrackList} and {@link HtmlTrackElementList}.
+         *
+         * @param {Object} track
+         *        Remote {@link TextTrack} to remove
+         *
+         * @return {undefined}
+         *         does not return anything
+         */
+        removeRemoteTextTrack(obj = {}) {
+            let {
+                track
+            } = obj;
+            if (!track) {
+                track = obj;
+            }
+
+            // destructure the input into an object with a track argument, defaulting to arguments[0]
+            // default the whole argument to an empty object if nothing was passed in
+
+            if (this.tech_) {
+                return this.tech_.removeRemoteTextTrack(track);
+            }
+        }
+
+        /**
+         * Gets available media playback quality metrics as specified by the W3C's Media
+         * Playback Quality API.
+         *
+         * @see [Spec]{@link https://wicg.github.io/media-playback-quality}
+         *
+         * @return {Object|undefined}
+         *         An object with supported media playback quality metrics or undefined if there
+         *         is no tech or the tech does not support it.
+         */
+        getVideoPlaybackQuality() {
+            return this.techGet_('getVideoPlaybackQuality');
+        }
+
+        /**
+         * Get video width
+         *
+         * @return {number}
+         *         current video width
+         */
+        videoWidth() {
+            return this.tech_ && this.tech_.videoWidth && this.tech_.videoWidth() || 0;
+        }
+
+        /**
+         * Get video height
+         *
+         * @return {number}
+         *         current video height
+         */
+        videoHeight() {
+            return this.tech_ && this.tech_.videoHeight && this.tech_.videoHeight() || 0;
+        }
+
+        /**
+         * The player's language code.
+         *
+         * Changing the language will trigger
+         * [languagechange]{@link Player#event:languagechange}
+         * which Components can use to update control text.
+         * ClickableComponent will update its control text by default on
+         * [languagechange]{@link Player#event:languagechange}.
+         *
+         * @fires Player#languagechange
+         *
+         * @param {string} [code]
+         *        the language code to set the player to
+         *
+         * @return {string}
+         *         The current language code when getting
+         */
+        language(code) {
+            if (code === undefined) {
+                return this.language_;
+            }
+            if (this.language_ !== String(code).toLowerCase()) {
+                this.language_ = String(code).toLowerCase();
+
+                // during first init, it's possible some things won't be evented
+                if (isEvented(this)) {
+                    /**
+                     * fires when the player language change
+                     *
+                     * @event Player#languagechange
+                     * @type {Event}
+                     */
+                    this.trigger('languagechange');
+                }
+            }
+        }
+
+        /**
+         * Get the player's language dictionary
+         * Merge every time, because a newly added plugin might call videojs.addLanguage() at any time
+         * Languages specified directly in the player options have precedence
+         *
+         * @return {Array}
+         *         An array of of supported languages
+         */
+        languages() {
+            return merge$2(Player.prototype.options_.languages, this.languages_);
+        }
+
+        /**
+         * returns a JavaScript object representing the current track
+         * information. **DOES not return it as JSON**
+         *
+         * @return {Object}
+         *         Object representing the current of track info
+         */
+        toJSON() {
+            const options = merge$2(this.options_);
+            const tracks = options.tracks;
+            options.tracks = [];
+            for (let i = 0; i < tracks.length; i++) {
+                let track = tracks[i];
+
+                // deep merge tracks and null out player so no circular references
+                track = merge$2(track);
+                track.player = undefined;
+                options.tracks[i] = track;
+            }
+            return options;
+        }
+
+        /**
+         * Creates a simple modal dialog (an instance of the {@link ModalDialog}
+         * component) that immediately overlays the player with arbitrary
+         * content and removes itself when closed.
+         *
+         * @param {string|Function|Element|Array|null} content
+         *        Same as {@link ModalDialog#content}'s param of the same name.
+         *        The most straight-forward usage is to provide a string or DOM
+         *        element.
+         *
+         * @param {Object} [options]
+         *        Extra options which will be passed on to the {@link ModalDialog}.
+         *
+         * @return {ModalDialog}
+         *         the {@link ModalDialog} that was created
+         */
+        createModal(content, options) {
+            options = options || {};
+            options.content = content || '';
+            const modal = new ModalDialog(this, options);
+            this.addChild(modal);
+            modal.on('dispose', () => {
+                this.removeChild(modal);
+            });
+            modal.open();
+            return modal;
+        }
+
+        /**
+         * Change breakpoint classes when the player resizes.
+         *
+         * @private
+         */
+        updateCurrentBreakpoint_() {
+            if (!this.responsive()) {
+                return;
+            }
+            const currentBreakpoint = this.currentBreakpoint();
+            const currentWidth = this.currentWidth();
+            for (let i = 0; i < BREAKPOINT_ORDER.length; i++) {
+                const candidateBreakpoint = BREAKPOINT_ORDER[i];
+                const maxWidth = this.breakpoints_[candidateBreakpoint];
+                if (currentWidth <= maxWidth) {
+                    // The current breakpoint did not change, nothing to do.
+                    if (currentBreakpoint === candidateBreakpoint) {
+                        return;
+                    }
+
+                    // Only remove a class if there is a current breakpoint.
+                    if (currentBreakpoint) {
+                        this.removeClass(BREAKPOINT_CLASSES[currentBreakpoint]);
+                    }
+                    this.addClass(BREAKPOINT_CLASSES[candidateBreakpoint]);
+                    this.breakpoint_ = candidateBreakpoint;
+                    break;
+                }
+            }
+        }
+
+        /**
+         * Removes the current breakpoint.
+         *
+         * @private
+         */
+        removeCurrentBreakpoint_() {
+            const className = this.currentBreakpointClass();
+            this.breakpoint_ = '';
+            if (className) {
+                this.removeClass(className);
+            }
+        }
+
+        /**
+         * Get or set breakpoints on the player.
+         *
+         * Calling this method with an object or `true` will remove any previous
+         * custom breakpoints and start from the defaults again.
+         *
+         * @param  {Object|boolean} [breakpoints]
+         *         If an object is given, it can be used to provide custom
+         *         breakpoints. If `true` is given, will set default breakpoints.
+         *         If this argument is not given, will simply return the current
+         *         breakpoints.
+         *
+         * @param  {number} [breakpoints.tiny]
+         *         The maximum width for the "vjs-layout-tiny" class.
+         *
+         * @param  {number} [breakpoints.xsmall]
+         *         The maximum width for the "vjs-layout-x-small" class.
+         *
+         * @param  {number} [breakpoints.small]
+         *         The maximum width for the "vjs-layout-small" class.
+         *
+         * @param  {number} [breakpoints.medium]
+         *         The maximum width for the "vjs-layout-medium" class.
+         *
+         * @param  {number} [breakpoints.large]
+         *         The maximum width for the "vjs-layout-large" class.
+         *
+         * @param  {number} [breakpoints.xlarge]
+         *         The maximum width for the "vjs-layout-x-large" class.
+         *
+         * @param  {number} [breakpoints.huge]
+         *         The maximum width for the "vjs-layout-huge" class.
+         *
+         * @return {Object}
+         *         An object mapping breakpoint names to maximum width values.
+         */
+        breakpoints(breakpoints) {
+            // Used as a getter.
+            if (breakpoints === undefined) {
+                return Object.assign(this.breakpoints_);
+            }
+            this.breakpoint_ = '';
+            this.breakpoints_ = Object.assign({}, DEFAULT_BREAKPOINTS, breakpoints);
+
+            // When breakpoint definitions change, we need to update the currently
+            // selected breakpoint.
+            this.updateCurrentBreakpoint_();
+
+            // Clone the breakpoints before returning.
+            return Object.assign(this.breakpoints_);
+        }
+
+        /**
+         * Get or set a flag indicating whether or not this player should adjust
+         * its UI based on its dimensions.
+         *
+         * @param  {boolean} value
+         *         Should be `true` if the player should adjust its UI based on its
+         *         dimensions; otherwise, should be `false`.
+         *
+         * @return {boolean}
+         *         Will be `true` if this player should adjust its UI based on its
+         *         dimensions; otherwise, will be `false`.
+         */
+        responsive(value) {
+            // Used as a getter.
+            if (value === undefined) {
+                return this.responsive_;
+            }
+            value = Boolean(value);
+            const current = this.responsive_;
+
+            // Nothing changed.
+            if (value === current) {
+                return;
+            }
+
+            // The value actually changed, set it.
+            this.responsive_ = value;
+
+            // Start listening for breakpoints and set the initial breakpoint if the
+            // player is now responsive.
+            if (value) {
+                this.on('playerresize', this.boundUpdateCurrentBreakpoint_);
+                this.updateCurrentBreakpoint_();
+
+                // Stop listening for breakpoints if the player is no longer responsive.
+            } else {
+                this.off('playerresize', this.boundUpdateCurrentBreakpoint_);
+                this.removeCurrentBreakpoint_();
+            }
+            return value;
+        }
+
+        /**
+         * Get current breakpoint name, if any.
+         *
+         * @return {string}
+         *         If there is currently a breakpoint set, returns a the key from the
+         *         breakpoints object matching it. Otherwise, returns an empty string.
+         */
+        currentBreakpoint() {
+            return this.breakpoint_;
+        }
+
+        /**
+         * Get the current breakpoint class name.
+         *
+         * @return {string}
+         *         The matching class name (e.g. `"vjs-layout-tiny"` or
+         *         `"vjs-layout-large"`) for the current breakpoint. Empty string if
+         *         there is no current breakpoint.
+         */
+        currentBreakpointClass() {
+            return BREAKPOINT_CLASSES[this.breakpoint_] || '';
+        }
+
+        /**
+         * An object that describes a single piece of media.
+         *
+         * Properties that are not part of this type description will be retained; so,
+         * this can be viewed as a generic metadata storage mechanism as well.
+         *
+         * @see      {@link https://wicg.github.io/mediasession/#the-mediametadata-interface}
+         * @typedef  {Object} Player~MediaObject
+         *
+         * @property {string} [album]
+         *           Unused, except if this object is passed to the `MediaSession`
+         *           API.
+         *
+         * @property {string} [artist]
+         *           Unused, except if this object is passed to the `MediaSession`
+         *           API.
+         *
+         * @property {Object[]} [artwork]
+         *           Unused, except if this object is passed to the `MediaSession`
+         *           API. If not specified, will be populated via the `poster`, if
+         *           available.
+         *
+         * @property {string} [poster]
+         *           URL to an image that will display before playback.
+         *
+         * @property {Tech~SourceObject|Tech~SourceObject[]|string} [src]
+         *           A single source object, an array of source objects, or a string
+         *           referencing a URL to a media source. It is _highly recommended_
+         *           that an object or array of objects is used here, so that source
+         *           selection algorithms can take the `type` into account.
+         *
+         * @property {string} [title]
+         *           Unused, except if this object is passed to the `MediaSession`
+         *           API.
+         *
+         * @property {Object[]} [textTracks]
+         *           An array of objects to be used to create text tracks, following
+         *           the {@link https://www.w3.org/TR/html50/embedded-content-0.html#the-track-element|native track element format}.
+         *           For ease of removal, these will be created as "remote" text
+         *           tracks and set to automatically clean up on source changes.
+         *
+         *           These objects may have properties like `src`, `kind`, `label`,
+         *           and `language`, see {@link Tech#createRemoteTextTrack}.
+         */
+
+        /**
+         * Populate the player using a {@link Player~MediaObject|MediaObject}.
+         *
+         * @param  {Player~MediaObject} media
+         *         A media object.
+         *
+         * @param  {Function} ready
+         *         A callback to be called when the player is ready.
+         */
+        loadMedia(media, ready) {
+            if (!media || typeof media !== 'object') {
+                return;
+            }
+            this.reset();
+
+            // Clone the media object so it cannot be mutated from outside.
+            this.cache_.media = merge$2(media);
+            const {
+                artist,
+                artwork,
+                description,
+                poster,
+                src,
+                textTracks,
+                title
+            } = this.cache_.media;
+
+            // If `artwork` is not given, create it using `poster`.
+            if (!artwork && poster) {
+                this.cache_.media.artwork = [{
+                    src: poster,
+                    type: getMimetype(poster)
+                }];
+            }
+            if (src) {
+                this.src(src);
+            }
+            if (poster) {
+                this.poster(poster);
+            }
+            if (Array.isArray(textTracks)) {
+                textTracks.forEach(tt => this.addRemoteTextTrack(tt, false));
+            }
+            if (this.titleBar) {
+                this.titleBar.update({
+                    title,
+                    description: description || artist || ''
+                });
+            }
+            this.ready(ready);
+        }
+
+        /**
+         * Get a clone of the current {@link Player~MediaObject} for this player.
+         *
+         * If the `loadMedia` method has not been used, will attempt to return a
+         * {@link Player~MediaObject} based on the current state of the player.
+         *
+         * @return {Player~MediaObject}
+         */
+        getMedia() {
+            if (!this.cache_.media) {
+                const poster = this.poster();
+                const src = this.currentSources();
+                const textTracks = Array.prototype.map.call(this.remoteTextTracks(), tt => ({
+                    kind: tt.kind,
+                    label: tt.label,
+                    language: tt.language,
+                    src: tt.src
+                }));
+                const media = {
+                    src,
+                    textTracks
+                };
+                if (poster) {
+                    media.poster = poster;
+                    media.artwork = [{
+                        src: media.poster,
+                        type: getMimetype(media.poster)
+                    }];
+                }
+                return media;
+            }
+            return merge$2(this.cache_.media);
+        }
+
+        /**
+         * Gets tag settings
+         *
+         * @param {Element} tag
+         *        The player tag
+         *
+         * @return {Object}
+         *         An object containing all of the settings
+         *         for a player tag
+         */
+        static getTagSettings(tag) {
+            const baseOptions = {
+                sources: [],
+                tracks: []
+            };
+            const tagOptions = getAttributes(tag);
+            const dataSetup = tagOptions['data-setup'];
+            if (hasClass(tag, 'vjs-fill')) {
+                tagOptions.fill = true;
+            }
+            if (hasClass(tag, 'vjs-fluid')) {
+                tagOptions.fluid = true;
+            }
+
+            // Check if data-setup attr exists.
+            if (dataSetup !== null) {
+                // Parse options JSON
+                // If empty string, make it a parsable json object.
+                const [err, data] = tuple(dataSetup || '{}');
+                if (err) {
+                    log$1.error(err);
+                }
+                Object.assign(tagOptions, data);
+            }
+            Object.assign(baseOptions, tagOptions);
+
+            // Get tag children settings
+            if (tag.hasChildNodes()) {
+                const children = tag.childNodes;
+                for (let i = 0, j = children.length; i < j; i++) {
+                    const child = children[i];
+                    // Change case needed: http://ejohn.org/blog/nodename-case-sensitivity/
+                    const childName = child.nodeName.toLowerCase();
+                    if (childName === 'source') {
+                        baseOptions.sources.push(getAttributes(child));
+                    } else if (childName === 'track') {
+                        baseOptions.tracks.push(getAttributes(child));
+                    }
+                }
+            }
+            return baseOptions;
+        }
+
+        /**
+         * Set debug mode to enable/disable logs at info level.
+         *
+         * @param {boolean} enabled
+         * @fires Player#debugon
+         * @fires Player#debugoff
+         */
+        debug(enabled) {
+            if (enabled === undefined) {
+                return this.debugEnabled_;
+            }
+            if (enabled) {
+                this.trigger('debugon');
+                this.previousLogLevel_ = this.log.level;
+                this.log.level('debug');
+                this.debugEnabled_ = true;
+            } else {
+                this.trigger('debugoff');
+                this.log.level(this.previousLogLevel_);
+                this.previousLogLevel_ = undefined;
+                this.debugEnabled_ = false;
+            }
+        }
+
+        /**
+         * Set or get current playback rates.
+         * Takes an array and updates the playback rates menu with the new items.
+         * Pass in an empty array to hide the menu.
+         * Values other than arrays are ignored.
+         *
+         * @fires Player#playbackrateschange
+         * @param {number[]} newRates
+         *                   The new rates that the playback rates menu should update to.
+         *                   An empty array will hide the menu
+         * @return {number[]} When used as a getter will return the current playback rates
+         */
+        playbackRates(newRates) {
+            if (newRates === undefined) {
+                return this.cache_.playbackRates;
+            }
+
+            // ignore any value that isn't an array
+            if (!Array.isArray(newRates)) {
+                return;
+            }
+
+            // ignore any arrays that don't only contain numbers
+            if (!newRates.every(rate => typeof rate === 'number')) {
+                return;
+            }
+            this.cache_.playbackRates = newRates;
+
+            /**
+             * fires when the playback rates in a player are changed
+             *
+             * @event Player#playbackrateschange
+             * @type {Event}
+             */
+            this.trigger('playbackrateschange');
+        }
     }
+
     /**
-     * Removes the current breakpoint.
+     * Get the {@link VideoTrackList}
      *
-     * @private
-     */
-    ;
-
-    _proto.removeCurrentBreakpoint_ = function removeCurrentBreakpoint_() {
-      var className = this.currentBreakpointClass();
-      this.breakpoint_ = '';
-
-      if (className) {
-        this.removeClass(className);
-      }
-    }
-    /**
-     * Get or set breakpoints on the player.
+     * @link https://html.spec.whatwg.org/multipage/embedded-content.html#videotracklist
      *
-     * Calling this method with an object or `true` will remove any previous
-     * custom breakpoints and start from the defaults again.
+     * @return {VideoTrackList}
+     *         the current video track list
      *
-     * @param  {Object|boolean} [breakpoints]
-     *         If an object is given, it can be used to provide custom
-     *         breakpoints. If `true` is given, will set default breakpoints.
-     *         If this argument is not given, will simply return the current
-     *         breakpoints.
-     *
-     * @param  {number} [breakpoints.tiny]
-     *         The maximum width for the "vjs-layout-tiny" class.
-     *
-     * @param  {number} [breakpoints.xsmall]
-     *         The maximum width for the "vjs-layout-x-small" class.
-     *
-     * @param  {number} [breakpoints.small]
-     *         The maximum width for the "vjs-layout-small" class.
-     *
-     * @param  {number} [breakpoints.medium]
-     *         The maximum width for the "vjs-layout-medium" class.
-     *
-     * @param  {number} [breakpoints.large]
-     *         The maximum width for the "vjs-layout-large" class.
-     *
-     * @param  {number} [breakpoints.xlarge]
-     *         The maximum width for the "vjs-layout-x-large" class.
-     *
-     * @param  {number} [breakpoints.huge]
-     *         The maximum width for the "vjs-layout-huge" class.
-     *
-     * @return {Object}
-     *         An object mapping breakpoint names to maximum width values.
-     */
-    ;
-
-    _proto.breakpoints = function breakpoints(_breakpoints) {
-      // Used as a getter.
-      if (_breakpoints === undefined) {
-        return assign(this.breakpoints_);
-      }
-
-      this.breakpoint_ = '';
-      this.breakpoints_ = assign({}, DEFAULT_BREAKPOINTS, _breakpoints); // When breakpoint definitions change, we need to update the currently
-      // selected breakpoint.
-
-      this.updateCurrentBreakpoint_(); // Clone the breakpoints before returning.
-
-      return assign(this.breakpoints_);
-    }
-    /**
-     * Get or set a flag indicating whether or not this player should adjust
-     * its UI based on its dimensions.
-     *
-     * @param  {boolean} value
-     *         Should be `true` if the player should adjust its UI based on its
-     *         dimensions; otherwise, should be `false`.
-     *
-     * @return {boolean}
-     *         Will be `true` if this player should adjust its UI based on its
-     *         dimensions; otherwise, will be `false`.
-     */
-    ;
-
-    _proto.responsive = function responsive(value) {
-      // Used as a getter.
-      if (value === undefined) {
-        return this.responsive_;
-      }
-
-      value = Boolean(value);
-      var current = this.responsive_; // Nothing changed.
-
-      if (value === current) {
-        return;
-      } // The value actually changed, set it.
-
-
-      this.responsive_ = value; // Start listening for breakpoints and set the initial breakpoint if the
-      // player is now responsive.
-
-      if (value) {
-        this.on('playerresize', this.boundUpdateCurrentBreakpoint_);
-        this.updateCurrentBreakpoint_(); // Stop listening for breakpoints if the player is no longer responsive.
-      } else {
-        this.off('playerresize', this.boundUpdateCurrentBreakpoint_);
-        this.removeCurrentBreakpoint_();
-      }
-
-      return value;
-    }
-    /**
-     * Get current breakpoint name, if any.
-     *
-     * @return {string}
-     *         If there is currently a breakpoint set, returns a the key from the
-     *         breakpoints object matching it. Otherwise, returns an empty string.
-     */
-    ;
-
-    _proto.currentBreakpoint = function currentBreakpoint() {
-      return this.breakpoint_;
-    }
-    /**
-     * Get the current breakpoint class name.
-     *
-     * @return {string}
-     *         The matching class name (e.g. `"vjs-layout-tiny"` or
-     *         `"vjs-layout-large"`) for the current breakpoint. Empty string if
-     *         there is no current breakpoint.
-     */
-    ;
-
-    _proto.currentBreakpointClass = function currentBreakpointClass() {
-      return BREAKPOINT_CLASSES[this.breakpoint_] || '';
-    }
-    /**
-     * An object that describes a single piece of media.
-     *
-     * Properties that are not part of this type description will be retained; so,
-     * this can be viewed as a generic metadata storage mechanism as well.
-     *
-     * @see      {@link https://wicg.github.io/mediasession/#the-mediametadata-interface}
-     * @typedef  {Object} Player~MediaObject
-     *
-     * @property {string} [album]
-     *           Unused, except if this object is passed to the `MediaSession`
-     *           API.
-     *
-     * @property {string} [artist]
-     *           Unused, except if this object is passed to the `MediaSession`
-     *           API.
-     *
-     * @property {Object[]} [artwork]
-     *           Unused, except if this object is passed to the `MediaSession`
-     *           API. If not specified, will be populated via the `poster`, if
-     *           available.
-     *
-     * @property {string} [poster]
-     *           URL to an image that will display before playback.
-     *
-     * @property {Tech~SourceObject|Tech~SourceObject[]|string} [src]
-     *           A single source object, an array of source objects, or a string
-     *           referencing a URL to a media source. It is _highly recommended_
-     *           that an object or array of objects is used here, so that source
-     *           selection algorithms can take the `type` into account.
-     *
-     * @property {string} [title]
-     *           Unused, except if this object is passed to the `MediaSession`
-     *           API.
-     *
-     * @property {Object[]} [textTracks]
-     *           An array of objects to be used to create text tracks, following
-     *           the {@link https://www.w3.org/TR/html50/embedded-content-0.html#the-track-element|native track element format}.
-     *           For ease of removal, these will be created as "remote" text
-     *           tracks and set to automatically clean up on source changes.
-     *
-     *           These objects may have properties like `src`, `kind`, `label`,
-     *           and `language`, see {@link Tech#createRemoteTextTrack}.
+     * @method Player.prototype.videoTracks
      */
 
     /**
-     * Populate the player using a {@link Player~MediaObject|MediaObject}.
+     * Get the {@link AudioTrackList}
      *
-     * @param  {Player~MediaObject} media
-     *         A media object.
+     * @link https://html.spec.whatwg.org/multipage/embedded-content.html#audiotracklist
      *
-     * @param  {Function} ready
-     *         A callback to be called when the player is ready.
+     * @return {AudioTrackList}
+     *         the current audio track list
+     *
+     * @method Player.prototype.audioTracks
      */
-    ;
 
-    _proto.loadMedia = function loadMedia(media, ready) {
-      var _this23 = this;
-
-      if (!media || typeof media !== 'object') {
-        return;
-      }
-
-      this.reset(); // Clone the media object so it cannot be mutated from outside.
-
-      this.cache_.media = mergeOptions$3(media);
-      var _this$cache_$media = this.cache_.media,
-          artwork = _this$cache_$media.artwork,
-          poster = _this$cache_$media.poster,
-          src = _this$cache_$media.src,
-          textTracks = _this$cache_$media.textTracks; // If `artwork` is not given, create it using `poster`.
-
-      if (!artwork && poster) {
-        this.cache_.media.artwork = [{
-          src: poster,
-          type: getMimetype(poster)
-        }];
-      }
-
-      if (src) {
-        this.src(src);
-      }
-
-      if (poster) {
-        this.poster(poster);
-      }
-
-      if (Array.isArray(textTracks)) {
-        textTracks.forEach(function (tt) {
-          return _this23.addRemoteTextTrack(tt, false);
-        });
-      }
-
-      this.ready(ready);
-    }
     /**
-     * Get a clone of the current {@link Player~MediaObject} for this player.
+     * Get the {@link TextTrackList}
      *
-     * If the `loadMedia` method has not been used, will attempt to return a
-     * {@link Player~MediaObject} based on the current state of the player.
+     * @link http://www.w3.org/html/wg/drafts/html/master/embedded-content-0.html#dom-media-texttracks
      *
-     * @return {Player~MediaObject}
+     * @return {TextTrackList}
+     *         the current text track list
+     *
+     * @method Player.prototype.textTracks
      */
-    ;
 
-    _proto.getMedia = function getMedia() {
-      if (!this.cache_.media) {
-        var poster = this.poster();
-        var src = this.currentSources();
-        var textTracks = Array.prototype.map.call(this.remoteTextTracks(), function (tt) {
-          return {
-            kind: tt.kind,
-            label: tt.label,
-            language: tt.language,
-            src: tt.src
-          };
-        });
-        var media = {
-          src: src,
-          textTracks: textTracks
+    /**
+     * Get the remote {@link TextTrackList}
+     *
+     * @return {TextTrackList}
+     *         The current remote text track list
+     *
+     * @method Player.prototype.remoteTextTracks
+     */
+
+    /**
+     * Get the remote {@link HtmlTrackElementList} tracks.
+     *
+     * @return {HtmlTrackElementList}
+     *         The current remote text track element list
+     *
+     * @method Player.prototype.remoteTextTrackEls
+     */
+
+    ALL.names.forEach(function (name) {
+        const props = ALL[name];
+        Player.prototype[props.getterName] = function () {
+            if (this.tech_) {
+                return this.tech_[props.getterName]();
+            }
+
+            // if we have not yet loadTech_, we create {video,audio,text}Tracks_
+            // these will be passed to the tech during loading
+            this[props.privateName] = this[props.privateName] || new props.ListClass();
+            return this[props.privateName];
         };
+    });
 
-        if (poster) {
-          media.poster = poster;
-          media.artwork = [{
-            src: media.poster,
-            type: getMimetype(media.poster)
-          }];
-        }
-
-        return media;
-      }
-
-      return mergeOptions$3(this.cache_.media);
-    }
     /**
-     * Gets tag settings
+     * Get or set the `Player`'s crossorigin option. For the HTML5 player, this
+     * sets the `crossOrigin` property on the `<video>` tag to control the CORS
+     * behavior.
      *
-     * @param {Element} tag
-     *        The player tag
+     * @see [Video Element Attributes]{@link https://developer.mozilla.org/en-US/docs/Web/HTML/Element/video#attr-crossorigin}
      *
-     * @return {Object}
-     *         An object containing all of the settings
-     *         for a player tag
+     * @param {string} [value]
+     *        The value to set the `Player`'s crossorigin to. If an argument is
+     *        given, must be one of `anonymous` or `use-credentials`.
+     *
+     * @return {string|undefined}
+     *         - The current crossorigin value of the `Player` when getting.
+     *         - undefined when setting
      */
-    ;
+    Player.prototype.crossorigin = Player.prototype.crossOrigin;
 
-    Player.getTagSettings = function getTagSettings(tag) {
-      var baseOptions = {
-        sources: [],
-        tracks: []
-      };
-      var tagOptions = getAttributes(tag);
-      var dataSetup = tagOptions['data-setup'];
-
-      if (hasClass(tag, 'vjs-fill')) {
-        tagOptions.fill = true;
-      }
-
-      if (hasClass(tag, 'vjs-fluid')) {
-        tagOptions.fluid = true;
-      } // Check if data-setup attr exists.
-
-
-      if (dataSetup !== null) {
-        // Parse options JSON
-        // If empty string, make it a parsable json object.
-        var _safeParseTuple = tuple(dataSetup || '{}'),
-            err = _safeParseTuple[0],
-            data = _safeParseTuple[1];
-
-        if (err) {
-          log$1.error(err);
-        }
-
-        assign(tagOptions, data);
-      }
-
-      assign(baseOptions, tagOptions); // Get tag children settings
-
-      if (tag.hasChildNodes()) {
-        var children = tag.childNodes;
-
-        for (var i = 0, j = children.length; i < j; i++) {
-          var child = children[i]; // Change case needed: http://ejohn.org/blog/nodename-case-sensitivity/
-
-          var childName = child.nodeName.toLowerCase();
-
-          if (childName === 'source') {
-            baseOptions.sources.push(getAttributes(child));
-          } else if (childName === 'track') {
-            baseOptions.tracks.push(getAttributes(child));
-          }
-        }
-      }
-
-      return baseOptions;
-    }
     /**
-     * Determine whether or not flexbox is supported
+     * Global enumeration of players.
      *
-     * @return {boolean}
-     *         - true if flexbox is supported
-     *         - false if flexbox is not supported
-     */
-    ;
-
-    _proto.flexNotSupported_ = function flexNotSupported_() {
-      var elem = document.createElement('i'); // Note: We don't actually use flexBasis (or flexOrder), but it's one of the more
-      // common flex features that we can rely on when checking for flex support.
-
-      return !('flexBasis' in elem.style || 'webkitFlexBasis' in elem.style || 'mozFlexBasis' in elem.style || 'msFlexBasis' in elem.style || // IE10-specific (2012 flex spec), available for completeness
-      'msFlexOrder' in elem.style);
-    }
-    /**
-     * Set debug mode to enable/disable logs at info level.
+     * The keys are the player IDs and the values are either the {@link Player}
+     * instance or `null` for disposed players.
      *
-     * @param {boolean} enabled
-     * @fires Player#debugon
-     * @fires Player#debugoff
+     * @type {Object}
      */
-    ;
+    Player.players = {};
+    const navigator = window.navigator;
 
-    _proto.debug = function debug(enabled) {
-      if (enabled === undefined) {
-        return this.debugEnabled_;
-      }
-
-      if (enabled) {
-        this.trigger('debugon');
-        this.previousLogLevel_ = this.log.level;
-        this.log.level('debug');
-        this.debugEnabled_ = true;
-      } else {
-        this.trigger('debugoff');
-        this.log.level(this.previousLogLevel_);
-        this.previousLogLevel_ = undefined;
-        this.debugEnabled_ = false;
-      }
-    }
-    /**
-     * Set or get current playback rates.
-     * Takes an array and updates the playback rates menu with the new items.
-     * Pass in an empty array to hide the menu.
-     * Values other than arrays are ignored.
-     *
-     * @fires Player#playbackrateschange
-     * @param {number[]} newRates
-     *                   The new rates that the playback rates menu should update to.
-     *                   An empty array will hide the menu
-     * @return {number[]} When used as a getter will return the current playback rates
-     */
-    ;
-
-    _proto.playbackRates = function playbackRates(newRates) {
-      if (newRates === undefined) {
-        return this.cache_.playbackRates;
-      } // ignore any value that isn't an array
-
-
-      if (!Array.isArray(newRates)) {
-        return;
-      } // ignore any arrays that don't only contain numbers
-
-
-      if (!newRates.every(function (rate) {
-        return typeof rate === 'number';
-      })) {
-        return;
-      }
-
-      this.cache_.playbackRates = newRates;
-      /**
-      * fires when the playback rates in a player are changed
-      *
-      * @event Player#playbackrateschange
-      * @type {EventTarget~Event}
-      */
-
-      this.trigger('playbackrateschange');
-    };
-
-    return Player;
-  }(Component$1);
-  /**
-   * Get the {@link VideoTrackList}
-   * @link https://html.spec.whatwg.org/multipage/embedded-content.html#videotracklist
-   *
-   * @return {VideoTrackList}
-   *         the current video track list
-   *
-   * @method Player.prototype.videoTracks
-   */
-
-  /**
-   * Get the {@link AudioTrackList}
-   * @link https://html.spec.whatwg.org/multipage/embedded-content.html#audiotracklist
-   *
-   * @return {AudioTrackList}
-   *         the current audio track list
-   *
-   * @method Player.prototype.audioTracks
-   */
-
-  /**
-   * Get the {@link TextTrackList}
-   *
-   * @link http://www.w3.org/html/wg/drafts/html/master/embedded-content-0.html#dom-media-texttracks
-   *
-   * @return {TextTrackList}
-   *         the current text track list
-   *
-   * @method Player.prototype.textTracks
-   */
-
-  /**
-   * Get the remote {@link TextTrackList}
-   *
-   * @return {TextTrackList}
-   *         The current remote text track list
-   *
-   * @method Player.prototype.remoteTextTracks
-   */
-
-  /**
-   * Get the remote {@link HtmlTrackElementList} tracks.
-   *
-   * @return {HtmlTrackElementList}
-   *         The current remote text track element list
-   *
-   * @method Player.prototype.remoteTextTrackEls
-   */
-
-
-  ALL.names.forEach(function (name) {
-    var props = ALL[name];
-
-    Player.prototype[props.getterName] = function () {
-      if (this.tech_) {
-        return this.tech_[props.getterName]();
-      } // if we have not yet loadTech_, we create {video,audio,text}Tracks_
-      // these will be passed to the tech during loading
-
-
-      this[props.privateName] = this[props.privateName] || new props.ListClass();
-      return this[props.privateName];
-    };
-  });
-  /**
-   * Get or set the `Player`'s crossorigin option. For the HTML5 player, this
-   * sets the `crossOrigin` property on the `<video>` tag to control the CORS
-   * behavior.
-   *
-   * @see [Video Element Attributes]{@link https://developer.mozilla.org/en-US/docs/Web/HTML/Element/video#attr-crossorigin}
-   *
-   * @param {string} [value]
-   *        The value to set the `Player`'s crossorigin to. If an argument is
-   *        given, must be one of `anonymous` or `use-credentials`.
-   *
-   * @return {string|undefined}
-   *         - The current crossorigin value of the `Player` when getting.
-   *         - undefined when setting
-   */
-
-  Player.prototype.crossorigin = Player.prototype.crossOrigin;
-  /**
-   * Global enumeration of players.
-   *
-   * The keys are the player IDs and the values are either the {@link Player}
-   * instance or `null` for disposed players.
-   *
-   * @type {Object}
-   */
-
-  Player.players = {};
-  var navigator = window.navigator;
-  /*
+    /*
    * Player instance options, surfaced using options
    * options = Player.prototype.options_
    * Make changes in options, not here.
@@ -29909,2637 +26737,2629 @@
    * @type {Object}
    * @private
    */
-
-  Player.prototype.options_ = {
-    // Default order of fallback technology
-    techOrder: Tech.defaultTechOrder_,
-    html5: {},
-    // default inactivity timeout
-    inactivityTimeout: 2000,
-    // default playback rates
-    playbackRates: [],
-    // Add playback rate selection by adding rates
-    // 'playbackRates': [0.5, 1, 1.5, 2],
-    liveui: false,
-    // Included control sets
-    children: ['mediaLoader', 'posterImage', 'textTrackDisplay', 'loadingSpinner', 'bigPlayButton', 'liveTracker', 'controlBar', 'errorDisplay', 'textTrackSettings', 'resizeManager'],
-    language: navigator && (navigator.languages && navigator.languages[0] || navigator.userLanguage || navigator.language) || 'en',
-    // locales and their language translations
-    languages: {},
-    // Default message to show when a video cannot be played.
-    notSupportedMessage: 'No compatible source was found for this media.',
-    normalizeAutoplay: false,
-    fullscreen: {
-      options: {
-        navigationUI: 'hide'
-      }
-    },
-    breakpoints: {},
-    responsive: false,
-    audioOnlyMode: false,
-    audioPosterMode: false
-  };
-  [
-  /**
-   * Returns whether or not the player is in the "ended" state.
-   *
-   * @return {Boolean} True if the player is in the ended state, false if not.
-   * @method Player#ended
-   */
-  'ended',
-  /**
-   * Returns whether or not the player is in the "seeking" state.
-   *
-   * @return {Boolean} True if the player is in the seeking state, false if not.
-   * @method Player#seeking
-   */
-  'seeking',
-  /**
-   * Returns the TimeRanges of the media that are currently available
-   * for seeking to.
-   *
-   * @return {TimeRanges} the seekable intervals of the media timeline
-   * @method Player#seekable
-   */
-  'seekable',
-  /**
-   * Returns the current state of network activity for the element, from
-   * the codes in the list below.
-   * - NETWORK_EMPTY (numeric value 0)
-   *   The element has not yet been initialised. All attributes are in
-   *   their initial states.
-   * - NETWORK_IDLE (numeric value 1)
-   *   The element's resource selection algorithm is active and has
-   *   selected a resource, but it is not actually using the network at
-   *   this time.
-   * - NETWORK_LOADING (numeric value 2)
-   *   The user agent is actively trying to download data.
-   * - NETWORK_NO_SOURCE (numeric value 3)
-   *   The element's resource selection algorithm is active, but it has
-   *   not yet found a resource to use.
-   *
-   * @see https://html.spec.whatwg.org/multipage/embedded-content.html#network-states
-   * @return {number} the current network activity state
-   * @method Player#networkState
-   */
-  'networkState',
-  /**
-   * Returns a value that expresses the current state of the element
-   * with respect to rendering the current playback position, from the
-   * codes in the list below.
-   * - HAVE_NOTHING (numeric value 0)
-   *   No information regarding the media resource is available.
-   * - HAVE_METADATA (numeric value 1)
-   *   Enough of the resource has been obtained that the duration of the
-   *   resource is available.
-   * - HAVE_CURRENT_DATA (numeric value 2)
-   *   Data for the immediate current playback position is available.
-   * - HAVE_FUTURE_DATA (numeric value 3)
-   *   Data for the immediate current playback position is available, as
-   *   well as enough data for the user agent to advance the current
-   *   playback position in the direction of playback.
-   * - HAVE_ENOUGH_DATA (numeric value 4)
-   *   The user agent estimates that enough data is available for
-   *   playback to proceed uninterrupted.
-   *
-   * @see https://html.spec.whatwg.org/multipage/embedded-content.html#dom-media-readystate
-   * @return {number} the current playback rendering state
-   * @method Player#readyState
-   */
-  'readyState'].forEach(function (fn) {
-    Player.prototype[fn] = function () {
-      return this.techGet_(fn);
+    Player.prototype.options_ = {
+        // Default order of fallback technology
+        techOrder: Tech.defaultTechOrder_,
+        html5: {},
+        // enable sourceset by default
+        enableSourceset: true,
+        // default inactivity timeout
+        inactivityTimeout: 2000,
+        // default playback rates
+        playbackRates: [],
+        // Add playback rate selection by adding rates
+        // 'playbackRates': [0.5, 1, 1.5, 2],
+        liveui: false,
+        // Included control sets
+        children: ['mediaLoader', 'posterImage', 'titleBar', 'textTrackDisplay', 'loadingSpinner', 'bigPlayButton', 'liveTracker', 'controlBar', 'errorDisplay', 'textTrackSettings', 'resizeManager'],
+        language: navigator && (navigator.languages && navigator.languages[0] || navigator.userLanguage || navigator.language) || 'en',
+        // locales and their language translations
+        languages: {},
+        // Default message to show when a video cannot be played.
+        notSupportedMessage: 'No compatible source was found for this media.',
+        normalizeAutoplay: false,
+        fullscreen: {
+            options: {
+                navigationUI: 'hide'
+            }
+        },
+        breakpoints: {},
+        responsive: false,
+        audioOnlyMode: false,
+        audioPosterMode: false
     };
-  });
-  TECH_EVENTS_RETRIGGER.forEach(function (event) {
-    Player.prototype["handleTech" + toTitleCase$1(event) + "_"] = function () {
-      return this.trigger(event);
-    };
-  });
-  /**
-   * Fired when the player has initial duration and dimension information
-   *
-   * @event Player#loadedmetadata
-   * @type {EventTarget~Event}
-   */
-
-  /**
-   * Fired when the player has downloaded data at the current playback position
-   *
-   * @event Player#loadeddata
-   * @type {EventTarget~Event}
-   */
-
-  /**
-   * Fired when the current playback position has changed *
-   * During playback this is fired every 15-250 milliseconds, depending on the
-   * playback technology in use.
-   *
-   * @event Player#timeupdate
-   * @type {EventTarget~Event}
-   */
-
-  /**
-   * Fired when the volume changes
-   *
-   * @event Player#volumechange
-   * @type {EventTarget~Event}
-   */
-
-  /**
-   * Reports whether or not a player has a plugin available.
-   *
-   * This does not report whether or not the plugin has ever been initialized
-   * on this player. For that, [usingPlugin]{@link Player#usingPlugin}.
-   *
-   * @method Player#hasPlugin
-   * @param  {string}  name
-   *         The name of a plugin.
-   *
-   * @return {boolean}
-   *         Whether or not this player has the requested plugin available.
-   */
-
-  /**
-   * Reports whether or not a player is using a plugin by name.
-   *
-   * For basic plugins, this only reports whether the plugin has _ever_ been
-   * initialized on this player.
-   *
-   * @method Player#usingPlugin
-   * @param  {string} name
-   *         The name of a plugin.
-   *
-   * @return {boolean}
-   *         Whether or not this player is using the requested plugin.
-   */
-
-  Component$1.registerComponent('Player', Player);
-
-  var setPrototypeOf = createCommonjsModule(function (module) {
-    function _setPrototypeOf(o, p) {
-      module.exports = _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) {
-        o.__proto__ = p;
-        return o;
-      };
-
-      return _setPrototypeOf(o, p);
-    }
-
-    module.exports = _setPrototypeOf;
-  });
-
-  function _isNativeReflectConstruct() {
-    if (typeof Reflect === "undefined" || !Reflect.construct) return false;
-    if (Reflect.construct.sham) return false;
-    if (typeof Proxy === "function") return true;
-
-    try {
-      Date.prototype.toString.call(Reflect.construct(Date, [], function () {}));
-      return true;
-    } catch (e) {
-      return false;
-    }
-  }
-
-  var isNativeReflectConstruct = _isNativeReflectConstruct;
-
-  var construct = createCommonjsModule(function (module) {
-    function _construct(Parent, args, Class) {
-      if (isNativeReflectConstruct()) {
-        module.exports = _construct = Reflect.construct;
-      } else {
-        module.exports = _construct = function _construct(Parent, args, Class) {
-          var a = [null];
-          a.push.apply(a, args);
-          var Constructor = Function.bind.apply(Parent, a);
-          var instance = new Constructor();
-          if (Class) setPrototypeOf(instance, Class.prototype);
-          return instance;
+    [
+        /**
+         * Returns whether or not the player is in the "ended" state.
+         *
+         * @return {Boolean} True if the player is in the ended state, false if not.
+         * @method Player#ended
+         */
+        'ended',
+        /**
+         * Returns whether or not the player is in the "seeking" state.
+         *
+         * @return {Boolean} True if the player is in the seeking state, false if not.
+         * @method Player#seeking
+         */
+        'seeking',
+        /**
+         * Returns the TimeRanges of the media that are currently available
+         * for seeking to.
+         *
+         * @return {TimeRanges} the seekable intervals of the media timeline
+         * @method Player#seekable
+         */
+        'seekable',
+        /**
+         * Returns the current state of network activity for the element, from
+         * the codes in the list below.
+         * - NETWORK_EMPTY (numeric value 0)
+         *   The element has not yet been initialised. All attributes are in
+         *   their initial states.
+         * - NETWORK_IDLE (numeric value 1)
+         *   The element's resource selection algorithm is active and has
+         *   selected a resource, but it is not actually using the network at
+         *   this time.
+         * - NETWORK_LOADING (numeric value 2)
+         *   The user agent is actively trying to download data.
+         * - NETWORK_NO_SOURCE (numeric value 3)
+         *   The element's resource selection algorithm is active, but it has
+         *   not yet found a resource to use.
+         *
+         * @see https://html.spec.whatwg.org/multipage/embedded-content.html#network-states
+         * @return {number} the current network activity state
+         * @method Player#networkState
+         */
+        'networkState',
+        /**
+         * Returns a value that expresses the current state of the element
+         * with respect to rendering the current playback position, from the
+         * codes in the list below.
+         * - HAVE_NOTHING (numeric value 0)
+         *   No information regarding the media resource is available.
+         * - HAVE_METADATA (numeric value 1)
+         *   Enough of the resource has been obtained that the duration of the
+         *   resource is available.
+         * - HAVE_CURRENT_DATA (numeric value 2)
+         *   Data for the immediate current playback position is available.
+         * - HAVE_FUTURE_DATA (numeric value 3)
+         *   Data for the immediate current playback position is available, as
+         *   well as enough data for the user agent to advance the current
+         *   playback position in the direction of playback.
+         * - HAVE_ENOUGH_DATA (numeric value 4)
+         *   The user agent estimates that enough data is available for
+         *   playback to proceed uninterrupted.
+         *
+         * @see https://html.spec.whatwg.org/multipage/embedded-content.html#dom-media-readystate
+         * @return {number} the current playback rendering state
+         * @method Player#readyState
+         */
+        'readyState'].forEach(function (fn) {
+        Player.prototype[fn] = function () {
+            return this.techGet_(fn);
+        };
+    });
+    TECH_EVENTS_RETRIGGER.forEach(function (event) {
+        Player.prototype[`handleTech${toTitleCase$1(event)}_`] = function () {
+            return this.trigger(event);
         };
-      }
-
-      return _construct.apply(null, arguments);
-    }
-
-    module.exports = _construct;
-  });
-
-  /**
-   * The base plugin name.
-   *
-   * @private
-   * @constant
-   * @type {string}
-   */
-
-  var BASE_PLUGIN_NAME = 'plugin';
-  /**
-   * The key on which a player's active plugins cache is stored.
-   *
-   * @private
-   * @constant
-   * @type     {string}
-   */
-
-  var PLUGIN_CACHE_KEY = 'activePlugins_';
-  /**
-   * Stores registered plugins in a private space.
-   *
-   * @private
-   * @type    {Object}
-   */
-
-  var pluginStorage = {};
-  /**
-   * Reports whether or not a plugin has been registered.
-   *
-   * @private
-   * @param   {string} name
-   *          The name of a plugin.
-   *
-   * @return {boolean}
-   *          Whether or not the plugin has been registered.
-   */
-
-  var pluginExists = function pluginExists(name) {
-    return pluginStorage.hasOwnProperty(name);
-  };
-  /**
-   * Get a single registered plugin by name.
-   *
-   * @private
-   * @param   {string} name
-   *          The name of a plugin.
-   *
-   * @return {Function|undefined}
-   *          The plugin (or undefined).
-   */
-
-
-  var getPlugin = function getPlugin(name) {
-    return pluginExists(name) ? pluginStorage[name] : undefined;
-  };
-  /**
-   * Marks a plugin as "active" on a player.
-   *
-   * Also, ensures that the player has an object for tracking active plugins.
-   *
-   * @private
-   * @param   {Player} player
-   *          A Video.js player instance.
-   *
-   * @param   {string} name
-   *          The name of a plugin.
-   */
-
-
-  var markPluginAsActive = function markPluginAsActive(player, name) {
-    player[PLUGIN_CACHE_KEY] = player[PLUGIN_CACHE_KEY] || {};
-    player[PLUGIN_CACHE_KEY][name] = true;
-  };
-  /**
-   * Triggers a pair of plugin setup events.
-   *
-   * @private
-   * @param  {Player} player
-   *         A Video.js player instance.
-   *
-   * @param  {Plugin~PluginEventHash} hash
-   *         A plugin event hash.
-   *
-   * @param  {boolean} [before]
-   *         If true, prefixes the event name with "before". In other words,
-   *         use this to trigger "beforepluginsetup" instead of "pluginsetup".
-   */
-
-
-  var triggerSetupEvent = function triggerSetupEvent(player, hash, before) {
-    var eventName = (before ? 'before' : '') + 'pluginsetup';
-    player.trigger(eventName, hash);
-    player.trigger(eventName + ':' + hash.name, hash);
-  };
-  /**
-   * Takes a basic plugin function and returns a wrapper function which marks
-   * on the player that the plugin has been activated.
-   *
-   * @private
-   * @param   {string} name
-   *          The name of the plugin.
-   *
-   * @param   {Function} plugin
-   *          The basic plugin.
-   *
-   * @return {Function}
-   *          A wrapper function for the given plugin.
-   */
-
-
-  var createBasicPlugin = function createBasicPlugin(name, plugin) {
-    var basicPluginWrapper = function basicPluginWrapper() {
-      // We trigger the "beforepluginsetup" and "pluginsetup" events on the player
-      // regardless, but we want the hash to be consistent with the hash provided
-      // for advanced plugins.
-      //
-      // The only potentially counter-intuitive thing here is the `instance` in
-      // the "pluginsetup" event is the value returned by the `plugin` function.
-      triggerSetupEvent(this, {
-        name: name,
-        plugin: plugin,
-        instance: null
-      }, true);
-      var instance = plugin.apply(this, arguments);
-      markPluginAsActive(this, name);
-      triggerSetupEvent(this, {
-        name: name,
-        plugin: plugin,
-        instance: instance
-      });
-      return instance;
-    };
-
-    Object.keys(plugin).forEach(function (prop) {
-      basicPluginWrapper[prop] = plugin[prop];
     });
-    return basicPluginWrapper;
-  };
-  /**
-   * Takes a plugin sub-class and returns a factory function for generating
-   * instances of it.
-   *
-   * This factory function will replace itself with an instance of the requested
-   * sub-class of Plugin.
-   *
-   * @private
-   * @param   {string} name
-   *          The name of the plugin.
-   *
-   * @param   {Plugin} PluginSubClass
-   *          The advanced plugin.
-   *
-   * @return {Function}
-   */
 
-
-  var createPluginFactory = function createPluginFactory(name, PluginSubClass) {
-    // Add a `name` property to the plugin prototype so that each plugin can
-    // refer to itself by name.
-    PluginSubClass.prototype.name = name;
-    return function () {
-      triggerSetupEvent(this, {
-        name: name,
-        plugin: PluginSubClass,
-        instance: null
-      }, true);
-
-      for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
-        args[_key] = arguments[_key];
-      }
-
-      var instance = construct(PluginSubClass, [this].concat(args)); // The plugin is replaced by a function that returns the current instance.
-
-
-      this[name] = function () {
-        return instance;
-      };
-
-      triggerSetupEvent(this, instance.getEventHash());
-      return instance;
-    };
-  };
-  /**
-   * Parent class for all advanced plugins.
-   *
-   * @mixes   module:evented~EventedMixin
-   * @mixes   module:stateful~StatefulMixin
-   * @fires   Player#beforepluginsetup
-   * @fires   Player#beforepluginsetup:$name
-   * @fires   Player#pluginsetup
-   * @fires   Player#pluginsetup:$name
-   * @listens Player#dispose
-   * @throws  {Error}
-   *          If attempting to instantiate the base {@link Plugin} class
-   *          directly instead of via a sub-class.
-   */
-
-
-  var Plugin = /*#__PURE__*/function () {
     /**
-     * Creates an instance of this class.
+     * Fired when the player has initial duration and dimension information
      *
-     * Sub-classes should call `super` to ensure plugins are properly initialized.
-     *
-     * @param {Player} player
-     *        A Video.js player instance.
-     */
-    function Plugin(player) {
-      if (this.constructor === Plugin) {
-        throw new Error('Plugin must be sub-classed; not directly instantiated.');
-      }
-
-      this.player = player;
-
-      if (!this.log) {
-        this.log = this.player.log.createLogger(this.name);
-      } // Make this object evented, but remove the added `trigger` method so we
-      // use the prototype version instead.
-
-
-      evented(this);
-      delete this.trigger;
-      stateful(this, this.constructor.defaultState);
-      markPluginAsActive(player, this.name); // Auto-bind the dispose method so we can use it as a listener and unbind
-      // it later easily.
-
-      this.dispose = this.dispose.bind(this); // If the player is disposed, dispose the plugin.
-
-      player.on('dispose', this.dispose);
-    }
-    /**
-     * Get the version of the plugin that was set on <pluginName>.VERSION
+     * @event Player#loadedmetadata
+     * @type {Event}
      */
 
-
-    var _proto = Plugin.prototype;
-
-    _proto.version = function version() {
-      return this.constructor.VERSION;
-    }
     /**
-     * Each event triggered by plugins includes a hash of additional data with
-     * conventional properties.
+     * Fired when the player has downloaded data at the current playback position
      *
-     * This returns that object or mutates an existing hash.
-     *
-     * @param   {Object} [hash={}]
-     *          An object to be used as event an event hash.
-     *
-     * @return {Plugin~PluginEventHash}
-     *          An event hash object with provided properties mixed-in.
+     * @event Player#loadeddata
+     * @type {Event}
      */
-    ;
 
-    _proto.getEventHash = function getEventHash(hash) {
-      if (hash === void 0) {
-        hash = {};
-      }
-
-      hash.name = this.name;
-      hash.plugin = this.constructor;
-      hash.instance = this;
-      return hash;
-    }
     /**
-     * Triggers an event on the plugin object and overrides
-     * {@link module:evented~EventedMixin.trigger|EventedMixin.trigger}.
+     * Fired when the current playback position has changed *
+     * During playback this is fired every 15-250 milliseconds, depending on the
+     * playback technology in use.
      *
-     * @param   {string|Object} event
-     *          An event type or an object with a type property.
+     * @event Player#timeupdate
+     * @type {Event}
+     */
+
+    /**
+     * Fired when the volume changes
      *
-     * @param   {Object} [hash={}]
-     *          Additional data hash to merge with a
-     *          {@link Plugin~PluginEventHash|PluginEventHash}.
+     * @event Player#volumechange
+     * @type {Event}
+     */
+
+    /**
+     * Reports whether or not a player has a plugin available.
+     *
+     * This does not report whether or not the plugin has ever been initialized
+     * on this player. For that, [usingPlugin]{@link Player#usingPlugin}.
+     *
+     * @method Player#hasPlugin
+     * @param  {string}  name
+     *         The name of a plugin.
      *
      * @return {boolean}
-     *          Whether or not default was prevented.
+     *         Whether or not this player has the requested plugin available.
      */
-    ;
 
-    _proto.trigger = function trigger$1(event, hash) {
-      if (hash === void 0) {
-        hash = {};
-      }
-
-      return trigger(this.eventBusEl_, event, this.getEventHash(hash));
-    }
     /**
-     * Handles "statechanged" events on the plugin. No-op by default, override by
-     * subclassing.
+     * Reports whether or not a player is using a plugin by name.
      *
-     * @abstract
-     * @param    {Event} e
-     *           An event object provided by a "statechanged" event.
-     *
-     * @param    {Object} e.changes
-     *           An object describing changes that occurred with the "statechanged"
-     *           event.
-     */
-    ;
-
-    _proto.handleStateChanged = function handleStateChanged(e) {}
-    /**
-     * Disposes a plugin.
-     *
-     * Subclasses can override this if they want, but for the sake of safety,
-     * it's probably best to subscribe the "dispose" event.
-     *
-     * @fires Plugin#dispose
-     */
-    ;
-
-    _proto.dispose = function dispose() {
-      var name = this.name,
-          player = this.player;
-      /**
-       * Signals that a advanced plugin is about to be disposed.
-       *
-       * @event Plugin#dispose
-       * @type  {EventTarget~Event}
-       */
-
-      this.trigger('dispose');
-      this.off();
-      player.off('dispose', this.dispose); // Eliminate any possible sources of leaking memory by clearing up
-      // references between the player and the plugin instance and nulling out
-      // the plugin's state and replacing methods with a function that throws.
-
-      player[PLUGIN_CACHE_KEY][name] = false;
-      this.player = this.state = null; // Finally, replace the plugin name on the player with a new factory
-      // function, so that the plugin is ready to be set up again.
-
-      player[name] = createPluginFactory(name, pluginStorage[name]);
-    }
-    /**
-     * Determines if a plugin is a basic plugin (i.e. not a sub-class of `Plugin`).
-     *
-     * @param   {string|Function} plugin
-     *          If a string, matches the name of a plugin. If a function, will be
-     *          tested directly.
-     *
-     * @return {boolean}
-     *          Whether or not a plugin is a basic plugin.
-     */
-    ;
-
-    Plugin.isBasic = function isBasic(plugin) {
-      var p = typeof plugin === 'string' ? getPlugin(plugin) : plugin;
-      return typeof p === 'function' && !Plugin.prototype.isPrototypeOf(p.prototype);
-    }
-    /**
-     * Register a Video.js plugin.
-     *
-     * @param   {string} name
-     *          The name of the plugin to be registered. Must be a string and
-     *          must not match an existing plugin or a method on the `Player`
-     *          prototype.
-     *
-     * @param   {Function} plugin
-     *          A sub-class of `Plugin` or a function for basic plugins.
-     *
-     * @return {Function}
-     *          For advanced plugins, a factory function for that plugin. For
-     *          basic plugins, a wrapper function that initializes the plugin.
-     */
-    ;
-
-    Plugin.registerPlugin = function registerPlugin(name, plugin) {
-      if (typeof name !== 'string') {
-        throw new Error("Illegal plugin name, \"" + name + "\", must be a string, was " + typeof name + ".");
-      }
-
-      if (pluginExists(name)) {
-        log$1.warn("A plugin named \"" + name + "\" already exists. You may want to avoid re-registering plugins!");
-      } else if (Player.prototype.hasOwnProperty(name)) {
-        throw new Error("Illegal plugin name, \"" + name + "\", cannot share a name with an existing player method!");
-      }
-
-      if (typeof plugin !== 'function') {
-        throw new Error("Illegal plugin for \"" + name + "\", must be a function, was " + typeof plugin + ".");
-      }
-
-      pluginStorage[name] = plugin; // Add a player prototype method for all sub-classed plugins (but not for
-      // the base Plugin class).
-
-      if (name !== BASE_PLUGIN_NAME) {
-        if (Plugin.isBasic(plugin)) {
-          Player.prototype[name] = createBasicPlugin(name, plugin);
-        } else {
-          Player.prototype[name] = createPluginFactory(name, plugin);
-        }
-      }
-
-      return plugin;
-    }
-    /**
-     * De-register a Video.js plugin.
+     * For basic plugins, this only reports whether the plugin has _ever_ been
+     * initialized on this player.
      *
+     * @method Player#usingPlugin
      * @param  {string} name
-     *         The name of the plugin to be de-registered. Must be a string that
-     *         matches an existing plugin.
+     *         The name of a plugin.
      *
-     * @throws {Error}
-     *         If an attempt is made to de-register the base plugin.
+     * @return {boolean}
+     *         Whether or not this player is using the requested plugin.
      */
-    ;
 
-    Plugin.deregisterPlugin = function deregisterPlugin(name) {
-      if (name === BASE_PLUGIN_NAME) {
-        throw new Error('Cannot de-register base plugin.');
-      }
+    Component$1.registerComponent('Player', Player);
 
-      if (pluginExists(name)) {
-        delete pluginStorage[name];
-        delete Player.prototype[name];
-      }
-    }
     /**
-     * Gets an object containing multiple Video.js plugins.
-     *
-     * @param   {Array} [names]
-     *          If provided, should be an array of plugin names. Defaults to _all_
-     *          plugin names.
-     *
-     * @return {Object|undefined}
-     *          An object containing plugin(s) associated with their name(s) or
-     *          `undefined` if no matching plugins exist).
+     * @file plugin.js
      */
-    ;
 
-    Plugin.getPlugins = function getPlugins(names) {
-      if (names === void 0) {
-        names = Object.keys(pluginStorage);
-      }
-
-      var result;
-      names.forEach(function (name) {
-        var plugin = getPlugin(name);
-
-        if (plugin) {
-          result = result || {};
-          result[name] = plugin;
-        }
-      });
-      return result;
-    }
     /**
-     * Gets a plugin's version, if available
+     * The base plugin name.
      *
+     * @private
+     * @constant
+     * @type {string}
+     */
+    const BASE_PLUGIN_NAME = 'plugin';
+
+    /**
+     * The key on which a player's active plugins cache is stored.
+     *
+     * @private
+     * @constant
+     * @type     {string}
+     */
+    const PLUGIN_CACHE_KEY = 'activePlugins_';
+
+    /**
+     * Stores registered plugins in a private space.
+     *
+     * @private
+     * @type    {Object}
+     */
+    const pluginStorage = {};
+
+    /**
+     * Reports whether or not a plugin has been registered.
+     *
+     * @private
      * @param   {string} name
      *          The name of a plugin.
      *
-     * @return {string}
-     *          The plugin's version or an empty string.
+     * @return {boolean}
+     *          Whether or not the plugin has been registered.
      */
-    ;
+    const pluginExists = name => pluginStorage.hasOwnProperty(name);
 
-    Plugin.getPluginVersion = function getPluginVersion(name) {
-      var plugin = getPlugin(name);
-      return plugin && plugin.VERSION || '';
+    /**
+     * Get a single registered plugin by name.
+     *
+     * @private
+     * @param   {string} name
+     *          The name of a plugin.
+     *
+     * @return {typeof Plugin|Function|undefined}
+     *          The plugin (or undefined).
+     */
+    const getPlugin = name => pluginExists(name) ? pluginStorage[name] : undefined;
+
+    /**
+     * Marks a plugin as "active" on a player.
+     *
+     * Also, ensures that the player has an object for tracking active plugins.
+     *
+     * @private
+     * @param   {Player} player
+     *          A Video.js player instance.
+     *
+     * @param   {string} name
+     *          The name of a plugin.
+     */
+    const markPluginAsActive = (player, name) => {
+        player[PLUGIN_CACHE_KEY] = player[PLUGIN_CACHE_KEY] || {};
+        player[PLUGIN_CACHE_KEY][name] = true;
     };
 
-    return Plugin;
-  }();
-  /**
-   * Gets a plugin by name if it exists.
-   *
-   * @static
-   * @method   getPlugin
-   * @memberOf Plugin
-   * @param    {string} name
-   *           The name of a plugin.
-   *
-   * @returns  {Function|undefined}
-   *           The plugin (or `undefined`).
-   */
-
-
-  Plugin.getPlugin = getPlugin;
-  /**
-   * The name of the base plugin class as it is registered.
-   *
-   * @type {string}
-   */
-
-  Plugin.BASE_PLUGIN_NAME = BASE_PLUGIN_NAME;
-  Plugin.registerPlugin(BASE_PLUGIN_NAME, Plugin);
-  /**
-   * Documented in player.js
-   *
-   * @ignore
-   */
-
-  Player.prototype.usingPlugin = function (name) {
-    return !!this[PLUGIN_CACHE_KEY] && this[PLUGIN_CACHE_KEY][name] === true;
-  };
-  /**
-   * Documented in player.js
-   *
-   * @ignore
-   */
-
-
-  Player.prototype.hasPlugin = function (name) {
-    return !!pluginExists(name);
-  };
-  /**
-   * Signals that a plugin is about to be set up on a player.
-   *
-   * @event    Player#beforepluginsetup
-   * @type     {Plugin~PluginEventHash}
-   */
-
-  /**
-   * Signals that a plugin is about to be set up on a player - by name. The name
-   * is the name of the plugin.
-   *
-   * @event    Player#beforepluginsetup:$name
-   * @type     {Plugin~PluginEventHash}
-   */
-
-  /**
-   * Signals that a plugin has just been set up on a player.
-   *
-   * @event    Player#pluginsetup
-   * @type     {Plugin~PluginEventHash}
-   */
-
-  /**
-   * Signals that a plugin has just been set up on a player - by name. The name
-   * is the name of the plugin.
-   *
-   * @event    Player#pluginsetup:$name
-   * @type     {Plugin~PluginEventHash}
-   */
-
-  /**
-   * @typedef  {Object} Plugin~PluginEventHash
-   *
-   * @property {string} instance
-   *           For basic plugins, the return value of the plugin function. For
-   *           advanced plugins, the plugin instance on which the event is fired.
-   *
-   * @property {string} name
-   *           The name of the plugin.
-   *
-   * @property {string} plugin
-   *           For basic plugins, the plugin function. For advanced plugins, the
-   *           plugin class/constructor.
-   */
-
-  function _inherits(subClass, superClass) {
-    if (typeof superClass !== "function" && superClass !== null) {
-      throw new TypeError("Super expression must either be null or a function");
-    }
-
-    subClass.prototype = Object.create(superClass && superClass.prototype, {
-      constructor: {
-        value: subClass,
-        writable: true,
-        configurable: true
-      }
-    });
-    if (superClass) setPrototypeOf(subClass, superClass);
-  }
-
-  var inherits = _inherits;
-
-  /**
-   * @file extend.js
-   * @module extend
-   */
-  /**
-   * Used to subclass an existing class by emulating ES subclassing using the
-   * `extends` keyword.
-   *
-   * @function
-   * @example
-   * var MyComponent = videojs.extend(videojs.getComponent('Component'), {
-   *   myCustomMethod: function() {
-   *     // Do things in my method.
-   *   }
-   * });
-   *
-   * @param    {Function} superClass
-   *           The class to inherit from
-   *
-   * @param    {Object}   [subClassMethods={}]
-   *           Methods of the new class
-   *
-   * @return   {Function}
-   *           The new class with subClassMethods that inherited superClass.
-   */
-
-  var extend = function extend(superClass, subClassMethods) {
-    if (subClassMethods === void 0) {
-      subClassMethods = {};
-    }
-
-    var subClass = function subClass() {
-      superClass.apply(this, arguments);
+    /**
+     * Triggers a pair of plugin setup events.
+     *
+     * @private
+     * @param  {Player} player
+     *         A Video.js player instance.
+     *
+     * @param  {Plugin~PluginEventHash} hash
+     *         A plugin event hash.
+     *
+     * @param  {boolean} [before]
+     *         If true, prefixes the event name with "before". In other words,
+     *         use this to trigger "beforepluginsetup" instead of "pluginsetup".
+     */
+    const triggerSetupEvent = (player, hash, before) => {
+        const eventName = (before ? 'before' : '') + 'pluginsetup';
+        player.trigger(eventName, hash);
+        player.trigger(eventName + ':' + hash.name, hash);
     };
 
-    var methods = {};
-
-    if (typeof subClassMethods === 'object') {
-      if (subClassMethods.constructor !== Object.prototype.constructor) {
-        subClass = subClassMethods.constructor;
-      }
-
-      methods = subClassMethods;
-    } else if (typeof subClassMethods === 'function') {
-      subClass = subClassMethods;
-    }
-
-    inherits(subClass, superClass); // this is needed for backward-compatibility and node compatibility.
-
-
-    if (superClass) {
-      subClass.super_ = superClass;
-    } // Extend subObj's prototype with functions and other properties from props
-
-
-    for (var name in methods) {
-      if (methods.hasOwnProperty(name)) {
-        subClass.prototype[name] = methods[name];
-      }
-    }
-
-    return subClass;
-  };
-
-  /**
-   * @file video.js
-   * @module videojs
-   */
-  /**
-   * Normalize an `id` value by trimming off a leading `#`
-   *
-   * @private
-   * @param   {string} id
-   *          A string, maybe with a leading `#`.
-   *
-   * @return {string}
-   *          The string, without any leading `#`.
-   */
-
-  var normalizeId = function normalizeId(id) {
-    return id.indexOf('#') === 0 ? id.slice(1) : id;
-  };
-  /**
-   * The `videojs()` function doubles as the main function for users to create a
-   * {@link Player} instance as well as the main library namespace.
-   *
-   * It can also be used as a getter for a pre-existing {@link Player} instance.
-   * However, we _strongly_ recommend using `videojs.getPlayer()` for this
-   * purpose because it avoids any potential for unintended initialization.
-   *
-   * Due to [limitations](https://github.com/jsdoc3/jsdoc/issues/955#issuecomment-313829149)
-   * of our JSDoc template, we cannot properly document this as both a function
-   * and a namespace, so its function signature is documented here.
-   *
-   * #### Arguments
-   * ##### id
-   * string|Element, **required**
-   *
-   * Video element or video element ID.
-   *
-   * ##### options
-   * Object, optional
-   *
-   * Options object for providing settings.
-   * See: [Options Guide](https://docs.videojs.com/tutorial-options.html).
-   *
-   * ##### ready
-   * {@link Component~ReadyCallback}, optional
-   *
-   * A function to be called when the {@link Player} and {@link Tech} are ready.
-   *
-   * #### Return Value
-   *
-   * The `videojs()` function returns a {@link Player} instance.
-   *
-   * @namespace
-   *
-   * @borrows AudioTrack as AudioTrack
-   * @borrows Component.getComponent as getComponent
-   * @borrows module:computed-style~computedStyle as computedStyle
-   * @borrows module:events.on as on
-   * @borrows module:events.one as one
-   * @borrows module:events.off as off
-   * @borrows module:events.trigger as trigger
-   * @borrows EventTarget as EventTarget
-   * @borrows module:extend~extend as extend
-   * @borrows module:fn.bind as bind
-   * @borrows module:format-time.formatTime as formatTime
-   * @borrows module:format-time.resetFormatTime as resetFormatTime
-   * @borrows module:format-time.setFormatTime as setFormatTime
-   * @borrows module:merge-options.mergeOptions as mergeOptions
-   * @borrows module:middleware.use as use
-   * @borrows Player.players as players
-   * @borrows Plugin.registerPlugin as registerPlugin
-   * @borrows Plugin.deregisterPlugin as deregisterPlugin
-   * @borrows Plugin.getPlugins as getPlugins
-   * @borrows Plugin.getPlugin as getPlugin
-   * @borrows Plugin.getPluginVersion as getPluginVersion
-   * @borrows Tech.getTech as getTech
-   * @borrows Tech.registerTech as registerTech
-   * @borrows TextTrack as TextTrack
-   * @borrows module:time-ranges.createTimeRanges as createTimeRange
-   * @borrows module:time-ranges.createTimeRanges as createTimeRanges
-   * @borrows module:url.isCrossOrigin as isCrossOrigin
-   * @borrows module:url.parseUrl as parseUrl
-   * @borrows VideoTrack as VideoTrack
-   *
-   * @param  {string|Element} id
-   *         Video element or video element ID.
-   *
-   * @param  {Object} [options]
-   *         Options object for providing settings.
-   *         See: [Options Guide](https://docs.videojs.com/tutorial-options.html).
-   *
-   * @param  {Component~ReadyCallback} [ready]
-   *         A function to be called when the {@link Player} and {@link Tech} are
-   *         ready.
-   *
-   * @return {Player}
-   *         The `videojs()` function returns a {@link Player|Player} instance.
-   */
-
-
-  function videojs(id, options, ready) {
-    var player = videojs.getPlayer(id);
-
-    if (player) {
-      if (options) {
-        log$1.warn("Player \"" + id + "\" is already initialised. Options will not be applied.");
-      }
-
-      if (ready) {
-        player.ready(ready);
-      }
-
-      return player;
-    }
-
-    var el = typeof id === 'string' ? $('#' + normalizeId(id)) : id;
-
-    if (!isEl(el)) {
-      throw new TypeError('The element or ID supplied is not valid. (videojs)');
-    } // document.body.contains(el) will only check if el is contained within that one document.
-    // This causes problems for elements in iframes.
-    // Instead, use the element's ownerDocument instead of the global document.
-    // This will make sure that the element is indeed in the dom of that document.
-    // Additionally, check that the document in question has a default view.
-    // If the document is no longer attached to the dom, the defaultView of the document will be null.
-
-
-    if (!el.ownerDocument.defaultView || !el.ownerDocument.body.contains(el)) {
-      log$1.warn('The element supplied is not included in the DOM');
-    }
-
-    options = options || {}; // Store a copy of the el before modification, if it is to be restored in destroy()
-    // If div ingest, store the parent div
-
-    if (options.restoreEl === true) {
-      options.restoreEl = (el.parentNode && el.parentNode.hasAttribute('data-vjs-player') ? el.parentNode : el).cloneNode(true);
-    }
-
-    hooks('beforesetup').forEach(function (hookFunction) {
-      var opts = hookFunction(el, mergeOptions$3(options));
-
-      if (!isObject$1(opts) || Array.isArray(opts)) {
-        log$1.error('please return an object in beforesetup hooks');
-        return;
-      }
-
-      options = mergeOptions$3(options, opts);
-    }); // We get the current "Player" component here in case an integration has
-    // replaced it with a custom player.
-
-    var PlayerComponent = Component$1.getComponent('Player');
-    player = new PlayerComponent(el, options, ready);
-    hooks('setup').forEach(function (hookFunction) {
-      return hookFunction(player);
-    });
-    return player;
-  }
-
-  videojs.hooks_ = hooks_;
-  videojs.hooks = hooks;
-  videojs.hook = hook;
-  videojs.hookOnce = hookOnce;
-  videojs.removeHook = removeHook; // Add default styles
-
-  if (window.VIDEOJS_NO_DYNAMIC_STYLE !== true && isReal()) {
-    var style = $('.vjs-styles-defaults');
-
-    if (!style) {
-      style = createStyleElement('vjs-styles-defaults');
-      var head = $('head');
-
-      if (head) {
-        head.insertBefore(style, head.firstChild);
-      }
-
-      setTextContent(style, "\n      .video-js {\n        width: 300px;\n        height: 150px;\n      }\n\n      .vjs-fluid:not(.vjs-audio-only-mode) {\n        padding-top: 56.25%\n      }\n    ");
-    }
-  } // Run Auto-load players
-  // You have to wait at least once in case this script is loaded after your
-  // video in the DOM (weird behavior only with minified version)
-
-
-  autoSetupTimeout(1, videojs);
-  /**
-   * Current Video.js version. Follows [semantic versioning](https://semver.org/).
-   *
-   * @type {string}
-   */
-
-  videojs.VERSION = version$5;
-  /**
-   * The global options object. These are the settings that take effect
-   * if no overrides are specified when the player is created.
-   *
-   * @type {Object}
-   */
-
-  videojs.options = Player.prototype.options_;
-  /**
-   * Get an object with the currently created players, keyed by player ID
-   *
-   * @return {Object}
-   *         The created players
-   */
-
-  videojs.getPlayers = function () {
-    return Player.players;
-  };
-  /**
-   * Get a single player based on an ID or DOM element.
-   *
-   * This is useful if you want to check if an element or ID has an associated
-   * Video.js player, but not create one if it doesn't.
-   *
-   * @param   {string|Element} id
-   *          An HTML element - `<video>`, `<audio>`, or `<video-js>` -
-   *          or a string matching the `id` of such an element.
-   *
-   * @return {Player|undefined}
-   *          A player instance or `undefined` if there is no player instance
-   *          matching the argument.
-   */
-
-
-  videojs.getPlayer = function (id) {
-    var players = Player.players;
-    var tag;
-
-    if (typeof id === 'string') {
-      var nId = normalizeId(id);
-      var player = players[nId];
-
-      if (player) {
-        return player;
-      }
-
-      tag = $('#' + nId);
-    } else {
-      tag = id;
-    }
-
-    if (isEl(tag)) {
-      var _tag = tag,
-          _player = _tag.player,
-          playerId = _tag.playerId; // Element may have a `player` property referring to an already created
-      // player instance. If so, return that.
-
-      if (_player || players[playerId]) {
-        return _player || players[playerId];
-      }
-    }
-  };
-  /**
-   * Returns an array of all current players.
-   *
-   * @return {Array}
-   *         An array of all players. The array will be in the order that
-   *         `Object.keys` provides, which could potentially vary between
-   *         JavaScript engines.
-   *
-   */
-
-
-  videojs.getAllPlayers = function () {
-    return (// Disposed players leave a key with a `null` value, so we need to make sure
-      // we filter those out.
-      Object.keys(Player.players).map(function (k) {
-        return Player.players[k];
-      }).filter(Boolean)
-    );
-  };
-
-  videojs.players = Player.players;
-  videojs.getComponent = Component$1.getComponent;
-  /**
-   * Register a component so it can referred to by name. Used when adding to other
-   * components, either through addChild `component.addChild('myComponent')` or through
-   * default children options  `{ children: ['myComponent'] }`.
-   *
-   * > NOTE: You could also just initialize the component before adding.
-   * `component.addChild(new MyComponent());`
-   *
-   * @param {string} name
-   *        The class name of the component
-   *
-   * @param {Component} comp
-   *        The component class
-   *
-   * @return {Component}
-   *         The newly registered component
-   */
-
-  videojs.registerComponent = function (name, comp) {
-    if (Tech.isTech(comp)) {
-      log$1.warn("The " + name + " tech was registered as a component. It should instead be registered using videojs.registerTech(name, tech)");
-    }
-
-    Component$1.registerComponent.call(Component$1, name, comp);
-  };
-
-  videojs.getTech = Tech.getTech;
-  videojs.registerTech = Tech.registerTech;
-  videojs.use = use;
-  /**
-   * An object that can be returned by a middleware to signify
-   * that the middleware is being terminated.
-   *
-   * @type {object}
-   * @property {object} middleware.TERMINATOR
-   */
-
-  Object.defineProperty(videojs, 'middleware', {
-    value: {},
-    writeable: false,
-    enumerable: true
-  });
-  Object.defineProperty(videojs.middleware, 'TERMINATOR', {
-    value: TERMINATOR,
-    writeable: false,
-    enumerable: true
-  });
-  /**
-   * A reference to the {@link module:browser|browser utility module} as an object.
-   *
-   * @type {Object}
-   * @see  {@link module:browser|browser}
-   */
-
-  videojs.browser = browser;
-  /**
-   * Use {@link module:browser.TOUCH_ENABLED|browser.TOUCH_ENABLED} instead; only
-   * included for backward-compatibility with 4.x.
-   *
-   * @deprecated Since version 5.0, use {@link module:browser.TOUCH_ENABLED|browser.TOUCH_ENABLED instead.
-   * @type {boolean}
-   */
-
-  videojs.TOUCH_ENABLED = TOUCH_ENABLED;
-  videojs.extend = extend;
-  videojs.mergeOptions = mergeOptions$3;
-  videojs.bind = bind;
-  videojs.registerPlugin = Plugin.registerPlugin;
-  videojs.deregisterPlugin = Plugin.deregisterPlugin;
-  /**
-   * Deprecated method to register a plugin with Video.js
-   *
-   * @deprecated videojs.plugin() is deprecated; use videojs.registerPlugin() instead
-   *
-   * @param {string} name
-   *        The plugin name
-   *
-   * @param {Plugin|Function} plugin
-   *         The plugin sub-class or function
-   */
-
-  videojs.plugin = function (name, plugin) {
-    log$1.warn('videojs.plugin() is deprecated; use videojs.registerPlugin() instead');
-    return Plugin.registerPlugin(name, plugin);
-  };
-
-  videojs.getPlugins = Plugin.getPlugins;
-  videojs.getPlugin = Plugin.getPlugin;
-  videojs.getPluginVersion = Plugin.getPluginVersion;
-  /**
-   * Adding languages so that they're available to all players.
-   * Example: `videojs.addLanguage('es', { 'Hello': 'Hola' });`
-   *
-   * @param {string} code
-   *        The language code or dictionary property
-   *
-   * @param {Object} data
-   *        The data values to be translated
-   *
-   * @return {Object}
-   *         The resulting language dictionary object
-   */
-
-  videojs.addLanguage = function (code, data) {
-    var _mergeOptions;
-
-    code = ('' + code).toLowerCase();
-    videojs.options.languages = mergeOptions$3(videojs.options.languages, (_mergeOptions = {}, _mergeOptions[code] = data, _mergeOptions));
-    return videojs.options.languages[code];
-  };
-  /**
-   * A reference to the {@link module:log|log utility module} as an object.
-   *
-   * @type {Function}
-   * @see  {@link module:log|log}
-   */
-
-
-  videojs.log = log$1;
-  videojs.createLogger = createLogger;
-  videojs.createTimeRange = videojs.createTimeRanges = createTimeRanges;
-  videojs.formatTime = formatTime;
-  videojs.setFormatTime = setFormatTime;
-  videojs.resetFormatTime = resetFormatTime;
-  videojs.parseUrl = parseUrl;
-  videojs.isCrossOrigin = isCrossOrigin;
-  videojs.EventTarget = EventTarget$2;
-  videojs.on = on;
-  videojs.one = one;
-  videojs.off = off;
-  videojs.trigger = trigger;
-  /**
-   * A cross-browser XMLHttpRequest wrapper.
-   *
-   * @function
-   * @param    {Object} options
-   *           Settings for the request.
-   *
-   * @return   {XMLHttpRequest|XDomainRequest}
-   *           The request object.
-   *
-   * @see      https://github.com/Raynos/xhr
-   */
-
-  videojs.xhr = lib;
-  videojs.TextTrack = TextTrack;
-  videojs.AudioTrack = AudioTrack;
-  videojs.VideoTrack = VideoTrack;
-  ['isEl', 'isTextNode', 'createEl', 'hasClass', 'addClass', 'removeClass', 'toggleClass', 'setAttributes', 'getAttributes', 'emptyEl', 'appendContent', 'insertContent'].forEach(function (k) {
-    videojs[k] = function () {
-      log$1.warn("videojs." + k + "() is deprecated; use videojs.dom." + k + "() instead");
-      return Dom[k].apply(null, arguments);
-    };
-  });
-  videojs.computedStyle = computedStyle;
-  /**
-   * A reference to the {@link module:dom|DOM utility module} as an object.
-   *
-   * @type {Object}
-   * @see  {@link module:dom|dom}
-   */
-
-  videojs.dom = Dom;
-  /**
-   * A reference to the {@link module:url|URL utility module} as an object.
-   *
-   * @type {Object}
-   * @see  {@link module:url|url}
-   */
-
-  videojs.url = Url;
-  videojs.defineLazyProperty = defineLazyProperty; // Adding less ambiguous text for fullscreen button.
-  // In a major update this could become the default text and key.
-
-  videojs.addLanguage('en', {
-    'Non-Fullscreen': 'Exit Fullscreen'
-  });
-
-  var urlToolkit = createCommonjsModule(function (module, exports) {
-    // see https://tools.ietf.org/html/rfc1808
-    (function (root) {
-      var URL_REGEX = /^((?:[a-zA-Z0-9+\-.]+:)?)(\/\/[^\/?#]*)?((?:[^\/?#]*\/)*[^;?#]*)?(;[^?#]*)?(\?[^#]*)?(#[^]*)?$/;
-      var FIRST_SEGMENT_REGEX = /^([^\/?#]*)([^]*)$/;
-      var SLASH_DOT_REGEX = /(?:\/|^)\.(?=\/)/g;
-      var SLASH_DOT_DOT_REGEX = /(?:\/|^)\.\.\/(?!\.\.\/)[^\/]*(?=\/)/g;
-      var URLToolkit = {
-        // If opts.alwaysNormalize is true then the path will always be normalized even when it starts with / or //
-        // E.g
-        // With opts.alwaysNormalize = false (default, spec compliant)
-        // http://a.com/b/cd + /e/f/../g => http://a.com/e/f/../g
-        // With opts.alwaysNormalize = true (not spec compliant)
-        // http://a.com/b/cd + /e/f/../g => http://a.com/e/g
-        buildAbsoluteURL: function buildAbsoluteURL(baseURL, relativeURL, opts) {
-          opts = opts || {}; // remove any remaining space and CRLF
-
-          baseURL = baseURL.trim();
-          relativeURL = relativeURL.trim();
-
-          if (!relativeURL) {
-            // 2a) If the embedded URL is entirely empty, it inherits the
-            // entire base URL (i.e., is set equal to the base URL)
-            // and we are done.
-            if (!opts.alwaysNormalize) {
-              return baseURL;
-            }
-
-            var basePartsForNormalise = URLToolkit.parseURL(baseURL);
-
-            if (!basePartsForNormalise) {
-              throw new Error('Error trying to parse base URL.');
-            }
-
-            basePartsForNormalise.path = URLToolkit.normalizePath(basePartsForNormalise.path);
-            return URLToolkit.buildURLFromParts(basePartsForNormalise);
-          }
-
-          var relativeParts = URLToolkit.parseURL(relativeURL);
-
-          if (!relativeParts) {
-            throw new Error('Error trying to parse relative URL.');
-          }
-
-          if (relativeParts.scheme) {
-            // 2b) If the embedded URL starts with a scheme name, it is
-            // interpreted as an absolute URL and we are done.
-            if (!opts.alwaysNormalize) {
-              return relativeURL;
-            }
-
-            relativeParts.path = URLToolkit.normalizePath(relativeParts.path);
-            return URLToolkit.buildURLFromParts(relativeParts);
-          }
-
-          var baseParts = URLToolkit.parseURL(baseURL);
-
-          if (!baseParts) {
-            throw new Error('Error trying to parse base URL.');
-          }
-
-          if (!baseParts.netLoc && baseParts.path && baseParts.path[0] !== '/') {
-            // If netLoc missing and path doesn't start with '/', assume everthing before the first '/' is the netLoc
-            // This causes 'example.com/a' to be handled as '//example.com/a' instead of '/example.com/a'
-            var pathParts = FIRST_SEGMENT_REGEX.exec(baseParts.path);
-            baseParts.netLoc = pathParts[1];
-            baseParts.path = pathParts[2];
-          }
-
-          if (baseParts.netLoc && !baseParts.path) {
-            baseParts.path = '/';
-          }
-
-          var builtParts = {
-            // 2c) Otherwise, the embedded URL inherits the scheme of
-            // the base URL.
-            scheme: baseParts.scheme,
-            netLoc: relativeParts.netLoc,
-            path: null,
-            params: relativeParts.params,
-            query: relativeParts.query,
-            fragment: relativeParts.fragment
-          };
-
-          if (!relativeParts.netLoc) {
-            // 3) If the embedded URL's <net_loc> is non-empty, we skip to
-            // Step 7.  Otherwise, the embedded URL inherits the <net_loc>
-            // (if any) of the base URL.
-            builtParts.netLoc = baseParts.netLoc; // 4) If the embedded URL path is preceded by a slash "/", the
-            // path is not relative and we skip to Step 7.
-
-            if (relativeParts.path[0] !== '/') {
-              if (!relativeParts.path) {
-                // 5) If the embedded URL path is empty (and not preceded by a
-                // slash), then the embedded URL inherits the base URL path
-                builtParts.path = baseParts.path; // 5a) if the embedded URL's <params> is non-empty, we skip to
-                // step 7; otherwise, it inherits the <params> of the base
-                // URL (if any) and
-
-                if (!relativeParts.params) {
-                  builtParts.params = baseParts.params; // 5b) if the embedded URL's <query> is non-empty, we skip to
-                  // step 7; otherwise, it inherits the <query> of the base
-                  // URL (if any) and we skip to step 7.
-
-                  if (!relativeParts.query) {
-                    builtParts.query = baseParts.query;
-                  }
-                }
-              } else {
-                // 6) The last segment of the base URL's path (anything
-                // following the rightmost slash "/", or the entire path if no
-                // slash is present) is removed and the embedded URL's path is
-                // appended in its place.
-                var baseURLPath = baseParts.path;
-                var newPath = baseURLPath.substring(0, baseURLPath.lastIndexOf('/') + 1) + relativeParts.path;
-                builtParts.path = URLToolkit.normalizePath(newPath);
-              }
-            }
-          }
-
-          if (builtParts.path === null) {
-            builtParts.path = opts.alwaysNormalize ? URLToolkit.normalizePath(relativeParts.path) : relativeParts.path;
-          }
-
-          return URLToolkit.buildURLFromParts(builtParts);
-        },
-        parseURL: function parseURL(url) {
-          var parts = URL_REGEX.exec(url);
-
-          if (!parts) {
-            return null;
-          }
-
-          return {
-            scheme: parts[1] || '',
-            netLoc: parts[2] || '',
-            path: parts[3] || '',
-            params: parts[4] || '',
-            query: parts[5] || '',
-            fragment: parts[6] || ''
-          };
-        },
-        normalizePath: function normalizePath(path) {
-          // The following operations are
-          // then applied, in order, to the new path:
-          // 6a) All occurrences of "./", where "." is a complete path
-          // segment, are removed.
-          // 6b) If the path ends with "." as a complete path segment,
-          // that "." is removed.
-          path = path.split('').reverse().join('').replace(SLASH_DOT_REGEX, ''); // 6c) All occurrences of "<segment>/../", where <segment> is a
-          // complete path segment not equal to "..", are removed.
-          // Removal of these path segments is performed iteratively,
-          // removing the leftmost matching pattern on each iteration,
-          // until no matching pattern remains.
-          // 6d) If the path ends with "<segment>/..", where <segment> is a
-          // complete path segment not equal to "..", that
-          // "<segment>/.." is removed.
-
-          while (path.length !== (path = path.replace(SLASH_DOT_DOT_REGEX, '')).length) {}
-
-          return path.split('').reverse().join('');
-        },
-        buildURLFromParts: function buildURLFromParts(parts) {
-          return parts.scheme + parts.netLoc + parts.path + parts.params + parts.query + parts.fragment;
-        }
-      };
-      module.exports = URLToolkit;
-    })();
-  });
-
-  var DEFAULT_LOCATION$1 = 'http://example.com';
-
-  var resolveUrl$2 = function resolveUrl(baseUrl, relativeUrl) {
-    // return early if we don't need to resolve
-    if (/^[a-z]+:/i.test(relativeUrl)) {
-      return relativeUrl;
-    } // if baseUrl is a data URI, ignore it and resolve everything relative to window.location
-
-
-    if (/^data:/.test(baseUrl)) {
-      baseUrl = window.location && window.location.href || '';
-    } // IE11 supports URL but not the URL constructor
-    // feature detect the behavior we want
-
-
-    var nativeURL = typeof window.URL === 'function';
-    var protocolLess = /^\/\//.test(baseUrl); // remove location if window.location isn't available (i.e. we're in node)
-    // and if baseUrl isn't an absolute url
-
-    var removeLocation = !window.location && !/\/\//i.test(baseUrl); // if the base URL is relative then combine with the current location
-
-    if (nativeURL) {
-      baseUrl = new window.URL(baseUrl, window.location || DEFAULT_LOCATION$1);
-    } else if (!/\/\//i.test(baseUrl)) {
-      baseUrl = urlToolkit.buildAbsoluteURL(window.location && window.location.href || '', baseUrl);
-    }
-
-    if (nativeURL) {
-      var newUrl = new URL(relativeUrl, baseUrl); // if we're a protocol-less url, remove the protocol
-      // and if we're location-less, remove the location
-      // otherwise, return the url unmodified
-
-      if (removeLocation) {
-        return newUrl.href.slice(DEFAULT_LOCATION$1.length);
-      } else if (protocolLess) {
-        return newUrl.href.slice(newUrl.protocol.length);
-      }
-
-      return newUrl.href;
-    }
-
-    return urlToolkit.buildAbsoluteURL(baseUrl, relativeUrl);
-  };
-
-  /**
-   * @file stream.js
-   */
-
-  /**
-   * A lightweight readable stream implemention that handles event dispatching.
-   *
-   * @class Stream
-   */
-  var Stream = /*#__PURE__*/function () {
-    function Stream() {
-      this.listeners = {};
-    }
     /**
-     * Add a listener for a specified event type.
+     * Takes a basic plugin function and returns a wrapper function which marks
+     * on the player that the plugin has been activated.
      *
-     * @param {string} type the event name
-     * @param {Function} listener the callback to be invoked when an event of
-     * the specified type occurs
-     */
-
-
-    var _proto = Stream.prototype;
-
-    _proto.on = function on(type, listener) {
-      if (!this.listeners[type]) {
-        this.listeners[type] = [];
-      }
-
-      this.listeners[type].push(listener);
-    }
-    /**
-     * Remove a listener for a specified event type.
+     * @private
+     * @param   {string} name
+     *          The name of the plugin.
      *
-     * @param {string} type the event name
-     * @param {Function} listener  a function previously registered for this
-     * type of event through `on`
-     * @return {boolean} if we could turn it off or not
-     */
-    ;
-
-    _proto.off = function off(type, listener) {
-      if (!this.listeners[type]) {
-        return false;
-      }
-
-      var index = this.listeners[type].indexOf(listener); // TODO: which is better?
-      // In Video.js we slice listener functions
-      // on trigger so that it does not mess up the order
-      // while we loop through.
-      //
-      // Here we slice on off so that the loop in trigger
-      // can continue using it's old reference to loop without
-      // messing up the order.
-
-      this.listeners[type] = this.listeners[type].slice(0);
-      this.listeners[type].splice(index, 1);
-      return index > -1;
-    }
-    /**
-     * Trigger an event of the specified type on this stream. Any additional
-     * arguments to this function are passed as parameters to event listeners.
+     * @param   {Function} plugin
+     *          The basic plugin.
      *
-     * @param {string} type the event name
+     * @return {Function}
+     *          A wrapper function for the given plugin.
      */
-    ;
-
-    _proto.trigger = function trigger(type) {
-      var callbacks = this.listeners[type];
-
-      if (!callbacks) {
-        return;
-      } // Slicing the arguments on every invocation of this method
-      // can add a significant amount of overhead. Avoid the
-      // intermediate object creation for the common case of a
-      // single callback argument
-
-
-      if (arguments.length === 2) {
-        var length = callbacks.length;
-
-        for (var i = 0; i < length; ++i) {
-          callbacks[i].call(this, arguments[1]);
-        }
-      } else {
-        var args = Array.prototype.slice.call(arguments, 1);
-        var _length = callbacks.length;
-
-        for (var _i = 0; _i < _length; ++_i) {
-          callbacks[_i].apply(this, args);
-        }
-      }
-    }
-    /**
-     * Destroys the stream and cleans up.
-     */
-    ;
-
-    _proto.dispose = function dispose() {
-      this.listeners = {};
-    }
-    /**
-     * Forwards all `data` events on this stream to the destination stream. The
-     * destination stream should provide a method `push` to receive the data
-     * events as they arrive.
-     *
-     * @param {Stream} destination the stream that will receive all `data` events
-     * @see http://nodejs.org/api/stream.html#stream_readable_pipe_destination_options
-     */
-    ;
-
-    _proto.pipe = function pipe(destination) {
-      this.on('data', function (data) {
-        destination.push(data);
-      });
-    };
-
-    return Stream;
-  }();
-
-  var atob$1 = function atob(s) {
-    return window.atob ? window.atob(s) : Buffer.from(s, 'base64').toString('binary');
-  };
-
-  function decodeB64ToUint8Array$1(b64Text) {
-    var decodedString = atob$1(b64Text);
-    var array = new Uint8Array(decodedString.length);
-
-    for (var i = 0; i < decodedString.length; i++) {
-      array[i] = decodedString.charCodeAt(i);
-    }
-
-    return array;
-  }
-
-  /*! @name m3u8-parser @version 4.7.1 @license Apache-2.0 */
-  /**
-   * A stream that buffers string input and generates a `data` event for each
-   * line.
-   *
-   * @class LineStream
-   * @extends Stream
-   */
-
-  var LineStream = /*#__PURE__*/function (_Stream) {
-    inheritsLoose(LineStream, _Stream);
-
-    function LineStream() {
-      var _this;
-
-      _this = _Stream.call(this) || this;
-      _this.buffer = '';
-      return _this;
-    }
-    /**
-     * Add new data to be parsed.
-     *
-     * @param {string} data the text to process
-     */
-
-
-    var _proto = LineStream.prototype;
-
-    _proto.push = function push(data) {
-      var nextNewline;
-      this.buffer += data;
-      nextNewline = this.buffer.indexOf('\n');
-
-      for (; nextNewline > -1; nextNewline = this.buffer.indexOf('\n')) {
-        this.trigger('data', this.buffer.substring(0, nextNewline));
-        this.buffer = this.buffer.substring(nextNewline + 1);
-      }
-    };
-
-    return LineStream;
-  }(Stream);
-
-  var TAB = String.fromCharCode(0x09);
-
-  var parseByterange = function parseByterange(byterangeString) {
-    // optionally match and capture 0+ digits before `@`
-    // optionally match and capture 0+ digits after `@`
-    var match = /([0-9.]*)?@?([0-9.]*)?/.exec(byterangeString || '');
-    var result = {};
-
-    if (match[1]) {
-      result.length = parseInt(match[1], 10);
-    }
-
-    if (match[2]) {
-      result.offset = parseInt(match[2], 10);
-    }
-
-    return result;
-  };
-  /**
-   * "forgiving" attribute list psuedo-grammar:
-   * attributes -> keyvalue (',' keyvalue)*
-   * keyvalue   -> key '=' value
-   * key        -> [^=]*
-   * value      -> '"' [^"]* '"' | [^,]*
-   */
-
-
-  var attributeSeparator = function attributeSeparator() {
-    var key = '[^=]*';
-    var value = '"[^"]*"|[^,]*';
-    var keyvalue = '(?:' + key + ')=(?:' + value + ')';
-    return new RegExp('(?:^|,)(' + keyvalue + ')');
-  };
-  /**
-   * Parse attributes from a line given the separator
-   *
-   * @param {string} attributes the attribute line to parse
-   */
-
-
-  var parseAttributes$1 = function parseAttributes(attributes) {
-    // split the string using attributes as the separator
-    var attrs = attributes.split(attributeSeparator());
-    var result = {};
-    var i = attrs.length;
-    var attr;
-
-    while (i--) {
-      // filter out unmatched portions of the string
-      if (attrs[i] === '') {
-        continue;
-      } // split the key and value
-
-
-      attr = /([^=]*)=(.*)/.exec(attrs[i]).slice(1); // trim whitespace and remove optional quotes around the value
-
-      attr[0] = attr[0].replace(/^\s+|\s+$/g, '');
-      attr[1] = attr[1].replace(/^\s+|\s+$/g, '');
-      attr[1] = attr[1].replace(/^['"](.*)['"]$/g, '$1');
-      result[attr[0]] = attr[1];
-    }
-
-    return result;
-  };
-  /**
-   * A line-level M3U8 parser event stream. It expects to receive input one
-   * line at a time and performs a context-free parse of its contents. A stream
-   * interpretation of a manifest can be useful if the manifest is expected to
-   * be too large to fit comfortably into memory or the entirety of the input
-   * is not immediately available. Otherwise, it's probably much easier to work
-   * with a regular `Parser` object.
-   *
-   * Produces `data` events with an object that captures the parser's
-   * interpretation of the input. That object has a property `tag` that is one
-   * of `uri`, `comment`, or `tag`. URIs only have a single additional
-   * property, `line`, which captures the entirety of the input without
-   * interpretation. Comments similarly have a single additional property
-   * `text` which is the input without the leading `#`.
-   *
-   * Tags always have a property `tagType` which is the lower-cased version of
-   * the M3U8 directive without the `#EXT` or `#EXT-X-` prefix. For instance,
-   * `#EXT-X-MEDIA-SEQUENCE` becomes `media-sequence` when parsed. Unrecognized
-   * tags are given the tag type `unknown` and a single additional property
-   * `data` with the remainder of the input.
-   *
-   * @class ParseStream
-   * @extends Stream
-   */
-
-
-  var ParseStream = /*#__PURE__*/function (_Stream) {
-    inheritsLoose(ParseStream, _Stream);
-
-    function ParseStream() {
-      var _this;
-
-      _this = _Stream.call(this) || this;
-      _this.customParsers = [];
-      _this.tagMappers = [];
-      return _this;
-    }
-    /**
-     * Parses an additional line of input.
-     *
-     * @param {string} line a single line of an M3U8 file to parse
-     */
-
-
-    var _proto = ParseStream.prototype;
-
-    _proto.push = function push(line) {
-      var _this2 = this;
-
-      var match;
-      var event; // strip whitespace
-
-      line = line.trim();
-
-      if (line.length === 0) {
-        // ignore empty lines
-        return;
-      } // URIs
-
-
-      if (line[0] !== '#') {
-        this.trigger('data', {
-          type: 'uri',
-          uri: line
-        });
-        return;
-      } // map tags
-
-
-      var newLines = this.tagMappers.reduce(function (acc, mapper) {
-        var mappedLine = mapper(line); // skip if unchanged
-
-        if (mappedLine === line) {
-          return acc;
-        }
-
-        return acc.concat([mappedLine]);
-      }, [line]);
-      newLines.forEach(function (newLine) {
-        for (var i = 0; i < _this2.customParsers.length; i++) {
-          if (_this2.customParsers[i].call(_this2, newLine)) {
-            return;
-          }
-        } // Comments
-
-
-        if (newLine.indexOf('#EXT') !== 0) {
-          _this2.trigger('data', {
-            type: 'comment',
-            text: newLine.slice(1)
-          });
-
-          return;
-        } // strip off any carriage returns here so the regex matching
-        // doesn't have to account for them.
-
-
-        newLine = newLine.replace('\r', ''); // Tags
-
-        match = /^#EXTM3U/.exec(newLine);
-
-        if (match) {
-          _this2.trigger('data', {
-            type: 'tag',
-            tagType: 'm3u'
-          });
-
-          return;
-        }
-
-        match = /^#EXTINF:?([0-9\.]*)?,?(.*)?$/.exec(newLine);
-
-        if (match) {
-          event = {
-            type: 'tag',
-            tagType: 'inf'
-          };
-
-          if (match[1]) {
-            event.duration = parseFloat(match[1]);
-          }
-
-          if (match[2]) {
-            event.title = match[2];
-          }
-
-          _this2.trigger('data', event);
-
-          return;
-        }
-
-        match = /^#EXT-X-TARGETDURATION:?([0-9.]*)?/.exec(newLine);
-
-        if (match) {
-          event = {
-            type: 'tag',
-            tagType: 'targetduration'
-          };
-
-          if (match[1]) {
-            event.duration = parseInt(match[1], 10);
-          }
-
-          _this2.trigger('data', event);
-
-          return;
-        }
-
-        match = /^#EXT-X-VERSION:?([0-9.]*)?/.exec(newLine);
-
-        if (match) {
-          event = {
-            type: 'tag',
-            tagType: 'version'
-          };
-
-          if (match[1]) {
-            event.version = parseInt(match[1], 10);
-          }
-
-          _this2.trigger('data', event);
-
-          return;
-        }
-
-        match = /^#EXT-X-MEDIA-SEQUENCE:?(\-?[0-9.]*)?/.exec(newLine);
-
-        if (match) {
-          event = {
-            type: 'tag',
-            tagType: 'media-sequence'
-          };
-
-          if (match[1]) {
-            event.number = parseInt(match[1], 10);
-          }
-
-          _this2.trigger('data', event);
-
-          return;
-        }
-
-        match = /^#EXT-X-DISCONTINUITY-SEQUENCE:?(\-?[0-9.]*)?/.exec(newLine);
-
-        if (match) {
-          event = {
-            type: 'tag',
-            tagType: 'discontinuity-sequence'
-          };
-
-          if (match[1]) {
-            event.number = parseInt(match[1], 10);
-          }
-
-          _this2.trigger('data', event);
-
-          return;
-        }
-
-        match = /^#EXT-X-PLAYLIST-TYPE:?(.*)?$/.exec(newLine);
-
-        if (match) {
-          event = {
-            type: 'tag',
-            tagType: 'playlist-type'
-          };
-
-          if (match[1]) {
-            event.playlistType = match[1];
-          }
-
-          _this2.trigger('data', event);
-
-          return;
-        }
-
-        match = /^#EXT-X-BYTERANGE:?(.*)?$/.exec(newLine);
-
-        if (match) {
-          event = _extends_1(parseByterange(match[1]), {
-            type: 'tag',
-            tagType: 'byterange'
-          });
-
-          _this2.trigger('data', event);
-
-          return;
-        }
-
-        match = /^#EXT-X-ALLOW-CACHE:?(YES|NO)?/.exec(newLine);
-
-        if (match) {
-          event = {
-            type: 'tag',
-            tagType: 'allow-cache'
-          };
-
-          if (match[1]) {
-            event.allowed = !/NO/.test(match[1]);
-          }
-
-          _this2.trigger('data', event);
-
-          return;
-        }
-
-        match = /^#EXT-X-MAP:?(.*)$/.exec(newLine);
-
-        if (match) {
-          event = {
-            type: 'tag',
-            tagType: 'map'
-          };
-
-          if (match[1]) {
-            var attributes = parseAttributes$1(match[1]);
-
-            if (attributes.URI) {
-              event.uri = attributes.URI;
-            }
-
-            if (attributes.BYTERANGE) {
-              event.byterange = parseByterange(attributes.BYTERANGE);
-            }
-          }
-
-          _this2.trigger('data', event);
-
-          return;
-        }
-
-        match = /^#EXT-X-STREAM-INF:?(.*)$/.exec(newLine);
-
-        if (match) {
-          event = {
-            type: 'tag',
-            tagType: 'stream-inf'
-          };
-
-          if (match[1]) {
-            event.attributes = parseAttributes$1(match[1]);
-
-            if (event.attributes.RESOLUTION) {
-              var split = event.attributes.RESOLUTION.split('x');
-              var resolution = {};
-
-              if (split[0]) {
-                resolution.width = parseInt(split[0], 10);
-              }
-
-              if (split[1]) {
-                resolution.height = parseInt(split[1], 10);
-              }
-
-              event.attributes.RESOLUTION = resolution;
-            }
-
-            if (event.attributes.BANDWIDTH) {
-              event.attributes.BANDWIDTH = parseInt(event.attributes.BANDWIDTH, 10);
-            }
-
-            if (event.attributes['PROGRAM-ID']) {
-              event.attributes['PROGRAM-ID'] = parseInt(event.attributes['PROGRAM-ID'], 10);
-            }
-          }
-
-          _this2.trigger('data', event);
-
-          return;
-        }
-
-        match = /^#EXT-X-MEDIA:?(.*)$/.exec(newLine);
-
-        if (match) {
-          event = {
-            type: 'tag',
-            tagType: 'media'
-          };
-
-          if (match[1]) {
-            event.attributes = parseAttributes$1(match[1]);
-          }
-
-          _this2.trigger('data', event);
-
-          return;
-        }
-
-        match = /^#EXT-X-ENDLIST/.exec(newLine);
-
-        if (match) {
-          _this2.trigger('data', {
-            type: 'tag',
-            tagType: 'endlist'
-          });
-
-          return;
-        }
-
-        match = /^#EXT-X-DISCONTINUITY/.exec(newLine);
-
-        if (match) {
-          _this2.trigger('data', {
-            type: 'tag',
-            tagType: 'discontinuity'
-          });
-
-          return;
-        }
-
-        match = /^#EXT-X-PROGRAM-DATE-TIME:?(.*)$/.exec(newLine);
-
-        if (match) {
-          event = {
-            type: 'tag',
-            tagType: 'program-date-time'
-          };
-
-          if (match[1]) {
-            event.dateTimeString = match[1];
-            event.dateTimeObject = new Date(match[1]);
-          }
-
-          _this2.trigger('data', event);
-
-          return;
-        }
-
-        match = /^#EXT-X-KEY:?(.*)$/.exec(newLine);
-
-        if (match) {
-          event = {
-            type: 'tag',
-            tagType: 'key'
-          };
-
-          if (match[1]) {
-            event.attributes = parseAttributes$1(match[1]); // parse the IV string into a Uint32Array
-
-            if (event.attributes.IV) {
-              if (event.attributes.IV.substring(0, 2).toLowerCase() === '0x') {
-                event.attributes.IV = event.attributes.IV.substring(2);
-              }
-
-              event.attributes.IV = event.attributes.IV.match(/.{8}/g);
-              event.attributes.IV[0] = parseInt(event.attributes.IV[0], 16);
-              event.attributes.IV[1] = parseInt(event.attributes.IV[1], 16);
-              event.attributes.IV[2] = parseInt(event.attributes.IV[2], 16);
-              event.attributes.IV[3] = parseInt(event.attributes.IV[3], 16);
-              event.attributes.IV = new Uint32Array(event.attributes.IV);
-            }
-          }
-
-          _this2.trigger('data', event);
-
-          return;
-        }
-
-        match = /^#EXT-X-START:?(.*)$/.exec(newLine);
-
-        if (match) {
-          event = {
-            type: 'tag',
-            tagType: 'start'
-          };
-
-          if (match[1]) {
-            event.attributes = parseAttributes$1(match[1]);
-            event.attributes['TIME-OFFSET'] = parseFloat(event.attributes['TIME-OFFSET']);
-            event.attributes.PRECISE = /YES/.test(event.attributes.PRECISE);
-          }
-
-          _this2.trigger('data', event);
-
-          return;
-        }
-
-        match = /^#EXT-X-CUE-OUT-CONT:?(.*)?$/.exec(newLine);
-
-        if (match) {
-          event = {
-            type: 'tag',
-            tagType: 'cue-out-cont'
-          };
-
-          if (match[1]) {
-            event.data = match[1];
-          } else {
-            event.data = '';
-          }
-
-          _this2.trigger('data', event);
-
-          return;
-        }
-
-        match = /^#EXT-X-CUE-OUT:?(.*)?$/.exec(newLine);
-
-        if (match) {
-          event = {
-            type: 'tag',
-            tagType: 'cue-out'
-          };
-
-          if (match[1]) {
-            event.data = match[1];
-          } else {
-            event.data = '';
-          }
-
-          _this2.trigger('data', event);
-
-          return;
-        }
-
-        match = /^#EXT-X-CUE-IN:?(.*)?$/.exec(newLine);
-
-        if (match) {
-          event = {
-            type: 'tag',
-            tagType: 'cue-in'
-          };
-
-          if (match[1]) {
-            event.data = match[1];
-          } else {
-            event.data = '';
-          }
-
-          _this2.trigger('data', event);
-
-          return;
-        }
-
-        match = /^#EXT-X-SKIP:(.*)$/.exec(newLine);
-
-        if (match && match[1]) {
-          event = {
-            type: 'tag',
-            tagType: 'skip'
-          };
-          event.attributes = parseAttributes$1(match[1]);
-
-          if (event.attributes.hasOwnProperty('SKIPPED-SEGMENTS')) {
-            event.attributes['SKIPPED-SEGMENTS'] = parseInt(event.attributes['SKIPPED-SEGMENTS'], 10);
-          }
-
-          if (event.attributes.hasOwnProperty('RECENTLY-REMOVED-DATERANGES')) {
-            event.attributes['RECENTLY-REMOVED-DATERANGES'] = event.attributes['RECENTLY-REMOVED-DATERANGES'].split(TAB);
-          }
-
-          _this2.trigger('data', event);
-
-          return;
-        }
-
-        match = /^#EXT-X-PART:(.*)$/.exec(newLine);
-
-        if (match && match[1]) {
-          event = {
-            type: 'tag',
-            tagType: 'part'
-          };
-          event.attributes = parseAttributes$1(match[1]);
-          ['DURATION'].forEach(function (key) {
-            if (event.attributes.hasOwnProperty(key)) {
-              event.attributes[key] = parseFloat(event.attributes[key]);
-            }
-          });
-          ['INDEPENDENT', 'GAP'].forEach(function (key) {
-            if (event.attributes.hasOwnProperty(key)) {
-              event.attributes[key] = /YES/.test(event.attributes[key]);
-            }
-          });
-
-          if (event.attributes.hasOwnProperty('BYTERANGE')) {
-            event.attributes.byterange = parseByterange(event.attributes.BYTERANGE);
-          }
-
-          _this2.trigger('data', event);
-
-          return;
-        }
-
-        match = /^#EXT-X-SERVER-CONTROL:(.*)$/.exec(newLine);
-
-        if (match && match[1]) {
-          event = {
-            type: 'tag',
-            tagType: 'server-control'
-          };
-          event.attributes = parseAttributes$1(match[1]);
-          ['CAN-SKIP-UNTIL', 'PART-HOLD-BACK', 'HOLD-BACK'].forEach(function (key) {
-            if (event.attributes.hasOwnProperty(key)) {
-              event.attributes[key] = parseFloat(event.attributes[key]);
-            }
-          });
-          ['CAN-SKIP-DATERANGES', 'CAN-BLOCK-RELOAD'].forEach(function (key) {
-            if (event.attributes.hasOwnProperty(key)) {
-              event.attributes[key] = /YES/.test(event.attributes[key]);
-            }
-          });
-
-          _this2.trigger('data', event);
-
-          return;
-        }
-
-        match = /^#EXT-X-PART-INF:(.*)$/.exec(newLine);
-
-        if (match && match[1]) {
-          event = {
-            type: 'tag',
-            tagType: 'part-inf'
-          };
-          event.attributes = parseAttributes$1(match[1]);
-          ['PART-TARGET'].forEach(function (key) {
-            if (event.attributes.hasOwnProperty(key)) {
-              event.attributes[key] = parseFloat(event.attributes[key]);
-            }
-          });
-
-          _this2.trigger('data', event);
-
-          return;
-        }
-
-        match = /^#EXT-X-PRELOAD-HINT:(.*)$/.exec(newLine);
-
-        if (match && match[1]) {
-          event = {
-            type: 'tag',
-            tagType: 'preload-hint'
-          };
-          event.attributes = parseAttributes$1(match[1]);
-          ['BYTERANGE-START', 'BYTERANGE-LENGTH'].forEach(function (key) {
-            if (event.attributes.hasOwnProperty(key)) {
-              event.attributes[key] = parseInt(event.attributes[key], 10);
-              var subkey = key === 'BYTERANGE-LENGTH' ? 'length' : 'offset';
-              event.attributes.byterange = event.attributes.byterange || {};
-              event.attributes.byterange[subkey] = event.attributes[key]; // only keep the parsed byterange object.
-
-              delete event.attributes[key];
-            }
-          });
-
-          _this2.trigger('data', event);
-
-          return;
-        }
-
-        match = /^#EXT-X-RENDITION-REPORT:(.*)$/.exec(newLine);
-
-        if (match && match[1]) {
-          event = {
-            type: 'tag',
-            tagType: 'rendition-report'
-          };
-          event.attributes = parseAttributes$1(match[1]);
-          ['LAST-MSN', 'LAST-PART'].forEach(function (key) {
-            if (event.attributes.hasOwnProperty(key)) {
-              event.attributes[key] = parseInt(event.attributes[key], 10);
-            }
-          });
-
-          _this2.trigger('data', event);
-
-          return;
-        } // unknown tag type
-
-
-        _this2.trigger('data', {
-          type: 'tag',
-          data: newLine.slice(4)
-        });
-      });
-    }
-    /**
-     * Add a parser for custom headers
-     *
-     * @param {Object}   options              a map of options for the added parser
-     * @param {RegExp}   options.expression   a regular expression to match the custom header
-     * @param {string}   options.customType   the custom type to register to the output
-     * @param {Function} [options.dataParser] function to parse the line into an object
-     * @param {boolean}  [options.segment]    should tag data be attached to the segment object
-     */
-    ;
-
-    _proto.addParser = function addParser(_ref) {
-      var _this3 = this;
-
-      var expression = _ref.expression,
-          customType = _ref.customType,
-          dataParser = _ref.dataParser,
-          segment = _ref.segment;
-
-      if (typeof dataParser !== 'function') {
-        dataParser = function dataParser(line) {
-          return line;
+    const createBasicPlugin = function (name, plugin) {
+        const basicPluginWrapper = function () {
+            // We trigger the "beforepluginsetup" and "pluginsetup" events on the player
+            // regardless, but we want the hash to be consistent with the hash provided
+            // for advanced plugins.
+            //
+            // The only potentially counter-intuitive thing here is the `instance` in
+            // the "pluginsetup" event is the value returned by the `plugin` function.
+            triggerSetupEvent(this, {
+                name,
+                plugin,
+                instance: null
+            }, true);
+            const instance = plugin.apply(this, arguments);
+            markPluginAsActive(this, name);
+            triggerSetupEvent(this, {
+                name,
+                plugin,
+                instance
+            });
+            return instance;
         };
-      }
-
-      this.customParsers.push(function (line) {
-        var match = expression.exec(line);
-
-        if (match) {
-          _this3.trigger('data', {
-            type: 'custom',
-            data: dataParser(line),
-            customType: customType,
-            segment: segment
-          });
-
-          return true;
-        }
-      });
-    }
-    /**
-     * Add a custom header mapper
-     *
-     * @param {Object}   options
-     * @param {RegExp}   options.expression   a regular expression to match the custom header
-     * @param {Function} options.map          function to translate tag into a different tag
-     */
-    ;
-
-    _proto.addTagMapper = function addTagMapper(_ref2) {
-      var expression = _ref2.expression,
-          map = _ref2.map;
-
-      var mapFn = function mapFn(line) {
-        if (expression.test(line)) {
-          return map(line);
-        }
-
-        return line;
-      };
-
-      this.tagMappers.push(mapFn);
+        Object.keys(plugin).forEach(function (prop) {
+            basicPluginWrapper[prop] = plugin[prop];
+        });
+        return basicPluginWrapper;
     };
 
-    return ParseStream;
-  }(Stream);
+    /**
+     * Takes a plugin sub-class and returns a factory function for generating
+     * instances of it.
+     *
+     * This factory function will replace itself with an instance of the requested
+     * sub-class of Plugin.
+     *
+     * @private
+     * @param   {string} name
+     *          The name of the plugin.
+     *
+     * @param   {Plugin} PluginSubClass
+     *          The advanced plugin.
+     *
+     * @return {Function}
+     */
+    const createPluginFactory = (name, PluginSubClass) => {
+        // Add a `name` property to the plugin prototype so that each plugin can
+        // refer to itself by name.
+        PluginSubClass.prototype.name = name;
+        return function (...args) {
+            triggerSetupEvent(this, {
+                name,
+                plugin: PluginSubClass,
+                instance: null
+            }, true);
+            const instance = new PluginSubClass(...[this, ...args]);
 
-  var camelCase = function camelCase(str) {
-    return str.toLowerCase().replace(/-(\w)/g, function (a) {
-      return a[1].toUpperCase();
-    });
-  };
+            // The plugin is replaced by a function that returns the current instance.
+            this[name] = () => instance;
+            triggerSetupEvent(this, instance.getEventHash());
+            return instance;
+        };
+    };
 
-  var camelCaseKeys = function camelCaseKeys(attributes) {
-    var result = {};
-    Object.keys(attributes).forEach(function (key) {
-      result[camelCase(key)] = attributes[key];
-    });
-    return result;
-  }; // set SERVER-CONTROL hold back based upon targetDuration and partTargetDuration
-  // we need this helper because defaults are based upon targetDuration and
-  // partTargetDuration being set, but they may not be if SERVER-CONTROL appears before
-  // target durations are set.
+    /**
+     * Parent class for all advanced plugins.
+     *
+     * @mixes   module:evented~EventedMixin
+     * @mixes   module:stateful~StatefulMixin
+     * @fires   Player#beforepluginsetup
+     * @fires   Player#beforepluginsetup:$name
+     * @fires   Player#pluginsetup
+     * @fires   Player#pluginsetup:$name
+     * @listens Player#dispose
+     * @throws  {Error}
+     *          If attempting to instantiate the base {@link Plugin} class
+     *          directly instead of via a sub-class.
+     */
+    class Plugin {
+        /**
+         * Creates an instance of this class.
+         *
+         * Sub-classes should call `super` to ensure plugins are properly initialized.
+         *
+         * @param {Player} player
+         *        A Video.js player instance.
+         */
+        constructor(player) {
+            if (this.constructor === Plugin) {
+                throw new Error('Plugin must be sub-classed; not directly instantiated.');
+            }
+            this.player = player;
+            if (!this.log) {
+                this.log = this.player.log.createLogger(this.name);
+            }
 
+            // Make this object evented, but remove the added `trigger` method so we
+            // use the prototype version instead.
+            evented(this);
+            delete this.trigger;
+            stateful(this, this.constructor.defaultState);
+            markPluginAsActive(player, this.name);
 
-  var setHoldBack = function setHoldBack(manifest) {
-    var serverControl = manifest.serverControl,
-        targetDuration = manifest.targetDuration,
-        partTargetDuration = manifest.partTargetDuration;
+            // Auto-bind the dispose method so we can use it as a listener and unbind
+            // it later easily.
+            this.dispose = this.dispose.bind(this);
 
-    if (!serverControl) {
-      return;
-    }
-
-    var tag = '#EXT-X-SERVER-CONTROL';
-    var hb = 'holdBack';
-    var phb = 'partHoldBack';
-    var minTargetDuration = targetDuration && targetDuration * 3;
-    var minPartDuration = partTargetDuration && partTargetDuration * 2;
-
-    if (targetDuration && !serverControl.hasOwnProperty(hb)) {
-      serverControl[hb] = minTargetDuration;
-      this.trigger('info', {
-        message: tag + " defaulting HOLD-BACK to targetDuration * 3 (" + minTargetDuration + ")."
-      });
-    }
-
-    if (minTargetDuration && serverControl[hb] < minTargetDuration) {
-      this.trigger('warn', {
-        message: tag + " clamping HOLD-BACK (" + serverControl[hb] + ") to targetDuration * 3 (" + minTargetDuration + ")"
-      });
-      serverControl[hb] = minTargetDuration;
-    } // default no part hold back to part target duration * 3
-
-
-    if (partTargetDuration && !serverControl.hasOwnProperty(phb)) {
-      serverControl[phb] = partTargetDuration * 3;
-      this.trigger('info', {
-        message: tag + " defaulting PART-HOLD-BACK to partTargetDuration * 3 (" + serverControl[phb] + ")."
-      });
-    } // if part hold back is too small default it to part target duration * 2
-
-
-    if (partTargetDuration && serverControl[phb] < minPartDuration) {
-      this.trigger('warn', {
-        message: tag + " clamping PART-HOLD-BACK (" + serverControl[phb] + ") to partTargetDuration * 2 (" + minPartDuration + ")."
-      });
-      serverControl[phb] = minPartDuration;
-    }
-  };
-  /**
-   * A parser for M3U8 files. The current interpretation of the input is
-   * exposed as a property `manifest` on parser objects. It's just two lines to
-   * create and parse a manifest once you have the contents available as a string:
-   *
-   * ```js
-   * var parser = new m3u8.Parser();
-   * parser.push(xhr.responseText);
-   * ```
-   *
-   * New input can later be applied to update the manifest object by calling
-   * `push` again.
-   *
-   * The parser attempts to create a usable manifest object even if the
-   * underlying input is somewhat nonsensical. It emits `info` and `warning`
-   * events during the parse if it encounters input that seems invalid or
-   * requires some property of the manifest object to be defaulted.
-   *
-   * @class Parser
-   * @extends Stream
-   */
-
-
-  var Parser = /*#__PURE__*/function (_Stream) {
-    inheritsLoose(Parser, _Stream);
-
-    function Parser() {
-      var _this;
-
-      _this = _Stream.call(this) || this;
-      _this.lineStream = new LineStream();
-      _this.parseStream = new ParseStream();
-
-      _this.lineStream.pipe(_this.parseStream);
-      /* eslint-disable consistent-this */
-
-
-      var self = assertThisInitialized(_this);
-      /* eslint-enable consistent-this */
-
-
-      var uris = [];
-      var currentUri = {}; // if specified, the active EXT-X-MAP definition
-
-      var currentMap; // if specified, the active decryption key
-
-      var _key;
-
-      var hasParts = false;
-
-      var noop = function noop() {};
-
-      var defaultMediaGroups = {
-        'AUDIO': {},
-        'VIDEO': {},
-        'CLOSED-CAPTIONS': {},
-        'SUBTITLES': {}
-      }; // This is the Widevine UUID from DASH IF IOP. The same exact string is
-      // used in MPDs with Widevine encrypted streams.
-
-      var widevineUuid = 'urn:uuid:edef8ba9-79d6-4ace-a3c8-27dcd51d21ed'; // group segments into numbered timelines delineated by discontinuities
-
-      var currentTimeline = 0; // the manifest is empty until the parse stream begins delivering data
-
-      _this.manifest = {
-        allowCache: true,
-        discontinuityStarts: [],
-        segments: []
-      }; // keep track of the last seen segment's byte range end, as segments are not required
-      // to provide the offset, in which case it defaults to the next byte after the
-      // previous segment
-
-      var lastByterangeEnd = 0; // keep track of the last seen part's byte range end.
-
-      var lastPartByterangeEnd = 0;
-
-      _this.on('end', function () {
-        // only add preloadSegment if we don't yet have a uri for it.
-        // and we actually have parts/preloadHints
-        if (currentUri.uri || !currentUri.parts && !currentUri.preloadHints) {
-          return;
+            // If the player is disposed, dispose the plugin.
+            player.on('dispose', this.dispose);
         }
 
-        if (!currentUri.map && currentMap) {
-          currentUri.map = currentMap;
+        /**
+         * Get the version of the plugin that was set on <pluginName>.VERSION
+         */
+        version() {
+            return this.constructor.VERSION;
         }
 
-        if (!currentUri.key && _key) {
-          currentUri.key = _key;
+        /**
+         * Each event triggered by plugins includes a hash of additional data with
+         * conventional properties.
+         *
+         * This returns that object or mutates an existing hash.
+         *
+         * @param   {Object} [hash={}]
+         *          An object to be used as event an event hash.
+         *
+         * @return {Plugin~PluginEventHash}
+         *          An event hash object with provided properties mixed-in.
+         */
+        getEventHash(hash = {}) {
+            hash.name = this.name;
+            hash.plugin = this.constructor;
+            hash.instance = this;
+            return hash;
         }
 
-        if (!currentUri.timeline && typeof currentTimeline === 'number') {
-          currentUri.timeline = currentTimeline;
+        /**
+         * Triggers an event on the plugin object and overrides
+         * {@link module:evented~EventedMixin.trigger|EventedMixin.trigger}.
+         *
+         * @param   {string|Object} event
+         *          An event type or an object with a type property.
+         *
+         * @param   {Object} [hash={}]
+         *          Additional data hash to merge with a
+         *          {@link Plugin~PluginEventHash|PluginEventHash}.
+         *
+         * @return {boolean}
+         *          Whether or not default was prevented.
+         */
+        trigger(event, hash = {}) {
+            return trigger(this.eventBusEl_, event, this.getEventHash(hash));
         }
 
-        _this.manifest.preloadSegment = currentUri;
-      }); // update the manifest with the m3u8 entry from the parse stream
+        /**
+         * Handles "statechanged" events on the plugin. No-op by default, override by
+         * subclassing.
+         *
+         * @abstract
+         * @param    {Event} e
+         *           An event object provided by a "statechanged" event.
+         *
+         * @param    {Object} e.changes
+         *           An object describing changes that occurred with the "statechanged"
+         *           event.
+         */
+        handleStateChanged(e) {}
 
+        /**
+         * Disposes a plugin.
+         *
+         * Subclasses can override this if they want, but for the sake of safety,
+         * it's probably best to subscribe the "dispose" event.
+         *
+         * @fires Plugin#dispose
+         */
+        dispose() {
+            const {
+                name,
+                player
+            } = this;
 
-      _this.parseStream.on('data', function (entry) {
-        var mediaGroup;
-        var rendition;
-        ({
-          tag: function tag() {
-            // switch based on the tag type
-            (({
-              version: function version() {
-                if (entry.version) {
-                  this.manifest.version = entry.version;
+            /**
+             * Signals that a advanced plugin is about to be disposed.
+             *
+             * @event Plugin#dispose
+             * @type  {Event}
+             */
+            this.trigger('dispose');
+            this.off();
+            player.off('dispose', this.dispose);
+
+            // Eliminate any possible sources of leaking memory by clearing up
+            // references between the player and the plugin instance and nulling out
+            // the plugin's state and replacing methods with a function that throws.
+            player[PLUGIN_CACHE_KEY][name] = false;
+            this.player = this.state = null;
+
+            // Finally, replace the plugin name on the player with a new factory
+            // function, so that the plugin is ready to be set up again.
+            player[name] = createPluginFactory(name, pluginStorage[name]);
+        }
+
+        /**
+         * Determines if a plugin is a basic plugin (i.e. not a sub-class of `Plugin`).
+         *
+         * @param   {string|Function} plugin
+         *          If a string, matches the name of a plugin. If a function, will be
+         *          tested directly.
+         *
+         * @return {boolean}
+         *          Whether or not a plugin is a basic plugin.
+         */
+        static isBasic(plugin) {
+            const p = typeof plugin === 'string' ? getPlugin(plugin) : plugin;
+            return typeof p === 'function' && !Plugin.prototype.isPrototypeOf(p.prototype);
+        }
+
+        /**
+         * Register a Video.js plugin.
+         *
+         * @param   {string} name
+         *          The name of the plugin to be registered. Must be a string and
+         *          must not match an existing plugin or a method on the `Player`
+         *          prototype.
+         *
+         * @param   {typeof Plugin|Function} plugin
+         *          A sub-class of `Plugin` or a function for basic plugins.
+         *
+         * @return {typeof Plugin|Function}
+         *          For advanced plugins, a factory function for that plugin. For
+         *          basic plugins, a wrapper function that initializes the plugin.
+         */
+        static registerPlugin(name, plugin) {
+            if (typeof name !== 'string') {
+                throw new Error(`Illegal plugin name, "${name}", must be a string, was ${typeof name}.`);
+            }
+            if (pluginExists(name)) {
+                log$1.warn(`A plugin named "${name}" already exists. You may want to avoid re-registering plugins!`);
+            } else if (Player.prototype.hasOwnProperty(name)) {
+                throw new Error(`Illegal plugin name, "${name}", cannot share a name with an existing player method!`);
+            }
+            if (typeof plugin !== 'function') {
+                throw new Error(`Illegal plugin for "${name}", must be a function, was ${typeof plugin}.`);
+            }
+            pluginStorage[name] = plugin;
+
+            // Add a player prototype method for all sub-classed plugins (but not for
+            // the base Plugin class).
+            if (name !== BASE_PLUGIN_NAME) {
+                if (Plugin.isBasic(plugin)) {
+                    Player.prototype[name] = createBasicPlugin(name, plugin);
+                } else {
+                    Player.prototype[name] = createPluginFactory(name, plugin);
                 }
-              },
-              'allow-cache': function allowCache() {
-                this.manifest.allowCache = entry.allowed;
+            }
+            return plugin;
+        }
 
-                if (!('allowed' in entry)) {
-                  this.trigger('info', {
-                    message: 'defaulting allowCache to YES'
-                  });
-                  this.manifest.allowCache = true;
+        /**
+         * De-register a Video.js plugin.
+         *
+         * @param  {string} name
+         *         The name of the plugin to be de-registered. Must be a string that
+         *         matches an existing plugin.
+         *
+         * @throws {Error}
+         *         If an attempt is made to de-register the base plugin.
+         */
+        static deregisterPlugin(name) {
+            if (name === BASE_PLUGIN_NAME) {
+                throw new Error('Cannot de-register base plugin.');
+            }
+            if (pluginExists(name)) {
+                delete pluginStorage[name];
+                delete Player.prototype[name];
+            }
+        }
+
+        /**
+         * Gets an object containing multiple Video.js plugins.
+         *
+         * @param   {Array} [names]
+         *          If provided, should be an array of plugin names. Defaults to _all_
+         *          plugin names.
+         *
+         * @return {Object|undefined}
+         *          An object containing plugin(s) associated with their name(s) or
+         *          `undefined` if no matching plugins exist).
+         */
+        static getPlugins(names = Object.keys(pluginStorage)) {
+            let result;
+            names.forEach(name => {
+                const plugin = getPlugin(name);
+                if (plugin) {
+                    result = result || {};
+                    result[name] = plugin;
                 }
-              },
-              byterange: function byterange() {
-                var byterange = {};
+            });
+            return result;
+        }
 
-                if ('length' in entry) {
-                  currentUri.byterange = byterange;
-                  byterange.length = entry.length;
+        /**
+         * Gets a plugin's version, if available
+         *
+         * @param   {string} name
+         *          The name of a plugin.
+         *
+         * @return {string}
+         *          The plugin's version or an empty string.
+         */
+        static getPluginVersion(name) {
+            const plugin = getPlugin(name);
+            return plugin && plugin.VERSION || '';
+        }
+    }
 
-                  if (!('offset' in entry)) {
-                    /*
+    /**
+     * Gets a plugin by name if it exists.
+     *
+     * @static
+     * @method   getPlugin
+     * @memberOf Plugin
+     * @param    {string} name
+     *           The name of a plugin.
+     *
+     * @returns  {typeof Plugin|Function|undefined}
+     *           The plugin (or `undefined`).
+     */
+    Plugin.getPlugin = getPlugin;
+
+    /**
+     * The name of the base plugin class as it is registered.
+     *
+     * @type {string}
+     */
+    Plugin.BASE_PLUGIN_NAME = BASE_PLUGIN_NAME;
+    Plugin.registerPlugin(BASE_PLUGIN_NAME, Plugin);
+
+    /**
+     * Documented in player.js
+     *
+     * @ignore
+     */
+    Player.prototype.usingPlugin = function (name) {
+        return !!this[PLUGIN_CACHE_KEY] && this[PLUGIN_CACHE_KEY][name] === true;
+    };
+
+    /**
+     * Documented in player.js
+     *
+     * @ignore
+     */
+    Player.prototype.hasPlugin = function (name) {
+        return !!pluginExists(name);
+    };
+
+    /**
+     * Signals that a plugin is about to be set up on a player.
+     *
+     * @event    Player#beforepluginsetup
+     * @type     {Plugin~PluginEventHash}
+     */
+
+    /**
+     * Signals that a plugin is about to be set up on a player - by name. The name
+     * is the name of the plugin.
+     *
+     * @event    Player#beforepluginsetup:$name
+     * @type     {Plugin~PluginEventHash}
+     */
+
+    /**
+     * Signals that a plugin has just been set up on a player.
+     *
+     * @event    Player#pluginsetup
+     * @type     {Plugin~PluginEventHash}
+     */
+
+    /**
+     * Signals that a plugin has just been set up on a player - by name. The name
+     * is the name of the plugin.
+     *
+     * @event    Player#pluginsetup:$name
+     * @type     {Plugin~PluginEventHash}
+     */
+
+    /**
+     * @typedef  {Object} Plugin~PluginEventHash
+     *
+     * @property {string} instance
+     *           For basic plugins, the return value of the plugin function. For
+     *           advanced plugins, the plugin instance on which the event is fired.
+     *
+     * @property {string} name
+     *           The name of the plugin.
+     *
+     * @property {string} plugin
+     *           For basic plugins, the plugin function. For advanced plugins, the
+     *           plugin class/constructor.
+     */
+
+    /**
+     * @file deprecate.js
+     * @module deprecate
+     */
+
+    /**
+     * Decorate a function with a deprecation message the first time it is called.
+     *
+     * @param  {string}   message
+     *         A deprecation message to log the first time the returned function
+     *         is called.
+     *
+     * @param  {Function} fn
+     *         The function to be deprecated.
+     *
+     * @return {Function}
+     *         A wrapper function that will log a deprecation warning the first
+     *         time it is called. The return value will be the return value of
+     *         the wrapped function.
+     */
+    function deprecate(message, fn) {
+        let warned = false;
+        return function (...args) {
+            if (!warned) {
+                log$1.warn(message);
+            }
+            warned = true;
+            return fn.apply(this, args);
+        };
+    }
+
+    /**
+     * Internal function used to mark a function as deprecated in the next major
+     * version with consistent messaging.
+     *
+     * @param  {number}   major   The major version where it will be removed
+     * @param  {string}   oldName The old function name
+     * @param  {string}   newName The new function name
+     * @param  {Function} fn      The function to deprecate
+     * @return {Function}         The decorated function
+     */
+    function deprecateForMajor(major, oldName, newName, fn) {
+        return deprecate(`${oldName} is deprecated and will be removed in ${major}.0; please use ${newName} instead.`, fn);
+    }
+
+    /**
+     * @file video.js
+     * @module videojs
+     */
+
+    /**
+     * Normalize an `id` value by trimming off a leading `#`
+     *
+     * @private
+     * @param   {string} id
+     *          A string, maybe with a leading `#`.
+     *
+     * @return {string}
+     *          The string, without any leading `#`.
+     */
+    const normalizeId = id => id.indexOf('#') === 0 ? id.slice(1) : id;
+
+    /**
+     * A callback that is called when a component is ready. Does not have any
+     * parameters and any callback value will be ignored. See: {@link Component~ReadyCallback}
+     *
+     * @callback ReadyCallback
+     */
+
+    /**
+     * The `videojs()` function doubles as the main function for users to create a
+     * {@link Player} instance as well as the main library namespace.
+     *
+     * It can also be used as a getter for a pre-existing {@link Player} instance.
+     * However, we _strongly_ recommend using `videojs.getPlayer()` for this
+     * purpose because it avoids any potential for unintended initialization.
+     *
+     * Due to [limitations](https://github.com/jsdoc3/jsdoc/issues/955#issuecomment-313829149)
+     * of our JSDoc template, we cannot properly document this as both a function
+     * and a namespace, so its function signature is documented here.
+     *
+     * #### Arguments
+     * ##### id
+     * string|Element, **required**
+     *
+     * Video element or video element ID.
+     *
+     * ##### options
+     * Object, optional
+     *
+     * Options object for providing settings.
+     * See: [Options Guide](https://docs.videojs.com/tutorial-options.html).
+     *
+     * ##### ready
+     * {@link Component~ReadyCallback}, optional
+     *
+     * A function to be called when the {@link Player} and {@link Tech} are ready.
+     *
+     * #### Return Value
+     *
+     * The `videojs()` function returns a {@link Player} instance.
+     *
+     * @namespace
+     *
+     * @borrows AudioTrack as AudioTrack
+     * @borrows Component.getComponent as getComponent
+     * @borrows module:events.on as on
+     * @borrows module:events.one as one
+     * @borrows module:events.off as off
+     * @borrows module:events.trigger as trigger
+     * @borrows EventTarget as EventTarget
+     * @borrows module:middleware.use as use
+     * @borrows Player.players as players
+     * @borrows Plugin.registerPlugin as registerPlugin
+     * @borrows Plugin.deregisterPlugin as deregisterPlugin
+     * @borrows Plugin.getPlugins as getPlugins
+     * @borrows Plugin.getPlugin as getPlugin
+     * @borrows Plugin.getPluginVersion as getPluginVersion
+     * @borrows Tech.getTech as getTech
+     * @borrows Tech.registerTech as registerTech
+     * @borrows TextTrack as TextTrack
+     * @borrows VideoTrack as VideoTrack
+     *
+     * @param  {string|Element} id
+     *         Video element or video element ID.
+     *
+     * @param  {Object} [options]
+     *         Options object for providing settings.
+     *         See: [Options Guide](https://docs.videojs.com/tutorial-options.html).
+     *
+     * @param  {ReadyCallback} [ready]
+     *         A function to be called when the {@link Player} and {@link Tech} are
+     *         ready.
+     *
+     * @return {Player}
+     *         The `videojs()` function returns a {@link Player|Player} instance.
+     */
+    function videojs(id, options, ready) {
+        let player = videojs.getPlayer(id);
+        if (player) {
+            if (options) {
+                log$1.warn(`Player "${id}" is already initialised. Options will not be applied.`);
+            }
+            if (ready) {
+                player.ready(ready);
+            }
+            return player;
+        }
+        const el = typeof id === 'string' ? $('#' + normalizeId(id)) : id;
+        if (!isEl(el)) {
+            throw new TypeError('The element or ID supplied is not valid. (videojs)');
+        }
+
+        // document.body.contains(el) will only check if el is contained within that one document.
+        // This causes problems for elements in iframes.
+        // Instead, use the element's ownerDocument instead of the global document.
+        // This will make sure that the element is indeed in the dom of that document.
+        // Additionally, check that the document in question has a default view.
+        // If the document is no longer attached to the dom, the defaultView of the document will be null.
+        if (!el.ownerDocument.defaultView || !el.ownerDocument.body.contains(el)) {
+            log$1.warn('The element supplied is not included in the DOM');
+        }
+        options = options || {};
+
+        // Store a copy of the el before modification, if it is to be restored in destroy()
+        // If div ingest, store the parent div
+        if (options.restoreEl === true) {
+            options.restoreEl = (el.parentNode && el.parentNode.hasAttribute('data-vjs-player') ? el.parentNode : el).cloneNode(true);
+        }
+        hooks('beforesetup').forEach(hookFunction => {
+            const opts = hookFunction(el, merge$2(options));
+            if (!isObject$1(opts) || Array.isArray(opts)) {
+                log$1.error('please return an object in beforesetup hooks');
+                return;
+            }
+            options = merge$2(options, opts);
+        });
+
+        // We get the current "Player" component here in case an integration has
+        // replaced it with a custom player.
+        const PlayerComponent = Component$1.getComponent('Player');
+        player = new PlayerComponent(el, options, ready);
+        hooks('setup').forEach(hookFunction => hookFunction(player));
+        return player;
+    }
+    videojs.hooks_ = hooks_;
+    videojs.hooks = hooks;
+    videojs.hook = hook;
+    videojs.hookOnce = hookOnce;
+    videojs.removeHook = removeHook;
+
+    // Add default styles
+    if (window.VIDEOJS_NO_DYNAMIC_STYLE !== true && isReal()) {
+        let style = $('.vjs-styles-defaults');
+        if (!style) {
+            style = createStyleElement('vjs-styles-defaults');
+            const head = $('head');
+            if (head) {
+                head.insertBefore(style, head.firstChild);
+            }
+            setTextContent(style, `
+      .video-js {
+        width: 300px;
+        height: 150px;
+      }
+
+      .vjs-fluid:not(.vjs-audio-only-mode) {
+        padding-top: 56.25%
+      }
+    `);
+        }
+    }
+
+    // Run Auto-load players
+    // You have to wait at least once in case this script is loaded after your
+    // video in the DOM (weird behavior only with minified version)
+    autoSetupTimeout(1, videojs);
+
+    /**
+     * Current Video.js version. Follows [semantic versioning](https://semver.org/).
+     *
+     * @type {string}
+     */
+    videojs.VERSION = version$5;
+
+    /**
+     * The global options object. These are the settings that take effect
+     * if no overrides are specified when the player is created.
+     *
+     * @type {Object}
+     */
+    videojs.options = Player.prototype.options_;
+
+    /**
+     * Get an object with the currently created players, keyed by player ID
+     *
+     * @return {Object}
+     *         The created players
+     */
+    videojs.getPlayers = () => Player.players;
+
+    /**
+     * Get a single player based on an ID or DOM element.
+     *
+     * This is useful if you want to check if an element or ID has an associated
+     * Video.js player, but not create one if it doesn't.
+     *
+     * @param   {string|Element} id
+     *          An HTML element - `<video>`, `<audio>`, or `<video-js>` -
+     *          or a string matching the `id` of such an element.
+     *
+     * @return {Player|undefined}
+     *          A player instance or `undefined` if there is no player instance
+     *          matching the argument.
+     */
+    videojs.getPlayer = id => {
+        const players = Player.players;
+        let tag;
+        if (typeof id === 'string') {
+            const nId = normalizeId(id);
+            const player = players[nId];
+            if (player) {
+                return player;
+            }
+            tag = $('#' + nId);
+        } else {
+            tag = id;
+        }
+        if (isEl(tag)) {
+            const {
+                player,
+                playerId
+            } = tag;
+
+            // Element may have a `player` property referring to an already created
+            // player instance. If so, return that.
+            if (player || players[playerId]) {
+                return player || players[playerId];
+            }
+        }
+    };
+
+    /**
+     * Returns an array of all current players.
+     *
+     * @return {Array}
+     *         An array of all players. The array will be in the order that
+     *         `Object.keys` provides, which could potentially vary between
+     *         JavaScript engines.
+     *
+     */
+    videojs.getAllPlayers = () =>
+        // Disposed players leave a key with a `null` value, so we need to make sure
+        // we filter those out.
+        Object.keys(Player.players).map(k => Player.players[k]).filter(Boolean);
+    videojs.players = Player.players;
+    videojs.getComponent = Component$1.getComponent;
+
+    /**
+     * Register a component so it can referred to by name. Used when adding to other
+     * components, either through addChild `component.addChild('myComponent')` or through
+     * default children options  `{ children: ['myComponent'] }`.
+     *
+     * > NOTE: You could also just initialize the component before adding.
+     * `component.addChild(new MyComponent());`
+     *
+     * @param {string} name
+     *        The class name of the component
+     *
+     * @param {Component} comp
+     *        The component class
+     *
+     * @return {Component}
+     *         The newly registered component
+     */
+    videojs.registerComponent = (name, comp) => {
+        if (Tech.isTech(comp)) {
+            log$1.warn(`The ${name} tech was registered as a component. It should instead be registered using videojs.registerTech(name, tech)`);
+        }
+        Component$1.registerComponent.call(Component$1, name, comp);
+    };
+    videojs.getTech = Tech.getTech;
+    videojs.registerTech = Tech.registerTech;
+    videojs.use = use;
+
+    /**
+     * An object that can be returned by a middleware to signify
+     * that the middleware is being terminated.
+     *
+     * @type {object}
+     * @property {object} middleware.TERMINATOR
+     */
+    Object.defineProperty(videojs, 'middleware', {
+        value: {},
+        writeable: false,
+        enumerable: true
+    });
+    Object.defineProperty(videojs.middleware, 'TERMINATOR', {
+        value: TERMINATOR,
+        writeable: false,
+        enumerable: true
+    });
+
+    /**
+     * A reference to the {@link module:browser|browser utility module} as an object.
+     *
+     * @type {Object}
+     * @see  {@link module:browser|browser}
+     */
+    videojs.browser = browser;
+
+    /**
+     * A reference to the {@link module:obj|obj utility module} as an object.
+     *
+     * @type {Object}
+     * @see  {@link module:obj|obj}
+     */
+    videojs.obj = Obj;
+
+    /**
+     * Deprecated reference to the {@link module:obj.merge|merge function}
+     *
+     * @type {Function}
+     * @see {@link module:obj.merge|merge}
+     * @deprecated Deprecated and will be removed in 9.0. Please use videojs.obj.merge instead.
+     */
+    videojs.mergeOptions = deprecateForMajor(9, 'videojs.mergeOptions', 'videojs.obj.merge', merge$2);
+
+    /**
+     * Deprecated reference to the {@link module:obj.defineLazyProperty|defineLazyProperty function}
+     *
+     * @type {Function}
+     * @see {@link module:obj.defineLazyProperty|defineLazyProperty}
+     * @deprecated Deprecated and will be removed in 9.0. Please use videojs.obj.defineLazyProperty instead.
+     */
+    videojs.defineLazyProperty = deprecateForMajor(9, 'videojs.defineLazyProperty', 'videojs.obj.defineLazyProperty', defineLazyProperty);
+
+    /**
+     * Deprecated reference to the {@link module:fn.bind_|fn.bind_ function}
+     *
+     * @type {Function}
+     * @see {@link module:fn.bind_|fn.bind_}
+     * @deprecated Deprecated and will be removed in 9.0. Please use native Function.prototype.bind instead.
+     */
+    videojs.bind = deprecateForMajor(9, 'videojs.bind', 'native Function.prototype.bind', bind_);
+    videojs.registerPlugin = Plugin.registerPlugin;
+    videojs.deregisterPlugin = Plugin.deregisterPlugin;
+
+    /**
+     * Deprecated method to register a plugin with Video.js
+     *
+     * @deprecated Deprecated and will be removed in 9.0. Use videojs.registerPlugin() instead.
+     *
+     * @param {string} name
+     *        The plugin name
+     *
+     * @param {Plugin|Function} plugin
+     *         The plugin sub-class or function
+     */
+    videojs.plugin = (name, plugin) => {
+        log$1.warn('videojs.plugin() is deprecated; use videojs.registerPlugin() instead');
+        return Plugin.registerPlugin(name, plugin);
+    };
+    videojs.getPlugins = Plugin.getPlugins;
+    videojs.getPlugin = Plugin.getPlugin;
+    videojs.getPluginVersion = Plugin.getPluginVersion;
+
+    /**
+     * Adding languages so that they're available to all players.
+     * Example: `videojs.addLanguage('es', { 'Hello': 'Hola' });`
+     *
+     * @param {string} code
+     *        The language code or dictionary property
+     *
+     * @param {Object} data
+     *        The data values to be translated
+     *
+     * @return {Object}
+     *         The resulting language dictionary object
+     */
+    videojs.addLanguage = function (code, data) {
+        code = ('' + code).toLowerCase();
+        videojs.options.languages = merge$2(videojs.options.languages, {
+            [code]: data
+        });
+        return videojs.options.languages[code];
+    };
+
+    /**
+     * A reference to the {@link module:log|log utility module} as an object.
+     *
+     * @type {Function}
+     * @see  {@link module:log|log}
+     */
+    videojs.log = log$1;
+    videojs.createLogger = createLogger;
+
+    /**
+     * A reference to the {@link module:time|time utility module} as an object.
+     *
+     * @type {Object}
+     * @see {@link module:time|time}
+     */
+    videojs.time = Time;
+
+    /**
+     * Deprecated reference to the {@link module:time.createTimeRanges|createTimeRanges function}
+     *
+     * @type {Function}
+     * @see {@link module:time.createTimeRanges|createTimeRanges}
+     * @deprecated Deprecated and will be removed in 9.0. Please use videojs.time.createTimeRanges instead.
+     */
+    videojs.createTimeRange = deprecateForMajor(9, 'videojs.createTimeRange', 'videojs.time.createTimeRanges', createTimeRanges$1);
+
+    /**
+     * Deprecated reference to the {@link module:time.createTimeRanges|createTimeRanges function}
+     *
+     * @type {Function}
+     * @see {@link module:time.createTimeRanges|createTimeRanges}
+     * @deprecated Deprecated and will be removed in 9.0. Please use videojs.time.createTimeRanges instead.
+     */
+    videojs.createTimeRanges = deprecateForMajor(9, 'videojs.createTimeRanges', 'videojs.time.createTimeRanges', createTimeRanges$1);
+
+    /**
+     * Deprecated reference to the {@link module:time.formatTime|formatTime function}
+     *
+     * @type {Function}
+     * @see {@link module:time.formatTime|formatTime}
+     * @deprecated Deprecated and will be removed in 9.0. Please use videojs.time.format instead.
+     */
+    videojs.formatTime = deprecateForMajor(9, 'videojs.formatTime', 'videojs.time.formatTime', formatTime);
+
+    /**
+     * Deprecated reference to the {@link module:time.setFormatTime|setFormatTime function}
+     *
+     * @type {Function}
+     * @see {@link module:time.setFormatTime|setFormatTime}
+     * @deprecated Deprecated and will be removed in 9.0. Please use videojs.time.setFormat instead.
+     */
+    videojs.setFormatTime = deprecateForMajor(9, 'videojs.setFormatTime', 'videojs.time.setFormatTime', setFormatTime);
+
+    /**
+     * Deprecated reference to the {@link module:time.resetFormatTime|resetFormatTime function}
+     *
+     * @type {Function}
+     * @see {@link module:time.resetFormatTime|resetFormatTime}
+     * @deprecated Deprecated and will be removed in 9.0. Please use videojs.time.resetFormat instead.
+     */
+    videojs.resetFormatTime = deprecateForMajor(9, 'videojs.resetFormatTime', 'videojs.time.resetFormatTime', resetFormatTime);
+
+    /**
+     * Deprecated reference to the {@link module:url.parseUrl|Url.parseUrl function}
+     *
+     * @type {Function}
+     * @see {@link module:url.parseUrl|parseUrl}
+     * @deprecated Deprecated and will be removed in 9.0. Please use videojs.url.parseUrl instead.
+     */
+    videojs.parseUrl = deprecateForMajor(9, 'videojs.parseUrl', 'videojs.url.parseUrl', parseUrl);
+
+    /**
+     * Deprecated reference to the {@link module:url.isCrossOrigin|Url.isCrossOrigin function}
+     *
+     * @type {Function}
+     * @see {@link module:url.isCrossOrigin|isCrossOrigin}
+     * @deprecated Deprecated and will be removed in 9.0. Please use videojs.url.isCrossOrigin instead.
+     */
+    videojs.isCrossOrigin = deprecateForMajor(9, 'videojs.isCrossOrigin', 'videojs.url.isCrossOrigin', isCrossOrigin);
+    videojs.EventTarget = EventTarget$2;
+    videojs.any = any;
+    videojs.on = on;
+    videojs.one = one;
+    videojs.off = off;
+    videojs.trigger = trigger;
+
+    /**
+     * A cross-browser XMLHttpRequest wrapper.
+     *
+     * @function
+     * @param    {Object} options
+     *           Settings for the request.
+     *
+     * @return   {XMLHttpRequest|XDomainRequest}
+     *           The request object.
+     *
+     * @see      https://github.com/Raynos/xhr
+     */
+    videojs.xhr = lib;
+    videojs.TextTrack = TextTrack;
+    videojs.AudioTrack = AudioTrack;
+    videojs.VideoTrack = VideoTrack;
+    ['isEl', 'isTextNode', 'createEl', 'hasClass', 'addClass', 'removeClass', 'toggleClass', 'setAttributes', 'getAttributes', 'emptyEl', 'appendContent', 'insertContent'].forEach(k => {
+        videojs[k] = function () {
+            log$1.warn(`videojs.${k}() is deprecated; use videojs.dom.${k}() instead`);
+            return Dom[k].apply(null, arguments);
+        };
+    });
+    videojs.computedStyle = deprecateForMajor(9, 'videojs.computedStyle', 'videojs.dom.computedStyle', computedStyle);
+
+    /**
+     * A reference to the {@link module:dom|DOM utility module} as an object.
+     *
+     * @type {Object}
+     * @see {@link module:dom|dom}
+     */
+    videojs.dom = Dom;
+
+    /**
+     * A reference to the {@link module:fn|fn utility module} as an object.
+     *
+     * @type {Object}
+     * @see {@link module:fn|fn}
+     */
+    videojs.fn = Fn;
+
+    /**
+     * A reference to the {@link module:num|num utility module} as an object.
+     *
+     * @type {Object}
+     * @see {@link module:num|num}
+     */
+    videojs.num = Num;
+
+    /**
+     * A reference to the {@link module:str|str utility module} as an object.
+     *
+     * @type {Object}
+     * @see {@link module:str|str}
+     */
+    videojs.str = Str;
+
+    /**
+     * A reference to the {@link module:url|URL utility module} as an object.
+     *
+     * @type {Object}
+     * @see {@link module:url|url}
+     */
+    videojs.url = Url;
+
+    createCommonjsModule(function (module, exports) {
+        /*! @name videojs-contrib-quality-levels @version 3.0.0 @license Apache-2.0 */
+        (function (global, factory) {
+            module.exports = factory(videojs) ;
+        })(commonjsGlobal, function (videojs) {
+
+            function _interopDefaultLegacy(e) {
+                return e && typeof e === 'object' && 'default' in e ? e : {
+                    'default': e
+                };
+            }
+            var videojs__default = /*#__PURE__*/_interopDefaultLegacy(videojs);
+
+            /**
+             * A single QualityLevel.
+             *
+             * interface QualityLevel {
+             *   readonly attribute DOMString id;
+             *            attribute DOMString label;
+             *   readonly attribute long width;
+             *   readonly attribute long height;
+             *   readonly attribute long bitrate;
+             *            attribute boolean enabled;
+             * };
+             *
+             * @class QualityLevel
+             */
+            class QualityLevel {
+                /**
+                 * Creates a QualityLevel
+                 *
+                 * @param {Representation|Object} representation The representation of the quality level
+                 * @param {string}   representation.id        Unique id of the QualityLevel
+                 * @param {number=}  representation.width     Resolution width of the QualityLevel
+                 * @param {number=}  representation.height    Resolution height of the QualityLevel
+                 * @param {number}   representation.bandwidth Bitrate of the QualityLevel
+                 * @param {number=}  representation.frameRate Frame-rate of the QualityLevel
+                 * @param {Function} representation.enabled   Callback to enable/disable QualityLevel
+                 */
+                constructor(representation) {
+                    let level = this; // eslint-disable-line
+
+                    level.id = representation.id;
+                    level.label = level.id;
+                    level.width = representation.width;
+                    level.height = representation.height;
+                    level.bitrate = representation.bandwidth;
+                    level.frameRate = representation.frameRate;
+                    level.enabled_ = representation.enabled;
+                    Object.defineProperty(level, 'enabled', {
+                        /**
+                         * Get whether the QualityLevel is enabled.
+                         *
+                         * @return {boolean} True if the QualityLevel is enabled.
+                         */
+                        get() {
+                            return level.enabled_();
+                        },
+                        /**
+                         * Enable or disable the QualityLevel.
+                         *
+                         * @param {boolean} enable true to enable QualityLevel, false to disable.
+                         */
+                        set(enable) {
+                            level.enabled_(enable);
+                        }
+                    });
+                    return level;
+                }
+            }
+
+            /**
+             * A list of QualityLevels.
+             *
+             * interface QualityLevelList : EventTarget {
+             *   getter QualityLevel (unsigned long index);
+             *   readonly attribute unsigned long length;
+             *   readonly attribute long selectedIndex;
+             *
+             *   void addQualityLevel(QualityLevel qualityLevel)
+             *   void removeQualityLevel(QualityLevel remove)
+             *   QualityLevel? getQualityLevelById(DOMString id);
+             *
+             *   attribute EventHandler onchange;
+             *   attribute EventHandler onaddqualitylevel;
+             *   attribute EventHandler onremovequalitylevel;
+             * };
+             *
+             * @extends videojs.EventTarget
+             * @class QualityLevelList
+             */
+
+            class QualityLevelList extends videojs__default['default'].EventTarget {
+                constructor() {
+                    super();
+                    let list = this; // eslint-disable-line
+
+                    list.levels_ = [];
+                    list.selectedIndex_ = -1;
+                    /**
+                     * Get the index of the currently selected QualityLevel.
+                     *
+                     * @returns {number} The index of the selected QualityLevel. -1 if none selected.
+                     * @readonly
+                     */
+
+                    Object.defineProperty(list, 'selectedIndex', {
+                        get() {
+                            return list.selectedIndex_;
+                        }
+                    });
+                    /**
+                     * Get the length of the list of QualityLevels.
+                     *
+                     * @returns {number} The length of the list.
+                     * @readonly
+                     */
+
+                    Object.defineProperty(list, 'length', {
+                        get() {
+                            return list.levels_.length;
+                        }
+                    });
+                    return list;
+                }
+                /**
+                 * Adds a quality level to the list.
+                 *
+                 * @param {Representation|Object} representation The representation of the quality level
+                 * @param {string}   representation.id        Unique id of the QualityLevel
+                 * @param {number=}  representation.width     Resolution width of the QualityLevel
+                 * @param {number=}  representation.height    Resolution height of the QualityLevel
+                 * @param {number}   representation.bandwidth Bitrate of the QualityLevel
+                 * @param {number=}  representation.frameRate Frame-rate of the QualityLevel
+                 * @param {Function} representation.enabled   Callback to enable/disable QualityLevel
+                 * @return {QualityLevel} the QualityLevel added to the list
+                 * @method addQualityLevel
+                 */
+
+                addQualityLevel(representation) {
+                    let qualityLevel = this.getQualityLevelById(representation.id); // Do not add duplicate quality levels
+
+                    if (qualityLevel) {
+                        return qualityLevel;
+                    }
+                    const index = this.levels_.length;
+                    qualityLevel = new QualityLevel(representation);
+                    if (!('' + index in this)) {
+                        Object.defineProperty(this, index, {
+                            get() {
+                                return this.levels_[index];
+                            }
+                        });
+                    }
+                    this.levels_.push(qualityLevel);
+                    this.trigger({
+                        qualityLevel,
+                        type: 'addqualitylevel'
+                    });
+                    return qualityLevel;
+                }
+                /**
+                 * Removes a quality level from the list.
+                 *
+                 * @param {QualityLevel} remove QualityLevel to remove to the list.
+                 * @return {QualityLevel|null} the QualityLevel removed or null if nothing removed
+                 * @method removeQualityLevel
+                 */
+
+                removeQualityLevel(qualityLevel) {
+                    let removed = null;
+                    for (let i = 0, l = this.length; i < l; i++) {
+                        if (this[i] === qualityLevel) {
+                            removed = this.levels_.splice(i, 1)[0];
+                            if (this.selectedIndex_ === i) {
+                                this.selectedIndex_ = -1;
+                            } else if (this.selectedIndex_ > i) {
+                                this.selectedIndex_--;
+                            }
+                            break;
+                        }
+                    }
+                    if (removed) {
+                        this.trigger({
+                            qualityLevel,
+                            type: 'removequalitylevel'
+                        });
+                    }
+                    return removed;
+                }
+                /**
+                 * Searches for a QualityLevel with the given id.
+                 *
+                 * @param {string} id The id of the QualityLevel to find.
+                 * @return {QualityLevel|null} The QualityLevel with id, or null if not found.
+                 * @method getQualityLevelById
+                 */
+
+                getQualityLevelById(id) {
+                    for (let i = 0, l = this.length; i < l; i++) {
+                        const level = this[i];
+                        if (level.id === id) {
+                            return level;
+                        }
+                    }
+                    return null;
+                }
+                /**
+                 * Resets the list of QualityLevels to empty
+                 *
+                 * @method dispose
+                 */
+
+                dispose() {
+                    this.selectedIndex_ = -1;
+                    this.levels_.length = 0;
+                }
+            }
+            /**
+             * change - The selected QualityLevel has changed.
+             * addqualitylevel - A QualityLevel has been added to the QualityLevelList.
+             * removequalitylevel - A QualityLevel has been removed from the QualityLevelList.
+             */
+
+            QualityLevelList.prototype.allowedEvents_ = {
+                change: 'change',
+                addqualitylevel: 'addqualitylevel',
+                removequalitylevel: 'removequalitylevel'
+            }; // emulate attribute EventHandler support to allow for feature detection
+
+            for (const event in QualityLevelList.prototype.allowedEvents_) {
+                QualityLevelList.prototype['on' + event] = null;
+            }
+            var version = "3.0.0";
+            const registerPlugin = videojs__default['default'].registerPlugin || videojs__default['default'].plugin;
+            /**
+             * Initialization function for the qualityLevels plugin. Sets up the QualityLevelList and
+             * event handlers.
+             *
+             * @param {Player} player Player object.
+             * @param {Object} options Plugin options object.
+             * @function initPlugin
+             */
+
+            const initPlugin = function (player, options) {
+                const originalPluginFn = player.qualityLevels;
+                const qualityLevelList = new QualityLevelList();
+                const disposeHandler = function () {
+                    qualityLevelList.dispose();
+                    player.qualityLevels = originalPluginFn;
+                    player.off('dispose', disposeHandler);
+                };
+                player.on('dispose', disposeHandler);
+                player.qualityLevels = () => qualityLevelList;
+                player.qualityLevels.VERSION = version;
+                return qualityLevelList;
+            };
+            /**
+             * A video.js plugin.
+             *
+             * In the plugin function, the value of `this` is a video.js `Player`
+             * instance. You cannot rely on the player being in a "ready" state here,
+             * depending on how the plugin is invoked. This may or may not be important
+             * to you; if not, remove the wait for "ready"!
+             *
+             * @param {Object} options Plugin options object
+             * @function qualityLevels
+             */
+
+            const qualityLevels = function (options) {
+                return initPlugin(this, videojs__default['default'].mergeOptions({}, options));
+            }; // Register the plugin with video.js.
+
+            registerPlugin('qualityLevels', qualityLevels); // Include the version number.
+
+            qualityLevels.VERSION = version;
+            return qualityLevels;
+        });
+    });
+
+    var urlToolkit = createCommonjsModule(function (module, exports) {
+        // see https://tools.ietf.org/html/rfc1808
+
+        (function (root) {
+            var URL_REGEX = /^(?=((?:[a-zA-Z0-9+\-.]+:)?))\1(?=((?:\/\/[^\/?#]*)?))\2(?=((?:(?:[^?#\/]*\/)*[^;?#\/]*)?))\3((?:;[^?#]*)?)(\?[^#]*)?(#[^]*)?$/;
+            var FIRST_SEGMENT_REGEX = /^(?=([^\/?#]*))\1([^]*)$/;
+            var SLASH_DOT_REGEX = /(?:\/|^)\.(?=\/)/g;
+            var SLASH_DOT_DOT_REGEX = /(?:\/|^)\.\.\/(?!\.\.\/)[^\/]*(?=\/)/g;
+            var URLToolkit = {
+                // If opts.alwaysNormalize is true then the path will always be normalized even when it starts with / or //
+                // E.g
+                // With opts.alwaysNormalize = false (default, spec compliant)
+                // http://a.com/b/cd + /e/f/../g => http://a.com/e/f/../g
+                // With opts.alwaysNormalize = true (not spec compliant)
+                // http://a.com/b/cd + /e/f/../g => http://a.com/e/g
+                buildAbsoluteURL: function (baseURL, relativeURL, opts) {
+                    opts = opts || {};
+                    // remove any remaining space and CRLF
+                    baseURL = baseURL.trim();
+                    relativeURL = relativeURL.trim();
+                    if (!relativeURL) {
+                        // 2a) If the embedded URL is entirely empty, it inherits the
+                        // entire base URL (i.e., is set equal to the base URL)
+                        // and we are done.
+                        if (!opts.alwaysNormalize) {
+                            return baseURL;
+                        }
+                        var basePartsForNormalise = URLToolkit.parseURL(baseURL);
+                        if (!basePartsForNormalise) {
+                            throw new Error('Error trying to parse base URL.');
+                        }
+                        basePartsForNormalise.path = URLToolkit.normalizePath(basePartsForNormalise.path);
+                        return URLToolkit.buildURLFromParts(basePartsForNormalise);
+                    }
+                    var relativeParts = URLToolkit.parseURL(relativeURL);
+                    if (!relativeParts) {
+                        throw new Error('Error trying to parse relative URL.');
+                    }
+                    if (relativeParts.scheme) {
+                        // 2b) If the embedded URL starts with a scheme name, it is
+                        // interpreted as an absolute URL and we are done.
+                        if (!opts.alwaysNormalize) {
+                            return relativeURL;
+                        }
+                        relativeParts.path = URLToolkit.normalizePath(relativeParts.path);
+                        return URLToolkit.buildURLFromParts(relativeParts);
+                    }
+                    var baseParts = URLToolkit.parseURL(baseURL);
+                    if (!baseParts) {
+                        throw new Error('Error trying to parse base URL.');
+                    }
+                    if (!baseParts.netLoc && baseParts.path && baseParts.path[0] !== '/') {
+                        // If netLoc missing and path doesn't start with '/', assume everthing before the first '/' is the netLoc
+                        // This causes 'example.com/a' to be handled as '//example.com/a' instead of '/example.com/a'
+                        var pathParts = FIRST_SEGMENT_REGEX.exec(baseParts.path);
+                        baseParts.netLoc = pathParts[1];
+                        baseParts.path = pathParts[2];
+                    }
+                    if (baseParts.netLoc && !baseParts.path) {
+                        baseParts.path = '/';
+                    }
+                    var builtParts = {
+                        // 2c) Otherwise, the embedded URL inherits the scheme of
+                        // the base URL.
+                        scheme: baseParts.scheme,
+                        netLoc: relativeParts.netLoc,
+                        path: null,
+                        params: relativeParts.params,
+                        query: relativeParts.query,
+                        fragment: relativeParts.fragment
+                    };
+                    if (!relativeParts.netLoc) {
+                        // 3) If the embedded URL's <net_loc> is non-empty, we skip to
+                        // Step 7.  Otherwise, the embedded URL inherits the <net_loc>
+                        // (if any) of the base URL.
+                        builtParts.netLoc = baseParts.netLoc;
+                        // 4) If the embedded URL path is preceded by a slash "/", the
+                        // path is not relative and we skip to Step 7.
+                        if (relativeParts.path[0] !== '/') {
+                            if (!relativeParts.path) {
+                                // 5) If the embedded URL path is empty (and not preceded by a
+                                // slash), then the embedded URL inherits the base URL path
+                                builtParts.path = baseParts.path;
+                                // 5a) if the embedded URL's <params> is non-empty, we skip to
+                                // step 7; otherwise, it inherits the <params> of the base
+                                // URL (if any) and
+                                if (!relativeParts.params) {
+                                    builtParts.params = baseParts.params;
+                                    // 5b) if the embedded URL's <query> is non-empty, we skip to
+                                    // step 7; otherwise, it inherits the <query> of the base
+                                    // URL (if any) and we skip to step 7.
+                                    if (!relativeParts.query) {
+                                        builtParts.query = baseParts.query;
+                                    }
+                                }
+                            } else {
+                                // 6) The last segment of the base URL's path (anything
+                                // following the rightmost slash "/", or the entire path if no
+                                // slash is present) is removed and the embedded URL's path is
+                                // appended in its place.
+                                var baseURLPath = baseParts.path;
+                                var newPath = baseURLPath.substring(0, baseURLPath.lastIndexOf('/') + 1) + relativeParts.path;
+                                builtParts.path = URLToolkit.normalizePath(newPath);
+                            }
+                        }
+                    }
+                    if (builtParts.path === null) {
+                        builtParts.path = opts.alwaysNormalize ? URLToolkit.normalizePath(relativeParts.path) : relativeParts.path;
+                    }
+                    return URLToolkit.buildURLFromParts(builtParts);
+                },
+                parseURL: function (url) {
+                    var parts = URL_REGEX.exec(url);
+                    if (!parts) {
+                        return null;
+                    }
+                    return {
+                        scheme: parts[1] || '',
+                        netLoc: parts[2] || '',
+                        path: parts[3] || '',
+                        params: parts[4] || '',
+                        query: parts[5] || '',
+                        fragment: parts[6] || ''
+                    };
+                },
+                normalizePath: function (path) {
+                    // The following operations are
+                    // then applied, in order, to the new path:
+                    // 6a) All occurrences of "./", where "." is a complete path
+                    // segment, are removed.
+                    // 6b) If the path ends with "." as a complete path segment,
+                    // that "." is removed.
+                    path = path.split('').reverse().join('').replace(SLASH_DOT_REGEX, '');
+                    // 6c) All occurrences of "<segment>/../", where <segment> is a
+                    // complete path segment not equal to "..", are removed.
+                    // Removal of these path segments is performed iteratively,
+                    // removing the leftmost matching pattern on each iteration,
+                    // until no matching pattern remains.
+                    // 6d) If the path ends with "<segment>/..", where <segment> is a
+                    // complete path segment not equal to "..", that
+                    // "<segment>/.." is removed.
+                    while (path.length !== (path = path.replace(SLASH_DOT_DOT_REGEX, '')).length) {}
+                    return path.split('').reverse().join('');
+                },
+                buildURLFromParts: function (parts) {
+                    return parts.scheme + parts.netLoc + parts.path + parts.params + parts.query + parts.fragment;
+                }
+            };
+            module.exports = URLToolkit;
+        })();
+    });
+
+    var DEFAULT_LOCATION$1 = 'http://example.com';
+    var resolveUrl$2 = function resolveUrl(baseUrl, relativeUrl) {
+        // return early if we don't need to resolve
+        if (/^[a-z]+:/i.test(relativeUrl)) {
+            return relativeUrl;
+        } // if baseUrl is a data URI, ignore it and resolve everything relative to window.location
+
+        if (/^data:/.test(baseUrl)) {
+            baseUrl = window.location && window.location.href || '';
+        } // IE11 supports URL but not the URL constructor
+        // feature detect the behavior we want
+
+        var nativeURL = typeof window.URL === 'function';
+        var protocolLess = /^\/\//.test(baseUrl); // remove location if window.location isn't available (i.e. we're in node)
+        // and if baseUrl isn't an absolute url
+
+        var removeLocation = !window.location && !/\/\//i.test(baseUrl); // if the base URL is relative then combine with the current location
+
+        if (nativeURL) {
+            baseUrl = new window.URL(baseUrl, window.location || DEFAULT_LOCATION$1);
+        } else if (!/\/\//i.test(baseUrl)) {
+            baseUrl = urlToolkit.buildAbsoluteURL(window.location && window.location.href || '', baseUrl);
+        }
+        if (nativeURL) {
+            var newUrl = new URL(relativeUrl, baseUrl); // if we're a protocol-less url, remove the protocol
+            // and if we're location-less, remove the location
+            // otherwise, return the url unmodified
+
+            if (removeLocation) {
+                return newUrl.href.slice(DEFAULT_LOCATION$1.length);
+            } else if (protocolLess) {
+                return newUrl.href.slice(newUrl.protocol.length);
+            }
+            return newUrl.href;
+        }
+        return urlToolkit.buildAbsoluteURL(baseUrl, relativeUrl);
+    };
+
+    /**
+     * @file stream.js
+     */
+
+    /**
+     * A lightweight readable stream implemention that handles event dispatching.
+     *
+     * @class Stream
+     */
+    var Stream = /*#__PURE__*/function () {
+        function Stream() {
+            this.listeners = {};
+        }
+        /**
+         * Add a listener for a specified event type.
+         *
+         * @param {string} type the event name
+         * @param {Function} listener the callback to be invoked when an event of
+         * the specified type occurs
+         */
+
+        var _proto = Stream.prototype;
+        _proto.on = function on(type, listener) {
+            if (!this.listeners[type]) {
+                this.listeners[type] = [];
+            }
+            this.listeners[type].push(listener);
+        }
+        /**
+         * Remove a listener for a specified event type.
+         *
+         * @param {string} type the event name
+         * @param {Function} listener  a function previously registered for this
+         * type of event through `on`
+         * @return {boolean} if we could turn it off or not
+         */;
+
+        _proto.off = function off(type, listener) {
+            if (!this.listeners[type]) {
+                return false;
+            }
+            var index = this.listeners[type].indexOf(listener); // TODO: which is better?
+            // In Video.js we slice listener functions
+            // on trigger so that it does not mess up the order
+            // while we loop through.
+            //
+            // Here we slice on off so that the loop in trigger
+            // can continue using it's old reference to loop without
+            // messing up the order.
+
+            this.listeners[type] = this.listeners[type].slice(0);
+            this.listeners[type].splice(index, 1);
+            return index > -1;
+        }
+        /**
+         * Trigger an event of the specified type on this stream. Any additional
+         * arguments to this function are passed as parameters to event listeners.
+         *
+         * @param {string} type the event name
+         */;
+
+        _proto.trigger = function trigger(type) {
+            var callbacks = this.listeners[type];
+            if (!callbacks) {
+                return;
+            } // Slicing the arguments on every invocation of this method
+            // can add a significant amount of overhead. Avoid the
+            // intermediate object creation for the common case of a
+            // single callback argument
+
+            if (arguments.length === 2) {
+                var length = callbacks.length;
+                for (var i = 0; i < length; ++i) {
+                    callbacks[i].call(this, arguments[1]);
+                }
+            } else {
+                var args = Array.prototype.slice.call(arguments, 1);
+                var _length = callbacks.length;
+                for (var _i = 0; _i < _length; ++_i) {
+                    callbacks[_i].apply(this, args);
+                }
+            }
+        }
+        /**
+         * Destroys the stream and cleans up.
+         */;
+
+        _proto.dispose = function dispose() {
+            this.listeners = {};
+        }
+        /**
+         * Forwards all `data` events on this stream to the destination stream. The
+         * destination stream should provide a method `push` to receive the data
+         * events as they arrive.
+         *
+         * @param {Stream} destination the stream that will receive all `data` events
+         * @see http://nodejs.org/api/stream.html#stream_readable_pipe_destination_options
+         */;
+
+        _proto.pipe = function pipe(destination) {
+            this.on('data', function (data) {
+                destination.push(data);
+            });
+        };
+        return Stream;
+    }();
+
+    var atob$1 = function atob(s) {
+        return window.atob ? window.atob(s) : Buffer.from(s, 'base64').toString('binary');
+    };
+    function decodeB64ToUint8Array$1(b64Text) {
+        var decodedString = atob$1(b64Text);
+        var array = new Uint8Array(decodedString.length);
+        for (var i = 0; i < decodedString.length; i++) {
+            array[i] = decodedString.charCodeAt(i);
+        }
+        return array;
+    }
+
+    /*! @name m3u8-parser @version 6.0.0 @license Apache-2.0 */
+
+    /**
+     * @file m3u8/line-stream.js
+     */
+    /**
+     * A stream that buffers string input and generates a `data` event for each
+     * line.
+     *
+     * @class LineStream
+     * @extends Stream
+     */
+
+    class LineStream extends Stream {
+        constructor() {
+            super();
+            this.buffer = '';
+        }
+        /**
+         * Add new data to be parsed.
+         *
+         * @param {string} data the text to process
+         */
+
+        push(data) {
+            let nextNewline;
+            this.buffer += data;
+            nextNewline = this.buffer.indexOf('\n');
+            for (; nextNewline > -1; nextNewline = this.buffer.indexOf('\n')) {
+                this.trigger('data', this.buffer.substring(0, nextNewline));
+                this.buffer = this.buffer.substring(nextNewline + 1);
+            }
+        }
+    }
+    const TAB = String.fromCharCode(0x09);
+    const parseByterange = function (byterangeString) {
+        // optionally match and capture 0+ digits before `@`
+        // optionally match and capture 0+ digits after `@`
+        const match = /([0-9.]*)?@?([0-9.]*)?/.exec(byterangeString || '');
+        const result = {};
+        if (match[1]) {
+            result.length = parseInt(match[1], 10);
+        }
+        if (match[2]) {
+            result.offset = parseInt(match[2], 10);
+        }
+        return result;
+    };
+    /**
+     * "forgiving" attribute list psuedo-grammar:
+     * attributes -> keyvalue (',' keyvalue)*
+     * keyvalue   -> key '=' value
+     * key        -> [^=]*
+     * value      -> '"' [^"]* '"' | [^,]*
+     */
+
+    const attributeSeparator = function () {
+        const key = '[^=]*';
+        const value = '"[^"]*"|[^,]*';
+        const keyvalue = '(?:' + key + ')=(?:' + value + ')';
+        return new RegExp('(?:^|,)(' + keyvalue + ')');
+    };
+    /**
+     * Parse attributes from a line given the separator
+     *
+     * @param {string} attributes the attribute line to parse
+     */
+
+    const parseAttributes$1 = function (attributes) {
+        const result = {};
+        if (!attributes) {
+            return result;
+        } // split the string using attributes as the separator
+
+        const attrs = attributes.split(attributeSeparator());
+        let i = attrs.length;
+        let attr;
+        while (i--) {
+            // filter out unmatched portions of the string
+            if (attrs[i] === '') {
+                continue;
+            } // split the key and value
+
+            attr = /([^=]*)=(.*)/.exec(attrs[i]).slice(1); // trim whitespace and remove optional quotes around the value
+
+            attr[0] = attr[0].replace(/^\s+|\s+$/g, '');
+            attr[1] = attr[1].replace(/^\s+|\s+$/g, '');
+            attr[1] = attr[1].replace(/^['"](.*)['"]$/g, '$1');
+            result[attr[0]] = attr[1];
+        }
+        return result;
+    };
+    /**
+     * A line-level M3U8 parser event stream. It expects to receive input one
+     * line at a time and performs a context-free parse of its contents. A stream
+     * interpretation of a manifest can be useful if the manifest is expected to
+     * be too large to fit comfortably into memory or the entirety of the input
+     * is not immediately available. Otherwise, it's probably much easier to work
+     * with a regular `Parser` object.
+     *
+     * Produces `data` events with an object that captures the parser's
+     * interpretation of the input. That object has a property `tag` that is one
+     * of `uri`, `comment`, or `tag`. URIs only have a single additional
+     * property, `line`, which captures the entirety of the input without
+     * interpretation. Comments similarly have a single additional property
+     * `text` which is the input without the leading `#`.
+     *
+     * Tags always have a property `tagType` which is the lower-cased version of
+     * the M3U8 directive without the `#EXT` or `#EXT-X-` prefix. For instance,
+     * `#EXT-X-MEDIA-SEQUENCE` becomes `media-sequence` when parsed. Unrecognized
+     * tags are given the tag type `unknown` and a single additional property
+     * `data` with the remainder of the input.
+     *
+     * @class ParseStream
+     * @extends Stream
+     */
+
+    class ParseStream extends Stream {
+        constructor() {
+            super();
+            this.customParsers = [];
+            this.tagMappers = [];
+        }
+        /**
+         * Parses an additional line of input.
+         *
+         * @param {string} line a single line of an M3U8 file to parse
+         */
+
+        push(line) {
+            let match;
+            let event; // strip whitespace
+
+            line = line.trim();
+            if (line.length === 0) {
+                // ignore empty lines
+                return;
+            } // URIs
+
+            if (line[0] !== '#') {
+                this.trigger('data', {
+                    type: 'uri',
+                    uri: line
+                });
+                return;
+            } // map tags
+
+            const newLines = this.tagMappers.reduce((acc, mapper) => {
+                const mappedLine = mapper(line); // skip if unchanged
+
+                if (mappedLine === line) {
+                    return acc;
+                }
+                return acc.concat([mappedLine]);
+            }, [line]);
+            newLines.forEach(newLine => {
+                for (let i = 0; i < this.customParsers.length; i++) {
+                    if (this.customParsers[i].call(this, newLine)) {
+                        return;
+                    }
+                } // Comments
+
+                if (newLine.indexOf('#EXT') !== 0) {
+                    this.trigger('data', {
+                        type: 'comment',
+                        text: newLine.slice(1)
+                    });
+                    return;
+                } // strip off any carriage returns here so the regex matching
+                // doesn't have to account for them.
+
+                newLine = newLine.replace('\r', ''); // Tags
+
+                match = /^#EXTM3U/.exec(newLine);
+                if (match) {
+                    this.trigger('data', {
+                        type: 'tag',
+                        tagType: 'm3u'
+                    });
+                    return;
+                }
+                match = /^#EXTINF:([0-9\.]*)?,?(.*)?$/.exec(newLine);
+                if (match) {
+                    event = {
+                        type: 'tag',
+                        tagType: 'inf'
+                    };
+                    if (match[1]) {
+                        event.duration = parseFloat(match[1]);
+                    }
+                    if (match[2]) {
+                        event.title = match[2];
+                    }
+                    this.trigger('data', event);
+                    return;
+                }
+                match = /^#EXT-X-TARGETDURATION:([0-9.]*)?/.exec(newLine);
+                if (match) {
+                    event = {
+                        type: 'tag',
+                        tagType: 'targetduration'
+                    };
+                    if (match[1]) {
+                        event.duration = parseInt(match[1], 10);
+                    }
+                    this.trigger('data', event);
+                    return;
+                }
+                match = /^#EXT-X-VERSION:([0-9.]*)?/.exec(newLine);
+                if (match) {
+                    event = {
+                        type: 'tag',
+                        tagType: 'version'
+                    };
+                    if (match[1]) {
+                        event.version = parseInt(match[1], 10);
+                    }
+                    this.trigger('data', event);
+                    return;
+                }
+                match = /^#EXT-X-MEDIA-SEQUENCE:(\-?[0-9.]*)?/.exec(newLine);
+                if (match) {
+                    event = {
+                        type: 'tag',
+                        tagType: 'media-sequence'
+                    };
+                    if (match[1]) {
+                        event.number = parseInt(match[1], 10);
+                    }
+                    this.trigger('data', event);
+                    return;
+                }
+                match = /^#EXT-X-DISCONTINUITY-SEQUENCE:(\-?[0-9.]*)?/.exec(newLine);
+                if (match) {
+                    event = {
+                        type: 'tag',
+                        tagType: 'discontinuity-sequence'
+                    };
+                    if (match[1]) {
+                        event.number = parseInt(match[1], 10);
+                    }
+                    this.trigger('data', event);
+                    return;
+                }
+                match = /^#EXT-X-PLAYLIST-TYPE:(.*)?$/.exec(newLine);
+                if (match) {
+                    event = {
+                        type: 'tag',
+                        tagType: 'playlist-type'
+                    };
+                    if (match[1]) {
+                        event.playlistType = match[1];
+                    }
+                    this.trigger('data', event);
+                    return;
+                }
+                match = /^#EXT-X-BYTERANGE:(.*)?$/.exec(newLine);
+                if (match) {
+                    event = _extends$1(parseByterange(match[1]), {
+                        type: 'tag',
+                        tagType: 'byterange'
+                    });
+                    this.trigger('data', event);
+                    return;
+                }
+                match = /^#EXT-X-ALLOW-CACHE:(YES|NO)?/.exec(newLine);
+                if (match) {
+                    event = {
+                        type: 'tag',
+                        tagType: 'allow-cache'
+                    };
+                    if (match[1]) {
+                        event.allowed = !/NO/.test(match[1]);
+                    }
+                    this.trigger('data', event);
+                    return;
+                }
+                match = /^#EXT-X-MAP:(.*)$/.exec(newLine);
+                if (match) {
+                    event = {
+                        type: 'tag',
+                        tagType: 'map'
+                    };
+                    if (match[1]) {
+                        const attributes = parseAttributes$1(match[1]);
+                        if (attributes.URI) {
+                            event.uri = attributes.URI;
+                        }
+                        if (attributes.BYTERANGE) {
+                            event.byterange = parseByterange(attributes.BYTERANGE);
+                        }
+                    }
+                    this.trigger('data', event);
+                    return;
+                }
+                match = /^#EXT-X-STREAM-INF:(.*)$/.exec(newLine);
+                if (match) {
+                    event = {
+                        type: 'tag',
+                        tagType: 'stream-inf'
+                    };
+                    if (match[1]) {
+                        event.attributes = parseAttributes$1(match[1]);
+                        if (event.attributes.RESOLUTION) {
+                            const split = event.attributes.RESOLUTION.split('x');
+                            const resolution = {};
+                            if (split[0]) {
+                                resolution.width = parseInt(split[0], 10);
+                            }
+                            if (split[1]) {
+                                resolution.height = parseInt(split[1], 10);
+                            }
+                            event.attributes.RESOLUTION = resolution;
+                        }
+                        if (event.attributes.BANDWIDTH) {
+                            event.attributes.BANDWIDTH = parseInt(event.attributes.BANDWIDTH, 10);
+                        }
+                        if (event.attributes['FRAME-RATE']) {
+                            event.attributes['FRAME-RATE'] = parseFloat(event.attributes['FRAME-RATE']);
+                        }
+                        if (event.attributes['PROGRAM-ID']) {
+                            event.attributes['PROGRAM-ID'] = parseInt(event.attributes['PROGRAM-ID'], 10);
+                        }
+                    }
+                    this.trigger('data', event);
+                    return;
+                }
+                match = /^#EXT-X-MEDIA:(.*)$/.exec(newLine);
+                if (match) {
+                    event = {
+                        type: 'tag',
+                        tagType: 'media'
+                    };
+                    if (match[1]) {
+                        event.attributes = parseAttributes$1(match[1]);
+                    }
+                    this.trigger('data', event);
+                    return;
+                }
+                match = /^#EXT-X-ENDLIST/.exec(newLine);
+                if (match) {
+                    this.trigger('data', {
+                        type: 'tag',
+                        tagType: 'endlist'
+                    });
+                    return;
+                }
+                match = /^#EXT-X-DISCONTINUITY/.exec(newLine);
+                if (match) {
+                    this.trigger('data', {
+                        type: 'tag',
+                        tagType: 'discontinuity'
+                    });
+                    return;
+                }
+                match = /^#EXT-X-PROGRAM-DATE-TIME:(.*)$/.exec(newLine);
+                if (match) {
+                    event = {
+                        type: 'tag',
+                        tagType: 'program-date-time'
+                    };
+                    if (match[1]) {
+                        event.dateTimeString = match[1];
+                        event.dateTimeObject = new Date(match[1]);
+                    }
+                    this.trigger('data', event);
+                    return;
+                }
+                match = /^#EXT-X-KEY:(.*)$/.exec(newLine);
+                if (match) {
+                    event = {
+                        type: 'tag',
+                        tagType: 'key'
+                    };
+                    if (match[1]) {
+                        event.attributes = parseAttributes$1(match[1]); // parse the IV string into a Uint32Array
+
+                        if (event.attributes.IV) {
+                            if (event.attributes.IV.substring(0, 2).toLowerCase() === '0x') {
+                                event.attributes.IV = event.attributes.IV.substring(2);
+                            }
+                            event.attributes.IV = event.attributes.IV.match(/.{8}/g);
+                            event.attributes.IV[0] = parseInt(event.attributes.IV[0], 16);
+                            event.attributes.IV[1] = parseInt(event.attributes.IV[1], 16);
+                            event.attributes.IV[2] = parseInt(event.attributes.IV[2], 16);
+                            event.attributes.IV[3] = parseInt(event.attributes.IV[3], 16);
+                            event.attributes.IV = new Uint32Array(event.attributes.IV);
+                        }
+                    }
+                    this.trigger('data', event);
+                    return;
+                }
+                match = /^#EXT-X-START:(.*)$/.exec(newLine);
+                if (match) {
+                    event = {
+                        type: 'tag',
+                        tagType: 'start'
+                    };
+                    if (match[1]) {
+                        event.attributes = parseAttributes$1(match[1]);
+                        event.attributes['TIME-OFFSET'] = parseFloat(event.attributes['TIME-OFFSET']);
+                        event.attributes.PRECISE = /YES/.test(event.attributes.PRECISE);
+                    }
+                    this.trigger('data', event);
+                    return;
+                }
+                match = /^#EXT-X-CUE-OUT-CONT:(.*)?$/.exec(newLine);
+                if (match) {
+                    event = {
+                        type: 'tag',
+                        tagType: 'cue-out-cont'
+                    };
+                    if (match[1]) {
+                        event.data = match[1];
+                    } else {
+                        event.data = '';
+                    }
+                    this.trigger('data', event);
+                    return;
+                }
+                match = /^#EXT-X-CUE-OUT:(.*)?$/.exec(newLine);
+                if (match) {
+                    event = {
+                        type: 'tag',
+                        tagType: 'cue-out'
+                    };
+                    if (match[1]) {
+                        event.data = match[1];
+                    } else {
+                        event.data = '';
+                    }
+                    this.trigger('data', event);
+                    return;
+                }
+                match = /^#EXT-X-CUE-IN:(.*)?$/.exec(newLine);
+                if (match) {
+                    event = {
+                        type: 'tag',
+                        tagType: 'cue-in'
+                    };
+                    if (match[1]) {
+                        event.data = match[1];
+                    } else {
+                        event.data = '';
+                    }
+                    this.trigger('data', event);
+                    return;
+                }
+                match = /^#EXT-X-SKIP:(.*)$/.exec(newLine);
+                if (match && match[1]) {
+                    event = {
+                        type: 'tag',
+                        tagType: 'skip'
+                    };
+                    event.attributes = parseAttributes$1(match[1]);
+                    if (event.attributes.hasOwnProperty('SKIPPED-SEGMENTS')) {
+                        event.attributes['SKIPPED-SEGMENTS'] = parseInt(event.attributes['SKIPPED-SEGMENTS'], 10);
+                    }
+                    if (event.attributes.hasOwnProperty('RECENTLY-REMOVED-DATERANGES')) {
+                        event.attributes['RECENTLY-REMOVED-DATERANGES'] = event.attributes['RECENTLY-REMOVED-DATERANGES'].split(TAB);
+                    }
+                    this.trigger('data', event);
+                    return;
+                }
+                match = /^#EXT-X-PART:(.*)$/.exec(newLine);
+                if (match && match[1]) {
+                    event = {
+                        type: 'tag',
+                        tagType: 'part'
+                    };
+                    event.attributes = parseAttributes$1(match[1]);
+                    ['DURATION'].forEach(function (key) {
+                        if (event.attributes.hasOwnProperty(key)) {
+                            event.attributes[key] = parseFloat(event.attributes[key]);
+                        }
+                    });
+                    ['INDEPENDENT', 'GAP'].forEach(function (key) {
+                        if (event.attributes.hasOwnProperty(key)) {
+                            event.attributes[key] = /YES/.test(event.attributes[key]);
+                        }
+                    });
+                    if (event.attributes.hasOwnProperty('BYTERANGE')) {
+                        event.attributes.byterange = parseByterange(event.attributes.BYTERANGE);
+                    }
+                    this.trigger('data', event);
+                    return;
+                }
+                match = /^#EXT-X-SERVER-CONTROL:(.*)$/.exec(newLine);
+                if (match && match[1]) {
+                    event = {
+                        type: 'tag',
+                        tagType: 'server-control'
+                    };
+                    event.attributes = parseAttributes$1(match[1]);
+                    ['CAN-SKIP-UNTIL', 'PART-HOLD-BACK', 'HOLD-BACK'].forEach(function (key) {
+                        if (event.attributes.hasOwnProperty(key)) {
+                            event.attributes[key] = parseFloat(event.attributes[key]);
+                        }
+                    });
+                    ['CAN-SKIP-DATERANGES', 'CAN-BLOCK-RELOAD'].forEach(function (key) {
+                        if (event.attributes.hasOwnProperty(key)) {
+                            event.attributes[key] = /YES/.test(event.attributes[key]);
+                        }
+                    });
+                    this.trigger('data', event);
+                    return;
+                }
+                match = /^#EXT-X-PART-INF:(.*)$/.exec(newLine);
+                if (match && match[1]) {
+                    event = {
+                        type: 'tag',
+                        tagType: 'part-inf'
+                    };
+                    event.attributes = parseAttributes$1(match[1]);
+                    ['PART-TARGET'].forEach(function (key) {
+                        if (event.attributes.hasOwnProperty(key)) {
+                            event.attributes[key] = parseFloat(event.attributes[key]);
+                        }
+                    });
+                    this.trigger('data', event);
+                    return;
+                }
+                match = /^#EXT-X-PRELOAD-HINT:(.*)$/.exec(newLine);
+                if (match && match[1]) {
+                    event = {
+                        type: 'tag',
+                        tagType: 'preload-hint'
+                    };
+                    event.attributes = parseAttributes$1(match[1]);
+                    ['BYTERANGE-START', 'BYTERANGE-LENGTH'].forEach(function (key) {
+                        if (event.attributes.hasOwnProperty(key)) {
+                            event.attributes[key] = parseInt(event.attributes[key], 10);
+                            const subkey = key === 'BYTERANGE-LENGTH' ? 'length' : 'offset';
+                            event.attributes.byterange = event.attributes.byterange || {};
+                            event.attributes.byterange[subkey] = event.attributes[key]; // only keep the parsed byterange object.
+
+                            delete event.attributes[key];
+                        }
+                    });
+                    this.trigger('data', event);
+                    return;
+                }
+                match = /^#EXT-X-RENDITION-REPORT:(.*)$/.exec(newLine);
+                if (match && match[1]) {
+                    event = {
+                        type: 'tag',
+                        tagType: 'rendition-report'
+                    };
+                    event.attributes = parseAttributes$1(match[1]);
+                    ['LAST-MSN', 'LAST-PART'].forEach(function (key) {
+                        if (event.attributes.hasOwnProperty(key)) {
+                            event.attributes[key] = parseInt(event.attributes[key], 10);
+                        }
+                    });
+                    this.trigger('data', event);
+                    return;
+                } // unknown tag type
+
+                this.trigger('data', {
+                    type: 'tag',
+                    data: newLine.slice(4)
+                });
+            });
+        }
+        /**
+         * Add a parser for custom headers
+         *
+         * @param {Object}   options              a map of options for the added parser
+         * @param {RegExp}   options.expression   a regular expression to match the custom header
+         * @param {string}   options.customType   the custom type to register to the output
+         * @param {Function} [options.dataParser] function to parse the line into an object
+         * @param {boolean}  [options.segment]    should tag data be attached to the segment object
+         */
+
+        addParser({
+                      expression,
+                      customType,
+                      dataParser,
+                      segment
+                  }) {
+            if (typeof dataParser !== 'function') {
+                dataParser = line => line;
+            }
+            this.customParsers.push(line => {
+                const match = expression.exec(line);
+                if (match) {
+                    this.trigger('data', {
+                        type: 'custom',
+                        data: dataParser(line),
+                        customType,
+                        segment
+                    });
+                    return true;
+                }
+            });
+        }
+        /**
+         * Add a custom header mapper
+         *
+         * @param {Object}   options
+         * @param {RegExp}   options.expression   a regular expression to match the custom header
+         * @param {Function} options.map          function to translate tag into a different tag
+         */
+
+        addTagMapper({
+                         expression,
+                         map
+                     }) {
+            const mapFn = line => {
+                if (expression.test(line)) {
+                    return map(line);
+                }
+                return line;
+            };
+            this.tagMappers.push(mapFn);
+        }
+    }
+    const camelCase = str => str.toLowerCase().replace(/-(\w)/g, a => a[1].toUpperCase());
+    const camelCaseKeys = function (attributes) {
+        const result = {};
+        Object.keys(attributes).forEach(function (key) {
+            result[camelCase(key)] = attributes[key];
+        });
+        return result;
+    }; // set SERVER-CONTROL hold back based upon targetDuration and partTargetDuration
+    // we need this helper because defaults are based upon targetDuration and
+    // partTargetDuration being set, but they may not be if SERVER-CONTROL appears before
+    // target durations are set.
+
+    const setHoldBack = function (manifest) {
+        const {
+            serverControl,
+            targetDuration,
+            partTargetDuration
+        } = manifest;
+        if (!serverControl) {
+            return;
+        }
+        const tag = '#EXT-X-SERVER-CONTROL';
+        const hb = 'holdBack';
+        const phb = 'partHoldBack';
+        const minTargetDuration = targetDuration && targetDuration * 3;
+        const minPartDuration = partTargetDuration && partTargetDuration * 2;
+        if (targetDuration && !serverControl.hasOwnProperty(hb)) {
+            serverControl[hb] = minTargetDuration;
+            this.trigger('info', {
+                message: `${tag} defaulting HOLD-BACK to targetDuration * 3 (${minTargetDuration}).`
+            });
+        }
+        if (minTargetDuration && serverControl[hb] < minTargetDuration) {
+            this.trigger('warn', {
+                message: `${tag} clamping HOLD-BACK (${serverControl[hb]}) to targetDuration * 3 (${minTargetDuration})`
+            });
+            serverControl[hb] = minTargetDuration;
+        } // default no part hold back to part target duration * 3
+
+        if (partTargetDuration && !serverControl.hasOwnProperty(phb)) {
+            serverControl[phb] = partTargetDuration * 3;
+            this.trigger('info', {
+                message: `${tag} defaulting PART-HOLD-BACK to partTargetDuration * 3 (${serverControl[phb]}).`
+            });
+        } // if part hold back is too small default it to part target duration * 2
+
+        if (partTargetDuration && serverControl[phb] < minPartDuration) {
+            this.trigger('warn', {
+                message: `${tag} clamping PART-HOLD-BACK (${serverControl[phb]}) to partTargetDuration * 2 (${minPartDuration}).`
+            });
+            serverControl[phb] = minPartDuration;
+        }
+    };
+    /**
+     * A parser for M3U8 files. The current interpretation of the input is
+     * exposed as a property `manifest` on parser objects. It's just two lines to
+     * create and parse a manifest once you have the contents available as a string:
+     *
+     * ```js
+     * var parser = new m3u8.Parser();
+     * parser.push(xhr.responseText);
+     * ```
+     *
+     * New input can later be applied to update the manifest object by calling
+     * `push` again.
+     *
+     * The parser attempts to create a usable manifest object even if the
+     * underlying input is somewhat nonsensical. It emits `info` and `warning`
+     * events during the parse if it encounters input that seems invalid or
+     * requires some property of the manifest object to be defaulted.
+     *
+     * @class Parser
+     * @extends Stream
+     */
+
+    class Parser extends Stream {
+        constructor() {
+            super();
+            this.lineStream = new LineStream();
+            this.parseStream = new ParseStream();
+            this.lineStream.pipe(this.parseStream);
+            /* eslint-disable consistent-this */
+
+            const self = this;
+            /* eslint-enable consistent-this */
+
+            const uris = [];
+            let currentUri = {}; // if specified, the active EXT-X-MAP definition
+
+            let currentMap; // if specified, the active decryption key
+
+            let key;
+            let hasParts = false;
+            const noop = function () {};
+            const defaultMediaGroups = {
+                'AUDIO': {},
+                'VIDEO': {},
+                'CLOSED-CAPTIONS': {},
+                'SUBTITLES': {}
+            }; // This is the Widevine UUID from DASH IF IOP. The same exact string is
+            // used in MPDs with Widevine encrypted streams.
+
+            const widevineUuid = 'urn:uuid:edef8ba9-79d6-4ace-a3c8-27dcd51d21ed'; // group segments into numbered timelines delineated by discontinuities
+
+            let currentTimeline = 0; // the manifest is empty until the parse stream begins delivering data
+
+            this.manifest = {
+                allowCache: true,
+                discontinuityStarts: [],
+                segments: []
+            }; // keep track of the last seen segment's byte range end, as segments are not required
+            // to provide the offset, in which case it defaults to the next byte after the
+            // previous segment
+
+            let lastByterangeEnd = 0; // keep track of the last seen part's byte range end.
+
+            let lastPartByterangeEnd = 0;
+            this.on('end', () => {
+                // only add preloadSegment if we don't yet have a uri for it.
+                // and we actually have parts/preloadHints
+                if (currentUri.uri || !currentUri.parts && !currentUri.preloadHints) {
+                    return;
+                }
+                if (!currentUri.map && currentMap) {
+                    currentUri.map = currentMap;
+                }
+                if (!currentUri.key && key) {
+                    currentUri.key = key;
+                }
+                if (!currentUri.timeline && typeof currentTimeline === 'number') {
+                    currentUri.timeline = currentTimeline;
+                }
+                this.manifest.preloadSegment = currentUri;
+            }); // update the manifest with the m3u8 entry from the parse stream
+
+            this.parseStream.on('data', function (entry) {
+                let mediaGroup;
+                let rendition;
+                ({
+                    tag() {
+                        // switch based on the tag type
+                        (({
+                            version() {
+                                if (entry.version) {
+                                    this.manifest.version = entry.version;
+                                }
+                            },
+                            'allow-cache'() {
+                                this.manifest.allowCache = entry.allowed;
+                                if (!('allowed' in entry)) {
+                                    this.trigger('info', {
+                                        message: 'defaulting allowCache to YES'
+                                    });
+                                    this.manifest.allowCache = true;
+                                }
+                            },
+                            byterange() {
+                                const byterange = {};
+                                if ('length' in entry) {
+                                    currentUri.byterange = byterange;
+                                    byterange.length = entry.length;
+                                    if (!('offset' in entry)) {
+                                        /*
                      * From the latest spec (as of this writing):
                      * https://tools.ietf.org/html/draft-pantos-http-live-streaming-23#section-4.3.2.2
                      *
@@ -32549,4201 +29369,4139 @@
                      * "If o [offset] is not present, the sub-range begins at the next byte
                      * following the sub-range of the previous media segment."
                      */
-                    entry.offset = lastByterangeEnd;
-                  }
-                }
+                                        entry.offset = lastByterangeEnd;
+                                    }
+                                }
+                                if ('offset' in entry) {
+                                    currentUri.byterange = byterange;
+                                    byterange.offset = entry.offset;
+                                }
+                                lastByterangeEnd = byterange.offset + byterange.length;
+                            },
+                            endlist() {
+                                this.manifest.endList = true;
+                            },
+                            inf() {
+                                if (!('mediaSequence' in this.manifest)) {
+                                    this.manifest.mediaSequence = 0;
+                                    this.trigger('info', {
+                                        message: 'defaulting media sequence to zero'
+                                    });
+                                }
+                                if (!('discontinuitySequence' in this.manifest)) {
+                                    this.manifest.discontinuitySequence = 0;
+                                    this.trigger('info', {
+                                        message: 'defaulting discontinuity sequence to zero'
+                                    });
+                                }
+                                if (entry.duration > 0) {
+                                    currentUri.duration = entry.duration;
+                                }
+                                if (entry.duration === 0) {
+                                    currentUri.duration = 0.01;
+                                    this.trigger('info', {
+                                        message: 'updating zero segment duration to a small value'
+                                    });
+                                }
+                                this.manifest.segments = uris;
+                            },
+                            key() {
+                                if (!entry.attributes) {
+                                    this.trigger('warn', {
+                                        message: 'ignoring key declaration without attribute list'
+                                    });
+                                    return;
+                                } // clear the active encryption key
 
-                if ('offset' in entry) {
-                  currentUri.byterange = byterange;
-                  byterange.offset = entry.offset;
-                }
+                                if (entry.attributes.METHOD === 'NONE') {
+                                    key = null;
+                                    return;
+                                }
+                                if (!entry.attributes.URI) {
+                                    this.trigger('warn', {
+                                        message: 'ignoring key declaration without URI'
+                                    });
+                                    return;
+                                }
+                                if (entry.attributes.KEYFORMAT === 'com.apple.streamingkeydelivery') {
+                                    this.manifest.contentProtection = this.manifest.contentProtection || {}; // TODO: add full support for this.
 
-                lastByterangeEnd = byterange.offset + byterange.length;
-              },
-              endlist: function endlist() {
-                this.manifest.endList = true;
-              },
-              inf: function inf() {
-                if (!('mediaSequence' in this.manifest)) {
-                  this.manifest.mediaSequence = 0;
-                  this.trigger('info', {
-                    message: 'defaulting media sequence to zero'
-                  });
-                }
+                                    this.manifest.contentProtection['com.apple.fps.1_0'] = {
+                                        attributes: entry.attributes
+                                    };
+                                    return;
+                                }
+                                if (entry.attributes.KEYFORMAT === 'com.microsoft.playready') {
+                                    this.manifest.contentProtection = this.manifest.contentProtection || {}; // TODO: add full support for this.
 
-                if (!('discontinuitySequence' in this.manifest)) {
-                  this.manifest.discontinuitySequence = 0;
-                  this.trigger('info', {
-                    message: 'defaulting discontinuity sequence to zero'
-                  });
-                }
+                                    this.manifest.contentProtection['com.microsoft.playready'] = {
+                                        uri: entry.attributes.URI
+                                    };
+                                    return;
+                                } // check if the content is encrypted for Widevine
+                                // Widevine/HLS spec: https://storage.googleapis.com/wvdocs/Widevine_DRM_HLS.pdf
 
-                if (entry.duration > 0) {
-                  currentUri.duration = entry.duration;
-                }
+                                if (entry.attributes.KEYFORMAT === widevineUuid) {
+                                    const VALID_METHODS = ['SAMPLE-AES', 'SAMPLE-AES-CTR', 'SAMPLE-AES-CENC'];
+                                    if (VALID_METHODS.indexOf(entry.attributes.METHOD) === -1) {
+                                        this.trigger('warn', {
+                                            message: 'invalid key method provided for Widevine'
+                                        });
+                                        return;
+                                    }
+                                    if (entry.attributes.METHOD === 'SAMPLE-AES-CENC') {
+                                        this.trigger('warn', {
+                                            message: 'SAMPLE-AES-CENC is deprecated, please use SAMPLE-AES-CTR instead'
+                                        });
+                                    }
+                                    if (entry.attributes.URI.substring(0, 23) !== 'data:text/plain;base64,') {
+                                        this.trigger('warn', {
+                                            message: 'invalid key URI provided for Widevine'
+                                        });
+                                        return;
+                                    }
+                                    if (!(entry.attributes.KEYID && entry.attributes.KEYID.substring(0, 2) === '0x')) {
+                                        this.trigger('warn', {
+                                            message: 'invalid key ID provided for Widevine'
+                                        });
+                                        return;
+                                    } // if Widevine key attributes are valid, store them as `contentProtection`
+                                    // on the manifest to emulate Widevine tag structure in a DASH mpd
 
-                if (entry.duration === 0) {
-                  currentUri.duration = 0.01;
-                  this.trigger('info', {
-                    message: 'updating zero segment duration to a small value'
-                  });
-                }
+                                    this.manifest.contentProtection = this.manifest.contentProtection || {};
+                                    this.manifest.contentProtection['com.widevine.alpha'] = {
+                                        attributes: {
+                                            schemeIdUri: entry.attributes.KEYFORMAT,
+                                            // remove '0x' from the key id string
+                                            keyId: entry.attributes.KEYID.substring(2)
+                                        },
+                                        // decode the base64-encoded PSSH box
+                                        pssh: decodeB64ToUint8Array$1(entry.attributes.URI.split(',')[1])
+                                    };
+                                    return;
+                                }
+                                if (!entry.attributes.METHOD) {
+                                    this.trigger('warn', {
+                                        message: 'defaulting key method to AES-128'
+                                    });
+                                } // setup an encryption key for upcoming segments
 
-                this.manifest.segments = uris;
-              },
-              key: function key() {
-                if (!entry.attributes) {
-                  this.trigger('warn', {
-                    message: 'ignoring key declaration without attribute list'
-                  });
-                  return;
-                } // clear the active encryption key
+                                key = {
+                                    method: entry.attributes.METHOD || 'AES-128',
+                                    uri: entry.attributes.URI
+                                };
+                                if (typeof entry.attributes.IV !== 'undefined') {
+                                    key.iv = entry.attributes.IV;
+                                }
+                            },
+                            'media-sequence'() {
+                                if (!isFinite(entry.number)) {
+                                    this.trigger('warn', {
+                                        message: 'ignoring invalid media sequence: ' + entry.number
+                                    });
+                                    return;
+                                }
+                                this.manifest.mediaSequence = entry.number;
+                            },
+                            'discontinuity-sequence'() {
+                                if (!isFinite(entry.number)) {
+                                    this.trigger('warn', {
+                                        message: 'ignoring invalid discontinuity sequence: ' + entry.number
+                                    });
+                                    return;
+                                }
+                                this.manifest.discontinuitySequence = entry.number;
+                                currentTimeline = entry.number;
+                            },
+                            'playlist-type'() {
+                                if (!/VOD|EVENT/.test(entry.playlistType)) {
+                                    this.trigger('warn', {
+                                        message: 'ignoring unknown playlist type: ' + entry.playlist
+                                    });
+                                    return;
+                                }
+                                this.manifest.playlistType = entry.playlistType;
+                            },
+                            map() {
+                                currentMap = {};
+                                if (entry.uri) {
+                                    currentMap.uri = entry.uri;
+                                }
+                                if (entry.byterange) {
+                                    currentMap.byterange = entry.byterange;
+                                }
+                                if (key) {
+                                    currentMap.key = key;
+                                }
+                            },
+                            'stream-inf'() {
+                                this.manifest.playlists = uris;
+                                this.manifest.mediaGroups = this.manifest.mediaGroups || defaultMediaGroups;
+                                if (!entry.attributes) {
+                                    this.trigger('warn', {
+                                        message: 'ignoring empty stream-inf attributes'
+                                    });
+                                    return;
+                                }
+                                if (!currentUri.attributes) {
+                                    currentUri.attributes = {};
+                                }
+                                _extends$1(currentUri.attributes, entry.attributes);
+                            },
+                            media() {
+                                this.manifest.mediaGroups = this.manifest.mediaGroups || defaultMediaGroups;
+                                if (!(entry.attributes && entry.attributes.TYPE && entry.attributes['GROUP-ID'] && entry.attributes.NAME)) {
+                                    this.trigger('warn', {
+                                        message: 'ignoring incomplete or missing media group'
+                                    });
+                                    return;
+                                } // find the media group, creating defaults as necessary
 
+                                const mediaGroupType = this.manifest.mediaGroups[entry.attributes.TYPE];
+                                mediaGroupType[entry.attributes['GROUP-ID']] = mediaGroupType[entry.attributes['GROUP-ID']] || {};
+                                mediaGroup = mediaGroupType[entry.attributes['GROUP-ID']]; // collect the rendition metadata
 
-                if (entry.attributes.METHOD === 'NONE') {
-                  _key = null;
-                  return;
-                }
+                                rendition = {
+                                    default: /yes/i.test(entry.attributes.DEFAULT)
+                                };
+                                if (rendition.default) {
+                                    rendition.autoselect = true;
+                                } else {
+                                    rendition.autoselect = /yes/i.test(entry.attributes.AUTOSELECT);
+                                }
+                                if (entry.attributes.LANGUAGE) {
+                                    rendition.language = entry.attributes.LANGUAGE;
+                                }
+                                if (entry.attributes.URI) {
+                                    rendition.uri = entry.attributes.URI;
+                                }
+                                if (entry.attributes['INSTREAM-ID']) {
+                                    rendition.instreamId = entry.attributes['INSTREAM-ID'];
+                                }
+                                if (entry.attributes.CHARACTERISTICS) {
+                                    rendition.characteristics = entry.attributes.CHARACTERISTICS;
+                                }
+                                if (entry.attributes.FORCED) {
+                                    rendition.forced = /yes/i.test(entry.attributes.FORCED);
+                                } // insert the new rendition
 
-                if (!entry.attributes.URI) {
-                  this.trigger('warn', {
-                    message: 'ignoring key declaration without URI'
-                  });
-                  return;
-                }
+                                mediaGroup[entry.attributes.NAME] = rendition;
+                            },
+                            discontinuity() {
+                                currentTimeline += 1;
+                                currentUri.discontinuity = true;
+                                this.manifest.discontinuityStarts.push(uris.length);
+                            },
+                            'program-date-time'() {
+                                if (typeof this.manifest.dateTimeString === 'undefined') {
+                                    // PROGRAM-DATE-TIME is a media-segment tag, but for backwards
+                                    // compatibility, we add the first occurence of the PROGRAM-DATE-TIME tag
+                                    // to the manifest object
+                                    // TODO: Consider removing this in future major version
+                                    this.manifest.dateTimeString = entry.dateTimeString;
+                                    this.manifest.dateTimeObject = entry.dateTimeObject;
+                                }
+                                currentUri.dateTimeString = entry.dateTimeString;
+                                currentUri.dateTimeObject = entry.dateTimeObject;
+                            },
+                            targetduration() {
+                                if (!isFinite(entry.duration) || entry.duration < 0) {
+                                    this.trigger('warn', {
+                                        message: 'ignoring invalid target duration: ' + entry.duration
+                                    });
+                                    return;
+                                }
+                                this.manifest.targetDuration = entry.duration;
+                                setHoldBack.call(this, this.manifest);
+                            },
+                            start() {
+                                if (!entry.attributes || isNaN(entry.attributes['TIME-OFFSET'])) {
+                                    this.trigger('warn', {
+                                        message: 'ignoring start declaration without appropriate attribute list'
+                                    });
+                                    return;
+                                }
+                                this.manifest.start = {
+                                    timeOffset: entry.attributes['TIME-OFFSET'],
+                                    precise: entry.attributes.PRECISE
+                                };
+                            },
+                            'cue-out'() {
+                                currentUri.cueOut = entry.data;
+                            },
+                            'cue-out-cont'() {
+                                currentUri.cueOutCont = entry.data;
+                            },
+                            'cue-in'() {
+                                currentUri.cueIn = entry.data;
+                            },
+                            'skip'() {
+                                this.manifest.skip = camelCaseKeys(entry.attributes);
+                                this.warnOnMissingAttributes_('#EXT-X-SKIP', entry.attributes, ['SKIPPED-SEGMENTS']);
+                            },
+                            'part'() {
+                                hasParts = true; // parts are always specifed before a segment
 
-                if (entry.attributes.KEYFORMAT === 'com.apple.streamingkeydelivery') {
-                  this.manifest.contentProtection = this.manifest.contentProtection || {}; // TODO: add full support for this.
+                                const segmentIndex = this.manifest.segments.length;
+                                const part = camelCaseKeys(entry.attributes);
+                                currentUri.parts = currentUri.parts || [];
+                                currentUri.parts.push(part);
+                                if (part.byterange) {
+                                    if (!part.byterange.hasOwnProperty('offset')) {
+                                        part.byterange.offset = lastPartByterangeEnd;
+                                    }
+                                    lastPartByterangeEnd = part.byterange.offset + part.byterange.length;
+                                }
+                                const partIndex = currentUri.parts.length - 1;
+                                this.warnOnMissingAttributes_(`#EXT-X-PART #${partIndex} for segment #${segmentIndex}`, entry.attributes, ['URI', 'DURATION']);
+                                if (this.manifest.renditionReports) {
+                                    this.manifest.renditionReports.forEach((r, i) => {
+                                        if (!r.hasOwnProperty('lastPart')) {
+                                            this.trigger('warn', {
+                                                message: `#EXT-X-RENDITION-REPORT #${i} lacks required attribute(s): LAST-PART`
+                                            });
+                                        }
+                                    });
+                                }
+                            },
+                            'server-control'() {
+                                const attrs = this.manifest.serverControl = camelCaseKeys(entry.attributes);
+                                if (!attrs.hasOwnProperty('canBlockReload')) {
+                                    attrs.canBlockReload = false;
+                                    this.trigger('info', {
+                                        message: '#EXT-X-SERVER-CONTROL defaulting CAN-BLOCK-RELOAD to false'
+                                    });
+                                }
+                                setHoldBack.call(this, this.manifest);
+                                if (attrs.canSkipDateranges && !attrs.hasOwnProperty('canSkipUntil')) {
+                                    this.trigger('warn', {
+                                        message: '#EXT-X-SERVER-CONTROL lacks required attribute CAN-SKIP-UNTIL which is required when CAN-SKIP-DATERANGES is set'
+                                    });
+                                }
+                            },
+                            'preload-hint'() {
+                                // parts are always specifed before a segment
+                                const segmentIndex = this.manifest.segments.length;
+                                const hint = camelCaseKeys(entry.attributes);
+                                const isPart = hint.type && hint.type === 'PART';
+                                currentUri.preloadHints = currentUri.preloadHints || [];
+                                currentUri.preloadHints.push(hint);
+                                if (hint.byterange) {
+                                    if (!hint.byterange.hasOwnProperty('offset')) {
+                                        // use last part byterange end or zero if not a part.
+                                        hint.byterange.offset = isPart ? lastPartByterangeEnd : 0;
+                                        if (isPart) {
+                                            lastPartByterangeEnd = hint.byterange.offset + hint.byterange.length;
+                                        }
+                                    }
+                                }
+                                const index = currentUri.preloadHints.length - 1;
+                                this.warnOnMissingAttributes_(`#EXT-X-PRELOAD-HINT #${index} for segment #${segmentIndex}`, entry.attributes, ['TYPE', 'URI']);
+                                if (!hint.type) {
+                                    return;
+                                } // search through all preload hints except for the current one for
+                                // a duplicate type.
 
-                  this.manifest.contentProtection['com.apple.fps.1_0'] = {
-                    attributes: entry.attributes
-                  };
-                  return;
-                }
-
-                if (entry.attributes.KEYFORMAT === 'com.microsoft.playready') {
-                  this.manifest.contentProtection = this.manifest.contentProtection || {}; // TODO: add full support for this.
-
-                  this.manifest.contentProtection['com.microsoft.playready'] = {
-                    uri: entry.attributes.URI
-                  };
-                  return;
-                } // check if the content is encrypted for Widevine
-                // Widevine/HLS spec: https://storage.googleapis.com/wvdocs/Widevine_DRM_HLS.pdf
-
-
-                if (entry.attributes.KEYFORMAT === widevineUuid) {
-                  var VALID_METHODS = ['SAMPLE-AES', 'SAMPLE-AES-CTR', 'SAMPLE-AES-CENC'];
-
-                  if (VALID_METHODS.indexOf(entry.attributes.METHOD) === -1) {
-                    this.trigger('warn', {
-                      message: 'invalid key method provided for Widevine'
-                    });
-                    return;
-                  }
-
-                  if (entry.attributes.METHOD === 'SAMPLE-AES-CENC') {
-                    this.trigger('warn', {
-                      message: 'SAMPLE-AES-CENC is deprecated, please use SAMPLE-AES-CTR instead'
-                    });
-                  }
-
-                  if (entry.attributes.URI.substring(0, 23) !== 'data:text/plain;base64,') {
-                    this.trigger('warn', {
-                      message: 'invalid key URI provided for Widevine'
-                    });
-                    return;
-                  }
-
-                  if (!(entry.attributes.KEYID && entry.attributes.KEYID.substring(0, 2) === '0x')) {
-                    this.trigger('warn', {
-                      message: 'invalid key ID provided for Widevine'
-                    });
-                    return;
-                  } // if Widevine key attributes are valid, store them as `contentProtection`
-                  // on the manifest to emulate Widevine tag structure in a DASH mpd
-
-
-                  this.manifest.contentProtection = this.manifest.contentProtection || {};
-                  this.manifest.contentProtection['com.widevine.alpha'] = {
-                    attributes: {
-                      schemeIdUri: entry.attributes.KEYFORMAT,
-                      // remove '0x' from the key id string
-                      keyId: entry.attributes.KEYID.substring(2)
+                                for (let i = 0; i < currentUri.preloadHints.length - 1; i++) {
+                                    const otherHint = currentUri.preloadHints[i];
+                                    if (!otherHint.type) {
+                                        continue;
+                                    }
+                                    if (otherHint.type === hint.type) {
+                                        this.trigger('warn', {
+                                            message: `#EXT-X-PRELOAD-HINT #${index} for segment #${segmentIndex} has the same TYPE ${hint.type} as preload hint #${i}`
+                                        });
+                                    }
+                                }
+                            },
+                            'rendition-report'() {
+                                const report = camelCaseKeys(entry.attributes);
+                                this.manifest.renditionReports = this.manifest.renditionReports || [];
+                                this.manifest.renditionReports.push(report);
+                                const index = this.manifest.renditionReports.length - 1;
+                                const required = ['LAST-MSN', 'URI'];
+                                if (hasParts) {
+                                    required.push('LAST-PART');
+                                }
+                                this.warnOnMissingAttributes_(`#EXT-X-RENDITION-REPORT #${index}`, entry.attributes, required);
+                            },
+                            'part-inf'() {
+                                this.manifest.partInf = camelCaseKeys(entry.attributes);
+                                this.warnOnMissingAttributes_('#EXT-X-PART-INF', entry.attributes, ['PART-TARGET']);
+                                if (this.manifest.partInf.partTarget) {
+                                    this.manifest.partTargetDuration = this.manifest.partInf.partTarget;
+                                }
+                                setHoldBack.call(this, this.manifest);
+                            }
+                        })[entry.tagType] || noop).call(self);
                     },
-                    // decode the base64-encoded PSSH box
-                    pssh: decodeB64ToUint8Array$1(entry.attributes.URI.split(',')[1])
-                  };
-                  return;
-                }
+                    uri() {
+                        currentUri.uri = entry.uri;
+                        uris.push(currentUri); // if no explicit duration was declared, use the target duration
 
-                if (!entry.attributes.METHOD) {
-                  this.trigger('warn', {
-                    message: 'defaulting key method to AES-128'
-                  });
-                } // setup an encryption key for upcoming segments
+                        if (this.manifest.targetDuration && !('duration' in currentUri)) {
+                            this.trigger('warn', {
+                                message: 'defaulting segment duration to the target duration'
+                            });
+                            currentUri.duration = this.manifest.targetDuration;
+                        } // annotate with encryption information, if necessary
 
+                        if (key) {
+                            currentUri.key = key;
+                        }
+                        currentUri.timeline = currentTimeline; // annotate with initialization segment information, if necessary
 
-                _key = {
-                  method: entry.attributes.METHOD || 'AES-128',
-                  uri: entry.attributes.URI
-                };
+                        if (currentMap) {
+                            currentUri.map = currentMap;
+                        } // reset the last byterange end as it needs to be 0 between parts
 
-                if (typeof entry.attributes.IV !== 'undefined') {
-                  _key.iv = entry.attributes.IV;
-                }
-              },
-              'media-sequence': function mediaSequence() {
-                if (!isFinite(entry.number)) {
-                  this.trigger('warn', {
-                    message: 'ignoring invalid media sequence: ' + entry.number
-                  });
-                  return;
-                }
+                        lastPartByterangeEnd = 0; // prepare for the next URI
 
-                this.manifest.mediaSequence = entry.number;
-              },
-              'discontinuity-sequence': function discontinuitySequence() {
-                if (!isFinite(entry.number)) {
-                  this.trigger('warn', {
-                    message: 'ignoring invalid discontinuity sequence: ' + entry.number
-                  });
-                  return;
-                }
-
-                this.manifest.discontinuitySequence = entry.number;
-                currentTimeline = entry.number;
-              },
-              'playlist-type': function playlistType() {
-                if (!/VOD|EVENT/.test(entry.playlistType)) {
-                  this.trigger('warn', {
-                    message: 'ignoring unknown playlist type: ' + entry.playlist
-                  });
-                  return;
-                }
-
-                this.manifest.playlistType = entry.playlistType;
-              },
-              map: function map() {
-                currentMap = {};
-
-                if (entry.uri) {
-                  currentMap.uri = entry.uri;
-                }
-
-                if (entry.byterange) {
-                  currentMap.byterange = entry.byterange;
-                }
-
-                if (_key) {
-                  currentMap.key = _key;
-                }
-              },
-              'stream-inf': function streamInf() {
-                this.manifest.playlists = uris;
-                this.manifest.mediaGroups = this.manifest.mediaGroups || defaultMediaGroups;
-
-                if (!entry.attributes) {
-                  this.trigger('warn', {
-                    message: 'ignoring empty stream-inf attributes'
-                  });
-                  return;
-                }
-
-                if (!currentUri.attributes) {
-                  currentUri.attributes = {};
-                }
-
-                _extends_1(currentUri.attributes, entry.attributes);
-              },
-              media: function media() {
-                this.manifest.mediaGroups = this.manifest.mediaGroups || defaultMediaGroups;
-
-                if (!(entry.attributes && entry.attributes.TYPE && entry.attributes['GROUP-ID'] && entry.attributes.NAME)) {
-                  this.trigger('warn', {
-                    message: 'ignoring incomplete or missing media group'
-                  });
-                  return;
-                } // find the media group, creating defaults as necessary
-
-
-                var mediaGroupType = this.manifest.mediaGroups[entry.attributes.TYPE];
-                mediaGroupType[entry.attributes['GROUP-ID']] = mediaGroupType[entry.attributes['GROUP-ID']] || {};
-                mediaGroup = mediaGroupType[entry.attributes['GROUP-ID']]; // collect the rendition metadata
-
-                rendition = {
-                  "default": /yes/i.test(entry.attributes.DEFAULT)
-                };
-
-                if (rendition["default"]) {
-                  rendition.autoselect = true;
-                } else {
-                  rendition.autoselect = /yes/i.test(entry.attributes.AUTOSELECT);
-                }
-
-                if (entry.attributes.LANGUAGE) {
-                  rendition.language = entry.attributes.LANGUAGE;
-                }
-
-                if (entry.attributes.URI) {
-                  rendition.uri = entry.attributes.URI;
-                }
-
-                if (entry.attributes['INSTREAM-ID']) {
-                  rendition.instreamId = entry.attributes['INSTREAM-ID'];
-                }
-
-                if (entry.attributes.CHARACTERISTICS) {
-                  rendition.characteristics = entry.attributes.CHARACTERISTICS;
-                }
-
-                if (entry.attributes.FORCED) {
-                  rendition.forced = /yes/i.test(entry.attributes.FORCED);
-                } // insert the new rendition
-
-
-                mediaGroup[entry.attributes.NAME] = rendition;
-              },
-              discontinuity: function discontinuity() {
-                currentTimeline += 1;
-                currentUri.discontinuity = true;
-                this.manifest.discontinuityStarts.push(uris.length);
-              },
-              'program-date-time': function programDateTime() {
-                if (typeof this.manifest.dateTimeString === 'undefined') {
-                  // PROGRAM-DATE-TIME is a media-segment tag, but for backwards
-                  // compatibility, we add the first occurence of the PROGRAM-DATE-TIME tag
-                  // to the manifest object
-                  // TODO: Consider removing this in future major version
-                  this.manifest.dateTimeString = entry.dateTimeString;
-                  this.manifest.dateTimeObject = entry.dateTimeObject;
-                }
-
-                currentUri.dateTimeString = entry.dateTimeString;
-                currentUri.dateTimeObject = entry.dateTimeObject;
-              },
-              targetduration: function targetduration() {
-                if (!isFinite(entry.duration) || entry.duration < 0) {
-                  this.trigger('warn', {
-                    message: 'ignoring invalid target duration: ' + entry.duration
-                  });
-                  return;
-                }
-
-                this.manifest.targetDuration = entry.duration;
-                setHoldBack.call(this, this.manifest);
-              },
-              start: function start() {
-                if (!entry.attributes || isNaN(entry.attributes['TIME-OFFSET'])) {
-                  this.trigger('warn', {
-                    message: 'ignoring start declaration without appropriate attribute list'
-                  });
-                  return;
-                }
-
-                this.manifest.start = {
-                  timeOffset: entry.attributes['TIME-OFFSET'],
-                  precise: entry.attributes.PRECISE
-                };
-              },
-              'cue-out': function cueOut() {
-                currentUri.cueOut = entry.data;
-              },
-              'cue-out-cont': function cueOutCont() {
-                currentUri.cueOutCont = entry.data;
-              },
-              'cue-in': function cueIn() {
-                currentUri.cueIn = entry.data;
-              },
-              'skip': function skip() {
-                this.manifest.skip = camelCaseKeys(entry.attributes);
-                this.warnOnMissingAttributes_('#EXT-X-SKIP', entry.attributes, ['SKIPPED-SEGMENTS']);
-              },
-              'part': function part() {
-                var _this2 = this;
-
-                hasParts = true; // parts are always specifed before a segment
-
-                var segmentIndex = this.manifest.segments.length;
-                var part = camelCaseKeys(entry.attributes);
-                currentUri.parts = currentUri.parts || [];
-                currentUri.parts.push(part);
-
-                if (part.byterange) {
-                  if (!part.byterange.hasOwnProperty('offset')) {
-                    part.byterange.offset = lastPartByterangeEnd;
-                  }
-
-                  lastPartByterangeEnd = part.byterange.offset + part.byterange.length;
-                }
-
-                var partIndex = currentUri.parts.length - 1;
-                this.warnOnMissingAttributes_("#EXT-X-PART #" + partIndex + " for segment #" + segmentIndex, entry.attributes, ['URI', 'DURATION']);
-
-                if (this.manifest.renditionReports) {
-                  this.manifest.renditionReports.forEach(function (r, i) {
-                    if (!r.hasOwnProperty('lastPart')) {
-                      _this2.trigger('warn', {
-                        message: "#EXT-X-RENDITION-REPORT #" + i + " lacks required attribute(s): LAST-PART"
-                      });
+                        currentUri = {};
+                    },
+                    comment() {// comments are not important for playback
+                    },
+                    custom() {
+                        // if this is segment-level data attach the output to the segment
+                        if (entry.segment) {
+                            currentUri.custom = currentUri.custom || {};
+                            currentUri.custom[entry.customType] = entry.data; // if this is manifest-level data attach to the top level manifest object
+                        } else {
+                            this.manifest.custom = this.manifest.custom || {};
+                            this.manifest.custom[entry.customType] = entry.data;
+                        }
                     }
-                  });
-                }
-              },
-              'server-control': function serverControl() {
-                var attrs = this.manifest.serverControl = camelCaseKeys(entry.attributes);
-
-                if (!attrs.hasOwnProperty('canBlockReload')) {
-                  attrs.canBlockReload = false;
-                  this.trigger('info', {
-                    message: '#EXT-X-SERVER-CONTROL defaulting CAN-BLOCK-RELOAD to false'
-                  });
-                }
-
-                setHoldBack.call(this, this.manifest);
-
-                if (attrs.canSkipDateranges && !attrs.hasOwnProperty('canSkipUntil')) {
-                  this.trigger('warn', {
-                    message: '#EXT-X-SERVER-CONTROL lacks required attribute CAN-SKIP-UNTIL which is required when CAN-SKIP-DATERANGES is set'
-                  });
-                }
-              },
-              'preload-hint': function preloadHint() {
-                // parts are always specifed before a segment
-                var segmentIndex = this.manifest.segments.length;
-                var hint = camelCaseKeys(entry.attributes);
-                var isPart = hint.type && hint.type === 'PART';
-                currentUri.preloadHints = currentUri.preloadHints || [];
-                currentUri.preloadHints.push(hint);
-
-                if (hint.byterange) {
-                  if (!hint.byterange.hasOwnProperty('offset')) {
-                    // use last part byterange end or zero if not a part.
-                    hint.byterange.offset = isPart ? lastPartByterangeEnd : 0;
-
-                    if (isPart) {
-                      lastPartByterangeEnd = hint.byterange.offset + hint.byterange.length;
-                    }
-                  }
-                }
-
-                var index = currentUri.preloadHints.length - 1;
-                this.warnOnMissingAttributes_("#EXT-X-PRELOAD-HINT #" + index + " for segment #" + segmentIndex, entry.attributes, ['TYPE', 'URI']);
-
-                if (!hint.type) {
-                  return;
-                } // search through all preload hints except for the current one for
-                // a duplicate type.
-
-
-                for (var i = 0; i < currentUri.preloadHints.length - 1; i++) {
-                  var otherHint = currentUri.preloadHints[i];
-
-                  if (!otherHint.type) {
-                    continue;
-                  }
-
-                  if (otherHint.type === hint.type) {
-                    this.trigger('warn', {
-                      message: "#EXT-X-PRELOAD-HINT #" + index + " for segment #" + segmentIndex + " has the same TYPE " + hint.type + " as preload hint #" + i
-                    });
-                  }
-                }
-              },
-              'rendition-report': function renditionReport() {
-                var report = camelCaseKeys(entry.attributes);
-                this.manifest.renditionReports = this.manifest.renditionReports || [];
-                this.manifest.renditionReports.push(report);
-                var index = this.manifest.renditionReports.length - 1;
-                var required = ['LAST-MSN', 'URI'];
-
-                if (hasParts) {
-                  required.push('LAST-PART');
-                }
-
-                this.warnOnMissingAttributes_("#EXT-X-RENDITION-REPORT #" + index, entry.attributes, required);
-              },
-              'part-inf': function partInf() {
-                this.manifest.partInf = camelCaseKeys(entry.attributes);
-                this.warnOnMissingAttributes_('#EXT-X-PART-INF', entry.attributes, ['PART-TARGET']);
-
-                if (this.manifest.partInf.partTarget) {
-                  this.manifest.partTargetDuration = this.manifest.partInf.partTarget;
-                }
-
-                setHoldBack.call(this, this.manifest);
-              }
-            })[entry.tagType] || noop).call(self);
-          },
-          uri: function uri() {
-            currentUri.uri = entry.uri;
-            uris.push(currentUri); // if no explicit duration was declared, use the target duration
-
-            if (this.manifest.targetDuration && !('duration' in currentUri)) {
-              this.trigger('warn', {
-                message: 'defaulting segment duration to the target duration'
-              });
-              currentUri.duration = this.manifest.targetDuration;
-            } // annotate with encryption information, if necessary
-
-
-            if (_key) {
-              currentUri.key = _key;
-            }
-
-            currentUri.timeline = currentTimeline; // annotate with initialization segment information, if necessary
-
-            if (currentMap) {
-              currentUri.map = currentMap;
-            } // reset the last byterange end as it needs to be 0 between parts
-
-
-            lastPartByterangeEnd = 0; // prepare for the next URI
-
-            currentUri = {};
-          },
-          comment: function comment() {// comments are not important for playback
-          },
-          custom: function custom() {
-            // if this is segment-level data attach the output to the segment
-            if (entry.segment) {
-              currentUri.custom = currentUri.custom || {};
-              currentUri.custom[entry.customType] = entry.data; // if this is manifest-level data attach to the top level manifest object
-            } else {
-              this.manifest.custom = this.manifest.custom || {};
-              this.manifest.custom[entry.customType] = entry.data;
-            }
-          }
-        })[entry.type].call(self);
-      });
-
-      return _this;
-    }
-
-    var _proto = Parser.prototype;
-
-    _proto.warnOnMissingAttributes_ = function warnOnMissingAttributes_(identifier, attributes, required) {
-      var missing = [];
-      required.forEach(function (key) {
-        if (!attributes.hasOwnProperty(key)) {
-          missing.push(key);
-        }
-      });
-
-      if (missing.length) {
-        this.trigger('warn', {
-          message: identifier + " lacks required attribute(s): " + missing.join(', ')
-        });
-      }
-    }
-    /**
-     * Parse the input string and update the manifest object.
-     *
-     * @param {string} chunk a potentially incomplete portion of the manifest
-     */
-    ;
-
-    _proto.push = function push(chunk) {
-      this.lineStream.push(chunk);
-    }
-    /**
-     * Flush any remaining input. This can be handy if the last line of an M3U8
-     * manifest did not contain a trailing newline but the file has been
-     * completely received.
-     */
-    ;
-
-    _proto.end = function end() {
-      // flush any buffered input
-      this.lineStream.push('\n');
-      this.trigger('end');
-    }
-    /**
-     * Add an additional parser for non-standard tags
-     *
-     * @param {Object}   options              a map of options for the added parser
-     * @param {RegExp}   options.expression   a regular expression to match the custom header
-     * @param {string}   options.type         the type to register to the output
-     * @param {Function} [options.dataParser] function to parse the line into an object
-     * @param {boolean}  [options.segment]    should tag data be attached to the segment object
-     */
-    ;
-
-    _proto.addParser = function addParser(options) {
-      this.parseStream.addParser(options);
-    }
-    /**
-     * Add a custom header mapper
-     *
-     * @param {Object}   options
-     * @param {RegExp}   options.expression   a regular expression to match the custom header
-     * @param {Function} options.map          function to translate tag into a different tag
-     */
-    ;
-
-    _proto.addTagMapper = function addTagMapper(options) {
-      this.parseStream.addTagMapper(options);
-    };
-
-    return Parser;
-  }(Stream);
-
-  var regexs = {
-    // to determine mime types
-    mp4: /^(av0?1|avc0?[1234]|vp0?9|flac|opus|mp3|mp4a|mp4v|stpp.ttml.im1t)/,
-    webm: /^(vp0?[89]|av0?1|opus|vorbis)/,
-    ogg: /^(vp0?[89]|theora|flac|opus|vorbis)/,
-    // to determine if a codec is audio or video
-    video: /^(av0?1|avc0?[1234]|vp0?[89]|hvc1|hev1|theora|mp4v)/,
-    audio: /^(mp4a|flac|vorbis|opus|ac-[34]|ec-3|alac|mp3|speex|aac)/,
-    text: /^(stpp.ttml.im1t)/,
-    // mux.js support regex
-    muxerVideo: /^(avc0?1)/,
-    muxerAudio: /^(mp4a)/,
-    // match nothing as muxer does not support text right now.
-    // there cannot never be a character before the start of a string
-    // so this matches nothing.
-    muxerText: /a^/
-  };
-  var mediaTypes = ['video', 'audio', 'text'];
-  var upperMediaTypes = ['Video', 'Audio', 'Text'];
-  /**
-   * Replace the old apple-style `avc1.<dd>.<dd>` codec string with the standard
-   * `avc1.<hhhhhh>`
-   *
-   * @param {string} codec
-   *        Codec string to translate
-   * @return {string}
-   *         The translated codec string
-   */
-
-  var translateLegacyCodec = function translateLegacyCodec(codec) {
-    if (!codec) {
-      return codec;
-    }
-
-    return codec.replace(/avc1\.(\d+)\.(\d+)/i, function (orig, profile, avcLevel) {
-      var profileHex = ('00' + Number(profile).toString(16)).slice(-2);
-      var avcLevelHex = ('00' + Number(avcLevel).toString(16)).slice(-2);
-      return 'avc1.' + profileHex + '00' + avcLevelHex;
-    });
-  };
-  /**
-   * @typedef {Object} ParsedCodecInfo
-   * @property {number} codecCount
-   *           Number of codecs parsed
-   * @property {string} [videoCodec]
-   *           Parsed video codec (if found)
-   * @property {string} [videoObjectTypeIndicator]
-   *           Video object type indicator (if found)
-   * @property {string|null} audioProfile
-   *           Audio profile
-   */
-
-  /**
-   * Parses a codec string to retrieve the number of codecs specified, the video codec and
-   * object type indicator, and the audio profile.
-   *
-   * @param {string} [codecString]
-   *        The codec string to parse
-   * @return {ParsedCodecInfo}
-   *         Parsed codec info
-   */
-
-  var parseCodecs = function parseCodecs(codecString) {
-    if (codecString === void 0) {
-      codecString = '';
-    }
-
-    var codecs = codecString.split(',');
-    var result = [];
-    codecs.forEach(function (codec) {
-      codec = codec.trim();
-      var codecType;
-      mediaTypes.forEach(function (name) {
-        var match = regexs[name].exec(codec.toLowerCase());
-
-        if (!match || match.length <= 1) {
-          return;
-        }
-
-        codecType = name; // maintain codec case
-
-        var type = codec.substring(0, match[1].length);
-        var details = codec.replace(type, '');
-        result.push({
-          type: type,
-          details: details,
-          mediaType: name
-        });
-      });
-
-      if (!codecType) {
-        result.push({
-          type: codec,
-          details: '',
-          mediaType: 'unknown'
-        });
-      }
-    });
-    return result;
-  };
-  /**
-   * Returns a ParsedCodecInfo object for the default alternate audio playlist if there is
-   * a default alternate audio playlist for the provided audio group.
-   *
-   * @param {Object} master
-   *        The master playlist
-   * @param {string} audioGroupId
-   *        ID of the audio group for which to find the default codec info
-   * @return {ParsedCodecInfo}
-   *         Parsed codec info
-   */
-
-  var codecsFromDefault = function codecsFromDefault(master, audioGroupId) {
-    if (!master.mediaGroups.AUDIO || !audioGroupId) {
-      return null;
-    }
-
-    var audioGroup = master.mediaGroups.AUDIO[audioGroupId];
-
-    if (!audioGroup) {
-      return null;
-    }
-
-    for (var name in audioGroup) {
-      var audioType = audioGroup[name];
-
-      if (audioType["default"] && audioType.playlists) {
-        // codec should be the same for all playlists within the audio type
-        return parseCodecs(audioType.playlists[0].attributes.CODECS);
-      }
-    }
-
-    return null;
-  };
-  var isAudioCodec = function isAudioCodec(codec) {
-    if (codec === void 0) {
-      codec = '';
-    }
-
-    return regexs.audio.test(codec.trim().toLowerCase());
-  };
-  var isTextCodec = function isTextCodec(codec) {
-    if (codec === void 0) {
-      codec = '';
-    }
-
-    return regexs.text.test(codec.trim().toLowerCase());
-  };
-  var getMimeForCodec = function getMimeForCodec(codecString) {
-    if (!codecString || typeof codecString !== 'string') {
-      return;
-    }
-
-    var codecs = codecString.toLowerCase().split(',').map(function (c) {
-      return translateLegacyCodec(c.trim());
-    }); // default to video type
-
-    var type = 'video'; // only change to audio type if the only codec we have is
-    // audio
-
-    if (codecs.length === 1 && isAudioCodec(codecs[0])) {
-      type = 'audio';
-    } else if (codecs.length === 1 && isTextCodec(codecs[0])) {
-      // text uses application/<container> for now
-      type = 'application';
-    } // default the container to mp4
-
-
-    var container = 'mp4'; // every codec must be able to go into the container
-    // for that container to be the correct one
-
-    if (codecs.every(function (c) {
-      return regexs.mp4.test(c);
-    })) {
-      container = 'mp4';
-    } else if (codecs.every(function (c) {
-      return regexs.webm.test(c);
-    })) {
-      container = 'webm';
-    } else if (codecs.every(function (c) {
-      return regexs.ogg.test(c);
-    })) {
-      container = 'ogg';
-    }
-
-    return type + "/" + container + ";codecs=\"" + codecString + "\"";
-  };
-  var browserSupportsCodec = function browserSupportsCodec(codecString) {
-    if (codecString === void 0) {
-      codecString = '';
-    }
-
-    return window.MediaSource && window.MediaSource.isTypeSupported && window.MediaSource.isTypeSupported(getMimeForCodec(codecString)) || false;
-  };
-  var muxerSupportsCodec = function muxerSupportsCodec(codecString) {
-    if (codecString === void 0) {
-      codecString = '';
-    }
-
-    return codecString.toLowerCase().split(',').every(function (codec) {
-      codec = codec.trim(); // any match is supported.
-
-      for (var i = 0; i < upperMediaTypes.length; i++) {
-        var type = upperMediaTypes[i];
-
-        if (regexs["muxer" + type].test(codec)) {
-          return true;
-        }
-      }
-
-      return false;
-    });
-  };
-  var DEFAULT_AUDIO_CODEC = 'mp4a.40.2';
-  var DEFAULT_VIDEO_CODEC = 'avc1.4d400d';
-
-  var MPEGURL_REGEX = /^(audio|video|application)\/(x-|vnd\.apple\.)?mpegurl/i;
-  var DASH_REGEX = /^application\/dash\+xml/i;
-  /**
-   * Returns a string that describes the type of source based on a video source object's
-   * media type.
-   *
-   * @see {@link https://dev.w3.org/html5/pf-summary/video.html#dom-source-type|Source Type}
-   *
-   * @param {string} type
-   *        Video source object media type
-   * @return {('hls'|'dash'|'vhs-json'|null)}
-   *         VHS source type string
-   */
-
-  var simpleTypeFromSourceType = function simpleTypeFromSourceType(type) {
-    if (MPEGURL_REGEX.test(type)) {
-      return 'hls';
-    }
-
-    if (DASH_REGEX.test(type)) {
-      return 'dash';
-    } // Denotes the special case of a manifest object passed to http-streaming instead of a
-    // source URL.
-    //
-    // See https://en.wikipedia.org/wiki/Media_type for details on specifying media types.
-    //
-    // In this case, vnd stands for vendor, video.js for the organization, VHS for this
-    // project, and the +json suffix identifies the structure of the media type.
-
-
-    if (type === 'application/vnd.videojs.vhs+json') {
-      return 'vhs-json';
-    }
-
-    return null;
-  };
-
-  // const log2 = Math.log2 ? Math.log2 : (x) => (Math.log(x) / Math.log(2));
-  // we used to do this with log2 but BigInt does not support builtin math
-  // Math.ceil(log2(x));
-
-
-  var countBits = function countBits(x) {
-    return x.toString(2).length;
-  }; // count the number of whole bytes it would take to represent a number
-
-  var countBytes = function countBytes(x) {
-    return Math.ceil(countBits(x) / 8);
-  };
-  var isArrayBufferView = function isArrayBufferView(obj) {
-    if (ArrayBuffer.isView === 'function') {
-      return ArrayBuffer.isView(obj);
-    }
-
-    return obj && obj.buffer instanceof ArrayBuffer;
-  };
-  var isTypedArray = function isTypedArray(obj) {
-    return isArrayBufferView(obj);
-  };
-  var toUint8 = function toUint8(bytes) {
-    if (bytes instanceof Uint8Array) {
-      return bytes;
-    }
-
-    if (!Array.isArray(bytes) && !isTypedArray(bytes) && !(bytes instanceof ArrayBuffer)) {
-      // any non-number or NaN leads to empty uint8array
-      // eslint-disable-next-line
-      if (typeof bytes !== 'number' || typeof bytes === 'number' && bytes !== bytes) {
-        bytes = 0;
-      } else {
-        bytes = [bytes];
-      }
-    }
-
-    return new Uint8Array(bytes && bytes.buffer || bytes, bytes && bytes.byteOffset || 0, bytes && bytes.byteLength || 0);
-  };
-  var BigInt = window.BigInt || Number;
-  var BYTE_TABLE = [BigInt('0x1'), BigInt('0x100'), BigInt('0x10000'), BigInt('0x1000000'), BigInt('0x100000000'), BigInt('0x10000000000'), BigInt('0x1000000000000'), BigInt('0x100000000000000'), BigInt('0x10000000000000000')];
-  var bytesToNumber = function bytesToNumber(bytes, _temp) {
-    var _ref = _temp === void 0 ? {} : _temp,
-        _ref$signed = _ref.signed,
-        signed = _ref$signed === void 0 ? false : _ref$signed,
-        _ref$le = _ref.le,
-        le = _ref$le === void 0 ? false : _ref$le;
-
-    bytes = toUint8(bytes);
-    var fn = le ? 'reduce' : 'reduceRight';
-    var obj = bytes[fn] ? bytes[fn] : Array.prototype[fn];
-    var number = obj.call(bytes, function (total, _byte, i) {
-      var exponent = le ? i : Math.abs(i + 1 - bytes.length);
-      return total + BigInt(_byte) * BYTE_TABLE[exponent];
-    }, BigInt(0));
-
-    if (signed) {
-      var max = BYTE_TABLE[bytes.length] / BigInt(2) - BigInt(1);
-      number = BigInt(number);
-
-      if (number > max) {
-        number -= max;
-        number -= max;
-        number -= BigInt(2);
-      }
-    }
-
-    return Number(number);
-  };
-  var numberToBytes = function numberToBytes(number, _temp2) {
-    var _ref2 = _temp2 === void 0 ? {} : _temp2,
-        _ref2$le = _ref2.le,
-        le = _ref2$le === void 0 ? false : _ref2$le; // eslint-disable-next-line
-
-
-    if (typeof number !== 'bigint' && typeof number !== 'number' || typeof number === 'number' && number !== number) {
-      number = 0;
-    }
-
-    number = BigInt(number);
-    var byteCount = countBytes(number);
-    var bytes = new Uint8Array(new ArrayBuffer(byteCount));
-
-    for (var i = 0; i < byteCount; i++) {
-      var byteIndex = le ? i : Math.abs(i + 1 - bytes.length);
-      bytes[byteIndex] = Number(number / BYTE_TABLE[i] & BigInt(0xFF));
-
-      if (number < 0) {
-        bytes[byteIndex] = Math.abs(~bytes[byteIndex]);
-        bytes[byteIndex] -= i === 0 ? 1 : 2;
-      }
-    }
-
-    return bytes;
-  };
-  var stringToBytes = function stringToBytes(string, stringIsBytes) {
-    if (typeof string !== 'string' && string && typeof string.toString === 'function') {
-      string = string.toString();
-    }
-
-    if (typeof string !== 'string') {
-      return new Uint8Array();
-    } // If the string already is bytes, we don't have to do this
-    // otherwise we do this so that we split multi length characters
-    // into individual bytes
-
-
-    if (!stringIsBytes) {
-      string = unescape(encodeURIComponent(string));
-    }
-
-    var view = new Uint8Array(string.length);
-
-    for (var i = 0; i < string.length; i++) {
-      view[i] = string.charCodeAt(i);
-    }
-
-    return view;
-  };
-  var concatTypedArrays = function concatTypedArrays() {
-    for (var _len = arguments.length, buffers = new Array(_len), _key = 0; _key < _len; _key++) {
-      buffers[_key] = arguments[_key];
-    }
-
-    buffers = buffers.filter(function (b) {
-      return b && (b.byteLength || b.length) && typeof b !== 'string';
-    });
-
-    if (buffers.length <= 1) {
-      // for 0 length we will return empty uint8
-      // for 1 length we return the first uint8
-      return toUint8(buffers[0]);
-    }
-
-    var totalLen = buffers.reduce(function (total, buf, i) {
-      return total + (buf.byteLength || buf.length);
-    }, 0);
-    var tempBuffer = new Uint8Array(totalLen);
-    var offset = 0;
-    buffers.forEach(function (buf) {
-      buf = toUint8(buf);
-      tempBuffer.set(buf, offset);
-      offset += buf.byteLength;
-    });
-    return tempBuffer;
-  };
-  /**
-   * Check if the bytes "b" are contained within bytes "a".
-   *
-   * @param {Uint8Array|Array} a
-   *        Bytes to check in
-   *
-   * @param {Uint8Array|Array} b
-   *        Bytes to check for
-   *
-   * @param {Object} options
-   *        options
-   *
-   * @param {Array|Uint8Array} [offset=0]
-   *        offset to use when looking at bytes in a
-   *
-   * @param {Array|Uint8Array} [mask=[]]
-   *        mask to use on bytes before comparison.
-   *
-   * @return {boolean}
-   *         If all bytes in b are inside of a, taking into account
-   *         bit masks.
-   */
-
-  var bytesMatch = function bytesMatch(a, b, _temp3) {
-    var _ref3 = _temp3 === void 0 ? {} : _temp3,
-        _ref3$offset = _ref3.offset,
-        offset = _ref3$offset === void 0 ? 0 : _ref3$offset,
-        _ref3$mask = _ref3.mask,
-        mask = _ref3$mask === void 0 ? [] : _ref3$mask;
-
-    a = toUint8(a);
-    b = toUint8(b); // ie 11 does not support uint8 every
-
-    var fn = b.every ? b.every : Array.prototype.every;
-    return b.length && a.length - offset >= b.length && // ie 11 doesn't support every on uin8
-    fn.call(b, function (bByte, i) {
-      var aByte = mask[i] ? mask[i] & a[offset + i] : a[offset + i];
-      return bByte === aByte;
-    });
-  };
-
-  var DEFAULT_LOCATION = 'http://example.com';
-
-  var resolveUrl$1 = function resolveUrl(baseUrl, relativeUrl) {
-    // return early if we don't need to resolve
-    if (/^[a-z]+:/i.test(relativeUrl)) {
-      return relativeUrl;
-    } // if baseUrl is a data URI, ignore it and resolve everything relative to window.location
-
-
-    if (/^data:/.test(baseUrl)) {
-      baseUrl = window.location && window.location.href || '';
-    } // IE11 supports URL but not the URL constructor
-    // feature detect the behavior we want
-
-
-    var nativeURL = typeof window.URL === 'function';
-    var protocolLess = /^\/\//.test(baseUrl); // remove location if window.location isn't available (i.e. we're in node)
-    // and if baseUrl isn't an absolute url
-
-    var removeLocation = !window.location && !/\/\//i.test(baseUrl); // if the base URL is relative then combine with the current location
-
-    if (nativeURL) {
-      baseUrl = new window.URL(baseUrl, window.location || DEFAULT_LOCATION);
-    } else if (!/\/\//i.test(baseUrl)) {
-      baseUrl = urlToolkit.buildAbsoluteURL(window.location && window.location.href || '', baseUrl);
-    }
-
-    if (nativeURL) {
-      var newUrl = new URL(relativeUrl, baseUrl); // if we're a protocol-less url, remove the protocol
-      // and if we're location-less, remove the location
-      // otherwise, return the url unmodified
-
-      if (removeLocation) {
-        return newUrl.href.slice(DEFAULT_LOCATION.length);
-      } else if (protocolLess) {
-        return newUrl.href.slice(newUrl.protocol.length);
-      }
-
-      return newUrl.href;
-    }
-
-    return urlToolkit.buildAbsoluteURL(baseUrl, relativeUrl);
-  };
-
-  /**
-   * Loops through all supported media groups in master and calls the provided
-   * callback for each group
-   *
-   * @param {Object} master
-   *        The parsed master manifest object
-   * @param {string[]} groups
-   *        The media groups to call the callback for
-   * @param {Function} callback
-   *        Callback to call for each media group
-   */
-  var forEachMediaGroup$1 = function forEachMediaGroup(master, groups, callback) {
-    groups.forEach(function (mediaType) {
-      for (var groupKey in master.mediaGroups[mediaType]) {
-        for (var labelKey in master.mediaGroups[mediaType][groupKey]) {
-          var mediaProperties = master.mediaGroups[mediaType][groupKey][labelKey];
-          callback(mediaProperties, mediaType, groupKey, labelKey);
-        }
-      }
-    });
-  };
-
-  var atob = function atob(s) {
-    return window.atob ? window.atob(s) : Buffer.from(s, 'base64').toString('binary');
-  };
-
-  function decodeB64ToUint8Array(b64Text) {
-    var decodedString = atob(b64Text);
-    var array = new Uint8Array(decodedString.length);
-
-    for (var i = 0; i < decodedString.length; i++) {
-      array[i] = decodedString.charCodeAt(i);
-    }
-
-    return array;
-  }
-
-  /**
-   * "Shallow freezes" an object to render it immutable.
-   * Uses `Object.freeze` if available,
-   * otherwise the immutability is only in the type.
-   *
-   * Is used to create "enum like" objects.
-   *
-   * @template T
-   * @param {T} object the object to freeze
-   * @param {Pick<ObjectConstructor, 'freeze'> = Object} oc `Object` by default,
-   * 				allows to inject custom object constructor for tests
-   * @returns {Readonly<T>}
-   *
-   * @see https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/freeze
-   */
-
-  function freeze(object, oc) {
-    if (oc === undefined) {
-      oc = Object;
-    }
-
-    return oc && typeof oc.freeze === 'function' ? oc.freeze(object) : object;
-  }
-  /**
-   * All mime types that are allowed as input to `DOMParser.parseFromString`
-   *
-   * @see https://developer.mozilla.org/en-US/docs/Web/API/DOMParser/parseFromString#Argument02 MDN
-   * @see https://html.spec.whatwg.org/multipage/dynamic-markup-insertion.html#domparsersupportedtype WHATWG HTML Spec
-   * @see DOMParser.prototype.parseFromString
-   */
-
-
-  var MIME_TYPE = freeze({
-    /**
-     * `text/html`, the only mime type that triggers treating an XML document as HTML.
-     *
-     * @see DOMParser.SupportedType.isHTML
-     * @see https://www.iana.org/assignments/media-types/text/html IANA MimeType registration
-     * @see https://en.wikipedia.org/wiki/HTML Wikipedia
-     * @see https://developer.mozilla.org/en-US/docs/Web/API/DOMParser/parseFromString MDN
-     * @see https://html.spec.whatwg.org/multipage/dynamic-markup-insertion.html#dom-domparser-parsefromstring WHATWG HTML Spec
-     */
-    HTML: 'text/html',
-
-    /**
-     * Helper method to check a mime type if it indicates an HTML document
-     *
-     * @param {string} [value]
-     * @returns {boolean}
-     *
-     * @see https://www.iana.org/assignments/media-types/text/html IANA MimeType registration
-     * @see https://en.wikipedia.org/wiki/HTML Wikipedia
-     * @see https://developer.mozilla.org/en-US/docs/Web/API/DOMParser/parseFromString MDN
-     * @see https://html.spec.whatwg.org/multipage/dynamic-markup-insertion.html#dom-domparser-parsefromstring 	 */
-    isHTML: function isHTML(value) {
-      return value === MIME_TYPE.HTML;
-    },
-
-    /**
-     * `application/xml`, the standard mime type for XML documents.
-     *
-     * @see https://www.iana.org/assignments/media-types/application/xml IANA MimeType registration
-     * @see https://tools.ietf.org/html/rfc7303#section-9.1 RFC 7303
-     * @see https://en.wikipedia.org/wiki/XML_and_MIME Wikipedia
-     */
-    XML_APPLICATION: 'application/xml',
-
-    /**
-     * `text/html`, an alias for `application/xml`.
-     *
-     * @see https://tools.ietf.org/html/rfc7303#section-9.2 RFC 7303
-     * @see https://www.iana.org/assignments/media-types/text/xml IANA MimeType registration
-     * @see https://en.wikipedia.org/wiki/XML_and_MIME Wikipedia
-     */
-    XML_TEXT: 'text/xml',
-
-    /**
-     * `application/xhtml+xml`, indicates an XML document that has the default HTML namespace,
-     * but is parsed as an XML document.
-     *
-     * @see https://www.iana.org/assignments/media-types/application/xhtml+xml IANA MimeType registration
-     * @see https://dom.spec.whatwg.org/#dom-domimplementation-createdocument WHATWG DOM Spec
-     * @see https://en.wikipedia.org/wiki/XHTML Wikipedia
-     */
-    XML_XHTML_APPLICATION: 'application/xhtml+xml',
-
-    /**
-     * `image/svg+xml`,
-     *
-     * @see https://www.iana.org/assignments/media-types/image/svg+xml IANA MimeType registration
-     * @see https://www.w3.org/TR/SVG11/ W3C SVG 1.1
-     * @see https://en.wikipedia.org/wiki/Scalable_Vector_Graphics Wikipedia
-     */
-    XML_SVG_IMAGE: 'image/svg+xml'
-  });
-  /**
-   * Namespaces that are used in this code base.
-   *
-   * @see http://www.w3.org/TR/REC-xml-names
-   */
-
-  var NAMESPACE$3 = freeze({
-    /**
-     * The XHTML namespace.
-     *
-     * @see http://www.w3.org/1999/xhtml
-     */
-    HTML: 'http://www.w3.org/1999/xhtml',
-
-    /**
-     * Checks if `uri` equals `NAMESPACE.HTML`.
-     *
-     * @param {string} [uri]
-     *
-     * @see NAMESPACE.HTML
-     */
-    isHTML: function isHTML(uri) {
-      return uri === NAMESPACE$3.HTML;
-    },
-
-    /**
-     * The SVG namespace.
-     *
-     * @see http://www.w3.org/2000/svg
-     */
-    SVG: 'http://www.w3.org/2000/svg',
-
-    /**
-     * The `xml:` namespace.
-     *
-     * @see http://www.w3.org/XML/1998/namespace
-     */
-    XML: 'http://www.w3.org/XML/1998/namespace',
-
-    /**
-     * The `xmlns:` namespace
-     *
-     * @see https://www.w3.org/2000/xmlns/
-     */
-    XMLNS: 'http://www.w3.org/2000/xmlns/'
-  });
-  var freeze_1 = freeze;
-  var MIME_TYPE_1 = MIME_TYPE;
-  var NAMESPACE_1 = NAMESPACE$3;
-  var conventions = {
-    freeze: freeze_1,
-    MIME_TYPE: MIME_TYPE_1,
-    NAMESPACE: NAMESPACE_1
-  };
-
-  var NAMESPACE$2 = conventions.NAMESPACE;
-  /**
-   * A prerequisite for `[].filter`, to drop elements that are empty
-   * @param {string} input
-   * @returns {boolean}
-   */
-
-  function notEmptyString(input) {
-    return input !== '';
-  }
-  /**
-   * @see https://infra.spec.whatwg.org/#split-on-ascii-whitespace
-   * @see https://infra.spec.whatwg.org/#ascii-whitespace
-   *
-   * @param {string} input
-   * @returns {string[]} (can be empty)
-   */
-
-
-  function splitOnASCIIWhitespace(input) {
-    // U+0009 TAB, U+000A LF, U+000C FF, U+000D CR, U+0020 SPACE
-    return input ? input.split(/[\t\n\f\r ]+/).filter(notEmptyString) : [];
-  }
-  /**
-   * Adds element as a key to current if it is not already present.
-   *
-   * @param {Record<string, boolean | undefined>} current
-   * @param {string} element
-   * @returns {Record<string, boolean | undefined>}
-   */
-
-
-  function orderedSetReducer(current, element) {
-    if (!current.hasOwnProperty(element)) {
-      current[element] = true;
-    }
-
-    return current;
-  }
-  /**
-   * @see https://infra.spec.whatwg.org/#ordered-set
-   * @param {string} input
-   * @returns {string[]}
-   */
-
-
-  function toOrderedSet(input) {
-    if (!input) return [];
-    var list = splitOnASCIIWhitespace(input);
-    return Object.keys(list.reduce(orderedSetReducer, {}));
-  }
-  /**
-   * Uses `list.indexOf` to implement something like `Array.prototype.includes`,
-   * which we can not rely on being available.
-   *
-   * @param {any[]} list
-   * @returns {function(any): boolean}
-   */
-
-
-  function arrayIncludes(list) {
-    return function (element) {
-      return list && list.indexOf(element) !== -1;
-    };
-  }
-
-  function copy(src, dest) {
-    for (var p in src) {
-      dest[p] = src[p];
-    }
-  }
-  /**
-  ^\w+\.prototype\.([_\w]+)\s*=\s*((?:.*\{\s*?[\r\n][\s\S]*?^})|\S.*?(?=[;\r\n]));?
-  ^\w+\.prototype\.([_\w]+)\s*=\s*(\S.*?(?=[;\r\n]));?
-   */
-
-
-  function _extends(Class, Super) {
-    var pt = Class.prototype;
-
-    if (!(pt instanceof Super)) {
-      var t = function t() {};
-      t.prototype = Super.prototype;
-      t = new t();
-      copy(pt, t);
-      Class.prototype = pt = t;
-    }
-
-    if (pt.constructor != Class) {
-      if (typeof Class != 'function') {
-        console.error("unknown Class:" + Class);
-      }
-
-      pt.constructor = Class;
-    }
-  } // Node Types
-
-
-  var NodeType = {};
-  var ELEMENT_NODE = NodeType.ELEMENT_NODE = 1;
-  var ATTRIBUTE_NODE = NodeType.ATTRIBUTE_NODE = 2;
-  var TEXT_NODE = NodeType.TEXT_NODE = 3;
-  var CDATA_SECTION_NODE = NodeType.CDATA_SECTION_NODE = 4;
-  var ENTITY_REFERENCE_NODE = NodeType.ENTITY_REFERENCE_NODE = 5;
-  var ENTITY_NODE = NodeType.ENTITY_NODE = 6;
-  var PROCESSING_INSTRUCTION_NODE = NodeType.PROCESSING_INSTRUCTION_NODE = 7;
-  var COMMENT_NODE = NodeType.COMMENT_NODE = 8;
-  var DOCUMENT_NODE = NodeType.DOCUMENT_NODE = 9;
-  var DOCUMENT_TYPE_NODE = NodeType.DOCUMENT_TYPE_NODE = 10;
-  var DOCUMENT_FRAGMENT_NODE = NodeType.DOCUMENT_FRAGMENT_NODE = 11;
-  var NOTATION_NODE = NodeType.NOTATION_NODE = 12; // ExceptionCode
-
-  var ExceptionCode = {};
-  var ExceptionMessage = {};
-  ExceptionCode.INDEX_SIZE_ERR = (ExceptionMessage[1] = "Index size error", 1);
-  ExceptionCode.DOMSTRING_SIZE_ERR = (ExceptionMessage[2] = "DOMString size error", 2);
-  var HIERARCHY_REQUEST_ERR = ExceptionCode.HIERARCHY_REQUEST_ERR = (ExceptionMessage[3] = "Hierarchy request error", 3);
-  ExceptionCode.WRONG_DOCUMENT_ERR = (ExceptionMessage[4] = "Wrong document", 4);
-  ExceptionCode.INVALID_CHARACTER_ERR = (ExceptionMessage[5] = "Invalid character", 5);
-  ExceptionCode.NO_DATA_ALLOWED_ERR = (ExceptionMessage[6] = "No data allowed", 6);
-  ExceptionCode.NO_MODIFICATION_ALLOWED_ERR = (ExceptionMessage[7] = "No modification allowed", 7);
-  var NOT_FOUND_ERR = ExceptionCode.NOT_FOUND_ERR = (ExceptionMessage[8] = "Not found", 8);
-  ExceptionCode.NOT_SUPPORTED_ERR = (ExceptionMessage[9] = "Not supported", 9);
-  var INUSE_ATTRIBUTE_ERR = ExceptionCode.INUSE_ATTRIBUTE_ERR = (ExceptionMessage[10] = "Attribute in use", 10); //level2
-
-  ExceptionCode.INVALID_STATE_ERR = (ExceptionMessage[11] = "Invalid state", 11);
-  ExceptionCode.SYNTAX_ERR = (ExceptionMessage[12] = "Syntax error", 12);
-  ExceptionCode.INVALID_MODIFICATION_ERR = (ExceptionMessage[13] = "Invalid modification", 13);
-  ExceptionCode.NAMESPACE_ERR = (ExceptionMessage[14] = "Invalid namespace", 14);
-  ExceptionCode.INVALID_ACCESS_ERR = (ExceptionMessage[15] = "Invalid access", 15);
-  /**
-   * DOM Level 2
-   * Object DOMException
-   * @see http://www.w3.org/TR/2000/REC-DOM-Level-2-Core-20001113/ecma-script-binding.html
-   * @see http://www.w3.org/TR/REC-DOM-Level-1/ecma-script-language-binding.html
-   */
-
-  function DOMException(code, message) {
-    if (message instanceof Error) {
-      var error = message;
-    } else {
-      error = this;
-      Error.call(this, ExceptionMessage[code]);
-      this.message = ExceptionMessage[code];
-      if (Error.captureStackTrace) Error.captureStackTrace(this, DOMException);
-    }
-
-    error.code = code;
-    if (message) this.message = this.message + ": " + message;
-    return error;
-  }
-  DOMException.prototype = Error.prototype;
-  copy(ExceptionCode, DOMException);
-  /**
-   * @see http://www.w3.org/TR/2000/REC-DOM-Level-2-Core-20001113/core.html#ID-536297177
-   * The NodeList interface provides the abstraction of an ordered collection of nodes, without defining or constraining how this collection is implemented. NodeList objects in the DOM are live.
-   * The items in the NodeList are accessible via an integral index, starting from 0.
-   */
-
-  function NodeList() {}
-  NodeList.prototype = {
-    /**
-     * The number of nodes in the list. The range of valid child node indices is 0 to length-1 inclusive.
-     * @standard level1
-     */
-    length: 0,
-
-    /**
-     * Returns the indexth item in the collection. If index is greater than or equal to the number of nodes in the list, this returns null.
-     * @standard level1
-     * @param index  unsigned long 
-     *   Index into the collection.
-     * @return Node
-     * 	The node at the indexth position in the NodeList, or null if that is not a valid index. 
-     */
-    item: function item(index) {
-      return this[index] || null;
-    },
-    toString: function toString(isHTML, nodeFilter) {
-      for (var buf = [], i = 0; i < this.length; i++) {
-        serializeToString(this[i], buf, isHTML, nodeFilter);
-      }
-
-      return buf.join('');
-    }
-  };
-
-  function LiveNodeList(node, refresh) {
-    this._node = node;
-    this._refresh = refresh;
-
-    _updateLiveList(this);
-  }
-
-  function _updateLiveList(list) {
-    var inc = list._node._inc || list._node.ownerDocument._inc;
-
-    if (list._inc != inc) {
-      var ls = list._refresh(list._node); //console.log(ls.length)
-
-
-      __set__(list, 'length', ls.length);
-
-      copy(ls, list);
-      list._inc = inc;
-    }
-  }
-
-  LiveNodeList.prototype.item = function (i) {
-    _updateLiveList(this);
-
-    return this[i];
-  };
-
-  _extends(LiveNodeList, NodeList);
-  /**
-   * Objects implementing the NamedNodeMap interface are used
-   * to represent collections of nodes that can be accessed by name.
-   * Note that NamedNodeMap does not inherit from NodeList;
-   * NamedNodeMaps are not maintained in any particular order.
-   * Objects contained in an object implementing NamedNodeMap may also be accessed by an ordinal index,
-   * but this is simply to allow convenient enumeration of the contents of a NamedNodeMap,
-   * and does not imply that the DOM specifies an order to these Nodes.
-   * NamedNodeMap objects in the DOM are live.
-   * used for attributes or DocumentType entities 
-   */
-
-
-  function NamedNodeMap() {}
-
-  function _findNodeIndex(list, node) {
-    var i = list.length;
-
-    while (i--) {
-      if (list[i] === node) {
-        return i;
-      }
-    }
-  }
-
-  function _addNamedNode(el, list, newAttr, oldAttr) {
-    if (oldAttr) {
-      list[_findNodeIndex(list, oldAttr)] = newAttr;
-    } else {
-      list[list.length++] = newAttr;
-    }
-
-    if (el) {
-      newAttr.ownerElement = el;
-      var doc = el.ownerDocument;
-
-      if (doc) {
-        oldAttr && _onRemoveAttribute(doc, el, oldAttr);
-
-        _onAddAttribute(doc, el, newAttr);
-      }
-    }
-  }
-
-  function _removeNamedNode(el, list, attr) {
-    //console.log('remove attr:'+attr)
-    var i = _findNodeIndex(list, attr);
-
-    if (i >= 0) {
-      var lastIndex = list.length - 1;
-
-      while (i < lastIndex) {
-        list[i] = list[++i];
-      }
-
-      list.length = lastIndex;
-
-      if (el) {
-        var doc = el.ownerDocument;
-
-        if (doc) {
-          _onRemoveAttribute(doc, el, attr);
-
-          attr.ownerElement = null;
-        }
-      }
-    } else {
-      throw DOMException(NOT_FOUND_ERR, new Error(el.tagName + '@' + attr));
-    }
-  }
-
-  NamedNodeMap.prototype = {
-    length: 0,
-    item: NodeList.prototype.item,
-    getNamedItem: function getNamedItem(key) {
-      //		if(key.indexOf(':')>0 || key == 'xmlns'){
-      //			return null;
-      //		}
-      //console.log()
-      var i = this.length;
-
-      while (i--) {
-        var attr = this[i]; //console.log(attr.nodeName,key)
-
-        if (attr.nodeName == key) {
-          return attr;
-        }
-      }
-    },
-    setNamedItem: function setNamedItem(attr) {
-      var el = attr.ownerElement;
-
-      if (el && el != this._ownerElement) {
-        throw new DOMException(INUSE_ATTRIBUTE_ERR);
-      }
-
-      var oldAttr = this.getNamedItem(attr.nodeName);
-
-      _addNamedNode(this._ownerElement, this, attr, oldAttr);
-
-      return oldAttr;
-    },
-
-    /* returns Node */
-    setNamedItemNS: function setNamedItemNS(attr) {
-      // raises: WRONG_DOCUMENT_ERR,NO_MODIFICATION_ALLOWED_ERR,INUSE_ATTRIBUTE_ERR
-      var el = attr.ownerElement,
-          oldAttr;
-
-      if (el && el != this._ownerElement) {
-        throw new DOMException(INUSE_ATTRIBUTE_ERR);
-      }
-
-      oldAttr = this.getNamedItemNS(attr.namespaceURI, attr.localName);
-
-      _addNamedNode(this._ownerElement, this, attr, oldAttr);
-
-      return oldAttr;
-    },
-
-    /* returns Node */
-    removeNamedItem: function removeNamedItem(key) {
-      var attr = this.getNamedItem(key);
-
-      _removeNamedNode(this._ownerElement, this, attr);
-
-      return attr;
-    },
-    // raises: NOT_FOUND_ERR,NO_MODIFICATION_ALLOWED_ERR
-    //for level2
-    removeNamedItemNS: function removeNamedItemNS(namespaceURI, localName) {
-      var attr = this.getNamedItemNS(namespaceURI, localName);
-
-      _removeNamedNode(this._ownerElement, this, attr);
-
-      return attr;
-    },
-    getNamedItemNS: function getNamedItemNS(namespaceURI, localName) {
-      var i = this.length;
-
-      while (i--) {
-        var node = this[i];
-
-        if (node.localName == localName && node.namespaceURI == namespaceURI) {
-          return node;
-        }
-      }
-
-      return null;
-    }
-  };
-  /**
-   * The DOMImplementation interface represents an object providing methods
-   * which are not dependent on any particular document.
-   * Such an object is returned by the `Document.implementation` property.
-   *
-   * __The individual methods describe the differences compared to the specs.__
-   *
-   * @constructor
-   *
-   * @see https://developer.mozilla.org/en-US/docs/Web/API/DOMImplementation MDN
-   * @see https://www.w3.org/TR/REC-DOM-Level-1/level-one-core.html#ID-102161490 DOM Level 1 Core (Initial)
-   * @see https://www.w3.org/TR/DOM-Level-2-Core/core.html#ID-102161490 DOM Level 2 Core
-   * @see https://www.w3.org/TR/DOM-Level-3-Core/core.html#ID-102161490 DOM Level 3 Core
-   * @see https://dom.spec.whatwg.org/#domimplementation DOM Living Standard
-   */
-
-  function DOMImplementation$1() {}
-
-  DOMImplementation$1.prototype = {
-    /**
-     * The DOMImplementation.hasFeature() method returns a Boolean flag indicating if a given feature is supported.
-     * The different implementations fairly diverged in what kind of features were reported.
-     * The latest version of the spec settled to force this method to always return true, where the functionality was accurate and in use.
-     *
-     * @deprecated It is deprecated and modern browsers return true in all cases.
-     *
-     * @param {string} feature
-     * @param {string} [version]
-     * @returns {boolean} always true
-     *
-     * @see https://developer.mozilla.org/en-US/docs/Web/API/DOMImplementation/hasFeature MDN
-     * @see https://www.w3.org/TR/REC-DOM-Level-1/level-one-core.html#ID-5CED94D7 DOM Level 1 Core
-     * @see https://dom.spec.whatwg.org/#dom-domimplementation-hasfeature DOM Living Standard
-     */
-    hasFeature: function hasFeature(feature, version) {
-      return true;
-    },
-
-    /**
-     * Creates an XML Document object of the specified type with its document element.
-     *
-     * __It behaves slightly different from the description in the living standard__:
-     * - There is no interface/class `XMLDocument`, it returns a `Document` instance.
-     * - `contentType`, `encoding`, `mode`, `origin`, `url` fields are currently not declared.
-     * - this implementation is not validating names or qualified names
-     *   (when parsing XML strings, the SAX parser takes care of that)
-     *
-     * @param {string|null} namespaceURI
-     * @param {string} qualifiedName
-     * @param {DocumentType=null} doctype
-     * @returns {Document}
-     *
-     * @see https://developer.mozilla.org/en-US/docs/Web/API/DOMImplementation/createDocument MDN
-     * @see https://www.w3.org/TR/DOM-Level-2-Core/core.html#Level-2-Core-DOM-createDocument DOM Level 2 Core (initial)
-     * @see https://dom.spec.whatwg.org/#dom-domimplementation-createdocument  DOM Level 2 Core
-     *
-     * @see https://dom.spec.whatwg.org/#validate-and-extract DOM: Validate and extract
-     * @see https://www.w3.org/TR/xml/#NT-NameStartChar XML Spec: Names
-     * @see https://www.w3.org/TR/xml-names/#ns-qualnames XML Namespaces: Qualified names
-     */
-    createDocument: function createDocument(namespaceURI, qualifiedName, doctype) {
-      var doc = new Document();
-      doc.implementation = this;
-      doc.childNodes = new NodeList();
-      doc.doctype = doctype || null;
-
-      if (doctype) {
-        doc.appendChild(doctype);
-      }
-
-      if (qualifiedName) {
-        var root = doc.createElementNS(namespaceURI, qualifiedName);
-        doc.appendChild(root);
-      }
-
-      return doc;
-    },
-
-    /**
-     * Returns a doctype, with the given `qualifiedName`, `publicId`, and `systemId`.
-     *
-     * __This behavior is slightly different from the in the specs__:
-     * - this implementation is not validating names or qualified names
-     *   (when parsing XML strings, the SAX parser takes care of that)
-     *
-     * @param {string} qualifiedName
-     * @param {string} [publicId]
-     * @param {string} [systemId]
-     * @returns {DocumentType} which can either be used with `DOMImplementation.createDocument` upon document creation
-     * 				  or can be put into the document via methods like `Node.insertBefore()` or `Node.replaceChild()`
-     *
-     * @see https://developer.mozilla.org/en-US/docs/Web/API/DOMImplementation/createDocumentType MDN
-     * @see https://www.w3.org/TR/DOM-Level-2-Core/core.html#Level-2-Core-DOM-createDocType DOM Level 2 Core
-     * @see https://dom.spec.whatwg.org/#dom-domimplementation-createdocumenttype DOM Living Standard
-     *
-     * @see https://dom.spec.whatwg.org/#validate-and-extract DOM: Validate and extract
-     * @see https://www.w3.org/TR/xml/#NT-NameStartChar XML Spec: Names
-     * @see https://www.w3.org/TR/xml-names/#ns-qualnames XML Namespaces: Qualified names
-     */
-    createDocumentType: function createDocumentType(qualifiedName, publicId, systemId) {
-      var node = new DocumentType();
-      node.name = qualifiedName;
-      node.nodeName = qualifiedName;
-      node.publicId = publicId || '';
-      node.systemId = systemId || '';
-      return node;
-    }
-  };
-  /**
-   * @see http://www.w3.org/TR/2000/REC-DOM-Level-2-Core-20001113/core.html#ID-1950641247
-   */
-
-  function Node() {}
-  Node.prototype = {
-    firstChild: null,
-    lastChild: null,
-    previousSibling: null,
-    nextSibling: null,
-    attributes: null,
-    parentNode: null,
-    childNodes: null,
-    ownerDocument: null,
-    nodeValue: null,
-    namespaceURI: null,
-    prefix: null,
-    localName: null,
-    // Modified in DOM Level 2:
-    insertBefore: function insertBefore(newChild, refChild) {
-      //raises 
-      return _insertBefore(this, newChild, refChild);
-    },
-    replaceChild: function replaceChild(newChild, oldChild) {
-      //raises 
-      this.insertBefore(newChild, oldChild);
-
-      if (oldChild) {
-        this.removeChild(oldChild);
-      }
-    },
-    removeChild: function removeChild(oldChild) {
-      return _removeChild(this, oldChild);
-    },
-    appendChild: function appendChild(newChild) {
-      return this.insertBefore(newChild, null);
-    },
-    hasChildNodes: function hasChildNodes() {
-      return this.firstChild != null;
-    },
-    cloneNode: function cloneNode(deep) {
-      return _cloneNode(this.ownerDocument || this, this, deep);
-    },
-    // Modified in DOM Level 2:
-    normalize: function normalize() {
-      var child = this.firstChild;
-
-      while (child) {
-        var next = child.nextSibling;
-
-        if (next && next.nodeType == TEXT_NODE && child.nodeType == TEXT_NODE) {
-          this.removeChild(next);
-          child.appendData(next.data);
-        } else {
-          child.normalize();
-          child = next;
-        }
-      }
-    },
-    // Introduced in DOM Level 2:
-    isSupported: function isSupported(feature, version) {
-      return this.ownerDocument.implementation.hasFeature(feature, version);
-    },
-    // Introduced in DOM Level 2:
-    hasAttributes: function hasAttributes() {
-      return this.attributes.length > 0;
-    },
-
-    /**
-     * Look up the prefix associated to the given namespace URI, starting from this node.
-     * **The default namespace declarations are ignored by this method.**
-     * See Namespace Prefix Lookup for details on the algorithm used by this method.
-     *
-     * _Note: The implementation seems to be incomplete when compared to the algorithm described in the specs._
-     *
-     * @param {string | null} namespaceURI
-     * @returns {string | null}
-     * @see https://www.w3.org/TR/DOM-Level-3-Core/core.html#Node3-lookupNamespacePrefix
-     * @see https://www.w3.org/TR/DOM-Level-3-Core/namespaces-algorithms.html#lookupNamespacePrefixAlgo
-     * @see https://dom.spec.whatwg.org/#dom-node-lookupprefix
-     * @see https://github.com/xmldom/xmldom/issues/322
-     */
-    lookupPrefix: function lookupPrefix(namespaceURI) {
-      var el = this;
-
-      while (el) {
-        var map = el._nsMap; //console.dir(map)
-
-        if (map) {
-          for (var n in map) {
-            if (map[n] == namespaceURI) {
-              return n;
-            }
-          }
-        }
-
-        el = el.nodeType == ATTRIBUTE_NODE ? el.ownerDocument : el.parentNode;
-      }
-
-      return null;
-    },
-    // Introduced in DOM Level 3:
-    lookupNamespaceURI: function lookupNamespaceURI(prefix) {
-      var el = this;
-
-      while (el) {
-        var map = el._nsMap; //console.dir(map)
-
-        if (map) {
-          if (prefix in map) {
-            return map[prefix];
-          }
-        }
-
-        el = el.nodeType == ATTRIBUTE_NODE ? el.ownerDocument : el.parentNode;
-      }
-
-      return null;
-    },
-    // Introduced in DOM Level 3:
-    isDefaultNamespace: function isDefaultNamespace(namespaceURI) {
-      var prefix = this.lookupPrefix(namespaceURI);
-      return prefix == null;
-    }
-  };
-
-  function _xmlEncoder(c) {
-    return c == '<' && '&lt;' || c == '>' && '&gt;' || c == '&' && '&amp;' || c == '"' && '&quot;' || '&#' + c.charCodeAt() + ';';
-  }
-
-  copy(NodeType, Node);
-  copy(NodeType, Node.prototype);
-  /**
-   * @param callback return true for continue,false for break
-   * @return boolean true: break visit;
-   */
-
-  function _visitNode(node, callback) {
-    if (callback(node)) {
-      return true;
-    }
-
-    if (node = node.firstChild) {
-      do {
-        if (_visitNode(node, callback)) {
-          return true;
-        }
-      } while (node = node.nextSibling);
-    }
-  }
-
-  function Document() {}
-
-  function _onAddAttribute(doc, el, newAttr) {
-    doc && doc._inc++;
-    var ns = newAttr.namespaceURI;
-
-    if (ns === NAMESPACE$2.XMLNS) {
-      //update namespace
-      el._nsMap[newAttr.prefix ? newAttr.localName : ''] = newAttr.value;
-    }
-  }
-
-  function _onRemoveAttribute(doc, el, newAttr, remove) {
-    doc && doc._inc++;
-    var ns = newAttr.namespaceURI;
-
-    if (ns === NAMESPACE$2.XMLNS) {
-      //update namespace
-      delete el._nsMap[newAttr.prefix ? newAttr.localName : ''];
-    }
-  }
-
-  function _onUpdateChild(doc, el, newChild) {
-    if (doc && doc._inc) {
-      doc._inc++; //update childNodes
-
-      var cs = el.childNodes;
-
-      if (newChild) {
-        cs[cs.length++] = newChild;
-      } else {
-        //console.log(1)
-        var child = el.firstChild;
-        var i = 0;
-
-        while (child) {
-          cs[i++] = child;
-          child = child.nextSibling;
-        }
-
-        cs.length = i;
-      }
-    }
-  }
-  /**
-   * attributes;
-   * children;
-   * 
-   * writeable properties:
-   * nodeValue,Attr:value,CharacterData:data
-   * prefix
-   */
-
-
-  function _removeChild(parentNode, child) {
-    var previous = child.previousSibling;
-    var next = child.nextSibling;
-
-    if (previous) {
-      previous.nextSibling = next;
-    } else {
-      parentNode.firstChild = next;
-    }
-
-    if (next) {
-      next.previousSibling = previous;
-    } else {
-      parentNode.lastChild = previous;
-    }
-
-    _onUpdateChild(parentNode.ownerDocument, parentNode);
-
-    return child;
-  }
-  /**
-   * preformance key(refChild == null)
-   */
-
-
-  function _insertBefore(parentNode, newChild, nextChild) {
-    var cp = newChild.parentNode;
-
-    if (cp) {
-      cp.removeChild(newChild); //remove and update
-    }
-
-    if (newChild.nodeType === DOCUMENT_FRAGMENT_NODE) {
-      var newFirst = newChild.firstChild;
-
-      if (newFirst == null) {
-        return newChild;
-      }
-
-      var newLast = newChild.lastChild;
-    } else {
-      newFirst = newLast = newChild;
-    }
-
-    var pre = nextChild ? nextChild.previousSibling : parentNode.lastChild;
-    newFirst.previousSibling = pre;
-    newLast.nextSibling = nextChild;
-
-    if (pre) {
-      pre.nextSibling = newFirst;
-    } else {
-      parentNode.firstChild = newFirst;
-    }
-
-    if (nextChild == null) {
-      parentNode.lastChild = newLast;
-    } else {
-      nextChild.previousSibling = newLast;
-    }
-
-    do {
-      newFirst.parentNode = parentNode;
-    } while (newFirst !== newLast && (newFirst = newFirst.nextSibling));
-
-    _onUpdateChild(parentNode.ownerDocument || parentNode, parentNode); //console.log(parentNode.lastChild.nextSibling == null)
-
-
-    if (newChild.nodeType == DOCUMENT_FRAGMENT_NODE) {
-      newChild.firstChild = newChild.lastChild = null;
-    }
-
-    return newChild;
-  }
-
-  function _appendSingleChild(parentNode, newChild) {
-    var cp = newChild.parentNode;
-
-    if (cp) {
-      var pre = parentNode.lastChild;
-      cp.removeChild(newChild); //remove and update
-
-      var pre = parentNode.lastChild;
-    }
-
-    var pre = parentNode.lastChild;
-    newChild.parentNode = parentNode;
-    newChild.previousSibling = pre;
-    newChild.nextSibling = null;
-
-    if (pre) {
-      pre.nextSibling = newChild;
-    } else {
-      parentNode.firstChild = newChild;
-    }
-
-    parentNode.lastChild = newChild;
-
-    _onUpdateChild(parentNode.ownerDocument, parentNode, newChild);
-
-    return newChild; //console.log("__aa",parentNode.lastChild.nextSibling == null)
-  }
-
-  Document.prototype = {
-    //implementation : null,
-    nodeName: '#document',
-    nodeType: DOCUMENT_NODE,
-
-    /**
-     * The DocumentType node of the document.
-     *
-     * @readonly
-     * @type DocumentType
-     */
-    doctype: null,
-    documentElement: null,
-    _inc: 1,
-    insertBefore: function insertBefore(newChild, refChild) {
-      //raises
-      if (newChild.nodeType == DOCUMENT_FRAGMENT_NODE) {
-        var child = newChild.firstChild;
-
-        while (child) {
-          var next = child.nextSibling;
-          this.insertBefore(child, refChild);
-          child = next;
-        }
-
-        return newChild;
-      }
-
-      if (this.documentElement == null && newChild.nodeType == ELEMENT_NODE) {
-        this.documentElement = newChild;
-      }
-
-      return _insertBefore(this, newChild, refChild), newChild.ownerDocument = this, newChild;
-    },
-    removeChild: function removeChild(oldChild) {
-      if (this.documentElement == oldChild) {
-        this.documentElement = null;
-      }
-
-      return _removeChild(this, oldChild);
-    },
-    // Introduced in DOM Level 2:
-    importNode: function importNode(importedNode, deep) {
-      return _importNode(this, importedNode, deep);
-    },
-    // Introduced in DOM Level 2:
-    getElementById: function getElementById(id) {
-      var rtv = null;
-
-      _visitNode(this.documentElement, function (node) {
-        if (node.nodeType == ELEMENT_NODE) {
-          if (node.getAttribute('id') == id) {
-            rtv = node;
-            return true;
-          }
-        }
-      });
-
-      return rtv;
-    },
-
-    /**
-     * The `getElementsByClassName` method of `Document` interface returns an array-like object
-     * of all child elements which have **all** of the given class name(s).
-     *
-     * Returns an empty list if `classeNames` is an empty string or only contains HTML white space characters.
-     *
-     *
-     * Warning: This is a live LiveNodeList.
-     * Changes in the DOM will reflect in the array as the changes occur.
-     * If an element selected by this array no longer qualifies for the selector,
-     * it will automatically be removed. Be aware of this for iteration purposes.
-     *
-     * @param {string} classNames is a string representing the class name(s) to match; multiple class names are separated by (ASCII-)whitespace
-     *
-     * @see https://developer.mozilla.org/en-US/docs/Web/API/Document/getElementsByClassName
-     * @see https://dom.spec.whatwg.org/#concept-getelementsbyclassname
-     */
-    getElementsByClassName: function getElementsByClassName(classNames) {
-      var classNamesSet = toOrderedSet(classNames);
-      return new LiveNodeList(this, function (base) {
-        var ls = [];
-
-        if (classNamesSet.length > 0) {
-          _visitNode(base.documentElement, function (node) {
-            if (node !== base && node.nodeType === ELEMENT_NODE) {
-              var nodeClassNames = node.getAttribute('class'); // can be null if the attribute does not exist
-
-              if (nodeClassNames) {
-                // before splitting and iterating just compare them for the most common case
-                var matches = classNames === nodeClassNames;
-
-                if (!matches) {
-                  var nodeClassNamesSet = toOrderedSet(nodeClassNames);
-                  matches = classNamesSet.every(arrayIncludes(nodeClassNamesSet));
-                }
-
-                if (matches) {
-                  ls.push(node);
-                }
-              }
-            }
-          });
-        }
-
-        return ls;
-      });
-    },
-    //document factory method:
-    createElement: function createElement(tagName) {
-      var node = new Element();
-      node.ownerDocument = this;
-      node.nodeName = tagName;
-      node.tagName = tagName;
-      node.localName = tagName;
-      node.childNodes = new NodeList();
-      var attrs = node.attributes = new NamedNodeMap();
-      attrs._ownerElement = node;
-      return node;
-    },
-    createDocumentFragment: function createDocumentFragment() {
-      var node = new DocumentFragment();
-      node.ownerDocument = this;
-      node.childNodes = new NodeList();
-      return node;
-    },
-    createTextNode: function createTextNode(data) {
-      var node = new Text();
-      node.ownerDocument = this;
-      node.appendData(data);
-      return node;
-    },
-    createComment: function createComment(data) {
-      var node = new Comment();
-      node.ownerDocument = this;
-      node.appendData(data);
-      return node;
-    },
-    createCDATASection: function createCDATASection(data) {
-      var node = new CDATASection();
-      node.ownerDocument = this;
-      node.appendData(data);
-      return node;
-    },
-    createProcessingInstruction: function createProcessingInstruction(target, data) {
-      var node = new ProcessingInstruction();
-      node.ownerDocument = this;
-      node.tagName = node.target = target;
-      node.nodeValue = node.data = data;
-      return node;
-    },
-    createAttribute: function createAttribute(name) {
-      var node = new Attr();
-      node.ownerDocument = this;
-      node.name = name;
-      node.nodeName = name;
-      node.localName = name;
-      node.specified = true;
-      return node;
-    },
-    createEntityReference: function createEntityReference(name) {
-      var node = new EntityReference();
-      node.ownerDocument = this;
-      node.nodeName = name;
-      return node;
-    },
-    // Introduced in DOM Level 2:
-    createElementNS: function createElementNS(namespaceURI, qualifiedName) {
-      var node = new Element();
-      var pl = qualifiedName.split(':');
-      var attrs = node.attributes = new NamedNodeMap();
-      node.childNodes = new NodeList();
-      node.ownerDocument = this;
-      node.nodeName = qualifiedName;
-      node.tagName = qualifiedName;
-      node.namespaceURI = namespaceURI;
-
-      if (pl.length == 2) {
-        node.prefix = pl[0];
-        node.localName = pl[1];
-      } else {
-        //el.prefix = null;
-        node.localName = qualifiedName;
-      }
-
-      attrs._ownerElement = node;
-      return node;
-    },
-    // Introduced in DOM Level 2:
-    createAttributeNS: function createAttributeNS(namespaceURI, qualifiedName) {
-      var node = new Attr();
-      var pl = qualifiedName.split(':');
-      node.ownerDocument = this;
-      node.nodeName = qualifiedName;
-      node.name = qualifiedName;
-      node.namespaceURI = namespaceURI;
-      node.specified = true;
-
-      if (pl.length == 2) {
-        node.prefix = pl[0];
-        node.localName = pl[1];
-      } else {
-        //el.prefix = null;
-        node.localName = qualifiedName;
-      }
-
-      return node;
-    }
-  };
-
-  _extends(Document, Node);
-
-  function Element() {
-    this._nsMap = {};
-  }
-  Element.prototype = {
-    nodeType: ELEMENT_NODE,
-    hasAttribute: function hasAttribute(name) {
-      return this.getAttributeNode(name) != null;
-    },
-    getAttribute: function getAttribute(name) {
-      var attr = this.getAttributeNode(name);
-      return attr && attr.value || '';
-    },
-    getAttributeNode: function getAttributeNode(name) {
-      return this.attributes.getNamedItem(name);
-    },
-    setAttribute: function setAttribute(name, value) {
-      var attr = this.ownerDocument.createAttribute(name);
-      attr.value = attr.nodeValue = "" + value;
-      this.setAttributeNode(attr);
-    },
-    removeAttribute: function removeAttribute(name) {
-      var attr = this.getAttributeNode(name);
-      attr && this.removeAttributeNode(attr);
-    },
-    //four real opeartion method
-    appendChild: function appendChild(newChild) {
-      if (newChild.nodeType === DOCUMENT_FRAGMENT_NODE) {
-        return this.insertBefore(newChild, null);
-      } else {
-        return _appendSingleChild(this, newChild);
-      }
-    },
-    setAttributeNode: function setAttributeNode(newAttr) {
-      return this.attributes.setNamedItem(newAttr);
-    },
-    setAttributeNodeNS: function setAttributeNodeNS(newAttr) {
-      return this.attributes.setNamedItemNS(newAttr);
-    },
-    removeAttributeNode: function removeAttributeNode(oldAttr) {
-      //console.log(this == oldAttr.ownerElement)
-      return this.attributes.removeNamedItem(oldAttr.nodeName);
-    },
-    //get real attribute name,and remove it by removeAttributeNode
-    removeAttributeNS: function removeAttributeNS(namespaceURI, localName) {
-      var old = this.getAttributeNodeNS(namespaceURI, localName);
-      old && this.removeAttributeNode(old);
-    },
-    hasAttributeNS: function hasAttributeNS(namespaceURI, localName) {
-      return this.getAttributeNodeNS(namespaceURI, localName) != null;
-    },
-    getAttributeNS: function getAttributeNS(namespaceURI, localName) {
-      var attr = this.getAttributeNodeNS(namespaceURI, localName);
-      return attr && attr.value || '';
-    },
-    setAttributeNS: function setAttributeNS(namespaceURI, qualifiedName, value) {
-      var attr = this.ownerDocument.createAttributeNS(namespaceURI, qualifiedName);
-      attr.value = attr.nodeValue = "" + value;
-      this.setAttributeNode(attr);
-    },
-    getAttributeNodeNS: function getAttributeNodeNS(namespaceURI, localName) {
-      return this.attributes.getNamedItemNS(namespaceURI, localName);
-    },
-    getElementsByTagName: function getElementsByTagName(tagName) {
-      return new LiveNodeList(this, function (base) {
-        var ls = [];
-
-        _visitNode(base, function (node) {
-          if (node !== base && node.nodeType == ELEMENT_NODE && (tagName === '*' || node.tagName == tagName)) {
-            ls.push(node);
-          }
-        });
-
-        return ls;
-      });
-    },
-    getElementsByTagNameNS: function getElementsByTagNameNS(namespaceURI, localName) {
-      return new LiveNodeList(this, function (base) {
-        var ls = [];
-
-        _visitNode(base, function (node) {
-          if (node !== base && node.nodeType === ELEMENT_NODE && (namespaceURI === '*' || node.namespaceURI === namespaceURI) && (localName === '*' || node.localName == localName)) {
-            ls.push(node);
-          }
-        });
-
-        return ls;
-      });
-    }
-  };
-  Document.prototype.getElementsByTagName = Element.prototype.getElementsByTagName;
-  Document.prototype.getElementsByTagNameNS = Element.prototype.getElementsByTagNameNS;
-
-  _extends(Element, Node);
-
-  function Attr() {}
-  Attr.prototype.nodeType = ATTRIBUTE_NODE;
-
-  _extends(Attr, Node);
-
-  function CharacterData() {}
-  CharacterData.prototype = {
-    data: '',
-    substringData: function substringData(offset, count) {
-      return this.data.substring(offset, offset + count);
-    },
-    appendData: function appendData(text) {
-      text = this.data + text;
-      this.nodeValue = this.data = text;
-      this.length = text.length;
-    },
-    insertData: function insertData(offset, text) {
-      this.replaceData(offset, 0, text);
-    },
-    appendChild: function appendChild(newChild) {
-      throw new Error(ExceptionMessage[HIERARCHY_REQUEST_ERR]);
-    },
-    deleteData: function deleteData(offset, count) {
-      this.replaceData(offset, count, "");
-    },
-    replaceData: function replaceData(offset, count, text) {
-      var start = this.data.substring(0, offset);
-      var end = this.data.substring(offset + count);
-      text = start + text + end;
-      this.nodeValue = this.data = text;
-      this.length = text.length;
-    }
-  };
-
-  _extends(CharacterData, Node);
-
-  function Text() {}
-  Text.prototype = {
-    nodeName: "#text",
-    nodeType: TEXT_NODE,
-    splitText: function splitText(offset) {
-      var text = this.data;
-      var newText = text.substring(offset);
-      text = text.substring(0, offset);
-      this.data = this.nodeValue = text;
-      this.length = text.length;
-      var newNode = this.ownerDocument.createTextNode(newText);
-
-      if (this.parentNode) {
-        this.parentNode.insertBefore(newNode, this.nextSibling);
-      }
-
-      return newNode;
-    }
-  };
-
-  _extends(Text, CharacterData);
-
-  function Comment() {}
-  Comment.prototype = {
-    nodeName: "#comment",
-    nodeType: COMMENT_NODE
-  };
-
-  _extends(Comment, CharacterData);
-
-  function CDATASection() {}
-  CDATASection.prototype = {
-    nodeName: "#cdata-section",
-    nodeType: CDATA_SECTION_NODE
-  };
-
-  _extends(CDATASection, CharacterData);
-
-  function DocumentType() {}
-  DocumentType.prototype.nodeType = DOCUMENT_TYPE_NODE;
-
-  _extends(DocumentType, Node);
-
-  function Notation() {}
-  Notation.prototype.nodeType = NOTATION_NODE;
-
-  _extends(Notation, Node);
-
-  function Entity() {}
-  Entity.prototype.nodeType = ENTITY_NODE;
-
-  _extends(Entity, Node);
-
-  function EntityReference() {}
-  EntityReference.prototype.nodeType = ENTITY_REFERENCE_NODE;
-
-  _extends(EntityReference, Node);
-
-  function DocumentFragment() {}
-  DocumentFragment.prototype.nodeName = "#document-fragment";
-  DocumentFragment.prototype.nodeType = DOCUMENT_FRAGMENT_NODE;
-
-  _extends(DocumentFragment, Node);
-
-  function ProcessingInstruction() {}
-
-  ProcessingInstruction.prototype.nodeType = PROCESSING_INSTRUCTION_NODE;
-
-  _extends(ProcessingInstruction, Node);
-
-  function XMLSerializer$1() {}
-
-  XMLSerializer$1.prototype.serializeToString = function (node, isHtml, nodeFilter) {
-    return nodeSerializeToString.call(node, isHtml, nodeFilter);
-  };
-
-  Node.prototype.toString = nodeSerializeToString;
-
-  function nodeSerializeToString(isHtml, nodeFilter) {
-    var buf = [];
-    var refNode = this.nodeType == 9 && this.documentElement || this;
-    var prefix = refNode.prefix;
-    var uri = refNode.namespaceURI;
-
-    if (uri && prefix == null) {
-      //console.log(prefix)
-      var prefix = refNode.lookupPrefix(uri);
-
-      if (prefix == null) {
-        //isHTML = true;
-        var visibleNamespaces = [{
-          namespace: uri,
-          prefix: null
-        } //{namespace:uri,prefix:''}
-        ];
-      }
-    }
-
-    serializeToString(this, buf, isHtml, nodeFilter, visibleNamespaces); //console.log('###',this.nodeType,uri,prefix,buf.join(''))
-
-    return buf.join('');
-  }
-
-  function needNamespaceDefine(node, isHTML, visibleNamespaces) {
-    var prefix = node.prefix || '';
-    var uri = node.namespaceURI; // According to [Namespaces in XML 1.0](https://www.w3.org/TR/REC-xml-names/#ns-using) ,
-    // and more specifically https://www.w3.org/TR/REC-xml-names/#nsc-NoPrefixUndecl :
-    // > In a namespace declaration for a prefix [...], the attribute value MUST NOT be empty.
-    // in a similar manner [Namespaces in XML 1.1](https://www.w3.org/TR/xml-names11/#ns-using)
-    // and more specifically https://www.w3.org/TR/xml-names11/#nsc-NSDeclared :
-    // > [...] Furthermore, the attribute value [...] must not be an empty string.
-    // so serializing empty namespace value like xmlns:ds="" would produce an invalid XML document.
-
-    if (!uri) {
-      return false;
-    }
-
-    if (prefix === "xml" && uri === NAMESPACE$2.XML || uri === NAMESPACE$2.XMLNS) {
-      return false;
-    }
-
-    var i = visibleNamespaces.length;
-
-    while (i--) {
-      var ns = visibleNamespaces[i]; // get namespace prefix
-
-      if (ns.prefix === prefix) {
-        return ns.namespace !== uri;
-      }
-    }
-
-    return true;
-  }
-  /**
-   * Well-formed constraint: No < in Attribute Values
-   * The replacement text of any entity referred to directly or indirectly in an attribute value must not contain a <.
-   * @see https://www.w3.org/TR/xml/#CleanAttrVals
-   * @see https://www.w3.org/TR/xml/#NT-AttValue
-   */
-
-
-  function addSerializedAttribute(buf, qualifiedName, value) {
-    buf.push(' ', qualifiedName, '="', value.replace(/[<&"]/g, _xmlEncoder), '"');
-  }
-
-  function serializeToString(node, buf, isHTML, nodeFilter, visibleNamespaces) {
-    if (!visibleNamespaces) {
-      visibleNamespaces = [];
-    }
-
-    if (nodeFilter) {
-      node = nodeFilter(node);
-
-      if (node) {
-        if (typeof node == 'string') {
-          buf.push(node);
-          return;
-        }
-      } else {
-        return;
-      } //buf.sort.apply(attrs, attributeSorter);
-
-    }
-
-    switch (node.nodeType) {
-      case ELEMENT_NODE:
-        var attrs = node.attributes;
-        var len = attrs.length;
-        var child = node.firstChild;
-        var nodeName = node.tagName;
-        isHTML = NAMESPACE$2.isHTML(node.namespaceURI) || isHTML;
-        var prefixedNodeName = nodeName;
-
-        if (!isHTML && !node.prefix && node.namespaceURI) {
-          var defaultNS; // lookup current default ns from `xmlns` attribute
-
-          for (var ai = 0; ai < attrs.length; ai++) {
-            if (attrs.item(ai).name === 'xmlns') {
-              defaultNS = attrs.item(ai).value;
-              break;
-            }
-          }
-
-          if (!defaultNS) {
-            // lookup current default ns in visibleNamespaces
-            for (var nsi = visibleNamespaces.length - 1; nsi >= 0; nsi--) {
-              var namespace = visibleNamespaces[nsi];
-
-              if (namespace.prefix === '' && namespace.namespace === node.namespaceURI) {
-                defaultNS = namespace.namespace;
-                break;
-              }
-            }
-          }
-
-          if (defaultNS !== node.namespaceURI) {
-            for (var nsi = visibleNamespaces.length - 1; nsi >= 0; nsi--) {
-              var namespace = visibleNamespaces[nsi];
-
-              if (namespace.namespace === node.namespaceURI) {
-                if (namespace.prefix) {
-                  prefixedNodeName = namespace.prefix + ':' + nodeName;
-                }
-
-                break;
-              }
-            }
-          }
-        }
-
-        buf.push('<', prefixedNodeName);
-
-        for (var i = 0; i < len; i++) {
-          // add namespaces for attributes
-          var attr = attrs.item(i);
-
-          if (attr.prefix == 'xmlns') {
-            visibleNamespaces.push({
-              prefix: attr.localName,
-              namespace: attr.value
+                })[entry.type].call(self);
             });
-          } else if (attr.nodeName == 'xmlns') {
-            visibleNamespaces.push({
-              prefix: '',
-              namespace: attr.value
+        }
+        warnOnMissingAttributes_(identifier, attributes, required) {
+            const missing = [];
+            required.forEach(function (key) {
+                if (!attributes.hasOwnProperty(key)) {
+                    missing.push(key);
+                }
             });
-          }
-        }
-
-        for (var i = 0; i < len; i++) {
-          var attr = attrs.item(i);
-
-          if (needNamespaceDefine(attr, isHTML, visibleNamespaces)) {
-            var prefix = attr.prefix || '';
-            var uri = attr.namespaceURI;
-            addSerializedAttribute(buf, prefix ? 'xmlns:' + prefix : "xmlns", uri);
-            visibleNamespaces.push({
-              prefix: prefix,
-              namespace: uri
-            });
-          }
-
-          serializeToString(attr, buf, isHTML, nodeFilter, visibleNamespaces);
-        } // add namespace for current node		
-
-
-        if (nodeName === prefixedNodeName && needNamespaceDefine(node, isHTML, visibleNamespaces)) {
-          var prefix = node.prefix || '';
-          var uri = node.namespaceURI;
-          addSerializedAttribute(buf, prefix ? 'xmlns:' + prefix : "xmlns", uri);
-          visibleNamespaces.push({
-            prefix: prefix,
-            namespace: uri
-          });
-        }
-
-        if (child || isHTML && !/^(?:meta|link|img|br|hr|input)$/i.test(nodeName)) {
-          buf.push('>'); //if is cdata child node
-
-          if (isHTML && /^script$/i.test(nodeName)) {
-            while (child) {
-              if (child.data) {
-                buf.push(child.data);
-              } else {
-                serializeToString(child, buf, isHTML, nodeFilter, visibleNamespaces.slice());
-              }
-
-              child = child.nextSibling;
+            if (missing.length) {
+                this.trigger('warn', {
+                    message: `${identifier} lacks required attribute(s): ${missing.join(', ')}`
+                });
             }
-          } else {
-            while (child) {
-              serializeToString(child, buf, isHTML, nodeFilter, visibleNamespaces.slice());
-              child = child.nextSibling;
-            }
-          }
-
-          buf.push('</', prefixedNodeName, '>');
-        } else {
-          buf.push('/>');
-        } // remove added visible namespaces
-        //visibleNamespaces.length = startVisibleNamespaces;
-
-
-        return;
-
-      case DOCUMENT_NODE:
-      case DOCUMENT_FRAGMENT_NODE:
-        var child = node.firstChild;
-
-        while (child) {
-          serializeToString(child, buf, isHTML, nodeFilter, visibleNamespaces.slice());
-          child = child.nextSibling;
         }
-
-        return;
-
-      case ATTRIBUTE_NODE:
-        return addSerializedAttribute(buf, node.name, node.value);
-
-      case TEXT_NODE:
         /**
-         * The ampersand character (&) and the left angle bracket (<) must not appear in their literal form,
-         * except when used as markup delimiters, or within a comment, a processing instruction, or a CDATA section.
-         * If they are needed elsewhere, they must be escaped using either numeric character references or the strings
-         * `&amp;` and `&lt;` respectively.
-         * The right angle bracket (>) may be represented using the string " &gt; ", and must, for compatibility,
-         * be escaped using either `&gt;` or a character reference when it appears in the string `]]>` in content,
-         * when that string is not marking the end of a CDATA section.
+         * Parse the input string and update the manifest object.
          *
-         * In the content of elements, character data is any string of characters
-         * which does not contain the start-delimiter of any markup
-         * and does not include the CDATA-section-close delimiter, `]]>`.
-         *
-         * @see https://www.w3.org/TR/xml/#NT-CharData
+         * @param {string} chunk a potentially incomplete portion of the manifest
          */
-        return buf.push(node.data.replace(/[<&]/g, _xmlEncoder).replace(/]]>/g, ']]&gt;'));
 
-      case CDATA_SECTION_NODE:
-        return buf.push('<![CDATA[', node.data, ']]>');
-
-      case COMMENT_NODE:
-        return buf.push("<!--", node.data, "-->");
-
-      case DOCUMENT_TYPE_NODE:
-        var pubid = node.publicId;
-        var sysid = node.systemId;
-        buf.push('<!DOCTYPE ', node.name);
-
-        if (pubid) {
-          buf.push(' PUBLIC ', pubid);
-
-          if (sysid && sysid != '.') {
-            buf.push(' ', sysid);
-          }
-
-          buf.push('>');
-        } else if (sysid && sysid != '.') {
-          buf.push(' SYSTEM ', sysid, '>');
-        } else {
-          var sub = node.internalSubset;
-
-          if (sub) {
-            buf.push(" [", sub, "]");
-          }
-
-          buf.push(">");
+        push(chunk) {
+            this.lineStream.push(chunk);
         }
+        /**
+         * Flush any remaining input. This can be handy if the last line of an M3U8
+         * manifest did not contain a trailing newline but the file has been
+         * completely received.
+         */
 
-        return;
-
-      case PROCESSING_INSTRUCTION_NODE:
-        return buf.push("<?", node.target, " ", node.data, "?>");
-
-      case ENTITY_REFERENCE_NODE:
-        return buf.push('&', node.nodeName, ';');
-      //case ENTITY_NODE:
-      //case NOTATION_NODE:
-
-      default:
-        buf.push('??', node.nodeName);
-    }
-  }
-
-  function _importNode(doc, node, deep) {
-    var node2;
-
-    switch (node.nodeType) {
-      case ELEMENT_NODE:
-        node2 = node.cloneNode(false);
-        node2.ownerDocument = doc;
-      //var attrs = node2.attributes;
-      //var len = attrs.length;
-      //for(var i=0;i<len;i++){
-      //node2.setAttributeNodeNS(importNode(doc,attrs.item(i),deep));
-      //}
-
-      case DOCUMENT_FRAGMENT_NODE:
-        break;
-
-      case ATTRIBUTE_NODE:
-        deep = true;
-        break;
-      //case ENTITY_REFERENCE_NODE:
-      //case PROCESSING_INSTRUCTION_NODE:
-      ////case TEXT_NODE:
-      //case CDATA_SECTION_NODE:
-      //case COMMENT_NODE:
-      //	deep = false;
-      //	break;
-      //case DOCUMENT_NODE:
-      //case DOCUMENT_TYPE_NODE:
-      //cannot be imported.
-      //case ENTITY_NODE:
-      //case NOTATION_NODE：
-      //can not hit in level3
-      //default:throw e;
-    }
-
-    if (!node2) {
-      node2 = node.cloneNode(false); //false
-    }
-
-    node2.ownerDocument = doc;
-    node2.parentNode = null;
-
-    if (deep) {
-      var child = node.firstChild;
-
-      while (child) {
-        node2.appendChild(_importNode(doc, child, deep));
-        child = child.nextSibling;
-      }
-    }
-
-    return node2;
-  } //
-  //var _relationMap = {firstChild:1,lastChild:1,previousSibling:1,nextSibling:1,
-  //					attributes:1,childNodes:1,parentNode:1,documentElement:1,doctype,};
-
-
-  function _cloneNode(doc, node, deep) {
-    var node2 = new node.constructor();
-
-    for (var n in node) {
-      var v = node[n];
-
-      if (typeof v != 'object') {
-        if (v != node2[n]) {
-          node2[n] = v;
+        end() {
+            // flush any buffered input
+            this.lineStream.push('\n');
+            this.trigger('end');
         }
-      }
-    }
+        /**
+         * Add an additional parser for non-standard tags
+         *
+         * @param {Object}   options              a map of options for the added parser
+         * @param {RegExp}   options.expression   a regular expression to match the custom header
+         * @param {string}   options.type         the type to register to the output
+         * @param {Function} [options.dataParser] function to parse the line into an object
+         * @param {boolean}  [options.segment]    should tag data be attached to the segment object
+         */
 
-    if (node.childNodes) {
-      node2.childNodes = new NodeList();
-    }
-
-    node2.ownerDocument = doc;
-
-    switch (node2.nodeType) {
-      case ELEMENT_NODE:
-        var attrs = node.attributes;
-        var attrs2 = node2.attributes = new NamedNodeMap();
-        var len = attrs.length;
-        attrs2._ownerElement = node2;
-
-        for (var i = 0; i < len; i++) {
-          node2.setAttributeNode(_cloneNode(doc, attrs.item(i), true));
+        addParser(options) {
+            this.parseStream.addParser(options);
         }
+        /**
+         * Add a custom header mapper
+         *
+         * @param {Object}   options
+         * @param {RegExp}   options.expression   a regular expression to match the custom header
+         * @param {Function} options.map          function to translate tag into a different tag
+         */
 
-        break;
-
-      case ATTRIBUTE_NODE:
-        deep = true;
-    }
-
-    if (deep) {
-      var child = node.firstChild;
-
-      while (child) {
-        node2.appendChild(_cloneNode(doc, child, deep));
-        child = child.nextSibling;
-      }
-    }
-
-    return node2;
-  }
-
-  function __set__(object, key, value) {
-    object[key] = value;
-  } //do dynamic
-
-
-  try {
-    if (Object.defineProperty) {
-      var getTextContent = function getTextContent(node) {
-        switch (node.nodeType) {
-          case ELEMENT_NODE:
-          case DOCUMENT_FRAGMENT_NODE:
-            var buf = [];
-            node = node.firstChild;
-
-            while (node) {
-              if (node.nodeType !== 7 && node.nodeType !== 8) {
-                buf.push(getTextContent(node));
-              }
-
-              node = node.nextSibling;
-            }
-
-            return buf.join('');
-
-          default:
-            return node.nodeValue;
+        addTagMapper(options) {
+            this.parseStream.addTagMapper(options);
         }
-      };
-
-      Object.defineProperty(LiveNodeList.prototype, 'length', {
-        get: function get() {
-          _updateLiveList(this);
-
-          return this.$$length;
-        }
-      });
-      Object.defineProperty(Node.prototype, 'textContent', {
-        get: function get() {
-          return getTextContent(this);
-        },
-        set: function set(data) {
-          switch (this.nodeType) {
-            case ELEMENT_NODE:
-            case DOCUMENT_FRAGMENT_NODE:
-              while (this.firstChild) {
-                this.removeChild(this.firstChild);
-              }
-
-              if (data || String(data)) {
-                this.appendChild(this.ownerDocument.createTextNode(data));
-              }
-
-              break;
-
-            default:
-              this.data = data;
-              this.value = data;
-              this.nodeValue = data;
-          }
-        }
-      });
-
-      __set__ = function __set__(object, key, value) {
-        //console.log(value)
-        object['$$' + key] = value;
-      };
-    }
-  } catch (e) {//ie8
-  } //if(typeof require == 'function'){
-
-
-  var DocumentType_1 = DocumentType;
-  var DOMException_1 = DOMException;
-  var DOMImplementation_1$1 = DOMImplementation$1;
-  var Element_1 = Element;
-  var Node_1 = Node;
-  var NodeList_1 = NodeList;
-  var XMLSerializer_1 = XMLSerializer$1; //}
-
-  var dom = {
-    DocumentType: DocumentType_1,
-    DOMException: DOMException_1,
-    DOMImplementation: DOMImplementation_1$1,
-    Element: Element_1,
-    Node: Node_1,
-    NodeList: NodeList_1,
-    XMLSerializer: XMLSerializer_1
-  };
-
-  var entities = createCommonjsModule(function (module, exports) {
-    var freeze = conventions.freeze;
-    /**
-     * The entities that are predefined in every XML document.
-     *
-     * @see https://www.w3.org/TR/2006/REC-xml11-20060816/#sec-predefined-ent W3C XML 1.1
-     * @see https://www.w3.org/TR/2008/REC-xml-20081126/#sec-predefined-ent W3C XML 1.0
-     * @see https://en.wikipedia.org/wiki/List_of_XML_and_HTML_character_entity_references#Predefined_entities_in_XML Wikipedia
-     */
-
-    exports.XML_ENTITIES = freeze({
-      amp: '&',
-      apos: "'",
-      gt: '>',
-      lt: '<',
-      quot: '"'
-    });
-    /**
-     * A map of currently 241 entities that are detected in an HTML document.
-     * They contain all entries from `XML_ENTITIES`.
-     *
-     * @see XML_ENTITIES
-     * @see DOMParser.parseFromString
-     * @see DOMImplementation.prototype.createHTMLDocument
-     * @see https://html.spec.whatwg.org/#named-character-references WHATWG HTML(5) Spec
-     * @see https://www.w3.org/TR/xml-entity-names/ W3C XML Entity Names
-     * @see https://www.w3.org/TR/html4/sgml/entities.html W3C HTML4/SGML
-     * @see https://en.wikipedia.org/wiki/List_of_XML_and_HTML_character_entity_references#Character_entity_references_in_HTML Wikipedia (HTML)
-     * @see https://en.wikipedia.org/wiki/List_of_XML_and_HTML_character_entity_references#Entities_representing_special_characters_in_XHTML Wikpedia (XHTML)
-     */
-
-    exports.HTML_ENTITIES = freeze({
-      lt: '<',
-      gt: '>',
-      amp: '&',
-      quot: '"',
-      apos: "'",
-      Agrave: "À",
-      Aacute: "Á",
-      Acirc: "Â",
-      Atilde: "Ã",
-      Auml: "Ä",
-      Aring: "Å",
-      AElig: "Æ",
-      Ccedil: "Ç",
-      Egrave: "È",
-      Eacute: "É",
-      Ecirc: "Ê",
-      Euml: "Ë",
-      Igrave: "Ì",
-      Iacute: "Í",
-      Icirc: "Î",
-      Iuml: "Ï",
-      ETH: "Ð",
-      Ntilde: "Ñ",
-      Ograve: "Ò",
-      Oacute: "Ó",
-      Ocirc: "Ô",
-      Otilde: "Õ",
-      Ouml: "Ö",
-      Oslash: "Ø",
-      Ugrave: "Ù",
-      Uacute: "Ú",
-      Ucirc: "Û",
-      Uuml: "Ü",
-      Yacute: "Ý",
-      THORN: "Þ",
-      szlig: "ß",
-      agrave: "à",
-      aacute: "á",
-      acirc: "â",
-      atilde: "ã",
-      auml: "ä",
-      aring: "å",
-      aelig: "æ",
-      ccedil: "ç",
-      egrave: "è",
-      eacute: "é",
-      ecirc: "ê",
-      euml: "ë",
-      igrave: "ì",
-      iacute: "í",
-      icirc: "î",
-      iuml: "ï",
-      eth: "ð",
-      ntilde: "ñ",
-      ograve: "ò",
-      oacute: "ó",
-      ocirc: "ô",
-      otilde: "õ",
-      ouml: "ö",
-      oslash: "ø",
-      ugrave: "ù",
-      uacute: "ú",
-      ucirc: "û",
-      uuml: "ü",
-      yacute: "ý",
-      thorn: "þ",
-      yuml: "ÿ",
-      nbsp: "\xA0",
-      iexcl: "¡",
-      cent: "¢",
-      pound: "£",
-      curren: "¤",
-      yen: "¥",
-      brvbar: "¦",
-      sect: "§",
-      uml: "¨",
-      copy: "©",
-      ordf: "ª",
-      laquo: "«",
-      not: "¬",
-      shy: "­­",
-      reg: "®",
-      macr: "¯",
-      deg: "°",
-      plusmn: "±",
-      sup2: "²",
-      sup3: "³",
-      acute: "´",
-      micro: "µ",
-      para: "¶",
-      middot: "·",
-      cedil: "¸",
-      sup1: "¹",
-      ordm: "º",
-      raquo: "»",
-      frac14: "¼",
-      frac12: "½",
-      frac34: "¾",
-      iquest: "¿",
-      times: "×",
-      divide: "÷",
-      forall: "∀",
-      part: "∂",
-      exist: "∃",
-      empty: "∅",
-      nabla: "∇",
-      isin: "∈",
-      notin: "∉",
-      ni: "∋",
-      prod: "∏",
-      sum: "∑",
-      minus: "−",
-      lowast: "∗",
-      radic: "√",
-      prop: "∝",
-      infin: "∞",
-      ang: "∠",
-      and: "∧",
-      or: "∨",
-      cap: "∩",
-      cup: "∪",
-      'int': "∫",
-      there4: "∴",
-      sim: "∼",
-      cong: "≅",
-      asymp: "≈",
-      ne: "≠",
-      equiv: "≡",
-      le: "≤",
-      ge: "≥",
-      sub: "⊂",
-      sup: "⊃",
-      nsub: "⊄",
-      sube: "⊆",
-      supe: "⊇",
-      oplus: "⊕",
-      otimes: "⊗",
-      perp: "⊥",
-      sdot: "⋅",
-      Alpha: "Α",
-      Beta: "Β",
-      Gamma: "Γ",
-      Delta: "Δ",
-      Epsilon: "Ε",
-      Zeta: "Ζ",
-      Eta: "Η",
-      Theta: "Θ",
-      Iota: "Ι",
-      Kappa: "Κ",
-      Lambda: "Λ",
-      Mu: "Μ",
-      Nu: "Ν",
-      Xi: "Ξ",
-      Omicron: "Ο",
-      Pi: "Π",
-      Rho: "Ρ",
-      Sigma: "Σ",
-      Tau: "Τ",
-      Upsilon: "Υ",
-      Phi: "Φ",
-      Chi: "Χ",
-      Psi: "Ψ",
-      Omega: "Ω",
-      alpha: "α",
-      beta: "β",
-      gamma: "γ",
-      delta: "δ",
-      epsilon: "ε",
-      zeta: "ζ",
-      eta: "η",
-      theta: "θ",
-      iota: "ι",
-      kappa: "κ",
-      lambda: "λ",
-      mu: "μ",
-      nu: "ν",
-      xi: "ξ",
-      omicron: "ο",
-      pi: "π",
-      rho: "ρ",
-      sigmaf: "ς",
-      sigma: "σ",
-      tau: "τ",
-      upsilon: "υ",
-      phi: "φ",
-      chi: "χ",
-      psi: "ψ",
-      omega: "ω",
-      thetasym: "ϑ",
-      upsih: "ϒ",
-      piv: "ϖ",
-      OElig: "Œ",
-      oelig: "œ",
-      Scaron: "Š",
-      scaron: "š",
-      Yuml: "Ÿ",
-      fnof: "ƒ",
-      circ: "ˆ",
-      tilde: "˜",
-      ensp: " ",
-      emsp: " ",
-      thinsp: " ",
-      zwnj: "‌",
-      zwj: "‍",
-      lrm: "‎",
-      rlm: "‏",
-      ndash: "–",
-      mdash: "—",
-      lsquo: "‘",
-      rsquo: "’",
-      sbquo: "‚",
-      ldquo: "“",
-      rdquo: "”",
-      bdquo: "„",
-      dagger: "†",
-      Dagger: "‡",
-      bull: "•",
-      hellip: "…",
-      permil: "‰",
-      prime: "′",
-      Prime: "″",
-      lsaquo: "‹",
-      rsaquo: "›",
-      oline: "‾",
-      euro: "€",
-      trade: "™",
-      larr: "←",
-      uarr: "↑",
-      rarr: "→",
-      darr: "↓",
-      harr: "↔",
-      crarr: "↵",
-      lceil: "⌈",
-      rceil: "⌉",
-      lfloor: "⌊",
-      rfloor: "⌋",
-      loz: "◊",
-      spades: "♠",
-      clubs: "♣",
-      hearts: "♥",
-      diams: "♦"
-    });
-    /**
-     * @deprecated use `HTML_ENTITIES` instead
-     * @see HTML_ENTITIES
-     */
-
-    exports.entityMap = exports.HTML_ENTITIES;
-  });
-  entities.XML_ENTITIES;
-  entities.HTML_ENTITIES;
-  entities.entityMap;
-
-  var NAMESPACE$1 = conventions.NAMESPACE; //[4]   	NameStartChar	   ::=   	":" | [A-Z] | "_" | [a-z] | [#xC0-#xD6] | [#xD8-#xF6] | [#xF8-#x2FF] | [#x370-#x37D] | [#x37F-#x1FFF] | [#x200C-#x200D] | [#x2070-#x218F] | [#x2C00-#x2FEF] | [#x3001-#xD7FF] | [#xF900-#xFDCF] | [#xFDF0-#xFFFD] | [#x10000-#xEFFFF]
-  //[4a]   	NameChar	   ::=   	NameStartChar | "-" | "." | [0-9] | #xB7 | [#x0300-#x036F] | [#x203F-#x2040]
-  //[5]   	Name	   ::=   	NameStartChar (NameChar)*
-
-  var nameStartChar = /[A-Z_a-z\xC0-\xD6\xD8-\xF6\u00F8-\u02FF\u0370-\u037D\u037F-\u1FFF\u200C-\u200D\u2070-\u218F\u2C00-\u2FEF\u3001-\uD7FF\uF900-\uFDCF\uFDF0-\uFFFD]/; //\u10000-\uEFFFF
-
-  var nameChar = new RegExp("[\\-\\.0-9" + nameStartChar.source.slice(1, -1) + "\\u00B7\\u0300-\\u036F\\u203F-\\u2040]");
-  var tagNamePattern = new RegExp('^' + nameStartChar.source + nameChar.source + '*(?:\:' + nameStartChar.source + nameChar.source + '*)?$'); //var tagNamePattern = /^[a-zA-Z_][\w\-\.]*(?:\:[a-zA-Z_][\w\-\.]*)?$/
-  //var handlers = 'resolveEntity,getExternalSubset,characters,endDocument,endElement,endPrefixMapping,ignorableWhitespace,processingInstruction,setDocumentLocator,skippedEntity,startDocument,startElement,startPrefixMapping,notationDecl,unparsedEntityDecl,error,fatalError,warning,attributeDecl,elementDecl,externalEntityDecl,internalEntityDecl,comment,endCDATA,endDTD,endEntity,startCDATA,startDTD,startEntity'.split(',')
-  //S_TAG,	S_ATTR,	S_EQ,	S_ATTR_NOQUOT_VALUE
-  //S_ATTR_SPACE,	S_ATTR_END,	S_TAG_SPACE, S_TAG_CLOSE
-
-  var S_TAG = 0; //tag name offerring
-
-  var S_ATTR = 1; //attr name offerring 
-
-  var S_ATTR_SPACE = 2; //attr name end and space offer
-
-  var S_EQ = 3; //=space?
-
-  var S_ATTR_NOQUOT_VALUE = 4; //attr value(no quot value only)
-
-  var S_ATTR_END = 5; //attr value end and no space(quot end)
-
-  var S_TAG_SPACE = 6; //(attr value end || tag end ) && (space offer)
-
-  var S_TAG_CLOSE = 7; //closed el<el />
-
-  /**
-   * Creates an error that will not be caught by XMLReader aka the SAX parser.
-   *
-   * @param {string} message
-   * @param {any?} locator Optional, can provide details about the location in the source
-   * @constructor
-   */
-
-  function ParseError$1(message, locator) {
-    this.message = message;
-    this.locator = locator;
-    if (Error.captureStackTrace) Error.captureStackTrace(this, ParseError$1);
-  }
-
-  ParseError$1.prototype = new Error();
-  ParseError$1.prototype.name = ParseError$1.name;
-
-  function XMLReader$1() {}
-
-  XMLReader$1.prototype = {
-    parse: function parse(source, defaultNSMap, entityMap) {
-      var domBuilder = this.domBuilder;
-      domBuilder.startDocument();
-
-      _copy(defaultNSMap, defaultNSMap = {});
-
-      _parse(source, defaultNSMap, entityMap, domBuilder, this.errorHandler);
-
-      domBuilder.endDocument();
-    }
-  };
-
-  function _parse(source, defaultNSMapCopy, entityMap, domBuilder, errorHandler) {
-    function fixedFromCharCode(code) {
-      // String.prototype.fromCharCode does not supports
-      // > 2 bytes unicode chars directly
-      if (code > 0xffff) {
-        code -= 0x10000;
-        var surrogate1 = 0xd800 + (code >> 10),
-            surrogate2 = 0xdc00 + (code & 0x3ff);
-        return String.fromCharCode(surrogate1, surrogate2);
-      } else {
-        return String.fromCharCode(code);
-      }
     }
 
-    function entityReplacer(a) {
-      var k = a.slice(1, -1);
-
-      if (k in entityMap) {
-        return entityMap[k];
-      } else if (k.charAt(0) === '#') {
-        return fixedFromCharCode(parseInt(k.substr(1).replace('x', '0x')));
-      } else {
-        errorHandler.error('entity not found:' + a);
-        return a;
-      }
-    }
-
-    function appendText(end) {
-      //has some bugs
-      if (end > start) {
-        var xt = source.substring(start, end).replace(/&#?\w+;/g, entityReplacer);
-        locator && position(start);
-        domBuilder.characters(xt, 0, end - start);
-        start = end;
-      }
-    }
-
-    function position(p, m) {
-      while (p >= lineEnd && (m = linePattern.exec(source))) {
-        lineStart = m.index;
-        lineEnd = lineStart + m[0].length;
-        locator.lineNumber++; //console.log('line++:',locator,startPos,endPos)
-      }
-
-      locator.columnNumber = p - lineStart + 1;
-    }
-
-    var lineStart = 0;
-    var lineEnd = 0;
-    var linePattern = /.*(?:\r\n?|\n)|.*$/g;
-    var locator = domBuilder.locator;
-    var parseStack = [{
-      currentNSMap: defaultNSMapCopy
-    }];
-    var closeMap = {};
-    var start = 0;
-
-    while (true) {
-      try {
-        var tagStart = source.indexOf('<', start);
-
-        if (tagStart < 0) {
-          if (!source.substr(start).match(/^\s*$/)) {
-            var doc = domBuilder.doc;
-            var text = doc.createTextNode(source.substr(start));
-            doc.appendChild(text);
-            domBuilder.currentElement = text;
-          }
-
-          return;
-        }
-
-        if (tagStart > start) {
-          appendText(tagStart);
-        }
-
-        switch (source.charAt(tagStart + 1)) {
-          case '/':
-            var end = source.indexOf('>', tagStart + 3);
-            var tagName = source.substring(tagStart + 2, end).replace(/[ \t\n\r]+$/g, '');
-            var config = parseStack.pop();
-
-            if (end < 0) {
-              tagName = source.substring(tagStart + 2).replace(/[\s<].*/, '');
-              errorHandler.error("end tag name: " + tagName + ' is not complete:' + config.tagName);
-              end = tagStart + 1 + tagName.length;
-            } else if (tagName.match(/\s</)) {
-              tagName = tagName.replace(/[\s<].*/, '');
-              errorHandler.error("end tag name: " + tagName + ' maybe not complete');
-              end = tagStart + 1 + tagName.length;
-            }
-
-            var localNSMap = config.localNSMap;
-            var endMatch = config.tagName == tagName;
-            var endIgnoreCaseMach = endMatch || config.tagName && config.tagName.toLowerCase() == tagName.toLowerCase();
-
-            if (endIgnoreCaseMach) {
-              domBuilder.endElement(config.uri, config.localName, tagName);
-
-              if (localNSMap) {
-                for (var prefix in localNSMap) {
-                  domBuilder.endPrefixMapping(prefix);
-                }
-              }
-
-              if (!endMatch) {
-                errorHandler.fatalError("end tag name: " + tagName + ' is not match the current start tagName:' + config.tagName); // No known test case
-              }
-            } else {
-              parseStack.push(config);
-            }
-
-            end++;
-            break;
-          // end elment
-
-          case '?':
-            // <?...?>
-            locator && position(tagStart);
-            end = parseInstruction(source, tagStart, domBuilder);
-            break;
-
-          case '!':
-            // <!doctype,<![CDATA,<!--
-            locator && position(tagStart);
-            end = parseDCC(source, tagStart, domBuilder, errorHandler);
-            break;
-
-          default:
-            locator && position(tagStart);
-            var el = new ElementAttributes();
-            var currentNSMap = parseStack[parseStack.length - 1].currentNSMap; //elStartEnd
-
-            var end = parseElementStartPart(source, tagStart, el, currentNSMap, entityReplacer, errorHandler);
-            var len = el.length;
-
-            if (!el.closed && fixSelfClosed(source, end, el.tagName, closeMap)) {
-              el.closed = true;
-
-              if (!entityMap.nbsp) {
-                errorHandler.warning('unclosed xml attribute');
-              }
-            }
-
-            if (locator && len) {
-              var locator2 = copyLocator(locator, {}); //try{//attribute position fixed
-
-              for (var i = 0; i < len; i++) {
-                var a = el[i];
-                position(a.offset);
-                a.locator = copyLocator(locator, {});
-              }
-
-              domBuilder.locator = locator2;
-
-              if (appendElement$1(el, domBuilder, currentNSMap)) {
-                parseStack.push(el);
-              }
-
-              domBuilder.locator = locator;
-            } else {
-              if (appendElement$1(el, domBuilder, currentNSMap)) {
-                parseStack.push(el);
-              }
-            }
-
-            if (NAMESPACE$1.isHTML(el.uri) && !el.closed) {
-              end = parseHtmlSpecialContent(source, end, el.tagName, entityReplacer, domBuilder);
-            } else {
-              end++;
-            }
-
-        }
-      } catch (e) {
-        if (e instanceof ParseError$1) {
-          throw e;
-        }
-
-        errorHandler.error('element parse error: ' + e);
-        end = -1;
-      }
-
-      if (end > start) {
-        start = end;
-      } else {
-        //TODO: 这里有可能sax回退，有位置错误风险
-        appendText(Math.max(tagStart, start) + 1);
-      }
-    }
-  }
-
-  function copyLocator(f, t) {
-    t.lineNumber = f.lineNumber;
-    t.columnNumber = f.columnNumber;
-    return t;
-  }
-  /**
-   * @see #appendElement(source,elStartEnd,el,selfClosed,entityReplacer,domBuilder,parseStack);
-   * @return end of the elementStartPart(end of elementEndPart for selfClosed el)
-   */
-
-
-  function parseElementStartPart(source, start, el, currentNSMap, entityReplacer, errorHandler) {
-    /**
-     * @param {string} qname
-     * @param {string} value
-     * @param {number} startIndex
-     */
-    function addAttribute(qname, value, startIndex) {
-      if (el.attributeNames.hasOwnProperty(qname)) {
-        errorHandler.fatalError('Attribute ' + qname + ' redefined');
-      }
-
-      el.addValue(qname, value, startIndex);
-    }
-
-    var attrName;
-    var value;
-    var p = ++start;
-    var s = S_TAG; //status
-
-    while (true) {
-      var c = source.charAt(p);
-
-      switch (c) {
-        case '=':
-          if (s === S_ATTR) {
-            //attrName
-            attrName = source.slice(start, p);
-            s = S_EQ;
-          } else if (s === S_ATTR_SPACE) {
-            s = S_EQ;
-          } else {
-            //fatalError: equal must after attrName or space after attrName
-            throw new Error('attribute equal must after attrName'); // No known test case
-          }
-
-          break;
-
-        case '\'':
-        case '"':
-          if (s === S_EQ || s === S_ATTR //|| s == S_ATTR_SPACE
-          ) {
-              //equal
-              if (s === S_ATTR) {
-                errorHandler.warning('attribute value must after "="');
-                attrName = source.slice(start, p);
-              }
-
-              start = p + 1;
-              p = source.indexOf(c, start);
-
-              if (p > 0) {
-                value = source.slice(start, p).replace(/&#?\w+;/g, entityReplacer);
-                addAttribute(attrName, value, start - 1);
-                s = S_ATTR_END;
-              } else {
-                //fatalError: no end quot match
-                throw new Error('attribute value no end \'' + c + '\' match');
-              }
-            } else if (s == S_ATTR_NOQUOT_VALUE) {
-            value = source.slice(start, p).replace(/&#?\w+;/g, entityReplacer); //console.log(attrName,value,start,p)
-
-            addAttribute(attrName, value, start); //console.dir(el)
-
-            errorHandler.warning('attribute "' + attrName + '" missed start quot(' + c + ')!!');
-            start = p + 1;
-            s = S_ATTR_END;
-          } else {
-            //fatalError: no equal before
-            throw new Error('attribute value must after "="'); // No known test case
-          }
-
-          break;
-
-        case '/':
-          switch (s) {
-            case S_TAG:
-              el.setTagName(source.slice(start, p));
-
-            case S_ATTR_END:
-            case S_TAG_SPACE:
-            case S_TAG_CLOSE:
-              s = S_TAG_CLOSE;
-              el.closed = true;
-
-            case S_ATTR_NOQUOT_VALUE:
-            case S_ATTR:
-            case S_ATTR_SPACE:
-              break;
-            //case S_EQ:
-
-            default:
-              throw new Error("attribute invalid close char('/')");
-            // No known test case
-          }
-
-          break;
-
-        case '':
-          //end document
-          errorHandler.error('unexpected end of input');
-
-          if (s == S_TAG) {
-            el.setTagName(source.slice(start, p));
-          }
-
-          return p;
-
-        case '>':
-          switch (s) {
-            case S_TAG:
-              el.setTagName(source.slice(start, p));
-
-            case S_ATTR_END:
-            case S_TAG_SPACE:
-            case S_TAG_CLOSE:
-              break;
-            //normal
-
-            case S_ATTR_NOQUOT_VALUE: //Compatible state
-
-            case S_ATTR:
-              value = source.slice(start, p);
-
-              if (value.slice(-1) === '/') {
-                el.closed = true;
-                value = value.slice(0, -1);
-              }
-
-            case S_ATTR_SPACE:
-              if (s === S_ATTR_SPACE) {
-                value = attrName;
-              }
-
-              if (s == S_ATTR_NOQUOT_VALUE) {
-                errorHandler.warning('attribute "' + value + '" missed quot(")!');
-                addAttribute(attrName, value.replace(/&#?\w+;/g, entityReplacer), start);
-              } else {
-                if (!NAMESPACE$1.isHTML(currentNSMap['']) || !value.match(/^(?:disabled|checked|selected)$/i)) {
-                  errorHandler.warning('attribute "' + value + '" missed value!! "' + value + '" instead!!');
-                }
-
-                addAttribute(value, value, start);
-              }
-
-              break;
-
-            case S_EQ:
-              throw new Error('attribute value missed!!');
-          } //			console.log(tagName,tagNamePattern,tagNamePattern.test(tagName))
-
-
-          return p;
-
-        /*xml space '\x20' | #x9 | #xD | #xA; */
-
-        case "\x80":
-          c = ' ';
-
-        default:
-          if (c <= ' ') {
-            //space
-            switch (s) {
-              case S_TAG:
-                el.setTagName(source.slice(start, p)); //tagName
-
-                s = S_TAG_SPACE;
-                break;
-
-              case S_ATTR:
-                attrName = source.slice(start, p);
-                s = S_ATTR_SPACE;
-                break;
-
-              case S_ATTR_NOQUOT_VALUE:
-                var value = source.slice(start, p).replace(/&#?\w+;/g, entityReplacer);
-                errorHandler.warning('attribute "' + value + '" missed quot(")!!');
-                addAttribute(attrName, value, start);
-
-              case S_ATTR_END:
-                s = S_TAG_SPACE;
-                break;
-              //case S_TAG_SPACE:
-              //case S_EQ:
-              //case S_ATTR_SPACE:
-              //	void();break;
-              //case S_TAG_CLOSE:
-              //ignore warning
-            }
-          } else {
-            //not space
-            //S_TAG,	S_ATTR,	S_EQ,	S_ATTR_NOQUOT_VALUE
-            //S_ATTR_SPACE,	S_ATTR_END,	S_TAG_SPACE, S_TAG_CLOSE
-            switch (s) {
-              //case S_TAG:void();break;
-              //case S_ATTR:void();break;
-              //case S_ATTR_NOQUOT_VALUE:void();break;
-              case S_ATTR_SPACE:
-                el.tagName;
-
-                if (!NAMESPACE$1.isHTML(currentNSMap['']) || !attrName.match(/^(?:disabled|checked|selected)$/i)) {
-                  errorHandler.warning('attribute "' + attrName + '" missed value!! "' + attrName + '" instead2!!');
-                }
-
-                addAttribute(attrName, attrName, start);
-                start = p;
-                s = S_ATTR;
-                break;
-
-              case S_ATTR_END:
-                errorHandler.warning('attribute space is required"' + attrName + '"!!');
-
-              case S_TAG_SPACE:
-                s = S_ATTR;
-                start = p;
-                break;
-
-              case S_EQ:
-                s = S_ATTR_NOQUOT_VALUE;
-                start = p;
-                break;
-
-              case S_TAG_CLOSE:
-                throw new Error("elements closed character '/' and '>' must be connected to");
-            }
-          }
-
-      } //end outer switch
-      //console.log('p++',p)
-
-
-      p++;
-    }
-  }
-  /**
-   * @return true if has new namespace define
-   */
-
-
-  function appendElement$1(el, domBuilder, currentNSMap) {
-    var tagName = el.tagName;
-    var localNSMap = null; //var currentNSMap = parseStack[parseStack.length-1].currentNSMap;
-
-    var i = el.length;
-
-    while (i--) {
-      var a = el[i];
-      var qName = a.qName;
-      var value = a.value;
-      var nsp = qName.indexOf(':');
-
-      if (nsp > 0) {
-        var prefix = a.prefix = qName.slice(0, nsp);
-        var localName = qName.slice(nsp + 1);
-        var nsPrefix = prefix === 'xmlns' && localName;
-      } else {
-        localName = qName;
-        prefix = null;
-        nsPrefix = qName === 'xmlns' && '';
-      } //can not set prefix,because prefix !== ''
-
-
-      a.localName = localName; //prefix == null for no ns prefix attribute 
-
-      if (nsPrefix !== false) {
-        //hack!!
-        if (localNSMap == null) {
-          localNSMap = {}; //console.log(currentNSMap,0)
-
-          _copy(currentNSMap, currentNSMap = {}); //console.log(currentNSMap,1)
-
-        }
-
-        currentNSMap[nsPrefix] = localNSMap[nsPrefix] = value;
-        a.uri = NAMESPACE$1.XMLNS;
-        domBuilder.startPrefixMapping(nsPrefix, value);
-      }
-    }
-
-    var i = el.length;
-
-    while (i--) {
-      a = el[i];
-      var prefix = a.prefix;
-
-      if (prefix) {
-        //no prefix attribute has no namespace
-        if (prefix === 'xml') {
-          a.uri = NAMESPACE$1.XML;
-        }
-
-        if (prefix !== 'xmlns') {
-          a.uri = currentNSMap[prefix || '']; //{console.log('###'+a.qName,domBuilder.locator.systemId+'',currentNSMap,a.uri)}
-        }
-      }
-    }
-
-    var nsp = tagName.indexOf(':');
-
-    if (nsp > 0) {
-      prefix = el.prefix = tagName.slice(0, nsp);
-      localName = el.localName = tagName.slice(nsp + 1);
-    } else {
-      prefix = null; //important!!
-
-      localName = el.localName = tagName;
-    } //no prefix element has default namespace
-
-
-    var ns = el.uri = currentNSMap[prefix || ''];
-    domBuilder.startElement(ns, localName, tagName, el); //endPrefixMapping and startPrefixMapping have not any help for dom builder
-    //localNSMap = null
-
-    if (el.closed) {
-      domBuilder.endElement(ns, localName, tagName);
-
-      if (localNSMap) {
-        for (prefix in localNSMap) {
-          domBuilder.endPrefixMapping(prefix);
-        }
-      }
-    } else {
-      el.currentNSMap = currentNSMap;
-      el.localNSMap = localNSMap; //parseStack.push(el);
-
-      return true;
-    }
-  }
-
-  function parseHtmlSpecialContent(source, elStartEnd, tagName, entityReplacer, domBuilder) {
-    if (/^(?:script|textarea)$/i.test(tagName)) {
-      var elEndStart = source.indexOf('</' + tagName + '>', elStartEnd);
-      var text = source.substring(elStartEnd + 1, elEndStart);
-
-      if (/[&<]/.test(text)) {
-        if (/^script$/i.test(tagName)) {
-          //if(!/\]\]>/.test(text)){
-          //lexHandler.startCDATA();
-          domBuilder.characters(text, 0, text.length); //lexHandler.endCDATA();
-
-          return elEndStart; //}
-        } //}else{//text area
-
-
-        text = text.replace(/&#?\w+;/g, entityReplacer);
-        domBuilder.characters(text, 0, text.length);
-        return elEndStart; //}
-      }
-    }
-
-    return elStartEnd + 1;
-  }
-
-  function fixSelfClosed(source, elStartEnd, tagName, closeMap) {
-    //if(tagName in closeMap){
-    var pos = closeMap[tagName];
-
-    if (pos == null) {
-      //console.log(tagName)
-      pos = source.lastIndexOf('</' + tagName + '>');
-
-      if (pos < elStartEnd) {
-        //忘记闭合
-        pos = source.lastIndexOf('</' + tagName);
-      }
-
-      closeMap[tagName] = pos;
-    }
-
-    return pos < elStartEnd; //} 
-  }
-
-  function _copy(source, target) {
-    for (var n in source) {
-      target[n] = source[n];
-    }
-  }
-
-  function parseDCC(source, start, domBuilder, errorHandler) {
-    //sure start with '<!'
-    var next = source.charAt(start + 2);
-
-    switch (next) {
-      case '-':
-        if (source.charAt(start + 3) === '-') {
-          var end = source.indexOf('-->', start + 4); //append comment source.substring(4,end)//<!--
-
-          if (end > start) {
-            domBuilder.comment(source, start + 4, end - start - 4);
-            return end + 3;
-          } else {
-            errorHandler.error("Unclosed comment");
-            return -1;
-          }
-        } else {
-          //error
-          return -1;
-        }
-
-      default:
-        if (source.substr(start + 3, 6) == 'CDATA[') {
-          var end = source.indexOf(']]>', start + 9);
-          domBuilder.startCDATA();
-          domBuilder.characters(source, start + 9, end - start - 9);
-          domBuilder.endCDATA();
-          return end + 3;
-        } //<!DOCTYPE
-        //startDTD(java.lang.String name, java.lang.String publicId, java.lang.String systemId) 
-
-
-        var matchs = split(source, start);
-        var len = matchs.length;
-
-        if (len > 1 && /!doctype/i.test(matchs[0][0])) {
-          var name = matchs[1][0];
-          var pubid = false;
-          var sysid = false;
-
-          if (len > 3) {
-            if (/^public$/i.test(matchs[2][0])) {
-              pubid = matchs[3][0];
-              sysid = len > 4 && matchs[4][0];
-            } else if (/^system$/i.test(matchs[2][0])) {
-              sysid = matchs[3][0];
-            }
-          }
-
-          var lastMatch = matchs[len - 1];
-          domBuilder.startDTD(name, pubid, sysid);
-          domBuilder.endDTD();
-          return lastMatch.index + lastMatch[0].length;
-        }
-
-    }
-
-    return -1;
-  }
-
-  function parseInstruction(source, start, domBuilder) {
-    var end = source.indexOf('?>', start);
-
-    if (end) {
-      var match = source.substring(start, end).match(/^<\?(\S*)\s*([\s\S]*?)\s*$/);
-
-      if (match) {
-        match[0].length;
-        domBuilder.processingInstruction(match[1], match[2]);
-        return end + 2;
-      } else {
-        //error
-        return -1;
-      }
-    }
-
-    return -1;
-  }
-
-  function ElementAttributes() {
-    this.attributeNames = {};
-  }
-
-  ElementAttributes.prototype = {
-    setTagName: function setTagName(tagName) {
-      if (!tagNamePattern.test(tagName)) {
-        throw new Error('invalid tagName:' + tagName);
-      }
-
-      this.tagName = tagName;
-    },
-    addValue: function addValue(qName, value, offset) {
-      if (!tagNamePattern.test(qName)) {
-        throw new Error('invalid attribute:' + qName);
-      }
-
-      this.attributeNames[qName] = this.length;
-      this[this.length++] = {
-        qName: qName,
-        value: value,
-        offset: offset
-      };
-    },
-    length: 0,
-    getLocalName: function getLocalName(i) {
-      return this[i].localName;
-    },
-    getLocator: function getLocator(i) {
-      return this[i].locator;
-    },
-    getQName: function getQName(i) {
-      return this[i].qName;
-    },
-    getURI: function getURI(i) {
-      return this[i].uri;
-    },
-    getValue: function getValue(i) {
-      return this[i].value;
-    } //	,getIndex:function(uri, localName)){
-    //		if(localName){
-    //			
-    //		}else{
-    //			var qName = uri
-    //		}
-    //	},
-    //	getValue:function(){return this.getValue(this.getIndex.apply(this,arguments))},
-    //	getType:function(uri,localName){}
-    //	getType:function(i){},
-
-  };
-
-  function split(source, start) {
-    var match;
-    var buf = [];
-    var reg = /'[^']+'|"[^"]+"|[^\s<>\/=]+=?|(\/?\s*>|<)/g;
-    reg.lastIndex = start;
-    reg.exec(source); //skip <
-
-    while (match = reg.exec(source)) {
-      buf.push(match);
-      if (match[1]) return buf;
-    }
-  }
-
-  var XMLReader_1 = XMLReader$1;
-  var ParseError_1 = ParseError$1;
-  var sax = {
-    XMLReader: XMLReader_1,
-    ParseError: ParseError_1
-  };
-
-  var DOMImplementation = dom.DOMImplementation;
-  var NAMESPACE = conventions.NAMESPACE;
-  var ParseError = sax.ParseError;
-  var XMLReader = sax.XMLReader;
-
-  function DOMParser$1(options) {
-    this.options = options || {
-      locator: {}
+    var regexs = {
+        // to determine mime types
+        mp4: /^(av0?1|avc0?[1234]|vp0?9|flac|opus|mp3|mp4a|mp4v|stpp.ttml.im1t)/,
+        webm: /^(vp0?[89]|av0?1|opus|vorbis)/,
+        ogg: /^(vp0?[89]|theora|flac|opus|vorbis)/,
+        // to determine if a codec is audio or video
+        video: /^(av0?1|avc0?[1234]|vp0?[89]|hvc1|hev1|theora|mp4v)/,
+        audio: /^(mp4a|flac|vorbis|opus|ac-[34]|ec-3|alac|mp3|speex|aac)/,
+        text: /^(stpp.ttml.im1t)/,
+        // mux.js support regex
+        muxerVideo: /^(avc0?1)/,
+        muxerAudio: /^(mp4a)/,
+        // match nothing as muxer does not support text right now.
+        // there cannot never be a character before the start of a string
+        // so this matches nothing.
+        muxerText: /a^/
     };
-  }
+    var mediaTypes = ['video', 'audio', 'text'];
+    var upperMediaTypes = ['Video', 'Audio', 'Text'];
+    /**
+     * Replace the old apple-style `avc1.<dd>.<dd>` codec string with the standard
+     * `avc1.<hhhhhh>`
+     *
+     * @param {string} codec
+     *        Codec string to translate
+     * @return {string}
+     *         The translated codec string
+     */
 
-  DOMParser$1.prototype.parseFromString = function (source, mimeType) {
-    var options = this.options;
-    var sax = new XMLReader();
-    var domBuilder = options.domBuilder || new DOMHandler(); //contentHandler and LexicalHandler
-
-    var errorHandler = options.errorHandler;
-    var locator = options.locator;
-    var defaultNSMap = options.xmlns || {};
-    var isHTML = /\/x?html?$/.test(mimeType); //mimeType.toLowerCase().indexOf('html') > -1;
-
-    var entityMap = isHTML ? entities.HTML_ENTITIES : entities.XML_ENTITIES;
-
-    if (locator) {
-      domBuilder.setDocumentLocator(locator);
-    }
-
-    sax.errorHandler = buildErrorHandler(errorHandler, domBuilder, locator);
-    sax.domBuilder = options.domBuilder || domBuilder;
-
-    if (isHTML) {
-      defaultNSMap[''] = NAMESPACE.HTML;
-    }
-
-    defaultNSMap.xml = defaultNSMap.xml || NAMESPACE.XML;
-
-    if (source && typeof source === 'string') {
-      sax.parse(source, defaultNSMap, entityMap);
-    } else {
-      sax.errorHandler.error("invalid doc source");
-    }
-
-    return domBuilder.doc;
-  };
-
-  function buildErrorHandler(errorImpl, domBuilder, locator) {
-    if (!errorImpl) {
-      if (domBuilder instanceof DOMHandler) {
-        return domBuilder;
-      }
-
-      errorImpl = domBuilder;
-    }
-
-    var errorHandler = {};
-    var isCallback = errorImpl instanceof Function;
-    locator = locator || {};
-
-    function build(key) {
-      var fn = errorImpl[key];
-
-      if (!fn && isCallback) {
-        fn = errorImpl.length == 2 ? function (msg) {
-          errorImpl(key, msg);
-        } : errorImpl;
-      }
-
-      errorHandler[key] = fn && function (msg) {
-        fn('[xmldom ' + key + ']\t' + msg + _locator(locator));
-      } || function () {};
-    }
-
-    build('warning');
-    build('error');
-    build('fatalError');
-    return errorHandler;
-  } //console.log('#\n\n\n\n\n\n\n####')
-
-  /**
-   * +ContentHandler+ErrorHandler
-   * +LexicalHandler+EntityResolver2
-   * -DeclHandler-DTDHandler
-   *
-   * DefaultHandler:EntityResolver, DTDHandler, ContentHandler, ErrorHandler
-   * DefaultHandler2:DefaultHandler,LexicalHandler, DeclHandler, EntityResolver2
-   * @link http://www.saxproject.org/apidoc/org/xml/sax/helpers/DefaultHandler.html
-   */
-
-
-  function DOMHandler() {
-    this.cdata = false;
-  }
-
-  function position(locator, node) {
-    node.lineNumber = locator.lineNumber;
-    node.columnNumber = locator.columnNumber;
-  }
-  /**
-   * @see org.xml.sax.ContentHandler#startDocument
-   * @link http://www.saxproject.org/apidoc/org/xml/sax/ContentHandler.html
-   */
-
-
-  DOMHandler.prototype = {
-    startDocument: function startDocument() {
-      this.doc = new DOMImplementation().createDocument(null, null, null);
-
-      if (this.locator) {
-        this.doc.documentURI = this.locator.systemId;
-      }
-    },
-    startElement: function startElement(namespaceURI, localName, qName, attrs) {
-      var doc = this.doc;
-      var el = doc.createElementNS(namespaceURI, qName || localName);
-      var len = attrs.length;
-      appendElement(this, el);
-      this.currentElement = el;
-      this.locator && position(this.locator, el);
-
-      for (var i = 0; i < len; i++) {
-        var namespaceURI = attrs.getURI(i);
-        var value = attrs.getValue(i);
-        var qName = attrs.getQName(i);
-        var attr = doc.createAttributeNS(namespaceURI, qName);
-        this.locator && position(attrs.getLocator(i), attr);
-        attr.value = attr.nodeValue = value;
-        el.setAttributeNode(attr);
-      }
-    },
-    endElement: function endElement(namespaceURI, localName, qName) {
-      var current = this.currentElement;
-      current.tagName;
-      this.currentElement = current.parentNode;
-    },
-    startPrefixMapping: function startPrefixMapping(prefix, uri) {},
-    endPrefixMapping: function endPrefixMapping(prefix) {},
-    processingInstruction: function processingInstruction(target, data) {
-      var ins = this.doc.createProcessingInstruction(target, data);
-      this.locator && position(this.locator, ins);
-      appendElement(this, ins);
-    },
-    ignorableWhitespace: function ignorableWhitespace(ch, start, length) {},
-    characters: function characters(chars, start, length) {
-      chars = _toString.apply(this, arguments); //console.log(chars)
-
-      if (chars) {
-        if (this.cdata) {
-          var charNode = this.doc.createCDATASection(chars);
-        } else {
-          var charNode = this.doc.createTextNode(chars);
+    var translateLegacyCodec = function translateLegacyCodec(codec) {
+        if (!codec) {
+            return codec;
         }
-
-        if (this.currentElement) {
-          this.currentElement.appendChild(charNode);
-        } else if (/^\s*$/.test(chars)) {
-          this.doc.appendChild(charNode); //process xml
-        }
-
-        this.locator && position(this.locator, charNode);
-      }
-    },
-    skippedEntity: function skippedEntity(name) {},
-    endDocument: function endDocument() {
-      this.doc.normalize();
-    },
-    setDocumentLocator: function setDocumentLocator(locator) {
-      if (this.locator = locator) {
-        // && !('lineNumber' in locator)){
-        locator.lineNumber = 0;
-      }
-    },
-    //LexicalHandler
-    comment: function comment(chars, start, length) {
-      chars = _toString.apply(this, arguments);
-      var comm = this.doc.createComment(chars);
-      this.locator && position(this.locator, comm);
-      appendElement(this, comm);
-    },
-    startCDATA: function startCDATA() {
-      //used in characters() methods
-      this.cdata = true;
-    },
-    endCDATA: function endCDATA() {
-      this.cdata = false;
-    },
-    startDTD: function startDTD(name, publicId, systemId) {
-      var impl = this.doc.implementation;
-
-      if (impl && impl.createDocumentType) {
-        var dt = impl.createDocumentType(name, publicId, systemId);
-        this.locator && position(this.locator, dt);
-        appendElement(this, dt);
-        this.doc.doctype = dt;
-      }
-    },
+        return codec.replace(/avc1\.(\d+)\.(\d+)/i, function (orig, profile, avcLevel) {
+            var profileHex = ('00' + Number(profile).toString(16)).slice(-2);
+            var avcLevelHex = ('00' + Number(avcLevel).toString(16)).slice(-2);
+            return 'avc1.' + profileHex + '00' + avcLevelHex;
+        });
+    };
+    /**
+     * @typedef {Object} ParsedCodecInfo
+     * @property {number} codecCount
+     *           Number of codecs parsed
+     * @property {string} [videoCodec]
+     *           Parsed video codec (if found)
+     * @property {string} [videoObjectTypeIndicator]
+     *           Video object type indicator (if found)
+     * @property {string|null} audioProfile
+     *           Audio profile
+     */
 
     /**
-     * @see org.xml.sax.ErrorHandler
-     * @link http://www.saxproject.org/apidoc/org/xml/sax/ErrorHandler.html
+     * Parses a codec string to retrieve the number of codecs specified, the video codec and
+     * object type indicator, and the audio profile.
+     *
+     * @param {string} [codecString]
+     *        The codec string to parse
+     * @return {ParsedCodecInfo}
+     *         Parsed codec info
      */
-    warning: function warning(error) {
-      console.warn('[xmldom warning]\t' + error, _locator(this.locator));
-    },
-    error: function error(_error) {
-      console.error('[xmldom error]\t' + _error, _locator(this.locator));
-    },
-    fatalError: function fatalError(error) {
-      throw new ParseError(error, this.locator);
-    }
-  };
 
-  function _locator(l) {
-    if (l) {
-      return '\n@' + (l.systemId || '') + '#[line:' + l.lineNumber + ',col:' + l.columnNumber + ']';
-    }
-  }
+    var parseCodecs = function parseCodecs(codecString) {
+        if (codecString === void 0) {
+            codecString = '';
+        }
+        var codecs = codecString.split(',');
+        var result = [];
+        codecs.forEach(function (codec) {
+            codec = codec.trim();
+            var codecType;
+            mediaTypes.forEach(function (name) {
+                var match = regexs[name].exec(codec.toLowerCase());
+                if (!match || match.length <= 1) {
+                    return;
+                }
+                codecType = name; // maintain codec case
 
-  function _toString(chars, start, length) {
-    if (typeof chars == 'string') {
-      return chars.substr(start, length);
-    } else {
-      //java sax connect width xmldom on rhino(what about: "? && !(chars instanceof String)")
-      if (chars.length >= start + length || start) {
-        return new java.lang.String(chars, start, length) + '';
-      }
+                var type = codec.substring(0, match[1].length);
+                var details = codec.replace(type, '');
+                result.push({
+                    type: type,
+                    details: details,
+                    mediaType: name
+                });
+            });
+            if (!codecType) {
+                result.push({
+                    type: codec,
+                    details: '',
+                    mediaType: 'unknown'
+                });
+            }
+        });
+        return result;
+    };
+    /**
+     * Returns a ParsedCodecInfo object for the default alternate audio playlist if there is
+     * a default alternate audio playlist for the provided audio group.
+     *
+     * @param {Object} master
+     *        The master playlist
+     * @param {string} audioGroupId
+     *        ID of the audio group for which to find the default codec info
+     * @return {ParsedCodecInfo}
+     *         Parsed codec info
+     */
 
-      return chars;
+    var codecsFromDefault = function codecsFromDefault(master, audioGroupId) {
+        if (!master.mediaGroups.AUDIO || !audioGroupId) {
+            return null;
+        }
+        var audioGroup = master.mediaGroups.AUDIO[audioGroupId];
+        if (!audioGroup) {
+            return null;
+        }
+        for (var name in audioGroup) {
+            var audioType = audioGroup[name];
+            if (audioType.default && audioType.playlists) {
+                // codec should be the same for all playlists within the audio type
+                return parseCodecs(audioType.playlists[0].attributes.CODECS);
+            }
+        }
+        return null;
+    };
+    var isAudioCodec = function isAudioCodec(codec) {
+        if (codec === void 0) {
+            codec = '';
+        }
+        return regexs.audio.test(codec.trim().toLowerCase());
+    };
+    var isTextCodec = function isTextCodec(codec) {
+        if (codec === void 0) {
+            codec = '';
+        }
+        return regexs.text.test(codec.trim().toLowerCase());
+    };
+    var getMimeForCodec = function getMimeForCodec(codecString) {
+        if (!codecString || typeof codecString !== 'string') {
+            return;
+        }
+        var codecs = codecString.toLowerCase().split(',').map(function (c) {
+            return translateLegacyCodec(c.trim());
+        }); // default to video type
+
+        var type = 'video'; // only change to audio type if the only codec we have is
+        // audio
+
+        if (codecs.length === 1 && isAudioCodec(codecs[0])) {
+            type = 'audio';
+        } else if (codecs.length === 1 && isTextCodec(codecs[0])) {
+            // text uses application/<container> for now
+            type = 'application';
+        } // default the container to mp4
+
+        var container = 'mp4'; // every codec must be able to go into the container
+        // for that container to be the correct one
+
+        if (codecs.every(function (c) {
+            return regexs.mp4.test(c);
+        })) {
+            container = 'mp4';
+        } else if (codecs.every(function (c) {
+            return regexs.webm.test(c);
+        })) {
+            container = 'webm';
+        } else if (codecs.every(function (c) {
+            return regexs.ogg.test(c);
+        })) {
+            container = 'ogg';
+        }
+        return type + "/" + container + ";codecs=\"" + codecString + "\"";
+    };
+    var browserSupportsCodec = function browserSupportsCodec(codecString) {
+        if (codecString === void 0) {
+            codecString = '';
+        }
+        return window.MediaSource && window.MediaSource.isTypeSupported && window.MediaSource.isTypeSupported(getMimeForCodec(codecString)) || false;
+    };
+    var muxerSupportsCodec = function muxerSupportsCodec(codecString) {
+        if (codecString === void 0) {
+            codecString = '';
+        }
+        return codecString.toLowerCase().split(',').every(function (codec) {
+            codec = codec.trim(); // any match is supported.
+
+            for (var i = 0; i < upperMediaTypes.length; i++) {
+                var type = upperMediaTypes[i];
+                if (regexs["muxer" + type].test(codec)) {
+                    return true;
+                }
+            }
+            return false;
+        });
+    };
+    var DEFAULT_AUDIO_CODEC = 'mp4a.40.2';
+    var DEFAULT_VIDEO_CODEC = 'avc1.4d400d';
+
+    var MPEGURL_REGEX = /^(audio|video|application)\/(x-|vnd\.apple\.)?mpegurl/i;
+    var DASH_REGEX = /^application\/dash\+xml/i;
+    /**
+     * Returns a string that describes the type of source based on a video source object's
+     * media type.
+     *
+     * @see {@link https://dev.w3.org/html5/pf-summary/video.html#dom-source-type|Source Type}
+     *
+     * @param {string} type
+     *        Video source object media type
+     * @return {('hls'|'dash'|'vhs-json'|null)}
+     *         VHS source type string
+     */
+
+    var simpleTypeFromSourceType = function simpleTypeFromSourceType(type) {
+        if (MPEGURL_REGEX.test(type)) {
+            return 'hls';
+        }
+        if (DASH_REGEX.test(type)) {
+            return 'dash';
+        } // Denotes the special case of a manifest object passed to http-streaming instead of a
+        // source URL.
+        //
+        // See https://en.wikipedia.org/wiki/Media_type for details on specifying media types.
+        //
+        // In this case, vnd stands for vendor, video.js for the organization, VHS for this
+        // project, and the +json suffix identifies the structure of the media type.
+
+        if (type === 'application/vnd.videojs.vhs+json') {
+            return 'vhs-json';
+        }
+        return null;
+    };
+
+    // const log2 = Math.log2 ? Math.log2 : (x) => (Math.log(x) / Math.log(2));
+    // we used to do this with log2 but BigInt does not support builtin math
+    // Math.ceil(log2(x));
+
+    var countBits = function countBits(x) {
+        return x.toString(2).length;
+    }; // count the number of whole bytes it would take to represent a number
+
+    var countBytes = function countBytes(x) {
+        return Math.ceil(countBits(x) / 8);
+    };
+    var isArrayBufferView = function isArrayBufferView(obj) {
+        if (ArrayBuffer.isView === 'function') {
+            return ArrayBuffer.isView(obj);
+        }
+        return obj && obj.buffer instanceof ArrayBuffer;
+    };
+    var isTypedArray = function isTypedArray(obj) {
+        return isArrayBufferView(obj);
+    };
+    var toUint8 = function toUint8(bytes) {
+        if (bytes instanceof Uint8Array) {
+            return bytes;
+        }
+        if (!Array.isArray(bytes) && !isTypedArray(bytes) && !(bytes instanceof ArrayBuffer)) {
+            // any non-number or NaN leads to empty uint8array
+            // eslint-disable-next-line
+            if (typeof bytes !== 'number' || typeof bytes === 'number' && bytes !== bytes) {
+                bytes = 0;
+            } else {
+                bytes = [bytes];
+            }
+        }
+        return new Uint8Array(bytes && bytes.buffer || bytes, bytes && bytes.byteOffset || 0, bytes && bytes.byteLength || 0);
+    };
+    var BigInt = window.BigInt || Number;
+    var BYTE_TABLE = [BigInt('0x1'), BigInt('0x100'), BigInt('0x10000'), BigInt('0x1000000'), BigInt('0x100000000'), BigInt('0x10000000000'), BigInt('0x1000000000000'), BigInt('0x100000000000000'), BigInt('0x10000000000000000')];
+    (function () {
+        var a = new Uint16Array([0xFFCC]);
+        var b = new Uint8Array(a.buffer, a.byteOffset, a.byteLength);
+        if (b[0] === 0xFF) {
+            return 'big';
+        }
+        if (b[0] === 0xCC) {
+            return 'little';
+        }
+        return 'unknown';
+    })();
+    var bytesToNumber = function bytesToNumber(bytes, _temp) {
+        var _ref = _temp === void 0 ? {} : _temp,
+            _ref$signed = _ref.signed,
+            signed = _ref$signed === void 0 ? false : _ref$signed,
+            _ref$le = _ref.le,
+            le = _ref$le === void 0 ? false : _ref$le;
+        bytes = toUint8(bytes);
+        var fn = le ? 'reduce' : 'reduceRight';
+        var obj = bytes[fn] ? bytes[fn] : Array.prototype[fn];
+        var number = obj.call(bytes, function (total, byte, i) {
+            var exponent = le ? i : Math.abs(i + 1 - bytes.length);
+            return total + BigInt(byte) * BYTE_TABLE[exponent];
+        }, BigInt(0));
+        if (signed) {
+            var max = BYTE_TABLE[bytes.length] / BigInt(2) - BigInt(1);
+            number = BigInt(number);
+            if (number > max) {
+                number -= max;
+                number -= max;
+                number -= BigInt(2);
+            }
+        }
+        return Number(number);
+    };
+    var numberToBytes = function numberToBytes(number, _temp2) {
+        var _ref2 = _temp2 === void 0 ? {} : _temp2,
+            _ref2$le = _ref2.le,
+            le = _ref2$le === void 0 ? false : _ref2$le;
+
+        // eslint-disable-next-line
+        if (typeof number !== 'bigint' && typeof number !== 'number' || typeof number === 'number' && number !== number) {
+            number = 0;
+        }
+        number = BigInt(number);
+        var byteCount = countBytes(number);
+        var bytes = new Uint8Array(new ArrayBuffer(byteCount));
+        for (var i = 0; i < byteCount; i++) {
+            var byteIndex = le ? i : Math.abs(i + 1 - bytes.length);
+            bytes[byteIndex] = Number(number / BYTE_TABLE[i] & BigInt(0xFF));
+            if (number < 0) {
+                bytes[byteIndex] = Math.abs(~bytes[byteIndex]);
+                bytes[byteIndex] -= i === 0 ? 1 : 2;
+            }
+        }
+        return bytes;
+    };
+    var stringToBytes = function stringToBytes(string, stringIsBytes) {
+        if (typeof string !== 'string' && string && typeof string.toString === 'function') {
+            string = string.toString();
+        }
+        if (typeof string !== 'string') {
+            return new Uint8Array();
+        } // If the string already is bytes, we don't have to do this
+        // otherwise we do this so that we split multi length characters
+        // into individual bytes
+
+        if (!stringIsBytes) {
+            string = unescape(encodeURIComponent(string));
+        }
+        var view = new Uint8Array(string.length);
+        for (var i = 0; i < string.length; i++) {
+            view[i] = string.charCodeAt(i);
+        }
+        return view;
+    };
+    var concatTypedArrays = function concatTypedArrays() {
+        for (var _len = arguments.length, buffers = new Array(_len), _key = 0; _key < _len; _key++) {
+            buffers[_key] = arguments[_key];
+        }
+        buffers = buffers.filter(function (b) {
+            return b && (b.byteLength || b.length) && typeof b !== 'string';
+        });
+        if (buffers.length <= 1) {
+            // for 0 length we will return empty uint8
+            // for 1 length we return the first uint8
+            return toUint8(buffers[0]);
+        }
+        var totalLen = buffers.reduce(function (total, buf, i) {
+            return total + (buf.byteLength || buf.length);
+        }, 0);
+        var tempBuffer = new Uint8Array(totalLen);
+        var offset = 0;
+        buffers.forEach(function (buf) {
+            buf = toUint8(buf);
+            tempBuffer.set(buf, offset);
+            offset += buf.byteLength;
+        });
+        return tempBuffer;
+    };
+    /**
+     * Check if the bytes "b" are contained within bytes "a".
+     *
+     * @param {Uint8Array|Array} a
+     *        Bytes to check in
+     *
+     * @param {Uint8Array|Array} b
+     *        Bytes to check for
+     *
+     * @param {Object} options
+     *        options
+     *
+     * @param {Array|Uint8Array} [offset=0]
+     *        offset to use when looking at bytes in a
+     *
+     * @param {Array|Uint8Array} [mask=[]]
+     *        mask to use on bytes before comparison.
+     *
+     * @return {boolean}
+     *         If all bytes in b are inside of a, taking into account
+     *         bit masks.
+     */
+
+    var bytesMatch = function bytesMatch(a, b, _temp3) {
+        var _ref3 = _temp3 === void 0 ? {} : _temp3,
+            _ref3$offset = _ref3.offset,
+            offset = _ref3$offset === void 0 ? 0 : _ref3$offset,
+            _ref3$mask = _ref3.mask,
+            mask = _ref3$mask === void 0 ? [] : _ref3$mask;
+        a = toUint8(a);
+        b = toUint8(b); // ie 11 does not support uint8 every
+
+        var fn = b.every ? b.every : Array.prototype.every;
+        return b.length && a.length - offset >= b.length &&
+            // ie 11 doesn't support every on uin8
+            fn.call(b, function (bByte, i) {
+                var aByte = mask[i] ? mask[i] & a[offset + i] : a[offset + i];
+                return bByte === aByte;
+            });
+    };
+
+    var DEFAULT_LOCATION = 'http://example.com';
+    var resolveUrl$1 = function resolveUrl(baseUrl, relativeUrl) {
+        // return early if we don't need to resolve
+        if (/^[a-z]+:/i.test(relativeUrl)) {
+            return relativeUrl;
+        } // if baseUrl is a data URI, ignore it and resolve everything relative to window.location
+
+        if (/^data:/.test(baseUrl)) {
+            baseUrl = window.location && window.location.href || '';
+        } // IE11 supports URL but not the URL constructor
+        // feature detect the behavior we want
+
+        var nativeURL = typeof window.URL === 'function';
+        var protocolLess = /^\/\//.test(baseUrl); // remove location if window.location isn't available (i.e. we're in node)
+        // and if baseUrl isn't an absolute url
+
+        var removeLocation = !window.location && !/\/\//i.test(baseUrl); // if the base URL is relative then combine with the current location
+
+        if (nativeURL) {
+            baseUrl = new window.URL(baseUrl, window.location || DEFAULT_LOCATION);
+        } else if (!/\/\//i.test(baseUrl)) {
+            baseUrl = urlToolkit.buildAbsoluteURL(window.location && window.location.href || '', baseUrl);
+        }
+        if (nativeURL) {
+            var newUrl = new URL(relativeUrl, baseUrl); // if we're a protocol-less url, remove the protocol
+            // and if we're location-less, remove the location
+            // otherwise, return the url unmodified
+
+            if (removeLocation) {
+                return newUrl.href.slice(DEFAULT_LOCATION.length);
+            } else if (protocolLess) {
+                return newUrl.href.slice(newUrl.protocol.length);
+            }
+            return newUrl.href;
+        }
+        return urlToolkit.buildAbsoluteURL(baseUrl, relativeUrl);
+    };
+
+    /**
+     * Loops through all supported media groups in master and calls the provided
+     * callback for each group
+     *
+     * @param {Object} master
+     *        The parsed master manifest object
+     * @param {string[]} groups
+     *        The media groups to call the callback for
+     * @param {Function} callback
+     *        Callback to call for each media group
+     */
+    var forEachMediaGroup$1 = function forEachMediaGroup(master, groups, callback) {
+        groups.forEach(function (mediaType) {
+            for (var groupKey in master.mediaGroups[mediaType]) {
+                for (var labelKey in master.mediaGroups[mediaType][groupKey]) {
+                    var mediaProperties = master.mediaGroups[mediaType][groupKey][labelKey];
+                    callback(mediaProperties, mediaType, groupKey, labelKey);
+                }
+            }
+        });
+    };
+
+    var atob = function atob(s) {
+        return window.atob ? window.atob(s) : Buffer.from(s, 'base64').toString('binary');
+    };
+    function decodeB64ToUint8Array(b64Text) {
+        var decodedString = atob(b64Text);
+        var array = new Uint8Array(decodedString.length);
+        for (var i = 0; i < decodedString.length; i++) {
+            array[i] = decodedString.charCodeAt(i);
+        }
+        return array;
     }
-  }
-  /*
+
+    /**
+     * Ponyfill for `Array.prototype.find` which is only available in ES6 runtimes.
+     *
+     * Works with anything that has a `length` property and index access properties, including NodeList.
+     *
+     * @template {unknown} T
+     * @param {Array<T> | ({length:number, [number]: T})} list
+     * @param {function (item: T, index: number, list:Array<T> | ({length:number, [number]: T})):boolean} predicate
+     * @param {Partial<Pick<ArrayConstructor['prototype'], 'find'>>?} ac `Array.prototype` by default,
+     * 				allows injecting a custom implementation in tests
+     * @returns {T | undefined}
+     *
+     * @see https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/find
+     * @see https://tc39.es/ecma262/multipage/indexed-collections.html#sec-array.prototype.find
+     */
+    function find$1(list, predicate, ac) {
+        if (ac === undefined) {
+            ac = Array.prototype;
+        }
+        if (list && typeof ac.find === 'function') {
+            return ac.find.call(list, predicate);
+        }
+        for (var i = 0; i < list.length; i++) {
+            if (Object.prototype.hasOwnProperty.call(list, i)) {
+                var item = list[i];
+                if (predicate.call(undefined, item, i, list)) {
+                    return item;
+                }
+            }
+        }
+    }
+
+    /**
+     * "Shallow freezes" an object to render it immutable.
+     * Uses `Object.freeze` if available,
+     * otherwise the immutability is only in the type.
+     *
+     * Is used to create "enum like" objects.
+     *
+     * @template T
+     * @param {T} object the object to freeze
+     * @param {Pick<ObjectConstructor, 'freeze'> = Object} oc `Object` by default,
+     * 				allows to inject custom object constructor for tests
+     * @returns {Readonly<T>}
+     *
+     * @see https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/freeze
+     */
+    function freeze(object, oc) {
+        if (oc === undefined) {
+            oc = Object;
+        }
+        return oc && typeof oc.freeze === 'function' ? oc.freeze(object) : object;
+    }
+
+    /**
+     * Since we can not rely on `Object.assign` we provide a simplified version
+     * that is sufficient for our needs.
+     *
+     * @param {Object} target
+     * @param {Object | null | undefined} source
+     *
+     * @returns {Object} target
+     * @throws TypeError if target is not an object
+     *
+     * @see https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/assign
+     * @see https://tc39.es/ecma262/multipage/fundamental-objects.html#sec-object.assign
+     */
+    function assign(target, source) {
+        if (target === null || typeof target !== 'object') {
+            throw new TypeError('target is not an object');
+        }
+        for (var key in source) {
+            if (Object.prototype.hasOwnProperty.call(source, key)) {
+                target[key] = source[key];
+            }
+        }
+        return target;
+    }
+
+    /**
+     * All mime types that are allowed as input to `DOMParser.parseFromString`
+     *
+     * @see https://developer.mozilla.org/en-US/docs/Web/API/DOMParser/parseFromString#Argument02 MDN
+     * @see https://html.spec.whatwg.org/multipage/dynamic-markup-insertion.html#domparsersupportedtype WHATWG HTML Spec
+     * @see DOMParser.prototype.parseFromString
+     */
+    var MIME_TYPE = freeze({
+        /**
+         * `text/html`, the only mime type that triggers treating an XML document as HTML.
+         *
+         * @see DOMParser.SupportedType.isHTML
+         * @see https://www.iana.org/assignments/media-types/text/html IANA MimeType registration
+         * @see https://en.wikipedia.org/wiki/HTML Wikipedia
+         * @see https://developer.mozilla.org/en-US/docs/Web/API/DOMParser/parseFromString MDN
+         * @see https://html.spec.whatwg.org/multipage/dynamic-markup-insertion.html#dom-domparser-parsefromstring WHATWG HTML Spec
+         */
+        HTML: 'text/html',
+        /**
+         * Helper method to check a mime type if it indicates an HTML document
+         *
+         * @param {string} [value]
+         * @returns {boolean}
+         *
+         * @see https://www.iana.org/assignments/media-types/text/html IANA MimeType registration
+         * @see https://en.wikipedia.org/wiki/HTML Wikipedia
+         * @see https://developer.mozilla.org/en-US/docs/Web/API/DOMParser/parseFromString MDN
+         * @see https://html.spec.whatwg.org/multipage/dynamic-markup-insertion.html#dom-domparser-parsefromstring 	 */
+        isHTML: function (value) {
+            return value === MIME_TYPE.HTML;
+        },
+        /**
+         * `application/xml`, the standard mime type for XML documents.
+         *
+         * @see https://www.iana.org/assignments/media-types/application/xml IANA MimeType registration
+         * @see https://tools.ietf.org/html/rfc7303#section-9.1 RFC 7303
+         * @see https://en.wikipedia.org/wiki/XML_and_MIME Wikipedia
+         */
+        XML_APPLICATION: 'application/xml',
+        /**
+         * `text/html`, an alias for `application/xml`.
+         *
+         * @see https://tools.ietf.org/html/rfc7303#section-9.2 RFC 7303
+         * @see https://www.iana.org/assignments/media-types/text/xml IANA MimeType registration
+         * @see https://en.wikipedia.org/wiki/XML_and_MIME Wikipedia
+         */
+        XML_TEXT: 'text/xml',
+        /**
+         * `application/xhtml+xml`, indicates an XML document that has the default HTML namespace,
+         * but is parsed as an XML document.
+         *
+         * @see https://www.iana.org/assignments/media-types/application/xhtml+xml IANA MimeType registration
+         * @see https://dom.spec.whatwg.org/#dom-domimplementation-createdocument WHATWG DOM Spec
+         * @see https://en.wikipedia.org/wiki/XHTML Wikipedia
+         */
+        XML_XHTML_APPLICATION: 'application/xhtml+xml',
+        /**
+         * `image/svg+xml`,
+         *
+         * @see https://www.iana.org/assignments/media-types/image/svg+xml IANA MimeType registration
+         * @see https://www.w3.org/TR/SVG11/ W3C SVG 1.1
+         * @see https://en.wikipedia.org/wiki/Scalable_Vector_Graphics Wikipedia
+         */
+        XML_SVG_IMAGE: 'image/svg+xml'
+    });
+
+    /**
+     * Namespaces that are used in this code base.
+     *
+     * @see http://www.w3.org/TR/REC-xml-names
+     */
+    var NAMESPACE$3 = freeze({
+        /**
+         * The XHTML namespace.
+         *
+         * @see http://www.w3.org/1999/xhtml
+         */
+        HTML: 'http://www.w3.org/1999/xhtml',
+        /**
+         * Checks if `uri` equals `NAMESPACE.HTML`.
+         *
+         * @param {string} [uri]
+         *
+         * @see NAMESPACE.HTML
+         */
+        isHTML: function (uri) {
+            return uri === NAMESPACE$3.HTML;
+        },
+        /**
+         * The SVG namespace.
+         *
+         * @see http://www.w3.org/2000/svg
+         */
+        SVG: 'http://www.w3.org/2000/svg',
+        /**
+         * The `xml:` namespace.
+         *
+         * @see http://www.w3.org/XML/1998/namespace
+         */
+        XML: 'http://www.w3.org/XML/1998/namespace',
+        /**
+         * The `xmlns:` namespace
+         *
+         * @see https://www.w3.org/2000/xmlns/
+         */
+        XMLNS: 'http://www.w3.org/2000/xmlns/'
+    });
+    var assign_1 = assign;
+    var find_1 = find$1;
+    var freeze_1 = freeze;
+    var MIME_TYPE_1 = MIME_TYPE;
+    var NAMESPACE_1 = NAMESPACE$3;
+    var conventions = {
+        assign: assign_1,
+        find: find_1,
+        freeze: freeze_1,
+        MIME_TYPE: MIME_TYPE_1,
+        NAMESPACE: NAMESPACE_1
+    };
+
+    var find = conventions.find;
+    var NAMESPACE$2 = conventions.NAMESPACE;
+
+    /**
+     * A prerequisite for `[].filter`, to drop elements that are empty
+     * @param {string} input
+     * @returns {boolean}
+     */
+    function notEmptyString(input) {
+        return input !== '';
+    }
+    /**
+     * @see https://infra.spec.whatwg.org/#split-on-ascii-whitespace
+     * @see https://infra.spec.whatwg.org/#ascii-whitespace
+     *
+     * @param {string} input
+     * @returns {string[]} (can be empty)
+     */
+    function splitOnASCIIWhitespace(input) {
+        // U+0009 TAB, U+000A LF, U+000C FF, U+000D CR, U+0020 SPACE
+        return input ? input.split(/[\t\n\f\r ]+/).filter(notEmptyString) : [];
+    }
+
+    /**
+     * Adds element as a key to current if it is not already present.
+     *
+     * @param {Record<string, boolean | undefined>} current
+     * @param {string} element
+     * @returns {Record<string, boolean | undefined>}
+     */
+    function orderedSetReducer(current, element) {
+        if (!current.hasOwnProperty(element)) {
+            current[element] = true;
+        }
+        return current;
+    }
+
+    /**
+     * @see https://infra.spec.whatwg.org/#ordered-set
+     * @param {string} input
+     * @returns {string[]}
+     */
+    function toOrderedSet(input) {
+        if (!input) return [];
+        var list = splitOnASCIIWhitespace(input);
+        return Object.keys(list.reduce(orderedSetReducer, {}));
+    }
+
+    /**
+     * Uses `list.indexOf` to implement something like `Array.prototype.includes`,
+     * which we can not rely on being available.
+     *
+     * @param {any[]} list
+     * @returns {function(any): boolean}
+     */
+    function arrayIncludes(list) {
+        return function (element) {
+            return list && list.indexOf(element) !== -1;
+        };
+    }
+    function copy(src, dest) {
+        for (var p in src) {
+            if (Object.prototype.hasOwnProperty.call(src, p)) {
+                dest[p] = src[p];
+            }
+        }
+    }
+
+    /**
+     ^\w+\.prototype\.([_\w]+)\s*=\s*((?:.*\{\s*?[\r\n][\s\S]*?^})|\S.*?(?=[;\r\n]));?
+     ^\w+\.prototype\.([_\w]+)\s*=\s*(\S.*?(?=[;\r\n]));?
+     */
+    function _extends(Class, Super) {
+        var pt = Class.prototype;
+        if (!(pt instanceof Super)) {
+            function t() {}
+            t.prototype = Super.prototype;
+            t = new t();
+            copy(pt, t);
+            Class.prototype = pt = t;
+        }
+        if (pt.constructor != Class) {
+            if (typeof Class != 'function') {
+                console.error("unknown Class:" + Class);
+            }
+            pt.constructor = Class;
+        }
+    }
+
+    // Node Types
+    var NodeType = {};
+    var ELEMENT_NODE = NodeType.ELEMENT_NODE = 1;
+    var ATTRIBUTE_NODE = NodeType.ATTRIBUTE_NODE = 2;
+    var TEXT_NODE = NodeType.TEXT_NODE = 3;
+    var CDATA_SECTION_NODE = NodeType.CDATA_SECTION_NODE = 4;
+    var ENTITY_REFERENCE_NODE = NodeType.ENTITY_REFERENCE_NODE = 5;
+    var ENTITY_NODE = NodeType.ENTITY_NODE = 6;
+    var PROCESSING_INSTRUCTION_NODE = NodeType.PROCESSING_INSTRUCTION_NODE = 7;
+    var COMMENT_NODE = NodeType.COMMENT_NODE = 8;
+    var DOCUMENT_NODE = NodeType.DOCUMENT_NODE = 9;
+    var DOCUMENT_TYPE_NODE = NodeType.DOCUMENT_TYPE_NODE = 10;
+    var DOCUMENT_FRAGMENT_NODE = NodeType.DOCUMENT_FRAGMENT_NODE = 11;
+    var NOTATION_NODE = NodeType.NOTATION_NODE = 12;
+
+    // ExceptionCode
+    var ExceptionCode = {};
+    var ExceptionMessage = {};
+    ExceptionCode.INDEX_SIZE_ERR = (ExceptionMessage[1] = "Index size error", 1);
+    ExceptionCode.DOMSTRING_SIZE_ERR = (ExceptionMessage[2] = "DOMString size error", 2);
+    var HIERARCHY_REQUEST_ERR = ExceptionCode.HIERARCHY_REQUEST_ERR = (ExceptionMessage[3] = "Hierarchy request error", 3);
+    ExceptionCode.WRONG_DOCUMENT_ERR = (ExceptionMessage[4] = "Wrong document", 4);
+    ExceptionCode.INVALID_CHARACTER_ERR = (ExceptionMessage[5] = "Invalid character", 5);
+    ExceptionCode.NO_DATA_ALLOWED_ERR = (ExceptionMessage[6] = "No data allowed", 6);
+    ExceptionCode.NO_MODIFICATION_ALLOWED_ERR = (ExceptionMessage[7] = "No modification allowed", 7);
+    var NOT_FOUND_ERR = ExceptionCode.NOT_FOUND_ERR = (ExceptionMessage[8] = "Not found", 8);
+    ExceptionCode.NOT_SUPPORTED_ERR = (ExceptionMessage[9] = "Not supported", 9);
+    var INUSE_ATTRIBUTE_ERR = ExceptionCode.INUSE_ATTRIBUTE_ERR = (ExceptionMessage[10] = "Attribute in use", 10);
+    //level2
+    ExceptionCode.INVALID_STATE_ERR = (ExceptionMessage[11] = "Invalid state", 11);
+    ExceptionCode.SYNTAX_ERR = (ExceptionMessage[12] = "Syntax error", 12);
+    ExceptionCode.INVALID_MODIFICATION_ERR = (ExceptionMessage[13] = "Invalid modification", 13);
+    ExceptionCode.NAMESPACE_ERR = (ExceptionMessage[14] = "Invalid namespace", 14);
+    ExceptionCode.INVALID_ACCESS_ERR = (ExceptionMessage[15] = "Invalid access", 15);
+
+    /**
+     * DOM Level 2
+     * Object DOMException
+     * @see http://www.w3.org/TR/2000/REC-DOM-Level-2-Core-20001113/ecma-script-binding.html
+     * @see http://www.w3.org/TR/REC-DOM-Level-1/ecma-script-language-binding.html
+     */
+    function DOMException(code, message) {
+        if (message instanceof Error) {
+            var error = message;
+        } else {
+            error = this;
+            Error.call(this, ExceptionMessage[code]);
+            this.message = ExceptionMessage[code];
+            if (Error.captureStackTrace) Error.captureStackTrace(this, DOMException);
+        }
+        error.code = code;
+        if (message) this.message = this.message + ": " + message;
+        return error;
+    }
+    DOMException.prototype = Error.prototype;
+    copy(ExceptionCode, DOMException);
+
+    /**
+     * @see http://www.w3.org/TR/2000/REC-DOM-Level-2-Core-20001113/core.html#ID-536297177
+     * The NodeList interface provides the abstraction of an ordered collection of nodes, without defining or constraining how this collection is implemented. NodeList objects in the DOM are live.
+     * The items in the NodeList are accessible via an integral index, starting from 0.
+     */
+    function NodeList() {}
+    NodeList.prototype = {
+        /**
+         * The number of nodes in the list. The range of valid child node indices is 0 to length-1 inclusive.
+         * @standard level1
+         */
+        length: 0,
+        /**
+         * Returns the indexth item in the collection. If index is greater than or equal to the number of nodes in the list, this returns null.
+         * @standard level1
+         * @param index  unsigned long
+         *   Index into the collection.
+         * @return Node
+         * 	The node at the indexth position in the NodeList, or null if that is not a valid index.
+         */
+        item: function (index) {
+            return this[index] || null;
+        },
+        toString: function (isHTML, nodeFilter) {
+            for (var buf = [], i = 0; i < this.length; i++) {
+                serializeToString(this[i], buf, isHTML, nodeFilter);
+            }
+            return buf.join('');
+        },
+        /**
+         * @private
+         * @param {function (Node):boolean} predicate
+         * @returns {Node[]}
+         */
+        filter: function (predicate) {
+            return Array.prototype.filter.call(this, predicate);
+        },
+        /**
+         * @private
+         * @param {Node} item
+         * @returns {number}
+         */
+        indexOf: function (item) {
+            return Array.prototype.indexOf.call(this, item);
+        }
+    };
+    function LiveNodeList(node, refresh) {
+        this._node = node;
+        this._refresh = refresh;
+        _updateLiveList(this);
+    }
+    function _updateLiveList(list) {
+        var inc = list._node._inc || list._node.ownerDocument._inc;
+        if (list._inc != inc) {
+            var ls = list._refresh(list._node);
+            //console.log(ls.length)
+            __set__(list, 'length', ls.length);
+            copy(ls, list);
+            list._inc = inc;
+        }
+    }
+    LiveNodeList.prototype.item = function (i) {
+        _updateLiveList(this);
+        return this[i];
+    };
+    _extends(LiveNodeList, NodeList);
+
+    /**
+     * Objects implementing the NamedNodeMap interface are used
+     * to represent collections of nodes that can be accessed by name.
+     * Note that NamedNodeMap does not inherit from NodeList;
+     * NamedNodeMaps are not maintained in any particular order.
+     * Objects contained in an object implementing NamedNodeMap may also be accessed by an ordinal index,
+     * but this is simply to allow convenient enumeration of the contents of a NamedNodeMap,
+     * and does not imply that the DOM specifies an order to these Nodes.
+     * NamedNodeMap objects in the DOM are live.
+     * used for attributes or DocumentType entities
+     */
+    function NamedNodeMap() {}
+    function _findNodeIndex(list, node) {
+        var i = list.length;
+        while (i--) {
+            if (list[i] === node) {
+                return i;
+            }
+        }
+    }
+    function _addNamedNode(el, list, newAttr, oldAttr) {
+        if (oldAttr) {
+            list[_findNodeIndex(list, oldAttr)] = newAttr;
+        } else {
+            list[list.length++] = newAttr;
+        }
+        if (el) {
+            newAttr.ownerElement = el;
+            var doc = el.ownerDocument;
+            if (doc) {
+                oldAttr && _onRemoveAttribute(doc, el, oldAttr);
+                _onAddAttribute(doc, el, newAttr);
+            }
+        }
+    }
+    function _removeNamedNode(el, list, attr) {
+        //console.log('remove attr:'+attr)
+        var i = _findNodeIndex(list, attr);
+        if (i >= 0) {
+            var lastIndex = list.length - 1;
+            while (i < lastIndex) {
+                list[i] = list[++i];
+            }
+            list.length = lastIndex;
+            if (el) {
+                var doc = el.ownerDocument;
+                if (doc) {
+                    _onRemoveAttribute(doc, el, attr);
+                    attr.ownerElement = null;
+                }
+            }
+        } else {
+            throw new DOMException(NOT_FOUND_ERR, new Error(el.tagName + '@' + attr));
+        }
+    }
+    NamedNodeMap.prototype = {
+        length: 0,
+        item: NodeList.prototype.item,
+        getNamedItem: function (key) {
+            //		if(key.indexOf(':')>0 || key == 'xmlns'){
+            //			return null;
+            //		}
+            //console.log()
+            var i = this.length;
+            while (i--) {
+                var attr = this[i];
+                //console.log(attr.nodeName,key)
+                if (attr.nodeName == key) {
+                    return attr;
+                }
+            }
+        },
+        setNamedItem: function (attr) {
+            var el = attr.ownerElement;
+            if (el && el != this._ownerElement) {
+                throw new DOMException(INUSE_ATTRIBUTE_ERR);
+            }
+            var oldAttr = this.getNamedItem(attr.nodeName);
+            _addNamedNode(this._ownerElement, this, attr, oldAttr);
+            return oldAttr;
+        },
+        /* returns Node */
+        setNamedItemNS: function (attr) {
+            // raises: WRONG_DOCUMENT_ERR,NO_MODIFICATION_ALLOWED_ERR,INUSE_ATTRIBUTE_ERR
+            var el = attr.ownerElement,
+                oldAttr;
+            if (el && el != this._ownerElement) {
+                throw new DOMException(INUSE_ATTRIBUTE_ERR);
+            }
+            oldAttr = this.getNamedItemNS(attr.namespaceURI, attr.localName);
+            _addNamedNode(this._ownerElement, this, attr, oldAttr);
+            return oldAttr;
+        },
+        /* returns Node */
+        removeNamedItem: function (key) {
+            var attr = this.getNamedItem(key);
+            _removeNamedNode(this._ownerElement, this, attr);
+            return attr;
+        },
+        // raises: NOT_FOUND_ERR,NO_MODIFICATION_ALLOWED_ERR
+
+        //for level2
+        removeNamedItemNS: function (namespaceURI, localName) {
+            var attr = this.getNamedItemNS(namespaceURI, localName);
+            _removeNamedNode(this._ownerElement, this, attr);
+            return attr;
+        },
+        getNamedItemNS: function (namespaceURI, localName) {
+            var i = this.length;
+            while (i--) {
+                var node = this[i];
+                if (node.localName == localName && node.namespaceURI == namespaceURI) {
+                    return node;
+                }
+            }
+            return null;
+        }
+    };
+
+    /**
+     * The DOMImplementation interface represents an object providing methods
+     * which are not dependent on any particular document.
+     * Such an object is returned by the `Document.implementation` property.
+     *
+     * __The individual methods describe the differences compared to the specs.__
+     *
+     * @constructor
+     *
+     * @see https://developer.mozilla.org/en-US/docs/Web/API/DOMImplementation MDN
+     * @see https://www.w3.org/TR/REC-DOM-Level-1/level-one-core.html#ID-102161490 DOM Level 1 Core (Initial)
+     * @see https://www.w3.org/TR/DOM-Level-2-Core/core.html#ID-102161490 DOM Level 2 Core
+     * @see https://www.w3.org/TR/DOM-Level-3-Core/core.html#ID-102161490 DOM Level 3 Core
+     * @see https://dom.spec.whatwg.org/#domimplementation DOM Living Standard
+     */
+    function DOMImplementation$1() {}
+    DOMImplementation$1.prototype = {
+        /**
+         * The DOMImplementation.hasFeature() method returns a Boolean flag indicating if a given feature is supported.
+         * The different implementations fairly diverged in what kind of features were reported.
+         * The latest version of the spec settled to force this method to always return true, where the functionality was accurate and in use.
+         *
+         * @deprecated It is deprecated and modern browsers return true in all cases.
+         *
+         * @param {string} feature
+         * @param {string} [version]
+         * @returns {boolean} always true
+         *
+         * @see https://developer.mozilla.org/en-US/docs/Web/API/DOMImplementation/hasFeature MDN
+         * @see https://www.w3.org/TR/REC-DOM-Level-1/level-one-core.html#ID-5CED94D7 DOM Level 1 Core
+         * @see https://dom.spec.whatwg.org/#dom-domimplementation-hasfeature DOM Living Standard
+         */
+        hasFeature: function (feature, version) {
+            return true;
+        },
+        /**
+         * Creates an XML Document object of the specified type with its document element.
+         *
+         * __It behaves slightly different from the description in the living standard__:
+         * - There is no interface/class `XMLDocument`, it returns a `Document` instance.
+         * - `contentType`, `encoding`, `mode`, `origin`, `url` fields are currently not declared.
+         * - this implementation is not validating names or qualified names
+         *   (when parsing XML strings, the SAX parser takes care of that)
+         *
+         * @param {string|null} namespaceURI
+         * @param {string} qualifiedName
+         * @param {DocumentType=null} doctype
+         * @returns {Document}
+         *
+         * @see https://developer.mozilla.org/en-US/docs/Web/API/DOMImplementation/createDocument MDN
+         * @see https://www.w3.org/TR/DOM-Level-2-Core/core.html#Level-2-Core-DOM-createDocument DOM Level 2 Core (initial)
+         * @see https://dom.spec.whatwg.org/#dom-domimplementation-createdocument  DOM Level 2 Core
+         *
+         * @see https://dom.spec.whatwg.org/#validate-and-extract DOM: Validate and extract
+         * @see https://www.w3.org/TR/xml/#NT-NameStartChar XML Spec: Names
+         * @see https://www.w3.org/TR/xml-names/#ns-qualnames XML Namespaces: Qualified names
+         */
+        createDocument: function (namespaceURI, qualifiedName, doctype) {
+            var doc = new Document();
+            doc.implementation = this;
+            doc.childNodes = new NodeList();
+            doc.doctype = doctype || null;
+            if (doctype) {
+                doc.appendChild(doctype);
+            }
+            if (qualifiedName) {
+                var root = doc.createElementNS(namespaceURI, qualifiedName);
+                doc.appendChild(root);
+            }
+            return doc;
+        },
+        /**
+         * Returns a doctype, with the given `qualifiedName`, `publicId`, and `systemId`.
+         *
+         * __This behavior is slightly different from the in the specs__:
+         * - this implementation is not validating names or qualified names
+         *   (when parsing XML strings, the SAX parser takes care of that)
+         *
+         * @param {string} qualifiedName
+         * @param {string} [publicId]
+         * @param {string} [systemId]
+         * @returns {DocumentType} which can either be used with `DOMImplementation.createDocument` upon document creation
+         * 				  or can be put into the document via methods like `Node.insertBefore()` or `Node.replaceChild()`
+         *
+         * @see https://developer.mozilla.org/en-US/docs/Web/API/DOMImplementation/createDocumentType MDN
+         * @see https://www.w3.org/TR/DOM-Level-2-Core/core.html#Level-2-Core-DOM-createDocType DOM Level 2 Core
+         * @see https://dom.spec.whatwg.org/#dom-domimplementation-createdocumenttype DOM Living Standard
+         *
+         * @see https://dom.spec.whatwg.org/#validate-and-extract DOM: Validate and extract
+         * @see https://www.w3.org/TR/xml/#NT-NameStartChar XML Spec: Names
+         * @see https://www.w3.org/TR/xml-names/#ns-qualnames XML Namespaces: Qualified names
+         */
+        createDocumentType: function (qualifiedName, publicId, systemId) {
+            var node = new DocumentType();
+            node.name = qualifiedName;
+            node.nodeName = qualifiedName;
+            node.publicId = publicId || '';
+            node.systemId = systemId || '';
+            return node;
+        }
+    };
+
+    /**
+     * @see http://www.w3.org/TR/2000/REC-DOM-Level-2-Core-20001113/core.html#ID-1950641247
+     */
+
+    function Node() {}
+    Node.prototype = {
+        firstChild: null,
+        lastChild: null,
+        previousSibling: null,
+        nextSibling: null,
+        attributes: null,
+        parentNode: null,
+        childNodes: null,
+        ownerDocument: null,
+        nodeValue: null,
+        namespaceURI: null,
+        prefix: null,
+        localName: null,
+        // Modified in DOM Level 2:
+        insertBefore: function (newChild, refChild) {
+            //raises
+            return _insertBefore(this, newChild, refChild);
+        },
+        replaceChild: function (newChild, oldChild) {
+            //raises
+            _insertBefore(this, newChild, oldChild, assertPreReplacementValidityInDocument);
+            if (oldChild) {
+                this.removeChild(oldChild);
+            }
+        },
+        removeChild: function (oldChild) {
+            return _removeChild(this, oldChild);
+        },
+        appendChild: function (newChild) {
+            return this.insertBefore(newChild, null);
+        },
+        hasChildNodes: function () {
+            return this.firstChild != null;
+        },
+        cloneNode: function (deep) {
+            return cloneNode(this.ownerDocument || this, this, deep);
+        },
+        // Modified in DOM Level 2:
+        normalize: function () {
+            var child = this.firstChild;
+            while (child) {
+                var next = child.nextSibling;
+                if (next && next.nodeType == TEXT_NODE && child.nodeType == TEXT_NODE) {
+                    this.removeChild(next);
+                    child.appendData(next.data);
+                } else {
+                    child.normalize();
+                    child = next;
+                }
+            }
+        },
+        // Introduced in DOM Level 2:
+        isSupported: function (feature, version) {
+            return this.ownerDocument.implementation.hasFeature(feature, version);
+        },
+        // Introduced in DOM Level 2:
+        hasAttributes: function () {
+            return this.attributes.length > 0;
+        },
+        /**
+         * Look up the prefix associated to the given namespace URI, starting from this node.
+         * **The default namespace declarations are ignored by this method.**
+         * See Namespace Prefix Lookup for details on the algorithm used by this method.
+         *
+         * _Note: The implementation seems to be incomplete when compared to the algorithm described in the specs._
+         *
+         * @param {string | null} namespaceURI
+         * @returns {string | null}
+         * @see https://www.w3.org/TR/DOM-Level-3-Core/core.html#Node3-lookupNamespacePrefix
+         * @see https://www.w3.org/TR/DOM-Level-3-Core/namespaces-algorithms.html#lookupNamespacePrefixAlgo
+         * @see https://dom.spec.whatwg.org/#dom-node-lookupprefix
+         * @see https://github.com/xmldom/xmldom/issues/322
+         */
+        lookupPrefix: function (namespaceURI) {
+            var el = this;
+            while (el) {
+                var map = el._nsMap;
+                //console.dir(map)
+                if (map) {
+                    for (var n in map) {
+                        if (Object.prototype.hasOwnProperty.call(map, n) && map[n] === namespaceURI) {
+                            return n;
+                        }
+                    }
+                }
+                el = el.nodeType == ATTRIBUTE_NODE ? el.ownerDocument : el.parentNode;
+            }
+            return null;
+        },
+        // Introduced in DOM Level 3:
+        lookupNamespaceURI: function (prefix) {
+            var el = this;
+            while (el) {
+                var map = el._nsMap;
+                //console.dir(map)
+                if (map) {
+                    if (Object.prototype.hasOwnProperty.call(map, prefix)) {
+                        return map[prefix];
+                    }
+                }
+                el = el.nodeType == ATTRIBUTE_NODE ? el.ownerDocument : el.parentNode;
+            }
+            return null;
+        },
+        // Introduced in DOM Level 3:
+        isDefaultNamespace: function (namespaceURI) {
+            var prefix = this.lookupPrefix(namespaceURI);
+            return prefix == null;
+        }
+    };
+    function _xmlEncoder(c) {
+        return c == '<' && '&lt;' || c == '>' && '&gt;' || c == '&' && '&amp;' || c == '"' && '&quot;' || '&#' + c.charCodeAt() + ';';
+    }
+    copy(NodeType, Node);
+    copy(NodeType, Node.prototype);
+
+    /**
+     * @param callback return true for continue,false for break
+     * @return boolean true: break visit;
+     */
+    function _visitNode(node, callback) {
+        if (callback(node)) {
+            return true;
+        }
+        if (node = node.firstChild) {
+            do {
+                if (_visitNode(node, callback)) {
+                    return true;
+                }
+            } while (node = node.nextSibling);
+        }
+    }
+    function Document() {
+        this.ownerDocument = this;
+    }
+    function _onAddAttribute(doc, el, newAttr) {
+        doc && doc._inc++;
+        var ns = newAttr.namespaceURI;
+        if (ns === NAMESPACE$2.XMLNS) {
+            //update namespace
+            el._nsMap[newAttr.prefix ? newAttr.localName : ''] = newAttr.value;
+        }
+    }
+    function _onRemoveAttribute(doc, el, newAttr, remove) {
+        doc && doc._inc++;
+        var ns = newAttr.namespaceURI;
+        if (ns === NAMESPACE$2.XMLNS) {
+            //update namespace
+            delete el._nsMap[newAttr.prefix ? newAttr.localName : ''];
+        }
+    }
+
+    /**
+     * Updates `el.childNodes`, updating the indexed items and it's `length`.
+     * Passing `newChild` means it will be appended.
+     * Otherwise it's assumed that an item has been removed,
+     * and `el.firstNode` and it's `.nextSibling` are used
+     * to walk the current list of child nodes.
+     *
+     * @param {Document} doc
+     * @param {Node} el
+     * @param {Node} [newChild]
+     * @private
+     */
+    function _onUpdateChild(doc, el, newChild) {
+        if (doc && doc._inc) {
+            doc._inc++;
+            //update childNodes
+            var cs = el.childNodes;
+            if (newChild) {
+                cs[cs.length++] = newChild;
+            } else {
+                var child = el.firstChild;
+                var i = 0;
+                while (child) {
+                    cs[i++] = child;
+                    child = child.nextSibling;
+                }
+                cs.length = i;
+                delete cs[cs.length];
+            }
+        }
+    }
+
+    /**
+     * Removes the connections between `parentNode` and `child`
+     * and any existing `child.previousSibling` or `child.nextSibling`.
+     *
+     * @see https://github.com/xmldom/xmldom/issues/135
+     * @see https://github.com/xmldom/xmldom/issues/145
+     *
+     * @param {Node} parentNode
+     * @param {Node} child
+     * @returns {Node} the child that was removed.
+     * @private
+     */
+    function _removeChild(parentNode, child) {
+        var previous = child.previousSibling;
+        var next = child.nextSibling;
+        if (previous) {
+            previous.nextSibling = next;
+        } else {
+            parentNode.firstChild = next;
+        }
+        if (next) {
+            next.previousSibling = previous;
+        } else {
+            parentNode.lastChild = previous;
+        }
+        child.parentNode = null;
+        child.previousSibling = null;
+        child.nextSibling = null;
+        _onUpdateChild(parentNode.ownerDocument, parentNode);
+        return child;
+    }
+
+    /**
+     * Returns `true` if `node` can be a parent for insertion.
+     * @param {Node} node
+     * @returns {boolean}
+     */
+    function hasValidParentNodeType(node) {
+        return node && (node.nodeType === Node.DOCUMENT_NODE || node.nodeType === Node.DOCUMENT_FRAGMENT_NODE || node.nodeType === Node.ELEMENT_NODE);
+    }
+
+    /**
+     * Returns `true` if `node` can be inserted according to it's `nodeType`.
+     * @param {Node} node
+     * @returns {boolean}
+     */
+    function hasInsertableNodeType(node) {
+        return node && (isElementNode(node) || isTextNode(node) || isDocTypeNode(node) || node.nodeType === Node.DOCUMENT_FRAGMENT_NODE || node.nodeType === Node.COMMENT_NODE || node.nodeType === Node.PROCESSING_INSTRUCTION_NODE);
+    }
+
+    /**
+     * Returns true if `node` is a DOCTYPE node
+     * @param {Node} node
+     * @returns {boolean}
+     */
+    function isDocTypeNode(node) {
+        return node && node.nodeType === Node.DOCUMENT_TYPE_NODE;
+    }
+
+    /**
+     * Returns true if the node is an element
+     * @param {Node} node
+     * @returns {boolean}
+     */
+    function isElementNode(node) {
+        return node && node.nodeType === Node.ELEMENT_NODE;
+    }
+    /**
+     * Returns true if `node` is a text node
+     * @param {Node} node
+     * @returns {boolean}
+     */
+    function isTextNode(node) {
+        return node && node.nodeType === Node.TEXT_NODE;
+    }
+
+    /**
+     * Check if en element node can be inserted before `child`, or at the end if child is falsy,
+     * according to the presence and position of a doctype node on the same level.
+     *
+     * @param {Document} doc The document node
+     * @param {Node} child the node that would become the nextSibling if the element would be inserted
+     * @returns {boolean} `true` if an element can be inserted before child
+     * @private
+     * https://dom.spec.whatwg.org/#concept-node-ensure-pre-insertion-validity
+     */
+    function isElementInsertionPossible(doc, child) {
+        var parentChildNodes = doc.childNodes || [];
+        if (find(parentChildNodes, isElementNode) || isDocTypeNode(child)) {
+            return false;
+        }
+        var docTypeNode = find(parentChildNodes, isDocTypeNode);
+        return !(child && docTypeNode && parentChildNodes.indexOf(docTypeNode) > parentChildNodes.indexOf(child));
+    }
+
+    /**
+     * Check if en element node can be inserted before `child`, or at the end if child is falsy,
+     * according to the presence and position of a doctype node on the same level.
+     *
+     * @param {Node} doc The document node
+     * @param {Node} child the node that would become the nextSibling if the element would be inserted
+     * @returns {boolean} `true` if an element can be inserted before child
+     * @private
+     * https://dom.spec.whatwg.org/#concept-node-ensure-pre-insertion-validity
+     */
+    function isElementReplacementPossible(doc, child) {
+        var parentChildNodes = doc.childNodes || [];
+        function hasElementChildThatIsNotChild(node) {
+            return isElementNode(node) && node !== child;
+        }
+        if (find(parentChildNodes, hasElementChildThatIsNotChild)) {
+            return false;
+        }
+        var docTypeNode = find(parentChildNodes, isDocTypeNode);
+        return !(child && docTypeNode && parentChildNodes.indexOf(docTypeNode) > parentChildNodes.indexOf(child));
+    }
+
+    /**
+     * @private
+     * Steps 1-5 of the checks before inserting and before replacing a child are the same.
+     *
+     * @param {Node} parent the parent node to insert `node` into
+     * @param {Node} node the node to insert
+     * @param {Node=} child the node that should become the `nextSibling` of `node`
+     * @returns {Node}
+     * @throws DOMException for several node combinations that would create a DOM that is not well-formed.
+     * @throws DOMException if `child` is provided but is not a child of `parent`.
+     * @see https://dom.spec.whatwg.org/#concept-node-ensure-pre-insertion-validity
+     * @see https://dom.spec.whatwg.org/#concept-node-replace
+     */
+    function assertPreInsertionValidity1to5(parent, node, child) {
+        // 1. If `parent` is not a Document, DocumentFragment, or Element node, then throw a "HierarchyRequestError" DOMException.
+        if (!hasValidParentNodeType(parent)) {
+            throw new DOMException(HIERARCHY_REQUEST_ERR, 'Unexpected parent node type ' + parent.nodeType);
+        }
+        // 2. If `node` is a host-including inclusive ancestor of `parent`, then throw a "HierarchyRequestError" DOMException.
+        // not implemented!
+        // 3. If `child` is non-null and its parent is not `parent`, then throw a "NotFoundError" DOMException.
+        if (child && child.parentNode !== parent) {
+            throw new DOMException(NOT_FOUND_ERR, 'child not in parent');
+        }
+        if (
+            // 4. If `node` is not a DocumentFragment, DocumentType, Element, or CharacterData node, then throw a "HierarchyRequestError" DOMException.
+            !hasInsertableNodeType(node) ||
+            // 5. If either `node` is a Text node and `parent` is a document,
+            // the sax parser currently adds top level text nodes, this will be fixed in 0.9.0
+            // || (node.nodeType === Node.TEXT_NODE && parent.nodeType === Node.DOCUMENT_NODE)
+            // or `node` is a doctype and `parent` is not a document, then throw a "HierarchyRequestError" DOMException.
+            isDocTypeNode(node) && parent.nodeType !== Node.DOCUMENT_NODE) {
+            throw new DOMException(HIERARCHY_REQUEST_ERR, 'Unexpected node type ' + node.nodeType + ' for parent node type ' + parent.nodeType);
+        }
+    }
+
+    /**
+     * @private
+     * Step 6 of the checks before inserting and before replacing a child are different.
+     *
+     * @param {Document} parent the parent node to insert `node` into
+     * @param {Node} node the node to insert
+     * @param {Node | undefined} child the node that should become the `nextSibling` of `node`
+     * @returns {Node}
+     * @throws DOMException for several node combinations that would create a DOM that is not well-formed.
+     * @throws DOMException if `child` is provided but is not a child of `parent`.
+     * @see https://dom.spec.whatwg.org/#concept-node-ensure-pre-insertion-validity
+     * @see https://dom.spec.whatwg.org/#concept-node-replace
+     */
+    function assertPreInsertionValidityInDocument(parent, node, child) {
+        var parentChildNodes = parent.childNodes || [];
+        var nodeChildNodes = node.childNodes || [];
+
+        // DocumentFragment
+        if (node.nodeType === Node.DOCUMENT_FRAGMENT_NODE) {
+            var nodeChildElements = nodeChildNodes.filter(isElementNode);
+            // If node has more than one element child or has a Text node child.
+            if (nodeChildElements.length > 1 || find(nodeChildNodes, isTextNode)) {
+                throw new DOMException(HIERARCHY_REQUEST_ERR, 'More than one element or text in fragment');
+            }
+            // Otherwise, if `node` has one element child and either `parent` has an element child,
+            // `child` is a doctype, or `child` is non-null and a doctype is following `child`.
+            if (nodeChildElements.length === 1 && !isElementInsertionPossible(parent, child)) {
+                throw new DOMException(HIERARCHY_REQUEST_ERR, 'Element in fragment can not be inserted before doctype');
+            }
+        }
+        // Element
+        if (isElementNode(node)) {
+            // `parent` has an element child, `child` is a doctype,
+            // or `child` is non-null and a doctype is following `child`.
+            if (!isElementInsertionPossible(parent, child)) {
+                throw new DOMException(HIERARCHY_REQUEST_ERR, 'Only one element can be added and only after doctype');
+            }
+        }
+        // DocumentType
+        if (isDocTypeNode(node)) {
+            // `parent` has a doctype child,
+            if (find(parentChildNodes, isDocTypeNode)) {
+                throw new DOMException(HIERARCHY_REQUEST_ERR, 'Only one doctype is allowed');
+            }
+            var parentElementChild = find(parentChildNodes, isElementNode);
+            // `child` is non-null and an element is preceding `child`,
+            if (child && parentChildNodes.indexOf(parentElementChild) < parentChildNodes.indexOf(child)) {
+                throw new DOMException(HIERARCHY_REQUEST_ERR, 'Doctype can only be inserted before an element');
+            }
+            // or `child` is null and `parent` has an element child.
+            if (!child && parentElementChild) {
+                throw new DOMException(HIERARCHY_REQUEST_ERR, 'Doctype can not be appended since element is present');
+            }
+        }
+    }
+
+    /**
+     * @private
+     * Step 6 of the checks before inserting and before replacing a child are different.
+     *
+     * @param {Document} parent the parent node to insert `node` into
+     * @param {Node} node the node to insert
+     * @param {Node | undefined} child the node that should become the `nextSibling` of `node`
+     * @returns {Node}
+     * @throws DOMException for several node combinations that would create a DOM that is not well-formed.
+     * @throws DOMException if `child` is provided but is not a child of `parent`.
+     * @see https://dom.spec.whatwg.org/#concept-node-ensure-pre-insertion-validity
+     * @see https://dom.spec.whatwg.org/#concept-node-replace
+     */
+    function assertPreReplacementValidityInDocument(parent, node, child) {
+        var parentChildNodes = parent.childNodes || [];
+        var nodeChildNodes = node.childNodes || [];
+
+        // DocumentFragment
+        if (node.nodeType === Node.DOCUMENT_FRAGMENT_NODE) {
+            var nodeChildElements = nodeChildNodes.filter(isElementNode);
+            // If `node` has more than one element child or has a Text node child.
+            if (nodeChildElements.length > 1 || find(nodeChildNodes, isTextNode)) {
+                throw new DOMException(HIERARCHY_REQUEST_ERR, 'More than one element or text in fragment');
+            }
+            // Otherwise, if `node` has one element child and either `parent` has an element child that is not `child` or a doctype is following `child`.
+            if (nodeChildElements.length === 1 && !isElementReplacementPossible(parent, child)) {
+                throw new DOMException(HIERARCHY_REQUEST_ERR, 'Element in fragment can not be inserted before doctype');
+            }
+        }
+        // Element
+        if (isElementNode(node)) {
+            // `parent` has an element child that is not `child` or a doctype is following `child`.
+            if (!isElementReplacementPossible(parent, child)) {
+                throw new DOMException(HIERARCHY_REQUEST_ERR, 'Only one element can be added and only after doctype');
+            }
+        }
+        // DocumentType
+        if (isDocTypeNode(node)) {
+            function hasDoctypeChildThatIsNotChild(node) {
+                return isDocTypeNode(node) && node !== child;
+            }
+
+            // `parent` has a doctype child that is not `child`,
+            if (find(parentChildNodes, hasDoctypeChildThatIsNotChild)) {
+                throw new DOMException(HIERARCHY_REQUEST_ERR, 'Only one doctype is allowed');
+            }
+            var parentElementChild = find(parentChildNodes, isElementNode);
+            // or an element is preceding `child`.
+            if (child && parentChildNodes.indexOf(parentElementChild) < parentChildNodes.indexOf(child)) {
+                throw new DOMException(HIERARCHY_REQUEST_ERR, 'Doctype can only be inserted before an element');
+            }
+        }
+    }
+
+    /**
+     * @private
+     * @param {Node} parent the parent node to insert `node` into
+     * @param {Node} node the node to insert
+     * @param {Node=} child the node that should become the `nextSibling` of `node`
+     * @returns {Node}
+     * @throws DOMException for several node combinations that would create a DOM that is not well-formed.
+     * @throws DOMException if `child` is provided but is not a child of `parent`.
+     * @see https://dom.spec.whatwg.org/#concept-node-ensure-pre-insertion-validity
+     */
+    function _insertBefore(parent, node, child, _inDocumentAssertion) {
+        // To ensure pre-insertion validity of a node into a parent before a child, run these steps:
+        assertPreInsertionValidity1to5(parent, node, child);
+
+        // If parent is a document, and any of the statements below, switched on the interface node implements,
+        // are true, then throw a "HierarchyRequestError" DOMException.
+        if (parent.nodeType === Node.DOCUMENT_NODE) {
+            (_inDocumentAssertion || assertPreInsertionValidityInDocument)(parent, node, child);
+        }
+        var cp = node.parentNode;
+        if (cp) {
+            cp.removeChild(node); //remove and update
+        }
+
+        if (node.nodeType === DOCUMENT_FRAGMENT_NODE) {
+            var newFirst = node.firstChild;
+            if (newFirst == null) {
+                return node;
+            }
+            var newLast = node.lastChild;
+        } else {
+            newFirst = newLast = node;
+        }
+        var pre = child ? child.previousSibling : parent.lastChild;
+        newFirst.previousSibling = pre;
+        newLast.nextSibling = child;
+        if (pre) {
+            pre.nextSibling = newFirst;
+        } else {
+            parent.firstChild = newFirst;
+        }
+        if (child == null) {
+            parent.lastChild = newLast;
+        } else {
+            child.previousSibling = newLast;
+        }
+        do {
+            newFirst.parentNode = parent;
+        } while (newFirst !== newLast && (newFirst = newFirst.nextSibling));
+        _onUpdateChild(parent.ownerDocument || parent, parent);
+        //console.log(parent.lastChild.nextSibling == null)
+        if (node.nodeType == DOCUMENT_FRAGMENT_NODE) {
+            node.firstChild = node.lastChild = null;
+        }
+        return node;
+    }
+
+    /**
+     * Appends `newChild` to `parentNode`.
+     * If `newChild` is already connected to a `parentNode` it is first removed from it.
+     *
+     * @see https://github.com/xmldom/xmldom/issues/135
+     * @see https://github.com/xmldom/xmldom/issues/145
+     * @param {Node} parentNode
+     * @param {Node} newChild
+     * @returns {Node}
+     * @private
+     */
+    function _appendSingleChild(parentNode, newChild) {
+        if (newChild.parentNode) {
+            newChild.parentNode.removeChild(newChild);
+        }
+        newChild.parentNode = parentNode;
+        newChild.previousSibling = parentNode.lastChild;
+        newChild.nextSibling = null;
+        if (newChild.previousSibling) {
+            newChild.previousSibling.nextSibling = newChild;
+        } else {
+            parentNode.firstChild = newChild;
+        }
+        parentNode.lastChild = newChild;
+        _onUpdateChild(parentNode.ownerDocument, parentNode, newChild);
+        return newChild;
+    }
+    Document.prototype = {
+        //implementation : null,
+        nodeName: '#document',
+        nodeType: DOCUMENT_NODE,
+        /**
+         * The DocumentType node of the document.
+         *
+         * @readonly
+         * @type DocumentType
+         */
+        doctype: null,
+        documentElement: null,
+        _inc: 1,
+        insertBefore: function (newChild, refChild) {
+            //raises
+            if (newChild.nodeType == DOCUMENT_FRAGMENT_NODE) {
+                var child = newChild.firstChild;
+                while (child) {
+                    var next = child.nextSibling;
+                    this.insertBefore(child, refChild);
+                    child = next;
+                }
+                return newChild;
+            }
+            _insertBefore(this, newChild, refChild);
+            newChild.ownerDocument = this;
+            if (this.documentElement === null && newChild.nodeType === ELEMENT_NODE) {
+                this.documentElement = newChild;
+            }
+            return newChild;
+        },
+        removeChild: function (oldChild) {
+            if (this.documentElement == oldChild) {
+                this.documentElement = null;
+            }
+            return _removeChild(this, oldChild);
+        },
+        replaceChild: function (newChild, oldChild) {
+            //raises
+            _insertBefore(this, newChild, oldChild, assertPreReplacementValidityInDocument);
+            newChild.ownerDocument = this;
+            if (oldChild) {
+                this.removeChild(oldChild);
+            }
+            if (isElementNode(newChild)) {
+                this.documentElement = newChild;
+            }
+        },
+        // Introduced in DOM Level 2:
+        importNode: function (importedNode, deep) {
+            return importNode(this, importedNode, deep);
+        },
+        // Introduced in DOM Level 2:
+        getElementById: function (id) {
+            var rtv = null;
+            _visitNode(this.documentElement, function (node) {
+                if (node.nodeType == ELEMENT_NODE) {
+                    if (node.getAttribute('id') == id) {
+                        rtv = node;
+                        return true;
+                    }
+                }
+            });
+            return rtv;
+        },
+        /**
+         * The `getElementsByClassName` method of `Document` interface returns an array-like object
+         * of all child elements which have **all** of the given class name(s).
+         *
+         * Returns an empty list if `classeNames` is an empty string or only contains HTML white space characters.
+         *
+         *
+         * Warning: This is a live LiveNodeList.
+         * Changes in the DOM will reflect in the array as the changes occur.
+         * If an element selected by this array no longer qualifies for the selector,
+         * it will automatically be removed. Be aware of this for iteration purposes.
+         *
+         * @param {string} classNames is a string representing the class name(s) to match; multiple class names are separated by (ASCII-)whitespace
+         *
+         * @see https://developer.mozilla.org/en-US/docs/Web/API/Document/getElementsByClassName
+         * @see https://dom.spec.whatwg.org/#concept-getelementsbyclassname
+         */
+        getElementsByClassName: function (classNames) {
+            var classNamesSet = toOrderedSet(classNames);
+            return new LiveNodeList(this, function (base) {
+                var ls = [];
+                if (classNamesSet.length > 0) {
+                    _visitNode(base.documentElement, function (node) {
+                        if (node !== base && node.nodeType === ELEMENT_NODE) {
+                            var nodeClassNames = node.getAttribute('class');
+                            // can be null if the attribute does not exist
+                            if (nodeClassNames) {
+                                // before splitting and iterating just compare them for the most common case
+                                var matches = classNames === nodeClassNames;
+                                if (!matches) {
+                                    var nodeClassNamesSet = toOrderedSet(nodeClassNames);
+                                    matches = classNamesSet.every(arrayIncludes(nodeClassNamesSet));
+                                }
+                                if (matches) {
+                                    ls.push(node);
+                                }
+                            }
+                        }
+                    });
+                }
+                return ls;
+            });
+        },
+        //document factory method:
+        createElement: function (tagName) {
+            var node = new Element();
+            node.ownerDocument = this;
+            node.nodeName = tagName;
+            node.tagName = tagName;
+            node.localName = tagName;
+            node.childNodes = new NodeList();
+            var attrs = node.attributes = new NamedNodeMap();
+            attrs._ownerElement = node;
+            return node;
+        },
+        createDocumentFragment: function () {
+            var node = new DocumentFragment();
+            node.ownerDocument = this;
+            node.childNodes = new NodeList();
+            return node;
+        },
+        createTextNode: function (data) {
+            var node = new Text();
+            node.ownerDocument = this;
+            node.appendData(data);
+            return node;
+        },
+        createComment: function (data) {
+            var node = new Comment();
+            node.ownerDocument = this;
+            node.appendData(data);
+            return node;
+        },
+        createCDATASection: function (data) {
+            var node = new CDATASection();
+            node.ownerDocument = this;
+            node.appendData(data);
+            return node;
+        },
+        createProcessingInstruction: function (target, data) {
+            var node = new ProcessingInstruction();
+            node.ownerDocument = this;
+            node.tagName = node.target = target;
+            node.nodeValue = node.data = data;
+            return node;
+        },
+        createAttribute: function (name) {
+            var node = new Attr();
+            node.ownerDocument = this;
+            node.name = name;
+            node.nodeName = name;
+            node.localName = name;
+            node.specified = true;
+            return node;
+        },
+        createEntityReference: function (name) {
+            var node = new EntityReference();
+            node.ownerDocument = this;
+            node.nodeName = name;
+            return node;
+        },
+        // Introduced in DOM Level 2:
+        createElementNS: function (namespaceURI, qualifiedName) {
+            var node = new Element();
+            var pl = qualifiedName.split(':');
+            var attrs = node.attributes = new NamedNodeMap();
+            node.childNodes = new NodeList();
+            node.ownerDocument = this;
+            node.nodeName = qualifiedName;
+            node.tagName = qualifiedName;
+            node.namespaceURI = namespaceURI;
+            if (pl.length == 2) {
+                node.prefix = pl[0];
+                node.localName = pl[1];
+            } else {
+                //el.prefix = null;
+                node.localName = qualifiedName;
+            }
+            attrs._ownerElement = node;
+            return node;
+        },
+        // Introduced in DOM Level 2:
+        createAttributeNS: function (namespaceURI, qualifiedName) {
+            var node = new Attr();
+            var pl = qualifiedName.split(':');
+            node.ownerDocument = this;
+            node.nodeName = qualifiedName;
+            node.name = qualifiedName;
+            node.namespaceURI = namespaceURI;
+            node.specified = true;
+            if (pl.length == 2) {
+                node.prefix = pl[0];
+                node.localName = pl[1];
+            } else {
+                //el.prefix = null;
+                node.localName = qualifiedName;
+            }
+            return node;
+        }
+    };
+    _extends(Document, Node);
+    function Element() {
+        this._nsMap = {};
+    }
+    Element.prototype = {
+        nodeType: ELEMENT_NODE,
+        hasAttribute: function (name) {
+            return this.getAttributeNode(name) != null;
+        },
+        getAttribute: function (name) {
+            var attr = this.getAttributeNode(name);
+            return attr && attr.value || '';
+        },
+        getAttributeNode: function (name) {
+            return this.attributes.getNamedItem(name);
+        },
+        setAttribute: function (name, value) {
+            var attr = this.ownerDocument.createAttribute(name);
+            attr.value = attr.nodeValue = "" + value;
+            this.setAttributeNode(attr);
+        },
+        removeAttribute: function (name) {
+            var attr = this.getAttributeNode(name);
+            attr && this.removeAttributeNode(attr);
+        },
+        //four real opeartion method
+        appendChild: function (newChild) {
+            if (newChild.nodeType === DOCUMENT_FRAGMENT_NODE) {
+                return this.insertBefore(newChild, null);
+            } else {
+                return _appendSingleChild(this, newChild);
+            }
+        },
+        setAttributeNode: function (newAttr) {
+            return this.attributes.setNamedItem(newAttr);
+        },
+        setAttributeNodeNS: function (newAttr) {
+            return this.attributes.setNamedItemNS(newAttr);
+        },
+        removeAttributeNode: function (oldAttr) {
+            //console.log(this == oldAttr.ownerElement)
+            return this.attributes.removeNamedItem(oldAttr.nodeName);
+        },
+        //get real attribute name,and remove it by removeAttributeNode
+        removeAttributeNS: function (namespaceURI, localName) {
+            var old = this.getAttributeNodeNS(namespaceURI, localName);
+            old && this.removeAttributeNode(old);
+        },
+        hasAttributeNS: function (namespaceURI, localName) {
+            return this.getAttributeNodeNS(namespaceURI, localName) != null;
+        },
+        getAttributeNS: function (namespaceURI, localName) {
+            var attr = this.getAttributeNodeNS(namespaceURI, localName);
+            return attr && attr.value || '';
+        },
+        setAttributeNS: function (namespaceURI, qualifiedName, value) {
+            var attr = this.ownerDocument.createAttributeNS(namespaceURI, qualifiedName);
+            attr.value = attr.nodeValue = "" + value;
+            this.setAttributeNode(attr);
+        },
+        getAttributeNodeNS: function (namespaceURI, localName) {
+            return this.attributes.getNamedItemNS(namespaceURI, localName);
+        },
+        getElementsByTagName: function (tagName) {
+            return new LiveNodeList(this, function (base) {
+                var ls = [];
+                _visitNode(base, function (node) {
+                    if (node !== base && node.nodeType == ELEMENT_NODE && (tagName === '*' || node.tagName == tagName)) {
+                        ls.push(node);
+                    }
+                });
+                return ls;
+            });
+        },
+        getElementsByTagNameNS: function (namespaceURI, localName) {
+            return new LiveNodeList(this, function (base) {
+                var ls = [];
+                _visitNode(base, function (node) {
+                    if (node !== base && node.nodeType === ELEMENT_NODE && (namespaceURI === '*' || node.namespaceURI === namespaceURI) && (localName === '*' || node.localName == localName)) {
+                        ls.push(node);
+                    }
+                });
+                return ls;
+            });
+        }
+    };
+    Document.prototype.getElementsByTagName = Element.prototype.getElementsByTagName;
+    Document.prototype.getElementsByTagNameNS = Element.prototype.getElementsByTagNameNS;
+    _extends(Element, Node);
+    function Attr() {}
+    Attr.prototype.nodeType = ATTRIBUTE_NODE;
+    _extends(Attr, Node);
+    function CharacterData() {}
+    CharacterData.prototype = {
+        data: '',
+        substringData: function (offset, count) {
+            return this.data.substring(offset, offset + count);
+        },
+        appendData: function (text) {
+            text = this.data + text;
+            this.nodeValue = this.data = text;
+            this.length = text.length;
+        },
+        insertData: function (offset, text) {
+            this.replaceData(offset, 0, text);
+        },
+        appendChild: function (newChild) {
+            throw new Error(ExceptionMessage[HIERARCHY_REQUEST_ERR]);
+        },
+        deleteData: function (offset, count) {
+            this.replaceData(offset, count, "");
+        },
+        replaceData: function (offset, count, text) {
+            var start = this.data.substring(0, offset);
+            var end = this.data.substring(offset + count);
+            text = start + text + end;
+            this.nodeValue = this.data = text;
+            this.length = text.length;
+        }
+    };
+    _extends(CharacterData, Node);
+    function Text() {}
+    Text.prototype = {
+        nodeName: "#text",
+        nodeType: TEXT_NODE,
+        splitText: function (offset) {
+            var text = this.data;
+            var newText = text.substring(offset);
+            text = text.substring(0, offset);
+            this.data = this.nodeValue = text;
+            this.length = text.length;
+            var newNode = this.ownerDocument.createTextNode(newText);
+            if (this.parentNode) {
+                this.parentNode.insertBefore(newNode, this.nextSibling);
+            }
+            return newNode;
+        }
+    };
+    _extends(Text, CharacterData);
+    function Comment() {}
+    Comment.prototype = {
+        nodeName: "#comment",
+        nodeType: COMMENT_NODE
+    };
+    _extends(Comment, CharacterData);
+    function CDATASection() {}
+    CDATASection.prototype = {
+        nodeName: "#cdata-section",
+        nodeType: CDATA_SECTION_NODE
+    };
+    _extends(CDATASection, CharacterData);
+    function DocumentType() {}
+    DocumentType.prototype.nodeType = DOCUMENT_TYPE_NODE;
+    _extends(DocumentType, Node);
+    function Notation() {}
+    Notation.prototype.nodeType = NOTATION_NODE;
+    _extends(Notation, Node);
+    function Entity() {}
+    Entity.prototype.nodeType = ENTITY_NODE;
+    _extends(Entity, Node);
+    function EntityReference() {}
+    EntityReference.prototype.nodeType = ENTITY_REFERENCE_NODE;
+    _extends(EntityReference, Node);
+    function DocumentFragment() {}
+    DocumentFragment.prototype.nodeName = "#document-fragment";
+    DocumentFragment.prototype.nodeType = DOCUMENT_FRAGMENT_NODE;
+    _extends(DocumentFragment, Node);
+    function ProcessingInstruction() {}
+    ProcessingInstruction.prototype.nodeType = PROCESSING_INSTRUCTION_NODE;
+    _extends(ProcessingInstruction, Node);
+    function XMLSerializer() {}
+    XMLSerializer.prototype.serializeToString = function (node, isHtml, nodeFilter) {
+        return nodeSerializeToString.call(node, isHtml, nodeFilter);
+    };
+    Node.prototype.toString = nodeSerializeToString;
+    function nodeSerializeToString(isHtml, nodeFilter) {
+        var buf = [];
+        var refNode = this.nodeType == 9 && this.documentElement || this;
+        var prefix = refNode.prefix;
+        var uri = refNode.namespaceURI;
+        if (uri && prefix == null) {
+            //console.log(prefix)
+            var prefix = refNode.lookupPrefix(uri);
+            if (prefix == null) {
+                //isHTML = true;
+                var visibleNamespaces = [{
+                    namespace: uri,
+                    prefix: null
+                }
+                    //{namespace:uri,prefix:''}
+                ];
+            }
+        }
+
+        serializeToString(this, buf, isHtml, nodeFilter, visibleNamespaces);
+        //console.log('###',this.nodeType,uri,prefix,buf.join(''))
+        return buf.join('');
+    }
+    function needNamespaceDefine(node, isHTML, visibleNamespaces) {
+        var prefix = node.prefix || '';
+        var uri = node.namespaceURI;
+        // According to [Namespaces in XML 1.0](https://www.w3.org/TR/REC-xml-names/#ns-using) ,
+        // and more specifically https://www.w3.org/TR/REC-xml-names/#nsc-NoPrefixUndecl :
+        // > In a namespace declaration for a prefix [...], the attribute value MUST NOT be empty.
+        // in a similar manner [Namespaces in XML 1.1](https://www.w3.org/TR/xml-names11/#ns-using)
+        // and more specifically https://www.w3.org/TR/xml-names11/#nsc-NSDeclared :
+        // > [...] Furthermore, the attribute value [...] must not be an empty string.
+        // so serializing empty namespace value like xmlns:ds="" would produce an invalid XML document.
+        if (!uri) {
+            return false;
+        }
+        if (prefix === "xml" && uri === NAMESPACE$2.XML || uri === NAMESPACE$2.XMLNS) {
+            return false;
+        }
+        var i = visibleNamespaces.length;
+        while (i--) {
+            var ns = visibleNamespaces[i];
+            // get namespace prefix
+            if (ns.prefix === prefix) {
+                return ns.namespace !== uri;
+            }
+        }
+        return true;
+    }
+    /**
+     * Well-formed constraint: No < in Attribute Values
+     * > The replacement text of any entity referred to directly or indirectly
+     * > in an attribute value must not contain a <.
+     * @see https://www.w3.org/TR/xml11/#CleanAttrVals
+     * @see https://www.w3.org/TR/xml11/#NT-AttValue
+     *
+     * Literal whitespace other than space that appear in attribute values
+     * are serialized as their entity references, so they will be preserved.
+     * (In contrast to whitespace literals in the input which are normalized to spaces)
+     * @see https://www.w3.org/TR/xml11/#AVNormalize
+     * @see https://w3c.github.io/DOM-Parsing/#serializing-an-element-s-attributes
+     */
+    function addSerializedAttribute(buf, qualifiedName, value) {
+        buf.push(' ', qualifiedName, '="', value.replace(/[<>&"\t\n\r]/g, _xmlEncoder), '"');
+    }
+    function serializeToString(node, buf, isHTML, nodeFilter, visibleNamespaces) {
+        if (!visibleNamespaces) {
+            visibleNamespaces = [];
+        }
+        if (nodeFilter) {
+            node = nodeFilter(node);
+            if (node) {
+                if (typeof node == 'string') {
+                    buf.push(node);
+                    return;
+                }
+            } else {
+                return;
+            }
+            //buf.sort.apply(attrs, attributeSorter);
+        }
+
+        switch (node.nodeType) {
+            case ELEMENT_NODE:
+                var attrs = node.attributes;
+                var len = attrs.length;
+                var child = node.firstChild;
+                var nodeName = node.tagName;
+                isHTML = NAMESPACE$2.isHTML(node.namespaceURI) || isHTML;
+                var prefixedNodeName = nodeName;
+                if (!isHTML && !node.prefix && node.namespaceURI) {
+                    var defaultNS;
+                    // lookup current default ns from `xmlns` attribute
+                    for (var ai = 0; ai < attrs.length; ai++) {
+                        if (attrs.item(ai).name === 'xmlns') {
+                            defaultNS = attrs.item(ai).value;
+                            break;
+                        }
+                    }
+                    if (!defaultNS) {
+                        // lookup current default ns in visibleNamespaces
+                        for (var nsi = visibleNamespaces.length - 1; nsi >= 0; nsi--) {
+                            var namespace = visibleNamespaces[nsi];
+                            if (namespace.prefix === '' && namespace.namespace === node.namespaceURI) {
+                                defaultNS = namespace.namespace;
+                                break;
+                            }
+                        }
+                    }
+                    if (defaultNS !== node.namespaceURI) {
+                        for (var nsi = visibleNamespaces.length - 1; nsi >= 0; nsi--) {
+                            var namespace = visibleNamespaces[nsi];
+                            if (namespace.namespace === node.namespaceURI) {
+                                if (namespace.prefix) {
+                                    prefixedNodeName = namespace.prefix + ':' + nodeName;
+                                }
+                                break;
+                            }
+                        }
+                    }
+                }
+                buf.push('<', prefixedNodeName);
+                for (var i = 0; i < len; i++) {
+                    // add namespaces for attributes
+                    var attr = attrs.item(i);
+                    if (attr.prefix == 'xmlns') {
+                        visibleNamespaces.push({
+                            prefix: attr.localName,
+                            namespace: attr.value
+                        });
+                    } else if (attr.nodeName == 'xmlns') {
+                        visibleNamespaces.push({
+                            prefix: '',
+                            namespace: attr.value
+                        });
+                    }
+                }
+                for (var i = 0; i < len; i++) {
+                    var attr = attrs.item(i);
+                    if (needNamespaceDefine(attr, isHTML, visibleNamespaces)) {
+                        var prefix = attr.prefix || '';
+                        var uri = attr.namespaceURI;
+                        addSerializedAttribute(buf, prefix ? 'xmlns:' + prefix : "xmlns", uri);
+                        visibleNamespaces.push({
+                            prefix: prefix,
+                            namespace: uri
+                        });
+                    }
+                    serializeToString(attr, buf, isHTML, nodeFilter, visibleNamespaces);
+                }
+
+                // add namespace for current node
+                if (nodeName === prefixedNodeName && needNamespaceDefine(node, isHTML, visibleNamespaces)) {
+                    var prefix = node.prefix || '';
+                    var uri = node.namespaceURI;
+                    addSerializedAttribute(buf, prefix ? 'xmlns:' + prefix : "xmlns", uri);
+                    visibleNamespaces.push({
+                        prefix: prefix,
+                        namespace: uri
+                    });
+                }
+                if (child || isHTML && !/^(?:meta|link|img|br|hr|input)$/i.test(nodeName)) {
+                    buf.push('>');
+                    //if is cdata child node
+                    if (isHTML && /^script$/i.test(nodeName)) {
+                        while (child) {
+                            if (child.data) {
+                                buf.push(child.data);
+                            } else {
+                                serializeToString(child, buf, isHTML, nodeFilter, visibleNamespaces.slice());
+                            }
+                            child = child.nextSibling;
+                        }
+                    } else {
+                        while (child) {
+                            serializeToString(child, buf, isHTML, nodeFilter, visibleNamespaces.slice());
+                            child = child.nextSibling;
+                        }
+                    }
+                    buf.push('</', prefixedNodeName, '>');
+                } else {
+                    buf.push('/>');
+                }
+                // remove added visible namespaces
+                //visibleNamespaces.length = startVisibleNamespaces;
+                return;
+            case DOCUMENT_NODE:
+            case DOCUMENT_FRAGMENT_NODE:
+                var child = node.firstChild;
+                while (child) {
+                    serializeToString(child, buf, isHTML, nodeFilter, visibleNamespaces.slice());
+                    child = child.nextSibling;
+                }
+                return;
+            case ATTRIBUTE_NODE:
+                return addSerializedAttribute(buf, node.name, node.value);
+            case TEXT_NODE:
+                /**
+                 * The ampersand character (&) and the left angle bracket (<) must not appear in their literal form,
+                 * except when used as markup delimiters, or within a comment, a processing instruction, or a CDATA section.
+                 * If they are needed elsewhere, they must be escaped using either numeric character references or the strings
+                 * `&amp;` and `&lt;` respectively.
+                 * The right angle bracket (>) may be represented using the string " &gt; ", and must, for compatibility,
+                 * be escaped using either `&gt;` or a character reference when it appears in the string `]]>` in content,
+                 * when that string is not marking the end of a CDATA section.
+                 *
+                 * In the content of elements, character data is any string of characters
+                 * which does not contain the start-delimiter of any markup
+                 * and does not include the CDATA-section-close delimiter, `]]>`.
+                 *
+                 * @see https://www.w3.org/TR/xml/#NT-CharData
+                 * @see https://w3c.github.io/DOM-Parsing/#xml-serializing-a-text-node
+                 */
+                return buf.push(node.data.replace(/[<&>]/g, _xmlEncoder));
+            case CDATA_SECTION_NODE:
+                return buf.push('<![CDATA[', node.data, ']]>');
+            case COMMENT_NODE:
+                return buf.push("<!--", node.data, "-->");
+            case DOCUMENT_TYPE_NODE:
+                var pubid = node.publicId;
+                var sysid = node.systemId;
+                buf.push('<!DOCTYPE ', node.name);
+                if (pubid) {
+                    buf.push(' PUBLIC ', pubid);
+                    if (sysid && sysid != '.') {
+                        buf.push(' ', sysid);
+                    }
+                    buf.push('>');
+                } else if (sysid && sysid != '.') {
+                    buf.push(' SYSTEM ', sysid, '>');
+                } else {
+                    var sub = node.internalSubset;
+                    if (sub) {
+                        buf.push(" [", sub, "]");
+                    }
+                    buf.push(">");
+                }
+                return;
+            case PROCESSING_INSTRUCTION_NODE:
+                return buf.push("<?", node.target, " ", node.data, "?>");
+            case ENTITY_REFERENCE_NODE:
+                return buf.push('&', node.nodeName, ';');
+            //case ENTITY_NODE:
+            //case NOTATION_NODE:
+            default:
+                buf.push('??', node.nodeName);
+        }
+    }
+    function importNode(doc, node, deep) {
+        var node2;
+        switch (node.nodeType) {
+            case ELEMENT_NODE:
+                node2 = node.cloneNode(false);
+                node2.ownerDocument = doc;
+            //var attrs = node2.attributes;
+            //var len = attrs.length;
+            //for(var i=0;i<len;i++){
+            //node2.setAttributeNodeNS(importNode(doc,attrs.item(i),deep));
+            //}
+            case DOCUMENT_FRAGMENT_NODE:
+                break;
+            case ATTRIBUTE_NODE:
+                deep = true;
+                break;
+            //case ENTITY_REFERENCE_NODE:
+            //case PROCESSING_INSTRUCTION_NODE:
+            ////case TEXT_NODE:
+            //case CDATA_SECTION_NODE:
+            //case COMMENT_NODE:
+            //	deep = false;
+            //	break;
+            //case DOCUMENT_NODE:
+            //case DOCUMENT_TYPE_NODE:
+            //cannot be imported.
+            //case ENTITY_NODE:
+            //case NOTATION_NODE：
+            //can not hit in level3
+            //default:throw e;
+        }
+
+        if (!node2) {
+            node2 = node.cloneNode(false); //false
+        }
+
+        node2.ownerDocument = doc;
+        node2.parentNode = null;
+        if (deep) {
+            var child = node.firstChild;
+            while (child) {
+                node2.appendChild(importNode(doc, child, deep));
+                child = child.nextSibling;
+            }
+        }
+        return node2;
+    }
+    //
+    //var _relationMap = {firstChild:1,lastChild:1,previousSibling:1,nextSibling:1,
+    //					attributes:1,childNodes:1,parentNode:1,documentElement:1,doctype,};
+    function cloneNode(doc, node, deep) {
+        var node2 = new node.constructor();
+        for (var n in node) {
+            if (Object.prototype.hasOwnProperty.call(node, n)) {
+                var v = node[n];
+                if (typeof v != "object") {
+                    if (v != node2[n]) {
+                        node2[n] = v;
+                    }
+                }
+            }
+        }
+        if (node.childNodes) {
+            node2.childNodes = new NodeList();
+        }
+        node2.ownerDocument = doc;
+        switch (node2.nodeType) {
+            case ELEMENT_NODE:
+                var attrs = node.attributes;
+                var attrs2 = node2.attributes = new NamedNodeMap();
+                var len = attrs.length;
+                attrs2._ownerElement = node2;
+                for (var i = 0; i < len; i++) {
+                    node2.setAttributeNode(cloneNode(doc, attrs.item(i), true));
+                }
+                break;
+            case ATTRIBUTE_NODE:
+                deep = true;
+        }
+        if (deep) {
+            var child = node.firstChild;
+            while (child) {
+                node2.appendChild(cloneNode(doc, child, deep));
+                child = child.nextSibling;
+            }
+        }
+        return node2;
+    }
+    function __set__(object, key, value) {
+        object[key] = value;
+    }
+    //do dynamic
+    try {
+        if (Object.defineProperty) {
+            Object.defineProperty(LiveNodeList.prototype, 'length', {
+                get: function () {
+                    _updateLiveList(this);
+                    return this.$$length;
+                }
+            });
+            Object.defineProperty(Node.prototype, 'textContent', {
+                get: function () {
+                    return getTextContent(this);
+                },
+                set: function (data) {
+                    switch (this.nodeType) {
+                        case ELEMENT_NODE:
+                        case DOCUMENT_FRAGMENT_NODE:
+                            while (this.firstChild) {
+                                this.removeChild(this.firstChild);
+                            }
+                            if (data || String(data)) {
+                                this.appendChild(this.ownerDocument.createTextNode(data));
+                            }
+                            break;
+                        default:
+                            this.data = data;
+                            this.value = data;
+                            this.nodeValue = data;
+                    }
+                }
+            });
+            function getTextContent(node) {
+                switch (node.nodeType) {
+                    case ELEMENT_NODE:
+                    case DOCUMENT_FRAGMENT_NODE:
+                        var buf = [];
+                        node = node.firstChild;
+                        while (node) {
+                            if (node.nodeType !== 7 && node.nodeType !== 8) {
+                                buf.push(getTextContent(node));
+                            }
+                            node = node.nextSibling;
+                        }
+                        return buf.join('');
+                    default:
+                        return node.nodeValue;
+                }
+            }
+            __set__ = function (object, key, value) {
+                //console.log(value)
+                object['$$' + key] = value;
+            };
+        }
+    } catch (e) {//ie8
+    }
+
+    //if(typeof require == 'function'){
+    var DocumentType_1 = DocumentType;
+    var DOMException_1 = DOMException;
+    var DOMImplementation_1 = DOMImplementation$1;
+    var Element_1 = Element;
+    var Node_1 = Node;
+    var NodeList_1 = NodeList;
+    var XMLSerializer_1 = XMLSerializer;
+    //}
+
+    var dom = {
+        DocumentType: DocumentType_1,
+        DOMException: DOMException_1,
+        DOMImplementation: DOMImplementation_1,
+        Element: Element_1,
+        Node: Node_1,
+        NodeList: NodeList_1,
+        XMLSerializer: XMLSerializer_1
+    };
+
+    var entities = createCommonjsModule(function (module, exports) {
+        var freeze = conventions.freeze;
+
+        /**
+         * The entities that are predefined in every XML document.
+         *
+         * @see https://www.w3.org/TR/2006/REC-xml11-20060816/#sec-predefined-ent W3C XML 1.1
+         * @see https://www.w3.org/TR/2008/REC-xml-20081126/#sec-predefined-ent W3C XML 1.0
+         * @see https://en.wikipedia.org/wiki/List_of_XML_and_HTML_character_entity_references#Predefined_entities_in_XML Wikipedia
+         */
+        exports.XML_ENTITIES = freeze({
+            amp: '&',
+            apos: "'",
+            gt: '>',
+            lt: '<',
+            quot: '"'
+        });
+
+        /**
+         * A map of currently 241 entities that are detected in an HTML document.
+         * They contain all entries from `XML_ENTITIES`.
+         *
+         * @see XML_ENTITIES
+         * @see DOMParser.parseFromString
+         * @see DOMImplementation.prototype.createHTMLDocument
+         * @see https://html.spec.whatwg.org/#named-character-references WHATWG HTML(5) Spec
+         * @see https://www.w3.org/TR/xml-entity-names/ W3C XML Entity Names
+         * @see https://www.w3.org/TR/html4/sgml/entities.html W3C HTML4/SGML
+         * @see https://en.wikipedia.org/wiki/List_of_XML_and_HTML_character_entity_references#Character_entity_references_in_HTML Wikipedia (HTML)
+         * @see https://en.wikipedia.org/wiki/List_of_XML_and_HTML_character_entity_references#Entities_representing_special_characters_in_XHTML Wikpedia (XHTML)
+         */
+        exports.HTML_ENTITIES = freeze({
+            lt: '<',
+            gt: '>',
+            amp: '&',
+            quot: '"',
+            apos: "'",
+            Agrave: "À",
+            Aacute: "Á",
+            Acirc: "Â",
+            Atilde: "Ã",
+            Auml: "Ä",
+            Aring: "Å",
+            AElig: "Æ",
+            Ccedil: "Ç",
+            Egrave: "È",
+            Eacute: "É",
+            Ecirc: "Ê",
+            Euml: "Ë",
+            Igrave: "Ì",
+            Iacute: "Í",
+            Icirc: "Î",
+            Iuml: "Ï",
+            ETH: "Ð",
+            Ntilde: "Ñ",
+            Ograve: "Ò",
+            Oacute: "Ó",
+            Ocirc: "Ô",
+            Otilde: "Õ",
+            Ouml: "Ö",
+            Oslash: "Ø",
+            Ugrave: "Ù",
+            Uacute: "Ú",
+            Ucirc: "Û",
+            Uuml: "Ü",
+            Yacute: "Ý",
+            THORN: "Þ",
+            szlig: "ß",
+            agrave: "à",
+            aacute: "á",
+            acirc: "â",
+            atilde: "ã",
+            auml: "ä",
+            aring: "å",
+            aelig: "æ",
+            ccedil: "ç",
+            egrave: "è",
+            eacute: "é",
+            ecirc: "ê",
+            euml: "ë",
+            igrave: "ì",
+            iacute: "í",
+            icirc: "î",
+            iuml: "ï",
+            eth: "ð",
+            ntilde: "ñ",
+            ograve: "ò",
+            oacute: "ó",
+            ocirc: "ô",
+            otilde: "õ",
+            ouml: "ö",
+            oslash: "ø",
+            ugrave: "ù",
+            uacute: "ú",
+            ucirc: "û",
+            uuml: "ü",
+            yacute: "ý",
+            thorn: "þ",
+            yuml: "ÿ",
+            nbsp: "\u00a0",
+            iexcl: "¡",
+            cent: "¢",
+            pound: "£",
+            curren: "¤",
+            yen: "¥",
+            brvbar: "¦",
+            sect: "§",
+            uml: "¨",
+            copy: "©",
+            ordf: "ª",
+            laquo: "«",
+            not: "¬",
+            shy: "­­",
+            reg: "®",
+            macr: "¯",
+            deg: "°",
+            plusmn: "±",
+            sup2: "²",
+            sup3: "³",
+            acute: "´",
+            micro: "µ",
+            para: "¶",
+            middot: "·",
+            cedil: "¸",
+            sup1: "¹",
+            ordm: "º",
+            raquo: "»",
+            frac14: "¼",
+            frac12: "½",
+            frac34: "¾",
+            iquest: "¿",
+            times: "×",
+            divide: "÷",
+            forall: "∀",
+            part: "∂",
+            exist: "∃",
+            empty: "∅",
+            nabla: "∇",
+            isin: "∈",
+            notin: "∉",
+            ni: "∋",
+            prod: "∏",
+            sum: "∑",
+            minus: "−",
+            lowast: "∗",
+            radic: "√",
+            prop: "∝",
+            infin: "∞",
+            ang: "∠",
+            and: "∧",
+            or: "∨",
+            cap: "∩",
+            cup: "∪",
+            'int': "∫",
+            there4: "∴",
+            sim: "∼",
+            cong: "≅",
+            asymp: "≈",
+            ne: "≠",
+            equiv: "≡",
+            le: "≤",
+            ge: "≥",
+            sub: "⊂",
+            sup: "⊃",
+            nsub: "⊄",
+            sube: "⊆",
+            supe: "⊇",
+            oplus: "⊕",
+            otimes: "⊗",
+            perp: "⊥",
+            sdot: "⋅",
+            Alpha: "Α",
+            Beta: "Β",
+            Gamma: "Γ",
+            Delta: "Δ",
+            Epsilon: "Ε",
+            Zeta: "Ζ",
+            Eta: "Η",
+            Theta: "Θ",
+            Iota: "Ι",
+            Kappa: "Κ",
+            Lambda: "Λ",
+            Mu: "Μ",
+            Nu: "Ν",
+            Xi: "Ξ",
+            Omicron: "Ο",
+            Pi: "Π",
+            Rho: "Ρ",
+            Sigma: "Σ",
+            Tau: "Τ",
+            Upsilon: "Υ",
+            Phi: "Φ",
+            Chi: "Χ",
+            Psi: "Ψ",
+            Omega: "Ω",
+            alpha: "α",
+            beta: "β",
+            gamma: "γ",
+            delta: "δ",
+            epsilon: "ε",
+            zeta: "ζ",
+            eta: "η",
+            theta: "θ",
+            iota: "ι",
+            kappa: "κ",
+            lambda: "λ",
+            mu: "μ",
+            nu: "ν",
+            xi: "ξ",
+            omicron: "ο",
+            pi: "π",
+            rho: "ρ",
+            sigmaf: "ς",
+            sigma: "σ",
+            tau: "τ",
+            upsilon: "υ",
+            phi: "φ",
+            chi: "χ",
+            psi: "ψ",
+            omega: "ω",
+            thetasym: "ϑ",
+            upsih: "ϒ",
+            piv: "ϖ",
+            OElig: "Œ",
+            oelig: "œ",
+            Scaron: "Š",
+            scaron: "š",
+            Yuml: "Ÿ",
+            fnof: "ƒ",
+            circ: "ˆ",
+            tilde: "˜",
+            ensp: " ",
+            emsp: " ",
+            thinsp: " ",
+            zwnj: "‌",
+            zwj: "‍",
+            lrm: "‎",
+            rlm: "‏",
+            ndash: "–",
+            mdash: "—",
+            lsquo: "‘",
+            rsquo: "’",
+            sbquo: "‚",
+            ldquo: "“",
+            rdquo: "”",
+            bdquo: "„",
+            dagger: "†",
+            Dagger: "‡",
+            bull: "•",
+            hellip: "…",
+            permil: "‰",
+            prime: "′",
+            Prime: "″",
+            lsaquo: "‹",
+            rsaquo: "›",
+            oline: "‾",
+            euro: "€",
+            trade: "™",
+            larr: "←",
+            uarr: "↑",
+            rarr: "→",
+            darr: "↓",
+            harr: "↔",
+            crarr: "↵",
+            lceil: "⌈",
+            rceil: "⌉",
+            lfloor: "⌊",
+            rfloor: "⌋",
+            loz: "◊",
+            spades: "♠",
+            clubs: "♣",
+            hearts: "♥",
+            diams: "♦"
+        });
+
+        /**
+         * @deprecated use `HTML_ENTITIES` instead
+         * @see HTML_ENTITIES
+         */
+        exports.entityMap = exports.HTML_ENTITIES;
+    });
+    entities.XML_ENTITIES;
+    entities.HTML_ENTITIES;
+    entities.entityMap;
+
+    var NAMESPACE$1 = conventions.NAMESPACE;
+
+    //[4]   	NameStartChar	   ::=   	":" | [A-Z] | "_" | [a-z] | [#xC0-#xD6] | [#xD8-#xF6] | [#xF8-#x2FF] | [#x370-#x37D] | [#x37F-#x1FFF] | [#x200C-#x200D] | [#x2070-#x218F] | [#x2C00-#x2FEF] | [#x3001-#xD7FF] | [#xF900-#xFDCF] | [#xFDF0-#xFFFD] | [#x10000-#xEFFFF]
+    //[4a]   	NameChar	   ::=   	NameStartChar | "-" | "." | [0-9] | #xB7 | [#x0300-#x036F] | [#x203F-#x2040]
+    //[5]   	Name	   ::=   	NameStartChar (NameChar)*
+    var nameStartChar = /[A-Z_a-z\xC0-\xD6\xD8-\xF6\u00F8-\u02FF\u0370-\u037D\u037F-\u1FFF\u200C-\u200D\u2070-\u218F\u2C00-\u2FEF\u3001-\uD7FF\uF900-\uFDCF\uFDF0-\uFFFD]/; //\u10000-\uEFFFF
+    var nameChar = new RegExp("[\\-\\.0-9" + nameStartChar.source.slice(1, -1) + "\\u00B7\\u0300-\\u036F\\u203F-\\u2040]");
+    var tagNamePattern = new RegExp('^' + nameStartChar.source + nameChar.source + '*(?:\:' + nameStartChar.source + nameChar.source + '*)?$');
+    //var tagNamePattern = /^[a-zA-Z_][\w\-\.]*(?:\:[a-zA-Z_][\w\-\.]*)?$/
+    //var handlers = 'resolveEntity,getExternalSubset,characters,endDocument,endElement,endPrefixMapping,ignorableWhitespace,processingInstruction,setDocumentLocator,skippedEntity,startDocument,startElement,startPrefixMapping,notationDecl,unparsedEntityDecl,error,fatalError,warning,attributeDecl,elementDecl,externalEntityDecl,internalEntityDecl,comment,endCDATA,endDTD,endEntity,startCDATA,startDTD,startEntity'.split(',')
+
+    //S_TAG,	S_ATTR,	S_EQ,	S_ATTR_NOQUOT_VALUE
+    //S_ATTR_SPACE,	S_ATTR_END,	S_TAG_SPACE, S_TAG_CLOSE
+    var S_TAG = 0; //tag name offerring
+    var S_ATTR = 1; //attr name offerring
+    var S_ATTR_SPACE = 2; //attr name end and space offer
+    var S_EQ = 3; //=space?
+    var S_ATTR_NOQUOT_VALUE = 4; //attr value(no quot value only)
+    var S_ATTR_END = 5; //attr value end and no space(quot end)
+    var S_TAG_SPACE = 6; //(attr value end || tag end ) && (space offer)
+    var S_TAG_CLOSE = 7; //closed el<el />
+
+    /**
+     * Creates an error that will not be caught by XMLReader aka the SAX parser.
+     *
+     * @param {string} message
+     * @param {any?} locator Optional, can provide details about the location in the source
+     * @constructor
+     */
+    function ParseError$1(message, locator) {
+        this.message = message;
+        this.locator = locator;
+        if (Error.captureStackTrace) Error.captureStackTrace(this, ParseError$1);
+    }
+    ParseError$1.prototype = new Error();
+    ParseError$1.prototype.name = ParseError$1.name;
+    function XMLReader$1() {}
+    XMLReader$1.prototype = {
+        parse: function (source, defaultNSMap, entityMap) {
+            var domBuilder = this.domBuilder;
+            domBuilder.startDocument();
+            _copy(defaultNSMap, defaultNSMap = {});
+            parse$1(source, defaultNSMap, entityMap, domBuilder, this.errorHandler);
+            domBuilder.endDocument();
+        }
+    };
+    function parse$1(source, defaultNSMapCopy, entityMap, domBuilder, errorHandler) {
+        function fixedFromCharCode(code) {
+            // String.prototype.fromCharCode does not supports
+            // > 2 bytes unicode chars directly
+            if (code > 0xffff) {
+                code -= 0x10000;
+                var surrogate1 = 0xd800 + (code >> 10),
+                    surrogate2 = 0xdc00 + (code & 0x3ff);
+                return String.fromCharCode(surrogate1, surrogate2);
+            } else {
+                return String.fromCharCode(code);
+            }
+        }
+        function entityReplacer(a) {
+            var k = a.slice(1, -1);
+            if (Object.hasOwnProperty.call(entityMap, k)) {
+                return entityMap[k];
+            } else if (k.charAt(0) === '#') {
+                return fixedFromCharCode(parseInt(k.substr(1).replace('x', '0x')));
+            } else {
+                errorHandler.error('entity not found:' + a);
+                return a;
+            }
+        }
+        function appendText(end) {
+            //has some bugs
+            if (end > start) {
+                var xt = source.substring(start, end).replace(/&#?\w+;/g, entityReplacer);
+                locator && position(start);
+                domBuilder.characters(xt, 0, end - start);
+                start = end;
+            }
+        }
+        function position(p, m) {
+            while (p >= lineEnd && (m = linePattern.exec(source))) {
+                lineStart = m.index;
+                lineEnd = lineStart + m[0].length;
+                locator.lineNumber++;
+                //console.log('line++:',locator,startPos,endPos)
+            }
+
+            locator.columnNumber = p - lineStart + 1;
+        }
+        var lineStart = 0;
+        var lineEnd = 0;
+        var linePattern = /.*(?:\r\n?|\n)|.*$/g;
+        var locator = domBuilder.locator;
+        var parseStack = [{
+            currentNSMap: defaultNSMapCopy
+        }];
+        var closeMap = {};
+        var start = 0;
+        while (true) {
+            try {
+                var tagStart = source.indexOf('<', start);
+                if (tagStart < 0) {
+                    if (!source.substr(start).match(/^\s*$/)) {
+                        var doc = domBuilder.doc;
+                        var text = doc.createTextNode(source.substr(start));
+                        doc.appendChild(text);
+                        domBuilder.currentElement = text;
+                    }
+                    return;
+                }
+                if (tagStart > start) {
+                    appendText(tagStart);
+                }
+                switch (source.charAt(tagStart + 1)) {
+                    case '/':
+                        var end = source.indexOf('>', tagStart + 3);
+                        var tagName = source.substring(tagStart + 2, end).replace(/[ \t\n\r]+$/g, '');
+                        var config = parseStack.pop();
+                        if (end < 0) {
+                            tagName = source.substring(tagStart + 2).replace(/[\s<].*/, '');
+                            errorHandler.error("end tag name: " + tagName + ' is not complete:' + config.tagName);
+                            end = tagStart + 1 + tagName.length;
+                        } else if (tagName.match(/\s</)) {
+                            tagName = tagName.replace(/[\s<].*/, '');
+                            errorHandler.error("end tag name: " + tagName + ' maybe not complete');
+                            end = tagStart + 1 + tagName.length;
+                        }
+                        var localNSMap = config.localNSMap;
+                        var endMatch = config.tagName == tagName;
+                        var endIgnoreCaseMach = endMatch || config.tagName && config.tagName.toLowerCase() == tagName.toLowerCase();
+                        if (endIgnoreCaseMach) {
+                            domBuilder.endElement(config.uri, config.localName, tagName);
+                            if (localNSMap) {
+                                for (var prefix in localNSMap) {
+                                    if (Object.prototype.hasOwnProperty.call(localNSMap, prefix)) {
+                                        domBuilder.endPrefixMapping(prefix);
+                                    }
+                                }
+                            }
+                            if (!endMatch) {
+                                errorHandler.fatalError("end tag name: " + tagName + ' is not match the current start tagName:' + config.tagName); // No known test case
+                            }
+                        } else {
+                            parseStack.push(config);
+                        }
+                        end++;
+                        break;
+                    // end elment
+                    case '?':
+                        // <?...?>
+                        locator && position(tagStart);
+                        end = parseInstruction(source, tagStart, domBuilder);
+                        break;
+                    case '!':
+                        // <!doctype,<![CDATA,<!--
+                        locator && position(tagStart);
+                        end = parseDCC(source, tagStart, domBuilder, errorHandler);
+                        break;
+                    default:
+                        locator && position(tagStart);
+                        var el = new ElementAttributes();
+                        var currentNSMap = parseStack[parseStack.length - 1].currentNSMap;
+                        //elStartEnd
+                        var end = parseElementStartPart(source, tagStart, el, currentNSMap, entityReplacer, errorHandler);
+                        var len = el.length;
+                        if (!el.closed && fixSelfClosed(source, end, el.tagName, closeMap)) {
+                            el.closed = true;
+                            if (!entityMap.nbsp) {
+                                errorHandler.warning('unclosed xml attribute');
+                            }
+                        }
+                        if (locator && len) {
+                            var locator2 = copyLocator(locator, {});
+                            //try{//attribute position fixed
+                            for (var i = 0; i < len; i++) {
+                                var a = el[i];
+                                position(a.offset);
+                                a.locator = copyLocator(locator, {});
+                            }
+                            domBuilder.locator = locator2;
+                            if (appendElement$1(el, domBuilder, currentNSMap)) {
+                                parseStack.push(el);
+                            }
+                            domBuilder.locator = locator;
+                        } else {
+                            if (appendElement$1(el, domBuilder, currentNSMap)) {
+                                parseStack.push(el);
+                            }
+                        }
+                        if (NAMESPACE$1.isHTML(el.uri) && !el.closed) {
+                            end = parseHtmlSpecialContent(source, end, el.tagName, entityReplacer, domBuilder);
+                        } else {
+                            end++;
+                        }
+                }
+            } catch (e) {
+                if (e instanceof ParseError$1) {
+                    throw e;
+                }
+                errorHandler.error('element parse error: ' + e);
+                end = -1;
+            }
+            if (end > start) {
+                start = end;
+            } else {
+                //TODO: 这里有可能sax回退，有位置错误风险
+                appendText(Math.max(tagStart, start) + 1);
+            }
+        }
+    }
+    function copyLocator(f, t) {
+        t.lineNumber = f.lineNumber;
+        t.columnNumber = f.columnNumber;
+        return t;
+    }
+
+    /**
+     * @see #appendElement(source,elStartEnd,el,selfClosed,entityReplacer,domBuilder,parseStack);
+     * @return end of the elementStartPart(end of elementEndPart for selfClosed el)
+     */
+    function parseElementStartPart(source, start, el, currentNSMap, entityReplacer, errorHandler) {
+        /**
+         * @param {string} qname
+         * @param {string} value
+         * @param {number} startIndex
+         */
+        function addAttribute(qname, value, startIndex) {
+            if (el.attributeNames.hasOwnProperty(qname)) {
+                errorHandler.fatalError('Attribute ' + qname + ' redefined');
+            }
+            el.addValue(qname,
+                // @see https://www.w3.org/TR/xml/#AVNormalize
+                // since the xmldom sax parser does not "interpret" DTD the following is not implemented:
+                // - recursive replacement of (DTD) entity references
+                // - trimming and collapsing multiple spaces into a single one for attributes that are not of type CDATA
+                value.replace(/[\t\n\r]/g, ' ').replace(/&#?\w+;/g, entityReplacer), startIndex);
+        }
+        var attrName;
+        var value;
+        var p = ++start;
+        var s = S_TAG; //status
+        while (true) {
+            var c = source.charAt(p);
+            switch (c) {
+                case '=':
+                    if (s === S_ATTR) {
+                        //attrName
+                        attrName = source.slice(start, p);
+                        s = S_EQ;
+                    } else if (s === S_ATTR_SPACE) {
+                        s = S_EQ;
+                    } else {
+                        //fatalError: equal must after attrName or space after attrName
+                        throw new Error('attribute equal must after attrName'); // No known test case
+                    }
+
+                    break;
+                case '\'':
+                case '"':
+                    if (s === S_EQ || s === S_ATTR //|| s == S_ATTR_SPACE
+                    ) {
+                        //equal
+                        if (s === S_ATTR) {
+                            errorHandler.warning('attribute value must after "="');
+                            attrName = source.slice(start, p);
+                        }
+                        start = p + 1;
+                        p = source.indexOf(c, start);
+                        if (p > 0) {
+                            value = source.slice(start, p);
+                            addAttribute(attrName, value, start - 1);
+                            s = S_ATTR_END;
+                        } else {
+                            //fatalError: no end quot match
+                            throw new Error('attribute value no end \'' + c + '\' match');
+                        }
+                    } else if (s == S_ATTR_NOQUOT_VALUE) {
+                        value = source.slice(start, p);
+                        addAttribute(attrName, value, start);
+                        errorHandler.warning('attribute "' + attrName + '" missed start quot(' + c + ')!!');
+                        start = p + 1;
+                        s = S_ATTR_END;
+                    } else {
+                        //fatalError: no equal before
+                        throw new Error('attribute value must after "="'); // No known test case
+                    }
+
+                    break;
+                case '/':
+                    switch (s) {
+                        case S_TAG:
+                            el.setTagName(source.slice(start, p));
+                        case S_ATTR_END:
+                        case S_TAG_SPACE:
+                        case S_TAG_CLOSE:
+                            s = S_TAG_CLOSE;
+                            el.closed = true;
+                        case S_ATTR_NOQUOT_VALUE:
+                        case S_ATTR:
+                        case S_ATTR_SPACE:
+                            break;
+                        //case S_EQ:
+                        default:
+                            throw new Error("attribute invalid close char('/')");
+                        // No known test case
+                    }
+
+                    break;
+                case '':
+                    //end document
+                    errorHandler.error('unexpected end of input');
+                    if (s == S_TAG) {
+                        el.setTagName(source.slice(start, p));
+                    }
+                    return p;
+                case '>':
+                    switch (s) {
+                        case S_TAG:
+                            el.setTagName(source.slice(start, p));
+                        case S_ATTR_END:
+                        case S_TAG_SPACE:
+                        case S_TAG_CLOSE:
+                            break;
+                        //normal
+                        case S_ATTR_NOQUOT_VALUE: //Compatible state
+                        case S_ATTR:
+                            value = source.slice(start, p);
+                            if (value.slice(-1) === '/') {
+                                el.closed = true;
+                                value = value.slice(0, -1);
+                            }
+                        case S_ATTR_SPACE:
+                            if (s === S_ATTR_SPACE) {
+                                value = attrName;
+                            }
+                            if (s == S_ATTR_NOQUOT_VALUE) {
+                                errorHandler.warning('attribute "' + value + '" missed quot(")!');
+                                addAttribute(attrName, value, start);
+                            } else {
+                                if (!NAMESPACE$1.isHTML(currentNSMap['']) || !value.match(/^(?:disabled|checked|selected)$/i)) {
+                                    errorHandler.warning('attribute "' + value + '" missed value!! "' + value + '" instead!!');
+                                }
+                                addAttribute(value, value, start);
+                            }
+                            break;
+                        case S_EQ:
+                            throw new Error('attribute value missed!!');
+                    }
+                    //			console.log(tagName,tagNamePattern,tagNamePattern.test(tagName))
+                    return p;
+                /*xml space '\x20' | #x9 | #xD | #xA; */
+                case '\u0080':
+                    c = ' ';
+                default:
+                    if (c <= ' ') {
+                        //space
+                        switch (s) {
+                            case S_TAG:
+                                el.setTagName(source.slice(start, p)); //tagName
+                                s = S_TAG_SPACE;
+                                break;
+                            case S_ATTR:
+                                attrName = source.slice(start, p);
+                                s = S_ATTR_SPACE;
+                                break;
+                            case S_ATTR_NOQUOT_VALUE:
+                                var value = source.slice(start, p);
+                                errorHandler.warning('attribute "' + value + '" missed quot(")!!');
+                                addAttribute(attrName, value, start);
+                            case S_ATTR_END:
+                                s = S_TAG_SPACE;
+                                break;
+                            //case S_TAG_SPACE:
+                            //case S_EQ:
+                            //case S_ATTR_SPACE:
+                            //	void();break;
+                            //case S_TAG_CLOSE:
+                            //ignore warning
+                        }
+                    } else {
+                        //not space
+                        //S_TAG,	S_ATTR,	S_EQ,	S_ATTR_NOQUOT_VALUE
+                        //S_ATTR_SPACE,	S_ATTR_END,	S_TAG_SPACE, S_TAG_CLOSE
+                        switch (s) {
+                            //case S_TAG:void();break;
+                            //case S_ATTR:void();break;
+                            //case S_ATTR_NOQUOT_VALUE:void();break;
+                            case S_ATTR_SPACE:
+                                el.tagName;
+                                if (!NAMESPACE$1.isHTML(currentNSMap['']) || !attrName.match(/^(?:disabled|checked|selected)$/i)) {
+                                    errorHandler.warning('attribute "' + attrName + '" missed value!! "' + attrName + '" instead2!!');
+                                }
+                                addAttribute(attrName, attrName, start);
+                                start = p;
+                                s = S_ATTR;
+                                break;
+                            case S_ATTR_END:
+                                errorHandler.warning('attribute space is required"' + attrName + '"!!');
+                            case S_TAG_SPACE:
+                                s = S_ATTR;
+                                start = p;
+                                break;
+                            case S_EQ:
+                                s = S_ATTR_NOQUOT_VALUE;
+                                start = p;
+                                break;
+                            case S_TAG_CLOSE:
+                                throw new Error("elements closed character '/' and '>' must be connected to");
+                        }
+                    }
+            } //end outer switch
+            //console.log('p++',p)
+            p++;
+        }
+    }
+    /**
+     * @return true if has new namespace define
+     */
+    function appendElement$1(el, domBuilder, currentNSMap) {
+        var tagName = el.tagName;
+        var localNSMap = null;
+        //var currentNSMap = parseStack[parseStack.length-1].currentNSMap;
+        var i = el.length;
+        while (i--) {
+            var a = el[i];
+            var qName = a.qName;
+            var value = a.value;
+            var nsp = qName.indexOf(':');
+            if (nsp > 0) {
+                var prefix = a.prefix = qName.slice(0, nsp);
+                var localName = qName.slice(nsp + 1);
+                var nsPrefix = prefix === 'xmlns' && localName;
+            } else {
+                localName = qName;
+                prefix = null;
+                nsPrefix = qName === 'xmlns' && '';
+            }
+            //can not set prefix,because prefix !== ''
+            a.localName = localName;
+            //prefix == null for no ns prefix attribute
+            if (nsPrefix !== false) {
+                //hack!!
+                if (localNSMap == null) {
+                    localNSMap = {};
+                    //console.log(currentNSMap,0)
+                    _copy(currentNSMap, currentNSMap = {});
+                    //console.log(currentNSMap,1)
+                }
+
+                currentNSMap[nsPrefix] = localNSMap[nsPrefix] = value;
+                a.uri = NAMESPACE$1.XMLNS;
+                domBuilder.startPrefixMapping(nsPrefix, value);
+            }
+        }
+        var i = el.length;
+        while (i--) {
+            a = el[i];
+            var prefix = a.prefix;
+            if (prefix) {
+                //no prefix attribute has no namespace
+                if (prefix === 'xml') {
+                    a.uri = NAMESPACE$1.XML;
+                }
+                if (prefix !== 'xmlns') {
+                    a.uri = currentNSMap[prefix || ''];
+
+                    //{console.log('###'+a.qName,domBuilder.locator.systemId+'',currentNSMap,a.uri)}
+                }
+            }
+        }
+
+        var nsp = tagName.indexOf(':');
+        if (nsp > 0) {
+            prefix = el.prefix = tagName.slice(0, nsp);
+            localName = el.localName = tagName.slice(nsp + 1);
+        } else {
+            prefix = null; //important!!
+            localName = el.localName = tagName;
+        }
+        //no prefix element has default namespace
+        var ns = el.uri = currentNSMap[prefix || ''];
+        domBuilder.startElement(ns, localName, tagName, el);
+        //endPrefixMapping and startPrefixMapping have not any help for dom builder
+        //localNSMap = null
+        if (el.closed) {
+            domBuilder.endElement(ns, localName, tagName);
+            if (localNSMap) {
+                for (prefix in localNSMap) {
+                    if (Object.prototype.hasOwnProperty.call(localNSMap, prefix)) {
+                        domBuilder.endPrefixMapping(prefix);
+                    }
+                }
+            }
+        } else {
+            el.currentNSMap = currentNSMap;
+            el.localNSMap = localNSMap;
+            //parseStack.push(el);
+            return true;
+        }
+    }
+    function parseHtmlSpecialContent(source, elStartEnd, tagName, entityReplacer, domBuilder) {
+        if (/^(?:script|textarea)$/i.test(tagName)) {
+            var elEndStart = source.indexOf('</' + tagName + '>', elStartEnd);
+            var text = source.substring(elStartEnd + 1, elEndStart);
+            if (/[&<]/.test(text)) {
+                if (/^script$/i.test(tagName)) {
+                    //if(!/\]\]>/.test(text)){
+                    //lexHandler.startCDATA();
+                    domBuilder.characters(text, 0, text.length);
+                    //lexHandler.endCDATA();
+                    return elEndStart;
+                    //}
+                } //}else{//text area
+                text = text.replace(/&#?\w+;/g, entityReplacer);
+                domBuilder.characters(text, 0, text.length);
+                return elEndStart;
+                //}
+            }
+        }
+
+        return elStartEnd + 1;
+    }
+    function fixSelfClosed(source, elStartEnd, tagName, closeMap) {
+        //if(tagName in closeMap){
+        var pos = closeMap[tagName];
+        if (pos == null) {
+            //console.log(tagName)
+            pos = source.lastIndexOf('</' + tagName + '>');
+            if (pos < elStartEnd) {
+                //忘记闭合
+                pos = source.lastIndexOf('</' + tagName);
+            }
+            closeMap[tagName] = pos;
+        }
+        return pos < elStartEnd;
+        //}
+    }
+
+    function _copy(source, target) {
+        for (var n in source) {
+            if (Object.prototype.hasOwnProperty.call(source, n)) {
+                target[n] = source[n];
+            }
+        }
+    }
+    function parseDCC(source, start, domBuilder, errorHandler) {
+        //sure start with '<!'
+        var next = source.charAt(start + 2);
+        switch (next) {
+            case '-':
+                if (source.charAt(start + 3) === '-') {
+                    var end = source.indexOf('-->', start + 4);
+                    //append comment source.substring(4,end)//<!--
+                    if (end > start) {
+                        domBuilder.comment(source, start + 4, end - start - 4);
+                        return end + 3;
+                    } else {
+                        errorHandler.error("Unclosed comment");
+                        return -1;
+                    }
+                } else {
+                    //error
+                    return -1;
+                }
+            default:
+                if (source.substr(start + 3, 6) == 'CDATA[') {
+                    var end = source.indexOf(']]>', start + 9);
+                    domBuilder.startCDATA();
+                    domBuilder.characters(source, start + 9, end - start - 9);
+                    domBuilder.endCDATA();
+                    return end + 3;
+                }
+                //<!DOCTYPE
+                //startDTD(java.lang.String name, java.lang.String publicId, java.lang.String systemId)
+                var matchs = split(source, start);
+                var len = matchs.length;
+                if (len > 1 && /!doctype/i.test(matchs[0][0])) {
+                    var name = matchs[1][0];
+                    var pubid = false;
+                    var sysid = false;
+                    if (len > 3) {
+                        if (/^public$/i.test(matchs[2][0])) {
+                            pubid = matchs[3][0];
+                            sysid = len > 4 && matchs[4][0];
+                        } else if (/^system$/i.test(matchs[2][0])) {
+                            sysid = matchs[3][0];
+                        }
+                    }
+                    var lastMatch = matchs[len - 1];
+                    domBuilder.startDTD(name, pubid, sysid);
+                    domBuilder.endDTD();
+                    return lastMatch.index + lastMatch[0].length;
+                }
+        }
+        return -1;
+    }
+    function parseInstruction(source, start, domBuilder) {
+        var end = source.indexOf('?>', start);
+        if (end) {
+            var match = source.substring(start, end).match(/^<\?(\S*)\s*([\s\S]*?)\s*$/);
+            if (match) {
+                match[0].length;
+                domBuilder.processingInstruction(match[1], match[2]);
+                return end + 2;
+            } else {
+                //error
+                return -1;
+            }
+        }
+        return -1;
+    }
+    function ElementAttributes() {
+        this.attributeNames = {};
+    }
+    ElementAttributes.prototype = {
+        setTagName: function (tagName) {
+            if (!tagNamePattern.test(tagName)) {
+                throw new Error('invalid tagName:' + tagName);
+            }
+            this.tagName = tagName;
+        },
+        addValue: function (qName, value, offset) {
+            if (!tagNamePattern.test(qName)) {
+                throw new Error('invalid attribute:' + qName);
+            }
+            this.attributeNames[qName] = this.length;
+            this[this.length++] = {
+                qName: qName,
+                value: value,
+                offset: offset
+            };
+        },
+        length: 0,
+        getLocalName: function (i) {
+            return this[i].localName;
+        },
+        getLocator: function (i) {
+            return this[i].locator;
+        },
+        getQName: function (i) {
+            return this[i].qName;
+        },
+        getURI: function (i) {
+            return this[i].uri;
+        },
+        getValue: function (i) {
+            return this[i].value;
+        }
+        //	,getIndex:function(uri, localName)){
+        //		if(localName){
+        //
+        //		}else{
+        //			var qName = uri
+        //		}
+        //	},
+        //	getValue:function(){return this.getValue(this.getIndex.apply(this,arguments))},
+        //	getType:function(uri,localName){}
+        //	getType:function(i){},
+    };
+
+    function split(source, start) {
+        var match;
+        var buf = [];
+        var reg = /'[^']+'|"[^"]+"|[^\s<>\/=]+=?|(\/?\s*>|<)/g;
+        reg.lastIndex = start;
+        reg.exec(source); //skip <
+        while (match = reg.exec(source)) {
+            buf.push(match);
+            if (match[1]) return buf;
+        }
+    }
+    var XMLReader_1 = XMLReader$1;
+    var ParseError_1 = ParseError$1;
+    var sax = {
+        XMLReader: XMLReader_1,
+        ParseError: ParseError_1
+    };
+
+    var DOMImplementation = dom.DOMImplementation;
+    var NAMESPACE = conventions.NAMESPACE;
+    var ParseError = sax.ParseError;
+    var XMLReader = sax.XMLReader;
+
+    /**
+     * Normalizes line ending according to https://www.w3.org/TR/xml11/#sec-line-ends:
+     *
+     * > XML parsed entities are often stored in computer files which,
+     * > for editing convenience, are organized into lines.
+     * > These lines are typically separated by some combination
+     * > of the characters CARRIAGE RETURN (#xD) and LINE FEED (#xA).
+     * >
+     * > To simplify the tasks of applications, the XML processor must behave
+     * > as if it normalized all line breaks in external parsed entities (including the document entity)
+     * > on input, before parsing, by translating all of the following to a single #xA character:
+     * >
+     * > 1. the two-character sequence #xD #xA
+     * > 2. the two-character sequence #xD #x85
+     * > 3. the single character #x85
+     * > 4. the single character #x2028
+     * > 5. any #xD character that is not immediately followed by #xA or #x85.
+     *
+     * @param {string} input
+     * @returns {string}
+     */
+    function normalizeLineEndings(input) {
+        return input.replace(/\r[\n\u0085]/g, '\n').replace(/[\r\u0085\u2028]/g, '\n');
+    }
+
+    /**
+     * @typedef Locator
+     * @property {number} [columnNumber]
+     * @property {number} [lineNumber]
+     */
+
+    /**
+     * @typedef DOMParserOptions
+     * @property {DOMHandler} [domBuilder]
+     * @property {Function} [errorHandler]
+     * @property {(string) => string} [normalizeLineEndings] used to replace line endings before parsing
+     * 						defaults to `normalizeLineEndings`
+     * @property {Locator} [locator]
+     * @property {Record<string, string>} [xmlns]
+     *
+     * @see normalizeLineEndings
+     */
+
+    /**
+     * The DOMParser interface provides the ability to parse XML or HTML source code
+     * from a string into a DOM `Document`.
+     *
+     * _xmldom is different from the spec in that it allows an `options` parameter,
+     * to override the default behavior._
+     *
+     * @param {DOMParserOptions} [options]
+     * @constructor
+     *
+     * @see https://developer.mozilla.org/en-US/docs/Web/API/DOMParser
+     * @see https://html.spec.whatwg.org/multipage/dynamic-markup-insertion.html#dom-parsing-and-serialization
+     */
+    function DOMParser$1(options) {
+        this.options = options || {
+            locator: {}
+        };
+    }
+    DOMParser$1.prototype.parseFromString = function (source, mimeType) {
+        var options = this.options;
+        var sax = new XMLReader();
+        var domBuilder = options.domBuilder || new DOMHandler(); //contentHandler and LexicalHandler
+        var errorHandler = options.errorHandler;
+        var locator = options.locator;
+        var defaultNSMap = options.xmlns || {};
+        var isHTML = /\/x?html?$/.test(mimeType); //mimeType.toLowerCase().indexOf('html') > -1;
+        var entityMap = isHTML ? entities.HTML_ENTITIES : entities.XML_ENTITIES;
+        if (locator) {
+            domBuilder.setDocumentLocator(locator);
+        }
+        sax.errorHandler = buildErrorHandler(errorHandler, domBuilder, locator);
+        sax.domBuilder = options.domBuilder || domBuilder;
+        if (isHTML) {
+            defaultNSMap[''] = NAMESPACE.HTML;
+        }
+        defaultNSMap.xml = defaultNSMap.xml || NAMESPACE.XML;
+        var normalize = options.normalizeLineEndings || normalizeLineEndings;
+        if (source && typeof source === 'string') {
+            sax.parse(normalize(source), defaultNSMap, entityMap);
+        } else {
+            sax.errorHandler.error('invalid doc source');
+        }
+        return domBuilder.doc;
+    };
+    function buildErrorHandler(errorImpl, domBuilder, locator) {
+        if (!errorImpl) {
+            if (domBuilder instanceof DOMHandler) {
+                return domBuilder;
+            }
+            errorImpl = domBuilder;
+        }
+        var errorHandler = {};
+        var isCallback = errorImpl instanceof Function;
+        locator = locator || {};
+        function build(key) {
+            var fn = errorImpl[key];
+            if (!fn && isCallback) {
+                fn = errorImpl.length == 2 ? function (msg) {
+                    errorImpl(key, msg);
+                } : errorImpl;
+            }
+            errorHandler[key] = fn && function (msg) {
+                fn('[xmldom ' + key + ']\t' + msg + _locator(locator));
+            } || function () {};
+        }
+        build('warning');
+        build('error');
+        build('fatalError');
+        return errorHandler;
+    }
+
+    //console.log('#\n\n\n\n\n\n\n####')
+    /**
+     * +ContentHandler+ErrorHandler
+     * +LexicalHandler+EntityResolver2
+     * -DeclHandler-DTDHandler
+     *
+     * DefaultHandler:EntityResolver, DTDHandler, ContentHandler, ErrorHandler
+     * DefaultHandler2:DefaultHandler,LexicalHandler, DeclHandler, EntityResolver2
+     * @link http://www.saxproject.org/apidoc/org/xml/sax/helpers/DefaultHandler.html
+     */
+    function DOMHandler() {
+        this.cdata = false;
+    }
+    function position(locator, node) {
+        node.lineNumber = locator.lineNumber;
+        node.columnNumber = locator.columnNumber;
+    }
+    /**
+     * @see org.xml.sax.ContentHandler#startDocument
+     * @link http://www.saxproject.org/apidoc/org/xml/sax/ContentHandler.html
+     */
+    DOMHandler.prototype = {
+        startDocument: function () {
+            this.doc = new DOMImplementation().createDocument(null, null, null);
+            if (this.locator) {
+                this.doc.documentURI = this.locator.systemId;
+            }
+        },
+        startElement: function (namespaceURI, localName, qName, attrs) {
+            var doc = this.doc;
+            var el = doc.createElementNS(namespaceURI, qName || localName);
+            var len = attrs.length;
+            appendElement(this, el);
+            this.currentElement = el;
+            this.locator && position(this.locator, el);
+            for (var i = 0; i < len; i++) {
+                var namespaceURI = attrs.getURI(i);
+                var value = attrs.getValue(i);
+                var qName = attrs.getQName(i);
+                var attr = doc.createAttributeNS(namespaceURI, qName);
+                this.locator && position(attrs.getLocator(i), attr);
+                attr.value = attr.nodeValue = value;
+                el.setAttributeNode(attr);
+            }
+        },
+        endElement: function (namespaceURI, localName, qName) {
+            var current = this.currentElement;
+            current.tagName;
+            this.currentElement = current.parentNode;
+        },
+        startPrefixMapping: function (prefix, uri) {},
+        endPrefixMapping: function (prefix) {},
+        processingInstruction: function (target, data) {
+            var ins = this.doc.createProcessingInstruction(target, data);
+            this.locator && position(this.locator, ins);
+            appendElement(this, ins);
+        },
+        ignorableWhitespace: function (ch, start, length) {},
+        characters: function (chars, start, length) {
+            chars = _toString.apply(this, arguments);
+            //console.log(chars)
+            if (chars) {
+                if (this.cdata) {
+                    var charNode = this.doc.createCDATASection(chars);
+                } else {
+                    var charNode = this.doc.createTextNode(chars);
+                }
+                if (this.currentElement) {
+                    this.currentElement.appendChild(charNode);
+                } else if (/^\s*$/.test(chars)) {
+                    this.doc.appendChild(charNode);
+                    //process xml
+                }
+
+                this.locator && position(this.locator, charNode);
+            }
+        },
+        skippedEntity: function (name) {},
+        endDocument: function () {
+            this.doc.normalize();
+        },
+        setDocumentLocator: function (locator) {
+            if (this.locator = locator) {
+                // && !('lineNumber' in locator)){
+                locator.lineNumber = 0;
+            }
+        },
+        //LexicalHandler
+        comment: function (chars, start, length) {
+            chars = _toString.apply(this, arguments);
+            var comm = this.doc.createComment(chars);
+            this.locator && position(this.locator, comm);
+            appendElement(this, comm);
+        },
+        startCDATA: function () {
+            //used in characters() methods
+            this.cdata = true;
+        },
+        endCDATA: function () {
+            this.cdata = false;
+        },
+        startDTD: function (name, publicId, systemId) {
+            var impl = this.doc.implementation;
+            if (impl && impl.createDocumentType) {
+                var dt = impl.createDocumentType(name, publicId, systemId);
+                this.locator && position(this.locator, dt);
+                appendElement(this, dt);
+                this.doc.doctype = dt;
+            }
+        },
+        /**
+         * @see org.xml.sax.ErrorHandler
+         * @link http://www.saxproject.org/apidoc/org/xml/sax/ErrorHandler.html
+         */
+        warning: function (error) {
+            console.warn('[xmldom warning]\t' + error, _locator(this.locator));
+        },
+        error: function (error) {
+            console.error('[xmldom error]\t' + error, _locator(this.locator));
+        },
+        fatalError: function (error) {
+            throw new ParseError(error, this.locator);
+        }
+    };
+    function _locator(l) {
+        if (l) {
+            return '\n@' + (l.systemId || '') + '#[line:' + l.lineNumber + ',col:' + l.columnNumber + ']';
+        }
+    }
+    function _toString(chars, start, length) {
+        if (typeof chars == 'string') {
+            return chars.substr(start, length);
+        } else {
+            //java sax connect width xmldom on rhino(what about: "? && !(chars instanceof String)")
+            if (chars.length >= start + length || start) {
+                return new java.lang.String(chars, start, length) + '';
+            }
+            return chars;
+        }
+    }
+
+    /*
    * @link http://www.saxproject.org/apidoc/org/xml/sax/ext/LexicalHandler.html
    * used method of org.xml.sax.ext.LexicalHandler:
    *  #comment(chars, start, length)
@@ -36774,2694 +33532,2359 @@
    *  #notationDecl(name, publicId, systemId) {};
    *  #unparsedEntityDecl(name, publicId, systemId, notationName) {};
    */
+    "endDTD,startEntity,endEntity,attributeDecl,elementDecl,externalEntityDecl,internalEntityDecl,resolveEntity,getExternalSubset,notationDecl,unparsedEntityDecl".replace(/\w+/g, function (key) {
+        DOMHandler.prototype[key] = function () {
+            return null;
+        };
+    });
 
-
-  "endDTD,startEntity,endEntity,attributeDecl,elementDecl,externalEntityDecl,internalEntityDecl,resolveEntity,getExternalSubset,notationDecl,unparsedEntityDecl".replace(/\w+/g, function (key) {
-    DOMHandler.prototype[key] = function () {
-      return null;
-    };
-  });
-  /* Private static helpers treated below as private instance methods, so don't need to add these to the public API; we might use a Relator to also get rid of non-standard public properties */
-
-  function appendElement(hander, node) {
-    if (!hander.currentElement) {
-      hander.doc.appendChild(node);
-    } else {
-      hander.currentElement.appendChild(node);
-    }
-  } //appendChild and setAttributeNS are preformance key
-
-
-  var __DOMHandler = DOMHandler;
-  var DOMParser_1 = DOMParser$1;
-  /**
-   * @deprecated Import/require from main entry point instead
-   */
-
-  var DOMImplementation_1 = dom.DOMImplementation;
-  /**
-   * @deprecated Import/require from main entry point instead
-   */
-
-  var XMLSerializer = dom.XMLSerializer;
-  var domParser = {
-    __DOMHandler: __DOMHandler,
-    DOMParser: DOMParser_1,
-    DOMImplementation: DOMImplementation_1,
-    XMLSerializer: XMLSerializer
-  };
-
-  var DOMParser = domParser.DOMParser;
-
-  /*! @name mpd-parser @version 0.21.1 @license Apache-2.0 */
-
-  var isObject = function isObject(obj) {
-    return !!obj && typeof obj === 'object';
-  };
-
-  var merge = function merge() {
-    for (var _len = arguments.length, objects = new Array(_len), _key = 0; _key < _len; _key++) {
-      objects[_key] = arguments[_key];
-    }
-
-    return objects.reduce(function (result, source) {
-      if (typeof source !== 'object') {
-        return result;
-      }
-
-      Object.keys(source).forEach(function (key) {
-        if (Array.isArray(result[key]) && Array.isArray(source[key])) {
-          result[key] = result[key].concat(source[key]);
-        } else if (isObject(result[key]) && isObject(source[key])) {
-          result[key] = merge(result[key], source[key]);
+    /* Private static helpers treated below as private instance methods, so don't need to add these to the public API; we might use a Relator to also get rid of non-standard public properties */
+    function appendElement(hander, node) {
+        if (!hander.currentElement) {
+            hander.doc.appendChild(node);
         } else {
-          result[key] = source[key];
+            hander.currentElement.appendChild(node);
         }
-      });
-      return result;
-    }, {});
-  };
+    } //appendChild and setAttributeNS are preformance key
 
-  var values = function values(o) {
-    return Object.keys(o).map(function (k) {
-      return o[k];
-    });
-  };
-
-  var range = function range(start, end) {
-    var result = [];
-
-    for (var i = start; i < end; i++) {
-      result.push(i);
-    }
-
-    return result;
-  };
-
-  var flatten = function flatten(lists) {
-    return lists.reduce(function (x, y) {
-      return x.concat(y);
-    }, []);
-  };
-
-  var from = function from(list) {
-    if (!list.length) {
-      return [];
-    }
-
-    var result = [];
-
-    for (var i = 0; i < list.length; i++) {
-      result.push(list[i]);
-    }
-
-    return result;
-  };
-
-  var findIndexes = function findIndexes(l, key) {
-    return l.reduce(function (a, e, i) {
-      if (e[key]) {
-        a.push(i);
-      }
-
-      return a;
-    }, []);
-  };
-  /**
-   * Returns the first index that satisfies the matching function, or -1 if not found.
-   *
-   * Only necessary because of IE11 support.
-   *
-   * @param {Array} list - the list to search through
-   * @param {Function} matchingFunction - the matching function
-   *
-   * @return {number} the matching index or -1 if not found
-   */
-
-
-  var findIndex = function findIndex(list, matchingFunction) {
-    for (var i = 0; i < list.length; i++) {
-      if (matchingFunction(list[i])) {
-        return i;
-      }
-    }
-
-    return -1;
-  };
-  /**
-   * Returns a union of the included lists provided each element can be identified by a key.
-   *
-   * @param {Array} list - list of lists to get the union of
-   * @param {Function} keyFunction - the function to use as a key for each element
-   *
-   * @return {Array} the union of the arrays
-   */
-
-
-  var union = function union(lists, keyFunction) {
-    return values(lists.reduce(function (acc, list) {
-      list.forEach(function (el) {
-        acc[keyFunction(el)] = el;
-      });
-      return acc;
-    }, {}));
-  };
-
-  var errors = {
-    INVALID_NUMBER_OF_PERIOD: 'INVALID_NUMBER_OF_PERIOD',
-    DASH_EMPTY_MANIFEST: 'DASH_EMPTY_MANIFEST',
-    DASH_INVALID_XML: 'DASH_INVALID_XML',
-    NO_BASE_URL: 'NO_BASE_URL',
-    MISSING_SEGMENT_INFORMATION: 'MISSING_SEGMENT_INFORMATION',
-    SEGMENT_TIME_UNSPECIFIED: 'SEGMENT_TIME_UNSPECIFIED',
-    UNSUPPORTED_UTC_TIMING_SCHEME: 'UNSUPPORTED_UTC_TIMING_SCHEME'
-  };
-  /**
-   * @typedef {Object} SingleUri
-   * @property {string} uri - relative location of segment
-   * @property {string} resolvedUri - resolved location of segment
-   * @property {Object} byterange - Object containing information on how to make byte range
-   *   requests following byte-range-spec per RFC2616.
-   * @property {String} byterange.length - length of range request
-   * @property {String} byterange.offset - byte offset of range request
-   *
-   * @see https://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.35.1
-   */
-
-  /**
-   * Converts a URLType node (5.3.9.2.3 Table 13) to a segment object
-   * that conforms to how m3u8-parser is structured
-   *
-   * @see https://github.com/videojs/m3u8-parser
-   *
-   * @param {string} baseUrl - baseUrl provided by <BaseUrl> nodes
-   * @param {string} source - source url for segment
-   * @param {string} range - optional range used for range calls,
-   *   follows  RFC 2616, Clause 14.35.1
-   * @return {SingleUri} full segment information transformed into a format similar
-   *   to m3u8-parser
-   */
-
-  var urlTypeToSegment = function urlTypeToSegment(_ref) {
-    var _ref$baseUrl = _ref.baseUrl,
-        baseUrl = _ref$baseUrl === void 0 ? '' : _ref$baseUrl,
-        _ref$source = _ref.source,
-        source = _ref$source === void 0 ? '' : _ref$source,
-        _ref$range = _ref.range,
-        range = _ref$range === void 0 ? '' : _ref$range,
-        _ref$indexRange = _ref.indexRange,
-        indexRange = _ref$indexRange === void 0 ? '' : _ref$indexRange;
-    var segment = {
-      uri: source,
-      resolvedUri: resolveUrl$1(baseUrl || '', source)
+    var __DOMHandler = DOMHandler;
+    var normalizeLineEndings_1 = normalizeLineEndings;
+    var DOMParser_1 = DOMParser$1;
+    var domParser = {
+        __DOMHandler: __DOMHandler,
+        normalizeLineEndings: normalizeLineEndings_1,
+        DOMParser: DOMParser_1
     };
 
-    if (range || indexRange) {
-      var rangeStr = range ? range : indexRange;
-      var ranges = rangeStr.split('-'); // default to parsing this as a BigInt if possible
+    var DOMParser = domParser.DOMParser;
 
-      var startRange = window.BigInt ? window.BigInt(ranges[0]) : parseInt(ranges[0], 10);
-      var endRange = window.BigInt ? window.BigInt(ranges[1]) : parseInt(ranges[1], 10); // convert back to a number if less than MAX_SAFE_INTEGER
-
-      if (startRange < Number.MAX_SAFE_INTEGER && typeof startRange === 'bigint') {
-        startRange = Number(startRange);
-      }
-
-      if (endRange < Number.MAX_SAFE_INTEGER && typeof endRange === 'bigint') {
-        endRange = Number(endRange);
-      }
-
-      var length;
-
-      if (typeof endRange === 'bigint' || typeof startRange === 'bigint') {
-        length = window.BigInt(endRange) - window.BigInt(startRange) + window.BigInt(1);
-      } else {
-        length = endRange - startRange + 1;
-      }
-
-      if (typeof length === 'bigint' && length < Number.MAX_SAFE_INTEGER) {
-        length = Number(length);
-      } // byterange should be inclusive according to
-      // RFC 2616, Clause 14.35.1
-
-
-      segment.byterange = {
-        length: length,
-        offset: startRange
-      };
-    }
-
-    return segment;
-  };
-
-  var byteRangeToString = function byteRangeToString(byterange) {
-    // `endRange` is one less than `offset + length` because the HTTP range
-    // header uses inclusive ranges
-    var endRange;
-
-    if (typeof byterange.offset === 'bigint' || typeof byterange.length === 'bigint') {
-      endRange = window.BigInt(byterange.offset) + window.BigInt(byterange.length) - window.BigInt(1);
-    } else {
-      endRange = byterange.offset + byterange.length - 1;
-    }
-
-    return byterange.offset + "-" + endRange;
-  };
-  /**
-   * parse the end number attribue that can be a string
-   * number, or undefined.
-   *
-   * @param {string|number|undefined} endNumber
-   *        The end number attribute.
-   *
-   * @return {number|null}
-   *          The result of parsing the end number.
-   */
-
-
-  var parseEndNumber = function parseEndNumber(endNumber) {
-    if (endNumber && typeof endNumber !== 'number') {
-      endNumber = parseInt(endNumber, 10);
-    }
-
-    if (isNaN(endNumber)) {
-      return null;
-    }
-
-    return endNumber;
-  };
-  /**
-   * Functions for calculating the range of available segments in static and dynamic
-   * manifests.
-   */
-
-
-  var segmentRange = {
-    /**
-     * Returns the entire range of available segments for a static MPD
-     *
-     * @param {Object} attributes
-     *        Inheritied MPD attributes
-     * @return {{ start: number, end: number }}
-     *         The start and end numbers for available segments
-     */
-    "static": function _static(attributes) {
-      var duration = attributes.duration,
-          _attributes$timescale = attributes.timescale,
-          timescale = _attributes$timescale === void 0 ? 1 : _attributes$timescale,
-          sourceDuration = attributes.sourceDuration,
-          periodDuration = attributes.periodDuration;
-      var endNumber = parseEndNumber(attributes.endNumber);
-      var segmentDuration = duration / timescale;
-
-      if (typeof endNumber === 'number') {
-        return {
-          start: 0,
-          end: endNumber
-        };
-      }
-
-      if (typeof periodDuration === 'number') {
-        return {
-          start: 0,
-          end: periodDuration / segmentDuration
-        };
-      }
-
-      return {
-        start: 0,
-        end: sourceDuration / segmentDuration
-      };
-    },
-
-    /**
-     * Returns the current live window range of available segments for a dynamic MPD
-     *
-     * @param {Object} attributes
-     *        Inheritied MPD attributes
-     * @return {{ start: number, end: number }}
-     *         The start and end numbers for available segments
-     */
-    dynamic: function dynamic(attributes) {
-      var NOW = attributes.NOW,
-          clientOffset = attributes.clientOffset,
-          availabilityStartTime = attributes.availabilityStartTime,
-          _attributes$timescale2 = attributes.timescale,
-          timescale = _attributes$timescale2 === void 0 ? 1 : _attributes$timescale2,
-          duration = attributes.duration,
-          _attributes$periodSta = attributes.periodStart,
-          periodStart = _attributes$periodSta === void 0 ? 0 : _attributes$periodSta,
-          _attributes$minimumUp = attributes.minimumUpdatePeriod,
-          minimumUpdatePeriod = _attributes$minimumUp === void 0 ? 0 : _attributes$minimumUp,
-          _attributes$timeShift = attributes.timeShiftBufferDepth,
-          timeShiftBufferDepth = _attributes$timeShift === void 0 ? Infinity : _attributes$timeShift;
-      var endNumber = parseEndNumber(attributes.endNumber); // clientOffset is passed in at the top level of mpd-parser and is an offset calculated
-      // after retrieving UTC server time.
-
-      var now = (NOW + clientOffset) / 1000; // WC stands for Wall Clock.
-      // Convert the period start time to EPOCH.
-
-      var periodStartWC = availabilityStartTime + periodStart; // Period end in EPOCH is manifest's retrieval time + time until next update.
-
-      var periodEndWC = now + minimumUpdatePeriod;
-      var periodDuration = periodEndWC - periodStartWC;
-      var segmentCount = Math.ceil(periodDuration * timescale / duration);
-      var availableStart = Math.floor((now - periodStartWC - timeShiftBufferDepth) * timescale / duration);
-      var availableEnd = Math.floor((now - periodStartWC) * timescale / duration);
-      return {
-        start: Math.max(0, availableStart),
-        end: typeof endNumber === 'number' ? endNumber : Math.min(segmentCount, availableEnd)
-      };
-    }
-  };
-  /**
-   * Maps a range of numbers to objects with information needed to build the corresponding
-   * segment list
-   *
-   * @name toSegmentsCallback
-   * @function
-   * @param {number} number
-   *        Number of the segment
-   * @param {number} index
-   *        Index of the number in the range list
-   * @return {{ number: Number, duration: Number, timeline: Number, time: Number }}
-   *         Object with segment timing and duration info
-   */
-
-  /**
-   * Returns a callback for Array.prototype.map for mapping a range of numbers to
-   * information needed to build the segment list.
-   *
-   * @param {Object} attributes
-   *        Inherited MPD attributes
-   * @return {toSegmentsCallback}
-   *         Callback map function
-   */
-
-  var toSegments = function toSegments(attributes) {
-    return function (number) {
-      var duration = attributes.duration,
-          _attributes$timescale3 = attributes.timescale,
-          timescale = _attributes$timescale3 === void 0 ? 1 : _attributes$timescale3,
-          periodStart = attributes.periodStart,
-          _attributes$startNumb = attributes.startNumber,
-          startNumber = _attributes$startNumb === void 0 ? 1 : _attributes$startNumb;
-      return {
-        number: startNumber + number,
-        duration: duration / timescale,
-        timeline: periodStart,
-        time: number * duration
-      };
+    /*! @name mpd-parser @version 1.0.1 @license Apache-2.0 */
+    const isObject = obj => {
+        return !!obj && typeof obj === 'object';
     };
-  };
-  /**
-   * Returns a list of objects containing segment timing and duration info used for
-   * building the list of segments. This uses the @duration attribute specified
-   * in the MPD manifest to derive the range of segments.
-   *
-   * @param {Object} attributes
-   *        Inherited MPD attributes
-   * @return {{number: number, duration: number, time: number, timeline: number}[]}
-   *         List of Objects with segment timing and duration info
-   */
-
-
-  var parseByDuration = function parseByDuration(attributes) {
-    var type = attributes.type,
-        duration = attributes.duration,
-        _attributes$timescale4 = attributes.timescale,
-        timescale = _attributes$timescale4 === void 0 ? 1 : _attributes$timescale4,
-        periodDuration = attributes.periodDuration,
-        sourceDuration = attributes.sourceDuration;
-
-    var _segmentRange$type = segmentRange[type](attributes),
-        start = _segmentRange$type.start,
-        end = _segmentRange$type.end;
-
-    var segments = range(start, end).map(toSegments(attributes));
-
-    if (type === 'static') {
-      var index = segments.length - 1; // section is either a period or the full source
-
-      var sectionDuration = typeof periodDuration === 'number' ? periodDuration : sourceDuration; // final segment may be less than full segment duration
-
-      segments[index].duration = sectionDuration - duration / timescale * index;
-    }
-
-    return segments;
-  };
-  /**
-   * Translates SegmentBase into a set of segments.
-   * (DASH SPEC Section 5.3.9.3.2) contains a set of <SegmentURL> nodes.  Each
-   * node should be translated into segment.
-   *
-   * @param {Object} attributes
-   *   Object containing all inherited attributes from parent elements with attribute
-   *   names as keys
-   * @return {Object.<Array>} list of segments
-   */
-
-
-  var segmentsFromBase = function segmentsFromBase(attributes) {
-    var baseUrl = attributes.baseUrl,
-        _attributes$initializ = attributes.initialization,
-        initialization = _attributes$initializ === void 0 ? {} : _attributes$initializ,
-        sourceDuration = attributes.sourceDuration,
-        _attributes$indexRang = attributes.indexRange,
-        indexRange = _attributes$indexRang === void 0 ? '' : _attributes$indexRang,
-        periodStart = attributes.periodStart,
-        presentationTime = attributes.presentationTime,
-        _attributes$number = attributes.number,
-        number = _attributes$number === void 0 ? 0 : _attributes$number,
-        duration = attributes.duration; // base url is required for SegmentBase to work, per spec (Section 5.3.9.2.1)
-
-    if (!baseUrl) {
-      throw new Error(errors.NO_BASE_URL);
-    }
-
-    var initSegment = urlTypeToSegment({
-      baseUrl: baseUrl,
-      source: initialization.sourceURL,
-      range: initialization.range
-    });
-    var segment = urlTypeToSegment({
-      baseUrl: baseUrl,
-      source: baseUrl,
-      indexRange: indexRange
-    });
-    segment.map = initSegment; // If there is a duration, use it, otherwise use the given duration of the source
-    // (since SegmentBase is only for one total segment)
-
-    if (duration) {
-      var segmentTimeInfo = parseByDuration(attributes);
-
-      if (segmentTimeInfo.length) {
-        segment.duration = segmentTimeInfo[0].duration;
-        segment.timeline = segmentTimeInfo[0].timeline;
-      }
-    } else if (sourceDuration) {
-      segment.duration = sourceDuration;
-      segment.timeline = periodStart;
-    } // If presentation time is provided, these segments are being generated by SIDX
-    // references, and should use the time provided. For the general case of SegmentBase,
-    // there should only be one segment in the period, so its presentation time is the same
-    // as its period start.
-
-
-    segment.presentationTime = presentationTime || periodStart;
-    segment.number = number;
-    return [segment];
-  };
-  /**
-   * Given a playlist, a sidx box, and a baseUrl, update the segment list of the playlist
-   * according to the sidx information given.
-   *
-   * playlist.sidx has metadadata about the sidx where-as the sidx param
-   * is the parsed sidx box itself.
-   *
-   * @param {Object} playlist the playlist to update the sidx information for
-   * @param {Object} sidx the parsed sidx box
-   * @return {Object} the playlist object with the updated sidx information
-   */
-
-
-  var addSidxSegmentsToPlaylist$1 = function addSidxSegmentsToPlaylist(playlist, sidx, baseUrl) {
-    // Retain init segment information
-    var initSegment = playlist.sidx.map ? playlist.sidx.map : null; // Retain source duration from initial main manifest parsing
-
-    var sourceDuration = playlist.sidx.duration; // Retain source timeline
-
-    var timeline = playlist.timeline || 0;
-    var sidxByteRange = playlist.sidx.byterange;
-    var sidxEnd = sidxByteRange.offset + sidxByteRange.length; // Retain timescale of the parsed sidx
-
-    var timescale = sidx.timescale; // referenceType 1 refers to other sidx boxes
-
-    var mediaReferences = sidx.references.filter(function (r) {
-      return r.referenceType !== 1;
-    });
-    var segments = [];
-    var type = playlist.endList ? 'static' : 'dynamic';
-    var periodStart = playlist.sidx.timeline;
-    var presentationTime = periodStart;
-    var number = playlist.mediaSequence || 0; // firstOffset is the offset from the end of the sidx box
-
-    var startIndex; // eslint-disable-next-line
-
-    if (typeof sidx.firstOffset === 'bigint') {
-      startIndex = window.BigInt(sidxEnd) + sidx.firstOffset;
-    } else {
-      startIndex = sidxEnd + sidx.firstOffset;
-    }
-
-    for (var i = 0; i < mediaReferences.length; i++) {
-      var reference = sidx.references[i]; // size of the referenced (sub)segment
-
-      var size = reference.referencedSize; // duration of the referenced (sub)segment, in  the  timescale
-      // this will be converted to seconds when generating segments
-
-      var duration = reference.subsegmentDuration; // should be an inclusive range
-
-      var endIndex = void 0; // eslint-disable-next-line
-
-      if (typeof startIndex === 'bigint') {
-        endIndex = startIndex + window.BigInt(size) - window.BigInt(1);
-      } else {
-        endIndex = startIndex + size - 1;
-      }
-
-      var indexRange = startIndex + "-" + endIndex;
-      var attributes = {
-        baseUrl: baseUrl,
-        timescale: timescale,
-        timeline: timeline,
-        periodStart: periodStart,
-        presentationTime: presentationTime,
-        number: number,
-        duration: duration,
-        sourceDuration: sourceDuration,
-        indexRange: indexRange,
-        type: type
-      };
-      var segment = segmentsFromBase(attributes)[0];
-
-      if (initSegment) {
-        segment.map = initSegment;
-      }
-
-      segments.push(segment);
-
-      if (typeof startIndex === 'bigint') {
-        startIndex += window.BigInt(size);
-      } else {
-        startIndex += size;
-      }
-
-      presentationTime += duration / timescale;
-      number++;
-    }
-
-    playlist.segments = segments;
-    return playlist;
-  };
-
-  var SUPPORTED_MEDIA_TYPES = ['AUDIO', 'SUBTITLES']; // allow one 60fps frame as leniency (arbitrarily chosen)
-
-  var TIME_FUDGE = 1 / 60;
-  /**
-   * Given a list of timelineStarts, combines, dedupes, and sorts them.
-   *
-   * @param {TimelineStart[]} timelineStarts - list of timeline starts
-   *
-   * @return {TimelineStart[]} the combined and deduped timeline starts
-   */
-
-  var getUniqueTimelineStarts = function getUniqueTimelineStarts(timelineStarts) {
-    return union(timelineStarts, function (_ref) {
-      var timeline = _ref.timeline;
-      return timeline;
-    }).sort(function (a, b) {
-      return a.timeline > b.timeline ? 1 : -1;
-    });
-  };
-  /**
-   * Finds the playlist with the matching NAME attribute.
-   *
-   * @param {Array} playlists - playlists to search through
-   * @param {string} name - the NAME attribute to search for
-   *
-   * @return {Object|null} the matching playlist object, or null
-   */
-
-
-  var findPlaylistWithName = function findPlaylistWithName(playlists, name) {
-    for (var i = 0; i < playlists.length; i++) {
-      if (playlists[i].attributes.NAME === name) {
-        return playlists[i];
-      }
-    }
-
-    return null;
-  };
-  /**
-   * Gets a flattened array of media group playlists.
-   *
-   * @param {Object} manifest - the main manifest object
-   *
-   * @return {Array} the media group playlists
-   */
-
-
-  var getMediaGroupPlaylists = function getMediaGroupPlaylists(manifest) {
-    var mediaGroupPlaylists = [];
-    forEachMediaGroup$1(manifest, SUPPORTED_MEDIA_TYPES, function (properties, type, group, label) {
-      mediaGroupPlaylists = mediaGroupPlaylists.concat(properties.playlists || []);
-    });
-    return mediaGroupPlaylists;
-  };
-  /**
-   * Updates the playlist's media sequence numbers.
-   *
-   * @param {Object} config - options object
-   * @param {Object} config.playlist - the playlist to update
-   * @param {number} config.mediaSequence - the mediaSequence number to start with
-   */
-
-
-  var updateMediaSequenceForPlaylist = function updateMediaSequenceForPlaylist(_ref2) {
-    var playlist = _ref2.playlist,
-        mediaSequence = _ref2.mediaSequence;
-    playlist.mediaSequence = mediaSequence;
-    playlist.segments.forEach(function (segment, index) {
-      segment.number = playlist.mediaSequence + index;
-    });
-  };
-  /**
-   * Updates the media and discontinuity sequence numbers of newPlaylists given oldPlaylists
-   * and a complete list of timeline starts.
-   *
-   * If no matching playlist is found, only the discontinuity sequence number of the playlist
-   * will be updated.
-   *
-   * Since early available timelines are not supported, at least one segment must be present.
-   *
-   * @param {Object} config - options object
-   * @param {Object[]} oldPlaylists - the old playlists to use as a reference
-   * @param {Object[]} newPlaylists - the new playlists to update
-   * @param {Object} timelineStarts - all timelineStarts seen in the stream to this point
-   */
-
-
-  var updateSequenceNumbers = function updateSequenceNumbers(_ref3) {
-    var oldPlaylists = _ref3.oldPlaylists,
-        newPlaylists = _ref3.newPlaylists,
-        timelineStarts = _ref3.timelineStarts;
-    newPlaylists.forEach(function (playlist) {
-      playlist.discontinuitySequence = findIndex(timelineStarts, function (_ref4) {
-        var timeline = _ref4.timeline;
-        return timeline === playlist.timeline;
-      }); // Playlists NAMEs come from DASH Representation IDs, which are mandatory
-      // (see ISO_23009-1-2012 5.3.5.2).
-      //
-      // If the same Representation existed in a prior Period, it will retain the same NAME.
-
-      var oldPlaylist = findPlaylistWithName(oldPlaylists, playlist.attributes.NAME);
-
-      if (!oldPlaylist) {
-        // Since this is a new playlist, the media sequence values can start from 0 without
-        // consequence.
-        return;
-      } // TODO better support for live SIDX
-      //
-      // As of this writing, mpd-parser does not support multiperiod SIDX (in live or VOD).
-      // This is evident by a playlist only having a single SIDX reference. In a multiperiod
-      // playlist there would need to be multiple SIDX references. In addition, live SIDX is
-      // not supported when the SIDX properties change on refreshes.
-      //
-      // In the future, if support needs to be added, the merging logic here can be called
-      // after SIDX references are resolved. For now, exit early to prevent exceptions being
-      // thrown due to undefined references.
-
-
-      if (playlist.sidx) {
-        return;
-      } // Since we don't yet support early available timelines, we don't need to support
-      // playlists with no segments.
-
-
-      var firstNewSegment = playlist.segments[0];
-      var oldMatchingSegmentIndex = findIndex(oldPlaylist.segments, function (oldSegment) {
-        return Math.abs(oldSegment.presentationTime - firstNewSegment.presentationTime) < TIME_FUDGE;
-      }); // No matching segment from the old playlist means the entire playlist was refreshed.
-      // In this case the media sequence should account for this update, and the new segments
-      // should be marked as discontinuous from the prior content, since the last prior
-      // timeline was removed.
-
-      if (oldMatchingSegmentIndex === -1) {
-        updateMediaSequenceForPlaylist({
-          playlist: playlist,
-          mediaSequence: oldPlaylist.mediaSequence + oldPlaylist.segments.length
-        });
-        playlist.segments[0].discontinuity = true;
-        playlist.discontinuityStarts.unshift(0); // No matching segment does not necessarily mean there's missing content.
-        //
-        // If the new playlist's timeline is the same as the last seen segment's timeline,
-        // then a discontinuity can be added to identify that there's potentially missing
-        // content. If there's no missing content, the discontinuity should still be rather
-        // harmless. It's possible that if segment durations are accurate enough, that the
-        // existence of a gap can be determined using the presentation times and durations,
-        // but if the segment timing info is off, it may introduce more problems than simply
-        // adding the discontinuity.
-        //
-        // If the new playlist's timeline is different from the last seen segment's timeline,
-        // then a discontinuity can be added to identify that this is the first seen segment
-        // of a new timeline. However, the logic at the start of this function that
-        // determined the disconinuity sequence by timeline index is now off by one (the
-        // discontinuity of the newest timeline hasn't yet fallen off the manifest...since
-        // we added it), so the disconinuity sequence must be decremented.
-        //
-        // A period may also have a duration of zero, so the case of no segments is handled
-        // here even though we don't yet support early available periods.
-
-        if (!oldPlaylist.segments.length && playlist.timeline > oldPlaylist.timeline || oldPlaylist.segments.length && playlist.timeline > oldPlaylist.segments[oldPlaylist.segments.length - 1].timeline) {
-          playlist.discontinuitySequence--;
-        }
-
-        return;
-      } // If the first segment matched with a prior segment on a discontinuity (it's matching
-      // on the first segment of a period), then the discontinuitySequence shouldn't be the
-      // timeline's matching one, but instead should be the one prior, and the first segment
-      // of the new manifest should be marked with a discontinuity.
-      //
-      // The reason for this special case is that discontinuity sequence shows how many
-      // discontinuities have fallen off of the playlist, and discontinuities are marked on
-      // the first segment of a new "timeline." Because of this, while DASH will retain that
-      // Period while the "timeline" exists, HLS keeps track of it via the discontinuity
-      // sequence, and that first segment is an indicator, but can be removed before that
-      // timeline is gone.
-
-
-      var oldMatchingSegment = oldPlaylist.segments[oldMatchingSegmentIndex];
-
-      if (oldMatchingSegment.discontinuity && !firstNewSegment.discontinuity) {
-        firstNewSegment.discontinuity = true;
-        playlist.discontinuityStarts.unshift(0);
-        playlist.discontinuitySequence--;
-      }
-
-      updateMediaSequenceForPlaylist({
-        playlist: playlist,
-        mediaSequence: oldPlaylist.segments[oldMatchingSegmentIndex].number
-      });
-    });
-  };
-  /**
-   * Given an old parsed manifest object and a new parsed manifest object, updates the
-   * sequence and timing values within the new manifest to ensure that it lines up with the
-   * old.
-   *
-   * @param {Array} oldManifest - the old main manifest object
-   * @param {Array} newManifest - the new main manifest object
-   *
-   * @return {Object} the updated new manifest object
-   */
-
-
-  var positionManifestOnTimeline = function positionManifestOnTimeline(_ref5) {
-    var oldManifest = _ref5.oldManifest,
-        newManifest = _ref5.newManifest; // Starting from v4.1.2 of the IOP, section 4.4.3.3 states:
-    //
-    // "MPD@availabilityStartTime and Period@start shall not be changed over MPD updates."
-    //
-    // This was added from https://github.com/Dash-Industry-Forum/DASH-IF-IOP/issues/160
-    //
-    // Because of this change, and the difficulty of supporting periods with changing start
-    // times, periods with changing start times are not supported. This makes the logic much
-    // simpler, since periods with the same start time can be considerred the same period
-    // across refreshes.
-    //
-    // To give an example as to the difficulty of handling periods where the start time may
-    // change, if a single period manifest is refreshed with another manifest with a single
-    // period, and both the start and end times are increased, then the only way to determine
-    // if it's a new period or an old one that has changed is to look through the segments of
-    // each playlist and determine the presentation time bounds to find a match. In addition,
-    // if the period start changed to exceed the old period end, then there would be no
-    // match, and it would not be possible to determine whether the refreshed period is a new
-    // one or the old one.
-
-    var oldPlaylists = oldManifest.playlists.concat(getMediaGroupPlaylists(oldManifest));
-    var newPlaylists = newManifest.playlists.concat(getMediaGroupPlaylists(newManifest)); // Save all seen timelineStarts to the new manifest. Although this potentially means that
-    // there's a "memory leak" in that it will never stop growing, in reality, only a couple
-    // of properties are saved for each seen Period. Even long running live streams won't
-    // generate too many Periods, unless the stream is watched for decades. In the future,
-    // this can be optimized by mapping to discontinuity sequence numbers for each timeline,
-    // but it may not become an issue, and the additional info can be useful for debugging.
-
-    newManifest.timelineStarts = getUniqueTimelineStarts([oldManifest.timelineStarts, newManifest.timelineStarts]);
-    updateSequenceNumbers({
-      oldPlaylists: oldPlaylists,
-      newPlaylists: newPlaylists,
-      timelineStarts: newManifest.timelineStarts
-    });
-    return newManifest;
-  };
-
-  var generateSidxKey = function generateSidxKey(sidx) {
-    return sidx && sidx.uri + '-' + byteRangeToString(sidx.byterange);
-  };
-
-  var mergeDiscontiguousPlaylists = function mergeDiscontiguousPlaylists(playlists) {
-    var mergedPlaylists = values(playlists.reduce(function (acc, playlist) {
-      // assuming playlist IDs are the same across periods
-      // TODO: handle multiperiod where representation sets are not the same
-      // across periods
-      var name = playlist.attributes.id + (playlist.attributes.lang || '');
-
-      if (!acc[name]) {
-        // First Period
-        acc[name] = playlist;
-        acc[name].attributes.timelineStarts = [];
-      } else {
-        // Subsequent Periods
-        if (playlist.segments) {
-          var _acc$name$segments; // first segment of subsequent periods signal a discontinuity
-
-
-          if (playlist.segments[0]) {
-            playlist.segments[0].discontinuity = true;
-          }
-
-          (_acc$name$segments = acc[name].segments).push.apply(_acc$name$segments, playlist.segments);
-        } // bubble up contentProtection, this assumes all DRM content
-        // has the same contentProtection
-
-
-        if (playlist.attributes.contentProtection) {
-          acc[name].attributes.contentProtection = playlist.attributes.contentProtection;
-        }
-      }
-
-      acc[name].attributes.timelineStarts.push({
-        // Although they represent the same number, it's important to have both to make it
-        // compatible with HLS potentially having a similar attribute.
-        start: playlist.attributes.periodStart,
-        timeline: playlist.attributes.periodStart
-      });
-      return acc;
-    }, {}));
-    return mergedPlaylists.map(function (playlist) {
-      playlist.discontinuityStarts = findIndexes(playlist.segments || [], 'discontinuity');
-      return playlist;
-    });
-  };
-
-  var addSidxSegmentsToPlaylist = function addSidxSegmentsToPlaylist(playlist, sidxMapping) {
-    var sidxKey = generateSidxKey(playlist.sidx);
-    var sidxMatch = sidxKey && sidxMapping[sidxKey] && sidxMapping[sidxKey].sidx;
-
-    if (sidxMatch) {
-      addSidxSegmentsToPlaylist$1(playlist, sidxMatch, playlist.sidx.resolvedUri);
-    }
-
-    return playlist;
-  };
-
-  var addSidxSegmentsToPlaylists = function addSidxSegmentsToPlaylists(playlists, sidxMapping) {
-    if (sidxMapping === void 0) {
-      sidxMapping = {};
-    }
-
-    if (!Object.keys(sidxMapping).length) {
-      return playlists;
-    }
-
-    for (var i in playlists) {
-      playlists[i] = addSidxSegmentsToPlaylist(playlists[i], sidxMapping);
-    }
-
-    return playlists;
-  };
-
-  var formatAudioPlaylist = function formatAudioPlaylist(_ref, isAudioOnly) {
-    var _attributes;
-
-    var attributes = _ref.attributes,
-        segments = _ref.segments,
-        sidx = _ref.sidx,
-        mediaSequence = _ref.mediaSequence,
-        discontinuitySequence = _ref.discontinuitySequence,
-        discontinuityStarts = _ref.discontinuityStarts;
-    var playlist = {
-      attributes: (_attributes = {
-        NAME: attributes.id,
-        BANDWIDTH: attributes.bandwidth,
-        CODECS: attributes.codecs
-      }, _attributes['PROGRAM-ID'] = 1, _attributes),
-      uri: '',
-      endList: attributes.type === 'static',
-      timeline: attributes.periodStart,
-      resolvedUri: '',
-      targetDuration: attributes.duration,
-      discontinuitySequence: discontinuitySequence,
-      discontinuityStarts: discontinuityStarts,
-      timelineStarts: attributes.timelineStarts,
-      mediaSequence: mediaSequence,
-      segments: segments
-    };
-
-    if (attributes.contentProtection) {
-      playlist.contentProtection = attributes.contentProtection;
-    }
-
-    if (sidx) {
-      playlist.sidx = sidx;
-    }
-
-    if (isAudioOnly) {
-      playlist.attributes.AUDIO = 'audio';
-      playlist.attributes.SUBTITLES = 'subs';
-    }
-
-    return playlist;
-  };
-
-  var formatVttPlaylist = function formatVttPlaylist(_ref2) {
-    var _m3u8Attributes;
-
-    var attributes = _ref2.attributes,
-        segments = _ref2.segments,
-        mediaSequence = _ref2.mediaSequence,
-        discontinuityStarts = _ref2.discontinuityStarts,
-        discontinuitySequence = _ref2.discontinuitySequence;
-
-    if (typeof segments === 'undefined') {
-      // vtt tracks may use single file in BaseURL
-      segments = [{
-        uri: attributes.baseUrl,
-        timeline: attributes.periodStart,
-        resolvedUri: attributes.baseUrl || '',
-        duration: attributes.sourceDuration,
-        number: 0
-      }]; // targetDuration should be the same duration as the only segment
-
-      attributes.duration = attributes.sourceDuration;
-    }
-
-    var m3u8Attributes = (_m3u8Attributes = {
-      NAME: attributes.id,
-      BANDWIDTH: attributes.bandwidth
-    }, _m3u8Attributes['PROGRAM-ID'] = 1, _m3u8Attributes);
-
-    if (attributes.codecs) {
-      m3u8Attributes.CODECS = attributes.codecs;
-    }
-
-    return {
-      attributes: m3u8Attributes,
-      uri: '',
-      endList: attributes.type === 'static',
-      timeline: attributes.periodStart,
-      resolvedUri: attributes.baseUrl || '',
-      targetDuration: attributes.duration,
-      timelineStarts: attributes.timelineStarts,
-      discontinuityStarts: discontinuityStarts,
-      discontinuitySequence: discontinuitySequence,
-      mediaSequence: mediaSequence,
-      segments: segments
-    };
-  };
-
-  var organizeAudioPlaylists = function organizeAudioPlaylists(playlists, sidxMapping, isAudioOnly) {
-    if (sidxMapping === void 0) {
-      sidxMapping = {};
-    }
-
-    if (isAudioOnly === void 0) {
-      isAudioOnly = false;
-    }
-
-    var mainPlaylist;
-    var formattedPlaylists = playlists.reduce(function (a, playlist) {
-      var role = playlist.attributes.role && playlist.attributes.role.value || '';
-      var language = playlist.attributes.lang || '';
-      var label = playlist.attributes.label || 'main';
-
-      if (language && !playlist.attributes.label) {
-        var roleLabel = role ? " (" + role + ")" : '';
-        label = "" + playlist.attributes.lang + roleLabel;
-      }
-
-      if (!a[label]) {
-        a[label] = {
-          language: language,
-          autoselect: true,
-          "default": role === 'main',
-          playlists: [],
-          uri: ''
-        };
-      }
-
-      var formatted = addSidxSegmentsToPlaylist(formatAudioPlaylist(playlist, isAudioOnly), sidxMapping);
-      a[label].playlists.push(formatted);
-
-      if (typeof mainPlaylist === 'undefined' && role === 'main') {
-        mainPlaylist = playlist;
-        mainPlaylist["default"] = true;
-      }
-
-      return a;
-    }, {}); // if no playlists have role "main", mark the first as main
-
-    if (!mainPlaylist) {
-      var firstLabel = Object.keys(formattedPlaylists)[0];
-      formattedPlaylists[firstLabel]["default"] = true;
-    }
-
-    return formattedPlaylists;
-  };
-
-  var organizeVttPlaylists = function organizeVttPlaylists(playlists, sidxMapping) {
-    if (sidxMapping === void 0) {
-      sidxMapping = {};
-    }
-
-    return playlists.reduce(function (a, playlist) {
-      var label = playlist.attributes.lang || 'text';
-
-      if (!a[label]) {
-        a[label] = {
-          language: label,
-          "default": false,
-          autoselect: false,
-          playlists: [],
-          uri: ''
-        };
-      }
-
-      a[label].playlists.push(addSidxSegmentsToPlaylist(formatVttPlaylist(playlist), sidxMapping));
-      return a;
-    }, {});
-  };
-
-  var organizeCaptionServices = function organizeCaptionServices(captionServices) {
-    return captionServices.reduce(function (svcObj, svc) {
-      if (!svc) {
-        return svcObj;
-      }
-
-      svc.forEach(function (service) {
-        var channel = service.channel,
-            language = service.language;
-        svcObj[language] = {
-          autoselect: false,
-          "default": false,
-          instreamId: channel,
-          language: language
-        };
-
-        if (service.hasOwnProperty('aspectRatio')) {
-          svcObj[language].aspectRatio = service.aspectRatio;
-        }
-
-        if (service.hasOwnProperty('easyReader')) {
-          svcObj[language].easyReader = service.easyReader;
-        }
-
-        if (service.hasOwnProperty('3D')) {
-          svcObj[language]['3D'] = service['3D'];
-        }
-      });
-      return svcObj;
-    }, {});
-  };
-
-  var formatVideoPlaylist = function formatVideoPlaylist(_ref3) {
-    var _attributes2;
-
-    var attributes = _ref3.attributes,
-        segments = _ref3.segments,
-        sidx = _ref3.sidx,
-        discontinuityStarts = _ref3.discontinuityStarts;
-    var playlist = {
-      attributes: (_attributes2 = {
-        NAME: attributes.id,
-        AUDIO: 'audio',
-        SUBTITLES: 'subs',
-        RESOLUTION: {
-          width: attributes.width,
-          height: attributes.height
-        },
-        CODECS: attributes.codecs,
-        BANDWIDTH: attributes.bandwidth
-      }, _attributes2['PROGRAM-ID'] = 1, _attributes2),
-      uri: '',
-      endList: attributes.type === 'static',
-      timeline: attributes.periodStart,
-      resolvedUri: '',
-      targetDuration: attributes.duration,
-      discontinuityStarts: discontinuityStarts,
-      timelineStarts: attributes.timelineStarts,
-      segments: segments
-    };
-
-    if (attributes.contentProtection) {
-      playlist.contentProtection = attributes.contentProtection;
-    }
-
-    if (sidx) {
-      playlist.sidx = sidx;
-    }
-
-    return playlist;
-  };
-
-  var videoOnly = function videoOnly(_ref4) {
-    var attributes = _ref4.attributes;
-    return attributes.mimeType === 'video/mp4' || attributes.mimeType === 'video/webm' || attributes.contentType === 'video';
-  };
-
-  var audioOnly = function audioOnly(_ref5) {
-    var attributes = _ref5.attributes;
-    return attributes.mimeType === 'audio/mp4' || attributes.mimeType === 'audio/webm' || attributes.contentType === 'audio';
-  };
-
-  var vttOnly = function vttOnly(_ref6) {
-    var attributes = _ref6.attributes;
-    return attributes.mimeType === 'text/vtt' || attributes.contentType === 'text';
-  };
-  /**
-   * Contains start and timeline properties denoting a timeline start. For DASH, these will
-   * be the same number.
-   *
-   * @typedef {Object} TimelineStart
-   * @property {number} start - the start time of the timeline
-   * @property {number} timeline - the timeline number
-   */
-
-  /**
-   * Adds appropriate media and discontinuity sequence values to the segments and playlists.
-   *
-   * Throughout mpd-parser, the `number` attribute is used in relation to `startNumber`, a
-   * DASH specific attribute used in constructing segment URI's from templates. However, from
-   * an HLS perspective, the `number` attribute on a segment would be its `mediaSequence`
-   * value, which should start at the original media sequence value (or 0) and increment by 1
-   * for each segment thereafter. Since DASH's `startNumber` values are independent per
-   * period, it doesn't make sense to use it for `number`. Instead, assume everything starts
-   * from a 0 mediaSequence value and increment from there.
-   *
-   * Note that VHS currently doesn't use the `number` property, but it can be helpful for
-   * debugging and making sense of the manifest.
-   *
-   * For live playlists, to account for values increasing in manifests when periods are
-   * removed on refreshes, merging logic should be used to update the numbers to their
-   * appropriate values (to ensure they're sequential and increasing).
-   *
-   * @param {Object[]} playlists - the playlists to update
-   * @param {TimelineStart[]} timelineStarts - the timeline starts for the manifest
-   */
-
-
-  var addMediaSequenceValues = function addMediaSequenceValues(playlists, timelineStarts) {
-    // increment all segments sequentially
-    playlists.forEach(function (playlist) {
-      playlist.mediaSequence = 0;
-      playlist.discontinuitySequence = findIndex(timelineStarts, function (_ref7) {
-        var timeline = _ref7.timeline;
-        return timeline === playlist.timeline;
-      });
-
-      if (!playlist.segments) {
-        return;
-      }
-
-      playlist.segments.forEach(function (segment, index) {
-        segment.number = index;
-      });
-    });
-  };
-  /**
-   * Given a media group object, flattens all playlists within the media group into a single
-   * array.
-   *
-   * @param {Object} mediaGroupObject - the media group object
-   *
-   * @return {Object[]}
-   *         The media group playlists
-   */
-
-
-  var flattenMediaGroupPlaylists = function flattenMediaGroupPlaylists(mediaGroupObject) {
-    if (!mediaGroupObject) {
-      return [];
-    }
-
-    return Object.keys(mediaGroupObject).reduce(function (acc, label) {
-      var labelContents = mediaGroupObject[label];
-      return acc.concat(labelContents.playlists);
-    }, []);
-  };
-
-  var toM3u8 = function toM3u8(_ref8) {
-    var _mediaGroups;
-
-    var dashPlaylists = _ref8.dashPlaylists,
-        locations = _ref8.locations,
-        _ref8$sidxMapping = _ref8.sidxMapping,
-        sidxMapping = _ref8$sidxMapping === void 0 ? {} : _ref8$sidxMapping,
-        previousManifest = _ref8.previousManifest;
-
-    if (!dashPlaylists.length) {
-      return {};
-    } // grab all main manifest attributes
-
-
-    var _dashPlaylists$0$attr = dashPlaylists[0].attributes,
-        duration = _dashPlaylists$0$attr.sourceDuration,
-        type = _dashPlaylists$0$attr.type,
-        suggestedPresentationDelay = _dashPlaylists$0$attr.suggestedPresentationDelay,
-        minimumUpdatePeriod = _dashPlaylists$0$attr.minimumUpdatePeriod;
-    var videoPlaylists = mergeDiscontiguousPlaylists(dashPlaylists.filter(videoOnly)).map(formatVideoPlaylist);
-    var audioPlaylists = mergeDiscontiguousPlaylists(dashPlaylists.filter(audioOnly));
-    var vttPlaylists = mergeDiscontiguousPlaylists(dashPlaylists.filter(vttOnly));
-    var captions = dashPlaylists.map(function (playlist) {
-      return playlist.attributes.captionServices;
-    }).filter(Boolean);
-    var manifest = {
-      allowCache: true,
-      discontinuityStarts: [],
-      segments: [],
-      endList: true,
-      mediaGroups: (_mediaGroups = {
-        AUDIO: {},
-        VIDEO: {}
-      }, _mediaGroups['CLOSED-CAPTIONS'] = {}, _mediaGroups.SUBTITLES = {}, _mediaGroups),
-      uri: '',
-      duration: duration,
-      playlists: addSidxSegmentsToPlaylists(videoPlaylists, sidxMapping)
-    };
-
-    if (minimumUpdatePeriod >= 0) {
-      manifest.minimumUpdatePeriod = minimumUpdatePeriod * 1000;
-    }
-
-    if (locations) {
-      manifest.locations = locations;
-    }
-
-    if (type === 'dynamic') {
-      manifest.suggestedPresentationDelay = suggestedPresentationDelay;
-    }
-
-    var isAudioOnly = manifest.playlists.length === 0;
-    var organizedAudioGroup = audioPlaylists.length ? organizeAudioPlaylists(audioPlaylists, sidxMapping, isAudioOnly) : null;
-    var organizedVttGroup = vttPlaylists.length ? organizeVttPlaylists(vttPlaylists, sidxMapping) : null;
-    var formattedPlaylists = videoPlaylists.concat(flattenMediaGroupPlaylists(organizedAudioGroup), flattenMediaGroupPlaylists(organizedVttGroup));
-    var playlistTimelineStarts = formattedPlaylists.map(function (_ref9) {
-      var timelineStarts = _ref9.timelineStarts;
-      return timelineStarts;
-    });
-    manifest.timelineStarts = getUniqueTimelineStarts(playlistTimelineStarts);
-    addMediaSequenceValues(formattedPlaylists, manifest.timelineStarts);
-
-    if (organizedAudioGroup) {
-      manifest.mediaGroups.AUDIO.audio = organizedAudioGroup;
-    }
-
-    if (organizedVttGroup) {
-      manifest.mediaGroups.SUBTITLES.subs = organizedVttGroup;
-    }
-
-    if (captions.length) {
-      manifest.mediaGroups['CLOSED-CAPTIONS'].cc = organizeCaptionServices(captions);
-    }
-
-    if (previousManifest) {
-      return positionManifestOnTimeline({
-        oldManifest: previousManifest,
-        newManifest: manifest
-      });
-    }
-
-    return manifest;
-  };
-  /**
-   * Calculates the R (repetition) value for a live stream (for the final segment
-   * in a manifest where the r value is negative 1)
-   *
-   * @param {Object} attributes
-   *        Object containing all inherited attributes from parent elements with attribute
-   *        names as keys
-   * @param {number} time
-   *        current time (typically the total time up until the final segment)
-   * @param {number} duration
-   *        duration property for the given <S />
-   *
-   * @return {number}
-   *        R value to reach the end of the given period
-   */
-
-
-  var getLiveRValue = function getLiveRValue(attributes, time, duration) {
-    var NOW = attributes.NOW,
-        clientOffset = attributes.clientOffset,
-        availabilityStartTime = attributes.availabilityStartTime,
-        _attributes$timescale = attributes.timescale,
-        timescale = _attributes$timescale === void 0 ? 1 : _attributes$timescale,
-        _attributes$periodSta = attributes.periodStart,
-        periodStart = _attributes$periodSta === void 0 ? 0 : _attributes$periodSta,
-        _attributes$minimumUp = attributes.minimumUpdatePeriod,
-        minimumUpdatePeriod = _attributes$minimumUp === void 0 ? 0 : _attributes$minimumUp;
-    var now = (NOW + clientOffset) / 1000;
-    var periodStartWC = availabilityStartTime + periodStart;
-    var periodEndWC = now + minimumUpdatePeriod;
-    var periodDuration = periodEndWC - periodStartWC;
-    return Math.ceil((periodDuration * timescale - time) / duration);
-  };
-  /**
-   * Uses information provided by SegmentTemplate.SegmentTimeline to determine segment
-   * timing and duration
-   *
-   * @param {Object} attributes
-   *        Object containing all inherited attributes from parent elements with attribute
-   *        names as keys
-   * @param {Object[]} segmentTimeline
-   *        List of objects representing the attributes of each S element contained within
-   *
-   * @return {{number: number, duration: number, time: number, timeline: number}[]}
-   *         List of Objects with segment timing and duration info
-   */
-
-
-  var parseByTimeline = function parseByTimeline(attributes, segmentTimeline) {
-    var type = attributes.type,
-        _attributes$minimumUp2 = attributes.minimumUpdatePeriod,
-        minimumUpdatePeriod = _attributes$minimumUp2 === void 0 ? 0 : _attributes$minimumUp2,
-        _attributes$media = attributes.media,
-        media = _attributes$media === void 0 ? '' : _attributes$media,
-        sourceDuration = attributes.sourceDuration,
-        _attributes$timescale2 = attributes.timescale,
-        timescale = _attributes$timescale2 === void 0 ? 1 : _attributes$timescale2,
-        _attributes$startNumb = attributes.startNumber,
-        startNumber = _attributes$startNumb === void 0 ? 1 : _attributes$startNumb,
-        timeline = attributes.periodStart;
-    var segments = [];
-    var time = -1;
-
-    for (var sIndex = 0; sIndex < segmentTimeline.length; sIndex++) {
-      var S = segmentTimeline[sIndex];
-      var duration = S.d;
-      var repeat = S.r || 0;
-      var segmentTime = S.t || 0;
-
-      if (time < 0) {
-        // first segment
-        time = segmentTime;
-      }
-
-      if (segmentTime && segmentTime > time) {
-        // discontinuity
-        // TODO: How to handle this type of discontinuity
-        // timeline++ here would treat it like HLS discontuity and content would
-        // get appended without gap
-        // E.G.
-        //  <S t="0" d="1" />
-        //  <S d="1" />
-        //  <S d="1" />
-        //  <S t="5" d="1" />
-        // would have $Time$ values of [0, 1, 2, 5]
-        // should this be appened at time positions [0, 1, 2, 3],(#EXT-X-DISCONTINUITY)
-        // or [0, 1, 2, gap, gap, 5]? (#EXT-X-GAP)
-        // does the value of sourceDuration consider this when calculating arbitrary
-        // negative @r repeat value?
-        // E.G. Same elements as above with this added at the end
-        //  <S d="1" r="-1" />
-        //  with a sourceDuration of 10
-        // Would the 2 gaps be included in the time duration calculations resulting in
-        // 8 segments with $Time$ values of [0, 1, 2, 5, 6, 7, 8, 9] or 10 segments
-        // with $Time$ values of [0, 1, 2, 5, 6, 7, 8, 9, 10, 11] ?
-        time = segmentTime;
-      }
-
-      var count = void 0;
-
-      if (repeat < 0) {
-        var nextS = sIndex + 1;
-
-        if (nextS === segmentTimeline.length) {
-          // last segment
-          if (type === 'dynamic' && minimumUpdatePeriod > 0 && media.indexOf('$Number$') > 0) {
-            count = getLiveRValue(attributes, time, duration);
-          } else {
-            // TODO: This may be incorrect depending on conclusion of TODO above
-            count = (sourceDuration * timescale - time) / duration;
-          }
-        } else {
-          count = (segmentTimeline[nextS].t - time) / duration;
-        }
-      } else {
-        count = repeat + 1;
-      }
-
-      var end = startNumber + segments.length + count;
-      var number = startNumber + segments.length;
-
-      while (number < end) {
-        segments.push({
-          number: number,
-          duration: duration / timescale,
-          time: time,
-          timeline: timeline
-        });
-        time += duration;
-        number++;
-      }
-    }
-
-    return segments;
-  };
-
-  var identifierPattern = /\$([A-z]*)(?:(%0)([0-9]+)d)?\$/g;
-  /**
-   * Replaces template identifiers with corresponding values. To be used as the callback
-   * for String.prototype.replace
-   *
-   * @name replaceCallback
-   * @function
-   * @param {string} match
-   *        Entire match of identifier
-   * @param {string} identifier
-   *        Name of matched identifier
-   * @param {string} format
-   *        Format tag string. Its presence indicates that padding is expected
-   * @param {string} width
-   *        Desired length of the replaced value. Values less than this width shall be left
-   *        zero padded
-   * @return {string}
-   *         Replacement for the matched identifier
-   */
-
-  /**
-   * Returns a function to be used as a callback for String.prototype.replace to replace
-   * template identifiers
-   *
-   * @param {Obect} values
-   *        Object containing values that shall be used to replace known identifiers
-   * @param {number} values.RepresentationID
-   *        Value of the Representation@id attribute
-   * @param {number} values.Number
-   *        Number of the corresponding segment
-   * @param {number} values.Bandwidth
-   *        Value of the Representation@bandwidth attribute.
-   * @param {number} values.Time
-   *        Timestamp value of the corresponding segment
-   * @return {replaceCallback}
-   *         Callback to be used with String.prototype.replace to replace identifiers
-   */
-
-  var identifierReplacement = function identifierReplacement(values) {
-    return function (match, identifier, format, width) {
-      if (match === '$$') {
-        // escape sequence
-        return '$';
-      }
-
-      if (typeof values[identifier] === 'undefined') {
-        return match;
-      }
-
-      var value = '' + values[identifier];
-
-      if (identifier === 'RepresentationID') {
-        // Format tag shall not be present with RepresentationID
-        return value;
-      }
-
-      if (!format) {
-        width = 1;
-      } else {
-        width = parseInt(width, 10);
-      }
-
-      if (value.length >= width) {
-        return value;
-      }
-
-      return "" + new Array(width - value.length + 1).join('0') + value;
-    };
-  };
-  /**
-   * Constructs a segment url from a template string
-   *
-   * @param {string} url
-   *        Template string to construct url from
-   * @param {Obect} values
-   *        Object containing values that shall be used to replace known identifiers
-   * @param {number} values.RepresentationID
-   *        Value of the Representation@id attribute
-   * @param {number} values.Number
-   *        Number of the corresponding segment
-   * @param {number} values.Bandwidth
-   *        Value of the Representation@bandwidth attribute.
-   * @param {number} values.Time
-   *        Timestamp value of the corresponding segment
-   * @return {string}
-   *         Segment url with identifiers replaced
-   */
-
-
-  var constructTemplateUrl = function constructTemplateUrl(url, values) {
-    return url.replace(identifierPattern, identifierReplacement(values));
-  };
-  /**
-   * Generates a list of objects containing timing and duration information about each
-   * segment needed to generate segment uris and the complete segment object
-   *
-   * @param {Object} attributes
-   *        Object containing all inherited attributes from parent elements with attribute
-   *        names as keys
-   * @param {Object[]|undefined} segmentTimeline
-   *        List of objects representing the attributes of each S element contained within
-   *        the SegmentTimeline element
-   * @return {{number: number, duration: number, time: number, timeline: number}[]}
-   *         List of Objects with segment timing and duration info
-   */
-
-
-  var parseTemplateInfo = function parseTemplateInfo(attributes, segmentTimeline) {
-    if (!attributes.duration && !segmentTimeline) {
-      // if neither @duration or SegmentTimeline are present, then there shall be exactly
-      // one media segment
-      return [{
-        number: attributes.startNumber || 1,
-        duration: attributes.sourceDuration,
-        time: 0,
-        timeline: attributes.periodStart
-      }];
-    }
-
-    if (attributes.duration) {
-      return parseByDuration(attributes);
-    }
-
-    return parseByTimeline(attributes, segmentTimeline);
-  };
-  /**
-   * Generates a list of segments using information provided by the SegmentTemplate element
-   *
-   * @param {Object} attributes
-   *        Object containing all inherited attributes from parent elements with attribute
-   *        names as keys
-   * @param {Object[]|undefined} segmentTimeline
-   *        List of objects representing the attributes of each S element contained within
-   *        the SegmentTimeline element
-   * @return {Object[]}
-   *         List of segment objects
-   */
-
-
-  var segmentsFromTemplate = function segmentsFromTemplate(attributes, segmentTimeline) {
-    var templateValues = {
-      RepresentationID: attributes.id,
-      Bandwidth: attributes.bandwidth || 0
-    };
-    var _attributes$initializ = attributes.initialization,
-        initialization = _attributes$initializ === void 0 ? {
-      sourceURL: '',
-      range: ''
-    } : _attributes$initializ;
-    var mapSegment = urlTypeToSegment({
-      baseUrl: attributes.baseUrl,
-      source: constructTemplateUrl(initialization.sourceURL, templateValues),
-      range: initialization.range
-    });
-    var segments = parseTemplateInfo(attributes, segmentTimeline);
-    return segments.map(function (segment) {
-      templateValues.Number = segment.number;
-      templateValues.Time = segment.time;
-      var uri = constructTemplateUrl(attributes.media || '', templateValues); // See DASH spec section 5.3.9.2.2
-      // - if timescale isn't present on any level, default to 1.
-
-      var timescale = attributes.timescale || 1; // - if presentationTimeOffset isn't present on any level, default to 0
-
-      var presentationTimeOffset = attributes.presentationTimeOffset || 0;
-      var presentationTime = // Even if the @t attribute is not specified for the segment, segment.time is
-      // calculated in mpd-parser prior to this, so it's assumed to be available.
-      attributes.periodStart + (segment.time - presentationTimeOffset) / timescale;
-      var map = {
-        uri: uri,
-        timeline: segment.timeline,
-        duration: segment.duration,
-        resolvedUri: resolveUrl$1(attributes.baseUrl || '', uri),
-        map: mapSegment,
-        number: segment.number,
-        presentationTime: presentationTime
-      };
-      return map;
-    });
-  };
-  /**
-   * Converts a <SegmentUrl> (of type URLType from the DASH spec 5.3.9.2 Table 14)
-   * to an object that matches the output of a segment in videojs/mpd-parser
-   *
-   * @param {Object} attributes
-   *   Object containing all inherited attributes from parent elements with attribute
-   *   names as keys
-   * @param {Object} segmentUrl
-   *   <SegmentURL> node to translate into a segment object
-   * @return {Object} translated segment object
-   */
-
-
-  var SegmentURLToSegmentObject = function SegmentURLToSegmentObject(attributes, segmentUrl) {
-    var baseUrl = attributes.baseUrl,
-        _attributes$initializ = attributes.initialization,
-        initialization = _attributes$initializ === void 0 ? {} : _attributes$initializ;
-    var initSegment = urlTypeToSegment({
-      baseUrl: baseUrl,
-      source: initialization.sourceURL,
-      range: initialization.range
-    });
-    var segment = urlTypeToSegment({
-      baseUrl: baseUrl,
-      source: segmentUrl.media,
-      range: segmentUrl.mediaRange
-    });
-    segment.map = initSegment;
-    return segment;
-  };
-  /**
-   * Generates a list of segments using information provided by the SegmentList element
-   * SegmentList (DASH SPEC Section 5.3.9.3.2) contains a set of <SegmentURL> nodes.  Each
-   * node should be translated into segment.
-   *
-   * @param {Object} attributes
-   *   Object containing all inherited attributes from parent elements with attribute
-   *   names as keys
-   * @param {Object[]|undefined} segmentTimeline
-   *        List of objects representing the attributes of each S element contained within
-   *        the SegmentTimeline element
-   * @return {Object.<Array>} list of segments
-   */
-
-
-  var segmentsFromList = function segmentsFromList(attributes, segmentTimeline) {
-    var duration = attributes.duration,
-        _attributes$segmentUr = attributes.segmentUrls,
-        segmentUrls = _attributes$segmentUr === void 0 ? [] : _attributes$segmentUr,
-        periodStart = attributes.periodStart; // Per spec (5.3.9.2.1) no way to determine segment duration OR
-    // if both SegmentTimeline and @duration are defined, it is outside of spec.
-
-    if (!duration && !segmentTimeline || duration && segmentTimeline) {
-      throw new Error(errors.SEGMENT_TIME_UNSPECIFIED);
-    }
-
-    var segmentUrlMap = segmentUrls.map(function (segmentUrlObject) {
-      return SegmentURLToSegmentObject(attributes, segmentUrlObject);
-    });
-    var segmentTimeInfo;
-
-    if (duration) {
-      segmentTimeInfo = parseByDuration(attributes);
-    }
-
-    if (segmentTimeline) {
-      segmentTimeInfo = parseByTimeline(attributes, segmentTimeline);
-    }
-
-    var segments = segmentTimeInfo.map(function (segmentTime, index) {
-      if (segmentUrlMap[index]) {
-        var segment = segmentUrlMap[index]; // See DASH spec section 5.3.9.2.2
-        // - if timescale isn't present on any level, default to 1.
-
-        var timescale = attributes.timescale || 1; // - if presentationTimeOffset isn't present on any level, default to 0
-
-        var presentationTimeOffset = attributes.presentationTimeOffset || 0;
-        segment.timeline = segmentTime.timeline;
-        segment.duration = segmentTime.duration;
-        segment.number = segmentTime.number;
-        segment.presentationTime = periodStart + (segmentTime.time - presentationTimeOffset) / timescale;
-        return segment;
-      } // Since we're mapping we should get rid of any blank segments (in case
-      // the given SegmentTimeline is handling for more elements than we have
-      // SegmentURLs for).
-
-    }).filter(function (segment) {
-      return segment;
-    });
-    return segments;
-  };
-
-  var generateSegments = function generateSegments(_ref) {
-    var attributes = _ref.attributes,
-        segmentInfo = _ref.segmentInfo;
-    var segmentAttributes;
-    var segmentsFn;
-
-    if (segmentInfo.template) {
-      segmentsFn = segmentsFromTemplate;
-      segmentAttributes = merge(attributes, segmentInfo.template);
-    } else if (segmentInfo.base) {
-      segmentsFn = segmentsFromBase;
-      segmentAttributes = merge(attributes, segmentInfo.base);
-    } else if (segmentInfo.list) {
-      segmentsFn = segmentsFromList;
-      segmentAttributes = merge(attributes, segmentInfo.list);
-    }
-
-    var segmentsInfo = {
-      attributes: attributes
-    };
-
-    if (!segmentsFn) {
-      return segmentsInfo;
-    }
-
-    var segments = segmentsFn(segmentAttributes, segmentInfo.segmentTimeline); // The @duration attribute will be used to determin the playlist's targetDuration which
-    // must be in seconds. Since we've generated the segment list, we no longer need
-    // @duration to be in @timescale units, so we can convert it here.
-
-    if (segmentAttributes.duration) {
-      var _segmentAttributes = segmentAttributes,
-          duration = _segmentAttributes.duration,
-          _segmentAttributes$ti = _segmentAttributes.timescale,
-          timescale = _segmentAttributes$ti === void 0 ? 1 : _segmentAttributes$ti;
-      segmentAttributes.duration = duration / timescale;
-    } else if (segments.length) {
-      // if there is no @duration attribute, use the largest segment duration as
-      // as target duration
-      segmentAttributes.duration = segments.reduce(function (max, segment) {
-        return Math.max(max, Math.ceil(segment.duration));
-      }, 0);
-    } else {
-      segmentAttributes.duration = 0;
-    }
-
-    segmentsInfo.attributes = segmentAttributes;
-    segmentsInfo.segments = segments; // This is a sidx box without actual segment information
-
-    if (segmentInfo.base && segmentAttributes.indexRange) {
-      segmentsInfo.sidx = segments[0];
-      segmentsInfo.segments = [];
-    }
-
-    return segmentsInfo;
-  };
-
-  var toPlaylists = function toPlaylists(representations) {
-    return representations.map(generateSegments);
-  };
-
-  var findChildren = function findChildren(element, name) {
-    return from(element.childNodes).filter(function (_ref) {
-      var tagName = _ref.tagName;
-      return tagName === name;
-    });
-  };
-
-  var getContent = function getContent(element) {
-    return element.textContent.trim();
-  };
-
-  var parseDuration = function parseDuration(str) {
-    var SECONDS_IN_YEAR = 365 * 24 * 60 * 60;
-    var SECONDS_IN_MONTH = 30 * 24 * 60 * 60;
-    var SECONDS_IN_DAY = 24 * 60 * 60;
-    var SECONDS_IN_HOUR = 60 * 60;
-    var SECONDS_IN_MIN = 60; // P10Y10M10DT10H10M10.1S
-
-    var durationRegex = /P(?:(\d*)Y)?(?:(\d*)M)?(?:(\d*)D)?(?:T(?:(\d*)H)?(?:(\d*)M)?(?:([\d.]*)S)?)?/;
-    var match = durationRegex.exec(str);
-
-    if (!match) {
-      return 0;
-    }
-
-    var _match$slice = match.slice(1),
-        year = _match$slice[0],
-        month = _match$slice[1],
-        day = _match$slice[2],
-        hour = _match$slice[3],
-        minute = _match$slice[4],
-        second = _match$slice[5];
-
-    return parseFloat(year || 0) * SECONDS_IN_YEAR + parseFloat(month || 0) * SECONDS_IN_MONTH + parseFloat(day || 0) * SECONDS_IN_DAY + parseFloat(hour || 0) * SECONDS_IN_HOUR + parseFloat(minute || 0) * SECONDS_IN_MIN + parseFloat(second || 0);
-  };
-
-  var parseDate = function parseDate(str) {
-    // Date format without timezone according to ISO 8601
-    // YYY-MM-DDThh:mm:ss.ssssss
-    var dateRegex = /^\d+-\d+-\d+T\d+:\d+:\d+(\.\d+)?$/; // If the date string does not specifiy a timezone, we must specifiy UTC. This is
-    // expressed by ending with 'Z'
-
-    if (dateRegex.test(str)) {
-      str += 'Z';
-    }
-
-    return Date.parse(str);
-  };
-
-  var parsers = {
-    /**
-     * Specifies the duration of the entire Media Presentation. Format is a duration string
-     * as specified in ISO 8601
-     *
-     * @param {string} value
-     *        value of attribute as a string
-     * @return {number}
-     *         The duration in seconds
-     */
-    mediaPresentationDuration: function mediaPresentationDuration(value) {
-      return parseDuration(value);
-    },
-
-    /**
-     * Specifies the Segment availability start time for all Segments referred to in this
-     * MPD. For a dynamic manifest, it specifies the anchor for the earliest availability
-     * time. Format is a date string as specified in ISO 8601
-     *
-     * @param {string} value
-     *        value of attribute as a string
-     * @return {number}
-     *         The date as seconds from unix epoch
-     */
-    availabilityStartTime: function availabilityStartTime(value) {
-      return parseDate(value) / 1000;
-    },
-
-    /**
-     * Specifies the smallest period between potential changes to the MPD. Format is a
-     * duration string as specified in ISO 8601
-     *
-     * @param {string} value
-     *        value of attribute as a string
-     * @return {number}
-     *         The duration in seconds
-     */
-    minimumUpdatePeriod: function minimumUpdatePeriod(value) {
-      return parseDuration(value);
-    },
-
-    /**
-     * Specifies the suggested presentation delay. Format is a
-     * duration string as specified in ISO 8601
-     *
-     * @param {string} value
-     *        value of attribute as a string
-     * @return {number}
-     *         The duration in seconds
-     */
-    suggestedPresentationDelay: function suggestedPresentationDelay(value) {
-      return parseDuration(value);
-    },
-
-    /**
-     * specifices the type of mpd. Can be either "static" or "dynamic"
-     *
-     * @param {string} value
-     *        value of attribute as a string
-     *
-     * @return {string}
-     *         The type as a string
-     */
-    type: function type(value) {
-      return value;
-    },
-
-    /**
-     * Specifies the duration of the smallest time shifting buffer for any Representation
-     * in the MPD. Format is a duration string as specified in ISO 8601
-     *
-     * @param {string} value
-     *        value of attribute as a string
-     * @return {number}
-     *         The duration in seconds
-     */
-    timeShiftBufferDepth: function timeShiftBufferDepth(value) {
-      return parseDuration(value);
-    },
-
-    /**
-     * Specifies the PeriodStart time of the Period relative to the availabilityStarttime.
-     * Format is a duration string as specified in ISO 8601
-     *
-     * @param {string} value
-     *        value of attribute as a string
-     * @return {number}
-     *         The duration in seconds
-     */
-    start: function start(value) {
-      return parseDuration(value);
-    },
-
-    /**
-     * Specifies the width of the visual presentation
-     *
-     * @param {string} value
-     *        value of attribute as a string
-     * @return {number}
-     *         The parsed width
-     */
-    width: function width(value) {
-      return parseInt(value, 10);
-    },
-
-    /**
-     * Specifies the height of the visual presentation
-     *
-     * @param {string} value
-     *        value of attribute as a string
-     * @return {number}
-     *         The parsed height
-     */
-    height: function height(value) {
-      return parseInt(value, 10);
-    },
-
-    /**
-     * Specifies the bitrate of the representation
-     *
-     * @param {string} value
-     *        value of attribute as a string
-     * @return {number}
-     *         The parsed bandwidth
-     */
-    bandwidth: function bandwidth(value) {
-      return parseInt(value, 10);
-    },
-
-    /**
-     * Specifies the number of the first Media Segment in this Representation in the Period
-     *
-     * @param {string} value
-     *        value of attribute as a string
-     * @return {number}
-     *         The parsed number
-     */
-    startNumber: function startNumber(value) {
-      return parseInt(value, 10);
-    },
-
-    /**
-     * Specifies the timescale in units per seconds
-     *
-     * @param {string} value
-     *        value of attribute as a string
-     * @return {number}
-     *         The parsed timescale
-     */
-    timescale: function timescale(value) {
-      return parseInt(value, 10);
-    },
-
-    /**
-     * Specifies the presentationTimeOffset.
-     *
-     * @param {string} value
-     *        value of the attribute as a string
-     *
-     * @return {number}
-     *         The parsed presentationTimeOffset
-     */
-    presentationTimeOffset: function presentationTimeOffset(value) {
-      return parseInt(value, 10);
-    },
-
-    /**
-     * Specifies the constant approximate Segment duration
-     * NOTE: The <Period> element also contains an @duration attribute. This duration
-     *       specifies the duration of the Period. This attribute is currently not
-     *       supported by the rest of the parser, however we still check for it to prevent
-     *       errors.
-     *
-     * @param {string} value
-     *        value of attribute as a string
-     * @return {number}
-     *         The parsed duration
-     */
-    duration: function duration(value) {
-      var parsedValue = parseInt(value, 10);
-
-      if (isNaN(parsedValue)) {
-        return parseDuration(value);
-      }
-
-      return parsedValue;
-    },
-
-    /**
-     * Specifies the Segment duration, in units of the value of the @timescale.
-     *
-     * @param {string} value
-     *        value of attribute as a string
-     * @return {number}
-     *         The parsed duration
-     */
-    d: function d(value) {
-      return parseInt(value, 10);
-    },
-
-    /**
-     * Specifies the MPD start time, in @timescale units, the first Segment in the series
-     * starts relative to the beginning of the Period
-     *
-     * @param {string} value
-     *        value of attribute as a string
-     * @return {number}
-     *         The parsed time
-     */
-    t: function t(value) {
-      return parseInt(value, 10);
-    },
-
-    /**
-     * Specifies the repeat count of the number of following contiguous Segments with the
-     * same duration expressed by the value of @d
-     *
-     * @param {string} value
-     *        value of attribute as a string
-     * @return {number}
-     *         The parsed number
-     */
-    r: function r(value) {
-      return parseInt(value, 10);
-    },
-
-    /**
-     * Default parser for all other attributes. Acts as a no-op and just returns the value
-     * as a string
-     *
-     * @param {string} value
-     *        value of attribute as a string
-     * @return {string}
-     *         Unparsed value
-     */
-    DEFAULT: function DEFAULT(value) {
-      return value;
-    }
-  };
-  /**
-   * Gets all the attributes and values of the provided node, parses attributes with known
-   * types, and returns an object with attribute names mapped to values.
-   *
-   * @param {Node} el
-   *        The node to parse attributes from
-   * @return {Object}
-   *         Object with all attributes of el parsed
-   */
-
-  var parseAttributes = function parseAttributes(el) {
-    if (!(el && el.attributes)) {
-      return {};
-    }
-
-    return from(el.attributes).reduce(function (a, e) {
-      var parseFn = parsers[e.name] || parsers.DEFAULT;
-      a[e.name] = parseFn(e.value);
-      return a;
-    }, {});
-  };
-
-  var keySystemsMap = {
-    'urn:uuid:1077efec-c0b2-4d02-ace3-3c1e52e2fb4b': 'org.w3.clearkey',
-    'urn:uuid:edef8ba9-79d6-4ace-a3c8-27dcd51d21ed': 'com.widevine.alpha',
-    'urn:uuid:9a04f079-9840-4286-ab92-e65be0885f95': 'com.microsoft.playready',
-    'urn:uuid:f239e769-efa3-4850-9c16-a903c6932efb': 'com.adobe.primetime'
-  };
-  /**
-   * Builds a list of urls that is the product of the reference urls and BaseURL values
-   *
-   * @param {string[]} referenceUrls
-   *        List of reference urls to resolve to
-   * @param {Node[]} baseUrlElements
-   *        List of BaseURL nodes from the mpd
-   * @return {string[]}
-   *         List of resolved urls
-   */
-
-  var buildBaseUrls = function buildBaseUrls(referenceUrls, baseUrlElements) {
-    if (!baseUrlElements.length) {
-      return referenceUrls;
-    }
-
-    return flatten(referenceUrls.map(function (reference) {
-      return baseUrlElements.map(function (baseUrlElement) {
-        return resolveUrl$1(reference, getContent(baseUrlElement));
-      });
-    }));
-  };
-  /**
-   * Contains all Segment information for its containing AdaptationSet
-   *
-   * @typedef {Object} SegmentInformation
-   * @property {Object|undefined} template
-   *           Contains the attributes for the SegmentTemplate node
-   * @property {Object[]|undefined} segmentTimeline
-   *           Contains a list of atrributes for each S node within the SegmentTimeline node
-   * @property {Object|undefined} list
-   *           Contains the attributes for the SegmentList node
-   * @property {Object|undefined} base
-   *           Contains the attributes for the SegmentBase node
-   */
-
-  /**
-   * Returns all available Segment information contained within the AdaptationSet node
-   *
-   * @param {Node} adaptationSet
-   *        The AdaptationSet node to get Segment information from
-   * @return {SegmentInformation}
-   *         The Segment information contained within the provided AdaptationSet
-   */
-
-
-  var getSegmentInformation = function getSegmentInformation(adaptationSet) {
-    var segmentTemplate = findChildren(adaptationSet, 'SegmentTemplate')[0];
-    var segmentList = findChildren(adaptationSet, 'SegmentList')[0];
-    var segmentUrls = segmentList && findChildren(segmentList, 'SegmentURL').map(function (s) {
-      return merge({
-        tag: 'SegmentURL'
-      }, parseAttributes(s));
-    });
-    var segmentBase = findChildren(adaptationSet, 'SegmentBase')[0];
-    var segmentTimelineParentNode = segmentList || segmentTemplate;
-    var segmentTimeline = segmentTimelineParentNode && findChildren(segmentTimelineParentNode, 'SegmentTimeline')[0];
-    var segmentInitializationParentNode = segmentList || segmentBase || segmentTemplate;
-    var segmentInitialization = segmentInitializationParentNode && findChildren(segmentInitializationParentNode, 'Initialization')[0]; // SegmentTemplate is handled slightly differently, since it can have both
-    // @initialization and an <Initialization> node.  @initialization can be templated,
-    // while the node can have a url and range specified.  If the <SegmentTemplate> has
-    // both @initialization and an <Initialization> subelement we opt to override with
-    // the node, as this interaction is not defined in the spec.
-
-    var template = segmentTemplate && parseAttributes(segmentTemplate);
-
-    if (template && segmentInitialization) {
-      template.initialization = segmentInitialization && parseAttributes(segmentInitialization);
-    } else if (template && template.initialization) {
-      // If it is @initialization we convert it to an object since this is the format that
-      // later functions will rely on for the initialization segment.  This is only valid
-      // for <SegmentTemplate>
-      template.initialization = {
-        sourceURL: template.initialization
-      };
-    }
-
-    var segmentInfo = {
-      template: template,
-      segmentTimeline: segmentTimeline && findChildren(segmentTimeline, 'S').map(function (s) {
-        return parseAttributes(s);
-      }),
-      list: segmentList && merge(parseAttributes(segmentList), {
-        segmentUrls: segmentUrls,
-        initialization: parseAttributes(segmentInitialization)
-      }),
-      base: segmentBase && merge(parseAttributes(segmentBase), {
-        initialization: parseAttributes(segmentInitialization)
-      })
-    };
-    Object.keys(segmentInfo).forEach(function (key) {
-      if (!segmentInfo[key]) {
-        delete segmentInfo[key];
-      }
-    });
-    return segmentInfo;
-  };
-  /**
-   * Contains Segment information and attributes needed to construct a Playlist object
-   * from a Representation
-   *
-   * @typedef {Object} RepresentationInformation
-   * @property {SegmentInformation} segmentInfo
-   *           Segment information for this Representation
-   * @property {Object} attributes
-   *           Inherited attributes for this Representation
-   */
-
-  /**
-   * Maps a Representation node to an object containing Segment information and attributes
-   *
-   * @name inheritBaseUrlsCallback
-   * @function
-   * @param {Node} representation
-   *        Representation node from the mpd
-   * @return {RepresentationInformation}
-   *         Representation information needed to construct a Playlist object
-   */
-
-  /**
-   * Returns a callback for Array.prototype.map for mapping Representation nodes to
-   * Segment information and attributes using inherited BaseURL nodes.
-   *
-   * @param {Object} adaptationSetAttributes
-   *        Contains attributes inherited by the AdaptationSet
-   * @param {string[]} adaptationSetBaseUrls
-   *        Contains list of resolved base urls inherited by the AdaptationSet
-   * @param {SegmentInformation} adaptationSetSegmentInfo
-   *        Contains Segment information for the AdaptationSet
-   * @return {inheritBaseUrlsCallback}
-   *         Callback map function
-   */
-
-
-  var inheritBaseUrls = function inheritBaseUrls(adaptationSetAttributes, adaptationSetBaseUrls, adaptationSetSegmentInfo) {
-    return function (representation) {
-      var repBaseUrlElements = findChildren(representation, 'BaseURL');
-      var repBaseUrls = buildBaseUrls(adaptationSetBaseUrls, repBaseUrlElements);
-      var attributes = merge(adaptationSetAttributes, parseAttributes(representation));
-      var representationSegmentInfo = getSegmentInformation(representation);
-      return repBaseUrls.map(function (baseUrl) {
-        return {
-          segmentInfo: merge(adaptationSetSegmentInfo, representationSegmentInfo),
-          attributes: merge(attributes, {
-            baseUrl: baseUrl
-          })
-        };
-      });
-    };
-  };
-  /**
-   * Tranforms a series of content protection nodes to
-   * an object containing pssh data by key system
-   *
-   * @param {Node[]} contentProtectionNodes
-   *        Content protection nodes
-   * @return {Object}
-   *        Object containing pssh data by key system
-   */
-
-
-  var generateKeySystemInformation = function generateKeySystemInformation(contentProtectionNodes) {
-    return contentProtectionNodes.reduce(function (acc, node) {
-      var attributes = parseAttributes(node); // Although it could be argued that according to the UUID RFC spec the UUID string (a-f chars) should be generated
-      // as a lowercase string it also mentions it should be treated as case-insensitive on input. Since the key system
-      // UUIDs in the keySystemsMap are hardcoded as lowercase in the codebase there isn't any reason not to do
-      // .toLowerCase() on the input UUID string from the manifest (at least I could not think of one).
-
-      if (attributes.schemeIdUri) {
-        attributes.schemeIdUri = attributes.schemeIdUri.toLowerCase();
-      }
-
-      var keySystem = keySystemsMap[attributes.schemeIdUri];
-
-      if (keySystem) {
-        acc[keySystem] = {
-          attributes: attributes
-        };
-        var psshNode = findChildren(node, 'cenc:pssh')[0];
-
-        if (psshNode) {
-          var pssh = getContent(psshNode);
-          acc[keySystem].pssh = pssh && decodeB64ToUint8Array(pssh);
-        }
-      }
-
-      return acc;
-    }, {});
-  }; // defined in ANSI_SCTE 214-1 2016
-
-
-  var parseCaptionServiceMetadata = function parseCaptionServiceMetadata(service) {
-    // 608 captions
-    if (service.schemeIdUri === 'urn:scte:dash:cc:cea-608:2015') {
-      var values = typeof service.value !== 'string' ? [] : service.value.split(';');
-      return values.map(function (value) {
-        var channel;
-        var language; // default language to value
-
-        language = value;
-
-        if (/^CC\d=/.test(value)) {
-          var _value$split = value.split('=');
-
-          channel = _value$split[0];
-          language = _value$split[1];
-        } else if (/^CC\d$/.test(value)) {
-          channel = value;
-        }
-
-        return {
-          channel: channel,
-          language: language
-        };
-      });
-    } else if (service.schemeIdUri === 'urn:scte:dash:cc:cea-708:2015') {
-      var _values = typeof service.value !== 'string' ? [] : service.value.split(';');
-
-      return _values.map(function (value) {
-        var flags = {
-          // service or channel number 1-63
-          'channel': undefined,
-          // language is a 3ALPHA per ISO 639.2/B
-          // field is required
-          'language': undefined,
-          // BIT 1/0 or ?
-          // default value is 1, meaning 16:9 aspect ratio, 0 is 4:3, ? is unknown
-          'aspectRatio': 1,
-          // BIT 1/0
-          // easy reader flag indicated the text is tailed to the needs of beginning readers
-          // default 0, or off
-          'easyReader': 0,
-          // BIT 1/0
-          // If 3d metadata is present (CEA-708.1) then 1
-          // default 0
-          '3D': 0
-        };
-
-        if (/=/.test(value)) {
-          var _value$split2 = value.split('='),
-              channel = _value$split2[0],
-              _value$split2$ = _value$split2[1],
-              opts = _value$split2$ === void 0 ? '' : _value$split2$;
-
-          flags.channel = channel;
-          flags.language = value;
-          opts.split(',').forEach(function (opt) {
-            var _opt$split = opt.split(':'),
-                name = _opt$split[0],
-                val = _opt$split[1];
-
-            if (name === 'lang') {
-              flags.language = val; // er for easyReadery
-            } else if (name === 'er') {
-              flags.easyReader = Number(val); // war for wide aspect ratio
-            } else if (name === 'war') {
-              flags.aspectRatio = Number(val);
-            } else if (name === '3D') {
-              flags['3D'] = Number(val);
+    const merge$1 = (...objects) => {
+        return objects.reduce((result, source) => {
+            if (typeof source !== 'object') {
+                return result;
             }
-          });
+            Object.keys(source).forEach(key => {
+                if (Array.isArray(result[key]) && Array.isArray(source[key])) {
+                    result[key] = result[key].concat(source[key]);
+                } else if (isObject(result[key]) && isObject(source[key])) {
+                    result[key] = merge$1(result[key], source[key]);
+                } else {
+                    result[key] = source[key];
+                }
+            });
+            return result;
+        }, {});
+    };
+    const values = o => Object.keys(o).map(k => o[k]);
+    const range = (start, end) => {
+        const result = [];
+        for (let i = start; i < end; i++) {
+            result.push(i);
+        }
+        return result;
+    };
+    const flatten = lists => lists.reduce((x, y) => x.concat(y), []);
+    const from = list => {
+        if (!list.length) {
+            return [];
+        }
+        const result = [];
+        for (let i = 0; i < list.length; i++) {
+            result.push(list[i]);
+        }
+        return result;
+    };
+    const findIndexes = (l, key) => l.reduce((a, e, i) => {
+        if (e[key]) {
+            a.push(i);
+        }
+        return a;
+    }, []);
+    /**
+     * Returns a union of the included lists provided each element can be identified by a key.
+     *
+     * @param {Array} list - list of lists to get the union of
+     * @param {Function} keyFunction - the function to use as a key for each element
+     *
+     * @return {Array} the union of the arrays
+     */
+
+    const union = (lists, keyFunction) => {
+        return values(lists.reduce((acc, list) => {
+            list.forEach(el => {
+                acc[keyFunction(el)] = el;
+            });
+            return acc;
+        }, {}));
+    };
+    var errors = {
+        INVALID_NUMBER_OF_PERIOD: 'INVALID_NUMBER_OF_PERIOD',
+        DASH_EMPTY_MANIFEST: 'DASH_EMPTY_MANIFEST',
+        DASH_INVALID_XML: 'DASH_INVALID_XML',
+        NO_BASE_URL: 'NO_BASE_URL',
+        MISSING_SEGMENT_INFORMATION: 'MISSING_SEGMENT_INFORMATION',
+        SEGMENT_TIME_UNSPECIFIED: 'SEGMENT_TIME_UNSPECIFIED',
+        UNSUPPORTED_UTC_TIMING_SCHEME: 'UNSUPPORTED_UTC_TIMING_SCHEME'
+    };
+
+    /**
+     * @typedef {Object} SingleUri
+     * @property {string} uri - relative location of segment
+     * @property {string} resolvedUri - resolved location of segment
+     * @property {Object} byterange - Object containing information on how to make byte range
+     *   requests following byte-range-spec per RFC2616.
+     * @property {String} byterange.length - length of range request
+     * @property {String} byterange.offset - byte offset of range request
+     *
+     * @see https://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.35.1
+     */
+
+    /**
+     * Converts a URLType node (5.3.9.2.3 Table 13) to a segment object
+     * that conforms to how m3u8-parser is structured
+     *
+     * @see https://github.com/videojs/m3u8-parser
+     *
+     * @param {string} baseUrl - baseUrl provided by <BaseUrl> nodes
+     * @param {string} source - source url for segment
+     * @param {string} range - optional range used for range calls,
+     *   follows  RFC 2616, Clause 14.35.1
+     * @return {SingleUri} full segment information transformed into a format similar
+     *   to m3u8-parser
+     */
+
+    const urlTypeToSegment = ({
+                                  baseUrl = '',
+                                  source = '',
+                                  range = '',
+                                  indexRange = ''
+                              }) => {
+        const segment = {
+            uri: source,
+            resolvedUri: resolveUrl$1(baseUrl || '', source)
+        };
+        if (range || indexRange) {
+            const rangeStr = range ? range : indexRange;
+            const ranges = rangeStr.split('-'); // default to parsing this as a BigInt if possible
+
+            let startRange = window.BigInt ? window.BigInt(ranges[0]) : parseInt(ranges[0], 10);
+            let endRange = window.BigInt ? window.BigInt(ranges[1]) : parseInt(ranges[1], 10); // convert back to a number if less than MAX_SAFE_INTEGER
+
+            if (startRange < Number.MAX_SAFE_INTEGER && typeof startRange === 'bigint') {
+                startRange = Number(startRange);
+            }
+            if (endRange < Number.MAX_SAFE_INTEGER && typeof endRange === 'bigint') {
+                endRange = Number(endRange);
+            }
+            let length;
+            if (typeof endRange === 'bigint' || typeof startRange === 'bigint') {
+                length = window.BigInt(endRange) - window.BigInt(startRange) + window.BigInt(1);
+            } else {
+                length = endRange - startRange + 1;
+            }
+            if (typeof length === 'bigint' && length < Number.MAX_SAFE_INTEGER) {
+                length = Number(length);
+            } // byterange should be inclusive according to
+            // RFC 2616, Clause 14.35.1
+
+            segment.byterange = {
+                length,
+                offset: startRange
+            };
+        }
+        return segment;
+    };
+    const byteRangeToString = byterange => {
+        // `endRange` is one less than `offset + length` because the HTTP range
+        // header uses inclusive ranges
+        let endRange;
+        if (typeof byterange.offset === 'bigint' || typeof byterange.length === 'bigint') {
+            endRange = window.BigInt(byterange.offset) + window.BigInt(byterange.length) - window.BigInt(1);
         } else {
-          flags.language = value;
+            endRange = byterange.offset + byterange.length - 1;
         }
+        return `${byterange.offset}-${endRange}`;
+    };
 
-        if (flags.channel) {
-          flags.channel = 'SERVICE' + flags.channel;
+    /**
+     * parse the end number attribue that can be a string
+     * number, or undefined.
+     *
+     * @param {string|number|undefined} endNumber
+     *        The end number attribute.
+     *
+     * @return {number|null}
+     *          The result of parsing the end number.
+     */
+
+    const parseEndNumber = endNumber => {
+        if (endNumber && typeof endNumber !== 'number') {
+            endNumber = parseInt(endNumber, 10);
         }
-
-        return flags;
-      });
-    }
-  };
-  /**
-   * Maps an AdaptationSet node to a list of Representation information objects
-   *
-   * @name toRepresentationsCallback
-   * @function
-   * @param {Node} adaptationSet
-   *        AdaptationSet node from the mpd
-   * @return {RepresentationInformation[]}
-   *         List of objects containing Representaion information
-   */
-
-  /**
-   * Returns a callback for Array.prototype.map for mapping AdaptationSet nodes to a list of
-   * Representation information objects
-   *
-   * @param {Object} periodAttributes
-   *        Contains attributes inherited by the Period
-   * @param {string[]} periodBaseUrls
-   *        Contains list of resolved base urls inherited by the Period
-   * @param {string[]} periodSegmentInfo
-   *        Contains Segment Information at the period level
-   * @return {toRepresentationsCallback}
-   *         Callback map function
-   */
-
-
-  var toRepresentations = function toRepresentations(periodAttributes, periodBaseUrls, periodSegmentInfo) {
-    return function (adaptationSet) {
-      var adaptationSetAttributes = parseAttributes(adaptationSet);
-      var adaptationSetBaseUrls = buildBaseUrls(periodBaseUrls, findChildren(adaptationSet, 'BaseURL'));
-      var role = findChildren(adaptationSet, 'Role')[0];
-      var roleAttributes = {
-        role: parseAttributes(role)
-      };
-      var attrs = merge(periodAttributes, adaptationSetAttributes, roleAttributes);
-      var accessibility = findChildren(adaptationSet, 'Accessibility')[0];
-      var captionServices = parseCaptionServiceMetadata(parseAttributes(accessibility));
-
-      if (captionServices) {
-        attrs = merge(attrs, {
-          captionServices: captionServices
-        });
-      }
-
-      var label = findChildren(adaptationSet, 'Label')[0];
-
-      if (label && label.childNodes.length) {
-        var labelVal = label.childNodes[0].nodeValue.trim();
-        attrs = merge(attrs, {
-          label: labelVal
-        });
-      }
-
-      var contentProtection = generateKeySystemInformation(findChildren(adaptationSet, 'ContentProtection'));
-
-      if (Object.keys(contentProtection).length) {
-        attrs = merge(attrs, {
-          contentProtection: contentProtection
-        });
-      }
-
-      var segmentInfo = getSegmentInformation(adaptationSet);
-      var representations = findChildren(adaptationSet, 'Representation');
-      var adaptationSetSegmentInfo = merge(periodSegmentInfo, segmentInfo);
-      return flatten(representations.map(inheritBaseUrls(attrs, adaptationSetBaseUrls, adaptationSetSegmentInfo)));
+        if (isNaN(endNumber)) {
+            return null;
+        }
+        return endNumber;
     };
-  };
-  /**
-   * Contains all period information for mapping nodes onto adaptation sets.
-   *
-   * @typedef {Object} PeriodInformation
-   * @property {Node} period.node
-   *           Period node from the mpd
-   * @property {Object} period.attributes
-   *           Parsed period attributes from node plus any added
-   */
+    /**
+     * Functions for calculating the range of available segments in static and dynamic
+     * manifests.
+     */
 
-  /**
-   * Maps a PeriodInformation object to a list of Representation information objects for all
-   * AdaptationSet nodes contained within the Period.
-   *
-   * @name toAdaptationSetsCallback
-   * @function
-   * @param {PeriodInformation} period
-   *        Period object containing necessary period information
-   * @param {number} periodStart
-   *        Start time of the Period within the mpd
-   * @return {RepresentationInformation[]}
-   *         List of objects containing Representaion information
-   */
+    const segmentRange = {
+        /**
+         * Returns the entire range of available segments for a static MPD
+         *
+         * @param {Object} attributes
+         *        Inheritied MPD attributes
+         * @return {{ start: number, end: number }}
+         *         The start and end numbers for available segments
+         */
+        static(attributes) {
+            const {
+                duration,
+                timescale = 1,
+                sourceDuration,
+                periodDuration
+            } = attributes;
+            const endNumber = parseEndNumber(attributes.endNumber);
+            const segmentDuration = duration / timescale;
+            if (typeof endNumber === 'number') {
+                return {
+                    start: 0,
+                    end: endNumber
+                };
+            }
+            if (typeof periodDuration === 'number') {
+                return {
+                    start: 0,
+                    end: periodDuration / segmentDuration
+                };
+            }
+            return {
+                start: 0,
+                end: sourceDuration / segmentDuration
+            };
+        },
+        /**
+         * Returns the current live window range of available segments for a dynamic MPD
+         *
+         * @param {Object} attributes
+         *        Inheritied MPD attributes
+         * @return {{ start: number, end: number }}
+         *         The start and end numbers for available segments
+         */
+        dynamic(attributes) {
+            const {
+                NOW,
+                clientOffset,
+                availabilityStartTime,
+                timescale = 1,
+                duration,
+                periodStart = 0,
+                minimumUpdatePeriod = 0,
+                timeShiftBufferDepth = Infinity
+            } = attributes;
+            const endNumber = parseEndNumber(attributes.endNumber); // clientOffset is passed in at the top level of mpd-parser and is an offset calculated
+            // after retrieving UTC server time.
 
-  /**
-   * Returns a callback for Array.prototype.map for mapping Period nodes to a list of
-   * Representation information objects
-   *
-   * @param {Object} mpdAttributes
-   *        Contains attributes inherited by the mpd
-   * @param {string[]} mpdBaseUrls
-   *        Contains list of resolved base urls inherited by the mpd
-   * @return {toAdaptationSetsCallback}
-   *         Callback map function
-   */
+            const now = (NOW + clientOffset) / 1000; // WC stands for Wall Clock.
+            // Convert the period start time to EPOCH.
 
+            const periodStartWC = availabilityStartTime + periodStart; // Period end in EPOCH is manifest's retrieval time + time until next update.
 
-  var toAdaptationSets = function toAdaptationSets(mpdAttributes, mpdBaseUrls) {
-    return function (period, index) {
-      var periodBaseUrls = buildBaseUrls(mpdBaseUrls, findChildren(period.node, 'BaseURL'));
-      var periodAttributes = merge(mpdAttributes, {
-        periodStart: period.attributes.start
-      });
-
-      if (typeof period.attributes.duration === 'number') {
-        periodAttributes.periodDuration = period.attributes.duration;
-      }
-
-      var adaptationSets = findChildren(period.node, 'AdaptationSet');
-      var periodSegmentInfo = getSegmentInformation(period.node);
-      return flatten(adaptationSets.map(toRepresentations(periodAttributes, periodBaseUrls, periodSegmentInfo)));
+            const periodEndWC = now + minimumUpdatePeriod;
+            const periodDuration = periodEndWC - periodStartWC;
+            const segmentCount = Math.ceil(periodDuration * timescale / duration);
+            const availableStart = Math.floor((now - periodStartWC - timeShiftBufferDepth) * timescale / duration);
+            const availableEnd = Math.floor((now - periodStartWC) * timescale / duration);
+            return {
+                start: Math.max(0, availableStart),
+                end: typeof endNumber === 'number' ? endNumber : Math.min(segmentCount, availableEnd)
+            };
+        }
     };
-  };
-  /**
-   * Gets Period@start property for a given period.
-   *
-   * @param {Object} options
-   *        Options object
-   * @param {Object} options.attributes
-   *        Period attributes
-   * @param {Object} [options.priorPeriodAttributes]
-   *        Prior period attributes (if prior period is available)
-   * @param {string} options.mpdType
-   *        The MPD@type these periods came from
-   * @return {number|null}
-   *         The period start, or null if it's an early available period or error
-   */
+    /**
+     * Maps a range of numbers to objects with information needed to build the corresponding
+     * segment list
+     *
+     * @name toSegmentsCallback
+     * @function
+     * @param {number} number
+     *        Number of the segment
+     * @param {number} index
+     *        Index of the number in the range list
+     * @return {{ number: Number, duration: Number, timeline: Number, time: Number }}
+     *         Object with segment timing and duration info
+     */
 
+    /**
+     * Returns a callback for Array.prototype.map for mapping a range of numbers to
+     * information needed to build the segment list.
+     *
+     * @param {Object} attributes
+     *        Inherited MPD attributes
+     * @return {toSegmentsCallback}
+     *         Callback map function
+     */
 
-  var getPeriodStart = function getPeriodStart(_ref) {
-    var attributes = _ref.attributes,
-        priorPeriodAttributes = _ref.priorPeriodAttributes,
-        mpdType = _ref.mpdType; // Summary of period start time calculation from DASH spec section 5.3.2.1
-    //
-    // A period's start is the first period's start + time elapsed after playing all
-    // prior periods to this one. Periods continue one after the other in time (without
-    // gaps) until the end of the presentation.
-    //
-    // The value of Period@start should be:
-    // 1. if Period@start is present: value of Period@start
-    // 2. if previous period exists and it has @duration: previous Period@start +
-    //    previous Period@duration
-    // 3. if this is first period and MPD@type is 'static': 0
-    // 4. in all other cases, consider the period an "early available period" (note: not
-    //    currently supported)
-    // (1)
-
-    if (typeof attributes.start === 'number') {
-      return attributes.start;
-    } // (2)
-
-
-    if (priorPeriodAttributes && typeof priorPeriodAttributes.start === 'number' && typeof priorPeriodAttributes.duration === 'number') {
-      return priorPeriodAttributes.start + priorPeriodAttributes.duration;
-    } // (3)
-
-
-    if (!priorPeriodAttributes && mpdType === 'static') {
-      return 0;
-    } // (4)
-    // There is currently no logic for calculating the Period@start value if there is
-    // no Period@start or prior Period@start and Period@duration available. This is not made
-    // explicit by the DASH interop guidelines or the DASH spec, however, since there's
-    // nothing about any other resolution strategies, it's implied. Thus, this case should
-    // be considered an early available period, or error, and null should suffice for both
-    // of those cases.
-
-
-    return null;
-  };
-  /**
-   * Traverses the mpd xml tree to generate a list of Representation information objects
-   * that have inherited attributes from parent nodes
-   *
-   * @param {Node} mpd
-   *        The root node of the mpd
-   * @param {Object} options
-   *        Available options for inheritAttributes
-   * @param {string} options.manifestUri
-   *        The uri source of the mpd
-   * @param {number} options.NOW
-   *        Current time per DASH IOP.  Default is current time in ms since epoch
-   * @param {number} options.clientOffset
-   *        Client time difference from NOW (in milliseconds)
-   * @return {RepresentationInformation[]}
-   *         List of objects containing Representation information
-   */
-
-
-  var inheritAttributes = function inheritAttributes(mpd, options) {
-    if (options === void 0) {
-      options = {};
-    }
-
-    var _options = options,
-        _options$manifestUri = _options.manifestUri,
-        manifestUri = _options$manifestUri === void 0 ? '' : _options$manifestUri,
-        _options$NOW = _options.NOW,
-        NOW = _options$NOW === void 0 ? Date.now() : _options$NOW,
-        _options$clientOffset = _options.clientOffset,
-        clientOffset = _options$clientOffset === void 0 ? 0 : _options$clientOffset;
-    var periodNodes = findChildren(mpd, 'Period');
-
-    if (!periodNodes.length) {
-      throw new Error(errors.INVALID_NUMBER_OF_PERIOD);
-    }
-
-    var locations = findChildren(mpd, 'Location');
-    var mpdAttributes = parseAttributes(mpd);
-    var mpdBaseUrls = buildBaseUrls([manifestUri], findChildren(mpd, 'BaseURL')); // See DASH spec section 5.3.1.2, Semantics of MPD element. Default type to 'static'.
-
-    mpdAttributes.type = mpdAttributes.type || 'static';
-    mpdAttributes.sourceDuration = mpdAttributes.mediaPresentationDuration || 0;
-    mpdAttributes.NOW = NOW;
-    mpdAttributes.clientOffset = clientOffset;
-
-    if (locations.length) {
-      mpdAttributes.locations = locations.map(getContent);
-    }
-
-    var periods = []; // Since toAdaptationSets acts on individual periods right now, the simplest approach to
-    // adding properties that require looking at prior periods is to parse attributes and add
-    // missing ones before toAdaptationSets is called. If more such properties are added, it
-    // may be better to refactor toAdaptationSets.
-
-    periodNodes.forEach(function (node, index) {
-      var attributes = parseAttributes(node); // Use the last modified prior period, as it may contain added information necessary
-      // for this period.
-
-      var priorPeriod = periods[index - 1];
-      attributes.start = getPeriodStart({
-        attributes: attributes,
-        priorPeriodAttributes: priorPeriod ? priorPeriod.attributes : null,
-        mpdType: mpdAttributes.type
-      });
-      periods.push({
-        node: node,
-        attributes: attributes
-      });
-    });
-    return {
-      locations: mpdAttributes.locations,
-      representationInfo: flatten(periods.map(toAdaptationSets(mpdAttributes, mpdBaseUrls)))
+    const toSegments = attributes => number => {
+        const {
+            duration,
+            timescale = 1,
+            periodStart,
+            startNumber = 1
+        } = attributes;
+        return {
+            number: startNumber + number,
+            duration: duration / timescale,
+            timeline: periodStart,
+            time: number * duration
+        };
     };
-  };
+    /**
+     * Returns a list of objects containing segment timing and duration info used for
+     * building the list of segments. This uses the @duration attribute specified
+     * in the MPD manifest to derive the range of segments.
+     *
+     * @param {Object} attributes
+     *        Inherited MPD attributes
+     * @return {{number: number, duration: number, time: number, timeline: number}[]}
+     *         List of Objects with segment timing and duration info
+     */
 
-  var stringToMpdXml = function stringToMpdXml(manifestString) {
-    if (manifestString === '') {
-      throw new Error(errors.DASH_EMPTY_MANIFEST);
-    }
+    const parseByDuration = attributes => {
+        const {
+            type,
+            duration,
+            timescale = 1,
+            periodDuration,
+            sourceDuration
+        } = attributes;
+        const {
+            start,
+            end
+        } = segmentRange[type](attributes);
+        const segments = range(start, end).map(toSegments(attributes));
+        if (type === 'static') {
+            const index = segments.length - 1; // section is either a period or the full source
 
-    var parser = new DOMParser();
-    var xml;
-    var mpd;
+            const sectionDuration = typeof periodDuration === 'number' ? periodDuration : sourceDuration; // final segment may be less than full segment duration
 
-    try {
-      xml = parser.parseFromString(manifestString, 'application/xml');
-      mpd = xml && xml.documentElement.tagName === 'MPD' ? xml.documentElement : null;
-    } catch (e) {// ie 11 throwsw on invalid xml
-    }
+            segments[index].duration = sectionDuration - duration / timescale * index;
+        }
+        return segments;
+    };
 
-    if (!mpd || mpd && mpd.getElementsByTagName('parsererror').length > 0) {
-      throw new Error(errors.DASH_INVALID_XML);
-    }
+    /**
+     * Translates SegmentBase into a set of segments.
+     * (DASH SPEC Section 5.3.9.3.2) contains a set of <SegmentURL> nodes.  Each
+     * node should be translated into segment.
+     *
+     * @param {Object} attributes
+     *   Object containing all inherited attributes from parent elements with attribute
+     *   names as keys
+     * @return {Object.<Array>} list of segments
+     */
 
-    return mpd;
-  };
-  /**
-   * Parses the manifest for a UTCTiming node, returning the nodes attributes if found
-   *
-   * @param {string} mpd
-   *        XML string of the MPD manifest
-   * @return {Object|null}
-   *         Attributes of UTCTiming node specified in the manifest. Null if none found
-   */
+    const segmentsFromBase = attributes => {
+        const {
+            baseUrl,
+            initialization = {},
+            sourceDuration,
+            indexRange = '',
+            periodStart,
+            presentationTime,
+            number = 0,
+            duration
+        } = attributes; // base url is required for SegmentBase to work, per spec (Section 5.3.9.2.1)
 
+        if (!baseUrl) {
+            throw new Error(errors.NO_BASE_URL);
+        }
+        const initSegment = urlTypeToSegment({
+            baseUrl,
+            source: initialization.sourceURL,
+            range: initialization.range
+        });
+        const segment = urlTypeToSegment({
+            baseUrl,
+            source: baseUrl,
+            indexRange
+        });
+        segment.map = initSegment; // If there is a duration, use it, otherwise use the given duration of the source
+        // (since SegmentBase is only for one total segment)
 
-  var parseUTCTimingScheme = function parseUTCTimingScheme(mpd) {
-    var UTCTimingNode = findChildren(mpd, 'UTCTiming')[0];
+        if (duration) {
+            const segmentTimeInfo = parseByDuration(attributes);
+            if (segmentTimeInfo.length) {
+                segment.duration = segmentTimeInfo[0].duration;
+                segment.timeline = segmentTimeInfo[0].timeline;
+            }
+        } else if (sourceDuration) {
+            segment.duration = sourceDuration;
+            segment.timeline = periodStart;
+        } // If presentation time is provided, these segments are being generated by SIDX
+        // references, and should use the time provided. For the general case of SegmentBase,
+        // there should only be one segment in the period, so its presentation time is the same
+        // as its period start.
 
-    if (!UTCTimingNode) {
-      return null;
-    }
+        segment.presentationTime = presentationTime || periodStart;
+        segment.number = number;
+        return [segment];
+    };
+    /**
+     * Given a playlist, a sidx box, and a baseUrl, update the segment list of the playlist
+     * according to the sidx information given.
+     *
+     * playlist.sidx has metadadata about the sidx where-as the sidx param
+     * is the parsed sidx box itself.
+     *
+     * @param {Object} playlist the playlist to update the sidx information for
+     * @param {Object} sidx the parsed sidx box
+     * @return {Object} the playlist object with the updated sidx information
+     */
 
-    var attributes = parseAttributes(UTCTimingNode);
+    const addSidxSegmentsToPlaylist$1 = (playlist, sidx, baseUrl) => {
+        // Retain init segment information
+        const initSegment = playlist.sidx.map ? playlist.sidx.map : null; // Retain source duration from initial main manifest parsing
 
-    switch (attributes.schemeIdUri) {
-      case 'urn:mpeg:dash:utc:http-head:2014':
-      case 'urn:mpeg:dash:utc:http-head:2012':
-        attributes.method = 'HEAD';
-        break;
+        const sourceDuration = playlist.sidx.duration; // Retain source timeline
 
-      case 'urn:mpeg:dash:utc:http-xsdate:2014':
-      case 'urn:mpeg:dash:utc:http-iso:2014':
-      case 'urn:mpeg:dash:utc:http-xsdate:2012':
-      case 'urn:mpeg:dash:utc:http-iso:2012':
-        attributes.method = 'GET';
-        break;
+        const timeline = playlist.timeline || 0;
+        const sidxByteRange = playlist.sidx.byterange;
+        const sidxEnd = sidxByteRange.offset + sidxByteRange.length; // Retain timescale of the parsed sidx
 
-      case 'urn:mpeg:dash:utc:direct:2014':
-      case 'urn:mpeg:dash:utc:direct:2012':
-        attributes.method = 'DIRECT';
-        attributes.value = Date.parse(attributes.value);
-        break;
+        const timescale = sidx.timescale; // referenceType 1 refers to other sidx boxes
 
-      case 'urn:mpeg:dash:utc:http-ntp:2014':
-      case 'urn:mpeg:dash:utc:ntp:2014':
-      case 'urn:mpeg:dash:utc:sntp:2014':
-      default:
-        throw new Error(errors.UNSUPPORTED_UTC_TIMING_SCHEME);
-    }
+        const mediaReferences = sidx.references.filter(r => r.referenceType !== 1);
+        const segments = [];
+        const type = playlist.endList ? 'static' : 'dynamic';
+        const periodStart = playlist.sidx.timeline;
+        let presentationTime = periodStart;
+        let number = playlist.mediaSequence || 0; // firstOffset is the offset from the end of the sidx box
 
-    return attributes;
-  };
-  /*
+        let startIndex; // eslint-disable-next-line
+
+        if (typeof sidx.firstOffset === 'bigint') {
+            startIndex = window.BigInt(sidxEnd) + sidx.firstOffset;
+        } else {
+            startIndex = sidxEnd + sidx.firstOffset;
+        }
+        for (let i = 0; i < mediaReferences.length; i++) {
+            const reference = sidx.references[i]; // size of the referenced (sub)segment
+
+            const size = reference.referencedSize; // duration of the referenced (sub)segment, in  the  timescale
+            // this will be converted to seconds when generating segments
+
+            const duration = reference.subsegmentDuration; // should be an inclusive range
+
+            let endIndex; // eslint-disable-next-line
+
+            if (typeof startIndex === 'bigint') {
+                endIndex = startIndex + window.BigInt(size) - window.BigInt(1);
+            } else {
+                endIndex = startIndex + size - 1;
+            }
+            const indexRange = `${startIndex}-${endIndex}`;
+            const attributes = {
+                baseUrl,
+                timescale,
+                timeline,
+                periodStart,
+                presentationTime,
+                number,
+                duration,
+                sourceDuration,
+                indexRange,
+                type
+            };
+            const segment = segmentsFromBase(attributes)[0];
+            if (initSegment) {
+                segment.map = initSegment;
+            }
+            segments.push(segment);
+            if (typeof startIndex === 'bigint') {
+                startIndex += window.BigInt(size);
+            } else {
+                startIndex += size;
+            }
+            presentationTime += duration / timescale;
+            number++;
+        }
+        playlist.segments = segments;
+        return playlist;
+    };
+    const SUPPORTED_MEDIA_TYPES = ['AUDIO', 'SUBTITLES']; // allow one 60fps frame as leniency (arbitrarily chosen)
+
+    const TIME_FUDGE = 1 / 60;
+    /**
+     * Given a list of timelineStarts, combines, dedupes, and sorts them.
+     *
+     * @param {TimelineStart[]} timelineStarts - list of timeline starts
+     *
+     * @return {TimelineStart[]} the combined and deduped timeline starts
+     */
+
+    const getUniqueTimelineStarts = timelineStarts => {
+        return union(timelineStarts, ({
+                                          timeline
+                                      }) => timeline).sort((a, b) => a.timeline > b.timeline ? 1 : -1);
+    };
+    /**
+     * Finds the playlist with the matching NAME attribute.
+     *
+     * @param {Array} playlists - playlists to search through
+     * @param {string} name - the NAME attribute to search for
+     *
+     * @return {Object|null} the matching playlist object, or null
+     */
+
+    const findPlaylistWithName = (playlists, name) => {
+        for (let i = 0; i < playlists.length; i++) {
+            if (playlists[i].attributes.NAME === name) {
+                return playlists[i];
+            }
+        }
+        return null;
+    };
+    /**
+     * Gets a flattened array of media group playlists.
+     *
+     * @param {Object} manifest - the main manifest object
+     *
+     * @return {Array} the media group playlists
+     */
+
+    const getMediaGroupPlaylists = manifest => {
+        let mediaGroupPlaylists = [];
+        forEachMediaGroup$1(manifest, SUPPORTED_MEDIA_TYPES, (properties, type, group, label) => {
+            mediaGroupPlaylists = mediaGroupPlaylists.concat(properties.playlists || []);
+        });
+        return mediaGroupPlaylists;
+    };
+    /**
+     * Updates the playlist's media sequence numbers.
+     *
+     * @param {Object} config - options object
+     * @param {Object} config.playlist - the playlist to update
+     * @param {number} config.mediaSequence - the mediaSequence number to start with
+     */
+
+    const updateMediaSequenceForPlaylist = ({
+                                                playlist,
+                                                mediaSequence
+                                            }) => {
+        playlist.mediaSequence = mediaSequence;
+        playlist.segments.forEach((segment, index) => {
+            segment.number = playlist.mediaSequence + index;
+        });
+    };
+    /**
+     * Updates the media and discontinuity sequence numbers of newPlaylists given oldPlaylists
+     * and a complete list of timeline starts.
+     *
+     * If no matching playlist is found, only the discontinuity sequence number of the playlist
+     * will be updated.
+     *
+     * Since early available timelines are not supported, at least one segment must be present.
+     *
+     * @param {Object} config - options object
+     * @param {Object[]} oldPlaylists - the old playlists to use as a reference
+     * @param {Object[]} newPlaylists - the new playlists to update
+     * @param {Object} timelineStarts - all timelineStarts seen in the stream to this point
+     */
+
+    const updateSequenceNumbers = ({
+                                       oldPlaylists,
+                                       newPlaylists,
+                                       timelineStarts
+                                   }) => {
+        newPlaylists.forEach(playlist => {
+            playlist.discontinuitySequence = timelineStarts.findIndex(function ({
+                                                                                    timeline
+                                                                                }) {
+                return timeline === playlist.timeline;
+            }); // Playlists NAMEs come from DASH Representation IDs, which are mandatory
+            // (see ISO_23009-1-2012 5.3.5.2).
+            //
+            // If the same Representation existed in a prior Period, it will retain the same NAME.
+
+            const oldPlaylist = findPlaylistWithName(oldPlaylists, playlist.attributes.NAME);
+            if (!oldPlaylist) {
+                // Since this is a new playlist, the media sequence values can start from 0 without
+                // consequence.
+                return;
+            } // TODO better support for live SIDX
+            //
+            // As of this writing, mpd-parser does not support multiperiod SIDX (in live or VOD).
+            // This is evident by a playlist only having a single SIDX reference. In a multiperiod
+            // playlist there would need to be multiple SIDX references. In addition, live SIDX is
+            // not supported when the SIDX properties change on refreshes.
+            //
+            // In the future, if support needs to be added, the merging logic here can be called
+            // after SIDX references are resolved. For now, exit early to prevent exceptions being
+            // thrown due to undefined references.
+
+            if (playlist.sidx) {
+                return;
+            } // Since we don't yet support early available timelines, we don't need to support
+            // playlists with no segments.
+
+            const firstNewSegment = playlist.segments[0];
+            const oldMatchingSegmentIndex = oldPlaylist.segments.findIndex(function (oldSegment) {
+                return Math.abs(oldSegment.presentationTime - firstNewSegment.presentationTime) < TIME_FUDGE;
+            }); // No matching segment from the old playlist means the entire playlist was refreshed.
+            // In this case the media sequence should account for this update, and the new segments
+            // should be marked as discontinuous from the prior content, since the last prior
+            // timeline was removed.
+
+            if (oldMatchingSegmentIndex === -1) {
+                updateMediaSequenceForPlaylist({
+                    playlist,
+                    mediaSequence: oldPlaylist.mediaSequence + oldPlaylist.segments.length
+                });
+                playlist.segments[0].discontinuity = true;
+                playlist.discontinuityStarts.unshift(0); // No matching segment does not necessarily mean there's missing content.
+                //
+                // If the new playlist's timeline is the same as the last seen segment's timeline,
+                // then a discontinuity can be added to identify that there's potentially missing
+                // content. If there's no missing content, the discontinuity should still be rather
+                // harmless. It's possible that if segment durations are accurate enough, that the
+                // existence of a gap can be determined using the presentation times and durations,
+                // but if the segment timing info is off, it may introduce more problems than simply
+                // adding the discontinuity.
+                //
+                // If the new playlist's timeline is different from the last seen segment's timeline,
+                // then a discontinuity can be added to identify that this is the first seen segment
+                // of a new timeline. However, the logic at the start of this function that
+                // determined the disconinuity sequence by timeline index is now off by one (the
+                // discontinuity of the newest timeline hasn't yet fallen off the manifest...since
+                // we added it), so the disconinuity sequence must be decremented.
+                //
+                // A period may also have a duration of zero, so the case of no segments is handled
+                // here even though we don't yet support early available periods.
+
+                if (!oldPlaylist.segments.length && playlist.timeline > oldPlaylist.timeline || oldPlaylist.segments.length && playlist.timeline > oldPlaylist.segments[oldPlaylist.segments.length - 1].timeline) {
+                    playlist.discontinuitySequence--;
+                }
+                return;
+            } // If the first segment matched with a prior segment on a discontinuity (it's matching
+            // on the first segment of a period), then the discontinuitySequence shouldn't be the
+            // timeline's matching one, but instead should be the one prior, and the first segment
+            // of the new manifest should be marked with a discontinuity.
+            //
+            // The reason for this special case is that discontinuity sequence shows how many
+            // discontinuities have fallen off of the playlist, and discontinuities are marked on
+            // the first segment of a new "timeline." Because of this, while DASH will retain that
+            // Period while the "timeline" exists, HLS keeps track of it via the discontinuity
+            // sequence, and that first segment is an indicator, but can be removed before that
+            // timeline is gone.
+
+            const oldMatchingSegment = oldPlaylist.segments[oldMatchingSegmentIndex];
+            if (oldMatchingSegment.discontinuity && !firstNewSegment.discontinuity) {
+                firstNewSegment.discontinuity = true;
+                playlist.discontinuityStarts.unshift(0);
+                playlist.discontinuitySequence--;
+            }
+            updateMediaSequenceForPlaylist({
+                playlist,
+                mediaSequence: oldPlaylist.segments[oldMatchingSegmentIndex].number
+            });
+        });
+    };
+    /**
+     * Given an old parsed manifest object and a new parsed manifest object, updates the
+     * sequence and timing values within the new manifest to ensure that it lines up with the
+     * old.
+     *
+     * @param {Array} oldManifest - the old main manifest object
+     * @param {Array} newManifest - the new main manifest object
+     *
+     * @return {Object} the updated new manifest object
+     */
+
+    const positionManifestOnTimeline = ({
+                                            oldManifest,
+                                            newManifest
+                                        }) => {
+        // Starting from v4.1.2 of the IOP, section 4.4.3.3 states:
+        //
+        // "MPD@availabilityStartTime and Period@start shall not be changed over MPD updates."
+        //
+        // This was added from https://github.com/Dash-Industry-Forum/DASH-IF-IOP/issues/160
+        //
+        // Because of this change, and the difficulty of supporting periods with changing start
+        // times, periods with changing start times are not supported. This makes the logic much
+        // simpler, since periods with the same start time can be considerred the same period
+        // across refreshes.
+        //
+        // To give an example as to the difficulty of handling periods where the start time may
+        // change, if a single period manifest is refreshed with another manifest with a single
+        // period, and both the start and end times are increased, then the only way to determine
+        // if it's a new period or an old one that has changed is to look through the segments of
+        // each playlist and determine the presentation time bounds to find a match. In addition,
+        // if the period start changed to exceed the old period end, then there would be no
+        // match, and it would not be possible to determine whether the refreshed period is a new
+        // one or the old one.
+        const oldPlaylists = oldManifest.playlists.concat(getMediaGroupPlaylists(oldManifest));
+        const newPlaylists = newManifest.playlists.concat(getMediaGroupPlaylists(newManifest)); // Save all seen timelineStarts to the new manifest. Although this potentially means that
+        // there's a "memory leak" in that it will never stop growing, in reality, only a couple
+        // of properties are saved for each seen Period. Even long running live streams won't
+        // generate too many Periods, unless the stream is watched for decades. In the future,
+        // this can be optimized by mapping to discontinuity sequence numbers for each timeline,
+        // but it may not become an issue, and the additional info can be useful for debugging.
+
+        newManifest.timelineStarts = getUniqueTimelineStarts([oldManifest.timelineStarts, newManifest.timelineStarts]);
+        updateSequenceNumbers({
+            oldPlaylists,
+            newPlaylists,
+            timelineStarts: newManifest.timelineStarts
+        });
+        return newManifest;
+    };
+    const generateSidxKey = sidx => sidx && sidx.uri + '-' + byteRangeToString(sidx.byterange);
+    const mergeDiscontiguousPlaylists = playlists => {
+        const mergedPlaylists = values(playlists.reduce((acc, playlist) => {
+            // assuming playlist IDs are the same across periods
+            // TODO: handle multiperiod where representation sets are not the same
+            // across periods
+            const name = playlist.attributes.id + (playlist.attributes.lang || '');
+            if (!acc[name]) {
+                // First Period
+                acc[name] = playlist;
+                acc[name].attributes.timelineStarts = [];
+            } else {
+                // Subsequent Periods
+                if (playlist.segments) {
+                    // first segment of subsequent periods signal a discontinuity
+                    if (playlist.segments[0]) {
+                        playlist.segments[0].discontinuity = true;
+                    }
+                    acc[name].segments.push(...playlist.segments);
+                } // bubble up contentProtection, this assumes all DRM content
+                // has the same contentProtection
+
+                if (playlist.attributes.contentProtection) {
+                    acc[name].attributes.contentProtection = playlist.attributes.contentProtection;
+                }
+            }
+            acc[name].attributes.timelineStarts.push({
+                // Although they represent the same number, it's important to have both to make it
+                // compatible with HLS potentially having a similar attribute.
+                start: playlist.attributes.periodStart,
+                timeline: playlist.attributes.periodStart
+            });
+            return acc;
+        }, {}));
+        return mergedPlaylists.map(playlist => {
+            playlist.discontinuityStarts = findIndexes(playlist.segments || [], 'discontinuity');
+            return playlist;
+        });
+    };
+    const addSidxSegmentsToPlaylist = (playlist, sidxMapping) => {
+        const sidxKey = generateSidxKey(playlist.sidx);
+        const sidxMatch = sidxKey && sidxMapping[sidxKey] && sidxMapping[sidxKey].sidx;
+        if (sidxMatch) {
+            addSidxSegmentsToPlaylist$1(playlist, sidxMatch, playlist.sidx.resolvedUri);
+        }
+        return playlist;
+    };
+    const addSidxSegmentsToPlaylists = (playlists, sidxMapping = {}) => {
+        if (!Object.keys(sidxMapping).length) {
+            return playlists;
+        }
+        for (const i in playlists) {
+            playlists[i] = addSidxSegmentsToPlaylist(playlists[i], sidxMapping);
+        }
+        return playlists;
+    };
+    const formatAudioPlaylist = ({
+                                     attributes,
+                                     segments,
+                                     sidx,
+                                     mediaSequence,
+                                     discontinuitySequence,
+                                     discontinuityStarts
+                                 }, isAudioOnly) => {
+        const playlist = {
+            attributes: {
+                NAME: attributes.id,
+                BANDWIDTH: attributes.bandwidth,
+                CODECS: attributes.codecs,
+                ['PROGRAM-ID']: 1
+            },
+            uri: '',
+            endList: attributes.type === 'static',
+            timeline: attributes.periodStart,
+            resolvedUri: '',
+            targetDuration: attributes.duration,
+            discontinuitySequence,
+            discontinuityStarts,
+            timelineStarts: attributes.timelineStarts,
+            mediaSequence,
+            segments
+        };
+        if (attributes.contentProtection) {
+            playlist.contentProtection = attributes.contentProtection;
+        }
+        if (sidx) {
+            playlist.sidx = sidx;
+        }
+        if (isAudioOnly) {
+            playlist.attributes.AUDIO = 'audio';
+            playlist.attributes.SUBTITLES = 'subs';
+        }
+        return playlist;
+    };
+    const formatVttPlaylist = ({
+                                   attributes,
+                                   segments,
+                                   mediaSequence,
+                                   discontinuityStarts,
+                                   discontinuitySequence
+                               }) => {
+        if (typeof segments === 'undefined') {
+            // vtt tracks may use single file in BaseURL
+            segments = [{
+                uri: attributes.baseUrl,
+                timeline: attributes.periodStart,
+                resolvedUri: attributes.baseUrl || '',
+                duration: attributes.sourceDuration,
+                number: 0
+            }]; // targetDuration should be the same duration as the only segment
+
+            attributes.duration = attributes.sourceDuration;
+        }
+        const m3u8Attributes = {
+            NAME: attributes.id,
+            BANDWIDTH: attributes.bandwidth,
+            ['PROGRAM-ID']: 1
+        };
+        if (attributes.codecs) {
+            m3u8Attributes.CODECS = attributes.codecs;
+        }
+        return {
+            attributes: m3u8Attributes,
+            uri: '',
+            endList: attributes.type === 'static',
+            timeline: attributes.periodStart,
+            resolvedUri: attributes.baseUrl || '',
+            targetDuration: attributes.duration,
+            timelineStarts: attributes.timelineStarts,
+            discontinuityStarts,
+            discontinuitySequence,
+            mediaSequence,
+            segments
+        };
+    };
+    const organizeAudioPlaylists = (playlists, sidxMapping = {}, isAudioOnly = false) => {
+        let mainPlaylist;
+        const formattedPlaylists = playlists.reduce((a, playlist) => {
+            const role = playlist.attributes.role && playlist.attributes.role.value || '';
+            const language = playlist.attributes.lang || '';
+            let label = playlist.attributes.label || 'main';
+            if (language && !playlist.attributes.label) {
+                const roleLabel = role ? ` (${role})` : '';
+                label = `${playlist.attributes.lang}${roleLabel}`;
+            }
+            if (!a[label]) {
+                a[label] = {
+                    language,
+                    autoselect: true,
+                    default: role === 'main',
+                    playlists: [],
+                    uri: ''
+                };
+            }
+            const formatted = addSidxSegmentsToPlaylist(formatAudioPlaylist(playlist, isAudioOnly), sidxMapping);
+            a[label].playlists.push(formatted);
+            if (typeof mainPlaylist === 'undefined' && role === 'main') {
+                mainPlaylist = playlist;
+                mainPlaylist.default = true;
+            }
+            return a;
+        }, {}); // if no playlists have role "main", mark the first as main
+
+        if (!mainPlaylist) {
+            const firstLabel = Object.keys(formattedPlaylists)[0];
+            formattedPlaylists[firstLabel].default = true;
+        }
+        return formattedPlaylists;
+    };
+    const organizeVttPlaylists = (playlists, sidxMapping = {}) => {
+        return playlists.reduce((a, playlist) => {
+            const label = playlist.attributes.lang || 'text';
+            if (!a[label]) {
+                a[label] = {
+                    language: label,
+                    default: false,
+                    autoselect: false,
+                    playlists: [],
+                    uri: ''
+                };
+            }
+            a[label].playlists.push(addSidxSegmentsToPlaylist(formatVttPlaylist(playlist), sidxMapping));
+            return a;
+        }, {});
+    };
+    const organizeCaptionServices = captionServices => captionServices.reduce((svcObj, svc) => {
+        if (!svc) {
+            return svcObj;
+        }
+        svc.forEach(service => {
+            const {
+                channel,
+                language
+            } = service;
+            svcObj[language] = {
+                autoselect: false,
+                default: false,
+                instreamId: channel,
+                language
+            };
+            if (service.hasOwnProperty('aspectRatio')) {
+                svcObj[language].aspectRatio = service.aspectRatio;
+            }
+            if (service.hasOwnProperty('easyReader')) {
+                svcObj[language].easyReader = service.easyReader;
+            }
+            if (service.hasOwnProperty('3D')) {
+                svcObj[language]['3D'] = service['3D'];
+            }
+        });
+        return svcObj;
+    }, {});
+    const formatVideoPlaylist = ({
+                                     attributes,
+                                     segments,
+                                     sidx,
+                                     discontinuityStarts
+                                 }) => {
+        const playlist = {
+            attributes: {
+                NAME: attributes.id,
+                AUDIO: 'audio',
+                SUBTITLES: 'subs',
+                RESOLUTION: {
+                    width: attributes.width,
+                    height: attributes.height
+                },
+                CODECS: attributes.codecs,
+                BANDWIDTH: attributes.bandwidth,
+                ['PROGRAM-ID']: 1
+            },
+            uri: '',
+            endList: attributes.type === 'static',
+            timeline: attributes.periodStart,
+            resolvedUri: '',
+            targetDuration: attributes.duration,
+            discontinuityStarts,
+            timelineStarts: attributes.timelineStarts,
+            segments
+        };
+        if (attributes.frameRate) {
+            playlist.attributes['FRAME-RATE'] = attributes.frameRate;
+        }
+        if (attributes.contentProtection) {
+            playlist.contentProtection = attributes.contentProtection;
+        }
+        if (sidx) {
+            playlist.sidx = sidx;
+        }
+        return playlist;
+    };
+    const videoOnly = ({
+                           attributes
+                       }) => attributes.mimeType === 'video/mp4' || attributes.mimeType === 'video/webm' || attributes.contentType === 'video';
+    const audioOnly = ({
+                           attributes
+                       }) => attributes.mimeType === 'audio/mp4' || attributes.mimeType === 'audio/webm' || attributes.contentType === 'audio';
+    const vttOnly = ({
+                         attributes
+                     }) => attributes.mimeType === 'text/vtt' || attributes.contentType === 'text';
+    /**
+     * Contains start and timeline properties denoting a timeline start. For DASH, these will
+     * be the same number.
+     *
+     * @typedef {Object} TimelineStart
+     * @property {number} start - the start time of the timeline
+     * @property {number} timeline - the timeline number
+     */
+
+    /**
+     * Adds appropriate media and discontinuity sequence values to the segments and playlists.
+     *
+     * Throughout mpd-parser, the `number` attribute is used in relation to `startNumber`, a
+     * DASH specific attribute used in constructing segment URI's from templates. However, from
+     * an HLS perspective, the `number` attribute on a segment would be its `mediaSequence`
+     * value, which should start at the original media sequence value (or 0) and increment by 1
+     * for each segment thereafter. Since DASH's `startNumber` values are independent per
+     * period, it doesn't make sense to use it for `number`. Instead, assume everything starts
+     * from a 0 mediaSequence value and increment from there.
+     *
+     * Note that VHS currently doesn't use the `number` property, but it can be helpful for
+     * debugging and making sense of the manifest.
+     *
+     * For live playlists, to account for values increasing in manifests when periods are
+     * removed on refreshes, merging logic should be used to update the numbers to their
+     * appropriate values (to ensure they're sequential and increasing).
+     *
+     * @param {Object[]} playlists - the playlists to update
+     * @param {TimelineStart[]} timelineStarts - the timeline starts for the manifest
+     */
+
+    const addMediaSequenceValues = (playlists, timelineStarts) => {
+        // increment all segments sequentially
+        playlists.forEach(playlist => {
+            playlist.mediaSequence = 0;
+            playlist.discontinuitySequence = timelineStarts.findIndex(function ({
+                                                                                    timeline
+                                                                                }) {
+                return timeline === playlist.timeline;
+            });
+            if (!playlist.segments) {
+                return;
+            }
+            playlist.segments.forEach((segment, index) => {
+                segment.number = index;
+            });
+        });
+    };
+    /**
+     * Given a media group object, flattens all playlists within the media group into a single
+     * array.
+     *
+     * @param {Object} mediaGroupObject - the media group object
+     *
+     * @return {Object[]}
+     *         The media group playlists
+     */
+
+    const flattenMediaGroupPlaylists = mediaGroupObject => {
+        if (!mediaGroupObject) {
+            return [];
+        }
+        return Object.keys(mediaGroupObject).reduce((acc, label) => {
+            const labelContents = mediaGroupObject[label];
+            return acc.concat(labelContents.playlists);
+        }, []);
+    };
+    const toM3u8 = ({
+                        dashPlaylists,
+                        locations,
+                        sidxMapping = {},
+                        previousManifest
+                    }) => {
+        if (!dashPlaylists.length) {
+            return {};
+        } // grab all main manifest attributes
+
+        const {
+            sourceDuration: duration,
+            type,
+            suggestedPresentationDelay,
+            minimumUpdatePeriod
+        } = dashPlaylists[0].attributes;
+        const videoPlaylists = mergeDiscontiguousPlaylists(dashPlaylists.filter(videoOnly)).map(formatVideoPlaylist);
+        const audioPlaylists = mergeDiscontiguousPlaylists(dashPlaylists.filter(audioOnly));
+        const vttPlaylists = mergeDiscontiguousPlaylists(dashPlaylists.filter(vttOnly));
+        const captions = dashPlaylists.map(playlist => playlist.attributes.captionServices).filter(Boolean);
+        const manifest = {
+            allowCache: true,
+            discontinuityStarts: [],
+            segments: [],
+            endList: true,
+            mediaGroups: {
+                AUDIO: {},
+                VIDEO: {},
+                ['CLOSED-CAPTIONS']: {},
+                SUBTITLES: {}
+            },
+            uri: '',
+            duration,
+            playlists: addSidxSegmentsToPlaylists(videoPlaylists, sidxMapping)
+        };
+        if (minimumUpdatePeriod >= 0) {
+            manifest.minimumUpdatePeriod = minimumUpdatePeriod * 1000;
+        }
+        if (locations) {
+            manifest.locations = locations;
+        }
+        if (type === 'dynamic') {
+            manifest.suggestedPresentationDelay = suggestedPresentationDelay;
+        }
+        const isAudioOnly = manifest.playlists.length === 0;
+        const organizedAudioGroup = audioPlaylists.length ? organizeAudioPlaylists(audioPlaylists, sidxMapping, isAudioOnly) : null;
+        const organizedVttGroup = vttPlaylists.length ? organizeVttPlaylists(vttPlaylists, sidxMapping) : null;
+        const formattedPlaylists = videoPlaylists.concat(flattenMediaGroupPlaylists(organizedAudioGroup), flattenMediaGroupPlaylists(organizedVttGroup));
+        const playlistTimelineStarts = formattedPlaylists.map(({
+                                                                   timelineStarts
+                                                               }) => timelineStarts);
+        manifest.timelineStarts = getUniqueTimelineStarts(playlistTimelineStarts);
+        addMediaSequenceValues(formattedPlaylists, manifest.timelineStarts);
+        if (organizedAudioGroup) {
+            manifest.mediaGroups.AUDIO.audio = organizedAudioGroup;
+        }
+        if (organizedVttGroup) {
+            manifest.mediaGroups.SUBTITLES.subs = organizedVttGroup;
+        }
+        if (captions.length) {
+            manifest.mediaGroups['CLOSED-CAPTIONS'].cc = organizeCaptionServices(captions);
+        }
+        if (previousManifest) {
+            return positionManifestOnTimeline({
+                oldManifest: previousManifest,
+                newManifest: manifest
+            });
+        }
+        return manifest;
+    };
+
+    /**
+     * Calculates the R (repetition) value for a live stream (for the final segment
+     * in a manifest where the r value is negative 1)
+     *
+     * @param {Object} attributes
+     *        Object containing all inherited attributes from parent elements with attribute
+     *        names as keys
+     * @param {number} time
+     *        current time (typically the total time up until the final segment)
+     * @param {number} duration
+     *        duration property for the given <S />
+     *
+     * @return {number}
+     *        R value to reach the end of the given period
+     */
+    const getLiveRValue = (attributes, time, duration) => {
+        const {
+            NOW,
+            clientOffset,
+            availabilityStartTime,
+            timescale = 1,
+            periodStart = 0,
+            minimumUpdatePeriod = 0
+        } = attributes;
+        const now = (NOW + clientOffset) / 1000;
+        const periodStartWC = availabilityStartTime + periodStart;
+        const periodEndWC = now + minimumUpdatePeriod;
+        const periodDuration = periodEndWC - periodStartWC;
+        return Math.ceil((periodDuration * timescale - time) / duration);
+    };
+    /**
+     * Uses information provided by SegmentTemplate.SegmentTimeline to determine segment
+     * timing and duration
+     *
+     * @param {Object} attributes
+     *        Object containing all inherited attributes from parent elements with attribute
+     *        names as keys
+     * @param {Object[]} segmentTimeline
+     *        List of objects representing the attributes of each S element contained within
+     *
+     * @return {{number: number, duration: number, time: number, timeline: number}[]}
+     *         List of Objects with segment timing and duration info
+     */
+
+    const parseByTimeline = (attributes, segmentTimeline) => {
+        const {
+            type,
+            minimumUpdatePeriod = 0,
+            media = '',
+            sourceDuration,
+            timescale = 1,
+            startNumber = 1,
+            periodStart: timeline
+        } = attributes;
+        const segments = [];
+        let time = -1;
+        for (let sIndex = 0; sIndex < segmentTimeline.length; sIndex++) {
+            const S = segmentTimeline[sIndex];
+            const duration = S.d;
+            const repeat = S.r || 0;
+            const segmentTime = S.t || 0;
+            if (time < 0) {
+                // first segment
+                time = segmentTime;
+            }
+            if (segmentTime && segmentTime > time) {
+                // discontinuity
+                // TODO: How to handle this type of discontinuity
+                // timeline++ here would treat it like HLS discontuity and content would
+                // get appended without gap
+                // E.G.
+                //  <S t="0" d="1" />
+                //  <S d="1" />
+                //  <S d="1" />
+                //  <S t="5" d="1" />
+                // would have $Time$ values of [0, 1, 2, 5]
+                // should this be appened at time positions [0, 1, 2, 3],(#EXT-X-DISCONTINUITY)
+                // or [0, 1, 2, gap, gap, 5]? (#EXT-X-GAP)
+                // does the value of sourceDuration consider this when calculating arbitrary
+                // negative @r repeat value?
+                // E.G. Same elements as above with this added at the end
+                //  <S d="1" r="-1" />
+                //  with a sourceDuration of 10
+                // Would the 2 gaps be included in the time duration calculations resulting in
+                // 8 segments with $Time$ values of [0, 1, 2, 5, 6, 7, 8, 9] or 10 segments
+                // with $Time$ values of [0, 1, 2, 5, 6, 7, 8, 9, 10, 11] ?
+                time = segmentTime;
+            }
+            let count;
+            if (repeat < 0) {
+                const nextS = sIndex + 1;
+                if (nextS === segmentTimeline.length) {
+                    // last segment
+                    if (type === 'dynamic' && minimumUpdatePeriod > 0 && media.indexOf('$Number$') > 0) {
+                        count = getLiveRValue(attributes, time, duration);
+                    } else {
+                        // TODO: This may be incorrect depending on conclusion of TODO above
+                        count = (sourceDuration * timescale - time) / duration;
+                    }
+                } else {
+                    count = (segmentTimeline[nextS].t - time) / duration;
+                }
+            } else {
+                count = repeat + 1;
+            }
+            const end = startNumber + segments.length + count;
+            let number = startNumber + segments.length;
+            while (number < end) {
+                segments.push({
+                    number,
+                    duration: duration / timescale,
+                    time,
+                    timeline
+                });
+                time += duration;
+                number++;
+            }
+        }
+        return segments;
+    };
+    const identifierPattern = /\$([A-z]*)(?:(%0)([0-9]+)d)?\$/g;
+    /**
+     * Replaces template identifiers with corresponding values. To be used as the callback
+     * for String.prototype.replace
+     *
+     * @name replaceCallback
+     * @function
+     * @param {string} match
+     *        Entire match of identifier
+     * @param {string} identifier
+     *        Name of matched identifier
+     * @param {string} format
+     *        Format tag string. Its presence indicates that padding is expected
+     * @param {string} width
+     *        Desired length of the replaced value. Values less than this width shall be left
+     *        zero padded
+     * @return {string}
+     *         Replacement for the matched identifier
+     */
+
+    /**
+     * Returns a function to be used as a callback for String.prototype.replace to replace
+     * template identifiers
+     *
+     * @param {Obect} values
+     *        Object containing values that shall be used to replace known identifiers
+     * @param {number} values.RepresentationID
+     *        Value of the Representation@id attribute
+     * @param {number} values.Number
+     *        Number of the corresponding segment
+     * @param {number} values.Bandwidth
+     *        Value of the Representation@bandwidth attribute.
+     * @param {number} values.Time
+     *        Timestamp value of the corresponding segment
+     * @return {replaceCallback}
+     *         Callback to be used with String.prototype.replace to replace identifiers
+     */
+
+    const identifierReplacement = values => (match, identifier, format, width) => {
+        if (match === '$$') {
+            // escape sequence
+            return '$';
+        }
+        if (typeof values[identifier] === 'undefined') {
+            return match;
+        }
+        const value = '' + values[identifier];
+        if (identifier === 'RepresentationID') {
+            // Format tag shall not be present with RepresentationID
+            return value;
+        }
+        if (!format) {
+            width = 1;
+        } else {
+            width = parseInt(width, 10);
+        }
+        if (value.length >= width) {
+            return value;
+        }
+        return `${new Array(width - value.length + 1).join('0')}${value}`;
+    };
+    /**
+     * Constructs a segment url from a template string
+     *
+     * @param {string} url
+     *        Template string to construct url from
+     * @param {Obect} values
+     *        Object containing values that shall be used to replace known identifiers
+     * @param {number} values.RepresentationID
+     *        Value of the Representation@id attribute
+     * @param {number} values.Number
+     *        Number of the corresponding segment
+     * @param {number} values.Bandwidth
+     *        Value of the Representation@bandwidth attribute.
+     * @param {number} values.Time
+     *        Timestamp value of the corresponding segment
+     * @return {string}
+     *         Segment url with identifiers replaced
+     */
+
+    const constructTemplateUrl = (url, values) => url.replace(identifierPattern, identifierReplacement(values));
+    /**
+     * Generates a list of objects containing timing and duration information about each
+     * segment needed to generate segment uris and the complete segment object
+     *
+     * @param {Object} attributes
+     *        Object containing all inherited attributes from parent elements with attribute
+     *        names as keys
+     * @param {Object[]|undefined} segmentTimeline
+     *        List of objects representing the attributes of each S element contained within
+     *        the SegmentTimeline element
+     * @return {{number: number, duration: number, time: number, timeline: number}[]}
+     *         List of Objects with segment timing and duration info
+     */
+
+    const parseTemplateInfo = (attributes, segmentTimeline) => {
+        if (!attributes.duration && !segmentTimeline) {
+            // if neither @duration or SegmentTimeline are present, then there shall be exactly
+            // one media segment
+            return [{
+                number: attributes.startNumber || 1,
+                duration: attributes.sourceDuration,
+                time: 0,
+                timeline: attributes.periodStart
+            }];
+        }
+        if (attributes.duration) {
+            return parseByDuration(attributes);
+        }
+        return parseByTimeline(attributes, segmentTimeline);
+    };
+    /**
+     * Generates a list of segments using information provided by the SegmentTemplate element
+     *
+     * @param {Object} attributes
+     *        Object containing all inherited attributes from parent elements with attribute
+     *        names as keys
+     * @param {Object[]|undefined} segmentTimeline
+     *        List of objects representing the attributes of each S element contained within
+     *        the SegmentTimeline element
+     * @return {Object[]}
+     *         List of segment objects
+     */
+
+    const segmentsFromTemplate = (attributes, segmentTimeline) => {
+        const templateValues = {
+            RepresentationID: attributes.id,
+            Bandwidth: attributes.bandwidth || 0
+        };
+        const {
+            initialization = {
+                sourceURL: '',
+                range: ''
+            }
+        } = attributes;
+        const mapSegment = urlTypeToSegment({
+            baseUrl: attributes.baseUrl,
+            source: constructTemplateUrl(initialization.sourceURL, templateValues),
+            range: initialization.range
+        });
+        const segments = parseTemplateInfo(attributes, segmentTimeline);
+        return segments.map(segment => {
+            templateValues.Number = segment.number;
+            templateValues.Time = segment.time;
+            const uri = constructTemplateUrl(attributes.media || '', templateValues); // See DASH spec section 5.3.9.2.2
+            // - if timescale isn't present on any level, default to 1.
+
+            const timescale = attributes.timescale || 1; // - if presentationTimeOffset isn't present on any level, default to 0
+
+            const presentationTimeOffset = attributes.presentationTimeOffset || 0;
+            const presentationTime =
+                // Even if the @t attribute is not specified for the segment, segment.time is
+                // calculated in mpd-parser prior to this, so it's assumed to be available.
+                attributes.periodStart + (segment.time - presentationTimeOffset) / timescale;
+            const map = {
+                uri,
+                timeline: segment.timeline,
+                duration: segment.duration,
+                resolvedUri: resolveUrl$1(attributes.baseUrl || '', uri),
+                map: mapSegment,
+                number: segment.number,
+                presentationTime
+            };
+            return map;
+        });
+    };
+
+    /**
+     * Converts a <SegmentUrl> (of type URLType from the DASH spec 5.3.9.2 Table 14)
+     * to an object that matches the output of a segment in videojs/mpd-parser
+     *
+     * @param {Object} attributes
+     *   Object containing all inherited attributes from parent elements with attribute
+     *   names as keys
+     * @param {Object} segmentUrl
+     *   <SegmentURL> node to translate into a segment object
+     * @return {Object} translated segment object
+     */
+
+    const SegmentURLToSegmentObject = (attributes, segmentUrl) => {
+        const {
+            baseUrl,
+            initialization = {}
+        } = attributes;
+        const initSegment = urlTypeToSegment({
+            baseUrl,
+            source: initialization.sourceURL,
+            range: initialization.range
+        });
+        const segment = urlTypeToSegment({
+            baseUrl,
+            source: segmentUrl.media,
+            range: segmentUrl.mediaRange
+        });
+        segment.map = initSegment;
+        return segment;
+    };
+    /**
+     * Generates a list of segments using information provided by the SegmentList element
+     * SegmentList (DASH SPEC Section 5.3.9.3.2) contains a set of <SegmentURL> nodes.  Each
+     * node should be translated into segment.
+     *
+     * @param {Object} attributes
+     *   Object containing all inherited attributes from parent elements with attribute
+     *   names as keys
+     * @param {Object[]|undefined} segmentTimeline
+     *        List of objects representing the attributes of each S element contained within
+     *        the SegmentTimeline element
+     * @return {Object.<Array>} list of segments
+     */
+
+    const segmentsFromList = (attributes, segmentTimeline) => {
+        const {
+            duration,
+            segmentUrls = [],
+            periodStart
+        } = attributes; // Per spec (5.3.9.2.1) no way to determine segment duration OR
+        // if both SegmentTimeline and @duration are defined, it is outside of spec.
+
+        if (!duration && !segmentTimeline || duration && segmentTimeline) {
+            throw new Error(errors.SEGMENT_TIME_UNSPECIFIED);
+        }
+        const segmentUrlMap = segmentUrls.map(segmentUrlObject => SegmentURLToSegmentObject(attributes, segmentUrlObject));
+        let segmentTimeInfo;
+        if (duration) {
+            segmentTimeInfo = parseByDuration(attributes);
+        }
+        if (segmentTimeline) {
+            segmentTimeInfo = parseByTimeline(attributes, segmentTimeline);
+        }
+        const segments = segmentTimeInfo.map((segmentTime, index) => {
+            if (segmentUrlMap[index]) {
+                const segment = segmentUrlMap[index]; // See DASH spec section 5.3.9.2.2
+                // - if timescale isn't present on any level, default to 1.
+
+                const timescale = attributes.timescale || 1; // - if presentationTimeOffset isn't present on any level, default to 0
+
+                const presentationTimeOffset = attributes.presentationTimeOffset || 0;
+                segment.timeline = segmentTime.timeline;
+                segment.duration = segmentTime.duration;
+                segment.number = segmentTime.number;
+                segment.presentationTime = periodStart + (segmentTime.time - presentationTimeOffset) / timescale;
+                return segment;
+            } // Since we're mapping we should get rid of any blank segments (in case
+            // the given SegmentTimeline is handling for more elements than we have
+            // SegmentURLs for).
+        }).filter(segment => segment);
+        return segments;
+    };
+    const generateSegments = ({
+                                  attributes,
+                                  segmentInfo
+                              }) => {
+        let segmentAttributes;
+        let segmentsFn;
+        if (segmentInfo.template) {
+            segmentsFn = segmentsFromTemplate;
+            segmentAttributes = merge$1(attributes, segmentInfo.template);
+        } else if (segmentInfo.base) {
+            segmentsFn = segmentsFromBase;
+            segmentAttributes = merge$1(attributes, segmentInfo.base);
+        } else if (segmentInfo.list) {
+            segmentsFn = segmentsFromList;
+            segmentAttributes = merge$1(attributes, segmentInfo.list);
+        }
+        const segmentsInfo = {
+            attributes
+        };
+        if (!segmentsFn) {
+            return segmentsInfo;
+        }
+        const segments = segmentsFn(segmentAttributes, segmentInfo.segmentTimeline); // The @duration attribute will be used to determin the playlist's targetDuration which
+        // must be in seconds. Since we've generated the segment list, we no longer need
+        // @duration to be in @timescale units, so we can convert it here.
+
+        if (segmentAttributes.duration) {
+            const {
+                duration,
+                timescale = 1
+            } = segmentAttributes;
+            segmentAttributes.duration = duration / timescale;
+        } else if (segments.length) {
+            // if there is no @duration attribute, use the largest segment duration as
+            // as target duration
+            segmentAttributes.duration = segments.reduce((max, segment) => {
+                return Math.max(max, Math.ceil(segment.duration));
+            }, 0);
+        } else {
+            segmentAttributes.duration = 0;
+        }
+        segmentsInfo.attributes = segmentAttributes;
+        segmentsInfo.segments = segments; // This is a sidx box without actual segment information
+
+        if (segmentInfo.base && segmentAttributes.indexRange) {
+            segmentsInfo.sidx = segments[0];
+            segmentsInfo.segments = [];
+        }
+        return segmentsInfo;
+    };
+    const toPlaylists = representations => representations.map(generateSegments);
+    const findChildren = (element, name) => from(element.childNodes).filter(({
+                                                                                 tagName
+                                                                             }) => tagName === name);
+    const getContent = element => element.textContent.trim();
+
+    /**
+     * Converts the provided string that may contain a division operation to a number.
+     *
+     * @param {string} value - the provided string value
+     *
+     * @return {number} the parsed string value
+     */
+    const parseDivisionValue = value => {
+        return parseFloat(value.split('/').reduce((prev, current) => prev / current));
+    };
+    const parseDuration = str => {
+        const SECONDS_IN_YEAR = 365 * 24 * 60 * 60;
+        const SECONDS_IN_MONTH = 30 * 24 * 60 * 60;
+        const SECONDS_IN_DAY = 24 * 60 * 60;
+        const SECONDS_IN_HOUR = 60 * 60;
+        const SECONDS_IN_MIN = 60; // P10Y10M10DT10H10M10.1S
+
+        const durationRegex = /P(?:(\d*)Y)?(?:(\d*)M)?(?:(\d*)D)?(?:T(?:(\d*)H)?(?:(\d*)M)?(?:([\d.]*)S)?)?/;
+        const match = durationRegex.exec(str);
+        if (!match) {
+            return 0;
+        }
+        const [year, month, day, hour, minute, second] = match.slice(1);
+        return parseFloat(year || 0) * SECONDS_IN_YEAR + parseFloat(month || 0) * SECONDS_IN_MONTH + parseFloat(day || 0) * SECONDS_IN_DAY + parseFloat(hour || 0) * SECONDS_IN_HOUR + parseFloat(minute || 0) * SECONDS_IN_MIN + parseFloat(second || 0);
+    };
+    const parseDate = str => {
+        // Date format without timezone according to ISO 8601
+        // YYY-MM-DDThh:mm:ss.ssssss
+        const dateRegex = /^\d+-\d+-\d+T\d+:\d+:\d+(\.\d+)?$/; // If the date string does not specifiy a timezone, we must specifiy UTC. This is
+        // expressed by ending with 'Z'
+
+        if (dateRegex.test(str)) {
+            str += 'Z';
+        }
+        return Date.parse(str);
+    };
+    const parsers = {
+        /**
+         * Specifies the duration of the entire Media Presentation. Format is a duration string
+         * as specified in ISO 8601
+         *
+         * @param {string} value
+         *        value of attribute as a string
+         * @return {number}
+         *         The duration in seconds
+         */
+        mediaPresentationDuration(value) {
+            return parseDuration(value);
+        },
+        /**
+         * Specifies the Segment availability start time for all Segments referred to in this
+         * MPD. For a dynamic manifest, it specifies the anchor for the earliest availability
+         * time. Format is a date string as specified in ISO 8601
+         *
+         * @param {string} value
+         *        value of attribute as a string
+         * @return {number}
+         *         The date as seconds from unix epoch
+         */
+        availabilityStartTime(value) {
+            return parseDate(value) / 1000;
+        },
+        /**
+         * Specifies the smallest period between potential changes to the MPD. Format is a
+         * duration string as specified in ISO 8601
+         *
+         * @param {string} value
+         *        value of attribute as a string
+         * @return {number}
+         *         The duration in seconds
+         */
+        minimumUpdatePeriod(value) {
+            return parseDuration(value);
+        },
+        /**
+         * Specifies the suggested presentation delay. Format is a
+         * duration string as specified in ISO 8601
+         *
+         * @param {string} value
+         *        value of attribute as a string
+         * @return {number}
+         *         The duration in seconds
+         */
+        suggestedPresentationDelay(value) {
+            return parseDuration(value);
+        },
+        /**
+         * specifices the type of mpd. Can be either "static" or "dynamic"
+         *
+         * @param {string} value
+         *        value of attribute as a string
+         *
+         * @return {string}
+         *         The type as a string
+         */
+        type(value) {
+            return value;
+        },
+        /**
+         * Specifies the duration of the smallest time shifting buffer for any Representation
+         * in the MPD. Format is a duration string as specified in ISO 8601
+         *
+         * @param {string} value
+         *        value of attribute as a string
+         * @return {number}
+         *         The duration in seconds
+         */
+        timeShiftBufferDepth(value) {
+            return parseDuration(value);
+        },
+        /**
+         * Specifies the PeriodStart time of the Period relative to the availabilityStarttime.
+         * Format is a duration string as specified in ISO 8601
+         *
+         * @param {string} value
+         *        value of attribute as a string
+         * @return {number}
+         *         The duration in seconds
+         */
+        start(value) {
+            return parseDuration(value);
+        },
+        /**
+         * Specifies the width of the visual presentation
+         *
+         * @param {string} value
+         *        value of attribute as a string
+         * @return {number}
+         *         The parsed width
+         */
+        width(value) {
+            return parseInt(value, 10);
+        },
+        /**
+         * Specifies the height of the visual presentation
+         *
+         * @param {string} value
+         *        value of attribute as a string
+         * @return {number}
+         *         The parsed height
+         */
+        height(value) {
+            return parseInt(value, 10);
+        },
+        /**
+         * Specifies the bitrate of the representation
+         *
+         * @param {string} value
+         *        value of attribute as a string
+         * @return {number}
+         *         The parsed bandwidth
+         */
+        bandwidth(value) {
+            return parseInt(value, 10);
+        },
+        /**
+         * Specifies the frame rate of the representation
+         *
+         * @param {string} value
+         *        value of attribute as a string
+         * @return {number}
+         *         The parsed frame rate
+         */
+        frameRate(value) {
+            return parseDivisionValue(value);
+        },
+        /**
+         * Specifies the number of the first Media Segment in this Representation in the Period
+         *
+         * @param {string} value
+         *        value of attribute as a string
+         * @return {number}
+         *         The parsed number
+         */
+        startNumber(value) {
+            return parseInt(value, 10);
+        },
+        /**
+         * Specifies the timescale in units per seconds
+         *
+         * @param {string} value
+         *        value of attribute as a string
+         * @return {number}
+         *         The parsed timescale
+         */
+        timescale(value) {
+            return parseInt(value, 10);
+        },
+        /**
+         * Specifies the presentationTimeOffset.
+         *
+         * @param {string} value
+         *        value of the attribute as a string
+         *
+         * @return {number}
+         *         The parsed presentationTimeOffset
+         */
+        presentationTimeOffset(value) {
+            return parseInt(value, 10);
+        },
+        /**
+         * Specifies the constant approximate Segment duration
+         * NOTE: The <Period> element also contains an @duration attribute. This duration
+         *       specifies the duration of the Period. This attribute is currently not
+         *       supported by the rest of the parser, however we still check for it to prevent
+         *       errors.
+         *
+         * @param {string} value
+         *        value of attribute as a string
+         * @return {number}
+         *         The parsed duration
+         */
+        duration(value) {
+            const parsedValue = parseInt(value, 10);
+            if (isNaN(parsedValue)) {
+                return parseDuration(value);
+            }
+            return parsedValue;
+        },
+        /**
+         * Specifies the Segment duration, in units of the value of the @timescale.
+         *
+         * @param {string} value
+         *        value of attribute as a string
+         * @return {number}
+         *         The parsed duration
+         */
+        d(value) {
+            return parseInt(value, 10);
+        },
+        /**
+         * Specifies the MPD start time, in @timescale units, the first Segment in the series
+         * starts relative to the beginning of the Period
+         *
+         * @param {string} value
+         *        value of attribute as a string
+         * @return {number}
+         *         The parsed time
+         */
+        t(value) {
+            return parseInt(value, 10);
+        },
+        /**
+         * Specifies the repeat count of the number of following contiguous Segments with the
+         * same duration expressed by the value of @d
+         *
+         * @param {string} value
+         *        value of attribute as a string
+         * @return {number}
+         *         The parsed number
+         */
+        r(value) {
+            return parseInt(value, 10);
+        },
+        /**
+         * Default parser for all other attributes. Acts as a no-op and just returns the value
+         * as a string
+         *
+         * @param {string} value
+         *        value of attribute as a string
+         * @return {string}
+         *         Unparsed value
+         */
+        DEFAULT(value) {
+            return value;
+        }
+    };
+    /**
+     * Gets all the attributes and values of the provided node, parses attributes with known
+     * types, and returns an object with attribute names mapped to values.
+     *
+     * @param {Node} el
+     *        The node to parse attributes from
+     * @return {Object}
+     *         Object with all attributes of el parsed
+     */
+
+    const parseAttributes = el => {
+        if (!(el && el.attributes)) {
+            return {};
+        }
+        return from(el.attributes).reduce((a, e) => {
+            const parseFn = parsers[e.name] || parsers.DEFAULT;
+            a[e.name] = parseFn(e.value);
+            return a;
+        }, {});
+    };
+    const keySystemsMap = {
+        'urn:uuid:1077efec-c0b2-4d02-ace3-3c1e52e2fb4b': 'org.w3.clearkey',
+        'urn:uuid:edef8ba9-79d6-4ace-a3c8-27dcd51d21ed': 'com.widevine.alpha',
+        'urn:uuid:9a04f079-9840-4286-ab92-e65be0885f95': 'com.microsoft.playready',
+        'urn:uuid:f239e769-efa3-4850-9c16-a903c6932efb': 'com.adobe.primetime'
+    };
+    /**
+     * Builds a list of urls that is the product of the reference urls and BaseURL values
+     *
+     * @param {string[]} referenceUrls
+     *        List of reference urls to resolve to
+     * @param {Node[]} baseUrlElements
+     *        List of BaseURL nodes from the mpd
+     * @return {string[]}
+     *         List of resolved urls
+     */
+
+    const buildBaseUrls = (referenceUrls, baseUrlElements) => {
+        if (!baseUrlElements.length) {
+            return referenceUrls;
+        }
+        return flatten(referenceUrls.map(function (reference) {
+            return baseUrlElements.map(function (baseUrlElement) {
+                return resolveUrl$1(reference, getContent(baseUrlElement));
+            });
+        }));
+    };
+    /**
+     * Contains all Segment information for its containing AdaptationSet
+     *
+     * @typedef {Object} SegmentInformation
+     * @property {Object|undefined} template
+     *           Contains the attributes for the SegmentTemplate node
+     * @property {Object[]|undefined} segmentTimeline
+     *           Contains a list of atrributes for each S node within the SegmentTimeline node
+     * @property {Object|undefined} list
+     *           Contains the attributes for the SegmentList node
+     * @property {Object|undefined} base
+     *           Contains the attributes for the SegmentBase node
+     */
+
+    /**
+     * Returns all available Segment information contained within the AdaptationSet node
+     *
+     * @param {Node} adaptationSet
+     *        The AdaptationSet node to get Segment information from
+     * @return {SegmentInformation}
+     *         The Segment information contained within the provided AdaptationSet
+     */
+
+    const getSegmentInformation = adaptationSet => {
+        const segmentTemplate = findChildren(adaptationSet, 'SegmentTemplate')[0];
+        const segmentList = findChildren(adaptationSet, 'SegmentList')[0];
+        const segmentUrls = segmentList && findChildren(segmentList, 'SegmentURL').map(s => merge$1({
+            tag: 'SegmentURL'
+        }, parseAttributes(s)));
+        const segmentBase = findChildren(adaptationSet, 'SegmentBase')[0];
+        const segmentTimelineParentNode = segmentList || segmentTemplate;
+        const segmentTimeline = segmentTimelineParentNode && findChildren(segmentTimelineParentNode, 'SegmentTimeline')[0];
+        const segmentInitializationParentNode = segmentList || segmentBase || segmentTemplate;
+        const segmentInitialization = segmentInitializationParentNode && findChildren(segmentInitializationParentNode, 'Initialization')[0]; // SegmentTemplate is handled slightly differently, since it can have both
+        // @initialization and an <Initialization> node.  @initialization can be templated,
+        // while the node can have a url and range specified.  If the <SegmentTemplate> has
+        // both @initialization and an <Initialization> subelement we opt to override with
+        // the node, as this interaction is not defined in the spec.
+
+        const template = segmentTemplate && parseAttributes(segmentTemplate);
+        if (template && segmentInitialization) {
+            template.initialization = segmentInitialization && parseAttributes(segmentInitialization);
+        } else if (template && template.initialization) {
+            // If it is @initialization we convert it to an object since this is the format that
+            // later functions will rely on for the initialization segment.  This is only valid
+            // for <SegmentTemplate>
+            template.initialization = {
+                sourceURL: template.initialization
+            };
+        }
+        const segmentInfo = {
+            template,
+            segmentTimeline: segmentTimeline && findChildren(segmentTimeline, 'S').map(s => parseAttributes(s)),
+            list: segmentList && merge$1(parseAttributes(segmentList), {
+                segmentUrls,
+                initialization: parseAttributes(segmentInitialization)
+            }),
+            base: segmentBase && merge$1(parseAttributes(segmentBase), {
+                initialization: parseAttributes(segmentInitialization)
+            })
+        };
+        Object.keys(segmentInfo).forEach(key => {
+            if (!segmentInfo[key]) {
+                delete segmentInfo[key];
+            }
+        });
+        return segmentInfo;
+    };
+    /**
+     * Contains Segment information and attributes needed to construct a Playlist object
+     * from a Representation
+     *
+     * @typedef {Object} RepresentationInformation
+     * @property {SegmentInformation} segmentInfo
+     *           Segment information for this Representation
+     * @property {Object} attributes
+     *           Inherited attributes for this Representation
+     */
+
+    /**
+     * Maps a Representation node to an object containing Segment information and attributes
+     *
+     * @name inheritBaseUrlsCallback
+     * @function
+     * @param {Node} representation
+     *        Representation node from the mpd
+     * @return {RepresentationInformation}
+     *         Representation information needed to construct a Playlist object
+     */
+
+    /**
+     * Returns a callback for Array.prototype.map for mapping Representation nodes to
+     * Segment information and attributes using inherited BaseURL nodes.
+     *
+     * @param {Object} adaptationSetAttributes
+     *        Contains attributes inherited by the AdaptationSet
+     * @param {string[]} adaptationSetBaseUrls
+     *        Contains list of resolved base urls inherited by the AdaptationSet
+     * @param {SegmentInformation} adaptationSetSegmentInfo
+     *        Contains Segment information for the AdaptationSet
+     * @return {inheritBaseUrlsCallback}
+     *         Callback map function
+     */
+
+    const inheritBaseUrls = (adaptationSetAttributes, adaptationSetBaseUrls, adaptationSetSegmentInfo) => representation => {
+        const repBaseUrlElements = findChildren(representation, 'BaseURL');
+        const repBaseUrls = buildBaseUrls(adaptationSetBaseUrls, repBaseUrlElements);
+        const attributes = merge$1(adaptationSetAttributes, parseAttributes(representation));
+        const representationSegmentInfo = getSegmentInformation(representation);
+        return repBaseUrls.map(baseUrl => {
+            return {
+                segmentInfo: merge$1(adaptationSetSegmentInfo, representationSegmentInfo),
+                attributes: merge$1(attributes, {
+                    baseUrl
+                })
+            };
+        });
+    };
+    /**
+     * Tranforms a series of content protection nodes to
+     * an object containing pssh data by key system
+     *
+     * @param {Node[]} contentProtectionNodes
+     *        Content protection nodes
+     * @return {Object}
+     *        Object containing pssh data by key system
+     */
+
+    const generateKeySystemInformation = contentProtectionNodes => {
+        return contentProtectionNodes.reduce((acc, node) => {
+            const attributes = parseAttributes(node); // Although it could be argued that according to the UUID RFC spec the UUID string (a-f chars) should be generated
+            // as a lowercase string it also mentions it should be treated as case-insensitive on input. Since the key system
+            // UUIDs in the keySystemsMap are hardcoded as lowercase in the codebase there isn't any reason not to do
+            // .toLowerCase() on the input UUID string from the manifest (at least I could not think of one).
+
+            if (attributes.schemeIdUri) {
+                attributes.schemeIdUri = attributes.schemeIdUri.toLowerCase();
+            }
+            const keySystem = keySystemsMap[attributes.schemeIdUri];
+            if (keySystem) {
+                acc[keySystem] = {
+                    attributes
+                };
+                const psshNode = findChildren(node, 'cenc:pssh')[0];
+                if (psshNode) {
+                    const pssh = getContent(psshNode);
+                    acc[keySystem].pssh = pssh && decodeB64ToUint8Array(pssh);
+                }
+            }
+            return acc;
+        }, {});
+    }; // defined in ANSI_SCTE 214-1 2016
+
+    const parseCaptionServiceMetadata = service => {
+        // 608 captions
+        if (service.schemeIdUri === 'urn:scte:dash:cc:cea-608:2015') {
+            const values = typeof service.value !== 'string' ? [] : service.value.split(';');
+            return values.map(value => {
+                let channel;
+                let language; // default language to value
+
+                language = value;
+                if (/^CC\d=/.test(value)) {
+                    [channel, language] = value.split('=');
+                } else if (/^CC\d$/.test(value)) {
+                    channel = value;
+                }
+                return {
+                    channel,
+                    language
+                };
+            });
+        } else if (service.schemeIdUri === 'urn:scte:dash:cc:cea-708:2015') {
+            const values = typeof service.value !== 'string' ? [] : service.value.split(';');
+            return values.map(value => {
+                const flags = {
+                    // service or channel number 1-63
+                    'channel': undefined,
+                    // language is a 3ALPHA per ISO 639.2/B
+                    // field is required
+                    'language': undefined,
+                    // BIT 1/0 or ?
+                    // default value is 1, meaning 16:9 aspect ratio, 0 is 4:3, ? is unknown
+                    'aspectRatio': 1,
+                    // BIT 1/0
+                    // easy reader flag indicated the text is tailed to the needs of beginning readers
+                    // default 0, or off
+                    'easyReader': 0,
+                    // BIT 1/0
+                    // If 3d metadata is present (CEA-708.1) then 1
+                    // default 0
+                    '3D': 0
+                };
+                if (/=/.test(value)) {
+                    const [channel, opts = ''] = value.split('=');
+                    flags.channel = channel;
+                    flags.language = value;
+                    opts.split(',').forEach(opt => {
+                        const [name, val] = opt.split(':');
+                        if (name === 'lang') {
+                            flags.language = val; // er for easyReadery
+                        } else if (name === 'er') {
+                            flags.easyReader = Number(val); // war for wide aspect ratio
+                        } else if (name === 'war') {
+                            flags.aspectRatio = Number(val);
+                        } else if (name === '3D') {
+                            flags['3D'] = Number(val);
+                        }
+                    });
+                } else {
+                    flags.language = value;
+                }
+                if (flags.channel) {
+                    flags.channel = 'SERVICE' + flags.channel;
+                }
+                return flags;
+            });
+        }
+    };
+    /**
+     * Maps an AdaptationSet node to a list of Representation information objects
+     *
+     * @name toRepresentationsCallback
+     * @function
+     * @param {Node} adaptationSet
+     *        AdaptationSet node from the mpd
+     * @return {RepresentationInformation[]}
+     *         List of objects containing Representaion information
+     */
+
+    /**
+     * Returns a callback for Array.prototype.map for mapping AdaptationSet nodes to a list of
+     * Representation information objects
+     *
+     * @param {Object} periodAttributes
+     *        Contains attributes inherited by the Period
+     * @param {string[]} periodBaseUrls
+     *        Contains list of resolved base urls inherited by the Period
+     * @param {string[]} periodSegmentInfo
+     *        Contains Segment Information at the period level
+     * @return {toRepresentationsCallback}
+     *         Callback map function
+     */
+
+    const toRepresentations = (periodAttributes, periodBaseUrls, periodSegmentInfo) => adaptationSet => {
+        const adaptationSetAttributes = parseAttributes(adaptationSet);
+        const adaptationSetBaseUrls = buildBaseUrls(periodBaseUrls, findChildren(adaptationSet, 'BaseURL'));
+        const role = findChildren(adaptationSet, 'Role')[0];
+        const roleAttributes = {
+            role: parseAttributes(role)
+        };
+        let attrs = merge$1(periodAttributes, adaptationSetAttributes, roleAttributes);
+        const accessibility = findChildren(adaptationSet, 'Accessibility')[0];
+        const captionServices = parseCaptionServiceMetadata(parseAttributes(accessibility));
+        if (captionServices) {
+            attrs = merge$1(attrs, {
+                captionServices
+            });
+        }
+        const label = findChildren(adaptationSet, 'Label')[0];
+        if (label && label.childNodes.length) {
+            const labelVal = label.childNodes[0].nodeValue.trim();
+            attrs = merge$1(attrs, {
+                label: labelVal
+            });
+        }
+        const contentProtection = generateKeySystemInformation(findChildren(adaptationSet, 'ContentProtection'));
+        if (Object.keys(contentProtection).length) {
+            attrs = merge$1(attrs, {
+                contentProtection
+            });
+        }
+        const segmentInfo = getSegmentInformation(adaptationSet);
+        const representations = findChildren(adaptationSet, 'Representation');
+        const adaptationSetSegmentInfo = merge$1(periodSegmentInfo, segmentInfo);
+        return flatten(representations.map(inheritBaseUrls(attrs, adaptationSetBaseUrls, adaptationSetSegmentInfo)));
+    };
+    /**
+     * Contains all period information for mapping nodes onto adaptation sets.
+     *
+     * @typedef {Object} PeriodInformation
+     * @property {Node} period.node
+     *           Period node from the mpd
+     * @property {Object} period.attributes
+     *           Parsed period attributes from node plus any added
+     */
+
+    /**
+     * Maps a PeriodInformation object to a list of Representation information objects for all
+     * AdaptationSet nodes contained within the Period.
+     *
+     * @name toAdaptationSetsCallback
+     * @function
+     * @param {PeriodInformation} period
+     *        Period object containing necessary period information
+     * @param {number} periodStart
+     *        Start time of the Period within the mpd
+     * @return {RepresentationInformation[]}
+     *         List of objects containing Representaion information
+     */
+
+    /**
+     * Returns a callback for Array.prototype.map for mapping Period nodes to a list of
+     * Representation information objects
+     *
+     * @param {Object} mpdAttributes
+     *        Contains attributes inherited by the mpd
+     * @param {string[]} mpdBaseUrls
+     *        Contains list of resolved base urls inherited by the mpd
+     * @return {toAdaptationSetsCallback}
+     *         Callback map function
+     */
+
+    const toAdaptationSets = (mpdAttributes, mpdBaseUrls) => (period, index) => {
+        const periodBaseUrls = buildBaseUrls(mpdBaseUrls, findChildren(period.node, 'BaseURL'));
+        const periodAttributes = merge$1(mpdAttributes, {
+            periodStart: period.attributes.start
+        });
+        if (typeof period.attributes.duration === 'number') {
+            periodAttributes.periodDuration = period.attributes.duration;
+        }
+        const adaptationSets = findChildren(period.node, 'AdaptationSet');
+        const periodSegmentInfo = getSegmentInformation(period.node);
+        return flatten(adaptationSets.map(toRepresentations(periodAttributes, periodBaseUrls, periodSegmentInfo)));
+    };
+    /**
+     * Gets Period@start property for a given period.
+     *
+     * @param {Object} options
+     *        Options object
+     * @param {Object} options.attributes
+     *        Period attributes
+     * @param {Object} [options.priorPeriodAttributes]
+     *        Prior period attributes (if prior period is available)
+     * @param {string} options.mpdType
+     *        The MPD@type these periods came from
+     * @return {number|null}
+     *         The period start, or null if it's an early available period or error
+     */
+
+    const getPeriodStart = ({
+                                attributes,
+                                priorPeriodAttributes,
+                                mpdType
+                            }) => {
+        // Summary of period start time calculation from DASH spec section 5.3.2.1
+        //
+        // A period's start is the first period's start + time elapsed after playing all
+        // prior periods to this one. Periods continue one after the other in time (without
+        // gaps) until the end of the presentation.
+        //
+        // The value of Period@start should be:
+        // 1. if Period@start is present: value of Period@start
+        // 2. if previous period exists and it has @duration: previous Period@start +
+        //    previous Period@duration
+        // 3. if this is first period and MPD@type is 'static': 0
+        // 4. in all other cases, consider the period an "early available period" (note: not
+        //    currently supported)
+        // (1)
+        if (typeof attributes.start === 'number') {
+            return attributes.start;
+        } // (2)
+
+        if (priorPeriodAttributes && typeof priorPeriodAttributes.start === 'number' && typeof priorPeriodAttributes.duration === 'number') {
+            return priorPeriodAttributes.start + priorPeriodAttributes.duration;
+        } // (3)
+
+        if (!priorPeriodAttributes && mpdType === 'static') {
+            return 0;
+        } // (4)
+        // There is currently no logic for calculating the Period@start value if there is
+        // no Period@start or prior Period@start and Period@duration available. This is not made
+        // explicit by the DASH interop guidelines or the DASH spec, however, since there's
+        // nothing about any other resolution strategies, it's implied. Thus, this case should
+        // be considered an early available period, or error, and null should suffice for both
+        // of those cases.
+
+        return null;
+    };
+    /**
+     * Traverses the mpd xml tree to generate a list of Representation information objects
+     * that have inherited attributes from parent nodes
+     *
+     * @param {Node} mpd
+     *        The root node of the mpd
+     * @param {Object} options
+     *        Available options for inheritAttributes
+     * @param {string} options.manifestUri
+     *        The uri source of the mpd
+     * @param {number} options.NOW
+     *        Current time per DASH IOP.  Default is current time in ms since epoch
+     * @param {number} options.clientOffset
+     *        Client time difference from NOW (in milliseconds)
+     * @return {RepresentationInformation[]}
+     *         List of objects containing Representation information
+     */
+
+    const inheritAttributes = (mpd, options = {}) => {
+        const {
+            manifestUri = '',
+            NOW = Date.now(),
+            clientOffset = 0
+        } = options;
+        const periodNodes = findChildren(mpd, 'Period');
+        if (!periodNodes.length) {
+            throw new Error(errors.INVALID_NUMBER_OF_PERIOD);
+        }
+        const locations = findChildren(mpd, 'Location');
+        const mpdAttributes = parseAttributes(mpd);
+        const mpdBaseUrls = buildBaseUrls([manifestUri], findChildren(mpd, 'BaseURL')); // See DASH spec section 5.3.1.2, Semantics of MPD element. Default type to 'static'.
+
+        mpdAttributes.type = mpdAttributes.type || 'static';
+        mpdAttributes.sourceDuration = mpdAttributes.mediaPresentationDuration || 0;
+        mpdAttributes.NOW = NOW;
+        mpdAttributes.clientOffset = clientOffset;
+        if (locations.length) {
+            mpdAttributes.locations = locations.map(getContent);
+        }
+        const periods = []; // Since toAdaptationSets acts on individual periods right now, the simplest approach to
+        // adding properties that require looking at prior periods is to parse attributes and add
+        // missing ones before toAdaptationSets is called. If more such properties are added, it
+        // may be better to refactor toAdaptationSets.
+
+        periodNodes.forEach((node, index) => {
+            const attributes = parseAttributes(node); // Use the last modified prior period, as it may contain added information necessary
+            // for this period.
+
+            const priorPeriod = periods[index - 1];
+            attributes.start = getPeriodStart({
+                attributes,
+                priorPeriodAttributes: priorPeriod ? priorPeriod.attributes : null,
+                mpdType: mpdAttributes.type
+            });
+            periods.push({
+                node,
+                attributes
+            });
+        });
+        return {
+            locations: mpdAttributes.locations,
+            representationInfo: flatten(periods.map(toAdaptationSets(mpdAttributes, mpdBaseUrls)))
+        };
+    };
+    const stringToMpdXml = manifestString => {
+        if (manifestString === '') {
+            throw new Error(errors.DASH_EMPTY_MANIFEST);
+        }
+        const parser = new DOMParser();
+        let xml;
+        let mpd;
+        try {
+            xml = parser.parseFromString(manifestString, 'application/xml');
+            mpd = xml && xml.documentElement.tagName === 'MPD' ? xml.documentElement : null;
+        } catch (e) {// ie 11 throwsw on invalid xml
+        }
+        if (!mpd || mpd && mpd.getElementsByTagName('parsererror').length > 0) {
+            throw new Error(errors.DASH_INVALID_XML);
+        }
+        return mpd;
+    };
+
+    /**
+     * Parses the manifest for a UTCTiming node, returning the nodes attributes if found
+     *
+     * @param {string} mpd
+     *        XML string of the MPD manifest
+     * @return {Object|null}
+     *         Attributes of UTCTiming node specified in the manifest. Null if none found
+     */
+
+    const parseUTCTimingScheme = mpd => {
+        const UTCTimingNode = findChildren(mpd, 'UTCTiming')[0];
+        if (!UTCTimingNode) {
+            return null;
+        }
+        const attributes = parseAttributes(UTCTimingNode);
+        switch (attributes.schemeIdUri) {
+            case 'urn:mpeg:dash:utc:http-head:2014':
+            case 'urn:mpeg:dash:utc:http-head:2012':
+                attributes.method = 'HEAD';
+                break;
+            case 'urn:mpeg:dash:utc:http-xsdate:2014':
+            case 'urn:mpeg:dash:utc:http-iso:2014':
+            case 'urn:mpeg:dash:utc:http-xsdate:2012':
+            case 'urn:mpeg:dash:utc:http-iso:2012':
+                attributes.method = 'GET';
+                break;
+            case 'urn:mpeg:dash:utc:direct:2014':
+            case 'urn:mpeg:dash:utc:direct:2012':
+                attributes.method = 'DIRECT';
+                attributes.value = Date.parse(attributes.value);
+                break;
+            case 'urn:mpeg:dash:utc:http-ntp:2014':
+            case 'urn:mpeg:dash:utc:ntp:2014':
+            case 'urn:mpeg:dash:utc:sntp:2014':
+            default:
+                throw new Error(errors.UNSUPPORTED_UTC_TIMING_SCHEME);
+        }
+        return attributes;
+    };
+    /*
    * Given a DASH manifest string and options, parses the DASH manifest into an object in the
    * form outputed by m3u8-parser and accepted by videojs/http-streaming.
    *
@@ -39475,22142 +35898,2951 @@
    * @return {Object} the manifest object
    */
 
-  var parse = function parse(manifestString, options) {
-    if (options === void 0) {
-      options = {};
-    }
-
-    var parsedManifestInfo = inheritAttributes(stringToMpdXml(manifestString), options);
-    var playlists = toPlaylists(parsedManifestInfo.representationInfo);
-    return toM3u8({
-      dashPlaylists: playlists,
-      locations: parsedManifestInfo.locations,
-      sidxMapping: options.sidxMapping,
-      previousManifest: options.previousManifest
-    });
-  };
-  /**
-   * Parses the manifest for a UTCTiming node, returning the nodes attributes if found
-   *
-   * @param {string} manifestString
-   *        XML string of the MPD manifest
-   * @return {Object|null}
-   *         Attributes of UTCTiming node specified in the manifest. Null if none found
-   */
-
-
-  var parseUTCTiming = function parseUTCTiming(manifestString) {
-    return parseUTCTimingScheme(stringToMpdXml(manifestString));
-  };
-
-  var MAX_UINT32 = Math.pow(2, 32);
-
-  var getUint64$1 = function getUint64(uint8) {
-    var dv = new DataView(uint8.buffer, uint8.byteOffset, uint8.byteLength);
-    var value;
-
-    if (dv.getBigUint64) {
-      value = dv.getBigUint64(0);
-
-      if (value < Number.MAX_SAFE_INTEGER) {
-        return Number(value);
-      }
-
-      return value;
-    }
-
-    return dv.getUint32(0) * MAX_UINT32 + dv.getUint32(4);
-  };
-
-  var numbers = {
-    getUint64: getUint64$1,
-    MAX_UINT32: MAX_UINT32
-  };
-
-  var getUint64 = numbers.getUint64;
-
-  var parseSidx = function parseSidx(data) {
-    var view = new DataView(data.buffer, data.byteOffset, data.byteLength),
-        result = {
-      version: data[0],
-      flags: new Uint8Array(data.subarray(1, 4)),
-      references: [],
-      referenceId: view.getUint32(4),
-      timescale: view.getUint32(8)
-    },
-        i = 12;
-
-    if (result.version === 0) {
-      result.earliestPresentationTime = view.getUint32(i);
-      result.firstOffset = view.getUint32(i + 4);
-      i += 8;
-    } else {
-      // read 64 bits
-      result.earliestPresentationTime = getUint64(data.subarray(i));
-      result.firstOffset = getUint64(data.subarray(i + 8));
-      i += 16;
-    }
-
-    i += 2; // reserved
-
-    var referenceCount = view.getUint16(i);
-    i += 2; // start of references
-
-    for (; referenceCount > 0; i += 12, referenceCount--) {
-      result.references.push({
-        referenceType: (data[i] & 0x80) >>> 7,
-        referencedSize: view.getUint32(i) & 0x7FFFFFFF,
-        subsegmentDuration: view.getUint32(i + 4),
-        startsWithSap: !!(data[i + 8] & 0x80),
-        sapType: (data[i + 8] & 0x70) >>> 4,
-        sapDeltaTime: view.getUint32(i + 8) & 0x0FFFFFFF
-      });
-    }
-
-    return result;
-  };
-
-  var parseSidx_1 = parseSidx;
-
-  var ID3 = toUint8([0x49, 0x44, 0x33]);
-  var getId3Size = function getId3Size(bytes, offset) {
-    if (offset === void 0) {
-      offset = 0;
-    }
-
-    bytes = toUint8(bytes);
-    var flags = bytes[offset + 5];
-    var returnSize = bytes[offset + 6] << 21 | bytes[offset + 7] << 14 | bytes[offset + 8] << 7 | bytes[offset + 9];
-    var footerPresent = (flags & 16) >> 4;
-
-    if (footerPresent) {
-      return returnSize + 20;
-    }
-
-    return returnSize + 10;
-  };
-  var getId3Offset = function getId3Offset(bytes, offset) {
-    if (offset === void 0) {
-      offset = 0;
-    }
-
-    bytes = toUint8(bytes);
-
-    if (bytes.length - offset < 10 || !bytesMatch(bytes, ID3, {
-      offset: offset
-    })) {
-      return offset;
-    }
-
-    offset += getId3Size(bytes, offset); // recursive check for id3 tags as some files
-    // have multiple ID3 tag sections even though
-    // they should not.
-
-    return getId3Offset(bytes, offset);
-  };
-
-  var normalizePath$1 = function normalizePath(path) {
-    if (typeof path === 'string') {
-      return stringToBytes(path);
-    }
-
-    if (typeof path === 'number') {
-      return path;
-    }
-
-    return path;
-  };
-
-  var normalizePaths$1 = function normalizePaths(paths) {
-    if (!Array.isArray(paths)) {
-      return [normalizePath$1(paths)];
-    }
-
-    return paths.map(function (p) {
-      return normalizePath$1(p);
-    });
-  };
-  /**
-   * find any number of boxes by name given a path to it in an iso bmff
-   * such as mp4.
-   *
-   * @param {TypedArray} bytes
-   *        bytes for the iso bmff to search for boxes in
-   *
-   * @param {Uint8Array[]|string[]|string|Uint8Array} name
-   *        An array of paths or a single path representing the name
-   *        of boxes to search through in bytes. Paths may be
-   *        uint8 (character codes) or strings.
-   *
-   * @param {boolean} [complete=false]
-   *        Should we search only for complete boxes on the final path.
-   *        This is very useful when you do not want to get back partial boxes
-   *        in the case of streaming files.
-   *
-   * @return {Uint8Array[]}
-   *         An array of the end paths that we found.
-   */
-
-  var findBox = function findBox(bytes, paths, complete) {
-    if (complete === void 0) {
-      complete = false;
-    }
-
-    paths = normalizePaths$1(paths);
-    bytes = toUint8(bytes);
-    var results = [];
-
-    if (!paths.length) {
-      // short-circuit the search for empty paths
-      return results;
-    }
-
-    var i = 0;
-
-    while (i < bytes.length) {
-      var size = (bytes[i] << 24 | bytes[i + 1] << 16 | bytes[i + 2] << 8 | bytes[i + 3]) >>> 0;
-      var type = bytes.subarray(i + 4, i + 8); // invalid box format.
-
-      if (size === 0) {
-        break;
-      }
-
-      var end = i + size;
-
-      if (end > bytes.length) {
-        // this box is bigger than the number of bytes we have
-        // and complete is set, we cannot find any more boxes.
-        if (complete) {
-          break;
-        }
-
-        end = bytes.length;
-      }
-
-      var data = bytes.subarray(i + 8, end);
-
-      if (bytesMatch(type, paths[0])) {
-        if (paths.length === 1) {
-          // this is the end of the path and we've found the box we were
-          // looking for
-          results.push(data);
-        } else {
-          // recursively search for the next box along the path
-          results.push.apply(results, findBox(data, paths.slice(1), complete));
-        }
-      }
-
-      i = end;
-    } // we've finished searching all of bytes
-
-
-    return results;
-  };
-
-  // https://matroska-org.github.io/libebml/specs.html
-  // https://www.matroska.org/technical/elements.html
-  // https://www.webmproject.org/docs/container/
-
-  var EBML_TAGS = {
-    EBML: toUint8([0x1A, 0x45, 0xDF, 0xA3]),
-    DocType: toUint8([0x42, 0x82]),
-    Segment: toUint8([0x18, 0x53, 0x80, 0x67]),
-    SegmentInfo: toUint8([0x15, 0x49, 0xA9, 0x66]),
-    Tracks: toUint8([0x16, 0x54, 0xAE, 0x6B]),
-    Track: toUint8([0xAE]),
-    TrackNumber: toUint8([0xd7]),
-    DefaultDuration: toUint8([0x23, 0xe3, 0x83]),
-    TrackEntry: toUint8([0xAE]),
-    TrackType: toUint8([0x83]),
-    FlagDefault: toUint8([0x88]),
-    CodecID: toUint8([0x86]),
-    CodecPrivate: toUint8([0x63, 0xA2]),
-    VideoTrack: toUint8([0xe0]),
-    AudioTrack: toUint8([0xe1]),
-    // Not used yet, but will be used for live webm/mkv
-    // see https://www.matroska.org/technical/basics.html#block-structure
-    // see https://www.matroska.org/technical/basics.html#simpleblock-structure
-    Cluster: toUint8([0x1F, 0x43, 0xB6, 0x75]),
-    Timestamp: toUint8([0xE7]),
-    TimestampScale: toUint8([0x2A, 0xD7, 0xB1]),
-    BlockGroup: toUint8([0xA0]),
-    BlockDuration: toUint8([0x9B]),
-    Block: toUint8([0xA1]),
-    SimpleBlock: toUint8([0xA3])
-  };
-  /**
-   * This is a simple table to determine the length
-   * of things in ebml. The length is one based (starts at 1,
-   * rather than zero) and for every zero bit before a one bit
-   * we add one to length. We also need this table because in some
-   * case we have to xor all the length bits from another value.
-   */
-
-  var LENGTH_TABLE = [128, 64, 32, 16, 8, 4, 2, 1];
-
-  var getLength = function getLength(_byte) {
-    var len = 1;
-
-    for (var i = 0; i < LENGTH_TABLE.length; i++) {
-      if (_byte & LENGTH_TABLE[i]) {
-        break;
-      }
-
-      len++;
-    }
-
-    return len;
-  }; // length in ebml is stored in the first 4 to 8 bits
-  // of the first byte. 4 for the id length and 8 for the
-  // data size length. Length is measured by converting the number to binary
-  // then 1 + the number of zeros before a 1 is encountered starting
-  // from the left.
-
-
-  var getvint = function getvint(bytes, offset, removeLength, signed) {
-    if (removeLength === void 0) {
-      removeLength = true;
-    }
-
-    if (signed === void 0) {
-      signed = false;
-    }
-
-    var length = getLength(bytes[offset]);
-    var valueBytes = bytes.subarray(offset, offset + length); // NOTE that we do **not** subarray here because we need to copy these bytes
-    // as they will be modified below to remove the dataSizeLen bits and we do not
-    // want to modify the original data. normally we could just call slice on
-    // uint8array but ie 11 does not support that...
-
-    if (removeLength) {
-      valueBytes = Array.prototype.slice.call(bytes, offset, offset + length);
-      valueBytes[0] ^= LENGTH_TABLE[length - 1];
-    }
-
-    return {
-      length: length,
-      value: bytesToNumber(valueBytes, {
-        signed: signed
-      }),
-      bytes: valueBytes
-    };
-  };
-
-  var normalizePath = function normalizePath(path) {
-    if (typeof path === 'string') {
-      return path.match(/.{1,2}/g).map(function (p) {
-        return normalizePath(p);
-      });
-    }
-
-    if (typeof path === 'number') {
-      return numberToBytes(path);
-    }
-
-    return path;
-  };
-
-  var normalizePaths = function normalizePaths(paths) {
-    if (!Array.isArray(paths)) {
-      return [normalizePath(paths)];
-    }
-
-    return paths.map(function (p) {
-      return normalizePath(p);
-    });
-  };
-
-  var getInfinityDataSize = function getInfinityDataSize(id, bytes, offset) {
-    if (offset >= bytes.length) {
-      return bytes.length;
-    }
-
-    var innerid = getvint(bytes, offset, false);
-
-    if (bytesMatch(id.bytes, innerid.bytes)) {
-      return offset;
-    }
-
-    var dataHeader = getvint(bytes, offset + innerid.length);
-    return getInfinityDataSize(id, bytes, offset + dataHeader.length + dataHeader.value + innerid.length);
-  };
-  /**
-   * Notes on the EBLM format.
-   *
-   * EBLM uses "vints" tags. Every vint tag contains
-   * two parts
-   *
-   * 1. The length from the first byte. You get this by
-   *    converting the byte to binary and counting the zeros
-   *    before a 1. Then you add 1 to that. Examples
-   *    00011111 = length 4 because there are 3 zeros before a 1.
-   *    00100000 = length 3 because there are 2 zeros before a 1.
-   *    00000011 = length 7 because there are 6 zeros before a 1.
-   *
-   * 2. The bits used for length are removed from the first byte
-   *    Then all the bytes are merged into a value. NOTE: this
-   *    is not the case for id ebml tags as there id includes
-   *    length bits.
-   *
-   */
-
-
-  var findEbml = function findEbml(bytes, paths) {
-    paths = normalizePaths(paths);
-    bytes = toUint8(bytes);
-    var results = [];
-
-    if (!paths.length) {
-      return results;
-    }
-
-    var i = 0;
-
-    while (i < bytes.length) {
-      var id = getvint(bytes, i, false);
-      var dataHeader = getvint(bytes, i + id.length);
-      var dataStart = i + id.length + dataHeader.length; // dataSize is unknown or this is a live stream
-
-      if (dataHeader.value === 0x7f) {
-        dataHeader.value = getInfinityDataSize(id, bytes, dataStart);
-
-        if (dataHeader.value !== bytes.length) {
-          dataHeader.value -= dataStart;
-        }
-      }
-
-      var dataEnd = dataStart + dataHeader.value > bytes.length ? bytes.length : dataStart + dataHeader.value;
-      var data = bytes.subarray(dataStart, dataEnd);
-
-      if (bytesMatch(paths[0], id.bytes)) {
-        if (paths.length === 1) {
-          // this is the end of the paths and we've found the tag we were
-          // looking for
-          results.push(data);
-        } else {
-          // recursively search for the next tag inside of the data
-          // of this one
-          results = results.concat(findEbml(data, paths.slice(1)));
-        }
-      }
-
-      var totalLength = id.length + dataHeader.length + data.length; // move past this tag entirely, we are not looking for it
-
-      i += totalLength;
-    }
-
-    return results;
-  }; // see https://www.matroska.org/technical/basics.html#block-structure
-
-  var NAL_TYPE_ONE = toUint8([0x00, 0x00, 0x00, 0x01]);
-  var NAL_TYPE_TWO = toUint8([0x00, 0x00, 0x01]);
-  var EMULATION_PREVENTION = toUint8([0x00, 0x00, 0x03]);
-  /**
-   * Expunge any "Emulation Prevention" bytes from a "Raw Byte
-   * Sequence Payload"
-   *
-   * @param data {Uint8Array} the bytes of a RBSP from a NAL
-   * unit
-   * @return {Uint8Array} the RBSP without any Emulation
-   * Prevention Bytes
-   */
-
-  var discardEmulationPreventionBytes = function discardEmulationPreventionBytes(bytes) {
-    var positions = [];
-    var i = 1; // Find all `Emulation Prevention Bytes`
-
-    while (i < bytes.length - 2) {
-      if (bytesMatch(bytes.subarray(i, i + 3), EMULATION_PREVENTION)) {
-        positions.push(i + 2);
-        i++;
-      }
-
-      i++;
-    } // If no Emulation Prevention Bytes were found just return the original
-    // array
-
-
-    if (positions.length === 0) {
-      return bytes;
-    } // Create a new array to hold the NAL unit data
-
-
-    var newLength = bytes.length - positions.length;
-    var newData = new Uint8Array(newLength);
-    var sourceIndex = 0;
-
-    for (i = 0; i < newLength; sourceIndex++, i++) {
-      if (sourceIndex === positions[0]) {
-        // Skip this byte
-        sourceIndex++; // Remove this position index
-
-        positions.shift();
-      }
-
-      newData[i] = bytes[sourceIndex];
-    }
-
-    return newData;
-  };
-  var findNal = function findNal(bytes, dataType, types, nalLimit) {
-    if (nalLimit === void 0) {
-      nalLimit = Infinity;
-    }
-
-    bytes = toUint8(bytes);
-    types = [].concat(types);
-    var i = 0;
-    var nalStart;
-    var nalsFound = 0; // keep searching until:
-    // we reach the end of bytes
-    // we reach the maximum number of nals they want to seach
-    // NOTE: that we disregard nalLimit when we have found the start
-    // of the nal we want so that we can find the end of the nal we want.
-
-    while (i < bytes.length && (nalsFound < nalLimit || nalStart)) {
-      var nalOffset = void 0;
-
-      if (bytesMatch(bytes.subarray(i), NAL_TYPE_ONE)) {
-        nalOffset = 4;
-      } else if (bytesMatch(bytes.subarray(i), NAL_TYPE_TWO)) {
-        nalOffset = 3;
-      } // we are unsynced,
-      // find the next nal unit
-
-
-      if (!nalOffset) {
-        i++;
-        continue;
-      }
-
-      nalsFound++;
-
-      if (nalStart) {
-        return discardEmulationPreventionBytes(bytes.subarray(nalStart, i));
-      }
-
-      var nalType = void 0;
-
-      if (dataType === 'h264') {
-        nalType = bytes[i + nalOffset] & 0x1f;
-      } else if (dataType === 'h265') {
-        nalType = bytes[i + nalOffset] >> 1 & 0x3f;
-      }
-
-      if (types.indexOf(nalType) !== -1) {
-        nalStart = i + nalOffset;
-      } // nal header is 1 length for h264, and 2 for h265
-
-
-      i += nalOffset + (dataType === 'h264' ? 1 : 2);
-    }
-
-    return bytes.subarray(0, 0);
-  };
-  var findH264Nal = function findH264Nal(bytes, type, nalLimit) {
-    return findNal(bytes, 'h264', type, nalLimit);
-  };
-  var findH265Nal = function findH265Nal(bytes, type, nalLimit) {
-    return findNal(bytes, 'h265', type, nalLimit);
-  };
-
-  var CONSTANTS = {
-    // "webm" string literal in hex
-    'webm': toUint8([0x77, 0x65, 0x62, 0x6d]),
-    // "matroska" string literal in hex
-    'matroska': toUint8([0x6d, 0x61, 0x74, 0x72, 0x6f, 0x73, 0x6b, 0x61]),
-    // "fLaC" string literal in hex
-    'flac': toUint8([0x66, 0x4c, 0x61, 0x43]),
-    // "OggS" string literal in hex
-    'ogg': toUint8([0x4f, 0x67, 0x67, 0x53]),
-    // ac-3 sync byte, also works for ec-3 as that is simply a codec
-    // of ac-3
-    'ac3': toUint8([0x0b, 0x77]),
-    // "RIFF" string literal in hex used for wav and avi
-    'riff': toUint8([0x52, 0x49, 0x46, 0x46]),
-    // "AVI" string literal in hex
-    'avi': toUint8([0x41, 0x56, 0x49]),
-    // "WAVE" string literal in hex
-    'wav': toUint8([0x57, 0x41, 0x56, 0x45]),
-    // "ftyp3g" string literal in hex
-    '3gp': toUint8([0x66, 0x74, 0x79, 0x70, 0x33, 0x67]),
-    // "ftyp" string literal in hex
-    'mp4': toUint8([0x66, 0x74, 0x79, 0x70]),
-    // "styp" string literal in hex
-    'fmp4': toUint8([0x73, 0x74, 0x79, 0x70]),
-    // "ftypqt" string literal in hex
-    'mov': toUint8([0x66, 0x74, 0x79, 0x70, 0x71, 0x74]),
-    // moov string literal in hex
-    'moov': toUint8([0x6D, 0x6F, 0x6F, 0x76]),
-    // moof string literal in hex
-    'moof': toUint8([0x6D, 0x6F, 0x6F, 0x66])
-  };
-  var _isLikely = {
-    aac: function aac(bytes) {
-      var offset = getId3Offset(bytes);
-      return bytesMatch(bytes, [0xFF, 0x10], {
-        offset: offset,
-        mask: [0xFF, 0x16]
-      });
-    },
-    mp3: function mp3(bytes) {
-      var offset = getId3Offset(bytes);
-      return bytesMatch(bytes, [0xFF, 0x02], {
-        offset: offset,
-        mask: [0xFF, 0x06]
-      });
-    },
-    webm: function webm(bytes) {
-      var docType = findEbml(bytes, [EBML_TAGS.EBML, EBML_TAGS.DocType])[0]; // check if DocType EBML tag is webm
-
-      return bytesMatch(docType, CONSTANTS.webm);
-    },
-    mkv: function mkv(bytes) {
-      var docType = findEbml(bytes, [EBML_TAGS.EBML, EBML_TAGS.DocType])[0]; // check if DocType EBML tag is matroska
-
-      return bytesMatch(docType, CONSTANTS.matroska);
-    },
-    mp4: function mp4(bytes) {
-      // if this file is another base media file format, it is not mp4
-      if (_isLikely['3gp'](bytes) || _isLikely.mov(bytes)) {
-        return false;
-      } // if this file starts with a ftyp or styp box its mp4
-
-
-      if (bytesMatch(bytes, CONSTANTS.mp4, {
-        offset: 4
-      }) || bytesMatch(bytes, CONSTANTS.fmp4, {
-        offset: 4
-      })) {
-        return true;
-      } // if this file starts with a moof/moov box its mp4
-
-
-      if (bytesMatch(bytes, CONSTANTS.moof, {
-        offset: 4
-      }) || bytesMatch(bytes, CONSTANTS.moov, {
-        offset: 4
-      })) {
-        return true;
-      }
-    },
-    mov: function mov(bytes) {
-      return bytesMatch(bytes, CONSTANTS.mov, {
-        offset: 4
-      });
-    },
-    '3gp': function gp(bytes) {
-      return bytesMatch(bytes, CONSTANTS['3gp'], {
-        offset: 4
-      });
-    },
-    ac3: function ac3(bytes) {
-      var offset = getId3Offset(bytes);
-      return bytesMatch(bytes, CONSTANTS.ac3, {
-        offset: offset
-      });
-    },
-    ts: function ts(bytes) {
-      if (bytes.length < 189 && bytes.length >= 1) {
-        return bytes[0] === 0x47;
-      }
-
-      var i = 0; // check the first 376 bytes for two matching sync bytes
-
-      while (i + 188 < bytes.length && i < 188) {
-        if (bytes[i] === 0x47 && bytes[i + 188] === 0x47) {
-          return true;
-        }
-
-        i += 1;
-      }
-
-      return false;
-    },
-    flac: function flac(bytes) {
-      var offset = getId3Offset(bytes);
-      return bytesMatch(bytes, CONSTANTS.flac, {
-        offset: offset
-      });
-    },
-    ogg: function ogg(bytes) {
-      return bytesMatch(bytes, CONSTANTS.ogg);
-    },
-    avi: function avi(bytes) {
-      return bytesMatch(bytes, CONSTANTS.riff) && bytesMatch(bytes, CONSTANTS.avi, {
-        offset: 8
-      });
-    },
-    wav: function wav(bytes) {
-      return bytesMatch(bytes, CONSTANTS.riff) && bytesMatch(bytes, CONSTANTS.wav, {
-        offset: 8
-      });
-    },
-    'h264': function h264(bytes) {
-      // find seq_parameter_set_rbsp
-      return findH264Nal(bytes, 7, 3).length;
-    },
-    'h265': function h265(bytes) {
-      // find video_parameter_set_rbsp or seq_parameter_set_rbsp
-      return findH265Nal(bytes, [32, 33], 3).length;
-    }
-  }; // get all the isLikely functions
-  // but make sure 'ts' is above h264 and h265
-  // but below everything else as it is the least specific
-
-  var isLikelyTypes = Object.keys(_isLikely) // remove ts, h264, h265
-  .filter(function (t) {
-    return t !== 'ts' && t !== 'h264' && t !== 'h265';
-  }) // add it back to the bottom
-  .concat(['ts', 'h264', 'h265']); // make sure we are dealing with uint8 data.
-
-  isLikelyTypes.forEach(function (type) {
-    var isLikelyFn = _isLikely[type];
-
-    _isLikely[type] = function (bytes) {
-      return isLikelyFn(toUint8(bytes));
-    };
-  }); // export after wrapping
-
-  var isLikely = _isLikely; // A useful list of file signatures can be found here
-  // https://en.wikipedia.org/wiki/List_of_file_signatures
-
-  var detectContainerForBytes = function detectContainerForBytes(bytes) {
-    bytes = toUint8(bytes);
-
-    for (var i = 0; i < isLikelyTypes.length; i++) {
-      var type = isLikelyTypes[i];
-
-      if (isLikely[type](bytes)) {
-        return type;
-      }
-    }
-
-    return '';
-  }; // fmp4 is not a container
-
-  var isLikelyFmp4MediaSegment = function isLikelyFmp4MediaSegment(bytes) {
-    return findBox(bytes, ['moof']).length > 0;
-  };
-
-  /**
-   * mux.js
-   *
-   * Copyright (c) Brightcove
-   * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE
-   */
-  var ONE_SECOND_IN_TS = 90000,
-      // 90kHz clock
-  secondsToVideoTs,
-      secondsToAudioTs,
-      videoTsToSeconds,
-      audioTsToSeconds,
-      audioTsToVideoTs,
-      videoTsToAudioTs,
-      metadataTsToSeconds;
-
-  secondsToVideoTs = function secondsToVideoTs(seconds) {
-    return seconds * ONE_SECOND_IN_TS;
-  };
-
-  secondsToAudioTs = function secondsToAudioTs(seconds, sampleRate) {
-    return seconds * sampleRate;
-  };
-
-  videoTsToSeconds = function videoTsToSeconds(timestamp) {
-    return timestamp / ONE_SECOND_IN_TS;
-  };
-
-  audioTsToSeconds = function audioTsToSeconds(timestamp, sampleRate) {
-    return timestamp / sampleRate;
-  };
-
-  audioTsToVideoTs = function audioTsToVideoTs(timestamp, sampleRate) {
-    return secondsToVideoTs(audioTsToSeconds(timestamp, sampleRate));
-  };
-
-  videoTsToAudioTs = function videoTsToAudioTs(timestamp, sampleRate) {
-    return secondsToAudioTs(videoTsToSeconds(timestamp), sampleRate);
-  };
-  /**
-   * Adjust ID3 tag or caption timing information by the timeline pts values
-   * (if keepOriginalTimestamps is false) and convert to seconds
-   */
-
-
-  metadataTsToSeconds = function metadataTsToSeconds(timestamp, timelineStartPts, keepOriginalTimestamps) {
-    return videoTsToSeconds(keepOriginalTimestamps ? timestamp : timestamp - timelineStartPts);
-  };
-
-  var clock = {
-    ONE_SECOND_IN_TS: ONE_SECOND_IN_TS,
-    secondsToVideoTs: secondsToVideoTs,
-    secondsToAudioTs: secondsToAudioTs,
-    videoTsToSeconds: videoTsToSeconds,
-    audioTsToSeconds: audioTsToSeconds,
-    audioTsToVideoTs: audioTsToVideoTs,
-    videoTsToAudioTs: videoTsToAudioTs,
-    metadataTsToSeconds: metadataTsToSeconds
-  };
-  var clock_1 = clock.ONE_SECOND_IN_TS;
-
-  /*! @name @videojs/http-streaming @version 2.14.3 @license Apache-2.0 */
-  /**
-   * @file resolve-url.js - Handling how URLs are resolved and manipulated
-   */
-
-  var resolveUrl = resolveUrl$2;
-  /**
-   * Checks whether xhr request was redirected and returns correct url depending
-   * on `handleManifestRedirects` option
-   *
-   * @api private
-   *
-   * @param  {string} url - an url being requested
-   * @param  {XMLHttpRequest} req - xhr request result
-   *
-   * @return {string}
-   */
-
-  var resolveManifestRedirect = function resolveManifestRedirect(handleManifestRedirect, url, req) {
-    // To understand how the responseURL below is set and generated:
-    // - https://fetch.spec.whatwg.org/#concept-response-url
-    // - https://fetch.spec.whatwg.org/#atomic-http-redirect-handling
-    if (handleManifestRedirect && req && req.responseURL && url !== req.responseURL) {
-      return req.responseURL;
-    }
-
-    return url;
-  };
-
-  var logger = function logger(source) {
-    if (videojs.log.debug) {
-      return videojs.log.debug.bind(videojs, 'VHS:', source + " >");
-    }
-
-    return function () {};
-  };
-  /**
-   * ranges
-   *
-   * Utilities for working with TimeRanges.
-   *
-   */
-
-
-  var TIME_FUDGE_FACTOR = 1 / 30; // Comparisons between time values such as current time and the end of the buffered range
-  // can be misleading because of precision differences or when the current media has poorly
-  // aligned audio and video, which can cause values to be slightly off from what you would
-  // expect. This value is what we consider to be safe to use in such comparisons to account
-  // for these scenarios.
-
-  var SAFE_TIME_DELTA = TIME_FUDGE_FACTOR * 3;
-
-  var filterRanges = function filterRanges(timeRanges, predicate) {
-    var results = [];
-    var i;
-
-    if (timeRanges && timeRanges.length) {
-      // Search for ranges that match the predicate
-      for (i = 0; i < timeRanges.length; i++) {
-        if (predicate(timeRanges.start(i), timeRanges.end(i))) {
-          results.push([timeRanges.start(i), timeRanges.end(i)]);
-        }
-      }
-    }
-
-    return videojs.createTimeRanges(results);
-  };
-  /**
-   * Attempts to find the buffered TimeRange that contains the specified
-   * time.
-   *
-   * @param {TimeRanges} buffered - the TimeRanges object to query
-   * @param {number} time  - the time to filter on.
-   * @return {TimeRanges} a new TimeRanges object
-   */
-
-
-  var findRange = function findRange(buffered, time) {
-    return filterRanges(buffered, function (start, end) {
-      return start - SAFE_TIME_DELTA <= time && end + SAFE_TIME_DELTA >= time;
-    });
-  };
-  /**
-   * Returns the TimeRanges that begin later than the specified time.
-   *
-   * @param {TimeRanges} timeRanges - the TimeRanges object to query
-   * @param {number} time - the time to filter on.
-   * @return {TimeRanges} a new TimeRanges object.
-   */
-
-
-  var findNextRange = function findNextRange(timeRanges, time) {
-    return filterRanges(timeRanges, function (start) {
-      return start - TIME_FUDGE_FACTOR >= time;
-    });
-  };
-  /**
-   * Returns gaps within a list of TimeRanges
-   *
-   * @param {TimeRanges} buffered - the TimeRanges object
-   * @return {TimeRanges} a TimeRanges object of gaps
-   */
-
-
-  var findGaps = function findGaps(buffered) {
-    if (buffered.length < 2) {
-      return videojs.createTimeRanges();
-    }
-
-    var ranges = [];
-
-    for (var i = 1; i < buffered.length; i++) {
-      var start = buffered.end(i - 1);
-      var end = buffered.start(i);
-      ranges.push([start, end]);
-    }
-
-    return videojs.createTimeRanges(ranges);
-  };
-  /**
-   * Calculate the intersection of two TimeRanges
-   *
-   * @param {TimeRanges} bufferA
-   * @param {TimeRanges} bufferB
-   * @return {TimeRanges} The interesection of `bufferA` with `bufferB`
-   */
-
-
-  var bufferIntersection = function bufferIntersection(bufferA, bufferB) {
-    var start = null;
-    var end = null;
-    var arity = 0;
-    var extents = [];
-    var ranges = [];
-
-    if (!bufferA || !bufferA.length || !bufferB || !bufferB.length) {
-      return videojs.createTimeRange();
-    } // Handle the case where we have both buffers and create an
-    // intersection of the two
-
-
-    var count = bufferA.length; // A) Gather up all start and end times
-
-    while (count--) {
-      extents.push({
-        time: bufferA.start(count),
-        type: 'start'
-      });
-      extents.push({
-        time: bufferA.end(count),
-        type: 'end'
-      });
-    }
-
-    count = bufferB.length;
-
-    while (count--) {
-      extents.push({
-        time: bufferB.start(count),
-        type: 'start'
-      });
-      extents.push({
-        time: bufferB.end(count),
-        type: 'end'
-      });
-    } // B) Sort them by time
-
-
-    extents.sort(function (a, b) {
-      return a.time - b.time;
-    }); // C) Go along one by one incrementing arity for start and decrementing
-    //    arity for ends
-
-    for (count = 0; count < extents.length; count++) {
-      if (extents[count].type === 'start') {
-        arity++; // D) If arity is ever incremented to 2 we are entering an
-        //    overlapping range
-
-        if (arity === 2) {
-          start = extents[count].time;
-        }
-      } else if (extents[count].type === 'end') {
-        arity--; // E) If arity is ever decremented to 1 we leaving an
-        //    overlapping range
-
-        if (arity === 1) {
-          end = extents[count].time;
-        }
-      } // F) Record overlapping ranges
-
-
-      if (start !== null && end !== null) {
-        ranges.push([start, end]);
-        start = null;
-        end = null;
-      }
-    }
-
-    return videojs.createTimeRanges(ranges);
-  };
-  /**
-   * Gets a human readable string for a TimeRange
-   *
-   * @param {TimeRange} range
-   * @return {string} a human readable string
-   */
-
-
-  var printableRange = function printableRange(range) {
-    var strArr = [];
-
-    if (!range || !range.length) {
-      return '';
-    }
-
-    for (var i = 0; i < range.length; i++) {
-      strArr.push(range.start(i) + ' => ' + range.end(i));
-    }
-
-    return strArr.join(', ');
-  };
-  /**
-   * Calculates the amount of time left in seconds until the player hits the end of the
-   * buffer and causes a rebuffer
-   *
-   * @param {TimeRange} buffered
-   *        The state of the buffer
-   * @param {Numnber} currentTime
-   *        The current time of the player
-   * @param {number} playbackRate
-   *        The current playback rate of the player. Defaults to 1.
-   * @return {number}
-   *         Time until the player has to start rebuffering in seconds.
-   * @function timeUntilRebuffer
-   */
-
-
-  var timeUntilRebuffer = function timeUntilRebuffer(buffered, currentTime, playbackRate) {
-    if (playbackRate === void 0) {
-      playbackRate = 1;
-    }
-
-    var bufferedEnd = buffered.length ? buffered.end(buffered.length - 1) : 0;
-    return (bufferedEnd - currentTime) / playbackRate;
-  };
-  /**
-   * Converts a TimeRanges object into an array representation
-   *
-   * @param {TimeRanges} timeRanges
-   * @return {Array}
-   */
-
-
-  var timeRangesToArray = function timeRangesToArray(timeRanges) {
-    var timeRangesList = [];
-
-    for (var i = 0; i < timeRanges.length; i++) {
-      timeRangesList.push({
-        start: timeRanges.start(i),
-        end: timeRanges.end(i)
-      });
-    }
-
-    return timeRangesList;
-  };
-  /**
-   * Determines if two time range objects are different.
-   *
-   * @param {TimeRange} a
-   *        the first time range object to check
-   *
-   * @param {TimeRange} b
-   *        the second time range object to check
-   *
-   * @return {Boolean}
-   *         Whether the time range objects differ
-   */
-
-
-  var isRangeDifferent = function isRangeDifferent(a, b) {
-    // same object
-    if (a === b) {
-      return false;
-    } // one or the other is undefined
-
-
-    if (!a && b || !b && a) {
-      return true;
-    } // length is different
-
-
-    if (a.length !== b.length) {
-      return true;
-    } // see if any start/end pair is different
-
-
-    for (var i = 0; i < a.length; i++) {
-      if (a.start(i) !== b.start(i) || a.end(i) !== b.end(i)) {
-        return true;
-      }
-    } // if the length and every pair is the same
-    // this is the same time range
-
-
-    return false;
-  };
-
-  var lastBufferedEnd = function lastBufferedEnd(a) {
-    if (!a || !a.length || !a.end) {
-      return;
-    }
-
-    return a.end(a.length - 1);
-  };
-  /**
-   * A utility function to add up the amount of time in a timeRange
-   * after a specified startTime.
-   * ie:[[0, 10], [20, 40], [50, 60]] with a startTime 0
-   *     would return 40 as there are 40s seconds after 0 in the timeRange
-   *
-   * @param {TimeRange} range
-   *        The range to check against
-   * @param {number} startTime
-   *        The time in the time range that you should start counting from
-   *
-   * @return {number}
-   *          The number of seconds in the buffer passed the specified time.
-   */
-
-
-  var timeAheadOf = function timeAheadOf(range, startTime) {
-    var time = 0;
-
-    if (!range || !range.length) {
-      return time;
-    }
-
-    for (var i = 0; i < range.length; i++) {
-      var start = range.start(i);
-      var end = range.end(i); // startTime is after this range entirely
-
-      if (startTime > end) {
-        continue;
-      } // startTime is within this range
-
-
-      if (startTime > start && startTime <= end) {
-        time += end - startTime;
-        continue;
-      } // startTime is before this range.
-
-
-      time += end - start;
-    }
-
-    return time;
-  };
-  /**
-   * @file playlist.js
-   *
-   * Playlist related utilities.
-   */
-
-
-  var createTimeRange = videojs.createTimeRange;
-  /**
-   * Get the duration of a segment, with special cases for
-   * llhls segments that do not have a duration yet.
-   *
-   * @param {Object} playlist
-   *        the playlist that the segment belongs to.
-   * @param {Object} segment
-   *        the segment to get a duration for.
-   *
-   * @return {number}
-   *          the segment duration
-   */
-
-  var segmentDurationWithParts = function segmentDurationWithParts(playlist, segment) {
-    // if this isn't a preload segment
-    // then we will have a segment duration that is accurate.
-    if (!segment.preload) {
-      return segment.duration;
-    } // otherwise we have to add up parts and preload hints
-    // to get an up to date duration.
-
-
-    var result = 0;
-    (segment.parts || []).forEach(function (p) {
-      result += p.duration;
-    }); // for preload hints we have to use partTargetDuration
-    // as they won't even have a duration yet.
-
-    (segment.preloadHints || []).forEach(function (p) {
-      if (p.type === 'PART') {
-        result += playlist.partTargetDuration;
-      }
-    });
-    return result;
-  };
-  /**
-   * A function to get a combined list of parts and segments with durations
-   * and indexes.
-   *
-   * @param {Playlist} playlist the playlist to get the list for.
-   *
-   * @return {Array} The part/segment list.
-   */
-
-
-  var getPartsAndSegments = function getPartsAndSegments(playlist) {
-    return (playlist.segments || []).reduce(function (acc, segment, si) {
-      if (segment.parts) {
-        segment.parts.forEach(function (part, pi) {
-          acc.push({
-            duration: part.duration,
-            segmentIndex: si,
-            partIndex: pi,
-            part: part,
-            segment: segment
-          });
+    const parse = (manifestString, options = {}) => {
+        const parsedManifestInfo = inheritAttributes(stringToMpdXml(manifestString), options);
+        const playlists = toPlaylists(parsedManifestInfo.representationInfo);
+        return toM3u8({
+            dashPlaylists: playlists,
+            locations: parsedManifestInfo.locations,
+            sidxMapping: options.sidxMapping,
+            previousManifest: options.previousManifest
         });
-      } else {
-        acc.push({
-          duration: segment.duration,
-          segmentIndex: si,
-          partIndex: null,
-          segment: segment,
-          part: null
-        });
-      }
-
-      return acc;
-    }, []);
-  };
-
-  var getLastParts = function getLastParts(media) {
-    var lastSegment = media.segments && media.segments.length && media.segments[media.segments.length - 1];
-    return lastSegment && lastSegment.parts || [];
-  };
-
-  var getKnownPartCount = function getKnownPartCount(_ref) {
-    var preloadSegment = _ref.preloadSegment;
-
-    if (!preloadSegment) {
-      return;
-    }
-
-    var parts = preloadSegment.parts,
-        preloadHints = preloadSegment.preloadHints;
-    var partCount = (preloadHints || []).reduce(function (count, hint) {
-      return count + (hint.type === 'PART' ? 1 : 0);
-    }, 0);
-    partCount += parts && parts.length ? parts.length : 0;
-    return partCount;
-  };
-  /**
-   * Get the number of seconds to delay from the end of a
-   * live playlist.
-   *
-   * @param {Playlist} master the master playlist
-   * @param {Playlist} media the media playlist
-   * @return {number} the hold back in seconds.
-   */
-
-
-  var liveEdgeDelay = function liveEdgeDelay(master, media) {
-    if (media.endList) {
-      return 0;
-    } // dash suggestedPresentationDelay trumps everything
-
-
-    if (master && master.suggestedPresentationDelay) {
-      return master.suggestedPresentationDelay;
-    }
-
-    var hasParts = getLastParts(media).length > 0; // look for "part" delays from ll-hls first
-
-    if (hasParts && media.serverControl && media.serverControl.partHoldBack) {
-      return media.serverControl.partHoldBack;
-    } else if (hasParts && media.partTargetDuration) {
-      return media.partTargetDuration * 3; // finally look for full segment delays
-    } else if (media.serverControl && media.serverControl.holdBack) {
-      return media.serverControl.holdBack;
-    } else if (media.targetDuration) {
-      return media.targetDuration * 3;
-    }
-
-    return 0;
-  };
-  /**
-   * walk backward until we find a duration we can use
-   * or return a failure
-   *
-   * @param {Playlist} playlist the playlist to walk through
-   * @param {Number} endSequence the mediaSequence to stop walking on
-   */
-
-
-  var backwardDuration = function backwardDuration(playlist, endSequence) {
-    var result = 0;
-    var i = endSequence - playlist.mediaSequence; // if a start time is available for segment immediately following
-    // the interval, use it
-
-    var segment = playlist.segments[i]; // Walk backward until we find the latest segment with timeline
-    // information that is earlier than endSequence
-
-    if (segment) {
-      if (typeof segment.start !== 'undefined') {
-        return {
-          result: segment.start,
-          precise: true
-        };
-      }
-
-      if (typeof segment.end !== 'undefined') {
-        return {
-          result: segment.end - segment.duration,
-          precise: true
-        };
-      }
-    }
-
-    while (i--) {
-      segment = playlist.segments[i];
-
-      if (typeof segment.end !== 'undefined') {
-        return {
-          result: result + segment.end,
-          precise: true
-        };
-      }
-
-      result += segmentDurationWithParts(playlist, segment);
-
-      if (typeof segment.start !== 'undefined') {
-        return {
-          result: result + segment.start,
-          precise: true
-        };
-      }
-    }
-
-    return {
-      result: result,
-      precise: false
     };
-  };
-  /**
-   * walk forward until we find a duration we can use
-   * or return a failure
-   *
-   * @param {Playlist} playlist the playlist to walk through
-   * @param {number} endSequence the mediaSequence to stop walking on
-   */
+    /**
+     * Parses the manifest for a UTCTiming node, returning the nodes attributes if found
+     *
+     * @param {string} manifestString
+     *        XML string of the MPD manifest
+     * @return {Object|null}
+     *         Attributes of UTCTiming node specified in the manifest. Null if none found
+     */
 
+    const parseUTCTiming = manifestString => parseUTCTimingScheme(stringToMpdXml(manifestString));
 
-  var forwardDuration = function forwardDuration(playlist, endSequence) {
-    var result = 0;
-    var segment;
-    var i = endSequence - playlist.mediaSequence; // Walk forward until we find the earliest segment with timeline
-    // information
-
-    for (; i < playlist.segments.length; i++) {
-      segment = playlist.segments[i];
-
-      if (typeof segment.start !== 'undefined') {
-        return {
-          result: segment.start - result,
-          precise: true
-        };
-      }
-
-      result += segmentDurationWithParts(playlist, segment);
-
-      if (typeof segment.end !== 'undefined') {
-        return {
-          result: segment.end - result,
-          precise: true
-        };
-      }
-    } // indicate we didn't find a useful duration estimate
-
-
-    return {
-      result: -1,
-      precise: false
-    };
-  };
-  /**
-    * Calculate the media duration from the segments associated with a
-    * playlist. The duration of a subinterval of the available segments
-    * may be calculated by specifying an end index.
-    *
-    * @param {Object} playlist a media playlist object
-    * @param {number=} endSequence an exclusive upper boundary
-    * for the playlist.  Defaults to playlist length.
-    * @param {number} expired the amount of time that has dropped
-    * off the front of the playlist in a live scenario
-    * @return {number} the duration between the first available segment
-    * and end index.
-    */
-
-
-  var intervalDuration = function intervalDuration(playlist, endSequence, expired) {
-    if (typeof endSequence === 'undefined') {
-      endSequence = playlist.mediaSequence + playlist.segments.length;
-    }
-
-    if (endSequence < playlist.mediaSequence) {
-      return 0;
-    } // do a backward walk to estimate the duration
-
-
-    var backward = backwardDuration(playlist, endSequence);
-
-    if (backward.precise) {
-      // if we were able to base our duration estimate on timing
-      // information provided directly from the Media Source, return
-      // it
-      return backward.result;
-    } // walk forward to see if a precise duration estimate can be made
-    // that way
-
-
-    var forward = forwardDuration(playlist, endSequence);
-
-    if (forward.precise) {
-      // we found a segment that has been buffered and so it's
-      // position is known precisely
-      return forward.result;
-    } // return the less-precise, playlist-based duration estimate
-
-
-    return backward.result + expired;
-  };
-  /**
-    * Calculates the duration of a playlist. If a start and end index
-    * are specified, the duration will be for the subset of the media
-    * timeline between those two indices. The total duration for live
-    * playlists is always Infinity.
-    *
-    * @param {Object} playlist a media playlist object
-    * @param {number=} endSequence an exclusive upper
-    * boundary for the playlist. Defaults to the playlist media
-    * sequence number plus its length.
-    * @param {number=} expired the amount of time that has
-    * dropped off the front of the playlist in a live scenario
-    * @return {number} the duration between the start index and end
-    * index.
-    */
-
-
-  var duration = function duration(playlist, endSequence, expired) {
-    if (!playlist) {
-      return 0;
-    }
-
-    if (typeof expired !== 'number') {
-      expired = 0;
-    } // if a slice of the total duration is not requested, use
-    // playlist-level duration indicators when they're present
-
-
-    if (typeof endSequence === 'undefined') {
-      // if present, use the duration specified in the playlist
-      if (playlist.totalDuration) {
-        return playlist.totalDuration;
-      } // duration should be Infinity for live playlists
-
-
-      if (!playlist.endList) {
-        return window.Infinity;
-      }
-    } // calculate the total duration based on the segment durations
-
-
-    return intervalDuration(playlist, endSequence, expired);
-  };
-  /**
-    * Calculate the time between two indexes in the current playlist
-    * neight the start- nor the end-index need to be within the current
-    * playlist in which case, the targetDuration of the playlist is used
-    * to approximate the durations of the segments
-    *
-    * @param {Array} options.durationList list to iterate over for durations.
-    * @param {number} options.defaultDuration duration to use for elements before or after the durationList
-    * @param {number} options.startIndex partsAndSegments index to start
-    * @param {number} options.endIndex partsAndSegments index to end.
-    * @return {number} the number of seconds between startIndex and endIndex
-    */
-
-
-  var sumDurations = function sumDurations(_ref2) {
-    var defaultDuration = _ref2.defaultDuration,
-        durationList = _ref2.durationList,
-        startIndex = _ref2.startIndex,
-        endIndex = _ref2.endIndex;
-    var durations = 0;
-
-    if (startIndex > endIndex) {
-      var _ref3 = [endIndex, startIndex];
-      startIndex = _ref3[0];
-      endIndex = _ref3[1];
-    }
-
-    if (startIndex < 0) {
-      for (var i = startIndex; i < Math.min(0, endIndex); i++) {
-        durations += defaultDuration;
-      }
-
-      startIndex = 0;
-    }
-
-    for (var _i = startIndex; _i < endIndex; _i++) {
-      durations += durationList[_i].duration;
-    }
-
-    return durations;
-  };
-  /**
-   * Calculates the playlist end time
-   *
-   * @param {Object} playlist a media playlist object
-   * @param {number=} expired the amount of time that has
-   *                  dropped off the front of the playlist in a live scenario
-   * @param {boolean|false} useSafeLiveEnd a boolean value indicating whether or not the
-   *                        playlist end calculation should consider the safe live end
-   *                        (truncate the playlist end by three segments). This is normally
-   *                        used for calculating the end of the playlist's seekable range.
-   *                        This takes into account the value of liveEdgePadding.
-   *                        Setting liveEdgePadding to 0 is equivalent to setting this to false.
-   * @param {number} liveEdgePadding a number indicating how far from the end of the playlist we should be in seconds.
-   *                 If this is provided, it is used in the safe live end calculation.
-   *                 Setting useSafeLiveEnd=false or liveEdgePadding=0 are equivalent.
-   *                 Corresponds to suggestedPresentationDelay in DASH manifests.
-   * @return {number} the end time of playlist
-   * @function playlistEnd
-   */
-
-
-  var playlistEnd = function playlistEnd(playlist, expired, useSafeLiveEnd, liveEdgePadding) {
-    if (!playlist || !playlist.segments) {
-      return null;
-    }
-
-    if (playlist.endList) {
-      return duration(playlist);
-    }
-
-    if (expired === null) {
-      return null;
-    }
-
-    expired = expired || 0;
-    var lastSegmentEndTime = intervalDuration(playlist, playlist.mediaSequence + playlist.segments.length, expired);
-
-    if (useSafeLiveEnd) {
-      liveEdgePadding = typeof liveEdgePadding === 'number' ? liveEdgePadding : liveEdgeDelay(null, playlist);
-      lastSegmentEndTime -= liveEdgePadding;
-    } // don't return a time less than zero
-
-
-    return Math.max(0, lastSegmentEndTime);
-  };
-  /**
-    * Calculates the interval of time that is currently seekable in a
-    * playlist. The returned time ranges are relative to the earliest
-    * moment in the specified playlist that is still available. A full
-    * seekable implementation for live streams would need to offset
-    * these values by the duration of content that has expired from the
-    * stream.
-    *
-    * @param {Object} playlist a media playlist object
-    * dropped off the front of the playlist in a live scenario
-    * @param {number=} expired the amount of time that has
-    * dropped off the front of the playlist in a live scenario
-    * @param {number} liveEdgePadding how far from the end of the playlist we should be in seconds.
-    *        Corresponds to suggestedPresentationDelay in DASH manifests.
-    * @return {TimeRanges} the periods of time that are valid targets
-    * for seeking
-    */
-
-
-  var seekable = function seekable(playlist, expired, liveEdgePadding) {
-    var useSafeLiveEnd = true;
-    var seekableStart = expired || 0;
-    var seekableEnd = playlistEnd(playlist, expired, useSafeLiveEnd, liveEdgePadding);
-
-    if (seekableEnd === null) {
-      return createTimeRange();
-    }
-
-    return createTimeRange(seekableStart, seekableEnd);
-  };
-  /**
-   * Determine the index and estimated starting time of the segment that
-   * contains a specified playback position in a media playlist.
-   *
-   * @param {Object} options.playlist the media playlist to query
-   * @param {number} options.currentTime The number of seconds since the earliest
-   * possible position to determine the containing segment for
-   * @param {number} options.startTime the time when the segment/part starts
-   * @param {number} options.startingSegmentIndex the segment index to start looking at.
-   * @param {number?} [options.startingPartIndex] the part index to look at within the segment.
-   *
-   * @return {Object} an object with partIndex, segmentIndex, and startTime.
-   */
-
-
-  var getMediaInfoForTime = function getMediaInfoForTime(_ref4) {
-    var playlist = _ref4.playlist,
-        currentTime = _ref4.currentTime,
-        startingSegmentIndex = _ref4.startingSegmentIndex,
-        startingPartIndex = _ref4.startingPartIndex,
-        startTime = _ref4.startTime,
-        experimentalExactManifestTimings = _ref4.experimentalExactManifestTimings;
-    var time = currentTime - startTime;
-    var partsAndSegments = getPartsAndSegments(playlist);
-    var startIndex = 0;
-
-    for (var i = 0; i < partsAndSegments.length; i++) {
-      var partAndSegment = partsAndSegments[i];
-
-      if (startingSegmentIndex !== partAndSegment.segmentIndex) {
-        continue;
-      } // skip this if part index does not match.
-
-
-      if (typeof startingPartIndex === 'number' && typeof partAndSegment.partIndex === 'number' && startingPartIndex !== partAndSegment.partIndex) {
-        continue;
-      }
-
-      startIndex = i;
-      break;
-    }
-
-    if (time < 0) {
-      // Walk backward from startIndex in the playlist, adding durations
-      // until we find a segment that contains `time` and return it
-      if (startIndex > 0) {
-        for (var _i2 = startIndex - 1; _i2 >= 0; _i2--) {
-          var _partAndSegment = partsAndSegments[_i2];
-          time += _partAndSegment.duration;
-
-          if (experimentalExactManifestTimings) {
-            if (time < 0) {
-              continue;
+    var MAX_UINT32 = Math.pow(2, 32);
+    var getUint64$1 = function (uint8) {
+        var dv = new DataView(uint8.buffer, uint8.byteOffset, uint8.byteLength);
+        var value;
+        if (dv.getBigUint64) {
+            value = dv.getBigUint64(0);
+            if (value < Number.MAX_SAFE_INTEGER) {
+                return Number(value);
             }
-          } else if (time + TIME_FUDGE_FACTOR <= 0) {
-            continue;
-          }
-
-          return {
-            partIndex: _partAndSegment.partIndex,
-            segmentIndex: _partAndSegment.segmentIndex,
-            startTime: startTime - sumDurations({
-              defaultDuration: playlist.targetDuration,
-              durationList: partsAndSegments,
-              startIndex: startIndex,
-              endIndex: _i2
-            })
-          };
+            return value;
         }
-      } // We were unable to find a good segment within the playlist
-      // so select the first segment
-
-
-      return {
-        partIndex: partsAndSegments[0] && partsAndSegments[0].partIndex || null,
-        segmentIndex: partsAndSegments[0] && partsAndSegments[0].segmentIndex || 0,
-        startTime: currentTime
-      };
-    } // When startIndex is negative, we first walk forward to first segment
-    // adding target durations. If we "run out of time" before getting to
-    // the first segment, return the first segment
-
-
-    if (startIndex < 0) {
-      for (var _i3 = startIndex; _i3 < 0; _i3++) {
-        time -= playlist.targetDuration;
-
-        if (time < 0) {
-          return {
-            partIndex: partsAndSegments[0] && partsAndSegments[0].partIndex || null,
-            segmentIndex: partsAndSegments[0] && partsAndSegments[0].segmentIndex || 0,
-            startTime: currentTime
-          };
-        }
-      }
-
-      startIndex = 0;
-    } // Walk forward from startIndex in the playlist, subtracting durations
-    // until we find a segment that contains `time` and return it
-
-
-    for (var _i4 = startIndex; _i4 < partsAndSegments.length; _i4++) {
-      var _partAndSegment2 = partsAndSegments[_i4];
-      time -= _partAndSegment2.duration;
-
-      if (experimentalExactManifestTimings) {
-        if (time > 0) {
-          continue;
-        }
-      } else if (time - TIME_FUDGE_FACTOR >= 0) {
-        continue;
-      }
-
-      return {
-        partIndex: _partAndSegment2.partIndex,
-        segmentIndex: _partAndSegment2.segmentIndex,
-        startTime: startTime + sumDurations({
-          defaultDuration: playlist.targetDuration,
-          durationList: partsAndSegments,
-          startIndex: startIndex,
-          endIndex: _i4
-        })
-      };
-    } // We are out of possible candidates so load the last one...
-
-
-    return {
-      segmentIndex: partsAndSegments[partsAndSegments.length - 1].segmentIndex,
-      partIndex: partsAndSegments[partsAndSegments.length - 1].partIndex,
-      startTime: currentTime
+        return dv.getUint32(0) * MAX_UINT32 + dv.getUint32(4);
     };
-  };
-  /**
-   * Check whether the playlist is blacklisted or not.
-   *
-   * @param {Object} playlist the media playlist object
-   * @return {boolean} whether the playlist is blacklisted or not
-   * @function isBlacklisted
-   */
-
-
-  var isBlacklisted = function isBlacklisted(playlist) {
-    return playlist.excludeUntil && playlist.excludeUntil > Date.now();
-  };
-  /**
-   * Check whether the playlist is compatible with current playback configuration or has
-   * been blacklisted permanently for being incompatible.
-   *
-   * @param {Object} playlist the media playlist object
-   * @return {boolean} whether the playlist is incompatible or not
-   * @function isIncompatible
-   */
-
-
-  var isIncompatible = function isIncompatible(playlist) {
-    return playlist.excludeUntil && playlist.excludeUntil === Infinity;
-  };
-  /**
-   * Check whether the playlist is enabled or not.
-   *
-   * @param {Object} playlist the media playlist object
-   * @return {boolean} whether the playlist is enabled or not
-   * @function isEnabled
-   */
-
-
-  var isEnabled = function isEnabled(playlist) {
-    var blacklisted = isBlacklisted(playlist);
-    return !playlist.disabled && !blacklisted;
-  };
-  /**
-   * Check whether the playlist has been manually disabled through the representations api.
-   *
-   * @param {Object} playlist the media playlist object
-   * @return {boolean} whether the playlist is disabled manually or not
-   * @function isDisabled
-   */
-
-
-  var isDisabled = function isDisabled(playlist) {
-    return playlist.disabled;
-  };
-  /**
-   * Returns whether the current playlist is an AES encrypted HLS stream
-   *
-   * @return {boolean} true if it's an AES encrypted HLS stream
-   */
-
-
-  var isAes = function isAes(media) {
-    for (var i = 0; i < media.segments.length; i++) {
-      if (media.segments[i].key) {
-        return true;
-      }
-    }
-
-    return false;
-  };
-  /**
-   * Checks if the playlist has a value for the specified attribute
-   *
-   * @param {string} attr
-   *        Attribute to check for
-   * @param {Object} playlist
-   *        The media playlist object
-   * @return {boolean}
-   *         Whether the playlist contains a value for the attribute or not
-   * @function hasAttribute
-   */
-
-
-  var hasAttribute = function hasAttribute(attr, playlist) {
-    return playlist.attributes && playlist.attributes[attr];
-  };
-  /**
-   * Estimates the time required to complete a segment download from the specified playlist
-   *
-   * @param {number} segmentDuration
-   *        Duration of requested segment
-   * @param {number} bandwidth
-   *        Current measured bandwidth of the player
-   * @param {Object} playlist
-   *        The media playlist object
-   * @param {number=} bytesReceived
-   *        Number of bytes already received for the request. Defaults to 0
-   * @return {number|NaN}
-   *         The estimated time to request the segment. NaN if bandwidth information for
-   *         the given playlist is unavailable
-   * @function estimateSegmentRequestTime
-   */
-
-
-  var estimateSegmentRequestTime = function estimateSegmentRequestTime(segmentDuration, bandwidth, playlist, bytesReceived) {
-    if (bytesReceived === void 0) {
-      bytesReceived = 0;
-    }
-
-    if (!hasAttribute('BANDWIDTH', playlist)) {
-      return NaN;
-    }
-
-    var size = segmentDuration * playlist.attributes.BANDWIDTH;
-    return (size - bytesReceived * 8) / bandwidth;
-  };
-  /*
-   * Returns whether the current playlist is the lowest rendition
-   *
-   * @return {Boolean} true if on lowest rendition
-   */
-
-
-  var isLowestEnabledRendition = function isLowestEnabledRendition(master, media) {
-    if (master.playlists.length === 1) {
-      return true;
-    }
-
-    var currentBandwidth = media.attributes.BANDWIDTH || Number.MAX_VALUE;
-    return master.playlists.filter(function (playlist) {
-      if (!isEnabled(playlist)) {
-        return false;
-      }
-
-      return (playlist.attributes.BANDWIDTH || 0) < currentBandwidth;
-    }).length === 0;
-  };
-
-  var playlistMatch = function playlistMatch(a, b) {
-    // both playlits are null
-    // or only one playlist is non-null
-    // no match
-    if (!a && !b || !a && b || a && !b) {
-      return false;
-    } // playlist objects are the same, match
-
-
-    if (a === b) {
-      return true;
-    } // first try to use id as it should be the most
-    // accurate
-
-
-    if (a.id && b.id && a.id === b.id) {
-      return true;
-    } // next try to use reslovedUri as it should be the
-    // second most accurate.
-
-
-    if (a.resolvedUri && b.resolvedUri && a.resolvedUri === b.resolvedUri) {
-      return true;
-    } // finally try to use uri as it should be accurate
-    // but might miss a few cases for relative uris
-
-
-    if (a.uri && b.uri && a.uri === b.uri) {
-      return true;
-    }
-
-    return false;
-  };
-
-  var someAudioVariant = function someAudioVariant(master, callback) {
-    var AUDIO = master && master.mediaGroups && master.mediaGroups.AUDIO || {};
-    var found = false;
-
-    for (var groupName in AUDIO) {
-      for (var label in AUDIO[groupName]) {
-        found = callback(AUDIO[groupName][label]);
-
-        if (found) {
-          break;
-        }
-      }
-
-      if (found) {
-        break;
-      }
-    }
-
-    return !!found;
-  };
-
-  var isAudioOnly = function isAudioOnly(master) {
-    // we are audio only if we have no main playlists but do
-    // have media group playlists.
-    if (!master || !master.playlists || !master.playlists.length) {
-      // without audio variants or playlists this
-      // is not an audio only master.
-      var found = someAudioVariant(master, function (variant) {
-        return variant.playlists && variant.playlists.length || variant.uri;
-      });
-      return found;
-    } // if every playlist has only an audio codec it is audio only
-
-
-    var _loop = function _loop(i) {
-      var playlist = master.playlists[i];
-      var CODECS = playlist.attributes && playlist.attributes.CODECS; // all codecs are audio, this is an audio playlist.
-
-      if (CODECS && CODECS.split(',').every(function (c) {
-        return isAudioCodec(c);
-      })) {
-        return "continue";
-      } // playlist is in an audio group it is audio only
-
-
-      var found = someAudioVariant(master, function (variant) {
-        return playlistMatch(playlist, variant);
-      });
-
-      if (found) {
-        return "continue";
-      } // if we make it here this playlist isn't audio and we
-      // are not audio only
-
-
-      return {
-        v: false
-      };
-    };
-
-    for (var i = 0; i < master.playlists.length; i++) {
-      var _ret = _loop(i);
-
-      if (_ret === "continue") continue;
-      if (typeof _ret === "object") return _ret.v;
-    } // if we make it past every playlist without returning, then
-    // this is an audio only playlist.
-
-
-    return true;
-  }; // exports
-
-
-  var Playlist = {
-    liveEdgeDelay: liveEdgeDelay,
-    duration: duration,
-    seekable: seekable,
-    getMediaInfoForTime: getMediaInfoForTime,
-    isEnabled: isEnabled,
-    isDisabled: isDisabled,
-    isBlacklisted: isBlacklisted,
-    isIncompatible: isIncompatible,
-    playlistEnd: playlistEnd,
-    isAes: isAes,
-    hasAttribute: hasAttribute,
-    estimateSegmentRequestTime: estimateSegmentRequestTime,
-    isLowestEnabledRendition: isLowestEnabledRendition,
-    isAudioOnly: isAudioOnly,
-    playlistMatch: playlistMatch,
-    segmentDurationWithParts: segmentDurationWithParts
-  };
-  var log = videojs.log;
-
-  var createPlaylistID = function createPlaylistID(index, uri) {
-    return index + "-" + uri;
-  };
-  /**
-   * Parses a given m3u8 playlist
-   *
-   * @param {Function} [onwarn]
-   *        a function to call when the parser triggers a warning event.
-   * @param {Function} [oninfo]
-   *        a function to call when the parser triggers an info event.
-   * @param {string} manifestString
-   *        The downloaded manifest string
-   * @param {Object[]} [customTagParsers]
-   *        An array of custom tag parsers for the m3u8-parser instance
-   * @param {Object[]} [customTagMappers]
-   *        An array of custom tag mappers for the m3u8-parser instance
-   * @param {boolean} [experimentalLLHLS=false]
-   *        Whether to keep ll-hls features in the manifest after parsing.
-   * @return {Object}
-   *         The manifest object
-   */
-
-
-  var parseManifest = function parseManifest(_ref) {
-    var onwarn = _ref.onwarn,
-        oninfo = _ref.oninfo,
-        manifestString = _ref.manifestString,
-        _ref$customTagParsers = _ref.customTagParsers,
-        customTagParsers = _ref$customTagParsers === void 0 ? [] : _ref$customTagParsers,
-        _ref$customTagMappers = _ref.customTagMappers,
-        customTagMappers = _ref$customTagMappers === void 0 ? [] : _ref$customTagMappers,
-        experimentalLLHLS = _ref.experimentalLLHLS;
-    var parser = new Parser();
-
-    if (onwarn) {
-      parser.on('warn', onwarn);
-    }
-
-    if (oninfo) {
-      parser.on('info', oninfo);
-    }
-
-    customTagParsers.forEach(function (customParser) {
-      return parser.addParser(customParser);
-    });
-    customTagMappers.forEach(function (mapper) {
-      return parser.addTagMapper(mapper);
-    });
-    parser.push(manifestString);
-    parser.end();
-    var manifest = parser.manifest; // remove llhls features from the parsed manifest
-    // if we don't want llhls support.
-
-    if (!experimentalLLHLS) {
-      ['preloadSegment', 'skip', 'serverControl', 'renditionReports', 'partInf', 'partTargetDuration'].forEach(function (k) {
-        if (manifest.hasOwnProperty(k)) {
-          delete manifest[k];
-        }
-      });
-
-      if (manifest.segments) {
-        manifest.segments.forEach(function (segment) {
-          ['parts', 'preloadHints'].forEach(function (k) {
-            if (segment.hasOwnProperty(k)) {
-              delete segment[k];
-            }
-          });
-        });
-      }
-    }
-
-    if (!manifest.targetDuration) {
-      var targetDuration = 10;
-
-      if (manifest.segments && manifest.segments.length) {
-        targetDuration = manifest.segments.reduce(function (acc, s) {
-          return Math.max(acc, s.duration);
-        }, 0);
-      }
-
-      if (onwarn) {
-        onwarn("manifest has no targetDuration defaulting to " + targetDuration);
-      }
-
-      manifest.targetDuration = targetDuration;
-    }
-
-    var parts = getLastParts(manifest);
-
-    if (parts.length && !manifest.partTargetDuration) {
-      var partTargetDuration = parts.reduce(function (acc, p) {
-        return Math.max(acc, p.duration);
-      }, 0);
-
-      if (onwarn) {
-        onwarn("manifest has no partTargetDuration defaulting to " + partTargetDuration);
-        log.error('LL-HLS manifest has parts but lacks required #EXT-X-PART-INF:PART-TARGET value. See https://datatracker.ietf.org/doc/html/draft-pantos-hls-rfc8216bis-09#section-4.4.3.7. Playback is not guaranteed.');
-      }
-
-      manifest.partTargetDuration = partTargetDuration;
-    }
-
-    return manifest;
-  };
-  /**
-   * Loops through all supported media groups in master and calls the provided
-   * callback for each group
-   *
-   * @param {Object} master
-   *        The parsed master manifest object
-   * @param {Function} callback
-   *        Callback to call for each media group
-   */
-
-
-  var forEachMediaGroup = function forEachMediaGroup(master, callback) {
-    if (!master.mediaGroups) {
-      return;
-    }
-
-    ['AUDIO', 'SUBTITLES'].forEach(function (mediaType) {
-      if (!master.mediaGroups[mediaType]) {
-        return;
-      }
-
-      for (var groupKey in master.mediaGroups[mediaType]) {
-        for (var labelKey in master.mediaGroups[mediaType][groupKey]) {
-          var mediaProperties = master.mediaGroups[mediaType][groupKey][labelKey];
-          callback(mediaProperties, mediaType, groupKey, labelKey);
-        }
-      }
-    });
-  };
-  /**
-   * Adds properties and attributes to the playlist to keep consistent functionality for
-   * playlists throughout VHS.
-   *
-   * @param {Object} config
-   *        Arguments object
-   * @param {Object} config.playlist
-   *        The media playlist
-   * @param {string} [config.uri]
-   *        The uri to the media playlist (if media playlist is not from within a master
-   *        playlist)
-   * @param {string} id
-   *        ID to use for the playlist
-   */
-
-
-  var setupMediaPlaylist = function setupMediaPlaylist(_ref2) {
-    var playlist = _ref2.playlist,
-        uri = _ref2.uri,
-        id = _ref2.id;
-    playlist.id = id;
-    playlist.playlistErrors_ = 0;
-
-    if (uri) {
-      // For media playlists, m3u8-parser does not have access to a URI, as HLS media
-      // playlists do not contain their own source URI, but one is needed for consistency in
-      // VHS.
-      playlist.uri = uri;
-    } // For HLS master playlists, even though certain attributes MUST be defined, the
-    // stream may still be played without them.
-    // For HLS media playlists, m3u8-parser does not attach an attributes object to the
-    // manifest.
-    //
-    // To avoid undefined reference errors through the project, and make the code easier
-    // to write/read, add an empty attributes object for these cases.
-
-
-    playlist.attributes = playlist.attributes || {};
-  };
-  /**
-   * Adds ID, resolvedUri, and attributes properties to each playlist of the master, where
-   * necessary. In addition, creates playlist IDs for each playlist and adds playlist ID to
-   * playlist references to the playlists array.
-   *
-   * @param {Object} master
-   *        The master playlist
-   */
-
-
-  var setupMediaPlaylists = function setupMediaPlaylists(master) {
-    var i = master.playlists.length;
-
-    while (i--) {
-      var playlist = master.playlists[i];
-      setupMediaPlaylist({
-        playlist: playlist,
-        id: createPlaylistID(i, playlist.uri)
-      });
-      playlist.resolvedUri = resolveUrl(master.uri, playlist.uri);
-      master.playlists[playlist.id] = playlist; // URI reference added for backwards compatibility
-
-      master.playlists[playlist.uri] = playlist; // Although the spec states an #EXT-X-STREAM-INF tag MUST have a BANDWIDTH attribute,
-      // the stream can be played without it. Although an attributes property may have been
-      // added to the playlist to prevent undefined references, issue a warning to fix the
-      // manifest.
-
-      if (!playlist.attributes.BANDWIDTH) {
-        log.warn('Invalid playlist STREAM-INF detected. Missing BANDWIDTH attribute.');
-      }
-    }
-  };
-  /**
-   * Adds resolvedUri properties to each media group.
-   *
-   * @param {Object} master
-   *        The master playlist
-   */
-
-
-  var resolveMediaGroupUris = function resolveMediaGroupUris(master) {
-    forEachMediaGroup(master, function (properties) {
-      if (properties.uri) {
-        properties.resolvedUri = resolveUrl(master.uri, properties.uri);
-      }
-    });
-  };
-  /**
-   * Creates a master playlist wrapper to insert a sole media playlist into.
-   *
-   * @param {Object} media
-   *        Media playlist
-   * @param {string} uri
-   *        The media URI
-   *
-   * @return {Object}
-   *         Master playlist
-   */
-
-
-  var masterForMedia = function masterForMedia(media, uri) {
-    var id = createPlaylistID(0, uri);
-    var master = {
-      mediaGroups: {
-        'AUDIO': {},
-        'VIDEO': {},
-        'CLOSED-CAPTIONS': {},
-        'SUBTITLES': {}
-      },
-      uri: window.location.href,
-      resolvedUri: window.location.href,
-      playlists: [{
-        uri: uri,
-        id: id,
-        resolvedUri: uri,
-        // m3u8-parser does not attach an attributes property to media playlists so make
-        // sure that the property is attached to avoid undefined reference errors
-        attributes: {}
-      }]
-    }; // set up ID reference
-
-    master.playlists[id] = master.playlists[0]; // URI reference added for backwards compatibility
-
-    master.playlists[uri] = master.playlists[0];
-    return master;
-  };
-  /**
-   * Does an in-place update of the master manifest to add updated playlist URI references
-   * as well as other properties needed by VHS that aren't included by the parser.
-   *
-   * @param {Object} master
-   *        Master manifest object
-   * @param {string} uri
-   *        The source URI
-   */
-
-
-  var addPropertiesToMaster = function addPropertiesToMaster(master, uri) {
-    master.uri = uri;
-
-    for (var i = 0; i < master.playlists.length; i++) {
-      if (!master.playlists[i].uri) {
-        // Set up phony URIs for the playlists since playlists are referenced by their URIs
-        // throughout VHS, but some formats (e.g., DASH) don't have external URIs
-        // TODO: consider adding dummy URIs in mpd-parser
-        var phonyUri = "placeholder-uri-" + i;
-        master.playlists[i].uri = phonyUri;
-      }
-    }
-
-    var audioOnlyMaster = isAudioOnly(master);
-    forEachMediaGroup(master, function (properties, mediaType, groupKey, labelKey) {
-      var groupId = "placeholder-uri-" + mediaType + "-" + groupKey + "-" + labelKey; // add a playlist array under properties
-
-      if (!properties.playlists || !properties.playlists.length) {
-        // If the manifest is audio only and this media group does not have a uri, check
-        // if the media group is located in the main list of playlists. If it is, don't add
-        // placeholder properties as it shouldn't be considered an alternate audio track.
-        if (audioOnlyMaster && mediaType === 'AUDIO' && !properties.uri) {
-          for (var _i = 0; _i < master.playlists.length; _i++) {
-            var p = master.playlists[_i];
-
-            if (p.attributes && p.attributes.AUDIO && p.attributes.AUDIO === groupKey) {
-              return;
-            }
-          }
-        }
-
-        properties.playlists = [_extends_1({}, properties)];
-      }
-
-      properties.playlists.forEach(function (p, i) {
-        var id = createPlaylistID(i, groupId);
-
-        if (p.uri) {
-          p.resolvedUri = p.resolvedUri || resolveUrl(master.uri, p.uri);
-        } else {
-          // DEPRECATED, this has been added to prevent a breaking change.
-          // previously we only ever had a single media group playlist, so
-          // we mark the first playlist uri without prepending the index as we used to
-          // ideally we would do all of the playlists the same way.
-          p.uri = i === 0 ? groupId : id; // don't resolve a placeholder uri to an absolute url, just use
-          // the placeholder again
-
-          p.resolvedUri = p.uri;
-        }
-
-        p.id = p.id || id; // add an empty attributes object, all playlists are
-        // expected to have this.
-
-        p.attributes = p.attributes || {}; // setup ID and URI references (URI for backwards compatibility)
-
-        master.playlists[p.id] = p;
-        master.playlists[p.uri] = p;
-      });
-    });
-    setupMediaPlaylists(master);
-    resolveMediaGroupUris(master);
-  };
-
-  var mergeOptions$2 = videojs.mergeOptions,
-      EventTarget$1 = videojs.EventTarget;
-
-  var addLLHLSQueryDirectives = function addLLHLSQueryDirectives(uri, media) {
-    if (media.endList || !media.serverControl) {
-      return uri;
-    }
-
-    var parameters = {};
-
-    if (media.serverControl.canBlockReload) {
-      var preloadSegment = media.preloadSegment; // next msn is a zero based value, length is not.
-
-      var nextMSN = media.mediaSequence + media.segments.length; // If preload segment has parts then it is likely
-      // that we are going to request a part of that preload segment.
-      // the logic below is used to determine that.
-
-      if (preloadSegment) {
-        var parts = preloadSegment.parts || []; // _HLS_part is a zero based index
-
-        var nextPart = getKnownPartCount(media) - 1; // if nextPart is > -1 and not equal to just the
-        // length of parts, then we know we had part preload hints
-        // and we need to add the _HLS_part= query
-
-        if (nextPart > -1 && nextPart !== parts.length - 1) {
-          // add existing parts to our preload hints
-          // eslint-disable-next-line
-          parameters._HLS_part = nextPart;
-        } // this if statement makes sure that we request the msn
-        // of the preload segment if:
-        // 1. the preload segment had parts (and was not yet a full segment)
-        //    but was added to our segments array
-        // 2. the preload segment had preload hints for parts that are not in
-        //    the manifest yet.
-        // in all other cases we want the segment after the preload segment
-        // which will be given by using media.segments.length because it is 1 based
-        // rather than 0 based.
-
-
-        if (nextPart > -1 || parts.length) {
-          nextMSN--;
-        }
-      } // add _HLS_msn= in front of any _HLS_part query
-      // eslint-disable-next-line
-
-
-      parameters._HLS_msn = nextMSN;
-    }
-
-    if (media.serverControl && media.serverControl.canSkipUntil) {
-      // add _HLS_skip= infront of all other queries.
-      // eslint-disable-next-line
-      parameters._HLS_skip = media.serverControl.canSkipDateranges ? 'v2' : 'YES';
-    }
-
-    if (Object.keys(parameters).length) {
-      var parsedUri = new window.URL(uri);
-      ['_HLS_skip', '_HLS_msn', '_HLS_part'].forEach(function (name) {
-        if (!parameters.hasOwnProperty(name)) {
-          return;
-        }
-
-        parsedUri.searchParams.set(name, parameters[name]);
-      });
-      uri = parsedUri.toString();
-    }
-
-    return uri;
-  };
-  /**
-   * Returns a new segment object with properties and
-   * the parts array merged.
-   *
-   * @param {Object} a the old segment
-   * @param {Object} b the new segment
-   *
-   * @return {Object} the merged segment
-   */
-
-
-  var updateSegment = function updateSegment(a, b) {
-    if (!a) {
-      return b;
-    }
-
-    var result = mergeOptions$2(a, b); // if only the old segment has preload hints
-    // and the new one does not, remove preload hints.
-
-    if (a.preloadHints && !b.preloadHints) {
-      delete result.preloadHints;
-    } // if only the old segment has parts
-    // then the parts are no longer valid
-
-
-    if (a.parts && !b.parts) {
-      delete result.parts; // if both segments have parts
-      // copy part propeties from the old segment
-      // to the new one.
-    } else if (a.parts && b.parts) {
-      for (var i = 0; i < b.parts.length; i++) {
-        if (a.parts && a.parts[i]) {
-          result.parts[i] = mergeOptions$2(a.parts[i], b.parts[i]);
-        }
-      }
-    } // set skipped to false for segments that have
-    // have had information merged from the old segment.
-
-
-    if (!a.skipped && b.skipped) {
-      result.skipped = false;
-    } // set preload to false for segments that have
-    // had information added in the new segment.
-
-
-    if (a.preload && !b.preload) {
-      result.preload = false;
-    }
-
-    return result;
-  };
-  /**
-   * Returns a new array of segments that is the result of merging
-   * properties from an older list of segments onto an updated
-   * list. No properties on the updated playlist will be ovewritten.
-   *
-   * @param {Array} original the outdated list of segments
-   * @param {Array} update the updated list of segments
-   * @param {number=} offset the index of the first update
-   * segment in the original segment list. For non-live playlists,
-   * this should always be zero and does not need to be
-   * specified. For live playlists, it should be the difference
-   * between the media sequence numbers in the original and updated
-   * playlists.
-   * @return {Array} a list of merged segment objects
-   */
-
-
-  var updateSegments = function updateSegments(original, update, offset) {
-    var oldSegments = original.slice();
-    var newSegments = update.slice();
-    offset = offset || 0;
-    var result = [];
-    var currentMap;
-
-    for (var newIndex = 0; newIndex < newSegments.length; newIndex++) {
-      var oldSegment = oldSegments[newIndex + offset];
-      var newSegment = newSegments[newIndex];
-
-      if (oldSegment) {
-        currentMap = oldSegment.map || currentMap;
-        result.push(updateSegment(oldSegment, newSegment));
-      } else {
-        // carry over map to new segment if it is missing
-        if (currentMap && !newSegment.map) {
-          newSegment.map = currentMap;
-        }
-
-        result.push(newSegment);
-      }
-    }
-
-    return result;
-  };
-
-  var resolveSegmentUris = function resolveSegmentUris(segment, baseUri) {
-    // preloadSegment will not have a uri at all
-    // as the segment isn't actually in the manifest yet, only parts
-    if (!segment.resolvedUri && segment.uri) {
-      segment.resolvedUri = resolveUrl(baseUri, segment.uri);
-    }
-
-    if (segment.key && !segment.key.resolvedUri) {
-      segment.key.resolvedUri = resolveUrl(baseUri, segment.key.uri);
-    }
-
-    if (segment.map && !segment.map.resolvedUri) {
-      segment.map.resolvedUri = resolveUrl(baseUri, segment.map.uri);
-    }
-
-    if (segment.map && segment.map.key && !segment.map.key.resolvedUri) {
-      segment.map.key.resolvedUri = resolveUrl(baseUri, segment.map.key.uri);
-    }
-
-    if (segment.parts && segment.parts.length) {
-      segment.parts.forEach(function (p) {
-        if (p.resolvedUri) {
-          return;
-        }
-
-        p.resolvedUri = resolveUrl(baseUri, p.uri);
-      });
-    }
-
-    if (segment.preloadHints && segment.preloadHints.length) {
-      segment.preloadHints.forEach(function (p) {
-        if (p.resolvedUri) {
-          return;
-        }
-
-        p.resolvedUri = resolveUrl(baseUri, p.uri);
-      });
-    }
-  };
-
-  var getAllSegments = function getAllSegments(media) {
-    var segments = media.segments || [];
-    var preloadSegment = media.preloadSegment; // a preloadSegment with only preloadHints is not currently
-    // a usable segment, only include a preloadSegment that has
-    // parts.
-
-    if (preloadSegment && preloadSegment.parts && preloadSegment.parts.length) {
-      // if preloadHints has a MAP that means that the
-      // init segment is going to change. We cannot use any of the parts
-      // from this preload segment.
-      if (preloadSegment.preloadHints) {
-        for (var i = 0; i < preloadSegment.preloadHints.length; i++) {
-          if (preloadSegment.preloadHints[i].type === 'MAP') {
-            return segments;
-          }
-        }
-      } // set the duration for our preload segment to target duration.
-
-
-      preloadSegment.duration = media.targetDuration;
-      preloadSegment.preload = true;
-      segments.push(preloadSegment);
-    }
-
-    return segments;
-  }; // consider the playlist unchanged if the playlist object is the same or
-  // the number of segments is equal, the media sequence number is unchanged,
-  // and this playlist hasn't become the end of the playlist
-
-
-  var isPlaylistUnchanged = function isPlaylistUnchanged(a, b) {
-    return a === b || a.segments && b.segments && a.segments.length === b.segments.length && a.endList === b.endList && a.mediaSequence === b.mediaSequence && a.preloadSegment === b.preloadSegment;
-  };
-  /**
-    * Returns a new master playlist that is the result of merging an
-    * updated media playlist into the original version. If the
-    * updated media playlist does not match any of the playlist
-    * entries in the original master playlist, null is returned.
-    *
-    * @param {Object} master a parsed master M3U8 object
-    * @param {Object} media a parsed media M3U8 object
-    * @return {Object} a new object that represents the original
-    * master playlist with the updated media playlist merged in, or
-    * null if the merge produced no change.
-    */
-
-
-  var updateMaster$1 = function updateMaster(master, newMedia, unchangedCheck) {
-    if (unchangedCheck === void 0) {
-      unchangedCheck = isPlaylistUnchanged;
-    }
-
-    var result = mergeOptions$2(master, {});
-    var oldMedia = result.playlists[newMedia.id];
-
-    if (!oldMedia) {
-      return null;
-    }
-
-    if (unchangedCheck(oldMedia, newMedia)) {
-      return null;
-    }
-
-    newMedia.segments = getAllSegments(newMedia);
-    var mergedPlaylist = mergeOptions$2(oldMedia, newMedia); // always use the new media's preload segment
-
-    if (mergedPlaylist.preloadSegment && !newMedia.preloadSegment) {
-      delete mergedPlaylist.preloadSegment;
-    } // if the update could overlap existing segment information, merge the two segment lists
-
-
-    if (oldMedia.segments) {
-      if (newMedia.skip) {
-        newMedia.segments = newMedia.segments || []; // add back in objects for skipped segments, so that we merge
-        // old properties into the new segments
-
-        for (var i = 0; i < newMedia.skip.skippedSegments; i++) {
-          newMedia.segments.unshift({
-            skipped: true
-          });
-        }
-      }
-
-      mergedPlaylist.segments = updateSegments(oldMedia.segments, newMedia.segments, newMedia.mediaSequence - oldMedia.mediaSequence);
-    } // resolve any segment URIs to prevent us from having to do it later
-
-
-    mergedPlaylist.segments.forEach(function (segment) {
-      resolveSegmentUris(segment, mergedPlaylist.resolvedUri);
-    }); // TODO Right now in the playlists array there are two references to each playlist, one
-    // that is referenced by index, and one by URI. The index reference may no longer be
-    // necessary.
-
-    for (var _i = 0; _i < result.playlists.length; _i++) {
-      if (result.playlists[_i].id === newMedia.id) {
-        result.playlists[_i] = mergedPlaylist;
-      }
-    }
-
-    result.playlists[newMedia.id] = mergedPlaylist; // URI reference added for backwards compatibility
-
-    result.playlists[newMedia.uri] = mergedPlaylist; // update media group playlist references.
-
-    forEachMediaGroup(master, function (properties, mediaType, groupKey, labelKey) {
-      if (!properties.playlists) {
-        return;
-      }
-
-      for (var _i2 = 0; _i2 < properties.playlists.length; _i2++) {
-        if (newMedia.id === properties.playlists[_i2].id) {
-          properties.playlists[_i2] = mergedPlaylist;
-        }
-      }
-    });
-    return result;
-  };
-  /**
-   * Calculates the time to wait before refreshing a live playlist
-   *
-   * @param {Object} media
-   *        The current media
-   * @param {boolean} update
-   *        True if there were any updates from the last refresh, false otherwise
-   * @return {number}
-   *         The time in ms to wait before refreshing the live playlist
-   */
-
-
-  var refreshDelay = function refreshDelay(media, update) {
-    var segments = media.segments || [];
-    var lastSegment = segments[segments.length - 1];
-    var lastPart = lastSegment && lastSegment.parts && lastSegment.parts[lastSegment.parts.length - 1];
-    var lastDuration = lastPart && lastPart.duration || lastSegment && lastSegment.duration;
-
-    if (update && lastDuration) {
-      return lastDuration * 1000;
-    } // if the playlist is unchanged since the last reload or last segment duration
-    // cannot be determined, try again after half the target duration
-
-
-    return (media.partTargetDuration || media.targetDuration || 10) * 500;
-  };
-  /**
-   * Load a playlist from a remote location
-   *
-   * @class PlaylistLoader
-   * @extends Stream
-   * @param {string|Object} src url or object of manifest
-   * @param {boolean} withCredentials the withCredentials xhr option
-   * @class
-   */
-
-
-  var PlaylistLoader = /*#__PURE__*/function (_EventTarget) {
-    inheritsLoose(PlaylistLoader, _EventTarget);
-
-    function PlaylistLoader(src, vhs, options) {
-      var _this;
-
-      if (options === void 0) {
-        options = {};
-      }
-
-      _this = _EventTarget.call(this) || this;
-
-      if (!src) {
-        throw new Error('A non-empty playlist URL or object is required');
-      }
-
-      _this.logger_ = logger('PlaylistLoader');
-      var _options = options,
-          _options$withCredenti = _options.withCredentials,
-          withCredentials = _options$withCredenti === void 0 ? false : _options$withCredenti,
-          _options$handleManife = _options.handleManifestRedirects,
-          handleManifestRedirects = _options$handleManife === void 0 ? false : _options$handleManife;
-      _this.src = src;
-      _this.vhs_ = vhs;
-      _this.withCredentials = withCredentials;
-      _this.handleManifestRedirects = handleManifestRedirects;
-      var vhsOptions = vhs.options_;
-      _this.customTagParsers = vhsOptions && vhsOptions.customTagParsers || [];
-      _this.customTagMappers = vhsOptions && vhsOptions.customTagMappers || [];
-      _this.experimentalLLHLS = vhsOptions && vhsOptions.experimentalLLHLS || false; // force experimentalLLHLS for IE 11
-
-      if (videojs.browser.IE_VERSION) {
-        _this.experimentalLLHLS = false;
-      } // initialize the loader state
-
-
-      _this.state = 'HAVE_NOTHING'; // live playlist staleness timeout
-
-      _this.handleMediaupdatetimeout_ = _this.handleMediaupdatetimeout_.bind(assertThisInitialized(_this));
-
-      _this.on('mediaupdatetimeout', _this.handleMediaupdatetimeout_);
-
-      return _this;
-    }
-
-    var _proto = PlaylistLoader.prototype;
-
-    _proto.handleMediaupdatetimeout_ = function handleMediaupdatetimeout_() {
-      var _this2 = this;
-
-      if (this.state !== 'HAVE_METADATA') {
-        // only refresh the media playlist if no other activity is going on
-        return;
-      }
-
-      var media = this.media();
-      var uri = resolveUrl(this.master.uri, media.uri);
-
-      if (this.experimentalLLHLS) {
-        uri = addLLHLSQueryDirectives(uri, media);
-      }
-
-      this.state = 'HAVE_CURRENT_METADATA';
-      this.request = this.vhs_.xhr({
-        uri: uri,
-        withCredentials: this.withCredentials
-      }, function (error, req) {
-        // disposed
-        if (!_this2.request) {
-          return;
-        }
-
-        if (error) {
-          return _this2.playlistRequestError(_this2.request, _this2.media(), 'HAVE_METADATA');
-        }
-
-        _this2.haveMetadata({
-          playlistString: _this2.request.responseText,
-          url: _this2.media().uri,
-          id: _this2.media().id
-        });
-      });
-    };
-
-    _proto.playlistRequestError = function playlistRequestError(xhr, playlist, startingState) {
-      var uri = playlist.uri,
-          id = playlist.id; // any in-flight request is now finished
-
-      this.request = null;
-
-      if (startingState) {
-        this.state = startingState;
-      }
-
-      this.error = {
-        playlist: this.master.playlists[id],
-        status: xhr.status,
-        message: "HLS playlist request error at URL: " + uri + ".",
-        responseText: xhr.responseText,
-        code: xhr.status >= 500 ? 4 : 2
-      };
-      this.trigger('error');
-    };
-
-    _proto.parseManifest_ = function parseManifest_(_ref) {
-      var _this3 = this;
-
-      var url = _ref.url,
-          manifestString = _ref.manifestString;
-      return parseManifest({
-        onwarn: function onwarn(_ref2) {
-          var message = _ref2.message;
-          return _this3.logger_("m3u8-parser warn for " + url + ": " + message);
-        },
-        oninfo: function oninfo(_ref3) {
-          var message = _ref3.message;
-          return _this3.logger_("m3u8-parser info for " + url + ": " + message);
-        },
-        manifestString: manifestString,
-        customTagParsers: this.customTagParsers,
-        customTagMappers: this.customTagMappers,
-        experimentalLLHLS: this.experimentalLLHLS
-      });
-    }
-    /**
-     * Update the playlist loader's state in response to a new or updated playlist.
-     *
-     * @param {string} [playlistString]
-     *        Playlist string (if playlistObject is not provided)
-     * @param {Object} [playlistObject]
-     *        Playlist object (if playlistString is not provided)
-     * @param {string} url
-     *        URL of playlist
-     * @param {string} id
-     *        ID to use for playlist
-     */
-    ;
-
-    _proto.haveMetadata = function haveMetadata(_ref4) {
-      var playlistString = _ref4.playlistString,
-          playlistObject = _ref4.playlistObject,
-          url = _ref4.url,
-          id = _ref4.id; // any in-flight request is now finished
-
-      this.request = null;
-      this.state = 'HAVE_METADATA';
-      var playlist = playlistObject || this.parseManifest_({
-        url: url,
-        manifestString: playlistString
-      });
-      playlist.lastRequest = Date.now();
-      setupMediaPlaylist({
-        playlist: playlist,
-        uri: url,
-        id: id
-      }); // merge this playlist into the master
-
-      var update = updateMaster$1(this.master, playlist);
-      this.targetDuration = playlist.partTargetDuration || playlist.targetDuration;
-      this.pendingMedia_ = null;
-
-      if (update) {
-        this.master = update;
-        this.media_ = this.master.playlists[id];
-      } else {
-        this.trigger('playlistunchanged');
-      }
-
-      this.updateMediaUpdateTimeout_(refreshDelay(this.media(), !!update));
-      this.trigger('loadedplaylist');
-    }
-    /**
-      * Abort any outstanding work and clean up.
-      */
-    ;
-
-    _proto.dispose = function dispose() {
-      this.trigger('dispose');
-      this.stopRequest();
-      window.clearTimeout(this.mediaUpdateTimeout);
-      window.clearTimeout(this.finalRenditionTimeout);
-      this.off();
-    };
-
-    _proto.stopRequest = function stopRequest() {
-      if (this.request) {
-        var oldRequest = this.request;
-        this.request = null;
-        oldRequest.onreadystatechange = null;
-        oldRequest.abort();
-      }
-    }
-    /**
-      * When called without any arguments, returns the currently
-      * active media playlist. When called with a single argument,
-      * triggers the playlist loader to asynchronously switch to the
-      * specified media playlist. Calling this method while the
-      * loader is in the HAVE_NOTHING causes an error to be emitted
-      * but otherwise has no effect.
-      *
-      * @param {Object=} playlist the parsed media playlist
-      * object to switch to
-      * @param {boolean=} shouldDelay whether we should delay the request by half target duration
-      *
-      * @return {Playlist} the current loaded media
-      */
-    ;
-
-    _proto.media = function media(playlist, shouldDelay) {
-      var _this4 = this; // getter
-
-
-      if (!playlist) {
-        return this.media_;
-      } // setter
-
-
-      if (this.state === 'HAVE_NOTHING') {
-        throw new Error('Cannot switch media playlist from ' + this.state);
-      } // find the playlist object if the target playlist has been
-      // specified by URI
-
-
-      if (typeof playlist === 'string') {
-        if (!this.master.playlists[playlist]) {
-          throw new Error('Unknown playlist URI: ' + playlist);
-        }
-
-        playlist = this.master.playlists[playlist];
-      }
-
-      window.clearTimeout(this.finalRenditionTimeout);
-
-      if (shouldDelay) {
-        var delay = (playlist.partTargetDuration || playlist.targetDuration) / 2 * 1000 || 5 * 1000;
-        this.finalRenditionTimeout = window.setTimeout(this.media.bind(this, playlist, false), delay);
-        return;
-      }
-
-      var startingState = this.state;
-      var mediaChange = !this.media_ || playlist.id !== this.media_.id;
-      var masterPlaylistRef = this.master.playlists[playlist.id]; // switch to fully loaded playlists immediately
-
-      if (masterPlaylistRef && masterPlaylistRef.endList || // handle the case of a playlist object (e.g., if using vhs-json with a resolved
-      // media playlist or, for the case of demuxed audio, a resolved audio media group)
-      playlist.endList && playlist.segments.length) {
-        // abort outstanding playlist requests
-        if (this.request) {
-          this.request.onreadystatechange = null;
-          this.request.abort();
-          this.request = null;
-        }
-
-        this.state = 'HAVE_METADATA';
-        this.media_ = playlist; // trigger media change if the active media has been updated
-
-        if (mediaChange) {
-          this.trigger('mediachanging');
-
-          if (startingState === 'HAVE_MASTER') {
-            // The initial playlist was a master manifest, and the first media selected was
-            // also provided (in the form of a resolved playlist object) as part of the
-            // source object (rather than just a URL). Therefore, since the media playlist
-            // doesn't need to be requested, loadedmetadata won't trigger as part of the
-            // normal flow, and needs an explicit trigger here.
-            this.trigger('loadedmetadata');
-          } else {
-            this.trigger('mediachange');
-          }
-        }
-
-        return;
-      } // We update/set the timeout here so that live playlists
-      // that are not a media change will "start" the loader as expected.
-      // We expect that this function will start the media update timeout
-      // cycle again. This also prevents a playlist switch failure from
-      // causing us to stall during live.
-
-
-      this.updateMediaUpdateTimeout_(refreshDelay(playlist, true)); // switching to the active playlist is a no-op
-
-      if (!mediaChange) {
-        return;
-      }
-
-      this.state = 'SWITCHING_MEDIA'; // there is already an outstanding playlist request
-
-      if (this.request) {
-        if (playlist.resolvedUri === this.request.url) {
-          // requesting to switch to the same playlist multiple times
-          // has no effect after the first
-          return;
-        }
-
-        this.request.onreadystatechange = null;
-        this.request.abort();
-        this.request = null;
-      } // request the new playlist
-
-
-      if (this.media_) {
-        this.trigger('mediachanging');
-      }
-
-      this.pendingMedia_ = playlist;
-      this.request = this.vhs_.xhr({
-        uri: playlist.resolvedUri,
-        withCredentials: this.withCredentials
-      }, function (error, req) {
-        // disposed
-        if (!_this4.request) {
-          return;
-        }
-
-        playlist.lastRequest = Date.now();
-        playlist.resolvedUri = resolveManifestRedirect(_this4.handleManifestRedirects, playlist.resolvedUri, req);
-
-        if (error) {
-          return _this4.playlistRequestError(_this4.request, playlist, startingState);
-        }
-
-        _this4.haveMetadata({
-          playlistString: req.responseText,
-          url: playlist.uri,
-          id: playlist.id
-        }); // fire loadedmetadata the first time a media playlist is loaded
-
-
-        if (startingState === 'HAVE_MASTER') {
-          _this4.trigger('loadedmetadata');
-        } else {
-          _this4.trigger('mediachange');
-        }
-      });
-    }
-    /**
-     * pause loading of the playlist
-     */
-    ;
-
-    _proto.pause = function pause() {
-      if (this.mediaUpdateTimeout) {
-        window.clearTimeout(this.mediaUpdateTimeout);
-        this.mediaUpdateTimeout = null;
-      }
-
-      this.stopRequest();
-
-      if (this.state === 'HAVE_NOTHING') {
-        // If we pause the loader before any data has been retrieved, its as if we never
-        // started, so reset to an unstarted state.
-        this.started = false;
-      } // Need to restore state now that no activity is happening
-
-
-      if (this.state === 'SWITCHING_MEDIA') {
-        // if the loader was in the process of switching media, it should either return to
-        // HAVE_MASTER or HAVE_METADATA depending on if the loader has loaded a media
-        // playlist yet. This is determined by the existence of loader.media_
-        if (this.media_) {
-          this.state = 'HAVE_METADATA';
-        } else {
-          this.state = 'HAVE_MASTER';
-        }
-      } else if (this.state === 'HAVE_CURRENT_METADATA') {
-        this.state = 'HAVE_METADATA';
-      }
-    }
-    /**
-     * start loading of the playlist
-     */
-    ;
-
-    _proto.load = function load(shouldDelay) {
-      var _this5 = this;
-
-      if (this.mediaUpdateTimeout) {
-        window.clearTimeout(this.mediaUpdateTimeout);
-        this.mediaUpdateTimeout = null;
-      }
-
-      var media = this.media();
-
-      if (shouldDelay) {
-        var delay = media ? (media.partTargetDuration || media.targetDuration) / 2 * 1000 : 5 * 1000;
-        this.mediaUpdateTimeout = window.setTimeout(function () {
-          _this5.mediaUpdateTimeout = null;
-
-          _this5.load();
-        }, delay);
-        return;
-      }
-
-      if (!this.started) {
-        this.start();
-        return;
-      }
-
-      if (media && !media.endList) {
-        this.trigger('mediaupdatetimeout');
-      } else {
-        this.trigger('loadedplaylist');
-      }
-    };
-
-    _proto.updateMediaUpdateTimeout_ = function updateMediaUpdateTimeout_(delay) {
-      var _this6 = this;
-
-      if (this.mediaUpdateTimeout) {
-        window.clearTimeout(this.mediaUpdateTimeout);
-        this.mediaUpdateTimeout = null;
-      } // we only have use mediaupdatetimeout for live playlists.
-
-
-      if (!this.media() || this.media().endList) {
-        return;
-      }
-
-      this.mediaUpdateTimeout = window.setTimeout(function () {
-        _this6.mediaUpdateTimeout = null;
-
-        _this6.trigger('mediaupdatetimeout');
-
-        _this6.updateMediaUpdateTimeout_(delay);
-      }, delay);
-    }
-    /**
-     * start loading of the playlist
-     */
-    ;
-
-    _proto.start = function start() {
-      var _this7 = this;
-
-      this.started = true;
-
-      if (typeof this.src === 'object') {
-        // in the case of an entirely constructed manifest object (meaning there's no actual
-        // manifest on a server), default the uri to the page's href
-        if (!this.src.uri) {
-          this.src.uri = window.location.href;
-        } // resolvedUri is added on internally after the initial request. Since there's no
-        // request for pre-resolved manifests, add on resolvedUri here.
-
-
-        this.src.resolvedUri = this.src.uri; // Since a manifest object was passed in as the source (instead of a URL), the first
-        // request can be skipped (since the top level of the manifest, at a minimum, is
-        // already available as a parsed manifest object). However, if the manifest object
-        // represents a master playlist, some media playlists may need to be resolved before
-        // the starting segment list is available. Therefore, go directly to setup of the
-        // initial playlist, and let the normal flow continue from there.
-        //
-        // Note that the call to setup is asynchronous, as other sections of VHS may assume
-        // that the first request is asynchronous.
-
-        setTimeout(function () {
-          _this7.setupInitialPlaylist(_this7.src);
-        }, 0);
-        return;
-      } // request the specified URL
-
-
-      this.request = this.vhs_.xhr({
-        uri: this.src,
-        withCredentials: this.withCredentials
-      }, function (error, req) {
-        // disposed
-        if (!_this7.request) {
-          return;
-        } // clear the loader's request reference
-
-
-        _this7.request = null;
-
-        if (error) {
-          _this7.error = {
-            status: req.status,
-            message: "HLS playlist request error at URL: " + _this7.src + ".",
-            responseText: req.responseText,
-            // MEDIA_ERR_NETWORK
-            code: 2
-          };
-
-          if (_this7.state === 'HAVE_NOTHING') {
-            _this7.started = false;
-          }
-
-          return _this7.trigger('error');
-        }
-
-        _this7.src = resolveManifestRedirect(_this7.handleManifestRedirects, _this7.src, req);
-
-        var manifest = _this7.parseManifest_({
-          manifestString: req.responseText,
-          url: _this7.src
-        });
-
-        _this7.setupInitialPlaylist(manifest);
-      });
-    };
-
-    _proto.srcUri = function srcUri() {
-      return typeof this.src === 'string' ? this.src : this.src.uri;
-    }
-    /**
-     * Given a manifest object that's either a master or media playlist, trigger the proper
-     * events and set the state of the playlist loader.
-     *
-     * If the manifest object represents a master playlist, `loadedplaylist` will be
-     * triggered to allow listeners to select a playlist. If none is selected, the loader
-     * will default to the first one in the playlists array.
-     *
-     * If the manifest object represents a media playlist, `loadedplaylist` will be
-     * triggered followed by `loadedmetadata`, as the only available playlist is loaded.
-     *
-     * In the case of a media playlist, a master playlist object wrapper with one playlist
-     * will be created so that all logic can handle playlists in the same fashion (as an
-     * assumed manifest object schema).
-     *
-     * @param {Object} manifest
-     *        The parsed manifest object
-     */
-    ;
-
-    _proto.setupInitialPlaylist = function setupInitialPlaylist(manifest) {
-      this.state = 'HAVE_MASTER';
-
-      if (manifest.playlists) {
-        this.master = manifest;
-        addPropertiesToMaster(this.master, this.srcUri()); // If the initial master playlist has playlists wtih segments already resolved,
-        // then resolve URIs in advance, as they are usually done after a playlist request,
-        // which may not happen if the playlist is resolved.
-
-        manifest.playlists.forEach(function (playlist) {
-          playlist.segments = getAllSegments(playlist);
-          playlist.segments.forEach(function (segment) {
-            resolveSegmentUris(segment, playlist.resolvedUri);
-          });
-        });
-        this.trigger('loadedplaylist');
-
-        if (!this.request) {
-          // no media playlist was specifically selected so start
-          // from the first listed one
-          this.media(this.master.playlists[0]);
-        }
-
-        return;
-      } // In order to support media playlists passed in as vhs-json, the case where the uri
-      // is not provided as part of the manifest should be considered, and an appropriate
-      // default used.
-
-
-      var uri = this.srcUri() || window.location.href;
-      this.master = masterForMedia(manifest, uri);
-      this.haveMetadata({
-        playlistObject: manifest,
-        url: uri,
-        id: this.master.playlists[0].id
-      });
-      this.trigger('loadedmetadata');
-    };
-
-    return PlaylistLoader;
-  }(EventTarget$1);
-  /**
-   * @file xhr.js
-   */
-
-
-  var videojsXHR = videojs.xhr,
-      mergeOptions$1 = videojs.mergeOptions;
-
-  var callbackWrapper = function callbackWrapper(request, error, response, callback) {
-    var reqResponse = request.responseType === 'arraybuffer' ? request.response : request.responseText;
-
-    if (!error && reqResponse) {
-      request.responseTime = Date.now();
-      request.roundTripTime = request.responseTime - request.requestTime;
-      request.bytesReceived = reqResponse.byteLength || reqResponse.length;
-
-      if (!request.bandwidth) {
-        request.bandwidth = Math.floor(request.bytesReceived / request.roundTripTime * 8 * 1000);
-      }
-    }
-
-    if (response.headers) {
-      request.responseHeaders = response.headers;
-    } // videojs.xhr now uses a specific code on the error
-    // object to signal that a request has timed out instead
-    // of setting a boolean on the request object
-
-
-    if (error && error.code === 'ETIMEDOUT') {
-      request.timedout = true;
-    } // videojs.xhr no longer considers status codes outside of 200 and 0
-    // (for file uris) to be errors, but the old XHR did, so emulate that
-    // behavior. Status 206 may be used in response to byterange requests.
-
-
-    if (!error && !request.aborted && response.statusCode !== 200 && response.statusCode !== 206 && response.statusCode !== 0) {
-      error = new Error('XHR Failed with a response of: ' + (request && (reqResponse || request.responseText)));
-    }
-
-    callback(error, request);
-  };
-
-  var xhrFactory = function xhrFactory() {
-    var xhr = function XhrFunction(options, callback) {
-      // Add a default timeout
-      options = mergeOptions$1({
-        timeout: 45e3
-      }, options); // Allow an optional user-specified function to modify the option
-      // object before we construct the xhr request
-
-      var beforeRequest = XhrFunction.beforeRequest || videojs.Vhs.xhr.beforeRequest;
-
-      if (beforeRequest && typeof beforeRequest === 'function') {
-        var newOptions = beforeRequest(options);
-
-        if (newOptions) {
-          options = newOptions;
-        }
-      } // Use the standard videojs.xhr() method unless `videojs.Vhs.xhr` has been overriden
-      // TODO: switch back to videojs.Vhs.xhr.name === 'XhrFunction' when we drop IE11
-
-
-      var xhrMethod = videojs.Vhs.xhr.original === true ? videojsXHR : videojs.Vhs.xhr;
-      var request = xhrMethod(options, function (error, response) {
-        return callbackWrapper(request, error, response, callback);
-      });
-      var originalAbort = request.abort;
-
-      request.abort = function () {
-        request.aborted = true;
-        return originalAbort.apply(request, arguments);
-      };
-
-      request.uri = options.uri;
-      request.requestTime = Date.now();
-      return request;
-    };
-
-    xhr.original = true;
-    return xhr;
-  };
-  /**
-   * Turns segment byterange into a string suitable for use in
-   * HTTP Range requests
-   *
-   * @param {Object} byterange - an object with two values defining the start and end
-   *                             of a byte-range
-   */
-
-
-  var byterangeStr = function byterangeStr(byterange) {
-    // `byterangeEnd` is one less than `offset + length` because the HTTP range
-    // header uses inclusive ranges
-    var byterangeEnd;
-    var byterangeStart = byterange.offset;
-
-    if (typeof byterange.offset === 'bigint' || typeof byterange.length === 'bigint') {
-      byterangeEnd = window.BigInt(byterange.offset) + window.BigInt(byterange.length) - window.BigInt(1);
-    } else {
-      byterangeEnd = byterange.offset + byterange.length - 1;
-    }
-
-    return 'bytes=' + byterangeStart + '-' + byterangeEnd;
-  };
-  /**
-   * Defines headers for use in the xhr request for a particular segment.
-   *
-   * @param {Object} segment - a simplified copy of the segmentInfo object
-   *                           from SegmentLoader
-   */
-
-
-  var segmentXhrHeaders = function segmentXhrHeaders(segment) {
-    var headers = {};
-
-    if (segment.byterange) {
-      headers.Range = byterangeStr(segment.byterange);
-    }
-
-    return headers;
-  };
-  /**
-   * @file bin-utils.js
-   */
-
-  /**
-   * convert a TimeRange to text
-   *
-   * @param {TimeRange} range the timerange to use for conversion
-   * @param {number} i the iterator on the range to convert
-   * @return {string} the range in string format
-   */
-
-
-  var textRange = function textRange(range, i) {
-    return range.start(i) + '-' + range.end(i);
-  };
-  /**
-   * format a number as hex string
-   *
-   * @param {number} e The number
-   * @param {number} i the iterator
-   * @return {string} the hex formatted number as a string
-   */
-
-
-  var formatHexString = function formatHexString(e, i) {
-    var value = e.toString(16);
-    return '00'.substring(0, 2 - value.length) + value + (i % 2 ? ' ' : '');
-  };
-
-  var formatAsciiString = function formatAsciiString(e) {
-    if (e >= 0x20 && e < 0x7e) {
-      return String.fromCharCode(e);
-    }
-
-    return '.';
-  };
-  /**
-   * Creates an object for sending to a web worker modifying properties that are TypedArrays
-   * into a new object with seperated properties for the buffer, byteOffset, and byteLength.
-   *
-   * @param {Object} message
-   *        Object of properties and values to send to the web worker
-   * @return {Object}
-   *         Modified message with TypedArray values expanded
-   * @function createTransferableMessage
-   */
-
-
-  var createTransferableMessage = function createTransferableMessage(message) {
-    var transferable = {};
-    Object.keys(message).forEach(function (key) {
-      var value = message[key];
-
-      if (isArrayBufferView(value)) {
-        transferable[key] = {
-          bytes: value.buffer,
-          byteOffset: value.byteOffset,
-          byteLength: value.byteLength
-        };
-      } else {
-        transferable[key] = value;
-      }
-    });
-    return transferable;
-  };
-  /**
-   * Returns a unique string identifier for a media initialization
-   * segment.
-   *
-   * @param {Object} initSegment
-   *        the init segment object.
-   *
-   * @return {string} the generated init segment id
-   */
-
-
-  var initSegmentId = function initSegmentId(initSegment) {
-    var byterange = initSegment.byterange || {
-      length: Infinity,
-      offset: 0
-    };
-    return [byterange.length, byterange.offset, initSegment.resolvedUri].join(',');
-  };
-  /**
-   * Returns a unique string identifier for a media segment key.
-   *
-   * @param {Object} key the encryption key
-   * @return {string} the unique id for the media segment key.
-   */
-
-
-  var segmentKeyId = function segmentKeyId(key) {
-    return key.resolvedUri;
-  };
-  /**
-   * utils to help dump binary data to the console
-   *
-   * @param {Array|TypedArray} data
-   *        data to dump to a string
-   *
-   * @return {string} the data as a hex string.
-   */
-
-
-  var hexDump = function hexDump(data) {
-    var bytes = Array.prototype.slice.call(data);
-    var step = 16;
-    var result = '';
-    var hex;
-    var ascii;
-
-    for (var j = 0; j < bytes.length / step; j++) {
-      hex = bytes.slice(j * step, j * step + step).map(formatHexString).join('');
-      ascii = bytes.slice(j * step, j * step + step).map(formatAsciiString).join('');
-      result += hex + ' ' + ascii + '\n';
-    }
-
-    return result;
-  };
-
-  var tagDump = function tagDump(_ref) {
-    var bytes = _ref.bytes;
-    return hexDump(bytes);
-  };
-
-  var textRanges = function textRanges(ranges) {
-    var result = '';
-    var i;
-
-    for (i = 0; i < ranges.length; i++) {
-      result += textRange(ranges, i) + ' ';
-    }
-
-    return result;
-  };
-
-  var utils = /*#__PURE__*/Object.freeze({
-    __proto__: null,
-    createTransferableMessage: createTransferableMessage,
-    initSegmentId: initSegmentId,
-    segmentKeyId: segmentKeyId,
-    hexDump: hexDump,
-    tagDump: tagDump,
-    textRanges: textRanges
-  }); // TODO handle fmp4 case where the timing info is accurate and doesn't involve transmux
-  // 25% was arbitrarily chosen, and may need to be refined over time.
-
-  var SEGMENT_END_FUDGE_PERCENT = 0.25;
-  /**
-   * Converts a player time (any time that can be gotten/set from player.currentTime(),
-   * e.g., any time within player.seekable().start(0) to player.seekable().end(0)) to a
-   * program time (any time referencing the real world (e.g., EXT-X-PROGRAM-DATE-TIME)).
-   *
-   * The containing segment is required as the EXT-X-PROGRAM-DATE-TIME serves as an "anchor
-   * point" (a point where we have a mapping from program time to player time, with player
-   * time being the post transmux start of the segment).
-   *
-   * For more details, see [this doc](../../docs/program-time-from-player-time.md).
-   *
-   * @param {number} playerTime the player time
-   * @param {Object} segment the segment which contains the player time
-   * @return {Date} program time
-   */
-
-  var playerTimeToProgramTime = function playerTimeToProgramTime(playerTime, segment) {
-    if (!segment.dateTimeObject) {
-      // Can't convert without an "anchor point" for the program time (i.e., a time that can
-      // be used to map the start of a segment with a real world time).
-      return null;
-    }
-
-    var transmuxerPrependedSeconds = segment.videoTimingInfo.transmuxerPrependedSeconds;
-    var transmuxedStart = segment.videoTimingInfo.transmuxedPresentationStart; // get the start of the content from before old content is prepended
-
-    var startOfSegment = transmuxedStart + transmuxerPrependedSeconds;
-    var offsetFromSegmentStart = playerTime - startOfSegment;
-    return new Date(segment.dateTimeObject.getTime() + offsetFromSegmentStart * 1000);
-  };
-
-  var originalSegmentVideoDuration = function originalSegmentVideoDuration(videoTimingInfo) {
-    return videoTimingInfo.transmuxedPresentationEnd - videoTimingInfo.transmuxedPresentationStart - videoTimingInfo.transmuxerPrependedSeconds;
-  };
-  /**
-   * Finds a segment that contains the time requested given as an ISO-8601 string. The
-   * returned segment might be an estimate or an accurate match.
-   *
-   * @param {string} programTime The ISO-8601 programTime to find a match for
-   * @param {Object} playlist A playlist object to search within
-   */
-
-
-  var findSegmentForProgramTime = function findSegmentForProgramTime(programTime, playlist) {
-    // Assumptions:
-    //  - verifyProgramDateTimeTags has already been run
-    //  - live streams have been started
-    var dateTimeObject;
-
-    try {
-      dateTimeObject = new Date(programTime);
-    } catch (e) {
-      return null;
-    }
-
-    if (!playlist || !playlist.segments || playlist.segments.length === 0) {
-      return null;
-    }
-
-    var segment = playlist.segments[0];
-
-    if (dateTimeObject < segment.dateTimeObject) {
-      // Requested time is before stream start.
-      return null;
-    }
-
-    for (var i = 0; i < playlist.segments.length - 1; i++) {
-      segment = playlist.segments[i];
-      var nextSegmentStart = playlist.segments[i + 1].dateTimeObject;
-
-      if (dateTimeObject < nextSegmentStart) {
-        break;
-      }
-    }
-
-    var lastSegment = playlist.segments[playlist.segments.length - 1];
-    var lastSegmentStart = lastSegment.dateTimeObject;
-    var lastSegmentDuration = lastSegment.videoTimingInfo ? originalSegmentVideoDuration(lastSegment.videoTimingInfo) : lastSegment.duration + lastSegment.duration * SEGMENT_END_FUDGE_PERCENT;
-    var lastSegmentEnd = new Date(lastSegmentStart.getTime() + lastSegmentDuration * 1000);
-
-    if (dateTimeObject > lastSegmentEnd) {
-      // Beyond the end of the stream, or our best guess of the end of the stream.
-      return null;
-    }
-
-    if (dateTimeObject > lastSegmentStart) {
-      segment = lastSegment;
-    }
-
-    return {
-      segment: segment,
-      estimatedStart: segment.videoTimingInfo ? segment.videoTimingInfo.transmuxedPresentationStart : Playlist.duration(playlist, playlist.mediaSequence + playlist.segments.indexOf(segment)),
-      // Although, given that all segments have accurate date time objects, the segment
-      // selected should be accurate, unless the video has been transmuxed at some point
-      // (determined by the presence of the videoTimingInfo object), the segment's "player
-      // time" (the start time in the player) can't be considered accurate.
-      type: segment.videoTimingInfo ? 'accurate' : 'estimate'
-    };
-  };
-  /**
-   * Finds a segment that contains the given player time(in seconds).
-   *
-   * @param {number} time The player time to find a match for
-   * @param {Object} playlist A playlist object to search within
-   */
-
-
-  var findSegmentForPlayerTime = function findSegmentForPlayerTime(time, playlist) {
-    // Assumptions:
-    // - there will always be a segment.duration
-    // - we can start from zero
-    // - segments are in time order
-    if (!playlist || !playlist.segments || playlist.segments.length === 0) {
-      return null;
-    }
-
-    var segmentEnd = 0;
-    var segment;
-
-    for (var i = 0; i < playlist.segments.length; i++) {
-      segment = playlist.segments[i]; // videoTimingInfo is set after the segment is downloaded and transmuxed, and
-      // should contain the most accurate values we have for the segment's player times.
-      //
-      // Use the accurate transmuxedPresentationEnd value if it is available, otherwise fall
-      // back to an estimate based on the manifest derived (inaccurate) segment.duration, to
-      // calculate an end value.
-
-      segmentEnd = segment.videoTimingInfo ? segment.videoTimingInfo.transmuxedPresentationEnd : segmentEnd + segment.duration;
-
-      if (time <= segmentEnd) {
-        break;
-      }
-    }
-
-    var lastSegment = playlist.segments[playlist.segments.length - 1];
-
-    if (lastSegment.videoTimingInfo && lastSegment.videoTimingInfo.transmuxedPresentationEnd < time) {
-      // The time requested is beyond the stream end.
-      return null;
-    }
-
-    if (time > segmentEnd) {
-      // The time is within or beyond the last segment.
-      //
-      // Check to see if the time is beyond a reasonable guess of the end of the stream.
-      if (time > segmentEnd + lastSegment.duration * SEGMENT_END_FUDGE_PERCENT) {
-        // Technically, because the duration value is only an estimate, the time may still
-        // exist in the last segment, however, there isn't enough information to make even
-        // a reasonable estimate.
-        return null;
-      }
-
-      segment = lastSegment;
-    }
-
-    return {
-      segment: segment,
-      estimatedStart: segment.videoTimingInfo ? segment.videoTimingInfo.transmuxedPresentationStart : segmentEnd - segment.duration,
-      // Because videoTimingInfo is only set after transmux, it is the only way to get
-      // accurate timing values.
-      type: segment.videoTimingInfo ? 'accurate' : 'estimate'
-    };
-  };
-  /**
-   * Gives the offset of the comparisonTimestamp from the programTime timestamp in seconds.
-   * If the offset returned is positive, the programTime occurs after the
-   * comparisonTimestamp.
-   * If the offset is negative, the programTime occurs before the comparisonTimestamp.
-   *
-   * @param {string} comparisonTimeStamp An ISO-8601 timestamp to compare against
-   * @param {string} programTime The programTime as an ISO-8601 string
-   * @return {number} offset
-   */
-
-
-  var getOffsetFromTimestamp = function getOffsetFromTimestamp(comparisonTimeStamp, programTime) {
-    var segmentDateTime;
-    var programDateTime;
-
-    try {
-      segmentDateTime = new Date(comparisonTimeStamp);
-      programDateTime = new Date(programTime);
-    } catch (e) {// TODO handle error
-    }
-
-    var segmentTimeEpoch = segmentDateTime.getTime();
-    var programTimeEpoch = programDateTime.getTime();
-    return (programTimeEpoch - segmentTimeEpoch) / 1000;
-  };
-  /**
-   * Checks that all segments in this playlist have programDateTime tags.
-   *
-   * @param {Object} playlist A playlist object
-   */
-
-
-  var verifyProgramDateTimeTags = function verifyProgramDateTimeTags(playlist) {
-    if (!playlist.segments || playlist.segments.length === 0) {
-      return false;
-    }
-
-    for (var i = 0; i < playlist.segments.length; i++) {
-      var segment = playlist.segments[i];
-
-      if (!segment.dateTimeObject) {
-        return false;
-      }
-    }
-
-    return true;
-  };
-  /**
-   * Returns the programTime of the media given a playlist and a playerTime.
-   * The playlist must have programDateTime tags for a programDateTime tag to be returned.
-   * If the segments containing the time requested have not been buffered yet, an estimate
-   * may be returned to the callback.
-   *
-   * @param {Object} args
-   * @param {Object} args.playlist A playlist object to search within
-   * @param {number} time A playerTime in seconds
-   * @param {Function} callback(err, programTime)
-   * @return {string} err.message A detailed error message
-   * @return {Object} programTime
-   * @return {number} programTime.mediaSeconds The streamTime in seconds
-   * @return {string} programTime.programDateTime The programTime as an ISO-8601 String
-   */
-
-
-  var getProgramTime = function getProgramTime(_ref) {
-    var playlist = _ref.playlist,
-        _ref$time = _ref.time,
-        time = _ref$time === void 0 ? undefined : _ref$time,
-        callback = _ref.callback;
-
-    if (!callback) {
-      throw new Error('getProgramTime: callback must be provided');
-    }
-
-    if (!playlist || time === undefined) {
-      return callback({
-        message: 'getProgramTime: playlist and time must be provided'
-      });
-    }
-
-    var matchedSegment = findSegmentForPlayerTime(time, playlist);
-
-    if (!matchedSegment) {
-      return callback({
-        message: 'valid programTime was not found'
-      });
-    }
-
-    if (matchedSegment.type === 'estimate') {
-      return callback({
-        message: 'Accurate programTime could not be determined.' + ' Please seek to e.seekTime and try again',
-        seekTime: matchedSegment.estimatedStart
-      });
-    }
-
-    var programTimeObject = {
-      mediaSeconds: time
-    };
-    var programTime = playerTimeToProgramTime(time, matchedSegment.segment);
-
-    if (programTime) {
-      programTimeObject.programDateTime = programTime.toISOString();
-    }
-
-    return callback(null, programTimeObject);
-  };
-  /**
-   * Seeks in the player to a time that matches the given programTime ISO-8601 string.
-   *
-   * @param {Object} args
-   * @param {string} args.programTime A programTime to seek to as an ISO-8601 String
-   * @param {Object} args.playlist A playlist to look within
-   * @param {number} args.retryCount The number of times to try for an accurate seek. Default is 2.
-   * @param {Function} args.seekTo A method to perform a seek
-   * @param {boolean} args.pauseAfterSeek Whether to end in a paused state after seeking. Default is true.
-   * @param {Object} args.tech The tech to seek on
-   * @param {Function} args.callback(err, newTime) A callback to return the new time to
-   * @return {string} err.message A detailed error message
-   * @return {number} newTime The exact time that was seeked to in seconds
-   */
-
-
-  var seekToProgramTime = function seekToProgramTime(_ref2) {
-    var programTime = _ref2.programTime,
-        playlist = _ref2.playlist,
-        _ref2$retryCount = _ref2.retryCount,
-        retryCount = _ref2$retryCount === void 0 ? 2 : _ref2$retryCount,
-        seekTo = _ref2.seekTo,
-        _ref2$pauseAfterSeek = _ref2.pauseAfterSeek,
-        pauseAfterSeek = _ref2$pauseAfterSeek === void 0 ? true : _ref2$pauseAfterSeek,
-        tech = _ref2.tech,
-        callback = _ref2.callback;
-
-    if (!callback) {
-      throw new Error('seekToProgramTime: callback must be provided');
-    }
-
-    if (typeof programTime === 'undefined' || !playlist || !seekTo) {
-      return callback({
-        message: 'seekToProgramTime: programTime, seekTo and playlist must be provided'
-      });
-    }
-
-    if (!playlist.endList && !tech.hasStarted_) {
-      return callback({
-        message: 'player must be playing a live stream to start buffering'
-      });
-    }
-
-    if (!verifyProgramDateTimeTags(playlist)) {
-      return callback({
-        message: 'programDateTime tags must be provided in the manifest ' + playlist.resolvedUri
-      });
-    }
-
-    var matchedSegment = findSegmentForProgramTime(programTime, playlist); // no match
-
-    if (!matchedSegment) {
-      return callback({
-        message: programTime + " was not found in the stream"
-      });
-    }
-
-    var segment = matchedSegment.segment;
-    var mediaOffset = getOffsetFromTimestamp(segment.dateTimeObject, programTime);
-
-    if (matchedSegment.type === 'estimate') {
-      // we've run out of retries
-      if (retryCount === 0) {
-        return callback({
-          message: programTime + " is not buffered yet. Try again"
-        });
-      }
-
-      seekTo(matchedSegment.estimatedStart + mediaOffset);
-      tech.one('seeked', function () {
-        seekToProgramTime({
-          programTime: programTime,
-          playlist: playlist,
-          retryCount: retryCount - 1,
-          seekTo: seekTo,
-          pauseAfterSeek: pauseAfterSeek,
-          tech: tech,
-          callback: callback
-        });
-      });
-      return;
-    } // Since the segment.start value is determined from the buffered end or ending time
-    // of the prior segment, the seekToTime doesn't need to account for any transmuxer
-    // modifications.
-
-
-    var seekToTime = segment.start + mediaOffset;
-
-    var seekedCallback = function seekedCallback() {
-      return callback(null, tech.currentTime());
-    }; // listen for seeked event
-
-
-    tech.one('seeked', seekedCallback); // pause before seeking as video.js will restore this state
-
-    if (pauseAfterSeek) {
-      tech.pause();
-    }
-
-    seekTo(seekToTime);
-  }; // which will only happen if the request is complete.
-
-
-  var callbackOnCompleted = function callbackOnCompleted(request, cb) {
-    if (request.readyState === 4) {
-      return cb();
-    }
-
-    return;
-  };
-
-  var containerRequest = function containerRequest(uri, xhr, cb) {
-    var bytes = [];
-    var id3Offset;
-    var finished = false;
-
-    var endRequestAndCallback = function endRequestAndCallback(err, req, type, _bytes) {
-      req.abort();
-      finished = true;
-      return cb(err, req, type, _bytes);
-    };
-
-    var progressListener = function progressListener(error, request) {
-      if (finished) {
-        return;
-      }
-
-      if (error) {
-        return endRequestAndCallback(error, request, '', bytes);
-      } // grap the new part of content that was just downloaded
-
-
-      var newPart = request.responseText.substring(bytes && bytes.byteLength || 0, request.responseText.length); // add that onto bytes
-
-      bytes = concatTypedArrays(bytes, stringToBytes(newPart, true));
-      id3Offset = id3Offset || getId3Offset(bytes); // we need at least 10 bytes to determine a type
-      // or we need at least two bytes after an id3Offset
-
-      if (bytes.length < 10 || id3Offset && bytes.length < id3Offset + 2) {
-        return callbackOnCompleted(request, function () {
-          return endRequestAndCallback(error, request, '', bytes);
-        });
-      }
-
-      var type = detectContainerForBytes(bytes); // if this looks like a ts segment but we don't have enough data
-      // to see the second sync byte, wait until we have enough data
-      // before declaring it ts
-
-      if (type === 'ts' && bytes.length < 188) {
-        return callbackOnCompleted(request, function () {
-          return endRequestAndCallback(error, request, '', bytes);
-        });
-      } // this may be an unsynced ts segment
-      // wait for 376 bytes before detecting no container
-
-
-      if (!type && bytes.length < 376) {
-        return callbackOnCompleted(request, function () {
-          return endRequestAndCallback(error, request, '', bytes);
-        });
-      }
-
-      return endRequestAndCallback(null, request, type, bytes);
-    };
-
-    var options = {
-      uri: uri,
-      beforeSend: function beforeSend(request) {
-        // this forces the browser to pass the bytes to us unprocessed
-        request.overrideMimeType('text/plain; charset=x-user-defined');
-        request.addEventListener('progress', function (_ref) {
-          _ref.total;
-          _ref.loaded;
-          return callbackWrapper(request, null, {
-            statusCode: request.status
-          }, progressListener);
-        });
-      }
-    };
-    var request = xhr(options, function (error, response) {
-      return callbackWrapper(request, error, response, progressListener);
-    });
-    return request;
-  };
-
-  var EventTarget = videojs.EventTarget,
-      mergeOptions = videojs.mergeOptions;
-
-  var dashPlaylistUnchanged = function dashPlaylistUnchanged(a, b) {
-    if (!isPlaylistUnchanged(a, b)) {
-      return false;
-    } // for dash the above check will often return true in scenarios where
-    // the playlist actually has changed because mediaSequence isn't a
-    // dash thing, and we often set it to 1. So if the playlists have the same amount
-    // of segments we return true.
-    // So for dash we need to make sure that the underlying segments are different.
-    // if sidx changed then the playlists are different.
-
-
-    if (a.sidx && b.sidx && (a.sidx.offset !== b.sidx.offset || a.sidx.length !== b.sidx.length)) {
-      return false;
-    } else if (!a.sidx && b.sidx || a.sidx && !b.sidx) {
-      return false;
-    } // one or the other does not have segments
-    // there was a change.
-
-
-    if (a.segments && !b.segments || !a.segments && b.segments) {
-      return false;
-    } // neither has segments nothing changed
-
-
-    if (!a.segments && !b.segments) {
-      return true;
-    } // check segments themselves
-
-
-    for (var i = 0; i < a.segments.length; i++) {
-      var aSegment = a.segments[i];
-      var bSegment = b.segments[i]; // if uris are different between segments there was a change
-
-      if (aSegment.uri !== bSegment.uri) {
-        return false;
-      } // neither segment has a byterange, there will be no byterange change.
-
-
-      if (!aSegment.byterange && !bSegment.byterange) {
-        continue;
-      }
-
-      var aByterange = aSegment.byterange;
-      var bByterange = bSegment.byterange; // if byterange only exists on one of the segments, there was a change.
-
-      if (aByterange && !bByterange || !aByterange && bByterange) {
-        return false;
-      } // if both segments have byterange with different offsets, there was a change.
-
-
-      if (aByterange.offset !== bByterange.offset || aByterange.length !== bByterange.length) {
-        return false;
-      }
-    } // if everything was the same with segments, this is the same playlist.
-
-
-    return true;
-  };
-  /**
-   * Parses the master XML string and updates playlist URI references.
-   *
-   * @param {Object} config
-   *        Object of arguments
-   * @param {string} config.masterXml
-   *        The mpd XML
-   * @param {string} config.srcUrl
-   *        The mpd URL
-   * @param {Date} config.clientOffset
-   *         A time difference between server and client
-   * @param {Object} config.sidxMapping
-   *        SIDX mappings for moof/mdat URIs and byte ranges
-   * @return {Object}
-   *         The parsed mpd manifest object
-   */
-
-
-  var parseMasterXml = function parseMasterXml(_ref) {
-    var masterXml = _ref.masterXml,
-        srcUrl = _ref.srcUrl,
-        clientOffset = _ref.clientOffset,
-        sidxMapping = _ref.sidxMapping,
-        previousManifest = _ref.previousManifest;
-    var manifest = parse(masterXml, {
-      manifestUri: srcUrl,
-      clientOffset: clientOffset,
-      sidxMapping: sidxMapping,
-      previousManifest: previousManifest
-    });
-    addPropertiesToMaster(manifest, srcUrl);
-    return manifest;
-  };
-  /**
-   * Returns a new master manifest that is the result of merging an updated master manifest
-   * into the original version.
-   *
-   * @param {Object} oldMaster
-   *        The old parsed mpd object
-   * @param {Object} newMaster
-   *        The updated parsed mpd object
-   * @return {Object}
-   *         A new object representing the original master manifest with the updated media
-   *         playlists merged in
-   */
-
-
-  var updateMaster = function updateMaster(oldMaster, newMaster, sidxMapping) {
-    var noChanges = true;
-    var update = mergeOptions(oldMaster, {
-      // These are top level properties that can be updated
-      duration: newMaster.duration,
-      minimumUpdatePeriod: newMaster.minimumUpdatePeriod,
-      timelineStarts: newMaster.timelineStarts
-    }); // First update the playlists in playlist list
-
-    for (var i = 0; i < newMaster.playlists.length; i++) {
-      var playlist = newMaster.playlists[i];
-
-      if (playlist.sidx) {
-        var sidxKey = generateSidxKey(playlist.sidx); // add sidx segments to the playlist if we have all the sidx info already
-
-        if (sidxMapping && sidxMapping[sidxKey] && sidxMapping[sidxKey].sidx) {
-          addSidxSegmentsToPlaylist$1(playlist, sidxMapping[sidxKey].sidx, playlist.sidx.resolvedUri);
-        }
-      }
-
-      var playlistUpdate = updateMaster$1(update, playlist, dashPlaylistUnchanged);
-
-      if (playlistUpdate) {
-        update = playlistUpdate;
-        noChanges = false;
-      }
-    } // Then update media group playlists
-
-
-    forEachMediaGroup(newMaster, function (properties, type, group, label) {
-      if (properties.playlists && properties.playlists.length) {
-        var id = properties.playlists[0].id;
-
-        var _playlistUpdate = updateMaster$1(update, properties.playlists[0], dashPlaylistUnchanged);
-
-        if (_playlistUpdate) {
-          update = _playlistUpdate; // update the playlist reference within media groups
-
-          update.mediaGroups[type][group][label].playlists[0] = update.playlists[id];
-          noChanges = false;
-        }
-      }
-    });
-
-    if (newMaster.minimumUpdatePeriod !== oldMaster.minimumUpdatePeriod) {
-      noChanges = false;
-    }
-
-    if (noChanges) {
-      return null;
-    }
-
-    return update;
-  }; // SIDX should be equivalent if the URI and byteranges of the SIDX match.
-  // If the SIDXs have maps, the two maps should match,
-  // both `a` and `b` missing SIDXs is considered matching.
-  // If `a` or `b` but not both have a map, they aren't matching.
-
-
-  var equivalentSidx = function equivalentSidx(a, b) {
-    var neitherMap = Boolean(!a.map && !b.map);
-    var equivalentMap = neitherMap || Boolean(a.map && b.map && a.map.byterange.offset === b.map.byterange.offset && a.map.byterange.length === b.map.byterange.length);
-    return equivalentMap && a.uri === b.uri && a.byterange.offset === b.byterange.offset && a.byterange.length === b.byterange.length;
-  }; // exported for testing
-
-
-  var compareSidxEntry = function compareSidxEntry(playlists, oldSidxMapping) {
-    var newSidxMapping = {};
-
-    for (var id in playlists) {
-      var playlist = playlists[id];
-      var currentSidxInfo = playlist.sidx;
-
-      if (currentSidxInfo) {
-        var key = generateSidxKey(currentSidxInfo);
-
-        if (!oldSidxMapping[key]) {
-          break;
-        }
-
-        var savedSidxInfo = oldSidxMapping[key].sidxInfo;
-
-        if (equivalentSidx(savedSidxInfo, currentSidxInfo)) {
-          newSidxMapping[key] = oldSidxMapping[key];
-        }
-      }
-    }
-
-    return newSidxMapping;
-  };
-  /**
-   *  A function that filters out changed items as they need to be requested separately.
-   *
-   *  The method is exported for testing
-   *
-   *  @param {Object} master the parsed mpd XML returned via mpd-parser
-   *  @param {Object} oldSidxMapping the SIDX to compare against
-   */
-
-
-  var filterChangedSidxMappings = function filterChangedSidxMappings(master, oldSidxMapping) {
-    var videoSidx = compareSidxEntry(master.playlists, oldSidxMapping);
-    var mediaGroupSidx = videoSidx;
-    forEachMediaGroup(master, function (properties, mediaType, groupKey, labelKey) {
-      if (properties.playlists && properties.playlists.length) {
-        var playlists = properties.playlists;
-        mediaGroupSidx = mergeOptions(mediaGroupSidx, compareSidxEntry(playlists, oldSidxMapping));
-      }
-    });
-    return mediaGroupSidx;
-  };
-
-  var DashPlaylistLoader = /*#__PURE__*/function (_EventTarget) {
-    inheritsLoose(DashPlaylistLoader, _EventTarget); // DashPlaylistLoader must accept either a src url or a playlist because subsequent
-    // playlist loader setups from media groups will expect to be able to pass a playlist
-    // (since there aren't external URLs to media playlists with DASH)
-
-
-    function DashPlaylistLoader(srcUrlOrPlaylist, vhs, options, masterPlaylistLoader) {
-      var _this;
-
-      if (options === void 0) {
-        options = {};
-      }
-
-      _this = _EventTarget.call(this) || this;
-      _this.masterPlaylistLoader_ = masterPlaylistLoader || assertThisInitialized(_this);
-
-      if (!masterPlaylistLoader) {
-        _this.isMaster_ = true;
-      }
-
-      var _options = options,
-          _options$withCredenti = _options.withCredentials,
-          withCredentials = _options$withCredenti === void 0 ? false : _options$withCredenti,
-          _options$handleManife = _options.handleManifestRedirects,
-          handleManifestRedirects = _options$handleManife === void 0 ? false : _options$handleManife;
-      _this.vhs_ = vhs;
-      _this.withCredentials = withCredentials;
-      _this.handleManifestRedirects = handleManifestRedirects;
-
-      if (!srcUrlOrPlaylist) {
-        throw new Error('A non-empty playlist URL or object is required');
-      } // event naming?
-
-
-      _this.on('minimumUpdatePeriod', function () {
-        _this.refreshXml_();
-      }); // live playlist staleness timeout
-
-
-      _this.on('mediaupdatetimeout', function () {
-        _this.refreshMedia_(_this.media().id);
-      });
-
-      _this.state = 'HAVE_NOTHING';
-      _this.loadedPlaylists_ = {};
-      _this.logger_ = logger('DashPlaylistLoader'); // initialize the loader state
-      // The masterPlaylistLoader will be created with a string
-
-      if (_this.isMaster_) {
-        _this.masterPlaylistLoader_.srcUrl = srcUrlOrPlaylist; // TODO: reset sidxMapping between period changes
-        // once multi-period is refactored
-
-        _this.masterPlaylistLoader_.sidxMapping_ = {};
-      } else {
-        _this.childPlaylist_ = srcUrlOrPlaylist;
-      }
-
-      return _this;
-    }
-
-    var _proto = DashPlaylistLoader.prototype;
-
-    _proto.requestErrored_ = function requestErrored_(err, request, startingState) {
-      // disposed
-      if (!this.request) {
-        return true;
-      } // pending request is cleared
-
-
-      this.request = null;
-
-      if (err) {
-        // use the provided error object or create one
-        // based on the request/response
-        this.error = typeof err === 'object' && !(err instanceof Error) ? err : {
-          status: request.status,
-          message: 'DASH request error at URL: ' + request.uri,
-          response: request.response,
-          // MEDIA_ERR_NETWORK
-          code: 2
-        };
-
-        if (startingState) {
-          this.state = startingState;
-        }
-
-        this.trigger('error');
-        return true;
-      }
-    }
-    /**
-     * Verify that the container of the sidx segment can be parsed
-     * and if it can, get and parse that segment.
-     */
-    ;
-
-    _proto.addSidxSegments_ = function addSidxSegments_(playlist, startingState, cb) {
-      var _this2 = this;
-
-      var sidxKey = playlist.sidx && generateSidxKey(playlist.sidx); // playlist lacks sidx or sidx segments were added to this playlist already.
-
-      if (!playlist.sidx || !sidxKey || this.masterPlaylistLoader_.sidxMapping_[sidxKey]) {
-        // keep this function async
-        this.mediaRequest_ = window.setTimeout(function () {
-          return cb(false);
-        }, 0);
-        return;
-      } // resolve the segment URL relative to the playlist
-
-
-      var uri = resolveManifestRedirect(this.handleManifestRedirects, playlist.sidx.resolvedUri);
-
-      var fin = function fin(err, request) {
-        if (_this2.requestErrored_(err, request, startingState)) {
-          return;
-        }
-
-        var sidxMapping = _this2.masterPlaylistLoader_.sidxMapping_;
-        var sidx;
-
-        try {
-          sidx = parseSidx_1(toUint8(request.response).subarray(8));
-        } catch (e) {
-          // sidx parsing failed.
-          _this2.requestErrored_(e, request, startingState);
-
-          return;
-        }
-
-        sidxMapping[sidxKey] = {
-          sidxInfo: playlist.sidx,
-          sidx: sidx
-        };
-        addSidxSegmentsToPlaylist$1(playlist, sidx, playlist.sidx.resolvedUri);
-        return cb(true);
-      };
-
-      this.request = containerRequest(uri, this.vhs_.xhr, function (err, request, container, bytes) {
-        if (err) {
-          return fin(err, request);
-        }
-
-        if (!container || container !== 'mp4') {
-          return fin({
-            status: request.status,
-            message: "Unsupported " + (container || 'unknown') + " container type for sidx segment at URL: " + uri,
-            // response is just bytes in this case
-            // but we really don't want to return that.
-            response: '',
-            playlist: playlist,
-            internal: true,
-            blacklistDuration: Infinity,
-            // MEDIA_ERR_NETWORK
-            code: 2
-          }, request);
-        } // if we already downloaded the sidx bytes in the container request, use them
-
-
-        var _playlist$sidx$bytera = playlist.sidx.byterange,
-            offset = _playlist$sidx$bytera.offset,
-            length = _playlist$sidx$bytera.length;
-
-        if (bytes.length >= length + offset) {
-          return fin(err, {
-            response: bytes.subarray(offset, offset + length),
-            status: request.status,
-            uri: request.uri
-          });
-        } // otherwise request sidx bytes
-
-
-        _this2.request = _this2.vhs_.xhr({
-          uri: uri,
-          responseType: 'arraybuffer',
-          headers: segmentXhrHeaders({
-            byterange: playlist.sidx.byterange
-          })
-        }, fin);
-      });
-    };
-
-    _proto.dispose = function dispose() {
-      this.trigger('dispose');
-      this.stopRequest();
-      this.loadedPlaylists_ = {};
-      window.clearTimeout(this.minimumUpdatePeriodTimeout_);
-      window.clearTimeout(this.mediaRequest_);
-      window.clearTimeout(this.mediaUpdateTimeout);
-      this.mediaUpdateTimeout = null;
-      this.mediaRequest_ = null;
-      this.minimumUpdatePeriodTimeout_ = null;
-
-      if (this.masterPlaylistLoader_.createMupOnMedia_) {
-        this.off('loadedmetadata', this.masterPlaylistLoader_.createMupOnMedia_);
-        this.masterPlaylistLoader_.createMupOnMedia_ = null;
-      }
-
-      this.off();
-    };
-
-    _proto.hasPendingRequest = function hasPendingRequest() {
-      return this.request || this.mediaRequest_;
-    };
-
-    _proto.stopRequest = function stopRequest() {
-      if (this.request) {
-        var oldRequest = this.request;
-        this.request = null;
-        oldRequest.onreadystatechange = null;
-        oldRequest.abort();
-      }
-    };
-
-    _proto.media = function media(playlist) {
-      var _this3 = this; // getter
-
-
-      if (!playlist) {
-        return this.media_;
-      } // setter
-
-
-      if (this.state === 'HAVE_NOTHING') {
-        throw new Error('Cannot switch media playlist from ' + this.state);
-      }
-
-      var startingState = this.state; // find the playlist object if the target playlist has been specified by URI
-
-      if (typeof playlist === 'string') {
-        if (!this.masterPlaylistLoader_.master.playlists[playlist]) {
-          throw new Error('Unknown playlist URI: ' + playlist);
-        }
-
-        playlist = this.masterPlaylistLoader_.master.playlists[playlist];
-      }
-
-      var mediaChange = !this.media_ || playlist.id !== this.media_.id; // switch to previously loaded playlists immediately
-
-      if (mediaChange && this.loadedPlaylists_[playlist.id] && this.loadedPlaylists_[playlist.id].endList) {
-        this.state = 'HAVE_METADATA';
-        this.media_ = playlist; // trigger media change if the active media has been updated
-
-        if (mediaChange) {
-          this.trigger('mediachanging');
-          this.trigger('mediachange');
-        }
-
-        return;
-      } // switching to the active playlist is a no-op
-
-
-      if (!mediaChange) {
-        return;
-      } // switching from an already loaded playlist
-
-
-      if (this.media_) {
-        this.trigger('mediachanging');
-      }
-
-      this.addSidxSegments_(playlist, startingState, function (sidxChanged) {
-        // everything is ready just continue to haveMetadata
-        _this3.haveMetadata({
-          startingState: startingState,
-          playlist: playlist
-        });
-      });
-    };
-
-    _proto.haveMetadata = function haveMetadata(_ref2) {
-      var startingState = _ref2.startingState,
-          playlist = _ref2.playlist;
-      this.state = 'HAVE_METADATA';
-      this.loadedPlaylists_[playlist.id] = playlist;
-      this.mediaRequest_ = null; // This will trigger loadedplaylist
-
-      this.refreshMedia_(playlist.id); // fire loadedmetadata the first time a media playlist is loaded
-      // to resolve setup of media groups
-
-      if (startingState === 'HAVE_MASTER') {
-        this.trigger('loadedmetadata');
-      } else {
-        // trigger media change if the active media has been updated
-        this.trigger('mediachange');
-      }
-    };
-
-    _proto.pause = function pause() {
-      if (this.masterPlaylistLoader_.createMupOnMedia_) {
-        this.off('loadedmetadata', this.masterPlaylistLoader_.createMupOnMedia_);
-        this.masterPlaylistLoader_.createMupOnMedia_ = null;
-      }
-
-      this.stopRequest();
-      window.clearTimeout(this.mediaUpdateTimeout);
-      this.mediaUpdateTimeout = null;
-
-      if (this.isMaster_) {
-        window.clearTimeout(this.masterPlaylistLoader_.minimumUpdatePeriodTimeout_);
-        this.masterPlaylistLoader_.minimumUpdatePeriodTimeout_ = null;
-      }
-
-      if (this.state === 'HAVE_NOTHING') {
-        // If we pause the loader before any data has been retrieved, its as if we never
-        // started, so reset to an unstarted state.
-        this.started = false;
-      }
-    };
-
-    _proto.load = function load(isFinalRendition) {
-      var _this4 = this;
-
-      window.clearTimeout(this.mediaUpdateTimeout);
-      this.mediaUpdateTimeout = null;
-      var media = this.media();
-
-      if (isFinalRendition) {
-        var delay = media ? media.targetDuration / 2 * 1000 : 5 * 1000;
-        this.mediaUpdateTimeout = window.setTimeout(function () {
-          return _this4.load();
-        }, delay);
-        return;
-      } // because the playlists are internal to the manifest, load should either load the
-      // main manifest, or do nothing but trigger an event
-
-
-      if (!this.started) {
-        this.start();
-        return;
-      }
-
-      if (media && !media.endList) {
-        // Check to see if this is the master loader and the MUP was cleared (this happens
-        // when the loader was paused). `media` should be set at this point since one is always
-        // set during `start()`.
-        if (this.isMaster_ && !this.minimumUpdatePeriodTimeout_) {
-          // Trigger minimumUpdatePeriod to refresh the master manifest
-          this.trigger('minimumUpdatePeriod'); // Since there was no prior minimumUpdatePeriodTimeout it should be recreated
-
-          this.updateMinimumUpdatePeriodTimeout_();
-        }
-
-        this.trigger('mediaupdatetimeout');
-      } else {
-        this.trigger('loadedplaylist');
-      }
-    };
-
-    _proto.start = function start() {
-      var _this5 = this;
-
-      this.started = true; // We don't need to request the master manifest again
-      // Call this asynchronously to match the xhr request behavior below
-
-      if (!this.isMaster_) {
-        this.mediaRequest_ = window.setTimeout(function () {
-          return _this5.haveMaster_();
-        }, 0);
-        return;
-      }
-
-      this.requestMaster_(function (req, masterChanged) {
-        _this5.haveMaster_();
-
-        if (!_this5.hasPendingRequest() && !_this5.media_) {
-          _this5.media(_this5.masterPlaylistLoader_.master.playlists[0]);
-        }
-      });
-    };
-
-    _proto.requestMaster_ = function requestMaster_(cb) {
-      var _this6 = this;
-
-      this.request = this.vhs_.xhr({
-        uri: this.masterPlaylistLoader_.srcUrl,
-        withCredentials: this.withCredentials
-      }, function (error, req) {
-        if (_this6.requestErrored_(error, req)) {
-          if (_this6.state === 'HAVE_NOTHING') {
-            _this6.started = false;
-          }
-
-          return;
-        }
-
-        var masterChanged = req.responseText !== _this6.masterPlaylistLoader_.masterXml_;
-        _this6.masterPlaylistLoader_.masterXml_ = req.responseText;
-
-        if (req.responseHeaders && req.responseHeaders.date) {
-          _this6.masterLoaded_ = Date.parse(req.responseHeaders.date);
-        } else {
-          _this6.masterLoaded_ = Date.now();
-        }
-
-        _this6.masterPlaylistLoader_.srcUrl = resolveManifestRedirect(_this6.handleManifestRedirects, _this6.masterPlaylistLoader_.srcUrl, req);
-
-        if (masterChanged) {
-          _this6.handleMaster_();
-
-          _this6.syncClientServerClock_(function () {
-            return cb(req, masterChanged);
-          });
-
-          return;
-        }
-
-        return cb(req, masterChanged);
-      });
-    }
-    /**
-     * Parses the master xml for UTCTiming node to sync the client clock to the server
-     * clock. If the UTCTiming node requires a HEAD or GET request, that request is made.
-     *
-     * @param {Function} done
-     *        Function to call when clock sync has completed
-     */
-    ;
-
-    _proto.syncClientServerClock_ = function syncClientServerClock_(done) {
-      var _this7 = this;
-
-      var utcTiming = parseUTCTiming(this.masterPlaylistLoader_.masterXml_); // No UTCTiming element found in the mpd. Use Date header from mpd request as the
-      // server clock
-
-      if (utcTiming === null) {
-        this.masterPlaylistLoader_.clientOffset_ = this.masterLoaded_ - Date.now();
-        return done();
-      }
-
-      if (utcTiming.method === 'DIRECT') {
-        this.masterPlaylistLoader_.clientOffset_ = utcTiming.value - Date.now();
-        return done();
-      }
-
-      this.request = this.vhs_.xhr({
-        uri: resolveUrl(this.masterPlaylistLoader_.srcUrl, utcTiming.value),
-        method: utcTiming.method,
-        withCredentials: this.withCredentials
-      }, function (error, req) {
-        // disposed
-        if (!_this7.request) {
-          return;
-        }
-
-        if (error) {
-          // sync request failed, fall back to using date header from mpd
-          // TODO: log warning
-          _this7.masterPlaylistLoader_.clientOffset_ = _this7.masterLoaded_ - Date.now();
-          return done();
-        }
-
-        var serverTime;
-
-        if (utcTiming.method === 'HEAD') {
-          if (!req.responseHeaders || !req.responseHeaders.date) {
-            // expected date header not preset, fall back to using date header from mpd
-            // TODO: log warning
-            serverTime = _this7.masterLoaded_;
-          } else {
-            serverTime = Date.parse(req.responseHeaders.date);
-          }
-        } else {
-          serverTime = Date.parse(req.responseText);
-        }
-
-        _this7.masterPlaylistLoader_.clientOffset_ = serverTime - Date.now();
-        done();
-      });
-    };
-
-    _proto.haveMaster_ = function haveMaster_() {
-      this.state = 'HAVE_MASTER';
-
-      if (this.isMaster_) {
-        // We have the master playlist at this point, so
-        // trigger this to allow MasterPlaylistController
-        // to make an initial playlist selection
-        this.trigger('loadedplaylist');
-      } else if (!this.media_) {
-        // no media playlist was specifically selected so select
-        // the one the child playlist loader was created with
-        this.media(this.childPlaylist_);
-      }
-    };
-
-    _proto.handleMaster_ = function handleMaster_() {
-      // clear media request
-      this.mediaRequest_ = null;
-      var oldMaster = this.masterPlaylistLoader_.master;
-      var newMaster = parseMasterXml({
-        masterXml: this.masterPlaylistLoader_.masterXml_,
-        srcUrl: this.masterPlaylistLoader_.srcUrl,
-        clientOffset: this.masterPlaylistLoader_.clientOffset_,
-        sidxMapping: this.masterPlaylistLoader_.sidxMapping_,
-        previousManifest: oldMaster
-      }); // if we have an old master to compare the new master against
-
-      if (oldMaster) {
-        newMaster = updateMaster(oldMaster, newMaster, this.masterPlaylistLoader_.sidxMapping_);
-      } // only update master if we have a new master
-
-
-      this.masterPlaylistLoader_.master = newMaster ? newMaster : oldMaster;
-      var location = this.masterPlaylistLoader_.master.locations && this.masterPlaylistLoader_.master.locations[0];
-
-      if (location && location !== this.masterPlaylistLoader_.srcUrl) {
-        this.masterPlaylistLoader_.srcUrl = location;
-      }
-
-      if (!oldMaster || newMaster && newMaster.minimumUpdatePeriod !== oldMaster.minimumUpdatePeriod) {
-        this.updateMinimumUpdatePeriodTimeout_();
-      }
-
-      return Boolean(newMaster);
-    };
-
-    _proto.updateMinimumUpdatePeriodTimeout_ = function updateMinimumUpdatePeriodTimeout_() {
-      var mpl = this.masterPlaylistLoader_; // cancel any pending creation of mup on media
-      // a new one will be added if needed.
-
-      if (mpl.createMupOnMedia_) {
-        mpl.off('loadedmetadata', mpl.createMupOnMedia_);
-        mpl.createMupOnMedia_ = null;
-      } // clear any pending timeouts
-
-
-      if (mpl.minimumUpdatePeriodTimeout_) {
-        window.clearTimeout(mpl.minimumUpdatePeriodTimeout_);
-        mpl.minimumUpdatePeriodTimeout_ = null;
-      }
-
-      var mup = mpl.master && mpl.master.minimumUpdatePeriod; // If the minimumUpdatePeriod has a value of 0, that indicates that the current
-      // MPD has no future validity, so a new one will need to be acquired when new
-      // media segments are to be made available. Thus, we use the target duration
-      // in this case
-
-      if (mup === 0) {
-        if (mpl.media()) {
-          mup = mpl.media().targetDuration * 1000;
-        } else {
-          mpl.createMupOnMedia_ = mpl.updateMinimumUpdatePeriodTimeout_;
-          mpl.one('loadedmetadata', mpl.createMupOnMedia_);
-        }
-      } // if minimumUpdatePeriod is invalid or <= zero, which
-      // can happen when a live video becomes VOD. skip timeout
-      // creation.
-
-
-      if (typeof mup !== 'number' || mup <= 0) {
-        if (mup < 0) {
-          this.logger_("found invalid minimumUpdatePeriod of " + mup + ", not setting a timeout");
-        }
-
-        return;
-      }
-
-      this.createMUPTimeout_(mup);
-    };
-
-    _proto.createMUPTimeout_ = function createMUPTimeout_(mup) {
-      var mpl = this.masterPlaylistLoader_;
-      mpl.minimumUpdatePeriodTimeout_ = window.setTimeout(function () {
-        mpl.minimumUpdatePeriodTimeout_ = null;
-        mpl.trigger('minimumUpdatePeriod');
-        mpl.createMUPTimeout_(mup);
-      }, mup);
-    }
-    /**
-     * Sends request to refresh the master xml and updates the parsed master manifest
-     */
-    ;
-
-    _proto.refreshXml_ = function refreshXml_() {
-      var _this8 = this;
-
-      this.requestMaster_(function (req, masterChanged) {
-        if (!masterChanged) {
-          return;
-        }
-
-        if (_this8.media_) {
-          _this8.media_ = _this8.masterPlaylistLoader_.master.playlists[_this8.media_.id];
-        } // This will filter out updated sidx info from the mapping
-
-
-        _this8.masterPlaylistLoader_.sidxMapping_ = filterChangedSidxMappings(_this8.masterPlaylistLoader_.master, _this8.masterPlaylistLoader_.sidxMapping_);
-
-        _this8.addSidxSegments_(_this8.media(), _this8.state, function (sidxChanged) {
-          // TODO: do we need to reload the current playlist?
-          _this8.refreshMedia_(_this8.media().id);
-        });
-      });
-    }
-    /**
-     * Refreshes the media playlist by re-parsing the master xml and updating playlist
-     * references. If this is an alternate loader, the updated parsed manifest is retrieved
-     * from the master loader.
-     */
-    ;
-
-    _proto.refreshMedia_ = function refreshMedia_(mediaID) {
-      var _this9 = this;
-
-      if (!mediaID) {
-        throw new Error('refreshMedia_ must take a media id');
-      } // for master we have to reparse the master xml
-      // to re-create segments based on current timing values
-      // which may change media. We only skip updating master
-      // if this is the first time this.media_ is being set.
-      // as master was just parsed in that case.
-
-
-      if (this.media_ && this.isMaster_) {
-        this.handleMaster_();
-      }
-
-      var playlists = this.masterPlaylistLoader_.master.playlists;
-      var mediaChanged = !this.media_ || this.media_ !== playlists[mediaID];
-
-      if (mediaChanged) {
-        this.media_ = playlists[mediaID];
-      } else {
-        this.trigger('playlistunchanged');
-      }
-
-      if (!this.mediaUpdateTimeout) {
-        var createMediaUpdateTimeout = function createMediaUpdateTimeout() {
-          if (_this9.media().endList) {
-            return;
-          }
-
-          _this9.mediaUpdateTimeout = window.setTimeout(function () {
-            _this9.trigger('mediaupdatetimeout');
-
-            createMediaUpdateTimeout();
-          }, refreshDelay(_this9.media(), Boolean(mediaChanged)));
-        };
-
-        createMediaUpdateTimeout();
-      }
-
-      this.trigger('loadedplaylist');
-    };
-
-    return DashPlaylistLoader;
-  }(EventTarget);
-
-  var Config = {
-    GOAL_BUFFER_LENGTH: 30,
-    MAX_GOAL_BUFFER_LENGTH: 60,
-    BACK_BUFFER_LENGTH: 30,
-    GOAL_BUFFER_LENGTH_RATE: 1,
-    // 0.5 MB/s
-    INITIAL_BANDWIDTH: 4194304,
-    // A fudge factor to apply to advertised playlist bitrates to account for
-    // temporary flucations in client bandwidth
-    BANDWIDTH_VARIANCE: 1.2,
-    // How much of the buffer must be filled before we consider upswitching
-    BUFFER_LOW_WATER_LINE: 0,
-    MAX_BUFFER_LOW_WATER_LINE: 30,
-    // TODO: Remove this when experimentalBufferBasedABR is removed
-    EXPERIMENTAL_MAX_BUFFER_LOW_WATER_LINE: 16,
-    BUFFER_LOW_WATER_LINE_RATE: 1,
-    // If the buffer is greater than the high water line, we won't switch down
-    BUFFER_HIGH_WATER_LINE: 30
-  };
-
-  var stringToArrayBuffer = function stringToArrayBuffer(string) {
-    var view = new Uint8Array(new ArrayBuffer(string.length));
-
-    for (var i = 0; i < string.length; i++) {
-      view[i] = string.charCodeAt(i);
-    }
-
-    return view.buffer;
-  };
-  /* global Blob, BlobBuilder, Worker */
-  // unify worker interface
-
-
-  var browserWorkerPolyFill = function browserWorkerPolyFill(workerObj) {
-    // node only supports on/off
-    workerObj.on = workerObj.addEventListener;
-    workerObj.off = workerObj.removeEventListener;
-    return workerObj;
-  };
-
-  var createObjectURL = function createObjectURL(str) {
-    try {
-      return URL.createObjectURL(new Blob([str], {
-        type: 'application/javascript'
-      }));
-    } catch (e) {
-      var blob = new BlobBuilder();
-      blob.append(str);
-      return URL.createObjectURL(blob.getBlob());
-    }
-  };
-
-  var factory = function factory(code) {
-    return function () {
-      var objectUrl = createObjectURL(code);
-      var worker = browserWorkerPolyFill(new Worker(objectUrl));
-      worker.objURL = objectUrl;
-      var terminate = worker.terminate;
-      worker.on = worker.addEventListener;
-      worker.off = worker.removeEventListener;
-
-      worker.terminate = function () {
-        URL.revokeObjectURL(objectUrl);
-        return terminate.call(this);
-      };
-
-      return worker;
-    };
-  };
-
-  var transform = function transform(code) {
-    return "var browserWorkerPolyFill = " + browserWorkerPolyFill.toString() + ";\n" + 'browserWorkerPolyFill(self);\n' + code;
-  };
-
-  var getWorkerString = function getWorkerString(fn) {
-    return fn.toString().replace(/^function.+?{/, '').slice(0, -1);
-  };
-  /* rollup-plugin-worker-factory start for worker!/Users/abarstow/videojs/http-streaming/src/transmuxer-worker.js */
-
-
-  var workerCode$1 = transform(getWorkerString(function () {
-    /**
-     * mux.js
-     *
-     * Copyright (c) Brightcove
-     * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE
-     *
-     * A lightweight readable stream implemention that handles event dispatching.
-     * Objects that inherit from streams should call init in their constructors.
-     */
-    var Stream = function Stream() {
-      this.init = function () {
-        var listeners = {};
-        /**
-         * Add a listener for a specified event type.
-         * @param type {string} the event name
-         * @param listener {function} the callback to be invoked when an event of
-         * the specified type occurs
-         */
-
-        this.on = function (type, listener) {
-          if (!listeners[type]) {
-            listeners[type] = [];
-          }
-
-          listeners[type] = listeners[type].concat(listener);
-        };
-        /**
-         * Remove a listener for a specified event type.
-         * @param type {string} the event name
-         * @param listener {function} a function previously registered for this
-         * type of event through `on`
-         */
-
-
-        this.off = function (type, listener) {
-          var index;
-
-          if (!listeners[type]) {
-            return false;
-          }
-
-          index = listeners[type].indexOf(listener);
-          listeners[type] = listeners[type].slice();
-          listeners[type].splice(index, 1);
-          return index > -1;
-        };
-        /**
-         * Trigger an event of the specified type on this stream. Any additional
-         * arguments to this function are passed as parameters to event listeners.
-         * @param type {string} the event name
-         */
-
-
-        this.trigger = function (type) {
-          var callbacks, i, length, args;
-          callbacks = listeners[type];
-
-          if (!callbacks) {
-            return;
-          } // Slicing the arguments on every invocation of this method
-          // can add a significant amount of overhead. Avoid the
-          // intermediate object creation for the common case of a
-          // single callback argument
-
-
-          if (arguments.length === 2) {
-            length = callbacks.length;
-
-            for (i = 0; i < length; ++i) {
-              callbacks[i].call(this, arguments[1]);
-            }
-          } else {
-            args = [];
-            i = arguments.length;
-
-            for (i = 1; i < arguments.length; ++i) {
-              args.push(arguments[i]);
-            }
-
-            length = callbacks.length;
-
-            for (i = 0; i < length; ++i) {
-              callbacks[i].apply(this, args);
-            }
-          }
-        };
-        /**
-         * Destroys the stream and cleans up.
-         */
-
-
-        this.dispose = function () {
-          listeners = {};
-        };
-      };
-    };
-    /**
-     * Forwards all `data` events on this stream to the destination stream. The
-     * destination stream should provide a method `push` to receive the data
-     * events as they arrive.
-     * @param destination {stream} the stream that will receive all `data` events
-     * @param autoFlush {boolean} if false, we will not call `flush` on the destination
-     *                            when the current stream emits a 'done' event
-     * @see http://nodejs.org/api/stream.html#stream_readable_pipe_destination_options
-     */
-
-
-    Stream.prototype.pipe = function (destination) {
-      this.on('data', function (data) {
-        destination.push(data);
-      });
-      this.on('done', function (flushSource) {
-        destination.flush(flushSource);
-      });
-      this.on('partialdone', function (flushSource) {
-        destination.partialFlush(flushSource);
-      });
-      this.on('endedtimeline', function (flushSource) {
-        destination.endTimeline(flushSource);
-      });
-      this.on('reset', function (flushSource) {
-        destination.reset(flushSource);
-      });
-      return destination;
-    }; // Default stream functions that are expected to be overridden to perform
-    // actual work. These are provided by the prototype as a sort of no-op
-    // implementation so that we don't have to check for their existence in the
-    // `pipe` function above.
-
-
-    Stream.prototype.push = function (data) {
-      this.trigger('data', data);
-    };
-
-    Stream.prototype.flush = function (flushSource) {
-      this.trigger('done', flushSource);
-    };
-
-    Stream.prototype.partialFlush = function (flushSource) {
-      this.trigger('partialdone', flushSource);
-    };
-
-    Stream.prototype.endTimeline = function (flushSource) {
-      this.trigger('endedtimeline', flushSource);
-    };
-
-    Stream.prototype.reset = function (flushSource) {
-      this.trigger('reset', flushSource);
-    };
-
-    var stream = Stream;
-    var MAX_UINT32$1 = Math.pow(2, 32);
-
-    var getUint64$2 = function getUint64(uint8) {
-      var dv = new DataView(uint8.buffer, uint8.byteOffset, uint8.byteLength);
-      var value;
-
-      if (dv.getBigUint64) {
-        value = dv.getBigUint64(0);
-
-        if (value < Number.MAX_SAFE_INTEGER) {
-          return Number(value);
-        }
-
-        return value;
-      }
-
-      return dv.getUint32(0) * MAX_UINT32$1 + dv.getUint32(4);
-    };
-
     var numbers = {
-      getUint64: getUint64$2,
-      MAX_UINT32: MAX_UINT32$1
+        getUint64: getUint64$1,
+        MAX_UINT32: MAX_UINT32
     };
-    var MAX_UINT32 = numbers.MAX_UINT32;
-    var box, dinf, esds, ftyp, mdat, mfhd, minf, moof, moov, mvex, mvhd, trak, tkhd, mdia, mdhd, hdlr, sdtp, stbl, stsd, traf, trex, trun$1, types, MAJOR_BRAND, MINOR_VERSION, AVC1_BRAND, VIDEO_HDLR, AUDIO_HDLR, HDLR_TYPES, VMHD, SMHD, DREF, STCO, STSC, STSZ, STTS; // pre-calculate constants
 
-    (function () {
-      var i;
-      types = {
-        avc1: [],
-        // codingname
-        avcC: [],
-        btrt: [],
-        dinf: [],
-        dref: [],
-        esds: [],
-        ftyp: [],
-        hdlr: [],
-        mdat: [],
-        mdhd: [],
-        mdia: [],
-        mfhd: [],
-        minf: [],
-        moof: [],
-        moov: [],
-        mp4a: [],
-        // codingname
-        mvex: [],
-        mvhd: [],
-        pasp: [],
-        sdtp: [],
-        smhd: [],
-        stbl: [],
-        stco: [],
-        stsc: [],
-        stsd: [],
-        stsz: [],
-        stts: [],
-        styp: [],
-        tfdt: [],
-        tfhd: [],
-        traf: [],
-        trak: [],
-        trun: [],
-        trex: [],
-        tkhd: [],
-        vmhd: []
-      }; // In environments where Uint8Array is undefined (e.g., IE8), skip set up so that we
-      // don't throw an error
-
-      if (typeof Uint8Array === 'undefined') {
-        return;
-      }
-
-      for (i in types) {
-        if (types.hasOwnProperty(i)) {
-          types[i] = [i.charCodeAt(0), i.charCodeAt(1), i.charCodeAt(2), i.charCodeAt(3)];
+    var getUint64 = numbers.getUint64;
+    var parseSidx = function (data) {
+        var view = new DataView(data.buffer, data.byteOffset, data.byteLength),
+            result = {
+                version: data[0],
+                flags: new Uint8Array(data.subarray(1, 4)),
+                references: [],
+                referenceId: view.getUint32(4),
+                timescale: view.getUint32(8)
+            },
+            i = 12;
+        if (result.version === 0) {
+            result.earliestPresentationTime = view.getUint32(i);
+            result.firstOffset = view.getUint32(i + 4);
+            i += 8;
+        } else {
+            // read 64 bits
+            result.earliestPresentationTime = getUint64(data.subarray(i));
+            result.firstOffset = getUint64(data.subarray(i + 8));
+            i += 16;
         }
-      }
+        i += 2; // reserved
 
-      MAJOR_BRAND = new Uint8Array(['i'.charCodeAt(0), 's'.charCodeAt(0), 'o'.charCodeAt(0), 'm'.charCodeAt(0)]);
-      AVC1_BRAND = new Uint8Array(['a'.charCodeAt(0), 'v'.charCodeAt(0), 'c'.charCodeAt(0), '1'.charCodeAt(0)]);
-      MINOR_VERSION = new Uint8Array([0, 0, 0, 1]);
-      VIDEO_HDLR = new Uint8Array([0x00, // version 0
-      0x00, 0x00, 0x00, // flags
-      0x00, 0x00, 0x00, 0x00, // pre_defined
-      0x76, 0x69, 0x64, 0x65, // handler_type: 'vide'
-      0x00, 0x00, 0x00, 0x00, // reserved
-      0x00, 0x00, 0x00, 0x00, // reserved
-      0x00, 0x00, 0x00, 0x00, // reserved
-      0x56, 0x69, 0x64, 0x65, 0x6f, 0x48, 0x61, 0x6e, 0x64, 0x6c, 0x65, 0x72, 0x00 // name: 'VideoHandler'
-      ]);
-      AUDIO_HDLR = new Uint8Array([0x00, // version 0
-      0x00, 0x00, 0x00, // flags
-      0x00, 0x00, 0x00, 0x00, // pre_defined
-      0x73, 0x6f, 0x75, 0x6e, // handler_type: 'soun'
-      0x00, 0x00, 0x00, 0x00, // reserved
-      0x00, 0x00, 0x00, 0x00, // reserved
-      0x00, 0x00, 0x00, 0x00, // reserved
-      0x53, 0x6f, 0x75, 0x6e, 0x64, 0x48, 0x61, 0x6e, 0x64, 0x6c, 0x65, 0x72, 0x00 // name: 'SoundHandler'
-      ]);
-      HDLR_TYPES = {
-        video: VIDEO_HDLR,
-        audio: AUDIO_HDLR
-      };
-      DREF = new Uint8Array([0x00, // version 0
-      0x00, 0x00, 0x00, // flags
-      0x00, 0x00, 0x00, 0x01, // entry_count
-      0x00, 0x00, 0x00, 0x0c, // entry_size
-      0x75, 0x72, 0x6c, 0x20, // 'url' type
-      0x00, // version 0
-      0x00, 0x00, 0x01 // entry_flags
-      ]);
-      SMHD = new Uint8Array([0x00, // version
-      0x00, 0x00, 0x00, // flags
-      0x00, 0x00, // balance, 0 means centered
-      0x00, 0x00 // reserved
-      ]);
-      STCO = new Uint8Array([0x00, // version
-      0x00, 0x00, 0x00, // flags
-      0x00, 0x00, 0x00, 0x00 // entry_count
-      ]);
-      STSC = STCO;
-      STSZ = new Uint8Array([0x00, // version
-      0x00, 0x00, 0x00, // flags
-      0x00, 0x00, 0x00, 0x00, // sample_size
-      0x00, 0x00, 0x00, 0x00 // sample_count
-      ]);
-      STTS = STCO;
-      VMHD = new Uint8Array([0x00, // version
-      0x00, 0x00, 0x01, // flags
-      0x00, 0x00, // graphicsmode
-      0x00, 0x00, 0x00, 0x00, 0x00, 0x00 // opcolor
-      ]);
-    })();
+        var referenceCount = view.getUint16(i);
+        i += 2; // start of references
 
-    box = function box(type) {
-      var payload = [],
-          size = 0,
-          i,
-          result,
-          view;
-
-      for (i = 1; i < arguments.length; i++) {
-        payload.push(arguments[i]);
-      }
-
-      i = payload.length; // calculate the total size we need to allocate
-
-      while (i--) {
-        size += payload[i].byteLength;
-      }
-
-      result = new Uint8Array(size + 8);
-      view = new DataView(result.buffer, result.byteOffset, result.byteLength);
-      view.setUint32(0, result.byteLength);
-      result.set(type, 4); // copy the payload into the result
-
-      for (i = 0, size = 8; i < payload.length; i++) {
-        result.set(payload[i], size);
-        size += payload[i].byteLength;
-      }
-
-      return result;
-    };
-
-    dinf = function dinf() {
-      return box(types.dinf, box(types.dref, DREF));
-    };
-
-    esds = function esds(track) {
-      return box(types.esds, new Uint8Array([0x00, // version
-      0x00, 0x00, 0x00, // flags
-      // ES_Descriptor
-      0x03, // tag, ES_DescrTag
-      0x19, // length
-      0x00, 0x00, // ES_ID
-      0x00, // streamDependenceFlag, URL_flag, reserved, streamPriority
-      // DecoderConfigDescriptor
-      0x04, // tag, DecoderConfigDescrTag
-      0x11, // length
-      0x40, // object type
-      0x15, // streamType
-      0x00, 0x06, 0x00, // bufferSizeDB
-      0x00, 0x00, 0xda, 0xc0, // maxBitrate
-      0x00, 0x00, 0xda, 0xc0, // avgBitrate
-      // DecoderSpecificInfo
-      0x05, // tag, DecoderSpecificInfoTag
-      0x02, // length
-      // ISO/IEC 14496-3, AudioSpecificConfig
-      // for samplingFrequencyIndex see ISO/IEC 13818-7:2006, 8.1.3.2.2, Table 35
-      track.audioobjecttype << 3 | track.samplingfrequencyindex >>> 1, track.samplingfrequencyindex << 7 | track.channelcount << 3, 0x06, 0x01, 0x02 // GASpecificConfig
-      ]));
-    };
-
-    ftyp = function ftyp() {
-      return box(types.ftyp, MAJOR_BRAND, MINOR_VERSION, MAJOR_BRAND, AVC1_BRAND);
-    };
-
-    hdlr = function hdlr(type) {
-      return box(types.hdlr, HDLR_TYPES[type]);
-    };
-
-    mdat = function mdat(data) {
-      return box(types.mdat, data);
-    };
-
-    mdhd = function mdhd(track) {
-      var result = new Uint8Array([0x00, // version 0
-      0x00, 0x00, 0x00, // flags
-      0x00, 0x00, 0x00, 0x02, // creation_time
-      0x00, 0x00, 0x00, 0x03, // modification_time
-      0x00, 0x01, 0x5f, 0x90, // timescale, 90,000 "ticks" per second
-      track.duration >>> 24 & 0xFF, track.duration >>> 16 & 0xFF, track.duration >>> 8 & 0xFF, track.duration & 0xFF, // duration
-      0x55, 0xc4, // 'und' language (undetermined)
-      0x00, 0x00]); // Use the sample rate from the track metadata, when it is
-      // defined. The sample rate can be parsed out of an ADTS header, for
-      // instance.
-
-      if (track.samplerate) {
-        result[12] = track.samplerate >>> 24 & 0xFF;
-        result[13] = track.samplerate >>> 16 & 0xFF;
-        result[14] = track.samplerate >>> 8 & 0xFF;
-        result[15] = track.samplerate & 0xFF;
-      }
-
-      return box(types.mdhd, result);
-    };
-
-    mdia = function mdia(track) {
-      return box(types.mdia, mdhd(track), hdlr(track.type), minf(track));
-    };
-
-    mfhd = function mfhd(sequenceNumber) {
-      return box(types.mfhd, new Uint8Array([0x00, 0x00, 0x00, 0x00, // flags
-      (sequenceNumber & 0xFF000000) >> 24, (sequenceNumber & 0xFF0000) >> 16, (sequenceNumber & 0xFF00) >> 8, sequenceNumber & 0xFF // sequence_number
-      ]));
-    };
-
-    minf = function minf(track) {
-      return box(types.minf, track.type === 'video' ? box(types.vmhd, VMHD) : box(types.smhd, SMHD), dinf(), stbl(track));
-    };
-
-    moof = function moof(sequenceNumber, tracks) {
-      var trackFragments = [],
-          i = tracks.length; // build traf boxes for each track fragment
-
-      while (i--) {
-        trackFragments[i] = traf(tracks[i]);
-      }
-
-      return box.apply(null, [types.moof, mfhd(sequenceNumber)].concat(trackFragments));
-    };
-    /**
-     * Returns a movie box.
-     * @param tracks {array} the tracks associated with this movie
-     * @see ISO/IEC 14496-12:2012(E), section 8.2.1
-     */
-
-
-    moov = function moov(tracks) {
-      var i = tracks.length,
-          boxes = [];
-
-      while (i--) {
-        boxes[i] = trak(tracks[i]);
-      }
-
-      return box.apply(null, [types.moov, mvhd(0xffffffff)].concat(boxes).concat(mvex(tracks)));
-    };
-
-    mvex = function mvex(tracks) {
-      var i = tracks.length,
-          boxes = [];
-
-      while (i--) {
-        boxes[i] = trex(tracks[i]);
-      }
-
-      return box.apply(null, [types.mvex].concat(boxes));
-    };
-
-    mvhd = function mvhd(duration) {
-      var bytes = new Uint8Array([0x00, // version 0
-      0x00, 0x00, 0x00, // flags
-      0x00, 0x00, 0x00, 0x01, // creation_time
-      0x00, 0x00, 0x00, 0x02, // modification_time
-      0x00, 0x01, 0x5f, 0x90, // timescale, 90,000 "ticks" per second
-      (duration & 0xFF000000) >> 24, (duration & 0xFF0000) >> 16, (duration & 0xFF00) >> 8, duration & 0xFF, // duration
-      0x00, 0x01, 0x00, 0x00, // 1.0 rate
-      0x01, 0x00, // 1.0 volume
-      0x00, 0x00, // reserved
-      0x00, 0x00, 0x00, 0x00, // reserved
-      0x00, 0x00, 0x00, 0x00, // reserved
-      0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x00, 0x00, 0x00, // transformation: unity matrix
-      0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // pre_defined
-      0xff, 0xff, 0xff, 0xff // next_track_ID
-      ]);
-      return box(types.mvhd, bytes);
-    };
-
-    sdtp = function sdtp(track) {
-      var samples = track.samples || [],
-          bytes = new Uint8Array(4 + samples.length),
-          flags,
-          i; // leave the full box header (4 bytes) all zero
-      // write the sample table
-
-      for (i = 0; i < samples.length; i++) {
-        flags = samples[i].flags;
-        bytes[i + 4] = flags.dependsOn << 4 | flags.isDependedOn << 2 | flags.hasRedundancy;
-      }
-
-      return box(types.sdtp, bytes);
-    };
-
-    stbl = function stbl(track) {
-      return box(types.stbl, stsd(track), box(types.stts, STTS), box(types.stsc, STSC), box(types.stsz, STSZ), box(types.stco, STCO));
-    };
-
-    (function () {
-      var videoSample, audioSample;
-
-      stsd = function stsd(track) {
-        return box(types.stsd, new Uint8Array([0x00, // version 0
-        0x00, 0x00, 0x00, // flags
-        0x00, 0x00, 0x00, 0x01]), track.type === 'video' ? videoSample(track) : audioSample(track));
-      };
-
-      videoSample = function videoSample(track) {
-        var sps = track.sps || [],
-            pps = track.pps || [],
-            sequenceParameterSets = [],
-            pictureParameterSets = [],
-            i,
-            avc1Box; // assemble the SPSs
-
-        for (i = 0; i < sps.length; i++) {
-          sequenceParameterSets.push((sps[i].byteLength & 0xFF00) >>> 8);
-          sequenceParameterSets.push(sps[i].byteLength & 0xFF); // sequenceParameterSetLength
-
-          sequenceParameterSets = sequenceParameterSets.concat(Array.prototype.slice.call(sps[i])); // SPS
-        } // assemble the PPSs
-
-
-        for (i = 0; i < pps.length; i++) {
-          pictureParameterSets.push((pps[i].byteLength & 0xFF00) >>> 8);
-          pictureParameterSets.push(pps[i].byteLength & 0xFF);
-          pictureParameterSets = pictureParameterSets.concat(Array.prototype.slice.call(pps[i]));
+        for (; referenceCount > 0; i += 12, referenceCount--) {
+            result.references.push({
+                referenceType: (data[i] & 0x80) >>> 7,
+                referencedSize: view.getUint32(i) & 0x7FFFFFFF,
+                subsegmentDuration: view.getUint32(i + 4),
+                startsWithSap: !!(data[i + 8] & 0x80),
+                sapType: (data[i + 8] & 0x70) >>> 4,
+                sapDeltaTime: view.getUint32(i + 8) & 0x0FFFFFFF
+            });
         }
-
-        avc1Box = [types.avc1, new Uint8Array([0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // reserved
-        0x00, 0x01, // data_reference_index
-        0x00, 0x00, // pre_defined
-        0x00, 0x00, // reserved
-        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // pre_defined
-        (track.width & 0xff00) >> 8, track.width & 0xff, // width
-        (track.height & 0xff00) >> 8, track.height & 0xff, // height
-        0x00, 0x48, 0x00, 0x00, // horizresolution
-        0x00, 0x48, 0x00, 0x00, // vertresolution
-        0x00, 0x00, 0x00, 0x00, // reserved
-        0x00, 0x01, // frame_count
-        0x13, 0x76, 0x69, 0x64, 0x65, 0x6f, 0x6a, 0x73, 0x2d, 0x63, 0x6f, 0x6e, 0x74, 0x72, 0x69, 0x62, 0x2d, 0x68, 0x6c, 0x73, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // compressorname
-        0x00, 0x18, // depth = 24
-        0x11, 0x11 // pre_defined = -1
-        ]), box(types.avcC, new Uint8Array([0x01, // configurationVersion
-        track.profileIdc, // AVCProfileIndication
-        track.profileCompatibility, // profile_compatibility
-        track.levelIdc, // AVCLevelIndication
-        0xff // lengthSizeMinusOne, hard-coded to 4 bytes
-        ].concat([sps.length], // numOfSequenceParameterSets
-        sequenceParameterSets, // "SPS"
-        [pps.length], // numOfPictureParameterSets
-        pictureParameterSets // "PPS"
-        ))), box(types.btrt, new Uint8Array([0x00, 0x1c, 0x9c, 0x80, // bufferSizeDB
-        0x00, 0x2d, 0xc6, 0xc0, // maxBitrate
-        0x00, 0x2d, 0xc6, 0xc0 // avgBitrate
-        ]))];
-
-        if (track.sarRatio) {
-          var hSpacing = track.sarRatio[0],
-              vSpacing = track.sarRatio[1];
-          avc1Box.push(box(types.pasp, new Uint8Array([(hSpacing & 0xFF000000) >> 24, (hSpacing & 0xFF0000) >> 16, (hSpacing & 0xFF00) >> 8, hSpacing & 0xFF, (vSpacing & 0xFF000000) >> 24, (vSpacing & 0xFF0000) >> 16, (vSpacing & 0xFF00) >> 8, vSpacing & 0xFF])));
-        }
-
-        return box.apply(null, avc1Box);
-      };
-
-      audioSample = function audioSample(track) {
-        return box(types.mp4a, new Uint8Array([// SampleEntry, ISO/IEC 14496-12
-        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // reserved
-        0x00, 0x01, // data_reference_index
-        // AudioSampleEntry, ISO/IEC 14496-12
-        0x00, 0x00, 0x00, 0x00, // reserved
-        0x00, 0x00, 0x00, 0x00, // reserved
-        (track.channelcount & 0xff00) >> 8, track.channelcount & 0xff, // channelcount
-        (track.samplesize & 0xff00) >> 8, track.samplesize & 0xff, // samplesize
-        0x00, 0x00, // pre_defined
-        0x00, 0x00, // reserved
-        (track.samplerate & 0xff00) >> 8, track.samplerate & 0xff, 0x00, 0x00 // samplerate, 16.16
-        // MP4AudioSampleEntry, ISO/IEC 14496-14
-        ]), esds(track));
-      };
-    })();
-
-    tkhd = function tkhd(track) {
-      var result = new Uint8Array([0x00, // version 0
-      0x00, 0x00, 0x07, // flags
-      0x00, 0x00, 0x00, 0x00, // creation_time
-      0x00, 0x00, 0x00, 0x00, // modification_time
-      (track.id & 0xFF000000) >> 24, (track.id & 0xFF0000) >> 16, (track.id & 0xFF00) >> 8, track.id & 0xFF, // track_ID
-      0x00, 0x00, 0x00, 0x00, // reserved
-      (track.duration & 0xFF000000) >> 24, (track.duration & 0xFF0000) >> 16, (track.duration & 0xFF00) >> 8, track.duration & 0xFF, // duration
-      0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // reserved
-      0x00, 0x00, // layer
-      0x00, 0x00, // alternate_group
-      0x01, 0x00, // non-audio track volume
-      0x00, 0x00, // reserved
-      0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x00, 0x00, 0x00, // transformation: unity matrix
-      (track.width & 0xFF00) >> 8, track.width & 0xFF, 0x00, 0x00, // width
-      (track.height & 0xFF00) >> 8, track.height & 0xFF, 0x00, 0x00 // height
-      ]);
-      return box(types.tkhd, result);
-    };
-    /**
-     * Generate a track fragment (traf) box. A traf box collects metadata
-     * about tracks in a movie fragment (moof) box.
-     */
-
-
-    traf = function traf(track) {
-      var trackFragmentHeader, trackFragmentDecodeTime, trackFragmentRun, sampleDependencyTable, dataOffset, upperWordBaseMediaDecodeTime, lowerWordBaseMediaDecodeTime;
-      trackFragmentHeader = box(types.tfhd, new Uint8Array([0x00, // version 0
-      0x00, 0x00, 0x3a, // flags
-      (track.id & 0xFF000000) >> 24, (track.id & 0xFF0000) >> 16, (track.id & 0xFF00) >> 8, track.id & 0xFF, // track_ID
-      0x00, 0x00, 0x00, 0x01, // sample_description_index
-      0x00, 0x00, 0x00, 0x00, // default_sample_duration
-      0x00, 0x00, 0x00, 0x00, // default_sample_size
-      0x00, 0x00, 0x00, 0x00 // default_sample_flags
-      ]));
-      upperWordBaseMediaDecodeTime = Math.floor(track.baseMediaDecodeTime / MAX_UINT32);
-      lowerWordBaseMediaDecodeTime = Math.floor(track.baseMediaDecodeTime % MAX_UINT32);
-      trackFragmentDecodeTime = box(types.tfdt, new Uint8Array([0x01, // version 1
-      0x00, 0x00, 0x00, // flags
-      // baseMediaDecodeTime
-      upperWordBaseMediaDecodeTime >>> 24 & 0xFF, upperWordBaseMediaDecodeTime >>> 16 & 0xFF, upperWordBaseMediaDecodeTime >>> 8 & 0xFF, upperWordBaseMediaDecodeTime & 0xFF, lowerWordBaseMediaDecodeTime >>> 24 & 0xFF, lowerWordBaseMediaDecodeTime >>> 16 & 0xFF, lowerWordBaseMediaDecodeTime >>> 8 & 0xFF, lowerWordBaseMediaDecodeTime & 0xFF])); // the data offset specifies the number of bytes from the start of
-      // the containing moof to the first payload byte of the associated
-      // mdat
-
-      dataOffset = 32 + // tfhd
-      20 + // tfdt
-      8 + // traf header
-      16 + // mfhd
-      8 + // moof header
-      8; // mdat header
-      // audio tracks require less metadata
-
-      if (track.type === 'audio') {
-        trackFragmentRun = trun$1(track, dataOffset);
-        return box(types.traf, trackFragmentHeader, trackFragmentDecodeTime, trackFragmentRun);
-      } // video tracks should contain an independent and disposable samples
-      // box (sdtp)
-      // generate one and adjust offsets to match
-
-
-      sampleDependencyTable = sdtp(track);
-      trackFragmentRun = trun$1(track, sampleDependencyTable.length + dataOffset);
-      return box(types.traf, trackFragmentHeader, trackFragmentDecodeTime, trackFragmentRun, sampleDependencyTable);
-    };
-    /**
-     * Generate a track box.
-     * @param track {object} a track definition
-     * @return {Uint8Array} the track box
-     */
-
-
-    trak = function trak(track) {
-      track.duration = track.duration || 0xffffffff;
-      return box(types.trak, tkhd(track), mdia(track));
-    };
-
-    trex = function trex(track) {
-      var result = new Uint8Array([0x00, // version 0
-      0x00, 0x00, 0x00, // flags
-      (track.id & 0xFF000000) >> 24, (track.id & 0xFF0000) >> 16, (track.id & 0xFF00) >> 8, track.id & 0xFF, // track_ID
-      0x00, 0x00, 0x00, 0x01, // default_sample_description_index
-      0x00, 0x00, 0x00, 0x00, // default_sample_duration
-      0x00, 0x00, 0x00, 0x00, // default_sample_size
-      0x00, 0x01, 0x00, 0x01 // default_sample_flags
-      ]); // the last two bytes of default_sample_flags is the sample
-      // degradation priority, a hint about the importance of this sample
-      // relative to others. Lower the degradation priority for all sample
-      // types other than video.
-
-      if (track.type !== 'video') {
-        result[result.length - 1] = 0x00;
-      }
-
-      return box(types.trex, result);
-    };
-
-    (function () {
-      var audioTrun, videoTrun, trunHeader; // This method assumes all samples are uniform. That is, if a
-      // duration is present for the first sample, it will be present for
-      // all subsequent samples.
-      // see ISO/IEC 14496-12:2012, Section 8.8.8.1
-
-      trunHeader = function trunHeader(samples, offset) {
-        var durationPresent = 0,
-            sizePresent = 0,
-            flagsPresent = 0,
-            compositionTimeOffset = 0; // trun flag constants
-
-        if (samples.length) {
-          if (samples[0].duration !== undefined) {
-            durationPresent = 0x1;
-          }
-
-          if (samples[0].size !== undefined) {
-            sizePresent = 0x2;
-          }
-
-          if (samples[0].flags !== undefined) {
-            flagsPresent = 0x4;
-          }
-
-          if (samples[0].compositionTimeOffset !== undefined) {
-            compositionTimeOffset = 0x8;
-          }
-        }
-
-        return [0x00, // version 0
-        0x00, durationPresent | sizePresent | flagsPresent | compositionTimeOffset, 0x01, // flags
-        (samples.length & 0xFF000000) >>> 24, (samples.length & 0xFF0000) >>> 16, (samples.length & 0xFF00) >>> 8, samples.length & 0xFF, // sample_count
-        (offset & 0xFF000000) >>> 24, (offset & 0xFF0000) >>> 16, (offset & 0xFF00) >>> 8, offset & 0xFF // data_offset
-        ];
-      };
-
-      videoTrun = function videoTrun(track, offset) {
-        var bytesOffest, bytes, header, samples, sample, i;
-        samples = track.samples || [];
-        offset += 8 + 12 + 16 * samples.length;
-        header = trunHeader(samples, offset);
-        bytes = new Uint8Array(header.length + samples.length * 16);
-        bytes.set(header);
-        bytesOffest = header.length;
-
-        for (i = 0; i < samples.length; i++) {
-          sample = samples[i];
-          bytes[bytesOffest++] = (sample.duration & 0xFF000000) >>> 24;
-          bytes[bytesOffest++] = (sample.duration & 0xFF0000) >>> 16;
-          bytes[bytesOffest++] = (sample.duration & 0xFF00) >>> 8;
-          bytes[bytesOffest++] = sample.duration & 0xFF; // sample_duration
-
-          bytes[bytesOffest++] = (sample.size & 0xFF000000) >>> 24;
-          bytes[bytesOffest++] = (sample.size & 0xFF0000) >>> 16;
-          bytes[bytesOffest++] = (sample.size & 0xFF00) >>> 8;
-          bytes[bytesOffest++] = sample.size & 0xFF; // sample_size
-
-          bytes[bytesOffest++] = sample.flags.isLeading << 2 | sample.flags.dependsOn;
-          bytes[bytesOffest++] = sample.flags.isDependedOn << 6 | sample.flags.hasRedundancy << 4 | sample.flags.paddingValue << 1 | sample.flags.isNonSyncSample;
-          bytes[bytesOffest++] = sample.flags.degradationPriority & 0xF0 << 8;
-          bytes[bytesOffest++] = sample.flags.degradationPriority & 0x0F; // sample_flags
-
-          bytes[bytesOffest++] = (sample.compositionTimeOffset & 0xFF000000) >>> 24;
-          bytes[bytesOffest++] = (sample.compositionTimeOffset & 0xFF0000) >>> 16;
-          bytes[bytesOffest++] = (sample.compositionTimeOffset & 0xFF00) >>> 8;
-          bytes[bytesOffest++] = sample.compositionTimeOffset & 0xFF; // sample_composition_time_offset
-        }
-
-        return box(types.trun, bytes);
-      };
-
-      audioTrun = function audioTrun(track, offset) {
-        var bytes, bytesOffest, header, samples, sample, i;
-        samples = track.samples || [];
-        offset += 8 + 12 + 8 * samples.length;
-        header = trunHeader(samples, offset);
-        bytes = new Uint8Array(header.length + samples.length * 8);
-        bytes.set(header);
-        bytesOffest = header.length;
-
-        for (i = 0; i < samples.length; i++) {
-          sample = samples[i];
-          bytes[bytesOffest++] = (sample.duration & 0xFF000000) >>> 24;
-          bytes[bytesOffest++] = (sample.duration & 0xFF0000) >>> 16;
-          bytes[bytesOffest++] = (sample.duration & 0xFF00) >>> 8;
-          bytes[bytesOffest++] = sample.duration & 0xFF; // sample_duration
-
-          bytes[bytesOffest++] = (sample.size & 0xFF000000) >>> 24;
-          bytes[bytesOffest++] = (sample.size & 0xFF0000) >>> 16;
-          bytes[bytesOffest++] = (sample.size & 0xFF00) >>> 8;
-          bytes[bytesOffest++] = sample.size & 0xFF; // sample_size
-        }
-
-        return box(types.trun, bytes);
-      };
-
-      trun$1 = function trun(track, offset) {
-        if (track.type === 'audio') {
-          return audioTrun(track, offset);
-        }
-
-        return videoTrun(track, offset);
-      };
-    })();
-
-    var mp4Generator = {
-      ftyp: ftyp,
-      mdat: mdat,
-      moof: moof,
-      moov: moov,
-      initSegment: function initSegment(tracks) {
-        var fileType = ftyp(),
-            movie = moov(tracks),
-            result;
-        result = new Uint8Array(fileType.byteLength + movie.byteLength);
-        result.set(fileType);
-        result.set(movie, fileType.byteLength);
         return result;
-      }
+    };
+    var parseSidx_1 = parseSidx;
+
+    var ID3 = toUint8([0x49, 0x44, 0x33]);
+    var getId3Size = function getId3Size(bytes, offset) {
+        if (offset === void 0) {
+            offset = 0;
+        }
+        bytes = toUint8(bytes);
+        var flags = bytes[offset + 5];
+        var returnSize = bytes[offset + 6] << 21 | bytes[offset + 7] << 14 | bytes[offset + 8] << 7 | bytes[offset + 9];
+        var footerPresent = (flags & 16) >> 4;
+        if (footerPresent) {
+            return returnSize + 20;
+        }
+        return returnSize + 10;
+    };
+    var getId3Offset = function getId3Offset(bytes, offset) {
+        if (offset === void 0) {
+            offset = 0;
+        }
+        bytes = toUint8(bytes);
+        if (bytes.length - offset < 10 || !bytesMatch(bytes, ID3, {
+            offset: offset
+        })) {
+            return offset;
+        }
+        offset += getId3Size(bytes, offset); // recursive check for id3 tags as some files
+        // have multiple ID3 tag sections even though
+        // they should not.
+
+        return getId3Offset(bytes, offset);
+    };
+
+    var normalizePath$1 = function normalizePath(path) {
+        if (typeof path === 'string') {
+            return stringToBytes(path);
+        }
+        if (typeof path === 'number') {
+            return path;
+        }
+        return path;
+    };
+    var normalizePaths$1 = function normalizePaths(paths) {
+        if (!Array.isArray(paths)) {
+            return [normalizePath$1(paths)];
+        }
+        return paths.map(function (p) {
+            return normalizePath$1(p);
+        });
     };
     /**
-     * mux.js
+     * find any number of boxes by name given a path to it in an iso bmff
+     * such as mp4.
      *
-     * Copyright (c) Brightcove
-     * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE
+     * @param {TypedArray} bytes
+     *        bytes for the iso bmff to search for boxes in
+     *
+     * @param {Uint8Array[]|string[]|string|Uint8Array} name
+     *        An array of paths or a single path representing the name
+     *        of boxes to search through in bytes. Paths may be
+     *        uint8 (character codes) or strings.
+     *
+     * @param {boolean} [complete=false]
+     *        Should we search only for complete boxes on the final path.
+     *        This is very useful when you do not want to get back partial boxes
+     *        in the case of streaming files.
+     *
+     * @return {Uint8Array[]}
+     *         An array of the end paths that we found.
      */
-    // Convert an array of nal units into an array of frames with each frame being
-    // composed of the nal units that make up that frame
-    // Also keep track of cummulative data about the frame from the nal units such
-    // as the frame duration, starting pts, etc.
 
-    var groupNalsIntoFrames = function groupNalsIntoFrames(nalUnits) {
-      var i,
-          currentNal,
-          currentFrame = [],
-          frames = []; // TODO added for LHLS, make sure this is OK
-
-      frames.byteLength = 0;
-      frames.nalCount = 0;
-      frames.duration = 0;
-      currentFrame.byteLength = 0;
-
-      for (i = 0; i < nalUnits.length; i++) {
-        currentNal = nalUnits[i]; // Split on 'aud'-type nal units
-
-        if (currentNal.nalUnitType === 'access_unit_delimiter_rbsp') {
-          // Since the very first nal unit is expected to be an AUD
-          // only push to the frames array when currentFrame is not empty
-          if (currentFrame.length) {
-            currentFrame.duration = currentNal.dts - currentFrame.dts; // TODO added for LHLS, make sure this is OK
-
-            frames.byteLength += currentFrame.byteLength;
-            frames.nalCount += currentFrame.length;
-            frames.duration += currentFrame.duration;
-            frames.push(currentFrame);
-          }
-
-          currentFrame = [currentNal];
-          currentFrame.byteLength = currentNal.data.byteLength;
-          currentFrame.pts = currentNal.pts;
-          currentFrame.dts = currentNal.dts;
-        } else {
-          // Specifically flag key frames for ease of use later
-          if (currentNal.nalUnitType === 'slice_layer_without_partitioning_rbsp_idr') {
-            currentFrame.keyFrame = true;
-          }
-
-          currentFrame.duration = currentNal.dts - currentFrame.dts;
-          currentFrame.byteLength += currentNal.data.byteLength;
-          currentFrame.push(currentNal);
+    var findBox = function findBox(bytes, paths, complete) {
+        if (complete === void 0) {
+            complete = false;
         }
-      } // For the last frame, use the duration of the previous frame if we
-      // have nothing better to go on
-
-
-      if (frames.length && (!currentFrame.duration || currentFrame.duration <= 0)) {
-        currentFrame.duration = frames[frames.length - 1].duration;
-      } // Push the final frame
-      // TODO added for LHLS, make sure this is OK
-
-
-      frames.byteLength += currentFrame.byteLength;
-      frames.nalCount += currentFrame.length;
-      frames.duration += currentFrame.duration;
-      frames.push(currentFrame);
-      return frames;
-    }; // Convert an array of frames into an array of Gop with each Gop being composed
-    // of the frames that make up that Gop
-    // Also keep track of cummulative data about the Gop from the frames such as the
-    // Gop duration, starting pts, etc.
-
-
-    var groupFramesIntoGops = function groupFramesIntoGops(frames) {
-      var i,
-          currentFrame,
-          currentGop = [],
-          gops = []; // We must pre-set some of the values on the Gop since we
-      // keep running totals of these values
-
-      currentGop.byteLength = 0;
-      currentGop.nalCount = 0;
-      currentGop.duration = 0;
-      currentGop.pts = frames[0].pts;
-      currentGop.dts = frames[0].dts; // store some metadata about all the Gops
-
-      gops.byteLength = 0;
-      gops.nalCount = 0;
-      gops.duration = 0;
-      gops.pts = frames[0].pts;
-      gops.dts = frames[0].dts;
-
-      for (i = 0; i < frames.length; i++) {
-        currentFrame = frames[i];
-
-        if (currentFrame.keyFrame) {
-          // Since the very first frame is expected to be an keyframe
-          // only push to the gops array when currentGop is not empty
-          if (currentGop.length) {
-            gops.push(currentGop);
-            gops.byteLength += currentGop.byteLength;
-            gops.nalCount += currentGop.nalCount;
-            gops.duration += currentGop.duration;
-          }
-
-          currentGop = [currentFrame];
-          currentGop.nalCount = currentFrame.length;
-          currentGop.byteLength = currentFrame.byteLength;
-          currentGop.pts = currentFrame.pts;
-          currentGop.dts = currentFrame.dts;
-          currentGop.duration = currentFrame.duration;
-        } else {
-          currentGop.duration += currentFrame.duration;
-          currentGop.nalCount += currentFrame.length;
-          currentGop.byteLength += currentFrame.byteLength;
-          currentGop.push(currentFrame);
+        paths = normalizePaths$1(paths);
+        bytes = toUint8(bytes);
+        var results = [];
+        if (!paths.length) {
+            // short-circuit the search for empty paths
+            return results;
         }
-      }
+        var i = 0;
+        while (i < bytes.length) {
+            var size = (bytes[i] << 24 | bytes[i + 1] << 16 | bytes[i + 2] << 8 | bytes[i + 3]) >>> 0;
+            var type = bytes.subarray(i + 4, i + 8); // invalid box format.
 
-      if (gops.length && currentGop.duration <= 0) {
-        currentGop.duration = gops[gops.length - 1].duration;
-      }
+            if (size === 0) {
+                break;
+            }
+            var end = i + size;
+            if (end > bytes.length) {
+                // this box is bigger than the number of bytes we have
+                // and complete is set, we cannot find any more boxes.
+                if (complete) {
+                    break;
+                }
+                end = bytes.length;
+            }
+            var data = bytes.subarray(i + 8, end);
+            if (bytesMatch(type, paths[0])) {
+                if (paths.length === 1) {
+                    // this is the end of the path and we've found the box we were
+                    // looking for
+                    results.push(data);
+                } else {
+                    // recursively search for the next box along the path
+                    results.push.apply(results, findBox(data, paths.slice(1), complete));
+                }
+            }
+            i = end;
+        } // we've finished searching all of bytes
 
-      gops.byteLength += currentGop.byteLength;
-      gops.nalCount += currentGop.nalCount;
-      gops.duration += currentGop.duration; // push the final Gop
-
-      gops.push(currentGop);
-      return gops;
+        return results;
     };
-    /*
-     * Search for the first keyframe in the GOPs and throw away all frames
-     * until that keyframe. Then extend the duration of the pulled keyframe
-     * and pull the PTS and DTS of the keyframe so that it covers the time
-     * range of the frames that were disposed.
-     *
-     * @param {Array} gops video GOPs
-     * @returns {Array} modified video GOPs
-     */
 
+    // https://matroska-org.github.io/libebml/specs.html
+    // https://www.matroska.org/technical/elements.html
+    // https://www.webmproject.org/docs/container/
 
-    var extendFirstKeyFrame = function extendFirstKeyFrame(gops) {
-      var currentGop;
-
-      if (!gops[0][0].keyFrame && gops.length > 1) {
-        // Remove the first GOP
-        currentGop = gops.shift();
-        gops.byteLength -= currentGop.byteLength;
-        gops.nalCount -= currentGop.nalCount; // Extend the first frame of what is now the
-        // first gop to cover the time period of the
-        // frames we just removed
-
-        gops[0][0].dts = currentGop.dts;
-        gops[0][0].pts = currentGop.pts;
-        gops[0][0].duration += currentGop.duration;
-      }
-
-      return gops;
+    var EBML_TAGS = {
+        EBML: toUint8([0x1A, 0x45, 0xDF, 0xA3]),
+        DocType: toUint8([0x42, 0x82]),
+        Segment: toUint8([0x18, 0x53, 0x80, 0x67]),
+        SegmentInfo: toUint8([0x15, 0x49, 0xA9, 0x66]),
+        Tracks: toUint8([0x16, 0x54, 0xAE, 0x6B]),
+        Track: toUint8([0xAE]),
+        TrackNumber: toUint8([0xd7]),
+        DefaultDuration: toUint8([0x23, 0xe3, 0x83]),
+        TrackEntry: toUint8([0xAE]),
+        TrackType: toUint8([0x83]),
+        FlagDefault: toUint8([0x88]),
+        CodecID: toUint8([0x86]),
+        CodecPrivate: toUint8([0x63, 0xA2]),
+        VideoTrack: toUint8([0xe0]),
+        AudioTrack: toUint8([0xe1]),
+        // Not used yet, but will be used for live webm/mkv
+        // see https://www.matroska.org/technical/basics.html#block-structure
+        // see https://www.matroska.org/technical/basics.html#simpleblock-structure
+        Cluster: toUint8([0x1F, 0x43, 0xB6, 0x75]),
+        Timestamp: toUint8([0xE7]),
+        TimestampScale: toUint8([0x2A, 0xD7, 0xB1]),
+        BlockGroup: toUint8([0xA0]),
+        BlockDuration: toUint8([0x9B]),
+        Block: toUint8([0xA1]),
+        SimpleBlock: toUint8([0xA3])
     };
     /**
-     * Default sample object
-     * see ISO/IEC 14496-12:2012, section 8.6.4.3
+     * This is a simple table to determine the length
+     * of things in ebml. The length is one based (starts at 1,
+     * rather than zero) and for every zero bit before a one bit
+     * we add one to length. We also need this table because in some
+     * case we have to xor all the length bits from another value.
      */
 
-
-    var createDefaultSample = function createDefaultSample() {
-      return {
-        size: 0,
-        flags: {
-          isLeading: 0,
-          dependsOn: 1,
-          isDependedOn: 0,
-          hasRedundancy: 0,
-          degradationPriority: 0,
-          isNonSyncSample: 1
+    var LENGTH_TABLE = [128, 64, 32, 16, 8, 4, 2, 1];
+    var getLength = function getLength(byte) {
+        var len = 1;
+        for (var i = 0; i < LENGTH_TABLE.length; i++) {
+            if (byte & LENGTH_TABLE[i]) {
+                break;
+            }
+            len++;
         }
-      };
-    };
-    /*
-     * Collates information from a video frame into an object for eventual
-     * entry into an MP4 sample table.
-     *
-     * @param {Object} frame the video frame
-     * @param {Number} dataOffset the byte offset to position the sample
-     * @return {Object} object containing sample table info for a frame
-     */
+        return len;
+    }; // length in ebml is stored in the first 4 to 8 bits
+    // of the first byte. 4 for the id length and 8 for the
+    // data size length. Length is measured by converting the number to binary
+    // then 1 + the number of zeros before a 1 is encountered starting
+    // from the left.
 
-
-    var sampleForFrame = function sampleForFrame(frame, dataOffset) {
-      var sample = createDefaultSample();
-      sample.dataOffset = dataOffset;
-      sample.compositionTimeOffset = frame.pts - frame.dts;
-      sample.duration = frame.duration;
-      sample.size = 4 * frame.length; // Space for nal unit size
-
-      sample.size += frame.byteLength;
-
-      if (frame.keyFrame) {
-        sample.flags.dependsOn = 2;
-        sample.flags.isNonSyncSample = 0;
-      }
-
-      return sample;
-    }; // generate the track's sample table from an array of gops
-
-
-    var generateSampleTable$1 = function generateSampleTable(gops, baseDataOffset) {
-      var h,
-          i,
-          sample,
-          currentGop,
-          currentFrame,
-          dataOffset = baseDataOffset || 0,
-          samples = [];
-
-      for (h = 0; h < gops.length; h++) {
-        currentGop = gops[h];
-
-        for (i = 0; i < currentGop.length; i++) {
-          currentFrame = currentGop[i];
-          sample = sampleForFrame(currentFrame, dataOffset);
-          dataOffset += sample.size;
-          samples.push(sample);
+    var getvint = function getvint(bytes, offset, removeLength, signed) {
+        if (removeLength === void 0) {
+            removeLength = true;
         }
-      }
-
-      return samples;
-    }; // generate the track's raw mdat data from an array of gops
-
-
-    var concatenateNalData = function concatenateNalData(gops) {
-      var h,
-          i,
-          j,
-          currentGop,
-          currentFrame,
-          currentNal,
-          dataOffset = 0,
-          nalsByteLength = gops.byteLength,
-          numberOfNals = gops.nalCount,
-          totalByteLength = nalsByteLength + 4 * numberOfNals,
-          data = new Uint8Array(totalByteLength),
-          view = new DataView(data.buffer); // For each Gop..
-
-      for (h = 0; h < gops.length; h++) {
-        currentGop = gops[h]; // For each Frame..
-
-        for (i = 0; i < currentGop.length; i++) {
-          currentFrame = currentGop[i]; // For each NAL..
-
-          for (j = 0; j < currentFrame.length; j++) {
-            currentNal = currentFrame[j];
-            view.setUint32(dataOffset, currentNal.data.byteLength);
-            dataOffset += 4;
-            data.set(currentNal.data, dataOffset);
-            dataOffset += currentNal.data.byteLength;
-          }
+        if (signed === void 0) {
+            signed = false;
         }
-      }
+        var length = getLength(bytes[offset]);
+        var valueBytes = bytes.subarray(offset, offset + length); // NOTE that we do **not** subarray here because we need to copy these bytes
+        // as they will be modified below to remove the dataSizeLen bits and we do not
+        // want to modify the original data. normally we could just call slice on
+        // uint8array but ie 11 does not support that...
 
-      return data;
-    }; // generate the track's sample table from a frame
-
-
-    var generateSampleTableForFrame = function generateSampleTableForFrame(frame, baseDataOffset) {
-      var sample,
-          dataOffset = baseDataOffset || 0,
-          samples = [];
-      sample = sampleForFrame(frame, dataOffset);
-      samples.push(sample);
-      return samples;
-    }; // generate the track's raw mdat data from a frame
-
-
-    var concatenateNalDataForFrame = function concatenateNalDataForFrame(frame) {
-      var i,
-          currentNal,
-          dataOffset = 0,
-          nalsByteLength = frame.byteLength,
-          numberOfNals = frame.length,
-          totalByteLength = nalsByteLength + 4 * numberOfNals,
-          data = new Uint8Array(totalByteLength),
-          view = new DataView(data.buffer); // For each NAL..
-
-      for (i = 0; i < frame.length; i++) {
-        currentNal = frame[i];
-        view.setUint32(dataOffset, currentNal.data.byteLength);
-        dataOffset += 4;
-        data.set(currentNal.data, dataOffset);
-        dataOffset += currentNal.data.byteLength;
-      }
-
-      return data;
-    };
-
-    var frameUtils = {
-      groupNalsIntoFrames: groupNalsIntoFrames,
-      groupFramesIntoGops: groupFramesIntoGops,
-      extendFirstKeyFrame: extendFirstKeyFrame,
-      generateSampleTable: generateSampleTable$1,
-      concatenateNalData: concatenateNalData,
-      generateSampleTableForFrame: generateSampleTableForFrame,
-      concatenateNalDataForFrame: concatenateNalDataForFrame
-    };
-    /**
-     * mux.js
-     *
-     * Copyright (c) Brightcove
-     * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE
-     */
-
-    var highPrefix = [33, 16, 5, 32, 164, 27];
-    var lowPrefix = [33, 65, 108, 84, 1, 2, 4, 8, 168, 2, 4, 8, 17, 191, 252];
-
-    var zeroFill = function zeroFill(count) {
-      var a = [];
-
-      while (count--) {
-        a.push(0);
-      }
-
-      return a;
-    };
-
-    var makeTable = function makeTable(metaTable) {
-      return Object.keys(metaTable).reduce(function (obj, key) {
-        obj[key] = new Uint8Array(metaTable[key].reduce(function (arr, part) {
-          return arr.concat(part);
-        }, []));
-        return obj;
-      }, {});
-    };
-
-    var silence;
-
-    var silence_1 = function silence_1() {
-      if (!silence) {
-        // Frames-of-silence to use for filling in missing AAC frames
-        var coneOfSilence = {
-          96000: [highPrefix, [227, 64], zeroFill(154), [56]],
-          88200: [highPrefix, [231], zeroFill(170), [56]],
-          64000: [highPrefix, [248, 192], zeroFill(240), [56]],
-          48000: [highPrefix, [255, 192], zeroFill(268), [55, 148, 128], zeroFill(54), [112]],
-          44100: [highPrefix, [255, 192], zeroFill(268), [55, 163, 128], zeroFill(84), [112]],
-          32000: [highPrefix, [255, 192], zeroFill(268), [55, 234], zeroFill(226), [112]],
-          24000: [highPrefix, [255, 192], zeroFill(268), [55, 255, 128], zeroFill(268), [111, 112], zeroFill(126), [224]],
-          16000: [highPrefix, [255, 192], zeroFill(268), [55, 255, 128], zeroFill(268), [111, 255], zeroFill(269), [223, 108], zeroFill(195), [1, 192]],
-          12000: [lowPrefix, zeroFill(268), [3, 127, 248], zeroFill(268), [6, 255, 240], zeroFill(268), [13, 255, 224], zeroFill(268), [27, 253, 128], zeroFill(259), [56]],
-          11025: [lowPrefix, zeroFill(268), [3, 127, 248], zeroFill(268), [6, 255, 240], zeroFill(268), [13, 255, 224], zeroFill(268), [27, 255, 192], zeroFill(268), [55, 175, 128], zeroFill(108), [112]],
-          8000: [lowPrefix, zeroFill(268), [3, 121, 16], zeroFill(47), [7]]
+        if (removeLength) {
+            valueBytes = Array.prototype.slice.call(bytes, offset, offset + length);
+            valueBytes[0] ^= LENGTH_TABLE[length - 1];
+        }
+        return {
+            length: length,
+            value: bytesToNumber(valueBytes, {
+                signed: signed
+            }),
+            bytes: valueBytes
         };
-        silence = makeTable(coneOfSilence);
-      }
-
-      return silence;
     };
+    var normalizePath = function normalizePath(path) {
+        if (typeof path === 'string') {
+            return path.match(/.{1,2}/g).map(function (p) {
+                return normalizePath(p);
+            });
+        }
+        if (typeof path === 'number') {
+            return numberToBytes(path);
+        }
+        return path;
+    };
+    var normalizePaths = function normalizePaths(paths) {
+        if (!Array.isArray(paths)) {
+            return [normalizePath(paths)];
+        }
+        return paths.map(function (p) {
+            return normalizePath(p);
+        });
+    };
+    var getInfinityDataSize = function getInfinityDataSize(id, bytes, offset) {
+        if (offset >= bytes.length) {
+            return bytes.length;
+        }
+        var innerid = getvint(bytes, offset, false);
+        if (bytesMatch(id.bytes, innerid.bytes)) {
+            return offset;
+        }
+        var dataHeader = getvint(bytes, offset + innerid.length);
+        return getInfinityDataSize(id, bytes, offset + dataHeader.length + dataHeader.value + innerid.length);
+    };
+    /**
+     * Notes on the EBLM format.
+     *
+     * EBLM uses "vints" tags. Every vint tag contains
+     * two parts
+     *
+     * 1. The length from the first byte. You get this by
+     *    converting the byte to binary and counting the zeros
+     *    before a 1. Then you add 1 to that. Examples
+     *    00011111 = length 4 because there are 3 zeros before a 1.
+     *    00100000 = length 3 because there are 2 zeros before a 1.
+     *    00000011 = length 7 because there are 6 zeros before a 1.
+     *
+     * 2. The bits used for length are removed from the first byte
+     *    Then all the bytes are merged into a value. NOTE: this
+     *    is not the case for id ebml tags as there id includes
+     *    length bits.
+     *
+     */
+
+    var findEbml = function findEbml(bytes, paths) {
+        paths = normalizePaths(paths);
+        bytes = toUint8(bytes);
+        var results = [];
+        if (!paths.length) {
+            return results;
+        }
+        var i = 0;
+        while (i < bytes.length) {
+            var id = getvint(bytes, i, false);
+            var dataHeader = getvint(bytes, i + id.length);
+            var dataStart = i + id.length + dataHeader.length; // dataSize is unknown or this is a live stream
+
+            if (dataHeader.value === 0x7f) {
+                dataHeader.value = getInfinityDataSize(id, bytes, dataStart);
+                if (dataHeader.value !== bytes.length) {
+                    dataHeader.value -= dataStart;
+                }
+            }
+            var dataEnd = dataStart + dataHeader.value > bytes.length ? bytes.length : dataStart + dataHeader.value;
+            var data = bytes.subarray(dataStart, dataEnd);
+            if (bytesMatch(paths[0], id.bytes)) {
+                if (paths.length === 1) {
+                    // this is the end of the paths and we've found the tag we were
+                    // looking for
+                    results.push(data);
+                } else {
+                    // recursively search for the next tag inside of the data
+                    // of this one
+                    results = results.concat(findEbml(data, paths.slice(1)));
+                }
+            }
+            var totalLength = id.length + dataHeader.length + data.length; // move past this tag entirely, we are not looking for it
+
+            i += totalLength;
+        }
+        return results;
+    }; // see https://www.matroska.org/technical/basics.html#block-structure
+
+    var NAL_TYPE_ONE = toUint8([0x00, 0x00, 0x00, 0x01]);
+    var NAL_TYPE_TWO = toUint8([0x00, 0x00, 0x01]);
+    var EMULATION_PREVENTION = toUint8([0x00, 0x00, 0x03]);
+    /**
+     * Expunge any "Emulation Prevention" bytes from a "Raw Byte
+     * Sequence Payload"
+     *
+     * @param data {Uint8Array} the bytes of a RBSP from a NAL
+     * unit
+     * @return {Uint8Array} the RBSP without any Emulation
+     * Prevention Bytes
+     */
+
+    var discardEmulationPreventionBytes = function discardEmulationPreventionBytes(bytes) {
+        var positions = [];
+        var i = 1; // Find all `Emulation Prevention Bytes`
+
+        while (i < bytes.length - 2) {
+            if (bytesMatch(bytes.subarray(i, i + 3), EMULATION_PREVENTION)) {
+                positions.push(i + 2);
+                i++;
+            }
+            i++;
+        } // If no Emulation Prevention Bytes were found just return the original
+        // array
+
+        if (positions.length === 0) {
+            return bytes;
+        } // Create a new array to hold the NAL unit data
+
+        var newLength = bytes.length - positions.length;
+        var newData = new Uint8Array(newLength);
+        var sourceIndex = 0;
+        for (i = 0; i < newLength; sourceIndex++, i++) {
+            if (sourceIndex === positions[0]) {
+                // Skip this byte
+                sourceIndex++; // Remove this position index
+
+                positions.shift();
+            }
+            newData[i] = bytes[sourceIndex];
+        }
+        return newData;
+    };
+    var findNal = function findNal(bytes, dataType, types, nalLimit) {
+        if (nalLimit === void 0) {
+            nalLimit = Infinity;
+        }
+        bytes = toUint8(bytes);
+        types = [].concat(types);
+        var i = 0;
+        var nalStart;
+        var nalsFound = 0; // keep searching until:
+        // we reach the end of bytes
+        // we reach the maximum number of nals they want to seach
+        // NOTE: that we disregard nalLimit when we have found the start
+        // of the nal we want so that we can find the end of the nal we want.
+
+        while (i < bytes.length && (nalsFound < nalLimit || nalStart)) {
+            var nalOffset = void 0;
+            if (bytesMatch(bytes.subarray(i), NAL_TYPE_ONE)) {
+                nalOffset = 4;
+            } else if (bytesMatch(bytes.subarray(i), NAL_TYPE_TWO)) {
+                nalOffset = 3;
+            } // we are unsynced,
+            // find the next nal unit
+
+            if (!nalOffset) {
+                i++;
+                continue;
+            }
+            nalsFound++;
+            if (nalStart) {
+                return discardEmulationPreventionBytes(bytes.subarray(nalStart, i));
+            }
+            var nalType = void 0;
+            if (dataType === 'h264') {
+                nalType = bytes[i + nalOffset] & 0x1f;
+            } else if (dataType === 'h265') {
+                nalType = bytes[i + nalOffset] >> 1 & 0x3f;
+            }
+            if (types.indexOf(nalType) !== -1) {
+                nalStart = i + nalOffset;
+            } // nal header is 1 length for h264, and 2 for h265
+
+            i += nalOffset + (dataType === 'h264' ? 1 : 2);
+        }
+        return bytes.subarray(0, 0);
+    };
+    var findH264Nal = function findH264Nal(bytes, type, nalLimit) {
+        return findNal(bytes, 'h264', type, nalLimit);
+    };
+    var findH265Nal = function findH265Nal(bytes, type, nalLimit) {
+        return findNal(bytes, 'h265', type, nalLimit);
+    };
+
+    var CONSTANTS = {
+        // "webm" string literal in hex
+        'webm': toUint8([0x77, 0x65, 0x62, 0x6d]),
+        // "matroska" string literal in hex
+        'matroska': toUint8([0x6d, 0x61, 0x74, 0x72, 0x6f, 0x73, 0x6b, 0x61]),
+        // "fLaC" string literal in hex
+        'flac': toUint8([0x66, 0x4c, 0x61, 0x43]),
+        // "OggS" string literal in hex
+        'ogg': toUint8([0x4f, 0x67, 0x67, 0x53]),
+        // ac-3 sync byte, also works for ec-3 as that is simply a codec
+        // of ac-3
+        'ac3': toUint8([0x0b, 0x77]),
+        // "RIFF" string literal in hex used for wav and avi
+        'riff': toUint8([0x52, 0x49, 0x46, 0x46]),
+        // "AVI" string literal in hex
+        'avi': toUint8([0x41, 0x56, 0x49]),
+        // "WAVE" string literal in hex
+        'wav': toUint8([0x57, 0x41, 0x56, 0x45]),
+        // "ftyp3g" string literal in hex
+        '3gp': toUint8([0x66, 0x74, 0x79, 0x70, 0x33, 0x67]),
+        // "ftyp" string literal in hex
+        'mp4': toUint8([0x66, 0x74, 0x79, 0x70]),
+        // "styp" string literal in hex
+        'fmp4': toUint8([0x73, 0x74, 0x79, 0x70]),
+        // "ftypqt" string literal in hex
+        'mov': toUint8([0x66, 0x74, 0x79, 0x70, 0x71, 0x74]),
+        // moov string literal in hex
+        'moov': toUint8([0x6D, 0x6F, 0x6F, 0x76]),
+        // moof string literal in hex
+        'moof': toUint8([0x6D, 0x6F, 0x6F, 0x66])
+    };
+    var _isLikely = {
+        aac: function aac(bytes) {
+            var offset = getId3Offset(bytes);
+            return bytesMatch(bytes, [0xFF, 0x10], {
+                offset: offset,
+                mask: [0xFF, 0x16]
+            });
+        },
+        mp3: function mp3(bytes) {
+            var offset = getId3Offset(bytes);
+            return bytesMatch(bytes, [0xFF, 0x02], {
+                offset: offset,
+                mask: [0xFF, 0x06]
+            });
+        },
+        webm: function webm(bytes) {
+            var docType = findEbml(bytes, [EBML_TAGS.EBML, EBML_TAGS.DocType])[0]; // check if DocType EBML tag is webm
+
+            return bytesMatch(docType, CONSTANTS.webm);
+        },
+        mkv: function mkv(bytes) {
+            var docType = findEbml(bytes, [EBML_TAGS.EBML, EBML_TAGS.DocType])[0]; // check if DocType EBML tag is matroska
+
+            return bytesMatch(docType, CONSTANTS.matroska);
+        },
+        mp4: function mp4(bytes) {
+            // if this file is another base media file format, it is not mp4
+            if (_isLikely['3gp'](bytes) || _isLikely.mov(bytes)) {
+                return false;
+            } // if this file starts with a ftyp or styp box its mp4
+
+            if (bytesMatch(bytes, CONSTANTS.mp4, {
+                offset: 4
+            }) || bytesMatch(bytes, CONSTANTS.fmp4, {
+                offset: 4
+            })) {
+                return true;
+            } // if this file starts with a moof/moov box its mp4
+
+            if (bytesMatch(bytes, CONSTANTS.moof, {
+                offset: 4
+            }) || bytesMatch(bytes, CONSTANTS.moov, {
+                offset: 4
+            })) {
+                return true;
+            }
+        },
+        mov: function mov(bytes) {
+            return bytesMatch(bytes, CONSTANTS.mov, {
+                offset: 4
+            });
+        },
+        '3gp': function gp(bytes) {
+            return bytesMatch(bytes, CONSTANTS['3gp'], {
+                offset: 4
+            });
+        },
+        ac3: function ac3(bytes) {
+            var offset = getId3Offset(bytes);
+            return bytesMatch(bytes, CONSTANTS.ac3, {
+                offset: offset
+            });
+        },
+        ts: function ts(bytes) {
+            if (bytes.length < 189 && bytes.length >= 1) {
+                return bytes[0] === 0x47;
+            }
+            var i = 0; // check the first 376 bytes for two matching sync bytes
+
+            while (i + 188 < bytes.length && i < 188) {
+                if (bytes[i] === 0x47 && bytes[i + 188] === 0x47) {
+                    return true;
+                }
+                i += 1;
+            }
+            return false;
+        },
+        flac: function flac(bytes) {
+            var offset = getId3Offset(bytes);
+            return bytesMatch(bytes, CONSTANTS.flac, {
+                offset: offset
+            });
+        },
+        ogg: function ogg(bytes) {
+            return bytesMatch(bytes, CONSTANTS.ogg);
+        },
+        avi: function avi(bytes) {
+            return bytesMatch(bytes, CONSTANTS.riff) && bytesMatch(bytes, CONSTANTS.avi, {
+                offset: 8
+            });
+        },
+        wav: function wav(bytes) {
+            return bytesMatch(bytes, CONSTANTS.riff) && bytesMatch(bytes, CONSTANTS.wav, {
+                offset: 8
+            });
+        },
+        'h264': function h264(bytes) {
+            // find seq_parameter_set_rbsp
+            return findH264Nal(bytes, 7, 3).length;
+        },
+        'h265': function h265(bytes) {
+            // find video_parameter_set_rbsp or seq_parameter_set_rbsp
+            return findH265Nal(bytes, [32, 33], 3).length;
+        }
+    }; // get all the isLikely functions
+    // but make sure 'ts' is above h264 and h265
+    // but below everything else as it is the least specific
+
+    var isLikelyTypes = Object.keys(_isLikely) // remove ts, h264, h265
+        .filter(function (t) {
+            return t !== 'ts' && t !== 'h264' && t !== 'h265';
+        }) // add it back to the bottom
+        .concat(['ts', 'h264', 'h265']); // make sure we are dealing with uint8 data.
+
+    isLikelyTypes.forEach(function (type) {
+        var isLikelyFn = _isLikely[type];
+        _isLikely[type] = function (bytes) {
+            return isLikelyFn(toUint8(bytes));
+        };
+    }); // export after wrapping
+
+    var isLikely = _isLikely; // A useful list of file signatures can be found here
+    // https://en.wikipedia.org/wiki/List_of_file_signatures
+
+    var detectContainerForBytes = function detectContainerForBytes(bytes) {
+        bytes = toUint8(bytes);
+        for (var i = 0; i < isLikelyTypes.length; i++) {
+            var type = isLikelyTypes[i];
+            if (isLikely[type](bytes)) {
+                return type;
+            }
+        }
+        return '';
+    }; // fmp4 is not a container
+
+    var isLikelyFmp4MediaSegment = function isLikelyFmp4MediaSegment(bytes) {
+        return findBox(bytes, ['moof']).length > 0;
+    };
+
     /**
      * mux.js
      *
      * Copyright (c) Brightcove
      * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE
      */
-
-
-    var ONE_SECOND_IN_TS$4 = 90000,
+    var ONE_SECOND_IN_TS = 90000,
         // 90kHz clock
-    secondsToVideoTs,
+        secondsToVideoTs,
         secondsToAudioTs,
         videoTsToSeconds,
         audioTsToSeconds,
         audioTsToVideoTs,
         videoTsToAudioTs,
         metadataTsToSeconds;
-
-    secondsToVideoTs = function secondsToVideoTs(seconds) {
-      return seconds * ONE_SECOND_IN_TS$4;
+    secondsToVideoTs = function (seconds) {
+        return seconds * ONE_SECOND_IN_TS;
+    };
+    secondsToAudioTs = function (seconds, sampleRate) {
+        return seconds * sampleRate;
+    };
+    videoTsToSeconds = function (timestamp) {
+        return timestamp / ONE_SECOND_IN_TS;
+    };
+    audioTsToSeconds = function (timestamp, sampleRate) {
+        return timestamp / sampleRate;
+    };
+    audioTsToVideoTs = function (timestamp, sampleRate) {
+        return secondsToVideoTs(audioTsToSeconds(timestamp, sampleRate));
+    };
+    videoTsToAudioTs = function (timestamp, sampleRate) {
+        return secondsToAudioTs(videoTsToSeconds(timestamp), sampleRate);
     };
 
-    secondsToAudioTs = function secondsToAudioTs(seconds, sampleRate) {
-      return seconds * sampleRate;
-    };
-
-    videoTsToSeconds = function videoTsToSeconds(timestamp) {
-      return timestamp / ONE_SECOND_IN_TS$4;
-    };
-
-    audioTsToSeconds = function audioTsToSeconds(timestamp, sampleRate) {
-      return timestamp / sampleRate;
-    };
-
-    audioTsToVideoTs = function audioTsToVideoTs(timestamp, sampleRate) {
-      return secondsToVideoTs(audioTsToSeconds(timestamp, sampleRate));
-    };
-
-    videoTsToAudioTs = function videoTsToAudioTs(timestamp, sampleRate) {
-      return secondsToAudioTs(videoTsToSeconds(timestamp), sampleRate);
-    };
     /**
      * Adjust ID3 tag or caption timing information by the timeline pts values
      * (if keepOriginalTimestamps is false) and convert to seconds
      */
-
-
-    metadataTsToSeconds = function metadataTsToSeconds(timestamp, timelineStartPts, keepOriginalTimestamps) {
-      return videoTsToSeconds(keepOriginalTimestamps ? timestamp : timestamp - timelineStartPts);
+    metadataTsToSeconds = function (timestamp, timelineStartPts, keepOriginalTimestamps) {
+        return videoTsToSeconds(keepOriginalTimestamps ? timestamp : timestamp - timelineStartPts);
     };
-
     var clock = {
-      ONE_SECOND_IN_TS: ONE_SECOND_IN_TS$4,
-      secondsToVideoTs: secondsToVideoTs,
-      secondsToAudioTs: secondsToAudioTs,
-      videoTsToSeconds: videoTsToSeconds,
-      audioTsToSeconds: audioTsToSeconds,
-      audioTsToVideoTs: audioTsToVideoTs,
-      videoTsToAudioTs: videoTsToAudioTs,
-      metadataTsToSeconds: metadataTsToSeconds
+        ONE_SECOND_IN_TS: ONE_SECOND_IN_TS,
+        secondsToVideoTs: secondsToVideoTs,
+        secondsToAudioTs: secondsToAudioTs,
+        videoTsToSeconds: videoTsToSeconds,
+        audioTsToSeconds: audioTsToSeconds,
+        audioTsToVideoTs: audioTsToVideoTs,
+        videoTsToAudioTs: videoTsToAudioTs,
+        metadataTsToSeconds: metadataTsToSeconds
     };
+    var clock_1 = clock.ONE_SECOND_IN_TS;
+
+    /*! @name @videojs/http-streaming @version 3.0.2 @license Apache-2.0 */
+
     /**
-     * mux.js
+     * @file resolve-url.js - Handling how URLs are resolved and manipulated
+     */
+    const resolveUrl = resolveUrl$2;
+    /**
+     * If the xhr request was redirected, return the responseURL, otherwise,
+     * return the original url.
      *
-     * Copyright (c) Brightcove
-     * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE
+     * @api private
+     *
+     * @param  {string} url - an url being requested
+     * @param  {XMLHttpRequest} req - xhr request result
+     *
+     * @return {string}
      */
 
+    const resolveManifestRedirect = (url, req) => {
+        // To understand how the responseURL below is set and generated:
+        // - https://fetch.spec.whatwg.org/#concept-response-url
+        // - https://fetch.spec.whatwg.org/#atomic-http-redirect-handling
+        if (req && req.responseURL && url !== req.responseURL) {
+            return req.responseURL;
+        }
+        return url;
+    };
+    const logger = source => {
+        if (videojs.log.debug) {
+            return videojs.log.debug.bind(videojs, 'VHS:', `${source} >`);
+        }
+        return function () {};
+    };
+
     /**
-     * Sum the `byteLength` properties of the data in each AAC frame
+     * Provides a compatibility layer between Video.js 7 and 8 API changes for VHS.
+     */
+    /**
+     * Delegates to videojs.obj.merge (Video.js 8) or
+     * videojs.mergeOptions (Video.js 7).
      */
 
-    var sumFrameByteLengths = function sumFrameByteLengths(array) {
-      var i,
-          currentObj,
-          sum = 0; // sum the byteLength's all each nal unit in the frame
-
-      for (i = 0; i < array.length; i++) {
-        currentObj = array[i];
-        sum += currentObj.data.byteLength;
-      }
-
-      return sum;
-    }; // Possibly pad (prefix) the audio track with silence if appending this track
-    // would lead to the introduction of a gap in the audio buffer
-
-
-    var prefixWithSilence = function prefixWithSilence(track, frames, audioAppendStartTs, videoBaseMediaDecodeTime) {
-      var baseMediaDecodeTimeTs,
-          frameDuration = 0,
-          audioGapDuration = 0,
-          audioFillFrameCount = 0,
-          audioFillDuration = 0,
-          silentFrame,
-          i,
-          firstFrame;
-
-      if (!frames.length) {
-        return;
-      }
-
-      baseMediaDecodeTimeTs = clock.audioTsToVideoTs(track.baseMediaDecodeTime, track.samplerate); // determine frame clock duration based on sample rate, round up to avoid overfills
-
-      frameDuration = Math.ceil(clock.ONE_SECOND_IN_TS / (track.samplerate / 1024));
-
-      if (audioAppendStartTs && videoBaseMediaDecodeTime) {
-        // insert the shortest possible amount (audio gap or audio to video gap)
-        audioGapDuration = baseMediaDecodeTimeTs - Math.max(audioAppendStartTs, videoBaseMediaDecodeTime); // number of full frames in the audio gap
-
-        audioFillFrameCount = Math.floor(audioGapDuration / frameDuration);
-        audioFillDuration = audioFillFrameCount * frameDuration;
-      } // don't attempt to fill gaps smaller than a single frame or larger
-      // than a half second
-
-
-      if (audioFillFrameCount < 1 || audioFillDuration > clock.ONE_SECOND_IN_TS / 2) {
-        return;
-      }
-
-      silentFrame = silence_1()[track.samplerate];
-
-      if (!silentFrame) {
-        // we don't have a silent frame pregenerated for the sample rate, so use a frame
-        // from the content instead
-        silentFrame = frames[0].data;
-      }
-
-      for (i = 0; i < audioFillFrameCount; i++) {
-        firstFrame = frames[0];
-        frames.splice(0, 0, {
-          data: silentFrame,
-          dts: firstFrame.dts - frameDuration,
-          pts: firstFrame.pts - frameDuration
-        });
-      }
-
-      track.baseMediaDecodeTime -= Math.floor(clock.videoTsToAudioTs(audioFillDuration, track.samplerate));
-      return audioFillDuration;
-    }; // If the audio segment extends before the earliest allowed dts
-    // value, remove AAC frames until starts at or after the earliest
-    // allowed DTS so that we don't end up with a negative baseMedia-
-    // DecodeTime for the audio track
-
-
-    var trimAdtsFramesByEarliestDts = function trimAdtsFramesByEarliestDts(adtsFrames, track, earliestAllowedDts) {
-      if (track.minSegmentDts >= earliestAllowedDts) {
-        return adtsFrames;
-      } // We will need to recalculate the earliest segment Dts
-
-
-      track.minSegmentDts = Infinity;
-      return adtsFrames.filter(function (currentFrame) {
-        // If this is an allowed frame, keep it and record it's Dts
-        if (currentFrame.dts >= earliestAllowedDts) {
-          track.minSegmentDts = Math.min(track.minSegmentDts, currentFrame.dts);
-          track.minSegmentPts = track.minSegmentDts;
-          return true;
-        } // Otherwise, discard it
-
-
-        return false;
-      });
-    }; // generate the track's raw mdat data from an array of frames
-
-
-    var generateSampleTable = function generateSampleTable(frames) {
-      var i,
-          currentFrame,
-          samples = [];
-
-      for (i = 0; i < frames.length; i++) {
-        currentFrame = frames[i];
-        samples.push({
-          size: currentFrame.data.byteLength,
-          duration: 1024 // For AAC audio, all samples contain 1024 samples
-
-        });
-      }
-
-      return samples;
-    }; // generate the track's sample table from an array of frames
-
-
-    var concatenateFrameData = function concatenateFrameData(frames) {
-      var i,
-          currentFrame,
-          dataOffset = 0,
-          data = new Uint8Array(sumFrameByteLengths(frames));
-
-      for (i = 0; i < frames.length; i++) {
-        currentFrame = frames[i];
-        data.set(currentFrame.data, dataOffset);
-        dataOffset += currentFrame.data.byteLength;
-      }
-
-      return data;
-    };
-
-    var audioFrameUtils = {
-      prefixWithSilence: prefixWithSilence,
-      trimAdtsFramesByEarliestDts: trimAdtsFramesByEarliestDts,
-      generateSampleTable: generateSampleTable,
-      concatenateFrameData: concatenateFrameData
-    };
+    function merge(...args) {
+        const context = videojs.obj || videojs;
+        const fn = context.merge || context.mergeOptions;
+        return fn.apply(context, args);
+    }
     /**
-     * mux.js
-     *
-     * Copyright (c) Brightcove
-     * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE
+     * Delegates to videojs.time.createTimeRanges (Video.js 8) or
+     * videojs.createTimeRanges (Video.js 7).
      */
 
-    var ONE_SECOND_IN_TS$3 = clock.ONE_SECOND_IN_TS;
-    /**
-     * Store information about the start and end of the track and the
-     * duration for each frame/sample we process in order to calculate
-     * the baseMediaDecodeTime
-     */
-
-    var collectDtsInfo = function collectDtsInfo(track, data) {
-      if (typeof data.pts === 'number') {
-        if (track.timelineStartInfo.pts === undefined) {
-          track.timelineStartInfo.pts = data.pts;
-        }
-
-        if (track.minSegmentPts === undefined) {
-          track.minSegmentPts = data.pts;
-        } else {
-          track.minSegmentPts = Math.min(track.minSegmentPts, data.pts);
-        }
-
-        if (track.maxSegmentPts === undefined) {
-          track.maxSegmentPts = data.pts;
-        } else {
-          track.maxSegmentPts = Math.max(track.maxSegmentPts, data.pts);
-        }
-      }
-
-      if (typeof data.dts === 'number') {
-        if (track.timelineStartInfo.dts === undefined) {
-          track.timelineStartInfo.dts = data.dts;
-        }
-
-        if (track.minSegmentDts === undefined) {
-          track.minSegmentDts = data.dts;
-        } else {
-          track.minSegmentDts = Math.min(track.minSegmentDts, data.dts);
-        }
-
-        if (track.maxSegmentDts === undefined) {
-          track.maxSegmentDts = data.dts;
-        } else {
-          track.maxSegmentDts = Math.max(track.maxSegmentDts, data.dts);
-        }
-      }
-    };
-    /**
-     * Clear values used to calculate the baseMediaDecodeTime between
-     * tracks
-     */
-
-
-    var clearDtsInfo = function clearDtsInfo(track) {
-      delete track.minSegmentDts;
-      delete track.maxSegmentDts;
-      delete track.minSegmentPts;
-      delete track.maxSegmentPts;
-    };
-    /**
-     * Calculate the track's baseMediaDecodeTime based on the earliest
-     * DTS the transmuxer has ever seen and the minimum DTS for the
-     * current track
-     * @param track {object} track metadata configuration
-     * @param keepOriginalTimestamps {boolean} If true, keep the timestamps
-     *        in the source; false to adjust the first segment to start at 0.
-     */
-
-
-    var calculateTrackBaseMediaDecodeTime = function calculateTrackBaseMediaDecodeTime(track, keepOriginalTimestamps) {
-      var baseMediaDecodeTime,
-          scale,
-          minSegmentDts = track.minSegmentDts; // Optionally adjust the time so the first segment starts at zero.
-
-      if (!keepOriginalTimestamps) {
-        minSegmentDts -= track.timelineStartInfo.dts;
-      } // track.timelineStartInfo.baseMediaDecodeTime is the location, in time, where
-      // we want the start of the first segment to be placed
-
-
-      baseMediaDecodeTime = track.timelineStartInfo.baseMediaDecodeTime; // Add to that the distance this segment is from the very first
-
-      baseMediaDecodeTime += minSegmentDts; // baseMediaDecodeTime must not become negative
-
-      baseMediaDecodeTime = Math.max(0, baseMediaDecodeTime);
-
-      if (track.type === 'audio') {
-        // Audio has a different clock equal to the sampling_rate so we need to
-        // scale the PTS values into the clock rate of the track
-        scale = track.samplerate / ONE_SECOND_IN_TS$3;
-        baseMediaDecodeTime *= scale;
-        baseMediaDecodeTime = Math.floor(baseMediaDecodeTime);
-      }
-
-      return baseMediaDecodeTime;
-    };
-
-    var trackDecodeInfo = {
-      clearDtsInfo: clearDtsInfo,
-      calculateTrackBaseMediaDecodeTime: calculateTrackBaseMediaDecodeTime,
-      collectDtsInfo: collectDtsInfo
-    };
-    /**
-     * mux.js
-     *
-     * Copyright (c) Brightcove
-     * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE
-     *
-     * Reads in-band caption information from a video elementary
-     * stream. Captions must follow the CEA-708 standard for injection
-     * into an MPEG-2 transport streams.
-     * @see https://en.wikipedia.org/wiki/CEA-708
-     * @see https://www.gpo.gov/fdsys/pkg/CFR-2007-title47-vol1/pdf/CFR-2007-title47-vol1-sec15-119.pdf
-     */
-    // payload type field to indicate how they are to be
-    // interpreted. CEAS-708 caption content is always transmitted with
-    // payload type 0x04.
-
-    var USER_DATA_REGISTERED_ITU_T_T35 = 4,
-        RBSP_TRAILING_BITS = 128;
-    /**
-      * Parse a supplemental enhancement information (SEI) NAL unit.
-      * Stops parsing once a message of type ITU T T35 has been found.
-      *
-      * @param bytes {Uint8Array} the bytes of a SEI NAL unit
-      * @return {object} the parsed SEI payload
-      * @see Rec. ITU-T H.264, 7.3.2.3.1
-      */
-
-    var parseSei = function parseSei(bytes) {
-      var i = 0,
-          result = {
-        payloadType: -1,
-        payloadSize: 0
-      },
-          payloadType = 0,
-          payloadSize = 0; // go through the sei_rbsp parsing each each individual sei_message
-
-      while (i < bytes.byteLength) {
-        // stop once we have hit the end of the sei_rbsp
-        if (bytes[i] === RBSP_TRAILING_BITS) {
-          break;
-        } // Parse payload type
-
-
-        while (bytes[i] === 0xFF) {
-          payloadType += 255;
-          i++;
-        }
-
-        payloadType += bytes[i++]; // Parse payload size
-
-        while (bytes[i] === 0xFF) {
-          payloadSize += 255;
-          i++;
-        }
-
-        payloadSize += bytes[i++]; // this sei_message is a 608/708 caption so save it and break
-        // there can only ever be one caption message in a frame's sei
-
-        if (!result.payload && payloadType === USER_DATA_REGISTERED_ITU_T_T35) {
-          var userIdentifier = String.fromCharCode(bytes[i + 3], bytes[i + 4], bytes[i + 5], bytes[i + 6]);
-
-          if (userIdentifier === 'GA94') {
-            result.payloadType = payloadType;
-            result.payloadSize = payloadSize;
-            result.payload = bytes.subarray(i, i + payloadSize);
-            break;
-          } else {
-            result.payload = void 0;
-          }
-        } // skip the payload and parse the next message
-
-
-        i += payloadSize;
-        payloadType = 0;
-        payloadSize = 0;
-      }
-
-      return result;
-    }; // see ANSI/SCTE 128-1 (2013), section 8.1
-
-
-    var parseUserData = function parseUserData(sei) {
-      // itu_t_t35_contry_code must be 181 (United States) for
-      // captions
-      if (sei.payload[0] !== 181) {
-        return null;
-      } // itu_t_t35_provider_code should be 49 (ATSC) for captions
-
-
-      if ((sei.payload[1] << 8 | sei.payload[2]) !== 49) {
-        return null;
-      } // the user_identifier should be "GA94" to indicate ATSC1 data
-
-
-      if (String.fromCharCode(sei.payload[3], sei.payload[4], sei.payload[5], sei.payload[6]) !== 'GA94') {
-        return null;
-      } // finally, user_data_type_code should be 0x03 for caption data
-
-
-      if (sei.payload[7] !== 0x03) {
-        return null;
-      } // return the user_data_type_structure and strip the trailing
-      // marker bits
-
-
-      return sei.payload.subarray(8, sei.payload.length - 1);
-    }; // see CEA-708-D, section 4.4
-
-
-    var parseCaptionPackets = function parseCaptionPackets(pts, userData) {
-      var results = [],
-          i,
-          count,
-          offset,
-          data; // if this is just filler, return immediately
-
-      if (!(userData[0] & 0x40)) {
-        return results;
-      } // parse out the cc_data_1 and cc_data_2 fields
-
-
-      count = userData[0] & 0x1f;
-
-      for (i = 0; i < count; i++) {
-        offset = i * 3;
-        data = {
-          type: userData[offset + 2] & 0x03,
-          pts: pts
-        }; // capture cc data when cc_valid is 1
-
-        if (userData[offset + 2] & 0x04) {
-          data.ccData = userData[offset + 3] << 8 | userData[offset + 4];
-          results.push(data);
-        }
-      }
-
-      return results;
-    };
-
-    var discardEmulationPreventionBytes$1 = function discardEmulationPreventionBytes(data) {
-      var length = data.byteLength,
-          emulationPreventionBytesPositions = [],
-          i = 1,
-          newLength,
-          newData; // Find all `Emulation Prevention Bytes`
-
-      while (i < length - 2) {
-        if (data[i] === 0 && data[i + 1] === 0 && data[i + 2] === 0x03) {
-          emulationPreventionBytesPositions.push(i + 2);
-          i += 2;
-        } else {
-          i++;
-        }
-      } // If no Emulation Prevention Bytes were found just return the original
-      // array
-
-
-      if (emulationPreventionBytesPositions.length === 0) {
-        return data;
-      } // Create a new array to hold the NAL unit data
-
-
-      newLength = length - emulationPreventionBytesPositions.length;
-      newData = new Uint8Array(newLength);
-      var sourceIndex = 0;
-
-      for (i = 0; i < newLength; sourceIndex++, i++) {
-        if (sourceIndex === emulationPreventionBytesPositions[0]) {
-          // Skip this byte
-          sourceIndex++; // Remove this position index
-
-          emulationPreventionBytesPositions.shift();
-        }
-
-        newData[i] = data[sourceIndex];
-      }
-
-      return newData;
-    }; // exports
-
-
-    var captionPacketParser = {
-      parseSei: parseSei,
-      parseUserData: parseUserData,
-      parseCaptionPackets: parseCaptionPackets,
-      discardEmulationPreventionBytes: discardEmulationPreventionBytes$1,
-      USER_DATA_REGISTERED_ITU_T_T35: USER_DATA_REGISTERED_ITU_T_T35
-    }; // Link To Transport
-    // -----------------
-
-    var CaptionStream$1 = function CaptionStream(options) {
-      options = options || {};
-      CaptionStream.prototype.init.call(this); // parse708captions flag, default to true
-
-      this.parse708captions_ = typeof options.parse708captions === 'boolean' ? options.parse708captions : true;
-      this.captionPackets_ = [];
-      this.ccStreams_ = [new Cea608Stream(0, 0), // eslint-disable-line no-use-before-define
-      new Cea608Stream(0, 1), // eslint-disable-line no-use-before-define
-      new Cea608Stream(1, 0), // eslint-disable-line no-use-before-define
-      new Cea608Stream(1, 1) // eslint-disable-line no-use-before-define
-      ];
-
-      if (this.parse708captions_) {
-        this.cc708Stream_ = new Cea708Stream({
-          captionServices: options.captionServices
-        }); // eslint-disable-line no-use-before-define
-      }
-
-      this.reset(); // forward data and done events from CCs to this CaptionStream
-
-      this.ccStreams_.forEach(function (cc) {
-        cc.on('data', this.trigger.bind(this, 'data'));
-        cc.on('partialdone', this.trigger.bind(this, 'partialdone'));
-        cc.on('done', this.trigger.bind(this, 'done'));
-      }, this);
-
-      if (this.parse708captions_) {
-        this.cc708Stream_.on('data', this.trigger.bind(this, 'data'));
-        this.cc708Stream_.on('partialdone', this.trigger.bind(this, 'partialdone'));
-        this.cc708Stream_.on('done', this.trigger.bind(this, 'done'));
-      }
-    };
-
-    CaptionStream$1.prototype = new stream();
-
-    CaptionStream$1.prototype.push = function (event) {
-      var sei, userData, newCaptionPackets; // only examine SEI NALs
-
-      if (event.nalUnitType !== 'sei_rbsp') {
-        return;
-      } // parse the sei
-
-
-      sei = captionPacketParser.parseSei(event.escapedRBSP); // no payload data, skip
-
-      if (!sei.payload) {
-        return;
-      } // ignore everything but user_data_registered_itu_t_t35
-
-
-      if (sei.payloadType !== captionPacketParser.USER_DATA_REGISTERED_ITU_T_T35) {
-        return;
-      } // parse out the user data payload
-
-
-      userData = captionPacketParser.parseUserData(sei); // ignore unrecognized userData
-
-      if (!userData) {
-        return;
-      } // Sometimes, the same segment # will be downloaded twice. To stop the
-      // caption data from being processed twice, we track the latest dts we've
-      // received and ignore everything with a dts before that. However, since
-      // data for a specific dts can be split across packets on either side of
-      // a segment boundary, we need to make sure we *don't* ignore the packets
-      // from the *next* segment that have dts === this.latestDts_. By constantly
-      // tracking the number of packets received with dts === this.latestDts_, we
-      // know how many should be ignored once we start receiving duplicates.
-
-
-      if (event.dts < this.latestDts_) {
-        // We've started getting older data, so set the flag.
-        this.ignoreNextEqualDts_ = true;
-        return;
-      } else if (event.dts === this.latestDts_ && this.ignoreNextEqualDts_) {
-        this.numSameDts_--;
-
-        if (!this.numSameDts_) {
-          // We've received the last duplicate packet, time to start processing again
-          this.ignoreNextEqualDts_ = false;
-        }
-
-        return;
-      } // parse out CC data packets and save them for later
-
-
-      newCaptionPackets = captionPacketParser.parseCaptionPackets(event.pts, userData);
-      this.captionPackets_ = this.captionPackets_.concat(newCaptionPackets);
-
-      if (this.latestDts_ !== event.dts) {
-        this.numSameDts_ = 0;
-      }
-
-      this.numSameDts_++;
-      this.latestDts_ = event.dts;
-    };
-
-    CaptionStream$1.prototype.flushCCStreams = function (flushType) {
-      this.ccStreams_.forEach(function (cc) {
-        return flushType === 'flush' ? cc.flush() : cc.partialFlush();
-      }, this);
-    };
-
-    CaptionStream$1.prototype.flushStream = function (flushType) {
-      // make sure we actually parsed captions before proceeding
-      if (!this.captionPackets_.length) {
-        this.flushCCStreams(flushType);
-        return;
-      } // In Chrome, the Array#sort function is not stable so add a
-      // presortIndex that we can use to ensure we get a stable-sort
-
-
-      this.captionPackets_.forEach(function (elem, idx) {
-        elem.presortIndex = idx;
-      }); // sort caption byte-pairs based on their PTS values
-
-      this.captionPackets_.sort(function (a, b) {
-        if (a.pts === b.pts) {
-          return a.presortIndex - b.presortIndex;
-        }
-
-        return a.pts - b.pts;
-      });
-      this.captionPackets_.forEach(function (packet) {
-        if (packet.type < 2) {
-          // Dispatch packet to the right Cea608Stream
-          this.dispatchCea608Packet(packet);
-        } else {
-          // Dispatch packet to the Cea708Stream
-          this.dispatchCea708Packet(packet);
-        }
-      }, this);
-      this.captionPackets_.length = 0;
-      this.flushCCStreams(flushType);
-    };
-
-    CaptionStream$1.prototype.flush = function () {
-      return this.flushStream('flush');
-    }; // Only called if handling partial data
-
-
-    CaptionStream$1.prototype.partialFlush = function () {
-      return this.flushStream('partialFlush');
-    };
-
-    CaptionStream$1.prototype.reset = function () {
-      this.latestDts_ = null;
-      this.ignoreNextEqualDts_ = false;
-      this.numSameDts_ = 0;
-      this.activeCea608Channel_ = [null, null];
-      this.ccStreams_.forEach(function (ccStream) {
-        ccStream.reset();
-      });
-    }; // From the CEA-608 spec:
-
-    /*
-     * When XDS sub-packets are interleaved with other services, the end of each sub-packet shall be followed
-     * by a control pair to change to a different service. When any of the control codes from 0x10 to 0x1F is
-     * used to begin a control code pair, it indicates the return to captioning or Text data. The control code pair
-     * and subsequent data should then be processed according to the FCC rules. It may be necessary for the
-     * line 21 data encoder to automatically insert a control code pair (i.e. RCL, RU2, RU3, RU4, RDC, or RTD)
-     * to switch to captioning or Text.
-    */
-    // With that in mind, we ignore any data between an XDS control code and a
-    // subsequent closed-captioning control code.
-
-
-    CaptionStream$1.prototype.dispatchCea608Packet = function (packet) {
-      // NOTE: packet.type is the CEA608 field
-      if (this.setsTextOrXDSActive(packet)) {
-        this.activeCea608Channel_[packet.type] = null;
-      } else if (this.setsChannel1Active(packet)) {
-        this.activeCea608Channel_[packet.type] = 0;
-      } else if (this.setsChannel2Active(packet)) {
-        this.activeCea608Channel_[packet.type] = 1;
-      }
-
-      if (this.activeCea608Channel_[packet.type] === null) {
-        // If we haven't received anything to set the active channel, or the
-        // packets are Text/XDS data, discard the data; we don't want jumbled
-        // captions
-        return;
-      }
-
-      this.ccStreams_[(packet.type << 1) + this.activeCea608Channel_[packet.type]].push(packet);
-    };
-
-    CaptionStream$1.prototype.setsChannel1Active = function (packet) {
-      return (packet.ccData & 0x7800) === 0x1000;
-    };
-
-    CaptionStream$1.prototype.setsChannel2Active = function (packet) {
-      return (packet.ccData & 0x7800) === 0x1800;
-    };
-
-    CaptionStream$1.prototype.setsTextOrXDSActive = function (packet) {
-      return (packet.ccData & 0x7100) === 0x0100 || (packet.ccData & 0x78fe) === 0x102a || (packet.ccData & 0x78fe) === 0x182a;
-    };
-
-    CaptionStream$1.prototype.dispatchCea708Packet = function (packet) {
-      if (this.parse708captions_) {
-        this.cc708Stream_.push(packet);
-      }
-    }; // ----------------------
-    // Session to Application
-    // ----------------------
-    // This hash maps special and extended character codes to their
-    // proper Unicode equivalent. The first one-byte key is just a
-    // non-standard character code. The two-byte keys that follow are
-    // the extended CEA708 character codes, along with the preceding
-    // 0x10 extended character byte to distinguish these codes from
-    // non-extended character codes. Every CEA708 character code that
-    // is not in this object maps directly to a standard unicode
-    // character code.
-    // The transparent space and non-breaking transparent space are
-    // technically not fully supported since there is no code to
-    // make them transparent, so they have normal non-transparent
-    // stand-ins.
-    // The special closed caption (CC) character isn't a standard
-    // unicode character, so a fairly similar unicode character was
-    // chosen in it's place.
-
-
-    var CHARACTER_TRANSLATION_708 = {
-      0x7f: 0x266a,
-      // ♪
-      0x1020: 0x20,
-      // Transparent Space
-      0x1021: 0xa0,
-      // Nob-breaking Transparent Space
-      0x1025: 0x2026,
-      // …
-      0x102a: 0x0160,
-      // Š
-      0x102c: 0x0152,
-      // Œ
-      0x1030: 0x2588,
-      // █
-      0x1031: 0x2018,
-      // ‘
-      0x1032: 0x2019,
-      // ’
-      0x1033: 0x201c,
-      // “
-      0x1034: 0x201d,
-      // ”
-      0x1035: 0x2022,
-      // •
-      0x1039: 0x2122,
-      // ™
-      0x103a: 0x0161,
-      // š
-      0x103c: 0x0153,
-      // œ
-      0x103d: 0x2120,
-      // ℠
-      0x103f: 0x0178,
-      // Ÿ
-      0x1076: 0x215b,
-      // ⅛
-      0x1077: 0x215c,
-      // ⅜
-      0x1078: 0x215d,
-      // ⅝
-      0x1079: 0x215e,
-      // ⅞
-      0x107a: 0x23d0,
-      // ⏐
-      0x107b: 0x23a4,
-      // ⎤
-      0x107c: 0x23a3,
-      // ⎣
-      0x107d: 0x23af,
-      // ⎯
-      0x107e: 0x23a6,
-      // ⎦
-      0x107f: 0x23a1,
-      // ⎡
-      0x10a0: 0x3138 // ㄸ (CC char)
-
-    };
-
-    var get708CharFromCode = function get708CharFromCode(code) {
-      var newCode = CHARACTER_TRANSLATION_708[code] || code;
-
-      if (code & 0x1000 && code === newCode) {
-        // Invalid extended code
-        return '';
-      }
-
-      return String.fromCharCode(newCode);
-    };
-
-    var within708TextBlock = function within708TextBlock(b) {
-      return 0x20 <= b && b <= 0x7f || 0xa0 <= b && b <= 0xff;
-    };
-
-    var Cea708Window = function Cea708Window(windowNum) {
-      this.windowNum = windowNum;
-      this.reset();
-    };
-
-    Cea708Window.prototype.reset = function () {
-      this.clearText();
-      this.pendingNewLine = false;
-      this.winAttr = {};
-      this.penAttr = {};
-      this.penLoc = {};
-      this.penColor = {}; // These default values are arbitrary,
-      // defineWindow will usually override them
-
-      this.visible = 0;
-      this.rowLock = 0;
-      this.columnLock = 0;
-      this.priority = 0;
-      this.relativePositioning = 0;
-      this.anchorVertical = 0;
-      this.anchorHorizontal = 0;
-      this.anchorPoint = 0;
-      this.rowCount = 1;
-      this.virtualRowCount = this.rowCount + 1;
-      this.columnCount = 41;
-      this.windowStyle = 0;
-      this.penStyle = 0;
-    };
-
-    Cea708Window.prototype.getText = function () {
-      return this.rows.join('\n');
-    };
-
-    Cea708Window.prototype.clearText = function () {
-      this.rows = [''];
-      this.rowIdx = 0;
-    };
-
-    Cea708Window.prototype.newLine = function (pts) {
-      if (this.rows.length >= this.virtualRowCount && typeof this.beforeRowOverflow === 'function') {
-        this.beforeRowOverflow(pts);
-      }
-
-      if (this.rows.length > 0) {
-        this.rows.push('');
-        this.rowIdx++;
-      } // Show all virtual rows since there's no visible scrolling
-
-
-      while (this.rows.length > this.virtualRowCount) {
-        this.rows.shift();
-        this.rowIdx--;
-      }
-    };
-
-    Cea708Window.prototype.isEmpty = function () {
-      if (this.rows.length === 0) {
-        return true;
-      } else if (this.rows.length === 1) {
-        return this.rows[0] === '';
-      }
-
-      return false;
-    };
-
-    Cea708Window.prototype.addText = function (text) {
-      this.rows[this.rowIdx] += text;
-    };
-
-    Cea708Window.prototype.backspace = function () {
-      if (!this.isEmpty()) {
-        var row = this.rows[this.rowIdx];
-        this.rows[this.rowIdx] = row.substr(0, row.length - 1);
-      }
-    };
-
-    var Cea708Service = function Cea708Service(serviceNum, encoding, stream) {
-      this.serviceNum = serviceNum;
-      this.text = '';
-      this.currentWindow = new Cea708Window(-1);
-      this.windows = [];
-      this.stream = stream; // Try to setup a TextDecoder if an `encoding` value was provided
-
-      if (typeof encoding === 'string') {
-        this.createTextDecoder(encoding);
-      }
-    };
-    /**
-     * Initialize service windows
-     * Must be run before service use
-     *
-     * @param  {Integer}  pts               PTS value
-     * @param  {Function} beforeRowOverflow Function to execute before row overflow of a window
-     */
-
-
-    Cea708Service.prototype.init = function (pts, beforeRowOverflow) {
-      this.startPts = pts;
-
-      for (var win = 0; win < 8; win++) {
-        this.windows[win] = new Cea708Window(win);
-
-        if (typeof beforeRowOverflow === 'function') {
-          this.windows[win].beforeRowOverflow = beforeRowOverflow;
-        }
-      }
-    };
-    /**
-     * Set current window of service to be affected by commands
-     *
-     * @param  {Integer} windowNum Window number
-     */
-
-
-    Cea708Service.prototype.setCurrentWindow = function (windowNum) {
-      this.currentWindow = this.windows[windowNum];
-    };
-    /**
-     * Try to create a TextDecoder if it is natively supported
-     */
-
-
-    Cea708Service.prototype.createTextDecoder = function (encoding) {
-      if (typeof TextDecoder === 'undefined') {
-        this.stream.trigger('log', {
-          level: 'warn',
-          message: 'The `encoding` option is unsupported without TextDecoder support'
-        });
-      } else {
-        try {
-          this.textDecoder_ = new TextDecoder(encoding);
-        } catch (error) {
-          this.stream.trigger('log', {
-            level: 'warn',
-            message: 'TextDecoder could not be created with ' + encoding + ' encoding. ' + error
-          });
-        }
-      }
-    };
-
-    var Cea708Stream = function Cea708Stream(options) {
-      options = options || {};
-      Cea708Stream.prototype.init.call(this);
-      var self = this;
-      var captionServices = options.captionServices || {};
-      var captionServiceEncodings = {};
-      var serviceProps; // Get service encodings from captionServices option block
-
-      Object.keys(captionServices).forEach(function (serviceName) {
-        serviceProps = captionServices[serviceName];
-
-        if (/^SERVICE/.test(serviceName)) {
-          captionServiceEncodings[serviceName] = serviceProps.encoding;
-        }
-      });
-      this.serviceEncodings = captionServiceEncodings;
-      this.current708Packet = null;
-      this.services = {};
-
-      this.push = function (packet) {
-        if (packet.type === 3) {
-          // 708 packet start
-          self.new708Packet();
-          self.add708Bytes(packet);
-        } else {
-          if (self.current708Packet === null) {
-            // This should only happen at the start of a file if there's no packet start.
-            self.new708Packet();
-          }
-
-          self.add708Bytes(packet);
-        }
-      };
-    };
-
-    Cea708Stream.prototype = new stream();
-    /**
-     * Push current 708 packet, create new 708 packet.
-     */
-
-    Cea708Stream.prototype.new708Packet = function () {
-      if (this.current708Packet !== null) {
-        this.push708Packet();
-      }
-
-      this.current708Packet = {
-        data: [],
-        ptsVals: []
-      };
-    };
-    /**
-     * Add pts and both bytes from packet into current 708 packet.
-     */
-
-
-    Cea708Stream.prototype.add708Bytes = function (packet) {
-      var data = packet.ccData;
-      var byte0 = data >>> 8;
-      var byte1 = data & 0xff; // I would just keep a list of packets instead of bytes, but it isn't clear in the spec
-      // that service blocks will always line up with byte pairs.
-
-      this.current708Packet.ptsVals.push(packet.pts);
-      this.current708Packet.data.push(byte0);
-      this.current708Packet.data.push(byte1);
-    };
-    /**
-     * Parse completed 708 packet into service blocks and push each service block.
-     */
-
-
-    Cea708Stream.prototype.push708Packet = function () {
-      var packet708 = this.current708Packet;
-      var packetData = packet708.data;
-      var serviceNum = null;
-      var blockSize = null;
-      var i = 0;
-      var b = packetData[i++];
-      packet708.seq = b >> 6;
-      packet708.sizeCode = b & 0x3f; // 0b00111111;
-
-      for (; i < packetData.length; i++) {
-        b = packetData[i++];
-        serviceNum = b >> 5;
-        blockSize = b & 0x1f; // 0b00011111
-
-        if (serviceNum === 7 && blockSize > 0) {
-          // Extended service num
-          b = packetData[i++];
-          serviceNum = b;
-        }
-
-        this.pushServiceBlock(serviceNum, i, blockSize);
-
-        if (blockSize > 0) {
-          i += blockSize - 1;
-        }
-      }
-    };
-    /**
-     * Parse service block, execute commands, read text.
-     *
-     * Note: While many of these commands serve important purposes,
-     * many others just parse out the parameters or attributes, but
-     * nothing is done with them because this is not a full and complete
-     * implementation of the entire 708 spec.
-     *
-     * @param  {Integer} serviceNum Service number
-     * @param  {Integer} start      Start index of the 708 packet data
-     * @param  {Integer} size       Block size
-     */
-
-
-    Cea708Stream.prototype.pushServiceBlock = function (serviceNum, start, size) {
-      var b;
-      var i = start;
-      var packetData = this.current708Packet.data;
-      var service = this.services[serviceNum];
-
-      if (!service) {
-        service = this.initService(serviceNum, i);
-      }
-
-      for (; i < start + size && i < packetData.length; i++) {
-        b = packetData[i];
-
-        if (within708TextBlock(b)) {
-          i = this.handleText(i, service);
-        } else if (b === 0x18) {
-          i = this.multiByteCharacter(i, service);
-        } else if (b === 0x10) {
-          i = this.extendedCommands(i, service);
-        } else if (0x80 <= b && b <= 0x87) {
-          i = this.setCurrentWindow(i, service);
-        } else if (0x98 <= b && b <= 0x9f) {
-          i = this.defineWindow(i, service);
-        } else if (b === 0x88) {
-          i = this.clearWindows(i, service);
-        } else if (b === 0x8c) {
-          i = this.deleteWindows(i, service);
-        } else if (b === 0x89) {
-          i = this.displayWindows(i, service);
-        } else if (b === 0x8a) {
-          i = this.hideWindows(i, service);
-        } else if (b === 0x8b) {
-          i = this.toggleWindows(i, service);
-        } else if (b === 0x97) {
-          i = this.setWindowAttributes(i, service);
-        } else if (b === 0x90) {
-          i = this.setPenAttributes(i, service);
-        } else if (b === 0x91) {
-          i = this.setPenColor(i, service);
-        } else if (b === 0x92) {
-          i = this.setPenLocation(i, service);
-        } else if (b === 0x8f) {
-          service = this.reset(i, service);
-        } else if (b === 0x08) {
-          // BS: Backspace
-          service.currentWindow.backspace();
-        } else if (b === 0x0c) {
-          // FF: Form feed
-          service.currentWindow.clearText();
-        } else if (b === 0x0d) {
-          // CR: Carriage return
-          service.currentWindow.pendingNewLine = true;
-        } else if (b === 0x0e) {
-          // HCR: Horizontal carriage return
-          service.currentWindow.clearText();
-        } else if (b === 0x8d) {
-          // DLY: Delay, nothing to do
-          i++;
-        } else ;
-      }
-    };
-    /**
-     * Execute an extended command
-     *
-     * @param  {Integer} i        Current index in the 708 packet
-     * @param  {Service} service  The service object to be affected
-     * @return {Integer}          New index after parsing
-     */
-
-
-    Cea708Stream.prototype.extendedCommands = function (i, service) {
-      var packetData = this.current708Packet.data;
-      var b = packetData[++i];
-
-      if (within708TextBlock(b)) {
-        i = this.handleText(i, service, {
-          isExtended: true
-        });
-      }
-
-      return i;
-    };
-    /**
-     * Get PTS value of a given byte index
-     *
-     * @param  {Integer} byteIndex  Index of the byte
-     * @return {Integer}            PTS
-     */
-
-
-    Cea708Stream.prototype.getPts = function (byteIndex) {
-      // There's 1 pts value per 2 bytes
-      return this.current708Packet.ptsVals[Math.floor(byteIndex / 2)];
-    };
-    /**
-     * Initializes a service
-     *
-     * @param  {Integer} serviceNum Service number
-     * @return {Service}            Initialized service object
-     */
-
-
-    Cea708Stream.prototype.initService = function (serviceNum, i) {
-      var serviceName = 'SERVICE' + serviceNum;
-      var self = this;
-      var serviceName;
-      var encoding;
-
-      if (serviceName in this.serviceEncodings) {
-        encoding = this.serviceEncodings[serviceName];
-      }
-
-      this.services[serviceNum] = new Cea708Service(serviceNum, encoding, self);
-      this.services[serviceNum].init(this.getPts(i), function (pts) {
-        self.flushDisplayed(pts, self.services[serviceNum]);
-      });
-      return this.services[serviceNum];
-    };
-    /**
-     * Execute text writing to current window
-     *
-     * @param  {Integer} i        Current index in the 708 packet
-     * @param  {Service} service  The service object to be affected
-     * @return {Integer}          New index after parsing
-     */
-
-
-    Cea708Stream.prototype.handleText = function (i, service, options) {
-      var isExtended = options && options.isExtended;
-      var isMultiByte = options && options.isMultiByte;
-      var packetData = this.current708Packet.data;
-      var extended = isExtended ? 0x1000 : 0x0000;
-      var currentByte = packetData[i];
-      var nextByte = packetData[i + 1];
-      var win = service.currentWindow;
-
-      var _char;
-
-      var charCodeArray; // Use the TextDecoder if one was created for this service
-
-      if (service.textDecoder_ && !isExtended) {
-        if (isMultiByte) {
-          charCodeArray = [currentByte, nextByte];
-          i++;
-        } else {
-          charCodeArray = [currentByte];
-        }
-
-        _char = service.textDecoder_.decode(new Uint8Array(charCodeArray));
-      } else {
-        _char = get708CharFromCode(extended | currentByte);
-      }
-
-      if (win.pendingNewLine && !win.isEmpty()) {
-        win.newLine(this.getPts(i));
-      }
-
-      win.pendingNewLine = false;
-      win.addText(_char);
-      return i;
-    };
-    /**
-     * Handle decoding of multibyte character
-     *
-     * @param  {Integer} i        Current index in the 708 packet
-     * @param  {Service} service  The service object to be affected
-     * @return {Integer}          New index after parsing
-     */
-
-
-    Cea708Stream.prototype.multiByteCharacter = function (i, service) {
-      var packetData = this.current708Packet.data;
-      var firstByte = packetData[i + 1];
-      var secondByte = packetData[i + 2];
-
-      if (within708TextBlock(firstByte) && within708TextBlock(secondByte)) {
-        i = this.handleText(++i, service, {
-          isMultiByte: true
-        });
-      }
-
-      return i;
-    };
-    /**
-     * Parse and execute the CW# command.
-     *
-     * Set the current window.
-     *
-     * @param  {Integer} i        Current index in the 708 packet
-     * @param  {Service} service  The service object to be affected
-     * @return {Integer}          New index after parsing
-     */
-
-
-    Cea708Stream.prototype.setCurrentWindow = function (i, service) {
-      var packetData = this.current708Packet.data;
-      var b = packetData[i];
-      var windowNum = b & 0x07;
-      service.setCurrentWindow(windowNum);
-      return i;
-    };
-    /**
-     * Parse and execute the DF# command.
-     *
-     * Define a window and set it as the current window.
-     *
-     * @param  {Integer} i        Current index in the 708 packet
-     * @param  {Service} service  The service object to be affected
-     * @return {Integer}          New index after parsing
-     */
-
-
-    Cea708Stream.prototype.defineWindow = function (i, service) {
-      var packetData = this.current708Packet.data;
-      var b = packetData[i];
-      var windowNum = b & 0x07;
-      service.setCurrentWindow(windowNum);
-      var win = service.currentWindow;
-      b = packetData[++i];
-      win.visible = (b & 0x20) >> 5; // v
-
-      win.rowLock = (b & 0x10) >> 4; // rl
-
-      win.columnLock = (b & 0x08) >> 3; // cl
-
-      win.priority = b & 0x07; // p
-
-      b = packetData[++i];
-      win.relativePositioning = (b & 0x80) >> 7; // rp
-
-      win.anchorVertical = b & 0x7f; // av
-
-      b = packetData[++i];
-      win.anchorHorizontal = b; // ah
-
-      b = packetData[++i];
-      win.anchorPoint = (b & 0xf0) >> 4; // ap
-
-      win.rowCount = b & 0x0f; // rc
-
-      b = packetData[++i];
-      win.columnCount = b & 0x3f; // cc
-
-      b = packetData[++i];
-      win.windowStyle = (b & 0x38) >> 3; // ws
-
-      win.penStyle = b & 0x07; // ps
-      // The spec says there are (rowCount+1) "virtual rows"
-
-      win.virtualRowCount = win.rowCount + 1;
-      return i;
-    };
-    /**
-     * Parse and execute the SWA command.
-     *
-     * Set attributes of the current window.
-     *
-     * @param  {Integer} i        Current index in the 708 packet
-     * @param  {Service} service  The service object to be affected
-     * @return {Integer}          New index after parsing
-     */
-
-
-    Cea708Stream.prototype.setWindowAttributes = function (i, service) {
-      var packetData = this.current708Packet.data;
-      var b = packetData[i];
-      var winAttr = service.currentWindow.winAttr;
-      b = packetData[++i];
-      winAttr.fillOpacity = (b & 0xc0) >> 6; // fo
-
-      winAttr.fillRed = (b & 0x30) >> 4; // fr
-
-      winAttr.fillGreen = (b & 0x0c) >> 2; // fg
-
-      winAttr.fillBlue = b & 0x03; // fb
-
-      b = packetData[++i];
-      winAttr.borderType = (b & 0xc0) >> 6; // bt
-
-      winAttr.borderRed = (b & 0x30) >> 4; // br
-
-      winAttr.borderGreen = (b & 0x0c) >> 2; // bg
-
-      winAttr.borderBlue = b & 0x03; // bb
-
-      b = packetData[++i];
-      winAttr.borderType += (b & 0x80) >> 5; // bt
-
-      winAttr.wordWrap = (b & 0x40) >> 6; // ww
-
-      winAttr.printDirection = (b & 0x30) >> 4; // pd
-
-      winAttr.scrollDirection = (b & 0x0c) >> 2; // sd
-
-      winAttr.justify = b & 0x03; // j
-
-      b = packetData[++i];
-      winAttr.effectSpeed = (b & 0xf0) >> 4; // es
-
-      winAttr.effectDirection = (b & 0x0c) >> 2; // ed
-
-      winAttr.displayEffect = b & 0x03; // de
-
-      return i;
-    };
-    /**
-     * Gather text from all displayed windows and push a caption to output.
-     *
-     * @param  {Integer} i        Current index in the 708 packet
-     * @param  {Service} service  The service object to be affected
-     */
-
-
-    Cea708Stream.prototype.flushDisplayed = function (pts, service) {
-      var displayedText = []; // TODO: Positioning not supported, displaying multiple windows will not necessarily
-      // display text in the correct order, but sample files so far have not shown any issue.
-
-      for (var winId = 0; winId < 8; winId++) {
-        if (service.windows[winId].visible && !service.windows[winId].isEmpty()) {
-          displayedText.push(service.windows[winId].getText());
-        }
-      }
-
-      service.endPts = pts;
-      service.text = displayedText.join('\n\n');
-      this.pushCaption(service);
-      service.startPts = pts;
-    };
-    /**
-     * Push a caption to output if the caption contains text.
-     *
-     * @param  {Service} service  The service object to be affected
-     */
-
-
-    Cea708Stream.prototype.pushCaption = function (service) {
-      if (service.text !== '') {
-        this.trigger('data', {
-          startPts: service.startPts,
-          endPts: service.endPts,
-          text: service.text,
-          stream: 'cc708_' + service.serviceNum
-        });
-        service.text = '';
-        service.startPts = service.endPts;
-      }
-    };
-    /**
-     * Parse and execute the DSW command.
-     *
-     * Set visible property of windows based on the parsed bitmask.
-     *
-     * @param  {Integer} i        Current index in the 708 packet
-     * @param  {Service} service  The service object to be affected
-     * @return {Integer}          New index after parsing
-     */
-
-
-    Cea708Stream.prototype.displayWindows = function (i, service) {
-      var packetData = this.current708Packet.data;
-      var b = packetData[++i];
-      var pts = this.getPts(i);
-      this.flushDisplayed(pts, service);
-
-      for (var winId = 0; winId < 8; winId++) {
-        if (b & 0x01 << winId) {
-          service.windows[winId].visible = 1;
-        }
-      }
-
-      return i;
-    };
-    /**
-     * Parse and execute the HDW command.
-     *
-     * Set visible property of windows based on the parsed bitmask.
-     *
-     * @param  {Integer} i        Current index in the 708 packet
-     * @param  {Service} service  The service object to be affected
-     * @return {Integer}          New index after parsing
-     */
-
-
-    Cea708Stream.prototype.hideWindows = function (i, service) {
-      var packetData = this.current708Packet.data;
-      var b = packetData[++i];
-      var pts = this.getPts(i);
-      this.flushDisplayed(pts, service);
-
-      for (var winId = 0; winId < 8; winId++) {
-        if (b & 0x01 << winId) {
-          service.windows[winId].visible = 0;
-        }
-      }
-
-      return i;
-    };
-    /**
-     * Parse and execute the TGW command.
-     *
-     * Set visible property of windows based on the parsed bitmask.
-     *
-     * @param  {Integer} i        Current index in the 708 packet
-     * @param  {Service} service  The service object to be affected
-     * @return {Integer}          New index after parsing
-     */
-
-
-    Cea708Stream.prototype.toggleWindows = function (i, service) {
-      var packetData = this.current708Packet.data;
-      var b = packetData[++i];
-      var pts = this.getPts(i);
-      this.flushDisplayed(pts, service);
-
-      for (var winId = 0; winId < 8; winId++) {
-        if (b & 0x01 << winId) {
-          service.windows[winId].visible ^= 1;
-        }
-      }
-
-      return i;
-    };
-    /**
-     * Parse and execute the CLW command.
-     *
-     * Clear text of windows based on the parsed bitmask.
-     *
-     * @param  {Integer} i        Current index in the 708 packet
-     * @param  {Service} service  The service object to be affected
-     * @return {Integer}          New index after parsing
-     */
-
-
-    Cea708Stream.prototype.clearWindows = function (i, service) {
-      var packetData = this.current708Packet.data;
-      var b = packetData[++i];
-      var pts = this.getPts(i);
-      this.flushDisplayed(pts, service);
-
-      for (var winId = 0; winId < 8; winId++) {
-        if (b & 0x01 << winId) {
-          service.windows[winId].clearText();
-        }
-      }
-
-      return i;
-    };
-    /**
-     * Parse and execute the DLW command.
-     *
-     * Re-initialize windows based on the parsed bitmask.
-     *
-     * @param  {Integer} i        Current index in the 708 packet
-     * @param  {Service} service  The service object to be affected
-     * @return {Integer}          New index after parsing
-     */
-
-
-    Cea708Stream.prototype.deleteWindows = function (i, service) {
-      var packetData = this.current708Packet.data;
-      var b = packetData[++i];
-      var pts = this.getPts(i);
-      this.flushDisplayed(pts, service);
-
-      for (var winId = 0; winId < 8; winId++) {
-        if (b & 0x01 << winId) {
-          service.windows[winId].reset();
-        }
-      }
-
-      return i;
-    };
-    /**
-     * Parse and execute the SPA command.
-     *
-     * Set pen attributes of the current window.
-     *
-     * @param  {Integer} i        Current index in the 708 packet
-     * @param  {Service} service  The service object to be affected
-     * @return {Integer}          New index after parsing
-     */
-
-
-    Cea708Stream.prototype.setPenAttributes = function (i, service) {
-      var packetData = this.current708Packet.data;
-      var b = packetData[i];
-      var penAttr = service.currentWindow.penAttr;
-      b = packetData[++i];
-      penAttr.textTag = (b & 0xf0) >> 4; // tt
-
-      penAttr.offset = (b & 0x0c) >> 2; // o
-
-      penAttr.penSize = b & 0x03; // s
-
-      b = packetData[++i];
-      penAttr.italics = (b & 0x80) >> 7; // i
-
-      penAttr.underline = (b & 0x40) >> 6; // u
-
-      penAttr.edgeType = (b & 0x38) >> 3; // et
-
-      penAttr.fontStyle = b & 0x07; // fs
-
-      return i;
-    };
-    /**
-     * Parse and execute the SPC command.
-     *
-     * Set pen color of the current window.
-     *
-     * @param  {Integer} i        Current index in the 708 packet
-     * @param  {Service} service  The service object to be affected
-     * @return {Integer}          New index after parsing
-     */
-
-
-    Cea708Stream.prototype.setPenColor = function (i, service) {
-      var packetData = this.current708Packet.data;
-      var b = packetData[i];
-      var penColor = service.currentWindow.penColor;
-      b = packetData[++i];
-      penColor.fgOpacity = (b & 0xc0) >> 6; // fo
-
-      penColor.fgRed = (b & 0x30) >> 4; // fr
-
-      penColor.fgGreen = (b & 0x0c) >> 2; // fg
-
-      penColor.fgBlue = b & 0x03; // fb
-
-      b = packetData[++i];
-      penColor.bgOpacity = (b & 0xc0) >> 6; // bo
-
-      penColor.bgRed = (b & 0x30) >> 4; // br
-
-      penColor.bgGreen = (b & 0x0c) >> 2; // bg
-
-      penColor.bgBlue = b & 0x03; // bb
-
-      b = packetData[++i];
-      penColor.edgeRed = (b & 0x30) >> 4; // er
-
-      penColor.edgeGreen = (b & 0x0c) >> 2; // eg
-
-      penColor.edgeBlue = b & 0x03; // eb
-
-      return i;
-    };
-    /**
-     * Parse and execute the SPL command.
-     *
-     * Set pen location of the current window.
-     *
-     * @param  {Integer} i        Current index in the 708 packet
-     * @param  {Service} service  The service object to be affected
-     * @return {Integer}          New index after parsing
-     */
-
-
-    Cea708Stream.prototype.setPenLocation = function (i, service) {
-      var packetData = this.current708Packet.data;
-      var b = packetData[i];
-      var penLoc = service.currentWindow.penLoc; // Positioning isn't really supported at the moment, so this essentially just inserts a linebreak
-
-      service.currentWindow.pendingNewLine = true;
-      b = packetData[++i];
-      penLoc.row = b & 0x0f; // r
-
-      b = packetData[++i];
-      penLoc.column = b & 0x3f; // c
-
-      return i;
-    };
-    /**
-     * Execute the RST command.
-     *
-     * Reset service to a clean slate. Re-initialize.
-     *
-     * @param  {Integer} i        Current index in the 708 packet
-     * @param  {Service} service  The service object to be affected
-     * @return {Service}          Re-initialized service
-     */
-
-
-    Cea708Stream.prototype.reset = function (i, service) {
-      var pts = this.getPts(i);
-      this.flushDisplayed(pts, service);
-      return this.initService(service.serviceNum, i);
-    }; // This hash maps non-ASCII, special, and extended character codes to their
-    // proper Unicode equivalent. The first keys that are only a single byte
-    // are the non-standard ASCII characters, which simply map the CEA608 byte
-    // to the standard ASCII/Unicode. The two-byte keys that follow are the CEA608
-    // character codes, but have their MSB bitmasked with 0x03 so that a lookup
-    // can be performed regardless of the field and data channel on which the
-    // character code was received.
-
-
-    var CHARACTER_TRANSLATION = {
-      0x2a: 0xe1,
-      // á
-      0x5c: 0xe9,
-      // é
-      0x5e: 0xed,
-      // í
-      0x5f: 0xf3,
-      // ó
-      0x60: 0xfa,
-      // ú
-      0x7b: 0xe7,
-      // ç
-      0x7c: 0xf7,
-      // ÷
-      0x7d: 0xd1,
-      // Ñ
-      0x7e: 0xf1,
-      // ñ
-      0x7f: 0x2588,
-      // █
-      0x0130: 0xae,
-      // ®
-      0x0131: 0xb0,
-      // °
-      0x0132: 0xbd,
-      // ½
-      0x0133: 0xbf,
-      // ¿
-      0x0134: 0x2122,
-      // ™
-      0x0135: 0xa2,
-      // ¢
-      0x0136: 0xa3,
-      // £
-      0x0137: 0x266a,
-      // ♪
-      0x0138: 0xe0,
-      // à
-      0x0139: 0xa0,
-      //
-      0x013a: 0xe8,
-      // è
-      0x013b: 0xe2,
-      // â
-      0x013c: 0xea,
-      // ê
-      0x013d: 0xee,
-      // î
-      0x013e: 0xf4,
-      // ô
-      0x013f: 0xfb,
-      // û
-      0x0220: 0xc1,
-      // Á
-      0x0221: 0xc9,
-      // É
-      0x0222: 0xd3,
-      // Ó
-      0x0223: 0xda,
-      // Ú
-      0x0224: 0xdc,
-      // Ü
-      0x0225: 0xfc,
-      // ü
-      0x0226: 0x2018,
-      // ‘
-      0x0227: 0xa1,
-      // ¡
-      0x0228: 0x2a,
-      // *
-      0x0229: 0x27,
-      // '
-      0x022a: 0x2014,
-      // —
-      0x022b: 0xa9,
-      // ©
-      0x022c: 0x2120,
-      // ℠
-      0x022d: 0x2022,
-      // •
-      0x022e: 0x201c,
-      // “
-      0x022f: 0x201d,
-      // ”
-      0x0230: 0xc0,
-      // À
-      0x0231: 0xc2,
-      // Â
-      0x0232: 0xc7,
-      // Ç
-      0x0233: 0xc8,
-      // È
-      0x0234: 0xca,
-      // Ê
-      0x0235: 0xcb,
-      // Ë
-      0x0236: 0xeb,
-      // ë
-      0x0237: 0xce,
-      // Î
-      0x0238: 0xcf,
-      // Ï
-      0x0239: 0xef,
-      // ï
-      0x023a: 0xd4,
-      // Ô
-      0x023b: 0xd9,
-      // Ù
-      0x023c: 0xf9,
-      // ù
-      0x023d: 0xdb,
-      // Û
-      0x023e: 0xab,
-      // «
-      0x023f: 0xbb,
-      // »
-      0x0320: 0xc3,
-      // Ã
-      0x0321: 0xe3,
-      // ã
-      0x0322: 0xcd,
-      // Í
-      0x0323: 0xcc,
-      // Ì
-      0x0324: 0xec,
-      // ì
-      0x0325: 0xd2,
-      // Ò
-      0x0326: 0xf2,
-      // ò
-      0x0327: 0xd5,
-      // Õ
-      0x0328: 0xf5,
-      // õ
-      0x0329: 0x7b,
-      // {
-      0x032a: 0x7d,
-      // }
-      0x032b: 0x5c,
-      // \
-      0x032c: 0x5e,
-      // ^
-      0x032d: 0x5f,
-      // _
-      0x032e: 0x7c,
-      // |
-      0x032f: 0x7e,
-      // ~
-      0x0330: 0xc4,
-      // Ä
-      0x0331: 0xe4,
-      // ä
-      0x0332: 0xd6,
-      // Ö
-      0x0333: 0xf6,
-      // ö
-      0x0334: 0xdf,
-      // ß
-      0x0335: 0xa5,
-      // ¥
-      0x0336: 0xa4,
-      // ¤
-      0x0337: 0x2502,
-      // │
-      0x0338: 0xc5,
-      // Å
-      0x0339: 0xe5,
-      // å
-      0x033a: 0xd8,
-      // Ø
-      0x033b: 0xf8,
-      // ø
-      0x033c: 0x250c,
-      // ┌
-      0x033d: 0x2510,
-      // ┐
-      0x033e: 0x2514,
-      // └
-      0x033f: 0x2518 // ┘
-
-    };
-
-    var getCharFromCode = function getCharFromCode(code) {
-      if (code === null) {
-        return '';
-      }
-
-      code = CHARACTER_TRANSLATION[code] || code;
-      return String.fromCharCode(code);
-    }; // the index of the last row in a CEA-608 display buffer
-
-
-    var BOTTOM_ROW = 14; // This array is used for mapping PACs -> row #, since there's no way of
-    // getting it through bit logic.
-
-    var ROWS = [0x1100, 0x1120, 0x1200, 0x1220, 0x1500, 0x1520, 0x1600, 0x1620, 0x1700, 0x1720, 0x1000, 0x1300, 0x1320, 0x1400, 0x1420]; // CEA-608 captions are rendered onto a 34x15 matrix of character
-    // cells. The "bottom" row is the last element in the outer array.
-
-    var createDisplayBuffer = function createDisplayBuffer() {
-      var result = [],
-          i = BOTTOM_ROW + 1;
-
-      while (i--) {
-        result.push('');
-      }
-
-      return result;
-    };
-
-    var Cea608Stream = function Cea608Stream(field, dataChannel) {
-      Cea608Stream.prototype.init.call(this);
-      this.field_ = field || 0;
-      this.dataChannel_ = dataChannel || 0;
-      this.name_ = 'CC' + ((this.field_ << 1 | this.dataChannel_) + 1);
-      this.setConstants();
-      this.reset();
-
-      this.push = function (packet) {
-        var data, swap, char0, char1, text; // remove the parity bits
-
-        data = packet.ccData & 0x7f7f; // ignore duplicate control codes; the spec demands they're sent twice
-
-        if (data === this.lastControlCode_) {
-          this.lastControlCode_ = null;
-          return;
-        } // Store control codes
-
-
-        if ((data & 0xf000) === 0x1000) {
-          this.lastControlCode_ = data;
-        } else if (data !== this.PADDING_) {
-          this.lastControlCode_ = null;
-        }
-
-        char0 = data >>> 8;
-        char1 = data & 0xff;
-
-        if (data === this.PADDING_) {
-          return;
-        } else if (data === this.RESUME_CAPTION_LOADING_) {
-          this.mode_ = 'popOn';
-        } else if (data === this.END_OF_CAPTION_) {
-          // If an EOC is received while in paint-on mode, the displayed caption
-          // text should be swapped to non-displayed memory as if it was a pop-on
-          // caption. Because of that, we should explicitly switch back to pop-on
-          // mode
-          this.mode_ = 'popOn';
-          this.clearFormatting(packet.pts); // if a caption was being displayed, it's gone now
-
-          this.flushDisplayed(packet.pts); // flip memory
-
-          swap = this.displayed_;
-          this.displayed_ = this.nonDisplayed_;
-          this.nonDisplayed_ = swap; // start measuring the time to display the caption
-
-          this.startPts_ = packet.pts;
-        } else if (data === this.ROLL_UP_2_ROWS_) {
-          this.rollUpRows_ = 2;
-          this.setRollUp(packet.pts);
-        } else if (data === this.ROLL_UP_3_ROWS_) {
-          this.rollUpRows_ = 3;
-          this.setRollUp(packet.pts);
-        } else if (data === this.ROLL_UP_4_ROWS_) {
-          this.rollUpRows_ = 4;
-          this.setRollUp(packet.pts);
-        } else if (data === this.CARRIAGE_RETURN_) {
-          this.clearFormatting(packet.pts);
-          this.flushDisplayed(packet.pts);
-          this.shiftRowsUp_();
-          this.startPts_ = packet.pts;
-        } else if (data === this.BACKSPACE_) {
-          if (this.mode_ === 'popOn') {
-            this.nonDisplayed_[this.row_] = this.nonDisplayed_[this.row_].slice(0, -1);
-          } else {
-            this.displayed_[this.row_] = this.displayed_[this.row_].slice(0, -1);
-          }
-        } else if (data === this.ERASE_DISPLAYED_MEMORY_) {
-          this.flushDisplayed(packet.pts);
-          this.displayed_ = createDisplayBuffer();
-        } else if (data === this.ERASE_NON_DISPLAYED_MEMORY_) {
-          this.nonDisplayed_ = createDisplayBuffer();
-        } else if (data === this.RESUME_DIRECT_CAPTIONING_) {
-          if (this.mode_ !== 'paintOn') {
-            // NOTE: This should be removed when proper caption positioning is
-            // implemented
-            this.flushDisplayed(packet.pts);
-            this.displayed_ = createDisplayBuffer();
-          }
-
-          this.mode_ = 'paintOn';
-          this.startPts_ = packet.pts; // Append special characters to caption text
-        } else if (this.isSpecialCharacter(char0, char1)) {
-          // Bitmask char0 so that we can apply character transformations
-          // regardless of field and data channel.
-          // Then byte-shift to the left and OR with char1 so we can pass the
-          // entire character code to `getCharFromCode`.
-          char0 = (char0 & 0x03) << 8;
-          text = getCharFromCode(char0 | char1);
-          this[this.mode_](packet.pts, text);
-          this.column_++; // Append extended characters to caption text
-        } else if (this.isExtCharacter(char0, char1)) {
-          // Extended characters always follow their "non-extended" equivalents.
-          // IE if a "è" is desired, you'll always receive "eè"; non-compliant
-          // decoders are supposed to drop the "è", while compliant decoders
-          // backspace the "e" and insert "è".
-          // Delete the previous character
-          if (this.mode_ === 'popOn') {
-            this.nonDisplayed_[this.row_] = this.nonDisplayed_[this.row_].slice(0, -1);
-          } else {
-            this.displayed_[this.row_] = this.displayed_[this.row_].slice(0, -1);
-          } // Bitmask char0 so that we can apply character transformations
-          // regardless of field and data channel.
-          // Then byte-shift to the left and OR with char1 so we can pass the
-          // entire character code to `getCharFromCode`.
-
-
-          char0 = (char0 & 0x03) << 8;
-          text = getCharFromCode(char0 | char1);
-          this[this.mode_](packet.pts, text);
-          this.column_++; // Process mid-row codes
-        } else if (this.isMidRowCode(char0, char1)) {
-          // Attributes are not additive, so clear all formatting
-          this.clearFormatting(packet.pts); // According to the standard, mid-row codes
-          // should be replaced with spaces, so add one now
-
-          this[this.mode_](packet.pts, ' ');
-          this.column_++;
-
-          if ((char1 & 0xe) === 0xe) {
-            this.addFormatting(packet.pts, ['i']);
-          }
-
-          if ((char1 & 0x1) === 0x1) {
-            this.addFormatting(packet.pts, ['u']);
-          } // Detect offset control codes and adjust cursor
-
-        } else if (this.isOffsetControlCode(char0, char1)) {
-          // Cursor position is set by indent PAC (see below) in 4-column
-          // increments, with an additional offset code of 1-3 to reach any
-          // of the 32 columns specified by CEA-608. So all we need to do
-          // here is increment the column cursor by the given offset.
-          this.column_ += char1 & 0x03; // Detect PACs (Preamble Address Codes)
-        } else if (this.isPAC(char0, char1)) {
-          // There's no logic for PAC -> row mapping, so we have to just
-          // find the row code in an array and use its index :(
-          var row = ROWS.indexOf(data & 0x1f20); // Configure the caption window if we're in roll-up mode
-
-          if (this.mode_ === 'rollUp') {
-            // This implies that the base row is incorrectly set.
-            // As per the recommendation in CEA-608(Base Row Implementation), defer to the number
-            // of roll-up rows set.
-            if (row - this.rollUpRows_ + 1 < 0) {
-              row = this.rollUpRows_ - 1;
-            }
-
-            this.setRollUp(packet.pts, row);
-          }
-
-          if (row !== this.row_) {
-            // formatting is only persistent for current row
-            this.clearFormatting(packet.pts);
-            this.row_ = row;
-          } // All PACs can apply underline, so detect and apply
-          // (All odd-numbered second bytes set underline)
-
-
-          if (char1 & 0x1 && this.formatting_.indexOf('u') === -1) {
-            this.addFormatting(packet.pts, ['u']);
-          }
-
-          if ((data & 0x10) === 0x10) {
-            // We've got an indent level code. Each successive even number
-            // increments the column cursor by 4, so we can get the desired
-            // column position by bit-shifting to the right (to get n/2)
-            // and multiplying by 4.
-            this.column_ = ((data & 0xe) >> 1) * 4;
-          }
-
-          if (this.isColorPAC(char1)) {
-            // it's a color code, though we only support white, which
-            // can be either normal or italicized. white italics can be
-            // either 0x4e or 0x6e depending on the row, so we just
-            // bitwise-and with 0xe to see if italics should be turned on
-            if ((char1 & 0xe) === 0xe) {
-              this.addFormatting(packet.pts, ['i']);
-            }
-          } // We have a normal character in char0, and possibly one in char1
-
-        } else if (this.isNormalChar(char0)) {
-          if (char1 === 0x00) {
-            char1 = null;
-          }
-
-          text = getCharFromCode(char0);
-          text += getCharFromCode(char1);
-          this[this.mode_](packet.pts, text);
-          this.column_ += text.length;
-        } // finish data processing
-
-      };
-    };
-
-    Cea608Stream.prototype = new stream(); // Trigger a cue point that captures the current state of the
-    // display buffer
-
-    Cea608Stream.prototype.flushDisplayed = function (pts) {
-      var content = this.displayed_ // remove spaces from the start and end of the string
-      .map(function (row, index) {
-        try {
-          return row.trim();
-        } catch (e) {
-          // Ordinarily, this shouldn't happen. However, caption
-          // parsing errors should not throw exceptions and
-          // break playback.
-          this.trigger('log', {
-            level: 'warn',
-            message: 'Skipping a malformed 608 caption at index ' + index + '.'
-          });
-          return '';
-        }
-      }, this) // combine all text rows to display in one cue
-      .join('\n') // and remove blank rows from the start and end, but not the middle
-      .replace(/^\n+|\n+$/g, '');
-
-      if (content.length) {
-        this.trigger('data', {
-          startPts: this.startPts_,
-          endPts: pts,
-          text: content,
-          stream: this.name_
-        });
-      }
-    };
-    /**
-     * Zero out the data, used for startup and on seek
-     */
-
-
-    Cea608Stream.prototype.reset = function () {
-      this.mode_ = 'popOn'; // When in roll-up mode, the index of the last row that will
-      // actually display captions. If a caption is shifted to a row
-      // with a lower index than this, it is cleared from the display
-      // buffer
-
-      this.topRow_ = 0;
-      this.startPts_ = 0;
-      this.displayed_ = createDisplayBuffer();
-      this.nonDisplayed_ = createDisplayBuffer();
-      this.lastControlCode_ = null; // Track row and column for proper line-breaking and spacing
-
-      this.column_ = 0;
-      this.row_ = BOTTOM_ROW;
-      this.rollUpRows_ = 2; // This variable holds currently-applied formatting
-
-      this.formatting_ = [];
-    };
-    /**
-     * Sets up control code and related constants for this instance
-     */
-
-
-    Cea608Stream.prototype.setConstants = function () {
-      // The following attributes have these uses:
-      // ext_ :    char0 for mid-row codes, and the base for extended
-      //           chars (ext_+0, ext_+1, and ext_+2 are char0s for
-      //           extended codes)
-      // control_: char0 for control codes, except byte-shifted to the
-      //           left so that we can do this.control_ | CONTROL_CODE
-      // offset_:  char0 for tab offset codes
-      //
-      // It's also worth noting that control codes, and _only_ control codes,
-      // differ between field 1 and field2. Field 2 control codes are always
-      // their field 1 value plus 1. That's why there's the "| field" on the
-      // control value.
-      if (this.dataChannel_ === 0) {
-        this.BASE_ = 0x10;
-        this.EXT_ = 0x11;
-        this.CONTROL_ = (0x14 | this.field_) << 8;
-        this.OFFSET_ = 0x17;
-      } else if (this.dataChannel_ === 1) {
-        this.BASE_ = 0x18;
-        this.EXT_ = 0x19;
-        this.CONTROL_ = (0x1c | this.field_) << 8;
-        this.OFFSET_ = 0x1f;
-      } // Constants for the LSByte command codes recognized by Cea608Stream. This
-      // list is not exhaustive. For a more comprehensive listing and semantics see
-      // http://www.gpo.gov/fdsys/pkg/CFR-2010-title47-vol1/pdf/CFR-2010-title47-vol1-sec15-119.pdf
-      // Padding
-
-
-      this.PADDING_ = 0x0000; // Pop-on Mode
-
-      this.RESUME_CAPTION_LOADING_ = this.CONTROL_ | 0x20;
-      this.END_OF_CAPTION_ = this.CONTROL_ | 0x2f; // Roll-up Mode
-
-      this.ROLL_UP_2_ROWS_ = this.CONTROL_ | 0x25;
-      this.ROLL_UP_3_ROWS_ = this.CONTROL_ | 0x26;
-      this.ROLL_UP_4_ROWS_ = this.CONTROL_ | 0x27;
-      this.CARRIAGE_RETURN_ = this.CONTROL_ | 0x2d; // paint-on mode
-
-      this.RESUME_DIRECT_CAPTIONING_ = this.CONTROL_ | 0x29; // Erasure
-
-      this.BACKSPACE_ = this.CONTROL_ | 0x21;
-      this.ERASE_DISPLAYED_MEMORY_ = this.CONTROL_ | 0x2c;
-      this.ERASE_NON_DISPLAYED_MEMORY_ = this.CONTROL_ | 0x2e;
-    };
-    /**
-     * Detects if the 2-byte packet data is a special character
-     *
-     * Special characters have a second byte in the range 0x30 to 0x3f,
-     * with the first byte being 0x11 (for data channel 1) or 0x19 (for
-     * data channel 2).
-     *
-     * @param  {Integer} char0 The first byte
-     * @param  {Integer} char1 The second byte
-     * @return {Boolean}       Whether the 2 bytes are an special character
-     */
-
-
-    Cea608Stream.prototype.isSpecialCharacter = function (char0, char1) {
-      return char0 === this.EXT_ && char1 >= 0x30 && char1 <= 0x3f;
-    };
-    /**
-     * Detects if the 2-byte packet data is an extended character
-     *
-     * Extended characters have a second byte in the range 0x20 to 0x3f,
-     * with the first byte being 0x12 or 0x13 (for data channel 1) or
-     * 0x1a or 0x1b (for data channel 2).
-     *
-     * @param  {Integer} char0 The first byte
-     * @param  {Integer} char1 The second byte
-     * @return {Boolean}       Whether the 2 bytes are an extended character
-     */
-
-
-    Cea608Stream.prototype.isExtCharacter = function (char0, char1) {
-      return (char0 === this.EXT_ + 1 || char0 === this.EXT_ + 2) && char1 >= 0x20 && char1 <= 0x3f;
-    };
-    /**
-     * Detects if the 2-byte packet is a mid-row code
-     *
-     * Mid-row codes have a second byte in the range 0x20 to 0x2f, with
-     * the first byte being 0x11 (for data channel 1) or 0x19 (for data
-     * channel 2).
-     *
-     * @param  {Integer} char0 The first byte
-     * @param  {Integer} char1 The second byte
-     * @return {Boolean}       Whether the 2 bytes are a mid-row code
-     */
-
-
-    Cea608Stream.prototype.isMidRowCode = function (char0, char1) {
-      return char0 === this.EXT_ && char1 >= 0x20 && char1 <= 0x2f;
-    };
-    /**
-     * Detects if the 2-byte packet is an offset control code
-     *
-     * Offset control codes have a second byte in the range 0x21 to 0x23,
-     * with the first byte being 0x17 (for data channel 1) or 0x1f (for
-     * data channel 2).
-     *
-     * @param  {Integer} char0 The first byte
-     * @param  {Integer} char1 The second byte
-     * @return {Boolean}       Whether the 2 bytes are an offset control code
-     */
-
-
-    Cea608Stream.prototype.isOffsetControlCode = function (char0, char1) {
-      return char0 === this.OFFSET_ && char1 >= 0x21 && char1 <= 0x23;
-    };
-    /**
-     * Detects if the 2-byte packet is a Preamble Address Code
-     *
-     * PACs have a first byte in the range 0x10 to 0x17 (for data channel 1)
-     * or 0x18 to 0x1f (for data channel 2), with the second byte in the
-     * range 0x40 to 0x7f.
-     *
-     * @param  {Integer} char0 The first byte
-     * @param  {Integer} char1 The second byte
-     * @return {Boolean}       Whether the 2 bytes are a PAC
-     */
-
-
-    Cea608Stream.prototype.isPAC = function (char0, char1) {
-      return char0 >= this.BASE_ && char0 < this.BASE_ + 8 && char1 >= 0x40 && char1 <= 0x7f;
-    };
-    /**
-     * Detects if a packet's second byte is in the range of a PAC color code
-     *
-     * PAC color codes have the second byte be in the range 0x40 to 0x4f, or
-     * 0x60 to 0x6f.
-     *
-     * @param  {Integer} char1 The second byte
-     * @return {Boolean}       Whether the byte is a color PAC
-     */
-
-
-    Cea608Stream.prototype.isColorPAC = function (char1) {
-      return char1 >= 0x40 && char1 <= 0x4f || char1 >= 0x60 && char1 <= 0x7f;
-    };
-    /**
-     * Detects if a single byte is in the range of a normal character
-     *
-     * Normal text bytes are in the range 0x20 to 0x7f.
-     *
-     * @param  {Integer} char  The byte
-     * @return {Boolean}       Whether the byte is a normal character
-     */
-
-
-    Cea608Stream.prototype.isNormalChar = function (_char2) {
-      return _char2 >= 0x20 && _char2 <= 0x7f;
-    };
-    /**
-     * Configures roll-up
-     *
-     * @param  {Integer} pts         Current PTS
-     * @param  {Integer} newBaseRow  Used by PACs to slide the current window to
-     *                               a new position
-     */
-
-
-    Cea608Stream.prototype.setRollUp = function (pts, newBaseRow) {
-      // Reset the base row to the bottom row when switching modes
-      if (this.mode_ !== 'rollUp') {
-        this.row_ = BOTTOM_ROW;
-        this.mode_ = 'rollUp'; // Spec says to wipe memories when switching to roll-up
-
-        this.flushDisplayed(pts);
-        this.nonDisplayed_ = createDisplayBuffer();
-        this.displayed_ = createDisplayBuffer();
-      }
-
-      if (newBaseRow !== undefined && newBaseRow !== this.row_) {
-        // move currently displayed captions (up or down) to the new base row
-        for (var i = 0; i < this.rollUpRows_; i++) {
-          this.displayed_[newBaseRow - i] = this.displayed_[this.row_ - i];
-          this.displayed_[this.row_ - i] = '';
-        }
-      }
-
-      if (newBaseRow === undefined) {
-        newBaseRow = this.row_;
-      }
-
-      this.topRow_ = newBaseRow - this.rollUpRows_ + 1;
-    }; // Adds the opening HTML tag for the passed character to the caption text,
-    // and keeps track of it for later closing
-
-
-    Cea608Stream.prototype.addFormatting = function (pts, format) {
-      this.formatting_ = this.formatting_.concat(format);
-      var text = format.reduce(function (text, format) {
-        return text + '<' + format + '>';
-      }, '');
-      this[this.mode_](pts, text);
-    }; // Adds HTML closing tags for current formatting to caption text and
-    // clears remembered formatting
-
-
-    Cea608Stream.prototype.clearFormatting = function (pts) {
-      if (!this.formatting_.length) {
-        return;
-      }
-
-      var text = this.formatting_.reverse().reduce(function (text, format) {
-        return text + '</' + format + '>';
-      }, '');
-      this.formatting_ = [];
-      this[this.mode_](pts, text);
-    }; // Mode Implementations
-
-
-    Cea608Stream.prototype.popOn = function (pts, text) {
-      var baseRow = this.nonDisplayed_[this.row_]; // buffer characters
-
-      baseRow += text;
-      this.nonDisplayed_[this.row_] = baseRow;
-    };
-
-    Cea608Stream.prototype.rollUp = function (pts, text) {
-      var baseRow = this.displayed_[this.row_];
-      baseRow += text;
-      this.displayed_[this.row_] = baseRow;
-    };
-
-    Cea608Stream.prototype.shiftRowsUp_ = function () {
-      var i; // clear out inactive rows
-
-      for (i = 0; i < this.topRow_; i++) {
-        this.displayed_[i] = '';
-      }
-
-      for (i = this.row_ + 1; i < BOTTOM_ROW + 1; i++) {
-        this.displayed_[i] = '';
-      } // shift displayed rows up
-
-
-      for (i = this.topRow_; i < this.row_; i++) {
-        this.displayed_[i] = this.displayed_[i + 1];
-      } // clear out the bottom row
-
-
-      this.displayed_[this.row_] = '';
-    };
-
-    Cea608Stream.prototype.paintOn = function (pts, text) {
-      var baseRow = this.displayed_[this.row_];
-      baseRow += text;
-      this.displayed_[this.row_] = baseRow;
-    }; // exports
-
-
-    var captionStream = {
-      CaptionStream: CaptionStream$1,
-      Cea608Stream: Cea608Stream,
-      Cea708Stream: Cea708Stream
-    };
-    /**
-     * mux.js
-     *
-     * Copyright (c) Brightcove
-     * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE
-     */
-
-    var streamTypes = {
-      H264_STREAM_TYPE: 0x1B,
-      ADTS_STREAM_TYPE: 0x0F,
-      METADATA_STREAM_TYPE: 0x15
-    };
-    var MAX_TS = 8589934592;
-    var RO_THRESH = 4294967296;
-    var TYPE_SHARED = 'shared';
-
-    var handleRollover$1 = function handleRollover(value, reference) {
-      var direction = 1;
-
-      if (value > reference) {
-        // If the current timestamp value is greater than our reference timestamp and we detect a
-        // timestamp rollover, this means the roll over is happening in the opposite direction.
-        // Example scenario: Enter a long stream/video just after a rollover occurred. The reference
-        // point will be set to a small number, e.g. 1. The user then seeks backwards over the
-        // rollover point. In loading this segment, the timestamp values will be very large,
-        // e.g. 2^33 - 1. Since this comes before the data we loaded previously, we want to adjust
-        // the time stamp to be `value - 2^33`.
-        direction = -1;
-      } // Note: A seek forwards or back that is greater than the RO_THRESH (2^32, ~13 hours) will
-      // cause an incorrect adjustment.
-
-
-      while (Math.abs(reference - value) > RO_THRESH) {
-        value += direction * MAX_TS;
-      }
-
-      return value;
-    };
-
-    var TimestampRolloverStream$1 = function TimestampRolloverStream(type) {
-      var lastDTS, referenceDTS;
-      TimestampRolloverStream.prototype.init.call(this); // The "shared" type is used in cases where a stream will contain muxed
-      // video and audio. We could use `undefined` here, but having a string
-      // makes debugging a little clearer.
-
-      this.type_ = type || TYPE_SHARED;
-
-      this.push = function (data) {
-        // Any "shared" rollover streams will accept _all_ data. Otherwise,
-        // streams will only accept data that matches their type.
-        if (this.type_ !== TYPE_SHARED && data.type !== this.type_) {
-          return;
-        }
-
-        if (referenceDTS === undefined) {
-          referenceDTS = data.dts;
-        }
-
-        data.dts = handleRollover$1(data.dts, referenceDTS);
-        data.pts = handleRollover$1(data.pts, referenceDTS);
-        lastDTS = data.dts;
-        this.trigger('data', data);
-      };
-
-      this.flush = function () {
-        referenceDTS = lastDTS;
-        this.trigger('done');
-      };
-
-      this.endTimeline = function () {
-        this.flush();
-        this.trigger('endedtimeline');
-      };
-
-      this.discontinuity = function () {
-        referenceDTS = void 0;
-        lastDTS = void 0;
-      };
-
-      this.reset = function () {
-        this.discontinuity();
-        this.trigger('reset');
-      };
-    };
-
-    TimestampRolloverStream$1.prototype = new stream();
-    var timestampRolloverStream = {
-      TimestampRolloverStream: TimestampRolloverStream$1,
-      handleRollover: handleRollover$1
-    };
-
-    var percentEncode$1 = function percentEncode(bytes, start, end) {
-      var i,
-          result = '';
-
-      for (i = start; i < end; i++) {
-        result += '%' + ('00' + bytes[i].toString(16)).slice(-2);
-      }
-
-      return result;
-    },
-        // return the string representation of the specified byte range,
-    // interpreted as UTf-8.
-    parseUtf8 = function parseUtf8(bytes, start, end) {
-      return decodeURIComponent(percentEncode$1(bytes, start, end));
-    },
-        // return the string representation of the specified byte range,
-    // interpreted as ISO-8859-1.
-    parseIso88591$1 = function parseIso88591(bytes, start, end) {
-      return unescape(percentEncode$1(bytes, start, end)); // jshint ignore:line
-    },
-        parseSyncSafeInteger$1 = function parseSyncSafeInteger(data) {
-      return data[0] << 21 | data[1] << 14 | data[2] << 7 | data[3];
-    },
-        tagParsers = {
-      TXXX: function TXXX(tag) {
-        var i;
-
-        if (tag.data[0] !== 3) {
-          // ignore frames with unrecognized character encodings
-          return;
-        }
-
-        for (i = 1; i < tag.data.length; i++) {
-          if (tag.data[i] === 0) {
-            // parse the text fields
-            tag.description = parseUtf8(tag.data, 1, i); // do not include the null terminator in the tag value
-
-            tag.value = parseUtf8(tag.data, i + 1, tag.data.length).replace(/\0*$/, '');
-            break;
-          }
-        }
-
-        tag.data = tag.value;
-      },
-      WXXX: function WXXX(tag) {
-        var i;
-
-        if (tag.data[0] !== 3) {
-          // ignore frames with unrecognized character encodings
-          return;
-        }
-
-        for (i = 1; i < tag.data.length; i++) {
-          if (tag.data[i] === 0) {
-            // parse the description and URL fields
-            tag.description = parseUtf8(tag.data, 1, i);
-            tag.url = parseUtf8(tag.data, i + 1, tag.data.length);
-            break;
-          }
-        }
-      },
-      PRIV: function PRIV(tag) {
-        var i;
-
-        for (i = 0; i < tag.data.length; i++) {
-          if (tag.data[i] === 0) {
-            // parse the description and URL fields
-            tag.owner = parseIso88591$1(tag.data, 0, i);
-            break;
-          }
-        }
-
-        tag.privateData = tag.data.subarray(i + 1);
-        tag.data = tag.privateData;
-      }
-    },
-        _MetadataStream;
-
-    _MetadataStream = function MetadataStream(options) {
-      var settings = {
-        // the bytes of the program-level descriptor field in MP2T
-        // see ISO/IEC 13818-1:2013 (E), section 2.6 "Program and
-        // program element descriptors"
-        descriptor: options && options.descriptor
-      },
-          // the total size in bytes of the ID3 tag being parsed
-      tagSize = 0,
-          // tag data that is not complete enough to be parsed
-      buffer = [],
-          // the total number of bytes currently in the buffer
-      bufferSize = 0,
-          i;
-
-      _MetadataStream.prototype.init.call(this); // calculate the text track in-band metadata track dispatch type
-      // https://html.spec.whatwg.org/multipage/embedded-content.html#steps-to-expose-a-media-resource-specific-text-track
-
-
-      this.dispatchType = streamTypes.METADATA_STREAM_TYPE.toString(16);
-
-      if (settings.descriptor) {
-        for (i = 0; i < settings.descriptor.length; i++) {
-          this.dispatchType += ('00' + settings.descriptor[i].toString(16)).slice(-2);
-        }
-      }
-
-      this.push = function (chunk) {
-        var tag, frameStart, frameSize, frame, i, frameHeader;
-
-        if (chunk.type !== 'timed-metadata') {
-          return;
-        } // if data_alignment_indicator is set in the PES header,
-        // we must have the start of a new ID3 tag. Assume anything
-        // remaining in the buffer was malformed and throw it out
-
-
-        if (chunk.dataAlignmentIndicator) {
-          bufferSize = 0;
-          buffer.length = 0;
-        } // ignore events that don't look like ID3 data
-
-
-        if (buffer.length === 0 && (chunk.data.length < 10 || chunk.data[0] !== 'I'.charCodeAt(0) || chunk.data[1] !== 'D'.charCodeAt(0) || chunk.data[2] !== '3'.charCodeAt(0))) {
-          this.trigger('log', {
-            level: 'warn',
-            message: 'Skipping unrecognized metadata packet'
-          });
-          return;
-        } // add this chunk to the data we've collected so far
-
-
-        buffer.push(chunk);
-        bufferSize += chunk.data.byteLength; // grab the size of the entire frame from the ID3 header
-
-        if (buffer.length === 1) {
-          // the frame size is transmitted as a 28-bit integer in the
-          // last four bytes of the ID3 header.
-          // The most significant bit of each byte is dropped and the
-          // results concatenated to recover the actual value.
-          tagSize = parseSyncSafeInteger$1(chunk.data.subarray(6, 10)); // ID3 reports the tag size excluding the header but it's more
-          // convenient for our comparisons to include it
-
-          tagSize += 10;
-        } // if the entire frame has not arrived, wait for more data
-
-
-        if (bufferSize < tagSize) {
-          return;
-        } // collect the entire frame so it can be parsed
-
-
-        tag = {
-          data: new Uint8Array(tagSize),
-          frames: [],
-          pts: buffer[0].pts,
-          dts: buffer[0].dts
-        };
-
-        for (i = 0; i < tagSize;) {
-          tag.data.set(buffer[0].data.subarray(0, tagSize - i), i);
-          i += buffer[0].data.byteLength;
-          bufferSize -= buffer[0].data.byteLength;
-          buffer.shift();
-        } // find the start of the first frame and the end of the tag
-
-
-        frameStart = 10;
-
-        if (tag.data[5] & 0x40) {
-          // advance the frame start past the extended header
-          frameStart += 4; // header size field
-
-          frameStart += parseSyncSafeInteger$1(tag.data.subarray(10, 14)); // clip any padding off the end
-
-          tagSize -= parseSyncSafeInteger$1(tag.data.subarray(16, 20));
-        } // parse one or more ID3 frames
-        // http://id3.org/id3v2.3.0#ID3v2_frame_overview
-
-
-        do {
-          // determine the number of bytes in this frame
-          frameSize = parseSyncSafeInteger$1(tag.data.subarray(frameStart + 4, frameStart + 8));
-
-          if (frameSize < 1) {
-            this.trigger('log', {
-              level: 'warn',
-              message: 'Malformed ID3 frame encountered. Skipping metadata parsing.'
-            });
-            return;
-          }
-
-          frameHeader = String.fromCharCode(tag.data[frameStart], tag.data[frameStart + 1], tag.data[frameStart + 2], tag.data[frameStart + 3]);
-          frame = {
-            id: frameHeader,
-            data: tag.data.subarray(frameStart + 10, frameStart + frameSize + 10)
-          };
-          frame.key = frame.id;
-
-          if (tagParsers[frame.id]) {
-            tagParsers[frame.id](frame); // handle the special PRIV frame used to indicate the start
-            // time for raw AAC data
-
-            if (frame.owner === 'com.apple.streaming.transportStreamTimestamp') {
-              var d = frame.data,
-                  size = (d[3] & 0x01) << 30 | d[4] << 22 | d[5] << 14 | d[6] << 6 | d[7] >>> 2;
-              size *= 4;
-              size += d[7] & 0x03;
-              frame.timeStamp = size; // in raw AAC, all subsequent data will be timestamped based
-              // on the value of this frame
-              // we couldn't have known the appropriate pts and dts before
-              // parsing this ID3 tag so set those values now
-
-              if (tag.pts === undefined && tag.dts === undefined) {
-                tag.pts = frame.timeStamp;
-                tag.dts = frame.timeStamp;
-              }
-
-              this.trigger('timestamp', frame);
-            }
-          }
-
-          tag.frames.push(frame);
-          frameStart += 10; // advance past the frame header
-
-          frameStart += frameSize; // advance past the frame body
-        } while (frameStart < tagSize);
-
-        this.trigger('data', tag);
-      };
-    };
-
-    _MetadataStream.prototype = new stream();
-    var metadataStream = _MetadataStream;
-    var TimestampRolloverStream = timestampRolloverStream.TimestampRolloverStream; // object types
-
-    var _TransportPacketStream, _TransportParseStream, _ElementaryStream; // constants
-
-
-    var MP2T_PACKET_LENGTH$1 = 188,
-        // bytes
-    SYNC_BYTE$1 = 0x47;
-    /**
-     * Splits an incoming stream of binary data into MPEG-2 Transport
-     * Stream packets.
-     */
-
-    _TransportPacketStream = function TransportPacketStream() {
-      var buffer = new Uint8Array(MP2T_PACKET_LENGTH$1),
-          bytesInBuffer = 0;
-
-      _TransportPacketStream.prototype.init.call(this); // Deliver new bytes to the stream.
-
-      /**
-       * Split a stream of data into M2TS packets
-      **/
-
-
-      this.push = function (bytes) {
-        var startIndex = 0,
-            endIndex = MP2T_PACKET_LENGTH$1,
-            everything; // If there are bytes remaining from the last segment, prepend them to the
-        // bytes that were pushed in
-
-        if (bytesInBuffer) {
-          everything = new Uint8Array(bytes.byteLength + bytesInBuffer);
-          everything.set(buffer.subarray(0, bytesInBuffer));
-          everything.set(bytes, bytesInBuffer);
-          bytesInBuffer = 0;
-        } else {
-          everything = bytes;
-        } // While we have enough data for a packet
-
-
-        while (endIndex < everything.byteLength) {
-          // Look for a pair of start and end sync bytes in the data..
-          if (everything[startIndex] === SYNC_BYTE$1 && everything[endIndex] === SYNC_BYTE$1) {
-            // We found a packet so emit it and jump one whole packet forward in
-            // the stream
-            this.trigger('data', everything.subarray(startIndex, endIndex));
-            startIndex += MP2T_PACKET_LENGTH$1;
-            endIndex += MP2T_PACKET_LENGTH$1;
-            continue;
-          } // If we get here, we have somehow become de-synchronized and we need to step
-          // forward one byte at a time until we find a pair of sync bytes that denote
-          // a packet
-
-
-          startIndex++;
-          endIndex++;
-        } // If there was some data left over at the end of the segment that couldn't
-        // possibly be a whole packet, keep it because it might be the start of a packet
-        // that continues in the next segment
-
-
-        if (startIndex < everything.byteLength) {
-          buffer.set(everything.subarray(startIndex), 0);
-          bytesInBuffer = everything.byteLength - startIndex;
-        }
-      };
-      /**
-       * Passes identified M2TS packets to the TransportParseStream to be parsed
-      **/
-
-
-      this.flush = function () {
-        // If the buffer contains a whole packet when we are being flushed, emit it
-        // and empty the buffer. Otherwise hold onto the data because it may be
-        // important for decoding the next segment
-        if (bytesInBuffer === MP2T_PACKET_LENGTH$1 && buffer[0] === SYNC_BYTE$1) {
-          this.trigger('data', buffer);
-          bytesInBuffer = 0;
-        }
-
-        this.trigger('done');
-      };
-
-      this.endTimeline = function () {
-        this.flush();
-        this.trigger('endedtimeline');
-      };
-
-      this.reset = function () {
-        bytesInBuffer = 0;
-        this.trigger('reset');
-      };
-    };
-
-    _TransportPacketStream.prototype = new stream();
-    /**
-     * Accepts an MP2T TransportPacketStream and emits data events with parsed
-     * forms of the individual transport stream packets.
-     */
-
-    _TransportParseStream = function TransportParseStream() {
-      var parsePsi, parsePat, parsePmt, self;
-
-      _TransportParseStream.prototype.init.call(this);
-
-      self = this;
-      this.packetsWaitingForPmt = [];
-      this.programMapTable = undefined;
-
-      parsePsi = function parsePsi(payload, psi) {
-        var offset = 0; // PSI packets may be split into multiple sections and those
-        // sections may be split into multiple packets. If a PSI
-        // section starts in this packet, the payload_unit_start_indicator
-        // will be true and the first byte of the payload will indicate
-        // the offset from the current position to the start of the
-        // section.
-
-        if (psi.payloadUnitStartIndicator) {
-          offset += payload[offset] + 1;
-        }
-
-        if (psi.type === 'pat') {
-          parsePat(payload.subarray(offset), psi);
-        } else {
-          parsePmt(payload.subarray(offset), psi);
-        }
-      };
-
-      parsePat = function parsePat(payload, pat) {
-        pat.section_number = payload[7]; // eslint-disable-line camelcase
-
-        pat.last_section_number = payload[8]; // eslint-disable-line camelcase
-        // skip the PSI header and parse the first PMT entry
-
-        self.pmtPid = (payload[10] & 0x1F) << 8 | payload[11];
-        pat.pmtPid = self.pmtPid;
-      };
-      /**
-       * Parse out the relevant fields of a Program Map Table (PMT).
-       * @param payload {Uint8Array} the PMT-specific portion of an MP2T
-       * packet. The first byte in this array should be the table_id
-       * field.
-       * @param pmt {object} the object that should be decorated with
-       * fields parsed from the PMT.
-       */
-
-
-      parsePmt = function parsePmt(payload, pmt) {
-        var sectionLength, tableEnd, programInfoLength, offset; // PMTs can be sent ahead of the time when they should actually
-        // take effect. We don't believe this should ever be the case
-        // for HLS but we'll ignore "forward" PMT declarations if we see
-        // them. Future PMT declarations have the current_next_indicator
-        // set to zero.
-
-        if (!(payload[5] & 0x01)) {
-          return;
-        } // overwrite any existing program map table
-
-
-        self.programMapTable = {
-          video: null,
-          audio: null,
-          'timed-metadata': {}
-        }; // the mapping table ends at the end of the current section
-
-        sectionLength = (payload[1] & 0x0f) << 8 | payload[2];
-        tableEnd = 3 + sectionLength - 4; // to determine where the table is, we have to figure out how
-        // long the program info descriptors are
-
-        programInfoLength = (payload[10] & 0x0f) << 8 | payload[11]; // advance the offset to the first entry in the mapping table
-
-        offset = 12 + programInfoLength;
-
-        while (offset < tableEnd) {
-          var streamType = payload[offset];
-          var pid = (payload[offset + 1] & 0x1F) << 8 | payload[offset + 2]; // only map a single elementary_pid for audio and video stream types
-          // TODO: should this be done for metadata too? for now maintain behavior of
-          //       multiple metadata streams
-
-          if (streamType === streamTypes.H264_STREAM_TYPE && self.programMapTable.video === null) {
-            self.programMapTable.video = pid;
-          } else if (streamType === streamTypes.ADTS_STREAM_TYPE && self.programMapTable.audio === null) {
-            self.programMapTable.audio = pid;
-          } else if (streamType === streamTypes.METADATA_STREAM_TYPE) {
-            // map pid to stream type for metadata streams
-            self.programMapTable['timed-metadata'][pid] = streamType;
-          } // move to the next table entry
-          // skip past the elementary stream descriptors, if present
-
-
-          offset += ((payload[offset + 3] & 0x0F) << 8 | payload[offset + 4]) + 5;
-        } // record the map on the packet as well
-
-
-        pmt.programMapTable = self.programMapTable;
-      };
-      /**
-       * Deliver a new MP2T packet to the next stream in the pipeline.
-       */
-
-
-      this.push = function (packet) {
-        var result = {},
-            offset = 4;
-        result.payloadUnitStartIndicator = !!(packet[1] & 0x40); // pid is a 13-bit field starting at the last bit of packet[1]
-
-        result.pid = packet[1] & 0x1f;
-        result.pid <<= 8;
-        result.pid |= packet[2]; // if an adaption field is present, its length is specified by the
-        // fifth byte of the TS packet header. The adaptation field is
-        // used to add stuffing to PES packets that don't fill a complete
-        // TS packet, and to specify some forms of timing and control data
-        // that we do not currently use.
-
-        if ((packet[3] & 0x30) >>> 4 > 0x01) {
-          offset += packet[offset] + 1;
-        } // parse the rest of the packet based on the type
-
-
-        if (result.pid === 0) {
-          result.type = 'pat';
-          parsePsi(packet.subarray(offset), result);
-          this.trigger('data', result);
-        } else if (result.pid === this.pmtPid) {
-          result.type = 'pmt';
-          parsePsi(packet.subarray(offset), result);
-          this.trigger('data', result); // if there are any packets waiting for a PMT to be found, process them now
-
-          while (this.packetsWaitingForPmt.length) {
-            this.processPes_.apply(this, this.packetsWaitingForPmt.shift());
-          }
-        } else if (this.programMapTable === undefined) {
-          // When we have not seen a PMT yet, defer further processing of
-          // PES packets until one has been parsed
-          this.packetsWaitingForPmt.push([packet, offset, result]);
-        } else {
-          this.processPes_(packet, offset, result);
-        }
-      };
-
-      this.processPes_ = function (packet, offset, result) {
-        // set the appropriate stream type
-        if (result.pid === this.programMapTable.video) {
-          result.streamType = streamTypes.H264_STREAM_TYPE;
-        } else if (result.pid === this.programMapTable.audio) {
-          result.streamType = streamTypes.ADTS_STREAM_TYPE;
-        } else {
-          // if not video or audio, it is timed-metadata or unknown
-          // if unknown, streamType will be undefined
-          result.streamType = this.programMapTable['timed-metadata'][result.pid];
-        }
-
-        result.type = 'pes';
-        result.data = packet.subarray(offset);
-        this.trigger('data', result);
-      };
-    };
-
-    _TransportParseStream.prototype = new stream();
-    _TransportParseStream.STREAM_TYPES = {
-      h264: 0x1b,
-      adts: 0x0f
-    };
-    /**
-     * Reconsistutes program elementary stream (PES) packets from parsed
-     * transport stream packets. That is, if you pipe an
-     * mp2t.TransportParseStream into a mp2t.ElementaryStream, the output
-     * events will be events which capture the bytes for individual PES
-     * packets plus relevant metadata that has been extracted from the
-     * container.
-     */
-
-    _ElementaryStream = function ElementaryStream() {
-      var self = this,
-          segmentHadPmt = false,
-          // PES packet fragments
-      video = {
-        data: [],
-        size: 0
-      },
-          audio = {
-        data: [],
-        size: 0
-      },
-          timedMetadata = {
-        data: [],
-        size: 0
-      },
-          programMapTable,
-          parsePes = function parsePes(payload, pes) {
-        var ptsDtsFlags;
-        var startPrefix = payload[0] << 16 | payload[1] << 8 | payload[2]; // default to an empty array
-
-        pes.data = new Uint8Array(); // In certain live streams, the start of a TS fragment has ts packets
-        // that are frame data that is continuing from the previous fragment. This
-        // is to check that the pes data is the start of a new pes payload
-
-        if (startPrefix !== 1) {
-          return;
-        } // get the packet length, this will be 0 for video
-
-
-        pes.packetLength = 6 + (payload[4] << 8 | payload[5]); // find out if this packets starts a new keyframe
-
-        pes.dataAlignmentIndicator = (payload[6] & 0x04) !== 0; // PES packets may be annotated with a PTS value, or a PTS value
-        // and a DTS value. Determine what combination of values is
-        // available to work with.
-
-        ptsDtsFlags = payload[7]; // PTS and DTS are normally stored as a 33-bit number.  Javascript
-        // performs all bitwise operations on 32-bit integers but javascript
-        // supports a much greater range (52-bits) of integer using standard
-        // mathematical operations.
-        // We construct a 31-bit value using bitwise operators over the 31
-        // most significant bits and then multiply by 4 (equal to a left-shift
-        // of 2) before we add the final 2 least significant bits of the
-        // timestamp (equal to an OR.)
-
-        if (ptsDtsFlags & 0xC0) {
-          // the PTS and DTS are not written out directly. For information
-          // on how they are encoded, see
-          // http://dvd.sourceforge.net/dvdinfo/pes-hdr.html
-          pes.pts = (payload[9] & 0x0E) << 27 | (payload[10] & 0xFF) << 20 | (payload[11] & 0xFE) << 12 | (payload[12] & 0xFF) << 5 | (payload[13] & 0xFE) >>> 3;
-          pes.pts *= 4; // Left shift by 2
-
-          pes.pts += (payload[13] & 0x06) >>> 1; // OR by the two LSBs
-
-          pes.dts = pes.pts;
-
-          if (ptsDtsFlags & 0x40) {
-            pes.dts = (payload[14] & 0x0E) << 27 | (payload[15] & 0xFF) << 20 | (payload[16] & 0xFE) << 12 | (payload[17] & 0xFF) << 5 | (payload[18] & 0xFE) >>> 3;
-            pes.dts *= 4; // Left shift by 2
-
-            pes.dts += (payload[18] & 0x06) >>> 1; // OR by the two LSBs
-          }
-        } // the data section starts immediately after the PES header.
-        // pes_header_data_length specifies the number of header bytes
-        // that follow the last byte of the field.
-
-
-        pes.data = payload.subarray(9 + payload[8]);
-      },
-
-      /**
-        * Pass completely parsed PES packets to the next stream in the pipeline
-       **/
-      flushStream = function flushStream(stream, type, forceFlush) {
-        var packetData = new Uint8Array(stream.size),
-            event = {
-          type: type
-        },
-            i = 0,
-            offset = 0,
-            packetFlushable = false,
-            fragment; // do nothing if there is not enough buffered data for a complete
-        // PES header
-
-        if (!stream.data.length || stream.size < 9) {
-          return;
-        }
-
-        event.trackId = stream.data[0].pid; // reassemble the packet
-
-        for (i = 0; i < stream.data.length; i++) {
-          fragment = stream.data[i];
-          packetData.set(fragment.data, offset);
-          offset += fragment.data.byteLength;
-        } // parse assembled packet's PES header
-
-
-        parsePes(packetData, event); // non-video PES packets MUST have a non-zero PES_packet_length
-        // check that there is enough stream data to fill the packet
-
-        packetFlushable = type === 'video' || event.packetLength <= stream.size; // flush pending packets if the conditions are right
-
-        if (forceFlush || packetFlushable) {
-          stream.size = 0;
-          stream.data.length = 0;
-        } // only emit packets that are complete. this is to avoid assembling
-        // incomplete PES packets due to poor segmentation
-
-
-        if (packetFlushable) {
-          self.trigger('data', event);
-        }
-      };
-
-      _ElementaryStream.prototype.init.call(this);
-      /**
-       * Identifies M2TS packet types and parses PES packets using metadata
-       * parsed from the PMT
-       **/
-
-
-      this.push = function (data) {
-        ({
-          pat: function pat() {// we have to wait for the PMT to arrive as well before we
-            // have any meaningful metadata
-          },
-          pes: function pes() {
-            var stream, streamType;
-
-            switch (data.streamType) {
-              case streamTypes.H264_STREAM_TYPE:
-                stream = video;
-                streamType = 'video';
-                break;
-
-              case streamTypes.ADTS_STREAM_TYPE:
-                stream = audio;
-                streamType = 'audio';
-                break;
-
-              case streamTypes.METADATA_STREAM_TYPE:
-                stream = timedMetadata;
-                streamType = 'timed-metadata';
-                break;
-
-              default:
-                // ignore unknown stream types
-                return;
-            } // if a new packet is starting, we can flush the completed
-            // packet
-
-
-            if (data.payloadUnitStartIndicator) {
-              flushStream(stream, streamType, true);
-            } // buffer this fragment until we are sure we've received the
-            // complete payload
-
-
-            stream.data.push(data);
-            stream.size += data.data.byteLength;
-          },
-          pmt: function pmt() {
-            var event = {
-              type: 'metadata',
-              tracks: []
-            };
-            programMapTable = data.programMapTable; // translate audio and video streams to tracks
-
-            if (programMapTable.video !== null) {
-              event.tracks.push({
-                timelineStartInfo: {
-                  baseMediaDecodeTime: 0
-                },
-                id: +programMapTable.video,
-                codec: 'avc',
-                type: 'video'
-              });
-            }
-
-            if (programMapTable.audio !== null) {
-              event.tracks.push({
-                timelineStartInfo: {
-                  baseMediaDecodeTime: 0
-                },
-                id: +programMapTable.audio,
-                codec: 'adts',
-                type: 'audio'
-              });
-            }
-
-            segmentHadPmt = true;
-            self.trigger('data', event);
-          }
-        })[data.type]();
-      };
-
-      this.reset = function () {
-        video.size = 0;
-        video.data.length = 0;
-        audio.size = 0;
-        audio.data.length = 0;
-        this.trigger('reset');
-      };
-      /**
-       * Flush any remaining input. Video PES packets may be of variable
-       * length. Normally, the start of a new video packet can trigger the
-       * finalization of the previous packet. That is not possible if no
-       * more video is forthcoming, however. In that case, some other
-       * mechanism (like the end of the file) has to be employed. When it is
-       * clear that no additional data is forthcoming, calling this method
-       * will flush the buffered packets.
-       */
-
-
-      this.flushStreams_ = function () {
-        // !!THIS ORDER IS IMPORTANT!!
-        // video first then audio
-        flushStream(video, 'video');
-        flushStream(audio, 'audio');
-        flushStream(timedMetadata, 'timed-metadata');
-      };
-
-      this.flush = function () {
-        // if on flush we haven't had a pmt emitted
-        // and we have a pmt to emit. emit the pmt
-        // so that we trigger a trackinfo downstream.
-        if (!segmentHadPmt && programMapTable) {
-          var pmt = {
-            type: 'metadata',
-            tracks: []
-          }; // translate audio and video streams to tracks
-
-          if (programMapTable.video !== null) {
-            pmt.tracks.push({
-              timelineStartInfo: {
-                baseMediaDecodeTime: 0
-              },
-              id: +programMapTable.video,
-              codec: 'avc',
-              type: 'video'
-            });
-          }
-
-          if (programMapTable.audio !== null) {
-            pmt.tracks.push({
-              timelineStartInfo: {
-                baseMediaDecodeTime: 0
-              },
-              id: +programMapTable.audio,
-              codec: 'adts',
-              type: 'audio'
-            });
-          }
-
-          self.trigger('data', pmt);
-        }
-
-        segmentHadPmt = false;
-        this.flushStreams_();
-        this.trigger('done');
-      };
-    };
-
-    _ElementaryStream.prototype = new stream();
-    var m2ts = {
-      PAT_PID: 0x0000,
-      MP2T_PACKET_LENGTH: MP2T_PACKET_LENGTH$1,
-      TransportPacketStream: _TransportPacketStream,
-      TransportParseStream: _TransportParseStream,
-      ElementaryStream: _ElementaryStream,
-      TimestampRolloverStream: TimestampRolloverStream,
-      CaptionStream: captionStream.CaptionStream,
-      Cea608Stream: captionStream.Cea608Stream,
-      Cea708Stream: captionStream.Cea708Stream,
-      MetadataStream: metadataStream
-    };
-
-    for (var type in streamTypes) {
-      if (streamTypes.hasOwnProperty(type)) {
-        m2ts[type] = streamTypes[type];
-      }
+    function createTimeRanges(...args) {
+        const context = videojs.time || videojs;
+        const fn = context.createTimeRanges || context.createTimeRanges;
+        return fn.apply(context, args);
     }
 
-    var m2ts_1 = m2ts;
-    var ONE_SECOND_IN_TS$2 = clock.ONE_SECOND_IN_TS;
-
-    var _AdtsStream;
-
-    var ADTS_SAMPLING_FREQUENCIES$1 = [96000, 88200, 64000, 48000, 44100, 32000, 24000, 22050, 16000, 12000, 11025, 8000, 7350];
-    /*
-     * Accepts a ElementaryStream and emits data events with parsed
-     * AAC Audio Frames of the individual packets. Input audio in ADTS
-     * format is unpacked and re-emitted as AAC frames.
+    /**
+     * ranges
+     *
+     * Utilities for working with TimeRanges.
      *
-     * @see http://wiki.multimedia.cx/index.php?title=ADTS
-     * @see http://wiki.multimedia.cx/?title=Understanding_AAC
      */
 
-    _AdtsStream = function AdtsStream(handlePartialSegments) {
-      var buffer,
-          frameNum = 0;
+    const TIME_FUDGE_FACTOR = 1 / 30; // Comparisons between time values such as current time and the end of the buffered range
+    // can be misleading because of precision differences or when the current media has poorly
+    // aligned audio and video, which can cause values to be slightly off from what you would
+    // expect. This value is what we consider to be safe to use in such comparisons to account
+    // for these scenarios.
 
-      _AdtsStream.prototype.init.call(this);
+    const SAFE_TIME_DELTA = TIME_FUDGE_FACTOR * 3;
+    const filterRanges = function (timeRanges, predicate) {
+        const results = [];
+        let i;
+        if (timeRanges && timeRanges.length) {
+            // Search for ranges that match the predicate
+            for (i = 0; i < timeRanges.length; i++) {
+                if (predicate(timeRanges.start(i), timeRanges.end(i))) {
+                    results.push([timeRanges.start(i), timeRanges.end(i)]);
+                }
+            }
+        }
+        return createTimeRanges(results);
+    };
+    /**
+     * Attempts to find the buffered TimeRange that contains the specified
+     * time.
+     *
+     * @param {TimeRanges} buffered - the TimeRanges object to query
+     * @param {number} time  - the time to filter on.
+     * @return {TimeRanges} a new TimeRanges object
+     */
 
-      this.skipWarn_ = function (start, end) {
-        this.trigger('log', {
-          level: 'warn',
-          message: "adts skiping bytes " + start + " to " + end + " in frame " + frameNum + " outside syncword"
+    const findRange = function (buffered, time) {
+        return filterRanges(buffered, function (start, end) {
+            return start - SAFE_TIME_DELTA <= time && end + SAFE_TIME_DELTA >= time;
         });
-      };
-
-      this.push = function (packet) {
-        var i = 0,
-            frameLength,
-            protectionSkipBytes,
-            oldBuffer,
-            sampleCount,
-            adtsFrameDuration;
-
-        if (!handlePartialSegments) {
-          frameNum = 0;
-        }
-
-        if (packet.type !== 'audio') {
-          // ignore non-audio data
-          return;
-        } // Prepend any data in the buffer to the input data so that we can parse
-        // aac frames the cross a PES packet boundary
-
-
-        if (buffer && buffer.length) {
-          oldBuffer = buffer;
-          buffer = new Uint8Array(oldBuffer.byteLength + packet.data.byteLength);
-          buffer.set(oldBuffer);
-          buffer.set(packet.data, oldBuffer.byteLength);
-        } else {
-          buffer = packet.data;
-        } // unpack any ADTS frames which have been fully received
-        // for details on the ADTS header, see http://wiki.multimedia.cx/index.php?title=ADTS
-
-
-        var skip; // We use i + 7 here because we want to be able to parse the entire header.
-        // If we don't have enough bytes to do that, then we definitely won't have a full frame.
-
-        while (i + 7 < buffer.length) {
-          // Look for the start of an ADTS header..
-          if (buffer[i] !== 0xFF || (buffer[i + 1] & 0xF6) !== 0xF0) {
-            if (typeof skip !== 'number') {
-              skip = i;
-            } // If a valid header was not found,  jump one forward and attempt to
-            // find a valid ADTS header starting at the next byte
-
-
-            i++;
-            continue;
-          }
-
-          if (typeof skip === 'number') {
-            this.skipWarn_(skip, i);
-            skip = null;
-          } // The protection skip bit tells us if we have 2 bytes of CRC data at the
-          // end of the ADTS header
-
-
-          protectionSkipBytes = (~buffer[i + 1] & 0x01) * 2; // Frame length is a 13 bit integer starting 16 bits from the
-          // end of the sync sequence
-          // NOTE: frame length includes the size of the header
-
-          frameLength = (buffer[i + 3] & 0x03) << 11 | buffer[i + 4] << 3 | (buffer[i + 5] & 0xe0) >> 5;
-          sampleCount = ((buffer[i + 6] & 0x03) + 1) * 1024;
-          adtsFrameDuration = sampleCount * ONE_SECOND_IN_TS$2 / ADTS_SAMPLING_FREQUENCIES$1[(buffer[i + 2] & 0x3c) >>> 2]; // If we don't have enough data to actually finish this ADTS frame,
-          // then we have to wait for more data
-
-          if (buffer.byteLength - i < frameLength) {
-            break;
-          } // Otherwise, deliver the complete AAC frame
-
-
-          this.trigger('data', {
-            pts: packet.pts + frameNum * adtsFrameDuration,
-            dts: packet.dts + frameNum * adtsFrameDuration,
-            sampleCount: sampleCount,
-            audioobjecttype: (buffer[i + 2] >>> 6 & 0x03) + 1,
-            channelcount: (buffer[i + 2] & 1) << 2 | (buffer[i + 3] & 0xc0) >>> 6,
-            samplerate: ADTS_SAMPLING_FREQUENCIES$1[(buffer[i + 2] & 0x3c) >>> 2],
-            samplingfrequencyindex: (buffer[i + 2] & 0x3c) >>> 2,
-            // assume ISO/IEC 14496-12 AudioSampleEntry default of 16
-            samplesize: 16,
-            // data is the frame without it's header
-            data: buffer.subarray(i + 7 + protectionSkipBytes, i + frameLength)
-          });
-          frameNum++;
-          i += frameLength;
-        }
-
-        if (typeof skip === 'number') {
-          this.skipWarn_(skip, i);
-          skip = null;
-        } // remove processed bytes from the buffer.
-
-
-        buffer = buffer.subarray(i);
-      };
-
-      this.flush = function () {
-        frameNum = 0;
-        this.trigger('done');
-      };
-
-      this.reset = function () {
-        buffer = void 0;
-        this.trigger('reset');
-      };
-
-      this.endTimeline = function () {
-        buffer = void 0;
-        this.trigger('endedtimeline');
-      };
     };
-
-    _AdtsStream.prototype = new stream();
-    var adts = _AdtsStream;
     /**
-     * mux.js
+     * Returns the TimeRanges that begin later than the specified time.
      *
-     * Copyright (c) Brightcove
-     * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE
+     * @param {TimeRanges} timeRanges - the TimeRanges object to query
+     * @param {number} time - the time to filter on.
+     * @return {TimeRanges} a new TimeRanges object.
      */
 
-    var ExpGolomb;
+    const findNextRange = function (timeRanges, time) {
+        return filterRanges(timeRanges, function (start) {
+            return start - TIME_FUDGE_FACTOR >= time;
+        });
+    };
     /**
-     * Parser for exponential Golomb codes, a variable-bitwidth number encoding
-     * scheme used by h264.
+     * Returns gaps within a list of TimeRanges
+     *
+     * @param {TimeRanges} buffered - the TimeRanges object
+     * @return {TimeRanges} a TimeRanges object of gaps
      */
 
-    ExpGolomb = function ExpGolomb(workingData) {
-      var // the number of bytes left to examine in workingData
-      workingBytesAvailable = workingData.byteLength,
-          // the current word being examined
-      workingWord = 0,
-          // :uint
-      // the number of bits left to examine in the current word
-      workingBitsAvailable = 0; // :uint;
-      // ():uint
-
-      this.length = function () {
-        return 8 * workingBytesAvailable;
-      }; // ():uint
-
-
-      this.bitsAvailable = function () {
-        return 8 * workingBytesAvailable + workingBitsAvailable;
-      }; // ():void
-
-
-      this.loadWord = function () {
-        var position = workingData.byteLength - workingBytesAvailable,
-            workingBytes = new Uint8Array(4),
-            availableBytes = Math.min(4, workingBytesAvailable);
-
-        if (availableBytes === 0) {
-          throw new Error('no bytes available');
+    const findGaps = function (buffered) {
+        if (buffered.length < 2) {
+            return createTimeRanges();
         }
+        const ranges = [];
+        for (let i = 1; i < buffered.length; i++) {
+            const start = buffered.end(i - 1);
+            const end = buffered.start(i);
+            ranges.push([start, end]);
+        }
+        return createTimeRanges(ranges);
+    };
+    /**
+     * Calculate the intersection of two TimeRanges
+     *
+     * @param {TimeRanges} bufferA
+     * @param {TimeRanges} bufferB
+     * @return {TimeRanges} The interesection of `bufferA` with `bufferB`
+     */
 
-        workingBytes.set(workingData.subarray(position, position + availableBytes));
-        workingWord = new DataView(workingBytes.buffer).getUint32(0); // track the amount of workingData that has been processed
+    const bufferIntersection = function (bufferA, bufferB) {
+        let start = null;
+        let end = null;
+        let arity = 0;
+        const extents = [];
+        const ranges = [];
+        if (!bufferA || !bufferA.length || !bufferB || !bufferB.length) {
+            return createTimeRanges();
+        } // Handle the case where we have both buffers and create an
+        // intersection of the two
 
-        workingBitsAvailable = availableBytes * 8;
-        workingBytesAvailable -= availableBytes;
-      }; // (count:int):void
+        let count = bufferA.length; // A) Gather up all start and end times
 
+        while (count--) {
+            extents.push({
+                time: bufferA.start(count),
+                type: 'start'
+            });
+            extents.push({
+                time: bufferA.end(count),
+                type: 'end'
+            });
+        }
+        count = bufferB.length;
+        while (count--) {
+            extents.push({
+                time: bufferB.start(count),
+                type: 'start'
+            });
+            extents.push({
+                time: bufferB.end(count),
+                type: 'end'
+            });
+        } // B) Sort them by time
 
-      this.skipBits = function (count) {
-        var skipBytes; // :int
+        extents.sort(function (a, b) {
+            return a.time - b.time;
+        }); // C) Go along one by one incrementing arity for start and decrementing
+        //    arity for ends
 
-        if (workingBitsAvailable > count) {
-          workingWord <<= count;
-          workingBitsAvailable -= count;
+        for (count = 0; count < extents.length; count++) {
+            if (extents[count].type === 'start') {
+                arity++; // D) If arity is ever incremented to 2 we are entering an
+                //    overlapping range
+
+                if (arity === 2) {
+                    start = extents[count].time;
+                }
+            } else if (extents[count].type === 'end') {
+                arity--; // E) If arity is ever decremented to 1 we leaving an
+                //    overlapping range
+
+                if (arity === 1) {
+                    end = extents[count].time;
+                }
+            } // F) Record overlapping ranges
+
+            if (start !== null && end !== null) {
+                ranges.push([start, end]);
+                start = null;
+                end = null;
+            }
+        }
+        return createTimeRanges(ranges);
+    };
+    /**
+     * Gets a human readable string for a TimeRange
+     *
+     * @param {TimeRange} range
+     * @return {string} a human readable string
+     */
+
+    const printableRange = range => {
+        const strArr = [];
+        if (!range || !range.length) {
+            return '';
+        }
+        for (let i = 0; i < range.length; i++) {
+            strArr.push(range.start(i) + ' => ' + range.end(i));
+        }
+        return strArr.join(', ');
+    };
+    /**
+     * Calculates the amount of time left in seconds until the player hits the end of the
+     * buffer and causes a rebuffer
+     *
+     * @param {TimeRange} buffered
+     *        The state of the buffer
+     * @param {Numnber} currentTime
+     *        The current time of the player
+     * @param {number} playbackRate
+     *        The current playback rate of the player. Defaults to 1.
+     * @return {number}
+     *         Time until the player has to start rebuffering in seconds.
+     * @function timeUntilRebuffer
+     */
+
+    const timeUntilRebuffer = function (buffered, currentTime, playbackRate = 1) {
+        const bufferedEnd = buffered.length ? buffered.end(buffered.length - 1) : 0;
+        return (bufferedEnd - currentTime) / playbackRate;
+    };
+    /**
+     * Converts a TimeRanges object into an array representation
+     *
+     * @param {TimeRanges} timeRanges
+     * @return {Array}
+     */
+
+    const timeRangesToArray = timeRanges => {
+        const timeRangesList = [];
+        for (let i = 0; i < timeRanges.length; i++) {
+            timeRangesList.push({
+                start: timeRanges.start(i),
+                end: timeRanges.end(i)
+            });
+        }
+        return timeRangesList;
+    };
+    /**
+     * Determines if two time range objects are different.
+     *
+     * @param {TimeRange} a
+     *        the first time range object to check
+     *
+     * @param {TimeRange} b
+     *        the second time range object to check
+     *
+     * @return {Boolean}
+     *         Whether the time range objects differ
+     */
+
+    const isRangeDifferent = function (a, b) {
+        // same object
+        if (a === b) {
+            return false;
+        } // one or the other is undefined
+
+        if (!a && b || !b && a) {
+            return true;
+        } // length is different
+
+        if (a.length !== b.length) {
+            return true;
+        } // see if any start/end pair is different
+
+        for (let i = 0; i < a.length; i++) {
+            if (a.start(i) !== b.start(i) || a.end(i) !== b.end(i)) {
+                return true;
+            }
+        } // if the length and every pair is the same
+        // this is the same time range
+
+        return false;
+    };
+    const lastBufferedEnd = function (a) {
+        if (!a || !a.length || !a.end) {
+            return;
+        }
+        return a.end(a.length - 1);
+    };
+    /**
+     * A utility function to add up the amount of time in a timeRange
+     * after a specified startTime.
+     * ie:[[0, 10], [20, 40], [50, 60]] with a startTime 0
+     *     would return 40 as there are 40s seconds after 0 in the timeRange
+     *
+     * @param {TimeRange} range
+     *        The range to check against
+     * @param {number} startTime
+     *        The time in the time range that you should start counting from
+     *
+     * @return {number}
+     *          The number of seconds in the buffer passed the specified time.
+     */
+
+    const timeAheadOf = function (range, startTime) {
+        let time = 0;
+        if (!range || !range.length) {
+            return time;
+        }
+        for (let i = 0; i < range.length; i++) {
+            const start = range.start(i);
+            const end = range.end(i); // startTime is after this range entirely
+
+            if (startTime > end) {
+                continue;
+            } // startTime is within this range
+
+            if (startTime > start && startTime <= end) {
+                time += end - startTime;
+                continue;
+            } // startTime is before this range.
+
+            time += end - start;
+        }
+        return time;
+    };
+
+    /**
+     * @file playlist.js
+     *
+     * Playlist related utilities.
+     */
+    /**
+     * Get the duration of a segment, with special cases for
+     * llhls segments that do not have a duration yet.
+     *
+     * @param {Object} playlist
+     *        the playlist that the segment belongs to.
+     * @param {Object} segment
+     *        the segment to get a duration for.
+     *
+     * @return {number}
+     *          the segment duration
+     */
+
+    const segmentDurationWithParts = (playlist, segment) => {
+        // if this isn't a preload segment
+        // then we will have a segment duration that is accurate.
+        if (!segment.preload) {
+            return segment.duration;
+        } // otherwise we have to add up parts and preload hints
+        // to get an up to date duration.
+
+        let result = 0;
+        (segment.parts || []).forEach(function (p) {
+            result += p.duration;
+        }); // for preload hints we have to use partTargetDuration
+        // as they won't even have a duration yet.
+
+        (segment.preloadHints || []).forEach(function (p) {
+            if (p.type === 'PART') {
+                result += playlist.partTargetDuration;
+            }
+        });
+        return result;
+    };
+    /**
+     * A function to get a combined list of parts and segments with durations
+     * and indexes.
+     *
+     * @param {Playlist} playlist the playlist to get the list for.
+     *
+     * @return {Array} The part/segment list.
+     */
+
+    const getPartsAndSegments = playlist => (playlist.segments || []).reduce((acc, segment, si) => {
+        if (segment.parts) {
+            segment.parts.forEach(function (part, pi) {
+                acc.push({
+                    duration: part.duration,
+                    segmentIndex: si,
+                    partIndex: pi,
+                    part,
+                    segment
+                });
+            });
         } else {
-          count -= workingBitsAvailable;
-          skipBytes = Math.floor(count / 8);
-          count -= skipBytes * 8;
-          workingBytesAvailable -= skipBytes;
-          this.loadWord();
-          workingWord <<= count;
-          workingBitsAvailable -= count;
+            acc.push({
+                duration: segment.duration,
+                segmentIndex: si,
+                partIndex: null,
+                segment,
+                part: null
+            });
         }
-      }; // (size:int):uint
-
-
-      this.readBits = function (size) {
-        var bits = Math.min(workingBitsAvailable, size),
-            // :uint
-        valu = workingWord >>> 32 - bits; // :uint
-        // if size > 31, handle error
-
-        workingBitsAvailable -= bits;
-
-        if (workingBitsAvailable > 0) {
-          workingWord <<= bits;
-        } else if (workingBytesAvailable > 0) {
-          this.loadWord();
-        }
-
-        bits = size - bits;
-
-        if (bits > 0) {
-          return valu << bits | this.readBits(bits);
-        }
-
-        return valu;
-      }; // ():uint
-
-
-      this.skipLeadingZeros = function () {
-        var leadingZeroCount; // :uint
-
-        for (leadingZeroCount = 0; leadingZeroCount < workingBitsAvailable; ++leadingZeroCount) {
-          if ((workingWord & 0x80000000 >>> leadingZeroCount) !== 0) {
-            // the first bit of working word is 1
-            workingWord <<= leadingZeroCount;
-            workingBitsAvailable -= leadingZeroCount;
-            return leadingZeroCount;
-          }
-        } // we exhausted workingWord and still have not found a 1
-
-
-        this.loadWord();
-        return leadingZeroCount + this.skipLeadingZeros();
-      }; // ():void
-
-
-      this.skipUnsignedExpGolomb = function () {
-        this.skipBits(1 + this.skipLeadingZeros());
-      }; // ():void
-
-
-      this.skipExpGolomb = function () {
-        this.skipBits(1 + this.skipLeadingZeros());
-      }; // ():uint
-
-
-      this.readUnsignedExpGolomb = function () {
-        var clz = this.skipLeadingZeros(); // :uint
-
-        return this.readBits(clz + 1) - 1;
-      }; // ():int
-
-
-      this.readExpGolomb = function () {
-        var valu = this.readUnsignedExpGolomb(); // :int
-
-        if (0x01 & valu) {
-          // the number is odd if the low order bit is set
-          return 1 + valu >>> 1; // add 1 to make it even, and divide by 2
-        }
-
-        return -1 * (valu >>> 1); // divide by two then make it negative
-      }; // Some convenience functions
-      // :Boolean
-
-
-      this.readBoolean = function () {
-        return this.readBits(1) === 1;
-      }; // ():int
-
-
-      this.readUnsignedByte = function () {
-        return this.readBits(8);
-      };
-
-      this.loadWord();
+        return acc;
+    }, []);
+    const getLastParts = media => {
+        const lastSegment = media.segments && media.segments.length && media.segments[media.segments.length - 1];
+        return lastSegment && lastSegment.parts || [];
     };
-
-    var expGolomb = ExpGolomb;
-
-    var _H264Stream, _NalByteStream;
-
-    var PROFILES_WITH_OPTIONAL_SPS_DATA;
-    /**
-     * Accepts a NAL unit byte stream and unpacks the embedded NAL units.
-     */
-
-    _NalByteStream = function NalByteStream() {
-      var syncPoint = 0,
-          i,
-          buffer;
-
-      _NalByteStream.prototype.init.call(this);
-      /*
-       * Scans a byte stream and triggers a data event with the NAL units found.
-       * @param {Object} data Event received from H264Stream
-       * @param {Uint8Array} data.data The h264 byte stream to be scanned
-       *
-       * @see H264Stream.push
-       */
-
-
-      this.push = function (data) {
-        var swapBuffer;
-
-        if (!buffer) {
-          buffer = data.data;
-        } else {
-          swapBuffer = new Uint8Array(buffer.byteLength + data.data.byteLength);
-          swapBuffer.set(buffer);
-          swapBuffer.set(data.data, buffer.byteLength);
-          buffer = swapBuffer;
+    const getKnownPartCount = ({
+                                   preloadSegment
+                               }) => {
+        if (!preloadSegment) {
+            return;
         }
-
-        var len = buffer.byteLength; // Rec. ITU-T H.264, Annex B
-        // scan for NAL unit boundaries
-        // a match looks like this:
-        // 0 0 1 .. NAL .. 0 0 1
-        // ^ sync point        ^ i
-        // or this:
-        // 0 0 1 .. NAL .. 0 0 0
-        // ^ sync point        ^ i
-        // advance the sync point to a NAL start, if necessary
-
-        for (; syncPoint < len - 3; syncPoint++) {
-          if (buffer[syncPoint + 2] === 1) {
-            // the sync point is properly aligned
-            i = syncPoint + 5;
-            break;
-          }
-        }
-
-        while (i < len) {
-          // look at the current byte to determine if we've hit the end of
-          // a NAL unit boundary
-          switch (buffer[i]) {
-            case 0:
-              // skip past non-sync sequences
-              if (buffer[i - 1] !== 0) {
-                i += 2;
-                break;
-              } else if (buffer[i - 2] !== 0) {
-                i++;
-                break;
-              } // deliver the NAL unit if it isn't empty
-
-
-              if (syncPoint + 3 !== i - 2) {
-                this.trigger('data', buffer.subarray(syncPoint + 3, i - 2));
-              } // drop trailing zeroes
-
-
-              do {
-                i++;
-              } while (buffer[i] !== 1 && i < len);
-
-              syncPoint = i - 2;
-              i += 3;
-              break;
-
-            case 1:
-              // skip past non-sync sequences
-              if (buffer[i - 1] !== 0 || buffer[i - 2] !== 0) {
-                i += 3;
-                break;
-              } // deliver the NAL unit
-
-
-              this.trigger('data', buffer.subarray(syncPoint + 3, i - 2));
-              syncPoint = i - 2;
-              i += 3;
-              break;
-
-            default:
-              // the current byte isn't a one or zero, so it cannot be part
-              // of a sync sequence
-              i += 3;
-              break;
-          }
-        } // filter out the NAL units that were delivered
-
-
-        buffer = buffer.subarray(syncPoint);
-        i -= syncPoint;
-        syncPoint = 0;
-      };
-
-      this.reset = function () {
-        buffer = null;
-        syncPoint = 0;
-        this.trigger('reset');
-      };
-
-      this.flush = function () {
-        // deliver the last buffered NAL unit
-        if (buffer && buffer.byteLength > 3) {
-          this.trigger('data', buffer.subarray(syncPoint + 3));
-        } // reset the stream state
-
-
-        buffer = null;
-        syncPoint = 0;
-        this.trigger('done');
-      };
-
-      this.endTimeline = function () {
-        this.flush();
-        this.trigger('endedtimeline');
-      };
-    };
-
-    _NalByteStream.prototype = new stream(); // values of profile_idc that indicate additional fields are included in the SPS
-    // see Recommendation ITU-T H.264 (4/2013),
-    // 7.3.2.1.1 Sequence parameter set data syntax
-
-    PROFILES_WITH_OPTIONAL_SPS_DATA = {
-      100: true,
-      110: true,
-      122: true,
-      244: true,
-      44: true,
-      83: true,
-      86: true,
-      118: true,
-      128: true,
-      // TODO: the three profiles below don't
-      // appear to have sps data in the specificiation anymore?
-      138: true,
-      139: true,
-      134: true
+        const {
+            parts,
+            preloadHints
+        } = preloadSegment;
+        let partCount = (preloadHints || []).reduce((count, hint) => count + (hint.type === 'PART' ? 1 : 0), 0);
+        partCount += parts && parts.length ? parts.length : 0;
+        return partCount;
     };
     /**
-     * Accepts input from a ElementaryStream and produces H.264 NAL unit data
-     * events.
+     * Get the number of seconds to delay from the end of a
+     * live playlist.
+     *
+     * @param {Playlist} main the main playlist
+     * @param {Playlist} media the media playlist
+     * @return {number} the hold back in seconds.
      */
 
-    _H264Stream = function H264Stream() {
-      var nalByteStream = new _NalByteStream(),
-          self,
-          trackId,
-          currentPts,
-          currentDts,
-          discardEmulationPreventionBytes,
-          readSequenceParameterSet,
-          skipScalingList;
+    const liveEdgeDelay = (main, media) => {
+        if (media.endList) {
+            return 0;
+        } // dash suggestedPresentationDelay trumps everything
 
-      _H264Stream.prototype.init.call(this);
-
-      self = this;
-      /*
-       * Pushes a packet from a stream onto the NalByteStream
-       *
-       * @param {Object} packet - A packet received from a stream
-       * @param {Uint8Array} packet.data - The raw bytes of the packet
-       * @param {Number} packet.dts - Decode timestamp of the packet
-       * @param {Number} packet.pts - Presentation timestamp of the packet
-       * @param {Number} packet.trackId - The id of the h264 track this packet came from
-       * @param {('video'|'audio')} packet.type - The type of packet
-       *
-       */
-
-      this.push = function (packet) {
-        if (packet.type !== 'video') {
-          return;
+        if (main && main.suggestedPresentationDelay) {
+            return main.suggestedPresentationDelay;
         }
+        const hasParts = getLastParts(media).length > 0; // look for "part" delays from ll-hls first
 
-        trackId = packet.trackId;
-        currentPts = packet.pts;
-        currentDts = packet.dts;
-        nalByteStream.push(packet);
-      };
-      /*
-       * Identify NAL unit types and pass on the NALU, trackId, presentation and decode timestamps
-       * for the NALUs to the next stream component.
-       * Also, preprocess caption and sequence parameter NALUs.
-       *
-       * @param {Uint8Array} data - A NAL unit identified by `NalByteStream.push`
-       * @see NalByteStream.push
-       */
+        if (hasParts && media.serverControl && media.serverControl.partHoldBack) {
+            return media.serverControl.partHoldBack;
+        } else if (hasParts && media.partTargetDuration) {
+            return media.partTargetDuration * 3; // finally look for full segment delays
+        } else if (media.serverControl && media.serverControl.holdBack) {
+            return media.serverControl.holdBack;
+        } else if (media.targetDuration) {
+            return media.targetDuration * 3;
+        }
+        return 0;
+    };
+    /**
+     * walk backward until we find a duration we can use
+     * or return a failure
+     *
+     * @param {Playlist} playlist the playlist to walk through
+     * @param {Number} endSequence the mediaSequence to stop walking on
+     */
 
+    const backwardDuration = function (playlist, endSequence) {
+        let result = 0;
+        let i = endSequence - playlist.mediaSequence; // if a start time is available for segment immediately following
+        // the interval, use it
 
-      nalByteStream.on('data', function (data) {
-        var event = {
-          trackId: trackId,
-          pts: currentPts,
-          dts: currentDts,
-          data: data,
-          nalUnitTypeCode: data[0] & 0x1f
+        let segment = playlist.segments[i]; // Walk backward until we find the latest segment with timeline
+        // information that is earlier than endSequence
+
+        if (segment) {
+            if (typeof segment.start !== 'undefined') {
+                return {
+                    result: segment.start,
+                    precise: true
+                };
+            }
+            if (typeof segment.end !== 'undefined') {
+                return {
+                    result: segment.end - segment.duration,
+                    precise: true
+                };
+            }
+        }
+        while (i--) {
+            segment = playlist.segments[i];
+            if (typeof segment.end !== 'undefined') {
+                return {
+                    result: result + segment.end,
+                    precise: true
+                };
+            }
+            result += segmentDurationWithParts(playlist, segment);
+            if (typeof segment.start !== 'undefined') {
+                return {
+                    result: result + segment.start,
+                    precise: true
+                };
+            }
+        }
+        return {
+            result,
+            precise: false
         };
+    };
+    /**
+     * walk forward until we find a duration we can use
+     * or return a failure
+     *
+     * @param {Playlist} playlist the playlist to walk through
+     * @param {number} endSequence the mediaSequence to stop walking on
+     */
 
-        switch (event.nalUnitTypeCode) {
-          case 0x05:
-            event.nalUnitType = 'slice_layer_without_partitioning_rbsp_idr';
-            break;
+    const forwardDuration = function (playlist, endSequence) {
+        let result = 0;
+        let segment;
+        let i = endSequence - playlist.mediaSequence; // Walk forward until we find the earliest segment with timeline
+        // information
 
-          case 0x06:
-            event.nalUnitType = 'sei_rbsp';
-            event.escapedRBSP = discardEmulationPreventionBytes(data.subarray(1));
-            break;
-
-          case 0x07:
-            event.nalUnitType = 'seq_parameter_set_rbsp';
-            event.escapedRBSP = discardEmulationPreventionBytes(data.subarray(1));
-            event.config = readSequenceParameterSet(event.escapedRBSP);
-            break;
-
-          case 0x08:
-            event.nalUnitType = 'pic_parameter_set_rbsp';
-            break;
-
-          case 0x09:
-            event.nalUnitType = 'access_unit_delimiter_rbsp';
-            break;
-        } // This triggers data on the H264Stream
-
-
-        self.trigger('data', event);
-      });
-      nalByteStream.on('done', function () {
-        self.trigger('done');
-      });
-      nalByteStream.on('partialdone', function () {
-        self.trigger('partialdone');
-      });
-      nalByteStream.on('reset', function () {
-        self.trigger('reset');
-      });
-      nalByteStream.on('endedtimeline', function () {
-        self.trigger('endedtimeline');
-      });
-
-      this.flush = function () {
-        nalByteStream.flush();
-      };
-
-      this.partialFlush = function () {
-        nalByteStream.partialFlush();
-      };
-
-      this.reset = function () {
-        nalByteStream.reset();
-      };
-
-      this.endTimeline = function () {
-        nalByteStream.endTimeline();
-      };
-      /**
-       * Advance the ExpGolomb decoder past a scaling list. The scaling
-       * list is optionally transmitted as part of a sequence parameter
-       * set and is not relevant to transmuxing.
-       * @param count {number} the number of entries in this scaling list
-       * @param expGolombDecoder {object} an ExpGolomb pointed to the
-       * start of a scaling list
-       * @see Recommendation ITU-T H.264, Section 7.3.2.1.1.1
-       */
-
-
-      skipScalingList = function skipScalingList(count, expGolombDecoder) {
-        var lastScale = 8,
-            nextScale = 8,
-            j,
-            deltaScale;
-
-        for (j = 0; j < count; j++) {
-          if (nextScale !== 0) {
-            deltaScale = expGolombDecoder.readExpGolomb();
-            nextScale = (lastScale + deltaScale + 256) % 256;
-          }
-
-          lastScale = nextScale === 0 ? lastScale : nextScale;
-        }
-      };
-      /**
-       * Expunge any "Emulation Prevention" bytes from a "Raw Byte
-       * Sequence Payload"
-       * @param data {Uint8Array} the bytes of a RBSP from a NAL
-       * unit
-       * @return {Uint8Array} the RBSP without any Emulation
-       * Prevention Bytes
-       */
-
-
-      discardEmulationPreventionBytes = function discardEmulationPreventionBytes(data) {
-        var length = data.byteLength,
-            emulationPreventionBytesPositions = [],
-            i = 1,
-            newLength,
-            newData; // Find all `Emulation Prevention Bytes`
-
-        while (i < length - 2) {
-          if (data[i] === 0 && data[i + 1] === 0 && data[i + 2] === 0x03) {
-            emulationPreventionBytesPositions.push(i + 2);
-            i += 2;
-          } else {
-            i++;
-          }
-        } // If no Emulation Prevention Bytes were found just return the original
-        // array
-
-
-        if (emulationPreventionBytesPositions.length === 0) {
-          return data;
-        } // Create a new array to hold the NAL unit data
-
-
-        newLength = length - emulationPreventionBytesPositions.length;
-        newData = new Uint8Array(newLength);
-        var sourceIndex = 0;
-
-        for (i = 0; i < newLength; sourceIndex++, i++) {
-          if (sourceIndex === emulationPreventionBytesPositions[0]) {
-            // Skip this byte
-            sourceIndex++; // Remove this position index
-
-            emulationPreventionBytesPositions.shift();
-          }
-
-          newData[i] = data[sourceIndex];
-        }
-
-        return newData;
-      };
-      /**
-       * Read a sequence parameter set and return some interesting video
-       * properties. A sequence parameter set is the H264 metadata that
-       * describes the properties of upcoming video frames.
-       * @param data {Uint8Array} the bytes of a sequence parameter set
-       * @return {object} an object with configuration parsed from the
-       * sequence parameter set, including the dimensions of the
-       * associated video frames.
-       */
-
-
-      readSequenceParameterSet = function readSequenceParameterSet(data) {
-        var frameCropLeftOffset = 0,
-            frameCropRightOffset = 0,
-            frameCropTopOffset = 0,
-            frameCropBottomOffset = 0,
-            expGolombDecoder,
-            profileIdc,
-            levelIdc,
-            profileCompatibility,
-            chromaFormatIdc,
-            picOrderCntType,
-            numRefFramesInPicOrderCntCycle,
-            picWidthInMbsMinus1,
-            picHeightInMapUnitsMinus1,
-            frameMbsOnlyFlag,
-            scalingListCount,
-            sarRatio = [1, 1],
-            aspectRatioIdc,
-            i;
-        expGolombDecoder = new expGolomb(data);
-        profileIdc = expGolombDecoder.readUnsignedByte(); // profile_idc
-
-        profileCompatibility = expGolombDecoder.readUnsignedByte(); // constraint_set[0-5]_flag
-
-        levelIdc = expGolombDecoder.readUnsignedByte(); // level_idc u(8)
-
-        expGolombDecoder.skipUnsignedExpGolomb(); // seq_parameter_set_id
-        // some profiles have more optional data we don't need
-
-        if (PROFILES_WITH_OPTIONAL_SPS_DATA[profileIdc]) {
-          chromaFormatIdc = expGolombDecoder.readUnsignedExpGolomb();
-
-          if (chromaFormatIdc === 3) {
-            expGolombDecoder.skipBits(1); // separate_colour_plane_flag
-          }
-
-          expGolombDecoder.skipUnsignedExpGolomb(); // bit_depth_luma_minus8
-
-          expGolombDecoder.skipUnsignedExpGolomb(); // bit_depth_chroma_minus8
-
-          expGolombDecoder.skipBits(1); // qpprime_y_zero_transform_bypass_flag
-
-          if (expGolombDecoder.readBoolean()) {
-            // seq_scaling_matrix_present_flag
-            scalingListCount = chromaFormatIdc !== 3 ? 8 : 12;
-
-            for (i = 0; i < scalingListCount; i++) {
-              if (expGolombDecoder.readBoolean()) {
-                // seq_scaling_list_present_flag[ i ]
-                if (i < 6) {
-                  skipScalingList(16, expGolombDecoder);
-                } else {
-                  skipScalingList(64, expGolombDecoder);
-                }
-              }
+        for (; i < playlist.segments.length; i++) {
+            segment = playlist.segments[i];
+            if (typeof segment.start !== 'undefined') {
+                return {
+                    result: segment.start - result,
+                    precise: true
+                };
             }
-          }
-        }
-
-        expGolombDecoder.skipUnsignedExpGolomb(); // log2_max_frame_num_minus4
-
-        picOrderCntType = expGolombDecoder.readUnsignedExpGolomb();
-
-        if (picOrderCntType === 0) {
-          expGolombDecoder.readUnsignedExpGolomb(); // log2_max_pic_order_cnt_lsb_minus4
-        } else if (picOrderCntType === 1) {
-          expGolombDecoder.skipBits(1); // delta_pic_order_always_zero_flag
-
-          expGolombDecoder.skipExpGolomb(); // offset_for_non_ref_pic
-
-          expGolombDecoder.skipExpGolomb(); // offset_for_top_to_bottom_field
-
-          numRefFramesInPicOrderCntCycle = expGolombDecoder.readUnsignedExpGolomb();
-
-          for (i = 0; i < numRefFramesInPicOrderCntCycle; i++) {
-            expGolombDecoder.skipExpGolomb(); // offset_for_ref_frame[ i ]
-          }
-        }
-
-        expGolombDecoder.skipUnsignedExpGolomb(); // max_num_ref_frames
-
-        expGolombDecoder.skipBits(1); // gaps_in_frame_num_value_allowed_flag
-
-        picWidthInMbsMinus1 = expGolombDecoder.readUnsignedExpGolomb();
-        picHeightInMapUnitsMinus1 = expGolombDecoder.readUnsignedExpGolomb();
-        frameMbsOnlyFlag = expGolombDecoder.readBits(1);
-
-        if (frameMbsOnlyFlag === 0) {
-          expGolombDecoder.skipBits(1); // mb_adaptive_frame_field_flag
-        }
-
-        expGolombDecoder.skipBits(1); // direct_8x8_inference_flag
-
-        if (expGolombDecoder.readBoolean()) {
-          // frame_cropping_flag
-          frameCropLeftOffset = expGolombDecoder.readUnsignedExpGolomb();
-          frameCropRightOffset = expGolombDecoder.readUnsignedExpGolomb();
-          frameCropTopOffset = expGolombDecoder.readUnsignedExpGolomb();
-          frameCropBottomOffset = expGolombDecoder.readUnsignedExpGolomb();
-        }
-
-        if (expGolombDecoder.readBoolean()) {
-          // vui_parameters_present_flag
-          if (expGolombDecoder.readBoolean()) {
-            // aspect_ratio_info_present_flag
-            aspectRatioIdc = expGolombDecoder.readUnsignedByte();
-
-            switch (aspectRatioIdc) {
-              case 1:
-                sarRatio = [1, 1];
-                break;
-
-              case 2:
-                sarRatio = [12, 11];
-                break;
-
-              case 3:
-                sarRatio = [10, 11];
-                break;
-
-              case 4:
-                sarRatio = [16, 11];
-                break;
-
-              case 5:
-                sarRatio = [40, 33];
-                break;
-
-              case 6:
-                sarRatio = [24, 11];
-                break;
-
-              case 7:
-                sarRatio = [20, 11];
-                break;
-
-              case 8:
-                sarRatio = [32, 11];
-                break;
-
-              case 9:
-                sarRatio = [80, 33];
-                break;
-
-              case 10:
-                sarRatio = [18, 11];
-                break;
-
-              case 11:
-                sarRatio = [15, 11];
-                break;
-
-              case 12:
-                sarRatio = [64, 33];
-                break;
-
-              case 13:
-                sarRatio = [160, 99];
-                break;
-
-              case 14:
-                sarRatio = [4, 3];
-                break;
-
-              case 15:
-                sarRatio = [3, 2];
-                break;
-
-              case 16:
-                sarRatio = [2, 1];
-                break;
-
-              case 255:
-                {
-                  sarRatio = [expGolombDecoder.readUnsignedByte() << 8 | expGolombDecoder.readUnsignedByte(), expGolombDecoder.readUnsignedByte() << 8 | expGolombDecoder.readUnsignedByte()];
-                  break;
-                }
+            result += segmentDurationWithParts(playlist, segment);
+            if (typeof segment.end !== 'undefined') {
+                return {
+                    result: segment.end - result,
+                    precise: true
+                };
             }
-
-            if (sarRatio) {
-              sarRatio[0] / sarRatio[1];
-            }
-          }
-        }
+        } // indicate we didn't find a useful duration estimate
 
         return {
-          profileIdc: profileIdc,
-          levelIdc: levelIdc,
-          profileCompatibility: profileCompatibility,
-          width: (picWidthInMbsMinus1 + 1) * 16 - frameCropLeftOffset * 2 - frameCropRightOffset * 2,
-          height: (2 - frameMbsOnlyFlag) * (picHeightInMapUnitsMinus1 + 1) * 16 - frameCropTopOffset * 2 - frameCropBottomOffset * 2,
-          // sar is sample aspect ratio
-          sarRatio: sarRatio
+            result: -1,
+            precise: false
         };
-      };
-    };
-
-    _H264Stream.prototype = new stream();
-    var h264 = {
-      H264Stream: _H264Stream,
-      NalByteStream: _NalByteStream
     };
     /**
-     * mux.js
+     * Calculate the media duration from the segments associated with a
+     * playlist. The duration of a subinterval of the available segments
+     * may be calculated by specifying an end index.
      *
-     * Copyright (c) Brightcove
-     * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE
+     * @param {Object} playlist a media playlist object
+     * @param {number=} endSequence an exclusive upper boundary
+     * for the playlist.  Defaults to playlist length.
+     * @param {number} expired the amount of time that has dropped
+     * off the front of the playlist in a live scenario
+     * @return {number} the duration between the first available segment
+     * and end index.
+     */
+
+    const intervalDuration = function (playlist, endSequence, expired) {
+        if (typeof endSequence === 'undefined') {
+            endSequence = playlist.mediaSequence + playlist.segments.length;
+        }
+        if (endSequence < playlist.mediaSequence) {
+            return 0;
+        } // do a backward walk to estimate the duration
+
+        const backward = backwardDuration(playlist, endSequence);
+        if (backward.precise) {
+            // if we were able to base our duration estimate on timing
+            // information provided directly from the Media Source, return
+            // it
+            return backward.result;
+        } // walk forward to see if a precise duration estimate can be made
+        // that way
+
+        const forward = forwardDuration(playlist, endSequence);
+        if (forward.precise) {
+            // we found a segment that has been buffered and so it's
+            // position is known precisely
+            return forward.result;
+        } // return the less-precise, playlist-based duration estimate
+
+        return backward.result + expired;
+    };
+    /**
+     * Calculates the duration of a playlist. If a start and end index
+     * are specified, the duration will be for the subset of the media
+     * timeline between those two indices. The total duration for live
+     * playlists is always Infinity.
      *
-     * Utilities to detect basic properties and metadata about Aac data.
+     * @param {Object} playlist a media playlist object
+     * @param {number=} endSequence an exclusive upper
+     * boundary for the playlist. Defaults to the playlist media
+     * sequence number plus its length.
+     * @param {number=} expired the amount of time that has
+     * dropped off the front of the playlist in a live scenario
+     * @return {number} the duration between the start index and end
+     * index.
      */
 
-    var ADTS_SAMPLING_FREQUENCIES = [96000, 88200, 64000, 48000, 44100, 32000, 24000, 22050, 16000, 12000, 11025, 8000, 7350];
-
-    var parseId3TagSize = function parseId3TagSize(header, byteIndex) {
-      var returnSize = header[byteIndex + 6] << 21 | header[byteIndex + 7] << 14 | header[byteIndex + 8] << 7 | header[byteIndex + 9],
-          flags = header[byteIndex + 5],
-          footerPresent = (flags & 16) >> 4; // if we get a negative returnSize clamp it to 0
-
-      returnSize = returnSize >= 0 ? returnSize : 0;
-
-      if (footerPresent) {
-        return returnSize + 20;
-      }
-
-      return returnSize + 10;
-    };
-
-    var getId3Offset = function getId3Offset(data, offset) {
-      if (data.length - offset < 10 || data[offset] !== 'I'.charCodeAt(0) || data[offset + 1] !== 'D'.charCodeAt(0) || data[offset + 2] !== '3'.charCodeAt(0)) {
-        return offset;
-      }
-
-      offset += parseId3TagSize(data, offset);
-      return getId3Offset(data, offset);
-    }; // TODO: use vhs-utils
-
-
-    var isLikelyAacData$1 = function isLikelyAacData(data) {
-      var offset = getId3Offset(data, 0);
-      return data.length >= offset + 2 && (data[offset] & 0xFF) === 0xFF && (data[offset + 1] & 0xF0) === 0xF0 && // verify that the 2 layer bits are 0, aka this
-      // is not mp3 data but aac data.
-      (data[offset + 1] & 0x16) === 0x10;
-    };
-
-    var parseSyncSafeInteger = function parseSyncSafeInteger(data) {
-      return data[0] << 21 | data[1] << 14 | data[2] << 7 | data[3];
-    }; // return a percent-encoded representation of the specified byte range
-    // @see http://en.wikipedia.org/wiki/Percent-encoding
-
-
-    var percentEncode = function percentEncode(bytes, start, end) {
-      var i,
-          result = '';
-
-      for (i = start; i < end; i++) {
-        result += '%' + ('00' + bytes[i].toString(16)).slice(-2);
-      }
-
-      return result;
-    }; // return the string representation of the specified byte range,
-    // interpreted as ISO-8859-1.
-
-
-    var parseIso88591 = function parseIso88591(bytes, start, end) {
-      return unescape(percentEncode(bytes, start, end)); // jshint ignore:line
-    };
-
-    var parseAdtsSize = function parseAdtsSize(header, byteIndex) {
-      var lowThree = (header[byteIndex + 5] & 0xE0) >> 5,
-          middle = header[byteIndex + 4] << 3,
-          highTwo = header[byteIndex + 3] & 0x3 << 11;
-      return highTwo | middle | lowThree;
-    };
-
-    var parseType$2 = function parseType(header, byteIndex) {
-      if (header[byteIndex] === 'I'.charCodeAt(0) && header[byteIndex + 1] === 'D'.charCodeAt(0) && header[byteIndex + 2] === '3'.charCodeAt(0)) {
-        return 'timed-metadata';
-      } else if (header[byteIndex] & 0xff === 0xff && (header[byteIndex + 1] & 0xf0) === 0xf0) {
-        return 'audio';
-      }
-
-      return null;
-    };
-
-    var parseSampleRate = function parseSampleRate(packet) {
-      var i = 0;
-
-      while (i + 5 < packet.length) {
-        if (packet[i] !== 0xFF || (packet[i + 1] & 0xF6) !== 0xF0) {
-          // If a valid header was not found,  jump one forward and attempt to
-          // find a valid ADTS header starting at the next byte
-          i++;
-          continue;
+    const duration = function (playlist, endSequence, expired) {
+        if (!playlist) {
+            return 0;
         }
+        if (typeof expired !== 'number') {
+            expired = 0;
+        } // if a slice of the total duration is not requested, use
+        // playlist-level duration indicators when they're present
 
-        return ADTS_SAMPLING_FREQUENCIES[(packet[i + 2] & 0x3c) >>> 2];
-      }
+        if (typeof endSequence === 'undefined') {
+            // if present, use the duration specified in the playlist
+            if (playlist.totalDuration) {
+                return playlist.totalDuration;
+            } // duration should be Infinity for live playlists
 
-      return null;
-    };
-
-    var parseAacTimestamp = function parseAacTimestamp(packet) {
-      var frameStart, frameSize, frame, frameHeader; // find the start of the first frame and the end of the tag
-
-      frameStart = 10;
-
-      if (packet[5] & 0x40) {
-        // advance the frame start past the extended header
-        frameStart += 4; // header size field
-
-        frameStart += parseSyncSafeInteger(packet.subarray(10, 14));
-      } // parse one or more ID3 frames
-      // http://id3.org/id3v2.3.0#ID3v2_frame_overview
-
-
-      do {
-        // determine the number of bytes in this frame
-        frameSize = parseSyncSafeInteger(packet.subarray(frameStart + 4, frameStart + 8));
-
-        if (frameSize < 1) {
-          return null;
-        }
-
-        frameHeader = String.fromCharCode(packet[frameStart], packet[frameStart + 1], packet[frameStart + 2], packet[frameStart + 3]);
-
-        if (frameHeader === 'PRIV') {
-          frame = packet.subarray(frameStart + 10, frameStart + frameSize + 10);
-
-          for (var i = 0; i < frame.byteLength; i++) {
-            if (frame[i] === 0) {
-              var owner = parseIso88591(frame, 0, i);
-
-              if (owner === 'com.apple.streaming.transportStreamTimestamp') {
-                var d = frame.subarray(i + 1);
-                var size = (d[3] & 0x01) << 30 | d[4] << 22 | d[5] << 14 | d[6] << 6 | d[7] >>> 2;
-                size *= 4;
-                size += d[7] & 0x03;
-                return size;
-              }
-
-              break;
+            if (!playlist.endList) {
+                return window.Infinity;
             }
-          }
-        }
+        } // calculate the total duration based on the segment durations
 
-        frameStart += 10; // advance past the frame header
-
-        frameStart += frameSize; // advance past the frame body
-      } while (frameStart < packet.byteLength);
-
-      return null;
-    };
-
-    var utils = {
-      isLikelyAacData: isLikelyAacData$1,
-      parseId3TagSize: parseId3TagSize,
-      parseAdtsSize: parseAdtsSize,
-      parseType: parseType$2,
-      parseSampleRate: parseSampleRate,
-      parseAacTimestamp: parseAacTimestamp
-    };
-
-    var _AacStream;
-    /**
-     * Splits an incoming stream of binary data into ADTS and ID3 Frames.
-     */
-
-
-    _AacStream = function AacStream() {
-      var everything = new Uint8Array(),
-          timeStamp = 0;
-
-      _AacStream.prototype.init.call(this);
-
-      this.setTimestamp = function (timestamp) {
-        timeStamp = timestamp;
-      };
-
-      this.push = function (bytes) {
-        var frameSize = 0,
-            byteIndex = 0,
-            bytesLeft,
-            chunk,
-            packet,
-            tempLength; // If there are bytes remaining from the last segment, prepend them to the
-        // bytes that were pushed in
-
-        if (everything.length) {
-          tempLength = everything.length;
-          everything = new Uint8Array(bytes.byteLength + tempLength);
-          everything.set(everything.subarray(0, tempLength));
-          everything.set(bytes, tempLength);
-        } else {
-          everything = bytes;
-        }
-
-        while (everything.length - byteIndex >= 3) {
-          if (everything[byteIndex] === 'I'.charCodeAt(0) && everything[byteIndex + 1] === 'D'.charCodeAt(0) && everything[byteIndex + 2] === '3'.charCodeAt(0)) {
-            // Exit early because we don't have enough to parse
-            // the ID3 tag header
-            if (everything.length - byteIndex < 10) {
-              break;
-            } // check framesize
-
-
-            frameSize = utils.parseId3TagSize(everything, byteIndex); // Exit early if we don't have enough in the buffer
-            // to emit a full packet
-            // Add to byteIndex to support multiple ID3 tags in sequence
-
-            if (byteIndex + frameSize > everything.length) {
-              break;
-            }
-
-            chunk = {
-              type: 'timed-metadata',
-              data: everything.subarray(byteIndex, byteIndex + frameSize)
-            };
-            this.trigger('data', chunk);
-            byteIndex += frameSize;
-            continue;
-          } else if ((everything[byteIndex] & 0xff) === 0xff && (everything[byteIndex + 1] & 0xf0) === 0xf0) {
-            // Exit early because we don't have enough to parse
-            // the ADTS frame header
-            if (everything.length - byteIndex < 7) {
-              break;
-            }
-
-            frameSize = utils.parseAdtsSize(everything, byteIndex); // Exit early if we don't have enough in the buffer
-            // to emit a full packet
-
-            if (byteIndex + frameSize > everything.length) {
-              break;
-            }
-
-            packet = {
-              type: 'audio',
-              data: everything.subarray(byteIndex, byteIndex + frameSize),
-              pts: timeStamp,
-              dts: timeStamp
-            };
-            this.trigger('data', packet);
-            byteIndex += frameSize;
-            continue;
-          }
-
-          byteIndex++;
-        }
-
-        bytesLeft = everything.length - byteIndex;
-
-        if (bytesLeft > 0) {
-          everything = everything.subarray(byteIndex);
-        } else {
-          everything = new Uint8Array();
-        }
-      };
-
-      this.reset = function () {
-        everything = new Uint8Array();
-        this.trigger('reset');
-      };
-
-      this.endTimeline = function () {
-        everything = new Uint8Array();
-        this.trigger('endedtimeline');
-      };
-    };
-
-    _AacStream.prototype = new stream();
-    var aac = _AacStream; // constants
-
-    var AUDIO_PROPERTIES = ['audioobjecttype', 'channelcount', 'samplerate', 'samplingfrequencyindex', 'samplesize'];
-    var audioProperties = AUDIO_PROPERTIES;
-    var VIDEO_PROPERTIES = ['width', 'height', 'profileIdc', 'levelIdc', 'profileCompatibility', 'sarRatio'];
-    var videoProperties = VIDEO_PROPERTIES;
-    var H264Stream = h264.H264Stream;
-    var isLikelyAacData = utils.isLikelyAacData;
-    var ONE_SECOND_IN_TS$1 = clock.ONE_SECOND_IN_TS; // object types
-
-    var _VideoSegmentStream, _AudioSegmentStream, _Transmuxer, _CoalesceStream;
-
-    var retriggerForStream = function retriggerForStream(key, event) {
-      event.stream = key;
-      this.trigger('log', event);
-    };
-
-    var addPipelineLogRetriggers = function addPipelineLogRetriggers(transmuxer, pipeline) {
-      var keys = Object.keys(pipeline);
-
-      for (var i = 0; i < keys.length; i++) {
-        var key = keys[i]; // skip non-stream keys and headOfPipeline
-        // which is just a duplicate
-
-        if (key === 'headOfPipeline' || !pipeline[key].on) {
-          continue;
-        }
-
-        pipeline[key].on('log', retriggerForStream.bind(transmuxer, key));
-      }
+        return intervalDuration(playlist, endSequence, expired);
     };
     /**
-     * Compare two arrays (even typed) for same-ness
-     */
-
-
-    var arrayEquals = function arrayEquals(a, b) {
-      var i;
-
-      if (a.length !== b.length) {
-        return false;
-      } // compare the value of each element in the array
-
-
-      for (i = 0; i < a.length; i++) {
-        if (a[i] !== b[i]) {
-          return false;
-        }
-      }
-
-      return true;
-    };
-
-    var generateSegmentTimingInfo = function generateSegmentTimingInfo(baseMediaDecodeTime, startDts, startPts, endDts, endPts, prependedContentDuration) {
-      var ptsOffsetFromDts = startPts - startDts,
-          decodeDuration = endDts - startDts,
-          presentationDuration = endPts - startPts; // The PTS and DTS values are based on the actual stream times from the segment,
-      // however, the player time values will reflect a start from the baseMediaDecodeTime.
-      // In order to provide relevant values for the player times, base timing info on the
-      // baseMediaDecodeTime and the DTS and PTS durations of the segment.
-
-      return {
-        start: {
-          dts: baseMediaDecodeTime,
-          pts: baseMediaDecodeTime + ptsOffsetFromDts
-        },
-        end: {
-          dts: baseMediaDecodeTime + decodeDuration,
-          pts: baseMediaDecodeTime + presentationDuration
-        },
-        prependedContentDuration: prependedContentDuration,
-        baseMediaDecodeTime: baseMediaDecodeTime
-      };
-    };
-    /**
-     * Constructs a single-track, ISO BMFF media segment from AAC data
-     * events. The output of this stream can be fed to a SourceBuffer
-     * configured with a suitable initialization segment.
-     * @param track {object} track metadata configuration
-     * @param options {object} transmuxer options object
-     * @param options.keepOriginalTimestamps {boolean} If true, keep the timestamps
-     *        in the source; false to adjust the first segment to start at 0.
-     */
-
-
-    _AudioSegmentStream = function AudioSegmentStream(track, options) {
-      var adtsFrames = [],
-          sequenceNumber,
-          earliestAllowedDts = 0,
-          audioAppendStartTs = 0,
-          videoBaseMediaDecodeTime = Infinity;
-      options = options || {};
-      sequenceNumber = options.firstSequenceNumber || 0;
-
-      _AudioSegmentStream.prototype.init.call(this);
-
-      this.push = function (data) {
-        trackDecodeInfo.collectDtsInfo(track, data);
-
-        if (track) {
-          audioProperties.forEach(function (prop) {
-            track[prop] = data[prop];
-          });
-        } // buffer audio data until end() is called
-
-
-        adtsFrames.push(data);
-      };
-
-      this.setEarliestDts = function (earliestDts) {
-        earliestAllowedDts = earliestDts;
-      };
-
-      this.setVideoBaseMediaDecodeTime = function (baseMediaDecodeTime) {
-        videoBaseMediaDecodeTime = baseMediaDecodeTime;
-      };
-
-      this.setAudioAppendStart = function (timestamp) {
-        audioAppendStartTs = timestamp;
-      };
-
-      this.flush = function () {
-        var frames, moof, mdat, boxes, frameDuration, segmentDuration, videoClockCyclesOfSilencePrefixed; // return early if no audio data has been observed
-
-        if (adtsFrames.length === 0) {
-          this.trigger('done', 'AudioSegmentStream');
-          return;
-        }
-
-        frames = audioFrameUtils.trimAdtsFramesByEarliestDts(adtsFrames, track, earliestAllowedDts);
-        track.baseMediaDecodeTime = trackDecodeInfo.calculateTrackBaseMediaDecodeTime(track, options.keepOriginalTimestamps); // amount of audio filled but the value is in video clock rather than audio clock
-
-        videoClockCyclesOfSilencePrefixed = audioFrameUtils.prefixWithSilence(track, frames, audioAppendStartTs, videoBaseMediaDecodeTime); // we have to build the index from byte locations to
-        // samples (that is, adts frames) in the audio data
-
-        track.samples = audioFrameUtils.generateSampleTable(frames); // concatenate the audio data to constuct the mdat
-
-        mdat = mp4Generator.mdat(audioFrameUtils.concatenateFrameData(frames));
-        adtsFrames = [];
-        moof = mp4Generator.moof(sequenceNumber, [track]);
-        boxes = new Uint8Array(moof.byteLength + mdat.byteLength); // bump the sequence number for next time
-
-        sequenceNumber++;
-        boxes.set(moof);
-        boxes.set(mdat, moof.byteLength);
-        trackDecodeInfo.clearDtsInfo(track);
-        frameDuration = Math.ceil(ONE_SECOND_IN_TS$1 * 1024 / track.samplerate); // TODO this check was added to maintain backwards compatibility (particularly with
-        // tests) on adding the timingInfo event. However, it seems unlikely that there's a
-        // valid use-case where an init segment/data should be triggered without associated
-        // frames. Leaving for now, but should be looked into.
-
-        if (frames.length) {
-          segmentDuration = frames.length * frameDuration;
-          this.trigger('segmentTimingInfo', generateSegmentTimingInfo( // The audio track's baseMediaDecodeTime is in audio clock cycles, but the
-          // frame info is in video clock cycles. Convert to match expectation of
-          // listeners (that all timestamps will be based on video clock cycles).
-          clock.audioTsToVideoTs(track.baseMediaDecodeTime, track.samplerate), // frame times are already in video clock, as is segment duration
-          frames[0].dts, frames[0].pts, frames[0].dts + segmentDuration, frames[0].pts + segmentDuration, videoClockCyclesOfSilencePrefixed || 0));
-          this.trigger('timingInfo', {
-            start: frames[0].pts,
-            end: frames[0].pts + segmentDuration
-          });
-        }
-
-        this.trigger('data', {
-          track: track,
-          boxes: boxes
-        });
-        this.trigger('done', 'AudioSegmentStream');
-      };
-
-      this.reset = function () {
-        trackDecodeInfo.clearDtsInfo(track);
-        adtsFrames = [];
-        this.trigger('reset');
-      };
-    };
-
-    _AudioSegmentStream.prototype = new stream();
-    /**
-     * Constructs a single-track, ISO BMFF media segment from H264 data
-     * events. The output of this stream can be fed to a SourceBuffer
-     * configured with a suitable initialization segment.
-     * @param track {object} track metadata configuration
-     * @param options {object} transmuxer options object
-     * @param options.alignGopsAtEnd {boolean} If true, start from the end of the
-     *        gopsToAlignWith list when attempting to align gop pts
-     * @param options.keepOriginalTimestamps {boolean} If true, keep the timestamps
-     *        in the source; false to adjust the first segment to start at 0.
-     */
-
-    _VideoSegmentStream = function VideoSegmentStream(track, options) {
-      var sequenceNumber,
-          nalUnits = [],
-          gopsToAlignWith = [],
-          config,
-          pps;
-      options = options || {};
-      sequenceNumber = options.firstSequenceNumber || 0;
-
-      _VideoSegmentStream.prototype.init.call(this);
-
-      delete track.minPTS;
-      this.gopCache_ = [];
-      /**
-        * Constructs a ISO BMFF segment given H264 nalUnits
-        * @param {Object} nalUnit A data event representing a nalUnit
-        * @param {String} nalUnit.nalUnitType
-        * @param {Object} nalUnit.config Properties for a mp4 track
-        * @param {Uint8Array} nalUnit.data The nalUnit bytes
-        * @see lib/codecs/h264.js
-       **/
-
-      this.push = function (nalUnit) {
-        trackDecodeInfo.collectDtsInfo(track, nalUnit); // record the track config
-
-        if (nalUnit.nalUnitType === 'seq_parameter_set_rbsp' && !config) {
-          config = nalUnit.config;
-          track.sps = [nalUnit.data];
-          videoProperties.forEach(function (prop) {
-            track[prop] = config[prop];
-          }, this);
-        }
-
-        if (nalUnit.nalUnitType === 'pic_parameter_set_rbsp' && !pps) {
-          pps = nalUnit.data;
-          track.pps = [nalUnit.data];
-        } // buffer video until flush() is called
-
-
-        nalUnits.push(nalUnit);
-      };
-      /**
-        * Pass constructed ISO BMFF track and boxes on to the
-        * next stream in the pipeline
-       **/
-
-
-      this.flush = function () {
-        var frames,
-            gopForFusion,
-            gops,
-            moof,
-            mdat,
-            boxes,
-            prependedContentDuration = 0,
-            firstGop,
-            lastGop; // Throw away nalUnits at the start of the byte stream until
-        // we find the first AUD
-
-        while (nalUnits.length) {
-          if (nalUnits[0].nalUnitType === 'access_unit_delimiter_rbsp') {
-            break;
-          }
-
-          nalUnits.shift();
-        } // Return early if no video data has been observed
-
-
-        if (nalUnits.length === 0) {
-          this.resetStream_();
-          this.trigger('done', 'VideoSegmentStream');
-          return;
-        } // Organize the raw nal-units into arrays that represent
-        // higher-level constructs such as frames and gops
-        // (group-of-pictures)
-
-
-        frames = frameUtils.groupNalsIntoFrames(nalUnits);
-        gops = frameUtils.groupFramesIntoGops(frames); // If the first frame of this fragment is not a keyframe we have
-        // a problem since MSE (on Chrome) requires a leading keyframe.
-        //
-        // We have two approaches to repairing this situation:
-        // 1) GOP-FUSION:
-        //    This is where we keep track of the GOPS (group-of-pictures)
-        //    from previous fragments and attempt to find one that we can
-        //    prepend to the current fragment in order to create a valid
-        //    fragment.
-        // 2) KEYFRAME-PULLING:
-        //    Here we search for the first keyframe in the fragment and
-        //    throw away all the frames between the start of the fragment
-        //    and that keyframe. We then extend the duration and pull the
-        //    PTS of the keyframe forward so that it covers the time range
-        //    of the frames that were disposed of.
-        //
-        // #1 is far prefereable over #2 which can cause "stuttering" but
-        // requires more things to be just right.
-
-        if (!gops[0][0].keyFrame) {
-          // Search for a gop for fusion from our gopCache
-          gopForFusion = this.getGopForFusion_(nalUnits[0], track);
-
-          if (gopForFusion) {
-            // in order to provide more accurate timing information about the segment, save
-            // the number of seconds prepended to the original segment due to GOP fusion
-            prependedContentDuration = gopForFusion.duration;
-            gops.unshift(gopForFusion); // Adjust Gops' metadata to account for the inclusion of the
-            // new gop at the beginning
-
-            gops.byteLength += gopForFusion.byteLength;
-            gops.nalCount += gopForFusion.nalCount;
-            gops.pts = gopForFusion.pts;
-            gops.dts = gopForFusion.dts;
-            gops.duration += gopForFusion.duration;
-          } else {
-            // If we didn't find a candidate gop fall back to keyframe-pulling
-            gops = frameUtils.extendFirstKeyFrame(gops);
-          }
-        } // Trim gops to align with gopsToAlignWith
-
-
-        if (gopsToAlignWith.length) {
-          var alignedGops;
-
-          if (options.alignGopsAtEnd) {
-            alignedGops = this.alignGopsAtEnd_(gops);
-          } else {
-            alignedGops = this.alignGopsAtStart_(gops);
-          }
-
-          if (!alignedGops) {
-            // save all the nals in the last GOP into the gop cache
-            this.gopCache_.unshift({
-              gop: gops.pop(),
-              pps: track.pps,
-              sps: track.sps
-            }); // Keep a maximum of 6 GOPs in the cache
-
-            this.gopCache_.length = Math.min(6, this.gopCache_.length); // Clear nalUnits
-
-            nalUnits = []; // return early no gops can be aligned with desired gopsToAlignWith
-
-            this.resetStream_();
-            this.trigger('done', 'VideoSegmentStream');
-            return;
-          } // Some gops were trimmed. clear dts info so minSegmentDts and pts are correct
-          // when recalculated before sending off to CoalesceStream
-
-
-          trackDecodeInfo.clearDtsInfo(track);
-          gops = alignedGops;
-        }
-
-        trackDecodeInfo.collectDtsInfo(track, gops); // First, we have to build the index from byte locations to
-        // samples (that is, frames) in the video data
-
-        track.samples = frameUtils.generateSampleTable(gops); // Concatenate the video data and construct the mdat
-
-        mdat = mp4Generator.mdat(frameUtils.concatenateNalData(gops));
-        track.baseMediaDecodeTime = trackDecodeInfo.calculateTrackBaseMediaDecodeTime(track, options.keepOriginalTimestamps);
-        this.trigger('processedGopsInfo', gops.map(function (gop) {
-          return {
-            pts: gop.pts,
-            dts: gop.dts,
-            byteLength: gop.byteLength
-          };
-        }));
-        firstGop = gops[0];
-        lastGop = gops[gops.length - 1];
-        this.trigger('segmentTimingInfo', generateSegmentTimingInfo(track.baseMediaDecodeTime, firstGop.dts, firstGop.pts, lastGop.dts + lastGop.duration, lastGop.pts + lastGop.duration, prependedContentDuration));
-        this.trigger('timingInfo', {
-          start: gops[0].pts,
-          end: gops[gops.length - 1].pts + gops[gops.length - 1].duration
-        }); // save all the nals in the last GOP into the gop cache
-
-        this.gopCache_.unshift({
-          gop: gops.pop(),
-          pps: track.pps,
-          sps: track.sps
-        }); // Keep a maximum of 6 GOPs in the cache
-
-        this.gopCache_.length = Math.min(6, this.gopCache_.length); // Clear nalUnits
-
-        nalUnits = [];
-        this.trigger('baseMediaDecodeTime', track.baseMediaDecodeTime);
-        this.trigger('timelineStartInfo', track.timelineStartInfo);
-        moof = mp4Generator.moof(sequenceNumber, [track]); // it would be great to allocate this array up front instead of
-        // throwing away hundreds of media segment fragments
-
-        boxes = new Uint8Array(moof.byteLength + mdat.byteLength); // Bump the sequence number for next time
-
-        sequenceNumber++;
-        boxes.set(moof);
-        boxes.set(mdat, moof.byteLength);
-        this.trigger('data', {
-          track: track,
-          boxes: boxes
-        });
-        this.resetStream_(); // Continue with the flush process now
-
-        this.trigger('done', 'VideoSegmentStream');
-      };
-
-      this.reset = function () {
-        this.resetStream_();
-        nalUnits = [];
-        this.gopCache_.length = 0;
-        gopsToAlignWith.length = 0;
-        this.trigger('reset');
-      };
-
-      this.resetStream_ = function () {
-        trackDecodeInfo.clearDtsInfo(track); // reset config and pps because they may differ across segments
-        // for instance, when we are rendition switching
-
-        config = undefined;
-        pps = undefined;
-      }; // Search for a candidate Gop for gop-fusion from the gop cache and
-      // return it or return null if no good candidate was found
-
-
-      this.getGopForFusion_ = function (nalUnit) {
-        var halfSecond = 45000,
-            // Half-a-second in a 90khz clock
-        allowableOverlap = 10000,
-            // About 3 frames @ 30fps
-        nearestDistance = Infinity,
-            dtsDistance,
-            nearestGopObj,
-            currentGop,
-            currentGopObj,
-            i; // Search for the GOP nearest to the beginning of this nal unit
-
-        for (i = 0; i < this.gopCache_.length; i++) {
-          currentGopObj = this.gopCache_[i];
-          currentGop = currentGopObj.gop; // Reject Gops with different SPS or PPS
-
-          if (!(track.pps && arrayEquals(track.pps[0], currentGopObj.pps[0])) || !(track.sps && arrayEquals(track.sps[0], currentGopObj.sps[0]))) {
-            continue;
-          } // Reject Gops that would require a negative baseMediaDecodeTime
-
-
-          if (currentGop.dts < track.timelineStartInfo.dts) {
-            continue;
-          } // The distance between the end of the gop and the start of the nalUnit
-
-
-          dtsDistance = nalUnit.dts - currentGop.dts - currentGop.duration; // Only consider GOPS that start before the nal unit and end within
-          // a half-second of the nal unit
-
-          if (dtsDistance >= -allowableOverlap && dtsDistance <= halfSecond) {
-            // Always use the closest GOP we found if there is more than
-            // one candidate
-            if (!nearestGopObj || nearestDistance > dtsDistance) {
-              nearestGopObj = currentGopObj;
-              nearestDistance = dtsDistance;
-            }
-          }
-        }
-
-        if (nearestGopObj) {
-          return nearestGopObj.gop;
-        }
-
-        return null;
-      }; // trim gop list to the first gop found that has a matching pts with a gop in the list
-      // of gopsToAlignWith starting from the START of the list
-
-
-      this.alignGopsAtStart_ = function (gops) {
-        var alignIndex, gopIndex, align, gop, byteLength, nalCount, duration, alignedGops;
-        byteLength = gops.byteLength;
-        nalCount = gops.nalCount;
-        duration = gops.duration;
-        alignIndex = gopIndex = 0;
-
-        while (alignIndex < gopsToAlignWith.length && gopIndex < gops.length) {
-          align = gopsToAlignWith[alignIndex];
-          gop = gops[gopIndex];
-
-          if (align.pts === gop.pts) {
-            break;
-          }
-
-          if (gop.pts > align.pts) {
-            // this current gop starts after the current gop we want to align on, so increment
-            // align index
-            alignIndex++;
-            continue;
-          } // current gop starts before the current gop we want to align on. so increment gop
-          // index
-
-
-          gopIndex++;
-          byteLength -= gop.byteLength;
-          nalCount -= gop.nalCount;
-          duration -= gop.duration;
-        }
-
-        if (gopIndex === 0) {
-          // no gops to trim
-          return gops;
-        }
-
-        if (gopIndex === gops.length) {
-          // all gops trimmed, skip appending all gops
-          return null;
-        }
-
-        alignedGops = gops.slice(gopIndex);
-        alignedGops.byteLength = byteLength;
-        alignedGops.duration = duration;
-        alignedGops.nalCount = nalCount;
-        alignedGops.pts = alignedGops[0].pts;
-        alignedGops.dts = alignedGops[0].dts;
-        return alignedGops;
-      }; // trim gop list to the first gop found that has a matching pts with a gop in the list
-      // of gopsToAlignWith starting from the END of the list
-
-
-      this.alignGopsAtEnd_ = function (gops) {
-        var alignIndex, gopIndex, align, gop, alignEndIndex, matchFound;
-        alignIndex = gopsToAlignWith.length - 1;
-        gopIndex = gops.length - 1;
-        alignEndIndex = null;
-        matchFound = false;
-
-        while (alignIndex >= 0 && gopIndex >= 0) {
-          align = gopsToAlignWith[alignIndex];
-          gop = gops[gopIndex];
-
-          if (align.pts === gop.pts) {
-            matchFound = true;
-            break;
-          }
-
-          if (align.pts > gop.pts) {
-            alignIndex--;
-            continue;
-          }
-
-          if (alignIndex === gopsToAlignWith.length - 1) {
-            // gop.pts is greater than the last alignment candidate. If no match is found
-            // by the end of this loop, we still want to append gops that come after this
-            // point
-            alignEndIndex = gopIndex;
-          }
-
-          gopIndex--;
-        }
-
-        if (!matchFound && alignEndIndex === null) {
-          return null;
-        }
-
-        var trimIndex;
-
-        if (matchFound) {
-          trimIndex = gopIndex;
-        } else {
-          trimIndex = alignEndIndex;
-        }
-
-        if (trimIndex === 0) {
-          return gops;
-        }
-
-        var alignedGops = gops.slice(trimIndex);
-        var metadata = alignedGops.reduce(function (total, gop) {
-          total.byteLength += gop.byteLength;
-          total.duration += gop.duration;
-          total.nalCount += gop.nalCount;
-          return total;
-        }, {
-          byteLength: 0,
-          duration: 0,
-          nalCount: 0
-        });
-        alignedGops.byteLength = metadata.byteLength;
-        alignedGops.duration = metadata.duration;
-        alignedGops.nalCount = metadata.nalCount;
-        alignedGops.pts = alignedGops[0].pts;
-        alignedGops.dts = alignedGops[0].dts;
-        return alignedGops;
-      };
-
-      this.alignGopsWith = function (newGopsToAlignWith) {
-        gopsToAlignWith = newGopsToAlignWith;
-      };
-    };
-
-    _VideoSegmentStream.prototype = new stream();
-    /**
-     * A Stream that can combine multiple streams (ie. audio & video)
-     * into a single output segment for MSE. Also supports audio-only
-     * and video-only streams.
-     * @param options {object} transmuxer options object
-     * @param options.keepOriginalTimestamps {boolean} If true, keep the timestamps
-     *        in the source; false to adjust the first segment to start at media timeline start.
-     */
-
-    _CoalesceStream = function CoalesceStream(options, metadataStream) {
-      // Number of Tracks per output segment
-      // If greater than 1, we combine multiple
-      // tracks into a single segment
-      this.numberOfTracks = 0;
-      this.metadataStream = metadataStream;
-      options = options || {};
-
-      if (typeof options.remux !== 'undefined') {
-        this.remuxTracks = !!options.remux;
-      } else {
-        this.remuxTracks = true;
-      }
-
-      if (typeof options.keepOriginalTimestamps === 'boolean') {
-        this.keepOriginalTimestamps = options.keepOriginalTimestamps;
-      } else {
-        this.keepOriginalTimestamps = false;
-      }
-
-      this.pendingTracks = [];
-      this.videoTrack = null;
-      this.pendingBoxes = [];
-      this.pendingCaptions = [];
-      this.pendingMetadata = [];
-      this.pendingBytes = 0;
-      this.emittedTracks = 0;
-
-      _CoalesceStream.prototype.init.call(this); // Take output from multiple
-
-
-      this.push = function (output) {
-        // buffer incoming captions until the associated video segment
-        // finishes
-        if (output.text) {
-          return this.pendingCaptions.push(output);
-        } // buffer incoming id3 tags until the final flush
-
-
-        if (output.frames) {
-          return this.pendingMetadata.push(output);
-        } // Add this track to the list of pending tracks and store
-        // important information required for the construction of
-        // the final segment
-
-
-        this.pendingTracks.push(output.track);
-        this.pendingBytes += output.boxes.byteLength; // TODO: is there an issue for this against chrome?
-        // We unshift audio and push video because
-        // as of Chrome 75 when switching from
-        // one init segment to another if the video
-        // mdat does not appear after the audio mdat
-        // only audio will play for the duration of our transmux.
-
-        if (output.track.type === 'video') {
-          this.videoTrack = output.track;
-          this.pendingBoxes.push(output.boxes);
-        }
-
-        if (output.track.type === 'audio') {
-          this.audioTrack = output.track;
-          this.pendingBoxes.unshift(output.boxes);
-        }
-      };
-    };
-
-    _CoalesceStream.prototype = new stream();
-
-    _CoalesceStream.prototype.flush = function (flushSource) {
-      var offset = 0,
-          event = {
-        captions: [],
-        captionStreams: {},
-        metadata: [],
-        info: {}
-      },
-          caption,
-          id3,
-          initSegment,
-          timelineStartPts = 0,
-          i;
-
-      if (this.pendingTracks.length < this.numberOfTracks) {
-        if (flushSource !== 'VideoSegmentStream' && flushSource !== 'AudioSegmentStream') {
-          // Return because we haven't received a flush from a data-generating
-          // portion of the segment (meaning that we have only recieved meta-data
-          // or captions.)
-          return;
-        } else if (this.remuxTracks) {
-          // Return until we have enough tracks from the pipeline to remux (if we
-          // are remuxing audio and video into a single MP4)
-          return;
-        } else if (this.pendingTracks.length === 0) {
-          // In the case where we receive a flush without any data having been
-          // received we consider it an emitted track for the purposes of coalescing
-          // `done` events.
-          // We do this for the case where there is an audio and video track in the
-          // segment but no audio data. (seen in several playlists with alternate
-          // audio tracks and no audio present in the main TS segments.)
-          this.emittedTracks++;
-
-          if (this.emittedTracks >= this.numberOfTracks) {
-            this.trigger('done');
-            this.emittedTracks = 0;
-          }
-
-          return;
-        }
-      }
-
-      if (this.videoTrack) {
-        timelineStartPts = this.videoTrack.timelineStartInfo.pts;
-        videoProperties.forEach(function (prop) {
-          event.info[prop] = this.videoTrack[prop];
-        }, this);
-      } else if (this.audioTrack) {
-        timelineStartPts = this.audioTrack.timelineStartInfo.pts;
-        audioProperties.forEach(function (prop) {
-          event.info[prop] = this.audioTrack[prop];
-        }, this);
-      }
-
-      if (this.videoTrack || this.audioTrack) {
-        if (this.pendingTracks.length === 1) {
-          event.type = this.pendingTracks[0].type;
-        } else {
-          event.type = 'combined';
-        }
-
-        this.emittedTracks += this.pendingTracks.length;
-        initSegment = mp4Generator.initSegment(this.pendingTracks); // Create a new typed array to hold the init segment
-
-        event.initSegment = new Uint8Array(initSegment.byteLength); // Create an init segment containing a moov
-        // and track definitions
-
-        event.initSegment.set(initSegment); // Create a new typed array to hold the moof+mdats
-
-        event.data = new Uint8Array(this.pendingBytes); // Append each moof+mdat (one per track) together
-
-        for (i = 0; i < this.pendingBoxes.length; i++) {
-          event.data.set(this.pendingBoxes[i], offset);
-          offset += this.pendingBoxes[i].byteLength;
-        } // Translate caption PTS times into second offsets to match the
-        // video timeline for the segment, and add track info
-
-
-        for (i = 0; i < this.pendingCaptions.length; i++) {
-          caption = this.pendingCaptions[i];
-          caption.startTime = clock.metadataTsToSeconds(caption.startPts, timelineStartPts, this.keepOriginalTimestamps);
-          caption.endTime = clock.metadataTsToSeconds(caption.endPts, timelineStartPts, this.keepOriginalTimestamps);
-          event.captionStreams[caption.stream] = true;
-          event.captions.push(caption);
-        } // Translate ID3 frame PTS times into second offsets to match the
-        // video timeline for the segment
-
-
-        for (i = 0; i < this.pendingMetadata.length; i++) {
-          id3 = this.pendingMetadata[i];
-          id3.cueTime = clock.metadataTsToSeconds(id3.pts, timelineStartPts, this.keepOriginalTimestamps);
-          event.metadata.push(id3);
-        } // We add this to every single emitted segment even though we only need
-        // it for the first
-
-
-        event.metadata.dispatchType = this.metadataStream.dispatchType; // Reset stream state
-
-        this.pendingTracks.length = 0;
-        this.videoTrack = null;
-        this.pendingBoxes.length = 0;
-        this.pendingCaptions.length = 0;
-        this.pendingBytes = 0;
-        this.pendingMetadata.length = 0; // Emit the built segment
-        // We include captions and ID3 tags for backwards compatibility,
-        // ideally we should send only video and audio in the data event
-
-        this.trigger('data', event); // Emit each caption to the outside world
-        // Ideally, this would happen immediately on parsing captions,
-        // but we need to ensure that video data is sent back first
-        // so that caption timing can be adjusted to match video timing
-
-        for (i = 0; i < event.captions.length; i++) {
-          caption = event.captions[i];
-          this.trigger('caption', caption);
-        } // Emit each id3 tag to the outside world
-        // Ideally, this would happen immediately on parsing the tag,
-        // but we need to ensure that video data is sent back first
-        // so that ID3 frame timing can be adjusted to match video timing
-
-
-        for (i = 0; i < event.metadata.length; i++) {
-          id3 = event.metadata[i];
-          this.trigger('id3Frame', id3);
-        }
-      } // Only emit `done` if all tracks have been flushed and emitted
-
-
-      if (this.emittedTracks >= this.numberOfTracks) {
-        this.trigger('done');
-        this.emittedTracks = 0;
-      }
-    };
-
-    _CoalesceStream.prototype.setRemux = function (val) {
-      this.remuxTracks = val;
-    };
-    /**
-     * A Stream that expects MP2T binary data as input and produces
-     * corresponding media segments, suitable for use with Media Source
-     * Extension (MSE) implementations that support the ISO BMFF byte
-     * stream format, like Chrome.
-     */
-
-
-    _Transmuxer = function Transmuxer(options) {
-      var self = this,
-          hasFlushed = true,
-          videoTrack,
-          audioTrack;
-
-      _Transmuxer.prototype.init.call(this);
-
-      options = options || {};
-      this.baseMediaDecodeTime = options.baseMediaDecodeTime || 0;
-      this.transmuxPipeline_ = {};
-
-      this.setupAacPipeline = function () {
-        var pipeline = {};
-        this.transmuxPipeline_ = pipeline;
-        pipeline.type = 'aac';
-        pipeline.metadataStream = new m2ts_1.MetadataStream(); // set up the parsing pipeline
-
-        pipeline.aacStream = new aac();
-        pipeline.audioTimestampRolloverStream = new m2ts_1.TimestampRolloverStream('audio');
-        pipeline.timedMetadataTimestampRolloverStream = new m2ts_1.TimestampRolloverStream('timed-metadata');
-        pipeline.adtsStream = new adts();
-        pipeline.coalesceStream = new _CoalesceStream(options, pipeline.metadataStream);
-        pipeline.headOfPipeline = pipeline.aacStream;
-        pipeline.aacStream.pipe(pipeline.audioTimestampRolloverStream).pipe(pipeline.adtsStream);
-        pipeline.aacStream.pipe(pipeline.timedMetadataTimestampRolloverStream).pipe(pipeline.metadataStream).pipe(pipeline.coalesceStream);
-        pipeline.metadataStream.on('timestamp', function (frame) {
-          pipeline.aacStream.setTimestamp(frame.timeStamp);
-        });
-        pipeline.aacStream.on('data', function (data) {
-          if (data.type !== 'timed-metadata' && data.type !== 'audio' || pipeline.audioSegmentStream) {
-            return;
-          }
-
-          audioTrack = audioTrack || {
-            timelineStartInfo: {
-              baseMediaDecodeTime: self.baseMediaDecodeTime
-            },
-            codec: 'adts',
-            type: 'audio'
-          }; // hook up the audio segment stream to the first track with aac data
-
-          pipeline.coalesceStream.numberOfTracks++;
-          pipeline.audioSegmentStream = new _AudioSegmentStream(audioTrack, options);
-          pipeline.audioSegmentStream.on('log', self.getLogTrigger_('audioSegmentStream'));
-          pipeline.audioSegmentStream.on('timingInfo', self.trigger.bind(self, 'audioTimingInfo')); // Set up the final part of the audio pipeline
-
-          pipeline.adtsStream.pipe(pipeline.audioSegmentStream).pipe(pipeline.coalesceStream); // emit pmt info
-
-          self.trigger('trackinfo', {
-            hasAudio: !!audioTrack,
-            hasVideo: !!videoTrack
-          });
-        }); // Re-emit any data coming from the coalesce stream to the outside world
-
-        pipeline.coalesceStream.on('data', this.trigger.bind(this, 'data')); // Let the consumer know we have finished flushing the entire pipeline
-
-        pipeline.coalesceStream.on('done', this.trigger.bind(this, 'done'));
-        addPipelineLogRetriggers(this, pipeline);
-      };
-
-      this.setupTsPipeline = function () {
-        var pipeline = {};
-        this.transmuxPipeline_ = pipeline;
-        pipeline.type = 'ts';
-        pipeline.metadataStream = new m2ts_1.MetadataStream(); // set up the parsing pipeline
-
-        pipeline.packetStream = new m2ts_1.TransportPacketStream();
-        pipeline.parseStream = new m2ts_1.TransportParseStream();
-        pipeline.elementaryStream = new m2ts_1.ElementaryStream();
-        pipeline.timestampRolloverStream = new m2ts_1.TimestampRolloverStream();
-        pipeline.adtsStream = new adts();
-        pipeline.h264Stream = new H264Stream();
-        pipeline.captionStream = new m2ts_1.CaptionStream(options);
-        pipeline.coalesceStream = new _CoalesceStream(options, pipeline.metadataStream);
-        pipeline.headOfPipeline = pipeline.packetStream; // disassemble MPEG2-TS packets into elementary streams
-
-        pipeline.packetStream.pipe(pipeline.parseStream).pipe(pipeline.elementaryStream).pipe(pipeline.timestampRolloverStream); // !!THIS ORDER IS IMPORTANT!!
-        // demux the streams
-
-        pipeline.timestampRolloverStream.pipe(pipeline.h264Stream);
-        pipeline.timestampRolloverStream.pipe(pipeline.adtsStream);
-        pipeline.timestampRolloverStream.pipe(pipeline.metadataStream).pipe(pipeline.coalesceStream); // Hook up CEA-608/708 caption stream
-
-        pipeline.h264Stream.pipe(pipeline.captionStream).pipe(pipeline.coalesceStream);
-        pipeline.elementaryStream.on('data', function (data) {
-          var i;
-
-          if (data.type === 'metadata') {
-            i = data.tracks.length; // scan the tracks listed in the metadata
-
-            while (i--) {
-              if (!videoTrack && data.tracks[i].type === 'video') {
-                videoTrack = data.tracks[i];
-                videoTrack.timelineStartInfo.baseMediaDecodeTime = self.baseMediaDecodeTime;
-              } else if (!audioTrack && data.tracks[i].type === 'audio') {
-                audioTrack = data.tracks[i];
-                audioTrack.timelineStartInfo.baseMediaDecodeTime = self.baseMediaDecodeTime;
-              }
-            } // hook up the video segment stream to the first track with h264 data
-
-
-            if (videoTrack && !pipeline.videoSegmentStream) {
-              pipeline.coalesceStream.numberOfTracks++;
-              pipeline.videoSegmentStream = new _VideoSegmentStream(videoTrack, options);
-              pipeline.videoSegmentStream.on('log', self.getLogTrigger_('videoSegmentStream'));
-              pipeline.videoSegmentStream.on('timelineStartInfo', function (timelineStartInfo) {
-                // When video emits timelineStartInfo data after a flush, we forward that
-                // info to the AudioSegmentStream, if it exists, because video timeline
-                // data takes precedence.  Do not do this if keepOriginalTimestamps is set,
-                // because this is a particularly subtle form of timestamp alteration.
-                if (audioTrack && !options.keepOriginalTimestamps) {
-                  audioTrack.timelineStartInfo = timelineStartInfo; // On the first segment we trim AAC frames that exist before the
-                  // very earliest DTS we have seen in video because Chrome will
-                  // interpret any video track with a baseMediaDecodeTime that is
-                  // non-zero as a gap.
-
-                  pipeline.audioSegmentStream.setEarliestDts(timelineStartInfo.dts - self.baseMediaDecodeTime);
-                }
-              });
-              pipeline.videoSegmentStream.on('processedGopsInfo', self.trigger.bind(self, 'gopInfo'));
-              pipeline.videoSegmentStream.on('segmentTimingInfo', self.trigger.bind(self, 'videoSegmentTimingInfo'));
-              pipeline.videoSegmentStream.on('baseMediaDecodeTime', function (baseMediaDecodeTime) {
-                if (audioTrack) {
-                  pipeline.audioSegmentStream.setVideoBaseMediaDecodeTime(baseMediaDecodeTime);
-                }
-              });
-              pipeline.videoSegmentStream.on('timingInfo', self.trigger.bind(self, 'videoTimingInfo')); // Set up the final part of the video pipeline
-
-              pipeline.h264Stream.pipe(pipeline.videoSegmentStream).pipe(pipeline.coalesceStream);
-            }
-
-            if (audioTrack && !pipeline.audioSegmentStream) {
-              // hook up the audio segment stream to the first track with aac data
-              pipeline.coalesceStream.numberOfTracks++;
-              pipeline.audioSegmentStream = new _AudioSegmentStream(audioTrack, options);
-              pipeline.audioSegmentStream.on('log', self.getLogTrigger_('audioSegmentStream'));
-              pipeline.audioSegmentStream.on('timingInfo', self.trigger.bind(self, 'audioTimingInfo'));
-              pipeline.audioSegmentStream.on('segmentTimingInfo', self.trigger.bind(self, 'audioSegmentTimingInfo')); // Set up the final part of the audio pipeline
-
-              pipeline.adtsStream.pipe(pipeline.audioSegmentStream).pipe(pipeline.coalesceStream);
-            } // emit pmt info
-
-
-            self.trigger('trackinfo', {
-              hasAudio: !!audioTrack,
-              hasVideo: !!videoTrack
-            });
-          }
-        }); // Re-emit any data coming from the coalesce stream to the outside world
-
-        pipeline.coalesceStream.on('data', this.trigger.bind(this, 'data'));
-        pipeline.coalesceStream.on('id3Frame', function (id3Frame) {
-          id3Frame.dispatchType = pipeline.metadataStream.dispatchType;
-          self.trigger('id3Frame', id3Frame);
-        });
-        pipeline.coalesceStream.on('caption', this.trigger.bind(this, 'caption')); // Let the consumer know we have finished flushing the entire pipeline
-
-        pipeline.coalesceStream.on('done', this.trigger.bind(this, 'done'));
-        addPipelineLogRetriggers(this, pipeline);
-      }; // hook up the segment streams once track metadata is delivered
-
-
-      this.setBaseMediaDecodeTime = function (baseMediaDecodeTime) {
-        var pipeline = this.transmuxPipeline_;
-
-        if (!options.keepOriginalTimestamps) {
-          this.baseMediaDecodeTime = baseMediaDecodeTime;
-        }
-
-        if (audioTrack) {
-          audioTrack.timelineStartInfo.dts = undefined;
-          audioTrack.timelineStartInfo.pts = undefined;
-          trackDecodeInfo.clearDtsInfo(audioTrack);
-
-          if (pipeline.audioTimestampRolloverStream) {
-            pipeline.audioTimestampRolloverStream.discontinuity();
-          }
-        }
-
-        if (videoTrack) {
-          if (pipeline.videoSegmentStream) {
-            pipeline.videoSegmentStream.gopCache_ = [];
-          }
-
-          videoTrack.timelineStartInfo.dts = undefined;
-          videoTrack.timelineStartInfo.pts = undefined;
-          trackDecodeInfo.clearDtsInfo(videoTrack);
-          pipeline.captionStream.reset();
-        }
-
-        if (pipeline.timestampRolloverStream) {
-          pipeline.timestampRolloverStream.discontinuity();
-        }
-      };
-
-      this.setAudioAppendStart = function (timestamp) {
-        if (audioTrack) {
-          this.transmuxPipeline_.audioSegmentStream.setAudioAppendStart(timestamp);
-        }
-      };
-
-      this.setRemux = function (val) {
-        var pipeline = this.transmuxPipeline_;
-        options.remux = val;
-
-        if (pipeline && pipeline.coalesceStream) {
-          pipeline.coalesceStream.setRemux(val);
-        }
-      };
-
-      this.alignGopsWith = function (gopsToAlignWith) {
-        if (videoTrack && this.transmuxPipeline_.videoSegmentStream) {
-          this.transmuxPipeline_.videoSegmentStream.alignGopsWith(gopsToAlignWith);
-        }
-      };
-
-      this.getLogTrigger_ = function (key) {
-        var self = this;
-        return function (event) {
-          event.stream = key;
-          self.trigger('log', event);
-        };
-      }; // feed incoming data to the front of the parsing pipeline
-
-
-      this.push = function (data) {
-        if (hasFlushed) {
-          var isAac = isLikelyAacData(data);
-
-          if (isAac && this.transmuxPipeline_.type !== 'aac') {
-            this.setupAacPipeline();
-          } else if (!isAac && this.transmuxPipeline_.type !== 'ts') {
-            this.setupTsPipeline();
-          }
-
-          hasFlushed = false;
-        }
-
-        this.transmuxPipeline_.headOfPipeline.push(data);
-      }; // flush any buffered data
-
-
-      this.flush = function () {
-        hasFlushed = true; // Start at the top of the pipeline and flush all pending work
-
-        this.transmuxPipeline_.headOfPipeline.flush();
-      };
-
-      this.endTimeline = function () {
-        this.transmuxPipeline_.headOfPipeline.endTimeline();
-      };
-
-      this.reset = function () {
-        if (this.transmuxPipeline_.headOfPipeline) {
-          this.transmuxPipeline_.headOfPipeline.reset();
-        }
-      }; // Caption data has to be reset when seeking outside buffered range
-
-
-      this.resetCaptions = function () {
-        if (this.transmuxPipeline_.captionStream) {
-          this.transmuxPipeline_.captionStream.reset();
-        }
-      };
-    };
-
-    _Transmuxer.prototype = new stream();
-    var transmuxer = {
-      Transmuxer: _Transmuxer,
-      VideoSegmentStream: _VideoSegmentStream,
-      AudioSegmentStream: _AudioSegmentStream,
-      AUDIO_PROPERTIES: audioProperties,
-      VIDEO_PROPERTIES: videoProperties,
-      // exported for testing
-      generateSegmentTimingInfo: generateSegmentTimingInfo
-    };
-    /**
-     * mux.js
+     * Calculate the time between two indexes in the current playlist
+     * neight the start- nor the end-index need to be within the current
+     * playlist in which case, the targetDuration of the playlist is used
+     * to approximate the durations of the segments
      *
-     * Copyright (c) Brightcove
-     * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE
+     * @param {Array} options.durationList list to iterate over for durations.
+     * @param {number} options.defaultDuration duration to use for elements before or after the durationList
+     * @param {number} options.startIndex partsAndSegments index to start
+     * @param {number} options.endIndex partsAndSegments index to end.
+     * @return {number} the number of seconds between startIndex and endIndex
      */
 
-    var toUnsigned$3 = function toUnsigned(value) {
-      return value >>> 0;
-    };
-
-    var toHexString$1 = function toHexString(value) {
-      return ('00' + value.toString(16)).slice(-2);
-    };
-
-    var bin = {
-      toUnsigned: toUnsigned$3,
-      toHexString: toHexString$1
-    };
-
-    var parseType$1 = function parseType(buffer) {
-      var result = '';
-      result += String.fromCharCode(buffer[0]);
-      result += String.fromCharCode(buffer[1]);
-      result += String.fromCharCode(buffer[2]);
-      result += String.fromCharCode(buffer[3]);
-      return result;
-    };
-
-    var parseType_1 = parseType$1;
-    var toUnsigned$2 = bin.toUnsigned;
-
-    var findBox = function findBox(data, path) {
-      var results = [],
-          i,
-          size,
-          type,
-          end,
-          subresults;
-
-      if (!path.length) {
-        // short-circuit the search for empty paths
-        return null;
-      }
-
-      for (i = 0; i < data.byteLength;) {
-        size = toUnsigned$2(data[i] << 24 | data[i + 1] << 16 | data[i + 2] << 8 | data[i + 3]);
-        type = parseType_1(data.subarray(i + 4, i + 8));
-        end = size > 1 ? i + size : data.byteLength;
-
-        if (type === path[0]) {
-          if (path.length === 1) {
-            // this is the end of the path and we've found the box we were
-            // looking for
-            results.push(data.subarray(i + 8, end));
-          } else {
-            // recursively search for the next box along the path
-            subresults = findBox(data.subarray(i + 8, end), path.slice(1));
-
-            if (subresults.length) {
-              results = results.concat(subresults);
+    const sumDurations = function ({
+                                       defaultDuration,
+                                       durationList,
+                                       startIndex,
+                                       endIndex
+                                   }) {
+        let durations = 0;
+        if (startIndex > endIndex) {
+            [startIndex, endIndex] = [endIndex, startIndex];
+        }
+        if (startIndex < 0) {
+            for (let i = startIndex; i < Math.min(0, endIndex); i++) {
+                durations += defaultDuration;
             }
-          }
+            startIndex = 0;
         }
-
-        i = end;
-      } // we've finished searching all of data
-
-
-      return results;
-    };
-
-    var findBox_1 = findBox;
-    var toUnsigned$1 = bin.toUnsigned;
-    var getUint64$1 = numbers.getUint64;
-
-    var tfdt = function tfdt(data) {
-      var result = {
-        version: data[0],
-        flags: new Uint8Array(data.subarray(1, 4))
-      };
-
-      if (result.version === 1) {
-        result.baseMediaDecodeTime = getUint64$1(data.subarray(4));
-      } else {
-        result.baseMediaDecodeTime = toUnsigned$1(data[4] << 24 | data[5] << 16 | data[6] << 8 | data[7]);
-      }
-
-      return result;
-    };
-
-    var parseTfdt = tfdt;
-
-    var parseSampleFlags = function parseSampleFlags(flags) {
-      return {
-        isLeading: (flags[0] & 0x0c) >>> 2,
-        dependsOn: flags[0] & 0x03,
-        isDependedOn: (flags[1] & 0xc0) >>> 6,
-        hasRedundancy: (flags[1] & 0x30) >>> 4,
-        paddingValue: (flags[1] & 0x0e) >>> 1,
-        isNonSyncSample: flags[1] & 0x01,
-        degradationPriority: flags[2] << 8 | flags[3]
-      };
-    };
-
-    var parseSampleFlags_1 = parseSampleFlags;
-
-    var trun = function trun(data) {
-      var result = {
-        version: data[0],
-        flags: new Uint8Array(data.subarray(1, 4)),
-        samples: []
-      },
-          view = new DataView(data.buffer, data.byteOffset, data.byteLength),
-          // Flag interpretation
-      dataOffsetPresent = result.flags[2] & 0x01,
-          // compare with 2nd byte of 0x1
-      firstSampleFlagsPresent = result.flags[2] & 0x04,
-          // compare with 2nd byte of 0x4
-      sampleDurationPresent = result.flags[1] & 0x01,
-          // compare with 2nd byte of 0x100
-      sampleSizePresent = result.flags[1] & 0x02,
-          // compare with 2nd byte of 0x200
-      sampleFlagsPresent = result.flags[1] & 0x04,
-          // compare with 2nd byte of 0x400
-      sampleCompositionTimeOffsetPresent = result.flags[1] & 0x08,
-          // compare with 2nd byte of 0x800
-      sampleCount = view.getUint32(4),
-          offset = 8,
-          sample;
-
-      if (dataOffsetPresent) {
-        // 32 bit signed integer
-        result.dataOffset = view.getInt32(offset);
-        offset += 4;
-      } // Overrides the flags for the first sample only. The order of
-      // optional values will be: duration, size, compositionTimeOffset
-
-
-      if (firstSampleFlagsPresent && sampleCount) {
-        sample = {
-          flags: parseSampleFlags_1(data.subarray(offset, offset + 4))
-        };
-        offset += 4;
-
-        if (sampleDurationPresent) {
-          sample.duration = view.getUint32(offset);
-          offset += 4;
+        for (let i = startIndex; i < endIndex; i++) {
+            durations += durationList[i].duration;
         }
-
-        if (sampleSizePresent) {
-          sample.size = view.getUint32(offset);
-          offset += 4;
-        }
-
-        if (sampleCompositionTimeOffsetPresent) {
-          if (result.version === 1) {
-            sample.compositionTimeOffset = view.getInt32(offset);
-          } else {
-            sample.compositionTimeOffset = view.getUint32(offset);
-          }
-
-          offset += 4;
-        }
-
-        result.samples.push(sample);
-        sampleCount--;
-      }
-
-      while (sampleCount--) {
-        sample = {};
-
-        if (sampleDurationPresent) {
-          sample.duration = view.getUint32(offset);
-          offset += 4;
-        }
-
-        if (sampleSizePresent) {
-          sample.size = view.getUint32(offset);
-          offset += 4;
-        }
-
-        if (sampleFlagsPresent) {
-          sample.flags = parseSampleFlags_1(data.subarray(offset, offset + 4));
-          offset += 4;
-        }
-
-        if (sampleCompositionTimeOffsetPresent) {
-          if (result.version === 1) {
-            sample.compositionTimeOffset = view.getInt32(offset);
-          } else {
-            sample.compositionTimeOffset = view.getUint32(offset);
-          }
-
-          offset += 4;
-        }
-
-        result.samples.push(sample);
-      }
-
-      return result;
-    };
-
-    var parseTrun = trun;
-
-    var tfhd = function tfhd(data) {
-      var view = new DataView(data.buffer, data.byteOffset, data.byteLength),
-          result = {
-        version: data[0],
-        flags: new Uint8Array(data.subarray(1, 4)),
-        trackId: view.getUint32(4)
-      },
-          baseDataOffsetPresent = result.flags[2] & 0x01,
-          sampleDescriptionIndexPresent = result.flags[2] & 0x02,
-          defaultSampleDurationPresent = result.flags[2] & 0x08,
-          defaultSampleSizePresent = result.flags[2] & 0x10,
-          defaultSampleFlagsPresent = result.flags[2] & 0x20,
-          durationIsEmpty = result.flags[0] & 0x010000,
-          defaultBaseIsMoof = result.flags[0] & 0x020000,
-          i;
-      i = 8;
-
-      if (baseDataOffsetPresent) {
-        i += 4; // truncate top 4 bytes
-        // FIXME: should we read the full 64 bits?
-
-        result.baseDataOffset = view.getUint32(12);
-        i += 4;
-      }
-
-      if (sampleDescriptionIndexPresent) {
-        result.sampleDescriptionIndex = view.getUint32(i);
-        i += 4;
-      }
-
-      if (defaultSampleDurationPresent) {
-        result.defaultSampleDuration = view.getUint32(i);
-        i += 4;
-      }
-
-      if (defaultSampleSizePresent) {
-        result.defaultSampleSize = view.getUint32(i);
-        i += 4;
-      }
-
-      if (defaultSampleFlagsPresent) {
-        result.defaultSampleFlags = view.getUint32(i);
-      }
-
-      if (durationIsEmpty) {
-        result.durationIsEmpty = true;
-      }
-
-      if (!baseDataOffsetPresent && defaultBaseIsMoof) {
-        result.baseDataOffsetIsMoof = true;
-      }
-
-      return result;
-    };
-
-    var parseTfhd = tfhd;
-    var commonjsGlobal = typeof globalThis !== 'undefined' ? globalThis : typeof window !== 'undefined' ? window : typeof global !== 'undefined' ? global : typeof self !== 'undefined' ? self : {};
-    var win;
-
-    if (typeof window !== "undefined") {
-      win = window;
-    } else if (typeof commonjsGlobal !== "undefined") {
-      win = commonjsGlobal;
-    } else if (typeof self !== "undefined") {
-      win = self;
-    } else {
-      win = {};
-    }
-
-    var window_1 = win;
-    var discardEmulationPreventionBytes = captionPacketParser.discardEmulationPreventionBytes;
-    var CaptionStream = captionStream.CaptionStream;
-    /**
-      * Maps an offset in the mdat to a sample based on the the size of the samples.
-      * Assumes that `parseSamples` has been called first.
-      *
-      * @param {Number} offset - The offset into the mdat
-      * @param {Object[]} samples - An array of samples, parsed using `parseSamples`
-      * @return {?Object} The matching sample, or null if no match was found.
-      *
-      * @see ISO-BMFF-12/2015, Section 8.8.8
-     **/
-
-    var mapToSample = function mapToSample(offset, samples) {
-      var approximateOffset = offset;
-
-      for (var i = 0; i < samples.length; i++) {
-        var sample = samples[i];
-
-        if (approximateOffset < sample.size) {
-          return sample;
-        }
-
-        approximateOffset -= sample.size;
-      }
-
-      return null;
+        return durations;
     };
     /**
-      * Finds SEI nal units contained in a Media Data Box.
-      * Assumes that `parseSamples` has been called first.
-      *
-      * @param {Uint8Array} avcStream - The bytes of the mdat
-      * @param {Object[]} samples - The samples parsed out by `parseSamples`
-      * @param {Number} trackId - The trackId of this video track
-      * @return {Object[]} seiNals - the parsed SEI NALUs found.
-      *   The contents of the seiNal should match what is expected by
-      *   CaptionStream.push (nalUnitType, size, data, escapedRBSP, pts, dts)
-      *
-      * @see ISO-BMFF-12/2015, Section 8.1.1
-      * @see Rec. ITU-T H.264, 7.3.2.3.1
-     **/
+     * Calculates the playlist end time
+     *
+     * @param {Object} playlist a media playlist object
+     * @param {number=} expired the amount of time that has
+     *                  dropped off the front of the playlist in a live scenario
+     * @param {boolean|false} useSafeLiveEnd a boolean value indicating whether or not the
+     *                        playlist end calculation should consider the safe live end
+     *                        (truncate the playlist end by three segments). This is normally
+     *                        used for calculating the end of the playlist's seekable range.
+     *                        This takes into account the value of liveEdgePadding.
+     *                        Setting liveEdgePadding to 0 is equivalent to setting this to false.
+     * @param {number} liveEdgePadding a number indicating how far from the end of the playlist we should be in seconds.
+     *                 If this is provided, it is used in the safe live end calculation.
+     *                 Setting useSafeLiveEnd=false or liveEdgePadding=0 are equivalent.
+     *                 Corresponds to suggestedPresentationDelay in DASH manifests.
+     * @return {number} the end time of playlist
+     * @function playlistEnd
+     */
 
-
-    var findSeiNals = function findSeiNals(avcStream, samples, trackId) {
-      var avcView = new DataView(avcStream.buffer, avcStream.byteOffset, avcStream.byteLength),
-          result = {
-        logs: [],
-        seiNals: []
-      },
-          seiNal,
-          i,
-          length,
-          lastMatchedSample;
-
-      for (i = 0; i + 4 < avcStream.length; i += length) {
-        length = avcView.getUint32(i);
-        i += 4; // Bail if this doesn't appear to be an H264 stream
-
-        if (length <= 0) {
-          continue;
+    const playlistEnd = function (playlist, expired, useSafeLiveEnd, liveEdgePadding) {
+        if (!playlist || !playlist.segments) {
+            return null;
         }
+        if (playlist.endList) {
+            return duration(playlist);
+        }
+        if (expired === null) {
+            return null;
+        }
+        expired = expired || 0;
+        let lastSegmentEndTime = intervalDuration(playlist, playlist.mediaSequence + playlist.segments.length, expired);
+        if (useSafeLiveEnd) {
+            liveEdgePadding = typeof liveEdgePadding === 'number' ? liveEdgePadding : liveEdgeDelay(null, playlist);
+            lastSegmentEndTime -= liveEdgePadding;
+        } // don't return a time less than zero
 
-        switch (avcStream[i] & 0x1F) {
-          case 0x06:
-            var data = avcStream.subarray(i + 1, i + 1 + length);
-            var matchingSample = mapToSample(i, samples);
-            seiNal = {
-              nalUnitType: 'sei_rbsp',
-              size: length,
-              data: data,
-              escapedRBSP: discardEmulationPreventionBytes(data),
-              trackId: trackId
-            };
+        return Math.max(0, lastSegmentEndTime);
+    };
+    /**
+     * Calculates the interval of time that is currently seekable in a
+     * playlist. The returned time ranges are relative to the earliest
+     * moment in the specified playlist that is still available. A full
+     * seekable implementation for live streams would need to offset
+     * these values by the duration of content that has expired from the
+     * stream.
+     *
+     * @param {Object} playlist a media playlist object
+     * dropped off the front of the playlist in a live scenario
+     * @param {number=} expired the amount of time that has
+     * dropped off the front of the playlist in a live scenario
+     * @param {number} liveEdgePadding how far from the end of the playlist we should be in seconds.
+     *        Corresponds to suggestedPresentationDelay in DASH manifests.
+     * @return {TimeRanges} the periods of time that are valid targets
+     * for seeking
+     */
 
-            if (matchingSample) {
-              seiNal.pts = matchingSample.pts;
-              seiNal.dts = matchingSample.dts;
-              lastMatchedSample = matchingSample;
-            } else if (lastMatchedSample) {
-              // If a matching sample cannot be found, use the last
-              // sample's values as they should be as close as possible
-              seiNal.pts = lastMatchedSample.pts;
-              seiNal.dts = lastMatchedSample.dts;
-            } else {
-              result.logs.push({
-                level: 'warn',
-                message: 'We\'ve encountered a nal unit without data at ' + i + ' for trackId ' + trackId + '. See mux.js#223.'
-              });
-              break;
+    const seekable = function (playlist, expired, liveEdgePadding) {
+        const useSafeLiveEnd = true;
+        const seekableStart = expired || 0;
+        const seekableEnd = playlistEnd(playlist, expired, useSafeLiveEnd, liveEdgePadding);
+        if (seekableEnd === null) {
+            return createTimeRanges();
+        }
+        return createTimeRanges(seekableStart, seekableEnd);
+    };
+    /**
+     * Determine the index and estimated starting time of the segment that
+     * contains a specified playback position in a media playlist.
+     *
+     * @param {Object} options.playlist the media playlist to query
+     * @param {number} options.currentTime The number of seconds since the earliest
+     * possible position to determine the containing segment for
+     * @param {number} options.startTime the time when the segment/part starts
+     * @param {number} options.startingSegmentIndex the segment index to start looking at.
+     * @param {number?} [options.startingPartIndex] the part index to look at within the segment.
+     *
+     * @return {Object} an object with partIndex, segmentIndex, and startTime.
+     */
+
+    const getMediaInfoForTime = function ({
+                                              playlist,
+                                              currentTime,
+                                              startingSegmentIndex,
+                                              startingPartIndex,
+                                              startTime,
+                                              exactManifestTimings
+                                          }) {
+        let time = currentTime - startTime;
+        const partsAndSegments = getPartsAndSegments(playlist);
+        let startIndex = 0;
+        for (let i = 0; i < partsAndSegments.length; i++) {
+            const partAndSegment = partsAndSegments[i];
+            if (startingSegmentIndex !== partAndSegment.segmentIndex) {
+                continue;
+            } // skip this if part index does not match.
+
+            if (typeof startingPartIndex === 'number' && typeof partAndSegment.partIndex === 'number' && startingPartIndex !== partAndSegment.partIndex) {
+                continue;
             }
-
-            result.seiNals.push(seiNal);
+            startIndex = i;
             break;
         }
-      }
-
-      return result;
-    };
-    /**
-      * Parses sample information out of Track Run Boxes and calculates
-      * the absolute presentation and decode timestamps of each sample.
-      *
-      * @param {Array<Uint8Array>} truns - The Trun Run boxes to be parsed
-      * @param {Number|BigInt} baseMediaDecodeTime - base media decode time from tfdt
-          @see ISO-BMFF-12/2015, Section 8.8.12
-      * @param {Object} tfhd - The parsed Track Fragment Header
-      *   @see inspect.parseTfhd
-      * @return {Object[]} the parsed samples
-      *
-      * @see ISO-BMFF-12/2015, Section 8.8.8
-     **/
-
-
-    var parseSamples = function parseSamples(truns, baseMediaDecodeTime, tfhd) {
-      var currentDts = baseMediaDecodeTime;
-      var defaultSampleDuration = tfhd.defaultSampleDuration || 0;
-      var defaultSampleSize = tfhd.defaultSampleSize || 0;
-      var trackId = tfhd.trackId;
-      var allSamples = [];
-      truns.forEach(function (trun) {
-        // Note: We currently do not parse the sample table as well
-        // as the trun. It's possible some sources will require this.
-        // moov > trak > mdia > minf > stbl
-        var trackRun = parseTrun(trun);
-        var samples = trackRun.samples;
-        samples.forEach(function (sample) {
-          if (sample.duration === undefined) {
-            sample.duration = defaultSampleDuration;
-          }
-
-          if (sample.size === undefined) {
-            sample.size = defaultSampleSize;
-          }
-
-          sample.trackId = trackId;
-          sample.dts = currentDts;
-
-          if (sample.compositionTimeOffset === undefined) {
-            sample.compositionTimeOffset = 0;
-          }
-
-          if (typeof currentDts === 'bigint') {
-            sample.pts = currentDts + window_1.BigInt(sample.compositionTimeOffset);
-            currentDts += window_1.BigInt(sample.duration);
-          } else {
-            sample.pts = currentDts + sample.compositionTimeOffset;
-            currentDts += sample.duration;
-          }
-        });
-        allSamples = allSamples.concat(samples);
-      });
-      return allSamples;
-    };
-    /**
-      * Parses out caption nals from an FMP4 segment's video tracks.
-      *
-      * @param {Uint8Array} segment - The bytes of a single segment
-      * @param {Number} videoTrackId - The trackId of a video track in the segment
-      * @return {Object.<Number, Object[]>} A mapping of video trackId to
-      *   a list of seiNals found in that track
-     **/
-
-
-    var parseCaptionNals = function parseCaptionNals(segment, videoTrackId) {
-      // To get the samples
-      var trafs = findBox_1(segment, ['moof', 'traf']); // To get SEI NAL units
-
-      var mdats = findBox_1(segment, ['mdat']);
-      var captionNals = {};
-      var mdatTrafPairs = []; // Pair up each traf with a mdat as moofs and mdats are in pairs
-
-      mdats.forEach(function (mdat, index) {
-        var matchingTraf = trafs[index];
-        mdatTrafPairs.push({
-          mdat: mdat,
-          traf: matchingTraf
-        });
-      });
-      mdatTrafPairs.forEach(function (pair) {
-        var mdat = pair.mdat;
-        var traf = pair.traf;
-        var tfhd = findBox_1(traf, ['tfhd']); // Exactly 1 tfhd per traf
-
-        var headerInfo = parseTfhd(tfhd[0]);
-        var trackId = headerInfo.trackId;
-        var tfdt = findBox_1(traf, ['tfdt']); // Either 0 or 1 tfdt per traf
-
-        var baseMediaDecodeTime = tfdt.length > 0 ? parseTfdt(tfdt[0]).baseMediaDecodeTime : 0;
-        var truns = findBox_1(traf, ['trun']);
-        var samples;
-        var result; // Only parse video data for the chosen video track
-
-        if (videoTrackId === trackId && truns.length > 0) {
-          samples = parseSamples(truns, baseMediaDecodeTime, headerInfo);
-          result = findSeiNals(mdat, samples, trackId);
-
-          if (!captionNals[trackId]) {
-            captionNals[trackId] = {
-              seiNals: [],
-              logs: []
-            };
-          }
-
-          captionNals[trackId].seiNals = captionNals[trackId].seiNals.concat(result.seiNals);
-          captionNals[trackId].logs = captionNals[trackId].logs.concat(result.logs);
-        }
-      });
-      return captionNals;
-    };
-    /**
-      * Parses out inband captions from an MP4 container and returns
-      * caption objects that can be used by WebVTT and the TextTrack API.
-      * @see https://developer.mozilla.org/en-US/docs/Web/API/VTTCue
-      * @see https://developer.mozilla.org/en-US/docs/Web/API/TextTrack
-      * Assumes that `probe.getVideoTrackIds` and `probe.timescale` have been called first
-      *
-      * @param {Uint8Array} segment - The fmp4 segment containing embedded captions
-      * @param {Number} trackId - The id of the video track to parse
-      * @param {Number} timescale - The timescale for the video track from the init segment
-      *
-      * @return {?Object[]} parsedCaptions - A list of captions or null if no video tracks
-      * @return {Number} parsedCaptions[].startTime - The time to show the caption in seconds
-      * @return {Number} parsedCaptions[].endTime - The time to stop showing the caption in seconds
-      * @return {String} parsedCaptions[].text - The visible content of the caption
-     **/
-
-
-    var parseEmbeddedCaptions = function parseEmbeddedCaptions(segment, trackId, timescale) {
-      var captionNals; // the ISO-BMFF spec says that trackId can't be zero, but there's some broken content out there
-
-      if (trackId === null) {
-        return null;
-      }
-
-      captionNals = parseCaptionNals(segment, trackId);
-      var trackNals = captionNals[trackId] || {};
-      return {
-        seiNals: trackNals.seiNals,
-        logs: trackNals.logs,
-        timescale: timescale
-      };
-    };
-    /**
-      * Converts SEI NALUs into captions that can be used by video.js
-     **/
-
-
-    var CaptionParser = function CaptionParser() {
-      var isInitialized = false;
-      var captionStream; // Stores segments seen before trackId and timescale are set
-
-      var segmentCache; // Stores video track ID of the track being parsed
-
-      var trackId; // Stores the timescale of the track being parsed
-
-      var timescale; // Stores captions parsed so far
-
-      var parsedCaptions; // Stores whether we are receiving partial data or not
-
-      var parsingPartial;
-      /**
-        * A method to indicate whether a CaptionParser has been initalized
-        * @returns {Boolean}
-       **/
-
-      this.isInitialized = function () {
-        return isInitialized;
-      };
-      /**
-        * Initializes the underlying CaptionStream, SEI NAL parsing
-        * and management, and caption collection
-       **/
-
-
-      this.init = function (options) {
-        captionStream = new CaptionStream();
-        isInitialized = true;
-        parsingPartial = options ? options.isPartial : false; // Collect dispatched captions
-
-        captionStream.on('data', function (event) {
-          // Convert to seconds in the source's timescale
-          event.startTime = event.startPts / timescale;
-          event.endTime = event.endPts / timescale;
-          parsedCaptions.captions.push(event);
-          parsedCaptions.captionStreams[event.stream] = true;
-        });
-        captionStream.on('log', function (log) {
-          parsedCaptions.logs.push(log);
-        });
-      };
-      /**
-        * Determines if a new video track will be selected
-        * or if the timescale changed
-        * @return {Boolean}
-       **/
-
-
-      this.isNewInit = function (videoTrackIds, timescales) {
-        if (videoTrackIds && videoTrackIds.length === 0 || timescales && typeof timescales === 'object' && Object.keys(timescales).length === 0) {
-          return false;
-        }
-
-        return trackId !== videoTrackIds[0] || timescale !== timescales[trackId];
-      };
-      /**
-        * Parses out SEI captions and interacts with underlying
-        * CaptionStream to return dispatched captions
-        *
-        * @param {Uint8Array} segment - The fmp4 segment containing embedded captions
-        * @param {Number[]} videoTrackIds - A list of video tracks found in the init segment
-        * @param {Object.<Number, Number>} timescales - The timescales found in the init segment
-        * @see parseEmbeddedCaptions
-        * @see m2ts/caption-stream.js
-       **/
-
-
-      this.parse = function (segment, videoTrackIds, timescales) {
-        var parsedData;
-
-        if (!this.isInitialized()) {
-          return null; // This is not likely to be a video segment
-        } else if (!videoTrackIds || !timescales) {
-          return null;
-        } else if (this.isNewInit(videoTrackIds, timescales)) {
-          // Use the first video track only as there is no
-          // mechanism to switch to other video tracks
-          trackId = videoTrackIds[0];
-          timescale = timescales[trackId]; // If an init segment has not been seen yet, hold onto segment
-          // data until we have one.
-          // the ISO-BMFF spec says that trackId can't be zero, but there's some broken content out there
-        } else if (trackId === null || !timescale) {
-          segmentCache.push(segment);
-          return null;
-        } // Now that a timescale and trackId is set, parse cached segments
-
-
-        while (segmentCache.length > 0) {
-          var cachedSegment = segmentCache.shift();
-          this.parse(cachedSegment, videoTrackIds, timescales);
-        }
-
-        parsedData = parseEmbeddedCaptions(segment, trackId, timescale);
-
-        if (parsedData && parsedData.logs) {
-          parsedCaptions.logs = parsedCaptions.logs.concat(parsedData.logs);
-        }
-
-        if (parsedData === null || !parsedData.seiNals) {
-          if (parsedCaptions.logs.length) {
-            return {
-              logs: parsedCaptions.logs,
-              captions: [],
-              captionStreams: []
-            };
-          }
-
-          return null;
-        }
-
-        this.pushNals(parsedData.seiNals); // Force the parsed captions to be dispatched
-
-        this.flushStream();
-        return parsedCaptions;
-      };
-      /**
-        * Pushes SEI NALUs onto CaptionStream
-        * @param {Object[]} nals - A list of SEI nals parsed using `parseCaptionNals`
-        * Assumes that `parseCaptionNals` has been called first
-        * @see m2ts/caption-stream.js
-        **/
-
-
-      this.pushNals = function (nals) {
-        if (!this.isInitialized() || !nals || nals.length === 0) {
-          return null;
-        }
-
-        nals.forEach(function (nal) {
-          captionStream.push(nal);
-        });
-      };
-      /**
-        * Flushes underlying CaptionStream to dispatch processed, displayable captions
-        * @see m2ts/caption-stream.js
-       **/
-
-
-      this.flushStream = function () {
-        if (!this.isInitialized()) {
-          return null;
-        }
-
-        if (!parsingPartial) {
-          captionStream.flush();
-        } else {
-          captionStream.partialFlush();
-        }
-      };
-      /**
-        * Reset caption buckets for new data
-       **/
-
-
-      this.clearParsedCaptions = function () {
-        parsedCaptions.captions = [];
-        parsedCaptions.captionStreams = {};
-        parsedCaptions.logs = [];
-      };
-      /**
-        * Resets underlying CaptionStream
-        * @see m2ts/caption-stream.js
-       **/
-
-
-      this.resetCaptionStream = function () {
-        if (!this.isInitialized()) {
-          return null;
-        }
-
-        captionStream.reset();
-      };
-      /**
-        * Convenience method to clear all captions flushed from the
-        * CaptionStream and still being parsed
-        * @see m2ts/caption-stream.js
-       **/
-
-
-      this.clearAllCaptions = function () {
-        this.clearParsedCaptions();
-        this.resetCaptionStream();
-      };
-      /**
-        * Reset caption parser
-       **/
-
-
-      this.reset = function () {
-        segmentCache = [];
-        trackId = null;
-        timescale = null;
-
-        if (!parsedCaptions) {
-          parsedCaptions = {
-            captions: [],
-            // CC1, CC2, CC3, CC4
-            captionStreams: {},
-            logs: []
-          };
-        } else {
-          this.clearParsedCaptions();
-        }
-
-        this.resetCaptionStream();
-      };
-
-      this.reset();
-    };
-
-    var captionParser = CaptionParser;
-    var toUnsigned = bin.toUnsigned;
-    var toHexString = bin.toHexString;
-    var getUint64 = numbers.getUint64;
-    var timescale, startTime, compositionStartTime, getVideoTrackIds, getTracks, getTimescaleFromMediaHeader;
-    /**
-     * Parses an MP4 initialization segment and extracts the timescale
-     * values for any declared tracks. Timescale values indicate the
-     * number of clock ticks per second to assume for time-based values
-     * elsewhere in the MP4.
-     *
-     * To determine the start time of an MP4, you need two pieces of
-     * information: the timescale unit and the earliest base media decode
-     * time. Multiple timescales can be specified within an MP4 but the
-     * base media decode time is always expressed in the timescale from
-     * the media header box for the track:
-     * ```
-     * moov > trak > mdia > mdhd.timescale
-     * ```
-     * @param init {Uint8Array} the bytes of the init segment
-     * @return {object} a hash of track ids to timescale values or null if
-     * the init segment is malformed.
-     */
-
-    timescale = function timescale(init) {
-      var result = {},
-          traks = findBox_1(init, ['moov', 'trak']); // mdhd timescale
-
-      return traks.reduce(function (result, trak) {
-        var tkhd, version, index, id, mdhd;
-        tkhd = findBox_1(trak, ['tkhd'])[0];
-
-        if (!tkhd) {
-          return null;
-        }
-
-        version = tkhd[0];
-        index = version === 0 ? 12 : 20;
-        id = toUnsigned(tkhd[index] << 24 | tkhd[index + 1] << 16 | tkhd[index + 2] << 8 | tkhd[index + 3]);
-        mdhd = findBox_1(trak, ['mdia', 'mdhd'])[0];
-
-        if (!mdhd) {
-          return null;
-        }
-
-        version = mdhd[0];
-        index = version === 0 ? 12 : 20;
-        result[id] = toUnsigned(mdhd[index] << 24 | mdhd[index + 1] << 16 | mdhd[index + 2] << 8 | mdhd[index + 3]);
-        return result;
-      }, result);
-    };
-    /**
-     * Determine the base media decode start time, in seconds, for an MP4
-     * fragment. If multiple fragments are specified, the earliest time is
-     * returned.
-     *
-     * The base media decode time can be parsed from track fragment
-     * metadata:
-     * ```
-     * moof > traf > tfdt.baseMediaDecodeTime
-     * ```
-     * It requires the timescale value from the mdhd to interpret.
-     *
-     * @param timescale {object} a hash of track ids to timescale values.
-     * @return {number} the earliest base media decode start time for the
-     * fragment, in seconds
-     */
-
-
-    startTime = function startTime(timescale, fragment) {
-      var trafs; // we need info from two childrend of each track fragment box
-
-      trafs = findBox_1(fragment, ['moof', 'traf']); // determine the start times for each track
-
-      var lowestTime = trafs.reduce(function (acc, traf) {
-        var tfhd = findBox_1(traf, ['tfhd'])[0]; // get the track id from the tfhd
-
-        var id = toUnsigned(tfhd[4] << 24 | tfhd[5] << 16 | tfhd[6] << 8 | tfhd[7]); // assume a 90kHz clock if no timescale was specified
-
-        var scale = timescale[id] || 90e3; // get the base media decode time from the tfdt
-
-        var tfdt = findBox_1(traf, ['tfdt'])[0];
-        var dv = new DataView(tfdt.buffer, tfdt.byteOffset, tfdt.byteLength);
-        var baseTime; // version 1 is 64 bit
-
-        if (tfdt[0] === 1) {
-          baseTime = getUint64(tfdt.subarray(4, 12));
-        } else {
-          baseTime = dv.getUint32(4);
-        } // convert base time to seconds if it is a valid number.
-
-
-        var seconds;
-
-        if (typeof baseTime === 'bigint') {
-          seconds = baseTime / window_1.BigInt(scale);
-        } else if (typeof baseTime === 'number' && !isNaN(baseTime)) {
-          seconds = baseTime / scale;
-        }
-
-        if (seconds < Number.MAX_SAFE_INTEGER) {
-          seconds = Number(seconds);
-        }
-
-        if (seconds < acc) {
-          acc = seconds;
-        }
-
-        return acc;
-      }, Infinity);
-      return typeof lowestTime === 'bigint' || isFinite(lowestTime) ? lowestTime : 0;
-    };
-    /**
-     * Determine the composition start, in seconds, for an MP4
-     * fragment.
-     *
-     * The composition start time of a fragment can be calculated using the base
-     * media decode time, composition time offset, and timescale, as follows:
-     *
-     * compositionStartTime = (baseMediaDecodeTime + compositionTimeOffset) / timescale
-     *
-     * All of the aforementioned information is contained within a media fragment's
-     * `traf` box, except for timescale info, which comes from the initialization
-     * segment, so a track id (also contained within a `traf`) is also necessary to
-     * associate it with a timescale
-     *
-     *
-     * @param timescales {object} - a hash of track ids to timescale values.
-     * @param fragment {Unit8Array} - the bytes of a media segment
-     * @return {number} the composition start time for the fragment, in seconds
-     **/
-
-
-    compositionStartTime = function compositionStartTime(timescales, fragment) {
-      var trafBoxes = findBox_1(fragment, ['moof', 'traf']);
-      var baseMediaDecodeTime = 0;
-      var compositionTimeOffset = 0;
-      var trackId;
-
-      if (trafBoxes && trafBoxes.length) {
-        // The spec states that track run samples contained within a `traf` box are contiguous, but
-        // it does not explicitly state whether the `traf` boxes themselves are contiguous.
-        // We will assume that they are, so we only need the first to calculate start time.
-        var tfhd = findBox_1(trafBoxes[0], ['tfhd'])[0];
-        var trun = findBox_1(trafBoxes[0], ['trun'])[0];
-        var tfdt = findBox_1(trafBoxes[0], ['tfdt'])[0];
-
-        if (tfhd) {
-          var parsedTfhd = parseTfhd(tfhd);
-          trackId = parsedTfhd.trackId;
-        }
-
-        if (tfdt) {
-          var parsedTfdt = parseTfdt(tfdt);
-          baseMediaDecodeTime = parsedTfdt.baseMediaDecodeTime;
-        }
-
-        if (trun) {
-          var parsedTrun = parseTrun(trun);
-
-          if (parsedTrun.samples && parsedTrun.samples.length) {
-            compositionTimeOffset = parsedTrun.samples[0].compositionTimeOffset || 0;
-          }
-        }
-      } // Get timescale for this specific track. Assume a 90kHz clock if no timescale was
-      // specified.
-
-
-      var timescale = timescales[trackId] || 90e3; // return the composition start time, in seconds
-
-      if (typeof baseMediaDecodeTime === 'bigint') {
-        compositionTimeOffset = window_1.BigInt(compositionTimeOffset);
-        timescale = window_1.BigInt(timescale);
-      }
-
-      var result = (baseMediaDecodeTime + compositionTimeOffset) / timescale;
-
-      if (typeof result === 'bigint' && result < Number.MAX_SAFE_INTEGER) {
-        result = Number(result);
-      }
-
-      return result;
-    };
-    /**
-      * Find the trackIds of the video tracks in this source.
-      * Found by parsing the Handler Reference and Track Header Boxes:
-      *   moov > trak > mdia > hdlr
-      *   moov > trak > tkhd
-      *
-      * @param {Uint8Array} init - The bytes of the init segment for this source
-      * @return {Number[]} A list of trackIds
-      *
-      * @see ISO-BMFF-12/2015, Section 8.4.3
-     **/
-
-
-    getVideoTrackIds = function getVideoTrackIds(init) {
-      var traks = findBox_1(init, ['moov', 'trak']);
-      var videoTrackIds = [];
-      traks.forEach(function (trak) {
-        var hdlrs = findBox_1(trak, ['mdia', 'hdlr']);
-        var tkhds = findBox_1(trak, ['tkhd']);
-        hdlrs.forEach(function (hdlr, index) {
-          var handlerType = parseType_1(hdlr.subarray(8, 12));
-          var tkhd = tkhds[index];
-          var view;
-          var version;
-          var trackId;
-
-          if (handlerType === 'vide') {
-            view = new DataView(tkhd.buffer, tkhd.byteOffset, tkhd.byteLength);
-            version = view.getUint8(0);
-            trackId = version === 0 ? view.getUint32(12) : view.getUint32(20);
-            videoTrackIds.push(trackId);
-          }
-        });
-      });
-      return videoTrackIds;
-    };
-
-    getTimescaleFromMediaHeader = function getTimescaleFromMediaHeader(mdhd) {
-      // mdhd is a FullBox, meaning it will have its own version as the first byte
-      var version = mdhd[0];
-      var index = version === 0 ? 12 : 20;
-      return toUnsigned(mdhd[index] << 24 | mdhd[index + 1] << 16 | mdhd[index + 2] << 8 | mdhd[index + 3]);
-    };
-    /**
-     * Get all the video, audio, and hint tracks from a non fragmented
-     * mp4 segment
-     */
-
-
-    getTracks = function getTracks(init) {
-      var traks = findBox_1(init, ['moov', 'trak']);
-      var tracks = [];
-      traks.forEach(function (trak) {
-        var track = {};
-        var tkhd = findBox_1(trak, ['tkhd'])[0];
-        var view, tkhdVersion; // id
-
-        if (tkhd) {
-          view = new DataView(tkhd.buffer, tkhd.byteOffset, tkhd.byteLength);
-          tkhdVersion = view.getUint8(0);
-          track.id = tkhdVersion === 0 ? view.getUint32(12) : view.getUint32(20);
-        }
-
-        var hdlr = findBox_1(trak, ['mdia', 'hdlr'])[0]; // type
-
-        if (hdlr) {
-          var type = parseType_1(hdlr.subarray(8, 12));
-
-          if (type === 'vide') {
-            track.type = 'video';
-          } else if (type === 'soun') {
-            track.type = 'audio';
-          } else {
-            track.type = type;
-          }
-        } // codec
-
-
-        var stsd = findBox_1(trak, ['mdia', 'minf', 'stbl', 'stsd'])[0];
-
-        if (stsd) {
-          var sampleDescriptions = stsd.subarray(8); // gives the codec type string
-
-          track.codec = parseType_1(sampleDescriptions.subarray(4, 8));
-          var codecBox = findBox_1(sampleDescriptions, [track.codec])[0];
-          var codecConfig, codecConfigType;
-
-          if (codecBox) {
-            // https://tools.ietf.org/html/rfc6381#section-3.3
-            if (/^[asm]vc[1-9]$/i.test(track.codec)) {
-              // we don't need anything but the "config" parameter of the
-              // avc1 codecBox
-              codecConfig = codecBox.subarray(78);
-              codecConfigType = parseType_1(codecConfig.subarray(4, 8));
-
-              if (codecConfigType === 'avcC' && codecConfig.length > 11) {
-                track.codec += '.'; // left padded with zeroes for single digit hex
-                // profile idc
-
-                track.codec += toHexString(codecConfig[9]); // the byte containing the constraint_set flags
-
-                track.codec += toHexString(codecConfig[10]); // level idc
-
-                track.codec += toHexString(codecConfig[11]);
-              } else {
-                // TODO: show a warning that we couldn't parse the codec
-                // and are using the default
-                track.codec = 'avc1.4d400d';
-              }
-            } else if (/^mp4[a,v]$/i.test(track.codec)) {
-              // we do not need anything but the streamDescriptor of the mp4a codecBox
-              codecConfig = codecBox.subarray(28);
-              codecConfigType = parseType_1(codecConfig.subarray(4, 8));
-
-              if (codecConfigType === 'esds' && codecConfig.length > 20 && codecConfig[19] !== 0) {
-                track.codec += '.' + toHexString(codecConfig[19]); // this value is only a single digit
-
-                track.codec += '.' + toHexString(codecConfig[20] >>> 2 & 0x3f).replace(/^0/, '');
-              } else {
-                // TODO: show a warning that we couldn't parse the codec
-                // and are using the default
-                track.codec = 'mp4a.40.2';
-              }
-            } else {
-              // flac, opus, etc
-              track.codec = track.codec.toLowerCase();
-            }
-          }
-        }
-
-        var mdhd = findBox_1(trak, ['mdia', 'mdhd'])[0];
-
-        if (mdhd) {
-          track.timescale = getTimescaleFromMediaHeader(mdhd);
-        }
-
-        tracks.push(track);
-      });
-      return tracks;
-    };
-
-    var probe$2 = {
-      // export mp4 inspector's findBox and parseType for backwards compatibility
-      findBox: findBox_1,
-      parseType: parseType_1,
-      timescale: timescale,
-      startTime: startTime,
-      compositionStartTime: compositionStartTime,
-      videoTrackIds: getVideoTrackIds,
-      tracks: getTracks,
-      getTimescaleFromMediaHeader: getTimescaleFromMediaHeader
-    };
-
-    var parsePid = function parsePid(packet) {
-      var pid = packet[1] & 0x1f;
-      pid <<= 8;
-      pid |= packet[2];
-      return pid;
-    };
-
-    var parsePayloadUnitStartIndicator = function parsePayloadUnitStartIndicator(packet) {
-      return !!(packet[1] & 0x40);
-    };
-
-    var parseAdaptionField = function parseAdaptionField(packet) {
-      var offset = 0; // if an adaption field is present, its length is specified by the
-      // fifth byte of the TS packet header. The adaptation field is
-      // used to add stuffing to PES packets that don't fill a complete
-      // TS packet, and to specify some forms of timing and control data
-      // that we do not currently use.
-
-      if ((packet[3] & 0x30) >>> 4 > 0x01) {
-        offset += packet[4] + 1;
-      }
-
-      return offset;
-    };
-
-    var parseType = function parseType(packet, pmtPid) {
-      var pid = parsePid(packet);
-
-      if (pid === 0) {
-        return 'pat';
-      } else if (pid === pmtPid) {
-        return 'pmt';
-      } else if (pmtPid) {
-        return 'pes';
-      }
-
-      return null;
-    };
-
-    var parsePat = function parsePat(packet) {
-      var pusi = parsePayloadUnitStartIndicator(packet);
-      var offset = 4 + parseAdaptionField(packet);
-
-      if (pusi) {
-        offset += packet[offset] + 1;
-      }
-
-      return (packet[offset + 10] & 0x1f) << 8 | packet[offset + 11];
-    };
-
-    var parsePmt = function parsePmt(packet) {
-      var programMapTable = {};
-      var pusi = parsePayloadUnitStartIndicator(packet);
-      var payloadOffset = 4 + parseAdaptionField(packet);
-
-      if (pusi) {
-        payloadOffset += packet[payloadOffset] + 1;
-      } // PMTs can be sent ahead of the time when they should actually
-      // take effect. We don't believe this should ever be the case
-      // for HLS but we'll ignore "forward" PMT declarations if we see
-      // them. Future PMT declarations have the current_next_indicator
-      // set to zero.
-
-
-      if (!(packet[payloadOffset + 5] & 0x01)) {
-        return;
-      }
-
-      var sectionLength, tableEnd, programInfoLength; // the mapping table ends at the end of the current section
-
-      sectionLength = (packet[payloadOffset + 1] & 0x0f) << 8 | packet[payloadOffset + 2];
-      tableEnd = 3 + sectionLength - 4; // to determine where the table is, we have to figure out how
-      // long the program info descriptors are
-
-      programInfoLength = (packet[payloadOffset + 10] & 0x0f) << 8 | packet[payloadOffset + 11]; // advance the offset to the first entry in the mapping table
-
-      var offset = 12 + programInfoLength;
-
-      while (offset < tableEnd) {
-        var i = payloadOffset + offset; // add an entry that maps the elementary_pid to the stream_type
-
-        programMapTable[(packet[i + 1] & 0x1F) << 8 | packet[i + 2]] = packet[i]; // move to the next table entry
-        // skip past the elementary stream descriptors, if present
-
-        offset += ((packet[i + 3] & 0x0F) << 8 | packet[i + 4]) + 5;
-      }
-
-      return programMapTable;
-    };
-
-    var parsePesType = function parsePesType(packet, programMapTable) {
-      var pid = parsePid(packet);
-      var type = programMapTable[pid];
-
-      switch (type) {
-        case streamTypes.H264_STREAM_TYPE:
-          return 'video';
-
-        case streamTypes.ADTS_STREAM_TYPE:
-          return 'audio';
-
-        case streamTypes.METADATA_STREAM_TYPE:
-          return 'timed-metadata';
-
-        default:
-          return null;
-      }
-    };
-
-    var parsePesTime = function parsePesTime(packet) {
-      var pusi = parsePayloadUnitStartIndicator(packet);
-
-      if (!pusi) {
-        return null;
-      }
-
-      var offset = 4 + parseAdaptionField(packet);
-
-      if (offset >= packet.byteLength) {
-        // From the H 222.0 MPEG-TS spec
-        // "For transport stream packets carrying PES packets, stuffing is needed when there
-        //  is insufficient PES packet data to completely fill the transport stream packet
-        //  payload bytes. Stuffing is accomplished by defining an adaptation field longer than
-        //  the sum of the lengths of the data elements in it, so that the payload bytes
-        //  remaining after the adaptation field exactly accommodates the available PES packet
-        //  data."
-        //
-        // If the offset is >= the length of the packet, then the packet contains no data
-        // and instead is just adaption field stuffing bytes
-        return null;
-      }
-
-      var pes = null;
-      var ptsDtsFlags; // PES packets may be annotated with a PTS value, or a PTS value
-      // and a DTS value. Determine what combination of values is
-      // available to work with.
-
-      ptsDtsFlags = packet[offset + 7]; // PTS and DTS are normally stored as a 33-bit number.  Javascript
-      // performs all bitwise operations on 32-bit integers but javascript
-      // supports a much greater range (52-bits) of integer using standard
-      // mathematical operations.
-      // We construct a 31-bit value using bitwise operators over the 31
-      // most significant bits and then multiply by 4 (equal to a left-shift
-      // of 2) before we add the final 2 least significant bits of the
-      // timestamp (equal to an OR.)
-
-      if (ptsDtsFlags & 0xC0) {
-        pes = {}; // the PTS and DTS are not written out directly. For information
-        // on how they are encoded, see
-        // http://dvd.sourceforge.net/dvdinfo/pes-hdr.html
-
-        pes.pts = (packet[offset + 9] & 0x0E) << 27 | (packet[offset + 10] & 0xFF) << 20 | (packet[offset + 11] & 0xFE) << 12 | (packet[offset + 12] & 0xFF) << 5 | (packet[offset + 13] & 0xFE) >>> 3;
-        pes.pts *= 4; // Left shift by 2
-
-        pes.pts += (packet[offset + 13] & 0x06) >>> 1; // OR by the two LSBs
-
-        pes.dts = pes.pts;
-
-        if (ptsDtsFlags & 0x40) {
-          pes.dts = (packet[offset + 14] & 0x0E) << 27 | (packet[offset + 15] & 0xFF) << 20 | (packet[offset + 16] & 0xFE) << 12 | (packet[offset + 17] & 0xFF) << 5 | (packet[offset + 18] & 0xFE) >>> 3;
-          pes.dts *= 4; // Left shift by 2
-
-          pes.dts += (packet[offset + 18] & 0x06) >>> 1; // OR by the two LSBs
-        }
-      }
-
-      return pes;
-    };
-
-    var parseNalUnitType = function parseNalUnitType(type) {
-      switch (type) {
-        case 0x05:
-          return 'slice_layer_without_partitioning_rbsp_idr';
-
-        case 0x06:
-          return 'sei_rbsp';
-
-        case 0x07:
-          return 'seq_parameter_set_rbsp';
-
-        case 0x08:
-          return 'pic_parameter_set_rbsp';
-
-        case 0x09:
-          return 'access_unit_delimiter_rbsp';
-
-        default:
-          return null;
-      }
-    };
-
-    var videoPacketContainsKeyFrame = function videoPacketContainsKeyFrame(packet) {
-      var offset = 4 + parseAdaptionField(packet);
-      var frameBuffer = packet.subarray(offset);
-      var frameI = 0;
-      var frameSyncPoint = 0;
-      var foundKeyFrame = false;
-      var nalType; // advance the sync point to a NAL start, if necessary
-
-      for (; frameSyncPoint < frameBuffer.byteLength - 3; frameSyncPoint++) {
-        if (frameBuffer[frameSyncPoint + 2] === 1) {
-          // the sync point is properly aligned
-          frameI = frameSyncPoint + 5;
-          break;
-        }
-      }
-
-      while (frameI < frameBuffer.byteLength) {
-        // look at the current byte to determine if we've hit the end of
-        // a NAL unit boundary
-        switch (frameBuffer[frameI]) {
-          case 0:
-            // skip past non-sync sequences
-            if (frameBuffer[frameI - 1] !== 0) {
-              frameI += 2;
-              break;
-            } else if (frameBuffer[frameI - 2] !== 0) {
-              frameI++;
-              break;
-            }
-
-            if (frameSyncPoint + 3 !== frameI - 2) {
-              nalType = parseNalUnitType(frameBuffer[frameSyncPoint + 3] & 0x1f);
-
-              if (nalType === 'slice_layer_without_partitioning_rbsp_idr') {
-                foundKeyFrame = true;
-              }
-            } // drop trailing zeroes
-
-
-            do {
-              frameI++;
-            } while (frameBuffer[frameI] !== 1 && frameI < frameBuffer.length);
-
-            frameSyncPoint = frameI - 2;
-            frameI += 3;
-            break;
-
-          case 1:
-            // skip past non-sync sequences
-            if (frameBuffer[frameI - 1] !== 0 || frameBuffer[frameI - 2] !== 0) {
-              frameI += 3;
-              break;
-            }
-
-            nalType = parseNalUnitType(frameBuffer[frameSyncPoint + 3] & 0x1f);
-
-            if (nalType === 'slice_layer_without_partitioning_rbsp_idr') {
-              foundKeyFrame = true;
-            }
-
-            frameSyncPoint = frameI - 2;
-            frameI += 3;
-            break;
-
-          default:
-            // the current byte isn't a one or zero, so it cannot be part
-            // of a sync sequence
-            frameI += 3;
-            break;
-        }
-      }
-
-      frameBuffer = frameBuffer.subarray(frameSyncPoint);
-      frameI -= frameSyncPoint;
-      frameSyncPoint = 0; // parse the final nal
-
-      if (frameBuffer && frameBuffer.byteLength > 3) {
-        nalType = parseNalUnitType(frameBuffer[frameSyncPoint + 3] & 0x1f);
-
-        if (nalType === 'slice_layer_without_partitioning_rbsp_idr') {
-          foundKeyFrame = true;
-        }
-      }
-
-      return foundKeyFrame;
-    };
-
-    var probe$1 = {
-      parseType: parseType,
-      parsePat: parsePat,
-      parsePmt: parsePmt,
-      parsePayloadUnitStartIndicator: parsePayloadUnitStartIndicator,
-      parsePesType: parsePesType,
-      parsePesTime: parsePesTime,
-      videoPacketContainsKeyFrame: videoPacketContainsKeyFrame
-    };
-    var handleRollover = timestampRolloverStream.handleRollover;
-    var probe = {};
-    probe.ts = probe$1;
-    probe.aac = utils;
-    var ONE_SECOND_IN_TS = clock.ONE_SECOND_IN_TS;
-    var MP2T_PACKET_LENGTH = 188,
-        // bytes
-    SYNC_BYTE = 0x47;
-    /**
-     * walks through segment data looking for pat and pmt packets to parse out
-     * program map table information
-     */
-
-    var parsePsi_ = function parsePsi_(bytes, pmt) {
-      var startIndex = 0,
-          endIndex = MP2T_PACKET_LENGTH,
-          packet,
-          type;
-
-      while (endIndex < bytes.byteLength) {
-        // Look for a pair of start and end sync bytes in the data..
-        if (bytes[startIndex] === SYNC_BYTE && bytes[endIndex] === SYNC_BYTE) {
-          // We found a packet
-          packet = bytes.subarray(startIndex, endIndex);
-          type = probe.ts.parseType(packet, pmt.pid);
-
-          switch (type) {
-            case 'pat':
-              pmt.pid = probe.ts.parsePat(packet);
-              break;
-
-            case 'pmt':
-              var table = probe.ts.parsePmt(packet);
-              pmt.table = pmt.table || {};
-              Object.keys(table).forEach(function (key) {
-                pmt.table[key] = table[key];
-              });
-              break;
-          }
-
-          startIndex += MP2T_PACKET_LENGTH;
-          endIndex += MP2T_PACKET_LENGTH;
-          continue;
-        } // If we get here, we have somehow become de-synchronized and we need to step
-        // forward one byte at a time until we find a pair of sync bytes that denote
-        // a packet
-
-
-        startIndex++;
-        endIndex++;
-      }
-    };
-    /**
-     * walks through the segment data from the start and end to get timing information
-     * for the first and last audio pes packets
-     */
-
-
-    var parseAudioPes_ = function parseAudioPes_(bytes, pmt, result) {
-      var startIndex = 0,
-          endIndex = MP2T_PACKET_LENGTH,
-          packet,
-          type,
-          pesType,
-          pusi,
-          parsed;
-      var endLoop = false; // Start walking from start of segment to get first audio packet
-
-      while (endIndex <= bytes.byteLength) {
-        // Look for a pair of start and end sync bytes in the data..
-        if (bytes[startIndex] === SYNC_BYTE && (bytes[endIndex] === SYNC_BYTE || endIndex === bytes.byteLength)) {
-          // We found a packet
-          packet = bytes.subarray(startIndex, endIndex);
-          type = probe.ts.parseType(packet, pmt.pid);
-
-          switch (type) {
-            case 'pes':
-              pesType = probe.ts.parsePesType(packet, pmt.table);
-              pusi = probe.ts.parsePayloadUnitStartIndicator(packet);
-
-              if (pesType === 'audio' && pusi) {
-                parsed = probe.ts.parsePesTime(packet);
-
-                if (parsed) {
-                  parsed.type = 'audio';
-                  result.audio.push(parsed);
-                  endLoop = true;
-                }
-              }
-
-              break;
-          }
-
-          if (endLoop) {
-            break;
-          }
-
-          startIndex += MP2T_PACKET_LENGTH;
-          endIndex += MP2T_PACKET_LENGTH;
-          continue;
-        } // If we get here, we have somehow become de-synchronized and we need to step
-        // forward one byte at a time until we find a pair of sync bytes that denote
-        // a packet
-
-
-        startIndex++;
-        endIndex++;
-      } // Start walking from end of segment to get last audio packet
-
-
-      endIndex = bytes.byteLength;
-      startIndex = endIndex - MP2T_PACKET_LENGTH;
-      endLoop = false;
-
-      while (startIndex >= 0) {
-        // Look for a pair of start and end sync bytes in the data..
-        if (bytes[startIndex] === SYNC_BYTE && (bytes[endIndex] === SYNC_BYTE || endIndex === bytes.byteLength)) {
-          // We found a packet
-          packet = bytes.subarray(startIndex, endIndex);
-          type = probe.ts.parseType(packet, pmt.pid);
-
-          switch (type) {
-            case 'pes':
-              pesType = probe.ts.parsePesType(packet, pmt.table);
-              pusi = probe.ts.parsePayloadUnitStartIndicator(packet);
-
-              if (pesType === 'audio' && pusi) {
-                parsed = probe.ts.parsePesTime(packet);
-
-                if (parsed) {
-                  parsed.type = 'audio';
-                  result.audio.push(parsed);
-                  endLoop = true;
-                }
-              }
-
-              break;
-          }
-
-          if (endLoop) {
-            break;
-          }
-
-          startIndex -= MP2T_PACKET_LENGTH;
-          endIndex -= MP2T_PACKET_LENGTH;
-          continue;
-        } // If we get here, we have somehow become de-synchronized and we need to step
-        // forward one byte at a time until we find a pair of sync bytes that denote
-        // a packet
-
-
-        startIndex--;
-        endIndex--;
-      }
-    };
-    /**
-     * walks through the segment data from the start and end to get timing information
-     * for the first and last video pes packets as well as timing information for the first
-     * key frame.
-     */
-
-
-    var parseVideoPes_ = function parseVideoPes_(bytes, pmt, result) {
-      var startIndex = 0,
-          endIndex = MP2T_PACKET_LENGTH,
-          packet,
-          type,
-          pesType,
-          pusi,
-          parsed,
-          frame,
-          i,
-          pes;
-      var endLoop = false;
-      var currentFrame = {
-        data: [],
-        size: 0
-      }; // Start walking from start of segment to get first video packet
-
-      while (endIndex < bytes.byteLength) {
-        // Look for a pair of start and end sync bytes in the data..
-        if (bytes[startIndex] === SYNC_BYTE && bytes[endIndex] === SYNC_BYTE) {
-          // We found a packet
-          packet = bytes.subarray(startIndex, endIndex);
-          type = probe.ts.parseType(packet, pmt.pid);
-
-          switch (type) {
-            case 'pes':
-              pesType = probe.ts.parsePesType(packet, pmt.table);
-              pusi = probe.ts.parsePayloadUnitStartIndicator(packet);
-
-              if (pesType === 'video') {
-                if (pusi && !endLoop) {
-                  parsed = probe.ts.parsePesTime(packet);
-
-                  if (parsed) {
-                    parsed.type = 'video';
-                    result.video.push(parsed);
-                    endLoop = true;
-                  }
-                }
-
-                if (!result.firstKeyFrame) {
-                  if (pusi) {
-                    if (currentFrame.size !== 0) {
-                      frame = new Uint8Array(currentFrame.size);
-                      i = 0;
-
-                      while (currentFrame.data.length) {
-                        pes = currentFrame.data.shift();
-                        frame.set(pes, i);
-                        i += pes.byteLength;
-                      }
-
-                      if (probe.ts.videoPacketContainsKeyFrame(frame)) {
-                        var firstKeyFrame = probe.ts.parsePesTime(frame); // PTS/DTS may not be available. Simply *not* setting
-                        // the keyframe seems to work fine with HLS playback
-                        // and definitely preferable to a crash with TypeError...
-
-                        if (firstKeyFrame) {
-                          result.firstKeyFrame = firstKeyFrame;
-                          result.firstKeyFrame.type = 'video';
-                        } else {
-                          // eslint-disable-next-line
-                          console.warn('Failed to extract PTS/DTS from PES at first keyframe. ' + 'This could be an unusual TS segment, or else mux.js did not ' + 'parse your TS segment correctly. If you know your TS ' + 'segments do contain PTS/DTS on keyframes please file a bug ' + 'report! You can try ffprobe to double check for yourself.');
+        if (time < 0) {
+            // Walk backward from startIndex in the playlist, adding durations
+            // until we find a segment that contains `time` and return it
+            if (startIndex > 0) {
+                for (let i = startIndex - 1; i >= 0; i--) {
+                    const partAndSegment = partsAndSegments[i];
+                    time += partAndSegment.duration;
+                    if (exactManifestTimings) {
+                        if (time < 0) {
+                            continue;
                         }
-                      }
-
-                      currentFrame.size = 0;
+                    } else if (time + TIME_FUDGE_FACTOR <= 0) {
+                        continue;
                     }
-                  }
-
-                  currentFrame.data.push(packet);
-                  currentFrame.size += packet.byteLength;
+                    return {
+                        partIndex: partAndSegment.partIndex,
+                        segmentIndex: partAndSegment.segmentIndex,
+                        startTime: startTime - sumDurations({
+                            defaultDuration: playlist.targetDuration,
+                            durationList: partsAndSegments,
+                            startIndex,
+                            endIndex: i
+                        })
+                    };
                 }
-              }
+            } // We were unable to find a good segment within the playlist
+            // so select the first segment
 
-              break;
-          }
+            return {
+                partIndex: partsAndSegments[0] && partsAndSegments[0].partIndex || null,
+                segmentIndex: partsAndSegments[0] && partsAndSegments[0].segmentIndex || 0,
+                startTime: currentTime
+            };
+        } // When startIndex is negative, we first walk forward to first segment
+        // adding target durations. If we "run out of time" before getting to
+        // the first segment, return the first segment
 
-          if (endLoop && result.firstKeyFrame) {
-            break;
-          }
-
-          startIndex += MP2T_PACKET_LENGTH;
-          endIndex += MP2T_PACKET_LENGTH;
-          continue;
-        } // If we get here, we have somehow become de-synchronized and we need to step
-        // forward one byte at a time until we find a pair of sync bytes that denote
-        // a packet
-
-
-        startIndex++;
-        endIndex++;
-      } // Start walking from end of segment to get last video packet
-
-
-      endIndex = bytes.byteLength;
-      startIndex = endIndex - MP2T_PACKET_LENGTH;
-      endLoop = false;
-
-      while (startIndex >= 0) {
-        // Look for a pair of start and end sync bytes in the data..
-        if (bytes[startIndex] === SYNC_BYTE && bytes[endIndex] === SYNC_BYTE) {
-          // We found a packet
-          packet = bytes.subarray(startIndex, endIndex);
-          type = probe.ts.parseType(packet, pmt.pid);
-
-          switch (type) {
-            case 'pes':
-              pesType = probe.ts.parsePesType(packet, pmt.table);
-              pusi = probe.ts.parsePayloadUnitStartIndicator(packet);
-
-              if (pesType === 'video' && pusi) {
-                parsed = probe.ts.parsePesTime(packet);
-
-                if (parsed) {
-                  parsed.type = 'video';
-                  result.video.push(parsed);
-                  endLoop = true;
+        if (startIndex < 0) {
+            for (let i = startIndex; i < 0; i++) {
+                time -= playlist.targetDuration;
+                if (time < 0) {
+                    return {
+                        partIndex: partsAndSegments[0] && partsAndSegments[0].partIndex || null,
+                        segmentIndex: partsAndSegments[0] && partsAndSegments[0].segmentIndex || 0,
+                        startTime: currentTime
+                    };
                 }
-              }
-
-              break;
-          }
-
-          if (endLoop) {
-            break;
-          }
-
-          startIndex -= MP2T_PACKET_LENGTH;
-          endIndex -= MP2T_PACKET_LENGTH;
-          continue;
-        } // If we get here, we have somehow become de-synchronized and we need to step
-        // forward one byte at a time until we find a pair of sync bytes that denote
-        // a packet
-
-
-        startIndex--;
-        endIndex--;
-      }
-    };
-    /**
-     * Adjusts the timestamp information for the segment to account for
-     * rollover and convert to seconds based on pes packet timescale (90khz clock)
-     */
-
-
-    var adjustTimestamp_ = function adjustTimestamp_(segmentInfo, baseTimestamp) {
-      if (segmentInfo.audio && segmentInfo.audio.length) {
-        var audioBaseTimestamp = baseTimestamp;
-
-        if (typeof audioBaseTimestamp === 'undefined' || isNaN(audioBaseTimestamp)) {
-          audioBaseTimestamp = segmentInfo.audio[0].dts;
-        }
-
-        segmentInfo.audio.forEach(function (info) {
-          info.dts = handleRollover(info.dts, audioBaseTimestamp);
-          info.pts = handleRollover(info.pts, audioBaseTimestamp); // time in seconds
-
-          info.dtsTime = info.dts / ONE_SECOND_IN_TS;
-          info.ptsTime = info.pts / ONE_SECOND_IN_TS;
-        });
-      }
-
-      if (segmentInfo.video && segmentInfo.video.length) {
-        var videoBaseTimestamp = baseTimestamp;
-
-        if (typeof videoBaseTimestamp === 'undefined' || isNaN(videoBaseTimestamp)) {
-          videoBaseTimestamp = segmentInfo.video[0].dts;
-        }
-
-        segmentInfo.video.forEach(function (info) {
-          info.dts = handleRollover(info.dts, videoBaseTimestamp);
-          info.pts = handleRollover(info.pts, videoBaseTimestamp); // time in seconds
-
-          info.dtsTime = info.dts / ONE_SECOND_IN_TS;
-          info.ptsTime = info.pts / ONE_SECOND_IN_TS;
-        });
-
-        if (segmentInfo.firstKeyFrame) {
-          var frame = segmentInfo.firstKeyFrame;
-          frame.dts = handleRollover(frame.dts, videoBaseTimestamp);
-          frame.pts = handleRollover(frame.pts, videoBaseTimestamp); // time in seconds
-
-          frame.dtsTime = frame.dts / ONE_SECOND_IN_TS;
-          frame.ptsTime = frame.pts / ONE_SECOND_IN_TS;
-        }
-      }
-    };
-    /**
-     * inspects the aac data stream for start and end time information
-     */
-
-
-    var inspectAac_ = function inspectAac_(bytes) {
-      var endLoop = false,
-          audioCount = 0,
-          sampleRate = null,
-          timestamp = null,
-          frameSize = 0,
-          byteIndex = 0,
-          packet;
-
-      while (bytes.length - byteIndex >= 3) {
-        var type = probe.aac.parseType(bytes, byteIndex);
-
-        switch (type) {
-          case 'timed-metadata':
-            // Exit early because we don't have enough to parse
-            // the ID3 tag header
-            if (bytes.length - byteIndex < 10) {
-              endLoop = true;
-              break;
             }
+            startIndex = 0;
+        } // Walk forward from startIndex in the playlist, subtracting durations
+        // until we find a segment that contains `time` and return it
 
-            frameSize = probe.aac.parseId3TagSize(bytes, byteIndex); // Exit early if we don't have enough in the buffer
-            // to emit a full packet
-
-            if (frameSize > bytes.length) {
-              endLoop = true;
-              break;
+        for (let i = startIndex; i < partsAndSegments.length; i++) {
+            const partAndSegment = partsAndSegments[i];
+            time -= partAndSegment.duration;
+            if (exactManifestTimings) {
+                if (time > 0) {
+                    continue;
+                }
+            } else if (time - TIME_FUDGE_FACTOR >= 0) {
+                continue;
             }
+            return {
+                partIndex: partAndSegment.partIndex,
+                segmentIndex: partAndSegment.segmentIndex,
+                startTime: startTime + sumDurations({
+                    defaultDuration: playlist.targetDuration,
+                    durationList: partsAndSegments,
+                    startIndex,
+                    endIndex: i
+                })
+            };
+        } // We are out of possible candidates so load the last one...
 
-            if (timestamp === null) {
-              packet = bytes.subarray(byteIndex, byteIndex + frameSize);
-              timestamp = probe.aac.parseAacTimestamp(packet);
+        return {
+            segmentIndex: partsAndSegments[partsAndSegments.length - 1].segmentIndex,
+            partIndex: partsAndSegments[partsAndSegments.length - 1].partIndex,
+            startTime: currentTime
+        };
+    };
+    /**
+     * Check whether the playlist is excluded or not.
+     *
+     * @param {Object} playlist the media playlist object
+     * @return {boolean} whether the playlist is excluded or not
+     * @function isExcluded
+     */
+
+    const isExcluded = function (playlist) {
+        return playlist.excludeUntil && playlist.excludeUntil > Date.now();
+    };
+    /**
+     * Check whether the playlist is compatible with current playback configuration or has
+     * been excluded permanently for being incompatible.
+     *
+     * @param {Object} playlist the media playlist object
+     * @return {boolean} whether the playlist is incompatible or not
+     * @function isIncompatible
+     */
+
+    const isIncompatible = function (playlist) {
+        return playlist.excludeUntil && playlist.excludeUntil === Infinity;
+    };
+    /**
+     * Check whether the playlist is enabled or not.
+     *
+     * @param {Object} playlist the media playlist object
+     * @return {boolean} whether the playlist is enabled or not
+     * @function isEnabled
+     */
+
+    const isEnabled = function (playlist) {
+        const excluded = isExcluded(playlist);
+        return !playlist.disabled && !excluded;
+    };
+    /**
+     * Check whether the playlist has been manually disabled through the representations api.
+     *
+     * @param {Object} playlist the media playlist object
+     * @return {boolean} whether the playlist is disabled manually or not
+     * @function isDisabled
+     */
+
+    const isDisabled = function (playlist) {
+        return playlist.disabled;
+    };
+    /**
+     * Returns whether the current playlist is an AES encrypted HLS stream
+     *
+     * @return {boolean} true if it's an AES encrypted HLS stream
+     */
+
+    const isAes = function (media) {
+        for (let i = 0; i < media.segments.length; i++) {
+            if (media.segments[i].key) {
+                return true;
             }
-
-            byteIndex += frameSize;
-            break;
-
-          case 'audio':
-            // Exit early because we don't have enough to parse
-            // the ADTS frame header
-            if (bytes.length - byteIndex < 7) {
-              endLoop = true;
-              break;
-            }
-
-            frameSize = probe.aac.parseAdtsSize(bytes, byteIndex); // Exit early if we don't have enough in the buffer
-            // to emit a full packet
-
-            if (frameSize > bytes.length) {
-              endLoop = true;
-              break;
-            }
-
-            if (sampleRate === null) {
-              packet = bytes.subarray(byteIndex, byteIndex + frameSize);
-              sampleRate = probe.aac.parseSampleRate(packet);
-            }
-
-            audioCount++;
-            byteIndex += frameSize;
-            break;
-
-          default:
-            byteIndex++;
-            break;
         }
-
-        if (endLoop) {
-          return null;
-        }
-      }
-
-      if (sampleRate === null || timestamp === null) {
-        return null;
-      }
-
-      var audioTimescale = ONE_SECOND_IN_TS / sampleRate;
-      var result = {
-        audio: [{
-          type: 'audio',
-          dts: timestamp,
-          pts: timestamp
-        }, {
-          type: 'audio',
-          dts: timestamp + audioCount * 1024 * audioTimescale,
-          pts: timestamp + audioCount * 1024 * audioTimescale
-        }]
-      };
-      return result;
-    };
-    /**
-     * inspects the transport stream segment data for start and end time information
-     * of the audio and video tracks (when present) as well as the first key frame's
-     * start time.
-     */
-
-
-    var inspectTs_ = function inspectTs_(bytes) {
-      var pmt = {
-        pid: null,
-        table: null
-      };
-      var result = {};
-      parsePsi_(bytes, pmt);
-
-      for (var pid in pmt.table) {
-        if (pmt.table.hasOwnProperty(pid)) {
-          var type = pmt.table[pid];
-
-          switch (type) {
-            case streamTypes.H264_STREAM_TYPE:
-              result.video = [];
-              parseVideoPes_(bytes, pmt, result);
-
-              if (result.video.length === 0) {
-                delete result.video;
-              }
-
-              break;
-
-            case streamTypes.ADTS_STREAM_TYPE:
-              result.audio = [];
-              parseAudioPes_(bytes, pmt, result);
-
-              if (result.audio.length === 0) {
-                delete result.audio;
-              }
-
-              break;
-          }
-        }
-      }
-
-      return result;
-    };
-    /**
-     * Inspects segment byte data and returns an object with start and end timing information
-     *
-     * @param {Uint8Array} bytes The segment byte data
-     * @param {Number} baseTimestamp Relative reference timestamp used when adjusting frame
-     *  timestamps for rollover. This value must be in 90khz clock.
-     * @return {Object} Object containing start and end frame timing info of segment.
-     */
-
-
-    var inspect = function inspect(bytes, baseTimestamp) {
-      var isAacData = probe.aac.isLikelyAacData(bytes);
-      var result;
-
-      if (isAacData) {
-        result = inspectAac_(bytes);
-      } else {
-        result = inspectTs_(bytes);
-      }
-
-      if (!result || !result.audio && !result.video) {
-        return null;
-      }
-
-      adjustTimestamp_(result, baseTimestamp);
-      return result;
-    };
-
-    var tsInspector = {
-      inspect: inspect,
-      parseAudioPes_: parseAudioPes_
-    };
-    /* global self */
-
-    /**
-     * Re-emits transmuxer events by converting them into messages to the
-     * world outside the worker.
-     *
-     * @param {Object} transmuxer the transmuxer to wire events on
-     * @private
-     */
-
-    var wireTransmuxerEvents = function wireTransmuxerEvents(self, transmuxer) {
-      transmuxer.on('data', function (segment) {
-        // transfer ownership of the underlying ArrayBuffer
-        // instead of doing a copy to save memory
-        // ArrayBuffers are transferable but generic TypedArrays are not
-        // @link https://developer.mozilla.org/en-US/docs/Web/API/Web_Workers_API/Using_web_workers#Passing_data_by_transferring_ownership_(transferable_objects)
-        var initArray = segment.initSegment;
-        segment.initSegment = {
-          data: initArray.buffer,
-          byteOffset: initArray.byteOffset,
-          byteLength: initArray.byteLength
-        };
-        var typedArray = segment.data;
-        segment.data = typedArray.buffer;
-        self.postMessage({
-          action: 'data',
-          segment: segment,
-          byteOffset: typedArray.byteOffset,
-          byteLength: typedArray.byteLength
-        }, [segment.data]);
-      });
-      transmuxer.on('done', function (data) {
-        self.postMessage({
-          action: 'done'
-        });
-      });
-      transmuxer.on('gopInfo', function (gopInfo) {
-        self.postMessage({
-          action: 'gopInfo',
-          gopInfo: gopInfo
-        });
-      });
-      transmuxer.on('videoSegmentTimingInfo', function (timingInfo) {
-        var videoSegmentTimingInfo = {
-          start: {
-            decode: clock.videoTsToSeconds(timingInfo.start.dts),
-            presentation: clock.videoTsToSeconds(timingInfo.start.pts)
-          },
-          end: {
-            decode: clock.videoTsToSeconds(timingInfo.end.dts),
-            presentation: clock.videoTsToSeconds(timingInfo.end.pts)
-          },
-          baseMediaDecodeTime: clock.videoTsToSeconds(timingInfo.baseMediaDecodeTime)
-        };
-
-        if (timingInfo.prependedContentDuration) {
-          videoSegmentTimingInfo.prependedContentDuration = clock.videoTsToSeconds(timingInfo.prependedContentDuration);
-        }
-
-        self.postMessage({
-          action: 'videoSegmentTimingInfo',
-          videoSegmentTimingInfo: videoSegmentTimingInfo
-        });
-      });
-      transmuxer.on('audioSegmentTimingInfo', function (timingInfo) {
-        // Note that all times for [audio/video]SegmentTimingInfo events are in video clock
-        var audioSegmentTimingInfo = {
-          start: {
-            decode: clock.videoTsToSeconds(timingInfo.start.dts),
-            presentation: clock.videoTsToSeconds(timingInfo.start.pts)
-          },
-          end: {
-            decode: clock.videoTsToSeconds(timingInfo.end.dts),
-            presentation: clock.videoTsToSeconds(timingInfo.end.pts)
-          },
-          baseMediaDecodeTime: clock.videoTsToSeconds(timingInfo.baseMediaDecodeTime)
-        };
-
-        if (timingInfo.prependedContentDuration) {
-          audioSegmentTimingInfo.prependedContentDuration = clock.videoTsToSeconds(timingInfo.prependedContentDuration);
-        }
-
-        self.postMessage({
-          action: 'audioSegmentTimingInfo',
-          audioSegmentTimingInfo: audioSegmentTimingInfo
-        });
-      });
-      transmuxer.on('id3Frame', function (id3Frame) {
-        self.postMessage({
-          action: 'id3Frame',
-          id3Frame: id3Frame
-        });
-      });
-      transmuxer.on('caption', function (caption) {
-        self.postMessage({
-          action: 'caption',
-          caption: caption
-        });
-      });
-      transmuxer.on('trackinfo', function (trackInfo) {
-        self.postMessage({
-          action: 'trackinfo',
-          trackInfo: trackInfo
-        });
-      });
-      transmuxer.on('audioTimingInfo', function (audioTimingInfo) {
-        // convert to video TS since we prioritize video time over audio
-        self.postMessage({
-          action: 'audioTimingInfo',
-          audioTimingInfo: {
-            start: clock.videoTsToSeconds(audioTimingInfo.start),
-            end: clock.videoTsToSeconds(audioTimingInfo.end)
-          }
-        });
-      });
-      transmuxer.on('videoTimingInfo', function (videoTimingInfo) {
-        self.postMessage({
-          action: 'videoTimingInfo',
-          videoTimingInfo: {
-            start: clock.videoTsToSeconds(videoTimingInfo.start),
-            end: clock.videoTsToSeconds(videoTimingInfo.end)
-          }
-        });
-      });
-      transmuxer.on('log', function (log) {
-        self.postMessage({
-          action: 'log',
-          log: log
-        });
-      });
-    };
-    /**
-     * All incoming messages route through this hash. If no function exists
-     * to handle an incoming message, then we ignore the message.
-     *
-     * @class MessageHandlers
-     * @param {Object} options the options to initialize with
-     */
-
-
-    var MessageHandlers = /*#__PURE__*/function () {
-      function MessageHandlers(self, options) {
-        this.options = options || {};
-        this.self = self;
-        this.init();
-      }
-      /**
-       * initialize our web worker and wire all the events.
-       */
-
-
-      var _proto = MessageHandlers.prototype;
-
-      _proto.init = function init() {
-        if (this.transmuxer) {
-          this.transmuxer.dispose();
-        }
-
-        this.transmuxer = new transmuxer.Transmuxer(this.options);
-        wireTransmuxerEvents(this.self, this.transmuxer);
-      };
-
-      _proto.pushMp4Captions = function pushMp4Captions(data) {
-        if (!this.captionParser) {
-          this.captionParser = new captionParser();
-          this.captionParser.init();
-        }
-
-        var segment = new Uint8Array(data.data, data.byteOffset, data.byteLength);
-        var parsed = this.captionParser.parse(segment, data.trackIds, data.timescales);
-        this.self.postMessage({
-          action: 'mp4Captions',
-          captions: parsed && parsed.captions || [],
-          logs: parsed && parsed.logs || [],
-          data: segment.buffer
-        }, [segment.buffer]);
-      };
-
-      _proto.probeMp4StartTime = function probeMp4StartTime(_ref) {
-        var timescales = _ref.timescales,
-            data = _ref.data;
-        var startTime = probe$2.startTime(timescales, data);
-        this.self.postMessage({
-          action: 'probeMp4StartTime',
-          startTime: startTime,
-          data: data
-        }, [data.buffer]);
-      };
-
-      _proto.probeMp4Tracks = function probeMp4Tracks(_ref2) {
-        var data = _ref2.data;
-        var tracks = probe$2.tracks(data);
-        this.self.postMessage({
-          action: 'probeMp4Tracks',
-          tracks: tracks,
-          data: data
-        }, [data.buffer]);
-      }
-      /**
-       * Probe an mpeg2-ts segment to determine the start time of the segment in it's
-       * internal "media time," as well as whether it contains video and/or audio.
-       *
-       * @private
-       * @param {Uint8Array} bytes - segment bytes
-       * @param {number} baseStartTime
-       *        Relative reference timestamp used when adjusting frame timestamps for rollover.
-       *        This value should be in seconds, as it's converted to a 90khz clock within the
-       *        function body.
-       * @return {Object} The start time of the current segment in "media time" as well as
-       *                  whether it contains video and/or audio
-       */
-      ;
-
-      _proto.probeTs = function probeTs(_ref3) {
-        var data = _ref3.data,
-            baseStartTime = _ref3.baseStartTime;
-        var tsStartTime = typeof baseStartTime === 'number' && !isNaN(baseStartTime) ? baseStartTime * clock.ONE_SECOND_IN_TS : void 0;
-        var timeInfo = tsInspector.inspect(data, tsStartTime);
-        var result = null;
-
-        if (timeInfo) {
-          result = {
-            // each type's time info comes back as an array of 2 times, start and end
-            hasVideo: timeInfo.video && timeInfo.video.length === 2 || false,
-            hasAudio: timeInfo.audio && timeInfo.audio.length === 2 || false
-          };
-
-          if (result.hasVideo) {
-            result.videoStart = timeInfo.video[0].ptsTime;
-          }
-
-          if (result.hasAudio) {
-            result.audioStart = timeInfo.audio[0].ptsTime;
-          }
-        }
-
-        this.self.postMessage({
-          action: 'probeTs',
-          result: result,
-          data: data
-        }, [data.buffer]);
-      };
-
-      _proto.clearAllMp4Captions = function clearAllMp4Captions() {
-        if (this.captionParser) {
-          this.captionParser.clearAllCaptions();
-        }
-      };
-
-      _proto.clearParsedMp4Captions = function clearParsedMp4Captions() {
-        if (this.captionParser) {
-          this.captionParser.clearParsedCaptions();
-        }
-      }
-      /**
-       * Adds data (a ts segment) to the start of the transmuxer pipeline for
-       * processing.
-       *
-       * @param {ArrayBuffer} data data to push into the muxer
-       */
-      ;
-
-      _proto.push = function push(data) {
-        // Cast array buffer to correct type for transmuxer
-        var segment = new Uint8Array(data.data, data.byteOffset, data.byteLength);
-        this.transmuxer.push(segment);
-      }
-      /**
-       * Recreate the transmuxer so that the next segment added via `push`
-       * start with a fresh transmuxer.
-       */
-      ;
-
-      _proto.reset = function reset() {
-        this.transmuxer.reset();
-      }
-      /**
-       * Set the value that will be used as the `baseMediaDecodeTime` time for the
-       * next segment pushed in. Subsequent segments will have their `baseMediaDecodeTime`
-       * set relative to the first based on the PTS values.
-       *
-       * @param {Object} data used to set the timestamp offset in the muxer
-       */
-      ;
-
-      _proto.setTimestampOffset = function setTimestampOffset(data) {
-        var timestampOffset = data.timestampOffset || 0;
-        this.transmuxer.setBaseMediaDecodeTime(Math.round(clock.secondsToVideoTs(timestampOffset)));
-      };
-
-      _proto.setAudioAppendStart = function setAudioAppendStart(data) {
-        this.transmuxer.setAudioAppendStart(Math.ceil(clock.secondsToVideoTs(data.appendStart)));
-      };
-
-      _proto.setRemux = function setRemux(data) {
-        this.transmuxer.setRemux(data.remux);
-      }
-      /**
-       * Forces the pipeline to finish processing the last segment and emit it's
-       * results.
-       *
-       * @param {Object} data event data, not really used
-       */
-      ;
-
-      _proto.flush = function flush(data) {
-        this.transmuxer.flush(); // transmuxed done action is fired after both audio/video pipelines are flushed
-
-        self.postMessage({
-          action: 'done',
-          type: 'transmuxed'
-        });
-      };
-
-      _proto.endTimeline = function endTimeline() {
-        this.transmuxer.endTimeline(); // transmuxed endedtimeline action is fired after both audio/video pipelines end their
-        // timelines
-
-        self.postMessage({
-          action: 'endedtimeline',
-          type: 'transmuxed'
-        });
-      };
-
-      _proto.alignGopsWith = function alignGopsWith(data) {
-        this.transmuxer.alignGopsWith(data.gopsToAlignWith.slice());
-      };
-
-      return MessageHandlers;
-    }();
-    /**
-     * Our web worker interface so that things can talk to mux.js
-     * that will be running in a web worker. the scope is passed to this by
-     * webworkify.
-     *
-     * @param {Object} self the scope for the web worker
-     */
-
-
-    self.onmessage = function (event) {
-      if (event.data.action === 'init' && event.data.options) {
-        this.messageHandlers = new MessageHandlers(self, event.data.options);
-        return;
-      }
-
-      if (!this.messageHandlers) {
-        this.messageHandlers = new MessageHandlers(self);
-      }
-
-      if (event.data && event.data.action && event.data.action !== 'init') {
-        if (this.messageHandlers[event.data.action]) {
-          this.messageHandlers[event.data.action](event.data);
-        }
-      }
-    };
-  }));
-  var TransmuxWorker = factory(workerCode$1);
-  /* rollup-plugin-worker-factory end for worker!/Users/abarstow/videojs/http-streaming/src/transmuxer-worker.js */
-
-  var handleData_ = function handleData_(event, transmuxedData, callback) {
-    var _event$data$segment = event.data.segment,
-        type = _event$data$segment.type,
-        initSegment = _event$data$segment.initSegment,
-        captions = _event$data$segment.captions,
-        captionStreams = _event$data$segment.captionStreams,
-        metadata = _event$data$segment.metadata,
-        videoFrameDtsTime = _event$data$segment.videoFrameDtsTime,
-        videoFramePtsTime = _event$data$segment.videoFramePtsTime;
-    transmuxedData.buffer.push({
-      captions: captions,
-      captionStreams: captionStreams,
-      metadata: metadata
-    });
-    var boxes = event.data.segment.boxes || {
-      data: event.data.segment.data
-    };
-    var result = {
-      type: type,
-      // cast ArrayBuffer to TypedArray
-      data: new Uint8Array(boxes.data, boxes.data.byteOffset, boxes.data.byteLength),
-      initSegment: new Uint8Array(initSegment.data, initSegment.byteOffset, initSegment.byteLength)
-    };
-
-    if (typeof videoFrameDtsTime !== 'undefined') {
-      result.videoFrameDtsTime = videoFrameDtsTime;
-    }
-
-    if (typeof videoFramePtsTime !== 'undefined') {
-      result.videoFramePtsTime = videoFramePtsTime;
-    }
-
-    callback(result);
-  };
-
-  var handleDone_ = function handleDone_(_ref) {
-    var transmuxedData = _ref.transmuxedData,
-        callback = _ref.callback; // Previously we only returned data on data events,
-    // not on done events. Clear out the buffer to keep that consistent.
-
-    transmuxedData.buffer = []; // all buffers should have been flushed from the muxer, so start processing anything we
-    // have received
-
-    callback(transmuxedData);
-  };
-
-  var handleGopInfo_ = function handleGopInfo_(event, transmuxedData) {
-    transmuxedData.gopInfo = event.data.gopInfo;
-  };
-
-  var processTransmux = function processTransmux(options) {
-    var transmuxer = options.transmuxer,
-        bytes = options.bytes,
-        audioAppendStart = options.audioAppendStart,
-        gopsToAlignWith = options.gopsToAlignWith,
-        remux = options.remux,
-        onData = options.onData,
-        onTrackInfo = options.onTrackInfo,
-        onAudioTimingInfo = options.onAudioTimingInfo,
-        onVideoTimingInfo = options.onVideoTimingInfo,
-        onVideoSegmentTimingInfo = options.onVideoSegmentTimingInfo,
-        onAudioSegmentTimingInfo = options.onAudioSegmentTimingInfo,
-        onId3 = options.onId3,
-        onCaptions = options.onCaptions,
-        onDone = options.onDone,
-        onEndedTimeline = options.onEndedTimeline,
-        onTransmuxerLog = options.onTransmuxerLog,
-        isEndOfTimeline = options.isEndOfTimeline;
-    var transmuxedData = {
-      buffer: []
-    };
-    var waitForEndedTimelineEvent = isEndOfTimeline;
-
-    var handleMessage = function handleMessage(event) {
-      if (transmuxer.currentTransmux !== options) {
-        // disposed
-        return;
-      }
-
-      if (event.data.action === 'data') {
-        handleData_(event, transmuxedData, onData);
-      }
-
-      if (event.data.action === 'trackinfo') {
-        onTrackInfo(event.data.trackInfo);
-      }
-
-      if (event.data.action === 'gopInfo') {
-        handleGopInfo_(event, transmuxedData);
-      }
-
-      if (event.data.action === 'audioTimingInfo') {
-        onAudioTimingInfo(event.data.audioTimingInfo);
-      }
-
-      if (event.data.action === 'videoTimingInfo') {
-        onVideoTimingInfo(event.data.videoTimingInfo);
-      }
-
-      if (event.data.action === 'videoSegmentTimingInfo') {
-        onVideoSegmentTimingInfo(event.data.videoSegmentTimingInfo);
-      }
-
-      if (event.data.action === 'audioSegmentTimingInfo') {
-        onAudioSegmentTimingInfo(event.data.audioSegmentTimingInfo);
-      }
-
-      if (event.data.action === 'id3Frame') {
-        onId3([event.data.id3Frame], event.data.id3Frame.dispatchType);
-      }
-
-      if (event.data.action === 'caption') {
-        onCaptions(event.data.caption);
-      }
-
-      if (event.data.action === 'endedtimeline') {
-        waitForEndedTimelineEvent = false;
-        onEndedTimeline();
-      }
-
-      if (event.data.action === 'log') {
-        onTransmuxerLog(event.data.log);
-      } // wait for the transmuxed event since we may have audio and video
-
-
-      if (event.data.type !== 'transmuxed') {
-        return;
-      } // If the "endedtimeline" event has not yet fired, and this segment represents the end
-      // of a timeline, that means there may still be data events before the segment
-      // processing can be considerred complete. In that case, the final event should be
-      // an "endedtimeline" event with the type "transmuxed."
-
-
-      if (waitForEndedTimelineEvent) {
-        return;
-      }
-
-      transmuxer.onmessage = null;
-      handleDone_({
-        transmuxedData: transmuxedData,
-        callback: onDone
-      });
-      /* eslint-disable no-use-before-define */
-
-      dequeue(transmuxer);
-      /* eslint-enable */
-    };
-
-    transmuxer.onmessage = handleMessage;
-
-    if (audioAppendStart) {
-      transmuxer.postMessage({
-        action: 'setAudioAppendStart',
-        appendStart: audioAppendStart
-      });
-    } // allow empty arrays to be passed to clear out GOPs
-
-
-    if (Array.isArray(gopsToAlignWith)) {
-      transmuxer.postMessage({
-        action: 'alignGopsWith',
-        gopsToAlignWith: gopsToAlignWith
-      });
-    }
-
-    if (typeof remux !== 'undefined') {
-      transmuxer.postMessage({
-        action: 'setRemux',
-        remux: remux
-      });
-    }
-
-    if (bytes.byteLength) {
-      var buffer = bytes instanceof ArrayBuffer ? bytes : bytes.buffer;
-      var byteOffset = bytes instanceof ArrayBuffer ? 0 : bytes.byteOffset;
-      transmuxer.postMessage({
-        action: 'push',
-        // Send the typed-array of data as an ArrayBuffer so that
-        // it can be sent as a "Transferable" and avoid the costly
-        // memory copy
-        data: buffer,
-        // To recreate the original typed-array, we need information
-        // about what portion of the ArrayBuffer it was a view into
-        byteOffset: byteOffset,
-        byteLength: bytes.byteLength
-      }, [buffer]);
-    }
-
-    if (isEndOfTimeline) {
-      transmuxer.postMessage({
-        action: 'endTimeline'
-      });
-    } // even if we didn't push any bytes, we have to make sure we flush in case we reached
-    // the end of the segment
-
-
-    transmuxer.postMessage({
-      action: 'flush'
-    });
-  };
-
-  var dequeue = function dequeue(transmuxer) {
-    transmuxer.currentTransmux = null;
-
-    if (transmuxer.transmuxQueue.length) {
-      transmuxer.currentTransmux = transmuxer.transmuxQueue.shift();
-
-      if (typeof transmuxer.currentTransmux === 'function') {
-        transmuxer.currentTransmux();
-      } else {
-        processTransmux(transmuxer.currentTransmux);
-      }
-    }
-  };
-
-  var processAction = function processAction(transmuxer, action) {
-    transmuxer.postMessage({
-      action: action
-    });
-    dequeue(transmuxer);
-  };
-
-  var enqueueAction = function enqueueAction(action, transmuxer) {
-    if (!transmuxer.currentTransmux) {
-      transmuxer.currentTransmux = action;
-      processAction(transmuxer, action);
-      return;
-    }
-
-    transmuxer.transmuxQueue.push(processAction.bind(null, transmuxer, action));
-  };
-
-  var reset = function reset(transmuxer) {
-    enqueueAction('reset', transmuxer);
-  };
-
-  var endTimeline = function endTimeline(transmuxer) {
-    enqueueAction('endTimeline', transmuxer);
-  };
-
-  var transmux = function transmux(options) {
-    if (!options.transmuxer.currentTransmux) {
-      options.transmuxer.currentTransmux = options;
-      processTransmux(options);
-      return;
-    }
-
-    options.transmuxer.transmuxQueue.push(options);
-  };
-
-  var createTransmuxer = function createTransmuxer(options) {
-    var transmuxer = new TransmuxWorker();
-    transmuxer.currentTransmux = null;
-    transmuxer.transmuxQueue = [];
-    var term = transmuxer.terminate;
-
-    transmuxer.terminate = function () {
-      transmuxer.currentTransmux = null;
-      transmuxer.transmuxQueue.length = 0;
-      return term.call(transmuxer);
-    };
-
-    transmuxer.postMessage({
-      action: 'init',
-      options: options
-    });
-    return transmuxer;
-  };
-
-  var segmentTransmuxer = {
-    reset: reset,
-    endTimeline: endTimeline,
-    transmux: transmux,
-    createTransmuxer: createTransmuxer
-  };
-
-  var workerCallback = function workerCallback(options) {
-    var transmuxer = options.transmuxer;
-    var endAction = options.endAction || options.action;
-    var callback = options.callback;
-
-    var message = _extends_1({}, options, {
-      endAction: null,
-      transmuxer: null,
-      callback: null
-    });
-
-    var listenForEndEvent = function listenForEndEvent(event) {
-      if (event.data.action !== endAction) {
-        return;
-      }
-
-      transmuxer.removeEventListener('message', listenForEndEvent); // transfer ownership of bytes back to us.
-
-      if (event.data.data) {
-        event.data.data = new Uint8Array(event.data.data, options.byteOffset || 0, options.byteLength || event.data.data.byteLength);
-
-        if (options.data) {
-          options.data = event.data.data;
-        }
-      }
-
-      callback(event.data);
-    };
-
-    transmuxer.addEventListener('message', listenForEndEvent);
-
-    if (options.data) {
-      var isArrayBuffer = options.data instanceof ArrayBuffer;
-      message.byteOffset = isArrayBuffer ? 0 : options.data.byteOffset;
-      message.byteLength = options.data.byteLength;
-      var transfers = [isArrayBuffer ? options.data : options.data.buffer];
-      transmuxer.postMessage(message, transfers);
-    } else {
-      transmuxer.postMessage(message);
-    }
-  };
-
-  var REQUEST_ERRORS = {
-    FAILURE: 2,
-    TIMEOUT: -101,
-    ABORTED: -102
-  };
-  /**
-   * Abort all requests
-   *
-   * @param {Object} activeXhrs - an object that tracks all XHR requests
-   */
-
-  var abortAll = function abortAll(activeXhrs) {
-    activeXhrs.forEach(function (xhr) {
-      xhr.abort();
-    });
-  };
-  /**
-   * Gather important bandwidth stats once a request has completed
-   *
-   * @param {Object} request - the XHR request from which to gather stats
-   */
-
-
-  var getRequestStats = function getRequestStats(request) {
-    return {
-      bandwidth: request.bandwidth,
-      bytesReceived: request.bytesReceived || 0,
-      roundTripTime: request.roundTripTime || 0
-    };
-  };
-  /**
-   * If possible gather bandwidth stats as a request is in
-   * progress
-   *
-   * @param {Event} progressEvent - an event object from an XHR's progress event
-   */
-
-
-  var getProgressStats = function getProgressStats(progressEvent) {
-    var request = progressEvent.target;
-    var roundTripTime = Date.now() - request.requestTime;
-    var stats = {
-      bandwidth: Infinity,
-      bytesReceived: 0,
-      roundTripTime: roundTripTime || 0
-    };
-    stats.bytesReceived = progressEvent.loaded; // This can result in Infinity if stats.roundTripTime is 0 but that is ok
-    // because we should only use bandwidth stats on progress to determine when
-    // abort a request early due to insufficient bandwidth
-
-    stats.bandwidth = Math.floor(stats.bytesReceived / stats.roundTripTime * 8 * 1000);
-    return stats;
-  };
-  /**
-   * Handle all error conditions in one place and return an object
-   * with all the information
-   *
-   * @param {Error|null} error - if non-null signals an error occured with the XHR
-   * @param {Object} request -  the XHR request that possibly generated the error
-   */
-
-
-  var handleErrors = function handleErrors(error, request) {
-    if (request.timedout) {
-      return {
-        status: request.status,
-        message: 'HLS request timed-out at URL: ' + request.uri,
-        code: REQUEST_ERRORS.TIMEOUT,
-        xhr: request
-      };
-    }
-
-    if (request.aborted) {
-      return {
-        status: request.status,
-        message: 'HLS request aborted at URL: ' + request.uri,
-        code: REQUEST_ERRORS.ABORTED,
-        xhr: request
-      };
-    }
-
-    if (error) {
-      return {
-        status: request.status,
-        message: 'HLS request errored at URL: ' + request.uri,
-        code: REQUEST_ERRORS.FAILURE,
-        xhr: request
-      };
-    }
-
-    if (request.responseType === 'arraybuffer' && request.response.byteLength === 0) {
-      return {
-        status: request.status,
-        message: 'Empty HLS response at URL: ' + request.uri,
-        code: REQUEST_ERRORS.FAILURE,
-        xhr: request
-      };
-    }
-
-    return null;
-  };
-  /**
-   * Handle responses for key data and convert the key data to the correct format
-   * for the decryption step later
-   *
-   * @param {Object} segment - a simplified copy of the segmentInfo object
-   *                           from SegmentLoader
-   * @param {Array} objects - objects to add the key bytes to.
-   * @param {Function} finishProcessingFn - a callback to execute to continue processing
-   *                                        this request
-   */
-
-
-  var handleKeyResponse = function handleKeyResponse(segment, objects, finishProcessingFn) {
-    return function (error, request) {
-      var response = request.response;
-      var errorObj = handleErrors(error, request);
-
-      if (errorObj) {
-        return finishProcessingFn(errorObj, segment);
-      }
-
-      if (response.byteLength !== 16) {
-        return finishProcessingFn({
-          status: request.status,
-          message: 'Invalid HLS key at URL: ' + request.uri,
-          code: REQUEST_ERRORS.FAILURE,
-          xhr: request
-        }, segment);
-      }
-
-      var view = new DataView(response);
-      var bytes = new Uint32Array([view.getUint32(0), view.getUint32(4), view.getUint32(8), view.getUint32(12)]);
-
-      for (var i = 0; i < objects.length; i++) {
-        objects[i].bytes = bytes;
-      }
-
-      return finishProcessingFn(null, segment);
-    };
-  };
-
-  var parseInitSegment = function parseInitSegment(segment, _callback) {
-    var type = detectContainerForBytes(segment.map.bytes); // TODO: We should also handle ts init segments here, but we
-    // only know how to parse mp4 init segments at the moment
-
-    if (type !== 'mp4') {
-      var uri = segment.map.resolvedUri || segment.map.uri;
-      return _callback({
-        internal: true,
-        message: "Found unsupported " + (type || 'unknown') + " container for initialization segment at URL: " + uri,
-        code: REQUEST_ERRORS.FAILURE
-      });
-    }
-
-    workerCallback({
-      action: 'probeMp4Tracks',
-      data: segment.map.bytes,
-      transmuxer: segment.transmuxer,
-      callback: function callback(_ref) {
-        var tracks = _ref.tracks,
-            data = _ref.data; // transfer bytes back to us
-
-        segment.map.bytes = data;
-        tracks.forEach(function (track) {
-          segment.map.tracks = segment.map.tracks || {}; // only support one track of each type for now
-
-          if (segment.map.tracks[track.type]) {
-            return;
-          }
-
-          segment.map.tracks[track.type] = track;
-
-          if (typeof track.id === 'number' && track.timescale) {
-            segment.map.timescales = segment.map.timescales || {};
-            segment.map.timescales[track.id] = track.timescale;
-          }
-        });
-        return _callback(null);
-      }
-    });
-  };
-  /**
-   * Handle init-segment responses
-   *
-   * @param {Object} segment - a simplified copy of the segmentInfo object
-   *                           from SegmentLoader
-   * @param {Function} finishProcessingFn - a callback to execute to continue processing
-   *                                        this request
-   */
-
-
-  var handleInitSegmentResponse = function handleInitSegmentResponse(_ref2) {
-    var segment = _ref2.segment,
-        finishProcessingFn = _ref2.finishProcessingFn;
-    return function (error, request) {
-      var errorObj = handleErrors(error, request);
-
-      if (errorObj) {
-        return finishProcessingFn(errorObj, segment);
-      }
-
-      var bytes = new Uint8Array(request.response); // init segment is encypted, we will have to wait
-      // until the key request is done to decrypt.
-
-      if (segment.map.key) {
-        segment.map.encryptedBytes = bytes;
-        return finishProcessingFn(null, segment);
-      }
-
-      segment.map.bytes = bytes;
-      parseInitSegment(segment, function (parseError) {
-        if (parseError) {
-          parseError.xhr = request;
-          parseError.status = request.status;
-          return finishProcessingFn(parseError, segment);
-        }
-
-        finishProcessingFn(null, segment);
-      });
-    };
-  };
-  /**
-   * Response handler for segment-requests being sure to set the correct
-   * property depending on whether the segment is encryped or not
-   * Also records and keeps track of stats that are used for ABR purposes
-   *
-   * @param {Object} segment - a simplified copy of the segmentInfo object
-   *                           from SegmentLoader
-   * @param {Function} finishProcessingFn - a callback to execute to continue processing
-   *                                        this request
-   */
-
-
-  var handleSegmentResponse = function handleSegmentResponse(_ref3) {
-    var segment = _ref3.segment,
-        finishProcessingFn = _ref3.finishProcessingFn,
-        responseType = _ref3.responseType;
-    return function (error, request) {
-      var errorObj = handleErrors(error, request);
-
-      if (errorObj) {
-        return finishProcessingFn(errorObj, segment);
-      }
-
-      var newBytes = // although responseText "should" exist, this guard serves to prevent an error being
-      // thrown for two primary cases:
-      // 1. the mime type override stops working, or is not implemented for a specific
-      //    browser
-      // 2. when using mock XHR libraries like sinon that do not allow the override behavior
-      responseType === 'arraybuffer' || !request.responseText ? request.response : stringToArrayBuffer(request.responseText.substring(segment.lastReachedChar || 0));
-      segment.stats = getRequestStats(request);
-
-      if (segment.key) {
-        segment.encryptedBytes = new Uint8Array(newBytes);
-      } else {
-        segment.bytes = new Uint8Array(newBytes);
-      }
-
-      return finishProcessingFn(null, segment);
-    };
-  };
-
-  var transmuxAndNotify = function transmuxAndNotify(_ref4) {
-    var segment = _ref4.segment,
-        bytes = _ref4.bytes,
-        trackInfoFn = _ref4.trackInfoFn,
-        timingInfoFn = _ref4.timingInfoFn,
-        videoSegmentTimingInfoFn = _ref4.videoSegmentTimingInfoFn,
-        audioSegmentTimingInfoFn = _ref4.audioSegmentTimingInfoFn,
-        id3Fn = _ref4.id3Fn,
-        captionsFn = _ref4.captionsFn,
-        isEndOfTimeline = _ref4.isEndOfTimeline,
-        endedTimelineFn = _ref4.endedTimelineFn,
-        dataFn = _ref4.dataFn,
-        doneFn = _ref4.doneFn,
-        onTransmuxerLog = _ref4.onTransmuxerLog;
-    var fmp4Tracks = segment.map && segment.map.tracks || {};
-    var isMuxed = Boolean(fmp4Tracks.audio && fmp4Tracks.video); // Keep references to each function so we can null them out after we're done with them.
-    // One reason for this is that in the case of full segments, we want to trust start
-    // times from the probe, rather than the transmuxer.
-
-    var audioStartFn = timingInfoFn.bind(null, segment, 'audio', 'start');
-    var audioEndFn = timingInfoFn.bind(null, segment, 'audio', 'end');
-    var videoStartFn = timingInfoFn.bind(null, segment, 'video', 'start');
-    var videoEndFn = timingInfoFn.bind(null, segment, 'video', 'end');
-
-    var finish = function finish() {
-      return transmux({
-        bytes: bytes,
-        transmuxer: segment.transmuxer,
-        audioAppendStart: segment.audioAppendStart,
-        gopsToAlignWith: segment.gopsToAlignWith,
-        remux: isMuxed,
-        onData: function onData(result) {
-          result.type = result.type === 'combined' ? 'video' : result.type;
-          dataFn(segment, result);
-        },
-        onTrackInfo: function onTrackInfo(trackInfo) {
-          if (trackInfoFn) {
-            if (isMuxed) {
-              trackInfo.isMuxed = true;
-            }
-
-            trackInfoFn(segment, trackInfo);
-          }
-        },
-        onAudioTimingInfo: function onAudioTimingInfo(audioTimingInfo) {
-          // we only want the first start value we encounter
-          if (audioStartFn && typeof audioTimingInfo.start !== 'undefined') {
-            audioStartFn(audioTimingInfo.start);
-            audioStartFn = null;
-          } // we want to continually update the end time
-
-
-          if (audioEndFn && typeof audioTimingInfo.end !== 'undefined') {
-            audioEndFn(audioTimingInfo.end);
-          }
-        },
-        onVideoTimingInfo: function onVideoTimingInfo(videoTimingInfo) {
-          // we only want the first start value we encounter
-          if (videoStartFn && typeof videoTimingInfo.start !== 'undefined') {
-            videoStartFn(videoTimingInfo.start);
-            videoStartFn = null;
-          } // we want to continually update the end time
-
-
-          if (videoEndFn && typeof videoTimingInfo.end !== 'undefined') {
-            videoEndFn(videoTimingInfo.end);
-          }
-        },
-        onVideoSegmentTimingInfo: function onVideoSegmentTimingInfo(videoSegmentTimingInfo) {
-          videoSegmentTimingInfoFn(videoSegmentTimingInfo);
-        },
-        onAudioSegmentTimingInfo: function onAudioSegmentTimingInfo(audioSegmentTimingInfo) {
-          audioSegmentTimingInfoFn(audioSegmentTimingInfo);
-        },
-        onId3: function onId3(id3Frames, dispatchType) {
-          id3Fn(segment, id3Frames, dispatchType);
-        },
-        onCaptions: function onCaptions(captions) {
-          captionsFn(segment, [captions]);
-        },
-        isEndOfTimeline: isEndOfTimeline,
-        onEndedTimeline: function onEndedTimeline() {
-          endedTimelineFn();
-        },
-        onTransmuxerLog: onTransmuxerLog,
-        onDone: function onDone(result) {
-          if (!doneFn) {
-            return;
-          }
-
-          result.type = result.type === 'combined' ? 'video' : result.type;
-          doneFn(null, segment, result);
-        }
-      });
-    }; // In the transmuxer, we don't yet have the ability to extract a "proper" start time.
-    // Meaning cached frame data may corrupt our notion of where this segment
-    // really starts. To get around this, probe for the info needed.
-
-
-    workerCallback({
-      action: 'probeTs',
-      transmuxer: segment.transmuxer,
-      data: bytes,
-      baseStartTime: segment.baseStartTime,
-      callback: function callback(data) {
-        segment.bytes = bytes = data.data;
-        var probeResult = data.result;
-
-        if (probeResult) {
-          trackInfoFn(segment, {
-            hasAudio: probeResult.hasAudio,
-            hasVideo: probeResult.hasVideo,
-            isMuxed: isMuxed
-          });
-          trackInfoFn = null;
-
-          if (probeResult.hasAudio && !isMuxed) {
-            audioStartFn(probeResult.audioStart);
-          }
-
-          if (probeResult.hasVideo) {
-            videoStartFn(probeResult.videoStart);
-          }
-
-          audioStartFn = null;
-          videoStartFn = null;
-        }
-
-        finish();
-      }
-    });
-  };
-
-  var handleSegmentBytes = function handleSegmentBytes(_ref5) {
-    var segment = _ref5.segment,
-        bytes = _ref5.bytes,
-        trackInfoFn = _ref5.trackInfoFn,
-        timingInfoFn = _ref5.timingInfoFn,
-        videoSegmentTimingInfoFn = _ref5.videoSegmentTimingInfoFn,
-        audioSegmentTimingInfoFn = _ref5.audioSegmentTimingInfoFn,
-        id3Fn = _ref5.id3Fn,
-        captionsFn = _ref5.captionsFn,
-        isEndOfTimeline = _ref5.isEndOfTimeline,
-        endedTimelineFn = _ref5.endedTimelineFn,
-        dataFn = _ref5.dataFn,
-        doneFn = _ref5.doneFn,
-        onTransmuxerLog = _ref5.onTransmuxerLog;
-    var bytesAsUint8Array = new Uint8Array(bytes); // TODO:
-    // We should have a handler that fetches the number of bytes required
-    // to check if something is fmp4. This will allow us to save bandwidth
-    // because we can only blacklist a playlist and abort requests
-    // by codec after trackinfo triggers.
-
-    if (isLikelyFmp4MediaSegment(bytesAsUint8Array)) {
-      segment.isFmp4 = true;
-      var tracks = segment.map.tracks;
-      var trackInfo = {
-        isFmp4: true,
-        hasVideo: !!tracks.video,
-        hasAudio: !!tracks.audio
-      }; // if we have a audio track, with a codec that is not set to
-      // encrypted audio
-
-      if (tracks.audio && tracks.audio.codec && tracks.audio.codec !== 'enca') {
-        trackInfo.audioCodec = tracks.audio.codec;
-      } // if we have a video track, with a codec that is not set to
-      // encrypted video
-
-
-      if (tracks.video && tracks.video.codec && tracks.video.codec !== 'encv') {
-        trackInfo.videoCodec = tracks.video.codec;
-      }
-
-      if (tracks.video && tracks.audio) {
-        trackInfo.isMuxed = true;
-      } // since we don't support appending fmp4 data on progress, we know we have the full
-      // segment here
-
-
-      trackInfoFn(segment, trackInfo); // The probe doesn't provide the segment end time, so only callback with the start
-      // time. The end time can be roughly calculated by the receiver using the duration.
-      //
-      // Note that the start time returned by the probe reflects the baseMediaDecodeTime, as
-      // that is the true start of the segment (where the playback engine should begin
-      // decoding).
-
-      var finishLoading = function finishLoading(captions) {
-        // if the track still has audio at this point it is only possible
-        // for it to be audio only. See `tracks.video && tracks.audio` if statement
-        // above.
-        // we make sure to use segment.bytes here as that
-        dataFn(segment, {
-          data: bytesAsUint8Array,
-          type: trackInfo.hasAudio && !trackInfo.isMuxed ? 'audio' : 'video'
-        });
-
-        if (captions && captions.length) {
-          captionsFn(segment, captions);
-        }
-
-        doneFn(null, segment, {});
-      };
-
-      workerCallback({
-        action: 'probeMp4StartTime',
-        timescales: segment.map.timescales,
-        data: bytesAsUint8Array,
-        transmuxer: segment.transmuxer,
-        callback: function callback(_ref6) {
-          var data = _ref6.data,
-              startTime = _ref6.startTime; // transfer bytes back to us
-
-          bytes = data.buffer;
-          segment.bytes = bytesAsUint8Array = data;
-
-          if (trackInfo.hasAudio && !trackInfo.isMuxed) {
-            timingInfoFn(segment, 'audio', 'start', startTime);
-          }
-
-          if (trackInfo.hasVideo) {
-            timingInfoFn(segment, 'video', 'start', startTime);
-          } // Run through the CaptionParser in case there are captions.
-          // Initialize CaptionParser if it hasn't been yet
-
-
-          if (!tracks.video || !data.byteLength || !segment.transmuxer) {
-            finishLoading();
-            return;
-          }
-
-          workerCallback({
-            action: 'pushMp4Captions',
-            endAction: 'mp4Captions',
-            transmuxer: segment.transmuxer,
-            data: bytesAsUint8Array,
-            timescales: segment.map.timescales,
-            trackIds: [tracks.video.id],
-            callback: function callback(message) {
-              // transfer bytes back to us
-              bytes = message.data.buffer;
-              segment.bytes = bytesAsUint8Array = message.data;
-              message.logs.forEach(function (log) {
-                onTransmuxerLog(videojs.mergeOptions(log, {
-                  stream: 'mp4CaptionParser'
-                }));
-              });
-              finishLoading(message.captions);
-            }
-          });
-        }
-      });
-      return;
-    } // VTT or other segments that don't need processing
-
-
-    if (!segment.transmuxer) {
-      doneFn(null, segment, {});
-      return;
-    }
-
-    if (typeof segment.container === 'undefined') {
-      segment.container = detectContainerForBytes(bytesAsUint8Array);
-    }
-
-    if (segment.container !== 'ts' && segment.container !== 'aac') {
-      trackInfoFn(segment, {
-        hasAudio: false,
-        hasVideo: false
-      });
-      doneFn(null, segment, {});
-      return;
-    } // ts or aac
-
-
-    transmuxAndNotify({
-      segment: segment,
-      bytes: bytes,
-      trackInfoFn: trackInfoFn,
-      timingInfoFn: timingInfoFn,
-      videoSegmentTimingInfoFn: videoSegmentTimingInfoFn,
-      audioSegmentTimingInfoFn: audioSegmentTimingInfoFn,
-      id3Fn: id3Fn,
-      captionsFn: captionsFn,
-      isEndOfTimeline: isEndOfTimeline,
-      endedTimelineFn: endedTimelineFn,
-      dataFn: dataFn,
-      doneFn: doneFn,
-      onTransmuxerLog: onTransmuxerLog
-    });
-  };
-
-  var decrypt = function decrypt(_ref7, callback) {
-    var id = _ref7.id,
-        key = _ref7.key,
-        encryptedBytes = _ref7.encryptedBytes,
-        decryptionWorker = _ref7.decryptionWorker;
-
-    var decryptionHandler = function decryptionHandler(event) {
-      if (event.data.source === id) {
-        decryptionWorker.removeEventListener('message', decryptionHandler);
-        var decrypted = event.data.decrypted;
-        callback(new Uint8Array(decrypted.bytes, decrypted.byteOffset, decrypted.byteLength));
-      }
-    };
-
-    decryptionWorker.addEventListener('message', decryptionHandler);
-    var keyBytes;
-
-    if (key.bytes.slice) {
-      keyBytes = key.bytes.slice();
-    } else {
-      keyBytes = new Uint32Array(Array.prototype.slice.call(key.bytes));
-    } // incrementally decrypt the bytes
-
-
-    decryptionWorker.postMessage(createTransferableMessage({
-      source: id,
-      encrypted: encryptedBytes,
-      key: keyBytes,
-      iv: key.iv
-    }), [encryptedBytes.buffer, keyBytes.buffer]);
-  };
-  /**
-   * Decrypt the segment via the decryption web worker
-   *
-   * @param {WebWorker} decryptionWorker - a WebWorker interface to AES-128 decryption
-   *                                       routines
-   * @param {Object} segment - a simplified copy of the segmentInfo object
-   *                           from SegmentLoader
-   * @param {Function} trackInfoFn - a callback that receives track info
-   * @param {Function} timingInfoFn - a callback that receives timing info
-   * @param {Function} videoSegmentTimingInfoFn
-   *                   a callback that receives video timing info based on media times and
-   *                   any adjustments made by the transmuxer
-   * @param {Function} audioSegmentTimingInfoFn
-   *                   a callback that receives audio timing info based on media times and
-   *                   any adjustments made by the transmuxer
-   * @param {boolean}  isEndOfTimeline
-   *                   true if this segment represents the last segment in a timeline
-   * @param {Function} endedTimelineFn
-   *                   a callback made when a timeline is ended, will only be called if
-   *                   isEndOfTimeline is true
-   * @param {Function} dataFn - a callback that is executed when segment bytes are available
-   *                            and ready to use
-   * @param {Function} doneFn - a callback that is executed after decryption has completed
-   */
-
-
-  var decryptSegment = function decryptSegment(_ref8) {
-    var decryptionWorker = _ref8.decryptionWorker,
-        segment = _ref8.segment,
-        trackInfoFn = _ref8.trackInfoFn,
-        timingInfoFn = _ref8.timingInfoFn,
-        videoSegmentTimingInfoFn = _ref8.videoSegmentTimingInfoFn,
-        audioSegmentTimingInfoFn = _ref8.audioSegmentTimingInfoFn,
-        id3Fn = _ref8.id3Fn,
-        captionsFn = _ref8.captionsFn,
-        isEndOfTimeline = _ref8.isEndOfTimeline,
-        endedTimelineFn = _ref8.endedTimelineFn,
-        dataFn = _ref8.dataFn,
-        doneFn = _ref8.doneFn,
-        onTransmuxerLog = _ref8.onTransmuxerLog;
-    decrypt({
-      id: segment.requestId,
-      key: segment.key,
-      encryptedBytes: segment.encryptedBytes,
-      decryptionWorker: decryptionWorker
-    }, function (decryptedBytes) {
-      segment.bytes = decryptedBytes;
-      handleSegmentBytes({
-        segment: segment,
-        bytes: segment.bytes,
-        trackInfoFn: trackInfoFn,
-        timingInfoFn: timingInfoFn,
-        videoSegmentTimingInfoFn: videoSegmentTimingInfoFn,
-        audioSegmentTimingInfoFn: audioSegmentTimingInfoFn,
-        id3Fn: id3Fn,
-        captionsFn: captionsFn,
-        isEndOfTimeline: isEndOfTimeline,
-        endedTimelineFn: endedTimelineFn,
-        dataFn: dataFn,
-        doneFn: doneFn,
-        onTransmuxerLog: onTransmuxerLog
-      });
-    });
-  };
-  /**
-   * This function waits for all XHRs to finish (with either success or failure)
-   * before continueing processing via it's callback. The function gathers errors
-   * from each request into a single errors array so that the error status for
-   * each request can be examined later.
-   *
-   * @param {Object} activeXhrs - an object that tracks all XHR requests
-   * @param {WebWorker} decryptionWorker - a WebWorker interface to AES-128 decryption
-   *                                       routines
-   * @param {Function} trackInfoFn - a callback that receives track info
-   * @param {Function} timingInfoFn - a callback that receives timing info
-   * @param {Function} videoSegmentTimingInfoFn
-   *                   a callback that receives video timing info based on media times and
-   *                   any adjustments made by the transmuxer
-   * @param {Function} audioSegmentTimingInfoFn
-   *                   a callback that receives audio timing info based on media times and
-   *                   any adjustments made by the transmuxer
-   * @param {Function} id3Fn - a callback that receives ID3 metadata
-   * @param {Function} captionsFn - a callback that receives captions
-   * @param {boolean}  isEndOfTimeline
-   *                   true if this segment represents the last segment in a timeline
-   * @param {Function} endedTimelineFn
-   *                   a callback made when a timeline is ended, will only be called if
-   *                   isEndOfTimeline is true
-   * @param {Function} dataFn - a callback that is executed when segment bytes are available
-   *                            and ready to use
-   * @param {Function} doneFn - a callback that is executed after all resources have been
-   *                            downloaded and any decryption completed
-   */
-
-
-  var waitForCompletion = function waitForCompletion(_ref9) {
-    var activeXhrs = _ref9.activeXhrs,
-        decryptionWorker = _ref9.decryptionWorker,
-        trackInfoFn = _ref9.trackInfoFn,
-        timingInfoFn = _ref9.timingInfoFn,
-        videoSegmentTimingInfoFn = _ref9.videoSegmentTimingInfoFn,
-        audioSegmentTimingInfoFn = _ref9.audioSegmentTimingInfoFn,
-        id3Fn = _ref9.id3Fn,
-        captionsFn = _ref9.captionsFn,
-        isEndOfTimeline = _ref9.isEndOfTimeline,
-        endedTimelineFn = _ref9.endedTimelineFn,
-        dataFn = _ref9.dataFn,
-        doneFn = _ref9.doneFn,
-        onTransmuxerLog = _ref9.onTransmuxerLog;
-    var count = 0;
-    var didError = false;
-    return function (error, segment) {
-      if (didError) {
-        return;
-      }
-
-      if (error) {
-        didError = true; // If there are errors, we have to abort any outstanding requests
-
-        abortAll(activeXhrs); // Even though the requests above are aborted, and in theory we could wait until we
-        // handle the aborted events from those requests, there are some cases where we may
-        // never get an aborted event. For instance, if the network connection is lost and
-        // there were two requests, the first may have triggered an error immediately, while
-        // the second request remains unsent. In that case, the aborted algorithm will not
-        // trigger an abort: see https://xhr.spec.whatwg.org/#the-abort()-method
-        //
-        // We also can't rely on the ready state of the XHR, since the request that
-        // triggered the connection error may also show as a ready state of 0 (unsent).
-        // Therefore, we have to finish this group of requests immediately after the first
-        // seen error.
-
-        return doneFn(error, segment);
-      }
-
-      count += 1;
-
-      if (count === activeXhrs.length) {
-        var segmentFinish = function segmentFinish() {
-          if (segment.encryptedBytes) {
-            return decryptSegment({
-              decryptionWorker: decryptionWorker,
-              segment: segment,
-              trackInfoFn: trackInfoFn,
-              timingInfoFn: timingInfoFn,
-              videoSegmentTimingInfoFn: videoSegmentTimingInfoFn,
-              audioSegmentTimingInfoFn: audioSegmentTimingInfoFn,
-              id3Fn: id3Fn,
-              captionsFn: captionsFn,
-              isEndOfTimeline: isEndOfTimeline,
-              endedTimelineFn: endedTimelineFn,
-              dataFn: dataFn,
-              doneFn: doneFn,
-              onTransmuxerLog: onTransmuxerLog
-            });
-          } // Otherwise, everything is ready just continue
-
-
-          handleSegmentBytes({
-            segment: segment,
-            bytes: segment.bytes,
-            trackInfoFn: trackInfoFn,
-            timingInfoFn: timingInfoFn,
-            videoSegmentTimingInfoFn: videoSegmentTimingInfoFn,
-            audioSegmentTimingInfoFn: audioSegmentTimingInfoFn,
-            id3Fn: id3Fn,
-            captionsFn: captionsFn,
-            isEndOfTimeline: isEndOfTimeline,
-            endedTimelineFn: endedTimelineFn,
-            dataFn: dataFn,
-            doneFn: doneFn,
-            onTransmuxerLog: onTransmuxerLog
-          });
-        }; // Keep track of when *all* of the requests have completed
-
-
-        segment.endOfAllRequests = Date.now();
-
-        if (segment.map && segment.map.encryptedBytes && !segment.map.bytes) {
-          return decrypt({
-            decryptionWorker: decryptionWorker,
-            // add -init to the "id" to differentiate between segment
-            // and init segment decryption, just in case they happen
-            // at the same time at some point in the future.
-            id: segment.requestId + '-init',
-            encryptedBytes: segment.map.encryptedBytes,
-            key: segment.map.key
-          }, function (decryptedBytes) {
-            segment.map.bytes = decryptedBytes;
-            parseInitSegment(segment, function (parseError) {
-              if (parseError) {
-                abortAll(activeXhrs);
-                return doneFn(parseError, segment);
-              }
-
-              segmentFinish();
-            });
-          });
-        }
-
-        segmentFinish();
-      }
-    };
-  };
-  /**
-   * Calls the abort callback if any request within the batch was aborted. Will only call
-   * the callback once per batch of requests, even if multiple were aborted.
-   *
-   * @param {Object} loadendState - state to check to see if the abort function was called
-   * @param {Function} abortFn - callback to call for abort
-   */
-
-
-  var handleLoadEnd = function handleLoadEnd(_ref10) {
-    var loadendState = _ref10.loadendState,
-        abortFn = _ref10.abortFn;
-    return function (event) {
-      var request = event.target;
-
-      if (request.aborted && abortFn && !loadendState.calledAbortFn) {
-        abortFn();
-        loadendState.calledAbortFn = true;
-      }
-    };
-  };
-  /**
-   * Simple progress event callback handler that gathers some stats before
-   * executing a provided callback with the `segment` object
-   *
-   * @param {Object} segment - a simplified copy of the segmentInfo object
-   *                           from SegmentLoader
-   * @param {Function} progressFn - a callback that is executed each time a progress event
-   *                                is received
-   * @param {Function} trackInfoFn - a callback that receives track info
-   * @param {Function} timingInfoFn - a callback that receives timing info
-   * @param {Function} videoSegmentTimingInfoFn
-   *                   a callback that receives video timing info based on media times and
-   *                   any adjustments made by the transmuxer
-   * @param {Function} audioSegmentTimingInfoFn
-   *                   a callback that receives audio timing info based on media times and
-   *                   any adjustments made by the transmuxer
-   * @param {boolean}  isEndOfTimeline
-   *                   true if this segment represents the last segment in a timeline
-   * @param {Function} endedTimelineFn
-   *                   a callback made when a timeline is ended, will only be called if
-   *                   isEndOfTimeline is true
-   * @param {Function} dataFn - a callback that is executed when segment bytes are available
-   *                            and ready to use
-   * @param {Event} event - the progress event object from XMLHttpRequest
-   */
-
-
-  var handleProgress = function handleProgress(_ref11) {
-    var segment = _ref11.segment,
-        progressFn = _ref11.progressFn;
-    _ref11.trackInfoFn;
-    _ref11.timingInfoFn;
-    _ref11.videoSegmentTimingInfoFn;
-    _ref11.audioSegmentTimingInfoFn;
-    _ref11.id3Fn;
-    _ref11.captionsFn;
-    _ref11.isEndOfTimeline;
-    _ref11.endedTimelineFn;
-    _ref11.dataFn;
-    return function (event) {
-      var request = event.target;
-
-      if (request.aborted) {
-        return;
-      }
-
-      segment.stats = videojs.mergeOptions(segment.stats, getProgressStats(event)); // record the time that we receive the first byte of data
-
-      if (!segment.stats.firstBytesReceivedAt && segment.stats.bytesReceived) {
-        segment.stats.firstBytesReceivedAt = Date.now();
-      }
-
-      return progressFn(event, segment);
-    };
-  };
-  /**
-   * Load all resources and does any processing necessary for a media-segment
-   *
-   * Features:
-   *   decrypts the media-segment if it has a key uri and an iv
-   *   aborts *all* requests if *any* one request fails
-   *
-   * The segment object, at minimum, has the following format:
-   * {
-   *   resolvedUri: String,
-   *   [transmuxer]: Object,
-   *   [byterange]: {
-   *     offset: Number,
-   *     length: Number
-   *   },
-   *   [key]: {
-   *     resolvedUri: String
-   *     [byterange]: {
-   *       offset: Number,
-   *       length: Number
-   *     },
-   *     iv: {
-   *       bytes: Uint32Array
-   *     }
-   *   },
-   *   [map]: {
-   *     resolvedUri: String,
-   *     [byterange]: {
-   *       offset: Number,
-   *       length: Number
-   *     },
-   *     [bytes]: Uint8Array
-   *   }
-   * }
-   * ...where [name] denotes optional properties
-   *
-   * @param {Function} xhr - an instance of the xhr wrapper in xhr.js
-   * @param {Object} xhrOptions - the base options to provide to all xhr requests
-   * @param {WebWorker} decryptionWorker - a WebWorker interface to AES-128
-   *                                       decryption routines
-   * @param {Object} segment - a simplified copy of the segmentInfo object
-   *                           from SegmentLoader
-   * @param {Function} abortFn - a callback called (only once) if any piece of a request was
-   *                             aborted
-   * @param {Function} progressFn - a callback that receives progress events from the main
-   *                                segment's xhr request
-   * @param {Function} trackInfoFn - a callback that receives track info
-   * @param {Function} timingInfoFn - a callback that receives timing info
-   * @param {Function} videoSegmentTimingInfoFn
-   *                   a callback that receives video timing info based on media times and
-   *                   any adjustments made by the transmuxer
-   * @param {Function} audioSegmentTimingInfoFn
-   *                   a callback that receives audio timing info based on media times and
-   *                   any adjustments made by the transmuxer
-   * @param {Function} id3Fn - a callback that receives ID3 metadata
-   * @param {Function} captionsFn - a callback that receives captions
-   * @param {boolean}  isEndOfTimeline
-   *                   true if this segment represents the last segment in a timeline
-   * @param {Function} endedTimelineFn
-   *                   a callback made when a timeline is ended, will only be called if
-   *                   isEndOfTimeline is true
-   * @param {Function} dataFn - a callback that receives data from the main segment's xhr
-   *                            request, transmuxed if needed
-   * @param {Function} doneFn - a callback that is executed only once all requests have
-   *                            succeeded or failed
-   * @return {Function} a function that, when invoked, immediately aborts all
-   *                     outstanding requests
-   */
-
-
-  var mediaSegmentRequest = function mediaSegmentRequest(_ref12) {
-    var xhr = _ref12.xhr,
-        xhrOptions = _ref12.xhrOptions,
-        decryptionWorker = _ref12.decryptionWorker,
-        segment = _ref12.segment,
-        abortFn = _ref12.abortFn,
-        progressFn = _ref12.progressFn,
-        trackInfoFn = _ref12.trackInfoFn,
-        timingInfoFn = _ref12.timingInfoFn,
-        videoSegmentTimingInfoFn = _ref12.videoSegmentTimingInfoFn,
-        audioSegmentTimingInfoFn = _ref12.audioSegmentTimingInfoFn,
-        id3Fn = _ref12.id3Fn,
-        captionsFn = _ref12.captionsFn,
-        isEndOfTimeline = _ref12.isEndOfTimeline,
-        endedTimelineFn = _ref12.endedTimelineFn,
-        dataFn = _ref12.dataFn,
-        doneFn = _ref12.doneFn,
-        onTransmuxerLog = _ref12.onTransmuxerLog;
-    var activeXhrs = [];
-    var finishProcessingFn = waitForCompletion({
-      activeXhrs: activeXhrs,
-      decryptionWorker: decryptionWorker,
-      trackInfoFn: trackInfoFn,
-      timingInfoFn: timingInfoFn,
-      videoSegmentTimingInfoFn: videoSegmentTimingInfoFn,
-      audioSegmentTimingInfoFn: audioSegmentTimingInfoFn,
-      id3Fn: id3Fn,
-      captionsFn: captionsFn,
-      isEndOfTimeline: isEndOfTimeline,
-      endedTimelineFn: endedTimelineFn,
-      dataFn: dataFn,
-      doneFn: doneFn,
-      onTransmuxerLog: onTransmuxerLog
-    }); // optionally, request the decryption key
-
-    if (segment.key && !segment.key.bytes) {
-      var objects = [segment.key];
-
-      if (segment.map && !segment.map.bytes && segment.map.key && segment.map.key.resolvedUri === segment.key.resolvedUri) {
-        objects.push(segment.map.key);
-      }
-
-      var keyRequestOptions = videojs.mergeOptions(xhrOptions, {
-        uri: segment.key.resolvedUri,
-        responseType: 'arraybuffer'
-      });
-      var keyRequestCallback = handleKeyResponse(segment, objects, finishProcessingFn);
-      var keyXhr = xhr(keyRequestOptions, keyRequestCallback);
-      activeXhrs.push(keyXhr);
-    } // optionally, request the associated media init segment
-
-
-    if (segment.map && !segment.map.bytes) {
-      var differentMapKey = segment.map.key && (!segment.key || segment.key.resolvedUri !== segment.map.key.resolvedUri);
-
-      if (differentMapKey) {
-        var mapKeyRequestOptions = videojs.mergeOptions(xhrOptions, {
-          uri: segment.map.key.resolvedUri,
-          responseType: 'arraybuffer'
-        });
-        var mapKeyRequestCallback = handleKeyResponse(segment, [segment.map.key], finishProcessingFn);
-        var mapKeyXhr = xhr(mapKeyRequestOptions, mapKeyRequestCallback);
-        activeXhrs.push(mapKeyXhr);
-      }
-
-      var initSegmentOptions = videojs.mergeOptions(xhrOptions, {
-        uri: segment.map.resolvedUri,
-        responseType: 'arraybuffer',
-        headers: segmentXhrHeaders(segment.map)
-      });
-      var initSegmentRequestCallback = handleInitSegmentResponse({
-        segment: segment,
-        finishProcessingFn: finishProcessingFn
-      });
-      var initSegmentXhr = xhr(initSegmentOptions, initSegmentRequestCallback);
-      activeXhrs.push(initSegmentXhr);
-    }
-
-    var segmentRequestOptions = videojs.mergeOptions(xhrOptions, {
-      uri: segment.part && segment.part.resolvedUri || segment.resolvedUri,
-      responseType: 'arraybuffer',
-      headers: segmentXhrHeaders(segment)
-    });
-    var segmentRequestCallback = handleSegmentResponse({
-      segment: segment,
-      finishProcessingFn: finishProcessingFn,
-      responseType: segmentRequestOptions.responseType
-    });
-    var segmentXhr = xhr(segmentRequestOptions, segmentRequestCallback);
-    segmentXhr.addEventListener('progress', handleProgress({
-      segment: segment,
-      progressFn: progressFn,
-      trackInfoFn: trackInfoFn,
-      timingInfoFn: timingInfoFn,
-      videoSegmentTimingInfoFn: videoSegmentTimingInfoFn,
-      audioSegmentTimingInfoFn: audioSegmentTimingInfoFn,
-      id3Fn: id3Fn,
-      captionsFn: captionsFn,
-      isEndOfTimeline: isEndOfTimeline,
-      endedTimelineFn: endedTimelineFn,
-      dataFn: dataFn
-    }));
-    activeXhrs.push(segmentXhr); // since all parts of the request must be considered, but should not make callbacks
-    // multiple times, provide a shared state object
-
-    var loadendState = {};
-    activeXhrs.forEach(function (activeXhr) {
-      activeXhr.addEventListener('loadend', handleLoadEnd({
-        loadendState: loadendState,
-        abortFn: abortFn
-      }));
-    });
-    return function () {
-      return abortAll(activeXhrs);
-    };
-  };
-  /**
-   * @file - codecs.js - Handles tasks regarding codec strings such as translating them to
-   * codec strings, or translating codec strings into objects that can be examined.
-   */
-
-
-  var logFn$1 = logger('CodecUtils');
-  /**
-   * Returns a set of codec strings parsed from the playlist or the default
-   * codec strings if no codecs were specified in the playlist
-   *
-   * @param {Playlist} media the current media playlist
-   * @return {Object} an object with the video and audio codecs
-   */
-
-  var getCodecs = function getCodecs(media) {
-    // if the codecs were explicitly specified, use them instead of the
-    // defaults
-    var mediaAttributes = media.attributes || {};
-
-    if (mediaAttributes.CODECS) {
-      return parseCodecs(mediaAttributes.CODECS);
-    }
-  };
-
-  var isMaat = function isMaat(master, media) {
-    var mediaAttributes = media.attributes || {};
-    return master && master.mediaGroups && master.mediaGroups.AUDIO && mediaAttributes.AUDIO && master.mediaGroups.AUDIO[mediaAttributes.AUDIO];
-  };
-
-  var isMuxed = function isMuxed(master, media) {
-    if (!isMaat(master, media)) {
-      return true;
-    }
-
-    var mediaAttributes = media.attributes || {};
-    var audioGroup = master.mediaGroups.AUDIO[mediaAttributes.AUDIO];
-
-    for (var groupId in audioGroup) {
-      // If an audio group has a URI (the case for HLS, as HLS will use external playlists),
-      // or there are listed playlists (the case for DASH, as the manifest will have already
-      // provided all of the details necessary to generate the audio playlist, as opposed to
-      // HLS' externally requested playlists), then the content is demuxed.
-      if (!audioGroup[groupId].uri && !audioGroup[groupId].playlists) {
-        return true;
-      }
-    }
-
-    return false;
-  };
-
-  var unwrapCodecList = function unwrapCodecList(codecList) {
-    var codecs = {};
-    codecList.forEach(function (_ref) {
-      var mediaType = _ref.mediaType,
-          type = _ref.type,
-          details = _ref.details;
-      codecs[mediaType] = codecs[mediaType] || [];
-      codecs[mediaType].push(translateLegacyCodec("" + type + details));
-    });
-    Object.keys(codecs).forEach(function (mediaType) {
-      if (codecs[mediaType].length > 1) {
-        logFn$1("multiple " + mediaType + " codecs found as attributes: " + codecs[mediaType].join(', ') + ". Setting playlist codecs to null so that we wait for mux.js to probe segments for real codecs.");
-        codecs[mediaType] = null;
-        return;
-      }
-
-      codecs[mediaType] = codecs[mediaType][0];
-    });
-    return codecs;
-  };
-
-  var codecCount = function codecCount(codecObj) {
-    var count = 0;
-
-    if (codecObj.audio) {
-      count++;
-    }
-
-    if (codecObj.video) {
-      count++;
-    }
-
-    return count;
-  };
-  /**
-   * Calculates the codec strings for a working configuration of
-   * SourceBuffers to play variant streams in a master playlist. If
-   * there is no possible working configuration, an empty object will be
-   * returned.
-   *
-   * @param master {Object} the m3u8 object for the master playlist
-   * @param media {Object} the m3u8 object for the variant playlist
-   * @return {Object} the codec strings.
-   *
-   * @private
-   */
-
-
-  var codecsForPlaylist = function codecsForPlaylist(master, media) {
-    var mediaAttributes = media.attributes || {};
-    var codecInfo = unwrapCodecList(getCodecs(media) || []); // HLS with multiple-audio tracks must always get an audio codec.
-    // Put another way, there is no way to have a video-only multiple-audio HLS!
-
-    if (isMaat(master, media) && !codecInfo.audio) {
-      if (!isMuxed(master, media)) {
-        // It is possible for codecs to be specified on the audio media group playlist but
-        // not on the rendition playlist. This is mostly the case for DASH, where audio and
-        // video are always separate (and separately specified).
-        var defaultCodecs = unwrapCodecList(codecsFromDefault(master, mediaAttributes.AUDIO) || []);
-
-        if (defaultCodecs.audio) {
-          codecInfo.audio = defaultCodecs.audio;
-        }
-      }
-    }
-
-    return codecInfo;
-  };
-
-  var logFn = logger('PlaylistSelector');
-
-  var representationToString = function representationToString(representation) {
-    if (!representation || !representation.playlist) {
-      return;
-    }
-
-    var playlist = representation.playlist;
-    return JSON.stringify({
-      id: playlist.id,
-      bandwidth: representation.bandwidth,
-      width: representation.width,
-      height: representation.height,
-      codecs: playlist.attributes && playlist.attributes.CODECS || ''
-    });
-  }; // Utilities
-
-  /**
-   * Returns the CSS value for the specified property on an element
-   * using `getComputedStyle`. Firefox has a long-standing issue where
-   * getComputedStyle() may return null when running in an iframe with
-   * `display: none`.
-   *
-   * @see https://bugzilla.mozilla.org/show_bug.cgi?id=548397
-   * @param {HTMLElement} el the htmlelement to work on
-   * @param {string} the proprety to get the style for
-   */
-
-
-  var safeGetComputedStyle = function safeGetComputedStyle(el, property) {
-    if (!el) {
-      return '';
-    }
-
-    var result = window.getComputedStyle(el);
-
-    if (!result) {
-      return '';
-    }
-
-    return result[property];
-  };
-  /**
-   * Resuable stable sort function
-   *
-   * @param {Playlists} array
-   * @param {Function} sortFn Different comparators
-   * @function stableSort
-   */
-
-
-  var stableSort = function stableSort(array, sortFn) {
-    var newArray = array.slice();
-    array.sort(function (left, right) {
-      var cmp = sortFn(left, right);
-
-      if (cmp === 0) {
-        return newArray.indexOf(left) - newArray.indexOf(right);
-      }
-
-      return cmp;
-    });
-  };
-  /**
-   * A comparator function to sort two playlist object by bandwidth.
-   *
-   * @param {Object} left a media playlist object
-   * @param {Object} right a media playlist object
-   * @return {number} Greater than zero if the bandwidth attribute of
-   * left is greater than the corresponding attribute of right. Less
-   * than zero if the bandwidth of right is greater than left and
-   * exactly zero if the two are equal.
-   */
-
-
-  var comparePlaylistBandwidth = function comparePlaylistBandwidth(left, right) {
-    var leftBandwidth;
-    var rightBandwidth;
-
-    if (left.attributes.BANDWIDTH) {
-      leftBandwidth = left.attributes.BANDWIDTH;
-    }
-
-    leftBandwidth = leftBandwidth || window.Number.MAX_VALUE;
-
-    if (right.attributes.BANDWIDTH) {
-      rightBandwidth = right.attributes.BANDWIDTH;
-    }
-
-    rightBandwidth = rightBandwidth || window.Number.MAX_VALUE;
-    return leftBandwidth - rightBandwidth;
-  };
-  /**
-   * A comparator function to sort two playlist object by resolution (width).
-   *
-   * @param {Object} left a media playlist object
-   * @param {Object} right a media playlist object
-   * @return {number} Greater than zero if the resolution.width attribute of
-   * left is greater than the corresponding attribute of right. Less
-   * than zero if the resolution.width of right is greater than left and
-   * exactly zero if the two are equal.
-   */
-
-
-  var comparePlaylistResolution = function comparePlaylistResolution(left, right) {
-    var leftWidth;
-    var rightWidth;
-
-    if (left.attributes.RESOLUTION && left.attributes.RESOLUTION.width) {
-      leftWidth = left.attributes.RESOLUTION.width;
-    }
-
-    leftWidth = leftWidth || window.Number.MAX_VALUE;
-
-    if (right.attributes.RESOLUTION && right.attributes.RESOLUTION.width) {
-      rightWidth = right.attributes.RESOLUTION.width;
-    }
-
-    rightWidth = rightWidth || window.Number.MAX_VALUE; // NOTE - Fallback to bandwidth sort as appropriate in cases where multiple renditions
-    // have the same media dimensions/ resolution
-
-    if (leftWidth === rightWidth && left.attributes.BANDWIDTH && right.attributes.BANDWIDTH) {
-      return left.attributes.BANDWIDTH - right.attributes.BANDWIDTH;
-    }
-
-    return leftWidth - rightWidth;
-  };
-  /**
-   * Chooses the appropriate media playlist based on bandwidth and player size
-   *
-   * @param {Object} master
-   *        Object representation of the master manifest
-   * @param {number} playerBandwidth
-   *        Current calculated bandwidth of the player
-   * @param {number} playerWidth
-   *        Current width of the player element (should account for the device pixel ratio)
-   * @param {number} playerHeight
-   *        Current height of the player element (should account for the device pixel ratio)
-   * @param {boolean} limitRenditionByPlayerDimensions
-   *        True if the player width and height should be used during the selection, false otherwise
-   * @param {Object} masterPlaylistController
-   *        the current masterPlaylistController object
-   * @return {Playlist} the highest bitrate playlist less than the
-   * currently detected bandwidth, accounting for some amount of
-   * bandwidth variance
-   */
-
-
-  var simpleSelector = function simpleSelector(master, playerBandwidth, playerWidth, playerHeight, limitRenditionByPlayerDimensions, masterPlaylistController) {
-    // If we end up getting called before `master` is available, exit early
-    if (!master) {
-      return;
-    }
-
-    var options = {
-      bandwidth: playerBandwidth,
-      width: playerWidth,
-      height: playerHeight,
-      limitRenditionByPlayerDimensions: limitRenditionByPlayerDimensions
-    };
-    var playlists = master.playlists; // if playlist is audio only, select between currently active audio group playlists.
-
-    if (Playlist.isAudioOnly(master)) {
-      playlists = masterPlaylistController.getAudioTrackPlaylists_(); // add audioOnly to options so that we log audioOnly: true
-      // at the buttom of this function for debugging.
-
-      options.audioOnly = true;
-    } // convert the playlists to an intermediary representation to make comparisons easier
-
-
-    var sortedPlaylistReps = playlists.map(function (playlist) {
-      var bandwidth;
-      var width = playlist.attributes && playlist.attributes.RESOLUTION && playlist.attributes.RESOLUTION.width;
-      var height = playlist.attributes && playlist.attributes.RESOLUTION && playlist.attributes.RESOLUTION.height;
-      bandwidth = playlist.attributes && playlist.attributes.BANDWIDTH;
-      bandwidth = bandwidth || window.Number.MAX_VALUE;
-      return {
-        bandwidth: bandwidth,
-        width: width,
-        height: height,
-        playlist: playlist
-      };
-    });
-    stableSort(sortedPlaylistReps, function (left, right) {
-      return left.bandwidth - right.bandwidth;
-    }); // filter out any playlists that have been excluded due to
-    // incompatible configurations
-
-    sortedPlaylistReps = sortedPlaylistReps.filter(function (rep) {
-      return !Playlist.isIncompatible(rep.playlist);
-    }); // filter out any playlists that have been disabled manually through the representations
-    // api or blacklisted temporarily due to playback errors.
-
-    var enabledPlaylistReps = sortedPlaylistReps.filter(function (rep) {
-      return Playlist.isEnabled(rep.playlist);
-    });
-
-    if (!enabledPlaylistReps.length) {
-      // if there are no enabled playlists, then they have all been blacklisted or disabled
-      // by the user through the representations api. In this case, ignore blacklisting and
-      // fallback to what the user wants by using playlists the user has not disabled.
-      enabledPlaylistReps = sortedPlaylistReps.filter(function (rep) {
-        return !Playlist.isDisabled(rep.playlist);
-      });
-    } // filter out any variant that has greater effective bitrate
-    // than the current estimated bandwidth
-
-
-    var bandwidthPlaylistReps = enabledPlaylistReps.filter(function (rep) {
-      return rep.bandwidth * Config.BANDWIDTH_VARIANCE < playerBandwidth;
-    });
-    var highestRemainingBandwidthRep = bandwidthPlaylistReps[bandwidthPlaylistReps.length - 1]; // get all of the renditions with the same (highest) bandwidth
-    // and then taking the very first element
-
-    var bandwidthBestRep = bandwidthPlaylistReps.filter(function (rep) {
-      return rep.bandwidth === highestRemainingBandwidthRep.bandwidth;
-    })[0]; // if we're not going to limit renditions by player size, make an early decision.
-
-    if (limitRenditionByPlayerDimensions === false) {
-      var _chosenRep = bandwidthBestRep || enabledPlaylistReps[0] || sortedPlaylistReps[0];
-
-      if (_chosenRep && _chosenRep.playlist) {
-        var type = 'sortedPlaylistReps';
-
-        if (bandwidthBestRep) {
-          type = 'bandwidthBestRep';
-        }
-
-        if (enabledPlaylistReps[0]) {
-          type = 'enabledPlaylistReps';
-        }
-
-        logFn("choosing " + representationToString(_chosenRep) + " using " + type + " with options", options);
-        return _chosenRep.playlist;
-      }
-
-      logFn('could not choose a playlist with options', options);
-      return null;
-    } // filter out playlists without resolution information
-
-
-    var haveResolution = bandwidthPlaylistReps.filter(function (rep) {
-      return rep.width && rep.height;
-    }); // sort variants by resolution
-
-    stableSort(haveResolution, function (left, right) {
-      return left.width - right.width;
-    }); // if we have the exact resolution as the player use it
-
-    var resolutionBestRepList = haveResolution.filter(function (rep) {
-      return rep.width === playerWidth && rep.height === playerHeight;
-    });
-    highestRemainingBandwidthRep = resolutionBestRepList[resolutionBestRepList.length - 1]; // ensure that we pick the highest bandwidth variant that have exact resolution
-
-    var resolutionBestRep = resolutionBestRepList.filter(function (rep) {
-      return rep.bandwidth === highestRemainingBandwidthRep.bandwidth;
-    })[0];
-    var resolutionPlusOneList;
-    var resolutionPlusOneSmallest;
-    var resolutionPlusOneRep; // find the smallest variant that is larger than the player
-    // if there is no match of exact resolution
-
-    if (!resolutionBestRep) {
-      resolutionPlusOneList = haveResolution.filter(function (rep) {
-        return rep.width > playerWidth || rep.height > playerHeight;
-      }); // find all the variants have the same smallest resolution
-
-      resolutionPlusOneSmallest = resolutionPlusOneList.filter(function (rep) {
-        return rep.width === resolutionPlusOneList[0].width && rep.height === resolutionPlusOneList[0].height;
-      }); // ensure that we also pick the highest bandwidth variant that
-      // is just-larger-than the video player
-
-      highestRemainingBandwidthRep = resolutionPlusOneSmallest[resolutionPlusOneSmallest.length - 1];
-      resolutionPlusOneRep = resolutionPlusOneSmallest.filter(function (rep) {
-        return rep.bandwidth === highestRemainingBandwidthRep.bandwidth;
-      })[0];
-    }
-
-    var leastPixelDiffRep; // If this selector proves to be better than others,
-    // resolutionPlusOneRep and resolutionBestRep and all
-    // the code involving them should be removed.
-
-    if (masterPlaylistController.experimentalLeastPixelDiffSelector) {
-      // find the variant that is closest to the player's pixel size
-      var leastPixelDiffList = haveResolution.map(function (rep) {
-        rep.pixelDiff = Math.abs(rep.width - playerWidth) + Math.abs(rep.height - playerHeight);
-        return rep;
-      }); // get the highest bandwidth, closest resolution playlist
-
-      stableSort(leastPixelDiffList, function (left, right) {
-        // sort by highest bandwidth if pixelDiff is the same
-        if (left.pixelDiff === right.pixelDiff) {
-          return right.bandwidth - left.bandwidth;
-        }
-
-        return left.pixelDiff - right.pixelDiff;
-      });
-      leastPixelDiffRep = leastPixelDiffList[0];
-    } // fallback chain of variants
-
-
-    var chosenRep = leastPixelDiffRep || resolutionPlusOneRep || resolutionBestRep || bandwidthBestRep || enabledPlaylistReps[0] || sortedPlaylistReps[0];
-
-    if (chosenRep && chosenRep.playlist) {
-      var _type = 'sortedPlaylistReps';
-
-      if (leastPixelDiffRep) {
-        _type = 'leastPixelDiffRep';
-      } else if (resolutionPlusOneRep) {
-        _type = 'resolutionPlusOneRep';
-      } else if (resolutionBestRep) {
-        _type = 'resolutionBestRep';
-      } else if (bandwidthBestRep) {
-        _type = 'bandwidthBestRep';
-      } else if (enabledPlaylistReps[0]) {
-        _type = 'enabledPlaylistReps';
-      }
-
-      logFn("choosing " + representationToString(chosenRep) + " using " + _type + " with options", options);
-      return chosenRep.playlist;
-    }
-
-    logFn('could not choose a playlist with options', options);
-    return null;
-  };
-  /**
-   * Chooses the appropriate media playlist based on the most recent
-   * bandwidth estimate and the player size.
-   *
-   * Expects to be called within the context of an instance of VhsHandler
-   *
-   * @return {Playlist} the highest bitrate playlist less than the
-   * currently detected bandwidth, accounting for some amount of
-   * bandwidth variance
-   */
-
-
-  var lastBandwidthSelector = function lastBandwidthSelector() {
-    var pixelRatio = this.useDevicePixelRatio ? window.devicePixelRatio || 1 : 1;
-    return simpleSelector(this.playlists.master, this.systemBandwidth, parseInt(safeGetComputedStyle(this.tech_.el(), 'width'), 10) * pixelRatio, parseInt(safeGetComputedStyle(this.tech_.el(), 'height'), 10) * pixelRatio, this.limitRenditionByPlayerDimensions, this.masterPlaylistController_);
-  };
-  /**
-   * Chooses the appropriate media playlist based on an
-   * exponential-weighted moving average of the bandwidth after
-   * filtering for player size.
-   *
-   * Expects to be called within the context of an instance of VhsHandler
-   *
-   * @param {number} decay - a number between 0 and 1. Higher values of
-   * this parameter will cause previous bandwidth estimates to lose
-   * significance more quickly.
-   * @return {Function} a function which can be invoked to create a new
-   * playlist selector function.
-   * @see https://en.wikipedia.org/wiki/Moving_average#Exponential_moving_average
-   */
-
-
-  var movingAverageBandwidthSelector = function movingAverageBandwidthSelector(decay) {
-    var average = -1;
-    var lastSystemBandwidth = -1;
-
-    if (decay < 0 || decay > 1) {
-      throw new Error('Moving average bandwidth decay must be between 0 and 1.');
-    }
-
-    return function () {
-      var pixelRatio = this.useDevicePixelRatio ? window.devicePixelRatio || 1 : 1;
-
-      if (average < 0) {
-        average = this.systemBandwidth;
-        lastSystemBandwidth = this.systemBandwidth;
-      } // stop the average value from decaying for every 250ms
-      // when the systemBandwidth is constant
-      // and
-      // stop average from setting to a very low value when the
-      // systemBandwidth becomes 0 in case of chunk cancellation
-
-
-      if (this.systemBandwidth > 0 && this.systemBandwidth !== lastSystemBandwidth) {
-        average = decay * this.systemBandwidth + (1 - decay) * average;
-        lastSystemBandwidth = this.systemBandwidth;
-      }
-
-      return simpleSelector(this.playlists.master, average, parseInt(safeGetComputedStyle(this.tech_.el(), 'width'), 10) * pixelRatio, parseInt(safeGetComputedStyle(this.tech_.el(), 'height'), 10) * pixelRatio, this.limitRenditionByPlayerDimensions, this.masterPlaylistController_);
-    };
-  };
-  /**
-   * Chooses the appropriate media playlist based on the potential to rebuffer
-   *
-   * @param {Object} settings
-   *        Object of information required to use this selector
-   * @param {Object} settings.master
-   *        Object representation of the master manifest
-   * @param {number} settings.currentTime
-   *        The current time of the player
-   * @param {number} settings.bandwidth
-   *        Current measured bandwidth
-   * @param {number} settings.duration
-   *        Duration of the media
-   * @param {number} settings.segmentDuration
-   *        Segment duration to be used in round trip time calculations
-   * @param {number} settings.timeUntilRebuffer
-   *        Time left in seconds until the player has to rebuffer
-   * @param {number} settings.currentTimeline
-   *        The current timeline segments are being loaded from
-   * @param {SyncController} settings.syncController
-   *        SyncController for determining if we have a sync point for a given playlist
-   * @return {Object|null}
-   *         {Object} return.playlist
-   *         The highest bandwidth playlist with the least amount of rebuffering
-   *         {Number} return.rebufferingImpact
-   *         The amount of time in seconds switching to this playlist will rebuffer. A
-   *         negative value means that switching will cause zero rebuffering.
-   */
-
-
-  var minRebufferMaxBandwidthSelector = function minRebufferMaxBandwidthSelector(settings) {
-    var master = settings.master,
-        currentTime = settings.currentTime,
-        bandwidth = settings.bandwidth,
-        duration = settings.duration,
-        segmentDuration = settings.segmentDuration,
-        timeUntilRebuffer = settings.timeUntilRebuffer,
-        currentTimeline = settings.currentTimeline,
-        syncController = settings.syncController; // filter out any playlists that have been excluded due to
-    // incompatible configurations
-
-    var compatiblePlaylists = master.playlists.filter(function (playlist) {
-      return !Playlist.isIncompatible(playlist);
-    }); // filter out any playlists that have been disabled manually through the representations
-    // api or blacklisted temporarily due to playback errors.
-
-    var enabledPlaylists = compatiblePlaylists.filter(Playlist.isEnabled);
-
-    if (!enabledPlaylists.length) {
-      // if there are no enabled playlists, then they have all been blacklisted or disabled
-      // by the user through the representations api. In this case, ignore blacklisting and
-      // fallback to what the user wants by using playlists the user has not disabled.
-      enabledPlaylists = compatiblePlaylists.filter(function (playlist) {
-        return !Playlist.isDisabled(playlist);
-      });
-    }
-
-    var bandwidthPlaylists = enabledPlaylists.filter(Playlist.hasAttribute.bind(null, 'BANDWIDTH'));
-    var rebufferingEstimates = bandwidthPlaylists.map(function (playlist) {
-      var syncPoint = syncController.getSyncPoint(playlist, duration, currentTimeline, currentTime); // If there is no sync point for this playlist, switching to it will require a
-      // sync request first. This will double the request time
-
-      var numRequests = syncPoint ? 1 : 2;
-      var requestTimeEstimate = Playlist.estimateSegmentRequestTime(segmentDuration, bandwidth, playlist);
-      var rebufferingImpact = requestTimeEstimate * numRequests - timeUntilRebuffer;
-      return {
-        playlist: playlist,
-        rebufferingImpact: rebufferingImpact
-      };
-    });
-    var noRebufferingPlaylists = rebufferingEstimates.filter(function (estimate) {
-      return estimate.rebufferingImpact <= 0;
-    }); // Sort by bandwidth DESC
-
-    stableSort(noRebufferingPlaylists, function (a, b) {
-      return comparePlaylistBandwidth(b.playlist, a.playlist);
-    });
-
-    if (noRebufferingPlaylists.length) {
-      return noRebufferingPlaylists[0];
-    }
-
-    stableSort(rebufferingEstimates, function (a, b) {
-      return a.rebufferingImpact - b.rebufferingImpact;
-    });
-    return rebufferingEstimates[0] || null;
-  };
-  /**
-   * Chooses the appropriate media playlist, which in this case is the lowest bitrate
-   * one with video.  If no renditions with video exist, return the lowest audio rendition.
-   *
-   * Expects to be called within the context of an instance of VhsHandler
-   *
-   * @return {Object|null}
-   *         {Object} return.playlist
-   *         The lowest bitrate playlist that contains a video codec.  If no such rendition
-   *         exists pick the lowest audio rendition.
-   */
-
-
-  var lowestBitrateCompatibleVariantSelector = function lowestBitrateCompatibleVariantSelector() {
-    var _this = this; // filter out any playlists that have been excluded due to
-    // incompatible configurations or playback errors
-
-
-    var playlists = this.playlists.master.playlists.filter(Playlist.isEnabled); // Sort ascending by bitrate
-
-    stableSort(playlists, function (a, b) {
-      return comparePlaylistBandwidth(a, b);
-    }); // Parse and assume that playlists with no video codec have no video
-    // (this is not necessarily true, although it is generally true).
-    //
-    // If an entire manifest has no valid videos everything will get filtered
-    // out.
-
-    var playlistsWithVideo = playlists.filter(function (playlist) {
-      return !!codecsForPlaylist(_this.playlists.master, playlist).video;
-    });
-    return playlistsWithVideo[0] || null;
-  };
-  /**
-   * Combine all segments into a single Uint8Array
-   *
-   * @param {Object} segmentObj
-   * @return {Uint8Array} concatenated bytes
-   * @private
-   */
-
-
-  var concatSegments = function concatSegments(segmentObj) {
-    var offset = 0;
-    var tempBuffer;
-
-    if (segmentObj.bytes) {
-      tempBuffer = new Uint8Array(segmentObj.bytes); // combine the individual segments into one large typed-array
-
-      segmentObj.segments.forEach(function (segment) {
-        tempBuffer.set(segment, offset);
-        offset += segment.byteLength;
-      });
-    }
-
-    return tempBuffer;
-  };
-  /**
-   * @file text-tracks.js
-   */
-
-  /**
-   * Create captions text tracks on video.js if they do not exist
-   *
-   * @param {Object} inbandTextTracks a reference to current inbandTextTracks
-   * @param {Object} tech the video.js tech
-   * @param {Object} captionStream the caption stream to create
-   * @private
-   */
-
-
-  var createCaptionsTrackIfNotExists = function createCaptionsTrackIfNotExists(inbandTextTracks, tech, captionStream) {
-    if (!inbandTextTracks[captionStream]) {
-      tech.trigger({
-        type: 'usage',
-        name: 'vhs-608'
-      });
-      tech.trigger({
-        type: 'usage',
-        name: 'hls-608'
-      });
-      var instreamId = captionStream; // we need to translate SERVICEn for 708 to how mux.js currently labels them
-
-      if (/^cc708_/.test(captionStream)) {
-        instreamId = 'SERVICE' + captionStream.split('_')[1];
-      }
-
-      var track = tech.textTracks().getTrackById(instreamId);
-
-      if (track) {
-        // Resuse an existing track with a CC# id because this was
-        // very likely created by videojs-contrib-hls from information
-        // in the m3u8 for us to use
-        inbandTextTracks[captionStream] = track;
-      } else {
-        // This section gets called when we have caption services that aren't specified in the manifest.
-        // Manifest level caption services are handled in media-groups.js under CLOSED-CAPTIONS.
-        var captionServices = tech.options_.vhs && tech.options_.vhs.captionServices || {};
-        var label = captionStream;
-        var language = captionStream;
-        var def = false;
-        var captionService = captionServices[instreamId];
-
-        if (captionService) {
-          label = captionService.label;
-          language = captionService.language;
-          def = captionService["default"];
-        } // Otherwise, create a track with the default `CC#` label and
-        // without a language
-
-
-        inbandTextTracks[captionStream] = tech.addRemoteTextTrack({
-          kind: 'captions',
-          id: instreamId,
-          // TODO: investigate why this doesn't seem to turn the caption on by default
-          "default": def,
-          label: label,
-          language: language
-        }, false).track;
-      }
-    }
-  };
-  /**
-   * Add caption text track data to a source handler given an array of captions
-   *
-   * @param {Object}
-   *   @param {Object} inbandTextTracks the inband text tracks
-   *   @param {number} timestampOffset the timestamp offset of the source buffer
-   *   @param {Array} captionArray an array of caption data
-   * @private
-   */
-
-
-  var addCaptionData = function addCaptionData(_ref) {
-    var inbandTextTracks = _ref.inbandTextTracks,
-        captionArray = _ref.captionArray,
-        timestampOffset = _ref.timestampOffset;
-
-    if (!captionArray) {
-      return;
-    }
-
-    var Cue = window.WebKitDataCue || window.VTTCue;
-    captionArray.forEach(function (caption) {
-      var track = caption.stream;
-      inbandTextTracks[track].addCue(new Cue(caption.startTime + timestampOffset, caption.endTime + timestampOffset, caption.text));
-    });
-  };
-  /**
-   * Define properties on a cue for backwards compatability,
-   * but warn the user that the way that they are using it
-   * is depricated and will be removed at a later date.
-   *
-   * @param {Cue} cue the cue to add the properties on
-   * @private
-   */
-
-
-  var deprecateOldCue = function deprecateOldCue(cue) {
-    Object.defineProperties(cue.frame, {
-      id: {
-        get: function get() {
-          videojs.log.warn('cue.frame.id is deprecated. Use cue.value.key instead.');
-          return cue.value.key;
-        }
-      },
-      value: {
-        get: function get() {
-          videojs.log.warn('cue.frame.value is deprecated. Use cue.value.data instead.');
-          return cue.value.data;
-        }
-      },
-      privateData: {
-        get: function get() {
-          videojs.log.warn('cue.frame.privateData is deprecated. Use cue.value.data instead.');
-          return cue.value.data;
-        }
-      }
-    });
-  };
-  /**
-   * Add metadata text track data to a source handler given an array of metadata
-   *
-   * @param {Object}
-   *   @param {Object} inbandTextTracks the inband text tracks
-   *   @param {Array} metadataArray an array of meta data
-   *   @param {number} timestampOffset the timestamp offset of the source buffer
-   *   @param {number} videoDuration the duration of the video
-   * @private
-   */
-
-
-  var addMetadata = function addMetadata(_ref2) {
-    var inbandTextTracks = _ref2.inbandTextTracks,
-        metadataArray = _ref2.metadataArray,
-        timestampOffset = _ref2.timestampOffset,
-        videoDuration = _ref2.videoDuration;
-
-    if (!metadataArray) {
-      return;
-    }
-
-    var Cue = window.WebKitDataCue || window.VTTCue;
-    var metadataTrack = inbandTextTracks.metadataTrack_;
-
-    if (!metadataTrack) {
-      return;
-    }
-
-    metadataArray.forEach(function (metadata) {
-      var time = metadata.cueTime + timestampOffset; // if time isn't a finite number between 0 and Infinity, like NaN,
-      // ignore this bit of metadata.
-      // This likely occurs when you have an non-timed ID3 tag like TIT2,
-      // which is the "Title/Songname/Content description" frame
-
-      if (typeof time !== 'number' || window.isNaN(time) || time < 0 || !(time < Infinity)) {
-        return;
-      }
-
-      metadata.frames.forEach(function (frame) {
-        var cue = new Cue(time, time, frame.value || frame.url || frame.data || '');
-        cue.frame = frame;
-        cue.value = frame;
-        deprecateOldCue(cue);
-        metadataTrack.addCue(cue);
-      });
-    });
-
-    if (!metadataTrack.cues || !metadataTrack.cues.length) {
-      return;
-    } // Updating the metadeta cues so that
-    // the endTime of each cue is the startTime of the next cue
-    // the endTime of last cue is the duration of the video
-
-
-    var cues = metadataTrack.cues;
-    var cuesArray = []; // Create a copy of the TextTrackCueList...
-    // ...disregarding cues with a falsey value
-
-    for (var i = 0; i < cues.length; i++) {
-      if (cues[i]) {
-        cuesArray.push(cues[i]);
-      }
-    } // Group cues by their startTime value
-
-
-    var cuesGroupedByStartTime = cuesArray.reduce(function (obj, cue) {
-      var timeSlot = obj[cue.startTime] || [];
-      timeSlot.push(cue);
-      obj[cue.startTime] = timeSlot;
-      return obj;
-    }, {}); // Sort startTimes by ascending order
-
-    var sortedStartTimes = Object.keys(cuesGroupedByStartTime).sort(function (a, b) {
-      return Number(a) - Number(b);
-    }); // Map each cue group's endTime to the next group's startTime
-
-    sortedStartTimes.forEach(function (startTime, idx) {
-      var cueGroup = cuesGroupedByStartTime[startTime];
-      var nextTime = Number(sortedStartTimes[idx + 1]) || videoDuration; // Map each cue's endTime the next group's startTime
-
-      cueGroup.forEach(function (cue) {
-        cue.endTime = nextTime;
-      });
-    });
-  };
-  /**
-   * Create metadata text track on video.js if it does not exist
-   *
-   * @param {Object} inbandTextTracks a reference to current inbandTextTracks
-   * @param {string} dispatchType the inband metadata track dispatch type
-   * @param {Object} tech the video.js tech
-   * @private
-   */
-
-
-  var createMetadataTrackIfNotExists = function createMetadataTrackIfNotExists(inbandTextTracks, dispatchType, tech) {
-    if (inbandTextTracks.metadataTrack_) {
-      return;
-    }
-
-    inbandTextTracks.metadataTrack_ = tech.addRemoteTextTrack({
-      kind: 'metadata',
-      label: 'Timed Metadata'
-    }, false).track;
-    inbandTextTracks.metadataTrack_.inBandMetadataTrackDispatchType = dispatchType;
-  };
-  /**
-   * Remove cues from a track on video.js.
-   *
-   * @param {Double} start start of where we should remove the cue
-   * @param {Double} end end of where the we should remove the cue
-   * @param {Object} track the text track to remove the cues from
-   * @private
-   */
-
-
-  var removeCuesFromTrack = function removeCuesFromTrack(start, end, track) {
-    var i;
-    var cue;
-
-    if (!track) {
-      return;
-    }
-
-    if (!track.cues) {
-      return;
-    }
-
-    i = track.cues.length;
-
-    while (i--) {
-      cue = track.cues[i]; // Remove any cue within the provided start and end time
-
-      if (cue.startTime >= start && cue.endTime <= end) {
-        track.removeCue(cue);
-      }
-    }
-  };
-  /**
-   * Remove duplicate cues from a track on video.js (a cue is considered a
-   * duplicate if it has the same time interval and text as another)
-   *
-   * @param {Object} track the text track to remove the duplicate cues from
-   * @private
-   */
-
-
-  var removeDuplicateCuesFromTrack = function removeDuplicateCuesFromTrack(track) {
-    var cues = track.cues;
-
-    if (!cues) {
-      return;
-    }
-
-    for (var i = 0; i < cues.length; i++) {
-      var duplicates = [];
-      var occurrences = 0;
-
-      for (var j = 0; j < cues.length; j++) {
-        if (cues[i].startTime === cues[j].startTime && cues[i].endTime === cues[j].endTime && cues[i].text === cues[j].text) {
-          occurrences++;
-
-          if (occurrences > 1) {
-            duplicates.push(cues[j]);
-          }
-        }
-      }
-
-      if (duplicates.length) {
-        duplicates.forEach(function (dupe) {
-          return track.removeCue(dupe);
-        });
-      }
-    }
-  };
-  /**
-   * Returns a list of gops in the buffer that have a pts value of 3 seconds or more in
-   * front of current time.
-   *
-   * @param {Array} buffer
-   *        The current buffer of gop information
-   * @param {number} currentTime
-   *        The current time
-   * @param {Double} mapping
-   *        Offset to map display time to stream presentation time
-   * @return {Array}
-   *         List of gops considered safe to append over
-   */
-
-
-  var gopsSafeToAlignWith = function gopsSafeToAlignWith(buffer, currentTime, mapping) {
-    if (typeof currentTime === 'undefined' || currentTime === null || !buffer.length) {
-      return [];
-    } // pts value for current time + 3 seconds to give a bit more wiggle room
-
-
-    var currentTimePts = Math.ceil((currentTime - mapping + 3) * clock_1);
-    var i;
-
-    for (i = 0; i < buffer.length; i++) {
-      if (buffer[i].pts > currentTimePts) {
-        break;
-      }
-    }
-
-    return buffer.slice(i);
-  };
-  /**
-   * Appends gop information (timing and byteLength) received by the transmuxer for the
-   * gops appended in the last call to appendBuffer
-   *
-   * @param {Array} buffer
-   *        The current buffer of gop information
-   * @param {Array} gops
-   *        List of new gop information
-   * @param {boolean} replace
-   *        If true, replace the buffer with the new gop information. If false, append the
-   *        new gop information to the buffer in the right location of time.
-   * @return {Array}
-   *         Updated list of gop information
-   */
-
-
-  var updateGopBuffer = function updateGopBuffer(buffer, gops, replace) {
-    if (!gops.length) {
-      return buffer;
-    }
-
-    if (replace) {
-      // If we are in safe append mode, then completely overwrite the gop buffer
-      // with the most recent appeneded data. This will make sure that when appending
-      // future segments, we only try to align with gops that are both ahead of current
-      // time and in the last segment appended.
-      return gops.slice();
-    }
-
-    var start = gops[0].pts;
-    var i = 0;
-
-    for (i; i < buffer.length; i++) {
-      if (buffer[i].pts >= start) {
-        break;
-      }
-    }
-
-    return buffer.slice(0, i).concat(gops);
-  };
-  /**
-   * Removes gop information in buffer that overlaps with provided start and end
-   *
-   * @param {Array} buffer
-   *        The current buffer of gop information
-   * @param {Double} start
-   *        position to start the remove at
-   * @param {Double} end
-   *        position to end the remove at
-   * @param {Double} mapping
-   *        Offset to map display time to stream presentation time
-   */
-
-
-  var removeGopBuffer = function removeGopBuffer(buffer, start, end, mapping) {
-    var startPts = Math.ceil((start - mapping) * clock_1);
-    var endPts = Math.ceil((end - mapping) * clock_1);
-    var updatedBuffer = buffer.slice();
-    var i = buffer.length;
-
-    while (i--) {
-      if (buffer[i].pts <= endPts) {
-        break;
-      }
-    }
-
-    if (i === -1) {
-      // no removal because end of remove range is before start of buffer
-      return updatedBuffer;
-    }
-
-    var j = i + 1;
-
-    while (j--) {
-      if (buffer[j].pts <= startPts) {
-        break;
-      }
-    } // clamp remove range start to 0 index
-
-
-    j = Math.max(j, 0);
-    updatedBuffer.splice(j, i - j + 1);
-    return updatedBuffer;
-  };
-
-  var shallowEqual = function shallowEqual(a, b) {
-    // if both are undefined
-    // or one or the other is undefined
-    // they are not equal
-    if (!a && !b || !a && b || a && !b) {
-      return false;
-    } // they are the same object and thus, equal
-
-
-    if (a === b) {
-      return true;
-    } // sort keys so we can make sure they have
-    // all the same keys later.
-
-
-    var akeys = Object.keys(a).sort();
-    var bkeys = Object.keys(b).sort(); // different number of keys, not equal
-
-    if (akeys.length !== bkeys.length) {
-      return false;
-    }
-
-    for (var i = 0; i < akeys.length; i++) {
-      var key = akeys[i]; // different sorted keys, not equal
-
-      if (key !== bkeys[i]) {
         return false;
-      } // different values, not equal
-
-
-      if (a[key] !== b[key]) {
-        return false;
-      }
-    }
-
-    return true;
-  }; // https://www.w3.org/TR/WebIDL-1/#quotaexceedederror
-
-
-  var QUOTA_EXCEEDED_ERR = 22;
-  /**
-   * The segment loader has no recourse except to fetch a segment in the
-   * current playlist and use the internal timestamps in that segment to
-   * generate a syncPoint. This function returns a good candidate index
-   * for that process.
-   *
-   * @param {Array} segments - the segments array from a playlist.
-   * @return {number} An index of a segment from the playlist to load
-   */
-
-  var getSyncSegmentCandidate = function getSyncSegmentCandidate(currentTimeline, segments, targetTime) {
-    segments = segments || [];
-    var timelineSegments = [];
-    var time = 0;
-
-    for (var i = 0; i < segments.length; i++) {
-      var segment = segments[i];
-
-      if (currentTimeline === segment.timeline) {
-        timelineSegments.push(i);
-        time += segment.duration;
-
-        if (time > targetTime) {
-          return i;
-        }
-      }
-    }
-
-    if (timelineSegments.length === 0) {
-      return 0;
-    } // default to the last timeline segment
-
-
-    return timelineSegments[timelineSegments.length - 1];
-  }; // In the event of a quota exceeded error, keep at least one second of back buffer. This
-  // number was arbitrarily chosen and may be updated in the future, but seemed reasonable
-  // as a start to prevent any potential issues with removing content too close to the
-  // playhead.
-
-
-  var MIN_BACK_BUFFER = 1; // in ms
-
-  var CHECK_BUFFER_DELAY = 500;
-
-  var finite = function finite(num) {
-    return typeof num === 'number' && isFinite(num);
-  }; // With most content hovering around 30fps, if a segment has a duration less than a half
-  // frame at 30fps or one frame at 60fps, the bandwidth and throughput calculations will
-  // not accurately reflect the rest of the content.
-
-
-  var MIN_SEGMENT_DURATION_TO_SAVE_STATS = 1 / 60;
-
-  var illegalMediaSwitch = function illegalMediaSwitch(loaderType, startingMedia, trackInfo) {
-    // Although these checks should most likely cover non 'main' types, for now it narrows
-    // the scope of our checks.
-    if (loaderType !== 'main' || !startingMedia || !trackInfo) {
-      return null;
-    }
-
-    if (!trackInfo.hasAudio && !trackInfo.hasVideo) {
-      return 'Neither audio nor video found in segment.';
-    }
-
-    if (startingMedia.hasVideo && !trackInfo.hasVideo) {
-      return 'Only audio found in segment when we expected video.' + ' We can\'t switch to audio only from a stream that had video.' + ' To get rid of this message, please add codec information to the manifest.';
-    }
-
-    if (!startingMedia.hasVideo && trackInfo.hasVideo) {
-      return 'Video found in segment when we expected only audio.' + ' We can\'t switch to a stream with video from an audio only stream.' + ' To get rid of this message, please add codec information to the manifest.';
-    }
-
-    return null;
-  };
-  /**
-   * Calculates a time value that is safe to remove from the back buffer without interrupting
-   * playback.
-   *
-   * @param {TimeRange} seekable
-   *        The current seekable range
-   * @param {number} currentTime
-   *        The current time of the player
-   * @param {number} targetDuration
-   *        The target duration of the current playlist
-   * @return {number}
-   *         Time that is safe to remove from the back buffer without interrupting playback
-   */
-
-
-  var safeBackBufferTrimTime = function safeBackBufferTrimTime(seekable, currentTime, targetDuration) {
-    // 30 seconds before the playhead provides a safe default for trimming.
-    //
-    // Choosing a reasonable default is particularly important for high bitrate content and
-    // VOD videos/live streams with large windows, as the buffer may end up overfilled and
-    // throw an APPEND_BUFFER_ERR.
-    var trimTime = currentTime - Config.BACK_BUFFER_LENGTH;
-
-    if (seekable.length) {
-      // Some live playlists may have a shorter window of content than the full allowed back
-      // buffer. For these playlists, don't save content that's no longer within the window.
-      trimTime = Math.max(trimTime, seekable.start(0));
-    } // Don't remove within target duration of the current time to avoid the possibility of
-    // removing the GOP currently being played, as removing it can cause playback stalls.
-
-
-    var maxTrimTime = currentTime - targetDuration;
-    return Math.min(maxTrimTime, trimTime);
-  };
-
-  var segmentInfoString = function segmentInfoString(segmentInfo) {
-    var startOfSegment = segmentInfo.startOfSegment,
-        duration = segmentInfo.duration,
-        segment = segmentInfo.segment,
-        part = segmentInfo.part,
-        _segmentInfo$playlist = segmentInfo.playlist,
-        seq = _segmentInfo$playlist.mediaSequence,
-        id = _segmentInfo$playlist.id,
-        _segmentInfo$playlist2 = _segmentInfo$playlist.segments,
-        segments = _segmentInfo$playlist2 === void 0 ? [] : _segmentInfo$playlist2,
-        index = segmentInfo.mediaIndex,
-        partIndex = segmentInfo.partIndex,
-        timeline = segmentInfo.timeline;
-    var segmentLen = segments.length - 1;
-    var selection = 'mediaIndex/partIndex increment';
-
-    if (segmentInfo.getMediaInfoForTime) {
-      selection = "getMediaInfoForTime (" + segmentInfo.getMediaInfoForTime + ")";
-    } else if (segmentInfo.isSyncRequest) {
-      selection = 'getSyncSegmentCandidate (isSyncRequest)';
-    }
-
-    if (segmentInfo.independent) {
-      selection += " with independent " + segmentInfo.independent;
-    }
-
-    var hasPartIndex = typeof partIndex === 'number';
-    var name = segmentInfo.segment.uri ? 'segment' : 'pre-segment';
-    var zeroBasedPartCount = hasPartIndex ? getKnownPartCount({
-      preloadSegment: segment
-    }) - 1 : 0;
-    return name + " [" + (seq + index) + "/" + (seq + segmentLen) + "]" + (hasPartIndex ? " part [" + partIndex + "/" + zeroBasedPartCount + "]" : '') + (" segment start/end [" + segment.start + " => " + segment.end + "]") + (hasPartIndex ? " part start/end [" + part.start + " => " + part.end + "]" : '') + (" startOfSegment [" + startOfSegment + "]") + (" duration [" + duration + "]") + (" timeline [" + timeline + "]") + (" selected by [" + selection + "]") + (" playlist [" + id + "]");
-  };
-
-  var timingInfoPropertyForMedia = function timingInfoPropertyForMedia(mediaType) {
-    return mediaType + "TimingInfo";
-  };
-  /**
-   * Returns the timestamp offset to use for the segment.
-   *
-   * @param {number} segmentTimeline
-   *        The timeline of the segment
-   * @param {number} currentTimeline
-   *        The timeline currently being followed by the loader
-   * @param {number} startOfSegment
-   *        The estimated segment start
-   * @param {TimeRange[]} buffered
-   *        The loader's buffer
-   * @param {boolean} overrideCheck
-   *        If true, no checks are made to see if the timestamp offset value should be set,
-   *        but sets it directly to a value.
-   *
-   * @return {number|null}
-   *         Either a number representing a new timestamp offset, or null if the segment is
-   *         part of the same timeline
-   */
-
-
-  var timestampOffsetForSegment = function timestampOffsetForSegment(_ref) {
-    var segmentTimeline = _ref.segmentTimeline,
-        currentTimeline = _ref.currentTimeline,
-        startOfSegment = _ref.startOfSegment,
-        buffered = _ref.buffered,
-        overrideCheck = _ref.overrideCheck; // Check to see if we are crossing a discontinuity to see if we need to set the
-    // timestamp offset on the transmuxer and source buffer.
-    //
-    // Previously, we changed the timestampOffset if the start of this segment was less than
-    // the currently set timestampOffset, but this isn't desirable as it can produce bad
-    // behavior, especially around long running live streams.
-
-    if (!overrideCheck && segmentTimeline === currentTimeline) {
-      return null;
-    } // When changing renditions, it's possible to request a segment on an older timeline. For
-    // instance, given two renditions with the following:
-    //
-    // #EXTINF:10
-    // segment1
-    // #EXT-X-DISCONTINUITY
-    // #EXTINF:10
-    // segment2
-    // #EXTINF:10
-    // segment3
-    //
-    // And the current player state:
-    //
-    // current time: 8
-    // buffer: 0 => 20
-    //
-    // The next segment on the current rendition would be segment3, filling the buffer from
-    // 20s onwards. However, if a rendition switch happens after segment2 was requested,
-    // then the next segment to be requested will be segment1 from the new rendition in
-    // order to fill time 8 and onwards. Using the buffered end would result in repeated
-    // content (since it would position segment1 of the new rendition starting at 20s). This
-    // case can be identified when the new segment's timeline is a prior value. Instead of
-    // using the buffered end, the startOfSegment can be used, which, hopefully, will be
-    // more accurate to the actual start time of the segment.
-
-
-    if (segmentTimeline < currentTimeline) {
-      return startOfSegment;
-    } // segmentInfo.startOfSegment used to be used as the timestamp offset, however, that
-    // value uses the end of the last segment if it is available. While this value
-    // should often be correct, it's better to rely on the buffered end, as the new
-    // content post discontinuity should line up with the buffered end as if it were
-    // time 0 for the new content.
-
-
-    return buffered.length ? buffered.end(buffered.length - 1) : startOfSegment;
-  };
-  /**
-   * Returns whether or not the loader should wait for a timeline change from the timeline
-   * change controller before processing the segment.
-   *
-   * Primary timing in VHS goes by video. This is different from most media players, as
-   * audio is more often used as the primary timing source. For the foreseeable future, VHS
-   * will continue to use video as the primary timing source, due to the current logic and
-   * expectations built around it.
-
-   * Since the timing follows video, in order to maintain sync, the video loader is
-   * responsible for setting both audio and video source buffer timestamp offsets.
-   *
-   * Setting different values for audio and video source buffers could lead to
-   * desyncing. The following examples demonstrate some of the situations where this
-   * distinction is important. Note that all of these cases involve demuxed content. When
-   * content is muxed, the audio and video are packaged together, therefore syncing
-   * separate media playlists is not an issue.
-   *
-   * CASE 1: Audio prepares to load a new timeline before video:
-   *
-   * Timeline:       0                 1
-   * Audio Segments: 0 1 2 3 4 5 DISCO 6 7 8 9
-   * Audio Loader:                     ^
-   * Video Segments: 0 1 2 3 4 5 DISCO 6 7 8 9
-   * Video Loader              ^
-   *
-   * In the above example, the audio loader is preparing to load the 6th segment, the first
-   * after a discontinuity, while the video loader is still loading the 5th segment, before
-   * the discontinuity.
-   *
-   * If the audio loader goes ahead and loads and appends the 6th segment before the video
-   * loader crosses the discontinuity, then when appended, the 6th audio segment will use
-   * the timestamp offset from timeline 0. This will likely lead to desyncing. In addition,
-   * the audio loader must provide the audioAppendStart value to trim the content in the
-   * transmuxer, and that value relies on the audio timestamp offset. Since the audio
-   * timestamp offset is set by the video (main) loader, the audio loader shouldn't load the
-   * segment until that value is provided.
-   *
-   * CASE 2: Video prepares to load a new timeline before audio:
-   *
-   * Timeline:       0                 1
-   * Audio Segments: 0 1 2 3 4 5 DISCO 6 7 8 9
-   * Audio Loader:             ^
-   * Video Segments: 0 1 2 3 4 5 DISCO 6 7 8 9
-   * Video Loader                      ^
-   *
-   * In the above example, the video loader is preparing to load the 6th segment, the first
-   * after a discontinuity, while the audio loader is still loading the 5th segment, before
-   * the discontinuity.
-   *
-   * If the video loader goes ahead and loads and appends the 6th segment, then once the
-   * segment is loaded and processed, both the video and audio timestamp offsets will be
-   * set, since video is used as the primary timing source. This is to ensure content lines
-   * up appropriately, as any modifications to the video timing are reflected by audio when
-   * the video loader sets the audio and video timestamp offsets to the same value. However,
-   * setting the timestamp offset for audio before audio has had a chance to change
-   * timelines will likely lead to desyncing, as the audio loader will append segment 5 with
-   * a timestamp intended to apply to segments from timeline 1 rather than timeline 0.
-   *
-   * CASE 3: When seeking, audio prepares to load a new timeline before video
-   *
-   * Timeline:       0                 1
-   * Audio Segments: 0 1 2 3 4 5 DISCO 6 7 8 9
-   * Audio Loader:           ^
-   * Video Segments: 0 1 2 3 4 5 DISCO 6 7 8 9
-   * Video Loader            ^
-   *
-   * In the above example, both audio and video loaders are loading segments from timeline
-   * 0, but imagine that the seek originated from timeline 1.
-   *
-   * When seeking to a new timeline, the timestamp offset will be set based on the expected
-   * segment start of the loaded video segment. In order to maintain sync, the audio loader
-   * must wait for the video loader to load its segment and update both the audio and video
-   * timestamp offsets before it may load and append its own segment. This is the case
-   * whether the seek results in a mismatched segment request (e.g., the audio loader
-   * chooses to load segment 3 and the video loader chooses to load segment 4) or the
-   * loaders choose to load the same segment index from each playlist, as the segments may
-   * not be aligned perfectly, even for matching segment indexes.
-   *
-   * @param {Object} timelinechangeController
-   * @param {number} currentTimeline
-   *        The timeline currently being followed by the loader
-   * @param {number} segmentTimeline
-   *        The timeline of the segment being loaded
-   * @param {('main'|'audio')} loaderType
-   *        The loader type
-   * @param {boolean} audioDisabled
-   *        Whether the audio is disabled for the loader. This should only be true when the
-   *        loader may have muxed audio in its segment, but should not append it, e.g., for
-   *        the main loader when an alternate audio playlist is active.
-   *
-   * @return {boolean}
-   *         Whether the loader should wait for a timeline change from the timeline change
-   *         controller before processing the segment
-   */
-
-
-  var shouldWaitForTimelineChange = function shouldWaitForTimelineChange(_ref2) {
-    var timelineChangeController = _ref2.timelineChangeController,
-        currentTimeline = _ref2.currentTimeline,
-        segmentTimeline = _ref2.segmentTimeline,
-        loaderType = _ref2.loaderType,
-        audioDisabled = _ref2.audioDisabled;
-
-    if (currentTimeline === segmentTimeline) {
-      return false;
-    }
-
-    if (loaderType === 'audio') {
-      var lastMainTimelineChange = timelineChangeController.lastTimelineChange({
-        type: 'main'
-      }); // Audio loader should wait if:
-      //
-      // * main hasn't had a timeline change yet (thus has not loaded its first segment)
-      // * main hasn't yet changed to the timeline audio is looking to load
-
-      return !lastMainTimelineChange || lastMainTimelineChange.to !== segmentTimeline;
-    } // The main loader only needs to wait for timeline changes if there's demuxed audio.
-    // Otherwise, there's nothing to wait for, since audio would be muxed into the main
-    // loader's segments (or the content is audio/video only and handled by the main
-    // loader).
-
-
-    if (loaderType === 'main' && audioDisabled) {
-      var pendingAudioTimelineChange = timelineChangeController.pendingTimelineChange({
-        type: 'audio'
-      }); // Main loader should wait for the audio loader if audio is not pending a timeline
-      // change to the current timeline.
-      //
-      // Since the main loader is responsible for setting the timestamp offset for both
-      // audio and video, the main loader must wait for audio to be about to change to its
-      // timeline before setting the offset, otherwise, if audio is behind in loading,
-      // segments from the previous timeline would be adjusted by the new timestamp offset.
-      //
-      // This requirement means that video will not cross a timeline until the audio is
-      // about to cross to it, so that way audio and video will always cross the timeline
-      // together.
-      //
-      // In addition to normal timeline changes, these rules also apply to the start of a
-      // stream (going from a non-existent timeline, -1, to timeline 0). It's important
-      // that these rules apply to the first timeline change because if they did not, it's
-      // possible that the main loader will cross two timelines before the audio loader has
-      // crossed one. Logic may be implemented to handle the startup as a special case, but
-      // it's easier to simply treat all timeline changes the same.
-
-      if (pendingAudioTimelineChange && pendingAudioTimelineChange.to === segmentTimeline) {
-        return false;
-      }
-
-      return true;
-    }
-
-    return false;
-  };
-
-  var mediaDuration = function mediaDuration(timingInfos) {
-    var maxDuration = 0;
-    ['video', 'audio'].forEach(function (type) {
-      var typeTimingInfo = timingInfos[type + "TimingInfo"];
-
-      if (!typeTimingInfo) {
-        return;
-      }
-
-      var start = typeTimingInfo.start,
-          end = typeTimingInfo.end;
-      var duration;
-
-      if (typeof start === 'bigint' || typeof end === 'bigint') {
-        duration = window.BigInt(end) - window.BigInt(start);
-      } else if (typeof start === 'number' && typeof end === 'number') {
-        duration = end - start;
-      }
-
-      if (typeof duration !== 'undefined' && duration > maxDuration) {
-        maxDuration = duration;
-      }
-    }); // convert back to a number if it is lower than MAX_SAFE_INTEGER
-    // as we only need BigInt when we are above that.
-
-    if (typeof maxDuration === 'bigint' && maxDuration < Number.MAX_SAFE_INTEGER) {
-      maxDuration = Number(maxDuration);
-    }
-
-    return maxDuration;
-  };
-
-  var segmentTooLong = function segmentTooLong(_ref3) {
-    var segmentDuration = _ref3.segmentDuration,
-        maxDuration = _ref3.maxDuration; // 0 duration segments are most likely due to metadata only segments or a lack of
-    // information.
-
-    if (!segmentDuration) {
-      return false;
-    } // For HLS:
-    //
-    // https://tools.ietf.org/html/draft-pantos-http-live-streaming-23#section-4.3.3.1
-    // The EXTINF duration of each Media Segment in the Playlist
-    // file, when rounded to the nearest integer, MUST be less than or equal
-    // to the target duration; longer segments can trigger playback stalls
-    // or other errors.
-    //
-    // For DASH, the mpd-parser uses the largest reported segment duration as the target
-    // duration. Although that reported duration is occasionally approximate (i.e., not
-    // exact), a strict check may report that a segment is too long more often in DASH.
-
-
-    return Math.round(segmentDuration) > maxDuration + TIME_FUDGE_FACTOR;
-  };
-
-  var getTroublesomeSegmentDurationMessage = function getTroublesomeSegmentDurationMessage(segmentInfo, sourceType) {
-    // Right now we aren't following DASH's timing model exactly, so only perform
-    // this check for HLS content.
-    if (sourceType !== 'hls') {
-      return null;
-    }
-
-    var segmentDuration = mediaDuration({
-      audioTimingInfo: segmentInfo.audioTimingInfo,
-      videoTimingInfo: segmentInfo.videoTimingInfo
-    }); // Don't report if we lack information.
-    //
-    // If the segment has a duration of 0 it is either a lack of information or a
-    // metadata only segment and shouldn't be reported here.
-
-    if (!segmentDuration) {
-      return null;
-    }
-
-    var targetDuration = segmentInfo.playlist.targetDuration;
-    var isSegmentWayTooLong = segmentTooLong({
-      segmentDuration: segmentDuration,
-      maxDuration: targetDuration * 2
-    });
-    var isSegmentSlightlyTooLong = segmentTooLong({
-      segmentDuration: segmentDuration,
-      maxDuration: targetDuration
-    });
-    var segmentTooLongMessage = "Segment with index " + segmentInfo.mediaIndex + " " + ("from playlist " + segmentInfo.playlist.id + " ") + ("has a duration of " + segmentDuration + " ") + ("when the reported duration is " + segmentInfo.duration + " ") + ("and the target duration is " + targetDuration + ". ") + 'For HLS content, a duration in excess of the target duration may result in ' + 'playback issues. See the HLS specification section on EXT-X-TARGETDURATION for ' + 'more details: ' + 'https://tools.ietf.org/html/draft-pantos-http-live-streaming-23#section-4.3.3.1';
-
-    if (isSegmentWayTooLong || isSegmentSlightlyTooLong) {
-      return {
-        severity: isSegmentWayTooLong ? 'warn' : 'info',
-        message: segmentTooLongMessage
-      };
-    }
-
-    return null;
-  };
-  /**
-   * An object that manages segment loading and appending.
-   *
-   * @class SegmentLoader
-   * @param {Object} options required and optional options
-   * @extends videojs.EventTarget
-   */
-
-
-  var SegmentLoader = /*#__PURE__*/function (_videojs$EventTarget) {
-    inheritsLoose(SegmentLoader, _videojs$EventTarget);
-
-    function SegmentLoader(settings, options) {
-      var _this;
-
-      _this = _videojs$EventTarget.call(this) || this; // check pre-conditions
-
-      if (!settings) {
-        throw new TypeError('Initialization settings are required');
-      }
-
-      if (typeof settings.currentTime !== 'function') {
-        throw new TypeError('No currentTime getter specified');
-      }
-
-      if (!settings.mediaSource) {
-        throw new TypeError('No MediaSource specified');
-      } // public properties
-
-
-      _this.bandwidth = settings.bandwidth;
-      _this.throughput = {
-        rate: 0,
-        count: 0
-      };
-      _this.roundTrip = NaN;
-
-      _this.resetStats_();
-
-      _this.mediaIndex = null;
-      _this.partIndex = null; // private settings
-
-      _this.hasPlayed_ = settings.hasPlayed;
-      _this.currentTime_ = settings.currentTime;
-      _this.seekable_ = settings.seekable;
-      _this.seeking_ = settings.seeking;
-      _this.duration_ = settings.duration;
-      _this.mediaSource_ = settings.mediaSource;
-      _this.vhs_ = settings.vhs;
-      _this.loaderType_ = settings.loaderType;
-      _this.currentMediaInfo_ = void 0;
-      _this.startingMediaInfo_ = void 0;
-      _this.segmentMetadataTrack_ = settings.segmentMetadataTrack;
-      _this.goalBufferLength_ = settings.goalBufferLength;
-      _this.sourceType_ = settings.sourceType;
-      _this.sourceUpdater_ = settings.sourceUpdater;
-      _this.inbandTextTracks_ = settings.inbandTextTracks;
-      _this.state_ = 'INIT';
-      _this.timelineChangeController_ = settings.timelineChangeController;
-      _this.shouldSaveSegmentTimingInfo_ = true;
-      _this.parse708captions_ = settings.parse708captions;
-      _this.useDtsForTimestampOffset_ = settings.useDtsForTimestampOffset;
-      _this.captionServices_ = settings.captionServices;
-      _this.experimentalExactManifestTimings = settings.experimentalExactManifestTimings; // private instance variables
-
-      _this.checkBufferTimeout_ = null;
-      _this.error_ = void 0;
-      _this.currentTimeline_ = -1;
-      _this.pendingSegment_ = null;
-      _this.xhrOptions_ = null;
-      _this.pendingSegments_ = [];
-      _this.audioDisabled_ = false;
-      _this.isPendingTimestampOffset_ = false; // TODO possibly move gopBuffer and timeMapping info to a separate controller
-
-      _this.gopBuffer_ = [];
-      _this.timeMapping_ = 0;
-      _this.safeAppend_ = videojs.browser.IE_VERSION >= 11;
-      _this.appendInitSegment_ = {
-        audio: true,
-        video: true
-      };
-      _this.playlistOfLastInitSegment_ = {
-        audio: null,
-        video: null
-      };
-      _this.callQueue_ = []; // If the segment loader prepares to load a segment, but does not have enough
-      // information yet to start the loading process (e.g., if the audio loader wants to
-      // load a segment from the next timeline but the main loader hasn't yet crossed that
-      // timeline), then the load call will be added to the queue until it is ready to be
-      // processed.
-
-      _this.loadQueue_ = [];
-      _this.metadataQueue_ = {
-        id3: [],
-        caption: []
-      };
-      _this.waitingOnRemove_ = false;
-      _this.quotaExceededErrorRetryTimeout_ = null; // Fragmented mp4 playback
-
-      _this.activeInitSegmentId_ = null;
-      _this.initSegments_ = {}; // HLSe playback
-
-      _this.cacheEncryptionKeys_ = settings.cacheEncryptionKeys;
-      _this.keyCache_ = {};
-      _this.decrypter_ = settings.decrypter; // Manages the tracking and generation of sync-points, mappings
-      // between a time in the display time and a segment index within
-      // a playlist
-
-      _this.syncController_ = settings.syncController;
-      _this.syncPoint_ = {
-        segmentIndex: 0,
-        time: 0
-      };
-      _this.transmuxer_ = _this.createTransmuxer_();
-
-      _this.triggerSyncInfoUpdate_ = function () {
-        return _this.trigger('syncinfoupdate');
-      };
-
-      _this.syncController_.on('syncinfoupdate', _this.triggerSyncInfoUpdate_);
-
-      _this.mediaSource_.addEventListener('sourceopen', function () {
-        if (!_this.isEndOfStream_()) {
-          _this.ended_ = false;
-        }
-      }); // ...for determining the fetch location
-
-
-      _this.fetchAtBuffer_ = false;
-      _this.logger_ = logger("SegmentLoader[" + _this.loaderType_ + "]");
-      Object.defineProperty(assertThisInitialized(_this), 'state', {
-        get: function get() {
-          return this.state_;
-        },
-        set: function set(newState) {
-          if (newState !== this.state_) {
-            this.logger_(this.state_ + " -> " + newState);
-            this.state_ = newState;
-            this.trigger('statechange');
-          }
-        }
-      });
-
-      _this.sourceUpdater_.on('ready', function () {
-        if (_this.hasEnoughInfoToAppend_()) {
-          _this.processCallQueue_();
-        }
-      }); // Only the main loader needs to listen for pending timeline changes, as the main
-      // loader should wait for audio to be ready to change its timeline so that both main
-      // and audio timelines change together. For more details, see the
-      // shouldWaitForTimelineChange function.
-
-
-      if (_this.loaderType_ === 'main') {
-        _this.timelineChangeController_.on('pendingtimelinechange', function () {
-          if (_this.hasEnoughInfoToAppend_()) {
-            _this.processCallQueue_();
-          }
-        });
-      } // The main loader only listens on pending timeline changes, but the audio loader,
-      // since its loads follow main, needs to listen on timeline changes. For more details,
-      // see the shouldWaitForTimelineChange function.
-
-
-      if (_this.loaderType_ === 'audio') {
-        _this.timelineChangeController_.on('timelinechange', function () {
-          if (_this.hasEnoughInfoToLoad_()) {
-            _this.processLoadQueue_();
-          }
-
-          if (_this.hasEnoughInfoToAppend_()) {
-            _this.processCallQueue_();
-          }
-        });
-      }
-
-      return _this;
-    }
-
-    var _proto = SegmentLoader.prototype;
-
-    _proto.createTransmuxer_ = function createTransmuxer_() {
-      return segmentTransmuxer.createTransmuxer({
-        remux: false,
-        alignGopsAtEnd: this.safeAppend_,
-        keepOriginalTimestamps: true,
-        parse708captions: this.parse708captions_,
-        captionServices: this.captionServices_
-      });
-    }
-    /**
-     * reset all of our media stats
-     *
-     * @private
-     */
-    ;
-
-    _proto.resetStats_ = function resetStats_() {
-      this.mediaBytesTransferred = 0;
-      this.mediaRequests = 0;
-      this.mediaRequestsAborted = 0;
-      this.mediaRequestsTimedout = 0;
-      this.mediaRequestsErrored = 0;
-      this.mediaTransferDuration = 0;
-      this.mediaSecondsLoaded = 0;
-      this.mediaAppends = 0;
-    }
-    /**
-     * dispose of the SegmentLoader and reset to the default state
-     */
-    ;
-
-    _proto.dispose = function dispose() {
-      this.trigger('dispose');
-      this.state = 'DISPOSED';
-      this.pause();
-      this.abort_();
-
-      if (this.transmuxer_) {
-        this.transmuxer_.terminate();
-      }
-
-      this.resetStats_();
-
-      if (this.checkBufferTimeout_) {
-        window.clearTimeout(this.checkBufferTimeout_);
-      }
-
-      if (this.syncController_ && this.triggerSyncInfoUpdate_) {
-        this.syncController_.off('syncinfoupdate', this.triggerSyncInfoUpdate_);
-      }
-
-      this.off();
     };
-
-    _proto.setAudio = function setAudio(enable) {
-      this.audioDisabled_ = !enable;
-
-      if (enable) {
-        this.appendInitSegment_.audio = true;
-      } else {
-        // remove current track audio if it gets disabled
-        this.sourceUpdater_.removeAudio(0, this.duration_());
-      }
-    }
     /**
-     * abort anything that is currently doing on with the SegmentLoader
-     * and reset to a default state
-     */
-    ;
-
-    _proto.abort = function abort() {
-      if (this.state !== 'WAITING') {
-        if (this.pendingSegment_) {
-          this.pendingSegment_ = null;
-        }
-
-        return;
-      }
-
-      this.abort_(); // We aborted the requests we were waiting on, so reset the loader's state to READY
-      // since we are no longer "waiting" on any requests. XHR callback is not always run
-      // when the request is aborted. This will prevent the loader from being stuck in the
-      // WAITING state indefinitely.
-
-      this.state = 'READY'; // don't wait for buffer check timeouts to begin fetching the
-      // next segment
-
-      if (!this.paused()) {
-        this.monitorBuffer_();
-      }
-    }
-    /**
-     * abort all pending xhr requests and null any pending segements
+     * Checks if the playlist has a value for the specified attribute
      *
-     * @private
-     */
-    ;
-
-    _proto.abort_ = function abort_() {
-      if (this.pendingSegment_ && this.pendingSegment_.abortRequests) {
-        this.pendingSegment_.abortRequests();
-      } // clear out the segment being processed
-
-
-      this.pendingSegment_ = null;
-      this.callQueue_ = [];
-      this.loadQueue_ = [];
-      this.metadataQueue_.id3 = [];
-      this.metadataQueue_.caption = [];
-      this.timelineChangeController_.clearPendingTimelineChange(this.loaderType_);
-      this.waitingOnRemove_ = false;
-      window.clearTimeout(this.quotaExceededErrorRetryTimeout_);
-      this.quotaExceededErrorRetryTimeout_ = null;
-    };
-
-    _proto.checkForAbort_ = function checkForAbort_(requestId) {
-      // If the state is APPENDING, then aborts will not modify the state, meaning the first
-      // callback that happens should reset the state to READY so that loading can continue.
-      if (this.state === 'APPENDING' && !this.pendingSegment_) {
-        this.state = 'READY';
-        return true;
-      }
-
-      if (!this.pendingSegment_ || this.pendingSegment_.requestId !== requestId) {
-        return true;
-      }
-
-      return false;
-    }
-    /**
-     * set an error on the segment loader and null out any pending segements
-     *
-     * @param {Error} error the error to set on the SegmentLoader
-     * @return {Error} the error that was set or that is currently set
-     */
-    ;
-
-    _proto.error = function error(_error) {
-      if (typeof _error !== 'undefined') {
-        this.logger_('error occurred:', _error);
-        this.error_ = _error;
-      }
-
-      this.pendingSegment_ = null;
-      return this.error_;
-    };
-
-    _proto.endOfStream = function endOfStream() {
-      this.ended_ = true;
-
-      if (this.transmuxer_) {
-        // need to clear out any cached data to prepare for the new segment
-        segmentTransmuxer.reset(this.transmuxer_);
-      }
-
-      this.gopBuffer_.length = 0;
-      this.pause();
-      this.trigger('ended');
-    }
-    /**
-     * Indicates which time ranges are buffered
-     *
-     * @return {TimeRange}
-     *         TimeRange object representing the current buffered ranges
-     */
-    ;
-
-    _proto.buffered_ = function buffered_() {
-      var trackInfo = this.getMediaInfo_();
-
-      if (!this.sourceUpdater_ || !trackInfo) {
-        return videojs.createTimeRanges();
-      }
-
-      if (this.loaderType_ === 'main') {
-        var hasAudio = trackInfo.hasAudio,
-            hasVideo = trackInfo.hasVideo,
-            isMuxed = trackInfo.isMuxed;
-
-        if (hasVideo && hasAudio && !this.audioDisabled_ && !isMuxed) {
-          return this.sourceUpdater_.buffered();
-        }
-
-        if (hasVideo) {
-          return this.sourceUpdater_.videoBuffered();
-        }
-      } // One case that can be ignored for now is audio only with alt audio,
-      // as we don't yet have proper support for that.
-
-
-      return this.sourceUpdater_.audioBuffered();
-    }
-    /**
-     * Gets and sets init segment for the provided map
-     *
-     * @param {Object} map
-     *        The map object representing the init segment to get or set
-     * @param {boolean=} set
-     *        If true, the init segment for the provided map should be saved
-     * @return {Object}
-     *         map object for desired init segment
-     */
-    ;
-
-    _proto.initSegmentForMap = function initSegmentForMap(map, set) {
-      if (set === void 0) {
-        set = false;
-      }
-
-      if (!map) {
-        return null;
-      }
-
-      var id = initSegmentId(map);
-      var storedMap = this.initSegments_[id];
-
-      if (set && !storedMap && map.bytes) {
-        this.initSegments_[id] = storedMap = {
-          resolvedUri: map.resolvedUri,
-          byterange: map.byterange,
-          bytes: map.bytes,
-          tracks: map.tracks,
-          timescales: map.timescales
-        };
-      }
-
-      return storedMap || map;
-    }
-    /**
-     * Gets and sets key for the provided key
-     *
-     * @param {Object} key
-     *        The key object representing the key to get or set
-     * @param {boolean=} set
-     *        If true, the key for the provided key should be saved
-     * @return {Object}
-     *         Key object for desired key
-     */
-    ;
-
-    _proto.segmentKey = function segmentKey(key, set) {
-      if (set === void 0) {
-        set = false;
-      }
-
-      if (!key) {
-        return null;
-      }
-
-      var id = segmentKeyId(key);
-      var storedKey = this.keyCache_[id]; // TODO: We should use the HTTP Expires header to invalidate our cache per
-      // https://tools.ietf.org/html/draft-pantos-http-live-streaming-23#section-6.2.3
-
-      if (this.cacheEncryptionKeys_ && set && !storedKey && key.bytes) {
-        this.keyCache_[id] = storedKey = {
-          resolvedUri: key.resolvedUri,
-          bytes: key.bytes
-        };
-      }
-
-      var result = {
-        resolvedUri: (storedKey || key).resolvedUri
-      };
-
-      if (storedKey) {
-        result.bytes = storedKey.bytes;
-      }
-
-      return result;
-    }
-    /**
-     * Returns true if all configuration required for loading is present, otherwise false.
-     *
-     * @return {boolean} True if the all configuration is ready for loading
-     * @private
-     */
-    ;
-
-    _proto.couldBeginLoading_ = function couldBeginLoading_() {
-      return this.playlist_ && !this.paused();
-    }
-    /**
-     * load a playlist and start to fill the buffer
-     */
-    ;
-
-    _proto.load = function load() {
-      // un-pause
-      this.monitorBuffer_(); // if we don't have a playlist yet, keep waiting for one to be
-      // specified
-
-      if (!this.playlist_) {
-        return;
-      } // if all the configuration is ready, initialize and begin loading
-
-
-      if (this.state === 'INIT' && this.couldBeginLoading_()) {
-        return this.init_();
-      } // if we're in the middle of processing a segment already, don't
-      // kick off an additional segment request
-
-
-      if (!this.couldBeginLoading_() || this.state !== 'READY' && this.state !== 'INIT') {
-        return;
-      }
-
-      this.state = 'READY';
-    }
-    /**
-     * Once all the starting parameters have been specified, begin
-     * operation. This method should only be invoked from the INIT
-     * state.
-     *
-     * @private
-     */
-    ;
-
-    _proto.init_ = function init_() {
-      this.state = 'READY'; // if this is the audio segment loader, and it hasn't been inited before, then any old
-      // audio data from the muxed content should be removed
-
-      this.resetEverything();
-      return this.monitorBuffer_();
-    }
-    /**
-     * set a playlist on the segment loader
-     *
-     * @param {PlaylistLoader} media the playlist to set on the segment loader
-     */
-    ;
-
-    _proto.playlist = function playlist(newPlaylist, options) {
-      if (options === void 0) {
-        options = {};
-      }
-
-      if (!newPlaylist) {
-        return;
-      }
-
-      var oldPlaylist = this.playlist_;
-      var segmentInfo = this.pendingSegment_;
-      this.playlist_ = newPlaylist;
-      this.xhrOptions_ = options; // when we haven't started playing yet, the start of a live playlist
-      // is always our zero-time so force a sync update each time the playlist
-      // is refreshed from the server
-      //
-      // Use the INIT state to determine if playback has started, as the playlist sync info
-      // should be fixed once requests begin (as sync points are generated based on sync
-      // info), but not before then.
-
-      if (this.state === 'INIT') {
-        newPlaylist.syncInfo = {
-          mediaSequence: newPlaylist.mediaSequence,
-          time: 0
-        }; // Setting the date time mapping means mapping the program date time (if available)
-        // to time 0 on the player's timeline. The playlist's syncInfo serves a similar
-        // purpose, mapping the initial mediaSequence to time zero. Since the syncInfo can
-        // be updated as the playlist is refreshed before the loader starts loading, the
-        // program date time mapping needs to be updated as well.
-        //
-        // This mapping is only done for the main loader because a program date time should
-        // map equivalently between playlists.
-
-        if (this.loaderType_ === 'main') {
-          this.syncController_.setDateTimeMappingForStart(newPlaylist);
-        }
-      }
-
-      var oldId = null;
-
-      if (oldPlaylist) {
-        if (oldPlaylist.id) {
-          oldId = oldPlaylist.id;
-        } else if (oldPlaylist.uri) {
-          oldId = oldPlaylist.uri;
-        }
-      }
-
-      this.logger_("playlist update [" + oldId + " => " + (newPlaylist.id || newPlaylist.uri) + "]"); // in VOD, this is always a rendition switch (or we updated our syncInfo above)
-      // in LIVE, we always want to update with new playlists (including refreshes)
-
-      this.trigger('syncinfoupdate'); // if we were unpaused but waiting for a playlist, start
-      // buffering now
-
-      if (this.state === 'INIT' && this.couldBeginLoading_()) {
-        return this.init_();
-      }
-
-      if (!oldPlaylist || oldPlaylist.uri !== newPlaylist.uri) {
-        if (this.mediaIndex !== null) {
-          // we must reset/resync the segment loader when we switch renditions and
-          // the segment loader is already synced to the previous rendition
-          // on playlist changes we want it to be possible to fetch
-          // at the buffer for vod but not for live. So we use resetLoader
-          // for live and resyncLoader for vod. We want this because
-          // if a playlist uses independent and non-independent segments/parts the
-          // buffer may not accurately reflect the next segment that we should try
-          // downloading.
-          if (!newPlaylist.endList) {
-            this.resetLoader();
-          } else {
-            this.resyncLoader();
-          }
-        }
-
-        this.currentMediaInfo_ = void 0;
-        this.trigger('playlistupdate'); // the rest of this function depends on `oldPlaylist` being defined
-
-        return;
-      } // we reloaded the same playlist so we are in a live scenario
-      // and we will likely need to adjust the mediaIndex
-
-
-      var mediaSequenceDiff = newPlaylist.mediaSequence - oldPlaylist.mediaSequence;
-      this.logger_("live window shift [" + mediaSequenceDiff + "]"); // update the mediaIndex on the SegmentLoader
-      // this is important because we can abort a request and this value must be
-      // equal to the last appended mediaIndex
-
-      if (this.mediaIndex !== null) {
-        this.mediaIndex -= mediaSequenceDiff; // this can happen if we are going to load the first segment, but get a playlist
-        // update during that. mediaIndex would go from 0 to -1 if mediaSequence in the
-        // new playlist was incremented by 1.
-
-        if (this.mediaIndex < 0) {
-          this.mediaIndex = null;
-          this.partIndex = null;
-        } else {
-          var segment = this.playlist_.segments[this.mediaIndex]; // partIndex should remain the same for the same segment
-          // unless parts fell off of the playlist for this segment.
-          // In that case we need to reset partIndex and resync
-
-          if (this.partIndex && (!segment.parts || !segment.parts.length || !segment.parts[this.partIndex])) {
-            var mediaIndex = this.mediaIndex;
-            this.logger_("currently processing part (index " + this.partIndex + ") no longer exists.");
-            this.resetLoader(); // We want to throw away the partIndex and the data associated with it,
-            // as the part was dropped from our current playlists segment.
-            // The mediaIndex will still be valid so keep that around.
-
-            this.mediaIndex = mediaIndex;
-          }
-        }
-      } // update the mediaIndex on the SegmentInfo object
-      // this is important because we will update this.mediaIndex with this value
-      // in `handleAppendsDone_` after the segment has been successfully appended
-
-
-      if (segmentInfo) {
-        segmentInfo.mediaIndex -= mediaSequenceDiff;
-
-        if (segmentInfo.mediaIndex < 0) {
-          segmentInfo.mediaIndex = null;
-          segmentInfo.partIndex = null;
-        } else {
-          // we need to update the referenced segment so that timing information is
-          // saved for the new playlist's segment, however, if the segment fell off the
-          // playlist, we can leave the old reference and just lose the timing info
-          if (segmentInfo.mediaIndex >= 0) {
-            segmentInfo.segment = newPlaylist.segments[segmentInfo.mediaIndex];
-          }
-
-          if (segmentInfo.partIndex >= 0 && segmentInfo.segment.parts) {
-            segmentInfo.part = segmentInfo.segment.parts[segmentInfo.partIndex];
-          }
-        }
-      }
-
-      this.syncController_.saveExpiredSegmentInfo(oldPlaylist, newPlaylist);
-    }
-    /**
-     * Prevent the loader from fetching additional segments. If there
-     * is a segment request outstanding, it will finish processing
-     * before the loader halts. A segment loader can be unpaused by
-     * calling load().
-     */
-    ;
-
-    _proto.pause = function pause() {
-      if (this.checkBufferTimeout_) {
-        window.clearTimeout(this.checkBufferTimeout_);
-        this.checkBufferTimeout_ = null;
-      }
-    }
-    /**
-     * Returns whether the segment loader is fetching additional
-     * segments when given the opportunity. This property can be
-     * modified through calls to pause() and load().
-     */
-    ;
-
-    _proto.paused = function paused() {
-      return this.checkBufferTimeout_ === null;
-    }
-    /**
-     * Delete all the buffered data and reset the SegmentLoader
-     *
-     * @param {Function} [done] an optional callback to be executed when the remove
-     * operation is complete
-     */
-    ;
-
-    _proto.resetEverything = function resetEverything(done) {
-      this.ended_ = false;
-      this.appendInitSegment_ = {
-        audio: true,
-        video: true
-      };
-      this.resetLoader(); // remove from 0, the earliest point, to Infinity, to signify removal of everything.
-      // VTT Segment Loader doesn't need to do anything but in the regular SegmentLoader,
-      // we then clamp the value to duration if necessary.
-
-      this.remove(0, Infinity, done); // clears fmp4 captions
-
-      if (this.transmuxer_) {
-        this.transmuxer_.postMessage({
-          action: 'clearAllMp4Captions'
-        }); // reset the cache in the transmuxer
-
-        this.transmuxer_.postMessage({
-          action: 'reset'
-        });
-      }
-    }
-    /**
-     * Force the SegmentLoader to resync and start loading around the currentTime instead
-     * of starting at the end of the buffer
-     *
-     * Useful for fast quality changes
-     */
-    ;
-
-    _proto.resetLoader = function resetLoader() {
-      this.fetchAtBuffer_ = false;
-      this.resyncLoader();
-    }
-    /**
-     * Force the SegmentLoader to restart synchronization and make a conservative guess
-     * before returning to the simple walk-forward method
-     */
-    ;
-
-    _proto.resyncLoader = function resyncLoader() {
-      if (this.transmuxer_) {
-        // need to clear out any cached data to prepare for the new segment
-        segmentTransmuxer.reset(this.transmuxer_);
-      }
-
-      this.mediaIndex = null;
-      this.partIndex = null;
-      this.syncPoint_ = null;
-      this.isPendingTimestampOffset_ = false;
-      this.callQueue_ = [];
-      this.loadQueue_ = [];
-      this.metadataQueue_.id3 = [];
-      this.metadataQueue_.caption = [];
-      this.abort();
-
-      if (this.transmuxer_) {
-        this.transmuxer_.postMessage({
-          action: 'clearParsedMp4Captions'
-        });
-      }
-    }
-    /**
-     * Remove any data in the source buffer between start and end times
-     *
-     * @param {number} start - the start time of the region to remove from the buffer
-     * @param {number} end - the end time of the region to remove from the buffer
-     * @param {Function} [done] - an optional callback to be executed when the remove
-     * @param {boolean} force - force all remove operations to happen
-     * operation is complete
-     */
-    ;
-
-    _proto.remove = function remove(start, end, done, force) {
-      if (done === void 0) {
-        done = function done() {};
-      }
-
-      if (force === void 0) {
-        force = false;
-      } // clamp end to duration if we need to remove everything.
-      // This is due to a browser bug that causes issues if we remove to Infinity.
-      // videojs/videojs-contrib-hls#1225
-
-
-      if (end === Infinity) {
-        end = this.duration_();
-      } // skip removes that would throw an error
-      // commonly happens during a rendition switch at the start of a video
-      // from start 0 to end 0
-
-
-      if (end <= start) {
-        this.logger_('skipping remove because end ${end} is <= start ${start}');
-        return;
-      }
-
-      if (!this.sourceUpdater_ || !this.getMediaInfo_()) {
-        this.logger_('skipping remove because no source updater or starting media info'); // nothing to remove if we haven't processed any media
-
-        return;
-      } // set it to one to complete this function's removes
-
-
-      var removesRemaining = 1;
-
-      var removeFinished = function removeFinished() {
-        removesRemaining--;
-
-        if (removesRemaining === 0) {
-          done();
-        }
-      };
-
-      if (force || !this.audioDisabled_) {
-        removesRemaining++;
-        this.sourceUpdater_.removeAudio(start, end, removeFinished);
-      } // While it would be better to only remove video if the main loader has video, this
-      // should be safe with audio only as removeVideo will call back even if there's no
-      // video buffer.
-      //
-      // In theory we can check to see if there's video before calling the remove, but in
-      // the event that we're switching between renditions and from video to audio only
-      // (when we add support for that), we may need to clear the video contents despite
-      // what the new media will contain.
-
-
-      if (force || this.loaderType_ === 'main') {
-        this.gopBuffer_ = removeGopBuffer(this.gopBuffer_, start, end, this.timeMapping_);
-        removesRemaining++;
-        this.sourceUpdater_.removeVideo(start, end, removeFinished);
-      } // remove any captions and ID3 tags
-
-
-      for (var track in this.inbandTextTracks_) {
-        removeCuesFromTrack(start, end, this.inbandTextTracks_[track]);
-      }
-
-      removeCuesFromTrack(start, end, this.segmentMetadataTrack_); // finished this function's removes
-
-      removeFinished();
-    }
-    /**
-     * (re-)schedule monitorBufferTick_ to run as soon as possible
-     *
-     * @private
-     */
-    ;
-
-    _proto.monitorBuffer_ = function monitorBuffer_() {
-      if (this.checkBufferTimeout_) {
-        window.clearTimeout(this.checkBufferTimeout_);
-      }
-
-      this.checkBufferTimeout_ = window.setTimeout(this.monitorBufferTick_.bind(this), 1);
-    }
-    /**
-     * As long as the SegmentLoader is in the READY state, periodically
-     * invoke fillBuffer_().
-     *
-     * @private
-     */
-    ;
-
-    _proto.monitorBufferTick_ = function monitorBufferTick_() {
-      if (this.state === 'READY') {
-        this.fillBuffer_();
-      }
-
-      if (this.checkBufferTimeout_) {
-        window.clearTimeout(this.checkBufferTimeout_);
-      }
-
-      this.checkBufferTimeout_ = window.setTimeout(this.monitorBufferTick_.bind(this), CHECK_BUFFER_DELAY);
-    }
-    /**
-     * fill the buffer with segements unless the sourceBuffers are
-     * currently updating
-     *
-     * Note: this function should only ever be called by monitorBuffer_
-     * and never directly
-     *
-     * @private
-     */
-    ;
-
-    _proto.fillBuffer_ = function fillBuffer_() {
-      // TODO since the source buffer maintains a queue, and we shouldn't call this function
-      // except when we're ready for the next segment, this check can most likely be removed
-      if (this.sourceUpdater_.updating()) {
-        return;
-      } // see if we need to begin loading immediately
-
-
-      var segmentInfo = this.chooseNextRequest_();
-
-      if (!segmentInfo) {
-        return;
-      }
-
-      if (typeof segmentInfo.timestampOffset === 'number') {
-        this.isPendingTimestampOffset_ = false;
-        this.timelineChangeController_.pendingTimelineChange({
-          type: this.loaderType_,
-          from: this.currentTimeline_,
-          to: segmentInfo.timeline
-        });
-      }
-
-      this.loadSegment_(segmentInfo);
-    }
-    /**
-     * Determines if we should call endOfStream on the media source based
-     * on the state of the buffer or if appened segment was the final
-     * segment in the playlist.
-     *
-     * @param {number} [mediaIndex] the media index of segment we last appended
-     * @param {Object} [playlist] a media playlist object
-     * @return {boolean} do we need to call endOfStream on the MediaSource
-     */
-    ;
-
-    _proto.isEndOfStream_ = function isEndOfStream_(mediaIndex, playlist, partIndex) {
-      if (mediaIndex === void 0) {
-        mediaIndex = this.mediaIndex;
-      }
-
-      if (playlist === void 0) {
-        playlist = this.playlist_;
-      }
-
-      if (partIndex === void 0) {
-        partIndex = this.partIndex;
-      }
-
-      if (!playlist || !this.mediaSource_) {
-        return false;
-      }
-
-      var segment = typeof mediaIndex === 'number' && playlist.segments[mediaIndex]; // mediaIndex is zero based but length is 1 based
-
-      var appendedLastSegment = mediaIndex + 1 === playlist.segments.length; // true if there are no parts, or this is the last part.
-
-      var appendedLastPart = !segment || !segment.parts || partIndex + 1 === segment.parts.length; // if we've buffered to the end of the video, we need to call endOfStream
-      // so that MediaSources can trigger the `ended` event when it runs out of
-      // buffered data instead of waiting for me
-
-      return playlist.endList && this.mediaSource_.readyState === 'open' && appendedLastSegment && appendedLastPart;
-    }
-    /**
-     * Determines what request should be made given current segment loader state.
-     *
-     * @return {Object} a request object that describes the segment/part to load
-     */
-    ;
-
-    _proto.chooseNextRequest_ = function chooseNextRequest_() {
-      var buffered = this.buffered_();
-      var bufferedEnd = lastBufferedEnd(buffered) || 0;
-      var bufferedTime = timeAheadOf(buffered, this.currentTime_());
-      var preloaded = !this.hasPlayed_() && bufferedTime >= 1;
-      var haveEnoughBuffer = bufferedTime >= this.goalBufferLength_();
-      var segments = this.playlist_.segments; // return no segment if:
-      // 1. we don't have segments
-      // 2. The video has not yet played and we already downloaded a segment
-      // 3. we already have enough buffered time
-
-      if (!segments.length || preloaded || haveEnoughBuffer) {
-        return null;
-      }
-
-      this.syncPoint_ = this.syncPoint_ || this.syncController_.getSyncPoint(this.playlist_, this.duration_(), this.currentTimeline_, this.currentTime_());
-      var next = {
-        partIndex: null,
-        mediaIndex: null,
-        startOfSegment: null,
-        playlist: this.playlist_,
-        isSyncRequest: Boolean(!this.syncPoint_)
-      };
-
-      if (next.isSyncRequest) {
-        next.mediaIndex = getSyncSegmentCandidate(this.currentTimeline_, segments, bufferedEnd);
-      } else if (this.mediaIndex !== null) {
-        var segment = segments[this.mediaIndex];
-        var partIndex = typeof this.partIndex === 'number' ? this.partIndex : -1;
-        next.startOfSegment = segment.end ? segment.end : bufferedEnd;
-
-        if (segment.parts && segment.parts[partIndex + 1]) {
-          next.mediaIndex = this.mediaIndex;
-          next.partIndex = partIndex + 1;
-        } else {
-          next.mediaIndex = this.mediaIndex + 1;
-        }
-      } else {
-        // Find the segment containing the end of the buffer or current time.
-        var _Playlist$getMediaInf = Playlist.getMediaInfoForTime({
-          experimentalExactManifestTimings: this.experimentalExactManifestTimings,
-          playlist: this.playlist_,
-          currentTime: this.fetchAtBuffer_ ? bufferedEnd : this.currentTime_(),
-          startingPartIndex: this.syncPoint_.partIndex,
-          startingSegmentIndex: this.syncPoint_.segmentIndex,
-          startTime: this.syncPoint_.time
-        }),
-            segmentIndex = _Playlist$getMediaInf.segmentIndex,
-            startTime = _Playlist$getMediaInf.startTime,
-            _partIndex = _Playlist$getMediaInf.partIndex;
-
-        next.getMediaInfoForTime = this.fetchAtBuffer_ ? "bufferedEnd " + bufferedEnd : "currentTime " + this.currentTime_();
-        next.mediaIndex = segmentIndex;
-        next.startOfSegment = startTime;
-        next.partIndex = _partIndex;
-      }
-
-      var nextSegment = segments[next.mediaIndex];
-      var nextPart = nextSegment && typeof next.partIndex === 'number' && nextSegment.parts && nextSegment.parts[next.partIndex]; // if the next segment index is invalid or
-      // the next partIndex is invalid do not choose a next segment.
-
-      if (!nextSegment || typeof next.partIndex === 'number' && !nextPart) {
-        return null;
-      } // if the next segment has parts, and we don't have a partIndex.
-      // Set partIndex to 0
-
-
-      if (typeof next.partIndex !== 'number' && nextSegment.parts) {
-        next.partIndex = 0;
-        nextPart = nextSegment.parts[0];
-      } // if we have no buffered data then we need to make sure
-      // that the next part we append is "independent" if possible.
-      // So we check if the previous part is independent, and request
-      // it if it is.
-
-
-      if (!bufferedTime && nextPart && !nextPart.independent) {
-        if (next.partIndex === 0) {
-          var lastSegment = segments[next.mediaIndex - 1];
-          var lastSegmentLastPart = lastSegment.parts && lastSegment.parts.length && lastSegment.parts[lastSegment.parts.length - 1];
-
-          if (lastSegmentLastPart && lastSegmentLastPart.independent) {
-            next.mediaIndex -= 1;
-            next.partIndex = lastSegment.parts.length - 1;
-            next.independent = 'previous segment';
-          }
-        } else if (nextSegment.parts[next.partIndex - 1].independent) {
-          next.partIndex -= 1;
-          next.independent = 'previous part';
-        }
-      }
-
-      var ended = this.mediaSource_ && this.mediaSource_.readyState === 'ended'; // do not choose a next segment if all of the following:
-      // 1. this is the last segment in the playlist
-      // 2. end of stream has been called on the media source already
-      // 3. the player is not seeking
-
-      if (next.mediaIndex >= segments.length - 1 && ended && !this.seeking_()) {
-        return null;
-      }
-
-      return this.generateSegmentInfo_(next);
-    };
-
-    _proto.generateSegmentInfo_ = function generateSegmentInfo_(options) {
-      var independent = options.independent,
-          playlist = options.playlist,
-          mediaIndex = options.mediaIndex,
-          startOfSegment = options.startOfSegment,
-          isSyncRequest = options.isSyncRequest,
-          partIndex = options.partIndex,
-          forceTimestampOffset = options.forceTimestampOffset,
-          getMediaInfoForTime = options.getMediaInfoForTime;
-      var segment = playlist.segments[mediaIndex];
-      var part = typeof partIndex === 'number' && segment.parts[partIndex];
-      var segmentInfo = {
-        requestId: 'segment-loader-' + Math.random(),
-        // resolve the segment URL relative to the playlist
-        uri: part && part.resolvedUri || segment.resolvedUri,
-        // the segment's mediaIndex at the time it was requested
-        mediaIndex: mediaIndex,
-        partIndex: part ? partIndex : null,
-        // whether or not to update the SegmentLoader's state with this
-        // segment's mediaIndex
-        isSyncRequest: isSyncRequest,
-        startOfSegment: startOfSegment,
-        // the segment's playlist
-        playlist: playlist,
-        // unencrypted bytes of the segment
-        bytes: null,
-        // when a key is defined for this segment, the encrypted bytes
-        encryptedBytes: null,
-        // The target timestampOffset for this segment when we append it
-        // to the source buffer
-        timestampOffset: null,
-        // The timeline that the segment is in
-        timeline: segment.timeline,
-        // The expected duration of the segment in seconds
-        duration: part && part.duration || segment.duration,
-        // retain the segment in case the playlist updates while doing an async process
-        segment: segment,
-        part: part,
-        byteLength: 0,
-        transmuxer: this.transmuxer_,
-        // type of getMediaInfoForTime that was used to get this segment
-        getMediaInfoForTime: getMediaInfoForTime,
-        independent: independent
-      };
-      var overrideCheck = typeof forceTimestampOffset !== 'undefined' ? forceTimestampOffset : this.isPendingTimestampOffset_;
-      segmentInfo.timestampOffset = this.timestampOffsetForSegment_({
-        segmentTimeline: segment.timeline,
-        currentTimeline: this.currentTimeline_,
-        startOfSegment: startOfSegment,
-        buffered: this.buffered_(),
-        overrideCheck: overrideCheck
-      });
-      var audioBufferedEnd = lastBufferedEnd(this.sourceUpdater_.audioBuffered());
-
-      if (typeof audioBufferedEnd === 'number') {
-        // since the transmuxer is using the actual timing values, but the buffer is
-        // adjusted by the timestamp offset, we must adjust the value here
-        segmentInfo.audioAppendStart = audioBufferedEnd - this.sourceUpdater_.audioTimestampOffset();
-      }
-
-      if (this.sourceUpdater_.videoBuffered().length) {
-        segmentInfo.gopsToAlignWith = gopsSafeToAlignWith(this.gopBuffer_, // since the transmuxer is using the actual timing values, but the time is
-        // adjusted by the timestmap offset, we must adjust the value here
-        this.currentTime_() - this.sourceUpdater_.videoTimestampOffset(), this.timeMapping_);
-      }
-
-      return segmentInfo;
-    } // get the timestampoffset for a segment,
-    // added so that vtt segment loader can override and prevent
-    // adding timestamp offsets.
-    ;
-
-    _proto.timestampOffsetForSegment_ = function timestampOffsetForSegment_(options) {
-      return timestampOffsetForSegment(options);
-    }
-    /**
-     * Determines if the network has enough bandwidth to complete the current segment
-     * request in a timely manner. If not, the request will be aborted early and bandwidth
-     * updated to trigger a playlist switch.
-     *
-     * @param {Object} stats
-     *        Object containing stats about the request timing and size
-     * @private
-     */
-    ;
-
-    _proto.earlyAbortWhenNeeded_ = function earlyAbortWhenNeeded_(stats) {
-      if (this.vhs_.tech_.paused() || // Don't abort if the current playlist is on the lowestEnabledRendition
-      // TODO: Replace using timeout with a boolean indicating whether this playlist is
-      //       the lowestEnabledRendition.
-      !this.xhrOptions_.timeout || // Don't abort if we have no bandwidth information to estimate segment sizes
-      !this.playlist_.attributes.BANDWIDTH) {
-        return;
-      } // Wait at least 1 second since the first byte of data has been received before
-      // using the calculated bandwidth from the progress event to allow the bitrate
-      // to stabilize
-
-
-      if (Date.now() - (stats.firstBytesReceivedAt || Date.now()) < 1000) {
-        return;
-      }
-
-      var currentTime = this.currentTime_();
-      var measuredBandwidth = stats.bandwidth;
-      var segmentDuration = this.pendingSegment_.duration;
-      var requestTimeRemaining = Playlist.estimateSegmentRequestTime(segmentDuration, measuredBandwidth, this.playlist_, stats.bytesReceived); // Subtract 1 from the timeUntilRebuffer so we still consider an early abort
-      // if we are only left with less than 1 second when the request completes.
-      // A negative timeUntilRebuffering indicates we are already rebuffering
-
-      var timeUntilRebuffer$1 = timeUntilRebuffer(this.buffered_(), currentTime, this.vhs_.tech_.playbackRate()) - 1; // Only consider aborting early if the estimated time to finish the download
-      // is larger than the estimated time until the player runs out of forward buffer
-
-      if (requestTimeRemaining <= timeUntilRebuffer$1) {
-        return;
-      }
-
-      var switchCandidate = minRebufferMaxBandwidthSelector({
-        master: this.vhs_.playlists.master,
-        currentTime: currentTime,
-        bandwidth: measuredBandwidth,
-        duration: this.duration_(),
-        segmentDuration: segmentDuration,
-        timeUntilRebuffer: timeUntilRebuffer$1,
-        currentTimeline: this.currentTimeline_,
-        syncController: this.syncController_
-      });
-
-      if (!switchCandidate) {
-        return;
-      }
-
-      var rebufferingImpact = requestTimeRemaining - timeUntilRebuffer$1;
-      var timeSavedBySwitching = rebufferingImpact - switchCandidate.rebufferingImpact;
-      var minimumTimeSaving = 0.5; // If we are already rebuffering, increase the amount of variance we add to the
-      // potential round trip time of the new request so that we are not too aggressive
-      // with switching to a playlist that might save us a fraction of a second.
-
-      if (timeUntilRebuffer$1 <= TIME_FUDGE_FACTOR) {
-        minimumTimeSaving = 1;
-      }
-
-      if (!switchCandidate.playlist || switchCandidate.playlist.uri === this.playlist_.uri || timeSavedBySwitching < minimumTimeSaving) {
-        return;
-      } // set the bandwidth to that of the desired playlist being sure to scale by
-      // BANDWIDTH_VARIANCE and add one so the playlist selector does not exclude it
-      // don't trigger a bandwidthupdate as the bandwidth is artifial
-
-
-      this.bandwidth = switchCandidate.playlist.attributes.BANDWIDTH * Config.BANDWIDTH_VARIANCE + 1;
-      this.trigger('earlyabort');
-    };
-
-    _proto.handleAbort_ = function handleAbort_(segmentInfo) {
-      this.logger_("Aborting " + segmentInfoString(segmentInfo));
-      this.mediaRequestsAborted += 1;
-    }
-    /**
-     * XHR `progress` event handler
-     *
-     * @param {Event}
-     *        The XHR `progress` event
-     * @param {Object} simpleSegment
-     *        A simplified segment object copy
-     * @private
-     */
-    ;
-
-    _proto.handleProgress_ = function handleProgress_(event, simpleSegment) {
-      this.earlyAbortWhenNeeded_(simpleSegment.stats);
-
-      if (this.checkForAbort_(simpleSegment.requestId)) {
-        return;
-      }
-
-      this.trigger('progress');
-    };
-
-    _proto.handleTrackInfo_ = function handleTrackInfo_(simpleSegment, trackInfo) {
-      this.earlyAbortWhenNeeded_(simpleSegment.stats);
-
-      if (this.checkForAbort_(simpleSegment.requestId)) {
-        return;
-      }
-
-      if (this.checkForIllegalMediaSwitch(trackInfo)) {
-        return;
-      }
-
-      trackInfo = trackInfo || {}; // When we have track info, determine what media types this loader is dealing with.
-      // Guard against cases where we're not getting track info at all until we are
-      // certain that all streams will provide it.
-
-      if (!shallowEqual(this.currentMediaInfo_, trackInfo)) {
-        this.appendInitSegment_ = {
-          audio: true,
-          video: true
-        };
-        this.startingMediaInfo_ = trackInfo;
-        this.currentMediaInfo_ = trackInfo;
-        this.logger_('trackinfo update', trackInfo);
-        this.trigger('trackinfo');
-      } // trackinfo may cause an abort if the trackinfo
-      // causes a codec change to an unsupported codec.
-
-
-      if (this.checkForAbort_(simpleSegment.requestId)) {
-        return;
-      } // set trackinfo on the pending segment so that
-      // it can append.
-
-
-      this.pendingSegment_.trackInfo = trackInfo; // check if any calls were waiting on the track info
-
-      if (this.hasEnoughInfoToAppend_()) {
-        this.processCallQueue_();
-      }
-    };
-
-    _proto.handleTimingInfo_ = function handleTimingInfo_(simpleSegment, mediaType, timeType, time) {
-      this.earlyAbortWhenNeeded_(simpleSegment.stats);
-
-      if (this.checkForAbort_(simpleSegment.requestId)) {
-        return;
-      }
-
-      var segmentInfo = this.pendingSegment_;
-      var timingInfoProperty = timingInfoPropertyForMedia(mediaType);
-      segmentInfo[timingInfoProperty] = segmentInfo[timingInfoProperty] || {};
-      segmentInfo[timingInfoProperty][timeType] = time;
-      this.logger_("timinginfo: " + mediaType + " - " + timeType + " - " + time); // check if any calls were waiting on the timing info
-
-      if (this.hasEnoughInfoToAppend_()) {
-        this.processCallQueue_();
-      }
-    };
-
-    _proto.handleCaptions_ = function handleCaptions_(simpleSegment, captionData) {
-      var _this2 = this;
-
-      this.earlyAbortWhenNeeded_(simpleSegment.stats);
-
-      if (this.checkForAbort_(simpleSegment.requestId)) {
-        return;
-      } // This could only happen with fmp4 segments, but
-      // should still not happen in general
-
-
-      if (captionData.length === 0) {
-        this.logger_('SegmentLoader received no captions from a caption event');
-        return;
-      }
-
-      var segmentInfo = this.pendingSegment_; // Wait until we have some video data so that caption timing
-      // can be adjusted by the timestamp offset
-
-      if (!segmentInfo.hasAppendedData_) {
-        this.metadataQueue_.caption.push(this.handleCaptions_.bind(this, simpleSegment, captionData));
-        return;
-      }
-
-      var timestampOffset = this.sourceUpdater_.videoTimestampOffset() === null ? this.sourceUpdater_.audioTimestampOffset() : this.sourceUpdater_.videoTimestampOffset();
-      var captionTracks = {}; // get total start/end and captions for each track/stream
-
-      captionData.forEach(function (caption) {
-        // caption.stream is actually a track name...
-        // set to the existing values in tracks or default values
-        captionTracks[caption.stream] = captionTracks[caption.stream] || {
-          // Infinity, as any other value will be less than this
-          startTime: Infinity,
-          captions: [],
-          // 0 as an other value will be more than this
-          endTime: 0
-        };
-        var captionTrack = captionTracks[caption.stream];
-        captionTrack.startTime = Math.min(captionTrack.startTime, caption.startTime + timestampOffset);
-        captionTrack.endTime = Math.max(captionTrack.endTime, caption.endTime + timestampOffset);
-        captionTrack.captions.push(caption);
-      });
-      Object.keys(captionTracks).forEach(function (trackName) {
-        var _captionTracks$trackN = captionTracks[trackName],
-            startTime = _captionTracks$trackN.startTime,
-            endTime = _captionTracks$trackN.endTime,
-            captions = _captionTracks$trackN.captions;
-        var inbandTextTracks = _this2.inbandTextTracks_;
-
-        _this2.logger_("adding cues from " + startTime + " -> " + endTime + " for " + trackName);
-
-        createCaptionsTrackIfNotExists(inbandTextTracks, _this2.vhs_.tech_, trackName); // clear out any cues that start and end at the same time period for the same track.
-        // We do this because a rendition change that also changes the timescale for captions
-        // will result in captions being re-parsed for certain segments. If we add them again
-        // without clearing we will have two of the same captions visible.
-
-        removeCuesFromTrack(startTime, endTime, inbandTextTracks[trackName]);
-        addCaptionData({
-          captionArray: captions,
-          inbandTextTracks: inbandTextTracks,
-          timestampOffset: timestampOffset
-        });
-      }); // Reset stored captions since we added parsed
-      // captions to a text track at this point
-
-      if (this.transmuxer_) {
-        this.transmuxer_.postMessage({
-          action: 'clearParsedMp4Captions'
-        });
-      }
-    };
-
-    _proto.handleId3_ = function handleId3_(simpleSegment, id3Frames, dispatchType) {
-      this.earlyAbortWhenNeeded_(simpleSegment.stats);
-
-      if (this.checkForAbort_(simpleSegment.requestId)) {
-        return;
-      }
-
-      var segmentInfo = this.pendingSegment_; // we need to have appended data in order for the timestamp offset to be set
-
-      if (!segmentInfo.hasAppendedData_) {
-        this.metadataQueue_.id3.push(this.handleId3_.bind(this, simpleSegment, id3Frames, dispatchType));
-        return;
-      }
-
-      var timestampOffset = this.sourceUpdater_.videoTimestampOffset() === null ? this.sourceUpdater_.audioTimestampOffset() : this.sourceUpdater_.videoTimestampOffset(); // There's potentially an issue where we could double add metadata if there's a muxed
-      // audio/video source with a metadata track, and an alt audio with a metadata track.
-      // However, this probably won't happen, and if it does it can be handled then.
-
-      createMetadataTrackIfNotExists(this.inbandTextTracks_, dispatchType, this.vhs_.tech_);
-      addMetadata({
-        inbandTextTracks: this.inbandTextTracks_,
-        metadataArray: id3Frames,
-        timestampOffset: timestampOffset,
-        videoDuration: this.duration_()
-      });
-    };
-
-    _proto.processMetadataQueue_ = function processMetadataQueue_() {
-      this.metadataQueue_.id3.forEach(function (fn) {
-        return fn();
-      });
-      this.metadataQueue_.caption.forEach(function (fn) {
-        return fn();
-      });
-      this.metadataQueue_.id3 = [];
-      this.metadataQueue_.caption = [];
-    };
-
-    _proto.processCallQueue_ = function processCallQueue_() {
-      var callQueue = this.callQueue_; // Clear out the queue before the queued functions are run, since some of the
-      // functions may check the length of the load queue and default to pushing themselves
-      // back onto the queue.
-
-      this.callQueue_ = [];
-      callQueue.forEach(function (fun) {
-        return fun();
-      });
-    };
-
-    _proto.processLoadQueue_ = function processLoadQueue_() {
-      var loadQueue = this.loadQueue_; // Clear out the queue before the queued functions are run, since some of the
-      // functions may check the length of the load queue and default to pushing themselves
-      // back onto the queue.
-
-      this.loadQueue_ = [];
-      loadQueue.forEach(function (fun) {
-        return fun();
-      });
-    }
-    /**
-     * Determines whether the loader has enough info to load the next segment.
-     *
-     * @return {boolean}
-     *         Whether or not the loader has enough info to load the next segment
-     */
-    ;
-
-    _proto.hasEnoughInfoToLoad_ = function hasEnoughInfoToLoad_() {
-      // Since primary timing goes by video, only the audio loader potentially needs to wait
-      // to load.
-      if (this.loaderType_ !== 'audio') {
-        return true;
-      }
-
-      var segmentInfo = this.pendingSegment_; // A fill buffer must have already run to establish a pending segment before there's
-      // enough info to load.
-
-      if (!segmentInfo) {
-        return false;
-      } // The first segment can and should be loaded immediately so that source buffers are
-      // created together (before appending). Source buffer creation uses the presence of
-      // audio and video data to determine whether to create audio/video source buffers, and
-      // uses processed (transmuxed or parsed) media to determine the types required.
-
-
-      if (!this.getCurrentMediaInfo_()) {
-        return true;
-      }
-
-      if ( // Technically, instead of waiting to load a segment on timeline changes, a segment
-      // can be requested and downloaded and only wait before it is transmuxed or parsed.
-      // But in practice, there are a few reasons why it is better to wait until a loader
-      // is ready to append that segment before requesting and downloading:
-      //
-      // 1. Because audio and main loaders cross discontinuities together, if this loader
-      //    is waiting for the other to catch up, then instead of requesting another
-      //    segment and using up more bandwidth, by not yet loading, more bandwidth is
-      //    allotted to the loader currently behind.
-      // 2. media-segment-request doesn't have to have logic to consider whether a segment
-      // is ready to be processed or not, isolating the queueing behavior to the loader.
-      // 3. The audio loader bases some of its segment properties on timing information
-      //    provided by the main loader, meaning that, if the logic for waiting on
-      //    processing was in media-segment-request, then it would also need to know how
-      //    to re-generate the segment information after the main loader caught up.
-      shouldWaitForTimelineChange({
-        timelineChangeController: this.timelineChangeController_,
-        currentTimeline: this.currentTimeline_,
-        segmentTimeline: segmentInfo.timeline,
-        loaderType: this.loaderType_,
-        audioDisabled: this.audioDisabled_
-      })) {
-        return false;
-      }
-
-      return true;
-    };
-
-    _proto.getCurrentMediaInfo_ = function getCurrentMediaInfo_(segmentInfo) {
-      if (segmentInfo === void 0) {
-        segmentInfo = this.pendingSegment_;
-      }
-
-      return segmentInfo && segmentInfo.trackInfo || this.currentMediaInfo_;
-    };
-
-    _proto.getMediaInfo_ = function getMediaInfo_(segmentInfo) {
-      if (segmentInfo === void 0) {
-        segmentInfo = this.pendingSegment_;
-      }
-
-      return this.getCurrentMediaInfo_(segmentInfo) || this.startingMediaInfo_;
-    };
-
-    _proto.hasEnoughInfoToAppend_ = function hasEnoughInfoToAppend_() {
-      if (!this.sourceUpdater_.ready()) {
-        return false;
-      } // If content needs to be removed or the loader is waiting on an append reattempt,
-      // then no additional content should be appended until the prior append is resolved.
-
-
-      if (this.waitingOnRemove_ || this.quotaExceededErrorRetryTimeout_) {
-        return false;
-      }
-
-      var segmentInfo = this.pendingSegment_;
-      var trackInfo = this.getCurrentMediaInfo_(); // no segment to append any data for or
-      // we do not have information on this specific
-      // segment yet
-
-      if (!segmentInfo || !trackInfo) {
-        return false;
-      }
-
-      var hasAudio = trackInfo.hasAudio,
-          hasVideo = trackInfo.hasVideo,
-          isMuxed = trackInfo.isMuxed;
-
-      if (hasVideo && !segmentInfo.videoTimingInfo) {
-        return false;
-      } // muxed content only relies on video timing information for now.
-
-
-      if (hasAudio && !this.audioDisabled_ && !isMuxed && !segmentInfo.audioTimingInfo) {
-        return false;
-      }
-
-      if (shouldWaitForTimelineChange({
-        timelineChangeController: this.timelineChangeController_,
-        currentTimeline: this.currentTimeline_,
-        segmentTimeline: segmentInfo.timeline,
-        loaderType: this.loaderType_,
-        audioDisabled: this.audioDisabled_
-      })) {
-        return false;
-      }
-
-      return true;
-    };
-
-    _proto.handleData_ = function handleData_(simpleSegment, result) {
-      this.earlyAbortWhenNeeded_(simpleSegment.stats);
-
-      if (this.checkForAbort_(simpleSegment.requestId)) {
-        return;
-      } // If there's anything in the call queue, then this data came later and should be
-      // executed after the calls currently queued.
-
-
-      if (this.callQueue_.length || !this.hasEnoughInfoToAppend_()) {
-        this.callQueue_.push(this.handleData_.bind(this, simpleSegment, result));
-        return;
-      }
-
-      var segmentInfo = this.pendingSegment_; // update the time mapping so we can translate from display time to media time
-
-      this.setTimeMapping_(segmentInfo.timeline); // for tracking overall stats
-
-      this.updateMediaSecondsLoaded_(segmentInfo.part || segmentInfo.segment); // Note that the state isn't changed from loading to appending. This is because abort
-      // logic may change behavior depending on the state, and changing state too early may
-      // inflate our estimates of bandwidth. In the future this should be re-examined to
-      // note more granular states.
-      // don't process and append data if the mediaSource is closed
-
-      if (this.mediaSource_.readyState === 'closed') {
-        return;
-      } // if this request included an initialization segment, save that data
-      // to the initSegment cache
-
-
-      if (simpleSegment.map) {
-        simpleSegment.map = this.initSegmentForMap(simpleSegment.map, true); // move over init segment properties to media request
-
-        segmentInfo.segment.map = simpleSegment.map;
-      } // if this request included a segment key, save that data in the cache
-
-
-      if (simpleSegment.key) {
-        this.segmentKey(simpleSegment.key, true);
-      }
-
-      segmentInfo.isFmp4 = simpleSegment.isFmp4;
-      segmentInfo.timingInfo = segmentInfo.timingInfo || {};
-
-      if (segmentInfo.isFmp4) {
-        this.trigger('fmp4');
-        segmentInfo.timingInfo.start = segmentInfo[timingInfoPropertyForMedia(result.type)].start;
-      } else {
-        var trackInfo = this.getCurrentMediaInfo_();
-        var useVideoTimingInfo = this.loaderType_ === 'main' && trackInfo && trackInfo.hasVideo;
-        var firstVideoFrameTimeForData;
-
-        if (useVideoTimingInfo) {
-          firstVideoFrameTimeForData = segmentInfo.videoTimingInfo.start;
-        } // Segment loader knows more about segment timing than the transmuxer (in certain
-        // aspects), so make any changes required for a more accurate start time.
-        // Don't set the end time yet, as the segment may not be finished processing.
-
-
-        segmentInfo.timingInfo.start = this.trueSegmentStart_({
-          currentStart: segmentInfo.timingInfo.start,
-          playlist: segmentInfo.playlist,
-          mediaIndex: segmentInfo.mediaIndex,
-          currentVideoTimestampOffset: this.sourceUpdater_.videoTimestampOffset(),
-          useVideoTimingInfo: useVideoTimingInfo,
-          firstVideoFrameTimeForData: firstVideoFrameTimeForData,
-          videoTimingInfo: segmentInfo.videoTimingInfo,
-          audioTimingInfo: segmentInfo.audioTimingInfo
-        });
-      } // Init segments for audio and video only need to be appended in certain cases. Now
-      // that data is about to be appended, we can check the final cases to determine
-      // whether we should append an init segment.
-
-
-      this.updateAppendInitSegmentStatus(segmentInfo, result.type); // Timestamp offset should be updated once we get new data and have its timing info,
-      // as we use the start of the segment to offset the best guess (playlist provided)
-      // timestamp offset.
-
-      this.updateSourceBufferTimestampOffset_(segmentInfo); // if this is a sync request we need to determine whether it should
-      // be appended or not.
-
-      if (segmentInfo.isSyncRequest) {
-        // first save/update our timing info for this segment.
-        // this is what allows us to choose an accurate segment
-        // and the main reason we make a sync request.
-        this.updateTimingInfoEnd_(segmentInfo);
-        this.syncController_.saveSegmentTimingInfo({
-          segmentInfo: segmentInfo,
-          shouldSaveTimelineMapping: this.loaderType_ === 'main'
-        });
-        var next = this.chooseNextRequest_(); // If the sync request isn't the segment that would be requested next
-        // after taking into account its timing info, do not append it.
-
-        if (next.mediaIndex !== segmentInfo.mediaIndex || next.partIndex !== segmentInfo.partIndex) {
-          this.logger_('sync segment was incorrect, not appending');
-          return;
-        } // otherwise append it like any other segment as our guess was correct.
-
-
-        this.logger_('sync segment was correct, appending');
-      } // Save some state so that in the future anything waiting on first append (and/or
-      // timestamp offset(s)) can process immediately. While the extra state isn't optimal,
-      // we need some notion of whether the timestamp offset or other relevant information
-      // has had a chance to be set.
-
-
-      segmentInfo.hasAppendedData_ = true; // Now that the timestamp offset should be set, we can append any waiting ID3 tags.
-
-      this.processMetadataQueue_();
-      this.appendData_(segmentInfo, result);
-    };
-
-    _proto.updateAppendInitSegmentStatus = function updateAppendInitSegmentStatus(segmentInfo, type) {
-      // alt audio doesn't manage timestamp offset
-      if (this.loaderType_ === 'main' && typeof segmentInfo.timestampOffset === 'number' && // in the case that we're handling partial data, we don't want to append an init
-      // segment for each chunk
-      !segmentInfo.changedTimestampOffset) {
-        // if the timestamp offset changed, the timeline may have changed, so we have to re-
-        // append init segments
-        this.appendInitSegment_ = {
-          audio: true,
-          video: true
-        };
-      }
-
-      if (this.playlistOfLastInitSegment_[type] !== segmentInfo.playlist) {
-        // make sure we append init segment on playlist changes, in case the media config
-        // changed
-        this.appendInitSegment_[type] = true;
-      }
-    };
-
-    _proto.getInitSegmentAndUpdateState_ = function getInitSegmentAndUpdateState_(_ref4) {
-      var type = _ref4.type,
-          initSegment = _ref4.initSegment,
-          map = _ref4.map,
-          playlist = _ref4.playlist; // "The EXT-X-MAP tag specifies how to obtain the Media Initialization Section
-      // (Section 3) required to parse the applicable Media Segments.  It applies to every
-      // Media Segment that appears after it in the Playlist until the next EXT-X-MAP tag
-      // or until the end of the playlist."
-      // https://tools.ietf.org/html/draft-pantos-http-live-streaming-23#section-4.3.2.5
-
-      if (map) {
-        var id = initSegmentId(map);
-
-        if (this.activeInitSegmentId_ === id) {
-          // don't need to re-append the init segment if the ID matches
-          return null;
-        } // a map-specified init segment takes priority over any transmuxed (or otherwise
-        // obtained) init segment
-        //
-        // this also caches the init segment for later use
-
-
-        initSegment = this.initSegmentForMap(map, true).bytes;
-        this.activeInitSegmentId_ = id;
-      } // We used to always prepend init segments for video, however, that shouldn't be
-      // necessary. Instead, we should only append on changes, similar to what we've always
-      // done for audio. This is more important (though may not be that important) for
-      // frame-by-frame appending for LHLS, simply because of the increased quantity of
-      // appends.
-
-
-      if (initSegment && this.appendInitSegment_[type]) {
-        // Make sure we track the playlist that we last used for the init segment, so that
-        // we can re-append the init segment in the event that we get data from a new
-        // playlist. Discontinuities and track changes are handled in other sections.
-        this.playlistOfLastInitSegment_[type] = playlist; // Disable future init segment appends for this type. Until a change is necessary.
-
-        this.appendInitSegment_[type] = false; // we need to clear out the fmp4 active init segment id, since
-        // we are appending the muxer init segment
-
-        this.activeInitSegmentId_ = null;
-        return initSegment;
-      }
-
-      return null;
-    };
-
-    _proto.handleQuotaExceededError_ = function handleQuotaExceededError_(_ref5, error) {
-      var _this3 = this;
-
-      var segmentInfo = _ref5.segmentInfo,
-          type = _ref5.type,
-          bytes = _ref5.bytes;
-      var audioBuffered = this.sourceUpdater_.audioBuffered();
-      var videoBuffered = this.sourceUpdater_.videoBuffered(); // For now we're ignoring any notion of gaps in the buffer, but they, in theory,
-      // should be cleared out during the buffer removals. However, log in case it helps
-      // debug.
-
-      if (audioBuffered.length > 1) {
-        this.logger_('On QUOTA_EXCEEDED_ERR, found gaps in the audio buffer: ' + timeRangesToArray(audioBuffered).join(', '));
-      }
-
-      if (videoBuffered.length > 1) {
-        this.logger_('On QUOTA_EXCEEDED_ERR, found gaps in the video buffer: ' + timeRangesToArray(videoBuffered).join(', '));
-      }
-
-      var audioBufferStart = audioBuffered.length ? audioBuffered.start(0) : 0;
-      var audioBufferEnd = audioBuffered.length ? audioBuffered.end(audioBuffered.length - 1) : 0;
-      var videoBufferStart = videoBuffered.length ? videoBuffered.start(0) : 0;
-      var videoBufferEnd = videoBuffered.length ? videoBuffered.end(videoBuffered.length - 1) : 0;
-
-      if (audioBufferEnd - audioBufferStart <= MIN_BACK_BUFFER && videoBufferEnd - videoBufferStart <= MIN_BACK_BUFFER) {
-        // Can't remove enough buffer to make room for new segment (or the browser doesn't
-        // allow for appends of segments this size). In the future, it may be possible to
-        // split up the segment and append in pieces, but for now, error out this playlist
-        // in an attempt to switch to a more manageable rendition.
-        this.logger_('On QUOTA_EXCEEDED_ERR, single segment too large to append to ' + 'buffer, triggering an error. ' + ("Appended byte length: " + bytes.byteLength + ", ") + ("audio buffer: " + timeRangesToArray(audioBuffered).join(', ') + ", ") + ("video buffer: " + timeRangesToArray(videoBuffered).join(', ') + ", "));
-        this.error({
-          message: 'Quota exceeded error with append of a single segment of content',
-          excludeUntil: Infinity
-        });
-        this.trigger('error');
-        return;
-      } // To try to resolve the quota exceeded error, clear back buffer and retry. This means
-      // that the segment-loader should block on future events until this one is handled, so
-      // that it doesn't keep moving onto further segments. Adding the call to the call
-      // queue will prevent further appends until waitingOnRemove_ and
-      // quotaExceededErrorRetryTimeout_ are cleared.
-      //
-      // Note that this will only block the current loader. In the case of demuxed content,
-      // the other load may keep filling as fast as possible. In practice, this should be
-      // OK, as it is a rare case when either audio has a high enough bitrate to fill up a
-      // source buffer, or video fills without enough room for audio to append (and without
-      // the availability of clearing out seconds of back buffer to make room for audio).
-      // But it might still be good to handle this case in the future as a TODO.
-
-
-      this.waitingOnRemove_ = true;
-      this.callQueue_.push(this.appendToSourceBuffer_.bind(this, {
-        segmentInfo: segmentInfo,
-        type: type,
-        bytes: bytes
-      }));
-      var currentTime = this.currentTime_(); // Try to remove as much audio and video as possible to make room for new content
-      // before retrying.
-
-      var timeToRemoveUntil = currentTime - MIN_BACK_BUFFER;
-      this.logger_("On QUOTA_EXCEEDED_ERR, removing audio/video from 0 to " + timeToRemoveUntil);
-      this.remove(0, timeToRemoveUntil, function () {
-        _this3.logger_("On QUOTA_EXCEEDED_ERR, retrying append in " + MIN_BACK_BUFFER + "s");
-
-        _this3.waitingOnRemove_ = false; // wait the length of time alotted in the back buffer to prevent wasted
-        // attempts (since we can't clear less than the minimum)
-
-        _this3.quotaExceededErrorRetryTimeout_ = window.setTimeout(function () {
-          _this3.logger_('On QUOTA_EXCEEDED_ERR, re-processing call queue');
-
-          _this3.quotaExceededErrorRetryTimeout_ = null;
-
-          _this3.processCallQueue_();
-        }, MIN_BACK_BUFFER * 1000);
-      }, true);
-    };
-
-    _proto.handleAppendError_ = function handleAppendError_(_ref6, error) {
-      var segmentInfo = _ref6.segmentInfo,
-          type = _ref6.type,
-          bytes = _ref6.bytes; // if there's no error, nothing to do
-
-      if (!error) {
-        return;
-      }
-
-      if (error.code === QUOTA_EXCEEDED_ERR) {
-        this.handleQuotaExceededError_({
-          segmentInfo: segmentInfo,
-          type: type,
-          bytes: bytes
-        }); // A quota exceeded error should be recoverable with a future re-append, so no need
-        // to trigger an append error.
-
-        return;
-      }
-
-      this.logger_('Received non QUOTA_EXCEEDED_ERR on append', error);
-      this.error(type + " append of " + bytes.length + "b failed for segment " + ("#" + segmentInfo.mediaIndex + " in playlist " + segmentInfo.playlist.id)); // If an append errors, we often can't recover.
-      // (see https://w3c.github.io/media-source/#sourcebuffer-append-error).
-      //
-      // Trigger a special error so that it can be handled separately from normal,
-      // recoverable errors.
-
-      this.trigger('appenderror');
-    };
-
-    _proto.appendToSourceBuffer_ = function appendToSourceBuffer_(_ref7) {
-      var segmentInfo = _ref7.segmentInfo,
-          type = _ref7.type,
-          initSegment = _ref7.initSegment,
-          data = _ref7.data,
-          bytes = _ref7.bytes; // If this is a re-append, bytes were already created and don't need to be recreated
-
-      if (!bytes) {
-        var segments = [data];
-        var byteLength = data.byteLength;
-
-        if (initSegment) {
-          // if the media initialization segment is changing, append it before the content
-          // segment
-          segments.unshift(initSegment);
-          byteLength += initSegment.byteLength;
-        } // Technically we should be OK appending the init segment separately, however, we
-        // haven't yet tested that, and prepending is how we have always done things.
-
-
-        bytes = concatSegments({
-          bytes: byteLength,
-          segments: segments
-        });
-      }
-
-      this.sourceUpdater_.appendBuffer({
-        segmentInfo: segmentInfo,
-        type: type,
-        bytes: bytes
-      }, this.handleAppendError_.bind(this, {
-        segmentInfo: segmentInfo,
-        type: type,
-        bytes: bytes
-      }));
-    };
-
-    _proto.handleSegmentTimingInfo_ = function handleSegmentTimingInfo_(type, requestId, segmentTimingInfo) {
-      if (!this.pendingSegment_ || requestId !== this.pendingSegment_.requestId) {
-        return;
-      }
-
-      var segment = this.pendingSegment_.segment;
-      var timingInfoProperty = type + "TimingInfo";
-
-      if (!segment[timingInfoProperty]) {
-        segment[timingInfoProperty] = {};
-      }
-
-      segment[timingInfoProperty].transmuxerPrependedSeconds = segmentTimingInfo.prependedContentDuration || 0;
-      segment[timingInfoProperty].transmuxedPresentationStart = segmentTimingInfo.start.presentation;
-      segment[timingInfoProperty].transmuxedDecodeStart = segmentTimingInfo.start.decode;
-      segment[timingInfoProperty].transmuxedPresentationEnd = segmentTimingInfo.end.presentation;
-      segment[timingInfoProperty].transmuxedDecodeEnd = segmentTimingInfo.end.decode; // mainly used as a reference for debugging
-
-      segment[timingInfoProperty].baseMediaDecodeTime = segmentTimingInfo.baseMediaDecodeTime;
-    };
-
-    _proto.appendData_ = function appendData_(segmentInfo, result) {
-      var type = result.type,
-          data = result.data;
-
-      if (!data || !data.byteLength) {
-        return;
-      }
-
-      if (type === 'audio' && this.audioDisabled_) {
-        return;
-      }
-
-      var initSegment = this.getInitSegmentAndUpdateState_({
-        type: type,
-        initSegment: result.initSegment,
-        playlist: segmentInfo.playlist,
-        map: segmentInfo.isFmp4 ? segmentInfo.segment.map : null
-      });
-      this.appendToSourceBuffer_({
-        segmentInfo: segmentInfo,
-        type: type,
-        initSegment: initSegment,
-        data: data
-      });
-    }
-    /**
-     * load a specific segment from a request into the buffer
-     *
-     * @private
-     */
-    ;
-
-    _proto.loadSegment_ = function loadSegment_(segmentInfo) {
-      var _this4 = this;
-
-      this.state = 'WAITING';
-      this.pendingSegment_ = segmentInfo;
-      this.trimBackBuffer_(segmentInfo);
-
-      if (typeof segmentInfo.timestampOffset === 'number') {
-        if (this.transmuxer_) {
-          this.transmuxer_.postMessage({
-            action: 'clearAllMp4Captions'
-          });
-        }
-      }
-
-      if (!this.hasEnoughInfoToLoad_()) {
-        this.loadQueue_.push(function () {
-          // regenerate the audioAppendStart, timestampOffset, etc as they
-          // may have changed since this function was added to the queue.
-          var options = _extends_1({}, segmentInfo, {
-            forceTimestampOffset: true
-          });
-
-          _extends_1(segmentInfo, _this4.generateSegmentInfo_(options));
-
-          _this4.isPendingTimestampOffset_ = false;
-
-          _this4.updateTransmuxerAndRequestSegment_(segmentInfo);
-        });
-        return;
-      }
-
-      this.updateTransmuxerAndRequestSegment_(segmentInfo);
-    };
-
-    _proto.updateTransmuxerAndRequestSegment_ = function updateTransmuxerAndRequestSegment_(segmentInfo) {
-      var _this5 = this; // We'll update the source buffer's timestamp offset once we have transmuxed data, but
-      // the transmuxer still needs to be updated before then.
-      //
-      // Even though keepOriginalTimestamps is set to true for the transmuxer, timestamp
-      // offset must be passed to the transmuxer for stream correcting adjustments.
-
-
-      if (this.shouldUpdateTransmuxerTimestampOffset_(segmentInfo.timestampOffset)) {
-        this.gopBuffer_.length = 0; // gopsToAlignWith was set before the GOP buffer was cleared
-
-        segmentInfo.gopsToAlignWith = [];
-        this.timeMapping_ = 0; // reset values in the transmuxer since a discontinuity should start fresh
-
-        this.transmuxer_.postMessage({
-          action: 'reset'
-        });
-        this.transmuxer_.postMessage({
-          action: 'setTimestampOffset',
-          timestampOffset: segmentInfo.timestampOffset
-        });
-      }
-
-      var simpleSegment = this.createSimplifiedSegmentObj_(segmentInfo);
-      var isEndOfStream = this.isEndOfStream_(segmentInfo.mediaIndex, segmentInfo.playlist, segmentInfo.partIndex);
-      var isWalkingForward = this.mediaIndex !== null;
-      var isDiscontinuity = segmentInfo.timeline !== this.currentTimeline_ && // currentTimeline starts at -1, so we shouldn't end the timeline switching to 0,
-      // the first timeline
-      segmentInfo.timeline > 0;
-      var isEndOfTimeline = isEndOfStream || isWalkingForward && isDiscontinuity;
-      this.logger_("Requesting " + segmentInfoString(segmentInfo)); // If there's an init segment associated with this segment, but it is not cached (identified by a lack of bytes),
-      // then this init segment has never been seen before and should be appended.
-      //
-      // At this point the content type (audio/video or both) is not yet known, but it should be safe to set
-      // both to true and leave the decision of whether to append the init segment to append time.
-
-      if (simpleSegment.map && !simpleSegment.map.bytes) {
-        this.logger_('going to request init segment.');
-        this.appendInitSegment_ = {
-          video: true,
-          audio: true
-        };
-      }
-
-      segmentInfo.abortRequests = mediaSegmentRequest({
-        xhr: this.vhs_.xhr,
-        xhrOptions: this.xhrOptions_,
-        decryptionWorker: this.decrypter_,
-        segment: simpleSegment,
-        abortFn: this.handleAbort_.bind(this, segmentInfo),
-        progressFn: this.handleProgress_.bind(this),
-        trackInfoFn: this.handleTrackInfo_.bind(this),
-        timingInfoFn: this.handleTimingInfo_.bind(this),
-        videoSegmentTimingInfoFn: this.handleSegmentTimingInfo_.bind(this, 'video', segmentInfo.requestId),
-        audioSegmentTimingInfoFn: this.handleSegmentTimingInfo_.bind(this, 'audio', segmentInfo.requestId),
-        captionsFn: this.handleCaptions_.bind(this),
-        isEndOfTimeline: isEndOfTimeline,
-        endedTimelineFn: function endedTimelineFn() {
-          _this5.logger_('received endedtimeline callback');
-        },
-        id3Fn: this.handleId3_.bind(this),
-        dataFn: this.handleData_.bind(this),
-        doneFn: this.segmentRequestFinished_.bind(this),
-        onTransmuxerLog: function onTransmuxerLog(_ref8) {
-          var message = _ref8.message,
-              level = _ref8.level,
-              stream = _ref8.stream;
-
-          _this5.logger_(segmentInfoString(segmentInfo) + " logged from transmuxer stream " + stream + " as a " + level + ": " + message);
-        }
-      });
-    }
-    /**
-     * trim the back buffer so that we don't have too much data
-     * in the source buffer
-     *
-     * @private
-     *
-     * @param {Object} segmentInfo - the current segment
-     */
-    ;
-
-    _proto.trimBackBuffer_ = function trimBackBuffer_(segmentInfo) {
-      var removeToTime = safeBackBufferTrimTime(this.seekable_(), this.currentTime_(), this.playlist_.targetDuration || 10); // Chrome has a hard limit of 150MB of
-      // buffer and a very conservative "garbage collector"
-      // We manually clear out the old buffer to ensure
-      // we don't trigger the QuotaExceeded error
-      // on the source buffer during subsequent appends
-
-      if (removeToTime > 0) {
-        this.remove(0, removeToTime);
-      }
-    }
-    /**
-     * created a simplified copy of the segment object with just the
-     * information necessary to perform the XHR and decryption
-     *
-     * @private
-     *
-     * @param {Object} segmentInfo - the current segment
-     * @return {Object} a simplified segment object copy
-     */
-    ;
-
-    _proto.createSimplifiedSegmentObj_ = function createSimplifiedSegmentObj_(segmentInfo) {
-      var segment = segmentInfo.segment;
-      var part = segmentInfo.part;
-      var simpleSegment = {
-        resolvedUri: part ? part.resolvedUri : segment.resolvedUri,
-        byterange: part ? part.byterange : segment.byterange,
-        requestId: segmentInfo.requestId,
-        transmuxer: segmentInfo.transmuxer,
-        audioAppendStart: segmentInfo.audioAppendStart,
-        gopsToAlignWith: segmentInfo.gopsToAlignWith,
-        part: segmentInfo.part
-      };
-      var previousSegment = segmentInfo.playlist.segments[segmentInfo.mediaIndex - 1];
-
-      if (previousSegment && previousSegment.timeline === segment.timeline) {
-        // The baseStartTime of a segment is used to handle rollover when probing the TS
-        // segment to retrieve timing information. Since the probe only looks at the media's
-        // times (e.g., PTS and DTS values of the segment), and doesn't consider the
-        // player's time (e.g., player.currentTime()), baseStartTime should reflect the
-        // media time as well. transmuxedDecodeEnd represents the end time of a segment, in
-        // seconds of media time, so should be used here. The previous segment is used since
-        // the end of the previous segment should represent the beginning of the current
-        // segment, so long as they are on the same timeline.
-        if (previousSegment.videoTimingInfo) {
-          simpleSegment.baseStartTime = previousSegment.videoTimingInfo.transmuxedDecodeEnd;
-        } else if (previousSegment.audioTimingInfo) {
-          simpleSegment.baseStartTime = previousSegment.audioTimingInfo.transmuxedDecodeEnd;
-        }
-      }
-
-      if (segment.key) {
-        // if the media sequence is greater than 2^32, the IV will be incorrect
-        // assuming 10s segments, that would be about 1300 years
-        var iv = segment.key.iv || new Uint32Array([0, 0, 0, segmentInfo.mediaIndex + segmentInfo.playlist.mediaSequence]);
-        simpleSegment.key = this.segmentKey(segment.key);
-        simpleSegment.key.iv = iv;
-      }
-
-      if (segment.map) {
-        simpleSegment.map = this.initSegmentForMap(segment.map);
-      }
-
-      return simpleSegment;
-    };
-
-    _proto.saveTransferStats_ = function saveTransferStats_(stats) {
-      // every request counts as a media request even if it has been aborted
-      // or canceled due to a timeout
-      this.mediaRequests += 1;
-
-      if (stats) {
-        this.mediaBytesTransferred += stats.bytesReceived;
-        this.mediaTransferDuration += stats.roundTripTime;
-      }
-    };
-
-    _proto.saveBandwidthRelatedStats_ = function saveBandwidthRelatedStats_(duration, stats) {
-      // byteLength will be used for throughput, and should be based on bytes receieved,
-      // which we only know at the end of the request and should reflect total bytes
-      // downloaded rather than just bytes processed from components of the segment
-      this.pendingSegment_.byteLength = stats.bytesReceived;
-
-      if (duration < MIN_SEGMENT_DURATION_TO_SAVE_STATS) {
-        this.logger_("Ignoring segment's bandwidth because its duration of " + duration + (" is less than the min to record " + MIN_SEGMENT_DURATION_TO_SAVE_STATS));
-        return;
-      }
-
-      this.bandwidth = stats.bandwidth;
-      this.roundTrip = stats.roundTripTime;
-    };
-
-    _proto.handleTimeout_ = function handleTimeout_() {
-      // although the VTT segment loader bandwidth isn't really used, it's good to
-      // maintain functinality between segment loaders
-      this.mediaRequestsTimedout += 1;
-      this.bandwidth = 1;
-      this.roundTrip = NaN;
-      this.trigger('bandwidthupdate');
-    }
-    /**
-     * Handle the callback from the segmentRequest function and set the
-     * associated SegmentLoader state and errors if necessary
-     *
-     * @private
-     */
-    ;
-
-    _proto.segmentRequestFinished_ = function segmentRequestFinished_(error, simpleSegment, result) {
-      // TODO handle special cases, e.g., muxed audio/video but only audio in the segment
-      // check the call queue directly since this function doesn't need to deal with any
-      // data, and can continue even if the source buffers are not set up and we didn't get
-      // any data from the segment
-      if (this.callQueue_.length) {
-        this.callQueue_.push(this.segmentRequestFinished_.bind(this, error, simpleSegment, result));
-        return;
-      }
-
-      this.saveTransferStats_(simpleSegment.stats); // The request was aborted and the SegmentLoader has already been reset
-
-      if (!this.pendingSegment_) {
-        return;
-      } // the request was aborted and the SegmentLoader has already started
-      // another request. this can happen when the timeout for an aborted
-      // request triggers due to a limitation in the XHR library
-      // do not count this as any sort of request or we risk double-counting
-
-
-      if (simpleSegment.requestId !== this.pendingSegment_.requestId) {
-        return;
-      } // an error occurred from the active pendingSegment_ so reset everything
-
-
-      if (error) {
-        this.pendingSegment_ = null;
-        this.state = 'READY'; // aborts are not a true error condition and nothing corrective needs to be done
-
-        if (error.code === REQUEST_ERRORS.ABORTED) {
-          return;
-        }
-
-        this.pause(); // the error is really just that at least one of the requests timed-out
-        // set the bandwidth to a very low value and trigger an ABR switch to
-        // take emergency action
-
-        if (error.code === REQUEST_ERRORS.TIMEOUT) {
-          this.handleTimeout_();
-          return;
-        } // if control-flow has arrived here, then the error is real
-        // emit an error event to blacklist the current playlist
-
-
-        this.mediaRequestsErrored += 1;
-        this.error(error);
-        this.trigger('error');
-        return;
-      }
-
-      var segmentInfo = this.pendingSegment_; // the response was a success so set any bandwidth stats the request
-      // generated for ABR purposes
-
-      this.saveBandwidthRelatedStats_(segmentInfo.duration, simpleSegment.stats);
-      segmentInfo.endOfAllRequests = simpleSegment.endOfAllRequests;
-
-      if (result.gopInfo) {
-        this.gopBuffer_ = updateGopBuffer(this.gopBuffer_, result.gopInfo, this.safeAppend_);
-      } // Although we may have already started appending on progress, we shouldn't switch the
-      // state away from loading until we are officially done loading the segment data.
-
-
-      this.state = 'APPENDING'; // used for testing
-
-      this.trigger('appending');
-      this.waitForAppendsToComplete_(segmentInfo);
-    };
-
-    _proto.setTimeMapping_ = function setTimeMapping_(timeline) {
-      var timelineMapping = this.syncController_.mappingForTimeline(timeline);
-
-      if (timelineMapping !== null) {
-        this.timeMapping_ = timelineMapping;
-      }
-    };
-
-    _proto.updateMediaSecondsLoaded_ = function updateMediaSecondsLoaded_(segment) {
-      if (typeof segment.start === 'number' && typeof segment.end === 'number') {
-        this.mediaSecondsLoaded += segment.end - segment.start;
-      } else {
-        this.mediaSecondsLoaded += segment.duration;
-      }
-    };
-
-    _proto.shouldUpdateTransmuxerTimestampOffset_ = function shouldUpdateTransmuxerTimestampOffset_(timestampOffset) {
-      if (timestampOffset === null) {
-        return false;
-      } // note that we're potentially using the same timestamp offset for both video and
-      // audio
-
-
-      if (this.loaderType_ === 'main' && timestampOffset !== this.sourceUpdater_.videoTimestampOffset()) {
-        return true;
-      }
-
-      if (!this.audioDisabled_ && timestampOffset !== this.sourceUpdater_.audioTimestampOffset()) {
-        return true;
-      }
-
-      return false;
-    };
-
-    _proto.trueSegmentStart_ = function trueSegmentStart_(_ref9) {
-      var currentStart = _ref9.currentStart,
-          playlist = _ref9.playlist,
-          mediaIndex = _ref9.mediaIndex,
-          firstVideoFrameTimeForData = _ref9.firstVideoFrameTimeForData,
-          currentVideoTimestampOffset = _ref9.currentVideoTimestampOffset,
-          useVideoTimingInfo = _ref9.useVideoTimingInfo,
-          videoTimingInfo = _ref9.videoTimingInfo,
-          audioTimingInfo = _ref9.audioTimingInfo;
-
-      if (typeof currentStart !== 'undefined') {
-        // if start was set once, keep using it
-        return currentStart;
-      }
-
-      if (!useVideoTimingInfo) {
-        return audioTimingInfo.start;
-      }
-
-      var previousSegment = playlist.segments[mediaIndex - 1]; // The start of a segment should be the start of the first full frame contained
-      // within that segment. Since the transmuxer maintains a cache of incomplete data
-      // from and/or the last frame seen, the start time may reflect a frame that starts
-      // in the previous segment. Check for that case and ensure the start time is
-      // accurate for the segment.
-
-      if (mediaIndex === 0 || !previousSegment || typeof previousSegment.start === 'undefined' || previousSegment.end !== firstVideoFrameTimeForData + currentVideoTimestampOffset) {
-        return firstVideoFrameTimeForData;
-      }
-
-      return videoTimingInfo.start;
-    };
-
-    _proto.waitForAppendsToComplete_ = function waitForAppendsToComplete_(segmentInfo) {
-      var trackInfo = this.getCurrentMediaInfo_(segmentInfo);
-
-      if (!trackInfo) {
-        this.error({
-          message: 'No starting media returned, likely due to an unsupported media format.',
-          blacklistDuration: Infinity
-        });
-        this.trigger('error');
-        return;
-      } // Although transmuxing is done, appends may not yet be finished. Throw a marker
-      // on each queue this loader is responsible for to ensure that the appends are
-      // complete.
-
-
-      var hasAudio = trackInfo.hasAudio,
-          hasVideo = trackInfo.hasVideo,
-          isMuxed = trackInfo.isMuxed;
-      var waitForVideo = this.loaderType_ === 'main' && hasVideo;
-      var waitForAudio = !this.audioDisabled_ && hasAudio && !isMuxed;
-      segmentInfo.waitingOnAppends = 0; // segments with no data
-
-      if (!segmentInfo.hasAppendedData_) {
-        if (!segmentInfo.timingInfo && typeof segmentInfo.timestampOffset === 'number') {
-          // When there's no audio or video data in the segment, there's no audio or video
-          // timing information.
-          //
-          // If there's no audio or video timing information, then the timestamp offset
-          // can't be adjusted to the appropriate value for the transmuxer and source
-          // buffers.
-          //
-          // Therefore, the next segment should be used to set the timestamp offset.
-          this.isPendingTimestampOffset_ = true;
-        } // override settings for metadata only segments
-
-
-        segmentInfo.timingInfo = {
-          start: 0
-        };
-        segmentInfo.waitingOnAppends++;
-
-        if (!this.isPendingTimestampOffset_) {
-          // update the timestampoffset
-          this.updateSourceBufferTimestampOffset_(segmentInfo); // make sure the metadata queue is processed even though we have
-          // no video/audio data.
-
-          this.processMetadataQueue_();
-        } // append is "done" instantly with no data.
-
-
-        this.checkAppendsDone_(segmentInfo);
-        return;
-      } // Since source updater could call back synchronously, do the increments first.
-
-
-      if (waitForVideo) {
-        segmentInfo.waitingOnAppends++;
-      }
-
-      if (waitForAudio) {
-        segmentInfo.waitingOnAppends++;
-      }
-
-      if (waitForVideo) {
-        this.sourceUpdater_.videoQueueCallback(this.checkAppendsDone_.bind(this, segmentInfo));
-      }
-
-      if (waitForAudio) {
-        this.sourceUpdater_.audioQueueCallback(this.checkAppendsDone_.bind(this, segmentInfo));
-      }
-    };
-
-    _proto.checkAppendsDone_ = function checkAppendsDone_(segmentInfo) {
-      if (this.checkForAbort_(segmentInfo.requestId)) {
-        return;
-      }
-
-      segmentInfo.waitingOnAppends--;
-
-      if (segmentInfo.waitingOnAppends === 0) {
-        this.handleAppendsDone_();
-      }
-    };
-
-    _proto.checkForIllegalMediaSwitch = function checkForIllegalMediaSwitch(trackInfo) {
-      var illegalMediaSwitchError = illegalMediaSwitch(this.loaderType_, this.getCurrentMediaInfo_(), trackInfo);
-
-      if (illegalMediaSwitchError) {
-        this.error({
-          message: illegalMediaSwitchError,
-          blacklistDuration: Infinity
-        });
-        this.trigger('error');
-        return true;
-      }
-
-      return false;
-    };
-
-    _proto.updateSourceBufferTimestampOffset_ = function updateSourceBufferTimestampOffset_(segmentInfo) {
-      if (segmentInfo.timestampOffset === null || // we don't yet have the start for whatever media type (video or audio) has
-      // priority, timing-wise, so we must wait
-      typeof segmentInfo.timingInfo.start !== 'number' || // already updated the timestamp offset for this segment
-      segmentInfo.changedTimestampOffset || // the alt audio loader should not be responsible for setting the timestamp offset
-      this.loaderType_ !== 'main') {
-        return;
-      }
-
-      var didChange = false; // Primary timing goes by video, and audio is trimmed in the transmuxer, meaning that
-      // the timing info here comes from video. In the event that the audio is longer than
-      // the video, this will trim the start of the audio.
-      // This also trims any offset from 0 at the beginning of the media
-
-      segmentInfo.timestampOffset -= this.getSegmentStartTimeForTimestampOffsetCalculation_({
-        videoTimingInfo: segmentInfo.segment.videoTimingInfo,
-        audioTimingInfo: segmentInfo.segment.audioTimingInfo,
-        timingInfo: segmentInfo.timingInfo
-      }); // In the event that there are part segment downloads, each will try to update the
-      // timestamp offset. Retaining this bit of state prevents us from updating in the
-      // future (within the same segment), however, there may be a better way to handle it.
-
-      segmentInfo.changedTimestampOffset = true;
-
-      if (segmentInfo.timestampOffset !== this.sourceUpdater_.videoTimestampOffset()) {
-        this.sourceUpdater_.videoTimestampOffset(segmentInfo.timestampOffset);
-        didChange = true;
-      }
-
-      if (segmentInfo.timestampOffset !== this.sourceUpdater_.audioTimestampOffset()) {
-        this.sourceUpdater_.audioTimestampOffset(segmentInfo.timestampOffset);
-        didChange = true;
-      }
-
-      if (didChange) {
-        this.trigger('timestampoffset');
-      }
-    };
-
-    _proto.getSegmentStartTimeForTimestampOffsetCalculation_ = function getSegmentStartTimeForTimestampOffsetCalculation_(_ref10) {
-      var videoTimingInfo = _ref10.videoTimingInfo,
-          audioTimingInfo = _ref10.audioTimingInfo,
-          timingInfo = _ref10.timingInfo;
-
-      if (!this.useDtsForTimestampOffset_) {
-        return timingInfo.start;
-      }
-
-      if (videoTimingInfo && typeof videoTimingInfo.transmuxedDecodeStart === 'number') {
-        return videoTimingInfo.transmuxedDecodeStart;
-      } // handle audio only
-
-
-      if (audioTimingInfo && typeof audioTimingInfo.transmuxedDecodeStart === 'number') {
-        return audioTimingInfo.transmuxedDecodeStart;
-      } // handle content not transmuxed (e.g., MP4)
-
-
-      return timingInfo.start;
-    };
-
-    _proto.updateTimingInfoEnd_ = function updateTimingInfoEnd_(segmentInfo) {
-      segmentInfo.timingInfo = segmentInfo.timingInfo || {};
-      var trackInfo = this.getMediaInfo_();
-      var useVideoTimingInfo = this.loaderType_ === 'main' && trackInfo && trackInfo.hasVideo;
-      var prioritizedTimingInfo = useVideoTimingInfo && segmentInfo.videoTimingInfo ? segmentInfo.videoTimingInfo : segmentInfo.audioTimingInfo;
-
-      if (!prioritizedTimingInfo) {
-        return;
-      }
-
-      segmentInfo.timingInfo.end = typeof prioritizedTimingInfo.end === 'number' ? // End time may not exist in a case where we aren't parsing the full segment (one
-      // current example is the case of fmp4), so use the rough duration to calculate an
-      // end time.
-      prioritizedTimingInfo.end : prioritizedTimingInfo.start + segmentInfo.duration;
-    }
-    /**
-     * callback to run when appendBuffer is finished. detects if we are
-     * in a good state to do things with the data we got, or if we need
-     * to wait for more
-     *
-     * @private
-     */
-    ;
-
-    _proto.handleAppendsDone_ = function handleAppendsDone_() {
-      // appendsdone can cause an abort
-      if (this.pendingSegment_) {
-        this.trigger('appendsdone');
-      }
-
-      if (!this.pendingSegment_) {
-        this.state = 'READY'; // TODO should this move into this.checkForAbort to speed up requests post abort in
-        // all appending cases?
-
-        if (!this.paused()) {
-          this.monitorBuffer_();
-        }
-
-        return;
-      }
-
-      var segmentInfo = this.pendingSegment_; // Now that the end of the segment has been reached, we can set the end time. It's
-      // best to wait until all appends are done so we're sure that the primary media is
-      // finished (and we have its end time).
-
-      this.updateTimingInfoEnd_(segmentInfo);
-
-      if (this.shouldSaveSegmentTimingInfo_) {
-        // Timeline mappings should only be saved for the main loader. This is for multiple
-        // reasons:
-        //
-        // 1) Only one mapping is saved per timeline, meaning that if both the audio loader
-        //    and the main loader try to save the timeline mapping, whichever comes later
-        //    will overwrite the first. In theory this is OK, as the mappings should be the
-        //    same, however, it breaks for (2)
-        // 2) In the event of a live stream, the initial live point will make for a somewhat
-        //    arbitrary mapping. If audio and video streams are not perfectly in-sync, then
-        //    the mapping will be off for one of the streams, dependent on which one was
-        //    first saved (see (1)).
-        // 3) Primary timing goes by video in VHS, so the mapping should be video.
-        //
-        // Since the audio loader will wait for the main loader to load the first segment,
-        // the main loader will save the first timeline mapping, and ensure that there won't
-        // be a case where audio loads two segments without saving a mapping (thus leading
-        // to missing segment timing info).
-        this.syncController_.saveSegmentTimingInfo({
-          segmentInfo: segmentInfo,
-          shouldSaveTimelineMapping: this.loaderType_ === 'main'
-        });
-      }
-
-      var segmentDurationMessage = getTroublesomeSegmentDurationMessage(segmentInfo, this.sourceType_);
-
-      if (segmentDurationMessage) {
-        if (segmentDurationMessage.severity === 'warn') {
-          videojs.log.warn(segmentDurationMessage.message);
-        } else {
-          this.logger_(segmentDurationMessage.message);
-        }
-      }
-
-      this.recordThroughput_(segmentInfo);
-      this.pendingSegment_ = null;
-      this.state = 'READY';
-
-      if (segmentInfo.isSyncRequest) {
-        this.trigger('syncinfoupdate'); // if the sync request was not appended
-        // then it was not the correct segment.
-        // throw it away and use the data it gave us
-        // to get the correct one.
-
-        if (!segmentInfo.hasAppendedData_) {
-          this.logger_("Throwing away un-appended sync request " + segmentInfoString(segmentInfo));
-          return;
-        }
-      }
-
-      this.logger_("Appended " + segmentInfoString(segmentInfo));
-      this.addSegmentMetadataCue_(segmentInfo);
-      this.fetchAtBuffer_ = true;
-
-      if (this.currentTimeline_ !== segmentInfo.timeline) {
-        this.timelineChangeController_.lastTimelineChange({
-          type: this.loaderType_,
-          from: this.currentTimeline_,
-          to: segmentInfo.timeline
-        }); // If audio is not disabled, the main segment loader is responsible for updating
-        // the audio timeline as well. If the content is video only, this won't have any
-        // impact.
-
-        if (this.loaderType_ === 'main' && !this.audioDisabled_) {
-          this.timelineChangeController_.lastTimelineChange({
-            type: 'audio',
-            from: this.currentTimeline_,
-            to: segmentInfo.timeline
-          });
-        }
-      }
-
-      this.currentTimeline_ = segmentInfo.timeline; // We must update the syncinfo to recalculate the seekable range before
-      // the following conditional otherwise it may consider this a bad "guess"
-      // and attempt to resync when the post-update seekable window and live
-      // point would mean that this was the perfect segment to fetch
-
-      this.trigger('syncinfoupdate');
-      var segment = segmentInfo.segment;
-      var part = segmentInfo.part;
-      var badSegmentGuess = segment.end && this.currentTime_() - segment.end > segmentInfo.playlist.targetDuration * 3;
-      var badPartGuess = part && part.end && this.currentTime_() - part.end > segmentInfo.playlist.partTargetDuration * 3; // If we previously appended a segment/part that ends more than 3 part/targetDurations before
-      // the currentTime_ that means that our conservative guess was too conservative.
-      // In that case, reset the loader state so that we try to use any information gained
-      // from the previous request to create a new, more accurate, sync-point.
-
-      if (badSegmentGuess || badPartGuess) {
-        this.logger_("bad " + (badSegmentGuess ? 'segment' : 'part') + " " + segmentInfoString(segmentInfo));
-        this.resetEverything();
-        return;
-      }
-
-      var isWalkingForward = this.mediaIndex !== null; // Don't do a rendition switch unless we have enough time to get a sync segment
-      // and conservatively guess
-
-      if (isWalkingForward) {
-        this.trigger('bandwidthupdate');
-      }
-
-      this.trigger('progress');
-      this.mediaIndex = segmentInfo.mediaIndex;
-      this.partIndex = segmentInfo.partIndex; // any time an update finishes and the last segment is in the
-      // buffer, end the stream. this ensures the "ended" event will
-      // fire if playback reaches that point.
-
-      if (this.isEndOfStream_(segmentInfo.mediaIndex, segmentInfo.playlist, segmentInfo.partIndex)) {
-        this.endOfStream();
-      } // used for testing
-
-
-      this.trigger('appended');
-
-      if (segmentInfo.hasAppendedData_) {
-        this.mediaAppends++;
-      }
-
-      if (!this.paused()) {
-        this.monitorBuffer_();
-      }
-    }
-    /**
-     * Records the current throughput of the decrypt, transmux, and append
-     * portion of the semgment pipeline. `throughput.rate` is a the cumulative
-     * moving average of the throughput. `throughput.count` is the number of
-     * data points in the average.
-     *
-     * @private
-     * @param {Object} segmentInfo the object returned by loadSegment
-     */
-    ;
-
-    _proto.recordThroughput_ = function recordThroughput_(segmentInfo) {
-      if (segmentInfo.duration < MIN_SEGMENT_DURATION_TO_SAVE_STATS) {
-        this.logger_("Ignoring segment's throughput because its duration of " + segmentInfo.duration + (" is less than the min to record " + MIN_SEGMENT_DURATION_TO_SAVE_STATS));
-        return;
-      }
-
-      var rate = this.throughput.rate; // Add one to the time to ensure that we don't accidentally attempt to divide
-      // by zero in the case where the throughput is ridiculously high
-
-      var segmentProcessingTime = Date.now() - segmentInfo.endOfAllRequests + 1; // Multiply by 8000 to convert from bytes/millisecond to bits/second
-
-      var segmentProcessingThroughput = Math.floor(segmentInfo.byteLength / segmentProcessingTime * 8 * 1000); // This is just a cumulative moving average calculation:
-      //   newAvg = oldAvg + (sample - oldAvg) / (sampleCount + 1)
-
-      this.throughput.rate += (segmentProcessingThroughput - rate) / ++this.throughput.count;
-    }
-    /**
-     * Adds a cue to the segment-metadata track with some metadata information about the
-     * segment
-     *
-     * @private
-     * @param {Object} segmentInfo
-     *        the object returned by loadSegment
-     * @method addSegmentMetadataCue_
-     */
-    ;
-
-    _proto.addSegmentMetadataCue_ = function addSegmentMetadataCue_(segmentInfo) {
-      if (!this.segmentMetadataTrack_) {
-        return;
-      }
-
-      var segment = segmentInfo.segment;
-      var start = segment.start;
-      var end = segment.end; // Do not try adding the cue if the start and end times are invalid.
-
-      if (!finite(start) || !finite(end)) {
-        return;
-      }
-
-      removeCuesFromTrack(start, end, this.segmentMetadataTrack_);
-      var Cue = window.WebKitDataCue || window.VTTCue;
-      var value = {
-        custom: segment.custom,
-        dateTimeObject: segment.dateTimeObject,
-        dateTimeString: segment.dateTimeString,
-        bandwidth: segmentInfo.playlist.attributes.BANDWIDTH,
-        resolution: segmentInfo.playlist.attributes.RESOLUTION,
-        codecs: segmentInfo.playlist.attributes.CODECS,
-        byteLength: segmentInfo.byteLength,
-        uri: segmentInfo.uri,
-        timeline: segmentInfo.timeline,
-        playlist: segmentInfo.playlist.id,
-        start: start,
-        end: end
-      };
-      var data = JSON.stringify(value);
-      var cue = new Cue(start, end, data); // Attach the metadata to the value property of the cue to keep consistency between
-      // the differences of WebKitDataCue in safari and VTTCue in other browsers
-
-      cue.value = value;
-      this.segmentMetadataTrack_.addCue(cue);
-    };
-
-    return SegmentLoader;
-  }(videojs.EventTarget);
-
-  function noop() {}
-
-  var toTitleCase = function toTitleCase(string) {
-    if (typeof string !== 'string') {
-      return string;
-    }
-
-    return string.replace(/./, function (w) {
-      return w.toUpperCase();
-    });
-  };
-
-  var bufferTypes = ['video', 'audio'];
-
-  var _updating = function updating(type, sourceUpdater) {
-    var sourceBuffer = sourceUpdater[type + "Buffer"];
-    return sourceBuffer && sourceBuffer.updating || sourceUpdater.queuePending[type];
-  };
-
-  var nextQueueIndexOfType = function nextQueueIndexOfType(type, queue) {
-    for (var i = 0; i < queue.length; i++) {
-      var queueEntry = queue[i];
-
-      if (queueEntry.type === 'mediaSource') {
-        // If the next entry is a media source entry (uses multiple source buffers), block
-        // processing to allow it to go through first.
-        return null;
-      }
-
-      if (queueEntry.type === type) {
-        return i;
-      }
-    }
-
-    return null;
-  };
-
-  var shiftQueue = function shiftQueue(type, sourceUpdater) {
-    if (sourceUpdater.queue.length === 0) {
-      return;
-    }
-
-    var queueIndex = 0;
-    var queueEntry = sourceUpdater.queue[queueIndex];
-
-    if (queueEntry.type === 'mediaSource') {
-      if (!sourceUpdater.updating() && sourceUpdater.mediaSource.readyState !== 'closed') {
-        sourceUpdater.queue.shift();
-        queueEntry.action(sourceUpdater);
-
-        if (queueEntry.doneFn) {
-          queueEntry.doneFn();
-        } // Only specific source buffer actions must wait for async updateend events. Media
-        // Source actions process synchronously. Therefore, both audio and video source
-        // buffers are now clear to process the next queue entries.
-
-
-        shiftQueue('audio', sourceUpdater);
-        shiftQueue('video', sourceUpdater);
-      } // Media Source actions require both source buffers, so if the media source action
-      // couldn't process yet (because one or both source buffers are busy), block other
-      // queue actions until both are available and the media source action can process.
-
-
-      return;
-    }
-
-    if (type === 'mediaSource') {
-      // If the queue was shifted by a media source action (this happens when pushing a
-      // media source action onto the queue), then it wasn't from an updateend event from an
-      // audio or video source buffer, so there's no change from previous state, and no
-      // processing should be done.
-      return;
-    } // Media source queue entries don't need to consider whether the source updater is
-    // started (i.e., source buffers are created) as they don't need the source buffers, but
-    // source buffer queue entries do.
-
-
-    if (!sourceUpdater.ready() || sourceUpdater.mediaSource.readyState === 'closed' || _updating(type, sourceUpdater)) {
-      return;
-    }
-
-    if (queueEntry.type !== type) {
-      queueIndex = nextQueueIndexOfType(type, sourceUpdater.queue);
-
-      if (queueIndex === null) {
-        // Either there's no queue entry that uses this source buffer type in the queue, or
-        // there's a media source queue entry before the next entry of this type, in which
-        // case wait for that action to process first.
-        return;
-      }
-
-      queueEntry = sourceUpdater.queue[queueIndex];
-    }
-
-    sourceUpdater.queue.splice(queueIndex, 1); // Keep a record that this source buffer type is in use.
-    //
-    // The queue pending operation must be set before the action is performed in the event
-    // that the action results in a synchronous event that is acted upon. For instance, if
-    // an exception is thrown that can be handled, it's possible that new actions will be
-    // appended to an empty queue and immediately executed, but would not have the correct
-    // pending information if this property was set after the action was performed.
-
-    sourceUpdater.queuePending[type] = queueEntry;
-    queueEntry.action(type, sourceUpdater);
-
-    if (!queueEntry.doneFn) {
-      // synchronous operation, process next entry
-      sourceUpdater.queuePending[type] = null;
-      shiftQueue(type, sourceUpdater);
-      return;
-    }
-  };
-
-  var cleanupBuffer = function cleanupBuffer(type, sourceUpdater) {
-    var buffer = sourceUpdater[type + "Buffer"];
-    var titleType = toTitleCase(type);
-
-    if (!buffer) {
-      return;
-    }
-
-    buffer.removeEventListener('updateend', sourceUpdater["on" + titleType + "UpdateEnd_"]);
-    buffer.removeEventListener('error', sourceUpdater["on" + titleType + "Error_"]);
-    sourceUpdater.codecs[type] = null;
-    sourceUpdater[type + "Buffer"] = null;
-  };
-
-  var inSourceBuffers = function inSourceBuffers(mediaSource, sourceBuffer) {
-    return mediaSource && sourceBuffer && Array.prototype.indexOf.call(mediaSource.sourceBuffers, sourceBuffer) !== -1;
-  };
-
-  var actions = {
-    appendBuffer: function appendBuffer(bytes, segmentInfo, onError) {
-      return function (type, sourceUpdater) {
-        var sourceBuffer = sourceUpdater[type + "Buffer"]; // can't do anything if the media source / source buffer is null
-        // or the media source does not contain this source buffer.
-
-        if (!inSourceBuffers(sourceUpdater.mediaSource, sourceBuffer)) {
-          return;
-        }
-
-        sourceUpdater.logger_("Appending segment " + segmentInfo.mediaIndex + "'s " + bytes.length + " bytes to " + type + "Buffer");
-
-        try {
-          sourceBuffer.appendBuffer(bytes);
-        } catch (e) {
-          sourceUpdater.logger_("Error with code " + e.code + " " + (e.code === QUOTA_EXCEEDED_ERR ? '(QUOTA_EXCEEDED_ERR) ' : '') + ("when appending segment " + segmentInfo.mediaIndex + " to " + type + "Buffer"));
-          sourceUpdater.queuePending[type] = null;
-          onError(e);
-        }
-      };
-    },
-    remove: function remove(start, end) {
-      return function (type, sourceUpdater) {
-        var sourceBuffer = sourceUpdater[type + "Buffer"]; // can't do anything if the media source / source buffer is null
-        // or the media source does not contain this source buffer.
-
-        if (!inSourceBuffers(sourceUpdater.mediaSource, sourceBuffer)) {
-          return;
-        }
-
-        sourceUpdater.logger_("Removing " + start + " to " + end + " from " + type + "Buffer");
-
-        try {
-          sourceBuffer.remove(start, end);
-        } catch (e) {
-          sourceUpdater.logger_("Remove " + start + " to " + end + " from " + type + "Buffer failed");
-        }
-      };
-    },
-    timestampOffset: function timestampOffset(offset) {
-      return function (type, sourceUpdater) {
-        var sourceBuffer = sourceUpdater[type + "Buffer"]; // can't do anything if the media source / source buffer is null
-        // or the media source does not contain this source buffer.
-
-        if (!inSourceBuffers(sourceUpdater.mediaSource, sourceBuffer)) {
-          return;
-        }
-
-        sourceUpdater.logger_("Setting " + type + "timestampOffset to " + offset);
-        sourceBuffer.timestampOffset = offset;
-      };
-    },
-    callback: function callback(_callback) {
-      return function (type, sourceUpdater) {
-        _callback();
-      };
-    },
-    endOfStream: function endOfStream(error) {
-      return function (sourceUpdater) {
-        if (sourceUpdater.mediaSource.readyState !== 'open') {
-          return;
-        }
-
-        sourceUpdater.logger_("Calling mediaSource endOfStream(" + (error || '') + ")");
-
-        try {
-          sourceUpdater.mediaSource.endOfStream(error);
-        } catch (e) {
-          videojs.log.warn('Failed to call media source endOfStream', e);
-        }
-      };
-    },
-    duration: function duration(_duration) {
-      return function (sourceUpdater) {
-        sourceUpdater.logger_("Setting mediaSource duration to " + _duration);
-
-        try {
-          sourceUpdater.mediaSource.duration = _duration;
-        } catch (e) {
-          videojs.log.warn('Failed to set media source duration', e);
-        }
-      };
-    },
-    abort: function abort() {
-      return function (type, sourceUpdater) {
-        if (sourceUpdater.mediaSource.readyState !== 'open') {
-          return;
-        }
-
-        var sourceBuffer = sourceUpdater[type + "Buffer"]; // can't do anything if the media source / source buffer is null
-        // or the media source does not contain this source buffer.
-
-        if (!inSourceBuffers(sourceUpdater.mediaSource, sourceBuffer)) {
-          return;
-        }
-
-        sourceUpdater.logger_("calling abort on " + type + "Buffer");
-
-        try {
-          sourceBuffer.abort();
-        } catch (e) {
-          videojs.log.warn("Failed to abort on " + type + "Buffer", e);
-        }
-      };
-    },
-    addSourceBuffer: function addSourceBuffer(type, codec) {
-      return function (sourceUpdater) {
-        var titleType = toTitleCase(type);
-        var mime = getMimeForCodec(codec);
-        sourceUpdater.logger_("Adding " + type + "Buffer with codec " + codec + " to mediaSource");
-        var sourceBuffer = sourceUpdater.mediaSource.addSourceBuffer(mime);
-        sourceBuffer.addEventListener('updateend', sourceUpdater["on" + titleType + "UpdateEnd_"]);
-        sourceBuffer.addEventListener('error', sourceUpdater["on" + titleType + "Error_"]);
-        sourceUpdater.codecs[type] = codec;
-        sourceUpdater[type + "Buffer"] = sourceBuffer;
-      };
-    },
-    removeSourceBuffer: function removeSourceBuffer(type) {
-      return function (sourceUpdater) {
-        var sourceBuffer = sourceUpdater[type + "Buffer"];
-        cleanupBuffer(type, sourceUpdater); // can't do anything if the media source / source buffer is null
-        // or the media source does not contain this source buffer.
-
-        if (!inSourceBuffers(sourceUpdater.mediaSource, sourceBuffer)) {
-          return;
-        }
-
-        sourceUpdater.logger_("Removing " + type + "Buffer with codec " + sourceUpdater.codecs[type] + " from mediaSource");
-
-        try {
-          sourceUpdater.mediaSource.removeSourceBuffer(sourceBuffer);
-        } catch (e) {
-          videojs.log.warn("Failed to removeSourceBuffer " + type + "Buffer", e);
-        }
-      };
-    },
-    changeType: function changeType(codec) {
-      return function (type, sourceUpdater) {
-        var sourceBuffer = sourceUpdater[type + "Buffer"];
-        var mime = getMimeForCodec(codec); // can't do anything if the media source / source buffer is null
-        // or the media source does not contain this source buffer.
-
-        if (!inSourceBuffers(sourceUpdater.mediaSource, sourceBuffer)) {
-          return;
-        } // do not update codec if we don't need to.
-
-
-        if (sourceUpdater.codecs[type] === codec) {
-          return;
-        }
-
-        sourceUpdater.logger_("changing " + type + "Buffer codec from " + sourceUpdater.codecs[type] + " to " + codec);
-        sourceBuffer.changeType(mime);
-        sourceUpdater.codecs[type] = codec;
-      };
-    }
-  };
-
-  var pushQueue = function pushQueue(_ref) {
-    var type = _ref.type,
-        sourceUpdater = _ref.sourceUpdater,
-        action = _ref.action,
-        doneFn = _ref.doneFn,
-        name = _ref.name;
-    sourceUpdater.queue.push({
-      type: type,
-      action: action,
-      doneFn: doneFn,
-      name: name
-    });
-    shiftQueue(type, sourceUpdater);
-  };
-
-  var onUpdateend = function onUpdateend(type, sourceUpdater) {
-    return function (e) {
-      // Although there should, in theory, be a pending action for any updateend receieved,
-      // there are some actions that may trigger updateend events without set definitions in
-      // the w3c spec. For instance, setting the duration on the media source may trigger
-      // updateend events on source buffers. This does not appear to be in the spec. As such,
-      // if we encounter an updateend without a corresponding pending action from our queue
-      // for that source buffer type, process the next action.
-      if (sourceUpdater.queuePending[type]) {
-        var doneFn = sourceUpdater.queuePending[type].doneFn;
-        sourceUpdater.queuePending[type] = null;
-
-        if (doneFn) {
-          // if there's an error, report it
-          doneFn(sourceUpdater[type + "Error_"]);
-        }
-      }
-
-      shiftQueue(type, sourceUpdater);
-    };
-  };
-  /**
-   * A queue of callbacks to be serialized and applied when a
-   * MediaSource and its associated SourceBuffers are not in the
-   * updating state. It is used by the segment loader to update the
-   * underlying SourceBuffers when new data is loaded, for instance.
-   *
-   * @class SourceUpdater
-   * @param {MediaSource} mediaSource the MediaSource to create the SourceBuffer from
-   * @param {string} mimeType the desired MIME type of the underlying SourceBuffer
-   */
-
-
-  var SourceUpdater = /*#__PURE__*/function (_videojs$EventTarget) {
-    inheritsLoose(SourceUpdater, _videojs$EventTarget);
-
-    function SourceUpdater(mediaSource) {
-      var _this;
-
-      _this = _videojs$EventTarget.call(this) || this;
-      _this.mediaSource = mediaSource;
-
-      _this.sourceopenListener_ = function () {
-        return shiftQueue('mediaSource', assertThisInitialized(_this));
-      };
-
-      _this.mediaSource.addEventListener('sourceopen', _this.sourceopenListener_);
-
-      _this.logger_ = logger('SourceUpdater'); // initial timestamp offset is 0
-
-      _this.audioTimestampOffset_ = 0;
-      _this.videoTimestampOffset_ = 0;
-      _this.queue = [];
-      _this.queuePending = {
-        audio: null,
-        video: null
-      };
-      _this.delayedAudioAppendQueue_ = [];
-      _this.videoAppendQueued_ = false;
-      _this.codecs = {};
-      _this.onVideoUpdateEnd_ = onUpdateend('video', assertThisInitialized(_this));
-      _this.onAudioUpdateEnd_ = onUpdateend('audio', assertThisInitialized(_this));
-
-      _this.onVideoError_ = function (e) {
-        // used for debugging
-        _this.videoError_ = e;
-      };
-
-      _this.onAudioError_ = function (e) {
-        // used for debugging
-        _this.audioError_ = e;
-      };
-
-      _this.createdSourceBuffers_ = false;
-      _this.initializedEme_ = false;
-      _this.triggeredReady_ = false;
-      return _this;
-    }
-
-    var _proto = SourceUpdater.prototype;
-
-    _proto.initializedEme = function initializedEme() {
-      this.initializedEme_ = true;
-      this.triggerReady();
-    };
-
-    _proto.hasCreatedSourceBuffers = function hasCreatedSourceBuffers() {
-      // if false, likely waiting on one of the segment loaders to get enough data to create
-      // source buffers
-      return this.createdSourceBuffers_;
-    };
-
-    _proto.hasInitializedAnyEme = function hasInitializedAnyEme() {
-      return this.initializedEme_;
-    };
-
-    _proto.ready = function ready() {
-      return this.hasCreatedSourceBuffers() && this.hasInitializedAnyEme();
-    };
-
-    _proto.createSourceBuffers = function createSourceBuffers(codecs) {
-      if (this.hasCreatedSourceBuffers()) {
-        // already created them before
-        return;
-      } // the intial addOrChangeSourceBuffers will always be
-      // two add buffers.
-
-
-      this.addOrChangeSourceBuffers(codecs);
-      this.createdSourceBuffers_ = true;
-      this.trigger('createdsourcebuffers');
-      this.triggerReady();
-    };
-
-    _proto.triggerReady = function triggerReady() {
-      // only allow ready to be triggered once, this prevents the case
-      // where:
-      // 1. we trigger createdsourcebuffers
-      // 2. ie 11 synchronously initializates eme
-      // 3. the synchronous initialization causes us to trigger ready
-      // 4. We go back to the ready check in createSourceBuffers and ready is triggered again.
-      if (this.ready() && !this.triggeredReady_) {
-        this.triggeredReady_ = true;
-        this.trigger('ready');
-      }
-    }
-    /**
-     * Add a type of source buffer to the media source.
-     *
-     * @param {string} type
-     *        The type of source buffer to add.
-     *
-     * @param {string} codec
-     *        The codec to add the source buffer with.
-     */
-    ;
-
-    _proto.addSourceBuffer = function addSourceBuffer(type, codec) {
-      pushQueue({
-        type: 'mediaSource',
-        sourceUpdater: this,
-        action: actions.addSourceBuffer(type, codec),
-        name: 'addSourceBuffer'
-      });
-    }
-    /**
-     * call abort on a source buffer.
-     *
-     * @param {string} type
-     *        The type of source buffer to call abort on.
-     */
-    ;
-
-    _proto.abort = function abort(type) {
-      pushQueue({
-        type: type,
-        sourceUpdater: this,
-        action: actions.abort(type),
-        name: 'abort'
-      });
-    }
-    /**
-     * Call removeSourceBuffer and remove a specific type
-     * of source buffer on the mediaSource.
-     *
-     * @param {string} type
-     *        The type of source buffer to remove.
-     */
-    ;
-
-    _proto.removeSourceBuffer = function removeSourceBuffer(type) {
-      if (!this.canRemoveSourceBuffer()) {
-        videojs.log.error('removeSourceBuffer is not supported!');
-        return;
-      }
-
-      pushQueue({
-        type: 'mediaSource',
-        sourceUpdater: this,
-        action: actions.removeSourceBuffer(type),
-        name: 'removeSourceBuffer'
-      });
-    }
-    /**
-     * Whether or not the removeSourceBuffer function is supported
-     * on the mediaSource.
-     *
-     * @return {boolean}
-     *          if removeSourceBuffer can be called.
-     */
-    ;
-
-    _proto.canRemoveSourceBuffer = function canRemoveSourceBuffer() {
-      // IE reports that it supports removeSourceBuffer, but often throws
-      // errors when attempting to use the function. So we report that it
-      // does not support removeSourceBuffer. As of Firefox 83 removeSourceBuffer
-      // throws errors, so we report that it does not support this as well.
-      return !videojs.browser.IE_VERSION && !videojs.browser.IS_FIREFOX && window.MediaSource && window.MediaSource.prototype && typeof window.MediaSource.prototype.removeSourceBuffer === 'function';
-    }
-    /**
-     * Whether or not the changeType function is supported
-     * on our SourceBuffers.
-     *
-     * @return {boolean}
-     *         if changeType can be called.
-     */
-    ;
-
-    SourceUpdater.canChangeType = function canChangeType() {
-      return window.SourceBuffer && window.SourceBuffer.prototype && typeof window.SourceBuffer.prototype.changeType === 'function';
-    }
-    /**
-     * Whether or not the changeType function is supported
-     * on our SourceBuffers.
-     *
-     * @return {boolean}
-     *         if changeType can be called.
-     */
-    ;
-
-    _proto.canChangeType = function canChangeType() {
-      return this.constructor.canChangeType();
-    }
-    /**
-     * Call the changeType function on a source buffer, given the code and type.
-     *
-     * @param {string} type
-     *        The type of source buffer to call changeType on.
-     *
-     * @param {string} codec
-     *        The codec string to change type with on the source buffer.
-     */
-    ;
-
-    _proto.changeType = function changeType(type, codec) {
-      if (!this.canChangeType()) {
-        videojs.log.error('changeType is not supported!');
-        return;
-      }
-
-      pushQueue({
-        type: type,
-        sourceUpdater: this,
-        action: actions.changeType(codec),
-        name: 'changeType'
-      });
-    }
-    /**
-     * Add source buffers with a codec or, if they are already created,
-     * call changeType on source buffers using changeType.
-     *
-     * @param {Object} codecs
-     *        Codecs to switch to
-     */
-    ;
-
-    _proto.addOrChangeSourceBuffers = function addOrChangeSourceBuffers(codecs) {
-      var _this2 = this;
-
-      if (!codecs || typeof codecs !== 'object' || Object.keys(codecs).length === 0) {
-        throw new Error('Cannot addOrChangeSourceBuffers to undefined codecs');
-      }
-
-      Object.keys(codecs).forEach(function (type) {
-        var codec = codecs[type];
-
-        if (!_this2.hasCreatedSourceBuffers()) {
-          return _this2.addSourceBuffer(type, codec);
-        }
-
-        if (_this2.canChangeType()) {
-          _this2.changeType(type, codec);
-        }
-      });
-    }
-    /**
-     * Queue an update to append an ArrayBuffer.
-     *
-     * @param {MediaObject} object containing audioBytes and/or videoBytes
-     * @param {Function} done the function to call when done
-     * @see http://www.w3.org/TR/media-source/#widl-SourceBuffer-appendBuffer-void-ArrayBuffer-data
-     */
-    ;
-
-    _proto.appendBuffer = function appendBuffer(options, doneFn) {
-      var _this3 = this;
-
-      var segmentInfo = options.segmentInfo,
-          type = options.type,
-          bytes = options.bytes;
-      this.processedAppend_ = true;
-
-      if (type === 'audio' && this.videoBuffer && !this.videoAppendQueued_) {
-        this.delayedAudioAppendQueue_.push([options, doneFn]);
-        this.logger_("delayed audio append of " + bytes.length + " until video append");
-        return;
-      } // In the case of certain errors, for instance, QUOTA_EXCEEDED_ERR, updateend will
-      // not be fired. This means that the queue will be blocked until the next action
-      // taken by the segment-loader. Provide a mechanism for segment-loader to handle
-      // these errors by calling the doneFn with the specific error.
-
-
-      var onError = doneFn;
-      pushQueue({
-        type: type,
-        sourceUpdater: this,
-        action: actions.appendBuffer(bytes, segmentInfo || {
-          mediaIndex: -1
-        }, onError),
-        doneFn: doneFn,
-        name: 'appendBuffer'
-      });
-
-      if (type === 'video') {
-        this.videoAppendQueued_ = true;
-
-        if (!this.delayedAudioAppendQueue_.length) {
-          return;
-        }
-
-        var queue = this.delayedAudioAppendQueue_.slice();
-        this.logger_("queuing delayed audio " + queue.length + " appendBuffers");
-        this.delayedAudioAppendQueue_.length = 0;
-        queue.forEach(function (que) {
-          _this3.appendBuffer.apply(_this3, que);
-        });
-      }
-    }
-    /**
-     * Get the audio buffer's buffered timerange.
-     *
-     * @return {TimeRange}
-     *         The audio buffer's buffered time range
-     */
-    ;
-
-    _proto.audioBuffered = function audioBuffered() {
-      // no media source/source buffer or it isn't in the media sources
-      // source buffer list
-      if (!inSourceBuffers(this.mediaSource, this.audioBuffer)) {
-        return videojs.createTimeRange();
-      }
-
-      return this.audioBuffer.buffered ? this.audioBuffer.buffered : videojs.createTimeRange();
-    }
-    /**
-     * Get the video buffer's buffered timerange.
-     *
-     * @return {TimeRange}
-     *         The video buffer's buffered time range
-     */
-    ;
-
-    _proto.videoBuffered = function videoBuffered() {
-      // no media source/source buffer or it isn't in the media sources
-      // source buffer list
-      if (!inSourceBuffers(this.mediaSource, this.videoBuffer)) {
-        return videojs.createTimeRange();
-      }
-
-      return this.videoBuffer.buffered ? this.videoBuffer.buffered : videojs.createTimeRange();
-    }
-    /**
-     * Get a combined video/audio buffer's buffered timerange.
-     *
-     * @return {TimeRange}
-     *         the combined time range
-     */
-    ;
-
-    _proto.buffered = function buffered() {
-      var video = inSourceBuffers(this.mediaSource, this.videoBuffer) ? this.videoBuffer : null;
-      var audio = inSourceBuffers(this.mediaSource, this.audioBuffer) ? this.audioBuffer : null;
-
-      if (audio && !video) {
-        return this.audioBuffered();
-      }
-
-      if (video && !audio) {
-        return this.videoBuffered();
-      }
-
-      return bufferIntersection(this.audioBuffered(), this.videoBuffered());
-    }
-    /**
-     * Add a callback to the queue that will set duration on the mediaSource.
-     *
-     * @param {number} duration
-     *        The duration to set
-     *
-     * @param {Function} [doneFn]
-     *        function to run after duration has been set.
-     */
-    ;
-
-    _proto.setDuration = function setDuration(duration, doneFn) {
-      if (doneFn === void 0) {
-        doneFn = noop;
-      } // In order to set the duration on the media source, it's necessary to wait for all
-      // source buffers to no longer be updating. "If the updating attribute equals true on
-      // any SourceBuffer in sourceBuffers, then throw an InvalidStateError exception and
-      // abort these steps." (source: https://www.w3.org/TR/media-source/#attributes).
-
-
-      pushQueue({
-        type: 'mediaSource',
-        sourceUpdater: this,
-        action: actions.duration(duration),
-        name: 'duration',
-        doneFn: doneFn
-      });
-    }
-    /**
-     * Add a mediaSource endOfStream call to the queue
-     *
-     * @param {Error} [error]
-     *        Call endOfStream with an error
-     *
-     * @param {Function} [doneFn]
-     *        A function that should be called when the
-     *        endOfStream call has finished.
-     */
-    ;
-
-    _proto.endOfStream = function endOfStream(error, doneFn) {
-      if (error === void 0) {
-        error = null;
-      }
-
-      if (doneFn === void 0) {
-        doneFn = noop;
-      }
-
-      if (typeof error !== 'string') {
-        error = undefined;
-      } // In order to set the duration on the media source, it's necessary to wait for all
-      // source buffers to no longer be updating. "If the updating attribute equals true on
-      // any SourceBuffer in sourceBuffers, then throw an InvalidStateError exception and
-      // abort these steps." (source: https://www.w3.org/TR/media-source/#attributes).
-
-
-      pushQueue({
-        type: 'mediaSource',
-        sourceUpdater: this,
-        action: actions.endOfStream(error),
-        name: 'endOfStream',
-        doneFn: doneFn
-      });
-    }
-    /**
-     * Queue an update to remove a time range from the buffer.
-     *
-     * @param {number} start where to start the removal
-     * @param {number} end where to end the removal
-     * @param {Function} [done=noop] optional callback to be executed when the remove
-     * operation is complete
-     * @see http://www.w3.org/TR/media-source/#widl-SourceBuffer-remove-void-double-start-unrestricted-double-end
-     */
-    ;
-
-    _proto.removeAudio = function removeAudio(start, end, done) {
-      if (done === void 0) {
-        done = noop;
-      }
-
-      if (!this.audioBuffered().length || this.audioBuffered().end(0) === 0) {
-        done();
-        return;
-      }
-
-      pushQueue({
-        type: 'audio',
-        sourceUpdater: this,
-        action: actions.remove(start, end),
-        doneFn: done,
-        name: 'remove'
-      });
-    }
-    /**
-     * Queue an update to remove a time range from the buffer.
-     *
-     * @param {number} start where to start the removal
-     * @param {number} end where to end the removal
-     * @param {Function} [done=noop] optional callback to be executed when the remove
-     * operation is complete
-     * @see http://www.w3.org/TR/media-source/#widl-SourceBuffer-remove-void-double-start-unrestricted-double-end
-     */
-    ;
-
-    _proto.removeVideo = function removeVideo(start, end, done) {
-      if (done === void 0) {
-        done = noop;
-      }
-
-      if (!this.videoBuffered().length || this.videoBuffered().end(0) === 0) {
-        done();
-        return;
-      }
-
-      pushQueue({
-        type: 'video',
-        sourceUpdater: this,
-        action: actions.remove(start, end),
-        doneFn: done,
-        name: 'remove'
-      });
-    }
-    /**
-     * Whether the underlying sourceBuffer is updating or not
-     *
-     * @return {boolean} the updating status of the SourceBuffer
-     */
-    ;
-
-    _proto.updating = function updating() {
-      // the audio/video source buffer is updating
-      if (_updating('audio', this) || _updating('video', this)) {
-        return true;
-      }
-
-      return false;
-    }
-    /**
-     * Set/get the timestampoffset on the audio SourceBuffer
-     *
-     * @return {number} the timestamp offset
-     */
-    ;
-
-    _proto.audioTimestampOffset = function audioTimestampOffset(offset) {
-      if (typeof offset !== 'undefined' && this.audioBuffer && // no point in updating if it's the same
-      this.audioTimestampOffset_ !== offset) {
-        pushQueue({
-          type: 'audio',
-          sourceUpdater: this,
-          action: actions.timestampOffset(offset),
-          name: 'timestampOffset'
-        });
-        this.audioTimestampOffset_ = offset;
-      }
-
-      return this.audioTimestampOffset_;
-    }
-    /**
-     * Set/get the timestampoffset on the video SourceBuffer
-     *
-     * @return {number} the timestamp offset
-     */
-    ;
-
-    _proto.videoTimestampOffset = function videoTimestampOffset(offset) {
-      if (typeof offset !== 'undefined' && this.videoBuffer && // no point in updating if it's the same
-      this.videoTimestampOffset !== offset) {
-        pushQueue({
-          type: 'video',
-          sourceUpdater: this,
-          action: actions.timestampOffset(offset),
-          name: 'timestampOffset'
-        });
-        this.videoTimestampOffset_ = offset;
-      }
-
-      return this.videoTimestampOffset_;
-    }
-    /**
-     * Add a function to the queue that will be called
-     * when it is its turn to run in the audio queue.
-     *
-     * @param {Function} callback
-     *        The callback to queue.
-     */
-    ;
-
-    _proto.audioQueueCallback = function audioQueueCallback(callback) {
-      if (!this.audioBuffer) {
-        return;
-      }
-
-      pushQueue({
-        type: 'audio',
-        sourceUpdater: this,
-        action: actions.callback(callback),
-        name: 'callback'
-      });
-    }
-    /**
-     * Add a function to the queue that will be called
-     * when it is its turn to run in the video queue.
-     *
-     * @param {Function} callback
-     *        The callback to queue.
-     */
-    ;
-
-    _proto.videoQueueCallback = function videoQueueCallback(callback) {
-      if (!this.videoBuffer) {
-        return;
-      }
-
-      pushQueue({
-        type: 'video',
-        sourceUpdater: this,
-        action: actions.callback(callback),
-        name: 'callback'
-      });
-    }
-    /**
-     * dispose of the source updater and the underlying sourceBuffer
-     */
-    ;
-
-    _proto.dispose = function dispose() {
-      var _this4 = this;
-
-      this.trigger('dispose');
-      bufferTypes.forEach(function (type) {
-        _this4.abort(type);
-
-        if (_this4.canRemoveSourceBuffer()) {
-          _this4.removeSourceBuffer(type);
-        } else {
-          _this4[type + "QueueCallback"](function () {
-            return cleanupBuffer(type, _this4);
-          });
-        }
-      });
-      this.videoAppendQueued_ = false;
-      this.delayedAudioAppendQueue_.length = 0;
-
-      if (this.sourceopenListener_) {
-        this.mediaSource.removeEventListener('sourceopen', this.sourceopenListener_);
-      }
-
-      this.off();
-    };
-
-    return SourceUpdater;
-  }(videojs.EventTarget);
-
-  var uint8ToUtf8 = function uint8ToUtf8(uintArray) {
-    return decodeURIComponent(escape(String.fromCharCode.apply(null, uintArray)));
-  };
-
-  var VTT_LINE_TERMINATORS = new Uint8Array('\n\n'.split('').map(function (_char3) {
-    return _char3.charCodeAt(0);
-  }));
-  /**
-   * An object that manages segment loading and appending.
-   *
-   * @class VTTSegmentLoader
-   * @param {Object} options required and optional options
-   * @extends videojs.EventTarget
-   */
-
-  var VTTSegmentLoader = /*#__PURE__*/function (_SegmentLoader) {
-    inheritsLoose(VTTSegmentLoader, _SegmentLoader);
-
-    function VTTSegmentLoader(settings, options) {
-      var _this;
-
-      if (options === void 0) {
-        options = {};
-      }
-
-      _this = _SegmentLoader.call(this, settings, options) || this; // SegmentLoader requires a MediaSource be specified or it will throw an error;
-      // however, VTTSegmentLoader has no need of a media source, so delete the reference
-
-      _this.mediaSource_ = null;
-      _this.subtitlesTrack_ = null;
-      _this.loaderType_ = 'subtitle';
-      _this.featuresNativeTextTracks_ = settings.featuresNativeTextTracks; // The VTT segment will have its own time mappings. Saving VTT segment timing info in
-      // the sync controller leads to improper behavior.
-
-      _this.shouldSaveSegmentTimingInfo_ = false;
-      return _this;
-    }
-
-    var _proto = VTTSegmentLoader.prototype;
-
-    _proto.createTransmuxer_ = function createTransmuxer_() {
-      // don't need to transmux any subtitles
-      return null;
-    }
-    /**
-     * Indicates which time ranges are buffered
-     *
-     * @return {TimeRange}
-     *         TimeRange object representing the current buffered ranges
-     */
-    ;
-
-    _proto.buffered_ = function buffered_() {
-      if (!this.subtitlesTrack_ || !this.subtitlesTrack_.cues || !this.subtitlesTrack_.cues.length) {
-        return videojs.createTimeRanges();
-      }
-
-      var cues = this.subtitlesTrack_.cues;
-      var start = cues[0].startTime;
-      var end = cues[cues.length - 1].startTime;
-      return videojs.createTimeRanges([[start, end]]);
-    }
-    /**
-     * Gets and sets init segment for the provided map
-     *
-     * @param {Object} map
-     *        The map object representing the init segment to get or set
-     * @param {boolean=} set
-     *        If true, the init segment for the provided map should be saved
-     * @return {Object}
-     *         map object for desired init segment
-     */
-    ;
-
-    _proto.initSegmentForMap = function initSegmentForMap(map, set) {
-      if (set === void 0) {
-        set = false;
-      }
-
-      if (!map) {
-        return null;
-      }
-
-      var id = initSegmentId(map);
-      var storedMap = this.initSegments_[id];
-
-      if (set && !storedMap && map.bytes) {
-        // append WebVTT line terminators to the media initialization segment if it exists
-        // to follow the WebVTT spec (https://w3c.github.io/webvtt/#file-structure) that
-        // requires two or more WebVTT line terminators between the WebVTT header and the
-        // rest of the file
-        var combinedByteLength = VTT_LINE_TERMINATORS.byteLength + map.bytes.byteLength;
-        var combinedSegment = new Uint8Array(combinedByteLength);
-        combinedSegment.set(map.bytes);
-        combinedSegment.set(VTT_LINE_TERMINATORS, map.bytes.byteLength);
-        this.initSegments_[id] = storedMap = {
-          resolvedUri: map.resolvedUri,
-          byterange: map.byterange,
-          bytes: combinedSegment
-        };
-      }
-
-      return storedMap || map;
-    }
-    /**
-     * Returns true if all configuration required for loading is present, otherwise false.
-     *
-     * @return {boolean} True if the all configuration is ready for loading
-     * @private
-     */
-    ;
-
-    _proto.couldBeginLoading_ = function couldBeginLoading_() {
-      return this.playlist_ && this.subtitlesTrack_ && !this.paused();
-    }
-    /**
-     * Once all the starting parameters have been specified, begin
-     * operation. This method should only be invoked from the INIT
-     * state.
-     *
-     * @private
-     */
-    ;
-
-    _proto.init_ = function init_() {
-      this.state = 'READY';
-      this.resetEverything();
-      return this.monitorBuffer_();
-    }
-    /**
-     * Set a subtitle track on the segment loader to add subtitles to
-     *
-     * @param {TextTrack=} track
-     *        The text track to add loaded subtitles to
-     * @return {TextTrack}
-     *        Returns the subtitles track
-     */
-    ;
-
-    _proto.track = function track(_track) {
-      if (typeof _track === 'undefined') {
-        return this.subtitlesTrack_;
-      }
-
-      this.subtitlesTrack_ = _track; // if we were unpaused but waiting for a sourceUpdater, start
-      // buffering now
-
-      if (this.state === 'INIT' && this.couldBeginLoading_()) {
-        this.init_();
-      }
-
-      return this.subtitlesTrack_;
-    }
-    /**
-     * Remove any data in the source buffer between start and end times
-     *
-     * @param {number} start - the start time of the region to remove from the buffer
-     * @param {number} end - the end time of the region to remove from the buffer
-     */
-    ;
-
-    _proto.remove = function remove(start, end) {
-      removeCuesFromTrack(start, end, this.subtitlesTrack_);
-    }
-    /**
-     * fill the buffer with segements unless the sourceBuffers are
-     * currently updating
-     *
-     * Note: this function should only ever be called by monitorBuffer_
-     * and never directly
-     *
-     * @private
-     */
-    ;
-
-    _proto.fillBuffer_ = function fillBuffer_() {
-      var _this2 = this; // see if we need to begin loading immediately
-
-
-      var segmentInfo = this.chooseNextRequest_();
-
-      if (!segmentInfo) {
-        return;
-      }
-
-      if (this.syncController_.timestampOffsetForTimeline(segmentInfo.timeline) === null) {
-        // We don't have the timestamp offset that we need to sync subtitles.
-        // Rerun on a timestamp offset or user interaction.
-        var checkTimestampOffset = function checkTimestampOffset() {
-          _this2.state = 'READY';
-
-          if (!_this2.paused()) {
-            // if not paused, queue a buffer check as soon as possible
-            _this2.monitorBuffer_();
-          }
-        };
-
-        this.syncController_.one('timestampoffset', checkTimestampOffset);
-        this.state = 'WAITING_ON_TIMELINE';
-        return;
-      }
-
-      this.loadSegment_(segmentInfo);
-    } // never set a timestamp offset for vtt segments.
-    ;
-
-    _proto.timestampOffsetForSegment_ = function timestampOffsetForSegment_() {
-      return null;
-    };
-
-    _proto.chooseNextRequest_ = function chooseNextRequest_() {
-      return this.skipEmptySegments_(_SegmentLoader.prototype.chooseNextRequest_.call(this));
-    }
-    /**
-     * Prevents the segment loader from requesting segments we know contain no subtitles
-     * by walking forward until we find the next segment that we don't know whether it is
-     * empty or not.
-     *
-     * @param {Object} segmentInfo
-     *        a segment info object that describes the current segment
-     * @return {Object}
-     *         a segment info object that describes the current segment
-     */
-    ;
-
-    _proto.skipEmptySegments_ = function skipEmptySegments_(segmentInfo) {
-      while (segmentInfo && segmentInfo.segment.empty) {
-        // stop at the last possible segmentInfo
-        if (segmentInfo.mediaIndex + 1 >= segmentInfo.playlist.segments.length) {
-          segmentInfo = null;
-          break;
-        }
-
-        segmentInfo = this.generateSegmentInfo_({
-          playlist: segmentInfo.playlist,
-          mediaIndex: segmentInfo.mediaIndex + 1,
-          startOfSegment: segmentInfo.startOfSegment + segmentInfo.duration,
-          isSyncRequest: segmentInfo.isSyncRequest
-        });
-      }
-
-      return segmentInfo;
-    };
-
-    _proto.stopForError = function stopForError(error) {
-      this.error(error);
-      this.state = 'READY';
-      this.pause();
-      this.trigger('error');
-    }
-    /**
-     * append a decrypted segement to the SourceBuffer through a SourceUpdater
-     *
-     * @private
-     */
-    ;
-
-    _proto.segmentRequestFinished_ = function segmentRequestFinished_(error, simpleSegment, result) {
-      var _this3 = this;
-
-      if (!this.subtitlesTrack_) {
-        this.state = 'READY';
-        return;
-      }
-
-      this.saveTransferStats_(simpleSegment.stats); // the request was aborted
-
-      if (!this.pendingSegment_) {
-        this.state = 'READY';
-        this.mediaRequestsAborted += 1;
-        return;
-      }
-
-      if (error) {
-        if (error.code === REQUEST_ERRORS.TIMEOUT) {
-          this.handleTimeout_();
-        }
-
-        if (error.code === REQUEST_ERRORS.ABORTED) {
-          this.mediaRequestsAborted += 1;
-        } else {
-          this.mediaRequestsErrored += 1;
-        }
-
-        this.stopForError(error);
-        return;
-      }
-
-      var segmentInfo = this.pendingSegment_; // although the VTT segment loader bandwidth isn't really used, it's good to
-      // maintain functionality between segment loaders
-
-      this.saveBandwidthRelatedStats_(segmentInfo.duration, simpleSegment.stats); // if this request included a segment key, save that data in the cache
-
-      if (simpleSegment.key) {
-        this.segmentKey(simpleSegment.key, true);
-      }
-
-      this.state = 'APPENDING'; // used for tests
-
-      this.trigger('appending');
-      var segment = segmentInfo.segment;
-
-      if (segment.map) {
-        segment.map.bytes = simpleSegment.map.bytes;
-      }
-
-      segmentInfo.bytes = simpleSegment.bytes; // Make sure that vttjs has loaded, otherwise, wait till it finished loading
-
-      if (typeof window.WebVTT !== 'function' && this.subtitlesTrack_ && this.subtitlesTrack_.tech_) {
-        var loadHandler;
-
-        var errorHandler = function errorHandler() {
-          _this3.subtitlesTrack_.tech_.off('vttjsloaded', loadHandler);
-
-          _this3.stopForError({
-            message: 'Error loading vtt.js'
-          });
-
-          return;
-        };
-
-        loadHandler = function loadHandler() {
-          _this3.subtitlesTrack_.tech_.off('vttjserror', errorHandler);
-
-          _this3.segmentRequestFinished_(error, simpleSegment, result);
-        };
-
-        this.state = 'WAITING_ON_VTTJS';
-        this.subtitlesTrack_.tech_.one('vttjsloaded', loadHandler);
-        this.subtitlesTrack_.tech_.one('vttjserror', errorHandler);
-        return;
-      }
-
-      segment.requested = true;
-
-      try {
-        this.parseVTTCues_(segmentInfo);
-      } catch (e) {
-        this.stopForError({
-          message: e.message
-        });
-        return;
-      }
-
-      this.updateTimeMapping_(segmentInfo, this.syncController_.timelines[segmentInfo.timeline], this.playlist_);
-
-      if (segmentInfo.cues.length) {
-        segmentInfo.timingInfo = {
-          start: segmentInfo.cues[0].startTime,
-          end: segmentInfo.cues[segmentInfo.cues.length - 1].endTime
-        };
-      } else {
-        segmentInfo.timingInfo = {
-          start: segmentInfo.startOfSegment,
-          end: segmentInfo.startOfSegment + segmentInfo.duration
-        };
-      }
-
-      if (segmentInfo.isSyncRequest) {
-        this.trigger('syncinfoupdate');
-        this.pendingSegment_ = null;
-        this.state = 'READY';
-        return;
-      }
-
-      segmentInfo.byteLength = segmentInfo.bytes.byteLength;
-      this.mediaSecondsLoaded += segment.duration; // Create VTTCue instances for each cue in the new segment and add them to
-      // the subtitle track
-
-      segmentInfo.cues.forEach(function (cue) {
-        _this3.subtitlesTrack_.addCue(_this3.featuresNativeTextTracks_ ? new window.VTTCue(cue.startTime, cue.endTime, cue.text) : cue);
-      }); // Remove any duplicate cues from the subtitle track. The WebVTT spec allows
-      // cues to have identical time-intervals, but if the text is also identical
-      // we can safely assume it is a duplicate that can be removed (ex. when a cue
-      // "overlaps" VTT segments)
-
-      removeDuplicateCuesFromTrack(this.subtitlesTrack_);
-      this.handleAppendsDone_();
-    };
-
-    _proto.handleData_ = function handleData_() {// noop as we shouldn't be getting video/audio data captions
-      // that we do not support here.
-    };
-
-    _proto.updateTimingInfoEnd_ = function updateTimingInfoEnd_() {// noop
-    }
-    /**
-     * Uses the WebVTT parser to parse the segment response
-     *
-     * @param {Object} segmentInfo
-     *        a segment info object that describes the current segment
-     * @private
-     */
-    ;
-
-    _proto.parseVTTCues_ = function parseVTTCues_(segmentInfo) {
-      var decoder;
-      var decodeBytesToString = false;
-
-      if (typeof window.TextDecoder === 'function') {
-        decoder = new window.TextDecoder('utf8');
-      } else {
-        decoder = window.WebVTT.StringDecoder();
-        decodeBytesToString = true;
-      }
-
-      var parser = new window.WebVTT.Parser(window, window.vttjs, decoder);
-      segmentInfo.cues = [];
-      segmentInfo.timestampmap = {
-        MPEGTS: 0,
-        LOCAL: 0
-      };
-      parser.oncue = segmentInfo.cues.push.bind(segmentInfo.cues);
-
-      parser.ontimestampmap = function (map) {
-        segmentInfo.timestampmap = map;
-      };
-
-      parser.onparsingerror = function (error) {
-        videojs.log.warn('Error encountered when parsing cues: ' + error.message);
-      };
-
-      if (segmentInfo.segment.map) {
-        var mapData = segmentInfo.segment.map.bytes;
-
-        if (decodeBytesToString) {
-          mapData = uint8ToUtf8(mapData);
-        }
-
-        parser.parse(mapData);
-      }
-
-      var segmentData = segmentInfo.bytes;
-
-      if (decodeBytesToString) {
-        segmentData = uint8ToUtf8(segmentData);
-      }
-
-      parser.parse(segmentData);
-      parser.flush();
-    }
-    /**
-     * Updates the start and end times of any cues parsed by the WebVTT parser using
-     * the information parsed from the X-TIMESTAMP-MAP header and a TS to media time mapping
-     * from the SyncController
-     *
-     * @param {Object} segmentInfo
-     *        a segment info object that describes the current segment
-     * @param {Object} mappingObj
-     *        object containing a mapping from TS to media time
+     * @param {string} attr
+     *        Attribute to check for
      * @param {Object} playlist
-     *        the playlist object containing the segment
-     * @private
-     */
-    ;
-
-    _proto.updateTimeMapping_ = function updateTimeMapping_(segmentInfo, mappingObj, playlist) {
-      var segment = segmentInfo.segment;
-
-      if (!mappingObj) {
-        // If the sync controller does not have a mapping of TS to Media Time for the
-        // timeline, then we don't have enough information to update the cue
-        // start/end times
-        return;
-      }
-
-      if (!segmentInfo.cues.length) {
-        // If there are no cues, we also do not have enough information to figure out
-        // segment timing. Mark that the segment contains no cues so we don't re-request
-        // an empty segment.
-        segment.empty = true;
-        return;
-      }
-
-      var timestampmap = segmentInfo.timestampmap;
-      var diff = timestampmap.MPEGTS / clock_1 - timestampmap.LOCAL + mappingObj.mapping;
-      segmentInfo.cues.forEach(function (cue) {
-        // First convert cue time to TS time using the timestamp-map provided within the vtt
-        cue.startTime += diff;
-        cue.endTime += diff;
-      });
-
-      if (!playlist.syncInfo) {
-        var firstStart = segmentInfo.cues[0].startTime;
-        var lastStart = segmentInfo.cues[segmentInfo.cues.length - 1].startTime;
-        playlist.syncInfo = {
-          mediaSequence: playlist.mediaSequence + segmentInfo.mediaIndex,
-          time: Math.min(firstStart, lastStart - segment.duration)
-        };
-      }
-    };
-
-    return VTTSegmentLoader;
-  }(SegmentLoader);
-  /**
-   * @file ad-cue-tags.js
-   */
-
-  /**
-   * Searches for an ad cue that overlaps with the given mediaTime
-   *
-   * @param {Object} track
-   *        the track to find the cue for
-   *
-   * @param {number} mediaTime
-   *        the time to find the cue at
-   *
-   * @return {Object|null}
-   *         the found cue or null
-   */
-
-
-  var findAdCue = function findAdCue(track, mediaTime) {
-    var cues = track.cues;
-
-    for (var i = 0; i < cues.length; i++) {
-      var cue = cues[i];
-
-      if (mediaTime >= cue.adStartTime && mediaTime <= cue.adEndTime) {
-        return cue;
-      }
-    }
-
-    return null;
-  };
-
-  var updateAdCues = function updateAdCues(media, track, offset) {
-    if (offset === void 0) {
-      offset = 0;
-    }
-
-    if (!media.segments) {
-      return;
-    }
-
-    var mediaTime = offset;
-    var cue;
-
-    for (var i = 0; i < media.segments.length; i++) {
-      var segment = media.segments[i];
-
-      if (!cue) {
-        // Since the cues will span for at least the segment duration, adding a fudge
-        // factor of half segment duration will prevent duplicate cues from being
-        // created when timing info is not exact (e.g. cue start time initialized
-        // at 10.006677, but next call mediaTime is 10.003332 )
-        cue = findAdCue(track, mediaTime + segment.duration / 2);
-      }
-
-      if (cue) {
-        if ('cueIn' in segment) {
-          // Found a CUE-IN so end the cue
-          cue.endTime = mediaTime;
-          cue.adEndTime = mediaTime;
-          mediaTime += segment.duration;
-          cue = null;
-          continue;
-        }
-
-        if (mediaTime < cue.endTime) {
-          // Already processed this mediaTime for this cue
-          mediaTime += segment.duration;
-          continue;
-        } // otherwise extend cue until a CUE-IN is found
-
-
-        cue.endTime += segment.duration;
-      } else {
-        if ('cueOut' in segment) {
-          cue = new window.VTTCue(mediaTime, mediaTime + segment.duration, segment.cueOut);
-          cue.adStartTime = mediaTime; // Assumes tag format to be
-          // #EXT-X-CUE-OUT:30
-
-          cue.adEndTime = mediaTime + parseFloat(segment.cueOut);
-          track.addCue(cue);
-        }
-
-        if ('cueOutCont' in segment) {
-          // Entered into the middle of an ad cue
-          // Assumes tag formate to be
-          // #EXT-X-CUE-OUT-CONT:10/30
-          var _segment$cueOutCont$s = segment.cueOutCont.split('/').map(parseFloat),
-              adOffset = _segment$cueOutCont$s[0],
-              adTotal = _segment$cueOutCont$s[1];
-
-          cue = new window.VTTCue(mediaTime, mediaTime + segment.duration, '');
-          cue.adStartTime = mediaTime - adOffset;
-          cue.adEndTime = cue.adStartTime + adTotal;
-          track.addCue(cue);
-        }
-      }
-
-      mediaTime += segment.duration;
-    }
-  }; // synchronize expired playlist segments.
-  // the max media sequence diff is 48 hours of live stream
-  // content with two second segments. Anything larger than that
-  // will likely be invalid.
-
-
-  var MAX_MEDIA_SEQUENCE_DIFF_FOR_SYNC = 86400;
-  var syncPointStrategies = [// Stategy "VOD": Handle the VOD-case where the sync-point is *always*
-  //                the equivalence display-time 0 === segment-index 0
-  {
-    name: 'VOD',
-    run: function run(syncController, playlist, duration, currentTimeline, currentTime) {
-      if (duration !== Infinity) {
-        var syncPoint = {
-          time: 0,
-          segmentIndex: 0,
-          partIndex: null
-        };
-        return syncPoint;
-      }
-
-      return null;
-    }
-  }, // Stategy "ProgramDateTime": We have a program-date-time tag in this playlist
-  {
-    name: 'ProgramDateTime',
-    run: function run(syncController, playlist, duration, currentTimeline, currentTime) {
-      if (!Object.keys(syncController.timelineToDatetimeMappings).length) {
-        return null;
-      }
-
-      var syncPoint = null;
-      var lastDistance = null;
-      var partsAndSegments = getPartsAndSegments(playlist);
-      currentTime = currentTime || 0;
-
-      for (var i = 0; i < partsAndSegments.length; i++) {
-        // start from the end and loop backwards for live
-        // or start from the front and loop forwards for non-live
-        var index = playlist.endList || currentTime === 0 ? i : partsAndSegments.length - (i + 1);
-        var partAndSegment = partsAndSegments[index];
-        var segment = partAndSegment.segment;
-        var datetimeMapping = syncController.timelineToDatetimeMappings[segment.timeline];
-
-        if (!datetimeMapping || !segment.dateTimeObject) {
-          continue;
-        }
-
-        var segmentTime = segment.dateTimeObject.getTime() / 1000;
-        var start = segmentTime + datetimeMapping; // take part duration into account.
-
-        if (segment.parts && typeof partAndSegment.partIndex === 'number') {
-          for (var z = 0; z < partAndSegment.partIndex; z++) {
-            start += segment.parts[z].duration;
-          }
-        }
-
-        var distance = Math.abs(currentTime - start); // Once the distance begins to increase, or if distance is 0, we have passed
-        // currentTime and can stop looking for better candidates
-
-        if (lastDistance !== null && (distance === 0 || lastDistance < distance)) {
-          break;
-        }
-
-        lastDistance = distance;
-        syncPoint = {
-          time: start,
-          segmentIndex: partAndSegment.segmentIndex,
-          partIndex: partAndSegment.partIndex
-        };
-      }
-
-      return syncPoint;
-    }
-  }, // Stategy "Segment": We have a known time mapping for a timeline and a
-  //                    segment in the current timeline with timing data
-  {
-    name: 'Segment',
-    run: function run(syncController, playlist, duration, currentTimeline, currentTime) {
-      var syncPoint = null;
-      var lastDistance = null;
-      currentTime = currentTime || 0;
-      var partsAndSegments = getPartsAndSegments(playlist);
-
-      for (var i = 0; i < partsAndSegments.length; i++) {
-        // start from the end and loop backwards for live
-        // or start from the front and loop forwards for non-live
-        var index = playlist.endList || currentTime === 0 ? i : partsAndSegments.length - (i + 1);
-        var partAndSegment = partsAndSegments[index];
-        var segment = partAndSegment.segment;
-        var start = partAndSegment.part && partAndSegment.part.start || segment && segment.start;
-
-        if (segment.timeline === currentTimeline && typeof start !== 'undefined') {
-          var distance = Math.abs(currentTime - start); // Once the distance begins to increase, we have passed
-          // currentTime and can stop looking for better candidates
-
-          if (lastDistance !== null && lastDistance < distance) {
-            break;
-          }
-
-          if (!syncPoint || lastDistance === null || lastDistance >= distance) {
-            lastDistance = distance;
-            syncPoint = {
-              time: start,
-              segmentIndex: partAndSegment.segmentIndex,
-              partIndex: partAndSegment.partIndex
-            };
-          }
-        }
-      }
-
-      return syncPoint;
-    }
-  }, // Stategy "Discontinuity": We have a discontinuity with a known
-  //                          display-time
-  {
-    name: 'Discontinuity',
-    run: function run(syncController, playlist, duration, currentTimeline, currentTime) {
-      var syncPoint = null;
-      currentTime = currentTime || 0;
-
-      if (playlist.discontinuityStarts && playlist.discontinuityStarts.length) {
-        var lastDistance = null;
-
-        for (var i = 0; i < playlist.discontinuityStarts.length; i++) {
-          var segmentIndex = playlist.discontinuityStarts[i];
-          var discontinuity = playlist.discontinuitySequence + i + 1;
-          var discontinuitySync = syncController.discontinuities[discontinuity];
-
-          if (discontinuitySync) {
-            var distance = Math.abs(currentTime - discontinuitySync.time); // Once the distance begins to increase, we have passed
-            // currentTime and can stop looking for better candidates
-
-            if (lastDistance !== null && lastDistance < distance) {
-              break;
-            }
-
-            if (!syncPoint || lastDistance === null || lastDistance >= distance) {
-              lastDistance = distance;
-              syncPoint = {
-                time: discontinuitySync.time,
-                segmentIndex: segmentIndex,
-                partIndex: null
-              };
-            }
-          }
-        }
-      }
-
-      return syncPoint;
-    }
-  }, // Stategy "Playlist": We have a playlist with a known mapping of
-  //                     segment index to display time
-  {
-    name: 'Playlist',
-    run: function run(syncController, playlist, duration, currentTimeline, currentTime) {
-      if (playlist.syncInfo) {
-        var syncPoint = {
-          time: playlist.syncInfo.time,
-          segmentIndex: playlist.syncInfo.mediaSequence - playlist.mediaSequence,
-          partIndex: null
-        };
-        return syncPoint;
-      }
-
-      return null;
-    }
-  }];
-
-  var SyncController = /*#__PURE__*/function (_videojs$EventTarget) {
-    inheritsLoose(SyncController, _videojs$EventTarget);
-
-    function SyncController(options) {
-      var _this;
-
-      _this = _videojs$EventTarget.call(this) || this; // ...for synching across variants
-
-      _this.timelines = [];
-      _this.discontinuities = [];
-      _this.timelineToDatetimeMappings = {};
-      _this.logger_ = logger('SyncController');
-      return _this;
-    }
-    /**
-     * Find a sync-point for the playlist specified
-     *
-     * A sync-point is defined as a known mapping from display-time to
-     * a segment-index in the current playlist.
-     *
-     * @param {Playlist} playlist
-     *        The playlist that needs a sync-point
-     * @param {number} duration
-     *        Duration of the MediaSource (Infinite if playing a live source)
-     * @param {number} currentTimeline
-     *        The last timeline from which a segment was loaded
-     * @return {Object}
-     *          A sync-point object
-     */
-
-
-    var _proto = SyncController.prototype;
-
-    _proto.getSyncPoint = function getSyncPoint(playlist, duration, currentTimeline, currentTime) {
-      var syncPoints = this.runStrategies_(playlist, duration, currentTimeline, currentTime);
-
-      if (!syncPoints.length) {
-        // Signal that we need to attempt to get a sync-point manually
-        // by fetching a segment in the playlist and constructing
-        // a sync-point from that information
-        return null;
-      } // Now find the sync-point that is closest to the currentTime because
-      // that should result in the most accurate guess about which segment
-      // to fetch
-
-
-      return this.selectSyncPoint_(syncPoints, {
-        key: 'time',
-        value: currentTime
-      });
-    }
-    /**
-     * Calculate the amount of time that has expired off the playlist during playback
-     *
-     * @param {Playlist} playlist
-     *        Playlist object to calculate expired from
-     * @param {number} duration
-     *        Duration of the MediaSource (Infinity if playling a live source)
-     * @return {number|null}
-     *          The amount of time that has expired off the playlist during playback. Null
-     *          if no sync-points for the playlist can be found.
-     */
-    ;
-
-    _proto.getExpiredTime = function getExpiredTime(playlist, duration) {
-      if (!playlist || !playlist.segments) {
-        return null;
-      }
-
-      var syncPoints = this.runStrategies_(playlist, duration, playlist.discontinuitySequence, 0); // Without sync-points, there is not enough information to determine the expired time
-
-      if (!syncPoints.length) {
-        return null;
-      }
-
-      var syncPoint = this.selectSyncPoint_(syncPoints, {
-        key: 'segmentIndex',
-        value: 0
-      }); // If the sync-point is beyond the start of the playlist, we want to subtract the
-      // duration from index 0 to syncPoint.segmentIndex instead of adding.
-
-      if (syncPoint.segmentIndex > 0) {
-        syncPoint.time *= -1;
-      }
-
-      return Math.abs(syncPoint.time + sumDurations({
-        defaultDuration: playlist.targetDuration,
-        durationList: playlist.segments,
-        startIndex: syncPoint.segmentIndex,
-        endIndex: 0
-      }));
-    }
-    /**
-     * Runs each sync-point strategy and returns a list of sync-points returned by the
-     * strategies
-     *
-     * @private
-     * @param {Playlist} playlist
-     *        The playlist that needs a sync-point
-     * @param {number} duration
-     *        Duration of the MediaSource (Infinity if playing a live source)
-     * @param {number} currentTimeline
-     *        The last timeline from which a segment was loaded
-     * @return {Array}
-     *          A list of sync-point objects
-     */
-    ;
-
-    _proto.runStrategies_ = function runStrategies_(playlist, duration, currentTimeline, currentTime) {
-      var syncPoints = []; // Try to find a sync-point in by utilizing various strategies...
-
-      for (var i = 0; i < syncPointStrategies.length; i++) {
-        var strategy = syncPointStrategies[i];
-        var syncPoint = strategy.run(this, playlist, duration, currentTimeline, currentTime);
-
-        if (syncPoint) {
-          syncPoint.strategy = strategy.name;
-          syncPoints.push({
-            strategy: strategy.name,
-            syncPoint: syncPoint
-          });
-        }
-      }
-
-      return syncPoints;
-    }
-    /**
-     * Selects the sync-point nearest the specified target
-     *
-     * @private
-     * @param {Array} syncPoints
-     *        List of sync-points to select from
-     * @param {Object} target
-     *        Object specifying the property and value we are targeting
-     * @param {string} target.key
-     *        Specifies the property to target. Must be either 'time' or 'segmentIndex'
-     * @param {number} target.value
-     *        The value to target for the specified key.
-     * @return {Object}
-     *          The sync-point nearest the target
-     */
-    ;
-
-    _proto.selectSyncPoint_ = function selectSyncPoint_(syncPoints, target) {
-      var bestSyncPoint = syncPoints[0].syncPoint;
-      var bestDistance = Math.abs(syncPoints[0].syncPoint[target.key] - target.value);
-      var bestStrategy = syncPoints[0].strategy;
-
-      for (var i = 1; i < syncPoints.length; i++) {
-        var newDistance = Math.abs(syncPoints[i].syncPoint[target.key] - target.value);
-
-        if (newDistance < bestDistance) {
-          bestDistance = newDistance;
-          bestSyncPoint = syncPoints[i].syncPoint;
-          bestStrategy = syncPoints[i].strategy;
-        }
-      }
-
-      this.logger_("syncPoint for [" + target.key + ": " + target.value + "] chosen with strategy" + (" [" + bestStrategy + "]: [time:" + bestSyncPoint.time + ",") + (" segmentIndex:" + bestSyncPoint.segmentIndex) + (typeof bestSyncPoint.partIndex === 'number' ? ",partIndex:" + bestSyncPoint.partIndex : '') + ']');
-      return bestSyncPoint;
-    }
-    /**
-     * Save any meta-data present on the segments when segments leave
-     * the live window to the playlist to allow for synchronization at the
-     * playlist level later.
-     *
-     * @param {Playlist} oldPlaylist - The previous active playlist
-     * @param {Playlist} newPlaylist - The updated and most current playlist
-     */
-    ;
-
-    _proto.saveExpiredSegmentInfo = function saveExpiredSegmentInfo(oldPlaylist, newPlaylist) {
-      var mediaSequenceDiff = newPlaylist.mediaSequence - oldPlaylist.mediaSequence; // Ignore large media sequence gaps
-
-      if (mediaSequenceDiff > MAX_MEDIA_SEQUENCE_DIFF_FOR_SYNC) {
-        videojs.log.warn("Not saving expired segment info. Media sequence gap " + mediaSequenceDiff + " is too large.");
-        return;
-      } // When a segment expires from the playlist and it has a start time
-      // save that information as a possible sync-point reference in future
-
-
-      for (var i = mediaSequenceDiff - 1; i >= 0; i--) {
-        var lastRemovedSegment = oldPlaylist.segments[i];
-
-        if (lastRemovedSegment && typeof lastRemovedSegment.start !== 'undefined') {
-          newPlaylist.syncInfo = {
-            mediaSequence: oldPlaylist.mediaSequence + i,
-            time: lastRemovedSegment.start
-          };
-          this.logger_("playlist refresh sync: [time:" + newPlaylist.syncInfo.time + "," + (" mediaSequence: " + newPlaylist.syncInfo.mediaSequence + "]"));
-          this.trigger('syncinfoupdate');
-          break;
-        }
-      }
-    }
-    /**
-     * Save the mapping from playlist's ProgramDateTime to display. This should only happen
-     * before segments start to load.
-     *
-     * @param {Playlist} playlist - The currently active playlist
-     */
-    ;
-
-    _proto.setDateTimeMappingForStart = function setDateTimeMappingForStart(playlist) {
-      // It's possible for the playlist to be updated before playback starts, meaning time
-      // zero is not yet set. If, during these playlist refreshes, a discontinuity is
-      // crossed, then the old time zero mapping (for the prior timeline) would be retained
-      // unless the mappings are cleared.
-      this.timelineToDatetimeMappings = {};
-
-      if (playlist.segments && playlist.segments.length && playlist.segments[0].dateTimeObject) {
-        var firstSegment = playlist.segments[0];
-        var playlistTimestamp = firstSegment.dateTimeObject.getTime() / 1000;
-        this.timelineToDatetimeMappings[firstSegment.timeline] = -playlistTimestamp;
-      }
-    }
-    /**
-     * Calculates and saves timeline mappings, playlist sync info, and segment timing values
-     * based on the latest timing information.
-     *
-     * @param {Object} options
-     *        Options object
-     * @param {SegmentInfo} options.segmentInfo
-     *        The current active request information
-     * @param {boolean} options.shouldSaveTimelineMapping
-     *        If there's a timeline change, determines if the timeline mapping should be
-     *        saved for timeline mapping and program date time mappings.
-     */
-    ;
-
-    _proto.saveSegmentTimingInfo = function saveSegmentTimingInfo(_ref) {
-      var segmentInfo = _ref.segmentInfo,
-          shouldSaveTimelineMapping = _ref.shouldSaveTimelineMapping;
-      var didCalculateSegmentTimeMapping = this.calculateSegmentTimeMapping_(segmentInfo, segmentInfo.timingInfo, shouldSaveTimelineMapping);
-      var segment = segmentInfo.segment;
-
-      if (didCalculateSegmentTimeMapping) {
-        this.saveDiscontinuitySyncInfo_(segmentInfo); // If the playlist does not have sync information yet, record that information
-        // now with segment timing information
-
-        if (!segmentInfo.playlist.syncInfo) {
-          segmentInfo.playlist.syncInfo = {
-            mediaSequence: segmentInfo.playlist.mediaSequence + segmentInfo.mediaIndex,
-            time: segment.start
-          };
-        }
-      }
-
-      var dateTime = segment.dateTimeObject;
-
-      if (segment.discontinuity && shouldSaveTimelineMapping && dateTime) {
-        this.timelineToDatetimeMappings[segment.timeline] = -(dateTime.getTime() / 1000);
-      }
-    };
-
-    _proto.timestampOffsetForTimeline = function timestampOffsetForTimeline(timeline) {
-      if (typeof this.timelines[timeline] === 'undefined') {
-        return null;
-      }
-
-      return this.timelines[timeline].time;
-    };
-
-    _proto.mappingForTimeline = function mappingForTimeline(timeline) {
-      if (typeof this.timelines[timeline] === 'undefined') {
-        return null;
-      }
-
-      return this.timelines[timeline].mapping;
-    }
-    /**
-     * Use the "media time" for a segment to generate a mapping to "display time" and
-     * save that display time to the segment.
-     *
-     * @private
-     * @param {SegmentInfo} segmentInfo
-     *        The current active request information
-     * @param {Object} timingInfo
-     *        The start and end time of the current segment in "media time"
-     * @param {boolean} shouldSaveTimelineMapping
-     *        If there's a timeline change, determines if the timeline mapping should be
-     *        saved in timelines.
+     *        The media playlist object
      * @return {boolean}
-     *          Returns false if segment time mapping could not be calculated
+     *         Whether the playlist contains a value for the attribute or not
+     * @function hasAttribute
      */
-    ;
 
-    _proto.calculateSegmentTimeMapping_ = function calculateSegmentTimeMapping_(segmentInfo, timingInfo, shouldSaveTimelineMapping) {
-      // TODO: remove side effects
-      var segment = segmentInfo.segment;
-      var part = segmentInfo.part;
-      var mappingObj = this.timelines[segmentInfo.timeline];
-      var start;
-      var end;
-
-      if (typeof segmentInfo.timestampOffset === 'number') {
-        mappingObj = {
-          time: segmentInfo.startOfSegment,
-          mapping: segmentInfo.startOfSegment - timingInfo.start
-        };
-
-        if (shouldSaveTimelineMapping) {
-          this.timelines[segmentInfo.timeline] = mappingObj;
-          this.trigger('timestampoffset');
-          this.logger_("time mapping for timeline " + segmentInfo.timeline + ": " + ("[time: " + mappingObj.time + "] [mapping: " + mappingObj.mapping + "]"));
-        }
-
-        start = segmentInfo.startOfSegment;
-        end = timingInfo.end + mappingObj.mapping;
-      } else if (mappingObj) {
-        start = timingInfo.start + mappingObj.mapping;
-        end = timingInfo.end + mappingObj.mapping;
-      } else {
-        return false;
-      }
-
-      if (part) {
-        part.start = start;
-        part.end = end;
-      } // If we don't have a segment start yet or the start value we got
-      // is less than our current segment.start value, save a new start value.
-      // We have to do this because parts will have segment timing info saved
-      // multiple times and we want segment start to be the earliest part start
-      // value for that segment.
-
-
-      if (!segment.start || start < segment.start) {
-        segment.start = start;
-      }
-
-      segment.end = end;
-      return true;
-    }
+    const hasAttribute = function (attr, playlist) {
+        return playlist.attributes && playlist.attributes[attr];
+    };
     /**
-     * Each time we have discontinuity in the playlist, attempt to calculate the location
-     * in display of the start of the discontinuity and save that. We also save an accuracy
-     * value so that we save values with the most accuracy (closest to 0.)
+     * Estimates the time required to complete a segment download from the specified playlist
      *
-     * @private
-     * @param {SegmentInfo} segmentInfo - The current active request information
+     * @param {number} segmentDuration
+     *        Duration of requested segment
+     * @param {number} bandwidth
+     *        Current measured bandwidth of the player
+     * @param {Object} playlist
+     *        The media playlist object
+     * @param {number=} bytesReceived
+     *        Number of bytes already received for the request. Defaults to 0
+     * @return {number|NaN}
+     *         The estimated time to request the segment. NaN if bandwidth information for
+     *         the given playlist is unavailable
+     * @function estimateSegmentRequestTime
      */
-    ;
 
-    _proto.saveDiscontinuitySyncInfo_ = function saveDiscontinuitySyncInfo_(segmentInfo) {
-      var playlist = segmentInfo.playlist;
-      var segment = segmentInfo.segment; // If the current segment is a discontinuity then we know exactly where
-      // the start of the range and it's accuracy is 0 (greater accuracy values
-      // mean more approximation)
-
-      if (segment.discontinuity) {
-        this.discontinuities[segment.timeline] = {
-          time: segment.start,
-          accuracy: 0
-        };
-      } else if (playlist.discontinuityStarts && playlist.discontinuityStarts.length) {
-        // Search for future discontinuities that we can provide better timing
-        // information for and save that information for sync purposes
-        for (var i = 0; i < playlist.discontinuityStarts.length; i++) {
-          var segmentIndex = playlist.discontinuityStarts[i];
-          var discontinuity = playlist.discontinuitySequence + i + 1;
-          var mediaIndexDiff = segmentIndex - segmentInfo.mediaIndex;
-          var accuracy = Math.abs(mediaIndexDiff);
-
-          if (!this.discontinuities[discontinuity] || this.discontinuities[discontinuity].accuracy > accuracy) {
-            var time = void 0;
-
-            if (mediaIndexDiff < 0) {
-              time = segment.start - sumDurations({
-                defaultDuration: playlist.targetDuration,
-                durationList: playlist.segments,
-                startIndex: segmentInfo.mediaIndex,
-                endIndex: segmentIndex
-              });
-            } else {
-              time = segment.end + sumDurations({
-                defaultDuration: playlist.targetDuration,
-                durationList: playlist.segments,
-                startIndex: segmentInfo.mediaIndex + 1,
-                endIndex: segmentIndex
-              });
-            }
-
-            this.discontinuities[discontinuity] = {
-              time: time,
-              accuracy: accuracy
-            };
-          }
+    const estimateSegmentRequestTime = function (segmentDuration, bandwidth, playlist, bytesReceived = 0) {
+        if (!hasAttribute('BANDWIDTH', playlist)) {
+            return NaN;
         }
-      }
+        const size = segmentDuration * playlist.attributes.BANDWIDTH;
+        return (size - bytesReceived * 8) / bandwidth;
     };
-
-    _proto.dispose = function dispose() {
-      this.trigger('dispose');
-      this.off();
-    };
-
-    return SyncController;
-  }(videojs.EventTarget);
-  /**
-   * The TimelineChangeController acts as a source for segment loaders to listen for and
-   * keep track of latest and pending timeline changes. This is useful to ensure proper
-   * sync, as each loader may need to make a consideration for what timeline the other
-   * loader is on before making changes which could impact the other loader's media.
+    /*
+   * Returns whether the current playlist is the lowest rendition
    *
-   * @class TimelineChangeController
-   * @extends videojs.EventTarget
+   * @return {Boolean} true if on lowest rendition
    */
 
-
-  var TimelineChangeController = /*#__PURE__*/function (_videojs$EventTarget) {
-    inheritsLoose(TimelineChangeController, _videojs$EventTarget);
-
-    function TimelineChangeController() {
-      var _this;
-
-      _this = _videojs$EventTarget.call(this) || this;
-      _this.pendingTimelineChanges_ = {};
-      _this.lastTimelineChanges_ = {};
-      return _this;
-    }
-
-    var _proto = TimelineChangeController.prototype;
-
-    _proto.clearPendingTimelineChange = function clearPendingTimelineChange(type) {
-      this.pendingTimelineChanges_[type] = null;
-      this.trigger('pendingtimelinechange');
-    };
-
-    _proto.pendingTimelineChange = function pendingTimelineChange(_ref) {
-      var type = _ref.type,
-          from = _ref.from,
-          to = _ref.to;
-
-      if (typeof from === 'number' && typeof to === 'number') {
-        this.pendingTimelineChanges_[type] = {
-          type: type,
-          from: from,
-          to: to
-        };
-        this.trigger('pendingtimelinechange');
-      }
-
-      return this.pendingTimelineChanges_[type];
-    };
-
-    _proto.lastTimelineChange = function lastTimelineChange(_ref2) {
-      var type = _ref2.type,
-          from = _ref2.from,
-          to = _ref2.to;
-
-      if (typeof from === 'number' && typeof to === 'number') {
-        this.lastTimelineChanges_[type] = {
-          type: type,
-          from: from,
-          to: to
-        };
-        delete this.pendingTimelineChanges_[type];
-        this.trigger('timelinechange');
-      }
-
-      return this.lastTimelineChanges_[type];
-    };
-
-    _proto.dispose = function dispose() {
-      this.trigger('dispose');
-      this.pendingTimelineChanges_ = {};
-      this.lastTimelineChanges_ = {};
-      this.off();
-    };
-
-    return TimelineChangeController;
-  }(videojs.EventTarget);
-  /* rollup-plugin-worker-factory start for worker!/Users/abarstow/videojs/http-streaming/src/decrypter-worker.js */
-
-
-  var workerCode = transform(getWorkerString(function () {
-    var commonjsGlobal = typeof globalThis !== 'undefined' ? globalThis : typeof window !== 'undefined' ? window : typeof global !== 'undefined' ? global : typeof self !== 'undefined' ? self : {};
-
-    function createCommonjsModule(fn, basedir, module) {
-      return module = {
-        path: basedir,
-        exports: {},
-        require: function require(path, base) {
-          return commonjsRequire(path, base === undefined || base === null ? module.path : base);
+    const isLowestEnabledRendition = (main, media) => {
+        if (main.playlists.length === 1) {
+            return true;
         }
-      }, fn(module, module.exports), module.exports;
-    }
-
-    function commonjsRequire() {
-      throw new Error('Dynamic requires are not currently supported by @rollup/plugin-commonjs');
-    }
-
-    var createClass = createCommonjsModule(function (module) {
-      function _defineProperties(target, props) {
-        for (var i = 0; i < props.length; i++) {
-          var descriptor = props[i];
-          descriptor.enumerable = descriptor.enumerable || false;
-          descriptor.configurable = true;
-          if ("value" in descriptor) descriptor.writable = true;
-          Object.defineProperty(target, descriptor.key, descriptor);
-        }
-      }
-
-      function _createClass(Constructor, protoProps, staticProps) {
-        if (protoProps) _defineProperties(Constructor.prototype, protoProps);
-        if (staticProps) _defineProperties(Constructor, staticProps);
-        return Constructor;
-      }
-
-      module.exports = _createClass;
-      module.exports["default"] = module.exports, module.exports.__esModule = true;
-    });
-    var setPrototypeOf = createCommonjsModule(function (module) {
-      function _setPrototypeOf(o, p) {
-        module.exports = _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) {
-          o.__proto__ = p;
-          return o;
-        };
-
-        module.exports["default"] = module.exports, module.exports.__esModule = true;
-        return _setPrototypeOf(o, p);
-      }
-
-      module.exports = _setPrototypeOf;
-      module.exports["default"] = module.exports, module.exports.__esModule = true;
-    });
-    var inheritsLoose = createCommonjsModule(function (module) {
-      function _inheritsLoose(subClass, superClass) {
-        subClass.prototype = Object.create(superClass.prototype);
-        subClass.prototype.constructor = subClass;
-        setPrototypeOf(subClass, superClass);
-      }
-
-      module.exports = _inheritsLoose;
-      module.exports["default"] = module.exports, module.exports.__esModule = true;
-    });
-    /**
-     * @file stream.js
-     */
-
-    /**
-     * A lightweight readable stream implemention that handles event dispatching.
-     *
-     * @class Stream
-     */
-
-    var Stream = /*#__PURE__*/function () {
-      function Stream() {
-        this.listeners = {};
-      }
-      /**
-       * Add a listener for a specified event type.
-       *
-       * @param {string} type the event name
-       * @param {Function} listener the callback to be invoked when an event of
-       * the specified type occurs
-       */
-
-
-      var _proto = Stream.prototype;
-
-      _proto.on = function on(type, listener) {
-        if (!this.listeners[type]) {
-          this.listeners[type] = [];
-        }
-
-        this.listeners[type].push(listener);
-      }
-      /**
-       * Remove a listener for a specified event type.
-       *
-       * @param {string} type the event name
-       * @param {Function} listener  a function previously registered for this
-       * type of event through `on`
-       * @return {boolean} if we could turn it off or not
-       */
-      ;
-
-      _proto.off = function off(type, listener) {
-        if (!this.listeners[type]) {
-          return false;
-        }
-
-        var index = this.listeners[type].indexOf(listener); // TODO: which is better?
-        // In Video.js we slice listener functions
-        // on trigger so that it does not mess up the order
-        // while we loop through.
-        //
-        // Here we slice on off so that the loop in trigger
-        // can continue using it's old reference to loop without
-        // messing up the order.
-
-        this.listeners[type] = this.listeners[type].slice(0);
-        this.listeners[type].splice(index, 1);
-        return index > -1;
-      }
-      /**
-       * Trigger an event of the specified type on this stream. Any additional
-       * arguments to this function are passed as parameters to event listeners.
-       *
-       * @param {string} type the event name
-       */
-      ;
-
-      _proto.trigger = function trigger(type) {
-        var callbacks = this.listeners[type];
-
-        if (!callbacks) {
-          return;
-        } // Slicing the arguments on every invocation of this method
-        // can add a significant amount of overhead. Avoid the
-        // intermediate object creation for the common case of a
-        // single callback argument
-
-
-        if (arguments.length === 2) {
-          var length = callbacks.length;
-
-          for (var i = 0; i < length; ++i) {
-            callbacks[i].call(this, arguments[1]);
-          }
-        } else {
-          var args = Array.prototype.slice.call(arguments, 1);
-          var _length = callbacks.length;
-
-          for (var _i = 0; _i < _length; ++_i) {
-            callbacks[_i].apply(this, args);
-          }
-        }
-      }
-      /**
-       * Destroys the stream and cleans up.
-       */
-      ;
-
-      _proto.dispose = function dispose() {
-        this.listeners = {};
-      }
-      /**
-       * Forwards all `data` events on this stream to the destination stream. The
-       * destination stream should provide a method `push` to receive the data
-       * events as they arrive.
-       *
-       * @param {Stream} destination the stream that will receive all `data` events
-       * @see http://nodejs.org/api/stream.html#stream_readable_pipe_destination_options
-       */
-      ;
-
-      _proto.pipe = function pipe(destination) {
-        this.on('data', function (data) {
-          destination.push(data);
-        });
-      };
-
-      return Stream;
-    }();
-    /*! @name pkcs7 @version 1.0.4 @license Apache-2.0 */
-
-    /**
-     * Returns the subarray of a Uint8Array without PKCS#7 padding.
-     *
-     * @param padded {Uint8Array} unencrypted bytes that have been padded
-     * @return {Uint8Array} the unpadded bytes
-     * @see http://tools.ietf.org/html/rfc5652
-     */
-
-
-    function unpad(padded) {
-      return padded.subarray(0, padded.byteLength - padded[padded.byteLength - 1]);
-    }
-    /*! @name aes-decrypter @version 3.1.3 @license Apache-2.0 */
-
-    /**
-     * @file aes.js
-     *
-     * This file contains an adaptation of the AES decryption algorithm
-     * from the Standford Javascript Cryptography Library. That work is
-     * covered by the following copyright and permissions notice:
-     *
-     * Copyright 2009-2010 Emily Stark, Mike Hamburg, Dan Boneh.
-     * All rights reserved.
-     *
-     * Redistribution and use in source and binary forms, with or without
-     * modification, are permitted provided that the following conditions are
-     * met:
-     *
-     * 1. Redistributions of source code must retain the above copyright
-     *    notice, this list of conditions and the following disclaimer.
-     *
-     * 2. Redistributions in binary form must reproduce the above
-     *    copyright notice, this list of conditions and the following
-     *    disclaimer in the documentation and/or other materials provided
-     *    with the distribution.
-     *
-     * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR
-     * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
-     * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
-     * DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> OR CONTRIBUTORS BE
-     * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
-     * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
-     * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
-     * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
-     * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
-     * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
-     * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-     *
-     * The views and conclusions contained in the software and documentation
-     * are those of the authors and should not be interpreted as representing
-     * official policies, either expressed or implied, of the authors.
-     */
-
-    /**
-     * Expand the S-box tables.
-     *
-     * @private
-     */
-
-
-    var precompute = function precompute() {
-      var tables = [[[], [], [], [], []], [[], [], [], [], []]];
-      var encTable = tables[0];
-      var decTable = tables[1];
-      var sbox = encTable[4];
-      var sboxInv = decTable[4];
-      var i;
-      var x;
-      var xInv;
-      var d = [];
-      var th = [];
-      var x2;
-      var x4;
-      var x8;
-      var s;
-      var tEnc;
-      var tDec; // Compute double and third tables
-
-      for (i = 0; i < 256; i++) {
-        th[(d[i] = i << 1 ^ (i >> 7) * 283) ^ i] = i;
-      }
-
-      for (x = xInv = 0; !sbox[x]; x ^= x2 || 1, xInv = th[xInv] || 1) {
-        // Compute sbox
-        s = xInv ^ xInv << 1 ^ xInv << 2 ^ xInv << 3 ^ xInv << 4;
-        s = s >> 8 ^ s & 255 ^ 99;
-        sbox[x] = s;
-        sboxInv[s] = x; // Compute MixColumns
-
-        x8 = d[x4 = d[x2 = d[x]]];
-        tDec = x8 * 0x1010101 ^ x4 * 0x10001 ^ x2 * 0x101 ^ x * 0x1010100;
-        tEnc = d[s] * 0x101 ^ s * 0x1010100;
-
-        for (i = 0; i < 4; i++) {
-          encTable[i][x] = tEnc = tEnc << 24 ^ tEnc >>> 8;
-          decTable[i][s] = tDec = tDec << 24 ^ tDec >>> 8;
-        }
-      } // Compactify. Considerable speedup on Firefox.
-
-
-      for (i = 0; i < 5; i++) {
-        encTable[i] = encTable[i].slice(0);
-        decTable[i] = decTable[i].slice(0);
-      }
-
-      return tables;
-    };
-
-    var aesTables = null;
-    /**
-     * Schedule out an AES key for both encryption and decryption. This
-     * is a low-level class. Use a cipher mode to do bulk encryption.
-     *
-     * @class AES
-     * @param key {Array} The key as an array of 4, 6 or 8 words.
-     */
-
-    var AES = /*#__PURE__*/function () {
-      function AES(key) {
-        /**
-        * The expanded S-box and inverse S-box tables. These will be computed
-        * on the client so that we don't have to send them down the wire.
-        *
-        * There are two tables, _tables[0] is for encryption and
-        * _tables[1] is for decryption.
-        *
-        * The first 4 sub-tables are the expanded S-box with MixColumns. The
-        * last (_tables[01][4]) is the S-box itself.
-        *
-        * @private
-        */
-        // if we have yet to precompute the S-box tables
-        // do so now
-        if (!aesTables) {
-          aesTables = precompute();
-        } // then make a copy of that object for use
-
-
-        this._tables = [[aesTables[0][0].slice(), aesTables[0][1].slice(), aesTables[0][2].slice(), aesTables[0][3].slice(), aesTables[0][4].slice()], [aesTables[1][0].slice(), aesTables[1][1].slice(), aesTables[1][2].slice(), aesTables[1][3].slice(), aesTables[1][4].slice()]];
-        var i;
-        var j;
-        var tmp;
-        var sbox = this._tables[0][4];
-        var decTable = this._tables[1];
-        var keyLen = key.length;
-        var rcon = 1;
-
-        if (keyLen !== 4 && keyLen !== 6 && keyLen !== 8) {
-          throw new Error('Invalid aes key size');
-        }
-
-        var encKey = key.slice(0);
-        var decKey = [];
-        this._key = [encKey, decKey]; // schedule encryption keys
-
-        for (i = keyLen; i < 4 * keyLen + 28; i++) {
-          tmp = encKey[i - 1]; // apply sbox
-
-          if (i % keyLen === 0 || keyLen === 8 && i % keyLen === 4) {
-            tmp = sbox[tmp >>> 24] << 24 ^ sbox[tmp >> 16 & 255] << 16 ^ sbox[tmp >> 8 & 255] << 8 ^ sbox[tmp & 255]; // shift rows and add rcon
-
-            if (i % keyLen === 0) {
-              tmp = tmp << 8 ^ tmp >>> 24 ^ rcon << 24;
-              rcon = rcon << 1 ^ (rcon >> 7) * 283;
+        const currentBandwidth = media.attributes.BANDWIDTH || Number.MAX_VALUE;
+        return main.playlists.filter(playlist => {
+            if (!isEnabled(playlist)) {
+                return false;
             }
-          }
+            return (playlist.attributes.BANDWIDTH || 0) < currentBandwidth;
+        }).length === 0;
+    };
+    const playlistMatch = (a, b) => {
+        // both playlits are null
+        // or only one playlist is non-null
+        // no match
+        if (!a && !b || !a && b || a && !b) {
+            return false;
+        } // playlist objects are the same, match
 
-          encKey[i] = encKey[i - keyLen] ^ tmp;
-        } // schedule decryption keys
+        if (a === b) {
+            return true;
+        } // first try to use id as it should be the most
+        // accurate
 
+        if (a.id && b.id && a.id === b.id) {
+            return true;
+        } // next try to use reslovedUri as it should be the
+        // second most accurate.
 
-        for (j = 0; i; j++, i--) {
-          tmp = encKey[j & 3 ? i : i - 4];
+        if (a.resolvedUri && b.resolvedUri && a.resolvedUri === b.resolvedUri) {
+            return true;
+        } // finally try to use uri as it should be accurate
+        // but might miss a few cases for relative uris
 
-          if (i <= 4 || j < 4) {
-            decKey[j] = tmp;
-          } else {
-            decKey[j] = decTable[0][sbox[tmp >>> 24]] ^ decTable[1][sbox[tmp >> 16 & 255]] ^ decTable[2][sbox[tmp >> 8 & 255]] ^ decTable[3][sbox[tmp & 255]];
-          }
+        if (a.uri && b.uri && a.uri === b.uri) {
+            return true;
         }
-      }
-      /**
-       * Decrypt 16 bytes, specified as four 32-bit words.
-       *
-       * @param {number} encrypted0 the first word to decrypt
-       * @param {number} encrypted1 the second word to decrypt
-       * @param {number} encrypted2 the third word to decrypt
-       * @param {number} encrypted3 the fourth word to decrypt
-       * @param {Int32Array} out the array to write the decrypted words
-       * into
-       * @param {number} offset the offset into the output array to start
-       * writing results
-       * @return {Array} The plaintext.
-       */
-
-
-      var _proto = AES.prototype;
-
-      _proto.decrypt = function decrypt(encrypted0, encrypted1, encrypted2, encrypted3, out, offset) {
-        var key = this._key[1]; // state variables a,b,c,d are loaded with pre-whitened data
-
-        var a = encrypted0 ^ key[0];
-        var b = encrypted3 ^ key[1];
-        var c = encrypted2 ^ key[2];
-        var d = encrypted1 ^ key[3];
-        var a2;
-        var b2;
-        var c2; // key.length === 2 ?
-
-        var nInnerRounds = key.length / 4 - 2;
-        var i;
-        var kIndex = 4;
-        var table = this._tables[1]; // load up the tables
-
-        var table0 = table[0];
-        var table1 = table[1];
-        var table2 = table[2];
-        var table3 = table[3];
-        var sbox = table[4]; // Inner rounds. Cribbed from OpenSSL.
-
-        for (i = 0; i < nInnerRounds; i++) {
-          a2 = table0[a >>> 24] ^ table1[b >> 16 & 255] ^ table2[c >> 8 & 255] ^ table3[d & 255] ^ key[kIndex];
-          b2 = table0[b >>> 24] ^ table1[c >> 16 & 255] ^ table2[d >> 8 & 255] ^ table3[a & 255] ^ key[kIndex + 1];
-          c2 = table0[c >>> 24] ^ table1[d >> 16 & 255] ^ table2[a >> 8 & 255] ^ table3[b & 255] ^ key[kIndex + 2];
-          d = table0[d >>> 24] ^ table1[a >> 16 & 255] ^ table2[b >> 8 & 255] ^ table3[c & 255] ^ key[kIndex + 3];
-          kIndex += 4;
-          a = a2;
-          b = b2;
-          c = c2;
-        } // Last round.
-
-
-        for (i = 0; i < 4; i++) {
-          out[(3 & -i) + offset] = sbox[a >>> 24] << 24 ^ sbox[b >> 16 & 255] << 16 ^ sbox[c >> 8 & 255] << 8 ^ sbox[d & 255] ^ key[kIndex++];
-          a2 = a;
-          a = b;
-          b = c;
-          c = d;
-          d = a2;
+        return false;
+    };
+    const someAudioVariant = function (main, callback) {
+        const AUDIO = main && main.mediaGroups && main.mediaGroups.AUDIO || {};
+        let found = false;
+        for (const groupName in AUDIO) {
+            for (const label in AUDIO[groupName]) {
+                found = callback(AUDIO[groupName][label]);
+                if (found) {
+                    break;
+                }
+            }
+            if (found) {
+                break;
+            }
         }
-      };
+        return !!found;
+    };
+    const isAudioOnly = main => {
+        // we are audio only if we have no main playlists but do
+        // have media group playlists.
+        if (!main || !main.playlists || !main.playlists.length) {
+            // without audio variants or playlists this
+            // is not an audio only main.
+            const found = someAudioVariant(main, variant => variant.playlists && variant.playlists.length || variant.uri);
+            return found;
+        } // if every playlist has only an audio codec it is audio only
 
-      return AES;
-    }();
-    /**
-     * A wrapper around the Stream class to use setTimeout
-     * and run stream "jobs" Asynchronously
-     *
-     * @class AsyncStream
-     * @extends Stream
-     */
+        for (let i = 0; i < main.playlists.length; i++) {
+            const playlist = main.playlists[i];
+            const CODECS = playlist.attributes && playlist.attributes.CODECS; // all codecs are audio, this is an audio playlist.
 
+            if (CODECS && CODECS.split(',').every(c => isAudioCodec(c))) {
+                continue;
+            } // playlist is in an audio group it is audio only
 
-    var AsyncStream = /*#__PURE__*/function (_Stream) {
-      inheritsLoose(AsyncStream, _Stream);
+            const found = someAudioVariant(main, variant => playlistMatch(playlist, variant));
+            if (found) {
+                continue;
+            } // if we make it here this playlist isn't audio and we
+            // are not audio only
 
-      function AsyncStream() {
-        var _this;
+            return false;
+        } // if we make it past every playlist without returning, then
+        // this is an audio only playlist.
 
-        _this = _Stream.call(this, Stream) || this;
-        _this.jobs = [];
-        _this.delay = 1;
-        _this.timeout_ = null;
-        return _this;
-      }
-      /**
-       * process an async job
-       *
-       * @private
-       */
+        return true;
+    }; // exports
 
+    var Playlist = {
+        liveEdgeDelay,
+        duration,
+        seekable,
+        getMediaInfoForTime,
+        isEnabled,
+        isDisabled,
+        isExcluded,
+        isIncompatible,
+        playlistEnd,
+        isAes,
+        hasAttribute,
+        estimateSegmentRequestTime,
+        isLowestEnabledRendition,
+        isAudioOnly,
+        playlistMatch,
+        segmentDurationWithParts
+    };
+    const {
+        log
+    } = videojs;
+    const createPlaylistID = (index, uri) => {
+        return `${index}-${uri}`;
+    }; // default function for creating a group id
 
-      var _proto = AsyncStream.prototype;
-
-      _proto.processJob_ = function processJob_() {
-        this.jobs.shift()();
-
-        if (this.jobs.length) {
-          this.timeout_ = setTimeout(this.processJob_.bind(this), this.delay);
-        } else {
-          this.timeout_ = null;
-        }
-      }
-      /**
-       * push a job into the stream
-       *
-       * @param {Function} job the job to push into the stream
-       */
-      ;
-
-      _proto.push = function push(job) {
-        this.jobs.push(job);
-
-        if (!this.timeout_) {
-          this.timeout_ = setTimeout(this.processJob_.bind(this), this.delay);
-        }
-      };
-
-      return AsyncStream;
-    }(Stream);
-    /**
-     * Convert network-order (big-endian) bytes into their little-endian
-     * representation.
-     */
-
-
-    var ntoh = function ntoh(word) {
-      return word << 24 | (word & 0xff00) << 8 | (word & 0xff0000) >> 8 | word >>> 24;
+    const groupID = (type, group, label) => {
+        return `placeholder-uri-${type}-${group}-${label}`;
     };
     /**
-     * Decrypt bytes using AES-128 with CBC and PKCS#7 padding.
+     * Parses a given m3u8 playlist
      *
-     * @param {Uint8Array} encrypted the encrypted bytes
-     * @param {Uint32Array} key the bytes of the decryption key
-     * @param {Uint32Array} initVector the initialization vector (IV) to
-     * use for the first round of CBC.
-     * @return {Uint8Array} the decrypted bytes
-     *
-     * @see http://en.wikipedia.org/wiki/Advanced_Encryption_Standard
-     * @see http://en.wikipedia.org/wiki/Block_cipher_mode_of_operation#Cipher_Block_Chaining_.28CBC.29
-     * @see https://tools.ietf.org/html/rfc2315
+     * @param {Function} [onwarn]
+     *        a function to call when the parser triggers a warning event.
+     * @param {Function} [oninfo]
+     *        a function to call when the parser triggers an info event.
+     * @param {string} manifestString
+     *        The downloaded manifest string
+     * @param {Object[]} [customTagParsers]
+     *        An array of custom tag parsers for the m3u8-parser instance
+     * @param {Object[]} [customTagMappers]
+     *        An array of custom tag mappers for the m3u8-parser instance
+     * @param {boolean} [llhls]
+     *        Whether to keep ll-hls features in the manifest after parsing.
+     * @return {Object}
+     *         The manifest object
      */
 
+    const parseManifest = ({
+                               onwarn,
+                               oninfo,
+                               manifestString,
+                               customTagParsers = [],
+                               customTagMappers = [],
+                               llhls
+                           }) => {
+        const parser = new Parser();
+        if (onwarn) {
+            parser.on('warn', onwarn);
+        }
+        if (oninfo) {
+            parser.on('info', oninfo);
+        }
+        customTagParsers.forEach(customParser => parser.addParser(customParser));
+        customTagMappers.forEach(mapper => parser.addTagMapper(mapper));
+        parser.push(manifestString);
+        parser.end();
+        const manifest = parser.manifest; // remove llhls features from the parsed manifest
+        // if we don't want llhls support.
 
-    var decrypt = function decrypt(encrypted, key, initVector) {
-      // word-level access to the encrypted bytes
-      var encrypted32 = new Int32Array(encrypted.buffer, encrypted.byteOffset, encrypted.byteLength >> 2);
-      var decipher = new AES(Array.prototype.slice.call(key)); // byte and word-level access for the decrypted output
-
-      var decrypted = new Uint8Array(encrypted.byteLength);
-      var decrypted32 = new Int32Array(decrypted.buffer); // temporary variables for working with the IV, encrypted, and
-      // decrypted data
-
-      var init0;
-      var init1;
-      var init2;
-      var init3;
-      var encrypted0;
-      var encrypted1;
-      var encrypted2;
-      var encrypted3; // iteration variable
-
-      var wordIx; // pull out the words of the IV to ensure we don't modify the
-      // passed-in reference and easier access
-
-      init0 = initVector[0];
-      init1 = initVector[1];
-      init2 = initVector[2];
-      init3 = initVector[3]; // decrypt four word sequences, applying cipher-block chaining (CBC)
-      // to each decrypted block
-
-      for (wordIx = 0; wordIx < encrypted32.length; wordIx += 4) {
-        // convert big-endian (network order) words into little-endian
-        // (javascript order)
-        encrypted0 = ntoh(encrypted32[wordIx]);
-        encrypted1 = ntoh(encrypted32[wordIx + 1]);
-        encrypted2 = ntoh(encrypted32[wordIx + 2]);
-        encrypted3 = ntoh(encrypted32[wordIx + 3]); // decrypt the block
-
-        decipher.decrypt(encrypted0, encrypted1, encrypted2, encrypted3, decrypted32, wordIx); // XOR with the IV, and restore network byte-order to obtain the
-        // plaintext
-
-        decrypted32[wordIx] = ntoh(decrypted32[wordIx] ^ init0);
-        decrypted32[wordIx + 1] = ntoh(decrypted32[wordIx + 1] ^ init1);
-        decrypted32[wordIx + 2] = ntoh(decrypted32[wordIx + 2] ^ init2);
-        decrypted32[wordIx + 3] = ntoh(decrypted32[wordIx + 3] ^ init3); // setup the IV for the next round
-
-        init0 = encrypted0;
-        init1 = encrypted1;
-        init2 = encrypted2;
-        init3 = encrypted3;
-      }
-
-      return decrypted;
+        if (!llhls) {
+            ['preloadSegment', 'skip', 'serverControl', 'renditionReports', 'partInf', 'partTargetDuration'].forEach(function (k) {
+                if (manifest.hasOwnProperty(k)) {
+                    delete manifest[k];
+                }
+            });
+            if (manifest.segments) {
+                manifest.segments.forEach(function (segment) {
+                    ['parts', 'preloadHints'].forEach(function (k) {
+                        if (segment.hasOwnProperty(k)) {
+                            delete segment[k];
+                        }
+                    });
+                });
+            }
+        }
+        if (!manifest.targetDuration) {
+            let targetDuration = 10;
+            if (manifest.segments && manifest.segments.length) {
+                targetDuration = manifest.segments.reduce((acc, s) => Math.max(acc, s.duration), 0);
+            }
+            if (onwarn) {
+                onwarn(`manifest has no targetDuration defaulting to ${targetDuration}`);
+            }
+            manifest.targetDuration = targetDuration;
+        }
+        const parts = getLastParts(manifest);
+        if (parts.length && !manifest.partTargetDuration) {
+            const partTargetDuration = parts.reduce((acc, p) => Math.max(acc, p.duration), 0);
+            if (onwarn) {
+                onwarn(`manifest has no partTargetDuration defaulting to ${partTargetDuration}`);
+                log.error('LL-HLS manifest has parts but lacks required #EXT-X-PART-INF:PART-TARGET value. See https://datatracker.ietf.org/doc/html/draft-pantos-hls-rfc8216bis-09#section-4.4.3.7. Playback is not guaranteed.');
+            }
+            manifest.partTargetDuration = partTargetDuration;
+        }
+        return manifest;
     };
     /**
-     * The `Decrypter` class that manages decryption of AES
-     * data through `AsyncStream` objects and the `decrypt`
-     * function
+     * Loops through all supported media groups in main and calls the provided
+     * callback for each group
      *
-     * @param {Uint8Array} encrypted the encrypted bytes
-     * @param {Uint32Array} key the bytes of the decryption key
-     * @param {Uint32Array} initVector the initialization vector (IV) to
-     * @param {Function} done the function to run when done
-     * @class Decrypter
+     * @param {Object} main
+     *        The parsed main manifest object
+     * @param {Function} callback
+     *        Callback to call for each media group
      */
 
-
-    var Decrypter = /*#__PURE__*/function () {
-      function Decrypter(encrypted, key, initVector, done) {
-        var step = Decrypter.STEP;
-        var encrypted32 = new Int32Array(encrypted.buffer);
-        var decrypted = new Uint8Array(encrypted.byteLength);
-        var i = 0;
-        this.asyncStream_ = new AsyncStream(); // split up the encryption job and do the individual chunks asynchronously
-
-        this.asyncStream_.push(this.decryptChunk_(encrypted32.subarray(i, i + step), key, initVector, decrypted));
-
-        for (i = step; i < encrypted32.length; i += step) {
-          initVector = new Uint32Array([ntoh(encrypted32[i - 4]), ntoh(encrypted32[i - 3]), ntoh(encrypted32[i - 2]), ntoh(encrypted32[i - 1])]);
-          this.asyncStream_.push(this.decryptChunk_(encrypted32.subarray(i, i + step), key, initVector, decrypted));
-        } // invoke the done() callback when everything is finished
-
-
-        this.asyncStream_.push(function () {
-          // remove pkcs#7 padding from the decrypted bytes
-          done(null, unpad(decrypted));
+    const forEachMediaGroup = (main, callback) => {
+        if (!main.mediaGroups) {
+            return;
+        }
+        ['AUDIO', 'SUBTITLES'].forEach(mediaType => {
+            if (!main.mediaGroups[mediaType]) {
+                return;
+            }
+            for (const groupKey in main.mediaGroups[mediaType]) {
+                for (const labelKey in main.mediaGroups[mediaType][groupKey]) {
+                    const mediaProperties = main.mediaGroups[mediaType][groupKey][labelKey];
+                    callback(mediaProperties, mediaType, groupKey, labelKey);
+                }
+            }
         });
-      }
-      /**
-       * a getter for step the maximum number of bytes to process at one time
-       *
-       * @return {number} the value of step 32000
-       */
+    };
+    /**
+     * Adds properties and attributes to the playlist to keep consistent functionality for
+     * playlists throughout VHS.
+     *
+     * @param {Object} config
+     *        Arguments object
+     * @param {Object} config.playlist
+     *        The media playlist
+     * @param {string} [config.uri]
+     *        The uri to the media playlist (if media playlist is not from within a main
+     *        playlist)
+     * @param {string} id
+     *        ID to use for the playlist
+     */
 
+    const setupMediaPlaylist = ({
+                                    playlist,
+                                    uri,
+                                    id
+                                }) => {
+        playlist.id = id;
+        playlist.playlistErrors_ = 0;
+        if (uri) {
+            // For media playlists, m3u8-parser does not have access to a URI, as HLS media
+            // playlists do not contain their own source URI, but one is needed for consistency in
+            // VHS.
+            playlist.uri = uri;
+        } // For HLS main playlists, even though certain attributes MUST be defined, the
+        // stream may still be played without them.
+        // For HLS media playlists, m3u8-parser does not attach an attributes object to the
+        // manifest.
+        //
+        // To avoid undefined reference errors through the project, and make the code easier
+        // to write/read, add an empty attributes object for these cases.
 
-      var _proto = Decrypter.prototype;
-      /**
-       * @private
-       */
+        playlist.attributes = playlist.attributes || {};
+    };
+    /**
+     * Adds ID, resolvedUri, and attributes properties to each playlist of the main, where
+     * necessary. In addition, creates playlist IDs for each playlist and adds playlist ID to
+     * playlist references to the playlists array.
+     *
+     * @param {Object} main
+     *        The main playlist
+     */
 
-      _proto.decryptChunk_ = function decryptChunk_(encrypted, key, initVector, decrypted) {
-        return function () {
-          var bytes = decrypt(encrypted, key, initVector);
-          decrypted.set(bytes, encrypted.byteOffset);
-        };
-      };
+    const setupMediaPlaylists = main => {
+        let i = main.playlists.length;
+        while (i--) {
+            const playlist = main.playlists[i];
+            setupMediaPlaylist({
+                playlist,
+                id: createPlaylistID(i, playlist.uri)
+            });
+            playlist.resolvedUri = resolveUrl(main.uri, playlist.uri);
+            main.playlists[playlist.id] = playlist; // URI reference added for backwards compatibility
 
-      createClass(Decrypter, null, [{
-        key: "STEP",
-        get: function get() {
-          // 4 * 8000;
-          return 32000;
+            main.playlists[playlist.uri] = playlist; // Although the spec states an #EXT-X-STREAM-INF tag MUST have a BANDWIDTH attribute,
+            // the stream can be played without it. Although an attributes property may have been
+            // added to the playlist to prevent undefined references, issue a warning to fix the
+            // manifest.
+
+            if (!playlist.attributes.BANDWIDTH) {
+                log.warn('Invalid playlist STREAM-INF detected. Missing BANDWIDTH attribute.');
+            }
         }
-      }]);
-      return Decrypter;
-    }();
+    };
+    /**
+     * Adds resolvedUri properties to each media group.
+     *
+     * @param {Object} main
+     *        The main playlist
+     */
 
-    var win;
+    const resolveMediaGroupUris = main => {
+        forEachMediaGroup(main, properties => {
+            if (properties.uri) {
+                properties.resolvedUri = resolveUrl(main.uri, properties.uri);
+            }
+        });
+    };
+    /**
+     * Creates a main playlist wrapper to insert a sole media playlist into.
+     *
+     * @param {Object} media
+     *        Media playlist
+     * @param {string} uri
+     *        The media URI
+     *
+     * @return {Object}
+     *         main playlist
+     */
 
-    if (typeof window !== "undefined") {
-      win = window;
-    } else if (typeof commonjsGlobal !== "undefined") {
-      win = commonjsGlobal;
-    } else if (typeof self !== "undefined") {
-      win = self;
-    } else {
-      win = {};
+    const mainForMedia = (media, uri) => {
+        const id = createPlaylistID(0, uri);
+        const main = {
+            mediaGroups: {
+                'AUDIO': {},
+                'VIDEO': {},
+                'CLOSED-CAPTIONS': {},
+                'SUBTITLES': {}
+            },
+            uri: window.location.href,
+            resolvedUri: window.location.href,
+            playlists: [{
+                uri,
+                id,
+                resolvedUri: uri,
+                // m3u8-parser does not attach an attributes property to media playlists so make
+                // sure that the property is attached to avoid undefined reference errors
+                attributes: {}
+            }]
+        }; // set up ID reference
+
+        main.playlists[id] = main.playlists[0]; // URI reference added for backwards compatibility
+
+        main.playlists[uri] = main.playlists[0];
+        return main;
+    };
+    /**
+     * Does an in-place update of the main manifest to add updated playlist URI references
+     * as well as other properties needed by VHS that aren't included by the parser.
+     *
+     * @param {Object} main
+     *        main manifest object
+     * @param {string} uri
+     *        The source URI
+     * @param {function} createGroupID
+     *        A function to determine how to create the groupID for mediaGroups
+     */
+
+    const addPropertiesToMain = (main, uri, createGroupID = groupID) => {
+        main.uri = uri;
+        for (let i = 0; i < main.playlists.length; i++) {
+            if (!main.playlists[i].uri) {
+                // Set up phony URIs for the playlists since playlists are referenced by their URIs
+                // throughout VHS, but some formats (e.g., DASH) don't have external URIs
+                // TODO: consider adding dummy URIs in mpd-parser
+                const phonyUri = `placeholder-uri-${i}`;
+                main.playlists[i].uri = phonyUri;
+            }
+        }
+        const audioOnlyMain = isAudioOnly(main);
+        forEachMediaGroup(main, (properties, mediaType, groupKey, labelKey) => {
+            // add a playlist array under properties
+            if (!properties.playlists || !properties.playlists.length) {
+                // If the manifest is audio only and this media group does not have a uri, check
+                // if the media group is located in the main list of playlists. If it is, don't add
+                // placeholder properties as it shouldn't be considered an alternate audio track.
+                if (audioOnlyMain && mediaType === 'AUDIO' && !properties.uri) {
+                    for (let i = 0; i < main.playlists.length; i++) {
+                        const p = main.playlists[i];
+                        if (p.attributes && p.attributes.AUDIO && p.attributes.AUDIO === groupKey) {
+                            return;
+                        }
+                    }
+                }
+                properties.playlists = [_extends$1({}, properties)];
+            }
+            properties.playlists.forEach(function (p, i) {
+                const groupId = createGroupID(mediaType, groupKey, labelKey, p);
+                const id = createPlaylistID(i, groupId);
+                if (p.uri) {
+                    p.resolvedUri = p.resolvedUri || resolveUrl(main.uri, p.uri);
+                } else {
+                    // DEPRECATED, this has been added to prevent a breaking change.
+                    // previously we only ever had a single media group playlist, so
+                    // we mark the first playlist uri without prepending the index as we used to
+                    // ideally we would do all of the playlists the same way.
+                    p.uri = i === 0 ? groupId : id; // don't resolve a placeholder uri to an absolute url, just use
+                    // the placeholder again
+
+                    p.resolvedUri = p.uri;
+                }
+                p.id = p.id || id; // add an empty attributes object, all playlists are
+                // expected to have this.
+
+                p.attributes = p.attributes || {}; // setup ID and URI references (URI for backwards compatibility)
+
+                main.playlists[p.id] = p;
+                main.playlists[p.uri] = p;
+            });
+        });
+        setupMediaPlaylists(main);
+        resolveMediaGroupUris(main);
+    };
+
+    /**
+     * @file playlist-loader.js
+     *
+     * A state machine that manages the loading, caching, and updating of
+     * M3U8 playlists.
+     *
+     */
+    const {
+        EventTarget: EventTarget$1
+    } = videojs;
+    const addLLHLSQueryDirectives = (uri, media) => {
+        if (media.endList || !media.serverControl) {
+            return uri;
+        }
+        const parameters = {};
+        if (media.serverControl.canBlockReload) {
+            const {
+                preloadSegment
+            } = media; // next msn is a zero based value, length is not.
+
+            let nextMSN = media.mediaSequence + media.segments.length; // If preload segment has parts then it is likely
+            // that we are going to request a part of that preload segment.
+            // the logic below is used to determine that.
+
+            if (preloadSegment) {
+                const parts = preloadSegment.parts || []; // _HLS_part is a zero based index
+
+                const nextPart = getKnownPartCount(media) - 1; // if nextPart is > -1 and not equal to just the
+                // length of parts, then we know we had part preload hints
+                // and we need to add the _HLS_part= query
+
+                if (nextPart > -1 && nextPart !== parts.length - 1) {
+                    // add existing parts to our preload hints
+                    // eslint-disable-next-line
+                    parameters._HLS_part = nextPart;
+                } // this if statement makes sure that we request the msn
+                // of the preload segment if:
+                // 1. the preload segment had parts (and was not yet a full segment)
+                //    but was added to our segments array
+                // 2. the preload segment had preload hints for parts that are not in
+                //    the manifest yet.
+                // in all other cases we want the segment after the preload segment
+                // which will be given by using media.segments.length because it is 1 based
+                // rather than 0 based.
+
+                if (nextPart > -1 || parts.length) {
+                    nextMSN--;
+                }
+            } // add _HLS_msn= in front of any _HLS_part query
+            // eslint-disable-next-line
+
+            parameters._HLS_msn = nextMSN;
+        }
+        if (media.serverControl && media.serverControl.canSkipUntil) {
+            // add _HLS_skip= infront of all other queries.
+            // eslint-disable-next-line
+            parameters._HLS_skip = media.serverControl.canSkipDateranges ? 'v2' : 'YES';
+        }
+        if (Object.keys(parameters).length) {
+            const parsedUri = new window.URL(uri);
+            ['_HLS_skip', '_HLS_msn', '_HLS_part'].forEach(function (name) {
+                if (!parameters.hasOwnProperty(name)) {
+                    return;
+                }
+                parsedUri.searchParams.set(name, parameters[name]);
+            });
+            uri = parsedUri.toString();
+        }
+        return uri;
+    };
+    /**
+     * Returns a new segment object with properties and
+     * the parts array merged.
+     *
+     * @param {Object} a the old segment
+     * @param {Object} b the new segment
+     *
+     * @return {Object} the merged segment
+     */
+
+    const updateSegment = (a, b) => {
+        if (!a) {
+            return b;
+        }
+        const result = merge(a, b); // if only the old segment has preload hints
+        // and the new one does not, remove preload hints.
+
+        if (a.preloadHints && !b.preloadHints) {
+            delete result.preloadHints;
+        } // if only the old segment has parts
+        // then the parts are no longer valid
+
+        if (a.parts && !b.parts) {
+            delete result.parts; // if both segments have parts
+            // copy part propeties from the old segment
+            // to the new one.
+        } else if (a.parts && b.parts) {
+            for (let i = 0; i < b.parts.length; i++) {
+                if (a.parts && a.parts[i]) {
+                    result.parts[i] = merge(a.parts[i], b.parts[i]);
+                }
+            }
+        } // set skipped to false for segments that have
+        // have had information merged from the old segment.
+
+        if (!a.skipped && b.skipped) {
+            result.skipped = false;
+        } // set preload to false for segments that have
+        // had information added in the new segment.
+
+        if (a.preload && !b.preload) {
+            result.preload = false;
+        }
+        return result;
+    };
+    /**
+     * Returns a new array of segments that is the result of merging
+     * properties from an older list of segments onto an updated
+     * list. No properties on the updated playlist will be ovewritten.
+     *
+     * @param {Array} original the outdated list of segments
+     * @param {Array} update the updated list of segments
+     * @param {number=} offset the index of the first update
+     * segment in the original segment list. For non-live playlists,
+     * this should always be zero and does not need to be
+     * specified. For live playlists, it should be the difference
+     * between the media sequence numbers in the original and updated
+     * playlists.
+     * @return {Array} a list of merged segment objects
+     */
+
+    const updateSegments = (original, update, offset) => {
+        const oldSegments = original.slice();
+        const newSegments = update.slice();
+        offset = offset || 0;
+        const result = [];
+        let currentMap;
+        for (let newIndex = 0; newIndex < newSegments.length; newIndex++) {
+            const oldSegment = oldSegments[newIndex + offset];
+            const newSegment = newSegments[newIndex];
+            if (oldSegment) {
+                currentMap = oldSegment.map || currentMap;
+                result.push(updateSegment(oldSegment, newSegment));
+            } else {
+                // carry over map to new segment if it is missing
+                if (currentMap && !newSegment.map) {
+                    newSegment.map = currentMap;
+                }
+                result.push(newSegment);
+            }
+        }
+        return result;
+    };
+    const resolveSegmentUris = (segment, baseUri) => {
+        // preloadSegment will not have a uri at all
+        // as the segment isn't actually in the manifest yet, only parts
+        if (!segment.resolvedUri && segment.uri) {
+            segment.resolvedUri = resolveUrl(baseUri, segment.uri);
+        }
+        if (segment.key && !segment.key.resolvedUri) {
+            segment.key.resolvedUri = resolveUrl(baseUri, segment.key.uri);
+        }
+        if (segment.map && !segment.map.resolvedUri) {
+            segment.map.resolvedUri = resolveUrl(baseUri, segment.map.uri);
+        }
+        if (segment.map && segment.map.key && !segment.map.key.resolvedUri) {
+            segment.map.key.resolvedUri = resolveUrl(baseUri, segment.map.key.uri);
+        }
+        if (segment.parts && segment.parts.length) {
+            segment.parts.forEach(p => {
+                if (p.resolvedUri) {
+                    return;
+                }
+                p.resolvedUri = resolveUrl(baseUri, p.uri);
+            });
+        }
+        if (segment.preloadHints && segment.preloadHints.length) {
+            segment.preloadHints.forEach(p => {
+                if (p.resolvedUri) {
+                    return;
+                }
+                p.resolvedUri = resolveUrl(baseUri, p.uri);
+            });
+        }
+    };
+    const getAllSegments = function (media) {
+        const segments = media.segments || [];
+        const preloadSegment = media.preloadSegment; // a preloadSegment with only preloadHints is not currently
+        // a usable segment, only include a preloadSegment that has
+        // parts.
+
+        if (preloadSegment && preloadSegment.parts && preloadSegment.parts.length) {
+            // if preloadHints has a MAP that means that the
+            // init segment is going to change. We cannot use any of the parts
+            // from this preload segment.
+            if (preloadSegment.preloadHints) {
+                for (let i = 0; i < preloadSegment.preloadHints.length; i++) {
+                    if (preloadSegment.preloadHints[i].type === 'MAP') {
+                        return segments;
+                    }
+                }
+            } // set the duration for our preload segment to target duration.
+
+            preloadSegment.duration = media.targetDuration;
+            preloadSegment.preload = true;
+            segments.push(preloadSegment);
+        }
+        return segments;
+    }; // consider the playlist unchanged if the playlist object is the same or
+    // the number of segments is equal, the media sequence number is unchanged,
+    // and this playlist hasn't become the end of the playlist
+
+    const isPlaylistUnchanged = (a, b) => a === b || a.segments && b.segments && a.segments.length === b.segments.length && a.endList === b.endList && a.mediaSequence === b.mediaSequence && a.preloadSegment === b.preloadSegment;
+    /**
+     * Returns a new main playlist that is the result of merging an
+     * updated media playlist into the original version. If the
+     * updated media playlist does not match any of the playlist
+     * entries in the original main playlist, null is returned.
+     *
+     * @param {Object} main a parsed main M3U8 object
+     * @param {Object} media a parsed media M3U8 object
+     * @return {Object} a new object that represents the original
+     * main playlist with the updated media playlist merged in, or
+     * null if the merge produced no change.
+     */
+
+    const updateMain$1 = (main, newMedia, unchangedCheck = isPlaylistUnchanged) => {
+        const result = merge(main, {});
+        const oldMedia = result.playlists[newMedia.id];
+        if (!oldMedia) {
+            return null;
+        }
+        if (unchangedCheck(oldMedia, newMedia)) {
+            return null;
+        }
+        newMedia.segments = getAllSegments(newMedia);
+        const mergedPlaylist = merge(oldMedia, newMedia); // always use the new media's preload segment
+
+        if (mergedPlaylist.preloadSegment && !newMedia.preloadSegment) {
+            delete mergedPlaylist.preloadSegment;
+        } // if the update could overlap existing segment information, merge the two segment lists
+
+        if (oldMedia.segments) {
+            if (newMedia.skip) {
+                newMedia.segments = newMedia.segments || []; // add back in objects for skipped segments, so that we merge
+                // old properties into the new segments
+
+                for (let i = 0; i < newMedia.skip.skippedSegments; i++) {
+                    newMedia.segments.unshift({
+                        skipped: true
+                    });
+                }
+            }
+            mergedPlaylist.segments = updateSegments(oldMedia.segments, newMedia.segments, newMedia.mediaSequence - oldMedia.mediaSequence);
+        } // resolve any segment URIs to prevent us from having to do it later
+
+        mergedPlaylist.segments.forEach(segment => {
+            resolveSegmentUris(segment, mergedPlaylist.resolvedUri);
+        }); // TODO Right now in the playlists array there are two references to each playlist, one
+        // that is referenced by index, and one by URI. The index reference may no longer be
+        // necessary.
+
+        for (let i = 0; i < result.playlists.length; i++) {
+            if (result.playlists[i].id === newMedia.id) {
+                result.playlists[i] = mergedPlaylist;
+            }
+        }
+        result.playlists[newMedia.id] = mergedPlaylist; // URI reference added for backwards compatibility
+
+        result.playlists[newMedia.uri] = mergedPlaylist; // update media group playlist references.
+
+        forEachMediaGroup(main, (properties, mediaType, groupKey, labelKey) => {
+            if (!properties.playlists) {
+                return;
+            }
+            for (let i = 0; i < properties.playlists.length; i++) {
+                if (newMedia.id === properties.playlists[i].id) {
+                    properties.playlists[i] = mergedPlaylist;
+                }
+            }
+        });
+        return result;
+    };
+    /**
+     * Calculates the time to wait before refreshing a live playlist
+     *
+     * @param {Object} media
+     *        The current media
+     * @param {boolean} update
+     *        True if there were any updates from the last refresh, false otherwise
+     * @return {number}
+     *         The time in ms to wait before refreshing the live playlist
+     */
+
+    const refreshDelay = (media, update) => {
+        const segments = media.segments || [];
+        const lastSegment = segments[segments.length - 1];
+        const lastPart = lastSegment && lastSegment.parts && lastSegment.parts[lastSegment.parts.length - 1];
+        const lastDuration = lastPart && lastPart.duration || lastSegment && lastSegment.duration;
+        if (update && lastDuration) {
+            return lastDuration * 1000;
+        } // if the playlist is unchanged since the last reload or last segment duration
+        // cannot be determined, try again after half the target duration
+
+        return (media.partTargetDuration || media.targetDuration || 10) * 500;
+    };
+    /**
+     * Load a playlist from a remote location
+     *
+     * @class PlaylistLoader
+     * @extends Stream
+     * @param {string|Object} src url or object of manifest
+     * @param {boolean} withCredentials the withCredentials xhr option
+     * @class
+     */
+
+    class PlaylistLoader extends EventTarget$1 {
+        constructor(src, vhs, options = {}) {
+            super();
+            if (!src) {
+                throw new Error('A non-empty playlist URL or object is required');
+            }
+            this.logger_ = logger('PlaylistLoader');
+            const {
+                withCredentials = false
+            } = options;
+            this.src = src;
+            this.vhs_ = vhs;
+            this.withCredentials = withCredentials;
+            const vhsOptions = vhs.options_;
+            this.customTagParsers = vhsOptions && vhsOptions.customTagParsers || [];
+            this.customTagMappers = vhsOptions && vhsOptions.customTagMappers || [];
+            this.llhls = vhsOptions && vhsOptions.llhls; // initialize the loader state
+
+            this.state = 'HAVE_NOTHING'; // live playlist staleness timeout
+
+            this.handleMediaupdatetimeout_ = this.handleMediaupdatetimeout_.bind(this);
+            this.on('mediaupdatetimeout', this.handleMediaupdatetimeout_);
+        }
+        handleMediaupdatetimeout_() {
+            if (this.state !== 'HAVE_METADATA') {
+                // only refresh the media playlist if no other activity is going on
+                return;
+            }
+            const media = this.media();
+            let uri = resolveUrl(this.main.uri, media.uri);
+            if (this.llhls) {
+                uri = addLLHLSQueryDirectives(uri, media);
+            }
+            this.state = 'HAVE_CURRENT_METADATA';
+            this.request = this.vhs_.xhr({
+                uri,
+                withCredentials: this.withCredentials
+            }, (error, req) => {
+                // disposed
+                if (!this.request) {
+                    return;
+                }
+                if (error) {
+                    return this.playlistRequestError(this.request, this.media(), 'HAVE_METADATA');
+                }
+                this.haveMetadata({
+                    playlistString: this.request.responseText,
+                    url: this.media().uri,
+                    id: this.media().id
+                });
+            });
+        }
+        playlistRequestError(xhr, playlist, startingState) {
+            const {
+                uri,
+                id
+            } = playlist; // any in-flight request is now finished
+
+            this.request = null;
+            if (startingState) {
+                this.state = startingState;
+            }
+            this.error = {
+                playlist: this.main.playlists[id],
+                status: xhr.status,
+                message: `HLS playlist request error at URL: ${uri}.`,
+                responseText: xhr.responseText,
+                code: xhr.status >= 500 ? 4 : 2
+            };
+            this.trigger('error');
+        }
+        parseManifest_({
+                           url,
+                           manifestString
+                       }) {
+            return parseManifest({
+                onwarn: ({
+                             message
+                         }) => this.logger_(`m3u8-parser warn for ${url}: ${message}`),
+                oninfo: ({
+                             message
+                         }) => this.logger_(`m3u8-parser info for ${url}: ${message}`),
+                manifestString,
+                customTagParsers: this.customTagParsers,
+                customTagMappers: this.customTagMappers,
+                llhls: this.llhls
+            });
+        }
+        /**
+         * Update the playlist loader's state in response to a new or updated playlist.
+         *
+         * @param {string} [playlistString]
+         *        Playlist string (if playlistObject is not provided)
+         * @param {Object} [playlistObject]
+         *        Playlist object (if playlistString is not provided)
+         * @param {string} url
+         *        URL of playlist
+         * @param {string} id
+         *        ID to use for playlist
+         */
+
+        haveMetadata({
+                         playlistString,
+                         playlistObject,
+                         url,
+                         id
+                     }) {
+            // any in-flight request is now finished
+            this.request = null;
+            this.state = 'HAVE_METADATA';
+            const playlist = playlistObject || this.parseManifest_({
+                url,
+                manifestString: playlistString
+            });
+            playlist.lastRequest = Date.now();
+            setupMediaPlaylist({
+                playlist,
+                uri: url,
+                id
+            }); // merge this playlist into the main manifest
+
+            const update = updateMain$1(this.main, playlist);
+            this.targetDuration = playlist.partTargetDuration || playlist.targetDuration;
+            this.pendingMedia_ = null;
+            if (update) {
+                this.main = update;
+                this.media_ = this.main.playlists[id];
+            } else {
+                this.trigger('playlistunchanged');
+            }
+            this.updateMediaUpdateTimeout_(refreshDelay(this.media(), !!update));
+            this.trigger('loadedplaylist');
+        }
+        /**
+         * Abort any outstanding work and clean up.
+         */
+
+        dispose() {
+            this.trigger('dispose');
+            this.stopRequest();
+            window.clearTimeout(this.mediaUpdateTimeout);
+            window.clearTimeout(this.finalRenditionTimeout);
+            this.off();
+        }
+        stopRequest() {
+            if (this.request) {
+                const oldRequest = this.request;
+                this.request = null;
+                oldRequest.onreadystatechange = null;
+                oldRequest.abort();
+            }
+        }
+        /**
+         * When called without any arguments, returns the currently
+         * active media playlist. When called with a single argument,
+         * triggers the playlist loader to asynchronously switch to the
+         * specified media playlist. Calling this method while the
+         * loader is in the HAVE_NOTHING causes an error to be emitted
+         * but otherwise has no effect.
+         *
+         * @param {Object=} playlist the parsed media playlist
+         * object to switch to
+         * @param {boolean=} shouldDelay whether we should delay the request by half target duration
+         *
+         * @return {Playlist} the current loaded media
+         */
+
+        media(playlist, shouldDelay) {
+            // getter
+            if (!playlist) {
+                return this.media_;
+            } // setter
+
+            if (this.state === 'HAVE_NOTHING') {
+                throw new Error('Cannot switch media playlist from ' + this.state);
+            } // find the playlist object if the target playlist has been
+            // specified by URI
+
+            if (typeof playlist === 'string') {
+                if (!this.main.playlists[playlist]) {
+                    throw new Error('Unknown playlist URI: ' + playlist);
+                }
+                playlist = this.main.playlists[playlist];
+            }
+            window.clearTimeout(this.finalRenditionTimeout);
+            if (shouldDelay) {
+                const delay = (playlist.partTargetDuration || playlist.targetDuration) / 2 * 1000 || 5 * 1000;
+                this.finalRenditionTimeout = window.setTimeout(this.media.bind(this, playlist, false), delay);
+                return;
+            }
+            const startingState = this.state;
+            const mediaChange = !this.media_ || playlist.id !== this.media_.id;
+            const mainPlaylistRef = this.main.playlists[playlist.id]; // switch to fully loaded playlists immediately
+
+            if (mainPlaylistRef && mainPlaylistRef.endList ||
+                // handle the case of a playlist object (e.g., if using vhs-json with a resolved
+                // media playlist or, for the case of demuxed audio, a resolved audio media group)
+                playlist.endList && playlist.segments.length) {
+                // abort outstanding playlist requests
+                if (this.request) {
+                    this.request.onreadystatechange = null;
+                    this.request.abort();
+                    this.request = null;
+                }
+                this.state = 'HAVE_METADATA';
+                this.media_ = playlist; // trigger media change if the active media has been updated
+
+                if (mediaChange) {
+                    this.trigger('mediachanging');
+                    if (startingState === 'HAVE_MAIN_MANIFEST') {
+                        // The initial playlist was a main manifest, and the first media selected was
+                        // also provided (in the form of a resolved playlist object) as part of the
+                        // source object (rather than just a URL). Therefore, since the media playlist
+                        // doesn't need to be requested, loadedmetadata won't trigger as part of the
+                        // normal flow, and needs an explicit trigger here.
+                        this.trigger('loadedmetadata');
+                    } else {
+                        this.trigger('mediachange');
+                    }
+                }
+                return;
+            } // We update/set the timeout here so that live playlists
+            // that are not a media change will "start" the loader as expected.
+            // We expect that this function will start the media update timeout
+            // cycle again. This also prevents a playlist switch failure from
+            // causing us to stall during live.
+
+            this.updateMediaUpdateTimeout_(refreshDelay(playlist, true)); // switching to the active playlist is a no-op
+
+            if (!mediaChange) {
+                return;
+            }
+            this.state = 'SWITCHING_MEDIA'; // there is already an outstanding playlist request
+
+            if (this.request) {
+                if (playlist.resolvedUri === this.request.url) {
+                    // requesting to switch to the same playlist multiple times
+                    // has no effect after the first
+                    return;
+                }
+                this.request.onreadystatechange = null;
+                this.request.abort();
+                this.request = null;
+            } // request the new playlist
+
+            if (this.media_) {
+                this.trigger('mediachanging');
+            }
+            this.pendingMedia_ = playlist;
+            this.request = this.vhs_.xhr({
+                uri: playlist.resolvedUri,
+                withCredentials: this.withCredentials
+            }, (error, req) => {
+                // disposed
+                if (!this.request) {
+                    return;
+                }
+                playlist.lastRequest = Date.now();
+                playlist.resolvedUri = resolveManifestRedirect(playlist.resolvedUri, req);
+                if (error) {
+                    return this.playlistRequestError(this.request, playlist, startingState);
+                }
+                this.haveMetadata({
+                    playlistString: req.responseText,
+                    url: playlist.uri,
+                    id: playlist.id
+                }); // fire loadedmetadata the first time a media playlist is loaded
+
+                if (startingState === 'HAVE_MAIN_MANIFEST') {
+                    this.trigger('loadedmetadata');
+                } else {
+                    this.trigger('mediachange');
+                }
+            });
+        }
+        /**
+         * pause loading of the playlist
+         */
+
+        pause() {
+            if (this.mediaUpdateTimeout) {
+                window.clearTimeout(this.mediaUpdateTimeout);
+                this.mediaUpdateTimeout = null;
+            }
+            this.stopRequest();
+            if (this.state === 'HAVE_NOTHING') {
+                // If we pause the loader before any data has been retrieved, its as if we never
+                // started, so reset to an unstarted state.
+                this.started = false;
+            } // Need to restore state now that no activity is happening
+
+            if (this.state === 'SWITCHING_MEDIA') {
+                // if the loader was in the process of switching media, it should either return to
+                // HAVE_MAIN_MANIFEST or HAVE_METADATA depending on if the loader has loaded a media
+                // playlist yet. This is determined by the existence of loader.media_
+                if (this.media_) {
+                    this.state = 'HAVE_METADATA';
+                } else {
+                    this.state = 'HAVE_MAIN_MANIFEST';
+                }
+            } else if (this.state === 'HAVE_CURRENT_METADATA') {
+                this.state = 'HAVE_METADATA';
+            }
+        }
+        /**
+         * start loading of the playlist
+         */
+
+        load(shouldDelay) {
+            if (this.mediaUpdateTimeout) {
+                window.clearTimeout(this.mediaUpdateTimeout);
+                this.mediaUpdateTimeout = null;
+            }
+            const media = this.media();
+            if (shouldDelay) {
+                const delay = media ? (media.partTargetDuration || media.targetDuration) / 2 * 1000 : 5 * 1000;
+                this.mediaUpdateTimeout = window.setTimeout(() => {
+                    this.mediaUpdateTimeout = null;
+                    this.load();
+                }, delay);
+                return;
+            }
+            if (!this.started) {
+                this.start();
+                return;
+            }
+            if (media && !media.endList) {
+                this.trigger('mediaupdatetimeout');
+            } else {
+                this.trigger('loadedplaylist');
+            }
+        }
+        updateMediaUpdateTimeout_(delay) {
+            if (this.mediaUpdateTimeout) {
+                window.clearTimeout(this.mediaUpdateTimeout);
+                this.mediaUpdateTimeout = null;
+            } // we only have use mediaupdatetimeout for live playlists.
+
+            if (!this.media() || this.media().endList) {
+                return;
+            }
+            this.mediaUpdateTimeout = window.setTimeout(() => {
+                this.mediaUpdateTimeout = null;
+                this.trigger('mediaupdatetimeout');
+                this.updateMediaUpdateTimeout_(delay);
+            }, delay);
+        }
+        /**
+         * start loading of the playlist
+         */
+
+        start() {
+            this.started = true;
+            if (typeof this.src === 'object') {
+                // in the case of an entirely constructed manifest object (meaning there's no actual
+                // manifest on a server), default the uri to the page's href
+                if (!this.src.uri) {
+                    this.src.uri = window.location.href;
+                } // resolvedUri is added on internally after the initial request. Since there's no
+                // request for pre-resolved manifests, add on resolvedUri here.
+
+                this.src.resolvedUri = this.src.uri; // Since a manifest object was passed in as the source (instead of a URL), the first
+                // request can be skipped (since the top level of the manifest, at a minimum, is
+                // already available as a parsed manifest object). However, if the manifest object
+                // represents a main playlist, some media playlists may need to be resolved before
+                // the starting segment list is available. Therefore, go directly to setup of the
+                // initial playlist, and let the normal flow continue from there.
+                //
+                // Note that the call to setup is asynchronous, as other sections of VHS may assume
+                // that the first request is asynchronous.
+
+                setTimeout(() => {
+                    this.setupInitialPlaylist(this.src);
+                }, 0);
+                return;
+            } // request the specified URL
+
+            this.request = this.vhs_.xhr({
+                uri: this.src,
+                withCredentials: this.withCredentials
+            }, (error, req) => {
+                // disposed
+                if (!this.request) {
+                    return;
+                } // clear the loader's request reference
+
+                this.request = null;
+                if (error) {
+                    this.error = {
+                        status: req.status,
+                        message: `HLS playlist request error at URL: ${this.src}.`,
+                        responseText: req.responseText,
+                        // MEDIA_ERR_NETWORK
+                        code: 2
+                    };
+                    if (this.state === 'HAVE_NOTHING') {
+                        this.started = false;
+                    }
+                    return this.trigger('error');
+                }
+                this.src = resolveManifestRedirect(this.src, req);
+                const manifest = this.parseManifest_({
+                    manifestString: req.responseText,
+                    url: this.src
+                });
+                this.setupInitialPlaylist(manifest);
+            });
+        }
+        srcUri() {
+            return typeof this.src === 'string' ? this.src : this.src.uri;
+        }
+        /**
+         * Given a manifest object that's either a main or media playlist, trigger the proper
+         * events and set the state of the playlist loader.
+         *
+         * If the manifest object represents a main playlist, `loadedplaylist` will be
+         * triggered to allow listeners to select a playlist. If none is selected, the loader
+         * will default to the first one in the playlists array.
+         *
+         * If the manifest object represents a media playlist, `loadedplaylist` will be
+         * triggered followed by `loadedmetadata`, as the only available playlist is loaded.
+         *
+         * In the case of a media playlist, a main playlist object wrapper with one playlist
+         * will be created so that all logic can handle playlists in the same fashion (as an
+         * assumed manifest object schema).
+         *
+         * @param {Object} manifest
+         *        The parsed manifest object
+         */
+
+        setupInitialPlaylist(manifest) {
+            this.state = 'HAVE_MAIN_MANIFEST';
+            if (manifest.playlists) {
+                this.main = manifest;
+                addPropertiesToMain(this.main, this.srcUri()); // If the initial main playlist has playlists wtih segments already resolved,
+                // then resolve URIs in advance, as they are usually done after a playlist request,
+                // which may not happen if the playlist is resolved.
+
+                manifest.playlists.forEach(playlist => {
+                    playlist.segments = getAllSegments(playlist);
+                    playlist.segments.forEach(segment => {
+                        resolveSegmentUris(segment, playlist.resolvedUri);
+                    });
+                });
+                this.trigger('loadedplaylist');
+                if (!this.request) {
+                    // no media playlist was specifically selected so start
+                    // from the first listed one
+                    this.media(this.main.playlists[0]);
+                }
+                return;
+            } // In order to support media playlists passed in as vhs-json, the case where the uri
+            // is not provided as part of the manifest should be considered, and an appropriate
+            // default used.
+
+            const uri = this.srcUri() || window.location.href;
+            this.main = mainForMedia(manifest, uri);
+            this.haveMetadata({
+                playlistObject: manifest,
+                url: uri,
+                id: this.main.playlists[0].id
+            });
+            this.trigger('loadedmetadata');
+        }
     }
 
-    var window_1 = win;
+    /**
+     * @file xhr.js
+     */
+    const {
+        xhr: videojsXHR
+    } = videojs;
+    const callbackWrapper = function (request, error, response, callback) {
+        const reqResponse = request.responseType === 'arraybuffer' ? request.response : request.responseText;
+        if (!error && reqResponse) {
+            request.responseTime = Date.now();
+            request.roundTripTime = request.responseTime - request.requestTime;
+            request.bytesReceived = reqResponse.byteLength || reqResponse.length;
+            if (!request.bandwidth) {
+                request.bandwidth = Math.floor(request.bytesReceived / request.roundTripTime * 8 * 1000);
+            }
+        }
+        if (response.headers) {
+            request.responseHeaders = response.headers;
+        } // videojs.xhr now uses a specific code on the error
+        // object to signal that a request has timed out instead
+        // of setting a boolean on the request object
 
-    var isArrayBufferView = function isArrayBufferView(obj) {
-      if (ArrayBuffer.isView === 'function') {
-        return ArrayBuffer.isView(obj);
-      }
+        if (error && error.code === 'ETIMEDOUT') {
+            request.timedout = true;
+        } // videojs.xhr no longer considers status codes outside of 200 and 0
+        // (for file uris) to be errors, but the old XHR did, so emulate that
+        // behavior. Status 206 may be used in response to byterange requests.
 
-      return obj && obj.buffer instanceof ArrayBuffer;
+        if (!error && !request.aborted && response.statusCode !== 200 && response.statusCode !== 206 && response.statusCode !== 0) {
+            error = new Error('XHR Failed with a response of: ' + (request && (reqResponse || request.responseText)));
+        }
+        callback(error, request);
+    };
+    const xhrFactory = function () {
+        const xhr = function XhrFunction(options, callback) {
+            // Add a default timeout
+            options = merge({
+                timeout: 45e3
+            }, options); // Allow an optional user-specified function to modify the option
+            // object before we construct the xhr request
+
+            const beforeRequest = XhrFunction.beforeRequest || videojs.Vhs.xhr.beforeRequest;
+            if (beforeRequest && typeof beforeRequest === 'function') {
+                const newOptions = beforeRequest(options);
+                if (newOptions) {
+                    options = newOptions;
+                }
+            } // Use the standard videojs.xhr() method unless `videojs.Vhs.xhr` has been overriden
+            // TODO: switch back to videojs.Vhs.xhr.name === 'XhrFunction' when we drop IE11
+
+            const xhrMethod = videojs.Vhs.xhr.original === true ? videojsXHR : videojs.Vhs.xhr;
+            const request = xhrMethod(options, function (error, response) {
+                return callbackWrapper(request, error, response, callback);
+            });
+            const originalAbort = request.abort;
+            request.abort = function () {
+                request.aborted = true;
+                return originalAbort.apply(request, arguments);
+            };
+            request.uri = options.uri;
+            request.requestTime = Date.now();
+            return request;
+        };
+        xhr.original = true;
+        return xhr;
+    };
+    /**
+     * Turns segment byterange into a string suitable for use in
+     * HTTP Range requests
+     *
+     * @param {Object} byterange - an object with two values defining the start and end
+     *                             of a byte-range
+     */
+
+    const byterangeStr = function (byterange) {
+        // `byterangeEnd` is one less than `offset + length` because the HTTP range
+        // header uses inclusive ranges
+        let byterangeEnd;
+        const byterangeStart = byterange.offset;
+        if (typeof byterange.offset === 'bigint' || typeof byterange.length === 'bigint') {
+            byterangeEnd = window.BigInt(byterange.offset) + window.BigInt(byterange.length) - window.BigInt(1);
+        } else {
+            byterangeEnd = byterange.offset + byterange.length - 1;
+        }
+        return 'bytes=' + byterangeStart + '-' + byterangeEnd;
+    };
+    /**
+     * Defines headers for use in the xhr request for a particular segment.
+     *
+     * @param {Object} segment - a simplified copy of the segmentInfo object
+     *                           from SegmentLoader
+     */
+
+    const segmentXhrHeaders = function (segment) {
+        const headers = {};
+        if (segment.byterange) {
+            headers.Range = byterangeStr(segment.byterange);
+        }
+        return headers;
     };
 
-    var BigInt = window_1.BigInt || Number;
-    [BigInt('0x1'), BigInt('0x100'), BigInt('0x10000'), BigInt('0x1000000'), BigInt('0x100000000'), BigInt('0x10000000000'), BigInt('0x1000000000000'), BigInt('0x100000000000000'), BigInt('0x10000000000000000')];
+    /**
+     * @file bin-utils.js
+     */
+
+    /**
+     * convert a TimeRange to text
+     *
+     * @param {TimeRange} range the timerange to use for conversion
+     * @param {number} i the iterator on the range to convert
+     * @return {string} the range in string format
+     */
+
+    const textRange = function (range, i) {
+        return range.start(i) + '-' + range.end(i);
+    };
+    /**
+     * format a number as hex string
+     *
+     * @param {number} e The number
+     * @param {number} i the iterator
+     * @return {string} the hex formatted number as a string
+     */
+
+    const formatHexString = function (e, i) {
+        const value = e.toString(16);
+        return '00'.substring(0, 2 - value.length) + value + (i % 2 ? ' ' : '');
+    };
+    const formatAsciiString = function (e) {
+        if (e >= 0x20 && e < 0x7e) {
+            return String.fromCharCode(e);
+        }
+        return '.';
+    };
     /**
      * Creates an object for sending to a web worker modifying properties that are TypedArrays
      * into a new object with seperated properties for the buffer, byteOffset, and byteLength.
@@ -61622,3202 +38854,19875 @@
      * @function createTransferableMessage
      */
 
-
-    var createTransferableMessage = function createTransferableMessage(message) {
-      var transferable = {};
-      Object.keys(message).forEach(function (key) {
-        var value = message[key];
-
-        if (isArrayBufferView(value)) {
-          transferable[key] = {
-            bytes: value.buffer,
-            byteOffset: value.byteOffset,
-            byteLength: value.byteLength
-          };
-        } else {
-          transferable[key] = value;
-        }
-      });
-      return transferable;
-    };
-    /* global self */
-
-    /**
-     * Our web worker interface so that things can talk to aes-decrypter
-     * that will be running in a web worker. the scope is passed to this by
-     * webworkify.
-     */
-
-
-    self.onmessage = function (event) {
-      var data = event.data;
-      var encrypted = new Uint8Array(data.encrypted.bytes, data.encrypted.byteOffset, data.encrypted.byteLength);
-      var key = new Uint32Array(data.key.bytes, data.key.byteOffset, data.key.byteLength / 4);
-      var iv = new Uint32Array(data.iv.bytes, data.iv.byteOffset, data.iv.byteLength / 4);
-      /* eslint-disable no-new, handle-callback-err */
-
-      new Decrypter(encrypted, key, iv, function (err, bytes) {
-        self.postMessage(createTransferableMessage({
-          source: data.source,
-          decrypted: bytes
-        }), [bytes.buffer]);
-      });
-      /* eslint-enable */
-    };
-  }));
-  var Decrypter = factory(workerCode);
-  /* rollup-plugin-worker-factory end for worker!/Users/abarstow/videojs/http-streaming/src/decrypter-worker.js */
-
-  /**
-   * Convert the properties of an HLS track into an audioTrackKind.
-   *
-   * @private
-   */
-
-  var audioTrackKind_ = function audioTrackKind_(properties) {
-    var kind = properties["default"] ? 'main' : 'alternative';
-
-    if (properties.characteristics && properties.characteristics.indexOf('public.accessibility.describes-video') >= 0) {
-      kind = 'main-desc';
-    }
-
-    return kind;
-  };
-  /**
-   * Pause provided segment loader and playlist loader if active
-   *
-   * @param {SegmentLoader} segmentLoader
-   *        SegmentLoader to pause
-   * @param {Object} mediaType
-   *        Active media type
-   * @function stopLoaders
-   */
-
-
-  var stopLoaders = function stopLoaders(segmentLoader, mediaType) {
-    segmentLoader.abort();
-    segmentLoader.pause();
-
-    if (mediaType && mediaType.activePlaylistLoader) {
-      mediaType.activePlaylistLoader.pause();
-      mediaType.activePlaylistLoader = null;
-    }
-  };
-  /**
-   * Start loading provided segment loader and playlist loader
-   *
-   * @param {PlaylistLoader} playlistLoader
-   *        PlaylistLoader to start loading
-   * @param {Object} mediaType
-   *        Active media type
-   * @function startLoaders
-   */
-
-
-  var startLoaders = function startLoaders(playlistLoader, mediaType) {
-    // Segment loader will be started after `loadedmetadata` or `loadedplaylist` from the
-    // playlist loader
-    mediaType.activePlaylistLoader = playlistLoader;
-    playlistLoader.load();
-  };
-  /**
-   * Returns a function to be called when the media group changes. It performs a
-   * non-destructive (preserve the buffer) resync of the SegmentLoader. This is because a
-   * change of group is merely a rendition switch of the same content at another encoding,
-   * rather than a change of content, such as switching audio from English to Spanish.
-   *
-   * @param {string} type
-   *        MediaGroup type
-   * @param {Object} settings
-   *        Object containing required information for media groups
-   * @return {Function}
-   *         Handler for a non-destructive resync of SegmentLoader when the active media
-   *         group changes.
-   * @function onGroupChanged
-   */
-
-
-  var onGroupChanged = function onGroupChanged(type, settings) {
-    return function () {
-      var _settings$segmentLoad = settings.segmentLoaders,
-          segmentLoader = _settings$segmentLoad[type],
-          mainSegmentLoader = _settings$segmentLoad.main,
-          mediaType = settings.mediaTypes[type];
-      var activeTrack = mediaType.activeTrack();
-      var activeGroup = mediaType.getActiveGroup();
-      var previousActiveLoader = mediaType.activePlaylistLoader;
-      var lastGroup = mediaType.lastGroup_; // the group did not change do nothing
-
-      if (activeGroup && lastGroup && activeGroup.id === lastGroup.id) {
-        return;
-      }
-
-      mediaType.lastGroup_ = activeGroup;
-      mediaType.lastTrack_ = activeTrack;
-      stopLoaders(segmentLoader, mediaType);
-
-      if (!activeGroup || activeGroup.isMasterPlaylist) {
-        // there is no group active or active group is a main playlist and won't change
-        return;
-      }
-
-      if (!activeGroup.playlistLoader) {
-        if (previousActiveLoader) {
-          // The previous group had a playlist loader but the new active group does not
-          // this means we are switching from demuxed to muxed audio. In this case we want to
-          // do a destructive reset of the main segment loader and not restart the audio
-          // loaders.
-          mainSegmentLoader.resetEverything();
-        }
-
-        return;
-      } // Non-destructive resync
-
-
-      segmentLoader.resyncLoader();
-      startLoaders(activeGroup.playlistLoader, mediaType);
-    };
-  };
-
-  var onGroupChanging = function onGroupChanging(type, settings) {
-    return function () {
-      var segmentLoader = settings.segmentLoaders[type],
-          mediaType = settings.mediaTypes[type];
-      mediaType.lastGroup_ = null;
-      segmentLoader.abort();
-      segmentLoader.pause();
-    };
-  };
-  /**
-   * Returns a function to be called when the media track changes. It performs a
-   * destructive reset of the SegmentLoader to ensure we start loading as close to
-   * currentTime as possible.
-   *
-   * @param {string} type
-   *        MediaGroup type
-   * @param {Object} settings
-   *        Object containing required information for media groups
-   * @return {Function}
-   *         Handler for a destructive reset of SegmentLoader when the active media
-   *         track changes.
-   * @function onTrackChanged
-   */
-
-
-  var onTrackChanged = function onTrackChanged(type, settings) {
-    return function () {
-      var masterPlaylistLoader = settings.masterPlaylistLoader,
-          _settings$segmentLoad2 = settings.segmentLoaders,
-          segmentLoader = _settings$segmentLoad2[type],
-          mainSegmentLoader = _settings$segmentLoad2.main,
-          mediaType = settings.mediaTypes[type];
-      var activeTrack = mediaType.activeTrack();
-      var activeGroup = mediaType.getActiveGroup();
-      var previousActiveLoader = mediaType.activePlaylistLoader;
-      var lastTrack = mediaType.lastTrack_; // track did not change, do nothing
-
-      if (lastTrack && activeTrack && lastTrack.id === activeTrack.id) {
-        return;
-      }
-
-      mediaType.lastGroup_ = activeGroup;
-      mediaType.lastTrack_ = activeTrack;
-      stopLoaders(segmentLoader, mediaType);
-
-      if (!activeGroup) {
-        // there is no group active so we do not want to restart loaders
-        return;
-      }
-
-      if (activeGroup.isMasterPlaylist) {
-        // track did not change, do nothing
-        if (!activeTrack || !lastTrack || activeTrack.id === lastTrack.id) {
-          return;
-        }
-
-        var mpc = settings.vhs.masterPlaylistController_;
-        var newPlaylist = mpc.selectPlaylist(); // media will not change do nothing
-
-        if (mpc.media() === newPlaylist) {
-          return;
-        }
-
-        mediaType.logger_("track change. Switching master audio from " + lastTrack.id + " to " + activeTrack.id);
-        masterPlaylistLoader.pause();
-        mainSegmentLoader.resetEverything();
-        mpc.fastQualityChange_(newPlaylist);
-        return;
-      }
-
-      if (type === 'AUDIO') {
-        if (!activeGroup.playlistLoader) {
-          // when switching from demuxed audio/video to muxed audio/video (noted by no
-          // playlist loader for the audio group), we want to do a destructive reset of the
-          // main segment loader and not restart the audio loaders
-          mainSegmentLoader.setAudio(true); // don't have to worry about disabling the audio of the audio segment loader since
-          // it should be stopped
-
-          mainSegmentLoader.resetEverything();
-          return;
-        } // although the segment loader is an audio segment loader, call the setAudio
-        // function to ensure it is prepared to re-append the init segment (or handle other
-        // config changes)
-
-
-        segmentLoader.setAudio(true);
-        mainSegmentLoader.setAudio(false);
-      }
-
-      if (previousActiveLoader === activeGroup.playlistLoader) {
-        // Nothing has actually changed. This can happen because track change events can fire
-        // multiple times for a "single" change. One for enabling the new active track, and
-        // one for disabling the track that was active
-        startLoaders(activeGroup.playlistLoader, mediaType);
-        return;
-      }
-
-      if (segmentLoader.track) {
-        // For WebVTT, set the new text track in the segmentloader
-        segmentLoader.track(activeTrack);
-      } // destructive reset
-
-
-      segmentLoader.resetEverything();
-      startLoaders(activeGroup.playlistLoader, mediaType);
-    };
-  };
-
-  var onError = {
-    /**
-     * Returns a function to be called when a SegmentLoader or PlaylistLoader encounters
-     * an error.
-     *
-     * @param {string} type
-     *        MediaGroup type
-     * @param {Object} settings
-     *        Object containing required information for media groups
-     * @return {Function}
-     *         Error handler. Logs warning (or error if the playlist is blacklisted) to
-     *         console and switches back to default audio track.
-     * @function onError.AUDIO
-     */
-    AUDIO: function AUDIO(type, settings) {
-      return function () {
-        var segmentLoader = settings.segmentLoaders[type],
-            mediaType = settings.mediaTypes[type],
-            blacklistCurrentPlaylist = settings.blacklistCurrentPlaylist;
-        stopLoaders(segmentLoader, mediaType); // switch back to default audio track
-
-        var activeTrack = mediaType.activeTrack();
-        var activeGroup = mediaType.activeGroup();
-        var id = (activeGroup.filter(function (group) {
-          return group["default"];
-        })[0] || activeGroup[0]).id;
-        var defaultTrack = mediaType.tracks[id];
-
-        if (activeTrack === defaultTrack) {
-          // Default track encountered an error. All we can do now is blacklist the current
-          // rendition and hope another will switch audio groups
-          blacklistCurrentPlaylist({
-            message: 'Problem encountered loading the default audio track.'
-          });
-          return;
-        }
-
-        videojs.log.warn('Problem encountered loading the alternate audio track.' + 'Switching back to default.');
-
-        for (var trackId in mediaType.tracks) {
-          mediaType.tracks[trackId].enabled = mediaType.tracks[trackId] === defaultTrack;
-        }
-
-        mediaType.onTrackChanged();
-      };
-    },
-
-    /**
-     * Returns a function to be called when a SegmentLoader or PlaylistLoader encounters
-     * an error.
-     *
-     * @param {string} type
-     *        MediaGroup type
-     * @param {Object} settings
-     *        Object containing required information for media groups
-     * @return {Function}
-     *         Error handler. Logs warning to console and disables the active subtitle track
-     * @function onError.SUBTITLES
-     */
-    SUBTITLES: function SUBTITLES(type, settings) {
-      return function () {
-        var segmentLoader = settings.segmentLoaders[type],
-            mediaType = settings.mediaTypes[type];
-        videojs.log.warn('Problem encountered loading the subtitle track.' + 'Disabling subtitle track.');
-        stopLoaders(segmentLoader, mediaType);
-        var track = mediaType.activeTrack();
-
-        if (track) {
-          track.mode = 'disabled';
-        }
-
-        mediaType.onTrackChanged();
-      };
-    }
-  };
-  var setupListeners = {
-    /**
-     * Setup event listeners for audio playlist loader
-     *
-     * @param {string} type
-     *        MediaGroup type
-     * @param {PlaylistLoader|null} playlistLoader
-     *        PlaylistLoader to register listeners on
-     * @param {Object} settings
-     *        Object containing required information for media groups
-     * @function setupListeners.AUDIO
-     */
-    AUDIO: function AUDIO(type, playlistLoader, settings) {
-      if (!playlistLoader) {
-        // no playlist loader means audio will be muxed with the video
-        return;
-      }
-
-      var tech = settings.tech,
-          requestOptions = settings.requestOptions,
-          segmentLoader = settings.segmentLoaders[type];
-      playlistLoader.on('loadedmetadata', function () {
-        var media = playlistLoader.media();
-        segmentLoader.playlist(media, requestOptions); // if the video is already playing, or if this isn't a live video and preload
-        // permits, start downloading segments
-
-        if (!tech.paused() || media.endList && tech.preload() !== 'none') {
-          segmentLoader.load();
-        }
-      });
-      playlistLoader.on('loadedplaylist', function () {
-        segmentLoader.playlist(playlistLoader.media(), requestOptions); // If the player isn't paused, ensure that the segment loader is running
-
-        if (!tech.paused()) {
-          segmentLoader.load();
-        }
-      });
-      playlistLoader.on('error', onError[type](type, settings));
-    },
-
-    /**
-     * Setup event listeners for subtitle playlist loader
-     *
-     * @param {string} type
-     *        MediaGroup type
-     * @param {PlaylistLoader|null} playlistLoader
-     *        PlaylistLoader to register listeners on
-     * @param {Object} settings
-     *        Object containing required information for media groups
-     * @function setupListeners.SUBTITLES
-     */
-    SUBTITLES: function SUBTITLES(type, playlistLoader, settings) {
-      var tech = settings.tech,
-          requestOptions = settings.requestOptions,
-          segmentLoader = settings.segmentLoaders[type],
-          mediaType = settings.mediaTypes[type];
-      playlistLoader.on('loadedmetadata', function () {
-        var media = playlistLoader.media();
-        segmentLoader.playlist(media, requestOptions);
-        segmentLoader.track(mediaType.activeTrack()); // if the video is already playing, or if this isn't a live video and preload
-        // permits, start downloading segments
-
-        if (!tech.paused() || media.endList && tech.preload() !== 'none') {
-          segmentLoader.load();
-        }
-      });
-      playlistLoader.on('loadedplaylist', function () {
-        segmentLoader.playlist(playlistLoader.media(), requestOptions); // If the player isn't paused, ensure that the segment loader is running
-
-        if (!tech.paused()) {
-          segmentLoader.load();
-        }
-      });
-      playlistLoader.on('error', onError[type](type, settings));
-    }
-  };
-  var initialize = {
-    /**
-     * Setup PlaylistLoaders and AudioTracks for the audio groups
-     *
-     * @param {string} type
-     *        MediaGroup type
-     * @param {Object} settings
-     *        Object containing required information for media groups
-     * @function initialize.AUDIO
-     */
-    'AUDIO': function AUDIO(type, settings) {
-      var vhs = settings.vhs,
-          sourceType = settings.sourceType,
-          segmentLoader = settings.segmentLoaders[type],
-          requestOptions = settings.requestOptions,
-          mediaGroups = settings.master.mediaGroups,
-          _settings$mediaTypes$ = settings.mediaTypes[type],
-          groups = _settings$mediaTypes$.groups,
-          tracks = _settings$mediaTypes$.tracks,
-          logger_ = _settings$mediaTypes$.logger_,
-          masterPlaylistLoader = settings.masterPlaylistLoader;
-      var audioOnlyMaster = isAudioOnly(masterPlaylistLoader.master); // force a default if we have none
-
-      if (!mediaGroups[type] || Object.keys(mediaGroups[type]).length === 0) {
-        mediaGroups[type] = {
-          main: {
-            "default": {
-              "default": true
+    const createTransferableMessage = function (message) {
+        const transferable = {};
+        Object.keys(message).forEach(key => {
+            const value = message[key];
+            if (isArrayBufferView(value)) {
+                transferable[key] = {
+                    bytes: value.buffer,
+                    byteOffset: value.byteOffset,
+                    byteLength: value.byteLength
+                };
+            } else {
+                transferable[key] = value;
             }
-          }
+        });
+        return transferable;
+    };
+    /**
+     * Returns a unique string identifier for a media initialization
+     * segment.
+     *
+     * @param {Object} initSegment
+     *        the init segment object.
+     *
+     * @return {string} the generated init segment id
+     */
+
+    const initSegmentId = function (initSegment) {
+        const byterange = initSegment.byterange || {
+            length: Infinity,
+            offset: 0
         };
-
-        if (audioOnlyMaster) {
-          mediaGroups[type].main["default"].playlists = masterPlaylistLoader.master.playlists;
-        }
-      }
-
-      for (var groupId in mediaGroups[type]) {
-        if (!groups[groupId]) {
-          groups[groupId] = [];
-        }
-
-        for (var variantLabel in mediaGroups[type][groupId]) {
-          var properties = mediaGroups[type][groupId][variantLabel];
-          var playlistLoader = void 0;
-
-          if (audioOnlyMaster) {
-            logger_("AUDIO group '" + groupId + "' label '" + variantLabel + "' is a master playlist");
-            properties.isMasterPlaylist = true;
-            playlistLoader = null; // if vhs-json was provided as the source, and the media playlist was resolved,
-            // use the resolved media playlist object
-          } else if (sourceType === 'vhs-json' && properties.playlists) {
-            playlistLoader = new PlaylistLoader(properties.playlists[0], vhs, requestOptions);
-          } else if (properties.resolvedUri) {
-            playlistLoader = new PlaylistLoader(properties.resolvedUri, vhs, requestOptions); // TODO: dash isn't the only type with properties.playlists
-            // should we even have properties.playlists in this check.
-          } else if (properties.playlists && sourceType === 'dash') {
-            playlistLoader = new DashPlaylistLoader(properties.playlists[0], vhs, requestOptions, masterPlaylistLoader);
-          } else {
-            // no resolvedUri means the audio is muxed with the video when using this
-            // audio track
-            playlistLoader = null;
-          }
-
-          properties = videojs.mergeOptions({
-            id: variantLabel,
-            playlistLoader: playlistLoader
-          }, properties);
-          setupListeners[type](type, properties.playlistLoader, settings);
-          groups[groupId].push(properties);
-
-          if (typeof tracks[variantLabel] === 'undefined') {
-            var track = new videojs.AudioTrack({
-              id: variantLabel,
-              kind: audioTrackKind_(properties),
-              enabled: false,
-              language: properties.language,
-              "default": properties["default"],
-              label: variantLabel
-            });
-            tracks[variantLabel] = track;
-          }
-        }
-      } // setup single error event handler for the segment loader
-
-
-      segmentLoader.on('error', onError[type](type, settings));
-    },
-
+        return [byterange.length, byterange.offset, initSegment.resolvedUri].join(',');
+    };
     /**
-     * Setup PlaylistLoaders and TextTracks for the subtitle groups
+     * Returns a unique string identifier for a media segment key.
      *
-     * @param {string} type
-     *        MediaGroup type
-     * @param {Object} settings
-     *        Object containing required information for media groups
-     * @function initialize.SUBTITLES
+     * @param {Object} key the encryption key
+     * @return {string} the unique id for the media segment key.
      */
-    'SUBTITLES': function SUBTITLES(type, settings) {
-      var tech = settings.tech,
-          vhs = settings.vhs,
-          sourceType = settings.sourceType,
-          segmentLoader = settings.segmentLoaders[type],
-          requestOptions = settings.requestOptions,
-          mediaGroups = settings.master.mediaGroups,
-          _settings$mediaTypes$2 = settings.mediaTypes[type],
-          groups = _settings$mediaTypes$2.groups,
-          tracks = _settings$mediaTypes$2.tracks,
-          masterPlaylistLoader = settings.masterPlaylistLoader;
 
-      for (var groupId in mediaGroups[type]) {
-        if (!groups[groupId]) {
-          groups[groupId] = [];
+    const segmentKeyId = function (key) {
+        return key.resolvedUri;
+    };
+    /**
+     * utils to help dump binary data to the console
+     *
+     * @param {Array|TypedArray} data
+     *        data to dump to a string
+     *
+     * @return {string} the data as a hex string.
+     */
+
+    const hexDump = data => {
+        const bytes = Array.prototype.slice.call(data);
+        const step = 16;
+        let result = '';
+        let hex;
+        let ascii;
+        for (let j = 0; j < bytes.length / step; j++) {
+            hex = bytes.slice(j * step, j * step + step).map(formatHexString).join('');
+            ascii = bytes.slice(j * step, j * step + step).map(formatAsciiString).join('');
+            result += hex + ' ' + ascii + '\n';
         }
+        return result;
+    };
+    const tagDump = ({
+                         bytes
+                     }) => hexDump(bytes);
+    const textRanges = ranges => {
+        let result = '';
+        let i;
+        for (i = 0; i < ranges.length; i++) {
+            result += textRange(ranges, i) + ' ';
+        }
+        return result;
+    };
+    var utils = /*#__PURE__*/Object.freeze({
+        __proto__: null,
+        createTransferableMessage: createTransferableMessage,
+        initSegmentId: initSegmentId,
+        segmentKeyId: segmentKeyId,
+        hexDump: hexDump,
+        tagDump: tagDump,
+        textRanges: textRanges
+    });
 
-        for (var variantLabel in mediaGroups[type][groupId]) {
-          if (mediaGroups[type][groupId][variantLabel].forced) {
-            // Subtitle playlists with the forced attribute are not selectable in Safari.
-            // According to Apple's HLS Authoring Specification:
-            //   If content has forced subtitles and regular subtitles in a given language,
-            //   the regular subtitles track in that language MUST contain both the forced
-            //   subtitles and the regular subtitles for that language.
-            // Because of this requirement and that Safari does not add forced subtitles,
-            // forced subtitles are skipped here to maintain consistent experience across
-            // all platforms
-            continue;
-          }
+    // TODO handle fmp4 case where the timing info is accurate and doesn't involve transmux
+    // 25% was arbitrarily chosen, and may need to be refined over time.
 
-          var properties = mediaGroups[type][groupId][variantLabel];
-          var playlistLoader = void 0;
+    const SEGMENT_END_FUDGE_PERCENT = 0.25;
+    /**
+     * Converts a player time (any time that can be gotten/set from player.currentTime(),
+     * e.g., any time within player.seekable().start(0) to player.seekable().end(0)) to a
+     * program time (any time referencing the real world (e.g., EXT-X-PROGRAM-DATE-TIME)).
+     *
+     * The containing segment is required as the EXT-X-PROGRAM-DATE-TIME serves as an "anchor
+     * point" (a point where we have a mapping from program time to player time, with player
+     * time being the post transmux start of the segment).
+     *
+     * For more details, see [this doc](../../docs/program-time-from-player-time.md).
+     *
+     * @param {number} playerTime the player time
+     * @param {Object} segment the segment which contains the player time
+     * @return {Date} program time
+     */
 
-          if (sourceType === 'hls') {
-            playlistLoader = new PlaylistLoader(properties.resolvedUri, vhs, requestOptions);
-          } else if (sourceType === 'dash') {
-            var playlists = properties.playlists.filter(function (p) {
-              return p.excludeUntil !== Infinity;
-            });
+    const playerTimeToProgramTime = (playerTime, segment) => {
+        if (!segment.dateTimeObject) {
+            // Can't convert without an "anchor point" for the program time (i.e., a time that can
+            // be used to map the start of a segment with a real world time).
+            return null;
+        }
+        const transmuxerPrependedSeconds = segment.videoTimingInfo.transmuxerPrependedSeconds;
+        const transmuxedStart = segment.videoTimingInfo.transmuxedPresentationStart; // get the start of the content from before old content is prepended
 
-            if (!playlists.length) {
-              return;
+        const startOfSegment = transmuxedStart + transmuxerPrependedSeconds;
+        const offsetFromSegmentStart = playerTime - startOfSegment;
+        return new Date(segment.dateTimeObject.getTime() + offsetFromSegmentStart * 1000);
+    };
+    const originalSegmentVideoDuration = videoTimingInfo => {
+        return videoTimingInfo.transmuxedPresentationEnd - videoTimingInfo.transmuxedPresentationStart - videoTimingInfo.transmuxerPrependedSeconds;
+    };
+    /**
+     * Finds a segment that contains the time requested given as an ISO-8601 string. The
+     * returned segment might be an estimate or an accurate match.
+     *
+     * @param {string} programTime The ISO-8601 programTime to find a match for
+     * @param {Object} playlist A playlist object to search within
+     */
+
+    const findSegmentForProgramTime = (programTime, playlist) => {
+        // Assumptions:
+        //  - verifyProgramDateTimeTags has already been run
+        //  - live streams have been started
+        let dateTimeObject;
+        try {
+            dateTimeObject = new Date(programTime);
+        } catch (e) {
+            return null;
+        }
+        if (!playlist || !playlist.segments || playlist.segments.length === 0) {
+            return null;
+        }
+        let segment = playlist.segments[0];
+        if (dateTimeObject < segment.dateTimeObject) {
+            // Requested time is before stream start.
+            return null;
+        }
+        for (let i = 0; i < playlist.segments.length - 1; i++) {
+            segment = playlist.segments[i];
+            const nextSegmentStart = playlist.segments[i + 1].dateTimeObject;
+            if (dateTimeObject < nextSegmentStart) {
+                break;
             }
-
-            playlistLoader = new DashPlaylistLoader(properties.playlists[0], vhs, requestOptions, masterPlaylistLoader);
-          } else if (sourceType === 'vhs-json') {
-            playlistLoader = new PlaylistLoader( // if the vhs-json object included the media playlist, use the media playlist
-            // as provided, otherwise use the resolved URI to load the playlist
-            properties.playlists ? properties.playlists[0] : properties.resolvedUri, vhs, requestOptions);
-          }
-
-          properties = videojs.mergeOptions({
-            id: variantLabel,
-            playlistLoader: playlistLoader
-          }, properties);
-          setupListeners[type](type, properties.playlistLoader, settings);
-          groups[groupId].push(properties);
-
-          if (typeof tracks[variantLabel] === 'undefined') {
-            var track = tech.addRemoteTextTrack({
-              id: variantLabel,
-              kind: 'subtitles',
-              "default": properties["default"] && properties.autoselect,
-              language: properties.language,
-              label: variantLabel
-            }, false).track;
-            tracks[variantLabel] = track;
-          }
         }
-      } // setup single error event handler for the segment loader
-
-
-      segmentLoader.on('error', onError[type](type, settings));
-    },
-
-    /**
-     * Setup TextTracks for the closed-caption groups
-     *
-     * @param {String} type
-     *        MediaGroup type
-     * @param {Object} settings
-     *        Object containing required information for media groups
-     * @function initialize['CLOSED-CAPTIONS']
-     */
-    'CLOSED-CAPTIONS': function CLOSEDCAPTIONS(type, settings) {
-      var tech = settings.tech,
-          mediaGroups = settings.master.mediaGroups,
-          _settings$mediaTypes$3 = settings.mediaTypes[type],
-          groups = _settings$mediaTypes$3.groups,
-          tracks = _settings$mediaTypes$3.tracks;
-
-      for (var groupId in mediaGroups[type]) {
-        if (!groups[groupId]) {
-          groups[groupId] = [];
+        const lastSegment = playlist.segments[playlist.segments.length - 1];
+        const lastSegmentStart = lastSegment.dateTimeObject;
+        const lastSegmentDuration = lastSegment.videoTimingInfo ? originalSegmentVideoDuration(lastSegment.videoTimingInfo) : lastSegment.duration + lastSegment.duration * SEGMENT_END_FUDGE_PERCENT;
+        const lastSegmentEnd = new Date(lastSegmentStart.getTime() + lastSegmentDuration * 1000);
+        if (dateTimeObject > lastSegmentEnd) {
+            // Beyond the end of the stream, or our best guess of the end of the stream.
+            return null;
         }
-
-        for (var variantLabel in mediaGroups[type][groupId]) {
-          var properties = mediaGroups[type][groupId][variantLabel]; // Look for either 608 (CCn) or 708 (SERVICEn) caption services
-
-          if (!/^(?:CC|SERVICE)/.test(properties.instreamId)) {
-            continue;
-          }
-
-          var captionServices = tech.options_.vhs && tech.options_.vhs.captionServices || {};
-          var newProps = {
-            label: variantLabel,
-            language: properties.language,
-            instreamId: properties.instreamId,
-            "default": properties["default"] && properties.autoselect
-          };
-
-          if (captionServices[newProps.instreamId]) {
-            newProps = videojs.mergeOptions(newProps, captionServices[newProps.instreamId]);
-          }
-
-          if (newProps["default"] === undefined) {
-            delete newProps["default"];
-          } // No PlaylistLoader is required for Closed-Captions because the captions are
-          // embedded within the video stream
-
-
-          groups[groupId].push(videojs.mergeOptions({
-            id: variantLabel
-          }, properties));
-
-          if (typeof tracks[variantLabel] === 'undefined') {
-            var track = tech.addRemoteTextTrack({
-              id: newProps.instreamId,
-              kind: 'captions',
-              "default": newProps["default"],
-              language: newProps.language,
-              label: newProps.label
-            }, false).track;
-            tracks[variantLabel] = track;
-          }
+        if (dateTimeObject > lastSegmentStart) {
+            segment = lastSegment;
         }
-      }
-    }
-  };
-
-  var groupMatch = function groupMatch(list, media) {
-    for (var i = 0; i < list.length; i++) {
-      if (playlistMatch(media, list[i])) {
-        return true;
-      }
-
-      if (list[i].playlists && groupMatch(list[i].playlists, media)) {
-        return true;
-      }
-    }
-
-    return false;
-  };
-  /**
-   * Returns a function used to get the active group of the provided type
-   *
-   * @param {string} type
-   *        MediaGroup type
-   * @param {Object} settings
-   *        Object containing required information for media groups
-   * @return {Function}
-   *         Function that returns the active media group for the provided type. Takes an
-   *         optional parameter {TextTrack} track. If no track is provided, a list of all
-   *         variants in the group, otherwise the variant corresponding to the provided
-   *         track is returned.
-   * @function activeGroup
-   */
-
-
-  var activeGroup = function activeGroup(type, settings) {
-    return function (track) {
-      var masterPlaylistLoader = settings.masterPlaylistLoader,
-          groups = settings.mediaTypes[type].groups;
-      var media = masterPlaylistLoader.media();
-
-      if (!media) {
-        return null;
-      }
-
-      var variants = null; // set to variants to main media active group
-
-      if (media.attributes[type]) {
-        variants = groups[media.attributes[type]];
-      }
-
-      var groupKeys = Object.keys(groups);
-
-      if (!variants) {
-        // find the masterPlaylistLoader media
-        // that is in a media group if we are dealing
-        // with audio only
-        if (type === 'AUDIO' && groupKeys.length > 1 && isAudioOnly(settings.master)) {
-          for (var i = 0; i < groupKeys.length; i++) {
-            var groupPropertyList = groups[groupKeys[i]];
-
-            if (groupMatch(groupPropertyList, media)) {
-              variants = groupPropertyList;
-              break;
-            }
-          } // use the main group if it exists
-
-        } else if (groups.main) {
-          variants = groups.main; // only one group, use that one
-        } else if (groupKeys.length === 1) {
-          variants = groups[groupKeys[0]];
-        }
-      }
-
-      if (typeof track === 'undefined') {
-        return variants;
-      }
-
-      if (track === null || !variants) {
-        // An active track was specified so a corresponding group is expected. track === null
-        // means no track is currently active so there is no corresponding group
-        return null;
-      }
-
-      return variants.filter(function (props) {
-        return props.id === track.id;
-      })[0] || null;
-    };
-  };
-
-  var activeTrack = {
-    /**
-     * Returns a function used to get the active track of type provided
-     *
-     * @param {string} type
-     *        MediaGroup type
-     * @param {Object} settings
-     *        Object containing required information for media groups
-     * @return {Function}
-     *         Function that returns the active media track for the provided type. Returns
-     *         null if no track is active
-     * @function activeTrack.AUDIO
-     */
-    AUDIO: function AUDIO(type, settings) {
-      return function () {
-        var tracks = settings.mediaTypes[type].tracks;
-
-        for (var id in tracks) {
-          if (tracks[id].enabled) {
-            return tracks[id];
-          }
-        }
-
-        return null;
-      };
-    },
-
-    /**
-     * Returns a function used to get the active track of type provided
-     *
-     * @param {string} type
-     *        MediaGroup type
-     * @param {Object} settings
-     *        Object containing required information for media groups
-     * @return {Function}
-     *         Function that returns the active media track for the provided type. Returns
-     *         null if no track is active
-     * @function activeTrack.SUBTITLES
-     */
-    SUBTITLES: function SUBTITLES(type, settings) {
-      return function () {
-        var tracks = settings.mediaTypes[type].tracks;
-
-        for (var id in tracks) {
-          if (tracks[id].mode === 'showing' || tracks[id].mode === 'hidden') {
-            return tracks[id];
-          }
-        }
-
-        return null;
-      };
-    }
-  };
-
-  var getActiveGroup = function getActiveGroup(type, _ref) {
-    var mediaTypes = _ref.mediaTypes;
-    return function () {
-      var activeTrack_ = mediaTypes[type].activeTrack();
-
-      if (!activeTrack_) {
-        return null;
-      }
-
-      return mediaTypes[type].activeGroup(activeTrack_);
-    };
-  };
-  /**
-   * Setup PlaylistLoaders and Tracks for media groups (Audio, Subtitles,
-   * Closed-Captions) specified in the master manifest.
-   *
-   * @param {Object} settings
-   *        Object containing required information for setting up the media groups
-   * @param {Tech} settings.tech
-   *        The tech of the player
-   * @param {Object} settings.requestOptions
-   *        XHR request options used by the segment loaders
-   * @param {PlaylistLoader} settings.masterPlaylistLoader
-   *        PlaylistLoader for the master source
-   * @param {VhsHandler} settings.vhs
-   *        VHS SourceHandler
-   * @param {Object} settings.master
-   *        The parsed master manifest
-   * @param {Object} settings.mediaTypes
-   *        Object to store the loaders, tracks, and utility methods for each media type
-   * @param {Function} settings.blacklistCurrentPlaylist
-   *        Blacklists the current rendition and forces a rendition switch.
-   * @function setupMediaGroups
-   */
-
-
-  var setupMediaGroups = function setupMediaGroups(settings) {
-    ['AUDIO', 'SUBTITLES', 'CLOSED-CAPTIONS'].forEach(function (type) {
-      initialize[type](type, settings);
-    });
-    var mediaTypes = settings.mediaTypes,
-        masterPlaylistLoader = settings.masterPlaylistLoader,
-        tech = settings.tech,
-        vhs = settings.vhs,
-        _settings$segmentLoad3 = settings.segmentLoaders,
-        audioSegmentLoader = _settings$segmentLoad3['AUDIO'],
-        mainSegmentLoader = _settings$segmentLoad3.main; // setup active group and track getters and change event handlers
-
-    ['AUDIO', 'SUBTITLES'].forEach(function (type) {
-      mediaTypes[type].activeGroup = activeGroup(type, settings);
-      mediaTypes[type].activeTrack = activeTrack[type](type, settings);
-      mediaTypes[type].onGroupChanged = onGroupChanged(type, settings);
-      mediaTypes[type].onGroupChanging = onGroupChanging(type, settings);
-      mediaTypes[type].onTrackChanged = onTrackChanged(type, settings);
-      mediaTypes[type].getActiveGroup = getActiveGroup(type, settings);
-    }); // DO NOT enable the default subtitle or caption track.
-    // DO enable the default audio track
-
-    var audioGroup = mediaTypes.AUDIO.activeGroup();
-
-    if (audioGroup) {
-      var groupId = (audioGroup.filter(function (group) {
-        return group["default"];
-      })[0] || audioGroup[0]).id;
-      mediaTypes.AUDIO.tracks[groupId].enabled = true;
-      mediaTypes.AUDIO.onGroupChanged();
-      mediaTypes.AUDIO.onTrackChanged();
-      var activeAudioGroup = mediaTypes.AUDIO.getActiveGroup(); // a similar check for handling setAudio on each loader is run again each time the
-      // track is changed, but needs to be handled here since the track may not be considered
-      // changed on the first call to onTrackChanged
-
-      if (!activeAudioGroup.playlistLoader) {
-        // either audio is muxed with video or the stream is audio only
-        mainSegmentLoader.setAudio(true);
-      } else {
-        // audio is demuxed
-        mainSegmentLoader.setAudio(false);
-        audioSegmentLoader.setAudio(true);
-      }
-    }
-
-    masterPlaylistLoader.on('mediachange', function () {
-      ['AUDIO', 'SUBTITLES'].forEach(function (type) {
-        return mediaTypes[type].onGroupChanged();
-      });
-    });
-    masterPlaylistLoader.on('mediachanging', function () {
-      ['AUDIO', 'SUBTITLES'].forEach(function (type) {
-        return mediaTypes[type].onGroupChanging();
-      });
-    }); // custom audio track change event handler for usage event
-
-    var onAudioTrackChanged = function onAudioTrackChanged() {
-      mediaTypes.AUDIO.onTrackChanged();
-      tech.trigger({
-        type: 'usage',
-        name: 'vhs-audio-change'
-      });
-      tech.trigger({
-        type: 'usage',
-        name: 'hls-audio-change'
-      });
-    };
-
-    tech.audioTracks().addEventListener('change', onAudioTrackChanged);
-    tech.remoteTextTracks().addEventListener('change', mediaTypes.SUBTITLES.onTrackChanged);
-    vhs.on('dispose', function () {
-      tech.audioTracks().removeEventListener('change', onAudioTrackChanged);
-      tech.remoteTextTracks().removeEventListener('change', mediaTypes.SUBTITLES.onTrackChanged);
-    }); // clear existing audio tracks and add the ones we just created
-
-    tech.clearTracks('audio');
-
-    for (var id in mediaTypes.AUDIO.tracks) {
-      tech.audioTracks().addTrack(mediaTypes.AUDIO.tracks[id]);
-    }
-  };
-  /**
-   * Creates skeleton object used to store the loaders, tracks, and utility methods for each
-   * media type
-   *
-   * @return {Object}
-   *         Object to store the loaders, tracks, and utility methods for each media type
-   * @function createMediaTypes
-   */
-
-
-  var createMediaTypes = function createMediaTypes() {
-    var mediaTypes = {};
-    ['AUDIO', 'SUBTITLES', 'CLOSED-CAPTIONS'].forEach(function (type) {
-      mediaTypes[type] = {
-        groups: {},
-        tracks: {},
-        activePlaylistLoader: null,
-        activeGroup: noop,
-        activeTrack: noop,
-        getActiveGroup: noop,
-        onGroupChanged: noop,
-        onTrackChanged: noop,
-        lastTrack_: null,
-        logger_: logger("MediaGroups[" + type + "]")
-      };
-    });
-    return mediaTypes;
-  };
-
-  var ABORT_EARLY_BLACKLIST_SECONDS = 60 * 2;
-  var Vhs$1; // SegmentLoader stats that need to have each loader's
-  // values summed to calculate the final value
-
-  var loaderStats = ['mediaRequests', 'mediaRequestsAborted', 'mediaRequestsTimedout', 'mediaRequestsErrored', 'mediaTransferDuration', 'mediaBytesTransferred', 'mediaAppends'];
-
-  var sumLoaderStat = function sumLoaderStat(stat) {
-    return this.audioSegmentLoader_[stat] + this.mainSegmentLoader_[stat];
-  };
-
-  var shouldSwitchToMedia = function shouldSwitchToMedia(_ref) {
-    var currentPlaylist = _ref.currentPlaylist,
-        buffered = _ref.buffered,
-        currentTime = _ref.currentTime,
-        nextPlaylist = _ref.nextPlaylist,
-        bufferLowWaterLine = _ref.bufferLowWaterLine,
-        bufferHighWaterLine = _ref.bufferHighWaterLine,
-        duration = _ref.duration,
-        experimentalBufferBasedABR = _ref.experimentalBufferBasedABR,
-        log = _ref.log; // we have no other playlist to switch to
-
-    if (!nextPlaylist) {
-      videojs.log.warn('We received no playlist to switch to. Please check your stream.');
-      return false;
-    }
-
-    var sharedLogLine = "allowing switch " + (currentPlaylist && currentPlaylist.id || 'null') + " -> " + nextPlaylist.id;
-
-    if (!currentPlaylist) {
-      log(sharedLogLine + " as current playlist is not set");
-      return true;
-    } // no need to switch if playlist is the same
-
-
-    if (nextPlaylist.id === currentPlaylist.id) {
-      return false;
-    } // determine if current time is in a buffered range.
-
-
-    var isBuffered = Boolean(findRange(buffered, currentTime).length); // If the playlist is live, then we want to not take low water line into account.
-    // This is because in LIVE, the player plays 3 segments from the end of the
-    // playlist, and if `BUFFER_LOW_WATER_LINE` is greater than the duration availble
-    // in those segments, a viewer will never experience a rendition upswitch.
-
-    if (!currentPlaylist.endList) {
-      // For LLHLS live streams, don't switch renditions before playback has started, as it almost
-      // doubles the time to first playback.
-      if (!isBuffered && typeof currentPlaylist.partTargetDuration === 'number') {
-        log("not " + sharedLogLine + " as current playlist is live llhls, but currentTime isn't in buffered.");
-        return false;
-      }
-
-      log(sharedLogLine + " as current playlist is live");
-      return true;
-    }
-
-    var forwardBuffer = timeAheadOf(buffered, currentTime);
-    var maxBufferLowWaterLine = experimentalBufferBasedABR ? Config.EXPERIMENTAL_MAX_BUFFER_LOW_WATER_LINE : Config.MAX_BUFFER_LOW_WATER_LINE; // For the same reason as LIVE, we ignore the low water line when the VOD
-    // duration is below the max potential low water line
-
-    if (duration < maxBufferLowWaterLine) {
-      log(sharedLogLine + " as duration < max low water line (" + duration + " < " + maxBufferLowWaterLine + ")");
-      return true;
-    }
-
-    var nextBandwidth = nextPlaylist.attributes.BANDWIDTH;
-    var currBandwidth = currentPlaylist.attributes.BANDWIDTH; // when switching down, if our buffer is lower than the high water line,
-    // we can switch down
-
-    if (nextBandwidth < currBandwidth && (!experimentalBufferBasedABR || forwardBuffer < bufferHighWaterLine)) {
-      var logLine = sharedLogLine + " as next bandwidth < current bandwidth (" + nextBandwidth + " < " + currBandwidth + ")";
-
-      if (experimentalBufferBasedABR) {
-        logLine += " and forwardBuffer < bufferHighWaterLine (" + forwardBuffer + " < " + bufferHighWaterLine + ")";
-      }
-
-      log(logLine);
-      return true;
-    } // and if our buffer is higher than the low water line,
-    // we can switch up
-
-
-    if ((!experimentalBufferBasedABR || nextBandwidth > currBandwidth) && forwardBuffer >= bufferLowWaterLine) {
-      var _logLine = sharedLogLine + " as forwardBuffer >= bufferLowWaterLine (" + forwardBuffer + " >= " + bufferLowWaterLine + ")";
-
-      if (experimentalBufferBasedABR) {
-        _logLine += " and next bandwidth > current bandwidth (" + nextBandwidth + " > " + currBandwidth + ")";
-      }
-
-      log(_logLine);
-      return true;
-    }
-
-    log("not " + sharedLogLine + " as no switching criteria met");
-    return false;
-  };
-  /**
-   * the master playlist controller controller all interactons
-   * between playlists and segmentloaders. At this time this mainly
-   * involves a master playlist and a series of audio playlists
-   * if they are available
-   *
-   * @class MasterPlaylistController
-   * @extends videojs.EventTarget
-   */
-
-
-  var MasterPlaylistController = /*#__PURE__*/function (_videojs$EventTarget) {
-    inheritsLoose(MasterPlaylistController, _videojs$EventTarget);
-
-    function MasterPlaylistController(options) {
-      var _this;
-
-      _this = _videojs$EventTarget.call(this) || this;
-      var src = options.src,
-          handleManifestRedirects = options.handleManifestRedirects,
-          withCredentials = options.withCredentials,
-          tech = options.tech,
-          bandwidth = options.bandwidth,
-          externVhs = options.externVhs,
-          useCueTags = options.useCueTags,
-          blacklistDuration = options.blacklistDuration,
-          enableLowInitialPlaylist = options.enableLowInitialPlaylist,
-          sourceType = options.sourceType,
-          cacheEncryptionKeys = options.cacheEncryptionKeys,
-          experimentalBufferBasedABR = options.experimentalBufferBasedABR,
-          experimentalLeastPixelDiffSelector = options.experimentalLeastPixelDiffSelector,
-          captionServices = options.captionServices;
-
-      if (!src) {
-        throw new Error('A non-empty playlist URL or JSON manifest string is required');
-      }
-
-      var maxPlaylistRetries = options.maxPlaylistRetries;
-
-      if (maxPlaylistRetries === null || typeof maxPlaylistRetries === 'undefined') {
-        maxPlaylistRetries = Infinity;
-      }
-
-      Vhs$1 = externVhs;
-      _this.experimentalBufferBasedABR = Boolean(experimentalBufferBasedABR);
-      _this.experimentalLeastPixelDiffSelector = Boolean(experimentalLeastPixelDiffSelector);
-      _this.withCredentials = withCredentials;
-      _this.tech_ = tech;
-      _this.vhs_ = tech.vhs;
-      _this.sourceType_ = sourceType;
-      _this.useCueTags_ = useCueTags;
-      _this.blacklistDuration = blacklistDuration;
-      _this.maxPlaylistRetries = maxPlaylistRetries;
-      _this.enableLowInitialPlaylist = enableLowInitialPlaylist;
-
-      if (_this.useCueTags_) {
-        _this.cueTagsTrack_ = _this.tech_.addTextTrack('metadata', 'ad-cues');
-        _this.cueTagsTrack_.inBandMetadataTrackDispatchType = '';
-      }
-
-      _this.requestOptions_ = {
-        withCredentials: withCredentials,
-        handleManifestRedirects: handleManifestRedirects,
-        maxPlaylistRetries: maxPlaylistRetries,
-        timeout: null
-      };
-
-      _this.on('error', _this.pauseLoading);
-
-      _this.mediaTypes_ = createMediaTypes();
-      _this.mediaSource = new window.MediaSource();
-      _this.handleDurationChange_ = _this.handleDurationChange_.bind(assertThisInitialized(_this));
-      _this.handleSourceOpen_ = _this.handleSourceOpen_.bind(assertThisInitialized(_this));
-      _this.handleSourceEnded_ = _this.handleSourceEnded_.bind(assertThisInitialized(_this));
-
-      _this.mediaSource.addEventListener('durationchange', _this.handleDurationChange_); // load the media source into the player
-
-
-      _this.mediaSource.addEventListener('sourceopen', _this.handleSourceOpen_);
-
-      _this.mediaSource.addEventListener('sourceended', _this.handleSourceEnded_); // we don't have to handle sourceclose since dispose will handle termination of
-      // everything, and the MediaSource should not be detached without a proper disposal
-
-
-      _this.seekable_ = videojs.createTimeRanges();
-      _this.hasPlayed_ = false;
-      _this.syncController_ = new SyncController(options);
-      _this.segmentMetadataTrack_ = tech.addRemoteTextTrack({
-        kind: 'metadata',
-        label: 'segment-metadata'
-      }, false).track;
-      _this.decrypter_ = new Decrypter();
-      _this.sourceUpdater_ = new SourceUpdater(_this.mediaSource);
-      _this.inbandTextTracks_ = {};
-      _this.timelineChangeController_ = new TimelineChangeController();
-      var segmentLoaderSettings = {
-        vhs: _this.vhs_,
-        parse708captions: options.parse708captions,
-        useDtsForTimestampOffset: options.useDtsForTimestampOffset,
-        captionServices: captionServices,
-        mediaSource: _this.mediaSource,
-        currentTime: _this.tech_.currentTime.bind(_this.tech_),
-        seekable: function seekable() {
-          return _this.seekable();
-        },
-        seeking: function seeking() {
-          return _this.tech_.seeking();
-        },
-        duration: function duration() {
-          return _this.duration();
-        },
-        hasPlayed: function hasPlayed() {
-          return _this.hasPlayed_;
-        },
-        goalBufferLength: function goalBufferLength() {
-          return _this.goalBufferLength();
-        },
-        bandwidth: bandwidth,
-        syncController: _this.syncController_,
-        decrypter: _this.decrypter_,
-        sourceType: _this.sourceType_,
-        inbandTextTracks: _this.inbandTextTracks_,
-        cacheEncryptionKeys: cacheEncryptionKeys,
-        sourceUpdater: _this.sourceUpdater_,
-        timelineChangeController: _this.timelineChangeController_,
-        experimentalExactManifestTimings: options.experimentalExactManifestTimings
-      }; // The source type check not only determines whether a special DASH playlist loader
-      // should be used, but also covers the case where the provided src is a vhs-json
-      // manifest object (instead of a URL). In the case of vhs-json, the default
-      // PlaylistLoader should be used.
-
-      _this.masterPlaylistLoader_ = _this.sourceType_ === 'dash' ? new DashPlaylistLoader(src, _this.vhs_, _this.requestOptions_) : new PlaylistLoader(src, _this.vhs_, _this.requestOptions_);
-
-      _this.setupMasterPlaylistLoaderListeners_(); // setup segment loaders
-      // combined audio/video or just video when alternate audio track is selected
-
-
-      _this.mainSegmentLoader_ = new SegmentLoader(videojs.mergeOptions(segmentLoaderSettings, {
-        segmentMetadataTrack: _this.segmentMetadataTrack_,
-        loaderType: 'main'
-      }), options); // alternate audio track
-
-      _this.audioSegmentLoader_ = new SegmentLoader(videojs.mergeOptions(segmentLoaderSettings, {
-        loaderType: 'audio'
-      }), options);
-      _this.subtitleSegmentLoader_ = new VTTSegmentLoader(videojs.mergeOptions(segmentLoaderSettings, {
-        loaderType: 'vtt',
-        featuresNativeTextTracks: _this.tech_.featuresNativeTextTracks
-      }), options);
-
-      _this.setupSegmentLoaderListeners_();
-
-      if (_this.experimentalBufferBasedABR) {
-        _this.masterPlaylistLoader_.one('loadedplaylist', function () {
-          return _this.startABRTimer_();
-        });
-
-        _this.tech_.on('pause', function () {
-          return _this.stopABRTimer_();
-        });
-
-        _this.tech_.on('play', function () {
-          return _this.startABRTimer_();
-        });
-      } // Create SegmentLoader stat-getters
-      // mediaRequests_
-      // mediaRequestsAborted_
-      // mediaRequestsTimedout_
-      // mediaRequestsErrored_
-      // mediaTransferDuration_
-      // mediaBytesTransferred_
-      // mediaAppends_
-
-
-      loaderStats.forEach(function (stat) {
-        _this[stat + '_'] = sumLoaderStat.bind(assertThisInitialized(_this), stat);
-      });
-      _this.logger_ = logger('MPC');
-      _this.triggeredFmp4Usage = false;
-
-      if (_this.tech_.preload() === 'none') {
-        _this.loadOnPlay_ = function () {
-          _this.loadOnPlay_ = null;
-
-          _this.masterPlaylistLoader_.load();
+        return {
+            segment,
+            estimatedStart: segment.videoTimingInfo ? segment.videoTimingInfo.transmuxedPresentationStart : Playlist.duration(playlist, playlist.mediaSequence + playlist.segments.indexOf(segment)),
+            // Although, given that all segments have accurate date time objects, the segment
+            // selected should be accurate, unless the video has been transmuxed at some point
+            // (determined by the presence of the videoTimingInfo object), the segment's "player
+            // time" (the start time in the player) can't be considered accurate.
+            type: segment.videoTimingInfo ? 'accurate' : 'estimate'
         };
-
-        _this.tech_.one('play', _this.loadOnPlay_);
-      } else {
-        _this.masterPlaylistLoader_.load();
-      }
-
-      _this.timeToLoadedData__ = -1;
-      _this.mainAppendsToLoadedData__ = -1;
-      _this.audioAppendsToLoadedData__ = -1;
-      var event = _this.tech_.preload() === 'none' ? 'play' : 'loadstart'; // start the first frame timer on loadstart or play (for preload none)
-
-      _this.tech_.one(event, function () {
-        var timeToLoadedDataStart = Date.now();
-
-        _this.tech_.one('loadeddata', function () {
-          _this.timeToLoadedData__ = Date.now() - timeToLoadedDataStart;
-          _this.mainAppendsToLoadedData__ = _this.mainSegmentLoader_.mediaAppends;
-          _this.audioAppendsToLoadedData__ = _this.audioSegmentLoader_.mediaAppends;
-        });
-      });
-
-      return _this;
-    }
-
-    var _proto = MasterPlaylistController.prototype;
-
-    _proto.mainAppendsToLoadedData_ = function mainAppendsToLoadedData_() {
-      return this.mainAppendsToLoadedData__;
     };
-
-    _proto.audioAppendsToLoadedData_ = function audioAppendsToLoadedData_() {
-      return this.audioAppendsToLoadedData__;
-    };
-
-    _proto.appendsToLoadedData_ = function appendsToLoadedData_() {
-      var main = this.mainAppendsToLoadedData_();
-      var audio = this.audioAppendsToLoadedData_();
-
-      if (main === -1 || audio === -1) {
-        return -1;
-      }
-
-      return main + audio;
-    };
-
-    _proto.timeToLoadedData_ = function timeToLoadedData_() {
-      return this.timeToLoadedData__;
-    }
     /**
-     * Run selectPlaylist and switch to the new playlist if we should
-     *
-     * @private
+     * Finds a segment that contains the given player time(in seconds).
      *
+     * @param {number} time The player time to find a match for
+     * @param {Object} playlist A playlist object to search within
      */
-    ;
 
-    _proto.checkABR_ = function checkABR_() {
-      var nextPlaylist = this.selectPlaylist();
+    const findSegmentForPlayerTime = (time, playlist) => {
+        // Assumptions:
+        // - there will always be a segment.duration
+        // - we can start from zero
+        // - segments are in time order
+        if (!playlist || !playlist.segments || playlist.segments.length === 0) {
+            return null;
+        }
+        let segmentEnd = 0;
+        let segment;
+        for (let i = 0; i < playlist.segments.length; i++) {
+            segment = playlist.segments[i]; // videoTimingInfo is set after the segment is downloaded and transmuxed, and
+            // should contain the most accurate values we have for the segment's player times.
+            //
+            // Use the accurate transmuxedPresentationEnd value if it is available, otherwise fall
+            // back to an estimate based on the manifest derived (inaccurate) segment.duration, to
+            // calculate an end value.
 
-      if (nextPlaylist && this.shouldSwitchToMedia_(nextPlaylist)) {
-        this.switchMedia_(nextPlaylist, 'abr');
-      }
+            segmentEnd = segment.videoTimingInfo ? segment.videoTimingInfo.transmuxedPresentationEnd : segmentEnd + segment.duration;
+            if (time <= segmentEnd) {
+                break;
+            }
+        }
+        const lastSegment = playlist.segments[playlist.segments.length - 1];
+        if (lastSegment.videoTimingInfo && lastSegment.videoTimingInfo.transmuxedPresentationEnd < time) {
+            // The time requested is beyond the stream end.
+            return null;
+        }
+        if (time > segmentEnd) {
+            // The time is within or beyond the last segment.
+            //
+            // Check to see if the time is beyond a reasonable guess of the end of the stream.
+            if (time > segmentEnd + lastSegment.duration * SEGMENT_END_FUDGE_PERCENT) {
+                // Technically, because the duration value is only an estimate, the time may still
+                // exist in the last segment, however, there isn't enough information to make even
+                // a reasonable estimate.
+                return null;
+            }
+            segment = lastSegment;
+        }
+        return {
+            segment,
+            estimatedStart: segment.videoTimingInfo ? segment.videoTimingInfo.transmuxedPresentationStart : segmentEnd - segment.duration,
+            // Because videoTimingInfo is only set after transmux, it is the only way to get
+            // accurate timing values.
+            type: segment.videoTimingInfo ? 'accurate' : 'estimate'
+        };
+    };
+    /**
+     * Gives the offset of the comparisonTimestamp from the programTime timestamp in seconds.
+     * If the offset returned is positive, the programTime occurs after the
+     * comparisonTimestamp.
+     * If the offset is negative, the programTime occurs before the comparisonTimestamp.
+     *
+     * @param {string} comparisonTimeStamp An ISO-8601 timestamp to compare against
+     * @param {string} programTime The programTime as an ISO-8601 string
+     * @return {number} offset
+     */
+
+    const getOffsetFromTimestamp = (comparisonTimeStamp, programTime) => {
+        let segmentDateTime;
+        let programDateTime;
+        try {
+            segmentDateTime = new Date(comparisonTimeStamp);
+            programDateTime = new Date(programTime);
+        } catch (e) {// TODO handle error
+        }
+        const segmentTimeEpoch = segmentDateTime.getTime();
+        const programTimeEpoch = programDateTime.getTime();
+        return (programTimeEpoch - segmentTimeEpoch) / 1000;
+    };
+    /**
+     * Checks that all segments in this playlist have programDateTime tags.
+     *
+     * @param {Object} playlist A playlist object
+     */
+
+    const verifyProgramDateTimeTags = playlist => {
+        if (!playlist.segments || playlist.segments.length === 0) {
+            return false;
+        }
+        for (let i = 0; i < playlist.segments.length; i++) {
+            const segment = playlist.segments[i];
+            if (!segment.dateTimeObject) {
+                return false;
+            }
+        }
+        return true;
+    };
+    /**
+     * Returns the programTime of the media given a playlist and a playerTime.
+     * The playlist must have programDateTime tags for a programDateTime tag to be returned.
+     * If the segments containing the time requested have not been buffered yet, an estimate
+     * may be returned to the callback.
+     *
+     * @param {Object} args
+     * @param {Object} args.playlist A playlist object to search within
+     * @param {number} time A playerTime in seconds
+     * @param {Function} callback(err, programTime)
+     * @return {string} err.message A detailed error message
+     * @return {Object} programTime
+     * @return {number} programTime.mediaSeconds The streamTime in seconds
+     * @return {string} programTime.programDateTime The programTime as an ISO-8601 String
+     */
+
+    const getProgramTime = ({
+                                playlist,
+                                time = undefined,
+                                callback
+                            }) => {
+        if (!callback) {
+            throw new Error('getProgramTime: callback must be provided');
+        }
+        if (!playlist || time === undefined) {
+            return callback({
+                message: 'getProgramTime: playlist and time must be provided'
+            });
+        }
+        const matchedSegment = findSegmentForPlayerTime(time, playlist);
+        if (!matchedSegment) {
+            return callback({
+                message: 'valid programTime was not found'
+            });
+        }
+        if (matchedSegment.type === 'estimate') {
+            return callback({
+                message: 'Accurate programTime could not be determined.' + ' Please seek to e.seekTime and try again',
+                seekTime: matchedSegment.estimatedStart
+            });
+        }
+        const programTimeObject = {
+            mediaSeconds: time
+        };
+        const programTime = playerTimeToProgramTime(time, matchedSegment.segment);
+        if (programTime) {
+            programTimeObject.programDateTime = programTime.toISOString();
+        }
+        return callback(null, programTimeObject);
+    };
+    /**
+     * Seeks in the player to a time that matches the given programTime ISO-8601 string.
+     *
+     * @param {Object} args
+     * @param {string} args.programTime A programTime to seek to as an ISO-8601 String
+     * @param {Object} args.playlist A playlist to look within
+     * @param {number} args.retryCount The number of times to try for an accurate seek. Default is 2.
+     * @param {Function} args.seekTo A method to perform a seek
+     * @param {boolean} args.pauseAfterSeek Whether to end in a paused state after seeking. Default is true.
+     * @param {Object} args.tech The tech to seek on
+     * @param {Function} args.callback(err, newTime) A callback to return the new time to
+     * @return {string} err.message A detailed error message
+     * @return {number} newTime The exact time that was seeked to in seconds
+     */
+
+    const seekToProgramTime = ({
+                                   programTime,
+                                   playlist,
+                                   retryCount = 2,
+                                   seekTo,
+                                   pauseAfterSeek = true,
+                                   tech,
+                                   callback
+                               }) => {
+        if (!callback) {
+            throw new Error('seekToProgramTime: callback must be provided');
+        }
+        if (typeof programTime === 'undefined' || !playlist || !seekTo) {
+            return callback({
+                message: 'seekToProgramTime: programTime, seekTo and playlist must be provided'
+            });
+        }
+        if (!playlist.endList && !tech.hasStarted_) {
+            return callback({
+                message: 'player must be playing a live stream to start buffering'
+            });
+        }
+        if (!verifyProgramDateTimeTags(playlist)) {
+            return callback({
+                message: 'programDateTime tags must be provided in the manifest ' + playlist.resolvedUri
+            });
+        }
+        const matchedSegment = findSegmentForProgramTime(programTime, playlist); // no match
+
+        if (!matchedSegment) {
+            return callback({
+                message: `${programTime} was not found in the stream`
+            });
+        }
+        const segment = matchedSegment.segment;
+        const mediaOffset = getOffsetFromTimestamp(segment.dateTimeObject, programTime);
+        if (matchedSegment.type === 'estimate') {
+            // we've run out of retries
+            if (retryCount === 0) {
+                return callback({
+                    message: `${programTime} is not buffered yet. Try again`
+                });
+            }
+            seekTo(matchedSegment.estimatedStart + mediaOffset);
+            tech.one('seeked', () => {
+                seekToProgramTime({
+                    programTime,
+                    playlist,
+                    retryCount: retryCount - 1,
+                    seekTo,
+                    pauseAfterSeek,
+                    tech,
+                    callback
+                });
+            });
+            return;
+        } // Since the segment.start value is determined from the buffered end or ending time
+        // of the prior segment, the seekToTime doesn't need to account for any transmuxer
+        // modifications.
+
+        const seekToTime = segment.start + mediaOffset;
+        const seekedCallback = () => {
+            return callback(null, tech.currentTime());
+        }; // listen for seeked event
+
+        tech.one('seeked', seekedCallback); // pause before seeking as video.js will restore this state
+
+        if (pauseAfterSeek) {
+            tech.pause();
+        }
+        seekTo(seekToTime);
     };
 
-    _proto.switchMedia_ = function switchMedia_(playlist, cause, delay) {
-      var oldMedia = this.media();
-      var oldId = oldMedia && (oldMedia.id || oldMedia.uri);
-      var newId = playlist.id || playlist.uri;
+    // which will only happen if the request is complete.
 
-      if (oldId && oldId !== newId) {
-        this.logger_("switch media " + oldId + " -> " + newId + " from " + cause);
-        this.tech_.trigger({
-          type: 'usage',
-          name: "vhs-rendition-change-" + cause
-        });
-      }
-
-      this.masterPlaylistLoader_.media(playlist, delay);
-    }
-    /**
-     * Start a timer that periodically calls checkABR_
-     *
-     * @private
-     */
-    ;
-
-    _proto.startABRTimer_ = function startABRTimer_() {
-      var _this2 = this;
-
-      this.stopABRTimer_();
-      this.abrTimer_ = window.setInterval(function () {
-        return _this2.checkABR_();
-      }, 250);
-    }
-    /**
-     * Stop the timer that periodically calls checkABR_
-     *
-     * @private
-     */
-    ;
-
-    _proto.stopABRTimer_ = function stopABRTimer_() {
-      // if we're scrubbing, we don't need to pause.
-      // This getter will be added to Video.js in version 7.11.
-      if (this.tech_.scrubbing && this.tech_.scrubbing()) {
+    const callbackOnCompleted = (request, cb) => {
+        if (request.readyState === 4) {
+            return cb();
+        }
         return;
-      }
+    };
+    const containerRequest = (uri, xhr, cb) => {
+        let bytes = [];
+        let id3Offset;
+        let finished = false;
+        const endRequestAndCallback = function (err, req, type, _bytes) {
+            req.abort();
+            finished = true;
+            return cb(err, req, type, _bytes);
+        };
+        const progressListener = function (error, request) {
+            if (finished) {
+                return;
+            }
+            if (error) {
+                return endRequestAndCallback(error, request, '', bytes);
+            } // grap the new part of content that was just downloaded
 
-      window.clearInterval(this.abrTimer_);
-      this.abrTimer_ = null;
-    }
+            const newPart = request.responseText.substring(bytes && bytes.byteLength || 0, request.responseText.length); // add that onto bytes
+
+            bytes = concatTypedArrays(bytes, stringToBytes(newPart, true));
+            id3Offset = id3Offset || getId3Offset(bytes); // we need at least 10 bytes to determine a type
+            // or we need at least two bytes after an id3Offset
+
+            if (bytes.length < 10 || id3Offset && bytes.length < id3Offset + 2) {
+                return callbackOnCompleted(request, () => endRequestAndCallback(error, request, '', bytes));
+            }
+            const type = detectContainerForBytes(bytes); // if this looks like a ts segment but we don't have enough data
+            // to see the second sync byte, wait until we have enough data
+            // before declaring it ts
+
+            if (type === 'ts' && bytes.length < 188) {
+                return callbackOnCompleted(request, () => endRequestAndCallback(error, request, '', bytes));
+            } // this may be an unsynced ts segment
+            // wait for 376 bytes before detecting no container
+
+            if (!type && bytes.length < 376) {
+                return callbackOnCompleted(request, () => endRequestAndCallback(error, request, '', bytes));
+            }
+            return endRequestAndCallback(null, request, type, bytes);
+        };
+        const options = {
+            uri,
+            beforeSend(request) {
+                // this forces the browser to pass the bytes to us unprocessed
+                request.overrideMimeType('text/plain; charset=x-user-defined');
+                request.addEventListener('progress', function ({
+                                                                   total,
+                                                                   loaded
+                                                               }) {
+                    return callbackWrapper(request, null, {
+                        statusCode: request.status
+                    }, progressListener);
+                });
+            }
+        };
+        const request = xhr(options, function (error, response) {
+            return callbackWrapper(request, error, response, progressListener);
+        });
+        return request;
+    };
+    const {
+        EventTarget
+    } = videojs;
+    const dashPlaylistUnchanged = function (a, b) {
+        if (!isPlaylistUnchanged(a, b)) {
+            return false;
+        } // for dash the above check will often return true in scenarios where
+        // the playlist actually has changed because mediaSequence isn't a
+        // dash thing, and we often set it to 1. So if the playlists have the same amount
+        // of segments we return true.
+        // So for dash we need to make sure that the underlying segments are different.
+        // if sidx changed then the playlists are different.
+
+        if (a.sidx && b.sidx && (a.sidx.offset !== b.sidx.offset || a.sidx.length !== b.sidx.length)) {
+            return false;
+        } else if (!a.sidx && b.sidx || a.sidx && !b.sidx) {
+            return false;
+        } // one or the other does not have segments
+        // there was a change.
+
+        if (a.segments && !b.segments || !a.segments && b.segments) {
+            return false;
+        } // neither has segments nothing changed
+
+        if (!a.segments && !b.segments) {
+            return true;
+        } // check segments themselves
+
+        for (let i = 0; i < a.segments.length; i++) {
+            const aSegment = a.segments[i];
+            const bSegment = b.segments[i]; // if uris are different between segments there was a change
+
+            if (aSegment.uri !== bSegment.uri) {
+                return false;
+            } // neither segment has a byterange, there will be no byterange change.
+
+            if (!aSegment.byterange && !bSegment.byterange) {
+                continue;
+            }
+            const aByterange = aSegment.byterange;
+            const bByterange = bSegment.byterange; // if byterange only exists on one of the segments, there was a change.
+
+            if (aByterange && !bByterange || !aByterange && bByterange) {
+                return false;
+            } // if both segments have byterange with different offsets, there was a change.
+
+            if (aByterange.offset !== bByterange.offset || aByterange.length !== bByterange.length) {
+                return false;
+            }
+        } // if everything was the same with segments, this is the same playlist.
+
+        return true;
+    };
     /**
-     * Get a list of playlists for the currently selected audio playlist
-     *
-     * @return {Array} the array of audio playlists
+     * Use the representation IDs from the mpd object to create groupIDs, the NAME is set to mandatory representation
+     * ID in the parser. This allows for continuous playout across periods with the same representation IDs
+     * (continuous periods as defined in DASH-IF 3.2.12). This is assumed in the mpd-parser as well. If we want to support
+     * periods without continuous playback this function may need modification as well as the parser.
      */
-    ;
 
-    _proto.getAudioTrackPlaylists_ = function getAudioTrackPlaylists_() {
-      var master = this.master();
-      var defaultPlaylists = master && master.playlists || []; // if we don't have any audio groups then we can only
-      // assume that the audio tracks are contained in masters
-      // playlist array, use that or an empty array.
+    const dashGroupId = (type, group, label, playlist) => {
+        // If the manifest somehow does not have an ID (non-dash compliant), use the label.
+        const playlistId = playlist.attributes.NAME || label;
+        return `placeholder-uri-${type}-${group}-${playlistId}`;
+    };
+    /**
+     * Parses the main XML string and updates playlist URI references.
+     *
+     * @param {Object} config
+     *        Object of arguments
+     * @param {string} config.mainXml
+     *        The mpd XML
+     * @param {string} config.srcUrl
+     *        The mpd URL
+     * @param {Date} config.clientOffset
+     *         A time difference between server and client
+     * @param {Object} config.sidxMapping
+     *        SIDX mappings for moof/mdat URIs and byte ranges
+     * @return {Object}
+     *         The parsed mpd manifest object
+     */
 
-      if (!master || !master.mediaGroups || !master.mediaGroups.AUDIO) {
-        return defaultPlaylists;
-      }
+    const parseMainXml = ({
+                              mainXml,
+                              srcUrl,
+                              clientOffset,
+                              sidxMapping,
+                              previousManifest
+                          }) => {
+        const manifest = parse(mainXml, {
+            manifestUri: srcUrl,
+            clientOffset,
+            sidxMapping,
+            previousManifest
+        });
+        addPropertiesToMain(manifest, srcUrl, dashGroupId);
+        return manifest;
+    };
+    /**
+     * Removes any mediaGroup labels that no longer exist in the newMain
+     *
+     * @param {Object} update
+     *         The previous mpd object being updated
+     * @param {Object} newMain
+     *         The new mpd object
+     */
 
-      var AUDIO = master.mediaGroups.AUDIO;
-      var groupKeys = Object.keys(AUDIO);
-      var track; // get the current active track
+    const removeOldMediaGroupLabels = (update, newMain) => {
+        forEachMediaGroup(update, (properties, type, group, label) => {
+            if (!(label in newMain.mediaGroups[type][group])) {
+                delete update.mediaGroups[type][group][label];
+            }
+        });
+    };
+    /**
+     * Returns a new main manifest that is the result of merging an updated main manifest
+     * into the original version.
+     *
+     * @param {Object} oldMain
+     *        The old parsed mpd object
+     * @param {Object} newMain
+     *        The updated parsed mpd object
+     * @return {Object}
+     *         A new object representing the original main manifest with the updated media
+     *         playlists merged in
+     */
 
-      if (Object.keys(this.mediaTypes_.AUDIO.groups).length) {
-        track = this.mediaTypes_.AUDIO.activeTrack(); // or get the default track from master if mediaTypes_ isn't setup yet
-      } else {
-        // default group is `main` or just the first group.
-        var defaultGroup = AUDIO.main || groupKeys.length && AUDIO[groupKeys[0]];
+    const updateMain = (oldMain, newMain, sidxMapping) => {
+        let noChanges = true;
+        let update = merge(oldMain, {
+            // These are top level properties that can be updated
+            duration: newMain.duration,
+            minimumUpdatePeriod: newMain.minimumUpdatePeriod,
+            timelineStarts: newMain.timelineStarts
+        }); // First update the playlists in playlist list
 
-        for (var label in defaultGroup) {
-          if (defaultGroup[label]["default"]) {
-            track = {
-              label: label
+        for (let i = 0; i < newMain.playlists.length; i++) {
+            const playlist = newMain.playlists[i];
+            if (playlist.sidx) {
+                const sidxKey = generateSidxKey(playlist.sidx); // add sidx segments to the playlist if we have all the sidx info already
+
+                if (sidxMapping && sidxMapping[sidxKey] && sidxMapping[sidxKey].sidx) {
+                    addSidxSegmentsToPlaylist$1(playlist, sidxMapping[sidxKey].sidx, playlist.sidx.resolvedUri);
+                }
+            }
+            const playlistUpdate = updateMain$1(update, playlist, dashPlaylistUnchanged);
+            if (playlistUpdate) {
+                update = playlistUpdate;
+                noChanges = false;
+            }
+        } // Then update media group playlists
+
+        forEachMediaGroup(newMain, (properties, type, group, label) => {
+            if (properties.playlists && properties.playlists.length) {
+                const id = properties.playlists[0].id;
+                const playlistUpdate = updateMain$1(update, properties.playlists[0], dashPlaylistUnchanged);
+                if (playlistUpdate) {
+                    update = playlistUpdate; // add new mediaGroup label if it doesn't exist and assign the new mediaGroup.
+
+                    if (!(label in update.mediaGroups[type][group])) {
+                        update.mediaGroups[type][group][label] = properties;
+                    } // update the playlist reference within media groups
+
+                    update.mediaGroups[type][group][label].playlists[0] = update.playlists[id];
+                    noChanges = false;
+                }
+            }
+        }); // remove mediaGroup labels and references that no longer exist in the newMain
+
+        removeOldMediaGroupLabels(update, newMain);
+        if (newMain.minimumUpdatePeriod !== oldMain.minimumUpdatePeriod) {
+            noChanges = false;
+        }
+        if (noChanges) {
+            return null;
+        }
+        return update;
+    }; // SIDX should be equivalent if the URI and byteranges of the SIDX match.
+    // If the SIDXs have maps, the two maps should match,
+    // both `a` and `b` missing SIDXs is considered matching.
+    // If `a` or `b` but not both have a map, they aren't matching.
+
+    const equivalentSidx = (a, b) => {
+        const neitherMap = Boolean(!a.map && !b.map);
+        const equivalentMap = neitherMap || Boolean(a.map && b.map && a.map.byterange.offset === b.map.byterange.offset && a.map.byterange.length === b.map.byterange.length);
+        return equivalentMap && a.uri === b.uri && a.byterange.offset === b.byterange.offset && a.byterange.length === b.byterange.length;
+    }; // exported for testing
+
+    const compareSidxEntry = (playlists, oldSidxMapping) => {
+        const newSidxMapping = {};
+        for (const id in playlists) {
+            const playlist = playlists[id];
+            const currentSidxInfo = playlist.sidx;
+            if (currentSidxInfo) {
+                const key = generateSidxKey(currentSidxInfo);
+                if (!oldSidxMapping[key]) {
+                    break;
+                }
+                const savedSidxInfo = oldSidxMapping[key].sidxInfo;
+                if (equivalentSidx(savedSidxInfo, currentSidxInfo)) {
+                    newSidxMapping[key] = oldSidxMapping[key];
+                }
+            }
+        }
+        return newSidxMapping;
+    };
+    /**
+     *  A function that filters out changed items as they need to be requested separately.
+     *
+     *  The method is exported for testing
+     *
+     *  @param {Object} main the parsed mpd XML returned via mpd-parser
+     *  @param {Object} oldSidxMapping the SIDX to compare against
+     */
+
+    const filterChangedSidxMappings = (main, oldSidxMapping) => {
+        const videoSidx = compareSidxEntry(main.playlists, oldSidxMapping);
+        let mediaGroupSidx = videoSidx;
+        forEachMediaGroup(main, (properties, mediaType, groupKey, labelKey) => {
+            if (properties.playlists && properties.playlists.length) {
+                const playlists = properties.playlists;
+                mediaGroupSidx = merge(mediaGroupSidx, compareSidxEntry(playlists, oldSidxMapping));
+            }
+        });
+        return mediaGroupSidx;
+    };
+    class DashPlaylistLoader extends EventTarget {
+        // DashPlaylistLoader must accept either a src url or a playlist because subsequent
+        // playlist loader setups from media groups will expect to be able to pass a playlist
+        // (since there aren't external URLs to media playlists with DASH)
+        constructor(srcUrlOrPlaylist, vhs, options = {}, mainPlaylistLoader) {
+            super();
+            this.mainPlaylistLoader_ = mainPlaylistLoader || this;
+            if (!mainPlaylistLoader) {
+                this.isMain_ = true;
+            }
+            const {
+                withCredentials = false
+            } = options;
+            this.vhs_ = vhs;
+            this.withCredentials = withCredentials;
+            if (!srcUrlOrPlaylist) {
+                throw new Error('A non-empty playlist URL or object is required');
+            } // event naming?
+
+            this.on('minimumUpdatePeriod', () => {
+                this.refreshXml_();
+            }); // live playlist staleness timeout
+
+            this.on('mediaupdatetimeout', () => {
+                this.refreshMedia_(this.media().id);
+            });
+            this.state = 'HAVE_NOTHING';
+            this.loadedPlaylists_ = {};
+            this.logger_ = logger('DashPlaylistLoader'); // initialize the loader state
+            // The mainPlaylistLoader will be created with a string
+
+            if (this.isMain_) {
+                this.mainPlaylistLoader_.srcUrl = srcUrlOrPlaylist; // TODO: reset sidxMapping between period changes
+                // once multi-period is refactored
+
+                this.mainPlaylistLoader_.sidxMapping_ = {};
+            } else {
+                this.childPlaylist_ = srcUrlOrPlaylist;
+            }
+        }
+        requestErrored_(err, request, startingState) {
+            // disposed
+            if (!this.request) {
+                return true;
+            } // pending request is cleared
+
+            this.request = null;
+            if (err) {
+                // use the provided error object or create one
+                // based on the request/response
+                this.error = typeof err === 'object' && !(err instanceof Error) ? err : {
+                    status: request.status,
+                    message: 'DASH request error at URL: ' + request.uri,
+                    response: request.response,
+                    // MEDIA_ERR_NETWORK
+                    code: 2
+                };
+                if (startingState) {
+                    this.state = startingState;
+                }
+                this.trigger('error');
+                return true;
+            }
+        }
+        /**
+         * Verify that the container of the sidx segment can be parsed
+         * and if it can, get and parse that segment.
+         */
+
+        addSidxSegments_(playlist, startingState, cb) {
+            const sidxKey = playlist.sidx && generateSidxKey(playlist.sidx); // playlist lacks sidx or sidx segments were added to this playlist already.
+
+            if (!playlist.sidx || !sidxKey || this.mainPlaylistLoader_.sidxMapping_[sidxKey]) {
+                // keep this function async
+                this.mediaRequest_ = window.setTimeout(() => cb(false), 0);
+                return;
+            } // resolve the segment URL relative to the playlist
+
+            const uri = resolveManifestRedirect(playlist.sidx.resolvedUri);
+            const fin = (err, request) => {
+                if (this.requestErrored_(err, request, startingState)) {
+                    return;
+                }
+                const sidxMapping = this.mainPlaylistLoader_.sidxMapping_;
+                let sidx;
+                try {
+                    sidx = parseSidx_1(toUint8(request.response).subarray(8));
+                } catch (e) {
+                    // sidx parsing failed.
+                    this.requestErrored_(e, request, startingState);
+                    return;
+                }
+                sidxMapping[sidxKey] = {
+                    sidxInfo: playlist.sidx,
+                    sidx
+                };
+                addSidxSegmentsToPlaylist$1(playlist, sidx, playlist.sidx.resolvedUri);
+                return cb(true);
             };
-            break;
-          }
+            this.request = containerRequest(uri, this.vhs_.xhr, (err, request, container, bytes) => {
+                if (err) {
+                    return fin(err, request);
+                }
+                if (!container || container !== 'mp4') {
+                    return fin({
+                        status: request.status,
+                        message: `Unsupported ${container || 'unknown'} container type for sidx segment at URL: ${uri}`,
+                        // response is just bytes in this case
+                        // but we really don't want to return that.
+                        response: '',
+                        playlist,
+                        internal: true,
+                        playlistExclusionDuration: Infinity,
+                        // MEDIA_ERR_NETWORK
+                        code: 2
+                    }, request);
+                } // if we already downloaded the sidx bytes in the container request, use them
+
+                const {
+                    offset,
+                    length
+                } = playlist.sidx.byterange;
+                if (bytes.length >= length + offset) {
+                    return fin(err, {
+                        response: bytes.subarray(offset, offset + length),
+                        status: request.status,
+                        uri: request.uri
+                    });
+                } // otherwise request sidx bytes
+
+                this.request = this.vhs_.xhr({
+                    uri,
+                    responseType: 'arraybuffer',
+                    headers: segmentXhrHeaders({
+                        byterange: playlist.sidx.byterange
+                    })
+                }, fin);
+            });
         }
-      } // no active track no playlists.
-
-
-      if (!track) {
-        return defaultPlaylists;
-      }
-
-      var playlists = []; // get all of the playlists that are possible for the
-      // active track.
-
-      for (var group in AUDIO) {
-        if (AUDIO[group][track.label]) {
-          var properties = AUDIO[group][track.label];
-
-          if (properties.playlists && properties.playlists.length) {
-            playlists.push.apply(playlists, properties.playlists);
-          } else if (properties.uri) {
-            playlists.push(properties);
-          } else if (master.playlists.length) {
-            // if an audio group does not have a uri
-            // see if we have main playlists that use it as a group.
-            // if we do then add those to the playlists list.
-            for (var i = 0; i < master.playlists.length; i++) {
-              var playlist = master.playlists[i];
-
-              if (playlist.attributes && playlist.attributes.AUDIO && playlist.attributes.AUDIO === group) {
-                playlists.push(playlist);
-              }
+        dispose() {
+            this.trigger('dispose');
+            this.stopRequest();
+            this.loadedPlaylists_ = {};
+            window.clearTimeout(this.minimumUpdatePeriodTimeout_);
+            window.clearTimeout(this.mediaRequest_);
+            window.clearTimeout(this.mediaUpdateTimeout);
+            this.mediaUpdateTimeout = null;
+            this.mediaRequest_ = null;
+            this.minimumUpdatePeriodTimeout_ = null;
+            if (this.mainPlaylistLoader_.createMupOnMedia_) {
+                this.off('loadedmetadata', this.mainPlaylistLoader_.createMupOnMedia_);
+                this.mainPlaylistLoader_.createMupOnMedia_ = null;
             }
-          }
+            this.off();
         }
-      }
-
-      if (!playlists.length) {
-        return defaultPlaylists;
-      }
-
-      return playlists;
-    }
-    /**
-     * Register event handlers on the master playlist loader. A helper
-     * function for construction time.
-     *
-     * @private
-     */
-    ;
-
-    _proto.setupMasterPlaylistLoaderListeners_ = function setupMasterPlaylistLoaderListeners_() {
-      var _this3 = this;
-
-      this.masterPlaylistLoader_.on('loadedmetadata', function () {
-        var media = _this3.masterPlaylistLoader_.media();
-
-        var requestTimeout = media.targetDuration * 1.5 * 1000; // If we don't have any more available playlists, we don't want to
-        // timeout the request.
-
-        if (isLowestEnabledRendition(_this3.masterPlaylistLoader_.master, _this3.masterPlaylistLoader_.media())) {
-          _this3.requestOptions_.timeout = 0;
-        } else {
-          _this3.requestOptions_.timeout = requestTimeout;
-        } // if this isn't a live video and preload permits, start
-        // downloading segments
-
-
-        if (media.endList && _this3.tech_.preload() !== 'none') {
-          _this3.mainSegmentLoader_.playlist(media, _this3.requestOptions_);
-
-          _this3.mainSegmentLoader_.load();
+        hasPendingRequest() {
+            return this.request || this.mediaRequest_;
         }
-
-        setupMediaGroups({
-          sourceType: _this3.sourceType_,
-          segmentLoaders: {
-            AUDIO: _this3.audioSegmentLoader_,
-            SUBTITLES: _this3.subtitleSegmentLoader_,
-            main: _this3.mainSegmentLoader_
-          },
-          tech: _this3.tech_,
-          requestOptions: _this3.requestOptions_,
-          masterPlaylistLoader: _this3.masterPlaylistLoader_,
-          vhs: _this3.vhs_,
-          master: _this3.master(),
-          mediaTypes: _this3.mediaTypes_,
-          blacklistCurrentPlaylist: _this3.blacklistCurrentPlaylist.bind(_this3)
-        });
-
-        _this3.triggerPresenceUsage_(_this3.master(), media);
-
-        _this3.setupFirstPlay();
-
-        if (!_this3.mediaTypes_.AUDIO.activePlaylistLoader || _this3.mediaTypes_.AUDIO.activePlaylistLoader.media()) {
-          _this3.trigger('selectedinitialmedia');
-        } else {
-          // We must wait for the active audio playlist loader to
-          // finish setting up before triggering this event so the
-          // representations API and EME setup is correct
-          _this3.mediaTypes_.AUDIO.activePlaylistLoader.one('loadedmetadata', function () {
-            _this3.trigger('selectedinitialmedia');
-          });
-        }
-      });
-      this.masterPlaylistLoader_.on('loadedplaylist', function () {
-        if (_this3.loadOnPlay_) {
-          _this3.tech_.off('play', _this3.loadOnPlay_);
-        }
-
-        var updatedPlaylist = _this3.masterPlaylistLoader_.media();
-
-        if (!updatedPlaylist) {
-          // exclude any variants that are not supported by the browser before selecting
-          // an initial media as the playlist selectors do not consider browser support
-          _this3.excludeUnsupportedVariants_();
-
-          var selectedMedia;
-
-          if (_this3.enableLowInitialPlaylist) {
-            selectedMedia = _this3.selectInitialPlaylist();
-          }
-
-          if (!selectedMedia) {
-            selectedMedia = _this3.selectPlaylist();
-          }
-
-          if (!selectedMedia || !_this3.shouldSwitchToMedia_(selectedMedia)) {
-            return;
-          }
-
-          _this3.initialMedia_ = selectedMedia;
-
-          _this3.switchMedia_(_this3.initialMedia_, 'initial'); // Under the standard case where a source URL is provided, loadedplaylist will
-          // fire again since the playlist will be requested. In the case of vhs-json
-          // (where the manifest object is provided as the source), when the media
-          // playlist's `segments` list is already available, a media playlist won't be
-          // requested, and loadedplaylist won't fire again, so the playlist handler must be
-          // called on its own here.
-
-
-          var haveJsonSource = _this3.sourceType_ === 'vhs-json' && _this3.initialMedia_.segments;
-
-          if (!haveJsonSource) {
-            return;
-          }
-
-          updatedPlaylist = _this3.initialMedia_;
-        }
-
-        _this3.handleUpdatedMediaPlaylist(updatedPlaylist);
-      });
-      this.masterPlaylistLoader_.on('error', function () {
-        _this3.blacklistCurrentPlaylist(_this3.masterPlaylistLoader_.error);
-      });
-      this.masterPlaylistLoader_.on('mediachanging', function () {
-        _this3.mainSegmentLoader_.abort();
-
-        _this3.mainSegmentLoader_.pause();
-      });
-      this.masterPlaylistLoader_.on('mediachange', function () {
-        var media = _this3.masterPlaylistLoader_.media();
-
-        var requestTimeout = media.targetDuration * 1.5 * 1000; // If we don't have any more available playlists, we don't want to
-        // timeout the request.
-
-        if (isLowestEnabledRendition(_this3.masterPlaylistLoader_.master, _this3.masterPlaylistLoader_.media())) {
-          _this3.requestOptions_.timeout = 0;
-        } else {
-          _this3.requestOptions_.timeout = requestTimeout;
-        } // TODO: Create a new event on the PlaylistLoader that signals
-        // that the segments have changed in some way and use that to
-        // update the SegmentLoader instead of doing it twice here and
-        // on `loadedplaylist`
-
-
-        _this3.mainSegmentLoader_.playlist(media, _this3.requestOptions_);
-
-        _this3.mainSegmentLoader_.load();
-
-        _this3.tech_.trigger({
-          type: 'mediachange',
-          bubbles: true
-        });
-      });
-      this.masterPlaylistLoader_.on('playlistunchanged', function () {
-        var updatedPlaylist = _this3.masterPlaylistLoader_.media(); // ignore unchanged playlists that have already been
-        // excluded for not-changing. We likely just have a really slowly updating
-        // playlist.
-
-
-        if (updatedPlaylist.lastExcludeReason_ === 'playlist-unchanged') {
-          return;
-        }
-
-        var playlistOutdated = _this3.stuckAtPlaylistEnd_(updatedPlaylist);
-
-        if (playlistOutdated) {
-          // Playlist has stopped updating and we're stuck at its end. Try to
-          // blacklist it and switch to another playlist in the hope that that
-          // one is updating (and give the player a chance to re-adjust to the
-          // safe live point).
-          _this3.blacklistCurrentPlaylist({
-            message: 'Playlist no longer updating.',
-            reason: 'playlist-unchanged'
-          }); // useful for monitoring QoS
-
-
-          _this3.tech_.trigger('playliststuck');
-        }
-      });
-      this.masterPlaylistLoader_.on('renditiondisabled', function () {
-        _this3.tech_.trigger({
-          type: 'usage',
-          name: 'vhs-rendition-disabled'
-        });
-
-        _this3.tech_.trigger({
-          type: 'usage',
-          name: 'hls-rendition-disabled'
-        });
-      });
-      this.masterPlaylistLoader_.on('renditionenabled', function () {
-        _this3.tech_.trigger({
-          type: 'usage',
-          name: 'vhs-rendition-enabled'
-        });
-
-        _this3.tech_.trigger({
-          type: 'usage',
-          name: 'hls-rendition-enabled'
-        });
-      });
-    }
-    /**
-     * Given an updated media playlist (whether it was loaded for the first time, or
-     * refreshed for live playlists), update any relevant properties and state to reflect
-     * changes in the media that should be accounted for (e.g., cues and duration).
-     *
-     * @param {Object} updatedPlaylist the updated media playlist object
-     *
-     * @private
-     */
-    ;
-
-    _proto.handleUpdatedMediaPlaylist = function handleUpdatedMediaPlaylist(updatedPlaylist) {
-      if (this.useCueTags_) {
-        this.updateAdCues_(updatedPlaylist);
-      } // TODO: Create a new event on the PlaylistLoader that signals
-      // that the segments have changed in some way and use that to
-      // update the SegmentLoader instead of doing it twice here and
-      // on `mediachange`
-
-
-      this.mainSegmentLoader_.playlist(updatedPlaylist, this.requestOptions_);
-      this.updateDuration(!updatedPlaylist.endList); // If the player isn't paused, ensure that the segment loader is running,
-      // as it is possible that it was temporarily stopped while waiting for
-      // a playlist (e.g., in case the playlist errored and we re-requested it).
-
-      if (!this.tech_.paused()) {
-        this.mainSegmentLoader_.load();
-
-        if (this.audioSegmentLoader_) {
-          this.audioSegmentLoader_.load();
-        }
-      }
-    }
-    /**
-     * A helper function for triggerring presence usage events once per source
-     *
-     * @private
-     */
-    ;
-
-    _proto.triggerPresenceUsage_ = function triggerPresenceUsage_(master, media) {
-      var mediaGroups = master.mediaGroups || {};
-      var defaultDemuxed = true;
-      var audioGroupKeys = Object.keys(mediaGroups.AUDIO);
-
-      for (var mediaGroup in mediaGroups.AUDIO) {
-        for (var label in mediaGroups.AUDIO[mediaGroup]) {
-          var properties = mediaGroups.AUDIO[mediaGroup][label];
-
-          if (!properties.uri) {
-            defaultDemuxed = false;
-          }
-        }
-      }
-
-      if (defaultDemuxed) {
-        this.tech_.trigger({
-          type: 'usage',
-          name: 'vhs-demuxed'
-        });
-        this.tech_.trigger({
-          type: 'usage',
-          name: 'hls-demuxed'
-        });
-      }
-
-      if (Object.keys(mediaGroups.SUBTITLES).length) {
-        this.tech_.trigger({
-          type: 'usage',
-          name: 'vhs-webvtt'
-        });
-        this.tech_.trigger({
-          type: 'usage',
-          name: 'hls-webvtt'
-        });
-      }
-
-      if (Vhs$1.Playlist.isAes(media)) {
-        this.tech_.trigger({
-          type: 'usage',
-          name: 'vhs-aes'
-        });
-        this.tech_.trigger({
-          type: 'usage',
-          name: 'hls-aes'
-        });
-      }
-
-      if (audioGroupKeys.length && Object.keys(mediaGroups.AUDIO[audioGroupKeys[0]]).length > 1) {
-        this.tech_.trigger({
-          type: 'usage',
-          name: 'vhs-alternate-audio'
-        });
-        this.tech_.trigger({
-          type: 'usage',
-          name: 'hls-alternate-audio'
-        });
-      }
-
-      if (this.useCueTags_) {
-        this.tech_.trigger({
-          type: 'usage',
-          name: 'vhs-playlist-cue-tags'
-        });
-        this.tech_.trigger({
-          type: 'usage',
-          name: 'hls-playlist-cue-tags'
-        });
-      }
-    };
-
-    _proto.shouldSwitchToMedia_ = function shouldSwitchToMedia_(nextPlaylist) {
-      var currentPlaylist = this.masterPlaylistLoader_.media() || this.masterPlaylistLoader_.pendingMedia_;
-      var currentTime = this.tech_.currentTime();
-      var bufferLowWaterLine = this.bufferLowWaterLine();
-      var bufferHighWaterLine = this.bufferHighWaterLine();
-      var buffered = this.tech_.buffered();
-      return shouldSwitchToMedia({
-        buffered: buffered,
-        currentTime: currentTime,
-        currentPlaylist: currentPlaylist,
-        nextPlaylist: nextPlaylist,
-        bufferLowWaterLine: bufferLowWaterLine,
-        bufferHighWaterLine: bufferHighWaterLine,
-        duration: this.duration(),
-        experimentalBufferBasedABR: this.experimentalBufferBasedABR,
-        log: this.logger_
-      });
-    }
-    /**
-     * Register event handlers on the segment loaders. A helper function
-     * for construction time.
-     *
-     * @private
-     */
-    ;
-
-    _proto.setupSegmentLoaderListeners_ = function setupSegmentLoaderListeners_() {
-      var _this4 = this;
-
-      if (!this.experimentalBufferBasedABR) {
-        this.mainSegmentLoader_.on('bandwidthupdate', function () {
-          var nextPlaylist = _this4.selectPlaylist();
-
-          if (_this4.shouldSwitchToMedia_(nextPlaylist)) {
-            _this4.switchMedia_(nextPlaylist, 'bandwidthupdate');
-          }
-
-          _this4.tech_.trigger('bandwidthupdate');
-        });
-        this.mainSegmentLoader_.on('progress', function () {
-          _this4.trigger('progress');
-        });
-      }
-
-      this.mainSegmentLoader_.on('error', function () {
-        _this4.blacklistCurrentPlaylist(_this4.mainSegmentLoader_.error());
-      });
-      this.mainSegmentLoader_.on('appenderror', function () {
-        _this4.error = _this4.mainSegmentLoader_.error_;
-
-        _this4.trigger('error');
-      });
-      this.mainSegmentLoader_.on('syncinfoupdate', function () {
-        _this4.onSyncInfoUpdate_();
-      });
-      this.mainSegmentLoader_.on('timestampoffset', function () {
-        _this4.tech_.trigger({
-          type: 'usage',
-          name: 'vhs-timestamp-offset'
-        });
-
-        _this4.tech_.trigger({
-          type: 'usage',
-          name: 'hls-timestamp-offset'
-        });
-      });
-      this.audioSegmentLoader_.on('syncinfoupdate', function () {
-        _this4.onSyncInfoUpdate_();
-      });
-      this.audioSegmentLoader_.on('appenderror', function () {
-        _this4.error = _this4.audioSegmentLoader_.error_;
-
-        _this4.trigger('error');
-      });
-      this.mainSegmentLoader_.on('ended', function () {
-        _this4.logger_('main segment loader ended');
-
-        _this4.onEndOfStream();
-      });
-      this.mainSegmentLoader_.on('earlyabort', function (event) {
-        // never try to early abort with the new ABR algorithm
-        if (_this4.experimentalBufferBasedABR) {
-          return;
-        }
-
-        _this4.delegateLoaders_('all', ['abort']);
-
-        _this4.blacklistCurrentPlaylist({
-          message: 'Aborted early because there isn\'t enough bandwidth to complete the ' + 'request without rebuffering.'
-        }, ABORT_EARLY_BLACKLIST_SECONDS);
-      });
-
-      var updateCodecs = function updateCodecs() {
-        if (!_this4.sourceUpdater_.hasCreatedSourceBuffers()) {
-          return _this4.tryToCreateSourceBuffers_();
-        }
-
-        var codecs = _this4.getCodecsOrExclude_(); // no codecs means that the playlist was excluded
-
-
-        if (!codecs) {
-          return;
-        }
-
-        _this4.sourceUpdater_.addOrChangeSourceBuffers(codecs);
-      };
-
-      this.mainSegmentLoader_.on('trackinfo', updateCodecs);
-      this.audioSegmentLoader_.on('trackinfo', updateCodecs);
-      this.mainSegmentLoader_.on('fmp4', function () {
-        if (!_this4.triggeredFmp4Usage) {
-          _this4.tech_.trigger({
-            type: 'usage',
-            name: 'vhs-fmp4'
-          });
-
-          _this4.tech_.trigger({
-            type: 'usage',
-            name: 'hls-fmp4'
-          });
-
-          _this4.triggeredFmp4Usage = true;
-        }
-      });
-      this.audioSegmentLoader_.on('fmp4', function () {
-        if (!_this4.triggeredFmp4Usage) {
-          _this4.tech_.trigger({
-            type: 'usage',
-            name: 'vhs-fmp4'
-          });
-
-          _this4.tech_.trigger({
-            type: 'usage',
-            name: 'hls-fmp4'
-          });
-
-          _this4.triggeredFmp4Usage = true;
-        }
-      });
-      this.audioSegmentLoader_.on('ended', function () {
-        _this4.logger_('audioSegmentLoader ended');
-
-        _this4.onEndOfStream();
-      });
-    };
-
-    _proto.mediaSecondsLoaded_ = function mediaSecondsLoaded_() {
-      return Math.max(this.audioSegmentLoader_.mediaSecondsLoaded + this.mainSegmentLoader_.mediaSecondsLoaded);
-    }
-    /**
-     * Call load on our SegmentLoaders
-     */
-    ;
-
-    _proto.load = function load() {
-      this.mainSegmentLoader_.load();
-
-      if (this.mediaTypes_.AUDIO.activePlaylistLoader) {
-        this.audioSegmentLoader_.load();
-      }
-
-      if (this.mediaTypes_.SUBTITLES.activePlaylistLoader) {
-        this.subtitleSegmentLoader_.load();
-      }
-    }
-    /**
-     * Re-tune playback quality level for the current player
-     * conditions without performing destructive actions, like
-     * removing already buffered content
-     *
-     * @private
-     * @deprecated
-     */
-    ;
-
-    _proto.smoothQualityChange_ = function smoothQualityChange_(media) {
-      if (media === void 0) {
-        media = this.selectPlaylist();
-      }
-
-      this.fastQualityChange_(media);
-    }
-    /**
-     * Re-tune playback quality level for the current player
-     * conditions. This method will perform destructive actions like removing
-     * already buffered content in order to readjust the currently active
-     * playlist quickly. This is good for manual quality changes
-     *
-     * @private
-     */
-    ;
-
-    _proto.fastQualityChange_ = function fastQualityChange_(media) {
-      var _this5 = this;
-
-      if (media === void 0) {
-        media = this.selectPlaylist();
-      }
-
-      if (media === this.masterPlaylistLoader_.media()) {
-        this.logger_('skipping fastQualityChange because new media is same as old');
-        return;
-      }
-
-      this.switchMedia_(media, 'fast-quality'); // Delete all buffered data to allow an immediate quality switch, then seek to give
-      // the browser a kick to remove any cached frames from the previous rendtion (.04 seconds
-      // ahead is roughly the minimum that will accomplish this across a variety of content
-      // in IE and Edge, but seeking in place is sufficient on all other browsers)
-      // Edge/IE bug: https://developer.microsoft.com/en-us/microsoft-edge/platform/issues/14600375/
-      // Chrome bug: https://bugs.chromium.org/p/chromium/issues/detail?id=651904
-
-      this.mainSegmentLoader_.resetEverything(function () {
-        // Since this is not a typical seek, we avoid the seekTo method which can cause segments
-        // from the previously enabled rendition to load before the new playlist has finished loading
-        if (videojs.browser.IE_VERSION || videojs.browser.IS_EDGE) {
-          _this5.tech_.setCurrentTime(_this5.tech_.currentTime() + 0.04);
-        } else {
-          _this5.tech_.setCurrentTime(_this5.tech_.currentTime());
-        }
-      }); // don't need to reset audio as it is reset when media changes
-    }
-    /**
-     * Begin playback.
-     */
-    ;
-
-    _proto.play = function play() {
-      if (this.setupFirstPlay()) {
-        return;
-      }
-
-      if (this.tech_.ended()) {
-        this.tech_.setCurrentTime(0);
-      }
-
-      if (this.hasPlayed_) {
-        this.load();
-      }
-
-      var seekable = this.tech_.seekable(); // if the viewer has paused and we fell out of the live window,
-      // seek forward to the live point
-
-      if (this.tech_.duration() === Infinity) {
-        if (this.tech_.currentTime() < seekable.start(0)) {
-          return this.tech_.setCurrentTime(seekable.end(seekable.length - 1));
-        }
-      }
-    }
-    /**
-     * Seek to the latest media position if this is a live video and the
-     * player and video are loaded and initialized.
-     */
-    ;
-
-    _proto.setupFirstPlay = function setupFirstPlay() {
-      var _this6 = this;
-
-      var media = this.masterPlaylistLoader_.media(); // Check that everything is ready to begin buffering for the first call to play
-      //  If 1) there is no active media
-      //     2) the player is paused
-      //     3) the first play has already been setup
-      // then exit early
-
-      if (!media || this.tech_.paused() || this.hasPlayed_) {
-        return false;
-      } // when the video is a live stream
-
-
-      if (!media.endList) {
-        var seekable = this.seekable();
-
-        if (!seekable.length) {
-          // without a seekable range, the player cannot seek to begin buffering at the live
-          // point
-          return false;
-        }
-
-        if (videojs.browser.IE_VERSION && this.tech_.readyState() === 0) {
-          // IE11 throws an InvalidStateError if you try to set currentTime while the
-          // readyState is 0, so it must be delayed until the tech fires loadedmetadata.
-          this.tech_.one('loadedmetadata', function () {
-            _this6.trigger('firstplay');
-
-            _this6.tech_.setCurrentTime(seekable.end(0));
-
-            _this6.hasPlayed_ = true;
-          });
-          return false;
-        } // trigger firstplay to inform the source handler to ignore the next seek event
-
-
-        this.trigger('firstplay'); // seek to the live point
-
-        this.tech_.setCurrentTime(seekable.end(0));
-      }
-
-      this.hasPlayed_ = true; // we can begin loading now that everything is ready
-
-      this.load();
-      return true;
-    }
-    /**
-     * handle the sourceopen event on the MediaSource
-     *
-     * @private
-     */
-    ;
-
-    _proto.handleSourceOpen_ = function handleSourceOpen_() {
-      // Only attempt to create the source buffer if none already exist.
-      // handleSourceOpen is also called when we are "re-opening" a source buffer
-      // after `endOfStream` has been called (in response to a seek for instance)
-      this.tryToCreateSourceBuffers_(); // if autoplay is enabled, begin playback. This is duplicative of
-      // code in video.js but is required because play() must be invoked
-      // *after* the media source has opened.
-
-      if (this.tech_.autoplay()) {
-        var playPromise = this.tech_.play(); // Catch/silence error when a pause interrupts a play request
-        // on browsers which return a promise
-
-        if (typeof playPromise !== 'undefined' && typeof playPromise.then === 'function') {
-          playPromise.then(null, function (e) {});
-        }
-      }
-
-      this.trigger('sourceopen');
-    }
-    /**
-     * handle the sourceended event on the MediaSource
-     *
-     * @private
-     */
-    ;
-
-    _proto.handleSourceEnded_ = function handleSourceEnded_() {
-      if (!this.inbandTextTracks_.metadataTrack_) {
-        return;
-      }
-
-      var cues = this.inbandTextTracks_.metadataTrack_.cues;
-
-      if (!cues || !cues.length) {
-        return;
-      }
-
-      var duration = this.duration();
-      cues[cues.length - 1].endTime = isNaN(duration) || Math.abs(duration) === Infinity ? Number.MAX_VALUE : duration;
-    }
-    /**
-     * handle the durationchange event on the MediaSource
-     *
-     * @private
-     */
-    ;
-
-    _proto.handleDurationChange_ = function handleDurationChange_() {
-      this.tech_.trigger('durationchange');
-    }
-    /**
-     * Calls endOfStream on the media source when all active stream types have called
-     * endOfStream
-     *
-     * @param {string} streamType
-     *        Stream type of the segment loader that called endOfStream
-     * @private
-     */
-    ;
-
-    _proto.onEndOfStream = function onEndOfStream() {
-      var isEndOfStream = this.mainSegmentLoader_.ended_;
-
-      if (this.mediaTypes_.AUDIO.activePlaylistLoader) {
-        var mainMediaInfo = this.mainSegmentLoader_.getCurrentMediaInfo_(); // if the audio playlist loader exists, then alternate audio is active
-
-        if (!mainMediaInfo || mainMediaInfo.hasVideo) {
-          // if we do not know if the main segment loader contains video yet or if we
-          // definitively know the main segment loader contains video, then we need to wait
-          // for both main and audio segment loaders to call endOfStream
-          isEndOfStream = isEndOfStream && this.audioSegmentLoader_.ended_;
-        } else {
-          // otherwise just rely on the audio loader
-          isEndOfStream = this.audioSegmentLoader_.ended_;
-        }
-      }
-
-      if (!isEndOfStream) {
-        return;
-      }
-
-      this.stopABRTimer_();
-      this.sourceUpdater_.endOfStream();
-    }
-    /**
-     * Check if a playlist has stopped being updated
-     *
-     * @param {Object} playlist the media playlist object
-     * @return {boolean} whether the playlist has stopped being updated or not
-     */
-    ;
-
-    _proto.stuckAtPlaylistEnd_ = function stuckAtPlaylistEnd_(playlist) {
-      var seekable = this.seekable();
-
-      if (!seekable.length) {
-        // playlist doesn't have enough information to determine whether we are stuck
-        return false;
-      }
-
-      var expired = this.syncController_.getExpiredTime(playlist, this.duration());
-
-      if (expired === null) {
-        return false;
-      } // does not use the safe live end to calculate playlist end, since we
-      // don't want to say we are stuck while there is still content
-
-
-      var absolutePlaylistEnd = Vhs$1.Playlist.playlistEnd(playlist, expired);
-      var currentTime = this.tech_.currentTime();
-      var buffered = this.tech_.buffered();
-
-      if (!buffered.length) {
-        // return true if the playhead reached the absolute end of the playlist
-        return absolutePlaylistEnd - currentTime <= SAFE_TIME_DELTA;
-      }
-
-      var bufferedEnd = buffered.end(buffered.length - 1); // return true if there is too little buffer left and buffer has reached absolute
-      // end of playlist
-
-      return bufferedEnd - currentTime <= SAFE_TIME_DELTA && absolutePlaylistEnd - bufferedEnd <= SAFE_TIME_DELTA;
-    }
-    /**
-     * Blacklists a playlist when an error occurs for a set amount of time
-     * making it unavailable for selection by the rendition selection algorithm
-     * and then forces a new playlist (rendition) selection.
-     *
-     * @param {Object=} error an optional error that may include the playlist
-     * to blacklist
-     * @param {number=} blacklistDuration an optional number of seconds to blacklist the
-     * playlist
-     */
-    ;
-
-    _proto.blacklistCurrentPlaylist = function blacklistCurrentPlaylist(error, blacklistDuration) {
-      if (error === void 0) {
-        error = {};
-      } // If the `error` was generated by the playlist loader, it will contain
-      // the playlist we were trying to load (but failed) and that should be
-      // blacklisted instead of the currently selected playlist which is likely
-      // out-of-date in this scenario
-
-
-      var currentPlaylist = error.playlist || this.masterPlaylistLoader_.media();
-      blacklistDuration = blacklistDuration || error.blacklistDuration || this.blacklistDuration; // If there is no current playlist, then an error occurred while we were
-      // trying to load the master OR while we were disposing of the tech
-
-      if (!currentPlaylist) {
-        this.error = error;
-
-        if (this.mediaSource.readyState !== 'open') {
-          this.trigger('error');
-        } else {
-          this.sourceUpdater_.endOfStream('network');
-        }
-
-        return;
-      }
-
-      currentPlaylist.playlistErrors_++;
-      var playlists = this.masterPlaylistLoader_.master.playlists;
-      var enabledPlaylists = playlists.filter(isEnabled);
-      var isFinalRendition = enabledPlaylists.length === 1 && enabledPlaylists[0] === currentPlaylist; // Don't blacklist the only playlist unless it was blacklisted
-      // forever
-
-      if (playlists.length === 1 && blacklistDuration !== Infinity) {
-        videojs.log.warn("Problem encountered with playlist " + currentPlaylist.id + ". " + 'Trying again since it is the only playlist.');
-        this.tech_.trigger('retryplaylist'); // if this is a final rendition, we should delay
-
-        return this.masterPlaylistLoader_.load(isFinalRendition);
-      }
-
-      if (isFinalRendition) {
-        // Since we're on the final non-blacklisted playlist, and we're about to blacklist
-        // it, instead of erring the player or retrying this playlist, clear out the current
-        // blacklist. This allows other playlists to be attempted in case any have been
-        // fixed.
-        var reincluded = false;
-        playlists.forEach(function (playlist) {
-          // skip current playlist which is about to be blacklisted
-          if (playlist === currentPlaylist) {
-            return;
-          }
-
-          var excludeUntil = playlist.excludeUntil; // a playlist cannot be reincluded if it wasn't excluded to begin with.
-
-          if (typeof excludeUntil !== 'undefined' && excludeUntil !== Infinity) {
-            reincluded = true;
-            delete playlist.excludeUntil;
-          }
-        });
-
-        if (reincluded) {
-          videojs.log.warn('Removing other playlists from the exclusion list because the last ' + 'rendition is about to be excluded.'); // Technically we are retrying a playlist, in that we are simply retrying a previous
-          // playlist. This is needed for users relying on the retryplaylist event to catch a
-          // case where the player might be stuck and looping through "dead" playlists.
-
-          this.tech_.trigger('retryplaylist');
-        }
-      } // Blacklist this playlist
-
-
-      var excludeUntil;
-
-      if (currentPlaylist.playlistErrors_ > this.maxPlaylistRetries) {
-        excludeUntil = Infinity;
-      } else {
-        excludeUntil = Date.now() + blacklistDuration * 1000;
-      }
-
-      currentPlaylist.excludeUntil = excludeUntil;
-
-      if (error.reason) {
-        currentPlaylist.lastExcludeReason_ = error.reason;
-      }
-
-      this.tech_.trigger('blacklistplaylist');
-      this.tech_.trigger({
-        type: 'usage',
-        name: 'vhs-rendition-blacklisted'
-      });
-      this.tech_.trigger({
-        type: 'usage',
-        name: 'hls-rendition-blacklisted'
-      }); // TODO: should we select a new playlist if this blacklist wasn't for the currentPlaylist?
-      // Would be something like media().id !=== currentPlaylist.id and we  would need something
-      // like `pendingMedia` in playlist loaders to check against that too. This will prevent us
-      // from loading a new playlist on any blacklist.
-      // Select a new playlist
-
-      var nextPlaylist = this.selectPlaylist();
-
-      if (!nextPlaylist) {
-        this.error = 'Playback cannot continue. No available working or supported playlists.';
-        this.trigger('error');
-        return;
-      }
-
-      var logFn = error.internal ? this.logger_ : videojs.log.warn;
-      var errorMessage = error.message ? ' ' + error.message : '';
-      logFn((error.internal ? 'Internal problem' : 'Problem') + " encountered with playlist " + currentPlaylist.id + "." + (errorMessage + " Switching to playlist " + nextPlaylist.id + ".")); // if audio group changed reset audio loaders
-
-      if (nextPlaylist.attributes.AUDIO !== currentPlaylist.attributes.AUDIO) {
-        this.delegateLoaders_('audio', ['abort', 'pause']);
-      } // if subtitle group changed reset subtitle loaders
-
-
-      if (nextPlaylist.attributes.SUBTITLES !== currentPlaylist.attributes.SUBTITLES) {
-        this.delegateLoaders_('subtitle', ['abort', 'pause']);
-      }
-
-      this.delegateLoaders_('main', ['abort', 'pause']);
-      var delayDuration = nextPlaylist.targetDuration / 2 * 1000 || 5 * 1000;
-      var shouldDelay = typeof nextPlaylist.lastRequest === 'number' && Date.now() - nextPlaylist.lastRequest <= delayDuration; // delay if it's a final rendition or if the last refresh is sooner than half targetDuration
-
-      return this.switchMedia_(nextPlaylist, 'exclude', isFinalRendition || shouldDelay);
-    }
-    /**
-     * Pause all segment/playlist loaders
-     */
-    ;
-
-    _proto.pauseLoading = function pauseLoading() {
-      this.delegateLoaders_('all', ['abort', 'pause']);
-      this.stopABRTimer_();
-    }
-    /**
-     * Call a set of functions in order on playlist loaders, segment loaders,
-     * or both types of loaders.
-     *
-     * @param {string} filter
-     *        Filter loaders that should call fnNames using a string. Can be:
-     *        * all - run on all loaders
-     *        * audio - run on all audio loaders
-     *        * subtitle - run on all subtitle loaders
-     *        * main - run on the main/master loaders
-     *
-     * @param {Array|string} fnNames
-     *        A string or array of function names to call.
-     */
-    ;
-
-    _proto.delegateLoaders_ = function delegateLoaders_(filter, fnNames) {
-      var _this7 = this;
-
-      var loaders = [];
-      var dontFilterPlaylist = filter === 'all';
-
-      if (dontFilterPlaylist || filter === 'main') {
-        loaders.push(this.masterPlaylistLoader_);
-      }
-
-      var mediaTypes = [];
-
-      if (dontFilterPlaylist || filter === 'audio') {
-        mediaTypes.push('AUDIO');
-      }
-
-      if (dontFilterPlaylist || filter === 'subtitle') {
-        mediaTypes.push('CLOSED-CAPTIONS');
-        mediaTypes.push('SUBTITLES');
-      }
-
-      mediaTypes.forEach(function (mediaType) {
-        var loader = _this7.mediaTypes_[mediaType] && _this7.mediaTypes_[mediaType].activePlaylistLoader;
-
-        if (loader) {
-          loaders.push(loader);
-        }
-      });
-      ['main', 'audio', 'subtitle'].forEach(function (name) {
-        var loader = _this7[name + "SegmentLoader_"];
-
-        if (loader && (filter === name || filter === 'all')) {
-          loaders.push(loader);
-        }
-      });
-      loaders.forEach(function (loader) {
-        return fnNames.forEach(function (fnName) {
-          if (typeof loader[fnName] === 'function') {
-            loader[fnName]();
-          }
-        });
-      });
-    }
-    /**
-     * set the current time on all segment loaders
-     *
-     * @param {TimeRange} currentTime the current time to set
-     * @return {TimeRange} the current time
-     */
-    ;
-
-    _proto.setCurrentTime = function setCurrentTime(currentTime) {
-      var buffered = findRange(this.tech_.buffered(), currentTime);
-
-      if (!(this.masterPlaylistLoader_ && this.masterPlaylistLoader_.media())) {
-        // return immediately if the metadata is not ready yet
-        return 0;
-      } // it's clearly an edge-case but don't thrown an error if asked to
-      // seek within an empty playlist
-
-
-      if (!this.masterPlaylistLoader_.media().segments) {
-        return 0;
-      } // if the seek location is already buffered, continue buffering as usual
-
-
-      if (buffered && buffered.length) {
-        return currentTime;
-      } // cancel outstanding requests so we begin buffering at the new
-      // location
-
-
-      this.mainSegmentLoader_.resetEverything();
-      this.mainSegmentLoader_.abort();
-
-      if (this.mediaTypes_.AUDIO.activePlaylistLoader) {
-        this.audioSegmentLoader_.resetEverything();
-        this.audioSegmentLoader_.abort();
-      }
-
-      if (this.mediaTypes_.SUBTITLES.activePlaylistLoader) {
-        this.subtitleSegmentLoader_.resetEverything();
-        this.subtitleSegmentLoader_.abort();
-      } // start segment loader loading in case they are paused
-
-
-      this.load();
-    }
-    /**
-     * get the current duration
-     *
-     * @return {TimeRange} the duration
-     */
-    ;
-
-    _proto.duration = function duration() {
-      if (!this.masterPlaylistLoader_) {
-        return 0;
-      }
-
-      var media = this.masterPlaylistLoader_.media();
-
-      if (!media) {
-        // no playlists loaded yet, so can't determine a duration
-        return 0;
-      } // Don't rely on the media source for duration in the case of a live playlist since
-      // setting the native MediaSource's duration to infinity ends up with consequences to
-      // seekable behavior. See https://github.com/w3c/media-source/issues/5 for details.
-      //
-      // This is resolved in the spec by https://github.com/w3c/media-source/pull/92,
-      // however, few browsers have support for setLiveSeekableRange()
-      // https://developer.mozilla.org/en-US/docs/Web/API/MediaSource/setLiveSeekableRange
-      //
-      // Until a time when the duration of the media source can be set to infinity, and a
-      // seekable range specified across browsers, just return Infinity.
-
-
-      if (!media.endList) {
-        return Infinity;
-      } // Since this is a VOD video, it is safe to rely on the media source's duration (if
-      // available). If it's not available, fall back to a playlist-calculated estimate.
-
-
-      if (this.mediaSource) {
-        return this.mediaSource.duration;
-      }
-
-      return Vhs$1.Playlist.duration(media);
-    }
-    /**
-     * check the seekable range
-     *
-     * @return {TimeRange} the seekable range
-     */
-    ;
-
-    _proto.seekable = function seekable() {
-      return this.seekable_;
-    };
-
-    _proto.onSyncInfoUpdate_ = function onSyncInfoUpdate_() {
-      var audioSeekable; // TODO check for creation of both source buffers before updating seekable
-      //
-      // A fix was made to this function where a check for
-      // this.sourceUpdater_.hasCreatedSourceBuffers
-      // was added to ensure that both source buffers were created before seekable was
-      // updated. However, it originally had a bug where it was checking for a true and
-      // returning early instead of checking for false. Setting it to check for false to
-      // return early though created other issues. A call to play() would check for seekable
-      // end without verifying that a seekable range was present. In addition, even checking
-      // for that didn't solve some issues, as handleFirstPlay is sometimes worked around
-      // due to a media update calling load on the segment loaders, skipping a seek to live,
-      // thereby starting live streams at the beginning of the stream rather than at the end.
-      //
-      // This conditional should be fixed to wait for the creation of two source buffers at
-      // the same time as the other sections of code are fixed to properly seek to live and
-      // not throw an error due to checking for a seekable end when no seekable range exists.
-      //
-      // For now, fall back to the older behavior, with the understanding that the seekable
-      // range may not be completely correct, leading to a suboptimal initial live point.
-
-      if (!this.masterPlaylistLoader_) {
-        return;
-      }
-
-      var media = this.masterPlaylistLoader_.media();
-
-      if (!media) {
-        return;
-      }
-
-      var expired = this.syncController_.getExpiredTime(media, this.duration());
-
-      if (expired === null) {
-        // not enough information to update seekable
-        return;
-      }
-
-      var master = this.masterPlaylistLoader_.master;
-      var mainSeekable = Vhs$1.Playlist.seekable(media, expired, Vhs$1.Playlist.liveEdgeDelay(master, media));
-
-      if (mainSeekable.length === 0) {
-        return;
-      }
-
-      if (this.mediaTypes_.AUDIO.activePlaylistLoader) {
-        media = this.mediaTypes_.AUDIO.activePlaylistLoader.media();
-        expired = this.syncController_.getExpiredTime(media, this.duration());
-
-        if (expired === null) {
-          return;
-        }
-
-        audioSeekable = Vhs$1.Playlist.seekable(media, expired, Vhs$1.Playlist.liveEdgeDelay(master, media));
-
-        if (audioSeekable.length === 0) {
-          return;
-        }
-      }
-
-      var oldEnd;
-      var oldStart;
-
-      if (this.seekable_ && this.seekable_.length) {
-        oldEnd = this.seekable_.end(0);
-        oldStart = this.seekable_.start(0);
-      }
-
-      if (!audioSeekable) {
-        // seekable has been calculated based on buffering video data so it
-        // can be returned directly
-        this.seekable_ = mainSeekable;
-      } else if (audioSeekable.start(0) > mainSeekable.end(0) || mainSeekable.start(0) > audioSeekable.end(0)) {
-        // seekables are pretty far off, rely on main
-        this.seekable_ = mainSeekable;
-      } else {
-        this.seekable_ = videojs.createTimeRanges([[audioSeekable.start(0) > mainSeekable.start(0) ? audioSeekable.start(0) : mainSeekable.start(0), audioSeekable.end(0) < mainSeekable.end(0) ? audioSeekable.end(0) : mainSeekable.end(0)]]);
-      } // seekable is the same as last time
-
-
-      if (this.seekable_ && this.seekable_.length) {
-        if (this.seekable_.end(0) === oldEnd && this.seekable_.start(0) === oldStart) {
-          return;
-        }
-      }
-
-      this.logger_("seekable updated [" + printableRange(this.seekable_) + "]");
-      this.tech_.trigger('seekablechanged');
-    }
-    /**
-     * Update the player duration
-     */
-    ;
-
-    _proto.updateDuration = function updateDuration(isLive) {
-      if (this.updateDuration_) {
-        this.mediaSource.removeEventListener('sourceopen', this.updateDuration_);
-        this.updateDuration_ = null;
-      }
-
-      if (this.mediaSource.readyState !== 'open') {
-        this.updateDuration_ = this.updateDuration.bind(this, isLive);
-        this.mediaSource.addEventListener('sourceopen', this.updateDuration_);
-        return;
-      }
-
-      if (isLive) {
-        var seekable = this.seekable();
-
-        if (!seekable.length) {
-          return;
-        } // Even in the case of a live playlist, the native MediaSource's duration should not
-        // be set to Infinity (even though this would be expected for a live playlist), since
-        // setting the native MediaSource's duration to infinity ends up with consequences to
-        // seekable behavior. See https://github.com/w3c/media-source/issues/5 for details.
-        //
-        // This is resolved in the spec by https://github.com/w3c/media-source/pull/92,
-        // however, few browsers have support for setLiveSeekableRange()
-        // https://developer.mozilla.org/en-US/docs/Web/API/MediaSource/setLiveSeekableRange
-        //
-        // Until a time when the duration of the media source can be set to infinity, and a
-        // seekable range specified across browsers, the duration should be greater than or
-        // equal to the last possible seekable value.
-        // MediaSource duration starts as NaN
-        // It is possible (and probable) that this case will never be reached for many
-        // sources, since the MediaSource reports duration as the highest value without
-        // accounting for timestamp offset. For example, if the timestamp offset is -100 and
-        // we buffered times 0 to 100 with real times of 100 to 200, even though current
-        // time will be between 0 and 100, the native media source may report the duration
-        // as 200. However, since we report duration separate from the media source (as
-        // Infinity), and as long as the native media source duration value is greater than
-        // our reported seekable range, seeks will work as expected. The large number as
-        // duration for live is actually a strategy used by some players to work around the
-        // issue of live seekable ranges cited above.
-
-
-        if (isNaN(this.mediaSource.duration) || this.mediaSource.duration < seekable.end(seekable.length - 1)) {
-          this.sourceUpdater_.setDuration(seekable.end(seekable.length - 1));
-        }
-
-        return;
-      }
-
-      var buffered = this.tech_.buffered();
-      var duration = Vhs$1.Playlist.duration(this.masterPlaylistLoader_.media());
-
-      if (buffered.length > 0) {
-        duration = Math.max(duration, buffered.end(buffered.length - 1));
-      }
-
-      if (this.mediaSource.duration !== duration) {
-        this.sourceUpdater_.setDuration(duration);
-      }
-    }
-    /**
-     * dispose of the MasterPlaylistController and everything
-     * that it controls
-     */
-    ;
-
-    _proto.dispose = function dispose() {
-      var _this8 = this;
-
-      this.trigger('dispose');
-      this.decrypter_.terminate();
-      this.masterPlaylistLoader_.dispose();
-      this.mainSegmentLoader_.dispose();
-
-      if (this.loadOnPlay_) {
-        this.tech_.off('play', this.loadOnPlay_);
-      }
-
-      ['AUDIO', 'SUBTITLES'].forEach(function (type) {
-        var groups = _this8.mediaTypes_[type].groups;
-
-        for (var id in groups) {
-          groups[id].forEach(function (group) {
-            if (group.playlistLoader) {
-              group.playlistLoader.dispose();
+        stopRequest() {
+            if (this.request) {
+                const oldRequest = this.request;
+                this.request = null;
+                oldRequest.onreadystatechange = null;
+                oldRequest.abort();
             }
-          });
         }
-      });
-      this.audioSegmentLoader_.dispose();
-      this.subtitleSegmentLoader_.dispose();
-      this.sourceUpdater_.dispose();
-      this.timelineChangeController_.dispose();
-      this.stopABRTimer_();
+        media(playlist) {
+            // getter
+            if (!playlist) {
+                return this.media_;
+            } // setter
 
-      if (this.updateDuration_) {
-        this.mediaSource.removeEventListener('sourceopen', this.updateDuration_);
-      }
+            if (this.state === 'HAVE_NOTHING') {
+                throw new Error('Cannot switch media playlist from ' + this.state);
+            }
+            const startingState = this.state; // find the playlist object if the target playlist has been specified by URI
 
-      this.mediaSource.removeEventListener('durationchange', this.handleDurationChange_); // load the media source into the player
+            if (typeof playlist === 'string') {
+                if (!this.mainPlaylistLoader_.main.playlists[playlist]) {
+                    throw new Error('Unknown playlist URI: ' + playlist);
+                }
+                playlist = this.mainPlaylistLoader_.main.playlists[playlist];
+            }
+            const mediaChange = !this.media_ || playlist.id !== this.media_.id; // switch to previously loaded playlists immediately
 
-      this.mediaSource.removeEventListener('sourceopen', this.handleSourceOpen_);
-      this.mediaSource.removeEventListener('sourceended', this.handleSourceEnded_);
-      this.off();
+            if (mediaChange && this.loadedPlaylists_[playlist.id] && this.loadedPlaylists_[playlist.id].endList) {
+                this.state = 'HAVE_METADATA';
+                this.media_ = playlist; // trigger media change if the active media has been updated
+
+                if (mediaChange) {
+                    this.trigger('mediachanging');
+                    this.trigger('mediachange');
+                }
+                return;
+            } // switching to the active playlist is a no-op
+
+            if (!mediaChange) {
+                return;
+            } // switching from an already loaded playlist
+
+            if (this.media_) {
+                this.trigger('mediachanging');
+            }
+            this.addSidxSegments_(playlist, startingState, sidxChanged => {
+                // everything is ready just continue to haveMetadata
+                this.haveMetadata({
+                    startingState,
+                    playlist
+                });
+            });
+        }
+        haveMetadata({
+                         startingState,
+                         playlist
+                     }) {
+            this.state = 'HAVE_METADATA';
+            this.loadedPlaylists_[playlist.id] = playlist;
+            this.mediaRequest_ = null; // This will trigger loadedplaylist
+
+            this.refreshMedia_(playlist.id); // fire loadedmetadata the first time a media playlist is loaded
+            // to resolve setup of media groups
+
+            if (startingState === 'HAVE_MAIN_MANIFEST') {
+                this.trigger('loadedmetadata');
+            } else {
+                // trigger media change if the active media has been updated
+                this.trigger('mediachange');
+            }
+        }
+        pause() {
+            if (this.mainPlaylistLoader_.createMupOnMedia_) {
+                this.off('loadedmetadata', this.mainPlaylistLoader_.createMupOnMedia_);
+                this.mainPlaylistLoader_.createMupOnMedia_ = null;
+            }
+            this.stopRequest();
+            window.clearTimeout(this.mediaUpdateTimeout);
+            this.mediaUpdateTimeout = null;
+            if (this.isMain_) {
+                window.clearTimeout(this.mainPlaylistLoader_.minimumUpdatePeriodTimeout_);
+                this.mainPlaylistLoader_.minimumUpdatePeriodTimeout_ = null;
+            }
+            if (this.state === 'HAVE_NOTHING') {
+                // If we pause the loader before any data has been retrieved, its as if we never
+                // started, so reset to an unstarted state.
+                this.started = false;
+            }
+        }
+        load(isFinalRendition) {
+            window.clearTimeout(this.mediaUpdateTimeout);
+            this.mediaUpdateTimeout = null;
+            const media = this.media();
+            if (isFinalRendition) {
+                const delay = media ? media.targetDuration / 2 * 1000 : 5 * 1000;
+                this.mediaUpdateTimeout = window.setTimeout(() => this.load(), delay);
+                return;
+            } // because the playlists are internal to the manifest, load should either load the
+            // main manifest, or do nothing but trigger an event
+
+            if (!this.started) {
+                this.start();
+                return;
+            }
+            if (media && !media.endList) {
+                // Check to see if this is the main loader and the MUP was cleared (this happens
+                // when the loader was paused). `media` should be set at this point since one is always
+                // set during `start()`.
+                if (this.isMain_ && !this.minimumUpdatePeriodTimeout_) {
+                    // Trigger minimumUpdatePeriod to refresh the main manifest
+                    this.trigger('minimumUpdatePeriod'); // Since there was no prior minimumUpdatePeriodTimeout it should be recreated
+
+                    this.updateMinimumUpdatePeriodTimeout_();
+                }
+                this.trigger('mediaupdatetimeout');
+            } else {
+                this.trigger('loadedplaylist');
+            }
+        }
+        start() {
+            this.started = true; // We don't need to request the main manifest again
+            // Call this asynchronously to match the xhr request behavior below
+
+            if (!this.isMain_) {
+                this.mediaRequest_ = window.setTimeout(() => this.haveMain_(), 0);
+                return;
+            }
+            this.requestMain_((req, mainChanged) => {
+                this.haveMain_();
+                if (!this.hasPendingRequest() && !this.media_) {
+                    this.media(this.mainPlaylistLoader_.main.playlists[0]);
+                }
+            });
+        }
+        requestMain_(cb) {
+            this.request = this.vhs_.xhr({
+                uri: this.mainPlaylistLoader_.srcUrl,
+                withCredentials: this.withCredentials
+            }, (error, req) => {
+                if (this.requestErrored_(error, req)) {
+                    if (this.state === 'HAVE_NOTHING') {
+                        this.started = false;
+                    }
+                    return;
+                }
+                const mainChanged = req.responseText !== this.mainPlaylistLoader_.mainXml_;
+                this.mainPlaylistLoader_.mainXml_ = req.responseText;
+                if (req.responseHeaders && req.responseHeaders.date) {
+                    this.mainLoaded_ = Date.parse(req.responseHeaders.date);
+                } else {
+                    this.mainLoaded_ = Date.now();
+                }
+                this.mainPlaylistLoader_.srcUrl = resolveManifestRedirect(this.mainPlaylistLoader_.srcUrl, req);
+                if (mainChanged) {
+                    this.handleMain_();
+                    this.syncClientServerClock_(() => {
+                        return cb(req, mainChanged);
+                    });
+                    return;
+                }
+                return cb(req, mainChanged);
+            });
+        }
+        /**
+         * Parses the main xml for UTCTiming node to sync the client clock to the server
+         * clock. If the UTCTiming node requires a HEAD or GET request, that request is made.
+         *
+         * @param {Function} done
+         *        Function to call when clock sync has completed
+         */
+
+        syncClientServerClock_(done) {
+            const utcTiming = parseUTCTiming(this.mainPlaylistLoader_.mainXml_); // No UTCTiming element found in the mpd. Use Date header from mpd request as the
+            // server clock
+
+            if (utcTiming === null) {
+                this.mainPlaylistLoader_.clientOffset_ = this.mainLoaded_ - Date.now();
+                return done();
+            }
+            if (utcTiming.method === 'DIRECT') {
+                this.mainPlaylistLoader_.clientOffset_ = utcTiming.value - Date.now();
+                return done();
+            }
+            this.request = this.vhs_.xhr({
+                uri: resolveUrl(this.mainPlaylistLoader_.srcUrl, utcTiming.value),
+                method: utcTiming.method,
+                withCredentials: this.withCredentials
+            }, (error, req) => {
+                // disposed
+                if (!this.request) {
+                    return;
+                }
+                if (error) {
+                    // sync request failed, fall back to using date header from mpd
+                    // TODO: log warning
+                    this.mainPlaylistLoader_.clientOffset_ = this.mainLoaded_ - Date.now();
+                    return done();
+                }
+                let serverTime;
+                if (utcTiming.method === 'HEAD') {
+                    if (!req.responseHeaders || !req.responseHeaders.date) {
+                        // expected date header not preset, fall back to using date header from mpd
+                        // TODO: log warning
+                        serverTime = this.mainLoaded_;
+                    } else {
+                        serverTime = Date.parse(req.responseHeaders.date);
+                    }
+                } else {
+                    serverTime = Date.parse(req.responseText);
+                }
+                this.mainPlaylistLoader_.clientOffset_ = serverTime - Date.now();
+                done();
+            });
+        }
+        haveMain_() {
+            this.state = 'HAVE_MAIN_MANIFEST';
+            if (this.isMain_) {
+                // We have the main playlist at this point, so
+                // trigger this to allow PlaylistController
+                // to make an initial playlist selection
+                this.trigger('loadedplaylist');
+            } else if (!this.media_) {
+                // no media playlist was specifically selected so select
+                // the one the child playlist loader was created with
+                this.media(this.childPlaylist_);
+            }
+        }
+        handleMain_() {
+            // clear media request
+            this.mediaRequest_ = null;
+            const oldMain = this.mainPlaylistLoader_.main;
+            let newMain = parseMainXml({
+                mainXml: this.mainPlaylistLoader_.mainXml_,
+                srcUrl: this.mainPlaylistLoader_.srcUrl,
+                clientOffset: this.mainPlaylistLoader_.clientOffset_,
+                sidxMapping: this.mainPlaylistLoader_.sidxMapping_,
+                previousManifest: oldMain
+            }); // if we have an old main to compare the new main against
+
+            if (oldMain) {
+                newMain = updateMain(oldMain, newMain, this.mainPlaylistLoader_.sidxMapping_);
+            } // only update main if we have a new main
+
+            this.mainPlaylistLoader_.main = newMain ? newMain : oldMain;
+            const location = this.mainPlaylistLoader_.main.locations && this.mainPlaylistLoader_.main.locations[0];
+            if (location && location !== this.mainPlaylistLoader_.srcUrl) {
+                this.mainPlaylistLoader_.srcUrl = location;
+            }
+            if (!oldMain || newMain && newMain.minimumUpdatePeriod !== oldMain.minimumUpdatePeriod) {
+                this.updateMinimumUpdatePeriodTimeout_();
+            }
+            return Boolean(newMain);
+        }
+        updateMinimumUpdatePeriodTimeout_() {
+            const mpl = this.mainPlaylistLoader_; // cancel any pending creation of mup on media
+            // a new one will be added if needed.
+
+            if (mpl.createMupOnMedia_) {
+                mpl.off('loadedmetadata', mpl.createMupOnMedia_);
+                mpl.createMupOnMedia_ = null;
+            } // clear any pending timeouts
+
+            if (mpl.minimumUpdatePeriodTimeout_) {
+                window.clearTimeout(mpl.minimumUpdatePeriodTimeout_);
+                mpl.minimumUpdatePeriodTimeout_ = null;
+            }
+            let mup = mpl.main && mpl.main.minimumUpdatePeriod; // If the minimumUpdatePeriod has a value of 0, that indicates that the current
+            // MPD has no future validity, so a new one will need to be acquired when new
+            // media segments are to be made available. Thus, we use the target duration
+            // in this case
+
+            if (mup === 0) {
+                if (mpl.media()) {
+                    mup = mpl.media().targetDuration * 1000;
+                } else {
+                    mpl.createMupOnMedia_ = mpl.updateMinimumUpdatePeriodTimeout_;
+                    mpl.one('loadedmetadata', mpl.createMupOnMedia_);
+                }
+            } // if minimumUpdatePeriod is invalid or <= zero, which
+            // can happen when a live video becomes VOD. skip timeout
+            // creation.
+
+            if (typeof mup !== 'number' || mup <= 0) {
+                if (mup < 0) {
+                    this.logger_(`found invalid minimumUpdatePeriod of ${mup}, not setting a timeout`);
+                }
+                return;
+            }
+            this.createMUPTimeout_(mup);
+        }
+        createMUPTimeout_(mup) {
+            const mpl = this.mainPlaylistLoader_;
+            mpl.minimumUpdatePeriodTimeout_ = window.setTimeout(() => {
+                mpl.minimumUpdatePeriodTimeout_ = null;
+                mpl.trigger('minimumUpdatePeriod');
+                mpl.createMUPTimeout_(mup);
+            }, mup);
+        }
+        /**
+         * Sends request to refresh the main xml and updates the parsed main manifest
+         */
+
+        refreshXml_() {
+            this.requestMain_((req, mainChanged) => {
+                if (!mainChanged) {
+                    return;
+                }
+                if (this.media_) {
+                    this.media_ = this.mainPlaylistLoader_.main.playlists[this.media_.id];
+                } // This will filter out updated sidx info from the mapping
+
+                this.mainPlaylistLoader_.sidxMapping_ = filterChangedSidxMappings(this.mainPlaylistLoader_.main, this.mainPlaylistLoader_.sidxMapping_);
+                this.addSidxSegments_(this.media(), this.state, sidxChanged => {
+                    // TODO: do we need to reload the current playlist?
+                    this.refreshMedia_(this.media().id);
+                });
+            });
+        }
+        /**
+         * Refreshes the media playlist by re-parsing the main xml and updating playlist
+         * references. If this is an alternate loader, the updated parsed manifest is retrieved
+         * from the main loader.
+         */
+
+        refreshMedia_(mediaID) {
+            if (!mediaID) {
+                throw new Error('refreshMedia_ must take a media id');
+            } // for main we have to reparse the main xml
+            // to re-create segments based on current timing values
+            // which may change media. We only skip updating the main manifest
+            // if this is the first time this.media_ is being set.
+            // as main was just parsed in that case.
+
+            if (this.media_ && this.isMain_) {
+                this.handleMain_();
+            }
+            const playlists = this.mainPlaylistLoader_.main.playlists;
+            const mediaChanged = !this.media_ || this.media_ !== playlists[mediaID];
+            if (mediaChanged) {
+                this.media_ = playlists[mediaID];
+            } else {
+                this.trigger('playlistunchanged');
+            }
+            if (!this.mediaUpdateTimeout) {
+                const createMediaUpdateTimeout = () => {
+                    if (this.media().endList) {
+                        return;
+                    }
+                    this.mediaUpdateTimeout = window.setTimeout(() => {
+                        this.trigger('mediaupdatetimeout');
+                        createMediaUpdateTimeout();
+                    }, refreshDelay(this.media(), Boolean(mediaChanged)));
+                };
+                createMediaUpdateTimeout();
+            }
+            this.trigger('loadedplaylist');
+        }
     }
-    /**
-     * return the master playlist object if we have one
-     *
-     * @return {Object} the master playlist object that we parsed
-     */
-    ;
-
-    _proto.master = function master() {
-      return this.masterPlaylistLoader_.master;
-    }
-    /**
-     * return the currently selected playlist
-     *
-     * @return {Object} the currently selected playlist object that we parsed
-     */
-    ;
-
-    _proto.media = function media() {
-      // playlist loader will not return media if it has not been fully loaded
-      return this.masterPlaylistLoader_.media() || this.initialMedia_;
+    var Config = {
+        GOAL_BUFFER_LENGTH: 30,
+        MAX_GOAL_BUFFER_LENGTH: 60,
+        BACK_BUFFER_LENGTH: 30,
+        GOAL_BUFFER_LENGTH_RATE: 1,
+        // 0.5 MB/s
+        INITIAL_BANDWIDTH: 4194304,
+        // A fudge factor to apply to advertised playlist bitrates to account for
+        // temporary flucations in client bandwidth
+        BANDWIDTH_VARIANCE: 1.2,
+        // How much of the buffer must be filled before we consider upswitching
+        BUFFER_LOW_WATER_LINE: 0,
+        MAX_BUFFER_LOW_WATER_LINE: 30,
+        // TODO: Remove this when experimentalBufferBasedABR is removed
+        EXPERIMENTAL_MAX_BUFFER_LOW_WATER_LINE: 16,
+        BUFFER_LOW_WATER_LINE_RATE: 1,
+        // If the buffer is greater than the high water line, we won't switch down
+        BUFFER_HIGH_WATER_LINE: 30
+    };
+    const stringToArrayBuffer = string => {
+        const view = new Uint8Array(new ArrayBuffer(string.length));
+        for (let i = 0; i < string.length; i++) {
+            view[i] = string.charCodeAt(i);
+        }
+        return view.buffer;
     };
 
-    _proto.areMediaTypesKnown_ = function areMediaTypesKnown_() {
-      var usingAudioLoader = !!this.mediaTypes_.AUDIO.activePlaylistLoader;
-      var hasMainMediaInfo = !!this.mainSegmentLoader_.getCurrentMediaInfo_(); // if we are not using an audio loader, then we have audio media info
-      // otherwise check on the segment loader.
-
-      var hasAudioMediaInfo = !usingAudioLoader ? true : !!this.audioSegmentLoader_.getCurrentMediaInfo_(); // one or both loaders has not loaded sufficently to get codecs
-
-      if (!hasMainMediaInfo || !hasAudioMediaInfo) {
-        return false;
-      }
-
-      return true;
+    /* global Blob, BlobBuilder, Worker */
+    // unify worker interface
+    const browserWorkerPolyFill = function (workerObj) {
+        // node only supports on/off
+        workerObj.on = workerObj.addEventListener;
+        workerObj.off = workerObj.removeEventListener;
+        return workerObj;
     };
-
-    _proto.getCodecsOrExclude_ = function getCodecsOrExclude_() {
-      var _this9 = this;
-
-      var media = {
-        main: this.mainSegmentLoader_.getCurrentMediaInfo_() || {},
-        audio: this.audioSegmentLoader_.getCurrentMediaInfo_() || {}
-      }; // set "main" media equal to video
-
-      media.video = media.main;
-      var playlistCodecs = codecsForPlaylist(this.master(), this.media());
-      var codecs = {};
-      var usingAudioLoader = !!this.mediaTypes_.AUDIO.activePlaylistLoader;
-
-      if (media.main.hasVideo) {
-        codecs.video = playlistCodecs.video || media.main.videoCodec || DEFAULT_VIDEO_CODEC;
-      }
-
-      if (media.main.isMuxed) {
-        codecs.video += "," + (playlistCodecs.audio || media.main.audioCodec || DEFAULT_AUDIO_CODEC);
-      }
-
-      if (media.main.hasAudio && !media.main.isMuxed || media.audio.hasAudio || usingAudioLoader) {
-        codecs.audio = playlistCodecs.audio || media.main.audioCodec || media.audio.audioCodec || DEFAULT_AUDIO_CODEC; // set audio isFmp4 so we use the correct "supports" function below
-
-        media.audio.isFmp4 = media.main.hasAudio && !media.main.isMuxed ? media.main.isFmp4 : media.audio.isFmp4;
-      } // no codecs, no playback.
-
-
-      if (!codecs.audio && !codecs.video) {
-        this.blacklistCurrentPlaylist({
-          playlist: this.media(),
-          message: 'Could not determine codecs for playlist.',
-          blacklistDuration: Infinity
-        });
-        return;
-      } // fmp4 relies on browser support, while ts relies on muxer support
-
-
-      var supportFunction = function supportFunction(isFmp4, codec) {
-        return isFmp4 ? browserSupportsCodec(codec) : muxerSupportsCodec(codec);
-      };
-
-      var unsupportedCodecs = {};
-      var unsupportedAudio;
-      ['video', 'audio'].forEach(function (type) {
-        if (codecs.hasOwnProperty(type) && !supportFunction(media[type].isFmp4, codecs[type])) {
-          var supporter = media[type].isFmp4 ? 'browser' : 'muxer';
-          unsupportedCodecs[supporter] = unsupportedCodecs[supporter] || [];
-          unsupportedCodecs[supporter].push(codecs[type]);
-
-          if (type === 'audio') {
-            unsupportedAudio = supporter;
-          }
+    const createObjectURL = function (str) {
+        try {
+            return URL.createObjectURL(new Blob([str], {
+                type: 'application/javascript'
+            }));
+        } catch (e) {
+            const blob = new BlobBuilder();
+            blob.append(str);
+            return URL.createObjectURL(blob.getBlob());
         }
-      });
-
-      if (usingAudioLoader && unsupportedAudio && this.media().attributes.AUDIO) {
-        var audioGroup = this.media().attributes.AUDIO;
-        this.master().playlists.forEach(function (variant) {
-          var variantAudioGroup = variant.attributes && variant.attributes.AUDIO;
-
-          if (variantAudioGroup === audioGroup && variant !== _this9.media()) {
-            variant.excludeUntil = Infinity;
-          }
-        });
-        this.logger_("excluding audio group " + audioGroup + " as " + unsupportedAudio + " does not support codec(s): \"" + codecs.audio + "\"");
-      } // if we have any unsupported codecs blacklist this playlist.
-
-
-      if (Object.keys(unsupportedCodecs).length) {
-        var message = Object.keys(unsupportedCodecs).reduce(function (acc, supporter) {
-          if (acc) {
-            acc += ', ';
-          }
-
-          acc += supporter + " does not support codec(s): \"" + unsupportedCodecs[supporter].join(',') + "\"";
-          return acc;
-        }, '') + '.';
-        this.blacklistCurrentPlaylist({
-          playlist: this.media(),
-          internal: true,
-          message: message,
-          blacklistDuration: Infinity
-        });
-        return;
-      } // check if codec switching is happening
-
-
-      if (this.sourceUpdater_.hasCreatedSourceBuffers() && !this.sourceUpdater_.canChangeType()) {
-        var switchMessages = [];
-        ['video', 'audio'].forEach(function (type) {
-          var newCodec = (parseCodecs(_this9.sourceUpdater_.codecs[type] || '')[0] || {}).type;
-          var oldCodec = (parseCodecs(codecs[type] || '')[0] || {}).type;
-
-          if (newCodec && oldCodec && newCodec.toLowerCase() !== oldCodec.toLowerCase()) {
-            switchMessages.push("\"" + _this9.sourceUpdater_.codecs[type] + "\" -> \"" + codecs[type] + "\"");
-          }
-        });
-
-        if (switchMessages.length) {
-          this.blacklistCurrentPlaylist({
-            playlist: this.media(),
-            message: "Codec switching not supported: " + switchMessages.join(', ') + ".",
-            blacklistDuration: Infinity,
-            internal: true
-          });
-          return;
-        }
-      } // TODO: when using the muxer shouldn't we just return
-      // the codecs that the muxer outputs?
-
-
-      return codecs;
-    }
-    /**
-     * Create source buffers and exlude any incompatible renditions.
-     *
-     * @private
-     */
-    ;
-
-    _proto.tryToCreateSourceBuffers_ = function tryToCreateSourceBuffers_() {
-      // media source is not ready yet or sourceBuffers are already
-      // created.
-      if (this.mediaSource.readyState !== 'open' || this.sourceUpdater_.hasCreatedSourceBuffers()) {
-        return;
-      }
-
-      if (!this.areMediaTypesKnown_()) {
-        return;
-      }
-
-      var codecs = this.getCodecsOrExclude_(); // no codecs means that the playlist was excluded
-
-      if (!codecs) {
-        return;
-      }
-
-      this.sourceUpdater_.createSourceBuffers(codecs);
-      var codecString = [codecs.video, codecs.audio].filter(Boolean).join(',');
-      this.excludeIncompatibleVariants_(codecString);
-    }
-    /**
-     * Excludes playlists with codecs that are unsupported by the muxer and browser.
-     */
-    ;
-
-    _proto.excludeUnsupportedVariants_ = function excludeUnsupportedVariants_() {
-      var _this10 = this;
-
-      var playlists = this.master().playlists;
-      var ids = []; // TODO: why don't we have a property to loop through all
-      // playlist? Why did we ever mix indexes and keys?
-
-      Object.keys(playlists).forEach(function (key) {
-        var variant = playlists[key]; // check if we already processed this playlist.
-
-        if (ids.indexOf(variant.id) !== -1) {
-          return;
-        }
-
-        ids.push(variant.id);
-        var codecs = codecsForPlaylist(_this10.master, variant);
-        var unsupported = [];
-
-        if (codecs.audio && !muxerSupportsCodec(codecs.audio) && !browserSupportsCodec(codecs.audio)) {
-          unsupported.push("audio codec " + codecs.audio);
-        }
-
-        if (codecs.video && !muxerSupportsCodec(codecs.video) && !browserSupportsCodec(codecs.video)) {
-          unsupported.push("video codec " + codecs.video);
-        }
-
-        if (codecs.text && codecs.text === 'stpp.ttml.im1t') {
-          unsupported.push("text codec " + codecs.text);
-        }
-
-        if (unsupported.length) {
-          variant.excludeUntil = Infinity;
-
-          _this10.logger_("excluding " + variant.id + " for unsupported: " + unsupported.join(', '));
-        }
-      });
-    }
-    /**
-     * Blacklist playlists that are known to be codec or
-     * stream-incompatible with the SourceBuffer configuration. For
-     * instance, Media Source Extensions would cause the video element to
-     * stall waiting for video data if you switched from a variant with
-     * video and audio to an audio-only one.
-     *
-     * @param {Object} media a media playlist compatible with the current
-     * set of SourceBuffers. Variants in the current master playlist that
-     * do not appear to have compatible codec or stream configurations
-     * will be excluded from the default playlist selection algorithm
-     * indefinitely.
-     * @private
-     */
-    ;
-
-    _proto.excludeIncompatibleVariants_ = function excludeIncompatibleVariants_(codecString) {
-      var _this11 = this;
-
-      var ids = [];
-      var playlists = this.master().playlists;
-      var codecs = unwrapCodecList(parseCodecs(codecString));
-      var codecCount_ = codecCount(codecs);
-      var videoDetails = codecs.video && parseCodecs(codecs.video)[0] || null;
-      var audioDetails = codecs.audio && parseCodecs(codecs.audio)[0] || null;
-      Object.keys(playlists).forEach(function (key) {
-        var variant = playlists[key]; // check if we already processed this playlist.
-        // or it if it is already excluded forever.
-
-        if (ids.indexOf(variant.id) !== -1 || variant.excludeUntil === Infinity) {
-          return;
-        }
-
-        ids.push(variant.id);
-        var blacklistReasons = []; // get codecs from the playlist for this variant
-
-        var variantCodecs = codecsForPlaylist(_this11.masterPlaylistLoader_.master, variant);
-        var variantCodecCount = codecCount(variantCodecs); // if no codecs are listed, we cannot determine that this
-        // variant is incompatible. Wait for mux.js to probe
-
-        if (!variantCodecs.audio && !variantCodecs.video) {
-          return;
-        } // TODO: we can support this by removing the
-        // old media source and creating a new one, but it will take some work.
-        // The number of streams cannot change
-
-
-        if (variantCodecCount !== codecCount_) {
-          blacklistReasons.push("codec count \"" + variantCodecCount + "\" !== \"" + codecCount_ + "\"");
-        } // only exclude playlists by codec change, if codecs cannot switch
-        // during playback.
-
-
-        if (!_this11.sourceUpdater_.canChangeType()) {
-          var variantVideoDetails = variantCodecs.video && parseCodecs(variantCodecs.video)[0] || null;
-          var variantAudioDetails = variantCodecs.audio && parseCodecs(variantCodecs.audio)[0] || null; // the video codec cannot change
-
-          if (variantVideoDetails && videoDetails && variantVideoDetails.type.toLowerCase() !== videoDetails.type.toLowerCase()) {
-            blacklistReasons.push("video codec \"" + variantVideoDetails.type + "\" !== \"" + videoDetails.type + "\"");
-          } // the audio codec cannot change
-
-
-          if (variantAudioDetails && audioDetails && variantAudioDetails.type.toLowerCase() !== audioDetails.type.toLowerCase()) {
-            blacklistReasons.push("audio codec \"" + variantAudioDetails.type + "\" !== \"" + audioDetails.type + "\"");
-          }
-        }
-
-        if (blacklistReasons.length) {
-          variant.excludeUntil = Infinity;
-
-          _this11.logger_("blacklisting " + variant.id + ": " + blacklistReasons.join(' && '));
-        }
-      });
     };
-
-    _proto.updateAdCues_ = function updateAdCues_(media) {
-      var offset = 0;
-      var seekable = this.seekable();
-
-      if (seekable.length) {
-        offset = seekable.start(0);
-      }
-
-      updateAdCues(media, this.cueTagsTrack_, offset);
-    }
-    /**
-     * Calculates the desired forward buffer length based on current time
-     *
-     * @return {number} Desired forward buffer length in seconds
-     */
-    ;
-
-    _proto.goalBufferLength = function goalBufferLength() {
-      var currentTime = this.tech_.currentTime();
-      var initial = Config.GOAL_BUFFER_LENGTH;
-      var rate = Config.GOAL_BUFFER_LENGTH_RATE;
-      var max = Math.max(initial, Config.MAX_GOAL_BUFFER_LENGTH);
-      return Math.min(initial + currentTime * rate, max);
-    }
-    /**
-     * Calculates the desired buffer low water line based on current time
-     *
-     * @return {number} Desired buffer low water line in seconds
-     */
-    ;
-
-    _proto.bufferLowWaterLine = function bufferLowWaterLine() {
-      var currentTime = this.tech_.currentTime();
-      var initial = Config.BUFFER_LOW_WATER_LINE;
-      var rate = Config.BUFFER_LOW_WATER_LINE_RATE;
-      var max = Math.max(initial, Config.MAX_BUFFER_LOW_WATER_LINE);
-      var newMax = Math.max(initial, Config.EXPERIMENTAL_MAX_BUFFER_LOW_WATER_LINE);
-      return Math.min(initial + currentTime * rate, this.experimentalBufferBasedABR ? newMax : max);
-    };
-
-    _proto.bufferHighWaterLine = function bufferHighWaterLine() {
-      return Config.BUFFER_HIGH_WATER_LINE;
-    };
-
-    return MasterPlaylistController;
-  }(videojs.EventTarget);
-  /**
-   * Returns a function that acts as the Enable/disable playlist function.
-   *
-   * @param {PlaylistLoader} loader - The master playlist loader
-   * @param {string} playlistID - id of the playlist
-   * @param {Function} changePlaylistFn - A function to be called after a
-   * playlist's enabled-state has been changed. Will NOT be called if a
-   * playlist's enabled-state is unchanged
-   * @param {boolean=} enable - Value to set the playlist enabled-state to
-   * or if undefined returns the current enabled-state for the playlist
-   * @return {Function} Function for setting/getting enabled
-   */
-
-
-  var enableFunction = function enableFunction(loader, playlistID, changePlaylistFn) {
-    return function (enable) {
-      var playlist = loader.master.playlists[playlistID];
-      var incompatible = isIncompatible(playlist);
-      var currentlyEnabled = isEnabled(playlist);
-
-      if (typeof enable === 'undefined') {
-        return currentlyEnabled;
-      }
-
-      if (enable) {
-        delete playlist.disabled;
-      } else {
-        playlist.disabled = true;
-      }
-
-      if (enable !== currentlyEnabled && !incompatible) {
-        // Ensure the outside world knows about our changes
-        changePlaylistFn();
-
-        if (enable) {
-          loader.trigger('renditionenabled');
-        } else {
-          loader.trigger('renditiondisabled');
-        }
-      }
-
-      return enable;
-    };
-  };
-  /**
-   * The representation object encapsulates the publicly visible information
-   * in a media playlist along with a setter/getter-type function (enabled)
-   * for changing the enabled-state of a particular playlist entry
-   *
-   * @class Representation
-   */
-
-
-  var Representation = function Representation(vhsHandler, playlist, id) {
-    var mpc = vhsHandler.masterPlaylistController_,
-        smoothQualityChange = vhsHandler.options_.smoothQualityChange; // Get a reference to a bound version of the quality change function
-
-    var changeType = smoothQualityChange ? 'smooth' : 'fast';
-    var qualityChangeFunction = mpc[changeType + "QualityChange_"].bind(mpc); // some playlist attributes are optional
-
-    if (playlist.attributes) {
-      var resolution = playlist.attributes.RESOLUTION;
-      this.width = resolution && resolution.width;
-      this.height = resolution && resolution.height;
-      this.bandwidth = playlist.attributes.BANDWIDTH;
-    }
-
-    this.codecs = codecsForPlaylist(mpc.master(), playlist);
-    this.playlist = playlist; // The id is simply the ordinality of the media playlist
-    // within the master playlist
-
-    this.id = id; // Partially-apply the enableFunction to create a playlist-
-    // specific variant
-
-    this.enabled = enableFunction(vhsHandler.playlists, playlist.id, qualityChangeFunction);
-  };
-  /**
-   * A mixin function that adds the `representations` api to an instance
-   * of the VhsHandler class
-   *
-   * @param {VhsHandler} vhsHandler - An instance of VhsHandler to add the
-   * representation API into
-   */
-
-
-  var renditionSelectionMixin = function renditionSelectionMixin(vhsHandler) {
-    // Add a single API-specific function to the VhsHandler instance
-    vhsHandler.representations = function () {
-      var master = vhsHandler.masterPlaylistController_.master();
-      var playlists = isAudioOnly(master) ? vhsHandler.masterPlaylistController_.getAudioTrackPlaylists_() : master.playlists;
-
-      if (!playlists) {
-        return [];
-      }
-
-      return playlists.filter(function (media) {
-        return !isIncompatible(media);
-      }).map(function (e, i) {
-        return new Representation(vhsHandler, e, e.id);
-      });
-    };
-  };
-  /**
-   * @file playback-watcher.js
-   *
-   * Playback starts, and now my watch begins. It shall not end until my death. I shall
-   * take no wait, hold no uncleared timeouts, father no bad seeks. I shall wear no crowns
-   * and win no glory. I shall live and die at my post. I am the corrector of the underflow.
-   * I am the watcher of gaps. I am the shield that guards the realms of seekable. I pledge
-   * my life and honor to the Playback Watch, for this Player and all the Players to come.
-   */
-
-
-  var timerCancelEvents = ['seeking', 'seeked', 'pause', 'playing', 'error'];
-  /**
-   * @class PlaybackWatcher
-   */
-
-  var PlaybackWatcher = /*#__PURE__*/function () {
-    /**
-     * Represents an PlaybackWatcher object.
-     *
-     * @class
-     * @param {Object} options an object that includes the tech and settings
-     */
-    function PlaybackWatcher(options) {
-      var _this = this;
-
-      this.masterPlaylistController_ = options.masterPlaylistController;
-      this.tech_ = options.tech;
-      this.seekable = options.seekable;
-      this.allowSeeksWithinUnsafeLiveWindow = options.allowSeeksWithinUnsafeLiveWindow;
-      this.liveRangeSafeTimeDelta = options.liveRangeSafeTimeDelta;
-      this.media = options.media;
-      this.consecutiveUpdates = 0;
-      this.lastRecordedTime = null;
-      this.timer_ = null;
-      this.checkCurrentTimeTimeout_ = null;
-      this.logger_ = logger('PlaybackWatcher');
-      this.logger_('initialize');
-
-      var playHandler = function playHandler() {
-        return _this.monitorCurrentTime_();
-      };
-
-      var canPlayHandler = function canPlayHandler() {
-        return _this.monitorCurrentTime_();
-      };
-
-      var waitingHandler = function waitingHandler() {
-        return _this.techWaiting_();
-      };
-
-      var cancelTimerHandler = function cancelTimerHandler() {
-        return _this.cancelTimer_();
-      };
-
-      var mpc = this.masterPlaylistController_;
-      var loaderTypes = ['main', 'subtitle', 'audio'];
-      var loaderChecks = {};
-      loaderTypes.forEach(function (type) {
-        loaderChecks[type] = {
-          reset: function reset() {
-            return _this.resetSegmentDownloads_(type);
-          },
-          updateend: function updateend() {
-            return _this.checkSegmentDownloads_(type);
-          }
+    const factory = function (code) {
+        return function () {
+            const objectUrl = createObjectURL(code);
+            const worker = browserWorkerPolyFill(new Worker(objectUrl));
+            worker.objURL = objectUrl;
+            const terminate = worker.terminate;
+            worker.on = worker.addEventListener;
+            worker.off = worker.removeEventListener;
+            worker.terminate = function () {
+                URL.revokeObjectURL(objectUrl);
+                return terminate.call(this);
+            };
+            return worker;
         };
-        mpc[type + "SegmentLoader_"].on('appendsdone', loaderChecks[type].updateend); // If a rendition switch happens during a playback stall where the buffer
-        // isn't changing we want to reset. We cannot assume that the new rendition
-        // will also be stalled, until after new appends.
+    };
+    const transform = function (code) {
+        return `var browserWorkerPolyFill = ${browserWorkerPolyFill.toString()};\n` + 'browserWorkerPolyFill(self);\n' + code;
+    };
+    const getWorkerString = function (fn) {
+        return fn.toString().replace(/^function.+?{/, '').slice(0, -1);
+    };
 
-        mpc[type + "SegmentLoader_"].on('playlistupdate', loaderChecks[type].reset); // Playback stalls should not be detected right after seeking.
-        // This prevents one segment playlists (single vtt or single segment content)
-        // from being detected as stalling. As the buffer will not change in those cases, since
-        // the buffer is the entire video duration.
+    /* rollup-plugin-worker-factory start for worker!/Users/ddashkevich/projects/http-streaming/src/transmuxer-worker.js */
+    const workerCode$1 = transform(getWorkerString(function () {
+        var commonjsGlobal = typeof globalThis !== 'undefined' ? globalThis : typeof window !== 'undefined' ? window : typeof global !== 'undefined' ? global : typeof self !== 'undefined' ? self : {};
+        /**
+         * mux.js
+         *
+         * Copyright (c) Brightcove
+         * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE
+         *
+         * A lightweight readable stream implemention that handles event dispatching.
+         * Objects that inherit from streams should call init in their constructors.
+         */
 
-        _this.tech_.on(['seeked', 'seeking'], loaderChecks[type].reset);
-      });
-      /**
-       * We check if a seek was into a gap through the following steps:
-       * 1. We get a seeking event and we do not get a seeked event. This means that
-       *    a seek was attempted but not completed.
-       * 2. We run `fixesBadSeeks_` on segment loader appends. This means that we already
-       *    removed everything from our buffer and appended a segment, and should be ready
-       *    to check for gaps.
+        var Stream$8 = function () {
+            this.init = function () {
+                var listeners = {};
+                /**
+                 * Add a listener for a specified event type.
+                 * @param type {string} the event name
+                 * @param listener {function} the callback to be invoked when an event of
+                 * the specified type occurs
+                 */
+
+                this.on = function (type, listener) {
+                    if (!listeners[type]) {
+                        listeners[type] = [];
+                    }
+                    listeners[type] = listeners[type].concat(listener);
+                };
+                /**
+                 * Remove a listener for a specified event type.
+                 * @param type {string} the event name
+                 * @param listener {function} a function previously registered for this
+                 * type of event through `on`
+                 */
+
+                this.off = function (type, listener) {
+                    var index;
+                    if (!listeners[type]) {
+                        return false;
+                    }
+                    index = listeners[type].indexOf(listener);
+                    listeners[type] = listeners[type].slice();
+                    listeners[type].splice(index, 1);
+                    return index > -1;
+                };
+                /**
+                 * Trigger an event of the specified type on this stream. Any additional
+                 * arguments to this function are passed as parameters to event listeners.
+                 * @param type {string} the event name
+                 */
+
+                this.trigger = function (type) {
+                    var callbacks, i, length, args;
+                    callbacks = listeners[type];
+                    if (!callbacks) {
+                        return;
+                    } // Slicing the arguments on every invocation of this method
+                    // can add a significant amount of overhead. Avoid the
+                    // intermediate object creation for the common case of a
+                    // single callback argument
+
+                    if (arguments.length === 2) {
+                        length = callbacks.length;
+                        for (i = 0; i < length; ++i) {
+                            callbacks[i].call(this, arguments[1]);
+                        }
+                    } else {
+                        args = [];
+                        i = arguments.length;
+                        for (i = 1; i < arguments.length; ++i) {
+                            args.push(arguments[i]);
+                        }
+                        length = callbacks.length;
+                        for (i = 0; i < length; ++i) {
+                            callbacks[i].apply(this, args);
+                        }
+                    }
+                };
+                /**
+                 * Destroys the stream and cleans up.
+                 */
+
+                this.dispose = function () {
+                    listeners = {};
+                };
+            };
+        };
+        /**
+         * Forwards all `data` events on this stream to the destination stream. The
+         * destination stream should provide a method `push` to receive the data
+         * events as they arrive.
+         * @param destination {stream} the stream that will receive all `data` events
+         * @param autoFlush {boolean} if false, we will not call `flush` on the destination
+         *                            when the current stream emits a 'done' event
+         * @see http://nodejs.org/api/stream.html#stream_readable_pipe_destination_options
+         */
+
+        Stream$8.prototype.pipe = function (destination) {
+            this.on('data', function (data) {
+                destination.push(data);
+            });
+            this.on('done', function (flushSource) {
+                destination.flush(flushSource);
+            });
+            this.on('partialdone', function (flushSource) {
+                destination.partialFlush(flushSource);
+            });
+            this.on('endedtimeline', function (flushSource) {
+                destination.endTimeline(flushSource);
+            });
+            this.on('reset', function (flushSource) {
+                destination.reset(flushSource);
+            });
+            return destination;
+        }; // Default stream functions that are expected to be overridden to perform
+        // actual work. These are provided by the prototype as a sort of no-op
+        // implementation so that we don't have to check for their existence in the
+        // `pipe` function above.
+
+        Stream$8.prototype.push = function (data) {
+            this.trigger('data', data);
+        };
+        Stream$8.prototype.flush = function (flushSource) {
+            this.trigger('done', flushSource);
+        };
+        Stream$8.prototype.partialFlush = function (flushSource) {
+            this.trigger('partialdone', flushSource);
+        };
+        Stream$8.prototype.endTimeline = function (flushSource) {
+            this.trigger('endedtimeline', flushSource);
+        };
+        Stream$8.prototype.reset = function (flushSource) {
+            this.trigger('reset', flushSource);
+        };
+        var stream = Stream$8;
+        var MAX_UINT32$1 = Math.pow(2, 32);
+        var getUint64$3 = function (uint8) {
+            var dv = new DataView(uint8.buffer, uint8.byteOffset, uint8.byteLength);
+            var value;
+            if (dv.getBigUint64) {
+                value = dv.getBigUint64(0);
+                if (value < Number.MAX_SAFE_INTEGER) {
+                    return Number(value);
+                }
+                return value;
+            }
+            return dv.getUint32(0) * MAX_UINT32$1 + dv.getUint32(4);
+        };
+        var numbers = {
+            getUint64: getUint64$3,
+            MAX_UINT32: MAX_UINT32$1
+        };
+        /**
+         * mux.js
+         *
+         * Copyright (c) Brightcove
+         * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE
+         *
+         * Functions that generate fragmented MP4s suitable for use with Media
+         * Source Extensions.
+         */
+
+        var MAX_UINT32 = numbers.MAX_UINT32;
+        var box, dinf, esds, ftyp, mdat, mfhd, minf, moof, moov, mvex, mvhd, trak, tkhd, mdia, mdhd, hdlr, sdtp, stbl, stsd, traf, trex, trun$1, types, MAJOR_BRAND, MINOR_VERSION, AVC1_BRAND, VIDEO_HDLR, AUDIO_HDLR, HDLR_TYPES, VMHD, SMHD, DREF, STCO, STSC, STSZ, STTS; // pre-calculate constants
+
+        (function () {
+            var i;
+            types = {
+                avc1: [],
+                // codingname
+                avcC: [],
+                btrt: [],
+                dinf: [],
+                dref: [],
+                esds: [],
+                ftyp: [],
+                hdlr: [],
+                mdat: [],
+                mdhd: [],
+                mdia: [],
+                mfhd: [],
+                minf: [],
+                moof: [],
+                moov: [],
+                mp4a: [],
+                // codingname
+                mvex: [],
+                mvhd: [],
+                pasp: [],
+                sdtp: [],
+                smhd: [],
+                stbl: [],
+                stco: [],
+                stsc: [],
+                stsd: [],
+                stsz: [],
+                stts: [],
+                styp: [],
+                tfdt: [],
+                tfhd: [],
+                traf: [],
+                trak: [],
+                trun: [],
+                trex: [],
+                tkhd: [],
+                vmhd: []
+            }; // In environments where Uint8Array is undefined (e.g., IE8), skip set up so that we
+            // don't throw an error
+
+            if (typeof Uint8Array === 'undefined') {
+                return;
+            }
+            for (i in types) {
+                if (types.hasOwnProperty(i)) {
+                    types[i] = [i.charCodeAt(0), i.charCodeAt(1), i.charCodeAt(2), i.charCodeAt(3)];
+                }
+            }
+            MAJOR_BRAND = new Uint8Array(['i'.charCodeAt(0), 's'.charCodeAt(0), 'o'.charCodeAt(0), 'm'.charCodeAt(0)]);
+            AVC1_BRAND = new Uint8Array(['a'.charCodeAt(0), 'v'.charCodeAt(0), 'c'.charCodeAt(0), '1'.charCodeAt(0)]);
+            MINOR_VERSION = new Uint8Array([0, 0, 0, 1]);
+            VIDEO_HDLR = new Uint8Array([0x00,
+                // version 0
+                0x00, 0x00, 0x00,
+                // flags
+                0x00, 0x00, 0x00, 0x00,
+                // pre_defined
+                0x76, 0x69, 0x64, 0x65,
+                // handler_type: 'vide'
+                0x00, 0x00, 0x00, 0x00,
+                // reserved
+                0x00, 0x00, 0x00, 0x00,
+                // reserved
+                0x00, 0x00, 0x00, 0x00,
+                // reserved
+                0x56, 0x69, 0x64, 0x65, 0x6f, 0x48, 0x61, 0x6e, 0x64, 0x6c, 0x65, 0x72, 0x00 // name: 'VideoHandler'
+            ]);
+
+            AUDIO_HDLR = new Uint8Array([0x00,
+                // version 0
+                0x00, 0x00, 0x00,
+                // flags
+                0x00, 0x00, 0x00, 0x00,
+                // pre_defined
+                0x73, 0x6f, 0x75, 0x6e,
+                // handler_type: 'soun'
+                0x00, 0x00, 0x00, 0x00,
+                // reserved
+                0x00, 0x00, 0x00, 0x00,
+                // reserved
+                0x00, 0x00, 0x00, 0x00,
+                // reserved
+                0x53, 0x6f, 0x75, 0x6e, 0x64, 0x48, 0x61, 0x6e, 0x64, 0x6c, 0x65, 0x72, 0x00 // name: 'SoundHandler'
+            ]);
+
+            HDLR_TYPES = {
+                video: VIDEO_HDLR,
+                audio: AUDIO_HDLR
+            };
+            DREF = new Uint8Array([0x00,
+                // version 0
+                0x00, 0x00, 0x00,
+                // flags
+                0x00, 0x00, 0x00, 0x01,
+                // entry_count
+                0x00, 0x00, 0x00, 0x0c,
+                // entry_size
+                0x75, 0x72, 0x6c, 0x20,
+                // 'url' type
+                0x00,
+                // version 0
+                0x00, 0x00, 0x01 // entry_flags
+            ]);
+
+            SMHD = new Uint8Array([0x00,
+                // version
+                0x00, 0x00, 0x00,
+                // flags
+                0x00, 0x00,
+                // balance, 0 means centered
+                0x00, 0x00 // reserved
+            ]);
+
+            STCO = new Uint8Array([0x00,
+                // version
+                0x00, 0x00, 0x00,
+                // flags
+                0x00, 0x00, 0x00, 0x00 // entry_count
+            ]);
+
+            STSC = STCO;
+            STSZ = new Uint8Array([0x00,
+                // version
+                0x00, 0x00, 0x00,
+                // flags
+                0x00, 0x00, 0x00, 0x00,
+                // sample_size
+                0x00, 0x00, 0x00, 0x00 // sample_count
+            ]);
+
+            STTS = STCO;
+            VMHD = new Uint8Array([0x00,
+                // version
+                0x00, 0x00, 0x01,
+                // flags
+                0x00, 0x00,
+                // graphicsmode
+                0x00, 0x00, 0x00, 0x00, 0x00, 0x00 // opcolor
+            ]);
+        })();
+
+        box = function (type) {
+            var payload = [],
+                size = 0,
+                i,
+                result,
+                view;
+            for (i = 1; i < arguments.length; i++) {
+                payload.push(arguments[i]);
+            }
+            i = payload.length; // calculate the total size we need to allocate
+
+            while (i--) {
+                size += payload[i].byteLength;
+            }
+            result = new Uint8Array(size + 8);
+            view = new DataView(result.buffer, result.byteOffset, result.byteLength);
+            view.setUint32(0, result.byteLength);
+            result.set(type, 4); // copy the payload into the result
+
+            for (i = 0, size = 8; i < payload.length; i++) {
+                result.set(payload[i], size);
+                size += payload[i].byteLength;
+            }
+            return result;
+        };
+        dinf = function () {
+            return box(types.dinf, box(types.dref, DREF));
+        };
+        esds = function (track) {
+            return box(types.esds, new Uint8Array([0x00,
+                // version
+                0x00, 0x00, 0x00,
+                // flags
+                // ES_Descriptor
+                0x03,
+                // tag, ES_DescrTag
+                0x19,
+                // length
+                0x00, 0x00,
+                // ES_ID
+                0x00,
+                // streamDependenceFlag, URL_flag, reserved, streamPriority
+                // DecoderConfigDescriptor
+                0x04,
+                // tag, DecoderConfigDescrTag
+                0x11,
+                // length
+                0x40,
+                // object type
+                0x15,
+                // streamType
+                0x00, 0x06, 0x00,
+                // bufferSizeDB
+                0x00, 0x00, 0xda, 0xc0,
+                // maxBitrate
+                0x00, 0x00, 0xda, 0xc0,
+                // avgBitrate
+                // DecoderSpecificInfo
+                0x05,
+                // tag, DecoderSpecificInfoTag
+                0x02,
+                // length
+                // ISO/IEC 14496-3, AudioSpecificConfig
+                // for samplingFrequencyIndex see ISO/IEC 13818-7:2006, 8.1.3.2.2, Table 35
+                track.audioobjecttype << 3 | track.samplingfrequencyindex >>> 1, track.samplingfrequencyindex << 7 | track.channelcount << 3, 0x06, 0x01, 0x02 // GASpecificConfig
+            ]));
+        };
+
+        ftyp = function () {
+            return box(types.ftyp, MAJOR_BRAND, MINOR_VERSION, MAJOR_BRAND, AVC1_BRAND);
+        };
+        hdlr = function (type) {
+            return box(types.hdlr, HDLR_TYPES[type]);
+        };
+        mdat = function (data) {
+            return box(types.mdat, data);
+        };
+        mdhd = function (track) {
+            var result = new Uint8Array([0x00,
+                // version 0
+                0x00, 0x00, 0x00,
+                // flags
+                0x00, 0x00, 0x00, 0x02,
+                // creation_time
+                0x00, 0x00, 0x00, 0x03,
+                // modification_time
+                0x00, 0x01, 0x5f, 0x90,
+                // timescale, 90,000 "ticks" per second
+                track.duration >>> 24 & 0xFF, track.duration >>> 16 & 0xFF, track.duration >>> 8 & 0xFF, track.duration & 0xFF,
+                // duration
+                0x55, 0xc4,
+                // 'und' language (undetermined)
+                0x00, 0x00]); // Use the sample rate from the track metadata, when it is
+            // defined. The sample rate can be parsed out of an ADTS header, for
+            // instance.
+
+            if (track.samplerate) {
+                result[12] = track.samplerate >>> 24 & 0xFF;
+                result[13] = track.samplerate >>> 16 & 0xFF;
+                result[14] = track.samplerate >>> 8 & 0xFF;
+                result[15] = track.samplerate & 0xFF;
+            }
+            return box(types.mdhd, result);
+        };
+        mdia = function (track) {
+            return box(types.mdia, mdhd(track), hdlr(track.type), minf(track));
+        };
+        mfhd = function (sequenceNumber) {
+            return box(types.mfhd, new Uint8Array([0x00, 0x00, 0x00, 0x00,
+                // flags
+                (sequenceNumber & 0xFF000000) >> 24, (sequenceNumber & 0xFF0000) >> 16, (sequenceNumber & 0xFF00) >> 8, sequenceNumber & 0xFF // sequence_number
+            ]));
+        };
+
+        minf = function (track) {
+            return box(types.minf, track.type === 'video' ? box(types.vmhd, VMHD) : box(types.smhd, SMHD), dinf(), stbl(track));
+        };
+        moof = function (sequenceNumber, tracks) {
+            var trackFragments = [],
+                i = tracks.length; // build traf boxes for each track fragment
+
+            while (i--) {
+                trackFragments[i] = traf(tracks[i]);
+            }
+            return box.apply(null, [types.moof, mfhd(sequenceNumber)].concat(trackFragments));
+        };
+        /**
+         * Returns a movie box.
+         * @param tracks {array} the tracks associated with this movie
+         * @see ISO/IEC 14496-12:2012(E), section 8.2.1
+         */
+
+        moov = function (tracks) {
+            var i = tracks.length,
+                boxes = [];
+            while (i--) {
+                boxes[i] = trak(tracks[i]);
+            }
+            return box.apply(null, [types.moov, mvhd(0xffffffff)].concat(boxes).concat(mvex(tracks)));
+        };
+        mvex = function (tracks) {
+            var i = tracks.length,
+                boxes = [];
+            while (i--) {
+                boxes[i] = trex(tracks[i]);
+            }
+            return box.apply(null, [types.mvex].concat(boxes));
+        };
+        mvhd = function (duration) {
+            var bytes = new Uint8Array([0x00,
+                // version 0
+                0x00, 0x00, 0x00,
+                // flags
+                0x00, 0x00, 0x00, 0x01,
+                // creation_time
+                0x00, 0x00, 0x00, 0x02,
+                // modification_time
+                0x00, 0x01, 0x5f, 0x90,
+                // timescale, 90,000 "ticks" per second
+                (duration & 0xFF000000) >> 24, (duration & 0xFF0000) >> 16, (duration & 0xFF00) >> 8, duration & 0xFF,
+                // duration
+                0x00, 0x01, 0x00, 0x00,
+                // 1.0 rate
+                0x01, 0x00,
+                // 1.0 volume
+                0x00, 0x00,
+                // reserved
+                0x00, 0x00, 0x00, 0x00,
+                // reserved
+                0x00, 0x00, 0x00, 0x00,
+                // reserved
+                0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x00, 0x00, 0x00,
+                // transformation: unity matrix
+                0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+                // pre_defined
+                0xff, 0xff, 0xff, 0xff // next_track_ID
+            ]);
+
+            return box(types.mvhd, bytes);
+        };
+        sdtp = function (track) {
+            var samples = track.samples || [],
+                bytes = new Uint8Array(4 + samples.length),
+                flags,
+                i; // leave the full box header (4 bytes) all zero
+            // write the sample table
+
+            for (i = 0; i < samples.length; i++) {
+                flags = samples[i].flags;
+                bytes[i + 4] = flags.dependsOn << 4 | flags.isDependedOn << 2 | flags.hasRedundancy;
+            }
+            return box(types.sdtp, bytes);
+        };
+        stbl = function (track) {
+            return box(types.stbl, stsd(track), box(types.stts, STTS), box(types.stsc, STSC), box(types.stsz, STSZ), box(types.stco, STCO));
+        };
+        (function () {
+            var videoSample, audioSample;
+            stsd = function (track) {
+                return box(types.stsd, new Uint8Array([0x00,
+                    // version 0
+                    0x00, 0x00, 0x00,
+                    // flags
+                    0x00, 0x00, 0x00, 0x01]), track.type === 'video' ? videoSample(track) : audioSample(track));
+            };
+            videoSample = function (track) {
+                var sps = track.sps || [],
+                    pps = track.pps || [],
+                    sequenceParameterSets = [],
+                    pictureParameterSets = [],
+                    i,
+                    avc1Box; // assemble the SPSs
+
+                for (i = 0; i < sps.length; i++) {
+                    sequenceParameterSets.push((sps[i].byteLength & 0xFF00) >>> 8);
+                    sequenceParameterSets.push(sps[i].byteLength & 0xFF); // sequenceParameterSetLength
+
+                    sequenceParameterSets = sequenceParameterSets.concat(Array.prototype.slice.call(sps[i])); // SPS
+                } // assemble the PPSs
+
+                for (i = 0; i < pps.length; i++) {
+                    pictureParameterSets.push((pps[i].byteLength & 0xFF00) >>> 8);
+                    pictureParameterSets.push(pps[i].byteLength & 0xFF);
+                    pictureParameterSets = pictureParameterSets.concat(Array.prototype.slice.call(pps[i]));
+                }
+                avc1Box = [types.avc1, new Uint8Array([0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+                    // reserved
+                    0x00, 0x01,
+                    // data_reference_index
+                    0x00, 0x00,
+                    // pre_defined
+                    0x00, 0x00,
+                    // reserved
+                    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+                    // pre_defined
+                    (track.width & 0xff00) >> 8, track.width & 0xff,
+                    // width
+                    (track.height & 0xff00) >> 8, track.height & 0xff,
+                    // height
+                    0x00, 0x48, 0x00, 0x00,
+                    // horizresolution
+                    0x00, 0x48, 0x00, 0x00,
+                    // vertresolution
+                    0x00, 0x00, 0x00, 0x00,
+                    // reserved
+                    0x00, 0x01,
+                    // frame_count
+                    0x13, 0x76, 0x69, 0x64, 0x65, 0x6f, 0x6a, 0x73, 0x2d, 0x63, 0x6f, 0x6e, 0x74, 0x72, 0x69, 0x62, 0x2d, 0x68, 0x6c, 0x73, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+                    // compressorname
+                    0x00, 0x18,
+                    // depth = 24
+                    0x11, 0x11 // pre_defined = -1
+                ]), box(types.avcC, new Uint8Array([0x01,
+                    // configurationVersion
+                    track.profileIdc,
+                    // AVCProfileIndication
+                    track.profileCompatibility,
+                    // profile_compatibility
+                    track.levelIdc,
+                    // AVCLevelIndication
+                    0xff // lengthSizeMinusOne, hard-coded to 4 bytes
+                ].concat([sps.length],
+                    // numOfSequenceParameterSets
+                    sequenceParameterSets,
+                    // "SPS"
+                    [pps.length],
+                    // numOfPictureParameterSets
+                    pictureParameterSets // "PPS"
+                ))), box(types.btrt, new Uint8Array([0x00, 0x1c, 0x9c, 0x80,
+                    // bufferSizeDB
+                    0x00, 0x2d, 0xc6, 0xc0,
+                    // maxBitrate
+                    0x00, 0x2d, 0xc6, 0xc0 // avgBitrate
+                ]))];
+
+                if (track.sarRatio) {
+                    var hSpacing = track.sarRatio[0],
+                        vSpacing = track.sarRatio[1];
+                    avc1Box.push(box(types.pasp, new Uint8Array([(hSpacing & 0xFF000000) >> 24, (hSpacing & 0xFF0000) >> 16, (hSpacing & 0xFF00) >> 8, hSpacing & 0xFF, (vSpacing & 0xFF000000) >> 24, (vSpacing & 0xFF0000) >> 16, (vSpacing & 0xFF00) >> 8, vSpacing & 0xFF])));
+                }
+                return box.apply(null, avc1Box);
+            };
+            audioSample = function (track) {
+                return box(types.mp4a, new Uint8Array([
+                    // SampleEntry, ISO/IEC 14496-12
+                    0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+                    // reserved
+                    0x00, 0x01,
+                    // data_reference_index
+                    // AudioSampleEntry, ISO/IEC 14496-12
+                    0x00, 0x00, 0x00, 0x00,
+                    // reserved
+                    0x00, 0x00, 0x00, 0x00,
+                    // reserved
+                    (track.channelcount & 0xff00) >> 8, track.channelcount & 0xff,
+                    // channelcount
+                    (track.samplesize & 0xff00) >> 8, track.samplesize & 0xff,
+                    // samplesize
+                    0x00, 0x00,
+                    // pre_defined
+                    0x00, 0x00,
+                    // reserved
+                    (track.samplerate & 0xff00) >> 8, track.samplerate & 0xff, 0x00, 0x00 // samplerate, 16.16
+                    // MP4AudioSampleEntry, ISO/IEC 14496-14
+                ]), esds(track));
+            };
+        })();
+        tkhd = function (track) {
+            var result = new Uint8Array([0x00,
+                // version 0
+                0x00, 0x00, 0x07,
+                // flags
+                0x00, 0x00, 0x00, 0x00,
+                // creation_time
+                0x00, 0x00, 0x00, 0x00,
+                // modification_time
+                (track.id & 0xFF000000) >> 24, (track.id & 0xFF0000) >> 16, (track.id & 0xFF00) >> 8, track.id & 0xFF,
+                // track_ID
+                0x00, 0x00, 0x00, 0x00,
+                // reserved
+                (track.duration & 0xFF000000) >> 24, (track.duration & 0xFF0000) >> 16, (track.duration & 0xFF00) >> 8, track.duration & 0xFF,
+                // duration
+                0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+                // reserved
+                0x00, 0x00,
+                // layer
+                0x00, 0x00,
+                // alternate_group
+                0x01, 0x00,
+                // non-audio track volume
+                0x00, 0x00,
+                // reserved
+                0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x00, 0x00, 0x00,
+                // transformation: unity matrix
+                (track.width & 0xFF00) >> 8, track.width & 0xFF, 0x00, 0x00,
+                // width
+                (track.height & 0xFF00) >> 8, track.height & 0xFF, 0x00, 0x00 // height
+            ]);
+
+            return box(types.tkhd, result);
+        };
+        /**
+         * Generate a track fragment (traf) box. A traf box collects metadata
+         * about tracks in a movie fragment (moof) box.
+         */
+
+        traf = function (track) {
+            var trackFragmentHeader, trackFragmentDecodeTime, trackFragmentRun, sampleDependencyTable, dataOffset, upperWordBaseMediaDecodeTime, lowerWordBaseMediaDecodeTime;
+            trackFragmentHeader = box(types.tfhd, new Uint8Array([0x00,
+                // version 0
+                0x00, 0x00, 0x3a,
+                // flags
+                (track.id & 0xFF000000) >> 24, (track.id & 0xFF0000) >> 16, (track.id & 0xFF00) >> 8, track.id & 0xFF,
+                // track_ID
+                0x00, 0x00, 0x00, 0x01,
+                // sample_description_index
+                0x00, 0x00, 0x00, 0x00,
+                // default_sample_duration
+                0x00, 0x00, 0x00, 0x00,
+                // default_sample_size
+                0x00, 0x00, 0x00, 0x00 // default_sample_flags
+            ]));
+
+            upperWordBaseMediaDecodeTime = Math.floor(track.baseMediaDecodeTime / MAX_UINT32);
+            lowerWordBaseMediaDecodeTime = Math.floor(track.baseMediaDecodeTime % MAX_UINT32);
+            trackFragmentDecodeTime = box(types.tfdt, new Uint8Array([0x01,
+                // version 1
+                0x00, 0x00, 0x00,
+                // flags
+                // baseMediaDecodeTime
+                upperWordBaseMediaDecodeTime >>> 24 & 0xFF, upperWordBaseMediaDecodeTime >>> 16 & 0xFF, upperWordBaseMediaDecodeTime >>> 8 & 0xFF, upperWordBaseMediaDecodeTime & 0xFF, lowerWordBaseMediaDecodeTime >>> 24 & 0xFF, lowerWordBaseMediaDecodeTime >>> 16 & 0xFF, lowerWordBaseMediaDecodeTime >>> 8 & 0xFF, lowerWordBaseMediaDecodeTime & 0xFF])); // the data offset specifies the number of bytes from the start of
+            // the containing moof to the first payload byte of the associated
+            // mdat
+
+            dataOffset = 32 +
+                // tfhd
+                20 +
+                // tfdt
+                8 +
+                // traf header
+                16 +
+                // mfhd
+                8 +
+                // moof header
+                8; // mdat header
+            // audio tracks require less metadata
+
+            if (track.type === 'audio') {
+                trackFragmentRun = trun$1(track, dataOffset);
+                return box(types.traf, trackFragmentHeader, trackFragmentDecodeTime, trackFragmentRun);
+            } // video tracks should contain an independent and disposable samples
+            // box (sdtp)
+            // generate one and adjust offsets to match
+
+            sampleDependencyTable = sdtp(track);
+            trackFragmentRun = trun$1(track, sampleDependencyTable.length + dataOffset);
+            return box(types.traf, trackFragmentHeader, trackFragmentDecodeTime, trackFragmentRun, sampleDependencyTable);
+        };
+        /**
+         * Generate a track box.
+         * @param track {object} a track definition
+         * @return {Uint8Array} the track box
+         */
+
+        trak = function (track) {
+            track.duration = track.duration || 0xffffffff;
+            return box(types.trak, tkhd(track), mdia(track));
+        };
+        trex = function (track) {
+            var result = new Uint8Array([0x00,
+                // version 0
+                0x00, 0x00, 0x00,
+                // flags
+                (track.id & 0xFF000000) >> 24, (track.id & 0xFF0000) >> 16, (track.id & 0xFF00) >> 8, track.id & 0xFF,
+                // track_ID
+                0x00, 0x00, 0x00, 0x01,
+                // default_sample_description_index
+                0x00, 0x00, 0x00, 0x00,
+                // default_sample_duration
+                0x00, 0x00, 0x00, 0x00,
+                // default_sample_size
+                0x00, 0x01, 0x00, 0x01 // default_sample_flags
+            ]); // the last two bytes of default_sample_flags is the sample
+            // degradation priority, a hint about the importance of this sample
+            // relative to others. Lower the degradation priority for all sample
+            // types other than video.
+
+            if (track.type !== 'video') {
+                result[result.length - 1] = 0x00;
+            }
+            return box(types.trex, result);
+        };
+        (function () {
+            var audioTrun, videoTrun, trunHeader; // This method assumes all samples are uniform. That is, if a
+            // duration is present for the first sample, it will be present for
+            // all subsequent samples.
+            // see ISO/IEC 14496-12:2012, Section 8.8.8.1
+
+            trunHeader = function (samples, offset) {
+                var durationPresent = 0,
+                    sizePresent = 0,
+                    flagsPresent = 0,
+                    compositionTimeOffset = 0; // trun flag constants
+
+                if (samples.length) {
+                    if (samples[0].duration !== undefined) {
+                        durationPresent = 0x1;
+                    }
+                    if (samples[0].size !== undefined) {
+                        sizePresent = 0x2;
+                    }
+                    if (samples[0].flags !== undefined) {
+                        flagsPresent = 0x4;
+                    }
+                    if (samples[0].compositionTimeOffset !== undefined) {
+                        compositionTimeOffset = 0x8;
+                    }
+                }
+                return [0x00,
+                    // version 0
+                    0x00, durationPresent | sizePresent | flagsPresent | compositionTimeOffset, 0x01,
+                    // flags
+                    (samples.length & 0xFF000000) >>> 24, (samples.length & 0xFF0000) >>> 16, (samples.length & 0xFF00) >>> 8, samples.length & 0xFF,
+                    // sample_count
+                    (offset & 0xFF000000) >>> 24, (offset & 0xFF0000) >>> 16, (offset & 0xFF00) >>> 8, offset & 0xFF // data_offset
+                ];
+            };
+
+            videoTrun = function (track, offset) {
+                var bytesOffest, bytes, header, samples, sample, i;
+                samples = track.samples || [];
+                offset += 8 + 12 + 16 * samples.length;
+                header = trunHeader(samples, offset);
+                bytes = new Uint8Array(header.length + samples.length * 16);
+                bytes.set(header);
+                bytesOffest = header.length;
+                for (i = 0; i < samples.length; i++) {
+                    sample = samples[i];
+                    bytes[bytesOffest++] = (sample.duration & 0xFF000000) >>> 24;
+                    bytes[bytesOffest++] = (sample.duration & 0xFF0000) >>> 16;
+                    bytes[bytesOffest++] = (sample.duration & 0xFF00) >>> 8;
+                    bytes[bytesOffest++] = sample.duration & 0xFF; // sample_duration
+
+                    bytes[bytesOffest++] = (sample.size & 0xFF000000) >>> 24;
+                    bytes[bytesOffest++] = (sample.size & 0xFF0000) >>> 16;
+                    bytes[bytesOffest++] = (sample.size & 0xFF00) >>> 8;
+                    bytes[bytesOffest++] = sample.size & 0xFF; // sample_size
+
+                    bytes[bytesOffest++] = sample.flags.isLeading << 2 | sample.flags.dependsOn;
+                    bytes[bytesOffest++] = sample.flags.isDependedOn << 6 | sample.flags.hasRedundancy << 4 | sample.flags.paddingValue << 1 | sample.flags.isNonSyncSample;
+                    bytes[bytesOffest++] = sample.flags.degradationPriority & 0xF0 << 8;
+                    bytes[bytesOffest++] = sample.flags.degradationPriority & 0x0F; // sample_flags
+
+                    bytes[bytesOffest++] = (sample.compositionTimeOffset & 0xFF000000) >>> 24;
+                    bytes[bytesOffest++] = (sample.compositionTimeOffset & 0xFF0000) >>> 16;
+                    bytes[bytesOffest++] = (sample.compositionTimeOffset & 0xFF00) >>> 8;
+                    bytes[bytesOffest++] = sample.compositionTimeOffset & 0xFF; // sample_composition_time_offset
+                }
+
+                return box(types.trun, bytes);
+            };
+            audioTrun = function (track, offset) {
+                var bytes, bytesOffest, header, samples, sample, i;
+                samples = track.samples || [];
+                offset += 8 + 12 + 8 * samples.length;
+                header = trunHeader(samples, offset);
+                bytes = new Uint8Array(header.length + samples.length * 8);
+                bytes.set(header);
+                bytesOffest = header.length;
+                for (i = 0; i < samples.length; i++) {
+                    sample = samples[i];
+                    bytes[bytesOffest++] = (sample.duration & 0xFF000000) >>> 24;
+                    bytes[bytesOffest++] = (sample.duration & 0xFF0000) >>> 16;
+                    bytes[bytesOffest++] = (sample.duration & 0xFF00) >>> 8;
+                    bytes[bytesOffest++] = sample.duration & 0xFF; // sample_duration
+
+                    bytes[bytesOffest++] = (sample.size & 0xFF000000) >>> 24;
+                    bytes[bytesOffest++] = (sample.size & 0xFF0000) >>> 16;
+                    bytes[bytesOffest++] = (sample.size & 0xFF00) >>> 8;
+                    bytes[bytesOffest++] = sample.size & 0xFF; // sample_size
+                }
+
+                return box(types.trun, bytes);
+            };
+            trun$1 = function (track, offset) {
+                if (track.type === 'audio') {
+                    return audioTrun(track, offset);
+                }
+                return videoTrun(track, offset);
+            };
+        })();
+        var mp4Generator = {
+            ftyp: ftyp,
+            mdat: mdat,
+            moof: moof,
+            moov: moov,
+            initSegment: function (tracks) {
+                var fileType = ftyp(),
+                    movie = moov(tracks),
+                    result;
+                result = new Uint8Array(fileType.byteLength + movie.byteLength);
+                result.set(fileType);
+                result.set(movie, fileType.byteLength);
+                return result;
+            }
+        };
+        /**
+         * mux.js
+         *
+         * Copyright (c) Brightcove
+         * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE
+         */
+            // composed of the nal units that make up that frame
+            // Also keep track of cummulative data about the frame from the nal units such
+            // as the frame duration, starting pts, etc.
+
+        var groupNalsIntoFrames = function (nalUnits) {
+                var i,
+                    currentNal,
+                    currentFrame = [],
+                    frames = []; // TODO added for LHLS, make sure this is OK
+
+                frames.byteLength = 0;
+                frames.nalCount = 0;
+                frames.duration = 0;
+                currentFrame.byteLength = 0;
+                for (i = 0; i < nalUnits.length; i++) {
+                    currentNal = nalUnits[i]; // Split on 'aud'-type nal units
+
+                    if (currentNal.nalUnitType === 'access_unit_delimiter_rbsp') {
+                        // Since the very first nal unit is expected to be an AUD
+                        // only push to the frames array when currentFrame is not empty
+                        if (currentFrame.length) {
+                            currentFrame.duration = currentNal.dts - currentFrame.dts; // TODO added for LHLS, make sure this is OK
+
+                            frames.byteLength += currentFrame.byteLength;
+                            frames.nalCount += currentFrame.length;
+                            frames.duration += currentFrame.duration;
+                            frames.push(currentFrame);
+                        }
+                        currentFrame = [currentNal];
+                        currentFrame.byteLength = currentNal.data.byteLength;
+                        currentFrame.pts = currentNal.pts;
+                        currentFrame.dts = currentNal.dts;
+                    } else {
+                        // Specifically flag key frames for ease of use later
+                        if (currentNal.nalUnitType === 'slice_layer_without_partitioning_rbsp_idr') {
+                            currentFrame.keyFrame = true;
+                        }
+                        currentFrame.duration = currentNal.dts - currentFrame.dts;
+                        currentFrame.byteLength += currentNal.data.byteLength;
+                        currentFrame.push(currentNal);
+                    }
+                } // For the last frame, use the duration of the previous frame if we
+                // have nothing better to go on
+
+                if (frames.length && (!currentFrame.duration || currentFrame.duration <= 0)) {
+                    currentFrame.duration = frames[frames.length - 1].duration;
+                } // Push the final frame
+                // TODO added for LHLS, make sure this is OK
+
+                frames.byteLength += currentFrame.byteLength;
+                frames.nalCount += currentFrame.length;
+                frames.duration += currentFrame.duration;
+                frames.push(currentFrame);
+                return frames;
+            }; // Convert an array of frames into an array of Gop with each Gop being composed
+        // of the frames that make up that Gop
+        // Also keep track of cummulative data about the Gop from the frames such as the
+        // Gop duration, starting pts, etc.
+
+        var groupFramesIntoGops = function (frames) {
+            var i,
+                currentFrame,
+                currentGop = [],
+                gops = []; // We must pre-set some of the values on the Gop since we
+            // keep running totals of these values
+
+            currentGop.byteLength = 0;
+            currentGop.nalCount = 0;
+            currentGop.duration = 0;
+            currentGop.pts = frames[0].pts;
+            currentGop.dts = frames[0].dts; // store some metadata about all the Gops
+
+            gops.byteLength = 0;
+            gops.nalCount = 0;
+            gops.duration = 0;
+            gops.pts = frames[0].pts;
+            gops.dts = frames[0].dts;
+            for (i = 0; i < frames.length; i++) {
+                currentFrame = frames[i];
+                if (currentFrame.keyFrame) {
+                    // Since the very first frame is expected to be an keyframe
+                    // only push to the gops array when currentGop is not empty
+                    if (currentGop.length) {
+                        gops.push(currentGop);
+                        gops.byteLength += currentGop.byteLength;
+                        gops.nalCount += currentGop.nalCount;
+                        gops.duration += currentGop.duration;
+                    }
+                    currentGop = [currentFrame];
+                    currentGop.nalCount = currentFrame.length;
+                    currentGop.byteLength = currentFrame.byteLength;
+                    currentGop.pts = currentFrame.pts;
+                    currentGop.dts = currentFrame.dts;
+                    currentGop.duration = currentFrame.duration;
+                } else {
+                    currentGop.duration += currentFrame.duration;
+                    currentGop.nalCount += currentFrame.length;
+                    currentGop.byteLength += currentFrame.byteLength;
+                    currentGop.push(currentFrame);
+                }
+            }
+            if (gops.length && currentGop.duration <= 0) {
+                currentGop.duration = gops[gops.length - 1].duration;
+            }
+            gops.byteLength += currentGop.byteLength;
+            gops.nalCount += currentGop.nalCount;
+            gops.duration += currentGop.duration; // push the final Gop
+
+            gops.push(currentGop);
+            return gops;
+        };
+        /*
+     * Search for the first keyframe in the GOPs and throw away all frames
+     * until that keyframe. Then extend the duration of the pulled keyframe
+     * and pull the PTS and DTS of the keyframe so that it covers the time
+     * range of the frames that were disposed.
+     *
+     * @param {Array} gops video GOPs
+     * @returns {Array} modified video GOPs
+     */
+
+        var extendFirstKeyFrame = function (gops) {
+            var currentGop;
+            if (!gops[0][0].keyFrame && gops.length > 1) {
+                // Remove the first GOP
+                currentGop = gops.shift();
+                gops.byteLength -= currentGop.byteLength;
+                gops.nalCount -= currentGop.nalCount; // Extend the first frame of what is now the
+                // first gop to cover the time period of the
+                // frames we just removed
+
+                gops[0][0].dts = currentGop.dts;
+                gops[0][0].pts = currentGop.pts;
+                gops[0][0].duration += currentGop.duration;
+            }
+            return gops;
+        };
+        /**
+         * Default sample object
+         * see ISO/IEC 14496-12:2012, section 8.6.4.3
+         */
+
+        var createDefaultSample = function () {
+            return {
+                size: 0,
+                flags: {
+                    isLeading: 0,
+                    dependsOn: 1,
+                    isDependedOn: 0,
+                    hasRedundancy: 0,
+                    degradationPriority: 0,
+                    isNonSyncSample: 1
+                }
+            };
+        };
+        /*
+     * Collates information from a video frame into an object for eventual
+     * entry into an MP4 sample table.
+     *
+     * @param {Object} frame the video frame
+     * @param {Number} dataOffset the byte offset to position the sample
+     * @return {Object} object containing sample table info for a frame
+     */
+
+        var sampleForFrame = function (frame, dataOffset) {
+            var sample = createDefaultSample();
+            sample.dataOffset = dataOffset;
+            sample.compositionTimeOffset = frame.pts - frame.dts;
+            sample.duration = frame.duration;
+            sample.size = 4 * frame.length; // Space for nal unit size
+
+            sample.size += frame.byteLength;
+            if (frame.keyFrame) {
+                sample.flags.dependsOn = 2;
+                sample.flags.isNonSyncSample = 0;
+            }
+            return sample;
+        }; // generate the track's sample table from an array of gops
+
+        var generateSampleTable$1 = function (gops, baseDataOffset) {
+            var h,
+                i,
+                sample,
+                currentGop,
+                currentFrame,
+                dataOffset = baseDataOffset || 0,
+                samples = [];
+            for (h = 0; h < gops.length; h++) {
+                currentGop = gops[h];
+                for (i = 0; i < currentGop.length; i++) {
+                    currentFrame = currentGop[i];
+                    sample = sampleForFrame(currentFrame, dataOffset);
+                    dataOffset += sample.size;
+                    samples.push(sample);
+                }
+            }
+            return samples;
+        }; // generate the track's raw mdat data from an array of gops
+
+        var concatenateNalData = function (gops) {
+            var h,
+                i,
+                j,
+                currentGop,
+                currentFrame,
+                currentNal,
+                dataOffset = 0,
+                nalsByteLength = gops.byteLength,
+                numberOfNals = gops.nalCount,
+                totalByteLength = nalsByteLength + 4 * numberOfNals,
+                data = new Uint8Array(totalByteLength),
+                view = new DataView(data.buffer); // For each Gop..
+
+            for (h = 0; h < gops.length; h++) {
+                currentGop = gops[h]; // For each Frame..
+
+                for (i = 0; i < currentGop.length; i++) {
+                    currentFrame = currentGop[i]; // For each NAL..
+
+                    for (j = 0; j < currentFrame.length; j++) {
+                        currentNal = currentFrame[j];
+                        view.setUint32(dataOffset, currentNal.data.byteLength);
+                        dataOffset += 4;
+                        data.set(currentNal.data, dataOffset);
+                        dataOffset += currentNal.data.byteLength;
+                    }
+                }
+            }
+            return data;
+        }; // generate the track's sample table from a frame
+
+        var generateSampleTableForFrame = function (frame, baseDataOffset) {
+            var sample,
+                dataOffset = baseDataOffset || 0,
+                samples = [];
+            sample = sampleForFrame(frame, dataOffset);
+            samples.push(sample);
+            return samples;
+        }; // generate the track's raw mdat data from a frame
+
+        var concatenateNalDataForFrame = function (frame) {
+            var i,
+                currentNal,
+                dataOffset = 0,
+                nalsByteLength = frame.byteLength,
+                numberOfNals = frame.length,
+                totalByteLength = nalsByteLength + 4 * numberOfNals,
+                data = new Uint8Array(totalByteLength),
+                view = new DataView(data.buffer); // For each NAL..
+
+            for (i = 0; i < frame.length; i++) {
+                currentNal = frame[i];
+                view.setUint32(dataOffset, currentNal.data.byteLength);
+                dataOffset += 4;
+                data.set(currentNal.data, dataOffset);
+                dataOffset += currentNal.data.byteLength;
+            }
+            return data;
+        };
+        var frameUtils$1 = {
+            groupNalsIntoFrames: groupNalsIntoFrames,
+            groupFramesIntoGops: groupFramesIntoGops,
+            extendFirstKeyFrame: extendFirstKeyFrame,
+            generateSampleTable: generateSampleTable$1,
+            concatenateNalData: concatenateNalData,
+            generateSampleTableForFrame: generateSampleTableForFrame,
+            concatenateNalDataForFrame: concatenateNalDataForFrame
+        };
+        /**
+         * mux.js
+         *
+         * Copyright (c) Brightcove
+         * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE
+         */
+
+        var highPrefix = [33, 16, 5, 32, 164, 27];
+        var lowPrefix = [33, 65, 108, 84, 1, 2, 4, 8, 168, 2, 4, 8, 17, 191, 252];
+        var zeroFill = function (count) {
+            var a = [];
+            while (count--) {
+                a.push(0);
+            }
+            return a;
+        };
+        var makeTable = function (metaTable) {
+            return Object.keys(metaTable).reduce(function (obj, key) {
+                obj[key] = new Uint8Array(metaTable[key].reduce(function (arr, part) {
+                    return arr.concat(part);
+                }, []));
+                return obj;
+            }, {});
+        };
+        var silence;
+        var silence_1 = function () {
+            if (!silence) {
+                // Frames-of-silence to use for filling in missing AAC frames
+                var coneOfSilence = {
+                    96000: [highPrefix, [227, 64], zeroFill(154), [56]],
+                    88200: [highPrefix, [231], zeroFill(170), [56]],
+                    64000: [highPrefix, [248, 192], zeroFill(240), [56]],
+                    48000: [highPrefix, [255, 192], zeroFill(268), [55, 148, 128], zeroFill(54), [112]],
+                    44100: [highPrefix, [255, 192], zeroFill(268), [55, 163, 128], zeroFill(84), [112]],
+                    32000: [highPrefix, [255, 192], zeroFill(268), [55, 234], zeroFill(226), [112]],
+                    24000: [highPrefix, [255, 192], zeroFill(268), [55, 255, 128], zeroFill(268), [111, 112], zeroFill(126), [224]],
+                    16000: [highPrefix, [255, 192], zeroFill(268), [55, 255, 128], zeroFill(268), [111, 255], zeroFill(269), [223, 108], zeroFill(195), [1, 192]],
+                    12000: [lowPrefix, zeroFill(268), [3, 127, 248], zeroFill(268), [6, 255, 240], zeroFill(268), [13, 255, 224], zeroFill(268), [27, 253, 128], zeroFill(259), [56]],
+                    11025: [lowPrefix, zeroFill(268), [3, 127, 248], zeroFill(268), [6, 255, 240], zeroFill(268), [13, 255, 224], zeroFill(268), [27, 255, 192], zeroFill(268), [55, 175, 128], zeroFill(108), [112]],
+                    8000: [lowPrefix, zeroFill(268), [3, 121, 16], zeroFill(47), [7]]
+                };
+                silence = makeTable(coneOfSilence);
+            }
+            return silence;
+        };
+        /**
+         * mux.js
+         *
+         * Copyright (c) Brightcove
+         * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE
+         */
+
+        var ONE_SECOND_IN_TS$4 = 90000,
+            // 90kHz clock
+            secondsToVideoTs,
+            secondsToAudioTs,
+            videoTsToSeconds,
+            audioTsToSeconds,
+            audioTsToVideoTs,
+            videoTsToAudioTs,
+            metadataTsToSeconds;
+        secondsToVideoTs = function (seconds) {
+            return seconds * ONE_SECOND_IN_TS$4;
+        };
+        secondsToAudioTs = function (seconds, sampleRate) {
+            return seconds * sampleRate;
+        };
+        videoTsToSeconds = function (timestamp) {
+            return timestamp / ONE_SECOND_IN_TS$4;
+        };
+        audioTsToSeconds = function (timestamp, sampleRate) {
+            return timestamp / sampleRate;
+        };
+        audioTsToVideoTs = function (timestamp, sampleRate) {
+            return secondsToVideoTs(audioTsToSeconds(timestamp, sampleRate));
+        };
+        videoTsToAudioTs = function (timestamp, sampleRate) {
+            return secondsToAudioTs(videoTsToSeconds(timestamp), sampleRate);
+        };
+        /**
+         * Adjust ID3 tag or caption timing information by the timeline pts values
+         * (if keepOriginalTimestamps is false) and convert to seconds
+         */
+
+        metadataTsToSeconds = function (timestamp, timelineStartPts, keepOriginalTimestamps) {
+            return videoTsToSeconds(keepOriginalTimestamps ? timestamp : timestamp - timelineStartPts);
+        };
+        var clock$2 = {
+            ONE_SECOND_IN_TS: ONE_SECOND_IN_TS$4,
+            secondsToVideoTs: secondsToVideoTs,
+            secondsToAudioTs: secondsToAudioTs,
+            videoTsToSeconds: videoTsToSeconds,
+            audioTsToSeconds: audioTsToSeconds,
+            audioTsToVideoTs: audioTsToVideoTs,
+            videoTsToAudioTs: videoTsToAudioTs,
+            metadataTsToSeconds: metadataTsToSeconds
+        };
+        /**
+         * mux.js
+         *
+         * Copyright (c) Brightcove
+         * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE
+         */
+
+        var coneOfSilence = silence_1;
+        var clock$1 = clock$2;
+        /**
+         * Sum the `byteLength` properties of the data in each AAC frame
+         */
+
+        var sumFrameByteLengths = function (array) {
+            var i,
+                currentObj,
+                sum = 0; // sum the byteLength's all each nal unit in the frame
+
+            for (i = 0; i < array.length; i++) {
+                currentObj = array[i];
+                sum += currentObj.data.byteLength;
+            }
+            return sum;
+        }; // Possibly pad (prefix) the audio track with silence if appending this track
+        // would lead to the introduction of a gap in the audio buffer
+
+        var prefixWithSilence = function (track, frames, audioAppendStartTs, videoBaseMediaDecodeTime) {
+            var baseMediaDecodeTimeTs,
+                frameDuration = 0,
+                audioGapDuration = 0,
+                audioFillFrameCount = 0,
+                audioFillDuration = 0,
+                silentFrame,
+                i,
+                firstFrame;
+            if (!frames.length) {
+                return;
+            }
+            baseMediaDecodeTimeTs = clock$1.audioTsToVideoTs(track.baseMediaDecodeTime, track.samplerate); // determine frame clock duration based on sample rate, round up to avoid overfills
+
+            frameDuration = Math.ceil(clock$1.ONE_SECOND_IN_TS / (track.samplerate / 1024));
+            if (audioAppendStartTs && videoBaseMediaDecodeTime) {
+                // insert the shortest possible amount (audio gap or audio to video gap)
+                audioGapDuration = baseMediaDecodeTimeTs - Math.max(audioAppendStartTs, videoBaseMediaDecodeTime); // number of full frames in the audio gap
+
+                audioFillFrameCount = Math.floor(audioGapDuration / frameDuration);
+                audioFillDuration = audioFillFrameCount * frameDuration;
+            } // don't attempt to fill gaps smaller than a single frame or larger
+            // than a half second
+
+            if (audioFillFrameCount < 1 || audioFillDuration > clock$1.ONE_SECOND_IN_TS / 2) {
+                return;
+            }
+            silentFrame = coneOfSilence()[track.samplerate];
+            if (!silentFrame) {
+                // we don't have a silent frame pregenerated for the sample rate, so use a frame
+                // from the content instead
+                silentFrame = frames[0].data;
+            }
+            for (i = 0; i < audioFillFrameCount; i++) {
+                firstFrame = frames[0];
+                frames.splice(0, 0, {
+                    data: silentFrame,
+                    dts: firstFrame.dts - frameDuration,
+                    pts: firstFrame.pts - frameDuration
+                });
+            }
+            track.baseMediaDecodeTime -= Math.floor(clock$1.videoTsToAudioTs(audioFillDuration, track.samplerate));
+            return audioFillDuration;
+        }; // If the audio segment extends before the earliest allowed dts
+        // value, remove AAC frames until starts at or after the earliest
+        // allowed DTS so that we don't end up with a negative baseMedia-
+        // DecodeTime for the audio track
+
+        var trimAdtsFramesByEarliestDts = function (adtsFrames, track, earliestAllowedDts) {
+            if (track.minSegmentDts >= earliestAllowedDts) {
+                return adtsFrames;
+            } // We will need to recalculate the earliest segment Dts
+
+            track.minSegmentDts = Infinity;
+            return adtsFrames.filter(function (currentFrame) {
+                // If this is an allowed frame, keep it and record it's Dts
+                if (currentFrame.dts >= earliestAllowedDts) {
+                    track.minSegmentDts = Math.min(track.minSegmentDts, currentFrame.dts);
+                    track.minSegmentPts = track.minSegmentDts;
+                    return true;
+                } // Otherwise, discard it
+
+                return false;
+            });
+        }; // generate the track's raw mdat data from an array of frames
+
+        var generateSampleTable = function (frames) {
+            var i,
+                currentFrame,
+                samples = [];
+            for (i = 0; i < frames.length; i++) {
+                currentFrame = frames[i];
+                samples.push({
+                    size: currentFrame.data.byteLength,
+                    duration: 1024 // For AAC audio, all samples contain 1024 samples
+                });
+            }
+
+            return samples;
+        }; // generate the track's sample table from an array of frames
+
+        var concatenateFrameData = function (frames) {
+            var i,
+                currentFrame,
+                dataOffset = 0,
+                data = new Uint8Array(sumFrameByteLengths(frames));
+            for (i = 0; i < frames.length; i++) {
+                currentFrame = frames[i];
+                data.set(currentFrame.data, dataOffset);
+                dataOffset += currentFrame.data.byteLength;
+            }
+            return data;
+        };
+        var audioFrameUtils$1 = {
+            prefixWithSilence: prefixWithSilence,
+            trimAdtsFramesByEarliestDts: trimAdtsFramesByEarliestDts,
+            generateSampleTable: generateSampleTable,
+            concatenateFrameData: concatenateFrameData
+        };
+        /**
+         * mux.js
+         *
+         * Copyright (c) Brightcove
+         * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE
+         */
+
+        var ONE_SECOND_IN_TS$3 = clock$2.ONE_SECOND_IN_TS;
+        /**
+         * Store information about the start and end of the track and the
+         * duration for each frame/sample we process in order to calculate
+         * the baseMediaDecodeTime
+         */
+
+        var collectDtsInfo = function (track, data) {
+            if (typeof data.pts === 'number') {
+                if (track.timelineStartInfo.pts === undefined) {
+                    track.timelineStartInfo.pts = data.pts;
+                }
+                if (track.minSegmentPts === undefined) {
+                    track.minSegmentPts = data.pts;
+                } else {
+                    track.minSegmentPts = Math.min(track.minSegmentPts, data.pts);
+                }
+                if (track.maxSegmentPts === undefined) {
+                    track.maxSegmentPts = data.pts;
+                } else {
+                    track.maxSegmentPts = Math.max(track.maxSegmentPts, data.pts);
+                }
+            }
+            if (typeof data.dts === 'number') {
+                if (track.timelineStartInfo.dts === undefined) {
+                    track.timelineStartInfo.dts = data.dts;
+                }
+                if (track.minSegmentDts === undefined) {
+                    track.minSegmentDts = data.dts;
+                } else {
+                    track.minSegmentDts = Math.min(track.minSegmentDts, data.dts);
+                }
+                if (track.maxSegmentDts === undefined) {
+                    track.maxSegmentDts = data.dts;
+                } else {
+                    track.maxSegmentDts = Math.max(track.maxSegmentDts, data.dts);
+                }
+            }
+        };
+        /**
+         * Clear values used to calculate the baseMediaDecodeTime between
+         * tracks
+         */
+
+        var clearDtsInfo = function (track) {
+            delete track.minSegmentDts;
+            delete track.maxSegmentDts;
+            delete track.minSegmentPts;
+            delete track.maxSegmentPts;
+        };
+        /**
+         * Calculate the track's baseMediaDecodeTime based on the earliest
+         * DTS the transmuxer has ever seen and the minimum DTS for the
+         * current track
+         * @param track {object} track metadata configuration
+         * @param keepOriginalTimestamps {boolean} If true, keep the timestamps
+         *        in the source; false to adjust the first segment to start at 0.
+         */
+
+        var calculateTrackBaseMediaDecodeTime = function (track, keepOriginalTimestamps) {
+            var baseMediaDecodeTime,
+                scale,
+                minSegmentDts = track.minSegmentDts; // Optionally adjust the time so the first segment starts at zero.
+
+            if (!keepOriginalTimestamps) {
+                minSegmentDts -= track.timelineStartInfo.dts;
+            } // track.timelineStartInfo.baseMediaDecodeTime is the location, in time, where
+            // we want the start of the first segment to be placed
+
+            baseMediaDecodeTime = track.timelineStartInfo.baseMediaDecodeTime; // Add to that the distance this segment is from the very first
+
+            baseMediaDecodeTime += minSegmentDts; // baseMediaDecodeTime must not become negative
+
+            baseMediaDecodeTime = Math.max(0, baseMediaDecodeTime);
+            if (track.type === 'audio') {
+                // Audio has a different clock equal to the sampling_rate so we need to
+                // scale the PTS values into the clock rate of the track
+                scale = track.samplerate / ONE_SECOND_IN_TS$3;
+                baseMediaDecodeTime *= scale;
+                baseMediaDecodeTime = Math.floor(baseMediaDecodeTime);
+            }
+            return baseMediaDecodeTime;
+        };
+        var trackDecodeInfo$1 = {
+            clearDtsInfo: clearDtsInfo,
+            calculateTrackBaseMediaDecodeTime: calculateTrackBaseMediaDecodeTime,
+            collectDtsInfo: collectDtsInfo
+        };
+        /**
+         * mux.js
+         *
+         * Copyright (c) Brightcove
+         * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE
+         *
+         * Reads in-band caption information from a video elementary
+         * stream. Captions must follow the CEA-708 standard for injection
+         * into an MPEG-2 transport streams.
+         * @see https://en.wikipedia.org/wiki/CEA-708
+         * @see https://www.gpo.gov/fdsys/pkg/CFR-2007-title47-vol1/pdf/CFR-2007-title47-vol1-sec15-119.pdf
+         */
+            // payload type field to indicate how they are to be
+            // interpreted. CEAS-708 caption content is always transmitted with
+            // payload type 0x04.
+
+        var USER_DATA_REGISTERED_ITU_T_T35 = 4,
+            RBSP_TRAILING_BITS = 128;
+        /**
+         * Parse a supplemental enhancement information (SEI) NAL unit.
+         * Stops parsing once a message of type ITU T T35 has been found.
+         *
+         * @param bytes {Uint8Array} the bytes of a SEI NAL unit
+         * @return {object} the parsed SEI payload
+         * @see Rec. ITU-T H.264, 7.3.2.3.1
+         */
+
+        var parseSei = function (bytes) {
+            var i = 0,
+                result = {
+                    payloadType: -1,
+                    payloadSize: 0
+                },
+                payloadType = 0,
+                payloadSize = 0; // go through the sei_rbsp parsing each each individual sei_message
+
+            while (i < bytes.byteLength) {
+                // stop once we have hit the end of the sei_rbsp
+                if (bytes[i] === RBSP_TRAILING_BITS) {
+                    break;
+                } // Parse payload type
+
+                while (bytes[i] === 0xFF) {
+                    payloadType += 255;
+                    i++;
+                }
+                payloadType += bytes[i++]; // Parse payload size
+
+                while (bytes[i] === 0xFF) {
+                    payloadSize += 255;
+                    i++;
+                }
+                payloadSize += bytes[i++]; // this sei_message is a 608/708 caption so save it and break
+                // there can only ever be one caption message in a frame's sei
+
+                if (!result.payload && payloadType === USER_DATA_REGISTERED_ITU_T_T35) {
+                    var userIdentifier = String.fromCharCode(bytes[i + 3], bytes[i + 4], bytes[i + 5], bytes[i + 6]);
+                    if (userIdentifier === 'GA94') {
+                        result.payloadType = payloadType;
+                        result.payloadSize = payloadSize;
+                        result.payload = bytes.subarray(i, i + payloadSize);
+                        break;
+                    } else {
+                        result.payload = void 0;
+                    }
+                } // skip the payload and parse the next message
+
+                i += payloadSize;
+                payloadType = 0;
+                payloadSize = 0;
+            }
+            return result;
+        }; // see ANSI/SCTE 128-1 (2013), section 8.1
+
+        var parseUserData = function (sei) {
+            // itu_t_t35_contry_code must be 181 (United States) for
+            // captions
+            if (sei.payload[0] !== 181) {
+                return null;
+            } // itu_t_t35_provider_code should be 49 (ATSC) for captions
+
+            if ((sei.payload[1] << 8 | sei.payload[2]) !== 49) {
+                return null;
+            } // the user_identifier should be "GA94" to indicate ATSC1 data
+
+            if (String.fromCharCode(sei.payload[3], sei.payload[4], sei.payload[5], sei.payload[6]) !== 'GA94') {
+                return null;
+            } // finally, user_data_type_code should be 0x03 for caption data
+
+            if (sei.payload[7] !== 0x03) {
+                return null;
+            } // return the user_data_type_structure and strip the trailing
+            // marker bits
+
+            return sei.payload.subarray(8, sei.payload.length - 1);
+        }; // see CEA-708-D, section 4.4
+
+        var parseCaptionPackets = function (pts, userData) {
+            var results = [],
+                i,
+                count,
+                offset,
+                data; // if this is just filler, return immediately
+
+            if (!(userData[0] & 0x40)) {
+                return results;
+            } // parse out the cc_data_1 and cc_data_2 fields
+
+            count = userData[0] & 0x1f;
+            for (i = 0; i < count; i++) {
+                offset = i * 3;
+                data = {
+                    type: userData[offset + 2] & 0x03,
+                    pts: pts
+                }; // capture cc data when cc_valid is 1
+
+                if (userData[offset + 2] & 0x04) {
+                    data.ccData = userData[offset + 3] << 8 | userData[offset + 4];
+                    results.push(data);
+                }
+            }
+            return results;
+        };
+        var discardEmulationPreventionBytes$1 = function (data) {
+            var length = data.byteLength,
+                emulationPreventionBytesPositions = [],
+                i = 1,
+                newLength,
+                newData; // Find all `Emulation Prevention Bytes`
+
+            while (i < length - 2) {
+                if (data[i] === 0 && data[i + 1] === 0 && data[i + 2] === 0x03) {
+                    emulationPreventionBytesPositions.push(i + 2);
+                    i += 2;
+                } else {
+                    i++;
+                }
+            } // If no Emulation Prevention Bytes were found just return the original
+            // array
+
+            if (emulationPreventionBytesPositions.length === 0) {
+                return data;
+            } // Create a new array to hold the NAL unit data
+
+            newLength = length - emulationPreventionBytesPositions.length;
+            newData = new Uint8Array(newLength);
+            var sourceIndex = 0;
+            for (i = 0; i < newLength; sourceIndex++, i++) {
+                if (sourceIndex === emulationPreventionBytesPositions[0]) {
+                    // Skip this byte
+                    sourceIndex++; // Remove this position index
+
+                    emulationPreventionBytesPositions.shift();
+                }
+                newData[i] = data[sourceIndex];
+            }
+            return newData;
+        }; // exports
+
+        var captionPacketParser = {
+            parseSei: parseSei,
+            parseUserData: parseUserData,
+            parseCaptionPackets: parseCaptionPackets,
+            discardEmulationPreventionBytes: discardEmulationPreventionBytes$1,
+            USER_DATA_REGISTERED_ITU_T_T35: USER_DATA_REGISTERED_ITU_T_T35
+        };
+        /**
+         * mux.js
+         *
+         * Copyright (c) Brightcove
+         * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE
+         *
+         * Reads in-band caption information from a video elementary
+         * stream. Captions must follow the CEA-708 standard for injection
+         * into an MPEG-2 transport streams.
+         * @see https://en.wikipedia.org/wiki/CEA-708
+         * @see https://www.gpo.gov/fdsys/pkg/CFR-2007-title47-vol1/pdf/CFR-2007-title47-vol1-sec15-119.pdf
+         */
+            // Link To Transport
+            // -----------------
+
+        var Stream$7 = stream;
+        var cea708Parser = captionPacketParser;
+        var CaptionStream$2 = function (options) {
+            options = options || {};
+            CaptionStream$2.prototype.init.call(this); // parse708captions flag, default to true
+
+            this.parse708captions_ = typeof options.parse708captions === 'boolean' ? options.parse708captions : true;
+            this.captionPackets_ = [];
+            this.ccStreams_ = [new Cea608Stream(0, 0),
+                // eslint-disable-line no-use-before-define
+                new Cea608Stream(0, 1),
+                // eslint-disable-line no-use-before-define
+                new Cea608Stream(1, 0),
+                // eslint-disable-line no-use-before-define
+                new Cea608Stream(1, 1) // eslint-disable-line no-use-before-define
+            ];
+
+            if (this.parse708captions_) {
+                this.cc708Stream_ = new Cea708Stream({
+                    captionServices: options.captionServices
+                }); // eslint-disable-line no-use-before-define
+            }
+
+            this.reset(); // forward data and done events from CCs to this CaptionStream
+
+            this.ccStreams_.forEach(function (cc) {
+                cc.on('data', this.trigger.bind(this, 'data'));
+                cc.on('partialdone', this.trigger.bind(this, 'partialdone'));
+                cc.on('done', this.trigger.bind(this, 'done'));
+            }, this);
+            if (this.parse708captions_) {
+                this.cc708Stream_.on('data', this.trigger.bind(this, 'data'));
+                this.cc708Stream_.on('partialdone', this.trigger.bind(this, 'partialdone'));
+                this.cc708Stream_.on('done', this.trigger.bind(this, 'done'));
+            }
+        };
+        CaptionStream$2.prototype = new Stream$7();
+        CaptionStream$2.prototype.push = function (event) {
+            var sei, userData, newCaptionPackets; // only examine SEI NALs
+
+            if (event.nalUnitType !== 'sei_rbsp') {
+                return;
+            } // parse the sei
+
+            sei = cea708Parser.parseSei(event.escapedRBSP); // no payload data, skip
+
+            if (!sei.payload) {
+                return;
+            } // ignore everything but user_data_registered_itu_t_t35
+
+            if (sei.payloadType !== cea708Parser.USER_DATA_REGISTERED_ITU_T_T35) {
+                return;
+            } // parse out the user data payload
+
+            userData = cea708Parser.parseUserData(sei); // ignore unrecognized userData
+
+            if (!userData) {
+                return;
+            } // Sometimes, the same segment # will be downloaded twice. To stop the
+            // caption data from being processed twice, we track the latest dts we've
+            // received and ignore everything with a dts before that. However, since
+            // data for a specific dts can be split across packets on either side of
+            // a segment boundary, we need to make sure we *don't* ignore the packets
+            // from the *next* segment that have dts === this.latestDts_. By constantly
+            // tracking the number of packets received with dts === this.latestDts_, we
+            // know how many should be ignored once we start receiving duplicates.
+
+            if (event.dts < this.latestDts_) {
+                // We've started getting older data, so set the flag.
+                this.ignoreNextEqualDts_ = true;
+                return;
+            } else if (event.dts === this.latestDts_ && this.ignoreNextEqualDts_) {
+                this.numSameDts_--;
+                if (!this.numSameDts_) {
+                    // We've received the last duplicate packet, time to start processing again
+                    this.ignoreNextEqualDts_ = false;
+                }
+                return;
+            } // parse out CC data packets and save them for later
+
+            newCaptionPackets = cea708Parser.parseCaptionPackets(event.pts, userData);
+            this.captionPackets_ = this.captionPackets_.concat(newCaptionPackets);
+            if (this.latestDts_ !== event.dts) {
+                this.numSameDts_ = 0;
+            }
+            this.numSameDts_++;
+            this.latestDts_ = event.dts;
+        };
+        CaptionStream$2.prototype.flushCCStreams = function (flushType) {
+            this.ccStreams_.forEach(function (cc) {
+                return flushType === 'flush' ? cc.flush() : cc.partialFlush();
+            }, this);
+        };
+        CaptionStream$2.prototype.flushStream = function (flushType) {
+            // make sure we actually parsed captions before proceeding
+            if (!this.captionPackets_.length) {
+                this.flushCCStreams(flushType);
+                return;
+            } // In Chrome, the Array#sort function is not stable so add a
+            // presortIndex that we can use to ensure we get a stable-sort
+
+            this.captionPackets_.forEach(function (elem, idx) {
+                elem.presortIndex = idx;
+            }); // sort caption byte-pairs based on their PTS values
+
+            this.captionPackets_.sort(function (a, b) {
+                if (a.pts === b.pts) {
+                    return a.presortIndex - b.presortIndex;
+                }
+                return a.pts - b.pts;
+            });
+            this.captionPackets_.forEach(function (packet) {
+                if (packet.type < 2) {
+                    // Dispatch packet to the right Cea608Stream
+                    this.dispatchCea608Packet(packet);
+                } else {
+                    // Dispatch packet to the Cea708Stream
+                    this.dispatchCea708Packet(packet);
+                }
+            }, this);
+            this.captionPackets_.length = 0;
+            this.flushCCStreams(flushType);
+        };
+        CaptionStream$2.prototype.flush = function () {
+            return this.flushStream('flush');
+        }; // Only called if handling partial data
+
+        CaptionStream$2.prototype.partialFlush = function () {
+            return this.flushStream('partialFlush');
+        };
+        CaptionStream$2.prototype.reset = function () {
+            this.latestDts_ = null;
+            this.ignoreNextEqualDts_ = false;
+            this.numSameDts_ = 0;
+            this.activeCea608Channel_ = [null, null];
+            this.ccStreams_.forEach(function (ccStream) {
+                ccStream.reset();
+            });
+        }; // From the CEA-608 spec:
+
+        /*
+     * When XDS sub-packets are interleaved with other services, the end of each sub-packet shall be followed
+     * by a control pair to change to a different service. When any of the control codes from 0x10 to 0x1F is
+     * used to begin a control code pair, it indicates the return to captioning or Text data. The control code pair
+     * and subsequent data should then be processed according to the FCC rules. It may be necessary for the
+     * line 21 data encoder to automatically insert a control code pair (i.e. RCL, RU2, RU3, RU4, RDC, or RTD)
+     * to switch to captioning or Text.
+    */
+        // With that in mind, we ignore any data between an XDS control code and a
+        // subsequent closed-captioning control code.
+
+        CaptionStream$2.prototype.dispatchCea608Packet = function (packet) {
+            // NOTE: packet.type is the CEA608 field
+            if (this.setsTextOrXDSActive(packet)) {
+                this.activeCea608Channel_[packet.type] = null;
+            } else if (this.setsChannel1Active(packet)) {
+                this.activeCea608Channel_[packet.type] = 0;
+            } else if (this.setsChannel2Active(packet)) {
+                this.activeCea608Channel_[packet.type] = 1;
+            }
+            if (this.activeCea608Channel_[packet.type] === null) {
+                // If we haven't received anything to set the active channel, or the
+                // packets are Text/XDS data, discard the data; we don't want jumbled
+                // captions
+                return;
+            }
+            this.ccStreams_[(packet.type << 1) + this.activeCea608Channel_[packet.type]].push(packet);
+        };
+        CaptionStream$2.prototype.setsChannel1Active = function (packet) {
+            return (packet.ccData & 0x7800) === 0x1000;
+        };
+        CaptionStream$2.prototype.setsChannel2Active = function (packet) {
+            return (packet.ccData & 0x7800) === 0x1800;
+        };
+        CaptionStream$2.prototype.setsTextOrXDSActive = function (packet) {
+            return (packet.ccData & 0x7100) === 0x0100 || (packet.ccData & 0x78fe) === 0x102a || (packet.ccData & 0x78fe) === 0x182a;
+        };
+        CaptionStream$2.prototype.dispatchCea708Packet = function (packet) {
+            if (this.parse708captions_) {
+                this.cc708Stream_.push(packet);
+            }
+        }; // ----------------------
+        // Session to Application
+        // ----------------------
+        // This hash maps special and extended character codes to their
+        // proper Unicode equivalent. The first one-byte key is just a
+        // non-standard character code. The two-byte keys that follow are
+        // the extended CEA708 character codes, along with the preceding
+        // 0x10 extended character byte to distinguish these codes from
+        // non-extended character codes. Every CEA708 character code that
+        // is not in this object maps directly to a standard unicode
+        // character code.
+        // The transparent space and non-breaking transparent space are
+        // technically not fully supported since there is no code to
+        // make them transparent, so they have normal non-transparent
+        // stand-ins.
+        // The special closed caption (CC) character isn't a standard
+        // unicode character, so a fairly similar unicode character was
+        // chosen in it's place.
+
+        var CHARACTER_TRANSLATION_708 = {
+            0x7f: 0x266a,
+            // ♪
+            0x1020: 0x20,
+            // Transparent Space
+            0x1021: 0xa0,
+            // Nob-breaking Transparent Space
+            0x1025: 0x2026,
+            // …
+            0x102a: 0x0160,
+            // Š
+            0x102c: 0x0152,
+            // Œ
+            0x1030: 0x2588,
+            // █
+            0x1031: 0x2018,
+            // ‘
+            0x1032: 0x2019,
+            // ’
+            0x1033: 0x201c,
+            // “
+            0x1034: 0x201d,
+            // ”
+            0x1035: 0x2022,
+            // •
+            0x1039: 0x2122,
+            // ™
+            0x103a: 0x0161,
+            // š
+            0x103c: 0x0153,
+            // œ
+            0x103d: 0x2120,
+            // ℠
+            0x103f: 0x0178,
+            // Ÿ
+            0x1076: 0x215b,
+            // ⅛
+            0x1077: 0x215c,
+            // ⅜
+            0x1078: 0x215d,
+            // ⅝
+            0x1079: 0x215e,
+            // ⅞
+            0x107a: 0x23d0,
+            // ⏐
+            0x107b: 0x23a4,
+            // ⎤
+            0x107c: 0x23a3,
+            // ⎣
+            0x107d: 0x23af,
+            // ⎯
+            0x107e: 0x23a6,
+            // ⎦
+            0x107f: 0x23a1,
+            // ⎡
+            0x10a0: 0x3138 // ㄸ (CC char)
+        };
+
+        var get708CharFromCode = function (code) {
+            var newCode = CHARACTER_TRANSLATION_708[code] || code;
+            if (code & 0x1000 && code === newCode) {
+                // Invalid extended code
+                return '';
+            }
+            return String.fromCharCode(newCode);
+        };
+        var within708TextBlock = function (b) {
+            return 0x20 <= b && b <= 0x7f || 0xa0 <= b && b <= 0xff;
+        };
+        var Cea708Window = function (windowNum) {
+            this.windowNum = windowNum;
+            this.reset();
+        };
+        Cea708Window.prototype.reset = function () {
+            this.clearText();
+            this.pendingNewLine = false;
+            this.winAttr = {};
+            this.penAttr = {};
+            this.penLoc = {};
+            this.penColor = {}; // These default values are arbitrary,
+            // defineWindow will usually override them
+
+            this.visible = 0;
+            this.rowLock = 0;
+            this.columnLock = 0;
+            this.priority = 0;
+            this.relativePositioning = 0;
+            this.anchorVertical = 0;
+            this.anchorHorizontal = 0;
+            this.anchorPoint = 0;
+            this.rowCount = 1;
+            this.virtualRowCount = this.rowCount + 1;
+            this.columnCount = 41;
+            this.windowStyle = 0;
+            this.penStyle = 0;
+        };
+        Cea708Window.prototype.getText = function () {
+            return this.rows.join('\n');
+        };
+        Cea708Window.prototype.clearText = function () {
+            this.rows = [''];
+            this.rowIdx = 0;
+        };
+        Cea708Window.prototype.newLine = function (pts) {
+            if (this.rows.length >= this.virtualRowCount && typeof this.beforeRowOverflow === 'function') {
+                this.beforeRowOverflow(pts);
+            }
+            if (this.rows.length > 0) {
+                this.rows.push('');
+                this.rowIdx++;
+            } // Show all virtual rows since there's no visible scrolling
+
+            while (this.rows.length > this.virtualRowCount) {
+                this.rows.shift();
+                this.rowIdx--;
+            }
+        };
+        Cea708Window.prototype.isEmpty = function () {
+            if (this.rows.length === 0) {
+                return true;
+            } else if (this.rows.length === 1) {
+                return this.rows[0] === '';
+            }
+            return false;
+        };
+        Cea708Window.prototype.addText = function (text) {
+            this.rows[this.rowIdx] += text;
+        };
+        Cea708Window.prototype.backspace = function () {
+            if (!this.isEmpty()) {
+                var row = this.rows[this.rowIdx];
+                this.rows[this.rowIdx] = row.substr(0, row.length - 1);
+            }
+        };
+        var Cea708Service = function (serviceNum, encoding, stream) {
+            this.serviceNum = serviceNum;
+            this.text = '';
+            this.currentWindow = new Cea708Window(-1);
+            this.windows = [];
+            this.stream = stream; // Try to setup a TextDecoder if an `encoding` value was provided
+
+            if (typeof encoding === 'string') {
+                this.createTextDecoder(encoding);
+            }
+        };
+        /**
+         * Initialize service windows
+         * Must be run before service use
+         *
+         * @param  {Integer}  pts               PTS value
+         * @param  {Function} beforeRowOverflow Function to execute before row overflow of a window
+         */
+
+        Cea708Service.prototype.init = function (pts, beforeRowOverflow) {
+            this.startPts = pts;
+            for (var win = 0; win < 8; win++) {
+                this.windows[win] = new Cea708Window(win);
+                if (typeof beforeRowOverflow === 'function') {
+                    this.windows[win].beforeRowOverflow = beforeRowOverflow;
+                }
+            }
+        };
+        /**
+         * Set current window of service to be affected by commands
+         *
+         * @param  {Integer} windowNum Window number
+         */
+
+        Cea708Service.prototype.setCurrentWindow = function (windowNum) {
+            this.currentWindow = this.windows[windowNum];
+        };
+        /**
+         * Try to create a TextDecoder if it is natively supported
+         */
+
+        Cea708Service.prototype.createTextDecoder = function (encoding) {
+            if (typeof TextDecoder === 'undefined') {
+                this.stream.trigger('log', {
+                    level: 'warn',
+                    message: 'The `encoding` option is unsupported without TextDecoder support'
+                });
+            } else {
+                try {
+                    this.textDecoder_ = new TextDecoder(encoding);
+                } catch (error) {
+                    this.stream.trigger('log', {
+                        level: 'warn',
+                        message: 'TextDecoder could not be created with ' + encoding + ' encoding. ' + error
+                    });
+                }
+            }
+        };
+        var Cea708Stream = function (options) {
+            options = options || {};
+            Cea708Stream.prototype.init.call(this);
+            var self = this;
+            var captionServices = options.captionServices || {};
+            var captionServiceEncodings = {};
+            var serviceProps; // Get service encodings from captionServices option block
+
+            Object.keys(captionServices).forEach(serviceName => {
+                serviceProps = captionServices[serviceName];
+                if (/^SERVICE/.test(serviceName)) {
+                    captionServiceEncodings[serviceName] = serviceProps.encoding;
+                }
+            });
+            this.serviceEncodings = captionServiceEncodings;
+            this.current708Packet = null;
+            this.services = {};
+            this.push = function (packet) {
+                if (packet.type === 3) {
+                    // 708 packet start
+                    self.new708Packet();
+                    self.add708Bytes(packet);
+                } else {
+                    if (self.current708Packet === null) {
+                        // This should only happen at the start of a file if there's no packet start.
+                        self.new708Packet();
+                    }
+                    self.add708Bytes(packet);
+                }
+            };
+        };
+        Cea708Stream.prototype = new Stream$7();
+        /**
+         * Push current 708 packet, create new 708 packet.
+         */
+
+        Cea708Stream.prototype.new708Packet = function () {
+            if (this.current708Packet !== null) {
+                this.push708Packet();
+            }
+            this.current708Packet = {
+                data: [],
+                ptsVals: []
+            };
+        };
+        /**
+         * Add pts and both bytes from packet into current 708 packet.
+         */
+
+        Cea708Stream.prototype.add708Bytes = function (packet) {
+            var data = packet.ccData;
+            var byte0 = data >>> 8;
+            var byte1 = data & 0xff; // I would just keep a list of packets instead of bytes, but it isn't clear in the spec
+            // that service blocks will always line up with byte pairs.
+
+            this.current708Packet.ptsVals.push(packet.pts);
+            this.current708Packet.data.push(byte0);
+            this.current708Packet.data.push(byte1);
+        };
+        /**
+         * Parse completed 708 packet into service blocks and push each service block.
+         */
+
+        Cea708Stream.prototype.push708Packet = function () {
+            var packet708 = this.current708Packet;
+            var packetData = packet708.data;
+            var serviceNum = null;
+            var blockSize = null;
+            var i = 0;
+            var b = packetData[i++];
+            packet708.seq = b >> 6;
+            packet708.sizeCode = b & 0x3f; // 0b00111111;
+
+            for (; i < packetData.length; i++) {
+                b = packetData[i++];
+                serviceNum = b >> 5;
+                blockSize = b & 0x1f; // 0b00011111
+
+                if (serviceNum === 7 && blockSize > 0) {
+                    // Extended service num
+                    b = packetData[i++];
+                    serviceNum = b;
+                }
+                this.pushServiceBlock(serviceNum, i, blockSize);
+                if (blockSize > 0) {
+                    i += blockSize - 1;
+                }
+            }
+        };
+        /**
+         * Parse service block, execute commands, read text.
+         *
+         * Note: While many of these commands serve important purposes,
+         * many others just parse out the parameters or attributes, but
+         * nothing is done with them because this is not a full and complete
+         * implementation of the entire 708 spec.
+         *
+         * @param  {Integer} serviceNum Service number
+         * @param  {Integer} start      Start index of the 708 packet data
+         * @param  {Integer} size       Block size
+         */
+
+        Cea708Stream.prototype.pushServiceBlock = function (serviceNum, start, size) {
+            var b;
+            var i = start;
+            var packetData = this.current708Packet.data;
+            var service = this.services[serviceNum];
+            if (!service) {
+                service = this.initService(serviceNum, i);
+            }
+            for (; i < start + size && i < packetData.length; i++) {
+                b = packetData[i];
+                if (within708TextBlock(b)) {
+                    i = this.handleText(i, service);
+                } else if (b === 0x18) {
+                    i = this.multiByteCharacter(i, service);
+                } else if (b === 0x10) {
+                    i = this.extendedCommands(i, service);
+                } else if (0x80 <= b && b <= 0x87) {
+                    i = this.setCurrentWindow(i, service);
+                } else if (0x98 <= b && b <= 0x9f) {
+                    i = this.defineWindow(i, service);
+                } else if (b === 0x88) {
+                    i = this.clearWindows(i, service);
+                } else if (b === 0x8c) {
+                    i = this.deleteWindows(i, service);
+                } else if (b === 0x89) {
+                    i = this.displayWindows(i, service);
+                } else if (b === 0x8a) {
+                    i = this.hideWindows(i, service);
+                } else if (b === 0x8b) {
+                    i = this.toggleWindows(i, service);
+                } else if (b === 0x97) {
+                    i = this.setWindowAttributes(i, service);
+                } else if (b === 0x90) {
+                    i = this.setPenAttributes(i, service);
+                } else if (b === 0x91) {
+                    i = this.setPenColor(i, service);
+                } else if (b === 0x92) {
+                    i = this.setPenLocation(i, service);
+                } else if (b === 0x8f) {
+                    service = this.reset(i, service);
+                } else if (b === 0x08) {
+                    // BS: Backspace
+                    service.currentWindow.backspace();
+                } else if (b === 0x0c) {
+                    // FF: Form feed
+                    service.currentWindow.clearText();
+                } else if (b === 0x0d) {
+                    // CR: Carriage return
+                    service.currentWindow.pendingNewLine = true;
+                } else if (b === 0x0e) {
+                    // HCR: Horizontal carriage return
+                    service.currentWindow.clearText();
+                } else if (b === 0x8d) {
+                    // DLY: Delay, nothing to do
+                    i++;
+                } else ;
+            }
+        };
+        /**
+         * Execute an extended command
+         *
+         * @param  {Integer} i        Current index in the 708 packet
+         * @param  {Service} service  The service object to be affected
+         * @return {Integer}          New index after parsing
+         */
+
+        Cea708Stream.prototype.extendedCommands = function (i, service) {
+            var packetData = this.current708Packet.data;
+            var b = packetData[++i];
+            if (within708TextBlock(b)) {
+                i = this.handleText(i, service, {
+                    isExtended: true
+                });
+            }
+            return i;
+        };
+        /**
+         * Get PTS value of a given byte index
+         *
+         * @param  {Integer} byteIndex  Index of the byte
+         * @return {Integer}            PTS
+         */
+
+        Cea708Stream.prototype.getPts = function (byteIndex) {
+            // There's 1 pts value per 2 bytes
+            return this.current708Packet.ptsVals[Math.floor(byteIndex / 2)];
+        };
+        /**
+         * Initializes a service
+         *
+         * @param  {Integer} serviceNum Service number
+         * @return {Service}            Initialized service object
+         */
+
+        Cea708Stream.prototype.initService = function (serviceNum, i) {
+            var serviceName = 'SERVICE' + serviceNum;
+            var self = this;
+            var serviceName;
+            var encoding;
+            if (serviceName in this.serviceEncodings) {
+                encoding = this.serviceEncodings[serviceName];
+            }
+            this.services[serviceNum] = new Cea708Service(serviceNum, encoding, self);
+            this.services[serviceNum].init(this.getPts(i), function (pts) {
+                self.flushDisplayed(pts, self.services[serviceNum]);
+            });
+            return this.services[serviceNum];
+        };
+        /**
+         * Execute text writing to current window
+         *
+         * @param  {Integer} i        Current index in the 708 packet
+         * @param  {Service} service  The service object to be affected
+         * @return {Integer}          New index after parsing
+         */
+
+        Cea708Stream.prototype.handleText = function (i, service, options) {
+            var isExtended = options && options.isExtended;
+            var isMultiByte = options && options.isMultiByte;
+            var packetData = this.current708Packet.data;
+            var extended = isExtended ? 0x1000 : 0x0000;
+            var currentByte = packetData[i];
+            var nextByte = packetData[i + 1];
+            var win = service.currentWindow;
+            var char;
+            var charCodeArray; // Use the TextDecoder if one was created for this service
+
+            if (service.textDecoder_ && !isExtended) {
+                if (isMultiByte) {
+                    charCodeArray = [currentByte, nextByte];
+                    i++;
+                } else {
+                    charCodeArray = [currentByte];
+                }
+                char = service.textDecoder_.decode(new Uint8Array(charCodeArray));
+            } else {
+                char = get708CharFromCode(extended | currentByte);
+            }
+            if (win.pendingNewLine && !win.isEmpty()) {
+                win.newLine(this.getPts(i));
+            }
+            win.pendingNewLine = false;
+            win.addText(char);
+            return i;
+        };
+        /**
+         * Handle decoding of multibyte character
+         *
+         * @param  {Integer} i        Current index in the 708 packet
+         * @param  {Service} service  The service object to be affected
+         * @return {Integer}          New index after parsing
+         */
+
+        Cea708Stream.prototype.multiByteCharacter = function (i, service) {
+            var packetData = this.current708Packet.data;
+            var firstByte = packetData[i + 1];
+            var secondByte = packetData[i + 2];
+            if (within708TextBlock(firstByte) && within708TextBlock(secondByte)) {
+                i = this.handleText(++i, service, {
+                    isMultiByte: true
+                });
+            }
+            return i;
+        };
+        /**
+         * Parse and execute the CW# command.
+         *
+         * Set the current window.
+         *
+         * @param  {Integer} i        Current index in the 708 packet
+         * @param  {Service} service  The service object to be affected
+         * @return {Integer}          New index after parsing
+         */
+
+        Cea708Stream.prototype.setCurrentWindow = function (i, service) {
+            var packetData = this.current708Packet.data;
+            var b = packetData[i];
+            var windowNum = b & 0x07;
+            service.setCurrentWindow(windowNum);
+            return i;
+        };
+        /**
+         * Parse and execute the DF# command.
+         *
+         * Define a window and set it as the current window.
+         *
+         * @param  {Integer} i        Current index in the 708 packet
+         * @param  {Service} service  The service object to be affected
+         * @return {Integer}          New index after parsing
+         */
+
+        Cea708Stream.prototype.defineWindow = function (i, service) {
+            var packetData = this.current708Packet.data;
+            var b = packetData[i];
+            var windowNum = b & 0x07;
+            service.setCurrentWindow(windowNum);
+            var win = service.currentWindow;
+            b = packetData[++i];
+            win.visible = (b & 0x20) >> 5; // v
+
+            win.rowLock = (b & 0x10) >> 4; // rl
+
+            win.columnLock = (b & 0x08) >> 3; // cl
+
+            win.priority = b & 0x07; // p
+
+            b = packetData[++i];
+            win.relativePositioning = (b & 0x80) >> 7; // rp
+
+            win.anchorVertical = b & 0x7f; // av
+
+            b = packetData[++i];
+            win.anchorHorizontal = b; // ah
+
+            b = packetData[++i];
+            win.anchorPoint = (b & 0xf0) >> 4; // ap
+
+            win.rowCount = b & 0x0f; // rc
+
+            b = packetData[++i];
+            win.columnCount = b & 0x3f; // cc
+
+            b = packetData[++i];
+            win.windowStyle = (b & 0x38) >> 3; // ws
+
+            win.penStyle = b & 0x07; // ps
+            // The spec says there are (rowCount+1) "virtual rows"
+
+            win.virtualRowCount = win.rowCount + 1;
+            return i;
+        };
+        /**
+         * Parse and execute the SWA command.
+         *
+         * Set attributes of the current window.
+         *
+         * @param  {Integer} i        Current index in the 708 packet
+         * @param  {Service} service  The service object to be affected
+         * @return {Integer}          New index after parsing
+         */
+
+        Cea708Stream.prototype.setWindowAttributes = function (i, service) {
+            var packetData = this.current708Packet.data;
+            var b = packetData[i];
+            var winAttr = service.currentWindow.winAttr;
+            b = packetData[++i];
+            winAttr.fillOpacity = (b & 0xc0) >> 6; // fo
+
+            winAttr.fillRed = (b & 0x30) >> 4; // fr
+
+            winAttr.fillGreen = (b & 0x0c) >> 2; // fg
+
+            winAttr.fillBlue = b & 0x03; // fb
+
+            b = packetData[++i];
+            winAttr.borderType = (b & 0xc0) >> 6; // bt
+
+            winAttr.borderRed = (b & 0x30) >> 4; // br
+
+            winAttr.borderGreen = (b & 0x0c) >> 2; // bg
+
+            winAttr.borderBlue = b & 0x03; // bb
+
+            b = packetData[++i];
+            winAttr.borderType += (b & 0x80) >> 5; // bt
+
+            winAttr.wordWrap = (b & 0x40) >> 6; // ww
+
+            winAttr.printDirection = (b & 0x30) >> 4; // pd
+
+            winAttr.scrollDirection = (b & 0x0c) >> 2; // sd
+
+            winAttr.justify = b & 0x03; // j
+
+            b = packetData[++i];
+            winAttr.effectSpeed = (b & 0xf0) >> 4; // es
+
+            winAttr.effectDirection = (b & 0x0c) >> 2; // ed
+
+            winAttr.displayEffect = b & 0x03; // de
+
+            return i;
+        };
+        /**
+         * Gather text from all displayed windows and push a caption to output.
+         *
+         * @param  {Integer} i        Current index in the 708 packet
+         * @param  {Service} service  The service object to be affected
+         */
+
+        Cea708Stream.prototype.flushDisplayed = function (pts, service) {
+            var displayedText = []; // TODO: Positioning not supported, displaying multiple windows will not necessarily
+            // display text in the correct order, but sample files so far have not shown any issue.
+
+            for (var winId = 0; winId < 8; winId++) {
+                if (service.windows[winId].visible && !service.windows[winId].isEmpty()) {
+                    displayedText.push(service.windows[winId].getText());
+                }
+            }
+            service.endPts = pts;
+            service.text = displayedText.join('\n\n');
+            this.pushCaption(service);
+            service.startPts = pts;
+        };
+        /**
+         * Push a caption to output if the caption contains text.
+         *
+         * @param  {Service} service  The service object to be affected
+         */
+
+        Cea708Stream.prototype.pushCaption = function (service) {
+            if (service.text !== '') {
+                this.trigger('data', {
+                    startPts: service.startPts,
+                    endPts: service.endPts,
+                    text: service.text,
+                    stream: 'cc708_' + service.serviceNum
+                });
+                service.text = '';
+                service.startPts = service.endPts;
+            }
+        };
+        /**
+         * Parse and execute the DSW command.
+         *
+         * Set visible property of windows based on the parsed bitmask.
+         *
+         * @param  {Integer} i        Current index in the 708 packet
+         * @param  {Service} service  The service object to be affected
+         * @return {Integer}          New index after parsing
+         */
+
+        Cea708Stream.prototype.displayWindows = function (i, service) {
+            var packetData = this.current708Packet.data;
+            var b = packetData[++i];
+            var pts = this.getPts(i);
+            this.flushDisplayed(pts, service);
+            for (var winId = 0; winId < 8; winId++) {
+                if (b & 0x01 << winId) {
+                    service.windows[winId].visible = 1;
+                }
+            }
+            return i;
+        };
+        /**
+         * Parse and execute the HDW command.
+         *
+         * Set visible property of windows based on the parsed bitmask.
+         *
+         * @param  {Integer} i        Current index in the 708 packet
+         * @param  {Service} service  The service object to be affected
+         * @return {Integer}          New index after parsing
+         */
+
+        Cea708Stream.prototype.hideWindows = function (i, service) {
+            var packetData = this.current708Packet.data;
+            var b = packetData[++i];
+            var pts = this.getPts(i);
+            this.flushDisplayed(pts, service);
+            for (var winId = 0; winId < 8; winId++) {
+                if (b & 0x01 << winId) {
+                    service.windows[winId].visible = 0;
+                }
+            }
+            return i;
+        };
+        /**
+         * Parse and execute the TGW command.
+         *
+         * Set visible property of windows based on the parsed bitmask.
+         *
+         * @param  {Integer} i        Current index in the 708 packet
+         * @param  {Service} service  The service object to be affected
+         * @return {Integer}          New index after parsing
+         */
+
+        Cea708Stream.prototype.toggleWindows = function (i, service) {
+            var packetData = this.current708Packet.data;
+            var b = packetData[++i];
+            var pts = this.getPts(i);
+            this.flushDisplayed(pts, service);
+            for (var winId = 0; winId < 8; winId++) {
+                if (b & 0x01 << winId) {
+                    service.windows[winId].visible ^= 1;
+                }
+            }
+            return i;
+        };
+        /**
+         * Parse and execute the CLW command.
+         *
+         * Clear text of windows based on the parsed bitmask.
+         *
+         * @param  {Integer} i        Current index in the 708 packet
+         * @param  {Service} service  The service object to be affected
+         * @return {Integer}          New index after parsing
+         */
+
+        Cea708Stream.prototype.clearWindows = function (i, service) {
+            var packetData = this.current708Packet.data;
+            var b = packetData[++i];
+            var pts = this.getPts(i);
+            this.flushDisplayed(pts, service);
+            for (var winId = 0; winId < 8; winId++) {
+                if (b & 0x01 << winId) {
+                    service.windows[winId].clearText();
+                }
+            }
+            return i;
+        };
+        /**
+         * Parse and execute the DLW command.
+         *
+         * Re-initialize windows based on the parsed bitmask.
+         *
+         * @param  {Integer} i        Current index in the 708 packet
+         * @param  {Service} service  The service object to be affected
+         * @return {Integer}          New index after parsing
+         */
+
+        Cea708Stream.prototype.deleteWindows = function (i, service) {
+            var packetData = this.current708Packet.data;
+            var b = packetData[++i];
+            var pts = this.getPts(i);
+            this.flushDisplayed(pts, service);
+            for (var winId = 0; winId < 8; winId++) {
+                if (b & 0x01 << winId) {
+                    service.windows[winId].reset();
+                }
+            }
+            return i;
+        };
+        /**
+         * Parse and execute the SPA command.
+         *
+         * Set pen attributes of the current window.
+         *
+         * @param  {Integer} i        Current index in the 708 packet
+         * @param  {Service} service  The service object to be affected
+         * @return {Integer}          New index after parsing
+         */
+
+        Cea708Stream.prototype.setPenAttributes = function (i, service) {
+            var packetData = this.current708Packet.data;
+            var b = packetData[i];
+            var penAttr = service.currentWindow.penAttr;
+            b = packetData[++i];
+            penAttr.textTag = (b & 0xf0) >> 4; // tt
+
+            penAttr.offset = (b & 0x0c) >> 2; // o
+
+            penAttr.penSize = b & 0x03; // s
+
+            b = packetData[++i];
+            penAttr.italics = (b & 0x80) >> 7; // i
+
+            penAttr.underline = (b & 0x40) >> 6; // u
+
+            penAttr.edgeType = (b & 0x38) >> 3; // et
+
+            penAttr.fontStyle = b & 0x07; // fs
+
+            return i;
+        };
+        /**
+         * Parse and execute the SPC command.
+         *
+         * Set pen color of the current window.
+         *
+         * @param  {Integer} i        Current index in the 708 packet
+         * @param  {Service} service  The service object to be affected
+         * @return {Integer}          New index after parsing
+         */
+
+        Cea708Stream.prototype.setPenColor = function (i, service) {
+            var packetData = this.current708Packet.data;
+            var b = packetData[i];
+            var penColor = service.currentWindow.penColor;
+            b = packetData[++i];
+            penColor.fgOpacity = (b & 0xc0) >> 6; // fo
+
+            penColor.fgRed = (b & 0x30) >> 4; // fr
+
+            penColor.fgGreen = (b & 0x0c) >> 2; // fg
+
+            penColor.fgBlue = b & 0x03; // fb
+
+            b = packetData[++i];
+            penColor.bgOpacity = (b & 0xc0) >> 6; // bo
+
+            penColor.bgRed = (b & 0x30) >> 4; // br
+
+            penColor.bgGreen = (b & 0x0c) >> 2; // bg
+
+            penColor.bgBlue = b & 0x03; // bb
+
+            b = packetData[++i];
+            penColor.edgeRed = (b & 0x30) >> 4; // er
+
+            penColor.edgeGreen = (b & 0x0c) >> 2; // eg
+
+            penColor.edgeBlue = b & 0x03; // eb
+
+            return i;
+        };
+        /**
+         * Parse and execute the SPL command.
+         *
+         * Set pen location of the current window.
+         *
+         * @param  {Integer} i        Current index in the 708 packet
+         * @param  {Service} service  The service object to be affected
+         * @return {Integer}          New index after parsing
+         */
+
+        Cea708Stream.prototype.setPenLocation = function (i, service) {
+            var packetData = this.current708Packet.data;
+            var b = packetData[i];
+            var penLoc = service.currentWindow.penLoc; // Positioning isn't really supported at the moment, so this essentially just inserts a linebreak
+
+            service.currentWindow.pendingNewLine = true;
+            b = packetData[++i];
+            penLoc.row = b & 0x0f; // r
+
+            b = packetData[++i];
+            penLoc.column = b & 0x3f; // c
+
+            return i;
+        };
+        /**
+         * Execute the RST command.
+         *
+         * Reset service to a clean slate. Re-initialize.
+         *
+         * @param  {Integer} i        Current index in the 708 packet
+         * @param  {Service} service  The service object to be affected
+         * @return {Service}          Re-initialized service
+         */
+
+        Cea708Stream.prototype.reset = function (i, service) {
+            var pts = this.getPts(i);
+            this.flushDisplayed(pts, service);
+            return this.initService(service.serviceNum, i);
+        }; // This hash maps non-ASCII, special, and extended character codes to their
+        // proper Unicode equivalent. The first keys that are only a single byte
+        // are the non-standard ASCII characters, which simply map the CEA608 byte
+        // to the standard ASCII/Unicode. The two-byte keys that follow are the CEA608
+        // character codes, but have their MSB bitmasked with 0x03 so that a lookup
+        // can be performed regardless of the field and data channel on which the
+        // character code was received.
+
+        var CHARACTER_TRANSLATION = {
+            0x2a: 0xe1,
+            // á
+            0x5c: 0xe9,
+            // é
+            0x5e: 0xed,
+            // í
+            0x5f: 0xf3,
+            // ó
+            0x60: 0xfa,
+            // ú
+            0x7b: 0xe7,
+            // ç
+            0x7c: 0xf7,
+            // ÷
+            0x7d: 0xd1,
+            // Ñ
+            0x7e: 0xf1,
+            // ñ
+            0x7f: 0x2588,
+            // █
+            0x0130: 0xae,
+            // ®
+            0x0131: 0xb0,
+            // °
+            0x0132: 0xbd,
+            // ½
+            0x0133: 0xbf,
+            // ¿
+            0x0134: 0x2122,
+            // ™
+            0x0135: 0xa2,
+            // ¢
+            0x0136: 0xa3,
+            // £
+            0x0137: 0x266a,
+            // ♪
+            0x0138: 0xe0,
+            // à
+            0x0139: 0xa0,
+            //
+            0x013a: 0xe8,
+            // è
+            0x013b: 0xe2,
+            // â
+            0x013c: 0xea,
+            // ê
+            0x013d: 0xee,
+            // î
+            0x013e: 0xf4,
+            // ô
+            0x013f: 0xfb,
+            // û
+            0x0220: 0xc1,
+            // Á
+            0x0221: 0xc9,
+            // É
+            0x0222: 0xd3,
+            // Ó
+            0x0223: 0xda,
+            // Ú
+            0x0224: 0xdc,
+            // Ü
+            0x0225: 0xfc,
+            // ü
+            0x0226: 0x2018,
+            // ‘
+            0x0227: 0xa1,
+            // ¡
+            0x0228: 0x2a,
+            // *
+            0x0229: 0x27,
+            // '
+            0x022a: 0x2014,
+            // —
+            0x022b: 0xa9,
+            // ©
+            0x022c: 0x2120,
+            // ℠
+            0x022d: 0x2022,
+            // •
+            0x022e: 0x201c,
+            // “
+            0x022f: 0x201d,
+            // ”
+            0x0230: 0xc0,
+            // À
+            0x0231: 0xc2,
+            // Â
+            0x0232: 0xc7,
+            // Ç
+            0x0233: 0xc8,
+            // È
+            0x0234: 0xca,
+            // Ê
+            0x0235: 0xcb,
+            // Ë
+            0x0236: 0xeb,
+            // ë
+            0x0237: 0xce,
+            // Î
+            0x0238: 0xcf,
+            // Ï
+            0x0239: 0xef,
+            // ï
+            0x023a: 0xd4,
+            // Ô
+            0x023b: 0xd9,
+            // Ù
+            0x023c: 0xf9,
+            // ù
+            0x023d: 0xdb,
+            // Û
+            0x023e: 0xab,
+            // «
+            0x023f: 0xbb,
+            // »
+            0x0320: 0xc3,
+            // Ã
+            0x0321: 0xe3,
+            // ã
+            0x0322: 0xcd,
+            // Í
+            0x0323: 0xcc,
+            // Ì
+            0x0324: 0xec,
+            // ì
+            0x0325: 0xd2,
+            // Ò
+            0x0326: 0xf2,
+            // ò
+            0x0327: 0xd5,
+            // Õ
+            0x0328: 0xf5,
+            // õ
+            0x0329: 0x7b,
+            // {
+            0x032a: 0x7d,
+            // }
+            0x032b: 0x5c,
+            // \
+            0x032c: 0x5e,
+            // ^
+            0x032d: 0x5f,
+            // _
+            0x032e: 0x7c,
+            // |
+            0x032f: 0x7e,
+            // ~
+            0x0330: 0xc4,
+            // Ä
+            0x0331: 0xe4,
+            // ä
+            0x0332: 0xd6,
+            // Ö
+            0x0333: 0xf6,
+            // ö
+            0x0334: 0xdf,
+            // ß
+            0x0335: 0xa5,
+            // ¥
+            0x0336: 0xa4,
+            // ¤
+            0x0337: 0x2502,
+            // │
+            0x0338: 0xc5,
+            // Å
+            0x0339: 0xe5,
+            // å
+            0x033a: 0xd8,
+            // Ø
+            0x033b: 0xf8,
+            // ø
+            0x033c: 0x250c,
+            // ┌
+            0x033d: 0x2510,
+            // ┐
+            0x033e: 0x2514,
+            // └
+            0x033f: 0x2518 // ┘
+        };
+
+        var getCharFromCode = function (code) {
+            if (code === null) {
+                return '';
+            }
+            code = CHARACTER_TRANSLATION[code] || code;
+            return String.fromCharCode(code);
+        }; // the index of the last row in a CEA-608 display buffer
+
+        var BOTTOM_ROW = 14; // This array is used for mapping PACs -> row #, since there's no way of
+        // getting it through bit logic.
+
+        var ROWS = [0x1100, 0x1120, 0x1200, 0x1220, 0x1500, 0x1520, 0x1600, 0x1620, 0x1700, 0x1720, 0x1000, 0x1300, 0x1320, 0x1400, 0x1420]; // CEA-608 captions are rendered onto a 34x15 matrix of character
+        // cells. The "bottom" row is the last element in the outer array.
+
+        var createDisplayBuffer = function () {
+            var result = [],
+                i = BOTTOM_ROW + 1;
+            while (i--) {
+                result.push('');
+            }
+            return result;
+        };
+        var Cea608Stream = function (field, dataChannel) {
+            Cea608Stream.prototype.init.call(this);
+            this.field_ = field || 0;
+            this.dataChannel_ = dataChannel || 0;
+            this.name_ = 'CC' + ((this.field_ << 1 | this.dataChannel_) + 1);
+            this.setConstants();
+            this.reset();
+            this.push = function (packet) {
+                var data, swap, char0, char1, text; // remove the parity bits
+
+                data = packet.ccData & 0x7f7f; // ignore duplicate control codes; the spec demands they're sent twice
+
+                if (data === this.lastControlCode_) {
+                    this.lastControlCode_ = null;
+                    return;
+                } // Store control codes
+
+                if ((data & 0xf000) === 0x1000) {
+                    this.lastControlCode_ = data;
+                } else if (data !== this.PADDING_) {
+                    this.lastControlCode_ = null;
+                }
+                char0 = data >>> 8;
+                char1 = data & 0xff;
+                if (data === this.PADDING_) {
+                    return;
+                } else if (data === this.RESUME_CAPTION_LOADING_) {
+                    this.mode_ = 'popOn';
+                } else if (data === this.END_OF_CAPTION_) {
+                    // If an EOC is received while in paint-on mode, the displayed caption
+                    // text should be swapped to non-displayed memory as if it was a pop-on
+                    // caption. Because of that, we should explicitly switch back to pop-on
+                    // mode
+                    this.mode_ = 'popOn';
+                    this.clearFormatting(packet.pts); // if a caption was being displayed, it's gone now
+
+                    this.flushDisplayed(packet.pts); // flip memory
+
+                    swap = this.displayed_;
+                    this.displayed_ = this.nonDisplayed_;
+                    this.nonDisplayed_ = swap; // start measuring the time to display the caption
+
+                    this.startPts_ = packet.pts;
+                } else if (data === this.ROLL_UP_2_ROWS_) {
+                    this.rollUpRows_ = 2;
+                    this.setRollUp(packet.pts);
+                } else if (data === this.ROLL_UP_3_ROWS_) {
+                    this.rollUpRows_ = 3;
+                    this.setRollUp(packet.pts);
+                } else if (data === this.ROLL_UP_4_ROWS_) {
+                    this.rollUpRows_ = 4;
+                    this.setRollUp(packet.pts);
+                } else if (data === this.CARRIAGE_RETURN_) {
+                    this.clearFormatting(packet.pts);
+                    this.flushDisplayed(packet.pts);
+                    this.shiftRowsUp_();
+                    this.startPts_ = packet.pts;
+                } else if (data === this.BACKSPACE_) {
+                    if (this.mode_ === 'popOn') {
+                        this.nonDisplayed_[this.row_] = this.nonDisplayed_[this.row_].slice(0, -1);
+                    } else {
+                        this.displayed_[this.row_] = this.displayed_[this.row_].slice(0, -1);
+                    }
+                } else if (data === this.ERASE_DISPLAYED_MEMORY_) {
+                    this.flushDisplayed(packet.pts);
+                    this.displayed_ = createDisplayBuffer();
+                } else if (data === this.ERASE_NON_DISPLAYED_MEMORY_) {
+                    this.nonDisplayed_ = createDisplayBuffer();
+                } else if (data === this.RESUME_DIRECT_CAPTIONING_) {
+                    if (this.mode_ !== 'paintOn') {
+                        // NOTE: This should be removed when proper caption positioning is
+                        // implemented
+                        this.flushDisplayed(packet.pts);
+                        this.displayed_ = createDisplayBuffer();
+                    }
+                    this.mode_ = 'paintOn';
+                    this.startPts_ = packet.pts; // Append special characters to caption text
+                } else if (this.isSpecialCharacter(char0, char1)) {
+                    // Bitmask char0 so that we can apply character transformations
+                    // regardless of field and data channel.
+                    // Then byte-shift to the left and OR with char1 so we can pass the
+                    // entire character code to `getCharFromCode`.
+                    char0 = (char0 & 0x03) << 8;
+                    text = getCharFromCode(char0 | char1);
+                    this[this.mode_](packet.pts, text);
+                    this.column_++; // Append extended characters to caption text
+                } else if (this.isExtCharacter(char0, char1)) {
+                    // Extended characters always follow their "non-extended" equivalents.
+                    // IE if a "è" is desired, you'll always receive "eè"; non-compliant
+                    // decoders are supposed to drop the "è", while compliant decoders
+                    // backspace the "e" and insert "è".
+                    // Delete the previous character
+                    if (this.mode_ === 'popOn') {
+                        this.nonDisplayed_[this.row_] = this.nonDisplayed_[this.row_].slice(0, -1);
+                    } else {
+                        this.displayed_[this.row_] = this.displayed_[this.row_].slice(0, -1);
+                    } // Bitmask char0 so that we can apply character transformations
+                    // regardless of field and data channel.
+                    // Then byte-shift to the left and OR with char1 so we can pass the
+                    // entire character code to `getCharFromCode`.
+
+                    char0 = (char0 & 0x03) << 8;
+                    text = getCharFromCode(char0 | char1);
+                    this[this.mode_](packet.pts, text);
+                    this.column_++; // Process mid-row codes
+                } else if (this.isMidRowCode(char0, char1)) {
+                    // Attributes are not additive, so clear all formatting
+                    this.clearFormatting(packet.pts); // According to the standard, mid-row codes
+                    // should be replaced with spaces, so add one now
+
+                    this[this.mode_](packet.pts, ' ');
+                    this.column_++;
+                    if ((char1 & 0xe) === 0xe) {
+                        this.addFormatting(packet.pts, ['i']);
+                    }
+                    if ((char1 & 0x1) === 0x1) {
+                        this.addFormatting(packet.pts, ['u']);
+                    } // Detect offset control codes and adjust cursor
+                } else if (this.isOffsetControlCode(char0, char1)) {
+                    // Cursor position is set by indent PAC (see below) in 4-column
+                    // increments, with an additional offset code of 1-3 to reach any
+                    // of the 32 columns specified by CEA-608. So all we need to do
+                    // here is increment the column cursor by the given offset.
+                    this.column_ += char1 & 0x03; // Detect PACs (Preamble Address Codes)
+                } else if (this.isPAC(char0, char1)) {
+                    // There's no logic for PAC -> row mapping, so we have to just
+                    // find the row code in an array and use its index :(
+                    var row = ROWS.indexOf(data & 0x1f20); // Configure the caption window if we're in roll-up mode
+
+                    if (this.mode_ === 'rollUp') {
+                        // This implies that the base row is incorrectly set.
+                        // As per the recommendation in CEA-608(Base Row Implementation), defer to the number
+                        // of roll-up rows set.
+                        if (row - this.rollUpRows_ + 1 < 0) {
+                            row = this.rollUpRows_ - 1;
+                        }
+                        this.setRollUp(packet.pts, row);
+                    }
+                    if (row !== this.row_) {
+                        // formatting is only persistent for current row
+                        this.clearFormatting(packet.pts);
+                        this.row_ = row;
+                    } // All PACs can apply underline, so detect and apply
+                    // (All odd-numbered second bytes set underline)
+
+                    if (char1 & 0x1 && this.formatting_.indexOf('u') === -1) {
+                        this.addFormatting(packet.pts, ['u']);
+                    }
+                    if ((data & 0x10) === 0x10) {
+                        // We've got an indent level code. Each successive even number
+                        // increments the column cursor by 4, so we can get the desired
+                        // column position by bit-shifting to the right (to get n/2)
+                        // and multiplying by 4.
+                        this.column_ = ((data & 0xe) >> 1) * 4;
+                    }
+                    if (this.isColorPAC(char1)) {
+                        // it's a color code, though we only support white, which
+                        // can be either normal or italicized. white italics can be
+                        // either 0x4e or 0x6e depending on the row, so we just
+                        // bitwise-and with 0xe to see if italics should be turned on
+                        if ((char1 & 0xe) === 0xe) {
+                            this.addFormatting(packet.pts, ['i']);
+                        }
+                    } // We have a normal character in char0, and possibly one in char1
+                } else if (this.isNormalChar(char0)) {
+                    if (char1 === 0x00) {
+                        char1 = null;
+                    }
+                    text = getCharFromCode(char0);
+                    text += getCharFromCode(char1);
+                    this[this.mode_](packet.pts, text);
+                    this.column_ += text.length;
+                } // finish data processing
+            };
+        };
+
+        Cea608Stream.prototype = new Stream$7(); // Trigger a cue point that captures the current state of the
+        // display buffer
+
+        Cea608Stream.prototype.flushDisplayed = function (pts) {
+            var content = this.displayed_ // remove spaces from the start and end of the string
+                .map(function (row, index) {
+                    try {
+                        return row.trim();
+                    } catch (e) {
+                        // Ordinarily, this shouldn't happen. However, caption
+                        // parsing errors should not throw exceptions and
+                        // break playback.
+                        this.trigger('log', {
+                            level: 'warn',
+                            message: 'Skipping a malformed 608 caption at index ' + index + '.'
+                        });
+                        return '';
+                    }
+                }, this) // combine all text rows to display in one cue
+                .join('\n') // and remove blank rows from the start and end, but not the middle
+                .replace(/^\n+|\n+$/g, '');
+            if (content.length) {
+                this.trigger('data', {
+                    startPts: this.startPts_,
+                    endPts: pts,
+                    text: content,
+                    stream: this.name_
+                });
+            }
+        };
+        /**
+         * Zero out the data, used for startup and on seek
+         */
+
+        Cea608Stream.prototype.reset = function () {
+            this.mode_ = 'popOn'; // When in roll-up mode, the index of the last row that will
+            // actually display captions. If a caption is shifted to a row
+            // with a lower index than this, it is cleared from the display
+            // buffer
+
+            this.topRow_ = 0;
+            this.startPts_ = 0;
+            this.displayed_ = createDisplayBuffer();
+            this.nonDisplayed_ = createDisplayBuffer();
+            this.lastControlCode_ = null; // Track row and column for proper line-breaking and spacing
+
+            this.column_ = 0;
+            this.row_ = BOTTOM_ROW;
+            this.rollUpRows_ = 2; // This variable holds currently-applied formatting
+
+            this.formatting_ = [];
+        };
+        /**
+         * Sets up control code and related constants for this instance
+         */
+
+        Cea608Stream.prototype.setConstants = function () {
+            // The following attributes have these uses:
+            // ext_ :    char0 for mid-row codes, and the base for extended
+            //           chars (ext_+0, ext_+1, and ext_+2 are char0s for
+            //           extended codes)
+            // control_: char0 for control codes, except byte-shifted to the
+            //           left so that we can do this.control_ | CONTROL_CODE
+            // offset_:  char0 for tab offset codes
+            //
+            // It's also worth noting that control codes, and _only_ control codes,
+            // differ between field 1 and field2. Field 2 control codes are always
+            // their field 1 value plus 1. That's why there's the "| field" on the
+            // control value.
+            if (this.dataChannel_ === 0) {
+                this.BASE_ = 0x10;
+                this.EXT_ = 0x11;
+                this.CONTROL_ = (0x14 | this.field_) << 8;
+                this.OFFSET_ = 0x17;
+            } else if (this.dataChannel_ === 1) {
+                this.BASE_ = 0x18;
+                this.EXT_ = 0x19;
+                this.CONTROL_ = (0x1c | this.field_) << 8;
+                this.OFFSET_ = 0x1f;
+            } // Constants for the LSByte command codes recognized by Cea608Stream. This
+            // list is not exhaustive. For a more comprehensive listing and semantics see
+            // http://www.gpo.gov/fdsys/pkg/CFR-2010-title47-vol1/pdf/CFR-2010-title47-vol1-sec15-119.pdf
+            // Padding
+
+            this.PADDING_ = 0x0000; // Pop-on Mode
+
+            this.RESUME_CAPTION_LOADING_ = this.CONTROL_ | 0x20;
+            this.END_OF_CAPTION_ = this.CONTROL_ | 0x2f; // Roll-up Mode
+
+            this.ROLL_UP_2_ROWS_ = this.CONTROL_ | 0x25;
+            this.ROLL_UP_3_ROWS_ = this.CONTROL_ | 0x26;
+            this.ROLL_UP_4_ROWS_ = this.CONTROL_ | 0x27;
+            this.CARRIAGE_RETURN_ = this.CONTROL_ | 0x2d; // paint-on mode
+
+            this.RESUME_DIRECT_CAPTIONING_ = this.CONTROL_ | 0x29; // Erasure
+
+            this.BACKSPACE_ = this.CONTROL_ | 0x21;
+            this.ERASE_DISPLAYED_MEMORY_ = this.CONTROL_ | 0x2c;
+            this.ERASE_NON_DISPLAYED_MEMORY_ = this.CONTROL_ | 0x2e;
+        };
+        /**
+         * Detects if the 2-byte packet data is a special character
+         *
+         * Special characters have a second byte in the range 0x30 to 0x3f,
+         * with the first byte being 0x11 (for data channel 1) or 0x19 (for
+         * data channel 2).
+         *
+         * @param  {Integer} char0 The first byte
+         * @param  {Integer} char1 The second byte
+         * @return {Boolean}       Whether the 2 bytes are an special character
+         */
+
+        Cea608Stream.prototype.isSpecialCharacter = function (char0, char1) {
+            return char0 === this.EXT_ && char1 >= 0x30 && char1 <= 0x3f;
+        };
+        /**
+         * Detects if the 2-byte packet data is an extended character
+         *
+         * Extended characters have a second byte in the range 0x20 to 0x3f,
+         * with the first byte being 0x12 or 0x13 (for data channel 1) or
+         * 0x1a or 0x1b (for data channel 2).
+         *
+         * @param  {Integer} char0 The first byte
+         * @param  {Integer} char1 The second byte
+         * @return {Boolean}       Whether the 2 bytes are an extended character
+         */
+
+        Cea608Stream.prototype.isExtCharacter = function (char0, char1) {
+            return (char0 === this.EXT_ + 1 || char0 === this.EXT_ + 2) && char1 >= 0x20 && char1 <= 0x3f;
+        };
+        /**
+         * Detects if the 2-byte packet is a mid-row code
+         *
+         * Mid-row codes have a second byte in the range 0x20 to 0x2f, with
+         * the first byte being 0x11 (for data channel 1) or 0x19 (for data
+         * channel 2).
+         *
+         * @param  {Integer} char0 The first byte
+         * @param  {Integer} char1 The second byte
+         * @return {Boolean}       Whether the 2 bytes are a mid-row code
+         */
+
+        Cea608Stream.prototype.isMidRowCode = function (char0, char1) {
+            return char0 === this.EXT_ && char1 >= 0x20 && char1 <= 0x2f;
+        };
+        /**
+         * Detects if the 2-byte packet is an offset control code
+         *
+         * Offset control codes have a second byte in the range 0x21 to 0x23,
+         * with the first byte being 0x17 (for data channel 1) or 0x1f (for
+         * data channel 2).
+         *
+         * @param  {Integer} char0 The first byte
+         * @param  {Integer} char1 The second byte
+         * @return {Boolean}       Whether the 2 bytes are an offset control code
+         */
+
+        Cea608Stream.prototype.isOffsetControlCode = function (char0, char1) {
+            return char0 === this.OFFSET_ && char1 >= 0x21 && char1 <= 0x23;
+        };
+        /**
+         * Detects if the 2-byte packet is a Preamble Address Code
+         *
+         * PACs have a first byte in the range 0x10 to 0x17 (for data channel 1)
+         * or 0x18 to 0x1f (for data channel 2), with the second byte in the
+         * range 0x40 to 0x7f.
+         *
+         * @param  {Integer} char0 The first byte
+         * @param  {Integer} char1 The second byte
+         * @return {Boolean}       Whether the 2 bytes are a PAC
+         */
+
+        Cea608Stream.prototype.isPAC = function (char0, char1) {
+            return char0 >= this.BASE_ && char0 < this.BASE_ + 8 && char1 >= 0x40 && char1 <= 0x7f;
+        };
+        /**
+         * Detects if a packet's second byte is in the range of a PAC color code
+         *
+         * PAC color codes have the second byte be in the range 0x40 to 0x4f, or
+         * 0x60 to 0x6f.
+         *
+         * @param  {Integer} char1 The second byte
+         * @return {Boolean}       Whether the byte is a color PAC
+         */
+
+        Cea608Stream.prototype.isColorPAC = function (char1) {
+            return char1 >= 0x40 && char1 <= 0x4f || char1 >= 0x60 && char1 <= 0x7f;
+        };
+        /**
+         * Detects if a single byte is in the range of a normal character
+         *
+         * Normal text bytes are in the range 0x20 to 0x7f.
+         *
+         * @param  {Integer} char  The byte
+         * @return {Boolean}       Whether the byte is a normal character
+         */
+
+        Cea608Stream.prototype.isNormalChar = function (char) {
+            return char >= 0x20 && char <= 0x7f;
+        };
+        /**
+         * Configures roll-up
+         *
+         * @param  {Integer} pts         Current PTS
+         * @param  {Integer} newBaseRow  Used by PACs to slide the current window to
+         *                               a new position
+         */
+
+        Cea608Stream.prototype.setRollUp = function (pts, newBaseRow) {
+            // Reset the base row to the bottom row when switching modes
+            if (this.mode_ !== 'rollUp') {
+                this.row_ = BOTTOM_ROW;
+                this.mode_ = 'rollUp'; // Spec says to wipe memories when switching to roll-up
+
+                this.flushDisplayed(pts);
+                this.nonDisplayed_ = createDisplayBuffer();
+                this.displayed_ = createDisplayBuffer();
+            }
+            if (newBaseRow !== undefined && newBaseRow !== this.row_) {
+                // move currently displayed captions (up or down) to the new base row
+                for (var i = 0; i < this.rollUpRows_; i++) {
+                    this.displayed_[newBaseRow - i] = this.displayed_[this.row_ - i];
+                    this.displayed_[this.row_ - i] = '';
+                }
+            }
+            if (newBaseRow === undefined) {
+                newBaseRow = this.row_;
+            }
+            this.topRow_ = newBaseRow - this.rollUpRows_ + 1;
+        }; // Adds the opening HTML tag for the passed character to the caption text,
+        // and keeps track of it for later closing
+
+        Cea608Stream.prototype.addFormatting = function (pts, format) {
+            this.formatting_ = this.formatting_.concat(format);
+            var text = format.reduce(function (text, format) {
+                return text + '<' + format + '>';
+            }, '');
+            this[this.mode_](pts, text);
+        }; // Adds HTML closing tags for current formatting to caption text and
+        // clears remembered formatting
+
+        Cea608Stream.prototype.clearFormatting = function (pts) {
+            if (!this.formatting_.length) {
+                return;
+            }
+            var text = this.formatting_.reverse().reduce(function (text, format) {
+                return text + '</' + format + '>';
+            }, '');
+            this.formatting_ = [];
+            this[this.mode_](pts, text);
+        }; // Mode Implementations
+
+        Cea608Stream.prototype.popOn = function (pts, text) {
+            var baseRow = this.nonDisplayed_[this.row_]; // buffer characters
+
+            baseRow += text;
+            this.nonDisplayed_[this.row_] = baseRow;
+        };
+        Cea608Stream.prototype.rollUp = function (pts, text) {
+            var baseRow = this.displayed_[this.row_];
+            baseRow += text;
+            this.displayed_[this.row_] = baseRow;
+        };
+        Cea608Stream.prototype.shiftRowsUp_ = function () {
+            var i; // clear out inactive rows
+
+            for (i = 0; i < this.topRow_; i++) {
+                this.displayed_[i] = '';
+            }
+            for (i = this.row_ + 1; i < BOTTOM_ROW + 1; i++) {
+                this.displayed_[i] = '';
+            } // shift displayed rows up
+
+            for (i = this.topRow_; i < this.row_; i++) {
+                this.displayed_[i] = this.displayed_[i + 1];
+            } // clear out the bottom row
+
+            this.displayed_[this.row_] = '';
+        };
+        Cea608Stream.prototype.paintOn = function (pts, text) {
+            var baseRow = this.displayed_[this.row_];
+            baseRow += text;
+            this.displayed_[this.row_] = baseRow;
+        }; // exports
+
+        var captionStream = {
+            CaptionStream: CaptionStream$2,
+            Cea608Stream: Cea608Stream,
+            Cea708Stream: Cea708Stream
+        };
+        /**
+         * mux.js
+         *
+         * Copyright (c) Brightcove
+         * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE
+         */
+
+        var streamTypes = {
+            H264_STREAM_TYPE: 0x1B,
+            ADTS_STREAM_TYPE: 0x0F,
+            METADATA_STREAM_TYPE: 0x15
+        };
+        /**
+         * mux.js
+         *
+         * Copyright (c) Brightcove
+         * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE
+         *
+         * Accepts program elementary stream (PES) data events and corrects
+         * decode and presentation time stamps to account for a rollover
+         * of the 33 bit value.
+         */
+
+        var Stream$6 = stream;
+        var MAX_TS = 8589934592;
+        var RO_THRESH = 4294967296;
+        var TYPE_SHARED = 'shared';
+        var handleRollover$1 = function (value, reference) {
+            var direction = 1;
+            if (value > reference) {
+                // If the current timestamp value is greater than our reference timestamp and we detect a
+                // timestamp rollover, this means the roll over is happening in the opposite direction.
+                // Example scenario: Enter a long stream/video just after a rollover occurred. The reference
+                // point will be set to a small number, e.g. 1. The user then seeks backwards over the
+                // rollover point. In loading this segment, the timestamp values will be very large,
+                // e.g. 2^33 - 1. Since this comes before the data we loaded previously, we want to adjust
+                // the time stamp to be `value - 2^33`.
+                direction = -1;
+            } // Note: A seek forwards or back that is greater than the RO_THRESH (2^32, ~13 hours) will
+            // cause an incorrect adjustment.
+
+            while (Math.abs(reference - value) > RO_THRESH) {
+                value += direction * MAX_TS;
+            }
+            return value;
+        };
+        var TimestampRolloverStream$1 = function (type) {
+            var lastDTS, referenceDTS;
+            TimestampRolloverStream$1.prototype.init.call(this); // The "shared" type is used in cases where a stream will contain muxed
+            // video and audio. We could use `undefined` here, but having a string
+            // makes debugging a little clearer.
+
+            this.type_ = type || TYPE_SHARED;
+            this.push = function (data) {
+                // Any "shared" rollover streams will accept _all_ data. Otherwise,
+                // streams will only accept data that matches their type.
+                if (this.type_ !== TYPE_SHARED && data.type !== this.type_) {
+                    return;
+                }
+                if (referenceDTS === undefined) {
+                    referenceDTS = data.dts;
+                }
+                data.dts = handleRollover$1(data.dts, referenceDTS);
+                data.pts = handleRollover$1(data.pts, referenceDTS);
+                lastDTS = data.dts;
+                this.trigger('data', data);
+            };
+            this.flush = function () {
+                referenceDTS = lastDTS;
+                this.trigger('done');
+            };
+            this.endTimeline = function () {
+                this.flush();
+                this.trigger('endedtimeline');
+            };
+            this.discontinuity = function () {
+                referenceDTS = void 0;
+                lastDTS = void 0;
+            };
+            this.reset = function () {
+                this.discontinuity();
+                this.trigger('reset');
+            };
+        };
+        TimestampRolloverStream$1.prototype = new Stream$6();
+        var timestampRolloverStream = {
+            TimestampRolloverStream: TimestampRolloverStream$1,
+            handleRollover: handleRollover$1
+        }; // Once IE11 support is dropped, this function should be removed.
+
+        var typedArrayIndexOf$1 = (typedArray, element, fromIndex) => {
+            if (!typedArray) {
+                return -1;
+            }
+            var currentIndex = fromIndex;
+            for (; currentIndex < typedArray.length; currentIndex++) {
+                if (typedArray[currentIndex] === element) {
+                    return currentIndex;
+                }
+            }
+            return -1;
+        };
+        var typedArray = {
+            typedArrayIndexOf: typedArrayIndexOf$1
+        };
+        /**
+         * mux.js
+         *
+         * Copyright (c) Brightcove
+         * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE
+         *
+         * Tools for parsing ID3 frame data
+         * @see http://id3.org/id3v2.3.0
+         */
+
+        var typedArrayIndexOf = typedArray.typedArrayIndexOf,
+            // Frames that allow different types of text encoding contain a text
+            // encoding description byte [ID3v2.4.0 section 4.]
+            textEncodingDescriptionByte = {
+                Iso88591: 0x00,
+                // ISO-8859-1, terminated with \0.
+                Utf16: 0x01,
+                // UTF-16 encoded Unicode BOM, terminated with \0\0
+                Utf16be: 0x02,
+                // UTF-16BE encoded Unicode, without BOM, terminated with \0\0
+                Utf8: 0x03 // UTF-8 encoded Unicode, terminated with \0
+            },
+            // return a percent-encoded representation of the specified byte range
+            // @see http://en.wikipedia.org/wiki/Percent-encoding
+            percentEncode$1 = function (bytes, start, end) {
+                var i,
+                    result = '';
+                for (i = start; i < end; i++) {
+                    result += '%' + ('00' + bytes[i].toString(16)).slice(-2);
+                }
+                return result;
+            },
+            // return the string representation of the specified byte range,
+            // interpreted as UTf-8.
+            parseUtf8 = function (bytes, start, end) {
+                return decodeURIComponent(percentEncode$1(bytes, start, end));
+            },
+            // return the string representation of the specified byte range,
+            // interpreted as ISO-8859-1.
+            parseIso88591$1 = function (bytes, start, end) {
+                return unescape(percentEncode$1(bytes, start, end)); // jshint ignore:line
+            },
+            parseSyncSafeInteger$1 = function (data) {
+                return data[0] << 21 | data[1] << 14 | data[2] << 7 | data[3];
+            },
+            frameParsers = {
+                'APIC': function (frame) {
+                    var i = 1,
+                        mimeTypeEndIndex,
+                        descriptionEndIndex,
+                        LINK_MIME_TYPE = '-->';
+                    if (frame.data[0] !== textEncodingDescriptionByte.Utf8) {
+                        // ignore frames with unrecognized character encodings
+                        return;
+                    } // parsing fields [ID3v2.4.0 section 4.14.]
+
+                    mimeTypeEndIndex = typedArrayIndexOf(frame.data, 0, i);
+                    if (mimeTypeEndIndex < 0) {
+                        // malformed frame
+                        return;
+                    } // parsing Mime type field (terminated with \0)
+
+                    frame.mimeType = parseIso88591$1(frame.data, i, mimeTypeEndIndex);
+                    i = mimeTypeEndIndex + 1; // parsing 1-byte Picture Type field
+
+                    frame.pictureType = frame.data[i];
+                    i++;
+                    descriptionEndIndex = typedArrayIndexOf(frame.data, 0, i);
+                    if (descriptionEndIndex < 0) {
+                        // malformed frame
+                        return;
+                    } // parsing Description field (terminated with \0)
+
+                    frame.description = parseUtf8(frame.data, i, descriptionEndIndex);
+                    i = descriptionEndIndex + 1;
+                    if (frame.mimeType === LINK_MIME_TYPE) {
+                        // parsing Picture Data field as URL (always represented as ISO-8859-1 [ID3v2.4.0 section 4.])
+                        frame.url = parseIso88591$1(frame.data, i, frame.data.length);
+                    } else {
+                        // parsing Picture Data field as binary data
+                        frame.pictureData = frame.data.subarray(i, frame.data.length);
+                    }
+                },
+                'T*': function (frame) {
+                    if (frame.data[0] !== textEncodingDescriptionByte.Utf8) {
+                        // ignore frames with unrecognized character encodings
+                        return;
+                    } // parse text field, do not include null terminator in the frame value
+                    // frames that allow different types of encoding contain terminated text [ID3v2.4.0 section 4.]
+
+                    frame.value = parseUtf8(frame.data, 1, frame.data.length).replace(/\0*$/, ''); // text information frames supports multiple strings, stored as a terminator separated list [ID3v2.4.0 section 4.2.]
+
+                    frame.values = frame.value.split('\0');
+                },
+                'TXXX': function (frame) {
+                    var descriptionEndIndex;
+                    if (frame.data[0] !== textEncodingDescriptionByte.Utf8) {
+                        // ignore frames with unrecognized character encodings
+                        return;
+                    }
+                    descriptionEndIndex = typedArrayIndexOf(frame.data, 0, 1);
+                    if (descriptionEndIndex === -1) {
+                        return;
+                    } // parse the text fields
+
+                    frame.description = parseUtf8(frame.data, 1, descriptionEndIndex); // do not include the null terminator in the tag value
+                    // frames that allow different types of encoding contain terminated text
+                    // [ID3v2.4.0 section 4.]
+
+                    frame.value = parseUtf8(frame.data, descriptionEndIndex + 1, frame.data.length).replace(/\0*$/, '');
+                    frame.data = frame.value;
+                },
+                'W*': function (frame) {
+                    // parse URL field; URL fields are always represented as ISO-8859-1 [ID3v2.4.0 section 4.]
+                    // if the value is followed by a string termination all the following information should be ignored [ID3v2.4.0 section 4.3]
+                    frame.url = parseIso88591$1(frame.data, 0, frame.data.length).replace(/\0.*$/, '');
+                },
+                'WXXX': function (frame) {
+                    var descriptionEndIndex;
+                    if (frame.data[0] !== textEncodingDescriptionByte.Utf8) {
+                        // ignore frames with unrecognized character encodings
+                        return;
+                    }
+                    descriptionEndIndex = typedArrayIndexOf(frame.data, 0, 1);
+                    if (descriptionEndIndex === -1) {
+                        return;
+                    } // parse the description and URL fields
+
+                    frame.description = parseUtf8(frame.data, 1, descriptionEndIndex); // URL fields are always represented as ISO-8859-1 [ID3v2.4.0 section 4.]
+                    // if the value is followed by a string termination all the following information
+                    // should be ignored [ID3v2.4.0 section 4.3]
+
+                    frame.url = parseIso88591$1(frame.data, descriptionEndIndex + 1, frame.data.length).replace(/\0.*$/, '');
+                },
+                'PRIV': function (frame) {
+                    var i;
+                    for (i = 0; i < frame.data.length; i++) {
+                        if (frame.data[i] === 0) {
+                            // parse the description and URL fields
+                            frame.owner = parseIso88591$1(frame.data, 0, i);
+                            break;
+                        }
+                    }
+                    frame.privateData = frame.data.subarray(i + 1);
+                    frame.data = frame.privateData;
+                }
+            };
+        var parseId3Frames$1 = function (data) {
+            var frameSize,
+                frameHeader,
+                frameStart = 10,
+                tagSize = 0,
+                frames = []; // If we don't have enough data for a header, 10 bytes,
+            // or 'ID3' in the first 3 bytes this is not a valid ID3 tag.
+
+            if (data.length < 10 || data[0] !== 'I'.charCodeAt(0) || data[1] !== 'D'.charCodeAt(0) || data[2] !== '3'.charCodeAt(0)) {
+                return;
+            } // the frame size is transmitted as a 28-bit integer in the
+            // last four bytes of the ID3 header.
+            // The most significant bit of each byte is dropped and the
+            // results concatenated to recover the actual value.
+
+            tagSize = parseSyncSafeInteger$1(data.subarray(6, 10)); // ID3 reports the tag size excluding the header but it's more
+            // convenient for our comparisons to include it
+
+            tagSize += 10; // check bit 6 of byte 5 for the extended header flag.
+
+            var hasExtendedHeader = data[5] & 0x40;
+            if (hasExtendedHeader) {
+                // advance the frame start past the extended header
+                frameStart += 4; // header size field
+
+                frameStart += parseSyncSafeInteger$1(data.subarray(10, 14));
+                tagSize -= parseSyncSafeInteger$1(data.subarray(16, 20)); // clip any padding off the end
+            } // parse one or more ID3 frames
+            // http://id3.org/id3v2.3.0#ID3v2_frame_overview
+
+            do {
+                // determine the number of bytes in this frame
+                frameSize = parseSyncSafeInteger$1(data.subarray(frameStart + 4, frameStart + 8));
+                if (frameSize < 1) {
+                    break;
+                }
+                frameHeader = String.fromCharCode(data[frameStart], data[frameStart + 1], data[frameStart + 2], data[frameStart + 3]);
+                var frame = {
+                    id: frameHeader,
+                    data: data.subarray(frameStart + 10, frameStart + frameSize + 10)
+                };
+                frame.key = frame.id; // parse frame values
+
+                if (frameParsers[frame.id]) {
+                    // use frame specific parser
+                    frameParsers[frame.id](frame);
+                } else if (frame.id[0] === 'T') {
+                    // use text frame generic parser
+                    frameParsers['T*'](frame);
+                } else if (frame.id[0] === 'W') {
+                    // use URL link frame generic parser
+                    frameParsers['W*'](frame);
+                }
+                frames.push(frame);
+                frameStart += 10; // advance past the frame header
+
+                frameStart += frameSize; // advance past the frame body
+            } while (frameStart < tagSize);
+            return frames;
+        };
+        var parseId3 = {
+            parseId3Frames: parseId3Frames$1,
+            parseSyncSafeInteger: parseSyncSafeInteger$1,
+            frameParsers: frameParsers
+        };
+        /**
+         * mux.js
+         *
+         * Copyright (c) Brightcove
+         * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE
+         *
+         * Accepts program elementary stream (PES) data events and parses out
+         * ID3 metadata from them, if present.
+         * @see http://id3.org/id3v2.3.0
+         */
+
+        var Stream$5 = stream,
+            StreamTypes$3 = streamTypes,
+            id3 = parseId3,
+            MetadataStream;
+        MetadataStream = function (options) {
+            var settings = {
+                    // the bytes of the program-level descriptor field in MP2T
+                    // see ISO/IEC 13818-1:2013 (E), section 2.6 "Program and
+                    // program element descriptors"
+                    descriptor: options && options.descriptor
+                },
+                // the total size in bytes of the ID3 tag being parsed
+                tagSize = 0,
+                // tag data that is not complete enough to be parsed
+                buffer = [],
+                // the total number of bytes currently in the buffer
+                bufferSize = 0,
+                i;
+            MetadataStream.prototype.init.call(this); // calculate the text track in-band metadata track dispatch type
+            // https://html.spec.whatwg.org/multipage/embedded-content.html#steps-to-expose-a-media-resource-specific-text-track
+
+            this.dispatchType = StreamTypes$3.METADATA_STREAM_TYPE.toString(16);
+            if (settings.descriptor) {
+                for (i = 0; i < settings.descriptor.length; i++) {
+                    this.dispatchType += ('00' + settings.descriptor[i].toString(16)).slice(-2);
+                }
+            }
+            this.push = function (chunk) {
+                var tag, frameStart, frameSize, frame, i, frameHeader;
+                if (chunk.type !== 'timed-metadata') {
+                    return;
+                } // if data_alignment_indicator is set in the PES header,
+                // we must have the start of a new ID3 tag. Assume anything
+                // remaining in the buffer was malformed and throw it out
+
+                if (chunk.dataAlignmentIndicator) {
+                    bufferSize = 0;
+                    buffer.length = 0;
+                } // ignore events that don't look like ID3 data
+
+                if (buffer.length === 0 && (chunk.data.length < 10 || chunk.data[0] !== 'I'.charCodeAt(0) || chunk.data[1] !== 'D'.charCodeAt(0) || chunk.data[2] !== '3'.charCodeAt(0))) {
+                    this.trigger('log', {
+                        level: 'warn',
+                        message: 'Skipping unrecognized metadata packet'
+                    });
+                    return;
+                } // add this chunk to the data we've collected so far
+
+                buffer.push(chunk);
+                bufferSize += chunk.data.byteLength; // grab the size of the entire frame from the ID3 header
+
+                if (buffer.length === 1) {
+                    // the frame size is transmitted as a 28-bit integer in the
+                    // last four bytes of the ID3 header.
+                    // The most significant bit of each byte is dropped and the
+                    // results concatenated to recover the actual value.
+                    tagSize = id3.parseSyncSafeInteger(chunk.data.subarray(6, 10)); // ID3 reports the tag size excluding the header but it's more
+                    // convenient for our comparisons to include it
+
+                    tagSize += 10;
+                } // if the entire frame has not arrived, wait for more data
+
+                if (bufferSize < tagSize) {
+                    return;
+                } // collect the entire frame so it can be parsed
+
+                tag = {
+                    data: new Uint8Array(tagSize),
+                    frames: [],
+                    pts: buffer[0].pts,
+                    dts: buffer[0].dts
+                };
+                for (i = 0; i < tagSize;) {
+                    tag.data.set(buffer[0].data.subarray(0, tagSize - i), i);
+                    i += buffer[0].data.byteLength;
+                    bufferSize -= buffer[0].data.byteLength;
+                    buffer.shift();
+                } // find the start of the first frame and the end of the tag
+
+                frameStart = 10;
+                if (tag.data[5] & 0x40) {
+                    // advance the frame start past the extended header
+                    frameStart += 4; // header size field
+
+                    frameStart += id3.parseSyncSafeInteger(tag.data.subarray(10, 14)); // clip any padding off the end
+
+                    tagSize -= id3.parseSyncSafeInteger(tag.data.subarray(16, 20));
+                } // parse one or more ID3 frames
+                // http://id3.org/id3v2.3.0#ID3v2_frame_overview
+
+                do {
+                    // determine the number of bytes in this frame
+                    frameSize = id3.parseSyncSafeInteger(tag.data.subarray(frameStart + 4, frameStart + 8));
+                    if (frameSize < 1) {
+                        this.trigger('log', {
+                            level: 'warn',
+                            message: 'Malformed ID3 frame encountered. Skipping remaining metadata parsing.'
+                        }); // If the frame is malformed, don't parse any further frames but allow previous valid parsed frames
+                        // to be sent along.
+
+                        break;
+                    }
+                    frameHeader = String.fromCharCode(tag.data[frameStart], tag.data[frameStart + 1], tag.data[frameStart + 2], tag.data[frameStart + 3]);
+                    frame = {
+                        id: frameHeader,
+                        data: tag.data.subarray(frameStart + 10, frameStart + frameSize + 10)
+                    };
+                    frame.key = frame.id; // parse frame values
+
+                    if (id3.frameParsers[frame.id]) {
+                        // use frame specific parser
+                        id3.frameParsers[frame.id](frame);
+                    } else if (frame.id[0] === 'T') {
+                        // use text frame generic parser
+                        id3.frameParsers['T*'](frame);
+                    } else if (frame.id[0] === 'W') {
+                        // use URL link frame generic parser
+                        id3.frameParsers['W*'](frame);
+                    } // handle the special PRIV frame used to indicate the start
+                    // time for raw AAC data
+
+                    if (frame.owner === 'com.apple.streaming.transportStreamTimestamp') {
+                        var d = frame.data,
+                            size = (d[3] & 0x01) << 30 | d[4] << 22 | d[5] << 14 | d[6] << 6 | d[7] >>> 2;
+                        size *= 4;
+                        size += d[7] & 0x03;
+                        frame.timeStamp = size; // in raw AAC, all subsequent data will be timestamped based
+                        // on the value of this frame
+                        // we couldn't have known the appropriate pts and dts before
+                        // parsing this ID3 tag so set those values now
+
+                        if (tag.pts === undefined && tag.dts === undefined) {
+                            tag.pts = frame.timeStamp;
+                            tag.dts = frame.timeStamp;
+                        }
+                        this.trigger('timestamp', frame);
+                    }
+                    tag.frames.push(frame);
+                    frameStart += 10; // advance past the frame header
+
+                    frameStart += frameSize; // advance past the frame body
+                } while (frameStart < tagSize);
+                this.trigger('data', tag);
+            };
+        };
+        MetadataStream.prototype = new Stream$5();
+        var metadataStream = MetadataStream;
+        /**
+         * mux.js
+         *
+         * Copyright (c) Brightcove
+         * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE
+         *
+         * A stream-based mp2t to mp4 converter. This utility can be used to
+         * deliver mp4s to a SourceBuffer on platforms that support native
+         * Media Source Extensions.
+         */
+
+        var Stream$4 = stream,
+            CaptionStream$1 = captionStream,
+            StreamTypes$2 = streamTypes,
+            TimestampRolloverStream = timestampRolloverStream.TimestampRolloverStream; // object types
+
+        var TransportPacketStream, TransportParseStream, ElementaryStream; // constants
+
+        var MP2T_PACKET_LENGTH$1 = 188,
+            // bytes
+            SYNC_BYTE$1 = 0x47;
+        /**
+         * Splits an incoming stream of binary data into MPEG-2 Transport
+         * Stream packets.
+         */
+
+        TransportPacketStream = function () {
+            var buffer = new Uint8Array(MP2T_PACKET_LENGTH$1),
+                bytesInBuffer = 0;
+            TransportPacketStream.prototype.init.call(this); // Deliver new bytes to the stream.
+
+            /**
+             * Split a stream of data into M2TS packets
+             **/
+
+            this.push = function (bytes) {
+                var startIndex = 0,
+                    endIndex = MP2T_PACKET_LENGTH$1,
+                    everything; // If there are bytes remaining from the last segment, prepend them to the
+                // bytes that were pushed in
+
+                if (bytesInBuffer) {
+                    everything = new Uint8Array(bytes.byteLength + bytesInBuffer);
+                    everything.set(buffer.subarray(0, bytesInBuffer));
+                    everything.set(bytes, bytesInBuffer);
+                    bytesInBuffer = 0;
+                } else {
+                    everything = bytes;
+                } // While we have enough data for a packet
+
+                while (endIndex < everything.byteLength) {
+                    // Look for a pair of start and end sync bytes in the data..
+                    if (everything[startIndex] === SYNC_BYTE$1 && everything[endIndex] === SYNC_BYTE$1) {
+                        // We found a packet so emit it and jump one whole packet forward in
+                        // the stream
+                        this.trigger('data', everything.subarray(startIndex, endIndex));
+                        startIndex += MP2T_PACKET_LENGTH$1;
+                        endIndex += MP2T_PACKET_LENGTH$1;
+                        continue;
+                    } // If we get here, we have somehow become de-synchronized and we need to step
+                    // forward one byte at a time until we find a pair of sync bytes that denote
+                    // a packet
+
+                    startIndex++;
+                    endIndex++;
+                } // If there was some data left over at the end of the segment that couldn't
+                // possibly be a whole packet, keep it because it might be the start of a packet
+                // that continues in the next segment
+
+                if (startIndex < everything.byteLength) {
+                    buffer.set(everything.subarray(startIndex), 0);
+                    bytesInBuffer = everything.byteLength - startIndex;
+                }
+            };
+            /**
+             * Passes identified M2TS packets to the TransportParseStream to be parsed
+             **/
+
+            this.flush = function () {
+                // If the buffer contains a whole packet when we are being flushed, emit it
+                // and empty the buffer. Otherwise hold onto the data because it may be
+                // important for decoding the next segment
+                if (bytesInBuffer === MP2T_PACKET_LENGTH$1 && buffer[0] === SYNC_BYTE$1) {
+                    this.trigger('data', buffer);
+                    bytesInBuffer = 0;
+                }
+                this.trigger('done');
+            };
+            this.endTimeline = function () {
+                this.flush();
+                this.trigger('endedtimeline');
+            };
+            this.reset = function () {
+                bytesInBuffer = 0;
+                this.trigger('reset');
+            };
+        };
+        TransportPacketStream.prototype = new Stream$4();
+        /**
+         * Accepts an MP2T TransportPacketStream and emits data events with parsed
+         * forms of the individual transport stream packets.
+         */
+
+        TransportParseStream = function () {
+            var parsePsi, parsePat, parsePmt, self;
+            TransportParseStream.prototype.init.call(this);
+            self = this;
+            this.packetsWaitingForPmt = [];
+            this.programMapTable = undefined;
+            parsePsi = function (payload, psi) {
+                var offset = 0; // PSI packets may be split into multiple sections and those
+                // sections may be split into multiple packets. If a PSI
+                // section starts in this packet, the payload_unit_start_indicator
+                // will be true and the first byte of the payload will indicate
+                // the offset from the current position to the start of the
+                // section.
+
+                if (psi.payloadUnitStartIndicator) {
+                    offset += payload[offset] + 1;
+                }
+                if (psi.type === 'pat') {
+                    parsePat(payload.subarray(offset), psi);
+                } else {
+                    parsePmt(payload.subarray(offset), psi);
+                }
+            };
+            parsePat = function (payload, pat) {
+                pat.section_number = payload[7]; // eslint-disable-line camelcase
+
+                pat.last_section_number = payload[8]; // eslint-disable-line camelcase
+                // skip the PSI header and parse the first PMT entry
+
+                self.pmtPid = (payload[10] & 0x1F) << 8 | payload[11];
+                pat.pmtPid = self.pmtPid;
+            };
+            /**
+             * Parse out the relevant fields of a Program Map Table (PMT).
+             * @param payload {Uint8Array} the PMT-specific portion of an MP2T
+             * packet. The first byte in this array should be the table_id
+             * field.
+             * @param pmt {object} the object that should be decorated with
+             * fields parsed from the PMT.
+             */
+
+            parsePmt = function (payload, pmt) {
+                var sectionLength, tableEnd, programInfoLength, offset; // PMTs can be sent ahead of the time when they should actually
+                // take effect. We don't believe this should ever be the case
+                // for HLS but we'll ignore "forward" PMT declarations if we see
+                // them. Future PMT declarations have the current_next_indicator
+                // set to zero.
+
+                if (!(payload[5] & 0x01)) {
+                    return;
+                } // overwrite any existing program map table
+
+                self.programMapTable = {
+                    video: null,
+                    audio: null,
+                    'timed-metadata': {}
+                }; // the mapping table ends at the end of the current section
+
+                sectionLength = (payload[1] & 0x0f) << 8 | payload[2];
+                tableEnd = 3 + sectionLength - 4; // to determine where the table is, we have to figure out how
+                // long the program info descriptors are
+
+                programInfoLength = (payload[10] & 0x0f) << 8 | payload[11]; // advance the offset to the first entry in the mapping table
+
+                offset = 12 + programInfoLength;
+                while (offset < tableEnd) {
+                    var streamType = payload[offset];
+                    var pid = (payload[offset + 1] & 0x1F) << 8 | payload[offset + 2]; // only map a single elementary_pid for audio and video stream types
+                    // TODO: should this be done for metadata too? for now maintain behavior of
+                    //       multiple metadata streams
+
+                    if (streamType === StreamTypes$2.H264_STREAM_TYPE && self.programMapTable.video === null) {
+                        self.programMapTable.video = pid;
+                    } else if (streamType === StreamTypes$2.ADTS_STREAM_TYPE && self.programMapTable.audio === null) {
+                        self.programMapTable.audio = pid;
+                    } else if (streamType === StreamTypes$2.METADATA_STREAM_TYPE) {
+                        // map pid to stream type for metadata streams
+                        self.programMapTable['timed-metadata'][pid] = streamType;
+                    } // move to the next table entry
+                    // skip past the elementary stream descriptors, if present
+
+                    offset += ((payload[offset + 3] & 0x0F) << 8 | payload[offset + 4]) + 5;
+                } // record the map on the packet as well
+
+                pmt.programMapTable = self.programMapTable;
+            };
+            /**
+             * Deliver a new MP2T packet to the next stream in the pipeline.
+             */
+
+            this.push = function (packet) {
+                var result = {},
+                    offset = 4;
+                result.payloadUnitStartIndicator = !!(packet[1] & 0x40); // pid is a 13-bit field starting at the last bit of packet[1]
+
+                result.pid = packet[1] & 0x1f;
+                result.pid <<= 8;
+                result.pid |= packet[2]; // if an adaption field is present, its length is specified by the
+                // fifth byte of the TS packet header. The adaptation field is
+                // used to add stuffing to PES packets that don't fill a complete
+                // TS packet, and to specify some forms of timing and control data
+                // that we do not currently use.
+
+                if ((packet[3] & 0x30) >>> 4 > 0x01) {
+                    offset += packet[offset] + 1;
+                } // parse the rest of the packet based on the type
+
+                if (result.pid === 0) {
+                    result.type = 'pat';
+                    parsePsi(packet.subarray(offset), result);
+                    this.trigger('data', result);
+                } else if (result.pid === this.pmtPid) {
+                    result.type = 'pmt';
+                    parsePsi(packet.subarray(offset), result);
+                    this.trigger('data', result); // if there are any packets waiting for a PMT to be found, process them now
+
+                    while (this.packetsWaitingForPmt.length) {
+                        this.processPes_.apply(this, this.packetsWaitingForPmt.shift());
+                    }
+                } else if (this.programMapTable === undefined) {
+                    // When we have not seen a PMT yet, defer further processing of
+                    // PES packets until one has been parsed
+                    this.packetsWaitingForPmt.push([packet, offset, result]);
+                } else {
+                    this.processPes_(packet, offset, result);
+                }
+            };
+            this.processPes_ = function (packet, offset, result) {
+                // set the appropriate stream type
+                if (result.pid === this.programMapTable.video) {
+                    result.streamType = StreamTypes$2.H264_STREAM_TYPE;
+                } else if (result.pid === this.programMapTable.audio) {
+                    result.streamType = StreamTypes$2.ADTS_STREAM_TYPE;
+                } else {
+                    // if not video or audio, it is timed-metadata or unknown
+                    // if unknown, streamType will be undefined
+                    result.streamType = this.programMapTable['timed-metadata'][result.pid];
+                }
+                result.type = 'pes';
+                result.data = packet.subarray(offset);
+                this.trigger('data', result);
+            };
+        };
+        TransportParseStream.prototype = new Stream$4();
+        TransportParseStream.STREAM_TYPES = {
+            h264: 0x1b,
+            adts: 0x0f
+        };
+        /**
+         * Reconsistutes program elementary stream (PES) packets from parsed
+         * transport stream packets. That is, if you pipe an
+         * mp2t.TransportParseStream into a mp2t.ElementaryStream, the output
+         * events will be events which capture the bytes for individual PES
+         * packets plus relevant metadata that has been extracted from the
+         * container.
+         */
+
+        ElementaryStream = function () {
+            var self = this,
+                segmentHadPmt = false,
+                // PES packet fragments
+                video = {
+                    data: [],
+                    size: 0
+                },
+                audio = {
+                    data: [],
+                    size: 0
+                },
+                timedMetadata = {
+                    data: [],
+                    size: 0
+                },
+                programMapTable,
+                parsePes = function (payload, pes) {
+                    var ptsDtsFlags;
+                    const startPrefix = payload[0] << 16 | payload[1] << 8 | payload[2]; // default to an empty array
+
+                    pes.data = new Uint8Array(); // In certain live streams, the start of a TS fragment has ts packets
+                    // that are frame data that is continuing from the previous fragment. This
+                    // is to check that the pes data is the start of a new pes payload
+
+                    if (startPrefix !== 1) {
+                        return;
+                    } // get the packet length, this will be 0 for video
+
+                    pes.packetLength = 6 + (payload[4] << 8 | payload[5]); // find out if this packets starts a new keyframe
+
+                    pes.dataAlignmentIndicator = (payload[6] & 0x04) !== 0; // PES packets may be annotated with a PTS value, or a PTS value
+                    // and a DTS value. Determine what combination of values is
+                    // available to work with.
+
+                    ptsDtsFlags = payload[7]; // PTS and DTS are normally stored as a 33-bit number.  Javascript
+                    // performs all bitwise operations on 32-bit integers but javascript
+                    // supports a much greater range (52-bits) of integer using standard
+                    // mathematical operations.
+                    // We construct a 31-bit value using bitwise operators over the 31
+                    // most significant bits and then multiply by 4 (equal to a left-shift
+                    // of 2) before we add the final 2 least significant bits of the
+                    // timestamp (equal to an OR.)
+
+                    if (ptsDtsFlags & 0xC0) {
+                        // the PTS and DTS are not written out directly. For information
+                        // on how they are encoded, see
+                        // http://dvd.sourceforge.net/dvdinfo/pes-hdr.html
+                        pes.pts = (payload[9] & 0x0E) << 27 | (payload[10] & 0xFF) << 20 | (payload[11] & 0xFE) << 12 | (payload[12] & 0xFF) << 5 | (payload[13] & 0xFE) >>> 3;
+                        pes.pts *= 4; // Left shift by 2
+
+                        pes.pts += (payload[13] & 0x06) >>> 1; // OR by the two LSBs
+
+                        pes.dts = pes.pts;
+                        if (ptsDtsFlags & 0x40) {
+                            pes.dts = (payload[14] & 0x0E) << 27 | (payload[15] & 0xFF) << 20 | (payload[16] & 0xFE) << 12 | (payload[17] & 0xFF) << 5 | (payload[18] & 0xFE) >>> 3;
+                            pes.dts *= 4; // Left shift by 2
+
+                            pes.dts += (payload[18] & 0x06) >>> 1; // OR by the two LSBs
+                        }
+                    } // the data section starts immediately after the PES header.
+                    // pes_header_data_length specifies the number of header bytes
+                    // that follow the last byte of the field.
+
+                    pes.data = payload.subarray(9 + payload[8]);
+                },
+                /**
+                 * Pass completely parsed PES packets to the next stream in the pipeline
+                 **/
+                flushStream = function (stream, type, forceFlush) {
+                    var packetData = new Uint8Array(stream.size),
+                        event = {
+                            type: type
+                        },
+                        i = 0,
+                        offset = 0,
+                        packetFlushable = false,
+                        fragment; // do nothing if there is not enough buffered data for a complete
+                    // PES header
+
+                    if (!stream.data.length || stream.size < 9) {
+                        return;
+                    }
+                    event.trackId = stream.data[0].pid; // reassemble the packet
+
+                    for (i = 0; i < stream.data.length; i++) {
+                        fragment = stream.data[i];
+                        packetData.set(fragment.data, offset);
+                        offset += fragment.data.byteLength;
+                    } // parse assembled packet's PES header
+
+                    parsePes(packetData, event); // non-video PES packets MUST have a non-zero PES_packet_length
+                    // check that there is enough stream data to fill the packet
+
+                    packetFlushable = type === 'video' || event.packetLength <= stream.size; // flush pending packets if the conditions are right
+
+                    if (forceFlush || packetFlushable) {
+                        stream.size = 0;
+                        stream.data.length = 0;
+                    } // only emit packets that are complete. this is to avoid assembling
+                    // incomplete PES packets due to poor segmentation
+
+                    if (packetFlushable) {
+                        self.trigger('data', event);
+                    }
+                };
+            ElementaryStream.prototype.init.call(this);
+            /**
+             * Identifies M2TS packet types and parses PES packets using metadata
+             * parsed from the PMT
+             **/
+
+            this.push = function (data) {
+                ({
+                    pat: function () {// we have to wait for the PMT to arrive as well before we
+                        // have any meaningful metadata
+                    },
+                    pes: function () {
+                        var stream, streamType;
+                        switch (data.streamType) {
+                            case StreamTypes$2.H264_STREAM_TYPE:
+                                stream = video;
+                                streamType = 'video';
+                                break;
+                            case StreamTypes$2.ADTS_STREAM_TYPE:
+                                stream = audio;
+                                streamType = 'audio';
+                                break;
+                            case StreamTypes$2.METADATA_STREAM_TYPE:
+                                stream = timedMetadata;
+                                streamType = 'timed-metadata';
+                                break;
+                            default:
+                                // ignore unknown stream types
+                                return;
+                        } // if a new packet is starting, we can flush the completed
+                        // packet
+
+                        if (data.payloadUnitStartIndicator) {
+                            flushStream(stream, streamType, true);
+                        } // buffer this fragment until we are sure we've received the
+                        // complete payload
+
+                        stream.data.push(data);
+                        stream.size += data.data.byteLength;
+                    },
+                    pmt: function () {
+                        var event = {
+                            type: 'metadata',
+                            tracks: []
+                        };
+                        programMapTable = data.programMapTable; // translate audio and video streams to tracks
+
+                        if (programMapTable.video !== null) {
+                            event.tracks.push({
+                                timelineStartInfo: {
+                                    baseMediaDecodeTime: 0
+                                },
+                                id: +programMapTable.video,
+                                codec: 'avc',
+                                type: 'video'
+                            });
+                        }
+                        if (programMapTable.audio !== null) {
+                            event.tracks.push({
+                                timelineStartInfo: {
+                                    baseMediaDecodeTime: 0
+                                },
+                                id: +programMapTable.audio,
+                                codec: 'adts',
+                                type: 'audio'
+                            });
+                        }
+                        segmentHadPmt = true;
+                        self.trigger('data', event);
+                    }
+                })[data.type]();
+            };
+            this.reset = function () {
+                video.size = 0;
+                video.data.length = 0;
+                audio.size = 0;
+                audio.data.length = 0;
+                this.trigger('reset');
+            };
+            /**
+             * Flush any remaining input. Video PES packets may be of variable
+             * length. Normally, the start of a new video packet can trigger the
+             * finalization of the previous packet. That is not possible if no
+             * more video is forthcoming, however. In that case, some other
+             * mechanism (like the end of the file) has to be employed. When it is
+             * clear that no additional data is forthcoming, calling this method
+             * will flush the buffered packets.
+             */
+
+            this.flushStreams_ = function () {
+                // !!THIS ORDER IS IMPORTANT!!
+                // video first then audio
+                flushStream(video, 'video');
+                flushStream(audio, 'audio');
+                flushStream(timedMetadata, 'timed-metadata');
+            };
+            this.flush = function () {
+                // if on flush we haven't had a pmt emitted
+                // and we have a pmt to emit. emit the pmt
+                // so that we trigger a trackinfo downstream.
+                if (!segmentHadPmt && programMapTable) {
+                    var pmt = {
+                        type: 'metadata',
+                        tracks: []
+                    }; // translate audio and video streams to tracks
+
+                    if (programMapTable.video !== null) {
+                        pmt.tracks.push({
+                            timelineStartInfo: {
+                                baseMediaDecodeTime: 0
+                            },
+                            id: +programMapTable.video,
+                            codec: 'avc',
+                            type: 'video'
+                        });
+                    }
+                    if (programMapTable.audio !== null) {
+                        pmt.tracks.push({
+                            timelineStartInfo: {
+                                baseMediaDecodeTime: 0
+                            },
+                            id: +programMapTable.audio,
+                            codec: 'adts',
+                            type: 'audio'
+                        });
+                    }
+                    self.trigger('data', pmt);
+                }
+                segmentHadPmt = false;
+                this.flushStreams_();
+                this.trigger('done');
+            };
+        };
+        ElementaryStream.prototype = new Stream$4();
+        var m2ts$1 = {
+            PAT_PID: 0x0000,
+            MP2T_PACKET_LENGTH: MP2T_PACKET_LENGTH$1,
+            TransportPacketStream: TransportPacketStream,
+            TransportParseStream: TransportParseStream,
+            ElementaryStream: ElementaryStream,
+            TimestampRolloverStream: TimestampRolloverStream,
+            CaptionStream: CaptionStream$1.CaptionStream,
+            Cea608Stream: CaptionStream$1.Cea608Stream,
+            Cea708Stream: CaptionStream$1.Cea708Stream,
+            MetadataStream: metadataStream
+        };
+        for (var type in StreamTypes$2) {
+            if (StreamTypes$2.hasOwnProperty(type)) {
+                m2ts$1[type] = StreamTypes$2[type];
+            }
+        }
+        var m2ts_1 = m2ts$1;
+        /**
+         * mux.js
+         *
+         * Copyright (c) Brightcove
+         * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE
+         */
+
+        var Stream$3 = stream;
+        var ONE_SECOND_IN_TS$2 = clock$2.ONE_SECOND_IN_TS;
+        var AdtsStream$1;
+        var ADTS_SAMPLING_FREQUENCIES$1 = [96000, 88200, 64000, 48000, 44100, 32000, 24000, 22050, 16000, 12000, 11025, 8000, 7350];
+        /*
+     * Accepts a ElementaryStream and emits data events with parsed
+     * AAC Audio Frames of the individual packets. Input audio in ADTS
+     * format is unpacked and re-emitted as AAC frames.
+     *
+     * @see http://wiki.multimedia.cx/index.php?title=ADTS
+     * @see http://wiki.multimedia.cx/?title=Understanding_AAC
+     */
+
+        AdtsStream$1 = function (handlePartialSegments) {
+            var buffer,
+                frameNum = 0;
+            AdtsStream$1.prototype.init.call(this);
+            this.skipWarn_ = function (start, end) {
+                this.trigger('log', {
+                    level: 'warn',
+                    message: `adts skiping bytes ${start} to ${end} in frame ${frameNum} outside syncword`
+                });
+            };
+            this.push = function (packet) {
+                var i = 0,
+                    frameLength,
+                    protectionSkipBytes,
+                    oldBuffer,
+                    sampleCount,
+                    adtsFrameDuration;
+                if (!handlePartialSegments) {
+                    frameNum = 0;
+                }
+                if (packet.type !== 'audio') {
+                    // ignore non-audio data
+                    return;
+                } // Prepend any data in the buffer to the input data so that we can parse
+                // aac frames the cross a PES packet boundary
+
+                if (buffer && buffer.length) {
+                    oldBuffer = buffer;
+                    buffer = new Uint8Array(oldBuffer.byteLength + packet.data.byteLength);
+                    buffer.set(oldBuffer);
+                    buffer.set(packet.data, oldBuffer.byteLength);
+                } else {
+                    buffer = packet.data;
+                } // unpack any ADTS frames which have been fully received
+                // for details on the ADTS header, see http://wiki.multimedia.cx/index.php?title=ADTS
+
+                var skip; // We use i + 7 here because we want to be able to parse the entire header.
+                // If we don't have enough bytes to do that, then we definitely won't have a full frame.
+
+                while (i + 7 < buffer.length) {
+                    // Look for the start of an ADTS header..
+                    if (buffer[i] !== 0xFF || (buffer[i + 1] & 0xF6) !== 0xF0) {
+                        if (typeof skip !== 'number') {
+                            skip = i;
+                        } // If a valid header was not found,  jump one forward and attempt to
+                        // find a valid ADTS header starting at the next byte
+
+                        i++;
+                        continue;
+                    }
+                    if (typeof skip === 'number') {
+                        this.skipWarn_(skip, i);
+                        skip = null;
+                    } // The protection skip bit tells us if we have 2 bytes of CRC data at the
+                    // end of the ADTS header
+
+                    protectionSkipBytes = (~buffer[i + 1] & 0x01) * 2; // Frame length is a 13 bit integer starting 16 bits from the
+                    // end of the sync sequence
+                    // NOTE: frame length includes the size of the header
+
+                    frameLength = (buffer[i + 3] & 0x03) << 11 | buffer[i + 4] << 3 | (buffer[i + 5] & 0xe0) >> 5;
+                    sampleCount = ((buffer[i + 6] & 0x03) + 1) * 1024;
+                    adtsFrameDuration = sampleCount * ONE_SECOND_IN_TS$2 / ADTS_SAMPLING_FREQUENCIES$1[(buffer[i + 2] & 0x3c) >>> 2]; // If we don't have enough data to actually finish this ADTS frame,
+                    // then we have to wait for more data
+
+                    if (buffer.byteLength - i < frameLength) {
+                        break;
+                    } // Otherwise, deliver the complete AAC frame
+
+                    this.trigger('data', {
+                        pts: packet.pts + frameNum * adtsFrameDuration,
+                        dts: packet.dts + frameNum * adtsFrameDuration,
+                        sampleCount: sampleCount,
+                        audioobjecttype: (buffer[i + 2] >>> 6 & 0x03) + 1,
+                        channelcount: (buffer[i + 2] & 1) << 2 | (buffer[i + 3] & 0xc0) >>> 6,
+                        samplerate: ADTS_SAMPLING_FREQUENCIES$1[(buffer[i + 2] & 0x3c) >>> 2],
+                        samplingfrequencyindex: (buffer[i + 2] & 0x3c) >>> 2,
+                        // assume ISO/IEC 14496-12 AudioSampleEntry default of 16
+                        samplesize: 16,
+                        // data is the frame without it's header
+                        data: buffer.subarray(i + 7 + protectionSkipBytes, i + frameLength)
+                    });
+                    frameNum++;
+                    i += frameLength;
+                }
+                if (typeof skip === 'number') {
+                    this.skipWarn_(skip, i);
+                    skip = null;
+                } // remove processed bytes from the buffer.
+
+                buffer = buffer.subarray(i);
+            };
+            this.flush = function () {
+                frameNum = 0;
+                this.trigger('done');
+            };
+            this.reset = function () {
+                buffer = void 0;
+                this.trigger('reset');
+            };
+            this.endTimeline = function () {
+                buffer = void 0;
+                this.trigger('endedtimeline');
+            };
+        };
+        AdtsStream$1.prototype = new Stream$3();
+        var adts = AdtsStream$1;
+        /**
+         * mux.js
+         *
+         * Copyright (c) Brightcove
+         * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE
+         */
+
+        var ExpGolomb$1;
+        /**
+         * Parser for exponential Golomb codes, a variable-bitwidth number encoding
+         * scheme used by h264.
+         */
+
+        ExpGolomb$1 = function (workingData) {
+            var
+                // the number of bytes left to examine in workingData
+                workingBytesAvailable = workingData.byteLength,
+                // the current word being examined
+                workingWord = 0,
+                // :uint
+                // the number of bits left to examine in the current word
+                workingBitsAvailable = 0; // :uint;
+            // ():uint
+
+            this.length = function () {
+                return 8 * workingBytesAvailable;
+            }; // ():uint
+
+            this.bitsAvailable = function () {
+                return 8 * workingBytesAvailable + workingBitsAvailable;
+            }; // ():void
+
+            this.loadWord = function () {
+                var position = workingData.byteLength - workingBytesAvailable,
+                    workingBytes = new Uint8Array(4),
+                    availableBytes = Math.min(4, workingBytesAvailable);
+                if (availableBytes === 0) {
+                    throw new Error('no bytes available');
+                }
+                workingBytes.set(workingData.subarray(position, position + availableBytes));
+                workingWord = new DataView(workingBytes.buffer).getUint32(0); // track the amount of workingData that has been processed
+
+                workingBitsAvailable = availableBytes * 8;
+                workingBytesAvailable -= availableBytes;
+            }; // (count:int):void
+
+            this.skipBits = function (count) {
+                var skipBytes; // :int
+
+                if (workingBitsAvailable > count) {
+                    workingWord <<= count;
+                    workingBitsAvailable -= count;
+                } else {
+                    count -= workingBitsAvailable;
+                    skipBytes = Math.floor(count / 8);
+                    count -= skipBytes * 8;
+                    workingBytesAvailable -= skipBytes;
+                    this.loadWord();
+                    workingWord <<= count;
+                    workingBitsAvailable -= count;
+                }
+            }; // (size:int):uint
+
+            this.readBits = function (size) {
+                var bits = Math.min(workingBitsAvailable, size),
+                    // :uint
+                    valu = workingWord >>> 32 - bits; // :uint
+                // if size > 31, handle error
+
+                workingBitsAvailable -= bits;
+                if (workingBitsAvailable > 0) {
+                    workingWord <<= bits;
+                } else if (workingBytesAvailable > 0) {
+                    this.loadWord();
+                }
+                bits = size - bits;
+                if (bits > 0) {
+                    return valu << bits | this.readBits(bits);
+                }
+                return valu;
+            }; // ():uint
+
+            this.skipLeadingZeros = function () {
+                var leadingZeroCount; // :uint
+
+                for (leadingZeroCount = 0; leadingZeroCount < workingBitsAvailable; ++leadingZeroCount) {
+                    if ((workingWord & 0x80000000 >>> leadingZeroCount) !== 0) {
+                        // the first bit of working word is 1
+                        workingWord <<= leadingZeroCount;
+                        workingBitsAvailable -= leadingZeroCount;
+                        return leadingZeroCount;
+                    }
+                } // we exhausted workingWord and still have not found a 1
+
+                this.loadWord();
+                return leadingZeroCount + this.skipLeadingZeros();
+            }; // ():void
+
+            this.skipUnsignedExpGolomb = function () {
+                this.skipBits(1 + this.skipLeadingZeros());
+            }; // ():void
+
+            this.skipExpGolomb = function () {
+                this.skipBits(1 + this.skipLeadingZeros());
+            }; // ():uint
+
+            this.readUnsignedExpGolomb = function () {
+                var clz = this.skipLeadingZeros(); // :uint
+
+                return this.readBits(clz + 1) - 1;
+            }; // ():int
+
+            this.readExpGolomb = function () {
+                var valu = this.readUnsignedExpGolomb(); // :int
+
+                if (0x01 & valu) {
+                    // the number is odd if the low order bit is set
+                    return 1 + valu >>> 1; // add 1 to make it even, and divide by 2
+                }
+
+                return -1 * (valu >>> 1); // divide by two then make it negative
+            }; // Some convenience functions
+            // :Boolean
+
+            this.readBoolean = function () {
+                return this.readBits(1) === 1;
+            }; // ():int
+
+            this.readUnsignedByte = function () {
+                return this.readBits(8);
+            };
+            this.loadWord();
+        };
+        var expGolomb = ExpGolomb$1;
+        /**
+         * mux.js
+         *
+         * Copyright (c) Brightcove
+         * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE
+         */
+
+        var Stream$2 = stream;
+        var ExpGolomb = expGolomb;
+        var H264Stream$1, NalByteStream;
+        var PROFILES_WITH_OPTIONAL_SPS_DATA;
+        /**
+         * Accepts a NAL unit byte stream and unpacks the embedded NAL units.
+         */
+
+        NalByteStream = function () {
+            var syncPoint = 0,
+                i,
+                buffer;
+            NalByteStream.prototype.init.call(this);
+            /*
+       * Scans a byte stream and triggers a data event with the NAL units found.
+       * @param {Object} data Event received from H264Stream
+       * @param {Uint8Array} data.data The h264 byte stream to be scanned
+       *
+       * @see H264Stream.push
        */
 
-      var setSeekingHandlers = function setSeekingHandlers(fn) {
-        ['main', 'audio'].forEach(function (type) {
-          mpc[type + "SegmentLoader_"][fn]('appended', _this.seekingAppendCheck_);
-        });
-      };
+            this.push = function (data) {
+                var swapBuffer;
+                if (!buffer) {
+                    buffer = data.data;
+                } else {
+                    swapBuffer = new Uint8Array(buffer.byteLength + data.data.byteLength);
+                    swapBuffer.set(buffer);
+                    swapBuffer.set(data.data, buffer.byteLength);
+                    buffer = swapBuffer;
+                }
+                var len = buffer.byteLength; // Rec. ITU-T H.264, Annex B
+                // scan for NAL unit boundaries
+                // a match looks like this:
+                // 0 0 1 .. NAL .. 0 0 1
+                // ^ sync point        ^ i
+                // or this:
+                // 0 0 1 .. NAL .. 0 0 0
+                // ^ sync point        ^ i
+                // advance the sync point to a NAL start, if necessary
 
-      this.seekingAppendCheck_ = function () {
-        if (_this.fixesBadSeeks_()) {
-          _this.consecutiveUpdates = 0;
-          _this.lastRecordedTime = _this.tech_.currentTime();
-          setSeekingHandlers('off');
+                for (; syncPoint < len - 3; syncPoint++) {
+                    if (buffer[syncPoint + 2] === 1) {
+                        // the sync point is properly aligned
+                        i = syncPoint + 5;
+                        break;
+                    }
+                }
+                while (i < len) {
+                    // look at the current byte to determine if we've hit the end of
+                    // a NAL unit boundary
+                    switch (buffer[i]) {
+                        case 0:
+                            // skip past non-sync sequences
+                            if (buffer[i - 1] !== 0) {
+                                i += 2;
+                                break;
+                            } else if (buffer[i - 2] !== 0) {
+                                i++;
+                                break;
+                            } // deliver the NAL unit if it isn't empty
+
+                            if (syncPoint + 3 !== i - 2) {
+                                this.trigger('data', buffer.subarray(syncPoint + 3, i - 2));
+                            } // drop trailing zeroes
+
+                            do {
+                                i++;
+                            } while (buffer[i] !== 1 && i < len);
+                            syncPoint = i - 2;
+                            i += 3;
+                            break;
+                        case 1:
+                            // skip past non-sync sequences
+                            if (buffer[i - 1] !== 0 || buffer[i - 2] !== 0) {
+                                i += 3;
+                                break;
+                            } // deliver the NAL unit
+
+                            this.trigger('data', buffer.subarray(syncPoint + 3, i - 2));
+                            syncPoint = i - 2;
+                            i += 3;
+                            break;
+                        default:
+                            // the current byte isn't a one or zero, so it cannot be part
+                            // of a sync sequence
+                            i += 3;
+                            break;
+                    }
+                } // filter out the NAL units that were delivered
+
+                buffer = buffer.subarray(syncPoint);
+                i -= syncPoint;
+                syncPoint = 0;
+            };
+            this.reset = function () {
+                buffer = null;
+                syncPoint = 0;
+                this.trigger('reset');
+            };
+            this.flush = function () {
+                // deliver the last buffered NAL unit
+                if (buffer && buffer.byteLength > 3) {
+                    this.trigger('data', buffer.subarray(syncPoint + 3));
+                } // reset the stream state
+
+                buffer = null;
+                syncPoint = 0;
+                this.trigger('done');
+            };
+            this.endTimeline = function () {
+                this.flush();
+                this.trigger('endedtimeline');
+            };
+        };
+        NalByteStream.prototype = new Stream$2(); // values of profile_idc that indicate additional fields are included in the SPS
+        // see Recommendation ITU-T H.264 (4/2013),
+        // 7.3.2.1.1 Sequence parameter set data syntax
+
+        PROFILES_WITH_OPTIONAL_SPS_DATA = {
+            100: true,
+            110: true,
+            122: true,
+            244: true,
+            44: true,
+            83: true,
+            86: true,
+            118: true,
+            128: true,
+            // TODO: the three profiles below don't
+            // appear to have sps data in the specificiation anymore?
+            138: true,
+            139: true,
+            134: true
+        };
+        /**
+         * Accepts input from a ElementaryStream and produces H.264 NAL unit data
+         * events.
+         */
+
+        H264Stream$1 = function () {
+            var nalByteStream = new NalByteStream(),
+                self,
+                trackId,
+                currentPts,
+                currentDts,
+                discardEmulationPreventionBytes,
+                readSequenceParameterSet,
+                skipScalingList;
+            H264Stream$1.prototype.init.call(this);
+            self = this;
+            /*
+       * Pushes a packet from a stream onto the NalByteStream
+       *
+       * @param {Object} packet - A packet received from a stream
+       * @param {Uint8Array} packet.data - The raw bytes of the packet
+       * @param {Number} packet.dts - Decode timestamp of the packet
+       * @param {Number} packet.pts - Presentation timestamp of the packet
+       * @param {Number} packet.trackId - The id of the h264 track this packet came from
+       * @param {('video'|'audio')} packet.type - The type of packet
+       *
+       */
+
+            this.push = function (packet) {
+                if (packet.type !== 'video') {
+                    return;
+                }
+                trackId = packet.trackId;
+                currentPts = packet.pts;
+                currentDts = packet.dts;
+                nalByteStream.push(packet);
+            };
+            /*
+       * Identify NAL unit types and pass on the NALU, trackId, presentation and decode timestamps
+       * for the NALUs to the next stream component.
+       * Also, preprocess caption and sequence parameter NALUs.
+       *
+       * @param {Uint8Array} data - A NAL unit identified by `NalByteStream.push`
+       * @see NalByteStream.push
+       */
+
+            nalByteStream.on('data', function (data) {
+                var event = {
+                    trackId: trackId,
+                    pts: currentPts,
+                    dts: currentDts,
+                    data: data,
+                    nalUnitTypeCode: data[0] & 0x1f
+                };
+                switch (event.nalUnitTypeCode) {
+                    case 0x05:
+                        event.nalUnitType = 'slice_layer_without_partitioning_rbsp_idr';
+                        break;
+                    case 0x06:
+                        event.nalUnitType = 'sei_rbsp';
+                        event.escapedRBSP = discardEmulationPreventionBytes(data.subarray(1));
+                        break;
+                    case 0x07:
+                        event.nalUnitType = 'seq_parameter_set_rbsp';
+                        event.escapedRBSP = discardEmulationPreventionBytes(data.subarray(1));
+                        event.config = readSequenceParameterSet(event.escapedRBSP);
+                        break;
+                    case 0x08:
+                        event.nalUnitType = 'pic_parameter_set_rbsp';
+                        break;
+                    case 0x09:
+                        event.nalUnitType = 'access_unit_delimiter_rbsp';
+                        break;
+                } // This triggers data on the H264Stream
+
+                self.trigger('data', event);
+            });
+            nalByteStream.on('done', function () {
+                self.trigger('done');
+            });
+            nalByteStream.on('partialdone', function () {
+                self.trigger('partialdone');
+            });
+            nalByteStream.on('reset', function () {
+                self.trigger('reset');
+            });
+            nalByteStream.on('endedtimeline', function () {
+                self.trigger('endedtimeline');
+            });
+            this.flush = function () {
+                nalByteStream.flush();
+            };
+            this.partialFlush = function () {
+                nalByteStream.partialFlush();
+            };
+            this.reset = function () {
+                nalByteStream.reset();
+            };
+            this.endTimeline = function () {
+                nalByteStream.endTimeline();
+            };
+            /**
+             * Advance the ExpGolomb decoder past a scaling list. The scaling
+             * list is optionally transmitted as part of a sequence parameter
+             * set and is not relevant to transmuxing.
+             * @param count {number} the number of entries in this scaling list
+             * @param expGolombDecoder {object} an ExpGolomb pointed to the
+             * start of a scaling list
+             * @see Recommendation ITU-T H.264, Section 7.3.2.1.1.1
+             */
+
+            skipScalingList = function (count, expGolombDecoder) {
+                var lastScale = 8,
+                    nextScale = 8,
+                    j,
+                    deltaScale;
+                for (j = 0; j < count; j++) {
+                    if (nextScale !== 0) {
+                        deltaScale = expGolombDecoder.readExpGolomb();
+                        nextScale = (lastScale + deltaScale + 256) % 256;
+                    }
+                    lastScale = nextScale === 0 ? lastScale : nextScale;
+                }
+            };
+            /**
+             * Expunge any "Emulation Prevention" bytes from a "Raw Byte
+             * Sequence Payload"
+             * @param data {Uint8Array} the bytes of a RBSP from a NAL
+             * unit
+             * @return {Uint8Array} the RBSP without any Emulation
+             * Prevention Bytes
+             */
+
+            discardEmulationPreventionBytes = function (data) {
+                var length = data.byteLength,
+                    emulationPreventionBytesPositions = [],
+                    i = 1,
+                    newLength,
+                    newData; // Find all `Emulation Prevention Bytes`
+
+                while (i < length - 2) {
+                    if (data[i] === 0 && data[i + 1] === 0 && data[i + 2] === 0x03) {
+                        emulationPreventionBytesPositions.push(i + 2);
+                        i += 2;
+                    } else {
+                        i++;
+                    }
+                } // If no Emulation Prevention Bytes were found just return the original
+                // array
+
+                if (emulationPreventionBytesPositions.length === 0) {
+                    return data;
+                } // Create a new array to hold the NAL unit data
+
+                newLength = length - emulationPreventionBytesPositions.length;
+                newData = new Uint8Array(newLength);
+                var sourceIndex = 0;
+                for (i = 0; i < newLength; sourceIndex++, i++) {
+                    if (sourceIndex === emulationPreventionBytesPositions[0]) {
+                        // Skip this byte
+                        sourceIndex++; // Remove this position index
+
+                        emulationPreventionBytesPositions.shift();
+                    }
+                    newData[i] = data[sourceIndex];
+                }
+                return newData;
+            };
+            /**
+             * Read a sequence parameter set and return some interesting video
+             * properties. A sequence parameter set is the H264 metadata that
+             * describes the properties of upcoming video frames.
+             * @param data {Uint8Array} the bytes of a sequence parameter set
+             * @return {object} an object with configuration parsed from the
+             * sequence parameter set, including the dimensions of the
+             * associated video frames.
+             */
+
+            readSequenceParameterSet = function (data) {
+                var frameCropLeftOffset = 0,
+                    frameCropRightOffset = 0,
+                    frameCropTopOffset = 0,
+                    frameCropBottomOffset = 0,
+                    expGolombDecoder,
+                    profileIdc,
+                    levelIdc,
+                    profileCompatibility,
+                    chromaFormatIdc,
+                    picOrderCntType,
+                    numRefFramesInPicOrderCntCycle,
+                    picWidthInMbsMinus1,
+                    picHeightInMapUnitsMinus1,
+                    frameMbsOnlyFlag,
+                    scalingListCount,
+                    sarRatio = [1, 1],
+                    aspectRatioIdc,
+                    i;
+                expGolombDecoder = new ExpGolomb(data);
+                profileIdc = expGolombDecoder.readUnsignedByte(); // profile_idc
+
+                profileCompatibility = expGolombDecoder.readUnsignedByte(); // constraint_set[0-5]_flag
+
+                levelIdc = expGolombDecoder.readUnsignedByte(); // level_idc u(8)
+
+                expGolombDecoder.skipUnsignedExpGolomb(); // seq_parameter_set_id
+                // some profiles have more optional data we don't need
+
+                if (PROFILES_WITH_OPTIONAL_SPS_DATA[profileIdc]) {
+                    chromaFormatIdc = expGolombDecoder.readUnsignedExpGolomb();
+                    if (chromaFormatIdc === 3) {
+                        expGolombDecoder.skipBits(1); // separate_colour_plane_flag
+                    }
+
+                    expGolombDecoder.skipUnsignedExpGolomb(); // bit_depth_luma_minus8
+
+                    expGolombDecoder.skipUnsignedExpGolomb(); // bit_depth_chroma_minus8
+
+                    expGolombDecoder.skipBits(1); // qpprime_y_zero_transform_bypass_flag
+
+                    if (expGolombDecoder.readBoolean()) {
+                        // seq_scaling_matrix_present_flag
+                        scalingListCount = chromaFormatIdc !== 3 ? 8 : 12;
+                        for (i = 0; i < scalingListCount; i++) {
+                            if (expGolombDecoder.readBoolean()) {
+                                // seq_scaling_list_present_flag[ i ]
+                                if (i < 6) {
+                                    skipScalingList(16, expGolombDecoder);
+                                } else {
+                                    skipScalingList(64, expGolombDecoder);
+                                }
+                            }
+                        }
+                    }
+                }
+                expGolombDecoder.skipUnsignedExpGolomb(); // log2_max_frame_num_minus4
+
+                picOrderCntType = expGolombDecoder.readUnsignedExpGolomb();
+                if (picOrderCntType === 0) {
+                    expGolombDecoder.readUnsignedExpGolomb(); // log2_max_pic_order_cnt_lsb_minus4
+                } else if (picOrderCntType === 1) {
+                    expGolombDecoder.skipBits(1); // delta_pic_order_always_zero_flag
+
+                    expGolombDecoder.skipExpGolomb(); // offset_for_non_ref_pic
+
+                    expGolombDecoder.skipExpGolomb(); // offset_for_top_to_bottom_field
+
+                    numRefFramesInPicOrderCntCycle = expGolombDecoder.readUnsignedExpGolomb();
+                    for (i = 0; i < numRefFramesInPicOrderCntCycle; i++) {
+                        expGolombDecoder.skipExpGolomb(); // offset_for_ref_frame[ i ]
+                    }
+                }
+
+                expGolombDecoder.skipUnsignedExpGolomb(); // max_num_ref_frames
+
+                expGolombDecoder.skipBits(1); // gaps_in_frame_num_value_allowed_flag
+
+                picWidthInMbsMinus1 = expGolombDecoder.readUnsignedExpGolomb();
+                picHeightInMapUnitsMinus1 = expGolombDecoder.readUnsignedExpGolomb();
+                frameMbsOnlyFlag = expGolombDecoder.readBits(1);
+                if (frameMbsOnlyFlag === 0) {
+                    expGolombDecoder.skipBits(1); // mb_adaptive_frame_field_flag
+                }
+
+                expGolombDecoder.skipBits(1); // direct_8x8_inference_flag
+
+                if (expGolombDecoder.readBoolean()) {
+                    // frame_cropping_flag
+                    frameCropLeftOffset = expGolombDecoder.readUnsignedExpGolomb();
+                    frameCropRightOffset = expGolombDecoder.readUnsignedExpGolomb();
+                    frameCropTopOffset = expGolombDecoder.readUnsignedExpGolomb();
+                    frameCropBottomOffset = expGolombDecoder.readUnsignedExpGolomb();
+                }
+                if (expGolombDecoder.readBoolean()) {
+                    // vui_parameters_present_flag
+                    if (expGolombDecoder.readBoolean()) {
+                        // aspect_ratio_info_present_flag
+                        aspectRatioIdc = expGolombDecoder.readUnsignedByte();
+                        switch (aspectRatioIdc) {
+                            case 1:
+                                sarRatio = [1, 1];
+                                break;
+                            case 2:
+                                sarRatio = [12, 11];
+                                break;
+                            case 3:
+                                sarRatio = [10, 11];
+                                break;
+                            case 4:
+                                sarRatio = [16, 11];
+                                break;
+                            case 5:
+                                sarRatio = [40, 33];
+                                break;
+                            case 6:
+                                sarRatio = [24, 11];
+                                break;
+                            case 7:
+                                sarRatio = [20, 11];
+                                break;
+                            case 8:
+                                sarRatio = [32, 11];
+                                break;
+                            case 9:
+                                sarRatio = [80, 33];
+                                break;
+                            case 10:
+                                sarRatio = [18, 11];
+                                break;
+                            case 11:
+                                sarRatio = [15, 11];
+                                break;
+                            case 12:
+                                sarRatio = [64, 33];
+                                break;
+                            case 13:
+                                sarRatio = [160, 99];
+                                break;
+                            case 14:
+                                sarRatio = [4, 3];
+                                break;
+                            case 15:
+                                sarRatio = [3, 2];
+                                break;
+                            case 16:
+                                sarRatio = [2, 1];
+                                break;
+                            case 255:
+                            {
+                                sarRatio = [expGolombDecoder.readUnsignedByte() << 8 | expGolombDecoder.readUnsignedByte(), expGolombDecoder.readUnsignedByte() << 8 | expGolombDecoder.readUnsignedByte()];
+                                break;
+                            }
+                        }
+                        if (sarRatio) {
+                            sarRatio[0] / sarRatio[1];
+                        }
+                    }
+                }
+                return {
+                    profileIdc: profileIdc,
+                    levelIdc: levelIdc,
+                    profileCompatibility: profileCompatibility,
+                    width: (picWidthInMbsMinus1 + 1) * 16 - frameCropLeftOffset * 2 - frameCropRightOffset * 2,
+                    height: (2 - frameMbsOnlyFlag) * (picHeightInMapUnitsMinus1 + 1) * 16 - frameCropTopOffset * 2 - frameCropBottomOffset * 2,
+                    // sar is sample aspect ratio
+                    sarRatio: sarRatio
+                };
+            };
+        };
+        H264Stream$1.prototype = new Stream$2();
+        var h264 = {
+            H264Stream: H264Stream$1,
+            NalByteStream: NalByteStream
+        };
+        /**
+         * mux.js
+         *
+         * Copyright (c) Brightcove
+         * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE
+         *
+         * Utilities to detect basic properties and metadata about Aac data.
+         */
+
+        var ADTS_SAMPLING_FREQUENCIES = [96000, 88200, 64000, 48000, 44100, 32000, 24000, 22050, 16000, 12000, 11025, 8000, 7350];
+        var parseId3TagSize = function (header, byteIndex) {
+            var returnSize = header[byteIndex + 6] << 21 | header[byteIndex + 7] << 14 | header[byteIndex + 8] << 7 | header[byteIndex + 9],
+                flags = header[byteIndex + 5],
+                footerPresent = (flags & 16) >> 4; // if we get a negative returnSize clamp it to 0
+
+            returnSize = returnSize >= 0 ? returnSize : 0;
+            if (footerPresent) {
+                return returnSize + 20;
+            }
+            return returnSize + 10;
+        };
+        var getId3Offset = function (data, offset) {
+            if (data.length - offset < 10 || data[offset] !== 'I'.charCodeAt(0) || data[offset + 1] !== 'D'.charCodeAt(0) || data[offset + 2] !== '3'.charCodeAt(0)) {
+                return offset;
+            }
+            offset += parseId3TagSize(data, offset);
+            return getId3Offset(data, offset);
+        }; // TODO: use vhs-utils
+
+        var isLikelyAacData$1 = function (data) {
+            var offset = getId3Offset(data, 0);
+            return data.length >= offset + 2 && (data[offset] & 0xFF) === 0xFF && (data[offset + 1] & 0xF0) === 0xF0 &&
+                // verify that the 2 layer bits are 0, aka this
+                // is not mp3 data but aac data.
+                (data[offset + 1] & 0x16) === 0x10;
+        };
+        var parseSyncSafeInteger = function (data) {
+            return data[0] << 21 | data[1] << 14 | data[2] << 7 | data[3];
+        }; // return a percent-encoded representation of the specified byte range
+        // @see http://en.wikipedia.org/wiki/Percent-encoding
+
+        var percentEncode = function (bytes, start, end) {
+            var i,
+                result = '';
+            for (i = start; i < end; i++) {
+                result += '%' + ('00' + bytes[i].toString(16)).slice(-2);
+            }
+            return result;
+        }; // return the string representation of the specified byte range,
+        // interpreted as ISO-8859-1.
+
+        var parseIso88591 = function (bytes, start, end) {
+            return unescape(percentEncode(bytes, start, end)); // jshint ignore:line
+        };
+
+        var parseAdtsSize = function (header, byteIndex) {
+            var lowThree = (header[byteIndex + 5] & 0xE0) >> 5,
+                middle = header[byteIndex + 4] << 3,
+                highTwo = header[byteIndex + 3] & 0x3 << 11;
+            return highTwo | middle | lowThree;
+        };
+        var parseType$4 = function (header, byteIndex) {
+            if (header[byteIndex] === 'I'.charCodeAt(0) && header[byteIndex + 1] === 'D'.charCodeAt(0) && header[byteIndex + 2] === '3'.charCodeAt(0)) {
+                return 'timed-metadata';
+            } else if (header[byteIndex] & 0xff === 0xff && (header[byteIndex + 1] & 0xf0) === 0xf0) {
+                return 'audio';
+            }
+            return null;
+        };
+        var parseSampleRate = function (packet) {
+            var i = 0;
+            while (i + 5 < packet.length) {
+                if (packet[i] !== 0xFF || (packet[i + 1] & 0xF6) !== 0xF0) {
+                    // If a valid header was not found,  jump one forward and attempt to
+                    // find a valid ADTS header starting at the next byte
+                    i++;
+                    continue;
+                }
+                return ADTS_SAMPLING_FREQUENCIES[(packet[i + 2] & 0x3c) >>> 2];
+            }
+            return null;
+        };
+        var parseAacTimestamp = function (packet) {
+            var frameStart, frameSize, frame, frameHeader; // find the start of the first frame and the end of the tag
+
+            frameStart = 10;
+            if (packet[5] & 0x40) {
+                // advance the frame start past the extended header
+                frameStart += 4; // header size field
+
+                frameStart += parseSyncSafeInteger(packet.subarray(10, 14));
+            } // parse one or more ID3 frames
+            // http://id3.org/id3v2.3.0#ID3v2_frame_overview
+
+            do {
+                // determine the number of bytes in this frame
+                frameSize = parseSyncSafeInteger(packet.subarray(frameStart + 4, frameStart + 8));
+                if (frameSize < 1) {
+                    return null;
+                }
+                frameHeader = String.fromCharCode(packet[frameStart], packet[frameStart + 1], packet[frameStart + 2], packet[frameStart + 3]);
+                if (frameHeader === 'PRIV') {
+                    frame = packet.subarray(frameStart + 10, frameStart + frameSize + 10);
+                    for (var i = 0; i < frame.byteLength; i++) {
+                        if (frame[i] === 0) {
+                            var owner = parseIso88591(frame, 0, i);
+                            if (owner === 'com.apple.streaming.transportStreamTimestamp') {
+                                var d = frame.subarray(i + 1);
+                                var size = (d[3] & 0x01) << 30 | d[4] << 22 | d[5] << 14 | d[6] << 6 | d[7] >>> 2;
+                                size *= 4;
+                                size += d[7] & 0x03;
+                                return size;
+                            }
+                            break;
+                        }
+                    }
+                }
+                frameStart += 10; // advance past the frame header
+
+                frameStart += frameSize; // advance past the frame body
+            } while (frameStart < packet.byteLength);
+            return null;
+        };
+        var utils = {
+            isLikelyAacData: isLikelyAacData$1,
+            parseId3TagSize: parseId3TagSize,
+            parseAdtsSize: parseAdtsSize,
+            parseType: parseType$4,
+            parseSampleRate: parseSampleRate,
+            parseAacTimestamp: parseAacTimestamp
+        };
+        /**
+         * mux.js
+         *
+         * Copyright (c) Brightcove
+         * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE
+         *
+         * A stream-based aac to mp4 converter. This utility can be used to
+         * deliver mp4s to a SourceBuffer on platforms that support native
+         * Media Source Extensions.
+         */
+
+        var Stream$1 = stream;
+        var aacUtils = utils; // Constants
+
+        var AacStream$1;
+        /**
+         * Splits an incoming stream of binary data into ADTS and ID3 Frames.
+         */
+
+        AacStream$1 = function () {
+            var everything = new Uint8Array(),
+                timeStamp = 0;
+            AacStream$1.prototype.init.call(this);
+            this.setTimestamp = function (timestamp) {
+                timeStamp = timestamp;
+            };
+            this.push = function (bytes) {
+                var frameSize = 0,
+                    byteIndex = 0,
+                    bytesLeft,
+                    chunk,
+                    packet,
+                    tempLength; // If there are bytes remaining from the last segment, prepend them to the
+                // bytes that were pushed in
+
+                if (everything.length) {
+                    tempLength = everything.length;
+                    everything = new Uint8Array(bytes.byteLength + tempLength);
+                    everything.set(everything.subarray(0, tempLength));
+                    everything.set(bytes, tempLength);
+                } else {
+                    everything = bytes;
+                }
+                while (everything.length - byteIndex >= 3) {
+                    if (everything[byteIndex] === 'I'.charCodeAt(0) && everything[byteIndex + 1] === 'D'.charCodeAt(0) && everything[byteIndex + 2] === '3'.charCodeAt(0)) {
+                        // Exit early because we don't have enough to parse
+                        // the ID3 tag header
+                        if (everything.length - byteIndex < 10) {
+                            break;
+                        } // check framesize
+
+                        frameSize = aacUtils.parseId3TagSize(everything, byteIndex); // Exit early if we don't have enough in the buffer
+                        // to emit a full packet
+                        // Add to byteIndex to support multiple ID3 tags in sequence
+
+                        if (byteIndex + frameSize > everything.length) {
+                            break;
+                        }
+                        chunk = {
+                            type: 'timed-metadata',
+                            data: everything.subarray(byteIndex, byteIndex + frameSize)
+                        };
+                        this.trigger('data', chunk);
+                        byteIndex += frameSize;
+                        continue;
+                    } else if ((everything[byteIndex] & 0xff) === 0xff && (everything[byteIndex + 1] & 0xf0) === 0xf0) {
+                        // Exit early because we don't have enough to parse
+                        // the ADTS frame header
+                        if (everything.length - byteIndex < 7) {
+                            break;
+                        }
+                        frameSize = aacUtils.parseAdtsSize(everything, byteIndex); // Exit early if we don't have enough in the buffer
+                        // to emit a full packet
+
+                        if (byteIndex + frameSize > everything.length) {
+                            break;
+                        }
+                        packet = {
+                            type: 'audio',
+                            data: everything.subarray(byteIndex, byteIndex + frameSize),
+                            pts: timeStamp,
+                            dts: timeStamp
+                        };
+                        this.trigger('data', packet);
+                        byteIndex += frameSize;
+                        continue;
+                    }
+                    byteIndex++;
+                }
+                bytesLeft = everything.length - byteIndex;
+                if (bytesLeft > 0) {
+                    everything = everything.subarray(byteIndex);
+                } else {
+                    everything = new Uint8Array();
+                }
+            };
+            this.reset = function () {
+                everything = new Uint8Array();
+                this.trigger('reset');
+            };
+            this.endTimeline = function () {
+                everything = new Uint8Array();
+                this.trigger('endedtimeline');
+            };
+        };
+        AacStream$1.prototype = new Stream$1();
+        var aac = AacStream$1;
+        var AUDIO_PROPERTIES$1 = ['audioobjecttype', 'channelcount', 'samplerate', 'samplingfrequencyindex', 'samplesize'];
+        var audioProperties = AUDIO_PROPERTIES$1;
+        var VIDEO_PROPERTIES$1 = ['width', 'height', 'profileIdc', 'levelIdc', 'profileCompatibility', 'sarRatio'];
+        var videoProperties = VIDEO_PROPERTIES$1;
+        /**
+         * mux.js
+         *
+         * Copyright (c) Brightcove
+         * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE
+         *
+         * A stream-based mp2t to mp4 converter. This utility can be used to
+         * deliver mp4s to a SourceBuffer on platforms that support native
+         * Media Source Extensions.
+         */
+
+        var Stream = stream;
+        var mp4 = mp4Generator;
+        var frameUtils = frameUtils$1;
+        var audioFrameUtils = audioFrameUtils$1;
+        var trackDecodeInfo = trackDecodeInfo$1;
+        var m2ts = m2ts_1;
+        var clock = clock$2;
+        var AdtsStream = adts;
+        var H264Stream = h264.H264Stream;
+        var AacStream = aac;
+        var isLikelyAacData = utils.isLikelyAacData;
+        var ONE_SECOND_IN_TS$1 = clock$2.ONE_SECOND_IN_TS;
+        var AUDIO_PROPERTIES = audioProperties;
+        var VIDEO_PROPERTIES = videoProperties; // object types
+
+        var VideoSegmentStream, AudioSegmentStream, Transmuxer, CoalesceStream;
+        var retriggerForStream = function (key, event) {
+            event.stream = key;
+            this.trigger('log', event);
+        };
+        var addPipelineLogRetriggers = function (transmuxer, pipeline) {
+            var keys = Object.keys(pipeline);
+            for (var i = 0; i < keys.length; i++) {
+                var key = keys[i]; // skip non-stream keys and headOfPipeline
+                // which is just a duplicate
+
+                if (key === 'headOfPipeline' || !pipeline[key].on) {
+                    continue;
+                }
+                pipeline[key].on('log', retriggerForStream.bind(transmuxer, key));
+            }
+        };
+        /**
+         * Compare two arrays (even typed) for same-ness
+         */
+
+        var arrayEquals = function (a, b) {
+            var i;
+            if (a.length !== b.length) {
+                return false;
+            } // compare the value of each element in the array
+
+            for (i = 0; i < a.length; i++) {
+                if (a[i] !== b[i]) {
+                    return false;
+                }
+            }
+            return true;
+        };
+        var generateSegmentTimingInfo = function (baseMediaDecodeTime, startDts, startPts, endDts, endPts, prependedContentDuration) {
+            var ptsOffsetFromDts = startPts - startDts,
+                decodeDuration = endDts - startDts,
+                presentationDuration = endPts - startPts; // The PTS and DTS values are based on the actual stream times from the segment,
+            // however, the player time values will reflect a start from the baseMediaDecodeTime.
+            // In order to provide relevant values for the player times, base timing info on the
+            // baseMediaDecodeTime and the DTS and PTS durations of the segment.
+
+            return {
+                start: {
+                    dts: baseMediaDecodeTime,
+                    pts: baseMediaDecodeTime + ptsOffsetFromDts
+                },
+                end: {
+                    dts: baseMediaDecodeTime + decodeDuration,
+                    pts: baseMediaDecodeTime + presentationDuration
+                },
+                prependedContentDuration: prependedContentDuration,
+                baseMediaDecodeTime: baseMediaDecodeTime
+            };
+        };
+        /**
+         * Constructs a single-track, ISO BMFF media segment from AAC data
+         * events. The output of this stream can be fed to a SourceBuffer
+         * configured with a suitable initialization segment.
+         * @param track {object} track metadata configuration
+         * @param options {object} transmuxer options object
+         * @param options.keepOriginalTimestamps {boolean} If true, keep the timestamps
+         *        in the source; false to adjust the first segment to start at 0.
+         */
+
+        AudioSegmentStream = function (track, options) {
+            var adtsFrames = [],
+                sequenceNumber,
+                earliestAllowedDts = 0,
+                audioAppendStartTs = 0,
+                videoBaseMediaDecodeTime = Infinity;
+            options = options || {};
+            sequenceNumber = options.firstSequenceNumber || 0;
+            AudioSegmentStream.prototype.init.call(this);
+            this.push = function (data) {
+                trackDecodeInfo.collectDtsInfo(track, data);
+                if (track) {
+                    AUDIO_PROPERTIES.forEach(function (prop) {
+                        track[prop] = data[prop];
+                    });
+                } // buffer audio data until end() is called
+
+                adtsFrames.push(data);
+            };
+            this.setEarliestDts = function (earliestDts) {
+                earliestAllowedDts = earliestDts;
+            };
+            this.setVideoBaseMediaDecodeTime = function (baseMediaDecodeTime) {
+                videoBaseMediaDecodeTime = baseMediaDecodeTime;
+            };
+            this.setAudioAppendStart = function (timestamp) {
+                audioAppendStartTs = timestamp;
+            };
+            this.flush = function () {
+                var frames, moof, mdat, boxes, frameDuration, segmentDuration, videoClockCyclesOfSilencePrefixed; // return early if no audio data has been observed
+
+                if (adtsFrames.length === 0) {
+                    this.trigger('done', 'AudioSegmentStream');
+                    return;
+                }
+                frames = audioFrameUtils.trimAdtsFramesByEarliestDts(adtsFrames, track, earliestAllowedDts);
+                track.baseMediaDecodeTime = trackDecodeInfo.calculateTrackBaseMediaDecodeTime(track, options.keepOriginalTimestamps); // amount of audio filled but the value is in video clock rather than audio clock
+
+                videoClockCyclesOfSilencePrefixed = audioFrameUtils.prefixWithSilence(track, frames, audioAppendStartTs, videoBaseMediaDecodeTime); // we have to build the index from byte locations to
+                // samples (that is, adts frames) in the audio data
+
+                track.samples = audioFrameUtils.generateSampleTable(frames); // concatenate the audio data to constuct the mdat
+
+                mdat = mp4.mdat(audioFrameUtils.concatenateFrameData(frames));
+                adtsFrames = [];
+                moof = mp4.moof(sequenceNumber, [track]);
+                boxes = new Uint8Array(moof.byteLength + mdat.byteLength); // bump the sequence number for next time
+
+                sequenceNumber++;
+                boxes.set(moof);
+                boxes.set(mdat, moof.byteLength);
+                trackDecodeInfo.clearDtsInfo(track);
+                frameDuration = Math.ceil(ONE_SECOND_IN_TS$1 * 1024 / track.samplerate); // TODO this check was added to maintain backwards compatibility (particularly with
+                // tests) on adding the timingInfo event. However, it seems unlikely that there's a
+                // valid use-case where an init segment/data should be triggered without associated
+                // frames. Leaving for now, but should be looked into.
+
+                if (frames.length) {
+                    segmentDuration = frames.length * frameDuration;
+                    this.trigger('segmentTimingInfo', generateSegmentTimingInfo(
+                        // The audio track's baseMediaDecodeTime is in audio clock cycles, but the
+                        // frame info is in video clock cycles. Convert to match expectation of
+                        // listeners (that all timestamps will be based on video clock cycles).
+                        clock.audioTsToVideoTs(track.baseMediaDecodeTime, track.samplerate),
+                        // frame times are already in video clock, as is segment duration
+                        frames[0].dts, frames[0].pts, frames[0].dts + segmentDuration, frames[0].pts + segmentDuration, videoClockCyclesOfSilencePrefixed || 0));
+                    this.trigger('timingInfo', {
+                        start: frames[0].pts,
+                        end: frames[0].pts + segmentDuration
+                    });
+                }
+                this.trigger('data', {
+                    track: track,
+                    boxes: boxes
+                });
+                this.trigger('done', 'AudioSegmentStream');
+            };
+            this.reset = function () {
+                trackDecodeInfo.clearDtsInfo(track);
+                adtsFrames = [];
+                this.trigger('reset');
+            };
+        };
+        AudioSegmentStream.prototype = new Stream();
+        /**
+         * Constructs a single-track, ISO BMFF media segment from H264 data
+         * events. The output of this stream can be fed to a SourceBuffer
+         * configured with a suitable initialization segment.
+         * @param track {object} track metadata configuration
+         * @param options {object} transmuxer options object
+         * @param options.alignGopsAtEnd {boolean} If true, start from the end of the
+         *        gopsToAlignWith list when attempting to align gop pts
+         * @param options.keepOriginalTimestamps {boolean} If true, keep the timestamps
+         *        in the source; false to adjust the first segment to start at 0.
+         */
+
+        VideoSegmentStream = function (track, options) {
+            var sequenceNumber,
+                nalUnits = [],
+                gopsToAlignWith = [],
+                config,
+                pps;
+            options = options || {};
+            sequenceNumber = options.firstSequenceNumber || 0;
+            VideoSegmentStream.prototype.init.call(this);
+            delete track.minPTS;
+            this.gopCache_ = [];
+            /**
+             * Constructs a ISO BMFF segment given H264 nalUnits
+             * @param {Object} nalUnit A data event representing a nalUnit
+             * @param {String} nalUnit.nalUnitType
+             * @param {Object} nalUnit.config Properties for a mp4 track
+             * @param {Uint8Array} nalUnit.data The nalUnit bytes
+             * @see lib/codecs/h264.js
+             **/
+
+            this.push = function (nalUnit) {
+                trackDecodeInfo.collectDtsInfo(track, nalUnit); // record the track config
+
+                if (nalUnit.nalUnitType === 'seq_parameter_set_rbsp' && !config) {
+                    config = nalUnit.config;
+                    track.sps = [nalUnit.data];
+                    VIDEO_PROPERTIES.forEach(function (prop) {
+                        track[prop] = config[prop];
+                    }, this);
+                }
+                if (nalUnit.nalUnitType === 'pic_parameter_set_rbsp' && !pps) {
+                    pps = nalUnit.data;
+                    track.pps = [nalUnit.data];
+                } // buffer video until flush() is called
+
+                nalUnits.push(nalUnit);
+            };
+            /**
+             * Pass constructed ISO BMFF track and boxes on to the
+             * next stream in the pipeline
+             **/
+
+            this.flush = function () {
+                var frames,
+                    gopForFusion,
+                    gops,
+                    moof,
+                    mdat,
+                    boxes,
+                    prependedContentDuration = 0,
+                    firstGop,
+                    lastGop; // Throw away nalUnits at the start of the byte stream until
+                // we find the first AUD
+
+                while (nalUnits.length) {
+                    if (nalUnits[0].nalUnitType === 'access_unit_delimiter_rbsp') {
+                        break;
+                    }
+                    nalUnits.shift();
+                } // Return early if no video data has been observed
+
+                if (nalUnits.length === 0) {
+                    this.resetStream_();
+                    this.trigger('done', 'VideoSegmentStream');
+                    return;
+                } // Organize the raw nal-units into arrays that represent
+                // higher-level constructs such as frames and gops
+                // (group-of-pictures)
+
+                frames = frameUtils.groupNalsIntoFrames(nalUnits);
+                gops = frameUtils.groupFramesIntoGops(frames); // If the first frame of this fragment is not a keyframe we have
+                // a problem since MSE (on Chrome) requires a leading keyframe.
+                //
+                // We have two approaches to repairing this situation:
+                // 1) GOP-FUSION:
+                //    This is where we keep track of the GOPS (group-of-pictures)
+                //    from previous fragments and attempt to find one that we can
+                //    prepend to the current fragment in order to create a valid
+                //    fragment.
+                // 2) KEYFRAME-PULLING:
+                //    Here we search for the first keyframe in the fragment and
+                //    throw away all the frames between the start of the fragment
+                //    and that keyframe. We then extend the duration and pull the
+                //    PTS of the keyframe forward so that it covers the time range
+                //    of the frames that were disposed of.
+                //
+                // #1 is far prefereable over #2 which can cause "stuttering" but
+                // requires more things to be just right.
+
+                if (!gops[0][0].keyFrame) {
+                    // Search for a gop for fusion from our gopCache
+                    gopForFusion = this.getGopForFusion_(nalUnits[0], track);
+                    if (gopForFusion) {
+                        // in order to provide more accurate timing information about the segment, save
+                        // the number of seconds prepended to the original segment due to GOP fusion
+                        prependedContentDuration = gopForFusion.duration;
+                        gops.unshift(gopForFusion); // Adjust Gops' metadata to account for the inclusion of the
+                        // new gop at the beginning
+
+                        gops.byteLength += gopForFusion.byteLength;
+                        gops.nalCount += gopForFusion.nalCount;
+                        gops.pts = gopForFusion.pts;
+                        gops.dts = gopForFusion.dts;
+                        gops.duration += gopForFusion.duration;
+                    } else {
+                        // If we didn't find a candidate gop fall back to keyframe-pulling
+                        gops = frameUtils.extendFirstKeyFrame(gops);
+                    }
+                } // Trim gops to align with gopsToAlignWith
+
+                if (gopsToAlignWith.length) {
+                    var alignedGops;
+                    if (options.alignGopsAtEnd) {
+                        alignedGops = this.alignGopsAtEnd_(gops);
+                    } else {
+                        alignedGops = this.alignGopsAtStart_(gops);
+                    }
+                    if (!alignedGops) {
+                        // save all the nals in the last GOP into the gop cache
+                        this.gopCache_.unshift({
+                            gop: gops.pop(),
+                            pps: track.pps,
+                            sps: track.sps
+                        }); // Keep a maximum of 6 GOPs in the cache
+
+                        this.gopCache_.length = Math.min(6, this.gopCache_.length); // Clear nalUnits
+
+                        nalUnits = []; // return early no gops can be aligned with desired gopsToAlignWith
+
+                        this.resetStream_();
+                        this.trigger('done', 'VideoSegmentStream');
+                        return;
+                    } // Some gops were trimmed. clear dts info so minSegmentDts and pts are correct
+                    // when recalculated before sending off to CoalesceStream
+
+                    trackDecodeInfo.clearDtsInfo(track);
+                    gops = alignedGops;
+                }
+                trackDecodeInfo.collectDtsInfo(track, gops); // First, we have to build the index from byte locations to
+                // samples (that is, frames) in the video data
+
+                track.samples = frameUtils.generateSampleTable(gops); // Concatenate the video data and construct the mdat
+
+                mdat = mp4.mdat(frameUtils.concatenateNalData(gops));
+                track.baseMediaDecodeTime = trackDecodeInfo.calculateTrackBaseMediaDecodeTime(track, options.keepOriginalTimestamps);
+                this.trigger('processedGopsInfo', gops.map(function (gop) {
+                    return {
+                        pts: gop.pts,
+                        dts: gop.dts,
+                        byteLength: gop.byteLength
+                    };
+                }));
+                firstGop = gops[0];
+                lastGop = gops[gops.length - 1];
+                this.trigger('segmentTimingInfo', generateSegmentTimingInfo(track.baseMediaDecodeTime, firstGop.dts, firstGop.pts, lastGop.dts + lastGop.duration, lastGop.pts + lastGop.duration, prependedContentDuration));
+                this.trigger('timingInfo', {
+                    start: gops[0].pts,
+                    end: gops[gops.length - 1].pts + gops[gops.length - 1].duration
+                }); // save all the nals in the last GOP into the gop cache
+
+                this.gopCache_.unshift({
+                    gop: gops.pop(),
+                    pps: track.pps,
+                    sps: track.sps
+                }); // Keep a maximum of 6 GOPs in the cache
+
+                this.gopCache_.length = Math.min(6, this.gopCache_.length); // Clear nalUnits
+
+                nalUnits = [];
+                this.trigger('baseMediaDecodeTime', track.baseMediaDecodeTime);
+                this.trigger('timelineStartInfo', track.timelineStartInfo);
+                moof = mp4.moof(sequenceNumber, [track]); // it would be great to allocate this array up front instead of
+                // throwing away hundreds of media segment fragments
+
+                boxes = new Uint8Array(moof.byteLength + mdat.byteLength); // Bump the sequence number for next time
+
+                sequenceNumber++;
+                boxes.set(moof);
+                boxes.set(mdat, moof.byteLength);
+                this.trigger('data', {
+                    track: track,
+                    boxes: boxes
+                });
+                this.resetStream_(); // Continue with the flush process now
+
+                this.trigger('done', 'VideoSegmentStream');
+            };
+            this.reset = function () {
+                this.resetStream_();
+                nalUnits = [];
+                this.gopCache_.length = 0;
+                gopsToAlignWith.length = 0;
+                this.trigger('reset');
+            };
+            this.resetStream_ = function () {
+                trackDecodeInfo.clearDtsInfo(track); // reset config and pps because they may differ across segments
+                // for instance, when we are rendition switching
+
+                config = undefined;
+                pps = undefined;
+            }; // Search for a candidate Gop for gop-fusion from the gop cache and
+            // return it or return null if no good candidate was found
+
+            this.getGopForFusion_ = function (nalUnit) {
+                var halfSecond = 45000,
+                    // Half-a-second in a 90khz clock
+                    allowableOverlap = 10000,
+                    // About 3 frames @ 30fps
+                    nearestDistance = Infinity,
+                    dtsDistance,
+                    nearestGopObj,
+                    currentGop,
+                    currentGopObj,
+                    i; // Search for the GOP nearest to the beginning of this nal unit
+
+                for (i = 0; i < this.gopCache_.length; i++) {
+                    currentGopObj = this.gopCache_[i];
+                    currentGop = currentGopObj.gop; // Reject Gops with different SPS or PPS
+
+                    if (!(track.pps && arrayEquals(track.pps[0], currentGopObj.pps[0])) || !(track.sps && arrayEquals(track.sps[0], currentGopObj.sps[0]))) {
+                        continue;
+                    } // Reject Gops that would require a negative baseMediaDecodeTime
+
+                    if (currentGop.dts < track.timelineStartInfo.dts) {
+                        continue;
+                    } // The distance between the end of the gop and the start of the nalUnit
+
+                    dtsDistance = nalUnit.dts - currentGop.dts - currentGop.duration; // Only consider GOPS that start before the nal unit and end within
+                    // a half-second of the nal unit
+
+                    if (dtsDistance >= -allowableOverlap && dtsDistance <= halfSecond) {
+                        // Always use the closest GOP we found if there is more than
+                        // one candidate
+                        if (!nearestGopObj || nearestDistance > dtsDistance) {
+                            nearestGopObj = currentGopObj;
+                            nearestDistance = dtsDistance;
+                        }
+                    }
+                }
+                if (nearestGopObj) {
+                    return nearestGopObj.gop;
+                }
+                return null;
+            }; // trim gop list to the first gop found that has a matching pts with a gop in the list
+            // of gopsToAlignWith starting from the START of the list
+
+            this.alignGopsAtStart_ = function (gops) {
+                var alignIndex, gopIndex, align, gop, byteLength, nalCount, duration, alignedGops;
+                byteLength = gops.byteLength;
+                nalCount = gops.nalCount;
+                duration = gops.duration;
+                alignIndex = gopIndex = 0;
+                while (alignIndex < gopsToAlignWith.length && gopIndex < gops.length) {
+                    align = gopsToAlignWith[alignIndex];
+                    gop = gops[gopIndex];
+                    if (align.pts === gop.pts) {
+                        break;
+                    }
+                    if (gop.pts > align.pts) {
+                        // this current gop starts after the current gop we want to align on, so increment
+                        // align index
+                        alignIndex++;
+                        continue;
+                    } // current gop starts before the current gop we want to align on. so increment gop
+                    // index
+
+                    gopIndex++;
+                    byteLength -= gop.byteLength;
+                    nalCount -= gop.nalCount;
+                    duration -= gop.duration;
+                }
+                if (gopIndex === 0) {
+                    // no gops to trim
+                    return gops;
+                }
+                if (gopIndex === gops.length) {
+                    // all gops trimmed, skip appending all gops
+                    return null;
+                }
+                alignedGops = gops.slice(gopIndex);
+                alignedGops.byteLength = byteLength;
+                alignedGops.duration = duration;
+                alignedGops.nalCount = nalCount;
+                alignedGops.pts = alignedGops[0].pts;
+                alignedGops.dts = alignedGops[0].dts;
+                return alignedGops;
+            }; // trim gop list to the first gop found that has a matching pts with a gop in the list
+            // of gopsToAlignWith starting from the END of the list
+
+            this.alignGopsAtEnd_ = function (gops) {
+                var alignIndex, gopIndex, align, gop, alignEndIndex, matchFound;
+                alignIndex = gopsToAlignWith.length - 1;
+                gopIndex = gops.length - 1;
+                alignEndIndex = null;
+                matchFound = false;
+                while (alignIndex >= 0 && gopIndex >= 0) {
+                    align = gopsToAlignWith[alignIndex];
+                    gop = gops[gopIndex];
+                    if (align.pts === gop.pts) {
+                        matchFound = true;
+                        break;
+                    }
+                    if (align.pts > gop.pts) {
+                        alignIndex--;
+                        continue;
+                    }
+                    if (alignIndex === gopsToAlignWith.length - 1) {
+                        // gop.pts is greater than the last alignment candidate. If no match is found
+                        // by the end of this loop, we still want to append gops that come after this
+                        // point
+                        alignEndIndex = gopIndex;
+                    }
+                    gopIndex--;
+                }
+                if (!matchFound && alignEndIndex === null) {
+                    return null;
+                }
+                var trimIndex;
+                if (matchFound) {
+                    trimIndex = gopIndex;
+                } else {
+                    trimIndex = alignEndIndex;
+                }
+                if (trimIndex === 0) {
+                    return gops;
+                }
+                var alignedGops = gops.slice(trimIndex);
+                var metadata = alignedGops.reduce(function (total, gop) {
+                    total.byteLength += gop.byteLength;
+                    total.duration += gop.duration;
+                    total.nalCount += gop.nalCount;
+                    return total;
+                }, {
+                    byteLength: 0,
+                    duration: 0,
+                    nalCount: 0
+                });
+                alignedGops.byteLength = metadata.byteLength;
+                alignedGops.duration = metadata.duration;
+                alignedGops.nalCount = metadata.nalCount;
+                alignedGops.pts = alignedGops[0].pts;
+                alignedGops.dts = alignedGops[0].dts;
+                return alignedGops;
+            };
+            this.alignGopsWith = function (newGopsToAlignWith) {
+                gopsToAlignWith = newGopsToAlignWith;
+            };
+        };
+        VideoSegmentStream.prototype = new Stream();
+        /**
+         * A Stream that can combine multiple streams (ie. audio & video)
+         * into a single output segment for MSE. Also supports audio-only
+         * and video-only streams.
+         * @param options {object} transmuxer options object
+         * @param options.keepOriginalTimestamps {boolean} If true, keep the timestamps
+         *        in the source; false to adjust the first segment to start at media timeline start.
+         */
+
+        CoalesceStream = function (options, metadataStream) {
+            // Number of Tracks per output segment
+            // If greater than 1, we combine multiple
+            // tracks into a single segment
+            this.numberOfTracks = 0;
+            this.metadataStream = metadataStream;
+            options = options || {};
+            if (typeof options.remux !== 'undefined') {
+                this.remuxTracks = !!options.remux;
+            } else {
+                this.remuxTracks = true;
+            }
+            if (typeof options.keepOriginalTimestamps === 'boolean') {
+                this.keepOriginalTimestamps = options.keepOriginalTimestamps;
+            } else {
+                this.keepOriginalTimestamps = false;
+            }
+            this.pendingTracks = [];
+            this.videoTrack = null;
+            this.pendingBoxes = [];
+            this.pendingCaptions = [];
+            this.pendingMetadata = [];
+            this.pendingBytes = 0;
+            this.emittedTracks = 0;
+            CoalesceStream.prototype.init.call(this); // Take output from multiple
+
+            this.push = function (output) {
+                // buffer incoming captions until the associated video segment
+                // finishes
+                if (output.text) {
+                    return this.pendingCaptions.push(output);
+                } // buffer incoming id3 tags until the final flush
+
+                if (output.frames) {
+                    return this.pendingMetadata.push(output);
+                } // Add this track to the list of pending tracks and store
+                // important information required for the construction of
+                // the final segment
+
+                this.pendingTracks.push(output.track);
+                this.pendingBytes += output.boxes.byteLength; // TODO: is there an issue for this against chrome?
+                // We unshift audio and push video because
+                // as of Chrome 75 when switching from
+                // one init segment to another if the video
+                // mdat does not appear after the audio mdat
+                // only audio will play for the duration of our transmux.
+
+                if (output.track.type === 'video') {
+                    this.videoTrack = output.track;
+                    this.pendingBoxes.push(output.boxes);
+                }
+                if (output.track.type === 'audio') {
+                    this.audioTrack = output.track;
+                    this.pendingBoxes.unshift(output.boxes);
+                }
+            };
+        };
+        CoalesceStream.prototype = new Stream();
+        CoalesceStream.prototype.flush = function (flushSource) {
+            var offset = 0,
+                event = {
+                    captions: [],
+                    captionStreams: {},
+                    metadata: [],
+                    info: {}
+                },
+                caption,
+                id3,
+                initSegment,
+                timelineStartPts = 0,
+                i;
+            if (this.pendingTracks.length < this.numberOfTracks) {
+                if (flushSource !== 'VideoSegmentStream' && flushSource !== 'AudioSegmentStream') {
+                    // Return because we haven't received a flush from a data-generating
+                    // portion of the segment (meaning that we have only recieved meta-data
+                    // or captions.)
+                    return;
+                } else if (this.remuxTracks) {
+                    // Return until we have enough tracks from the pipeline to remux (if we
+                    // are remuxing audio and video into a single MP4)
+                    return;
+                } else if (this.pendingTracks.length === 0) {
+                    // In the case where we receive a flush without any data having been
+                    // received we consider it an emitted track for the purposes of coalescing
+                    // `done` events.
+                    // We do this for the case where there is an audio and video track in the
+                    // segment but no audio data. (seen in several playlists with alternate
+                    // audio tracks and no audio present in the main TS segments.)
+                    this.emittedTracks++;
+                    if (this.emittedTracks >= this.numberOfTracks) {
+                        this.trigger('done');
+                        this.emittedTracks = 0;
+                    }
+                    return;
+                }
+            }
+            if (this.videoTrack) {
+                timelineStartPts = this.videoTrack.timelineStartInfo.pts;
+                VIDEO_PROPERTIES.forEach(function (prop) {
+                    event.info[prop] = this.videoTrack[prop];
+                }, this);
+            } else if (this.audioTrack) {
+                timelineStartPts = this.audioTrack.timelineStartInfo.pts;
+                AUDIO_PROPERTIES.forEach(function (prop) {
+                    event.info[prop] = this.audioTrack[prop];
+                }, this);
+            }
+            if (this.videoTrack || this.audioTrack) {
+                if (this.pendingTracks.length === 1) {
+                    event.type = this.pendingTracks[0].type;
+                } else {
+                    event.type = 'combined';
+                }
+                this.emittedTracks += this.pendingTracks.length;
+                initSegment = mp4.initSegment(this.pendingTracks); // Create a new typed array to hold the init segment
+
+                event.initSegment = new Uint8Array(initSegment.byteLength); // Create an init segment containing a moov
+                // and track definitions
+
+                event.initSegment.set(initSegment); // Create a new typed array to hold the moof+mdats
+
+                event.data = new Uint8Array(this.pendingBytes); // Append each moof+mdat (one per track) together
+
+                for (i = 0; i < this.pendingBoxes.length; i++) {
+                    event.data.set(this.pendingBoxes[i], offset);
+                    offset += this.pendingBoxes[i].byteLength;
+                } // Translate caption PTS times into second offsets to match the
+                // video timeline for the segment, and add track info
+
+                for (i = 0; i < this.pendingCaptions.length; i++) {
+                    caption = this.pendingCaptions[i];
+                    caption.startTime = clock.metadataTsToSeconds(caption.startPts, timelineStartPts, this.keepOriginalTimestamps);
+                    caption.endTime = clock.metadataTsToSeconds(caption.endPts, timelineStartPts, this.keepOriginalTimestamps);
+                    event.captionStreams[caption.stream] = true;
+                    event.captions.push(caption);
+                } // Translate ID3 frame PTS times into second offsets to match the
+                // video timeline for the segment
+
+                for (i = 0; i < this.pendingMetadata.length; i++) {
+                    id3 = this.pendingMetadata[i];
+                    id3.cueTime = clock.metadataTsToSeconds(id3.pts, timelineStartPts, this.keepOriginalTimestamps);
+                    event.metadata.push(id3);
+                } // We add this to every single emitted segment even though we only need
+                // it for the first
+
+                event.metadata.dispatchType = this.metadataStream.dispatchType; // Reset stream state
+
+                this.pendingTracks.length = 0;
+                this.videoTrack = null;
+                this.pendingBoxes.length = 0;
+                this.pendingCaptions.length = 0;
+                this.pendingBytes = 0;
+                this.pendingMetadata.length = 0; // Emit the built segment
+                // We include captions and ID3 tags for backwards compatibility,
+                // ideally we should send only video and audio in the data event
+
+                this.trigger('data', event); // Emit each caption to the outside world
+                // Ideally, this would happen immediately on parsing captions,
+                // but we need to ensure that video data is sent back first
+                // so that caption timing can be adjusted to match video timing
+
+                for (i = 0; i < event.captions.length; i++) {
+                    caption = event.captions[i];
+                    this.trigger('caption', caption);
+                } // Emit each id3 tag to the outside world
+                // Ideally, this would happen immediately on parsing the tag,
+                // but we need to ensure that video data is sent back first
+                // so that ID3 frame timing can be adjusted to match video timing
+
+                for (i = 0; i < event.metadata.length; i++) {
+                    id3 = event.metadata[i];
+                    this.trigger('id3Frame', id3);
+                }
+            } // Only emit `done` if all tracks have been flushed and emitted
+
+            if (this.emittedTracks >= this.numberOfTracks) {
+                this.trigger('done');
+                this.emittedTracks = 0;
+            }
+        };
+        CoalesceStream.prototype.setRemux = function (val) {
+            this.remuxTracks = val;
+        };
+        /**
+         * A Stream that expects MP2T binary data as input and produces
+         * corresponding media segments, suitable for use with Media Source
+         * Extension (MSE) implementations that support the ISO BMFF byte
+         * stream format, like Chrome.
+         */
+
+        Transmuxer = function (options) {
+            var self = this,
+                hasFlushed = true,
+                videoTrack,
+                audioTrack;
+            Transmuxer.prototype.init.call(this);
+            options = options || {};
+            this.baseMediaDecodeTime = options.baseMediaDecodeTime || 0;
+            this.transmuxPipeline_ = {};
+            this.setupAacPipeline = function () {
+                var pipeline = {};
+                this.transmuxPipeline_ = pipeline;
+                pipeline.type = 'aac';
+                pipeline.metadataStream = new m2ts.MetadataStream(); // set up the parsing pipeline
+
+                pipeline.aacStream = new AacStream();
+                pipeline.audioTimestampRolloverStream = new m2ts.TimestampRolloverStream('audio');
+                pipeline.timedMetadataTimestampRolloverStream = new m2ts.TimestampRolloverStream('timed-metadata');
+                pipeline.adtsStream = new AdtsStream();
+                pipeline.coalesceStream = new CoalesceStream(options, pipeline.metadataStream);
+                pipeline.headOfPipeline = pipeline.aacStream;
+                pipeline.aacStream.pipe(pipeline.audioTimestampRolloverStream).pipe(pipeline.adtsStream);
+                pipeline.aacStream.pipe(pipeline.timedMetadataTimestampRolloverStream).pipe(pipeline.metadataStream).pipe(pipeline.coalesceStream);
+                pipeline.metadataStream.on('timestamp', function (frame) {
+                    pipeline.aacStream.setTimestamp(frame.timeStamp);
+                });
+                pipeline.aacStream.on('data', function (data) {
+                    if (data.type !== 'timed-metadata' && data.type !== 'audio' || pipeline.audioSegmentStream) {
+                        return;
+                    }
+                    audioTrack = audioTrack || {
+                        timelineStartInfo: {
+                            baseMediaDecodeTime: self.baseMediaDecodeTime
+                        },
+                        codec: 'adts',
+                        type: 'audio'
+                    }; // hook up the audio segment stream to the first track with aac data
+
+                    pipeline.coalesceStream.numberOfTracks++;
+                    pipeline.audioSegmentStream = new AudioSegmentStream(audioTrack, options);
+                    pipeline.audioSegmentStream.on('log', self.getLogTrigger_('audioSegmentStream'));
+                    pipeline.audioSegmentStream.on('timingInfo', self.trigger.bind(self, 'audioTimingInfo')); // Set up the final part of the audio pipeline
+
+                    pipeline.adtsStream.pipe(pipeline.audioSegmentStream).pipe(pipeline.coalesceStream); // emit pmt info
+
+                    self.trigger('trackinfo', {
+                        hasAudio: !!audioTrack,
+                        hasVideo: !!videoTrack
+                    });
+                }); // Re-emit any data coming from the coalesce stream to the outside world
+
+                pipeline.coalesceStream.on('data', this.trigger.bind(this, 'data')); // Let the consumer know we have finished flushing the entire pipeline
+
+                pipeline.coalesceStream.on('done', this.trigger.bind(this, 'done'));
+                addPipelineLogRetriggers(this, pipeline);
+            };
+            this.setupTsPipeline = function () {
+                var pipeline = {};
+                this.transmuxPipeline_ = pipeline;
+                pipeline.type = 'ts';
+                pipeline.metadataStream = new m2ts.MetadataStream(); // set up the parsing pipeline
+
+                pipeline.packetStream = new m2ts.TransportPacketStream();
+                pipeline.parseStream = new m2ts.TransportParseStream();
+                pipeline.elementaryStream = new m2ts.ElementaryStream();
+                pipeline.timestampRolloverStream = new m2ts.TimestampRolloverStream();
+                pipeline.adtsStream = new AdtsStream();
+                pipeline.h264Stream = new H264Stream();
+                pipeline.captionStream = new m2ts.CaptionStream(options);
+                pipeline.coalesceStream = new CoalesceStream(options, pipeline.metadataStream);
+                pipeline.headOfPipeline = pipeline.packetStream; // disassemble MPEG2-TS packets into elementary streams
+
+                pipeline.packetStream.pipe(pipeline.parseStream).pipe(pipeline.elementaryStream).pipe(pipeline.timestampRolloverStream); // !!THIS ORDER IS IMPORTANT!!
+                // demux the streams
+
+                pipeline.timestampRolloverStream.pipe(pipeline.h264Stream);
+                pipeline.timestampRolloverStream.pipe(pipeline.adtsStream);
+                pipeline.timestampRolloverStream.pipe(pipeline.metadataStream).pipe(pipeline.coalesceStream); // Hook up CEA-608/708 caption stream
+
+                pipeline.h264Stream.pipe(pipeline.captionStream).pipe(pipeline.coalesceStream);
+                pipeline.elementaryStream.on('data', function (data) {
+                    var i;
+                    if (data.type === 'metadata') {
+                        i = data.tracks.length; // scan the tracks listed in the metadata
+
+                        while (i--) {
+                            if (!videoTrack && data.tracks[i].type === 'video') {
+                                videoTrack = data.tracks[i];
+                                videoTrack.timelineStartInfo.baseMediaDecodeTime = self.baseMediaDecodeTime;
+                            } else if (!audioTrack && data.tracks[i].type === 'audio') {
+                                audioTrack = data.tracks[i];
+                                audioTrack.timelineStartInfo.baseMediaDecodeTime = self.baseMediaDecodeTime;
+                            }
+                        } // hook up the video segment stream to the first track with h264 data
+
+                        if (videoTrack && !pipeline.videoSegmentStream) {
+                            pipeline.coalesceStream.numberOfTracks++;
+                            pipeline.videoSegmentStream = new VideoSegmentStream(videoTrack, options);
+                            pipeline.videoSegmentStream.on('log', self.getLogTrigger_('videoSegmentStream'));
+                            pipeline.videoSegmentStream.on('timelineStartInfo', function (timelineStartInfo) {
+                                // When video emits timelineStartInfo data after a flush, we forward that
+                                // info to the AudioSegmentStream, if it exists, because video timeline
+                                // data takes precedence.  Do not do this if keepOriginalTimestamps is set,
+                                // because this is a particularly subtle form of timestamp alteration.
+                                if (audioTrack && !options.keepOriginalTimestamps) {
+                                    audioTrack.timelineStartInfo = timelineStartInfo; // On the first segment we trim AAC frames that exist before the
+                                    // very earliest DTS we have seen in video because Chrome will
+                                    // interpret any video track with a baseMediaDecodeTime that is
+                                    // non-zero as a gap.
+
+                                    pipeline.audioSegmentStream.setEarliestDts(timelineStartInfo.dts - self.baseMediaDecodeTime);
+                                }
+                            });
+                            pipeline.videoSegmentStream.on('processedGopsInfo', self.trigger.bind(self, 'gopInfo'));
+                            pipeline.videoSegmentStream.on('segmentTimingInfo', self.trigger.bind(self, 'videoSegmentTimingInfo'));
+                            pipeline.videoSegmentStream.on('baseMediaDecodeTime', function (baseMediaDecodeTime) {
+                                if (audioTrack) {
+                                    pipeline.audioSegmentStream.setVideoBaseMediaDecodeTime(baseMediaDecodeTime);
+                                }
+                            });
+                            pipeline.videoSegmentStream.on('timingInfo', self.trigger.bind(self, 'videoTimingInfo')); // Set up the final part of the video pipeline
+
+                            pipeline.h264Stream.pipe(pipeline.videoSegmentStream).pipe(pipeline.coalesceStream);
+                        }
+                        if (audioTrack && !pipeline.audioSegmentStream) {
+                            // hook up the audio segment stream to the first track with aac data
+                            pipeline.coalesceStream.numberOfTracks++;
+                            pipeline.audioSegmentStream = new AudioSegmentStream(audioTrack, options);
+                            pipeline.audioSegmentStream.on('log', self.getLogTrigger_('audioSegmentStream'));
+                            pipeline.audioSegmentStream.on('timingInfo', self.trigger.bind(self, 'audioTimingInfo'));
+                            pipeline.audioSegmentStream.on('segmentTimingInfo', self.trigger.bind(self, 'audioSegmentTimingInfo')); // Set up the final part of the audio pipeline
+
+                            pipeline.adtsStream.pipe(pipeline.audioSegmentStream).pipe(pipeline.coalesceStream);
+                        } // emit pmt info
+
+                        self.trigger('trackinfo', {
+                            hasAudio: !!audioTrack,
+                            hasVideo: !!videoTrack
+                        });
+                    }
+                }); // Re-emit any data coming from the coalesce stream to the outside world
+
+                pipeline.coalesceStream.on('data', this.trigger.bind(this, 'data'));
+                pipeline.coalesceStream.on('id3Frame', function (id3Frame) {
+                    id3Frame.dispatchType = pipeline.metadataStream.dispatchType;
+                    self.trigger('id3Frame', id3Frame);
+                });
+                pipeline.coalesceStream.on('caption', this.trigger.bind(this, 'caption')); // Let the consumer know we have finished flushing the entire pipeline
+
+                pipeline.coalesceStream.on('done', this.trigger.bind(this, 'done'));
+                addPipelineLogRetriggers(this, pipeline);
+            }; // hook up the segment streams once track metadata is delivered
+
+            this.setBaseMediaDecodeTime = function (baseMediaDecodeTime) {
+                var pipeline = this.transmuxPipeline_;
+                if (!options.keepOriginalTimestamps) {
+                    this.baseMediaDecodeTime = baseMediaDecodeTime;
+                }
+                if (audioTrack) {
+                    audioTrack.timelineStartInfo.dts = undefined;
+                    audioTrack.timelineStartInfo.pts = undefined;
+                    trackDecodeInfo.clearDtsInfo(audioTrack);
+                    if (pipeline.audioTimestampRolloverStream) {
+                        pipeline.audioTimestampRolloverStream.discontinuity();
+                    }
+                }
+                if (videoTrack) {
+                    if (pipeline.videoSegmentStream) {
+                        pipeline.videoSegmentStream.gopCache_ = [];
+                    }
+                    videoTrack.timelineStartInfo.dts = undefined;
+                    videoTrack.timelineStartInfo.pts = undefined;
+                    trackDecodeInfo.clearDtsInfo(videoTrack);
+                    pipeline.captionStream.reset();
+                }
+                if (pipeline.timestampRolloverStream) {
+                    pipeline.timestampRolloverStream.discontinuity();
+                }
+            };
+            this.setAudioAppendStart = function (timestamp) {
+                if (audioTrack) {
+                    this.transmuxPipeline_.audioSegmentStream.setAudioAppendStart(timestamp);
+                }
+            };
+            this.setRemux = function (val) {
+                var pipeline = this.transmuxPipeline_;
+                options.remux = val;
+                if (pipeline && pipeline.coalesceStream) {
+                    pipeline.coalesceStream.setRemux(val);
+                }
+            };
+            this.alignGopsWith = function (gopsToAlignWith) {
+                if (videoTrack && this.transmuxPipeline_.videoSegmentStream) {
+                    this.transmuxPipeline_.videoSegmentStream.alignGopsWith(gopsToAlignWith);
+                }
+            };
+            this.getLogTrigger_ = function (key) {
+                var self = this;
+                return function (event) {
+                    event.stream = key;
+                    self.trigger('log', event);
+                };
+            }; // feed incoming data to the front of the parsing pipeline
+
+            this.push = function (data) {
+                if (hasFlushed) {
+                    var isAac = isLikelyAacData(data);
+                    if (isAac && this.transmuxPipeline_.type !== 'aac') {
+                        this.setupAacPipeline();
+                    } else if (!isAac && this.transmuxPipeline_.type !== 'ts') {
+                        this.setupTsPipeline();
+                    }
+                    hasFlushed = false;
+                }
+                this.transmuxPipeline_.headOfPipeline.push(data);
+            }; // flush any buffered data
+
+            this.flush = function () {
+                hasFlushed = true; // Start at the top of the pipeline and flush all pending work
+
+                this.transmuxPipeline_.headOfPipeline.flush();
+            };
+            this.endTimeline = function () {
+                this.transmuxPipeline_.headOfPipeline.endTimeline();
+            };
+            this.reset = function () {
+                if (this.transmuxPipeline_.headOfPipeline) {
+                    this.transmuxPipeline_.headOfPipeline.reset();
+                }
+            }; // Caption data has to be reset when seeking outside buffered range
+
+            this.resetCaptions = function () {
+                if (this.transmuxPipeline_.captionStream) {
+                    this.transmuxPipeline_.captionStream.reset();
+                }
+            };
+        };
+        Transmuxer.prototype = new Stream();
+        var transmuxer = {
+            Transmuxer: Transmuxer,
+            VideoSegmentStream: VideoSegmentStream,
+            AudioSegmentStream: AudioSegmentStream,
+            AUDIO_PROPERTIES: AUDIO_PROPERTIES,
+            VIDEO_PROPERTIES: VIDEO_PROPERTIES,
+            // exported for testing
+            generateSegmentTimingInfo: generateSegmentTimingInfo
+        };
+        /**
+         * mux.js
+         *
+         * Copyright (c) Brightcove
+         * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE
+         */
+
+        var toUnsigned$3 = function (value) {
+            return value >>> 0;
+        };
+        var toHexString$1 = function (value) {
+            return ('00' + value.toString(16)).slice(-2);
+        };
+        var bin = {
+            toUnsigned: toUnsigned$3,
+            toHexString: toHexString$1
+        };
+        var parseType$3 = function (buffer) {
+            var result = '';
+            result += String.fromCharCode(buffer[0]);
+            result += String.fromCharCode(buffer[1]);
+            result += String.fromCharCode(buffer[2]);
+            result += String.fromCharCode(buffer[3]);
+            return result;
+        };
+        var parseType_1 = parseType$3;
+        var toUnsigned$2 = bin.toUnsigned;
+        var parseType$2 = parseType_1;
+        var findBox$2 = function (data, path) {
+            var results = [],
+                i,
+                size,
+                type,
+                end,
+                subresults;
+            if (!path.length) {
+                // short-circuit the search for empty paths
+                return null;
+            }
+            for (i = 0; i < data.byteLength;) {
+                size = toUnsigned$2(data[i] << 24 | data[i + 1] << 16 | data[i + 2] << 8 | data[i + 3]);
+                type = parseType$2(data.subarray(i + 4, i + 8));
+                end = size > 1 ? i + size : data.byteLength;
+                if (type === path[0]) {
+                    if (path.length === 1) {
+                        // this is the end of the path and we've found the box we were
+                        // looking for
+                        results.push(data.subarray(i + 8, end));
+                    } else {
+                        // recursively search for the next box along the path
+                        subresults = findBox$2(data.subarray(i + 8, end), path.slice(1));
+                        if (subresults.length) {
+                            results = results.concat(subresults);
+                        }
+                    }
+                }
+                i = end;
+            } // we've finished searching all of data
+
+            return results;
+        };
+        var findBox_1 = findBox$2;
+        var toUnsigned$1 = bin.toUnsigned;
+        var getUint64$2 = numbers.getUint64;
+        var tfdt = function (data) {
+            var result = {
+                version: data[0],
+                flags: new Uint8Array(data.subarray(1, 4))
+            };
+            if (result.version === 1) {
+                result.baseMediaDecodeTime = getUint64$2(data.subarray(4));
+            } else {
+                result.baseMediaDecodeTime = toUnsigned$1(data[4] << 24 | data[5] << 16 | data[6] << 8 | data[7]);
+            }
+            return result;
+        };
+        var parseTfdt$2 = tfdt;
+        var parseSampleFlags$1 = function (flags) {
+            return {
+                isLeading: (flags[0] & 0x0c) >>> 2,
+                dependsOn: flags[0] & 0x03,
+                isDependedOn: (flags[1] & 0xc0) >>> 6,
+                hasRedundancy: (flags[1] & 0x30) >>> 4,
+                paddingValue: (flags[1] & 0x0e) >>> 1,
+                isNonSyncSample: flags[1] & 0x01,
+                degradationPriority: flags[2] << 8 | flags[3]
+            };
+        };
+        var parseSampleFlags_1 = parseSampleFlags$1;
+        var parseSampleFlags = parseSampleFlags_1;
+        var trun = function (data) {
+            var result = {
+                    version: data[0],
+                    flags: new Uint8Array(data.subarray(1, 4)),
+                    samples: []
+                },
+                view = new DataView(data.buffer, data.byteOffset, data.byteLength),
+                // Flag interpretation
+                dataOffsetPresent = result.flags[2] & 0x01,
+                // compare with 2nd byte of 0x1
+                firstSampleFlagsPresent = result.flags[2] & 0x04,
+                // compare with 2nd byte of 0x4
+                sampleDurationPresent = result.flags[1] & 0x01,
+                // compare with 2nd byte of 0x100
+                sampleSizePresent = result.flags[1] & 0x02,
+                // compare with 2nd byte of 0x200
+                sampleFlagsPresent = result.flags[1] & 0x04,
+                // compare with 2nd byte of 0x400
+                sampleCompositionTimeOffsetPresent = result.flags[1] & 0x08,
+                // compare with 2nd byte of 0x800
+                sampleCount = view.getUint32(4),
+                offset = 8,
+                sample;
+            if (dataOffsetPresent) {
+                // 32 bit signed integer
+                result.dataOffset = view.getInt32(offset);
+                offset += 4;
+            } // Overrides the flags for the first sample only. The order of
+            // optional values will be: duration, size, compositionTimeOffset
+
+            if (firstSampleFlagsPresent && sampleCount) {
+                sample = {
+                    flags: parseSampleFlags(data.subarray(offset, offset + 4))
+                };
+                offset += 4;
+                if (sampleDurationPresent) {
+                    sample.duration = view.getUint32(offset);
+                    offset += 4;
+                }
+                if (sampleSizePresent) {
+                    sample.size = view.getUint32(offset);
+                    offset += 4;
+                }
+                if (sampleCompositionTimeOffsetPresent) {
+                    if (result.version === 1) {
+                        sample.compositionTimeOffset = view.getInt32(offset);
+                    } else {
+                        sample.compositionTimeOffset = view.getUint32(offset);
+                    }
+                    offset += 4;
+                }
+                result.samples.push(sample);
+                sampleCount--;
+            }
+            while (sampleCount--) {
+                sample = {};
+                if (sampleDurationPresent) {
+                    sample.duration = view.getUint32(offset);
+                    offset += 4;
+                }
+                if (sampleSizePresent) {
+                    sample.size = view.getUint32(offset);
+                    offset += 4;
+                }
+                if (sampleFlagsPresent) {
+                    sample.flags = parseSampleFlags(data.subarray(offset, offset + 4));
+                    offset += 4;
+                }
+                if (sampleCompositionTimeOffsetPresent) {
+                    if (result.version === 1) {
+                        sample.compositionTimeOffset = view.getInt32(offset);
+                    } else {
+                        sample.compositionTimeOffset = view.getUint32(offset);
+                    }
+                    offset += 4;
+                }
+                result.samples.push(sample);
+            }
+            return result;
+        };
+        var parseTrun$2 = trun;
+        var tfhd = function (data) {
+            var view = new DataView(data.buffer, data.byteOffset, data.byteLength),
+                result = {
+                    version: data[0],
+                    flags: new Uint8Array(data.subarray(1, 4)),
+                    trackId: view.getUint32(4)
+                },
+                baseDataOffsetPresent = result.flags[2] & 0x01,
+                sampleDescriptionIndexPresent = result.flags[2] & 0x02,
+                defaultSampleDurationPresent = result.flags[2] & 0x08,
+                defaultSampleSizePresent = result.flags[2] & 0x10,
+                defaultSampleFlagsPresent = result.flags[2] & 0x20,
+                durationIsEmpty = result.flags[0] & 0x010000,
+                defaultBaseIsMoof = result.flags[0] & 0x020000,
+                i;
+            i = 8;
+            if (baseDataOffsetPresent) {
+                i += 4; // truncate top 4 bytes
+                // FIXME: should we read the full 64 bits?
+
+                result.baseDataOffset = view.getUint32(12);
+                i += 4;
+            }
+            if (sampleDescriptionIndexPresent) {
+                result.sampleDescriptionIndex = view.getUint32(i);
+                i += 4;
+            }
+            if (defaultSampleDurationPresent) {
+                result.defaultSampleDuration = view.getUint32(i);
+                i += 4;
+            }
+            if (defaultSampleSizePresent) {
+                result.defaultSampleSize = view.getUint32(i);
+                i += 4;
+            }
+            if (defaultSampleFlagsPresent) {
+                result.defaultSampleFlags = view.getUint32(i);
+            }
+            if (durationIsEmpty) {
+                result.durationIsEmpty = true;
+            }
+            if (!baseDataOffsetPresent && defaultBaseIsMoof) {
+                result.baseDataOffsetIsMoof = true;
+            }
+            return result;
+        };
+        var parseTfhd$2 = tfhd;
+        var win;
+        if (typeof window !== "undefined") {
+            win = window;
+        } else if (typeof commonjsGlobal !== "undefined") {
+            win = commonjsGlobal;
+        } else if (typeof self !== "undefined") {
+            win = self;
+        } else {
+            win = {};
         }
-      };
+        var window_1 = win;
+        /**
+         * mux.js
+         *
+         * Copyright (c) Brightcove
+         * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE
+         *
+         * Reads in-band CEA-708 captions out of FMP4 segments.
+         * @see https://en.wikipedia.org/wiki/CEA-708
+         */
 
-      this.clearSeekingAppendCheck_ = function () {
-        return setSeekingHandlers('off');
-      };
+        var discardEmulationPreventionBytes = captionPacketParser.discardEmulationPreventionBytes;
+        var CaptionStream = captionStream.CaptionStream;
+        var findBox$1 = findBox_1;
+        var parseTfdt$1 = parseTfdt$2;
+        var parseTrun$1 = parseTrun$2;
+        var parseTfhd$1 = parseTfhd$2;
+        var window$2 = window_1;
+        /**
+         * Maps an offset in the mdat to a sample based on the the size of the samples.
+         * Assumes that `parseSamples` has been called first.
+         *
+         * @param {Number} offset - The offset into the mdat
+         * @param {Object[]} samples - An array of samples, parsed using `parseSamples`
+         * @return {?Object} The matching sample, or null if no match was found.
+         *
+         * @see ISO-BMFF-12/2015, Section 8.8.8
+         **/
 
-      this.watchForBadSeeking_ = function () {
-        _this.clearSeekingAppendCheck_();
+        var mapToSample = function (offset, samples) {
+            var approximateOffset = offset;
+            for (var i = 0; i < samples.length; i++) {
+                var sample = samples[i];
+                if (approximateOffset < sample.size) {
+                    return sample;
+                }
+                approximateOffset -= sample.size;
+            }
+            return null;
+        };
+        /**
+         * Finds SEI nal units contained in a Media Data Box.
+         * Assumes that `parseSamples` has been called first.
+         *
+         * @param {Uint8Array} avcStream - The bytes of the mdat
+         * @param {Object[]} samples - The samples parsed out by `parseSamples`
+         * @param {Number} trackId - The trackId of this video track
+         * @return {Object[]} seiNals - the parsed SEI NALUs found.
+         *   The contents of the seiNal should match what is expected by
+         *   CaptionStream.push (nalUnitType, size, data, escapedRBSP, pts, dts)
+         *
+         * @see ISO-BMFF-12/2015, Section 8.1.1
+         * @see Rec. ITU-T H.264, 7.3.2.3.1
+         **/
 
-        setSeekingHandlers('on');
-      };
+        var findSeiNals = function (avcStream, samples, trackId) {
+            var avcView = new DataView(avcStream.buffer, avcStream.byteOffset, avcStream.byteLength),
+                result = {
+                    logs: [],
+                    seiNals: []
+                },
+                seiNal,
+                i,
+                length,
+                lastMatchedSample;
+            for (i = 0; i + 4 < avcStream.length; i += length) {
+                length = avcView.getUint32(i);
+                i += 4; // Bail if this doesn't appear to be an H264 stream
 
-      this.tech_.on('seeked', this.clearSeekingAppendCheck_);
-      this.tech_.on('seeking', this.watchForBadSeeking_);
-      this.tech_.on('waiting', waitingHandler);
-      this.tech_.on(timerCancelEvents, cancelTimerHandler);
-      this.tech_.on('canplay', canPlayHandler);
-      /*
+                if (length <= 0) {
+                    continue;
+                }
+                switch (avcStream[i] & 0x1F) {
+                    case 0x06:
+                        var data = avcStream.subarray(i + 1, i + 1 + length);
+                        var matchingSample = mapToSample(i, samples);
+                        seiNal = {
+                            nalUnitType: 'sei_rbsp',
+                            size: length,
+                            data: data,
+                            escapedRBSP: discardEmulationPreventionBytes(data),
+                            trackId: trackId
+                        };
+                        if (matchingSample) {
+                            seiNal.pts = matchingSample.pts;
+                            seiNal.dts = matchingSample.dts;
+                            lastMatchedSample = matchingSample;
+                        } else if (lastMatchedSample) {
+                            // If a matching sample cannot be found, use the last
+                            // sample's values as they should be as close as possible
+                            seiNal.pts = lastMatchedSample.pts;
+                            seiNal.dts = lastMatchedSample.dts;
+                        } else {
+                            result.logs.push({
+                                level: 'warn',
+                                message: 'We\'ve encountered a nal unit without data at ' + i + ' for trackId ' + trackId + '. See mux.js#223.'
+                            });
+                            break;
+                        }
+                        result.seiNals.push(seiNal);
+                        break;
+                }
+            }
+            return result;
+        };
+        /**
+         * Parses sample information out of Track Run Boxes and calculates
+         * the absolute presentation and decode timestamps of each sample.
+         *
+         * @param {Array<Uint8Array>} truns - The Trun Run boxes to be parsed
+         * @param {Number|BigInt} baseMediaDecodeTime - base media decode time from tfdt
+         @see ISO-BMFF-12/2015, Section 8.8.12
+         * @param {Object} tfhd - The parsed Track Fragment Header
+         *   @see inspect.parseTfhd
+         * @return {Object[]} the parsed samples
+         *
+         * @see ISO-BMFF-12/2015, Section 8.8.8
+         **/
+
+        var parseSamples = function (truns, baseMediaDecodeTime, tfhd) {
+            var currentDts = baseMediaDecodeTime;
+            var defaultSampleDuration = tfhd.defaultSampleDuration || 0;
+            var defaultSampleSize = tfhd.defaultSampleSize || 0;
+            var trackId = tfhd.trackId;
+            var allSamples = [];
+            truns.forEach(function (trun) {
+                // Note: We currently do not parse the sample table as well
+                // as the trun. It's possible some sources will require this.
+                // moov > trak > mdia > minf > stbl
+                var trackRun = parseTrun$1(trun);
+                var samples = trackRun.samples;
+                samples.forEach(function (sample) {
+                    if (sample.duration === undefined) {
+                        sample.duration = defaultSampleDuration;
+                    }
+                    if (sample.size === undefined) {
+                        sample.size = defaultSampleSize;
+                    }
+                    sample.trackId = trackId;
+                    sample.dts = currentDts;
+                    if (sample.compositionTimeOffset === undefined) {
+                        sample.compositionTimeOffset = 0;
+                    }
+                    if (typeof currentDts === 'bigint') {
+                        sample.pts = currentDts + window$2.BigInt(sample.compositionTimeOffset);
+                        currentDts += window$2.BigInt(sample.duration);
+                    } else {
+                        sample.pts = currentDts + sample.compositionTimeOffset;
+                        currentDts += sample.duration;
+                    }
+                });
+                allSamples = allSamples.concat(samples);
+            });
+            return allSamples;
+        };
+        /**
+         * Parses out caption nals from an FMP4 segment's video tracks.
+         *
+         * @param {Uint8Array} segment - The bytes of a single segment
+         * @param {Number} videoTrackId - The trackId of a video track in the segment
+         * @return {Object.<Number, Object[]>} A mapping of video trackId to
+         *   a list of seiNals found in that track
+         **/
+
+        var parseCaptionNals = function (segment, videoTrackId) {
+            // To get the samples
+            var trafs = findBox$1(segment, ['moof', 'traf']); // To get SEI NAL units
+
+            var mdats = findBox$1(segment, ['mdat']);
+            var captionNals = {};
+            var mdatTrafPairs = []; // Pair up each traf with a mdat as moofs and mdats are in pairs
+
+            mdats.forEach(function (mdat, index) {
+                var matchingTraf = trafs[index];
+                mdatTrafPairs.push({
+                    mdat: mdat,
+                    traf: matchingTraf
+                });
+            });
+            mdatTrafPairs.forEach(function (pair) {
+                var mdat = pair.mdat;
+                var traf = pair.traf;
+                var tfhd = findBox$1(traf, ['tfhd']); // Exactly 1 tfhd per traf
+
+                var headerInfo = parseTfhd$1(tfhd[0]);
+                var trackId = headerInfo.trackId;
+                var tfdt = findBox$1(traf, ['tfdt']); // Either 0 or 1 tfdt per traf
+
+                var baseMediaDecodeTime = tfdt.length > 0 ? parseTfdt$1(tfdt[0]).baseMediaDecodeTime : 0;
+                var truns = findBox$1(traf, ['trun']);
+                var samples;
+                var result; // Only parse video data for the chosen video track
+
+                if (videoTrackId === trackId && truns.length > 0) {
+                    samples = parseSamples(truns, baseMediaDecodeTime, headerInfo);
+                    result = findSeiNals(mdat, samples, trackId);
+                    if (!captionNals[trackId]) {
+                        captionNals[trackId] = {
+                            seiNals: [],
+                            logs: []
+                        };
+                    }
+                    captionNals[trackId].seiNals = captionNals[trackId].seiNals.concat(result.seiNals);
+                    captionNals[trackId].logs = captionNals[trackId].logs.concat(result.logs);
+                }
+            });
+            return captionNals;
+        };
+        /**
+         * Parses out inband captions from an MP4 container and returns
+         * caption objects that can be used by WebVTT and the TextTrack API.
+         * @see https://developer.mozilla.org/en-US/docs/Web/API/VTTCue
+         * @see https://developer.mozilla.org/en-US/docs/Web/API/TextTrack
+         * Assumes that `probe.getVideoTrackIds` and `probe.timescale` have been called first
+         *
+         * @param {Uint8Array} segment - The fmp4 segment containing embedded captions
+         * @param {Number} trackId - The id of the video track to parse
+         * @param {Number} timescale - The timescale for the video track from the init segment
+         *
+         * @return {?Object[]} parsedCaptions - A list of captions or null if no video tracks
+         * @return {Number} parsedCaptions[].startTime - The time to show the caption in seconds
+         * @return {Number} parsedCaptions[].endTime - The time to stop showing the caption in seconds
+         * @return {String} parsedCaptions[].text - The visible content of the caption
+         **/
+
+        var parseEmbeddedCaptions = function (segment, trackId, timescale) {
+            var captionNals; // the ISO-BMFF spec says that trackId can't be zero, but there's some broken content out there
+
+            if (trackId === null) {
+                return null;
+            }
+            captionNals = parseCaptionNals(segment, trackId);
+            var trackNals = captionNals[trackId] || {};
+            return {
+                seiNals: trackNals.seiNals,
+                logs: trackNals.logs,
+                timescale: timescale
+            };
+        };
+        /**
+         * Converts SEI NALUs into captions that can be used by video.js
+         **/
+
+        var CaptionParser = function () {
+            var isInitialized = false;
+            var captionStream; // Stores segments seen before trackId and timescale are set
+
+            var segmentCache; // Stores video track ID of the track being parsed
+
+            var trackId; // Stores the timescale of the track being parsed
+
+            var timescale; // Stores captions parsed so far
+
+            var parsedCaptions; // Stores whether we are receiving partial data or not
+
+            var parsingPartial;
+            /**
+             * A method to indicate whether a CaptionParser has been initalized
+             * @returns {Boolean}
+             **/
+
+            this.isInitialized = function () {
+                return isInitialized;
+            };
+            /**
+             * Initializes the underlying CaptionStream, SEI NAL parsing
+             * and management, and caption collection
+             **/
+
+            this.init = function (options) {
+                captionStream = new CaptionStream();
+                isInitialized = true;
+                parsingPartial = options ? options.isPartial : false; // Collect dispatched captions
+
+                captionStream.on('data', function (event) {
+                    // Convert to seconds in the source's timescale
+                    event.startTime = event.startPts / timescale;
+                    event.endTime = event.endPts / timescale;
+                    parsedCaptions.captions.push(event);
+                    parsedCaptions.captionStreams[event.stream] = true;
+                });
+                captionStream.on('log', function (log) {
+                    parsedCaptions.logs.push(log);
+                });
+            };
+            /**
+             * Determines if a new video track will be selected
+             * or if the timescale changed
+             * @return {Boolean}
+             **/
+
+            this.isNewInit = function (videoTrackIds, timescales) {
+                if (videoTrackIds && videoTrackIds.length === 0 || timescales && typeof timescales === 'object' && Object.keys(timescales).length === 0) {
+                    return false;
+                }
+                return trackId !== videoTrackIds[0] || timescale !== timescales[trackId];
+            };
+            /**
+             * Parses out SEI captions and interacts with underlying
+             * CaptionStream to return dispatched captions
+             *
+             * @param {Uint8Array} segment - The fmp4 segment containing embedded captions
+             * @param {Number[]} videoTrackIds - A list of video tracks found in the init segment
+             * @param {Object.<Number, Number>} timescales - The timescales found in the init segment
+             * @see parseEmbeddedCaptions
+             * @see m2ts/caption-stream.js
+             **/
+
+            this.parse = function (segment, videoTrackIds, timescales) {
+                var parsedData;
+                if (!this.isInitialized()) {
+                    return null; // This is not likely to be a video segment
+                } else if (!videoTrackIds || !timescales) {
+                    return null;
+                } else if (this.isNewInit(videoTrackIds, timescales)) {
+                    // Use the first video track only as there is no
+                    // mechanism to switch to other video tracks
+                    trackId = videoTrackIds[0];
+                    timescale = timescales[trackId]; // If an init segment has not been seen yet, hold onto segment
+                    // data until we have one.
+                    // the ISO-BMFF spec says that trackId can't be zero, but there's some broken content out there
+                } else if (trackId === null || !timescale) {
+                    segmentCache.push(segment);
+                    return null;
+                } // Now that a timescale and trackId is set, parse cached segments
+
+                while (segmentCache.length > 0) {
+                    var cachedSegment = segmentCache.shift();
+                    this.parse(cachedSegment, videoTrackIds, timescales);
+                }
+                parsedData = parseEmbeddedCaptions(segment, trackId, timescale);
+                if (parsedData && parsedData.logs) {
+                    parsedCaptions.logs = parsedCaptions.logs.concat(parsedData.logs);
+                }
+                if (parsedData === null || !parsedData.seiNals) {
+                    if (parsedCaptions.logs.length) {
+                        return {
+                            logs: parsedCaptions.logs,
+                            captions: [],
+                            captionStreams: []
+                        };
+                    }
+                    return null;
+                }
+                this.pushNals(parsedData.seiNals); // Force the parsed captions to be dispatched
+
+                this.flushStream();
+                return parsedCaptions;
+            };
+            /**
+             * Pushes SEI NALUs onto CaptionStream
+             * @param {Object[]} nals - A list of SEI nals parsed using `parseCaptionNals`
+             * Assumes that `parseCaptionNals` has been called first
+             * @see m2ts/caption-stream.js
+             **/
+
+            this.pushNals = function (nals) {
+                if (!this.isInitialized() || !nals || nals.length === 0) {
+                    return null;
+                }
+                nals.forEach(function (nal) {
+                    captionStream.push(nal);
+                });
+            };
+            /**
+             * Flushes underlying CaptionStream to dispatch processed, displayable captions
+             * @see m2ts/caption-stream.js
+             **/
+
+            this.flushStream = function () {
+                if (!this.isInitialized()) {
+                    return null;
+                }
+                if (!parsingPartial) {
+                    captionStream.flush();
+                } else {
+                    captionStream.partialFlush();
+                }
+            };
+            /**
+             * Reset caption buckets for new data
+             **/
+
+            this.clearParsedCaptions = function () {
+                parsedCaptions.captions = [];
+                parsedCaptions.captionStreams = {};
+                parsedCaptions.logs = [];
+            };
+            /**
+             * Resets underlying CaptionStream
+             * @see m2ts/caption-stream.js
+             **/
+
+            this.resetCaptionStream = function () {
+                if (!this.isInitialized()) {
+                    return null;
+                }
+                captionStream.reset();
+            };
+            /**
+             * Convenience method to clear all captions flushed from the
+             * CaptionStream and still being parsed
+             * @see m2ts/caption-stream.js
+             **/
+
+            this.clearAllCaptions = function () {
+                this.clearParsedCaptions();
+                this.resetCaptionStream();
+            };
+            /**
+             * Reset caption parser
+             **/
+
+            this.reset = function () {
+                segmentCache = [];
+                trackId = null;
+                timescale = null;
+                if (!parsedCaptions) {
+                    parsedCaptions = {
+                        captions: [],
+                        // CC1, CC2, CC3, CC4
+                        captionStreams: {},
+                        logs: []
+                    };
+                } else {
+                    this.clearParsedCaptions();
+                }
+                this.resetCaptionStream();
+            };
+            this.reset();
+        };
+        var captionParser = CaptionParser;
+        /**
+         * Returns the first string in the data array ending with a null char '\0'
+         * @param {UInt8} data
+         * @returns the string with the null char
+         */
+
+        var uint8ToCString$1 = function (data) {
+            var index = 0;
+            var curChar = String.fromCharCode(data[index]);
+            var retString = '';
+            while (curChar !== '\0') {
+                retString += curChar;
+                index++;
+                curChar = String.fromCharCode(data[index]);
+            } // Add nullChar
+
+            retString += curChar;
+            return retString;
+        };
+        var string = {
+            uint8ToCString: uint8ToCString$1
+        };
+        var uint8ToCString = string.uint8ToCString;
+        var getUint64$1 = numbers.getUint64;
+        /**
+         * Based on: ISO/IEC 23009 Section: 5.10.3.3
+         * References:
+         * https://dashif-documents.azurewebsites.net/Events/master/event.html#emsg-format
+         * https://aomediacodec.github.io/id3-emsg/
+         *
+         * Takes emsg box data as a uint8 array and returns a emsg box object
+         * @param {UInt8Array} boxData data from emsg box
+         * @returns A parsed emsg box object
+         */
+
+        var parseEmsgBox = function (boxData) {
+            // version + flags
+            var offset = 4;
+            var version = boxData[0];
+            var scheme_id_uri, value, timescale, presentation_time, presentation_time_delta, event_duration, id, message_data;
+            if (version === 0) {
+                scheme_id_uri = uint8ToCString(boxData.subarray(offset));
+                offset += scheme_id_uri.length;
+                value = uint8ToCString(boxData.subarray(offset));
+                offset += value.length;
+                var dv = new DataView(boxData.buffer);
+                timescale = dv.getUint32(offset);
+                offset += 4;
+                presentation_time_delta = dv.getUint32(offset);
+                offset += 4;
+                event_duration = dv.getUint32(offset);
+                offset += 4;
+                id = dv.getUint32(offset);
+                offset += 4;
+            } else if (version === 1) {
+                var dv = new DataView(boxData.buffer);
+                timescale = dv.getUint32(offset);
+                offset += 4;
+                presentation_time = getUint64$1(boxData.subarray(offset));
+                offset += 8;
+                event_duration = dv.getUint32(offset);
+                offset += 4;
+                id = dv.getUint32(offset);
+                offset += 4;
+                scheme_id_uri = uint8ToCString(boxData.subarray(offset));
+                offset += scheme_id_uri.length;
+                value = uint8ToCString(boxData.subarray(offset));
+                offset += value.length;
+            }
+            message_data = new Uint8Array(boxData.subarray(offset, boxData.byteLength));
+            var emsgBox = {
+                scheme_id_uri,
+                value,
+                // if timescale is undefined or 0 set to 1
+                timescale: timescale ? timescale : 1,
+                presentation_time,
+                presentation_time_delta,
+                event_duration,
+                id,
+                message_data
+            };
+            return isValidEmsgBox(version, emsgBox) ? emsgBox : undefined;
+        };
+        /**
+         * Scales a presentation time or time delta with an offset with a provided timescale
+         * @param {number} presentationTime
+         * @param {number} timescale
+         * @param {number} timeDelta
+         * @param {number} offset
+         * @returns the scaled time as a number
+         */
+
+        var scaleTime = function (presentationTime, timescale, timeDelta, offset) {
+            return presentationTime || presentationTime === 0 ? presentationTime / timescale : offset + timeDelta / timescale;
+        };
+        /**
+         * Checks the emsg box data for validity based on the version
+         * @param {number} version of the emsg box to validate
+         * @param {Object} emsg the emsg data to validate
+         * @returns if the box is valid as a boolean
+         */
+
+        var isValidEmsgBox = function (version, emsg) {
+            var hasScheme = emsg.scheme_id_uri !== '\0';
+            var isValidV0Box = version === 0 && isDefined(emsg.presentation_time_delta) && hasScheme;
+            var isValidV1Box = version === 1 && isDefined(emsg.presentation_time) && hasScheme; // Only valid versions of emsg are 0 and 1
+
+            return !(version > 1) && isValidV0Box || isValidV1Box;
+        }; // Utility function to check if an object is defined
+
+        var isDefined = function (data) {
+            return data !== undefined || data !== null;
+        };
+        var emsg$1 = {
+            parseEmsgBox: parseEmsgBox,
+            scaleTime: scaleTime
+        };
+        /**
+         * mux.js
+         *
+         * Copyright (c) Brightcove
+         * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE
+         *
+         * Utilities to detect basic properties and metadata about MP4s.
+         */
+
+        var toUnsigned = bin.toUnsigned;
+        var toHexString = bin.toHexString;
+        var findBox = findBox_1;
+        var parseType$1 = parseType_1;
+        var emsg = emsg$1;
+        var parseTfhd = parseTfhd$2;
+        var parseTrun = parseTrun$2;
+        var parseTfdt = parseTfdt$2;
+        var getUint64 = numbers.getUint64;
+        var timescale, startTime, compositionStartTime, getVideoTrackIds, getTracks, getTimescaleFromMediaHeader, getEmsgID3;
+        var window$1 = window_1;
+        var parseId3Frames = parseId3.parseId3Frames;
+        /**
+         * Parses an MP4 initialization segment and extracts the timescale
+         * values for any declared tracks. Timescale values indicate the
+         * number of clock ticks per second to assume for time-based values
+         * elsewhere in the MP4.
+         *
+         * To determine the start time of an MP4, you need two pieces of
+         * information: the timescale unit and the earliest base media decode
+         * time. Multiple timescales can be specified within an MP4 but the
+         * base media decode time is always expressed in the timescale from
+         * the media header box for the track:
+         * ```
+         * moov > trak > mdia > mdhd.timescale
+         * ```
+         * @param init {Uint8Array} the bytes of the init segment
+         * @return {object} a hash of track ids to timescale values or null if
+         * the init segment is malformed.
+         */
+
+        timescale = function (init) {
+            var result = {},
+                traks = findBox(init, ['moov', 'trak']); // mdhd timescale
+
+            return traks.reduce(function (result, trak) {
+                var tkhd, version, index, id, mdhd;
+                tkhd = findBox(trak, ['tkhd'])[0];
+                if (!tkhd) {
+                    return null;
+                }
+                version = tkhd[0];
+                index = version === 0 ? 12 : 20;
+                id = toUnsigned(tkhd[index] << 24 | tkhd[index + 1] << 16 | tkhd[index + 2] << 8 | tkhd[index + 3]);
+                mdhd = findBox(trak, ['mdia', 'mdhd'])[0];
+                if (!mdhd) {
+                    return null;
+                }
+                version = mdhd[0];
+                index = version === 0 ? 12 : 20;
+                result[id] = toUnsigned(mdhd[index] << 24 | mdhd[index + 1] << 16 | mdhd[index + 2] << 8 | mdhd[index + 3]);
+                return result;
+            }, result);
+        };
+        /**
+         * Determine the base media decode start time, in seconds, for an MP4
+         * fragment. If multiple fragments are specified, the earliest time is
+         * returned.
+         *
+         * The base media decode time can be parsed from track fragment
+         * metadata:
+         * ```
+         * moof > traf > tfdt.baseMediaDecodeTime
+         * ```
+         * It requires the timescale value from the mdhd to interpret.
+         *
+         * @param timescale {object} a hash of track ids to timescale values.
+         * @return {number} the earliest base media decode start time for the
+         * fragment, in seconds
+         */
+
+        startTime = function (timescale, fragment) {
+            var trafs; // we need info from two childrend of each track fragment box
+
+            trafs = findBox(fragment, ['moof', 'traf']); // determine the start times for each track
+
+            var lowestTime = trafs.reduce(function (acc, traf) {
+                var tfhd = findBox(traf, ['tfhd'])[0]; // get the track id from the tfhd
+
+                var id = toUnsigned(tfhd[4] << 24 | tfhd[5] << 16 | tfhd[6] << 8 | tfhd[7]); // assume a 90kHz clock if no timescale was specified
+
+                var scale = timescale[id] || 90e3; // get the base media decode time from the tfdt
+
+                var tfdt = findBox(traf, ['tfdt'])[0];
+                var dv = new DataView(tfdt.buffer, tfdt.byteOffset, tfdt.byteLength);
+                var baseTime; // version 1 is 64 bit
+
+                if (tfdt[0] === 1) {
+                    baseTime = getUint64(tfdt.subarray(4, 12));
+                } else {
+                    baseTime = dv.getUint32(4);
+                } // convert base time to seconds if it is a valid number.
+
+                let seconds;
+                if (typeof baseTime === 'bigint') {
+                    seconds = baseTime / window$1.BigInt(scale);
+                } else if (typeof baseTime === 'number' && !isNaN(baseTime)) {
+                    seconds = baseTime / scale;
+                }
+                if (seconds < Number.MAX_SAFE_INTEGER) {
+                    seconds = Number(seconds);
+                }
+                if (seconds < acc) {
+                    acc = seconds;
+                }
+                return acc;
+            }, Infinity);
+            return typeof lowestTime === 'bigint' || isFinite(lowestTime) ? lowestTime : 0;
+        };
+        /**
+         * Determine the composition start, in seconds, for an MP4
+         * fragment.
+         *
+         * The composition start time of a fragment can be calculated using the base
+         * media decode time, composition time offset, and timescale, as follows:
+         *
+         * compositionStartTime = (baseMediaDecodeTime + compositionTimeOffset) / timescale
+         *
+         * All of the aforementioned information is contained within a media fragment's
+         * `traf` box, except for timescale info, which comes from the initialization
+         * segment, so a track id (also contained within a `traf`) is also necessary to
+         * associate it with a timescale
+         *
+         *
+         * @param timescales {object} - a hash of track ids to timescale values.
+         * @param fragment {Unit8Array} - the bytes of a media segment
+         * @return {number} the composition start time for the fragment, in seconds
+         **/
+
+        compositionStartTime = function (timescales, fragment) {
+            var trafBoxes = findBox(fragment, ['moof', 'traf']);
+            var baseMediaDecodeTime = 0;
+            var compositionTimeOffset = 0;
+            var trackId;
+            if (trafBoxes && trafBoxes.length) {
+                // The spec states that track run samples contained within a `traf` box are contiguous, but
+                // it does not explicitly state whether the `traf` boxes themselves are contiguous.
+                // We will assume that they are, so we only need the first to calculate start time.
+                var tfhd = findBox(trafBoxes[0], ['tfhd'])[0];
+                var trun = findBox(trafBoxes[0], ['trun'])[0];
+                var tfdt = findBox(trafBoxes[0], ['tfdt'])[0];
+                if (tfhd) {
+                    var parsedTfhd = parseTfhd(tfhd);
+                    trackId = parsedTfhd.trackId;
+                }
+                if (tfdt) {
+                    var parsedTfdt = parseTfdt(tfdt);
+                    baseMediaDecodeTime = parsedTfdt.baseMediaDecodeTime;
+                }
+                if (trun) {
+                    var parsedTrun = parseTrun(trun);
+                    if (parsedTrun.samples && parsedTrun.samples.length) {
+                        compositionTimeOffset = parsedTrun.samples[0].compositionTimeOffset || 0;
+                    }
+                }
+            } // Get timescale for this specific track. Assume a 90kHz clock if no timescale was
+            // specified.
+
+            var timescale = timescales[trackId] || 90e3; // return the composition start time, in seconds
+
+            if (typeof baseMediaDecodeTime === 'bigint') {
+                compositionTimeOffset = window$1.BigInt(compositionTimeOffset);
+                timescale = window$1.BigInt(timescale);
+            }
+            var result = (baseMediaDecodeTime + compositionTimeOffset) / timescale;
+            if (typeof result === 'bigint' && result < Number.MAX_SAFE_INTEGER) {
+                result = Number(result);
+            }
+            return result;
+        };
+        /**
+         * Find the trackIds of the video tracks in this source.
+         * Found by parsing the Handler Reference and Track Header Boxes:
+         *   moov > trak > mdia > hdlr
+         *   moov > trak > tkhd
+         *
+         * @param {Uint8Array} init - The bytes of the init segment for this source
+         * @return {Number[]} A list of trackIds
+         *
+         * @see ISO-BMFF-12/2015, Section 8.4.3
+         **/
+
+        getVideoTrackIds = function (init) {
+            var traks = findBox(init, ['moov', 'trak']);
+            var videoTrackIds = [];
+            traks.forEach(function (trak) {
+                var hdlrs = findBox(trak, ['mdia', 'hdlr']);
+                var tkhds = findBox(trak, ['tkhd']);
+                hdlrs.forEach(function (hdlr, index) {
+                    var handlerType = parseType$1(hdlr.subarray(8, 12));
+                    var tkhd = tkhds[index];
+                    var view;
+                    var version;
+                    var trackId;
+                    if (handlerType === 'vide') {
+                        view = new DataView(tkhd.buffer, tkhd.byteOffset, tkhd.byteLength);
+                        version = view.getUint8(0);
+                        trackId = version === 0 ? view.getUint32(12) : view.getUint32(20);
+                        videoTrackIds.push(trackId);
+                    }
+                });
+            });
+            return videoTrackIds;
+        };
+        getTimescaleFromMediaHeader = function (mdhd) {
+            // mdhd is a FullBox, meaning it will have its own version as the first byte
+            var version = mdhd[0];
+            var index = version === 0 ? 12 : 20;
+            return toUnsigned(mdhd[index] << 24 | mdhd[index + 1] << 16 | mdhd[index + 2] << 8 | mdhd[index + 3]);
+        };
+        /**
+         * Get all the video, audio, and hint tracks from a non fragmented
+         * mp4 segment
+         */
+
+        getTracks = function (init) {
+            var traks = findBox(init, ['moov', 'trak']);
+            var tracks = [];
+            traks.forEach(function (trak) {
+                var track = {};
+                var tkhd = findBox(trak, ['tkhd'])[0];
+                var view, tkhdVersion; // id
+
+                if (tkhd) {
+                    view = new DataView(tkhd.buffer, tkhd.byteOffset, tkhd.byteLength);
+                    tkhdVersion = view.getUint8(0);
+                    track.id = tkhdVersion === 0 ? view.getUint32(12) : view.getUint32(20);
+                }
+                var hdlr = findBox(trak, ['mdia', 'hdlr'])[0]; // type
+
+                if (hdlr) {
+                    var type = parseType$1(hdlr.subarray(8, 12));
+                    if (type === 'vide') {
+                        track.type = 'video';
+                    } else if (type === 'soun') {
+                        track.type = 'audio';
+                    } else {
+                        track.type = type;
+                    }
+                } // codec
+
+                var stsd = findBox(trak, ['mdia', 'minf', 'stbl', 'stsd'])[0];
+                if (stsd) {
+                    var sampleDescriptions = stsd.subarray(8); // gives the codec type string
+
+                    track.codec = parseType$1(sampleDescriptions.subarray(4, 8));
+                    var codecBox = findBox(sampleDescriptions, [track.codec])[0];
+                    var codecConfig, codecConfigType;
+                    if (codecBox) {
+                        // https://tools.ietf.org/html/rfc6381#section-3.3
+                        if (/^[asm]vc[1-9]$/i.test(track.codec)) {
+                            // we don't need anything but the "config" parameter of the
+                            // avc1 codecBox
+                            codecConfig = codecBox.subarray(78);
+                            codecConfigType = parseType$1(codecConfig.subarray(4, 8));
+                            if (codecConfigType === 'avcC' && codecConfig.length > 11) {
+                                track.codec += '.'; // left padded with zeroes for single digit hex
+                                // profile idc
+
+                                track.codec += toHexString(codecConfig[9]); // the byte containing the constraint_set flags
+
+                                track.codec += toHexString(codecConfig[10]); // level idc
+
+                                track.codec += toHexString(codecConfig[11]);
+                            } else {
+                                // TODO: show a warning that we couldn't parse the codec
+                                // and are using the default
+                                track.codec = 'avc1.4d400d';
+                            }
+                        } else if (/^mp4[a,v]$/i.test(track.codec)) {
+                            // we do not need anything but the streamDescriptor of the mp4a codecBox
+                            codecConfig = codecBox.subarray(28);
+                            codecConfigType = parseType$1(codecConfig.subarray(4, 8));
+                            if (codecConfigType === 'esds' && codecConfig.length > 20 && codecConfig[19] !== 0) {
+                                track.codec += '.' + toHexString(codecConfig[19]); // this value is only a single digit
+
+                                track.codec += '.' + toHexString(codecConfig[20] >>> 2 & 0x3f).replace(/^0/, '');
+                            } else {
+                                // TODO: show a warning that we couldn't parse the codec
+                                // and are using the default
+                                track.codec = 'mp4a.40.2';
+                            }
+                        } else {
+                            // flac, opus, etc
+                            track.codec = track.codec.toLowerCase();
+                        }
+                    }
+                }
+                var mdhd = findBox(trak, ['mdia', 'mdhd'])[0];
+                if (mdhd) {
+                    track.timescale = getTimescaleFromMediaHeader(mdhd);
+                }
+                tracks.push(track);
+            });
+            return tracks;
+        };
+        /**
+         * Returns an array of emsg ID3 data from the provided segmentData.
+         * An offset can also be provided as the Latest Arrival Time to calculate
+         * the Event Start Time of v0 EMSG boxes.
+         * See: https://dashif-documents.azurewebsites.net/Events/master/event.html#Inband-event-timing
+         *
+         * @param {Uint8Array} segmentData the segment byte array.
+         * @param {number} offset the segment start time or Latest Arrival Time,
+         * @return {Object[]} an array of ID3 parsed from EMSG boxes
+         */
+
+        getEmsgID3 = function (segmentData, offset = 0) {
+            var emsgBoxes = findBox(segmentData, ['emsg']);
+            return emsgBoxes.map(data => {
+                var parsedBox = emsg.parseEmsgBox(new Uint8Array(data));
+                var parsedId3Frames = parseId3Frames(parsedBox.message_data);
+                return {
+                    cueTime: emsg.scaleTime(parsedBox.presentation_time, parsedBox.timescale, parsedBox.presentation_time_delta, offset),
+                    duration: emsg.scaleTime(parsedBox.event_duration, parsedBox.timescale),
+                    frames: parsedId3Frames
+                };
+            });
+        };
+        var probe$2 = {
+            // export mp4 inspector's findBox and parseType for backwards compatibility
+            findBox: findBox,
+            parseType: parseType$1,
+            timescale: timescale,
+            startTime: startTime,
+            compositionStartTime: compositionStartTime,
+            videoTrackIds: getVideoTrackIds,
+            tracks: getTracks,
+            getTimescaleFromMediaHeader: getTimescaleFromMediaHeader,
+            getEmsgID3: getEmsgID3
+        };
+        /**
+         * mux.js
+         *
+         * Copyright (c) Brightcove
+         * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE
+         *
+         * Utilities to detect basic properties and metadata about TS Segments.
+         */
+
+        var StreamTypes$1 = streamTypes;
+        var parsePid = function (packet) {
+            var pid = packet[1] & 0x1f;
+            pid <<= 8;
+            pid |= packet[2];
+            return pid;
+        };
+        var parsePayloadUnitStartIndicator = function (packet) {
+            return !!(packet[1] & 0x40);
+        };
+        var parseAdaptionField = function (packet) {
+            var offset = 0; // if an adaption field is present, its length is specified by the
+            // fifth byte of the TS packet header. The adaptation field is
+            // used to add stuffing to PES packets that don't fill a complete
+            // TS packet, and to specify some forms of timing and control data
+            // that we do not currently use.
+
+            if ((packet[3] & 0x30) >>> 4 > 0x01) {
+                offset += packet[4] + 1;
+            }
+            return offset;
+        };
+        var parseType = function (packet, pmtPid) {
+            var pid = parsePid(packet);
+            if (pid === 0) {
+                return 'pat';
+            } else if (pid === pmtPid) {
+                return 'pmt';
+            } else if (pmtPid) {
+                return 'pes';
+            }
+            return null;
+        };
+        var parsePat = function (packet) {
+            var pusi = parsePayloadUnitStartIndicator(packet);
+            var offset = 4 + parseAdaptionField(packet);
+            if (pusi) {
+                offset += packet[offset] + 1;
+            }
+            return (packet[offset + 10] & 0x1f) << 8 | packet[offset + 11];
+        };
+        var parsePmt = function (packet) {
+            var programMapTable = {};
+            var pusi = parsePayloadUnitStartIndicator(packet);
+            var payloadOffset = 4 + parseAdaptionField(packet);
+            if (pusi) {
+                payloadOffset += packet[payloadOffset] + 1;
+            } // PMTs can be sent ahead of the time when they should actually
+            // take effect. We don't believe this should ever be the case
+            // for HLS but we'll ignore "forward" PMT declarations if we see
+            // them. Future PMT declarations have the current_next_indicator
+            // set to zero.
+
+            if (!(packet[payloadOffset + 5] & 0x01)) {
+                return;
+            }
+            var sectionLength, tableEnd, programInfoLength; // the mapping table ends at the end of the current section
+
+            sectionLength = (packet[payloadOffset + 1] & 0x0f) << 8 | packet[payloadOffset + 2];
+            tableEnd = 3 + sectionLength - 4; // to determine where the table is, we have to figure out how
+            // long the program info descriptors are
+
+            programInfoLength = (packet[payloadOffset + 10] & 0x0f) << 8 | packet[payloadOffset + 11]; // advance the offset to the first entry in the mapping table
+
+            var offset = 12 + programInfoLength;
+            while (offset < tableEnd) {
+                var i = payloadOffset + offset; // add an entry that maps the elementary_pid to the stream_type
+
+                programMapTable[(packet[i + 1] & 0x1F) << 8 | packet[i + 2]] = packet[i]; // move to the next table entry
+                // skip past the elementary stream descriptors, if present
+
+                offset += ((packet[i + 3] & 0x0F) << 8 | packet[i + 4]) + 5;
+            }
+            return programMapTable;
+        };
+        var parsePesType = function (packet, programMapTable) {
+            var pid = parsePid(packet);
+            var type = programMapTable[pid];
+            switch (type) {
+                case StreamTypes$1.H264_STREAM_TYPE:
+                    return 'video';
+                case StreamTypes$1.ADTS_STREAM_TYPE:
+                    return 'audio';
+                case StreamTypes$1.METADATA_STREAM_TYPE:
+                    return 'timed-metadata';
+                default:
+                    return null;
+            }
+        };
+        var parsePesTime = function (packet) {
+            var pusi = parsePayloadUnitStartIndicator(packet);
+            if (!pusi) {
+                return null;
+            }
+            var offset = 4 + parseAdaptionField(packet);
+            if (offset >= packet.byteLength) {
+                // From the H 222.0 MPEG-TS spec
+                // "For transport stream packets carrying PES packets, stuffing is needed when there
+                //  is insufficient PES packet data to completely fill the transport stream packet
+                //  payload bytes. Stuffing is accomplished by defining an adaptation field longer than
+                //  the sum of the lengths of the data elements in it, so that the payload bytes
+                //  remaining after the adaptation field exactly accommodates the available PES packet
+                //  data."
+                //
+                // If the offset is >= the length of the packet, then the packet contains no data
+                // and instead is just adaption field stuffing bytes
+                return null;
+            }
+            var pes = null;
+            var ptsDtsFlags; // PES packets may be annotated with a PTS value, or a PTS value
+            // and a DTS value. Determine what combination of values is
+            // available to work with.
+
+            ptsDtsFlags = packet[offset + 7]; // PTS and DTS are normally stored as a 33-bit number.  Javascript
+            // performs all bitwise operations on 32-bit integers but javascript
+            // supports a much greater range (52-bits) of integer using standard
+            // mathematical operations.
+            // We construct a 31-bit value using bitwise operators over the 31
+            // most significant bits and then multiply by 4 (equal to a left-shift
+            // of 2) before we add the final 2 least significant bits of the
+            // timestamp (equal to an OR.)
+
+            if (ptsDtsFlags & 0xC0) {
+                pes = {}; // the PTS and DTS are not written out directly. For information
+                // on how they are encoded, see
+                // http://dvd.sourceforge.net/dvdinfo/pes-hdr.html
+
+                pes.pts = (packet[offset + 9] & 0x0E) << 27 | (packet[offset + 10] & 0xFF) << 20 | (packet[offset + 11] & 0xFE) << 12 | (packet[offset + 12] & 0xFF) << 5 | (packet[offset + 13] & 0xFE) >>> 3;
+                pes.pts *= 4; // Left shift by 2
+
+                pes.pts += (packet[offset + 13] & 0x06) >>> 1; // OR by the two LSBs
+
+                pes.dts = pes.pts;
+                if (ptsDtsFlags & 0x40) {
+                    pes.dts = (packet[offset + 14] & 0x0E) << 27 | (packet[offset + 15] & 0xFF) << 20 | (packet[offset + 16] & 0xFE) << 12 | (packet[offset + 17] & 0xFF) << 5 | (packet[offset + 18] & 0xFE) >>> 3;
+                    pes.dts *= 4; // Left shift by 2
+
+                    pes.dts += (packet[offset + 18] & 0x06) >>> 1; // OR by the two LSBs
+                }
+            }
+
+            return pes;
+        };
+        var parseNalUnitType = function (type) {
+            switch (type) {
+                case 0x05:
+                    return 'slice_layer_without_partitioning_rbsp_idr';
+                case 0x06:
+                    return 'sei_rbsp';
+                case 0x07:
+                    return 'seq_parameter_set_rbsp';
+                case 0x08:
+                    return 'pic_parameter_set_rbsp';
+                case 0x09:
+                    return 'access_unit_delimiter_rbsp';
+                default:
+                    return null;
+            }
+        };
+        var videoPacketContainsKeyFrame = function (packet) {
+            var offset = 4 + parseAdaptionField(packet);
+            var frameBuffer = packet.subarray(offset);
+            var frameI = 0;
+            var frameSyncPoint = 0;
+            var foundKeyFrame = false;
+            var nalType; // advance the sync point to a NAL start, if necessary
+
+            for (; frameSyncPoint < frameBuffer.byteLength - 3; frameSyncPoint++) {
+                if (frameBuffer[frameSyncPoint + 2] === 1) {
+                    // the sync point is properly aligned
+                    frameI = frameSyncPoint + 5;
+                    break;
+                }
+            }
+            while (frameI < frameBuffer.byteLength) {
+                // look at the current byte to determine if we've hit the end of
+                // a NAL unit boundary
+                switch (frameBuffer[frameI]) {
+                    case 0:
+                        // skip past non-sync sequences
+                        if (frameBuffer[frameI - 1] !== 0) {
+                            frameI += 2;
+                            break;
+                        } else if (frameBuffer[frameI - 2] !== 0) {
+                            frameI++;
+                            break;
+                        }
+                        if (frameSyncPoint + 3 !== frameI - 2) {
+                            nalType = parseNalUnitType(frameBuffer[frameSyncPoint + 3] & 0x1f);
+                            if (nalType === 'slice_layer_without_partitioning_rbsp_idr') {
+                                foundKeyFrame = true;
+                            }
+                        } // drop trailing zeroes
+
+                        do {
+                            frameI++;
+                        } while (frameBuffer[frameI] !== 1 && frameI < frameBuffer.length);
+                        frameSyncPoint = frameI - 2;
+                        frameI += 3;
+                        break;
+                    case 1:
+                        // skip past non-sync sequences
+                        if (frameBuffer[frameI - 1] !== 0 || frameBuffer[frameI - 2] !== 0) {
+                            frameI += 3;
+                            break;
+                        }
+                        nalType = parseNalUnitType(frameBuffer[frameSyncPoint + 3] & 0x1f);
+                        if (nalType === 'slice_layer_without_partitioning_rbsp_idr') {
+                            foundKeyFrame = true;
+                        }
+                        frameSyncPoint = frameI - 2;
+                        frameI += 3;
+                        break;
+                    default:
+                        // the current byte isn't a one or zero, so it cannot be part
+                        // of a sync sequence
+                        frameI += 3;
+                        break;
+                }
+            }
+            frameBuffer = frameBuffer.subarray(frameSyncPoint);
+            frameI -= frameSyncPoint;
+            frameSyncPoint = 0; // parse the final nal
+
+            if (frameBuffer && frameBuffer.byteLength > 3) {
+                nalType = parseNalUnitType(frameBuffer[frameSyncPoint + 3] & 0x1f);
+                if (nalType === 'slice_layer_without_partitioning_rbsp_idr') {
+                    foundKeyFrame = true;
+                }
+            }
+            return foundKeyFrame;
+        };
+        var probe$1 = {
+            parseType: parseType,
+            parsePat: parsePat,
+            parsePmt: parsePmt,
+            parsePayloadUnitStartIndicator: parsePayloadUnitStartIndicator,
+            parsePesType: parsePesType,
+            parsePesTime: parsePesTime,
+            videoPacketContainsKeyFrame: videoPacketContainsKeyFrame
+        };
+        /**
+         * mux.js
+         *
+         * Copyright (c) Brightcove
+         * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE
+         *
+         * Parse mpeg2 transport stream packets to extract basic timing information
+         */
+
+        var StreamTypes = streamTypes;
+        var handleRollover = timestampRolloverStream.handleRollover;
+        var probe = {};
+        probe.ts = probe$1;
+        probe.aac = utils;
+        var ONE_SECOND_IN_TS = clock$2.ONE_SECOND_IN_TS;
+        var MP2T_PACKET_LENGTH = 188,
+            // bytes
+            SYNC_BYTE = 0x47;
+        /**
+         * walks through segment data looking for pat and pmt packets to parse out
+         * program map table information
+         */
+
+        var parsePsi_ = function (bytes, pmt) {
+            var startIndex = 0,
+                endIndex = MP2T_PACKET_LENGTH,
+                packet,
+                type;
+            while (endIndex < bytes.byteLength) {
+                // Look for a pair of start and end sync bytes in the data..
+                if (bytes[startIndex] === SYNC_BYTE && bytes[endIndex] === SYNC_BYTE) {
+                    // We found a packet
+                    packet = bytes.subarray(startIndex, endIndex);
+                    type = probe.ts.parseType(packet, pmt.pid);
+                    switch (type) {
+                        case 'pat':
+                            pmt.pid = probe.ts.parsePat(packet);
+                            break;
+                        case 'pmt':
+                            var table = probe.ts.parsePmt(packet);
+                            pmt.table = pmt.table || {};
+                            Object.keys(table).forEach(function (key) {
+                                pmt.table[key] = table[key];
+                            });
+                            break;
+                    }
+                    startIndex += MP2T_PACKET_LENGTH;
+                    endIndex += MP2T_PACKET_LENGTH;
+                    continue;
+                } // If we get here, we have somehow become de-synchronized and we need to step
+                // forward one byte at a time until we find a pair of sync bytes that denote
+                // a packet
+
+                startIndex++;
+                endIndex++;
+            }
+        };
+        /**
+         * walks through the segment data from the start and end to get timing information
+         * for the first and last audio pes packets
+         */
+
+        var parseAudioPes_ = function (bytes, pmt, result) {
+            var startIndex = 0,
+                endIndex = MP2T_PACKET_LENGTH,
+                packet,
+                type,
+                pesType,
+                pusi,
+                parsed;
+            var endLoop = false; // Start walking from start of segment to get first audio packet
+
+            while (endIndex <= bytes.byteLength) {
+                // Look for a pair of start and end sync bytes in the data..
+                if (bytes[startIndex] === SYNC_BYTE && (bytes[endIndex] === SYNC_BYTE || endIndex === bytes.byteLength)) {
+                    // We found a packet
+                    packet = bytes.subarray(startIndex, endIndex);
+                    type = probe.ts.parseType(packet, pmt.pid);
+                    switch (type) {
+                        case 'pes':
+                            pesType = probe.ts.parsePesType(packet, pmt.table);
+                            pusi = probe.ts.parsePayloadUnitStartIndicator(packet);
+                            if (pesType === 'audio' && pusi) {
+                                parsed = probe.ts.parsePesTime(packet);
+                                if (parsed) {
+                                    parsed.type = 'audio';
+                                    result.audio.push(parsed);
+                                    endLoop = true;
+                                }
+                            }
+                            break;
+                    }
+                    if (endLoop) {
+                        break;
+                    }
+                    startIndex += MP2T_PACKET_LENGTH;
+                    endIndex += MP2T_PACKET_LENGTH;
+                    continue;
+                } // If we get here, we have somehow become de-synchronized and we need to step
+                // forward one byte at a time until we find a pair of sync bytes that denote
+                // a packet
+
+                startIndex++;
+                endIndex++;
+            } // Start walking from end of segment to get last audio packet
+
+            endIndex = bytes.byteLength;
+            startIndex = endIndex - MP2T_PACKET_LENGTH;
+            endLoop = false;
+            while (startIndex >= 0) {
+                // Look for a pair of start and end sync bytes in the data..
+                if (bytes[startIndex] === SYNC_BYTE && (bytes[endIndex] === SYNC_BYTE || endIndex === bytes.byteLength)) {
+                    // We found a packet
+                    packet = bytes.subarray(startIndex, endIndex);
+                    type = probe.ts.parseType(packet, pmt.pid);
+                    switch (type) {
+                        case 'pes':
+                            pesType = probe.ts.parsePesType(packet, pmt.table);
+                            pusi = probe.ts.parsePayloadUnitStartIndicator(packet);
+                            if (pesType === 'audio' && pusi) {
+                                parsed = probe.ts.parsePesTime(packet);
+                                if (parsed) {
+                                    parsed.type = 'audio';
+                                    result.audio.push(parsed);
+                                    endLoop = true;
+                                }
+                            }
+                            break;
+                    }
+                    if (endLoop) {
+                        break;
+                    }
+                    startIndex -= MP2T_PACKET_LENGTH;
+                    endIndex -= MP2T_PACKET_LENGTH;
+                    continue;
+                } // If we get here, we have somehow become de-synchronized and we need to step
+                // forward one byte at a time until we find a pair of sync bytes that denote
+                // a packet
+
+                startIndex--;
+                endIndex--;
+            }
+        };
+        /**
+         * walks through the segment data from the start and end to get timing information
+         * for the first and last video pes packets as well as timing information for the first
+         * key frame.
+         */
+
+        var parseVideoPes_ = function (bytes, pmt, result) {
+            var startIndex = 0,
+                endIndex = MP2T_PACKET_LENGTH,
+                packet,
+                type,
+                pesType,
+                pusi,
+                parsed,
+                frame,
+                i,
+                pes;
+            var endLoop = false;
+            var currentFrame = {
+                data: [],
+                size: 0
+            }; // Start walking from start of segment to get first video packet
+
+            while (endIndex < bytes.byteLength) {
+                // Look for a pair of start and end sync bytes in the data..
+                if (bytes[startIndex] === SYNC_BYTE && bytes[endIndex] === SYNC_BYTE) {
+                    // We found a packet
+                    packet = bytes.subarray(startIndex, endIndex);
+                    type = probe.ts.parseType(packet, pmt.pid);
+                    switch (type) {
+                        case 'pes':
+                            pesType = probe.ts.parsePesType(packet, pmt.table);
+                            pusi = probe.ts.parsePayloadUnitStartIndicator(packet);
+                            if (pesType === 'video') {
+                                if (pusi && !endLoop) {
+                                    parsed = probe.ts.parsePesTime(packet);
+                                    if (parsed) {
+                                        parsed.type = 'video';
+                                        result.video.push(parsed);
+                                        endLoop = true;
+                                    }
+                                }
+                                if (!result.firstKeyFrame) {
+                                    if (pusi) {
+                                        if (currentFrame.size !== 0) {
+                                            frame = new Uint8Array(currentFrame.size);
+                                            i = 0;
+                                            while (currentFrame.data.length) {
+                                                pes = currentFrame.data.shift();
+                                                frame.set(pes, i);
+                                                i += pes.byteLength;
+                                            }
+                                            if (probe.ts.videoPacketContainsKeyFrame(frame)) {
+                                                var firstKeyFrame = probe.ts.parsePesTime(frame); // PTS/DTS may not be available. Simply *not* setting
+                                                // the keyframe seems to work fine with HLS playback
+                                                // and definitely preferable to a crash with TypeError...
+
+                                                if (firstKeyFrame) {
+                                                    result.firstKeyFrame = firstKeyFrame;
+                                                    result.firstKeyFrame.type = 'video';
+                                                } else {
+                                                    // eslint-disable-next-line
+                                                    console.warn('Failed to extract PTS/DTS from PES at first keyframe. ' + 'This could be an unusual TS segment, or else mux.js did not ' + 'parse your TS segment correctly. If you know your TS ' + 'segments do contain PTS/DTS on keyframes please file a bug ' + 'report! You can try ffprobe to double check for yourself.');
+                                                }
+                                            }
+                                            currentFrame.size = 0;
+                                        }
+                                    }
+                                    currentFrame.data.push(packet);
+                                    currentFrame.size += packet.byteLength;
+                                }
+                            }
+                            break;
+                    }
+                    if (endLoop && result.firstKeyFrame) {
+                        break;
+                    }
+                    startIndex += MP2T_PACKET_LENGTH;
+                    endIndex += MP2T_PACKET_LENGTH;
+                    continue;
+                } // If we get here, we have somehow become de-synchronized and we need to step
+                // forward one byte at a time until we find a pair of sync bytes that denote
+                // a packet
+
+                startIndex++;
+                endIndex++;
+            } // Start walking from end of segment to get last video packet
+
+            endIndex = bytes.byteLength;
+            startIndex = endIndex - MP2T_PACKET_LENGTH;
+            endLoop = false;
+            while (startIndex >= 0) {
+                // Look for a pair of start and end sync bytes in the data..
+                if (bytes[startIndex] === SYNC_BYTE && bytes[endIndex] === SYNC_BYTE) {
+                    // We found a packet
+                    packet = bytes.subarray(startIndex, endIndex);
+                    type = probe.ts.parseType(packet, pmt.pid);
+                    switch (type) {
+                        case 'pes':
+                            pesType = probe.ts.parsePesType(packet, pmt.table);
+                            pusi = probe.ts.parsePayloadUnitStartIndicator(packet);
+                            if (pesType === 'video' && pusi) {
+                                parsed = probe.ts.parsePesTime(packet);
+                                if (parsed) {
+                                    parsed.type = 'video';
+                                    result.video.push(parsed);
+                                    endLoop = true;
+                                }
+                            }
+                            break;
+                    }
+                    if (endLoop) {
+                        break;
+                    }
+                    startIndex -= MP2T_PACKET_LENGTH;
+                    endIndex -= MP2T_PACKET_LENGTH;
+                    continue;
+                } // If we get here, we have somehow become de-synchronized and we need to step
+                // forward one byte at a time until we find a pair of sync bytes that denote
+                // a packet
+
+                startIndex--;
+                endIndex--;
+            }
+        };
+        /**
+         * Adjusts the timestamp information for the segment to account for
+         * rollover and convert to seconds based on pes packet timescale (90khz clock)
+         */
+
+        var adjustTimestamp_ = function (segmentInfo, baseTimestamp) {
+            if (segmentInfo.audio && segmentInfo.audio.length) {
+                var audioBaseTimestamp = baseTimestamp;
+                if (typeof audioBaseTimestamp === 'undefined' || isNaN(audioBaseTimestamp)) {
+                    audioBaseTimestamp = segmentInfo.audio[0].dts;
+                }
+                segmentInfo.audio.forEach(function (info) {
+                    info.dts = handleRollover(info.dts, audioBaseTimestamp);
+                    info.pts = handleRollover(info.pts, audioBaseTimestamp); // time in seconds
+
+                    info.dtsTime = info.dts / ONE_SECOND_IN_TS;
+                    info.ptsTime = info.pts / ONE_SECOND_IN_TS;
+                });
+            }
+            if (segmentInfo.video && segmentInfo.video.length) {
+                var videoBaseTimestamp = baseTimestamp;
+                if (typeof videoBaseTimestamp === 'undefined' || isNaN(videoBaseTimestamp)) {
+                    videoBaseTimestamp = segmentInfo.video[0].dts;
+                }
+                segmentInfo.video.forEach(function (info) {
+                    info.dts = handleRollover(info.dts, videoBaseTimestamp);
+                    info.pts = handleRollover(info.pts, videoBaseTimestamp); // time in seconds
+
+                    info.dtsTime = info.dts / ONE_SECOND_IN_TS;
+                    info.ptsTime = info.pts / ONE_SECOND_IN_TS;
+                });
+                if (segmentInfo.firstKeyFrame) {
+                    var frame = segmentInfo.firstKeyFrame;
+                    frame.dts = handleRollover(frame.dts, videoBaseTimestamp);
+                    frame.pts = handleRollover(frame.pts, videoBaseTimestamp); // time in seconds
+
+                    frame.dtsTime = frame.dts / ONE_SECOND_IN_TS;
+                    frame.ptsTime = frame.pts / ONE_SECOND_IN_TS;
+                }
+            }
+        };
+        /**
+         * inspects the aac data stream for start and end time information
+         */
+
+        var inspectAac_ = function (bytes) {
+            var endLoop = false,
+                audioCount = 0,
+                sampleRate = null,
+                timestamp = null,
+                frameSize = 0,
+                byteIndex = 0,
+                packet;
+            while (bytes.length - byteIndex >= 3) {
+                var type = probe.aac.parseType(bytes, byteIndex);
+                switch (type) {
+                    case 'timed-metadata':
+                        // Exit early because we don't have enough to parse
+                        // the ID3 tag header
+                        if (bytes.length - byteIndex < 10) {
+                            endLoop = true;
+                            break;
+                        }
+                        frameSize = probe.aac.parseId3TagSize(bytes, byteIndex); // Exit early if we don't have enough in the buffer
+                        // to emit a full packet
+
+                        if (frameSize > bytes.length) {
+                            endLoop = true;
+                            break;
+                        }
+                        if (timestamp === null) {
+                            packet = bytes.subarray(byteIndex, byteIndex + frameSize);
+                            timestamp = probe.aac.parseAacTimestamp(packet);
+                        }
+                        byteIndex += frameSize;
+                        break;
+                    case 'audio':
+                        // Exit early because we don't have enough to parse
+                        // the ADTS frame header
+                        if (bytes.length - byteIndex < 7) {
+                            endLoop = true;
+                            break;
+                        }
+                        frameSize = probe.aac.parseAdtsSize(bytes, byteIndex); // Exit early if we don't have enough in the buffer
+                        // to emit a full packet
+
+                        if (frameSize > bytes.length) {
+                            endLoop = true;
+                            break;
+                        }
+                        if (sampleRate === null) {
+                            packet = bytes.subarray(byteIndex, byteIndex + frameSize);
+                            sampleRate = probe.aac.parseSampleRate(packet);
+                        }
+                        audioCount++;
+                        byteIndex += frameSize;
+                        break;
+                    default:
+                        byteIndex++;
+                        break;
+                }
+                if (endLoop) {
+                    return null;
+                }
+            }
+            if (sampleRate === null || timestamp === null) {
+                return null;
+            }
+            var audioTimescale = ONE_SECOND_IN_TS / sampleRate;
+            var result = {
+                audio: [{
+                    type: 'audio',
+                    dts: timestamp,
+                    pts: timestamp
+                }, {
+                    type: 'audio',
+                    dts: timestamp + audioCount * 1024 * audioTimescale,
+                    pts: timestamp + audioCount * 1024 * audioTimescale
+                }]
+            };
+            return result;
+        };
+        /**
+         * inspects the transport stream segment data for start and end time information
+         * of the audio and video tracks (when present) as well as the first key frame's
+         * start time.
+         */
+
+        var inspectTs_ = function (bytes) {
+            var pmt = {
+                pid: null,
+                table: null
+            };
+            var result = {};
+            parsePsi_(bytes, pmt);
+            for (var pid in pmt.table) {
+                if (pmt.table.hasOwnProperty(pid)) {
+                    var type = pmt.table[pid];
+                    switch (type) {
+                        case StreamTypes.H264_STREAM_TYPE:
+                            result.video = [];
+                            parseVideoPes_(bytes, pmt, result);
+                            if (result.video.length === 0) {
+                                delete result.video;
+                            }
+                            break;
+                        case StreamTypes.ADTS_STREAM_TYPE:
+                            result.audio = [];
+                            parseAudioPes_(bytes, pmt, result);
+                            if (result.audio.length === 0) {
+                                delete result.audio;
+                            }
+                            break;
+                    }
+                }
+            }
+            return result;
+        };
+        /**
+         * Inspects segment byte data and returns an object with start and end timing information
+         *
+         * @param {Uint8Array} bytes The segment byte data
+         * @param {Number} baseTimestamp Relative reference timestamp used when adjusting frame
+         *  timestamps for rollover. This value must be in 90khz clock.
+         * @return {Object} Object containing start and end frame timing info of segment.
+         */
+
+        var inspect = function (bytes, baseTimestamp) {
+            var isAacData = probe.aac.isLikelyAacData(bytes);
+            var result;
+            if (isAacData) {
+                result = inspectAac_(bytes);
+            } else {
+                result = inspectTs_(bytes);
+            }
+            if (!result || !result.audio && !result.video) {
+                return null;
+            }
+            adjustTimestamp_(result, baseTimestamp);
+            return result;
+        };
+        var tsInspector = {
+            inspect: inspect,
+            parseAudioPes_: parseAudioPes_
+        };
+        /* global self */
+
+        /**
+         * Re-emits transmuxer events by converting them into messages to the
+         * world outside the worker.
+         *
+         * @param {Object} transmuxer the transmuxer to wire events on
+         * @private
+         */
+
+        const wireTransmuxerEvents = function (self, transmuxer) {
+            transmuxer.on('data', function (segment) {
+                // transfer ownership of the underlying ArrayBuffer
+                // instead of doing a copy to save memory
+                // ArrayBuffers are transferable but generic TypedArrays are not
+                // @link https://developer.mozilla.org/en-US/docs/Web/API/Web_Workers_API/Using_web_workers#Passing_data_by_transferring_ownership_(transferable_objects)
+                const initArray = segment.initSegment;
+                segment.initSegment = {
+                    data: initArray.buffer,
+                    byteOffset: initArray.byteOffset,
+                    byteLength: initArray.byteLength
+                };
+                const typedArray = segment.data;
+                segment.data = typedArray.buffer;
+                self.postMessage({
+                    action: 'data',
+                    segment,
+                    byteOffset: typedArray.byteOffset,
+                    byteLength: typedArray.byteLength
+                }, [segment.data]);
+            });
+            transmuxer.on('done', function (data) {
+                self.postMessage({
+                    action: 'done'
+                });
+            });
+            transmuxer.on('gopInfo', function (gopInfo) {
+                self.postMessage({
+                    action: 'gopInfo',
+                    gopInfo
+                });
+            });
+            transmuxer.on('videoSegmentTimingInfo', function (timingInfo) {
+                const videoSegmentTimingInfo = {
+                    start: {
+                        decode: clock$2.videoTsToSeconds(timingInfo.start.dts),
+                        presentation: clock$2.videoTsToSeconds(timingInfo.start.pts)
+                    },
+                    end: {
+                        decode: clock$2.videoTsToSeconds(timingInfo.end.dts),
+                        presentation: clock$2.videoTsToSeconds(timingInfo.end.pts)
+                    },
+                    baseMediaDecodeTime: clock$2.videoTsToSeconds(timingInfo.baseMediaDecodeTime)
+                };
+                if (timingInfo.prependedContentDuration) {
+                    videoSegmentTimingInfo.prependedContentDuration = clock$2.videoTsToSeconds(timingInfo.prependedContentDuration);
+                }
+                self.postMessage({
+                    action: 'videoSegmentTimingInfo',
+                    videoSegmentTimingInfo
+                });
+            });
+            transmuxer.on('audioSegmentTimingInfo', function (timingInfo) {
+                // Note that all times for [audio/video]SegmentTimingInfo events are in video clock
+                const audioSegmentTimingInfo = {
+                    start: {
+                        decode: clock$2.videoTsToSeconds(timingInfo.start.dts),
+                        presentation: clock$2.videoTsToSeconds(timingInfo.start.pts)
+                    },
+                    end: {
+                        decode: clock$2.videoTsToSeconds(timingInfo.end.dts),
+                        presentation: clock$2.videoTsToSeconds(timingInfo.end.pts)
+                    },
+                    baseMediaDecodeTime: clock$2.videoTsToSeconds(timingInfo.baseMediaDecodeTime)
+                };
+                if (timingInfo.prependedContentDuration) {
+                    audioSegmentTimingInfo.prependedContentDuration = clock$2.videoTsToSeconds(timingInfo.prependedContentDuration);
+                }
+                self.postMessage({
+                    action: 'audioSegmentTimingInfo',
+                    audioSegmentTimingInfo
+                });
+            });
+            transmuxer.on('id3Frame', function (id3Frame) {
+                self.postMessage({
+                    action: 'id3Frame',
+                    id3Frame
+                });
+            });
+            transmuxer.on('caption', function (caption) {
+                self.postMessage({
+                    action: 'caption',
+                    caption
+                });
+            });
+            transmuxer.on('trackinfo', function (trackInfo) {
+                self.postMessage({
+                    action: 'trackinfo',
+                    trackInfo
+                });
+            });
+            transmuxer.on('audioTimingInfo', function (audioTimingInfo) {
+                // convert to video TS since we prioritize video time over audio
+                self.postMessage({
+                    action: 'audioTimingInfo',
+                    audioTimingInfo: {
+                        start: clock$2.videoTsToSeconds(audioTimingInfo.start),
+                        end: clock$2.videoTsToSeconds(audioTimingInfo.end)
+                    }
+                });
+            });
+            transmuxer.on('videoTimingInfo', function (videoTimingInfo) {
+                self.postMessage({
+                    action: 'videoTimingInfo',
+                    videoTimingInfo: {
+                        start: clock$2.videoTsToSeconds(videoTimingInfo.start),
+                        end: clock$2.videoTsToSeconds(videoTimingInfo.end)
+                    }
+                });
+            });
+            transmuxer.on('log', function (log) {
+                self.postMessage({
+                    action: 'log',
+                    log
+                });
+            });
+        };
+        /**
+         * All incoming messages route through this hash. If no function exists
+         * to handle an incoming message, then we ignore the message.
+         *
+         * @class MessageHandlers
+         * @param {Object} options the options to initialize with
+         */
+
+        class MessageHandlers {
+            constructor(self, options) {
+                this.options = options || {};
+                this.self = self;
+                this.init();
+            }
+            /**
+             * initialize our web worker and wire all the events.
+             */
+
+            init() {
+                if (this.transmuxer) {
+                    this.transmuxer.dispose();
+                }
+                this.transmuxer = new transmuxer.Transmuxer(this.options);
+                wireTransmuxerEvents(this.self, this.transmuxer);
+            }
+            pushMp4Captions(data) {
+                if (!this.captionParser) {
+                    this.captionParser = new captionParser();
+                    this.captionParser.init();
+                }
+                const segment = new Uint8Array(data.data, data.byteOffset, data.byteLength);
+                const parsed = this.captionParser.parse(segment, data.trackIds, data.timescales);
+                this.self.postMessage({
+                    action: 'mp4Captions',
+                    captions: parsed && parsed.captions || [],
+                    logs: parsed && parsed.logs || [],
+                    data: segment.buffer
+                }, [segment.buffer]);
+            }
+            probeMp4StartTime({
+                                  timescales,
+                                  data
+                              }) {
+                const startTime = probe$2.startTime(timescales, data);
+                this.self.postMessage({
+                    action: 'probeMp4StartTime',
+                    startTime,
+                    data
+                }, [data.buffer]);
+            }
+            probeMp4Tracks({
+                               data
+                           }) {
+                const tracks = probe$2.tracks(data);
+                this.self.postMessage({
+                    action: 'probeMp4Tracks',
+                    tracks,
+                    data
+                }, [data.buffer]);
+            }
+            /**
+             * Probe an mpeg2-ts segment to determine the start time of the segment in it's
+             * internal "media time," as well as whether it contains video and/or audio.
+             *
+             * @private
+             * @param {Uint8Array} bytes - segment bytes
+             * @param {number} baseStartTime
+             *        Relative reference timestamp used when adjusting frame timestamps for rollover.
+             *        This value should be in seconds, as it's converted to a 90khz clock within the
+             *        function body.
+             * @return {Object} The start time of the current segment in "media time" as well as
+             *                  whether it contains video and/or audio
+             */
+
+            probeTs({
+                        data,
+                        baseStartTime
+                    }) {
+                const tsStartTime = typeof baseStartTime === 'number' && !isNaN(baseStartTime) ? baseStartTime * clock$2.ONE_SECOND_IN_TS : void 0;
+                const timeInfo = tsInspector.inspect(data, tsStartTime);
+                let result = null;
+                if (timeInfo) {
+                    result = {
+                        // each type's time info comes back as an array of 2 times, start and end
+                        hasVideo: timeInfo.video && timeInfo.video.length === 2 || false,
+                        hasAudio: timeInfo.audio && timeInfo.audio.length === 2 || false
+                    };
+                    if (result.hasVideo) {
+                        result.videoStart = timeInfo.video[0].ptsTime;
+                    }
+                    if (result.hasAudio) {
+                        result.audioStart = timeInfo.audio[0].ptsTime;
+                    }
+                }
+                this.self.postMessage({
+                    action: 'probeTs',
+                    result,
+                    data
+                }, [data.buffer]);
+            }
+            clearAllMp4Captions() {
+                if (this.captionParser) {
+                    this.captionParser.clearAllCaptions();
+                }
+            }
+            clearParsedMp4Captions() {
+                if (this.captionParser) {
+                    this.captionParser.clearParsedCaptions();
+                }
+            }
+            /**
+             * Adds data (a ts segment) to the start of the transmuxer pipeline for
+             * processing.
+             *
+             * @param {ArrayBuffer} data data to push into the muxer
+             */
+
+            push(data) {
+                // Cast array buffer to correct type for transmuxer
+                const segment = new Uint8Array(data.data, data.byteOffset, data.byteLength);
+                this.transmuxer.push(segment);
+            }
+            /**
+             * Recreate the transmuxer so that the next segment added via `push`
+             * start with a fresh transmuxer.
+             */
+
+            reset() {
+                this.transmuxer.reset();
+            }
+            /**
+             * Set the value that will be used as the `baseMediaDecodeTime` time for the
+             * next segment pushed in. Subsequent segments will have their `baseMediaDecodeTime`
+             * set relative to the first based on the PTS values.
+             *
+             * @param {Object} data used to set the timestamp offset in the muxer
+             */
+
+            setTimestampOffset(data) {
+                const timestampOffset = data.timestampOffset || 0;
+                this.transmuxer.setBaseMediaDecodeTime(Math.round(clock$2.secondsToVideoTs(timestampOffset)));
+            }
+            setAudioAppendStart(data) {
+                this.transmuxer.setAudioAppendStart(Math.ceil(clock$2.secondsToVideoTs(data.appendStart)));
+            }
+            setRemux(data) {
+                this.transmuxer.setRemux(data.remux);
+            }
+            /**
+             * Forces the pipeline to finish processing the last segment and emit it's
+             * results.
+             *
+             * @param {Object} data event data, not really used
+             */
+
+            flush(data) {
+                this.transmuxer.flush(); // transmuxed done action is fired after both audio/video pipelines are flushed
+
+                self.postMessage({
+                    action: 'done',
+                    type: 'transmuxed'
+                });
+            }
+            endTimeline() {
+                this.transmuxer.endTimeline(); // transmuxed endedtimeline action is fired after both audio/video pipelines end their
+                // timelines
+
+                self.postMessage({
+                    action: 'endedtimeline',
+                    type: 'transmuxed'
+                });
+            }
+            alignGopsWith(data) {
+                this.transmuxer.alignGopsWith(data.gopsToAlignWith.slice());
+            }
+        }
+        /**
+         * Our web worker interface so that things can talk to mux.js
+         * that will be running in a web worker. the scope is passed to this by
+         * webworkify.
+         *
+         * @param {Object} self the scope for the web worker
+         */
+
+        self.onmessage = function (event) {
+            if (event.data.action === 'init' && event.data.options) {
+                this.messageHandlers = new MessageHandlers(self, event.data.options);
+                return;
+            }
+            if (!this.messageHandlers) {
+                this.messageHandlers = new MessageHandlers(self);
+            }
+            if (event.data && event.data.action && event.data.action !== 'init') {
+                if (this.messageHandlers[event.data.action]) {
+                    this.messageHandlers[event.data.action](event.data);
+                }
+            }
+        };
+    }));
+    var TransmuxWorker = factory(workerCode$1);
+    /* rollup-plugin-worker-factory end for worker!/Users/ddashkevich/projects/http-streaming/src/transmuxer-worker.js */
+
+    const handleData_ = (event, transmuxedData, callback) => {
+        const {
+            type,
+            initSegment,
+            captions,
+            captionStreams,
+            metadata,
+            videoFrameDtsTime,
+            videoFramePtsTime
+        } = event.data.segment;
+        transmuxedData.buffer.push({
+            captions,
+            captionStreams,
+            metadata
+        });
+        const boxes = event.data.segment.boxes || {
+            data: event.data.segment.data
+        };
+        const result = {
+            type,
+            // cast ArrayBuffer to TypedArray
+            data: new Uint8Array(boxes.data, boxes.data.byteOffset, boxes.data.byteLength),
+            initSegment: new Uint8Array(initSegment.data, initSegment.byteOffset, initSegment.byteLength)
+        };
+        if (typeof videoFrameDtsTime !== 'undefined') {
+            result.videoFrameDtsTime = videoFrameDtsTime;
+        }
+        if (typeof videoFramePtsTime !== 'undefined') {
+            result.videoFramePtsTime = videoFramePtsTime;
+        }
+        callback(result);
+    };
+    const handleDone_ = ({
+                             transmuxedData,
+                             callback
+                         }) => {
+        // Previously we only returned data on data events,
+        // not on done events. Clear out the buffer to keep that consistent.
+        transmuxedData.buffer = []; // all buffers should have been flushed from the muxer, so start processing anything we
+        // have received
+
+        callback(transmuxedData);
+    };
+    const handleGopInfo_ = (event, transmuxedData) => {
+        transmuxedData.gopInfo = event.data.gopInfo;
+    };
+    const processTransmux = options => {
+        const {
+            transmuxer,
+            bytes,
+            audioAppendStart,
+            gopsToAlignWith,
+            remux,
+            onData,
+            onTrackInfo,
+            onAudioTimingInfo,
+            onVideoTimingInfo,
+            onVideoSegmentTimingInfo,
+            onAudioSegmentTimingInfo,
+            onId3,
+            onCaptions,
+            onDone,
+            onEndedTimeline,
+            onTransmuxerLog,
+            isEndOfTimeline
+        } = options;
+        const transmuxedData = {
+            buffer: []
+        };
+        let waitForEndedTimelineEvent = isEndOfTimeline;
+        const handleMessage = event => {
+            if (transmuxer.currentTransmux !== options) {
+                // disposed
+                return;
+            }
+            if (event.data.action === 'data') {
+                handleData_(event, transmuxedData, onData);
+            }
+            if (event.data.action === 'trackinfo') {
+                onTrackInfo(event.data.trackInfo);
+            }
+            if (event.data.action === 'gopInfo') {
+                handleGopInfo_(event, transmuxedData);
+            }
+            if (event.data.action === 'audioTimingInfo') {
+                onAudioTimingInfo(event.data.audioTimingInfo);
+            }
+            if (event.data.action === 'videoTimingInfo') {
+                onVideoTimingInfo(event.data.videoTimingInfo);
+            }
+            if (event.data.action === 'videoSegmentTimingInfo') {
+                onVideoSegmentTimingInfo(event.data.videoSegmentTimingInfo);
+            }
+            if (event.data.action === 'audioSegmentTimingInfo') {
+                onAudioSegmentTimingInfo(event.data.audioSegmentTimingInfo);
+            }
+            if (event.data.action === 'id3Frame') {
+                onId3([event.data.id3Frame], event.data.id3Frame.dispatchType);
+            }
+            if (event.data.action === 'caption') {
+                onCaptions(event.data.caption);
+            }
+            if (event.data.action === 'endedtimeline') {
+                waitForEndedTimelineEvent = false;
+                onEndedTimeline();
+            }
+            if (event.data.action === 'log') {
+                onTransmuxerLog(event.data.log);
+            } // wait for the transmuxed event since we may have audio and video
+
+            if (event.data.type !== 'transmuxed') {
+                return;
+            } // If the "endedtimeline" event has not yet fired, and this segment represents the end
+            // of a timeline, that means there may still be data events before the segment
+            // processing can be considerred complete. In that case, the final event should be
+            // an "endedtimeline" event with the type "transmuxed."
+
+            if (waitForEndedTimelineEvent) {
+                return;
+            }
+            transmuxer.onmessage = null;
+            handleDone_({
+                transmuxedData,
+                callback: onDone
+            });
+            /* eslint-disable no-use-before-define */
+
+            dequeue(transmuxer);
+            /* eslint-enable */
+        };
+
+        transmuxer.onmessage = handleMessage;
+        if (audioAppendStart) {
+            transmuxer.postMessage({
+                action: 'setAudioAppendStart',
+                appendStart: audioAppendStart
+            });
+        } // allow empty arrays to be passed to clear out GOPs
+
+        if (Array.isArray(gopsToAlignWith)) {
+            transmuxer.postMessage({
+                action: 'alignGopsWith',
+                gopsToAlignWith
+            });
+        }
+        if (typeof remux !== 'undefined') {
+            transmuxer.postMessage({
+                action: 'setRemux',
+                remux
+            });
+        }
+        if (bytes.byteLength) {
+            const buffer = bytes instanceof ArrayBuffer ? bytes : bytes.buffer;
+            const byteOffset = bytes instanceof ArrayBuffer ? 0 : bytes.byteOffset;
+            transmuxer.postMessage({
+                action: 'push',
+                // Send the typed-array of data as an ArrayBuffer so that
+                // it can be sent as a "Transferable" and avoid the costly
+                // memory copy
+                data: buffer,
+                // To recreate the original typed-array, we need information
+                // about what portion of the ArrayBuffer it was a view into
+                byteOffset,
+                byteLength: bytes.byteLength
+            }, [buffer]);
+        }
+        if (isEndOfTimeline) {
+            transmuxer.postMessage({
+                action: 'endTimeline'
+            });
+        } // even if we didn't push any bytes, we have to make sure we flush in case we reached
+        // the end of the segment
+
+        transmuxer.postMessage({
+            action: 'flush'
+        });
+    };
+    const dequeue = transmuxer => {
+        transmuxer.currentTransmux = null;
+        if (transmuxer.transmuxQueue.length) {
+            transmuxer.currentTransmux = transmuxer.transmuxQueue.shift();
+            if (typeof transmuxer.currentTransmux === 'function') {
+                transmuxer.currentTransmux();
+            } else {
+                processTransmux(transmuxer.currentTransmux);
+            }
+        }
+    };
+    const processAction = (transmuxer, action) => {
+        transmuxer.postMessage({
+            action
+        });
+        dequeue(transmuxer);
+    };
+    const enqueueAction = (action, transmuxer) => {
+        if (!transmuxer.currentTransmux) {
+            transmuxer.currentTransmux = action;
+            processAction(transmuxer, action);
+            return;
+        }
+        transmuxer.transmuxQueue.push(processAction.bind(null, transmuxer, action));
+    };
+    const reset = transmuxer => {
+        enqueueAction('reset', transmuxer);
+    };
+    const endTimeline = transmuxer => {
+        enqueueAction('endTimeline', transmuxer);
+    };
+    const transmux = options => {
+        if (!options.transmuxer.currentTransmux) {
+            options.transmuxer.currentTransmux = options;
+            processTransmux(options);
+            return;
+        }
+        options.transmuxer.transmuxQueue.push(options);
+    };
+    const createTransmuxer = options => {
+        const transmuxer = new TransmuxWorker();
+        transmuxer.currentTransmux = null;
+        transmuxer.transmuxQueue = [];
+        const term = transmuxer.terminate;
+        transmuxer.terminate = () => {
+            transmuxer.currentTransmux = null;
+            transmuxer.transmuxQueue.length = 0;
+            return term.call(transmuxer);
+        };
+        transmuxer.postMessage({
+            action: 'init',
+            options
+        });
+        return transmuxer;
+    };
+    var segmentTransmuxer = {
+        reset,
+        endTimeline,
+        transmux,
+        createTransmuxer
+    };
+    const workerCallback = function (options) {
+        const transmuxer = options.transmuxer;
+        const endAction = options.endAction || options.action;
+        const callback = options.callback;
+        const message = _extends$1({}, options, {
+            endAction: null,
+            transmuxer: null,
+            callback: null
+        });
+        const listenForEndEvent = event => {
+            if (event.data.action !== endAction) {
+                return;
+            }
+            transmuxer.removeEventListener('message', listenForEndEvent); // transfer ownership of bytes back to us.
+
+            if (event.data.data) {
+                event.data.data = new Uint8Array(event.data.data, options.byteOffset || 0, options.byteLength || event.data.data.byteLength);
+                if (options.data) {
+                    options.data = event.data.data;
+                }
+            }
+            callback(event.data);
+        };
+        transmuxer.addEventListener('message', listenForEndEvent);
+        if (options.data) {
+            const isArrayBuffer = options.data instanceof ArrayBuffer;
+            message.byteOffset = isArrayBuffer ? 0 : options.data.byteOffset;
+            message.byteLength = options.data.byteLength;
+            const transfers = [isArrayBuffer ? options.data : options.data.buffer];
+            transmuxer.postMessage(message, transfers);
+        } else {
+            transmuxer.postMessage(message);
+        }
+    };
+    const REQUEST_ERRORS = {
+        FAILURE: 2,
+        TIMEOUT: -101,
+        ABORTED: -102
+    };
+    /**
+     * Abort all requests
+     *
+     * @param {Object} activeXhrs - an object that tracks all XHR requests
+     */
+
+    const abortAll = activeXhrs => {
+        activeXhrs.forEach(xhr => {
+            xhr.abort();
+        });
+    };
+    /**
+     * Gather important bandwidth stats once a request has completed
+     *
+     * @param {Object} request - the XHR request from which to gather stats
+     */
+
+    const getRequestStats = request => {
+        return {
+            bandwidth: request.bandwidth,
+            bytesReceived: request.bytesReceived || 0,
+            roundTripTime: request.roundTripTime || 0
+        };
+    };
+    /**
+     * If possible gather bandwidth stats as a request is in
+     * progress
+     *
+     * @param {Event} progressEvent - an event object from an XHR's progress event
+     */
+
+    const getProgressStats = progressEvent => {
+        const request = progressEvent.target;
+        const roundTripTime = Date.now() - request.requestTime;
+        const stats = {
+            bandwidth: Infinity,
+            bytesReceived: 0,
+            roundTripTime: roundTripTime || 0
+        };
+        stats.bytesReceived = progressEvent.loaded; // This can result in Infinity if stats.roundTripTime is 0 but that is ok
+        // because we should only use bandwidth stats on progress to determine when
+        // abort a request early due to insufficient bandwidth
+
+        stats.bandwidth = Math.floor(stats.bytesReceived / stats.roundTripTime * 8 * 1000);
+        return stats;
+    };
+    /**
+     * Handle all error conditions in one place and return an object
+     * with all the information
+     *
+     * @param {Error|null} error - if non-null signals an error occured with the XHR
+     * @param {Object} request -  the XHR request that possibly generated the error
+     */
+
+    const handleErrors = (error, request) => {
+        if (request.timedout) {
+            return {
+                status: request.status,
+                message: 'HLS request timed-out at URL: ' + request.uri,
+                code: REQUEST_ERRORS.TIMEOUT,
+                xhr: request
+            };
+        }
+        if (request.aborted) {
+            return {
+                status: request.status,
+                message: 'HLS request aborted at URL: ' + request.uri,
+                code: REQUEST_ERRORS.ABORTED,
+                xhr: request
+            };
+        }
+        if (error) {
+            return {
+                status: request.status,
+                message: 'HLS request errored at URL: ' + request.uri,
+                code: REQUEST_ERRORS.FAILURE,
+                xhr: request
+            };
+        }
+        if (request.responseType === 'arraybuffer' && request.response.byteLength === 0) {
+            return {
+                status: request.status,
+                message: 'Empty HLS response at URL: ' + request.uri,
+                code: REQUEST_ERRORS.FAILURE,
+                xhr: request
+            };
+        }
+        return null;
+    };
+    /**
+     * Handle responses for key data and convert the key data to the correct format
+     * for the decryption step later
+     *
+     * @param {Object} segment - a simplified copy of the segmentInfo object
+     *                           from SegmentLoader
+     * @param {Array} objects - objects to add the key bytes to.
+     * @param {Function} finishProcessingFn - a callback to execute to continue processing
+     *                                        this request
+     */
+
+    const handleKeyResponse = (segment, objects, finishProcessingFn) => (error, request) => {
+        const response = request.response;
+        const errorObj = handleErrors(error, request);
+        if (errorObj) {
+            return finishProcessingFn(errorObj, segment);
+        }
+        if (response.byteLength !== 16) {
+            return finishProcessingFn({
+                status: request.status,
+                message: 'Invalid HLS key at URL: ' + request.uri,
+                code: REQUEST_ERRORS.FAILURE,
+                xhr: request
+            }, segment);
+        }
+        const view = new DataView(response);
+        const bytes = new Uint32Array([view.getUint32(0), view.getUint32(4), view.getUint32(8), view.getUint32(12)]);
+        for (let i = 0; i < objects.length; i++) {
+            objects[i].bytes = bytes;
+        }
+        return finishProcessingFn(null, segment);
+    };
+    const parseInitSegment = (segment, callback) => {
+        const type = detectContainerForBytes(segment.map.bytes); // TODO: We should also handle ts init segments here, but we
+        // only know how to parse mp4 init segments at the moment
+
+        if (type !== 'mp4') {
+            const uri = segment.map.resolvedUri || segment.map.uri;
+            return callback({
+                internal: true,
+                message: `Found unsupported ${type || 'unknown'} container for initialization segment at URL: ${uri}`,
+                code: REQUEST_ERRORS.FAILURE
+            });
+        }
+        workerCallback({
+            action: 'probeMp4Tracks',
+            data: segment.map.bytes,
+            transmuxer: segment.transmuxer,
+            callback: ({
+                           tracks,
+                           data
+                       }) => {
+                // transfer bytes back to us
+                segment.map.bytes = data;
+                tracks.forEach(function (track) {
+                    segment.map.tracks = segment.map.tracks || {}; // only support one track of each type for now
+
+                    if (segment.map.tracks[track.type]) {
+                        return;
+                    }
+                    segment.map.tracks[track.type] = track;
+                    if (typeof track.id === 'number' && track.timescale) {
+                        segment.map.timescales = segment.map.timescales || {};
+                        segment.map.timescales[track.id] = track.timescale;
+                    }
+                });
+                return callback(null);
+            }
+        });
+    };
+    /**
+     * Handle init-segment responses
+     *
+     * @param {Object} segment - a simplified copy of the segmentInfo object
+     *                           from SegmentLoader
+     * @param {Function} finishProcessingFn - a callback to execute to continue processing
+     *                                        this request
+     */
+
+    const handleInitSegmentResponse = ({
+                                           segment,
+                                           finishProcessingFn
+                                       }) => (error, request) => {
+        const errorObj = handleErrors(error, request);
+        if (errorObj) {
+            return finishProcessingFn(errorObj, segment);
+        }
+        const bytes = new Uint8Array(request.response); // init segment is encypted, we will have to wait
+        // until the key request is done to decrypt.
+
+        if (segment.map.key) {
+            segment.map.encryptedBytes = bytes;
+            return finishProcessingFn(null, segment);
+        }
+        segment.map.bytes = bytes;
+        parseInitSegment(segment, function (parseError) {
+            if (parseError) {
+                parseError.xhr = request;
+                parseError.status = request.status;
+                return finishProcessingFn(parseError, segment);
+            }
+            finishProcessingFn(null, segment);
+        });
+    };
+    /**
+     * Response handler for segment-requests being sure to set the correct
+     * property depending on whether the segment is encryped or not
+     * Also records and keeps track of stats that are used for ABR purposes
+     *
+     * @param {Object} segment - a simplified copy of the segmentInfo object
+     *                           from SegmentLoader
+     * @param {Function} finishProcessingFn - a callback to execute to continue processing
+     *                                        this request
+     */
+
+    const handleSegmentResponse = ({
+                                       segment,
+                                       finishProcessingFn,
+                                       responseType
+                                   }) => (error, request) => {
+        const errorObj = handleErrors(error, request);
+        if (errorObj) {
+            return finishProcessingFn(errorObj, segment);
+        }
+        const newBytes =
+            // although responseText "should" exist, this guard serves to prevent an error being
+            // thrown for two primary cases:
+            // 1. the mime type override stops working, or is not implemented for a specific
+            //    browser
+            // 2. when using mock XHR libraries like sinon that do not allow the override behavior
+            responseType === 'arraybuffer' || !request.responseText ? request.response : stringToArrayBuffer(request.responseText.substring(segment.lastReachedChar || 0));
+        segment.stats = getRequestStats(request);
+        if (segment.key) {
+            segment.encryptedBytes = new Uint8Array(newBytes);
+        } else {
+            segment.bytes = new Uint8Array(newBytes);
+        }
+        return finishProcessingFn(null, segment);
+    };
+    const transmuxAndNotify = ({
+                                   segment,
+                                   bytes,
+                                   trackInfoFn,
+                                   timingInfoFn,
+                                   videoSegmentTimingInfoFn,
+                                   audioSegmentTimingInfoFn,
+                                   id3Fn,
+                                   captionsFn,
+                                   isEndOfTimeline,
+                                   endedTimelineFn,
+                                   dataFn,
+                                   doneFn,
+                                   onTransmuxerLog
+                               }) => {
+        const fmp4Tracks = segment.map && segment.map.tracks || {};
+        const isMuxed = Boolean(fmp4Tracks.audio && fmp4Tracks.video); // Keep references to each function so we can null them out after we're done with them.
+        // One reason for this is that in the case of full segments, we want to trust start
+        // times from the probe, rather than the transmuxer.
+
+        let audioStartFn = timingInfoFn.bind(null, segment, 'audio', 'start');
+        const audioEndFn = timingInfoFn.bind(null, segment, 'audio', 'end');
+        let videoStartFn = timingInfoFn.bind(null, segment, 'video', 'start');
+        const videoEndFn = timingInfoFn.bind(null, segment, 'video', 'end');
+        const finish = () => transmux({
+            bytes,
+            transmuxer: segment.transmuxer,
+            audioAppendStart: segment.audioAppendStart,
+            gopsToAlignWith: segment.gopsToAlignWith,
+            remux: isMuxed,
+            onData: result => {
+                result.type = result.type === 'combined' ? 'video' : result.type;
+                dataFn(segment, result);
+            },
+            onTrackInfo: trackInfo => {
+                if (trackInfoFn) {
+                    if (isMuxed) {
+                        trackInfo.isMuxed = true;
+                    }
+                    trackInfoFn(segment, trackInfo);
+                }
+            },
+            onAudioTimingInfo: audioTimingInfo => {
+                // we only want the first start value we encounter
+                if (audioStartFn && typeof audioTimingInfo.start !== 'undefined') {
+                    audioStartFn(audioTimingInfo.start);
+                    audioStartFn = null;
+                } // we want to continually update the end time
+
+                if (audioEndFn && typeof audioTimingInfo.end !== 'undefined') {
+                    audioEndFn(audioTimingInfo.end);
+                }
+            },
+            onVideoTimingInfo: videoTimingInfo => {
+                // we only want the first start value we encounter
+                if (videoStartFn && typeof videoTimingInfo.start !== 'undefined') {
+                    videoStartFn(videoTimingInfo.start);
+                    videoStartFn = null;
+                } // we want to continually update the end time
+
+                if (videoEndFn && typeof videoTimingInfo.end !== 'undefined') {
+                    videoEndFn(videoTimingInfo.end);
+                }
+            },
+            onVideoSegmentTimingInfo: videoSegmentTimingInfo => {
+                videoSegmentTimingInfoFn(videoSegmentTimingInfo);
+            },
+            onAudioSegmentTimingInfo: audioSegmentTimingInfo => {
+                audioSegmentTimingInfoFn(audioSegmentTimingInfo);
+            },
+            onId3: (id3Frames, dispatchType) => {
+                id3Fn(segment, id3Frames, dispatchType);
+            },
+            onCaptions: captions => {
+                captionsFn(segment, [captions]);
+            },
+            isEndOfTimeline,
+            onEndedTimeline: () => {
+                endedTimelineFn();
+            },
+            onTransmuxerLog,
+            onDone: result => {
+                if (!doneFn) {
+                    return;
+                }
+                result.type = result.type === 'combined' ? 'video' : result.type;
+                doneFn(null, segment, result);
+            }
+        }); // In the transmuxer, we don't yet have the ability to extract a "proper" start time.
+        // Meaning cached frame data may corrupt our notion of where this segment
+        // really starts. To get around this, probe for the info needed.
+
+        workerCallback({
+            action: 'probeTs',
+            transmuxer: segment.transmuxer,
+            data: bytes,
+            baseStartTime: segment.baseStartTime,
+            callback: data => {
+                segment.bytes = bytes = data.data;
+                const probeResult = data.result;
+                if (probeResult) {
+                    trackInfoFn(segment, {
+                        hasAudio: probeResult.hasAudio,
+                        hasVideo: probeResult.hasVideo,
+                        isMuxed
+                    });
+                    trackInfoFn = null;
+                    if (probeResult.hasAudio && !isMuxed) {
+                        audioStartFn(probeResult.audioStart);
+                    }
+                    if (probeResult.hasVideo) {
+                        videoStartFn(probeResult.videoStart);
+                    }
+                    audioStartFn = null;
+                    videoStartFn = null;
+                }
+                finish();
+            }
+        });
+    };
+    const handleSegmentBytes = ({
+                                    segment,
+                                    bytes,
+                                    trackInfoFn,
+                                    timingInfoFn,
+                                    videoSegmentTimingInfoFn,
+                                    audioSegmentTimingInfoFn,
+                                    id3Fn,
+                                    captionsFn,
+                                    isEndOfTimeline,
+                                    endedTimelineFn,
+                                    dataFn,
+                                    doneFn,
+                                    onTransmuxerLog
+                                }) => {
+        let bytesAsUint8Array = new Uint8Array(bytes); // TODO:
+        // We should have a handler that fetches the number of bytes required
+        // to check if something is fmp4. This will allow us to save bandwidth
+        // because we can only exclude a playlist and abort requests
+        // by codec after trackinfo triggers.
+
+        if (isLikelyFmp4MediaSegment(bytesAsUint8Array)) {
+            segment.isFmp4 = true;
+            const {
+                tracks
+            } = segment.map;
+            const trackInfo = {
+                isFmp4: true,
+                hasVideo: !!tracks.video,
+                hasAudio: !!tracks.audio
+            }; // if we have a audio track, with a codec that is not set to
+            // encrypted audio
+
+            if (tracks.audio && tracks.audio.codec && tracks.audio.codec !== 'enca') {
+                trackInfo.audioCodec = tracks.audio.codec;
+            } // if we have a video track, with a codec that is not set to
+            // encrypted video
+
+            if (tracks.video && tracks.video.codec && tracks.video.codec !== 'encv') {
+                trackInfo.videoCodec = tracks.video.codec;
+            }
+            if (tracks.video && tracks.audio) {
+                trackInfo.isMuxed = true;
+            } // since we don't support appending fmp4 data on progress, we know we have the full
+            // segment here
+
+            trackInfoFn(segment, trackInfo); // The probe doesn't provide the segment end time, so only callback with the start
+            // time. The end time can be roughly calculated by the receiver using the duration.
+            //
+            // Note that the start time returned by the probe reflects the baseMediaDecodeTime, as
+            // that is the true start of the segment (where the playback engine should begin
+            // decoding).
+
+            const finishLoading = captions => {
+                // if the track still has audio at this point it is only possible
+                // for it to be audio only. See `tracks.video && tracks.audio` if statement
+                // above.
+                // we make sure to use segment.bytes here as that
+                dataFn(segment, {
+                    data: bytesAsUint8Array,
+                    type: trackInfo.hasAudio && !trackInfo.isMuxed ? 'audio' : 'video'
+                });
+                if (captions && captions.length) {
+                    captionsFn(segment, captions);
+                }
+                doneFn(null, segment, {});
+            };
+            workerCallback({
+                action: 'probeMp4StartTime',
+                timescales: segment.map.timescales,
+                data: bytesAsUint8Array,
+                transmuxer: segment.transmuxer,
+                callback: ({
+                               data,
+                               startTime
+                           }) => {
+                    // transfer bytes back to us
+                    bytes = data.buffer;
+                    segment.bytes = bytesAsUint8Array = data;
+                    if (trackInfo.hasAudio && !trackInfo.isMuxed) {
+                        timingInfoFn(segment, 'audio', 'start', startTime);
+                    }
+                    if (trackInfo.hasVideo) {
+                        timingInfoFn(segment, 'video', 'start', startTime);
+                    } // Run through the CaptionParser in case there are captions.
+                    // Initialize CaptionParser if it hasn't been yet
+
+                    if (!tracks.video || !data.byteLength || !segment.transmuxer) {
+                        finishLoading();
+                        return;
+                    }
+                    workerCallback({
+                        action: 'pushMp4Captions',
+                        endAction: 'mp4Captions',
+                        transmuxer: segment.transmuxer,
+                        data: bytesAsUint8Array,
+                        timescales: segment.map.timescales,
+                        trackIds: [tracks.video.id],
+                        callback: message => {
+                            // transfer bytes back to us
+                            bytes = message.data.buffer;
+                            segment.bytes = bytesAsUint8Array = message.data;
+                            message.logs.forEach(function (log) {
+                                onTransmuxerLog(merge(log, {
+                                    stream: 'mp4CaptionParser'
+                                }));
+                            });
+                            finishLoading(message.captions);
+                        }
+                    });
+                }
+            });
+            return;
+        } // VTT or other segments that don't need processing
+
+        if (!segment.transmuxer) {
+            doneFn(null, segment, {});
+            return;
+        }
+        if (typeof segment.container === 'undefined') {
+            segment.container = detectContainerForBytes(bytesAsUint8Array);
+        }
+        if (segment.container !== 'ts' && segment.container !== 'aac') {
+            trackInfoFn(segment, {
+                hasAudio: false,
+                hasVideo: false
+            });
+            doneFn(null, segment, {});
+            return;
+        } // ts or aac
+
+        transmuxAndNotify({
+            segment,
+            bytes,
+            trackInfoFn,
+            timingInfoFn,
+            videoSegmentTimingInfoFn,
+            audioSegmentTimingInfoFn,
+            id3Fn,
+            captionsFn,
+            isEndOfTimeline,
+            endedTimelineFn,
+            dataFn,
+            doneFn,
+            onTransmuxerLog
+        });
+    };
+    const decrypt = function ({
+                                  id,
+                                  key,
+                                  encryptedBytes,
+                                  decryptionWorker
+                              }, callback) {
+        const decryptionHandler = event => {
+            if (event.data.source === id) {
+                decryptionWorker.removeEventListener('message', decryptionHandler);
+                const decrypted = event.data.decrypted;
+                callback(new Uint8Array(decrypted.bytes, decrypted.byteOffset, decrypted.byteLength));
+            }
+        };
+        decryptionWorker.addEventListener('message', decryptionHandler);
+        let keyBytes;
+        if (key.bytes.slice) {
+            keyBytes = key.bytes.slice();
+        } else {
+            keyBytes = new Uint32Array(Array.prototype.slice.call(key.bytes));
+        } // incrementally decrypt the bytes
+
+        decryptionWorker.postMessage(createTransferableMessage({
+            source: id,
+            encrypted: encryptedBytes,
+            key: keyBytes,
+            iv: key.iv
+        }), [encryptedBytes.buffer, keyBytes.buffer]);
+    };
+    /**
+     * Decrypt the segment via the decryption web worker
+     *
+     * @param {WebWorker} decryptionWorker - a WebWorker interface to AES-128 decryption
+     *                                       routines
+     * @param {Object} segment - a simplified copy of the segmentInfo object
+     *                           from SegmentLoader
+     * @param {Function} trackInfoFn - a callback that receives track info
+     * @param {Function} timingInfoFn - a callback that receives timing info
+     * @param {Function} videoSegmentTimingInfoFn
+     *                   a callback that receives video timing info based on media times and
+     *                   any adjustments made by the transmuxer
+     * @param {Function} audioSegmentTimingInfoFn
+     *                   a callback that receives audio timing info based on media times and
+     *                   any adjustments made by the transmuxer
+     * @param {boolean}  isEndOfTimeline
+     *                   true if this segment represents the last segment in a timeline
+     * @param {Function} endedTimelineFn
+     *                   a callback made when a timeline is ended, will only be called if
+     *                   isEndOfTimeline is true
+     * @param {Function} dataFn - a callback that is executed when segment bytes are available
+     *                            and ready to use
+     * @param {Function} doneFn - a callback that is executed after decryption has completed
+     */
+
+    const decryptSegment = ({
+                                decryptionWorker,
+                                segment,
+                                trackInfoFn,
+                                timingInfoFn,
+                                videoSegmentTimingInfoFn,
+                                audioSegmentTimingInfoFn,
+                                id3Fn,
+                                captionsFn,
+                                isEndOfTimeline,
+                                endedTimelineFn,
+                                dataFn,
+                                doneFn,
+                                onTransmuxerLog
+                            }) => {
+        decrypt({
+            id: segment.requestId,
+            key: segment.key,
+            encryptedBytes: segment.encryptedBytes,
+            decryptionWorker
+        }, decryptedBytes => {
+            segment.bytes = decryptedBytes;
+            handleSegmentBytes({
+                segment,
+                bytes: segment.bytes,
+                trackInfoFn,
+                timingInfoFn,
+                videoSegmentTimingInfoFn,
+                audioSegmentTimingInfoFn,
+                id3Fn,
+                captionsFn,
+                isEndOfTimeline,
+                endedTimelineFn,
+                dataFn,
+                doneFn,
+                onTransmuxerLog
+            });
+        });
+    };
+    /**
+     * This function waits for all XHRs to finish (with either success or failure)
+     * before continueing processing via it's callback. The function gathers errors
+     * from each request into a single errors array so that the error status for
+     * each request can be examined later.
+     *
+     * @param {Object} activeXhrs - an object that tracks all XHR requests
+     * @param {WebWorker} decryptionWorker - a WebWorker interface to AES-128 decryption
+     *                                       routines
+     * @param {Function} trackInfoFn - a callback that receives track info
+     * @param {Function} timingInfoFn - a callback that receives timing info
+     * @param {Function} videoSegmentTimingInfoFn
+     *                   a callback that receives video timing info based on media times and
+     *                   any adjustments made by the transmuxer
+     * @param {Function} audioSegmentTimingInfoFn
+     *                   a callback that receives audio timing info based on media times and
+     *                   any adjustments made by the transmuxer
+     * @param {Function} id3Fn - a callback that receives ID3 metadata
+     * @param {Function} captionsFn - a callback that receives captions
+     * @param {boolean}  isEndOfTimeline
+     *                   true if this segment represents the last segment in a timeline
+     * @param {Function} endedTimelineFn
+     *                   a callback made when a timeline is ended, will only be called if
+     *                   isEndOfTimeline is true
+     * @param {Function} dataFn - a callback that is executed when segment bytes are available
+     *                            and ready to use
+     * @param {Function} doneFn - a callback that is executed after all resources have been
+     *                            downloaded and any decryption completed
+     */
+
+    const waitForCompletion = ({
+                                   activeXhrs,
+                                   decryptionWorker,
+                                   trackInfoFn,
+                                   timingInfoFn,
+                                   videoSegmentTimingInfoFn,
+                                   audioSegmentTimingInfoFn,
+                                   id3Fn,
+                                   captionsFn,
+                                   isEndOfTimeline,
+                                   endedTimelineFn,
+                                   dataFn,
+                                   doneFn,
+                                   onTransmuxerLog
+                               }) => {
+        let count = 0;
+        let didError = false;
+        return (error, segment) => {
+            if (didError) {
+                return;
+            }
+            if (error) {
+                didError = true; // If there are errors, we have to abort any outstanding requests
+
+                abortAll(activeXhrs); // Even though the requests above are aborted, and in theory we could wait until we
+                // handle the aborted events from those requests, there are some cases where we may
+                // never get an aborted event. For instance, if the network connection is lost and
+                // there were two requests, the first may have triggered an error immediately, while
+                // the second request remains unsent. In that case, the aborted algorithm will not
+                // trigger an abort: see https://xhr.spec.whatwg.org/#the-abort()-method
+                //
+                // We also can't rely on the ready state of the XHR, since the request that
+                // triggered the connection error may also show as a ready state of 0 (unsent).
+                // Therefore, we have to finish this group of requests immediately after the first
+                // seen error.
+
+                return doneFn(error, segment);
+            }
+            count += 1;
+            if (count === activeXhrs.length) {
+                const segmentFinish = function () {
+                    if (segment.encryptedBytes) {
+                        return decryptSegment({
+                            decryptionWorker,
+                            segment,
+                            trackInfoFn,
+                            timingInfoFn,
+                            videoSegmentTimingInfoFn,
+                            audioSegmentTimingInfoFn,
+                            id3Fn,
+                            captionsFn,
+                            isEndOfTimeline,
+                            endedTimelineFn,
+                            dataFn,
+                            doneFn,
+                            onTransmuxerLog
+                        });
+                    } // Otherwise, everything is ready just continue
+
+                    handleSegmentBytes({
+                        segment,
+                        bytes: segment.bytes,
+                        trackInfoFn,
+                        timingInfoFn,
+                        videoSegmentTimingInfoFn,
+                        audioSegmentTimingInfoFn,
+                        id3Fn,
+                        captionsFn,
+                        isEndOfTimeline,
+                        endedTimelineFn,
+                        dataFn,
+                        doneFn,
+                        onTransmuxerLog
+                    });
+                }; // Keep track of when *all* of the requests have completed
+
+                segment.endOfAllRequests = Date.now();
+                if (segment.map && segment.map.encryptedBytes && !segment.map.bytes) {
+                    return decrypt({
+                        decryptionWorker,
+                        // add -init to the "id" to differentiate between segment
+                        // and init segment decryption, just in case they happen
+                        // at the same time at some point in the future.
+                        id: segment.requestId + '-init',
+                        encryptedBytes: segment.map.encryptedBytes,
+                        key: segment.map.key
+                    }, decryptedBytes => {
+                        segment.map.bytes = decryptedBytes;
+                        parseInitSegment(segment, parseError => {
+                            if (parseError) {
+                                abortAll(activeXhrs);
+                                return doneFn(parseError, segment);
+                            }
+                            segmentFinish();
+                        });
+                    });
+                }
+                segmentFinish();
+            }
+        };
+    };
+    /**
+     * Calls the abort callback if any request within the batch was aborted. Will only call
+     * the callback once per batch of requests, even if multiple were aborted.
+     *
+     * @param {Object} loadendState - state to check to see if the abort function was called
+     * @param {Function} abortFn - callback to call for abort
+     */
+
+    const handleLoadEnd = ({
+                               loadendState,
+                               abortFn
+                           }) => event => {
+        const request = event.target;
+        if (request.aborted && abortFn && !loadendState.calledAbortFn) {
+            abortFn();
+            loadendState.calledAbortFn = true;
+        }
+    };
+    /**
+     * Simple progress event callback handler that gathers some stats before
+     * executing a provided callback with the `segment` object
+     *
+     * @param {Object} segment - a simplified copy of the segmentInfo object
+     *                           from SegmentLoader
+     * @param {Function} progressFn - a callback that is executed each time a progress event
+     *                                is received
+     * @param {Function} trackInfoFn - a callback that receives track info
+     * @param {Function} timingInfoFn - a callback that receives timing info
+     * @param {Function} videoSegmentTimingInfoFn
+     *                   a callback that receives video timing info based on media times and
+     *                   any adjustments made by the transmuxer
+     * @param {Function} audioSegmentTimingInfoFn
+     *                   a callback that receives audio timing info based on media times and
+     *                   any adjustments made by the transmuxer
+     * @param {boolean}  isEndOfTimeline
+     *                   true if this segment represents the last segment in a timeline
+     * @param {Function} endedTimelineFn
+     *                   a callback made when a timeline is ended, will only be called if
+     *                   isEndOfTimeline is true
+     * @param {Function} dataFn - a callback that is executed when segment bytes are available
+     *                            and ready to use
+     * @param {Event} event - the progress event object from XMLHttpRequest
+     */
+
+    const handleProgress = ({
+                                segment,
+                                progressFn,
+                                trackInfoFn,
+                                timingInfoFn,
+                                videoSegmentTimingInfoFn,
+                                audioSegmentTimingInfoFn,
+                                id3Fn,
+                                captionsFn,
+                                isEndOfTimeline,
+                                endedTimelineFn,
+                                dataFn
+                            }) => event => {
+        const request = event.target;
+        if (request.aborted) {
+            return;
+        }
+        segment.stats = merge(segment.stats, getProgressStats(event)); // record the time that we receive the first byte of data
+
+        if (!segment.stats.firstBytesReceivedAt && segment.stats.bytesReceived) {
+            segment.stats.firstBytesReceivedAt = Date.now();
+        }
+        return progressFn(event, segment);
+    };
+    /**
+     * Load all resources and does any processing necessary for a media-segment
+     *
+     * Features:
+     *   decrypts the media-segment if it has a key uri and an iv
+     *   aborts *all* requests if *any* one request fails
+     *
+     * The segment object, at minimum, has the following format:
+     * {
+     *   resolvedUri: String,
+     *   [transmuxer]: Object,
+     *   [byterange]: {
+     *     offset: Number,
+     *     length: Number
+     *   },
+     *   [key]: {
+     *     resolvedUri: String
+     *     [byterange]: {
+     *       offset: Number,
+     *       length: Number
+     *     },
+     *     iv: {
+     *       bytes: Uint32Array
+     *     }
+     *   },
+     *   [map]: {
+     *     resolvedUri: String,
+     *     [byterange]: {
+     *       offset: Number,
+     *       length: Number
+     *     },
+     *     [bytes]: Uint8Array
+     *   }
+     * }
+     * ...where [name] denotes optional properties
+     *
+     * @param {Function} xhr - an instance of the xhr wrapper in xhr.js
+     * @param {Object} xhrOptions - the base options to provide to all xhr requests
+     * @param {WebWorker} decryptionWorker - a WebWorker interface to AES-128
+     *                                       decryption routines
+     * @param {Object} segment - a simplified copy of the segmentInfo object
+     *                           from SegmentLoader
+     * @param {Function} abortFn - a callback called (only once) if any piece of a request was
+     *                             aborted
+     * @param {Function} progressFn - a callback that receives progress events from the main
+     *                                segment's xhr request
+     * @param {Function} trackInfoFn - a callback that receives track info
+     * @param {Function} timingInfoFn - a callback that receives timing info
+     * @param {Function} videoSegmentTimingInfoFn
+     *                   a callback that receives video timing info based on media times and
+     *                   any adjustments made by the transmuxer
+     * @param {Function} audioSegmentTimingInfoFn
+     *                   a callback that receives audio timing info based on media times and
+     *                   any adjustments made by the transmuxer
+     * @param {Function} id3Fn - a callback that receives ID3 metadata
+     * @param {Function} captionsFn - a callback that receives captions
+     * @param {boolean}  isEndOfTimeline
+     *                   true if this segment represents the last segment in a timeline
+     * @param {Function} endedTimelineFn
+     *                   a callback made when a timeline is ended, will only be called if
+     *                   isEndOfTimeline is true
+     * @param {Function} dataFn - a callback that receives data from the main segment's xhr
+     *                            request, transmuxed if needed
+     * @param {Function} doneFn - a callback that is executed only once all requests have
+     *                            succeeded or failed
+     * @return {Function} a function that, when invoked, immediately aborts all
+     *                     outstanding requests
+     */
+
+    const mediaSegmentRequest = ({
+                                     xhr,
+                                     xhrOptions,
+                                     decryptionWorker,
+                                     segment,
+                                     abortFn,
+                                     progressFn,
+                                     trackInfoFn,
+                                     timingInfoFn,
+                                     videoSegmentTimingInfoFn,
+                                     audioSegmentTimingInfoFn,
+                                     id3Fn,
+                                     captionsFn,
+                                     isEndOfTimeline,
+                                     endedTimelineFn,
+                                     dataFn,
+                                     doneFn,
+                                     onTransmuxerLog
+                                 }) => {
+        const activeXhrs = [];
+        const finishProcessingFn = waitForCompletion({
+            activeXhrs,
+            decryptionWorker,
+            trackInfoFn,
+            timingInfoFn,
+            videoSegmentTimingInfoFn,
+            audioSegmentTimingInfoFn,
+            id3Fn,
+            captionsFn,
+            isEndOfTimeline,
+            endedTimelineFn,
+            dataFn,
+            doneFn,
+            onTransmuxerLog
+        }); // optionally, request the decryption key
+
+        if (segment.key && !segment.key.bytes) {
+            const objects = [segment.key];
+            if (segment.map && !segment.map.bytes && segment.map.key && segment.map.key.resolvedUri === segment.key.resolvedUri) {
+                objects.push(segment.map.key);
+            }
+            const keyRequestOptions = merge(xhrOptions, {
+                uri: segment.key.resolvedUri,
+                responseType: 'arraybuffer'
+            });
+            const keyRequestCallback = handleKeyResponse(segment, objects, finishProcessingFn);
+            const keyXhr = xhr(keyRequestOptions, keyRequestCallback);
+            activeXhrs.push(keyXhr);
+        } // optionally, request the associated media init segment
+
+        if (segment.map && !segment.map.bytes) {
+            const differentMapKey = segment.map.key && (!segment.key || segment.key.resolvedUri !== segment.map.key.resolvedUri);
+            if (differentMapKey) {
+                const mapKeyRequestOptions = merge(xhrOptions, {
+                    uri: segment.map.key.resolvedUri,
+                    responseType: 'arraybuffer'
+                });
+                const mapKeyRequestCallback = handleKeyResponse(segment, [segment.map.key], finishProcessingFn);
+                const mapKeyXhr = xhr(mapKeyRequestOptions, mapKeyRequestCallback);
+                activeXhrs.push(mapKeyXhr);
+            }
+            const initSegmentOptions = merge(xhrOptions, {
+                uri: segment.map.resolvedUri,
+                responseType: 'arraybuffer',
+                headers: segmentXhrHeaders(segment.map)
+            });
+            const initSegmentRequestCallback = handleInitSegmentResponse({
+                segment,
+                finishProcessingFn
+            });
+            const initSegmentXhr = xhr(initSegmentOptions, initSegmentRequestCallback);
+            activeXhrs.push(initSegmentXhr);
+        }
+        const segmentRequestOptions = merge(xhrOptions, {
+            uri: segment.part && segment.part.resolvedUri || segment.resolvedUri,
+            responseType: 'arraybuffer',
+            headers: segmentXhrHeaders(segment)
+        });
+        const segmentRequestCallback = handleSegmentResponse({
+            segment,
+            finishProcessingFn,
+            responseType: segmentRequestOptions.responseType
+        });
+        const segmentXhr = xhr(segmentRequestOptions, segmentRequestCallback);
+        segmentXhr.addEventListener('progress', handleProgress({
+            segment,
+            progressFn,
+            trackInfoFn,
+            timingInfoFn,
+            videoSegmentTimingInfoFn,
+            audioSegmentTimingInfoFn,
+            id3Fn,
+            captionsFn,
+            isEndOfTimeline,
+            endedTimelineFn,
+            dataFn
+        }));
+        activeXhrs.push(segmentXhr); // since all parts of the request must be considered, but should not make callbacks
+        // multiple times, provide a shared state object
+
+        const loadendState = {};
+        activeXhrs.forEach(activeXhr => {
+            activeXhr.addEventListener('loadend', handleLoadEnd({
+                loadendState,
+                abortFn
+            }));
+        });
+        return () => abortAll(activeXhrs);
+    };
+
+    /**
+     * @file - codecs.js - Handles tasks regarding codec strings such as translating them to
+     * codec strings, or translating codec strings into objects that can be examined.
+     */
+    const logFn$1 = logger('CodecUtils');
+    /**
+     * Returns a set of codec strings parsed from the playlist or the default
+     * codec strings if no codecs were specified in the playlist
+     *
+     * @param {Playlist} media the current media playlist
+     * @return {Object} an object with the video and audio codecs
+     */
+
+    const getCodecs = function (media) {
+        // if the codecs were explicitly specified, use them instead of the
+        // defaults
+        const mediaAttributes = media.attributes || {};
+        if (mediaAttributes.CODECS) {
+            return parseCodecs(mediaAttributes.CODECS);
+        }
+    };
+    const isMaat = (main, media) => {
+        const mediaAttributes = media.attributes || {};
+        return main && main.mediaGroups && main.mediaGroups.AUDIO && mediaAttributes.AUDIO && main.mediaGroups.AUDIO[mediaAttributes.AUDIO];
+    };
+    const isMuxed = (main, media) => {
+        if (!isMaat(main, media)) {
+            return true;
+        }
+        const mediaAttributes = media.attributes || {};
+        const audioGroup = main.mediaGroups.AUDIO[mediaAttributes.AUDIO];
+        for (const groupId in audioGroup) {
+            // If an audio group has a URI (the case for HLS, as HLS will use external playlists),
+            // or there are listed playlists (the case for DASH, as the manifest will have already
+            // provided all of the details necessary to generate the audio playlist, as opposed to
+            // HLS' externally requested playlists), then the content is demuxed.
+            if (!audioGroup[groupId].uri && !audioGroup[groupId].playlists) {
+                return true;
+            }
+        }
+        return false;
+    };
+    const unwrapCodecList = function (codecList) {
+        const codecs = {};
+        codecList.forEach(({
+                               mediaType,
+                               type,
+                               details
+                           }) => {
+            codecs[mediaType] = codecs[mediaType] || [];
+            codecs[mediaType].push(translateLegacyCodec(`${type}${details}`));
+        });
+        Object.keys(codecs).forEach(function (mediaType) {
+            if (codecs[mediaType].length > 1) {
+                logFn$1(`multiple ${mediaType} codecs found as attributes: ${codecs[mediaType].join(', ')}. Setting playlist codecs to null so that we wait for mux.js to probe segments for real codecs.`);
+                codecs[mediaType] = null;
+                return;
+            }
+            codecs[mediaType] = codecs[mediaType][0];
+        });
+        return codecs;
+    };
+    const codecCount = function (codecObj) {
+        let count = 0;
+        if (codecObj.audio) {
+            count++;
+        }
+        if (codecObj.video) {
+            count++;
+        }
+        return count;
+    };
+    /**
+     * Calculates the codec strings for a working configuration of
+     * SourceBuffers to play variant streams in a main playlist. If
+     * there is no possible working configuration, an empty object will be
+     * returned.
+     *
+     * @param main {Object} the m3u8 object for the main playlist
+     * @param media {Object} the m3u8 object for the variant playlist
+     * @return {Object} the codec strings.
+     *
+     * @private
+     */
+
+    const codecsForPlaylist = function (main, media) {
+        const mediaAttributes = media.attributes || {};
+        const codecInfo = unwrapCodecList(getCodecs(media) || []); // HLS with multiple-audio tracks must always get an audio codec.
+        // Put another way, there is no way to have a video-only multiple-audio HLS!
+
+        if (isMaat(main, media) && !codecInfo.audio) {
+            if (!isMuxed(main, media)) {
+                // It is possible for codecs to be specified on the audio media group playlist but
+                // not on the rendition playlist. This is mostly the case for DASH, where audio and
+                // video are always separate (and separately specified).
+                const defaultCodecs = unwrapCodecList(codecsFromDefault(main, mediaAttributes.AUDIO) || []);
+                if (defaultCodecs.audio) {
+                    codecInfo.audio = defaultCodecs.audio;
+                }
+            }
+        }
+        return codecInfo;
+    };
+    const logFn = logger('PlaylistSelector');
+    const representationToString = function (representation) {
+        if (!representation || !representation.playlist) {
+            return;
+        }
+        const playlist = representation.playlist;
+        return JSON.stringify({
+            id: playlist.id,
+            bandwidth: representation.bandwidth,
+            width: representation.width,
+            height: representation.height,
+            codecs: playlist.attributes && playlist.attributes.CODECS || ''
+        });
+    }; // Utilities
+
+    /**
+     * Returns the CSS value for the specified property on an element
+     * using `getComputedStyle`. Firefox has a long-standing issue where
+     * getComputedStyle() may return null when running in an iframe with
+     * `display: none`.
+     *
+     * @see https://bugzilla.mozilla.org/show_bug.cgi?id=548397
+     * @param {HTMLElement} el the htmlelement to work on
+     * @param {string} the proprety to get the style for
+     */
+
+    const safeGetComputedStyle = function (el, property) {
+        if (!el) {
+            return '';
+        }
+        const result = window.getComputedStyle(el);
+        if (!result) {
+            return '';
+        }
+        return result[property];
+    };
+    /**
+     * Resuable stable sort function
+     *
+     * @param {Playlists} array
+     * @param {Function} sortFn Different comparators
+     * @function stableSort
+     */
+
+    const stableSort = function (array, sortFn) {
+        const newArray = array.slice();
+        array.sort(function (left, right) {
+            const cmp = sortFn(left, right);
+            if (cmp === 0) {
+                return newArray.indexOf(left) - newArray.indexOf(right);
+            }
+            return cmp;
+        });
+    };
+    /**
+     * A comparator function to sort two playlist object by bandwidth.
+     *
+     * @param {Object} left a media playlist object
+     * @param {Object} right a media playlist object
+     * @return {number} Greater than zero if the bandwidth attribute of
+     * left is greater than the corresponding attribute of right. Less
+     * than zero if the bandwidth of right is greater than left and
+     * exactly zero if the two are equal.
+     */
+
+    const comparePlaylistBandwidth = function (left, right) {
+        let leftBandwidth;
+        let rightBandwidth;
+        if (left.attributes.BANDWIDTH) {
+            leftBandwidth = left.attributes.BANDWIDTH;
+        }
+        leftBandwidth = leftBandwidth || window.Number.MAX_VALUE;
+        if (right.attributes.BANDWIDTH) {
+            rightBandwidth = right.attributes.BANDWIDTH;
+        }
+        rightBandwidth = rightBandwidth || window.Number.MAX_VALUE;
+        return leftBandwidth - rightBandwidth;
+    };
+    /**
+     * A comparator function to sort two playlist object by resolution (width).
+     *
+     * @param {Object} left a media playlist object
+     * @param {Object} right a media playlist object
+     * @return {number} Greater than zero if the resolution.width attribute of
+     * left is greater than the corresponding attribute of right. Less
+     * than zero if the resolution.width of right is greater than left and
+     * exactly zero if the two are equal.
+     */
+
+    const comparePlaylistResolution = function (left, right) {
+        let leftWidth;
+        let rightWidth;
+        if (left.attributes.RESOLUTION && left.attributes.RESOLUTION.width) {
+            leftWidth = left.attributes.RESOLUTION.width;
+        }
+        leftWidth = leftWidth || window.Number.MAX_VALUE;
+        if (right.attributes.RESOLUTION && right.attributes.RESOLUTION.width) {
+            rightWidth = right.attributes.RESOLUTION.width;
+        }
+        rightWidth = rightWidth || window.Number.MAX_VALUE; // NOTE - Fallback to bandwidth sort as appropriate in cases where multiple renditions
+        // have the same media dimensions/ resolution
+
+        if (leftWidth === rightWidth && left.attributes.BANDWIDTH && right.attributes.BANDWIDTH) {
+            return left.attributes.BANDWIDTH - right.attributes.BANDWIDTH;
+        }
+        return leftWidth - rightWidth;
+    };
+    /**
+     * Chooses the appropriate media playlist based on bandwidth and player size
+     *
+     * @param {Object} main
+     *        Object representation of the main manifest
+     * @param {number} playerBandwidth
+     *        Current calculated bandwidth of the player
+     * @param {number} playerWidth
+     *        Current width of the player element (should account for the device pixel ratio)
+     * @param {number} playerHeight
+     *        Current height of the player element (should account for the device pixel ratio)
+     * @param {boolean} limitRenditionByPlayerDimensions
+     *        True if the player width and height should be used during the selection, false otherwise
+     * @param {Object} playlistController
+     *        the current playlistController object
+     * @return {Playlist} the highest bitrate playlist less than the
+     * currently detected bandwidth, accounting for some amount of
+     * bandwidth variance
+     */
+
+    let simpleSelector = function (main, playerBandwidth, playerWidth, playerHeight, limitRenditionByPlayerDimensions, playlistController) {
+        // If we end up getting called before `main` is available, exit early
+        if (!main) {
+            return;
+        }
+        const options = {
+            bandwidth: playerBandwidth,
+            width: playerWidth,
+            height: playerHeight,
+            limitRenditionByPlayerDimensions
+        };
+        let playlists = main.playlists; // if playlist is audio only, select between currently active audio group playlists.
+
+        if (Playlist.isAudioOnly(main)) {
+            playlists = playlistController.getAudioTrackPlaylists_(); // add audioOnly to options so that we log audioOnly: true
+            // at the buttom of this function for debugging.
+
+            options.audioOnly = true;
+        } // convert the playlists to an intermediary representation to make comparisons easier
+
+        let sortedPlaylistReps = playlists.map(playlist => {
+            let bandwidth;
+            const width = playlist.attributes && playlist.attributes.RESOLUTION && playlist.attributes.RESOLUTION.width;
+            const height = playlist.attributes && playlist.attributes.RESOLUTION && playlist.attributes.RESOLUTION.height;
+            bandwidth = playlist.attributes && playlist.attributes.BANDWIDTH;
+            bandwidth = bandwidth || window.Number.MAX_VALUE;
+            return {
+                bandwidth,
+                width,
+                height,
+                playlist
+            };
+        });
+        stableSort(sortedPlaylistReps, (left, right) => left.bandwidth - right.bandwidth); // filter out any playlists that have been excluded due to
+        // incompatible configurations
+
+        sortedPlaylistReps = sortedPlaylistReps.filter(rep => !Playlist.isIncompatible(rep.playlist)); // filter out any playlists that have been disabled manually through the representations
+        // api or excluded temporarily due to playback errors.
+
+        let enabledPlaylistReps = sortedPlaylistReps.filter(rep => Playlist.isEnabled(rep.playlist));
+        if (!enabledPlaylistReps.length) {
+            // if there are no enabled playlists, then they have all been excluded or disabled
+            // by the user through the representations api. In this case, ignore exclusion and
+            // fallback to what the user wants by using playlists the user has not disabled.
+            enabledPlaylistReps = sortedPlaylistReps.filter(rep => !Playlist.isDisabled(rep.playlist));
+        } // filter out any variant that has greater effective bitrate
+        // than the current estimated bandwidth
+
+        const bandwidthPlaylistReps = enabledPlaylistReps.filter(rep => rep.bandwidth * Config.BANDWIDTH_VARIANCE < playerBandwidth);
+        let highestRemainingBandwidthRep = bandwidthPlaylistReps[bandwidthPlaylistReps.length - 1]; // get all of the renditions with the same (highest) bandwidth
+        // and then taking the very first element
+
+        const bandwidthBestRep = bandwidthPlaylistReps.filter(rep => rep.bandwidth === highestRemainingBandwidthRep.bandwidth)[0]; // if we're not going to limit renditions by player size, make an early decision.
+
+        if (limitRenditionByPlayerDimensions === false) {
+            const chosenRep = bandwidthBestRep || enabledPlaylistReps[0] || sortedPlaylistReps[0];
+            if (chosenRep && chosenRep.playlist) {
+                let type = 'sortedPlaylistReps';
+                if (bandwidthBestRep) {
+                    type = 'bandwidthBestRep';
+                }
+                if (enabledPlaylistReps[0]) {
+                    type = 'enabledPlaylistReps';
+                }
+                logFn(`choosing ${representationToString(chosenRep)} using ${type} with options`, options);
+                return chosenRep.playlist;
+            }
+            logFn('could not choose a playlist with options', options);
+            return null;
+        } // filter out playlists without resolution information
+
+        const haveResolution = bandwidthPlaylistReps.filter(rep => rep.width && rep.height); // sort variants by resolution
+
+        stableSort(haveResolution, (left, right) => left.width - right.width); // if we have the exact resolution as the player use it
+
+        const resolutionBestRepList = haveResolution.filter(rep => rep.width === playerWidth && rep.height === playerHeight);
+        highestRemainingBandwidthRep = resolutionBestRepList[resolutionBestRepList.length - 1]; // ensure that we pick the highest bandwidth variant that have exact resolution
+
+        const resolutionBestRep = resolutionBestRepList.filter(rep => rep.bandwidth === highestRemainingBandwidthRep.bandwidth)[0];
+        let resolutionPlusOneList;
+        let resolutionPlusOneSmallest;
+        let resolutionPlusOneRep; // find the smallest variant that is larger than the player
+        // if there is no match of exact resolution
+
+        if (!resolutionBestRep) {
+            resolutionPlusOneList = haveResolution.filter(rep => rep.width > playerWidth || rep.height > playerHeight); // find all the variants have the same smallest resolution
+
+            resolutionPlusOneSmallest = resolutionPlusOneList.filter(rep => rep.width === resolutionPlusOneList[0].width && rep.height === resolutionPlusOneList[0].height); // ensure that we also pick the highest bandwidth variant that
+            // is just-larger-than the video player
+
+            highestRemainingBandwidthRep = resolutionPlusOneSmallest[resolutionPlusOneSmallest.length - 1];
+            resolutionPlusOneRep = resolutionPlusOneSmallest.filter(rep => rep.bandwidth === highestRemainingBandwidthRep.bandwidth)[0];
+        }
+        let leastPixelDiffRep; // If this selector proves to be better than others,
+        // resolutionPlusOneRep and resolutionBestRep and all
+        // the code involving them should be removed.
+
+        if (playlistController.leastPixelDiffSelector) {
+            // find the variant that is closest to the player's pixel size
+            const leastPixelDiffList = haveResolution.map(rep => {
+                rep.pixelDiff = Math.abs(rep.width - playerWidth) + Math.abs(rep.height - playerHeight);
+                return rep;
+            }); // get the highest bandwidth, closest resolution playlist
+
+            stableSort(leastPixelDiffList, (left, right) => {
+                // sort by highest bandwidth if pixelDiff is the same
+                if (left.pixelDiff === right.pixelDiff) {
+                    return right.bandwidth - left.bandwidth;
+                }
+                return left.pixelDiff - right.pixelDiff;
+            });
+            leastPixelDiffRep = leastPixelDiffList[0];
+        } // fallback chain of variants
+
+        const chosenRep = leastPixelDiffRep || resolutionPlusOneRep || resolutionBestRep || bandwidthBestRep || enabledPlaylistReps[0] || sortedPlaylistReps[0];
+        if (chosenRep && chosenRep.playlist) {
+            let type = 'sortedPlaylistReps';
+            if (leastPixelDiffRep) {
+                type = 'leastPixelDiffRep';
+            } else if (resolutionPlusOneRep) {
+                type = 'resolutionPlusOneRep';
+            } else if (resolutionBestRep) {
+                type = 'resolutionBestRep';
+            } else if (bandwidthBestRep) {
+                type = 'bandwidthBestRep';
+            } else if (enabledPlaylistReps[0]) {
+                type = 'enabledPlaylistReps';
+            }
+            logFn(`choosing ${representationToString(chosenRep)} using ${type} with options`, options);
+            return chosenRep.playlist;
+        }
+        logFn('could not choose a playlist with options', options);
+        return null;
+    };
+
+    /**
+     * Chooses the appropriate media playlist based on the most recent
+     * bandwidth estimate and the player size.
+     *
+     * Expects to be called within the context of an instance of VhsHandler
+     *
+     * @return {Playlist} the highest bitrate playlist less than the
+     * currently detected bandwidth, accounting for some amount of
+     * bandwidth variance
+     */
+
+    const lastBandwidthSelector = function () {
+        const pixelRatio = this.useDevicePixelRatio ? window.devicePixelRatio || 1 : 1;
+        return simpleSelector(this.playlists.main, this.systemBandwidth, parseInt(safeGetComputedStyle(this.tech_.el(), 'width'), 10) * pixelRatio, parseInt(safeGetComputedStyle(this.tech_.el(), 'height'), 10) * pixelRatio, this.limitRenditionByPlayerDimensions, this.playlistController_);
+    };
+    /**
+     * Chooses the appropriate media playlist based on an
+     * exponential-weighted moving average of the bandwidth after
+     * filtering for player size.
+     *
+     * Expects to be called within the context of an instance of VhsHandler
+     *
+     * @param {number} decay - a number between 0 and 1. Higher values of
+     * this parameter will cause previous bandwidth estimates to lose
+     * significance more quickly.
+     * @return {Function} a function which can be invoked to create a new
+     * playlist selector function.
+     * @see https://en.wikipedia.org/wiki/Moving_average#Exponential_moving_average
+     */
+
+    const movingAverageBandwidthSelector = function (decay) {
+        let average = -1;
+        let lastSystemBandwidth = -1;
+        if (decay < 0 || decay > 1) {
+            throw new Error('Moving average bandwidth decay must be between 0 and 1.');
+        }
+        return function () {
+            const pixelRatio = this.useDevicePixelRatio ? window.devicePixelRatio || 1 : 1;
+            if (average < 0) {
+                average = this.systemBandwidth;
+                lastSystemBandwidth = this.systemBandwidth;
+            } // stop the average value from decaying for every 250ms
+            // when the systemBandwidth is constant
+            // and
+            // stop average from setting to a very low value when the
+            // systemBandwidth becomes 0 in case of chunk cancellation
+
+            if (this.systemBandwidth > 0 && this.systemBandwidth !== lastSystemBandwidth) {
+                average = decay * this.systemBandwidth + (1 - decay) * average;
+                lastSystemBandwidth = this.systemBandwidth;
+            }
+            return simpleSelector(this.playlists.main, average, parseInt(safeGetComputedStyle(this.tech_.el(), 'width'), 10) * pixelRatio, parseInt(safeGetComputedStyle(this.tech_.el(), 'height'), 10) * pixelRatio, this.limitRenditionByPlayerDimensions, this.playlistController_);
+        };
+    };
+    /**
+     * Chooses the appropriate media playlist based on the potential to rebuffer
+     *
+     * @param {Object} settings
+     *        Object of information required to use this selector
+     * @param {Object} settings.main
+     *        Object representation of the main manifest
+     * @param {number} settings.currentTime
+     *        The current time of the player
+     * @param {number} settings.bandwidth
+     *        Current measured bandwidth
+     * @param {number} settings.duration
+     *        Duration of the media
+     * @param {number} settings.segmentDuration
+     *        Segment duration to be used in round trip time calculations
+     * @param {number} settings.timeUntilRebuffer
+     *        Time left in seconds until the player has to rebuffer
+     * @param {number} settings.currentTimeline
+     *        The current timeline segments are being loaded from
+     * @param {SyncController} settings.syncController
+     *        SyncController for determining if we have a sync point for a given playlist
+     * @return {Object|null}
+     *         {Object} return.playlist
+     *         The highest bandwidth playlist with the least amount of rebuffering
+     *         {Number} return.rebufferingImpact
+     *         The amount of time in seconds switching to this playlist will rebuffer. A
+     *         negative value means that switching will cause zero rebuffering.
+     */
+
+    const minRebufferMaxBandwidthSelector = function (settings) {
+        const {
+            main,
+            currentTime,
+            bandwidth,
+            duration,
+            segmentDuration,
+            timeUntilRebuffer,
+            currentTimeline,
+            syncController
+        } = settings; // filter out any playlists that have been excluded due to
+        // incompatible configurations
+
+        const compatiblePlaylists = main.playlists.filter(playlist => !Playlist.isIncompatible(playlist)); // filter out any playlists that have been disabled manually through the representations
+        // api or excluded temporarily due to playback errors.
+
+        let enabledPlaylists = compatiblePlaylists.filter(Playlist.isEnabled);
+        if (!enabledPlaylists.length) {
+            // if there are no enabled playlists, then they have all been excluded or disabled
+            // by the user through the representations api. In this case, ignore exclusion and
+            // fallback to what the user wants by using playlists the user has not disabled.
+            enabledPlaylists = compatiblePlaylists.filter(playlist => !Playlist.isDisabled(playlist));
+        }
+        const bandwidthPlaylists = enabledPlaylists.filter(Playlist.hasAttribute.bind(null, 'BANDWIDTH'));
+        const rebufferingEstimates = bandwidthPlaylists.map(playlist => {
+            const syncPoint = syncController.getSyncPoint(playlist, duration, currentTimeline, currentTime); // If there is no sync point for this playlist, switching to it will require a
+            // sync request first. This will double the request time
+
+            const numRequests = syncPoint ? 1 : 2;
+            const requestTimeEstimate = Playlist.estimateSegmentRequestTime(segmentDuration, bandwidth, playlist);
+            const rebufferingImpact = requestTimeEstimate * numRequests - timeUntilRebuffer;
+            return {
+                playlist,
+                rebufferingImpact
+            };
+        });
+        const noRebufferingPlaylists = rebufferingEstimates.filter(estimate => estimate.rebufferingImpact <= 0); // Sort by bandwidth DESC
+
+        stableSort(noRebufferingPlaylists, (a, b) => comparePlaylistBandwidth(b.playlist, a.playlist));
+        if (noRebufferingPlaylists.length) {
+            return noRebufferingPlaylists[0];
+        }
+        stableSort(rebufferingEstimates, (a, b) => a.rebufferingImpact - b.rebufferingImpact);
+        return rebufferingEstimates[0] || null;
+    };
+    /**
+     * Chooses the appropriate media playlist, which in this case is the lowest bitrate
+     * one with video.  If no renditions with video exist, return the lowest audio rendition.
+     *
+     * Expects to be called within the context of an instance of VhsHandler
+     *
+     * @return {Object|null}
+     *         {Object} return.playlist
+     *         The lowest bitrate playlist that contains a video codec.  If no such rendition
+     *         exists pick the lowest audio rendition.
+     */
+
+    const lowestBitrateCompatibleVariantSelector = function () {
+        // filter out any playlists that have been excluded due to
+        // incompatible configurations or playback errors
+        const playlists = this.playlists.main.playlists.filter(Playlist.isEnabled); // Sort ascending by bitrate
+
+        stableSort(playlists, (a, b) => comparePlaylistBandwidth(a, b)); // Parse and assume that playlists with no video codec have no video
+        // (this is not necessarily true, although it is generally true).
+        //
+        // If an entire manifest has no valid videos everything will get filtered
+        // out.
+
+        const playlistsWithVideo = playlists.filter(playlist => !!codecsForPlaylist(this.playlists.main, playlist).video);
+        return playlistsWithVideo[0] || null;
+    };
+
+    /**
+     * Combine all segments into a single Uint8Array
+     *
+     * @param {Object} segmentObj
+     * @return {Uint8Array} concatenated bytes
+     * @private
+     */
+    const concatSegments = segmentObj => {
+        let offset = 0;
+        let tempBuffer;
+        if (segmentObj.bytes) {
+            tempBuffer = new Uint8Array(segmentObj.bytes); // combine the individual segments into one large typed-array
+
+            segmentObj.segments.forEach(segment => {
+                tempBuffer.set(segment, offset);
+                offset += segment.byteLength;
+            });
+        }
+        return tempBuffer;
+    };
+
+    /**
+     * @file text-tracks.js
+     */
+    /**
+     * Create captions text tracks on video.js if they do not exist
+     *
+     * @param {Object} inbandTextTracks a reference to current inbandTextTracks
+     * @param {Object} tech the video.js tech
+     * @param {Object} captionStream the caption stream to create
+     * @private
+     */
+
+    const createCaptionsTrackIfNotExists = function (inbandTextTracks, tech, captionStream) {
+        if (!inbandTextTracks[captionStream]) {
+            tech.trigger({
+                type: 'usage',
+                name: 'vhs-608'
+            });
+            let instreamId = captionStream; // we need to translate SERVICEn for 708 to how mux.js currently labels them
+
+            if (/^cc708_/.test(captionStream)) {
+                instreamId = 'SERVICE' + captionStream.split('_')[1];
+            }
+            const track = tech.textTracks().getTrackById(instreamId);
+            if (track) {
+                // Resuse an existing track with a CC# id because this was
+                // very likely created by videojs-contrib-hls from information
+                // in the m3u8 for us to use
+                inbandTextTracks[captionStream] = track;
+            } else {
+                // This section gets called when we have caption services that aren't specified in the manifest.
+                // Manifest level caption services are handled in media-groups.js under CLOSED-CAPTIONS.
+                const captionServices = tech.options_.vhs && tech.options_.vhs.captionServices || {};
+                let label = captionStream;
+                let language = captionStream;
+                let def = false;
+                const captionService = captionServices[instreamId];
+                if (captionService) {
+                    label = captionService.label;
+                    language = captionService.language;
+                    def = captionService.default;
+                } // Otherwise, create a track with the default `CC#` label and
+                // without a language
+
+                inbandTextTracks[captionStream] = tech.addRemoteTextTrack({
+                    kind: 'captions',
+                    id: instreamId,
+                    // TODO: investigate why this doesn't seem to turn the caption on by default
+                    default: def,
+                    label,
+                    language
+                }, false).track;
+            }
+        }
+    };
+    /**
+     * Add caption text track data to a source handler given an array of captions
+     *
+     * @param {Object}
+     *   @param {Object} inbandTextTracks the inband text tracks
+     *   @param {number} timestampOffset the timestamp offset of the source buffer
+     *   @param {Array} captionArray an array of caption data
+     * @private
+     */
+
+    const addCaptionData = function ({
+                                         inbandTextTracks,
+                                         captionArray,
+                                         timestampOffset
+                                     }) {
+        if (!captionArray) {
+            return;
+        }
+        const Cue = window.WebKitDataCue || window.VTTCue;
+        captionArray.forEach(caption => {
+            const track = caption.stream;
+            inbandTextTracks[track].addCue(new Cue(caption.startTime + timestampOffset, caption.endTime + timestampOffset, caption.text));
+        });
+    };
+    /**
+     * Define properties on a cue for backwards compatability,
+     * but warn the user that the way that they are using it
+     * is depricated and will be removed at a later date.
+     *
+     * @param {Cue} cue the cue to add the properties on
+     * @private
+     */
+
+    const deprecateOldCue = function (cue) {
+        Object.defineProperties(cue.frame, {
+            id: {
+                get() {
+                    videojs.log.warn('cue.frame.id is deprecated. Use cue.value.key instead.');
+                    return cue.value.key;
+                }
+            },
+            value: {
+                get() {
+                    videojs.log.warn('cue.frame.value is deprecated. Use cue.value.data instead.');
+                    return cue.value.data;
+                }
+            },
+            privateData: {
+                get() {
+                    videojs.log.warn('cue.frame.privateData is deprecated. Use cue.value.data instead.');
+                    return cue.value.data;
+                }
+            }
+        });
+    };
+    /**
+     * Add metadata text track data to a source handler given an array of metadata
+     *
+     * @param {Object}
+     *   @param {Object} inbandTextTracks the inband text tracks
+     *   @param {Array} metadataArray an array of meta data
+     *   @param {number} timestampOffset the timestamp offset of the source buffer
+     *   @param {number} videoDuration the duration of the video
+     * @private
+     */
+
+    const addMetadata = ({
+                             inbandTextTracks,
+                             metadataArray,
+                             timestampOffset,
+                             videoDuration
+                         }) => {
+        if (!metadataArray) {
+            return;
+        }
+        const Cue = window.WebKitDataCue || window.VTTCue;
+        const metadataTrack = inbandTextTracks.metadataTrack_;
+        if (!metadataTrack) {
+            return;
+        }
+        metadataArray.forEach(metadata => {
+            const time = metadata.cueTime + timestampOffset; // if time isn't a finite number between 0 and Infinity, like NaN,
+            // ignore this bit of metadata.
+            // This likely occurs when you have an non-timed ID3 tag like TIT2,
+            // which is the "Title/Songname/Content description" frame
+
+            if (typeof time !== 'number' || window.isNaN(time) || time < 0 || !(time < Infinity)) {
+                return;
+            }
+            metadata.frames.forEach(frame => {
+                const cue = new Cue(time, time, frame.value || frame.url || frame.data || '');
+                cue.frame = frame;
+                cue.value = frame;
+                deprecateOldCue(cue);
+                metadataTrack.addCue(cue);
+            });
+        });
+        if (!metadataTrack.cues || !metadataTrack.cues.length) {
+            return;
+        } // Updating the metadeta cues so that
+        // the endTime of each cue is the startTime of the next cue
+        // the endTime of last cue is the duration of the video
+
+        const cues = metadataTrack.cues;
+        const cuesArray = []; // Create a copy of the TextTrackCueList...
+        // ...disregarding cues with a falsey value
+
+        for (let i = 0; i < cues.length; i++) {
+            if (cues[i]) {
+                cuesArray.push(cues[i]);
+            }
+        } // Group cues by their startTime value
+
+        const cuesGroupedByStartTime = cuesArray.reduce((obj, cue) => {
+            const timeSlot = obj[cue.startTime] || [];
+            timeSlot.push(cue);
+            obj[cue.startTime] = timeSlot;
+            return obj;
+        }, {}); // Sort startTimes by ascending order
+
+        const sortedStartTimes = Object.keys(cuesGroupedByStartTime).sort((a, b) => Number(a) - Number(b)); // Map each cue group's endTime to the next group's startTime
+
+        sortedStartTimes.forEach((startTime, idx) => {
+            const cueGroup = cuesGroupedByStartTime[startTime];
+            const nextTime = Number(sortedStartTimes[idx + 1]) || videoDuration; // Map each cue's endTime the next group's startTime
+
+            cueGroup.forEach(cue => {
+                cue.endTime = nextTime;
+            });
+        });
+    };
+    /**
+     * Create metadata text track on video.js if it does not exist
+     *
+     * @param {Object} inbandTextTracks a reference to current inbandTextTracks
+     * @param {string} dispatchType the inband metadata track dispatch type
+     * @param {Object} tech the video.js tech
+     * @private
+     */
+
+    const createMetadataTrackIfNotExists = (inbandTextTracks, dispatchType, tech) => {
+        if (inbandTextTracks.metadataTrack_) {
+            return;
+        }
+        inbandTextTracks.metadataTrack_ = tech.addRemoteTextTrack({
+            kind: 'metadata',
+            label: 'Timed Metadata'
+        }, false).track;
+        inbandTextTracks.metadataTrack_.inBandMetadataTrackDispatchType = dispatchType;
+    };
+    /**
+     * Remove cues from a track on video.js.
+     *
+     * @param {Double} start start of where we should remove the cue
+     * @param {Double} end end of where the we should remove the cue
+     * @param {Object} track the text track to remove the cues from
+     * @private
+     */
+
+    const removeCuesFromTrack = function (start, end, track) {
+        let i;
+        let cue;
+        if (!track) {
+            return;
+        }
+        if (!track.cues) {
+            return;
+        }
+        i = track.cues.length;
+        while (i--) {
+            cue = track.cues[i]; // Remove any cue within the provided start and end time
+
+            if (cue.startTime >= start && cue.endTime <= end) {
+                track.removeCue(cue);
+            }
+        }
+    };
+    /**
+     * Remove duplicate cues from a track on video.js (a cue is considered a
+     * duplicate if it has the same time interval and text as another)
+     *
+     * @param {Object} track the text track to remove the duplicate cues from
+     * @private
+     */
+
+    const removeDuplicateCuesFromTrack = function (track) {
+        const cues = track.cues;
+        if (!cues) {
+            return;
+        }
+        for (let i = 0; i < cues.length; i++) {
+            const duplicates = [];
+            let occurrences = 0;
+            for (let j = 0; j < cues.length; j++) {
+                if (cues[i].startTime === cues[j].startTime && cues[i].endTime === cues[j].endTime && cues[i].text === cues[j].text) {
+                    occurrences++;
+                    if (occurrences > 1) {
+                        duplicates.push(cues[j]);
+                    }
+                }
+            }
+            if (duplicates.length) {
+                duplicates.forEach(dupe => track.removeCue(dupe));
+            }
+        }
+    };
+
+    /**
+     * Returns a list of gops in the buffer that have a pts value of 3 seconds or more in
+     * front of current time.
+     *
+     * @param {Array} buffer
+     *        The current buffer of gop information
+     * @param {number} currentTime
+     *        The current time
+     * @param {Double} mapping
+     *        Offset to map display time to stream presentation time
+     * @return {Array}
+     *         List of gops considered safe to append over
+     */
+
+    const gopsSafeToAlignWith = (buffer, currentTime, mapping) => {
+        if (typeof currentTime === 'undefined' || currentTime === null || !buffer.length) {
+            return [];
+        } // pts value for current time + 3 seconds to give a bit more wiggle room
+
+        const currentTimePts = Math.ceil((currentTime - mapping + 3) * clock_1);
+        let i;
+        for (i = 0; i < buffer.length; i++) {
+            if (buffer[i].pts > currentTimePts) {
+                break;
+            }
+        }
+        return buffer.slice(i);
+    };
+    /**
+     * Appends gop information (timing and byteLength) received by the transmuxer for the
+     * gops appended in the last call to appendBuffer
+     *
+     * @param {Array} buffer
+     *        The current buffer of gop information
+     * @param {Array} gops
+     *        List of new gop information
+     * @param {boolean} replace
+     *        If true, replace the buffer with the new gop information. If false, append the
+     *        new gop information to the buffer in the right location of time.
+     * @return {Array}
+     *         Updated list of gop information
+     */
+
+    const updateGopBuffer = (buffer, gops, replace) => {
+        if (!gops.length) {
+            return buffer;
+        }
+        if (replace) {
+            // If we are in safe append mode, then completely overwrite the gop buffer
+            // with the most recent appeneded data. This will make sure that when appending
+            // future segments, we only try to align with gops that are both ahead of current
+            // time and in the last segment appended.
+            return gops.slice();
+        }
+        const start = gops[0].pts;
+        let i = 0;
+        for (i; i < buffer.length; i++) {
+            if (buffer[i].pts >= start) {
+                break;
+            }
+        }
+        return buffer.slice(0, i).concat(gops);
+    };
+    /**
+     * Removes gop information in buffer that overlaps with provided start and end
+     *
+     * @param {Array} buffer
+     *        The current buffer of gop information
+     * @param {Double} start
+     *        position to start the remove at
+     * @param {Double} end
+     *        position to end the remove at
+     * @param {Double} mapping
+     *        Offset to map display time to stream presentation time
+     */
+
+    const removeGopBuffer = (buffer, start, end, mapping) => {
+        const startPts = Math.ceil((start - mapping) * clock_1);
+        const endPts = Math.ceil((end - mapping) * clock_1);
+        const updatedBuffer = buffer.slice();
+        let i = buffer.length;
+        while (i--) {
+            if (buffer[i].pts <= endPts) {
+                break;
+            }
+        }
+        if (i === -1) {
+            // no removal because end of remove range is before start of buffer
+            return updatedBuffer;
+        }
+        let j = i + 1;
+        while (j--) {
+            if (buffer[j].pts <= startPts) {
+                break;
+            }
+        } // clamp remove range start to 0 index
+
+        j = Math.max(j, 0);
+        updatedBuffer.splice(j, i - j + 1);
+        return updatedBuffer;
+    };
+    const shallowEqual = function (a, b) {
+        // if both are undefined
+        // or one or the other is undefined
+        // they are not equal
+        if (!a && !b || !a && b || a && !b) {
+            return false;
+        } // they are the same object and thus, equal
+
+        if (a === b) {
+            return true;
+        } // sort keys so we can make sure they have
+        // all the same keys later.
+
+        const akeys = Object.keys(a).sort();
+        const bkeys = Object.keys(b).sort(); // different number of keys, not equal
+
+        if (akeys.length !== bkeys.length) {
+            return false;
+        }
+        for (let i = 0; i < akeys.length; i++) {
+            const key = akeys[i]; // different sorted keys, not equal
+
+            if (key !== bkeys[i]) {
+                return false;
+            } // different values, not equal
+
+            if (a[key] !== b[key]) {
+                return false;
+            }
+        }
+        return true;
+    };
+
+    // https://www.w3.org/TR/WebIDL-1/#quotaexceedederror
+    const QUOTA_EXCEEDED_ERR = 22;
+
+    /**
+     * The segment loader has no recourse except to fetch a segment in the
+     * current playlist and use the internal timestamps in that segment to
+     * generate a syncPoint. This function returns a good candidate index
+     * for that process.
+     *
+     * @param {Array} segments - the segments array from a playlist.
+     * @return {number} An index of a segment from the playlist to load
+     */
+
+    const getSyncSegmentCandidate = function (currentTimeline, segments, targetTime) {
+        segments = segments || [];
+        const timelineSegments = [];
+        let time = 0;
+        for (let i = 0; i < segments.length; i++) {
+            const segment = segments[i];
+            if (currentTimeline === segment.timeline) {
+                timelineSegments.push(i);
+                time += segment.duration;
+                if (time > targetTime) {
+                    return i;
+                }
+            }
+        }
+        if (timelineSegments.length === 0) {
+            return 0;
+        } // default to the last timeline segment
+
+        return timelineSegments[timelineSegments.length - 1];
+    }; // In the event of a quota exceeded error, keep at least one second of back buffer. This
+    // number was arbitrarily chosen and may be updated in the future, but seemed reasonable
+    // as a start to prevent any potential issues with removing content too close to the
+    // playhead.
+
+    const MIN_BACK_BUFFER = 1; // in ms
+
+    const CHECK_BUFFER_DELAY = 500;
+    const finite = num => typeof num === 'number' && isFinite(num); // With most content hovering around 30fps, if a segment has a duration less than a half
+    // frame at 30fps or one frame at 60fps, the bandwidth and throughput calculations will
+    // not accurately reflect the rest of the content.
+
+    const MIN_SEGMENT_DURATION_TO_SAVE_STATS = 1 / 60;
+    const illegalMediaSwitch = (loaderType, startingMedia, trackInfo) => {
+        // Although these checks should most likely cover non 'main' types, for now it narrows
+        // the scope of our checks.
+        if (loaderType !== 'main' || !startingMedia || !trackInfo) {
+            return null;
+        }
+        if (!trackInfo.hasAudio && !trackInfo.hasVideo) {
+            return 'Neither audio nor video found in segment.';
+        }
+        if (startingMedia.hasVideo && !trackInfo.hasVideo) {
+            return 'Only audio found in segment when we expected video.' + ' We can\'t switch to audio only from a stream that had video.' + ' To get rid of this message, please add codec information to the manifest.';
+        }
+        if (!startingMedia.hasVideo && trackInfo.hasVideo) {
+            return 'Video found in segment when we expected only audio.' + ' We can\'t switch to a stream with video from an audio only stream.' + ' To get rid of this message, please add codec information to the manifest.';
+        }
+        return null;
+    };
+    /**
+     * Calculates a time value that is safe to remove from the back buffer without interrupting
+     * playback.
+     *
+     * @param {TimeRange} seekable
+     *        The current seekable range
+     * @param {number} currentTime
+     *        The current time of the player
+     * @param {number} targetDuration
+     *        The target duration of the current playlist
+     * @return {number}
+     *         Time that is safe to remove from the back buffer without interrupting playback
+     */
+
+    const safeBackBufferTrimTime = (seekable, currentTime, targetDuration) => {
+        // 30 seconds before the playhead provides a safe default for trimming.
+        //
+        // Choosing a reasonable default is particularly important for high bitrate content and
+        // VOD videos/live streams with large windows, as the buffer may end up overfilled and
+        // throw an APPEND_BUFFER_ERR.
+        let trimTime = currentTime - Config.BACK_BUFFER_LENGTH;
+        if (seekable.length) {
+            // Some live playlists may have a shorter window of content than the full allowed back
+            // buffer. For these playlists, don't save content that's no longer within the window.
+            trimTime = Math.max(trimTime, seekable.start(0));
+        } // Don't remove within target duration of the current time to avoid the possibility of
+        // removing the GOP currently being played, as removing it can cause playback stalls.
+
+        const maxTrimTime = currentTime - targetDuration;
+        return Math.min(maxTrimTime, trimTime);
+    };
+    const segmentInfoString = segmentInfo => {
+        const {
+            startOfSegment,
+            duration,
+            segment,
+            part,
+            playlist: {
+                mediaSequence: seq,
+                id,
+                segments = []
+            },
+            mediaIndex: index,
+            partIndex,
+            timeline
+        } = segmentInfo;
+        const segmentLen = segments.length - 1;
+        let selection = 'mediaIndex/partIndex increment';
+        if (segmentInfo.getMediaInfoForTime) {
+            selection = `getMediaInfoForTime (${segmentInfo.getMediaInfoForTime})`;
+        } else if (segmentInfo.isSyncRequest) {
+            selection = 'getSyncSegmentCandidate (isSyncRequest)';
+        }
+        if (segmentInfo.independent) {
+            selection += ` with independent ${segmentInfo.independent}`;
+        }
+        const hasPartIndex = typeof partIndex === 'number';
+        const name = segmentInfo.segment.uri ? 'segment' : 'pre-segment';
+        const zeroBasedPartCount = hasPartIndex ? getKnownPartCount({
+            preloadSegment: segment
+        }) - 1 : 0;
+        return `${name} [${seq + index}/${seq + segmentLen}]` + (hasPartIndex ? ` part [${partIndex}/${zeroBasedPartCount}]` : '') + ` segment start/end [${segment.start} => ${segment.end}]` + (hasPartIndex ? ` part start/end [${part.start} => ${part.end}]` : '') + ` startOfSegment [${startOfSegment}]` + ` duration [${duration}]` + ` timeline [${timeline}]` + ` selected by [${selection}]` + ` playlist [${id}]`;
+    };
+    const timingInfoPropertyForMedia = mediaType => `${mediaType}TimingInfo`;
+    /**
+     * Returns the timestamp offset to use for the segment.
+     *
+     * @param {number} segmentTimeline
+     *        The timeline of the segment
+     * @param {number} currentTimeline
+     *        The timeline currently being followed by the loader
+     * @param {number} startOfSegment
+     *        The estimated segment start
+     * @param {TimeRange[]} buffered
+     *        The loader's buffer
+     * @param {boolean} overrideCheck
+     *        If true, no checks are made to see if the timestamp offset value should be set,
+     *        but sets it directly to a value.
+     *
+     * @return {number|null}
+     *         Either a number representing a new timestamp offset, or null if the segment is
+     *         part of the same timeline
+     */
+
+    const timestampOffsetForSegment = ({
+                                           segmentTimeline,
+                                           currentTimeline,
+                                           startOfSegment,
+                                           buffered,
+                                           overrideCheck
+                                       }) => {
+        // Check to see if we are crossing a discontinuity to see if we need to set the
+        // timestamp offset on the transmuxer and source buffer.
+        //
+        // Previously, we changed the timestampOffset if the start of this segment was less than
+        // the currently set timestampOffset, but this isn't desirable as it can produce bad
+        // behavior, especially around long running live streams.
+        if (!overrideCheck && segmentTimeline === currentTimeline) {
+            return null;
+        } // When changing renditions, it's possible to request a segment on an older timeline. For
+        // instance, given two renditions with the following:
+        //
+        // #EXTINF:10
+        // segment1
+        // #EXT-X-DISCONTINUITY
+        // #EXTINF:10
+        // segment2
+        // #EXTINF:10
+        // segment3
+        //
+        // And the current player state:
+        //
+        // current time: 8
+        // buffer: 0 => 20
+        //
+        // The next segment on the current rendition would be segment3, filling the buffer from
+        // 20s onwards. However, if a rendition switch happens after segment2 was requested,
+        // then the next segment to be requested will be segment1 from the new rendition in
+        // order to fill time 8 and onwards. Using the buffered end would result in repeated
+        // content (since it would position segment1 of the new rendition starting at 20s). This
+        // case can be identified when the new segment's timeline is a prior value. Instead of
+        // using the buffered end, the startOfSegment can be used, which, hopefully, will be
+        // more accurate to the actual start time of the segment.
+
+        if (segmentTimeline < currentTimeline) {
+            return startOfSegment;
+        } // segmentInfo.startOfSegment used to be used as the timestamp offset, however, that
+        // value uses the end of the last segment if it is available. While this value
+        // should often be correct, it's better to rely on the buffered end, as the new
+        // content post discontinuity should line up with the buffered end as if it were
+        // time 0 for the new content.
+
+        return buffered.length ? buffered.end(buffered.length - 1) : startOfSegment;
+    };
+    /**
+     * Returns whether or not the loader should wait for a timeline change from the timeline
+     * change controller before processing the segment.
+     *
+     * Primary timing in VHS goes by video. This is different from most media players, as
+     * audio is more often used as the primary timing source. For the foreseeable future, VHS
+     * will continue to use video as the primary timing source, due to the current logic and
+     * expectations built around it.
+
+     * Since the timing follows video, in order to maintain sync, the video loader is
+     * responsible for setting both audio and video source buffer timestamp offsets.
+     *
+     * Setting different values for audio and video source buffers could lead to
+     * desyncing. The following examples demonstrate some of the situations where this
+     * distinction is important. Note that all of these cases involve demuxed content. When
+     * content is muxed, the audio and video are packaged together, therefore syncing
+     * separate media playlists is not an issue.
+     *
+     * CASE 1: Audio prepares to load a new timeline before video:
+     *
+     * Timeline:       0                 1
+     * Audio Segments: 0 1 2 3 4 5 DISCO 6 7 8 9
+     * Audio Loader:                     ^
+     * Video Segments: 0 1 2 3 4 5 DISCO 6 7 8 9
+     * Video Loader              ^
+     *
+     * In the above example, the audio loader is preparing to load the 6th segment, the first
+     * after a discontinuity, while the video loader is still loading the 5th segment, before
+     * the discontinuity.
+     *
+     * If the audio loader goes ahead and loads and appends the 6th segment before the video
+     * loader crosses the discontinuity, then when appended, the 6th audio segment will use
+     * the timestamp offset from timeline 0. This will likely lead to desyncing. In addition,
+     * the audio loader must provide the audioAppendStart value to trim the content in the
+     * transmuxer, and that value relies on the audio timestamp offset. Since the audio
+     * timestamp offset is set by the video (main) loader, the audio loader shouldn't load the
+     * segment until that value is provided.
+     *
+     * CASE 2: Video prepares to load a new timeline before audio:
+     *
+     * Timeline:       0                 1
+     * Audio Segments: 0 1 2 3 4 5 DISCO 6 7 8 9
+     * Audio Loader:             ^
+     * Video Segments: 0 1 2 3 4 5 DISCO 6 7 8 9
+     * Video Loader                      ^
+     *
+     * In the above example, the video loader is preparing to load the 6th segment, the first
+     * after a discontinuity, while the audio loader is still loading the 5th segment, before
+     * the discontinuity.
+     *
+     * If the video loader goes ahead and loads and appends the 6th segment, then once the
+     * segment is loaded and processed, both the video and audio timestamp offsets will be
+     * set, since video is used as the primary timing source. This is to ensure content lines
+     * up appropriately, as any modifications to the video timing are reflected by audio when
+     * the video loader sets the audio and video timestamp offsets to the same value. However,
+     * setting the timestamp offset for audio before audio has had a chance to change
+     * timelines will likely lead to desyncing, as the audio loader will append segment 5 with
+     * a timestamp intended to apply to segments from timeline 1 rather than timeline 0.
+     *
+     * CASE 3: When seeking, audio prepares to load a new timeline before video
+     *
+     * Timeline:       0                 1
+     * Audio Segments: 0 1 2 3 4 5 DISCO 6 7 8 9
+     * Audio Loader:           ^
+     * Video Segments: 0 1 2 3 4 5 DISCO 6 7 8 9
+     * Video Loader            ^
+     *
+     * In the above example, both audio and video loaders are loading segments from timeline
+     * 0, but imagine that the seek originated from timeline 1.
+     *
+     * When seeking to a new timeline, the timestamp offset will be set based on the expected
+     * segment start of the loaded video segment. In order to maintain sync, the audio loader
+     * must wait for the video loader to load its segment and update both the audio and video
+     * timestamp offsets before it may load and append its own segment. This is the case
+     * whether the seek results in a mismatched segment request (e.g., the audio loader
+     * chooses to load segment 3 and the video loader chooses to load segment 4) or the
+     * loaders choose to load the same segment index from each playlist, as the segments may
+     * not be aligned perfectly, even for matching segment indexes.
+     *
+     * @param {Object} timelinechangeController
+     * @param {number} currentTimeline
+     *        The timeline currently being followed by the loader
+     * @param {number} segmentTimeline
+     *        The timeline of the segment being loaded
+     * @param {('main'|'audio')} loaderType
+     *        The loader type
+     * @param {boolean} audioDisabled
+     *        Whether the audio is disabled for the loader. This should only be true when the
+     *        loader may have muxed audio in its segment, but should not append it, e.g., for
+     *        the main loader when an alternate audio playlist is active.
+     *
+     * @return {boolean}
+     *         Whether the loader should wait for a timeline change from the timeline change
+     *         controller before processing the segment
+     */
+
+    const shouldWaitForTimelineChange = ({
+                                             timelineChangeController,
+                                             currentTimeline,
+                                             segmentTimeline,
+                                             loaderType,
+                                             audioDisabled
+                                         }) => {
+        if (currentTimeline === segmentTimeline) {
+            return false;
+        }
+        if (loaderType === 'audio') {
+            const lastMainTimelineChange = timelineChangeController.lastTimelineChange({
+                type: 'main'
+            }); // Audio loader should wait if:
+            //
+            // * main hasn't had a timeline change yet (thus has not loaded its first segment)
+            // * main hasn't yet changed to the timeline audio is looking to load
+
+            return !lastMainTimelineChange || lastMainTimelineChange.to !== segmentTimeline;
+        } // The main loader only needs to wait for timeline changes if there's demuxed audio.
+        // Otherwise, there's nothing to wait for, since audio would be muxed into the main
+        // loader's segments (or the content is audio/video only and handled by the main
+        // loader).
+
+        if (loaderType === 'main' && audioDisabled) {
+            const pendingAudioTimelineChange = timelineChangeController.pendingTimelineChange({
+                type: 'audio'
+            }); // Main loader should wait for the audio loader if audio is not pending a timeline
+            // change to the current timeline.
+            //
+            // Since the main loader is responsible for setting the timestamp offset for both
+            // audio and video, the main loader must wait for audio to be about to change to its
+            // timeline before setting the offset, otherwise, if audio is behind in loading,
+            // segments from the previous timeline would be adjusted by the new timestamp offset.
+            //
+            // This requirement means that video will not cross a timeline until the audio is
+            // about to cross to it, so that way audio and video will always cross the timeline
+            // together.
+            //
+            // In addition to normal timeline changes, these rules also apply to the start of a
+            // stream (going from a non-existent timeline, -1, to timeline 0). It's important
+            // that these rules apply to the first timeline change because if they did not, it's
+            // possible that the main loader will cross two timelines before the audio loader has
+            // crossed one. Logic may be implemented to handle the startup as a special case, but
+            // it's easier to simply treat all timeline changes the same.
+
+            if (pendingAudioTimelineChange && pendingAudioTimelineChange.to === segmentTimeline) {
+                return false;
+            }
+            return true;
+        }
+        return false;
+    };
+    const mediaDuration = timingInfos => {
+        let maxDuration = 0;
+        ['video', 'audio'].forEach(function (type) {
+            const typeTimingInfo = timingInfos[`${type}TimingInfo`];
+            if (!typeTimingInfo) {
+                return;
+            }
+            const {
+                start,
+                end
+            } = typeTimingInfo;
+            let duration;
+            if (typeof start === 'bigint' || typeof end === 'bigint') {
+                duration = window.BigInt(end) - window.BigInt(start);
+            } else if (typeof start === 'number' && typeof end === 'number') {
+                duration = end - start;
+            }
+            if (typeof duration !== 'undefined' && duration > maxDuration) {
+                maxDuration = duration;
+            }
+        }); // convert back to a number if it is lower than MAX_SAFE_INTEGER
+        // as we only need BigInt when we are above that.
+
+        if (typeof maxDuration === 'bigint' && maxDuration < Number.MAX_SAFE_INTEGER) {
+            maxDuration = Number(maxDuration);
+        }
+        return maxDuration;
+    };
+    const segmentTooLong = ({
+                                segmentDuration,
+                                maxDuration
+                            }) => {
+        // 0 duration segments are most likely due to metadata only segments or a lack of
+        // information.
+        if (!segmentDuration) {
+            return false;
+        } // For HLS:
+        //
+        // https://tools.ietf.org/html/draft-pantos-http-live-streaming-23#section-4.3.3.1
+        // The EXTINF duration of each Media Segment in the Playlist
+        // file, when rounded to the nearest integer, MUST be less than or equal
+        // to the target duration; longer segments can trigger playback stalls
+        // or other errors.
+        //
+        // For DASH, the mpd-parser uses the largest reported segment duration as the target
+        // duration. Although that reported duration is occasionally approximate (i.e., not
+        // exact), a strict check may report that a segment is too long more often in DASH.
+
+        return Math.round(segmentDuration) > maxDuration + TIME_FUDGE_FACTOR;
+    };
+    const getTroublesomeSegmentDurationMessage = (segmentInfo, sourceType) => {
+        // Right now we aren't following DASH's timing model exactly, so only perform
+        // this check for HLS content.
+        if (sourceType !== 'hls') {
+            return null;
+        }
+        const segmentDuration = mediaDuration({
+            audioTimingInfo: segmentInfo.audioTimingInfo,
+            videoTimingInfo: segmentInfo.videoTimingInfo
+        }); // Don't report if we lack information.
+        //
+        // If the segment has a duration of 0 it is either a lack of information or a
+        // metadata only segment and shouldn't be reported here.
+
+        if (!segmentDuration) {
+            return null;
+        }
+        const targetDuration = segmentInfo.playlist.targetDuration;
+        const isSegmentWayTooLong = segmentTooLong({
+            segmentDuration,
+            maxDuration: targetDuration * 2
+        });
+        const isSegmentSlightlyTooLong = segmentTooLong({
+            segmentDuration,
+            maxDuration: targetDuration
+        });
+        const segmentTooLongMessage = `Segment with index ${segmentInfo.mediaIndex} ` + `from playlist ${segmentInfo.playlist.id} ` + `has a duration of ${segmentDuration} ` + `when the reported duration is ${segmentInfo.duration} ` + `and the target duration is ${targetDuration}. ` + 'For HLS content, a duration in excess of the target duration may result in ' + 'playback issues. See the HLS specification section on EXT-X-TARGETDURATION for ' + 'more details: ' + 'https://tools.ietf.org/html/draft-pantos-http-live-streaming-23#section-4.3.3.1';
+        if (isSegmentWayTooLong || isSegmentSlightlyTooLong) {
+            return {
+                severity: isSegmentWayTooLong ? 'warn' : 'info',
+                message: segmentTooLongMessage
+            };
+        }
+        return null;
+    };
+    /**
+     * An object that manages segment loading and appending.
+     *
+     * @class SegmentLoader
+     * @param {Object} options required and optional options
+     * @extends videojs.EventTarget
+     */
+
+    class SegmentLoader extends videojs.EventTarget {
+        constructor(settings, options = {}) {
+            super(); // check pre-conditions
+
+            if (!settings) {
+                throw new TypeError('Initialization settings are required');
+            }
+            if (typeof settings.currentTime !== 'function') {
+                throw new TypeError('No currentTime getter specified');
+            }
+            if (!settings.mediaSource) {
+                throw new TypeError('No MediaSource specified');
+            } // public properties
+
+            this.bandwidth = settings.bandwidth;
+            this.throughput = {
+                rate: 0,
+                count: 0
+            };
+            this.roundTrip = NaN;
+            this.resetStats_();
+            this.mediaIndex = null;
+            this.partIndex = null; // private settings
+
+            this.hasPlayed_ = settings.hasPlayed;
+            this.currentTime_ = settings.currentTime;
+            this.seekable_ = settings.seekable;
+            this.seeking_ = settings.seeking;
+            this.duration_ = settings.duration;
+            this.mediaSource_ = settings.mediaSource;
+            this.vhs_ = settings.vhs;
+            this.loaderType_ = settings.loaderType;
+            this.currentMediaInfo_ = void 0;
+            this.startingMediaInfo_ = void 0;
+            this.segmentMetadataTrack_ = settings.segmentMetadataTrack;
+            this.goalBufferLength_ = settings.goalBufferLength;
+            this.sourceType_ = settings.sourceType;
+            this.sourceUpdater_ = settings.sourceUpdater;
+            this.inbandTextTracks_ = settings.inbandTextTracks;
+            this.state_ = 'INIT';
+            this.timelineChangeController_ = settings.timelineChangeController;
+            this.shouldSaveSegmentTimingInfo_ = true;
+            this.parse708captions_ = settings.parse708captions;
+            this.useDtsForTimestampOffset_ = settings.useDtsForTimestampOffset;
+            this.captionServices_ = settings.captionServices;
+            this.exactManifestTimings = settings.exactManifestTimings; // private instance variables
+
+            this.checkBufferTimeout_ = null;
+            this.error_ = void 0;
+            this.currentTimeline_ = -1;
+            this.pendingSegment_ = null;
+            this.xhrOptions_ = null;
+            this.pendingSegments_ = [];
+            this.audioDisabled_ = false;
+            this.isPendingTimestampOffset_ = false; // TODO possibly move gopBuffer and timeMapping info to a separate controller
+
+            this.gopBuffer_ = [];
+            this.timeMapping_ = 0;
+            this.safeAppend_ = videojs.browser.IE_VERSION >= 11;
+            this.appendInitSegment_ = {
+                audio: true,
+                video: true
+            };
+            this.playlistOfLastInitSegment_ = {
+                audio: null,
+                video: null
+            };
+            this.callQueue_ = []; // If the segment loader prepares to load a segment, but does not have enough
+            // information yet to start the loading process (e.g., if the audio loader wants to
+            // load a segment from the next timeline but the main loader hasn't yet crossed that
+            // timeline), then the load call will be added to the queue until it is ready to be
+            // processed.
+
+            this.loadQueue_ = [];
+            this.metadataQueue_ = {
+                id3: [],
+                caption: []
+            };
+            this.waitingOnRemove_ = false;
+            this.quotaExceededErrorRetryTimeout_ = null; // Fragmented mp4 playback
+
+            this.activeInitSegmentId_ = null;
+            this.initSegments_ = {}; // HLSe playback
+
+            this.cacheEncryptionKeys_ = settings.cacheEncryptionKeys;
+            this.keyCache_ = {};
+            this.decrypter_ = settings.decrypter; // Manages the tracking and generation of sync-points, mappings
+            // between a time in the display time and a segment index within
+            // a playlist
+
+            this.syncController_ = settings.syncController;
+            this.syncPoint_ = {
+                segmentIndex: 0,
+                time: 0
+            };
+            this.transmuxer_ = this.createTransmuxer_();
+            this.triggerSyncInfoUpdate_ = () => this.trigger('syncinfoupdate');
+            this.syncController_.on('syncinfoupdate', this.triggerSyncInfoUpdate_);
+            this.mediaSource_.addEventListener('sourceopen', () => {
+                if (!this.isEndOfStream_()) {
+                    this.ended_ = false;
+                }
+            }); // ...for determining the fetch location
+
+            this.fetchAtBuffer_ = false;
+            this.logger_ = logger(`SegmentLoader[${this.loaderType_}]`);
+            Object.defineProperty(this, 'state', {
+                get() {
+                    return this.state_;
+                },
+                set(newState) {
+                    if (newState !== this.state_) {
+                        this.logger_(`${this.state_} -> ${newState}`);
+                        this.state_ = newState;
+                        this.trigger('statechange');
+                    }
+                }
+            });
+            this.sourceUpdater_.on('ready', () => {
+                if (this.hasEnoughInfoToAppend_()) {
+                    this.processCallQueue_();
+                }
+            }); // Only the main loader needs to listen for pending timeline changes, as the main
+            // loader should wait for audio to be ready to change its timeline so that both main
+            // and audio timelines change together. For more details, see the
+            // shouldWaitForTimelineChange function.
+
+            if (this.loaderType_ === 'main') {
+                this.timelineChangeController_.on('pendingtimelinechange', () => {
+                    if (this.hasEnoughInfoToAppend_()) {
+                        this.processCallQueue_();
+                    }
+                });
+            } // The main loader only listens on pending timeline changes, but the audio loader,
+            // since its loads follow main, needs to listen on timeline changes. For more details,
+            // see the shouldWaitForTimelineChange function.
+
+            if (this.loaderType_ === 'audio') {
+                this.timelineChangeController_.on('timelinechange', () => {
+                    if (this.hasEnoughInfoToLoad_()) {
+                        this.processLoadQueue_();
+                    }
+                    if (this.hasEnoughInfoToAppend_()) {
+                        this.processCallQueue_();
+                    }
+                });
+            }
+        }
+        createTransmuxer_() {
+            return segmentTransmuxer.createTransmuxer({
+                remux: false,
+                alignGopsAtEnd: this.safeAppend_,
+                keepOriginalTimestamps: true,
+                parse708captions: this.parse708captions_,
+                captionServices: this.captionServices_
+            });
+        }
+        /**
+         * reset all of our media stats
+         *
+         * @private
+         */
+
+        resetStats_() {
+            this.mediaBytesTransferred = 0;
+            this.mediaRequests = 0;
+            this.mediaRequestsAborted = 0;
+            this.mediaRequestsTimedout = 0;
+            this.mediaRequestsErrored = 0;
+            this.mediaTransferDuration = 0;
+            this.mediaSecondsLoaded = 0;
+            this.mediaAppends = 0;
+        }
+        /**
+         * dispose of the SegmentLoader and reset to the default state
+         */
+
+        dispose() {
+            this.trigger('dispose');
+            this.state = 'DISPOSED';
+            this.pause();
+            this.abort_();
+            if (this.transmuxer_) {
+                this.transmuxer_.terminate();
+            }
+            this.resetStats_();
+            if (this.checkBufferTimeout_) {
+                window.clearTimeout(this.checkBufferTimeout_);
+            }
+            if (this.syncController_ && this.triggerSyncInfoUpdate_) {
+                this.syncController_.off('syncinfoupdate', this.triggerSyncInfoUpdate_);
+            }
+            this.off();
+        }
+        setAudio(enable) {
+            this.audioDisabled_ = !enable;
+            if (enable) {
+                this.appendInitSegment_.audio = true;
+            } else {
+                // remove current track audio if it gets disabled
+                this.sourceUpdater_.removeAudio(0, this.duration_());
+            }
+        }
+        /**
+         * abort anything that is currently doing on with the SegmentLoader
+         * and reset to a default state
+         */
+
+        abort() {
+            if (this.state !== 'WAITING') {
+                if (this.pendingSegment_) {
+                    this.pendingSegment_ = null;
+                }
+                return;
+            }
+            this.abort_(); // We aborted the requests we were waiting on, so reset the loader's state to READY
+            // since we are no longer "waiting" on any requests. XHR callback is not always run
+            // when the request is aborted. This will prevent the loader from being stuck in the
+            // WAITING state indefinitely.
+
+            this.state = 'READY'; // don't wait for buffer check timeouts to begin fetching the
+            // next segment
+
+            if (!this.paused()) {
+                this.monitorBuffer_();
+            }
+        }
+        /**
+         * abort all pending xhr requests and null any pending segements
+         *
+         * @private
+         */
+
+        abort_() {
+            if (this.pendingSegment_ && this.pendingSegment_.abortRequests) {
+                this.pendingSegment_.abortRequests();
+            } // clear out the segment being processed
+
+            this.pendingSegment_ = null;
+            this.callQueue_ = [];
+            this.loadQueue_ = [];
+            this.metadataQueue_.id3 = [];
+            this.metadataQueue_.caption = [];
+            this.timelineChangeController_.clearPendingTimelineChange(this.loaderType_);
+            this.waitingOnRemove_ = false;
+            window.clearTimeout(this.quotaExceededErrorRetryTimeout_);
+            this.quotaExceededErrorRetryTimeout_ = null;
+        }
+        checkForAbort_(requestId) {
+            // If the state is APPENDING, then aborts will not modify the state, meaning the first
+            // callback that happens should reset the state to READY so that loading can continue.
+            if (this.state === 'APPENDING' && !this.pendingSegment_) {
+                this.state = 'READY';
+                return true;
+            }
+            if (!this.pendingSegment_ || this.pendingSegment_.requestId !== requestId) {
+                return true;
+            }
+            return false;
+        }
+        /**
+         * set an error on the segment loader and null out any pending segements
+         *
+         * @param {Error} error the error to set on the SegmentLoader
+         * @return {Error} the error that was set or that is currently set
+         */
+
+        error(error) {
+            if (typeof error !== 'undefined') {
+                this.logger_('error occurred:', error);
+                this.error_ = error;
+            }
+            this.pendingSegment_ = null;
+            return this.error_;
+        }
+        endOfStream() {
+            this.ended_ = true;
+            if (this.transmuxer_) {
+                // need to clear out any cached data to prepare for the new segment
+                segmentTransmuxer.reset(this.transmuxer_);
+            }
+            this.gopBuffer_.length = 0;
+            this.pause();
+            this.trigger('ended');
+        }
+        /**
+         * Indicates which time ranges are buffered
+         *
+         * @return {TimeRange}
+         *         TimeRange object representing the current buffered ranges
+         */
+
+        buffered_() {
+            const trackInfo = this.getMediaInfo_();
+            if (!this.sourceUpdater_ || !trackInfo) {
+                return createTimeRanges();
+            }
+            if (this.loaderType_ === 'main') {
+                const {
+                    hasAudio,
+                    hasVideo,
+                    isMuxed
+                } = trackInfo;
+                if (hasVideo && hasAudio && !this.audioDisabled_ && !isMuxed) {
+                    return this.sourceUpdater_.buffered();
+                }
+                if (hasVideo) {
+                    return this.sourceUpdater_.videoBuffered();
+                }
+            } // One case that can be ignored for now is audio only with alt audio,
+            // as we don't yet have proper support for that.
+
+            return this.sourceUpdater_.audioBuffered();
+        }
+        /**
+         * Gets and sets init segment for the provided map
+         *
+         * @param {Object} map
+         *        The map object representing the init segment to get or set
+         * @param {boolean=} set
+         *        If true, the init segment for the provided map should be saved
+         * @return {Object}
+         *         map object for desired init segment
+         */
+
+        initSegmentForMap(map, set = false) {
+            if (!map) {
+                return null;
+            }
+            const id = initSegmentId(map);
+            let storedMap = this.initSegments_[id];
+            if (set && !storedMap && map.bytes) {
+                this.initSegments_[id] = storedMap = {
+                    resolvedUri: map.resolvedUri,
+                    byterange: map.byterange,
+                    bytes: map.bytes,
+                    tracks: map.tracks,
+                    timescales: map.timescales
+                };
+            }
+            return storedMap || map;
+        }
+        /**
+         * Gets and sets key for the provided key
+         *
+         * @param {Object} key
+         *        The key object representing the key to get or set
+         * @param {boolean=} set
+         *        If true, the key for the provided key should be saved
+         * @return {Object}
+         *         Key object for desired key
+         */
+
+        segmentKey(key, set = false) {
+            if (!key) {
+                return null;
+            }
+            const id = segmentKeyId(key);
+            let storedKey = this.keyCache_[id]; // TODO: We should use the HTTP Expires header to invalidate our cache per
+            // https://tools.ietf.org/html/draft-pantos-http-live-streaming-23#section-6.2.3
+
+            if (this.cacheEncryptionKeys_ && set && !storedKey && key.bytes) {
+                this.keyCache_[id] = storedKey = {
+                    resolvedUri: key.resolvedUri,
+                    bytes: key.bytes
+                };
+            }
+            const result = {
+                resolvedUri: (storedKey || key).resolvedUri
+            };
+            if (storedKey) {
+                result.bytes = storedKey.bytes;
+            }
+            return result;
+        }
+        /**
+         * Returns true if all configuration required for loading is present, otherwise false.
+         *
+         * @return {boolean} True if the all configuration is ready for loading
+         * @private
+         */
+
+        couldBeginLoading_() {
+            return this.playlist_ && !this.paused();
+        }
+        /**
+         * load a playlist and start to fill the buffer
+         */
+
+        load() {
+            // un-pause
+            this.monitorBuffer_(); // if we don't have a playlist yet, keep waiting for one to be
+            // specified
+
+            if (!this.playlist_) {
+                return;
+            } // if all the configuration is ready, initialize and begin loading
+
+            if (this.state === 'INIT' && this.couldBeginLoading_()) {
+                return this.init_();
+            } // if we're in the middle of processing a segment already, don't
+            // kick off an additional segment request
+
+            if (!this.couldBeginLoading_() || this.state !== 'READY' && this.state !== 'INIT') {
+                return;
+            }
+            this.state = 'READY';
+        }
+        /**
+         * Once all the starting parameters have been specified, begin
+         * operation. This method should only be invoked from the INIT
+         * state.
+         *
+         * @private
+         */
+
+        init_() {
+            this.state = 'READY'; // if this is the audio segment loader, and it hasn't been inited before, then any old
+            // audio data from the muxed content should be removed
+
+            this.resetEverything();
+            return this.monitorBuffer_();
+        }
+        /**
+         * set a playlist on the segment loader
+         *
+         * @param {PlaylistLoader} media the playlist to set on the segment loader
+         */
+
+        playlist(newPlaylist, options = {}) {
+            if (!newPlaylist) {
+                return;
+            }
+            const oldPlaylist = this.playlist_;
+            const segmentInfo = this.pendingSegment_;
+            this.playlist_ = newPlaylist;
+            this.xhrOptions_ = options; // when we haven't started playing yet, the start of a live playlist
+            // is always our zero-time so force a sync update each time the playlist
+            // is refreshed from the server
+            //
+            // Use the INIT state to determine if playback has started, as the playlist sync info
+            // should be fixed once requests begin (as sync points are generated based on sync
+            // info), but not before then.
+
+            if (this.state === 'INIT') {
+                newPlaylist.syncInfo = {
+                    mediaSequence: newPlaylist.mediaSequence,
+                    time: 0
+                }; // Setting the date time mapping means mapping the program date time (if available)
+                // to time 0 on the player's timeline. The playlist's syncInfo serves a similar
+                // purpose, mapping the initial mediaSequence to time zero. Since the syncInfo can
+                // be updated as the playlist is refreshed before the loader starts loading, the
+                // program date time mapping needs to be updated as well.
+                //
+                // This mapping is only done for the main loader because a program date time should
+                // map equivalently between playlists.
+
+                if (this.loaderType_ === 'main') {
+                    this.syncController_.setDateTimeMappingForStart(newPlaylist);
+                }
+            }
+            let oldId = null;
+            if (oldPlaylist) {
+                if (oldPlaylist.id) {
+                    oldId = oldPlaylist.id;
+                } else if (oldPlaylist.uri) {
+                    oldId = oldPlaylist.uri;
+                }
+            }
+            this.logger_(`playlist update [${oldId} => ${newPlaylist.id || newPlaylist.uri}]`); // in VOD, this is always a rendition switch (or we updated our syncInfo above)
+            // in LIVE, we always want to update with new playlists (including refreshes)
+
+            this.trigger('syncinfoupdate'); // if we were unpaused but waiting for a playlist, start
+            // buffering now
+
+            if (this.state === 'INIT' && this.couldBeginLoading_()) {
+                return this.init_();
+            }
+            if (!oldPlaylist || oldPlaylist.uri !== newPlaylist.uri) {
+                if (this.mediaIndex !== null) {
+                    // we must reset/resync the segment loader when we switch renditions and
+                    // the segment loader is already synced to the previous rendition
+                    // on playlist changes we want it to be possible to fetch
+                    // at the buffer for vod but not for live. So we use resetLoader
+                    // for live and resyncLoader for vod. We want this because
+                    // if a playlist uses independent and non-independent segments/parts the
+                    // buffer may not accurately reflect the next segment that we should try
+                    // downloading.
+                    if (!newPlaylist.endList) {
+                        this.resetLoader();
+                    } else {
+                        this.resyncLoader();
+                    }
+                }
+                this.currentMediaInfo_ = void 0;
+                this.trigger('playlistupdate'); // the rest of this function depends on `oldPlaylist` being defined
+
+                return;
+            } // we reloaded the same playlist so we are in a live scenario
+            // and we will likely need to adjust the mediaIndex
+
+            const mediaSequenceDiff = newPlaylist.mediaSequence - oldPlaylist.mediaSequence;
+            this.logger_(`live window shift [${mediaSequenceDiff}]`); // update the mediaIndex on the SegmentLoader
+            // this is important because we can abort a request and this value must be
+            // equal to the last appended mediaIndex
+
+            if (this.mediaIndex !== null) {
+                this.mediaIndex -= mediaSequenceDiff; // this can happen if we are going to load the first segment, but get a playlist
+                // update during that. mediaIndex would go from 0 to -1 if mediaSequence in the
+                // new playlist was incremented by 1.
+
+                if (this.mediaIndex < 0) {
+                    this.mediaIndex = null;
+                    this.partIndex = null;
+                } else {
+                    const segment = this.playlist_.segments[this.mediaIndex]; // partIndex should remain the same for the same segment
+                    // unless parts fell off of the playlist for this segment.
+                    // In that case we need to reset partIndex and resync
+
+                    if (this.partIndex && (!segment.parts || !segment.parts.length || !segment.parts[this.partIndex])) {
+                        const mediaIndex = this.mediaIndex;
+                        this.logger_(`currently processing part (index ${this.partIndex}) no longer exists.`);
+                        this.resetLoader(); // We want to throw away the partIndex and the data associated with it,
+                        // as the part was dropped from our current playlists segment.
+                        // The mediaIndex will still be valid so keep that around.
+
+                        this.mediaIndex = mediaIndex;
+                    }
+                }
+            } // update the mediaIndex on the SegmentInfo object
+            // this is important because we will update this.mediaIndex with this value
+            // in `handleAppendsDone_` after the segment has been successfully appended
+
+            if (segmentInfo) {
+                segmentInfo.mediaIndex -= mediaSequenceDiff;
+                if (segmentInfo.mediaIndex < 0) {
+                    segmentInfo.mediaIndex = null;
+                    segmentInfo.partIndex = null;
+                } else {
+                    // we need to update the referenced segment so that timing information is
+                    // saved for the new playlist's segment, however, if the segment fell off the
+                    // playlist, we can leave the old reference and just lose the timing info
+                    if (segmentInfo.mediaIndex >= 0) {
+                        segmentInfo.segment = newPlaylist.segments[segmentInfo.mediaIndex];
+                    }
+                    if (segmentInfo.partIndex >= 0 && segmentInfo.segment.parts) {
+                        segmentInfo.part = segmentInfo.segment.parts[segmentInfo.partIndex];
+                    }
+                }
+            }
+            this.syncController_.saveExpiredSegmentInfo(oldPlaylist, newPlaylist);
+        }
+        /**
+         * Prevent the loader from fetching additional segments. If there
+         * is a segment request outstanding, it will finish processing
+         * before the loader halts. A segment loader can be unpaused by
+         * calling load().
+         */
+
+        pause() {
+            if (this.checkBufferTimeout_) {
+                window.clearTimeout(this.checkBufferTimeout_);
+                this.checkBufferTimeout_ = null;
+            }
+        }
+        /**
+         * Returns whether the segment loader is fetching additional
+         * segments when given the opportunity. This property can be
+         * modified through calls to pause() and load().
+         */
+
+        paused() {
+            return this.checkBufferTimeout_ === null;
+        }
+        /**
+         * Delete all the buffered data and reset the SegmentLoader
+         *
+         * @param {Function} [done] an optional callback to be executed when the remove
+         * operation is complete
+         */
+
+        resetEverything(done) {
+            this.ended_ = false;
+            this.activeInitSegmentId_ = null;
+            this.appendInitSegment_ = {
+                audio: true,
+                video: true
+            };
+            this.resetLoader(); // remove from 0, the earliest point, to Infinity, to signify removal of everything.
+            // VTT Segment Loader doesn't need to do anything but in the regular SegmentLoader,
+            // we then clamp the value to duration if necessary.
+
+            this.remove(0, Infinity, done); // clears fmp4 captions
+
+            if (this.transmuxer_) {
+                this.transmuxer_.postMessage({
+                    action: 'clearAllMp4Captions'
+                }); // reset the cache in the transmuxer
+
+                this.transmuxer_.postMessage({
+                    action: 'reset'
+                });
+            }
+        }
+        /**
+         * Force the SegmentLoader to resync and start loading around the currentTime instead
+         * of starting at the end of the buffer
+         *
+         * Useful for fast quality changes
+         */
+
+        resetLoader() {
+            this.fetchAtBuffer_ = false;
+            this.resyncLoader();
+        }
+        /**
+         * Force the SegmentLoader to restart synchronization and make a conservative guess
+         * before returning to the simple walk-forward method
+         */
+
+        resyncLoader() {
+            if (this.transmuxer_) {
+                // need to clear out any cached data to prepare for the new segment
+                segmentTransmuxer.reset(this.transmuxer_);
+            }
+            this.mediaIndex = null;
+            this.partIndex = null;
+            this.syncPoint_ = null;
+            this.isPendingTimestampOffset_ = false;
+            this.callQueue_ = [];
+            this.loadQueue_ = [];
+            this.metadataQueue_.id3 = [];
+            this.metadataQueue_.caption = [];
+            this.abort();
+            if (this.transmuxer_) {
+                this.transmuxer_.postMessage({
+                    action: 'clearParsedMp4Captions'
+                });
+            }
+        }
+        /**
+         * Remove any data in the source buffer between start and end times
+         *
+         * @param {number} start - the start time of the region to remove from the buffer
+         * @param {number} end - the end time of the region to remove from the buffer
+         * @param {Function} [done] - an optional callback to be executed when the remove
+         * @param {boolean} force - force all remove operations to happen
+         * operation is complete
+         */
+
+        remove(start, end, done = () => {}, force = false) {
+            // clamp end to duration if we need to remove everything.
+            // This is due to a browser bug that causes issues if we remove to Infinity.
+            // videojs/videojs-contrib-hls#1225
+            if (end === Infinity) {
+                end = this.duration_();
+            } // skip removes that would throw an error
+            // commonly happens during a rendition switch at the start of a video
+            // from start 0 to end 0
+
+            if (end <= start) {
+                this.logger_('skipping remove because end ${end} is <= start ${start}');
+                return;
+            }
+            if (!this.sourceUpdater_ || !this.getMediaInfo_()) {
+                this.logger_('skipping remove because no source updater or starting media info'); // nothing to remove if we haven't processed any media
+
+                return;
+            } // set it to one to complete this function's removes
+
+            let removesRemaining = 1;
+            const removeFinished = () => {
+                removesRemaining--;
+                if (removesRemaining === 0) {
+                    done();
+                }
+            };
+            if (force || !this.audioDisabled_) {
+                removesRemaining++;
+                this.sourceUpdater_.removeAudio(start, end, removeFinished);
+            } // While it would be better to only remove video if the main loader has video, this
+            // should be safe with audio only as removeVideo will call back even if there's no
+            // video buffer.
+            //
+            // In theory we can check to see if there's video before calling the remove, but in
+            // the event that we're switching between renditions and from video to audio only
+            // (when we add support for that), we may need to clear the video contents despite
+            // what the new media will contain.
+
+            if (force || this.loaderType_ === 'main') {
+                this.gopBuffer_ = removeGopBuffer(this.gopBuffer_, start, end, this.timeMapping_);
+                removesRemaining++;
+                this.sourceUpdater_.removeVideo(start, end, removeFinished);
+            } // remove any captions and ID3 tags
+
+            for (const track in this.inbandTextTracks_) {
+                removeCuesFromTrack(start, end, this.inbandTextTracks_[track]);
+            }
+            removeCuesFromTrack(start, end, this.segmentMetadataTrack_); // finished this function's removes
+
+            removeFinished();
+        }
+        /**
+         * (re-)schedule monitorBufferTick_ to run as soon as possible
+         *
+         * @private
+         */
+
+        monitorBuffer_() {
+            if (this.checkBufferTimeout_) {
+                window.clearTimeout(this.checkBufferTimeout_);
+            }
+            this.checkBufferTimeout_ = window.setTimeout(this.monitorBufferTick_.bind(this), 1);
+        }
+        /**
+         * As long as the SegmentLoader is in the READY state, periodically
+         * invoke fillBuffer_().
+         *
+         * @private
+         */
+
+        monitorBufferTick_() {
+            if (this.state === 'READY') {
+                this.fillBuffer_();
+            }
+            if (this.checkBufferTimeout_) {
+                window.clearTimeout(this.checkBufferTimeout_);
+            }
+            this.checkBufferTimeout_ = window.setTimeout(this.monitorBufferTick_.bind(this), CHECK_BUFFER_DELAY);
+        }
+        /**
+         * fill the buffer with segements unless the sourceBuffers are
+         * currently updating
+         *
+         * Note: this function should only ever be called by monitorBuffer_
+         * and never directly
+         *
+         * @private
+         */
+
+        fillBuffer_() {
+            // TODO since the source buffer maintains a queue, and we shouldn't call this function
+            // except when we're ready for the next segment, this check can most likely be removed
+            if (this.sourceUpdater_.updating()) {
+                return;
+            } // see if we need to begin loading immediately
+
+            const segmentInfo = this.chooseNextRequest_();
+            if (!segmentInfo) {
+                return;
+            }
+            if (typeof segmentInfo.timestampOffset === 'number') {
+                this.isPendingTimestampOffset_ = false;
+                this.timelineChangeController_.pendingTimelineChange({
+                    type: this.loaderType_,
+                    from: this.currentTimeline_,
+                    to: segmentInfo.timeline
+                });
+            }
+            this.loadSegment_(segmentInfo);
+        }
+        /**
+         * Determines if we should call endOfStream on the media source based
+         * on the state of the buffer or if appened segment was the final
+         * segment in the playlist.
+         *
+         * @param {number} [mediaIndex] the media index of segment we last appended
+         * @param {Object} [playlist] a media playlist object
+         * @return {boolean} do we need to call endOfStream on the MediaSource
+         */
+
+        isEndOfStream_(mediaIndex = this.mediaIndex, playlist = this.playlist_, partIndex = this.partIndex) {
+            if (!playlist || !this.mediaSource_) {
+                return false;
+            }
+            const segment = typeof mediaIndex === 'number' && playlist.segments[mediaIndex]; // mediaIndex is zero based but length is 1 based
+
+            const appendedLastSegment = mediaIndex + 1 === playlist.segments.length; // true if there are no parts, or this is the last part.
+
+            const appendedLastPart = !segment || !segment.parts || partIndex + 1 === segment.parts.length; // if we've buffered to the end of the video, we need to call endOfStream
+            // so that MediaSources can trigger the `ended` event when it runs out of
+            // buffered data instead of waiting for me
+
+            return playlist.endList && this.mediaSource_.readyState === 'open' && appendedLastSegment && appendedLastPart;
+        }
+        /**
+         * Determines what request should be made given current segment loader state.
+         *
+         * @return {Object} a request object that describes the segment/part to load
+         */
+
+        chooseNextRequest_() {
+            const buffered = this.buffered_();
+            const bufferedEnd = lastBufferedEnd(buffered) || 0;
+            const bufferedTime = timeAheadOf(buffered, this.currentTime_());
+            const preloaded = !this.hasPlayed_() && bufferedTime >= 1;
+            const haveEnoughBuffer = bufferedTime >= this.goalBufferLength_();
+            const segments = this.playlist_.segments; // return no segment if:
+            // 1. we don't have segments
+            // 2. The video has not yet played and we already downloaded a segment
+            // 3. we already have enough buffered time
+
+            if (!segments.length || preloaded || haveEnoughBuffer) {
+                return null;
+            }
+            this.syncPoint_ = this.syncPoint_ || this.syncController_.getSyncPoint(this.playlist_, this.duration_(), this.currentTimeline_, this.currentTime_());
+            const next = {
+                partIndex: null,
+                mediaIndex: null,
+                startOfSegment: null,
+                playlist: this.playlist_,
+                isSyncRequest: Boolean(!this.syncPoint_)
+            };
+            if (next.isSyncRequest) {
+                next.mediaIndex = getSyncSegmentCandidate(this.currentTimeline_, segments, bufferedEnd);
+            } else if (this.mediaIndex !== null) {
+                const segment = segments[this.mediaIndex];
+                const partIndex = typeof this.partIndex === 'number' ? this.partIndex : -1;
+                next.startOfSegment = segment.end ? segment.end : bufferedEnd;
+                if (segment.parts && segment.parts[partIndex + 1]) {
+                    next.mediaIndex = this.mediaIndex;
+                    next.partIndex = partIndex + 1;
+                } else {
+                    next.mediaIndex = this.mediaIndex + 1;
+                }
+            } else {
+                // Find the segment containing the end of the buffer or current time.
+                const {
+                    segmentIndex,
+                    startTime,
+                    partIndex
+                } = Playlist.getMediaInfoForTime({
+                    exactManifestTimings: this.exactManifestTimings,
+                    playlist: this.playlist_,
+                    currentTime: this.fetchAtBuffer_ ? bufferedEnd : this.currentTime_(),
+                    startingPartIndex: this.syncPoint_.partIndex,
+                    startingSegmentIndex: this.syncPoint_.segmentIndex,
+                    startTime: this.syncPoint_.time
+                });
+                next.getMediaInfoForTime = this.fetchAtBuffer_ ? `bufferedEnd ${bufferedEnd}` : `currentTime ${this.currentTime_()}`;
+                next.mediaIndex = segmentIndex;
+                next.startOfSegment = startTime;
+                next.partIndex = partIndex;
+            }
+            const nextSegment = segments[next.mediaIndex];
+            let nextPart = nextSegment && typeof next.partIndex === 'number' && nextSegment.parts && nextSegment.parts[next.partIndex]; // if the next segment index is invalid or
+            // the next partIndex is invalid do not choose a next segment.
+
+            if (!nextSegment || typeof next.partIndex === 'number' && !nextPart) {
+                return null;
+            } // if the next segment has parts, and we don't have a partIndex.
+            // Set partIndex to 0
+
+            if (typeof next.partIndex !== 'number' && nextSegment.parts) {
+                next.partIndex = 0;
+                nextPart = nextSegment.parts[0];
+            } // if we have no buffered data then we need to make sure
+            // that the next part we append is "independent" if possible.
+            // So we check if the previous part is independent, and request
+            // it if it is.
+
+            if (!bufferedTime && nextPart && !nextPart.independent) {
+                if (next.partIndex === 0) {
+                    const lastSegment = segments[next.mediaIndex - 1];
+                    const lastSegmentLastPart = lastSegment.parts && lastSegment.parts.length && lastSegment.parts[lastSegment.parts.length - 1];
+                    if (lastSegmentLastPart && lastSegmentLastPart.independent) {
+                        next.mediaIndex -= 1;
+                        next.partIndex = lastSegment.parts.length - 1;
+                        next.independent = 'previous segment';
+                    }
+                } else if (nextSegment.parts[next.partIndex - 1].independent) {
+                    next.partIndex -= 1;
+                    next.independent = 'previous part';
+                }
+            }
+            const ended = this.mediaSource_ && this.mediaSource_.readyState === 'ended'; // do not choose a next segment if all of the following:
+            // 1. this is the last segment in the playlist
+            // 2. end of stream has been called on the media source already
+            // 3. the player is not seeking
+
+            if (next.mediaIndex >= segments.length - 1 && ended && !this.seeking_()) {
+                return null;
+            }
+            return this.generateSegmentInfo_(next);
+        }
+        generateSegmentInfo_(options) {
+            const {
+                independent,
+                playlist,
+                mediaIndex,
+                startOfSegment,
+                isSyncRequest,
+                partIndex,
+                forceTimestampOffset,
+                getMediaInfoForTime
+            } = options;
+            const segment = playlist.segments[mediaIndex];
+            const part = typeof partIndex === 'number' && segment.parts[partIndex];
+            const segmentInfo = {
+                requestId: 'segment-loader-' + Math.random(),
+                // resolve the segment URL relative to the playlist
+                uri: part && part.resolvedUri || segment.resolvedUri,
+                // the segment's mediaIndex at the time it was requested
+                mediaIndex,
+                partIndex: part ? partIndex : null,
+                // whether or not to update the SegmentLoader's state with this
+                // segment's mediaIndex
+                isSyncRequest,
+                startOfSegment,
+                // the segment's playlist
+                playlist,
+                // unencrypted bytes of the segment
+                bytes: null,
+                // when a key is defined for this segment, the encrypted bytes
+                encryptedBytes: null,
+                // The target timestampOffset for this segment when we append it
+                // to the source buffer
+                timestampOffset: null,
+                // The timeline that the segment is in
+                timeline: segment.timeline,
+                // The expected duration of the segment in seconds
+                duration: part && part.duration || segment.duration,
+                // retain the segment in case the playlist updates while doing an async process
+                segment,
+                part,
+                byteLength: 0,
+                transmuxer: this.transmuxer_,
+                // type of getMediaInfoForTime that was used to get this segment
+                getMediaInfoForTime,
+                independent
+            };
+            const overrideCheck = typeof forceTimestampOffset !== 'undefined' ? forceTimestampOffset : this.isPendingTimestampOffset_;
+            segmentInfo.timestampOffset = this.timestampOffsetForSegment_({
+                segmentTimeline: segment.timeline,
+                currentTimeline: this.currentTimeline_,
+                startOfSegment,
+                buffered: this.buffered_(),
+                overrideCheck
+            });
+            const audioBufferedEnd = lastBufferedEnd(this.sourceUpdater_.audioBuffered());
+            if (typeof audioBufferedEnd === 'number') {
+                // since the transmuxer is using the actual timing values, but the buffer is
+                // adjusted by the timestamp offset, we must adjust the value here
+                segmentInfo.audioAppendStart = audioBufferedEnd - this.sourceUpdater_.audioTimestampOffset();
+            }
+            if (this.sourceUpdater_.videoBuffered().length) {
+                segmentInfo.gopsToAlignWith = gopsSafeToAlignWith(this.gopBuffer_,
+                    // since the transmuxer is using the actual timing values, but the time is
+                    // adjusted by the timestmap offset, we must adjust the value here
+                    this.currentTime_() - this.sourceUpdater_.videoTimestampOffset(), this.timeMapping_);
+            }
+            return segmentInfo;
+        } // get the timestampoffset for a segment,
+        // added so that vtt segment loader can override and prevent
+        // adding timestamp offsets.
+
+        timestampOffsetForSegment_(options) {
+            return timestampOffsetForSegment(options);
+        }
+        /**
+         * Determines if the network has enough bandwidth to complete the current segment
+         * request in a timely manner. If not, the request will be aborted early and bandwidth
+         * updated to trigger a playlist switch.
+         *
+         * @param {Object} stats
+         *        Object containing stats about the request timing and size
+         * @private
+         */
+
+        earlyAbortWhenNeeded_(stats) {
+            if (this.vhs_.tech_.paused() ||
+                // Don't abort if the current playlist is on the lowestEnabledRendition
+                // TODO: Replace using timeout with a boolean indicating whether this playlist is
+                //       the lowestEnabledRendition.
+                !this.xhrOptions_.timeout ||
+                // Don't abort if we have no bandwidth information to estimate segment sizes
+                !this.playlist_.attributes.BANDWIDTH) {
+                return;
+            } // Wait at least 1 second since the first byte of data has been received before
+            // using the calculated bandwidth from the progress event to allow the bitrate
+            // to stabilize
+
+            if (Date.now() - (stats.firstBytesReceivedAt || Date.now()) < 1000) {
+                return;
+            }
+            const currentTime = this.currentTime_();
+            const measuredBandwidth = stats.bandwidth;
+            const segmentDuration = this.pendingSegment_.duration;
+            const requestTimeRemaining = Playlist.estimateSegmentRequestTime(segmentDuration, measuredBandwidth, this.playlist_, stats.bytesReceived); // Subtract 1 from the timeUntilRebuffer so we still consider an early abort
+            // if we are only left with less than 1 second when the request completes.
+            // A negative timeUntilRebuffering indicates we are already rebuffering
+
+            const timeUntilRebuffer$1 = timeUntilRebuffer(this.buffered_(), currentTime, this.vhs_.tech_.playbackRate()) - 1; // Only consider aborting early if the estimated time to finish the download
+            // is larger than the estimated time until the player runs out of forward buffer
+
+            if (requestTimeRemaining <= timeUntilRebuffer$1) {
+                return;
+            }
+            const switchCandidate = minRebufferMaxBandwidthSelector({
+                main: this.vhs_.playlists.main,
+                currentTime,
+                bandwidth: measuredBandwidth,
+                duration: this.duration_(),
+                segmentDuration,
+                timeUntilRebuffer: timeUntilRebuffer$1,
+                currentTimeline: this.currentTimeline_,
+                syncController: this.syncController_
+            });
+            if (!switchCandidate) {
+                return;
+            }
+            const rebufferingImpact = requestTimeRemaining - timeUntilRebuffer$1;
+            const timeSavedBySwitching = rebufferingImpact - switchCandidate.rebufferingImpact;
+            let minimumTimeSaving = 0.5; // If we are already rebuffering, increase the amount of variance we add to the
+            // potential round trip time of the new request so that we are not too aggressive
+            // with switching to a playlist that might save us a fraction of a second.
+
+            if (timeUntilRebuffer$1 <= TIME_FUDGE_FACTOR) {
+                minimumTimeSaving = 1;
+            }
+            if (!switchCandidate.playlist || switchCandidate.playlist.uri === this.playlist_.uri || timeSavedBySwitching < minimumTimeSaving) {
+                return;
+            } // set the bandwidth to that of the desired playlist being sure to scale by
+            // BANDWIDTH_VARIANCE and add one so the playlist selector does not exclude it
+            // don't trigger a bandwidthupdate as the bandwidth is artifial
+
+            this.bandwidth = switchCandidate.playlist.attributes.BANDWIDTH * Config.BANDWIDTH_VARIANCE + 1;
+            this.trigger('earlyabort');
+        }
+        handleAbort_(segmentInfo) {
+            this.logger_(`Aborting ${segmentInfoString(segmentInfo)}`);
+            this.mediaRequestsAborted += 1;
+        }
+        /**
+         * XHR `progress` event handler
+         *
+         * @param {Event}
+         *        The XHR `progress` event
+         * @param {Object} simpleSegment
+         *        A simplified segment object copy
+         * @private
+         */
+
+        handleProgress_(event, simpleSegment) {
+            this.earlyAbortWhenNeeded_(simpleSegment.stats);
+            if (this.checkForAbort_(simpleSegment.requestId)) {
+                return;
+            }
+            this.trigger('progress');
+        }
+        handleTrackInfo_(simpleSegment, trackInfo) {
+            this.earlyAbortWhenNeeded_(simpleSegment.stats);
+            if (this.checkForAbort_(simpleSegment.requestId)) {
+                return;
+            }
+            if (this.checkForIllegalMediaSwitch(trackInfo)) {
+                return;
+            }
+            trackInfo = trackInfo || {}; // When we have track info, determine what media types this loader is dealing with.
+            // Guard against cases where we're not getting track info at all until we are
+            // certain that all streams will provide it.
+
+            if (!shallowEqual(this.currentMediaInfo_, trackInfo)) {
+                this.appendInitSegment_ = {
+                    audio: true,
+                    video: true
+                };
+                this.startingMediaInfo_ = trackInfo;
+                this.currentMediaInfo_ = trackInfo;
+                this.logger_('trackinfo update', trackInfo);
+                this.trigger('trackinfo');
+            } // trackinfo may cause an abort if the trackinfo
+            // causes a codec change to an unsupported codec.
+
+            if (this.checkForAbort_(simpleSegment.requestId)) {
+                return;
+            } // set trackinfo on the pending segment so that
+            // it can append.
+
+            this.pendingSegment_.trackInfo = trackInfo; // check if any calls were waiting on the track info
+
+            if (this.hasEnoughInfoToAppend_()) {
+                this.processCallQueue_();
+            }
+        }
+        handleTimingInfo_(simpleSegment, mediaType, timeType, time) {
+            this.earlyAbortWhenNeeded_(simpleSegment.stats);
+            if (this.checkForAbort_(simpleSegment.requestId)) {
+                return;
+            }
+            const segmentInfo = this.pendingSegment_;
+            const timingInfoProperty = timingInfoPropertyForMedia(mediaType);
+            segmentInfo[timingInfoProperty] = segmentInfo[timingInfoProperty] || {};
+            segmentInfo[timingInfoProperty][timeType] = time;
+            this.logger_(`timinginfo: ${mediaType} - ${timeType} - ${time}`); // check if any calls were waiting on the timing info
+
+            if (this.hasEnoughInfoToAppend_()) {
+                this.processCallQueue_();
+            }
+        }
+        handleCaptions_(simpleSegment, captionData) {
+            this.earlyAbortWhenNeeded_(simpleSegment.stats);
+            if (this.checkForAbort_(simpleSegment.requestId)) {
+                return;
+            } // This could only happen with fmp4 segments, but
+            // should still not happen in general
+
+            if (captionData.length === 0) {
+                this.logger_('SegmentLoader received no captions from a caption event');
+                return;
+            }
+            const segmentInfo = this.pendingSegment_; // Wait until we have some video data so that caption timing
+            // can be adjusted by the timestamp offset
+
+            if (!segmentInfo.hasAppendedData_) {
+                this.metadataQueue_.caption.push(this.handleCaptions_.bind(this, simpleSegment, captionData));
+                return;
+            }
+            const timestampOffset = this.sourceUpdater_.videoTimestampOffset() === null ? this.sourceUpdater_.audioTimestampOffset() : this.sourceUpdater_.videoTimestampOffset();
+            const captionTracks = {}; // get total start/end and captions for each track/stream
+
+            captionData.forEach(caption => {
+                // caption.stream is actually a track name...
+                // set to the existing values in tracks or default values
+                captionTracks[caption.stream] = captionTracks[caption.stream] || {
+                    // Infinity, as any other value will be less than this
+                    startTime: Infinity,
+                    captions: [],
+                    // 0 as an other value will be more than this
+                    endTime: 0
+                };
+                const captionTrack = captionTracks[caption.stream];
+                captionTrack.startTime = Math.min(captionTrack.startTime, caption.startTime + timestampOffset);
+                captionTrack.endTime = Math.max(captionTrack.endTime, caption.endTime + timestampOffset);
+                captionTrack.captions.push(caption);
+            });
+            Object.keys(captionTracks).forEach(trackName => {
+                const {
+                    startTime,
+                    endTime,
+                    captions
+                } = captionTracks[trackName];
+                const inbandTextTracks = this.inbandTextTracks_;
+                this.logger_(`adding cues from ${startTime} -> ${endTime} for ${trackName}`);
+                createCaptionsTrackIfNotExists(inbandTextTracks, this.vhs_.tech_, trackName); // clear out any cues that start and end at the same time period for the same track.
+                // We do this because a rendition change that also changes the timescale for captions
+                // will result in captions being re-parsed for certain segments. If we add them again
+                // without clearing we will have two of the same captions visible.
+
+                removeCuesFromTrack(startTime, endTime, inbandTextTracks[trackName]);
+                addCaptionData({
+                    captionArray: captions,
+                    inbandTextTracks,
+                    timestampOffset
+                });
+            }); // Reset stored captions since we added parsed
+            // captions to a text track at this point
+
+            if (this.transmuxer_) {
+                this.transmuxer_.postMessage({
+                    action: 'clearParsedMp4Captions'
+                });
+            }
+        }
+        handleId3_(simpleSegment, id3Frames, dispatchType) {
+            this.earlyAbortWhenNeeded_(simpleSegment.stats);
+            if (this.checkForAbort_(simpleSegment.requestId)) {
+                return;
+            }
+            const segmentInfo = this.pendingSegment_; // we need to have appended data in order for the timestamp offset to be set
+
+            if (!segmentInfo.hasAppendedData_) {
+                this.metadataQueue_.id3.push(this.handleId3_.bind(this, simpleSegment, id3Frames, dispatchType));
+                return;
+            }
+            const timestampOffset = this.sourceUpdater_.videoTimestampOffset() === null ? this.sourceUpdater_.audioTimestampOffset() : this.sourceUpdater_.videoTimestampOffset(); // There's potentially an issue where we could double add metadata if there's a muxed
+            // audio/video source with a metadata track, and an alt audio with a metadata track.
+            // However, this probably won't happen, and if it does it can be handled then.
+
+            createMetadataTrackIfNotExists(this.inbandTextTracks_, dispatchType, this.vhs_.tech_);
+            addMetadata({
+                inbandTextTracks: this.inbandTextTracks_,
+                metadataArray: id3Frames,
+                timestampOffset,
+                videoDuration: this.duration_()
+            });
+        }
+        processMetadataQueue_() {
+            this.metadataQueue_.id3.forEach(fn => fn());
+            this.metadataQueue_.caption.forEach(fn => fn());
+            this.metadataQueue_.id3 = [];
+            this.metadataQueue_.caption = [];
+        }
+        processCallQueue_() {
+            const callQueue = this.callQueue_; // Clear out the queue before the queued functions are run, since some of the
+            // functions may check the length of the load queue and default to pushing themselves
+            // back onto the queue.
+
+            this.callQueue_ = [];
+            callQueue.forEach(fun => fun());
+        }
+        processLoadQueue_() {
+            const loadQueue = this.loadQueue_; // Clear out the queue before the queued functions are run, since some of the
+            // functions may check the length of the load queue and default to pushing themselves
+            // back onto the queue.
+
+            this.loadQueue_ = [];
+            loadQueue.forEach(fun => fun());
+        }
+        /**
+         * Determines whether the loader has enough info to load the next segment.
+         *
+         * @return {boolean}
+         *         Whether or not the loader has enough info to load the next segment
+         */
+
+        hasEnoughInfoToLoad_() {
+            // Since primary timing goes by video, only the audio loader potentially needs to wait
+            // to load.
+            if (this.loaderType_ !== 'audio') {
+                return true;
+            }
+            const segmentInfo = this.pendingSegment_; // A fill buffer must have already run to establish a pending segment before there's
+            // enough info to load.
+
+            if (!segmentInfo) {
+                return false;
+            } // The first segment can and should be loaded immediately so that source buffers are
+            // created together (before appending). Source buffer creation uses the presence of
+            // audio and video data to determine whether to create audio/video source buffers, and
+            // uses processed (transmuxed or parsed) media to determine the types required.
+
+            if (!this.getCurrentMediaInfo_()) {
+                return true;
+            }
+            if (
+                // Technically, instead of waiting to load a segment on timeline changes, a segment
+                // can be requested and downloaded and only wait before it is transmuxed or parsed.
+                // But in practice, there are a few reasons why it is better to wait until a loader
+                // is ready to append that segment before requesting and downloading:
+                //
+                // 1. Because audio and main loaders cross discontinuities together, if this loader
+                //    is waiting for the other to catch up, then instead of requesting another
+                //    segment and using up more bandwidth, by not yet loading, more bandwidth is
+                //    allotted to the loader currently behind.
+                // 2. media-segment-request doesn't have to have logic to consider whether a segment
+                // is ready to be processed or not, isolating the queueing behavior to the loader.
+                // 3. The audio loader bases some of its segment properties on timing information
+                //    provided by the main loader, meaning that, if the logic for waiting on
+                //    processing was in media-segment-request, then it would also need to know how
+                //    to re-generate the segment information after the main loader caught up.
+                shouldWaitForTimelineChange({
+                    timelineChangeController: this.timelineChangeController_,
+                    currentTimeline: this.currentTimeline_,
+                    segmentTimeline: segmentInfo.timeline,
+                    loaderType: this.loaderType_,
+                    audioDisabled: this.audioDisabled_
+                })) {
+                return false;
+            }
+            return true;
+        }
+        getCurrentMediaInfo_(segmentInfo = this.pendingSegment_) {
+            return segmentInfo && segmentInfo.trackInfo || this.currentMediaInfo_;
+        }
+        getMediaInfo_(segmentInfo = this.pendingSegment_) {
+            return this.getCurrentMediaInfo_(segmentInfo) || this.startingMediaInfo_;
+        }
+        getPendingSegmentPlaylist() {
+            return this.pendingSegment_ ? this.pendingSegment_.playlist : null;
+        }
+        hasEnoughInfoToAppend_() {
+            if (!this.sourceUpdater_.ready()) {
+                return false;
+            } // If content needs to be removed or the loader is waiting on an append reattempt,
+            // then no additional content should be appended until the prior append is resolved.
+
+            if (this.waitingOnRemove_ || this.quotaExceededErrorRetryTimeout_) {
+                return false;
+            }
+            const segmentInfo = this.pendingSegment_;
+            const trackInfo = this.getCurrentMediaInfo_(); // no segment to append any data for or
+            // we do not have information on this specific
+            // segment yet
+
+            if (!segmentInfo || !trackInfo) {
+                return false;
+            }
+            const {
+                hasAudio,
+                hasVideo,
+                isMuxed
+            } = trackInfo;
+            if (hasVideo && !segmentInfo.videoTimingInfo) {
+                return false;
+            } // muxed content only relies on video timing information for now.
+
+            if (hasAudio && !this.audioDisabled_ && !isMuxed && !segmentInfo.audioTimingInfo) {
+                return false;
+            }
+            if (shouldWaitForTimelineChange({
+                timelineChangeController: this.timelineChangeController_,
+                currentTimeline: this.currentTimeline_,
+                segmentTimeline: segmentInfo.timeline,
+                loaderType: this.loaderType_,
+                audioDisabled: this.audioDisabled_
+            })) {
+                return false;
+            }
+            return true;
+        }
+        handleData_(simpleSegment, result) {
+            this.earlyAbortWhenNeeded_(simpleSegment.stats);
+            if (this.checkForAbort_(simpleSegment.requestId)) {
+                return;
+            } // If there's anything in the call queue, then this data came later and should be
+            // executed after the calls currently queued.
+
+            if (this.callQueue_.length || !this.hasEnoughInfoToAppend_()) {
+                this.callQueue_.push(this.handleData_.bind(this, simpleSegment, result));
+                return;
+            }
+            const segmentInfo = this.pendingSegment_; // update the time mapping so we can translate from display time to media time
+
+            this.setTimeMapping_(segmentInfo.timeline); // for tracking overall stats
+
+            this.updateMediaSecondsLoaded_(segmentInfo.part || segmentInfo.segment); // Note that the state isn't changed from loading to appending. This is because abort
+            // logic may change behavior depending on the state, and changing state too early may
+            // inflate our estimates of bandwidth. In the future this should be re-examined to
+            // note more granular states.
+            // don't process and append data if the mediaSource is closed
+
+            if (this.mediaSource_.readyState === 'closed') {
+                return;
+            } // if this request included an initialization segment, save that data
+            // to the initSegment cache
+
+            if (simpleSegment.map) {
+                simpleSegment.map = this.initSegmentForMap(simpleSegment.map, true); // move over init segment properties to media request
+
+                segmentInfo.segment.map = simpleSegment.map;
+            } // if this request included a segment key, save that data in the cache
+
+            if (simpleSegment.key) {
+                this.segmentKey(simpleSegment.key, true);
+            }
+            segmentInfo.isFmp4 = simpleSegment.isFmp4;
+            segmentInfo.timingInfo = segmentInfo.timingInfo || {};
+            if (segmentInfo.isFmp4) {
+                this.trigger('fmp4');
+                segmentInfo.timingInfo.start = segmentInfo[timingInfoPropertyForMedia(result.type)].start;
+            } else {
+                const trackInfo = this.getCurrentMediaInfo_();
+                const useVideoTimingInfo = this.loaderType_ === 'main' && trackInfo && trackInfo.hasVideo;
+                let firstVideoFrameTimeForData;
+                if (useVideoTimingInfo) {
+                    firstVideoFrameTimeForData = segmentInfo.videoTimingInfo.start;
+                } // Segment loader knows more about segment timing than the transmuxer (in certain
+                // aspects), so make any changes required for a more accurate start time.
+                // Don't set the end time yet, as the segment may not be finished processing.
+
+                segmentInfo.timingInfo.start = this.trueSegmentStart_({
+                    currentStart: segmentInfo.timingInfo.start,
+                    playlist: segmentInfo.playlist,
+                    mediaIndex: segmentInfo.mediaIndex,
+                    currentVideoTimestampOffset: this.sourceUpdater_.videoTimestampOffset(),
+                    useVideoTimingInfo,
+                    firstVideoFrameTimeForData,
+                    videoTimingInfo: segmentInfo.videoTimingInfo,
+                    audioTimingInfo: segmentInfo.audioTimingInfo
+                });
+            } // Init segments for audio and video only need to be appended in certain cases. Now
+            // that data is about to be appended, we can check the final cases to determine
+            // whether we should append an init segment.
+
+            this.updateAppendInitSegmentStatus(segmentInfo, result.type); // Timestamp offset should be updated once we get new data and have its timing info,
+            // as we use the start of the segment to offset the best guess (playlist provided)
+            // timestamp offset.
+
+            this.updateSourceBufferTimestampOffset_(segmentInfo); // if this is a sync request we need to determine whether it should
+            // be appended or not.
+
+            if (segmentInfo.isSyncRequest) {
+                // first save/update our timing info for this segment.
+                // this is what allows us to choose an accurate segment
+                // and the main reason we make a sync request.
+                this.updateTimingInfoEnd_(segmentInfo);
+                this.syncController_.saveSegmentTimingInfo({
+                    segmentInfo,
+                    shouldSaveTimelineMapping: this.loaderType_ === 'main'
+                });
+                const next = this.chooseNextRequest_(); // If the sync request isn't the segment that would be requested next
+                // after taking into account its timing info, do not append it.
+
+                if (next.mediaIndex !== segmentInfo.mediaIndex || next.partIndex !== segmentInfo.partIndex) {
+                    this.logger_('sync segment was incorrect, not appending');
+                    return;
+                } // otherwise append it like any other segment as our guess was correct.
+
+                this.logger_('sync segment was correct, appending');
+            } // Save some state so that in the future anything waiting on first append (and/or
+            // timestamp offset(s)) can process immediately. While the extra state isn't optimal,
+            // we need some notion of whether the timestamp offset or other relevant information
+            // has had a chance to be set.
+
+            segmentInfo.hasAppendedData_ = true; // Now that the timestamp offset should be set, we can append any waiting ID3 tags.
+
+            this.processMetadataQueue_();
+            this.appendData_(segmentInfo, result);
+        }
+        updateAppendInitSegmentStatus(segmentInfo, type) {
+            // alt audio doesn't manage timestamp offset
+            if (this.loaderType_ === 'main' && typeof segmentInfo.timestampOffset === 'number' &&
+                // in the case that we're handling partial data, we don't want to append an init
+                // segment for each chunk
+                !segmentInfo.changedTimestampOffset) {
+                // if the timestamp offset changed, the timeline may have changed, so we have to re-
+                // append init segments
+                this.appendInitSegment_ = {
+                    audio: true,
+                    video: true
+                };
+            }
+            if (this.playlistOfLastInitSegment_[type] !== segmentInfo.playlist) {
+                // make sure we append init segment on playlist changes, in case the media config
+                // changed
+                this.appendInitSegment_[type] = true;
+            }
+        }
+        getInitSegmentAndUpdateState_({
+                                          type,
+                                          initSegment,
+                                          map,
+                                          playlist
+                                      }) {
+            // "The EXT-X-MAP tag specifies how to obtain the Media Initialization Section
+            // (Section 3) required to parse the applicable Media Segments.  It applies to every
+            // Media Segment that appears after it in the Playlist until the next EXT-X-MAP tag
+            // or until the end of the playlist."
+            // https://tools.ietf.org/html/draft-pantos-http-live-streaming-23#section-4.3.2.5
+            if (map) {
+                const id = initSegmentId(map);
+                if (this.activeInitSegmentId_ === id) {
+                    // don't need to re-append the init segment if the ID matches
+                    return null;
+                } // a map-specified init segment takes priority over any transmuxed (or otherwise
+                // obtained) init segment
+                //
+                // this also caches the init segment for later use
+
+                initSegment = this.initSegmentForMap(map, true).bytes;
+                this.activeInitSegmentId_ = id;
+            } // We used to always prepend init segments for video, however, that shouldn't be
+            // necessary. Instead, we should only append on changes, similar to what we've always
+            // done for audio. This is more important (though may not be that important) for
+            // frame-by-frame appending for LHLS, simply because of the increased quantity of
+            // appends.
+
+            if (initSegment && this.appendInitSegment_[type]) {
+                // Make sure we track the playlist that we last used for the init segment, so that
+                // we can re-append the init segment in the event that we get data from a new
+                // playlist. Discontinuities and track changes are handled in other sections.
+                this.playlistOfLastInitSegment_[type] = playlist; // Disable future init segment appends for this type. Until a change is necessary.
+
+                this.appendInitSegment_[type] = false; // we need to clear out the fmp4 active init segment id, since
+                // we are appending the muxer init segment
+
+                this.activeInitSegmentId_ = null;
+                return initSegment;
+            }
+            return null;
+        }
+        handleQuotaExceededError_({
+                                      segmentInfo,
+                                      type,
+                                      bytes
+                                  }, error) {
+            const audioBuffered = this.sourceUpdater_.audioBuffered();
+            const videoBuffered = this.sourceUpdater_.videoBuffered(); // For now we're ignoring any notion of gaps in the buffer, but they, in theory,
+            // should be cleared out during the buffer removals. However, log in case it helps
+            // debug.
+
+            if (audioBuffered.length > 1) {
+                this.logger_('On QUOTA_EXCEEDED_ERR, found gaps in the audio buffer: ' + timeRangesToArray(audioBuffered).join(', '));
+            }
+            if (videoBuffered.length > 1) {
+                this.logger_('On QUOTA_EXCEEDED_ERR, found gaps in the video buffer: ' + timeRangesToArray(videoBuffered).join(', '));
+            }
+            const audioBufferStart = audioBuffered.length ? audioBuffered.start(0) : 0;
+            const audioBufferEnd = audioBuffered.length ? audioBuffered.end(audioBuffered.length - 1) : 0;
+            const videoBufferStart = videoBuffered.length ? videoBuffered.start(0) : 0;
+            const videoBufferEnd = videoBuffered.length ? videoBuffered.end(videoBuffered.length - 1) : 0;
+            if (audioBufferEnd - audioBufferStart <= MIN_BACK_BUFFER && videoBufferEnd - videoBufferStart <= MIN_BACK_BUFFER) {
+                // Can't remove enough buffer to make room for new segment (or the browser doesn't
+                // allow for appends of segments this size). In the future, it may be possible to
+                // split up the segment and append in pieces, but for now, error out this playlist
+                // in an attempt to switch to a more manageable rendition.
+                this.logger_('On QUOTA_EXCEEDED_ERR, single segment too large to append to ' + 'buffer, triggering an error. ' + `Appended byte length: ${bytes.byteLength}, ` + `audio buffer: ${timeRangesToArray(audioBuffered).join(', ')}, ` + `video buffer: ${timeRangesToArray(videoBuffered).join(', ')}, `);
+                this.error({
+                    message: 'Quota exceeded error with append of a single segment of content',
+                    excludeUntil: Infinity
+                });
+                this.trigger('error');
+                return;
+            } // To try to resolve the quota exceeded error, clear back buffer and retry. This means
+            // that the segment-loader should block on future events until this one is handled, so
+            // that it doesn't keep moving onto further segments. Adding the call to the call
+            // queue will prevent further appends until waitingOnRemove_ and
+            // quotaExceededErrorRetryTimeout_ are cleared.
+            //
+            // Note that this will only block the current loader. In the case of demuxed content,
+            // the other load may keep filling as fast as possible. In practice, this should be
+            // OK, as it is a rare case when either audio has a high enough bitrate to fill up a
+            // source buffer, or video fills without enough room for audio to append (and without
+            // the availability of clearing out seconds of back buffer to make room for audio).
+            // But it might still be good to handle this case in the future as a TODO.
+
+            this.waitingOnRemove_ = true;
+            this.callQueue_.push(this.appendToSourceBuffer_.bind(this, {
+                segmentInfo,
+                type,
+                bytes
+            }));
+            const currentTime = this.currentTime_(); // Try to remove as much audio and video as possible to make room for new content
+            // before retrying.
+
+            const timeToRemoveUntil = currentTime - MIN_BACK_BUFFER;
+            this.logger_(`On QUOTA_EXCEEDED_ERR, removing audio/video from 0 to ${timeToRemoveUntil}`);
+            this.remove(0, timeToRemoveUntil, () => {
+                this.logger_(`On QUOTA_EXCEEDED_ERR, retrying append in ${MIN_BACK_BUFFER}s`);
+                this.waitingOnRemove_ = false; // wait the length of time alotted in the back buffer to prevent wasted
+                // attempts (since we can't clear less than the minimum)
+
+                this.quotaExceededErrorRetryTimeout_ = window.setTimeout(() => {
+                    this.logger_('On QUOTA_EXCEEDED_ERR, re-processing call queue');
+                    this.quotaExceededErrorRetryTimeout_ = null;
+                    this.processCallQueue_();
+                }, MIN_BACK_BUFFER * 1000);
+            }, true);
+        }
+        handleAppendError_({
+                               segmentInfo,
+                               type,
+                               bytes
+                           }, error) {
+            // if there's no error, nothing to do
+            if (!error) {
+                return;
+            }
+            if (error.code === QUOTA_EXCEEDED_ERR) {
+                this.handleQuotaExceededError_({
+                    segmentInfo,
+                    type,
+                    bytes
+                }); // A quota exceeded error should be recoverable with a future re-append, so no need
+                // to trigger an append error.
+
+                return;
+            }
+            this.logger_('Received non QUOTA_EXCEEDED_ERR on append', error);
+            this.error(`${type} append of ${bytes.length}b failed for segment ` + `#${segmentInfo.mediaIndex} in playlist ${segmentInfo.playlist.id}`); // If an append errors, we often can't recover.
+            // (see https://w3c.github.io/media-source/#sourcebuffer-append-error).
+            //
+            // Trigger a special error so that it can be handled separately from normal,
+            // recoverable errors.
+
+            this.trigger('appenderror');
+        }
+        appendToSourceBuffer_({
+                                  segmentInfo,
+                                  type,
+                                  initSegment,
+                                  data,
+                                  bytes
+                              }) {
+            // If this is a re-append, bytes were already created and don't need to be recreated
+            if (!bytes) {
+                const segments = [data];
+                let byteLength = data.byteLength;
+                if (initSegment) {
+                    // if the media initialization segment is changing, append it before the content
+                    // segment
+                    segments.unshift(initSegment);
+                    byteLength += initSegment.byteLength;
+                } // Technically we should be OK appending the init segment separately, however, we
+                // haven't yet tested that, and prepending is how we have always done things.
+
+                bytes = concatSegments({
+                    bytes: byteLength,
+                    segments
+                });
+            }
+            this.sourceUpdater_.appendBuffer({
+                segmentInfo,
+                type,
+                bytes
+            }, this.handleAppendError_.bind(this, {
+                segmentInfo,
+                type,
+                bytes
+            }));
+        }
+        handleSegmentTimingInfo_(type, requestId, segmentTimingInfo) {
+            if (!this.pendingSegment_ || requestId !== this.pendingSegment_.requestId) {
+                return;
+            }
+            const segment = this.pendingSegment_.segment;
+            const timingInfoProperty = `${type}TimingInfo`;
+            if (!segment[timingInfoProperty]) {
+                segment[timingInfoProperty] = {};
+            }
+            segment[timingInfoProperty].transmuxerPrependedSeconds = segmentTimingInfo.prependedContentDuration || 0;
+            segment[timingInfoProperty].transmuxedPresentationStart = segmentTimingInfo.start.presentation;
+            segment[timingInfoProperty].transmuxedDecodeStart = segmentTimingInfo.start.decode;
+            segment[timingInfoProperty].transmuxedPresentationEnd = segmentTimingInfo.end.presentation;
+            segment[timingInfoProperty].transmuxedDecodeEnd = segmentTimingInfo.end.decode; // mainly used as a reference for debugging
+
+            segment[timingInfoProperty].baseMediaDecodeTime = segmentTimingInfo.baseMediaDecodeTime;
+        }
+        appendData_(segmentInfo, result) {
+            const {
+                type,
+                data
+            } = result;
+            if (!data || !data.byteLength) {
+                return;
+            }
+            if (type === 'audio' && this.audioDisabled_) {
+                return;
+            }
+            const initSegment = this.getInitSegmentAndUpdateState_({
+                type,
+                initSegment: result.initSegment,
+                playlist: segmentInfo.playlist,
+                map: segmentInfo.isFmp4 ? segmentInfo.segment.map : null
+            });
+            this.appendToSourceBuffer_({
+                segmentInfo,
+                type,
+                initSegment,
+                data
+            });
+        }
+        /**
+         * load a specific segment from a request into the buffer
+         *
+         * @private
+         */
+
+        loadSegment_(segmentInfo) {
+            this.state = 'WAITING';
+            this.pendingSegment_ = segmentInfo;
+            this.trimBackBuffer_(segmentInfo);
+            if (typeof segmentInfo.timestampOffset === 'number') {
+                if (this.transmuxer_) {
+                    this.transmuxer_.postMessage({
+                        action: 'clearAllMp4Captions'
+                    });
+                }
+            }
+            if (!this.hasEnoughInfoToLoad_()) {
+                this.loadQueue_.push(() => {
+                    // regenerate the audioAppendStart, timestampOffset, etc as they
+                    // may have changed since this function was added to the queue.
+                    const options = _extends$1({}, segmentInfo, {
+                        forceTimestampOffset: true
+                    });
+                    _extends$1(segmentInfo, this.generateSegmentInfo_(options));
+                    this.isPendingTimestampOffset_ = false;
+                    this.updateTransmuxerAndRequestSegment_(segmentInfo);
+                });
+                return;
+            }
+            this.updateTransmuxerAndRequestSegment_(segmentInfo);
+        }
+        updateTransmuxerAndRequestSegment_(segmentInfo) {
+            // We'll update the source buffer's timestamp offset once we have transmuxed data, but
+            // the transmuxer still needs to be updated before then.
+            //
+            // Even though keepOriginalTimestamps is set to true for the transmuxer, timestamp
+            // offset must be passed to the transmuxer for stream correcting adjustments.
+            if (this.shouldUpdateTransmuxerTimestampOffset_(segmentInfo.timestampOffset)) {
+                this.gopBuffer_.length = 0; // gopsToAlignWith was set before the GOP buffer was cleared
+
+                segmentInfo.gopsToAlignWith = [];
+                this.timeMapping_ = 0; // reset values in the transmuxer since a discontinuity should start fresh
+
+                this.transmuxer_.postMessage({
+                    action: 'reset'
+                });
+                this.transmuxer_.postMessage({
+                    action: 'setTimestampOffset',
+                    timestampOffset: segmentInfo.timestampOffset
+                });
+            }
+            const simpleSegment = this.createSimplifiedSegmentObj_(segmentInfo);
+            const isEndOfStream = this.isEndOfStream_(segmentInfo.mediaIndex, segmentInfo.playlist, segmentInfo.partIndex);
+            const isWalkingForward = this.mediaIndex !== null;
+            const isDiscontinuity = segmentInfo.timeline !== this.currentTimeline_ &&
+                // currentTimeline starts at -1, so we shouldn't end the timeline switching to 0,
+                // the first timeline
+                segmentInfo.timeline > 0;
+            const isEndOfTimeline = isEndOfStream || isWalkingForward && isDiscontinuity;
+            this.logger_(`Requesting ${segmentInfoString(segmentInfo)}`); // If there's an init segment associated with this segment, but it is not cached (identified by a lack of bytes),
+            // then this init segment has never been seen before and should be appended.
+            //
+            // At this point the content type (audio/video or both) is not yet known, but it should be safe to set
+            // both to true and leave the decision of whether to append the init segment to append time.
+
+            if (simpleSegment.map && !simpleSegment.map.bytes) {
+                this.logger_('going to request init segment.');
+                this.appendInitSegment_ = {
+                    video: true,
+                    audio: true
+                };
+            }
+            segmentInfo.abortRequests = mediaSegmentRequest({
+                xhr: this.vhs_.xhr,
+                xhrOptions: this.xhrOptions_,
+                decryptionWorker: this.decrypter_,
+                segment: simpleSegment,
+                abortFn: this.handleAbort_.bind(this, segmentInfo),
+                progressFn: this.handleProgress_.bind(this),
+                trackInfoFn: this.handleTrackInfo_.bind(this),
+                timingInfoFn: this.handleTimingInfo_.bind(this),
+                videoSegmentTimingInfoFn: this.handleSegmentTimingInfo_.bind(this, 'video', segmentInfo.requestId),
+                audioSegmentTimingInfoFn: this.handleSegmentTimingInfo_.bind(this, 'audio', segmentInfo.requestId),
+                captionsFn: this.handleCaptions_.bind(this),
+                isEndOfTimeline,
+                endedTimelineFn: () => {
+                    this.logger_('received endedtimeline callback');
+                },
+                id3Fn: this.handleId3_.bind(this),
+                dataFn: this.handleData_.bind(this),
+                doneFn: this.segmentRequestFinished_.bind(this),
+                onTransmuxerLog: ({
+                                      message,
+                                      level,
+                                      stream
+                                  }) => {
+                    this.logger_(`${segmentInfoString(segmentInfo)} logged from transmuxer stream ${stream} as a ${level}: ${message}`);
+                }
+            });
+        }
+        /**
+         * trim the back buffer so that we don't have too much data
+         * in the source buffer
+         *
+         * @private
+         *
+         * @param {Object} segmentInfo - the current segment
+         */
+
+        trimBackBuffer_(segmentInfo) {
+            const removeToTime = safeBackBufferTrimTime(this.seekable_(), this.currentTime_(), this.playlist_.targetDuration || 10); // Chrome has a hard limit of 150MB of
+            // buffer and a very conservative "garbage collector"
+            // We manually clear out the old buffer to ensure
+            // we don't trigger the QuotaExceeded error
+            // on the source buffer during subsequent appends
+
+            if (removeToTime > 0) {
+                this.remove(0, removeToTime);
+            }
+        }
+        /**
+         * created a simplified copy of the segment object with just the
+         * information necessary to perform the XHR and decryption
+         *
+         * @private
+         *
+         * @param {Object} segmentInfo - the current segment
+         * @return {Object} a simplified segment object copy
+         */
+
+        createSimplifiedSegmentObj_(segmentInfo) {
+            const segment = segmentInfo.segment;
+            const part = segmentInfo.part;
+            const simpleSegment = {
+                resolvedUri: part ? part.resolvedUri : segment.resolvedUri,
+                byterange: part ? part.byterange : segment.byterange,
+                requestId: segmentInfo.requestId,
+                transmuxer: segmentInfo.transmuxer,
+                audioAppendStart: segmentInfo.audioAppendStart,
+                gopsToAlignWith: segmentInfo.gopsToAlignWith,
+                part: segmentInfo.part
+            };
+            const previousSegment = segmentInfo.playlist.segments[segmentInfo.mediaIndex - 1];
+            if (previousSegment && previousSegment.timeline === segment.timeline) {
+                // The baseStartTime of a segment is used to handle rollover when probing the TS
+                // segment to retrieve timing information. Since the probe only looks at the media's
+                // times (e.g., PTS and DTS values of the segment), and doesn't consider the
+                // player's time (e.g., player.currentTime()), baseStartTime should reflect the
+                // media time as well. transmuxedDecodeEnd represents the end time of a segment, in
+                // seconds of media time, so should be used here. The previous segment is used since
+                // the end of the previous segment should represent the beginning of the current
+                // segment, so long as they are on the same timeline.
+                if (previousSegment.videoTimingInfo) {
+                    simpleSegment.baseStartTime = previousSegment.videoTimingInfo.transmuxedDecodeEnd;
+                } else if (previousSegment.audioTimingInfo) {
+                    simpleSegment.baseStartTime = previousSegment.audioTimingInfo.transmuxedDecodeEnd;
+                }
+            }
+            if (segment.key) {
+                // if the media sequence is greater than 2^32, the IV will be incorrect
+                // assuming 10s segments, that would be about 1300 years
+                const iv = segment.key.iv || new Uint32Array([0, 0, 0, segmentInfo.mediaIndex + segmentInfo.playlist.mediaSequence]);
+                simpleSegment.key = this.segmentKey(segment.key);
+                simpleSegment.key.iv = iv;
+            }
+            if (segment.map) {
+                simpleSegment.map = this.initSegmentForMap(segment.map);
+            }
+            return simpleSegment;
+        }
+        saveTransferStats_(stats) {
+            // every request counts as a media request even if it has been aborted
+            // or canceled due to a timeout
+            this.mediaRequests += 1;
+            if (stats) {
+                this.mediaBytesTransferred += stats.bytesReceived;
+                this.mediaTransferDuration += stats.roundTripTime;
+            }
+        }
+        saveBandwidthRelatedStats_(duration, stats) {
+            // byteLength will be used for throughput, and should be based on bytes receieved,
+            // which we only know at the end of the request and should reflect total bytes
+            // downloaded rather than just bytes processed from components of the segment
+            this.pendingSegment_.byteLength = stats.bytesReceived;
+            if (duration < MIN_SEGMENT_DURATION_TO_SAVE_STATS) {
+                this.logger_(`Ignoring segment's bandwidth because its duration of ${duration}` + ` is less than the min to record ${MIN_SEGMENT_DURATION_TO_SAVE_STATS}`);
+                return;
+            }
+            this.bandwidth = stats.bandwidth;
+            this.roundTrip = stats.roundTripTime;
+        }
+        handleTimeout_() {
+            // although the VTT segment loader bandwidth isn't really used, it's good to
+            // maintain functinality between segment loaders
+            this.mediaRequestsTimedout += 1;
+            this.bandwidth = 1;
+            this.roundTrip = NaN;
+            this.trigger('bandwidthupdate');
+            this.trigger('timeout');
+        }
+        /**
+         * Handle the callback from the segmentRequest function and set the
+         * associated SegmentLoader state and errors if necessary
+         *
+         * @private
+         */
+
+        segmentRequestFinished_(error, simpleSegment, result) {
+            // TODO handle special cases, e.g., muxed audio/video but only audio in the segment
+            // check the call queue directly since this function doesn't need to deal with any
+            // data, and can continue even if the source buffers are not set up and we didn't get
+            // any data from the segment
+            if (this.callQueue_.length) {
+                this.callQueue_.push(this.segmentRequestFinished_.bind(this, error, simpleSegment, result));
+                return;
+            }
+            this.saveTransferStats_(simpleSegment.stats); // The request was aborted and the SegmentLoader has already been reset
+
+            if (!this.pendingSegment_) {
+                return;
+            } // the request was aborted and the SegmentLoader has already started
+            // another request. this can happen when the timeout for an aborted
+            // request triggers due to a limitation in the XHR library
+            // do not count this as any sort of request or we risk double-counting
+
+            if (simpleSegment.requestId !== this.pendingSegment_.requestId) {
+                return;
+            } // an error occurred from the active pendingSegment_ so reset everything
+
+            if (error) {
+                this.pendingSegment_ = null;
+                this.state = 'READY'; // aborts are not a true error condition and nothing corrective needs to be done
+
+                if (error.code === REQUEST_ERRORS.ABORTED) {
+                    return;
+                }
+                this.pause(); // the error is really just that at least one of the requests timed-out
+                // set the bandwidth to a very low value and trigger an ABR switch to
+                // take emergency action
+
+                if (error.code === REQUEST_ERRORS.TIMEOUT) {
+                    this.handleTimeout_();
+                    return;
+                } // if control-flow has arrived here, then the error is real
+                // emit an error event to exclude the current playlist
+
+                this.mediaRequestsErrored += 1;
+                this.error(error);
+                this.trigger('error');
+                return;
+            }
+            const segmentInfo = this.pendingSegment_; // the response was a success so set any bandwidth stats the request
+            // generated for ABR purposes
+
+            this.saveBandwidthRelatedStats_(segmentInfo.duration, simpleSegment.stats);
+            segmentInfo.endOfAllRequests = simpleSegment.endOfAllRequests;
+            if (result.gopInfo) {
+                this.gopBuffer_ = updateGopBuffer(this.gopBuffer_, result.gopInfo, this.safeAppend_);
+            } // Although we may have already started appending on progress, we shouldn't switch the
+            // state away from loading until we are officially done loading the segment data.
+
+            this.state = 'APPENDING'; // used for testing
+
+            this.trigger('appending');
+            this.waitForAppendsToComplete_(segmentInfo);
+        }
+        setTimeMapping_(timeline) {
+            const timelineMapping = this.syncController_.mappingForTimeline(timeline);
+            if (timelineMapping !== null) {
+                this.timeMapping_ = timelineMapping;
+            }
+        }
+        updateMediaSecondsLoaded_(segment) {
+            if (typeof segment.start === 'number' && typeof segment.end === 'number') {
+                this.mediaSecondsLoaded += segment.end - segment.start;
+            } else {
+                this.mediaSecondsLoaded += segment.duration;
+            }
+        }
+        shouldUpdateTransmuxerTimestampOffset_(timestampOffset) {
+            if (timestampOffset === null) {
+                return false;
+            } // note that we're potentially using the same timestamp offset for both video and
+            // audio
+
+            if (this.loaderType_ === 'main' && timestampOffset !== this.sourceUpdater_.videoTimestampOffset()) {
+                return true;
+            }
+            if (!this.audioDisabled_ && timestampOffset !== this.sourceUpdater_.audioTimestampOffset()) {
+                return true;
+            }
+            return false;
+        }
+        trueSegmentStart_({
+                              currentStart,
+                              playlist,
+                              mediaIndex,
+                              firstVideoFrameTimeForData,
+                              currentVideoTimestampOffset,
+                              useVideoTimingInfo,
+                              videoTimingInfo,
+                              audioTimingInfo
+                          }) {
+            if (typeof currentStart !== 'undefined') {
+                // if start was set once, keep using it
+                return currentStart;
+            }
+            if (!useVideoTimingInfo) {
+                return audioTimingInfo.start;
+            }
+            const previousSegment = playlist.segments[mediaIndex - 1]; // The start of a segment should be the start of the first full frame contained
+            // within that segment. Since the transmuxer maintains a cache of incomplete data
+            // from and/or the last frame seen, the start time may reflect a frame that starts
+            // in the previous segment. Check for that case and ensure the start time is
+            // accurate for the segment.
+
+            if (mediaIndex === 0 || !previousSegment || typeof previousSegment.start === 'undefined' || previousSegment.end !== firstVideoFrameTimeForData + currentVideoTimestampOffset) {
+                return firstVideoFrameTimeForData;
+            }
+            return videoTimingInfo.start;
+        }
+        waitForAppendsToComplete_(segmentInfo) {
+            const trackInfo = this.getCurrentMediaInfo_(segmentInfo);
+            if (!trackInfo) {
+                this.error({
+                    message: 'No starting media returned, likely due to an unsupported media format.',
+                    playlistExclusionDuration: Infinity
+                });
+                this.trigger('error');
+                return;
+            } // Although transmuxing is done, appends may not yet be finished. Throw a marker
+            // on each queue this loader is responsible for to ensure that the appends are
+            // complete.
+
+            const {
+                hasAudio,
+                hasVideo,
+                isMuxed
+            } = trackInfo;
+            const waitForVideo = this.loaderType_ === 'main' && hasVideo;
+            const waitForAudio = !this.audioDisabled_ && hasAudio && !isMuxed;
+            segmentInfo.waitingOnAppends = 0; // segments with no data
+
+            if (!segmentInfo.hasAppendedData_) {
+                if (!segmentInfo.timingInfo && typeof segmentInfo.timestampOffset === 'number') {
+                    // When there's no audio or video data in the segment, there's no audio or video
+                    // timing information.
+                    //
+                    // If there's no audio or video timing information, then the timestamp offset
+                    // can't be adjusted to the appropriate value for the transmuxer and source
+                    // buffers.
+                    //
+                    // Therefore, the next segment should be used to set the timestamp offset.
+                    this.isPendingTimestampOffset_ = true;
+                } // override settings for metadata only segments
+
+                segmentInfo.timingInfo = {
+                    start: 0
+                };
+                segmentInfo.waitingOnAppends++;
+                if (!this.isPendingTimestampOffset_) {
+                    // update the timestampoffset
+                    this.updateSourceBufferTimestampOffset_(segmentInfo); // make sure the metadata queue is processed even though we have
+                    // no video/audio data.
+
+                    this.processMetadataQueue_();
+                } // append is "done" instantly with no data.
+
+                this.checkAppendsDone_(segmentInfo);
+                return;
+            } // Since source updater could call back synchronously, do the increments first.
+
+            if (waitForVideo) {
+                segmentInfo.waitingOnAppends++;
+            }
+            if (waitForAudio) {
+                segmentInfo.waitingOnAppends++;
+            }
+            if (waitForVideo) {
+                this.sourceUpdater_.videoQueueCallback(this.checkAppendsDone_.bind(this, segmentInfo));
+            }
+            if (waitForAudio) {
+                this.sourceUpdater_.audioQueueCallback(this.checkAppendsDone_.bind(this, segmentInfo));
+            }
+        }
+        checkAppendsDone_(segmentInfo) {
+            if (this.checkForAbort_(segmentInfo.requestId)) {
+                return;
+            }
+            segmentInfo.waitingOnAppends--;
+            if (segmentInfo.waitingOnAppends === 0) {
+                this.handleAppendsDone_();
+            }
+        }
+        checkForIllegalMediaSwitch(trackInfo) {
+            const illegalMediaSwitchError = illegalMediaSwitch(this.loaderType_, this.getCurrentMediaInfo_(), trackInfo);
+            if (illegalMediaSwitchError) {
+                this.error({
+                    message: illegalMediaSwitchError,
+                    playlistExclusionDuration: Infinity
+                });
+                this.trigger('error');
+                return true;
+            }
+            return false;
+        }
+        updateSourceBufferTimestampOffset_(segmentInfo) {
+            if (segmentInfo.timestampOffset === null ||
+                // we don't yet have the start for whatever media type (video or audio) has
+                // priority, timing-wise, so we must wait
+                typeof segmentInfo.timingInfo.start !== 'number' ||
+                // already updated the timestamp offset for this segment
+                segmentInfo.changedTimestampOffset ||
+                // the alt audio loader should not be responsible for setting the timestamp offset
+                this.loaderType_ !== 'main') {
+                return;
+            }
+            let didChange = false; // Primary timing goes by video, and audio is trimmed in the transmuxer, meaning that
+            // the timing info here comes from video. In the event that the audio is longer than
+            // the video, this will trim the start of the audio.
+            // This also trims any offset from 0 at the beginning of the media
+
+            segmentInfo.timestampOffset -= this.getSegmentStartTimeForTimestampOffsetCalculation_({
+                videoTimingInfo: segmentInfo.segment.videoTimingInfo,
+                audioTimingInfo: segmentInfo.segment.audioTimingInfo,
+                timingInfo: segmentInfo.timingInfo
+            }); // In the event that there are part segment downloads, each will try to update the
+            // timestamp offset. Retaining this bit of state prevents us from updating in the
+            // future (within the same segment), however, there may be a better way to handle it.
+
+            segmentInfo.changedTimestampOffset = true;
+            if (segmentInfo.timestampOffset !== this.sourceUpdater_.videoTimestampOffset()) {
+                this.sourceUpdater_.videoTimestampOffset(segmentInfo.timestampOffset);
+                didChange = true;
+            }
+            if (segmentInfo.timestampOffset !== this.sourceUpdater_.audioTimestampOffset()) {
+                this.sourceUpdater_.audioTimestampOffset(segmentInfo.timestampOffset);
+                didChange = true;
+            }
+            if (didChange) {
+                this.trigger('timestampoffset');
+            }
+        }
+        getSegmentStartTimeForTimestampOffsetCalculation_({
+                                                              videoTimingInfo,
+                                                              audioTimingInfo,
+                                                              timingInfo
+                                                          }) {
+            if (!this.useDtsForTimestampOffset_) {
+                return timingInfo.start;
+            }
+            if (videoTimingInfo && typeof videoTimingInfo.transmuxedDecodeStart === 'number') {
+                return videoTimingInfo.transmuxedDecodeStart;
+            } // handle audio only
+
+            if (audioTimingInfo && typeof audioTimingInfo.transmuxedDecodeStart === 'number') {
+                return audioTimingInfo.transmuxedDecodeStart;
+            } // handle content not transmuxed (e.g., MP4)
+
+            return timingInfo.start;
+        }
+        updateTimingInfoEnd_(segmentInfo) {
+            segmentInfo.timingInfo = segmentInfo.timingInfo || {};
+            const trackInfo = this.getMediaInfo_();
+            const useVideoTimingInfo = this.loaderType_ === 'main' && trackInfo && trackInfo.hasVideo;
+            const prioritizedTimingInfo = useVideoTimingInfo && segmentInfo.videoTimingInfo ? segmentInfo.videoTimingInfo : segmentInfo.audioTimingInfo;
+            if (!prioritizedTimingInfo) {
+                return;
+            }
+            segmentInfo.timingInfo.end = typeof prioritizedTimingInfo.end === 'number' ?
+                // End time may not exist in a case where we aren't parsing the full segment (one
+                // current example is the case of fmp4), so use the rough duration to calculate an
+                // end time.
+                prioritizedTimingInfo.end : prioritizedTimingInfo.start + segmentInfo.duration;
+        }
+        /**
+         * callback to run when appendBuffer is finished. detects if we are
+         * in a good state to do things with the data we got, or if we need
+         * to wait for more
+         *
+         * @private
+         */
+
+        handleAppendsDone_() {
+            // appendsdone can cause an abort
+            if (this.pendingSegment_) {
+                this.trigger('appendsdone');
+            }
+            if (!this.pendingSegment_) {
+                this.state = 'READY'; // TODO should this move into this.checkForAbort to speed up requests post abort in
+                // all appending cases?
+
+                if (!this.paused()) {
+                    this.monitorBuffer_();
+                }
+                return;
+            }
+            const segmentInfo = this.pendingSegment_; // Now that the end of the segment has been reached, we can set the end time. It's
+            // best to wait until all appends are done so we're sure that the primary media is
+            // finished (and we have its end time).
+
+            this.updateTimingInfoEnd_(segmentInfo);
+            if (this.shouldSaveSegmentTimingInfo_) {
+                // Timeline mappings should only be saved for the main loader. This is for multiple
+                // reasons:
+                //
+                // 1) Only one mapping is saved per timeline, meaning that if both the audio loader
+                //    and the main loader try to save the timeline mapping, whichever comes later
+                //    will overwrite the first. In theory this is OK, as the mappings should be the
+                //    same, however, it breaks for (2)
+                // 2) In the event of a live stream, the initial live point will make for a somewhat
+                //    arbitrary mapping. If audio and video streams are not perfectly in-sync, then
+                //    the mapping will be off for one of the streams, dependent on which one was
+                //    first saved (see (1)).
+                // 3) Primary timing goes by video in VHS, so the mapping should be video.
+                //
+                // Since the audio loader will wait for the main loader to load the first segment,
+                // the main loader will save the first timeline mapping, and ensure that there won't
+                // be a case where audio loads two segments without saving a mapping (thus leading
+                // to missing segment timing info).
+                this.syncController_.saveSegmentTimingInfo({
+                    segmentInfo,
+                    shouldSaveTimelineMapping: this.loaderType_ === 'main'
+                });
+            }
+            const segmentDurationMessage = getTroublesomeSegmentDurationMessage(segmentInfo, this.sourceType_);
+            if (segmentDurationMessage) {
+                if (segmentDurationMessage.severity === 'warn') {
+                    videojs.log.warn(segmentDurationMessage.message);
+                } else {
+                    this.logger_(segmentDurationMessage.message);
+                }
+            }
+            this.recordThroughput_(segmentInfo);
+            this.pendingSegment_ = null;
+            this.state = 'READY';
+            if (segmentInfo.isSyncRequest) {
+                this.trigger('syncinfoupdate'); // if the sync request was not appended
+                // then it was not the correct segment.
+                // throw it away and use the data it gave us
+                // to get the correct one.
+
+                if (!segmentInfo.hasAppendedData_) {
+                    this.logger_(`Throwing away un-appended sync request ${segmentInfoString(segmentInfo)}`);
+                    return;
+                }
+            }
+            this.logger_(`Appended ${segmentInfoString(segmentInfo)}`);
+            this.addSegmentMetadataCue_(segmentInfo);
+            this.fetchAtBuffer_ = true;
+            if (this.currentTimeline_ !== segmentInfo.timeline) {
+                this.timelineChangeController_.lastTimelineChange({
+                    type: this.loaderType_,
+                    from: this.currentTimeline_,
+                    to: segmentInfo.timeline
+                }); // If audio is not disabled, the main segment loader is responsible for updating
+                // the audio timeline as well. If the content is video only, this won't have any
+                // impact.
+
+                if (this.loaderType_ === 'main' && !this.audioDisabled_) {
+                    this.timelineChangeController_.lastTimelineChange({
+                        type: 'audio',
+                        from: this.currentTimeline_,
+                        to: segmentInfo.timeline
+                    });
+                }
+            }
+            this.currentTimeline_ = segmentInfo.timeline; // We must update the syncinfo to recalculate the seekable range before
+            // the following conditional otherwise it may consider this a bad "guess"
+            // and attempt to resync when the post-update seekable window and live
+            // point would mean that this was the perfect segment to fetch
+
+            this.trigger('syncinfoupdate');
+            const segment = segmentInfo.segment;
+            const part = segmentInfo.part;
+            const badSegmentGuess = segment.end && this.currentTime_() - segment.end > segmentInfo.playlist.targetDuration * 3;
+            const badPartGuess = part && part.end && this.currentTime_() - part.end > segmentInfo.playlist.partTargetDuration * 3; // If we previously appended a segment/part that ends more than 3 part/targetDurations before
+            // the currentTime_ that means that our conservative guess was too conservative.
+            // In that case, reset the loader state so that we try to use any information gained
+            // from the previous request to create a new, more accurate, sync-point.
+
+            if (badSegmentGuess || badPartGuess) {
+                this.logger_(`bad ${badSegmentGuess ? 'segment' : 'part'} ${segmentInfoString(segmentInfo)}`);
+                this.resetEverything();
+                return;
+            }
+            const isWalkingForward = this.mediaIndex !== null; // Don't do a rendition switch unless we have enough time to get a sync segment
+            // and conservatively guess
+
+            if (isWalkingForward) {
+                this.trigger('bandwidthupdate');
+            }
+            this.trigger('progress');
+            this.mediaIndex = segmentInfo.mediaIndex;
+            this.partIndex = segmentInfo.partIndex; // any time an update finishes and the last segment is in the
+            // buffer, end the stream. this ensures the "ended" event will
+            // fire if playback reaches that point.
+
+            if (this.isEndOfStream_(segmentInfo.mediaIndex, segmentInfo.playlist, segmentInfo.partIndex)) {
+                this.endOfStream();
+            } // used for testing
+
+            this.trigger('appended');
+            if (segmentInfo.hasAppendedData_) {
+                this.mediaAppends++;
+            }
+            if (!this.paused()) {
+                this.monitorBuffer_();
+            }
+        }
+        /**
+         * Records the current throughput of the decrypt, transmux, and append
+         * portion of the semgment pipeline. `throughput.rate` is a the cumulative
+         * moving average of the throughput. `throughput.count` is the number of
+         * data points in the average.
+         *
+         * @private
+         * @param {Object} segmentInfo the object returned by loadSegment
+         */
+
+        recordThroughput_(segmentInfo) {
+            if (segmentInfo.duration < MIN_SEGMENT_DURATION_TO_SAVE_STATS) {
+                this.logger_(`Ignoring segment's throughput because its duration of ${segmentInfo.duration}` + ` is less than the min to record ${MIN_SEGMENT_DURATION_TO_SAVE_STATS}`);
+                return;
+            }
+            const rate = this.throughput.rate; // Add one to the time to ensure that we don't accidentally attempt to divide
+            // by zero in the case where the throughput is ridiculously high
+
+            const segmentProcessingTime = Date.now() - segmentInfo.endOfAllRequests + 1; // Multiply by 8000 to convert from bytes/millisecond to bits/second
+
+            const segmentProcessingThroughput = Math.floor(segmentInfo.byteLength / segmentProcessingTime * 8 * 1000); // This is just a cumulative moving average calculation:
+            //   newAvg = oldAvg + (sample - oldAvg) / (sampleCount + 1)
+
+            this.throughput.rate += (segmentProcessingThroughput - rate) / ++this.throughput.count;
+        }
+        /**
+         * Adds a cue to the segment-metadata track with some metadata information about the
+         * segment
+         *
+         * @private
+         * @param {Object} segmentInfo
+         *        the object returned by loadSegment
+         * @method addSegmentMetadataCue_
+         */
+
+        addSegmentMetadataCue_(segmentInfo) {
+            if (!this.segmentMetadataTrack_) {
+                return;
+            }
+            const segment = segmentInfo.segment;
+            const start = segment.start;
+            const end = segment.end; // Do not try adding the cue if the start and end times are invalid.
+
+            if (!finite(start) || !finite(end)) {
+                return;
+            }
+            removeCuesFromTrack(start, end, this.segmentMetadataTrack_);
+            const Cue = window.WebKitDataCue || window.VTTCue;
+            const value = {
+                custom: segment.custom,
+                dateTimeObject: segment.dateTimeObject,
+                dateTimeString: segment.dateTimeString,
+                bandwidth: segmentInfo.playlist.attributes.BANDWIDTH,
+                resolution: segmentInfo.playlist.attributes.RESOLUTION,
+                codecs: segmentInfo.playlist.attributes.CODECS,
+                byteLength: segmentInfo.byteLength,
+                uri: segmentInfo.uri,
+                timeline: segmentInfo.timeline,
+                playlist: segmentInfo.playlist.id,
+                start,
+                end
+            };
+            const data = JSON.stringify(value);
+            const cue = new Cue(start, end, data); // Attach the metadata to the value property of the cue to keep consistency between
+            // the differences of WebKitDataCue in safari and VTTCue in other browsers
+
+            cue.value = value;
+            this.segmentMetadataTrack_.addCue(cue);
+        }
+    }
+    function noop() {}
+    const toTitleCase = function (string) {
+        if (typeof string !== 'string') {
+            return string;
+        }
+        return string.replace(/./, w => w.toUpperCase());
+    };
+
+    /**
+     * @file source-updater.js
+     */
+    const bufferTypes = ['video', 'audio'];
+    const updating = (type, sourceUpdater) => {
+        const sourceBuffer = sourceUpdater[`${type}Buffer`];
+        return sourceBuffer && sourceBuffer.updating || sourceUpdater.queuePending[type];
+    };
+    const nextQueueIndexOfType = (type, queue) => {
+        for (let i = 0; i < queue.length; i++) {
+            const queueEntry = queue[i];
+            if (queueEntry.type === 'mediaSource') {
+                // If the next entry is a media source entry (uses multiple source buffers), block
+                // processing to allow it to go through first.
+                return null;
+            }
+            if (queueEntry.type === type) {
+                return i;
+            }
+        }
+        return null;
+    };
+    const shiftQueue = (type, sourceUpdater) => {
+        if (sourceUpdater.queue.length === 0) {
+            return;
+        }
+        let queueIndex = 0;
+        let queueEntry = sourceUpdater.queue[queueIndex];
+        if (queueEntry.type === 'mediaSource') {
+            if (!sourceUpdater.updating() && sourceUpdater.mediaSource.readyState !== 'closed') {
+                sourceUpdater.queue.shift();
+                queueEntry.action(sourceUpdater);
+                if (queueEntry.doneFn) {
+                    queueEntry.doneFn();
+                } // Only specific source buffer actions must wait for async updateend events. Media
+                // Source actions process synchronously. Therefore, both audio and video source
+                // buffers are now clear to process the next queue entries.
+
+                shiftQueue('audio', sourceUpdater);
+                shiftQueue('video', sourceUpdater);
+            } // Media Source actions require both source buffers, so if the media source action
+            // couldn't process yet (because one or both source buffers are busy), block other
+            // queue actions until both are available and the media source action can process.
+
+            return;
+        }
+        if (type === 'mediaSource') {
+            // If the queue was shifted by a media source action (this happens when pushing a
+            // media source action onto the queue), then it wasn't from an updateend event from an
+            // audio or video source buffer, so there's no change from previous state, and no
+            // processing should be done.
+            return;
+        } // Media source queue entries don't need to consider whether the source updater is
+        // started (i.e., source buffers are created) as they don't need the source buffers, but
+        // source buffer queue entries do.
+
+        if (!sourceUpdater.ready() || sourceUpdater.mediaSource.readyState === 'closed' || updating(type, sourceUpdater)) {
+            return;
+        }
+        if (queueEntry.type !== type) {
+            queueIndex = nextQueueIndexOfType(type, sourceUpdater.queue);
+            if (queueIndex === null) {
+                // Either there's no queue entry that uses this source buffer type in the queue, or
+                // there's a media source queue entry before the next entry of this type, in which
+                // case wait for that action to process first.
+                return;
+            }
+            queueEntry = sourceUpdater.queue[queueIndex];
+        }
+        sourceUpdater.queue.splice(queueIndex, 1); // Keep a record that this source buffer type is in use.
+        //
+        // The queue pending operation must be set before the action is performed in the event
+        // that the action results in a synchronous event that is acted upon. For instance, if
+        // an exception is thrown that can be handled, it's possible that new actions will be
+        // appended to an empty queue and immediately executed, but would not have the correct
+        // pending information if this property was set after the action was performed.
+
+        sourceUpdater.queuePending[type] = queueEntry;
+        queueEntry.action(type, sourceUpdater);
+        if (!queueEntry.doneFn) {
+            // synchronous operation, process next entry
+            sourceUpdater.queuePending[type] = null;
+            shiftQueue(type, sourceUpdater);
+            return;
+        }
+    };
+    const cleanupBuffer = (type, sourceUpdater) => {
+        const buffer = sourceUpdater[`${type}Buffer`];
+        const titleType = toTitleCase(type);
+        if (!buffer) {
+            return;
+        }
+        buffer.removeEventListener('updateend', sourceUpdater[`on${titleType}UpdateEnd_`]);
+        buffer.removeEventListener('error', sourceUpdater[`on${titleType}Error_`]);
+        sourceUpdater.codecs[type] = null;
+        sourceUpdater[`${type}Buffer`] = null;
+    };
+    const inSourceBuffers = (mediaSource, sourceBuffer) => mediaSource && sourceBuffer && Array.prototype.indexOf.call(mediaSource.sourceBuffers, sourceBuffer) !== -1;
+    const actions = {
+        appendBuffer: (bytes, segmentInfo, onError) => (type, sourceUpdater) => {
+            const sourceBuffer = sourceUpdater[`${type}Buffer`]; // can't do anything if the media source / source buffer is null
+            // or the media source does not contain this source buffer.
+
+            if (!inSourceBuffers(sourceUpdater.mediaSource, sourceBuffer)) {
+                return;
+            }
+            sourceUpdater.logger_(`Appending segment ${segmentInfo.mediaIndex}'s ${bytes.length} bytes to ${type}Buffer`);
+            try {
+                sourceBuffer.appendBuffer(bytes);
+            } catch (e) {
+                sourceUpdater.logger_(`Error with code ${e.code} ` + (e.code === QUOTA_EXCEEDED_ERR ? '(QUOTA_EXCEEDED_ERR) ' : '') + `when appending segment ${segmentInfo.mediaIndex} to ${type}Buffer`);
+                sourceUpdater.queuePending[type] = null;
+                onError(e);
+            }
+        },
+        remove: (start, end) => (type, sourceUpdater) => {
+            const sourceBuffer = sourceUpdater[`${type}Buffer`]; // can't do anything if the media source / source buffer is null
+            // or the media source does not contain this source buffer.
+
+            if (!inSourceBuffers(sourceUpdater.mediaSource, sourceBuffer)) {
+                return;
+            }
+            sourceUpdater.logger_(`Removing ${start} to ${end} from ${type}Buffer`);
+            try {
+                sourceBuffer.remove(start, end);
+            } catch (e) {
+                sourceUpdater.logger_(`Remove ${start} to ${end} from ${type}Buffer failed`);
+            }
+        },
+        timestampOffset: offset => (type, sourceUpdater) => {
+            const sourceBuffer = sourceUpdater[`${type}Buffer`]; // can't do anything if the media source / source buffer is null
+            // or the media source does not contain this source buffer.
+
+            if (!inSourceBuffers(sourceUpdater.mediaSource, sourceBuffer)) {
+                return;
+            }
+            sourceUpdater.logger_(`Setting ${type}timestampOffset to ${offset}`);
+            sourceBuffer.timestampOffset = offset;
+        },
+        callback: callback => (type, sourceUpdater) => {
+            callback();
+        },
+        endOfStream: error => sourceUpdater => {
+            if (sourceUpdater.mediaSource.readyState !== 'open') {
+                return;
+            }
+            sourceUpdater.logger_(`Calling mediaSource endOfStream(${error || ''})`);
+            try {
+                sourceUpdater.mediaSource.endOfStream(error);
+            } catch (e) {
+                videojs.log.warn('Failed to call media source endOfStream', e);
+            }
+        },
+        duration: duration => sourceUpdater => {
+            sourceUpdater.logger_(`Setting mediaSource duration to ${duration}`);
+            try {
+                sourceUpdater.mediaSource.duration = duration;
+            } catch (e) {
+                videojs.log.warn('Failed to set media source duration', e);
+            }
+        },
+        abort: () => (type, sourceUpdater) => {
+            if (sourceUpdater.mediaSource.readyState !== 'open') {
+                return;
+            }
+            const sourceBuffer = sourceUpdater[`${type}Buffer`]; // can't do anything if the media source / source buffer is null
+            // or the media source does not contain this source buffer.
+
+            if (!inSourceBuffers(sourceUpdater.mediaSource, sourceBuffer)) {
+                return;
+            }
+            sourceUpdater.logger_(`calling abort on ${type}Buffer`);
+            try {
+                sourceBuffer.abort();
+            } catch (e) {
+                videojs.log.warn(`Failed to abort on ${type}Buffer`, e);
+            }
+        },
+        addSourceBuffer: (type, codec) => sourceUpdater => {
+            const titleType = toTitleCase(type);
+            const mime = getMimeForCodec(codec);
+            sourceUpdater.logger_(`Adding ${type}Buffer with codec ${codec} to mediaSource`);
+            const sourceBuffer = sourceUpdater.mediaSource.addSourceBuffer(mime);
+            sourceBuffer.addEventListener('updateend', sourceUpdater[`on${titleType}UpdateEnd_`]);
+            sourceBuffer.addEventListener('error', sourceUpdater[`on${titleType}Error_`]);
+            sourceUpdater.codecs[type] = codec;
+            sourceUpdater[`${type}Buffer`] = sourceBuffer;
+        },
+        removeSourceBuffer: type => sourceUpdater => {
+            const sourceBuffer = sourceUpdater[`${type}Buffer`];
+            cleanupBuffer(type, sourceUpdater); // can't do anything if the media source / source buffer is null
+            // or the media source does not contain this source buffer.
+
+            if (!inSourceBuffers(sourceUpdater.mediaSource, sourceBuffer)) {
+                return;
+            }
+            sourceUpdater.logger_(`Removing ${type}Buffer with codec ${sourceUpdater.codecs[type]} from mediaSource`);
+            try {
+                sourceUpdater.mediaSource.removeSourceBuffer(sourceBuffer);
+            } catch (e) {
+                videojs.log.warn(`Failed to removeSourceBuffer ${type}Buffer`, e);
+            }
+        },
+        changeType: codec => (type, sourceUpdater) => {
+            const sourceBuffer = sourceUpdater[`${type}Buffer`];
+            const mime = getMimeForCodec(codec); // can't do anything if the media source / source buffer is null
+            // or the media source does not contain this source buffer.
+
+            if (!inSourceBuffers(sourceUpdater.mediaSource, sourceBuffer)) {
+                return;
+            } // do not update codec if we don't need to.
+
+            if (sourceUpdater.codecs[type] === codec) {
+                return;
+            }
+            sourceUpdater.logger_(`changing ${type}Buffer codec from ${sourceUpdater.codecs[type]} to ${codec}`);
+            sourceBuffer.changeType(mime);
+            sourceUpdater.codecs[type] = codec;
+        }
+    };
+    const pushQueue = ({
+                           type,
+                           sourceUpdater,
+                           action,
+                           doneFn,
+                           name
+                       }) => {
+        sourceUpdater.queue.push({
+            type,
+            action,
+            doneFn,
+            name
+        });
+        shiftQueue(type, sourceUpdater);
+    };
+    const onUpdateend = (type, sourceUpdater) => e => {
+        // Although there should, in theory, be a pending action for any updateend receieved,
+        // there are some actions that may trigger updateend events without set definitions in
+        // the w3c spec. For instance, setting the duration on the media source may trigger
+        // updateend events on source buffers. This does not appear to be in the spec. As such,
+        // if we encounter an updateend without a corresponding pending action from our queue
+        // for that source buffer type, process the next action.
+        if (sourceUpdater.queuePending[type]) {
+            const doneFn = sourceUpdater.queuePending[type].doneFn;
+            sourceUpdater.queuePending[type] = null;
+            if (doneFn) {
+                // if there's an error, report it
+                doneFn(sourceUpdater[`${type}Error_`]);
+            }
+        }
+        shiftQueue(type, sourceUpdater);
+    };
+    /**
+     * A queue of callbacks to be serialized and applied when a
+     * MediaSource and its associated SourceBuffers are not in the
+     * updating state. It is used by the segment loader to update the
+     * underlying SourceBuffers when new data is loaded, for instance.
+     *
+     * @class SourceUpdater
+     * @param {MediaSource} mediaSource the MediaSource to create the SourceBuffer from
+     * @param {string} mimeType the desired MIME type of the underlying SourceBuffer
+     */
+
+    class SourceUpdater extends videojs.EventTarget {
+        constructor(mediaSource) {
+            super();
+            this.mediaSource = mediaSource;
+            this.sourceopenListener_ = () => shiftQueue('mediaSource', this);
+            this.mediaSource.addEventListener('sourceopen', this.sourceopenListener_);
+            this.logger_ = logger('SourceUpdater'); // initial timestamp offset is 0
+
+            this.audioTimestampOffset_ = 0;
+            this.videoTimestampOffset_ = 0;
+            this.queue = [];
+            this.queuePending = {
+                audio: null,
+                video: null
+            };
+            this.delayedAudioAppendQueue_ = [];
+            this.videoAppendQueued_ = false;
+            this.codecs = {};
+            this.onVideoUpdateEnd_ = onUpdateend('video', this);
+            this.onAudioUpdateEnd_ = onUpdateend('audio', this);
+            this.onVideoError_ = e => {
+                // used for debugging
+                this.videoError_ = e;
+            };
+            this.onAudioError_ = e => {
+                // used for debugging
+                this.audioError_ = e;
+            };
+            this.createdSourceBuffers_ = false;
+            this.initializedEme_ = false;
+            this.triggeredReady_ = false;
+        }
+        initializedEme() {
+            this.initializedEme_ = true;
+            this.triggerReady();
+        }
+        hasCreatedSourceBuffers() {
+            // if false, likely waiting on one of the segment loaders to get enough data to create
+            // source buffers
+            return this.createdSourceBuffers_;
+        }
+        hasInitializedAnyEme() {
+            return this.initializedEme_;
+        }
+        ready() {
+            return this.hasCreatedSourceBuffers() && this.hasInitializedAnyEme();
+        }
+        createSourceBuffers(codecs) {
+            if (this.hasCreatedSourceBuffers()) {
+                // already created them before
+                return;
+            } // the intial addOrChangeSourceBuffers will always be
+            // two add buffers.
+
+            this.addOrChangeSourceBuffers(codecs);
+            this.createdSourceBuffers_ = true;
+            this.trigger('createdsourcebuffers');
+            this.triggerReady();
+        }
+        triggerReady() {
+            // only allow ready to be triggered once, this prevents the case
+            // where:
+            // 1. we trigger createdsourcebuffers
+            // 2. ie 11 synchronously initializates eme
+            // 3. the synchronous initialization causes us to trigger ready
+            // 4. We go back to the ready check in createSourceBuffers and ready is triggered again.
+            if (this.ready() && !this.triggeredReady_) {
+                this.triggeredReady_ = true;
+                this.trigger('ready');
+            }
+        }
+        /**
+         * Add a type of source buffer to the media source.
+         *
+         * @param {string} type
+         *        The type of source buffer to add.
+         *
+         * @param {string} codec
+         *        The codec to add the source buffer with.
+         */
+
+        addSourceBuffer(type, codec) {
+            pushQueue({
+                type: 'mediaSource',
+                sourceUpdater: this,
+                action: actions.addSourceBuffer(type, codec),
+                name: 'addSourceBuffer'
+            });
+        }
+        /**
+         * call abort on a source buffer.
+         *
+         * @param {string} type
+         *        The type of source buffer to call abort on.
+         */
+
+        abort(type) {
+            pushQueue({
+                type,
+                sourceUpdater: this,
+                action: actions.abort(type),
+                name: 'abort'
+            });
+        }
+        /**
+         * Call removeSourceBuffer and remove a specific type
+         * of source buffer on the mediaSource.
+         *
+         * @param {string} type
+         *        The type of source buffer to remove.
+         */
+
+        removeSourceBuffer(type) {
+            if (!this.canRemoveSourceBuffer()) {
+                videojs.log.error('removeSourceBuffer is not supported!');
+                return;
+            }
+            pushQueue({
+                type: 'mediaSource',
+                sourceUpdater: this,
+                action: actions.removeSourceBuffer(type),
+                name: 'removeSourceBuffer'
+            });
+        }
+        /**
+         * Whether or not the removeSourceBuffer function is supported
+         * on the mediaSource.
+         *
+         * @return {boolean}
+         *          if removeSourceBuffer can be called.
+         */
+
+        canRemoveSourceBuffer() {
+            // IE reports that it supports removeSourceBuffer, but often throws
+            // errors when attempting to use the function. So we report that it
+            // does not support removeSourceBuffer. As of Firefox 83 removeSourceBuffer
+            // throws errors, so we report that it does not support this as well.
+            return !videojs.browser.IE_VERSION && !videojs.browser.IS_FIREFOX && window.MediaSource && window.MediaSource.prototype && typeof window.MediaSource.prototype.removeSourceBuffer === 'function';
+        }
+        /**
+         * Whether or not the changeType function is supported
+         * on our SourceBuffers.
+         *
+         * @return {boolean}
+         *         if changeType can be called.
+         */
+
+        static canChangeType() {
+            return window.SourceBuffer && window.SourceBuffer.prototype && typeof window.SourceBuffer.prototype.changeType === 'function';
+        }
+        /**
+         * Whether or not the changeType function is supported
+         * on our SourceBuffers.
+         *
+         * @return {boolean}
+         *         if changeType can be called.
+         */
+
+        canChangeType() {
+            return this.constructor.canChangeType();
+        }
+        /**
+         * Call the changeType function on a source buffer, given the code and type.
+         *
+         * @param {string} type
+         *        The type of source buffer to call changeType on.
+         *
+         * @param {string} codec
+         *        The codec string to change type with on the source buffer.
+         */
+
+        changeType(type, codec) {
+            if (!this.canChangeType()) {
+                videojs.log.error('changeType is not supported!');
+                return;
+            }
+            pushQueue({
+                type,
+                sourceUpdater: this,
+                action: actions.changeType(codec),
+                name: 'changeType'
+            });
+        }
+        /**
+         * Add source buffers with a codec or, if they are already created,
+         * call changeType on source buffers using changeType.
+         *
+         * @param {Object} codecs
+         *        Codecs to switch to
+         */
+
+        addOrChangeSourceBuffers(codecs) {
+            if (!codecs || typeof codecs !== 'object' || Object.keys(codecs).length === 0) {
+                throw new Error('Cannot addOrChangeSourceBuffers to undefined codecs');
+            }
+            Object.keys(codecs).forEach(type => {
+                const codec = codecs[type];
+                if (!this.hasCreatedSourceBuffers()) {
+                    return this.addSourceBuffer(type, codec);
+                }
+                if (this.canChangeType()) {
+                    this.changeType(type, codec);
+                }
+            });
+        }
+        /**
+         * Queue an update to append an ArrayBuffer.
+         *
+         * @param {MediaObject} object containing audioBytes and/or videoBytes
+         * @param {Function} done the function to call when done
+         * @see http://www.w3.org/TR/media-source/#widl-SourceBuffer-appendBuffer-void-ArrayBuffer-data
+         */
+
+        appendBuffer(options, doneFn) {
+            const {
+                segmentInfo,
+                type,
+                bytes
+            } = options;
+            this.processedAppend_ = true;
+            if (type === 'audio' && this.videoBuffer && !this.videoAppendQueued_) {
+                this.delayedAudioAppendQueue_.push([options, doneFn]);
+                this.logger_(`delayed audio append of ${bytes.length} until video append`);
+                return;
+            } // In the case of certain errors, for instance, QUOTA_EXCEEDED_ERR, updateend will
+            // not be fired. This means that the queue will be blocked until the next action
+            // taken by the segment-loader. Provide a mechanism for segment-loader to handle
+            // these errors by calling the doneFn with the specific error.
+
+            const onError = doneFn;
+            pushQueue({
+                type,
+                sourceUpdater: this,
+                action: actions.appendBuffer(bytes, segmentInfo || {
+                    mediaIndex: -1
+                }, onError),
+                doneFn,
+                name: 'appendBuffer'
+            });
+            if (type === 'video') {
+                this.videoAppendQueued_ = true;
+                if (!this.delayedAudioAppendQueue_.length) {
+                    return;
+                }
+                const queue = this.delayedAudioAppendQueue_.slice();
+                this.logger_(`queuing delayed audio ${queue.length} appendBuffers`);
+                this.delayedAudioAppendQueue_.length = 0;
+                queue.forEach(que => {
+                    this.appendBuffer.apply(this, que);
+                });
+            }
+        }
+        /**
+         * Get the audio buffer's buffered timerange.
+         *
+         * @return {TimeRange}
+         *         The audio buffer's buffered time range
+         */
+
+        audioBuffered() {
+            // no media source/source buffer or it isn't in the media sources
+            // source buffer list
+            if (!inSourceBuffers(this.mediaSource, this.audioBuffer)) {
+                return createTimeRanges();
+            }
+            return this.audioBuffer.buffered ? this.audioBuffer.buffered : createTimeRanges();
+        }
+        /**
+         * Get the video buffer's buffered timerange.
+         *
+         * @return {TimeRange}
+         *         The video buffer's buffered time range
+         */
+
+        videoBuffered() {
+            // no media source/source buffer or it isn't in the media sources
+            // source buffer list
+            if (!inSourceBuffers(this.mediaSource, this.videoBuffer)) {
+                return createTimeRanges();
+            }
+            return this.videoBuffer.buffered ? this.videoBuffer.buffered : createTimeRanges();
+        }
+        /**
+         * Get a combined video/audio buffer's buffered timerange.
+         *
+         * @return {TimeRange}
+         *         the combined time range
+         */
+
+        buffered() {
+            const video = inSourceBuffers(this.mediaSource, this.videoBuffer) ? this.videoBuffer : null;
+            const audio = inSourceBuffers(this.mediaSource, this.audioBuffer) ? this.audioBuffer : null;
+            if (audio && !video) {
+                return this.audioBuffered();
+            }
+            if (video && !audio) {
+                return this.videoBuffered();
+            }
+            return bufferIntersection(this.audioBuffered(), this.videoBuffered());
+        }
+        /**
+         * Add a callback to the queue that will set duration on the mediaSource.
+         *
+         * @param {number} duration
+         *        The duration to set
+         *
+         * @param {Function} [doneFn]
+         *        function to run after duration has been set.
+         */
+
+        setDuration(duration, doneFn = noop) {
+            // In order to set the duration on the media source, it's necessary to wait for all
+            // source buffers to no longer be updating. "If the updating attribute equals true on
+            // any SourceBuffer in sourceBuffers, then throw an InvalidStateError exception and
+            // abort these steps." (source: https://www.w3.org/TR/media-source/#attributes).
+            pushQueue({
+                type: 'mediaSource',
+                sourceUpdater: this,
+                action: actions.duration(duration),
+                name: 'duration',
+                doneFn
+            });
+        }
+        /**
+         * Add a mediaSource endOfStream call to the queue
+         *
+         * @param {Error} [error]
+         *        Call endOfStream with an error
+         *
+         * @param {Function} [doneFn]
+         *        A function that should be called when the
+         *        endOfStream call has finished.
+         */
+
+        endOfStream(error = null, doneFn = noop) {
+            if (typeof error !== 'string') {
+                error = undefined;
+            } // In order to set the duration on the media source, it's necessary to wait for all
+            // source buffers to no longer be updating. "If the updating attribute equals true on
+            // any SourceBuffer in sourceBuffers, then throw an InvalidStateError exception and
+            // abort these steps." (source: https://www.w3.org/TR/media-source/#attributes).
+
+            pushQueue({
+                type: 'mediaSource',
+                sourceUpdater: this,
+                action: actions.endOfStream(error),
+                name: 'endOfStream',
+                doneFn
+            });
+        }
+        /**
+         * Queue an update to remove a time range from the buffer.
+         *
+         * @param {number} start where to start the removal
+         * @param {number} end where to end the removal
+         * @param {Function} [done=noop] optional callback to be executed when the remove
+         * operation is complete
+         * @see http://www.w3.org/TR/media-source/#widl-SourceBuffer-remove-void-double-start-unrestricted-double-end
+         */
+
+        removeAudio(start, end, done = noop) {
+            if (!this.audioBuffered().length || this.audioBuffered().end(0) === 0) {
+                done();
+                return;
+            }
+            pushQueue({
+                type: 'audio',
+                sourceUpdater: this,
+                action: actions.remove(start, end),
+                doneFn: done,
+                name: 'remove'
+            });
+        }
+        /**
+         * Queue an update to remove a time range from the buffer.
+         *
+         * @param {number} start where to start the removal
+         * @param {number} end where to end the removal
+         * @param {Function} [done=noop] optional callback to be executed when the remove
+         * operation is complete
+         * @see http://www.w3.org/TR/media-source/#widl-SourceBuffer-remove-void-double-start-unrestricted-double-end
+         */
+
+        removeVideo(start, end, done = noop) {
+            if (!this.videoBuffered().length || this.videoBuffered().end(0) === 0) {
+                done();
+                return;
+            }
+            pushQueue({
+                type: 'video',
+                sourceUpdater: this,
+                action: actions.remove(start, end),
+                doneFn: done,
+                name: 'remove'
+            });
+        }
+        /**
+         * Whether the underlying sourceBuffer is updating or not
+         *
+         * @return {boolean} the updating status of the SourceBuffer
+         */
+
+        updating() {
+            // the audio/video source buffer is updating
+            if (updating('audio', this) || updating('video', this)) {
+                return true;
+            }
+            return false;
+        }
+        /**
+         * Set/get the timestampoffset on the audio SourceBuffer
+         *
+         * @return {number} the timestamp offset
+         */
+
+        audioTimestampOffset(offset) {
+            if (typeof offset !== 'undefined' && this.audioBuffer &&
+                // no point in updating if it's the same
+                this.audioTimestampOffset_ !== offset) {
+                pushQueue({
+                    type: 'audio',
+                    sourceUpdater: this,
+                    action: actions.timestampOffset(offset),
+                    name: 'timestampOffset'
+                });
+                this.audioTimestampOffset_ = offset;
+            }
+            return this.audioTimestampOffset_;
+        }
+        /**
+         * Set/get the timestampoffset on the video SourceBuffer
+         *
+         * @return {number} the timestamp offset
+         */
+
+        videoTimestampOffset(offset) {
+            if (typeof offset !== 'undefined' && this.videoBuffer &&
+                // no point in updating if it's the same
+                this.videoTimestampOffset !== offset) {
+                pushQueue({
+                    type: 'video',
+                    sourceUpdater: this,
+                    action: actions.timestampOffset(offset),
+                    name: 'timestampOffset'
+                });
+                this.videoTimestampOffset_ = offset;
+            }
+            return this.videoTimestampOffset_;
+        }
+        /**
+         * Add a function to the queue that will be called
+         * when it is its turn to run in the audio queue.
+         *
+         * @param {Function} callback
+         *        The callback to queue.
+         */
+
+        audioQueueCallback(callback) {
+            if (!this.audioBuffer) {
+                return;
+            }
+            pushQueue({
+                type: 'audio',
+                sourceUpdater: this,
+                action: actions.callback(callback),
+                name: 'callback'
+            });
+        }
+        /**
+         * Add a function to the queue that will be called
+         * when it is its turn to run in the video queue.
+         *
+         * @param {Function} callback
+         *        The callback to queue.
+         */
+
+        videoQueueCallback(callback) {
+            if (!this.videoBuffer) {
+                return;
+            }
+            pushQueue({
+                type: 'video',
+                sourceUpdater: this,
+                action: actions.callback(callback),
+                name: 'callback'
+            });
+        }
+        /**
+         * dispose of the source updater and the underlying sourceBuffer
+         */
+
+        dispose() {
+            this.trigger('dispose');
+            bufferTypes.forEach(type => {
+                this.abort(type);
+                if (this.canRemoveSourceBuffer()) {
+                    this.removeSourceBuffer(type);
+                } else {
+                    this[`${type}QueueCallback`](() => cleanupBuffer(type, this));
+                }
+            });
+            this.videoAppendQueued_ = false;
+            this.delayedAudioAppendQueue_.length = 0;
+            if (this.sourceopenListener_) {
+                this.mediaSource.removeEventListener('sourceopen', this.sourceopenListener_);
+            }
+            this.off();
+        }
+    }
+    const uint8ToUtf8 = uintArray => decodeURIComponent(escape(String.fromCharCode.apply(null, uintArray)));
+
+    /**
+     * @file vtt-segment-loader.js
+     */
+    const VTT_LINE_TERMINATORS = new Uint8Array('\n\n'.split('').map(char => char.charCodeAt(0)));
+    class NoVttJsError extends Error {
+        constructor() {
+            super('Trying to parse received VTT cues, but there is no WebVTT. Make sure vtt.js is loaded.');
+        }
+    }
+    /**
+     * An object that manages segment loading and appending.
+     *
+     * @class VTTSegmentLoader
+     * @param {Object} options required and optional options
+     * @extends videojs.EventTarget
+     */
+
+    class VTTSegmentLoader extends SegmentLoader {
+        constructor(settings, options = {}) {
+            super(settings, options); // SegmentLoader requires a MediaSource be specified or it will throw an error;
+            // however, VTTSegmentLoader has no need of a media source, so delete the reference
+
+            this.mediaSource_ = null;
+            this.subtitlesTrack_ = null;
+            this.loaderType_ = 'subtitle';
+            this.featuresNativeTextTracks_ = settings.featuresNativeTextTracks;
+            this.loadVttJs = settings.loadVttJs; // The VTT segment will have its own time mappings. Saving VTT segment timing info in
+            // the sync controller leads to improper behavior.
+
+            this.shouldSaveSegmentTimingInfo_ = false;
+        }
+        createTransmuxer_() {
+            // don't need to transmux any subtitles
+            return null;
+        }
+        /**
+         * Indicates which time ranges are buffered
+         *
+         * @return {TimeRange}
+         *         TimeRange object representing the current buffered ranges
+         */
+
+        buffered_() {
+            if (!this.subtitlesTrack_ || !this.subtitlesTrack_.cues || !this.subtitlesTrack_.cues.length) {
+                return createTimeRanges();
+            }
+            const cues = this.subtitlesTrack_.cues;
+            const start = cues[0].startTime;
+            const end = cues[cues.length - 1].startTime;
+            return createTimeRanges([[start, end]]);
+        }
+        /**
+         * Gets and sets init segment for the provided map
+         *
+         * @param {Object} map
+         *        The map object representing the init segment to get or set
+         * @param {boolean=} set
+         *        If true, the init segment for the provided map should be saved
+         * @return {Object}
+         *         map object for desired init segment
+         */
+
+        initSegmentForMap(map, set = false) {
+            if (!map) {
+                return null;
+            }
+            const id = initSegmentId(map);
+            let storedMap = this.initSegments_[id];
+            if (set && !storedMap && map.bytes) {
+                // append WebVTT line terminators to the media initialization segment if it exists
+                // to follow the WebVTT spec (https://w3c.github.io/webvtt/#file-structure) that
+                // requires two or more WebVTT line terminators between the WebVTT header and the
+                // rest of the file
+                const combinedByteLength = VTT_LINE_TERMINATORS.byteLength + map.bytes.byteLength;
+                const combinedSegment = new Uint8Array(combinedByteLength);
+                combinedSegment.set(map.bytes);
+                combinedSegment.set(VTT_LINE_TERMINATORS, map.bytes.byteLength);
+                this.initSegments_[id] = storedMap = {
+                    resolvedUri: map.resolvedUri,
+                    byterange: map.byterange,
+                    bytes: combinedSegment
+                };
+            }
+            return storedMap || map;
+        }
+        /**
+         * Returns true if all configuration required for loading is present, otherwise false.
+         *
+         * @return {boolean} True if the all configuration is ready for loading
+         * @private
+         */
+
+        couldBeginLoading_() {
+            return this.playlist_ && this.subtitlesTrack_ && !this.paused();
+        }
+        /**
+         * Once all the starting parameters have been specified, begin
+         * operation. This method should only be invoked from the INIT
+         * state.
+         *
+         * @private
+         */
+
+        init_() {
+            this.state = 'READY';
+            this.resetEverything();
+            return this.monitorBuffer_();
+        }
+        /**
+         * Set a subtitle track on the segment loader to add subtitles to
+         *
+         * @param {TextTrack=} track
+         *        The text track to add loaded subtitles to
+         * @return {TextTrack}
+         *        Returns the subtitles track
+         */
+
+        track(track) {
+            if (typeof track === 'undefined') {
+                return this.subtitlesTrack_;
+            }
+            this.subtitlesTrack_ = track; // if we were unpaused but waiting for a sourceUpdater, start
+            // buffering now
+
+            if (this.state === 'INIT' && this.couldBeginLoading_()) {
+                this.init_();
+            }
+            return this.subtitlesTrack_;
+        }
+        /**
+         * Remove any data in the source buffer between start and end times
+         *
+         * @param {number} start - the start time of the region to remove from the buffer
+         * @param {number} end - the end time of the region to remove from the buffer
+         */
+
+        remove(start, end) {
+            removeCuesFromTrack(start, end, this.subtitlesTrack_);
+        }
+        /**
+         * fill the buffer with segements unless the sourceBuffers are
+         * currently updating
+         *
+         * Note: this function should only ever be called by monitorBuffer_
+         * and never directly
+         *
+         * @private
+         */
+
+        fillBuffer_() {
+            // see if we need to begin loading immediately
+            const segmentInfo = this.chooseNextRequest_();
+            if (!segmentInfo) {
+                return;
+            }
+            if (this.syncController_.timestampOffsetForTimeline(segmentInfo.timeline) === null) {
+                // We don't have the timestamp offset that we need to sync subtitles.
+                // Rerun on a timestamp offset or user interaction.
+                const checkTimestampOffset = () => {
+                    this.state = 'READY';
+                    if (!this.paused()) {
+                        // if not paused, queue a buffer check as soon as possible
+                        this.monitorBuffer_();
+                    }
+                };
+                this.syncController_.one('timestampoffset', checkTimestampOffset);
+                this.state = 'WAITING_ON_TIMELINE';
+                return;
+            }
+            this.loadSegment_(segmentInfo);
+        } // never set a timestamp offset for vtt segments.
+
+        timestampOffsetForSegment_() {
+            return null;
+        }
+        chooseNextRequest_() {
+            return this.skipEmptySegments_(super.chooseNextRequest_());
+        }
+        /**
+         * Prevents the segment loader from requesting segments we know contain no subtitles
+         * by walking forward until we find the next segment that we don't know whether it is
+         * empty or not.
+         *
+         * @param {Object} segmentInfo
+         *        a segment info object that describes the current segment
+         * @return {Object}
+         *         a segment info object that describes the current segment
+         */
+
+        skipEmptySegments_(segmentInfo) {
+            while (segmentInfo && segmentInfo.segment.empty) {
+                // stop at the last possible segmentInfo
+                if (segmentInfo.mediaIndex + 1 >= segmentInfo.playlist.segments.length) {
+                    segmentInfo = null;
+                    break;
+                }
+                segmentInfo = this.generateSegmentInfo_({
+                    playlist: segmentInfo.playlist,
+                    mediaIndex: segmentInfo.mediaIndex + 1,
+                    startOfSegment: segmentInfo.startOfSegment + segmentInfo.duration,
+                    isSyncRequest: segmentInfo.isSyncRequest
+                });
+            }
+            return segmentInfo;
+        }
+        stopForError(error) {
+            this.error(error);
+            this.state = 'READY';
+            this.pause();
+            this.trigger('error');
+        }
+        /**
+         * append a decrypted segement to the SourceBuffer through a SourceUpdater
+         *
+         * @private
+         */
+
+        segmentRequestFinished_(error, simpleSegment, result) {
+            if (!this.subtitlesTrack_) {
+                this.state = 'READY';
+                return;
+            }
+            this.saveTransferStats_(simpleSegment.stats); // the request was aborted
+
+            if (!this.pendingSegment_) {
+                this.state = 'READY';
+                this.mediaRequestsAborted += 1;
+                return;
+            }
+            if (error) {
+                if (error.code === REQUEST_ERRORS.TIMEOUT) {
+                    this.handleTimeout_();
+                }
+                if (error.code === REQUEST_ERRORS.ABORTED) {
+                    this.mediaRequestsAborted += 1;
+                } else {
+                    this.mediaRequestsErrored += 1;
+                }
+                this.stopForError(error);
+                return;
+            }
+            const segmentInfo = this.pendingSegment_; // although the VTT segment loader bandwidth isn't really used, it's good to
+            // maintain functionality between segment loaders
+
+            this.saveBandwidthRelatedStats_(segmentInfo.duration, simpleSegment.stats); // if this request included a segment key, save that data in the cache
+
+            if (simpleSegment.key) {
+                this.segmentKey(simpleSegment.key, true);
+            }
+            this.state = 'APPENDING'; // used for tests
+
+            this.trigger('appending');
+            const segment = segmentInfo.segment;
+            if (segment.map) {
+                segment.map.bytes = simpleSegment.map.bytes;
+            }
+            segmentInfo.bytes = simpleSegment.bytes; // Make sure that vttjs has loaded, otherwise, load it and wait till it finished loading
+
+            if (typeof window.WebVTT !== 'function' && typeof this.loadVttJs === 'function') {
+                this.state = 'WAITING_ON_VTTJS'; // should be fine to call multiple times
+                // script will be loaded once but multiple listeners will be added to the queue, which is expected.
+
+                this.loadVttJs().then(() => this.segmentRequestFinished_(error, simpleSegment, result), () => this.stopForError({
+                    message: 'Error loading vtt.js'
+                }));
+                return;
+            }
+            segment.requested = true;
+            try {
+                this.parseVTTCues_(segmentInfo);
+            } catch (e) {
+                this.stopForError({
+                    message: e.message
+                });
+                return;
+            }
+            this.updateTimeMapping_(segmentInfo, this.syncController_.timelines[segmentInfo.timeline], this.playlist_);
+            if (segmentInfo.cues.length) {
+                segmentInfo.timingInfo = {
+                    start: segmentInfo.cues[0].startTime,
+                    end: segmentInfo.cues[segmentInfo.cues.length - 1].endTime
+                };
+            } else {
+                segmentInfo.timingInfo = {
+                    start: segmentInfo.startOfSegment,
+                    end: segmentInfo.startOfSegment + segmentInfo.duration
+                };
+            }
+            if (segmentInfo.isSyncRequest) {
+                this.trigger('syncinfoupdate');
+                this.pendingSegment_ = null;
+                this.state = 'READY';
+                return;
+            }
+            segmentInfo.byteLength = segmentInfo.bytes.byteLength;
+            this.mediaSecondsLoaded += segment.duration; // Create VTTCue instances for each cue in the new segment and add them to
+            // the subtitle track
+
+            segmentInfo.cues.forEach(cue => {
+                this.subtitlesTrack_.addCue(this.featuresNativeTextTracks_ ? new window.VTTCue(cue.startTime, cue.endTime, cue.text) : cue);
+            }); // Remove any duplicate cues from the subtitle track. The WebVTT spec allows
+            // cues to have identical time-intervals, but if the text is also identical
+            // we can safely assume it is a duplicate that can be removed (ex. when a cue
+            // "overlaps" VTT segments)
+
+            removeDuplicateCuesFromTrack(this.subtitlesTrack_);
+            this.handleAppendsDone_();
+        }
+        handleData_() {// noop as we shouldn't be getting video/audio data captions
+            // that we do not support here.
+        }
+        updateTimingInfoEnd_() {// noop
+        }
+        /**
+         * Uses the WebVTT parser to parse the segment response
+         *
+         * @throws NoVttJsError
+         *
+         * @param {Object} segmentInfo
+         *        a segment info object that describes the current segment
+         * @private
+         */
+
+        parseVTTCues_(segmentInfo) {
+            let decoder;
+            let decodeBytesToString = false;
+            if (typeof window.WebVTT !== 'function') {
+                // caller is responsible for exception handling.
+                throw new NoVttJsError();
+            }
+            if (typeof window.TextDecoder === 'function') {
+                decoder = new window.TextDecoder('utf8');
+            } else {
+                decoder = window.WebVTT.StringDecoder();
+                decodeBytesToString = true;
+            }
+            const parser = new window.WebVTT.Parser(window, window.vttjs, decoder);
+            segmentInfo.cues = [];
+            segmentInfo.timestampmap = {
+                MPEGTS: 0,
+                LOCAL: 0
+            };
+            parser.oncue = segmentInfo.cues.push.bind(segmentInfo.cues);
+            parser.ontimestampmap = map => {
+                segmentInfo.timestampmap = map;
+            };
+            parser.onparsingerror = error => {
+                videojs.log.warn('Error encountered when parsing cues: ' + error.message);
+            };
+            if (segmentInfo.segment.map) {
+                let mapData = segmentInfo.segment.map.bytes;
+                if (decodeBytesToString) {
+                    mapData = uint8ToUtf8(mapData);
+                }
+                parser.parse(mapData);
+            }
+            let segmentData = segmentInfo.bytes;
+            if (decodeBytesToString) {
+                segmentData = uint8ToUtf8(segmentData);
+            }
+            parser.parse(segmentData);
+            parser.flush();
+        }
+        /**
+         * Updates the start and end times of any cues parsed by the WebVTT parser using
+         * the information parsed from the X-TIMESTAMP-MAP header and a TS to media time mapping
+         * from the SyncController
+         *
+         * @param {Object} segmentInfo
+         *        a segment info object that describes the current segment
+         * @param {Object} mappingObj
+         *        object containing a mapping from TS to media time
+         * @param {Object} playlist
+         *        the playlist object containing the segment
+         * @private
+         */
+
+        updateTimeMapping_(segmentInfo, mappingObj, playlist) {
+            const segment = segmentInfo.segment;
+            if (!mappingObj) {
+                // If the sync controller does not have a mapping of TS to Media Time for the
+                // timeline, then we don't have enough information to update the cue
+                // start/end times
+                return;
+            }
+            if (!segmentInfo.cues.length) {
+                // If there are no cues, we also do not have enough information to figure out
+                // segment timing. Mark that the segment contains no cues so we don't re-request
+                // an empty segment.
+                segment.empty = true;
+                return;
+            }
+            const timestampmap = segmentInfo.timestampmap;
+            const diff = timestampmap.MPEGTS / clock_1 - timestampmap.LOCAL + mappingObj.mapping;
+            segmentInfo.cues.forEach(cue => {
+                // First convert cue time to TS time using the timestamp-map provided within the vtt
+                cue.startTime += diff;
+                cue.endTime += diff;
+            });
+            if (!playlist.syncInfo) {
+                const firstStart = segmentInfo.cues[0].startTime;
+                const lastStart = segmentInfo.cues[segmentInfo.cues.length - 1].startTime;
+                playlist.syncInfo = {
+                    mediaSequence: playlist.mediaSequence + segmentInfo.mediaIndex,
+                    time: Math.min(firstStart, lastStart - segment.duration)
+                };
+            }
+        }
+    }
+
+    /**
+     * @file ad-cue-tags.js
+     */
+    /**
+     * Searches for an ad cue that overlaps with the given mediaTime
+     *
+     * @param {Object} track
+     *        the track to find the cue for
+     *
+     * @param {number} mediaTime
+     *        the time to find the cue at
+     *
+     * @return {Object|null}
+     *         the found cue or null
+     */
+
+    const findAdCue = function (track, mediaTime) {
+        const cues = track.cues;
+        for (let i = 0; i < cues.length; i++) {
+            const cue = cues[i];
+            if (mediaTime >= cue.adStartTime && mediaTime <= cue.adEndTime) {
+                return cue;
+            }
+        }
+        return null;
+    };
+    const updateAdCues = function (media, track, offset = 0) {
+        if (!media.segments) {
+            return;
+        }
+        let mediaTime = offset;
+        let cue;
+        for (let i = 0; i < media.segments.length; i++) {
+            const segment = media.segments[i];
+            if (!cue) {
+                // Since the cues will span for at least the segment duration, adding a fudge
+                // factor of half segment duration will prevent duplicate cues from being
+                // created when timing info is not exact (e.g. cue start time initialized
+                // at 10.006677, but next call mediaTime is 10.003332 )
+                cue = findAdCue(track, mediaTime + segment.duration / 2);
+            }
+            if (cue) {
+                if ('cueIn' in segment) {
+                    // Found a CUE-IN so end the cue
+                    cue.endTime = mediaTime;
+                    cue.adEndTime = mediaTime;
+                    mediaTime += segment.duration;
+                    cue = null;
+                    continue;
+                }
+                if (mediaTime < cue.endTime) {
+                    // Already processed this mediaTime for this cue
+                    mediaTime += segment.duration;
+                    continue;
+                } // otherwise extend cue until a CUE-IN is found
+
+                cue.endTime += segment.duration;
+            } else {
+                if ('cueOut' in segment) {
+                    cue = new window.VTTCue(mediaTime, mediaTime + segment.duration, segment.cueOut);
+                    cue.adStartTime = mediaTime; // Assumes tag format to be
+                    // #EXT-X-CUE-OUT:30
+
+                    cue.adEndTime = mediaTime + parseFloat(segment.cueOut);
+                    track.addCue(cue);
+                }
+                if ('cueOutCont' in segment) {
+                    // Entered into the middle of an ad cue
+                    // Assumes tag formate to be
+                    // #EXT-X-CUE-OUT-CONT:10/30
+                    const [adOffset, adTotal] = segment.cueOutCont.split('/').map(parseFloat);
+                    cue = new window.VTTCue(mediaTime, mediaTime + segment.duration, '');
+                    cue.adStartTime = mediaTime - adOffset;
+                    cue.adEndTime = cue.adStartTime + adTotal;
+                    track.addCue(cue);
+                }
+            }
+            mediaTime += segment.duration;
+        }
+    };
+
+    /**
+     * @file sync-controller.js
+     */
+        // synchronize expired playlist segments.
+        // the max media sequence diff is 48 hours of live stream
+        // content with two second segments. Anything larger than that
+        // will likely be invalid.
+
+    const MAX_MEDIA_SEQUENCE_DIFF_FOR_SYNC = 86400;
+    const syncPointStrategies = [
+        // Stategy "VOD": Handle the VOD-case where the sync-point is *always*
+        //                the equivalence display-time 0 === segment-index 0
+        {
+            name: 'VOD',
+            run: (syncController, playlist, duration, currentTimeline, currentTime) => {
+                if (duration !== Infinity) {
+                    const syncPoint = {
+                        time: 0,
+                        segmentIndex: 0,
+                        partIndex: null
+                    };
+                    return syncPoint;
+                }
+                return null;
+            }
+        },
+        // Stategy "ProgramDateTime": We have a program-date-time tag in this playlist
+        {
+            name: 'ProgramDateTime',
+            run: (syncController, playlist, duration, currentTimeline, currentTime) => {
+                if (!Object.keys(syncController.timelineToDatetimeMappings).length) {
+                    return null;
+                }
+                let syncPoint = null;
+                let lastDistance = null;
+                const partsAndSegments = getPartsAndSegments(playlist);
+                currentTime = currentTime || 0;
+                for (let i = 0; i < partsAndSegments.length; i++) {
+                    // start from the end and loop backwards for live
+                    // or start from the front and loop forwards for non-live
+                    const index = playlist.endList || currentTime === 0 ? i : partsAndSegments.length - (i + 1);
+                    const partAndSegment = partsAndSegments[index];
+                    const segment = partAndSegment.segment;
+                    const datetimeMapping = syncController.timelineToDatetimeMappings[segment.timeline];
+                    if (!datetimeMapping || !segment.dateTimeObject) {
+                        continue;
+                    }
+                    const segmentTime = segment.dateTimeObject.getTime() / 1000;
+                    let start = segmentTime + datetimeMapping; // take part duration into account.
+
+                    if (segment.parts && typeof partAndSegment.partIndex === 'number') {
+                        for (let z = 0; z < partAndSegment.partIndex; z++) {
+                            start += segment.parts[z].duration;
+                        }
+                    }
+                    const distance = Math.abs(currentTime - start); // Once the distance begins to increase, or if distance is 0, we have passed
+                    // currentTime and can stop looking for better candidates
+
+                    if (lastDistance !== null && (distance === 0 || lastDistance < distance)) {
+                        break;
+                    }
+                    lastDistance = distance;
+                    syncPoint = {
+                        time: start,
+                        segmentIndex: partAndSegment.segmentIndex,
+                        partIndex: partAndSegment.partIndex
+                    };
+                }
+                return syncPoint;
+            }
+        },
+        // Stategy "Segment": We have a known time mapping for a timeline and a
+        //                    segment in the current timeline with timing data
+        {
+            name: 'Segment',
+            run: (syncController, playlist, duration, currentTimeline, currentTime) => {
+                let syncPoint = null;
+                let lastDistance = null;
+                currentTime = currentTime || 0;
+                const partsAndSegments = getPartsAndSegments(playlist);
+                for (let i = 0; i < partsAndSegments.length; i++) {
+                    // start from the end and loop backwards for live
+                    // or start from the front and loop forwards for non-live
+                    const index = playlist.endList || currentTime === 0 ? i : partsAndSegments.length - (i + 1);
+                    const partAndSegment = partsAndSegments[index];
+                    const segment = partAndSegment.segment;
+                    const start = partAndSegment.part && partAndSegment.part.start || segment && segment.start;
+                    if (segment.timeline === currentTimeline && typeof start !== 'undefined') {
+                        const distance = Math.abs(currentTime - start); // Once the distance begins to increase, we have passed
+                        // currentTime and can stop looking for better candidates
+
+                        if (lastDistance !== null && lastDistance < distance) {
+                            break;
+                        }
+                        if (!syncPoint || lastDistance === null || lastDistance >= distance) {
+                            lastDistance = distance;
+                            syncPoint = {
+                                time: start,
+                                segmentIndex: partAndSegment.segmentIndex,
+                                partIndex: partAndSegment.partIndex
+                            };
+                        }
+                    }
+                }
+                return syncPoint;
+            }
+        },
+        // Stategy "Discontinuity": We have a discontinuity with a known
+        //                          display-time
+        {
+            name: 'Discontinuity',
+            run: (syncController, playlist, duration, currentTimeline, currentTime) => {
+                let syncPoint = null;
+                currentTime = currentTime || 0;
+                if (playlist.discontinuityStarts && playlist.discontinuityStarts.length) {
+                    let lastDistance = null;
+                    for (let i = 0; i < playlist.discontinuityStarts.length; i++) {
+                        const segmentIndex = playlist.discontinuityStarts[i];
+                        const discontinuity = playlist.discontinuitySequence + i + 1;
+                        const discontinuitySync = syncController.discontinuities[discontinuity];
+                        if (discontinuitySync) {
+                            const distance = Math.abs(currentTime - discontinuitySync.time); // Once the distance begins to increase, we have passed
+                            // currentTime and can stop looking for better candidates
+
+                            if (lastDistance !== null && lastDistance < distance) {
+                                break;
+                            }
+                            if (!syncPoint || lastDistance === null || lastDistance >= distance) {
+                                lastDistance = distance;
+                                syncPoint = {
+                                    time: discontinuitySync.time,
+                                    segmentIndex,
+                                    partIndex: null
+                                };
+                            }
+                        }
+                    }
+                }
+                return syncPoint;
+            }
+        },
+        // Stategy "Playlist": We have a playlist with a known mapping of
+        //                     segment index to display time
+        {
+            name: 'Playlist',
+            run: (syncController, playlist, duration, currentTimeline, currentTime) => {
+                if (playlist.syncInfo) {
+                    const syncPoint = {
+                        time: playlist.syncInfo.time,
+                        segmentIndex: playlist.syncInfo.mediaSequence - playlist.mediaSequence,
+                        partIndex: null
+                    };
+                    return syncPoint;
+                }
+                return null;
+            }
+        }];
+    class SyncController extends videojs.EventTarget {
+        constructor(options = {}) {
+            super(); // ...for synching across variants
+
+            this.timelines = [];
+            this.discontinuities = [];
+            this.timelineToDatetimeMappings = {};
+            this.logger_ = logger('SyncController');
+        }
+        /**
+         * Find a sync-point for the playlist specified
+         *
+         * A sync-point is defined as a known mapping from display-time to
+         * a segment-index in the current playlist.
+         *
+         * @param {Playlist} playlist
+         *        The playlist that needs a sync-point
+         * @param {number} duration
+         *        Duration of the MediaSource (Infinite if playing a live source)
+         * @param {number} currentTimeline
+         *        The last timeline from which a segment was loaded
+         * @return {Object}
+         *          A sync-point object
+         */
+
+        getSyncPoint(playlist, duration, currentTimeline, currentTime) {
+            const syncPoints = this.runStrategies_(playlist, duration, currentTimeline, currentTime);
+            if (!syncPoints.length) {
+                // Signal that we need to attempt to get a sync-point manually
+                // by fetching a segment in the playlist and constructing
+                // a sync-point from that information
+                return null;
+            } // Now find the sync-point that is closest to the currentTime because
+            // that should result in the most accurate guess about which segment
+            // to fetch
+
+            return this.selectSyncPoint_(syncPoints, {
+                key: 'time',
+                value: currentTime
+            });
+        }
+        /**
+         * Calculate the amount of time that has expired off the playlist during playback
+         *
+         * @param {Playlist} playlist
+         *        Playlist object to calculate expired from
+         * @param {number} duration
+         *        Duration of the MediaSource (Infinity if playling a live source)
+         * @return {number|null}
+         *          The amount of time that has expired off the playlist during playback. Null
+         *          if no sync-points for the playlist can be found.
+         */
+
+        getExpiredTime(playlist, duration) {
+            if (!playlist || !playlist.segments) {
+                return null;
+            }
+            const syncPoints = this.runStrategies_(playlist, duration, playlist.discontinuitySequence, 0); // Without sync-points, there is not enough information to determine the expired time
+
+            if (!syncPoints.length) {
+                return null;
+            }
+            const syncPoint = this.selectSyncPoint_(syncPoints, {
+                key: 'segmentIndex',
+                value: 0
+            }); // If the sync-point is beyond the start of the playlist, we want to subtract the
+            // duration from index 0 to syncPoint.segmentIndex instead of adding.
+
+            if (syncPoint.segmentIndex > 0) {
+                syncPoint.time *= -1;
+            }
+            return Math.abs(syncPoint.time + sumDurations({
+                defaultDuration: playlist.targetDuration,
+                durationList: playlist.segments,
+                startIndex: syncPoint.segmentIndex,
+                endIndex: 0
+            }));
+        }
+        /**
+         * Runs each sync-point strategy and returns a list of sync-points returned by the
+         * strategies
+         *
+         * @private
+         * @param {Playlist} playlist
+         *        The playlist that needs a sync-point
+         * @param {number} duration
+         *        Duration of the MediaSource (Infinity if playing a live source)
+         * @param {number} currentTimeline
+         *        The last timeline from which a segment was loaded
+         * @return {Array}
+         *          A list of sync-point objects
+         */
+
+        runStrategies_(playlist, duration, currentTimeline, currentTime) {
+            const syncPoints = []; // Try to find a sync-point in by utilizing various strategies...
+
+            for (let i = 0; i < syncPointStrategies.length; i++) {
+                const strategy = syncPointStrategies[i];
+                const syncPoint = strategy.run(this, playlist, duration, currentTimeline, currentTime);
+                if (syncPoint) {
+                    syncPoint.strategy = strategy.name;
+                    syncPoints.push({
+                        strategy: strategy.name,
+                        syncPoint
+                    });
+                }
+            }
+            return syncPoints;
+        }
+        /**
+         * Selects the sync-point nearest the specified target
+         *
+         * @private
+         * @param {Array} syncPoints
+         *        List of sync-points to select from
+         * @param {Object} target
+         *        Object specifying the property and value we are targeting
+         * @param {string} target.key
+         *        Specifies the property to target. Must be either 'time' or 'segmentIndex'
+         * @param {number} target.value
+         *        The value to target for the specified key.
+         * @return {Object}
+         *          The sync-point nearest the target
+         */
+
+        selectSyncPoint_(syncPoints, target) {
+            let bestSyncPoint = syncPoints[0].syncPoint;
+            let bestDistance = Math.abs(syncPoints[0].syncPoint[target.key] - target.value);
+            let bestStrategy = syncPoints[0].strategy;
+            for (let i = 1; i < syncPoints.length; i++) {
+                const newDistance = Math.abs(syncPoints[i].syncPoint[target.key] - target.value);
+                if (newDistance < bestDistance) {
+                    bestDistance = newDistance;
+                    bestSyncPoint = syncPoints[i].syncPoint;
+                    bestStrategy = syncPoints[i].strategy;
+                }
+            }
+            this.logger_(`syncPoint for [${target.key}: ${target.value}] chosen with strategy` + ` [${bestStrategy}]: [time:${bestSyncPoint.time},` + ` segmentIndex:${bestSyncPoint.segmentIndex}` + (typeof bestSyncPoint.partIndex === 'number' ? `,partIndex:${bestSyncPoint.partIndex}` : '') + ']');
+            return bestSyncPoint;
+        }
+        /**
+         * Save any meta-data present on the segments when segments leave
+         * the live window to the playlist to allow for synchronization at the
+         * playlist level later.
+         *
+         * @param {Playlist} oldPlaylist - The previous active playlist
+         * @param {Playlist} newPlaylist - The updated and most current playlist
+         */
+
+        saveExpiredSegmentInfo(oldPlaylist, newPlaylist) {
+            const mediaSequenceDiff = newPlaylist.mediaSequence - oldPlaylist.mediaSequence; // Ignore large media sequence gaps
+
+            if (mediaSequenceDiff > MAX_MEDIA_SEQUENCE_DIFF_FOR_SYNC) {
+                videojs.log.warn(`Not saving expired segment info. Media sequence gap ${mediaSequenceDiff} is too large.`);
+                return;
+            } // When a segment expires from the playlist and it has a start time
+            // save that information as a possible sync-point reference in future
+
+            for (let i = mediaSequenceDiff - 1; i >= 0; i--) {
+                const lastRemovedSegment = oldPlaylist.segments[i];
+                if (lastRemovedSegment && typeof lastRemovedSegment.start !== 'undefined') {
+                    newPlaylist.syncInfo = {
+                        mediaSequence: oldPlaylist.mediaSequence + i,
+                        time: lastRemovedSegment.start
+                    };
+                    this.logger_(`playlist refresh sync: [time:${newPlaylist.syncInfo.time},` + ` mediaSequence: ${newPlaylist.syncInfo.mediaSequence}]`);
+                    this.trigger('syncinfoupdate');
+                    break;
+                }
+            }
+        }
+        /**
+         * Save the mapping from playlist's ProgramDateTime to display. This should only happen
+         * before segments start to load.
+         *
+         * @param {Playlist} playlist - The currently active playlist
+         */
+
+        setDateTimeMappingForStart(playlist) {
+            // It's possible for the playlist to be updated before playback starts, meaning time
+            // zero is not yet set. If, during these playlist refreshes, a discontinuity is
+            // crossed, then the old time zero mapping (for the prior timeline) would be retained
+            // unless the mappings are cleared.
+            this.timelineToDatetimeMappings = {};
+            if (playlist.segments && playlist.segments.length && playlist.segments[0].dateTimeObject) {
+                const firstSegment = playlist.segments[0];
+                const playlistTimestamp = firstSegment.dateTimeObject.getTime() / 1000;
+                this.timelineToDatetimeMappings[firstSegment.timeline] = -playlistTimestamp;
+            }
+        }
+        /**
+         * Calculates and saves timeline mappings, playlist sync info, and segment timing values
+         * based on the latest timing information.
+         *
+         * @param {Object} options
+         *        Options object
+         * @param {SegmentInfo} options.segmentInfo
+         *        The current active request information
+         * @param {boolean} options.shouldSaveTimelineMapping
+         *        If there's a timeline change, determines if the timeline mapping should be
+         *        saved for timeline mapping and program date time mappings.
+         */
+
+        saveSegmentTimingInfo({
+                                  segmentInfo,
+                                  shouldSaveTimelineMapping
+                              }) {
+            const didCalculateSegmentTimeMapping = this.calculateSegmentTimeMapping_(segmentInfo, segmentInfo.timingInfo, shouldSaveTimelineMapping);
+            const segment = segmentInfo.segment;
+            if (didCalculateSegmentTimeMapping) {
+                this.saveDiscontinuitySyncInfo_(segmentInfo); // If the playlist does not have sync information yet, record that information
+                // now with segment timing information
+
+                if (!segmentInfo.playlist.syncInfo) {
+                    segmentInfo.playlist.syncInfo = {
+                        mediaSequence: segmentInfo.playlist.mediaSequence + segmentInfo.mediaIndex,
+                        time: segment.start
+                    };
+                }
+            }
+            const dateTime = segment.dateTimeObject;
+            if (segment.discontinuity && shouldSaveTimelineMapping && dateTime) {
+                this.timelineToDatetimeMappings[segment.timeline] = -(dateTime.getTime() / 1000);
+            }
+        }
+        timestampOffsetForTimeline(timeline) {
+            if (typeof this.timelines[timeline] === 'undefined') {
+                return null;
+            }
+            return this.timelines[timeline].time;
+        }
+        mappingForTimeline(timeline) {
+            if (typeof this.timelines[timeline] === 'undefined') {
+                return null;
+            }
+            return this.timelines[timeline].mapping;
+        }
+        /**
+         * Use the "media time" for a segment to generate a mapping to "display time" and
+         * save that display time to the segment.
+         *
+         * @private
+         * @param {SegmentInfo} segmentInfo
+         *        The current active request information
+         * @param {Object} timingInfo
+         *        The start and end time of the current segment in "media time"
+         * @param {boolean} shouldSaveTimelineMapping
+         *        If there's a timeline change, determines if the timeline mapping should be
+         *        saved in timelines.
+         * @return {boolean}
+         *          Returns false if segment time mapping could not be calculated
+         */
+
+        calculateSegmentTimeMapping_(segmentInfo, timingInfo, shouldSaveTimelineMapping) {
+            // TODO: remove side effects
+            const segment = segmentInfo.segment;
+            const part = segmentInfo.part;
+            let mappingObj = this.timelines[segmentInfo.timeline];
+            let start;
+            let end;
+            if (typeof segmentInfo.timestampOffset === 'number') {
+                mappingObj = {
+                    time: segmentInfo.startOfSegment,
+                    mapping: segmentInfo.startOfSegment - timingInfo.start
+                };
+                if (shouldSaveTimelineMapping) {
+                    this.timelines[segmentInfo.timeline] = mappingObj;
+                    this.trigger('timestampoffset');
+                    this.logger_(`time mapping for timeline ${segmentInfo.timeline}: ` + `[time: ${mappingObj.time}] [mapping: ${mappingObj.mapping}]`);
+                }
+                start = segmentInfo.startOfSegment;
+                end = timingInfo.end + mappingObj.mapping;
+            } else if (mappingObj) {
+                start = timingInfo.start + mappingObj.mapping;
+                end = timingInfo.end + mappingObj.mapping;
+            } else {
+                return false;
+            }
+            if (part) {
+                part.start = start;
+                part.end = end;
+            } // If we don't have a segment start yet or the start value we got
+            // is less than our current segment.start value, save a new start value.
+            // We have to do this because parts will have segment timing info saved
+            // multiple times and we want segment start to be the earliest part start
+            // value for that segment.
+
+            if (!segment.start || start < segment.start) {
+                segment.start = start;
+            }
+            segment.end = end;
+            return true;
+        }
+        /**
+         * Each time we have discontinuity in the playlist, attempt to calculate the location
+         * in display of the start of the discontinuity and save that. We also save an accuracy
+         * value so that we save values with the most accuracy (closest to 0.)
+         *
+         * @private
+         * @param {SegmentInfo} segmentInfo - The current active request information
+         */
+
+        saveDiscontinuitySyncInfo_(segmentInfo) {
+            const playlist = segmentInfo.playlist;
+            const segment = segmentInfo.segment; // If the current segment is a discontinuity then we know exactly where
+            // the start of the range and it's accuracy is 0 (greater accuracy values
+            // mean more approximation)
+
+            if (segment.discontinuity) {
+                this.discontinuities[segment.timeline] = {
+                    time: segment.start,
+                    accuracy: 0
+                };
+            } else if (playlist.discontinuityStarts && playlist.discontinuityStarts.length) {
+                // Search for future discontinuities that we can provide better timing
+                // information for and save that information for sync purposes
+                for (let i = 0; i < playlist.discontinuityStarts.length; i++) {
+                    const segmentIndex = playlist.discontinuityStarts[i];
+                    const discontinuity = playlist.discontinuitySequence + i + 1;
+                    const mediaIndexDiff = segmentIndex - segmentInfo.mediaIndex;
+                    const accuracy = Math.abs(mediaIndexDiff);
+                    if (!this.discontinuities[discontinuity] || this.discontinuities[discontinuity].accuracy > accuracy) {
+                        let time;
+                        if (mediaIndexDiff < 0) {
+                            time = segment.start - sumDurations({
+                                defaultDuration: playlist.targetDuration,
+                                durationList: playlist.segments,
+                                startIndex: segmentInfo.mediaIndex,
+                                endIndex: segmentIndex
+                            });
+                        } else {
+                            time = segment.end + sumDurations({
+                                defaultDuration: playlist.targetDuration,
+                                durationList: playlist.segments,
+                                startIndex: segmentInfo.mediaIndex + 1,
+                                endIndex: segmentIndex
+                            });
+                        }
+                        this.discontinuities[discontinuity] = {
+                            time,
+                            accuracy
+                        };
+                    }
+                }
+            }
+        }
+        dispose() {
+            this.trigger('dispose');
+            this.off();
+        }
+    }
+
+    /**
+     * The TimelineChangeController acts as a source for segment loaders to listen for and
+     * keep track of latest and pending timeline changes. This is useful to ensure proper
+     * sync, as each loader may need to make a consideration for what timeline the other
+     * loader is on before making changes which could impact the other loader's media.
+     *
+     * @class TimelineChangeController
+     * @extends videojs.EventTarget
+     */
+
+    class TimelineChangeController extends videojs.EventTarget {
+        constructor() {
+            super();
+            this.pendingTimelineChanges_ = {};
+            this.lastTimelineChanges_ = {};
+        }
+        clearPendingTimelineChange(type) {
+            this.pendingTimelineChanges_[type] = null;
+            this.trigger('pendingtimelinechange');
+        }
+        pendingTimelineChange({
+                                  type,
+                                  from,
+                                  to
+                              }) {
+            if (typeof from === 'number' && typeof to === 'number') {
+                this.pendingTimelineChanges_[type] = {
+                    type,
+                    from,
+                    to
+                };
+                this.trigger('pendingtimelinechange');
+            }
+            return this.pendingTimelineChanges_[type];
+        }
+        lastTimelineChange({
+                               type,
+                               from,
+                               to
+                           }) {
+            if (typeof from === 'number' && typeof to === 'number') {
+                this.lastTimelineChanges_[type] = {
+                    type,
+                    from,
+                    to
+                };
+                delete this.pendingTimelineChanges_[type];
+                this.trigger('timelinechange');
+            }
+            return this.lastTimelineChanges_[type];
+        }
+        dispose() {
+            this.trigger('dispose');
+            this.pendingTimelineChanges_ = {};
+            this.lastTimelineChanges_ = {};
+            this.off();
+        }
+    }
+
+    /* rollup-plugin-worker-factory start for worker!/Users/ddashkevich/projects/http-streaming/src/decrypter-worker.js */
+    const workerCode = transform(getWorkerString(function () {
+        /**
+         * @file stream.js
+         */
+
+        /**
+         * A lightweight readable stream implemention that handles event dispatching.
+         *
+         * @class Stream
+         */
+
+        var Stream = /*#__PURE__*/function () {
+            function Stream() {
+                this.listeners = {};
+            }
+            /**
+             * Add a listener for a specified event type.
+             *
+             * @param {string} type the event name
+             * @param {Function} listener the callback to be invoked when an event of
+             * the specified type occurs
+             */
+
+            var _proto = Stream.prototype;
+            _proto.on = function on(type, listener) {
+                if (!this.listeners[type]) {
+                    this.listeners[type] = [];
+                }
+                this.listeners[type].push(listener);
+            }
+            /**
+             * Remove a listener for a specified event type.
+             *
+             * @param {string} type the event name
+             * @param {Function} listener  a function previously registered for this
+             * type of event through `on`
+             * @return {boolean} if we could turn it off or not
+             */;
+
+            _proto.off = function off(type, listener) {
+                if (!this.listeners[type]) {
+                    return false;
+                }
+                var index = this.listeners[type].indexOf(listener); // TODO: which is better?
+                // In Video.js we slice listener functions
+                // on trigger so that it does not mess up the order
+                // while we loop through.
+                //
+                // Here we slice on off so that the loop in trigger
+                // can continue using it's old reference to loop without
+                // messing up the order.
+
+                this.listeners[type] = this.listeners[type].slice(0);
+                this.listeners[type].splice(index, 1);
+                return index > -1;
+            }
+            /**
+             * Trigger an event of the specified type on this stream. Any additional
+             * arguments to this function are passed as parameters to event listeners.
+             *
+             * @param {string} type the event name
+             */;
+
+            _proto.trigger = function trigger(type) {
+                var callbacks = this.listeners[type];
+                if (!callbacks) {
+                    return;
+                } // Slicing the arguments on every invocation of this method
+                // can add a significant amount of overhead. Avoid the
+                // intermediate object creation for the common case of a
+                // single callback argument
+
+                if (arguments.length === 2) {
+                    var length = callbacks.length;
+                    for (var i = 0; i < length; ++i) {
+                        callbacks[i].call(this, arguments[1]);
+                    }
+                } else {
+                    var args = Array.prototype.slice.call(arguments, 1);
+                    var _length = callbacks.length;
+                    for (var _i = 0; _i < _length; ++_i) {
+                        callbacks[_i].apply(this, args);
+                    }
+                }
+            }
+            /**
+             * Destroys the stream and cleans up.
+             */;
+
+            _proto.dispose = function dispose() {
+                this.listeners = {};
+            }
+            /**
+             * Forwards all `data` events on this stream to the destination stream. The
+             * destination stream should provide a method `push` to receive the data
+             * events as they arrive.
+             *
+             * @param {Stream} destination the stream that will receive all `data` events
+             * @see http://nodejs.org/api/stream.html#stream_readable_pipe_destination_options
+             */;
+
+            _proto.pipe = function pipe(destination) {
+                this.on('data', function (data) {
+                    destination.push(data);
+                });
+            };
+            return Stream;
+        }();
+        /*! @name pkcs7 @version 1.0.4 @license Apache-2.0 */
+
+        /**
+         * Returns the subarray of a Uint8Array without PKCS#7 padding.
+         *
+         * @param padded {Uint8Array} unencrypted bytes that have been padded
+         * @return {Uint8Array} the unpadded bytes
+         * @see http://tools.ietf.org/html/rfc5652
+         */
+
+        function unpad(padded) {
+            return padded.subarray(0, padded.byteLength - padded[padded.byteLength - 1]);
+        }
+        /*! @name aes-decrypter @version 4.0.1 @license Apache-2.0 */
+
+        /**
+         * @file aes.js
+         *
+         * This file contains an adaptation of the AES decryption algorithm
+         * from the Standford Javascript Cryptography Library. That work is
+         * covered by the following copyright and permissions notice:
+         *
+         * Copyright 2009-2010 Emily Stark, Mike Hamburg, Dan Boneh.
+         * All rights reserved.
+         *
+         * Redistribution and use in source and binary forms, with or without
+         * modification, are permitted provided that the following conditions are
+         * met:
+         *
+         * 1. Redistributions of source code must retain the above copyright
+         *    notice, this list of conditions and the following disclaimer.
+         *
+         * 2. Redistributions in binary form must reproduce the above
+         *    copyright notice, this list of conditions and the following
+         *    disclaimer in the documentation and/or other materials provided
+         *    with the distribution.
+         *
+         * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR
+         * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+         * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+         * DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> OR CONTRIBUTORS BE
+         * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+         * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+         * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+         * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+         * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
+         * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
+         * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+         *
+         * The views and conclusions contained in the software and documentation
+         * are those of the authors and should not be interpreted as representing
+         * official policies, either expressed or implied, of the authors.
+         */
+
+        /**
+         * Expand the S-box tables.
+         *
+         * @private
+         */
+
+        const precompute = function () {
+            const tables = [[[], [], [], [], []], [[], [], [], [], []]];
+            const encTable = tables[0];
+            const decTable = tables[1];
+            const sbox = encTable[4];
+            const sboxInv = decTable[4];
+            let i;
+            let x;
+            let xInv;
+            const d = [];
+            const th = [];
+            let x2;
+            let x4;
+            let x8;
+            let s;
+            let tEnc;
+            let tDec; // Compute double and third tables
+
+            for (i = 0; i < 256; i++) {
+                th[(d[i] = i << 1 ^ (i >> 7) * 283) ^ i] = i;
+            }
+            for (x = xInv = 0; !sbox[x]; x ^= x2 || 1, xInv = th[xInv] || 1) {
+                // Compute sbox
+                s = xInv ^ xInv << 1 ^ xInv << 2 ^ xInv << 3 ^ xInv << 4;
+                s = s >> 8 ^ s & 255 ^ 99;
+                sbox[x] = s;
+                sboxInv[s] = x; // Compute MixColumns
+
+                x8 = d[x4 = d[x2 = d[x]]];
+                tDec = x8 * 0x1010101 ^ x4 * 0x10001 ^ x2 * 0x101 ^ x * 0x1010100;
+                tEnc = d[s] * 0x101 ^ s * 0x1010100;
+                for (i = 0; i < 4; i++) {
+                    encTable[i][x] = tEnc = tEnc << 24 ^ tEnc >>> 8;
+                    decTable[i][s] = tDec = tDec << 24 ^ tDec >>> 8;
+                }
+            } // Compactify. Considerable speedup on Firefox.
+
+            for (i = 0; i < 5; i++) {
+                encTable[i] = encTable[i].slice(0);
+                decTable[i] = decTable[i].slice(0);
+            }
+            return tables;
+        };
+        let aesTables = null;
+        /**
+         * Schedule out an AES key for both encryption and decryption. This
+         * is a low-level class. Use a cipher mode to do bulk encryption.
+         *
+         * @class AES
+         * @param key {Array} The key as an array of 4, 6 or 8 words.
+         */
+
+        class AES {
+            constructor(key) {
+                /**
+                 * The expanded S-box and inverse S-box tables. These will be computed
+                 * on the client so that we don't have to send them down the wire.
+                 *
+                 * There are two tables, _tables[0] is for encryption and
+                 * _tables[1] is for decryption.
+                 *
+                 * The first 4 sub-tables are the expanded S-box with MixColumns. The
+                 * last (_tables[01][4]) is the S-box itself.
+                 *
+                 * @private
+                 */
+                // if we have yet to precompute the S-box tables
+                // do so now
+                if (!aesTables) {
+                    aesTables = precompute();
+                } // then make a copy of that object for use
+
+                this._tables = [[aesTables[0][0].slice(), aesTables[0][1].slice(), aesTables[0][2].slice(), aesTables[0][3].slice(), aesTables[0][4].slice()], [aesTables[1][0].slice(), aesTables[1][1].slice(), aesTables[1][2].slice(), aesTables[1][3].slice(), aesTables[1][4].slice()]];
+                let i;
+                let j;
+                let tmp;
+                const sbox = this._tables[0][4];
+                const decTable = this._tables[1];
+                const keyLen = key.length;
+                let rcon = 1;
+                if (keyLen !== 4 && keyLen !== 6 && keyLen !== 8) {
+                    throw new Error('Invalid aes key size');
+                }
+                const encKey = key.slice(0);
+                const decKey = [];
+                this._key = [encKey, decKey]; // schedule encryption keys
+
+                for (i = keyLen; i < 4 * keyLen + 28; i++) {
+                    tmp = encKey[i - 1]; // apply sbox
+
+                    if (i % keyLen === 0 || keyLen === 8 && i % keyLen === 4) {
+                        tmp = sbox[tmp >>> 24] << 24 ^ sbox[tmp >> 16 & 255] << 16 ^ sbox[tmp >> 8 & 255] << 8 ^ sbox[tmp & 255]; // shift rows and add rcon
+
+                        if (i % keyLen === 0) {
+                            tmp = tmp << 8 ^ tmp >>> 24 ^ rcon << 24;
+                            rcon = rcon << 1 ^ (rcon >> 7) * 283;
+                        }
+                    }
+                    encKey[i] = encKey[i - keyLen] ^ tmp;
+                } // schedule decryption keys
+
+                for (j = 0; i; j++, i--) {
+                    tmp = encKey[j & 3 ? i : i - 4];
+                    if (i <= 4 || j < 4) {
+                        decKey[j] = tmp;
+                    } else {
+                        decKey[j] = decTable[0][sbox[tmp >>> 24]] ^ decTable[1][sbox[tmp >> 16 & 255]] ^ decTable[2][sbox[tmp >> 8 & 255]] ^ decTable[3][sbox[tmp & 255]];
+                    }
+                }
+            }
+            /**
+             * Decrypt 16 bytes, specified as four 32-bit words.
+             *
+             * @param {number} encrypted0 the first word to decrypt
+             * @param {number} encrypted1 the second word to decrypt
+             * @param {number} encrypted2 the third word to decrypt
+             * @param {number} encrypted3 the fourth word to decrypt
+             * @param {Int32Array} out the array to write the decrypted words
+             * into
+             * @param {number} offset the offset into the output array to start
+             * writing results
+             * @return {Array} The plaintext.
+             */
+
+            decrypt(encrypted0, encrypted1, encrypted2, encrypted3, out, offset) {
+                const key = this._key[1]; // state variables a,b,c,d are loaded with pre-whitened data
+
+                let a = encrypted0 ^ key[0];
+                let b = encrypted3 ^ key[1];
+                let c = encrypted2 ^ key[2];
+                let d = encrypted1 ^ key[3];
+                let a2;
+                let b2;
+                let c2; // key.length === 2 ?
+
+                const nInnerRounds = key.length / 4 - 2;
+                let i;
+                let kIndex = 4;
+                const table = this._tables[1]; // load up the tables
+
+                const table0 = table[0];
+                const table1 = table[1];
+                const table2 = table[2];
+                const table3 = table[3];
+                const sbox = table[4]; // Inner rounds. Cribbed from OpenSSL.
+
+                for (i = 0; i < nInnerRounds; i++) {
+                    a2 = table0[a >>> 24] ^ table1[b >> 16 & 255] ^ table2[c >> 8 & 255] ^ table3[d & 255] ^ key[kIndex];
+                    b2 = table0[b >>> 24] ^ table1[c >> 16 & 255] ^ table2[d >> 8 & 255] ^ table3[a & 255] ^ key[kIndex + 1];
+                    c2 = table0[c >>> 24] ^ table1[d >> 16 & 255] ^ table2[a >> 8 & 255] ^ table3[b & 255] ^ key[kIndex + 2];
+                    d = table0[d >>> 24] ^ table1[a >> 16 & 255] ^ table2[b >> 8 & 255] ^ table3[c & 255] ^ key[kIndex + 3];
+                    kIndex += 4;
+                    a = a2;
+                    b = b2;
+                    c = c2;
+                } // Last round.
+
+                for (i = 0; i < 4; i++) {
+                    out[(3 & -i) + offset] = sbox[a >>> 24] << 24 ^ sbox[b >> 16 & 255] << 16 ^ sbox[c >> 8 & 255] << 8 ^ sbox[d & 255] ^ key[kIndex++];
+                    a2 = a;
+                    a = b;
+                    b = c;
+                    c = d;
+                    d = a2;
+                }
+            }
+        }
+        /**
+         * @file async-stream.js
+         */
+
+        /**
+         * A wrapper around the Stream class to use setTimeout
+         * and run stream "jobs" Asynchronously
+         *
+         * @class AsyncStream
+         * @extends Stream
+         */
+
+        class AsyncStream extends Stream {
+            constructor() {
+                super(Stream);
+                this.jobs = [];
+                this.delay = 1;
+                this.timeout_ = null;
+            }
+            /**
+             * process an async job
+             *
+             * @private
+             */
+
+            processJob_() {
+                this.jobs.shift()();
+                if (this.jobs.length) {
+                    this.timeout_ = setTimeout(this.processJob_.bind(this), this.delay);
+                } else {
+                    this.timeout_ = null;
+                }
+            }
+            /**
+             * push a job into the stream
+             *
+             * @param {Function} job the job to push into the stream
+             */
+
+            push(job) {
+                this.jobs.push(job);
+                if (!this.timeout_) {
+                    this.timeout_ = setTimeout(this.processJob_.bind(this), this.delay);
+                }
+            }
+        }
+        /**
+         * @file decrypter.js
+         *
+         * An asynchronous implementation of AES-128 CBC decryption with
+         * PKCS#7 padding.
+         */
+
+        /**
+         * Convert network-order (big-endian) bytes into their little-endian
+         * representation.
+         */
+
+        const ntoh = function (word) {
+            return word << 24 | (word & 0xff00) << 8 | (word & 0xff0000) >> 8 | word >>> 24;
+        };
+        /**
+         * Decrypt bytes using AES-128 with CBC and PKCS#7 padding.
+         *
+         * @param {Uint8Array} encrypted the encrypted bytes
+         * @param {Uint32Array} key the bytes of the decryption key
+         * @param {Uint32Array} initVector the initialization vector (IV) to
+         * use for the first round of CBC.
+         * @return {Uint8Array} the decrypted bytes
+         *
+         * @see http://en.wikipedia.org/wiki/Advanced_Encryption_Standard
+         * @see http://en.wikipedia.org/wiki/Block_cipher_mode_of_operation#Cipher_Block_Chaining_.28CBC.29
+         * @see https://tools.ietf.org/html/rfc2315
+         */
+
+        const decrypt = function (encrypted, key, initVector) {
+            // word-level access to the encrypted bytes
+            const encrypted32 = new Int32Array(encrypted.buffer, encrypted.byteOffset, encrypted.byteLength >> 2);
+            const decipher = new AES(Array.prototype.slice.call(key)); // byte and word-level access for the decrypted output
+
+            const decrypted = new Uint8Array(encrypted.byteLength);
+            const decrypted32 = new Int32Array(decrypted.buffer); // temporary variables for working with the IV, encrypted, and
+            // decrypted data
+
+            let init0;
+            let init1;
+            let init2;
+            let init3;
+            let encrypted0;
+            let encrypted1;
+            let encrypted2;
+            let encrypted3; // iteration variable
+
+            let wordIx; // pull out the words of the IV to ensure we don't modify the
+            // passed-in reference and easier access
+
+            init0 = initVector[0];
+            init1 = initVector[1];
+            init2 = initVector[2];
+            init3 = initVector[3]; // decrypt four word sequences, applying cipher-block chaining (CBC)
+            // to each decrypted block
+
+            for (wordIx = 0; wordIx < encrypted32.length; wordIx += 4) {
+                // convert big-endian (network order) words into little-endian
+                // (javascript order)
+                encrypted0 = ntoh(encrypted32[wordIx]);
+                encrypted1 = ntoh(encrypted32[wordIx + 1]);
+                encrypted2 = ntoh(encrypted32[wordIx + 2]);
+                encrypted3 = ntoh(encrypted32[wordIx + 3]); // decrypt the block
+
+                decipher.decrypt(encrypted0, encrypted1, encrypted2, encrypted3, decrypted32, wordIx); // XOR with the IV, and restore network byte-order to obtain the
+                // plaintext
+
+                decrypted32[wordIx] = ntoh(decrypted32[wordIx] ^ init0);
+                decrypted32[wordIx + 1] = ntoh(decrypted32[wordIx + 1] ^ init1);
+                decrypted32[wordIx + 2] = ntoh(decrypted32[wordIx + 2] ^ init2);
+                decrypted32[wordIx + 3] = ntoh(decrypted32[wordIx + 3] ^ init3); // setup the IV for the next round
+
+                init0 = encrypted0;
+                init1 = encrypted1;
+                init2 = encrypted2;
+                init3 = encrypted3;
+            }
+            return decrypted;
+        };
+        /**
+         * The `Decrypter` class that manages decryption of AES
+         * data through `AsyncStream` objects and the `decrypt`
+         * function
+         *
+         * @param {Uint8Array} encrypted the encrypted bytes
+         * @param {Uint32Array} key the bytes of the decryption key
+         * @param {Uint32Array} initVector the initialization vector (IV) to
+         * @param {Function} done the function to run when done
+         * @class Decrypter
+         */
+
+        class Decrypter {
+            constructor(encrypted, key, initVector, done) {
+                const step = Decrypter.STEP;
+                const encrypted32 = new Int32Array(encrypted.buffer);
+                const decrypted = new Uint8Array(encrypted.byteLength);
+                let i = 0;
+                this.asyncStream_ = new AsyncStream(); // split up the encryption job and do the individual chunks asynchronously
+
+                this.asyncStream_.push(this.decryptChunk_(encrypted32.subarray(i, i + step), key, initVector, decrypted));
+                for (i = step; i < encrypted32.length; i += step) {
+                    initVector = new Uint32Array([ntoh(encrypted32[i - 4]), ntoh(encrypted32[i - 3]), ntoh(encrypted32[i - 2]), ntoh(encrypted32[i - 1])]);
+                    this.asyncStream_.push(this.decryptChunk_(encrypted32.subarray(i, i + step), key, initVector, decrypted));
+                } // invoke the done() callback when everything is finished
+
+                this.asyncStream_.push(function () {
+                    // remove pkcs#7 padding from the decrypted bytes
+                    done(null, unpad(decrypted));
+                });
+            }
+            /**
+             * a getter for step the maximum number of bytes to process at one time
+             *
+             * @return {number} the value of step 32000
+             */
+
+            static get STEP() {
+                // 4 * 8000;
+                return 32000;
+            }
+            /**
+             * @private
+             */
+
+            decryptChunk_(encrypted, key, initVector, decrypted) {
+                return function () {
+                    const bytes = decrypt(encrypted, key, initVector);
+                    decrypted.set(bytes, encrypted.byteOffset);
+                };
+            }
+        }
+        var commonjsGlobal = typeof globalThis !== 'undefined' ? globalThis : typeof window !== 'undefined' ? window : typeof global !== 'undefined' ? global : typeof self !== 'undefined' ? self : {};
+        var win;
+        if (typeof window !== "undefined") {
+            win = window;
+        } else if (typeof commonjsGlobal !== "undefined") {
+            win = commonjsGlobal;
+        } else if (typeof self !== "undefined") {
+            win = self;
+        } else {
+            win = {};
+        }
+        var window_1 = win;
+        var isArrayBufferView = function isArrayBufferView(obj) {
+            if (ArrayBuffer.isView === 'function') {
+                return ArrayBuffer.isView(obj);
+            }
+            return obj && obj.buffer instanceof ArrayBuffer;
+        };
+        var BigInt = window_1.BigInt || Number;
+        [BigInt('0x1'), BigInt('0x100'), BigInt('0x10000'), BigInt('0x1000000'), BigInt('0x100000000'), BigInt('0x10000000000'), BigInt('0x1000000000000'), BigInt('0x100000000000000'), BigInt('0x10000000000000000')];
+        (function () {
+            var a = new Uint16Array([0xFFCC]);
+            var b = new Uint8Array(a.buffer, a.byteOffset, a.byteLength);
+            if (b[0] === 0xFF) {
+                return 'big';
+            }
+            if (b[0] === 0xCC) {
+                return 'little';
+            }
+            return 'unknown';
+        })();
+        /**
+         * Creates an object for sending to a web worker modifying properties that are TypedArrays
+         * into a new object with seperated properties for the buffer, byteOffset, and byteLength.
+         *
+         * @param {Object} message
+         *        Object of properties and values to send to the web worker
+         * @return {Object}
+         *         Modified message with TypedArray values expanded
+         * @function createTransferableMessage
+         */
+
+        const createTransferableMessage = function (message) {
+            const transferable = {};
+            Object.keys(message).forEach(key => {
+                const value = message[key];
+                if (isArrayBufferView(value)) {
+                    transferable[key] = {
+                        bytes: value.buffer,
+                        byteOffset: value.byteOffset,
+                        byteLength: value.byteLength
+                    };
+                } else {
+                    transferable[key] = value;
+                }
+            });
+            return transferable;
+        };
+        /* global self */
+
+        /**
+         * Our web worker interface so that things can talk to aes-decrypter
+         * that will be running in a web worker. the scope is passed to this by
+         * webworkify.
+         */
+
+        self.onmessage = function (event) {
+            const data = event.data;
+            const encrypted = new Uint8Array(data.encrypted.bytes, data.encrypted.byteOffset, data.encrypted.byteLength);
+            const key = new Uint32Array(data.key.bytes, data.key.byteOffset, data.key.byteLength / 4);
+            const iv = new Uint32Array(data.iv.bytes, data.iv.byteOffset, data.iv.byteLength / 4);
+            /* eslint-disable no-new, handle-callback-err */
+
+            new Decrypter(encrypted, key, iv, function (err, bytes) {
+                self.postMessage(createTransferableMessage({
+                    source: data.source,
+                    decrypted: bytes
+                }), [bytes.buffer]);
+            });
+            /* eslint-enable */
+        };
+    }));
+
+    var Decrypter = factory(workerCode);
+    /* rollup-plugin-worker-factory end for worker!/Users/ddashkevich/projects/http-streaming/src/decrypter-worker.js */
+
+    /**
+     * Convert the properties of an HLS track into an audioTrackKind.
+     *
+     * @private
+     */
+
+    const audioTrackKind_ = properties => {
+        let kind = properties.default ? 'main' : 'alternative';
+        if (properties.characteristics && properties.characteristics.indexOf('public.accessibility.describes-video') >= 0) {
+            kind = 'main-desc';
+        }
+        return kind;
+    };
+    /**
+     * Pause provided segment loader and playlist loader if active
+     *
+     * @param {SegmentLoader} segmentLoader
+     *        SegmentLoader to pause
+     * @param {Object} mediaType
+     *        Active media type
+     * @function stopLoaders
+     */
+
+    const stopLoaders = (segmentLoader, mediaType) => {
+        segmentLoader.abort();
+        segmentLoader.pause();
+        if (mediaType && mediaType.activePlaylistLoader) {
+            mediaType.activePlaylistLoader.pause();
+            mediaType.activePlaylistLoader = null;
+        }
+    };
+    /**
+     * Start loading provided segment loader and playlist loader
+     *
+     * @param {PlaylistLoader} playlistLoader
+     *        PlaylistLoader to start loading
+     * @param {Object} mediaType
+     *        Active media type
+     * @function startLoaders
+     */
+
+    const startLoaders = (playlistLoader, mediaType) => {
+        // Segment loader will be started after `loadedmetadata` or `loadedplaylist` from the
+        // playlist loader
+        mediaType.activePlaylistLoader = playlistLoader;
+        playlistLoader.load();
+    };
+    /**
+     * Returns a function to be called when the media group changes. It performs a
+     * non-destructive (preserve the buffer) resync of the SegmentLoader. This is because a
+     * change of group is merely a rendition switch of the same content at another encoding,
+     * rather than a change of content, such as switching audio from English to Spanish.
+     *
+     * @param {string} type
+     *        MediaGroup type
+     * @param {Object} settings
+     *        Object containing required information for media groups
+     * @return {Function}
+     *         Handler for a non-destructive resync of SegmentLoader when the active media
+     *         group changes.
+     * @function onGroupChanged
+     */
+
+    const onGroupChanged = (type, settings) => () => {
+        const {
+            segmentLoaders: {
+                [type]: segmentLoader,
+                main: mainSegmentLoader
+            },
+            mediaTypes: {
+                [type]: mediaType
+            }
+        } = settings;
+        const activeTrack = mediaType.activeTrack();
+        const activeGroup = mediaType.getActiveGroup();
+        const previousActiveLoader = mediaType.activePlaylistLoader;
+        const lastGroup = mediaType.lastGroup_; // the group did not change do nothing
+
+        if (activeGroup && lastGroup && activeGroup.id === lastGroup.id) {
+            return;
+        }
+        mediaType.lastGroup_ = activeGroup;
+        mediaType.lastTrack_ = activeTrack;
+        stopLoaders(segmentLoader, mediaType);
+        if (!activeGroup || activeGroup.isMainPlaylist) {
+            // there is no group active or active group is a main playlist and won't change
+            return;
+        }
+        if (!activeGroup.playlistLoader) {
+            if (previousActiveLoader) {
+                // The previous group had a playlist loader but the new active group does not
+                // this means we are switching from demuxed to muxed audio. In this case we want to
+                // do a destructive reset of the main segment loader and not restart the audio
+                // loaders.
+                mainSegmentLoader.resetEverything();
+            }
+            return;
+        } // Non-destructive resync
+
+        segmentLoader.resyncLoader();
+        startLoaders(activeGroup.playlistLoader, mediaType);
+    };
+    const onGroupChanging = (type, settings) => () => {
+        const {
+            segmentLoaders: {
+                [type]: segmentLoader
+            },
+            mediaTypes: {
+                [type]: mediaType
+            }
+        } = settings;
+        mediaType.lastGroup_ = null;
+        segmentLoader.abort();
+        segmentLoader.pause();
+    };
+    /**
+     * Returns a function to be called when the media track changes. It performs a
+     * destructive reset of the SegmentLoader to ensure we start loading as close to
+     * currentTime as possible.
+     *
+     * @param {string} type
+     *        MediaGroup type
+     * @param {Object} settings
+     *        Object containing required information for media groups
+     * @return {Function}
+     *         Handler for a destructive reset of SegmentLoader when the active media
+     *         track changes.
+     * @function onTrackChanged
+     */
+
+    const onTrackChanged = (type, settings) => () => {
+        const {
+            mainPlaylistLoader,
+            segmentLoaders: {
+                [type]: segmentLoader,
+                main: mainSegmentLoader
+            },
+            mediaTypes: {
+                [type]: mediaType
+            }
+        } = settings;
+        const activeTrack = mediaType.activeTrack();
+        const activeGroup = mediaType.getActiveGroup();
+        const previousActiveLoader = mediaType.activePlaylistLoader;
+        const lastTrack = mediaType.lastTrack_; // track did not change, do nothing
+
+        if (lastTrack && activeTrack && lastTrack.id === activeTrack.id) {
+            return;
+        }
+        mediaType.lastGroup_ = activeGroup;
+        mediaType.lastTrack_ = activeTrack;
+        stopLoaders(segmentLoader, mediaType);
+        if (!activeGroup) {
+            // there is no group active so we do not want to restart loaders
+            return;
+        }
+        if (activeGroup.isMainPlaylist) {
+            // track did not change, do nothing
+            if (!activeTrack || !lastTrack || activeTrack.id === lastTrack.id) {
+                return;
+            }
+            const pc = settings.vhs.playlistController_;
+            const newPlaylist = pc.selectPlaylist(); // media will not change do nothing
+
+            if (pc.media() === newPlaylist) {
+                return;
+            }
+            mediaType.logger_(`track change. Switching main audio from ${lastTrack.id} to ${activeTrack.id}`);
+            mainPlaylistLoader.pause();
+            mainSegmentLoader.resetEverything();
+            pc.fastQualityChange_(newPlaylist);
+            return;
+        }
+        if (type === 'AUDIO') {
+            if (!activeGroup.playlistLoader) {
+                // when switching from demuxed audio/video to muxed audio/video (noted by no
+                // playlist loader for the audio group), we want to do a destructive reset of the
+                // main segment loader and not restart the audio loaders
+                mainSegmentLoader.setAudio(true); // don't have to worry about disabling the audio of the audio segment loader since
+                // it should be stopped
+
+                mainSegmentLoader.resetEverything();
+                return;
+            } // although the segment loader is an audio segment loader, call the setAudio
+            // function to ensure it is prepared to re-append the init segment (or handle other
+            // config changes)
+
+            segmentLoader.setAudio(true);
+            mainSegmentLoader.setAudio(false);
+        }
+        if (previousActiveLoader === activeGroup.playlistLoader) {
+            // Nothing has actually changed. This can happen because track change events can fire
+            // multiple times for a "single" change. One for enabling the new active track, and
+            // one for disabling the track that was active
+            startLoaders(activeGroup.playlistLoader, mediaType);
+            return;
+        }
+        if (segmentLoader.track) {
+            // For WebVTT, set the new text track in the segmentloader
+            segmentLoader.track(activeTrack);
+        } // destructive reset
+
+        segmentLoader.resetEverything();
+        startLoaders(activeGroup.playlistLoader, mediaType);
+    };
+    const onError = {
+        /**
+         * Returns a function to be called when a SegmentLoader or PlaylistLoader encounters
+         * an error.
+         *
+         * @param {string} type
+         *        MediaGroup type
+         * @param {Object} settings
+         *        Object containing required information for media groups
+         * @return {Function}
+         *         Error handler. Logs warning (or error if the playlist is excluded) to
+         *         console and switches back to default audio track.
+         * @function onError.AUDIO
+         */
+        AUDIO: (type, settings) => () => {
+            const {
+                segmentLoaders: {
+                    [type]: segmentLoader
+                },
+                mediaTypes: {
+                    [type]: mediaType
+                },
+                excludePlaylist
+            } = settings;
+            stopLoaders(segmentLoader, mediaType); // switch back to default audio track
+
+            const activeTrack = mediaType.activeTrack();
+            const activeGroup = mediaType.activeGroup();
+            const id = (activeGroup.filter(group => group.default)[0] || activeGroup[0]).id;
+            const defaultTrack = mediaType.tracks[id];
+            if (activeTrack === defaultTrack) {
+                // Default track encountered an error. All we can do now is exclude the current
+                // rendition and hope another will switch audio groups
+                excludePlaylist({
+                    error: {
+                        message: 'Problem encountered loading the default audio track.'
+                    }
+                });
+                return;
+            }
+            videojs.log.warn('Problem encountered loading the alternate audio track.' + 'Switching back to default.');
+            for (const trackId in mediaType.tracks) {
+                mediaType.tracks[trackId].enabled = mediaType.tracks[trackId] === defaultTrack;
+            }
+            mediaType.onTrackChanged();
+        },
+        /**
+         * Returns a function to be called when a SegmentLoader or PlaylistLoader encounters
+         * an error.
+         *
+         * @param {string} type
+         *        MediaGroup type
+         * @param {Object} settings
+         *        Object containing required information for media groups
+         * @return {Function}
+         *         Error handler. Logs warning to console and disables the active subtitle track
+         * @function onError.SUBTITLES
+         */
+        SUBTITLES: (type, settings) => () => {
+            const {
+                segmentLoaders: {
+                    [type]: segmentLoader
+                },
+                mediaTypes: {
+                    [type]: mediaType
+                }
+            } = settings;
+            videojs.log.warn('Problem encountered loading the subtitle track.' + 'Disabling subtitle track.');
+            stopLoaders(segmentLoader, mediaType);
+            const track = mediaType.activeTrack();
+            if (track) {
+                track.mode = 'disabled';
+            }
+            mediaType.onTrackChanged();
+        }
+    };
+    const setupListeners = {
+        /**
+         * Setup event listeners for audio playlist loader
+         *
+         * @param {string} type
+         *        MediaGroup type
+         * @param {PlaylistLoader|null} playlistLoader
+         *        PlaylistLoader to register listeners on
+         * @param {Object} settings
+         *        Object containing required information for media groups
+         * @function setupListeners.AUDIO
+         */
+        AUDIO: (type, playlistLoader, settings) => {
+            if (!playlistLoader) {
+                // no playlist loader means audio will be muxed with the video
+                return;
+            }
+            const {
+                tech,
+                requestOptions,
+                segmentLoaders: {
+                    [type]: segmentLoader
+                }
+            } = settings;
+            playlistLoader.on('loadedmetadata', () => {
+                const media = playlistLoader.media();
+                segmentLoader.playlist(media, requestOptions); // if the video is already playing, or if this isn't a live video and preload
+                // permits, start downloading segments
+
+                if (!tech.paused() || media.endList && tech.preload() !== 'none') {
+                    segmentLoader.load();
+                }
+            });
+            playlistLoader.on('loadedplaylist', () => {
+                segmentLoader.playlist(playlistLoader.media(), requestOptions); // If the player isn't paused, ensure that the segment loader is running
+
+                if (!tech.paused()) {
+                    segmentLoader.load();
+                }
+            });
+            playlistLoader.on('error', onError[type](type, settings));
+        },
+        /**
+         * Setup event listeners for subtitle playlist loader
+         *
+         * @param {string} type
+         *        MediaGroup type
+         * @param {PlaylistLoader|null} playlistLoader
+         *        PlaylistLoader to register listeners on
+         * @param {Object} settings
+         *        Object containing required information for media groups
+         * @function setupListeners.SUBTITLES
+         */
+        SUBTITLES: (type, playlistLoader, settings) => {
+            const {
+                tech,
+                requestOptions,
+                segmentLoaders: {
+                    [type]: segmentLoader
+                },
+                mediaTypes: {
+                    [type]: mediaType
+                }
+            } = settings;
+            playlistLoader.on('loadedmetadata', () => {
+                const media = playlistLoader.media();
+                segmentLoader.playlist(media, requestOptions);
+                segmentLoader.track(mediaType.activeTrack()); // if the video is already playing, or if this isn't a live video and preload
+                // permits, start downloading segments
+
+                if (!tech.paused() || media.endList && tech.preload() !== 'none') {
+                    segmentLoader.load();
+                }
+            });
+            playlistLoader.on('loadedplaylist', () => {
+                segmentLoader.playlist(playlistLoader.media(), requestOptions); // If the player isn't paused, ensure that the segment loader is running
+
+                if (!tech.paused()) {
+                    segmentLoader.load();
+                }
+            });
+            playlistLoader.on('error', onError[type](type, settings));
+        }
+    };
+    const initialize = {
+        /**
+         * Setup PlaylistLoaders and AudioTracks for the audio groups
+         *
+         * @param {string} type
+         *        MediaGroup type
+         * @param {Object} settings
+         *        Object containing required information for media groups
+         * @function initialize.AUDIO
+         */
+        'AUDIO': (type, settings) => {
+            const {
+                vhs,
+                sourceType,
+                segmentLoaders: {
+                    [type]: segmentLoader
+                },
+                requestOptions,
+                main: {
+                    mediaGroups
+                },
+                mediaTypes: {
+                    [type]: {
+                        groups,
+                        tracks,
+                        logger_
+                    }
+                },
+                mainPlaylistLoader
+            } = settings;
+            const audioOnlyMain = isAudioOnly(mainPlaylistLoader.main); // force a default if we have none
+
+            if (!mediaGroups[type] || Object.keys(mediaGroups[type]).length === 0) {
+                mediaGroups[type] = {
+                    main: {
+                        default: {
+                            default: true
+                        }
+                    }
+                };
+                if (audioOnlyMain) {
+                    mediaGroups[type].main.default.playlists = mainPlaylistLoader.main.playlists;
+                }
+            }
+            for (const groupId in mediaGroups[type]) {
+                if (!groups[groupId]) {
+                    groups[groupId] = [];
+                }
+                for (const variantLabel in mediaGroups[type][groupId]) {
+                    let properties = mediaGroups[type][groupId][variantLabel];
+                    let playlistLoader;
+                    if (audioOnlyMain) {
+                        logger_(`AUDIO group '${groupId}' label '${variantLabel}' is a main playlist`);
+                        properties.isMainPlaylist = true;
+                        playlistLoader = null; // if vhs-json was provided as the source, and the media playlist was resolved,
+                        // use the resolved media playlist object
+                    } else if (sourceType === 'vhs-json' && properties.playlists) {
+                        playlistLoader = new PlaylistLoader(properties.playlists[0], vhs, requestOptions);
+                    } else if (properties.resolvedUri) {
+                        playlistLoader = new PlaylistLoader(properties.resolvedUri, vhs, requestOptions); // TODO: dash isn't the only type with properties.playlists
+                        // should we even have properties.playlists in this check.
+                    } else if (properties.playlists && sourceType === 'dash') {
+                        playlistLoader = new DashPlaylistLoader(properties.playlists[0], vhs, requestOptions, mainPlaylistLoader);
+                    } else {
+                        // no resolvedUri means the audio is muxed with the video when using this
+                        // audio track
+                        playlistLoader = null;
+                    }
+                    properties = merge({
+                        id: variantLabel,
+                        playlistLoader
+                    }, properties);
+                    setupListeners[type](type, properties.playlistLoader, settings);
+                    groups[groupId].push(properties);
+                    if (typeof tracks[variantLabel] === 'undefined') {
+                        const track = new videojs.AudioTrack({
+                            id: variantLabel,
+                            kind: audioTrackKind_(properties),
+                            enabled: false,
+                            language: properties.language,
+                            default: properties.default,
+                            label: variantLabel
+                        });
+                        tracks[variantLabel] = track;
+                    }
+                }
+            } // setup single error event handler for the segment loader
+
+            segmentLoader.on('error', onError[type](type, settings));
+        },
+        /**
+         * Setup PlaylistLoaders and TextTracks for the subtitle groups
+         *
+         * @param {string} type
+         *        MediaGroup type
+         * @param {Object} settings
+         *        Object containing required information for media groups
+         * @function initialize.SUBTITLES
+         */
+        'SUBTITLES': (type, settings) => {
+            const {
+                tech,
+                vhs,
+                sourceType,
+                segmentLoaders: {
+                    [type]: segmentLoader
+                },
+                requestOptions,
+                main: {
+                    mediaGroups
+                },
+                mediaTypes: {
+                    [type]: {
+                        groups,
+                        tracks
+                    }
+                },
+                mainPlaylistLoader
+            } = settings;
+            for (const groupId in mediaGroups[type]) {
+                if (!groups[groupId]) {
+                    groups[groupId] = [];
+                }
+                for (const variantLabel in mediaGroups[type][groupId]) {
+                    if (mediaGroups[type][groupId][variantLabel].forced) {
+                        // Subtitle playlists with the forced attribute are not selectable in Safari.
+                        // According to Apple's HLS Authoring Specification:
+                        //   If content has forced subtitles and regular subtitles in a given language,
+                        //   the regular subtitles track in that language MUST contain both the forced
+                        //   subtitles and the regular subtitles for that language.
+                        // Because of this requirement and that Safari does not add forced subtitles,
+                        // forced subtitles are skipped here to maintain consistent experience across
+                        // all platforms
+                        continue;
+                    }
+                    let properties = mediaGroups[type][groupId][variantLabel];
+                    let playlistLoader;
+                    if (sourceType === 'hls') {
+                        playlistLoader = new PlaylistLoader(properties.resolvedUri, vhs, requestOptions);
+                    } else if (sourceType === 'dash') {
+                        const playlists = properties.playlists.filter(p => p.excludeUntil !== Infinity);
+                        if (!playlists.length) {
+                            return;
+                        }
+                        playlistLoader = new DashPlaylistLoader(properties.playlists[0], vhs, requestOptions, mainPlaylistLoader);
+                    } else if (sourceType === 'vhs-json') {
+                        playlistLoader = new PlaylistLoader(
+                            // if the vhs-json object included the media playlist, use the media playlist
+                            // as provided, otherwise use the resolved URI to load the playlist
+                            properties.playlists ? properties.playlists[0] : properties.resolvedUri, vhs, requestOptions);
+                    }
+                    properties = merge({
+                        id: variantLabel,
+                        playlistLoader
+                    }, properties);
+                    setupListeners[type](type, properties.playlistLoader, settings);
+                    groups[groupId].push(properties);
+                    if (typeof tracks[variantLabel] === 'undefined') {
+                        const track = tech.addRemoteTextTrack({
+                            id: variantLabel,
+                            kind: 'subtitles',
+                            default: properties.default && properties.autoselect,
+                            language: properties.language,
+                            label: variantLabel
+                        }, false).track;
+                        tracks[variantLabel] = track;
+                    }
+                }
+            } // setup single error event handler for the segment loader
+
+            segmentLoader.on('error', onError[type](type, settings));
+        },
+        /**
+         * Setup TextTracks for the closed-caption groups
+         *
+         * @param {String} type
+         *        MediaGroup type
+         * @param {Object} settings
+         *        Object containing required information for media groups
+         * @function initialize['CLOSED-CAPTIONS']
+         */
+        'CLOSED-CAPTIONS': (type, settings) => {
+            const {
+                tech,
+                main: {
+                    mediaGroups
+                },
+                mediaTypes: {
+                    [type]: {
+                        groups,
+                        tracks
+                    }
+                }
+            } = settings;
+            for (const groupId in mediaGroups[type]) {
+                if (!groups[groupId]) {
+                    groups[groupId] = [];
+                }
+                for (const variantLabel in mediaGroups[type][groupId]) {
+                    const properties = mediaGroups[type][groupId][variantLabel]; // Look for either 608 (CCn) or 708 (SERVICEn) caption services
+
+                    if (!/^(?:CC|SERVICE)/.test(properties.instreamId)) {
+                        continue;
+                    }
+                    const captionServices = tech.options_.vhs && tech.options_.vhs.captionServices || {};
+                    let newProps = {
+                        label: variantLabel,
+                        language: properties.language,
+                        instreamId: properties.instreamId,
+                        default: properties.default && properties.autoselect
+                    };
+                    if (captionServices[newProps.instreamId]) {
+                        newProps = merge(newProps, captionServices[newProps.instreamId]);
+                    }
+                    if (newProps.default === undefined) {
+                        delete newProps.default;
+                    } // No PlaylistLoader is required for Closed-Captions because the captions are
+                    // embedded within the video stream
+
+                    groups[groupId].push(merge({
+                        id: variantLabel
+                    }, properties));
+                    if (typeof tracks[variantLabel] === 'undefined') {
+                        const track = tech.addRemoteTextTrack({
+                            id: newProps.instreamId,
+                            kind: 'captions',
+                            default: newProps.default,
+                            language: newProps.language,
+                            label: newProps.label
+                        }, false).track;
+                        tracks[variantLabel] = track;
+                    }
+                }
+            }
+        }
+    };
+    const groupMatch = (list, media) => {
+        for (let i = 0; i < list.length; i++) {
+            if (playlistMatch(media, list[i])) {
+                return true;
+            }
+            if (list[i].playlists && groupMatch(list[i].playlists, media)) {
+                return true;
+            }
+        }
+        return false;
+    };
+    /**
+     * Returns a function used to get the active group of the provided type
+     *
+     * @param {string} type
+     *        MediaGroup type
+     * @param {Object} settings
+     *        Object containing required information for media groups
+     * @return {Function}
+     *         Function that returns the active media group for the provided type. Takes an
+     *         optional parameter {TextTrack} track. If no track is provided, a list of all
+     *         variants in the group, otherwise the variant corresponding to the provided
+     *         track is returned.
+     * @function activeGroup
+     */
+
+    const activeGroup = (type, settings) => track => {
+        const {
+            mainPlaylistLoader,
+            mediaTypes: {
+                [type]: {
+                    groups
+                }
+            }
+        } = settings;
+        const media = mainPlaylistLoader.media();
+        if (!media) {
+            return null;
+        }
+        let variants = null; // set to variants to main media active group
+
+        if (media.attributes[type]) {
+            variants = groups[media.attributes[type]];
+        }
+        const groupKeys = Object.keys(groups);
+        if (!variants) {
+            // find the mainPlaylistLoader media
+            // that is in a media group if we are dealing
+            // with audio only
+            if (type === 'AUDIO' && groupKeys.length > 1 && isAudioOnly(settings.main)) {
+                for (let i = 0; i < groupKeys.length; i++) {
+                    const groupPropertyList = groups[groupKeys[i]];
+                    if (groupMatch(groupPropertyList, media)) {
+                        variants = groupPropertyList;
+                        break;
+                    }
+                } // use the main group if it exists
+            } else if (groups.main) {
+                variants = groups.main; // only one group, use that one
+            } else if (groupKeys.length === 1) {
+                variants = groups[groupKeys[0]];
+            }
+        }
+        if (typeof track === 'undefined') {
+            return variants;
+        }
+        if (track === null || !variants) {
+            // An active track was specified so a corresponding group is expected. track === null
+            // means no track is currently active so there is no corresponding group
+            return null;
+        }
+        return variants.filter(props => props.id === track.id)[0] || null;
+    };
+    const activeTrack = {
+        /**
+         * Returns a function used to get the active track of type provided
+         *
+         * @param {string} type
+         *        MediaGroup type
+         * @param {Object} settings
+         *        Object containing required information for media groups
+         * @return {Function}
+         *         Function that returns the active media track for the provided type. Returns
+         *         null if no track is active
+         * @function activeTrack.AUDIO
+         */
+        AUDIO: (type, settings) => () => {
+            const {
+                mediaTypes: {
+                    [type]: {
+                        tracks
+                    }
+                }
+            } = settings;
+            for (const id in tracks) {
+                if (tracks[id].enabled) {
+                    return tracks[id];
+                }
+            }
+            return null;
+        },
+        /**
+         * Returns a function used to get the active track of type provided
+         *
+         * @param {string} type
+         *        MediaGroup type
+         * @param {Object} settings
+         *        Object containing required information for media groups
+         * @return {Function}
+         *         Function that returns the active media track for the provided type. Returns
+         *         null if no track is active
+         * @function activeTrack.SUBTITLES
+         */
+        SUBTITLES: (type, settings) => () => {
+            const {
+                mediaTypes: {
+                    [type]: {
+                        tracks
+                    }
+                }
+            } = settings;
+            for (const id in tracks) {
+                if (tracks[id].mode === 'showing' || tracks[id].mode === 'hidden') {
+                    return tracks[id];
+                }
+            }
+            return null;
+        }
+    };
+    const getActiveGroup = (type, {
+        mediaTypes
+    }) => () => {
+        const activeTrack_ = mediaTypes[type].activeTrack();
+        if (!activeTrack_) {
+            return null;
+        }
+        return mediaTypes[type].activeGroup(activeTrack_);
+    };
+    /**
+     * Setup PlaylistLoaders and Tracks for media groups (Audio, Subtitles,
+     * Closed-Captions) specified in the main manifest.
+     *
+     * @param {Object} settings
+     *        Object containing required information for setting up the media groups
+     * @param {Tech} settings.tech
+     *        The tech of the player
+     * @param {Object} settings.requestOptions
+     *        XHR request options used by the segment loaders
+     * @param {PlaylistLoader} settings.mainPlaylistLoader
+     *        PlaylistLoader for the main source
+     * @param {VhsHandler} settings.vhs
+     *        VHS SourceHandler
+     * @param {Object} settings.main
+     *        The parsed main manifest
+     * @param {Object} settings.mediaTypes
+     *        Object to store the loaders, tracks, and utility methods for each media type
+     * @param {Function} settings.excludePlaylist
+     *        Excludes the current rendition and forces a rendition switch.
+     * @function setupMediaGroups
+     */
+
+    const setupMediaGroups = settings => {
+        ['AUDIO', 'SUBTITLES', 'CLOSED-CAPTIONS'].forEach(type => {
+            initialize[type](type, settings);
+        });
+        const {
+            mediaTypes,
+            mainPlaylistLoader,
+            tech,
+            vhs,
+            segmentLoaders: {
+                ['AUDIO']: audioSegmentLoader,
+                main: mainSegmentLoader
+            }
+        } = settings; // setup active group and track getters and change event handlers
+
+        ['AUDIO', 'SUBTITLES'].forEach(type => {
+            mediaTypes[type].activeGroup = activeGroup(type, settings);
+            mediaTypes[type].activeTrack = activeTrack[type](type, settings);
+            mediaTypes[type].onGroupChanged = onGroupChanged(type, settings);
+            mediaTypes[type].onGroupChanging = onGroupChanging(type, settings);
+            mediaTypes[type].onTrackChanged = onTrackChanged(type, settings);
+            mediaTypes[type].getActiveGroup = getActiveGroup(type, settings);
+        }); // DO NOT enable the default subtitle or caption track.
+        // DO enable the default audio track
+
+        const audioGroup = mediaTypes.AUDIO.activeGroup();
+        if (audioGroup) {
+            const groupId = (audioGroup.filter(group => group.default)[0] || audioGroup[0]).id;
+            mediaTypes.AUDIO.tracks[groupId].enabled = true;
+            mediaTypes.AUDIO.onGroupChanged();
+            mediaTypes.AUDIO.onTrackChanged();
+            const activeAudioGroup = mediaTypes.AUDIO.getActiveGroup(); // a similar check for handling setAudio on each loader is run again each time the
+            // track is changed, but needs to be handled here since the track may not be considered
+            // changed on the first call to onTrackChanged
+
+            if (!activeAudioGroup.playlistLoader) {
+                // either audio is muxed with video or the stream is audio only
+                mainSegmentLoader.setAudio(true);
+            } else {
+                // audio is demuxed
+                mainSegmentLoader.setAudio(false);
+                audioSegmentLoader.setAudio(true);
+            }
+        }
+        mainPlaylistLoader.on('mediachange', () => {
+            ['AUDIO', 'SUBTITLES'].forEach(type => mediaTypes[type].onGroupChanged());
+        });
+        mainPlaylistLoader.on('mediachanging', () => {
+            ['AUDIO', 'SUBTITLES'].forEach(type => mediaTypes[type].onGroupChanging());
+        }); // custom audio track change event handler for usage event
+
+        const onAudioTrackChanged = () => {
+            mediaTypes.AUDIO.onTrackChanged();
+            tech.trigger({
+                type: 'usage',
+                name: 'vhs-audio-change'
+            });
+        };
+        tech.audioTracks().addEventListener('change', onAudioTrackChanged);
+        tech.remoteTextTracks().addEventListener('change', mediaTypes.SUBTITLES.onTrackChanged);
+        vhs.on('dispose', () => {
+            tech.audioTracks().removeEventListener('change', onAudioTrackChanged);
+            tech.remoteTextTracks().removeEventListener('change', mediaTypes.SUBTITLES.onTrackChanged);
+        }); // clear existing audio tracks and add the ones we just created
+
+        tech.clearTracks('audio');
+        for (const id in mediaTypes.AUDIO.tracks) {
+            tech.audioTracks().addTrack(mediaTypes.AUDIO.tracks[id]);
+        }
+    };
+    /**
+     * Creates skeleton object used to store the loaders, tracks, and utility methods for each
+     * media type
+     *
+     * @return {Object}
+     *         Object to store the loaders, tracks, and utility methods for each media type
+     * @function createMediaTypes
+     */
+
+    const createMediaTypes = () => {
+        const mediaTypes = {};
+        ['AUDIO', 'SUBTITLES', 'CLOSED-CAPTIONS'].forEach(type => {
+            mediaTypes[type] = {
+                groups: {},
+                tracks: {},
+                activePlaylistLoader: null,
+                activeGroup: noop,
+                activeTrack: noop,
+                getActiveGroup: noop,
+                onGroupChanged: noop,
+                onTrackChanged: noop,
+                lastTrack_: null,
+                logger_: logger(`MediaGroups[${type}]`)
+            };
+        });
+        return mediaTypes;
+    };
+
+    /**
+     * @file playlist-controller.js
+     */
+    const ABORT_EARLY_EXCLUSION_SECONDS = 60 * 2;
+    let Vhs$1; // SegmentLoader stats that need to have each loader's
+    // values summed to calculate the final value
+
+    const loaderStats = ['mediaRequests', 'mediaRequestsAborted', 'mediaRequestsTimedout', 'mediaRequestsErrored', 'mediaTransferDuration', 'mediaBytesTransferred', 'mediaAppends'];
+    const sumLoaderStat = function (stat) {
+        return this.audioSegmentLoader_[stat] + this.mainSegmentLoader_[stat];
+    };
+    const shouldSwitchToMedia = function ({
+                                              currentPlaylist,
+                                              buffered,
+                                              currentTime,
+                                              nextPlaylist,
+                                              bufferLowWaterLine,
+                                              bufferHighWaterLine,
+                                              duration,
+                                              bufferBasedABR,
+                                              log
+                                          }) {
+        // we have no other playlist to switch to
+        if (!nextPlaylist) {
+            videojs.log.warn('We received no playlist to switch to. Please check your stream.');
+            return false;
+        }
+        const sharedLogLine = `allowing switch ${currentPlaylist && currentPlaylist.id || 'null'} -> ${nextPlaylist.id}`;
+        if (!currentPlaylist) {
+            log(`${sharedLogLine} as current playlist is not set`);
+            return true;
+        } // no need to switch if playlist is the same
+
+        if (nextPlaylist.id === currentPlaylist.id) {
+            return false;
+        } // determine if current time is in a buffered range.
+
+        const isBuffered = Boolean(findRange(buffered, currentTime).length); // If the playlist is live, then we want to not take low water line into account.
+        // This is because in LIVE, the player plays 3 segments from the end of the
+        // playlist, and if `BUFFER_LOW_WATER_LINE` is greater than the duration availble
+        // in those segments, a viewer will never experience a rendition upswitch.
+
+        if (!currentPlaylist.endList) {
+            // For LLHLS live streams, don't switch renditions before playback has started, as it almost
+            // doubles the time to first playback.
+            if (!isBuffered && typeof currentPlaylist.partTargetDuration === 'number') {
+                log(`not ${sharedLogLine} as current playlist is live llhls, but currentTime isn't in buffered.`);
+                return false;
+            }
+            log(`${sharedLogLine} as current playlist is live`);
+            return true;
+        }
+        const forwardBuffer = timeAheadOf(buffered, currentTime);
+        const maxBufferLowWaterLine = bufferBasedABR ? Config.EXPERIMENTAL_MAX_BUFFER_LOW_WATER_LINE : Config.MAX_BUFFER_LOW_WATER_LINE; // For the same reason as LIVE, we ignore the low water line when the VOD
+        // duration is below the max potential low water line
+
+        if (duration < maxBufferLowWaterLine) {
+            log(`${sharedLogLine} as duration < max low water line (${duration} < ${maxBufferLowWaterLine})`);
+            return true;
+        }
+        const nextBandwidth = nextPlaylist.attributes.BANDWIDTH;
+        const currBandwidth = currentPlaylist.attributes.BANDWIDTH; // when switching down, if our buffer is lower than the high water line,
+        // we can switch down
+
+        if (nextBandwidth < currBandwidth && (!bufferBasedABR || forwardBuffer < bufferHighWaterLine)) {
+            let logLine = `${sharedLogLine} as next bandwidth < current bandwidth (${nextBandwidth} < ${currBandwidth})`;
+            if (bufferBasedABR) {
+                logLine += ` and forwardBuffer < bufferHighWaterLine (${forwardBuffer} < ${bufferHighWaterLine})`;
+            }
+            log(logLine);
+            return true;
+        } // and if our buffer is higher than the low water line,
+        // we can switch up
+
+        if ((!bufferBasedABR || nextBandwidth > currBandwidth) && forwardBuffer >= bufferLowWaterLine) {
+            let logLine = `${sharedLogLine} as forwardBuffer >= bufferLowWaterLine (${forwardBuffer} >= ${bufferLowWaterLine})`;
+            if (bufferBasedABR) {
+                logLine += ` and next bandwidth > current bandwidth (${nextBandwidth} > ${currBandwidth})`;
+            }
+            log(logLine);
+            return true;
+        }
+        log(`not ${sharedLogLine} as no switching criteria met`);
+        return false;
+    };
+    /**
+     * the main playlist controller controller all interactons
+     * between playlists and segmentloaders. At this time this mainly
+     * involves a main playlist and a series of audio playlists
+     * if they are available
+     *
+     * @class PlaylistController
+     * @extends videojs.EventTarget
+     */
+
+    class PlaylistController extends videojs.EventTarget {
+        constructor(options) {
+            super();
+            const {
+                src,
+                withCredentials,
+                tech,
+                bandwidth,
+                externVhs,
+                useCueTags,
+                playlistExclusionDuration,
+                enableLowInitialPlaylist,
+                sourceType,
+                cacheEncryptionKeys,
+                bufferBasedABR,
+                leastPixelDiffSelector,
+                captionServices
+            } = options;
+            if (!src) {
+                throw new Error('A non-empty playlist URL or JSON manifest string is required');
+            }
+            let {
+                maxPlaylistRetries
+            } = options;
+            if (maxPlaylistRetries === null || typeof maxPlaylistRetries === 'undefined') {
+                maxPlaylistRetries = Infinity;
+            }
+            Vhs$1 = externVhs;
+            this.bufferBasedABR = Boolean(bufferBasedABR);
+            this.leastPixelDiffSelector = Boolean(leastPixelDiffSelector);
+            this.withCredentials = withCredentials;
+            this.tech_ = tech;
+            this.vhs_ = tech.vhs;
+            this.sourceType_ = sourceType;
+            this.useCueTags_ = useCueTags;
+            this.playlistExclusionDuration = playlistExclusionDuration;
+            this.maxPlaylistRetries = maxPlaylistRetries;
+            this.enableLowInitialPlaylist = enableLowInitialPlaylist;
+            if (this.useCueTags_) {
+                this.cueTagsTrack_ = this.tech_.addTextTrack('metadata', 'ad-cues');
+                this.cueTagsTrack_.inBandMetadataTrackDispatchType = '';
+            }
+            this.requestOptions_ = {
+                withCredentials,
+                maxPlaylistRetries,
+                timeout: null
+            };
+            this.on('error', this.pauseLoading);
+            this.mediaTypes_ = createMediaTypes();
+            this.mediaSource = new window.MediaSource();
+            this.handleDurationChange_ = this.handleDurationChange_.bind(this);
+            this.handleSourceOpen_ = this.handleSourceOpen_.bind(this);
+            this.handleSourceEnded_ = this.handleSourceEnded_.bind(this);
+            this.mediaSource.addEventListener('durationchange', this.handleDurationChange_); // load the media source into the player
+
+            this.mediaSource.addEventListener('sourceopen', this.handleSourceOpen_);
+            this.mediaSource.addEventListener('sourceended', this.handleSourceEnded_); // we don't have to handle sourceclose since dispose will handle termination of
+            // everything, and the MediaSource should not be detached without a proper disposal
+
+            this.seekable_ = createTimeRanges();
+            this.hasPlayed_ = false;
+            this.syncController_ = new SyncController(options);
+            this.segmentMetadataTrack_ = tech.addRemoteTextTrack({
+                kind: 'metadata',
+                label: 'segment-metadata'
+            }, false).track;
+            this.decrypter_ = new Decrypter();
+            this.sourceUpdater_ = new SourceUpdater(this.mediaSource);
+            this.inbandTextTracks_ = {};
+            this.timelineChangeController_ = new TimelineChangeController();
+            const segmentLoaderSettings = {
+                vhs: this.vhs_,
+                parse708captions: options.parse708captions,
+                useDtsForTimestampOffset: options.useDtsForTimestampOffset,
+                captionServices,
+                mediaSource: this.mediaSource,
+                currentTime: this.tech_.currentTime.bind(this.tech_),
+                seekable: () => this.seekable(),
+                seeking: () => this.tech_.seeking(),
+                duration: () => this.duration(),
+                hasPlayed: () => this.hasPlayed_,
+                goalBufferLength: () => this.goalBufferLength(),
+                bandwidth,
+                syncController: this.syncController_,
+                decrypter: this.decrypter_,
+                sourceType: this.sourceType_,
+                inbandTextTracks: this.inbandTextTracks_,
+                cacheEncryptionKeys,
+                sourceUpdater: this.sourceUpdater_,
+                timelineChangeController: this.timelineChangeController_,
+                exactManifestTimings: options.exactManifestTimings
+            }; // The source type check not only determines whether a special DASH playlist loader
+            // should be used, but also covers the case where the provided src is a vhs-json
+            // manifest object (instead of a URL). In the case of vhs-json, the default
+            // PlaylistLoader should be used.
+
+            this.mainPlaylistLoader_ = this.sourceType_ === 'dash' ? new DashPlaylistLoader(src, this.vhs_, this.requestOptions_) : new PlaylistLoader(src, this.vhs_, this.requestOptions_);
+            this.setupMainPlaylistLoaderListeners_(); // setup segment loaders
+            // combined audio/video or just video when alternate audio track is selected
+
+            this.mainSegmentLoader_ = new SegmentLoader(merge(segmentLoaderSettings, {
+                segmentMetadataTrack: this.segmentMetadataTrack_,
+                loaderType: 'main'
+            }), options); // alternate audio track
+
+            this.audioSegmentLoader_ = new SegmentLoader(merge(segmentLoaderSettings, {
+                loaderType: 'audio'
+            }), options);
+            this.subtitleSegmentLoader_ = new VTTSegmentLoader(merge(segmentLoaderSettings, {
+                loaderType: 'vtt',
+                featuresNativeTextTracks: this.tech_.featuresNativeTextTracks,
+                loadVttJs: () => new Promise((resolve, reject) => {
+                    function onLoad() {
+                        tech.off('vttjserror', onError);
+                        resolve();
+                    }
+                    function onError() {
+                        tech.off('vttjsloaded', onLoad);
+                        reject();
+                    }
+                    tech.one('vttjsloaded', onLoad);
+                    tech.one('vttjserror', onError); // safe to call multiple times, script will be loaded only once:
+
+                    tech.addWebVttScript_();
+                })
+            }), options);
+            this.setupSegmentLoaderListeners_();
+            if (this.bufferBasedABR) {
+                this.mainPlaylistLoader_.one('loadedplaylist', () => this.startABRTimer_());
+                this.tech_.on('pause', () => this.stopABRTimer_());
+                this.tech_.on('play', () => this.startABRTimer_());
+            } // Create SegmentLoader stat-getters
+            // mediaRequests_
+            // mediaRequestsAborted_
+            // mediaRequestsTimedout_
+            // mediaRequestsErrored_
+            // mediaTransferDuration_
+            // mediaBytesTransferred_
+            // mediaAppends_
+
+            loaderStats.forEach(stat => {
+                this[stat + '_'] = sumLoaderStat.bind(this, stat);
+            });
+            this.logger_ = logger('pc');
+            this.triggeredFmp4Usage = false;
+            if (this.tech_.preload() === 'none') {
+                this.loadOnPlay_ = () => {
+                    this.loadOnPlay_ = null;
+                    this.mainPlaylistLoader_.load();
+                };
+                this.tech_.one('play', this.loadOnPlay_);
+            } else {
+                this.mainPlaylistLoader_.load();
+            }
+            this.timeToLoadedData__ = -1;
+            this.mainAppendsToLoadedData__ = -1;
+            this.audioAppendsToLoadedData__ = -1;
+            const event = this.tech_.preload() === 'none' ? 'play' : 'loadstart'; // start the first frame timer on loadstart or play (for preload none)
+
+            this.tech_.one(event, () => {
+                const timeToLoadedDataStart = Date.now();
+                this.tech_.one('loadeddata', () => {
+                    this.timeToLoadedData__ = Date.now() - timeToLoadedDataStart;
+                    this.mainAppendsToLoadedData__ = this.mainSegmentLoader_.mediaAppends;
+                    this.audioAppendsToLoadedData__ = this.audioSegmentLoader_.mediaAppends;
+                });
+            });
+        }
+        mainAppendsToLoadedData_() {
+            return this.mainAppendsToLoadedData__;
+        }
+        audioAppendsToLoadedData_() {
+            return this.audioAppendsToLoadedData__;
+        }
+        appendsToLoadedData_() {
+            const main = this.mainAppendsToLoadedData_();
+            const audio = this.audioAppendsToLoadedData_();
+            if (main === -1 || audio === -1) {
+                return -1;
+            }
+            return main + audio;
+        }
+        timeToLoadedData_() {
+            return this.timeToLoadedData__;
+        }
+        /**
+         * Run selectPlaylist and switch to the new playlist if we should
+         *
+         * @param {string} [reason=abr] a reason for why the ABR check is made
+         * @private
+         */
+
+        checkABR_(reason = 'abr') {
+            const nextPlaylist = this.selectPlaylist();
+            if (nextPlaylist && this.shouldSwitchToMedia_(nextPlaylist)) {
+                this.switchMedia_(nextPlaylist, reason);
+            }
+        }
+        switchMedia_(playlist, cause, delay) {
+            const oldMedia = this.media();
+            const oldId = oldMedia && (oldMedia.id || oldMedia.uri);
+            const newId = playlist.id || playlist.uri;
+            if (oldId && oldId !== newId) {
+                this.logger_(`switch media ${oldId} -> ${newId} from ${cause}`);
+                this.tech_.trigger({
+                    type: 'usage',
+                    name: `vhs-rendition-change-${cause}`
+                });
+            }
+            this.mainPlaylistLoader_.media(playlist, delay);
+        }
+        /**
+         * Start a timer that periodically calls checkABR_
+         *
+         * @private
+         */
+
+        startABRTimer_() {
+            this.stopABRTimer_();
+            this.abrTimer_ = window.setInterval(() => this.checkABR_(), 250);
+        }
+        /**
+         * Stop the timer that periodically calls checkABR_
+         *
+         * @private
+         */
+
+        stopABRTimer_() {
+            // if we're scrubbing, we don't need to pause.
+            // This getter will be added to Video.js in version 7.11.
+            if (this.tech_.scrubbing && this.tech_.scrubbing()) {
+                return;
+            }
+            window.clearInterval(this.abrTimer_);
+            this.abrTimer_ = null;
+        }
+        /**
+         * Get a list of playlists for the currently selected audio playlist
+         *
+         * @return {Array} the array of audio playlists
+         */
+
+        getAudioTrackPlaylists_() {
+            const main = this.main();
+            const defaultPlaylists = main && main.playlists || []; // if we don't have any audio groups then we can only
+            // assume that the audio tracks are contained in main
+            // playlist array, use that or an empty array.
+
+            if (!main || !main.mediaGroups || !main.mediaGroups.AUDIO) {
+                return defaultPlaylists;
+            }
+            const AUDIO = main.mediaGroups.AUDIO;
+            const groupKeys = Object.keys(AUDIO);
+            let track; // get the current active track
+
+            if (Object.keys(this.mediaTypes_.AUDIO.groups).length) {
+                track = this.mediaTypes_.AUDIO.activeTrack(); // or get the default track from main if mediaTypes_ isn't setup yet
+            } else {
+                // default group is `main` or just the first group.
+                const defaultGroup = AUDIO.main || groupKeys.length && AUDIO[groupKeys[0]];
+                for (const label in defaultGroup) {
+                    if (defaultGroup[label].default) {
+                        track = {
+                            label
+                        };
+                        break;
+                    }
+                }
+            } // no active track no playlists.
+
+            if (!track) {
+                return defaultPlaylists;
+            }
+            const playlists = []; // get all of the playlists that are possible for the
+            // active track.
+
+            for (const group in AUDIO) {
+                if (AUDIO[group][track.label]) {
+                    const properties = AUDIO[group][track.label];
+                    if (properties.playlists && properties.playlists.length) {
+                        playlists.push.apply(playlists, properties.playlists);
+                    } else if (properties.uri) {
+                        playlists.push(properties);
+                    } else if (main.playlists.length) {
+                        // if an audio group does not have a uri
+                        // see if we have main playlists that use it as a group.
+                        // if we do then add those to the playlists list.
+                        for (let i = 0; i < main.playlists.length; i++) {
+                            const playlist = main.playlists[i];
+                            if (playlist.attributes && playlist.attributes.AUDIO && playlist.attributes.AUDIO === group) {
+                                playlists.push(playlist);
+                            }
+                        }
+                    }
+                }
+            }
+            if (!playlists.length) {
+                return defaultPlaylists;
+            }
+            return playlists;
+        }
+        /**
+         * Register event handlers on the main playlist loader. A helper
+         * function for construction time.
+         *
+         * @private
+         */
+
+        setupMainPlaylistLoaderListeners_() {
+            this.mainPlaylistLoader_.on('loadedmetadata', () => {
+                const media = this.mainPlaylistLoader_.media();
+                const requestTimeout = media.targetDuration * 1.5 * 1000; // If we don't have any more available playlists, we don't want to
+                // timeout the request.
+
+                if (isLowestEnabledRendition(this.mainPlaylistLoader_.main, this.mainPlaylistLoader_.media())) {
+                    this.requestOptions_.timeout = 0;
+                } else {
+                    this.requestOptions_.timeout = requestTimeout;
+                } // if this isn't a live video and preload permits, start
+                // downloading segments
+
+                if (media.endList && this.tech_.preload() !== 'none') {
+                    this.mainSegmentLoader_.playlist(media, this.requestOptions_);
+                    this.mainSegmentLoader_.load();
+                }
+                setupMediaGroups({
+                    sourceType: this.sourceType_,
+                    segmentLoaders: {
+                        AUDIO: this.audioSegmentLoader_,
+                        SUBTITLES: this.subtitleSegmentLoader_,
+                        main: this.mainSegmentLoader_
+                    },
+                    tech: this.tech_,
+                    requestOptions: this.requestOptions_,
+                    mainPlaylistLoader: this.mainPlaylistLoader_,
+                    vhs: this.vhs_,
+                    main: this.main(),
+                    mediaTypes: this.mediaTypes_,
+                    excludePlaylist: this.excludePlaylist.bind(this)
+                });
+                this.triggerPresenceUsage_(this.main(), media);
+                this.setupFirstPlay();
+                if (!this.mediaTypes_.AUDIO.activePlaylistLoader || this.mediaTypes_.AUDIO.activePlaylistLoader.media()) {
+                    this.trigger('selectedinitialmedia');
+                } else {
+                    // We must wait for the active audio playlist loader to
+                    // finish setting up before triggering this event so the
+                    // representations API and EME setup is correct
+                    this.mediaTypes_.AUDIO.activePlaylistLoader.one('loadedmetadata', () => {
+                        this.trigger('selectedinitialmedia');
+                    });
+                }
+            });
+            this.mainPlaylistLoader_.on('loadedplaylist', () => {
+                if (this.loadOnPlay_) {
+                    this.tech_.off('play', this.loadOnPlay_);
+                }
+                let updatedPlaylist = this.mainPlaylistLoader_.media();
+                if (!updatedPlaylist) {
+                    // exclude any variants that are not supported by the browser before selecting
+                    // an initial media as the playlist selectors do not consider browser support
+                    this.excludeUnsupportedVariants_();
+                    let selectedMedia;
+                    if (this.enableLowInitialPlaylist) {
+                        selectedMedia = this.selectInitialPlaylist();
+                    }
+                    if (!selectedMedia) {
+                        selectedMedia = this.selectPlaylist();
+                    }
+                    if (!selectedMedia || !this.shouldSwitchToMedia_(selectedMedia)) {
+                        return;
+                    }
+                    this.initialMedia_ = selectedMedia;
+                    this.switchMedia_(this.initialMedia_, 'initial'); // Under the standard case where a source URL is provided, loadedplaylist will
+                    // fire again since the playlist will be requested. In the case of vhs-json
+                    // (where the manifest object is provided as the source), when the media
+                    // playlist's `segments` list is already available, a media playlist won't be
+                    // requested, and loadedplaylist won't fire again, so the playlist handler must be
+                    // called on its own here.
+
+                    const haveJsonSource = this.sourceType_ === 'vhs-json' && this.initialMedia_.segments;
+                    if (!haveJsonSource) {
+                        return;
+                    }
+                    updatedPlaylist = this.initialMedia_;
+                }
+                this.handleUpdatedMediaPlaylist(updatedPlaylist);
+            });
+            this.mainPlaylistLoader_.on('error', () => {
+                const error = this.mainPlaylistLoader_.error;
+                this.excludePlaylist({
+                    playlistToExclude: error.playlist,
+                    error
+                });
+            });
+            this.mainPlaylistLoader_.on('mediachanging', () => {
+                this.mainSegmentLoader_.abort();
+                this.mainSegmentLoader_.pause();
+            });
+            this.mainPlaylistLoader_.on('mediachange', () => {
+                const media = this.mainPlaylistLoader_.media();
+                const requestTimeout = media.targetDuration * 1.5 * 1000; // If we don't have any more available playlists, we don't want to
+                // timeout the request.
+
+                if (isLowestEnabledRendition(this.mainPlaylistLoader_.main, this.mainPlaylistLoader_.media())) {
+                    this.requestOptions_.timeout = 0;
+                } else {
+                    this.requestOptions_.timeout = requestTimeout;
+                }
+                this.mainPlaylistLoader_.load(); // TODO: Create a new event on the PlaylistLoader that signals
+                // that the segments have changed in some way and use that to
+                // update the SegmentLoader instead of doing it twice here and
+                // on `loadedplaylist`
+
+                this.mainSegmentLoader_.playlist(media, this.requestOptions_);
+                this.mainSegmentLoader_.load();
+                this.tech_.trigger({
+                    type: 'mediachange',
+                    bubbles: true
+                });
+            });
+            this.mainPlaylistLoader_.on('playlistunchanged', () => {
+                const updatedPlaylist = this.mainPlaylistLoader_.media(); // ignore unchanged playlists that have already been
+                // excluded for not-changing. We likely just have a really slowly updating
+                // playlist.
+
+                if (updatedPlaylist.lastExcludeReason_ === 'playlist-unchanged') {
+                    return;
+                }
+                const playlistOutdated = this.stuckAtPlaylistEnd_(updatedPlaylist);
+                if (playlistOutdated) {
+                    // Playlist has stopped updating and we're stuck at its end. Try to
+                    // exclude it and switch to another playlist in the hope that that
+                    // one is updating (and give the player a chance to re-adjust to the
+                    // safe live point).
+                    this.excludePlaylist({
+                        error: {
+                            message: 'Playlist no longer updating.',
+                            reason: 'playlist-unchanged'
+                        }
+                    }); // useful for monitoring QoS
+
+                    this.tech_.trigger('playliststuck');
+                }
+            });
+            this.mainPlaylistLoader_.on('renditiondisabled', () => {
+                this.tech_.trigger({
+                    type: 'usage',
+                    name: 'vhs-rendition-disabled'
+                });
+            });
+            this.mainPlaylistLoader_.on('renditionenabled', () => {
+                this.tech_.trigger({
+                    type: 'usage',
+                    name: 'vhs-rendition-enabled'
+                });
+            });
+        }
+        /**
+         * Given an updated media playlist (whether it was loaded for the first time, or
+         * refreshed for live playlists), update any relevant properties and state to reflect
+         * changes in the media that should be accounted for (e.g., cues and duration).
+         *
+         * @param {Object} updatedPlaylist the updated media playlist object
+         *
+         * @private
+         */
+
+        handleUpdatedMediaPlaylist(updatedPlaylist) {
+            if (this.useCueTags_) {
+                this.updateAdCues_(updatedPlaylist);
+            } // TODO: Create a new event on the PlaylistLoader that signals
+            // that the segments have changed in some way and use that to
+            // update the SegmentLoader instead of doing it twice here and
+            // on `mediachange`
+
+            this.mainSegmentLoader_.playlist(updatedPlaylist, this.requestOptions_);
+            this.updateDuration(!updatedPlaylist.endList); // If the player isn't paused, ensure that the segment loader is running,
+            // as it is possible that it was temporarily stopped while waiting for
+            // a playlist (e.g., in case the playlist errored and we re-requested it).
+
+            if (!this.tech_.paused()) {
+                this.mainSegmentLoader_.load();
+                if (this.audioSegmentLoader_) {
+                    this.audioSegmentLoader_.load();
+                }
+            }
+        }
+        /**
+         * A helper function for triggerring presence usage events once per source
+         *
+         * @private
+         */
+
+        triggerPresenceUsage_(main, media) {
+            const mediaGroups = main.mediaGroups || {};
+            let defaultDemuxed = true;
+            const audioGroupKeys = Object.keys(mediaGroups.AUDIO);
+            for (const mediaGroup in mediaGroups.AUDIO) {
+                for (const label in mediaGroups.AUDIO[mediaGroup]) {
+                    const properties = mediaGroups.AUDIO[mediaGroup][label];
+                    if (!properties.uri) {
+                        defaultDemuxed = false;
+                    }
+                }
+            }
+            if (defaultDemuxed) {
+                this.tech_.trigger({
+                    type: 'usage',
+                    name: 'vhs-demuxed'
+                });
+            }
+            if (Object.keys(mediaGroups.SUBTITLES).length) {
+                this.tech_.trigger({
+                    type: 'usage',
+                    name: 'vhs-webvtt'
+                });
+            }
+            if (Vhs$1.Playlist.isAes(media)) {
+                this.tech_.trigger({
+                    type: 'usage',
+                    name: 'vhs-aes'
+                });
+            }
+            if (audioGroupKeys.length && Object.keys(mediaGroups.AUDIO[audioGroupKeys[0]]).length > 1) {
+                this.tech_.trigger({
+                    type: 'usage',
+                    name: 'vhs-alternate-audio'
+                });
+            }
+            if (this.useCueTags_) {
+                this.tech_.trigger({
+                    type: 'usage',
+                    name: 'vhs-playlist-cue-tags'
+                });
+            }
+        }
+        shouldSwitchToMedia_(nextPlaylist) {
+            const currentPlaylist = this.mainPlaylistLoader_.media() || this.mainPlaylistLoader_.pendingMedia_;
+            const currentTime = this.tech_.currentTime();
+            const bufferLowWaterLine = this.bufferLowWaterLine();
+            const bufferHighWaterLine = this.bufferHighWaterLine();
+            const buffered = this.tech_.buffered();
+            return shouldSwitchToMedia({
+                buffered,
+                currentTime,
+                currentPlaylist,
+                nextPlaylist,
+                bufferLowWaterLine,
+                bufferHighWaterLine,
+                duration: this.duration(),
+                bufferBasedABR: this.bufferBasedABR,
+                log: this.logger_
+            });
+        }
+        /**
+         * Register event handlers on the segment loaders. A helper function
+         * for construction time.
+         *
+         * @private
+         */
+
+        setupSegmentLoaderListeners_() {
+            this.mainSegmentLoader_.on('bandwidthupdate', () => {
+                // Whether or not buffer based ABR or another ABR is used, on a bandwidth change it's
+                // useful to check to see if a rendition switch should be made.
+                this.checkABR_('bandwidthupdate');
+                this.tech_.trigger('bandwidthupdate');
+            });
+            this.mainSegmentLoader_.on('timeout', () => {
+                if (this.bufferBasedABR) {
+                    // If a rendition change is needed, then it would've be done on `bandwidthupdate`.
+                    // Here the only consideration is that for buffer based ABR there's no guarantee
+                    // of an immediate switch (since the bandwidth is averaged with a timeout
+                    // bandwidth value of 1), so force a load on the segment loader to keep it going.
+                    this.mainSegmentLoader_.load();
+                }
+            }); // `progress` events are not reliable enough of a bandwidth measure to trigger buffer
+            // based ABR.
+
+            if (!this.bufferBasedABR) {
+                this.mainSegmentLoader_.on('progress', () => {
+                    this.trigger('progress');
+                });
+            }
+            this.mainSegmentLoader_.on('error', () => {
+                const error = this.mainSegmentLoader_.error();
+                this.excludePlaylist({
+                    playlistToExclude: error.playlist,
+                    error
+                });
+            });
+            this.mainSegmentLoader_.on('appenderror', () => {
+                this.error = this.mainSegmentLoader_.error_;
+                this.trigger('error');
+            });
+            this.mainSegmentLoader_.on('syncinfoupdate', () => {
+                this.onSyncInfoUpdate_();
+            });
+            this.mainSegmentLoader_.on('timestampoffset', () => {
+                this.tech_.trigger({
+                    type: 'usage',
+                    name: 'vhs-timestamp-offset'
+                });
+            });
+            this.audioSegmentLoader_.on('syncinfoupdate', () => {
+                this.onSyncInfoUpdate_();
+            });
+            this.audioSegmentLoader_.on('appenderror', () => {
+                this.error = this.audioSegmentLoader_.error_;
+                this.trigger('error');
+            });
+            this.mainSegmentLoader_.on('ended', () => {
+                this.logger_('main segment loader ended');
+                this.onEndOfStream();
+            });
+            this.mainSegmentLoader_.on('earlyabort', event => {
+                // never try to early abort with the new ABR algorithm
+                if (this.bufferBasedABR) {
+                    return;
+                }
+                this.delegateLoaders_('all', ['abort']);
+                this.excludePlaylist({
+                    error: {
+                        message: 'Aborted early because there isn\'t enough bandwidth to complete ' + 'the request without rebuffering.'
+                    },
+                    playlistExclusionDuration: ABORT_EARLY_EXCLUSION_SECONDS
+                });
+            });
+            const updateCodecs = () => {
+                if (!this.sourceUpdater_.hasCreatedSourceBuffers()) {
+                    return this.tryToCreateSourceBuffers_();
+                }
+                const codecs = this.getCodecsOrExclude_(); // no codecs means that the playlist was excluded
+
+                if (!codecs) {
+                    return;
+                }
+                this.sourceUpdater_.addOrChangeSourceBuffers(codecs);
+            };
+            this.mainSegmentLoader_.on('trackinfo', updateCodecs);
+            this.audioSegmentLoader_.on('trackinfo', updateCodecs);
+            this.mainSegmentLoader_.on('fmp4', () => {
+                if (!this.triggeredFmp4Usage) {
+                    this.tech_.trigger({
+                        type: 'usage',
+                        name: 'vhs-fmp4'
+                    });
+                    this.triggeredFmp4Usage = true;
+                }
+            });
+            this.audioSegmentLoader_.on('fmp4', () => {
+                if (!this.triggeredFmp4Usage) {
+                    this.tech_.trigger({
+                        type: 'usage',
+                        name: 'vhs-fmp4'
+                    });
+                    this.triggeredFmp4Usage = true;
+                }
+            });
+            this.audioSegmentLoader_.on('ended', () => {
+                this.logger_('audioSegmentLoader ended');
+                this.onEndOfStream();
+            });
+        }
+        mediaSecondsLoaded_() {
+            return Math.max(this.audioSegmentLoader_.mediaSecondsLoaded + this.mainSegmentLoader_.mediaSecondsLoaded);
+        }
+        /**
+         * Call load on our SegmentLoaders
+         */
+
+        load() {
+            this.mainSegmentLoader_.load();
+            if (this.mediaTypes_.AUDIO.activePlaylistLoader) {
+                this.audioSegmentLoader_.load();
+            }
+            if (this.mediaTypes_.SUBTITLES.activePlaylistLoader) {
+                this.subtitleSegmentLoader_.load();
+            }
+        }
+        /**
+         * Re-tune playback quality level for the current player
+         * conditions. This method will perform destructive actions like removing
+         * already buffered content in order to readjust the currently active
+         * playlist quickly. This is good for manual quality changes
+         *
+         * @private
+         */
+
+        fastQualityChange_(media = this.selectPlaylist()) {
+            if (media === this.mainPlaylistLoader_.media()) {
+                this.logger_('skipping fastQualityChange because new media is same as old');
+                return;
+            }
+            this.switchMedia_(media, 'fast-quality'); // Delete all buffered data to allow an immediate quality switch, then seek to give
+            // the browser a kick to remove any cached frames from the previous rendtion (.04 seconds
+            // ahead is roughly the minimum that will accomplish this across a variety of content
+            // in IE and Edge, but seeking in place is sufficient on all other browsers)
+            // Edge/IE bug: https://developer.microsoft.com/en-us/microsoft-edge/platform/issues/14600375/
+            // Chrome bug: https://bugs.chromium.org/p/chromium/issues/detail?id=651904
+
+            this.mainSegmentLoader_.resetEverything(() => {
+                // Since this is not a typical seek, we avoid the seekTo method which can cause segments
+                // from the previously enabled rendition to load before the new playlist has finished loading
+                if (videojs.browser.IE_VERSION || videojs.browser.IS_EDGE) {
+                    this.tech_.setCurrentTime(this.tech_.currentTime() + 0.04);
+                } else {
+                    this.tech_.setCurrentTime(this.tech_.currentTime());
+                }
+            }); // don't need to reset audio as it is reset when media changes
+        }
+        /**
+         * Begin playback.
+         */
+
+        play() {
+            if (this.setupFirstPlay()) {
+                return;
+            }
+            if (this.tech_.ended()) {
+                this.tech_.setCurrentTime(0);
+            }
+            if (this.hasPlayed_) {
+                this.load();
+            }
+            const seekable = this.tech_.seekable(); // if the viewer has paused and we fell out of the live window,
+            // seek forward to the live point
+
+            if (this.tech_.duration() === Infinity) {
+                if (this.tech_.currentTime() < seekable.start(0)) {
+                    return this.tech_.setCurrentTime(seekable.end(seekable.length - 1));
+                }
+            }
+        }
+        /**
+         * Seek to the latest media position if this is a live video and the
+         * player and video are loaded and initialized.
+         */
+
+        setupFirstPlay() {
+            const media = this.mainPlaylistLoader_.media(); // Check that everything is ready to begin buffering for the first call to play
+            //  If 1) there is no active media
+            //     2) the player is paused
+            //     3) the first play has already been setup
+            // then exit early
+
+            if (!media || this.tech_.paused() || this.hasPlayed_) {
+                return false;
+            } // when the video is a live stream
+
+            if (!media.endList) {
+                const seekable = this.seekable();
+                if (!seekable.length) {
+                    // without a seekable range, the player cannot seek to begin buffering at the live
+                    // point
+                    return false;
+                }
+                if (videojs.browser.IE_VERSION && this.tech_.readyState() === 0) {
+                    // IE11 throws an InvalidStateError if you try to set currentTime while the
+                    // readyState is 0, so it must be delayed until the tech fires loadedmetadata.
+                    this.tech_.one('loadedmetadata', () => {
+                        this.trigger('firstplay');
+                        this.tech_.setCurrentTime(seekable.end(0));
+                        this.hasPlayed_ = true;
+                    });
+                    return false;
+                } // trigger firstplay to inform the source handler to ignore the next seek event
+
+                this.trigger('firstplay'); // seek to the live point
+
+                this.tech_.setCurrentTime(seekable.end(0));
+            }
+            this.hasPlayed_ = true; // we can begin loading now that everything is ready
+
+            this.load();
+            return true;
+        }
+        /**
+         * handle the sourceopen event on the MediaSource
+         *
+         * @private
+         */
+
+        handleSourceOpen_() {
+            // Only attempt to create the source buffer if none already exist.
+            // handleSourceOpen is also called when we are "re-opening" a source buffer
+            // after `endOfStream` has been called (in response to a seek for instance)
+            this.tryToCreateSourceBuffers_(); // if autoplay is enabled, begin playback. This is duplicative of
+            // code in video.js but is required because play() must be invoked
+            // *after* the media source has opened.
+
+            if (this.tech_.autoplay()) {
+                const playPromise = this.tech_.play(); // Catch/silence error when a pause interrupts a play request
+                // on browsers which return a promise
+
+                if (typeof playPromise !== 'undefined' && typeof playPromise.then === 'function') {
+                    playPromise.then(null, e => {});
+                }
+            }
+            this.trigger('sourceopen');
+        }
+        /**
+         * handle the sourceended event on the MediaSource
+         *
+         * @private
+         */
+
+        handleSourceEnded_() {
+            if (!this.inbandTextTracks_.metadataTrack_) {
+                return;
+            }
+            const cues = this.inbandTextTracks_.metadataTrack_.cues;
+            if (!cues || !cues.length) {
+                return;
+            }
+            const duration = this.duration();
+            cues[cues.length - 1].endTime = isNaN(duration) || Math.abs(duration) === Infinity ? Number.MAX_VALUE : duration;
+        }
+        /**
+         * handle the durationchange event on the MediaSource
+         *
+         * @private
+         */
+
+        handleDurationChange_() {
+            this.tech_.trigger('durationchange');
+        }
+        /**
+         * Calls endOfStream on the media source when all active stream types have called
+         * endOfStream
+         *
+         * @param {string} streamType
+         *        Stream type of the segment loader that called endOfStream
+         * @private
+         */
+
+        onEndOfStream() {
+            let isEndOfStream = this.mainSegmentLoader_.ended_;
+            if (this.mediaTypes_.AUDIO.activePlaylistLoader) {
+                const mainMediaInfo = this.mainSegmentLoader_.getCurrentMediaInfo_(); // if the audio playlist loader exists, then alternate audio is active
+
+                if (!mainMediaInfo || mainMediaInfo.hasVideo) {
+                    // if we do not know if the main segment loader contains video yet or if we
+                    // definitively know the main segment loader contains video, then we need to wait
+                    // for both main and audio segment loaders to call endOfStream
+                    isEndOfStream = isEndOfStream && this.audioSegmentLoader_.ended_;
+                } else {
+                    // otherwise just rely on the audio loader
+                    isEndOfStream = this.audioSegmentLoader_.ended_;
+                }
+            }
+            if (!isEndOfStream) {
+                return;
+            }
+            this.stopABRTimer_();
+            this.sourceUpdater_.endOfStream();
+        }
+        /**
+         * Check if a playlist has stopped being updated
+         *
+         * @param {Object} playlist the media playlist object
+         * @return {boolean} whether the playlist has stopped being updated or not
+         */
+
+        stuckAtPlaylistEnd_(playlist) {
+            const seekable = this.seekable();
+            if (!seekable.length) {
+                // playlist doesn't have enough information to determine whether we are stuck
+                return false;
+            }
+            const expired = this.syncController_.getExpiredTime(playlist, this.duration());
+            if (expired === null) {
+                return false;
+            } // does not use the safe live end to calculate playlist end, since we
+            // don't want to say we are stuck while there is still content
+
+            const absolutePlaylistEnd = Vhs$1.Playlist.playlistEnd(playlist, expired);
+            const currentTime = this.tech_.currentTime();
+            const buffered = this.tech_.buffered();
+            if (!buffered.length) {
+                // return true if the playhead reached the absolute end of the playlist
+                return absolutePlaylistEnd - currentTime <= SAFE_TIME_DELTA;
+            }
+            const bufferedEnd = buffered.end(buffered.length - 1); // return true if there is too little buffer left and buffer has reached absolute
+            // end of playlist
+
+            return bufferedEnd - currentTime <= SAFE_TIME_DELTA && absolutePlaylistEnd - bufferedEnd <= SAFE_TIME_DELTA;
+        }
+        /**
+         * Exclude a playlist for a set amount of time, making it unavailable for selection by
+         * the rendition selection algorithm, then force a new playlist (rendition) selection.
+         *
+         * @param {Object=} playlistToExclude
+         *                  the playlist to exclude, defaults to the currently selected playlist
+         * @param {Object=} error
+         *                  an optional error
+         * @param {number=} playlistExclusionDuration
+         *                  an optional number of seconds to exclude the playlist
+         */
+
+        excludePlaylist({
+                            playlistToExclude = this.mainPlaylistLoader_.media(),
+                            error = {},
+                            playlistExclusionDuration
+                        }) {
+            // If the `error` was generated by the playlist loader, it will contain
+            // the playlist we were trying to load (but failed) and that should be
+            // excluded instead of the currently selected playlist which is likely
+            // out-of-date in this scenario
+            playlistToExclude = playlistToExclude || this.mainPlaylistLoader_.media();
+            playlistExclusionDuration = playlistExclusionDuration || error.playlistExclusionDuration || this.playlistExclusionDuration; // If there is no current playlist, then an error occurred while we were
+            // trying to load the main OR while we were disposing of the tech
+
+            if (!playlistToExclude) {
+                this.error = error;
+                if (this.mediaSource.readyState !== 'open') {
+                    this.trigger('error');
+                } else {
+                    this.sourceUpdater_.endOfStream('network');
+                }
+                return;
+            }
+            playlistToExclude.playlistErrors_++;
+            const playlists = this.mainPlaylistLoader_.main.playlists;
+            const enabledPlaylists = playlists.filter(isEnabled);
+            const isFinalRendition = enabledPlaylists.length === 1 && enabledPlaylists[0] === playlistToExclude; // Don't exclude the only playlist unless it was excluded
+            // forever
+
+            if (playlists.length === 1 && playlistExclusionDuration !== Infinity) {
+                videojs.log.warn(`Problem encountered with playlist ${playlistToExclude.id}. ` + 'Trying again since it is the only playlist.');
+                this.tech_.trigger('retryplaylist'); // if this is a final rendition, we should delay
+
+                return this.mainPlaylistLoader_.load(isFinalRendition);
+            }
+            if (isFinalRendition) {
+                // Since we're on the final non-excluded playlist, and we're about to exclude
+                // it, instead of erring the player or retrying this playlist, clear out the current
+                // exclusion list. This allows other playlists to be attempted in case any have been
+                // fixed.
+                let reincluded = false;
+                playlists.forEach(playlist => {
+                    // skip current playlist which is about to be excluded
+                    if (playlist === playlistToExclude) {
+                        return;
+                    }
+                    const excludeUntil = playlist.excludeUntil; // a playlist cannot be reincluded if it wasn't excluded to begin with.
+
+                    if (typeof excludeUntil !== 'undefined' && excludeUntil !== Infinity) {
+                        reincluded = true;
+                        delete playlist.excludeUntil;
+                    }
+                });
+                if (reincluded) {
+                    videojs.log.warn('Removing other playlists from the exclusion list because the last ' + 'rendition is about to be excluded.'); // Technically we are retrying a playlist, in that we are simply retrying a previous
+                    // playlist. This is needed for users relying on the retryplaylist event to catch a
+                    // case where the player might be stuck and looping through "dead" playlists.
+
+                    this.tech_.trigger('retryplaylist');
+                }
+            } // Exclude this playlist
+
+            let excludeUntil;
+            if (playlistToExclude.playlistErrors_ > this.maxPlaylistRetries) {
+                excludeUntil = Infinity;
+            } else {
+                excludeUntil = Date.now() + playlistExclusionDuration * 1000;
+            }
+            playlistToExclude.excludeUntil = excludeUntil;
+            if (error.reason) {
+                playlistToExclude.lastExcludeReason_ = error.reason;
+            }
+            this.tech_.trigger('excludeplaylist');
+            this.tech_.trigger({
+                type: 'usage',
+                name: 'vhs-rendition-excluded'
+            }); // TODO: only load a new playlist if we're excluding the current playlist
+            // If this function was called with a playlist that's not the current active playlist
+            // (e.g., media().id !== playlistToExclude.id),
+            // then a new playlist should not be selected and loaded, as there's nothing wrong with the current playlist.
+
+            const nextPlaylist = this.selectPlaylist();
+            if (!nextPlaylist) {
+                this.error = 'Playback cannot continue. No available working or supported playlists.';
+                this.trigger('error');
+                return;
+            }
+            const logFn = error.internal ? this.logger_ : videojs.log.warn;
+            const errorMessage = error.message ? ' ' + error.message : '';
+            logFn(`${error.internal ? 'Internal problem' : 'Problem'} encountered with playlist ${playlistToExclude.id}.` + `${errorMessage} Switching to playlist ${nextPlaylist.id}.`); // if audio group changed reset audio loaders
+
+            if (nextPlaylist.attributes.AUDIO !== playlistToExclude.attributes.AUDIO) {
+                this.delegateLoaders_('audio', ['abort', 'pause']);
+            } // if subtitle group changed reset subtitle loaders
+
+            if (nextPlaylist.attributes.SUBTITLES !== playlistToExclude.attributes.SUBTITLES) {
+                this.delegateLoaders_('subtitle', ['abort', 'pause']);
+            }
+            this.delegateLoaders_('main', ['abort', 'pause']);
+            const delayDuration = nextPlaylist.targetDuration / 2 * 1000 || 5 * 1000;
+            const shouldDelay = typeof nextPlaylist.lastRequest === 'number' && Date.now() - nextPlaylist.lastRequest <= delayDuration; // delay if it's a final rendition or if the last refresh is sooner than half targetDuration
+
+            return this.switchMedia_(nextPlaylist, 'exclude', isFinalRendition || shouldDelay);
+        }
+        /**
+         * Pause all segment/playlist loaders
+         */
+
+        pauseLoading() {
+            this.delegateLoaders_('all', ['abort', 'pause']);
+            this.stopABRTimer_();
+        }
+        /**
+         * Call a set of functions in order on playlist loaders, segment loaders,
+         * or both types of loaders.
+         *
+         * @param {string} filter
+         *        Filter loaders that should call fnNames using a string. Can be:
+         *        * all - run on all loaders
+         *        * audio - run on all audio loaders
+         *        * subtitle - run on all subtitle loaders
+         *        * main - run on the main loaders
+         *
+         * @param {Array|string} fnNames
+         *        A string or array of function names to call.
+         */
+
+        delegateLoaders_(filter, fnNames) {
+            const loaders = [];
+            const dontFilterPlaylist = filter === 'all';
+            if (dontFilterPlaylist || filter === 'main') {
+                loaders.push(this.mainPlaylistLoader_);
+            }
+            const mediaTypes = [];
+            if (dontFilterPlaylist || filter === 'audio') {
+                mediaTypes.push('AUDIO');
+            }
+            if (dontFilterPlaylist || filter === 'subtitle') {
+                mediaTypes.push('CLOSED-CAPTIONS');
+                mediaTypes.push('SUBTITLES');
+            }
+            mediaTypes.forEach(mediaType => {
+                const loader = this.mediaTypes_[mediaType] && this.mediaTypes_[mediaType].activePlaylistLoader;
+                if (loader) {
+                    loaders.push(loader);
+                }
+            });
+            ['main', 'audio', 'subtitle'].forEach(name => {
+                const loader = this[`${name}SegmentLoader_`];
+                if (loader && (filter === name || filter === 'all')) {
+                    loaders.push(loader);
+                }
+            });
+            loaders.forEach(loader => fnNames.forEach(fnName => {
+                if (typeof loader[fnName] === 'function') {
+                    loader[fnName]();
+                }
+            }));
+        }
+        /**
+         * set the current time on all segment loaders
+         *
+         * @param {TimeRange} currentTime the current time to set
+         * @return {TimeRange} the current time
+         */
+
+        setCurrentTime(currentTime) {
+            const buffered = findRange(this.tech_.buffered(), currentTime);
+            if (!(this.mainPlaylistLoader_ && this.mainPlaylistLoader_.media())) {
+                // return immediately if the metadata is not ready yet
+                return 0;
+            } // it's clearly an edge-case but don't thrown an error if asked to
+            // seek within an empty playlist
+
+            if (!this.mainPlaylistLoader_.media().segments) {
+                return 0;
+            } // if the seek location is already buffered, continue buffering as usual
+
+            if (buffered && buffered.length) {
+                return currentTime;
+            } // cancel outstanding requests so we begin buffering at the new
+            // location
+
+            this.mainSegmentLoader_.resetEverything();
+            this.mainSegmentLoader_.abort();
+            if (this.mediaTypes_.AUDIO.activePlaylistLoader) {
+                this.audioSegmentLoader_.resetEverything();
+                this.audioSegmentLoader_.abort();
+            }
+            if (this.mediaTypes_.SUBTITLES.activePlaylistLoader) {
+                this.subtitleSegmentLoader_.resetEverything();
+                this.subtitleSegmentLoader_.abort();
+            } // start segment loader loading in case they are paused
+
+            this.load();
+        }
+        /**
+         * get the current duration
+         *
+         * @return {TimeRange} the duration
+         */
+
+        duration() {
+            if (!this.mainPlaylistLoader_) {
+                return 0;
+            }
+            const media = this.mainPlaylistLoader_.media();
+            if (!media) {
+                // no playlists loaded yet, so can't determine a duration
+                return 0;
+            } // Don't rely on the media source for duration in the case of a live playlist since
+            // setting the native MediaSource's duration to infinity ends up with consequences to
+            // seekable behavior. See https://github.com/w3c/media-source/issues/5 for details.
+            //
+            // This is resolved in the spec by https://github.com/w3c/media-source/pull/92,
+            // however, few browsers have support for setLiveSeekableRange()
+            // https://developer.mozilla.org/en-US/docs/Web/API/MediaSource/setLiveSeekableRange
+            //
+            // Until a time when the duration of the media source can be set to infinity, and a
+            // seekable range specified across browsers, just return Infinity.
+
+            if (!media.endList) {
+                return Infinity;
+            } // Since this is a VOD video, it is safe to rely on the media source's duration (if
+            // available). If it's not available, fall back to a playlist-calculated estimate.
+
+            if (this.mediaSource) {
+                return this.mediaSource.duration;
+            }
+            return Vhs$1.Playlist.duration(media);
+        }
+        /**
+         * check the seekable range
+         *
+         * @return {TimeRange} the seekable range
+         */
+
+        seekable() {
+            return this.seekable_;
+        }
+        onSyncInfoUpdate_() {
+            let audioSeekable; // TODO check for creation of both source buffers before updating seekable
+            //
+            // A fix was made to this function where a check for
+            // this.sourceUpdater_.hasCreatedSourceBuffers
+            // was added to ensure that both source buffers were created before seekable was
+            // updated. However, it originally had a bug where it was checking for a true and
+            // returning early instead of checking for false. Setting it to check for false to
+            // return early though created other issues. A call to play() would check for seekable
+            // end without verifying that a seekable range was present. In addition, even checking
+            // for that didn't solve some issues, as handleFirstPlay is sometimes worked around
+            // due to a media update calling load on the segment loaders, skipping a seek to live,
+            // thereby starting live streams at the beginning of the stream rather than at the end.
+            //
+            // This conditional should be fixed to wait for the creation of two source buffers at
+            // the same time as the other sections of code are fixed to properly seek to live and
+            // not throw an error due to checking for a seekable end when no seekable range exists.
+            //
+            // For now, fall back to the older behavior, with the understanding that the seekable
+            // range may not be completely correct, leading to a suboptimal initial live point.
+
+            if (!this.mainPlaylistLoader_) {
+                return;
+            }
+            let media = this.mainPlaylistLoader_.media();
+            if (!media) {
+                return;
+            }
+            let expired = this.syncController_.getExpiredTime(media, this.duration());
+            if (expired === null) {
+                // not enough information to update seekable
+                return;
+            }
+            const main = this.mainPlaylistLoader_.main;
+            const mainSeekable = Vhs$1.Playlist.seekable(media, expired, Vhs$1.Playlist.liveEdgeDelay(main, media));
+            if (mainSeekable.length === 0) {
+                return;
+            }
+            if (this.mediaTypes_.AUDIO.activePlaylistLoader) {
+                media = this.mediaTypes_.AUDIO.activePlaylistLoader.media();
+                expired = this.syncController_.getExpiredTime(media, this.duration());
+                if (expired === null) {
+                    return;
+                }
+                audioSeekable = Vhs$1.Playlist.seekable(media, expired, Vhs$1.Playlist.liveEdgeDelay(main, media));
+                if (audioSeekable.length === 0) {
+                    return;
+                }
+            }
+            let oldEnd;
+            let oldStart;
+            if (this.seekable_ && this.seekable_.length) {
+                oldEnd = this.seekable_.end(0);
+                oldStart = this.seekable_.start(0);
+            }
+            if (!audioSeekable) {
+                // seekable has been calculated based on buffering video data so it
+                // can be returned directly
+                this.seekable_ = mainSeekable;
+            } else if (audioSeekable.start(0) > mainSeekable.end(0) || mainSeekable.start(0) > audioSeekable.end(0)) {
+                // seekables are pretty far off, rely on main
+                this.seekable_ = mainSeekable;
+            } else {
+                this.seekable_ = createTimeRanges([[audioSeekable.start(0) > mainSeekable.start(0) ? audioSeekable.start(0) : mainSeekable.start(0), audioSeekable.end(0) < mainSeekable.end(0) ? audioSeekable.end(0) : mainSeekable.end(0)]]);
+            } // seekable is the same as last time
+
+            if (this.seekable_ && this.seekable_.length) {
+                if (this.seekable_.end(0) === oldEnd && this.seekable_.start(0) === oldStart) {
+                    return;
+                }
+            }
+            this.logger_(`seekable updated [${printableRange(this.seekable_)}]`);
+            this.tech_.trigger('seekablechanged');
+        }
+        /**
+         * Update the player duration
+         */
+
+        updateDuration(isLive) {
+            if (this.updateDuration_) {
+                this.mediaSource.removeEventListener('sourceopen', this.updateDuration_);
+                this.updateDuration_ = null;
+            }
+            if (this.mediaSource.readyState !== 'open') {
+                this.updateDuration_ = this.updateDuration.bind(this, isLive);
+                this.mediaSource.addEventListener('sourceopen', this.updateDuration_);
+                return;
+            }
+            if (isLive) {
+                const seekable = this.seekable();
+                if (!seekable.length) {
+                    return;
+                } // Even in the case of a live playlist, the native MediaSource's duration should not
+                // be set to Infinity (even though this would be expected for a live playlist), since
+                // setting the native MediaSource's duration to infinity ends up with consequences to
+                // seekable behavior. See https://github.com/w3c/media-source/issues/5 for details.
+                //
+                // This is resolved in the spec by https://github.com/w3c/media-source/pull/92,
+                // however, few browsers have support for setLiveSeekableRange()
+                // https://developer.mozilla.org/en-US/docs/Web/API/MediaSource/setLiveSeekableRange
+                //
+                // Until a time when the duration of the media source can be set to infinity, and a
+                // seekable range specified across browsers, the duration should be greater than or
+                // equal to the last possible seekable value.
+                // MediaSource duration starts as NaN
+                // It is possible (and probable) that this case will never be reached for many
+                // sources, since the MediaSource reports duration as the highest value without
+                // accounting for timestamp offset. For example, if the timestamp offset is -100 and
+                // we buffered times 0 to 100 with real times of 100 to 200, even though current
+                // time will be between 0 and 100, the native media source may report the duration
+                // as 200. However, since we report duration separate from the media source (as
+                // Infinity), and as long as the native media source duration value is greater than
+                // our reported seekable range, seeks will work as expected. The large number as
+                // duration for live is actually a strategy used by some players to work around the
+                // issue of live seekable ranges cited above.
+
+                if (isNaN(this.mediaSource.duration) || this.mediaSource.duration < seekable.end(seekable.length - 1)) {
+                    this.sourceUpdater_.setDuration(seekable.end(seekable.length - 1));
+                }
+                return;
+            }
+            const buffered = this.tech_.buffered();
+            let duration = Vhs$1.Playlist.duration(this.mainPlaylistLoader_.media());
+            if (buffered.length > 0) {
+                duration = Math.max(duration, buffered.end(buffered.length - 1));
+            }
+            if (this.mediaSource.duration !== duration) {
+                this.sourceUpdater_.setDuration(duration);
+            }
+        }
+        /**
+         * dispose of the PlaylistController and everything
+         * that it controls
+         */
+
+        dispose() {
+            this.trigger('dispose');
+            this.decrypter_.terminate();
+            this.mainPlaylistLoader_.dispose();
+            this.mainSegmentLoader_.dispose();
+            if (this.loadOnPlay_) {
+                this.tech_.off('play', this.loadOnPlay_);
+            }
+            ['AUDIO', 'SUBTITLES'].forEach(type => {
+                const groups = this.mediaTypes_[type].groups;
+                for (const id in groups) {
+                    groups[id].forEach(group => {
+                        if (group.playlistLoader) {
+                            group.playlistLoader.dispose();
+                        }
+                    });
+                }
+            });
+            this.audioSegmentLoader_.dispose();
+            this.subtitleSegmentLoader_.dispose();
+            this.sourceUpdater_.dispose();
+            this.timelineChangeController_.dispose();
+            this.stopABRTimer_();
+            if (this.updateDuration_) {
+                this.mediaSource.removeEventListener('sourceopen', this.updateDuration_);
+            }
+            this.mediaSource.removeEventListener('durationchange', this.handleDurationChange_); // load the media source into the player
+
+            this.mediaSource.removeEventListener('sourceopen', this.handleSourceOpen_);
+            this.mediaSource.removeEventListener('sourceended', this.handleSourceEnded_);
+            this.off();
+        }
+        /**
+         * return the main playlist object if we have one
+         *
+         * @return {Object} the main playlist object that we parsed
+         */
+
+        main() {
+            return this.mainPlaylistLoader_.main;
+        }
+        /**
+         * return the currently selected playlist
+         *
+         * @return {Object} the currently selected playlist object that we parsed
+         */
+
+        media() {
+            // playlist loader will not return media if it has not been fully loaded
+            return this.mainPlaylistLoader_.media() || this.initialMedia_;
+        }
+        areMediaTypesKnown_() {
+            const usingAudioLoader = !!this.mediaTypes_.AUDIO.activePlaylistLoader;
+            const hasMainMediaInfo = !!this.mainSegmentLoader_.getCurrentMediaInfo_(); // if we are not using an audio loader, then we have audio media info
+            // otherwise check on the segment loader.
+
+            const hasAudioMediaInfo = !usingAudioLoader ? true : !!this.audioSegmentLoader_.getCurrentMediaInfo_(); // one or both loaders has not loaded sufficently to get codecs
+
+            if (!hasMainMediaInfo || !hasAudioMediaInfo) {
+                return false;
+            }
+            return true;
+        }
+        getCodecsOrExclude_() {
+            const media = {
+                main: this.mainSegmentLoader_.getCurrentMediaInfo_() || {},
+                audio: this.audioSegmentLoader_.getCurrentMediaInfo_() || {}
+            };
+            const playlist = this.mainSegmentLoader_.getPendingSegmentPlaylist() || this.media(); // set "main" media equal to video
+
+            media.video = media.main;
+            const playlistCodecs = codecsForPlaylist(this.main(), playlist);
+            const codecs = {};
+            const usingAudioLoader = !!this.mediaTypes_.AUDIO.activePlaylistLoader;
+            if (media.main.hasVideo) {
+                codecs.video = playlistCodecs.video || media.main.videoCodec || DEFAULT_VIDEO_CODEC;
+            }
+            if (media.main.isMuxed) {
+                codecs.video += `,${playlistCodecs.audio || media.main.audioCodec || DEFAULT_AUDIO_CODEC}`;
+            }
+            if (media.main.hasAudio && !media.main.isMuxed || media.audio.hasAudio || usingAudioLoader) {
+                codecs.audio = playlistCodecs.audio || media.main.audioCodec || media.audio.audioCodec || DEFAULT_AUDIO_CODEC; // set audio isFmp4 so we use the correct "supports" function below
+
+                media.audio.isFmp4 = media.main.hasAudio && !media.main.isMuxed ? media.main.isFmp4 : media.audio.isFmp4;
+            } // no codecs, no playback.
+
+            if (!codecs.audio && !codecs.video) {
+                this.excludePlaylist({
+                    playlistToExclude: playlist,
+                    error: {
+                        message: 'Could not determine codecs for playlist.'
+                    },
+                    playlistExclusionDuration: Infinity
+                });
+                return;
+            } // fmp4 relies on browser support, while ts relies on muxer support
+
+            const supportFunction = (isFmp4, codec) => isFmp4 ? browserSupportsCodec(codec) : muxerSupportsCodec(codec);
+            const unsupportedCodecs = {};
+            let unsupportedAudio;
+            ['video', 'audio'].forEach(function (type) {
+                if (codecs.hasOwnProperty(type) && !supportFunction(media[type].isFmp4, codecs[type])) {
+                    const supporter = media[type].isFmp4 ? 'browser' : 'muxer';
+                    unsupportedCodecs[supporter] = unsupportedCodecs[supporter] || [];
+                    unsupportedCodecs[supporter].push(codecs[type]);
+                    if (type === 'audio') {
+                        unsupportedAudio = supporter;
+                    }
+                }
+            });
+            if (usingAudioLoader && unsupportedAudio && playlist.attributes.AUDIO) {
+                const audioGroup = playlist.attributes.AUDIO;
+                this.main().playlists.forEach(variant => {
+                    const variantAudioGroup = variant.attributes && variant.attributes.AUDIO;
+                    if (variantAudioGroup === audioGroup && variant !== playlist) {
+                        variant.excludeUntil = Infinity;
+                    }
+                });
+                this.logger_(`excluding audio group ${audioGroup} as ${unsupportedAudio} does not support codec(s): "${codecs.audio}"`);
+            } // if we have any unsupported codecs exclude this playlist.
+
+            if (Object.keys(unsupportedCodecs).length) {
+                const message = Object.keys(unsupportedCodecs).reduce((acc, supporter) => {
+                    if (acc) {
+                        acc += ', ';
+                    }
+                    acc += `${supporter} does not support codec(s): "${unsupportedCodecs[supporter].join(',')}"`;
+                    return acc;
+                }, '') + '.';
+                this.excludePlaylist({
+                    playlistToExclude: playlist,
+                    error: {
+                        internal: true,
+                        message
+                    },
+                    playlistExclusionDuration: Infinity
+                });
+                return;
+            } // check if codec switching is happening
+
+            if (this.sourceUpdater_.hasCreatedSourceBuffers() && !this.sourceUpdater_.canChangeType()) {
+                const switchMessages = [];
+                ['video', 'audio'].forEach(type => {
+                    const newCodec = (parseCodecs(this.sourceUpdater_.codecs[type] || '')[0] || {}).type;
+                    const oldCodec = (parseCodecs(codecs[type] || '')[0] || {}).type;
+                    if (newCodec && oldCodec && newCodec.toLowerCase() !== oldCodec.toLowerCase()) {
+                        switchMessages.push(`"${this.sourceUpdater_.codecs[type]}" -> "${codecs[type]}"`);
+                    }
+                });
+                if (switchMessages.length) {
+                    this.excludePlaylist({
+                        playlistToExclude: playlist,
+                        error: {
+                            message: `Codec switching not supported: ${switchMessages.join(', ')}.`,
+                            internal: true
+                        },
+                        playlistExclusionDuration: Infinity
+                    });
+                    return;
+                }
+            } // TODO: when using the muxer shouldn't we just return
+            // the codecs that the muxer outputs?
+
+            return codecs;
+        }
+        /**
+         * Create source buffers and exlude any incompatible renditions.
+         *
+         * @private
+         */
+
+        tryToCreateSourceBuffers_() {
+            // media source is not ready yet or sourceBuffers are already
+            // created.
+            if (this.mediaSource.readyState !== 'open' || this.sourceUpdater_.hasCreatedSourceBuffers()) {
+                return;
+            }
+            if (!this.areMediaTypesKnown_()) {
+                return;
+            }
+            const codecs = this.getCodecsOrExclude_(); // no codecs means that the playlist was excluded
+
+            if (!codecs) {
+                return;
+            }
+            this.sourceUpdater_.createSourceBuffers(codecs);
+            const codecString = [codecs.video, codecs.audio].filter(Boolean).join(',');
+            this.excludeIncompatibleVariants_(codecString);
+        }
+        /**
+         * Excludes playlists with codecs that are unsupported by the muxer and browser.
+         */
+
+        excludeUnsupportedVariants_() {
+            const playlists = this.main().playlists;
+            const ids = []; // TODO: why don't we have a property to loop through all
+            // playlist? Why did we ever mix indexes and keys?
+
+            Object.keys(playlists).forEach(key => {
+                const variant = playlists[key]; // check if we already processed this playlist.
+
+                if (ids.indexOf(variant.id) !== -1) {
+                    return;
+                }
+                ids.push(variant.id);
+                const codecs = codecsForPlaylist(this.main, variant);
+                const unsupported = [];
+                if (codecs.audio && !muxerSupportsCodec(codecs.audio) && !browserSupportsCodec(codecs.audio)) {
+                    unsupported.push(`audio codec ${codecs.audio}`);
+                }
+                if (codecs.video && !muxerSupportsCodec(codecs.video) && !browserSupportsCodec(codecs.video)) {
+                    unsupported.push(`video codec ${codecs.video}`);
+                }
+                if (codecs.text && codecs.text === 'stpp.ttml.im1t') {
+                    unsupported.push(`text codec ${codecs.text}`);
+                }
+                if (unsupported.length) {
+                    variant.excludeUntil = Infinity;
+                    this.logger_(`excluding ${variant.id} for unsupported: ${unsupported.join(', ')}`);
+                }
+            });
+        }
+        /**
+         * Exclude playlists that are known to be codec or
+         * stream-incompatible with the SourceBuffer configuration. For
+         * instance, Media Source Extensions would cause the video element to
+         * stall waiting for video data if you switched from a variant with
+         * video and audio to an audio-only one.
+         *
+         * @param {Object} media a media playlist compatible with the current
+         * set of SourceBuffers. Variants in the current main playlist that
+         * do not appear to have compatible codec or stream configurations
+         * will be excluded from the default playlist selection algorithm
+         * indefinitely.
+         * @private
+         */
+
+        excludeIncompatibleVariants_(codecString) {
+            const ids = [];
+            const playlists = this.main().playlists;
+            const codecs = unwrapCodecList(parseCodecs(codecString));
+            const codecCount_ = codecCount(codecs);
+            const videoDetails = codecs.video && parseCodecs(codecs.video)[0] || null;
+            const audioDetails = codecs.audio && parseCodecs(codecs.audio)[0] || null;
+            Object.keys(playlists).forEach(key => {
+                const variant = playlists[key]; // check if we already processed this playlist.
+                // or it if it is already excluded forever.
+
+                if (ids.indexOf(variant.id) !== -1 || variant.excludeUntil === Infinity) {
+                    return;
+                }
+                ids.push(variant.id);
+                const exclusionReasons = []; // get codecs from the playlist for this variant
+
+                const variantCodecs = codecsForPlaylist(this.mainPlaylistLoader_.main, variant);
+                const variantCodecCount = codecCount(variantCodecs); // if no codecs are listed, we cannot determine that this
+                // variant is incompatible. Wait for mux.js to probe
+
+                if (!variantCodecs.audio && !variantCodecs.video) {
+                    return;
+                } // TODO: we can support this by removing the
+                // old media source and creating a new one, but it will take some work.
+                // The number of streams cannot change
+
+                if (variantCodecCount !== codecCount_) {
+                    exclusionReasons.push(`codec count "${variantCodecCount}" !== "${codecCount_}"`);
+                } // only exclude playlists by codec change, if codecs cannot switch
+                // during playback.
+
+                if (!this.sourceUpdater_.canChangeType()) {
+                    const variantVideoDetails = variantCodecs.video && parseCodecs(variantCodecs.video)[0] || null;
+                    const variantAudioDetails = variantCodecs.audio && parseCodecs(variantCodecs.audio)[0] || null; // the video codec cannot change
+
+                    if (variantVideoDetails && videoDetails && variantVideoDetails.type.toLowerCase() !== videoDetails.type.toLowerCase()) {
+                        exclusionReasons.push(`video codec "${variantVideoDetails.type}" !== "${videoDetails.type}"`);
+                    } // the audio codec cannot change
+
+                    if (variantAudioDetails && audioDetails && variantAudioDetails.type.toLowerCase() !== audioDetails.type.toLowerCase()) {
+                        exclusionReasons.push(`audio codec "${variantAudioDetails.type}" !== "${audioDetails.type}"`);
+                    }
+                }
+                if (exclusionReasons.length) {
+                    variant.excludeUntil = Infinity;
+                    this.logger_(`excluding ${variant.id}: ${exclusionReasons.join(' && ')}`);
+                }
+            });
+        }
+        updateAdCues_(media) {
+            let offset = 0;
+            const seekable = this.seekable();
+            if (seekable.length) {
+                offset = seekable.start(0);
+            }
+            updateAdCues(media, this.cueTagsTrack_, offset);
+        }
+        /**
+         * Calculates the desired forward buffer length based on current time
+         *
+         * @return {number} Desired forward buffer length in seconds
+         */
+
+        goalBufferLength() {
+            const currentTime = this.tech_.currentTime();
+            const initial = Config.GOAL_BUFFER_LENGTH;
+            const rate = Config.GOAL_BUFFER_LENGTH_RATE;
+            const max = Math.max(initial, Config.MAX_GOAL_BUFFER_LENGTH);
+            return Math.min(initial + currentTime * rate, max);
+        }
+        /**
+         * Calculates the desired buffer low water line based on current time
+         *
+         * @return {number} Desired buffer low water line in seconds
+         */
+
+        bufferLowWaterLine() {
+            const currentTime = this.tech_.currentTime();
+            const initial = Config.BUFFER_LOW_WATER_LINE;
+            const rate = Config.BUFFER_LOW_WATER_LINE_RATE;
+            const max = Math.max(initial, Config.MAX_BUFFER_LOW_WATER_LINE);
+            const newMax = Math.max(initial, Config.EXPERIMENTAL_MAX_BUFFER_LOW_WATER_LINE);
+            return Math.min(initial + currentTime * rate, this.bufferBasedABR ? newMax : max);
+        }
+        bufferHighWaterLine() {
+            return Config.BUFFER_HIGH_WATER_LINE;
+        }
+    }
+
+    /**
+     * Returns a function that acts as the Enable/disable playlist function.
+     *
+     * @param {PlaylistLoader} loader - The main playlist loader
+     * @param {string} playlistID - id of the playlist
+     * @param {Function} changePlaylistFn - A function to be called after a
+     * playlist's enabled-state has been changed. Will NOT be called if a
+     * playlist's enabled-state is unchanged
+     * @param {boolean=} enable - Value to set the playlist enabled-state to
+     * or if undefined returns the current enabled-state for the playlist
+     * @return {Function} Function for setting/getting enabled
+     */
+
+    const enableFunction = (loader, playlistID, changePlaylistFn) => enable => {
+        const playlist = loader.main.playlists[playlistID];
+        const incompatible = isIncompatible(playlist);
+        const currentlyEnabled = isEnabled(playlist);
+        if (typeof enable === 'undefined') {
+            return currentlyEnabled;
+        }
+        if (enable) {
+            delete playlist.disabled;
+        } else {
+            playlist.disabled = true;
+        }
+        if (enable !== currentlyEnabled && !incompatible) {
+            // Ensure the outside world knows about our changes
+            changePlaylistFn();
+            if (enable) {
+                loader.trigger('renditionenabled');
+            } else {
+                loader.trigger('renditiondisabled');
+            }
+        }
+        return enable;
+    };
+    /**
+     * The representation object encapsulates the publicly visible information
+     * in a media playlist along with a setter/getter-type function (enabled)
+     * for changing the enabled-state of a particular playlist entry
+     *
+     * @class Representation
+     */
+
+    class Representation {
+        constructor(vhsHandler, playlist, id) {
+            const {
+                playlistController_: pc
+            } = vhsHandler;
+            const qualityChangeFunction = pc.fastQualityChange_.bind(pc); // some playlist attributes are optional
+
+            if (playlist.attributes) {
+                const resolution = playlist.attributes.RESOLUTION;
+                this.width = resolution && resolution.width;
+                this.height = resolution && resolution.height;
+                this.bandwidth = playlist.attributes.BANDWIDTH;
+                this.frameRate = playlist.attributes['FRAME-RATE'];
+            }
+            this.codecs = codecsForPlaylist(pc.main(), playlist);
+            this.playlist = playlist; // The id is simply the ordinality of the media playlist
+            // within the main playlist
+
+            this.id = id; // Partially-apply the enableFunction to create a playlist-
+            // specific variant
+
+            this.enabled = enableFunction(vhsHandler.playlists, playlist.id, qualityChangeFunction);
+        }
+    }
+    /**
+     * A mixin function that adds the `representations` api to an instance
+     * of the VhsHandler class
+     *
+     * @param {VhsHandler} vhsHandler - An instance of VhsHandler to add the
+     * representation API into
+     */
+
+    const renditionSelectionMixin = function (vhsHandler) {
+        // Add a single API-specific function to the VhsHandler instance
+        vhsHandler.representations = () => {
+            const main = vhsHandler.playlistController_.main();
+            const playlists = isAudioOnly(main) ? vhsHandler.playlistController_.getAudioTrackPlaylists_() : main.playlists;
+            if (!playlists) {
+                return [];
+            }
+            return playlists.filter(media => !isIncompatible(media)).map((e, i) => new Representation(vhsHandler, e, e.id));
+        };
+    };
+
+    /**
+     * @file playback-watcher.js
+     *
+     * Playback starts, and now my watch begins. It shall not end until my death. I shall
+     * take no wait, hold no uncleared timeouts, father no bad seeks. I shall wear no crowns
+     * and win no glory. I shall live and die at my post. I am the corrector of the underflow.
+     * I am the watcher of gaps. I am the shield that guards the realms of seekable. I pledge
+     * my life and honor to the Playback Watch, for this Player and all the Players to come.
+     */
+
+    const timerCancelEvents = ['seeking', 'seeked', 'pause', 'playing', 'error'];
+    /**
+     * @class PlaybackWatcher
+     */
+
+    class PlaybackWatcher {
+        /**
+         * Represents an PlaybackWatcher object.
+         *
+         * @class
+         * @param {Object} options an object that includes the tech and settings
+         */
+        constructor(options) {
+            this.playlistController_ = options.playlistController;
+            this.tech_ = options.tech;
+            this.seekable = options.seekable;
+            this.allowSeeksWithinUnsafeLiveWindow = options.allowSeeksWithinUnsafeLiveWindow;
+            this.liveRangeSafeTimeDelta = options.liveRangeSafeTimeDelta;
+            this.media = options.media;
+            this.consecutiveUpdates = 0;
+            this.lastRecordedTime = null;
+            this.checkCurrentTimeTimeout_ = null;
+            this.logger_ = logger('PlaybackWatcher');
+            this.logger_('initialize');
+            const playHandler = () => this.monitorCurrentTime_();
+            const canPlayHandler = () => this.monitorCurrentTime_();
+            const waitingHandler = () => this.techWaiting_();
+            const cancelTimerHandler = () => this.resetTimeUpdate_();
+            const pc = this.playlistController_;
+            const loaderTypes = ['main', 'subtitle', 'audio'];
+            const loaderChecks = {};
+            loaderTypes.forEach(type => {
+                loaderChecks[type] = {
+                    reset: () => this.resetSegmentDownloads_(type),
+                    updateend: () => this.checkSegmentDownloads_(type)
+                };
+                pc[`${type}SegmentLoader_`].on('appendsdone', loaderChecks[type].updateend); // If a rendition switch happens during a playback stall where the buffer
+                // isn't changing we want to reset. We cannot assume that the new rendition
+                // will also be stalled, until after new appends.
+
+                pc[`${type}SegmentLoader_`].on('playlistupdate', loaderChecks[type].reset); // Playback stalls should not be detected right after seeking.
+                // This prevents one segment playlists (single vtt or single segment content)
+                // from being detected as stalling. As the buffer will not change in those cases, since
+                // the buffer is the entire video duration.
+
+                this.tech_.on(['seeked', 'seeking'], loaderChecks[type].reset);
+            });
+            /**
+             * We check if a seek was into a gap through the following steps:
+             * 1. We get a seeking event and we do not get a seeked event. This means that
+             *    a seek was attempted but not completed.
+             * 2. We run `fixesBadSeeks_` on segment loader appends. This means that we already
+             *    removed everything from our buffer and appended a segment, and should be ready
+             *    to check for gaps.
+             */
+
+            const setSeekingHandlers = fn => {
+                ['main', 'audio'].forEach(type => {
+                    pc[`${type}SegmentLoader_`][fn]('appended', this.seekingAppendCheck_);
+                });
+            };
+            this.seekingAppendCheck_ = () => {
+                if (this.fixesBadSeeks_()) {
+                    this.consecutiveUpdates = 0;
+                    this.lastRecordedTime = this.tech_.currentTime();
+                    setSeekingHandlers('off');
+                }
+            };
+            this.clearSeekingAppendCheck_ = () => setSeekingHandlers('off');
+            this.watchForBadSeeking_ = () => {
+                this.clearSeekingAppendCheck_();
+                setSeekingHandlers('on');
+            };
+            this.tech_.on('seeked', this.clearSeekingAppendCheck_);
+            this.tech_.on('seeking', this.watchForBadSeeking_);
+            this.tech_.on('waiting', waitingHandler);
+            this.tech_.on(timerCancelEvents, cancelTimerHandler);
+            this.tech_.on('canplay', canPlayHandler);
+            /*
         An edge case exists that results in gaps not being skipped when they exist at the beginning of a stream. This case
         is surfaced in one of two ways:
          1)  The `waiting` event is fired before the player has buffered content, making it impossible
@@ -64828,2017 +58733,1611 @@
             even if the player is in a playing state
       */
 
-      this.tech_.one('play', playHandler); // Define the dispose function to clean up our events
+            this.tech_.one('play', playHandler); // Define the dispose function to clean up our events
 
-      this.dispose = function () {
-        _this.clearSeekingAppendCheck_();
-
-        _this.logger_('dispose');
-
-        _this.tech_.off('waiting', waitingHandler);
-
-        _this.tech_.off(timerCancelEvents, cancelTimerHandler);
-
-        _this.tech_.off('canplay', canPlayHandler);
-
-        _this.tech_.off('play', playHandler);
-
-        _this.tech_.off('seeking', _this.watchForBadSeeking_);
-
-        _this.tech_.off('seeked', _this.clearSeekingAppendCheck_);
-
-        loaderTypes.forEach(function (type) {
-          mpc[type + "SegmentLoader_"].off('appendsdone', loaderChecks[type].updateend);
-          mpc[type + "SegmentLoader_"].off('playlistupdate', loaderChecks[type].reset);
-
-          _this.tech_.off(['seeked', 'seeking'], loaderChecks[type].reset);
-        });
-
-        if (_this.checkCurrentTimeTimeout_) {
-          window.clearTimeout(_this.checkCurrentTimeTimeout_);
+            this.dispose = () => {
+                this.clearSeekingAppendCheck_();
+                this.logger_('dispose');
+                this.tech_.off('waiting', waitingHandler);
+                this.tech_.off(timerCancelEvents, cancelTimerHandler);
+                this.tech_.off('canplay', canPlayHandler);
+                this.tech_.off('play', playHandler);
+                this.tech_.off('seeking', this.watchForBadSeeking_);
+                this.tech_.off('seeked', this.clearSeekingAppendCheck_);
+                loaderTypes.forEach(type => {
+                    pc[`${type}SegmentLoader_`].off('appendsdone', loaderChecks[type].updateend);
+                    pc[`${type}SegmentLoader_`].off('playlistupdate', loaderChecks[type].reset);
+                    this.tech_.off(['seeked', 'seeking'], loaderChecks[type].reset);
+                });
+                if (this.checkCurrentTimeTimeout_) {
+                    window.clearTimeout(this.checkCurrentTimeTimeout_);
+                }
+                this.resetTimeUpdate_();
+            };
         }
+        /**
+         * Periodically check current time to see if playback stopped
+         *
+         * @private
+         */
 
-        _this.cancelTimer_();
-      };
-    }
-    /**
-     * Periodically check current time to see if playback stopped
-     *
-     * @private
-     */
+        monitorCurrentTime_() {
+            this.checkCurrentTime_();
+            if (this.checkCurrentTimeTimeout_) {
+                window.clearTimeout(this.checkCurrentTimeTimeout_);
+            } // 42 = 24 fps // 250 is what Webkit uses // FF uses 15
 
-
-    var _proto = PlaybackWatcher.prototype;
-
-    _proto.monitorCurrentTime_ = function monitorCurrentTime_() {
-      this.checkCurrentTime_();
-
-      if (this.checkCurrentTimeTimeout_) {
-        window.clearTimeout(this.checkCurrentTimeTimeout_);
-      } // 42 = 24 fps // 250 is what Webkit uses // FF uses 15
-
-
-      this.checkCurrentTimeTimeout_ = window.setTimeout(this.monitorCurrentTime_.bind(this), 250);
-    }
-    /**
-     * Reset stalled download stats for a specific type of loader
-     *
-     * @param {string} type
-     *        The segment loader type to check.
-     *
-     * @listens SegmentLoader#playlistupdate
-     * @listens Tech#seeking
-     * @listens Tech#seeked
-     */
-    ;
-
-    _proto.resetSegmentDownloads_ = function resetSegmentDownloads_(type) {
-      var loader = this.masterPlaylistController_[type + "SegmentLoader_"];
-
-      if (this[type + "StalledDownloads_"] > 0) {
-        this.logger_("resetting possible stalled download count for " + type + " loader");
-      }
-
-      this[type + "StalledDownloads_"] = 0;
-      this[type + "Buffered_"] = loader.buffered_();
-    }
-    /**
-     * Checks on every segment `appendsdone` to see
-     * if segment appends are making progress. If they are not
-     * and we are still downloading bytes. We blacklist the playlist.
-     *
-     * @param {string} type
-     *        The segment loader type to check.
-     *
-     * @listens SegmentLoader#appendsdone
-     */
-    ;
-
-    _proto.checkSegmentDownloads_ = function checkSegmentDownloads_(type) {
-      var mpc = this.masterPlaylistController_;
-      var loader = mpc[type + "SegmentLoader_"];
-      var buffered = loader.buffered_();
-      var isBufferedDifferent = isRangeDifferent(this[type + "Buffered_"], buffered);
-      this[type + "Buffered_"] = buffered; // if another watcher is going to fix the issue or
-      // the buffered value for this loader changed
-      // appends are working
-
-      if (isBufferedDifferent) {
-        this.resetSegmentDownloads_(type);
-        return;
-      }
-
-      this[type + "StalledDownloads_"]++;
-      this.logger_("found #" + this[type + "StalledDownloads_"] + " " + type + " appends that did not increase buffer (possible stalled download)", {
-        playlistId: loader.playlist_ && loader.playlist_.id,
-        buffered: timeRangesToArray(buffered)
-      }); // after 10 possibly stalled appends with no reset, exclude
-
-      if (this[type + "StalledDownloads_"] < 10) {
-        return;
-      }
-
-      this.logger_(type + " loader stalled download exclusion");
-      this.resetSegmentDownloads_(type);
-      this.tech_.trigger({
-        type: 'usage',
-        name: "vhs-" + type + "-download-exclusion"
-      });
-
-      if (type === 'subtitle') {
-        return;
-      } // TODO: should we exclude audio tracks rather than main tracks
-      // when type is audio?
-
-
-      mpc.blacklistCurrentPlaylist({
-        message: "Excessive " + type + " segment downloading detected."
-      }, Infinity);
-    }
-    /**
-     * The purpose of this function is to emulate the "waiting" event on
-     * browsers that do not emit it when they are waiting for more
-     * data to continue playback
-     *
-     * @private
-     */
-    ;
-
-    _proto.checkCurrentTime_ = function checkCurrentTime_() {
-      if (this.tech_.paused() || this.tech_.seeking()) {
-        return;
-      }
-
-      var currentTime = this.tech_.currentTime();
-      var buffered = this.tech_.buffered();
-
-      if (this.lastRecordedTime === currentTime && (!buffered.length || currentTime + SAFE_TIME_DELTA >= buffered.end(buffered.length - 1))) {
-        // If current time is at the end of the final buffered region, then any playback
-        // stall is most likely caused by buffering in a low bandwidth environment. The tech
-        // should fire a `waiting` event in this scenario, but due to browser and tech
-        // inconsistencies. Calling `techWaiting_` here allows us to simulate
-        // responding to a native `waiting` event when the tech fails to emit one.
-        return this.techWaiting_();
-      }
-
-      if (this.consecutiveUpdates >= 5 && currentTime === this.lastRecordedTime) {
-        this.consecutiveUpdates++;
-        this.waiting_();
-      } else if (currentTime === this.lastRecordedTime) {
-        this.consecutiveUpdates++;
-      } else {
-        this.consecutiveUpdates = 0;
-        this.lastRecordedTime = currentTime;
-      }
-    }
-    /**
-     * Cancels any pending timers and resets the 'timeupdate' mechanism
-     * designed to detect that we are stalled
-     *
-     * @private
-     */
-    ;
-
-    _proto.cancelTimer_ = function cancelTimer_() {
-      this.consecutiveUpdates = 0;
-
-      if (this.timer_) {
-        this.logger_('cancelTimer_');
-        clearTimeout(this.timer_);
-      }
-
-      this.timer_ = null;
-    }
-    /**
-     * Fixes situations where there's a bad seek
-     *
-     * @return {boolean} whether an action was taken to fix the seek
-     * @private
-     */
-    ;
-
-    _proto.fixesBadSeeks_ = function fixesBadSeeks_() {
-      var seeking = this.tech_.seeking();
-
-      if (!seeking) {
-        return false;
-      } // TODO: It's possible that these seekable checks should be moved out of this function
-      // and into a function that runs on seekablechange. It's also possible that we only need
-      // afterSeekableWindow as the buffered check at the bottom is good enough to handle before
-      // seekable range.
-
-
-      var seekable = this.seekable();
-      var currentTime = this.tech_.currentTime();
-      var isAfterSeekableRange = this.afterSeekableWindow_(seekable, currentTime, this.media(), this.allowSeeksWithinUnsafeLiveWindow);
-      var seekTo;
-
-      if (isAfterSeekableRange) {
-        var seekableEnd = seekable.end(seekable.length - 1); // sync to live point (if VOD, our seekable was updated and we're simply adjusting)
-
-        seekTo = seekableEnd;
-      }
-
-      if (this.beforeSeekableWindow_(seekable, currentTime)) {
-        var seekableStart = seekable.start(0); // sync to the beginning of the live window
-        // provide a buffer of .1 seconds to handle rounding/imprecise numbers
-
-        seekTo = seekableStart + ( // if the playlist is too short and the seekable range is an exact time (can
-        // happen in live with a 3 segment playlist), then don't use a time delta
-        seekableStart === seekable.end(0) ? 0 : SAFE_TIME_DELTA);
-      }
-
-      if (typeof seekTo !== 'undefined') {
-        this.logger_("Trying to seek outside of seekable at time " + currentTime + " with " + ("seekable range " + printableRange(seekable) + ". Seeking to ") + (seekTo + "."));
-        this.tech_.setCurrentTime(seekTo);
-        return true;
-      }
-
-      var sourceUpdater = this.masterPlaylistController_.sourceUpdater_;
-      var buffered = this.tech_.buffered();
-      var audioBuffered = sourceUpdater.audioBuffer ? sourceUpdater.audioBuffered() : null;
-      var videoBuffered = sourceUpdater.videoBuffer ? sourceUpdater.videoBuffered() : null;
-      var media = this.media(); // verify that at least two segment durations or one part duration have been
-      // appended before checking for a gap.
-
-      var minAppendedDuration = media.partTargetDuration ? media.partTargetDuration : (media.targetDuration - TIME_FUDGE_FACTOR) * 2; // verify that at least two segment durations have been
-      // appended before checking for a gap.
-
-      var bufferedToCheck = [audioBuffered, videoBuffered];
-
-      for (var i = 0; i < bufferedToCheck.length; i++) {
-        // skip null buffered
-        if (!bufferedToCheck[i]) {
-          continue;
+            this.checkCurrentTimeTimeout_ = window.setTimeout(this.monitorCurrentTime_.bind(this), 250);
         }
+        /**
+         * Reset stalled download stats for a specific type of loader
+         *
+         * @param {string} type
+         *        The segment loader type to check.
+         *
+         * @listens SegmentLoader#playlistupdate
+         * @listens Tech#seeking
+         * @listens Tech#seeked
+         */
 
-        var timeAhead = timeAheadOf(bufferedToCheck[i], currentTime); // if we are less than two video/audio segment durations or one part
-        // duration behind we haven't appended enough to call this a bad seek.
-
-        if (timeAhead < minAppendedDuration) {
-          return false;
+        resetSegmentDownloads_(type) {
+            const loader = this.playlistController_[`${type}SegmentLoader_`];
+            if (this[`${type}StalledDownloads_`] > 0) {
+                this.logger_(`resetting possible stalled download count for ${type} loader`);
+            }
+            this[`${type}StalledDownloads_`] = 0;
+            this[`${type}Buffered_`] = loader.buffered_();
         }
-      }
+        /**
+         * Checks on every segment `appendsdone` to see
+         * if segment appends are making progress. If they are not
+         * and we are still downloading bytes. We exclude the playlist.
+         *
+         * @param {string} type
+         *        The segment loader type to check.
+         *
+         * @listens SegmentLoader#appendsdone
+         */
 
-      var nextRange = findNextRange(buffered, currentTime); // we have appended enough content, but we don't have anything buffered
-      // to seek over the gap
+        checkSegmentDownloads_(type) {
+            const pc = this.playlistController_;
+            const loader = pc[`${type}SegmentLoader_`];
+            const buffered = loader.buffered_();
+            const isBufferedDifferent = isRangeDifferent(this[`${type}Buffered_`], buffered);
+            this[`${type}Buffered_`] = buffered; // if another watcher is going to fix the issue or
+            // the buffered value for this loader changed
+            // appends are working
 
-      if (nextRange.length === 0) {
-        return false;
-      }
+            if (isBufferedDifferent) {
+                this.resetSegmentDownloads_(type);
+                return;
+            }
+            this[`${type}StalledDownloads_`]++;
+            this.logger_(`found #${this[`${type}StalledDownloads_`]} ${type} appends that did not increase buffer (possible stalled download)`, {
+                playlistId: loader.playlist_ && loader.playlist_.id,
+                buffered: timeRangesToArray(buffered)
+            }); // after 10 possibly stalled appends with no reset, exclude
 
-      seekTo = nextRange.start(0) + SAFE_TIME_DELTA;
-      this.logger_("Buffered region starts (" + nextRange.start(0) + ") " + (" just beyond seek point (" + currentTime + "). Seeking to " + seekTo + "."));
-      this.tech_.setCurrentTime(seekTo);
-      return true;
+            if (this[`${type}StalledDownloads_`] < 10) {
+                return;
+            }
+            this.logger_(`${type} loader stalled download exclusion`);
+            this.resetSegmentDownloads_(type);
+            this.tech_.trigger({
+                type: 'usage',
+                name: `vhs-${type}-download-exclusion`
+            });
+            if (type === 'subtitle') {
+                return;
+            } // TODO: should we exclude audio tracks rather than main tracks
+            // when type is audio?
+
+            pc.excludePlaylist({
+                error: {
+                    message: `Excessive ${type} segment downloading detected.`
+                },
+                playlistExclusionDuration: Infinity
+            });
+        }
+        /**
+         * The purpose of this function is to emulate the "waiting" event on
+         * browsers that do not emit it when they are waiting for more
+         * data to continue playback
+         *
+         * @private
+         */
+
+        checkCurrentTime_() {
+            if (this.tech_.paused() || this.tech_.seeking()) {
+                return;
+            }
+            const currentTime = this.tech_.currentTime();
+            const buffered = this.tech_.buffered();
+            if (this.lastRecordedTime === currentTime && (!buffered.length || currentTime + SAFE_TIME_DELTA >= buffered.end(buffered.length - 1))) {
+                // If current time is at the end of the final buffered region, then any playback
+                // stall is most likely caused by buffering in a low bandwidth environment. The tech
+                // should fire a `waiting` event in this scenario, but due to browser and tech
+                // inconsistencies. Calling `techWaiting_` here allows us to simulate
+                // responding to a native `waiting` event when the tech fails to emit one.
+                return this.techWaiting_();
+            }
+            if (this.consecutiveUpdates >= 5 && currentTime === this.lastRecordedTime) {
+                this.consecutiveUpdates++;
+                this.waiting_();
+            } else if (currentTime === this.lastRecordedTime) {
+                this.consecutiveUpdates++;
+            } else {
+                this.consecutiveUpdates = 0;
+                this.lastRecordedTime = currentTime;
+            }
+        }
+        /**
+         * Resets the 'timeupdate' mechanism designed to detect that we are stalled
+         *
+         * @private
+         */
+
+        resetTimeUpdate_() {
+            this.consecutiveUpdates = 0;
+        }
+        /**
+         * Fixes situations where there's a bad seek
+         *
+         * @return {boolean} whether an action was taken to fix the seek
+         * @private
+         */
+
+        fixesBadSeeks_() {
+            const seeking = this.tech_.seeking();
+            if (!seeking) {
+                return false;
+            } // TODO: It's possible that these seekable checks should be moved out of this function
+            // and into a function that runs on seekablechange. It's also possible that we only need
+            // afterSeekableWindow as the buffered check at the bottom is good enough to handle before
+            // seekable range.
+
+            const seekable = this.seekable();
+            const currentTime = this.tech_.currentTime();
+            const isAfterSeekableRange = this.afterSeekableWindow_(seekable, currentTime, this.media(), this.allowSeeksWithinUnsafeLiveWindow);
+            let seekTo;
+            if (isAfterSeekableRange) {
+                const seekableEnd = seekable.end(seekable.length - 1); // sync to live point (if VOD, our seekable was updated and we're simply adjusting)
+
+                seekTo = seekableEnd;
+            }
+            if (this.beforeSeekableWindow_(seekable, currentTime)) {
+                const seekableStart = seekable.start(0); // sync to the beginning of the live window
+                // provide a buffer of .1 seconds to handle rounding/imprecise numbers
+
+                seekTo = seekableStart + (
+                    // if the playlist is too short and the seekable range is an exact time (can
+                    // happen in live with a 3 segment playlist), then don't use a time delta
+                    seekableStart === seekable.end(0) ? 0 : SAFE_TIME_DELTA);
+            }
+            if (typeof seekTo !== 'undefined') {
+                this.logger_(`Trying to seek outside of seekable at time ${currentTime} with ` + `seekable range ${printableRange(seekable)}. Seeking to ` + `${seekTo}.`);
+                this.tech_.setCurrentTime(seekTo);
+                return true;
+            }
+            const sourceUpdater = this.playlistController_.sourceUpdater_;
+            const buffered = this.tech_.buffered();
+            const audioBuffered = sourceUpdater.audioBuffer ? sourceUpdater.audioBuffered() : null;
+            const videoBuffered = sourceUpdater.videoBuffer ? sourceUpdater.videoBuffered() : null;
+            const media = this.media(); // verify that at least two segment durations or one part duration have been
+            // appended before checking for a gap.
+
+            const minAppendedDuration = media.partTargetDuration ? media.partTargetDuration : (media.targetDuration - TIME_FUDGE_FACTOR) * 2; // verify that at least two segment durations have been
+            // appended before checking for a gap.
+
+            const bufferedToCheck = [audioBuffered, videoBuffered];
+            for (let i = 0; i < bufferedToCheck.length; i++) {
+                // skip null buffered
+                if (!bufferedToCheck[i]) {
+                    continue;
+                }
+                const timeAhead = timeAheadOf(bufferedToCheck[i], currentTime); // if we are less than two video/audio segment durations or one part
+                // duration behind we haven't appended enough to call this a bad seek.
+
+                if (timeAhead < minAppendedDuration) {
+                    return false;
+                }
+            }
+            const nextRange = findNextRange(buffered, currentTime); // we have appended enough content, but we don't have anything buffered
+            // to seek over the gap
+
+            if (nextRange.length === 0) {
+                return false;
+            }
+            seekTo = nextRange.start(0) + SAFE_TIME_DELTA;
+            this.logger_(`Buffered region starts (${nextRange.start(0)}) ` + ` just beyond seek point (${currentTime}). Seeking to ${seekTo}.`);
+            this.tech_.setCurrentTime(seekTo);
+            return true;
+        }
+        /**
+         * Handler for situations when we determine the player is waiting.
+         *
+         * @private
+         */
+
+        waiting_() {
+            if (this.techWaiting_()) {
+                return;
+            } // All tech waiting checks failed. Use last resort correction
+
+            const currentTime = this.tech_.currentTime();
+            const buffered = this.tech_.buffered();
+            const currentRange = findRange(buffered, currentTime); // Sometimes the player can stall for unknown reasons within a contiguous buffered
+            // region with no indication that anything is amiss (seen in Firefox). Seeking to
+            // currentTime is usually enough to kickstart the player. This checks that the player
+            // is currently within a buffered region before attempting a corrective seek.
+            // Chrome does not appear to continue `timeupdate` events after a `waiting` event
+            // until there is ~ 3 seconds of forward buffer available. PlaybackWatcher should also
+            // make sure there is ~3 seconds of forward buffer before taking any corrective action
+            // to avoid triggering an `unknownwaiting` event when the network is slow.
+
+            if (currentRange.length && currentTime + 3 <= currentRange.end(0)) {
+                this.resetTimeUpdate_();
+                this.tech_.setCurrentTime(currentTime);
+                this.logger_(`Stopped at ${currentTime} while inside a buffered region ` + `[${currentRange.start(0)} -> ${currentRange.end(0)}]. Attempting to resume ` + 'playback by seeking to the current time.'); // unknown waiting corrections may be useful for monitoring QoS
+
+                this.tech_.trigger({
+                    type: 'usage',
+                    name: 'vhs-unknown-waiting'
+                });
+                return;
+            }
+        }
+        /**
+         * Handler for situations when the tech fires a `waiting` event
+         *
+         * @return {boolean}
+         *         True if an action (or none) was needed to correct the waiting. False if no
+         *         checks passed
+         * @private
+         */
+
+        techWaiting_() {
+            const seekable = this.seekable();
+            const currentTime = this.tech_.currentTime();
+            if (this.tech_.seeking()) {
+                // Tech is seeking or already waiting on another action, no action needed
+                return true;
+            }
+            if (this.beforeSeekableWindow_(seekable, currentTime)) {
+                const livePoint = seekable.end(seekable.length - 1);
+                this.logger_(`Fell out of live window at time ${currentTime}. Seeking to ` + `live point (seekable end) ${livePoint}`);
+                this.resetTimeUpdate_();
+                this.tech_.setCurrentTime(livePoint); // live window resyncs may be useful for monitoring QoS
+
+                this.tech_.trigger({
+                    type: 'usage',
+                    name: 'vhs-live-resync'
+                });
+                return true;
+            }
+            const sourceUpdater = this.tech_.vhs.playlistController_.sourceUpdater_;
+            const buffered = this.tech_.buffered();
+            const videoUnderflow = this.videoUnderflow_({
+                audioBuffered: sourceUpdater.audioBuffered(),
+                videoBuffered: sourceUpdater.videoBuffered(),
+                currentTime
+            });
+            if (videoUnderflow) {
+                // Even though the video underflowed and was stuck in a gap, the audio overplayed
+                // the gap, leading currentTime into a buffered range. Seeking to currentTime
+                // allows the video to catch up to the audio position without losing any audio
+                // (only suffering ~3 seconds of frozen video and a pause in audio playback).
+                this.resetTimeUpdate_();
+                this.tech_.setCurrentTime(currentTime); // video underflow may be useful for monitoring QoS
+
+                this.tech_.trigger({
+                    type: 'usage',
+                    name: 'vhs-video-underflow'
+                });
+                return true;
+            }
+            const nextRange = findNextRange(buffered, currentTime); // check for gap
+
+            if (nextRange.length > 0) {
+                this.logger_(`Stopped at ${currentTime} and seeking to ${nextRange.start(0)}`);
+                this.resetTimeUpdate_();
+                this.skipTheGap_(currentTime);
+                return true;
+            } // All checks failed. Returning false to indicate failure to correct waiting
+
+            return false;
+        }
+        afterSeekableWindow_(seekable, currentTime, playlist, allowSeeksWithinUnsafeLiveWindow = false) {
+            if (!seekable.length) {
+                // we can't make a solid case if there's no seekable, default to false
+                return false;
+            }
+            let allowedEnd = seekable.end(seekable.length - 1) + SAFE_TIME_DELTA;
+            const isLive = !playlist.endList;
+            if (isLive && allowSeeksWithinUnsafeLiveWindow) {
+                allowedEnd = seekable.end(seekable.length - 1) + playlist.targetDuration * 3;
+            }
+            if (currentTime > allowedEnd) {
+                return true;
+            }
+            return false;
+        }
+        beforeSeekableWindow_(seekable, currentTime) {
+            if (seekable.length &&
+                // can't fall before 0 and 0 seekable start identifies VOD stream
+                seekable.start(0) > 0 && currentTime < seekable.start(0) - this.liveRangeSafeTimeDelta) {
+                return true;
+            }
+            return false;
+        }
+        videoUnderflow_({
+                            videoBuffered,
+                            audioBuffered,
+                            currentTime
+                        }) {
+            // audio only content will not have video underflow :)
+            if (!videoBuffered) {
+                return;
+            }
+            let gap; // find a gap in demuxed content.
+
+            if (videoBuffered.length && audioBuffered.length) {
+                // in Chrome audio will continue to play for ~3s when we run out of video
+                // so we have to check that the video buffer did have some buffer in the
+                // past.
+                const lastVideoRange = findRange(videoBuffered, currentTime - 3);
+                const videoRange = findRange(videoBuffered, currentTime);
+                const audioRange = findRange(audioBuffered, currentTime);
+                if (audioRange.length && !videoRange.length && lastVideoRange.length) {
+                    gap = {
+                        start: lastVideoRange.end(0),
+                        end: audioRange.end(0)
+                    };
+                } // find a gap in muxed content.
+            } else {
+                const nextRange = findNextRange(videoBuffered, currentTime); // Even if there is no available next range, there is still a possibility we are
+                // stuck in a gap due to video underflow.
+
+                if (!nextRange.length) {
+                    gap = this.gapFromVideoUnderflow_(videoBuffered, currentTime);
+                }
+            }
+            if (gap) {
+                this.logger_(`Encountered a gap in video from ${gap.start} to ${gap.end}. ` + `Seeking to current time ${currentTime}`);
+                return true;
+            }
+            return false;
+        }
+        /**
+         * Timer callback. If playback still has not proceeded, then we seek
+         * to the start of the next buffered region.
+         *
+         * @private
+         */
+
+        skipTheGap_(scheduledCurrentTime) {
+            const buffered = this.tech_.buffered();
+            const currentTime = this.tech_.currentTime();
+            const nextRange = findNextRange(buffered, currentTime);
+            this.resetTimeUpdate_();
+            if (nextRange.length === 0 || currentTime !== scheduledCurrentTime) {
+                return;
+            }
+            this.logger_('skipTheGap_:', 'currentTime:', currentTime, 'scheduled currentTime:', scheduledCurrentTime, 'nextRange start:', nextRange.start(0)); // only seek if we still have not played
+
+            this.tech_.setCurrentTime(nextRange.start(0) + TIME_FUDGE_FACTOR);
+            this.tech_.trigger({
+                type: 'usage',
+                name: 'vhs-gap-skip'
+            });
+        }
+        gapFromVideoUnderflow_(buffered, currentTime) {
+            // At least in Chrome, if there is a gap in the video buffer, the audio will continue
+            // playing for ~3 seconds after the video gap starts. This is done to account for
+            // video buffer underflow/underrun (note that this is not done when there is audio
+            // buffer underflow/underrun -- in that case the video will stop as soon as it
+            // encounters the gap, as audio stalls are more noticeable/jarring to a user than
+            // video stalls). The player's time will reflect the playthrough of audio, so the
+            // time will appear as if we are in a buffered region, even if we are stuck in a
+            // "gap."
+            //
+            // Example:
+            // video buffer:   0 => 10.1, 10.2 => 20
+            // audio buffer:   0 => 20
+            // overall buffer: 0 => 10.1, 10.2 => 20
+            // current time: 13
+            //
+            // Chrome's video froze at 10 seconds, where the video buffer encountered the gap,
+            // however, the audio continued playing until it reached ~3 seconds past the gap
+            // (13 seconds), at which point it stops as well. Since current time is past the
+            // gap, findNextRange will return no ranges.
+            //
+            // To check for this issue, we see if there is a gap that starts somewhere within
+            // a 3 second range (3 seconds +/- 1 second) back from our current time.
+            const gaps = findGaps(buffered);
+            for (let i = 0; i < gaps.length; i++) {
+                const start = gaps.start(i);
+                const end = gaps.end(i); // gap is starts no more than 4 seconds back
+
+                if (currentTime - start < 4 && currentTime - start > 2) {
+                    return {
+                        start,
+                        end
+                    };
+                }
+            }
+            return null;
+        }
     }
+    const defaultOptions = {
+        errorInterval: 30,
+        getSource(next) {
+            const tech = this.tech({
+                IWillNotUseThisInPlugins: true
+            });
+            const sourceObj = tech.currentSource_ || this.currentSource();
+            return next(sourceObj);
+        }
+    };
     /**
-     * Handler for situations when we determine the player is waiting.
+     * Main entry point for the plugin
      *
+     * @param {Player} player a reference to a videojs Player instance
+     * @param {Object} [options] an object with plugin options
      * @private
      */
-    ;
 
-    _proto.waiting_ = function waiting_() {
-      if (this.techWaiting_()) {
-        return;
-      } // All tech waiting checks failed. Use last resort correction
-
-
-      var currentTime = this.tech_.currentTime();
-      var buffered = this.tech_.buffered();
-      var currentRange = findRange(buffered, currentTime); // Sometimes the player can stall for unknown reasons within a contiguous buffered
-      // region with no indication that anything is amiss (seen in Firefox). Seeking to
-      // currentTime is usually enough to kickstart the player. This checks that the player
-      // is currently within a buffered region before attempting a corrective seek.
-      // Chrome does not appear to continue `timeupdate` events after a `waiting` event
-      // until there is ~ 3 seconds of forward buffer available. PlaybackWatcher should also
-      // make sure there is ~3 seconds of forward buffer before taking any corrective action
-      // to avoid triggering an `unknownwaiting` event when the network is slow.
-
-      if (currentRange.length && currentTime + 3 <= currentRange.end(0)) {
-        this.cancelTimer_();
-        this.tech_.setCurrentTime(currentTime);
-        this.logger_("Stopped at " + currentTime + " while inside a buffered region " + ("[" + currentRange.start(0) + " -> " + currentRange.end(0) + "]. Attempting to resume ") + 'playback by seeking to the current time.'); // unknown waiting corrections may be useful for monitoring QoS
-
-        this.tech_.trigger({
-          type: 'usage',
-          name: 'vhs-unknown-waiting'
+    const initPlugin = function (player, options) {
+        let lastCalled = 0;
+        let seekTo = 0;
+        const localOptions = merge(defaultOptions, options);
+        player.ready(() => {
+            player.trigger({
+                type: 'usage',
+                name: 'vhs-error-reload-initialized'
+            });
         });
-        this.tech_.trigger({
-          type: 'usage',
-          name: 'hls-unknown-waiting'
-        });
-        return;
-      }
-    }
+        /**
+         * Player modifications to perform that must wait until `loadedmetadata`
+         * has been triggered
+         *
+         * @private
+         */
+
+        const loadedMetadataHandler = function () {
+            if (seekTo) {
+                player.currentTime(seekTo);
+            }
+        };
+        /**
+         * Set the source on the player element, play, and seek if necessary
+         *
+         * @param {Object} sourceObj An object specifying the source url and mime-type to play
+         * @private
+         */
+
+        const setSource = function (sourceObj) {
+            if (sourceObj === null || sourceObj === undefined) {
+                return;
+            }
+            seekTo = player.duration() !== Infinity && player.currentTime() || 0;
+            player.one('loadedmetadata', loadedMetadataHandler);
+            player.src(sourceObj);
+            player.trigger({
+                type: 'usage',
+                name: 'vhs-error-reload'
+            });
+            player.play();
+        };
+        /**
+         * Attempt to get a source from either the built-in getSource function
+         * or a custom function provided via the options
+         *
+         * @private
+         */
+
+        const errorHandler = function () {
+            // Do not attempt to reload the source if a source-reload occurred before
+            // 'errorInterval' time has elapsed since the last source-reload
+            if (Date.now() - lastCalled < localOptions.errorInterval * 1000) {
+                player.trigger({
+                    type: 'usage',
+                    name: 'vhs-error-reload-canceled'
+                });
+                return;
+            }
+            if (!localOptions.getSource || typeof localOptions.getSource !== 'function') {
+                videojs.log.error('ERROR: reloadSourceOnError - The option getSource must be a function!');
+                return;
+            }
+            lastCalled = Date.now();
+            return localOptions.getSource.call(player, setSource);
+        };
+        /**
+         * Unbind any event handlers that were bound by the plugin
+         *
+         * @private
+         */
+
+        const cleanupEvents = function () {
+            player.off('loadedmetadata', loadedMetadataHandler);
+            player.off('error', errorHandler);
+            player.off('dispose', cleanupEvents);
+        };
+        /**
+         * Cleanup before re-initializing the plugin
+         *
+         * @param {Object} [newOptions] an object with plugin options
+         * @private
+         */
+
+        const reinitPlugin = function (newOptions) {
+            cleanupEvents();
+            initPlugin(player, newOptions);
+        };
+        player.on('error', errorHandler);
+        player.on('dispose', cleanupEvents); // Overwrite the plugin function so that we can correctly cleanup before
+        // initializing the plugin
+
+        player.reloadSourceOnError = reinitPlugin;
+    };
     /**
-     * Handler for situations when the tech fires a `waiting` event
+     * Reload the source when an error is detected as long as there
+     * wasn't an error previously within the last 30 seconds
+     *
+     * @param {Object} [options] an object with plugin options
+     */
+
+    const reloadSourceOnError = function (options) {
+        initPlugin(this, options);
+    };
+    var version$4 = "3.0.2";
+    var version$3 = "6.3.0";
+    var version$2 = "1.0.1";
+    var version$1 = "6.0.0";
+    var version = "4.0.1";
+
+    /**
+     * @file videojs-http-streaming.js
+     *
+     * The main file for the VHS project.
+     * License: https://github.com/videojs/videojs-http-streaming/blob/main/LICENSE
+     */
+    const Vhs = {
+        PlaylistLoader,
+        Playlist,
+        utils,
+        STANDARD_PLAYLIST_SELECTOR: lastBandwidthSelector,
+        INITIAL_PLAYLIST_SELECTOR: lowestBitrateCompatibleVariantSelector,
+        lastBandwidthSelector,
+        movingAverageBandwidthSelector,
+        comparePlaylistBandwidth,
+        comparePlaylistResolution,
+        xhr: xhrFactory()
+    }; // Define getter/setters for config properties
+
+    Object.keys(Config).forEach(prop => {
+        Object.defineProperty(Vhs, prop, {
+            get() {
+                videojs.log.warn(`using Vhs.${prop} is UNSAFE be sure you know what you are doing`);
+                return Config[prop];
+            },
+            set(value) {
+                videojs.log.warn(`using Vhs.${prop} is UNSAFE be sure you know what you are doing`);
+                if (typeof value !== 'number' || value < 0) {
+                    videojs.log.warn(`value of Vhs.${prop} must be greater than or equal to 0`);
+                    return;
+                }
+                Config[prop] = value;
+            }
+        });
+    });
+    const LOCAL_STORAGE_KEY = 'videojs-vhs';
+    /**
+     * Updates the selectedIndex of the QualityLevelList when a mediachange happens in vhs.
+     *
+     * @param {QualityLevelList} qualityLevels The QualityLevelList to update.
+     * @param {PlaylistLoader} playlistLoader PlaylistLoader containing the new media info.
+     * @function handleVhsMediaChange
+     */
+
+    const handleVhsMediaChange = function (qualityLevels, playlistLoader) {
+        const newPlaylist = playlistLoader.media();
+        let selectedIndex = -1;
+        for (let i = 0; i < qualityLevels.length; i++) {
+            if (qualityLevels[i].id === newPlaylist.id) {
+                selectedIndex = i;
+                break;
+            }
+        }
+        qualityLevels.selectedIndex_ = selectedIndex;
+        qualityLevels.trigger({
+            selectedIndex,
+            type: 'change'
+        });
+    };
+    /**
+     * Adds quality levels to list once playlist metadata is available
+     *
+     * @param {QualityLevelList} qualityLevels The QualityLevelList to attach events to.
+     * @param {Object} vhs Vhs object to listen to for media events.
+     * @function handleVhsLoadedMetadata
+     */
+
+    const handleVhsLoadedMetadata = function (qualityLevels, vhs) {
+        vhs.representations().forEach(rep => {
+            qualityLevels.addQualityLevel(rep);
+        });
+        handleVhsMediaChange(qualityLevels, vhs.playlists);
+    }; // VHS is a source handler, not a tech. Make sure attempts to use it
+    // as one do not cause exceptions.
+
+    Vhs.canPlaySource = function () {
+        return videojs.log.warn('VHS is no longer a tech. Please remove it from ' + 'your player\'s techOrder.');
+    };
+    const emeKeySystems = (keySystemOptions, mainPlaylist, audioPlaylist) => {
+        if (!keySystemOptions) {
+            return keySystemOptions;
+        }
+        let codecs = {};
+        if (mainPlaylist && mainPlaylist.attributes && mainPlaylist.attributes.CODECS) {
+            codecs = unwrapCodecList(parseCodecs(mainPlaylist.attributes.CODECS));
+        }
+        if (audioPlaylist && audioPlaylist.attributes && audioPlaylist.attributes.CODECS) {
+            codecs.audio = audioPlaylist.attributes.CODECS;
+        }
+        const videoContentType = getMimeForCodec(codecs.video);
+        const audioContentType = getMimeForCodec(codecs.audio); // upsert the content types based on the selected playlist
+
+        const keySystemContentTypes = {};
+        for (const keySystem in keySystemOptions) {
+            keySystemContentTypes[keySystem] = {};
+            if (audioContentType) {
+                keySystemContentTypes[keySystem].audioContentType = audioContentType;
+            }
+            if (videoContentType) {
+                keySystemContentTypes[keySystem].videoContentType = videoContentType;
+            } // Default to using the video playlist's PSSH even though they may be different, as
+            // videojs-contrib-eme will only accept one in the options.
+            //
+            // This shouldn't be an issue for most cases as early intialization will handle all
+            // unique PSSH values, and if they aren't, then encrypted events should have the
+            // specific information needed for the unique license.
+
+            if (mainPlaylist.contentProtection && mainPlaylist.contentProtection[keySystem] && mainPlaylist.contentProtection[keySystem].pssh) {
+                keySystemContentTypes[keySystem].pssh = mainPlaylist.contentProtection[keySystem].pssh;
+            } // videojs-contrib-eme accepts the option of specifying: 'com.some.cdm': 'url'
+            // so we need to prevent overwriting the URL entirely
+
+            if (typeof keySystemOptions[keySystem] === 'string') {
+                keySystemContentTypes[keySystem].url = keySystemOptions[keySystem];
+            }
+        }
+        return merge(keySystemOptions, keySystemContentTypes);
+    };
+    /**
+     * @typedef {Object} KeySystems
+     *
+     * keySystems configuration for https://github.com/videojs/videojs-contrib-eme
+     * Note: not all options are listed here.
+     *
+     * @property {Uint8Array} [pssh]
+     *           Protection System Specific Header
+     */
+
+    /**
+     * Goes through all the playlists and collects an array of KeySystems options objects
+     * containing each playlist's keySystems and their pssh values, if available.
+     *
+     * @param {Object[]} playlists
+     *        The playlists to look through
+     * @param {string[]} keySystems
+     *        The keySystems to collect pssh values for
+     *
+     * @return {KeySystems[]}
+     *         An array of KeySystems objects containing available key systems and their
+     *         pssh values
+     */
+
+    const getAllPsshKeySystemsOptions = (playlists, keySystems) => {
+        return playlists.reduce((keySystemsArr, playlist) => {
+            if (!playlist.contentProtection) {
+                return keySystemsArr;
+            }
+            const keySystemsOptions = keySystems.reduce((keySystemsObj, keySystem) => {
+                const keySystemOptions = playlist.contentProtection[keySystem];
+                if (keySystemOptions && keySystemOptions.pssh) {
+                    keySystemsObj[keySystem] = {
+                        pssh: keySystemOptions.pssh
+                    };
+                }
+                return keySystemsObj;
+            }, {});
+            if (Object.keys(keySystemsOptions).length) {
+                keySystemsArr.push(keySystemsOptions);
+            }
+            return keySystemsArr;
+        }, []);
+    };
+    /**
+     * Returns a promise that waits for the
+     * [eme plugin](https://github.com/videojs/videojs-contrib-eme) to create a key session.
+     *
+     * Works around https://bugs.chromium.org/p/chromium/issues/detail?id=895449 in non-IE11
+     * browsers.
+     *
+     * As per the above ticket, this is particularly important for Chrome, where, if
+     * unencrypted content is appended before encrypted content and the key session has not
+     * been created, a MEDIA_ERR_DECODE will be thrown once the encrypted content is reached
+     * during playback.
+     *
+     * @param {Object} player
+     *        The player instance
+     * @param {Object[]} sourceKeySystems
+     *        The key systems options from the player source
+     * @param {Object} [audioMedia]
+     *        The active audio media playlist (optional)
+     * @param {Object[]} mainPlaylists
+     *        The playlists found on the main playlist object
+     *
+     * @return {Object}
+     *         Promise that resolves when the key session has been created
+     */
+
+    const waitForKeySessionCreation = ({
+                                           player,
+                                           sourceKeySystems,
+                                           audioMedia,
+                                           mainPlaylists
+                                       }) => {
+        if (!player.eme.initializeMediaKeys) {
+            return Promise.resolve();
+        } // TODO should all audio PSSH values be initialized for DRM?
+        //
+        // All unique video rendition pssh values are initialized for DRM, but here only
+        // the initial audio playlist license is initialized. In theory, an encrypted
+        // event should be fired if the user switches to an alternative audio playlist
+        // where a license is required, but this case hasn't yet been tested. In addition, there
+        // may be many alternate audio playlists unlikely to be used (e.g., multiple different
+        // languages).
+
+        const playlists = audioMedia ? mainPlaylists.concat([audioMedia]) : mainPlaylists;
+        const keySystemsOptionsArr = getAllPsshKeySystemsOptions(playlists, Object.keys(sourceKeySystems));
+        const initializationFinishedPromises = [];
+        const keySessionCreatedPromises = []; // Since PSSH values are interpreted as initData, EME will dedupe any duplicates. The
+        // only place where it should not be deduped is for ms-prefixed APIs, but the early
+        // return for IE11 above, and the existence of modern EME APIs in addition to
+        // ms-prefixed APIs on Edge should prevent this from being a concern.
+        // initializeMediaKeys also won't use the webkit-prefixed APIs.
+
+        keySystemsOptionsArr.forEach(keySystemsOptions => {
+            keySessionCreatedPromises.push(new Promise((resolve, reject) => {
+                player.tech_.one('keysessioncreated', resolve);
+            }));
+            initializationFinishedPromises.push(new Promise((resolve, reject) => {
+                player.eme.initializeMediaKeys({
+                    keySystems: keySystemsOptions
+                }, err => {
+                    if (err) {
+                        reject(err);
+                        return;
+                    }
+                    resolve();
+                });
+            }));
+        }); // The reasons Promise.race is chosen over Promise.any:
+        //
+        // * Promise.any is only available in Safari 14+.
+        // * None of these promises are expected to reject. If they do reject, it might be
+        //   better here for the race to surface the rejection, rather than mask it by using
+        //   Promise.any.
+
+        return Promise.race([
+            // If a session was previously created, these will all finish resolving without
+            // creating a new session, otherwise it will take until the end of all license
+            // requests, which is why the key session check is used (to make setup much faster).
+            Promise.all(initializationFinishedPromises),
+            // Once a single session is created, the browser knows DRM will be used.
+            Promise.race(keySessionCreatedPromises)]);
+    };
+    /**
+     * If the [eme](https://github.com/videojs/videojs-contrib-eme) plugin is available, and
+     * there are keySystems on the source, sets up source options to prepare the source for
+     * eme.
+     *
+     * @param {Object} player
+     *        The player instance
+     * @param {Object[]} sourceKeySystems
+     *        The key systems options from the player source
+     * @param {Object} media
+     *        The active media playlist
+     * @param {Object} [audioMedia]
+     *        The active audio media playlist (optional)
      *
      * @return {boolean}
-     *         True if an action (or none) was needed to correct the waiting. False if no
-     *         checks passed
-     * @private
+     *         Whether or not options were configured and EME is available
      */
-    ;
 
-    _proto.techWaiting_ = function techWaiting_() {
-      var seekable = this.seekable();
-      var currentTime = this.tech_.currentTime();
+    const setupEmeOptions = ({
+                                 player,
+                                 sourceKeySystems,
+                                 media,
+                                 audioMedia
+                             }) => {
+        const sourceOptions = emeKeySystems(sourceKeySystems, media, audioMedia);
+        if (!sourceOptions) {
+            return false;
+        }
+        player.currentSource().keySystems = sourceOptions; // eme handles the rest of the setup, so if it is missing
+        // do nothing.
 
-      if (this.tech_.seeking() || this.timer_ !== null) {
-        // Tech is seeking or already waiting on another action, no action needed
+        if (sourceOptions && !player.eme) {
+            videojs.log.warn('DRM encrypted source cannot be decrypted without a DRM plugin');
+            return false;
+        }
         return true;
-      }
-
-      if (this.beforeSeekableWindow_(seekable, currentTime)) {
-        var livePoint = seekable.end(seekable.length - 1);
-        this.logger_("Fell out of live window at time " + currentTime + ". Seeking to " + ("live point (seekable end) " + livePoint));
-        this.cancelTimer_();
-        this.tech_.setCurrentTime(livePoint); // live window resyncs may be useful for monitoring QoS
-
-        this.tech_.trigger({
-          type: 'usage',
-          name: 'vhs-live-resync'
-        });
-        this.tech_.trigger({
-          type: 'usage',
-          name: 'hls-live-resync'
-        });
-        return true;
-      }
-
-      var sourceUpdater = this.tech_.vhs.masterPlaylistController_.sourceUpdater_;
-      var buffered = this.tech_.buffered();
-      var videoUnderflow = this.videoUnderflow_({
-        audioBuffered: sourceUpdater.audioBuffered(),
-        videoBuffered: sourceUpdater.videoBuffered(),
-        currentTime: currentTime
-      });
-
-      if (videoUnderflow) {
-        // Even though the video underflowed and was stuck in a gap, the audio overplayed
-        // the gap, leading currentTime into a buffered range. Seeking to currentTime
-        // allows the video to catch up to the audio position without losing any audio
-        // (only suffering ~3 seconds of frozen video and a pause in audio playback).
-        this.cancelTimer_();
-        this.tech_.setCurrentTime(currentTime); // video underflow may be useful for monitoring QoS
-
-        this.tech_.trigger({
-          type: 'usage',
-          name: 'vhs-video-underflow'
-        });
-        this.tech_.trigger({
-          type: 'usage',
-          name: 'hls-video-underflow'
-        });
-        return true;
-      }
-
-      var nextRange = findNextRange(buffered, currentTime); // check for gap
-
-      if (nextRange.length > 0) {
-        var difference = nextRange.start(0) - currentTime;
-        this.logger_("Stopped at " + currentTime + ", setting timer for " + difference + ", seeking " + ("to " + nextRange.start(0)));
-        this.cancelTimer_();
-        this.timer_ = setTimeout(this.skipTheGap_.bind(this), difference * 1000, currentTime);
-        return true;
-      } // All checks failed. Returning false to indicate failure to correct waiting
-
-
-      return false;
     };
+    const getVhsLocalStorage = () => {
+        if (!window.localStorage) {
+            return null;
+        }
+        const storedObject = window.localStorage.getItem(LOCAL_STORAGE_KEY);
+        if (!storedObject) {
+            return null;
+        }
+        try {
+            return JSON.parse(storedObject);
+        } catch (e) {
+            // someone may have tampered with the value
+            return null;
+        }
+    };
+    const updateVhsLocalStorage = options => {
+        if (!window.localStorage) {
+            return false;
+        }
+        let objectToStore = getVhsLocalStorage();
+        objectToStore = objectToStore ? merge(objectToStore, options) : options;
+        try {
+            window.localStorage.setItem(LOCAL_STORAGE_KEY, JSON.stringify(objectToStore));
+        } catch (e) {
+            // Throws if storage is full (e.g., always on iOS 5+ Safari private mode, where
+            // storage is set to 0).
+            // https://developer.mozilla.org/en-US/docs/Web/API/Storage/setItem#Exceptions
+            // No need to perform any operation.
+            return false;
+        }
+        return objectToStore;
+    };
+    /**
+     * Parses VHS-supported media types from data URIs. See
+     * https://developer.mozilla.org/en-US/docs/Web/HTTP/Basics_of_HTTP/Data_URIs
+     * for information on data URIs.
+     *
+     * @param {string} dataUri
+     *        The data URI
+     *
+     * @return {string|Object}
+     *         The parsed object/string, or the original string if no supported media type
+     *         was found
+     */
 
-    _proto.afterSeekableWindow_ = function afterSeekableWindow_(seekable, currentTime, playlist, allowSeeksWithinUnsafeLiveWindow) {
-      if (allowSeeksWithinUnsafeLiveWindow === void 0) {
-        allowSeeksWithinUnsafeLiveWindow = false;
-      }
+    const expandDataUri = dataUri => {
+        if (dataUri.toLowerCase().indexOf('data:application/vnd.videojs.vhs+json,') === 0) {
+            return JSON.parse(dataUri.substring(dataUri.indexOf(',') + 1));
+        } // no known case for this data URI, return the string as-is
 
-      if (!seekable.length) {
-        // we can't make a solid case if there's no seekable, default to false
+        return dataUri;
+    };
+    /**
+     * Whether the browser has built-in HLS support.
+     */
+
+    Vhs.supportsNativeHls = function () {
+        if (!document || !document.createElement) {
+            return false;
+        }
+        const video = document.createElement('video'); // native HLS is definitely not supported if HTML5 video isn't
+
+        if (!videojs.getTech('Html5').isSupported()) {
+            return false;
+        } // HLS manifests can go by many mime-types
+
+        const canPlay = [
+            // Apple santioned
+            'application/vnd.apple.mpegurl',
+            // Apple sanctioned for backwards compatibility
+            'audio/mpegurl',
+            // Very common
+            'audio/x-mpegurl',
+            // Very common
+            'application/x-mpegurl',
+            // Included for completeness
+            'video/x-mpegurl', 'video/mpegurl', 'application/mpegurl'];
+        return canPlay.some(function (canItPlay) {
+            return /maybe|probably/i.test(video.canPlayType(canItPlay));
+        });
+    }();
+    Vhs.supportsNativeDash = function () {
+        if (!document || !document.createElement || !videojs.getTech('Html5').isSupported()) {
+            return false;
+        }
+        return /maybe|probably/i.test(document.createElement('video').canPlayType('application/dash+xml'));
+    }();
+    Vhs.supportsTypeNatively = type => {
+        if (type === 'hls') {
+            return Vhs.supportsNativeHls;
+        }
+        if (type === 'dash') {
+            return Vhs.supportsNativeDash;
+        }
         return false;
-      }
-
-      var allowedEnd = seekable.end(seekable.length - 1) + SAFE_TIME_DELTA;
-      var isLive = !playlist.endList;
-
-      if (isLive && allowSeeksWithinUnsafeLiveWindow) {
-        allowedEnd = seekable.end(seekable.length - 1) + playlist.targetDuration * 3;
-      }
-
-      if (currentTime > allowedEnd) {
-        return true;
-      }
-
-      return false;
-    };
-
-    _proto.beforeSeekableWindow_ = function beforeSeekableWindow_(seekable, currentTime) {
-      if (seekable.length && // can't fall before 0 and 0 seekable start identifies VOD stream
-      seekable.start(0) > 0 && currentTime < seekable.start(0) - this.liveRangeSafeTimeDelta) {
-        return true;
-      }
-
-      return false;
-    };
-
-    _proto.videoUnderflow_ = function videoUnderflow_(_ref) {
-      var videoBuffered = _ref.videoBuffered,
-          audioBuffered = _ref.audioBuffered,
-          currentTime = _ref.currentTime; // audio only content will not have video underflow :)
-
-      if (!videoBuffered) {
-        return;
-      }
-
-      var gap; // find a gap in demuxed content.
-
-      if (videoBuffered.length && audioBuffered.length) {
-        // in Chrome audio will continue to play for ~3s when we run out of video
-        // so we have to check that the video buffer did have some buffer in the
-        // past.
-        var lastVideoRange = findRange(videoBuffered, currentTime - 3);
-        var videoRange = findRange(videoBuffered, currentTime);
-        var audioRange = findRange(audioBuffered, currentTime);
-
-        if (audioRange.length && !videoRange.length && lastVideoRange.length) {
-          gap = {
-            start: lastVideoRange.end(0),
-            end: audioRange.end(0)
-          };
-        } // find a gap in muxed content.
-
-      } else {
-        var nextRange = findNextRange(videoBuffered, currentTime); // Even if there is no available next range, there is still a possibility we are
-        // stuck in a gap due to video underflow.
-
-        if (!nextRange.length) {
-          gap = this.gapFromVideoUnderflow_(videoBuffered, currentTime);
-        }
-      }
-
-      if (gap) {
-        this.logger_("Encountered a gap in video from " + gap.start + " to " + gap.end + ". " + ("Seeking to current time " + currentTime));
-        return true;
-      }
-
-      return false;
-    }
-    /**
-     * Timer callback. If playback still has not proceeded, then we seek
-     * to the start of the next buffered region.
-     *
-     * @private
-     */
-    ;
-
-    _proto.skipTheGap_ = function skipTheGap_(scheduledCurrentTime) {
-      var buffered = this.tech_.buffered();
-      var currentTime = this.tech_.currentTime();
-      var nextRange = findNextRange(buffered, currentTime);
-      this.cancelTimer_();
-
-      if (nextRange.length === 0 || currentTime !== scheduledCurrentTime) {
-        return;
-      }
-
-      this.logger_('skipTheGap_:', 'currentTime:', currentTime, 'scheduled currentTime:', scheduledCurrentTime, 'nextRange start:', nextRange.start(0)); // only seek if we still have not played
-
-      this.tech_.setCurrentTime(nextRange.start(0) + TIME_FUDGE_FACTOR);
-      this.tech_.trigger({
-        type: 'usage',
-        name: 'vhs-gap-skip'
-      });
-      this.tech_.trigger({
-        type: 'usage',
-        name: 'hls-gap-skip'
-      });
-    };
-
-    _proto.gapFromVideoUnderflow_ = function gapFromVideoUnderflow_(buffered, currentTime) {
-      // At least in Chrome, if there is a gap in the video buffer, the audio will continue
-      // playing for ~3 seconds after the video gap starts. This is done to account for
-      // video buffer underflow/underrun (note that this is not done when there is audio
-      // buffer underflow/underrun -- in that case the video will stop as soon as it
-      // encounters the gap, as audio stalls are more noticeable/jarring to a user than
-      // video stalls). The player's time will reflect the playthrough of audio, so the
-      // time will appear as if we are in a buffered region, even if we are stuck in a
-      // "gap."
-      //
-      // Example:
-      // video buffer:   0 => 10.1, 10.2 => 20
-      // audio buffer:   0 => 20
-      // overall buffer: 0 => 10.1, 10.2 => 20
-      // current time: 13
-      //
-      // Chrome's video froze at 10 seconds, where the video buffer encountered the gap,
-      // however, the audio continued playing until it reached ~3 seconds past the gap
-      // (13 seconds), at which point it stops as well. Since current time is past the
-      // gap, findNextRange will return no ranges.
-      //
-      // To check for this issue, we see if there is a gap that starts somewhere within
-      // a 3 second range (3 seconds +/- 1 second) back from our current time.
-      var gaps = findGaps(buffered);
-
-      for (var i = 0; i < gaps.length; i++) {
-        var start = gaps.start(i);
-        var end = gaps.end(i); // gap is starts no more than 4 seconds back
-
-        if (currentTime - start < 4 && currentTime - start > 2) {
-          return {
-            start: start,
-            end: end
-          };
-        }
-      }
-
-      return null;
-    };
-
-    return PlaybackWatcher;
-  }();
-
-  var defaultOptions = {
-    errorInterval: 30,
-    getSource: function getSource(next) {
-      var tech = this.tech({
-        IWillNotUseThisInPlugins: true
-      });
-      var sourceObj = tech.currentSource_ || this.currentSource();
-      return next(sourceObj);
-    }
-  };
-  /**
-   * Main entry point for the plugin
-   *
-   * @param {Player} player a reference to a videojs Player instance
-   * @param {Object} [options] an object with plugin options
-   * @private
-   */
-
-  var initPlugin = function initPlugin(player, options) {
-    var lastCalled = 0;
-    var seekTo = 0;
-    var localOptions = videojs.mergeOptions(defaultOptions, options);
-    player.ready(function () {
-      player.trigger({
-        type: 'usage',
-        name: 'vhs-error-reload-initialized'
-      });
-      player.trigger({
-        type: 'usage',
-        name: 'hls-error-reload-initialized'
-      });
-    });
-    /**
-     * Player modifications to perform that must wait until `loadedmetadata`
-     * has been triggered
-     *
-     * @private
-     */
-
-    var loadedMetadataHandler = function loadedMetadataHandler() {
-      if (seekTo) {
-        player.currentTime(seekTo);
-      }
     };
     /**
-     * Set the source on the player element, play, and seek if necessary
-     *
-     * @param {Object} sourceObj An object specifying the source url and mime-type to play
-     * @private
+     * VHS is a source handler, not a tech. Make sure attempts to use it
+     * as one do not cause exceptions.
      */
 
-
-    var setSource = function setSource(sourceObj) {
-      if (sourceObj === null || sourceObj === undefined) {
-        return;
-      }
-
-      seekTo = player.duration() !== Infinity && player.currentTime() || 0;
-      player.one('loadedmetadata', loadedMetadataHandler);
-      player.src(sourceObj);
-      player.trigger({
-        type: 'usage',
-        name: 'vhs-error-reload'
-      });
-      player.trigger({
-        type: 'usage',
-        name: 'hls-error-reload'
-      });
-      player.play();
+    Vhs.isSupported = function () {
+        return videojs.log.warn('VHS is no longer a tech. Please remove it from ' + 'your player\'s techOrder.');
     };
+    const Component = videojs.getComponent('Component');
     /**
-     * Attempt to get a source from either the built-in getSource function
-     * or a custom function provided via the options
+     * The Vhs Handler object, where we orchestrate all of the parts
+     * of VHS to interact with video.js
      *
-     * @private
+     * @class VhsHandler
+     * @extends videojs.Component
+     * @param {Object} source the soruce object
+     * @param {Tech} tech the parent tech object
+     * @param {Object} options optional and required options
      */
 
+    class VhsHandler extends Component {
+        constructor(source, tech, options) {
+            super(tech, options.vhs); // if a tech level `initialBandwidth` option was passed
+            // use that over the VHS level `bandwidth` option
 
-    var errorHandler = function errorHandler() {
-      // Do not attempt to reload the source if a source-reload occurred before
-      // 'errorInterval' time has elapsed since the last source-reload
-      if (Date.now() - lastCalled < localOptions.errorInterval * 1000) {
-        player.trigger({
-          type: 'usage',
-          name: 'vhs-error-reload-canceled'
-        });
-        player.trigger({
-          type: 'usage',
-          name: 'hls-error-reload-canceled'
-        });
-        return;
-      }
-
-      if (!localOptions.getSource || typeof localOptions.getSource !== 'function') {
-        videojs.log.error('ERROR: reloadSourceOnError - The option getSource must be a function!');
-        return;
-      }
-
-      lastCalled = Date.now();
-      return localOptions.getSource.call(player, setSource);
-    };
-    /**
-     * Unbind any event handlers that were bound by the plugin
-     *
-     * @private
-     */
-
-
-    var cleanupEvents = function cleanupEvents() {
-      player.off('loadedmetadata', loadedMetadataHandler);
-      player.off('error', errorHandler);
-      player.off('dispose', cleanupEvents);
-    };
-    /**
-     * Cleanup before re-initializing the plugin
-     *
-     * @param {Object} [newOptions] an object with plugin options
-     * @private
-     */
-
-
-    var reinitPlugin = function reinitPlugin(newOptions) {
-      cleanupEvents();
-      initPlugin(player, newOptions);
-    };
-
-    player.on('error', errorHandler);
-    player.on('dispose', cleanupEvents); // Overwrite the plugin function so that we can correctly cleanup before
-    // initializing the plugin
-
-    player.reloadSourceOnError = reinitPlugin;
-  };
-  /**
-   * Reload the source when an error is detected as long as there
-   * wasn't an error previously within the last 30 seconds
-   *
-   * @param {Object} [options] an object with plugin options
-   */
-
-
-  var reloadSourceOnError = function reloadSourceOnError(options) {
-    initPlugin(this, options);
-  };
-
-  var version$4 = "2.14.3";
-  var version$3 = "6.0.1";
-  var version$2 = "0.21.1";
-  var version$1 = "4.7.1";
-  var version = "3.1.3";
-  var Vhs = {
-    PlaylistLoader: PlaylistLoader,
-    Playlist: Playlist,
-    utils: utils,
-    STANDARD_PLAYLIST_SELECTOR: lastBandwidthSelector,
-    INITIAL_PLAYLIST_SELECTOR: lowestBitrateCompatibleVariantSelector,
-    lastBandwidthSelector: lastBandwidthSelector,
-    movingAverageBandwidthSelector: movingAverageBandwidthSelector,
-    comparePlaylistBandwidth: comparePlaylistBandwidth,
-    comparePlaylistResolution: comparePlaylistResolution,
-    xhr: xhrFactory()
-  }; // Define getter/setters for config properties
-
-  Object.keys(Config).forEach(function (prop) {
-    Object.defineProperty(Vhs, prop, {
-      get: function get() {
-        videojs.log.warn("using Vhs." + prop + " is UNSAFE be sure you know what you are doing");
-        return Config[prop];
-      },
-      set: function set(value) {
-        videojs.log.warn("using Vhs." + prop + " is UNSAFE be sure you know what you are doing");
-
-        if (typeof value !== 'number' || value < 0) {
-          videojs.log.warn("value of Vhs." + prop + " must be greater than or equal to 0");
-          return;
-        }
-
-        Config[prop] = value;
-      }
-    });
-  });
-  var LOCAL_STORAGE_KEY = 'videojs-vhs';
-  /**
-   * Updates the selectedIndex of the QualityLevelList when a mediachange happens in vhs.
-   *
-   * @param {QualityLevelList} qualityLevels The QualityLevelList to update.
-   * @param {PlaylistLoader} playlistLoader PlaylistLoader containing the new media info.
-   * @function handleVhsMediaChange
-   */
-
-  var handleVhsMediaChange = function handleVhsMediaChange(qualityLevels, playlistLoader) {
-    var newPlaylist = playlistLoader.media();
-    var selectedIndex = -1;
-
-    for (var i = 0; i < qualityLevels.length; i++) {
-      if (qualityLevels[i].id === newPlaylist.id) {
-        selectedIndex = i;
-        break;
-      }
-    }
-
-    qualityLevels.selectedIndex_ = selectedIndex;
-    qualityLevels.trigger({
-      selectedIndex: selectedIndex,
-      type: 'change'
-    });
-  };
-  /**
-   * Adds quality levels to list once playlist metadata is available
-   *
-   * @param {QualityLevelList} qualityLevels The QualityLevelList to attach events to.
-   * @param {Object} vhs Vhs object to listen to for media events.
-   * @function handleVhsLoadedMetadata
-   */
-
-
-  var handleVhsLoadedMetadata = function handleVhsLoadedMetadata(qualityLevels, vhs) {
-    vhs.representations().forEach(function (rep) {
-      qualityLevels.addQualityLevel(rep);
-    });
-    handleVhsMediaChange(qualityLevels, vhs.playlists);
-  }; // HLS is a source handler, not a tech. Make sure attempts to use it
-  // as one do not cause exceptions.
-
-
-  Vhs.canPlaySource = function () {
-    return videojs.log.warn('HLS is no longer a tech. Please remove it from ' + 'your player\'s techOrder.');
-  };
-
-  var emeKeySystems = function emeKeySystems(keySystemOptions, mainPlaylist, audioPlaylist) {
-    if (!keySystemOptions) {
-      return keySystemOptions;
-    }
-
-    var codecs = {};
-
-    if (mainPlaylist && mainPlaylist.attributes && mainPlaylist.attributes.CODECS) {
-      codecs = unwrapCodecList(parseCodecs(mainPlaylist.attributes.CODECS));
-    }
-
-    if (audioPlaylist && audioPlaylist.attributes && audioPlaylist.attributes.CODECS) {
-      codecs.audio = audioPlaylist.attributes.CODECS;
-    }
-
-    var videoContentType = getMimeForCodec(codecs.video);
-    var audioContentType = getMimeForCodec(codecs.audio); // upsert the content types based on the selected playlist
-
-    var keySystemContentTypes = {};
-
-    for (var keySystem in keySystemOptions) {
-      keySystemContentTypes[keySystem] = {};
-
-      if (audioContentType) {
-        keySystemContentTypes[keySystem].audioContentType = audioContentType;
-      }
-
-      if (videoContentType) {
-        keySystemContentTypes[keySystem].videoContentType = videoContentType;
-      } // Default to using the video playlist's PSSH even though they may be different, as
-      // videojs-contrib-eme will only accept one in the options.
-      //
-      // This shouldn't be an issue for most cases as early intialization will handle all
-      // unique PSSH values, and if they aren't, then encrypted events should have the
-      // specific information needed for the unique license.
-
-
-      if (mainPlaylist.contentProtection && mainPlaylist.contentProtection[keySystem] && mainPlaylist.contentProtection[keySystem].pssh) {
-        keySystemContentTypes[keySystem].pssh = mainPlaylist.contentProtection[keySystem].pssh;
-      } // videojs-contrib-eme accepts the option of specifying: 'com.some.cdm': 'url'
-      // so we need to prevent overwriting the URL entirely
-
-
-      if (typeof keySystemOptions[keySystem] === 'string') {
-        keySystemContentTypes[keySystem].url = keySystemOptions[keySystem];
-      }
-    }
-
-    return videojs.mergeOptions(keySystemOptions, keySystemContentTypes);
-  };
-  /**
-   * @typedef {Object} KeySystems
-   *
-   * keySystems configuration for https://github.com/videojs/videojs-contrib-eme
-   * Note: not all options are listed here.
-   *
-   * @property {Uint8Array} [pssh]
-   *           Protection System Specific Header
-   */
-
-  /**
-   * Goes through all the playlists and collects an array of KeySystems options objects
-   * containing each playlist's keySystems and their pssh values, if available.
-   *
-   * @param {Object[]} playlists
-   *        The playlists to look through
-   * @param {string[]} keySystems
-   *        The keySystems to collect pssh values for
-   *
-   * @return {KeySystems[]}
-   *         An array of KeySystems objects containing available key systems and their
-   *         pssh values
-   */
-
-
-  var getAllPsshKeySystemsOptions = function getAllPsshKeySystemsOptions(playlists, keySystems) {
-    return playlists.reduce(function (keySystemsArr, playlist) {
-      if (!playlist.contentProtection) {
-        return keySystemsArr;
-      }
-
-      var keySystemsOptions = keySystems.reduce(function (keySystemsObj, keySystem) {
-        var keySystemOptions = playlist.contentProtection[keySystem];
-
-        if (keySystemOptions && keySystemOptions.pssh) {
-          keySystemsObj[keySystem] = {
-            pssh: keySystemOptions.pssh
-          };
-        }
-
-        return keySystemsObj;
-      }, {});
-
-      if (Object.keys(keySystemsOptions).length) {
-        keySystemsArr.push(keySystemsOptions);
-      }
-
-      return keySystemsArr;
-    }, []);
-  };
-  /**
-   * Returns a promise that waits for the
-   * [eme plugin](https://github.com/videojs/videojs-contrib-eme) to create a key session.
-   *
-   * Works around https://bugs.chromium.org/p/chromium/issues/detail?id=895449 in non-IE11
-   * browsers.
-   *
-   * As per the above ticket, this is particularly important for Chrome, where, if
-   * unencrypted content is appended before encrypted content and the key session has not
-   * been created, a MEDIA_ERR_DECODE will be thrown once the encrypted content is reached
-   * during playback.
-   *
-   * @param {Object} player
-   *        The player instance
-   * @param {Object[]} sourceKeySystems
-   *        The key systems options from the player source
-   * @param {Object} [audioMedia]
-   *        The active audio media playlist (optional)
-   * @param {Object[]} mainPlaylists
-   *        The playlists found on the master playlist object
-   *
-   * @return {Object}
-   *         Promise that resolves when the key session has been created
-   */
-
-
-  var waitForKeySessionCreation = function waitForKeySessionCreation(_ref) {
-    var player = _ref.player,
-        sourceKeySystems = _ref.sourceKeySystems,
-        audioMedia = _ref.audioMedia,
-        mainPlaylists = _ref.mainPlaylists;
-
-    if (!player.eme.initializeMediaKeys) {
-      return Promise.resolve();
-    } // TODO should all audio PSSH values be initialized for DRM?
-    //
-    // All unique video rendition pssh values are initialized for DRM, but here only
-    // the initial audio playlist license is initialized. In theory, an encrypted
-    // event should be fired if the user switches to an alternative audio playlist
-    // where a license is required, but this case hasn't yet been tested. In addition, there
-    // may be many alternate audio playlists unlikely to be used (e.g., multiple different
-    // languages).
-
-
-    var playlists = audioMedia ? mainPlaylists.concat([audioMedia]) : mainPlaylists;
-    var keySystemsOptionsArr = getAllPsshKeySystemsOptions(playlists, Object.keys(sourceKeySystems));
-    var initializationFinishedPromises = [];
-    var keySessionCreatedPromises = []; // Since PSSH values are interpreted as initData, EME will dedupe any duplicates. The
-    // only place where it should not be deduped is for ms-prefixed APIs, but the early
-    // return for IE11 above, and the existence of modern EME APIs in addition to
-    // ms-prefixed APIs on Edge should prevent this from being a concern.
-    // initializeMediaKeys also won't use the webkit-prefixed APIs.
-
-    keySystemsOptionsArr.forEach(function (keySystemsOptions) {
-      keySessionCreatedPromises.push(new Promise(function (resolve, reject) {
-        player.tech_.one('keysessioncreated', resolve);
-      }));
-      initializationFinishedPromises.push(new Promise(function (resolve, reject) {
-        player.eme.initializeMediaKeys({
-          keySystems: keySystemsOptions
-        }, function (err) {
-          if (err) {
-            reject(err);
-            return;
-          }
-
-          resolve();
-        });
-      }));
-    }); // The reasons Promise.race is chosen over Promise.any:
-    //
-    // * Promise.any is only available in Safari 14+.
-    // * None of these promises are expected to reject. If they do reject, it might be
-    //   better here for the race to surface the rejection, rather than mask it by using
-    //   Promise.any.
-
-    return Promise.race([// If a session was previously created, these will all finish resolving without
-    // creating a new session, otherwise it will take until the end of all license
-    // requests, which is why the key session check is used (to make setup much faster).
-    Promise.all(initializationFinishedPromises), // Once a single session is created, the browser knows DRM will be used.
-    Promise.race(keySessionCreatedPromises)]);
-  };
-  /**
-   * If the [eme](https://github.com/videojs/videojs-contrib-eme) plugin is available, and
-   * there are keySystems on the source, sets up source options to prepare the source for
-   * eme.
-   *
-   * @param {Object} player
-   *        The player instance
-   * @param {Object[]} sourceKeySystems
-   *        The key systems options from the player source
-   * @param {Object} media
-   *        The active media playlist
-   * @param {Object} [audioMedia]
-   *        The active audio media playlist (optional)
-   *
-   * @return {boolean}
-   *         Whether or not options were configured and EME is available
-   */
-
-
-  var setupEmeOptions = function setupEmeOptions(_ref2) {
-    var player = _ref2.player,
-        sourceKeySystems = _ref2.sourceKeySystems,
-        media = _ref2.media,
-        audioMedia = _ref2.audioMedia;
-    var sourceOptions = emeKeySystems(sourceKeySystems, media, audioMedia);
-
-    if (!sourceOptions) {
-      return false;
-    }
-
-    player.currentSource().keySystems = sourceOptions; // eme handles the rest of the setup, so if it is missing
-    // do nothing.
-
-    if (sourceOptions && !player.eme) {
-      videojs.log.warn('DRM encrypted source cannot be decrypted without a DRM plugin');
-      return false;
-    }
-
-    return true;
-  };
-
-  var getVhsLocalStorage = function getVhsLocalStorage() {
-    if (!window.localStorage) {
-      return null;
-    }
-
-    var storedObject = window.localStorage.getItem(LOCAL_STORAGE_KEY);
-
-    if (!storedObject) {
-      return null;
-    }
-
-    try {
-      return JSON.parse(storedObject);
-    } catch (e) {
-      // someone may have tampered with the value
-      return null;
-    }
-  };
-
-  var updateVhsLocalStorage = function updateVhsLocalStorage(options) {
-    if (!window.localStorage) {
-      return false;
-    }
-
-    var objectToStore = getVhsLocalStorage();
-    objectToStore = objectToStore ? videojs.mergeOptions(objectToStore, options) : options;
-
-    try {
-      window.localStorage.setItem(LOCAL_STORAGE_KEY, JSON.stringify(objectToStore));
-    } catch (e) {
-      // Throws if storage is full (e.g., always on iOS 5+ Safari private mode, where
-      // storage is set to 0).
-      // https://developer.mozilla.org/en-US/docs/Web/API/Storage/setItem#Exceptions
-      // No need to perform any operation.
-      return false;
-    }
-
-    return objectToStore;
-  };
-  /**
-   * Parses VHS-supported media types from data URIs. See
-   * https://developer.mozilla.org/en-US/docs/Web/HTTP/Basics_of_HTTP/Data_URIs
-   * for information on data URIs.
-   *
-   * @param {string} dataUri
-   *        The data URI
-   *
-   * @return {string|Object}
-   *         The parsed object/string, or the original string if no supported media type
-   *         was found
-   */
-
-
-  var expandDataUri = function expandDataUri(dataUri) {
-    if (dataUri.toLowerCase().indexOf('data:application/vnd.videojs.vhs+json,') === 0) {
-      return JSON.parse(dataUri.substring(dataUri.indexOf(',') + 1));
-    } // no known case for this data URI, return the string as-is
-
-
-    return dataUri;
-  };
-  /**
-   * Whether the browser has built-in HLS support.
-   */
-
-
-  Vhs.supportsNativeHls = function () {
-    if (!document || !document.createElement) {
-      return false;
-    }
-
-    var video = document.createElement('video'); // native HLS is definitely not supported if HTML5 video isn't
-
-    if (!videojs.getTech('Html5').isSupported()) {
-      return false;
-    } // HLS manifests can go by many mime-types
-
-
-    var canPlay = [// Apple santioned
-    'application/vnd.apple.mpegurl', // Apple sanctioned for backwards compatibility
-    'audio/mpegurl', // Very common
-    'audio/x-mpegurl', // Very common
-    'application/x-mpegurl', // Included for completeness
-    'video/x-mpegurl', 'video/mpegurl', 'application/mpegurl'];
-    return canPlay.some(function (canItPlay) {
-      return /maybe|probably/i.test(video.canPlayType(canItPlay));
-    });
-  }();
-
-  Vhs.supportsNativeDash = function () {
-    if (!document || !document.createElement || !videojs.getTech('Html5').isSupported()) {
-      return false;
-    }
-
-    return /maybe|probably/i.test(document.createElement('video').canPlayType('application/dash+xml'));
-  }();
-
-  Vhs.supportsTypeNatively = function (type) {
-    if (type === 'hls') {
-      return Vhs.supportsNativeHls;
-    }
-
-    if (type === 'dash') {
-      return Vhs.supportsNativeDash;
-    }
-
-    return false;
-  };
-  /**
-   * HLS is a source handler, not a tech. Make sure attempts to use it
-   * as one do not cause exceptions.
-   */
-
-
-  Vhs.isSupported = function () {
-    return videojs.log.warn('HLS is no longer a tech. Please remove it from ' + 'your player\'s techOrder.');
-  };
-
-  var Component = videojs.getComponent('Component');
-  /**
-   * The Vhs Handler object, where we orchestrate all of the parts
-   * of HLS to interact with video.js
-   *
-   * @class VhsHandler
-   * @extends videojs.Component
-   * @param {Object} source the soruce object
-   * @param {Tech} tech the parent tech object
-   * @param {Object} options optional and required options
-   */
-
-  var VhsHandler = /*#__PURE__*/function (_Component) {
-    inheritsLoose(VhsHandler, _Component);
-
-    function VhsHandler(source, tech, options) {
-      var _this;
-
-      _this = _Component.call(this, tech, videojs.mergeOptions(options.hls, options.vhs)) || this;
-
-      if (options.hls && Object.keys(options.hls).length) {
-        videojs.log.warn('Using hls options is deprecated. Please rename `hls` to `vhs` in your options object.');
-      } // if a tech level `initialBandwidth` option was passed
-      // use that over the VHS level `bandwidth` option
-
-
-      if (typeof options.initialBandwidth === 'number') {
-        _this.options_.bandwidth = options.initialBandwidth;
-      }
-
-      _this.logger_ = logger('VhsHandler'); // tech.player() is deprecated but setup a reference to HLS for
-      // backwards-compatibility
-
-      if (tech.options_ && tech.options_.playerId) {
-        var _player = videojs(tech.options_.playerId);
-
-        if (!_player.hasOwnProperty('hls')) {
-          Object.defineProperty(_player, 'hls', {
-            get: function get() {
-              videojs.log.warn('player.hls is deprecated. Use player.tech().vhs instead.');
-              tech.trigger({
-                type: 'usage',
-                name: 'hls-player-access'
-              });
-              return assertThisInitialized(_this);
-            },
-            configurable: true
-          });
-        }
-
-        if (!_player.hasOwnProperty('vhs')) {
-          Object.defineProperty(_player, 'vhs', {
-            get: function get() {
-              videojs.log.warn('player.vhs is deprecated. Use player.tech().vhs instead.');
-              tech.trigger({
-                type: 'usage',
-                name: 'vhs-player-access'
-              });
-              return assertThisInitialized(_this);
-            },
-            configurable: true
-          });
-        }
-
-        if (!_player.hasOwnProperty('dash')) {
-          Object.defineProperty(_player, 'dash', {
-            get: function get() {
-              videojs.log.warn('player.dash is deprecated. Use player.tech().vhs instead.');
-              return assertThisInitialized(_this);
-            },
-            configurable: true
-          });
-        }
-
-        _this.player_ = _player;
-      }
-
-      _this.tech_ = tech;
-      _this.source_ = source;
-      _this.stats = {};
-      _this.ignoreNextSeekingEvent_ = false;
-
-      _this.setOptions_();
-
-      if (_this.options_.overrideNative && tech.overrideNativeAudioTracks && tech.overrideNativeVideoTracks) {
-        tech.overrideNativeAudioTracks(true);
-        tech.overrideNativeVideoTracks(true);
-      } else if (_this.options_.overrideNative && (tech.featuresNativeVideoTracks || tech.featuresNativeAudioTracks)) {
-        // overriding native HLS only works if audio tracks have been emulated
-        // error early if we're misconfigured
-        throw new Error('Overriding native HLS requires emulated tracks. ' + 'See https://git.io/vMpjB');
-      } // listen for fullscreenchange events for this player so that we
-      // can adjust our quality selection quickly
-
-
-      _this.on(document, ['fullscreenchange', 'webkitfullscreenchange', 'mozfullscreenchange', 'MSFullscreenChange'], function (event) {
-        var fullscreenElement = document.fullscreenElement || document.webkitFullscreenElement || document.mozFullScreenElement || document.msFullscreenElement;
-
-        if (fullscreenElement && fullscreenElement.contains(_this.tech_.el())) {
-          _this.masterPlaylistController_.fastQualityChange_();
-        } else {
-          // When leaving fullscreen, since the in page pixel dimensions should be smaller
-          // than full screen, see if there should be a rendition switch down to preserve
-          // bandwidth.
-          _this.masterPlaylistController_.checkABR_();
-        }
-      });
-
-      _this.on(_this.tech_, 'seeking', function () {
-        if (this.ignoreNextSeekingEvent_) {
-          this.ignoreNextSeekingEvent_ = false;
-          return;
-        }
-
-        this.setCurrentTime(this.tech_.currentTime());
-      });
-
-      _this.on(_this.tech_, 'error', function () {
-        // verify that the error was real and we are loaded
-        // enough to have mpc loaded.
-        if (this.tech_.error() && this.masterPlaylistController_) {
-          this.masterPlaylistController_.pauseLoading();
-        }
-      });
-
-      _this.on(_this.tech_, 'play', _this.play);
-
-      return _this;
-    }
-
-    var _proto = VhsHandler.prototype;
-
-    _proto.setOptions_ = function setOptions_() {
-      var _this2 = this; // defaults
-
-
-      this.options_.withCredentials = this.options_.withCredentials || false;
-      this.options_.handleManifestRedirects = this.options_.handleManifestRedirects === false ? false : true;
-      this.options_.limitRenditionByPlayerDimensions = this.options_.limitRenditionByPlayerDimensions === false ? false : true;
-      this.options_.useDevicePixelRatio = this.options_.useDevicePixelRatio || false;
-      this.options_.smoothQualityChange = this.options_.smoothQualityChange || false;
-      this.options_.useBandwidthFromLocalStorage = typeof this.source_.useBandwidthFromLocalStorage !== 'undefined' ? this.source_.useBandwidthFromLocalStorage : this.options_.useBandwidthFromLocalStorage || false;
-      this.options_.useNetworkInformationApi = this.options_.useNetworkInformationApi || false;
-      this.options_.useDtsForTimestampOffset = this.options_.useDtsForTimestampOffset || false;
-      this.options_.customTagParsers = this.options_.customTagParsers || [];
-      this.options_.customTagMappers = this.options_.customTagMappers || [];
-      this.options_.cacheEncryptionKeys = this.options_.cacheEncryptionKeys || false;
-
-      if (typeof this.options_.blacklistDuration !== 'number') {
-        this.options_.blacklistDuration = 5 * 60;
-      }
-
-      if (typeof this.options_.bandwidth !== 'number') {
-        if (this.options_.useBandwidthFromLocalStorage) {
-          var storedObject = getVhsLocalStorage();
-
-          if (storedObject && storedObject.bandwidth) {
-            this.options_.bandwidth = storedObject.bandwidth;
-            this.tech_.trigger({
-              type: 'usage',
-              name: 'vhs-bandwidth-from-local-storage'
-            });
-            this.tech_.trigger({
-              type: 'usage',
-              name: 'hls-bandwidth-from-local-storage'
-            });
-          }
-
-          if (storedObject && storedObject.throughput) {
-            this.options_.throughput = storedObject.throughput;
-            this.tech_.trigger({
-              type: 'usage',
-              name: 'vhs-throughput-from-local-storage'
-            });
-            this.tech_.trigger({
-              type: 'usage',
-              name: 'hls-throughput-from-local-storage'
-            });
-          }
-        }
-      } // if bandwidth was not set by options or pulled from local storage, start playlist
-      // selection at a reasonable bandwidth
-
-
-      if (typeof this.options_.bandwidth !== 'number') {
-        this.options_.bandwidth = Config.INITIAL_BANDWIDTH;
-      } // If the bandwidth number is unchanged from the initial setting
-      // then this takes precedence over the enableLowInitialPlaylist option
-
-
-      this.options_.enableLowInitialPlaylist = this.options_.enableLowInitialPlaylist && this.options_.bandwidth === Config.INITIAL_BANDWIDTH; // grab options passed to player.src
-
-      ['withCredentials', 'useDevicePixelRatio', 'limitRenditionByPlayerDimensions', 'bandwidth', 'smoothQualityChange', 'customTagParsers', 'customTagMappers', 'handleManifestRedirects', 'cacheEncryptionKeys', 'playlistSelector', 'initialPlaylistSelector', 'experimentalBufferBasedABR', 'liveRangeSafeTimeDelta', 'experimentalLLHLS', 'useNetworkInformationApi', 'useDtsForTimestampOffset', 'experimentalExactManifestTimings', 'experimentalLeastPixelDiffSelector'].forEach(function (option) {
-        if (typeof _this2.source_[option] !== 'undefined') {
-          _this2.options_[option] = _this2.source_[option];
-        }
-      });
-      this.limitRenditionByPlayerDimensions = this.options_.limitRenditionByPlayerDimensions;
-      this.useDevicePixelRatio = this.options_.useDevicePixelRatio;
-    }
-    /**
-     * called when player.src gets called, handle a new source
-     *
-     * @param {Object} src the source object to handle
-     */
-    ;
-
-    _proto.src = function src(_src, type) {
-      var _this3 = this; // do nothing if the src is falsey
-
-
-      if (!_src) {
-        return;
-      }
-
-      this.setOptions_(); // add master playlist controller options
-
-      this.options_.src = expandDataUri(this.source_.src);
-      this.options_.tech = this.tech_;
-      this.options_.externVhs = Vhs;
-      this.options_.sourceType = simpleTypeFromSourceType(type); // Whenever we seek internally, we should update the tech
-
-      this.options_.seekTo = function (time) {
-        _this3.tech_.setCurrentTime(time);
-      };
-
-      if (this.options_.smoothQualityChange) {
-        videojs.log.warn('smoothQualityChange is deprecated and will be removed in the next major version');
-      }
-
-      this.masterPlaylistController_ = new MasterPlaylistController(this.options_);
-      var playbackWatcherOptions = videojs.mergeOptions({
-        liveRangeSafeTimeDelta: SAFE_TIME_DELTA
-      }, this.options_, {
-        seekable: function seekable() {
-          return _this3.seekable();
-        },
-        media: function media() {
-          return _this3.masterPlaylistController_.media();
-        },
-        masterPlaylistController: this.masterPlaylistController_
-      });
-      this.playbackWatcher_ = new PlaybackWatcher(playbackWatcherOptions);
-      this.masterPlaylistController_.on('error', function () {
-        var player = videojs.players[_this3.tech_.options_.playerId];
-        var error = _this3.masterPlaylistController_.error;
-
-        if (typeof error === 'object' && !error.code) {
-          error.code = 3;
-        } else if (typeof error === 'string') {
-          error = {
-            message: error,
-            code: 3
-          };
-        }
-
-        player.error(error);
-      });
-      var defaultSelector = this.options_.experimentalBufferBasedABR ? Vhs.movingAverageBandwidthSelector(0.55) : Vhs.STANDARD_PLAYLIST_SELECTOR; // `this` in selectPlaylist should be the VhsHandler for backwards
-      // compatibility with < v2
-
-      this.masterPlaylistController_.selectPlaylist = this.selectPlaylist ? this.selectPlaylist.bind(this) : defaultSelector.bind(this);
-      this.masterPlaylistController_.selectInitialPlaylist = Vhs.INITIAL_PLAYLIST_SELECTOR.bind(this); // re-expose some internal objects for backwards compatibility with < v2
-
-      this.playlists = this.masterPlaylistController_.masterPlaylistLoader_;
-      this.mediaSource = this.masterPlaylistController_.mediaSource; // Proxy assignment of some properties to the master playlist
-      // controller. Using a custom property for backwards compatibility
-      // with < v2
-
-      Object.defineProperties(this, {
-        selectPlaylist: {
-          get: function get() {
-            return this.masterPlaylistController_.selectPlaylist;
-          },
-          set: function set(selectPlaylist) {
-            this.masterPlaylistController_.selectPlaylist = selectPlaylist.bind(this);
-          }
-        },
-        throughput: {
-          get: function get() {
-            return this.masterPlaylistController_.mainSegmentLoader_.throughput.rate;
-          },
-          set: function set(throughput) {
-            this.masterPlaylistController_.mainSegmentLoader_.throughput.rate = throughput; // By setting `count` to 1 the throughput value becomes the starting value
-            // for the cumulative average
-
-            this.masterPlaylistController_.mainSegmentLoader_.throughput.count = 1;
-          }
-        },
-        bandwidth: {
-          get: function get() {
-            var playerBandwidthEst = this.masterPlaylistController_.mainSegmentLoader_.bandwidth;
-            var networkInformation = window.navigator.connection || window.navigator.mozConnection || window.navigator.webkitConnection;
-            var tenMbpsAsBitsPerSecond = 10e6;
-
-            if (this.options_.useNetworkInformationApi && networkInformation) {
-              // downlink returns Mbps
-              // https://developer.mozilla.org/en-US/docs/Web/API/NetworkInformation/downlink
-              var networkInfoBandwidthEstBitsPerSec = networkInformation.downlink * 1000 * 1000; // downlink maxes out at 10 Mbps. In the event that both networkInformationApi and the player
-              // estimate a bandwidth greater than 10 Mbps, use the larger of the two estimates to ensure that
-              // high quality streams are not filtered out.
-
-              if (networkInfoBandwidthEstBitsPerSec >= tenMbpsAsBitsPerSecond && playerBandwidthEst >= tenMbpsAsBitsPerSecond) {
-                playerBandwidthEst = Math.max(playerBandwidthEst, networkInfoBandwidthEstBitsPerSec);
-              } else {
-                playerBandwidthEst = networkInfoBandwidthEstBitsPerSec;
-              }
+            if (typeof options.initialBandwidth === 'number') {
+                this.options_.bandwidth = options.initialBandwidth;
             }
+            this.logger_ = logger('VhsHandler'); // we need access to the player in some cases,
+            // so, get it from Video.js via the `playerId`
 
-            return playerBandwidthEst;
-          },
-          set: function set(bandwidth) {
-            this.masterPlaylistController_.mainSegmentLoader_.bandwidth = bandwidth; // setting the bandwidth manually resets the throughput counter
-            // `count` is set to zero that current value of `rate` isn't included
-            // in the cumulative average
+            if (tech.options_ && tech.options_.playerId) {
+                const _player = videojs.getPlayer(tech.options_.playerId);
+                this.player_ = _player;
+            }
+            this.tech_ = tech;
+            this.source_ = source;
+            this.stats = {};
+            this.ignoreNextSeekingEvent_ = false;
+            this.setOptions_();
+            if (this.options_.overrideNative && tech.overrideNativeAudioTracks && tech.overrideNativeVideoTracks) {
+                tech.overrideNativeAudioTracks(true);
+                tech.overrideNativeVideoTracks(true);
+            } else if (this.options_.overrideNative && (tech.featuresNativeVideoTracks || tech.featuresNativeAudioTracks)) {
+                // overriding native VHS only works if audio tracks have been emulated
+                // error early if we're misconfigured
+                throw new Error('Overriding native VHS requires emulated tracks. ' + 'See https://git.io/vMpjB');
+            } // listen for fullscreenchange events for this player so that we
+            // can adjust our quality selection quickly
 
-            this.masterPlaylistController_.mainSegmentLoader_.throughput = {
-              rate: 0,
-              count: 0
-            };
-          }
-        },
+            this.on(document, ['fullscreenchange', 'webkitfullscreenchange', 'mozfullscreenchange', 'MSFullscreenChange'], event => {
+                const fullscreenElement = document.fullscreenElement || document.webkitFullscreenElement || document.mozFullScreenElement || document.msFullscreenElement;
+                if (fullscreenElement && fullscreenElement.contains(this.tech_.el())) {
+                    this.playlistController_.fastQualityChange_();
+                } else {
+                    // When leaving fullscreen, since the in page pixel dimensions should be smaller
+                    // than full screen, see if there should be a rendition switch down to preserve
+                    // bandwidth.
+                    this.playlistController_.checkABR_();
+                }
+            });
+            this.on(this.tech_, 'seeking', function () {
+                if (this.ignoreNextSeekingEvent_) {
+                    this.ignoreNextSeekingEvent_ = false;
+                    return;
+                }
+                this.setCurrentTime(this.tech_.currentTime());
+            });
+            this.on(this.tech_, 'error', function () {
+                // verify that the error was real and we are loaded
+                // enough to have pc loaded.
+                if (this.tech_.error() && this.playlistController_) {
+                    this.playlistController_.pauseLoading();
+                }
+            });
+            this.on(this.tech_, 'play', this.play);
+        }
+        setOptions_() {
+            // defaults
+            this.options_.withCredentials = this.options_.withCredentials || false;
+            this.options_.limitRenditionByPlayerDimensions = this.options_.limitRenditionByPlayerDimensions === false ? false : true;
+            this.options_.useDevicePixelRatio = this.options_.useDevicePixelRatio || false;
+            this.options_.useBandwidthFromLocalStorage = typeof this.source_.useBandwidthFromLocalStorage !== 'undefined' ? this.source_.useBandwidthFromLocalStorage : this.options_.useBandwidthFromLocalStorage || false;
+            this.options_.useNetworkInformationApi = this.options_.useNetworkInformationApi || false;
+            this.options_.useDtsForTimestampOffset = this.options_.useDtsForTimestampOffset || false;
+            this.options_.customTagParsers = this.options_.customTagParsers || [];
+            this.options_.customTagMappers = this.options_.customTagMappers || [];
+            this.options_.cacheEncryptionKeys = this.options_.cacheEncryptionKeys || false;
+            this.options_.llhls = this.options_.llhls === false ? false : true;
+            this.options_.bufferBasedABR = this.options_.bufferBasedABR || false;
+            if (typeof this.options_.playlistExclusionDuration !== 'number') {
+                this.options_.playlistExclusionDuration = 5 * 60;
+            }
+            if (typeof this.options_.bandwidth !== 'number') {
+                if (this.options_.useBandwidthFromLocalStorage) {
+                    const storedObject = getVhsLocalStorage();
+                    if (storedObject && storedObject.bandwidth) {
+                        this.options_.bandwidth = storedObject.bandwidth;
+                        this.tech_.trigger({
+                            type: 'usage',
+                            name: 'vhs-bandwidth-from-local-storage'
+                        });
+                    }
+                    if (storedObject && storedObject.throughput) {
+                        this.options_.throughput = storedObject.throughput;
+                        this.tech_.trigger({
+                            type: 'usage',
+                            name: 'vhs-throughput-from-local-storage'
+                        });
+                    }
+                }
+            } // if bandwidth was not set by options or pulled from local storage, start playlist
+            // selection at a reasonable bandwidth
 
+            if (typeof this.options_.bandwidth !== 'number') {
+                this.options_.bandwidth = Config.INITIAL_BANDWIDTH;
+            } // If the bandwidth number is unchanged from the initial setting
+            // then this takes precedence over the enableLowInitialPlaylist option
+
+            this.options_.enableLowInitialPlaylist = this.options_.enableLowInitialPlaylist && this.options_.bandwidth === Config.INITIAL_BANDWIDTH; // grab options passed to player.src
+
+            ['withCredentials', 'useDevicePixelRatio', 'limitRenditionByPlayerDimensions', 'bandwidth', 'customTagParsers', 'customTagMappers', 'cacheEncryptionKeys', 'playlistSelector', 'initialPlaylistSelector', 'bufferBasedABR', 'liveRangeSafeTimeDelta', 'llhls', 'useNetworkInformationApi', 'useDtsForTimestampOffset', 'exactManifestTimings', 'leastPixelDiffSelector'].forEach(option => {
+                if (typeof this.source_[option] !== 'undefined') {
+                    this.options_[option] = this.source_[option];
+                }
+            });
+            this.limitRenditionByPlayerDimensions = this.options_.limitRenditionByPlayerDimensions;
+            this.useDevicePixelRatio = this.options_.useDevicePixelRatio;
+        }
         /**
-         * `systemBandwidth` is a combination of two serial processes bit-rates. The first
-         * is the network bitrate provided by `bandwidth` and the second is the bitrate of
-         * the entire process after that - decryption, transmuxing, and appending - provided
-         * by `throughput`.
+         * called when player.src gets called, handle a new source
          *
-         * Since the two process are serial, the overall system bandwidth is given by:
-         *   sysBandwidth = 1 / (1 / bandwidth + 1 / throughput)
+         * @param {Object} src the source object to handle
          */
-        systemBandwidth: {
-          get: function get() {
-            var invBandwidth = 1 / (this.bandwidth || 1);
-            var invThroughput;
 
-            if (this.throughput > 0) {
-              invThroughput = 1 / this.throughput;
-            } else {
-              invThroughput = 0;
+        src(src, type) {
+            // do nothing if the src is falsey
+            if (!src) {
+                return;
             }
+            this.setOptions_(); // add main playlist controller options
 
-            var systemBitrate = Math.floor(1 / (invBandwidth + invThroughput));
-            return systemBitrate;
-          },
-          set: function set() {
-            videojs.log.error('The "systemBandwidth" property is read-only');
-          }
-        }
-      });
+            this.options_.src = expandDataUri(this.source_.src);
+            this.options_.tech = this.tech_;
+            this.options_.externVhs = Vhs;
+            this.options_.sourceType = simpleTypeFromSourceType(type); // Whenever we seek internally, we should update the tech
 
-      if (this.options_.bandwidth) {
-        this.bandwidth = this.options_.bandwidth;
-      }
+            this.options_.seekTo = time => {
+                this.tech_.setCurrentTime(time);
+            };
+            this.playlistController_ = new PlaylistController(this.options_);
+            const playbackWatcherOptions = merge({
+                liveRangeSafeTimeDelta: SAFE_TIME_DELTA
+            }, this.options_, {
+                seekable: () => this.seekable(),
+                media: () => this.playlistController_.media(),
+                playlistController: this.playlistController_
+            });
+            this.playbackWatcher_ = new PlaybackWatcher(playbackWatcherOptions);
+            this.playlistController_.on('error', () => {
+                const player = videojs.players[this.tech_.options_.playerId];
+                let error = this.playlistController_.error;
+                if (typeof error === 'object' && !error.code) {
+                    error.code = 3;
+                } else if (typeof error === 'string') {
+                    error = {
+                        message: error,
+                        code: 3
+                    };
+                }
+                player.error(error);
+            });
+            const defaultSelector = this.options_.bufferBasedABR ? Vhs.movingAverageBandwidthSelector(0.55) : Vhs.STANDARD_PLAYLIST_SELECTOR; // `this` in selectPlaylist should be the VhsHandler for backwards
+            // compatibility with < v2
 
-      if (this.options_.throughput) {
-        this.throughput = this.options_.throughput;
-      }
+            this.playlistController_.selectPlaylist = this.selectPlaylist ? this.selectPlaylist.bind(this) : defaultSelector.bind(this);
+            this.playlistController_.selectInitialPlaylist = Vhs.INITIAL_PLAYLIST_SELECTOR.bind(this); // re-expose some internal objects for backwards compatibility with < v2
 
-      Object.defineProperties(this.stats, {
-        bandwidth: {
-          get: function get() {
-            return _this3.bandwidth || 0;
-          },
-          enumerable: true
-        },
-        mediaRequests: {
-          get: function get() {
-            return _this3.masterPlaylistController_.mediaRequests_() || 0;
-          },
-          enumerable: true
-        },
-        mediaRequestsAborted: {
-          get: function get() {
-            return _this3.masterPlaylistController_.mediaRequestsAborted_() || 0;
-          },
-          enumerable: true
-        },
-        mediaRequestsTimedout: {
-          get: function get() {
-            return _this3.masterPlaylistController_.mediaRequestsTimedout_() || 0;
-          },
-          enumerable: true
-        },
-        mediaRequestsErrored: {
-          get: function get() {
-            return _this3.masterPlaylistController_.mediaRequestsErrored_() || 0;
-          },
-          enumerable: true
-        },
-        mediaTransferDuration: {
-          get: function get() {
-            return _this3.masterPlaylistController_.mediaTransferDuration_() || 0;
-          },
-          enumerable: true
-        },
-        mediaBytesTransferred: {
-          get: function get() {
-            return _this3.masterPlaylistController_.mediaBytesTransferred_() || 0;
-          },
-          enumerable: true
-        },
-        mediaSecondsLoaded: {
-          get: function get() {
-            return _this3.masterPlaylistController_.mediaSecondsLoaded_() || 0;
-          },
-          enumerable: true
-        },
-        mediaAppends: {
-          get: function get() {
-            return _this3.masterPlaylistController_.mediaAppends_() || 0;
-          },
-          enumerable: true
-        },
-        mainAppendsToLoadedData: {
-          get: function get() {
-            return _this3.masterPlaylistController_.mainAppendsToLoadedData_() || 0;
-          },
-          enumerable: true
-        },
-        audioAppendsToLoadedData: {
-          get: function get() {
-            return _this3.masterPlaylistController_.audioAppendsToLoadedData_() || 0;
-          },
-          enumerable: true
-        },
-        appendsToLoadedData: {
-          get: function get() {
-            return _this3.masterPlaylistController_.appendsToLoadedData_() || 0;
-          },
-          enumerable: true
-        },
-        timeToLoadedData: {
-          get: function get() {
-            return _this3.masterPlaylistController_.timeToLoadedData_() || 0;
-          },
-          enumerable: true
-        },
-        buffered: {
-          get: function get() {
-            return timeRangesToArray(_this3.tech_.buffered());
-          },
-          enumerable: true
-        },
-        currentTime: {
-          get: function get() {
-            return _this3.tech_.currentTime();
-          },
-          enumerable: true
-        },
-        currentSource: {
-          get: function get() {
-            return _this3.tech_.currentSource_;
-          },
-          enumerable: true
-        },
-        currentTech: {
-          get: function get() {
-            return _this3.tech_.name_;
-          },
-          enumerable: true
-        },
-        duration: {
-          get: function get() {
-            return _this3.tech_.duration();
-          },
-          enumerable: true
-        },
-        master: {
-          get: function get() {
-            return _this3.playlists.master;
-          },
-          enumerable: true
-        },
-        playerDimensions: {
-          get: function get() {
-            return _this3.tech_.currentDimensions();
-          },
-          enumerable: true
-        },
-        seekable: {
-          get: function get() {
-            return timeRangesToArray(_this3.tech_.seekable());
-          },
-          enumerable: true
-        },
-        timestamp: {
-          get: function get() {
-            return Date.now();
-          },
-          enumerable: true
-        },
-        videoPlaybackQuality: {
-          get: function get() {
-            return _this3.tech_.getVideoPlaybackQuality();
-          },
-          enumerable: true
-        }
-      });
-      this.tech_.one('canplay', this.masterPlaylistController_.setupFirstPlay.bind(this.masterPlaylistController_));
-      this.tech_.on('bandwidthupdate', function () {
-        if (_this3.options_.useBandwidthFromLocalStorage) {
-          updateVhsLocalStorage({
-            bandwidth: _this3.bandwidth,
-            throughput: Math.round(_this3.throughput)
-          });
-        }
-      });
-      this.masterPlaylistController_.on('selectedinitialmedia', function () {
-        // Add the manual rendition mix-in to VhsHandler
-        renditionSelectionMixin(_this3);
-      });
-      this.masterPlaylistController_.sourceUpdater_.on('createdsourcebuffers', function () {
-        _this3.setupEme_();
-      }); // the bandwidth of the primary segment loader is our best
-      // estimate of overall bandwidth
+            this.playlists = this.playlistController_.mainPlaylistLoader_;
+            this.mediaSource = this.playlistController_.mediaSource; // Proxy assignment of some properties to the main playlist
+            // controller. Using a custom property for backwards compatibility
+            // with < v2
 
-      this.on(this.masterPlaylistController_, 'progress', function () {
-        this.tech_.trigger('progress');
-      }); // In the live case, we need to ignore the very first `seeking` event since
-      // that will be the result of the seek-to-live behavior
+            Object.defineProperties(this, {
+                selectPlaylist: {
+                    get() {
+                        return this.playlistController_.selectPlaylist;
+                    },
+                    set(selectPlaylist) {
+                        this.playlistController_.selectPlaylist = selectPlaylist.bind(this);
+                    }
+                },
+                throughput: {
+                    get() {
+                        return this.playlistController_.mainSegmentLoader_.throughput.rate;
+                    },
+                    set(throughput) {
+                        this.playlistController_.mainSegmentLoader_.throughput.rate = throughput; // By setting `count` to 1 the throughput value becomes the starting value
+                        // for the cumulative average
 
-      this.on(this.masterPlaylistController_, 'firstplay', function () {
-        this.ignoreNextSeekingEvent_ = true;
-      });
-      this.setupQualityLevels_(); // do nothing if the tech has been disposed already
-      // this can occur if someone sets the src in player.ready(), for instance
+                        this.playlistController_.mainSegmentLoader_.throughput.count = 1;
+                    }
+                },
+                bandwidth: {
+                    get() {
+                        let playerBandwidthEst = this.playlistController_.mainSegmentLoader_.bandwidth;
+                        const networkInformation = window.navigator.connection || window.navigator.mozConnection || window.navigator.webkitConnection;
+                        const tenMbpsAsBitsPerSecond = 10e6;
+                        if (this.options_.useNetworkInformationApi && networkInformation) {
+                            // downlink returns Mbps
+                            // https://developer.mozilla.org/en-US/docs/Web/API/NetworkInformation/downlink
+                            const networkInfoBandwidthEstBitsPerSec = networkInformation.downlink * 1000 * 1000; // downlink maxes out at 10 Mbps. In the event that both networkInformationApi and the player
+                            // estimate a bandwidth greater than 10 Mbps, use the larger of the two estimates to ensure that
+                            // high quality streams are not filtered out.
 
-      if (!this.tech_.el()) {
-        return;
-      }
+                            if (networkInfoBandwidthEstBitsPerSec >= tenMbpsAsBitsPerSecond && playerBandwidthEst >= tenMbpsAsBitsPerSecond) {
+                                playerBandwidthEst = Math.max(playerBandwidthEst, networkInfoBandwidthEstBitsPerSec);
+                            } else {
+                                playerBandwidthEst = networkInfoBandwidthEstBitsPerSec;
+                            }
+                        }
+                        return playerBandwidthEst;
+                    },
+                    set(bandwidth) {
+                        this.playlistController_.mainSegmentLoader_.bandwidth = bandwidth; // setting the bandwidth manually resets the throughput counter
+                        // `count` is set to zero that current value of `rate` isn't included
+                        // in the cumulative average
 
-      this.mediaSourceUrl_ = window.URL.createObjectURL(this.masterPlaylistController_.mediaSource);
-      this.tech_.src(this.mediaSourceUrl_);
-    };
-
-    _proto.createKeySessions_ = function createKeySessions_() {
-      var _this4 = this;
-
-      var audioPlaylistLoader = this.masterPlaylistController_.mediaTypes_.AUDIO.activePlaylistLoader;
-      this.logger_('waiting for EME key session creation');
-      waitForKeySessionCreation({
-        player: this.player_,
-        sourceKeySystems: this.source_.keySystems,
-        audioMedia: audioPlaylistLoader && audioPlaylistLoader.media(),
-        mainPlaylists: this.playlists.master.playlists
-      }).then(function () {
-        _this4.logger_('created EME key session');
-
-        _this4.masterPlaylistController_.sourceUpdater_.initializedEme();
-      })["catch"](function (err) {
-        _this4.logger_('error while creating EME key session', err);
-
-        _this4.player_.error({
-          message: 'Failed to initialize media keys for EME',
-          code: 3
-        });
-      });
-    };
-
-    _proto.handleWaitingForKey_ = function handleWaitingForKey_() {
-      // If waitingforkey is fired, it's possible that the data that's necessary to retrieve
-      // the key is in the manifest. While this should've happened on initial source load, it
-      // may happen again in live streams where the keys change, and the manifest info
-      // reflects the update.
-      //
-      // Because videojs-contrib-eme compares the PSSH data we send to that of PSSH data it's
-      // already requested keys for, we don't have to worry about this generating extraneous
-      // requests.
-      this.logger_('waitingforkey fired, attempting to create any new key sessions');
-      this.createKeySessions_();
-    }
-    /**
-     * If necessary and EME is available, sets up EME options and waits for key session
-     * creation.
-     *
-     * This function also updates the source updater so taht it can be used, as for some
-     * browsers, EME must be configured before content is appended (if appending unencrypted
-     * content before encrypted content).
-     */
-    ;
-
-    _proto.setupEme_ = function setupEme_() {
-      var _this5 = this;
-
-      var audioPlaylistLoader = this.masterPlaylistController_.mediaTypes_.AUDIO.activePlaylistLoader;
-      var didSetupEmeOptions = setupEmeOptions({
-        player: this.player_,
-        sourceKeySystems: this.source_.keySystems,
-        media: this.playlists.media(),
-        audioMedia: audioPlaylistLoader && audioPlaylistLoader.media()
-      });
-      this.player_.tech_.on('keystatuschange', function (e) {
-        if (e.status !== 'output-restricted') {
-          return;
-        }
-
-        var masterPlaylist = _this5.masterPlaylistController_.master();
-
-        if (!masterPlaylist || !masterPlaylist.playlists) {
-          return;
-        }
-
-        var excludedHDPlaylists = []; // Assume all HD streams are unplayable and exclude them from ABR selection
-
-        masterPlaylist.playlists.forEach(function (playlist) {
-          if (playlist && playlist.attributes && playlist.attributes.RESOLUTION && playlist.attributes.RESOLUTION.height >= 720) {
-            if (!playlist.excludeUntil || playlist.excludeUntil < Infinity) {
-              playlist.excludeUntil = Infinity;
-              excludedHDPlaylists.push(playlist);
+                        this.playlistController_.mainSegmentLoader_.throughput = {
+                            rate: 0,
+                            count: 0
+                        };
+                    }
+                },
+                /**
+                 * `systemBandwidth` is a combination of two serial processes bit-rates. The first
+                 * is the network bitrate provided by `bandwidth` and the second is the bitrate of
+                 * the entire process after that - decryption, transmuxing, and appending - provided
+                 * by `throughput`.
+                 *
+                 * Since the two process are serial, the overall system bandwidth is given by:
+                 *   sysBandwidth = 1 / (1 / bandwidth + 1 / throughput)
+                 */
+                systemBandwidth: {
+                    get() {
+                        const invBandwidth = 1 / (this.bandwidth || 1);
+                        let invThroughput;
+                        if (this.throughput > 0) {
+                            invThroughput = 1 / this.throughput;
+                        } else {
+                            invThroughput = 0;
+                        }
+                        const systemBitrate = Math.floor(1 / (invBandwidth + invThroughput));
+                        return systemBitrate;
+                    },
+                    set() {
+                        videojs.log.error('The "systemBandwidth" property is read-only');
+                    }
+                }
+            });
+            if (this.options_.bandwidth) {
+                this.bandwidth = this.options_.bandwidth;
             }
-          }
-        });
+            if (this.options_.throughput) {
+                this.throughput = this.options_.throughput;
+            }
+            Object.defineProperties(this.stats, {
+                bandwidth: {
+                    get: () => this.bandwidth || 0,
+                    enumerable: true
+                },
+                mediaRequests: {
+                    get: () => this.playlistController_.mediaRequests_() || 0,
+                    enumerable: true
+                },
+                mediaRequestsAborted: {
+                    get: () => this.playlistController_.mediaRequestsAborted_() || 0,
+                    enumerable: true
+                },
+                mediaRequestsTimedout: {
+                    get: () => this.playlistController_.mediaRequestsTimedout_() || 0,
+                    enumerable: true
+                },
+                mediaRequestsErrored: {
+                    get: () => this.playlistController_.mediaRequestsErrored_() || 0,
+                    enumerable: true
+                },
+                mediaTransferDuration: {
+                    get: () => this.playlistController_.mediaTransferDuration_() || 0,
+                    enumerable: true
+                },
+                mediaBytesTransferred: {
+                    get: () => this.playlistController_.mediaBytesTransferred_() || 0,
+                    enumerable: true
+                },
+                mediaSecondsLoaded: {
+                    get: () => this.playlistController_.mediaSecondsLoaded_() || 0,
+                    enumerable: true
+                },
+                mediaAppends: {
+                    get: () => this.playlistController_.mediaAppends_() || 0,
+                    enumerable: true
+                },
+                mainAppendsToLoadedData: {
+                    get: () => this.playlistController_.mainAppendsToLoadedData_() || 0,
+                    enumerable: true
+                },
+                audioAppendsToLoadedData: {
+                    get: () => this.playlistController_.audioAppendsToLoadedData_() || 0,
+                    enumerable: true
+                },
+                appendsToLoadedData: {
+                    get: () => this.playlistController_.appendsToLoadedData_() || 0,
+                    enumerable: true
+                },
+                timeToLoadedData: {
+                    get: () => this.playlistController_.timeToLoadedData_() || 0,
+                    enumerable: true
+                },
+                buffered: {
+                    get: () => timeRangesToArray(this.tech_.buffered()),
+                    enumerable: true
+                },
+                currentTime: {
+                    get: () => this.tech_.currentTime(),
+                    enumerable: true
+                },
+                currentSource: {
+                    get: () => this.tech_.currentSource_,
+                    enumerable: true
+                },
+                currentTech: {
+                    get: () => this.tech_.name_,
+                    enumerable: true
+                },
+                duration: {
+                    get: () => this.tech_.duration(),
+                    enumerable: true
+                },
+                main: {
+                    get: () => this.playlists.main,
+                    enumerable: true
+                },
+                playerDimensions: {
+                    get: () => this.tech_.currentDimensions(),
+                    enumerable: true
+                },
+                seekable: {
+                    get: () => timeRangesToArray(this.tech_.seekable()),
+                    enumerable: true
+                },
+                timestamp: {
+                    get: () => Date.now(),
+                    enumerable: true
+                },
+                videoPlaybackQuality: {
+                    get: () => this.tech_.getVideoPlaybackQuality(),
+                    enumerable: true
+                }
+            });
+            this.tech_.one('canplay', this.playlistController_.setupFirstPlay.bind(this.playlistController_));
+            this.tech_.on('bandwidthupdate', () => {
+                if (this.options_.useBandwidthFromLocalStorage) {
+                    updateVhsLocalStorage({
+                        bandwidth: this.bandwidth,
+                        throughput: Math.round(this.throughput)
+                    });
+                }
+            });
+            this.playlistController_.on('selectedinitialmedia', () => {
+                // Add the manual rendition mix-in to VhsHandler
+                renditionSelectionMixin(this);
+            });
+            this.playlistController_.sourceUpdater_.on('createdsourcebuffers', () => {
+                this.setupEme_();
+            }); // the bandwidth of the primary segment loader is our best
+            // estimate of overall bandwidth
 
-        if (excludedHDPlaylists.length) {
-          var _videojs$log;
+            this.on(this.playlistController_, 'progress', function () {
+                this.tech_.trigger('progress');
+            }); // In the live case, we need to ignore the very first `seeking` event since
+            // that will be the result of the seek-to-live behavior
 
-          (_videojs$log = videojs.log).warn.apply(_videojs$log, ['DRM keystatus changed to "output-restricted." Removing the following HD playlists ' + 'that will most likely fail to play and clearing the buffer. ' + 'This may be due to HDCP restrictions on the stream and the capabilities of the current device.'].concat(excludedHDPlaylists)); // Clear the buffer before switching playlists, since it may already contain unplayable segments
+            this.on(this.playlistController_, 'firstplay', function () {
+                this.ignoreNextSeekingEvent_ = true;
+            });
+            this.setupQualityLevels_(); // do nothing if the tech has been disposed already
+            // this can occur if someone sets the src in player.ready(), for instance
 
-
-          _this5.masterPlaylistController_.fastQualityChange_();
+            if (!this.tech_.el()) {
+                return;
+            }
+            this.mediaSourceUrl_ = window.URL.createObjectURL(this.playlistController_.mediaSource);
+            this.tech_.src(this.mediaSourceUrl_);
         }
-      });
-      this.handleWaitingForKey_ = this.handleWaitingForKey_.bind(this);
-      this.player_.tech_.on('waitingforkey', this.handleWaitingForKey_); // In IE11 this is too early to initialize media keys, and IE11 does not support
-      // promises.
+        createKeySessions_() {
+            const audioPlaylistLoader = this.playlistController_.mediaTypes_.AUDIO.activePlaylistLoader;
+            this.logger_('waiting for EME key session creation');
+            waitForKeySessionCreation({
+                player: this.player_,
+                sourceKeySystems: this.source_.keySystems,
+                audioMedia: audioPlaylistLoader && audioPlaylistLoader.media(),
+                mainPlaylists: this.playlists.main.playlists
+            }).then(() => {
+                this.logger_('created EME key session');
+                this.playlistController_.sourceUpdater_.initializedEme();
+            }).catch(err => {
+                this.logger_('error while creating EME key session', err);
+                this.player_.error({
+                    message: 'Failed to initialize media keys for EME',
+                    code: 3
+                });
+            });
+        }
+        handleWaitingForKey_() {
+            // If waitingforkey is fired, it's possible that the data that's necessary to retrieve
+            // the key is in the manifest. While this should've happened on initial source load, it
+            // may happen again in live streams where the keys change, and the manifest info
+            // reflects the update.
+            //
+            // Because videojs-contrib-eme compares the PSSH data we send to that of PSSH data it's
+            // already requested keys for, we don't have to worry about this generating extraneous
+            // requests.
+            this.logger_('waitingforkey fired, attempting to create any new key sessions');
+            this.createKeySessions_();
+        }
+        /**
+         * If necessary and EME is available, sets up EME options and waits for key session
+         * creation.
+         *
+         * This function also updates the source updater so taht it can be used, as for some
+         * browsers, EME must be configured before content is appended (if appending unencrypted
+         * content before encrypted content).
+         */
 
-      if (videojs.browser.IE_VERSION === 11 || !didSetupEmeOptions) {
-        // If EME options were not set up, we've done all we could to initialize EME.
-        this.masterPlaylistController_.sourceUpdater_.initializedEme();
-        return;
-      }
+        setupEme_() {
+            const audioPlaylistLoader = this.playlistController_.mediaTypes_.AUDIO.activePlaylistLoader;
+            const didSetupEmeOptions = setupEmeOptions({
+                player: this.player_,
+                sourceKeySystems: this.source_.keySystems,
+                media: this.playlists.media(),
+                audioMedia: audioPlaylistLoader && audioPlaylistLoader.media()
+            });
+            this.player_.tech_.on('keystatuschange', e => {
+                if (e.status !== 'output-restricted') {
+                    return;
+                }
+                const mainPlaylist = this.playlistController_.main();
+                if (!mainPlaylist || !mainPlaylist.playlists) {
+                    return;
+                }
+                const excludedHDPlaylists = []; // Assume all HD streams are unplayable and exclude them from ABR selection
 
-      this.createKeySessions_();
+                mainPlaylist.playlists.forEach(playlist => {
+                    if (playlist && playlist.attributes && playlist.attributes.RESOLUTION && playlist.attributes.RESOLUTION.height >= 720) {
+                        if (!playlist.excludeUntil || playlist.excludeUntil < Infinity) {
+                            playlist.excludeUntil = Infinity;
+                            excludedHDPlaylists.push(playlist);
+                        }
+                    }
+                });
+                if (excludedHDPlaylists.length) {
+                    videojs.log.warn('DRM keystatus changed to "output-restricted." Removing the following HD playlists ' + 'that will most likely fail to play and clearing the buffer. ' + 'This may be due to HDCP restrictions on the stream and the capabilities of the current device.', ...excludedHDPlaylists); // Clear the buffer before switching playlists, since it may already contain unplayable segments
+
+                    this.playlistController_.fastQualityChange_();
+                }
+            });
+            this.handleWaitingForKey_ = this.handleWaitingForKey_.bind(this);
+            this.player_.tech_.on('waitingforkey', this.handleWaitingForKey_); // In IE11 this is too early to initialize media keys, and IE11 does not support
+            // promises.
+
+            if (videojs.browser.IE_VERSION === 11 || !didSetupEmeOptions) {
+                // If EME options were not set up, we've done all we could to initialize EME.
+                this.playlistController_.sourceUpdater_.initializedEme();
+                return;
+            }
+            this.createKeySessions_();
+        }
+        /**
+         * Initializes the quality levels and sets listeners to update them.
+         *
+         * @method setupQualityLevels_
+         * @private
+         */
+
+        setupQualityLevels_() {
+            const player = videojs.players[this.tech_.options_.playerId]; // if there isn't a player or there isn't a qualityLevels plugin
+            // or qualityLevels_ listeners have already been setup, do nothing.
+
+            if (!player || !player.qualityLevels || this.qualityLevels_) {
+                return;
+            }
+            this.qualityLevels_ = player.qualityLevels();
+            this.playlistController_.on('selectedinitialmedia', () => {
+                handleVhsLoadedMetadata(this.qualityLevels_, this);
+            });
+            this.playlists.on('mediachange', () => {
+                handleVhsMediaChange(this.qualityLevels_, this.playlists);
+            });
+        }
+        /**
+         * return the version
+         */
+
+        static version() {
+            return {
+                '@videojs/http-streaming': version$4,
+                'mux.js': version$3,
+                'mpd-parser': version$2,
+                'm3u8-parser': version$1,
+                'aes-decrypter': version
+            };
+        }
+        /**
+         * return the version
+         */
+
+        version() {
+            return this.constructor.version();
+        }
+        canChangeType() {
+            return SourceUpdater.canChangeType();
+        }
+        /**
+         * Begin playing the video.
+         */
+
+        play() {
+            this.playlistController_.play();
+        }
+        /**
+         * a wrapper around the function in PlaylistController
+         */
+
+        setCurrentTime(currentTime) {
+            this.playlistController_.setCurrentTime(currentTime);
+        }
+        /**
+         * a wrapper around the function in PlaylistController
+         */
+
+        duration() {
+            return this.playlistController_.duration();
+        }
+        /**
+         * a wrapper around the function in PlaylistController
+         */
+
+        seekable() {
+            return this.playlistController_.seekable();
+        }
+        /**
+         * Abort all outstanding work and cleanup.
+         */
+
+        dispose() {
+            if (this.playbackWatcher_) {
+                this.playbackWatcher_.dispose();
+            }
+            if (this.playlistController_) {
+                this.playlistController_.dispose();
+            }
+            if (this.qualityLevels_) {
+                this.qualityLevels_.dispose();
+            }
+            if (this.tech_ && this.tech_.vhs) {
+                delete this.tech_.vhs;
+            }
+            if (this.mediaSourceUrl_ && window.URL.revokeObjectURL) {
+                window.URL.revokeObjectURL(this.mediaSourceUrl_);
+                this.mediaSourceUrl_ = null;
+            }
+            if (this.tech_) {
+                this.tech_.off('waitingforkey', this.handleWaitingForKey_);
+            }
+            super.dispose();
+        }
+        convertToProgramTime(time, callback) {
+            return getProgramTime({
+                playlist: this.playlistController_.media(),
+                time,
+                callback
+            });
+        } // the player must be playing before calling this
+
+        seekToProgramTime(programTime, callback, pauseAfterSeek = true, retryCount = 2) {
+            return seekToProgramTime({
+                programTime,
+                playlist: this.playlistController_.media(),
+                retryCount,
+                pauseAfterSeek,
+                seekTo: this.options_.seekTo,
+                tech: this.options_.tech,
+                callback
+            });
+        }
     }
     /**
-     * Initializes the quality levels and sets listeners to update them.
-     *
-     * @method setupQualityLevels_
-     * @private
+     * The Source Handler object, which informs video.js what additional
+     * MIME types are supported and sets up playback. It is registered
+     * automatically to the appropriate tech based on the capabilities of
+     * the browser it is running in. It is not necessary to use or modify
+     * this object in normal usage.
      */
-    ;
 
-    _proto.setupQualityLevels_ = function setupQualityLevels_() {
-      var _this6 = this;
-
-      var player = videojs.players[this.tech_.options_.playerId]; // if there isn't a player or there isn't a qualityLevels plugin
-      // or qualityLevels_ listeners have already been setup, do nothing.
-
-      if (!player || !player.qualityLevels || this.qualityLevels_) {
-        return;
-      }
-
-      this.qualityLevels_ = player.qualityLevels();
-      this.masterPlaylistController_.on('selectedinitialmedia', function () {
-        handleVhsLoadedMetadata(_this6.qualityLevels_, _this6);
-      });
-      this.playlists.on('mediachange', function () {
-        handleVhsMediaChange(_this6.qualityLevels_, _this6.playlists);
-      });
-    }
-    /**
-     * return the version
-     */
-    ;
-
-    VhsHandler.version = function version$5() {
-      return {
-        '@videojs/http-streaming': version$4,
-        'mux.js': version$3,
-        'mpd-parser': version$2,
-        'm3u8-parser': version$1,
-        'aes-decrypter': version
-      };
-    }
-    /**
-     * return the version
-     */
-    ;
-
-    _proto.version = function version() {
-      return this.constructor.version();
-    };
-
-    _proto.canChangeType = function canChangeType() {
-      return SourceUpdater.canChangeType();
-    }
-    /**
-     * Begin playing the video.
-     */
-    ;
-
-    _proto.play = function play() {
-      this.masterPlaylistController_.play();
-    }
-    /**
-     * a wrapper around the function in MasterPlaylistController
-     */
-    ;
-
-    _proto.setCurrentTime = function setCurrentTime(currentTime) {
-      this.masterPlaylistController_.setCurrentTime(currentTime);
-    }
-    /**
-     * a wrapper around the function in MasterPlaylistController
-     */
-    ;
-
-    _proto.duration = function duration() {
-      return this.masterPlaylistController_.duration();
-    }
-    /**
-     * a wrapper around the function in MasterPlaylistController
-     */
-    ;
-
-    _proto.seekable = function seekable() {
-      return this.masterPlaylistController_.seekable();
-    }
-    /**
-     * Abort all outstanding work and cleanup.
-     */
-    ;
-
-    _proto.dispose = function dispose() {
-      if (this.playbackWatcher_) {
-        this.playbackWatcher_.dispose();
-      }
-
-      if (this.masterPlaylistController_) {
-        this.masterPlaylistController_.dispose();
-      }
-
-      if (this.qualityLevels_) {
-        this.qualityLevels_.dispose();
-      }
-
-      if (this.player_) {
-        delete this.player_.vhs;
-        delete this.player_.dash;
-        delete this.player_.hls;
-      }
-
-      if (this.tech_ && this.tech_.vhs) {
-        delete this.tech_.vhs;
-      } // don't check this.tech_.hls as it will log a deprecated warning
-
-
-      if (this.tech_) {
-        delete this.tech_.hls;
-      }
-
-      if (this.mediaSourceUrl_ && window.URL.revokeObjectURL) {
-        window.URL.revokeObjectURL(this.mediaSourceUrl_);
-        this.mediaSourceUrl_ = null;
-      }
-
-      if (this.tech_) {
-        this.tech_.off('waitingforkey', this.handleWaitingForKey_);
-      }
-
-      _Component.prototype.dispose.call(this);
-    };
-
-    _proto.convertToProgramTime = function convertToProgramTime(time, callback) {
-      return getProgramTime({
-        playlist: this.masterPlaylistController_.media(),
-        time: time,
-        callback: callback
-      });
-    } // the player must be playing before calling this
-    ;
-
-    _proto.seekToProgramTime = function seekToProgramTime$1(programTime, callback, pauseAfterSeek, retryCount) {
-      if (pauseAfterSeek === void 0) {
-        pauseAfterSeek = true;
-      }
-
-      if (retryCount === void 0) {
-        retryCount = 2;
-      }
-
-      return seekToProgramTime({
-        programTime: programTime,
-        playlist: this.masterPlaylistController_.media(),
-        retryCount: retryCount,
-        pauseAfterSeek: pauseAfterSeek,
-        seekTo: this.options_.seekTo,
-        tech: this.options_.tech,
-        callback: callback
-      });
-    };
-
-    return VhsHandler;
-  }(Component);
-  /**
-   * The Source Handler object, which informs video.js what additional
-   * MIME types are supported and sets up playback. It is registered
-   * automatically to the appropriate tech based on the capabilities of
-   * the browser it is running in. It is not necessary to use or modify
-   * this object in normal usage.
-   */
-
-
-  var VhsSourceHandler = {
-    name: 'videojs-http-streaming',
-    VERSION: version$4,
-    canHandleSource: function canHandleSource(srcObj, options) {
-      if (options === void 0) {
-        options = {};
-      }
-
-      var localOptions = videojs.mergeOptions(videojs.options, options);
-      return VhsSourceHandler.canPlayType(srcObj.type, localOptions);
-    },
-    handleSource: function handleSource(source, tech, options) {
-      if (options === void 0) {
-        options = {};
-      }
-
-      var localOptions = videojs.mergeOptions(videojs.options, options);
-      tech.vhs = new VhsHandler(source, tech, localOptions);
-
-      if (!videojs.hasOwnProperty('hls')) {
-        Object.defineProperty(tech, 'hls', {
-          get: function get() {
-            videojs.log.warn('player.tech().hls is deprecated. Use player.tech().vhs instead.');
+    const VhsSourceHandler = {
+        name: 'videojs-http-streaming',
+        VERSION: version$4,
+        canHandleSource(srcObj, options = {}) {
+            const localOptions = merge(videojs.options, options);
+            return VhsSourceHandler.canPlayType(srcObj.type, localOptions);
+        },
+        handleSource(source, tech, options = {}) {
+            const localOptions = merge(videojs.options, options);
+            tech.vhs = new VhsHandler(source, tech, localOptions);
+            tech.vhs.xhr = xhrFactory();
+            tech.vhs.src(source.src, source.type);
             return tech.vhs;
-          },
-          configurable: true
-        });
-      }
+        },
+        canPlayType(type, options) {
+            const simpleType = simpleTypeFromSourceType(type);
+            if (!simpleType) {
+                return '';
+            }
+            const overrideNative = VhsSourceHandler.getOverrideNative(options);
+            const supportsTypeNatively = Vhs.supportsTypeNatively(simpleType);
+            const canUseMsePlayback = !supportsTypeNatively || overrideNative;
+            return canUseMsePlayback ? 'maybe' : '';
+        },
+        getOverrideNative(options = {}) {
+            const {
+                vhs = {}
+            } = options;
+            const defaultOverrideNative = !(videojs.browser.IS_ANY_SAFARI || videojs.browser.IS_IOS);
+            const {
+                overrideNative = defaultOverrideNative
+            } = vhs;
+            return overrideNative;
+        }
+    };
+    /**
+     * Check to see if the native MediaSource object exists and supports
+     * an MP4 container with both H.264 video and AAC-LC audio.
+     *
+     * @return {boolean} if  native media sources are supported
+     */
 
-      tech.vhs.xhr = xhrFactory();
-      tech.vhs.src(source.src, source.type);
-      return tech.vhs;
-    },
-    canPlayType: function canPlayType(type, options) {
-      if (options === void 0) {
-        options = {};
-      }
+    const supportsNativeMediaSources = () => {
+        return browserSupportsCodec('avc1.4d400d,mp4a.40.2');
+    }; // register source handlers with the appropriate techs
 
-      var _videojs$mergeOptions = videojs.mergeOptions(videojs.options, options),
-          _videojs$mergeOptions2 = _videojs$mergeOptions.vhs;
-
-      _videojs$mergeOptions2 = _videojs$mergeOptions2 === void 0 ? {} : _videojs$mergeOptions2;
-      var _videojs$mergeOptions3 = _videojs$mergeOptions2.overrideNative,
-          overrideNative = _videojs$mergeOptions3 === void 0 ? !videojs.browser.IS_ANY_SAFARI : _videojs$mergeOptions3,
-          _videojs$mergeOptions4 = _videojs$mergeOptions.hls;
-      _videojs$mergeOptions4 = _videojs$mergeOptions4 === void 0 ? {} : _videojs$mergeOptions4;
-      var _videojs$mergeOptions5 = _videojs$mergeOptions4.overrideNative,
-          legacyOverrideNative = _videojs$mergeOptions5 === void 0 ? false : _videojs$mergeOptions5;
-      var supportedType = simpleTypeFromSourceType(type);
-      var canUseMsePlayback = supportedType && (!Vhs.supportsTypeNatively(supportedType) || legacyOverrideNative || overrideNative);
-      return canUseMsePlayback ? 'maybe' : '';
+    if (supportsNativeMediaSources()) {
+        videojs.getTech('Html5').registerSourceHandler(VhsSourceHandler, 0);
+    }
+    videojs.VhsHandler = VhsHandler;
+    videojs.VhsSourceHandler = VhsSourceHandler;
+    videojs.Vhs = Vhs;
+    if (!videojs.use) {
+        videojs.registerComponent('Vhs', Vhs);
+    }
+    videojs.options.vhs = videojs.options.vhs || {};
+    if (!videojs.getPlugin || !videojs.getPlugin('reloadSourceOnError')) {
+        videojs.registerPlugin('reloadSourceOnError', reloadSourceOnError);
     }
-  };
-  /**
-   * Check to see if the native MediaSource object exists and supports
-   * an MP4 container with both H.264 video and AAC-LC audio.
-   *
-   * @return {boolean} if  native media sources are supported
-   */
 
-  var supportsNativeMediaSources = function supportsNativeMediaSources() {
-    return browserSupportsCodec('avc1.4d400d,mp4a.40.2');
-  }; // register source handlers with the appropriate techs
+    return videojs;
 
-
-  if (supportsNativeMediaSources()) {
-    videojs.getTech('Html5').registerSourceHandler(VhsSourceHandler, 0);
-  }
-
-  videojs.VhsHandler = VhsHandler;
-  Object.defineProperty(videojs, 'HlsHandler', {
-    get: function get() {
-      videojs.log.warn('videojs.HlsHandler is deprecated. Use videojs.VhsHandler instead.');
-      return VhsHandler;
-    },
-    configurable: true
-  });
-  videojs.VhsSourceHandler = VhsSourceHandler;
-  Object.defineProperty(videojs, 'HlsSourceHandler', {
-    get: function get() {
-      videojs.log.warn('videojs.HlsSourceHandler is deprecated. ' + 'Use videojs.VhsSourceHandler instead.');
-      return VhsSourceHandler;
-    },
-    configurable: true
-  });
-  videojs.Vhs = Vhs;
-  Object.defineProperty(videojs, 'Hls', {
-    get: function get() {
-      videojs.log.warn('videojs.Hls is deprecated. Use videojs.Vhs instead.');
-      return Vhs;
-    },
-    configurable: true
-  });
-
-  if (!videojs.use) {
-    videojs.registerComponent('Hls', Vhs);
-    videojs.registerComponent('Vhs', Vhs);
-  }
-
-  videojs.options.vhs = videojs.options.vhs || {};
-  videojs.options.hls = videojs.options.hls || {};
-
-  if (!videojs.getPlugin || !videojs.getPlugin('reloadSourceOnError')) {
-    var registerPlugin = videojs.registerPlugin || videojs.plugin;
-    registerPlugin('reloadSourceOnError', reloadSourceOnError);
-  }
-
-  return videojs;
-
-})));
+}));
diff --git a/media/player/videojs/fonts/VideoJS.svg b/media/player/videojs/fonts/VideoJS.svg
old mode 100644
new mode 100755
index 3645f8d0479..f33af620650
--- a/media/player/videojs/fonts/VideoJS.svg
+++ b/media/player/videojs/fonts/VideoJS.svg
@@ -1,6 +1,6 @@
 <?xml version="1.0" standalone="no"?> 
 <!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd" >
-<svg xmlns="http://www.w3.org/2000/svg" preserveAspectRatio="xMinYMid meet">
+<svg xmlns="http://www.w3.org/2000/svg">
 <defs>
   <font id="VideoJS" horiz-adv-x="1792">
     <font-face font-family="VideoJS"
@@ -34,81 +34,117 @@
     <glyph glyph-name="fullscreen-exit"
       unicode="&#xF109;"
       horiz-adv-x="1792" d=" M373.3333333333334 597.3333333333333H597.3333333333334V373.3333333333333H746.6666666666667V746.6666666666665H373.3333333333334V597.3333333333333zM597.3333333333334 1194.6666666666665H373.3333333333334V1045.3333333333333H746.6666666666667V1418.6666666666665H597.3333333333334V1194.6666666666665zM1045.3333333333335 373.3333333333333H1194.6666666666667V597.3333333333333H1418.6666666666667V746.6666666666665H1045.3333333333335V373.3333333333333zM1194.6666666666667 1194.6666666666665V1418.6666666666665H1045.3333333333335V1045.3333333333333H1418.6666666666667V1194.6666666666665H1194.6666666666667z" />
-    <glyph glyph-name="square"
-      unicode="&#xF10A;"
-      horiz-adv-x="1792" d=" M1344 1493.3333333333333H448C365.4933333333334 1493.3333333333333 298.6666666666667 1426.5066666666667 298.6666666666667 1344V448C298.6666666666667 365.4933333333331 365.4933333333334 298.6666666666665 448 298.6666666666665H1344C1426.506666666667 298.6666666666665 1493.3333333333335 365.4933333333331 1493.3333333333335 448V1344C1493.3333333333335 1426.5066666666667 1426.506666666667 1493.3333333333333 1344 1493.3333333333333zM1344 448H448V1344H1344V448z" />
     <glyph glyph-name="spinner"
-      unicode="&#xF10B;"
+      unicode="&#xF10A;"
       horiz-adv-x="1792" d=" M701.8666666666668 1008L1057.6533333333334 1624.3733333333334C1005.7600000000002 1635.9466666666667 951.6266666666666 1642.6666666666667 896 1642.6666666666667C716.8000000000001 1642.6666666666667 552.9066666666668 1579.5733333333333 424.1066666666667 1474.2933333333333L697.76 1000.5333333333334L701.8666666666666 1008zM1608.32 1120C1539.6266666666666 1338.4 1373.1200000000001 1512.7466666666667 1160.6933333333332 1593.3866666666668L887.4133333333334 1120H1608.32zM1627.7333333333336 1045.3333333333333H1068.48L1090.1333333333334 1008L1445.92 392C1567.6266666666668 524.9066666666668 1642.6666666666667 701.4933333333333 1642.6666666666667 896C1642.6666666666667 947.1466666666666 1637.44 997.1733333333332 1627.7333333333336 1045.3333333333333zM637.2800000000001 896L346.08 1400C224.3733333333333 1267.0933333333332 149.3333333333334 1090.5066666666667 149.3333333333334 896C149.3333333333334 844.8533333333332 154.56 794.8266666666666 164.2666666666667 746.6666666666665H723.5200000000001L637.2800000000002 896zM183.68 672C252.3733333333334 453.5999999999999 418.88 279.2533333333334 631.3066666666667 198.6133333333332L904.5866666666668 672H183.68zM1025.1733333333334 672L733.9733333333334 167.6266666666666C786.24 156.0533333333333 840.3733333333334 149.3333333333333 896 149.3333333333333C1075.2 149.3333333333333 1239.0933333333332 212.4266666666665 1367.8933333333334 317.7066666666665L1094.24 791.4666666666666L1025.1733333333334 672z" />
     <glyph glyph-name="subtitles"
-      unicode="&#xF10C;"
+      unicode="&#xF10B;"
       horiz-adv-x="1792" d=" M1493.3333333333335 1493.3333333333333H298.6666666666667C216.16 1493.3333333333333 149.3333333333334 1426.5066666666667 149.3333333333334 1344V448C149.3333333333334 365.4933333333331 216.16 298.6666666666665 298.6666666666667 298.6666666666665H1493.3333333333335C1575.8400000000001 298.6666666666665 1642.6666666666667 365.4933333333331 1642.6666666666667 448V1344C1642.6666666666667 1426.5066666666667 1575.8400000000001 1493.3333333333333 1493.3333333333335 1493.3333333333333zM298.6666666666667 896H597.3333333333334V746.6666666666665H298.6666666666667V896zM1045.3333333333335 448H298.6666666666667V597.3333333333333H1045.3333333333335V448zM1493.3333333333335 448H1194.6666666666667V597.3333333333333H1493.3333333333335V448zM1493.3333333333335 746.6666666666665H746.6666666666667V896H1493.3333333333335V746.6666666666665z" />
     <glyph glyph-name="captions"
-      unicode="&#xF10D;"
+      unicode="&#xF10C;"
       horiz-adv-x="1792" d=" M1418.6666666666667 1493.3333333333333H373.3333333333334C290.8266666666667 1493.3333333333333 224 1426.5066666666667 224 1344V448C224 365.4933333333331 290.8266666666667 298.6666666666665 373.3333333333334 298.6666666666665H1418.6666666666667C1501.1733333333334 298.6666666666665 1568 365.4933333333331 1568 448V1344C1568 1426.5066666666667 1501.1733333333334 1493.3333333333333 1418.6666666666667 1493.3333333333333zM821.3333333333334 970.6666666666666H709.3333333333334V1008H560V783.9999999999999H709.3333333333334V821.3333333333333H821.3333333333334V746.6666666666665C821.3333333333334 705.5999999999999 788.1066666666667 672 746.6666666666667 672H522.6666666666667C481.2266666666667 672 448 705.5999999999999 448 746.6666666666665V1045.3333333333333C448 1086.4 481.2266666666667 1120 522.6666666666667 1120H746.6666666666667C788.1066666666667 1120 821.3333333333334 1086.4 821.3333333333334 1045.3333333333333V970.6666666666666zM1344 970.6666666666666H1232V1008H1082.6666666666667V783.9999999999999H1232V821.3333333333333H1344V746.6666666666665C1344 705.5999999999999 1310.7733333333333 672 1269.3333333333335 672H1045.3333333333335C1003.8933333333334 672 970.6666666666669 705.5999999999999 970.6666666666669 746.6666666666665V1045.3333333333333C970.6666666666669 1086.4 1003.8933333333334 1120 1045.3333333333335 1120H1269.3333333333335C1310.7733333333333 1120 1344 1086.4 1344 1045.3333333333333V970.6666666666666z" />
+    <glyph glyph-name="hd"
+      unicode="&#xF10D;"
+      horiz-adv-x="1792" d=" M1418.6666666666667 1568H373.3333333333334C290.4533333333333 1568 224 1500.8 224 1418.6666666666665V373.3333333333333C224 291.1999999999998 290.4533333333334 224 373.3333333333334 224H1418.6666666666667C1500.8000000000002 224 1568 291.1999999999998 1568 373.3333333333333V1418.6666666666665C1568 1500.8 1500.8000000000002 1568 1418.6666666666667 1568zM821.3333333333334 672H709.3333333333334V821.3333333333333H560V672H448V1120H560V933.3333333333331H709.3333333333334V1120H821.3333333333334V672zM970.6666666666669 1120H1269.3333333333335C1310.4 1120 1344 1086.4 1344 1045.3333333333333V746.6666666666665C1344 705.5999999999999 1310.4 672 1269.3333333333335 672H970.6666666666669V1120zM1082.6666666666667 783.9999999999999H1232V1008H1082.6666666666667V783.9999999999999z" />
     <glyph glyph-name="chapters"
       unicode="&#xF10E;"
       horiz-adv-x="1792" d=" M224 821.3333333333333H373.3333333333334V970.6666666666666H224V821.3333333333333zM224 522.6666666666665H373.3333333333334V672H224V522.6666666666665zM224 1120H373.3333333333334V1269.3333333333333H224V1120zM522.6666666666667 821.3333333333333H1568V970.6666666666666H522.6666666666667V821.3333333333333zM522.6666666666667 522.6666666666665H1568V672H522.6666666666667V522.6666666666665zM522.6666666666667 1269.3333333333333V1120H1568V1269.3333333333333H522.6666666666667z" />
-    <glyph glyph-name="share"
+    <glyph glyph-name="downloading"
       unicode="&#xF10F;"
+      horiz-adv-x="1792" d=" M815.7183999999999 140Q671.9999999999999 153.0816000000002 547.8591999999999 217.4592Q423.7183999999999 281.8816000000002 332.2815999999999 384.5184Q240.8 487.2 189.4592 618.7775999999999Q138.1184 750.3999999999999 138.1184 897.8815999999999Q138.1184 1192.8 332.2815999999999 1409.3183999999999Q526.4 1625.8816 817.5999999999999 1655.7184V1513.8816Q586.1184 1480.2815999999998 433.0816 1305.7408Q280 1131.2 280 897.8816000000002Q280 664.5184000000002 432.1408 490.0224000000003Q584.2816 315.4816000000001 815.7183999999999 281.8816000000002zM896 518.9184L517.0816 896L610.4 989.3184L830.6816 769.0816V1273.0816H961.3184V769.0816L1179.7184 989.3184L1273.0816 896zM976.2816 140V281.8816000000002Q1058.3999999999999 293.0816000000002 1134.9184 324.8000000000002Q1211.4816 356.5184 1276.8 408.8000000000002L1381.3183999999999 306.1184000000001Q1293.6 235.2000000000001 1190.9183999999998 192.2816000000003Q1088.2815999999998 149.3184000000001 976.2815999999998 140zM1280.5184 1385.0816Q1211.4816 1435.4816 1134.9184 1468.1408000000001Q1058.4 1500.8000000000002 976.2816 1513.8816000000002V1655.7184Q1088.2816 1644.5184 1189.9776 1601.6Q1291.7184 1558.6816 1381.3184 1489.6zM1485.8816 418.1184000000001L1385.0816 518.9184000000002Q1437.3183999999999 586.1184000000001 1468.1408 662.6816000000001Q1498.9183999999998 739.2 1510.1183999999998 821.3184000000001H1653.8816Q1640.8 709.3184000000001 1598.8224 606.6816000000001Q1556.8 504 1485.8816 418.1184000000001zM1510.1183999999998 974.4Q1497.0816 1056.5184 1467.1999999999998 1133.9776000000002Q1437.3183999999999 1211.4816 1385.0816 1276.8000000000002L1491.4816 1375.7184Q1560.5184 1289.8816000000002 1601.6 1187.2Q1642.6816 1084.5184 1653.8816 974.4z" />
+    <glyph glyph-name="file-download"
+      unicode="&#xF110;"
+      horiz-adv-x="1792" d=" M403.2000000000001 278.1333333333335Q352.8000000000001 278.1333333333335 314.5333333333334 315.4666666666667T276.2666666666667 405.0666666666666V692.5333333333333H403.2000000000001V405.0666666666666H1386.9333333333336V692.5333333333333H1513.866666666667V405.0666666666666Q1513.866666666667 352.8 1476.5333333333335 315.4666666666667T1386.9333333333336 278.1333333333335zM896 593.5999999999999L518.9333333333334 968.8L610.4000000000001 1060.2666666666664L832.5333333333334 838.1333333333332V1525.0666666666666H959.4666666666666V838.1333333333333L1181.6 1060.2666666666667L1273.0666666666668 968.8z" />
+    <glyph glyph-name="file-download-done"
+      unicode="&#xF111;"
+      horiz-adv-x="1792" d=" M365.8666666666668 280V408.8H1426.1333333333334V280zM709.3333333333334 617.8666666666666L276.2666666666667 1050.9333333333334L367.7333333333334 1138.6666666666665L709.3333333333334 797.0666666666666L1426.1333333333334 1513.8666666666668L1515.7333333333336 1424.2666666666667z" />
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+    <glyph glyph-name="audio-description"
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diff --git a/media/player/videojs/fonts/VideoJS.ttf b/media/player/videojs/fonts/VideoJS.ttf
old mode 100644
new mode 100755
index 2f3c5110042..69c26b98ba5
Binary files a/media/player/videojs/fonts/VideoJS.ttf and b/media/player/videojs/fonts/VideoJS.ttf differ
diff --git a/media/player/videojs/fonts/VideoJS.woff b/media/player/videojs/fonts/VideoJS.woff
old mode 100644
new mode 100755
index 4b846ae5e03..df576af59e3
Binary files a/media/player/videojs/fonts/VideoJS.woff and b/media/player/videojs/fonts/VideoJS.woff differ
diff --git a/media/player/videojs/readme_moodle.txt b/media/player/videojs/readme_moodle.txt
index 5b64c8b52b5..481ea2ea26a 100644
--- a/media/player/videojs/readme_moodle.txt
+++ b/media/player/videojs/readme_moodle.txt
@@ -1,4 +1,4 @@
-VideoJS 7.20.3
+VideoJS 8.3.0
 --------------
 https://github.com/videojs/video.js
 
diff --git a/media/player/videojs/styles.css b/media/player/videojs/styles.css
index ec13d688556..11a2bd656bd 100644
--- a/media/player/videojs/styles.css
+++ b/media/player/videojs/styles.css
@@ -14,7 +14,7 @@
 
 @font-face {
   font-family: VideoJS;
-  src: 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format("woff");
+  src: url(data:application/font-woff;charset=utf-8;base64,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) format("woff");
   font-weight: normal;
   font-style: normal;
 }
@@ -99,22 +99,13 @@
   content: "\f109";
 }
 
-.vjs-icon-square {
-  font-family: VideoJS;
-  font-weight: normal;
-  font-style: normal;
-}
-.vjs-icon-square:before {
-  content: "\f10a";
-}
-
 .vjs-icon-spinner {
   font-family: VideoJS;
   font-weight: normal;
   font-style: normal;
 }
 .vjs-icon-spinner:before {
-  content: "\f10b";
+  content: "\f10a";
 }
 
 .vjs-icon-subtitles, .video-js .vjs-subs-caps-button .vjs-icon-placeholder,
@@ -131,7 +122,7 @@
 .video-js.video-js:lang(en-IE) .vjs-subs-caps-button .vjs-icon-placeholder:before,
 .video-js.video-js:lang(en-AU) .vjs-subs-caps-button .vjs-icon-placeholder:before,
 .video-js.video-js:lang(en-NZ) .vjs-subs-caps-button .vjs-icon-placeholder:before, .video-js .vjs-subtitles-button .vjs-icon-placeholder:before {
-  content: "\f10c";
+  content: "\f10b";
 }
 
 .vjs-icon-captions, .video-js:lang(en) .vjs-subs-caps-button .vjs-icon-placeholder,
@@ -142,6 +133,15 @@
 }
 .vjs-icon-captions:before, .video-js:lang(en) .vjs-subs-caps-button .vjs-icon-placeholder:before,
 .video-js:lang(fr-CA) .vjs-subs-caps-button .vjs-icon-placeholder:before, .video-js .vjs-captions-button .vjs-icon-placeholder:before {
+  content: "\f10c";
+}
+
+.vjs-icon-hd {
+  font-family: VideoJS;
+  font-weight: normal;
+  font-style: normal;
+}
+.vjs-icon-hd:before {
   content: "\f10d";
 }
 
@@ -154,13 +154,49 @@
   content: "\f10e";
 }
 
+.vjs-icon-downloading {
+  font-family: VideoJS;
+  font-weight: normal;
+  font-style: normal;
+}
+.vjs-icon-downloading:before {
+  content: "\f10f";
+}
+
+.vjs-icon-file-download {
+  font-family: VideoJS;
+  font-weight: normal;
+  font-style: normal;
+}
+.vjs-icon-file-download:before {
+  content: "\f110";
+}
+
+.vjs-icon-file-download-done {
+  font-family: VideoJS;
+  font-weight: normal;
+  font-style: normal;
+}
+.vjs-icon-file-download-done:before {
+  content: "\f111";
+}
+
+.vjs-icon-file-download-off {
+  font-family: VideoJS;
+  font-weight: normal;
+  font-style: normal;
+}
+.vjs-icon-file-download-off:before {
+  content: "\f112";
+}
+
 .vjs-icon-share {
   font-family: VideoJS;
   font-weight: normal;
   font-style: normal;
 }
 .vjs-icon-share:before {
-  content: "\f10f";
+  content: "\f113";
 }
 
 .vjs-icon-cog {
@@ -169,7 +205,16 @@
   font-style: normal;
 }
 .vjs-icon-cog:before {
-  content: "\f110";
+  content: "\f114";
+}
+
+.vjs-icon-square {
+  font-family: VideoJS;
+  font-weight: normal;
+  font-style: normal;
+}
+.vjs-icon-square:before {
+  content: "\f115";
 }
 
 .vjs-icon-circle, .vjs-seek-to-live-control .vjs-icon-placeholder, .video-js .vjs-volume-level, .video-js .vjs-play-progress {
@@ -178,7 +223,7 @@
   font-style: normal;
 }
 .vjs-icon-circle:before, .vjs-seek-to-live-control .vjs-icon-placeholder:before, .video-js .vjs-volume-level:before, .video-js .vjs-play-progress:before {
-  content: "\f111";
+  content: "\f116";
 }
 
 .vjs-icon-circle-outline {
@@ -187,7 +232,7 @@
   font-style: normal;
 }
 .vjs-icon-circle-outline:before {
-  content: "\f112";
+  content: "\f117";
 }
 
 .vjs-icon-circle-inner-circle {
@@ -196,16 +241,7 @@
   font-style: normal;
 }
 .vjs-icon-circle-inner-circle:before {
-  content: "\f113";
-}
-
-.vjs-icon-hd {
-  font-family: VideoJS;
-  font-weight: normal;
-  font-style: normal;
-}
-.vjs-icon-hd:before {
-  content: "\f114";
+  content: "\f118";
 }
 
 .vjs-icon-cancel, .video-js .vjs-control.vjs-close-button .vjs-icon-placeholder {
@@ -214,7 +250,16 @@
   font-style: normal;
 }
 .vjs-icon-cancel:before, .video-js .vjs-control.vjs-close-button .vjs-icon-placeholder:before {
-  content: "\f115";
+  content: "\f119";
+}
+
+.vjs-icon-repeat {
+  font-family: VideoJS;
+  font-weight: normal;
+  font-style: normal;
+}
+.vjs-icon-repeat:before {
+  content: "\f11a";
 }
 
 .vjs-icon-replay, .video-js .vjs-play-control.vjs-ended .vjs-icon-placeholder {
@@ -223,79 +268,70 @@
   font-style: normal;
 }
 .vjs-icon-replay:before, .video-js .vjs-play-control.vjs-ended .vjs-icon-placeholder:before {
-  content: "\f116";
-}
-
-.vjs-icon-facebook {
-  font-family: VideoJS;
-  font-weight: normal;
-  font-style: normal;
-}
-.vjs-icon-facebook:before {
-  content: "\f117";
-}
-
-.vjs-icon-gplus {
-  font-family: VideoJS;
-  font-weight: normal;
-  font-style: normal;
-}
-.vjs-icon-gplus:before {
-  content: "\f118";
-}
-
-.vjs-icon-linkedin {
-  font-family: VideoJS;
-  font-weight: normal;
-  font-style: normal;
-}
-.vjs-icon-linkedin:before {
-  content: "\f119";
-}
-
-.vjs-icon-twitter {
-  font-family: VideoJS;
-  font-weight: normal;
-  font-style: normal;
-}
-.vjs-icon-twitter:before {
-  content: "\f11a";
-}
-
-.vjs-icon-tumblr {
-  font-family: VideoJS;
-  font-weight: normal;
-  font-style: normal;
-}
-.vjs-icon-tumblr:before {
   content: "\f11b";
 }
 
-.vjs-icon-pinterest {
+.vjs-icon-replay-5, .video-js .vjs-skip-backward-5 .vjs-icon-placeholder {
   font-family: VideoJS;
   font-weight: normal;
   font-style: normal;
 }
-.vjs-icon-pinterest:before {
+.vjs-icon-replay-5:before, .video-js .vjs-skip-backward-5 .vjs-icon-placeholder:before {
   content: "\f11c";
 }
 
-.vjs-icon-audio-description, .video-js .vjs-descriptions-button .vjs-icon-placeholder {
+.vjs-icon-replay-10, .video-js .vjs-skip-backward-10 .vjs-icon-placeholder {
   font-family: VideoJS;
   font-weight: normal;
   font-style: normal;
 }
-.vjs-icon-audio-description:before, .video-js .vjs-descriptions-button .vjs-icon-placeholder:before {
+.vjs-icon-replay-10:before, .video-js .vjs-skip-backward-10 .vjs-icon-placeholder:before {
   content: "\f11d";
 }
 
+.vjs-icon-replay-30, .video-js .vjs-skip-backward-30 .vjs-icon-placeholder {
+  font-family: VideoJS;
+  font-weight: normal;
+  font-style: normal;
+}
+.vjs-icon-replay-30:before, .video-js .vjs-skip-backward-30 .vjs-icon-placeholder:before {
+  content: "\f11e";
+}
+
+.vjs-icon-forward-5, .video-js .vjs-skip-forward-5 .vjs-icon-placeholder {
+  font-family: VideoJS;
+  font-weight: normal;
+  font-style: normal;
+}
+.vjs-icon-forward-5:before, .video-js .vjs-skip-forward-5 .vjs-icon-placeholder:before {
+  content: "\f11f";
+}
+
+.vjs-icon-forward-10, .video-js .vjs-skip-forward-10 .vjs-icon-placeholder {
+  font-family: VideoJS;
+  font-weight: normal;
+  font-style: normal;
+}
+.vjs-icon-forward-10:before, .video-js .vjs-skip-forward-10 .vjs-icon-placeholder:before {
+  content: "\f120";
+}
+
+.vjs-icon-forward-30, .video-js .vjs-skip-forward-30 .vjs-icon-placeholder {
+  font-family: VideoJS;
+  font-weight: normal;
+  font-style: normal;
+}
+.vjs-icon-forward-30:before, .video-js .vjs-skip-forward-30 .vjs-icon-placeholder:before {
+  content: "\f121";
+}
+
 .vjs-icon-audio, .video-js .vjs-audio-button .vjs-icon-placeholder {
   font-family: VideoJS;
   font-weight: normal;
   font-style: normal;
 }
 .vjs-icon-audio:before, .video-js .vjs-audio-button .vjs-icon-placeholder:before {
-  content: "\f11e";
+  content: "\f122";
 }
 
 .vjs-icon-next-item {
@@ -304,7 +340,7 @@
   font-style: normal;
 }
 .vjs-icon-next-item:before {
-  content: "\f11f";
+  content: "\f123";
 }
 
 .vjs-icon-previous-item {
@@ -313,7 +349,25 @@
   font-style: normal;
 }
 .vjs-icon-previous-item:before {
-  content: "\f120";
+  content: "\f124";
+}
+
+.vjs-icon-shuffle {
+  font-family: VideoJS;
+  font-weight: normal;
+  font-style: normal;
+}
+.vjs-icon-shuffle:before {
+  content: "\f125";
+}
+
+.vjs-icon-cast {
+  font-family: VideoJS;
+  font-weight: normal;
+  font-style: normal;
+}
+.vjs-icon-cast:before {
+  content: "\f126";
 }
 
 .vjs-icon-picture-in-picture-enter, .video-js .vjs-picture-in-picture-control .vjs-icon-placeholder {
@@ -322,7 +376,7 @@
   font-style: normal;
 }
 .vjs-icon-picture-in-picture-enter:before, .video-js .vjs-picture-in-picture-control .vjs-icon-placeholder:before {
-  content: "\f121";
+  content: "\f127";
 }
 
 .vjs-icon-picture-in-picture-exit, .video-js.vjs-picture-in-picture .vjs-picture-in-picture-control .vjs-icon-placeholder {
@@ -331,11 +385,65 @@
   font-style: normal;
 }
 .vjs-icon-picture-in-picture-exit:before, .video-js.vjs-picture-in-picture .vjs-picture-in-picture-control .vjs-icon-placeholder:before {
-  content: "\f122";
+  content: "\f128";
+}
+
+.vjs-icon-facebook {
+  font-family: VideoJS;
+  font-weight: normal;
+  font-style: normal;
+}
+.vjs-icon-facebook:before {
+  content: "\f129";
+}
+
+.vjs-icon-linkedin {
+  font-family: VideoJS;
+  font-weight: normal;
+  font-style: normal;
+}
+.vjs-icon-linkedin:before {
+  content: "\f12a";
+}
+
+.vjs-icon-twitter {
+  font-family: VideoJS;
+  font-weight: normal;
+  font-style: normal;
+}
+.vjs-icon-twitter:before {
+  content: "\f12b";
+}
+
+.vjs-icon-tumblr {
+  font-family: VideoJS;
+  font-weight: normal;
+  font-style: normal;
+}
+.vjs-icon-tumblr:before {
+  content: "\f12c";
+}
+
+.vjs-icon-pinterest {
+  font-family: VideoJS;
+  font-weight: normal;
+  font-style: normal;
+}
+.vjs-icon-pinterest:before {
+  content: "\f12d";
+}
+
+.vjs-icon-audio-description, .video-js .vjs-descriptions-button .vjs-icon-placeholder {
+  font-family: VideoJS;
+  font-weight: normal;
+  font-style: normal;
+}
+.vjs-icon-audio-description:before, .video-js .vjs-descriptions-button .vjs-icon-placeholder:before {
+  content: "\f12e";
 }
 
 .video-js {
-  display: block;
+  display: inline-block;
   vertical-align: top;
   box-sizing: border-box;
   color: #fff;
@@ -428,13 +536,15 @@
   display: none;
 }
 
-body.vjs-full-window {
+body.vjs-full-window,
+body.vjs-pip-window {
   padding: 0;
   margin: 0;
   height: 100%;
 }
 
-.vjs-full-window .video-js.vjs-fullscreen {
+.vjs-full-window .video-js.vjs-fullscreen,
+body.vjs-pip-window .video-js {
   position: fixed;
   overflow: hidden;
   z-index: 1000;
@@ -444,7 +554,8 @@ body.vjs-full-window {
   right: 0;
 }
 
-.video-js.vjs-fullscreen:not(.vjs-ios-native-fs) {
+.video-js.vjs-fullscreen:not(.vjs-ios-native-fs),
+body.vjs-pip-window .video-js {
   width: 100% !important;
   height: 100% !important;
   padding-top: 0 !important;
@@ -454,6 +565,23 @@ body.vjs-full-window {
   cursor: none;
 }
 
+.vjs-pip-container .vjs-pip-text {
+  position: absolute;
+  bottom: 10%;
+  font-size: 2em;
+  background-color: rgba(0, 0, 0, 0.7);
+  padding: 0.5em;
+  text-align: center;
+  width: 100%;
+}
+
+.vjs-layout-tiny.vjs-pip-container .vjs-pip-text,
+.vjs-layout-x-small.vjs-pip-container .vjs-pip-text,
+.vjs-layout-small.vjs-pip-container .vjs-pip-text {
+  bottom: 0;
+  font-size: 1.4em;
+}
+
 .vjs-hidden {
   display: none !important;
 }
@@ -501,9 +629,11 @@ body.vjs-full-window {
   width: 3em;
   display: block;
   position: absolute;
-  top: 10px;
-  left: 10px;
+  top: 50%;
+  left: 50%;
   padding: 0;
+  margin-top: -0.81666em;
+  margin-left: -1.5em;
   cursor: pointer;
   opacity: 1;
   border: 0.06666em solid #fff;
@@ -512,13 +642,6 @@ body.vjs-full-window {
   border-radius: 0.3em;
   transition: all 0.4s;
 }
-.vjs-big-play-centered .vjs-big-play-button {
-  top: 50%;
-  left: 50%;
-  margin-top: -0.81666em;
-  margin-left: -1.5em;
-}
-
 .video-js:hover .vjs-big-play-button,
 .video-js .vjs-big-play-button:focus {
   border-color: #fff;
@@ -663,6 +786,11 @@ body.vjs-full-window {
   border-top-color: rgba(43, 51, 63, 0.7);
 }
 
+.vjs-pip-window .vjs-menu-button-popup .vjs-menu {
+  left: unset;
+  right: 1em;
+}
+
 .vjs-menu-button-popup .vjs-menu .vjs-menu-content {
   background-color: #2B333F;
   background-color: rgba(43, 51, 63, 0.7);
@@ -707,8 +835,7 @@ body.vjs-full-window {
 
 .video-js .vjs-menu-button-inline:hover,
 .video-js .vjs-menu-button-inline:focus,
-.video-js .vjs-menu-button-inline.vjs-slider-active,
-.video-js.vjs-no-flex .vjs-menu-button-inline {
+.video-js .vjs-menu-button-inline.vjs-slider-active {
   width: 12em;
 }
 
@@ -731,19 +858,6 @@ body.vjs-full-window {
   opacity: 1;
 }
 
-.vjs-no-flex .vjs-menu-button-inline .vjs-menu {
-  display: block;
-  opacity: 1;
-  position: relative;
-  width: auto;
-}
-
-.vjs-no-flex .vjs-menu-button-inline:hover .vjs-menu,
-.vjs-no-flex .vjs-menu-button-inline:focus .vjs-menu,
-.vjs-no-flex .vjs-menu-button-inline.vjs-slider-active .vjs-menu {
-  width: auto;
-}
-
 .vjs-menu-button-inline .vjs-menu-content {
   width: auto;
   height: 100%;
@@ -791,10 +905,6 @@ body.vjs-full-window {
   pointer-events: auto;
 }
 
-.vjs-has-started.vjs-no-flex .vjs-control-bar {
-  display: table;
-}
-
 .video-js .vjs-control {
   position: relative;
   text-align: center;
@@ -836,11 +946,6 @@ body.vjs-full-window {
   width: 1px;
 }
 
-.vjs-no-flex .vjs-control {
-  display: table-cell;
-  vertical-align: middle;
-}
-
 .video-js .vjs-custom-control-spacer {
   display: none;
 }
@@ -867,10 +972,6 @@ body.vjs-full-window {
   align-items: center;
 }
 
-.vjs-no-flex .vjs-progress-control {
-  width: auto;
-}
-
 .video-js .vjs-progress-holder {
   flex: auto;
   transition: all 0.2s;
@@ -907,7 +1008,7 @@ body.vjs-full-window {
   font-size: 0.9em;
   position: absolute;
   right: -0.5em;
-  top: -0.3333333333em;
+  line-height: 0.35em;
   z-index: 1;
 }
 
@@ -959,10 +1060,6 @@ body.vjs-full-window {
   z-index: 1;
 }
 
-.vjs-no-flex .vjs-progress-control .vjs-mouse-display {
-  z-index: 0;
-}
-
 .video-js .vjs-progress-control:hover .vjs-mouse-display {
   display: block;
 }
@@ -973,10 +1070,6 @@ body.vjs-full-window {
   transition: visibility 1s, opacity 1s;
 }
 
-.video-js.vjs-user-inactive.vjs-no-flex .vjs-progress-control .vjs-mouse-display {
-  display: none;
-}
-
 .vjs-mouse-display .vjs-time-tooltip {
   color: #fff;
   background-color: #000;
@@ -996,7 +1089,6 @@ body.vjs-full-window {
   /* Firefox */
   -moz-user-select: none;
   /* Internet Explorer/Edge */
-  -ms-user-select: none;
   /* Non-prefixed version, currently supported by Chrome and Opera */
   user-select: none;
   background-color: #73859f;
@@ -1071,22 +1163,6 @@ body.vjs-full-window {
   transition: visibility 1s, opacity 1s, height 1s 1s, width 1s, left 1s 1s, top 1s 1s;
 }
 
-.video-js.vjs-no-flex .vjs-volume-panel .vjs-volume-control.vjs-volume-horizontal {
-  width: 5em;
-  height: 3em;
-  visibility: visible;
-  opacity: 1;
-  position: relative;
-  transition: none;
-}
-
-.video-js.vjs-no-flex .vjs-volume-control.vjs-volume-vertical,
-.video-js.vjs-no-flex .vjs-volume-panel .vjs-volume-control.vjs-volume-vertical {
-  position: absolute;
-  bottom: 3em;
-  left: 0.5em;
-}
-
 .video-js .vjs-volume-panel {
   display: flex;
 }
@@ -1131,7 +1207,7 @@ body.vjs-full-window {
   height: 0.3em;
 }
 .vjs-slider-horizontal .vjs-volume-level:before {
-  top: -0.3em;
+  line-height: 0.35em;
   right: -0.5em;
 }
 
@@ -1206,10 +1282,6 @@ body.vjs-full-window {
   height: 100%;
 }
 
-.vjs-no-flex .vjs-volume-control .vjs-mouse-display {
-  z-index: 0;
-}
-
 .video-js .vjs-volume-control:hover .vjs-mouse-display {
   display: block;
 }
@@ -1220,10 +1292,6 @@ body.vjs-full-window {
   transition: visibility 1s, opacity 1s;
 }
 
-.video-js.vjs-user-inactive.vjs-no-flex .vjs-volume-control .vjs-mouse-display {
-  display: none;
-}
-
 .vjs-mouse-display .vjs-volume-tooltip {
   color: #fff;
   background-color: #000;
@@ -1233,10 +1301,6 @@ body.vjs-full-window {
 .vjs-poster {
   display: inline-block;
   vertical-align: middle;
-  background-repeat: no-repeat;
-  background-position: 50% 50%;
-  background-size: contain;
-  background-color: #000000;
   cursor: pointer;
   margin: 0;
   padding: 0;
@@ -1254,10 +1318,18 @@ body.vjs-full-window {
 }
 
 .vjs-audio.vjs-has-started .vjs-poster,
-.vjs-has-started.vjs-audio-poster-mode .vjs-poster {
+.vjs-has-started.vjs-audio-poster-mode .vjs-poster,
+.vjs-pip-container.vjs-has-started .vjs-poster {
   display: block;
 }
 
+.vjs-poster img {
+  width: 100%;
+  height: 100%;
+  -o-object-fit: contain;
+  object-fit: contain;
+}
+
 .video-js .vjs-live-control {
   display: flex;
   align-items: flex-start;
@@ -1266,12 +1338,6 @@ body.vjs-full-window {
   line-height: 3em;
 }
 
-.vjs-no-flex .vjs-live-control {
-  display: table-cell;
-  width: auto;
-  text-align: left;
-}
-
 .video-js:not(.vjs-live) .vjs-live-control,
 .video-js.vjs-liveui .vjs-live-control {
   display: none;
@@ -1291,12 +1357,6 @@ body.vjs-full-window {
   min-width: 4em;
 }
 
-.vjs-no-flex .vjs-seek-to-live-control {
-  display: table-cell;
-  width: auto;
-  text-align: left;
-}
-
 .video-js.vjs-live:not(.vjs-liveui) .vjs-seek-to-live-control,
 .video-js:not(.vjs-live) .vjs-seek-to-live-control {
   display: none;
@@ -1325,17 +1385,10 @@ body.vjs-full-window {
   padding-right: 1em;
 }
 
-.vjs-live .vjs-time-control {
-  display: none;
-}
-
+.vjs-live .vjs-time-control,
+.vjs-live .vjs-time-divider,
 .video-js .vjs-current-time,
-.vjs-no-flex .vjs-current-time {
-  display: none;
-}
-
-.video-js .vjs-duration,
-.vjs-no-flex .vjs-duration {
+.video-js .vjs-duration {
   display: none;
 }
 
@@ -1344,10 +1397,6 @@ body.vjs-full-window {
   line-height: 3em;
 }
 
-.vjs-live .vjs-time-divider {
-  display: none;
-}
-
 .video-js .vjs-play-control {
   cursor: pointer;
 }
@@ -1401,7 +1450,8 @@ video::-webkit-media-text-track-display {
   cursor: pointer;
   flex: none;
 }
-.video-js.vjs-audio-only-mode .vjs-picture-in-picture-control {
+.video-js.vjs-audio-only-mode .vjs-picture-in-picture-control,
+.vjs-pip-window .vjs-picture-in-picture-control {
   display: none;
 }
 
@@ -1409,7 +1459,8 @@ video::-webkit-media-text-track-display {
   cursor: pointer;
   flex: none;
 }
-.video-js.vjs-audio-only-mode .vjs-fullscreen-control {
+.video-js.vjs-audio-only-mode .vjs-fullscreen-control,
+.vjs-pip-window .vjs-fullscreen-control {
   display: none;
 }
 
@@ -1475,8 +1526,7 @@ video::-webkit-media-text-track-display {
 .vjs-seeking .vjs-loading-spinner,
 .vjs-waiting .vjs-loading-spinner {
   display: block;
-  -webkit-animation: vjs-spinner-show 0s linear 0.3s forwards;
-          animation: vjs-spinner-show 0s linear 0.3s forwards;
+  animation: vjs-spinner-show 0s linear 0.3s forwards;
 }
 
 .vjs-loading-spinner:before,
@@ -1498,19 +1548,17 @@ video::-webkit-media-text-track-display {
 .vjs-seeking .vjs-loading-spinner:after,
 .vjs-waiting .vjs-loading-spinner:before,
 .vjs-waiting .vjs-loading-spinner:after {
-  -webkit-animation: vjs-spinner-spin 1.1s cubic-bezier(0.6, 0.2, 0, 0.8) infinite, vjs-spinner-fade 1.1s linear infinite;
   animation: vjs-spinner-spin 1.1s cubic-bezier(0.6, 0.2, 0, 0.8) infinite, vjs-spinner-fade 1.1s linear infinite;
 }
 
 .vjs-seeking .vjs-loading-spinner:before,
 .vjs-waiting .vjs-loading-spinner:before {
-  border-top-color: white;
+  border-top-color: rgb(255, 255, 255);
 }
 
 .vjs-seeking .vjs-loading-spinner:after,
 .vjs-waiting .vjs-loading-spinner:after {
-  border-top-color: white;
-  -webkit-animation-delay: 0.44s;
+  border-top-color: rgb(255, 255, 255);
   animation-delay: 0.44s;
 }
 
@@ -1519,21 +1567,11 @@ video::-webkit-media-text-track-display {
     visibility: visible;
   }
 }
-@-webkit-keyframes vjs-spinner-show {
-  to {
-    visibility: visible;
-  }
-}
 @keyframes vjs-spinner-spin {
   100% {
     transform: rotate(360deg);
   }
 }
-@-webkit-keyframes vjs-spinner-spin {
-  100% {
-    -webkit-transform: rotate(360deg);
-  }
-}
 @keyframes vjs-spinner-fade {
   0% {
     border-top-color: #73859f;
@@ -1551,23 +1589,6 @@ video::-webkit-media-text-track-display {
     border-top-color: #73859f;
   }
 }
-@-webkit-keyframes vjs-spinner-fade {
-  0% {
-    border-top-color: #73859f;
-  }
-  20% {
-    border-top-color: #73859f;
-  }
-  35% {
-    border-top-color: white;
-  }
-  60% {
-    border-top-color: #73859f;
-  }
-  100% {
-    border-top-color: #73859f;
-  }
-}
 .video-js.vjs-audio-only-mode .vjs-captions-button {
   display: none;
 }
@@ -1588,7 +1609,7 @@ video::-webkit-media-text-track-display {
 
 .video-js .vjs-subs-caps-button + .vjs-menu .vjs-captions-menu-item .vjs-menu-item-text .vjs-icon-placeholder:before {
   font-family: VideoJS;
-  content: "";
+  content: "\f10c";
   font-size: 1.5em;
   line-height: inherit;
 }
@@ -1605,7 +1626,7 @@ video::-webkit-media-text-track-display {
 
 .video-js .vjs-audio-button + .vjs-menu .vjs-main-desc-menu-item .vjs-menu-item-text .vjs-icon-placeholder:before {
   font-family: VideoJS;
-  content: " ";
+  content: " \f12e";
   font-size: 1.5em;
   line-height: inherit;
 }
@@ -1639,9 +1660,6 @@ video::-webkit-media-text-track-display {
   flex: auto;
   display: block;
 }
-.video-js.vjs-layout-x-small.vjs-no-flex .vjs-custom-control-spacer {
-  width: auto;
-}
 
 .vjs-modal-dialog.vjs-text-track-settings {
   background-color: #2B333F;
@@ -1672,18 +1690,15 @@ video::-webkit-media-text-track-display {
     grid-template-rows: 1fr;
     padding: 20px 24px 0px 24px;
   }
-
   .vjs-track-settings-controls .vjs-default-button {
     margin-bottom: 20px;
   }
-
   .vjs-text-track-settings .vjs-track-settings-controls {
     grid-column: 1/-1;
   }
-
   .vjs-layout-small .vjs-text-track-settings .vjs-modal-dialog-content,
-.vjs-layout-x-small .vjs-text-track-settings .vjs-modal-dialog-content,
-.vjs-layout-tiny .vjs-text-track-settings .vjs-modal-dialog-content {
+  .vjs-layout-x-small .vjs-text-track-settings .vjs-modal-dialog-content,
+  .vjs-layout-tiny .vjs-text-track-settings .vjs-modal-dialog-content {
     grid-template-columns: 1fr;
   }
 }
@@ -1693,13 +1708,13 @@ video::-webkit-media-text-track-display {
 }
 
 .vjs-text-track-settings fieldset {
-  margin: 5px;
-  padding: 3px;
+  margin: 10px;
   border: none;
 }
 
 .vjs-text-track-settings fieldset span {
   display: inline-block;
+  padding: 0 6px 8px;
 }
 
 .vjs-text-track-settings fieldset span > select {
@@ -1708,16 +1723,14 @@ video::-webkit-media-text-track-display {
 
 .vjs-text-track-settings legend {
   color: #fff;
-  margin: 0 0 5px 0;
+  font-weight: bold;
+  font-size: 14px;
 }
 
 .vjs-text-track-settings .vjs-label {
-  position: absolute;
   clip: rect(1px 1px 1px 1px);
   clip: rect(1px, 1px, 1px, 1px);
-  display: block;
-  margin: 0 0 5px 0;
-  padding: 0;
+  margin: 0 5px 5px 0;
   border: 0;
   height: 1px;
   width: 1px;
@@ -1747,6 +1760,55 @@ video::-webkit-media-text-track-display {
   margin-right: 1em;
 }
 
+.vjs-title-bar {
+  background: rgba(0, 0, 0, 0.9);
+  background: linear-gradient(180deg, rgba(0, 0, 0, 0.9) 0%, rgba(0, 0, 0, 0.7) 60%, rgba(0, 0, 0, 0) 100%);
+  font-size: 1.2em;
+  line-height: 1.5;
+  transition: opacity 0.1s;
+  padding: 0.666em 1.333em 4em;
+  pointer-events: none;
+  position: absolute;
+  top: 0;
+  width: 100%;
+}
+
+.vjs-title-bar-title,
+.vjs-title-bar-description {
+  margin: 0;
+  overflow: hidden;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+}
+
+.vjs-title-bar-title {
+  font-weight: bold;
+  margin-bottom: 0.333em;
+}
+
+.vjs-playing.vjs-user-inactive .vjs-title-bar {
+  opacity: 0;
+  transition: opacity 1s;
+}
+
+.video-js .vjs-skip-forward-5 {
+  cursor: pointer;
+}
+.video-js .vjs-skip-forward-10 {
+  cursor: pointer;
+}
+.video-js .vjs-skip-forward-30 {
+  cursor: pointer;
+}
+.video-js .vjs-skip-backward-5 {
+  cursor: pointer;
+}
+.video-js .vjs-skip-backward-10 {
+  cursor: pointer;
+}
+.video-js .vjs-skip-backward-30 {
+  cursor: pointer;
+}
 @media print {
   .video-js > *:not(.vjs-tech):not(.vjs-poster) {
     visibility: hidden;
diff --git a/media/player/videojs/thirdpartylibs.xml b/media/player/videojs/thirdpartylibs.xml
index 0ae1f40c27e..cae387795ff 100644
--- a/media/player/videojs/thirdpartylibs.xml
+++ b/media/player/videojs/thirdpartylibs.xml
@@ -4,7 +4,7 @@
         <location>amd/src/video-lazy.js</location>
         <name>VideoJS</name>
         <description>JavaScript library that makes it easier to work with and build on HTML5 video.</description>
-        <version>7.20.3</version>
+        <version>8.3.0</version>
         <license>Apache</license>
         <licenseversion>2.0</licenseversion>
         <repository>https://github.com/videojs/video.js</repository>
@@ -28,7 +28,7 @@
         <location>videojs</location>
         <name>VideoJS support files</name>
         <description>JavaScript library that makes it easier to work with and build on HTML5 video</description>
-        <version>7.20.3</version>
+        <version>8.3.0</version>
         <license>Apache</license>
         <licenseversion>2.0</licenseversion>
         <repository>https://github.com/videojs/video.js</repository>
diff --git a/media/player/videojs/videojs/lang/ar.js b/media/player/videojs/videojs/lang/ar.js
index b8a449e3f59..b3481c4b959 100644
--- a/media/player/videojs/videojs/lang/ar.js
+++ b/media/player/videojs/videojs/lang/ar.js
@@ -9,7 +9,7 @@ videojs.addLanguage('ar', {
   "Loaded": "تم التحميل",
   "Progress": "التقدم",
   "Fullscreen": "ملء الشاشة",
-  "Non-Fullscreen": "تعطيل ملء الشاشة",
+  "Exit Fullscreen": "تعطيل ملء الشاشة",
   "Mute": "صامت",
   "Unmute": "غير الصامت",
   "Playback Rate": "معدل التشغيل",
@@ -37,6 +37,7 @@ videojs.addLanguage('ar', {
   "Seek to live, currently behind live": "ذهاب إلى نقطة البث المباشر، متأخر عن البث المباشر حاليًا",
   "Seek to live, currently playing live": "ذهاب إلى نقطة البث المباشر، البث المباشر قيد التشغيل حاليًا",
   "Progress Bar": "شريط التقدم",
+  "progress bar timing: currentTime={1} duration={2}": "{1} من {2}",
   "Descriptions": "الأوصاف",
   "descriptions off": "إخفاء الأوصاف",
   "Audio Track": "المسار الصوتي",
@@ -82,5 +83,12 @@ videojs.addLanguage('ar', {
   "Caption Settings Dialog": "مربع حوار إعدادات التعليقات التوضيحية",
   "Beginning of dialog window. Escape will cancel and close the window.": "بداية نافذة مربع حوار. الضغط على زر \"Escape\" سيؤدي إلى الإلغاء وإغلاق النافذة.",
   "End of dialog window.": "نهاية نافذة مربع حوار.",
-  "{1} is loading.": "{1} قيد التحميل."
+  "{1} is loading.": "{1} قيد التحميل.",
+  "Exit Picture-in-Picture": "خرج من وضع صورة داخل صورة",
+  "Picture-in-Picture": "صورة داخل صورة",
+  "No content": "لا يوجد محتوى",
+  "Color": "اللون",
+  "Opacity": "معدل الشفافية",
+  "Text Background": "خلفية النص",
+  "Caption Area Background": "خلفية منطقة التسمية التوضيحية"
 });
\ No newline at end of file
diff --git a/media/player/videojs/videojs/lang/ar.json b/media/player/videojs/videojs/lang/ar.json
index ef59ae82c54..21719af8d6a 100644
--- a/media/player/videojs/videojs/lang/ar.json
+++ b/media/player/videojs/videojs/lang/ar.json
@@ -9,7 +9,7 @@
   "Loaded": "تم التحميل",
   "Progress": "التقدم",
   "Fullscreen": "ملء الشاشة",
-  "Non-Fullscreen": "تعطيل ملء الشاشة",
+  "Exit Fullscreen": "تعطيل ملء الشاشة",
   "Mute": "صامت",
   "Unmute": "غير الصامت",
   "Playback Rate": "معدل التشغيل",
@@ -37,6 +37,7 @@
   "Seek to live, currently behind live": "ذهاب إلى نقطة البث المباشر، متأخر عن البث المباشر حاليًا",
   "Seek to live, currently playing live": "ذهاب إلى نقطة البث المباشر، البث المباشر قيد التشغيل حاليًا",
   "Progress Bar": "شريط التقدم",
+  "progress bar timing: currentTime={1} duration={2}": "{1} من {2}",
   "Descriptions": "الأوصاف",
   "descriptions off": "إخفاء الأوصاف",
   "Audio Track": "المسار الصوتي",
@@ -82,5 +83,12 @@
   "Caption Settings Dialog": "مربع حوار إعدادات التعليقات التوضيحية",
   "Beginning of dialog window. Escape will cancel and close the window.": "بداية نافذة مربع حوار. الضغط على زر \"Escape\" سيؤدي إلى الإلغاء وإغلاق النافذة.",
   "End of dialog window.": "نهاية نافذة مربع حوار.",
-  "{1} is loading.": "{1} قيد التحميل."
+  "{1} is loading.": "{1} قيد التحميل.",
+  "Exit Picture-in-Picture": "خرج من وضع صورة داخل صورة",
+  "Picture-in-Picture": "صورة داخل صورة",
+  "No content": "لا يوجد محتوى",
+  "Color": "اللون",
+  "Opacity": "معدل الشفافية",
+  "Text Background": "خلفية النص",
+  "Caption Area Background": "خلفية منطقة التسمية التوضيحية"
 }
diff --git a/media/player/videojs/videojs/lang/ba.js b/media/player/videojs/videojs/lang/ba.js
index 0705eb40eb7..298dd5055c2 100644
--- a/media/player/videojs/videojs/lang/ba.js
+++ b/media/player/videojs/videojs/lang/ba.js
@@ -9,7 +9,7 @@ videojs.addLanguage('ba', {
   "Loaded": "Učitan",
   "Progress": "Progres",
   "Fullscreen": "Puni ekran",
-  "Non-Fullscreen": "Mali ekran",
+  "Exit Fullscreen": "Mali ekran",
   "Mute": "Prigušen",
   "Unmute": "Ne-prigušen",
   "Playback Rate": "Stopa reprodukcije",
diff --git a/media/player/videojs/videojs/lang/ba.json b/media/player/videojs/videojs/lang/ba.json
index 32e1763f0a1..da6b2a76dde 100644
--- a/media/player/videojs/videojs/lang/ba.json
+++ b/media/player/videojs/videojs/lang/ba.json
@@ -9,7 +9,7 @@
   "Loaded": "Učitan",
   "Progress": "Progres",
   "Fullscreen": "Puni ekran",
-  "Non-Fullscreen": "Mali ekran",
+  "Exit Fullscreen": "Mali ekran",
   "Mute": "Prigušen",
   "Unmute": "Ne-prigušen",
   "Playback Rate": "Stopa reprodukcije",
diff --git a/media/player/videojs/videojs/lang/bg.js b/media/player/videojs/videojs/lang/bg.js
index 6285df20d58..9f9fb2a877c 100644
--- a/media/player/videojs/videojs/lang/bg.js
+++ b/media/player/videojs/videojs/lang/bg.js
@@ -9,7 +9,7 @@ videojs.addLanguage('bg', {
   "Loaded": "Заредено",
   "Progress": "Прогрес",
   "Fullscreen": "Цял екран",
-  "Non-Fullscreen": "Спиране на цял екран",
+  "Exit Fullscreen": "Спиране на цял екран",
   "Mute": "Без звук",
   "Unmute": "Със звук",
   "Playback Rate": "Скорост на възпроизвеждане",
diff --git a/media/player/videojs/videojs/lang/bg.json b/media/player/videojs/videojs/lang/bg.json
index 372e829398e..92d99b40a41 100644
--- a/media/player/videojs/videojs/lang/bg.json
+++ b/media/player/videojs/videojs/lang/bg.json
@@ -9,7 +9,7 @@
   "Loaded": "Заредено",
   "Progress": "Прогрес",
   "Fullscreen": "Цял екран",
-  "Non-Fullscreen": "Спиране на цял екран",
+  "Exit Fullscreen": "Спиране на цял екран",
   "Mute": "Без звук",
   "Unmute": "Със звук",
   "Playback Rate": "Скорост на възпроизвеждане",
diff --git a/media/player/videojs/videojs/lang/bn.js b/media/player/videojs/videojs/lang/bn.js
new file mode 100644
index 00000000000..24f1d91c15f
--- /dev/null
+++ b/media/player/videojs/videojs/lang/bn.js
@@ -0,0 +1,90 @@
+videojs.addLanguage('bn', {
+  "Audio Player": "অডিও প্লেয়ার",
+  "Video Player": "ভিডিও প্লেয়ার",
+  "Play": "প্লে করুন",
+  "Pause": "বিরাম",
+  "Replay": "রিপ্লে করুন",
+  "Current Time": "বর্তমান সময়",
+  "Duration": "ব্যাপ্তিকাল",
+  "Remaining Time": "অবশিষ্ট সময়",
+  "Stream Type": "স্ট্রিমের ধরন",
+  "LIVE": "লাইভ",
+  "Seek to live, currently behind live": "লাইভ দেখুন, বর্তমানে লাইভের পিছনে আছে",
+  "Seek to live, currently playing live": "লাইভ দেখুন, বর্তমানে লাইভে আছে",
+  "Loaded": "লোড হয়েছে",
+  "Progress": "প্রোগ্রেস",
+  "Progress Bar": "প্রোগ্রেস বার",
+  "progress bar timing: currentTime={1} duration={2}": "{2} এর {1}",
+  "Fullscreen": "পূর্ণ স্ক্রীন",
+  "Non-Fullscreen": "পূর্ণ স্ক্রীন থেকে প্রস্থান করুন",
+  "Mute": "মিউট",
+  "Unmute": "আনমিউট",
+  "Playback Rate": "প্লেব্যাক রেট",
+  "Subtitles": "সাবটাইটেল",
+  "subtitles off": "সাবটাইটেল বন্ধ করুন",
+  "Captions": "ক্যাপশন",
+  "captions off": "ক্যাপশন বন্ধ করুন",
+  "Chapters": "অধ্যায়",
+  "Descriptions": "বর্ণনা",
+  "descriptions off": "বর্ণনা বন্ধ করুন",
+  "Audio Track": "অডিও গান",
+  "Volume Level": "ভলিউম লেভেল",
+  "You aborted the media playback": "আপনি মিডিয়া প্লেব্যাক বাতিল করেছেন",
+  "A network error caused the media download to fail part-way.": "একটি নেটওয়ার্ক ত্রুটির কারণে মিডিয়া ডাউনলোড আংশিকভাবে ব্যর্থ হয়েছে৷",
+  "The media could not be loaded, either because the server or network failed or because the format is not supported.": "মিডিয়া লোড করা যায়নি, হয় সার্ভার বা নেটওয়ার্ক ব্যর্থ হওয়ার কারণে বা ফর্ম্যাটটি সমর্থিত নয়।",
+  "The media playback was aborted due to a corruption problem or because the media used features your browser did not support.": "মিডিয়া প্লেব্যাক একটি সমস্যার কারণে বা মিডিয়া ব্যবহার করা বৈশিষ্ট্যগুলি আপনার ব্রাউজার সমর্থন করে না বলে বাতিল করা হয়েছে৷",
+  "No compatible source was found for this media.": "এই মিডিয়ার জন্য কোন সামঞ্জস্যপূর্ণ উৎস পাওয়া যায়নি.",
+  "The media is encrypted and we do not have the keys to decrypt it.": "মিডিয়া এনক্রিপ্ট করা হয়েছে এবং এটি ডিক্রিপ্ট করার সমাধান আমাদের কাছে নেই।",
+  "Play Video": "ভিডিও প্লে করুন",
+  "Close": "বন্ধ করুন",
+  "Close Modal Dialog": "মোডাল ডায়ালগ বন্ধ করুন",
+  "Modal Window": "মোডাল উইন্ডো",
+  "This is a modal window": "এটি একটি মোডাল উইন্ডো",
+  "This modal can be closed by pressing the Escape key or activating the close button.": "Esc কী চেপে বা ক্লোজ বাটনটি সক্রিয় করে এই মডেলটি বন্ধ করা যেতে পারে।",
+  ", opens captions settings dialog": ", ক্যাপশন সেটিংস ডায়ালগ খোলে",
+  ", opens subtitles settings dialog": ", সাবটাইটেল সেটিংস ডায়ালগ খোলে",
+  ", opens descriptions settings dialog": ", বর্ণনা সেটিংস ডায়ালগ খোলে",
+  ", selected": ", নির্বাচিত",
+  "captions settings": "ক্যাপশন সেটিংস",
+  "subtitles settings": "সাবটাইটেল সেটিংস ",
+  "descriptions settings": "বর্ণনা সেটিংস",
+  "Text": "টেক্সট",
+  "White": "সাদা",
+  "Black": "কালো",
+  "Red": "লাল",
+  "Green": "সবুজ",
+  "Blue": "নীল",
+  "Yellow": "হলুদ",
+  "Magenta": "ম্যাজেন্টা",
+  "Cyan": "নীল সবুজ",
+  "Background": "পটভূমি",
+  "Window": "উইন্ডো",
+  "Transparent": "স্বচ্ছ",
+  "Semi-Transparent": "আধা-স্বচ্ছ",
+  "Opaque": "অস্বচ্ছ",
+  "Font Size": "অক্ষরের আকার",
+  "Text Edge Style": "টেক্সট এজ স্টাইল",
+  "None": "কোনোটিই নয়",
+  "Raised": "বাড়ানো হয়েছে",
+  "Depressed": "নামানো হয়েছে",
+  "Uniform": "ইউনিফর্ম",
+  "Dropshadow": "ড্রপশ্যাডো",
+  "Font Family": "অক্ষরের পরিবার",
+  "Proportional Sans-Serif": "সমানুপাতিক সানস-সেরিফ",
+  "Monospace Sans-Serif": "মনোস্পেস সানস-সেরিফ",
+  "Proportional Serif": "সমানুপাতিক সেরিফ",
+  "Monospace Serif": "মনোস্পেস সেরিফ",
+  "Casual": "ক্যাজুয়াল",
+  "Script": "স্ক্রিপ্ট",
+  "Small Caps": "ছোট ক্যাপস",
+  "Reset": "রিসেট",
+  "restore all settings to the default values": "সমস্ত সেটিংস ডিফল্ট মানগুলিতে পুনরুদ্ধার করুন",
+  "Done": "সম্পন্ন",
+  "Caption Settings Dialog": "ক্যাপশন সেটিংস ডায়ালগ",
+  "Beginning of dialog window. Escape will cancel and close the window.": "ডায়লগ উইন্ডোর শুরু। Esc কী বাতিল করবে এবং উইন্ডো বন্ধ করবে।",
+  "End of dialog window.": "ডায়ালগ উইন্ডোর শেষ।",
+  "{1} is loading.": "{1} লোড হচ্ছে.",
+  "Exit Picture-in-Picture": "পিকচার-ইন-পিকচার থেকে প্রস্থান করুন",
+  "Picture-in-Picture": "পিকচার-ইন-পিকচার",
+  "No content": "কোন বিষয়বস্তু নেই"
+});
\ No newline at end of file
diff --git a/media/player/videojs/videojs/lang/bn.json b/media/player/videojs/videojs/lang/bn.json
new file mode 100644
index 00000000000..ee43b92ed56
--- /dev/null
+++ b/media/player/videojs/videojs/lang/bn.json
@@ -0,0 +1,90 @@
+{
+    "Audio Player": "অডিও প্লেয়ার",
+    "Video Player": "ভিডিও প্লেয়ার",
+    "Play": "প্লে করুন",
+    "Pause": "বিরাম",
+    "Replay": "রিপ্লে করুন",
+    "Current Time": "বর্তমান সময়",
+    "Duration": "ব্যাপ্তিকাল",
+    "Remaining Time": "অবশিষ্ট সময়",
+    "Stream Type": "স্ট্রিমের ধরন",
+    "LIVE": "লাইভ",
+    "Seek to live, currently behind live": "লাইভ দেখুন, বর্তমানে লাইভের পিছনে আছে",
+    "Seek to live, currently playing live": "লাইভ দেখুন, বর্তমানে লাইভে আছে",
+    "Loaded": "লোড হয়েছে",
+    "Progress": "প্রোগ্রেস",
+    "Progress Bar": "প্রোগ্রেস বার",
+    "progress bar timing: currentTime={1} duration={2}": "{2} এর {1}",
+    "Fullscreen": "পূর্ণ স্ক্রীন",
+    "Non-Fullscreen": "পূর্ণ স্ক্রীন থেকে প্রস্থান করুন",
+    "Mute": "মিউট",
+    "Unmute": "আনমিউট",
+    "Playback Rate": "প্লেব্যাক রেট",
+    "Subtitles": "সাবটাইটেল",
+    "subtitles off": "সাবটাইটেল বন্ধ করুন",
+    "Captions": "ক্যাপশন",
+    "captions off": "ক্যাপশন বন্ধ করুন",
+    "Chapters": "অধ্যায়",
+    "Descriptions": "বর্ণনা",
+    "descriptions off": "বর্ণনা বন্ধ করুন",
+    "Audio Track": "অডিও গান",
+    "Volume Level": "ভলিউম লেভেল",
+    "You aborted the media playback": "আপনি মিডিয়া প্লেব্যাক বাতিল করেছেন",
+    "A network error caused the media download to fail part-way.": "একটি নেটওয়ার্ক ত্রুটির কারণে মিডিয়া ডাউনলোড আংশিকভাবে ব্যর্থ হয়েছে৷",
+    "The media could not be loaded, either because the server or network failed or because the format is not supported.": "মিডিয়া লোড করা যায়নি, হয় সার্ভার বা নেটওয়ার্ক ব্যর্থ হওয়ার কারণে বা ফর্ম্যাটটি সমর্থিত নয়।",
+    "The media playback was aborted due to a corruption problem or because the media used features your browser did not support.": "মিডিয়া প্লেব্যাক একটি সমস্যার কারণে বা মিডিয়া ব্যবহার করা বৈশিষ্ট্যগুলি আপনার ব্রাউজার সমর্থন করে না বলে বাতিল করা হয়েছে৷",
+    "No compatible source was found for this media.": "এই মিডিয়ার জন্য কোন সামঞ্জস্যপূর্ণ উৎস পাওয়া যায়নি.",
+    "The media is encrypted and we do not have the keys to decrypt it.": "মিডিয়া এনক্রিপ্ট করা হয়েছে এবং এটি ডিক্রিপ্ট করার সমাধান আমাদের কাছে নেই।",
+    "Play Video": "ভিডিও প্লে করুন",
+    "Close": "বন্ধ করুন",
+    "Close Modal Dialog": "মোডাল ডায়ালগ বন্ধ করুন",
+    "Modal Window": "মোডাল উইন্ডো",
+    "This is a modal window": "এটি একটি মোডাল উইন্ডো",
+    "This modal can be closed by pressing the Escape key or activating the close button.": "Esc কী চেপে বা ক্লোজ বাটনটি সক্রিয় করে এই মডেলটি বন্ধ করা যেতে পারে।",
+    ", opens captions settings dialog": ", ক্যাপশন সেটিংস ডায়ালগ খোলে",
+    ", opens subtitles settings dialog": ", সাবটাইটেল সেটিংস ডায়ালগ খোলে",
+    ", opens descriptions settings dialog": ", বর্ণনা সেটিংস ডায়ালগ খোলে",
+    ", selected": ", নির্বাচিত",
+    "captions settings": "ক্যাপশন সেটিংস",
+    "subtitles settings": "সাবটাইটেল সেটিংস ",
+    "descriptions settings": "বর্ণনা সেটিংস",
+    "Text": "টেক্সট",
+    "White": "সাদা",
+    "Black": "কালো",
+    "Red": "লাল",
+    "Green": "সবুজ",
+    "Blue": "নীল",
+    "Yellow": "হলুদ",
+    "Magenta": "ম্যাজেন্টা",
+    "Cyan": "নীল সবুজ",
+    "Background": "পটভূমি",
+    "Window": "উইন্ডো",
+    "Transparent": "স্বচ্ছ",
+    "Semi-Transparent": "আধা-স্বচ্ছ",
+    "Opaque": "অস্বচ্ছ",
+    "Font Size": "অক্ষরের আকার",
+    "Text Edge Style": "টেক্সট এজ স্টাইল",
+    "None": "কোনোটিই নয়",
+    "Raised": "বাড়ানো হয়েছে",
+    "Depressed": "নামানো হয়েছে",
+    "Uniform": "ইউনিফর্ম",
+    "Dropshadow": "ড্রপশ্যাডো",
+    "Font Family": "অক্ষরের পরিবার",
+    "Proportional Sans-Serif": "সমানুপাতিক সানস-সেরিফ",
+    "Monospace Sans-Serif": "মনোস্পেস সানস-সেরিফ",
+    "Proportional Serif": "সমানুপাতিক সেরিফ",
+    "Monospace Serif": "মনোস্পেস সেরিফ",
+    "Casual": "ক্যাজুয়াল",
+    "Script": "স্ক্রিপ্ট",
+    "Small Caps": "ছোট ক্যাপস",
+    "Reset": "রিসেট",
+    "restore all settings to the default values": "সমস্ত সেটিংস ডিফল্ট মানগুলিতে পুনরুদ্ধার করুন",
+    "Done": "সম্পন্ন",
+    "Caption Settings Dialog": "ক্যাপশন সেটিংস ডায়ালগ",
+    "Beginning of dialog window. Escape will cancel and close the window.": "ডায়লগ উইন্ডোর শুরু। Esc কী বাতিল করবে এবং উইন্ডো বন্ধ করবে।",
+    "End of dialog window.": "ডায়ালগ উইন্ডোর শেষ।",
+    "{1} is loading.": "{1} লোড হচ্ছে.",
+    "Exit Picture-in-Picture": "পিকচার-ইন-পিকচার থেকে প্রস্থান করুন",
+    "Picture-in-Picture": "পিকচার-ইন-পিকচার",
+    "No content": "কোন বিষয়বস্তু নেই"
+}
\ No newline at end of file
diff --git a/media/player/videojs/videojs/lang/ca.js b/media/player/videojs/videojs/lang/ca.js
index 1fcdab843ad..0d2fee84ab7 100644
--- a/media/player/videojs/videojs/lang/ca.js
+++ b/media/player/videojs/videojs/lang/ca.js
@@ -9,7 +9,7 @@ videojs.addLanguage('ca', {
   "Loaded": "Carregat",
   "Progress": "Progrés",
   "Fullscreen": "Pantalla completa",
-  "Non-Fullscreen": "Pantalla no completa",
+  "Exit Fullscreen": "Pantalla no completa",
   "Mute": "Silencia",
   "Unmute": "Amb so",
   "Playback Rate": "Velocitat de reproducció",
diff --git a/media/player/videojs/videojs/lang/ca.json b/media/player/videojs/videojs/lang/ca.json
index 8ef0c040004..6e53eea1dfa 100644
--- a/media/player/videojs/videojs/lang/ca.json
+++ b/media/player/videojs/videojs/lang/ca.json
@@ -9,7 +9,7 @@
   "Loaded": "Carregat",
   "Progress": "Progrés",
   "Fullscreen": "Pantalla completa",
-  "Non-Fullscreen": "Pantalla no completa",
+  "Exit Fullscreen": "Pantalla no completa",
   "Mute": "Silencia",
   "Unmute": "Amb so",
   "Playback Rate": "Velocitat de reproducció",
diff --git a/media/player/videojs/videojs/lang/cs.js b/media/player/videojs/videojs/lang/cs.js
index 7164e086a7c..396bbd5e789 100644
--- a/media/player/videojs/videojs/lang/cs.js
+++ b/media/player/videojs/videojs/lang/cs.js
@@ -2,8 +2,8 @@ videojs.addLanguage('cs', {
   "Audio Player": "Audio Přehravač",
   "Video Player": "Video Přehravač",
   "Play": "Přehrát",
-  "Pause": "Pauza",
-  "Replay": "Spustit znovu",
+  "Pause": "Pozastavit",
+  "Replay": "Přehrát znovu",
   "Current Time": "Aktuální čas",
   "Duration": "Doba trvání",
   "Remaining Time": "Zbývající čas",
@@ -14,14 +14,14 @@ videojs.addLanguage('cs', {
   "Progress Bar": "Ukazatel průběhu",
   "progress bar timing: currentTime={1} duration={2}": "{1} z {2}",
   "Fullscreen": "Celá obrazovka",
-  "Non-Fullscreen": "Běžné zobrazení",
-  "Mute": "Ztlumit zvuk",
-  "Unmute": "Zapnout zvuk",
+  "Exit Fullscreen": "Běžné zobrazení",
+  "Mute": "Ztlumit",
+  "Unmute": "Zrušit ztlumení",
   "Playback Rate": "Rychlost přehrávání",
   "Subtitles": "Titulky",
   "subtitles off": "Bez titulků",
   "Captions": "Popisky",
-  "captions off": "Popisky vypnuty",
+  "captions off": "Popisky vypnuté",
   "Chapters": "Kapitoly",
   "Descriptions": "Popisy",
   "descriptions off": "Bez popisů",
diff --git a/media/player/videojs/videojs/lang/cs.json b/media/player/videojs/videojs/lang/cs.json
index 02d30cdf2ab..a14c3a05a86 100644
--- a/media/player/videojs/videojs/lang/cs.json
+++ b/media/player/videojs/videojs/lang/cs.json
@@ -2,8 +2,8 @@
   "Audio Player": "Audio Přehravač",
   "Video Player": "Video Přehravač",
   "Play": "Přehrát",
-  "Pause": "Pauza",
-  "Replay": "Spustit znovu",
+  "Pause": "Pozastavit",
+  "Replay": "Přehrát znovu",
   "Current Time": "Aktuální čas",
   "Duration": "Doba trvání",
   "Remaining Time": "Zbývající čas",
@@ -14,14 +14,14 @@
   "Progress Bar": "Ukazatel průběhu",
   "progress bar timing: currentTime={1} duration={2}": "{1} z {2}",
   "Fullscreen": "Celá obrazovka",
-  "Non-Fullscreen": "Běžné zobrazení",
-  "Mute": "Ztlumit zvuk",
-  "Unmute": "Zapnout zvuk",
+  "Exit Fullscreen": "Běžné zobrazení",
+  "Mute": "Ztlumit",
+  "Unmute": "Zrušit ztlumení",
   "Playback Rate": "Rychlost přehrávání",
   "Subtitles": "Titulky",
   "subtitles off": "Bez titulků",
   "Captions": "Popisky",
-  "captions off": "Popisky vypnuty",
+  "captions off": "Popisky vypnuté",
   "Chapters": "Kapitoly",
   "Descriptions": "Popisy",
   "descriptions off": "Bez popisů",
diff --git a/media/player/videojs/videojs/lang/cy.js b/media/player/videojs/videojs/lang/cy.js
index c33ca577aff..e2bb33038c5 100644
--- a/media/player/videojs/videojs/lang/cy.js
+++ b/media/player/videojs/videojs/lang/cy.js
@@ -14,7 +14,7 @@ videojs.addLanguage('cy', {
   "Progress Bar": "Bar Cynnydd",
   "progress bar timing: currentTime={1} duration={2}": "{1} o {2}",
   "Fullscreen": "Sgrîn Lawn",
-  "Non-Fullscreen": "Ffenestr",
+  "Exit Fullscreen": "Ffenestr",
   "Mute": "Pylu",
   "Unmute": "Dad-bylu",
   "Playback Rate": "Cyfradd Chwarae",
diff --git a/media/player/videojs/videojs/lang/cy.json b/media/player/videojs/videojs/lang/cy.json
index f1e00a078af..4b59086d1de 100644
--- a/media/player/videojs/videojs/lang/cy.json
+++ b/media/player/videojs/videojs/lang/cy.json
@@ -14,7 +14,7 @@
   "Progress Bar":"Bar Cynnydd",
   "progress bar timing: currentTime={1} duration={2}":"{1} o {2}",
   "Fullscreen":"Sgrîn Lawn",
-  "Non-Fullscreen":"Ffenestr",
+  "Exit Fullscreen":"Ffenestr",
   "Mute":"Pylu",
   "Unmute":"Dad-bylu",
   "Playback Rate":"Cyfradd Chwarae",
diff --git a/media/player/videojs/videojs/lang/da.js b/media/player/videojs/videojs/lang/da.js
index 9be95a95cf6..b0ddbccd526 100644
--- a/media/player/videojs/videojs/lang/da.js
+++ b/media/player/videojs/videojs/lang/da.js
@@ -9,7 +9,7 @@ videojs.addLanguage('da', {
   "Loaded": "Indlæst",
   "Progress": "Status",
   "Fullscreen": "Fuldskærm",
-  "Non-Fullscreen": "Luk fuldskærm",
+  "Exit Fullscreen": "Luk fuldskærm",
   "Mute": "Uden lyd",
   "Unmute": "Med lyd",
   "Playback Rate": "Afspilningsrate",
diff --git a/media/player/videojs/videojs/lang/da.json b/media/player/videojs/videojs/lang/da.json
index eeb298d6756..58267850911 100644
--- a/media/player/videojs/videojs/lang/da.json
+++ b/media/player/videojs/videojs/lang/da.json
@@ -9,7 +9,7 @@
   "Loaded": "Indlæst",
   "Progress": "Status",
   "Fullscreen": "Fuldskærm",
-  "Non-Fullscreen": "Luk fuldskærm",
+  "Exit Fullscreen": "Luk fuldskærm",
   "Mute": "Uden lyd",
   "Unmute": "Med lyd",
   "Playback Rate": "Afspilningsrate",
diff --git a/media/player/videojs/videojs/lang/de.js b/media/player/videojs/videojs/lang/de.js
index 23b253cc9bc..71aabdfff1c 100644
--- a/media/player/videojs/videojs/lang/de.js
+++ b/media/player/videojs/videojs/lang/de.js
@@ -10,9 +10,9 @@ videojs.addLanguage('de', {
   "Loaded": "Geladen",
   "Progress": "Status",
   "Fullscreen": "Vollbild",
-  "Non-Fullscreen": "Vollbildmodus beenden",
-  "Mute": "Ton aus",
-  "Unmute": "Ton ein",
+  "Exit Fullscreen": "Vollbildmodus beenden",
+  "Mute": "Stumm schalten",
+  "Unmute": "Ton einschalten",
   "Playback Rate": "Wiedergabegeschwindigkeit",
   "Subtitles": "Untertitel",
   "subtitles off": "Untertitel aus",
@@ -85,5 +85,13 @@ videojs.addLanguage('de', {
   "Seek to live, currently behind live": "Zur Live-Übertragung wechseln. Aktuell wird es nicht live abgespielt.",
   "Seek to live, currently playing live": "Zur Live-Übertragung wechseln. Es wird aktuell live abgespielt.",
   "Exit Picture-in-Picture": "Bild-im-Bild-Modus beenden",
-  "Picture-in-Picture": "Bild-im-Bild-Modus"
+  "Picture-in-Picture": "Bild-im-Bild-Modus",
+  "No content": "Kein Inhalt",
+  "Color": "Farbe",
+  "Opacity": "Deckkraft",
+  "Text Background": "Texthintergrund",
+  "Caption Area Background": "Hintergrund des Untertitelbereichs",
+  "Playing in Picture-in-Picture": "Wird im Bild-im-Bild-Modus wiedergegeben",
+  "Skip forward {1} seconds": "{1} Sekunden vorwärts",
+  "Skip backward {1} seconds": "{1} Sekunden zurück"
 });
\ No newline at end of file
diff --git a/media/player/videojs/videojs/lang/de.json b/media/player/videojs/videojs/lang/de.json
index 42b6768b7bd..acd9124a549 100644
--- a/media/player/videojs/videojs/lang/de.json
+++ b/media/player/videojs/videojs/lang/de.json
@@ -10,9 +10,9 @@
   "Loaded": "Geladen",
   "Progress": "Status",
   "Fullscreen": "Vollbild",
-  "Non-Fullscreen": "Vollbildmodus beenden",
-  "Mute": "Ton aus",
-  "Unmute": "Ton ein",
+  "Exit Fullscreen": "Vollbildmodus beenden",
+  "Mute": "Stumm schalten",
+  "Unmute": "Ton einschalten",
   "Playback Rate": "Wiedergabegeschwindigkeit",
   "Subtitles": "Untertitel",
   "subtitles off": "Untertitel aus",
@@ -85,6 +85,14 @@
   "Seek to live, currently behind live": "Zur Live-Übertragung wechseln. Aktuell wird es nicht live abgespielt.",
   "Seek to live, currently playing live": "Zur Live-Übertragung wechseln. Es wird aktuell live abgespielt.",
   "Exit Picture-in-Picture": "Bild-im-Bild-Modus beenden",
-  "Picture-in-Picture": "Bild-im-Bild-Modus"
+  "Picture-in-Picture": "Bild-im-Bild-Modus",
+  "No content": "Kein Inhalt",
+  "Color": "Farbe",
+  "Opacity": "Deckkraft",
+  "Text Background": "Texthintergrund",
+  "Caption Area Background": "Hintergrund des Untertitelbereichs",
+  "Playing in Picture-in-Picture": "Wird im Bild-im-Bild-Modus wiedergegeben",
+  "Skip forward {1} seconds": "{1} Sekunden vorwärts",
+  "Skip backward {1} seconds": "{1} Sekunden zurück"
 }
 
diff --git a/media/player/videojs/videojs/lang/el.js b/media/player/videojs/videojs/lang/el.js
index 795b430d2d1..9f236ce0c8f 100644
--- a/media/player/videojs/videojs/lang/el.js
+++ b/media/player/videojs/videojs/lang/el.js
@@ -9,7 +9,7 @@ videojs.addLanguage('el', {
   "Loaded": "Φόρτωση επιτυχής",
   "Progress": "Πρόοδος",
   "Fullscreen": "Πλήρης οθόνη",
-  "Non-Fullscreen": "Έξοδος από πλήρη οθόνη",
+  "Exit Fullscreen": "Έξοδος από πλήρη οθόνη",
   "Mute": "Σίγαση",
   "Unmute": "Kατάργηση σίγασης",
   "Playback Rate": "Ρυθμός αναπαραγωγής",
diff --git a/media/player/videojs/videojs/lang/el.json b/media/player/videojs/videojs/lang/el.json
index 16b48b83f17..7211ee48379 100644
--- a/media/player/videojs/videojs/lang/el.json
+++ b/media/player/videojs/videojs/lang/el.json
@@ -9,7 +9,7 @@
   "Loaded": "Φόρτωση επιτυχής",
   "Progress": "Πρόοδος",
   "Fullscreen": "Πλήρης οθόνη",
-  "Non-Fullscreen": "Έξοδος από πλήρη οθόνη",
+  "Exit Fullscreen": "Έξοδος από πλήρη οθόνη",
   "Mute": "Σίγαση",
   "Unmute": "Kατάργηση σίγασης",
   "Playback Rate": "Ρυθμός αναπαραγωγής",
diff --git a/media/player/videojs/videojs/lang/en-GB.js b/media/player/videojs/videojs/lang/en-GB.js
new file mode 100644
index 00000000000..73653fb64a2
--- /dev/null
+++ b/media/player/videojs/videojs/lang/en-GB.js
@@ -0,0 +1,3 @@
+videojs.addLanguage('en-GB', {
+  "Color": "Colour"
+});
\ No newline at end of file
diff --git a/media/player/videojs/videojs/lang/en-GB.json b/media/player/videojs/videojs/lang/en-GB.json
new file mode 100644
index 00000000000..7010b643323
--- /dev/null
+++ b/media/player/videojs/videojs/lang/en-GB.json
@@ -0,0 +1,4 @@
+{
+  "Color": "Colour"
+}
+
diff --git a/media/player/videojs/videojs/lang/en.js b/media/player/videojs/videojs/lang/en.js
index ef630d1a88f..a7b8b168ca0 100644
--- a/media/player/videojs/videojs/lang/en.js
+++ b/media/player/videojs/videojs/lang/en.js
@@ -16,7 +16,7 @@ videojs.addLanguage('en', {
   "Progress Bar": "Progress Bar",
   "progress bar timing: currentTime={1} duration={2}": "{1} of {2}",
   "Fullscreen": "Fullscreen",
-  "Non-Fullscreen": "Exit Fullscreen",
+  "Exit Fullscreen": "Exit Fullscreen",
   "Mute": "Mute",
   "Unmute": "Unmute",
   "Playback Rate": "Playback Rate",
@@ -85,5 +85,13 @@ videojs.addLanguage('en', {
   "End of dialog window.": "End of dialog window.",
   "{1} is loading.": "{1} is loading.",
   "Exit Picture-in-Picture": "Exit Picture-in-Picture",
-  "Picture-in-Picture": "Picture-in-Picture"
+  "Picture-in-Picture": "Picture-in-Picture",
+  "No content": "No content",
+  "Color": "Color",
+  "Opacity": "Opacity",
+  "Text Background": "Text Background",
+  "Caption Area Background": "Caption Area Background",
+  "Playing in Picture-in-Picture": "Playing in Picture-in-Picture",
+  "Skip backward {1} seconds": "Skip backward {1} seconds",
+  "Skip forward {1} seconds": "Skip forward {1} seconds"
 });
\ No newline at end of file
diff --git a/media/player/videojs/videojs/lang/en.json b/media/player/videojs/videojs/lang/en.json
index 649120c5557..2ab55b7c0c2 100644
--- a/media/player/videojs/videojs/lang/en.json
+++ b/media/player/videojs/videojs/lang/en.json
@@ -16,7 +16,7 @@
   "Progress Bar": "Progress Bar",
   "progress bar timing: currentTime={1} duration={2}": "{1} of {2}",
   "Fullscreen": "Fullscreen",
-  "Non-Fullscreen": "Exit Fullscreen",
+  "Exit Fullscreen": "Exit Fullscreen",
   "Mute": "Mute",
   "Unmute": "Unmute",
   "Playback Rate": "Playback Rate",
@@ -85,5 +85,13 @@
   "End of dialog window.": "End of dialog window.",
   "{1} is loading.": "{1} is loading.",
   "Exit Picture-in-Picture": "Exit Picture-in-Picture",
-  "Picture-in-Picture": "Picture-in-Picture"
+  "Picture-in-Picture": "Picture-in-Picture",
+  "No content": "No content",
+  "Color": "Color",
+  "Opacity": "Opacity",
+  "Text Background": "Text Background",
+  "Caption Area Background": "Caption Area Background",
+  "Playing in Picture-in-Picture": "Playing in Picture-in-Picture",
+  "Skip backward {1} seconds": "Skip backward {1} seconds",
+  "Skip forward {1} seconds": "Skip forward {1} seconds"
 }
diff --git a/media/player/videojs/videojs/lang/es.js b/media/player/videojs/videojs/lang/es.js
index 8656b790616..1160cfc2929 100644
--- a/media/player/videojs/videojs/lang/es.js
+++ b/media/player/videojs/videojs/lang/es.js
@@ -10,9 +10,9 @@ videojs.addLanguage('es', {
   "Loaded": "Cargado",
   "Progress": "Progreso",
   "Fullscreen": "Pantalla completa",
-  "Non-Fullscreen": "Pantalla no completa",
-  "Mute": "Silenciar",
-  "Unmute": "No silenciado",
+  "Exit Fullscreen": "Pantalla no completa",
+  "Mute": "Desactivar el sonido",
+  "Unmute": "Activar el sonido",
   "Playback Rate": "Velocidad de reproducción",
   "Subtitles": "Subtítulos",
   "subtitles off": "Subtítulos desactivados",
@@ -85,5 +85,10 @@ videojs.addLanguage('es', {
   "End of dialog window.": "Final de la ventana de diálogo.",
   "{1} is loading.": "{1} se está cargando.",
   "Exit Picture-in-Picture": "Salir de imagen sobre imagen",
-  "Picture-in-Picture": "Imagen sobre imagen"
+  "Picture-in-Picture": "Imagen sobre imagen",
+  "No content": "Sin contenido",
+  "Color": "Color",
+  "Opacity": "Opacidad",
+  "Text Background": "Fondo del texto",
+  "Caption Area Background": "Fondo del área de subtítulos"
 });
\ No newline at end of file
diff --git a/media/player/videojs/videojs/lang/es.json b/media/player/videojs/videojs/lang/es.json
index cd0b11cca71..96405bbbcd5 100644
--- a/media/player/videojs/videojs/lang/es.json
+++ b/media/player/videojs/videojs/lang/es.json
@@ -10,9 +10,9 @@
   "Loaded": "Cargado",
   "Progress": "Progreso",
   "Fullscreen": "Pantalla completa",
-  "Non-Fullscreen": "Pantalla no completa",
-  "Mute": "Silenciar",
-  "Unmute": "No silenciado",
+  "Exit Fullscreen": "Pantalla no completa",
+  "Mute": "Desactivar el sonido",
+  "Unmute": "Activar el sonido",
   "Playback Rate": "Velocidad de reproducción",
   "Subtitles": "Subtítulos",
   "subtitles off": "Subtítulos desactivados",
@@ -85,5 +85,10 @@
   "End of dialog window.": "Final de la ventana de diálogo.",
   "{1} is loading.": "{1} se está cargando.",
   "Exit Picture-in-Picture": "Salir de imagen sobre imagen",
-  "Picture-in-Picture": "Imagen sobre imagen"
+  "Picture-in-Picture": "Imagen sobre imagen",
+  "No content": "Sin contenido",
+  "Color": "Color",
+  "Opacity": "Opacidad",
+  "Text Background": "Fondo del texto",
+  "Caption Area Background": "Fondo del área de subtítulos"
 }
diff --git a/media/player/videojs/videojs/lang/et.js b/media/player/videojs/videojs/lang/et.js
index 32c598917a6..e68fec841bf 100644
--- a/media/player/videojs/videojs/lang/et.js
+++ b/media/player/videojs/videojs/lang/et.js
@@ -16,7 +16,7 @@ videojs.addLanguage('et', {
   "Progress Bar": "Edenemisriba ",
   "progress bar timing: currentTime={1} duration={2}": "{1} / {2}",
   "Fullscreen": "Täisekraan",
-  "Non-Fullscreen": "Välju täisekraanist",
+  "Exit Fullscreen": "Välju täisekraanist",
   "Mute": "Vaigista",
   "Unmute": "Lõpeta vaigistus",
   "Playback Rate": "Taasesituse kiirus",
diff --git a/media/player/videojs/videojs/lang/et.json b/media/player/videojs/videojs/lang/et.json
index a451408395a..0b2d995780a 100644
--- a/media/player/videojs/videojs/lang/et.json
+++ b/media/player/videojs/videojs/lang/et.json
@@ -16,7 +16,7 @@
   "Progress Bar": "Edenemisriba ",
   "progress bar timing: currentTime={1} duration={2}": "{1} / {2}",
   "Fullscreen": "Täisekraan",
-  "Non-Fullscreen": "Välju täisekraanist",
+  "Exit Fullscreen": "Välju täisekraanist",
   "Mute": "Vaigista",
   "Unmute": "Lõpeta vaigistus",
   "Playback Rate": "Taasesituse kiirus",
diff --git a/media/player/videojs/videojs/lang/eu.js b/media/player/videojs/videojs/lang/eu.js
index 3125b82e180..d94b868960f 100644
--- a/media/player/videojs/videojs/lang/eu.js
+++ b/media/player/videojs/videojs/lang/eu.js
@@ -16,7 +16,7 @@ videojs.addLanguage('eu', {
   "Progress Bar": "Aurrerapen barra",
   "progress bar timing: currentTime={1} duration={2}": "{1} / {2}",
   "Fullscreen": "Pantaila osoa",
-  "Non-Fullscreen": "Irten pantaila osotik",
+  "Exit Fullscreen": "Irten pantaila osotik",
   "Mute": "Ixildu",
   "Unmute": "Soinua jarri",
   "Playback Rate": "Abiadura",
diff --git a/media/player/videojs/videojs/lang/eu.json b/media/player/videojs/videojs/lang/eu.json
index abae9b7bf40..976549959d9 100644
--- a/media/player/videojs/videojs/lang/eu.json
+++ b/media/player/videojs/videojs/lang/eu.json
@@ -16,7 +16,7 @@
   "Progress Bar": "Aurrerapen barra",
   "progress bar timing: currentTime={1} duration={2}": "{1} / {2}",
   "Fullscreen": "Pantaila osoa",
-  "Non-Fullscreen": "Irten pantaila osotik",
+  "Exit Fullscreen": "Irten pantaila osotik",
   "Mute": "Ixildu",
   "Unmute": "Soinua jarri",
   "Playback Rate": "Abiadura",
diff --git a/media/player/videojs/videojs/lang/fa.js b/media/player/videojs/videojs/lang/fa.js
index fa79f68f821..eba46281654 100644
--- a/media/player/videojs/videojs/lang/fa.js
+++ b/media/player/videojs/videojs/lang/fa.js
@@ -1,6 +1,6 @@
 videojs.addLanguage('fa', {
-  "Audio Player": "پخش کننده صوت",
-  "Video Player": "پخش کننده ویدیو",
+  "Audio Player": "پخش‌کنندهٔ صوت",
+  "Video Player": "پخش‌کنندهٔ ویدیو",
   "Play": "پخش",
   "Pause": "توقف",
   "Replay": "پخش مجدد",
@@ -9,18 +9,18 @@ videojs.addLanguage('fa', {
   "Remaining Time": "زمان باقی‌مانده",
   "Stream Type": "نوع استریم",
   "LIVE": "زنده",
-  "Seek to live, currently behind live": "پخش زنده، هم اکنون عقب تر از پخش زنده",
+  "Seek to live, currently behind live": "پخش زنده، هم‌اکنون عقب‌تر از پخش زنده",
   "Seek to live, currently playing live": "پخش زنده، در حال پخش زنده",
-  "Loaded": "بارگیری شده",
+  "Loaded": "بارگیری‌شده",
   "Progress": "پیشرفت",
   "Progress Bar": "نوار پیشرفت",
   "progress bar timing: currentTime={1} duration={2}": "{1} از {2}",
   "Fullscreen": "تمام‌صفحه",
-  "Non-Fullscreen": "غیر تمام‌صفحه",
-  "Mute": "بی صدا",
+  "Exit Fullscreen": "غیر تمام‌صفحه",
+  "Mute": "بی‌صدا",
   "Unmute": "صدادار",
   "Playback Rate": "سرعت پخش",
-  "Subtitles": "زیرنویس ها",
+  "Subtitles": "زیرنویس‌ها",
   "subtitles off": "بدون زیرنویس",
   "Captions": "توضیحات",
   "captions off": "بدون توضیحات",
@@ -31,19 +31,19 @@ videojs.addLanguage('fa', {
   "Volume Level": "سطح صدا",
   "You aborted the media playback": "شما پخش رسانه را قطع نمودید",
   "A network error caused the media download to fail part-way.": "وقوع مشکلی در شبکه باعث اختلال در دانلود رسانه شد.",
-  "The media could not be loaded, either because the server or network failed or because the format is not supported.": ".رسانه قابل بارگیری نیست. ممکن است مشکلی در شبکه یا سرور رخ داده باشد یا فرمت رسانه در دستگاه شما پشتیبانی نشود",
-  "The media playback was aborted due to a corruption problem or because the media used features your browser did not support.": "پخش  رسانه به علت اشکال در آن یا عدم پشتیبانی مرورگر شما قطع شد.",
+  "The media could not be loaded, either because the server or network failed or because the format is not supported.": "رسانه قابل بارگیری نیست. ممکن است مشکلی در شبکه یا سرور رخ داده باشد یا قالب رسانه در دستگاه شما پشتیبانی نشود.",
+  "The media playback was aborted due to a corruption problem or because the media used features your browser did not support.": "پخش  رسانه به‌علت اشکال در آن یا عدم پشتیبانی مرورگر شما قطع شد.",
   "No compatible source was found for this media.": "هیچ منبع سازگاری برای پخش این رسانه پیدا نشد.",
-  "The media is encrypted and we do not have the keys to decrypt it.": "این رسانه رمزنگاری شده است و کلیدهای رمزگشایی آن موجود نیست.",
+  "The media is encrypted and we do not have the keys to decrypt it.": "این رسانه رمزنگاری شده‌است و کلیدهای رمزگشایی آن موجود نیست.",
   "Play Video": "پخش ویدیو",
   "Close": "بستن",
   "Close Modal Dialog": "بستن پنجره",
-  "Modal Window": "پنجره محاوره",
+  "Modal Window": "پنجرهٔ محاوره",
   "This is a modal window": "این پنجره قابل بستن است",
-  "This modal can be closed by pressing the Escape key or activating the close button.": "این پنجره با کلید Escape یا دکمه بستن قابل بسته شدن میباشد.",
-  ", opens captions settings dialog": ", تنظیمات توضیجات را باز میکند",
-  ", opens subtitles settings dialog": ", تنظیمات زیرنویس را باز میکند",
-  ", opens descriptions settings dialog": ", تنظیمات توصیفات را باز میکند",
+  "This modal can be closed by pressing the Escape key or activating the close button.": "این پنجره با کلید Escape یا دکمهٔ بستن قابل بسته‌شدن است.",
+  ", opens captions settings dialog": "، تنظیمات توضیجات را باز می‌کند",
+  ", opens subtitles settings dialog": "، تنظیمات زیرنویس را باز می‌کند",
+  ", opens descriptions settings dialog": "، تنظیمات توصیفات را باز می‌کند",
   ", selected": "، انتخاب شد",
   "captions settings": "تنظیمات توضیحات",
   "subtitles settings": "تنظیمات زیرنویس",
@@ -57,33 +57,35 @@ videojs.addLanguage('fa', {
   "Yellow": "زرد",
   "Magenta": "ارغوانی",
   "Cyan": "فیروزه‌ای",
-  "Background": "پس زمینه",
+  "Background": "پس‌زمینه",
   "Window": "پنجره",
   "Transparent": "شفاف",
-  "Semi-Transparent": "نیمه شفاف",
+  "Semi-Transparent": "نیمه‌شفاف",
   "Opaque": "مات",
-  "Font Size": "اندازه قلم",
-  "Text Edge Style": "سبک لبه متن",
+  "Font Size": "اندازهٔ قلم",
+  "Text Edge Style": "سبک لبهٔ متن",
   "None": "هیچ",
   "Raised": "برجسته",
   "Depressed": "فرورفته",
   "Uniform": "یکنواخت",
-  "Dropshadow": "سایه دار",
+  "Dropshadow": "سایه‌دار",
   "Font Family": "نوع قلم",
   "Proportional Sans-Serif": "Sans-Serif متناسب",
-  "Monospace Sans-Serif": "Sans-Serif هم عرض",
+  "Monospace Sans-Serif": "Sans-Serif هم‌عرض",
   "Proportional Serif": "Serif متناسب",
-  "Monospace Serif": "Serif هم عرض",
+  "Monospace Serif": "Serif هم‌عرض",
   "Casual": "فانتزی",
-  "Script": "دست خط",
+  "Script": "دست‌خط",
   "Small Caps": "حروف بزرگ کوچک",
   "Reset": "تنظیم مجدد",
-  "restore all settings to the default values": "بازنشانی همه تنظیمات به مقادیر پیش‌فرض",
+  "restore all settings to the default values": "بازنشانی همهٔ تنظیمات به مقادیر پیش‌فرض",
   "Done": "انجام",
-  "Caption Settings Dialog": "پنجره تنظیمات توضیحات",
-  "Beginning of dialog window. Escape will cancel and close the window.": "شروع پنجره محاوره‌ای. دکمه Escape عملیات را لغو کرده و پنجره را میبندد.",
-  "End of dialog window.": "پایان پنجره محاوره‌ای.",
+  "Caption Settings Dialog": "پنجرهٔ تنظیمات توضیحات",
+  "Beginning of dialog window. Escape will cancel and close the window.": "شروع پنجرهٔ محاوره‌ای. دکمهٔ Escape عملیات را لغو کرده و پنجره را می‌بندد.",
+  "End of dialog window.": "پایان پنجرهٔ محاوره‌ای.",
   "{1} is loading.": "{1} در حال بارگیری است.",
   "Exit Picture-in-Picture": "خروج از حالت تصویر در تصویر",
-  "Picture-in-Picture": "تصویر در تصویر"
+  "Picture-in-Picture": "تصویر در تصویر",
+  "Skip forward {1} seconds": "{1} ثانیه بعد",
+  "Skip backward {1} seconds": "{1} ثانیه قبل"
 });
\ No newline at end of file
diff --git a/media/player/videojs/videojs/lang/fa.json b/media/player/videojs/videojs/lang/fa.json
index 0ddd8514073..b3b26d67c13 100644
--- a/media/player/videojs/videojs/lang/fa.json
+++ b/media/player/videojs/videojs/lang/fa.json
@@ -1,6 +1,6 @@
 {
-  "Audio Player": "پخش کننده صوت",
-  "Video Player": "پخش کننده ویدیو",
+  "Audio Player": "پخش‌کنندهٔ صوت",
+  "Video Player": "پخش‌کنندهٔ ویدیو",
   "Play": "پخش",
   "Pause": "توقف",
   "Replay": "پخش مجدد",
@@ -9,18 +9,18 @@
   "Remaining Time": "زمان باقی‌مانده",
   "Stream Type": "نوع استریم",
   "LIVE": "زنده",
-  "Seek to live, currently behind live": "پخش زنده، هم اکنون عقب تر از پخش زنده",
+  "Seek to live, currently behind live": "پخش زنده، هم‌اکنون عقب‌تر از پخش زنده",
   "Seek to live, currently playing live": "پخش زنده، در حال پخش زنده",
-  "Loaded": "بارگیری شده",
+  "Loaded": "بارگیری‌شده",
   "Progress": "پیشرفت",
   "Progress Bar": "نوار پیشرفت",
   "progress bar timing: currentTime={1} duration={2}": "{1} از {2}",
   "Fullscreen": "تمام‌صفحه",
-  "Non-Fullscreen": "غیر تمام‌صفحه",
-  "Mute": "بی صدا",
+  "Exit Fullscreen": "غیر تمام‌صفحه",
+  "Mute": "بی‌صدا",
   "Unmute": "صدادار",
   "Playback Rate": "سرعت پخش",
-  "Subtitles": "زیرنویس ها",
+  "Subtitles": "زیرنویس‌ها",
   "subtitles off": "بدون زیرنویس",
   "Captions": "توضیحات",
   "captions off": "بدون توضیحات",
@@ -31,19 +31,19 @@
   "Volume Level": "سطح صدا",
   "You aborted the media playback": "شما پخش رسانه را قطع نمودید",
   "A network error caused the media download to fail part-way.": "وقوع مشکلی در شبکه باعث اختلال در دانلود رسانه شد.",
-  "The media could not be loaded, either because the server or network failed or because the format is not supported.": ".رسانه قابل بارگیری نیست. ممکن است مشکلی در شبکه یا سرور رخ داده باشد یا فرمت رسانه در دستگاه شما پشتیبانی نشود",
-  "The media playback was aborted due to a corruption problem or because the media used features your browser did not support.": "پخش  رسانه به علت اشکال در آن یا عدم پشتیبانی مرورگر شما قطع شد.",
+  "The media could not be loaded, either because the server or network failed or because the format is not supported.": "رسانه قابل بارگیری نیست. ممکن است مشکلی در شبکه یا سرور رخ داده باشد یا قالب رسانه در دستگاه شما پشتیبانی نشود.",
+  "The media playback was aborted due to a corruption problem or because the media used features your browser did not support.": "پخش  رسانه به‌علت اشکال در آن یا عدم پشتیبانی مرورگر شما قطع شد.",
   "No compatible source was found for this media.": "هیچ منبع سازگاری برای پخش این رسانه پیدا نشد.",
-  "The media is encrypted and we do not have the keys to decrypt it.": "این رسانه رمزنگاری شده است و کلیدهای رمزگشایی آن موجود نیست.",
+  "The media is encrypted and we do not have the keys to decrypt it.": "این رسانه رمزنگاری شده‌است و کلیدهای رمزگشایی آن موجود نیست.",
   "Play Video": "پخش ویدیو",
   "Close": "بستن",
   "Close Modal Dialog": "بستن پنجره",
-  "Modal Window": "پنجره محاوره",
+  "Modal Window": "پنجرهٔ محاوره",
   "This is a modal window": "این پنجره قابل بستن است",
-  "This modal can be closed by pressing the Escape key or activating the close button.": "این پنجره با کلید Escape یا دکمه بستن قابل بسته شدن میباشد.",
-  ", opens captions settings dialog": ", تنظیمات توضیجات را باز میکند",
-  ", opens subtitles settings dialog": ", تنظیمات زیرنویس را باز میکند",
-  ", opens descriptions settings dialog": ", تنظیمات توصیفات را باز میکند",
+  "This modal can be closed by pressing the Escape key or activating the close button.": "این پنجره با کلید Escape یا دکمهٔ بستن قابل بسته‌شدن است.",
+  ", opens captions settings dialog": "، تنظیمات توضیجات را باز می‌کند",
+  ", opens subtitles settings dialog": "، تنظیمات زیرنویس را باز می‌کند",
+  ", opens descriptions settings dialog": "، تنظیمات توصیفات را باز می‌کند",
   ", selected": "، انتخاب شد",
   "captions settings": "تنظیمات توضیحات",
   "subtitles settings": "تنظیمات زیرنویس",
@@ -57,33 +57,35 @@
   "Yellow": "زرد",
   "Magenta": "ارغوانی",
   "Cyan": "فیروزه‌ای",
-  "Background": "پس زمینه",
+  "Background": "پس‌زمینه",
   "Window": "پنجره",
   "Transparent": "شفاف",
-  "Semi-Transparent": "نیمه شفاف",
+  "Semi-Transparent": "نیمه‌شفاف",
   "Opaque": "مات",
-  "Font Size": "اندازه قلم",
-  "Text Edge Style": "سبک لبه متن",
+  "Font Size": "اندازهٔ قلم",
+  "Text Edge Style": "سبک لبهٔ متن",
   "None": "هیچ",
   "Raised": "برجسته",
   "Depressed": "فرورفته",
   "Uniform": "یکنواخت",
-  "Dropshadow": "سایه دار",
+  "Dropshadow": "سایه‌دار",
   "Font Family": "نوع قلم",
   "Proportional Sans-Serif": "Sans-Serif متناسب",
-  "Monospace Sans-Serif": "Sans-Serif هم عرض",
+  "Monospace Sans-Serif": "Sans-Serif هم‌عرض",
   "Proportional Serif": "Serif متناسب",
-  "Monospace Serif": "Serif هم عرض",
+  "Monospace Serif": "Serif هم‌عرض",
   "Casual": "فانتزی",
-  "Script": "دست خط",
+  "Script": "دست‌خط",
   "Small Caps": "حروف بزرگ کوچک",
   "Reset": "تنظیم مجدد",
-  "restore all settings to the default values": "بازنشانی همه تنظیمات به مقادیر پیش‌فرض",
+  "restore all settings to the default values": "بازنشانی همهٔ تنظیمات به مقادیر پیش‌فرض",
   "Done": "انجام",
-  "Caption Settings Dialog": "پنجره تنظیمات توضیحات",
-  "Beginning of dialog window. Escape will cancel and close the window.": "شروع پنجره محاوره‌ای. دکمه Escape عملیات را لغو کرده و پنجره را میبندد.",
-  "End of dialog window.": "پایان پنجره محاوره‌ای.",
+  "Caption Settings Dialog": "پنجرهٔ تنظیمات توضیحات",
+  "Beginning of dialog window. Escape will cancel and close the window.": "شروع پنجرهٔ محاوره‌ای. دکمهٔ Escape عملیات را لغو کرده و پنجره را می‌بندد.",
+  "End of dialog window.": "پایان پنجرهٔ محاوره‌ای.",
   "{1} is loading.": "{1} در حال بارگیری است.",
   "Exit Picture-in-Picture": "خروج از حالت تصویر در تصویر",
-  "Picture-in-Picture": "تصویر در تصویر"
+  "Picture-in-Picture": "تصویر در تصویر",
+  "Skip forward {1} seconds": "{1} ثانیه بعد",
+  "Skip backward {1} seconds": "{1} ثانیه قبل"
 }
diff --git a/media/player/videojs/videojs/lang/fi.js b/media/player/videojs/videojs/lang/fi.js
index e14fb8c9f06..95549bb8eef 100644
--- a/media/player/videojs/videojs/lang/fi.js
+++ b/media/player/videojs/videojs/lang/fi.js
@@ -9,7 +9,7 @@ videojs.addLanguage('fi', {
   "Loaded": "Ladattu",
   "Progress": "Edistyminen",
   "Fullscreen": "Koko näyttö",
-  "Non-Fullscreen": "Koko näyttö pois",
+  "Exit Fullscreen": "Koko näyttö pois",
   "Mute": "Ääni pois",
   "Unmute": "Ääni päällä",
   "Playback Rate": "Toistonopeus",
diff --git a/media/player/videojs/videojs/lang/fi.json b/media/player/videojs/videojs/lang/fi.json
index 9cd419b086c..d9bd4757890 100644
--- a/media/player/videojs/videojs/lang/fi.json
+++ b/media/player/videojs/videojs/lang/fi.json
@@ -9,7 +9,7 @@
   "Loaded": "Ladattu",
   "Progress": "Edistyminen",
   "Fullscreen": "Koko näyttö",
-  "Non-Fullscreen": "Koko näyttö pois",
+  "Exit Fullscreen": "Koko näyttö pois",
   "Mute": "Ääni pois",
   "Unmute": "Ääni päällä",
   "Playback Rate": "Toistonopeus",
diff --git a/media/player/videojs/videojs/lang/fr.js b/media/player/videojs/videojs/lang/fr.js
index cf5b57cea6f..a7e9d7c3ca6 100644
--- a/media/player/videojs/videojs/lang/fr.js
+++ b/media/player/videojs/videojs/lang/fr.js
@@ -9,14 +9,16 @@ videojs.addLanguage('fr', {
   "Remaining Time": "Temps restant",
   "Stream Type": "Type de flux",
   "LIVE": "EN DIRECT",
+  "Seek to live, currently behind live": "Rechercher le direct, actuellement après le direct",
+  "Seek to live, currently playing live": "Rechercher le direct, le direct actuellement en cours de lecture",
   "Loaded": "Chargé",
   "Progress": "Progression",
   "Progress Bar": "Barre de progression",
   "progress bar timing: currentTime={1} duration={2}": "{1} de {2}",
   "Fullscreen": "Plein écran",
-  "Non-Fullscreen": "Fenêtré",
-  "Mute": "Sourdine",
-  "Unmute": "Son activé",
+  "Exit Fullscreen": "Fenêtré",
+  "Mute": "Mettre en sourdine",
+  "Unmute": "Activer le son",
   "Playback Rate": "Vitesse de lecture",
   "Subtitles": "Sous-titres",
   "subtitles off": "Sous-titres désactivés",
@@ -80,5 +82,13 @@ videojs.addLanguage('fr', {
   "Done": "Terminé",
   "Caption Settings Dialog": "Boîte de dialogue des paramètres des sous-titres transcrits",
   "Beginning of dialog window. Escape will cancel and close the window.": "Début de la fenêtre de dialogue. La touche d'échappement annulera et fermera la fenêtre.",
-  "End of dialog window.": "Fin de la fenêtre de dialogue."
+  "End of dialog window.": "Fin de la fenêtre de dialogue.",
+  "Exit Picture-in-Picture": "Quitter le mode image dans l'image",
+  "Picture-in-Picture": "Image dans l'image",
+  "{1} is loading.": "{1} en cours de chargement.",
+  "No content": "Aucun contenu",
+  "Color": "Couleur",
+  "Opacity": "Opacité",
+  "Text Background": "Arrière-plan du texte",
+  "Caption Area Background": "Arrière-plan de la zone de sous-titre"
 });
\ No newline at end of file
diff --git a/media/player/videojs/videojs/lang/fr.json b/media/player/videojs/videojs/lang/fr.json
index 8bfeafde60d..3d822a4fab4 100644
--- a/media/player/videojs/videojs/lang/fr.json
+++ b/media/player/videojs/videojs/lang/fr.json
@@ -9,14 +9,16 @@
   "Remaining Time": "Temps restant",
   "Stream Type": "Type de flux",
   "LIVE": "EN DIRECT",
+  "Seek to live, currently behind live": "Rechercher le direct, actuellement après le direct",
+  "Seek to live, currently playing live": "Rechercher le direct, le direct actuellement en cours de lecture",
   "Loaded": "Chargé",
   "Progress": "Progression",
   "Progress Bar": "Barre de progression",
   "progress bar timing: currentTime={1} duration={2}": "{1} de {2}",
   "Fullscreen": "Plein écran",
-  "Non-Fullscreen": "Fenêtré",
-  "Mute": "Sourdine",
-  "Unmute": "Son activé",
+  "Exit Fullscreen": "Fenêtré",
+  "Mute": "Mettre en sourdine",
+  "Unmute": "Activer le son",
   "Playback Rate": "Vitesse de lecture",
   "Subtitles": "Sous-titres",
   "subtitles off": "Sous-titres désactivés",
@@ -80,5 +82,13 @@
   "Done": "Terminé",
   "Caption Settings Dialog": "Boîte de dialogue des paramètres des sous-titres transcrits",
   "Beginning of dialog window. Escape will cancel and close the window.": "Début de la fenêtre de dialogue. La touche d'échappement annulera et fermera la fenêtre.",
-  "End of dialog window.": "Fin de la fenêtre de dialogue."
+  "End of dialog window.": "Fin de la fenêtre de dialogue.",
+  "Exit Picture-in-Picture": "Quitter le mode image dans l'image",
+  "Picture-in-Picture": "Image dans l'image",
+  "{1} is loading.": "{1} en cours de chargement.",
+  "No content": "Aucun contenu",
+  "Color": "Couleur",
+  "Opacity": "Opacité",
+  "Text Background": "Arrière-plan du texte",
+  "Caption Area Background": "Arrière-plan de la zone de sous-titre"
 }
diff --git a/media/player/videojs/videojs/lang/gd.js b/media/player/videojs/videojs/lang/gd.js
index 51ba7e773f3..ccf004f7091 100644
--- a/media/player/videojs/videojs/lang/gd.js
+++ b/media/player/videojs/videojs/lang/gd.js
@@ -16,7 +16,7 @@ videojs.addLanguage('gd', {
   "Progress Bar": "Bàr adhartais",
   "progress bar timing: currentTime={1} duration={2}": "{1} à {2}",
   "Fullscreen": "Làn-sgrìn",
-  "Non-Fullscreen": "Fàg modh làn-sgrìn",
+  "Exit Fullscreen": "Fàg modh làn-sgrìn",
   "Mute": "Mùch",
   "Unmute": "Dì-mhùch",
   "Playback Rate": "Reat na cluiche",
diff --git a/media/player/videojs/videojs/lang/gd.json b/media/player/videojs/videojs/lang/gd.json
old mode 100644
new mode 100755
index 76a598c4f95..cfe6e883c4a
--- a/media/player/videojs/videojs/lang/gd.json
+++ b/media/player/videojs/videojs/lang/gd.json
@@ -16,7 +16,7 @@
   "Progress Bar": "Bàr adhartais",
   "progress bar timing: currentTime={1} duration={2}": "{1} à {2}",
   "Fullscreen": "Làn-sgrìn",
-  "Non-Fullscreen": "Fàg modh làn-sgrìn",
+  "Exit Fullscreen": "Fàg modh làn-sgrìn",
   "Mute": "Mùch",
   "Unmute": "Dì-mhùch",
   "Playback Rate": "Reat na cluiche",
diff --git a/media/player/videojs/videojs/lang/gl.js b/media/player/videojs/videojs/lang/gl.js
index fcef9ed109a..26ac04daaad 100644
--- a/media/player/videojs/videojs/lang/gl.js
+++ b/media/player/videojs/videojs/lang/gl.js
@@ -16,7 +16,7 @@ videojs.addLanguage('gl', {
   "Progress Bar": "Barra de progreso",
   "progress bar timing: currentTime={1} duration={2}": "{1} de {2}",
   "Fullscreen": "Pantalla completa",
-  "Non-Fullscreen": "Xanela",
+  "Exit Fullscreen": "Xanela",
   "Mute": "Silenciar",
   "Unmute": "Son activado",
   "Playback Rate": "Velocidade de reprodución",
diff --git a/media/player/videojs/videojs/lang/gl.json b/media/player/videojs/videojs/lang/gl.json
index b777c6c4949..2ebcd3ae1f9 100644
--- a/media/player/videojs/videojs/lang/gl.json
+++ b/media/player/videojs/videojs/lang/gl.json
@@ -16,7 +16,7 @@
   "Progress Bar": "Barra de progreso",
   "progress bar timing: currentTime={1} duration={2}": "{1} de {2}",
   "Fullscreen": "Pantalla completa",
-  "Non-Fullscreen": "Xanela",
+  "Exit Fullscreen": "Xanela",
   "Mute": "Silenciar",
   "Unmute": "Son activado",
   "Playback Rate": "Velocidade de reprodución",
diff --git a/media/player/videojs/videojs/lang/he.js b/media/player/videojs/videojs/lang/he.js
index bc246895edd..b019d93a898 100644
--- a/media/player/videojs/videojs/lang/he.js
+++ b/media/player/videojs/videojs/lang/he.js
@@ -14,7 +14,7 @@ videojs.addLanguage('he', {
   "Progress Bar": "סרגל התקדמות",
   "progress bar timing: currentTime={1} duration={2}": "{1} מתוך {2}",
   "Fullscreen": "מסך מלא",
-  "Non-Fullscreen": "מסך לא מלא",
+  "Exit Fullscreen": "מסך לא מלא",
   "Mute": "השתק",
   "Unmute": "בטל השתקה",
   "Playback Rate": "קצב ניגון",
diff --git a/media/player/videojs/videojs/lang/he.json b/media/player/videojs/videojs/lang/he.json
index 7bfb0d56396..846b4e76af3 100644
--- a/media/player/videojs/videojs/lang/he.json
+++ b/media/player/videojs/videojs/lang/he.json
@@ -14,7 +14,7 @@
 	"Progress Bar": "סרגל התקדמות",
 	"progress bar timing: currentTime={1} duration={2}": "{1} מתוך {2}",
 	"Fullscreen": "מסך מלא",
-	"Non-Fullscreen": "מסך לא מלא",
+	"Exit Fullscreen": "מסך לא מלא",
 	"Mute": "השתק",
 	"Unmute": "בטל השתקה",
 	"Playback Rate": "קצב ניגון",
diff --git a/media/player/videojs/videojs/lang/hi.js b/media/player/videojs/videojs/lang/hi.js
index 87b7d5f26f9..2f371fa7687 100644
--- a/media/player/videojs/videojs/lang/hi.js
+++ b/media/player/videojs/videojs/lang/hi.js
@@ -16,7 +16,7 @@ videojs.addLanguage('hi', {
   "Progress Bar": "प्रोगेस बार",
   "progress bar timing: currentTime={1} duration={2}": "{2} में से {1}",
   "Fullscreen": "फ़ुल स्क्रीन",
-  "Non-Fullscreen": "फ़ुल स्क्रीन से बाहर निकलें",
+  "Exit Fullscreen": "फ़ुल स्क्रीन से बाहर निकलें",
   "Mute": "म्यूट करें",
   "Unmute": "अनम्यूट करें",
   "Playback Rate": "चलाने की दर",
diff --git a/media/player/videojs/videojs/lang/hi.json b/media/player/videojs/videojs/lang/hi.json
index 2825f64c1f4..44a8f5511f5 100644
--- a/media/player/videojs/videojs/lang/hi.json
+++ b/media/player/videojs/videojs/lang/hi.json
@@ -16,7 +16,7 @@
   "Progress Bar": "प्रोगेस बार",
   "progress bar timing: currentTime={1} duration={2}": "{2} में से {1}",
   "Fullscreen": "फ़ुल स्क्रीन",
-  "Non-Fullscreen": "फ़ुल स्क्रीन से बाहर निकलें",
+  "Exit Fullscreen": "फ़ुल स्क्रीन से बाहर निकलें",
   "Mute": "म्यूट करें",
   "Unmute": "अनम्यूट करें",
   "Playback Rate": "चलाने की दर",
diff --git a/media/player/videojs/videojs/lang/hr.js b/media/player/videojs/videojs/lang/hr.js
index 2606362ae79..79a6463a5d8 100644
--- a/media/player/videojs/videojs/lang/hr.js
+++ b/media/player/videojs/videojs/lang/hr.js
@@ -9,7 +9,7 @@ videojs.addLanguage('hr', {
   "Loaded": "Učitan",
   "Progress": "Progres",
   "Fullscreen": "Puni ekran",
-  "Non-Fullscreen": "Mali ekran",
+  "Exit Fullscreen": "Mali ekran",
   "Mute": "Prigušen",
   "Unmute": "Ne-prigušen",
   "Playback Rate": "Stopa reprodukcije",
diff --git a/media/player/videojs/videojs/lang/hr.json b/media/player/videojs/videojs/lang/hr.json
index 32e1763f0a1..da6b2a76dde 100644
--- a/media/player/videojs/videojs/lang/hr.json
+++ b/media/player/videojs/videojs/lang/hr.json
@@ -9,7 +9,7 @@
   "Loaded": "Učitan",
   "Progress": "Progres",
   "Fullscreen": "Puni ekran",
-  "Non-Fullscreen": "Mali ekran",
+  "Exit Fullscreen": "Mali ekran",
   "Mute": "Prigušen",
   "Unmute": "Ne-prigušen",
   "Playback Rate": "Stopa reprodukcije",
diff --git a/media/player/videojs/videojs/lang/hu.js b/media/player/videojs/videojs/lang/hu.js
index 5b3bc82846b..a3e1d4f07b2 100644
--- a/media/player/videojs/videojs/lang/hu.js
+++ b/media/player/videojs/videojs/lang/hu.js
@@ -9,7 +9,7 @@ videojs.addLanguage('hu', {
   "Loaded": "Betöltve",
   "Progress": "Állapot",
   "Fullscreen": "Teljes képernyő",
-  "Non-Fullscreen": "Normál méret",
+  "Exit Fullscreen": "Normál méret",
   "Mute": "Némítás",
   "Unmute": "Némítás kikapcsolva",
   "Playback Rate": "Lejátszási sebesség",
diff --git a/media/player/videojs/videojs/lang/hu.json b/media/player/videojs/videojs/lang/hu.json
index 6362af7a2a8..c6060f98eac 100644
--- a/media/player/videojs/videojs/lang/hu.json
+++ b/media/player/videojs/videojs/lang/hu.json
@@ -9,7 +9,7 @@
   "Loaded": "Betöltve",
   "Progress": "Állapot",
   "Fullscreen": "Teljes képernyő",
-  "Non-Fullscreen": "Normál méret",
+  "Exit Fullscreen": "Normál méret",
   "Mute": "Némítás",
   "Unmute": "Némítás kikapcsolva",
   "Playback Rate": "Lejátszási sebesség",
diff --git a/media/player/videojs/videojs/lang/it.js b/media/player/videojs/videojs/lang/it.js
index 18a1c4c1099..0beb3aadfdf 100644
--- a/media/player/videojs/videojs/lang/it.js
+++ b/media/player/videojs/videojs/lang/it.js
@@ -1,6 +1,9 @@
 videojs.addLanguage('it', {
+  "Audio Player": "Lettore audio",
+  "Video Player": "Lettore video",
   "Play": "Play",
   "Pause": "Pausa",
+  "Replay": "Replay",
   "Current Time": "Orario attuale",
   "Duration": "Durata",
   "Remaining Time": "Tempo rimanente",
@@ -8,19 +11,79 @@ videojs.addLanguage('it', {
   "LIVE": "LIVE",
   "Loaded": "Caricato",
   "Progress": "Stato",
+  "Progress Bar": "Barra di avanzamento",
+  "progress bar timing: currentTime={1} duration={2}": "{1} di {2}",
   "Fullscreen": "Schermo intero",
-  "Non-Fullscreen": "Chiudi schermo intero",
-  "Mute": "Muto",
-  "Unmute": "Audio",
+  "Exit Fullscreen": "Chiudi Schermo intero",
+  "Mute": "Disattivare l’audio",
+  "Unmute": "Attivare l’audio",
   "Playback Rate": "Tasso di riproduzione",
   "Subtitles": "Sottotitoli",
   "subtitles off": "Senza sottotitoli",
   "Captions": "Sottotitoli non udenti",
   "captions off": "Senza sottotitoli non udenti",
   "Chapters": "Capitolo",
+  "Descriptions": "Descrizioni",
+  "descriptions off": "Descrizioni disattivate",
+  "Audio Track": "Traccia audio",
+  "Volume Level": "Livello del volume",
   "You aborted the media playback": "La riproduzione del filmato è stata interrotta.",
   "A network error caused the media download to fail part-way.": "Il download del filmato è stato interrotto a causa di un problema rete.",
   "The media could not be loaded, either because the server or network failed or because the format is not supported.": "Il filmato non può essere caricato a causa di un errore nel server o nella rete o perché il formato non viene supportato.",
   "The media playback was aborted due to a corruption problem or because the media used features your browser did not support.": "La riproduzione del filmato è stata interrotta a causa di un file danneggiato o per l’utilizzo di impostazioni non supportate dal browser.",
-  "No compatible source was found for this media.": "Non ci sono fonti compatibili per questo filmato."
+  "No compatible source was found for this media.": "Non ci sono fonti compatibili per questo filmato.",
+  "The media is encrypted and we do not have the keys to decrypt it.": "Il contenuto multimediale è criptato e non disponiamo delle chiavi per decifrarlo.",
+  "Play Video": "Riproduci il video",
+  "Close": "Chiudi",
+  "Close Modal Dialog": "Chiudi la finestra di dialogo",
+  "Modal Window": "Finestra di dialogo",
+  "This is a modal window": "Questa è una finestra di dialogo",
+  "This modal can be closed by pressing the Escape key or activating the close button.": "Questa finestra di dialogo può essere chiusa premendo sul tasto Esc o attivando il pulsante di chiusura.",
+  ", opens captions settings dialog": ", aprire i parametri della trascrizione dei sottotitoli",
+  ", opens subtitles settings dialog": ", aprire i parametri dei sottotitoli",
+  ", opens descriptions settings dialog": ", aprire i parametri delle descrizioni",
+  ", selected": ", selezionato",
+  "captions settings": "Parametri della trascrizione dei sottotitoli",
+  "subtitles settings": "Parametri dei sottotitoli",
+  "descriptions settings": "Parametri delle descrizioni",
+  "Text": "Testo",
+  "White": "Bianco",
+  "Black": "Nero",
+  "Red": "Rosso",
+  "Green": "Verde",
+  "Blue": "Blu",
+  "Yellow": "Giallo",
+  "Magenta": "Magenta",
+  "Cyan": "Ciano",
+  "Background": "Sfondo",
+  "Window": "Finestra",
+  "Transparent": "Trasparente",
+  "Semi-Transparent": "Semi-Trasparente",
+  "Opaque": "Opaco",
+  "Font Size": "Dimensione dei caratteri",
+  "Text Edge Style": "Stile dei bordi del testo",
+  "None": "Nessuno",
+  "Uniform": "Uniforme",
+  "Dropshadow": "Ombreggiatura",
+  "Font Family": "Famiglia di caratteri",
+  "Proportional Sans-Serif": "Sans-Serif proporzionale",
+  "Monospace Sans-Serif": "Sans-Serif monospazio",
+  "Proportional Serif": "Serif proporzionale",
+  "Monospace Serif": "Serif monospazio",
+  "Small Caps": "Maiuscoletto",
+  "Reset": "Reinizializza",
+  "restore all settings to the default values": "Ripristina i valori predefiniti per tutti i parametri",
+  "Done": "Operazione completata",
+  "Caption Settings Dialog": "Finestra di dialogo dei parametri della trascrizione dei sottotitoli",
+  "Beginning of dialog window. Escape will cancel and close the window.": "Inizio della finestra di dialogo. Il tasto Esc annullerà l’operazione e chiuderà la finestra.",
+  "End of dialog window.": "Fine della finestra di dialogo.",
+  "{1} is loading.": "{1} in fase di caricamento.",
+  "Exit Picture-in-Picture": "Esci dalla modalità Picture-in-Picture",
+  "Picture-in-Picture": "Picture-in-Picture",
+  "Color": "Colore",
+  "Opacity": "Opacità",
+  "Text Background": "Sfondo del testo",
+  "Caption Area Background": "Sfondo dell'area dei sottotitoli",
+  "Skip forward {1} seconds": "Avanti di {1} secondi",
+  "Skip backward {1} seconds": "Indietro di {1} secondi"
 });
\ No newline at end of file
diff --git a/media/player/videojs/videojs/lang/it.json b/media/player/videojs/videojs/lang/it.json
index 19f5a7858f2..7fc044564d8 100644
--- a/media/player/videojs/videojs/lang/it.json
+++ b/media/player/videojs/videojs/lang/it.json
@@ -1,6 +1,9 @@
 {
+  "Audio Player": "Lettore audio",
+  "Video Player": "Lettore video",
   "Play": "Play",
   "Pause": "Pausa",
+  "Replay": "Replay",
   "Current Time": "Orario attuale",
   "Duration": "Durata",
   "Remaining Time": "Tempo rimanente",
@@ -8,19 +11,79 @@
   "LIVE": "LIVE",
   "Loaded": "Caricato",
   "Progress": "Stato",
+  "Progress Bar": "Barra di avanzamento",
+  "progress bar timing: currentTime={1} duration={2}": "{1} di {2}",
   "Fullscreen": "Schermo intero",
-  "Non-Fullscreen": "Chiudi schermo intero",
-  "Mute": "Muto",
-  "Unmute": "Audio",
+  "Exit Fullscreen": "Chiudi Schermo intero",
+  "Mute": "Disattivare l’audio",
+  "Unmute": "Attivare l’audio",
   "Playback Rate": "Tasso di riproduzione",
   "Subtitles": "Sottotitoli",
   "subtitles off": "Senza sottotitoli",
   "Captions": "Sottotitoli non udenti",
   "captions off": "Senza sottotitoli non udenti",
   "Chapters": "Capitolo",
+  "Descriptions": "Descrizioni",
+  "descriptions off": "Descrizioni disattivate",
+  "Audio Track": "Traccia audio",
+  "Volume Level": "Livello del volume",
   "You aborted the media playback": "La riproduzione del filmato è stata interrotta.",
   "A network error caused the media download to fail part-way.": "Il download del filmato è stato interrotto a causa di un problema rete.",
   "The media could not be loaded, either because the server or network failed or because the format is not supported.": "Il filmato non può essere caricato a causa di un errore nel server o nella rete o perché il formato non viene supportato.",
   "The media playback was aborted due to a corruption problem or because the media used features your browser did not support.": "La riproduzione del filmato è stata interrotta a causa di un file danneggiato o per l’utilizzo di impostazioni non supportate dal browser.",
-  "No compatible source was found for this media.": "Non ci sono fonti compatibili per questo filmato."
+  "No compatible source was found for this media.": "Non ci sono fonti compatibili per questo filmato.",
+  "The media is encrypted and we do not have the keys to decrypt it.": "Il contenuto multimediale è criptato e non disponiamo delle chiavi per decifrarlo.",
+  "Play Video": "Riproduci il video",
+  "Close": "Chiudi",
+  "Close Modal Dialog": "Chiudi la finestra di dialogo",
+  "Modal Window": "Finestra di dialogo",
+  "This is a modal window": "Questa è una finestra di dialogo",
+  "This modal can be closed by pressing the Escape key or activating the close button.": "Questa finestra di dialogo può essere chiusa premendo sul tasto Esc o attivando il pulsante di chiusura.",
+  ", opens captions settings dialog": ", aprire i parametri della trascrizione dei sottotitoli",
+  ", opens subtitles settings dialog": ", aprire i parametri dei sottotitoli",
+  ", opens descriptions settings dialog": ", aprire i parametri delle descrizioni",
+  ", selected": ", selezionato",
+  "captions settings": "Parametri della trascrizione dei sottotitoli",
+  "subtitles settings": "Parametri dei sottotitoli",
+  "descriptions settings": "Parametri delle descrizioni",
+  "Text": "Testo",
+  "White": "Bianco",
+  "Black": "Nero",
+  "Red": "Rosso",
+  "Green": "Verde",
+  "Blue": "Blu",
+  "Yellow": "Giallo",
+  "Magenta": "Magenta",
+  "Cyan": "Ciano",
+  "Background": "Sfondo",
+  "Window": "Finestra",
+  "Transparent": "Trasparente",
+  "Semi-Transparent": "Semi-Trasparente",
+  "Opaque": "Opaco",
+  "Font Size": "Dimensione dei caratteri",
+  "Text Edge Style": "Stile dei bordi del testo",
+  "None": "Nessuno",
+  "Uniform": "Uniforme",
+  "Dropshadow": "Ombreggiatura",
+  "Font Family": "Famiglia di caratteri",
+  "Proportional Sans-Serif": "Sans-Serif proporzionale",
+  "Monospace Sans-Serif": "Sans-Serif monospazio",
+  "Proportional Serif": "Serif proporzionale",
+  "Monospace Serif": "Serif monospazio",
+  "Small Caps": "Maiuscoletto",
+  "Reset": "Reinizializza",
+  "restore all settings to the default values": "Ripristina i valori predefiniti per tutti i parametri",
+  "Done": "Operazione completata",
+  "Caption Settings Dialog": "Finestra di dialogo dei parametri della trascrizione dei sottotitoli",
+  "Beginning of dialog window. Escape will cancel and close the window.": "Inizio della finestra di dialogo. Il tasto Esc annullerà l’operazione e chiuderà la finestra.",
+  "End of dialog window.": "Fine della finestra di dialogo.",
+  "{1} is loading.": "{1} in fase di caricamento.",
+  "Exit Picture-in-Picture": "Esci dalla modalità Picture-in-Picture",
+  "Picture-in-Picture": "Picture-in-Picture",
+  "Color": "Colore",
+  "Opacity": "Opacità",
+  "Text Background": "Sfondo del testo",
+  "Caption Area Background": "Sfondo dell'area dei sottotitoli",
+  "Skip forward {1} seconds": "Avanti di {1} secondi",
+  "Skip backward {1} seconds": "Indietro di {1} secondi"
 }
diff --git a/media/player/videojs/videojs/lang/ja.js b/media/player/videojs/videojs/lang/ja.js
index 7d71cd102e9..64db927733b 100644
--- a/media/player/videojs/videojs/lang/ja.js
+++ b/media/player/videojs/videojs/lang/ja.js
@@ -1,26 +1,96 @@
 videojs.addLanguage('ja', {
+  "Audio Player": "オーディオプレイヤー",
+  "Video Player": "ビデオプレイヤー",
   "Play": "再生",
   "Pause": "一時停止",
+  "Replay": "もう一度見る",
   "Current Time": "現在の時間",
   "Duration": "長さ",
   "Remaining Time": "残りの時間",
   "Stream Type": "ストリームの種類",
   "LIVE": "ライブ",
+  "Seek to live, currently behind live": "ライブまで再生位置を指定、現在ライブが遅れています。",
+  "Seek to live, currently playing live": "ライブまで再生位置を指定、現在ライブ中。",
   "Loaded": "ロード済み",
   "Progress": "進行状況",
+  "Progress Bar": "シークバー",
+  "progress bar timing: currentTime={1} duration={2}": "{2}の{1}",
   "Fullscreen": "フルスクリーン",
-  "Non-Fullscreen": "フルスクリーン以外",
+  "Exit Fullscreen": "フルスクリーン以外",
   "Mute": "ミュート",
-  "Unmute": "ミュート解除",
+  "Unmute": "サウンドをオン",
   "Playback Rate": "再生レート",
   "Subtitles": "サブタイトル",
   "subtitles off": "サブタイトル オフ",
   "Captions": "キャプション",
   "captions off": "キャプション オフ",
   "Chapters": "チャプター",
+  "Descriptions": "ディスクリプション",
+  "descriptions off": "ディスクリプションオフ",
+  "Audio Track": "音声トラック",
+  "Volume Level": "ボリュームレベル",
   "You aborted the media playback": "動画再生を中止しました",
   "A network error caused the media download to fail part-way.": "ネットワーク エラーにより動画のダウンロードが途中で失敗しました",
   "The media could not be loaded, either because the server or network failed or because the format is not supported.": "サーバーまたはネットワークのエラー、またはフォーマットがサポートされていないため、動画をロードできませんでした",
   "The media playback was aborted due to a corruption problem or because the media used features your browser did not support.": "破損の問題、またはお使いのブラウザがサポートしていない機能が動画に使用されていたため、動画の再生が中止されました",
-  "No compatible source was found for this media.": "この動画に対して互換性のあるソースが見つかりませんでした"
+  "No compatible source was found for this media.": "この動画に対して互換性のあるソースが見つかりませんでした",
+  "The media is encrypted and we do not have the keys to decrypt it.": "メディアは暗号化されており、解読するためのキーがありません。",
+  "Play Video": "ビデオを再生する",
+  "Close": "閉じる",
+  "Close Modal Dialog": "ダイアログボックスを閉じる",
+  "Modal Window": "ダイアログボックス",
+  "This is a modal window": "これはダイアログボックスです",
+  "This modal can be closed by pressing the Escape key or activating the close button.": "このダイアログボックスは、Escキーを押すか、閉じるボタンを押して閉じることができま",
+  ", opens captions settings dialog": ", 書き起こし字幕の設定を開く",
+  ", opens subtitles settings dialog": ", 字幕の設定を開く",
+  ", opens descriptions settings dialog": ", ディスクリプションの設定を開く",
+  ", selected": ", 選択済み",
+  "captions settings": "書き起こし字幕の設定",
+  "subtitles settings": "字幕の設定",
+  "descriptions settings": "ディスクリプションの設定",
+  "Text": "テキスト",
+  "White": "白",
+  "Black": "黒",
+  "Red": "赤",
+  "Green": "緑",
+  "Blue": "青",
+  "Yellow": "黄",
+  "Magenta": "赤紫",
+  "Cyan": "シアン",
+  "Background": "背景",
+  "Window": "ウィンドウ",
+  "Transparent": "透明",
+  "Semi-Transparent": "半透明",
+  "Opaque": "不透明",
+  "Font Size": "文字サイズ",
+  "Text Edge Style": "テキストのアウトラインのスタイル",
+  "None": "なし",
+  "Raised": "浮き出し",
+  "Depressed": "浮き彫り",
+  "Uniform": "均一",
+  "Dropshadow": "影付き",
+  "Font Family": "フォントの種類",
+  "Proportional Sans-Serif": "セリフなし可変幅フォント",
+  "Monospace Sans-Serif": "セリフなし等幅フォント",
+  "Proportional Serif": "セリフあり可変幅フォント",
+  "Monospace Serif": "セリフあり等幅フォント",
+  "Casual": "カジュアル",
+  "Script": "スクリプト",
+  "Small Caps": "スモールキャピタル",
+  "Reset": "リセット",
+  "restore all settings to the default values": "すべての設定をデフォルト値に戻す",
+  "Done": "終了",
+  "Caption Settings Dialog": "書き起こし字幕設定ダイアログ",
+  "Beginning of dialog window. Escape will cancel and close the window.": "ダイアログボックスの開始。Escキーでキャンセルしてウィンドウを閉じます。",
+  "End of dialog window.": "ダイアログボックスの終了",
+  "{1} is loading.": "{1}は読み込み中です。",
+  "Exit Picture-in-Picture": "ピクチャーインピクチャー機能の終了",
+  "Picture-in-Picture": "ピクチャーインピクチャー",
+  "No content": "コンテンツなし",
+  "Color": "色",
+  "Opacity": "不透明度",
+  "Text Background": "テキスト背景",
+  "Caption Area Background": "キャプション領域背景",
+  "Skip forward {1} seconds": "{1}秒進む",
+  "Skip backward {1} seconds": "{1}秒戻る"
 });
\ No newline at end of file
diff --git a/media/player/videojs/videojs/lang/ja.json b/media/player/videojs/videojs/lang/ja.json
index df5b6cf0538..00f8714a975 100644
--- a/media/player/videojs/videojs/lang/ja.json
+++ b/media/player/videojs/videojs/lang/ja.json
@@ -1,26 +1,96 @@
 {
+  "Audio Player": "オーディオプレイヤー",
+  "Video Player": "ビデオプレイヤー",
   "Play": "再生",
   "Pause": "一時停止",
+  "Replay": "もう一度見る",
   "Current Time": "現在の時間",
   "Duration": "長さ",
   "Remaining Time": "残りの時間",
   "Stream Type": "ストリームの種類",
   "LIVE": "ライブ",
+  "Seek to live, currently behind live": "ライブまで再生位置を指定、現在ライブが遅れています。",
+  "Seek to live, currently playing live": "ライブまで再生位置を指定、現在ライブ中。",
   "Loaded": "ロード済み",
   "Progress": "進行状況",
+  "Progress Bar": "シークバー",
+  "progress bar timing: currentTime={1} duration={2}": "{2}の{1}",
   "Fullscreen": "フルスクリーン",
-  "Non-Fullscreen": "フルスクリーン以外",
+  "Exit Fullscreen": "フルスクリーン以外",
   "Mute": "ミュート",
-  "Unmute": "ミュート解除",
+  "Unmute": "サウンドをオン",
   "Playback Rate": "再生レート",
   "Subtitles": "サブタイトル",
   "subtitles off": "サブタイトル オフ",
   "Captions": "キャプション",
   "captions off": "キャプション オフ",
   "Chapters": "チャプター",
+  "Descriptions": "ディスクリプション",
+  "descriptions off": "ディスクリプションオフ",
+  "Audio Track": "音声トラック",
+  "Volume Level": "ボリュームレベル",
   "You aborted the media playback": "動画再生を中止しました",
   "A network error caused the media download to fail part-way.": "ネットワーク エラーにより動画のダウンロードが途中で失敗しました",
   "The media could not be loaded, either because the server or network failed or because the format is not supported.": "サーバーまたはネットワークのエラー、またはフォーマットがサポートされていないため、動画をロードできませんでした",
   "The media playback was aborted due to a corruption problem or because the media used features your browser did not support.": "破損の問題、またはお使いのブラウザがサポートしていない機能が動画に使用されていたため、動画の再生が中止されました",
-  "No compatible source was found for this media.": "この動画に対して互換性のあるソースが見つかりませんでした"
+  "No compatible source was found for this media.": "この動画に対して互換性のあるソースが見つかりませんでした",
+  "The media is encrypted and we do not have the keys to decrypt it.": "メディアは暗号化されており、解読するためのキーがありません。",
+  "Play Video": "ビデオを再生する",
+  "Close": "閉じる",
+  "Close Modal Dialog": "ダイアログボックスを閉じる",
+  "Modal Window": "ダイアログボックス",
+  "This is a modal window": "これはダイアログボックスです",
+  "This modal can be closed by pressing the Escape key or activating the close button.": "このダイアログボックスは、Escキーを押すか、閉じるボタンを押して閉じることができま",
+  ", opens captions settings dialog": ", 書き起こし字幕の設定を開く",
+  ", opens subtitles settings dialog": ", 字幕の設定を開く",
+  ", opens descriptions settings dialog": ", ディスクリプションの設定を開く",
+  ", selected": ", 選択済み",
+  "captions settings": "書き起こし字幕の設定",
+  "subtitles settings": "字幕の設定",
+  "descriptions settings": "ディスクリプションの設定",
+  "Text": "テキスト",
+  "White": "白",
+  "Black": "黒",
+  "Red": "赤",
+  "Green": "緑",
+  "Blue": "青",
+  "Yellow": "黄",
+  "Magenta": "赤紫",
+  "Cyan": "シアン",
+  "Background": "背景",
+  "Window": "ウィンドウ",
+  "Transparent": "透明",
+  "Semi-Transparent": "半透明",
+  "Opaque": "不透明",
+  "Font Size": "文字サイズ",
+  "Text Edge Style": "テキストのアウトラインのスタイル",
+  "None": "なし",
+  "Raised": "浮き出し",
+  "Depressed": "浮き彫り",
+  "Uniform": "均一",
+  "Dropshadow": "影付き",
+  "Font Family": "フォントの種類",
+  "Proportional Sans-Serif": "セリフなし可変幅フォント",
+  "Monospace Sans-Serif": "セリフなし等幅フォント",
+  "Proportional Serif": "セリフあり可変幅フォント",
+  "Monospace Serif": "セリフあり等幅フォント",
+  "Casual": "カジュアル",
+  "Script": "スクリプト",
+  "Small Caps": "スモールキャピタル",
+  "Reset": "リセット",
+  "restore all settings to the default values": "すべての設定をデフォルト値に戻す",
+  "Done": "終了",
+  "Caption Settings Dialog": "書き起こし字幕設定ダイアログ",
+  "Beginning of dialog window. Escape will cancel and close the window.": "ダイアログボックスの開始。Escキーでキャンセルしてウィンドウを閉じます。",
+  "End of dialog window.": "ダイアログボックスの終了",
+  "{1} is loading.": "{1}は読み込み中です。",
+  "Exit Picture-in-Picture": "ピクチャーインピクチャー機能の終了",
+  "Picture-in-Picture": "ピクチャーインピクチャー",
+  "No content": "コンテンツなし",
+  "Color": "色",
+  "Opacity": "不透明度",
+  "Text Background": "テキスト背景",
+  "Caption Area Background": "キャプション領域背景",
+  "Skip forward {1} seconds": "{1}秒進む",
+  "Skip backward {1} seconds": "{1}秒戻る"
 }
diff --git a/media/player/videojs/videojs/lang/ko.js b/media/player/videojs/videojs/lang/ko.js
index 74048c9b5c8..8589163ec94 100644
--- a/media/player/videojs/videojs/lang/ko.js
+++ b/media/player/videojs/videojs/lang/ko.js
@@ -1,26 +1,94 @@
 videojs.addLanguage('ko', {
+  "Audio Player": "오디오 플레이어",
+  "Video Player": "비디오 플레이어",
   "Play": "재생",
   "Pause": "일시중지",
+  "Replay": "다시 재생",
   "Current Time": "현재 시간",
   "Duration": "지정 기간",
   "Remaining Time": "남은 시간",
   "Stream Type": "스트리밍 유형",
   "LIVE": "라이브",
+  "Seek to live, currently behind live": "Seek to Live, 현재 생중계보다 뒤처짐",
+  "Seek to live, currently playing live": "Seek to Live, 현재 생중계 스트리밍 중",
   "Loaded": "로드됨",
   "Progress": "진행",
+  "Progress Bar": "진행 표시줄",
+  "progress bar timing: currentTime={1} duration={2}": "{2} 중 {1}",
   "Fullscreen": "전체 화면",
-  "Non-Fullscreen": "전체 화면 해제",
+  "Exit Fullscreen": "전체 화면 해제",
   "Mute": "음소거",
-  "Unmute": "음소거 해제",
-  "Playback Rate": "재생 비율",
+  "Unmute": "소리 활성화하기",
+  "Playback Rate": "재생 속도",
   "Subtitles": "서브타이틀",
   "subtitles off": "서브타이틀 끄기",
   "Captions": "자막",
   "captions off": "자막 끄기",
   "Chapters": "챕터",
+  "Descriptions": "제품 설명",
+  "descriptions off": "제품 설명 끄기",
+  "Audio Track": "오디오 트랙",
+  "Volume Level": "볼륨 레벨",
   "You aborted the media playback": "비디오 재생을 취소했습니다.",
   "A network error caused the media download to fail part-way.": "네트워크 오류로 인하여 비디오 일부를 다운로드하지 못 했습니다.",
   "The media could not be loaded, either because the server or network failed or because the format is not supported.": "비디오를 로드할 수 없습니다. 서버 혹은 네트워크 오류 때문이거나 지원되지 않는 형식 때문일 수 있습니다.",
   "The media playback was aborted due to a corruption problem or because the media used features your browser did not support.": "비디오 재생이 취소됐습니다. 비디오가 손상되었거나 비디오가 사용하는 기능을 브라우저에서 지원하지 않는 것 같습니다.",
-  "No compatible source was found for this media.": "비디오에 호환되지 않는 소스가 있습니다."
+  "No compatible source was found for this media.": "비디오에 호환되지 않는 소스가 있습니다.",
+  "The media is encrypted and we do not have the keys to decrypt it.": "미디어는 암호화되어 있으며 이를 해독할 키를 갖고 있지 않습니다.",
+  "Play Video": "영상 재생",
+  "Close": "닫기",
+  "Close Modal Dialog": "대화 상자 닫기",
+  "Modal Window": "모달 창",
+  "This is a modal window": "모달 창입니다",
+  "This modal can be closed by pressing the Escape key or activating the close button.": "이 모달은 Esc 키를 누르거나 닫기 버튼을 활성화하여 닫을 수 있습니다.",
+  ", opens captions settings dialog": ", 캡션 설정 대화 상자가 열립니다",
+  ", opens subtitles settings dialog": ", 자막 설정 대화 상자가 열립니다",
+  ", opens descriptions settings dialog": ", 설명 설정 대화 상자가 열립니다",
+  ", selected": ", 선택됨",
+  "captions settings": "캡션 설정",
+  "subtitles settings": "자막 설정",
+  "descriptions settings": "설명 설정",
+  "Text": "텍스트",
+  "White": "화이트",
+  "Black": "블랙",
+  "Red": "레드",
+  "Green": "그린",
+  "Blue": "블루",
+  "Yellow": "옐로우",
+  "Magenta": "마젠타",
+  "Cyan": "씨엉",
+  "Background": "배경",
+  "Window": "창",
+  "Transparent": "투명",
+  "Semi-Transparent": "반투명",
+  "Opaque": "불투명",
+  "Font Size": "폰트 크기",
+  "Text Edge Style": "텍스트 가장자리 스타일",
+  "None": "없음",
+  "Raised": "글자 위치 올림",
+  "Depressed": "글자 위치 내림",
+  "Uniform": "균일",
+  "Dropshadow": "그림자 효과 넣기",
+  "Font Family": "폰트 모음",
+  "Proportional Sans-Serif": "비례 산세리프체",
+  "Monospace Sans-Serif": "고정폭 산세리프체",
+  "Proportional Serif": "비례 세리프체",
+  "Monospace Serif": "고정폭 세리프체",
+  "Casual": "캐주얼",
+  "Script": "스크립트",
+  "Small Caps": "소문자",
+  "Reset": "리셋",
+  "restore all settings to the default values": "모든 설정을 기본값으로 복원",
+  "Done": "완료",
+  "Caption Settings Dialog": "캡션 설정 대화 상자",
+  "Beginning of dialog window. Escape will cancel and close the window.": "대화창 시작. Esc 키를 누르면 취소되고 창이 닫힙니다.",
+  "End of dialog window.": "대화창 종료",
+  "{1} is loading.": "{1}이(가) 로딩 중입니다.",
+  "Exit Picture-in-Picture": "Picture-in-Picture 종료",
+  "Picture-in-Picture": "Picture-in-Picture",
+  "No content": "콘텐츠 없음",
+  "Color": "색상",
+  "Opacity": "투명도",
+  "Text Background": "텍스트 배경",
+  "Caption Area Background": "자막 배경"
 });
\ No newline at end of file
diff --git a/media/player/videojs/videojs/lang/ko.json b/media/player/videojs/videojs/lang/ko.json
index 879edaffcc3..82ec283fd6a 100644
--- a/media/player/videojs/videojs/lang/ko.json
+++ b/media/player/videojs/videojs/lang/ko.json
@@ -1,26 +1,94 @@
 {
+  "Audio Player": "오디오 플레이어",
+  "Video Player": "비디오 플레이어",
   "Play": "재생",
   "Pause": "일시중지",
+  "Replay": "다시 재생",
   "Current Time": "현재 시간",
   "Duration": "지정 기간",
   "Remaining Time": "남은 시간",
   "Stream Type": "스트리밍 유형",
   "LIVE": "라이브",
+  "Seek to live, currently behind live": "Seek to Live, 현재 생중계보다 뒤처짐",
+  "Seek to live, currently playing live": "Seek to Live, 현재 생중계 스트리밍 중",
   "Loaded": "로드됨",
   "Progress": "진행",
+  "Progress Bar": "진행 표시줄",
+  "progress bar timing: currentTime={1} duration={2}": "{2} 중 {1}",
   "Fullscreen": "전체 화면",
-  "Non-Fullscreen": "전체 화면 해제",
+  "Exit Fullscreen": "전체 화면 해제",
   "Mute": "음소거",
-  "Unmute": "음소거 해제",
-  "Playback Rate": "재생 비율",
+  "Unmute": "소리 활성화하기",
+  "Playback Rate": "재생 속도",
   "Subtitles": "서브타이틀",
   "subtitles off": "서브타이틀 끄기",
   "Captions": "자막",
   "captions off": "자막 끄기",
   "Chapters": "챕터",
+  "Descriptions": "제품 설명",
+  "descriptions off": "제품 설명 끄기",
+  "Audio Track": "오디오 트랙",
+  "Volume Level": "볼륨 레벨",
   "You aborted the media playback": "비디오 재생을 취소했습니다.",
   "A network error caused the media download to fail part-way.": "네트워크 오류로 인하여 비디오 일부를 다운로드하지 못 했습니다.",
   "The media could not be loaded, either because the server or network failed or because the format is not supported.": "비디오를 로드할 수 없습니다. 서버 혹은 네트워크 오류 때문이거나 지원되지 않는 형식 때문일 수 있습니다.",
   "The media playback was aborted due to a corruption problem or because the media used features your browser did not support.": "비디오 재생이 취소됐습니다. 비디오가 손상되었거나 비디오가 사용하는 기능을 브라우저에서 지원하지 않는 것 같습니다.",
-  "No compatible source was found for this media.": "비디오에 호환되지 않는 소스가 있습니다."
+  "No compatible source was found for this media.": "비디오에 호환되지 않는 소스가 있습니다.",
+  "The media is encrypted and we do not have the keys to decrypt it.": "미디어는 암호화되어 있으며 이를 해독할 키를 갖고 있지 않습니다.",
+  "Play Video": "영상 재생",
+  "Close": "닫기",
+  "Close Modal Dialog": "대화 상자 닫기",
+  "Modal Window": "모달 창",
+  "This is a modal window": "모달 창입니다",
+  "This modal can be closed by pressing the Escape key or activating the close button.": "이 모달은 Esc 키를 누르거나 닫기 버튼을 활성화하여 닫을 수 있습니다.",
+  ", opens captions settings dialog": ", 캡션 설정 대화 상자가 열립니다",
+  ", opens subtitles settings dialog": ", 자막 설정 대화 상자가 열립니다",
+  ", opens descriptions settings dialog": ", 설명 설정 대화 상자가 열립니다",
+  ", selected": ", 선택됨",
+  "captions settings": "캡션 설정",
+  "subtitles settings": "자막 설정",
+  "descriptions settings": "설명 설정",
+  "Text": "텍스트",
+  "White": "화이트",
+  "Black": "블랙",
+  "Red": "레드",
+  "Green": "그린",
+  "Blue": "블루",
+  "Yellow": "옐로우",
+  "Magenta": "마젠타",
+  "Cyan": "씨엉",
+  "Background": "배경",
+  "Window": "창",
+  "Transparent": "투명",
+  "Semi-Transparent": "반투명",
+  "Opaque": "불투명",
+  "Font Size": "폰트 크기",
+  "Text Edge Style": "텍스트 가장자리 스타일",
+  "None": "없음",
+  "Raised": "글자 위치 올림",
+  "Depressed": "글자 위치 내림",
+  "Uniform": "균일",
+  "Dropshadow": "그림자 효과 넣기",
+  "Font Family": "폰트 모음",
+  "Proportional Sans-Serif": "비례 산세리프체",
+  "Monospace Sans-Serif": "고정폭 산세리프체",
+  "Proportional Serif": "비례 세리프체",
+  "Monospace Serif": "고정폭 세리프체",
+  "Casual": "캐주얼",
+  "Script": "스크립트",
+  "Small Caps": "소문자",
+  "Reset": "리셋",
+  "restore all settings to the default values": "모든 설정을 기본값으로 복원",
+  "Done": "완료",
+  "Caption Settings Dialog": "캡션 설정 대화 상자",
+  "Beginning of dialog window. Escape will cancel and close the window.": "대화창 시작. Esc 키를 누르면 취소되고 창이 닫힙니다.",
+  "End of dialog window.": "대화창 종료",
+  "{1} is loading.": "{1}이(가) 로딩 중입니다.",
+  "Exit Picture-in-Picture": "Picture-in-Picture 종료",
+  "Picture-in-Picture": "Picture-in-Picture",
+  "No content": "콘텐츠 없음",
+  "Color": "색상",
+  "Opacity": "투명도",
+  "Text Background": "텍스트 배경",
+  "Caption Area Background": "자막 배경"
 }
diff --git a/media/player/videojs/videojs/lang/lv.js b/media/player/videojs/videojs/lang/lv.js
index e2cdf88712e..11dd632544a 100644
--- a/media/player/videojs/videojs/lang/lv.js
+++ b/media/player/videojs/videojs/lang/lv.js
@@ -16,7 +16,7 @@ videojs.addLanguage('lv', {
   "Progress Bar": "Progresa josla",
   "progress bar timing: currentTime={1} duration={2}": "{1} no {2}",
   "Fullscreen": "Pilnekrāna režīms",
-  "Non-Fullscreen": "Iziet no pilnekrāna režīma",
+  "Exit Fullscreen": "Iziet no pilnekrāna režīma",
   "Mute": "Izslēgt skaņu",
   "Unmute": "Ieslēgt skaņu",
   "Playback Rate": "Atskaņošanas ātrums",
@@ -85,5 +85,7 @@ videojs.addLanguage('lv', {
   "End of dialog window.": "Parakstu iestatījumu loga beigas",
   "{1} is loading.": "{1} ielādē.",
   "Exit Picture-in-Picture": "Iziet no Attēls attēlā",
-  "Picture-in-Picture": "Attēls attēlā"
+  "Picture-in-Picture": "Attēls attēlā",
+  "Skip forward {1} seconds": "Pārtīt uz priekšu {1} sekundes",
+  "Skip backward {1} seconds": "Pārtīt atpakaļ {1} sekundes"
 });
\ No newline at end of file
diff --git a/media/player/videojs/videojs/lang/lv.json b/media/player/videojs/videojs/lang/lv.json
index c224f65825d..3e5ce648a5a 100644
--- a/media/player/videojs/videojs/lang/lv.json
+++ b/media/player/videojs/videojs/lang/lv.json
@@ -1,89 +1,91 @@
 {
-    "Audio Player": "Audio atskaņotājs",
-    "Video Player": "Video atskaņotājs",
-    "Play": "Atskaņot",
-    "Pause": "Pauzēt",
-    "Replay": "Atkārtot",
-    "Current Time": "Esošais laiks",
-    "Duration": "Ilgums",
-    "Remaining Time": "Atlikušais laiks",
-    "Stream Type": "Straumes veids",
-    "LIVE": "LIVE",
-    "Seek to live, currently behind live": "Pāriet uz tiešraidi",
-    "Seek to live, currently playing live": "Pāriet uz tiešraidi",
-    "Loaded": "Ielādēts",
-    "Progress": "Progress",
-    "Progress Bar": "Progresa josla",
-    "progress bar timing: currentTime={1} duration={2}": "{1} no {2}",
-    "Fullscreen": "Pilnekrāna režīms",
-    "Non-Fullscreen": "Iziet no pilnekrāna režīma",
-    "Mute": "Izslēgt skaņu",
-    "Unmute": "Ieslēgt skaņu",
-    "Playback Rate": "Atskaņošanas ātrums",
-    "Subtitles": "Subtitri",
-    "subtitles off": "Izslēgt subtitrus",
-    "Captions": "Paraksti",
-    "captions off": "Izslēgt parakstus",
-    "Chapters": "Temati",
-    "Descriptions": "Apraksti",
-    "descriptions off": "Izslēgt aprakstus",
-    "Audio Track": "Audio celiņš",
-    "Volume Level": "Skaļums",
-    "You aborted the media playback": "Atskaņošana atcelta",
-    "A network error caused the media download to fail part-way.": "Tīkla kļūdas dēļ, multivides lejupielāde neizdevās.",
-    "The media could not be loaded, either because the server or network failed or because the format is not supported.": "Neizdevās ielādēt multividi, iespējams severa, vai tīkla kļūmes dēļ, vai neatbalstīta formāta dēļ.",
-    "The media playback was aborted due to a corruption problem or because the media used features your browser did not support.": "Atskaņošana tika pārtraukta tīkla kļūmes dēļ vai pārlūkprogrammas iespēju trūkuma dēļ.",
-    "No compatible source was found for this media.": "Netika atrasts atbilstošs multivides avots.",
-    "The media is encrypted and we do not have the keys to decrypt it.": "Multividi nevar atskaņot, jo tas ir kriptēts un nav pieejama dekriptēšanas atslēga.",
-    "Play Video": "Atskaņot video",
-    "Close": "Aizvērt",
-    "Close Modal Dialog": "Aizvērt logu",
-    "Modal Window": "Logs",
-    "This is a modal window": "Logs",
-    "This modal can be closed by pressing the Escape key or activating the close button.": "Šo logu var aizvērt, nospiežot uz aizvēršanas pogas vai taustiņa ESC.",
-    ", opens captions settings dialog": ", atvērs parakstu logu",
-    ", opens subtitles settings dialog": ", atvērs subtitru logu",
-    ", opens descriptions settings dialog": ", atvērs aprakstu logu",
-    ", selected": ", izvēlēts",
-    "captions settings": "parakstu iestatījumi",
-    "subtitles settings": "subtitru iestatījumi",
-    "descriptions settings": "aprakstu iestatījumi",
-    "Text": "Teksts",
-    "White": "Balts",
-    "Black": "Melns",
-    "Red": "Sarkans",
-    "Green": "Zaļš",
-    "Blue": "Zils",
-    "Yellow": "Dzeltens",
-    "Magenta": "Purpursarkana",
-    "Cyan": "Ciāna",
-    "Background": "Fons",
-    "Window": "Logs",
-    "Transparent": "Caurspīdīgs",
-    "Semi-Transparent": "Daļēji caurspīdīgs",
-    "Opaque": "Necaurspīdīgs",
-    "Font Size": "Šrifta izmērs",
-    "Text Edge Style": "Teksta ēnas stils",
-    "None": "Neviens",
-    "Raised": "Izvirzīts",
-    "Depressed": "Samazināts",
-    "Uniform": "Vienmērīgs",
-    "Dropshadow": "Ēnots",
-    "Font Family": "Šrifts",
-    "Proportional Sans-Serif": "Proportional Sans-Serif",
-    "Monospace Sans-Serif": "Monospace Sans-Serif",
-    "Proportional Serif": "Proportional Serif",
-    "Monospace Serif": "Monospace Serif",
-    "Casual": "Casual",
-    "Script": "Script",
-    "Small Caps": "Small Caps",
-    "Reset": "Atiestatīt",
-    "restore all settings to the default values": "atiestatīt iestatījumu uz noklusējumu",
-    "Done": "Gatavs",
-    "Caption Settings Dialog": "Parakstu iestatījumi",
-    "Beginning of dialog window. Escape will cancel and close the window.": "Paraksta iestatījumu sākums. Lai aizvērtu, spiediet ESC taustiņu.",
-    "End of dialog window.": "Parakstu iestatījumu loga beigas",
-    "{1} is loading.": "{1} ielādē.",
-    "Exit Picture-in-Picture": "Iziet no Attēls attēlā",
-    "Picture-in-Picture": "Attēls attēlā"
+  "Audio Player": "Audio atskaņotājs",
+  "Video Player": "Video atskaņotājs",
+  "Play": "Atskaņot",
+  "Pause": "Pauzēt",
+  "Replay": "Atkārtot",
+  "Current Time": "Esošais laiks",
+  "Duration": "Ilgums",
+  "Remaining Time": "Atlikušais laiks",
+  "Stream Type": "Straumes veids",
+  "LIVE": "LIVE",
+  "Seek to live, currently behind live": "Pāriet uz tiešraidi",
+  "Seek to live, currently playing live": "Pāriet uz tiešraidi",
+  "Loaded": "Ielādēts",
+  "Progress": "Progress",
+  "Progress Bar": "Progresa josla",
+  "progress bar timing: currentTime={1} duration={2}": "{1} no {2}",
+  "Fullscreen": "Pilnekrāna režīms",
+  "Exit Fullscreen": "Iziet no pilnekrāna režīma",
+  "Mute": "Izslēgt skaņu",
+  "Unmute": "Ieslēgt skaņu",
+  "Playback Rate": "Atskaņošanas ātrums",
+  "Subtitles": "Subtitri",
+  "subtitles off": "Izslēgt subtitrus",
+  "Captions": "Paraksti",
+  "captions off": "Izslēgt parakstus",
+  "Chapters": "Temati",
+  "Descriptions": "Apraksti",
+  "descriptions off": "Izslēgt aprakstus",
+  "Audio Track": "Audio celiņš",
+  "Volume Level": "Skaļums",
+  "You aborted the media playback": "Atskaņošana atcelta",
+  "A network error caused the media download to fail part-way.": "Tīkla kļūdas dēļ, multivides lejupielāde neizdevās.",
+  "The media could not be loaded, either because the server or network failed or because the format is not supported.": "Neizdevās ielādēt multividi, iespējams severa, vai tīkla kļūmes dēļ, vai neatbalstīta formāta dēļ.",
+  "The media playback was aborted due to a corruption problem or because the media used features your browser did not support.": "Atskaņošana tika pārtraukta tīkla kļūmes dēļ vai pārlūkprogrammas iespēju trūkuma dēļ.",
+  "No compatible source was found for this media.": "Netika atrasts atbilstošs multivides avots.",
+  "The media is encrypted and we do not have the keys to decrypt it.": "Multividi nevar atskaņot, jo tas ir kriptēts un nav pieejama dekriptēšanas atslēga.",
+  "Play Video": "Atskaņot video",
+  "Close": "Aizvērt",
+  "Close Modal Dialog": "Aizvērt logu",
+  "Modal Window": "Logs",
+  "This is a modal window": "Logs",
+  "This modal can be closed by pressing the Escape key or activating the close button.": "Šo logu var aizvērt, nospiežot uz aizvēršanas pogas vai taustiņa ESC.",
+  ", opens captions settings dialog": ", atvērs parakstu logu",
+  ", opens subtitles settings dialog": ", atvērs subtitru logu",
+  ", opens descriptions settings dialog": ", atvērs aprakstu logu",
+  ", selected": ", izvēlēts",
+  "captions settings": "parakstu iestatījumi",
+  "subtitles settings": "subtitru iestatījumi",
+  "descriptions settings": "aprakstu iestatījumi",
+  "Text": "Teksts",
+  "White": "Balts",
+  "Black": "Melns",
+  "Red": "Sarkans",
+  "Green": "Zaļš",
+  "Blue": "Zils",
+  "Yellow": "Dzeltens",
+  "Magenta": "Purpursarkana",
+  "Cyan": "Ciāna",
+  "Background": "Fons",
+  "Window": "Logs",
+  "Transparent": "Caurspīdīgs",
+  "Semi-Transparent": "Daļēji caurspīdīgs",
+  "Opaque": "Necaurspīdīgs",
+  "Font Size": "Šrifta izmērs",
+  "Text Edge Style": "Teksta ēnas stils",
+  "None": "Neviens",
+  "Raised": "Izvirzīts",
+  "Depressed": "Samazināts",
+  "Uniform": "Vienmērīgs",
+  "Dropshadow": "Ēnots",
+  "Font Family": "Šrifts",
+  "Proportional Sans-Serif": "Proportional Sans-Serif",
+  "Monospace Sans-Serif": "Monospace Sans-Serif",
+  "Proportional Serif": "Proportional Serif",
+  "Monospace Serif": "Monospace Serif",
+  "Casual": "Casual",
+  "Script": "Script",
+  "Small Caps": "Small Caps",
+  "Reset": "Atiestatīt",
+  "restore all settings to the default values": "atiestatīt iestatījumu uz noklusējumu",
+  "Done": "Gatavs",
+  "Caption Settings Dialog": "Parakstu iestatījumi",
+  "Beginning of dialog window. Escape will cancel and close the window.": "Paraksta iestatījumu sākums. Lai aizvērtu, spiediet ESC taustiņu.",
+  "End of dialog window.": "Parakstu iestatījumu loga beigas",
+  "{1} is loading.": "{1} ielādē.",
+  "Exit Picture-in-Picture": "Iziet no Attēls attēlā",
+  "Picture-in-Picture": "Attēls attēlā",
+  "Skip forward {1} seconds": "Pārtīt uz priekšu {1} sekundes",
+  "Skip backward {1} seconds": "Pārtīt atpakaļ {1} sekundes"
 }
diff --git a/media/player/videojs/videojs/lang/nb.js b/media/player/videojs/videojs/lang/nb.js
index 2acc4fe46b0..0c990c3f502 100644
--- a/media/player/videojs/videojs/lang/nb.js
+++ b/media/player/videojs/videojs/lang/nb.js
@@ -16,7 +16,7 @@ videojs.addLanguage('nb', {
   "Progress Bar": "Framdriftsviser",
   "progress bar timing: currentTime={1} duration={2}": "{1} av {2}",
   "Fullscreen": "Fullskjerm",
-  "Non-Fullscreen": "Lukk fullskjerm",
+  "Exit Fullscreen": "Lukk fullskjerm",
   "Mute": "Lyd av",
   "Unmute": "Lyd på",
   "Playback Rate": "Avspillingshastighet",
diff --git a/media/player/videojs/videojs/lang/nb.json b/media/player/videojs/videojs/lang/nb.json
index a2c843d108f..a2b38ad2153 100644
--- a/media/player/videojs/videojs/lang/nb.json
+++ b/media/player/videojs/videojs/lang/nb.json
@@ -16,7 +16,7 @@
   "Progress Bar": "Framdriftsviser",
   "progress bar timing: currentTime={1} duration={2}": "{1} av {2}",
   "Fullscreen": "Fullskjerm",
-  "Non-Fullscreen": "Lukk fullskjerm",
+  "Exit Fullscreen": "Lukk fullskjerm",
   "Mute": "Lyd av",
   "Unmute": "Lyd på",
   "Playback Rate": "Avspillingshastighet",
diff --git a/media/player/videojs/videojs/lang/nl.js b/media/player/videojs/videojs/lang/nl.js
index 0d043e9267d..e4e829ca98a 100644
--- a/media/player/videojs/videojs/lang/nl.js
+++ b/media/player/videojs/videojs/lang/nl.js
@@ -9,43 +9,45 @@ videojs.addLanguage('nl', {
   "Remaining Time": "Resterende tijd",
   "Stream Type": "Streamtype",
   "LIVE": "LIVE",
+  "Seek to live, currently behind live": "Zoek naar live, momenteel achter op live",
+  "Seek to live, currently playing live": "Zoek naar live, momenteel live",
   "Loaded": "Geladen",
   "Progress": "Voortgang",
   "Progress Bar": "Voortgangsbalk",
   "progress bar timing: currentTime={1} duration={2}": "{1} van {2}",
   "Fullscreen": "Volledig scherm",
-  "Non-Fullscreen": "Geen volledig scherm",
+  "Exit Fullscreen": "Volledig scherm uit",
   "Mute": "Dempen",
-  "Unmute": "Niet dempen",
+  "Unmute": "Dempen uit",
   "Playback Rate": "Afspeelsnelheid",
   "Subtitles": "Ondertiteling",
   "subtitles off": "ondertiteling uit",
-  "Captions": "Bijschriften",
-  "captions off": "bijschriften uit",
+  "Captions": "Ondertiteling (CC)",
+  "captions off": "ondertiteling (CC) uit",
   "Chapters": "Hoofdstukken",
   "Descriptions": "Beschrijvingen",
   "descriptions off": "beschrijvingen uit",
   "Audio Track": "Audiospoor",
-  "Volume Level": "Geluidsniveau",
+  "Volume Level": "Volume",
   "You aborted the media playback": "U heeft het afspelen van de media afgebroken",
-  "A network error caused the media download to fail part-way.": "Een netwerkfout heeft ervoor gezorgd dat het downloaden van de media halverwege is mislukt.",
-  "The media could not be loaded, either because the server or network failed or because the format is not supported.": "De media kon niet worden geladen, dit komt doordat of de server of het netwerk mislukt of doordat het formaat niet wordt ondersteund.",
-  "The media playback was aborted due to a corruption problem or because the media used features your browser did not support.": "Het afspelen van de media is afgebroken door een probleem met beschadeigde gegevens of doordat de media functies gebruikt die uw browser niet ondersteund.",
-  "No compatible source was found for this media.": "Er is geen geschikte bron voor deze media gevonden.",
-  "The media is encrypted and we do not have the keys to decrypt it.": "De media is versleuteld en we hebben de sleutels niet om deze te ontsleutelen.",
+  "A network error caused the media download to fail part-way.": "Een netwerkfout heeft ervoor gezorgd dat het downloaden van de media is mislukt.",
+  "The media could not be loaded, either because the server or network failed or because the format is not supported.": "De media kon niet worden geladen, doordat de server of het netwerk faalde of doordat het formaat niet wordt ondersteund.",
+  "The media playback was aborted due to a corruption problem or because the media used features your browser did not support.": "Het afspelen van de media werd afgebroken vanwege een corruptieprobleem of omdat de uw browser de gebruikte mediafuncties niet ondersteund.",
+  "No compatible source was found for this media.": "Er is geen geschikte bron gevonden voor dit medium.",
+  "The media is encrypted and we do not have the keys to decrypt it.": "De media is gecodeerd en we hebben niet de sleutels om het te decoderen.",
   "Play Video": "Video afspelen",
   "Close": "Sluiten",
   "Close Modal Dialog": "Extra venster sluiten",
   "Modal Window": "Extra venster",
   "This is a modal window": "Dit is een extra venster",
-  "This modal can be closed by pressing the Escape key or activating the close button.": "Dit venster kan worden gesloten door op de Escape-toets te drukken of door de sluiten-knop te activeren.",
-  ", opens captions settings dialog": ", opent instellingen-venster voor bijschriften",
-  ", opens subtitles settings dialog": ", opent instellingen-venster voor ondertitelingen",
-  ", opens descriptions settings dialog": ", opent instellingen-venster voor beschrijvingen",
+  "This modal can be closed by pressing the Escape key or activating the close button.": "Dit venster kan worden gesloten door op de Escape-toets te drukken of door de sluit-knop te activeren.",
+  ", opens captions settings dialog": ", opent instellingen venster voor ondertitelingen",
+  ", opens subtitles settings dialog": ", opent instellingen venster voor ondertitelingen",
+  ", opens descriptions settings dialog": ", opent instellingen venster voor beschrijvingen",
   ", selected": ", geselecteerd",
-  "captions settings": "bijschriften-instellingen",
-  "subtitles settings": "ondertiteling-instellingen",
-  "descriptions settings": "beschrijvingen-instellingen",
+  "captions settings": "ondertiteling instellingen",
+  "subtitles settings": "ondertiteling instellingen",
+  "descriptions settings": "beschrijvingen instellingen",
   "Text": "Tekst",
   "White": "Wit",
   "Black": "Zwart",
@@ -72,13 +74,23 @@ videojs.addLanguage('nl', {
   "Monospace Sans-Serif": "Monospace sans-serif",
   "Proportional Serif": "Proportioneel serif",
   "Monospace Serif": "Monospace serif",
-  "Casual": "Luchtig",
+  "Casual": "Informeel",
   "Script": "Script",
-  "Small Caps": "Kleine hoofdletters",
+  "Small Caps": "Kleine Hoofdletters",
   "Reset": "Herstellen",
-  "restore all settings to the default values": "alle instellingen naar de standaardwaarden herstellen",
-  "Done": "Klaar",
+  "restore all settings to the default values": "alle instellingen herstellen naar de standaardwaarden",
+  "Done": "Gereed",
   "Caption Settings Dialog": "Venster voor bijschriften-instellingen",
   "Beginning of dialog window. Escape will cancel and close the window.": "Begin van dialoogvenster. Escape zal annuleren en het venster sluiten.",
-  "End of dialog window.": "Einde van dialoogvenster."
+  "End of dialog window.": "Einde van dialoogvenster.",
+  "{1} is loading.": "{1} wordt geladen.",
+  "Exit Picture-in-Picture": "Picture-in-Picture uit",
+  "Picture-in-Picture": "Picture-in-Picture",
+  "No content": "Geen inhoud",
+  "Color": "Kleur",
+  "Opacity": "Transparantie",
+  "Text Background": "Tekst Achtergrond",
+  "Caption Area Background": "Achtergrond voor Ondertiteling",
+  "Skip forward {1} seconds": "{1} seconden vooruit",
+  "Skip backward {1} seconds": "{1} seconden terug"
 });
\ No newline at end of file
diff --git a/media/player/videojs/videojs/lang/nl.json b/media/player/videojs/videojs/lang/nl.json
index c7d0b7319b3..8d22c9a9a21 100644
--- a/media/player/videojs/videojs/lang/nl.json
+++ b/media/player/videojs/videojs/lang/nl.json
@@ -9,43 +9,45 @@
   "Remaining Time": "Resterende tijd",
   "Stream Type": "Streamtype",
   "LIVE": "LIVE",
+  "Seek to live, currently behind live": "Zoek naar live, momenteel achter op live",
+  "Seek to live, currently playing live": "Zoek naar live, momenteel live",
   "Loaded": "Geladen",
   "Progress": "Voortgang",
   "Progress Bar": "Voortgangsbalk",
   "progress bar timing: currentTime={1} duration={2}": "{1} van {2}",
   "Fullscreen": "Volledig scherm",
-  "Non-Fullscreen": "Geen volledig scherm",
+  "Exit Fullscreen": "Volledig scherm uit",
   "Mute": "Dempen",
-  "Unmute": "Niet dempen",
+  "Unmute": "Dempen uit",
   "Playback Rate": "Afspeelsnelheid",
   "Subtitles": "Ondertiteling",
   "subtitles off": "ondertiteling uit",
-  "Captions": "Bijschriften",
-  "captions off": "bijschriften uit",
+  "Captions": "Ondertiteling (CC)",
+  "captions off": "ondertiteling (CC) uit",
   "Chapters": "Hoofdstukken",
   "Descriptions": "Beschrijvingen",
   "descriptions off": "beschrijvingen uit",
   "Audio Track": "Audiospoor",
-  "Volume Level": "Geluidsniveau",
+  "Volume Level": "Volume",
   "You aborted the media playback": "U heeft het afspelen van de media afgebroken",
-  "A network error caused the media download to fail part-way.": "Een netwerkfout heeft ervoor gezorgd dat het downloaden van de media halverwege is mislukt.",
-  "The media could not be loaded, either because the server or network failed or because the format is not supported.": "De media kon niet worden geladen, dit komt doordat of de server of het netwerk mislukt of doordat het formaat niet wordt ondersteund.",
-  "The media playback was aborted due to a corruption problem or because the media used features your browser did not support.": "Het afspelen van de media is afgebroken door een probleem met beschadeigde gegevens of doordat de media functies gebruikt die uw browser niet ondersteund.",
-  "No compatible source was found for this media.": "Er is geen geschikte bron voor deze media gevonden.",
-  "The media is encrypted and we do not have the keys to decrypt it.": "De media is versleuteld en we hebben de sleutels niet om deze te ontsleutelen.",
+  "A network error caused the media download to fail part-way.": "Een netwerkfout heeft ervoor gezorgd dat het downloaden van de media is mislukt.",
+  "The media could not be loaded, either because the server or network failed or because the format is not supported.": "De media kon niet worden geladen, doordat de server of het netwerk faalde of doordat het formaat niet wordt ondersteund.",
+  "The media playback was aborted due to a corruption problem or because the media used features your browser did not support.": "Het afspelen van de media werd afgebroken vanwege een corruptieprobleem of omdat de uw browser de gebruikte mediafuncties niet ondersteund.",
+  "No compatible source was found for this media.": "Er is geen geschikte bron gevonden voor dit medium.",
+  "The media is encrypted and we do not have the keys to decrypt it.": "De media is gecodeerd en we hebben niet de sleutels om het te decoderen.",
   "Play Video": "Video afspelen",
   "Close": "Sluiten",
   "Close Modal Dialog": "Extra venster sluiten",
   "Modal Window": "Extra venster",
   "This is a modal window": "Dit is een extra venster",
-  "This modal can be closed by pressing the Escape key or activating the close button.": "Dit venster kan worden gesloten door op de Escape-toets te drukken of door de sluiten-knop te activeren.",
-  ", opens captions settings dialog": ", opent instellingen-venster voor bijschriften",
-  ", opens subtitles settings dialog": ", opent instellingen-venster voor ondertitelingen",
-  ", opens descriptions settings dialog": ", opent instellingen-venster voor beschrijvingen",
+  "This modal can be closed by pressing the Escape key or activating the close button.": "Dit venster kan worden gesloten door op de Escape-toets te drukken of door de sluit-knop te activeren.",
+  ", opens captions settings dialog": ", opent instellingen venster voor ondertitelingen",
+  ", opens subtitles settings dialog": ", opent instellingen venster voor ondertitelingen",
+  ", opens descriptions settings dialog": ", opent instellingen venster voor beschrijvingen",
   ", selected": ", geselecteerd",
-  "captions settings": "bijschriften-instellingen",
-  "subtitles settings": "ondertiteling-instellingen",
-  "descriptions settings": "beschrijvingen-instellingen",
+  "captions settings": "ondertiteling instellingen",
+  "subtitles settings": "ondertiteling instellingen",
+  "descriptions settings": "beschrijvingen instellingen",
   "Text": "Tekst",
   "White": "Wit",
   "Black": "Zwart",
@@ -72,13 +74,23 @@
   "Monospace Sans-Serif": "Monospace sans-serif",
   "Proportional Serif": "Proportioneel serif",
   "Monospace Serif": "Monospace serif",
-  "Casual": "Luchtig",
+  "Casual": "Informeel",
   "Script": "Script",
-  "Small Caps": "Kleine hoofdletters",
+  "Small Caps": "Kleine Hoofdletters",
   "Reset": "Herstellen",
-  "restore all settings to the default values": "alle instellingen naar de standaardwaarden herstellen",
-  "Done": "Klaar",
+  "restore all settings to the default values": "alle instellingen herstellen naar de standaardwaarden",
+  "Done": "Gereed",
   "Caption Settings Dialog": "Venster voor bijschriften-instellingen",
   "Beginning of dialog window. Escape will cancel and close the window.": "Begin van dialoogvenster. Escape zal annuleren en het venster sluiten.",
-  "End of dialog window.": "Einde van dialoogvenster."
-}
\ No newline at end of file
+  "End of dialog window.": "Einde van dialoogvenster.",
+  "{1} is loading.": "{1} wordt geladen.",
+  "Exit Picture-in-Picture": "Picture-in-Picture uit",
+  "Picture-in-Picture": "Picture-in-Picture",
+  "No content": "Geen inhoud",
+  "Color": "Kleur",
+  "Opacity": "Transparantie",
+  "Text Background": "Tekst Achtergrond",
+  "Caption Area Background": "Achtergrond voor Ondertiteling",
+  "Skip forward {1} seconds": "{1} seconden vooruit",
+  "Skip backward {1} seconds": "{1} seconden terug"
+}
diff --git a/media/player/videojs/videojs/lang/nn.js b/media/player/videojs/videojs/lang/nn.js
index 5823ca1632f..e87207d5e60 100644
--- a/media/player/videojs/videojs/lang/nn.js
+++ b/media/player/videojs/videojs/lang/nn.js
@@ -16,7 +16,7 @@ videojs.addLanguage('nn', {
   "Progress Bar": "Framdriftsvisar",
   "progress bar timing: currentTime={1} duration={2}": "{1} av {2}",
   "Fullscreen": "Fullskjerm",
-  "Non-Fullscreen": "Stenga fullskjerm",
+  "Exit Fullscreen": "Stenga fullskjerm",
   "Mute": "Lyd av",
   "Unmute": "Lyd på",
   "Playback Rate": "Avspelingshastigheit",
diff --git a/media/player/videojs/videojs/lang/nn.json b/media/player/videojs/videojs/lang/nn.json
index f02c064bca4..163783857eb 100644
--- a/media/player/videojs/videojs/lang/nn.json
+++ b/media/player/videojs/videojs/lang/nn.json
@@ -16,7 +16,7 @@
   "Progress Bar": "Framdriftsvisar",
   "progress bar timing: currentTime={1} duration={2}": "{1} av {2}",
   "Fullscreen": "Fullskjerm",
-  "Non-Fullscreen": "Stenga fullskjerm",
+  "Exit Fullscreen": "Stenga fullskjerm",
   "Mute": "Lyd av",
   "Unmute": "Lyd på",
   "Playback Rate": "Avspelingshastigheit",
diff --git a/media/player/videojs/videojs/lang/oc.js b/media/player/videojs/videojs/lang/oc.js
index d86b8a73abc..c785562118d 100644
--- a/media/player/videojs/videojs/lang/oc.js
+++ b/media/player/videojs/videojs/lang/oc.js
@@ -16,7 +16,7 @@ videojs.addLanguage('oc', {
   "Progress Bar": "Barra de progression",
   "progress bar timing: currentTime={1} duration={2}": "{1} sus {2}",
   "Fullscreen": "Ecran complèt",
-  "Non-Fullscreen": "Pas en ecran complèt",
+  "Exit Fullscreen": "Pas en ecran complèt",
   "Mute": "Copar lo son",
   "Unmute": "Restablir lo son",
   "Playback Rate": "Velocitat de lectura",
@@ -83,5 +83,8 @@ videojs.addLanguage('oc', {
   "Caption Settings Dialog": "Fenèstra de paramètres de legenda",
   "Beginning of dialog window. Escape will cancel and close the window.": "Debuta de la fenèstra. Escapar anullarà e tamparà la fenèstra",
   "End of dialog window.": "Fin de la fenèstra.",
-  "{1} is loading.": "{1} es a cargar."
+  "{1} is loading.": "{1} es a cargar.",
+  "Exit Picture-in-Picture": "Sortir de la vidèo incrustada",
+  "Picture-in-Picture": "Vidèo incrustada",
+  "No content": "Cap de contengut"
 });
\ No newline at end of file
diff --git a/media/player/videojs/videojs/lang/oc.json b/media/player/videojs/videojs/lang/oc.json
index db9e8d76b61..94684e80803 100644
--- a/media/player/videojs/videojs/lang/oc.json
+++ b/media/player/videojs/videojs/lang/oc.json
@@ -16,7 +16,7 @@
   "Progress Bar": "Barra de progression",
   "progress bar timing: currentTime={1} duration={2}": "{1} sus {2}",
   "Fullscreen": "Ecran complèt",
-  "Non-Fullscreen": "Pas en ecran complèt",
+  "Exit Fullscreen": "Pas en ecran complèt",
   "Mute": "Copar lo son",
   "Unmute": "Restablir lo son",
   "Playback Rate": "Velocitat de lectura",
@@ -83,5 +83,8 @@
   "Caption Settings Dialog": "Fenèstra de paramètres de legenda",
   "Beginning of dialog window. Escape will cancel and close the window.": "Debuta de la fenèstra. Escapar anullarà e tamparà la fenèstra",
   "End of dialog window.": "Fin de la fenèstra.",
-  "{1} is loading.": "{1} es a cargar."
+  "{1} is loading.": "{1} es a cargar.",
+  "Exit Picture-in-Picture": "Sortir de la vidèo incrustada",
+  "Picture-in-Picture": "Vidèo incrustada",
+  "No content": "Cap de contengut"  
 }
diff --git a/media/player/videojs/videojs/lang/pl.js b/media/player/videojs/videojs/lang/pl.js
index 4158df5f93f..ae39d5599f5 100644
--- a/media/player/videojs/videojs/lang/pl.js
+++ b/media/player/videojs/videojs/lang/pl.js
@@ -1,22 +1,25 @@
 videojs.addLanguage('pl', {
   "Audio Player": "Odtwarzacz audio",
   "Video Player": "Odtwarzacz wideo",
-  "Play": "Odtwarzaj",
-  "Pause": "Pauza",
+  "Play": "Odtwórz",
+  "Pause": "Wstrzymaj",
   "Replay": "Odtwórz ponownie",
   "Current Time": "Aktualny czas",
   "Duration": "Czas trwania",
   "Remaining Time": "Pozostały czas",
   "Stream Type": "Typ strumienia",
   "LIVE": "NA ŻYWO",
+  "Seek to live, currently behind live": "Przejdź do transmisji na żywo, obecnie trwa odtwarzanie z archiwum",
+  "Seek to live, currently playing live": "Przejdż do transmisji na żywo, obecnie trwa odtwarzanie na żywo",
   "Loaded": "Załadowany",
   "Progress": "Status",
-  "Progress Bar": "Pasek stanu",
+  "Progress Bar": "Pasek postępu",
+  "progress bar timing: currentTime={1} duration={2}": "{1} z {2}",
   "Fullscreen": "Pełny ekran",
-  "Non-Fullscreen": "Pełny ekran niedostępny",
-  "Mute": "Wyłącz dźwięk",
-  "Unmute": "Włącz dźwięk",
-  "Playback Rate": "Szybkość odtwarzania",
+  "Exit Fullscreen": "Pełny ekran niedostępny",
+  "Mute": "Wycisz",
+  "Unmute": "Wyłącz wyciszenie",
+  "Playback Rate": "Prędkość odtwarzania",
   "Subtitles": "Napisy",
   "subtitles off": "Napisy wyłączone",
   "Captions": "Transkrypcja",
@@ -27,17 +30,17 @@ videojs.addLanguage('pl', {
   "Audio Track": "Ścieżka audio",
   "Volume Level": "Poziom głośności",
   "You aborted the media playback": "Odtwarzanie zostało przerwane",
-  "A network error caused the media download to fail part-way.": "Problemy z siecią spowodowały błąd przy pobieraniu materiału wideo.",
-  "The media could not be loaded, either because the server or network failed or because the format is not supported.": "Materiał wideo nie może być załadowany, ponieważ wystąpił problem z siecią lub format nie jest obsługiwany",
-  "The media playback was aborted due to a corruption problem or because the media used features your browser did not support.": "Odtwarzanie materiału wideo zostało przerwane z powodu uszkodzonego pliku wideo lub z powodu błędu funkcji, które nie są wspierane przez przeglądarkę.",
-  "No compatible source was found for this media.": "Dla tego materiału wideo nie znaleziono kompatybilnego źródła.",
-  "The media is encrypted and we do not have the keys to decrypt it.": "Źródło jest zaszyfrowane i nie mamy kluczy do jego odszyfrowania.",
-  "Play Video": "Odtwarzaj wideo",
+  "A network error caused the media download to fail part-way.": "Błąd sieci spowodował częściowe niepowodzenie pobierania materiału wideo.",
+  "The media could not be loaded, either because the server or network failed or because the format is not supported.": "Materiał wideo nie może zostać załadowany, ponieważ wystąpił problem z serwerem lub siecią albo format materiału wideo nie jest obsługiwany",
+  "The media playback was aborted due to a corruption problem or because the media used features your browser did not support.": "Odtwarzanie materiału wideo zostało przerwane z powodu uszkodzonego pliku wideo lub z powodu użycia funkcji multimediów nieobsługiwanych przez Twoją przeglądarkę.",
+  "No compatible source was found for this media.": "Nie znaleziono kompatybilnego źródła dla tego typu materiału wideo.",
+  "The media is encrypted and we do not have the keys to decrypt it.": "Materiał jest zaszyfrowany, a nie mamy kluczy do jego odszyfrowania.",
+  "Play Video": "Odtwórz wideo",
   "Close": "Zamknij",
-  "Close Modal Dialog": "Zamknij okno modala",
-  "Modal Window": "Okno modala",
-  "This is a modal window": "To jest okno modala",
-  "This modal can be closed by pressing the Escape key or activating the close button.": "Ten modal możesz zamknąć naciskając przycisk Escape albo wybierając przycisk Zamknij.",
+  "Close Modal Dialog": "Zamknij okno modalne",
+  "Modal Window": "Okno modalne",
+  "This is a modal window": "To jest okno modalne",
+  "This modal can be closed by pressing the Escape key or activating the close button.": "To okno modalne możesz zamknąć, naciskając klawisz Escape albo wybierając przycisk Zamknij.",
   ", opens captions settings dialog": ", otwiera okno dialogowe ustawień transkrypcji",
   ", opens subtitles settings dialog": ", otwiera okno dialogowe napisów",
   ", opens descriptions settings dialog": ", otwiera okno dialogowe opisów",
@@ -52,8 +55,8 @@ videojs.addLanguage('pl', {
   "Green": "Zielony",
   "Blue": "Niebieski",
   "Yellow": "Żółty",
-  "Magenta": "Magenta",
-  "Cyan": "Cyjan",
+  "Magenta": "Karmazynowy",
+  "Cyan": "Cyjanowy",
   "Background": "Tło",
   "Window": "Okno",
   "Transparent": "Przezroczysty",
@@ -66,13 +69,22 @@ videojs.addLanguage('pl', {
   "Depressed": "Obniżony",
   "Uniform": "Równomierny",
   "Dropshadow": "Cień",
-  "Font Family": "Czcionka",
+  "Font Family": "Krój czcionki",
+  "Proportional Sans-Serif": "Bezszeryfowa, proporcjonalna",
+  "Monospace Sans-Serif": "Bezszeryfowa, stała odległość znaków",
+  "Proportional Serif": "Szeryfowa, proporcjonalna",
+  "Monospace Serif": "Szeryfowa, stała odległość znaków",
+  "Casual": "Casual",
+  "Script": "Script",
+  "Small Caps": "Kapitaliki",
   "Reset": "Ustawienia domyślne",
   "restore all settings to the default values": "zresetuj wszystkie ustawienia do domyślnych wartości",
   "Done": "Gotowe",
   "Caption Settings Dialog": "Okno dialogowe ustawień transkrypcji",
-  "Beginning of dialog window. Escape will cancel and close the window.": "Początek okna dialogowego. Escape anuluje i zamknie okno.",
+  "Beginning of dialog window. Escape will cancel and close the window.": "Początek okna dialogowego. Klawisz Escape anuluje i zamyka okno.",
   "End of dialog window.": "Koniec okna dialogowego.",
+  "{1} is loading.": "Wczytywanie pliku {1}.",
   "Exit Picture-in-Picture": "Wyjdź z trybu obraz w obrazie",
-  "Picture-in-Picture": "Obraz w obrazie"
+  "Picture-in-Picture": "Obraz w obrazie",
+  "No content": "Brak zawartości"
 });
\ No newline at end of file
diff --git a/media/player/videojs/videojs/lang/pl.json b/media/player/videojs/videojs/lang/pl.json
index 5d9b81f208c..8881b861c54 100644
--- a/media/player/videojs/videojs/lang/pl.json
+++ b/media/player/videojs/videojs/lang/pl.json
@@ -1,22 +1,25 @@
 {
   "Audio Player": "Odtwarzacz audio",
   "Video Player": "Odtwarzacz wideo",
-  "Play": "Odtwarzaj",
-  "Pause": "Pauza",
+  "Play": "Odtwórz",
+  "Pause": "Wstrzymaj",
   "Replay": "Odtwórz ponownie",
   "Current Time": "Aktualny czas",
   "Duration": "Czas trwania",
   "Remaining Time": "Pozostały czas",
   "Stream Type": "Typ strumienia",
   "LIVE": "NA ŻYWO",
+  "Seek to live, currently behind live": "Przejdź do transmisji na żywo, obecnie trwa odtwarzanie z archiwum",
+  "Seek to live, currently playing live": "Przejdż do transmisji na żywo, obecnie trwa odtwarzanie na żywo",
   "Loaded": "Załadowany",
   "Progress": "Status",
-  "Progress Bar": "Pasek stanu",
+  "Progress Bar": "Pasek postępu",
+  "progress bar timing: currentTime={1} duration={2}": "{1} z {2}",
   "Fullscreen": "Pełny ekran",
-  "Non-Fullscreen": "Pełny ekran niedostępny",
-  "Mute": "Wyłącz dźwięk",
-  "Unmute": "Włącz dźwięk",
-  "Playback Rate": "Szybkość odtwarzania",
+  "Exit Fullscreen": "Pełny ekran niedostępny",
+  "Mute": "Wycisz",
+  "Unmute": "Wyłącz wyciszenie",
+  "Playback Rate": "Prędkość odtwarzania",
   "Subtitles": "Napisy",
   "subtitles off": "Napisy wyłączone",
   "Captions": "Transkrypcja",
@@ -27,17 +30,17 @@
   "Audio Track": "Ścieżka audio",
   "Volume Level": "Poziom głośności",
   "You aborted the media playback": "Odtwarzanie zostało przerwane",
-  "A network error caused the media download to fail part-way.": "Problemy z siecią spowodowały błąd przy pobieraniu materiału wideo.",
-  "The media could not be loaded, either because the server or network failed or because the format is not supported.": "Materiał wideo nie może być załadowany, ponieważ wystąpił problem z siecią lub format nie jest obsługiwany",
-  "The media playback was aborted due to a corruption problem or because the media used features your browser did not support.": "Odtwarzanie materiału wideo zostało przerwane z powodu uszkodzonego pliku wideo lub z powodu błędu funkcji, które nie są wspierane przez przeglądarkę.",
-  "No compatible source was found for this media.": "Dla tego materiału wideo nie znaleziono kompatybilnego źródła.",
-  "The media is encrypted and we do not have the keys to decrypt it.": "Źródło jest zaszyfrowane i nie mamy kluczy do jego odszyfrowania.",
-  "Play Video": "Odtwarzaj wideo",
+  "A network error caused the media download to fail part-way.": "Błąd sieci spowodował częściowe niepowodzenie pobierania materiału wideo.",
+  "The media could not be loaded, either because the server or network failed or because the format is not supported.": "Materiał wideo nie może zostać załadowany, ponieważ wystąpił problem z serwerem lub siecią albo format materiału wideo nie jest obsługiwany",
+  "The media playback was aborted due to a corruption problem or because the media used features your browser did not support.": "Odtwarzanie materiału wideo zostało przerwane z powodu uszkodzonego pliku wideo lub z powodu użycia funkcji multimediów nieobsługiwanych przez Twoją przeglądarkę.",
+  "No compatible source was found for this media.": "Nie znaleziono kompatybilnego źródła dla tego typu materiału wideo.",
+  "The media is encrypted and we do not have the keys to decrypt it.": "Materiał jest zaszyfrowany, a nie mamy kluczy do jego odszyfrowania.",
+  "Play Video": "Odtwórz wideo",
   "Close": "Zamknij",
-  "Close Modal Dialog": "Zamknij okno modala",
-  "Modal Window": "Okno modala",
-  "This is a modal window": "To jest okno modala",
-  "This modal can be closed by pressing the Escape key or activating the close button.": "Ten modal możesz zamknąć naciskając przycisk Escape albo wybierając przycisk Zamknij.",
+  "Close Modal Dialog": "Zamknij okno modalne",
+  "Modal Window": "Okno modalne",
+  "This is a modal window": "To jest okno modalne",
+  "This modal can be closed by pressing the Escape key or activating the close button.": "To okno modalne możesz zamknąć, naciskając klawisz Escape albo wybierając przycisk Zamknij.",
   ", opens captions settings dialog": ", otwiera okno dialogowe ustawień transkrypcji",
   ", opens subtitles settings dialog": ", otwiera okno dialogowe napisów",
   ", opens descriptions settings dialog": ", otwiera okno dialogowe opisów",
@@ -52,8 +55,8 @@
   "Green": "Zielony",
   "Blue": "Niebieski",
   "Yellow": "Żółty",
-  "Magenta": "Magenta",
-  "Cyan": "Cyjan",
+  "Magenta": "Karmazynowy",
+  "Cyan": "Cyjanowy",
   "Background": "Tło",
   "Window": "Okno",
   "Transparent": "Przezroczysty",
@@ -66,13 +69,22 @@
   "Depressed": "Obniżony",
   "Uniform": "Równomierny",
   "Dropshadow": "Cień",
-  "Font Family": "Czcionka",
+  "Font Family": "Krój czcionki",
+  "Proportional Sans-Serif": "Bezszeryfowa, proporcjonalna",
+  "Monospace Sans-Serif": "Bezszeryfowa, stała odległość znaków",
+  "Proportional Serif": "Szeryfowa, proporcjonalna",
+  "Monospace Serif": "Szeryfowa, stała odległość znaków",
+  "Casual": "Casual",
+  "Script": "Script",
+  "Small Caps": "Kapitaliki",
   "Reset": "Ustawienia domyślne",
   "restore all settings to the default values": "zresetuj wszystkie ustawienia do domyślnych wartości",
   "Done": "Gotowe",
   "Caption Settings Dialog": "Okno dialogowe ustawień transkrypcji",
-  "Beginning of dialog window. Escape will cancel and close the window.": "Początek okna dialogowego. Escape anuluje i zamknie okno.",
+  "Beginning of dialog window. Escape will cancel and close the window.": "Początek okna dialogowego. Klawisz Escape anuluje i zamyka okno.",
   "End of dialog window.": "Koniec okna dialogowego.",
+  "{1} is loading.": "Wczytywanie pliku {1}.",
   "Exit Picture-in-Picture": "Wyjdź z trybu obraz w obrazie",
-  "Picture-in-Picture": "Obraz w obrazie"
+  "Picture-in-Picture": "Obraz w obrazie",
+  "No content": "Brak zawartości"
 }
diff --git a/media/player/videojs/videojs/lang/pt-BR.js b/media/player/videojs/videojs/lang/pt-BR.js
index 582f84a8742..3f6157599e2 100644
--- a/media/player/videojs/videojs/lang/pt-BR.js
+++ b/media/player/videojs/videojs/lang/pt-BR.js
@@ -14,9 +14,9 @@ videojs.addLanguage('pt-BR', {
   "Progress Bar": "Barra de progresso",
   "progress bar timing: currentTime={1} duration={2}": "{1} de {2}",
   "Fullscreen": "Tela Cheia",
-  "Non-Fullscreen": "Tela Normal",
+  "Exit Fullscreen": "Tela Normal",
   "Mute": "Mudo",
-  "Unmute": "Habilitar Som",
+  "Unmute": "Ativar o som",
   "Playback Rate": "Velocidade",
   "Subtitles": "Legendas",
   "subtitles off": "Sem Legendas",
diff --git a/media/player/videojs/videojs/lang/pt-BR.json b/media/player/videojs/videojs/lang/pt-BR.json
index 0ce4e54caf5..550b4cb5c41 100644
--- a/media/player/videojs/videojs/lang/pt-BR.json
+++ b/media/player/videojs/videojs/lang/pt-BR.json
@@ -14,9 +14,9 @@
   "Progress Bar": "Barra de progresso",
   "progress bar timing: currentTime={1} duration={2}": "{1} de {2}",
   "Fullscreen": "Tela Cheia",
-  "Non-Fullscreen": "Tela Normal",
+  "Exit Fullscreen": "Tela Normal",
   "Mute": "Mudo",
-  "Unmute": "Habilitar Som",
+  "Unmute": "Ativar o som",
   "Playback Rate": "Velocidade",
   "Subtitles": "Legendas",
   "subtitles off": "Sem Legendas",
diff --git a/media/player/videojs/videojs/lang/pt-PT.js b/media/player/videojs/videojs/lang/pt-PT.js
index ed85f68e9b4..63f11d4fa62 100644
--- a/media/player/videojs/videojs/lang/pt-PT.js
+++ b/media/player/videojs/videojs/lang/pt-PT.js
@@ -10,7 +10,7 @@ videojs.addLanguage('pt-PT', {
   "Loaded": "Carregado",
   "Progress": "Progresso",
   "Fullscreen": "Ecrã inteiro",
-  "Non-Fullscreen": "Ecrã normal",
+  "Exit Fullscreen": "Ecrã normal",
   "Mute": "Desativar som",
   "Unmute": "Ativar som",
   "Playback Rate": "Velocidade de reprodução",
diff --git a/media/player/videojs/videojs/lang/pt-PT.json b/media/player/videojs/videojs/lang/pt-PT.json
index 39d8c664bb0..2197896f998 100644
--- a/media/player/videojs/videojs/lang/pt-PT.json
+++ b/media/player/videojs/videojs/lang/pt-PT.json
@@ -10,7 +10,7 @@
   "Loaded": "Carregado",
   "Progress": "Progresso",
   "Fullscreen": "Ecrã inteiro",
-  "Non-Fullscreen": "Ecrã normal",
+  "Exit Fullscreen": "Ecrã normal",
   "Mute": "Desativar som",
   "Unmute": "Ativar som",
   "Playback Rate": "Velocidade de reprodução",
@@ -38,4 +38,4 @@
   ", opens subtitles settings dialog": ", abre janela com definições de legendas",
   ", opens descriptions settings dialog": ", abre janela com definições de descrições",
   ", selected": ", seleccionado"
-}
\ No newline at end of file
+}
diff --git a/media/player/videojs/videojs/lang/ro.js b/media/player/videojs/videojs/lang/ro.js
index 824d89e8d46..2d66b4696c5 100644
--- a/media/player/videojs/videojs/lang/ro.js
+++ b/media/player/videojs/videojs/lang/ro.js
@@ -16,7 +16,7 @@ videojs.addLanguage('ro', {
   "Progress Bar": "Bară de progres",
   "progress bar timing: currentTime={1} duration={2}": "{1} din {2}",
   "Fullscreen": "Ecran complet",
-  "Non-Fullscreen": "Ecran parțial",
+  "Exit Fullscreen": "Ecran parțial",
   "Mute": "Suprimare sunet",
   "Unmute": "Activare sunet",
   "Playback Rate": "Rată de redare",
diff --git a/media/player/videojs/videojs/lang/ro.json b/media/player/videojs/videojs/lang/ro.json
index bed65d61f98..a4a60de7694 100644
--- a/media/player/videojs/videojs/lang/ro.json
+++ b/media/player/videojs/videojs/lang/ro.json
@@ -16,7 +16,7 @@
   "Progress Bar": "Bară de progres",
   "progress bar timing: currentTime={1} duration={2}": "{1} din {2}",
   "Fullscreen": "Ecran complet",
-  "Non-Fullscreen": "Ecran parțial",
+  "Exit Fullscreen": "Ecran parțial",
   "Mute": "Suprimare sunet",
   "Unmute": "Activare sunet",
   "Playback Rate": "Rată de redare",
diff --git a/media/player/videojs/videojs/lang/ru.js b/media/player/videojs/videojs/lang/ru.js
index 973daf3f7a2..38089ad89dd 100644
--- a/media/player/videojs/videojs/lang/ru.js
+++ b/media/player/videojs/videojs/lang/ru.js
@@ -1,6 +1,6 @@
 videojs.addLanguage('ru', {
-  "Audio Player": "Аудио проигрыватель",
-  "Video Player": "Видео проигрыватель",
+  "Audio Player": "Аудиоплеер",
+  "Video Player": "Видеоплеер",
   "Play": "Воспроизвести",
   "Pause": "Приостановить",
   "Replay": "Воспроизвести снова",
@@ -8,13 +8,15 @@ videojs.addLanguage('ru', {
   "Duration": "Продолжительность",
   "Remaining Time": "Оставшееся время",
   "Stream Type": "Тип потока",
-  "LIVE": "ОНЛАЙН",
+  "LIVE": "ПРЯМОЙ ЭФИР",
+  "Seek to live, currently behind live": "Переход к прямому эфиру (воспроизведение идёт с отставанием)",
+  "Seek to live, currently playing live": "Переход к прямому эфиру (воспроизведение идёт без отставания)",
   "Loaded": "Загрузка",
   "Progress": "Прогресс",
   "Progress Bar": "Индикатор загрузки",
   "progress bar timing: currentTime={1} duration={2}": "{1} из {2}",
   "Fullscreen": "Полноэкранный режим",
-  "Non-Fullscreen": "Неполноэкранный режим",
+  "Exit Fullscreen": "Неполноэкранный режим",
   "Mute": "Без звука",
   "Unmute": "Со звуком",
   "Playback Rate": "Скорость воспроизведения",
@@ -28,11 +30,11 @@ videojs.addLanguage('ru', {
   "Audio Track": "Звуковая дорожка",
   "Volume Level": "Уровень громкости",
   "You aborted the media playback": "Вы прервали воспроизведение видео",
-  "A network error caused the media download to fail part-way.": "Ошибка сети вызвала сбой во время загрузки видео.",
-  "The media could not be loaded, either because the server or network failed or because the format is not supported.": "Невозможно загрузить видео из-за сетевого или серверного сбоя либо формат не поддерживается.",
-  "The media playback was aborted due to a corruption problem or because the media used features your browser did not support.": "Воспроизведение видео было приостановлено из-за повреждения либо в связи с тем, что видео использует функции, неподдерживаемые вашим браузером.",
+  "A network error caused the media download to fail part-way.": "Ошибка сети вызвала сбой во время загрузки.",
+  "The media could not be loaded, either because the server or network failed or because the format is not supported.": "Не удалось загрузить видео из-за сетевого или серверного сбоя либо неподдерживаемого формата видео.",
+  "The media playback was aborted due to a corruption problem or because the media used features your browser did not support.": "Воспроизведение прервано из-за повреждения либо в связи с тем, что видео использует функции, неподдерживаемые вашим браузером.",
   "No compatible source was found for this media.": "Совместимые источники для этого видео отсутствуют.",
-  "The media is encrypted and we do not have the keys to decrypt it.": "Видео в зашифрованном виде, и у нас нет ключей для расшифровки.",
+  "The media is encrypted and we do not have the keys to decrypt it.": "Видео зашифровано, а у нас нет ключей для его расшифровки.",
   "Play Video": "Воспроизвести видео",
   "Close": "Закрыть",
   "Close Modal Dialog": "Закрыть модальное окно",
@@ -72,14 +74,18 @@ videojs.addLanguage('ru', {
   "Monospace Sans-Serif": "Моноширинный без засечек",
   "Proportional Serif": "Пропорциональный с засечками",
   "Monospace Serif": "Моноширинный с засечками",
-  "Casual": "Случайный",
-  "Script": "Письменный",
-  "Small Caps": "Малые прописные",
+  "Casual": "Казуальный",
+  "Script": "Рукописный",
+  "Small Caps": "Капитель",
   "Reset": "Сбросить",
-  "restore all settings to the default values": "сбросить все найстройки по умолчанию",
+  "restore all settings to the default values": "сбросить все настройки на значения по умолчанию",
   "Done": "Готово",
   "Caption Settings Dialog": "Диалог настроек подписи",
-  "Beginning of dialog window. Escape will cancel and close the window.": "Начало диалоговго окна. Кнопка Escape закроет или отменит окно",
+  "Beginning of dialog window. Escape will cancel and close the window.": "Начало диалогового окна. Нажмите Escape для отмены и закрытия окна",
   "End of dialog window.": "Конец диалогового окна.",
-  "{1} is loading.": "{1} загружается."
+  "{1} is loading.": "{1} загружается.",
+  "Exit Picture-in-Picture": "Закрыть картинку в картинке",
+  "Picture-in-Picture": "Картинка в картинке",
+  "Skip forward {1} seconds": "На {1} секунд вперед",
+  "Skip backward {1} seconds": "На {1} секунд назад"
 });
\ No newline at end of file
diff --git a/media/player/videojs/videojs/lang/ru.json b/media/player/videojs/videojs/lang/ru.json
index eb6b33f8334..507cf6856f4 100644
--- a/media/player/videojs/videojs/lang/ru.json
+++ b/media/player/videojs/videojs/lang/ru.json
@@ -1,6 +1,6 @@
 {
-  "Audio Player": "Аудио проигрыватель",
-  "Video Player": "Видео проигрыватель",
+  "Audio Player": "Аудиоплеер",
+  "Video Player": "Видеоплеер",
   "Play": "Воспроизвести",
   "Pause": "Приостановить",
   "Replay": "Воспроизвести снова",
@@ -8,13 +8,15 @@
   "Duration": "Продолжительность",
   "Remaining Time": "Оставшееся время",
   "Stream Type": "Тип потока",
-  "LIVE": "ОНЛАЙН",
+  "LIVE": "ПРЯМОЙ ЭФИР",
+  "Seek to live, currently behind live": "Переход к прямому эфиру (воспроизведение идёт с отставанием)",
+  "Seek to live, currently playing live": "Переход к прямому эфиру (воспроизведение идёт без отставания)",
   "Loaded": "Загрузка",
   "Progress": "Прогресс",
   "Progress Bar": "Индикатор загрузки",
   "progress bar timing: currentTime={1} duration={2}": "{1} из {2}",
   "Fullscreen": "Полноэкранный режим",
-  "Non-Fullscreen": "Неполноэкранный режим",
+  "Exit Fullscreen": "Неполноэкранный режим",
   "Mute": "Без звука",
   "Unmute": "Со звуком",
   "Playback Rate": "Скорость воспроизведения",
@@ -28,11 +30,11 @@
   "Audio Track": "Звуковая дорожка",
   "Volume Level": "Уровень громкости",
   "You aborted the media playback": "Вы прервали воспроизведение видео",
-  "A network error caused the media download to fail part-way.": "Ошибка сети вызвала сбой во время загрузки видео.",
-  "The media could not be loaded, either because the server or network failed or because the format is not supported.": "Невозможно загрузить видео из-за сетевого или серверного сбоя либо формат не поддерживается.",
-  "The media playback was aborted due to a corruption problem or because the media used features your browser did not support.": "Воспроизведение видео было приостановлено из-за повреждения либо в связи с тем, что видео использует функции, неподдерживаемые вашим браузером.",
+  "A network error caused the media download to fail part-way.": "Ошибка сети вызвала сбой во время загрузки.",
+  "The media could not be loaded, either because the server or network failed or because the format is not supported.": "Не удалось загрузить видео из-за сетевого или серверного сбоя либо неподдерживаемого формата видео.",
+  "The media playback was aborted due to a corruption problem or because the media used features your browser did not support.": "Воспроизведение прервано из-за повреждения либо в связи с тем, что видео использует функции, неподдерживаемые вашим браузером.",
   "No compatible source was found for this media.": "Совместимые источники для этого видео отсутствуют.",
-  "The media is encrypted and we do not have the keys to decrypt it.": "Видео в зашифрованном виде, и у нас нет ключей для расшифровки.",
+  "The media is encrypted and we do not have the keys to decrypt it.": "Видео зашифровано, а у нас нет ключей для его расшифровки.",
   "Play Video": "Воспроизвести видео",
   "Close": "Закрыть",
   "Close Modal Dialog": "Закрыть модальное окно",
@@ -72,14 +74,18 @@
   "Monospace Sans-Serif": "Моноширинный без засечек",
   "Proportional Serif": "Пропорциональный с засечками",
   "Monospace Serif": "Моноширинный с засечками",
-  "Casual": "Случайный",
-  "Script": "Письменный",
-  "Small Caps": "Малые прописные",
+  "Casual": "Казуальный",
+  "Script": "Рукописный",
+  "Small Caps": "Капитель",
   "Reset": "Сбросить",
-  "restore all settings to the default values": "сбросить все найстройки по умолчанию",
+  "restore all settings to the default values": "сбросить все настройки на значения по умолчанию",
   "Done": "Готово",
   "Caption Settings Dialog": "Диалог настроек подписи",
-  "Beginning of dialog window. Escape will cancel and close the window.": "Начало диалоговго окна. Кнопка Escape закроет или отменит окно",
+  "Beginning of dialog window. Escape will cancel and close the window.": "Начало диалогового окна. Нажмите Escape для отмены и закрытия окна",
   "End of dialog window.": "Конец диалогового окна.",
-  "{1} is loading.": "{1} загружается."
+  "{1} is loading.": "{1} загружается.",
+  "Exit Picture-in-Picture": "Закрыть картинку в картинке",
+  "Picture-in-Picture": "Картинка в картинке",
+  "Skip forward {1} seconds": "На {1} секунд вперед",
+  "Skip backward {1} seconds": "На {1} секунд назад"
 }
diff --git a/media/player/videojs/videojs/lang/sk.js b/media/player/videojs/videojs/lang/sk.js
index e3f9d800e52..5926628f80a 100644
--- a/media/player/videojs/videojs/lang/sk.js
+++ b/media/player/videojs/videojs/lang/sk.js
@@ -14,7 +14,7 @@ videojs.addLanguage('sk', {
   "Progress Bar": "Ukazovateľ priebehu",
   "progress bar timing: currentTime={1} duration={2}": "časovanie ukazovateľa priebehu: currentTime={1} duration={2}",
   "Fullscreen": "Režim celej obrazovky",
-  "Non-Fullscreen": "Režim normálnej obrazovky",
+  "Exit Fullscreen": "Režim normálnej obrazovky",
   "Mute": "Stlmiť",
   "Unmute": "Zrušiť stlmenie",
   "Playback Rate": "Rýchlosť prehrávania",
diff --git a/media/player/videojs/videojs/lang/sk.json b/media/player/videojs/videojs/lang/sk.json
index 9c3f560a415..b2ec8e23c38 100644
--- a/media/player/videojs/videojs/lang/sk.json
+++ b/media/player/videojs/videojs/lang/sk.json
@@ -14,7 +14,7 @@
   "Progress Bar": "Ukazovateľ priebehu",
   "progress bar timing: currentTime={1} duration={2}": "časovanie ukazovateľa priebehu: currentTime={1} duration={2}",
   "Fullscreen": "Režim celej obrazovky",
-  "Non-Fullscreen": "Režim normálnej obrazovky",
+  "Exit Fullscreen": "Režim normálnej obrazovky",
   "Mute": "Stlmiť",
   "Unmute": "Zrušiť stlmenie",
   "Playback Rate": "Rýchlosť prehrávania",
diff --git a/media/player/videojs/videojs/lang/sl.js b/media/player/videojs/videojs/lang/sl.js
index f0284d3ec2d..8be4931254c 100644
--- a/media/player/videojs/videojs/lang/sl.js
+++ b/media/player/videojs/videojs/lang/sl.js
@@ -16,7 +16,7 @@ videojs.addLanguage('sl', {
   "Progress Bar": "Vrstica napredka",
   "progress bar timing: currentTime={1} duration={2}": "{1} od {2}",
   "Fullscreen": "Celozaslonski prikaz",
-  "Non-Fullscreen": "Prikaz na delu zaslona",
+  "Exit Fullscreen": "Prikaz na delu zaslona",
   "Mute": "Izključi zvok",
   "Unmute": "Vključi zvok",
   "Playback Rate": "Hitrost predvajanja",
diff --git a/media/player/videojs/videojs/lang/sl.json b/media/player/videojs/videojs/lang/sl.json
index 0ddc50cbd42..86b173108ac 100644
--- a/media/player/videojs/videojs/lang/sl.json
+++ b/media/player/videojs/videojs/lang/sl.json
@@ -16,7 +16,7 @@
   "Progress Bar": "Vrstica napredka",
   "progress bar timing: currentTime={1} duration={2}": "{1} od {2}",
   "Fullscreen": "Celozaslonski prikaz",
-  "Non-Fullscreen": "Prikaz na delu zaslona",
+  "Exit Fullscreen": "Prikaz na delu zaslona",
   "Mute": "Izključi zvok",
   "Unmute": "Vključi zvok",
   "Playback Rate": "Hitrost predvajanja",
diff --git a/media/player/videojs/videojs/lang/sr.js b/media/player/videojs/videojs/lang/sr.js
index ba81d4dd5d8..3071b78bae1 100644
--- a/media/player/videojs/videojs/lang/sr.js
+++ b/media/player/videojs/videojs/lang/sr.js
@@ -9,7 +9,7 @@ videojs.addLanguage('sr', {
   "Loaded": "Učitan",
   "Progress": "Progres",
   "Fullscreen": "Pun ekran",
-  "Non-Fullscreen": "Mali ekran",
+  "Exit Fullscreen": "Mali ekran",
   "Mute": "Prigušen",
   "Unmute": "Ne-prigušen",
   "Playback Rate": "Stopa reprodukcije",
diff --git a/media/player/videojs/videojs/lang/sr.json b/media/player/videojs/videojs/lang/sr.json
index 512466c8628..87884ba455e 100644
--- a/media/player/videojs/videojs/lang/sr.json
+++ b/media/player/videojs/videojs/lang/sr.json
@@ -9,7 +9,7 @@
   "Loaded": "Učitan",
   "Progress": "Progres",
   "Fullscreen": "Pun ekran",
-  "Non-Fullscreen": "Mali ekran",
+  "Exit Fullscreen": "Mali ekran",
   "Mute": "Prigušen",
   "Unmute": "Ne-prigušen",
   "Playback Rate": "Stopa reprodukcije",
diff --git a/media/player/videojs/videojs/lang/sv.js b/media/player/videojs/videojs/lang/sv.js
index 71422ef0412..6e00283ab46 100644
--- a/media/player/videojs/videojs/lang/sv.js
+++ b/media/player/videojs/videojs/lang/sv.js
@@ -36,7 +36,7 @@ videojs.addLanguage('sv', {
   "Monospace Serif": "Monospace Serif",
   "Mute": "Ljud av",
   "No compatible source was found for this media.": "Det gick inte att hitta någon kompatibel källa för den här videon.",
-  "Non-Fullscreen": "Ej fullskärm",
+  "Exit Fullscreen": "Ej fullskärm",
   "None": "Ingen",
   "Opaque": "Opak",
   "Pause": "Pausa",
diff --git a/media/player/videojs/videojs/lang/sv.json b/media/player/videojs/videojs/lang/sv.json
index dc020f2f2e8..e243872755f 100644
--- a/media/player/videojs/videojs/lang/sv.json
+++ b/media/player/videojs/videojs/lang/sv.json
@@ -36,7 +36,7 @@
   "Monospace Serif": "Monospace Serif",
   "Mute": "Ljud av",
   "No compatible source was found for this media.": "Det gick inte att hitta någon kompatibel källa för den här videon.",
-  "Non-Fullscreen": "Ej fullskärm",
+  "Exit Fullscreen": "Ej fullskärm",
   "None": "Ingen",
   "Opaque": "Opak",
   "Pause": "Pausa",
diff --git a/media/player/videojs/videojs/lang/te.js b/media/player/videojs/videojs/lang/te.js
index 72bc79380be..9b5c9b822ea 100644
--- a/media/player/videojs/videojs/lang/te.js
+++ b/media/player/videojs/videojs/lang/te.js
@@ -16,7 +16,7 @@ videojs.addLanguage('te', {
   "Progress Bar": "ప్రోగ్రెస్ బార్",
   "progress bar timing: currentTime={1} duration={2}": "{1} యొక్క {2}",
   "Fullscreen": "పూర్తి స్క్రీన్",
-  "Non-Fullscreen": "పూర్తి స్క్రీన్ నుండి నిష్క్రమించండి",
+  "Exit Fullscreen": "పూర్తి స్క్రీన్ నుండి నిష్క్రమించండి",
   "Mute": "మ్యూట్",
   "Unmute": "అన్మ్యూట్ చేయండి",
   "Playback Rate": "ప్లేబ్యాక్ రేట్",
diff --git a/media/player/videojs/videojs/lang/te.json b/media/player/videojs/videojs/lang/te.json
index c9959dc7704..4c84f5da753 100644
--- a/media/player/videojs/videojs/lang/te.json
+++ b/media/player/videojs/videojs/lang/te.json
@@ -16,7 +16,7 @@
   "Progress Bar": "ప్రోగ్రెస్ బార్",
   "progress bar timing: currentTime={1} duration={2}": "{1} యొక్క {2}",
   "Fullscreen": "పూర్తి స్క్రీన్",
-  "Non-Fullscreen": "పూర్తి స్క్రీన్ నుండి నిష్క్రమించండి",
+  "Exit Fullscreen": "పూర్తి స్క్రీన్ నుండి నిష్క్రమించండి",
   "Mute": "మ్యూట్",
   "Unmute": "అన్మ్యూట్ చేయండి",
   "Playback Rate": "ప్లేబ్యాక్ రేట్",
diff --git a/media/player/videojs/videojs/lang/th.js b/media/player/videojs/videojs/lang/th.js
index 63ac6886977..e730b310009 100644
--- a/media/player/videojs/videojs/lang/th.js
+++ b/media/player/videojs/videojs/lang/th.js
@@ -16,7 +16,7 @@ videojs.addLanguage('th', {
   "Progress Bar": "แถบแสดงความคืบหน้า",
   "progress bar timing: currentTime={1} duration={2}": "{1} ของ {2}",
   "Fullscreen": "แบบเต็มหน้าจอ",
-  "Non-Fullscreen": "ไม่ใช่แบบเต็มหน้าจอ",
+  "Exit Fullscreen": "ไม่ใช่แบบเต็มหน้าจอ",
   "Mute": "ปิดเสียง",
   "Unmute": "ยกเลิกการปิดเสียง",
   "Playback Rate": "อัตราการเล่น",
diff --git a/media/player/videojs/videojs/lang/th.json b/media/player/videojs/videojs/lang/th.json
index 2347145fc7d..0219842481e 100644
--- a/media/player/videojs/videojs/lang/th.json
+++ b/media/player/videojs/videojs/lang/th.json
@@ -16,7 +16,7 @@
   "Progress Bar": "แถบแสดงความคืบหน้า",
   "progress bar timing: currentTime={1} duration={2}": "{1} ของ {2}",
   "Fullscreen": "แบบเต็มหน้าจอ",
-  "Non-Fullscreen": "ไม่ใช่แบบเต็มหน้าจอ",
+  "Exit Fullscreen": "ไม่ใช่แบบเต็มหน้าจอ",
   "Mute": "ปิดเสียง",
   "Unmute": "ยกเลิกการปิดเสียง",
   "Playback Rate": "อัตราการเล่น",
@@ -86,4 +86,4 @@
   "{1} is loading.": "กำลังโหลด {1}",
   "Exit Picture-in-Picture": "ออกจากการเล่นภาพควบคู่",
   "Picture-in-Picture": "การเล่นภาพควบคู่"
-}
\ No newline at end of file
+}
diff --git a/media/player/videojs/videojs/lang/tr.js b/media/player/videojs/videojs/lang/tr.js
index f9edfeb7464..0b367bbafd2 100644
--- a/media/player/videojs/videojs/lang/tr.js
+++ b/media/player/videojs/videojs/lang/tr.js
@@ -1,4 +1,6 @@
 videojs.addLanguage('tr', {
+  "Audio Player": "Ses Oynatıcısı",
+  "Video Player": "Video Oynatıcısı",
   "Play": "Oynat",
   "Pause": "Duraklat",
   "Replay": "Yeniden Oynat",
@@ -7,33 +9,38 @@ videojs.addLanguage('tr', {
   "Remaining Time": "Kalan Süre",
   "Stream Type": "Yayın Tipi",
   "LIVE": "CANLI",
+  "Seek to live, currently behind live": "Canlıya git, şu anda canlının gerisinde",
+  "Seek to live, currently playing live": "Canlıya git, şu anda canlı oynuyor",
   "Loaded": "Yüklendi",
   "Progress": "Yükleniyor",
+  "Progress Bar": "İlerleme Çubuğu",
+  "progress bar timing: currentTime={1} duration={2}": "{1}/{2}",
   "Fullscreen": "Tam Ekran",
-  "Non-Fullscreen": "Küçük Ekran",
-  "Mute": "Ses Kapa",
-  "Unmute": "Ses Aç",
+  "Exit Fullscreen": "Tam Ekrandan Çık",
+  "Mute": "Sessiz",
+  "Unmute": "Sesi Aç",
   "Playback Rate": "Oynatma Hızı",
-  "Subtitles": "Altyazı",
+  "Subtitles": "Altyazılar",
   "subtitles off": "Altyazı Kapalı",
-  "Captions": "Altyazı",
+  "Captions": "Altyazılar",
   "captions off": "Altyazı Kapalı",
   "Chapters": "Bölümler",
-  "Close Modal Dialog": "Dialogu Kapat",
+  "Close Modal Dialog": "Etkileşim Penceresini Kapat",
   "Descriptions": "Açıklamalar",
-  "descriptions off": "Açıklamalar kapalı",
-  "Audio Track": "Ses Dosyası",
-  "You aborted the media playback": "Video oynatmayı iptal ettiniz",
-  "A network error caused the media download to fail part-way.": "Video indirilirken bağlantı sorunu oluştu.",
-  "The media could not be loaded, either because the server or network failed or because the format is not supported.": "Video oynatılamadı, ağ ya da sunucu hatası veya belirtilen format desteklenmiyor.",
-  "The media playback was aborted due to a corruption problem or because the media used features your browser did not support.": "Tarayıcınız desteklemediği için videoda hata oluştu.",
-  "No compatible source was found for this media.": "Video için kaynak bulunamadı.",
-  "The media is encrypted and we do not have the keys to decrypt it.": "Video, şifrelenmiş bir kaynaktan geliyor ve oynatmak için gerekli anahtar bulunamadı.",
+  "descriptions off": "açıklamalar kapalı",
+  "Audio Track": "Ses Parçası",
+  "Volume Level": "Ses Düzeyi",
+  "You aborted the media playback": "Medyayı oynatmayı iptal ettiniz",
+  "A network error caused the media download to fail part-way.": "Medya indirme işleminin kısmen başarısız olmasına neden olan bir ağ sorunu oluştu.",
+  "The media could not be loaded, either because the server or network failed or because the format is not supported.": "Sunucu veya ağ hatasından ya da biçim desteklenmediğinden medya yüklenemedi.",
+  "The media playback was aborted due to a corruption problem or because the media used features your browser did not support.": "Medya oynatma, bir bozulma sorunu nedeniyle veya medya, tarayıcınızın desteklemediği özellikleri kullandığı için durduruldu.",
+  "No compatible source was found for this media.": "Bu medya için uyumlu bir kaynak bulunamadı.",
+  "The media is encrypted and we do not have the keys to decrypt it.": "Medya, şifrelenmiş bir kaynaktan geliyor ve oynatmak için gerekli anahtar bulunamadı.",
   "Play Video": "Videoyu Oynat",
   "Close": "Kapat",
-  "Modal Window": "Modal Penceresi",
-  "This is a modal window": "Bu bir modal penceresidir",
-  "This modal can be closed by pressing the Escape key or activating the close button.": "Bu modal ESC tuşuna basarak ya da kapata tıklanarak kapatılabilir.",
+  "Modal Window": "Etkileşim Penceresi",
+  "This is a modal window": "Bu bir etkileşim penceresidir",
+  "This modal can be closed by pressing the Escape key or activating the close button.": "Bu etkileşim penceresi ESC tuşuna basarak ya da kapat butonuna tıklanarak kapatılabilir.",
   ", opens captions settings dialog": ", altyazı ayarları menüsünü açar",
   ", opens subtitles settings dialog": ", altyazı ayarları menüsünü açar",
   ", opens descriptions settings dialog": ", açıklama ayarları menüsünü açar",
@@ -41,7 +48,7 @@ videojs.addLanguage('tr', {
   "captions settings": "altyazı ayarları",
   "subtitles settings": "altyazı ayarları",
   "descriptions settings": "açıklama ayarları",
-  "Text": "Yazı",
+  "Text": "Metin",
   "White": "Beyaz",
   "Black": "Siyah",
   "Red": "Kırmızı",
@@ -55,10 +62,10 @@ videojs.addLanguage('tr', {
   "Transparent": "Saydam",
   "Semi-Transparent": "Yarı-Saydam",
   "Opaque": "Mat",
-  "Font Size": "Yazı Boyutu",
-  "Text Edge Style": "Yazı Kenarlıkları",
+  "Font Size": "Metin Boyutu",
+  "Text Edge Style": "Metin Kenar Stili",
   "None": "Hiçbiri",
-  "Raised": "Kabartılmış",
+  "Raised": "Kabarık",
   "Depressed": "Yassı",
   "Uniform": "Düz",
   "Dropshadow": "Gölgeli",
@@ -70,7 +77,14 @@ videojs.addLanguage('tr', {
   "Casual": "Gündelik",
   "Script": "El Yazısı",
   "Small Caps": "Küçük Boyutlu Büyük Harfli",
+  "Reset": "Sıfırla",
+  "restore all settings to the default values": "tüm ayarları varsayılan değerlere geri yükler",
   "Done": "Tamam",
   "Caption Settings Dialog": "Altyazı Ayarları Menüsü",
-  "Beginning of dialog window. Escape will cancel and close the window.": "Diyalog penceresinin başlangıcı. ESC tuşu işlemi iptal edip pencereyi kapatacaktır."
+  "Beginning of dialog window. Escape will cancel and close the window.": "Etkileşim penceresinin başlangıcı. ESC tuşu işlemi iptal edip pencereyi kapatacaktır.",
+  "End of dialog window.": "Etkileşim penceresinin sonu.",
+  "{1} is loading.": "{1} yükleniyor.",
+  "Exit Picture-in-Picture": "Mini oynatıcıdan çık",
+  "Picture-in-Picture": "Mini oynatıcı",
+  "No content": "İçerik yok"
 });
\ No newline at end of file
diff --git a/media/player/videojs/videojs/lang/tr.json b/media/player/videojs/videojs/lang/tr.json
index 07e183703b5..141776a69c4 100644
--- a/media/player/videojs/videojs/lang/tr.json
+++ b/media/player/videojs/videojs/lang/tr.json
@@ -1,4 +1,6 @@
 {
+  "Audio Player": "Ses Oynatıcısı",
+  "Video Player": "Video Oynatıcısı",
   "Play": "Oynat",
   "Pause": "Duraklat",
   "Replay": "Yeniden Oynat",
@@ -7,33 +9,38 @@
   "Remaining Time": "Kalan Süre",
   "Stream Type": "Yayın Tipi",
   "LIVE": "CANLI",
+  "Seek to live, currently behind live": "Canlıya git, şu anda canlının gerisinde",
+  "Seek to live, currently playing live": "Canlıya git, şu anda canlı oynuyor",
   "Loaded": "Yüklendi",
   "Progress": "Yükleniyor",
+  "Progress Bar": "İlerleme Çubuğu",
+  "progress bar timing: currentTime={1} duration={2}": "{1}/{2}",
   "Fullscreen": "Tam Ekran",
-  "Non-Fullscreen": "Küçük Ekran",
-  "Mute": "Ses Kapa",
-  "Unmute": "Ses Aç",
+  "Exit Fullscreen": "Tam Ekrandan Çık",
+  "Mute": "Sessiz",
+  "Unmute": "Sesi Aç",
   "Playback Rate": "Oynatma Hızı",
-  "Subtitles": "Altyazı",
+  "Subtitles": "Altyazılar",
   "subtitles off": "Altyazı Kapalı",
-  "Captions": "Altyazı",
+  "Captions": "Altyazılar",
   "captions off": "Altyazı Kapalı",
   "Chapters": "Bölümler",
-  "Close Modal Dialog": "Dialogu Kapat",
+  "Close Modal Dialog": "Etkileşim Penceresini Kapat",
   "Descriptions": "Açıklamalar",
-  "descriptions off": "Açıklamalar kapalı",
-  "Audio Track": "Ses Dosyası",
-  "You aborted the media playback": "Video oynatmayı iptal ettiniz",
-  "A network error caused the media download to fail part-way.": "Video indirilirken bağlantı sorunu oluştu.",
-  "The media could not be loaded, either because the server or network failed or because the format is not supported.": "Video oynatılamadı, ağ ya da sunucu hatası veya belirtilen format desteklenmiyor.",
-  "The media playback was aborted due to a corruption problem or because the media used features your browser did not support.": "Tarayıcınız desteklemediği için videoda hata oluştu.",
-  "No compatible source was found for this media.": "Video için kaynak bulunamadı.",
-  "The media is encrypted and we do not have the keys to decrypt it.": "Video, şifrelenmiş bir kaynaktan geliyor ve oynatmak için gerekli anahtar bulunamadı.",
+  "descriptions off": "açıklamalar kapalı",
+  "Audio Track": "Ses Parçası",
+  "Volume Level": "Ses Düzeyi",
+  "You aborted the media playback": "Medyayı oynatmayı iptal ettiniz",
+  "A network error caused the media download to fail part-way.": "Medya indirme işleminin kısmen başarısız olmasına neden olan bir ağ sorunu oluştu.",
+  "The media could not be loaded, either because the server or network failed or because the format is not supported.": "Sunucu veya ağ hatasından ya da biçim desteklenmediğinden medya yüklenemedi.",
+  "The media playback was aborted due to a corruption problem or because the media used features your browser did not support.": "Medya oynatma, bir bozulma sorunu nedeniyle veya medya, tarayıcınızın desteklemediği özellikleri kullandığı için durduruldu.",
+  "No compatible source was found for this media.": "Bu medya için uyumlu bir kaynak bulunamadı.",
+  "The media is encrypted and we do not have the keys to decrypt it.": "Medya, şifrelenmiş bir kaynaktan geliyor ve oynatmak için gerekli anahtar bulunamadı.",
   "Play Video": "Videoyu Oynat",
   "Close": "Kapat",
-  "Modal Window": "Modal Penceresi",
-  "This is a modal window": "Bu bir modal penceresidir",
-  "This modal can be closed by pressing the Escape key or activating the close button.": "Bu modal ESC tuşuna basarak ya da kapata tıklanarak kapatılabilir.",
+  "Modal Window": "Etkileşim Penceresi",
+  "This is a modal window": "Bu bir etkileşim penceresidir",
+  "This modal can be closed by pressing the Escape key or activating the close button.": "Bu etkileşim penceresi ESC tuşuna basarak ya da kapat butonuna tıklanarak kapatılabilir.",
   ", opens captions settings dialog": ", altyazı ayarları menüsünü açar",
   ", opens subtitles settings dialog": ", altyazı ayarları menüsünü açar",
   ", opens descriptions settings dialog": ", açıklama ayarları menüsünü açar",
@@ -41,7 +48,7 @@
   "captions settings": "altyazı ayarları",
   "subtitles settings": "altyazı ayarları",
   "descriptions settings": "açıklama ayarları",
-  "Text": "Yazı",
+  "Text": "Metin",
   "White": "Beyaz",
   "Black": "Siyah",
   "Red": "Kırmızı",
@@ -55,10 +62,10 @@
   "Transparent": "Saydam",
   "Semi-Transparent": "Yarı-Saydam",
   "Opaque": "Mat",
-  "Font Size": "Yazı Boyutu",
-  "Text Edge Style": "Yazı Kenarlıkları",
+  "Font Size": "Metin Boyutu",
+  "Text Edge Style": "Metin Kenar Stili",
   "None": "Hiçbiri",
-  "Raised": "Kabartılmış",
+  "Raised": "Kabarık",
   "Depressed": "Yassı",
   "Uniform": "Düz",
   "Dropshadow": "Gölgeli",
@@ -70,7 +77,14 @@
   "Casual": "Gündelik",
   "Script": "El Yazısı",
   "Small Caps": "Küçük Boyutlu Büyük Harfli",
+  "Reset": "Sıfırla",
+  "restore all settings to the default values": "tüm ayarları varsayılan değerlere geri yükler",
   "Done": "Tamam",
   "Caption Settings Dialog": "Altyazı Ayarları Menüsü",
-  "Beginning of dialog window. Escape will cancel and close the window.": "Diyalog penceresinin başlangıcı. ESC tuşu işlemi iptal edip pencereyi kapatacaktır."
+  "Beginning of dialog window. Escape will cancel and close the window.": "Etkileşim penceresinin başlangıcı. ESC tuşu işlemi iptal edip pencereyi kapatacaktır.",
+  "End of dialog window.": "Etkileşim penceresinin sonu.",
+  "{1} is loading.": "{1} yükleniyor.",
+  "Exit Picture-in-Picture": "Mini oynatıcıdan çık",
+  "Picture-in-Picture": "Mini oynatıcı",
+  "No content": "İçerik yok"
 }
diff --git a/media/player/videojs/videojs/lang/uk.js b/media/player/videojs/videojs/lang/uk.js
index 2d801feb481..29eb8704452 100644
--- a/media/player/videojs/videojs/lang/uk.js
+++ b/media/player/videojs/videojs/lang/uk.js
@@ -14,7 +14,7 @@ videojs.addLanguage('uk', {
   "Progress Bar": "Індикатор завантаження",
   "progress bar timing: currentTime={1} duration={2}": "{1} з {2}",
   "Fullscreen": "Повноекранний режим",
-  "Non-Fullscreen": "Неповноекранний режим",
+  "Exit Fullscreen": "Неповноекранний режим",
   "Mute": "Без звуку",
   "Unmute": "Зі звуком",
   "Playback Rate": "Швидкість відтворення",
diff --git a/media/player/videojs/videojs/lang/uk.json b/media/player/videojs/videojs/lang/uk.json
index 17a840d82f2..c96081c3dc8 100644
--- a/media/player/videojs/videojs/lang/uk.json
+++ b/media/player/videojs/videojs/lang/uk.json
@@ -14,7 +14,7 @@
   "Progress Bar": "Індикатор завантаження",
   "progress bar timing: currentTime={1} duration={2}": "{1} з {2}",  
   "Fullscreen": "Повноекранний режим",
-  "Non-Fullscreen": "Неповноекранний режим",
+  "Exit Fullscreen": "Неповноекранний режим",
   "Mute": "Без звуку",
   "Unmute": "Зі звуком",
   "Playback Rate": "Швидкість відтворення",
diff --git a/media/player/videojs/videojs/lang/vi.js b/media/player/videojs/videojs/lang/vi.js
index be0772e057c..c226255e3ee 100644
--- a/media/player/videojs/videojs/lang/vi.js
+++ b/media/player/videojs/videojs/lang/vi.js
@@ -14,7 +14,7 @@ videojs.addLanguage('vi', {
   "Progress Bar": "Thanh tiến trình",
   "progress bar timing: currentTime={1} duration={2}": "{1} của {2}",
   "Fullscreen": "Toàn màn hình",
-  "Non-Fullscreen": "Thoát toàn màn hình",
+  "Exit Fullscreen": "Thoát toàn màn hình",
   "Mute": "Tắt tiếng",
   "Unmute": "Bật âm thanh",
   "Playback Rate": "Tỉ lệ phát lại",
diff --git a/media/player/videojs/videojs/lang/vi.json b/media/player/videojs/videojs/lang/vi.json
index 5e95b533455..bb6ccfe8485 100644
--- a/media/player/videojs/videojs/lang/vi.json
+++ b/media/player/videojs/videojs/lang/vi.json
@@ -14,7 +14,7 @@
   "Progress Bar": "Thanh tiến trình",
   "progress bar timing: currentTime={1} duration={2}": "{1} của {2}",
   "Fullscreen": "Toàn màn hình",
-  "Non-Fullscreen": "Thoát toàn màn hình",
+  "Exit Fullscreen": "Thoát toàn màn hình",
   "Mute": "Tắt tiếng",
   "Unmute": "Bật âm thanh",
   "Playback Rate": "Tỉ lệ phát lại",
diff --git a/media/player/videojs/videojs/lang/zh-CN.js b/media/player/videojs/videojs/lang/zh-CN.js
index dcd07817850..ab070318ed6 100644
--- a/media/player/videojs/videojs/lang/zh-CN.js
+++ b/media/player/videojs/videojs/lang/zh-CN.js
@@ -9,11 +9,11 @@ videojs.addLanguage('zh-CN', {
   "Loaded": "加载完成",
   "Progress": "进度",
   "Fullscreen": "全屏",
-  "Non-Fullscreen": "退出全屏",
+  "Exit Fullscreen": "退出全屏",
   "Picture-in-Picture": "画中画",
   "Exit Picture-in-Picture": "退出画中画",
   "Mute": "静音",
-  "Unmute": "取消静音",
+  "Unmute": "开启音效",
   "Playback Rate": "播放速度",
   "Subtitles": "字幕",
   "subtitles off": "关闭字幕",
@@ -85,5 +85,12 @@ videojs.addLanguage('zh-CN', {
   "Seek to live, currently behind live": "尝试直播，当前为延时播放",
   "Seek to live, currently playing live": "尝试直播，当前为实时播放",
   "progress bar timing: currentTime={1} duration={2}": "{1}/{2}",
-  "{1} is loading.": "正在加载 {1}。"
+  "{1} is loading.": "正在加载 {1}。",
+  "No content": "无内容",
+  "Color": "颜色",
+  "Opacity": "不透明度",
+  "Text Background": "文本背景",
+  "Caption Area Background": "字幕区域背景",
+  "Skip forward {1} seconds": "快进 {1} 秒",
+  "Skip backward {1} seconds": "快退 {1} 秒"
 });
\ No newline at end of file
diff --git a/media/player/videojs/videojs/lang/zh-CN.json b/media/player/videojs/videojs/lang/zh-CN.json
index 976bec11866..0ecfccff89d 100644
--- a/media/player/videojs/videojs/lang/zh-CN.json
+++ b/media/player/videojs/videojs/lang/zh-CN.json
@@ -9,11 +9,11 @@
   "Loaded": "加载完成",
   "Progress": "进度",
   "Fullscreen": "全屏",
-  "Non-Fullscreen": "退出全屏",
+  "Exit Fullscreen": "退出全屏",
   "Picture-in-Picture": "画中画",
   "Exit Picture-in-Picture": "退出画中画",
   "Mute": "静音",
-  "Unmute": "取消静音",
+  "Unmute": "开启音效",
   "Playback Rate": "播放速度",
   "Subtitles": "字幕",
   "subtitles off": "关闭字幕",
@@ -85,5 +85,12 @@
   "Seek to live, currently behind live": "尝试直播，当前为延时播放",
   "Seek to live, currently playing live": "尝试直播，当前为实时播放",
   "progress bar timing: currentTime={1} duration={2}": "{1}/{2}",
-  "{1} is loading.": "正在加载 {1}。"
+  "{1} is loading.": "正在加载 {1}。",
+  "No content": "无内容",
+  "Color": "颜色",
+  "Opacity": "不透明度",
+  "Text Background": "文本背景",
+  "Caption Area Background": "字幕区域背景",
+  "Skip forward {1} seconds": "快进 {1} 秒",
+  "Skip backward {1} seconds":  "快退 {1} 秒"
 }
diff --git a/media/player/videojs/videojs/lang/zh-Hans.js b/media/player/videojs/videojs/lang/zh-Hans.js
index c95f9dc2138..236f9817acc 100644
--- a/media/player/videojs/videojs/lang/zh-Hans.js
+++ b/media/player/videojs/videojs/lang/zh-Hans.js
@@ -9,11 +9,11 @@ videojs.addLanguage('zh-Hans', {
   "Loaded": "加载完成",
   "Progress": "进度",
   "Fullscreen": "全屏",
-  "Non-Fullscreen": "退出全屏",
+  "Exit Fullscreen": "退出全屏",
   "Picture-in-Picture": "画中画",
   "Exit Picture-in-Picture": "退出画中画",
   "Mute": "静音",
-  "Unmute": "取消静音",
+  "Unmute": "开启音效",
   "Playback Rate": "播放速度",
   "Subtitles": "字幕",
   "subtitles off": "关闭字幕",
@@ -85,5 +85,12 @@ videojs.addLanguage('zh-Hans', {
   "Seek to live, currently behind live": "尝试直播，当前为延时播放",
   "Seek to live, currently playing live": "尝试直播，当前为实时播放",
   "progress bar timing: currentTime={1} duration={2}": "{1}/{2}",
-  "{1} is loading.": "正在加载 {1}。"
+  "{1} is loading.": "正在加载 {1}。",
+  "No content": "无内容",
+  "Color": "颜色",
+  "Opacity": "不透明度",
+  "Text Background": "文本背景",
+  "Caption Area Background": "字幕区域背景",
+  "Skip forward {1} seconds": "快进 {1} 秒",
+  "Skip backward {1} seconds": "快退 {1} 秒"
 });
\ No newline at end of file
diff --git a/media/player/videojs/videojs/lang/zh-Hans.json b/media/player/videojs/videojs/lang/zh-Hans.json
index 976bec11866..0ecfccff89d 100644
--- a/media/player/videojs/videojs/lang/zh-Hans.json
+++ b/media/player/videojs/videojs/lang/zh-Hans.json
@@ -9,11 +9,11 @@
   "Loaded": "加载完成",
   "Progress": "进度",
   "Fullscreen": "全屏",
-  "Non-Fullscreen": "退出全屏",
+  "Exit Fullscreen": "退出全屏",
   "Picture-in-Picture": "画中画",
   "Exit Picture-in-Picture": "退出画中画",
   "Mute": "静音",
-  "Unmute": "取消静音",
+  "Unmute": "开启音效",
   "Playback Rate": "播放速度",
   "Subtitles": "字幕",
   "subtitles off": "关闭字幕",
@@ -85,5 +85,12 @@
   "Seek to live, currently behind live": "尝试直播，当前为延时播放",
   "Seek to live, currently playing live": "尝试直播，当前为实时播放",
   "progress bar timing: currentTime={1} duration={2}": "{1}/{2}",
-  "{1} is loading.": "正在加载 {1}。"
+  "{1} is loading.": "正在加载 {1}。",
+  "No content": "无内容",
+  "Color": "颜色",
+  "Opacity": "不透明度",
+  "Text Background": "文本背景",
+  "Caption Area Background": "字幕区域背景",
+  "Skip forward {1} seconds": "快进 {1} 秒",
+  "Skip backward {1} seconds":  "快退 {1} 秒"
 }
diff --git a/media/player/videojs/videojs/lang/zh-Hant.js b/media/player/videojs/videojs/lang/zh-Hant.js
index 7288d254bb7..a651449f81f 100644
--- a/media/player/videojs/videojs/lang/zh-Hant.js
+++ b/media/player/videojs/videojs/lang/zh-Hant.js
@@ -9,9 +9,11 @@ videojs.addLanguage('zh-Hant', {
   "Loaded": "載入完畢",
   "Progress": "進度",
   "Fullscreen": "全螢幕",
-  "Non-Fullscreen": "退出全螢幕",
+  "Exit Fullscreen": "退出全螢幕",
+  "Picture-in-Picture": "子母畫面",
+  "Exit Picture-in-Picture": "退出子母畫面",
   "Mute": "靜音",
-  "Unmute": "取消靜音",
+  "Unmute": "開啟音效",
   "Playback Rate": " 播放速率",
   "Subtitles": "字幕",
   "subtitles off": "關閉字幕",
@@ -83,5 +85,12 @@ videojs.addLanguage('zh-Hant', {
   "Seek to live, currently behind live": "快轉至直播，目前為稍早畫面",
   "Seek to live, currently playing live": "快轉至直播，目前為現場畫面",
   "progress bar timing: currentTime={1} duration={2}": "{1}/{2}",
-  "{1} is loading.": "{1} 正在載入。"
+  "{1} is loading.": "{1} 正在載入。",
+  "No content": "無內容",
+  "Color": "顏色",
+  "Opacity": "不透明度",
+  "Text Background": "文字背景",
+  "Caption Area Background": "字幕區域背景",
+  "Skip forward {1} seconds": "快轉 {1} 秒",
+  "Skip backward {1} seconds": "倒轉 {1} 秒"
 });
\ No newline at end of file
diff --git a/media/player/videojs/videojs/lang/zh-Hant.json b/media/player/videojs/videojs/lang/zh-Hant.json
index 2eea01583fb..86892e47686 100644
--- a/media/player/videojs/videojs/lang/zh-Hant.json
+++ b/media/player/videojs/videojs/lang/zh-Hant.json
@@ -9,9 +9,11 @@
   "Loaded": "載入完畢",
   "Progress": "進度",
   "Fullscreen": "全螢幕",
-  "Non-Fullscreen": "退出全螢幕",
+  "Exit Fullscreen": "退出全螢幕",
+  "Picture-in-Picture": "子母畫面",
+  "Exit Picture-in-Picture": "退出子母畫面",
   "Mute": "靜音",
-  "Unmute": "取消靜音",
+  "Unmute": "開啟音效",
   "Playback Rate": " 播放速率",
   "Subtitles": "字幕",
   "subtitles off": "關閉字幕",
@@ -83,5 +85,12 @@
   "Seek to live, currently behind live": "快轉至直播，目前為稍早畫面",
   "Seek to live, currently playing live": "快轉至直播，目前為現場畫面",
   "progress bar timing: currentTime={1} duration={2}": "{1}/{2}",
-  "{1} is loading.": "{1} 正在載入。"
+  "{1} is loading.": "{1} 正在載入。",
+  "No content": "無內容",
+  "Color": "顏色",
+  "Opacity": "不透明度",
+  "Text Background": "文字背景",
+  "Caption Area Background": "字幕區域背景",
+  "Skip forward {1} seconds": "快轉 {1} 秒",
+  "Skip backward {1} seconds": "倒轉 {1} 秒"
 }
diff --git a/media/player/videojs/videojs/lang/zh-TW.js b/media/player/videojs/videojs/lang/zh-TW.js
index 2add724945d..8d932d087a9 100644
--- a/media/player/videojs/videojs/lang/zh-TW.js
+++ b/media/player/videojs/videojs/lang/zh-TW.js
@@ -9,9 +9,11 @@ videojs.addLanguage('zh-TW', {
   "Loaded": "載入完畢",
   "Progress": "進度",
   "Fullscreen": "全螢幕",
-  "Non-Fullscreen": "退出全螢幕",
+  "Exit Fullscreen": "退出全螢幕",
+  "Picture-in-Picture": "子母畫面",
+  "Exit Picture-in-Picture": "退出子母畫面",
   "Mute": "靜音",
-  "Unmute": "取消靜音",
+  "Unmute": "開啟音效",
   "Playback Rate": " 播放速率",
   "Subtitles": "字幕",
   "subtitles off": "關閉字幕",
@@ -83,5 +85,12 @@ videojs.addLanguage('zh-TW', {
   "Seek to live, currently behind live": "快轉至直播，目前為稍早畫面",
   "Seek to live, currently playing live": "快轉至直播，目前為現場畫面",
   "progress bar timing: currentTime={1} duration={2}": "{1}/{2}",
-  "{1} is loading.": "{1} 正在載入。"
+  "{1} is loading.": "{1} 正在載入。",
+  "No content": "無內容",
+  "Color": "顏色",
+  "Opacity": "不透明度",
+  "Text Background": "文字背景",
+  "Caption Area Background": "字幕區域背景",
+  "Skip forward {1} seconds": "快轉 {1} 秒",
+  "Skip backward {1} seconds": "倒轉 {1} 秒"
 });
\ No newline at end of file
diff --git a/media/player/videojs/videojs/lang/zh-TW.json b/media/player/videojs/videojs/lang/zh-TW.json
index 2eea01583fb..86892e47686 100644
--- a/media/player/videojs/videojs/lang/zh-TW.json
+++ b/media/player/videojs/videojs/lang/zh-TW.json
@@ -9,9 +9,11 @@
   "Loaded": "載入完畢",
   "Progress": "進度",
   "Fullscreen": "全螢幕",
-  "Non-Fullscreen": "退出全螢幕",
+  "Exit Fullscreen": "退出全螢幕",
+  "Picture-in-Picture": "子母畫面",
+  "Exit Picture-in-Picture": "退出子母畫面",
   "Mute": "靜音",
-  "Unmute": "取消靜音",
+  "Unmute": "開啟音效",
   "Playback Rate": " 播放速率",
   "Subtitles": "字幕",
   "subtitles off": "關閉字幕",
@@ -83,5 +85,12 @@
   "Seek to live, currently behind live": "快轉至直播，目前為稍早畫面",
   "Seek to live, currently playing live": "快轉至直播，目前為現場畫面",
   "progress bar timing: currentTime={1} duration={2}": "{1}/{2}",
-  "{1} is loading.": "{1} 正在載入。"
+  "{1} is loading.": "{1} 正在載入。",
+  "No content": "無內容",
+  "Color": "顏色",
+  "Opacity": "不透明度",
+  "Text Background": "文字背景",
+  "Caption Area Background": "字幕區域背景",
+  "Skip forward {1} seconds": "快轉 {1} 秒",
+  "Skip backward {1} seconds": "倒轉 {1} 秒"
 }